workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_buffer_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::{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::{Arc, LazyLock, Weak, atomic::AtomicUsize},
  106    time::Duration,
  107};
  108use task::{DebugScenario, SpawnInTerminal, TaskContext};
  109use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  110pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  111pub use ui;
  112use ui::{Window, prelude::*};
  113use util::{
  114    ResultExt, TryFutureExt,
  115    paths::{PathStyle, SanitizedPath},
  116    rel_path::RelPath,
  117    serde::default_true,
  118};
  119use uuid::Uuid;
  120pub use workspace_settings::{
  121    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  122    WorkspaceSettings,
  123};
  124use zed_actions::{Spawn, feedback::FileBugReport};
  125
  126use crate::persistence::{
  127    SerializedAxis,
  128    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  129};
  130use crate::{item::ItemBufferKind, notifications::NotificationId};
  131
  132pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  133
  134static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  135    env::var("ZED_WINDOW_SIZE")
  136        .ok()
  137        .as_deref()
  138        .and_then(parse_pixel_size_env_var)
  139});
  140
  141static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  142    env::var("ZED_WINDOW_POSITION")
  143        .ok()
  144        .as_deref()
  145        .and_then(parse_pixel_position_env_var)
  146});
  147
  148pub trait TerminalProvider {
  149    fn spawn(
  150        &self,
  151        task: SpawnInTerminal,
  152        window: &mut Window,
  153        cx: &mut App,
  154    ) -> Task<Option<Result<ExitStatus>>>;
  155}
  156
  157pub trait DebuggerProvider {
  158    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  159    fn start_session(
  160        &self,
  161        definition: DebugScenario,
  162        task_context: TaskContext,
  163        active_buffer: Option<Entity<Buffer>>,
  164        worktree_id: Option<WorktreeId>,
  165        window: &mut Window,
  166        cx: &mut App,
  167    );
  168
  169    fn spawn_task_or_modal(
  170        &self,
  171        workspace: &mut Workspace,
  172        action: &Spawn,
  173        window: &mut Window,
  174        cx: &mut Context<Workspace>,
  175    );
  176
  177    fn task_scheduled(&self, cx: &mut App);
  178    fn debug_scenario_scheduled(&self, cx: &mut App);
  179    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  180
  181    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  182}
  183
  184actions!(
  185    workspace,
  186    [
  187        /// Activates the next pane in the workspace.
  188        ActivateNextPane,
  189        /// Activates the previous pane in the workspace.
  190        ActivatePreviousPane,
  191        /// Switches to the next window.
  192        ActivateNextWindow,
  193        /// Switches to the previous window.
  194        ActivatePreviousWindow,
  195        /// Adds a folder to the current project.
  196        AddFolderToProject,
  197        /// Clears all notifications.
  198        ClearAllNotifications,
  199        /// Closes the active dock.
  200        CloseActiveDock,
  201        /// Closes all docks.
  202        CloseAllDocks,
  203        /// Closes the current window.
  204        CloseWindow,
  205        /// Opens the feedback dialog.
  206        Feedback,
  207        /// Follows the next collaborator in the session.
  208        FollowNextCollaborator,
  209        /// Moves the focused panel to the next position.
  210        MoveFocusedPanelToNextPosition,
  211        /// Opens a new terminal in the center.
  212        NewCenterTerminal,
  213        /// Creates a new file.
  214        NewFile,
  215        /// Creates a new file in a vertical split.
  216        NewFileSplitVertical,
  217        /// Creates a new file in a horizontal split.
  218        NewFileSplitHorizontal,
  219        /// Opens a new search.
  220        NewSearch,
  221        /// Opens a new terminal.
  222        NewTerminal,
  223        /// Opens a new window.
  224        NewWindow,
  225        /// Opens a file or directory.
  226        Open,
  227        /// Opens multiple files.
  228        OpenFiles,
  229        /// Opens the current location in terminal.
