workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12pub mod shared_screen;
   13mod status_bar;
   14pub mod tasks;
   15mod theme_preview;
   16mod toast_layer;
   17mod toolbar;
   18mod workspace_settings;
   19
   20pub use crate::notifications::NotificationFrame;
   21pub use dock::Panel;
   22pub use path_list::PathList;
   23pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   24
   25use anyhow::{Context as _, Result, anyhow};
   26use call::{ActiveCall, call_settings::CallSettings};
   27use client::{
   28    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   29    proto::{self, ErrorCode, PanelId, PeerId},
   30};
   31use collections::{HashMap, HashSet, hash_map};
   32use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   33use futures::{
   34    Future, FutureExt, StreamExt,
   35    channel::{
   36        mpsc::{self, UnboundedReceiver, UnboundedSender},
   37        oneshot,
   38    },
   39    future::{Shared, try_join_all},
   40};
   41use gpui::{
   42    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   43    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   44    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   45    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   46    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   47    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   48};
   49pub use history_manager::*;
   50pub use item::{
   51    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   52    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   53};
   54use itertools::Itertools;
   55use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   56pub use modal_layer::*;
   57use node_runtime::NodeRuntime;
   58use notifications::{
   59    DetachAndPromptErr, Notifications, dismiss_app_notification,
   60    simple_message_notification::MessageNotification,
   61};
   62pub use pane::*;
   63pub use pane_group::{
   64    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   65    SplitDirection,
   66};
   67use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   68pub use persistence::{
   69    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   70    model::{ItemId, SerializedWorkspaceLocation},
   71};
   72use postage::stream::Stream;
   73use project::{
   74    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   75    WorktreeSettings,
   76    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   77    toolchain_store::ToolchainStoreEvent,
   78};
   79use remote::{
   80    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   81    remote_client::ConnectionIdentifier,
   82};
   83use schemars::JsonSchema;
   84use serde::Deserialize;
   85use session::AppSession;
   86use settings::{CenteredPaddingSettings, Settings, SettingsLocation, update_settings_file};
   87use shared_screen::SharedScreen;
   88use sqlez::{
   89    bindable::{Bind, Column, StaticColumnCount},
   90    statement::Statement,
   91};
   92use status_bar::StatusBar;
   93pub use status_bar::StatusItemView;
   94use std::{
   95    any::TypeId,
   96    borrow::Cow,
   97    cell::RefCell,
   98    cmp,
   99    collections::{VecDeque, hash_map::DefaultHasher},
  100    env,
  101    hash::{Hash, Hasher},
  102    path::{Path, PathBuf},
  103    process::ExitStatus,
  104    rc::Rc,
  105    sync::{
  106        Arc, LazyLock, Weak,
  107        atomic::{AtomicBool, AtomicUsize},
  108    },
  109    time::Duration,
  110};
  111use task::{DebugScenario, SpawnInTerminal, TaskContext};
  112use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  113pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  114pub use ui;
  115use ui::{Window, prelude::*};
  116use util::{
  117    ResultExt, TryFutureExt,
  118    paths::{PathStyle, SanitizedPath},
  119    rel_path::RelPath,
  120    serde::default_true,
  121};
  122use uuid::Uuid;
  123pub use workspace_settings::{
  124    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  125    WorkspaceSettings,
  126};
  127use zed_actions::{Spawn, feedback::FileBugReport};
  128
  129use crate::persistence::{
  130    SerializedAxis,
  131    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  132};
  133use crate::{item::ItemBufferKind, notifications::NotificationId};
  134
  135pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  136
  137static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  138    env::var("ZED_WINDOW_SIZE")
  139        .ok()
  140        .as_deref()
  141        .and_then(parse_pixel_size_env_var)
  142});
  143
  144static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  145    env::var("ZED_WINDOW_POSITION")
  146        .ok()
  147        .as_deref()
  148        .and_then(parse_pixel_position_env_var)
  149});
  150
  151pub trait TerminalProvider {
  152    fn spawn(
  153        &self,
  154        task: SpawnInTerminal,
  155        window: &mut Window,
  156        cx: &mut App,
  157    ) -> Task<Option<Result<ExitStatus>>>;
  158}
  159
  160pub trait DebuggerProvider {
  161    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  162    fn start_session(
  163        &self,
  164        definition: DebugScenario,
  165        task_context: TaskContext,
  166        active_buffer: Option<Entity<Buffer>>,
  167        worktree_id: Option<WorktreeId>,
  168        window: &mut Window,
  169        cx: &mut App,
  170    );
  171
  172    fn spawn_task_or_modal(
  173        &self,
  174        workspace: &mut Workspace,
  175        action: &Spawn,
  176        window: &mut Window,
  177        cx: &mut Context<Workspace>,
  178    );
  179
  180    fn task_scheduled(&self, cx: &mut App);
  181    fn debug_scenario_scheduled(&self, cx: &mut App);
  182    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  183
  184    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  185}
  186
  187actions!(
  188    workspace,
  189    [
  190        /// Activates the next pane in the workspace.
  191        ActivateNextPane,
  192        /// Activates the previous pane in the workspace.
  193        ActivatePreviousPane,
  194        /// Switches to the next window.
  195        ActivateNextWindow,
  196        /// Switches to the previous window.
  197        ActivatePreviousWindow,
  198        /// Adds a folder to the current project.
  199        AddFolderToProject,
  200        /// Clears all notifications.
  201        ClearAllNotifications,
  202        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  203        ClearNavigationHistory,
  204        /// Closes the active dock.
  205        CloseActiveDock,
  206        /// Closes all docks.
  207        CloseAllDocks,
  208        /// Toggles all docks.
  209        ToggleAllDocks,
  210        /// Closes the current window.
  211        CloseWindow,
  212        /// Opens the feedback dialog.
  213        Feedback,
  214        /// Follows the next collaborator in the session.
  215        FollowNextCollaborator,
  216        /// Moves the focused panel to the next position.
  217        MoveFocusedPanelToNextPosition,
  218        /// Opens a new terminal in the center.
  219        NewCenterTerminal,
  220        /// Creates a new file.
  221        NewFile,
  222        /// Creates a new file in a vertical split.
  223        NewFileSplitVertical,
  224        /// Creates a new file in a horizontal split.
  225        NewFileSplitHorizontal,
  226        /// Opens a new search.
  227        NewSearch,
  228        /// Opens a new terminal.
  229        NewTerminal,
  230        /// Opens a new window.
  231        NewWindow,
  232        /// Opens a file or directory.
  233        Open,
  234        /// Opens multiple files.
  235        OpenFiles,
  236        /// Opens the current location in terminal.
  237        OpenInTerminal,
  238        /// Opens the component preview.
  239        OpenComponentPreview,
  240        /// Reloads the active item.
  241        ReloadActiveItem,
  242        /// Resets the active dock to its default size.
  243        ResetActiveDockSize,
  244        /// Resets all open docks to their default sizes.
  245        ResetOpenDocksSize,
  246        /// Reloads the application
  247        Reload,
  248        /// Saves the current file with a new name.
  249        SaveAs,
  250        /// Saves without formatting.
  251        SaveWithoutFormat,
  252        /// Shuts down all debug adapters.
  253        ShutdownDebugAdapters,
  254        /// Suppresses the current notification.
  255        SuppressNotification,
  256        /// Toggles the bottom dock.
  257        ToggleBottomDock,
  258        /// Toggles centered layout mode.
  259        ToggleCenteredLayout,
  260        /// Toggles edit prediction feature globally for all files.
  261        ToggleEditPrediction,
  262        /// Toggles the left dock.
  263        ToggleLeftDock,
  264        /// Toggles the right dock.
  265        ToggleRightDock,
  266        /// Toggles zoom on the active pane.
  267        ToggleZoom,
  268        /// Stops following a collaborator.
  269        Unfollow,
  270        /// Restores the banner.
  271        RestoreBanner,
  272        /// Toggles expansion of the selected item.
  273        ToggleExpandItem,
  274    ]
  275);
  276
  277/// Activates a specific pane by its index.
  278#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  279#[action(namespace = workspace)]
  280pub struct ActivatePane(pub usize);
  281
  282/// Moves an item to a specific pane by index.
  283#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  284#[action(namespace = workspace)]
  285#[serde(deny_unknown_fields)]
  286pub struct MoveItemToPane {
  287    #[serde(default = "default_1")]
  288    pub destination: usize,
  289    #[serde(default = "default_true")]
  290    pub focus: bool,
  291    #[serde(default)]
  292    pub clone: bool,
  293}
  294
  295fn default_1() -> usize {
  296    1
  297}
  298
  299/// Moves an item to a pane in the specified direction.
  300#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  301#[action(namespace = workspace)]
  302#[serde(deny_unknown_fields)]
  303pub struct MoveItemToPaneInDirection {
  304    #[serde(default = "default_right")]
  305    pub direction: SplitDirection,
  306    #[serde(default = "default_true")]
  307    pub focus: bool,
  308    #[serde(default)]
  309    pub clone: bool,
  310}
  311
  312/// Creates a new file in a split of the desired direction.
  313#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  314#[action(namespace = workspace)]
  315#[serde(deny_unknown_fields)]
  316pub struct NewFileSplit(pub SplitDirection);
  317
  318fn default_right() -> SplitDirection {
  319    SplitDirection::Right
  320}
  321
  322/// Saves all open files in the workspace.
  323#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  324#[action(namespace = workspace)]
  325#[serde(deny_unknown_fields)]
  326pub struct SaveAll {
  327    #[serde(default)]
  328    pub save_intent: Option<SaveIntent>,
  329}
  330
  331/// Saves the current file with the specified options.
  332#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  333#[action(namespace = workspace)]
  334#[serde(deny_unknown_fields)]
  335pub struct Save {
  336    #[serde(default)]
  337    pub save_intent: Option<SaveIntent>,
  338}
  339
  340/// Closes all items and panes in the workspace.
  341#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  342#[action(namespace = workspace)]
  343#[serde(deny_unknown_fields)]
  344pub struct CloseAllItemsAndPanes {
  345    #[serde(default)]
  346    pub save_intent: Option<SaveIntent>,
  347}
  348
  349/// Closes all inactive tabs and panes in the workspace.
  350#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  351#[action(namespace = workspace)]
  352#[serde(deny_unknown_fields)]
  353pub struct CloseInactiveTabsAndPanes {
  354    #[serde(default)]
  355    pub save_intent: Option<SaveIntent>,
  356}
  357
  358/// Sends a sequence of keystrokes to the active element.
  359#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  360#[action(namespace = workspace)]
  361pub struct SendKeystrokes(pub String);
  362
  363actions!(
  364    project_symbols,
  365    [
  366        /// Toggles the project symbols search.
  367        #[action(name = "Toggle")]
  368        ToggleProjectSymbols
  369    ]
  370);
  371
  372/// Toggles the file finder interface.
  373#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  374#[action(namespace = file_finder, name = "Toggle")]
  375#[serde(deny_unknown_fields)]
  376pub struct ToggleFileFinder {
  377    #[serde(default)]
  378    pub separate_history: bool,
  379}
  380
  381/// Increases size of a currently focused dock by a given amount of pixels.
  382#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  383#[action(namespace = workspace)]
  384#[serde(deny_unknown_fields)]
  385pub struct IncreaseActiveDockSize {
  386    /// For 0px parameter, uses UI font size value.
  387    #[serde(default)]
  388    pub px: u32,
  389}
  390
  391/// Decreases size of a currently focused dock by a given amount of pixels.
  392#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  393#[action(namespace = workspace)]
  394#[serde(deny_unknown_fields)]
  395pub struct DecreaseActiveDockSize {
  396    /// For 0px parameter, uses UI font size value.
  397    #[serde(default)]
  398    pub px: u32,
  399}
  400
  401/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  402#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  403#[action(namespace = workspace)]
  404#[serde(deny_unknown_fields)]
  405pub struct IncreaseOpenDocksSize {
  406    /// For 0px parameter, uses UI font size value.
  407    #[serde(default)]
  408    pub px: u32,
  409}
  410
  411/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  412#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  413#[action(namespace = workspace)]
  414#[serde(deny_unknown_fields)]
  415pub struct DecreaseOpenDocksSize {
  416    /// For 0px parameter, uses UI font size value.
  417    #[serde(default)]
  418    pub px: u32,
  419}
  420
  421actions!(
  422    workspace,
  423    [
  424        /// Activates the pane to the left.
  425        ActivatePaneLeft,
  426        /// Activates the pane to the right.
  427        ActivatePaneRight,
  428        /// Activates the pane above.
  429        ActivatePaneUp,
  430        /// Activates the pane below.
  431        ActivatePaneDown,
  432        /// Swaps the current pane with the one to the left.
  433        SwapPaneLeft,
  434        /// Swaps the current pane with the one to the right.
  435        SwapPaneRight,
  436        /// Swaps the current pane with the one above.
  437        SwapPaneUp,
  438        /// Swaps the current pane with the one below.
  439        SwapPaneDown,
  440        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  441        SwapPaneAdjacent,
  442        /// Move the current pane to be at the far left.
  443        MovePaneLeft,
  444        /// Move the current pane to be at the far right.
  445        MovePaneRight,
  446        /// Move the current pane to be at the very top.
  447        MovePaneUp,
  448        /// Move the current pane to be at the very bottom.
  449        MovePaneDown,
  450    ]
  451);
  452
  453#[derive(PartialEq, Eq, Debug)]
  454pub enum CloseIntent {
  455    /// Quit the program entirely.
  456    Quit,
  457    /// Close a window.
  458    CloseWindow,
  459    /// Replace the workspace in an existing window.
  460    ReplaceWindow,
  461}
  462
  463#[derive(Clone)]
  464pub struct Toast {
  465    id: NotificationId,
  466    msg: Cow<'static, str>,
  467    autohide: bool,
  468    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  469}
  470
  471impl Toast {
  472    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  473        Toast {
  474            id,
  475            msg: msg.into(),
  476            on_click: None,
  477            autohide: false,
  478        }
  479    }
  480
  481    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  482    where
  483        M: Into<Cow<'static, str>>,
  484        F: Fn(&mut Window, &mut App) + 'static,
  485    {
  486        self.on_click = Some((message.into(), Arc::new(on_click)));
  487        self
  488    }
  489
  490    pub fn autohide(mut self) -> Self {
  491        self.autohide = true;
  492        self
  493    }
  494}
  495
  496impl PartialEq for Toast {
  497    fn eq(&self, other: &Self) -> bool {
  498        self.id == other.id
  499            && self.msg == other.msg
  500            && self.on_click.is_some() == other.on_click.is_some()
  501    }
  502}
  503
  504/// Opens a new terminal with the specified working directory.
  505#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  506#[action(namespace = workspace)]
  507#[serde(deny_unknown_fields)]
  508pub struct OpenTerminal {
  509    pub working_directory: PathBuf,
  510}
  511
  512#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  513pub struct WorkspaceId(i64);
  514
  515impl StaticColumnCount for WorkspaceId {}
  516impl Bind for WorkspaceId {
  517    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  518        self.0.bind(statement, start_index)
  519    }
  520}
  521impl Column for WorkspaceId {
  522    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  523        i64::column(statement, start_index)
  524            .map(|(i, next_index)| (Self(i), next_index))
  525            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  526    }
  527}
  528impl From<WorkspaceId> for i64 {
  529    fn from(val: WorkspaceId) -> Self {
  530        val.0
  531    }
  532}
  533
  534fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  535    let paths = cx.prompt_for_paths(options);
  536    cx.spawn(
  537        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  538            Ok(Some(paths)) => {
  539                cx.update(|cx| {
  540                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  541                })
  542                .ok();
  543            }
  544            Ok(None) => {}
  545            Err(err) => {
  546                util::log_err(&err);
  547                cx.update(|cx| {
  548                    if let Some(workspace_window) = cx
  549                        .active_window()
  550                        .and_then(|window| window.downcast::<Workspace>())
  551                    {
  552                        workspace_window
  553                            .update(cx, |workspace, _, cx| {
  554                                workspace.show_portal_error(err.to_string(), cx);
  555                            })
  556                            .ok();
  557                    }
  558                })
  559                .ok();
  560            }
  561        },
  562    )
  563    .detach();
  564}
  565
  566pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  567    component::init();
  568    theme_preview::init(cx);
  569    toast_layer::init(cx);
  570    history_manager::init(cx);
  571
  572    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  573    cx.on_action(|_: &Reload, cx| reload(cx));
  574
  575    cx.on_action({
  576        let app_state = Arc::downgrade(&app_state);
  577        move |_: &Open, cx: &mut App| {
  578            if let Some(app_state) = app_state.upgrade() {
  579                prompt_and_open_paths(
  580                    app_state,
  581                    PathPromptOptions {
  582                        files: true,
  583                        directories: true,
  584                        multiple: true,
  585                        prompt: None,
  586                    },
  587                    cx,
  588                );
  589            }
  590        }
  591    });
  592    cx.on_action({
  593        let app_state = Arc::downgrade(&app_state);
  594        move |_: &OpenFiles, cx: &mut App| {
  595            let directories = cx.can_select_mixed_files_and_dirs();
  596            if let Some(app_state) = app_state.upgrade() {
  597                prompt_and_open_paths(
  598                    app_state,
  599                    PathPromptOptions {
  600                        files: true,
  601                        directories,
  602                        multiple: true,
  603                        prompt: None,
  604                    },
  605                    cx,
  606                );
  607            }
  608        }
  609    });
  610}
  611
  612type BuildProjectItemFn =
  613    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  614
  615type BuildProjectItemForPathFn =
  616    fn(
  617        &Entity<Project>,
  618        &ProjectPath,
  619        &mut Window,
  620        &mut App,
  621    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  622
  623#[derive(Clone, Default)]
  624struct ProjectItemRegistry {
  625    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  626    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  627}
  628
  629impl ProjectItemRegistry {
  630    fn register<T: ProjectItem>(&mut self) {
  631        self.build_project_item_fns_by_type.insert(
  632            TypeId::of::<T::Item>(),
  633            |item, project, pane, window, cx| {
  634                let item = item.downcast().unwrap();
  635                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  636                    as Box<dyn ItemHandle>
  637            },
  638        );
  639        self.build_project_item_for_path_fns
  640            .push(|project, project_path, window, cx| {
  641                let project_path = project_path.clone();
  642                let is_file = project
  643                    .read(cx)
  644                    .entry_for_path(&project_path, cx)
  645                    .is_some_and(|entry| entry.is_file());
  646                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  647                let is_local = project.read(cx).is_local();
  648                let project_item =
  649                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  650                let project = project.clone();
  651                Some(window.spawn(cx, async move |cx| {
  652                    match project_item.await.with_context(|| {
  653                        format!(
  654                            "opening project path {:?}",
  655                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  656                        )
  657                    }) {
  658                        Ok(project_item) => {
  659                            let project_item = project_item;
  660                            let project_entry_id: Option<ProjectEntryId> =
  661                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  662                            let build_workspace_item = Box::new(
  663                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  664                                    Box::new(cx.new(|cx| {
  665                                        T::for_project_item(
  666                                            project,
  667                                            Some(pane),
  668                                            project_item,
  669                                            window,
  670                                            cx,
  671                                        )
  672                                    })) as Box<dyn ItemHandle>
  673                                },
  674                            ) as Box<_>;
  675                            Ok((project_entry_id, build_workspace_item))
  676                        }
  677                        Err(e) => {
  678                            if e.error_code() == ErrorCode::Internal {
  679                                if let Some(abs_path) =
  680                                    entry_abs_path.as_deref().filter(|_| is_file)
  681                                {
  682                                    if let Some(broken_project_item_view) =
  683                                        cx.update(|window, cx| {
  684                                            T::for_broken_project_item(
  685                                                abs_path, is_local, &e, window, cx,
  686                                            )
  687                                        })?
  688                                    {
  689                                        let build_workspace_item = Box::new(
  690                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  691                                                cx.new(|_| broken_project_item_view).boxed_clone()
  692                                            },
  693                                        )
  694                                        as Box<_>;
  695                                        return Ok((None, build_workspace_item));
  696                                    }
  697                                }
  698                            }
  699                            Err(e)
  700                        }
  701                    }
  702                }))
  703            });
  704    }
  705
  706    fn open_path(
  707        &self,
  708        project: &Entity<Project>,
  709        path: &ProjectPath,
  710        window: &mut Window,
  711        cx: &mut App,
  712    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  713        let Some(open_project_item) = self
  714            .build_project_item_for_path_fns
  715            .iter()
  716            .rev()
  717            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  718        else {
  719            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  720        };
  721        open_project_item
  722    }
  723
  724    fn build_item<T: project::ProjectItem>(
  725        &self,
  726        item: Entity<T>,
  727        project: Entity<Project>,
  728        pane: Option<&Pane>,
  729        window: &mut Window,
  730        cx: &mut App,
  731    ) -> Option<Box<dyn ItemHandle>> {
  732        let build = self
  733            .build_project_item_fns_by_type
  734            .get(&TypeId::of::<T>())?;
  735        Some(build(item.into_any(), project, pane, window, cx))
  736    }
  737}
  738
  739type WorkspaceItemBuilder =
  740    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  741
  742impl Global for ProjectItemRegistry {}
  743
  744/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  745/// items will get a chance to open the file, starting from the project item that
  746/// was added last.
  747pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  748    cx.default_global::<ProjectItemRegistry>().register::<I>();
  749}
  750
  751#[derive(Default)]
  752pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  753
  754struct FollowableViewDescriptor {
  755    from_state_proto: fn(
  756        Entity<Workspace>,
  757        ViewId,
  758        &mut Option<proto::view::Variant>,
  759        &mut Window,
  760        &mut App,
  761    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  762    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  763}
  764
  765impl Global for FollowableViewRegistry {}
  766
  767impl FollowableViewRegistry {
  768    pub fn register<I: FollowableItem>(cx: &mut App) {
  769        cx.default_global::<Self>().0.insert(
  770            TypeId::of::<I>(),
  771            FollowableViewDescriptor {
  772                from_state_proto: |workspace, id, state, window, cx| {
  773                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  774                        cx.foreground_executor()
  775                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  776                    })
  777                },
  778                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  779            },
  780        );
  781    }
  782
  783    pub fn from_state_proto(
  784        workspace: Entity<Workspace>,
  785        view_id: ViewId,
  786        mut state: Option<proto::view::Variant>,
  787        window: &mut Window,
  788        cx: &mut App,
  789    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  790        cx.update_default_global(|this: &mut Self, cx| {
  791            this.0.values().find_map(|descriptor| {
  792                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  793            })
  794        })
  795    }
  796
  797    pub fn to_followable_view(
  798        view: impl Into<AnyView>,
  799        cx: &App,
  800    ) -> Option<Box<dyn FollowableItemHandle>> {
  801        let this = cx.try_global::<Self>()?;
  802        let view = view.into();
  803        let descriptor = this.0.get(&view.entity_type())?;
  804        Some((descriptor.to_followable_view)(&view))
  805    }
  806}
  807
  808#[derive(Copy, Clone)]
  809struct SerializableItemDescriptor {
  810    deserialize: fn(
  811        Entity<Project>,
  812        WeakEntity<Workspace>,
  813        WorkspaceId,
  814        ItemId,
  815        &mut Window,
  816        &mut Context<Pane>,
  817    ) -> Task<Result<Box<dyn ItemHandle>>>,
  818    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  819    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  820}
  821
  822#[derive(Default)]
  823struct SerializableItemRegistry {
  824    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  825    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  826}
  827
  828impl Global for SerializableItemRegistry {}
  829
  830impl SerializableItemRegistry {
  831    fn deserialize(
  832        item_kind: &str,
  833        project: Entity<Project>,
  834        workspace: WeakEntity<Workspace>,
  835        workspace_id: WorkspaceId,
  836        item_item: ItemId,
  837        window: &mut Window,
  838        cx: &mut Context<Pane>,
  839    ) -> Task<Result<Box<dyn ItemHandle>>> {
  840        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  841            return Task::ready(Err(anyhow!(
  842                "cannot deserialize {}, descriptor not found",
  843                item_kind
  844            )));
  845        };
  846
  847        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  848    }
  849
  850    fn cleanup(
  851        item_kind: &str,
  852        workspace_id: WorkspaceId,
  853        loaded_items: Vec<ItemId>,
  854        window: &mut Window,
  855        cx: &mut App,
  856    ) -> Task<Result<()>> {
  857        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  858            return Task::ready(Err(anyhow!(
  859                "cannot cleanup {}, descriptor not found",
  860                item_kind
  861            )));
  862        };
  863
  864        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  865    }
  866
  867    fn view_to_serializable_item_handle(
  868        view: AnyView,
  869        cx: &App,
  870    ) -> Option<Box<dyn SerializableItemHandle>> {
  871        let this = cx.try_global::<Self>()?;
  872        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  873        Some((descriptor.view_to_serializable_item)(view))
  874    }
  875
  876    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  877        let this = cx.try_global::<Self>()?;
  878        this.descriptors_by_kind.get(item_kind).copied()
  879    }
  880}
  881
  882pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  883    let serialized_item_kind = I::serialized_item_kind();
  884
  885    let registry = cx.default_global::<SerializableItemRegistry>();
  886    let descriptor = SerializableItemDescriptor {
  887        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  888            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  889            cx.foreground_executor()
  890                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  891        },
  892        cleanup: |workspace_id, loaded_items, window, cx| {
  893            I::cleanup(workspace_id, loaded_items, window, cx)
  894        },
  895        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  896    };
  897    registry
  898        .descriptors_by_kind
  899        .insert(Arc::from(serialized_item_kind), descriptor);
  900    registry
  901        .descriptors_by_type
  902        .insert(TypeId::of::<I>(), descriptor);
  903}
  904
  905pub struct AppState {
  906    pub languages: Arc<LanguageRegistry>,
  907    pub client: Arc<Client>,
  908    pub user_store: Entity<UserStore>,
  909    pub workspace_store: Entity<WorkspaceStore>,
  910    pub fs: Arc<dyn fs::Fs>,
  911    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  912    pub node_runtime: NodeRuntime,
  913    pub session: Entity<AppSession>,
  914}
  915
  916struct GlobalAppState(Weak<AppState>);
  917
  918impl Global for GlobalAppState {}
  919
  920pub struct WorkspaceStore {
  921    workspaces: HashSet<WindowHandle<Workspace>>,
  922    client: Arc<Client>,
  923    _subscriptions: Vec<client::Subscription>,
  924}
  925
  926#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  927pub enum CollaboratorId {
  928    PeerId(PeerId),
  929    Agent,
  930}
  931
  932impl From<PeerId> for CollaboratorId {
  933    fn from(peer_id: PeerId) -> Self {
  934        CollaboratorId::PeerId(peer_id)
  935    }
  936}
  937
  938impl From<&PeerId> for CollaboratorId {
  939    fn from(peer_id: &PeerId) -> Self {
  940        CollaboratorId::PeerId(*peer_id)
  941    }
  942}
  943
  944#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  945struct Follower {
  946    project_id: Option<u64>,
  947    peer_id: PeerId,
  948}
  949
  950impl AppState {
  951    #[track_caller]
  952    pub fn global(cx: &App) -> Weak<Self> {
  953        cx.global::<GlobalAppState>().0.clone()
  954    }
  955    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  956        cx.try_global::<GlobalAppState>()
  957            .map(|state| state.0.clone())
  958    }
  959    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  960        cx.set_global(GlobalAppState(state));
  961    }
  962
  963    #[cfg(any(test, feature = "test-support"))]
  964    pub fn test(cx: &mut App) -> Arc<Self> {
  965        use node_runtime::NodeRuntime;
  966        use session::Session;
  967        use settings::SettingsStore;
  968
  969        if !cx.has_global::<SettingsStore>() {
  970            let settings_store = SettingsStore::test(cx);
  971            cx.set_global(settings_store);
  972        }
  973
  974        let fs = fs::FakeFs::new(cx.background_executor().clone());
  975        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  976        let clock = Arc::new(clock::FakeSystemClock::new());
  977        let http_client = http_client::FakeHttpClient::with_404_response();
  978        let client = Client::new(clock, http_client, cx);
  979        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  980        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  981        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  982
  983        theme::init(theme::LoadThemes::JustBase, cx);
  984        client::init(&client, cx);
  985
  986        Arc::new(Self {
  987            client,
  988            fs,
  989            languages,
  990            user_store,
  991            workspace_store,
  992            node_runtime: NodeRuntime::unavailable(),
  993            build_window_options: |_, _| Default::default(),
  994            session,
  995        })
  996    }
  997}
  998
  999struct DelayedDebouncedEditAction {
 1000    task: Option<Task<()>>,
 1001    cancel_channel: Option<oneshot::Sender<()>>,
 1002}
 1003
 1004impl DelayedDebouncedEditAction {
 1005    fn new() -> DelayedDebouncedEditAction {
 1006        DelayedDebouncedEditAction {
 1007            task: None,
 1008            cancel_channel: None,
 1009        }
 1010    }
 1011
 1012    fn fire_new<F>(
 1013        &mut self,
 1014        delay: Duration,
 1015        window: &mut Window,
 1016        cx: &mut Context<Workspace>,
 1017        func: F,
 1018    ) where
 1019        F: 'static
 1020            + Send
 1021            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1022    {
 1023        if let Some(channel) = self.cancel_channel.take() {
 1024            _ = channel.send(());
 1025        }
 1026
 1027        let (sender, mut receiver) = oneshot::channel::<()>();
 1028        self.cancel_channel = Some(sender);
 1029
 1030        let previous_task = self.task.take();
 1031        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1032            let mut timer = cx.background_executor().timer(delay).fuse();
 1033            if let Some(previous_task) = previous_task {
 1034                previous_task.await;
 1035            }
 1036
 1037            futures::select_biased! {
 1038                _ = receiver => return,
 1039                    _ = timer => {}
 1040            }
 1041
 1042            if let Some(result) = workspace
 1043                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1044                .log_err()
 1045            {
 1046                result.await.log_err();
 1047            }
 1048        }));
 1049    }
 1050}
 1051
 1052pub enum Event {
 1053    PaneAdded(Entity<Pane>),
 1054    PaneRemoved,
 1055    ItemAdded {
 1056        item: Box<dyn ItemHandle>,
 1057    },
 1058    ActiveItemChanged,
 1059    ItemRemoved {
 1060        item_id: EntityId,
 1061    },
 1062    UserSavedItem {
 1063        pane: WeakEntity<Pane>,
 1064        item: Box<dyn WeakItemHandle>,
 1065        save_intent: SaveIntent,
 1066    },
 1067    ContactRequestedJoin(u64),
 1068    WorkspaceCreated(WeakEntity<Workspace>),
 1069    OpenBundledFile {
 1070        text: Cow<'static, str>,
 1071        title: &'static str,
 1072        language: &'static str,
 1073    },
 1074    ZoomChanged,
 1075    ModalOpened,
 1076}
 1077
 1078#[derive(Debug)]
 1079pub enum OpenVisible {
 1080    All,
 1081    None,
 1082    OnlyFiles,
 1083    OnlyDirectories,
 1084}
 1085
 1086enum WorkspaceLocation {
 1087    // Valid local paths or SSH project to serialize
 1088    Location(SerializedWorkspaceLocation, PathList),
 1089    // No valid location found hence clear session id
 1090    DetachFromSession,
 1091    // No valid location found to serialize
 1092    None,
 1093}
 1094
 1095type PromptForNewPath = Box<
 1096    dyn Fn(
 1097        &mut Workspace,
 1098        DirectoryLister,
 1099        &mut Window,
 1100        &mut Context<Workspace>,
 1101    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1102>;
 1103
 1104type PromptForOpenPath = Box<
 1105    dyn Fn(
 1106        &mut Workspace,
 1107        DirectoryLister,
 1108        &mut Window,
 1109        &mut Context<Workspace>,
 1110    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1111>;
 1112
 1113#[derive(Default)]
 1114struct DispatchingKeystrokes {
 1115    dispatched: HashSet<Vec<Keystroke>>,
 1116    queue: VecDeque<Keystroke>,
 1117    task: Option<Shared<Task<()>>>,
 1118}
 1119
 1120/// Collects everything project-related for a certain window opened.
 1121/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1122///
 1123/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1124/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1125/// that can be used to register a global action to be triggered from any place in the window.
 1126pub struct Workspace {
 1127    weak_self: WeakEntity<Self>,
 1128    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1129    zoomed: Option<AnyWeakView>,
 1130    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1131    zoomed_position: Option<DockPosition>,
 1132    center: PaneGroup,
 1133    left_dock: Entity<Dock>,
 1134    bottom_dock: Entity<Dock>,
 1135    right_dock: Entity<Dock>,
 1136    panes: Vec<Entity<Pane>>,
 1137    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1138    active_pane: Entity<Pane>,
 1139    last_active_center_pane: Option<WeakEntity<Pane>>,
 1140    last_active_view_id: Option<proto::ViewId>,
 1141    status_bar: Entity<StatusBar>,
 1142    modal_layer: Entity<ModalLayer>,
 1143    toast_layer: Entity<ToastLayer>,
 1144    titlebar_item: Option<AnyView>,
 1145    notifications: Notifications,
 1146    suppressed_notifications: HashSet<NotificationId>,
 1147    project: Entity<Project>,
 1148    follower_states: HashMap<CollaboratorId, FollowerState>,
 1149    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1150    window_edited: bool,
 1151    last_window_title: Option<String>,
 1152    dirty_items: HashMap<EntityId, Subscription>,
 1153    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1154    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1155    database_id: Option<WorkspaceId>,
 1156    app_state: Arc<AppState>,
 1157    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1158    _subscriptions: Vec<Subscription>,
 1159    _apply_leader_updates: Task<Result<()>>,
 1160    _observe_current_user: Task<Result<()>>,
 1161    _schedule_serialize_workspace: Option<Task<()>>,
 1162    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1163    pane_history_timestamp: Arc<AtomicUsize>,
 1164    bounds: Bounds<Pixels>,
 1165    pub centered_layout: bool,
 1166    bounds_save_task_queued: Option<Task<()>>,
 1167    on_prompt_for_new_path: Option<PromptForNewPath>,
 1168    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1169    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1170    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1171    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1172    _items_serializer: Task<Result<()>>,
 1173    session_id: Option<String>,
 1174    scheduled_tasks: Vec<Task<()>>,
 1175    last_open_dock_positions: Vec<DockPosition>,
 1176    removing: bool,
 1177}
 1178
 1179impl EventEmitter<Event> for Workspace {}
 1180
 1181#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1182pub struct ViewId {
 1183    pub creator: CollaboratorId,
 1184    pub id: u64,
 1185}
 1186
 1187pub struct FollowerState {
 1188    center_pane: Entity<Pane>,
 1189    dock_pane: Option<Entity<Pane>>,
 1190    active_view_id: Option<ViewId>,
 1191    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1192}
 1193
 1194struct FollowerView {
 1195    view: Box<dyn FollowableItemHandle>,
 1196    location: Option<proto::PanelId>,
 1197}
 1198
 1199impl Workspace {
 1200    pub fn new(
 1201        workspace_id: Option<WorkspaceId>,
 1202        project: Entity<Project>,
 1203        app_state: Arc<AppState>,
 1204        window: &mut Window,
 1205        cx: &mut Context<Self>,
 1206    ) -> Self {
 1207        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1208            match event {
 1209                project::Event::RemoteIdChanged(_) => {
 1210                    this.update_window_title(window, cx);
 1211                }
 1212
 1213                project::Event::CollaboratorLeft(peer_id) => {
 1214                    this.collaborator_left(*peer_id, window, cx);
 1215                }
 1216
 1217                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1218                    this.update_window_title(window, cx);
 1219                    this.serialize_workspace(window, cx);
 1220                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1221                    this.update_history(cx);
 1222                }
 1223
 1224                project::Event::DisconnectedFromHost => {
 1225                    this.update_window_edited(window, cx);
 1226                    let leaders_to_unfollow =
 1227                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1228                    for leader_id in leaders_to_unfollow {
 1229                        this.unfollow(leader_id, window, cx);
 1230                    }
 1231                }
 1232
 1233                project::Event::DisconnectedFromSshRemote => {
 1234                    this.update_window_edited(window, cx);
 1235                }
 1236
 1237                project::Event::Closed => {
 1238                    window.remove_window();
 1239                }
 1240
 1241                project::Event::DeletedEntry(_, entry_id) => {
 1242                    for pane in this.panes.iter() {
 1243                        pane.update(cx, |pane, cx| {
 1244                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1245                        });
 1246                    }
 1247                }
 1248
 1249                project::Event::Toast {
 1250                    notification_id,
 1251                    message,
 1252                } => this.show_notification(
 1253                    NotificationId::named(notification_id.clone()),
 1254                    cx,
 1255                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1256                ),
 1257
 1258                project::Event::HideToast { notification_id } => {
 1259                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1260                }
 1261
 1262                project::Event::LanguageServerPrompt(request) => {
 1263                    struct LanguageServerPrompt;
 1264
 1265                    let mut hasher = DefaultHasher::new();
 1266                    request.lsp_name.as_str().hash(&mut hasher);
 1267                    let id = hasher.finish();
 1268
 1269                    this.show_notification(
 1270                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1271                        cx,
 1272                        |cx| {
 1273                            cx.new(|cx| {
 1274                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1275                            })
 1276                        },
 1277                    );
 1278                }
 1279
 1280                project::Event::AgentLocationChanged => {
 1281                    this.handle_agent_location_changed(window, cx)
 1282                }
 1283
 1284                _ => {}
 1285            }
 1286            cx.notify()
 1287        })
 1288        .detach();
 1289
 1290        cx.subscribe_in(
 1291            &project.read(cx).breakpoint_store(),
 1292            window,
 1293            |workspace, _, event, window, cx| match event {
 1294                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1295                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1296                    workspace.serialize_workspace(window, cx);
 1297                }
 1298                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1299            },
 1300        )
 1301        .detach();
 1302        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1303            cx.subscribe_in(
 1304                &toolchain_store,
 1305                window,
 1306                |workspace, _, event, window, cx| match event {
 1307                    ToolchainStoreEvent::CustomToolchainsModified => {
 1308                        workspace.serialize_workspace(window, cx);
 1309                    }
 1310                    _ => {}
 1311                },
 1312            )
 1313            .detach();
 1314        }
 1315
 1316        cx.on_focus_lost(window, |this, window, cx| {
 1317            let focus_handle = this.focus_handle(cx);
 1318            window.focus(&focus_handle);
 1319        })
 1320        .detach();
 1321
 1322        let weak_handle = cx.entity().downgrade();
 1323        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1324
 1325        let center_pane = cx.new(|cx| {
 1326            let mut center_pane = Pane::new(
 1327                weak_handle.clone(),
 1328                project.clone(),
 1329                pane_history_timestamp.clone(),
 1330                None,
 1331                NewFile.boxed_clone(),
 1332                true,
 1333                window,
 1334                cx,
 1335            );
 1336            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1337            center_pane
 1338        });
 1339        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1340            .detach();
 1341
 1342        window.focus(&center_pane.focus_handle(cx));
 1343
 1344        cx.emit(Event::PaneAdded(center_pane.clone()));
 1345
 1346        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1347        app_state.workspace_store.update(cx, |store, _| {
 1348            store.workspaces.insert(window_handle);
 1349        });
 1350
 1351        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1352        let mut connection_status = app_state.client.status();
 1353        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1354            current_user.next().await;
 1355            connection_status.next().await;
 1356            let mut stream =
 1357                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1358
 1359            while stream.recv().await.is_some() {
 1360                this.update(cx, |_, cx| cx.notify())?;
 1361            }
 1362            anyhow::Ok(())
 1363        });
 1364
 1365        // All leader updates are enqueued and then processed in a single task, so
 1366        // that each asynchronous operation can be run in order.
