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                            log::warn!("Failed to open a project item: {e:#}");
  679                            if e.error_code() == ErrorCode::Internal {
  680                                if let Some(abs_path) =
  681                                    entry_abs_path.as_deref().filter(|_| is_file)
  682                                {
  683                                    if let Some(broken_project_item_view) =
  684                                        cx.update(|window, cx| {
  685                                            T::for_broken_project_item(
  686                                                abs_path, is_local, &e, window, cx,
  687                                            )
  688                                        })?
  689                                    {
  690                                        let build_workspace_item = Box::new(
  691                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  692                                                cx.new(|_| broken_project_item_view).boxed_clone()
  693                                            },
  694                                        )
  695                                        as Box<_>;
  696                                        return Ok((None, build_workspace_item));
  697                                    }
  698                                }
  699                            }
  700                            Err(e)
  701                        }
  702                    }
  703                }))
  704            });
  705    }
  706
  707    fn open_path(
  708        &self,
  709        project: &Entity<Project>,
  710        path: &ProjectPath,
  711        window: &mut Window,
  712        cx: &mut App,
  713    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  714        let Some(open_project_item) = self
  715            .build_project_item_for_path_fns
  716            .iter()
  717            .rev()
  718            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  719        else {
  720            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  721        };
  722        open_project_item
  723    }
  724
  725    fn build_item<T: project::ProjectItem>(
  726        &self,
  727        item: Entity<T>,
  728        project: Entity<Project>,
  729        pane: Option<&Pane>,
  730        window: &mut Window,
  731        cx: &mut App,
  732    ) -> Option<Box<dyn ItemHandle>> {
  733        let build = self
  734            .build_project_item_fns_by_type
  735            .get(&TypeId::of::<T>())?;
  736        Some(build(item.into_any(), project, pane, window, cx))
  737    }
  738}
  739
  740type WorkspaceItemBuilder =
  741    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  742
  743impl Global for ProjectItemRegistry {}
  744
  745/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  746/// items will get a chance to open the file, starting from the project item that
  747/// was added last.
  748pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  749    cx.default_global::<ProjectItemRegistry>().register::<I>();
  750}
  751
  752#[derive(Default)]
  753pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  754
  755struct FollowableViewDescriptor {
  756    from_state_proto: fn(
  757        Entity<Workspace>,
  758        ViewId,
  759        &mut Option<proto::view::Variant>,
  760        &mut Window,
  761        &mut App,
  762    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  763    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  764}
  765
  766impl Global for FollowableViewRegistry {}
  767
  768impl FollowableViewRegistry {
  769    pub fn register<I: FollowableItem>(cx: &mut App) {
  770        cx.default_global::<Self>().0.insert(
  771            TypeId::of::<I>(),
  772            FollowableViewDescriptor {
  773                from_state_proto: |workspace, id, state, window, cx| {
  774                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  775                        cx.foreground_executor()
  776                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  777                    })
  778                },
  779                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  780            },
  781        );
  782    }
  783
  784    pub fn from_state_proto(
  785        workspace: Entity<Workspace>,
  786        view_id: ViewId,
  787        mut state: Option<proto::view::Variant>,
  788        window: &mut Window,
  789        cx: &mut App,
  790    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  791        cx.update_default_global(|this: &mut Self, cx| {
  792            this.0.values().find_map(|descriptor| {
  793                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  794            })
  795        })
  796    }
  797
  798    pub fn to_followable_view(
  799        view: impl Into<AnyView>,
  800        cx: &App,
  801    ) -> Option<Box<dyn FollowableItemHandle>> {
  802        let this = cx.try_global::<Self>()?;
  803        let view = view.into();
  804        let descriptor = this.0.get(&view.entity_type())?;
  805        Some((descriptor.to_followable_view)(&view))
  806    }
  807}
  808
  809#[derive(Copy, Clone)]
  810struct SerializableItemDescriptor {
  811    deserialize: fn(
  812        Entity<Project>,
  813        WeakEntity<Workspace>,
  814        WorkspaceId,
  815        ItemId,
  816        &mut Window,
  817        &mut Context<Pane>,
  818    ) -> Task<Result<Box<dyn ItemHandle>>>,
  819    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  820    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  821}
  822
  823#[derive(Default)]
  824struct SerializableItemRegistry {
  825    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  826    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  827}
  828
  829impl Global for SerializableItemRegistry {}
  830
  831impl SerializableItemRegistry {
  832    fn deserialize(
  833        item_kind: &str,
  834        project: Entity<Project>,
  835        workspace: WeakEntity<Workspace>,
  836        workspace_id: WorkspaceId,
  837        item_item: ItemId,
  838        window: &mut Window,
  839        cx: &mut Context<Pane>,
  840    ) -> Task<Result<Box<dyn ItemHandle>>> {
  841        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  842            return Task::ready(Err(anyhow!(
  843                "cannot deserialize {}, descriptor not found",
  844                item_kind
  845            )));
  846        };
  847
  848        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  849    }
  850
  851    fn cleanup(
  852        item_kind: &str,
  853        workspace_id: WorkspaceId,
  854        loaded_items: Vec<ItemId>,
  855        window: &mut Window,
  856        cx: &mut App,
  857    ) -> Task<Result<()>> {
  858        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  859            return Task::ready(Err(anyhow!(
  860                "cannot cleanup {}, descriptor not found",
  861                item_kind
  862            )));
  863        };
  864
  865        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  866    }
  867
  868    fn view_to_serializable_item_handle(
  869        view: AnyView,
  870        cx: &App,
  871    ) -> Option<Box<dyn SerializableItemHandle>> {
  872        let this = cx.try_global::<Self>()?;
  873        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  874        Some((descriptor.view_to_serializable_item)(view))
  875    }
  876
  877    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  878        let this = cx.try_global::<Self>()?;
  879        this.descriptors_by_kind.get(item_kind).copied()
  880    }
  881}
  882
  883pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  884    let serialized_item_kind = I::serialized_item_kind();
  885
  886    let registry = cx.default_global::<SerializableItemRegistry>();
  887    let descriptor = SerializableItemDescriptor {
  888        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  889            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  890            cx.foreground_executor()
  891                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  892        },
  893        cleanup: |workspace_id, loaded_items, window, cx| {
  894            I::cleanup(workspace_id, loaded_items, window, cx)
  895        },
  896        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  897    };
  898    registry
  899        .descriptors_by_kind
  900        .insert(Arc::from(serialized_item_kind), descriptor);
  901    registry
  902        .descriptors_by_type
  903        .insert(TypeId::of::<I>(), descriptor);
  904}
  905
  906pub struct AppState {
  907    pub languages: Arc<LanguageRegistry>,
  908    pub client: Arc<Client>,
  909    pub user_store: Entity<UserStore>,
  910    pub workspace_store: Entity<WorkspaceStore>,
  911    pub fs: Arc<dyn fs::Fs>,
  912    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  913    pub node_runtime: NodeRuntime,
  914    pub session: Entity<AppSession>,
  915}
  916
  917struct GlobalAppState(Weak<AppState>);
  918
  919impl Global for GlobalAppState {}
  920
  921pub struct WorkspaceStore {
  922    workspaces: HashSet<WindowHandle<Workspace>>,
  923    client: Arc<Client>,
  924    _subscriptions: Vec<client::Subscription>,
  925}
  926
  927#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  928pub enum CollaboratorId {
  929    PeerId(PeerId),
  930    Agent,
  931}
  932
  933impl From<PeerId> for CollaboratorId {
  934    fn from(peer_id: PeerId) -> Self {
  935        CollaboratorId::PeerId(peer_id)
  936    }
  937}
  938
  939impl From<&PeerId> for CollaboratorId {
  940    fn from(peer_id: &PeerId) -> Self {
  941        CollaboratorId::PeerId(*peer_id)
  942    }
  943}
  944
  945#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  946struct Follower {
  947    project_id: Option<u64>,
  948    peer_id: PeerId,
  949}
  950
  951impl AppState {
  952    #[track_caller]
  953    pub fn global(cx: &App) -> Weak<Self> {
  954        cx.global::<GlobalAppState>().0.clone()
  955    }
  956    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  957        cx.try_global::<GlobalAppState>()
  958            .map(|state| state.0.clone())
  959    }
  960    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  961        cx.set_global(GlobalAppState(state));
  962    }
  963
  964    #[cfg(any(test, feature = "test-support"))]
  965    pub fn test(cx: &mut App) -> Arc<Self> {
  966        use node_runtime::NodeRuntime;
  967        use session::Session;
  968        use settings::SettingsStore;
  969
  970        if !cx.has_global::<SettingsStore>() {
  971            let settings_store = SettingsStore::test(cx);
  972            cx.set_global(settings_store);
  973        }
  974
  975        let fs = fs::FakeFs::new(cx.background_executor().clone());
  976        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  977        let clock = Arc::new(clock::FakeSystemClock::new());
  978        let http_client = http_client::FakeHttpClient::with_404_response();
  979        let client = Client::new(clock, http_client, cx);
  980        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  981        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  982        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  983
  984        theme::init(theme::LoadThemes::JustBase, cx);
  985        client::init(&client, cx);
  986
  987        Arc::new(Self {
  988            client,
  989            fs,
  990            languages,
  991            user_store,
  992            workspace_store,
  993            node_runtime: NodeRuntime::unavailable(),
  994            build_window_options: |_, _| Default::default(),
  995            session,
  996        })
  997    }
  998}
  999
 1000struct DelayedDebouncedEditAction {
 1001    task: Option<Task<()>>,
 1002    cancel_channel: Option<oneshot::Sender<()>>,
 1003}
 1004
 1005impl DelayedDebouncedEditAction {
 1006    fn new() -> DelayedDebouncedEditAction {
 1007        DelayedDebouncedEditAction {
 1008            task: None,
 1009            cancel_channel: None,
 1010        }
 1011    }
 1012
 1013    fn fire_new<F>(
 1014        &mut self,
 1015        delay: Duration,
 1016        window: &mut Window,
 1017        cx: &mut Context<Workspace>,
 1018        func: F,
 1019    ) where
 1020        F: 'static
 1021            + Send
 1022            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1023    {
 1024        if let Some(channel) = self.cancel_channel.take() {
 1025            _ = channel.send(());
 1026        }
 1027
 1028        let (sender, mut receiver) = oneshot::channel::<()>();
 1029        self.cancel_channel = Some(sender);
 1030
 1031        let previous_task = self.task.take();
 1032        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1033            let mut timer = cx.background_executor().timer(delay).fuse();
 1034            if let Some(previous_task) = previous_task {
 1035                previous_task.await;
 1036            }
 1037
 1038            futures::select_biased! {
 1039                _ = receiver => return,
 1040                    _ = timer => {}
 1041            }
 1042
 1043            if let Some(result) = workspace
 1044                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1045                .log_err()
 1046            {
 1047                result.await.log_err();
 1048            }
 1049        }));
 1050    }
 1051}
 1052
 1053pub enum Event {
 1054    PaneAdded(Entity<Pane>),
 1055    PaneRemoved,
 1056    ItemAdded {
 1057        item: Box<dyn ItemHandle>,
 1058    },
 1059    ActiveItemChanged,
 1060    ItemRemoved {
 1061        item_id: EntityId,
 1062    },
 1063    UserSavedItem {
 1064        pane: WeakEntity<Pane>,
 1065        item: Box<dyn WeakItemHandle>,
 1066        save_intent: SaveIntent,
 1067    },
 1068    ContactRequestedJoin(u64),
 1069    WorkspaceCreated(WeakEntity<Workspace>),
 1070    OpenBundledFile {
 1071        text: Cow<'static, str>,
 1072        title: &'static str,
 1073        language: &'static str,
 1074    },
 1075    ZoomChanged,
 1076    ModalOpened,
 1077}
 1078
 1079#[derive(Debug)]
 1080pub enum OpenVisible {
 1081    All,
 1082    None,
 1083    OnlyFiles,
 1084    OnlyDirectories,
 1085}
 1086
 1087enum WorkspaceLocation {
 1088    // Valid local paths or SSH project to serialize
 1089    Location(SerializedWorkspaceLocation, PathList),
 1090    // No valid location found hence clear session id
 1091    DetachFromSession,
 1092    // No valid location found to serialize
 1093    None,
 1094}
 1095
 1096type PromptForNewPath = Box<
 1097    dyn Fn(
 1098        &mut Workspace,
 1099        DirectoryLister,
 1100        &mut Window,
 1101        &mut Context<Workspace>,
 1102    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1103>;
 1104
 1105type PromptForOpenPath = Box<
 1106    dyn Fn(
 1107        &mut Workspace,
 1108        DirectoryLister,
 1109        &mut Window,
 1110        &mut Context<Workspace>,
 1111    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1112>;
 1113
 1114#[derive(Default)]
 1115struct DispatchingKeystrokes {
 1116    dispatched: HashSet<Vec<Keystroke>>,
 1117    queue: VecDeque<Keystroke>,
 1118    task: Option<Shared<Task<()>>>,
 1119}
 1120
 1121/// Collects everything project-related for a certain window opened.
 1122/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1123///
 1124/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1125/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1126/// that can be used to register a global action to be triggered from any place in the window.
 1127pub struct Workspace {
 1128    weak_self: WeakEntity<Self>,
 1129    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1130    zoomed: Option<AnyWeakView>,
 1131    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1132    zoomed_position: Option<DockPosition>,
 1133    center: PaneGroup,
 1134    left_dock: Entity<Dock>,
 1135    bottom_dock: Entity<Dock>,
 1136    right_dock: Entity<Dock>,
 1137    panes: Vec<Entity<Pane>>,
 1138    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1139    active_pane: Entity<Pane>,
 1140    last_active_center_pane: Option<WeakEntity<Pane>>,
 1141    last_active_view_id: Option<proto::ViewId>,
 1142    status_bar: Entity<StatusBar>,
 1143    modal_layer: Entity<ModalLayer>,
 1144    toast_layer: Entity<ToastLayer>,
 1145    titlebar_item: Option<AnyView>,
 1146    notifications: Notifications,
 1147    suppressed_notifications: HashSet<NotificationId>,
 1148    project: Entity<Project>,
 1149    follower_states: HashMap<CollaboratorId, FollowerState>,
 1150    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1151    window_edited: bool,
 1152    last_window_title: Option<String>,
 1153    dirty_items: HashMap<EntityId, Subscription>,
 1154    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1155    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1156    database_id: Option<WorkspaceId>,
 1157    app_state: Arc<AppState>,
 1158    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1159    _subscriptions: Vec<Subscription>,
 1160    _apply_leader_updates: Task<Result<()>>,
 1161    _observe_current_user: Task<Result<()>>,
 1162    _schedule_serialize_workspace: Option<Task<()>>,
 1163    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1164    pane_history_timestamp: Arc<AtomicUsize>,
 1165    bounds: Bounds<Pixels>,
 1166    pub centered_layout: bool,
 1167    bounds_save_task_queued: Option<Task<()>>,
 1168    on_prompt_for_new_path: Option<PromptForNewPath>,
 1169    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1170    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1171    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1172    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1173    _items_serializer: Task<Result<()>>,
 1174    session_id: Option<String>,
 1175    scheduled_tasks: Vec<Task<()>>,
 1176    last_open_dock_positions: Vec<DockPosition>,
 1177    removing: bool,
 1178}
 1179
 1180impl EventEmitter<Event> for Workspace {}
 1181
 1182#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1183pub struct ViewId {
 1184    pub creator: CollaboratorId,
 1185    pub id: u64,
 1186}
 1187
 1188pub struct FollowerState {
 1189    center_pane: Entity<Pane>,
 1190    dock_pane: Option<Entity<Pane>>,
 1191    active_view_id: Option<ViewId>,
 1192    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1193}
 1194
 1195struct FollowerView {
 1196    view: Box<dyn FollowableItemHandle>,
 1197    location: Option<proto::PanelId>,
 1198}
 1199
 1200impl Workspace {
 1201    pub fn new(
 1202        workspace_id: Option<WorkspaceId>,
 1203        project: Entity<Project>,
 1204        app_state: Arc<AppState>,
 1205        window: &mut Window,
 1206        cx: &mut Context<Self>,
 1207    ) -> Self {
 1208        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1209            match event {
 1210                project::Event::RemoteIdChanged(_) => {
 1211                    this.update_window_title(window, cx);
 1212                }
 1213
 1214                project::Event::CollaboratorLeft(peer_id) => {
 1215                    this.collaborator_left(*peer_id, window, cx);
 1216                }
 1217
 1218                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1219                    this.update_window_title(window, cx);
 1220                    this.serialize_workspace(window, cx);
 1221                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1222                    this.update_history(cx);
 1223                }
 1224
 1225                project::Event::DisconnectedFromHost => {
 1226                    this.update_window_edited(window, cx);
 1227                    let leaders_to_unfollow =
 1228                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1229                    for leader_id in leaders_to_unfollow {
 1230                        this.unfollow(leader_id, window, cx);
 1231                    }
 1232                }
 1233
 1234                project::Event::DisconnectedFromSshRemote => {
 1235                    this.update_window_edited(window, cx);
 1236                }
 1237
 1238                project::Event::Closed => {
 1239                    window.remove_window();
 1240                }
 1241
 1242                project::Event::DeletedEntry(_, entry_id) => {
 1243                    for pane in this.panes.iter() {
 1244                        pane.update(cx, |pane, cx| {
 1245                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1246                        });
 1247                    }
 1248                }
 1249
 1250                project::Event::Toast {
 1251                    notification_id,
 1252                    message,
 1253                } => this.show_notification(
 1254                    NotificationId::named(notification_id.clone()),
 1255                    cx,
 1256                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1257                ),
 1258
 1259                project::Event::HideToast { notification_id } => {
 1260                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1261                }
 1262
 1263                project::Event::LanguageServerPrompt(request) => {
 1264                    struct LanguageServerPrompt;
 1265
 1266                    let mut hasher = DefaultHasher::new();
 1267                    request.lsp_name.as_str().hash(&mut hasher);
 1268                    let id = hasher.finish();
 1269
 1270                    this.show_notification(
 1271                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1272                        cx,
 1273                        |cx| {
 1274                            cx.new(|cx| {
 1275                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1276                            })
 1277                        },
 1278                    );
 1279                }
 1280
 1281                project::Event::AgentLocationChanged => {
 1282                    this.handle_agent_location_changed(window, cx)
 1283                }
 1284
 1285                _ => {}
 1286            }
 1287            cx.notify()
 1288        })
 1289        .detach();
 1290
 1291        cx.subscribe_in(
 1292            &project.read(cx).breakpoint_store(),
 1293            window,
 1294            |workspace, _, event, window, cx| match event {
 1295                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1296                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1297                    workspace.serialize_workspace(window, cx);
 1298                }
 1299                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1300            },
 1301        )
 1302        .detach();
 1303        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1304            cx.subscribe_in(
 1305                &toolchain_store,
 1306                window,
 1307                |workspace, _, event, window, cx| match event {
 1308                    ToolchainStoreEvent::CustomToolchainsModified => {
 1309                        workspace.serialize_workspace(window, cx);
 1310                    }
 1311                    _ => {}
 1312                },
 1313            )
 1314            .detach();
 1315        }
 1316
 1317        cx.on_focus_lost(window, |this, window, cx| {
 1318            let focus_handle = this.focus_handle(cx);
 1319            window.focus(&focus_handle);
 1320        })
 1321        .detach();
 1322
 1323        let weak_handle = cx.entity().downgrade();
 1324        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1325
 1326        let center_pane = cx.new(|cx| {
 1327            let mut center_pane = Pane::new(
 1328                weak_handle.clone(),
 1329                project.clone(),
 1330                pane_history_timestamp.clone(),
 1331                None,
 1332                NewFile.boxed_clone(),
 1333                true,
 1334                window,
 1335                cx,
 1336            );
 1337            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1338            center_pane
 1339        });
 1340        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1341            .detach();
 1342
 1343        window.focus(&center_pane.focus_handle(cx));
 1344
 1345        cx.emit(Event::PaneAdded(center_pane.clone()));
 1346
 1347        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1348        app_state.workspace_store.update(cx, |store, _| {
 1349            store.workspaces.insert(window_handle);
 1350        });
 1351
 1352        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1353        let mut connection_status = app_state.client.status();
 1354        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1355            current_user.next().await;
 1356            connection_status.next().await;
 1357            let mut stream =
 1358                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1359
 1360            while stream.recv().await.is_some() {
 1361                this.update(cx, |_, cx| cx.notify())?;
 1362            }
 1363            anyhow::Ok(())
 1364        });
 1365
 1366        // All leader updates are enqueued and then processed in a single task, so
 1367        // that each asynchronous operation can be run in order.
 1368        let (leader_updates_tx, mut leader_updates_rx) =
 1369            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1370        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1371            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1372                Self::process_leader_update(&this, leader_id, update, cx)
 1373                    .await
 1374                    .log_err();
 1375            }
 1376
 1377            Ok(())
 1378        });
 1379
 1380        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1381        let modal_layer = cx.new(|_| ModalLayer::new());
 1382        let toast_layer = cx.new(|_| ToastLayer::new());
 1383        cx.subscribe(
 1384            &modal_layer,
 1385            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1386                cx.emit(Event::ModalOpened);
 1387            },
 1388        )
 1389        .detach();
 1390
 1391        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1392        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1393        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1394        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1395        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1396        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1397        let status_bar = cx.new(|cx| {
 1398            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1399            status_bar.add_left_item(left_dock_buttons, window, cx);
 1400            status_bar.add_right_item(right_dock_buttons, window, cx);
 1401            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1402            status_bar
 1403        });
 1404
 1405        let session_id = app_state.session.read(cx).id().to_owned();
 1406
 1407        let mut active_call = None;
 1408        if let Some(call) = ActiveCall::try_global(cx) {
 1409            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1410            active_call = Some((call, subscriptions));
 1411        }
 1412
 1413        let (serializable_items_tx, serializable_items_rx) =
 1414            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1415        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1416            Self::serialize_items(&this, serializable_items_rx, cx).await
 1417        });
 1418
 1419        let subscriptions = vec![
 1420            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1421            cx.observe_window_bounds(window, move |this, window, cx| {
 1422                if this.bounds_save_task_queued.is_some() {
 1423                    return;
 1424                }
 1425                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1426                    cx.background_executor()
 1427                        .timer(Duration::from_millis(100))
 1428                        .await;
 1429                    this.update_in(cx, |this, window, cx| {
 1430                        if let Some(display) = window.display(cx)
 1431                            && let Ok(display_uuid) = display.uuid()
 1432                        {
 1433                            let window_bounds = window.inner_window_bounds();
 1434                            if let Some(database_id) = workspace_id {
 1435                                cx.background_executor()
 1436                                    .spawn(DB.set_window_open_status(
 1437                                        database_id,
 1438                                        SerializedWindowBounds(window_bounds),
 1439                                        display_uuid,
 1440                                    ))
 1441                                    .detach_and_log_err(cx);
 1442                            }
 1443                        }
 1444                        this.bounds_save_task_queued.take();
 1445                    })
 1446                    .ok();
 1447                }));
 1448                cx.notify();
 1449            }),
 1450            cx.observe_window_appearance(window, |_, window, cx| {
 1451                let window_appearance = window.appearance();
 1452
 1453                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1454
 1455                GlobalTheme::reload_theme(cx);
 1456                GlobalTheme::reload_icon_theme(cx);
 1457            }),
 1458            cx.on_release(move |this, cx| {
 1459                this.app_state.workspace_store.update(cx, move |store, _| {
 1460                    store.workspaces.remove(&window_handle);
 1461                })
 1462            }),
 1463        ];
 1464
 1465        cx.defer_in(window, |this, window, cx| {
 1466            this.update_window_title(window, cx);
 1467            this.show_initial_notifications(cx);
 1468        });
 1469        Workspace {
 1470            weak_self: weak_handle.clone(),
 1471            zoomed: None,
 1472            zoomed_position: None,
 1473            previous_dock_drag_coordinates: None,
 1474            center: PaneGroup::new(center_pane.clone()),
 1475            panes: vec![center_pane.clone()],
 1476            panes_by_item: Default::default(),
 1477            active_pane: center_pane.clone(),
 1478            last_active_center_pane: Some(center_pane.downgrade()),
 1479            last_active_view_id: None,
 1480            status_bar,
 1481            modal_layer,
 1482            toast_layer,
 1483            titlebar_item: None,
 1484            notifications: Notifications::default(),
 1485            suppressed_notifications: HashSet::default(),
 1486            left_dock,
 1487            bottom_dock,
 1488            right_dock,
 1489            project: project.clone(),
 1490            follower_states: Default::default(),
 1491            last_leaders_by_pane: Default::default(),
 1492            dispatching_keystrokes: Default::default(),
 1493            window_edited: false,
 1494            last_window_title: None,
 1495            dirty_items: Default::default(),
 1496            active_call,
 1497            database_id: workspace_id,
 1498            app_state,
 1499            _observe_current_user,
 1500            _apply_leader_updates,
 1501            _schedule_serialize_workspace: None,
 1502            _schedule_serialize_ssh_paths: None,
 1503            leader_updates_tx,
 1504            _subscriptions: subscriptions,
 1505            pane_history_timestamp,
 1506            workspace_actions: Default::default(),
 1507            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1508            bounds: Default::default(),
 1509            centered_layout: false,
 1510            bounds_save_task_queued: None,
 1511            on_prompt_for_new_path: None,
 1512            on_prompt_for_open_path: None,
 1513            terminal_provider: None,
 1514            debugger_provider: None,
 1515            serializable_items_tx,
 1516            _items_serializer,
 1517            session_id: Some(session_id),
 1518
 1519            scheduled_tasks: Vec::new(),
 1520            last_open_dock_positions: Vec::new(),
 1521            removing: false,
 1522        }
 1523    }
 1524
 1525    pub fn new_local(
 1526        abs_paths: Vec<PathBuf>,
 1527        app_state: Arc<AppState>,
 1528        requesting_window: Option<WindowHandle<Workspace>>,
 1529        env: Option<HashMap<String, String>>,
 1530        cx: &mut App,
 1531    ) -> Task<
 1532        anyhow::Result<(
 1533            WindowHandle<Workspace>,
 1534            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1535        )>,
 1536    > {
 1537        let project_handle = Project::local(
 1538            app_state.client.clone(),
 1539            app_state.node_runtime.clone(),
 1540            app_state.user_store.clone(),
 1541            app_state.languages.clone(),
 1542            app_state.fs.clone(),
 1543            env,
 1544            cx,
 1545        );
 1546
 1547        cx.spawn(async move |cx| {
 1548            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1549            for path in abs_paths.into_iter() {
 1550                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1551                    paths_to_open.push(canonical)
 1552                } else {
 1553                    paths_to_open.push(path)
 1554                }
 1555            }
 1556
 1557            let serialized_workspace =
 1558                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1559
 1560            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1561                paths_to_open = paths.ordered_paths().cloned().collect();
 1562                if !paths.is_lexicographically_ordered() {
 1563                    project_handle
 1564                        .update(cx, |project, cx| {
 1565                            project.set_worktrees_reordered(true, cx);
 1566                        })
 1567                        .log_err();
 1568                }
 1569            }
 1570
 1571            // Get project paths for all of the abs_paths
 1572            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1573                Vec::with_capacity(paths_to_open.len());
 1574
 1575            for path in paths_to_open.into_iter() {
 1576                if let Some((_, project_entry)) = cx
 1577                    .update(|cx| {
 1578                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1579                    })?
 1580                    .await
 1581                    .log_err()
 1582                {
 1583                    project_paths.push((path, Some(project_entry)));
 1584                } else {
 1585                    project_paths.push((path, None));
 1586                }
 1587            }
 1588
 1589            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1590                serialized_workspace.id
 1591            } else {
 1592                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1593            };
 1594
 1595            let toolchains = DB.toolchains(workspace_id).await?;
 1596
 1597            for (toolchain, worktree_id, path) in toolchains {
 1598                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1599                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1600                    continue;
 1601                }
 1602
 1603                project_handle
 1604                    .update(cx, |this, cx| {
 1605                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1606                    })?
 1607                    .await;
 1608            }
 1609            if let Some(workspace) = serialized_workspace.as_ref() {
 1610                project_handle.update(cx, |this, cx| {
 1611                    for (scope, toolchains) in &workspace.user_toolchains {
 1612                        for toolchain in toolchains {
 1613                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1614                        }
 1615                    }
 1616                })?;
 1617            }
 1618
 1619            let window = if let Some(window) = requesting_window {
 1620                let centered_layout = serialized_workspace
 1621                    .as_ref()
 1622                    .map(|w| w.centered_layout)
 1623                    .unwrap_or(false);
 1624
 1625                cx.update_window(window.into(), |_, window, cx| {
 1626                    window.replace_root(cx, |window, cx| {
 1627                        let mut workspace = Workspace::new(
 1628                            Some(workspace_id),
 1629                            project_handle.clone(),
 1630                            app_state.clone(),
 1631                            window,
 1632                            cx,
 1633                        );
 1634
 1635                        workspace.centered_layout = centered_layout;
 1636                        workspace
 1637                    });
 1638                })?;
 1639                window
 1640            } else {
 1641                let window_bounds_override = window_bounds_env_override();
 1642
 1643                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1644                    (Some(WindowBounds::Windowed(bounds)), None)
 1645                } else if let Some(workspace) = serialized_workspace.as_ref() {
 1646                    // Reopening an existing workspace - restore its saved bounds
 1647                    if let (Some(display), Some(bounds)) =
 1648                        (workspace.display, workspace.window_bounds.as_ref())
 1649                    {
 1650                        (Some(bounds.0), Some(display))
 1651                    } else {
 1652                        (None, None)
 1653                    }
 1654                } else {
 1655                    // New window - let GPUI's default_bounds() handle cascading
 1656                    (None, None)
 1657                };
 1658
 1659                // Use the serialized workspace to construct the new window
 1660                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1661                options.window_bounds = window_bounds;
 1662                let centered_layout = serialized_workspace
 1663                    .as_ref()
 1664                    .map(|w| w.centered_layout)
 1665                    .unwrap_or(false);
 1666                cx.open_window(options, {
 1667                    let app_state = app_state.clone();
 1668                    let project_handle = project_handle.clone();
 1669                    move |window, cx| {
 1670                        cx.new(|cx| {
 1671                            let mut workspace = Workspace::new(
 1672                                Some(workspace_id),
 1673                                project_handle,
 1674                                app_state,
 1675                                window,
 1676                                cx,
 1677                            );
 1678                            workspace.centered_layout = centered_layout;
 1679                            workspace
 1680                        })
 1681                    }
 1682                })?
 1683            };
 1684
 1685            notify_if_database_failed(window, cx);
 1686            let opened_items = window
 1687                .update(cx, |_workspace, window, cx| {
 1688                    open_items(serialized_workspace, project_paths, window, cx)
 1689                })?
 1690                .await
 1691                .unwrap_or_default();
 1692
 1693            window
 1694                .update(cx, |workspace, window, cx| {
 1695                    window.activate_window();
 1696                    workspace.update_history(cx);
 1697                })
 1698                .log_err();
 1699            Ok((window, opened_items))
 1700        })
 1701    }
 1702
 1703    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1704        self.weak_self.clone()
 1705    }
 1706
 1707    pub fn left_dock(&self) -> &Entity<Dock> {
 1708        &self.left_dock
 1709    }
 1710
 1711    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1712        &self.bottom_dock
 1713    }
 1714
 1715    pub fn set_bottom_dock_layout(
 1716        &mut self,
 1717        layout: BottomDockLayout,
 1718        window: &mut Window,
 1719        cx: &mut Context<Self>,
 1720    ) {
 1721        let fs = self.project().read(cx).fs();
 1722        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1723            content.workspace.bottom_dock_layout = Some(layout);
 1724        });
 1725
 1726        cx.notify();
 1727        self.serialize_workspace(window, cx);
 1728    }
 1729
 1730    pub fn right_dock(&self) -> &Entity<Dock> {
 1731        &self.right_dock
 1732    }
 1733
 1734    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1735        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1736    }
 1737
 1738    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1739        match position {
 1740            DockPosition::Left => &self.left_dock,
 1741            DockPosition::Bottom => &self.bottom_dock,
 1742            DockPosition::Right => &self.right_dock,
 1743        }
 1744    }
 1745
 1746    pub fn is_edited(&self) -> bool {
 1747        self.window_edited
 1748    }
 1749
 1750    pub fn add_panel<T: Panel>(
 1751        &mut self,
 1752        panel: Entity<T>,
 1753        window: &mut Window,
 1754        cx: &mut Context<Self>,
 1755    ) {
 1756        let focus_handle = panel.panel_focus_handle(cx);
 1757        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1758            .detach();
 1759
 1760        let dock_position = panel.position(window, cx);
 1761        let dock = self.dock_at_position(dock_position);
 1762
 1763        dock.update(cx, |dock, cx| {
 1764            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1765        });
 1766    }
 1767
 1768    pub fn remove_panel<T: Panel>(
 1769        &mut self,
 1770        panel: &Entity<T>,
 1771        window: &mut Window,
 1772        cx: &mut Context<Self>,
 1773    ) {
 1774        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1775            dock.update(cx, |dock, cx| {
 1776                dock.remove_panel(panel, window, cx);
 1777            })
 1778        }
 1779    }
 1780
 1781    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1782        &self.status_bar
 1783    }
 1784
 1785    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1786        StatusBarSettings::get_global(cx).show
 1787    }
 1788
 1789    pub fn app_state(&self) -> &Arc<AppState> {
 1790        &self.app_state
 1791    }
 1792
 1793    pub fn user_store(&self) -> &Entity<UserStore> {
 1794        &self.app_state.user_store
 1795    }
 1796
 1797    pub fn project(&self) -> &Entity<Project> {
 1798        &self.project
 1799    }
 1800
 1801    pub fn path_style(&self, cx: &App) -> PathStyle {
 1802        self.project.read(cx).path_style(cx)
 1803    }
 1804
 1805    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1806        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1807
 1808        for pane_handle in &self.panes {
 1809            let pane = pane_handle.read(cx);
 1810
 1811            for entry in pane.activation_history() {
 1812                history.insert(
 1813                    entry.entity_id,
 1814                    history
 1815                        .get(&entry.entity_id)
 1816                        .cloned()
 1817                        .unwrap_or(0)
 1818                        .max(entry.timestamp),
 1819                );
 1820            }
 1821        }
 1822
 1823        history
 1824    }
 1825
 1826    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1827        let mut recent_item: Option<Entity<T>> = None;
 1828        let mut recent_timestamp = 0;
 1829        for pane_handle in &self.panes {
 1830            let pane = pane_handle.read(cx);
 1831            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1832                pane.items().map(|item| (item.item_id(), item)).collect();
 1833            for entry in pane.activation_history() {
 1834                if entry.timestamp > recent_timestamp
 1835                    && let Some(&item) = item_map.get(&entry.entity_id)
 1836                    && let Some(typed_item) = item.act_as::<T>(cx)
 1837                {
 1838                    recent_timestamp = entry.timestamp;
 1839                    recent_item = Some(typed_item);
 1840                }
 1841            }
 1842        }
 1843        recent_item
 1844    }
 1845
 1846    pub fn recent_navigation_history_iter(
 1847        &self,
 1848        cx: &App,
 1849    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1850        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1851        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1852
 1853        for pane in &self.panes {
 1854            let pane = pane.read(cx);
 1855
 1856            pane.nav_history()
 1857                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1858                    if let Some(fs_path) = &fs_path {
 1859                        abs_paths_opened
 1860                            .entry(fs_path.clone())
 1861                            .or_default()
 1862                            .insert(project_path.clone());
 1863                    }
 1864                    let timestamp = entry.timestamp;
 1865                    match history.entry(project_path) {
 1866                        hash_map::Entry::Occupied(mut entry) => {
 1867                            let (_, old_timestamp) = entry.get();
 1868                            if &timestamp > old_timestamp {
 1869                                entry.insert((fs_path, timestamp));
 1870                            }
 1871                        }
 1872                        hash_map::Entry::Vacant(entry) => {
 1873                            entry.insert((fs_path, timestamp));
 1874                        }
 1875                    }
 1876                });
 1877
 1878            if let Some(item) = pane.active_item()
 1879                && let Some(project_path) = item.project_path(cx)
 1880            {
 1881                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1882
 1883                if let Some(fs_path) = &fs_path {
 1884                    abs_paths_opened
 1885                        .entry(fs_path.clone())
 1886                        .or_default()
 1887                        .insert(project_path.clone());
 1888                }
 1889
 1890                history.insert(project_path, (fs_path, std::usize::MAX));
 1891            }
 1892        }
 1893
 1894        history
 1895            .into_iter()
 1896            .sorted_by_key(|(_, (_, order))| *order)
 1897            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1898            .rev()
 1899            .filter(move |(history_path, abs_path)| {
 1900                let latest_project_path_opened = abs_path
 1901                    .as_ref()
 1902                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1903                    .and_then(|project_paths| {
 1904                        project_paths
 1905                            .iter()
 1906                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1907                    });
 1908
 1909                latest_project_path_opened.is_none_or(|path| path == history_path)
 1910            })
 1911    }
 1912
 1913    pub fn recent_navigation_history(
 1914        &self,
 1915        limit: Option<usize>,
 1916        cx: &App,
 1917    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1918        self.recent_navigation_history_iter(cx)
 1919            .take(limit.unwrap_or(usize::MAX))
 1920            .collect()
 1921    }
 1922
 1923    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 1924        for pane in &self.panes {
 1925            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 1926        }
 1927    }
 1928
 1929    fn navigate_history(
 1930        &mut self,
 1931        pane: WeakEntity<Pane>,
 1932        mode: NavigationMode,
 1933        window: &mut Window,
 1934        cx: &mut Context<Workspace>,
 1935    ) -> Task<Result<()>> {
 1936        let to_load = if let Some(pane) = pane.upgrade() {
 1937            pane.update(cx, |pane, cx| {
 1938                window.focus(&pane.focus_handle(cx));
 1939                loop {
 1940                    // Retrieve the weak item handle from the history.
 1941                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1942
 1943                    // If the item is still present in this pane, then activate it.
 1944                    if let Some(index) = entry
 1945                        .item
 1946                        .upgrade()
 1947                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1948                    {
 1949                        let prev_active_item_index = pane.active_item_index();
 1950                        pane.nav_history_mut().set_mode(mode);
 1951                        pane.activate_item(index, true, true, window, cx);
 1952                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1953
 1954                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1955                        if let Some(data) = entry.data {
 1956                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1957                        }
 1958
 1959                        if navigated {
 1960                            break None;
 1961                        }
 1962                    } else {
 1963                        // If the item is no longer present in this pane, then retrieve its
 1964                        // path info in order to reopen it.
 1965                        break pane
 1966                            .nav_history()
 1967                            .path_for_item(entry.item.id())
 1968                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1969                    }
 1970                }
 1971            })
 1972        } else {
 1973            None
 1974        };
 1975
 1976        if let Some((project_path, abs_path, entry)) = to_load {
 1977            // If the item was no longer present, then load it again from its previous path, first try the local path
 1978            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1979
 1980            cx.spawn_in(window, async move  |workspace, cx| {
 1981                let open_by_project_path = open_by_project_path.await;
 1982                let mut navigated = false;
 1983                match open_by_project_path
 1984                    .with_context(|| format!("Navigating to {project_path:?}"))
 1985                {
 1986                    Ok((project_entry_id, build_item)) => {
 1987                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1988                            pane.nav_history_mut().set_mode(mode);
 1989                            pane.active_item().map(|p| p.item_id())
 1990                        })?;
 1991
 1992                        pane.update_in(cx, |pane, window, cx| {
 1993                            let item = pane.open_item(
 1994                                project_entry_id,
 1995                                project_path,
 1996                                true,
 1997                                entry.is_preview,
 1998                                true,
 1999                                None,
 2000                                window, cx,
 2001                                build_item,
 2002                            );
 2003                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2004                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2005                            if let Some(data) = entry.data {
 2006                                navigated |= item.navigate(data, window, cx);
 2007                            }
 2008                        })?;
 2009                    }
 2010                    Err(open_by_project_path_e) => {
 2011                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2012                        // and its worktree is now dropped
 2013                        if let Some(abs_path) = abs_path {
 2014                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2015                                pane.nav_history_mut().set_mode(mode);
 2016                                pane.active_item().map(|p| p.item_id())
 2017                            })?;
 2018                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2019                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2020                            })?;
 2021                            match open_by_abs_path
 2022                                .await
 2023                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2024                            {
 2025                                Ok(item) => {
 2026                                    pane.update_in(cx, |pane, window, cx| {
 2027                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2028                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2029                                        if let Some(data) = entry.data {
 2030                                            navigated |= item.navigate(data, window, cx);
 2031                                        }
 2032                                    })?;
 2033                                }
 2034                                Err(open_by_abs_path_e) => {
 2035                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2036                                }
 2037                            }
 2038                        }
 2039                    }
 2040                }
 2041
 2042                if !navigated {
 2043                    workspace
 2044                        .update_in(cx, |workspace, window, cx| {
 2045                            Self::navigate_history(workspace, pane, mode, window, cx)
 2046                        })?