  230        OpenInTerminal,
  231        /// Opens the component preview.
  232        OpenComponentPreview,
  233        /// Reloads the active item.
  234        ReloadActiveItem,
  235        /// Resets the active dock to its default size.
  236        ResetActiveDockSize,
  237        /// Resets all open docks to their default sizes.
  238        ResetOpenDocksSize,
  239        /// Reloads the application
  240        Reload,
  241        /// Saves the current file with a new name.
  242        SaveAs,
  243        /// Saves without formatting.
  244        SaveWithoutFormat,
  245        /// Shuts down all debug adapters.
  246        ShutdownDebugAdapters,
  247        /// Suppresses the current notification.
  248        SuppressNotification,
  249        /// Toggles the bottom dock.
  250        ToggleBottomDock,
  251        /// Toggles centered layout mode.
  252        ToggleCenteredLayout,
  253        /// Toggles edit prediction feature globally for all files.
  254        ToggleEditPrediction,
  255        /// Toggles the left dock.
  256        ToggleLeftDock,
  257        /// Toggles the right dock.
  258        ToggleRightDock,
  259        /// Toggles zoom on the active pane.
  260        ToggleZoom,
  261        /// Stops following a collaborator.
  262        Unfollow,
  263        /// Restores the banner.
  264        RestoreBanner,
  265        /// Toggles expansion of the selected item.
  266        ToggleExpandItem,
  267    ]
  268);
  269
  270/// Activates a specific pane by its index.
  271#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  272#[action(namespace = workspace)]
  273pub struct ActivatePane(pub usize);
  274
  275/// Moves an item to a specific pane by index.
  276#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  277#[action(namespace = workspace)]
  278#[serde(deny_unknown_fields)]
  279pub struct MoveItemToPane {
  280    #[serde(default = "default_1")]
  281    pub destination: usize,
  282    #[serde(default = "default_true")]
  283    pub focus: bool,
  284    #[serde(default)]
  285    pub clone: bool,
  286}
  287
  288fn default_1() -> usize {
  289    1
  290}
  291
  292/// Moves an item to a pane in the specified direction.
  293#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  294#[action(namespace = workspace)]
  295#[serde(deny_unknown_fields)]
  296pub struct MoveItemToPaneInDirection {
  297    #[serde(default = "default_right")]
  298    pub direction: SplitDirection,
  299    #[serde(default = "default_true")]
  300    pub focus: bool,
  301    #[serde(default)]
  302    pub clone: bool,
  303}
  304
  305fn default_right() -> SplitDirection {
  306    SplitDirection::Right
  307}
  308
  309/// Saves all open files in the workspace.
  310#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  311#[action(namespace = workspace)]
  312#[serde(deny_unknown_fields)]
  313pub struct SaveAll {
  314    #[serde(default)]
  315    pub save_intent: Option<SaveIntent>,
  316}
  317
  318/// Saves the current file with the specified options.
  319#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  320#[action(namespace = workspace)]
  321#[serde(deny_unknown_fields)]
  322pub struct Save {
  323    #[serde(default)]
  324    pub save_intent: Option<SaveIntent>,
  325}
  326
  327/// Closes all items and panes in the workspace.
  328#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  329#[action(namespace = workspace)]
  330#[serde(deny_unknown_fields)]
  331pub struct CloseAllItemsAndPanes {
  332    #[serde(default)]
  333    pub save_intent: Option<SaveIntent>,
  334}
  335
  336/// Closes all inactive tabs and panes in the workspace.
  337#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  338#[action(namespace = workspace)]
  339#[serde(deny_unknown_fields)]
  340pub struct CloseInactiveTabsAndPanes {
  341    #[serde(default)]
  342    pub save_intent: Option<SaveIntent>,
  343}
  344
  345/// Sends a sequence of keystrokes to the active element.