 1367        let (leader_updates_tx, mut leader_updates_rx) =
 1368            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1369        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1370            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1371                Self::process_leader_update(&this, leader_id, update, cx)
 1372                    .await
 1373                    .log_err();
 1374            }
 1375
 1376            Ok(())
 1377        });
 1378
 1379        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1380        let modal_layer = cx.new(|_| ModalLayer::new());
 1381        let toast_layer = cx.new(|_| ToastLayer::new());
 1382        cx.subscribe(
 1383            &modal_layer,
 1384            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1385                cx.emit(Event::ModalOpened);
 1386            },
 1387        )
 1388        .detach();
 1389
 1390        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1391        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1392        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1393        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1394        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1395        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1396        let status_bar = cx.new(|cx| {
 1397            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1398            status_bar.add_left_item(left_dock_buttons, window, cx);
 1399            status_bar.add_right_item(right_dock_buttons, window, cx);
 1400            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1401            status_bar
 1402        });
 1403
 1404        let session_id = app_state.session.read(cx).id().to_owned();
 1405
 1406        let mut active_call = None;
 1407        if let Some(call) = ActiveCall::try_global(cx) {
 1408            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1409            active_call = Some((call, subscriptions));
 1410        }
 1411
 1412        let (serializable_items_tx, serializable_items_rx) =
 1413            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1414        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1415            Self::serialize_items(&this, serializable_items_rx, cx).await
 1416        });
 1417
 1418        let subscriptions = vec![
 1419            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1420            cx.observe_window_bounds(window, move |this, window, cx| {
 1421                if this.bounds_save_task_queued.is_some() {
 1422                    return;
 1423                }
 1424                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1425                    cx.background_executor()
 1426                        .timer(Duration::from_millis(100))
 1427                        .await;
 1428                    this.update_in(cx, |this, window, cx| {
 1429                        if let Some(display) = window.display(cx)
 1430                            && let Ok(display_uuid) = display.uuid()
 1431                        {
 1432                            let window_bounds = window.inner_window_bounds();
 1433                            if let Some(database_id) = workspace_id {
 1434                                cx.background_executor()
 1435                                    .spawn(DB.set_window_open_status(
 1436                                        database_id,
 1437                                        SerializedWindowBounds(window_bounds),
 1438                                        display_uuid,
 1439                                    ))
 1440                                    .detach_and_log_err(cx);
 1441                            }
 1442                        }
 1443                        this.bounds_save_task_queued.take();
 1444                    })
 1445                    .ok();
 1446                }));
 1447                cx.notify();
 1448            }),
 1449            cx.observe_window_appearance(window, |_, window, cx| {
 1450                let window_appearance = window.appearance();
 1451
 1452                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1453
 1454                GlobalTheme::reload_theme(cx);
 1455                GlobalTheme::reload_icon_theme(cx);
 1456            }),
 1457            cx.on_release(move |this, cx| {
 1458                this.app_state.workspace_store.update(cx, move |store, _| {
 1459                    store.workspaces.remove(&window_handle);
 1460                })
 1461            }),
 1462        ];
 1463
 1464        cx.defer_in(window, |this, window, cx| {
 1465            this.update_window_title(window, cx);
 1466            this.show_initial_notifications(cx);
 1467        });
 1468        Workspace {
 1469            weak_self: weak_handle.clone(),
 1470            zoomed: None,
 1471            zoomed_position: None,
 1472            previous_dock_drag_coordinates: None,
 1473            center: PaneGroup::new(center_pane.clone()),
 1474            panes: vec![center_pane.clone()],
 1475            panes_by_item: Default::default(),
 1476            active_pane: center_pane.clone(),
 1477            last_active_center_pane: Some(center_pane.downgrade()),
 1478            last_active_view_id: None,
 1479            status_bar,
 1480            modal_layer,
 1481            toast_layer,
 1482            titlebar_item: None,
 1483            notifications: Notifications::default(),
 1484            suppressed_notifications: HashSet::default(),
 1485            left_dock,
 1486            bottom_dock,
 1487            right_dock,
 1488            project: project.clone(),
 1489            follower_states: Default::default(),
 1490            last_leaders_by_pane: Default::default(),
 1491            dispatching_keystrokes: Default::default(),
 1492            window_edited: false,
 1493            last_window_title: None,
 1494            dirty_items: Default::default(),
 1495            active_call,
 1496            database_id: workspace_id,
 1497            app_state,
 1498            _observe_current_user,
 1499            _apply_leader_updates,
 1500            _schedule_serialize_workspace: None,
 1501            _schedule_serialize_ssh_paths: None,
 1502            leader_updates_tx,
 1503            _subscriptions: subscriptions,
 1504            pane_history_timestamp,
 1505            workspace_actions: Default::default(),
 1506            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1507            bounds: Default::default(),
 1508            centered_layout: false,
 1509            bounds_save_task_queued: None,
 1510            on_prompt_for_new_path: None,
 1511            on_prompt_for_open_path: None,
 1512            terminal_provider: None,
 1513            debugger_provider: None,
 1514            serializable_items_tx,
 1515            _items_serializer,
 1516            session_id: Some(session_id),
 1517
 1518            scheduled_tasks: Vec::new(),
 1519            last_open_dock_positions: Vec::new(),
 1520            removing: false,
 1521        }
 1522    }
 1523
 1524    pub fn new_local(
 1525        abs_paths: Vec<PathBuf>,
 1526        app_state: Arc<AppState>,
 1527        requesting_window: Option<WindowHandle<Workspace>>,
 1528        env: Option<HashMap<String, String>>,
 1529        cx: &mut App,
 1530    ) -> Task<
 1531        anyhow::Result<(
 1532            WindowHandle<Workspace>,
 1533            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1534        )>,
 1535    > {
 1536        let project_handle = Project::local(
 1537            app_state.client.clone(),
 1538            app_state.node_runtime.clone(),
 1539            app_state.user_store.clone(),
 1540            app_state.languages.clone(),
 1541            app_state.fs.clone(),
 1542            env,
 1543            cx,
 1544        );
 1545
 1546        cx.spawn(async move |cx| {
 1547            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1548            for path in abs_paths.into_iter() {
 1549                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1550                    paths_to_open.push(canonical)
 1551                } else {
 1552                    paths_to_open.push(path)
 1553                }
 1554            }
 1555
 1556            let serialized_workspace =
 1557                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1558
 1559            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1560                paths_to_open = paths.ordered_paths().cloned().collect();
 1561                if !paths.is_lexicographically_ordered() {
 1562                    project_handle
 1563                        .update(cx, |project, cx| {
 1564                            project.set_worktrees_reordered(true, cx);
 1565                        })
 1566                        .log_err();
 1567                }
 1568            }
 1569
 1570            // Get project paths for all of the abs_paths
 1571            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1572                Vec::with_capacity(paths_to_open.len());
 1573
 1574            for path in paths_to_open.into_iter() {
 1575                if let Some((_, project_entry)) = cx
 1576                    .update(|cx| {
 1577                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1578                    })?
 1579                    .await
 1580                    .log_err()
 1581                {
 1582                    project_paths.push((path, Some(project_entry)));
 1583                } else {
 1584                    project_paths.push((path, None));
 1585                }
 1586            }
 1587
 1588            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1589                serialized_workspace.id
 1590            } else {
 1591                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1592            };
 1593
 1594            let toolchains = DB.toolchains(workspace_id).await?;
 1595
 1596            for (toolchain, worktree_id, path) in toolchains {
 1597                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1598                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1599                    continue;
 1600                }
 1601
 1602                project_handle
 1603                    .update(cx, |this, cx| {
 1604                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1605                    })?
 1606                    .await;
 1607            }
 1608            if let Some(workspace) = serialized_workspace.as_ref() {
 1609                project_handle.update(cx, |this, cx| {
 1610                    for (scope, toolchains) in &workspace.user_toolchains {
 1611                        for toolchain in toolchains {
 1612                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1613                        }
 1614                    }
 1615                })?;
 1616            }
 1617
 1618            let window = if let Some(window) = requesting_window {
 1619                let centered_layout = serialized_workspace
 1620                    .as_ref()
 1621                    .map(|w| w.centered_layout)
 1622                    .unwrap_or(false);
 1623
 1624                cx.update_window(window.into(), |_, window, cx| {
 1625                    window.replace_root(cx, |window, cx| {
 1626                        let mut workspace = Workspace::new(
 1627                            Some(workspace_id),
 1628                            project_handle.clone(),
 1629                            app_state.clone(),
 1630                            window,
 1631                            cx,
 1632                        );
 1633
 1634                        workspace.centered_layout = centered_layout;
 1635                        workspace
 1636                    });
 1637                })?;
 1638                window
 1639            } else {
 1640                let window_bounds_override = window_bounds_env_override();
 1641
 1642                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1643                    (Some(WindowBounds::Windowed(bounds)), None)
 1644                } else {
 1645                    let restorable_bounds = serialized_workspace
 1646                        .as_ref()
 1647                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1648                        .or_else(|| {
 1649                            let (display, window_bounds) = DB.last_window().log_err()?;
 1650                            Some((display?, window_bounds?))
 1651                        });
 1652
 1653                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1654                        (Some(serialized_status.0), Some(serialized_display))
 1655                    } else {
 1656                        (None, None)
 1657                    }
 1658                };
 1659
 1660                // Use the serialized workspace to construct the new window
 1661                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1662                options.window_bounds = window_bounds;
 1663                let centered_layout = serialized_workspace
 1664                    .as_ref()
 1665                    .map(|w| w.centered_layout)
 1666                    .unwrap_or(false);
 1667                cx.open_window(options, {
 1668                    let app_state = app_state.clone();
 1669                    let project_handle = project_handle.clone();
 1670                    move |window, cx| {
 1671                        cx.new(|cx| {
 1672                            let mut workspace = Workspace::new(
 1673                                Some(workspace_id),
 1674                                project_handle,
 1675                                app_state,
 1676                                window,
 1677                                cx,
 1678                            );
 1679                            workspace.centered_layout = centered_layout;
 1680                            workspace
 1681                        })
 1682                    }
 1683                })?
 1684            };
 1685
 1686            notify_if_database_failed(window, cx);
 1687            let opened_items = window
 1688                .update(cx, |_workspace, window, cx| {
 1689                    open_items(serialized_workspace, project_paths, window, cx)
 1690                })?
 1691                .await
 1692                .unwrap_or_default();
 1693
 1694            window
 1695                .update(cx, |workspace, window, cx| {
 1696                    window.activate_window();
 1697                    workspace.update_history(cx);
 1698                })
 1699                .log_err();
 1700            Ok((window, opened_items))
 1701        })
 1702    }
 1703
 1704    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1705        self.weak_self.clone()
 1706    }
 1707
 1708    pub fn left_dock(&self) -> &Entity<Dock> {
 1709        &self.left_dock
 1710    }
 1711
 1712    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1713        &self.bottom_dock
 1714    }
 1715
 1716    pub fn set_bottom_dock_layout(
 1717        &mut self,
 1718        layout: BottomDockLayout,
 1719        window: &mut Window,
 1720        cx: &mut Context<Self>,
 1721    ) {
 1722        let fs = self.project().read(cx).fs();
 1723        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1724            content.workspace.bottom_dock_layout = Some(layout);
 1725        });
 1726
 1727        cx.notify();
 1728        self.serialize_workspace(window, cx);
 1729    }
 1730
 1731    pub fn right_dock(&self) -> &Entity<Dock> {
 1732        &self.right_dock
 1733    }
 1734
 1735    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1736        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1737    }
 1738
 1739    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1740        match position {
 1741            DockPosition::Left => &self.left_dock,
 1742            DockPosition::Bottom => &self.bottom_dock,
 1743            DockPosition::Right => &self.right_dock,
 1744        }
 1745    }
 1746
 1747    pub fn is_edited(&self) -> bool {
 1748        self.window_edited
 1749    }
 1750
 1751    pub fn add_panel<T: Panel>(
 1752        &mut self,
 1753        panel: Entity<T>,
 1754        window: &mut Window,
 1755        cx: &mut Context<Self>,
 1756    ) {
 1757        let focus_handle = panel.panel_focus_handle(cx);
 1758        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1759            .detach();
 1760
 1761        let dock_position = panel.position(window, cx);
 1762        let dock = self.dock_at_position(dock_position);
 1763
 1764        dock.update(cx, |dock, cx| {
 1765            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1766        });
 1767    }
 1768
 1769    pub fn remove_panel<T: Panel>(
 1770        &mut self,
 1771        panel: &Entity<T>,
 1772        window: &mut Window,
 1773        cx: &mut Context<Self>,
 1774    ) {
 1775        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1776            dock.update(cx, |dock, cx| {
 1777                dock.remove_panel(panel, window, cx);
 1778            })
 1779        }
 1780    }
 1781
 1782    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1783        &self.status_bar
 1784    }
 1785
 1786    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1787        StatusBarSettings::get_global(cx).show
 1788    }
 1789
 1790    pub fn app_state(&self) -> &Arc<AppState> {
 1791        &self.app_state
 1792    }
 1793
 1794    pub fn user_store(&self) -> &Entity<UserStore> {
 1795        &self.app_state.user_store
 1796    }
 1797
 1798    pub fn project(&self) -> &Entity<Project> {
 1799        &self.project
 1800    }
 1801
 1802    pub fn path_style(&self, cx: &App) -> PathStyle {
 1803        self.project.read(cx).path_style(cx)
 1804    }
 1805
 1806    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1807        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1808
 1809        for pane_handle in &self.panes {
 1810            let pane = pane_handle.read(cx);
 1811
 1812            for entry in pane.activation_history() {
 1813                history.insert(
 1814                    entry.entity_id,
 1815                    history
 1816                        .get(&entry.entity_id)
 1817                        .cloned()
 1818                        .unwrap_or(0)
 1819                        .max(entry.timestamp),
 1820                );
 1821            }
 1822        }
 1823
 1824        history
 1825    }
 1826
 1827    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1828        let mut recent_item: Option<Entity<T>> = None;
 1829        let mut recent_timestamp = 0;
 1830        for pane_handle in &self.panes {
 1831            let pane = pane_handle.read(cx);
 1832            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1833                pane.items().map(|item| (item.item_id(), item)).collect();
 1834            for entry in pane.activation_history() {
 1835                if entry.timestamp > recent_timestamp
 1836                    && let Some(&item) = item_map.get(&entry.entity_id)
 1837                    && let Some(typed_item) = item.act_as::<T>(cx)
 1838                {
 1839                    recent_timestamp = entry.timestamp;
 1840                    recent_item = Some(typed_item);
 1841                }
 1842            }
 1843        }
 1844        recent_item
 1845    }
 1846
 1847    pub fn recent_navigation_history_iter(
 1848        &self,
 1849        cx: &App,
 1850    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1851        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1852        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1853
 1854        for pane in &self.panes {
 1855            let pane = pane.read(cx);
 1856
 1857            pane.nav_history()
 1858                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1859                    if let Some(fs_path) = &fs_path {
 1860                        abs_paths_opened
 1861                            .entry(fs_path.clone())
 1862                            .or_default()
 1863                            .insert(project_path.clone());
 1864                    }
 1865                    let timestamp = entry.timestamp;
 1866                    match history.entry(project_path) {
 1867                        hash_map::Entry::Occupied(mut entry) => {
 1868                            let (_, old_timestamp) = entry.get();
 1869                            if &timestamp > old_timestamp {
 1870                                entry.insert((fs_path, timestamp));
 1871                            }
 1872                        }
 1873                        hash_map::Entry::Vacant(entry) => {
 1874                            entry.insert((fs_path, timestamp));
 1875                        }
 1876                    }
 1877                });
 1878
 1879            if let Some(item) = pane.active_item()
 1880                && let Some(project_path) = item.project_path(cx)
 1881            {
 1882                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1883
 1884                if let Some(fs_path) = &fs_path {
 1885                    abs_paths_opened
 1886                        .entry(fs_path.clone())
 1887                        .or_default()
 1888                        .insert(project_path.clone());
 1889                }
 1890
 1891                history.insert(project_path, (fs_path, std::usize::MAX));
 1892            }
 1893        }
 1894
 1895        history
 1896            .into_iter()
 1897            .sorted_by_key(|(_, (_, order))| *order)
 1898            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1899            .rev()
 1900            .filter(move |(history_path, abs_path)| {
 1901                let latest_project_path_opened = abs_path
 1902                    .as_ref()
 1903                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1904                    .and_then(|project_paths| {
 1905                        project_paths
 1906                            .iter()
 1907                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1908                    });
 1909
 1910                latest_project_path_opened.is_none_or(|path| path == history_path)
 1911            })
 1912    }
 1913
 1914    pub fn recent_navigation_history(
 1915        &self,
 1916        limit: Option<usize>,
 1917        cx: &App,
 1918    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1919        self.recent_navigation_history_iter(cx)
 1920            .take(limit.unwrap_or(usize::MAX))
 1921            .collect()
 1922    }
 1923
 1924    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 1925        for pane in &self.panes {
 1926            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 1927        }
 1928    }
 1929
 1930    fn navigate_history(
 1931        &mut self,
 1932        pane: WeakEntity<Pane>,
 1933        mode: NavigationMode,
 1934        window: &mut Window,
 1935        cx: &mut Context<Workspace>,
 1936    ) -> Task<Result<()>> {
 1937        let to_load = if let Some(pane) = pane.upgrade() {
 1938            pane.update(cx, |pane, cx| {
 1939                window.focus(&pane.focus_handle(cx));
 1940                loop {
 1941                    // Retrieve the weak item handle from the history.
 1942                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1943
 1944                    // If the item is still present in this pane, then activate it.
 1945                    if let Some(index) = entry
 1946                        .item
 1947                        .upgrade()
 1948                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1949                    {
 1950                        let prev_active_item_index = pane.active_item_index();
 1951                        pane.nav_history_mut().set_mode(mode);
 1952                        pane.activate_item(index, true, true, window, cx);
 1953                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1954
 1955                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1956                        if let Some(data) = entry.data {
 1957                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1958                        }
 1959
 1960                        if navigated {
 1961                            break None;
 1962                        }
 1963                    } else {
 1964                        // If the item is no longer present in this pane, then retrieve its
 1965                        // path info in order to reopen it.
 1966                        break pane
 1967                            .nav_history()
 1968                            .path_for_item(entry.item.id())
 1969                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1970                    }
 1971                }
 1972            })
 1973        } else {
 1974            None
 1975        };
 1976
 1977        if let Some((project_path, abs_path, entry)) = to_load {
 1978            // If the item was no longer present, then load it again from its previous path, first try the local path
 1979            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1980
 1981            cx.spawn_in(window, async move  |workspace, cx| {
 1982                let open_by_project_path = open_by_project_path.await;
 1983                let mut navigated = false;
 1984                match open_by_project_path
 1985                    .with_context(|| format!("Navigating to {project_path:?}"))
 1986                {
 1987                    Ok((project_entry_id, build_item)) => {
 1988                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1989                            pane.nav_history_mut().set_mode(mode);
 1990                            pane.active_item().map(|p| p.item_id())
 1991                        })?;
 1992
 1993                        pane.update_in(cx, |pane, window, cx| {
 1994                            let item = pane.open_item(
 1995                                project_entry_id,
 1996                                project_path,
 1997                                true,
 1998                                entry.is_preview,
 1999                                true,
 2000                                None,
 2001                                window, cx,
 2002                                build_item,
 2003                            );
 2004                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2005                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2006                            if let Some(data) = entry.data {
 2007                                navigated |= item.navigate(data, window, cx);
 2008                            }
 2009                        })?;
 2010                    }
 2011                    Err(open_by_project_path_e) => {
 2012                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2013                        // and its worktree is now dropped
 2014                        if let Some(abs_path) = abs_path {
 2015                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2016                                pane.nav_history_mut().set_mode(mode);
 2017                                pane.active_item().map(|p| p.item_id())
 2018                            })?;
 2019                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2020                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2021                            })?;
 2022                            match open_by_abs_path
 2023                                .await
 2024                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2025                            {
 2026                                Ok(item) => {
 2027                                    pane.update_in(cx, |pane, window, cx| {
 2028                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2029                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2030                                        if let Some(data) = entry.data {
 2031                                            navigated |= item.navigate(data, window, cx);
 2032                                        }
 2033                                    })?;
 2034                                }
 2035                                Err(open_by_abs_path_e) => {
 2036                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2037                                }
 2038                            }
 2039                        }
 2040                    }
 2041                }
 2042
 2043                if !navigated {
 2044                    workspace
 2045                        .update_in(cx, |workspace, window, cx| {
 2046                            Self::navigate_history(workspace, pane, mode, window, cx)
 2047                        })?
 2048                        .await?;
 2049                }
 2050
 2051                Ok(())
 2052            })
 2053        } else {
 2054            Task::ready(Ok(()))
 2055        }
 2056    }
 2057
 2058    pub fn go_back(
 2059        &mut self,
 2060        pane: WeakEntity<Pane>,
 2061        window: &mut Window,
 2062        cx: &mut Context<Workspace>,
 2063    ) -> Task<Result<()>> {
 2064        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2065    }
 2066
 2067    pub fn go_forward(
 2068        &mut self,
 2069        pane: WeakEntity<Pane>,
 2070        window: &mut Window,
 2071        cx: &mut Context<Workspace>,
 2072    ) -> Task<Result<()>> {
 2073        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2074    }
 2075
 2076    pub fn reopen_closed_item(
 2077        &mut self,
 2078        window: &mut Window,
 2079        cx: &mut Context<Workspace>,
 2080    ) -> Task<Result<()>> {
 2081        self.navigate_history(
 2082            self.active_pane().downgrade(),
 2083            NavigationMode::ReopeningClosedItem,
 2084            window,
 2085            cx,
 2086        )
 2087    }
 2088
 2089    pub fn client(&self) -> &Arc<Client> {
 2090        &self.app_state.client
 2091    }
 2092
 2093    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2094        self.titlebar_item = Some(item);
 2095        cx.notify();
 2096    }
 2097
 2098    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2099        self.on_prompt_for_new_path = Some(prompt)
 2100    }
 2101
 2102    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2103        self.on_prompt_for_open_path = Some(prompt)
 2104    }
 2105
 2106    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2107        self.terminal_provider = Some(Box::new(provider));
 2108    }
 2109
 2110    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2111        self.debugger_provider = Some(Arc::new(provider));
 2112    }
 2113
 2114    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2115        self.debugger_provider.clone()
 2116    }
 2117
 2118    pub fn prompt_for_open_path(
 2119        &mut self,
 2120        path_prompt_options: PathPromptOptions,
 2121        lister: DirectoryLister,
 2122        window: &mut Window,
 2123        cx: &mut Context<Self>,
 2124    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2125        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2126            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2127            let rx = prompt(self, lister, window, cx);
 2128            self.on_prompt_for_open_path = Some(prompt);
 2129            rx
 2130        } else {
 2131            let (tx, rx) = oneshot::channel();
 2132            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2133
 2134            cx.spawn_in(window, async move |workspace, cx| {
 2135                let Ok(result) = abs_path.await else {
 2136                    return Ok(());
 2137                };
 2138
 2139                match result {
 2140                    Ok(result) => {
 2141                        tx.send(result).ok();
 2142                    }
 2143                    Err(err) => {
 2144                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2145                            workspace.show_portal_error(err.to_string(), cx);
 2146                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2147                            let rx = prompt(workspace, lister, window, cx);
 2148                            workspace.on_prompt_for_open_path = Some(prompt);
 2149                            rx
 2150                        })?;
 2151                        if let Ok(path) = rx.await {
 2152                            tx.send(path).ok();
 2153                        }
 2154                    }
 2155                };
 2156                anyhow::Ok(())
 2157            })
 2158            .detach();
 2159
 2160            rx
 2161        }
 2162    }
 2163
 2164    pub fn prompt_for_new_path(
 2165        &mut self,
 2166        lister: DirectoryLister,
 2167        suggested_name: Option<String>,
 2168        window: &mut Window,
 2169        cx: &mut Context<Self>,
 2170    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2171        if self.project.read(cx).is_via_collab()
 2172            || self.project.read(cx).is_via_remote_server()
 2173            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2174        {
 2175            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2176            let rx = prompt(self, lister, window, cx);
 2177            self.on_prompt_for_new_path = Some(prompt);
 2178            return rx;
 2179        }
 2180
 2181        let (tx, rx) = oneshot::channel();
 2182        cx.spawn_in(window, async move |workspace, cx| {
 2183            let abs_path = workspace.update(cx, |workspace, cx| {
 2184                let relative_to = workspace
 2185                    .most_recent_active_path(cx)
 2186                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2187                    .or_else(|| {
 2188                        let project = workspace.project.read(cx);
 2189                        project.visible_worktrees(cx).find_map(|worktree| {
 2190                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2191                        })
 2192                    })
 2193                    .or_else(std::env::home_dir)
 2194                    .unwrap_or_else(|| PathBuf::from(""));
 2195                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2196            })?;
 2197            let abs_path = match abs_path.await? {
 2198                Ok(path) => path,
 2199                Err(err) => {
 2200                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2201                        workspace.show_portal_error(err.to_string(), cx);
 2202
 2203                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2204                        let rx = prompt(workspace, lister, window, cx);
 2205                        workspace.on_prompt_for_new_path = Some(prompt);
 2206                        rx
 2207                    })?;
 2208                    if let Ok(path) = rx.await {
 2209                        tx.send(path).ok();
 2210                    }
 2211                    return anyhow::Ok(());
 2212                }
 2213            };
 2214
 2215            tx.send(abs_path.map(|path| vec![path])).ok();
 2216            anyhow::Ok(())
 2217        })
 2218        .detach();
 2219
 2220        rx
 2221    }
 2222
 2223    pub fn titlebar_item(&self) -> Option<AnyView> {
 2224        self.titlebar_item.clone()
 2225    }
 2226
 2227    /// Call the given callback with a workspace whose project is local.
 2228    ///
 2229    /// If the given workspace has a local project, then it will be passed
 2230    /// to the callback. Otherwise, a new empty window will be created.
 2231    pub fn with_local_workspace<T, F>(
 2232        &mut self,
 2233        window: &mut Window,
 2234        cx: &mut Context<Self>,
 2235        callback: F,
 2236    ) -> Task<Result<T>>
 2237    where
 2238        T: 'static,
 2239        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2240    {
 2241        if self.project.read(cx).is_local() {
 2242            Task::ready(Ok(callback(self, window, cx)))
 2243        } else {
 2244            let env = self.project.read(cx).cli_environment(cx);
 2245            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2246            cx.spawn_in(window, async move |_vh, cx| {
 2247                let (workspace, _) = task.await?;
 2248                workspace.update(cx, callback)
 2249            })
 2250        }
 2251    }
 2252
 2253    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2254        self.project.read(cx).worktrees(cx)
 2255    }
 2256
 2257    pub fn visible_worktrees<'a>(
 2258        &self,
 2259        cx: &'a App,
 2260    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2261        self.project.read(cx).visible_worktrees(cx)
 2262    }
 2263
 2264    #[cfg(any(test, feature = "test-support"))]
 2265    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2266        let futures = self
 2267            .worktrees(cx)
 2268            .filter_map(|worktree| worktree.read(cx).as_local())
 2269            .map(|worktree| worktree.scan_complete())
 2270            .collect::<Vec<_>>();
 2271        async move {
 2272            for future in futures {
 2273                future.await;
 2274            }
 2275        }
 2276    }
 2277
 2278    pub fn close_global(cx: &mut App) {
 2279        cx.defer(|cx| {
 2280            cx.windows().iter().find(|window| {
 2281                window
 2282                    .update(cx, |_, window, _| {
 2283                        if window.is_window_active() {
 2284                            //This can only get called when the window's project connection has been lost
 2285                            //so we don't need to prompt the user for anything and instead just close the window
 2286                            window.remove_window();
 2287                            true
 2288                        } else {
 2289                            false
 2290                        }
 2291                    })
 2292                    .unwrap_or(false)
 2293            });
 2294        });
 2295    }
 2296
 2297    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2298        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2299        cx.spawn_in(window, async move |_, cx| {
 2300            if prepare.await? {
 2301                cx.update(|window, _cx| window.remove_window())?;
 2302            }
 2303            anyhow::Ok(())
 2304        })
 2305        .detach_and_log_err(cx)
 2306    }
 2307
 2308    pub fn move_focused_panel_to_next_position(
 2309        &mut self,
 2310        _: &MoveFocusedPanelToNextPosition,
 2311        window: &mut Window,
 2312        cx: &mut Context<Self>,
 2313    ) {
 2314        let docks = self.all_docks();
 2315        let active_dock = docks
 2316            .into_iter()
 2317            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2318
 2319        if let Some(dock) = active_dock {
 2320            dock.update(cx, |dock, cx| {
 2321                let active_panel = dock
 2322                    .active_panel()
 2323                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2324
 2325                if let Some(panel) = active_panel {
 2326                    panel.move_to_next_position(window, cx);
 2327                }
 2328            })
 2329        }
 2330    }
 2331
 2332    pub fn prepare_to_close(
 2333        &mut self,
 2334        close_intent: CloseIntent,
 2335        window: &mut Window,
 2336        cx: &mut Context<Self>,
 2337    ) -> Task<Result<bool>> {
 2338        let active_call = self.active_call().cloned();
 2339
 2340        cx.spawn_in(window, async move |this, cx| {
 2341            this.update(cx, |this, _| {
 2342                if close_intent == CloseIntent::CloseWindow {
 2343                    this.removing = true;
 2344                }
 2345            })?;
 2346
 2347            let workspace_count = cx.update(|_window, cx| {
 2348                cx.windows()
 2349                    .iter()
 2350                    .filter(|window| window.downcast::<Workspace>().is_some())
 2351                    .count()
 2352            })?;
 2353
 2354            #[cfg(target_os = "macos")]
 2355            let save_last_workspace = false;
 2356
 2357            // On Linux and Windows, closing the last window should restore the last workspace.
 2358            #[cfg(not(target_os = "macos"))]
 2359            let save_last_workspace = {
 2360                let remaining_workspaces = cx.update(|_window, cx| {
 2361                    cx.windows()
 2362                        .iter()
 2363                        .filter_map(|window| window.downcast::<Workspace>())
 2364                        .filter_map(|workspace| {
 2365                            workspace
 2366                                .update(cx, |workspace, _, _| workspace.removing)
 2367                                .ok()
 2368                        })
 2369                        .filter(|removing| !removing)
 2370                        .count()
 2371                })?;
 2372
 2373                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2374            };
 2375
 2376            if let Some(active_call) = active_call
 2377                && workspace_count == 1
 2378                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2379            {
 2380                if close_intent == CloseIntent::CloseWindow {
 2381                    let answer = cx.update(|window, cx| {
 2382                        window.prompt(
 2383                            PromptLevel::Warning,
 2384                            "Do you want to leave the current call?",
 2385                            None,
 2386                            &["Close window and hang up", "Cancel"],
 2387                            cx,
 2388                        )
 2389                    })?;
 2390
 2391                    if answer.await.log_err() == Some(1) {
 2392                        return anyhow::Ok(false);
 2393                    } else {
 2394                        active_call
 2395                            .update(cx, |call, cx| call.hang_up(cx))?
 2396                            .await
 2397                            .log_err();
 2398                    }
 2399                }
 2400                if close_intent == CloseIntent::ReplaceWindow {
 2401                    _ = active_call.update(cx, |this, cx| {
 2402                        let workspace = cx
 2403                            .windows()
 2404                            .iter()
 2405                            .filter_map(|window| window.downcast::<Workspace>())
 2406                            .next()
 2407                            .unwrap();
 2408                        let project = workspace.read(cx)?.project.clone();
 2409                        if project.read(cx).is_shared() {
 2410                            this.unshare_project(project, cx)?;
 2411                        }
 2412                        Ok::<_, anyhow::Error>(())
 2413                    })?;
 2414                }
 2415            }
 2416
 2417            let save_result = this
 2418                .update_in(cx, |this, window, cx| {
 2419                    this.save_all_internal(SaveIntent::Close, window, cx)
 2420                })?
 2421                .await;
 2422
 2423            // If we're not quitting, but closing, we remove the workspace from
 2424            // the current session.
 2425            if close_intent != CloseIntent::Quit
 2426                && !save_last_workspace
 2427                && save_result.as_ref().is_ok_and(|&res| res)
 2428            {
 2429                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2430                    .await;
 2431            }
 2432
 2433            save_result
 2434        })
 2435    }
 2436
 2437    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2438        self.save_all_internal(
 2439            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2440            window,
 2441            cx,
 2442        )
 2443        .detach_and_log_err(cx);
 2444    }
 2445
 2446    fn send_keystrokes(
 2447        &mut self,
 2448        action: &SendKeystrokes,
 2449        window: &mut Window,
 2450        cx: &mut Context<Self>,
 2451    ) {
 2452        let keystrokes: Vec<Keystroke> = action
 2453            .0
 2454            .split(' ')
 2455            .flat_map(|k| Keystroke::parse(k).log_err())
 2456            .collect();
 2457        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2458    }
 2459
 2460    pub fn send_keystrokes_impl(
 2461        &mut self,
 2462        keystrokes: Vec<Keystroke>,
 2463        window: &mut Window,
 2464        cx: &mut Context<Self>,
 2465    ) -> Shared<Task<()>> {
 2466        let mut state = self.dispatching_keystrokes.borrow_mut();
 2467        if !state.dispatched.insert(keystrokes.clone()) {
 2468            cx.propagate();
 2469            return state.task.clone().unwrap();
 2470        }
 2471
 2472        state.queue.extend(keystrokes);
 2473
 2474        let keystrokes = self.dispatching_keystrokes.clone();
 2475        if state.task.is_none() {
 2476            state.task = Some(
 2477                window
 2478                    .spawn(cx, async move |cx| {
 2479                        // limit to 100 keystrokes to avoid infinite recursion.
 2480                        for _ in 0..100 {
 2481                            let mut state = keystrokes.borrow_mut();
 2482                            let Some(keystroke) = state.queue.pop_front() else {
 2483                                state.dispatched.clear();
 2484                                state.task.take();
 2485                                return;
 2486                            };
 2487                            drop(state);
 2488                            cx.update(|window, cx| {
 2489                                let focused = window.focused(cx);
 2490                                window.dispatch_keystroke(keystroke.clone(), cx);
 2491                                if window.focused(cx) != focused {
 2492                                    // dispatch_keystroke may cause the focus to change.
 2493                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2494                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2495                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2496                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2497                                    // )
 2498                                    window.draw(cx).clear();
 2499                                }
 2500                            })
 2501                            .ok();
 2502                        }
 2503
 2504                        *keystrokes.borrow_mut() = Default::default();
 2505                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2506                    })
 2507                    .shared(),
 2508            );
 2509        }
 2510        state.task.clone().unwrap()
 2511    }
 2512
 2513    fn save_all_internal(
 2514        &mut self,
 2515        mut save_intent: SaveIntent,
 2516        window: &mut Window,
 2517        cx: &mut Context<Self>,
 2518    ) -> Task<Result<bool>> {
 2519        if self.project.read(cx).is_disconnected(cx) {
 2520            return Task::ready(Ok(true));
 2521        }
 2522        let dirty_items = self
 2523            .panes
 2524            .iter()
 2525            .flat_map(|pane| {
 2526                pane.read(cx).items().filter_map(|item| {
 2527                    if item.is_dirty(cx) {
 2528                        item.tab_content_text(0, cx);
 2529                        Some((pane.downgrade(), item.boxed_clone()))
 2530                    } else {
 2531                        None
 2532                    }
 2533                })
 2534            })
 2535            .collect::<Vec<_>>();
 2536
 2537        let project = self.project.clone();
 2538        cx.spawn_in(window, async move |workspace, cx| {
 2539            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2540                let (serialize_tasks, remaining_dirty_items) =
 2541                    workspace.update_in(cx, |workspace, window, cx| {
 2542                        let mut remaining_dirty_items = Vec::new();
 2543                        let mut serialize_tasks = Vec::new();
 2544                        for (pane, item) in dirty_items {
 2545                            if let Some(task) = item
 2546                                .to_serializable_item_handle(cx)
 2547                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2548                            {
 2549                                serialize_tasks.push(task);
 2550                            } else {
 2551                                remaining_dirty_items.push((pane, item));
 2552                            }
 2553                        }
 2554                        (serialize_tasks, remaining_dirty_items)
 2555                    })?;
 2556
 2557                futures::future::try_join_all(serialize_tasks).await?;
 2558
 2559                if remaining_dirty_items.len() > 1 {
 2560                    let answer = workspace.update_in(cx, |_, window, cx| {
 2561                        let detail = Pane::file_names_for_prompt(
 2562                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2563                            cx,
 2564                        );
 2565                        window.prompt(
 2566                            PromptLevel::Warning,
 2567                            "Do you want to save all changes in the following files?",
 2568                            Some(&detail),
 2569                            &["Save all", "Discard all", "Cancel"],
 2570                            cx,
 2571                        )
 2572                    })?;
 2573                    match answer.await.log_err() {
 2574                        Some(0) => save_intent = SaveIntent::SaveAll,
 2575                        Some(1) => save_intent = SaveIntent::Skip,
 2576                        Some(2) => return Ok(false),
 2577                        _ => {}
 2578                    }
 2579                }
 2580
 2581                remaining_dirty_items
 2582            } else {
 2583                dirty_items
 2584            };
 2585
 2586            for (pane, item) in dirty_items {
 2587                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2588                    (
 2589                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2590                        item.project_entry_ids(cx),
 2591                    )
 2592                })?;
 2593                if (singleton || !project_entry_ids.is_empty())
 2594                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2595                {
 2596                    return Ok(false);
 2597                }
 2598            }
 2599            Ok(true)
 2600        })
 2601    }
 2602
 2603    pub fn open_workspace_for_paths(
 2604        &mut self,
 2605        replace_current_window: bool,
 2606        paths: Vec<PathBuf>,
 2607        window: &mut Window,
 2608        cx: &mut Context<Self>,
 2609    ) -> Task<Result<()>> {
 2610        let window_handle = window.window_handle().downcast::<Self>();
 2611        let is_remote = self.project.read(cx).is_via_collab();
 2612        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2613        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2614
 2615        let window_to_replace = if replace_current_window {
 2616            window_handle
 2617        } else if is_remote || has_worktree || has_dirty_items {
 2618            None
 2619        } else {
 2620            window_handle
 2621        };
 2622        let app_state = self.app_state.clone();
 2623
 2624        cx.spawn(async move |_, cx| {
 2625            cx.update(|cx| {
 2626                open_paths(
 2627                    &paths,
 2628                    app_state,
 2629                    OpenOptions {
 2630                        replace_window: window_to_replace,
 2631                        ..Default::default()
 2632                    },
 2633                    cx,
 2634                )
 2635            })?
 2636            .await?;
 2637            Ok(())
 2638        })
 2639    }
 2640
 2641    #[allow(clippy::type_complexity)]
 2642    pub fn open_paths(
 2643        &mut self,
 2644        mut abs_paths: Vec<PathBuf>,
 2645        options: OpenOptions,
 2646        pane: Option<WeakEntity<Pane>>,
 2647        window: &mut Window,
 2648        cx: &mut Context<Self>,
 2649    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2650        let fs = self.app_state.fs.clone();
 2651
 2652        // Sort the paths to ensure we add worktrees for parents before their children.
 2653        abs_paths.sort_unstable();
 2654        cx.spawn_in(window, async move |this, cx| {
 2655            let mut tasks = Vec::with_capacity(abs_paths.len());
 2656
 2657            for abs_path in &abs_paths {
 2658                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2659                    OpenVisible::All => Some(true),
 2660                    OpenVisible::None => Some(false),
 2661                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2662                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2663                        Some(None) => Some(true),
 2664                        None => None,
 2665                    },
 2666                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2667                        Some(Some(metadata)) => Some(metadata.is_dir),
 2668                        Some(None) => Some(false),
 2669                        None => None,
 2670                    },
 2671                };
 2672                let project_path = match visible {
 2673                    Some(visible) => match this
 2674                        .update(cx, |this, cx| {
 2675                            Workspace::project_path_for_path(
 2676                                this.project.clone(),
 2677                                abs_path,
 2678                                visible,
 2679                                cx,
 2680                            )
 2681                        })
 2682                        .log_err()
 2683                    {
 2684                        Some(project_path) => project_path.await.log_err(),
 2685                        None => None,
 2686                    },
 2687                    None => None,
 2688                };
 2689
 2690                let this = this.clone();
 2691                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2692                let fs = fs.clone();
 2693                let pane = pane.clone();
 2694                let task = cx.spawn(async move |cx| {
 2695                    let (worktree, project_path) = project_path?;
 2696                    if fs.is_dir(&abs_path).await {
 2697                        this.update(cx, |workspace, cx| {
 2698                            let worktree = worktree.read(cx);
 2699                            let worktree_abs_path = worktree.abs_path();
 2700                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2701                                worktree.root_entry()
 2702                            } else {
 2703                                abs_path
 2704                                    .strip_prefix(worktree_abs_path.as_ref())
 2705                                    .ok()
 2706                                    .and_then(|relative_path| {
 2707                                        let relative_path =
 2708                                            RelPath::new(relative_path, PathStyle::local())
 2709                                                .log_err()?;
 2710                                        worktree.entry_for_path(&relative_path)
 2711                                    })
 2712                            }
 2713                            .map(|entry| entry.id);
 2714                            if let Some(entry_id) = entry_id {
 2715                                workspace.project.update(cx, |_, cx| {
 2716                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2717                                })
 2718                            }
 2719                        })
 2720                        .ok()?;
 2721                        None
 2722                    } else {
 2723                        Some(
 2724                            this.update_in(cx, |this, window, cx| {
 2725                                this.open_path(
 2726                                    project_path,
 2727                                    pane,
 2728                                    options.focus.unwrap_or(true),
 2729                                    window,
 2730                                    cx,
 2731                                )
 2732                            })
 2733                            .ok()?
 2734                            .await,
 2735                        )
 2736                    }
 2737                });
 2738                tasks.push(task);
 2739            }
 2740
 2741            futures::future::join_all(tasks).await
 2742        })
 2743    }
 2744
 2745    pub fn open_resolved_path(
 2746        &mut self,
 2747        path: ResolvedPath,
 2748        window: &mut Window,
 2749        cx: &mut Context<Self>,
 2750    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2751        match path {
 2752            ResolvedPath::ProjectPath { project_path, .. } => {
 2753                self.open_path(project_path, None, true, window, cx)
 2754            }
 2755            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2756                PathBuf::from(path),
 2757                OpenOptions {
 2758                    visible: Some(OpenVisible::None),
 2759                    ..Default::default()
 2760                },
 2761                window,
 2762                cx,
 2763            ),
 2764        }
 2765    }
 2766
 2767    pub fn absolute_path_of_worktree(
 2768        &self,
 2769        worktree_id: WorktreeId,
 2770        cx: &mut Context<Self>,
 2771    ) -> Option<PathBuf> {
 2772        self.project
 2773            .read(cx)
 2774            .worktree_for_id(worktree_id, cx)
 2775            // TODO: use `abs_path` or `root_dir`
 2776            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2777    }
 2778
 2779    fn add_folder_to_project(
 2780        &mut self,
 2781        _: &AddFolderToProject,
 2782        window: &mut Window,
 2783        cx: &mut Context<Self>,
 2784    ) {
 2785        let project = self.project.read(cx);
 2786        if project.is_via_collab() {
 2787            self.show_error(
 2788                &anyhow!("You cannot add folders to someone else's project"),
 2789                cx,
 2790            );
 2791            return;
 2792        }
 2793        let paths = self.prompt_for_open_path(
 2794            PathPromptOptions {
 2795                files: false,
 2796                directories: true,
 2797                multiple: true,
 2798                prompt: None,
 2799            },
 2800            DirectoryLister::Project(self.project.clone()),
 2801            window,
 2802            cx,
 2803        );
 2804        cx.spawn_in(window, async move |this, cx| {
 2805            if let Some(paths) = paths.await.log_err().flatten() {
 2806                let results = this
 2807                    .update_in(cx, |this, window, cx| {
 2808                        this.open_paths(
 2809                            paths,
 2810                            OpenOptions {
 2811                                visible: Some(OpenVisible::All),
 2812                                ..Default::default()
 2813                            },
 2814                            None,
 2815                            window,
 2816                            cx,
 2817                        )
 2818                    })?