 2047                        .await?;
 2048                }
 2049
 2050                Ok(())
 2051            })
 2052        } else {
 2053            Task::ready(Ok(()))
 2054        }
 2055    }
 2056
 2057    pub fn go_back(
 2058        &mut self,
 2059        pane: WeakEntity<Pane>,
 2060        window: &mut Window,
 2061        cx: &mut Context<Workspace>,
 2062    ) -> Task<Result<()>> {
 2063        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2064    }
 2065
 2066    pub fn go_forward(
 2067        &mut self,
 2068        pane: WeakEntity<Pane>,
 2069        window: &mut Window,
 2070        cx: &mut Context<Workspace>,
 2071    ) -> Task<Result<()>> {
 2072        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2073    }
 2074
 2075    pub fn reopen_closed_item(
 2076        &mut self,
 2077        window: &mut Window,
 2078        cx: &mut Context<Workspace>,
 2079    ) -> Task<Result<()>> {
 2080        self.navigate_history(
 2081            self.active_pane().downgrade(),
 2082            NavigationMode::ReopeningClosedItem,
 2083            window,
 2084            cx,
 2085        )
 2086    }
 2087
 2088    pub fn client(&self) -> &Arc<Client> {
 2089        &self.app_state.client
 2090    }
 2091
 2092    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2093        self.titlebar_item = Some(item);
 2094        cx.notify();
 2095    }
 2096
 2097    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2098        self.on_prompt_for_new_path = Some(prompt)
 2099    }
 2100
 2101    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2102        self.on_prompt_for_open_path = Some(prompt)
 2103    }
 2104
 2105    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2106        self.terminal_provider = Some(Box::new(provider));
 2107    }
 2108
 2109    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2110        self.debugger_provider = Some(Arc::new(provider));
 2111    }
 2112
 2113    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2114        self.debugger_provider.clone()
 2115    }
 2116
 2117    pub fn prompt_for_open_path(
 2118        &mut self,
 2119        path_prompt_options: PathPromptOptions,
 2120        lister: DirectoryLister,
 2121        window: &mut Window,
 2122        cx: &mut Context<Self>,
 2123    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2124        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2125            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2126            let rx = prompt(self, lister, window, cx);
 2127            self.on_prompt_for_open_path = Some(prompt);
 2128            rx
 2129        } else {
 2130            let (tx, rx) = oneshot::channel();
 2131            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2132
 2133            cx.spawn_in(window, async move |workspace, cx| {
 2134                let Ok(result) = abs_path.await else {
 2135                    return Ok(());
 2136                };
 2137
 2138                match result {
 2139                    Ok(result) => {
 2140                        tx.send(result).ok();
 2141                    }
 2142                    Err(err) => {
 2143                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2144                            workspace.show_portal_error(err.to_string(), cx);
 2145                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2146                            let rx = prompt(workspace, lister, window, cx);
 2147                            workspace.on_prompt_for_open_path = Some(prompt);
 2148                            rx
 2149                        })?;
 2150                        if let Ok(path) = rx.await {
 2151                            tx.send(path).ok();
 2152                        }
 2153                    }
 2154                };
 2155                anyhow::Ok(())
 2156            })
 2157            .detach();
 2158
 2159            rx
 2160        }
 2161    }
 2162
 2163    pub fn prompt_for_new_path(
 2164        &mut self,
 2165        lister: DirectoryLister,
 2166        suggested_name: Option<String>,
 2167        window: &mut Window,
 2168        cx: &mut Context<Self>,
 2169    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2170        if self.project.read(cx).is_via_collab()
 2171            || self.project.read(cx).is_via_remote_server()
 2172            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2173        {
 2174            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2175            let rx = prompt(self, lister, window, cx);
 2176            self.on_prompt_for_new_path = Some(prompt);
 2177            return rx;
 2178        }
 2179
 2180        let (tx, rx) = oneshot::channel();
 2181        cx.spawn_in(window, async move |workspace, cx| {
 2182            let abs_path = workspace.update(cx, |workspace, cx| {
 2183                let relative_to = workspace
 2184                    .most_recent_active_path(cx)
 2185                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2186                    .or_else(|| {
 2187                        let project = workspace.project.read(cx);
 2188                        project.visible_worktrees(cx).find_map(|worktree| {
 2189                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2190                        })
 2191                    })
 2192                    .or_else(std::env::home_dir)
 2193                    .unwrap_or_else(|| PathBuf::from(""));
 2194                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2195            })?;
 2196            let abs_path = match abs_path.await? {
 2197                Ok(path) => path,
 2198                Err(err) => {
 2199                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2200                        workspace.show_portal_error(err.to_string(), cx);
 2201
 2202                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2203                        let rx = prompt(workspace, lister, window, cx);
 2204                        workspace.on_prompt_for_new_path = Some(prompt);
 2205                        rx
 2206                    })?;
 2207                    if let Ok(path) = rx.await {
 2208                        tx.send(path).ok();
 2209                    }
 2210                    return anyhow::Ok(());
 2211                }
 2212            };
 2213
 2214            tx.send(abs_path.map(|path| vec![path])).ok();
 2215            anyhow::Ok(())
 2216        })
 2217        .detach();
 2218
 2219        rx
 2220    }
 2221
 2222    pub fn titlebar_item(&self) -> Option<AnyView> {
 2223        self.titlebar_item.clone()
 2224    }
 2225
 2226    /// Call the given callback with a workspace whose project is local.
 2227    ///
 2228    /// If the given workspace has a local project, then it will be passed
 2229    /// to the callback. Otherwise, a new empty window will be created.
 2230    pub fn with_local_workspace<T, F>(
 2231        &mut self,
 2232        window: &mut Window,
 2233        cx: &mut Context<Self>,
 2234        callback: F,
 2235    ) -> Task<Result<T>>
 2236    where
 2237        T: 'static,
 2238        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2239    {
 2240        if self.project.read(cx).is_local() {
 2241            Task::ready(Ok(callback(self, window, cx)))
 2242        } else {
 2243            let env = self.project.read(cx).cli_environment(cx);
 2244            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2245            cx.spawn_in(window, async move |_vh, cx| {
 2246                let (workspace, _) = task.await?;
 2247                workspace.update(cx, callback)
 2248            })
 2249        }
 2250    }
 2251
 2252    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2253        self.project.read(cx).worktrees(cx)
 2254    }
 2255
 2256    pub fn visible_worktrees<'a>(
 2257        &self,
 2258        cx: &'a App,
 2259    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2260        self.project.read(cx).visible_worktrees(cx)
 2261    }
 2262
 2263    #[cfg(any(test, feature = "test-support"))]
 2264    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2265        let futures = self
 2266            .worktrees(cx)
 2267            .filter_map(|worktree| worktree.read(cx).as_local())
 2268            .map(|worktree| worktree.scan_complete())
 2269            .collect::<Vec<_>>();
 2270        async move {
 2271            for future in futures {
 2272                future.await;
 2273            }
 2274        }
 2275    }
 2276
 2277    pub fn close_global(cx: &mut App) {
 2278        cx.defer(|cx| {
 2279            cx.windows().iter().find(|window| {
 2280                window
 2281                    .update(cx, |_, window, _| {
 2282                        if window.is_window_active() {
 2283                            //This can only get called when the window's project connection has been lost
 2284                            //so we don't need to prompt the user for anything and instead just close the window
 2285                            window.remove_window();
 2286                            true
 2287                        } else {
 2288                            false
 2289                        }
 2290                    })
 2291                    .unwrap_or(false)
 2292            });
 2293        });
 2294    }
 2295
 2296    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2297        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2298        cx.spawn_in(window, async move |_, cx| {
 2299            if prepare.await? {
 2300                cx.update(|window, _cx| window.remove_window())?;
 2301            }
 2302            anyhow::Ok(())
 2303        })
 2304        .detach_and_log_err(cx)
 2305    }
 2306
 2307    pub fn move_focused_panel_to_next_position(
 2308        &mut self,
 2309        _: &MoveFocusedPanelToNextPosition,
 2310        window: &mut Window,
 2311        cx: &mut Context<Self>,
 2312    ) {
 2313        let docks = self.all_docks();
 2314        let active_dock = docks
 2315            .into_iter()
 2316            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2317
 2318        if let Some(dock) = active_dock {
 2319            dock.update(cx, |dock, cx| {
 2320                let active_panel = dock
 2321                    .active_panel()
 2322                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2323
 2324                if let Some(panel) = active_panel {
 2325                    panel.move_to_next_position(window, cx);
 2326                }
 2327            })
 2328        }
 2329    }
 2330
 2331    pub fn prepare_to_close(
 2332        &mut self,
 2333        close_intent: CloseIntent,
 2334        window: &mut Window,
 2335        cx: &mut Context<Self>,
 2336    ) -> Task<Result<bool>> {
 2337        let active_call = self.active_call().cloned();
 2338
 2339        cx.spawn_in(window, async move |this, cx| {
 2340            this.update(cx, |this, _| {
 2341                if close_intent == CloseIntent::CloseWindow {
 2342                    this.removing = true;
 2343                }
 2344            })?;
 2345
 2346            let workspace_count = cx.update(|_window, cx| {
 2347                cx.windows()
 2348                    .iter()
 2349                    .filter(|window| window.downcast::<Workspace>().is_some())
 2350                    .count()
 2351            })?;
 2352
 2353            #[cfg(target_os = "macos")]
 2354            let save_last_workspace = false;
 2355
 2356            // On Linux and Windows, closing the last window should restore the last workspace.
 2357            #[cfg(not(target_os = "macos"))]
 2358            let save_last_workspace = {
 2359                let remaining_workspaces = cx.update(|_window, cx| {
 2360                    cx.windows()
 2361                        .iter()
 2362                        .filter_map(|window| window.downcast::<Workspace>())
 2363                        .filter_map(|workspace| {
 2364                            workspace
 2365                                .update(cx, |workspace, _, _| workspace.removing)
 2366                                .ok()
 2367                        })
 2368                        .filter(|removing| !removing)
 2369                        .count()
 2370                })?;
 2371
 2372                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2373            };
 2374
 2375            if let Some(active_call) = active_call
 2376                && workspace_count == 1
 2377                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2378            {
 2379                if close_intent == CloseIntent::CloseWindow {
 2380                    let answer = cx.update(|window, cx| {
 2381                        window.prompt(
 2382                            PromptLevel::Warning,
 2383                            "Do you want to leave the current call?",
 2384                            None,
 2385                            &["Close window and hang up", "Cancel"],
 2386                            cx,
 2387                        )
 2388                    })?;
 2389
 2390                    if answer.await.log_err() == Some(1) {
 2391                        return anyhow::Ok(false);
 2392                    } else {
 2393                        active_call
 2394                            .update(cx, |call, cx| call.hang_up(cx))?
 2395                            .await
 2396                            .log_err();
 2397                    }
 2398                }
 2399                if close_intent == CloseIntent::ReplaceWindow {
 2400                    _ = active_call.update(cx, |this, cx| {
 2401                        let workspace = cx
 2402                            .windows()
 2403                            .iter()
 2404                            .filter_map(|window| window.downcast::<Workspace>())
 2405                            .next()
 2406                            .unwrap();
 2407                        let project = workspace.read(cx)?.project.clone();
 2408                        if project.read(cx).is_shared() {
 2409                            this.unshare_project(project, cx)?;
 2410                        }
 2411                        Ok::<_, anyhow::Error>(())
 2412                    })?;
 2413                }
 2414            }
 2415
 2416            let save_result = this
 2417                .update_in(cx, |this, window, cx| {
 2418                    this.save_all_internal(SaveIntent::Close, window, cx)
 2419                })?
 2420                .await;
 2421
 2422            // If we're not quitting, but closing, we remove the workspace from
 2423            // the current session.
 2424            if close_intent != CloseIntent::Quit
 2425                && !save_last_workspace
 2426                && save_result.as_ref().is_ok_and(|&res| res)
 2427            {
 2428                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2429                    .await;
 2430            }
 2431
 2432            save_result
 2433        })
 2434    }
 2435
 2436    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2437        self.save_all_internal(
 2438            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2439            window,
 2440            cx,
 2441        )
 2442        .detach_and_log_err(cx);
 2443    }
 2444
 2445    fn send_keystrokes(
 2446        &mut self,
 2447        action: &SendKeystrokes,
 2448        window: &mut Window,
 2449        cx: &mut Context<Self>,
 2450    ) {
 2451        let keystrokes: Vec<Keystroke> = action
 2452            .0
 2453            .split(' ')
 2454            .flat_map(|k| Keystroke::parse(k).log_err())
 2455            .collect();
 2456        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2457    }
 2458
 2459    pub fn send_keystrokes_impl(
 2460        &mut self,
 2461        keystrokes: Vec<Keystroke>,
 2462        window: &mut Window,
 2463        cx: &mut Context<Self>,
 2464    ) -> Shared<Task<()>> {
 2465        let mut state = self.dispatching_keystrokes.borrow_mut();
 2466        if !state.dispatched.insert(keystrokes.clone()) {
 2467            cx.propagate();
 2468            return state.task.clone().unwrap();
 2469        }
 2470
 2471        state.queue.extend(keystrokes);
 2472
 2473        let keystrokes = self.dispatching_keystrokes.clone();
 2474        if state.task.is_none() {
 2475            state.task = Some(
 2476                window
 2477                    .spawn(cx, async move |cx| {
 2478                        // limit to 100 keystrokes to avoid infinite recursion.
 2479                        for _ in 0..100 {
 2480                            let mut state = keystrokes.borrow_mut();
 2481                            let Some(keystroke) = state.queue.pop_front() else {
 2482                                state.dispatched.clear();
 2483                                state.task.take();
 2484                                return;
 2485                            };
 2486                            drop(state);
 2487                            cx.update(|window, cx| {
 2488                                let focused = window.focused(cx);
 2489                                window.dispatch_keystroke(keystroke.clone(), cx);
 2490                                if window.focused(cx) != focused {
 2491                                    // dispatch_keystroke may cause the focus to change.
 2492                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2493                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2494                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2495                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2496                                    // )
 2497                                    window.draw(cx).clear();
 2498                                }
 2499                            })
 2500                            .ok();
 2501                        }
 2502
 2503                        *keystrokes.borrow_mut() = Default::default();
 2504                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2505                    })
 2506                    .shared(),
 2507            );
 2508        }
 2509        state.task.clone().unwrap()
 2510    }
 2511
 2512    fn save_all_internal(
 2513        &mut self,
 2514        mut save_intent: SaveIntent,
 2515        window: &mut Window,
 2516        cx: &mut Context<Self>,
 2517    ) -> Task<Result<bool>> {
 2518        if self.project.read(cx).is_disconnected(cx) {
 2519            return Task::ready(Ok(true));
 2520        }
 2521        let dirty_items = self
 2522            .panes
 2523            .iter()
 2524            .flat_map(|pane| {
 2525                pane.read(cx).items().filter_map(|item| {
 2526                    if item.is_dirty(cx) {
 2527                        item.tab_content_text(0, cx);
 2528                        Some((pane.downgrade(), item.boxed_clone()))
 2529                    } else {
 2530                        None
 2531                    }
 2532                })
 2533            })
 2534            .collect::<Vec<_>>();
 2535
 2536        let project = self.project.clone();
 2537        cx.spawn_in(window, async move |workspace, cx| {
 2538            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2539                let (serialize_tasks, remaining_dirty_items) =
 2540                    workspace.update_in(cx, |workspace, window, cx| {
 2541                        let mut remaining_dirty_items = Vec::new();
 2542                        let mut serialize_tasks = Vec::new();
 2543                        for (pane, item) in dirty_items {
 2544                            if let Some(task) = item
 2545                                .to_serializable_item_handle(cx)
 2546                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2547                            {
 2548                                serialize_tasks.push(task);
 2549                            } else {
 2550                                remaining_dirty_items.push((pane, item));
 2551                            }
 2552                        }
 2553                        (serialize_tasks, remaining_dirty_items)
 2554                    })?;
 2555
 2556                futures::future::try_join_all(serialize_tasks).await?;
 2557
 2558                if remaining_dirty_items.len() > 1 {
 2559                    let answer = workspace.update_in(cx, |_, window, cx| {
 2560                        let detail = Pane::file_names_for_prompt(
 2561                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2562                            cx,
 2563                        );
 2564                        window.prompt(
 2565                            PromptLevel::Warning,
 2566                            "Do you want to save all changes in the following files?",
 2567                            Some(&detail),
 2568                            &["Save all", "Discard all", "Cancel"],
 2569                            cx,
 2570                        )
 2571                    })?;
 2572                    match answer.await.log_err() {
 2573                        Some(0) => save_intent = SaveIntent::SaveAll,
 2574                        Some(1) => save_intent = SaveIntent::Skip,
 2575                        Some(2) => return Ok(false),
 2576                        _ => {}
 2577                    }
 2578                }
 2579
 2580                remaining_dirty_items
 2581            } else {
 2582                dirty_items
 2583            };
 2584
 2585            for (pane, item) in dirty_items {
 2586                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2587                    (
 2588                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2589                        item.project_entry_ids(cx),
 2590                    )
 2591                })?;
 2592                if (singleton || !project_entry_ids.is_empty())
 2593                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2594                {
 2595                    return Ok(false);
 2596                }
 2597            }
 2598            Ok(true)
 2599        })
 2600    }
 2601
 2602    pub fn open_workspace_for_paths(
 2603        &mut self,
 2604        replace_current_window: bool,
 2605        paths: Vec<PathBuf>,
 2606        window: &mut Window,
 2607        cx: &mut Context<Self>,
 2608    ) -> Task<Result<()>> {
 2609        let window_handle = window.window_handle().downcast::<Self>();
 2610        let is_remote = self.project.read(cx).is_via_collab();
 2611        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2612        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2613
 2614        let window_to_replace = if replace_current_window {
 2615            window_handle
 2616        } else if is_remote || has_worktree || has_dirty_items {
 2617            None
 2618        } else {
 2619            window_handle
 2620        };
 2621        let app_state = self.app_state.clone();
 2622
 2623        cx.spawn(async move |_, cx| {
 2624            cx.update(|cx| {
 2625                open_paths(
 2626                    &paths,
 2627                    app_state,
 2628                    OpenOptions {
 2629                        replace_window: window_to_replace,
 2630                        ..Default::default()
 2631                    },
 2632                    cx,
 2633                )
 2634            })?
 2635            .await?;
 2636            Ok(())
 2637        })
 2638    }
 2639
 2640    #[allow(clippy::type_complexity)]
 2641    pub fn open_paths(
 2642        &mut self,
 2643        mut abs_paths: Vec<PathBuf>,
 2644        options: OpenOptions,
 2645        pane: Option<WeakEntity<Pane>>,
 2646        window: &mut Window,
 2647        cx: &mut Context<Self>,
 2648    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2649        let fs = self.app_state.fs.clone();
 2650
 2651        // Sort the paths to ensure we add worktrees for parents before their children.
 2652        abs_paths.sort_unstable();
 2653        cx.spawn_in(window, async move |this, cx| {
 2654            let mut tasks = Vec::with_capacity(abs_paths.len());
 2655
 2656            for abs_path in &abs_paths {
 2657                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2658                    OpenVisible::All => Some(true),
 2659                    OpenVisible::None => Some(false),
 2660                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2661                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2662                        Some(None) => Some(true),
 2663                        None => None,
 2664                    },
 2665                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2666                        Some(Some(metadata)) => Some(metadata.is_dir),
 2667                        Some(None) => Some(false),
 2668                        None => None,
 2669                    },
 2670                };
 2671                let project_path = match visible {
 2672                    Some(visible) => match this
 2673                        .update(cx, |this, cx| {
 2674                            Workspace::project_path_for_path(
 2675                                this.project.clone(),
 2676                                abs_path,
 2677                                visible,
 2678                                cx,
 2679                            )
 2680                        })
 2681                        .log_err()
 2682                    {
 2683                        Some(project_path) => project_path.await.log_err(),
 2684                        None => None,
 2685                    },
 2686                    None => None,
 2687                };
 2688
 2689                let this = this.clone();
 2690                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2691                let fs = fs.clone();
 2692                let pane = pane.clone();
 2693                let task = cx.spawn(async move |cx| {
 2694                    let (worktree, project_path) = project_path?;
 2695                    if fs.is_dir(&abs_path).await {
 2696                        this.update(cx, |workspace, cx| {
 2697                            let worktree = worktree.read(cx);
 2698                            let worktree_abs_path = worktree.abs_path();
 2699                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2700                                worktree.root_entry()
 2701                            } else {
 2702                                abs_path
 2703                                    .strip_prefix(worktree_abs_path.as_ref())
 2704                                    .ok()
 2705                                    .and_then(|relative_path| {
 2706                                        let relative_path =
 2707                                            RelPath::new(relative_path, PathStyle::local())
 2708                                                .log_err()?;
 2709                                        worktree.entry_for_path(&relative_path)
 2710                                    })
 2711                            }
 2712                            .map(|entry| entry.id);
 2713                            if let Some(entry_id) = entry_id {
 2714                                workspace.project.update(cx, |_, cx| {
 2715                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2716                                })
 2717                            }
 2718                        })
 2719                        .ok()?;
 2720                        None
 2721                    } else {
 2722                        Some(
 2723                            this.update_in(cx, |this, window, cx| {
 2724                                this.open_path(
 2725                                    project_path,
 2726                                    pane,
 2727                                    options.focus.unwrap_or(true),
 2728                                    window,
 2729                                    cx,
 2730                                )
 2731                            })
 2732                            .ok()?
 2733                            .await,
 2734                        )
 2735                    }
 2736                });
 2737                tasks.push(task);
 2738            }
 2739
 2740            futures::future::join_all(tasks).await
 2741        })
 2742    }
 2743
 2744    pub fn open_resolved_path(
 2745        &mut self,
 2746        path: ResolvedPath,
 2747        window: &mut Window,
 2748        cx: &mut Context<Self>,
 2749    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2750        match path {
 2751            ResolvedPath::ProjectPath { project_path, .. } => {
 2752                self.open_path(project_path, None, true, window, cx)
 2753            }
 2754            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2755                PathBuf::from(path),
 2756                OpenOptions {
 2757                    visible: Some(OpenVisible::None),
 2758                    ..Default::default()
 2759                },
 2760                window,
 2761                cx,
 2762            ),
 2763        }
 2764    }
 2765
 2766    pub fn absolute_path_of_worktree(
 2767        &self,
 2768        worktree_id: WorktreeId,
 2769        cx: &mut Context<Self>,
 2770    ) -> Option<PathBuf> {
 2771        self.project
 2772            .read(cx)
 2773            .worktree_for_id(worktree_id, cx)
 2774            // TODO: use `abs_path` or `root_dir`
 2775            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2776    }
 2777
 2778    fn add_folder_to_project(
 2779        &mut self,
 2780        _: &AddFolderToProject,
 2781        window: &mut Window,
 2782        cx: &mut Context<Self>,
 2783    ) {
 2784        let project = self.project.read(cx);
 2785        if project.is_via_collab() {
 2786            self.show_error(
 2787                &anyhow!("You cannot add folders to someone else's project"),
 2788                cx,
 2789            );
 2790            return;
 2791        }
 2792        let paths = self.prompt_for_open_path(
 2793            PathPromptOptions {
 2794                files: false,
 2795                directories: true,
 2796                multiple: true,
 2797                prompt: None,
 2798            },
 2799            DirectoryLister::Project(self.project.clone()),
 2800            window,
 2801            cx,
 2802        );
 2803        cx.spawn_in(window, async move |this, cx| {
 2804            if let Some(paths) = paths.await.log_err().flatten() {
 2805                let results = this
 2806                    .update_in(cx, |this, window, cx| {
 2807                        this.open_paths(
 2808                            paths,
 2809                            OpenOptions {
 2810                                visible: Some(OpenVisible::All),
 2811                                ..Default::default()
 2812                            },
 2813                            None,
 2814                            window,
 2815                            cx,
 2816                        )
 2817                    })?
 2818                    .await;
 2819                for result in results.into_iter().flatten() {
 2820                    result.log_err();
 2821                }
 2822            }
 2823            anyhow::Ok(())
 2824        })
 2825        .detach_and_log_err(cx);
 2826    }
 2827
 2828    pub fn project_path_for_path(
 2829        project: Entity<Project>,
 2830        abs_path: &Path,
 2831        visible: bool,
 2832        cx: &mut App,
 2833    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2834        let entry = project.update(cx, |project, cx| {
 2835            project.find_or_create_worktree(abs_path, visible, cx)
 2836        });
 2837        cx.spawn(async move |cx| {
 2838            let (worktree, path) = entry.await?;
 2839            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2840            Ok((
 2841                worktree,
 2842                ProjectPath {
 2843                    worktree_id,
 2844                    path: path,
 2845                },
 2846            ))
 2847        })
 2848    }
 2849
 2850    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2851        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2852    }
 2853
 2854    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2855        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2856    }
 2857
 2858    pub fn items_of_type<'a, T: Item>(
 2859        &'a self,
 2860        cx: &'a App,
 2861    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2862        self.panes
 2863            .iter()
 2864            .flat_map(|pane| pane.read(cx).items_of_type())
 2865    }
 2866
 2867    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2868        self.active_pane().read(cx).active_item()
 2869    }
 2870
 2871    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2872        let item = self.active_item(cx)?;
 2873        item.to_any_view().downcast::<I>().ok()
 2874    }
 2875
 2876    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2877        self.active_item(cx).and_then(|item| item.project_path(cx))
 2878    }
 2879
 2880    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2881        self.recent_navigation_history_iter(cx)
 2882            .filter_map(|(path, abs_path)| {
 2883                let worktree = self
 2884                    .project
 2885                    .read(cx)
 2886                    .worktree_for_id(path.worktree_id, cx)?;
 2887                if worktree.read(cx).is_visible() {
 2888                    abs_path
 2889                } else {
 2890                    None
 2891                }
 2892            })
 2893            .next()
 2894    }
 2895
 2896    pub fn save_active_item(
 2897        &mut self,
 2898        save_intent: SaveIntent,
 2899        window: &mut Window,
 2900        cx: &mut App,
 2901    ) -> Task<Result<()>> {
 2902        let project = self.project.clone();
 2903        let pane = self.active_pane();
 2904        let item = pane.read(cx).active_item();
 2905        let pane = pane.downgrade();
 2906
 2907        window.spawn(cx, async move |cx| {
 2908            if let Some(item) = item {
 2909                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2910                    .await
 2911                    .map(|_| ())
 2912            } else {
 2913                Ok(())
 2914            }
 2915        })
 2916    }
 2917
 2918    pub fn close_inactive_items_and_panes(
 2919        &mut self,
 2920        action: &CloseInactiveTabsAndPanes,
 2921        window: &mut Window,
 2922        cx: &mut Context<Self>,
 2923    ) {
 2924        if let Some(task) = self.close_all_internal(
 2925            true,
 2926            action.save_intent.unwrap_or(SaveIntent::Close),
 2927            window,
 2928            cx,
 2929        ) {
 2930            task.detach_and_log_err(cx)
 2931        }
 2932    }
 2933
 2934    pub fn close_all_items_and_panes(
 2935        &mut self,
 2936        action: &CloseAllItemsAndPanes,
 2937        window: &mut Window,
 2938        cx: &mut Context<Self>,
 2939    ) {
 2940        if let Some(task) = self.close_all_internal(
 2941            false,
 2942            action.save_intent.unwrap_or(SaveIntent::Close),
 2943            window,
 2944            cx,
 2945        ) {
 2946            task.detach_and_log_err(cx)
 2947        }
 2948    }
 2949
 2950    fn close_all_internal(
 2951        &mut self,
 2952        retain_active_pane: bool,
 2953        save_intent: SaveIntent,
 2954        window: &mut Window,
 2955        cx: &mut Context<Self>,
 2956    ) -> Option<Task<Result<()>>> {
 2957        let current_pane = self.active_pane();
 2958
 2959        let mut tasks = Vec::new();
 2960
 2961        if retain_active_pane {
 2962            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2963                pane.close_other_items(
 2964                    &CloseOtherItems {
 2965                        save_intent: None,
 2966                        close_pinned: false,
 2967                    },
 2968                    None,
 2969                    window,
 2970                    cx,
 2971                )
 2972            });
 2973
 2974            tasks.push(current_pane_close);
 2975        }
 2976
 2977        for pane in self.panes() {
 2978            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2979                continue;
 2980            }
 2981
 2982            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2983                pane.close_all_items(
 2984                    &CloseAllItems {
 2985                        save_intent: Some(save_intent),
 2986                        close_pinned: false,
 2987                    },
 2988                    window,
 2989                    cx,
 2990                )
 2991            });
 2992
 2993            tasks.push(close_pane_items)
 2994        }
 2995
 2996        if tasks.is_empty() {
 2997            None
 2998        } else {
 2999            Some(cx.spawn_in(window, async move |_, _| {
 3000                for task in tasks {
 3001                    task.await?
 3002                }
 3003                Ok(())
 3004            }))
 3005        }
 3006    }
 3007
 3008    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3009        self.dock_at_position(position).read(cx).is_open()
 3010    }
 3011
 3012    pub fn toggle_dock(
 3013        &mut self,
 3014        dock_side: DockPosition,
 3015        window: &mut Window,
 3016        cx: &mut Context<Self>,
 3017    ) {
 3018        let mut focus_center = false;
 3019        let mut reveal_dock = false;
 3020
 3021        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3022        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3023        if was_visible {
 3024            self.save_open_dock_positions(cx);
 3025        }
 3026
 3027        let dock = self.dock_at_position(dock_side);
 3028        dock.update(cx, |dock, cx| {
 3029            dock.set_open(!was_visible, window, cx);
 3030
 3031            if dock.active_panel().is_none() {
 3032                let Some(panel_ix) = dock
 3033                    .first_enabled_panel_idx(cx)
 3034                    .log_with_level(log::Level::Info)
 3035                else {
 3036                    return;
 3037                };
 3038                dock.activate_panel(panel_ix, window, cx);
 3039            }
 3040
 3041            if let Some(active_panel) = dock.active_panel() {
 3042                if was_visible {
 3043                    if active_panel
 3044                        .panel_focus_handle(cx)
 3045                        .contains_focused(window, cx)
 3046                    {
 3047                        focus_center = true;
 3048                    }
 3049                } else {
 3050                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3051                    window.focus(focus_handle);
 3052                    reveal_dock = true;
 3053                }
 3054            }
 3055        });
 3056
 3057        if reveal_dock {
 3058            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3059        }
 3060
 3061        if focus_center {
 3062            self.active_pane
 3063                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3064        }
 3065
 3066        cx.notify();
 3067        self.serialize_workspace(window, cx);
 3068    }
 3069
 3070    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3071        self.all_docks().into_iter().find(|&dock| {
 3072            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3073        })
 3074    }
 3075
 3076    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3077        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3078            self.save_open_dock_positions(cx);
 3079            dock.update(cx, |dock, cx| {
 3080                dock.set_open(false, window, cx);
 3081            });
 3082            return true;
 3083        }
 3084        false
 3085    }
 3086
 3087    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3088        self.save_open_dock_positions(cx);
 3089        for dock in self.all_docks() {
 3090            dock.update(cx, |dock, cx| {
 3091                dock.set_open(false, window, cx);
 3092            });
 3093        }
 3094
 3095        cx.focus_self(window);
 3096        cx.notify();
 3097        self.serialize_workspace(window, cx);
 3098    }
 3099
 3100    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3101        self.all_docks()
 3102            .into_iter()
 3103            .filter_map(|dock| {
 3104                let dock_ref = dock.read(cx);
 3105                if dock_ref.is_open() {
 3106                    Some(dock_ref.position())
 3107                } else {
 3108                    None
 3109                }
 3110            })
 3111            .collect()
 3112    }
 3113
 3114    /// Saves the positions of currently open docks.
 3115    ///
 3116    /// Updates `last_open_dock_positions` with positions of all currently open
 3117    /// docks, to later be restored by the 'Toggle All Docks' action.
 3118    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3119        let open_dock_positions = self.get_open_dock_positions(cx);
 3120        if !open_dock_positions.is_empty() {
 3121            self.last_open_dock_positions = open_dock_positions;
 3122        }
 3123    }
 3124
 3125    /// Toggles all docks between open and closed states.
 3126    ///
 3127    /// If any docks are open, closes all and remembers their positions. If all
 3128    /// docks are closed, restores the last remembered dock configuration.
 3129    fn toggle_all_docks(
 3130        &mut self,
 3131        _: &ToggleAllDocks,
 3132        window: &mut Window,
 3133        cx: &mut Context<Self>,
 3134    ) {
 3135        let open_dock_positions = self.get_open_dock_positions(cx);
 3136
 3137        if !open_dock_positions.is_empty() {
 3138            self.close_all_docks(window, cx);
 3139        } else if !self.last_open_dock_positions.is_empty() {
 3140            self.restore_last_open_docks(window, cx);
 3141        }
 3142    }
 3143
 3144    /// Reopens docks from the most recently remembered configuration.
 3145    ///
 3146    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3147    /// and clears the stored positions.
 3148    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3149        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3150
 3151        for position in positions_to_open {
 3152            let dock = self.dock_at_position(position);
 3153            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3154        }
 3155
 3156        cx.focus_self(window);
 3157        cx.notify();
 3158        self.serialize_workspace(window, cx);
 3159    }
 3160
 3161    /// Transfer focus to the panel of the given type.
 3162    pub fn focus_panel<T: Panel>(
 3163        &mut self,
 3164        window: &mut Window,
 3165        cx: &mut Context<Self>,
 3166    ) -> Option<Entity<T>> {
 3167        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3168        panel.to_any().downcast().ok()
 3169    }
 3170
 3171    /// Focus the panel of the given type if it isn't already focused. If it is
 3172    /// already focused, then transfer focus back to the workspace center.
 3173    pub fn toggle_panel_focus<T: Panel>(
 3174        &mut self,
 3175        window: &mut Window,
 3176        cx: &mut Context<Self>,
 3177    ) -> bool {
 3178        let mut did_focus_panel = false;
 3179        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3180            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3181            did_focus_panel
 3182        });
 3183        did_focus_panel
 3184    }
 3185
 3186    pub fn activate_panel_for_proto_id(
 3187        &mut self,
 3188        panel_id: PanelId,
 3189        window: &mut Window,
 3190        cx: &mut Context<Self>,
 3191    ) -> Option<Arc<dyn PanelHandle>> {
 3192        let mut panel = None;
 3193        for dock in self.all_docks() {
 3194            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3195                panel = dock.update(cx, |dock, cx| {
 3196                    dock.activate_panel(panel_index, window, cx);
 3197                    dock.set_open(true, window, cx);
 3198                    dock.active_panel().cloned()
 3199                });
 3200                break;
 3201            }
 3202        }
 3203
 3204        if panel.is_some() {
 3205            cx.notify();
 3206            self.serialize_workspace(window, cx);
 3207        }
 3208
 3209        panel
 3210    }
 3211
 3212    /// Focus or unfocus the given panel type, depending on the given callback.
 3213    fn focus_or_unfocus_panel<T: Panel>(
 3214        &mut self,
 3215        window: &mut Window,
 3216        cx: &mut Context<Self>,
 3217        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3218    ) -> Option<Arc<dyn PanelHandle>> {
 3219        let mut result_panel = None;
 3220        let mut serialize = false;
 3221        for dock in self.all_docks() {
 3222            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3223                let mut focus_center = false;
 3224                let panel = dock.update(cx, |dock, cx| {
 3225                    dock.activate_panel(panel_index, window, cx);
 3226
 3227                    let panel = dock.active_panel().cloned();
 3228                    if let Some(panel) = panel.as_ref() {
 3229                        if should_focus(&**panel, window, cx) {
 3230                            dock.set_open(true, window, cx);
 3231                            panel.panel_focus_handle(cx).focus(window);
 3232                        } else {
 3233                            focus_center = true;
 3234                        }
 3235                    }
 3236                    panel
 3237                });
 3238
 3239                if focus_center {
 3240                    self.active_pane
 3241                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3242                }
 3243
 3244                result_panel = panel;
 3245                serialize = true;
 3246                break;
 3247            }
 3248        }
 3249
 3250        if serialize {
 3251            self.serialize_workspace(window, cx);
 3252        }
 3253
 3254        cx.notify();
 3255        result_panel
 3256    }
 3257
 3258    /// Open the panel of the given type
 3259    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3260        for dock in self.all_docks() {
 3261            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3262                dock.update(cx, |dock, cx| {
 3263                    dock.activate_panel(panel_index, window, cx);
 3264                    dock.set_open(true, window, cx);
 3265                });
 3266            }
 3267        }
 3268    }
 3269
 3270    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3271        for dock in self.all_docks().iter() {
 3272            dock.update(cx, |dock, cx| {
 3273                if dock.panel::<T>().is_some() {
 3274                    dock.set_open(false, window, cx)
 3275                }
 3276            })
 3277        }
 3278    }
 3279
 3280    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3281        self.all_docks()
 3282            .iter()
 3283            .find_map(|dock| dock.read(cx).panel::<T>())
 3284    }
 3285
 3286    fn dismiss_zoomed_items_to_reveal(
 3287        &mut self,
 3288        dock_to_reveal: Option<DockPosition>,
 3289        window: &mut Window,
 3290        cx: &mut Context<Self>,
 3291    ) {
 3292        // If a center pane is zoomed, unzoom it.
 3293        for pane in &self.panes {
 3294            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3295                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3296            }
 3297        }
 3298
 3299        // If another dock is zoomed, hide it.