  346#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  347#[action(namespace = workspace)]
  348pub struct SendKeystrokes(pub String);
  349
  350actions!(
  351    project_symbols,
  352    [
  353        /// Toggles the project symbols search.
  354        #[action(name = "Toggle")]
  355        ToggleProjectSymbols
  356    ]
  357);
  358
  359/// Toggles the file finder interface.
  360#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  361#[action(namespace = file_finder, name = "Toggle")]
  362#[serde(deny_unknown_fields)]
  363pub struct ToggleFileFinder {
  364    #[serde(default)]
  365    pub separate_history: bool,
  366}
  367
  368/// Increases size of a currently focused dock by a given amount of pixels.
  369#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  370#[action(namespace = workspace)]
  371#[serde(deny_unknown_fields)]
  372pub struct IncreaseActiveDockSize {
  373    /// For 0px parameter, uses UI font size value.
  374    #[serde(default)]
  375    pub px: u32,
  376}
  377
  378/// Decreases size of a currently focused dock by a given amount of pixels.
  379#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  380#[action(namespace = workspace)]
  381#[serde(deny_unknown_fields)]
  382pub struct DecreaseActiveDockSize {
  383    /// For 0px parameter, uses UI font size value.
  384    #[serde(default)]
  385    pub px: u32,
  386}
  387
  388/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  389#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  390#[action(namespace = workspace)]
  391#[serde(deny_unknown_fields)]
  392pub struct IncreaseOpenDocksSize {
  393    /// For 0px parameter, uses UI font size value.
  394    #[serde(default)]
  395    pub px: u32,
  396}
  397
  398/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  399#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  400#[action(namespace = workspace)]
  401#[serde(deny_unknown_fields)]
  402pub struct DecreaseOpenDocksSize {
  403    /// For 0px parameter, uses UI font size value.
  404    #[serde(default)]
  405    pub px: u32,
  406}
  407
  408actions!(
  409    workspace,
  410    [
  411        /// Activates the pane to the left.
  412        ActivatePaneLeft,
  413        /// Activates the pane to the right.
  414        ActivatePaneRight,
  415        /// Activates the pane above.
  416        ActivatePaneUp,
  417        /// Activates the pane below.
  418        ActivatePaneDown,
  419        /// Swaps the current pane with the one to the left.
  420        SwapPaneLeft,
  421        /// Swaps the current pane with the one to the right.
  422        SwapPaneRight,
  423        /// Swaps the current pane with the one above.
  424        SwapPaneUp,
  425        /// Swaps the current pane with the one below.
  426        SwapPaneDown,
  427        /// Move the current pane to be at the far left.
  428        MovePaneLeft,
  429        /// Move the current pane to be at the far right.
  430        MovePaneRight,
  431        /// Move the current pane to be at the very top.
  432        MovePaneUp,
  433        /// Move the current pane to be at the very bottom.
  434        MovePaneDown,
  435    ]
  436);
  437
  438#[derive(PartialEq, Eq, Debug)]
  439pub enum CloseIntent {
  440    /// Quit the program entirely.
  441    Quit,
  442    /// Close a window.
  443    CloseWindow,
  444    /// Replace the workspace in an existing window.
  445    ReplaceWindow,
  446}
  447
  448#[derive(Clone)]
  449pub struct Toast {
  450    id: NotificationId,
  451    msg: Cow<'static, str>,
  452    autohide: bool,
  453    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  454}
  455
  456impl Toast {
  457    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  458        Toast {
  459            id,
  460            msg: msg.into(),
  461            on_click: None,
  462            autohide: false,
  463        }
  464    }
  465
  466    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  467    where
  468        M: Into<Cow<'static, str>>,
  469        F: Fn(&mut Window, &mut App) + 'static,
  470    {
  471        self.on_click = Some((message.into(), Arc::new(on_click)));
  472        self
  473    }
  474
  475    pub fn autohide(mut self) -> Self {
  476        self.autohide = true;
  477        self
  478    }
  479}
  480
  481impl PartialEq for Toast {
  482    fn eq(&self, other: &Self) -> bool {
  483        self.id == other.id
  484            && self.msg == other.msg
  485            && self.on_click.is_some() == other.on_click.is_some()
  486    }
  487}
  488
  489/// Opens a new terminal with the specified working directory.