 2819                    .await;
 2820                for result in results.into_iter().flatten() {
 2821                    result.log_err();
 2822                }
 2823            }
 2824            anyhow::Ok(())
 2825        })
 2826        .detach_and_log_err(cx);
 2827    }
 2828
 2829    pub fn project_path_for_path(
 2830        project: Entity<Project>,
 2831        abs_path: &Path,
 2832        visible: bool,
 2833        cx: &mut App,
 2834    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2835        let entry = project.update(cx, |project, cx| {
 2836            project.find_or_create_worktree(abs_path, visible, cx)
 2837        });
 2838        cx.spawn(async move |cx| {
 2839            let (worktree, path) = entry.await?;
 2840            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2841            Ok((
 2842                worktree,
 2843                ProjectPath {
 2844                    worktree_id,
 2845                    path: path,
 2846                },
 2847            ))
 2848        })
 2849    }
 2850
 2851    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2852        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2853    }
 2854
 2855    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2856        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2857    }
 2858
 2859    pub fn items_of_type<'a, T: Item>(
 2860        &'a self,
 2861        cx: &'a App,
 2862    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2863        self.panes
 2864            .iter()
 2865            .flat_map(|pane| pane.read(cx).items_of_type())
 2866    }
 2867
 2868    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2869        self.active_pane().read(cx).active_item()
 2870    }
 2871
 2872    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2873        let item = self.active_item(cx)?;
 2874        item.to_any_view().downcast::<I>().ok()
 2875    }
 2876
 2877    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2878        self.active_item(cx).and_then(|item| item.project_path(cx))
 2879    }
 2880
 2881    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2882        self.recent_navigation_history_iter(cx)
 2883            .filter_map(|(path, abs_path)| {
 2884                let worktree = self
 2885                    .project
 2886                    .read(cx)
 2887                    .worktree_for_id(path.worktree_id, cx)?;
 2888                if worktree.read(cx).is_visible() {
 2889                    abs_path
 2890                } else {
 2891                    None
 2892                }
 2893            })
 2894            .next()
 2895    }
 2896
 2897    pub fn save_active_item(
 2898        &mut self,
 2899        save_intent: SaveIntent,
 2900        window: &mut Window,
 2901        cx: &mut App,
 2902    ) -> Task<Result<()>> {
 2903        let project = self.project.clone();
 2904        let pane = self.active_pane();
 2905        let item = pane.read(cx).active_item();
 2906        let pane = pane.downgrade();
 2907
 2908        window.spawn(cx, async move |cx| {
 2909            if let Some(item) = item {
 2910                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2911                    .await
 2912                    .map(|_| ())
 2913            } else {
 2914                Ok(())
 2915            }
 2916        })
 2917    }
 2918
 2919    pub fn close_inactive_items_and_panes(
 2920        &mut self,
 2921        action: &CloseInactiveTabsAndPanes,
 2922        window: &mut Window,
 2923        cx: &mut Context<Self>,
 2924    ) {
 2925        if let Some(task) = self.close_all_internal(
 2926            true,
 2927            action.save_intent.unwrap_or(SaveIntent::Close),
 2928            window,
 2929            cx,
 2930        ) {
 2931            task.detach_and_log_err(cx)
 2932        }
 2933    }
 2934
 2935    pub fn close_all_items_and_panes(
 2936        &mut self,
 2937        action: &CloseAllItemsAndPanes,
 2938        window: &mut Window,
 2939        cx: &mut Context<Self>,
 2940    ) {
 2941        if let Some(task) = self.close_all_internal(
 2942            false,
 2943            action.save_intent.unwrap_or(SaveIntent::Close),
 2944            window,
 2945            cx,
 2946        ) {
 2947            task.detach_and_log_err(cx)
 2948        }
 2949    }
 2950
 2951    fn close_all_internal(
 2952        &mut self,
 2953        retain_active_pane: bool,
 2954        save_intent: SaveIntent,
 2955        window: &mut Window,
 2956        cx: &mut Context<Self>,
 2957    ) -> Option<Task<Result<()>>> {
 2958        let current_pane = self.active_pane();
 2959
 2960        let mut tasks = Vec::new();
 2961
 2962        if retain_active_pane {
 2963            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2964                pane.close_other_items(
 2965                    &CloseOtherItems {
 2966                        save_intent: None,
 2967                        close_pinned: false,
 2968                    },
 2969                    None,
 2970                    window,
 2971                    cx,
 2972                )
 2973            });
 2974
 2975            tasks.push(current_pane_close);
 2976        }
 2977
 2978        for pane in self.panes() {
 2979            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2980                continue;
 2981            }
 2982
 2983            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2984                pane.close_all_items(
 2985                    &CloseAllItems {
 2986                        save_intent: Some(save_intent),
 2987                        close_pinned: false,
 2988                    },
 2989                    window,
 2990                    cx,
 2991                )
 2992            });
 2993
 2994            tasks.push(close_pane_items)
 2995        }
 2996
 2997        if tasks.is_empty() {
 2998            None
 2999        } else {
 3000            Some(cx.spawn_in(window, async move |_, _| {
 3001                for task in tasks {
 3002                    task.await?
 3003                }
 3004                Ok(())
 3005            }))
 3006        }
 3007    }
 3008
 3009    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3010        self.dock_at_position(position).read(cx).is_open()
 3011    }
 3012
 3013    pub fn toggle_dock(
 3014        &mut self,
 3015        dock_side: DockPosition,
 3016        window: &mut Window,
 3017        cx: &mut Context<Self>,
 3018    ) {
 3019        let mut focus_center = false;
 3020        let mut reveal_dock = false;
 3021
 3022        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3023        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3024        if was_visible {
 3025            self.save_open_dock_positions(cx);
 3026        }
 3027
 3028        let dock = self.dock_at_position(dock_side);
 3029        dock.update(cx, |dock, cx| {
 3030            dock.set_open(!was_visible, window, cx);
 3031
 3032            if dock.active_panel().is_none() {
 3033                let Some(panel_ix) = dock
 3034                    .first_enabled_panel_idx(cx)
 3035                    .log_with_level(log::Level::Info)
 3036                else {
 3037                    return;
 3038                };
 3039                dock.activate_panel(panel_ix, window, cx);
 3040            }
 3041
 3042            if let Some(active_panel) = dock.active_panel() {
 3043                if was_visible {
 3044                    if active_panel
 3045                        .panel_focus_handle(cx)
 3046                        .contains_focused(window, cx)
 3047                    {
 3048                        focus_center = true;
 3049                    }
 3050                } else {
 3051                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3052                    window.focus(focus_handle);
 3053                    reveal_dock = true;
 3054                }
 3055            }
 3056        });
 3057
 3058        if reveal_dock {
 3059            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3060        }
 3061
 3062        if focus_center {
 3063            self.active_pane
 3064                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3065        }
 3066
 3067        cx.notify();
 3068        self.serialize_workspace(window, cx);
 3069    }
 3070
 3071    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3072        self.all_docks().into_iter().find(|&dock| {
 3073            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3074        })
 3075    }
 3076
 3077    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3078        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3079            self.save_open_dock_positions(cx);
 3080            dock.update(cx, |dock, cx| {
 3081                dock.set_open(false, window, cx);
 3082            });
 3083            return true;
 3084        }
 3085        false
 3086    }
 3087
 3088    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3089        self.save_open_dock_positions(cx);
 3090        for dock in self.all_docks() {
 3091            dock.update(cx, |dock, cx| {
 3092                dock.set_open(false, window, cx);
 3093            });
 3094        }
 3095
 3096        cx.focus_self(window);
 3097        cx.notify();
 3098        self.serialize_workspace(window, cx);
 3099    }
 3100
 3101    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3102        self.all_docks()
 3103            .into_iter()
 3104            .filter_map(|dock| {
 3105                let dock_ref = dock.read(cx);
 3106                if dock_ref.is_open() {
 3107                    Some(dock_ref.position())
 3108                } else {
 3109                    None
 3110                }
 3111            })
 3112            .collect()
 3113    }
 3114
 3115    /// Saves the positions of currently open docks.
 3116    ///
 3117    /// Updates `last_open_dock_positions` with positions of all currently open
 3118    /// docks, to later be restored by the 'Toggle All Docks' action.
 3119    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3120        let open_dock_positions = self.get_open_dock_positions(cx);
 3121        if !open_dock_positions.is_empty() {
 3122            self.last_open_dock_positions = open_dock_positions;
 3123        }
 3124    }
 3125
 3126    /// Toggles all docks between open and closed states.
 3127    ///
 3128    /// If any docks are open, closes all and remembers their positions. If all
 3129    /// docks are closed, restores the last remembered dock configuration.
 3130    fn toggle_all_docks(
 3131        &mut self,
 3132        _: &ToggleAllDocks,
 3133        window: &mut Window,
 3134        cx: &mut Context<Self>,
 3135    ) {
 3136        let open_dock_positions = self.get_open_dock_positions(cx);
 3137
 3138        if !open_dock_positions.is_empty() {
 3139            self.close_all_docks(window, cx);
 3140        } else if !self.last_open_dock_positions.is_empty() {
 3141            self.restore_last_open_docks(window, cx);
 3142        }
 3143    }
 3144
 3145    /// Reopens docks from the most recently remembered configuration.
 3146    ///
 3147    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3148    /// and clears the stored positions.
 3149    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3150        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3151
 3152        for position in positions_to_open {
 3153            let dock = self.dock_at_position(position);
 3154            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3155        }
 3156
 3157        cx.focus_self(window);
 3158        cx.notify();
 3159        self.serialize_workspace(window, cx);
 3160    }
 3161
 3162    /// Transfer focus to the panel of the given type.
 3163    pub fn focus_panel<T: Panel>(
 3164        &mut self,
 3165        window: &mut Window,
 3166        cx: &mut Context<Self>,
 3167    ) -> Option<Entity<T>> {
 3168        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3169        panel.to_any().downcast().ok()
 3170    }
 3171
 3172    /// Focus the panel of the given type if it isn't already focused. If it is
 3173    /// already focused, then transfer focus back to the workspace center.
 3174    pub fn toggle_panel_focus<T: Panel>(
 3175        &mut self,
 3176        window: &mut Window,
 3177        cx: &mut Context<Self>,
 3178    ) -> bool {
 3179        let mut did_focus_panel = false;
 3180        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3181            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3182            did_focus_panel
 3183        });
 3184        did_focus_panel
 3185    }
 3186
 3187    pub fn activate_panel_for_proto_id(
 3188        &mut self,
 3189        panel_id: PanelId,
 3190        window: &mut Window,
 3191        cx: &mut Context<Self>,
 3192    ) -> Option<Arc<dyn PanelHandle>> {
 3193        let mut panel = None;
 3194        for dock in self.all_docks() {
 3195            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3196                panel = dock.update(cx, |dock, cx| {
 3197                    dock.activate_panel(panel_index, window, cx);
 3198                    dock.set_open(true, window, cx);
 3199                    dock.active_panel().cloned()
 3200                });
 3201                break;
 3202            }
 3203        }
 3204
 3205        if panel.is_some() {
 3206            cx.notify();
 3207            self.serialize_workspace(window, cx);
 3208        }
 3209
 3210        panel
 3211    }
 3212
 3213    /// Focus or unfocus the given panel type, depending on the given callback.
 3214    fn focus_or_unfocus_panel<T: Panel>(
 3215        &mut self,
 3216        window: &mut Window,
 3217        cx: &mut Context<Self>,
 3218        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3219    ) -> Option<Arc<dyn PanelHandle>> {
 3220        let mut result_panel = None;
 3221        let mut serialize = false;
 3222        for dock in self.all_docks() {
 3223            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3224                let mut focus_center = false;
 3225                let panel = dock.update(cx, |dock, cx| {
 3226                    dock.activate_panel(panel_index, window, cx);
 3227
 3228                    let panel = dock.active_panel().cloned();
 3229                    if let Some(panel) = panel.as_ref() {
 3230                        if should_focus(&**panel, window, cx) {
 3231                            dock.set_open(true, window, cx);
 3232                            panel.panel_focus_handle(cx).focus(window);
 3233                        } else {
 3234                            focus_center = true;
 3235                        }
 3236                    }
 3237                    panel
 3238                });
 3239
 3240                if focus_center {
 3241                    self.active_pane
 3242                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3243                }
 3244
 3245                result_panel = panel;
 3246                serialize = true;
 3247                break;
 3248            }
 3249        }
 3250
 3251        if serialize {
 3252            self.serialize_workspace(window, cx);
 3253        }
 3254
 3255        cx.notify();
 3256        result_panel
 3257    }
 3258
 3259    /// Open the panel of the given type
 3260    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3261        for dock in self.all_docks() {
 3262            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3263                dock.update(cx, |dock, cx| {
 3264                    dock.activate_panel(panel_index, window, cx);
 3265                    dock.set_open(true, window, cx);
 3266                });
 3267            }
 3268        }
 3269    }
 3270
 3271    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3272        for dock in self.all_docks().iter() {
 3273            dock.update(cx, |dock, cx| {
 3274                if dock.panel::<T>().is_some() {
 3275                    dock.set_open(false, window, cx)
 3276                }
 3277            })
 3278        }
 3279    }
 3280
 3281    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3282        self.all_docks()
 3283            .iter()
 3284            .find_map(|dock| dock.read(cx).panel::<T>())
 3285    }
 3286
 3287    fn dismiss_zoomed_items_to_reveal(
 3288        &mut self,
 3289        dock_to_reveal: Option<DockPosition>,
 3290        window: &mut Window,
 3291        cx: &mut Context<Self>,
 3292    ) {
 3293        // If a center pane is zoomed, unzoom it.
 3294        for pane in &self.panes {
 3295            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3296                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3297            }
 3298        }
 3299
 3300        // If another dock is zoomed, hide it.
 3301        let mut focus_center = false;
 3302        for dock in self.all_docks() {
 3303            dock.update(cx, |dock, cx| {
 3304                if Some(dock.position()) != dock_to_reveal
 3305                    && let Some(panel) = dock.active_panel()
 3306                    && panel.is_zoomed(window, cx)
 3307                {
 3308                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3309                    dock.set_open(false, window, cx);
 3310                }
 3311            });
 3312        }
 3313
 3314        if focus_center {
 3315            self.active_pane
 3316                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3317        }
 3318
 3319        if self.zoomed_position != dock_to_reveal {
 3320            self.zoomed = None;
 3321            self.zoomed_position = None;
 3322            cx.emit(Event::ZoomChanged);
 3323        }
 3324
 3325        cx.notify();
 3326    }
 3327
 3328    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3329        let pane = cx.new(|cx| {
 3330            let mut pane = Pane::new(
 3331                self.weak_handle(),
 3332                self.project.clone(),
 3333                self.pane_history_timestamp.clone(),
 3334                None,
 3335                NewFile.boxed_clone(),
 3336                true,
 3337                window,
 3338                cx,
 3339            );
 3340            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3341            pane
 3342        });
 3343        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3344            .detach();
 3345        self.panes.push(pane.clone());
 3346
 3347        window.focus(&pane.focus_handle(cx));
 3348
 3349        cx.emit(Event::PaneAdded(pane.clone()));
 3350        pane
 3351    }
 3352
 3353    pub fn add_item_to_center(
 3354        &mut self,
 3355        item: Box<dyn ItemHandle>,
 3356        window: &mut Window,
 3357        cx: &mut Context<Self>,
 3358    ) -> bool {
 3359        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3360            if let Some(center_pane) = center_pane.upgrade() {
 3361                center_pane.update(cx, |pane, cx| {
 3362                    pane.add_item(item, true, true, None, window, cx)
 3363                });
 3364                true
 3365            } else {
 3366                false
 3367            }
 3368        } else {
 3369            false
 3370        }
 3371    }
 3372
 3373    pub fn add_item_to_active_pane(
 3374        &mut self,
 3375        item: Box<dyn ItemHandle>,
 3376        destination_index: Option<usize>,
 3377        focus_item: bool,
 3378        window: &mut Window,
 3379        cx: &mut App,
 3380    ) {
 3381        self.add_item(
 3382            self.active_pane.clone(),
 3383            item,
 3384            destination_index,
 3385            false,
 3386            focus_item,
 3387            window,
 3388            cx,
 3389        )
 3390    }
 3391
 3392    pub fn add_item(
 3393        &mut self,
 3394        pane: Entity<Pane>,
 3395        item: Box<dyn ItemHandle>,
 3396        destination_index: Option<usize>,
 3397        activate_pane: bool,
 3398        focus_item: bool,
 3399        window: &mut Window,
 3400        cx: &mut App,
 3401    ) {
 3402        pane.update(cx, |pane, cx| {
 3403            pane.add_item(
 3404                item,
 3405                activate_pane,
 3406                focus_item,
 3407                destination_index,
 3408                window,
 3409                cx,
 3410            )
 3411        });
 3412    }
 3413
 3414    pub fn split_item(
 3415        &mut self,
 3416        split_direction: SplitDirection,
 3417        item: Box<dyn ItemHandle>,
 3418        window: &mut Window,
 3419        cx: &mut Context<Self>,
 3420    ) {
 3421        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3422        self.add_item(new_pane, item, None, true, true, window, cx);
 3423    }
 3424
 3425    pub fn open_abs_path(
 3426        &mut self,
 3427        abs_path: PathBuf,
 3428        options: OpenOptions,
 3429        window: &mut Window,
 3430        cx: &mut Context<Self>,
 3431    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3432        cx.spawn_in(window, async move |workspace, cx| {
 3433            let open_paths_task_result = workspace
 3434                .update_in(cx, |workspace, window, cx| {
 3435                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3436                })
 3437                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3438                .await;
 3439            anyhow::ensure!(
 3440                open_paths_task_result.len() == 1,
 3441                "open abs path {abs_path:?} task returned incorrect number of results"
 3442            );
 3443            match open_paths_task_result
 3444                .into_iter()
 3445                .next()
 3446                .expect("ensured single task result")
 3447            {
 3448                Some(open_result) => {
 3449                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3450                }
 3451                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3452            }
 3453        })
 3454    }
 3455
 3456    pub fn split_abs_path(
 3457        &mut self,
 3458        abs_path: PathBuf,
 3459        visible: bool,
 3460        window: &mut Window,
 3461        cx: &mut Context<Self>,
 3462    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3463        let project_path_task =
 3464            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3465        cx.spawn_in(window, async move |this, cx| {
 3466            let (_, path) = project_path_task.await?;
 3467            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3468                .await
 3469        })
 3470    }
 3471
 3472    pub fn open_path(
 3473        &mut self,
 3474        path: impl Into<ProjectPath>,
 3475        pane: Option<WeakEntity<Pane>>,
 3476        focus_item: bool,
 3477        window: &mut Window,
 3478        cx: &mut App,
 3479    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3480        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3481    }
 3482
 3483    pub fn open_path_preview(
 3484        &mut self,
 3485        path: impl Into<ProjectPath>,
 3486        pane: Option<WeakEntity<Pane>>,
 3487        focus_item: bool,
 3488        allow_preview: bool,
 3489        activate: bool,
 3490        window: &mut Window,
 3491        cx: &mut App,
 3492    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3493        let pane = pane.unwrap_or_else(|| {
 3494            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3495                self.panes
 3496                    .first()
 3497                    .expect("There must be an active pane")
 3498                    .downgrade()
 3499            })
 3500        });
 3501
 3502        let project_path = path.into();
 3503        let task = self.load_path(project_path.clone(), window, cx);
 3504        window.spawn(cx, async move |cx| {
 3505            let (project_entry_id, build_item) = task.await?;
 3506
 3507            pane.update_in(cx, |pane, window, cx| {
 3508                pane.open_item(
 3509                    project_entry_id,
 3510                    project_path,
 3511                    focus_item,
 3512                    allow_preview,
 3513                    activate,
 3514                    None,
 3515                    window,
 3516                    cx,
 3517                    build_item,
 3518                )
 3519            })
 3520        })
 3521    }
 3522
 3523    pub fn split_path(
 3524        &mut self,
 3525        path: impl Into<ProjectPath>,
 3526        window: &mut Window,
 3527        cx: &mut Context<Self>,
 3528    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3529        self.split_path_preview(path, false, None, window, cx)
 3530    }
 3531
 3532    pub fn split_path_preview(
 3533        &mut self,
 3534        path: impl Into<ProjectPath>,
 3535        allow_preview: bool,
 3536        split_direction: Option<SplitDirection>,
 3537        window: &mut Window,
 3538        cx: &mut Context<Self>,
 3539    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3540        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3541            self.panes
 3542                .first()
 3543                .expect("There must be an active pane")
 3544                .downgrade()
 3545        });
 3546
 3547        if let Member::Pane(center_pane) = &self.center.root
 3548            && center_pane.read(cx).items_len() == 0
 3549        {
 3550            return self.open_path(path, Some(pane), true, window, cx);
 3551        }
 3552
 3553        let project_path = path.into();
 3554        let task = self.load_path(project_path.clone(), window, cx);
 3555        cx.spawn_in(window, async move |this, cx| {
 3556            let (project_entry_id, build_item) = task.await?;
 3557            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3558                let pane = pane.upgrade()?;
 3559                let new_pane = this.split_pane(
 3560                    pane,
 3561                    split_direction.unwrap_or(SplitDirection::Right),
 3562                    window,
 3563                    cx,
 3564                );
 3565                new_pane.update(cx, |new_pane, cx| {
 3566                    Some(new_pane.open_item(
 3567                        project_entry_id,
 3568                        project_path,
 3569                        true,
 3570                        allow_preview,
 3571                        true,
 3572                        None,
 3573                        window,
 3574                        cx,
 3575                        build_item,
 3576                    ))
 3577                })
 3578            })
 3579            .map(|option| option.context("pane was dropped"))?
 3580        })
 3581    }
 3582
 3583    fn load_path(
 3584        &mut self,
 3585        path: ProjectPath,
 3586        window: &mut Window,
 3587        cx: &mut App,
 3588    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3589        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3590        registry.open_path(self.project(), &path, window, cx)
 3591    }
 3592
 3593    pub fn find_project_item<T>(
 3594        &self,
 3595        pane: &Entity<Pane>,
 3596        project_item: &Entity<T::Item>,
 3597        cx: &App,
 3598    ) -> Option<Entity<T>>
 3599    where
 3600        T: ProjectItem,
 3601    {
 3602        use project::ProjectItem as _;
 3603        let project_item = project_item.read(cx);
 3604        let entry_id = project_item.entry_id(cx);
 3605        let project_path = project_item.project_path(cx);
 3606
 3607        let mut item = None;
 3608        if let Some(entry_id) = entry_id {
 3609            item = pane.read(cx).item_for_entry(entry_id, cx);
 3610        }
 3611        if item.is_none()
 3612            && let Some(project_path) = project_path
 3613        {
 3614            item = pane.read(cx).item_for_path(project_path, cx);
 3615        }
 3616
 3617        item.and_then(|item| item.downcast::<T>())
 3618    }
 3619
 3620    pub fn is_project_item_open<T>(
 3621        &self,
 3622        pane: &Entity<Pane>,
 3623        project_item: &Entity<T::Item>,
 3624        cx: &App,
 3625    ) -> bool
 3626    where
 3627        T: ProjectItem,
 3628    {
 3629        self.find_project_item::<T>(pane, project_item, cx)
 3630            .is_some()
 3631    }
 3632
 3633    pub fn open_project_item<T>(
 3634        &mut self,
 3635        pane: Entity<Pane>,
 3636        project_item: Entity<T::Item>,
 3637        activate_pane: bool,
 3638        focus_item: bool,
 3639        window: &mut Window,
 3640        cx: &mut Context<Self>,
 3641    ) -> Entity<T>
 3642    where
 3643        T: ProjectItem,
 3644    {
 3645        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3646            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3647            return item;
 3648        }
 3649
 3650        let item = pane.update(cx, |pane, cx| {
 3651            cx.new(|cx| {
 3652                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3653            })
 3654        });
 3655        let item_id = item.item_id();
 3656        let mut destination_index = None;
 3657        pane.update(cx, |pane, cx| {
 3658            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation
 3659                && let Some(preview_item_id) = pane.preview_item_id()
 3660                && preview_item_id != item_id
 3661            {
 3662                destination_index = pane.close_current_preview_item(window, cx);
 3663            }
 3664            pane.set_preview_item_id(Some(item.item_id()), cx)
 3665        });
 3666
 3667        self.add_item(
 3668            pane,
 3669            Box::new(item.clone()),
 3670            destination_index,
 3671            activate_pane,
 3672            focus_item,
 3673            window,
 3674            cx,
 3675        );
 3676        item
 3677    }
 3678
 3679    pub fn open_shared_screen(
 3680        &mut self,
 3681        peer_id: PeerId,
 3682        window: &mut Window,
 3683        cx: &mut Context<Self>,
 3684    ) {
 3685        if let Some(shared_screen) =
 3686            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3687        {
 3688            self.active_pane.update(cx, |pane, cx| {
 3689                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3690            });
 3691        }
 3692    }
 3693
 3694    pub fn activate_item(
 3695        &mut self,
 3696        item: &dyn ItemHandle,
 3697        activate_pane: bool,
 3698        focus_item: bool,
 3699        window: &mut Window,
 3700        cx: &mut App,
 3701    ) -> bool {
 3702        let result = self.panes.iter().find_map(|pane| {
 3703            pane.read(cx)
 3704                .index_for_item(item)
 3705                .map(|ix| (pane.clone(), ix))
 3706        });
 3707        if let Some((pane, ix)) = result {
 3708            pane.update(cx, |pane, cx| {
 3709                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3710            });
 3711            true
 3712        } else {
 3713            false
 3714        }
 3715    }
 3716
 3717    fn activate_pane_at_index(
 3718        &mut self,
 3719        action: &ActivatePane,
 3720        window: &mut Window,
 3721        cx: &mut Context<Self>,
 3722    ) {
 3723        let panes = self.center.panes();
 3724        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3725            window.focus(&pane.focus_handle(cx));
 3726        } else {
 3727            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3728                .detach();
 3729        }
 3730    }
 3731
 3732    fn move_item_to_pane_at_index(
 3733        &mut self,
 3734        action: &MoveItemToPane,
 3735        window: &mut Window,
 3736        cx: &mut Context<Self>,
 3737    ) {
 3738        let panes = self.center.panes();
 3739        let destination = match panes.get(action.destination) {
 3740            Some(&destination) => destination.clone(),
 3741            None => {
 3742                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3743                    return;
 3744                }
 3745                let direction = SplitDirection::Right;
 3746                let split_off_pane = self
 3747                    .find_pane_in_direction(direction, cx)
 3748                    .unwrap_or_else(|| self.active_pane.clone());
 3749                let new_pane = self.add_pane(window, cx);
 3750                if self
 3751                    .center
 3752                    .split(&split_off_pane, &new_pane, direction)
 3753                    .log_err()
 3754                    .is_none()
 3755                {
 3756                    return;
 3757                };
 3758                new_pane
 3759            }
 3760        };
 3761
 3762        if action.clone {
 3763            if self
 3764                .active_pane
 3765                .read(cx)
 3766                .active_item()
 3767                .is_some_and(|item| item.can_split(cx))
 3768            {
 3769                clone_active_item(
 3770                    self.database_id(),
 3771                    &self.active_pane,
 3772                    &destination,
 3773                    action.focus,
 3774                    window,
 3775                    cx,
 3776                );
 3777                return;
 3778            }
 3779        }
 3780        move_active_item(
 3781            &self.active_pane,
 3782            &destination,
 3783            action.focus,
 3784            true,
 3785            window,
 3786            cx,
 3787        )
 3788    }
 3789
 3790    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3791        let panes = self.center.panes();
 3792        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3793            let next_ix = (ix + 1) % panes.len();
 3794            let next_pane = panes[next_ix].clone();
 3795            window.focus(&next_pane.focus_handle(cx));
 3796        }
 3797    }
 3798
 3799    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3800        let panes = self.center.panes();
 3801        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3802            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3803            let prev_pane = panes[prev_ix].clone();
 3804            window.focus(&prev_pane.focus_handle(cx));
 3805        }
 3806    }
 3807
 3808    pub fn activate_pane_in_direction(
 3809        &mut self,
 3810        direction: SplitDirection,
 3811        window: &mut Window,
 3812        cx: &mut App,
 3813    ) {
 3814        use ActivateInDirectionTarget as Target;
 3815        enum Origin {
 3816            LeftDock,
 3817            RightDock,
 3818            BottomDock,
 3819            Center,
 3820        }
 3821
 3822        let origin: Origin = [
 3823            (&self.left_dock, Origin::LeftDock),
 3824            (&self.right_dock, Origin::RightDock),
 3825            (&self.bottom_dock, Origin::BottomDock),
 3826        ]
 3827        .into_iter()
 3828        .find_map(|(dock, origin)| {
 3829            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3830                Some(origin)
 3831            } else {
 3832                None
 3833            }
 3834        })
 3835        .unwrap_or(Origin::Center);
 3836
 3837        let get_last_active_pane = || {
 3838            let pane = self
 3839                .last_active_center_pane
 3840                .clone()
 3841                .unwrap_or_else(|| {
 3842                    self.panes
 3843                        .first()
 3844                        .expect("There must be an active pane")
 3845                        .downgrade()
 3846                })
 3847                .upgrade()?;
 3848            (pane.read(cx).items_len() != 0).then_some(pane)
 3849        };
 3850
 3851        let try_dock =
 3852            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3853
 3854        let target = match (origin, direction) {
 3855            // We're in the center, so we first try to go to a different pane,
 3856            // otherwise try to go to a dock.
 3857            (Origin::Center, direction) => {
 3858                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3859                    Some(Target::Pane(pane))
 3860                } else {
 3861                    match direction {
 3862                        SplitDirection::Up => None,
 3863                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3864                        SplitDirection::Left => try_dock(&self.left_dock),
 3865                        SplitDirection::Right => try_dock(&self.right_dock),
 3866                    }
 3867                }
 3868            }
 3869
 3870            (Origin::LeftDock, SplitDirection::Right) => {
 3871                if let Some(last_active_pane) = get_last_active_pane() {
 3872                    Some(Target::Pane(last_active_pane))
 3873                } else {
 3874                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3875                }
 3876            }
 3877
 3878            (Origin::LeftDock, SplitDirection::Down)
 3879            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3880
 3881            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3882            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3883            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3884
 3885            (Origin::RightDock, SplitDirection::Left) => {
 3886                if let Some(last_active_pane) = get_last_active_pane() {
 3887                    Some(Target::Pane(last_active_pane))
 3888                } else {
 3889                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3890                }
 3891            }
 3892
 3893            _ => None,
 3894        };
 3895
 3896        match target {
 3897            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3898                let pane = pane.read(cx);
 3899                if let Some(item) = pane.active_item() {
 3900                    item.item_focus_handle(cx).focus(window);
 3901                } else {
 3902                    log::error!(
 3903                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3904                    );
 3905                }
 3906            }
 3907            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3908                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3909                window.defer(cx, move |window, cx| {
 3910                    let dock = dock.read(cx);
 3911                    if let Some(panel) = dock.active_panel() {
 3912                        panel.panel_focus_handle(cx).focus(window);
 3913                    } else {
 3914                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3915                    }
 3916                })
 3917            }
 3918            None => {}
 3919        }
 3920    }
 3921
 3922    pub fn move_item_to_pane_in_direction(
 3923        &mut self,
 3924        action: &MoveItemToPaneInDirection,
 3925        window: &mut Window,
 3926        cx: &mut Context<Self>,
 3927    ) {
 3928        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3929            Some(destination) => destination,
 3930            None => {
 3931                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3932                    return;
 3933                }
 3934                let new_pane = self.add_pane(window, cx);
 3935                if self
 3936                    .center
 3937                    .split(&self.active_pane, &new_pane, action.direction)
 3938                    .log_err()
 3939                    .is_none()
 3940                {
 3941                    return;
 3942                };
 3943                new_pane
 3944            }
 3945        };
 3946
 3947        if action.clone {
 3948            if self
 3949                .active_pane
 3950                .read(cx)
 3951                .active_item()
 3952                .is_some_and(|item| item.can_split(cx))
 3953            {
 3954                clone_active_item(
 3955                    self.database_id(),
 3956                    &self.active_pane,
 3957                    &destination,
 3958                    action.focus,
 3959                    window,
 3960                    cx,
 3961                );
 3962                return;
 3963            }
 3964        }
 3965        move_active_item(
 3966            &self.active_pane,
 3967            &destination,
 3968            action.focus,
 3969            true,
 3970            window,
 3971            cx,
 3972        );
 3973    }
 3974
 3975    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3976        self.center.bounding_box_for_pane(pane)
 3977    }
 3978
 3979    pub fn find_pane_in_direction(
 3980        &mut self,
 3981        direction: SplitDirection,
 3982        cx: &App,
 3983    ) -> Option<Entity<Pane>> {
 3984        self.center
 3985            .find_pane_in_direction(&self.active_pane, direction, cx)
 3986            .cloned()
 3987    }
 3988
 3989    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3990        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3991            self.center.swap(&self.active_pane, &to);
 3992            cx.notify();
 3993        }
 3994    }
 3995
 3996    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3997        if self
 3998            .center
 3999            .move_to_border(&self.active_pane, direction)
 4000            .unwrap()
 4001        {
 4002            cx.notify();
 4003        }
 4004    }
 4005
 4006    pub fn resize_pane(
 4007        &mut self,
 4008        axis: gpui::Axis,
 4009        amount: Pixels,
 4010        window: &mut Window,
 4011        cx: &mut Context<Self>,
 4012    ) {
 4013        let docks = self.all_docks();
 4014        let active_dock = docks
 4015            .into_iter()
 4016            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4017
 4018        if let Some(dock) = active_dock {
 4019            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4020                return;
 4021            };
 4022            match dock.read(cx).position() {
 4023                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4024                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4025                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4026            }
 4027        } else {
 4028            self.center
 4029                .resize(&self.active_pane, axis, amount, &self.bounds);
 4030        }
 4031        cx.notify();
 4032    }
 4033
 4034    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4035        self.center.reset_pane_sizes();
 4036        cx.notify();
 4037    }
 4038
 4039    fn handle_pane_focused(
 4040        &mut self,
 4041        pane: Entity<Pane>,
 4042        window: &mut Window,
 4043        cx: &mut Context<Self>,
 4044    ) {
 4045        // This is explicitly hoisted out of the following check for pane identity as
 4046        // terminal panel panes are not registered as a center panes.
 4047        self.status_bar.update(cx, |status_bar, cx| {
 4048            status_bar.set_active_pane(&pane, window, cx);
 4049        });
 4050        if self.active_pane != pane {
 4051            self.set_active_pane(&pane, window, cx);
 4052        }
 4053
 4054        if self.last_active_center_pane.is_none() {
 4055            self.last_active_center_pane = Some(pane.downgrade());
 4056        }
 4057
 4058        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4059        if pane.read(cx).is_zoomed() {
 4060            self.zoomed = Some(pane.downgrade().into());
 4061        } else {
 4062            self.zoomed = None;
 4063        }
 4064        self.zoomed_position = None;
 4065        cx.emit(Event::ZoomChanged);
 4066        self.update_active_view_for_followers(window, cx);
 4067        pane.update(cx, |pane, _| {
 4068            pane.track_alternate_file_items();
 4069        });
 4070
 4071        cx.notify();
 4072    }
 4073
 4074    fn set_active_pane(
 4075        &mut self,
 4076        pane: &Entity<Pane>,
 4077        window: &mut Window,
 4078        cx: &mut Context<Self>,
 4079    ) {
 4080        self.active_pane = pane.clone();
 4081        self.active_item_path_changed(window, cx);
 4082        self.last_active_center_pane = Some(pane.downgrade());
 4083    }
 4084
 4085    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4086        self.update_active_view_for_followers(window, cx);
 4087    }
 4088
 4089    fn handle_pane_event(
 4090        &mut self,
 4091        pane: &Entity<Pane>,
 4092        event: &pane::Event,
 4093        window: &mut Window,
 4094        cx: &mut Context<Self>,
 4095    ) {
 4096        let mut serialize_workspace = true;
 4097        match event {
 4098            pane::Event::AddItem { item } => {
 4099                item.added_to_pane(self, pane.clone(), window, cx);
 4100                cx.emit(Event::ItemAdded {
 4101                    item: item.boxed_clone(),
 4102                });
 4103            }
 4104            pane::Event::Split {
 4105                direction,
 4106                clone_active_item,
 4107            } => {
 4108                if *clone_active_item {
 4109                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4110                        .detach();
 4111                } else {
 4112                    self.split_and_move(pane.clone(), *direction, window, cx);
 4113                }
 4114            }
 4115            pane::Event::JoinIntoNext => {
 4116                self.join_pane_into_next(pane.clone(), window, cx);
 4117            }
 4118            pane::Event::JoinAll => {
 4119                self.join_all_panes(window, cx);
 4120            }
 4121            pane::Event::Remove { focus_on_pane } => {
 4122                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4123            }
 4124            pane::Event::ActivateItem {
 4125                local,
 4126                focus_changed,
 4127            } => {
 4128                window.invalidate_character_coordinates();
 4129
 4130                pane.update(cx, |pane, _| {
 4131                    pane.track_alternate_file_items();
 4132                });
 4133                if *local {
 4134                    self.unfollow_in_pane(pane, window, cx);
 4135                }
 4136                serialize_workspace = *focus_changed || pane != self.active_pane();
 4137                if pane == self.active_pane() {
 4138                    self.active_item_path_changed(window, cx);
 4139                    self.update_active_view_for_followers(window, cx);
 4140                } else if *local {
 4141                    self.set_active_pane(pane, window, cx);
 4142                }
 4143            }
 4144            pane::Event::UserSavedItem { item, save_intent } => {
 4145                cx.emit(Event::UserSavedItem {
 4146                    pane: pane.downgrade(),
 4147                    item: item.boxed_clone(),
 4148                    save_intent: *save_intent,
 4149                });
 4150                serialize_workspace = false;
 4151            }
 4152            pane::Event::ChangeItemTitle => {
 4153                if *pane == self.active_pane {
 4154                    self.active_item_path_changed(window, cx);
 4155                }
 4156                serialize_workspace = false;
 4157            }
 4158            pane::Event::RemovedItem { item } => {
 4159                cx.emit(Event::ActiveItemChanged);
 4160                self.update_window_edited(window, cx);
 4161                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4162                    && entry.get().entity_id() == pane.entity_id()
 4163                {
 4164                    entry.remove();
 4165                }
 4166                cx.emit(Event::ItemRemoved {
 4167                    item_id: item.item_id(),
 4168                });
 4169            }
 4170            pane::Event::Focus => {
 4171                window.invalidate_character_coordinates();
 4172                self.handle_pane_focused(pane.clone(), window, cx);
 4173            }
 4174            pane::Event::ZoomIn => {
 4175                if *pane == self.active_pane {
 4176                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4177                    if pane.read(cx).has_focus(window, cx) {
 4178                        self.zoomed = Some(pane.downgrade().into());
 4179                        self.zoomed_position = None;
 4180                        cx.emit(Event::ZoomChanged);
 4181                    }
 4182                    cx.notify();
 4183                }
 4184            }
 4185            pane::Event::ZoomOut => {
 4186                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4187                if self.zoomed_position.is_none() {
 4188                    self.zoomed = None;
 4189                    cx.emit(Event::ZoomChanged);
 4190                }
 4191                cx.notify();
 4192            }
 4193            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4194        }
 4195
 4196        if serialize_workspace {
 4197            self.serialize_workspace(window, cx);
 4198        }
 4199    }
 4200
 4201    pub fn unfollow_in_pane(
 4202        &mut self,
 4203        pane: &Entity<Pane>,
 4204        window: &mut Window,
 4205        cx: &mut Context<Workspace>,
 4206    ) -> Option<CollaboratorId> {
 4207        let leader_id = self.leader_for_pane(pane)?;
 4208        self.unfollow(leader_id, window, cx);
 4209        Some(leader_id)
 4210    }
 4211
 4212    pub fn split_pane(
 4213        &mut self,
 4214        pane_to_split: Entity<Pane>,
 4215        split_direction: SplitDirection,
 4216        window: &mut Window,
 4217        cx: &mut Context<Self>,
 4218    ) -> Entity<Pane> {
 4219        let new_pane = self.add_pane(window, cx);
 4220        self.center
 4221            .split(&pane_to_split, &new_pane, split_direction)
 4222            .unwrap();
 4223        cx.notify();
 4224        new_pane
 4225    }
 4226
 4227    pub fn split_and_move(
 4228        &mut self,
 4229        pane: Entity<Pane>,
 4230        direction: SplitDirection,
 4231        window: &mut Window,
 4232        cx: &mut Context<Self>,
 4233    ) {
 4234        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4235            return;
 4236        };
 4237        let new_pane = self.add_pane(window, cx);
 4238        new_pane.update(cx, |pane, cx| {
 4239            pane.add_item(item, true, true, None, window, cx)
 4240        });
 4241        self.center.split(&pane, &new_pane, direction).unwrap();
 4242        cx.notify();
 4243    }
 4244
 4245    pub fn split_and_clone(
 4246        &mut self,
 4247        pane: Entity<Pane>,
 4248        direction: SplitDirection,
 4249        window: &mut Window,
 4250        cx: &mut Context<Self>,
 4251    ) -> Task<Option<Entity<Pane>>> {
 4252        let Some(item) = pane.read(cx).active_item() else {
 4253            return Task::ready(None);
 4254        };
 4255        if !item.can_split(cx) {
 4256            return Task::ready(None);
 4257        }
 4258        let task = item.clone_on_split(self.database_id(), window, cx);
 4259        cx.spawn_in(window, async move |this, cx| {
 4260            if let Some(clone) = task.await {
 4261                this.update_in(cx, |this, window, cx| {
 4262                    let new_pane = this.add_pane(window, cx);
 4263                    new_pane.update(cx, |pane, cx| {
 4264                        pane.add_item(clone, true, true, None, window, cx)
 4265                    });
 4266                    this.center.split(&pane, &new_pane, direction).unwrap();
 4267                    cx.notify();
 4268                    new_pane
 4269                })
 4270                .ok()
 4271            } else {
 4272                None
 4273            }
 4274        })
 4275    }
 4276
 4277    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4278        let active_item = self.active_pane.read(cx).active_item();
 4279        for pane in &self.panes {
 4280            join_pane_into_active(&self.active_pane, pane, window, cx);
 4281        }
 4282        if let Some(active_item) = active_item {
 4283            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4284        }
 4285        cx.notify();
 4286    }
 4287
 4288    pub fn join_pane_into_next(
 4289        &mut self,
 4290        pane: Entity<Pane>,
 4291        window: &mut Window,
 4292        cx: &mut Context<Self>,
 4293    ) {
 4294        let next_pane = self
 4295            .find_pane_in_direction(SplitDirection::Right, cx)
 4296            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4297            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4298            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4299        let Some(next_pane) = next_pane else {
 4300            return;
 4301        };
 4302        move_all_items(&pane, &next_pane, window, cx);
 4303        cx.notify();
 4304    }
 4305
 4306    fn remove_pane(
 4307        &mut self,
 4308        pane: Entity<Pane>,
 4309        focus_on: Option<Entity<Pane>>,
 4310        window: &mut Window,
 4311        cx: &mut Context<Self>,
 4312    ) {
 4313        if self.center.remove(&pane).unwrap() {
 4314            self.force_remove_pane(&pane, &focus_on, window, cx);
 4315            self.unfollow_in_pane(&pane, window, cx);
 4316            self.last_leaders_by_pane.remove(&pane.downgrade());
 4317            for removed_item in pane.read(cx).items() {
 4318                self.panes_by_item.remove(&removed_item.item_id());
 4319            }
 4320
 4321            cx.notify();
 4322        } else {
 4323            self.active_item_path_changed(window, cx);
 4324        }
 4325        cx.emit(Event::PaneRemoved);
 4326    }
 4327
 4328    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4329        &mut self.panes
 4330    }
 4331
 4332    pub fn panes(&self) -> &[Entity<Pane>] {
 4333        &self.panes
 4334    }
 4335
 4336    pub fn active_pane(&self) -> &Entity<Pane> {
 4337        &self.active_pane
 4338    }
 4339
 4340    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4341        for dock in self.all_docks() {
 4342            if dock.focus_handle(cx).contains_focused(window, cx)
 4343                && let Some(pane) = dock
 4344                    .read(cx)
 4345                    .active_panel()
 4346                    .and_then(|panel| panel.pane(cx))
 4347            {
 4348                return pane;
 4349            }
 4350        }
 4351        self.active_pane().clone()
 4352    }
 4353
 4354    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4355        self.find_pane_in_direction(SplitDirection::Right, cx)
 4356            .unwrap_or_else(|| {
 4357                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4358            })
 4359    }
 4360
 4361    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4362        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4363        weak_pane.upgrade()
 4364    }
 4365
 4366    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4367        self.follower_states.retain(|leader_id, state| {
 4368            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4369                for item in state.items_by_leader_view_id.values() {
 4370                    item.view.set_leader_id(None, window, cx);
 4371                }
 4372                false
 4373            } else {
 4374                true
 4375            }
 4376        });
 4377        cx.notify();
 4378    }
 4379
 4380    pub fn start_following(
 4381        &mut self,
 4382        leader_id: impl Into<CollaboratorId>,
 4383        window: &mut Window,
 4384        cx: &mut Context<Self>,
 4385    ) -> Option<Task<Result<()>>> {
 4386        let leader_id = leader_id.into();
 4387        let pane = self.active_pane().clone();
 4388
 4389        self.last_leaders_by_pane
 4390            .insert(pane.downgrade(), leader_id);
 4391        self.unfollow(leader_id, window, cx);
 4392        self.unfollow_in_pane(&pane, window, cx);
 4393        self.follower_states.insert(
 4394            leader_id,
 4395            FollowerState {
 4396                center_pane: pane.clone(),
 4397                dock_pane: None,
 4398                active_view_id: None,
 4399                items_by_leader_view_id: Default::default(),
 4400            },
 4401        );
 4402        cx.notify();
 4403
 4404        match leader_id {
 4405            CollaboratorId::PeerId(leader_peer_id) => {
 4406                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4407                let project_id = self.project.read(cx).remote_id();
 4408                let request = self.app_state.client.request(proto::Follow {
 4409                    room_id,
 4410                    project_id,
 4411                    leader_id: Some(leader_peer_id),
 4412                });
 4413
 4414                Some(cx.spawn_in(window, async move |this, cx| {
 4415                    let response = request.await?;
 4416                    this.update(cx, |this, _| {
 4417                        let state = this
 4418                            .follower_states
 4419                            .get_mut(&leader_id)
 4420                            .context("following interrupted")?;
 4421                        state.active_view_id = response
 4422                            .active_view
 4423                            .as_ref()
 4424                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4425                        anyhow::Ok(())
 4426                    })??;
 4427                    if let Some(view) = response.active_view {
 4428                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4429                    }
 4430                    this.update_in(cx, |this, window, cx| {
 4431                        this.leader_updated(leader_id, window, cx)
 4432                    })?;
 4433                    Ok(())
 4434                }))
 4435            }
 4436            CollaboratorId::Agent => {
 4437                self.leader_updated(leader_id, window, cx)?;
 4438                Some(Task::ready(Ok(())))
 4439            }
 4440        }
 4441    }
 4442
 4443    pub fn follow_next_collaborator(
 4444        &mut self,
 4445        _: &FollowNextCollaborator,
 4446        window: &mut Window,
 4447        cx: &mut Context<Self>,
 4448    ) {
 4449        let collaborators = self.project.read(cx).collaborators();
 4450        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4451            let mut collaborators = collaborators.keys().copied();
 4452            for peer_id in collaborators.by_ref() {
 4453                if CollaboratorId::PeerId(peer_id) == leader_id {
 4454                    break;
 4455                }
 4456            }
 4457            collaborators.next().map(CollaboratorId::PeerId)
 4458        } else if let Some(last_leader_id) =
 4459            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4460        {
 4461            match last_leader_id {
 4462                CollaboratorId::PeerId(peer_id) => {
 4463                    if collaborators.contains_key(peer_id) {
 4464                        Some(*last_leader_id)
 4465                    } else {
 4466                        None
 4467                    }
 4468                }
 4469                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4470            }
 4471        } else {
 4472            None
 4473        };
 4474
 4475        let pane = self.active_pane.clone();
 4476        let Some(leader_id) = next_leader_id.or_else(|| {
 4477            Some(CollaboratorId::PeerId(
 4478                collaborators.keys().copied().next()?,
 4479            ))
 4480        }) else {
 4481            return;
 4482        };
 4483        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4484            return;
 4485        }
 4486        if let Some(task) = self.start_following(leader_id, window, cx) {
 4487            task.detach_and_log_err(cx)
 4488        }
 4489    }
 4490
 4491    pub fn follow(
 4492        &mut self,
 4493        leader_id: impl Into<CollaboratorId>,
 4494        window: &mut Window,
 4495        cx: &mut Context<Self>,
 4496    ) {
 4497        let leader_id = leader_id.into();
 4498
 4499        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4500            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4501                return;
 4502            };
 4503            let room = room.read(cx);
 4504            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4505                return;
 4506            };
 4507
 4508            let project = self.project.read(cx);
 4509
 4510            let other_project_id = match remote_participant.location {
 4511                call::ParticipantLocation::External => None,
 4512                call::ParticipantLocation::UnsharedProject => None,
 4513                call::ParticipantLocation::SharedProject { project_id } => {
 4514                    if Some(project_id) == project.remote_id() {
 4515                        None
 4516                    } else {
 4517                        Some(project_id)
 4518                    }
 4519                }
 4520            };
 4521
 4522            // if they are active in another project, follow there.