 3300        let mut focus_center = false;
 3301        for dock in self.all_docks() {
 3302            dock.update(cx, |dock, cx| {
 3303                if Some(dock.position()) != dock_to_reveal
 3304                    && let Some(panel) = dock.active_panel()
 3305                    && panel.is_zoomed(window, cx)
 3306                {
 3307                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3308                    dock.set_open(false, window, cx);
 3309                }
 3310            });
 3311        }
 3312
 3313        if focus_center {
 3314            self.active_pane
 3315                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3316        }
 3317
 3318        if self.zoomed_position != dock_to_reveal {
 3319            self.zoomed = None;
 3320            self.zoomed_position = None;
 3321            cx.emit(Event::ZoomChanged);
 3322        }
 3323
 3324        cx.notify();
 3325    }
 3326
 3327    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3328        let pane = cx.new(|cx| {
 3329            let mut pane = Pane::new(
 3330                self.weak_handle(),
 3331                self.project.clone(),
 3332                self.pane_history_timestamp.clone(),
 3333                None,
 3334                NewFile.boxed_clone(),
 3335                true,
 3336                window,
 3337                cx,
 3338            );
 3339            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3340            pane
 3341        });
 3342        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3343            .detach();
 3344        self.panes.push(pane.clone());
 3345
 3346        window.focus(&pane.focus_handle(cx));
 3347
 3348        cx.emit(Event::PaneAdded(pane.clone()));
 3349        pane
 3350    }
 3351
 3352    pub fn add_item_to_center(
 3353        &mut self,
 3354        item: Box<dyn ItemHandle>,
 3355        window: &mut Window,
 3356        cx: &mut Context<Self>,
 3357    ) -> bool {
 3358        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3359            if let Some(center_pane) = center_pane.upgrade() {
 3360                center_pane.update(cx, |pane, cx| {
 3361                    pane.add_item(item, true, true, None, window, cx)
 3362                });
 3363                true
 3364            } else {
 3365                false
 3366            }
 3367        } else {
 3368            false
 3369        }
 3370    }
 3371
 3372    pub fn add_item_to_active_pane(
 3373        &mut self,
 3374        item: Box<dyn ItemHandle>,
 3375        destination_index: Option<usize>,
 3376        focus_item: bool,
 3377        window: &mut Window,
 3378        cx: &mut App,
 3379    ) {
 3380        self.add_item(
 3381            self.active_pane.clone(),
 3382            item,
 3383            destination_index,
 3384            false,
 3385            focus_item,
 3386            window,
 3387            cx,
 3388        )
 3389    }
 3390
 3391    pub fn add_item(
 3392        &mut self,
 3393        pane: Entity<Pane>,
 3394        item: Box<dyn ItemHandle>,
 3395        destination_index: Option<usize>,
 3396        activate_pane: bool,
 3397        focus_item: bool,
 3398        window: &mut Window,
 3399        cx: &mut App,
 3400    ) {
 3401        pane.update(cx, |pane, cx| {
 3402            pane.add_item(
 3403                item,
 3404                activate_pane,
 3405                focus_item,
 3406                destination_index,
 3407                window,
 3408                cx,
 3409            )
 3410        });
 3411    }
 3412
 3413    pub fn split_item(
 3414        &mut self,
 3415        split_direction: SplitDirection,
 3416        item: Box<dyn ItemHandle>,
 3417        window: &mut Window,
 3418        cx: &mut Context<Self>,
 3419    ) {
 3420        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3421        self.add_item(new_pane, item, None, true, true, window, cx);
 3422    }
 3423
 3424    pub fn open_abs_path(
 3425        &mut self,
 3426        abs_path: PathBuf,
 3427        options: OpenOptions,
 3428        window: &mut Window,
 3429        cx: &mut Context<Self>,
 3430    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3431        cx.spawn_in(window, async move |workspace, cx| {
 3432            let open_paths_task_result = workspace
 3433                .update_in(cx, |workspace, window, cx| {
 3434                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3435                })
 3436                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3437                .await;
 3438            anyhow::ensure!(
 3439                open_paths_task_result.len() == 1,
 3440                "open abs path {abs_path:?} task returned incorrect number of results"
 3441            );
 3442            match open_paths_task_result
 3443                .into_iter()
 3444                .next()
 3445                .expect("ensured single task result")
 3446            {
 3447                Some(open_result) => {
 3448                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3449                }
 3450                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3451            }
 3452        })
 3453    }
 3454
 3455    pub fn split_abs_path(
 3456        &mut self,
 3457        abs_path: PathBuf,
 3458        visible: bool,
 3459        window: &mut Window,
 3460        cx: &mut Context<Self>,
 3461    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3462        let project_path_task =
 3463            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3464        cx.spawn_in(window, async move |this, cx| {
 3465            let (_, path) = project_path_task.await?;
 3466            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3467                .await
 3468        })
 3469    }
 3470
 3471    pub fn open_path(
 3472        &mut self,
 3473        path: impl Into<ProjectPath>,
 3474        pane: Option<WeakEntity<Pane>>,
 3475        focus_item: bool,
 3476        window: &mut Window,
 3477        cx: &mut App,
 3478    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3479        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3480    }
 3481
 3482    pub fn open_path_preview(
 3483        &mut self,
 3484        path: impl Into<ProjectPath>,
 3485        pane: Option<WeakEntity<Pane>>,
 3486        focus_item: bool,
 3487        allow_preview: bool,
 3488        activate: bool,
 3489        window: &mut Window,
 3490        cx: &mut App,
 3491    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3492        let pane = pane.unwrap_or_else(|| {
 3493            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3494                self.panes
 3495                    .first()
 3496                    .expect("There must be an active pane")
 3497                    .downgrade()
 3498            })
 3499        });
 3500
 3501        let project_path = path.into();
 3502        let task = self.load_path(project_path.clone(), window, cx);
 3503        window.spawn(cx, async move |cx| {
 3504            let (project_entry_id, build_item) = task.await?;
 3505
 3506            pane.update_in(cx, |pane, window, cx| {
 3507                pane.open_item(
 3508                    project_entry_id,
 3509                    project_path,
 3510                    focus_item,
 3511                    allow_preview,
 3512                    activate,
 3513                    None,
 3514                    window,
 3515                    cx,
 3516                    build_item,
 3517                )
 3518            })
 3519        })
 3520    }
 3521
 3522    pub fn split_path(
 3523        &mut self,
 3524        path: impl Into<ProjectPath>,
 3525        window: &mut Window,
 3526        cx: &mut Context<Self>,
 3527    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3528        self.split_path_preview(path, false, None, window, cx)
 3529    }
 3530
 3531    pub fn split_path_preview(
 3532        &mut self,
 3533        path: impl Into<ProjectPath>,
 3534        allow_preview: bool,
 3535        split_direction: Option<SplitDirection>,
 3536        window: &mut Window,
 3537        cx: &mut Context<Self>,
 3538    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3539        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3540            self.panes
 3541                .first()
 3542                .expect("There must be an active pane")
 3543                .downgrade()
 3544        });
 3545
 3546        if let Member::Pane(center_pane) = &self.center.root
 3547            && center_pane.read(cx).items_len() == 0
 3548        {
 3549            return self.open_path(path, Some(pane), true, window, cx);
 3550        }
 3551
 3552        let project_path = path.into();
 3553        let task = self.load_path(project_path.clone(), window, cx);
 3554        cx.spawn_in(window, async move |this, cx| {
 3555            let (project_entry_id, build_item) = task.await?;
 3556            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3557                let pane = pane.upgrade()?;
 3558                let new_pane = this.split_pane(
 3559                    pane,
 3560                    split_direction.unwrap_or(SplitDirection::Right),
 3561                    window,
 3562                    cx,
 3563                );
 3564                new_pane.update(cx, |new_pane, cx| {
 3565                    Some(new_pane.open_item(
 3566                        project_entry_id,
 3567                        project_path,
 3568                        true,
 3569                        allow_preview,
 3570                        true,
 3571                        None,
 3572                        window,
 3573                        cx,
 3574                        build_item,
 3575                    ))
 3576                })
 3577            })
 3578            .map(|option| option.context("pane was dropped"))?
 3579        })
 3580    }
 3581
 3582    fn load_path(
 3583        &mut self,
 3584        path: ProjectPath,
 3585        window: &mut Window,
 3586        cx: &mut App,
 3587    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3588        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3589        registry.open_path(self.project(), &path, window, cx)
 3590    }
 3591
 3592    pub fn find_project_item<T>(
 3593        &self,
 3594        pane: &Entity<Pane>,
 3595        project_item: &Entity<T::Item>,
 3596        cx: &App,
 3597    ) -> Option<Entity<T>>
 3598    where
 3599        T: ProjectItem,
 3600    {
 3601        use project::ProjectItem as _;
 3602        let project_item = project_item.read(cx);
 3603        let entry_id = project_item.entry_id(cx);
 3604        let project_path = project_item.project_path(cx);
 3605
 3606        let mut item = None;
 3607        if let Some(entry_id) = entry_id {
 3608            item = pane.read(cx).item_for_entry(entry_id, cx);
 3609        }
 3610        if item.is_none()
 3611            && let Some(project_path) = project_path
 3612        {
 3613            item = pane.read(cx).item_for_path(project_path, cx);
 3614        }
 3615
 3616        item.and_then(|item| item.downcast::<T>())
 3617    }
 3618
 3619    pub fn is_project_item_open<T>(
 3620        &self,
 3621        pane: &Entity<Pane>,
 3622        project_item: &Entity<T::Item>,
 3623        cx: &App,
 3624    ) -> bool
 3625    where
 3626        T: ProjectItem,
 3627    {
 3628        self.find_project_item::<T>(pane, project_item, cx)
 3629            .is_some()
 3630    }
 3631
 3632    pub fn open_project_item<T>(
 3633        &mut self,
 3634        pane: Entity<Pane>,
 3635        project_item: Entity<T::Item>,
 3636        activate_pane: bool,
 3637        focus_item: bool,
 3638        keep_old_preview: bool,
 3639        allow_new_preview: bool,
 3640        window: &mut Window,
 3641        cx: &mut Context<Self>,
 3642    ) -> Entity<T>
 3643    where
 3644        T: ProjectItem,
 3645    {
 3646        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3647
 3648        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3649            if !keep_old_preview
 3650                && let Some(old_id) = old_item_id
 3651                && old_id != item.item_id()
 3652            {
 3653                // switching to a different item, so unpreview old active item
 3654                pane.update(cx, |pane, _| {
 3655                    pane.unpreview_item_if_preview(old_id);
 3656                });
 3657            }
 3658
 3659            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3660            if !allow_new_preview {
 3661                pane.update(cx, |pane, _| {
 3662                    pane.unpreview_item_if_preview(item.item_id());
 3663                });
 3664            }
 3665            return item;
 3666        }
 3667
 3668        let item = pane.update(cx, |pane, cx| {
 3669            cx.new(|cx| {
 3670                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3671            })
 3672        });
 3673        let mut destination_index = None;
 3674        pane.update(cx, |pane, cx| {
 3675            if !keep_old_preview && let Some(old_id) = old_item_id {
 3676                pane.unpreview_item_if_preview(old_id);
 3677            }
 3678            if allow_new_preview {
 3679                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3680            }
 3681        });
 3682
 3683        self.add_item(
 3684            pane,
 3685            Box::new(item.clone()),
 3686            destination_index,
 3687            activate_pane,
 3688            focus_item,
 3689            window,
 3690            cx,
 3691        );
 3692        item
 3693    }
 3694
 3695    pub fn open_shared_screen(
 3696        &mut self,
 3697        peer_id: PeerId,
 3698        window: &mut Window,
 3699        cx: &mut Context<Self>,
 3700    ) {
 3701        if let Some(shared_screen) =
 3702            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3703        {
 3704            self.active_pane.update(cx, |pane, cx| {
 3705                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3706            });
 3707        }
 3708    }
 3709
 3710    pub fn activate_item(
 3711        &mut self,
 3712        item: &dyn ItemHandle,
 3713        activate_pane: bool,
 3714        focus_item: bool,
 3715        window: &mut Window,
 3716        cx: &mut App,
 3717    ) -> bool {
 3718        let result = self.panes.iter().find_map(|pane| {
 3719            pane.read(cx)
 3720                .index_for_item(item)
 3721                .map(|ix| (pane.clone(), ix))
 3722        });
 3723        if let Some((pane, ix)) = result {
 3724            pane.update(cx, |pane, cx| {
 3725                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3726            });
 3727            true
 3728        } else {
 3729            false
 3730        }
 3731    }
 3732
 3733    fn activate_pane_at_index(
 3734        &mut self,
 3735        action: &ActivatePane,
 3736        window: &mut Window,
 3737        cx: &mut Context<Self>,
 3738    ) {
 3739        let panes = self.center.panes();
 3740        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3741            window.focus(&pane.focus_handle(cx));
 3742        } else {
 3743            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3744                .detach();
 3745        }
 3746    }
 3747
 3748    fn move_item_to_pane_at_index(
 3749        &mut self,
 3750        action: &MoveItemToPane,
 3751        window: &mut Window,
 3752        cx: &mut Context<Self>,
 3753    ) {
 3754        let panes = self.center.panes();
 3755        let destination = match panes.get(action.destination) {
 3756            Some(&destination) => destination.clone(),
 3757            None => {
 3758                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3759                    return;
 3760                }
 3761                let direction = SplitDirection::Right;
 3762                let split_off_pane = self
 3763                    .find_pane_in_direction(direction, cx)
 3764                    .unwrap_or_else(|| self.active_pane.clone());
 3765                let new_pane = self.add_pane(window, cx);
 3766                if self
 3767                    .center
 3768                    .split(&split_off_pane, &new_pane, direction)
 3769                    .log_err()
 3770                    .is_none()
 3771                {
 3772                    return;
 3773                };
 3774                new_pane
 3775            }
 3776        };
 3777
 3778        if action.clone {
 3779            if self
 3780                .active_pane
 3781                .read(cx)
 3782                .active_item()
 3783                .is_some_and(|item| item.can_split(cx))
 3784            {
 3785                clone_active_item(
 3786                    self.database_id(),
 3787                    &self.active_pane,
 3788                    &destination,
 3789                    action.focus,
 3790                    window,
 3791                    cx,
 3792                );
 3793                return;
 3794            }
 3795        }
 3796        move_active_item(
 3797            &self.active_pane,
 3798            &destination,
 3799            action.focus,
 3800            true,
 3801            window,
 3802            cx,
 3803        )
 3804    }
 3805
 3806    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3807        let panes = self.center.panes();
 3808        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3809            let next_ix = (ix + 1) % panes.len();
 3810            let next_pane = panes[next_ix].clone();
 3811            window.focus(&next_pane.focus_handle(cx));
 3812        }
 3813    }
 3814
 3815    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3816        let panes = self.center.panes();
 3817        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3818            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3819            let prev_pane = panes[prev_ix].clone();
 3820            window.focus(&prev_pane.focus_handle(cx));
 3821        }
 3822    }
 3823
 3824    pub fn activate_pane_in_direction(
 3825        &mut self,
 3826        direction: SplitDirection,
 3827        window: &mut Window,
 3828        cx: &mut App,
 3829    ) {
 3830        use ActivateInDirectionTarget as Target;
 3831        enum Origin {
 3832            LeftDock,
 3833            RightDock,
 3834            BottomDock,
 3835            Center,
 3836        }
 3837
 3838        let origin: Origin = [
 3839            (&self.left_dock, Origin::LeftDock),
 3840            (&self.right_dock, Origin::RightDock),
 3841            (&self.bottom_dock, Origin::BottomDock),
 3842        ]
 3843        .into_iter()
 3844        .find_map(|(dock, origin)| {
 3845            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3846                Some(origin)
 3847            } else {
 3848                None
 3849            }
 3850        })
 3851        .unwrap_or(Origin::Center);
 3852
 3853        let get_last_active_pane = || {
 3854            let pane = self
 3855                .last_active_center_pane
 3856                .clone()
 3857                .unwrap_or_else(|| {
 3858                    self.panes
 3859                        .first()
 3860                        .expect("There must be an active pane")
 3861                        .downgrade()
 3862                })
 3863                .upgrade()?;
 3864            (pane.read(cx).items_len() != 0).then_some(pane)
 3865        };
 3866
 3867        let try_dock =
 3868            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3869
 3870        let target = match (origin, direction) {
 3871            // We're in the center, so we first try to go to a different pane,
 3872            // otherwise try to go to a dock.
 3873            (Origin::Center, direction) => {
 3874                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3875                    Some(Target::Pane(pane))
 3876                } else {
 3877                    match direction {
 3878                        SplitDirection::Up => None,
 3879                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3880                        SplitDirection::Left => try_dock(&self.left_dock),
 3881                        SplitDirection::Right => try_dock(&self.right_dock),
 3882                    }
 3883                }
 3884            }
 3885
 3886            (Origin::LeftDock, SplitDirection::Right) => {
 3887                if let Some(last_active_pane) = get_last_active_pane() {
 3888                    Some(Target::Pane(last_active_pane))
 3889                } else {
 3890                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3891                }
 3892            }
 3893
 3894            (Origin::LeftDock, SplitDirection::Down)
 3895            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3896
 3897            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3898            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3899            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3900
 3901            (Origin::RightDock, SplitDirection::Left) => {
 3902                if let Some(last_active_pane) = get_last_active_pane() {
 3903                    Some(Target::Pane(last_active_pane))
 3904                } else {
 3905                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3906                }
 3907            }
 3908
 3909            _ => None,
 3910        };
 3911
 3912        match target {
 3913            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3914                let pane = pane.read(cx);
 3915                if let Some(item) = pane.active_item() {
 3916                    item.item_focus_handle(cx).focus(window);
 3917                } else {
 3918                    log::error!(
 3919                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3920                    );
 3921                }
 3922            }
 3923            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3924                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3925                window.defer(cx, move |window, cx| {
 3926                    let dock = dock.read(cx);
 3927                    if let Some(panel) = dock.active_panel() {
 3928                        panel.panel_focus_handle(cx).focus(window);
 3929                    } else {
 3930                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3931                    }
 3932                })
 3933            }
 3934            None => {}
 3935        }
 3936    }
 3937
 3938    pub fn move_item_to_pane_in_direction(
 3939        &mut self,
 3940        action: &MoveItemToPaneInDirection,
 3941        window: &mut Window,
 3942        cx: &mut Context<Self>,
 3943    ) {
 3944        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3945            Some(destination) => destination,
 3946            None => {
 3947                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3948                    return;
 3949                }
 3950                let new_pane = self.add_pane(window, cx);
 3951                if self
 3952                    .center
 3953                    .split(&self.active_pane, &new_pane, action.direction)
 3954                    .log_err()
 3955                    .is_none()
 3956                {
 3957                    return;
 3958                };
 3959                new_pane
 3960            }
 3961        };
 3962
 3963        if action.clone {
 3964            if self
 3965                .active_pane
 3966                .read(cx)
 3967                .active_item()
 3968                .is_some_and(|item| item.can_split(cx))
 3969            {
 3970                clone_active_item(
 3971                    self.database_id(),
 3972                    &self.active_pane,
 3973                    &destination,
 3974                    action.focus,
 3975                    window,
 3976                    cx,
 3977                );
 3978                return;
 3979            }
 3980        }
 3981        move_active_item(
 3982            &self.active_pane,
 3983            &destination,
 3984            action.focus,
 3985            true,
 3986            window,
 3987            cx,
 3988        );
 3989    }
 3990
 3991    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3992        self.center.bounding_box_for_pane(pane)
 3993    }
 3994
 3995    pub fn find_pane_in_direction(
 3996        &mut self,
 3997        direction: SplitDirection,
 3998        cx: &App,
 3999    ) -> Option<Entity<Pane>> {
 4000        self.center
 4001            .find_pane_in_direction(&self.active_pane, direction, cx)
 4002            .cloned()
 4003    }
 4004
 4005    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4006        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4007            self.center.swap(&self.active_pane, &to);
 4008            cx.notify();
 4009        }
 4010    }
 4011
 4012    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4013        if self
 4014            .center
 4015            .move_to_border(&self.active_pane, direction)
 4016            .unwrap()
 4017        {
 4018            cx.notify();
 4019        }
 4020    }
 4021
 4022    pub fn resize_pane(
 4023        &mut self,
 4024        axis: gpui::Axis,
 4025        amount: Pixels,
 4026        window: &mut Window,
 4027        cx: &mut Context<Self>,
 4028    ) {
 4029        let docks = self.all_docks();
 4030        let active_dock = docks
 4031            .into_iter()
 4032            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4033
 4034        if let Some(dock) = active_dock {
 4035            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4036                return;
 4037            };
 4038            match dock.read(cx).position() {
 4039                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4040                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4041                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4042            }
 4043        } else {
 4044            self.center
 4045                .resize(&self.active_pane, axis, amount, &self.bounds);
 4046        }
 4047        cx.notify();
 4048    }
 4049
 4050    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4051        self.center.reset_pane_sizes();
 4052        cx.notify();
 4053    }
 4054
 4055    fn handle_pane_focused(
 4056        &mut self,
 4057        pane: Entity<Pane>,
 4058        window: &mut Window,
 4059        cx: &mut Context<Self>,
 4060    ) {
 4061        // This is explicitly hoisted out of the following check for pane identity as
 4062        // terminal panel panes are not registered as a center panes.
 4063        self.status_bar.update(cx, |status_bar, cx| {
 4064            status_bar.set_active_pane(&pane, window, cx);
 4065        });
 4066        if self.active_pane != pane {
 4067            self.set_active_pane(&pane, window, cx);
 4068        }
 4069
 4070        if self.last_active_center_pane.is_none() {
 4071            self.last_active_center_pane = Some(pane.downgrade());
 4072        }
 4073
 4074        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4075        if pane.read(cx).is_zoomed() {
 4076            self.zoomed = Some(pane.downgrade().into());
 4077        } else {
 4078            self.zoomed = None;
 4079        }
 4080        self.zoomed_position = None;
 4081        cx.emit(Event::ZoomChanged);
 4082        self.update_active_view_for_followers(window, cx);
 4083        pane.update(cx, |pane, _| {
 4084            pane.track_alternate_file_items();
 4085        });
 4086
 4087        cx.notify();
 4088    }
 4089
 4090    fn set_active_pane(
 4091        &mut self,
 4092        pane: &Entity<Pane>,
 4093        window: &mut Window,
 4094        cx: &mut Context<Self>,
 4095    ) {
 4096        self.active_pane = pane.clone();
 4097        self.active_item_path_changed(window, cx);
 4098        self.last_active_center_pane = Some(pane.downgrade());
 4099    }
 4100
 4101    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4102        self.update_active_view_for_followers(window, cx);
 4103    }
 4104
 4105    fn handle_pane_event(
 4106        &mut self,
 4107        pane: &Entity<Pane>,
 4108        event: &pane::Event,
 4109        window: &mut Window,
 4110        cx: &mut Context<Self>,
 4111    ) {
 4112        let mut serialize_workspace = true;
 4113        match event {
 4114            pane::Event::AddItem { item } => {
 4115                item.added_to_pane(self, pane.clone(), window, cx);
 4116                cx.emit(Event::ItemAdded {
 4117                    item: item.boxed_clone(),
 4118                });
 4119            }
 4120            pane::Event::Split {
 4121                direction,
 4122                clone_active_item,
 4123            } => {
 4124                if *clone_active_item {
 4125                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4126                        .detach();
 4127                } else {
 4128                    self.split_and_move(pane.clone(), *direction, window, cx);
 4129                }
 4130            }
 4131            pane::Event::JoinIntoNext => {
 4132                self.join_pane_into_next(pane.clone(), window, cx);
 4133            }
 4134            pane::Event::JoinAll => {
 4135                self.join_all_panes(window, cx);
 4136            }
 4137            pane::Event::Remove { focus_on_pane } => {
 4138                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4139            }
 4140            pane::Event::ActivateItem {
 4141                local,
 4142                focus_changed,
 4143            } => {
 4144                window.invalidate_character_coordinates();
 4145
 4146                pane.update(cx, |pane, _| {
 4147                    pane.track_alternate_file_items();
 4148                });
 4149                if *local {
 4150                    self.unfollow_in_pane(pane, window, cx);
 4151                }
 4152                serialize_workspace = *focus_changed || pane != self.active_pane();
 4153                if pane == self.active_pane() {
 4154                    self.active_item_path_changed(window, cx);
 4155                    self.update_active_view_for_followers(window, cx);
 4156                } else if *local {
 4157                    self.set_active_pane(pane, window, cx);
 4158                }
 4159            }
 4160            pane::Event::UserSavedItem { item, save_intent } => {
 4161                cx.emit(Event::UserSavedItem {
 4162                    pane: pane.downgrade(),
 4163                    item: item.boxed_clone(),
 4164                    save_intent: *save_intent,
 4165                });
 4166                serialize_workspace = false;
 4167            }
 4168            pane::Event::ChangeItemTitle => {
 4169                if *pane == self.active_pane {
 4170                    self.active_item_path_changed(window, cx);
 4171                }
 4172                serialize_workspace = false;
 4173            }
 4174            pane::Event::RemovedItem { item } => {
 4175                cx.emit(Event::ActiveItemChanged);
 4176                self.update_window_edited(window, cx);
 4177                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4178                    && entry.get().entity_id() == pane.entity_id()
 4179                {
 4180                    entry.remove();
 4181                }
 4182                cx.emit(Event::ItemRemoved {
 4183                    item_id: item.item_id(),
 4184                });
 4185            }
 4186            pane::Event::Focus => {
 4187                window.invalidate_character_coordinates();
 4188                self.handle_pane_focused(pane.clone(), window, cx);
 4189            }
 4190            pane::Event::ZoomIn => {
 4191                if *pane == self.active_pane {
 4192                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4193                    if pane.read(cx).has_focus(window, cx) {
 4194                        self.zoomed = Some(pane.downgrade().into());
 4195                        self.zoomed_position = None;
 4196                        cx.emit(Event::ZoomChanged);
 4197                    }
 4198                    cx.notify();
 4199                }
 4200            }
 4201            pane::Event::ZoomOut => {
 4202                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4203                if self.zoomed_position.is_none() {
 4204                    self.zoomed = None;
 4205                    cx.emit(Event::ZoomChanged);
 4206                }
 4207                cx.notify();
 4208            }
 4209            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4210        }
 4211
 4212        if serialize_workspace {
 4213            self.serialize_workspace(window, cx);
 4214        }
 4215    }
 4216
 4217    pub fn unfollow_in_pane(
 4218        &mut self,
 4219        pane: &Entity<Pane>,
 4220        window: &mut Window,
 4221        cx: &mut Context<Workspace>,
 4222    ) -> Option<CollaboratorId> {
 4223        let leader_id = self.leader_for_pane(pane)?;
 4224        self.unfollow(leader_id, window, cx);
 4225        Some(leader_id)
 4226    }
 4227
 4228    pub fn split_pane(
 4229        &mut self,
 4230        pane_to_split: Entity<Pane>,
 4231        split_direction: SplitDirection,
 4232        window: &mut Window,
 4233        cx: &mut Context<Self>,
 4234    ) -> Entity<Pane> {
 4235        let new_pane = self.add_pane(window, cx);
 4236        self.center
 4237            .split(&pane_to_split, &new_pane, split_direction)
 4238            .unwrap();
 4239        cx.notify();
 4240        new_pane
 4241    }
 4242
 4243    pub fn split_and_move(
 4244        &mut self,
 4245        pane: Entity<Pane>,
 4246        direction: SplitDirection,
 4247        window: &mut Window,
 4248        cx: &mut Context<Self>,
 4249    ) {
 4250        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4251            return;
 4252        };
 4253        let new_pane = self.add_pane(window, cx);
 4254        new_pane.update(cx, |pane, cx| {
 4255            pane.add_item(item, true, true, None, window, cx)
 4256        });
 4257        self.center.split(&pane, &new_pane, direction).unwrap();
 4258        cx.notify();
 4259    }
 4260
 4261    pub fn split_and_clone(
 4262        &mut self,
 4263        pane: Entity<Pane>,
 4264        direction: SplitDirection,
 4265        window: &mut Window,
 4266        cx: &mut Context<Self>,
 4267    ) -> Task<Option<Entity<Pane>>> {
 4268        let Some(item) = pane.read(cx).active_item() else {
 4269            return Task::ready(None);
 4270        };
 4271        if !item.can_split(cx) {
 4272            return Task::ready(None);
 4273        }
 4274        let task = item.clone_on_split(self.database_id(), window, cx);
 4275        cx.spawn_in(window, async move |this, cx| {
 4276            if let Some(clone) = task.await {
 4277                this.update_in(cx, |this, window, cx| {
 4278                    let new_pane = this.add_pane(window, cx);
 4279                    new_pane.update(cx, |pane, cx| {
 4280                        pane.add_item(clone, true, true, None, window, cx)
 4281                    });
 4282                    this.center.split(&pane, &new_pane, direction).unwrap();
 4283                    cx.notify();
 4284                    new_pane
 4285                })
 4286                .ok()
 4287            } else {
 4288                None
 4289            }
 4290        })
 4291    }
 4292
 4293    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4294        let active_item = self.active_pane.read(cx).active_item();
 4295        for pane in &self.panes {
 4296            join_pane_into_active(&self.active_pane, pane, window, cx);
 4297        }
 4298        if let Some(active_item) = active_item {
 4299            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4300        }
 4301        cx.notify();
 4302    }
 4303
 4304    pub fn join_pane_into_next(
 4305        &mut self,
 4306        pane: Entity<Pane>,
 4307        window: &mut Window,
 4308        cx: &mut Context<Self>,
 4309    ) {
 4310        let next_pane = self
 4311            .find_pane_in_direction(SplitDirection::Right, cx)
 4312            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4313            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4314            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4315        let Some(next_pane) = next_pane else {
 4316            return;
 4317        };
 4318        move_all_items(&pane, &next_pane, window, cx);
 4319        cx.notify();
 4320    }
 4321
 4322    fn remove_pane(
 4323        &mut self,
 4324        pane: Entity<Pane>,
 4325        focus_on: Option<Entity<Pane>>,
 4326        window: &mut Window,
 4327        cx: &mut Context<Self>,
 4328    ) {
 4329        if self.center.remove(&pane).unwrap() {
 4330            self.force_remove_pane(&pane, &focus_on, window, cx);
 4331            self.unfollow_in_pane(&pane, window, cx);
 4332            self.last_leaders_by_pane.remove(&pane.downgrade());
 4333            for removed_item in pane.read(cx).items() {
 4334                self.panes_by_item.remove(&removed_item.item_id());
 4335            }
 4336
 4337            cx.notify();
 4338        } else {
 4339            self.active_item_path_changed(window, cx);
 4340        }
 4341        cx.emit(Event::PaneRemoved);
 4342    }
 4343
 4344    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4345        &mut self.panes
 4346    }
 4347
 4348    pub fn panes(&self) -> &[Entity<Pane>] {
 4349        &self.panes
 4350    }
 4351
 4352    pub fn active_pane(&self) -> &Entity<Pane> {
 4353        &self.active_pane
 4354    }
 4355
 4356    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4357        for dock in self.all_docks() {
 4358            if dock.focus_handle(cx).contains_focused(window, cx)
 4359                && let Some(pane) = dock
 4360                    .read(cx)
 4361                    .active_panel()
 4362                    .and_then(|panel| panel.pane(cx))
 4363            {
 4364                return pane;
 4365            }
 4366        }
 4367        self.active_pane().clone()
 4368    }
 4369
 4370    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4371        self.find_pane_in_direction(SplitDirection::Right, cx)
 4372            .unwrap_or_else(|| {
 4373                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4374            })
 4375    }
 4376
 4377    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4378        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4379        weak_pane.upgrade()
 4380    }
 4381
 4382    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4383        self.follower_states.retain(|leader_id, state| {
 4384            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4385                for item in state.items_by_leader_view_id.values() {
 4386                    item.view.set_leader_id(None, window, cx);
 4387                }
 4388                false
 4389            } else {
 4390                true
 4391            }
 4392        });
 4393        cx.notify();
 4394    }
 4395
 4396    pub fn start_following(
 4397        &mut self,
 4398        leader_id: impl Into<CollaboratorId>,
 4399        window: &mut Window,
 4400        cx: &mut Context<Self>,
 4401    ) -> Option<Task<Result<()>>> {
 4402        let leader_id = leader_id.into();
 4403        let pane = self.active_pane().clone();
 4404
 4405        self.last_leaders_by_pane
 4406            .insert(pane.downgrade(), leader_id);
 4407        self.unfollow(leader_id, window, cx);
 4408        self.unfollow_in_pane(&pane, window, cx);
 4409        self.follower_states.insert(
 4410            leader_id,
 4411            FollowerState {
 4412                center_pane: pane.clone(),
 4413                dock_pane: None,
 4414                active_view_id: None,
 4415                items_by_leader_view_id: Default::default(),
 4416            },
 4417        );
 4418        cx.notify();
 4419
 4420        match leader_id {
 4421            CollaboratorId::PeerId(leader_peer_id) => {
 4422                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4423                let project_id = self.project.read(cx).remote_id();
 4424                let request = self.app_state.client.request(proto::Follow {
 4425                    room_id,
 4426                    project_id,
 4427                    leader_id: Some(leader_peer_id),
 4428                });
 4429
 4430                Some(cx.spawn_in(window, async move |this, cx| {
 4431                    let response = request.await?;
 4432                    this.update(cx, |this, _| {
 4433                        let state = this
 4434                            .follower_states
 4435                            .get_mut(&leader_id)
 4436                            .context("following interrupted")?;
 4437                        state.active_view_id = response
 4438                            .active_view
 4439                            .as_ref()
 4440                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4441                        anyhow::Ok(())
 4442                    })??;
 4443                    if let Some(view) = response.active_view {
 4444                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4445                    }
 4446                    this.update_in(cx, |this, window, cx| {
 4447                        this.leader_updated(leader_id, window, cx)
 4448                    })?;
 4449                    Ok(())
 4450                }))
 4451            }
 4452            CollaboratorId::Agent => {
 4453                self.leader_updated(leader_id, window, cx)?;
 4454                Some(Task::ready(Ok(())))
 4455            }
 4456        }
 4457    }
 4458
 4459    pub fn follow_next_collaborator(
 4460        &mut self,
 4461        _: &FollowNextCollaborator,
 4462        window: &mut Window,
 4463        cx: &mut Context<Self>,
 4464    ) {
 4465        let collaborators = self.project.read(cx).collaborators();
 4466        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4467            let mut collaborators = collaborators.keys().copied();
 4468            for peer_id in collaborators.by_ref() {
 4469                if CollaboratorId::PeerId(peer_id) == leader_id {
 4470                    break;
 4471                }
 4472            }
 4473            collaborators.next().map(CollaboratorId::PeerId)
 4474        } else if let Some(last_leader_id) =
 4475            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4476        {
 4477            match last_leader_id {
 4478                CollaboratorId::PeerId(peer_id) => {
 4479                    if collaborators.contains_key(peer_id) {
 4480                        Some(*last_leader_id)
 4481                    } else {
 4482                        None
 4483                    }
 4484                }
 4485                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4486            }
 4487        } else {
 4488            None
 4489        };
 4490
 4491        let pane = self.active_pane.clone();
 4492        let Some(leader_id) = next_leader_id.or_else(|| {
 4493            Some(CollaboratorId::PeerId(
 4494                collaborators.keys().copied().next()?,
 4495            ))
 4496        }) else {
 4497            return;
 4498        };
 4499        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4500            return;
 4501        }
 4502        if let Some(task) = self.start_following(leader_id, window, cx) {
 4503            task.detach_and_log_err(cx)
 4504        }
 4505    }
 4506
 4507    pub fn follow(
 4508        &mut self,
 4509        leader_id: impl Into<CollaboratorId>,
 4510        window: &mut Window,
 4511        cx: &mut Context<Self>,
 4512    ) {
 4513        let leader_id = leader_id.into();
 4514
 4515        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4516            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4517                return;
 4518            };
 4519            let room = room.read(cx);
 4520            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4521                return;
 4522            };
 4523
 4524            let project = self.project.read(cx);
 4525
 4526            let other_project_id = match remote_participant.location {
 4527                call::ParticipantLocation::External => None,
 4528                call::ParticipantLocation::UnsharedProject => None,
 4529                call::ParticipantLocation::SharedProject { project_id } => {
 4530                    if Some(project_id) == project.remote_id() {
 4531                        None
 4532                    } else {
 4533                        Some(project_id)
 4534                    }
 4535                }
 4536            };
 4537
 4538            // if they are active in another project, follow there.
 4539            if let Some(project_id) = other_project_id {
 4540                let app_state = self.app_state.clone();
 4541                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4542                    .detach_and_log_err(cx);
 4543            }
 4544        }
 4545
 4546        // if you're already following, find the right pane and focus it.
 4547        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4548            window.focus(&follower_state.pane().focus_handle(cx));
 4549
 4550            return;
 4551        }
 4552
 4553        // Otherwise, follow.
 4554        if let Some(task) = self.start_following(leader_id, window, cx) {
 4555            task.detach_and_log_err(cx)
 4556        }
 4557    }
 4558
 4559    pub fn unfollow(
 4560        &mut self,
 4561        leader_id: impl Into<CollaboratorId>,
 4562        window: &mut Window,
 4563        cx: &mut Context<Self>,
 4564    ) -> Option<()> {
 4565        cx.notify();
 4566
 4567        let leader_id = leader_id.into();
 4568        let state = self.follower_states.remove(&leader_id)?;
 4569        for (_, item) in state.items_by_leader_view_id {
 4570            item.view.set_leader_id(None, window, cx);
 4571        }
 4572
 4573        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4574            let project_id = self.project.read(cx).remote_id();
 4575            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4576            self.app_state
 4577                .client
 4578                .send(proto::Unfollow {
 4579                    room_id,
 4580                    project_id,
 4581                    leader_id: Some(leader_peer_id),
 4582                })
 4583                .log_err();
 4584        }
 4585
 4586        Some(())
 4587    }
 4588
 4589    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4590        self.follower_states.contains_key(&id.into())
 4591    }
 4592
 4593    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4594        cx.emit(Event::ActiveItemChanged);
 4595        let active_entry = self.active_project_path(cx);
 4596        self.project.update(cx, |project, cx| {
 4597            project.set_active_path(active_entry.clone(), cx)
 4598        });
 4599
 4600        if let Some(project_path) = &active_entry {
 4601            let git_store_entity = self.project.read(cx).git_store().clone();
 4602            git_store_entity.update(cx, |git_store, cx| {
 4603                git_store.set_active_repo_for_path(project_path, cx);
 4604            });
 4605        }
 4606
 4607        self.update_window_title(window, cx);
 4608    }
 4609
 4610    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4611        let project = self.project().read(cx);
 4612        let mut title = String::new();
 4613
 4614        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4615            let name = {
 4616                let settings_location = SettingsLocation {
 4617                    worktree_id: worktree.read(cx).id(),
 4618                    path: RelPath::empty(),
 4619                };
 4620
 4621                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4622                match &settings.project_name {
 4623                    Some(name) => name.as_str(),
 4624                    None => worktree.read(cx).root_name_str(),
 4625                }
 4626            };
 4627            if i > 0 {
 4628                title.push_str(", ");
 4629            }
 4630            title.push_str(name);
 4631        }
 4632
 4633        if title.is_empty() {
 4634            title = "empty project".to_string();
 4635        }
 4636
 4637        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4638            let filename = path.path.file_name().or_else(|| {
 4639                Some(
 4640                    project
 4641                        .worktree_for_id(path.worktree_id, cx)?
 4642                        .read(cx)
 4643                        .root_name_str(),
 4644                )
 4645            });
 4646
 4647            if let Some(filename) = filename {
 4648                title.push_str("");
 4649                title.push_str(filename.as_ref());
 4650            }
 4651        }
 4652
 4653        if project.is_via_collab() {
 4654            title.push_str("");
 4655        } else if project.is_shared() {
 4656            title.push_str("");
 4657        }
 4658
 4659        if let Some(last_title) = self.last_window_title.as_ref()
 4660            && &title == last_title
 4661        {
 4662            return;
 4663        }
 4664        window.set_window_title(&title);
 4665        SystemWindowTabController::update_tab_title(
 4666            cx,
 4667            window.window_handle().window_id(),
 4668            SharedString::from(&title),
 4669        );
 4670        self.last_window_title = Some(title);
 4671    }
 4672
 4673    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4674        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4675        if is_edited != self.window_edited {
 4676            self.window_edited = is_edited;
 4677            window.set_window_edited(self.window_edited)
 4678        }
 4679    }
 4680
 4681    fn update_item_dirty_state(
 4682        &mut self,
 4683        item: &dyn ItemHandle,
 4684        window: &mut Window,
 4685        cx: &mut App,
 4686    ) {
 4687        let is_dirty = item.is_dirty(cx);
 4688        let item_id = item.item_id();
 4689        let was_dirty = self.dirty_items.contains_key(&item_id);
 4690        if is_dirty == was_dirty {
 4691            return;
 4692        }
 4693        if was_dirty {
 4694            self.dirty_items.remove(&item_id);
 4695            self.update_window_edited(window, cx);
 4696            return;
 4697        }
 4698        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4699            let s = item.on_release(
 4700                cx,
 4701                Box::new(move |cx| {
 4702                    window_handle
 4703                        .update(cx, |this, window, cx| {
 4704                            this.dirty_items.remove(&item_id);
 4705                            this.update_window_edited(window, cx)
 4706                        })
 4707                        .ok();
 4708                }),
 4709            );
 4710            self.dirty_items.insert(item_id, s);
 4711            self.update_window_edited(window, cx);
 4712        }
 4713    }
 4714
 4715    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4716        if self.notifications.is_empty() {
 4717            None
 4718        } else {
 4719            Some(
 4720                div()
 4721                    .absolute()
 4722                    .right_3()
 4723                    .bottom_3()
 4724                    .w_112()
 4725                    .h_full()
 4726                    .flex()
 4727                    .flex_col()
 4728                    .justify_end()
 4729                    .gap_2()
 4730                    .children(
 4731                        self.notifications
 4732                            .iter()
 4733                            .map(|(_, notification)| notification.clone().into_any()),
 4734                    ),
 4735            )
 4736        }
 4737    }
 4738
 4739    // RPC handlers
 4740
 4741    fn active_view_for_follower(
 4742        &self,
 4743        follower_project_id: Option<u64>,
 4744        window: &mut Window,
 4745        cx: &mut Context<Self>,
 4746    ) -> Option<proto::View> {
 4747        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4748        let item = item?;
 4749        let leader_id = self
 4750            .pane_for(&*item)
 4751            .and_then(|pane| self.leader_for_pane(&pane));
 4752        let leader_peer_id = match leader_id {
 4753            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4754            Some(CollaboratorId::Agent) | None => None,
 4755        };
 4756
 4757        let item_handle = item.to_followable_item_handle(cx)?;
 4758        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4759        let variant = item_handle.to_state_proto(window, cx)?;
 4760
 4761        if item_handle.is_project_item(window, cx)
 4762            && (follower_project_id.is_none()
 4763                || follower_project_id != self.project.read(cx).remote_id())
 4764        {
 4765            return None;
 4766        }
 4767
 4768        Some(proto::View {
 4769            id: id.to_proto(),
 4770            leader_id: leader_peer_id,
 4771            variant: Some(variant),
 4772            panel_id: panel_id.map(|id| id as i32),
 4773        })
 4774    }
 4775
 4776    fn handle_follow(
 4777        &mut self,
 4778        follower_project_id: Option<u64>,
 4779        window: &mut Window,
 4780        cx: &mut Context<Self>,
 4781    ) -> proto::FollowResponse {
 4782        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4783
 4784        cx.notify();
 4785        proto::FollowResponse {
 4786            // TODO: Remove after version 0.145.x stabilizes.