  490#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  491#[action(namespace = workspace)]
  492#[serde(deny_unknown_fields)]
  493pub struct OpenTerminal {
  494    pub working_directory: PathBuf,
  495}
  496
  497#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  498pub struct WorkspaceId(i64);
  499
  500impl StaticColumnCount for WorkspaceId {}
  501impl Bind for WorkspaceId {
  502    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  503        self.0.bind(statement, start_index)
  504    }
  505}
  506impl Column for WorkspaceId {
  507    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  508        i64::column(statement, start_index)
  509            .map(|(i, next_index)| (Self(i), next_index))
  510            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  511    }
  512}
  513impl From<WorkspaceId> for i64 {
  514    fn from(val: WorkspaceId) -> Self {
  515        val.0
  516    }
  517}
  518
  519pub fn init_settings(cx: &mut App) {
  520    WorkspaceSettings::register(cx);
  521    ItemSettings::register(cx);
  522    PreviewTabsSettings::register(cx);
  523    TabBarSettings::register(cx);
  524    StatusBarSettings::register(cx);
  525}
  526
  527fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  528    let paths = cx.prompt_for_paths(options);
  529    cx.spawn(
  530        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  531            Ok(Some(paths)) => {
  532                cx.update(|cx| {
  533                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  534                })
  535                .ok();
  536            }
  537            Ok(None) => {}
  538            Err(err) => {
  539                util::log_err(&err);
  540                cx.update(|cx| {
  541                    if let Some(workspace_window) = cx
  542                        .active_window()
  543                        .and_then(|window| window.downcast::<Workspace>())
  544                    {
  545                        workspace_window
  546                            .update(cx, |workspace, _, cx| {
  547                                workspace.show_portal_error(err.to_string(), cx);
  548                            })
  549                            .ok();
  550                    }
  551                })
  552                .ok();
  553            }
  554        },
  555    )
  556    .detach();
  557}
  558
  559pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  560    init_settings(cx);
  561    component::init();
  562    theme_preview::init(cx);
  563    toast_layer::init(cx);
  564    history_manager::init(cx);
  565
  566    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  567    cx.on_action(|_: &Reload, cx| reload(cx));
  568
  569    cx.on_action({
  570        let app_state = Arc::downgrade(&app_state);
  571        move |_: &Open, cx: &mut App| {
  572            if let Some(app_state) = app_state.upgrade() {
  573                prompt_and_open_paths(
  574                    app_state,
  575                    PathPromptOptions {
  576                        files: true,
  577                        directories: true,
  578                        multiple: true,
  579                        prompt: None,
  580                    },
  581                    cx,
  582                );
  583            }
  584        }
  585    });
  586    cx.on_action({
  587        let app_state = Arc::downgrade(&app_state);
  588        move |_: &OpenFiles, cx: &mut App| {
  589            let directories = cx.can_select_mixed_files_and_dirs();
  590            if let Some(app_state) = app_state.upgrade() {
  591                prompt_and_open_paths(
  592                    app_state,
  593                    PathPromptOptions {
  594                        files: true,
  595                        directories,
  596                        multiple: true,
  597                        prompt: None,
  598                    },
  599                    cx,
  600                );
  601            }
  602        }
  603    });
  604}
  605
  606type BuildProjectItemFn =
  607    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  608
  609type BuildProjectItemForPathFn =
  610    fn(
  611        &Entity<Project>,
  612        &ProjectPath,
  613        &mut Window,
  614        &mut App,
  615    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  616
  617#[derive(Clone, Default)]
  618struct ProjectItemRegistry {
  619    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  620    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  621}
  622
  623impl ProjectItemRegistry {
  624    fn register<T: ProjectItem>(&mut self) {
  625        self.build_project_item_fns_by_type.insert(
  626            TypeId::of::<T::Item>(),
  627            |item, project, pane, window, cx| {
  628                let item = item.downcast().unwrap();
  629                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  630                    as Box<dyn ItemHandle>
  631            },
  632        );
  633        self.build_project_item_for_path_fns