 4523            if let Some(project_id) = other_project_id {
 4524                let app_state = self.app_state.clone();
 4525                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4526                    .detach_and_log_err(cx);
 4527            }
 4528        }
 4529
 4530        // if you're already following, find the right pane and focus it.
 4531        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4532            window.focus(&follower_state.pane().focus_handle(cx));
 4533
 4534            return;
 4535        }
 4536
 4537        // Otherwise, follow.
 4538        if let Some(task) = self.start_following(leader_id, window, cx) {
 4539            task.detach_and_log_err(cx)
 4540        }
 4541    }
 4542
 4543    pub fn unfollow(
 4544        &mut self,
 4545        leader_id: impl Into<CollaboratorId>,
 4546        window: &mut Window,
 4547        cx: &mut Context<Self>,
 4548    ) -> Option<()> {
 4549        cx.notify();
 4550
 4551        let leader_id = leader_id.into();
 4552        let state = self.follower_states.remove(&leader_id)?;
 4553        for (_, item) in state.items_by_leader_view_id {
 4554            item.view.set_leader_id(None, window, cx);
 4555        }
 4556
 4557        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4558            let project_id = self.project.read(cx).remote_id();
 4559            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4560            self.app_state
 4561                .client
 4562                .send(proto::Unfollow {
 4563                    room_id,
 4564                    project_id,
 4565                    leader_id: Some(leader_peer_id),
 4566                })
 4567                .log_err();
 4568        }
 4569
 4570        Some(())
 4571    }
 4572
 4573    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4574        self.follower_states.contains_key(&id.into())
 4575    }
 4576
 4577    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4578        cx.emit(Event::ActiveItemChanged);
 4579        let active_entry = self.active_project_path(cx);
 4580        self.project.update(cx, |project, cx| {
 4581            project.set_active_path(active_entry.clone(), cx)
 4582        });
 4583
 4584        if let Some(project_path) = &active_entry {
 4585            let git_store_entity = self.project.read(cx).git_store().clone();
 4586            git_store_entity.update(cx, |git_store, cx| {
 4587                git_store.set_active_repo_for_path(project_path, cx);
 4588            });
 4589        }
 4590
 4591        self.update_window_title(window, cx);
 4592    }
 4593
 4594    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4595        let project = self.project().read(cx);
 4596        let mut title = String::new();
 4597
 4598        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4599            let name = {
 4600                let settings_location = SettingsLocation {
 4601                    worktree_id: worktree.read(cx).id(),
 4602                    path: RelPath::empty(),
 4603                };
 4604
 4605                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4606                match &settings.project_name {
 4607                    Some(name) => name.as_str(),
 4608                    None => worktree.read(cx).root_name_str(),
 4609                }
 4610            };
 4611            if i > 0 {
 4612                title.push_str(", ");
 4613            }
 4614            title.push_str(name);
 4615        }
 4616
 4617        if title.is_empty() {
 4618            title = "empty project".to_string();
 4619        }
 4620
 4621        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4622            let filename = path.path.file_name().or_else(|| {
 4623                Some(
 4624                    project
 4625                        .worktree_for_id(path.worktree_id, cx)?
 4626                        .read(cx)
 4627                        .root_name_str(),
 4628                )
 4629            });
 4630
 4631            if let Some(filename) = filename {
 4632                title.push_str("");
 4633                title.push_str(filename.as_ref());
 4634            }
 4635        }
 4636
 4637        if project.is_via_collab() {
 4638            title.push_str("");
 4639        } else if project.is_shared() {
 4640            title.push_str("");
 4641        }
 4642
 4643        if let Some(last_title) = self.last_window_title.as_ref()
 4644            && &title == last_title
 4645        {
 4646            return;
 4647        }
 4648        window.set_window_title(&title);
 4649        SystemWindowTabController::update_tab_title(
 4650            cx,
 4651            window.window_handle().window_id(),
 4652            SharedString::from(&title),
 4653        );
 4654        self.last_window_title = Some(title);
 4655    }
 4656
 4657    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4658        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4659        if is_edited != self.window_edited {
 4660            self.window_edited = is_edited;
 4661            window.set_window_edited(self.window_edited)
 4662        }
 4663    }
 4664
 4665    fn update_item_dirty_state(
 4666        &mut self,
 4667        item: &dyn ItemHandle,
 4668        window: &mut Window,
 4669        cx: &mut App,
 4670    ) {
 4671        let is_dirty = item.is_dirty(cx);
 4672        let item_id = item.item_id();
 4673        let was_dirty = self.dirty_items.contains_key(&item_id);
 4674        if is_dirty == was_dirty {
 4675            return;
 4676        }
 4677        if was_dirty {
 4678            self.dirty_items.remove(&item_id);
 4679            self.update_window_edited(window, cx);
 4680            return;
 4681        }
 4682        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4683            let s = item.on_release(
 4684                cx,
 4685                Box::new(move |cx| {
 4686                    window_handle
 4687                        .update(cx, |this, window, cx| {
 4688                            this.dirty_items.remove(&item_id);
 4689                            this.update_window_edited(window, cx)
 4690                        })
 4691                        .ok();
 4692                }),
 4693            );
 4694            self.dirty_items.insert(item_id, s);
 4695            self.update_window_edited(window, cx);
 4696        }
 4697    }
 4698
 4699    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4700        if self.notifications.is_empty() {
 4701            None
 4702        } else {
 4703            Some(
 4704                div()
 4705                    .absolute()
 4706                    .right_3()
 4707                    .bottom_3()
 4708                    .w_112()
 4709                    .h_full()
 4710                    .flex()
 4711                    .flex_col()
 4712                    .justify_end()
 4713                    .gap_2()
 4714                    .children(
 4715                        self.notifications
 4716                            .iter()
 4717                            .map(|(_, notification)| notification.clone().into_any()),
 4718                    ),
 4719            )
 4720        }
 4721    }
 4722
 4723    // RPC handlers
 4724
 4725    fn active_view_for_follower(
 4726        &self,
 4727        follower_project_id: Option<u64>,
 4728        window: &mut Window,
 4729        cx: &mut Context<Self>,
 4730    ) -> Option<proto::View> {
 4731        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4732        let item = item?;
 4733        let leader_id = self
 4734            .pane_for(&*item)
 4735            .and_then(|pane| self.leader_for_pane(&pane));
 4736        let leader_peer_id = match leader_id {
 4737            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4738            Some(CollaboratorId::Agent) | None => None,
 4739        };
 4740
 4741        let item_handle = item.to_followable_item_handle(cx)?;
 4742        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4743        let variant = item_handle.to_state_proto(window, cx)?;
 4744
 4745        if item_handle.is_project_item(window, cx)
 4746            && (follower_project_id.is_none()
 4747                || follower_project_id != self.project.read(cx).remote_id())
 4748        {
 4749            return None;
 4750        }
 4751
 4752        Some(proto::View {
 4753            id: id.to_proto(),
 4754            leader_id: leader_peer_id,
 4755            variant: Some(variant),
 4756            panel_id: panel_id.map(|id| id as i32),
 4757        })
 4758    }
 4759
 4760    fn handle_follow(
 4761        &mut self,
 4762        follower_project_id: Option<u64>,
 4763        window: &mut Window,
 4764        cx: &mut Context<Self>,
 4765    ) -> proto::FollowResponse {
 4766        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4767
 4768        cx.notify();
 4769        proto::FollowResponse {
 4770            // TODO: Remove after version 0.145.x stabilizes.
 4771            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4772            views: active_view.iter().cloned().collect(),
 4773            active_view,
 4774        }
 4775    }
 4776
 4777    fn handle_update_followers(
 4778        &mut self,
 4779        leader_id: PeerId,
 4780        message: proto::UpdateFollowers,
 4781        _window: &mut Window,
 4782        _cx: &mut Context<Self>,
 4783    ) {
 4784        self.leader_updates_tx
 4785            .unbounded_send((leader_id, message))
 4786            .ok();
 4787    }
 4788
 4789    async fn process_leader_update(
 4790        this: &WeakEntity<Self>,
 4791        leader_id: PeerId,
 4792        update: proto::UpdateFollowers,
 4793        cx: &mut AsyncWindowContext,
 4794    ) -> Result<()> {
 4795        match update.variant.context("invalid update")? {
 4796            proto::update_followers::Variant::CreateView(view) => {
 4797                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4798                let should_add_view = this.update(cx, |this, _| {
 4799                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4800                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4801                    } else {
 4802                        anyhow::Ok(false)
 4803                    }
 4804                })??;
 4805
 4806                if should_add_view {
 4807                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4808                }
 4809            }
 4810            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4811                let should_add_view = this.update(cx, |this, _| {
 4812                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4813                        state.active_view_id = update_active_view
 4814                            .view
 4815                            .as_ref()
 4816                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4817
 4818                        if state.active_view_id.is_some_and(|view_id| {
 4819                            !state.items_by_leader_view_id.contains_key(&view_id)
 4820                        }) {
 4821                            anyhow::Ok(true)
 4822                        } else {
 4823                            anyhow::Ok(false)
 4824                        }
 4825                    } else {
 4826                        anyhow::Ok(false)
 4827                    }
 4828                })??;
 4829
 4830                if should_add_view && let Some(view) = update_active_view.view {
 4831                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4832                }
 4833            }
 4834            proto::update_followers::Variant::UpdateView(update_view) => {
 4835                let variant = update_view.variant.context("missing update view variant")?;
 4836                let id = update_view.id.context("missing update view id")?;
 4837                let mut tasks = Vec::new();
 4838                this.update_in(cx, |this, window, cx| {
 4839                    let project = this.project.clone();
 4840                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4841                        let view_id = ViewId::from_proto(id.clone())?;
 4842                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4843                            tasks.push(item.view.apply_update_proto(
 4844                                &project,
 4845                                variant.clone(),
 4846                                window,
 4847                                cx,
 4848                            ));
 4849                        }
 4850                    }
 4851                    anyhow::Ok(())
 4852                })??;
 4853                try_join_all(tasks).await.log_err();
 4854            }
 4855        }
 4856        this.update_in(cx, |this, window, cx| {
 4857            this.leader_updated(leader_id, window, cx)
 4858        })?;
 4859        Ok(())
 4860    }
 4861
 4862    async fn add_view_from_leader(
 4863        this: WeakEntity<Self>,
 4864        leader_id: PeerId,
 4865        view: &proto::View,
 4866        cx: &mut AsyncWindowContext,
 4867    ) -> Result<()> {
 4868        let this = this.upgrade().context("workspace dropped")?;
 4869
 4870        let Some(id) = view.id.clone() else {
 4871            anyhow::bail!("no id for view");
 4872        };
 4873        let id = ViewId::from_proto(id)?;
 4874        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4875
 4876        let pane = this.update(cx, |this, _cx| {
 4877            let state = this
 4878                .follower_states
 4879                .get(&leader_id.into())
 4880                .context("stopped following")?;
 4881            anyhow::Ok(state.pane().clone())
 4882        })??;
 4883        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4884            let client = this.read(cx).client().clone();
 4885            pane.items().find_map(|item| {
 4886                let item = item.to_followable_item_handle(cx)?;
 4887                if item.remote_id(&client, window, cx) == Some(id) {
 4888                    Some(item)
 4889                } else {
 4890                    None
 4891                }
 4892            })
 4893        })?;
 4894        let item = if let Some(existing_item) = existing_item {
 4895            existing_item
 4896        } else {
 4897            let variant = view.variant.clone();
 4898            anyhow::ensure!(variant.is_some(), "missing view variant");
 4899
 4900            let task = cx.update(|window, cx| {
 4901                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4902            })?;
 4903
 4904            let Some(task) = task else {
 4905                anyhow::bail!(
 4906                    "failed to construct view from leader (maybe from a different version of zed?)"
 4907                );
 4908            };
 4909
 4910            let mut new_item = task.await?;
 4911            pane.update_in(cx, |pane, window, cx| {
 4912                let mut item_to_remove = None;
 4913                for (ix, item) in pane.items().enumerate() {
 4914                    if let Some(item) = item.to_followable_item_handle(cx) {
 4915                        match new_item.dedup(item.as_ref(), window, cx) {
 4916                            Some(item::Dedup::KeepExisting) => {
 4917                                new_item =
 4918                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4919                                break;
 4920                            }
 4921                            Some(item::Dedup::ReplaceExisting) => {
 4922                                item_to_remove = Some((ix, item.item_id()));
 4923                                break;
 4924                            }
 4925                            None => {}
 4926                        }
 4927                    }
 4928                }
 4929
 4930                if let Some((ix, id)) = item_to_remove {
 4931                    pane.remove_item(id, false, false, window, cx);
 4932                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4933                }
 4934            })?;
 4935
 4936            new_item
 4937        };
 4938
 4939        this.update_in(cx, |this, window, cx| {
 4940            let state = this.follower_states.get_mut(&leader_id.into())?;
 4941            item.set_leader_id(Some(leader_id.into()), window, cx);
 4942            state.items_by_leader_view_id.insert(
 4943                id,
 4944                FollowerView {
 4945                    view: item,
 4946                    location: panel_id,
 4947                },
 4948            );
 4949
 4950            Some(())
 4951        })?;
 4952
 4953        Ok(())
 4954    }
 4955
 4956    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4957        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4958            return;
 4959        };
 4960
 4961        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4962            let buffer_entity_id = agent_location.buffer.entity_id();
 4963            let view_id = ViewId {
 4964                creator: CollaboratorId::Agent,
 4965                id: buffer_entity_id.as_u64(),
 4966            };
 4967            follower_state.active_view_id = Some(view_id);
 4968
 4969            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4970                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4971                hash_map::Entry::Vacant(entry) => {
 4972                    let existing_view =
 4973                        follower_state
 4974                            .center_pane
 4975                            .read(cx)
 4976                            .items()
 4977                            .find_map(|item| {
 4978                                let item = item.to_followable_item_handle(cx)?;
 4979                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 4980                                    && item.project_item_model_ids(cx).as_slice()
 4981                                        == [buffer_entity_id]
 4982                                {
 4983                                    Some(item)
 4984                                } else {
 4985                                    None
 4986                                }
 4987                            });
 4988                    let view = existing_view.or_else(|| {
 4989                        agent_location.buffer.upgrade().and_then(|buffer| {
 4990                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4991                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4992                            })?
 4993                            .to_followable_item_handle(cx)
 4994                        })
 4995                    });
 4996
 4997                    view.map(|view| {
 4998                        entry.insert(FollowerView {
 4999                            view,
 5000                            location: None,
 5001                        })
 5002                    })
 5003                }
 5004            };
 5005
 5006            if let Some(item) = item {
 5007                item.view
 5008                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5009                item.view
 5010                    .update_agent_location(agent_location.position, window, cx);
 5011            }
 5012        } else {
 5013            follower_state.active_view_id = None;
 5014        }
 5015
 5016        self.leader_updated(CollaboratorId::Agent, window, cx);
 5017    }
 5018
 5019    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5020        let mut is_project_item = true;
 5021        let mut update = proto::UpdateActiveView::default();
 5022        if window.is_window_active() {
 5023            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5024
 5025            if let Some(item) = active_item
 5026                && item.item_focus_handle(cx).contains_focused(window, cx)
 5027            {
 5028                let leader_id = self
 5029                    .pane_for(&*item)
 5030                    .and_then(|pane| self.leader_for_pane(&pane));
 5031                let leader_peer_id = match leader_id {
 5032                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5033                    Some(CollaboratorId::Agent) | None => None,
 5034                };
 5035
 5036                if let Some(item) = item.to_followable_item_handle(cx) {
 5037                    let id = item
 5038                        .remote_id(&self.app_state.client, window, cx)
 5039                        .map(|id| id.to_proto());
 5040
 5041                    if let Some(id) = id
 5042                        && let Some(variant) = item.to_state_proto(window, cx)
 5043                    {
 5044                        let view = Some(proto::View {
 5045                            id: id.clone(),
 5046                            leader_id: leader_peer_id,
 5047                            variant: Some(variant),
 5048                            panel_id: panel_id.map(|id| id as i32),
 5049                        });
 5050
 5051                        is_project_item = item.is_project_item(window, cx);
 5052                        update = proto::UpdateActiveView {
 5053                            view,
 5054                            // TODO: Remove after version 0.145.x stabilizes.
 5055                            id,
 5056                            leader_id: leader_peer_id,
 5057                        };
 5058                    };
 5059                }
 5060            }
 5061        }
 5062
 5063        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5064        if active_view_id != self.last_active_view_id.as_ref() {
 5065            self.last_active_view_id = active_view_id.cloned();
 5066            self.update_followers(
 5067                is_project_item,
 5068                proto::update_followers::Variant::UpdateActiveView(update),
 5069                window,
 5070                cx,
 5071            );
 5072        }
 5073    }
 5074
 5075    fn active_item_for_followers(
 5076        &self,
 5077        window: &mut Window,
 5078        cx: &mut App,
 5079    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5080        let mut active_item = None;
 5081        let mut panel_id = None;
 5082        for dock in self.all_docks() {
 5083            if dock.focus_handle(cx).contains_focused(window, cx)
 5084                && let Some(panel) = dock.read(cx).active_panel()
 5085                && let Some(pane) = panel.pane(cx)
 5086                && let Some(item) = pane.read(cx).active_item()
 5087            {
 5088                active_item = Some(item);
 5089                panel_id = panel.remote_id();
 5090                break;
 5091            }
 5092        }
 5093
 5094        if active_item.is_none() {
 5095            active_item = self.active_pane().read(cx).active_item();
 5096        }
 5097        (active_item, panel_id)
 5098    }
 5099
 5100    fn update_followers(
 5101        &self,
 5102        project_only: bool,
 5103        update: proto::update_followers::Variant,
 5104        _: &mut Window,
 5105        cx: &mut App,
 5106    ) -> Option<()> {
 5107        // If this update only applies to for followers in the current project,
 5108        // then skip it unless this project is shared. If it applies to all
 5109        // followers, regardless of project, then set `project_id` to none,
 5110        // indicating that it goes to all followers.
 5111        let project_id = if project_only {
 5112            Some(self.project.read(cx).remote_id()?)
 5113        } else {
 5114            None
 5115        };
 5116        self.app_state().workspace_store.update(cx, |store, cx| {
 5117            store.update_followers(project_id, update, cx)
 5118        })
 5119    }
 5120
 5121    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5122        self.follower_states.iter().find_map(|(leader_id, state)| {
 5123            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5124                Some(*leader_id)
 5125            } else {
 5126                None
 5127            }
 5128        })
 5129    }
 5130
 5131    fn leader_updated(
 5132        &mut self,
 5133        leader_id: impl Into<CollaboratorId>,
 5134        window: &mut Window,
 5135        cx: &mut Context<Self>,
 5136    ) -> Option<Box<dyn ItemHandle>> {
 5137        cx.notify();
 5138
 5139        let leader_id = leader_id.into();
 5140        let (panel_id, item) = match leader_id {
 5141            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5142            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5143        };
 5144
 5145        let state = self.follower_states.get(&leader_id)?;
 5146        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5147        let pane;
 5148        if let Some(panel_id) = panel_id {
 5149            pane = self
 5150                .activate_panel_for_proto_id(panel_id, window, cx)?
 5151                .pane(cx)?;
 5152            let state = self.follower_states.get_mut(&leader_id)?;
 5153            state.dock_pane = Some(pane.clone());
 5154        } else {
 5155            pane = state.center_pane.clone();
 5156            let state = self.follower_states.get_mut(&leader_id)?;
 5157            if let Some(dock_pane) = state.dock_pane.take() {
 5158                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5159            }
 5160        }
 5161
 5162        pane.update(cx, |pane, cx| {
 5163            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5164            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5165                pane.activate_item(index, false, false, window, cx);
 5166            } else {
 5167                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5168            }
 5169
 5170            if focus_active_item {
 5171                pane.focus_active_item(window, cx)
 5172            }
 5173        });
 5174
 5175        Some(item)
 5176    }
 5177
 5178    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5179        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5180        let active_view_id = state.active_view_id?;
 5181        Some(
 5182            state
 5183                .items_by_leader_view_id
 5184                .get(&active_view_id)?
 5185                .view
 5186                .boxed_clone(),
 5187        )
 5188    }
 5189
 5190    fn active_item_for_peer(
 5191        &self,
 5192        peer_id: PeerId,
 5193        window: &mut Window,
 5194        cx: &mut Context<Self>,
 5195    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5196        let call = self.active_call()?;
 5197        let room = call.read(cx).room()?.read(cx);
 5198        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5199        let leader_in_this_app;
 5200        let leader_in_this_project;
 5201        match participant.location {
 5202            call::ParticipantLocation::SharedProject { project_id } => {
 5203                leader_in_this_app = true;
 5204                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5205            }
 5206            call::ParticipantLocation::UnsharedProject => {
 5207                leader_in_this_app = true;
 5208                leader_in_this_project = false;
 5209            }
 5210            call::ParticipantLocation::External => {
 5211                leader_in_this_app = false;
 5212                leader_in_this_project = false;
 5213            }
 5214        };
 5215        let state = self.follower_states.get(&peer_id.into())?;
 5216        let mut item_to_activate = None;
 5217        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5218            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5219                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5220            {
 5221                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5222            }
 5223        } else if let Some(shared_screen) =
 5224            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5225        {
 5226            item_to_activate = Some((None, Box::new(shared_screen)));
 5227        }
 5228        item_to_activate
 5229    }
 5230
 5231    fn shared_screen_for_peer(
 5232        &self,
 5233        peer_id: PeerId,
 5234        pane: &Entity<Pane>,
 5235        window: &mut Window,
 5236        cx: &mut App,
 5237    ) -> Option<Entity<SharedScreen>> {
 5238        let call = self.active_call()?;
 5239        let room = call.read(cx).room()?.clone();
 5240        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5241        let track = participant.video_tracks.values().next()?.clone();
 5242        let user = participant.user.clone();
 5243
 5244        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5245            if item.read(cx).peer_id == peer_id {
 5246                return Some(item);
 5247            }
 5248        }
 5249
 5250        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5251    }
 5252
 5253    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5254        if window.is_window_active() {
 5255            self.update_active_view_for_followers(window, cx);
 5256
 5257            if let Some(database_id) = self.database_id {
 5258                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5259                    .detach();
 5260            }
 5261        } else {
 5262            for pane in &self.panes {
 5263                pane.update(cx, |pane, cx| {
 5264                    if let Some(item) = pane.active_item() {
 5265                        item.workspace_deactivated(window, cx);
 5266                    }
 5267                    for item in pane.items() {
 5268                        if matches!(
 5269                            item.workspace_settings(cx).autosave,
 5270                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5271                        ) {
 5272                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5273                                .detach_and_log_err(cx);
 5274                        }
 5275                    }
 5276                });
 5277            }
 5278        }
 5279    }
 5280
 5281    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5282        self.active_call.as_ref().map(|(call, _)| call)
 5283    }
 5284
 5285    fn on_active_call_event(
 5286        &mut self,
 5287        _: &Entity<ActiveCall>,
 5288        event: &call::room::Event,
 5289        window: &mut Window,
 5290        cx: &mut Context<Self>,
 5291    ) {
 5292        match event {
 5293            call::room::Event::ParticipantLocationChanged { participant_id }
 5294            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5295                self.leader_updated(participant_id, window, cx);
 5296            }
 5297            _ => {}
 5298        }
 5299    }
 5300
 5301    pub fn database_id(&self) -> Option<WorkspaceId> {
 5302        self.database_id
 5303    }
 5304
 5305    pub fn session_id(&self) -> Option<String> {
 5306        self.session_id.clone()
 5307    }
 5308
 5309    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5310        let project = self.project().read(cx);
 5311        project
 5312            .visible_worktrees(cx)
 5313            .map(|worktree| worktree.read(cx).abs_path())
 5314            .collect::<Vec<_>>()
 5315    }
 5316
 5317    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5318        match member {
 5319            Member::Axis(PaneAxis { members, .. }) => {
 5320                for child in members.iter() {
 5321                    self.remove_panes(child.clone(), window, cx)
 5322                }
 5323            }
 5324            Member::Pane(pane) => {
 5325                self.force_remove_pane(&pane, &None, window, cx);
 5326            }
 5327        }
 5328    }
 5329
 5330    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5331        self.session_id.take();
 5332        self.serialize_workspace_internal(window, cx)
 5333    }
 5334
 5335    fn force_remove_pane(
 5336        &mut self,
 5337        pane: &Entity<Pane>,
 5338        focus_on: &Option<Entity<Pane>>,
 5339        window: &mut Window,
 5340        cx: &mut Context<Workspace>,
 5341    ) {
 5342        self.panes.retain(|p| p != pane);
 5343        if let Some(focus_on) = focus_on {
 5344            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5345        } else if self.active_pane() == pane {
 5346            self.panes
 5347                .last()
 5348                .unwrap()
 5349                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5350        }
 5351        if self.last_active_center_pane == Some(pane.downgrade()) {
 5352            self.last_active_center_pane = None;
 5353        }
 5354        cx.notify();
 5355    }
 5356
 5357    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5358        if self._schedule_serialize_workspace.is_none() {
 5359            self._schedule_serialize_workspace =
 5360                Some(cx.spawn_in(window, async move |this, cx| {
 5361                    cx.background_executor()
 5362                        .timer(SERIALIZATION_THROTTLE_TIME)
 5363                        .await;
 5364                    this.update_in(cx, |this, window, cx| {
 5365                        this.serialize_workspace_internal(window, cx).detach();
 5366                        this._schedule_serialize_workspace.take();
 5367                    })
 5368                    .log_err();
 5369                }));
 5370        }
 5371    }
 5372
 5373    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5374        let Some(database_id) = self.database_id() else {
 5375            return Task::ready(());
 5376        };
 5377
 5378        fn serialize_pane_handle(
 5379            pane_handle: &Entity<Pane>,
 5380            window: &mut Window,
 5381            cx: &mut App,
 5382        ) -> SerializedPane {
 5383            let (items, active, pinned_count) = {
 5384                let pane = pane_handle.read(cx);
 5385                let active_item_id = pane.active_item().map(|item| item.item_id());
 5386                (
 5387                    pane.items()
 5388                        .filter_map(|handle| {
 5389                            let handle = handle.to_serializable_item_handle(cx)?;
 5390
 5391                            Some(SerializedItem {
 5392                                kind: Arc::from(handle.serialized_item_kind()),
 5393                                item_id: handle.item_id().as_u64(),
 5394                                active: Some(handle.item_id()) == active_item_id,
 5395                                preview: pane.is_active_preview_item(handle.item_id()),
 5396                            })
 5397                        })
 5398                        .collect::<Vec<_>>(),
 5399                    pane.has_focus(window, cx),
 5400                    pane.pinned_count(),
 5401                )
 5402            };
 5403
 5404            SerializedPane::new(items, active, pinned_count)
 5405        }
 5406
 5407        fn build_serialized_pane_group(
 5408            pane_group: &Member,
 5409            window: &mut Window,
 5410            cx: &mut App,
 5411        ) -> SerializedPaneGroup {
 5412            match pane_group {
 5413                Member::Axis(PaneAxis {
 5414                    axis,
 5415                    members,
 5416                    flexes,
 5417                    bounding_boxes: _,
 5418                }) => SerializedPaneGroup::Group {
 5419                    axis: SerializedAxis(*axis),
 5420                    children: members
 5421                        .iter()
 5422                        .map(|member| build_serialized_pane_group(member, window, cx))
 5423                        .collect::<Vec<_>>(),
 5424                    flexes: Some(flexes.lock().clone()),
 5425                },
 5426                Member::Pane(pane_handle) => {
 5427                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5428                }
 5429            }
 5430        }
 5431
 5432        fn build_serialized_docks(
 5433            this: &Workspace,
 5434            window: &mut Window,
 5435            cx: &mut App,
 5436        ) -> DockStructure {
 5437            let left_dock = this.left_dock.read(cx);
 5438            let left_visible = left_dock.is_open();
 5439            let left_active_panel = left_dock
 5440                .active_panel()
 5441                .map(|panel| panel.persistent_name().to_string());
 5442            let left_dock_zoom = left_dock
 5443                .active_panel()
 5444                .map(|panel| panel.is_zoomed(window, cx))
 5445                .unwrap_or(false);
 5446
 5447            let right_dock = this.right_dock.read(cx);
 5448            let right_visible = right_dock.is_open();
 5449            let right_active_panel = right_dock
 5450                .active_panel()
 5451                .map(|panel| panel.persistent_name().to_string());
 5452            let right_dock_zoom = right_dock
 5453                .active_panel()
 5454                .map(|panel| panel.is_zoomed(window, cx))
 5455                .unwrap_or(false);
 5456
 5457            let bottom_dock = this.bottom_dock.read(cx);
 5458            let bottom_visible = bottom_dock.is_open();
 5459            let bottom_active_panel = bottom_dock
 5460                .active_panel()
 5461                .map(|panel| panel.persistent_name().to_string());
 5462            let bottom_dock_zoom = bottom_dock
 5463                .active_panel()
 5464                .map(|panel| panel.is_zoomed(window, cx))
 5465                .unwrap_or(false);
 5466
 5467            DockStructure {
 5468                left: DockData {
 5469                    visible: left_visible,
 5470                    active_panel: left_active_panel,
 5471                    zoom: left_dock_zoom,
 5472                },
 5473                right: DockData {
 5474                    visible: right_visible,
 5475                    active_panel: right_active_panel,
 5476                    zoom: right_dock_zoom,
 5477                },
 5478                bottom: DockData {
 5479                    visible: bottom_visible,
 5480                    active_panel: bottom_active_panel,
 5481                    zoom: bottom_dock_zoom,
 5482                },
 5483            }
 5484        }
 5485
 5486        match self.serialize_workspace_location(cx) {
 5487            WorkspaceLocation::Location(location, paths) => {
 5488                let breakpoints = self.project.update(cx, |project, cx| {
 5489                    project
 5490                        .breakpoint_store()
 5491                        .read(cx)
 5492                        .all_source_breakpoints(cx)
 5493                });
 5494                let user_toolchains = self
 5495                    .project
 5496                    .read(cx)
 5497                    .user_toolchains(cx)
 5498                    .unwrap_or_default();
 5499
 5500                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5501                let docks = build_serialized_docks(self, window, cx);
 5502                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5503
 5504                let serialized_workspace = SerializedWorkspace {
 5505                    id: database_id,
 5506                    location,
 5507                    paths,
 5508                    center_group,
 5509                    window_bounds,
 5510                    display: Default::default(),
 5511                    docks,
 5512                    centered_layout: self.centered_layout,
 5513                    session_id: self.session_id.clone(),
 5514                    breakpoints,
 5515                    window_id: Some(window.window_handle().window_id().as_u64()),
 5516                    user_toolchains,
 5517                };
 5518
 5519                window.spawn(cx, async move |_| {
 5520                    persistence::DB.save_workspace(serialized_workspace).await;
 5521                })
 5522            }
 5523            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5524                persistence::DB
 5525                    .set_session_id(database_id, None)
 5526                    .await
 5527                    .log_err();
 5528            }),
 5529            WorkspaceLocation::None => Task::ready(()),
 5530        }
 5531    }
 5532
 5533    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5534        let paths = PathList::new(&self.root_paths(cx));
 5535        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5536            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5537        } else if self.project.read(cx).is_local() {
 5538            if !paths.is_empty() {
 5539                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5540            } else {
 5541                WorkspaceLocation::DetachFromSession
 5542            }
 5543        } else {
 5544            WorkspaceLocation::None
 5545        }
 5546    }
 5547
 5548    fn update_history(&self, cx: &mut App) {
 5549        let Some(id) = self.database_id() else {
 5550            return;
 5551        };
 5552        if !self.project.read(cx).is_local() {
 5553            return;
 5554        }
 5555        if let Some(manager) = HistoryManager::global(cx) {
 5556            let paths = PathList::new(&self.root_paths(cx));
 5557            manager.update(cx, |this, cx| {
 5558                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5559            });
 5560        }
 5561    }
 5562
 5563    async fn serialize_items(
 5564        this: &WeakEntity<Self>,
 5565        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5566        cx: &mut AsyncWindowContext,
 5567    ) -> Result<()> {
 5568        const CHUNK_SIZE: usize = 200;
 5569
 5570        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5571
 5572        while let Some(items_received) = serializable_items.next().await {
 5573            let unique_items =
 5574                items_received
 5575                    .into_iter()
 5576                    .fold(HashMap::default(), |mut acc, item| {
 5577                        acc.entry(item.item_id()).or_insert(item);
 5578                        acc
 5579                    });
 5580
 5581            // We use into_iter() here so that the references to the items are moved into
 5582            // the tasks and not kept alive while we're sleeping.
 5583            for (_, item) in unique_items.into_iter() {
 5584                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5585                    item.serialize(workspace, false, window, cx)
 5586                }) {
 5587                    cx.background_spawn(async move { task.await.log_err() })
 5588                        .detach();
 5589                }
 5590            }
 5591
 5592            cx.background_executor()
 5593                .timer(SERIALIZATION_THROTTLE_TIME)
 5594                .await;
 5595        }
 5596
 5597        Ok(())
 5598    }
 5599
 5600    pub(crate) fn enqueue_item_serialization(
 5601        &mut self,
 5602        item: Box<dyn SerializableItemHandle>,
 5603    ) -> Result<()> {
 5604        self.serializable_items_tx
 5605            .unbounded_send(item)
 5606            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5607    }
 5608
 5609    pub(crate) fn load_workspace(
 5610        serialized_workspace: SerializedWorkspace,
 5611        paths_to_open: Vec<Option<ProjectPath>>,
 5612        window: &mut Window,
 5613        cx: &mut Context<Workspace>,
 5614    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5615        cx.spawn_in(window, async move |workspace, cx| {
 5616            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5617
 5618            let mut center_group = None;
 5619            let mut center_items = None;
 5620
 5621            // Traverse the splits tree and add to things
 5622            if let Some((group, active_pane, items)) = serialized_workspace
 5623                .center_group
 5624                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5625                .await
 5626            {
 5627                center_items = Some(items);
 5628                center_group = Some((group, active_pane))
 5629            }
 5630
 5631            let mut items_by_project_path = HashMap::default();
 5632            let mut item_ids_by_kind = HashMap::default();
 5633            let mut all_deserialized_items = Vec::default();
 5634            cx.update(|_, cx| {
 5635                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5636                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5637                        item_ids_by_kind
 5638                            .entry(serializable_item_handle.serialized_item_kind())
 5639                            .or_insert(Vec::new())
 5640                            .push(item.item_id().as_u64() as ItemId);
 5641                    }
 5642
 5643                    if let Some(project_path) = item.project_path(cx) {
 5644                        items_by_project_path.insert(project_path, item.clone());
 5645                    }
 5646                    all_deserialized_items.push(item);
 5647                }
 5648            })?;
 5649
 5650            let opened_items = paths_to_open
 5651                .into_iter()
 5652                .map(|path_to_open| {
 5653                    path_to_open
 5654                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5655                })
 5656                .collect::<Vec<_>>();
 5657
 5658            // Remove old panes from workspace panes list
 5659            workspace.update_in(cx, |workspace, window, cx| {
 5660                if let Some((center_group, active_pane)) = center_group {
 5661                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5662
 5663                    // Swap workspace center group
 5664                    workspace.center = PaneGroup::with_root(center_group);
 5665                    if let Some(active_pane) = active_pane {
 5666                        workspace.set_active_pane(&active_pane, window, cx);
 5667                        cx.focus_self(window);
 5668                    } else {
 5669                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5670                    }
 5671                }
 5672
 5673                let docks = serialized_workspace.docks;
 5674
 5675                for (dock, serialized_dock) in [
 5676                    (&mut workspace.right_dock, docks.right),
 5677                    (&mut workspace.left_dock, docks.left),
 5678                    (&mut workspace.bottom_dock, docks.bottom),
 5679                ]
 5680                .iter_mut()
 5681                {
 5682                    dock.update(cx, |dock, cx| {
 5683                        dock.serialized_dock = Some(serialized_dock.clone());
 5684                        dock.restore_state(window, cx);
 5685                    });
 5686                }
 5687
 5688                cx.notify();
 5689            })?;
 5690
 5691            let _ = project
 5692                .update(cx, |project, cx| {
 5693                    project
 5694                        .breakpoint_store()
 5695                        .update(cx, |breakpoint_store, cx| {
 5696                            breakpoint_store
 5697                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5698                        })
 5699                })?