 4787            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4788            views: active_view.iter().cloned().collect(),
 4789            active_view,
 4790        }
 4791    }
 4792
 4793    fn handle_update_followers(
 4794        &mut self,
 4795        leader_id: PeerId,
 4796        message: proto::UpdateFollowers,
 4797        _window: &mut Window,
 4798        _cx: &mut Context<Self>,
 4799    ) {
 4800        self.leader_updates_tx
 4801            .unbounded_send((leader_id, message))
 4802            .ok();
 4803    }
 4804
 4805    async fn process_leader_update(
 4806        this: &WeakEntity<Self>,
 4807        leader_id: PeerId,
 4808        update: proto::UpdateFollowers,
 4809        cx: &mut AsyncWindowContext,
 4810    ) -> Result<()> {
 4811        match update.variant.context("invalid update")? {
 4812            proto::update_followers::Variant::CreateView(view) => {
 4813                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4814                let should_add_view = this.update(cx, |this, _| {
 4815                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4816                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4817                    } else {
 4818                        anyhow::Ok(false)
 4819                    }
 4820                })??;
 4821
 4822                if should_add_view {
 4823                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4824                }
 4825            }
 4826            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4827                let should_add_view = this.update(cx, |this, _| {
 4828                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4829                        state.active_view_id = update_active_view
 4830                            .view
 4831                            .as_ref()
 4832                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4833
 4834                        if state.active_view_id.is_some_and(|view_id| {
 4835                            !state.items_by_leader_view_id.contains_key(&view_id)
 4836                        }) {
 4837                            anyhow::Ok(true)
 4838                        } else {
 4839                            anyhow::Ok(false)
 4840                        }
 4841                    } else {
 4842                        anyhow::Ok(false)
 4843                    }
 4844                })??;
 4845
 4846                if should_add_view && let Some(view) = update_active_view.view {
 4847                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4848                }
 4849            }
 4850            proto::update_followers::Variant::UpdateView(update_view) => {
 4851                let variant = update_view.variant.context("missing update view variant")?;
 4852                let id = update_view.id.context("missing update view id")?;
 4853                let mut tasks = Vec::new();
 4854                this.update_in(cx, |this, window, cx| {
 4855                    let project = this.project.clone();
 4856                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4857                        let view_id = ViewId::from_proto(id.clone())?;
 4858                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4859                            tasks.push(item.view.apply_update_proto(
 4860                                &project,
 4861                                variant.clone(),
 4862                                window,
 4863                                cx,
 4864                            ));
 4865                        }
 4866                    }
 4867                    anyhow::Ok(())
 4868                })??;
 4869                try_join_all(tasks).await.log_err();
 4870            }
 4871        }
 4872        this.update_in(cx, |this, window, cx| {
 4873            this.leader_updated(leader_id, window, cx)
 4874        })?;
 4875        Ok(())
 4876    }
 4877
 4878    async fn add_view_from_leader(
 4879        this: WeakEntity<Self>,
 4880        leader_id: PeerId,
 4881        view: &proto::View,
 4882        cx: &mut AsyncWindowContext,
 4883    ) -> Result<()> {
 4884        let this = this.upgrade().context("workspace dropped")?;
 4885
 4886        let Some(id) = view.id.clone() else {
 4887            anyhow::bail!("no id for view");
 4888        };
 4889        let id = ViewId::from_proto(id)?;
 4890        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4891
 4892        let pane = this.update(cx, |this, _cx| {
 4893            let state = this
 4894                .follower_states
 4895                .get(&leader_id.into())
 4896                .context("stopped following")?;
 4897            anyhow::Ok(state.pane().clone())
 4898        })??;
 4899        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4900            let client = this.read(cx).client().clone();
 4901            pane.items().find_map(|item| {
 4902                let item = item.to_followable_item_handle(cx)?;
 4903                if item.remote_id(&client, window, cx) == Some(id) {
 4904                    Some(item)
 4905                } else {
 4906                    None
 4907                }
 4908            })
 4909        })?;
 4910        let item = if let Some(existing_item) = existing_item {
 4911            existing_item
 4912        } else {
 4913            let variant = view.variant.clone();
 4914            anyhow::ensure!(variant.is_some(), "missing view variant");
 4915
 4916            let task = cx.update(|window, cx| {
 4917                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4918            })?;
 4919
 4920            let Some(task) = task else {
 4921                anyhow::bail!(
 4922                    "failed to construct view from leader (maybe from a different version of zed?)"
 4923                );
 4924            };
 4925
 4926            let mut new_item = task.await?;
 4927            pane.update_in(cx, |pane, window, cx| {
 4928                let mut item_to_remove = None;
 4929                for (ix, item) in pane.items().enumerate() {
 4930                    if let Some(item) = item.to_followable_item_handle(cx) {
 4931                        match new_item.dedup(item.as_ref(), window, cx) {
 4932                            Some(item::Dedup::KeepExisting) => {
 4933                                new_item =
 4934                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4935                                break;
 4936                            }
 4937                            Some(item::Dedup::ReplaceExisting) => {
 4938                                item_to_remove = Some((ix, item.item_id()));
 4939                                break;
 4940                            }
 4941                            None => {}
 4942                        }
 4943                    }
 4944                }
 4945
 4946                if let Some((ix, id)) = item_to_remove {
 4947                    pane.remove_item(id, false, false, window, cx);
 4948                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4949                }
 4950            })?;
 4951
 4952            new_item
 4953        };
 4954
 4955        this.update_in(cx, |this, window, cx| {
 4956            let state = this.follower_states.get_mut(&leader_id.into())?;
 4957            item.set_leader_id(Some(leader_id.into()), window, cx);
 4958            state.items_by_leader_view_id.insert(
 4959                id,
 4960                FollowerView {
 4961                    view: item,
 4962                    location: panel_id,
 4963                },
 4964            );
 4965
 4966            Some(())
 4967        })?;
 4968
 4969        Ok(())
 4970    }
 4971
 4972    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4973        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4974            return;
 4975        };
 4976
 4977        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4978            let buffer_entity_id = agent_location.buffer.entity_id();
 4979            let view_id = ViewId {
 4980                creator: CollaboratorId::Agent,
 4981                id: buffer_entity_id.as_u64(),
 4982            };
 4983            follower_state.active_view_id = Some(view_id);
 4984
 4985            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4986                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4987                hash_map::Entry::Vacant(entry) => {
 4988                    let existing_view =
 4989                        follower_state
 4990                            .center_pane
 4991                            .read(cx)
 4992                            .items()
 4993                            .find_map(|item| {
 4994                                let item = item.to_followable_item_handle(cx)?;
 4995                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 4996                                    && item.project_item_model_ids(cx).as_slice()
 4997                                        == [buffer_entity_id]
 4998                                {
 4999                                    Some(item)
 5000                                } else {
 5001                                    None
 5002                                }
 5003                            });
 5004                    let view = existing_view.or_else(|| {
 5005                        agent_location.buffer.upgrade().and_then(|buffer| {
 5006                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5007                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5008                            })?
 5009                            .to_followable_item_handle(cx)
 5010                        })
 5011                    });
 5012
 5013                    view.map(|view| {
 5014                        entry.insert(FollowerView {
 5015                            view,
 5016                            location: None,
 5017                        })
 5018                    })
 5019                }
 5020            };
 5021
 5022            if let Some(item) = item {
 5023                item.view
 5024                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5025                item.view
 5026                    .update_agent_location(agent_location.position, window, cx);
 5027            }
 5028        } else {
 5029            follower_state.active_view_id = None;
 5030        }
 5031
 5032        self.leader_updated(CollaboratorId::Agent, window, cx);
 5033    }
 5034
 5035    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5036        let mut is_project_item = true;
 5037        let mut update = proto::UpdateActiveView::default();
 5038        if window.is_window_active() {
 5039            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5040
 5041            if let Some(item) = active_item
 5042                && item.item_focus_handle(cx).contains_focused(window, cx)
 5043            {
 5044                let leader_id = self
 5045                    .pane_for(&*item)
 5046                    .and_then(|pane| self.leader_for_pane(&pane));
 5047                let leader_peer_id = match leader_id {
 5048                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5049                    Some(CollaboratorId::Agent) | None => None,
 5050                };
 5051
 5052                if let Some(item) = item.to_followable_item_handle(cx) {
 5053                    let id = item
 5054                        .remote_id(&self.app_state.client, window, cx)
 5055                        .map(|id| id.to_proto());
 5056
 5057                    if let Some(id) = id
 5058                        && let Some(variant) = item.to_state_proto(window, cx)
 5059                    {
 5060                        let view = Some(proto::View {
 5061                            id: id.clone(),
 5062                            leader_id: leader_peer_id,
 5063                            variant: Some(variant),
 5064                            panel_id: panel_id.map(|id| id as i32),
 5065                        });
 5066
 5067                        is_project_item = item.is_project_item(window, cx);
 5068                        update = proto::UpdateActiveView {
 5069                            view,
 5070                            // TODO: Remove after version 0.145.x stabilizes.
 5071                            id,
 5072                            leader_id: leader_peer_id,
 5073                        };
 5074                    };
 5075                }
 5076            }
 5077        }
 5078
 5079        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5080        if active_view_id != self.last_active_view_id.as_ref() {
 5081            self.last_active_view_id = active_view_id.cloned();
 5082            self.update_followers(
 5083                is_project_item,
 5084                proto::update_followers::Variant::UpdateActiveView(update),
 5085                window,
 5086                cx,
 5087            );
 5088        }
 5089    }
 5090
 5091    fn active_item_for_followers(
 5092        &self,
 5093        window: &mut Window,
 5094        cx: &mut App,
 5095    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5096        let mut active_item = None;
 5097        let mut panel_id = None;
 5098        for dock in self.all_docks() {
 5099            if dock.focus_handle(cx).contains_focused(window, cx)
 5100                && let Some(panel) = dock.read(cx).active_panel()
 5101                && let Some(pane) = panel.pane(cx)
 5102                && let Some(item) = pane.read(cx).active_item()
 5103            {
 5104                active_item = Some(item);
 5105                panel_id = panel.remote_id();
 5106                break;
 5107            }
 5108        }
 5109
 5110        if active_item.is_none() {
 5111            active_item = self.active_pane().read(cx).active_item();
 5112        }
 5113        (active_item, panel_id)
 5114    }
 5115
 5116    fn update_followers(
 5117        &self,
 5118        project_only: bool,
 5119        update: proto::update_followers::Variant,
 5120        _: &mut Window,
 5121        cx: &mut App,
 5122    ) -> Option<()> {
 5123        // If this update only applies to for followers in the current project,
 5124        // then skip it unless this project is shared. If it applies to all
 5125        // followers, regardless of project, then set `project_id` to none,
 5126        // indicating that it goes to all followers.
 5127        let project_id = if project_only {
 5128            Some(self.project.read(cx).remote_id()?)
 5129        } else {
 5130            None
 5131        };
 5132        self.app_state().workspace_store.update(cx, |store, cx| {
 5133            store.update_followers(project_id, update, cx)
 5134        })
 5135    }
 5136
 5137    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5138        self.follower_states.iter().find_map(|(leader_id, state)| {
 5139            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5140                Some(*leader_id)
 5141            } else {
 5142                None
 5143            }
 5144        })
 5145    }
 5146
 5147    fn leader_updated(
 5148        &mut self,
 5149        leader_id: impl Into<CollaboratorId>,
 5150        window: &mut Window,
 5151        cx: &mut Context<Self>,
 5152    ) -> Option<Box<dyn ItemHandle>> {
 5153        cx.notify();
 5154
 5155        let leader_id = leader_id.into();
 5156        let (panel_id, item) = match leader_id {
 5157            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5158            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5159        };
 5160
 5161        let state = self.follower_states.get(&leader_id)?;
 5162        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5163        let pane;
 5164        if let Some(panel_id) = panel_id {
 5165            pane = self
 5166                .activate_panel_for_proto_id(panel_id, window, cx)?
 5167                .pane(cx)?;
 5168            let state = self.follower_states.get_mut(&leader_id)?;
 5169            state.dock_pane = Some(pane.clone());
 5170        } else {
 5171            pane = state.center_pane.clone();
 5172            let state = self.follower_states.get_mut(&leader_id)?;
 5173            if let Some(dock_pane) = state.dock_pane.take() {
 5174                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5175            }
 5176        }
 5177
 5178        pane.update(cx, |pane, cx| {
 5179            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5180            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5181                pane.activate_item(index, false, false, window, cx);
 5182            } else {
 5183                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5184            }
 5185
 5186            if focus_active_item {
 5187                pane.focus_active_item(window, cx)
 5188            }
 5189        });
 5190
 5191        Some(item)
 5192    }
 5193
 5194    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5195        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5196        let active_view_id = state.active_view_id?;
 5197        Some(
 5198            state
 5199                .items_by_leader_view_id
 5200                .get(&active_view_id)?
 5201                .view
 5202                .boxed_clone(),
 5203        )
 5204    }
 5205
 5206    fn active_item_for_peer(
 5207        &self,
 5208        peer_id: PeerId,
 5209        window: &mut Window,
 5210        cx: &mut Context<Self>,
 5211    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5212        let call = self.active_call()?;
 5213        let room = call.read(cx).room()?.read(cx);
 5214        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5215        let leader_in_this_app;
 5216        let leader_in_this_project;
 5217        match participant.location {
 5218            call::ParticipantLocation::SharedProject { project_id } => {
 5219                leader_in_this_app = true;
 5220                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5221            }
 5222            call::ParticipantLocation::UnsharedProject => {
 5223                leader_in_this_app = true;
 5224                leader_in_this_project = false;
 5225            }
 5226            call::ParticipantLocation::External => {
 5227                leader_in_this_app = false;
 5228                leader_in_this_project = false;
 5229            }
 5230        };
 5231        let state = self.follower_states.get(&peer_id.into())?;
 5232        let mut item_to_activate = None;
 5233        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5234            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5235                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5236            {
 5237                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5238            }
 5239        } else if let Some(shared_screen) =
 5240            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5241        {
 5242            item_to_activate = Some((None, Box::new(shared_screen)));
 5243        }
 5244        item_to_activate
 5245    }
 5246
 5247    fn shared_screen_for_peer(
 5248        &self,
 5249        peer_id: PeerId,
 5250        pane: &Entity<Pane>,
 5251        window: &mut Window,
 5252        cx: &mut App,
 5253    ) -> Option<Entity<SharedScreen>> {
 5254        let call = self.active_call()?;
 5255        let room = call.read(cx).room()?.clone();
 5256        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5257        let track = participant.video_tracks.values().next()?.clone();
 5258        let user = participant.user.clone();
 5259
 5260        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5261            if item.read(cx).peer_id == peer_id {
 5262                return Some(item);
 5263            }
 5264        }
 5265
 5266        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5267    }
 5268
 5269    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5270        if window.is_window_active() {
 5271            self.update_active_view_for_followers(window, cx);
 5272
 5273            if let Some(database_id) = self.database_id {
 5274                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5275                    .detach();
 5276            }
 5277        } else {
 5278            for pane in &self.panes {
 5279                pane.update(cx, |pane, cx| {
 5280                    if let Some(item) = pane.active_item() {
 5281                        item.workspace_deactivated(window, cx);
 5282                    }
 5283                    for item in pane.items() {
 5284                        if matches!(
 5285                            item.workspace_settings(cx).autosave,
 5286                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5287                        ) {
 5288                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5289                                .detach_and_log_err(cx);
 5290                        }
 5291                    }
 5292                });
 5293            }
 5294        }
 5295    }
 5296
 5297    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5298        self.active_call.as_ref().map(|(call, _)| call)
 5299    }
 5300
 5301    fn on_active_call_event(
 5302        &mut self,
 5303        _: &Entity<ActiveCall>,
 5304        event: &call::room::Event,
 5305        window: &mut Window,
 5306        cx: &mut Context<Self>,
 5307    ) {
 5308        match event {
 5309            call::room::Event::ParticipantLocationChanged { participant_id }
 5310            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5311                self.leader_updated(participant_id, window, cx);
 5312            }
 5313            _ => {}
 5314        }
 5315    }
 5316
 5317    pub fn database_id(&self) -> Option<WorkspaceId> {
 5318        self.database_id
 5319    }
 5320
 5321    pub fn session_id(&self) -> Option<String> {
 5322        self.session_id.clone()
 5323    }
 5324
 5325    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5326        let project = self.project().read(cx);
 5327        project
 5328            .visible_worktrees(cx)
 5329            .map(|worktree| worktree.read(cx).abs_path())
 5330            .collect::<Vec<_>>()
 5331    }
 5332
 5333    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5334        match member {
 5335            Member::Axis(PaneAxis { members, .. }) => {
 5336                for child in members.iter() {
 5337                    self.remove_panes(child.clone(), window, cx)
 5338                }
 5339            }
 5340            Member::Pane(pane) => {
 5341                self.force_remove_pane(&pane, &None, window, cx);
 5342            }
 5343        }
 5344    }
 5345
 5346    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5347        self.session_id.take();
 5348        self.serialize_workspace_internal(window, cx)
 5349    }
 5350
 5351    fn force_remove_pane(
 5352        &mut self,
 5353        pane: &Entity<Pane>,
 5354        focus_on: &Option<Entity<Pane>>,
 5355        window: &mut Window,
 5356        cx: &mut Context<Workspace>,
 5357    ) {
 5358        self.panes.retain(|p| p != pane);
 5359        if let Some(focus_on) = focus_on {
 5360            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5361        } else if self.active_pane() == pane {
 5362            self.panes
 5363                .last()
 5364                .unwrap()
 5365                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5366        }
 5367        if self.last_active_center_pane == Some(pane.downgrade()) {
 5368            self.last_active_center_pane = None;
 5369        }
 5370        cx.notify();
 5371    }
 5372
 5373    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5374        if self._schedule_serialize_workspace.is_none() {
 5375            self._schedule_serialize_workspace =
 5376                Some(cx.spawn_in(window, async move |this, cx| {
 5377                    cx.background_executor()
 5378                        .timer(SERIALIZATION_THROTTLE_TIME)
 5379                        .await;
 5380                    this.update_in(cx, |this, window, cx| {
 5381                        this.serialize_workspace_internal(window, cx).detach();
 5382                        this._schedule_serialize_workspace.take();
 5383                    })
 5384                    .log_err();
 5385                }));
 5386        }
 5387    }
 5388
 5389    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5390        let Some(database_id) = self.database_id() else {
 5391            return Task::ready(());
 5392        };
 5393
 5394        fn serialize_pane_handle(
 5395            pane_handle: &Entity<Pane>,
 5396            window: &mut Window,
 5397            cx: &mut App,
 5398        ) -> SerializedPane {
 5399            let (items, active, pinned_count) = {
 5400                let pane = pane_handle.read(cx);
 5401                let active_item_id = pane.active_item().map(|item| item.item_id());
 5402                (
 5403                    pane.items()
 5404                        .filter_map(|handle| {
 5405                            let handle = handle.to_serializable_item_handle(cx)?;
 5406
 5407                            Some(SerializedItem {
 5408                                kind: Arc::from(handle.serialized_item_kind()),
 5409                                item_id: handle.item_id().as_u64(),
 5410                                active: Some(handle.item_id()) == active_item_id,
 5411                                preview: pane.is_active_preview_item(handle.item_id()),
 5412                            })
 5413                        })
 5414                        .collect::<Vec<_>>(),
 5415                    pane.has_focus(window, cx),
 5416                    pane.pinned_count(),
 5417                )
 5418            };
 5419
 5420            SerializedPane::new(items, active, pinned_count)
 5421        }
 5422
 5423        fn build_serialized_pane_group(
 5424            pane_group: &Member,
 5425            window: &mut Window,
 5426            cx: &mut App,
 5427        ) -> SerializedPaneGroup {
 5428            match pane_group {
 5429                Member::Axis(PaneAxis {
 5430                    axis,
 5431                    members,
 5432                    flexes,
 5433                    bounding_boxes: _,
 5434                }) => SerializedPaneGroup::Group {
 5435                    axis: SerializedAxis(*axis),
 5436                    children: members
 5437                        .iter()
 5438                        .map(|member| build_serialized_pane_group(member, window, cx))
 5439                        .collect::<Vec<_>>(),
 5440                    flexes: Some(flexes.lock().clone()),
 5441                },
 5442                Member::Pane(pane_handle) => {
 5443                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5444                }
 5445            }
 5446        }
 5447
 5448        fn build_serialized_docks(
 5449            this: &Workspace,
 5450            window: &mut Window,
 5451            cx: &mut App,
 5452        ) -> DockStructure {
 5453            let left_dock = this.left_dock.read(cx);
 5454            let left_visible = left_dock.is_open();
 5455            let left_active_panel = left_dock
 5456                .active_panel()
 5457                .map(|panel| panel.persistent_name().to_string());
 5458            let left_dock_zoom = left_dock
 5459                .active_panel()
 5460                .map(|panel| panel.is_zoomed(window, cx))
 5461                .unwrap_or(false);
 5462
 5463            let right_dock = this.right_dock.read(cx);
 5464            let right_visible = right_dock.is_open();
 5465            let right_active_panel = right_dock
 5466                .active_panel()
 5467                .map(|panel| panel.persistent_name().to_string());
 5468            let right_dock_zoom = right_dock
 5469                .active_panel()
 5470                .map(|panel| panel.is_zoomed(window, cx))
 5471                .unwrap_or(false);
 5472
 5473            let bottom_dock = this.bottom_dock.read(cx);
 5474            let bottom_visible = bottom_dock.is_open();
 5475            let bottom_active_panel = bottom_dock
 5476                .active_panel()
 5477                .map(|panel| panel.persistent_name().to_string());
 5478            let bottom_dock_zoom = bottom_dock
 5479                .active_panel()
 5480                .map(|panel| panel.is_zoomed(window, cx))
 5481                .unwrap_or(false);
 5482
 5483            DockStructure {
 5484                left: DockData {
 5485                    visible: left_visible,
 5486                    active_panel: left_active_panel,
 5487                    zoom: left_dock_zoom,
 5488                },
 5489                right: DockData {
 5490                    visible: right_visible,
 5491                    active_panel: right_active_panel,
 5492                    zoom: right_dock_zoom,
 5493                },
 5494                bottom: DockData {
 5495                    visible: bottom_visible,
 5496                    active_panel: bottom_active_panel,
 5497                    zoom: bottom_dock_zoom,
 5498                },
 5499            }
 5500        }
 5501
 5502        match self.serialize_workspace_location(cx) {
 5503            WorkspaceLocation::Location(location, paths) => {
 5504                let breakpoints = self.project.update(cx, |project, cx| {
 5505                    project
 5506                        .breakpoint_store()
 5507                        .read(cx)
 5508                        .all_source_breakpoints(cx)
 5509                });
 5510                let user_toolchains = self
 5511                    .project
 5512                    .read(cx)
 5513                    .user_toolchains(cx)
 5514                    .unwrap_or_default();
 5515
 5516                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5517                let docks = build_serialized_docks(self, window, cx);
 5518                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5519
 5520                let serialized_workspace = SerializedWorkspace {
 5521                    id: database_id,
 5522                    location,
 5523                    paths,
 5524                    center_group,
 5525                    window_bounds,
 5526                    display: Default::default(),
 5527                    docks,
 5528                    centered_layout: self.centered_layout,
 5529                    session_id: self.session_id.clone(),
 5530                    breakpoints,
 5531                    window_id: Some(window.window_handle().window_id().as_u64()),
 5532                    user_toolchains,
 5533                };
 5534
 5535                window.spawn(cx, async move |_| {
 5536                    persistence::DB.save_workspace(serialized_workspace).await;
 5537                })
 5538            }
 5539            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5540                persistence::DB
 5541                    .set_session_id(database_id, None)
 5542                    .await
 5543                    .log_err();
 5544            }),
 5545            WorkspaceLocation::None => Task::ready(()),
 5546        }
 5547    }
 5548
 5549    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5550        let paths = PathList::new(&self.root_paths(cx));
 5551        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5552            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5553        } else if self.project.read(cx).is_local() {
 5554            if !paths.is_empty() {
 5555                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5556            } else {
 5557                WorkspaceLocation::DetachFromSession
 5558            }
 5559        } else {
 5560            WorkspaceLocation::None
 5561        }
 5562    }
 5563
 5564    fn update_history(&self, cx: &mut App) {
 5565        let Some(id) = self.database_id() else {
 5566            return;
 5567        };
 5568        if !self.project.read(cx).is_local() {
 5569            return;
 5570        }
 5571        if let Some(manager) = HistoryManager::global(cx) {
 5572            let paths = PathList::new(&self.root_paths(cx));
 5573            manager.update(cx, |this, cx| {
 5574                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5575            });
 5576        }
 5577    }
 5578
 5579    async fn serialize_items(
 5580        this: &WeakEntity<Self>,
 5581        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5582        cx: &mut AsyncWindowContext,
 5583    ) -> Result<()> {
 5584        const CHUNK_SIZE: usize = 200;
 5585
 5586        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5587
 5588        while let Some(items_received) = serializable_items.next().await {
 5589            let unique_items =
 5590                items_received
 5591                    .into_iter()
 5592                    .fold(HashMap::default(), |mut acc, item| {
 5593                        acc.entry(item.item_id()).or_insert(item);
 5594                        acc
 5595                    });
 5596
 5597            // We use into_iter() here so that the references to the items are moved into
 5598            // the tasks and not kept alive while we're sleeping.
 5599            for (_, item) in unique_items.into_iter() {
 5600                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5601                    item.serialize(workspace, false, window, cx)
 5602                }) {
 5603                    cx.background_spawn(async move { task.await.log_err() })
 5604                        .detach();
 5605                }
 5606            }
 5607
 5608            cx.background_executor()
 5609                .timer(SERIALIZATION_THROTTLE_TIME)
 5610                .await;
 5611        }
 5612
 5613        Ok(())
 5614    }
 5615
 5616    pub(crate) fn enqueue_item_serialization(
 5617        &mut self,
 5618        item: Box<dyn SerializableItemHandle>,
 5619    ) -> Result<()> {
 5620        self.serializable_items_tx
 5621            .unbounded_send(item)
 5622            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5623    }
 5624
 5625    pub(crate) fn load_workspace(
 5626        serialized_workspace: SerializedWorkspace,
 5627        paths_to_open: Vec<Option<ProjectPath>>,
 5628        window: &mut Window,
 5629        cx: &mut Context<Workspace>,
 5630    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5631        cx.spawn_in(window, async move |workspace, cx| {
 5632            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5633
 5634            let mut center_group = None;
 5635            let mut center_items = None;
 5636
 5637            // Traverse the splits tree and add to things
 5638            if let Some((group, active_pane, items)) = serialized_workspace
 5639                .center_group
 5640                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5641                .await
 5642            {
 5643                center_items = Some(items);
 5644                center_group = Some((group, active_pane))
 5645            }
 5646
 5647            let mut items_by_project_path = HashMap::default();
 5648            let mut item_ids_by_kind = HashMap::default();
 5649            let mut all_deserialized_items = Vec::default();
 5650            cx.update(|_, cx| {
 5651                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5652                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5653                        item_ids_by_kind
 5654                            .entry(serializable_item_handle.serialized_item_kind())
 5655                            .or_insert(Vec::new())
 5656                            .push(item.item_id().as_u64() as ItemId);
 5657                    }
 5658
 5659                    if let Some(project_path) = item.project_path(cx) {
 5660                        items_by_project_path.insert(project_path, item.clone());
 5661                    }
 5662                    all_deserialized_items.push(item);
 5663                }
 5664            })?;
 5665
 5666            let opened_items = paths_to_open
 5667                .into_iter()
 5668                .map(|path_to_open| {
 5669                    path_to_open
 5670                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5671                })
 5672                .collect::<Vec<_>>();
 5673
 5674            // Remove old panes from workspace panes list
 5675            workspace.update_in(cx, |workspace, window, cx| {
 5676                if let Some((center_group, active_pane)) = center_group {
 5677                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5678
 5679                    // Swap workspace center group
 5680                    workspace.center = PaneGroup::with_root(center_group);
 5681                    if let Some(active_pane) = active_pane {
 5682                        workspace.set_active_pane(&active_pane, window, cx);
 5683                        cx.focus_self(window);
 5684                    } else {
 5685                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5686                    }
 5687                }
 5688
 5689                let docks = serialized_workspace.docks;
 5690
 5691                for (dock, serialized_dock) in [
 5692                    (&mut workspace.right_dock, docks.right),
 5693                    (&mut workspace.left_dock, docks.left),
 5694                    (&mut workspace.bottom_dock, docks.bottom),
 5695                ]
 5696                .iter_mut()
 5697                {
 5698                    dock.update(cx, |dock, cx| {
 5699                        dock.serialized_dock = Some(serialized_dock.clone());
 5700                        dock.restore_state(window, cx);
 5701                    });
 5702                }
 5703
 5704                cx.notify();
 5705            })?;
 5706
 5707            let _ = project
 5708                .update(cx, |project, cx| {
 5709                    project
 5710                        .breakpoint_store()
 5711                        .update(cx, |breakpoint_store, cx| {
 5712                            breakpoint_store
 5713                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5714                        })
 5715                })?
 5716                .await;
 5717
 5718            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5719            // after loading the items, we might have different items and in order to avoid
 5720            // the database filling up, we delete items that haven't been loaded now.
 5721            //
 5722            // The items that have been loaded, have been saved after they've been added to the workspace.
 5723            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5724                item_ids_by_kind
 5725                    .into_iter()
 5726                    .map(|(item_kind, loaded_items)| {
 5727                        SerializableItemRegistry::cleanup(
 5728                            item_kind,
 5729                            serialized_workspace.id,
 5730                            loaded_items,
 5731                            window,
 5732                            cx,
 5733                        )
 5734                        .log_err()
 5735                    })
 5736                    .collect::<Vec<_>>()
 5737            })?;
 5738
 5739            futures::future::join_all(clean_up_tasks).await;
 5740
 5741            workspace
 5742                .update_in(cx, |workspace, window, cx| {
 5743                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5744                    workspace.serialize_workspace_internal(window, cx).detach();
 5745
 5746                    // Ensure that we mark the window as edited if we did load dirty items
 5747                    workspace.update_window_edited(window, cx);
 5748                })
 5749                .ok();
 5750
 5751            Ok(opened_items)
 5752        })
 5753    }
 5754
 5755    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5756        self.add_workspace_actions_listeners(div, window, cx)
 5757            .on_action(cx.listener(
 5758                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5759                    for action in &action_sequence.0 {
 5760                        window.dispatch_action(action.boxed_clone(), cx);
 5761                    }
 5762                },
 5763            ))
 5764            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5765            .on_action(cx.listener(Self::close_all_items_and_panes))
 5766            .on_action(cx.listener(Self::save_all))
 5767            .on_action(cx.listener(Self::send_keystrokes))
 5768            .on_action(cx.listener(Self::add_folder_to_project))
 5769            .on_action(cx.listener(Self::follow_next_collaborator))
 5770            .on_action(cx.listener(Self::close_window))
 5771            .on_action(cx.listener(Self::activate_pane_at_index))
 5772            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5773            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5774            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5775            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5776                let pane = workspace.active_pane().clone();
 5777                workspace.unfollow_in_pane(&pane, window, cx);
 5778            }))
 5779            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5780                workspace
 5781                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5782                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5783            }))
 5784            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5785                workspace
 5786                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5787                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5788            }))
 5789            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5790                workspace
 5791                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5792                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5793            }))
 5794            .on_action(
 5795                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5796                    workspace.activate_previous_pane(window, cx)
 5797                }),
 5798            )
 5799            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5800                workspace.activate_next_pane(window, cx)
 5801            }))
 5802            .on_action(
 5803                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5804                    workspace.activate_next_window(cx)
 5805                }),
 5806            )
 5807            .on_action(
 5808                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5809                    workspace.activate_previous_window(cx)
 5810                }),
 5811            )
 5812            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5813                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5814            }))
 5815            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5816                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5817            }))
 5818            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5819                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5820            }))
 5821            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5822                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5823            }))
 5824            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5825                workspace.activate_next_pane(window, cx)
 5826            }))
 5827            .on_action(cx.listener(
 5828                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5829                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5830                },
 5831            ))
 5832            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5833                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5834            }))
 5835            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5836                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5837            }))
 5838            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5839                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5840            }))
 5841            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5842                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5843            }))
 5844            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5845                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5846                    SplitDirection::Down,
 5847                    SplitDirection::Up,
 5848                    SplitDirection::Right,
 5849                    SplitDirection::Left,
 5850                ];
 5851                for dir in DIRECTION_PRIORITY {
 5852                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 5853                        workspace.swap_pane_in_direction(dir, cx);
 5854                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 5855                        break;
 5856                    }
 5857                }
 5858            }))
 5859            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5860                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5861            }))
 5862            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5863                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5864            }))
 5865            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5866                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5867            }))
 5868            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5869                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5870            }))
 5871            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5872                this.toggle_dock(DockPosition::Left, window, cx);
 5873            }))
 5874            .on_action(cx.listener(
 5875                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5876                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5877                },
 5878            ))
 5879            .on_action(cx.listener(
 5880                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5881                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5882                },
 5883            ))
 5884            .on_action(cx.listener(
 5885                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5886                    if !workspace.close_active_dock(window, cx) {
 5887                        cx.propagate();
 5888                    }
 5889                },
 5890            ))
 5891            .on_action(
 5892                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5893                    workspace.close_all_docks(window, cx);
 5894                }),
 5895            )
 5896            .on_action(cx.listener(Self::toggle_all_docks))
 5897            .on_action(cx.listener(
 5898                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5899                    workspace.clear_all_notifications(cx);
 5900                },
 5901            ))
 5902            .on_action(cx.listener(
 5903                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 5904                    workspace.clear_navigation_history(window, cx);
 5905                },
 5906            ))
 5907            .on_action(cx.listener(
 5908                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5909                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5910                        workspace.suppress_notification(&notification_id, cx);
 5911                    }
 5912                },
 5913            ))
 5914            .on_action(cx.listener(
 5915                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5916                    workspace.reopen_closed_item(window, cx).detach();
 5917                },
 5918            ))
 5919            .on_action(cx.listener(
 5920                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5921                    for dock in workspace.all_docks() {
 5922                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5923                            let Some(panel) = dock.read(cx).active_panel() else {
 5924                                return;
 5925                            };
 5926
 5927                            // Set to `None`, then the size will fall back to the default.
 5928                            panel.clone().set_size(None, window, cx);
 5929
 5930                            return;
 5931                        }
 5932                    }
 5933                },
 5934            ))
 5935            .on_action(cx.listener(
 5936                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5937                    for dock in workspace.all_docks() {
 5938                        if let Some(panel) = dock.read(cx).visible_panel() {
 5939                            // Set to `None`, then the size will fall back to the default.