  634            .push(|project, project_path, window, cx| {
  635                let project_path = project_path.clone();
  636                let is_file = project
  637                    .read(cx)
  638                    .entry_for_path(&project_path, cx)
  639                    .is_some_and(|entry| entry.is_file());
  640                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  641                let is_local = project.read(cx).is_local();
  642                let project_item =
  643                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  644                let project = project.clone();
  645                Some(window.spawn(cx, async move |cx| {
  646                    match project_item.await.with_context(|| {
  647                        format!(
  648                            "opening project path {:?}",
  649                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  650                        )
  651                    }) {
  652                        Ok(project_item) => {
  653                            let project_item = project_item;
  654                            let project_entry_id: Option<ProjectEntryId> =
  655                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  656                            let build_workspace_item = Box::new(
  657                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  658                                    Box::new(cx.new(|cx| {
  659                                        T::for_project_item(
  660                                            project,
  661                                            Some(pane),
  662                                            project_item,
  663                                            window,
  664                                            cx,
  665                                        )
  666                                    })) as Box<dyn ItemHandle>
  667                                },
  668                            ) as Box<_>;
  669                            Ok((project_entry_id, build_workspace_item))
  670                        }
  671                        Err(e) => {
  672                            if e.error_code() == ErrorCode::Internal {
  673                                if let Some(abs_path) =
  674                                    entry_abs_path.as_deref().filter(|_| is_file)
  675                                {
  676                                    if let Some(broken_project_item_view) =
  677                                        cx.update(|window, cx| {
  678                                            T::for_broken_project_item(
  679                                                abs_path, is_local, &e, window, cx,
  680                                            )
  681                                        })?
  682                                    {
  683                                        let build_workspace_item = Box::new(
  684                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  685                                                cx.new(|_| broken_project_item_view).boxed_clone()
  686                                            },
  687                                        )
  688                                        as Box<_>;
  689                                        return Ok((None, build_workspace_item));
  690                                    }
  691                                }
  692                            }
  693                            Err(e)
  694                        }
  695                    }
  696                }))
  697            });
  698    }
  699
  700    fn open_path(
  701        &self,
  702        project: &Entity<Project>,
  703        path: &ProjectPath,
  704        window: &mut Window,
  705        cx: &mut App,
  706    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  707        let Some(open_project_item) = self
  708            .build_project_item_for_path_fns
  709            .iter()
  710            .rev()
  711            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  712        else {
  713            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  714        };
  715        open_project_item
  716    }
  717
  718    fn build_item<T: project::ProjectItem>(
  719        &self,
  720        item: Entity<T>,
  721        project: Entity<Project>,
  722        pane: Option<&Pane>,
  723        window: &mut Window,
  724        cx: &mut App,
  725    ) -> Option<Box<dyn ItemHandle>> {
  726        let build = self
  727            .build_project_item_fns_by_type
  728            .get(&TypeId::of::<T>())?;
  729        Some(build(item.into_any(), project, pane, window, cx))
  730    }
  731}
  732
  733type WorkspaceItemBuilder =
  734    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  735
  736impl Global for ProjectItemRegistry {}
  737
  738/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  739/// items will get a chance to open the file, starting from the project item that
  740/// was added last.