 5700                .await;
 5701
 5702            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5703            // after loading the items, we might have different items and in order to avoid
 5704            // the database filling up, we delete items that haven't been loaded now.
 5705            //
 5706            // The items that have been loaded, have been saved after they've been added to the workspace.
 5707            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5708                item_ids_by_kind
 5709                    .into_iter()
 5710                    .map(|(item_kind, loaded_items)| {
 5711                        SerializableItemRegistry::cleanup(
 5712                            item_kind,
 5713                            serialized_workspace.id,
 5714                            loaded_items,
 5715                            window,
 5716                            cx,
 5717                        )
 5718                        .log_err()
 5719                    })
 5720                    .collect::<Vec<_>>()
 5721            })?;
 5722
 5723            futures::future::join_all(clean_up_tasks).await;
 5724
 5725            workspace
 5726                .update_in(cx, |workspace, window, cx| {
 5727                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5728                    workspace.serialize_workspace_internal(window, cx).detach();
 5729
 5730                    // Ensure that we mark the window as edited if we did load dirty items
 5731                    workspace.update_window_edited(window, cx);
 5732                })
 5733                .ok();
 5734
 5735            Ok(opened_items)
 5736        })
 5737    }
 5738
 5739    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5740        self.add_workspace_actions_listeners(div, window, cx)
 5741            .on_action(cx.listener(
 5742                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5743                    for action in &action_sequence.0 {
 5744                        window.dispatch_action(action.boxed_clone(), cx);
 5745                    }
 5746                },
 5747            ))
 5748            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5749            .on_action(cx.listener(Self::close_all_items_and_panes))
 5750            .on_action(cx.listener(Self::save_all))
 5751            .on_action(cx.listener(Self::send_keystrokes))
 5752            .on_action(cx.listener(Self::add_folder_to_project))
 5753            .on_action(cx.listener(Self::follow_next_collaborator))
 5754            .on_action(cx.listener(Self::close_window))
 5755            .on_action(cx.listener(Self::activate_pane_at_index))
 5756            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5757            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5758            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5759            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5760                let pane = workspace.active_pane().clone();
 5761                workspace.unfollow_in_pane(&pane, window, cx);
 5762            }))
 5763            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5764                workspace
 5765                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5766                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5767            }))
 5768            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5769                workspace
 5770                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5771                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5772            }))
 5773            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5774                workspace
 5775                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5776                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5777            }))
 5778            .on_action(
 5779                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5780                    workspace.activate_previous_pane(window, cx)
 5781                }),
 5782            )
 5783            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5784                workspace.activate_next_pane(window, cx)
 5785            }))
 5786            .on_action(
 5787                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5788                    workspace.activate_next_window(cx)
 5789                }),
 5790            )
 5791            .on_action(
 5792                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5793                    workspace.activate_previous_window(cx)
 5794                }),
 5795            )
 5796            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5797                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5798            }))
 5799            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5800                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5801            }))
 5802            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5803                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5804            }))
 5805            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5806                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5807            }))
 5808            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5809                workspace.activate_next_pane(window, cx)
 5810            }))
 5811            .on_action(cx.listener(
 5812                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5813                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5814                },
 5815            ))
 5816            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5817                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5818            }))
 5819            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5820                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5821            }))
 5822            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5823                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5824            }))
 5825            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5826                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5827            }))
 5828            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5829                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5830                    SplitDirection::Down,
 5831                    SplitDirection::Up,
 5832                    SplitDirection::Right,
 5833                    SplitDirection::Left,
 5834                ];
 5835                for dir in DIRECTION_PRIORITY {
 5836                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 5837                        workspace.swap_pane_in_direction(dir, cx);
 5838                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 5839                        break;
 5840                    }
 5841                }
 5842            }))
 5843            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5844                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5845            }))
 5846            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5847                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5848            }))
 5849            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5850                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5851            }))
 5852            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5853                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5854            }))
 5855            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5856                this.toggle_dock(DockPosition::Left, window, cx);
 5857            }))
 5858            .on_action(cx.listener(
 5859                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5860                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5861                },
 5862            ))
 5863            .on_action(cx.listener(
 5864                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5865                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5866                },
 5867            ))
 5868            .on_action(cx.listener(
 5869                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5870                    if !workspace.close_active_dock(window, cx) {
 5871                        cx.propagate();
 5872                    }
 5873                },
 5874            ))
 5875            .on_action(
 5876                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5877                    workspace.close_all_docks(window, cx);
 5878                }),
 5879            )
 5880            .on_action(cx.listener(Self::toggle_all_docks))
 5881            .on_action(cx.listener(
 5882                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5883                    workspace.clear_all_notifications(cx);
 5884                },
 5885            ))
 5886            .on_action(cx.listener(
 5887                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 5888                    workspace.clear_navigation_history(window, cx);
 5889                },
 5890            ))
 5891            .on_action(cx.listener(
 5892                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5893                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5894                        workspace.suppress_notification(&notification_id, cx);
 5895                    }
 5896                },
 5897            ))
 5898            .on_action(cx.listener(
 5899                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5900                    workspace.reopen_closed_item(window, cx).detach();
 5901                },
 5902            ))
 5903            .on_action(cx.listener(
 5904                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5905                    for dock in workspace.all_docks() {
 5906                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5907                            let Some(panel) = dock.read(cx).active_panel() else {
 5908                                return;
 5909                            };
 5910
 5911                            // Set to `None`, then the size will fall back to the default.
 5912                            panel.clone().set_size(None, window, cx);
 5913
 5914                            return;
 5915                        }
 5916                    }
 5917                },
 5918            ))
 5919            .on_action(cx.listener(
 5920                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5921                    for dock in workspace.all_docks() {
 5922                        if let Some(panel) = dock.read(cx).visible_panel() {
 5923                            // Set to `None`, then the size will fall back to the default.
 5924                            panel.clone().set_size(None, window, cx);
 5925                        }
 5926                    }
 5927                },
 5928            ))
 5929            .on_action(cx.listener(
 5930                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5931                    adjust_active_dock_size_by_px(
 5932                        px_with_ui_font_fallback(act.px, cx),
 5933                        workspace,
 5934                        window,
 5935                        cx,
 5936                    );
 5937                },
 5938            ))
 5939            .on_action(cx.listener(
 5940                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5941                    adjust_active_dock_size_by_px(
 5942                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5943                        workspace,
 5944                        window,
 5945                        cx,
 5946                    );
 5947                },
 5948            ))
 5949            .on_action(cx.listener(
 5950                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5951                    adjust_open_docks_size_by_px(
 5952                        px_with_ui_font_fallback(act.px, cx),
 5953                        workspace,
 5954                        window,
 5955                        cx,
 5956                    );
 5957                },
 5958            ))
 5959            .on_action(cx.listener(
 5960                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5961                    adjust_open_docks_size_by_px(
 5962                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5963                        workspace,
 5964                        window,
 5965                        cx,
 5966                    );
 5967                },
 5968            ))
 5969            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5970            .on_action(cx.listener(
 5971                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 5972                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 5973                        let dock = active_dock.read(cx);
 5974                        if let Some(active_panel) = dock.active_panel() {
 5975                            if active_panel.pane(cx).is_none() {
 5976                                let mut recent_pane: Option<Entity<Pane>> = None;
 5977                                let mut recent_timestamp = 0;
 5978                                for pane_handle in workspace.panes() {
 5979                                    let pane = pane_handle.read(cx);
 5980                                    for entry in pane.activation_history() {
 5981                                        if entry.timestamp > recent_timestamp {
 5982                                            recent_timestamp = entry.timestamp;
 5983                                            recent_pane = Some(pane_handle.clone());
 5984                                        }
 5985                                    }
 5986                                }
 5987
 5988                                if let Some(pane) = recent_pane {
 5989                                    pane.update(cx, |pane, cx| {
 5990                                        let current_index = pane.active_item_index();
 5991                                        let items_len = pane.items_len();
 5992                                        if items_len > 0 {
 5993                                            let next_index = if current_index + 1 < items_len {
 5994                                                current_index + 1
 5995                                            } else {
 5996                                                0
 5997                                            };
 5998                                            pane.activate_item(
 5999                                                next_index, false, false, window, cx,
 6000                                            );
 6001                                        }
 6002                                    });
 6003                                    return;
 6004                                }
 6005                            }
 6006                        }
 6007                    }
 6008                    cx.propagate();
 6009                },
 6010            ))
 6011            .on_action(cx.listener(
 6012                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6013                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6014                        let dock = active_dock.read(cx);
 6015                        if let Some(active_panel) = dock.active_panel() {
 6016                            if active_panel.pane(cx).is_none() {
 6017                                let mut recent_pane: Option<Entity<Pane>> = None;
 6018                                let mut recent_timestamp = 0;
 6019                                for pane_handle in workspace.panes() {
 6020                                    let pane = pane_handle.read(cx);
 6021                                    for entry in pane.activation_history() {
 6022                                        if entry.timestamp > recent_timestamp {
 6023                                            recent_timestamp = entry.timestamp;
 6024                                            recent_pane = Some(pane_handle.clone());
 6025                                        }
 6026                                    }
 6027                                }
 6028
 6029                                if let Some(pane) = recent_pane {
 6030                                    pane.update(cx, |pane, cx| {
 6031                                        let current_index = pane.active_item_index();
 6032                                        let items_len = pane.items_len();
 6033                                        if items_len > 0 {
 6034                                            let prev_index = if current_index > 0 {
 6035                                                current_index - 1
 6036                                            } else {
 6037                                                items_len.saturating_sub(1)
 6038                                            };
 6039                                            pane.activate_item(
 6040                                                prev_index, false, false, window, cx,
 6041                                            );
 6042                                        }
 6043                                    });
 6044                                    return;
 6045                                }
 6046                            }
 6047                        }
 6048                    }
 6049                    cx.propagate();
 6050                },
 6051            ))
 6052            .on_action(cx.listener(Workspace::cancel))
 6053    }
 6054
 6055    #[cfg(any(test, feature = "test-support"))]
 6056    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6057        use node_runtime::NodeRuntime;
 6058        use session::Session;
 6059
 6060        let client = project.read(cx).client();
 6061        let user_store = project.read(cx).user_store();
 6062        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6063        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6064        window.activate_window();
 6065        let app_state = Arc::new(AppState {
 6066            languages: project.read(cx).languages().clone(),
 6067            workspace_store,
 6068            client,
 6069            user_store,
 6070            fs: project.read(cx).fs().clone(),
 6071            build_window_options: |_, _| Default::default(),
 6072            node_runtime: NodeRuntime::unavailable(),
 6073            session,
 6074        });
 6075        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6076        workspace
 6077            .active_pane
 6078            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 6079        workspace
 6080    }
 6081
 6082    pub fn register_action<A: Action>(
 6083        &mut self,
 6084        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6085    ) -> &mut Self {
 6086        let callback = Arc::new(callback);
 6087
 6088        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6089            let callback = callback.clone();
 6090            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6091                (callback)(workspace, event, window, cx)
 6092            }))
 6093        }));
 6094        self
 6095    }
 6096    pub fn register_action_renderer(
 6097        &mut self,
 6098        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6099    ) -> &mut Self {
 6100        self.workspace_actions.push(Box::new(callback));
 6101        self
 6102    }
 6103
 6104    fn add_workspace_actions_listeners(
 6105        &self,
 6106        mut div: Div,
 6107        window: &mut Window,
 6108        cx: &mut Context<Self>,
 6109    ) -> Div {
 6110        for action in self.workspace_actions.iter() {
 6111            div = (action)(div, self, window, cx)
 6112        }
 6113        div
 6114    }
 6115
 6116    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6117        self.modal_layer.read(cx).has_active_modal()
 6118    }
 6119
 6120    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6121        self.modal_layer.read(cx).active_modal()
 6122    }
 6123
 6124    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6125    where
 6126        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6127    {
 6128        self.modal_layer.update(cx, |modal_layer, cx| {
 6129            modal_layer.toggle_modal(window, cx, build)
 6130        })
 6131    }
 6132
 6133    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6134        self.modal_layer
 6135            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6136    }
 6137
 6138    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6139        self.toast_layer
 6140            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6141    }
 6142
 6143    pub fn toggle_centered_layout(
 6144        &mut self,
 6145        _: &ToggleCenteredLayout,
 6146        _: &mut Window,
 6147        cx: &mut Context<Self>,
 6148    ) {
 6149        self.centered_layout = !self.centered_layout;
 6150        if let Some(database_id) = self.database_id() {
 6151            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6152                .detach_and_log_err(cx);
 6153        }
 6154        cx.notify();
 6155    }
 6156
 6157    fn adjust_padding(padding: Option<f32>) -> f32 {
 6158        padding
 6159            .unwrap_or(CenteredPaddingSettings::default().0)
 6160            .clamp(
 6161                CenteredPaddingSettings::MIN_PADDING,
 6162                CenteredPaddingSettings::MAX_PADDING,
 6163            )
 6164    }
 6165
 6166    fn render_dock(
 6167        &self,
 6168        position: DockPosition,
 6169        dock: &Entity<Dock>,
 6170        window: &mut Window,
 6171        cx: &mut App,
 6172    ) -> Option<Div> {
 6173        if self.zoomed_position == Some(position) {
 6174            return None;
 6175        }
 6176
 6177        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6178            let pane = panel.pane(cx)?;
 6179            let follower_states = &self.follower_states;
 6180            leader_border_for_pane(follower_states, &pane, window, cx)
 6181        });
 6182
 6183        Some(
 6184            div()
 6185                .flex()
 6186                .flex_none()
 6187                .overflow_hidden()
 6188                .child(dock.clone())
 6189                .children(leader_border),
 6190        )
 6191    }
 6192
 6193    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6194        window.root().flatten()
 6195    }
 6196
 6197    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6198        self.zoomed.as_ref()
 6199    }
 6200
 6201    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6202        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6203            return;
 6204        };
 6205        let windows = cx.windows();
 6206        let next_window =
 6207            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6208                || {
 6209                    windows
 6210                        .iter()
 6211                        .cycle()
 6212                        .skip_while(|window| window.window_id() != current_window_id)
 6213                        .nth(1)
 6214                },
 6215            );
 6216
 6217        if let Some(window) = next_window {
 6218            window
 6219                .update(cx, |_, window, _| window.activate_window())
 6220                .ok();
 6221        }
 6222    }
 6223
 6224    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6225        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6226            return;
 6227        };
 6228        let windows = cx.windows();
 6229        let prev_window =
 6230            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6231                || {
 6232                    windows
 6233                        .iter()
 6234                        .rev()
 6235                        .cycle()
 6236                        .skip_while(|window| window.window_id() != current_window_id)
 6237                        .nth(1)
 6238                },
 6239            );
 6240
 6241        if let Some(window) = prev_window {
 6242            window
 6243                .update(cx, |_, window, _| window.activate_window())
 6244                .ok();
 6245        }
 6246    }
 6247
 6248    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6249        if cx.stop_active_drag(window) {
 6250        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6251            dismiss_app_notification(&notification_id, cx);
 6252        } else {
 6253            cx.propagate();
 6254        }
 6255    }
 6256
 6257    fn adjust_dock_size_by_px(
 6258        &mut self,
 6259        panel_size: Pixels,
 6260        dock_pos: DockPosition,
 6261        px: Pixels,
 6262        window: &mut Window,
 6263        cx: &mut Context<Self>,
 6264    ) {
 6265        match dock_pos {
 6266            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6267            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6268            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6269        }
 6270    }
 6271
 6272    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6273        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6274
 6275        self.left_dock.update(cx, |left_dock, cx| {
 6276            if WorkspaceSettings::get_global(cx)
 6277                .resize_all_panels_in_dock
 6278                .contains(&DockPosition::Left)
 6279            {
 6280                left_dock.resize_all_panels(Some(size), window, cx);
 6281            } else {
 6282                left_dock.resize_active_panel(Some(size), window, cx);
 6283            }
 6284        });
 6285    }
 6286
 6287    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6288        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6289        self.left_dock.read_with(cx, |left_dock, cx| {
 6290            let left_dock_size = left_dock
 6291                .active_panel_size(window, cx)
 6292                .unwrap_or(Pixels::ZERO);
 6293            if left_dock_size + size > self.bounds.right() {
 6294                size = self.bounds.right() - left_dock_size
 6295            }
 6296        });
 6297        self.right_dock.update(cx, |right_dock, cx| {
 6298            if WorkspaceSettings::get_global(cx)
 6299                .resize_all_panels_in_dock
 6300                .contains(&DockPosition::Right)
 6301            {
 6302                right_dock.resize_all_panels(Some(size), window, cx);
 6303            } else {
 6304                right_dock.resize_active_panel(Some(size), window, cx);
 6305            }
 6306        });
 6307    }
 6308
 6309    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6310        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6311        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6312            if WorkspaceSettings::get_global(cx)
 6313                .resize_all_panels_in_dock
 6314                .contains(&DockPosition::Bottom)
 6315            {
 6316                bottom_dock.resize_all_panels(Some(size), window, cx);
 6317            } else {
 6318                bottom_dock.resize_active_panel(Some(size), window, cx);
 6319            }
 6320        });
 6321    }
 6322
 6323    fn toggle_edit_predictions_all_files(
 6324        &mut self,
 6325        _: &ToggleEditPrediction,
 6326        _window: &mut Window,
 6327        cx: &mut Context<Self>,
 6328    ) {
 6329        let fs = self.project().read(cx).fs().clone();
 6330        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6331        update_settings_file(fs, cx, move |file, _| {
 6332            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6333        });
 6334    }
 6335}
 6336
 6337fn leader_border_for_pane(
 6338    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6339    pane: &Entity<Pane>,
 6340    _: &Window,
 6341    cx: &App,
 6342) -> Option<Div> {
 6343    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6344        if state.pane() == pane {
 6345            Some((*leader_id, state))
 6346        } else {
 6347            None
 6348        }
 6349    })?;
 6350
 6351    let mut leader_color = match leader_id {
 6352        CollaboratorId::PeerId(leader_peer_id) => {
 6353            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6354            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6355
 6356            cx.theme()
 6357                .players()
 6358                .color_for_participant(leader.participant_index.0)
 6359                .cursor
 6360        }
 6361        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6362    };
 6363    leader_color.fade_out(0.3);
 6364    Some(
 6365        div()
 6366            .absolute()
 6367            .size_full()
 6368            .left_0()
 6369            .top_0()
 6370            .border_2()
 6371            .border_color(leader_color),
 6372    )
 6373}
 6374
 6375fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6376    ZED_WINDOW_POSITION
 6377        .zip(*ZED_WINDOW_SIZE)
 6378        .map(|(position, size)| Bounds {
 6379            origin: position,
 6380            size,
 6381        })
 6382}
 6383
 6384fn open_items(
 6385    serialized_workspace: Option<SerializedWorkspace>,
 6386    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6387    window: &mut Window,
 6388    cx: &mut Context<Workspace>,
 6389) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6390    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6391        Workspace::load_workspace(
 6392            serialized_workspace,
 6393            project_paths_to_open
 6394                .iter()
 6395                .map(|(_, project_path)| project_path)
 6396                .cloned()
 6397                .collect(),
 6398            window,
 6399            cx,
 6400        )
 6401    });
 6402
 6403    cx.spawn_in(window, async move |workspace, cx| {
 6404        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6405
 6406        if let Some(restored_items) = restored_items {
 6407            let restored_items = restored_items.await?;
 6408
 6409            let restored_project_paths = restored_items
 6410                .iter()
 6411                .filter_map(|item| {
 6412                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6413                        .ok()
 6414                        .flatten()
 6415                })
 6416                .collect::<HashSet<_>>();
 6417
 6418            for restored_item in restored_items {
 6419                opened_items.push(restored_item.map(Ok));
 6420            }
 6421
 6422            project_paths_to_open
 6423                .iter_mut()
 6424                .for_each(|(_, project_path)| {
 6425                    if let Some(project_path_to_open) = project_path
 6426                        && restored_project_paths.contains(project_path_to_open)
 6427                    {
 6428                        *project_path = None;
 6429                    }
 6430                });
 6431        } else {
 6432            for _ in 0..project_paths_to_open.len() {
 6433                opened_items.push(None);
 6434            }
 6435        }
 6436        assert!(opened_items.len() == project_paths_to_open.len());
 6437
 6438        let tasks =
 6439            project_paths_to_open
 6440                .into_iter()
 6441                .enumerate()
 6442                .map(|(ix, (abs_path, project_path))| {
 6443                    let workspace = workspace.clone();
 6444                    cx.spawn(async move |cx| {
 6445                        let file_project_path = project_path?;
 6446                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6447                            workspace.project().update(cx, |project, cx| {
 6448                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6449                            })
 6450                        });
 6451
 6452                        // We only want to open file paths here. If one of the items
 6453                        // here is a directory, it was already opened further above
 6454                        // with a `find_or_create_worktree`.
 6455                        if let Ok(task) = abs_path_task
 6456                            && task.await.is_none_or(|p| p.is_file())
 6457                        {
 6458                            return Some((
 6459                                ix,
 6460                                workspace
 6461                                    .update_in(cx, |workspace, window, cx| {
 6462                                        workspace.open_path(
 6463                                            file_project_path,
 6464                                            None,
 6465                                            true,
 6466                                            window,
 6467                                            cx,
 6468                                        )
 6469                                    })
 6470                                    .log_err()?
 6471                                    .await,
 6472                            ));
 6473                        }
 6474                        None
 6475                    })
 6476                });
 6477
 6478        let tasks = tasks.collect::<Vec<_>>();
 6479
 6480        let tasks = futures::future::join_all(tasks);
 6481        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6482            opened_items[ix] = Some(path_open_result);
 6483        }
 6484
 6485        Ok(opened_items)
 6486    })
 6487}
 6488
 6489enum ActivateInDirectionTarget {
 6490    Pane(Entity<Pane>),
 6491    Dock(Entity<Dock>),
 6492}
 6493
 6494fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6495    workspace
 6496        .update(cx, |workspace, _, cx| {
 6497            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6498                struct DatabaseFailedNotification;
 6499
 6500                workspace.show_notification(
 6501                    NotificationId::unique::<DatabaseFailedNotification>(),
 6502                    cx,
 6503                    |cx| {
 6504                        cx.new(|cx| {
 6505                            MessageNotification::new("Failed to load the database file.", cx)
 6506                                .primary_message("File an Issue")
 6507                                .primary_icon(IconName::Plus)
 6508                                .primary_on_click(|window, cx| {
 6509                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6510                                })
 6511                        })
 6512                    },
 6513                );
 6514            }
 6515        })
 6516        .log_err();
 6517}
 6518
 6519fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6520    if val == 0 {
 6521        ThemeSettings::get_global(cx).ui_font_size(cx)
 6522    } else {
 6523        px(val as f32)
 6524    }
 6525}
 6526
 6527fn adjust_active_dock_size_by_px(
 6528    px: Pixels,
 6529    workspace: &mut Workspace,
 6530    window: &mut Window,
 6531    cx: &mut Context<Workspace>,
 6532) {
 6533    let Some(active_dock) = workspace
 6534        .all_docks()
 6535        .into_iter()
 6536        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6537    else {
 6538        return;
 6539    };
 6540    let dock = active_dock.read(cx);
 6541    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6542        return;
 6543    };
 6544    let dock_pos = dock.position();
 6545    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6546}
 6547
 6548fn adjust_open_docks_size_by_px(
 6549    px: Pixels,
 6550    workspace: &mut Workspace,
 6551    window: &mut Window,
 6552    cx: &mut Context<Workspace>,
 6553) {
 6554    let docks = workspace
 6555        .all_docks()
 6556        .into_iter()
 6557        .filter_map(|dock| {
 6558            if dock.read(cx).is_open() {
 6559                let dock = dock.read(cx);
 6560                let panel_size = dock.active_panel_size(window, cx)?;
 6561                let dock_pos = dock.position();
 6562                Some((panel_size, dock_pos, px))
 6563            } else {
 6564                None
 6565            }
 6566        })
 6567        .collect::<Vec<_>>();
 6568
 6569    docks
 6570        .into_iter()
 6571        .for_each(|(panel_size, dock_pos, offset)| {
 6572            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6573        });
 6574}
 6575
 6576impl Focusable for Workspace {
 6577    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6578        self.active_pane.focus_handle(cx)
 6579    }
 6580}
 6581
 6582#[derive(Clone)]
 6583struct DraggedDock(DockPosition);
 6584
 6585impl Render for DraggedDock {
 6586    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6587        gpui::Empty
 6588    }
 6589}
 6590
 6591impl Render for Workspace {
 6592    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6593        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6594        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6595            log::info!("Rendered first frame");
 6596        }
 6597        let mut context = KeyContext::new_with_defaults();
 6598        context.add("Workspace");
 6599        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6600        if let Some(status) = self
 6601            .debugger_provider
 6602            .as_ref()
 6603            .and_then(|provider| provider.active_thread_state(cx))
 6604        {
 6605            match status {
 6606                ThreadStatus::Running | ThreadStatus::Stepping => {
 6607                    context.add("debugger_running");
 6608                }
 6609                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6610                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6611            }
 6612        }
 6613
 6614        if self.left_dock.read(cx).is_open() {
 6615            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6616                context.set("left_dock", active_panel.panel_key());
 6617            }
 6618        }
 6619
 6620        if self.right_dock.read(cx).is_open() {
 6621            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6622                context.set("right_dock", active_panel.panel_key());
 6623            }
 6624        }
 6625
 6626        if self.bottom_dock.read(cx).is_open() {
 6627            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6628                context.set("bottom_dock", active_panel.panel_key());
 6629            }
 6630        }
 6631
 6632        let centered_layout = self.centered_layout
 6633            && self.center.panes().len() == 1
 6634            && self.active_item(cx).is_some();
 6635        let render_padding = |size| {
 6636            (size > 0.0).then(|| {
 6637                div()
 6638                    .h_full()
 6639                    .w(relative(size))
 6640                    .bg(cx.theme().colors().editor_background)
 6641                    .border_color(cx.theme().colors().pane_group_border)
 6642            })
 6643        };
 6644        let paddings = if centered_layout {
 6645            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6646            (
 6647                render_padding(Self::adjust_padding(
 6648                    settings.left_padding.map(|padding| padding.0),
 6649                )),
 6650                render_padding(Self::adjust_padding(
 6651                    settings.right_padding.map(|padding| padding.0),
 6652                )),
 6653            )
 6654        } else {
 6655            (None, None)
 6656        };
 6657        let ui_font = theme::setup_ui_font(window, cx);
 6658
 6659        let theme = cx.theme().clone();
 6660        let colors = theme.colors();
 6661        let notification_entities = self
 6662            .notifications
 6663            .iter()
 6664            .map(|(_, notification)| notification.entity_id())
 6665            .collect::<Vec<_>>();
 6666        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6667
 6668        client_side_decorations(
 6669            self.actions(div(), window, cx)
 6670                .key_context(context)
 6671                .relative()
 6672                .size_full()
 6673                .flex()
 6674                .flex_col()
 6675                .font(ui_font)
 6676                .gap_0()
 6677                .justify_start()
 6678                .items_start()
 6679                .text_color(colors.text)
 6680                .overflow_hidden()
 6681                .children(self.titlebar_item.clone())
 6682                .on_modifiers_changed(move |_, _, cx| {
 6683                    for &id in &notification_entities {
 6684                        cx.notify(id);
 6685                    }
 6686                })
 6687                .child(
 6688                    div()
 6689                        .size_full()
 6690                        .relative()
 6691                        .flex_1()
 6692                        .flex()
 6693                        .flex_col()
 6694                        .child(
 6695                            div()
 6696                                .id("workspace")
 6697                                .bg(colors.background)
 6698                                .relative()
 6699                                .flex_1()
 6700                                .w_full()
 6701                                .flex()
 6702                                .flex_col()
 6703                                .overflow_hidden()
 6704                                .border_t_1()
 6705                                .border_b_1()
 6706                                .border_color(colors.border)
 6707                                .child({
 6708                                    let this = cx.entity();
 6709                                    canvas(
 6710                                        move |bounds, window, cx| {
 6711                                            this.update(cx, |this, cx| {
 6712                                                let bounds_changed = this.bounds != bounds;
 6713                                                this.bounds = bounds;
 6714
 6715                                                if bounds_changed {
 6716                                                    this.left_dock.update(cx, |dock, cx| {
 6717                                                        dock.clamp_panel_size(
 6718                                                            bounds.size.width,
 6719                                                            window,
 6720                                                            cx,
 6721                                                        )
 6722                                                    });
 6723
 6724                                                    this.right_dock.update(cx, |dock, cx| {
 6725                                                        dock.clamp_panel_size(
 6726                                                            bounds.size.width,
 6727                                                            window,
 6728                                                            cx,
 6729                                                        )
 6730                                                    });
 6731
 6732                                                    this.bottom_dock.update(cx, |dock, cx| {
 6733                                                        dock.clamp_panel_size(
 6734                                                            bounds.size.height,
 6735                                                            window,
 6736                                                            cx,
 6737                                                        )
 6738                                                    });
 6739                                                }
 6740                                            })
 6741                                        },
 6742                                        |_, _, _, _| {},
 6743                                    )
 6744                                    .absolute()
 6745                                    .size_full()
 6746                                })
 6747                                .when(self.zoomed.is_none(), |this| {
 6748                                    this.on_drag_move(cx.listener(
 6749                                        move |workspace,
 6750                                              e: &DragMoveEvent<DraggedDock>,
 6751                                              window,
 6752                                              cx| {
 6753                                            if workspace.previous_dock_drag_coordinates
 6754                                                != Some(e.event.position)
 6755                                            {
 6756                                                workspace.previous_dock_drag_coordinates =
 6757                                                    Some(e.event.position);
 6758                                                match e.drag(cx).0 {
 6759                                                    DockPosition::Left => {
 6760                                                        workspace.resize_left_dock(
 6761                                                            e.event.position.x
 6762                                                                - workspace.bounds.left(),
 6763                                                            window,
 6764                                                            cx,
 6765                                                        );
 6766                                                    }
 6767                                                    DockPosition::Right => {
 6768                                                        workspace.resize_right_dock(
 6769                                                            workspace.bounds.right()
 6770                                                                - e.event.position.x,
 6771                                                            window,
 6772                                                            cx,
 6773                                                        );
 6774                                                    }
 6775                                                    DockPosition::Bottom => {
 6776                                                        workspace.resize_bottom_dock(
 6777                                                            workspace.bounds.bottom()
 6778                                                                - e.event.position.y,
 6779                                                            window,
 6780                                                            cx,
 6781                                                        );
 6782                                                    }
 6783                                                };
 6784                                                workspace.serialize_workspace(window, cx);
 6785                                            }
 6786                                        },
 6787                                    ))
 6788                                })
 6789                                .child({
 6790                                    match bottom_dock_layout {
 6791                                        BottomDockLayout::Full => div()
 6792                                            .flex()
 6793                                            .flex_col()
 6794                                            .h_full()
 6795                                            .child(
 6796                                                div()
 6797                                                    .flex()
 6798                                                    .flex_row()
 6799                                                    .flex_1()
 6800                                                    .overflow_hidden()
 6801                                                    .children(self.render_dock(
 6802                                                        DockPosition::Left,
 6803                                                        &self.left_dock,
 6804                                                        window,
 6805                                                        cx,
 6806                                                    ))
 6807                                                    .child(
 6808                                                        div()
 6809                                                            .flex()
 6810                                                            .flex_col()
 6811                                                            .flex_1()
 6812                                                            .overflow_hidden()
 6813                                                            .child(
 6814                                                                h_flex()
 6815                                                                    .flex_1()
 6816                                                                    .when_some(
 6817                                                                        paddings.0,
 6818                                                                        |this, p| {
 6819                                                                            this.child(
 6820                                                                                p.border_r_1(),
 6821                                                                            )
 6822                                                                        },
 6823                                                                    )
 6824                                                                    .child(self.center.render(
 6825                                                                        self.zoomed.as_ref(),
 6826                                                                        &PaneRenderContext {
 6827                                                                            follower_states:
 6828                                                                                &self.follower_states,
 6829                                                                            active_call: self.active_call(),
 6830                                                                            active_pane: &self.active_pane,
 6831                                                                            app_state: &self.app_state,
 6832                                                                            project: &self.project,
 6833                                                                            workspace: &self.weak_self,
 6834                                                                        },
 6835                                                                        window,
 6836                                                                        cx,
 6837                                                                    ))
 6838                                                                    .when_some(
 6839                                                                        paddings.1,
 6840                                                                        |this, p| {
 6841                                                                            this.child(
 6842                                                                                p.border_l_1(),
 6843                                                                            )
 6844                                                                        },
 6845                                                                    ),
 6846                                                            ),
 6847                                                    )
 6848                                                    .children(self.render_dock(
 6849                                                        DockPosition::Right,
 6850                                                        &self.right_dock,
 6851                                                        window,
 6852                                                        cx,
 6853                                                    )),
 6854                                            )
 6855                                            .child(div().w_full().children(self.render_dock(
 6856                                                DockPosition::Bottom,
 6857                                                &self.bottom_dock,
 6858                                                window,
 6859                                                cx
 6860                                            ))),
 6861
 6862                                        BottomDockLayout::LeftAligned => div()
 6863                                            .flex()
 6864                                            .flex_row()
 6865                                            .h_full()
 6866                                            .child(
 6867                                                div()
 6868                                                    .flex()
 6869                                                    .flex_col()
 6870                                                    .flex_1()
 6871                                                    .h_full()
 6872                                                    .child(
 6873                                                        div()
 6874                                                            .flex()
 6875                                                            .flex_row()
 6876                                                            .flex_1()
 6877                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6878                                                            .child(
 6879                                                                div()
 6880                                                                    .flex()
 6881                                                                    .flex_col()
 6882                                                                    .flex_1()
 6883                                                                    .overflow_hidden()
 6884                                                                    .child(
 6885                                                                        h_flex()
 6886                                                                            .flex_1()
 6887                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6888                                                                            .child(self.center.render(
 6889                                                                                self.zoomed.as_ref(),
 6890                                                                                &PaneRenderContext {
 6891                                                                                    follower_states:
 6892                                                                                        &self.follower_states,
 6893                                                                                    active_call: self.active_call(),
 6894                                                                                    active_pane: &self.active_pane,
 6895                                                                                    app_state: &self.app_state,
 6896                                                                                    project: &self.project,
 6897                                                                                    workspace: &self.weak_self,
 6898                                                                                },
 6899                                                                                window,
 6900                                                                                cx,
 6901                                                                            ))
 6902                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6903                                                                    )
 6904                                                            )
 6905                                                    )
 6906                                                    .child(
 6907                                                        div()
 6908                                                            .w_full()
 6909                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6910                                                    ),
 6911                                            )
 6912                                            .children(self.render_dock(
 6913                                                DockPosition::Right,
 6914                                                &self.right_dock,
 6915                                                window,
 6916                                                cx,
 6917                                            )),
 6918
 6919                                        BottomDockLayout::RightAligned => div()
 6920                                            .flex()
 6921                                            .flex_row()
 6922                                            .h_full()
 6923                                            .children(self.render_dock(
 6924                                                DockPosition::Left,
 6925                                                &self.left_dock,
 6926                                                window,
 6927                                                cx,
 6928                                            ))
 6929                                            .child(
 6930                                                div()
 6931                                                    .flex()
 6932                                                    .flex_col()
 6933                                                    .flex_1()
 6934                                                    .h_full()
 6935                                                    .child(
 6936                                                        div()
 6937                                                            .flex()
 6938                                                            .flex_row()
 6939                                                            .flex_1()
 6940                                                            .child(
 6941                                                                div()
 6942                                                                    .flex()
 6943                                                                    .flex_col()
 6944                                                                    .flex_1()
 6945                                                                    .overflow_hidden()
 6946                                                                    .child(
 6947                                                                        h_flex()
 6948                                                                            .flex_1()
 6949                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6950                                                                            .child(self.center.render(
 6951                                                                                self.zoomed.as_ref(),
 6952                                                                                &PaneRenderContext {
 6953                                                                                    follower_states:
 6954                                                                                        &self.follower_states,
 6955                                                                                    active_call: self.active_call(),
 6956                                                                                    active_pane: &self.active_pane,
 6957                                                                                    app_state: &self.app_state,
 6958                                                                                    project: &self.project,
 6959                                                                                    workspace: &self.weak_self,
 6960                                                                                },
 6961                                                                                window,
 6962                                                                                cx,
 6963                                                                            ))
 6964                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6965                                                                    )
 6966                                                            )
 6967                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6968                                                    )
 6969                                                    .child(
 6970                                                        div()
 6971                                                            .w_full()
 6972                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6973                                                    ),
 6974                                            ),
 6975
 6976                                        BottomDockLayout::Contained => div()
 6977                                            .flex()
 6978                                            .flex_row()
 6979                                            .h_full()
 6980                                            .children(self.render_dock(
 6981                                                DockPosition::Left,
 6982                                                &self.left_dock,
 6983                                                window,
 6984                                                cx,
 6985                                            ))
 6986                                            .child(
 6987                                                div()
 6988                                                    .flex()
 6989                                                    .flex_col()
 6990                                                    .flex_1()
 6991                                                    .overflow_hidden()
 6992                                                    .child(
 6993                                                        h_flex()
 6994                                                            .flex_1()
 6995                                                            .when_some(paddings.0, |this, p| {
 6996                                                                this.child(p.border_r_1())
 6997                                                            })
 6998                                                            .child(self.center.render(
 6999                                                                self.zoomed.as_ref(),
 7000                                                                &PaneRenderContext {
 7001                                                                    follower_states:
 7002                                                                        &self.follower_states,
 7003                                                                    active_call: self.active_call(),
 7004                                                                    active_pane: &self.active_pane,
 7005                                                                    app_state: &self.app_state,
 7006                                                                    project: &self.project,
 7007                                                                    workspace: &self.weak_self,
 7008                                                                },
 7009                                                                window,
 7010                                                                cx,
 7011                                                            ))
 7012                                                            .when_some(paddings.1, |this, p| {
 7013                                                                this.child(p.border_l_1())
 7014                                                            }),
 7015                                                    )
 7016                                                    .children(self.render_dock(
 7017                                                        DockPosition::Bottom,
 7018                                                        &self.bottom_dock,
 7019                                                        window,
 7020                                                        cx,
 7021                                                    )),
 7022                                            )
 7023                                            .children(self.render_dock(
 7024                                                DockPosition::Right,
 7025                                                &self.right_dock,
 7026                                                window,
 7027                                                cx,
 7028                                            )),
 7029                                    }
 7030                                })
 7031                                .children(self.zoomed.as_ref().and_then(|view| {
 7032                                    let zoomed_view = view.upgrade()?;
 7033                                    let div = div()
 7034                                        .occlude()
 7035                                        .absolute()
 7036                                        .overflow_hidden()
 7037                                        .border_color(colors.border)
 7038                                        .bg(colors.background)
 7039                                        .child(zoomed_view)
 7040                                        .inset_0()
 7041                                        .shadow_lg();
 7042
 7043                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7044                                       return Some(div);
 7045                                    }
 7046
 7047                                    Some(match self.zoomed_position {
 7048                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7049                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7050                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7051                                        None => {
 7052                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7053                                        }
 7054                                    })
 7055                                }))
 7056                                .children(self.render_notifications(window, cx)),
 7057                        )
 7058                        .when(self.status_bar_visible(cx), |parent| {
 7059                            parent.child(self.status_bar.clone())
 7060                        })
 7061                        .child(self.modal_layer.clone())
 7062                        .child(self.toast_layer.clone()),
 7063                ),
 7064            window,
 7065            cx,
 7066        )
 7067    }
 7068}
 7069
 7070impl WorkspaceStore {
 7071    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7072        Self {
 7073            workspaces: Default::default(),
 7074            _subscriptions: vec![
 7075                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7076                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7077            ],
 7078            client,
 7079        }
 7080    }
 7081
 7082    pub fn update_followers(
 7083        &self,
 7084        project_id: Option<u64>,
 7085        update: proto::update_followers::Variant,
 7086        cx: &App,
 7087    ) -> Option<()> {
 7088        let active_call = ActiveCall::try_global(cx)?;
 7089        let room_id = active_call.read(cx).room()?.read(cx).id();
 7090        self.client
 7091            .send(proto::UpdateFollowers {
 7092                room_id,
 7093                project_id,
 7094                variant: Some(update),
 7095            })
 7096            .log_err()
 7097    }
 7098
 7099    pub async fn handle_follow(
 7100        this: Entity<Self>,
 7101        envelope: TypedEnvelope<proto::Follow>,
 7102        mut cx: AsyncApp,
 7103    ) -> Result<proto::FollowResponse> {
 7104        this.update(&mut cx, |this, cx| {
 7105            let follower = Follower {
 7106                project_id: envelope.payload.project_id,
 7107                peer_id: envelope.original_sender_id()?,
 7108            };
 7109
 7110            let mut response = proto::FollowResponse::default();
 7111            this.workspaces.retain(|workspace| {
 7112                workspace
 7113                    .update(cx, |workspace, window, cx| {
 7114                        let handler_response =
 7115                            workspace.handle_follow(follower.project_id, window, cx);
 7116                        if let Some(active_view) = handler_response.active_view
 7117                            && workspace.project.read(cx).remote_id() == follower.project_id
 7118                        {
 7119                            response.active_view = Some(active_view)
 7120                        }
 7121                    })
 7122                    .is_ok()
 7123            });
 7124
 7125            Ok(response)
 7126        })?
 7127    }
 7128
 7129    async fn handle_update_followers(
 7130        this: Entity<Self>,
 7131        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7132        mut cx: AsyncApp,
 7133    ) -> Result<()> {
 7134        let leader_id = envelope.original_sender_id()?;
 7135        let update = envelope.payload;
 7136
 7137        this.update(&mut cx, |this, cx| {
 7138            this.workspaces.retain(|workspace| {
 7139                workspace
 7140                    .update(cx, |workspace, window, cx| {
 7141                        let project_id = workspace.project.read(cx).remote_id();
 7142                        if update.project_id != project_id && update.project_id.is_some() {
 7143                            return;
 7144                        }
 7145                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7146                    })
 7147                    .is_ok()
 7148            });
 7149            Ok(())
 7150        })?