 5940                            panel.clone().set_size(None, window, cx);
 5941                        }
 5942                    }
 5943                },
 5944            ))
 5945            .on_action(cx.listener(
 5946                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5947                    adjust_active_dock_size_by_px(
 5948                        px_with_ui_font_fallback(act.px, cx),
 5949                        workspace,
 5950                        window,
 5951                        cx,
 5952                    );
 5953                },
 5954            ))
 5955            .on_action(cx.listener(
 5956                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5957                    adjust_active_dock_size_by_px(
 5958                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5959                        workspace,
 5960                        window,
 5961                        cx,
 5962                    );
 5963                },
 5964            ))
 5965            .on_action(cx.listener(
 5966                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5967                    adjust_open_docks_size_by_px(
 5968                        px_with_ui_font_fallback(act.px, cx),
 5969                        workspace,
 5970                        window,
 5971                        cx,
 5972                    );
 5973                },
 5974            ))
 5975            .on_action(cx.listener(
 5976                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5977                    adjust_open_docks_size_by_px(
 5978                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5979                        workspace,
 5980                        window,
 5981                        cx,
 5982                    );
 5983                },
 5984            ))
 5985            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5986            .on_action(cx.listener(
 5987                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 5988                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 5989                        let dock = active_dock.read(cx);
 5990                        if let Some(active_panel) = dock.active_panel() {
 5991                            if active_panel.pane(cx).is_none() {
 5992                                let mut recent_pane: Option<Entity<Pane>> = None;
 5993                                let mut recent_timestamp = 0;
 5994                                for pane_handle in workspace.panes() {
 5995                                    let pane = pane_handle.read(cx);
 5996                                    for entry in pane.activation_history() {
 5997                                        if entry.timestamp > recent_timestamp {
 5998                                            recent_timestamp = entry.timestamp;
 5999                                            recent_pane = Some(pane_handle.clone());
 6000                                        }
 6001                                    }
 6002                                }
 6003
 6004                                if let Some(pane) = recent_pane {
 6005                                    pane.update(cx, |pane, cx| {
 6006                                        let current_index = pane.active_item_index();
 6007                                        let items_len = pane.items_len();
 6008                                        if items_len > 0 {
 6009                                            let next_index = if current_index + 1 < items_len {
 6010                                                current_index + 1
 6011                                            } else {
 6012                                                0
 6013                                            };
 6014                                            pane.activate_item(
 6015                                                next_index, false, false, window, cx,
 6016                                            );
 6017                                        }
 6018                                    });
 6019                                    return;
 6020                                }
 6021                            }
 6022                        }
 6023                    }
 6024                    cx.propagate();
 6025                },
 6026            ))
 6027            .on_action(cx.listener(
 6028                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6029                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6030                        let dock = active_dock.read(cx);
 6031                        if let Some(active_panel) = dock.active_panel() {
 6032                            if active_panel.pane(cx).is_none() {
 6033                                let mut recent_pane: Option<Entity<Pane>> = None;
 6034                                let mut recent_timestamp = 0;
 6035                                for pane_handle in workspace.panes() {
 6036                                    let pane = pane_handle.read(cx);
 6037                                    for entry in pane.activation_history() {
 6038                                        if entry.timestamp > recent_timestamp {
 6039                                            recent_timestamp = entry.timestamp;
 6040                                            recent_pane = Some(pane_handle.clone());
 6041                                        }
 6042                                    }
 6043                                }
 6044
 6045                                if let Some(pane) = recent_pane {
 6046                                    pane.update(cx, |pane, cx| {
 6047                                        let current_index = pane.active_item_index();
 6048                                        let items_len = pane.items_len();
 6049                                        if items_len > 0 {
 6050                                            let prev_index = if current_index > 0 {
 6051                                                current_index - 1
 6052                                            } else {
 6053                                                items_len.saturating_sub(1)
 6054                                            };
 6055                                            pane.activate_item(
 6056                                                prev_index, false, false, window, cx,
 6057                                            );
 6058                                        }
 6059                                    });
 6060                                    return;
 6061                                }
 6062                            }
 6063                        }
 6064                    }
 6065                    cx.propagate();
 6066                },
 6067            ))
 6068            .on_action(cx.listener(Workspace::cancel))
 6069    }
 6070
 6071    #[cfg(any(test, feature = "test-support"))]
 6072    pub fn set_random_database_id(&mut self) {
 6073        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6074    }
 6075
 6076    #[cfg(any(test, feature = "test-support"))]
 6077    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6078        use node_runtime::NodeRuntime;
 6079        use session::Session;
 6080
 6081        let client = project.read(cx).client();
 6082        let user_store = project.read(cx).user_store();
 6083        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6084        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6085        window.activate_window();
 6086        let app_state = Arc::new(AppState {
 6087            languages: project.read(cx).languages().clone(),
 6088            workspace_store,
 6089            client,
 6090            user_store,
 6091            fs: project.read(cx).fs().clone(),
 6092            build_window_options: |_, _| Default::default(),
 6093            node_runtime: NodeRuntime::unavailable(),
 6094            session,
 6095        });
 6096        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6097        workspace
 6098            .active_pane
 6099            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 6100        workspace
 6101    }
 6102
 6103    pub fn register_action<A: Action>(
 6104        &mut self,
 6105        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6106    ) -> &mut Self {
 6107        let callback = Arc::new(callback);
 6108
 6109        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6110            let callback = callback.clone();
 6111            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6112                (callback)(workspace, event, window, cx)
 6113            }))
 6114        }));
 6115        self
 6116    }
 6117    pub fn register_action_renderer(
 6118        &mut self,
 6119        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6120    ) -> &mut Self {
 6121        self.workspace_actions.push(Box::new(callback));
 6122        self
 6123    }
 6124
 6125    fn add_workspace_actions_listeners(
 6126        &self,
 6127        mut div: Div,
 6128        window: &mut Window,
 6129        cx: &mut Context<Self>,
 6130    ) -> Div {
 6131        for action in self.workspace_actions.iter() {
 6132            div = (action)(div, self, window, cx)
 6133        }
 6134        div
 6135    }
 6136
 6137    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6138        self.modal_layer.read(cx).has_active_modal()
 6139    }
 6140
 6141    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6142        self.modal_layer.read(cx).active_modal()
 6143    }
 6144
 6145    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6146    where
 6147        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6148    {
 6149        self.modal_layer.update(cx, |modal_layer, cx| {
 6150            modal_layer.toggle_modal(window, cx, build)
 6151        })
 6152    }
 6153
 6154    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6155        self.modal_layer
 6156            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6157    }
 6158
 6159    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6160        self.toast_layer
 6161            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6162    }
 6163
 6164    pub fn toggle_centered_layout(
 6165        &mut self,
 6166        _: &ToggleCenteredLayout,
 6167        _: &mut Window,
 6168        cx: &mut Context<Self>,
 6169    ) {
 6170        self.centered_layout = !self.centered_layout;
 6171        if let Some(database_id) = self.database_id() {
 6172            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6173                .detach_and_log_err(cx);
 6174        }
 6175        cx.notify();
 6176    }
 6177
 6178    fn adjust_padding(padding: Option<f32>) -> f32 {
 6179        padding
 6180            .unwrap_or(CenteredPaddingSettings::default().0)
 6181            .clamp(
 6182                CenteredPaddingSettings::MIN_PADDING,
 6183                CenteredPaddingSettings::MAX_PADDING,
 6184            )
 6185    }
 6186
 6187    fn render_dock(
 6188        &self,
 6189        position: DockPosition,
 6190        dock: &Entity<Dock>,
 6191        window: &mut Window,
 6192        cx: &mut App,
 6193    ) -> Option<Div> {
 6194        if self.zoomed_position == Some(position) {
 6195            return None;
 6196        }
 6197
 6198        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6199            let pane = panel.pane(cx)?;
 6200            let follower_states = &self.follower_states;
 6201            leader_border_for_pane(follower_states, &pane, window, cx)
 6202        });
 6203
 6204        Some(
 6205            div()
 6206                .flex()
 6207                .flex_none()
 6208                .overflow_hidden()
 6209                .child(dock.clone())
 6210                .children(leader_border),
 6211        )
 6212    }
 6213
 6214    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6215        window.root().flatten()
 6216    }
 6217
 6218    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6219        self.zoomed.as_ref()
 6220    }
 6221
 6222    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6223        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6224            return;
 6225        };
 6226        let windows = cx.windows();
 6227        let next_window =
 6228            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6229                || {
 6230                    windows
 6231                        .iter()
 6232                        .cycle()
 6233                        .skip_while(|window| window.window_id() != current_window_id)
 6234                        .nth(1)
 6235                },
 6236            );
 6237
 6238        if let Some(window) = next_window {
 6239            window
 6240                .update(cx, |_, window, _| window.activate_window())
 6241                .ok();
 6242        }
 6243    }
 6244
 6245    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6246        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6247            return;
 6248        };
 6249        let windows = cx.windows();
 6250        let prev_window =
 6251            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6252                || {
 6253                    windows
 6254                        .iter()
 6255                        .rev()
 6256                        .cycle()
 6257                        .skip_while(|window| window.window_id() != current_window_id)
 6258                        .nth(1)
 6259                },
 6260            );
 6261
 6262        if let Some(window) = prev_window {
 6263            window
 6264                .update(cx, |_, window, _| window.activate_window())
 6265                .ok();
 6266        }
 6267    }
 6268
 6269    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6270        if cx.stop_active_drag(window) {
 6271        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6272            dismiss_app_notification(&notification_id, cx);
 6273        } else {
 6274            cx.propagate();
 6275        }
 6276    }
 6277
 6278    fn adjust_dock_size_by_px(
 6279        &mut self,
 6280        panel_size: Pixels,
 6281        dock_pos: DockPosition,
 6282        px: Pixels,
 6283        window: &mut Window,
 6284        cx: &mut Context<Self>,
 6285    ) {
 6286        match dock_pos {
 6287            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6288            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6289            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6290        }
 6291    }
 6292
 6293    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6294        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6295
 6296        self.left_dock.update(cx, |left_dock, cx| {
 6297            if WorkspaceSettings::get_global(cx)
 6298                .resize_all_panels_in_dock
 6299                .contains(&DockPosition::Left)
 6300            {
 6301                left_dock.resize_all_panels(Some(size), window, cx);
 6302            } else {
 6303                left_dock.resize_active_panel(Some(size), window, cx);
 6304            }
 6305        });
 6306    }
 6307
 6308    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6309        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6310        self.left_dock.read_with(cx, |left_dock, cx| {
 6311            let left_dock_size = left_dock
 6312                .active_panel_size(window, cx)
 6313                .unwrap_or(Pixels::ZERO);
 6314            if left_dock_size + size > self.bounds.right() {
 6315                size = self.bounds.right() - left_dock_size
 6316            }
 6317        });
 6318        self.right_dock.update(cx, |right_dock, cx| {
 6319            if WorkspaceSettings::get_global(cx)
 6320                .resize_all_panels_in_dock
 6321                .contains(&DockPosition::Right)
 6322            {
 6323                right_dock.resize_all_panels(Some(size), window, cx);
 6324            } else {
 6325                right_dock.resize_active_panel(Some(size), window, cx);
 6326            }
 6327        });
 6328    }
 6329
 6330    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6331        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6332        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6333            if WorkspaceSettings::get_global(cx)
 6334                .resize_all_panels_in_dock
 6335                .contains(&DockPosition::Bottom)
 6336            {
 6337                bottom_dock.resize_all_panels(Some(size), window, cx);
 6338            } else {
 6339                bottom_dock.resize_active_panel(Some(size), window, cx);
 6340            }
 6341        });
 6342    }
 6343
 6344    fn toggle_edit_predictions_all_files(
 6345        &mut self,
 6346        _: &ToggleEditPrediction,
 6347        _window: &mut Window,
 6348        cx: &mut Context<Self>,
 6349    ) {
 6350        let fs = self.project().read(cx).fs().clone();
 6351        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6352        update_settings_file(fs, cx, move |file, _| {
 6353            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6354        });
 6355    }
 6356}
 6357
 6358fn leader_border_for_pane(
 6359    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6360    pane: &Entity<Pane>,
 6361    _: &Window,
 6362    cx: &App,
 6363) -> Option<Div> {
 6364    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6365        if state.pane() == pane {
 6366            Some((*leader_id, state))
 6367        } else {
 6368            None
 6369        }
 6370    })?;
 6371
 6372    let mut leader_color = match leader_id {
 6373        CollaboratorId::PeerId(leader_peer_id) => {
 6374            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6375            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6376
 6377            cx.theme()
 6378                .players()
 6379                .color_for_participant(leader.participant_index.0)
 6380                .cursor
 6381        }
 6382        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6383    };
 6384    leader_color.fade_out(0.3);
 6385    Some(
 6386        div()
 6387            .absolute()
 6388            .size_full()
 6389            .left_0()
 6390            .top_0()
 6391            .border_2()
 6392            .border_color(leader_color),
 6393    )
 6394}
 6395
 6396fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6397    ZED_WINDOW_POSITION
 6398        .zip(*ZED_WINDOW_SIZE)
 6399        .map(|(position, size)| Bounds {
 6400            origin: position,
 6401            size,
 6402        })
 6403}
 6404
 6405fn open_items(
 6406    serialized_workspace: Option<SerializedWorkspace>,
 6407    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6408    window: &mut Window,
 6409    cx: &mut Context<Workspace>,
 6410) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6411    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6412        Workspace::load_workspace(
 6413            serialized_workspace,
 6414            project_paths_to_open
 6415                .iter()
 6416                .map(|(_, project_path)| project_path)
 6417                .cloned()
 6418                .collect(),
 6419            window,
 6420            cx,
 6421        )
 6422    });
 6423
 6424    cx.spawn_in(window, async move |workspace, cx| {
 6425        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6426
 6427        if let Some(restored_items) = restored_items {
 6428            let restored_items = restored_items.await?;
 6429
 6430            let restored_project_paths = restored_items
 6431                .iter()
 6432                .filter_map(|item| {
 6433                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6434                        .ok()
 6435                        .flatten()
 6436                })
 6437                .collect::<HashSet<_>>();
 6438
 6439            for restored_item in restored_items {
 6440                opened_items.push(restored_item.map(Ok));
 6441            }
 6442
 6443            project_paths_to_open
 6444                .iter_mut()
 6445                .for_each(|(_, project_path)| {
 6446                    if let Some(project_path_to_open) = project_path
 6447                        && restored_project_paths.contains(project_path_to_open)
 6448                    {
 6449                        *project_path = None;
 6450                    }
 6451                });
 6452        } else {
 6453            for _ in 0..project_paths_to_open.len() {
 6454                opened_items.push(None);
 6455            }
 6456        }
 6457        assert!(opened_items.len() == project_paths_to_open.len());
 6458
 6459        let tasks =
 6460            project_paths_to_open
 6461                .into_iter()
 6462                .enumerate()
 6463                .map(|(ix, (abs_path, project_path))| {
 6464                    let workspace = workspace.clone();
 6465                    cx.spawn(async move |cx| {
 6466                        let file_project_path = project_path?;
 6467                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6468                            workspace.project().update(cx, |project, cx| {
 6469                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6470                            })
 6471                        });
 6472
 6473                        // We only want to open file paths here. If one of the items
 6474                        // here is a directory, it was already opened further above
 6475                        // with a `find_or_create_worktree`.
 6476                        if let Ok(task) = abs_path_task
 6477                            && task.await.is_none_or(|p| p.is_file())
 6478                        {
 6479                            return Some((
 6480                                ix,
 6481                                workspace
 6482                                    .update_in(cx, |workspace, window, cx| {
 6483                                        workspace.open_path(
 6484                                            file_project_path,
 6485                                            None,
 6486                                            true,
 6487                                            window,
 6488                                            cx,
 6489                                        )
 6490                                    })
 6491                                    .log_err()?
 6492                                    .await,
 6493                            ));
 6494                        }
 6495                        None
 6496                    })
 6497                });
 6498
 6499        let tasks = tasks.collect::<Vec<_>>();
 6500
 6501        let tasks = futures::future::join_all(tasks);
 6502        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6503            opened_items[ix] = Some(path_open_result);
 6504        }
 6505
 6506        Ok(opened_items)
 6507    })
 6508}
 6509
 6510enum ActivateInDirectionTarget {
 6511    Pane(Entity<Pane>),
 6512    Dock(Entity<Dock>),
 6513}
 6514
 6515fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6516    workspace
 6517        .update(cx, |workspace, _, cx| {
 6518            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6519                struct DatabaseFailedNotification;
 6520
 6521                workspace.show_notification(
 6522                    NotificationId::unique::<DatabaseFailedNotification>(),
 6523                    cx,
 6524                    |cx| {
 6525                        cx.new(|cx| {
 6526                            MessageNotification::new("Failed to load the database file.", cx)
 6527                                .primary_message("File an Issue")
 6528                                .primary_icon(IconName::Plus)
 6529                                .primary_on_click(|window, cx| {
 6530                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6531                                })
 6532                        })
 6533                    },
 6534                );
 6535            }
 6536        })
 6537        .log_err();
 6538}
 6539
 6540fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6541    if val == 0 {
 6542        ThemeSettings::get_global(cx).ui_font_size(cx)
 6543    } else {
 6544        px(val as f32)
 6545    }
 6546}
 6547
 6548fn adjust_active_dock_size_by_px(
 6549    px: Pixels,
 6550    workspace: &mut Workspace,
 6551    window: &mut Window,
 6552    cx: &mut Context<Workspace>,
 6553) {
 6554    let Some(active_dock) = workspace
 6555        .all_docks()
 6556        .into_iter()
 6557        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6558    else {
 6559        return;
 6560    };
 6561    let dock = active_dock.read(cx);
 6562    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6563        return;
 6564    };
 6565    let dock_pos = dock.position();
 6566    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6567}
 6568
 6569fn adjust_open_docks_size_by_px(
 6570    px: Pixels,
 6571    workspace: &mut Workspace,
 6572    window: &mut Window,
 6573    cx: &mut Context<Workspace>,
 6574) {
 6575    let docks = workspace
 6576        .all_docks()
 6577        .into_iter()
 6578        .filter_map(|dock| {
 6579            if dock.read(cx).is_open() {
 6580                let dock = dock.read(cx);
 6581                let panel_size = dock.active_panel_size(window, cx)?;
 6582                let dock_pos = dock.position();
 6583                Some((panel_size, dock_pos, px))
 6584            } else {
 6585                None
 6586            }
 6587        })
 6588        .collect::<Vec<_>>();
 6589
 6590    docks
 6591        .into_iter()
 6592        .for_each(|(panel_size, dock_pos, offset)| {
 6593            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6594        });
 6595}
 6596
 6597impl Focusable for Workspace {
 6598    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6599        self.active_pane.focus_handle(cx)
 6600    }
 6601}
 6602
 6603#[derive(Clone)]
 6604struct DraggedDock(DockPosition);
 6605
 6606impl Render for DraggedDock {
 6607    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6608        gpui::Empty
 6609    }
 6610}
 6611
 6612impl Render for Workspace {
 6613    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6614        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6615        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6616            log::info!("Rendered first frame");
 6617        }
 6618        let mut context = KeyContext::new_with_defaults();
 6619        context.add("Workspace");
 6620        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6621        if let Some(status) = self
 6622            .debugger_provider
 6623            .as_ref()
 6624            .and_then(|provider| provider.active_thread_state(cx))
 6625        {
 6626            match status {
 6627                ThreadStatus::Running | ThreadStatus::Stepping => {
 6628                    context.add("debugger_running");
 6629                }
 6630                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6631                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6632            }
 6633        }
 6634
 6635        if self.left_dock.read(cx).is_open() {
 6636            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6637                context.set("left_dock", active_panel.panel_key());
 6638            }
 6639        }
 6640
 6641        if self.right_dock.read(cx).is_open() {
 6642            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6643                context.set("right_dock", active_panel.panel_key());
 6644            }
 6645        }
 6646
 6647        if self.bottom_dock.read(cx).is_open() {
 6648            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6649                context.set("bottom_dock", active_panel.panel_key());
 6650            }
 6651        }
 6652
 6653        let centered_layout = self.centered_layout
 6654            && self.center.panes().len() == 1
 6655            && self.active_item(cx).is_some();
 6656        let render_padding = |size| {
 6657            (size > 0.0).then(|| {
 6658                div()
 6659                    .h_full()
 6660                    .w(relative(size))
 6661                    .bg(cx.theme().colors().editor_background)
 6662                    .border_color(cx.theme().colors().pane_group_border)
 6663            })
 6664        };
 6665        let paddings = if centered_layout {
 6666            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6667            (
 6668                render_padding(Self::adjust_padding(
 6669                    settings.left_padding.map(|padding| padding.0),
 6670                )),
 6671                render_padding(Self::adjust_padding(
 6672                    settings.right_padding.map(|padding| padding.0),
 6673                )),
 6674            )
 6675        } else {
 6676            (None, None)
 6677        };
 6678        let ui_font = theme::setup_ui_font(window, cx);
 6679
 6680        let theme = cx.theme().clone();
 6681        let colors = theme.colors();
 6682        let notification_entities = self
 6683            .notifications
 6684            .iter()
 6685            .map(|(_, notification)| notification.entity_id())
 6686            .collect::<Vec<_>>();
 6687        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6688
 6689        client_side_decorations(
 6690            self.actions(div(), window, cx)
 6691                .key_context(context)
 6692                .relative()
 6693                .size_full()
 6694                .flex()
 6695                .flex_col()
 6696                .font(ui_font)
 6697                .gap_0()
 6698                .justify_start()
 6699                .items_start()
 6700                .text_color(colors.text)
 6701                .overflow_hidden()
 6702                .children(self.titlebar_item.clone())
 6703                .on_modifiers_changed(move |_, _, cx| {
 6704                    for &id in &notification_entities {
 6705                        cx.notify(id);
 6706                    }
 6707                })
 6708                .child(
 6709                    div()
 6710                        .size_full()
 6711                        .relative()
 6712                        .flex_1()
 6713                        .flex()
 6714                        .flex_col()
 6715                        .child(
 6716                            div()
 6717                                .id("workspace")
 6718                                .bg(colors.background)
 6719                                .relative()
 6720                                .flex_1()
 6721                                .w_full()
 6722                                .flex()
 6723                                .flex_col()
 6724                                .overflow_hidden()
 6725                                .border_t_1()
 6726                                .border_b_1()
 6727                                .border_color(colors.border)
 6728                                .child({
 6729                                    let this = cx.entity();
 6730                                    canvas(
 6731                                        move |bounds, window, cx| {
 6732                                            this.update(cx, |this, cx| {
 6733                                                let bounds_changed = this.bounds != bounds;
 6734                                                this.bounds = bounds;
 6735
 6736                                                if bounds_changed {
 6737                                                    this.left_dock.update(cx, |dock, cx| {
 6738                                                        dock.clamp_panel_size(
 6739                                                            bounds.size.width,
 6740                                                            window,
 6741                                                            cx,
 6742                                                        )
 6743                                                    });
 6744
 6745                                                    this.right_dock.update(cx, |dock, cx| {
 6746                                                        dock.clamp_panel_size(
 6747                                                            bounds.size.width,
 6748                                                            window,
 6749                                                            cx,
 6750                                                        )
 6751                                                    });
 6752
 6753                                                    this.bottom_dock.update(cx, |dock, cx| {
 6754                                                        dock.clamp_panel_size(
 6755                                                            bounds.size.height,
 6756                                                            window,
 6757                                                            cx,
 6758                                                        )
 6759                                                    });
 6760                                                }
 6761                                            })
 6762                                        },
 6763                                        |_, _, _, _| {},
 6764                                    )
 6765                                    .absolute()
 6766                                    .size_full()
 6767                                })
 6768                                .when(self.zoomed.is_none(), |this| {
 6769                                    this.on_drag_move(cx.listener(
 6770                                        move |workspace,
 6771                                              e: &DragMoveEvent<DraggedDock>,
 6772                                              window,
 6773                                              cx| {
 6774                                            if workspace.previous_dock_drag_coordinates
 6775                                                != Some(e.event.position)
 6776                                            {
 6777                                                workspace.previous_dock_drag_coordinates =
 6778                                                    Some(e.event.position);
 6779                                                match e.drag(cx).0 {
 6780                                                    DockPosition::Left => {
 6781                                                        workspace.resize_left_dock(
 6782                                                            e.event.position.x
 6783                                                                - workspace.bounds.left(),
 6784                                                            window,
 6785                                                            cx,
 6786                                                        );
 6787                                                    }
 6788                                                    DockPosition::Right => {
 6789                                                        workspace.resize_right_dock(
 6790                                                            workspace.bounds.right()
 6791                                                                - e.event.position.x,
 6792                                                            window,
 6793                                                            cx,
 6794                                                        );
 6795                                                    }
 6796                                                    DockPosition::Bottom => {
 6797                                                        workspace.resize_bottom_dock(
 6798                                                            workspace.bounds.bottom()
 6799                                                                - e.event.position.y,
 6800                                                            window,
 6801                                                            cx,
 6802                                                        );
 6803                                                    }
 6804                                                };
 6805                                                workspace.serialize_workspace(window, cx);
 6806                                            }
 6807                                        },
 6808                                    ))
 6809                                })
 6810                                .child({
 6811                                    match bottom_dock_layout {
 6812                                        BottomDockLayout::Full => div()
 6813                                            .flex()
 6814                                            .flex_col()
 6815                                            .h_full()
 6816                                            .child(
 6817                                                div()
 6818                                                    .flex()
 6819                                                    .flex_row()
 6820                                                    .flex_1()
 6821                                                    .overflow_hidden()
 6822                                                    .children(self.render_dock(
 6823                                                        DockPosition::Left,
 6824                                                        &self.left_dock,
 6825                                                        window,
 6826                                                        cx,
 6827                                                    ))
 6828                                                    .child(
 6829                                                        div()
 6830                                                            .flex()
 6831                                                            .flex_col()
 6832                                                            .flex_1()
 6833                                                            .overflow_hidden()
 6834                                                            .child(
 6835                                                                h_flex()
 6836                                                                    .flex_1()
 6837                                                                    .when_some(
 6838                                                                        paddings.0,
 6839                                                                        |this, p| {
 6840                                                                            this.child(
 6841                                                                                p.border_r_1(),
 6842                                                                            )
 6843                                                                        },
 6844                                                                    )
 6845                                                                    .child(self.center.render(
 6846                                                                        self.zoomed.as_ref(),
 6847                                                                        &PaneRenderContext {
 6848                                                                            follower_states:
 6849                                                                                &self.follower_states,
 6850                                                                            active_call: self.active_call(),
 6851                                                                            active_pane: &self.active_pane,
 6852                                                                            app_state: &self.app_state,
 6853                                                                            project: &self.project,
 6854                                                                            workspace: &self.weak_self,
 6855                                                                        },
 6856                                                                        window,
 6857                                                                        cx,
 6858                                                                    ))
 6859                                                                    .when_some(
 6860                                                                        paddings.1,
 6861                                                                        |this, p| {
 6862                                                                            this.child(
 6863                                                                                p.border_l_1(),
 6864                                                                            )
 6865                                                                        },
 6866                                                                    ),
 6867                                                            ),
 6868                                                    )
 6869                                                    .children(self.render_dock(
 6870                                                        DockPosition::Right,
 6871                                                        &self.right_dock,
 6872                                                        window,
 6873                                                        cx,
 6874                                                    )),
 6875                                            )
 6876                                            .child(div().w_full().children(self.render_dock(
 6877                                                DockPosition::Bottom,
 6878                                                &self.bottom_dock,
 6879                                                window,
 6880                                                cx
 6881                                            ))),
 6882
 6883                                        BottomDockLayout::LeftAligned => div()
 6884                                            .flex()
 6885                                            .flex_row()
 6886                                            .h_full()
 6887                                            .child(
 6888                                                div()
 6889                                                    .flex()
 6890                                                    .flex_col()
 6891                                                    .flex_1()
 6892                                                    .h_full()
 6893                                                    .child(
 6894                                                        div()
 6895                                                            .flex()
 6896                                                            .flex_row()
 6897                                                            .flex_1()
 6898                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6899                                                            .child(
 6900                                                                div()
 6901                                                                    .flex()
 6902                                                                    .flex_col()
 6903                                                                    .flex_1()
 6904                                                                    .overflow_hidden()
 6905                                                                    .child(
 6906                                                                        h_flex()
 6907                                                                            .flex_1()
 6908                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6909                                                                            .child(self.center.render(
 6910                                                                                self.zoomed.as_ref(),
 6911                                                                                &PaneRenderContext {
 6912                                                                                    follower_states:
 6913                                                                                        &self.follower_states,
 6914                                                                                    active_call: self.active_call(),
 6915                                                                                    active_pane: &self.active_pane,
 6916                                                                                    app_state: &self.app_state,
 6917                                                                                    project: &self.project,
 6918                                                                                    workspace: &self.weak_self,
 6919                                                                                },
 6920                                                                                window,
 6921                                                                                cx,
 6922                                                                            ))
 6923                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6924                                                                    )
 6925                                                            )
 6926                                                    )
 6927                                                    .child(
 6928                                                        div()
 6929                                                            .w_full()
 6930                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6931                                                    ),
 6932                                            )
 6933                                            .children(self.render_dock(
 6934                                                DockPosition::Right,
 6935                                                &self.right_dock,
 6936                                                window,
 6937                                                cx,
 6938                                            )),
 6939
 6940                                        BottomDockLayout::RightAligned => div()
 6941                                            .flex()
 6942                                            .flex_row()
 6943                                            .h_full()
 6944                                            .children(self.render_dock(
 6945                                                DockPosition::Left,
 6946                                                &self.left_dock,
 6947                                                window,
 6948                                                cx,
 6949                                            ))
 6950                                            .child(
 6951                                                div()
 6952                                                    .flex()
 6953                                                    .flex_col()
 6954                                                    .flex_1()
 6955                                                    .h_full()
 6956                                                    .child(
 6957                                                        div()
 6958                                                            .flex()
 6959                                                            .flex_row()
 6960                                                            .flex_1()
 6961                                                            .child(
 6962                                                                div()
 6963                                                                    .flex()
 6964                                                                    .flex_col()
 6965                                                                    .flex_1()
 6966                                                                    .overflow_hidden()
 6967                                                                    .child(
 6968                                                                        h_flex()
 6969                                                                            .flex_1()
 6970                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6971                                                                            .child(self.center.render(
 6972                                                                                self.zoomed.as_ref(),
 6973                                                                                &PaneRenderContext {
 6974                                                                                    follower_states:
 6975                                                                                        &self.follower_states,
 6976                                                                                    active_call: self.active_call(),
 6977                                                                                    active_pane: &self.active_pane,
 6978                                                                                    app_state: &self.app_state,
 6979                                                                                    project: &self.project,
 6980                                                                                    workspace: &self.weak_self,
 6981                                                                                },
 6982                                                                                window,
 6983                                                                                cx,
 6984                                                                            ))
 6985                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6986                                                                    )
 6987                                                            )
 6988                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6989                                                    )
 6990                                                    .child(
 6991                                                        div()
 6992                                                            .w_full()
 6993                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6994                                                    ),
 6995                                            ),
 6996
 6997                                        BottomDockLayout::Contained => div()
 6998                                            .flex()
 6999                                            .flex_row()
 7000                                            .h_full()
 7001                                            .children(self.render_dock(
 7002                                                DockPosition::Left,
 7003                                                &self.left_dock,
 7004                                                window,
 7005                                                cx,
 7006                                            ))
 7007                                            .child(
 7008                                                div()
 7009                                                    .flex()
 7010                                                    .flex_col()
 7011                                                    .flex_1()
 7012                                                    .overflow_hidden()
 7013                                                    .child(
 7014                                                        h_flex()
 7015                                                            .flex_1()
 7016                                                            .when_some(paddings.0, |this, p| {
 7017                                                                this.child(p.border_r_1())
 7018                                                            })
 7019                                                            .child(self.center.render(
 7020                                                                self.zoomed.as_ref(),
 7021                                                                &PaneRenderContext {
 7022                                                                    follower_states:
 7023                                                                        &self.follower_states,
 7024                                                                    active_call: self.active_call(),
 7025                                                                    active_pane: &self.active_pane,
 7026                                                                    app_state: &self.app_state,
 7027                                                                    project: &self.project,
 7028                                                                    workspace: &self.weak_self,
 7029                                                                },
 7030                                                                window,
 7031                                                                cx,
 7032                                                            ))
 7033                                                            .when_some(paddings.1, |this, p| {
 7034                                                                this.child(p.border_l_1())
 7035                                                            }),
 7036                                                    )
 7037                                                    .children(self.render_dock(
 7038                                                        DockPosition::Bottom,
 7039                                                        &self.bottom_dock,
 7040                                                        window,
 7041                                                        cx,
 7042                                                    )),
 7043                                            )
 7044                                            .children(self.render_dock(
 7045                                                DockPosition::Right,
 7046                                                &self.right_dock,
 7047                                                window,
 7048                                                cx,
 7049                                            )),
 7050                                    }
 7051                                })
 7052                                .children(self.zoomed.as_ref().and_then(|view| {
 7053                                    let zoomed_view = view.upgrade()?;
 7054                                    let div = div()
 7055                                        .occlude()
 7056                                        .absolute()
 7057                                        .overflow_hidden()
 7058                                        .border_color(colors.border)
 7059                                        .bg(colors.background)
 7060                                        .child(zoomed_view)
 7061                                        .inset_0()
 7062                                        .shadow_lg();
 7063
 7064                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7065                                       return Some(div);
 7066                                    }
 7067
 7068                                    Some(match self.zoomed_position {
 7069                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7070                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7071                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7072                                        None => {
 7073                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7074                                        }
 7075                                    })
 7076                                }))
 7077                                .children(self.render_notifications(window, cx)),
 7078                        )
 7079                        .when(self.status_bar_visible(cx), |parent| {
 7080                            parent.child(self.status_bar.clone())
 7081                        })
 7082                        .child(self.modal_layer.clone())
 7083                        .child(self.toast_layer.clone()),
 7084                ),
 7085            window,
 7086            cx,
 7087        )
 7088    }
 7089}
 7090
 7091impl WorkspaceStore {
 7092    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7093        Self {
 7094            workspaces: Default::default(),
 7095            _subscriptions: vec![
 7096                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7097                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7098            ],
 7099            client,
 7100        }
 7101    }
 7102
 7103    pub fn update_followers(
 7104        &self,
 7105        project_id: Option<u64>,
 7106        update: proto::update_followers::Variant,
 7107        cx: &App,
 7108    ) -> Option<()> {
 7109        let active_call = ActiveCall::try_global(cx)?;
 7110        let room_id = active_call.read(cx).room()?.read(cx).id();
 7111        self.client
 7112            .send(proto::UpdateFollowers {
 7113                room_id,
 7114                project_id,
 7115                variant: Some(update),
 7116            })
 7117            .log_err()
 7118    }
 7119
 7120    pub async fn handle_follow(
 7121        this: Entity<Self>,
 7122        envelope: TypedEnvelope<proto::Follow>,
 7123        mut cx: AsyncApp,
 7124    ) -> Result<proto::FollowResponse> {
 7125        this.update(&mut cx, |this, cx| {
 7126            let follower = Follower {
 7127                project_id: envelope.payload.project_id,
 7128                peer_id: envelope.original_sender_id()?,
 7129            };
 7130
 7131            let mut response = proto::FollowResponse::default();
 7132            this.workspaces.retain(|workspace| {
 7133                workspace
 7134                    .update(cx, |workspace, window, cx| {
 7135                        let handler_response =
 7136                            workspace.handle_follow(follower.project_id, window, cx);
 7137                        if let Some(active_view) = handler_response.active_view
 7138                            && workspace.project.read(cx).remote_id() == follower.project_id
 7139                        {
 7140                            response.active_view = Some(active_view)
 7141                        }
 7142                    })
 7143                    .is_ok()
 7144            });
 7145
 7146            Ok(response)
 7147        })?
 7148    }
 7149
 7150    async fn handle_update_followers(
 7151        this: Entity<Self>,
 7152        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7153        mut cx: AsyncApp,
 7154    ) -> Result<()> {
 7155        let leader_id = envelope.original_sender_id()?;
 7156        let update = envelope.payload;
 7157
 7158        this.update(&mut cx, |this, cx| {
 7159            this.workspaces.retain(|workspace| {
 7160                workspace
 7161                    .update(cx, |workspace, window, cx| {
 7162                        let project_id = workspace.project.read(cx).remote_id();
 7163                        if update.project_id != project_id && update.project_id.is_some() {
 7164                            return;
 7165                        }
 7166                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7167                    })
 7168                    .is_ok()
 7169            });
 7170            Ok(())
 7171        })?
 7172    }
 7173
 7174    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7175        &self.workspaces
 7176    }
 7177}
 7178
 7179impl ViewId {
 7180    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7181        Ok(Self {
 7182            creator: message
 7183                .creator
 7184                .map(CollaboratorId::PeerId)
 7185                .context("creator is missing")?,
 7186            id: message.id,
 7187        })
 7188    }
 7189
 7190    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7191        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7192            Some(proto::ViewId {
 7193                creator: Some(peer_id),
 7194                id: self.id,
 7195            })
 7196        } else {
 7197            None
 7198        }
 7199    }
 7200}
 7201
 7202impl FollowerState {
 7203    fn pane(&self) -> &Entity<Pane> {
 7204        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7205    }
 7206}
 7207
 7208pub trait WorkspaceHandle {
 7209    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7210}
 7211
 7212impl WorkspaceHandle for Entity<Workspace> {
 7213    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7214        self.read(cx)
 7215            .worktrees(cx)
 7216            .flat_map(|worktree| {
 7217                let worktree_id = worktree.read(cx).id();
 7218                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7219                    worktree_id,
 7220                    path: f.path.clone(),
 7221                })
 7222            })
 7223            .collect::<Vec<_>>()
 7224    }
 7225}
 7226
 7227pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7228    DB.last_workspace().await.log_err().flatten()
 7229}
 7230
 7231pub fn last_session_workspace_locations(
 7232    last_session_id: &str,
 7233    last_session_window_stack: Option<Vec<WindowId>>,
 7234) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7235    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7236        .log_err()
 7237}
 7238
 7239actions!(
 7240    collab,
 7241    [
 7242        /// Opens the channel notes for the current call.
 7243        ///
 7244        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7245        /// channel in the collab panel.
 7246        ///
 7247        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7248        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7249        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7250        OpenChannelNotes,
 7251        /// Mutes your microphone.
 7252        Mute,
 7253        /// Deafens yourself (mute both microphone and speakers).
 7254        Deafen,
 7255        /// Leaves the current call.
 7256        LeaveCall,
 7257        /// Shares the current project with collaborators.
 7258        ShareProject,
 7259        /// Shares your screen with collaborators.
 7260        ScreenShare,
 7261        /// Copies the current room name and session id for debugging purposes.
 7262        CopyRoomId,
 7263    ]
 7264);
 7265actions!(
 7266    zed,
 7267    [
 7268        /// Opens the Zed log file.
 7269        OpenLog,
 7270        /// Reveals the Zed log file in the system file manager.
 7271        RevealLogInFileManager
 7272    ]
 7273);
 7274
 7275async fn join_channel_internal(
 7276    channel_id: ChannelId,
 7277    app_state: &Arc<AppState>,
 7278    requesting_window: Option<WindowHandle<Workspace>>,
 7279    active_call: &Entity<ActiveCall>,
 7280    cx: &mut AsyncApp,
 7281) -> Result<bool> {
 7282    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7283        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7284            return (false, None);
 7285        };
 7286
 7287        let already_in_channel = room.channel_id() == Some(channel_id);
 7288        let should_prompt = room.is_sharing_project()
 7289            && !room.remote_participants().is_empty()
 7290            && !already_in_channel;
 7291        let open_room = if already_in_channel {
 7292            active_call.room().cloned()
 7293        } else {
 7294            None
 7295        };
 7296        (should_prompt, open_room)
 7297    })?;
 7298
 7299    if let Some(room) = open_room {
 7300        let task = room.update(cx, |room, cx| {
 7301            if let Some((project, host)) = room.most_active_project(cx) {
 7302                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7303            }
 7304
 7305            None
 7306        })?;
 7307        if let Some(task) = task {
 7308            task.await?;
 7309        }
 7310        return anyhow::Ok(true);
 7311    }
 7312
 7313    if should_prompt {
 7314        if let Some(workspace) = requesting_window {
 7315            let answer = workspace
 7316                .update(cx, |_, window, cx| {
 7317                    window.prompt(
 7318                        PromptLevel::Warning,
 7319                        "Do you want to switch channels?",
 7320                        Some("Leaving this call will unshare your current project."),
 7321                        &["Yes, Join Channel", "Cancel"],
 7322                        cx,
 7323                    )
 7324                })?
 7325                .await;
 7326
 7327            if answer == Ok(1) {
 7328                return Ok(false);
 7329            }
 7330        } else {
 7331            return Ok(false); // unreachable!() hopefully
 7332        }
 7333    }
 7334
 7335    let client = cx.update(|cx| active_call.read(cx).client())?;
 7336
 7337    let mut client_status = client.status();
 7338
 7339    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7340    'outer: loop {
 7341        let Some(status) = client_status.recv().await else {
 7342            anyhow::bail!("error connecting");
 7343        };
 7344
 7345        match status {
 7346            Status::Connecting
 7347            | Status::Authenticating
 7348            | Status::Authenticated
 7349            | Status::Reconnecting
 7350            | Status::Reauthenticating
 7351            | Status::Reauthenticated => continue,
 7352            Status::Connected { .. } => break 'outer,
 7353            Status::SignedOut | Status::AuthenticationError => {
 7354                return Err(ErrorCode::SignedOut.into());
 7355            }
 7356            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7357            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7358                return Err(ErrorCode::Disconnected.into());
 7359            }
 7360        }
 7361    }
 7362
 7363    let room = active_call
 7364        .update(cx, |active_call, cx| {
 7365            active_call.join_channel(channel_id, cx)
 7366        })?
 7367        .await?;
 7368
 7369    let Some(room) = room else {
 7370        return anyhow::Ok(true);
 7371    };
 7372
 7373    room.update(cx, |room, _| room.room_update_completed())?
 7374        .await;
 7375
 7376    let task = room.update(cx, |room, cx| {
 7377        if let Some((project, host)) = room.most_active_project(cx) {
 7378            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7379        }
 7380
 7381        // If you are the first to join a channel, see if you should share your project.
 7382        if room.remote_participants().is_empty()
 7383            && !room.local_participant_is_guest()
 7384            && let Some(workspace) = requesting_window
 7385        {
 7386            let project = workspace.update(cx, |workspace, _, cx| {
 7387                let project = workspace.project.read(cx);
 7388
 7389                if !CallSettings::get_global(cx).share_on_join {
 7390                    return None;
 7391                }
 7392
 7393                if (project.is_local() || project.is_via_remote_server())
 7394                    && project.visible_worktrees(cx).any(|tree| {
 7395                        tree.read(cx)
 7396                            .root_entry()
 7397                            .is_some_and(|entry| entry.is_dir())
 7398                    })
 7399                {
 7400                    Some(workspace.project.clone())
 7401                } else {
 7402                    None
 7403                }
 7404            });
 7405            if let Ok(Some(project)) = project {
 7406                return Some(cx.spawn(async move |room, cx| {
 7407                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7408                        .await?;
 7409                    Ok(())
 7410                }));
 7411            }
 7412        }
 7413
 7414        None
 7415    })?;
 7416    if let Some(task) = task {
 7417        task.await?;
 7418        return anyhow::Ok(true);
 7419    }
 7420    anyhow::Ok(false)
 7421}
 7422
 7423pub fn join_channel(
 7424    channel_id: ChannelId,
 7425    app_state: Arc<AppState>,
 7426    requesting_window: Option<WindowHandle<Workspace>>,
 7427    cx: &mut App,
 7428) -> Task<Result<()>> {
 7429    let active_call = ActiveCall::global(cx);
 7430    cx.spawn(async move |cx| {
 7431        let result =
 7432            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7433                .await;
 7434
 7435        // join channel succeeded, and opened a window
 7436        if matches!(result, Ok(true)) {
 7437            return anyhow::Ok(());
 7438        }
 7439
 7440        // find an existing workspace to focus and show call controls
 7441        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7442        if active_window.is_none() {
 7443            // no open workspaces, make one to show the error in (blergh)
 7444            let (window_handle, _) = cx
 7445                .update(|cx| {
 7446                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7447                })?