  741pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  742    cx.default_global::<ProjectItemRegistry>().register::<I>();
  743}
  744
  745#[derive(Default)]
  746pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  747
  748struct FollowableViewDescriptor {
  749    from_state_proto: fn(
  750        Entity<Workspace>,
  751        ViewId,
  752        &mut Option<proto::view::Variant>,
  753        &mut Window,
  754        &mut App,
  755    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  756    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  757}
  758
  759impl Global for FollowableViewRegistry {}
  760
  761impl FollowableViewRegistry {
  762    pub fn register<I: FollowableItem>(cx: &mut App) {
  763        cx.default_global::<Self>().0.insert(
  764            TypeId::of::<I>(),
  765            FollowableViewDescriptor {
  766                from_state_proto: |workspace, id, state, window, cx| {
  767                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  768                        cx.foreground_executor()
  769                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  770                    })
  771                },
  772                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  773            },
  774        );
  775    }
  776
  777    pub fn from_state_proto(
  778        workspace: Entity<Workspace>,
  779        view_id: ViewId,
  780        mut state: Option<proto::view::Variant>,
  781        window: &mut Window,
  782        cx: &mut App,
  783    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  784        cx.update_default_global(|this: &mut Self, cx| {
  785            this.0.values().find_map(|descriptor| {
  786                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  787            })
  788        })
  789    }
  790
  791    pub fn to_followable_view(
  792        view: impl Into<AnyView>,
  793        cx: &App,
  794    ) -> Option<Box<dyn FollowableItemHandle>> {
  795        let this = cx.try_global::<Self>()?;
  796        let view = view.into();
  797        let descriptor = this.0.get(&view.entity_type())?;
  798        Some((descriptor.to_followable_view)(&view))
  799    }
  800}
  801
  802#[derive(Copy, Clone)]
  803struct SerializableItemDescriptor {
  804    deserialize: fn(
  805        Entity<Project>,
  806        WeakEntity<Workspace>,
  807        WorkspaceId,
  808        ItemId,
  809        &mut Window,
  810        &mut Context<Pane>,
  811    ) -> Task<Result<Box<dyn ItemHandle>>>,
  812    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  813    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  814}
  815
  816#[derive(Default)]
  817struct SerializableItemRegistry {
  818    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  819    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  820}
  821
  822impl Global for SerializableItemRegistry {}
  823
  824impl SerializableItemRegistry {
  825    fn deserialize(
  826        item_kind: &str,
  827        project: Entity<Project>,
  828        workspace: WeakEntity<Workspace>,
  829        workspace_id: WorkspaceId,
  830        item_item: ItemId,
  831        window: &mut Window,
  832        cx: &mut Context<Pane>,
  833    ) -> Task<Result<Box<dyn ItemHandle>>> {
  834        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  835            return Task::ready(Err(anyhow!(
  836                "cannot deserialize {}, descriptor not found",
  837                item_kind
  838            )));
  839        };
  840
  841        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  842    }
  843
  844    fn cleanup(
  845        item_kind: &str,
  846        workspace_id: WorkspaceId,
  847        loaded_items: Vec<ItemId>,
  848        window: &mut Window,
  849        cx: &mut App,
  850    ) -> Task<Result<()>> {
  851        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  852            return Task::ready(Err(anyhow!(
  853                "cannot cleanup {}, descriptor not found",
  854                item_kind
  855            )));
  856        };
  857
  858        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  859    }
  860
  861    fn view_to_serializable_item_handle(
  862        view: AnyView,
  863        cx: &App,
  864    ) -> Option<Box<dyn SerializableItemHandle>> {
  865        let this = cx.try_global::<Self>()?;