 7151    }
 7152
 7153    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7154        &self.workspaces
 7155    }
 7156}
 7157
 7158impl ViewId {
 7159    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7160        Ok(Self {
 7161            creator: message
 7162                .creator
 7163                .map(CollaboratorId::PeerId)
 7164                .context("creator is missing")?,
 7165            id: message.id,
 7166        })
 7167    }
 7168
 7169    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7170        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7171            Some(proto::ViewId {
 7172                creator: Some(peer_id),
 7173                id: self.id,
 7174            })
 7175        } else {
 7176            None
 7177        }
 7178    }
 7179}
 7180
 7181impl FollowerState {
 7182    fn pane(&self) -> &Entity<Pane> {
 7183        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7184    }
 7185}
 7186
 7187pub trait WorkspaceHandle {
 7188    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7189}
 7190
 7191impl WorkspaceHandle for Entity<Workspace> {
 7192    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7193        self.read(cx)
 7194            .worktrees(cx)
 7195            .flat_map(|worktree| {
 7196                let worktree_id = worktree.read(cx).id();
 7197                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7198                    worktree_id,
 7199                    path: f.path.clone(),
 7200                })
 7201            })
 7202            .collect::<Vec<_>>()
 7203    }
 7204}
 7205
 7206pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7207    DB.last_workspace().await.log_err().flatten()
 7208}
 7209
 7210pub fn last_session_workspace_locations(
 7211    last_session_id: &str,
 7212    last_session_window_stack: Option<Vec<WindowId>>,
 7213) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7214    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7215        .log_err()
 7216}
 7217
 7218actions!(
 7219    collab,
 7220    [
 7221        /// Opens the channel notes for the current call.
 7222        ///
 7223        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7224        /// channel in the collab panel.
 7225        ///
 7226        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7227        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7228        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7229        OpenChannelNotes,
 7230        /// Mutes your microphone.
 7231        Mute,
 7232        /// Deafens yourself (mute both microphone and speakers).
 7233        Deafen,
 7234        /// Leaves the current call.
 7235        LeaveCall,
 7236        /// Shares the current project with collaborators.
 7237        ShareProject,
 7238        /// Shares your screen with collaborators.
 7239        ScreenShare,
 7240        /// Copies the current room name and session id for debugging purposes.
 7241        CopyRoomId,
 7242    ]
 7243);
 7244actions!(
 7245    zed,
 7246    [
 7247        /// Opens the Zed log file.
 7248        OpenLog,
 7249        /// Reveals the Zed log file in the system file manager.
 7250        RevealLogInFileManager
 7251    ]
 7252);
 7253
 7254async fn join_channel_internal(
 7255    channel_id: ChannelId,
 7256    app_state: &Arc<AppState>,
 7257    requesting_window: Option<WindowHandle<Workspace>>,
 7258    active_call: &Entity<ActiveCall>,
 7259    cx: &mut AsyncApp,
 7260) -> Result<bool> {
 7261    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7262        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7263            return (false, None);
 7264        };
 7265
 7266        let already_in_channel = room.channel_id() == Some(channel_id);
 7267        let should_prompt = room.is_sharing_project()
 7268            && !room.remote_participants().is_empty()
 7269            && !already_in_channel;
 7270        let open_room = if already_in_channel {
 7271            active_call.room().cloned()
 7272        } else {
 7273            None
 7274        };
 7275        (should_prompt, open_room)
 7276    })?;
 7277
 7278    if let Some(room) = open_room {
 7279        let task = room.update(cx, |room, cx| {
 7280            if let Some((project, host)) = room.most_active_project(cx) {
 7281                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7282            }
 7283
 7284            None
 7285        })?;
 7286        if let Some(task) = task {
 7287            task.await?;
 7288        }
 7289        return anyhow::Ok(true);
 7290    }
 7291
 7292    if should_prompt {
 7293        if let Some(workspace) = requesting_window {
 7294            let answer = workspace
 7295                .update(cx, |_, window, cx| {
 7296                    window.prompt(
 7297                        PromptLevel::Warning,
 7298                        "Do you want to switch channels?",
 7299                        Some("Leaving this call will unshare your current project."),
 7300                        &["Yes, Join Channel", "Cancel"],
 7301                        cx,
 7302                    )
 7303                })?
 7304                .await;
 7305
 7306            if answer == Ok(1) {
 7307                return Ok(false);
 7308            }
 7309        } else {
 7310            return Ok(false); // unreachable!() hopefully
 7311        }
 7312    }
 7313
 7314    let client = cx.update(|cx| active_call.read(cx).client())?;
 7315
 7316    let mut client_status = client.status();
 7317
 7318    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7319    'outer: loop {
 7320        let Some(status) = client_status.recv().await else {
 7321            anyhow::bail!("error connecting");
 7322        };
 7323
 7324        match status {
 7325            Status::Connecting
 7326            | Status::Authenticating
 7327            | Status::Authenticated
 7328            | Status::Reconnecting
 7329            | Status::Reauthenticating
 7330            | Status::Reauthenticated => continue,
 7331            Status::Connected { .. } => break 'outer,
 7332            Status::SignedOut | Status::AuthenticationError => {
 7333                return Err(ErrorCode::SignedOut.into());
 7334            }
 7335            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7336            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7337                return Err(ErrorCode::Disconnected.into());
 7338            }
 7339        }
 7340    }
 7341
 7342    let room = active_call
 7343        .update(cx, |active_call, cx| {
 7344            active_call.join_channel(channel_id, cx)
 7345        })?
 7346        .await?;
 7347
 7348    let Some(room) = room else {
 7349        return anyhow::Ok(true);
 7350    };
 7351
 7352    room.update(cx, |room, _| room.room_update_completed())?
 7353        .await;
 7354
 7355    let task = room.update(cx, |room, cx| {
 7356        if let Some((project, host)) = room.most_active_project(cx) {
 7357            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7358        }
 7359
 7360        // If you are the first to join a channel, see if you should share your project.
 7361        if room.remote_participants().is_empty()
 7362            && !room.local_participant_is_guest()
 7363            && let Some(workspace) = requesting_window
 7364        {
 7365            let project = workspace.update(cx, |workspace, _, cx| {
 7366                let project = workspace.project.read(cx);
 7367
 7368                if !CallSettings::get_global(cx).share_on_join {
 7369                    return None;
 7370                }
 7371
 7372                if (project.is_local() || project.is_via_remote_server())
 7373                    && project.visible_worktrees(cx).any(|tree| {
 7374                        tree.read(cx)
 7375                            .root_entry()
 7376                            .is_some_and(|entry| entry.is_dir())
 7377                    })
 7378                {
 7379                    Some(workspace.project.clone())
 7380                } else {
 7381                    None
 7382                }
 7383            });
 7384            if let Ok(Some(project)) = project {
 7385                return Some(cx.spawn(async move |room, cx| {
 7386                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7387                        .await?;
 7388                    Ok(())
 7389                }));
 7390            }
 7391        }
 7392
 7393        None
 7394    })?;
 7395    if let Some(task) = task {
 7396        task.await?;
 7397        return anyhow::Ok(true);
 7398    }
 7399    anyhow::Ok(false)
 7400}
 7401
 7402pub fn join_channel(
 7403    channel_id: ChannelId,
 7404    app_state: Arc<AppState>,
 7405    requesting_window: Option<WindowHandle<Workspace>>,
 7406    cx: &mut App,
 7407) -> Task<Result<()>> {
 7408    let active_call = ActiveCall::global(cx);
 7409    cx.spawn(async move |cx| {
 7410        let result =
 7411            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7412                .await;
 7413
 7414        // join channel succeeded, and opened a window
 7415        if matches!(result, Ok(true)) {
 7416            return anyhow::Ok(());
 7417        }
 7418
 7419        // find an existing workspace to focus and show call controls
 7420        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7421        if active_window.is_none() {
 7422            // no open workspaces, make one to show the error in (blergh)
 7423            let (window_handle, _) = cx
 7424                .update(|cx| {
 7425                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7426                })?
 7427                .await?;
 7428
 7429            if result.is_ok() {
 7430                cx.update(|cx| {
 7431                    cx.dispatch_action(&OpenChannelNotes);
 7432                })
 7433                .log_err();
 7434            }
 7435
 7436            active_window = Some(window_handle);
 7437        }
 7438
 7439        if let Err(err) = result {
 7440            log::error!("failed to join channel: {}", err);
 7441            if let Some(active_window) = active_window {
 7442                active_window
 7443                    .update(cx, |_, window, cx| {
 7444                        let detail: SharedString = match err.error_code() {
 7445                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7446                            ErrorCode::UpgradeRequired => concat!(
 7447                                "Your are running an unsupported version of Zed. ",
 7448                                "Please update to continue."
 7449                            )
 7450                            .into(),
 7451                            ErrorCode::NoSuchChannel => concat!(
 7452                                "No matching channel was found. ",
 7453                                "Please check the link and try again."
 7454                            )
 7455                            .into(),
 7456                            ErrorCode::Forbidden => concat!(
 7457                                "This channel is private, and you do not have access. ",
 7458                                "Please ask someone to add you and try again."
 7459                            )
 7460                            .into(),
 7461                            ErrorCode::Disconnected => {
 7462                                "Please check your internet connection and try again.".into()
 7463                            }
 7464                            _ => format!("{}\n\nPlease try again.", err).into(),
 7465                        };
 7466                        window.prompt(
 7467                            PromptLevel::Critical,
 7468                            "Failed to join channel",
 7469                            Some(&detail),
 7470                            &["Ok"],
 7471                            cx,
 7472                        )
 7473                    })?
 7474                    .await
 7475                    .ok();
 7476            }
 7477        }
 7478
 7479        // return ok, we showed the error to the user.
 7480        anyhow::Ok(())
 7481    })
 7482}
 7483
 7484pub async fn get_any_active_workspace(
 7485    app_state: Arc<AppState>,
 7486    mut cx: AsyncApp,
 7487) -> anyhow::Result<WindowHandle<Workspace>> {
 7488    // find an existing workspace to focus and show call controls
 7489    let active_window = activate_any_workspace_window(&mut cx);
 7490    if active_window.is_none() {
 7491        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7492            .await?;
 7493    }
 7494    activate_any_workspace_window(&mut cx).context("could not open zed")
 7495}
 7496
 7497fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7498    cx.update(|cx| {
 7499        if let Some(workspace_window) = cx
 7500            .active_window()
 7501            .and_then(|window| window.downcast::<Workspace>())
 7502        {
 7503            return Some(workspace_window);
 7504        }
 7505
 7506        for window in cx.windows() {
 7507            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7508                workspace_window
 7509                    .update(cx, |_, window, _| window.activate_window())
 7510                    .ok();
 7511                return Some(workspace_window);
 7512            }
 7513        }
 7514        None
 7515    })
 7516    .ok()
 7517    .flatten()
 7518}
 7519
 7520pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7521    cx.windows()
 7522        .into_iter()
 7523        .filter_map(|window| window.downcast::<Workspace>())
 7524        .filter(|workspace| {
 7525            workspace
 7526                .read(cx)
 7527                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7528        })
 7529        .collect()
 7530}
 7531
 7532#[derive(Default)]
 7533pub struct OpenOptions {
 7534    pub visible: Option<OpenVisible>,
 7535    pub focus: Option<bool>,
 7536    pub open_new_workspace: Option<bool>,
 7537    pub prefer_focused_window: bool,
 7538    pub replace_window: Option<WindowHandle<Workspace>>,
 7539    pub env: Option<HashMap<String, String>>,
 7540}
 7541
 7542#[allow(clippy::type_complexity)]
 7543pub fn open_paths(
 7544    abs_paths: &[PathBuf],
 7545    app_state: Arc<AppState>,
 7546    open_options: OpenOptions,
 7547    cx: &mut App,
 7548) -> Task<
 7549    anyhow::Result<(
 7550        WindowHandle<Workspace>,
 7551        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7552    )>,
 7553> {
 7554    let abs_paths = abs_paths.to_vec();
 7555    let mut existing = None;
 7556    let mut best_match = None;
 7557    let mut open_visible = OpenVisible::All;
 7558    #[cfg(target_os = "windows")]
 7559    let wsl_path = abs_paths
 7560        .iter()
 7561        .find_map(|p| util::paths::WslPath::from_path(p));
 7562
 7563    cx.spawn(async move |cx| {
 7564        if open_options.open_new_workspace != Some(true) {
 7565            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7566            let all_metadatas = futures::future::join_all(all_paths)
 7567                .await
 7568                .into_iter()
 7569                .filter_map(|result| result.ok().flatten())
 7570                .collect::<Vec<_>>();
 7571
 7572            cx.update(|cx| {
 7573                for window in local_workspace_windows(cx) {
 7574                    if let Ok(workspace) = window.read(cx) {
 7575                        let m = workspace.project.read(cx).visibility_for_paths(
 7576                            &abs_paths,
 7577                            &all_metadatas,
 7578                            open_options.open_new_workspace == None,
 7579                            cx,
 7580                        );
 7581                        if m > best_match {
 7582                            existing = Some(window);
 7583                            best_match = m;
 7584                        } else if best_match.is_none()
 7585                            && open_options.open_new_workspace == Some(false)
 7586                        {
 7587                            existing = Some(window)
 7588                        }
 7589                    }
 7590                }
 7591            })?;
 7592
 7593            if open_options.open_new_workspace.is_none()
 7594                && (existing.is_none() || open_options.prefer_focused_window)
 7595                && all_metadatas.iter().all(|file| !file.is_dir)
 7596            {
 7597                cx.update(|cx| {
 7598                    if let Some(window) = cx
 7599                        .active_window()
 7600                        .and_then(|window| window.downcast::<Workspace>())
 7601                        && let Ok(workspace) = window.read(cx)
 7602                    {
 7603                        let project = workspace.project().read(cx);
 7604                        if project.is_local() && !project.is_via_collab() {
 7605                            existing = Some(window);
 7606                            open_visible = OpenVisible::None;
 7607                            return;
 7608                        }
 7609                    }
 7610                    for window in local_workspace_windows(cx) {
 7611                        if let Ok(workspace) = window.read(cx) {
 7612                            let project = workspace.project().read(cx);
 7613                            if project.is_via_collab() {
 7614                                continue;
 7615                            }
 7616                            existing = Some(window);
 7617                            open_visible = OpenVisible::None;
 7618                            break;
 7619                        }
 7620                    }
 7621                })?;
 7622            }
 7623        }
 7624
 7625        let result = if let Some(existing) = existing {
 7626            let open_task = existing
 7627                .update(cx, |workspace, window, cx| {
 7628                    window.activate_window();
 7629                    workspace.open_paths(
 7630                        abs_paths,
 7631                        OpenOptions {
 7632                            visible: Some(open_visible),
 7633                            ..Default::default()
 7634                        },
 7635                        None,
 7636                        window,
 7637                        cx,
 7638                    )
 7639                })?
 7640                .await;
 7641
 7642            _ = existing.update(cx, |workspace, _, cx| {
 7643                for item in open_task.iter().flatten() {
 7644                    if let Err(e) = item {
 7645                        workspace.show_error(&e, cx);
 7646                    }
 7647                }
 7648            });
 7649
 7650            Ok((existing, open_task))
 7651        } else {
 7652            cx.update(move |cx| {
 7653                Workspace::new_local(
 7654                    abs_paths,
 7655                    app_state.clone(),
 7656                    open_options.replace_window,
 7657                    open_options.env,
 7658                    cx,
 7659                )
 7660            })?
 7661            .await
 7662        };
 7663
 7664        #[cfg(target_os = "windows")]
 7665        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 7666            && let Ok((workspace, _)) = &result
 7667        {
 7668            workspace
 7669                .update(cx, move |workspace, _window, cx| {
 7670                    struct OpenInWsl;
 7671                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 7672                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 7673                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 7674                        cx.new(move |cx| {
 7675                            MessageNotification::new(msg, cx)
 7676                                .primary_message("Open in WSL")
 7677                                .primary_icon(IconName::FolderOpen)
 7678                                .primary_on_click(move |window, cx| {
 7679                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 7680                                            distro: remote::WslConnectionOptions {
 7681                                                    distro_name: distro.clone(),
 7682                                                user: None,
 7683                                            },
 7684                                            paths: vec![path.clone().into()],
 7685                                        }), cx)
 7686                                })
 7687                        })
 7688                    });
 7689                })
 7690                .unwrap();
 7691        };
 7692        result
 7693    })
 7694}
 7695
 7696pub fn open_new(
 7697    open_options: OpenOptions,
 7698    app_state: Arc<AppState>,
 7699    cx: &mut App,
 7700    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7701) -> Task<anyhow::Result<()>> {
 7702    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7703    cx.spawn(async move |cx| {
 7704        let (workspace, opened_paths) = task.await?;
 7705        workspace.update(cx, |workspace, window, cx| {
 7706            if opened_paths.is_empty() {
 7707                init(workspace, window, cx)
 7708            }
 7709        })?;
 7710        Ok(())
 7711    })
 7712}
 7713
 7714pub fn create_and_open_local_file(
 7715    path: &'static Path,
 7716    window: &mut Window,
 7717    cx: &mut Context<Workspace>,
 7718    default_content: impl 'static + Send + FnOnce() -> Rope,
 7719) -> Task<Result<Box<dyn ItemHandle>>> {
 7720    cx.spawn_in(window, async move |workspace, cx| {
 7721        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7722        if !fs.is_file(path).await {
 7723            fs.create_file(path, Default::default()).await?;
 7724            fs.save(path, &default_content(), Default::default())
 7725                .await?;
 7726        }
 7727
 7728        let mut items = workspace
 7729            .update_in(cx, |workspace, window, cx| {
 7730                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7731                    workspace.open_paths(
 7732                        vec![path.to_path_buf()],
 7733                        OpenOptions {
 7734                            visible: Some(OpenVisible::None),
 7735                            ..Default::default()
 7736                        },
 7737                        None,
 7738                        window,
 7739                        cx,
 7740                    )
 7741                })
 7742            })?
 7743            .await?
 7744            .await;
 7745
 7746        let item = items.pop().flatten();
 7747        item.with_context(|| format!("path {path:?} is not a file"))?
 7748    })
 7749}
 7750
 7751pub fn open_remote_project_with_new_connection(
 7752    window: WindowHandle<Workspace>,
 7753    remote_connection: Arc<dyn RemoteConnection>,
 7754    cancel_rx: oneshot::Receiver<()>,
 7755    delegate: Arc<dyn RemoteClientDelegate>,
 7756    app_state: Arc<AppState>,
 7757    paths: Vec<PathBuf>,
 7758    cx: &mut App,
 7759) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7760    cx.spawn(async move |cx| {
 7761        let (workspace_id, serialized_workspace) =
 7762            serialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 7763                .await?;
 7764
 7765        let session = match cx
 7766            .update(|cx| {
 7767                remote::RemoteClient::new(
 7768                    ConnectionIdentifier::Workspace(workspace_id.0),
 7769                    remote_connection,
 7770                    cancel_rx,
 7771                    delegate,
 7772                    cx,
 7773                )
 7774            })?
 7775            .await?
 7776        {
 7777            Some(result) => result,
 7778            None => return Ok(Vec::new()),
 7779        };
 7780
 7781        let project = cx.update(|cx| {
 7782            project::Project::remote(
 7783                session,
 7784                app_state.client.clone(),
 7785                app_state.node_runtime.clone(),
 7786                app_state.user_store.clone(),
 7787                app_state.languages.clone(),
 7788                app_state.fs.clone(),
 7789                cx,
 7790            )
 7791        })?;
 7792
 7793        open_remote_project_inner(
 7794            project,
 7795            paths,
 7796            workspace_id,
 7797            serialized_workspace,
 7798            app_state,
 7799            window,
 7800            cx,
 7801        )
 7802        .await
 7803    })
 7804}
 7805
 7806pub fn open_remote_project_with_existing_connection(
 7807    connection_options: RemoteConnectionOptions,
 7808    project: Entity<Project>,
 7809    paths: Vec<PathBuf>,
 7810    app_state: Arc<AppState>,
 7811    window: WindowHandle<Workspace>,
 7812    cx: &mut AsyncApp,
 7813) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7814    cx.spawn(async move |cx| {
 7815        let (workspace_id, serialized_workspace) =
 7816            serialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7817
 7818        open_remote_project_inner(
 7819            project,
 7820            paths,
 7821            workspace_id,
 7822            serialized_workspace,
 7823            app_state,
 7824            window,
 7825            cx,
 7826        )
 7827        .await
 7828    })
 7829}
 7830
 7831async fn open_remote_project_inner(
 7832    project: Entity<Project>,
 7833    paths: Vec<PathBuf>,
 7834    workspace_id: WorkspaceId,
 7835    serialized_workspace: Option<SerializedWorkspace>,
 7836    app_state: Arc<AppState>,
 7837    window: WindowHandle<Workspace>,
 7838    cx: &mut AsyncApp,
 7839) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 7840    let toolchains = DB.toolchains(workspace_id).await?;
 7841    for (toolchain, worktree_id, path) in toolchains {
 7842        project
 7843            .update(cx, |this, cx| {
 7844                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7845            })?
 7846            .await;
 7847    }
 7848    let mut project_paths_to_open = vec![];
 7849    let mut project_path_errors = vec![];
 7850
 7851    for path in paths {
 7852        let result = cx
 7853            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7854            .await;
 7855        match result {
 7856            Ok((_, project_path)) => {
 7857                project_paths_to_open.push((path.clone(), Some(project_path)));
 7858            }
 7859            Err(error) => {
 7860                project_path_errors.push(error);
 7861            }
 7862        };
 7863    }
 7864
 7865    if project_paths_to_open.is_empty() {
 7866        return Err(project_path_errors.pop().context("no paths given")?);
 7867    }
 7868
 7869    if let Some(detach_session_task) = window
 7870        .update(cx, |_workspace, window, cx| {
 7871            cx.spawn_in(window, async move |this, cx| {
 7872                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7873            })
 7874        })
 7875        .ok()
 7876    {
 7877        detach_session_task.await.ok();
 7878    }
 7879
 7880    cx.update_window(window.into(), |_, window, cx| {
 7881        window.replace_root(cx, |window, cx| {
 7882            telemetry::event!("SSH Project Opened");
 7883
 7884            let mut workspace =
 7885                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7886            workspace.update_history(cx);
 7887
 7888            if let Some(ref serialized) = serialized_workspace {
 7889                workspace.centered_layout = serialized.centered_layout;
 7890            }
 7891
 7892            workspace
 7893        });
 7894    })?;
 7895
 7896    let items = window
 7897        .update(cx, |_, window, cx| {
 7898            window.activate_window();
 7899            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7900        })?
 7901        .await?;
 7902
 7903    window.update(cx, |workspace, _, cx| {
 7904        for error in project_path_errors {
 7905            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7906                if let Some(path) = error.error_tag("path") {
 7907                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7908                }
 7909            } else {
 7910                workspace.show_error(&error, cx)
 7911            }
 7912        }
 7913    })?;
 7914
 7915    Ok(items.into_iter().map(|item| item?.ok()).collect())
 7916}
 7917
 7918fn serialize_remote_project(
 7919    connection_options: RemoteConnectionOptions,
 7920    paths: Vec<PathBuf>,
 7921    cx: &AsyncApp,
 7922) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 7923    cx.background_spawn(async move {
 7924        let remote_connection_id = persistence::DB
 7925            .get_or_create_remote_connection(connection_options)
 7926            .await?;
 7927
 7928        let serialized_workspace =
 7929            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 7930
 7931        let workspace_id = if let Some(workspace_id) =
 7932            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7933        {
 7934            workspace_id
 7935        } else {
 7936            persistence::DB.next_id().await?
 7937        };
 7938
 7939        Ok((workspace_id, serialized_workspace))
 7940    })
 7941}
 7942
 7943pub fn join_in_room_project(
 7944    project_id: u64,
 7945    follow_user_id: u64,
 7946    app_state: Arc<AppState>,
 7947    cx: &mut App,
 7948) -> Task<Result<()>> {
 7949    let windows = cx.windows();
 7950    cx.spawn(async move |cx| {
 7951        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7952            window_handle
 7953                .downcast::<Workspace>()
 7954                .and_then(|window_handle| {
 7955                    window_handle
 7956                        .update(cx, |workspace, _window, cx| {
 7957                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7958                                Some(window_handle)
 7959                            } else {
 7960                                None
 7961                            }
 7962                        })
 7963                        .unwrap_or(None)
 7964                })
 7965        });
 7966
 7967        let workspace = if let Some(existing_workspace) = existing_workspace {
 7968            existing_workspace
 7969        } else {
 7970            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7971            let room = active_call
 7972                .read_with(cx, |call, _| call.room().cloned())?
 7973                .context("not in a call")?;
 7974            let project = room
 7975                .update(cx, |room, cx| {
 7976                    room.join_project(
 7977                        project_id,
 7978                        app_state.languages.clone(),
 7979                        app_state.fs.clone(),
 7980                        cx,
 7981                    )
 7982                })?
 7983                .await?;
 7984
 7985            let window_bounds_override = window_bounds_env_override();
 7986            cx.update(|cx| {
 7987                let mut options = (app_state.build_window_options)(None, cx);
 7988                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7989                cx.open_window(options, |window, cx| {
 7990                    cx.new(|cx| {
 7991                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7992                    })
 7993                })
 7994            })??
 7995        };
 7996
 7997        workspace.update(cx, |workspace, window, cx| {
 7998            cx.activate(true);
 7999            window.activate_window();
 8000
 8001            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8002                let follow_peer_id = room
 8003                    .read(cx)
 8004                    .remote_participants()
 8005                    .iter()
 8006                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8007                    .map(|(_, p)| p.peer_id)
 8008                    .or_else(|| {
 8009                        // If we couldn't follow the given user, follow the host instead.
 8010                        let collaborator = workspace
 8011                            .project()
 8012                            .read(cx)
 8013                            .collaborators()
 8014                            .values()
 8015                            .find(|collaborator| collaborator.is_host)?;
 8016                        Some(collaborator.peer_id)
 8017                    });
 8018
 8019                if let Some(follow_peer_id) = follow_peer_id {
 8020                    workspace.follow(follow_peer_id, window, cx);
 8021                }
 8022            }
 8023        })?;
 8024
 8025        anyhow::Ok(())
 8026    })
 8027}
 8028
 8029pub fn reload(cx: &mut App) {
 8030    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8031    let mut workspace_windows = cx
 8032        .windows()
 8033        .into_iter()
 8034        .filter_map(|window| window.downcast::<Workspace>())
 8035        .collect::<Vec<_>>();
 8036
 8037    // If multiple windows have unsaved changes, and need a save prompt,
 8038    // prompt in the active window before switching to a different window.
 8039    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8040
 8041    let mut prompt = None;
 8042    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8043        prompt = window
 8044            .update(cx, |_, window, cx| {
 8045                window.prompt(
 8046                    PromptLevel::Info,
 8047                    "Are you sure you want to restart?",
 8048                    None,
 8049                    &["Restart", "Cancel"],
 8050                    cx,
 8051                )
 8052            })
 8053            .ok();
 8054    }
 8055
 8056    cx.spawn(async move |cx| {
 8057        if let Some(prompt) = prompt {
 8058            let answer = prompt.await?;
 8059            if answer != 0 {
 8060                return Ok(());
 8061            }
 8062        }
 8063
 8064        // If the user cancels any save prompt, then keep the app open.
 8065        for window in workspace_windows {
 8066            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8067                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8068            }) && !should_close.await?
 8069            {
 8070                return Ok(());
 8071            }
 8072        }
 8073        cx.update(|cx| cx.restart())
 8074    })
 8075    .detach_and_log_err(cx);
 8076}
 8077
 8078fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8079    let mut parts = value.split(',');
 8080    let x: usize = parts.next()?.parse().ok()?;
 8081    let y: usize = parts.next()?.parse().ok()?;
 8082    Some(point(px(x as f32), px(y as f32)))
 8083}
 8084
 8085fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8086    let mut parts = value.split(',');
 8087    let width: usize = parts.next()?.parse().ok()?;
 8088    let height: usize = parts.next()?.parse().ok()?;
 8089    Some(size(px(width as f32), px(height as f32)))
 8090}
 8091
 8092/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8093pub fn client_side_decorations(
 8094    element: impl IntoElement,
 8095    window: &mut Window,
 8096    cx: &mut App,
 8097) -> Stateful<Div> {
 8098    const BORDER_SIZE: Pixels = px(1.0);
 8099    let decorations = window.window_decorations();
 8100
 8101    match decorations {
 8102        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8103        Decorations::Server => window.set_client_inset(px(0.0)),
 8104    }
 8105
 8106    struct GlobalResizeEdge(ResizeEdge);
 8107    impl Global for GlobalResizeEdge {}
 8108
 8109    div()
 8110        .id("window-backdrop")
 8111        .bg(transparent_black())
 8112        .map(|div| match decorations {
 8113            Decorations::Server => div,
 8114            Decorations::Client { tiling, .. } => div
 8115                .when(!(tiling.top || tiling.right), |div| {
 8116                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8117                })
 8118                .when(!(tiling.top || tiling.left), |div| {
 8119                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8120                })
 8121                .when(!(tiling.bottom || tiling.right), |div| {
 8122                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8123                })
 8124                .when(!(tiling.bottom || tiling.left), |div| {
 8125                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8126                })
 8127                .when(!tiling.top, |div| {
 8128                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8129                })
 8130                .when(!tiling.bottom, |div| {
 8131                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8132                })
 8133                .when(!tiling.left, |div| {
 8134                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8135                })
 8136                .when(!tiling.right, |div| {
 8137                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8138                })
 8139                .on_mouse_move(move |e, window, cx| {
 8140                    let size = window.window_bounds().get_bounds().size;
 8141                    let pos = e.position;
 8142
 8143                    let new_edge =
 8144                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8145
 8146                    let edge = cx.try_global::<GlobalResizeEdge>();
 8147                    if new_edge != edge.map(|edge| edge.0) {
 8148                        window
 8149                            .window_handle()
 8150                            .update(cx, |workspace, _, cx| {
 8151                                cx.notify(workspace.entity_id());
 8152                            })
 8153                            .ok();
 8154                    }
 8155                })
 8156                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8157                    let size = window.window_bounds().get_bounds().size;
 8158                    let pos = e.position;
 8159
 8160                    let edge = match resize_edge(
 8161                        pos,
 8162                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8163                        size,
 8164                        tiling,
 8165                    ) {
 8166                        Some(value) => value,
 8167                        None => return,
 8168                    };
 8169
 8170                    window.start_window_resize(edge);
 8171                }),
 8172        })
 8173        .size_full()
 8174        .child(
 8175            div()
 8176                .cursor(CursorStyle::Arrow)
 8177                .map(|div| match decorations {
 8178                    Decorations::Server => div,
 8179                    Decorations::Client { tiling } => div
 8180                        .border_color(cx.theme().colors().border)
 8181                        .when(!(tiling.top || tiling.right), |div| {
 8182                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8183                        })
 8184                        .when(!(tiling.top || tiling.left), |div| {
 8185                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8186                        })
 8187                        .when(!(tiling.bottom || tiling.right), |div| {
 8188                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8189                        })
 8190                        .when(!(tiling.bottom || tiling.left), |div| {
 8191                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8192                        })
 8193                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8194                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8195                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8196                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8197                        .when(!tiling.is_tiled(), |div| {
 8198                            div.shadow(vec![gpui::BoxShadow {
 8199                                color: Hsla {
 8200                                    h: 0.,
 8201                                    s: 0.,
 8202                                    l: 0.,
 8203                                    a: 0.4,
 8204                                },
 8205                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8206                                spread_radius: px(0.),
 8207                                offset: point(px(0.0), px(0.0)),
 8208                            }])
 8209                        }),
 8210                })
 8211                .on_mouse_move(|_e, _, cx| {
 8212                    cx.stop_propagation();
 8213                })
 8214                .size_full()
 8215                .child(element),
 8216        )
 8217        .map(|div| match decorations {
 8218            Decorations::Server => div,
 8219            Decorations::Client { tiling, .. } => div.child(
 8220                canvas(
 8221                    |_bounds, window, _| {
 8222                        window.insert_hitbox(
 8223                            Bounds::new(
 8224                                point(px(0.0), px(0.0)),
 8225                                window.window_bounds().get_bounds().size,
 8226                            ),
 8227                            HitboxBehavior::Normal,
 8228                        )
 8229                    },
 8230                    move |_bounds, hitbox, window, cx| {
 8231                        let mouse = window.mouse_position();
 8232                        let size = window.window_bounds().get_bounds().size;
 8233                        let Some(edge) =
 8234                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8235                        else {
 8236                            return;
 8237                        };
 8238                        cx.set_global(GlobalResizeEdge(edge));
 8239                        window.set_cursor_style(
 8240                            match edge {
 8241                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8242                                ResizeEdge::Left | ResizeEdge::Right => {
 8243                                    CursorStyle::ResizeLeftRight
 8244                                }
 8245                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8246                                    CursorStyle::ResizeUpLeftDownRight
 8247                                }
 8248                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8249                                    CursorStyle::ResizeUpRightDownLeft
 8250                                }
 8251                            },
 8252                            &hitbox,
 8253                        );
 8254                    },
 8255                )
 8256                .size_full()
 8257                .absolute(),
 8258            ),
 8259        })
 8260}
 8261
 8262fn resize_edge(
 8263    pos: Point<Pixels>,
 8264    shadow_size: Pixels,
 8265    window_size: Size<Pixels>,
 8266    tiling: Tiling,
 8267) -> Option<ResizeEdge> {
 8268    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8269    if bounds.contains(&pos) {
 8270        return None;
 8271    }
 8272
 8273    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8274    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8275    if !tiling.top && top_left_bounds.contains(&pos) {
 8276        return Some(ResizeEdge::TopLeft);
 8277    }
 8278
 8279    let top_right_bounds = Bounds::new(
 8280        Point::new(window_size.width - corner_size.width, px(0.)),
 8281        corner_size,
 8282    );
 8283    if !tiling.top && top_right_bounds.contains(&pos) {
 8284        return Some(ResizeEdge::TopRight);
 8285    }
 8286
 8287    let bottom_left_bounds = Bounds::new(
 8288        Point::new(px(0.), window_size.height - corner_size.height),
 8289        corner_size,
 8290    );
 8291    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8292        return Some(ResizeEdge::BottomLeft);
 8293    }
 8294
 8295    let bottom_right_bounds = Bounds::new(
 8296        Point::new(
 8297            window_size.width - corner_size.width,
 8298            window_size.height - corner_size.height,
 8299        ),
 8300        corner_size,
 8301    );
 8302    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8303        return Some(ResizeEdge::BottomRight);
 8304    }
 8305
 8306    if !tiling.top && pos.y < shadow_size {
 8307        Some(ResizeEdge::Top)
 8308    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8309        Some(ResizeEdge::Bottom)
 8310    } else if !tiling.left && pos.x < shadow_size {
 8311        Some(ResizeEdge::Left)
 8312    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8313        Some(ResizeEdge::Right)
 8314    } else {
 8315        None
 8316    }
 8317}
 8318
 8319fn join_pane_into_active(
 8320    active_pane: &Entity<Pane>,
 8321    pane: &Entity<Pane>,
 8322    window: &mut Window,
 8323    cx: &mut App,
 8324) {
 8325    if pane == active_pane {
 8326    } else if pane.read(cx).items_len() == 0 {
 8327        pane.update(cx, |_, cx| {
 8328            cx.emit(pane::Event::Remove {
 8329                focus_on_pane: None,
 8330            });
 8331        })
 8332    } else {
 8333        move_all_items(pane, active_pane, window, cx);
 8334    }
 8335}
 8336
 8337fn move_all_items(
 8338    from_pane: &Entity<Pane>,
 8339    to_pane: &Entity<Pane>,
 8340    window: &mut Window,
 8341    cx: &mut App,
 8342) {
 8343    let destination_is_different = from_pane != to_pane;
 8344    let mut moved_items = 0;
 8345    for (item_ix, item_handle) in from_pane
 8346        .read(cx)
 8347        .items()
 8348        .enumerate()
 8349        .map(|(ix, item)| (ix, item.clone()))
 8350        .collect::<Vec<_>>()
 8351    {
 8352        let ix = item_ix - moved_items;
 8353        if destination_is_different {
 8354            // Close item from previous pane
 8355            from_pane.update(cx, |source, cx| {
 8356                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8357            });
 8358            moved_items += 1;
 8359        }
 8360
 8361        // This automatically removes duplicate items in the pane
 8362        to_pane.update(cx, |destination, cx| {
 8363            destination.add_item(item_handle, true, true, None, window, cx);
 8364            window.focus(&destination.focus_handle(cx))
 8365        });
 8366    }
 8367}
 8368
 8369pub fn move_item(
 8370    source: &Entity<Pane>,
 8371    destination: &Entity<Pane>,
 8372    item_id_to_move: EntityId,
 8373    destination_index: usize,
 8374    activate: bool,
 8375    window: &mut Window,
 8376    cx: &mut App,
 8377) {
 8378    let Some((item_ix, item_handle)) = source
 8379        .read(cx)
 8380        .items()
 8381        .enumerate()
 8382        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8383        .map(|(ix, item)| (ix, item.clone()))
 8384    else {
 8385        // Tab was closed during drag
 8386        return;
 8387    };
 8388
 8389    if source != destination {
 8390        // Close item from previous pane
 8391        source.update(cx, |source, cx| {
 8392            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8393        });
 8394    }
 8395
 8396    // This automatically removes duplicate items in the pane
 8397    destination.update(cx, |destination, cx| {
 8398        destination.add_item_inner(
 8399            item_handle,
 8400            activate,
 8401            activate,
 8402            activate,
 8403            Some(destination_index),
 8404            window,
 8405            cx,
 8406        );
 8407        if activate {
 8408            window.focus(&destination.focus_handle(cx))
 8409        }
 8410    });
 8411}
 8412
 8413pub fn move_active_item(
 8414    source: &Entity<Pane>,
 8415    destination: &Entity<Pane>,
 8416    focus_destination: bool,
 8417    close_if_empty: bool,
 8418    window: &mut Window,
 8419    cx: &mut App,
 8420) {
 8421    if source == destination {
 8422        return;
 8423    }
 8424    let Some(active_item) = source.read(cx).active_item() else {
 8425        return;
 8426    };
 8427    source.update(cx, |source_pane, cx| {
 8428        let item_id = active_item.item_id();
 8429        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8430        destination.update(cx, |target_pane, cx| {
 8431            target_pane.add_item(
 8432                active_item,
 8433                focus_destination,
 8434                focus_destination,
 8435                Some(target_pane.items_len()),
 8436                window,
 8437                cx,
 8438            );
 8439        });
 8440    });
 8441}
 8442
 8443pub fn clone_active_item(
 8444    workspace_id: Option<WorkspaceId>,
 8445    source: &Entity<Pane>,
 8446    destination: &Entity<Pane>,
 8447    focus_destination: bool,
 8448    window: &mut Window,
 8449    cx: &mut App,
 8450) {
 8451    if source == destination {
 8452        return;
 8453    }
 8454    let Some(active_item) = source.read(cx).active_item() else {
 8455        return;
 8456    };
 8457    if !active_item.can_split(cx) {
 8458        return;
 8459    }
 8460    let destination = destination.downgrade();
 8461    let task = active_item.clone_on_split(workspace_id, window, cx);
 8462    window
 8463        .spawn(cx, async move |cx| {
 8464            let Some(clone) = task.await else {
 8465                return;
 8466            };
 8467            destination
 8468                .update_in(cx, |target_pane, window, cx| {
 8469                    target_pane.add_item(
 8470                        clone,
 8471                        focus_destination,
 8472                        focus_destination,
 8473                        Some(target_pane.items_len()),
 8474                        window,
 8475                        cx,
 8476                    );
 8477                })
 8478                .log_err();
 8479        })
 8480        .detach();
 8481}
 8482
 8483#[derive(Debug)]
 8484pub struct WorkspacePosition {
 8485    pub window_bounds: Option<WindowBounds>,
 8486    pub display: Option<Uuid>,
 8487    pub centered_layout: bool,
 8488}
 8489
 8490pub fn remote_workspace_position_from_db(
 8491    connection_options: RemoteConnectionOptions,
 8492    paths_to_open: &[PathBuf],
 8493    cx: &App,
 8494) -> Task<Result<WorkspacePosition>> {
 8495    let paths = paths_to_open.to_vec();
 8496
 8497    cx.background_spawn(async move {
 8498        let remote_connection_id = persistence::DB
 8499            .get_or_create_remote_connection(connection_options)
 8500            .await
 8501            .context("fetching serialized ssh project")?;
 8502        let serialized_workspace =
 8503            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8504
 8505        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8506            (Some(WindowBounds::Windowed(bounds)), None)
 8507        } else {
 8508            let restorable_bounds = serialized_workspace
 8509                .as_ref()
 8510                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8511                .or_else(|| {
 8512                    let (display, window_bounds) = DB.last_window().log_err()?;
 8513                    Some((display?, window_bounds?))
 8514                });
 8515
 8516            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8517                (Some(serialized_status.0), Some(serialized_display))
 8518            } else {
 8519                (None, None)
 8520            }
 8521        };
 8522
 8523        let centered_layout = serialized_workspace
 8524            .as_ref()
 8525            .map(|w| w.centered_layout)
 8526            .unwrap_or(false);
 8527
 8528        Ok(WorkspacePosition {
 8529            window_bounds,
 8530            display,
 8531            centered_layout,
 8532        })
 8533    })
 8534}
 8535
 8536pub fn with_active_or_new_workspace(
 8537    cx: &mut App,
 8538    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8539) {
 8540    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8541        Some(workspace) => {
 8542            cx.defer(move |cx| {
 8543                workspace
 8544                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8545                    .log_err();
 8546            });
 8547        }
 8548        None => {
 8549            let app_state = AppState::global(cx);
 8550            if let Some(app_state) = app_state.upgrade() {
 8551                open_new(
 8552                    OpenOptions::default(),
 8553                    app_state,
 8554                    cx,
 8555                    move |workspace, window, cx| f(workspace, window, cx),
 8556                )
 8557                .detach_and_log_err(cx);
 8558            }
 8559        }
 8560    }
 8561}
 8562
 8563#[cfg(test)]
 8564mod tests {
 8565    use std::{cell::RefCell, rc::Rc};
 8566
 8567    use super::*;
 8568    use crate::{
 8569        dock::{PanelEvent, test::TestPanel},
 8570        item::{
 8571            ItemBufferKind, ItemEvent,
 8572            test::{TestItem, TestProjectItem},
 8573        },
 8574    };
 8575    use fs::FakeFs;
 8576    use gpui::{
 8577        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8578        UpdateGlobal, VisualTestContext, px,
 8579    };
 8580    use project::{Project, ProjectEntryId};
 8581    use serde_json::json;
 8582    use settings::SettingsStore;
 8583    use util::rel_path::rel_path;
 8584
 8585    #[gpui::test]
 8586    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8587        init_test(cx);
 8588
 8589        let fs = FakeFs::new(cx.executor());
 8590        let project = Project::test(fs, [], cx).await;
 8591        let (workspace, cx) =
 8592            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8593
 8594        // Adding an item with no ambiguity renders the tab without detail.