 7448                .await?;
 7449
 7450            if result.is_ok() {
 7451                cx.update(|cx| {
 7452                    cx.dispatch_action(&OpenChannelNotes);
 7453                })
 7454                .log_err();
 7455            }
 7456
 7457            active_window = Some(window_handle);
 7458        }
 7459
 7460        if let Err(err) = result {
 7461            log::error!("failed to join channel: {}", err);
 7462            if let Some(active_window) = active_window {
 7463                active_window
 7464                    .update(cx, |_, window, cx| {
 7465                        let detail: SharedString = match err.error_code() {
 7466                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7467                            ErrorCode::UpgradeRequired => concat!(
 7468                                "Your are running an unsupported version of Zed. ",
 7469                                "Please update to continue."
 7470                            )
 7471                            .into(),
 7472                            ErrorCode::NoSuchChannel => concat!(
 7473                                "No matching channel was found. ",
 7474                                "Please check the link and try again."
 7475                            )
 7476                            .into(),
 7477                            ErrorCode::Forbidden => concat!(
 7478                                "This channel is private, and you do not have access. ",
 7479                                "Please ask someone to add you and try again."
 7480                            )
 7481                            .into(),
 7482                            ErrorCode::Disconnected => {
 7483                                "Please check your internet connection and try again.".into()
 7484                            }
 7485                            _ => format!("{}\n\nPlease try again.", err).into(),
 7486                        };
 7487                        window.prompt(
 7488                            PromptLevel::Critical,
 7489                            "Failed to join channel",
 7490                            Some(&detail),
 7491                            &["Ok"],
 7492                            cx,
 7493                        )
 7494                    })?
 7495                    .await
 7496                    .ok();
 7497            }
 7498        }
 7499
 7500        // return ok, we showed the error to the user.
 7501        anyhow::Ok(())
 7502    })
 7503}
 7504
 7505pub async fn get_any_active_workspace(
 7506    app_state: Arc<AppState>,
 7507    mut cx: AsyncApp,
 7508) -> anyhow::Result<WindowHandle<Workspace>> {
 7509    // find an existing workspace to focus and show call controls
 7510    let active_window = activate_any_workspace_window(&mut cx);
 7511    if active_window.is_none() {
 7512        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7513            .await?;
 7514    }
 7515    activate_any_workspace_window(&mut cx).context("could not open zed")
 7516}
 7517
 7518fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7519    cx.update(|cx| {
 7520        if let Some(workspace_window) = cx
 7521            .active_window()
 7522            .and_then(|window| window.downcast::<Workspace>())
 7523        {
 7524            return Some(workspace_window);
 7525        }
 7526
 7527        for window in cx.windows() {
 7528            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7529                workspace_window
 7530                    .update(cx, |_, window, _| window.activate_window())
 7531                    .ok();
 7532                return Some(workspace_window);
 7533            }
 7534        }
 7535        None
 7536    })
 7537    .ok()
 7538    .flatten()
 7539}
 7540
 7541pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7542    cx.windows()
 7543        .into_iter()
 7544        .filter_map(|window| window.downcast::<Workspace>())
 7545        .filter(|workspace| {
 7546            workspace
 7547                .read(cx)
 7548                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7549        })
 7550        .collect()
 7551}
 7552
 7553#[derive(Default)]
 7554pub struct OpenOptions {
 7555    pub visible: Option<OpenVisible>,
 7556    pub focus: Option<bool>,
 7557    pub open_new_workspace: Option<bool>,
 7558    pub prefer_focused_window: bool,
 7559    pub replace_window: Option<WindowHandle<Workspace>>,
 7560    pub env: Option<HashMap<String, String>>,
 7561}
 7562
 7563#[allow(clippy::type_complexity)]
 7564pub fn open_paths(
 7565    abs_paths: &[PathBuf],
 7566    app_state: Arc<AppState>,
 7567    open_options: OpenOptions,
 7568    cx: &mut App,
 7569) -> Task<
 7570    anyhow::Result<(
 7571        WindowHandle<Workspace>,
 7572        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7573    )>,
 7574> {
 7575    let abs_paths = abs_paths.to_vec();
 7576    let mut existing = None;
 7577    let mut best_match = None;
 7578    let mut open_visible = OpenVisible::All;
 7579    #[cfg(target_os = "windows")]
 7580    let wsl_path = abs_paths
 7581        .iter()
 7582        .find_map(|p| util::paths::WslPath::from_path(p));
 7583
 7584    cx.spawn(async move |cx| {
 7585        if open_options.open_new_workspace != Some(true) {
 7586            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7587            let all_metadatas = futures::future::join_all(all_paths)
 7588                .await
 7589                .into_iter()
 7590                .filter_map(|result| result.ok().flatten())
 7591                .collect::<Vec<_>>();
 7592
 7593            cx.update(|cx| {
 7594                for window in local_workspace_windows(cx) {
 7595                    if let Ok(workspace) = window.read(cx) {
 7596                        let m = workspace.project.read(cx).visibility_for_paths(
 7597                            &abs_paths,
 7598                            &all_metadatas,
 7599                            open_options.open_new_workspace == None,
 7600                            cx,
 7601                        );
 7602                        if m > best_match {
 7603                            existing = Some(window);
 7604                            best_match = m;
 7605                        } else if best_match.is_none()
 7606                            && open_options.open_new_workspace == Some(false)
 7607                        {
 7608                            existing = Some(window)
 7609                        }
 7610                    }
 7611                }
 7612            })?;
 7613
 7614            if open_options.open_new_workspace.is_none()
 7615                && (existing.is_none() || open_options.prefer_focused_window)
 7616                && all_metadatas.iter().all(|file| !file.is_dir)
 7617            {
 7618                cx.update(|cx| {
 7619                    if let Some(window) = cx
 7620                        .active_window()
 7621                        .and_then(|window| window.downcast::<Workspace>())
 7622                        && let Ok(workspace) = window.read(cx)
 7623                    {
 7624                        let project = workspace.project().read(cx);
 7625                        if project.is_local() && !project.is_via_collab() {
 7626                            existing = Some(window);
 7627                            open_visible = OpenVisible::None;
 7628                            return;
 7629                        }
 7630                    }
 7631                    for window in local_workspace_windows(cx) {
 7632                        if let Ok(workspace) = window.read(cx) {
 7633                            let project = workspace.project().read(cx);
 7634                            if project.is_via_collab() {
 7635                                continue;
 7636                            }
 7637                            existing = Some(window);
 7638                            open_visible = OpenVisible::None;
 7639                            break;
 7640                        }
 7641                    }
 7642                })?;
 7643            }
 7644        }
 7645
 7646        let result = if let Some(existing) = existing {
 7647            let open_task = existing
 7648                .update(cx, |workspace, window, cx| {
 7649                    window.activate_window();
 7650                    workspace.open_paths(
 7651                        abs_paths,
 7652                        OpenOptions {
 7653                            visible: Some(open_visible),
 7654                            ..Default::default()
 7655                        },
 7656                        None,
 7657                        window,
 7658                        cx,
 7659                    )
 7660                })?
 7661                .await;
 7662
 7663            _ = existing.update(cx, |workspace, _, cx| {
 7664                for item in open_task.iter().flatten() {
 7665                    if let Err(e) = item {
 7666                        workspace.show_error(&e, cx);
 7667                    }
 7668                }
 7669            });
 7670
 7671            Ok((existing, open_task))
 7672        } else {
 7673            cx.update(move |cx| {
 7674                Workspace::new_local(
 7675                    abs_paths,
 7676                    app_state.clone(),
 7677                    open_options.replace_window,
 7678                    open_options.env,
 7679                    cx,
 7680                )
 7681            })?
 7682            .await
 7683        };
 7684
 7685        #[cfg(target_os = "windows")]
 7686        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 7687            && let Ok((workspace, _)) = &result
 7688        {
 7689            workspace
 7690                .update(cx, move |workspace, _window, cx| {
 7691                    struct OpenInWsl;
 7692                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 7693                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 7694                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 7695                        cx.new(move |cx| {
 7696                            MessageNotification::new(msg, cx)
 7697                                .primary_message("Open in WSL")
 7698                                .primary_icon(IconName::FolderOpen)
 7699                                .primary_on_click(move |window, cx| {
 7700                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 7701                                            distro: remote::WslConnectionOptions {
 7702                                                    distro_name: distro.clone(),
 7703                                                user: None,
 7704                                            },
 7705                                            paths: vec![path.clone().into()],
 7706                                        }), cx)
 7707                                })
 7708                        })
 7709                    });
 7710                })
 7711                .unwrap();
 7712        };
 7713        result
 7714    })
 7715}
 7716
 7717pub fn open_new(
 7718    open_options: OpenOptions,
 7719    app_state: Arc<AppState>,
 7720    cx: &mut App,
 7721    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7722) -> Task<anyhow::Result<()>> {
 7723    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7724    cx.spawn(async move |cx| {
 7725        let (workspace, opened_paths) = task.await?;
 7726        workspace.update(cx, |workspace, window, cx| {
 7727            if opened_paths.is_empty() {
 7728                init(workspace, window, cx)
 7729            }
 7730        })?;
 7731        Ok(())
 7732    })
 7733}
 7734
 7735pub fn create_and_open_local_file(
 7736    path: &'static Path,
 7737    window: &mut Window,
 7738    cx: &mut Context<Workspace>,
 7739    default_content: impl 'static + Send + FnOnce() -> Rope,
 7740) -> Task<Result<Box<dyn ItemHandle>>> {
 7741    cx.spawn_in(window, async move |workspace, cx| {
 7742        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7743        if !fs.is_file(path).await {
 7744            fs.create_file(path, Default::default()).await?;
 7745            fs.save(path, &default_content(), Default::default())
 7746                .await?;
 7747        }
 7748
 7749        let mut items = workspace
 7750            .update_in(cx, |workspace, window, cx| {
 7751                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7752                    workspace.open_paths(
 7753                        vec![path.to_path_buf()],
 7754                        OpenOptions {
 7755                            visible: Some(OpenVisible::None),
 7756                            ..Default::default()
 7757                        },
 7758                        None,
 7759                        window,
 7760                        cx,
 7761                    )
 7762                })
 7763            })?
 7764            .await?
 7765            .await;
 7766
 7767        let item = items.pop().flatten();
 7768        item.with_context(|| format!("path {path:?} is not a file"))?
 7769    })
 7770}
 7771
 7772pub fn open_remote_project_with_new_connection(
 7773    window: WindowHandle<Workspace>,
 7774    remote_connection: Arc<dyn RemoteConnection>,
 7775    cancel_rx: oneshot::Receiver<()>,
 7776    delegate: Arc<dyn RemoteClientDelegate>,
 7777    app_state: Arc<AppState>,
 7778    paths: Vec<PathBuf>,
 7779    cx: &mut App,
 7780) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7781    cx.spawn(async move |cx| {
 7782        let (workspace_id, serialized_workspace) =
 7783            serialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 7784                .await?;
 7785
 7786        let session = match cx
 7787            .update(|cx| {
 7788                remote::RemoteClient::new(
 7789                    ConnectionIdentifier::Workspace(workspace_id.0),
 7790                    remote_connection,
 7791                    cancel_rx,
 7792                    delegate,
 7793                    cx,
 7794                )
 7795            })?
 7796            .await?
 7797        {
 7798            Some(result) => result,
 7799            None => return Ok(Vec::new()),
 7800        };
 7801
 7802        let project = cx.update(|cx| {
 7803            project::Project::remote(
 7804                session,
 7805                app_state.client.clone(),
 7806                app_state.node_runtime.clone(),
 7807                app_state.user_store.clone(),
 7808                app_state.languages.clone(),
 7809                app_state.fs.clone(),
 7810                cx,
 7811            )
 7812        })?;
 7813
 7814        open_remote_project_inner(
 7815            project,
 7816            paths,
 7817            workspace_id,
 7818            serialized_workspace,
 7819            app_state,
 7820            window,
 7821            cx,
 7822        )
 7823        .await
 7824    })
 7825}
 7826
 7827pub fn open_remote_project_with_existing_connection(
 7828    connection_options: RemoteConnectionOptions,
 7829    project: Entity<Project>,
 7830    paths: Vec<PathBuf>,
 7831    app_state: Arc<AppState>,
 7832    window: WindowHandle<Workspace>,
 7833    cx: &mut AsyncApp,
 7834) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7835    cx.spawn(async move |cx| {
 7836        let (workspace_id, serialized_workspace) =
 7837            serialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7838
 7839        open_remote_project_inner(
 7840            project,
 7841            paths,
 7842            workspace_id,
 7843            serialized_workspace,
 7844            app_state,
 7845            window,
 7846            cx,
 7847        )
 7848        .await
 7849    })
 7850}
 7851
 7852async fn open_remote_project_inner(
 7853    project: Entity<Project>,
 7854    paths: Vec<PathBuf>,
 7855    workspace_id: WorkspaceId,
 7856    serialized_workspace: Option<SerializedWorkspace>,
 7857    app_state: Arc<AppState>,
 7858    window: WindowHandle<Workspace>,
 7859    cx: &mut AsyncApp,
 7860) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 7861    let toolchains = DB.toolchains(workspace_id).await?;
 7862    for (toolchain, worktree_id, path) in toolchains {
 7863        project
 7864            .update(cx, |this, cx| {
 7865                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7866            })?
 7867            .await;
 7868    }
 7869    let mut project_paths_to_open = vec![];
 7870    let mut project_path_errors = vec![];
 7871
 7872    for path in paths {
 7873        let result = cx
 7874            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7875            .await;
 7876        match result {
 7877            Ok((_, project_path)) => {
 7878                project_paths_to_open.push((path.clone(), Some(project_path)));
 7879            }
 7880            Err(error) => {
 7881                project_path_errors.push(error);
 7882            }
 7883        };
 7884    }
 7885
 7886    if project_paths_to_open.is_empty() {
 7887        return Err(project_path_errors.pop().context("no paths given")?);
 7888    }
 7889
 7890    if let Some(detach_session_task) = window
 7891        .update(cx, |_workspace, window, cx| {
 7892            cx.spawn_in(window, async move |this, cx| {
 7893                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7894            })
 7895        })
 7896        .ok()
 7897    {
 7898        detach_session_task.await.ok();
 7899    }
 7900
 7901    cx.update_window(window.into(), |_, window, cx| {
 7902        window.replace_root(cx, |window, cx| {
 7903            telemetry::event!("SSH Project Opened");
 7904
 7905            let mut workspace =
 7906                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7907            workspace.update_history(cx);
 7908
 7909            if let Some(ref serialized) = serialized_workspace {
 7910                workspace.centered_layout = serialized.centered_layout;
 7911            }
 7912
 7913            workspace
 7914        });
 7915    })?;
 7916
 7917    let items = window
 7918        .update(cx, |_, window, cx| {
 7919            window.activate_window();
 7920            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7921        })?
 7922        .await?;
 7923
 7924    window.update(cx, |workspace, _, cx| {
 7925        for error in project_path_errors {
 7926            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7927                if let Some(path) = error.error_tag("path") {
 7928                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7929                }
 7930            } else {
 7931                workspace.show_error(&error, cx)
 7932            }
 7933        }
 7934    })?;
 7935
 7936    Ok(items.into_iter().map(|item| item?.ok()).collect())
 7937}
 7938
 7939fn serialize_remote_project(
 7940    connection_options: RemoteConnectionOptions,
 7941    paths: Vec<PathBuf>,
 7942    cx: &AsyncApp,
 7943) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 7944    cx.background_spawn(async move {
 7945        let remote_connection_id = persistence::DB
 7946            .get_or_create_remote_connection(connection_options)
 7947            .await?;
 7948
 7949        let serialized_workspace =
 7950            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 7951
 7952        let workspace_id = if let Some(workspace_id) =
 7953            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7954        {
 7955            workspace_id
 7956        } else {
 7957            persistence::DB.next_id().await?
 7958        };
 7959
 7960        Ok((workspace_id, serialized_workspace))
 7961    })
 7962}
 7963
 7964pub fn join_in_room_project(
 7965    project_id: u64,
 7966    follow_user_id: u64,
 7967    app_state: Arc<AppState>,
 7968    cx: &mut App,
 7969) -> Task<Result<()>> {
 7970    let windows = cx.windows();
 7971    cx.spawn(async move |cx| {
 7972        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7973            window_handle
 7974                .downcast::<Workspace>()
 7975                .and_then(|window_handle| {
 7976                    window_handle
 7977                        .update(cx, |workspace, _window, cx| {
 7978                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7979                                Some(window_handle)
 7980                            } else {
 7981                                None
 7982                            }
 7983                        })
 7984                        .unwrap_or(None)
 7985                })
 7986        });
 7987
 7988        let workspace = if let Some(existing_workspace) = existing_workspace {
 7989            existing_workspace
 7990        } else {
 7991            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7992            let room = active_call
 7993                .read_with(cx, |call, _| call.room().cloned())?
 7994                .context("not in a call")?;
 7995            let project = room
 7996                .update(cx, |room, cx| {
 7997                    room.join_project(
 7998                        project_id,
 7999                        app_state.languages.clone(),
 8000                        app_state.fs.clone(),
 8001                        cx,
 8002                    )
 8003                })?
 8004                .await?;
 8005
 8006            let window_bounds_override = window_bounds_env_override();
 8007            cx.update(|cx| {
 8008                let mut options = (app_state.build_window_options)(None, cx);
 8009                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8010                cx.open_window(options, |window, cx| {
 8011                    cx.new(|cx| {
 8012                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8013                    })
 8014                })
 8015            })??
 8016        };
 8017
 8018        workspace.update(cx, |workspace, window, cx| {
 8019            cx.activate(true);
 8020            window.activate_window();
 8021
 8022            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8023                let follow_peer_id = room
 8024                    .read(cx)
 8025                    .remote_participants()
 8026                    .iter()
 8027                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8028                    .map(|(_, p)| p.peer_id)
 8029                    .or_else(|| {
 8030                        // If we couldn't follow the given user, follow the host instead.
 8031                        let collaborator = workspace
 8032                            .project()
 8033                            .read(cx)
 8034                            .collaborators()
 8035                            .values()
 8036                            .find(|collaborator| collaborator.is_host)?;
 8037                        Some(collaborator.peer_id)
 8038                    });
 8039
 8040                if let Some(follow_peer_id) = follow_peer_id {
 8041                    workspace.follow(follow_peer_id, window, cx);
 8042                }
 8043            }
 8044        })?;
 8045
 8046        anyhow::Ok(())
 8047    })
 8048}
 8049
 8050pub fn reload(cx: &mut App) {
 8051    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8052    let mut workspace_windows = cx
 8053        .windows()
 8054        .into_iter()
 8055        .filter_map(|window| window.downcast::<Workspace>())
 8056        .collect::<Vec<_>>();
 8057
 8058    // If multiple windows have unsaved changes, and need a save prompt,
 8059    // prompt in the active window before switching to a different window.
 8060    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8061
 8062    let mut prompt = None;
 8063    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8064        prompt = window
 8065            .update(cx, |_, window, cx| {
 8066                window.prompt(
 8067                    PromptLevel::Info,
 8068                    "Are you sure you want to restart?",
 8069                    None,
 8070                    &["Restart", "Cancel"],
 8071                    cx,
 8072                )
 8073            })
 8074            .ok();
 8075    }
 8076
 8077    cx.spawn(async move |cx| {
 8078        if let Some(prompt) = prompt {
 8079            let answer = prompt.await?;
 8080            if answer != 0 {
 8081                return Ok(());
 8082            }
 8083        }
 8084
 8085        // If the user cancels any save prompt, then keep the app open.
 8086        for window in workspace_windows {
 8087            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8088                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8089            }) && !should_close.await?
 8090            {
 8091                return Ok(());
 8092            }
 8093        }
 8094        cx.update(|cx| cx.restart())
 8095    })
 8096    .detach_and_log_err(cx);
 8097}
 8098
 8099fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8100    let mut parts = value.split(',');
 8101    let x: usize = parts.next()?.parse().ok()?;
 8102    let y: usize = parts.next()?.parse().ok()?;
 8103    Some(point(px(x as f32), px(y as f32)))
 8104}
 8105
 8106fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8107    let mut parts = value.split(',');
 8108    let width: usize = parts.next()?.parse().ok()?;
 8109    let height: usize = parts.next()?.parse().ok()?;
 8110    Some(size(px(width as f32), px(height as f32)))
 8111}
 8112
 8113/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8114pub fn client_side_decorations(
 8115    element: impl IntoElement,
 8116    window: &mut Window,
 8117    cx: &mut App,
 8118) -> Stateful<Div> {
 8119    const BORDER_SIZE: Pixels = px(1.0);
 8120    let decorations = window.window_decorations();
 8121
 8122    match decorations {
 8123        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8124        Decorations::Server => window.set_client_inset(px(0.0)),
 8125    }
 8126
 8127    struct GlobalResizeEdge(ResizeEdge);
 8128    impl Global for GlobalResizeEdge {}
 8129
 8130    div()
 8131        .id("window-backdrop")
 8132        .bg(transparent_black())
 8133        .map(|div| match decorations {
 8134            Decorations::Server => div,
 8135            Decorations::Client { tiling, .. } => div
 8136                .when(!(tiling.top || tiling.right), |div| {
 8137                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8138                })
 8139                .when(!(tiling.top || tiling.left), |div| {
 8140                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8141                })
 8142                .when(!(tiling.bottom || tiling.right), |div| {
 8143                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8144                })
 8145                .when(!(tiling.bottom || tiling.left), |div| {
 8146                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8147                })
 8148                .when(!tiling.top, |div| {
 8149                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8150                })
 8151                .when(!tiling.bottom, |div| {
 8152                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8153                })
 8154                .when(!tiling.left, |div| {
 8155                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8156                })
 8157                .when(!tiling.right, |div| {
 8158                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8159                })
 8160                .on_mouse_move(move |e, window, cx| {
 8161                    let size = window.window_bounds().get_bounds().size;
 8162                    let pos = e.position;
 8163
 8164                    let new_edge =
 8165                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8166
 8167                    let edge = cx.try_global::<GlobalResizeEdge>();
 8168                    if new_edge != edge.map(|edge| edge.0) {
 8169                        window
 8170                            .window_handle()
 8171                            .update(cx, |workspace, _, cx| {
 8172                                cx.notify(workspace.entity_id());
 8173                            })
 8174                            .ok();
 8175                    }
 8176                })
 8177                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8178                    let size = window.window_bounds().get_bounds().size;
 8179                    let pos = e.position;
 8180
 8181                    let edge = match resize_edge(
 8182                        pos,
 8183                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8184                        size,
 8185                        tiling,
 8186                    ) {
 8187                        Some(value) => value,
 8188                        None => return,
 8189                    };
 8190
 8191                    window.start_window_resize(edge);
 8192                }),
 8193        })
 8194        .size_full()
 8195        .child(
 8196            div()
 8197                .cursor(CursorStyle::Arrow)
 8198                .map(|div| match decorations {
 8199                    Decorations::Server => div,
 8200                    Decorations::Client { tiling } => div
 8201                        .border_color(cx.theme().colors().border)
 8202                        .when(!(tiling.top || tiling.right), |div| {
 8203                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8204                        })
 8205                        .when(!(tiling.top || tiling.left), |div| {
 8206                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8207                        })
 8208                        .when(!(tiling.bottom || tiling.right), |div| {
 8209                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8210                        })
 8211                        .when(!(tiling.bottom || tiling.left), |div| {
 8212                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8213                        })
 8214                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8215                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8216                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8217                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8218                        .when(!tiling.is_tiled(), |div| {
 8219                            div.shadow(vec![gpui::BoxShadow {
 8220                                color: Hsla {
 8221                                    h: 0.,
 8222                                    s: 0.,
 8223                                    l: 0.,
 8224                                    a: 0.4,
 8225                                },
 8226                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8227                                spread_radius: px(0.),
 8228                                offset: point(px(0.0), px(0.0)),
 8229                            }])
 8230                        }),
 8231                })
 8232                .on_mouse_move(|_e, _, cx| {
 8233                    cx.stop_propagation();
 8234                })
 8235                .size_full()
 8236                .child(element),
 8237        )
 8238        .map(|div| match decorations {
 8239            Decorations::Server => div,
 8240            Decorations::Client { tiling, .. } => div.child(
 8241                canvas(
 8242                    |_bounds, window, _| {
 8243                        window.insert_hitbox(
 8244                            Bounds::new(
 8245                                point(px(0.0), px(0.0)),
 8246                                window.window_bounds().get_bounds().size,
 8247                            ),
 8248                            HitboxBehavior::Normal,
 8249                        )
 8250                    },
 8251                    move |_bounds, hitbox, window, cx| {
 8252                        let mouse = window.mouse_position();
 8253                        let size = window.window_bounds().get_bounds().size;
 8254                        let Some(edge) =
 8255                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8256                        else {
 8257                            return;
 8258                        };
 8259                        cx.set_global(GlobalResizeEdge(edge));
 8260                        window.set_cursor_style(
 8261                            match edge {
 8262                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8263                                ResizeEdge::Left | ResizeEdge::Right => {
 8264                                    CursorStyle::ResizeLeftRight
 8265                                }
 8266                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8267                                    CursorStyle::ResizeUpLeftDownRight
 8268                                }
 8269                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8270                                    CursorStyle::ResizeUpRightDownLeft
 8271                                }
 8272                            },
 8273                            &hitbox,
 8274                        );
 8275                    },
 8276                )
 8277                .size_full()
 8278                .absolute(),
 8279            ),
 8280        })
 8281}
 8282
 8283fn resize_edge(
 8284    pos: Point<Pixels>,
 8285    shadow_size: Pixels,
 8286    window_size: Size<Pixels>,
 8287    tiling: Tiling,
 8288) -> Option<ResizeEdge> {
 8289    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8290    if bounds.contains(&pos) {
 8291        return None;
 8292    }
 8293
 8294    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8295    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8296    if !tiling.top && top_left_bounds.contains(&pos) {
 8297        return Some(ResizeEdge::TopLeft);
 8298    }
 8299
 8300    let top_right_bounds = Bounds::new(
 8301        Point::new(window_size.width - corner_size.width, px(0.)),
 8302        corner_size,
 8303    );
 8304    if !tiling.top && top_right_bounds.contains(&pos) {
 8305        return Some(ResizeEdge::TopRight);
 8306    }
 8307
 8308    let bottom_left_bounds = Bounds::new(
 8309        Point::new(px(0.), window_size.height - corner_size.height),
 8310        corner_size,
 8311    );
 8312    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8313        return Some(ResizeEdge::BottomLeft);
 8314    }
 8315
 8316    let bottom_right_bounds = Bounds::new(
 8317        Point::new(
 8318            window_size.width - corner_size.width,
 8319            window_size.height - corner_size.height,
 8320        ),
 8321        corner_size,
 8322    );
 8323    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8324        return Some(ResizeEdge::BottomRight);
 8325    }
 8326
 8327    if !tiling.top && pos.y < shadow_size {
 8328        Some(ResizeEdge::Top)
 8329    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8330        Some(ResizeEdge::Bottom)
 8331    } else if !tiling.left && pos.x < shadow_size {
 8332        Some(ResizeEdge::Left)
 8333    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8334        Some(ResizeEdge::Right)
 8335    } else {
 8336        None
 8337    }
 8338}
 8339
 8340fn join_pane_into_active(
 8341    active_pane: &Entity<Pane>,
 8342    pane: &Entity<Pane>,
 8343    window: &mut Window,
 8344    cx: &mut App,
 8345) {
 8346    if pane == active_pane {
 8347    } else if pane.read(cx).items_len() == 0 {
 8348        pane.update(cx, |_, cx| {
 8349            cx.emit(pane::Event::Remove {
 8350                focus_on_pane: None,
 8351            });
 8352        })
 8353    } else {
 8354        move_all_items(pane, active_pane, window, cx);
 8355    }
 8356}
 8357
 8358fn move_all_items(
 8359    from_pane: &Entity<Pane>,
 8360    to_pane: &Entity<Pane>,
 8361    window: &mut Window,
 8362    cx: &mut App,
 8363) {
 8364    let destination_is_different = from_pane != to_pane;
 8365    let mut moved_items = 0;
 8366    for (item_ix, item_handle) in from_pane
 8367        .read(cx)
 8368        .items()
 8369        .enumerate()
 8370        .map(|(ix, item)| (ix, item.clone()))
 8371        .collect::<Vec<_>>()
 8372    {
 8373        let ix = item_ix - moved_items;
 8374        if destination_is_different {
 8375            // Close item from previous pane
 8376            from_pane.update(cx, |source, cx| {
 8377                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8378            });
 8379            moved_items += 1;
 8380        }
 8381
 8382        // This automatically removes duplicate items in the pane
 8383        to_pane.update(cx, |destination, cx| {
 8384            destination.add_item(item_handle, true, true, None, window, cx);
 8385            window.focus(&destination.focus_handle(cx))
 8386        });
 8387    }
 8388}
 8389
 8390pub fn move_item(
 8391    source: &Entity<Pane>,
 8392    destination: &Entity<Pane>,
 8393    item_id_to_move: EntityId,
 8394    destination_index: usize,
 8395    activate: bool,
 8396    window: &mut Window,
 8397    cx: &mut App,
 8398) {
 8399    let Some((item_ix, item_handle)) = source
 8400        .read(cx)
 8401        .items()
 8402        .enumerate()
 8403        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8404        .map(|(ix, item)| (ix, item.clone()))
 8405    else {
 8406        // Tab was closed during drag
 8407        return;
 8408    };
 8409
 8410    if source != destination {
 8411        // Close item from previous pane
 8412        source.update(cx, |source, cx| {
 8413            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8414        });
 8415    }
 8416
 8417    // This automatically removes duplicate items in the pane
 8418    destination.update(cx, |destination, cx| {
 8419        destination.add_item_inner(
 8420            item_handle,
 8421            activate,
 8422            activate,
 8423            activate,
 8424            Some(destination_index),
 8425            window,
 8426            cx,
 8427        );
 8428        if activate {
 8429            window.focus(&destination.focus_handle(cx))
 8430        }
 8431    });
 8432}
 8433
 8434pub fn move_active_item(
 8435    source: &Entity<Pane>,
 8436    destination: &Entity<Pane>,
 8437    focus_destination: bool,
 8438    close_if_empty: bool,
 8439    window: &mut Window,
 8440    cx: &mut App,
 8441) {
 8442    if source == destination {
 8443        return;
 8444    }
 8445    let Some(active_item) = source.read(cx).active_item() else {
 8446        return;
 8447    };
 8448    source.update(cx, |source_pane, cx| {
 8449        let item_id = active_item.item_id();
 8450        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8451        destination.update(cx, |target_pane, cx| {
 8452            target_pane.add_item(
 8453                active_item,
 8454                focus_destination,
 8455                focus_destination,
 8456                Some(target_pane.items_len()),
 8457                window,
 8458                cx,
 8459            );
 8460        });
 8461    });
 8462}
 8463
 8464pub fn clone_active_item(
 8465    workspace_id: Option<WorkspaceId>,
 8466    source: &Entity<Pane>,
 8467    destination: &Entity<Pane>,
 8468    focus_destination: bool,
 8469    window: &mut Window,
 8470    cx: &mut App,
 8471) {
 8472    if source == destination {
 8473        return;
 8474    }
 8475    let Some(active_item) = source.read(cx).active_item() else {
 8476        return;
 8477    };
 8478    if !active_item.can_split(cx) {
 8479        return;
 8480    }
 8481    let destination = destination.downgrade();
 8482    let task = active_item.clone_on_split(workspace_id, window, cx);
 8483    window
 8484        .spawn(cx, async move |cx| {
 8485            let Some(clone) = task.await else {
 8486                return;
 8487            };
 8488            destination
 8489                .update_in(cx, |target_pane, window, cx| {
 8490                    target_pane.add_item(
 8491                        clone,
 8492                        focus_destination,
 8493                        focus_destination,
 8494                        Some(target_pane.items_len()),
 8495                        window,
 8496                        cx,
 8497                    );
 8498                })
 8499                .log_err();
 8500        })
 8501        .detach();
 8502}
 8503
 8504#[derive(Debug)]
 8505pub struct WorkspacePosition {
 8506    pub window_bounds: Option<WindowBounds>,
 8507    pub display: Option<Uuid>,
 8508    pub centered_layout: bool,
 8509}
 8510
 8511pub fn remote_workspace_position_from_db(
 8512    connection_options: RemoteConnectionOptions,
 8513    paths_to_open: &[PathBuf],
 8514    cx: &App,
 8515) -> Task<Result<WorkspacePosition>> {
 8516    let paths = paths_to_open.to_vec();
 8517
 8518    cx.background_spawn(async move {
 8519        let remote_connection_id = persistence::DB
 8520            .get_or_create_remote_connection(connection_options)
 8521            .await
 8522            .context("fetching serialized ssh project")?;
 8523        let serialized_workspace =
 8524            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8525
 8526        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8527            (Some(WindowBounds::Windowed(bounds)), None)
 8528        } else {
 8529            let restorable_bounds = serialized_workspace
 8530                .as_ref()
 8531                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8532                .or_else(|| {
 8533                    let (display, window_bounds) = DB.last_window().log_err()?;
 8534                    Some((display?, window_bounds?))
 8535                });
 8536
 8537            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8538                (Some(serialized_status.0), Some(serialized_display))
 8539            } else {
 8540                (None, None)
 8541            }
 8542        };
 8543
 8544        let centered_layout = serialized_workspace
 8545            .as_ref()
 8546            .map(|w| w.centered_layout)
 8547            .unwrap_or(false);
 8548
 8549        Ok(WorkspacePosition {
 8550            window_bounds,
 8551            display,
 8552            centered_layout,
 8553        })
 8554    })
 8555}
 8556
 8557pub fn with_active_or_new_workspace(
 8558    cx: &mut App,
 8559    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8560) {
 8561    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8562        Some(workspace) => {
 8563            cx.defer(move |cx| {
 8564                workspace
 8565                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8566                    .log_err();
 8567            });
 8568        }
 8569        None => {
 8570            let app_state = AppState::global(cx);
 8571            if let Some(app_state) = app_state.upgrade() {
 8572                open_new(
 8573                    OpenOptions::default(),
 8574                    app_state,
 8575                    cx,
 8576                    move |workspace, window, cx| f(workspace, window, cx),
 8577                )
 8578                .detach_and_log_err(cx);
 8579            }
 8580        }
 8581    }
 8582}
 8583
 8584#[cfg(test)]
 8585mod tests {
 8586    use std::{cell::RefCell, rc::Rc};
 8587
 8588    use super::*;
 8589    use crate::{
 8590        dock::{PanelEvent, test::TestPanel},
 8591        item::{
 8592            ItemBufferKind, ItemEvent,
 8593            test::{TestItem, TestProjectItem},
 8594        },
 8595    };
 8596    use fs::FakeFs;
 8597    use gpui::{
 8598        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8599        UpdateGlobal, VisualTestContext, px,
 8600    };
 8601    use project::{Project, ProjectEntryId};
 8602    use serde_json::json;
 8603    use settings::SettingsStore;
 8604    use util::rel_path::rel_path;
 8605
 8606    #[gpui::test]
 8607    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8608        init_test(cx);
 8609
 8610        let fs = FakeFs::new(cx.executor());
 8611        let project = Project::test(fs, [], cx).await;
 8612        let (workspace, cx) =
 8613            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8614
 8615        // Adding an item with no ambiguity renders the tab without detail.
 8616        let item1 = cx.new(|cx| {
 8617            let mut item = TestItem::new(cx);
 8618            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8619            item
 8620        });
 8621        workspace.update_in(cx, |workspace, window, cx| {
 8622            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8623        });
 8624        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8625
 8626        // Adding an item that creates ambiguity increases the level of detail on
 8627        // both tabs.
 8628        let item2 = cx.new_window_entity(|_window, cx| {
 8629            let mut item = TestItem::new(cx);
 8630            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8631            item
 8632        });
 8633        workspace.update_in(cx, |workspace, window, cx| {
 8634            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8635        });
 8636        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8637        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8638
 8639        // Adding an item that creates ambiguity increases the level of detail only
 8640        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8641        // we stop at the highest detail available.
 8642        let item3 = cx.new(|cx| {
 8643            let mut item = TestItem::new(cx);
 8644            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8645            item
 8646        });
 8647        workspace.update_in(cx, |workspace, window, cx| {
 8648            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8649        });
 8650        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8651        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8652        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8653    }
 8654
 8655    #[gpui::test]
 8656    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8657        init_test(cx);
 8658
 8659        let fs = FakeFs::new(cx.executor());
 8660        fs.insert_tree(
 8661            "/root1",
 8662            json!({
 8663                "one.txt": "",
 8664                "two.txt": "",
 8665            }),
 8666        )
 8667        .await;
 8668        fs.insert_tree(
 8669            "/root2",
 8670            json!({
 8671                "three.txt": "",
 8672            }),
 8673        )
 8674        .await;
 8675
 8676        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8677        let (workspace, cx) =
 8678            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8679        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8680        let worktree_id = project.update(cx, |project, cx| {
 8681            project.worktrees(cx).next().unwrap().read(cx).id()
 8682        });
 8683
 8684        let item1 = cx.new(|cx| {
 8685            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8686        });
 8687        let item2 = cx.new(|cx| {
 8688            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8689        });
 8690
 8691        // Add an item to an empty pane
 8692        workspace.update_in(cx, |workspace, window, cx| {
 8693            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8694        });
 8695        project.update(cx, |project, cx| {
 8696            assert_eq!(
 8697                project.active_entry(),
 8698                project
 8699                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8700                    .map(|e| e.id)
 8701            );
 8702        });
 8703        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8704
 8705        // Add a second item to a non-empty pane
 8706        workspace.update_in(cx, |workspace, window, cx| {
 8707            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8708        });
 8709        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8710        project.update(cx, |project, cx| {
 8711            assert_eq!(
 8712                project.active_entry(),
 8713                project
 8714                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 8715                    .map(|e| e.id)
 8716            );
 8717        });
 8718
 8719        // Close the active item
 8720        pane.update_in(cx, |pane, window, cx| {
 8721            pane.close_active_item(&Default::default(), window, cx)
 8722        })
 8723        .await
 8724        .unwrap();
 8725        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8726        project.update(cx, |project, cx| {
 8727            assert_eq!(
 8728                project.active_entry(),
 8729                project
 8730                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8731                    .map(|e| e.id)
 8732            );
 8733        });
 8734
 8735        // Add a project folder
 8736        project
 8737            .update(cx, |project, cx| {
 8738                project.find_or_create_worktree("root2", true, cx)
 8739            })
 8740            .await
 8741            .unwrap();
 8742        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8743
 8744        // Remove a project folder
 8745        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8746        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8747    }
 8748
 8749    #[gpui::test]
 8750    async fn test_close_window(cx: &mut TestAppContext) {
 8751        init_test(cx);
 8752
 8753        let fs = FakeFs::new(cx.executor());
 8754        fs.insert_tree("/root", json!({ "one": "" })).await;
 8755
 8756        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8757        let (workspace, cx) =
 8758            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8759
 8760        // When there are no dirty items, there's nothing to do.
 8761        let item1 = cx.new(TestItem::new);
 8762        workspace.update_in(cx, |w, window, cx| {
 8763            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8764        });
 8765        let task = workspace.update_in(cx, |w, window, cx| {
 8766            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8767        });
 8768        assert!(task.await.unwrap());
 8769
 8770        // When there are dirty untitled items, prompt to save each one. If the user
 8771        // cancels any prompt, then abort.
