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