  866        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  867        Some((descriptor.view_to_serializable_item)(view))
  868    }
  869
  870    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  871        let this = cx.try_global::<Self>()?;
  872        this.descriptors_by_kind.get(item_kind).copied()
  873    }
  874}
  875
  876pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  877    let serialized_item_kind = I::serialized_item_kind();
  878
  879    let registry = cx.default_global::<SerializableItemRegistry>();
  880    let descriptor = SerializableItemDescriptor {
  881        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  882            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  883            cx.foreground_executor()
  884                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  885        },
  886        cleanup: |workspace_id, loaded_items, window, cx| {
  887            I::cleanup(workspace_id, loaded_items, window, cx)
  888        },
  889        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  890    };
  891    registry
  892        .descriptors_by_kind
  893        .insert(Arc::from(serialized_item_kind), descriptor);
  894    registry
  895        .descriptors_by_type
  896        .insert(TypeId::of::<I>(), descriptor);
  897}
  898
  899pub struct AppState {
  900    pub languages: Arc<LanguageRegistry>,
  901    pub client: Arc<Client>,
  902    pub user_store: Entity<UserStore>,
  903    pub workspace_store: Entity<WorkspaceStore>,
  904    pub fs: Arc<dyn fs::Fs>,
  905    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  906    pub node_runtime: NodeRuntime,
  907    pub session: Entity<AppSession>,
  908}
  909
  910struct GlobalAppState(Weak<AppState>);
  911
  912impl Global for GlobalAppState {}
  913
  914pub struct WorkspaceStore {
  915    workspaces: HashSet<WindowHandle<Workspace>>,
  916    client: Arc<Client>,
  917    _subscriptions: Vec<client::Subscription>,
  918}
  919
  920#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  921pub enum CollaboratorId {
  922    PeerId(PeerId),
  923    Agent,
  924}
  925
  926impl From<PeerId> for CollaboratorId {
  927    fn from(peer_id: PeerId) -> Self {
  928        CollaboratorId::PeerId(peer_id)
  929    }
  930}
  931
  932impl From<&PeerId> for CollaboratorId {
  933    fn from(peer_id: &PeerId) -> Self {
  934        CollaboratorId::PeerId(*peer_id)
  935    }
  936}
  937
  938#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  939struct Follower {
  940    project_id: Option<u64>,
  941    peer_id: PeerId,
  942}
  943
  944impl AppState {
  945    #[track_caller]
  946    pub fn global(cx: &App) -> Weak<Self> {
  947        cx.global::<GlobalAppState>().0.clone()
  948    }
  949    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  950        cx.try_global::<GlobalAppState>()
  951            .map(|state| state.0.clone())
  952    }
  953    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  954        cx.set_global(GlobalAppState(state));
  955    }
  956
  957    #[cfg(any(test, feature = "test-support"))]
  958    pub fn test(cx: &mut App) -> Arc<Self> {
  959        use node_runtime::NodeRuntime;
  960        use session::Session;
  961        use settings::SettingsStore;
  962
  963        if !cx.has_global::<SettingsStore>() {
  964            let settings_store = SettingsStore::test(cx);
  965            cx.set_global(settings_store);
  966        }
  967
  968        let fs = fs::FakeFs::new(cx.background_executor().clone());
  969        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  970        let clock = Arc::new(clock::FakeSystemClock::new());
  971        let http_client = http_client::FakeHttpClient::with_404_response();
  972        let client = Client::new(clock, http_client, cx);
  973        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  974        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  975        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  976
  977        theme::init(theme::LoadThemes::JustBase, cx);
  978        client::init(&client, cx);
  979        crate::init_settings(cx);
  980
  981        Arc::new(Self {
  982            client,
  983            fs,
  984            languages,
  985            user_store,
  986            workspace_store,
  987            node_runtime: NodeRuntime::unavailable(),