 8772        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8773        let item3 = cx.new(|cx| {
 8774            TestItem::new(cx)
 8775                .with_dirty(true)
 8776                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8777        });
 8778        workspace.update_in(cx, |w, window, cx| {
 8779            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8780            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8781        });
 8782        let task = workspace.update_in(cx, |w, window, cx| {
 8783            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8784        });
 8785        cx.executor().run_until_parked();
 8786        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8787        cx.executor().run_until_parked();
 8788        assert!(!cx.has_pending_prompt());
 8789        assert!(!task.await.unwrap());
 8790    }
 8791
 8792    #[gpui::test]
 8793    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8794        init_test(cx);
 8795
 8796        // Register TestItem as a serializable item
 8797        cx.update(|cx| {
 8798            register_serializable_item::<TestItem>(cx);
 8799        });
 8800
 8801        let fs = FakeFs::new(cx.executor());
 8802        fs.insert_tree("/root", json!({ "one": "" })).await;
 8803
 8804        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8805        let (workspace, cx) =
 8806            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8807
 8808        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8809        let item1 = cx.new(|cx| {
 8810            TestItem::new(cx)
 8811                .with_dirty(true)
 8812                .with_serialize(|| Some(Task::ready(Ok(()))))
 8813        });
 8814        let item2 = cx.new(|cx| {
 8815            TestItem::new(cx)
 8816                .with_dirty(true)
 8817                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8818                .with_serialize(|| Some(Task::ready(Ok(()))))
 8819        });
 8820        workspace.update_in(cx, |w, window, cx| {
 8821            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8822            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8823        });
 8824        let task = workspace.update_in(cx, |w, window, cx| {
 8825            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8826        });
 8827        assert!(task.await.unwrap());
 8828    }
 8829
 8830    #[gpui::test]
 8831    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8832        init_test(cx);
 8833
 8834        let fs = FakeFs::new(cx.executor());
 8835
 8836        let project = Project::test(fs, None, cx).await;
 8837        let (workspace, cx) =
 8838            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8839
 8840        let item1 = cx.new(|cx| {
 8841            TestItem::new(cx)
 8842                .with_dirty(true)
 8843                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8844        });
 8845        let item2 = cx.new(|cx| {
 8846            TestItem::new(cx)
 8847                .with_dirty(true)
 8848                .with_conflict(true)
 8849                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8850        });
 8851        let item3 = cx.new(|cx| {
 8852            TestItem::new(cx)
 8853                .with_dirty(true)
 8854                .with_conflict(true)
 8855                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8856        });
 8857        let item4 = cx.new(|cx| {
 8858            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8859                let project_item = TestProjectItem::new_untitled(cx);
 8860                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8861                project_item
 8862            }])
 8863        });
 8864        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8865            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8866            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8867            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8868            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8869            workspace.active_pane().clone()
 8870        });
 8871
 8872        let close_items = pane.update_in(cx, |pane, window, cx| {
 8873            pane.activate_item(1, true, true, window, cx);
 8874            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8875            let item1_id = item1.item_id();
 8876            let item3_id = item3.item_id();
 8877            let item4_id = item4.item_id();
 8878            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8879                [item1_id, item3_id, item4_id].contains(&id)
 8880            })
 8881        });
 8882        cx.executor().run_until_parked();
 8883
 8884        assert!(cx.has_pending_prompt());
 8885        cx.simulate_prompt_answer("Save all");
 8886
 8887        cx.executor().run_until_parked();
 8888
 8889        // Item 1 is saved. There's a prompt to save item 3.
 8890        pane.update(cx, |pane, cx| {
 8891            assert_eq!(item1.read(cx).save_count, 1);
 8892            assert_eq!(item1.read(cx).save_as_count, 0);
 8893            assert_eq!(item1.read(cx).reload_count, 0);
 8894            assert_eq!(pane.items_len(), 3);
 8895            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8896        });
 8897        assert!(cx.has_pending_prompt());
 8898
 8899        // Cancel saving item 3.
 8900        cx.simulate_prompt_answer("Discard");
 8901        cx.executor().run_until_parked();
 8902
 8903        // Item 3 is reloaded. There's a prompt to save item 4.
 8904        pane.update(cx, |pane, cx| {
 8905            assert_eq!(item3.read(cx).save_count, 0);
 8906            assert_eq!(item3.read(cx).save_as_count, 0);
 8907            assert_eq!(item3.read(cx).reload_count, 1);
 8908            assert_eq!(pane.items_len(), 2);
 8909            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8910        });
 8911
 8912        // There's a prompt for a path for item 4.
 8913        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8914        close_items.await.unwrap();
 8915
 8916        // The requested items are closed.
 8917        pane.update(cx, |pane, cx| {
 8918            assert_eq!(item4.read(cx).save_count, 0);
 8919            assert_eq!(item4.read(cx).save_as_count, 1);
 8920            assert_eq!(item4.read(cx).reload_count, 0);
 8921            assert_eq!(pane.items_len(), 1);
 8922            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8923        });
 8924    }
 8925
 8926    #[gpui::test]
 8927    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8928        init_test(cx);
 8929
 8930        let fs = FakeFs::new(cx.executor());
 8931        let project = Project::test(fs, [], cx).await;
 8932        let (workspace, cx) =
 8933            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8934
 8935        // Create several workspace items with single project entries, and two
 8936        // workspace items with multiple project entries.
 8937        let single_entry_items = (0..=4)
 8938            .map(|project_entry_id| {
 8939                cx.new(|cx| {
 8940                    TestItem::new(cx)
 8941                        .with_dirty(true)
 8942                        .with_project_items(&[dirty_project_item(
 8943                            project_entry_id,
 8944                            &format!("{project_entry_id}.txt"),
 8945                            cx,
 8946                        )])
 8947                })
 8948            })
 8949            .collect::<Vec<_>>();
 8950        let item_2_3 = cx.new(|cx| {
 8951            TestItem::new(cx)
 8952                .with_dirty(true)
 8953                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8954                .with_project_items(&[
 8955                    single_entry_items[2].read(cx).project_items[0].clone(),
 8956                    single_entry_items[3].read(cx).project_items[0].clone(),
 8957                ])
 8958        });
 8959        let item_3_4 = cx.new(|cx| {
 8960            TestItem::new(cx)
 8961                .with_dirty(true)
 8962                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8963                .with_project_items(&[
 8964                    single_entry_items[3].read(cx).project_items[0].clone(),
 8965                    single_entry_items[4].read(cx).project_items[0].clone(),
 8966                ])
 8967        });
 8968
 8969        // Create two panes that contain the following project entries:
 8970        //   left pane:
 8971        //     multi-entry items:   (2, 3)
 8972        //     single-entry items:  0, 2, 3, 4
 8973        //   right pane:
 8974        //     single-entry items:  4, 1
 8975        //     multi-entry items:   (3, 4)
 8976        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8977            let left_pane = workspace.active_pane().clone();
 8978            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8979            workspace.add_item_to_active_pane(
 8980                single_entry_items[0].boxed_clone(),
 8981                None,
 8982                true,
 8983                window,
 8984                cx,
 8985            );
 8986            workspace.add_item_to_active_pane(
 8987                single_entry_items[2].boxed_clone(),
 8988                None,
 8989                true,
 8990                window,
 8991                cx,
 8992            );
 8993            workspace.add_item_to_active_pane(
 8994                single_entry_items[3].boxed_clone(),
 8995                None,
 8996                true,
 8997                window,
 8998                cx,
 8999            );
 9000            workspace.add_item_to_active_pane(
 9001                single_entry_items[4].boxed_clone(),
 9002                None,
 9003                true,
 9004                window,
 9005                cx,
 9006            );
 9007
 9008            let right_pane =
 9009                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9010
 9011            let boxed_clone = single_entry_items[1].boxed_clone();
 9012            let right_pane = window.spawn(cx, async move |cx| {
 9013                right_pane.await.inspect(|right_pane| {
 9014                    right_pane
 9015                        .update_in(cx, |pane, window, cx| {
 9016                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9017                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9018                        })
 9019                        .unwrap();
 9020                })
 9021            });
 9022
 9023            (left_pane, right_pane)
 9024        });
 9025        let right_pane = right_pane.await.unwrap();
 9026        cx.focus(&right_pane);
 9027
 9028        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9029            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9030                .unwrap()
 9031        });
 9032        cx.executor().run_until_parked();
 9033
 9034        let msg = cx.pending_prompt().unwrap().0;
 9035        assert!(msg.contains("1.txt"));
 9036        assert!(!msg.contains("2.txt"));
 9037        assert!(!msg.contains("3.txt"));
 9038        assert!(!msg.contains("4.txt"));
 9039
 9040        cx.simulate_prompt_answer("Cancel");
 9041        close.await;
 9042
 9043        left_pane
 9044            .update_in(cx, |left_pane, window, cx| {
 9045                left_pane.close_item_by_id(
 9046                    single_entry_items[3].entity_id(),
 9047                    SaveIntent::Skip,
 9048                    window,
 9049                    cx,
 9050                )
 9051            })
 9052            .await
 9053            .unwrap();
 9054
 9055        close = right_pane.update_in(cx, |pane, window, cx| {
 9056            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9057                .unwrap()
 9058        });
 9059        cx.executor().run_until_parked();
 9060
 9061        let details = cx.pending_prompt().unwrap().1;
 9062        assert!(details.contains("1.txt"));
 9063        assert!(!details.contains("2.txt"));
 9064        assert!(details.contains("3.txt"));
 9065        // ideally this assertion could be made, but today we can only
 9066        // save whole items not project items, so the orphaned item 3 causes
 9067        // 4 to be saved too.
 9068        // assert!(!details.contains("4.txt"));
 9069
 9070        cx.simulate_prompt_answer("Save all");
 9071
 9072        cx.executor().run_until_parked();
 9073        close.await;
 9074        right_pane.read_with(cx, |pane, _| {
 9075            assert_eq!(pane.items_len(), 0);
 9076        });
 9077    }
 9078
 9079    #[gpui::test]
 9080    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9081        init_test(cx);
 9082
 9083        let fs = FakeFs::new(cx.executor());
 9084        let project = Project::test(fs, [], cx).await;
 9085        let (workspace, cx) =
 9086            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9087        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9088
 9089        let item = cx.new(|cx| {
 9090            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9091        });
 9092        let item_id = item.entity_id();
 9093        workspace.update_in(cx, |workspace, window, cx| {
 9094            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9095        });
 9096
 9097        // Autosave on window change.
 9098        item.update(cx, |item, cx| {
 9099            SettingsStore::update_global(cx, |settings, cx| {
 9100                settings.update_user_settings(cx, |settings| {
 9101                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9102                })
 9103            });
 9104            item.is_dirty = true;
 9105        });
 9106
 9107        // Deactivating the window saves the file.
 9108        cx.deactivate_window();
 9109        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9110
 9111        // Re-activating the window doesn't save the file.
 9112        cx.update(|window, _| window.activate_window());
 9113        cx.executor().run_until_parked();
 9114        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9115
 9116        // Autosave on focus change.
 9117        item.update_in(cx, |item, window, cx| {
 9118            cx.focus_self(window);
 9119            SettingsStore::update_global(cx, |settings, cx| {
 9120                settings.update_user_settings(cx, |settings| {
 9121                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9122                })
 9123            });
 9124            item.is_dirty = true;
 9125        });
 9126        // Blurring the item saves the file.
 9127        item.update_in(cx, |_, window, _| window.blur());
 9128        cx.executor().run_until_parked();
 9129        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9130
 9131        // Deactivating the window still saves the file.
 9132        item.update_in(cx, |item, window, cx| {
 9133            cx.focus_self(window);
 9134            item.is_dirty = true;
 9135        });
 9136        cx.deactivate_window();
 9137        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9138
 9139        // Autosave after delay.
 9140        item.update(cx, |item, cx| {
 9141            SettingsStore::update_global(cx, |settings, cx| {
 9142                settings.update_user_settings(cx, |settings| {
 9143                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9144                        milliseconds: 500.into(),
 9145                    });
 9146                })
 9147            });
 9148            item.is_dirty = true;
 9149            cx.emit(ItemEvent::Edit);
 9150        });
 9151
 9152        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9153        cx.executor().advance_clock(Duration::from_millis(250));
 9154        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9155
 9156        // After delay expires, the file is saved.
 9157        cx.executor().advance_clock(Duration::from_millis(250));
 9158        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9159
 9160        // Autosave after delay, should save earlier than delay if tab is closed
 9161        item.update(cx, |item, cx| {
 9162            item.is_dirty = true;
 9163            cx.emit(ItemEvent::Edit);
 9164        });
 9165        cx.executor().advance_clock(Duration::from_millis(250));
 9166        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9167
 9168        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9169        pane.update_in(cx, |pane, window, cx| {
 9170            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9171        })
 9172        .await
 9173        .unwrap();
 9174        assert!(!cx.has_pending_prompt());
 9175        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9176
 9177        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9178        workspace.update_in(cx, |workspace, window, cx| {
 9179            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9180        });
 9181        item.update_in(cx, |item, _window, cx| {
 9182            item.is_dirty = true;
 9183            for project_item in &mut item.project_items {
 9184                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9185            }
 9186        });
 9187        cx.run_until_parked();
 9188        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9189
 9190        // Autosave on focus change, ensuring closing the tab counts as such.
 9191        item.update(cx, |item, cx| {
 9192            SettingsStore::update_global(cx, |settings, cx| {
 9193                settings.update_user_settings(cx, |settings| {
 9194                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9195                })
 9196            });
 9197            item.is_dirty = true;
 9198            for project_item in &mut item.project_items {
 9199                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9200            }
 9201        });
 9202
 9203        pane.update_in(cx, |pane, window, cx| {
 9204            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9205        })
 9206        .await
 9207        .unwrap();
 9208        assert!(!cx.has_pending_prompt());
 9209        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9210
 9211        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9212        workspace.update_in(cx, |workspace, window, cx| {
 9213            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9214        });
 9215        item.update_in(cx, |item, window, cx| {
 9216            item.project_items[0].update(cx, |item, _| {
 9217                item.entry_id = None;
 9218            });
 9219            item.is_dirty = true;
 9220            window.blur();
 9221        });
 9222        cx.run_until_parked();
 9223        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9224
 9225        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9226        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9227            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9228        });
 9229        cx.run_until_parked();
 9230        assert!(cx.has_pending_prompt());
 9231        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9232    }
 9233
 9234    #[gpui::test]
 9235    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9236        init_test(cx);
 9237
 9238        let fs = FakeFs::new(cx.executor());
 9239
 9240        let project = Project::test(fs, [], cx).await;
 9241        let (workspace, cx) =
 9242            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9243
 9244        let item = cx.new(|cx| {
 9245            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9246        });
 9247        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9248        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9249        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9250
 9251        workspace.update_in(cx, |workspace, window, cx| {
 9252            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9253            let toolbar_notification_count = toolbar_notify_count.clone();
 9254            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9255                *toolbar_notification_count.borrow_mut() += 1
 9256            })
 9257            .detach();
 9258        });
 9259
 9260        pane.read_with(cx, |pane, _| {
 9261            assert!(!pane.can_navigate_backward());
 9262            assert!(!pane.can_navigate_forward());
 9263        });
 9264
 9265        item.update_in(cx, |item, _, cx| {
 9266            item.set_state("one".to_string(), cx);
 9267        });
 9268
 9269        // Toolbar must be notified to re-render the navigation buttons
 9270        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9271
 9272        pane.read_with(cx, |pane, _| {
 9273            assert!(pane.can_navigate_backward());
 9274            assert!(!pane.can_navigate_forward());
 9275        });
 9276
 9277        workspace
 9278            .update_in(cx, |workspace, window, cx| {
 9279                workspace.go_back(pane.downgrade(), window, cx)
 9280            })
 9281            .await
 9282            .unwrap();
 9283
 9284        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9285        pane.read_with(cx, |pane, _| {
 9286            assert!(!pane.can_navigate_backward());
 9287            assert!(pane.can_navigate_forward());
 9288        });
 9289    }
 9290
 9291    #[gpui::test]
 9292    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9293        init_test(cx);
 9294        let fs = FakeFs::new(cx.executor());
 9295
 9296        let project = Project::test(fs, [], cx).await;
 9297        let (workspace, cx) =
 9298            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9299
 9300        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9301            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9302            workspace.add_panel(panel.clone(), window, cx);
 9303
 9304            workspace
 9305                .right_dock()
 9306                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9307
 9308            panel
 9309        });
 9310
 9311        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9312        pane.update_in(cx, |pane, window, cx| {
 9313            let item = cx.new(TestItem::new);
 9314            pane.add_item(Box::new(item), true, true, None, window, cx);
 9315        });
 9316
 9317        // Transfer focus from center to panel
 9318        workspace.update_in(cx, |workspace, window, cx| {
 9319            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9320        });
 9321
 9322        workspace.update_in(cx, |workspace, window, cx| {
 9323            assert!(workspace.right_dock().read(cx).is_open());
 9324            assert!(!panel.is_zoomed(window, cx));
 9325            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9326        });
 9327
 9328        // Transfer focus from panel to center
 9329        workspace.update_in(cx, |workspace, window, cx| {
 9330            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9331        });
 9332
 9333        workspace.update_in(cx, |workspace, window, cx| {
 9334            assert!(workspace.right_dock().read(cx).is_open());
 9335            assert!(!panel.is_zoomed(window, cx));
 9336            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9337        });
 9338
 9339        // Close the dock
 9340        workspace.update_in(cx, |workspace, window, cx| {
 9341            workspace.toggle_dock(DockPosition::Right, window, cx);
 9342        });
 9343
 9344        workspace.update_in(cx, |workspace, window, cx| {
 9345            assert!(!workspace.right_dock().read(cx).is_open());
 9346            assert!(!panel.is_zoomed(window, cx));
 9347            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9348        });
 9349
 9350        // Open the dock
 9351        workspace.update_in(cx, |workspace, window, cx| {
 9352            workspace.toggle_dock(DockPosition::Right, window, cx);
 9353        });
 9354
 9355        workspace.update_in(cx, |workspace, window, cx| {
 9356            assert!(workspace.right_dock().read(cx).is_open());
 9357            assert!(!panel.is_zoomed(window, cx));
 9358            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9359        });
 9360
 9361        // Focus and zoom panel
 9362        panel.update_in(cx, |panel, window, cx| {
 9363            cx.focus_self(window);
 9364            panel.set_zoomed(true, window, cx)
 9365        });
 9366
 9367        workspace.update_in(cx, |workspace, window, cx| {
 9368            assert!(workspace.right_dock().read(cx).is_open());
 9369            assert!(panel.is_zoomed(window, cx));
 9370            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9371        });
 9372
 9373        // Transfer focus to the center closes the dock
 9374        workspace.update_in(cx, |workspace, window, cx| {
 9375            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9376        });
 9377
 9378        workspace.update_in(cx, |workspace, window, cx| {
 9379            assert!(!workspace.right_dock().read(cx).is_open());
 9380            assert!(panel.is_zoomed(window, cx));
 9381            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9382        });
 9383
 9384        // Transferring focus back to the panel keeps it zoomed
 9385        workspace.update_in(cx, |workspace, window, cx| {
 9386            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9387        });
 9388
 9389        workspace.update_in(cx, |workspace, window, cx| {
 9390            assert!(workspace.right_dock().read(cx).is_open());
 9391            assert!(panel.is_zoomed(window, cx));
 9392            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9393        });
 9394
 9395        // Close the dock while it is zoomed
 9396        workspace.update_in(cx, |workspace, window, cx| {
 9397            workspace.toggle_dock(DockPosition::Right, window, cx)
 9398        });
 9399
 9400        workspace.update_in(cx, |workspace, window, cx| {
 9401            assert!(!workspace.right_dock().read(cx).is_open());
 9402            assert!(panel.is_zoomed(window, cx));
 9403            assert!(workspace.zoomed.is_none());
 9404            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9405        });
 9406
 9407        // Opening the dock, when it's zoomed, retains focus
 9408        workspace.update_in(cx, |workspace, window, cx| {
 9409            workspace.toggle_dock(DockPosition::Right, window, cx)
 9410        });
 9411
 9412        workspace.update_in(cx, |workspace, window, cx| {
 9413            assert!(workspace.right_dock().read(cx).is_open());
 9414            assert!(panel.is_zoomed(window, cx));
 9415            assert!(workspace.zoomed.is_some());
 9416            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9417        });
 9418
 9419        // Unzoom and close the panel, zoom the active pane.
 9420        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9421        workspace.update_in(cx, |workspace, window, cx| {
 9422            workspace.toggle_dock(DockPosition::Right, window, cx)
 9423        });
 9424        pane.update_in(cx, |pane, window, cx| {
 9425            pane.toggle_zoom(&Default::default(), window, cx)
 9426        });
 9427
 9428        // Opening a dock unzooms the pane.
 9429        workspace.update_in(cx, |workspace, window, cx| {
 9430            workspace.toggle_dock(DockPosition::Right, window, cx)
 9431        });
 9432        workspace.update_in(cx, |workspace, window, cx| {
 9433            let pane = pane.read(cx);
 9434            assert!(!pane.is_zoomed());
 9435            assert!(!pane.focus_handle(cx).is_focused(window));
 9436            assert!(workspace.right_dock().read(cx).is_open());
 9437            assert!(workspace.zoomed.is_none());
 9438        });
 9439    }
 9440
 9441    #[gpui::test]
 9442    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9443        init_test(cx);
 9444        let fs = FakeFs::new(cx.executor());
 9445
 9446        let project = Project::test(fs, [], cx).await;
 9447        let (workspace, cx) =
 9448            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9449        workspace.update_in(cx, |workspace, window, cx| {
 9450            // Open two docks
 9451            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9452            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9453
 9454            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9455            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9456
 9457            assert!(left_dock.read(cx).is_open());
 9458            assert!(right_dock.read(cx).is_open());
 9459        });
 9460
 9461        workspace.update_in(cx, |workspace, window, cx| {
 9462            // Toggle all docks - should close both
 9463            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9464
 9465            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9466            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9467            assert!(!left_dock.read(cx).is_open());
 9468            assert!(!right_dock.read(cx).is_open());
 9469        });
 9470
 9471        workspace.update_in(cx, |workspace, window, cx| {
 9472            // Toggle again - should reopen both
 9473            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9474
 9475            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9476            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9477            assert!(left_dock.read(cx).is_open());
 9478            assert!(right_dock.read(cx).is_open());
 9479        });
 9480    }
 9481
 9482    #[gpui::test]
 9483    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9484        init_test(cx);
 9485        let fs = FakeFs::new(cx.executor());
 9486
 9487        let project = Project::test(fs, [], cx).await;
 9488        let (workspace, cx) =
 9489            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9490        workspace.update_in(cx, |workspace, window, cx| {
 9491            // Open two docks
 9492            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9493            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9494
 9495            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9496            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9497
 9498            assert!(left_dock.read(cx).is_open());
 9499            assert!(right_dock.read(cx).is_open());
 9500        });
 9501
 9502        workspace.update_in(cx, |workspace, window, cx| {
 9503            // Close them manually
 9504            workspace.toggle_dock(DockPosition::Left, window, cx);
 9505            workspace.toggle_dock(DockPosition::Right, window, cx);
 9506
 9507            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9508            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9509            assert!(!left_dock.read(cx).is_open());
 9510            assert!(!right_dock.read(cx).is_open());
 9511        });
 9512
 9513        workspace.update_in(cx, |workspace, window, cx| {
 9514            // Toggle all docks - only last closed (right dock) should reopen
 9515            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9516
 9517            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9518            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9519            assert!(!left_dock.read(cx).is_open());
 9520            assert!(right_dock.read(cx).is_open());
 9521        });
 9522    }
 9523
 9524    #[gpui::test]
 9525    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9526        init_test(cx);
 9527        let fs = FakeFs::new(cx.executor());
 9528        let project = Project::test(fs, [], cx).await;
 9529        let (workspace, cx) =
 9530            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9531
 9532        // Open two docks (left and right) with one panel each
 9533        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9534            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9535            workspace.add_panel(left_panel.clone(), window, cx);
 9536
 9537            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9538            workspace.add_panel(right_panel.clone(), window, cx);
 9539
 9540            workspace.toggle_dock(DockPosition::Left, window, cx);
 9541            workspace.toggle_dock(DockPosition::Right, window, cx);
 9542
 9543            // Verify initial state
 9544            assert!(
 9545                workspace.left_dock().read(cx).is_open(),
 9546                "Left dock should be open"
 9547            );
 9548            assert_eq!(
 9549                workspace
 9550                    .left_dock()
 9551                    .read(cx)
 9552                    .visible_panel()
 9553                    .unwrap()
 9554                    .panel_id(),
 9555                left_panel.panel_id(),
 9556                "Left panel should be visible in left dock"
 9557            );
 9558            assert!(
 9559                workspace.right_dock().read(cx).is_open(),
 9560                "Right dock should be open"
 9561            );
 9562            assert_eq!(
 9563                workspace
 9564                    .right_dock()
 9565                    .read(cx)
 9566                    .visible_panel()
 9567                    .unwrap()
 9568                    .panel_id(),
 9569                right_panel.panel_id(),
 9570                "Right panel should be visible in right dock"
 9571            );
 9572            assert!(
 9573                !workspace.bottom_dock().read(cx).is_open(),
 9574                "Bottom dock should be closed"
 9575            );
 9576
 9577            (left_panel, right_panel)
 9578        });
 9579
 9580        // Focus the left panel and move it to the next position (bottom dock)
 9581        workspace.update_in(cx, |workspace, window, cx| {
 9582            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
 9583            assert!(
 9584                left_panel.read(cx).focus_handle(cx).is_focused(window),
 9585                "Left panel should be focused"
 9586            );
 9587        });
 9588
 9589        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9590
 9591        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
 9592        workspace.update(cx, |workspace, cx| {
 9593            assert!(
 9594                !workspace.left_dock().read(cx).is_open(),
 9595                "Left dock should be closed"
 9596            );
 9597            assert!(
 9598                workspace.bottom_dock().read(cx).is_open(),
 9599                "Bottom dock should now be open"
 9600            );
 9601            assert_eq!(
 9602                left_panel.read(cx).position,
 9603                DockPosition::Bottom,
 9604                "Left panel should now be in the bottom dock"
 9605            );
 9606            assert_eq!(
 9607                workspace
 9608                    .bottom_dock()
 9609                    .read(cx)
 9610                    .visible_panel()
 9611                    .unwrap()
 9612                    .panel_id(),
 9613                left_panel.panel_id(),
 9614                "Left panel should be the visible panel in the bottom dock"
 9615            );
 9616        });
 9617
 9618        // Toggle all docks off
 9619        workspace.update_in(cx, |workspace, window, cx| {
 9620            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9621            assert!(
 9622                !workspace.left_dock().read(cx).is_open(),
 9623                "Left dock should be closed"
 9624            );
 9625            assert!(
 9626                !workspace.right_dock().read(cx).is_open(),
 9627                "Right dock should be closed"
 9628            );
 9629            assert!(
 9630                !workspace.bottom_dock().read(cx).is_open(),
 9631                "Bottom dock should be closed"
 9632            );
 9633        });
 9634
 9635        // Toggle all docks back on and verify positions are restored
 9636        workspace.update_in(cx, |workspace, window, cx| {
 9637            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9638            assert!(
 9639                !workspace.left_dock().read(cx).is_open(),
 9640                "Left dock should remain closed"
 9641            );
 9642            assert!(
 9643                workspace.right_dock().read(cx).is_open(),
 9644                "Right dock should remain open"
 9645            );
 9646            assert!(
 9647                workspace.bottom_dock().read(cx).is_open(),
 9648                "Bottom dock should remain open"
 9649            );
 9650            assert_eq!(
 9651                left_panel.read(cx).position,
 9652                DockPosition::Bottom,
 9653                "Left panel should remain in the bottom dock"
 9654            );
 9655            assert_eq!(
 9656                right_panel.read(cx).position,
 9657                DockPosition::Right,
 9658                "Right panel should remain in the right dock"
 9659            );
 9660            assert_eq!(
 9661                workspace
 9662                    .bottom_dock()
 9663                    .read(cx)
 9664                    .visible_panel()
 9665                    .unwrap()
 9666                    .panel_id(),
 9667                left_panel.panel_id(),
 9668                "Left panel should be the visible panel in the right dock"
 9669            );
 9670        });
 9671    }
 9672
 9673    #[gpui::test]
 9674    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 9675        init_test(cx);
 9676
 9677        let fs = FakeFs::new(cx.executor());
 9678
 9679        let project = Project::test(fs, None, cx).await;
 9680        let (workspace, cx) =
 9681            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9682
 9683        // Let's arrange the panes like this:
 9684        //
 9685        // +-----------------------+
 9686        // |         top           |
 9687        // +------+--------+-------+
 9688        // | left | center | right |
 9689        // +------+--------+-------+
 9690        // |        bottom         |
 9691        // +-----------------------+
 9692
 9693        let top_item = cx.new(|cx| {
 9694            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9695        });
 9696        let bottom_item = cx.new(|cx| {
 9697            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9698        });
 9699        let left_item = cx.new(|cx| {
 9700            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9701        });
 9702        let right_item = cx.new(|cx| {
 9703            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9704        });
 9705        let center_item = cx.new(|cx| {
 9706            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9707        });
 9708
 9709        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9710            let top_pane_id = workspace.active_pane().entity_id();
 9711            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9712            workspace.split_pane(
 9713                workspace.active_pane().clone(),
 9714                SplitDirection::Down,
 9715                window,
 9716                cx,
 9717            );
 9718            top_pane_id
 9719        });
 9720        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9721            let bottom_pane_id = workspace.active_pane().entity_id();
 9722            workspace.add_item_to_active_pane(
 9723                Box::new(bottom_item.clone()),
 9724                None,
 9725                false,
 9726                window,
 9727                cx,
 9728            );
 9729            workspace.split_pane(
 9730                workspace.active_pane().clone(),
 9731                SplitDirection::Up,
 9732                window,
 9733                cx,
 9734            );
 9735            bottom_pane_id
 9736        });
 9737        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9738            let left_pane_id = workspace.active_pane().entity_id();
 9739            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9740            workspace.split_pane(
 9741                workspace.active_pane().clone(),
 9742                SplitDirection::Right,
 9743                window,
 9744                cx,
 9745            );
 9746            left_pane_id
 9747        });
 9748        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9749            let right_pane_id = workspace.active_pane().entity_id();
 9750            workspace.add_item_to_active_pane(
 9751                Box::new(right_item.clone()),
 9752                None,
 9753                false,
 9754                window,
 9755                cx,
 9756            );
 9757            workspace.split_pane(
 9758                workspace.active_pane().clone(),
 9759                SplitDirection::Left,
 9760                window,
 9761                cx,
 9762            );
 9763            right_pane_id
 9764        });
 9765        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9766            let center_pane_id = workspace.active_pane().entity_id();
 9767            workspace.add_item_to_active_pane(
 9768                Box::new(center_item.clone()),
 9769                None,
 9770                false,
 9771                window,
 9772                cx,
 9773            );
 9774            center_pane_id
 9775        });
 9776        cx.executor().run_until_parked();
 9777
 9778        workspace.update_in(cx, |workspace, window, cx| {
 9779            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9780
 9781            // Join into next from center pane into right
 9782            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9783        });
 9784
 9785        workspace.update_in(cx, |workspace, window, cx| {
 9786            let active_pane = workspace.active_pane();
 9787            assert_eq!(right_pane_id, active_pane.entity_id());
 9788            assert_eq!(2, active_pane.read(cx).items_len());
 9789            let item_ids_in_pane =
 9790                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9791            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9792            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9793
 9794            // Join into next from right pane into bottom
 9795            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9796        });
 9797
 9798        workspace.update_in(cx, |workspace, window, cx| {
 9799            let active_pane = workspace.active_pane();
 9800            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9801            assert_eq!(3, active_pane.read(cx).items_len());
 9802            let item_ids_in_pane =
 9803                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9804            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9805            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9806            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9807
 9808            // Join into next from bottom pane into left
 9809            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9810        });
 9811
 9812        workspace.update_in(cx, |workspace, window, cx| {
 9813            let active_pane = workspace.active_pane();
 9814            assert_eq!(left_pane_id, active_pane.entity_id());
 9815            assert_eq!(4, active_pane.read(cx).items_len());
 9816            let item_ids_in_pane =
 9817                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9818            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9819            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9820            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9821            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9822
 9823            // Join into next from left pane into top
 9824            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9825        });
 9826
 9827        workspace.update_in(cx, |workspace, window, cx| {
 9828            let active_pane = workspace.active_pane();
 9829            assert_eq!(top_pane_id, active_pane.entity_id());
 9830            assert_eq!(5, active_pane.read(cx).items_len());
 9831            let item_ids_in_pane =
 9832                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9833            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9834            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9835            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9836            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9837            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9838
 9839            // Single pane left: no-op
 9840            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9841        });
 9842
 9843        workspace.update(cx, |workspace, _cx| {
 9844            let active_pane = workspace.active_pane();
 9845            assert_eq!(top_pane_id, active_pane.entity_id());
 9846        });
 9847    }
 9848
 9849    fn add_an_item_to_active_pane(
 9850        cx: &mut VisualTestContext,
 9851        workspace: &Entity<Workspace>,
 9852        item_id: u64,
 9853    ) -> Entity<TestItem> {
 9854        let item = cx.new(|cx| {
 9855            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9856                item_id,
 9857                "item{item_id}.txt",
 9858                cx,
 9859            )])
 9860        });
 9861        workspace.update_in(cx, |workspace, window, cx| {
 9862            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9863        });
 9864        item
 9865    }
 9866
 9867    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9868        workspace.update_in(cx, |workspace, window, cx| {
 9869            workspace.split_pane(
 9870                workspace.active_pane().clone(),
 9871                SplitDirection::Right,
 9872                window,
 9873                cx,
 9874            )
 9875        })
 9876    }
 9877
 9878    #[gpui::test]
 9879    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9880        init_test(cx);
 9881        let fs = FakeFs::new(cx.executor());
 9882        let project = Project::test(fs, None, cx).await;
 9883        let (workspace, cx) =
 9884            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9885
 9886        add_an_item_to_active_pane(cx, &workspace, 1);
 9887        split_pane(cx, &workspace);
 9888        add_an_item_to_active_pane(cx, &workspace, 2);
 9889        split_pane(cx, &workspace); // empty pane
 9890        split_pane(cx, &workspace);
 9891        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9892
 9893        cx.executor().run_until_parked();
 9894
 9895        workspace.update(cx, |workspace, cx| {
 9896            let num_panes = workspace.panes().len();
 9897            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9898            let active_item = workspace
 9899                .active_pane()
 9900                .read(cx)
 9901                .active_item()
 9902                .expect("item is in focus");
 9903
 9904            assert_eq!(num_panes, 4);
 9905            assert_eq!(num_items_in_current_pane, 1);
 9906            assert_eq!(active_item.item_id(), last_item.item_id());
 9907        });
 9908
 9909        workspace.update_in(cx, |workspace, window, cx| {
 9910            workspace.join_all_panes(window, cx);
 9911        });
 9912
 9913        workspace.update(cx, |workspace, cx| {
 9914            let num_panes = workspace.panes().len();
 9915            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9916            let active_item = workspace
 9917                .active_pane()
 9918                .read(cx)
 9919                .active_item()
 9920                .expect("item is in focus");
 9921
 9922            assert_eq!(num_panes, 1);
 9923            assert_eq!(num_items_in_current_pane, 3);
 9924            assert_eq!(active_item.item_id(), last_item.item_id());
 9925        });
 9926    }
 9927    struct TestModal(FocusHandle);
 9928
 9929    impl TestModal {
 9930        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9931            Self(cx.focus_handle())
 9932        }
 9933    }
 9934
 9935    impl EventEmitter<DismissEvent> for TestModal {}
 9936
 9937    impl Focusable for TestModal {
 9938        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9939            self.0.clone()
 9940        }
 9941    }
 9942
 9943    impl ModalView for TestModal {}
 9944
 9945    impl Render for TestModal {
 9946        fn render(
 9947            &mut self,
 9948            _window: &mut Window,
 9949            _cx: &mut Context<TestModal>,
 9950        ) -> impl IntoElement {
 9951            div().track_focus(&self.0)
 9952        }
 9953    }
 9954
 9955    #[gpui::test]
 9956    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9957        init_test(cx);
 9958        let fs = FakeFs::new(cx.executor());
 9959
 9960        let project = Project::test(fs, [], cx).await;
 9961        let (workspace, cx) =
 9962            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9963
 9964        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9965            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9966            workspace.add_panel(panel_1.clone(), window, cx);
 9967            workspace.toggle_dock(DockPosition::Left, window, cx);
 9968            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9969            workspace.add_panel(panel_2.clone(), window, cx);
 9970            workspace.toggle_dock(DockPosition::Right, window, cx);
 9971
 9972            let left_dock = workspace.left_dock();
 9973            assert_eq!(
 9974                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9975                panel_1.panel_id()
 9976            );
 9977            assert_eq!(
 9978                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9979                panel_1.size(window, cx)
 9980            );
 9981
 9982            left_dock.update(cx, |left_dock, cx| {
 9983                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9984            });
 9985            assert_eq!(
 9986                workspace
 9987                    .right_dock()
 9988                    .read(cx)
 9989                    .visible_panel()
 9990                    .unwrap()
 9991                    .panel_id(),
 9992                panel_2.panel_id(),
 9993            );
 9994
 9995            (panel_1, panel_2)
 9996        });
 9997
 9998        // Move panel_1 to the right
 9999        panel_1.update_in(cx, |panel_1, window, cx| {
10000            panel_1.set_position(DockPosition::Right, window, cx)
10001        });
10002
10003        workspace.update_in(cx, |workspace, window, cx| {
10004            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10005            // Since it was the only panel on the left, the left dock should now be closed.
10006            assert!(!workspace.left_dock().read(cx).is_open());
10007            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10008            let right_dock = workspace.right_dock();
10009            assert_eq!(
10010                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10011                panel_1.panel_id()
10012            );
10013            assert_eq!(
10014                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10015                px(1337.)
10016            );
10017
10018            // Now we move panel_2 to the left
10019            panel_2.set_position(DockPosition::Left, window, cx);
10020        });
10021
10022        workspace.update(cx, |workspace, cx| {
10023            // Since panel_2 was not visible on the right, we don't open the left dock.
10024            assert!(!workspace.left_dock().read(cx).is_open());
10025            // And the right dock is unaffected in its displaying of panel_1
10026            assert!(workspace.right_dock().read(cx).is_open());
10027            assert_eq!(
10028                workspace
10029                    .right_dock()
10030                    .read(cx)
10031                    .visible_panel()
10032                    .unwrap()
10033                    .panel_id(),
10034                panel_1.panel_id(),
10035            );
10036        });
10037
10038        // Move panel_1 back to the left
10039        panel_1.update_in(cx, |panel_1, window, cx| {
10040            panel_1.set_position(DockPosition::Left, window, cx)
10041        });
10042
10043        workspace.update_in(cx, |workspace, window, cx| {
10044            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10045            let left_dock = workspace.left_dock();
10046            assert!(left_dock.read(cx).is_open());
10047            assert_eq!(
10048                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10049                panel_1.panel_id()
10050            );
10051            assert_eq!(
10052                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10053                px(1337.)
10054            );
10055            // And the right dock should be closed as it no longer has any panels.
10056            assert!(!workspace.right_dock().read(cx).is_open());
10057
10058            // Now we move panel_1 to the bottom
10059            panel_1.set_position(DockPosition::Bottom, window, cx);
10060        });
10061
10062        workspace.update_in(cx, |workspace, window, cx| {
10063            // Since panel_1 was visible on the left, we close the left dock.
10064            assert!(!workspace.left_dock().read(cx).is_open());
10065            // The bottom dock is sized based on the panel's default size,
10066            // since the panel orientation changed from vertical to horizontal.