 8595        let item1 = cx.new(|cx| {
 8596            let mut item = TestItem::new(cx);
 8597            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8598            item
 8599        });
 8600        workspace.update_in(cx, |workspace, window, cx| {
 8601            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8602        });
 8603        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8604
 8605        // Adding an item that creates ambiguity increases the level of detail on
 8606        // both tabs.
 8607        let item2 = cx.new_window_entity(|_window, cx| {
 8608            let mut item = TestItem::new(cx);
 8609            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8610            item
 8611        });
 8612        workspace.update_in(cx, |workspace, window, cx| {
 8613            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8614        });
 8615        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8616        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8617
 8618        // Adding an item that creates ambiguity increases the level of detail only
 8619        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8620        // we stop at the highest detail available.
 8621        let item3 = cx.new(|cx| {
 8622            let mut item = TestItem::new(cx);
 8623            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8624            item
 8625        });
 8626        workspace.update_in(cx, |workspace, window, cx| {
 8627            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8628        });
 8629        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8630        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8631        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8632    }
 8633
 8634    #[gpui::test]
 8635    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8636        init_test(cx);
 8637
 8638        let fs = FakeFs::new(cx.executor());
 8639        fs.insert_tree(
 8640            "/root1",
 8641            json!({
 8642                "one.txt": "",
 8643                "two.txt": "",
 8644            }),
 8645        )
 8646        .await;
 8647        fs.insert_tree(
 8648            "/root2",
 8649            json!({
 8650                "three.txt": "",
 8651            }),
 8652        )
 8653        .await;
 8654
 8655        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8656        let (workspace, cx) =
 8657            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8658        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8659        let worktree_id = project.update(cx, |project, cx| {
 8660            project.worktrees(cx).next().unwrap().read(cx).id()
 8661        });
 8662
 8663        let item1 = cx.new(|cx| {
 8664            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8665        });
 8666        let item2 = cx.new(|cx| {
 8667            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8668        });
 8669
 8670        // Add an item to an empty pane
 8671        workspace.update_in(cx, |workspace, window, cx| {
 8672            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8673        });
 8674        project.update(cx, |project, cx| {
 8675            assert_eq!(
 8676                project.active_entry(),
 8677                project
 8678                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8679                    .map(|e| e.id)
 8680            );
 8681        });
 8682        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8683
 8684        // Add a second item to a non-empty pane
 8685        workspace.update_in(cx, |workspace, window, cx| {
 8686            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8687        });
 8688        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8689        project.update(cx, |project, cx| {
 8690            assert_eq!(
 8691                project.active_entry(),
 8692                project
 8693                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 8694                    .map(|e| e.id)
 8695            );
 8696        });
 8697
 8698        // Close the active item
 8699        pane.update_in(cx, |pane, window, cx| {
 8700            pane.close_active_item(&Default::default(), window, cx)
 8701        })
 8702        .await
 8703        .unwrap();
 8704        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8705        project.update(cx, |project, cx| {
 8706            assert_eq!(
 8707                project.active_entry(),
 8708                project
 8709                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8710                    .map(|e| e.id)
 8711            );
 8712        });
 8713
 8714        // Add a project folder
 8715        project
 8716            .update(cx, |project, cx| {
 8717                project.find_or_create_worktree("root2", true, cx)
 8718            })
 8719            .await
 8720            .unwrap();
 8721        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8722
 8723        // Remove a project folder
 8724        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8725        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8726    }
 8727
 8728    #[gpui::test]
 8729    async fn test_close_window(cx: &mut TestAppContext) {
 8730        init_test(cx);
 8731
 8732        let fs = FakeFs::new(cx.executor());
 8733        fs.insert_tree("/root", json!({ "one": "" })).await;
 8734
 8735        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8736        let (workspace, cx) =
 8737            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8738
 8739        // When there are no dirty items, there's nothing to do.
 8740        let item1 = cx.new(TestItem::new);
 8741        workspace.update_in(cx, |w, window, cx| {
 8742            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8743        });
 8744        let task = workspace.update_in(cx, |w, window, cx| {
 8745            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8746        });
 8747        assert!(task.await.unwrap());
 8748
 8749        // When there are dirty untitled items, prompt to save each one. If the user
 8750        // cancels any prompt, then abort.
 8751        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8752        let item3 = cx.new(|cx| {
 8753            TestItem::new(cx)
 8754                .with_dirty(true)
 8755                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8756        });
 8757        workspace.update_in(cx, |w, window, cx| {
 8758            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8759            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8760        });
 8761        let task = workspace.update_in(cx, |w, window, cx| {
 8762            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8763        });
 8764        cx.executor().run_until_parked();
 8765        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8766        cx.executor().run_until_parked();
 8767        assert!(!cx.has_pending_prompt());
 8768        assert!(!task.await.unwrap());
 8769    }
 8770
 8771    #[gpui::test]
 8772    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8773        init_test(cx);
 8774
 8775        // Register TestItem as a serializable item
 8776        cx.update(|cx| {
 8777            register_serializable_item::<TestItem>(cx);
 8778        });
 8779
 8780        let fs = FakeFs::new(cx.executor());
 8781        fs.insert_tree("/root", json!({ "one": "" })).await;
 8782
 8783        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8784        let (workspace, cx) =
 8785            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8786
 8787        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8788        let item1 = cx.new(|cx| {
 8789            TestItem::new(cx)
 8790                .with_dirty(true)
 8791                .with_serialize(|| Some(Task::ready(Ok(()))))
 8792        });
 8793        let item2 = cx.new(|cx| {
 8794            TestItem::new(cx)
 8795                .with_dirty(true)
 8796                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8797                .with_serialize(|| Some(Task::ready(Ok(()))))
 8798        });
 8799        workspace.update_in(cx, |w, window, cx| {
 8800            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8801            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8802        });
 8803        let task = workspace.update_in(cx, |w, window, cx| {
 8804            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8805        });
 8806        assert!(task.await.unwrap());
 8807    }
 8808
 8809    #[gpui::test]
 8810    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8811        init_test(cx);
 8812
 8813        let fs = FakeFs::new(cx.executor());
 8814
 8815        let project = Project::test(fs, None, cx).await;
 8816        let (workspace, cx) =
 8817            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8818
 8819        let item1 = cx.new(|cx| {
 8820            TestItem::new(cx)
 8821                .with_dirty(true)
 8822                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8823        });
 8824        let item2 = cx.new(|cx| {
 8825            TestItem::new(cx)
 8826                .with_dirty(true)
 8827                .with_conflict(true)
 8828                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8829        });
 8830        let item3 = cx.new(|cx| {
 8831            TestItem::new(cx)
 8832                .with_dirty(true)
 8833                .with_conflict(true)
 8834                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8835        });
 8836        let item4 = cx.new(|cx| {
 8837            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8838                let project_item = TestProjectItem::new_untitled(cx);
 8839                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8840                project_item
 8841            }])
 8842        });
 8843        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8844            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8845            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8846            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8847            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8848            workspace.active_pane().clone()
 8849        });
 8850
 8851        let close_items = pane.update_in(cx, |pane, window, cx| {
 8852            pane.activate_item(1, true, true, window, cx);
 8853            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8854            let item1_id = item1.item_id();
 8855            let item3_id = item3.item_id();
 8856            let item4_id = item4.item_id();
 8857            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8858                [item1_id, item3_id, item4_id].contains(&id)
 8859            })
 8860        });
 8861        cx.executor().run_until_parked();
 8862
 8863        assert!(cx.has_pending_prompt());
 8864        cx.simulate_prompt_answer("Save all");
 8865
 8866        cx.executor().run_until_parked();
 8867
 8868        // Item 1 is saved. There's a prompt to save item 3.
 8869        pane.update(cx, |pane, cx| {
 8870            assert_eq!(item1.read(cx).save_count, 1);
 8871            assert_eq!(item1.read(cx).save_as_count, 0);
 8872            assert_eq!(item1.read(cx).reload_count, 0);
 8873            assert_eq!(pane.items_len(), 3);
 8874            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8875        });
 8876        assert!(cx.has_pending_prompt());
 8877
 8878        // Cancel saving item 3.
 8879        cx.simulate_prompt_answer("Discard");
 8880        cx.executor().run_until_parked();
 8881
 8882        // Item 3 is reloaded. There's a prompt to save item 4.
 8883        pane.update(cx, |pane, cx| {
 8884            assert_eq!(item3.read(cx).save_count, 0);
 8885            assert_eq!(item3.read(cx).save_as_count, 0);
 8886            assert_eq!(item3.read(cx).reload_count, 1);
 8887            assert_eq!(pane.items_len(), 2);
 8888            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8889        });
 8890
 8891        // There's a prompt for a path for item 4.
 8892        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8893        close_items.await.unwrap();
 8894
 8895        // The requested items are closed.
 8896        pane.update(cx, |pane, cx| {
 8897            assert_eq!(item4.read(cx).save_count, 0);
 8898            assert_eq!(item4.read(cx).save_as_count, 1);
 8899            assert_eq!(item4.read(cx).reload_count, 0);
 8900            assert_eq!(pane.items_len(), 1);
 8901            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8902        });
 8903    }
 8904
 8905    #[gpui::test]
 8906    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8907        init_test(cx);
 8908
 8909        let fs = FakeFs::new(cx.executor());
 8910        let project = Project::test(fs, [], cx).await;
 8911        let (workspace, cx) =
 8912            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8913
 8914        // Create several workspace items with single project entries, and two
 8915        // workspace items with multiple project entries.
 8916        let single_entry_items = (0..=4)
 8917            .map(|project_entry_id| {
 8918                cx.new(|cx| {
 8919                    TestItem::new(cx)
 8920                        .with_dirty(true)
 8921                        .with_project_items(&[dirty_project_item(
 8922                            project_entry_id,
 8923                            &format!("{project_entry_id}.txt"),
 8924                            cx,
 8925                        )])
 8926                })
 8927            })
 8928            .collect::<Vec<_>>();
 8929        let item_2_3 = cx.new(|cx| {
 8930            TestItem::new(cx)
 8931                .with_dirty(true)
 8932                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8933                .with_project_items(&[
 8934                    single_entry_items[2].read(cx).project_items[0].clone(),
 8935                    single_entry_items[3].read(cx).project_items[0].clone(),
 8936                ])
 8937        });
 8938        let item_3_4 = cx.new(|cx| {
 8939            TestItem::new(cx)
 8940                .with_dirty(true)
 8941                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8942                .with_project_items(&[
 8943                    single_entry_items[3].read(cx).project_items[0].clone(),
 8944                    single_entry_items[4].read(cx).project_items[0].clone(),
 8945                ])
 8946        });
 8947
 8948        // Create two panes that contain the following project entries:
 8949        //   left pane:
 8950        //     multi-entry items:   (2, 3)
 8951        //     single-entry items:  0, 2, 3, 4
 8952        //   right pane:
 8953        //     single-entry items:  4, 1
 8954        //     multi-entry items:   (3, 4)
 8955        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8956            let left_pane = workspace.active_pane().clone();
 8957            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8958            workspace.add_item_to_active_pane(
 8959                single_entry_items[0].boxed_clone(),
 8960                None,
 8961                true,
 8962                window,
 8963                cx,
 8964            );
 8965            workspace.add_item_to_active_pane(
 8966                single_entry_items[2].boxed_clone(),
 8967                None,
 8968                true,
 8969                window,
 8970                cx,
 8971            );
 8972            workspace.add_item_to_active_pane(
 8973                single_entry_items[3].boxed_clone(),
 8974                None,
 8975                true,
 8976                window,
 8977                cx,
 8978            );
 8979            workspace.add_item_to_active_pane(
 8980                single_entry_items[4].boxed_clone(),
 8981                None,
 8982                true,
 8983                window,
 8984                cx,
 8985            );
 8986
 8987            let right_pane =
 8988                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 8989
 8990            let boxed_clone = single_entry_items[1].boxed_clone();
 8991            let right_pane = window.spawn(cx, async move |cx| {
 8992                right_pane.await.inspect(|right_pane| {
 8993                    right_pane
 8994                        .update_in(cx, |pane, window, cx| {
 8995                            pane.add_item(boxed_clone, true, true, None, window, cx);
 8996                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8997                        })
 8998                        .unwrap();
 8999                })
 9000            });
 9001
 9002            (left_pane, right_pane)
 9003        });
 9004        let right_pane = right_pane.await.unwrap();
 9005        cx.focus(&right_pane);
 9006
 9007        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9008            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9009                .unwrap()
 9010        });
 9011        cx.executor().run_until_parked();
 9012
 9013        let msg = cx.pending_prompt().unwrap().0;
 9014        assert!(msg.contains("1.txt"));
 9015        assert!(!msg.contains("2.txt"));
 9016        assert!(!msg.contains("3.txt"));
 9017        assert!(!msg.contains("4.txt"));
 9018
 9019        cx.simulate_prompt_answer("Cancel");
 9020        close.await;
 9021
 9022        left_pane
 9023            .update_in(cx, |left_pane, window, cx| {
 9024                left_pane.close_item_by_id(
 9025                    single_entry_items[3].entity_id(),
 9026                    SaveIntent::Skip,
 9027                    window,
 9028                    cx,
 9029                )
 9030            })
 9031            .await
 9032            .unwrap();
 9033
 9034        close = right_pane.update_in(cx, |pane, window, cx| {
 9035            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9036                .unwrap()
 9037        });
 9038        cx.executor().run_until_parked();
 9039
 9040        let details = cx.pending_prompt().unwrap().1;
 9041        assert!(details.contains("1.txt"));
 9042        assert!(!details.contains("2.txt"));
 9043        assert!(details.contains("3.txt"));
 9044        // ideally this assertion could be made, but today we can only
 9045        // save whole items not project items, so the orphaned item 3 causes
 9046        // 4 to be saved too.
 9047        // assert!(!details.contains("4.txt"));
 9048
 9049        cx.simulate_prompt_answer("Save all");
 9050
 9051        cx.executor().run_until_parked();
 9052        close.await;
 9053        right_pane.read_with(cx, |pane, _| {
 9054            assert_eq!(pane.items_len(), 0);
 9055        });
 9056    }
 9057
 9058    #[gpui::test]
 9059    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9060        init_test(cx);
 9061
 9062        let fs = FakeFs::new(cx.executor());
 9063        let project = Project::test(fs, [], cx).await;
 9064        let (workspace, cx) =
 9065            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9066        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9067
 9068        let item = cx.new(|cx| {
 9069            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9070        });
 9071        let item_id = item.entity_id();
 9072        workspace.update_in(cx, |workspace, window, cx| {
 9073            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9074        });
 9075
 9076        // Autosave on window change.
 9077        item.update(cx, |item, cx| {
 9078            SettingsStore::update_global(cx, |settings, cx| {
 9079                settings.update_user_settings(cx, |settings| {
 9080                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9081                })
 9082            });
 9083            item.is_dirty = true;
 9084        });
 9085
 9086        // Deactivating the window saves the file.
 9087        cx.deactivate_window();
 9088        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9089
 9090        // Re-activating the window doesn't save the file.
 9091        cx.update(|window, _| window.activate_window());
 9092        cx.executor().run_until_parked();
 9093        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9094
 9095        // Autosave on focus change.
 9096        item.update_in(cx, |item, window, cx| {
 9097            cx.focus_self(window);
 9098            SettingsStore::update_global(cx, |settings, cx| {
 9099                settings.update_user_settings(cx, |settings| {
 9100                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9101                })
 9102            });
 9103            item.is_dirty = true;
 9104        });
 9105        // Blurring the item saves the file.
 9106        item.update_in(cx, |_, window, _| window.blur());
 9107        cx.executor().run_until_parked();
 9108        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9109
 9110        // Deactivating the window still saves the file.
 9111        item.update_in(cx, |item, window, cx| {
 9112            cx.focus_self(window);
 9113            item.is_dirty = true;
 9114        });
 9115        cx.deactivate_window();
 9116        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9117
 9118        // Autosave after delay.
 9119        item.update(cx, |item, cx| {
 9120            SettingsStore::update_global(cx, |settings, cx| {
 9121                settings.update_user_settings(cx, |settings| {
 9122                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9123                        milliseconds: 500.into(),
 9124                    });
 9125                })
 9126            });
 9127            item.is_dirty = true;
 9128            cx.emit(ItemEvent::Edit);
 9129        });
 9130
 9131        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9132        cx.executor().advance_clock(Duration::from_millis(250));
 9133        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9134
 9135        // After delay expires, the file is saved.
 9136        cx.executor().advance_clock(Duration::from_millis(250));
 9137        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9138
 9139        // Autosave after delay, should save earlier than delay if tab is closed
 9140        item.update(cx, |item, cx| {
 9141            item.is_dirty = true;
 9142            cx.emit(ItemEvent::Edit);
 9143        });
 9144        cx.executor().advance_clock(Duration::from_millis(250));
 9145        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9146
 9147        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9148        pane.update_in(cx, |pane, window, cx| {
 9149            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9150        })
 9151        .await
 9152        .unwrap();
 9153        assert!(!cx.has_pending_prompt());
 9154        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9155
 9156        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9157        workspace.update_in(cx, |workspace, window, cx| {
 9158            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9159        });
 9160        item.update_in(cx, |item, _window, cx| {
 9161            item.is_dirty = true;
 9162            for project_item in &mut item.project_items {
 9163                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9164            }
 9165        });
 9166        cx.run_until_parked();
 9167        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9168
 9169        // Autosave on focus change, ensuring closing the tab counts as such.
 9170        item.update(cx, |item, cx| {
 9171            SettingsStore::update_global(cx, |settings, cx| {
 9172                settings.update_user_settings(cx, |settings| {
 9173                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9174                })
 9175            });
 9176            item.is_dirty = true;
 9177            for project_item in &mut item.project_items {
 9178                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9179            }
 9180        });
 9181
 9182        pane.update_in(cx, |pane, window, cx| {
 9183            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9184        })
 9185        .await
 9186        .unwrap();
 9187        assert!(!cx.has_pending_prompt());
 9188        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9189
 9190        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9191        workspace.update_in(cx, |workspace, window, cx| {
 9192            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9193        });
 9194        item.update_in(cx, |item, window, cx| {
 9195            item.project_items[0].update(cx, |item, _| {
 9196                item.entry_id = None;
 9197            });
 9198            item.is_dirty = true;
 9199            window.blur();
 9200        });
 9201        cx.run_until_parked();
 9202        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9203
 9204        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9205        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9206            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9207        });
 9208        cx.run_until_parked();
 9209        assert!(cx.has_pending_prompt());
 9210        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9211    }
 9212
 9213    #[gpui::test]
 9214    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9215        init_test(cx);
 9216
 9217        let fs = FakeFs::new(cx.executor());
 9218
 9219        let project = Project::test(fs, [], cx).await;
 9220        let (workspace, cx) =
 9221            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9222
 9223        let item = cx.new(|cx| {
 9224            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9225        });
 9226        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9227        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9228        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9229
 9230        workspace.update_in(cx, |workspace, window, cx| {
 9231            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9232            let toolbar_notification_count = toolbar_notify_count.clone();
 9233            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9234                *toolbar_notification_count.borrow_mut() += 1
 9235            })
 9236            .detach();
 9237        });
 9238
 9239        pane.read_with(cx, |pane, _| {
 9240            assert!(!pane.can_navigate_backward());
 9241            assert!(!pane.can_navigate_forward());
 9242        });
 9243
 9244        item.update_in(cx, |item, _, cx| {
 9245            item.set_state("one".to_string(), cx);
 9246        });
 9247
 9248        // Toolbar must be notified to re-render the navigation buttons
 9249        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9250
 9251        pane.read_with(cx, |pane, _| {
 9252            assert!(pane.can_navigate_backward());
 9253            assert!(!pane.can_navigate_forward());
 9254        });
 9255
 9256        workspace
 9257            .update_in(cx, |workspace, window, cx| {
 9258                workspace.go_back(pane.downgrade(), window, cx)
 9259            })
 9260            .await
 9261            .unwrap();
 9262
 9263        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9264        pane.read_with(cx, |pane, _| {
 9265            assert!(!pane.can_navigate_backward());
 9266            assert!(pane.can_navigate_forward());
 9267        });
 9268    }
 9269
 9270    #[gpui::test]
 9271    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9272        init_test(cx);
 9273        let fs = FakeFs::new(cx.executor());
 9274
 9275        let project = Project::test(fs, [], cx).await;
 9276        let (workspace, cx) =
 9277            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9278
 9279        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9280            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9281            workspace.add_panel(panel.clone(), window, cx);
 9282
 9283            workspace
 9284                .right_dock()
 9285                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9286
 9287            panel
 9288        });
 9289
 9290        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9291        pane.update_in(cx, |pane, window, cx| {
 9292            let item = cx.new(TestItem::new);
 9293            pane.add_item(Box::new(item), true, true, None, window, cx);
 9294        });
 9295
 9296        // Transfer focus from center to panel
 9297        workspace.update_in(cx, |workspace, window, cx| {
 9298            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9299        });
 9300
 9301        workspace.update_in(cx, |workspace, window, cx| {
 9302            assert!(workspace.right_dock().read(cx).is_open());
 9303            assert!(!panel.is_zoomed(window, cx));
 9304            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9305        });
 9306
 9307        // Transfer focus from panel to center
 9308        workspace.update_in(cx, |workspace, window, cx| {
 9309            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9310        });
 9311
 9312        workspace.update_in(cx, |workspace, window, cx| {
 9313            assert!(workspace.right_dock().read(cx).is_open());
 9314            assert!(!panel.is_zoomed(window, cx));
 9315            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9316        });
 9317
 9318        // Close the dock
 9319        workspace.update_in(cx, |workspace, window, cx| {
 9320            workspace.toggle_dock(DockPosition::Right, window, cx);
 9321        });
 9322
 9323        workspace.update_in(cx, |workspace, window, cx| {
 9324            assert!(!workspace.right_dock().read(cx).is_open());
 9325            assert!(!panel.is_zoomed(window, cx));
 9326            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9327        });
 9328
 9329        // Open the dock
 9330        workspace.update_in(cx, |workspace, window, cx| {
 9331            workspace.toggle_dock(DockPosition::Right, window, cx);
 9332        });
 9333
 9334        workspace.update_in(cx, |workspace, window, cx| {
 9335            assert!(workspace.right_dock().read(cx).is_open());
 9336            assert!(!panel.is_zoomed(window, cx));
 9337            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9338        });
 9339
 9340        // Focus and zoom panel
 9341        panel.update_in(cx, |panel, window, cx| {
 9342            cx.focus_self(window);
 9343            panel.set_zoomed(true, window, cx)
 9344        });
 9345
 9346        workspace.update_in(cx, |workspace, window, cx| {
 9347            assert!(workspace.right_dock().read(cx).is_open());
 9348            assert!(panel.is_zoomed(window, cx));
 9349            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9350        });
 9351
 9352        // Transfer focus to the center closes the dock
 9353        workspace.update_in(cx, |workspace, window, cx| {
 9354            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9355        });
 9356
 9357        workspace.update_in(cx, |workspace, window, cx| {
 9358            assert!(!workspace.right_dock().read(cx).is_open());
 9359            assert!(panel.is_zoomed(window, cx));
 9360            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9361        });
 9362
 9363        // Transferring focus back to the panel keeps it zoomed
 9364        workspace.update_in(cx, |workspace, window, cx| {
 9365            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9366        });
 9367
 9368        workspace.update_in(cx, |workspace, window, cx| {
 9369            assert!(workspace.right_dock().read(cx).is_open());
 9370            assert!(panel.is_zoomed(window, cx));
 9371            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9372        });
 9373
 9374        // Close the dock while it is zoomed
 9375        workspace.update_in(cx, |workspace, window, cx| {
 9376            workspace.toggle_dock(DockPosition::Right, window, cx)
 9377        });
 9378
 9379        workspace.update_in(cx, |workspace, window, cx| {
 9380            assert!(!workspace.right_dock().read(cx).is_open());
 9381            assert!(panel.is_zoomed(window, cx));
 9382            assert!(workspace.zoomed.is_none());
 9383            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9384        });
 9385
 9386        // Opening the dock, when it's zoomed, retains focus
 9387        workspace.update_in(cx, |workspace, window, cx| {
 9388            workspace.toggle_dock(DockPosition::Right, window, cx)
 9389        });
 9390
 9391        workspace.update_in(cx, |workspace, window, cx| {
 9392            assert!(workspace.right_dock().read(cx).is_open());
 9393            assert!(panel.is_zoomed(window, cx));
 9394            assert!(workspace.zoomed.is_some());
 9395            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9396        });
 9397
 9398        // Unzoom and close the panel, zoom the active pane.
 9399        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9400        workspace.update_in(cx, |workspace, window, cx| {
 9401            workspace.toggle_dock(DockPosition::Right, window, cx)
 9402        });
 9403        pane.update_in(cx, |pane, window, cx| {
 9404            pane.toggle_zoom(&Default::default(), window, cx)
 9405        });
 9406
 9407        // Opening a dock unzooms the pane.
 9408        workspace.update_in(cx, |workspace, window, cx| {
 9409            workspace.toggle_dock(DockPosition::Right, window, cx)
 9410        });
 9411        workspace.update_in(cx, |workspace, window, cx| {
 9412            let pane = pane.read(cx);
 9413            assert!(!pane.is_zoomed());
 9414            assert!(!pane.focus_handle(cx).is_focused(window));
 9415            assert!(workspace.right_dock().read(cx).is_open());
 9416            assert!(workspace.zoomed.is_none());
 9417        });
 9418    }
 9419
 9420    #[gpui::test]
 9421    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9422        init_test(cx);
 9423        let fs = FakeFs::new(cx.executor());
 9424
 9425        let project = Project::test(fs, [], cx).await;
 9426        let (workspace, cx) =
 9427            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9428        workspace.update_in(cx, |workspace, window, cx| {
 9429            // Open two docks
 9430            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9431            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9432
 9433            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9434            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9435
 9436            assert!(left_dock.read(cx).is_open());
 9437            assert!(right_dock.read(cx).is_open());
 9438        });
 9439
 9440        workspace.update_in(cx, |workspace, window, cx| {
 9441            // Toggle all docks - should close both
 9442            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9443
 9444            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9445            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9446            assert!(!left_dock.read(cx).is_open());
 9447            assert!(!right_dock.read(cx).is_open());
 9448        });
 9449
 9450        workspace.update_in(cx, |workspace, window, cx| {
 9451            // Toggle again - should reopen both
 9452            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9453
 9454            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9455            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9456            assert!(left_dock.read(cx).is_open());
 9457            assert!(right_dock.read(cx).is_open());
 9458        });
 9459    }
 9460
 9461    #[gpui::test]
 9462    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9463        init_test(cx);
 9464        let fs = FakeFs::new(cx.executor());
 9465
 9466        let project = Project::test(fs, [], cx).await;
 9467        let (workspace, cx) =
 9468            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9469        workspace.update_in(cx, |workspace, window, cx| {
 9470            // Open two docks
 9471            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9472            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9473
 9474            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9475            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9476
 9477            assert!(left_dock.read(cx).is_open());
 9478            assert!(right_dock.read(cx).is_open());
 9479        });
 9480
 9481        workspace.update_in(cx, |workspace, window, cx| {
 9482            // Close them manually
 9483            workspace.toggle_dock(DockPosition::Left, window, cx);
 9484            workspace.toggle_dock(DockPosition::Right, window, cx);
 9485
 9486            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9487            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9488            assert!(!left_dock.read(cx).is_open());
 9489            assert!(!right_dock.read(cx).is_open());
 9490        });
 9491
 9492        workspace.update_in(cx, |workspace, window, cx| {
 9493            // Toggle all docks - only last closed (right dock) should reopen
 9494            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9495
 9496            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9497            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9498            assert!(!left_dock.read(cx).is_open());
 9499            assert!(right_dock.read(cx).is_open());
 9500        });
 9501    }
 9502
 9503    #[gpui::test]
 9504    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9505        init_test(cx);
 9506        let fs = FakeFs::new(cx.executor());
 9507        let project = Project::test(fs, [], cx).await;
 9508        let (workspace, cx) =
 9509            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9510
 9511        // Open two docks (left and right) with one panel each
 9512        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9513            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9514            workspace.add_panel(left_panel.clone(), window, cx);
 9515
 9516            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9517            workspace.add_panel(right_panel.clone(), window, cx);
 9518
 9519            workspace.toggle_dock(DockPosition::Left, window, cx);
 9520            workspace.toggle_dock(DockPosition::Right, window, cx);
 9521
 9522            // Verify initial state
 9523            assert!(
 9524                workspace.left_dock().read(cx).is_open(),
 9525                "Left dock should be open"
 9526            );
 9527            assert_eq!(
 9528                workspace
 9529                    .left_dock()
 9530                    .read(cx)
 9531                    .visible_panel()
 9532                    .unwrap()
 9533                    .panel_id(),
 9534                left_panel.panel_id(),
 9535                "Left panel should be visible in left dock"
 9536            );
 9537            assert!(
 9538                workspace.right_dock().read(cx).is_open(),
 9539                "Right dock should be open"
 9540            );
 9541            assert_eq!(
 9542                workspace
 9543                    .right_dock()
 9544                    .read(cx)
 9545                    .visible_panel()
 9546                    .unwrap()
 9547                    .panel_id(),
 9548                right_panel.panel_id(),
 9549                "Right panel should be visible in right dock"
 9550            );
 9551            assert!(
 9552                !workspace.bottom_dock().read(cx).is_open(),
 9553                "Bottom dock should be closed"
 9554            );
 9555
 9556            (left_panel, right_panel)
 9557        });
 9558
 9559        // Focus the left panel and move it to the next position (bottom dock)
 9560        workspace.update_in(cx, |workspace, window, cx| {
 9561            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
 9562            assert!(
 9563                left_panel.read(cx).focus_handle(cx).is_focused(window),
 9564                "Left panel should be focused"
 9565            );
 9566        });
 9567
 9568        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9569
 9570        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
 9571        workspace.update(cx, |workspace, cx| {
 9572            assert!(
 9573                !workspace.left_dock().read(cx).is_open(),
 9574                "Left dock should be closed"
 9575            );
 9576            assert!(
 9577                workspace.bottom_dock().read(cx).is_open(),
 9578                "Bottom dock should now be open"
 9579            );
 9580            assert_eq!(
 9581                left_panel.read(cx).position,
 9582                DockPosition::Bottom,
 9583                "Left panel should now be in the bottom dock"
 9584            );
 9585            assert_eq!(
 9586                workspace
 9587                    .bottom_dock()
 9588                    .read(cx)
 9589                    .visible_panel()
 9590                    .unwrap()
 9591                    .panel_id(),
 9592                left_panel.panel_id(),
 9593                "Left panel should be the visible panel in the bottom dock"
 9594            );
 9595        });
 9596
 9597        // Toggle all docks off
 9598        workspace.update_in(cx, |workspace, window, cx| {
 9599            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9600            assert!(
 9601                !workspace.left_dock().read(cx).is_open(),
 9602                "Left dock should be closed"
 9603            );
 9604            assert!(
 9605                !workspace.right_dock().read(cx).is_open(),
 9606                "Right dock should be closed"
 9607            );
 9608            assert!(
 9609                !workspace.bottom_dock().read(cx).is_open(),
 9610                "Bottom dock should be closed"
 9611            );
 9612        });
 9613
 9614        // Toggle all docks back on and verify positions are restored
 9615        workspace.update_in(cx, |workspace, window, cx| {
 9616            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9617            assert!(
 9618                !workspace.left_dock().read(cx).is_open(),
 9619                "Left dock should remain closed"
 9620            );
 9621            assert!(
 9622                workspace.right_dock().read(cx).is_open(),
 9623                "Right dock should remain open"
 9624            );
 9625            assert!(
 9626                workspace.bottom_dock().read(cx).is_open(),
 9627                "Bottom dock should remain open"
 9628            );
 9629            assert_eq!(
 9630                left_panel.read(cx).position,
 9631                DockPosition::Bottom,
 9632                "Left panel should remain in the bottom dock"
 9633            );
 9634            assert_eq!(
 9635                right_panel.read(cx).position,
 9636                DockPosition::Right,
 9637                "Right panel should remain in the right dock"
 9638            );
 9639            assert_eq!(
 9640                workspace
 9641                    .bottom_dock()
 9642                    .read(cx)
 9643                    .visible_panel()
 9644                    .unwrap()
 9645                    .panel_id(),
 9646                left_panel.panel_id(),
 9647                "Left panel should be the visible panel in the right dock"
 9648            );
 9649        });
 9650    }
 9651
 9652    #[gpui::test]
 9653    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 9654        init_test(cx);
 9655
 9656        let fs = FakeFs::new(cx.executor());
 9657
 9658        let project = Project::test(fs, None, cx).await;
 9659        let (workspace, cx) =
 9660            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9661
 9662        // Let's arrange the panes like this:
 9663        //
 9664        // +-----------------------+
 9665        // |         top           |
 9666        // +------+--------+-------+
 9667        // | left | center | right |
 9668        // +------+--------+-------+
 9669        // |        bottom         |
 9670        // +-----------------------+
 9671
 9672        let top_item = cx.new(|cx| {
 9673            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9674        });
 9675        let bottom_item = cx.new(|cx| {
 9676            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9677        });
 9678        let left_item = cx.new(|cx| {
 9679            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9680        });
 9681        let right_item = cx.new(|cx| {
 9682            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9683        });
 9684        let center_item = cx.new(|cx| {
 9685            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9686        });
 9687
 9688        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9689            let top_pane_id = workspace.active_pane().entity_id();
 9690            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9691            workspace.split_pane(
 9692                workspace.active_pane().clone(),
 9693                SplitDirection::Down,
 9694                window,
 9695                cx,
 9696            );
 9697            top_pane_id
 9698        });
 9699        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9700            let bottom_pane_id = workspace.active_pane().entity_id();
 9701            workspace.add_item_to_active_pane(
 9702                Box::new(bottom_item.clone()),
 9703                None,
 9704                false,
 9705                window,
 9706                cx,
 9707            );
 9708            workspace.split_pane(
 9709                workspace.active_pane().clone(),
 9710                SplitDirection::Up,
 9711                window,
 9712                cx,
 9713            );
 9714            bottom_pane_id
 9715        });
 9716        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9717            let left_pane_id = workspace.active_pane().entity_id();
 9718            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9719            workspace.split_pane(
 9720                workspace.active_pane().clone(),
 9721                SplitDirection::Right,
 9722                window,
 9723                cx,
 9724            );
 9725            left_pane_id
 9726        });
 9727        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9728            let right_pane_id = workspace.active_pane().entity_id();
 9729            workspace.add_item_to_active_pane(
 9730                Box::new(right_item.clone()),
 9731                None,
 9732                false,
 9733                window,
 9734                cx,
 9735            );
 9736            workspace.split_pane(
 9737                workspace.active_pane().clone(),
 9738                SplitDirection::Left,
 9739                window,
 9740                cx,
 9741            );
 9742            right_pane_id
 9743        });
 9744        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9745            let center_pane_id = workspace.active_pane().entity_id();
 9746            workspace.add_item_to_active_pane(
 9747                Box::new(center_item.clone()),
 9748                None,
 9749                false,
 9750                window,
 9751                cx,
 9752            );
 9753            center_pane_id
 9754        });
 9755        cx.executor().run_until_parked();
 9756
 9757        workspace.update_in(cx, |workspace, window, cx| {
 9758            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9759
 9760            // Join into next from center pane into right
 9761            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9762        });
 9763
 9764        workspace.update_in(cx, |workspace, window, cx| {
 9765            let active_pane = workspace.active_pane();
 9766            assert_eq!(right_pane_id, active_pane.entity_id());
 9767            assert_eq!(2, active_pane.read(cx).items_len());
 9768            let item_ids_in_pane =
 9769                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9770            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9771            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9772
 9773            // Join into next from right pane into bottom
 9774            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9775        });
 9776
 9777        workspace.update_in(cx, |workspace, window, cx| {
 9778            let active_pane = workspace.active_pane();
 9779            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9780            assert_eq!(3, active_pane.read(cx).items_len());
 9781            let item_ids_in_pane =
 9782                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9783            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9784            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9785            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9786
 9787            // Join into next from bottom pane into left
 9788            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9789        });
 9790
 9791        workspace.update_in(cx, |workspace, window, cx| {
 9792            let active_pane = workspace.active_pane();
 9793            assert_eq!(left_pane_id, active_pane.entity_id());
 9794            assert_eq!(4, active_pane.read(cx).items_len());
 9795            let item_ids_in_pane =
 9796                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9797            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9798            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9799            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9800            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9801
 9802            // Join into next from left pane into top
 9803            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9804        });
 9805
 9806        workspace.update_in(cx, |workspace, window, cx| {
 9807            let active_pane = workspace.active_pane();
 9808            assert_eq!(top_pane_id, active_pane.entity_id());
 9809            assert_eq!(5, active_pane.read(cx).items_len());
 9810            let item_ids_in_pane =
 9811                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9812            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9813            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9814            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9815            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9816            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9817
 9818            // Single pane left: no-op
 9819            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9820        });
 9821
 9822        workspace.update(cx, |workspace, _cx| {
 9823            let active_pane = workspace.active_pane();
 9824            assert_eq!(top_pane_id, active_pane.entity_id());
 9825        });
 9826    }
 9827
 9828    fn add_an_item_to_active_pane(
 9829        cx: &mut VisualTestContext,
 9830        workspace: &Entity<Workspace>,
 9831        item_id: u64,
 9832    ) -> Entity<TestItem> {
 9833        let item = cx.new(|cx| {
 9834            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9835                item_id,
 9836                "item{item_id}.txt",
 9837                cx,
 9838            )])
 9839        });
 9840        workspace.update_in(cx, |workspace, window, cx| {
 9841            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9842        });
 9843        item
 9844    }
 9845
 9846    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9847        workspace.update_in(cx, |workspace, window, cx| {
 9848            workspace.split_pane(
 9849                workspace.active_pane().clone(),
 9850                SplitDirection::Right,
 9851                window,
 9852                cx,
 9853            )
 9854        })
 9855    }
 9856
 9857    #[gpui::test]
 9858    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9859        init_test(cx);
 9860        let fs = FakeFs::new(cx.executor());
 9861        let project = Project::test(fs, None, cx).await;
 9862        let (workspace, cx) =
 9863            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9864
 9865        add_an_item_to_active_pane(cx, &workspace, 1);
 9866        split_pane(cx, &workspace);
 9867        add_an_item_to_active_pane(cx, &workspace, 2);
 9868        split_pane(cx, &workspace); // empty pane
 9869        split_pane(cx, &workspace);
 9870        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9871
 9872        cx.executor().run_until_parked();
 9873
 9874        workspace.update(cx, |workspace, cx| {
 9875            let num_panes = workspace.panes().len();
 9876            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9877            let active_item = workspace
 9878                .active_pane()
 9879                .read(cx)
 9880                .active_item()
 9881                .expect("item is in focus");
 9882
 9883            assert_eq!(num_panes, 4);
 9884            assert_eq!(num_items_in_current_pane, 1);
 9885            assert_eq!(active_item.item_id(), last_item.item_id());
 9886        });
 9887
 9888        workspace.update_in(cx, |workspace, window, cx| {
 9889            workspace.join_all_panes(window, cx);
 9890        });
 9891
 9892        workspace.update(cx, |workspace, cx| {
 9893            let num_panes = workspace.panes().len();
 9894            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9895            let active_item = workspace
 9896                .active_pane()
 9897                .read(cx)
 9898                .active_item()
 9899                .expect("item is in focus");
 9900
 9901            assert_eq!(num_panes, 1);
 9902            assert_eq!(num_items_in_current_pane, 3);
 9903            assert_eq!(active_item.item_id(), last_item.item_id());
 9904        });
 9905    }
 9906    struct TestModal(FocusHandle);
 9907
 9908    impl TestModal {
 9909        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9910            Self(cx.focus_handle())
 9911        }
 9912    }
 9913
 9914    impl EventEmitter<DismissEvent> for TestModal {}
 9915
 9916    impl Focusable for TestModal {
 9917        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9918            self.0.clone()
 9919        }
 9920    }
 9921
 9922    impl ModalView for TestModal {}
 9923
 9924    impl Render for TestModal {
 9925        fn render(
 9926            &mut self,
 9927            _window: &mut Window,
 9928            _cx: &mut Context<TestModal>,
 9929        ) -> impl IntoElement {
 9930            div().track_focus(&self.0)
 9931        }
 9932    }
 9933
 9934    #[gpui::test]
 9935    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9936        init_test(cx);
 9937        let fs = FakeFs::new(cx.executor());
 9938
 9939        let project = Project::test(fs, [], cx).await;
 9940        let (workspace, cx) =
 9941            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9942
 9943        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9944            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9945            workspace.add_panel(panel_1.clone(), window, cx);
 9946            workspace.toggle_dock(DockPosition::Left, window, cx);
 9947            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9948            workspace.add_panel(panel_2.clone(), window, cx);
 9949            workspace.toggle_dock(DockPosition::Right, window, cx);
 9950
 9951            let left_dock = workspace.left_dock();
 9952            assert_eq!(
 9953                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9954                panel_1.panel_id()
 9955            );
 9956            assert_eq!(
 9957                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9958                panel_1.size(window, cx)
 9959            );
 9960
 9961            left_dock.update(cx, |left_dock, cx| {
 9962                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9963            });
 9964            assert_eq!(
 9965                workspace
 9966                    .right_dock()
 9967                    .read(cx)
 9968                    .visible_panel()
 9969                    .unwrap()
 9970                    .panel_id(),
 9971                panel_2.panel_id(),
 9972            );
 9973
 9974            (panel_1, panel_2)
 9975        });
 9976
 9977        // Move panel_1 to the right
 9978        panel_1.update_in(cx, |panel_1, window, cx| {
 9979            panel_1.set_position(DockPosition::Right, window, cx)
 9980        });
 9981
 9982        workspace.update_in(cx, |workspace, window, cx| {
 9983            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9984            // Since it was the only panel on the left, the left dock should now be closed.