10067            let bottom_dock = workspace.bottom_dock();
10068            assert_eq!(
10069                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10070                panel_1.size(window, cx),
10071            );
10072            // Close bottom dock and move panel_1 back to the left.
10073            bottom_dock.update(cx, |bottom_dock, cx| {
10074                bottom_dock.set_open(false, window, cx)
10075            });
10076            panel_1.set_position(DockPosition::Left, window, cx);
10077        });
10078
10079        // Emit activated event on panel 1
10080        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10081
10082        // Now the left dock is open and panel_1 is active and focused.
10083        workspace.update_in(cx, |workspace, window, cx| {
10084            let left_dock = workspace.left_dock();
10085            assert!(left_dock.read(cx).is_open());
10086            assert_eq!(
10087                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10088                panel_1.panel_id(),
10089            );
10090            assert!(panel_1.focus_handle(cx).is_focused(window));
10091        });
10092
10093        // Emit closed event on panel 2, which is not active
10094        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10095
10096        // Wo don't close the left dock, because panel_2 wasn't the active panel
10097        workspace.update(cx, |workspace, cx| {
10098            let left_dock = workspace.left_dock();
10099            assert!(left_dock.read(cx).is_open());
10100            assert_eq!(
10101                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10102                panel_1.panel_id(),
10103            );
10104        });
10105
10106        // Emitting a ZoomIn event shows the panel as zoomed.
10107        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10108        workspace.read_with(cx, |workspace, _| {
10109            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10110            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10111        });
10112
10113        // Move panel to another dock while it is zoomed
10114        panel_1.update_in(cx, |panel, window, cx| {
10115            panel.set_position(DockPosition::Right, window, cx)
10116        });
10117        workspace.read_with(cx, |workspace, _| {
10118            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10119
10120            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10121        });
10122
10123        // This is a helper for getting a:
10124        // - valid focus on an element,
10125        // - that isn't a part of the panes and panels system of the Workspace,
10126        // - and doesn't trigger the 'on_focus_lost' API.
10127        let focus_other_view = {
10128            let workspace = workspace.clone();
10129            move |cx: &mut VisualTestContext| {
10130                workspace.update_in(cx, |workspace, window, cx| {
10131                    if workspace.active_modal::<TestModal>(cx).is_some() {
10132                        workspace.toggle_modal(window, cx, TestModal::new);
10133                        workspace.toggle_modal(window, cx, TestModal::new);
10134                    } else {
10135                        workspace.toggle_modal(window, cx, TestModal::new);
10136                    }
10137                })
10138            }
10139        };
10140
10141        // If focus is transferred to another view that's not a panel or another pane, we still show
10142        // the panel as zoomed.
10143        focus_other_view(cx);
10144        workspace.read_with(cx, |workspace, _| {
10145            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10146            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10147        });
10148
10149        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10150        workspace.update_in(cx, |_workspace, window, cx| {
10151            cx.focus_self(window);
10152        });
10153        workspace.read_with(cx, |workspace, _| {
10154            assert_eq!(workspace.zoomed, None);
10155            assert_eq!(workspace.zoomed_position, None);
10156        });
10157
10158        // If focus is transferred again to another view that's not a panel or a pane, we won't
10159        // show the panel as zoomed because it wasn't zoomed before.
10160        focus_other_view(cx);
10161        workspace.read_with(cx, |workspace, _| {
10162            assert_eq!(workspace.zoomed, None);
10163            assert_eq!(workspace.zoomed_position, None);
10164        });
10165
10166        // When the panel is activated, it is zoomed again.
10167        cx.dispatch_action(ToggleRightDock);
10168        workspace.read_with(cx, |workspace, _| {
10169            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10170            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10171        });
10172
10173        // Emitting a ZoomOut event unzooms the panel.
10174        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10175        workspace.read_with(cx, |workspace, _| {
10176            assert_eq!(workspace.zoomed, None);
10177            assert_eq!(workspace.zoomed_position, None);
10178        });
10179
10180        // Emit closed event on panel 1, which is active
10181        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10182
10183        // Now the left dock is closed, because panel_1 was the active panel
10184        workspace.update(cx, |workspace, cx| {
10185            let right_dock = workspace.right_dock();
10186            assert!(!right_dock.read(cx).is_open());
10187        });
10188    }
10189
10190    #[gpui::test]
10191    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10192        init_test(cx);
10193
10194        let fs = FakeFs::new(cx.background_executor.clone());
10195        let project = Project::test(fs, [], cx).await;
10196        let (workspace, cx) =
10197            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10198        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10199
10200        let dirty_regular_buffer = cx.new(|cx| {
10201            TestItem::new(cx)
10202                .with_dirty(true)
10203                .with_label("1.txt")
10204                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10205        });
10206        let dirty_regular_buffer_2 = cx.new(|cx| {
10207            TestItem::new(cx)
10208                .with_dirty(true)
10209                .with_label("2.txt")
10210                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10211        });
10212        let dirty_multi_buffer_with_both = cx.new(|cx| {
10213            TestItem::new(cx)
10214                .with_dirty(true)
10215                .with_buffer_kind(ItemBufferKind::Multibuffer)
10216                .with_label("Fake Project Search")
10217                .with_project_items(&[
10218                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10219                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10220                ])
10221        });
10222        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10223        workspace.update_in(cx, |workspace, window, cx| {
10224            workspace.add_item(
10225                pane.clone(),
10226                Box::new(dirty_regular_buffer.clone()),
10227                None,
10228                false,
10229                false,
10230                window,
10231                cx,
10232            );
10233            workspace.add_item(
10234                pane.clone(),
10235                Box::new(dirty_regular_buffer_2.clone()),
10236                None,
10237                false,
10238                false,
10239                window,
10240                cx,
10241            );
10242            workspace.add_item(
10243                pane.clone(),
10244                Box::new(dirty_multi_buffer_with_both.clone()),
10245                None,
10246                false,
10247                false,
10248                window,
10249                cx,
10250            );
10251        });
10252
10253        pane.update_in(cx, |pane, window, cx| {
10254            pane.activate_item(2, true, true, window, cx);
10255            assert_eq!(
10256                pane.active_item().unwrap().item_id(),
10257                multi_buffer_with_both_files_id,
10258                "Should select the multi buffer in the pane"
10259            );
10260        });
10261        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10262            pane.close_other_items(
10263                &CloseOtherItems {
10264                    save_intent: Some(SaveIntent::Save),
10265                    close_pinned: true,
10266                },
10267                None,
10268                window,
10269                cx,
10270            )
10271        });
10272        cx.background_executor.run_until_parked();
10273        assert!(!cx.has_pending_prompt());
10274        close_all_but_multi_buffer_task
10275            .await
10276            .expect("Closing all buffers but the multi buffer failed");
10277        pane.update(cx, |pane, cx| {
10278            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10279            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10280            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10281            assert_eq!(pane.items_len(), 1);
10282            assert_eq!(
10283                pane.active_item().unwrap().item_id(),
10284                multi_buffer_with_both_files_id,
10285                "Should have only the multi buffer left in the pane"
10286            );
10287            assert!(
10288                dirty_multi_buffer_with_both.read(cx).is_dirty,
10289                "The multi buffer containing the unsaved buffer should still be dirty"
10290            );
10291        });
10292
10293        dirty_regular_buffer.update(cx, |buffer, cx| {
10294            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10295        });
10296
10297        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10298            pane.close_active_item(
10299                &CloseActiveItem {
10300                    save_intent: Some(SaveIntent::Close),
10301                    close_pinned: false,
10302                },
10303                window,
10304                cx,
10305            )
10306        });
10307        cx.background_executor.run_until_parked();
10308        assert!(
10309            cx.has_pending_prompt(),
10310            "Dirty multi buffer should prompt a save dialog"
10311        );
10312        cx.simulate_prompt_answer("Save");
10313        cx.background_executor.run_until_parked();
10314        close_multi_buffer_task
10315            .await
10316            .expect("Closing the multi buffer failed");
10317        pane.update(cx, |pane, cx| {
10318            assert_eq!(
10319                dirty_multi_buffer_with_both.read(cx).save_count,
10320                1,
10321                "Multi buffer item should get be saved"
10322            );
10323            // Test impl does not save inner items, so we do not assert them
10324            assert_eq!(
10325                pane.items_len(),
10326                0,
10327                "No more items should be left in the pane"
10328            );
10329            assert!(pane.active_item().is_none());
10330        });
10331    }
10332
10333    #[gpui::test]
10334    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10335        cx: &mut TestAppContext,
10336    ) {
10337        init_test(cx);
10338
10339        let fs = FakeFs::new(cx.background_executor.clone());
10340        let project = Project::test(fs, [], cx).await;
10341        let (workspace, cx) =
10342            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10343        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10344
10345        let dirty_regular_buffer = cx.new(|cx| {
10346            TestItem::new(cx)
10347                .with_dirty(true)
10348                .with_label("1.txt")
10349                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10350        });
10351        let dirty_regular_buffer_2 = cx.new(|cx| {
10352            TestItem::new(cx)
10353                .with_dirty(true)
10354                .with_label("2.txt")
10355                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10356        });
10357        let clear_regular_buffer = cx.new(|cx| {
10358            TestItem::new(cx)
10359                .with_label("3.txt")
10360                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10361        });
10362
10363        let dirty_multi_buffer_with_both = cx.new(|cx| {
10364            TestItem::new(cx)
10365                .with_dirty(true)
10366                .with_buffer_kind(ItemBufferKind::Multibuffer)
10367                .with_label("Fake Project Search")
10368                .with_project_items(&[
10369                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10370                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10371                    clear_regular_buffer.read(cx).project_items[0].clone(),
10372                ])
10373        });
10374        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10375        workspace.update_in(cx, |workspace, window, cx| {
10376            workspace.add_item(
10377                pane.clone(),
10378                Box::new(dirty_regular_buffer.clone()),
10379                None,
10380                false,
10381                false,
10382                window,
10383                cx,
10384            );
10385            workspace.add_item(
10386                pane.clone(),
10387                Box::new(dirty_multi_buffer_with_both.clone()),
10388                None,
10389                false,
10390                false,
10391                window,
10392                cx,
10393            );
10394        });
10395
10396        pane.update_in(cx, |pane, window, cx| {
10397            pane.activate_item(1, true, true, window, cx);
10398            assert_eq!(
10399                pane.active_item().unwrap().item_id(),
10400                multi_buffer_with_both_files_id,
10401                "Should select the multi buffer in the pane"
10402            );
10403        });
10404        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10405            pane.close_active_item(
10406                &CloseActiveItem {
10407                    save_intent: None,
10408                    close_pinned: false,
10409                },
10410                window,
10411                cx,
10412            )
10413        });
10414        cx.background_executor.run_until_parked();
10415        assert!(
10416            cx.has_pending_prompt(),
10417            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10418        );
10419    }
10420
10421    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10422    /// closed when they are deleted from disk.
10423    #[gpui::test]
10424    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10425        init_test(cx);
10426
10427        // Enable the close_on_disk_deletion setting
10428        cx.update_global(|store: &mut SettingsStore, cx| {
10429            store.update_user_settings(cx, |settings| {
10430                settings.workspace.close_on_file_delete = Some(true);
10431            });
10432        });
10433
10434        let fs = FakeFs::new(cx.background_executor.clone());
10435        let project = Project::test(fs, [], cx).await;
10436        let (workspace, cx) =
10437            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10438        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10439
10440        // Create a test item that simulates a file
10441        let item = cx.new(|cx| {
10442            TestItem::new(cx)
10443                .with_label("test.txt")
10444                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10445        });
10446
10447        // Add item to workspace
10448        workspace.update_in(cx, |workspace, window, cx| {
10449            workspace.add_item(
10450                pane.clone(),
10451                Box::new(item.clone()),
10452                None,
10453                false,
10454                false,
10455                window,
10456                cx,
10457            );
10458        });
10459
10460        // Verify the item is in the pane
10461        pane.read_with(cx, |pane, _| {
10462            assert_eq!(pane.items().count(), 1);
10463        });
10464
10465        // Simulate file deletion by setting the item's deleted state
10466        item.update(cx, |item, _| {
10467            item.set_has_deleted_file(true);
10468        });
10469
10470        // Emit UpdateTab event to trigger the close behavior
10471        cx.run_until_parked();
10472        item.update(cx, |_, cx| {
10473            cx.emit(ItemEvent::UpdateTab);
10474        });
10475
10476        // Allow the close operation to complete
10477        cx.run_until_parked();
10478
10479        // Verify the item was automatically closed
10480        pane.read_with(cx, |pane, _| {
10481            assert_eq!(
10482                pane.items().count(),
10483                0,
10484                "Item should be automatically closed when file is deleted"
10485            );
10486        });
10487    }
10488
10489    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10490    /// open with a strikethrough when they are deleted from disk.
10491    #[gpui::test]
10492    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10493        init_test(cx);
10494
10495        // Ensure close_on_disk_deletion is disabled (default)
10496        cx.update_global(|store: &mut SettingsStore, cx| {
10497            store.update_user_settings(cx, |settings| {
10498                settings.workspace.close_on_file_delete = Some(false);
10499            });
10500        });
10501
10502        let fs = FakeFs::new(cx.background_executor.clone());
10503        let project = Project::test(fs, [], cx).await;
10504        let (workspace, cx) =
10505            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10506        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10507
10508        // Create a test item that simulates a file
10509        let item = cx.new(|cx| {
10510            TestItem::new(cx)
10511                .with_label("test.txt")
10512                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10513        });
10514
10515        // Add item to workspace
10516        workspace.update_in(cx, |workspace, window, cx| {
10517            workspace.add_item(
10518                pane.clone(),
10519                Box::new(item.clone()),
10520                None,
10521                false,
10522                false,
10523                window,
10524                cx,
10525            );
10526        });
10527
10528        // Verify the item is in the pane
10529        pane.read_with(cx, |pane, _| {
10530            assert_eq!(pane.items().count(), 1);
10531        });
10532
10533        // Simulate file deletion
10534        item.update(cx, |item, _| {
10535            item.set_has_deleted_file(true);
10536        });
10537
10538        // Emit UpdateTab event
10539        cx.run_until_parked();
10540        item.update(cx, |_, cx| {
10541            cx.emit(ItemEvent::UpdateTab);
10542        });
10543
10544        // Allow any potential close operation to complete
10545        cx.run_until_parked();
10546
10547        // Verify the item remains open (with strikethrough)
10548        pane.read_with(cx, |pane, _| {
10549            assert_eq!(
10550                pane.items().count(),
10551                1,
10552                "Item should remain open when close_on_disk_deletion is disabled"
10553            );
10554        });
10555
10556        // Verify the item shows as deleted
10557        item.read_with(cx, |item, _| {
10558            assert!(
10559                item.has_deleted_file,
10560                "Item should be marked as having deleted file"
10561            );
10562        });
10563    }
10564
10565    /// Tests that dirty files are not automatically closed when deleted from disk,
10566    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
10567    /// unsaved changes without being prompted.
10568    #[gpui::test]
10569    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10570        init_test(cx);
10571
10572        // Enable the close_on_file_delete setting
10573        cx.update_global(|store: &mut SettingsStore, cx| {
10574            store.update_user_settings(cx, |settings| {
10575                settings.workspace.close_on_file_delete = Some(true);
10576            });
10577        });
10578
10579        let fs = FakeFs::new(cx.background_executor.clone());
10580        let project = Project::test(fs, [], cx).await;
10581        let (workspace, cx) =
10582            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10583        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10584
10585        // Create a dirty test item
10586        let item = cx.new(|cx| {
10587            TestItem::new(cx)
10588                .with_dirty(true)
10589                .with_label("test.txt")
10590                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10591        });
10592
10593        // Add item to workspace
10594        workspace.update_in(cx, |workspace, window, cx| {
10595            workspace.add_item(
10596                pane.clone(),
10597                Box::new(item.clone()),
10598                None,
10599                false,
10600                false,
10601                window,
10602                cx,
10603            );
10604        });
10605
10606        // Simulate file deletion
10607        item.update(cx, |item, _| {
10608            item.set_has_deleted_file(true);
10609        });
10610
10611        // Emit UpdateTab event to trigger the close behavior
10612        cx.run_until_parked();
10613        item.update(cx, |_, cx| {
10614            cx.emit(ItemEvent::UpdateTab);
10615        });
10616
10617        // Allow any potential close operation to complete
10618        cx.run_until_parked();
10619
10620        // Verify the item remains open (dirty files are not auto-closed)
10621        pane.read_with(cx, |pane, _| {
10622            assert_eq!(
10623                pane.items().count(),
10624                1,
10625                "Dirty items should not be automatically closed even when file is deleted"
10626            );
10627        });
10628
10629        // Verify the item is marked as deleted and still dirty
10630        item.read_with(cx, |item, _| {
10631            assert!(
10632                item.has_deleted_file,
10633                "Item should be marked as having deleted file"
10634            );
10635            assert!(item.is_dirty, "Item should still be dirty");
10636        });
10637    }
10638
10639    /// Tests that navigation history is cleaned up when files are auto-closed
10640    /// due to deletion from disk.
10641    #[gpui::test]
10642    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
10643        init_test(cx);
10644
10645        // Enable the close_on_file_delete setting
10646        cx.update_global(|store: &mut SettingsStore, cx| {
10647            store.update_user_settings(cx, |settings| {
10648                settings.workspace.close_on_file_delete = Some(true);
10649            });
10650        });
10651
10652        let fs = FakeFs::new(cx.background_executor.clone());
10653        let project = Project::test(fs, [], cx).await;
10654        let (workspace, cx) =
10655            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10656        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10657
10658        // Create test items
10659        let item1 = cx.new(|cx| {
10660            TestItem::new(cx)
10661                .with_label("test1.txt")
10662                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
10663        });
10664        let item1_id = item1.item_id();
10665
10666        let item2 = cx.new(|cx| {
10667            TestItem::new(cx)
10668                .with_label("test2.txt")
10669                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
10670        });
10671
10672        // Add items to workspace
10673        workspace.update_in(cx, |workspace, window, cx| {
10674            workspace.add_item(
10675                pane.clone(),
10676                Box::new(item1.clone()),
10677                None,
10678                false,
10679                false,
10680                window,
10681                cx,
10682            );
10683            workspace.add_item(
10684                pane.clone(),
10685                Box::new(item2.clone()),
10686                None,
10687                false,
10688                false,
10689                window,
10690                cx,
10691            );
10692        });
10693
10694        // Activate item1 to ensure it gets navigation entries
10695        pane.update_in(cx, |pane, window, cx| {
10696            pane.activate_item(0, true, true, window, cx);
10697        });
10698
10699        // Switch to item2 and back to create navigation history
10700        pane.update_in(cx, |pane, window, cx| {
10701            pane.activate_item(1, true, true, window, cx);
10702        });
10703        cx.run_until_parked();
10704
10705        pane.update_in(cx, |pane, window, cx| {
10706            pane.activate_item(0, true, true, window, cx);
10707        });
10708        cx.run_until_parked();
10709
10710        // Simulate file deletion for item1
10711        item1.update(cx, |item, _| {
10712            item.set_has_deleted_file(true);
10713        });
10714
10715        // Emit UpdateTab event to trigger the close behavior
10716        item1.update(cx, |_, cx| {
10717            cx.emit(ItemEvent::UpdateTab);
10718        });
10719        cx.run_until_parked();
10720
10721        // Verify item1 was closed
10722        pane.read_with(cx, |pane, _| {
10723            assert_eq!(
10724                pane.items().count(),
10725                1,
10726                "Should have 1 item remaining after auto-close"
10727            );
10728        });
10729
10730        // Check navigation history after close
10731        let has_item = pane.read_with(cx, |pane, cx| {
10732            let mut has_item = false;
10733            pane.nav_history().for_each_entry(cx, |entry, _| {
10734                if entry.item.id() == item1_id {
10735                    has_item = true;
10736                }
10737            });
10738            has_item
10739        });
10740
10741        assert!(
10742            !has_item,
10743            "Navigation history should not contain closed item entries"
10744        );
10745    }
10746
10747    #[gpui::test]
10748    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10749        cx: &mut TestAppContext,
10750    ) {
10751        init_test(cx);
10752
10753        let fs = FakeFs::new(cx.background_executor.clone());
10754        let project = Project::test(fs, [], cx).await;
10755        let (workspace, cx) =
10756            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10757        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10758
10759        let dirty_regular_buffer = cx.new(|cx| {
10760            TestItem::new(cx)
10761                .with_dirty(true)
10762                .with_label("1.txt")
10763                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10764        });
10765        let dirty_regular_buffer_2 = cx.new(|cx| {
10766            TestItem::new(cx)
10767                .with_dirty(true)
10768                .with_label("2.txt")
10769                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10770        });
10771        let clear_regular_buffer = cx.new(|cx| {
10772            TestItem::new(cx)
10773                .with_label("3.txt")
10774                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10775        });
10776
10777        let dirty_multi_buffer = cx.new(|cx| {
10778            TestItem::new(cx)
10779                .with_dirty(true)
10780                .with_buffer_kind(ItemBufferKind::Multibuffer)
10781                .with_label("Fake Project Search")
10782                .with_project_items(&[
10783                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10784                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10785                    clear_regular_buffer.read(cx).project_items[0].clone(),
10786                ])
10787        });
10788        workspace.update_in(cx, |workspace, window, cx| {
10789            workspace.add_item(
10790                pane.clone(),
10791                Box::new(dirty_regular_buffer.clone()),
10792                None,
10793                false,
10794                false,
10795                window,
10796                cx,
10797            );
10798            workspace.add_item(
10799                pane.clone(),
10800                Box::new(dirty_regular_buffer_2.clone()),
10801                None,
10802                false,
10803                false,
10804                window,
10805                cx,
10806            );
10807            workspace.add_item(
10808                pane.clone(),
10809                Box::new(dirty_multi_buffer.clone()),
10810                None,
10811                false,
10812                false,
10813                window,
10814                cx,
10815            );
10816        });
10817
10818        pane.update_in(cx, |pane, window, cx| {
10819            pane.activate_item(2, true, true, window, cx);
10820            assert_eq!(
10821                pane.active_item().unwrap().item_id(),
10822                dirty_multi_buffer.item_id(),
10823                "Should select the multi buffer in the pane"
10824            );
10825        });
10826        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10827            pane.close_active_item(
10828                &CloseActiveItem {
10829                    save_intent: None,
10830                    close_pinned: false,
10831                },
10832                window,
10833                cx,
10834            )
10835        });
10836        cx.background_executor.run_until_parked();
10837        assert!(
10838            !cx.has_pending_prompt(),
10839            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10840        );
10841        close_multi_buffer_task
10842            .await
10843            .expect("Closing multi buffer failed");
10844        pane.update(cx, |pane, cx| {
10845            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10846            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10847            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10848            assert_eq!(
10849                pane.items()
10850                    .map(|item| item.item_id())
10851                    .sorted()
10852                    .collect::<Vec<_>>(),
10853                vec![
10854                    dirty_regular_buffer.item_id(),
10855                    dirty_regular_buffer_2.item_id(),
10856                ],
10857                "Should have no multi buffer left in the pane"
10858            );
10859            assert!(dirty_regular_buffer.read(cx).is_dirty);
10860            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10861        });
10862    }
10863
10864    #[gpui::test]
10865    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10866        init_test(cx);
10867        let fs = FakeFs::new(cx.executor());
10868        let project = Project::test(fs, [], cx).await;
10869        let (workspace, cx) =
10870            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10871
10872        // Add a new panel to the right dock, opening the dock and setting the
10873        // focus to the new panel.
10874        let panel = workspace.update_in(cx, |workspace, window, cx| {
10875            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10876            workspace.add_panel(panel.clone(), window, cx);
10877
10878            workspace
10879                .right_dock()
10880                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10881
10882            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10883
10884            panel
10885        });
10886
10887        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10888        // panel to the next valid position which, in this case, is the left
10889        // dock.
10890        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10891        workspace.update(cx, |workspace, cx| {
10892            assert!(workspace.left_dock().read(cx).is_open());
10893            assert_eq!(panel.read(cx).position, DockPosition::Left);
10894        });
10895
10896        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10897        // panel to the next valid position which, in this case, is the bottom
10898        // dock.
10899        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10900        workspace.update(cx, |workspace, cx| {
10901            assert!(workspace.bottom_dock().read(cx).is_open());
10902            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10903        });
10904
10905        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10906        // around moving the panel to its initial position, the right dock.
10907        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10908        workspace.update(cx, |workspace, cx| {
10909            assert!(workspace.right_dock().read(cx).is_open());
10910            assert_eq!(panel.read(cx).position, DockPosition::Right);
10911        });
10912
10913        // Remove focus from the panel, ensuring that, if the panel is not
10914        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10915        // the panel's position, so the panel is still in the right dock.
10916        workspace.update_in(cx, |workspace, window, cx| {
10917            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10918        });
10919
10920        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10921        workspace.update(cx, |workspace, cx| {
10922            assert!(workspace.right_dock().read(cx).is_open());
10923            assert_eq!(panel.read(cx).position, DockPosition::Right);
10924        });
10925    }
10926
10927    #[gpui::test]
10928    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10929        init_test(cx);
10930
10931        let fs = FakeFs::new(cx.executor());
10932        let project = Project::test(fs, [], cx).await;
10933        let (workspace, cx) =
10934            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10935
10936        let item_1 = cx.new(|cx| {
10937            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10938        });
10939        workspace.update_in(cx, |workspace, window, cx| {
10940            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10941            workspace.move_item_to_pane_in_direction(
10942                &MoveItemToPaneInDirection {
10943                    direction: SplitDirection::Right,
10944                    focus: true,
10945                    clone: false,
10946                },
10947                window,
10948                cx,
10949            );
10950            workspace.move_item_to_pane_at_index(
10951                &MoveItemToPane {
10952                    destination: 3,
10953                    focus: true,
10954                    clone: false,
10955                },
10956                window,
10957                cx,
10958            );
10959
10960            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10961            assert_eq!(
10962                pane_items_paths(&workspace.active_pane, cx),
10963                vec!["first.txt".to_string()],
10964                "Single item was not moved anywhere"
10965            );
10966        });
10967
10968        let item_2 = cx.new(|cx| {
10969            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10970        });
10971        workspace.update_in(cx, |workspace, window, cx| {
10972            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10973            assert_eq!(
10974                pane_items_paths(&workspace.panes[0], cx),
10975                vec!["first.txt".to_string(), "second.txt".to_string()],
10976            );
10977            workspace.move_item_to_pane_in_direction(
10978                &MoveItemToPaneInDirection {
10979                    direction: SplitDirection::Right,
10980                    focus: true,
10981                    clone: false,
10982                },
10983                window,
10984                cx,
10985            );
10986
10987            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10988            assert_eq!(
10989                pane_items_paths(&workspace.panes[0], cx),
10990                vec!["first.txt".to_string()],
10991                "After moving, one item should be left in the original pane"
10992            );
10993            assert_eq!(
10994                pane_items_paths(&workspace.panes[1], cx),
10995                vec!["second.txt".to_string()],
10996                "New item should have been moved to the new pane"
10997            );
10998        });
10999
11000        let item_3 = cx.new(|cx| {
11001            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11002        });
11003        workspace.update_in(cx, |workspace, window, cx| {
11004            let original_pane = workspace.panes[0].clone();
11005            workspace.set_active_pane(&original_pane, window, cx);
11006            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11007            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11008            assert_eq!(
11009                pane_items_paths(&workspace.active_pane, cx),
11010                vec!["first.txt".to_string(), "third.txt".to_string()],
11011                "New pane should be ready to move one item out"
11012            );
11013
11014            workspace.move_item_to_pane_at_index(
11015                &MoveItemToPane {
11016                    destination: 3,
11017                    focus: true,
11018                    clone: false,
11019                },
11020                window,
11021                cx,
11022            );
11023            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11024            assert_eq!(
11025                pane_items_paths(&workspace.active_pane, cx),
11026                vec!["first.txt".to_string()],
11027                "After moving, one item should be left in the original pane"
11028            );
11029            assert_eq!(
11030                pane_items_paths(&workspace.panes[1], cx),
11031                vec!["second.txt".to_string()],
11032                "Previously created pane should be unchanged"
11033            );
11034            assert_eq!(
11035                pane_items_paths(&workspace.panes[2], cx),
11036                vec!["third.txt".to_string()],
11037                "New item should have been moved to the new pane"
11038            );
11039        });
11040    }
11041
11042    #[gpui::test]
11043    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11044        init_test(cx);
11045
11046        let fs = FakeFs::new(cx.executor());
11047        let project = Project::test(fs, [], cx).await;
11048        let (workspace, cx) =
11049            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11050
11051        let item_1 = cx.new(|cx| {
11052            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11053        });
11054        workspace.update_in(cx, |workspace, window, cx| {
11055            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11056            workspace.move_item_to_pane_in_direction(
11057                &MoveItemToPaneInDirection {
11058                    direction: SplitDirection::Right,
11059                    focus: true,
11060                    clone: true,
11061                },
11062                window,
11063                cx,
11064            );
11065            workspace.move_item_to_pane_at_index(
11066                &MoveItemToPane {
11067                    destination: 3,
11068                    focus: true,
11069                    clone: true,
11070                },
11071                window,
11072                cx,
11073            );
11074        });
11075        cx.run_until_parked();
11076
11077        workspace.update(cx, |workspace, cx| {
11078            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11079            for pane in workspace.panes() {
11080                assert_eq!(
11081                    pane_items_paths(pane, cx),
11082                    vec!["first.txt".to_string()],
11083                    "Single item exists in all panes"
11084                );
11085            }
11086        });
11087
11088        // verify that the active pane has been updated after waiting for the
11089        // pane focus event to fire and resolve
11090        workspace.read_with(cx, |workspace, _app| {
11091            assert_eq!(
11092                workspace.active_pane(),
11093                &workspace.panes[2],
11094                "The third pane should be the active one: {:?}",
11095                workspace.panes
11096            );
11097        })
11098    }
11099
11100    mod register_project_item_tests {
11101
11102        use super::*;
11103
11104        // View
11105        struct TestPngItemView {
11106            focus_handle: FocusHandle,
11107        }
11108        // Model
11109        struct TestPngItem {}
11110
11111        impl project::ProjectItem for TestPngItem {
11112            fn try_open(
11113                _project: &Entity<Project>,
11114                path: &ProjectPath,
11115                cx: &mut App,
11116            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11117                if path.path.extension().unwrap() == "png" {
11118                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11119                } else {
11120                    None
11121                }
11122            }
11123
11124            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11125                None
11126            }
11127
11128            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11129                None
11130            }
11131
11132            fn is_dirty(&self) -> bool {
11133                false
11134            }
11135        }
11136
11137        impl Item for TestPngItemView {
11138            type Event = ();
11139            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11140                "".into()
11141            }
11142        }
11143        impl EventEmitter<()> for TestPngItemView {}
11144        impl Focusable for TestPngItemView {
11145            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11146                self.focus_handle.clone()
11147            }
11148        }
11149
11150        impl Render for TestPngItemView {
11151            fn render(
11152                &mut self,
11153                _window: &mut Window,
11154                _cx: &mut Context<Self>,
11155            ) -> impl IntoElement {
11156                Empty
11157            }
11158        }
11159
11160        impl ProjectItem for TestPngItemView {
11161            type Item = TestPngItem;
11162
11163            fn for_project_item(
11164                _project: Entity<Project>,
11165                _pane: Option<&Pane>,
11166                _item: Entity<Self::Item>,
11167                _: &mut Window,
11168                cx: &mut Context<Self>,
11169            ) -> Self
11170            where
11171                Self: Sized,
11172            {
11173                Self {
11174                    focus_handle: cx.focus_handle(),
11175                }
11176            }
11177        }
11178
11179        // View
11180        struct TestIpynbItemView {
11181            focus_handle: FocusHandle,
11182        }
11183        // Model
11184        struct TestIpynbItem {}
11185
11186        impl project::ProjectItem for TestIpynbItem {
11187            fn try_open(
11188                _project: &Entity<Project>,
11189                path: &ProjectPath,
11190                cx: &mut App,
11191            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11192                if path.path.extension().unwrap() == "ipynb" {
11193                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11194                } else {
11195                    None
11196                }
11197            }
11198
11199            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11200                None
11201            }
11202
11203            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11204                None
11205            }
11206
11207            fn is_dirty(&self) -> bool {
11208                false
11209            }
11210        }
11211
11212        impl Item for TestIpynbItemView {
11213            type Event = ();
11214            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11215                "".into()
11216            }
11217        }
11218        impl EventEmitter<()> for TestIpynbItemView {}
11219        impl Focusable for TestIpynbItemView {
11220            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11221                self.focus_handle.clone()
11222            }
11223        }
11224
11225        impl Render for TestIpynbItemView {
11226            fn render(
11227                &mut self,
11228                _window: &mut Window,
11229                _cx: &mut Context<Self>,
11230            ) -> impl IntoElement {
11231                Empty
11232            }
11233        }
11234
11235        impl ProjectItem for TestIpynbItemView {
11236            type Item = TestIpynbItem;
11237
11238            fn for_project_item(
11239                _project: Entity<Project>,
11240                _pane: Option<&Pane>,
11241                _item: Entity<Self::Item>,
11242                _: &mut Window,
11243                cx: &mut Context<Self>,
11244            ) -> Self
11245            where
11246                Self: Sized,
11247            {
11248                Self {
11249                    focus_handle: cx.focus_handle(),
11250                }
11251            }
11252        }
11253
11254        struct TestAlternatePngItemView {
11255            focus_handle: FocusHandle,
11256        }
11257
11258        impl Item for TestAlternatePngItemView {
11259            type Event = ();
11260            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11261                "".into()
11262            }
11263        }
11264
11265        impl EventEmitter<()> for TestAlternatePngItemView {}
11266        impl Focusable for TestAlternatePngItemView {
11267            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11268                self.focus_handle.clone()
11269            }
11270        }
11271
11272        impl Render for TestAlternatePngItemView {
11273            fn render(
11274                &mut self,
11275                _window: &mut Window,
11276                _cx: &mut Context<Self>,
11277            ) -> impl IntoElement {
11278                Empty
11279            }
11280        }
11281
11282        impl ProjectItem for TestAlternatePngItemView {
11283            type Item = TestPngItem;
11284
11285            fn for_project_item(
11286                _project: Entity<Project>,
11287                _pane: Option<&Pane>,
11288                _item: Entity<Self::Item>,
11289                _: &mut Window,
11290                cx: &mut Context<Self>,
11291            ) -> Self
11292            where
11293                Self: Sized,
11294            {
11295                Self {
11296                    focus_handle: cx.focus_handle(),
11297                }
11298            }
11299        }
11300
11301        #[gpui::test]
11302        async fn test_register_project_item(cx: &mut TestAppContext) {
11303            init_test(cx);
11304
11305            cx.update(|cx| {
11306                register_project_item::<TestPngItemView>(cx);
11307                register_project_item::<TestIpynbItemView>(cx);
11308            });
11309
11310            let fs = FakeFs::new(cx.executor());
11311            fs.insert_tree(
11312                "/root1",
11313                json!({
11314                    "one.png": "BINARYDATAHERE",
11315                    "two.ipynb": "{ totally a notebook }",
11316                    "three.txt": "editing text, sure why not?"
11317                }),
11318            )
11319            .await;
11320
11321            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11322            let (workspace, cx) =
11323                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11324
11325            let worktree_id = project.update(cx, |project, cx| {
11326                project.worktrees(cx).next().unwrap().read(cx).id()
11327            });
11328
11329            let handle = workspace
11330                .update_in(cx, |workspace, window, cx| {
11331                    let project_path = (worktree_id, rel_path("one.png"));
11332                    workspace.open_path(project_path, None, true, window, cx)
11333                })
11334                .await
11335                .unwrap();
11336
11337            // Now we can check if the handle we got back errored or not
11338            assert_eq!(
11339                handle.to_any_view().entity_type(),
11340                TypeId::of::<TestPngItemView>()
11341            );
11342
11343            let handle = workspace
11344                .update_in(cx, |workspace, window, cx| {
11345                    let project_path = (worktree_id, rel_path("two.ipynb"));
11346                    workspace.open_path(project_path, None, true, window, cx)
11347                })
11348                .await
11349                .unwrap();
11350
11351            assert_eq!(
11352                handle.to_any_view().entity_type(),
11353                TypeId::of::<TestIpynbItemView>()
11354            );
11355
11356            let handle = workspace
11357                .update_in(cx, |workspace, window, cx| {
11358                    let project_path = (worktree_id, rel_path("three.txt"));
11359                    workspace.open_path(project_path, None, true, window, cx)
11360                })
11361                .await;
11362            assert!(handle.is_err());
11363        }
11364
11365        #[gpui::test]
11366        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11367            init_test(cx);
11368
11369            cx.update(|cx| {
11370                register_project_item::<TestPngItemView>(cx);
11371                register_project_item::<TestAlternatePngItemView>(cx);
11372            });
11373
11374            let fs = FakeFs::new(cx.executor());
11375            fs.insert_tree(
11376                "/root1",
11377                json!({
11378                    "one.png": "BINARYDATAHERE",
11379                    "two.ipynb": "{ totally a notebook }",
11380                    "three.txt": "editing text, sure why not?"
11381                }),
11382            )
11383            .await;
11384            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11385            let (workspace, cx) =
11386                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11387            let worktree_id = project.update(cx, |project, cx| {
11388                project.worktrees(cx).next().unwrap().read(cx).id()
11389            });
11390
11391            let handle = workspace
11392                .update_in(cx, |workspace, window, cx| {
11393                    let project_path = (worktree_id, rel_path("one.png"));
11394                    workspace.open_path(project_path, None, true, window, cx)
11395                })
11396                .await
11397                .unwrap();
11398
11399            // This _must_ be the second item registered
11400            assert_eq!(
11401                handle.to_any_view().entity_type(),
11402                TypeId::of::<TestAlternatePngItemView>()
11403            );
11404
11405            let handle = workspace
11406                .update_in(cx, |workspace, window, cx| {
11407                    let project_path = (worktree_id, rel_path("three.txt"));
11408                    workspace.open_path(project_path, None, true, window, cx)
11409                })
11410                .await;
11411            assert!(handle.is_err());
11412        }
11413    }
11414
11415    #[gpui::test]
11416    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11417        init_test(cx);
11418
11419        let fs = FakeFs::new(cx.executor());
11420        let project = Project::test(fs, [], cx).await;
11421        let (workspace, _cx) =
11422            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11423
11424        // Test with status bar shown (default)
11425        workspace.read_with(cx, |workspace, cx| {
11426            let visible = workspace.status_bar_visible(cx);
11427            assert!(visible, "Status bar should be visible by default");
11428        });
11429
11430        // Test with status bar hidden
11431        cx.update_global(|store: &mut SettingsStore, cx| {
11432            store.update_user_settings(cx, |settings| {
11433                settings.status_bar.get_or_insert_default().show = Some(false);
11434            });
11435        });
11436
11437        workspace.read_with(cx, |workspace, cx| {
11438            let visible = workspace.status_bar_visible(cx);
11439            assert!(!visible, "Status bar should be hidden when show is false");
11440        });
11441
11442        // Test with status bar shown explicitly
11443        cx.update_global(|store: &mut SettingsStore, cx| {
11444            store.update_user_settings(cx, |settings| {
11445                settings.status_bar.get_or_insert_default().show = Some(true);
11446            });
11447        });
11448
11449        workspace.read_with(cx, |workspace, cx| {
11450            let visible = workspace.status_bar_visible(cx);
11451            assert!(visible, "Status bar should be visible when show is true");
11452        });
11453    }
11454
11455    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11456        pane.read(cx)
11457            .items()
11458            .flat_map(|item| {
11459                item.project_paths(cx)
11460                    .into_iter()
11461                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11462            })
11463            .collect()
11464    }
11465
11466    pub fn init_test(cx: &mut TestAppContext) {
11467        cx.update(|cx| {
11468            let settings_store = SettingsStore::test(cx);
11469            cx.set_global(settings_store);
11470            theme::init(theme::LoadThemes::JustBase, cx);
11471        });
11472    }
11473
11474    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11475        let item = TestProjectItem::new(id, path, cx);
11476        item.update(cx, |item, _| {
11477            item.is_dirty = true;
11478        });
11479        item
11480    }
11481}