 9985            assert!(!workspace.left_dock().read(cx).is_open());
 9986            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9987            let right_dock = workspace.right_dock();
 9988            assert_eq!(
 9989                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9990                panel_1.panel_id()
 9991            );
 9992            assert_eq!(
 9993                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9994                px(1337.)
 9995            );
 9996
 9997            // Now we move panel_2 to the left
 9998            panel_2.set_position(DockPosition::Left, window, cx);
 9999        });
10000
10001        workspace.update(cx, |workspace, cx| {
10002            // Since panel_2 was not visible on the right, we don't open the left dock.
10003            assert!(!workspace.left_dock().read(cx).is_open());
10004            // And the right dock is unaffected in its displaying of panel_1
10005            assert!(workspace.right_dock().read(cx).is_open());
10006            assert_eq!(
10007                workspace
10008                    .right_dock()
10009                    .read(cx)
10010                    .visible_panel()
10011                    .unwrap()
10012                    .panel_id(),
10013                panel_1.panel_id(),
10014            );
10015        });
10016
10017        // Move panel_1 back to the left
10018        panel_1.update_in(cx, |panel_1, window, cx| {
10019            panel_1.set_position(DockPosition::Left, window, cx)
10020        });
10021
10022        workspace.update_in(cx, |workspace, window, cx| {
10023            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10024            let left_dock = workspace.left_dock();
10025            assert!(left_dock.read(cx).is_open());
10026            assert_eq!(
10027                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10028                panel_1.panel_id()
10029            );
10030            assert_eq!(
10031                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10032                px(1337.)
10033            );
10034            // And the right dock should be closed as it no longer has any panels.
10035            assert!(!workspace.right_dock().read(cx).is_open());
10036
10037            // Now we move panel_1 to the bottom
10038            panel_1.set_position(DockPosition::Bottom, window, cx);
10039        });
10040
10041        workspace.update_in(cx, |workspace, window, cx| {
10042            // Since panel_1 was visible on the left, we close the left dock.
10043            assert!(!workspace.left_dock().read(cx).is_open());
10044            // The bottom dock is sized based on the panel's default size,
10045            // since the panel orientation changed from vertical to horizontal.
10046            let bottom_dock = workspace.bottom_dock();
10047            assert_eq!(
10048                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10049                panel_1.size(window, cx),
10050            );
10051            // Close bottom dock and move panel_1 back to the left.
10052            bottom_dock.update(cx, |bottom_dock, cx| {
10053                bottom_dock.set_open(false, window, cx)
10054            });
10055            panel_1.set_position(DockPosition::Left, window, cx);
10056        });
10057
10058        // Emit activated event on panel 1
10059        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10060
10061        // Now the left dock is open and panel_1 is active and focused.
10062        workspace.update_in(cx, |workspace, window, cx| {
10063            let left_dock = workspace.left_dock();
10064            assert!(left_dock.read(cx).is_open());
10065            assert_eq!(
10066                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10067                panel_1.panel_id(),
10068            );
10069            assert!(panel_1.focus_handle(cx).is_focused(window));
10070        });
10071
10072        // Emit closed event on panel 2, which is not active
10073        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10074
10075        // Wo don't close the left dock, because panel_2 wasn't the active panel
10076        workspace.update(cx, |workspace, cx| {
10077            let left_dock = workspace.left_dock();
10078            assert!(left_dock.read(cx).is_open());
10079            assert_eq!(
10080                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10081                panel_1.panel_id(),
10082            );
10083        });
10084
10085        // Emitting a ZoomIn event shows the panel as zoomed.
10086        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10087        workspace.read_with(cx, |workspace, _| {
10088            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10089            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10090        });
10091
10092        // Move panel to another dock while it is zoomed
10093        panel_1.update_in(cx, |panel, window, cx| {
10094            panel.set_position(DockPosition::Right, window, cx)
10095        });
10096        workspace.read_with(cx, |workspace, _| {
10097            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10098
10099            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10100        });
10101
10102        // This is a helper for getting a:
10103        // - valid focus on an element,
10104        // - that isn't a part of the panes and panels system of the Workspace,
10105        // - and doesn't trigger the 'on_focus_lost' API.
10106        let focus_other_view = {
10107            let workspace = workspace.clone();
10108            move |cx: &mut VisualTestContext| {
10109                workspace.update_in(cx, |workspace, window, cx| {
10110                    if workspace.active_modal::<TestModal>(cx).is_some() {
10111                        workspace.toggle_modal(window, cx, TestModal::new);
10112                        workspace.toggle_modal(window, cx, TestModal::new);
10113                    } else {
10114                        workspace.toggle_modal(window, cx, TestModal::new);
10115                    }
10116                })
10117            }
10118        };
10119
10120        // If focus is transferred to another view that's not a panel or another pane, we still show
10121        // the panel as zoomed.
10122        focus_other_view(cx);
10123        workspace.read_with(cx, |workspace, _| {
10124            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10125            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10126        });
10127
10128        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10129        workspace.update_in(cx, |_workspace, window, cx| {
10130            cx.focus_self(window);
10131        });
10132        workspace.read_with(cx, |workspace, _| {
10133            assert_eq!(workspace.zoomed, None);
10134            assert_eq!(workspace.zoomed_position, None);
10135        });
10136
10137        // If focus is transferred again to another view that's not a panel or a pane, we won't
10138        // show the panel as zoomed because it wasn't zoomed before.
10139        focus_other_view(cx);
10140        workspace.read_with(cx, |workspace, _| {
10141            assert_eq!(workspace.zoomed, None);
10142            assert_eq!(workspace.zoomed_position, None);
10143        });
10144
10145        // When the panel is activated, it is zoomed again.
10146        cx.dispatch_action(ToggleRightDock);
10147        workspace.read_with(cx, |workspace, _| {
10148            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10149            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10150        });
10151
10152        // Emitting a ZoomOut event unzooms the panel.
10153        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10154        workspace.read_with(cx, |workspace, _| {
10155            assert_eq!(workspace.zoomed, None);
10156            assert_eq!(workspace.zoomed_position, None);
10157        });
10158
10159        // Emit closed event on panel 1, which is active
10160        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10161
10162        // Now the left dock is closed, because panel_1 was the active panel
10163        workspace.update(cx, |workspace, cx| {
10164            let right_dock = workspace.right_dock();
10165            assert!(!right_dock.read(cx).is_open());
10166        });
10167    }
10168
10169    #[gpui::test]
10170    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10171        init_test(cx);
10172
10173        let fs = FakeFs::new(cx.background_executor.clone());
10174        let project = Project::test(fs, [], cx).await;
10175        let (workspace, cx) =
10176            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10177        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10178
10179        let dirty_regular_buffer = cx.new(|cx| {
10180            TestItem::new(cx)
10181                .with_dirty(true)
10182                .with_label("1.txt")
10183                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10184        });
10185        let dirty_regular_buffer_2 = cx.new(|cx| {
10186            TestItem::new(cx)
10187                .with_dirty(true)
10188                .with_label("2.txt")
10189                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10190        });
10191        let dirty_multi_buffer_with_both = cx.new(|cx| {
10192            TestItem::new(cx)
10193                .with_dirty(true)
10194                .with_buffer_kind(ItemBufferKind::Multibuffer)
10195                .with_label("Fake Project Search")
10196                .with_project_items(&[
10197                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10198                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10199                ])
10200        });
10201        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10202        workspace.update_in(cx, |workspace, window, cx| {
10203            workspace.add_item(
10204                pane.clone(),
10205                Box::new(dirty_regular_buffer.clone()),
10206                None,
10207                false,
10208                false,
10209                window,
10210                cx,
10211            );
10212            workspace.add_item(
10213                pane.clone(),
10214                Box::new(dirty_regular_buffer_2.clone()),
10215                None,
10216                false,
10217                false,
10218                window,
10219                cx,
10220            );
10221            workspace.add_item(
10222                pane.clone(),
10223                Box::new(dirty_multi_buffer_with_both.clone()),
10224                None,
10225                false,
10226                false,
10227                window,
10228                cx,
10229            );
10230        });
10231
10232        pane.update_in(cx, |pane, window, cx| {
10233            pane.activate_item(2, true, true, window, cx);
10234            assert_eq!(
10235                pane.active_item().unwrap().item_id(),
10236                multi_buffer_with_both_files_id,
10237                "Should select the multi buffer in the pane"
10238            );
10239        });
10240        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10241            pane.close_other_items(
10242                &CloseOtherItems {
10243                    save_intent: Some(SaveIntent::Save),
10244                    close_pinned: true,
10245                },
10246                None,
10247                window,
10248                cx,
10249            )
10250        });
10251        cx.background_executor.run_until_parked();
10252        assert!(!cx.has_pending_prompt());
10253        close_all_but_multi_buffer_task
10254            .await
10255            .expect("Closing all buffers but the multi buffer failed");
10256        pane.update(cx, |pane, cx| {
10257            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10258            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10259            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10260            assert_eq!(pane.items_len(), 1);
10261            assert_eq!(
10262                pane.active_item().unwrap().item_id(),
10263                multi_buffer_with_both_files_id,
10264                "Should have only the multi buffer left in the pane"
10265            );
10266            assert!(
10267                dirty_multi_buffer_with_both.read(cx).is_dirty,
10268                "The multi buffer containing the unsaved buffer should still be dirty"
10269            );
10270        });
10271
10272        dirty_regular_buffer.update(cx, |buffer, cx| {
10273            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10274        });
10275
10276        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10277            pane.close_active_item(
10278                &CloseActiveItem {
10279                    save_intent: Some(SaveIntent::Close),
10280                    close_pinned: false,
10281                },
10282                window,
10283                cx,
10284            )
10285        });
10286        cx.background_executor.run_until_parked();
10287        assert!(
10288            cx.has_pending_prompt(),
10289            "Dirty multi buffer should prompt a save dialog"
10290        );
10291        cx.simulate_prompt_answer("Save");
10292        cx.background_executor.run_until_parked();
10293        close_multi_buffer_task
10294            .await
10295            .expect("Closing the multi buffer failed");
10296        pane.update(cx, |pane, cx| {
10297            assert_eq!(
10298                dirty_multi_buffer_with_both.read(cx).save_count,
10299                1,
10300                "Multi buffer item should get be saved"
10301            );
10302            // Test impl does not save inner items, so we do not assert them
10303            assert_eq!(
10304                pane.items_len(),
10305                0,
10306                "No more items should be left in the pane"
10307            );
10308            assert!(pane.active_item().is_none());
10309        });
10310    }
10311
10312    #[gpui::test]
10313    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10314        cx: &mut TestAppContext,
10315    ) {
10316        init_test(cx);
10317
10318        let fs = FakeFs::new(cx.background_executor.clone());
10319        let project = Project::test(fs, [], cx).await;
10320        let (workspace, cx) =
10321            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10322        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10323
10324        let dirty_regular_buffer = cx.new(|cx| {
10325            TestItem::new(cx)
10326                .with_dirty(true)
10327                .with_label("1.txt")
10328                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10329        });
10330        let dirty_regular_buffer_2 = cx.new(|cx| {
10331            TestItem::new(cx)
10332                .with_dirty(true)
10333                .with_label("2.txt")
10334                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10335        });
10336        let clear_regular_buffer = cx.new(|cx| {
10337            TestItem::new(cx)
10338                .with_label("3.txt")
10339                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10340        });
10341
10342        let dirty_multi_buffer_with_both = cx.new(|cx| {
10343            TestItem::new(cx)
10344                .with_dirty(true)
10345                .with_buffer_kind(ItemBufferKind::Multibuffer)
10346                .with_label("Fake Project Search")
10347                .with_project_items(&[
10348                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10349                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10350                    clear_regular_buffer.read(cx).project_items[0].clone(),
10351                ])
10352        });
10353        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10354        workspace.update_in(cx, |workspace, window, cx| {
10355            workspace.add_item(
10356                pane.clone(),
10357                Box::new(dirty_regular_buffer.clone()),
10358                None,
10359                false,
10360                false,
10361                window,
10362                cx,
10363            );
10364            workspace.add_item(
10365                pane.clone(),
10366                Box::new(dirty_multi_buffer_with_both.clone()),
10367                None,
10368                false,
10369                false,
10370                window,
10371                cx,
10372            );
10373        });
10374
10375        pane.update_in(cx, |pane, window, cx| {
10376            pane.activate_item(1, true, true, window, cx);
10377            assert_eq!(
10378                pane.active_item().unwrap().item_id(),
10379                multi_buffer_with_both_files_id,
10380                "Should select the multi buffer in the pane"
10381            );
10382        });
10383        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10384            pane.close_active_item(
10385                &CloseActiveItem {
10386                    save_intent: None,
10387                    close_pinned: false,
10388                },
10389                window,
10390                cx,
10391            )
10392        });
10393        cx.background_executor.run_until_parked();
10394        assert!(
10395            cx.has_pending_prompt(),
10396            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10397        );
10398    }
10399
10400    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10401    /// closed when they are deleted from disk.
10402    #[gpui::test]
10403    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10404        init_test(cx);
10405
10406        // Enable the close_on_disk_deletion setting
10407        cx.update_global(|store: &mut SettingsStore, cx| {
10408            store.update_user_settings(cx, |settings| {
10409                settings.workspace.close_on_file_delete = Some(true);
10410            });
10411        });
10412
10413        let fs = FakeFs::new(cx.background_executor.clone());
10414        let project = Project::test(fs, [], cx).await;
10415        let (workspace, cx) =
10416            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10417        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10418
10419        // Create a test item that simulates a file
10420        let item = cx.new(|cx| {
10421            TestItem::new(cx)
10422                .with_label("test.txt")
10423                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10424        });
10425
10426        // Add item to workspace
10427        workspace.update_in(cx, |workspace, window, cx| {
10428            workspace.add_item(
10429                pane.clone(),
10430                Box::new(item.clone()),
10431                None,
10432                false,
10433                false,
10434                window,
10435                cx,
10436            );
10437        });
10438
10439        // Verify the item is in the pane
10440        pane.read_with(cx, |pane, _| {
10441            assert_eq!(pane.items().count(), 1);
10442        });
10443
10444        // Simulate file deletion by setting the item's deleted state
10445        item.update(cx, |item, _| {
10446            item.set_has_deleted_file(true);
10447        });
10448
10449        // Emit UpdateTab event to trigger the close behavior
10450        cx.run_until_parked();
10451        item.update(cx, |_, cx| {
10452            cx.emit(ItemEvent::UpdateTab);
10453        });
10454
10455        // Allow the close operation to complete
10456        cx.run_until_parked();
10457
10458        // Verify the item was automatically closed
10459        pane.read_with(cx, |pane, _| {
10460            assert_eq!(
10461                pane.items().count(),
10462                0,
10463                "Item should be automatically closed when file is deleted"
10464            );
10465        });
10466    }
10467
10468    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10469    /// open with a strikethrough when they are deleted from disk.
10470    #[gpui::test]
10471    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10472        init_test(cx);
10473
10474        // Ensure close_on_disk_deletion is disabled (default)
10475        cx.update_global(|store: &mut SettingsStore, cx| {
10476            store.update_user_settings(cx, |settings| {
10477                settings.workspace.close_on_file_delete = Some(false);
10478            });
10479        });
10480
10481        let fs = FakeFs::new(cx.background_executor.clone());
10482        let project = Project::test(fs, [], cx).await;
10483        let (workspace, cx) =
10484            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10485        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10486
10487        // Create a test item that simulates a file
10488        let item = cx.new(|cx| {
10489            TestItem::new(cx)
10490                .with_label("test.txt")
10491                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10492        });
10493
10494        // Add item to workspace
10495        workspace.update_in(cx, |workspace, window, cx| {
10496            workspace.add_item(
10497                pane.clone(),
10498                Box::new(item.clone()),
10499                None,
10500                false,
10501                false,
10502                window,
10503                cx,
10504            );
10505        });
10506
10507        // Verify the item is in the pane
10508        pane.read_with(cx, |pane, _| {
10509            assert_eq!(pane.items().count(), 1);
10510        });
10511
10512        // Simulate file deletion
10513        item.update(cx, |item, _| {
10514            item.set_has_deleted_file(true);
10515        });
10516
10517        // Emit UpdateTab event
10518        cx.run_until_parked();
10519        item.update(cx, |_, cx| {
10520            cx.emit(ItemEvent::UpdateTab);
10521        });
10522
10523        // Allow any potential close operation to complete
10524        cx.run_until_parked();
10525
10526        // Verify the item remains open (with strikethrough)
10527        pane.read_with(cx, |pane, _| {
10528            assert_eq!(
10529                pane.items().count(),
10530                1,
10531                "Item should remain open when close_on_disk_deletion is disabled"
10532            );
10533        });
10534
10535        // Verify the item shows as deleted
10536        item.read_with(cx, |item, _| {
10537            assert!(
10538                item.has_deleted_file,
10539                "Item should be marked as having deleted file"
10540            );
10541        });
10542    }
10543
10544    /// Tests that dirty files are not automatically closed when deleted from disk,
10545    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
10546    /// unsaved changes without being prompted.
10547    #[gpui::test]
10548    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10549        init_test(cx);
10550
10551        // Enable the close_on_file_delete setting
10552        cx.update_global(|store: &mut SettingsStore, cx| {
10553            store.update_user_settings(cx, |settings| {
10554                settings.workspace.close_on_file_delete = Some(true);
10555            });
10556        });
10557
10558        let fs = FakeFs::new(cx.background_executor.clone());
10559        let project = Project::test(fs, [], cx).await;
10560        let (workspace, cx) =
10561            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10562        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10563
10564        // Create a dirty test item
10565        let item = cx.new(|cx| {
10566            TestItem::new(cx)
10567                .with_dirty(true)
10568                .with_label("test.txt")
10569                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10570        });
10571
10572        // Add item to workspace
10573        workspace.update_in(cx, |workspace, window, cx| {
10574            workspace.add_item(
10575                pane.clone(),
10576                Box::new(item.clone()),
10577                None,
10578                false,
10579                false,
10580                window,
10581                cx,
10582            );
10583        });
10584
10585        // Simulate file deletion
10586        item.update(cx, |item, _| {
10587            item.set_has_deleted_file(true);
10588        });
10589
10590        // Emit UpdateTab event to trigger the close behavior
10591        cx.run_until_parked();
10592        item.update(cx, |_, cx| {
10593            cx.emit(ItemEvent::UpdateTab);
10594        });
10595
10596        // Allow any potential close operation to complete
10597        cx.run_until_parked();
10598
10599        // Verify the item remains open (dirty files are not auto-closed)
10600        pane.read_with(cx, |pane, _| {
10601            assert_eq!(
10602                pane.items().count(),
10603                1,
10604                "Dirty items should not be automatically closed even when file is deleted"
10605            );
10606        });
10607
10608        // Verify the item is marked as deleted and still dirty
10609        item.read_with(cx, |item, _| {
10610            assert!(
10611                item.has_deleted_file,
10612                "Item should be marked as having deleted file"
10613            );
10614            assert!(item.is_dirty, "Item should still be dirty");
10615        });
10616    }
10617
10618    /// Tests that navigation history is cleaned up when files are auto-closed
10619    /// due to deletion from disk.
10620    #[gpui::test]
10621    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
10622        init_test(cx);
10623
10624        // Enable the close_on_file_delete setting
10625        cx.update_global(|store: &mut SettingsStore, cx| {
10626            store.update_user_settings(cx, |settings| {
10627                settings.workspace.close_on_file_delete = Some(true);
10628            });
10629        });
10630
10631        let fs = FakeFs::new(cx.background_executor.clone());
10632        let project = Project::test(fs, [], cx).await;
10633        let (workspace, cx) =
10634            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10635        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10636
10637        // Create test items
10638        let item1 = cx.new(|cx| {
10639            TestItem::new(cx)
10640                .with_label("test1.txt")
10641                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
10642        });
10643        let item1_id = item1.item_id();
10644
10645        let item2 = cx.new(|cx| {
10646            TestItem::new(cx)
10647                .with_label("test2.txt")
10648                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
10649        });
10650
10651        // Add items to workspace
10652        workspace.update_in(cx, |workspace, window, cx| {
10653            workspace.add_item(
10654                pane.clone(),
10655                Box::new(item1.clone()),
10656                None,
10657                false,
10658                false,
10659                window,
10660                cx,
10661            );
10662            workspace.add_item(
10663                pane.clone(),
10664                Box::new(item2.clone()),
10665                None,
10666                false,
10667                false,
10668                window,
10669                cx,
10670            );
10671        });
10672
10673        // Activate item1 to ensure it gets navigation entries
10674        pane.update_in(cx, |pane, window, cx| {
10675            pane.activate_item(0, true, true, window, cx);
10676        });
10677
10678        // Switch to item2 and back to create navigation history
10679        pane.update_in(cx, |pane, window, cx| {
10680            pane.activate_item(1, true, true, window, cx);
10681        });
10682        cx.run_until_parked();
10683
10684        pane.update_in(cx, |pane, window, cx| {
10685            pane.activate_item(0, true, true, window, cx);
10686        });
10687        cx.run_until_parked();
10688
10689        // Simulate file deletion for item1
10690        item1.update(cx, |item, _| {
10691            item.set_has_deleted_file(true);
10692        });
10693
10694        // Emit UpdateTab event to trigger the close behavior
10695        item1.update(cx, |_, cx| {
10696            cx.emit(ItemEvent::UpdateTab);
10697        });
10698        cx.run_until_parked();
10699
10700        // Verify item1 was closed
10701        pane.read_with(cx, |pane, _| {
10702            assert_eq!(
10703                pane.items().count(),
10704                1,
10705                "Should have 1 item remaining after auto-close"
10706            );
10707        });
10708
10709        // Check navigation history after close
10710        let has_item = pane.read_with(cx, |pane, cx| {
10711            let mut has_item = false;
10712            pane.nav_history().for_each_entry(cx, |entry, _| {
10713                if entry.item.id() == item1_id {
10714                    has_item = true;
10715                }
10716            });
10717            has_item
10718        });
10719
10720        assert!(
10721            !has_item,
10722            "Navigation history should not contain closed item entries"
10723        );
10724    }
10725
10726    #[gpui::test]
10727    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10728        cx: &mut TestAppContext,
10729    ) {
10730        init_test(cx);
10731
10732        let fs = FakeFs::new(cx.background_executor.clone());
10733        let project = Project::test(fs, [], cx).await;
10734        let (workspace, cx) =
10735            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10736        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10737
10738        let dirty_regular_buffer = cx.new(|cx| {
10739            TestItem::new(cx)
10740                .with_dirty(true)
10741                .with_label("1.txt")
10742                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10743        });
10744        let dirty_regular_buffer_2 = cx.new(|cx| {
10745            TestItem::new(cx)
10746                .with_dirty(true)
10747                .with_label("2.txt")
10748                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10749        });
10750        let clear_regular_buffer = cx.new(|cx| {
10751            TestItem::new(cx)
10752                .with_label("3.txt")
10753                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10754        });
10755
10756        let dirty_multi_buffer = cx.new(|cx| {
10757            TestItem::new(cx)
10758                .with_dirty(true)
10759                .with_buffer_kind(ItemBufferKind::Multibuffer)
10760                .with_label("Fake Project Search")
10761                .with_project_items(&[
10762                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10763                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10764                    clear_regular_buffer.read(cx).project_items[0].clone(),
10765                ])
10766        });
10767        workspace.update_in(cx, |workspace, window, cx| {
10768            workspace.add_item(
10769                pane.clone(),
10770                Box::new(dirty_regular_buffer.clone()),
10771                None,
10772                false,
10773                false,
10774                window,
10775                cx,
10776            );
10777            workspace.add_item(
10778                pane.clone(),
10779                Box::new(dirty_regular_buffer_2.clone()),
10780                None,
10781                false,
10782                false,
10783                window,
10784                cx,
10785            );
10786            workspace.add_item(
10787                pane.clone(),
10788                Box::new(dirty_multi_buffer.clone()),
10789                None,
10790                false,
10791                false,
10792                window,
10793                cx,
10794            );
10795        });
10796
10797        pane.update_in(cx, |pane, window, cx| {
10798            pane.activate_item(2, true, true, window, cx);
10799            assert_eq!(
10800                pane.active_item().unwrap().item_id(),
10801                dirty_multi_buffer.item_id(),
10802                "Should select the multi buffer in the pane"
10803            );
10804        });
10805        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10806            pane.close_active_item(
10807                &CloseActiveItem {
10808                    save_intent: None,
10809                    close_pinned: false,
10810                },
10811                window,
10812                cx,
10813            )
10814        });
10815        cx.background_executor.run_until_parked();
10816        assert!(
10817            !cx.has_pending_prompt(),
10818            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10819        );
10820        close_multi_buffer_task
10821            .await
10822            .expect("Closing multi buffer failed");
10823        pane.update(cx, |pane, cx| {
10824            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10825            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10826            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10827            assert_eq!(
10828                pane.items()
10829                    .map(|item| item.item_id())
10830                    .sorted()
10831                    .collect::<Vec<_>>(),
10832                vec![
10833                    dirty_regular_buffer.item_id(),
10834                    dirty_regular_buffer_2.item_id(),
10835                ],
10836                "Should have no multi buffer left in the pane"
10837            );
10838            assert!(dirty_regular_buffer.read(cx).is_dirty);
10839            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10840        });
10841    }
10842
10843    #[gpui::test]
10844    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10845        init_test(cx);
10846        let fs = FakeFs::new(cx.executor());
10847        let project = Project::test(fs, [], cx).await;
10848        let (workspace, cx) =
10849            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10850
10851        // Add a new panel to the right dock, opening the dock and setting the
10852        // focus to the new panel.
10853        let panel = workspace.update_in(cx, |workspace, window, cx| {
10854            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10855            workspace.add_panel(panel.clone(), window, cx);
10856
10857            workspace
10858                .right_dock()
10859                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10860
10861            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10862
10863            panel
10864        });
10865
10866        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10867        // panel to the next valid position which, in this case, is the left
10868        // dock.
10869        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10870        workspace.update(cx, |workspace, cx| {
10871            assert!(workspace.left_dock().read(cx).is_open());
10872            assert_eq!(panel.read(cx).position, DockPosition::Left);
10873        });
10874
10875        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10876        // panel to the next valid position which, in this case, is the bottom
10877        // dock.
10878        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10879        workspace.update(cx, |workspace, cx| {
10880            assert!(workspace.bottom_dock().read(cx).is_open());
10881            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10882        });
10883
10884        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10885        // around moving the panel to its initial position, the right dock.
10886        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10887        workspace.update(cx, |workspace, cx| {
10888            assert!(workspace.right_dock().read(cx).is_open());
10889            assert_eq!(panel.read(cx).position, DockPosition::Right);
10890        });
10891
10892        // Remove focus from the panel, ensuring that, if the panel is not
10893        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10894        // the panel's position, so the panel is still in the right dock.
10895        workspace.update_in(cx, |workspace, window, cx| {
10896            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10897        });
10898
10899        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10900        workspace.update(cx, |workspace, cx| {
10901            assert!(workspace.right_dock().read(cx).is_open());
10902            assert_eq!(panel.read(cx).position, DockPosition::Right);
10903        });
10904    }
10905
10906    #[gpui::test]
10907    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10908        init_test(cx);
10909
10910        let fs = FakeFs::new(cx.executor());
10911        let project = Project::test(fs, [], cx).await;
10912        let (workspace, cx) =
10913            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10914
10915        let item_1 = cx.new(|cx| {
10916            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10917        });
10918        workspace.update_in(cx, |workspace, window, cx| {
10919            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10920            workspace.move_item_to_pane_in_direction(
10921                &MoveItemToPaneInDirection {
10922                    direction: SplitDirection::Right,
10923                    focus: true,
10924                    clone: false,
10925                },
10926                window,
10927                cx,
10928            );
10929            workspace.move_item_to_pane_at_index(
10930                &MoveItemToPane {
10931                    destination: 3,
10932                    focus: true,
10933                    clone: false,
10934                },
10935                window,
10936                cx,
10937            );
10938
10939            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10940            assert_eq!(
10941                pane_items_paths(&workspace.active_pane, cx),
10942                vec!["first.txt".to_string()],
10943                "Single item was not moved anywhere"
10944            );
10945        });
10946
10947        let item_2 = cx.new(|cx| {
10948            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10949        });
10950        workspace.update_in(cx, |workspace, window, cx| {
10951            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10952            assert_eq!(
10953                pane_items_paths(&workspace.panes[0], cx),
10954                vec!["first.txt".to_string(), "second.txt".to_string()],
10955            );
10956            workspace.move_item_to_pane_in_direction(
10957                &MoveItemToPaneInDirection {
10958                    direction: SplitDirection::Right,
10959                    focus: true,
10960                    clone: false,
10961                },
10962                window,
10963                cx,
10964            );
10965
10966            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10967            assert_eq!(
10968                pane_items_paths(&workspace.panes[0], cx),
10969                vec!["first.txt".to_string()],
10970                "After moving, one item should be left in the original pane"
10971            );
10972            assert_eq!(
10973                pane_items_paths(&workspace.panes[1], cx),
10974                vec!["second.txt".to_string()],
10975                "New item should have been moved to the new pane"
10976            );
10977        });
10978
10979        let item_3 = cx.new(|cx| {
10980            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10981        });
10982        workspace.update_in(cx, |workspace, window, cx| {
10983            let original_pane = workspace.panes[0].clone();
10984            workspace.set_active_pane(&original_pane, window, cx);
10985            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10986            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10987            assert_eq!(
10988                pane_items_paths(&workspace.active_pane, cx),
10989                vec!["first.txt".to_string(), "third.txt".to_string()],
10990                "New pane should be ready to move one item out"
10991            );
10992
10993            workspace.move_item_to_pane_at_index(
10994                &MoveItemToPane {
10995                    destination: 3,
10996                    focus: true,
10997                    clone: false,
10998                },
10999                window,
11000                cx,
11001            );
11002            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11003            assert_eq!(
11004                pane_items_paths(&workspace.active_pane, cx),
11005                vec!["first.txt".to_string()],
11006                "After moving, one item should be left in the original pane"
11007            );
11008            assert_eq!(
11009                pane_items_paths(&workspace.panes[1], cx),
11010                vec!["second.txt".to_string()],
11011                "Previously created pane should be unchanged"
11012            );
11013            assert_eq!(
11014                pane_items_paths(&workspace.panes[2], cx),
11015                vec!["third.txt".to_string()],
11016                "New item should have been moved to the new pane"
11017            );
11018        });
11019    }
11020
11021    #[gpui::test]
11022    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11023        init_test(cx);
11024
11025        let fs = FakeFs::new(cx.executor());
11026        let project = Project::test(fs, [], cx).await;
11027        let (workspace, cx) =
11028            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11029
11030        let item_1 = cx.new(|cx| {
11031            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11032        });
11033        workspace.update_in(cx, |workspace, window, cx| {
11034            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11035            workspace.move_item_to_pane_in_direction(
11036                &MoveItemToPaneInDirection {
11037                    direction: SplitDirection::Right,
11038                    focus: true,
11039                    clone: true,
11040                },
11041                window,
11042                cx,
11043            );
11044            workspace.move_item_to_pane_at_index(
11045                &MoveItemToPane {
11046                    destination: 3,
11047                    focus: true,
11048                    clone: true,
11049                },
11050                window,
11051                cx,
11052            );
11053        });
11054        cx.run_until_parked();
11055
11056        workspace.update(cx, |workspace, cx| {
11057            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11058            for pane in workspace.panes() {
11059                assert_eq!(
11060                    pane_items_paths(pane, cx),
11061                    vec!["first.txt".to_string()],
11062                    "Single item exists in all panes"
11063                );
11064            }
11065        });
11066
11067        // verify that the active pane has been updated after waiting for the
11068        // pane focus event to fire and resolve
11069        workspace.read_with(cx, |workspace, _app| {
11070            assert_eq!(
11071                workspace.active_pane(),
11072                &workspace.panes[2],
11073                "The third pane should be the active one: {:?}",
11074                workspace.panes
11075            );
11076        })
11077    }
11078
11079    mod register_project_item_tests {
11080
11081        use super::*;
11082
11083        // View
11084        struct TestPngItemView {
11085            focus_handle: FocusHandle,
11086        }
11087        // Model
11088        struct TestPngItem {}
11089
11090        impl project::ProjectItem for TestPngItem {
11091            fn try_open(
11092                _project: &Entity<Project>,
11093                path: &ProjectPath,
11094                cx: &mut App,
11095            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11096                if path.path.extension().unwrap() == "png" {
11097                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11098                } else {
11099                    None
11100                }
11101            }
11102
11103            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11104                None
11105            }
11106
11107            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11108                None
11109            }
11110
11111            fn is_dirty(&self) -> bool {
11112                false
11113            }
11114        }
11115
11116        impl Item for TestPngItemView {
11117            type Event = ();
11118            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11119                "".into()
11120            }
11121        }
11122        impl EventEmitter<()> for TestPngItemView {}
11123        impl Focusable for TestPngItemView {
11124            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11125                self.focus_handle.clone()
11126            }
11127        }
11128
11129        impl Render for TestPngItemView {
11130            fn render(
11131                &mut self,
11132                _window: &mut Window,
11133                _cx: &mut Context<Self>,
11134            ) -> impl IntoElement {
11135                Empty
11136            }
11137        }
11138
11139        impl ProjectItem for TestPngItemView {
11140            type Item = TestPngItem;
11141
11142            fn for_project_item(
11143                _project: Entity<Project>,
11144                _pane: Option<&Pane>,
11145                _item: Entity<Self::Item>,
11146                _: &mut Window,
11147                cx: &mut Context<Self>,
11148            ) -> Self
11149            where
11150                Self: Sized,
11151            {
11152                Self {
11153                    focus_handle: cx.focus_handle(),
11154                }
11155            }
11156        }
11157
11158        // View
11159        struct TestIpynbItemView {
11160            focus_handle: FocusHandle,
11161        }
11162        // Model
11163        struct TestIpynbItem {}
11164
11165        impl project::ProjectItem for TestIpynbItem {
11166            fn try_open(
11167                _project: &Entity<Project>,
11168                path: &ProjectPath,
11169                cx: &mut App,
11170            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11171                if path.path.extension().unwrap() == "ipynb" {
11172                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11173                } else {
11174                    None
11175                }
11176            }
11177
11178            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11179                None
11180            }
11181
11182            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11183                None
11184            }
11185
11186            fn is_dirty(&self) -> bool {
11187                false
11188            }
11189        }
11190
11191        impl Item for TestIpynbItemView {
11192            type Event = ();
11193            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11194                "".into()
11195            }
11196        }
11197        impl EventEmitter<()> for TestIpynbItemView {}
11198        impl Focusable for TestIpynbItemView {
11199            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11200                self.focus_handle.clone()
11201            }
11202        }
11203
11204        impl Render for TestIpynbItemView {
11205            fn render(
11206                &mut self,
11207                _window: &mut Window,
11208                _cx: &mut Context<Self>,
11209            ) -> impl IntoElement {
11210                Empty
11211            }
11212        }
11213
11214        impl ProjectItem for TestIpynbItemView {
11215            type Item = TestIpynbItem;
11216
11217            fn for_project_item(
11218                _project: Entity<Project>,
11219                _pane: Option<&Pane>,
11220                _item: Entity<Self::Item>,
11221                _: &mut Window,
11222                cx: &mut Context<Self>,
11223            ) -> Self
11224            where
11225                Self: Sized,
11226            {
11227                Self {
11228                    focus_handle: cx.focus_handle(),
11229                }
11230            }
11231        }
11232
11233        struct TestAlternatePngItemView {
11234            focus_handle: FocusHandle,
11235        }
11236
11237        impl Item for TestAlternatePngItemView {
11238            type Event = ();
11239            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11240                "".into()
11241            }
11242        }
11243
11244        impl EventEmitter<()> for TestAlternatePngItemView {}
11245        impl Focusable for TestAlternatePngItemView {
11246            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11247                self.focus_handle.clone()
11248            }
11249        }
11250
11251        impl Render for TestAlternatePngItemView {
11252            fn render(
11253                &mut self,
11254                _window: &mut Window,
11255                _cx: &mut Context<Self>,
11256            ) -> impl IntoElement {
11257                Empty
11258            }
11259        }
11260
11261        impl ProjectItem for TestAlternatePngItemView {
11262            type Item = TestPngItem;
11263
11264            fn for_project_item(
11265                _project: Entity<Project>,
11266                _pane: Option<&Pane>,
11267                _item: Entity<Self::Item>,
11268                _: &mut Window,
11269                cx: &mut Context<Self>,
11270            ) -> Self
11271            where
11272                Self: Sized,
11273            {
11274                Self {
11275                    focus_handle: cx.focus_handle(),
11276                }
11277            }
11278        }
11279
11280        #[gpui::test]
11281        async fn test_register_project_item(cx: &mut TestAppContext) {
11282            init_test(cx);
11283
11284            cx.update(|cx| {
11285                register_project_item::<TestPngItemView>(cx);
11286                register_project_item::<TestIpynbItemView>(cx);
11287            });
11288
11289            let fs = FakeFs::new(cx.executor());
11290            fs.insert_tree(
11291                "/root1",
11292                json!({
11293                    "one.png": "BINARYDATAHERE",
11294                    "two.ipynb": "{ totally a notebook }",
11295                    "three.txt": "editing text, sure why not?"
11296                }),
11297            )
11298            .await;
11299
11300            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11301            let (workspace, cx) =
11302                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11303
11304            let worktree_id = project.update(cx, |project, cx| {
11305                project.worktrees(cx).next().unwrap().read(cx).id()
11306            });
11307
11308            let handle = workspace
11309                .update_in(cx, |workspace, window, cx| {
11310                    let project_path = (worktree_id, rel_path("one.png"));
11311                    workspace.open_path(project_path, None, true, window, cx)
11312                })
11313                .await
11314                .unwrap();
11315
11316            // Now we can check if the handle we got back errored or not
11317            assert_eq!(
11318                handle.to_any_view().entity_type(),
11319                TypeId::of::<TestPngItemView>()
11320            );
11321
11322            let handle = workspace
11323                .update_in(cx, |workspace, window, cx| {
11324                    let project_path = (worktree_id, rel_path("two.ipynb"));
11325                    workspace.open_path(project_path, None, true, window, cx)
11326                })
11327                .await
11328                .unwrap();
11329
11330            assert_eq!(
11331                handle.to_any_view().entity_type(),
11332                TypeId::of::<TestIpynbItemView>()
11333            );
11334
11335            let handle = workspace
11336                .update_in(cx, |workspace, window, cx| {
11337                    let project_path = (worktree_id, rel_path("three.txt"));
11338                    workspace.open_path(project_path, None, true, window, cx)
11339                })
11340                .await;
11341            assert!(handle.is_err());
11342        }
11343
11344        #[gpui::test]
11345        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11346            init_test(cx);
11347
11348            cx.update(|cx| {
11349                register_project_item::<TestPngItemView>(cx);
11350                register_project_item::<TestAlternatePngItemView>(cx);
11351            });
11352
11353            let fs = FakeFs::new(cx.executor());
11354            fs.insert_tree(
11355                "/root1",
11356                json!({
11357                    "one.png": "BINARYDATAHERE",
11358                    "two.ipynb": "{ totally a notebook }",
11359                    "three.txt": "editing text, sure why not?"
11360                }),
11361            )
11362            .await;
11363            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11364            let (workspace, cx) =
11365                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11366            let worktree_id = project.update(cx, |project, cx| {
11367                project.worktrees(cx).next().unwrap().read(cx).id()
11368            });
11369
11370            let handle = workspace
11371                .update_in(cx, |workspace, window, cx| {
11372                    let project_path = (worktree_id, rel_path("one.png"));
11373                    workspace.open_path(project_path, None, true, window, cx)
11374                })
11375                .await
11376                .unwrap();
11377
11378            // This _must_ be the second item registered
11379            assert_eq!(
11380                handle.to_any_view().entity_type(),
11381                TypeId::of::<TestAlternatePngItemView>()
11382            );
11383
11384            let handle = workspace
11385                .update_in(cx, |workspace, window, cx| {
11386                    let project_path = (worktree_id, rel_path("three.txt"));
11387                    workspace.open_path(project_path, None, true, window, cx)
11388                })
11389                .await;
11390            assert!(handle.is_err());
11391        }
11392    }
11393
11394    #[gpui::test]
11395    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11396        init_test(cx);
11397
11398        let fs = FakeFs::new(cx.executor());
11399        let project = Project::test(fs, [], cx).await;
11400        let (workspace, _cx) =
11401            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11402
11403        // Test with status bar shown (default)
11404        workspace.read_with(cx, |workspace, cx| {
11405            let visible = workspace.status_bar_visible(cx);
11406            assert!(visible, "Status bar should be visible by default");
11407        });
11408
11409        // Test with status bar hidden
11410        cx.update_global(|store: &mut SettingsStore, cx| {
11411            store.update_user_settings(cx, |settings| {
11412                settings.status_bar.get_or_insert_default().show = Some(false);
11413            });
11414        });
11415
11416        workspace.read_with(cx, |workspace, cx| {
11417            let visible = workspace.status_bar_visible(cx);
11418            assert!(!visible, "Status bar should be hidden when show is false");
11419        });
11420
11421        // Test with status bar shown explicitly
11422        cx.update_global(|store: &mut SettingsStore, cx| {
11423            store.update_user_settings(cx, |settings| {
11424                settings.status_bar.get_or_insert_default().show = Some(true);
11425            });
11426        });
11427
11428        workspace.read_with(cx, |workspace, cx| {
11429            let visible = workspace.status_bar_visible(cx);
11430            assert!(visible, "Status bar should be visible when show is true");
11431        });
11432    }
11433
11434    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11435        pane.read(cx)
11436            .items()
11437            .flat_map(|item| {
11438                item.project_paths(cx)
11439                    .into_iter()
11440                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11441            })
11442            .collect()
11443    }
11444
11445    pub fn init_test(cx: &mut TestAppContext) {
11446        cx.update(|cx| {
11447            let settings_store = SettingsStore::test(cx);
11448            cx.set_global(settings_store);
11449            theme::init(theme::LoadThemes::JustBase, cx);
11450        });
11451    }
11452
11453    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11454        let item = TestProjectItem::new(id, path, cx);
11455        item.update(cx, |item, _| {
11456            item.is_dirty = true;
11457        });
11458        item
11459    }
11460}