  988            build_window_options: |_, _| Default::default(),
  989            session,
  990        })
  991    }
  992}
  993
  994struct DelayedDebouncedEditAction {
  995    task: Option<Task<()>>,
  996    cancel_channel: Option<oneshot::Sender<()>>,
  997}
  998
  999impl DelayedDebouncedEditAction {
 1000    fn new() -> DelayedDebouncedEditAction {
 1001        DelayedDebouncedEditAction {
 1002            task: None,
 1003            cancel_channel: None,
 1004        }
 1005    }
 1006
 1007    fn fire_new<F>(
 1008        &mut self,
 1009        delay: Duration,
 1010        window: &mut Window,
 1011        cx: &mut Context<Workspace>,
 1012        func: F,
 1013    ) where
 1014        F: 'static
 1015            + Send
 1016            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1017    {
 1018        if let Some(channel) = self.cancel_channel.take() {
 1019            _ = channel.send(());
 1020        }
 1021
 1022        let (sender, mut receiver) = oneshot::channel::<()>();
 1023        self.cancel_channel = Some(sender);
 1024
 1025        let previous_task = self.task.take();
 1026        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1027            let mut timer = cx.background_executor().timer(delay).fuse();
 1028            if let Some(previous_task) = previous_task {
 1029                previous_task.await;
 1030            }
 1031
 1032            futures::select_biased! {
 1033                _ = receiver => return,
 1034                    _ = timer => {}
 1035            }
 1036
 1037            if let Some(result) = workspace
 1038                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1039                .log_err()
 1040            {
 1041                result.await.log_err();
 1042            }
 1043        }));
 1044    }
 1045}
 1046
 1047pub enum Event {
 1048    PaneAdded(Entity<Pane>),
 1049    PaneRemoved,
 1050    ItemAdded {
 1051        item: Box<dyn ItemHandle>,
 1052    },
 1053    ActiveItemChanged,
 1054    ItemRemoved {
 1055        item_id: EntityId,
 1056    },
 1057    UserSavedItem {
 1058        pane: WeakEntity<Pane>,
 1059        item: Box<dyn WeakItemHandle>,
 1060        save_intent: SaveIntent,
 1061    },
 1062    ContactRequestedJoin(u64),
 1063    WorkspaceCreated(WeakEntity<Workspace>),
 1064    OpenBundledFile {
 1065        text: Cow<'static, str>,
 1066        title: &'static str,
 1067        language: &'static str,
 1068    },
 1069    ZoomChanged,
 1070    ModalOpened,
 1071}
 1072
 1073#[derive(Debug)]
 1074pub enum OpenVisible {
 1075    All,
 1076    None,
 1077    OnlyFiles,
 1078    OnlyDirectories,
 1079}
 1080
 1081enum WorkspaceLocation {
 1082    // Valid local paths or SSH project to serialize
 1083    Location(SerializedWorkspaceLocation, PathList),
 1084    // No valid location found hence clear session id
 1085    DetachFromSession,
 1086    // No valid location found to serialize
 1087    None,
 1088}
 1089
 1090type PromptForNewPath = Box<
 1091    dyn Fn(
 1092        &mut Workspace,
 1093        DirectoryLister,
 1094        &mut Window,
 1095        &mut Context<Workspace>,
 1096    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1097>;
 1098
 1099type PromptForOpenPath = Box<
 1100    dyn Fn(
 1101        &mut Workspace,
 1102        DirectoryLister,
 1103        &mut Window,
 1104        &mut Context<Workspace>,
 1105    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1106>;
 1107
 1108#[derive(Default)]
 1109struct DispatchingKeystrokes {
 1110    dispatched: HashSet<Vec<Keystroke>>,
 1111    queue: VecDeque<Keystroke>,
 1112    task: Option<Shared<Task<()>>>,
 1113}
 1114
 1115/// Collects everything project-related for a certain window opened.
 1116/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1117///
 1118/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1119/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1120/// that can be used to register a global action to be triggered from any place in the window.
 1121pub struct Workspace {
 1122    weak_self: WeakEntity<Self>,
 1123    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1124    zoomed: Option<AnyWeakView>,
 1125    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1126    zoomed_position: Option<DockPosition>,
 1127    center: PaneGroup,
 1128    left_dock: Entity<Dock>,
 1129    bottom_dock: Entity<Dock>,
 1130    right_dock: Entity<Dock>,
 1131    panes: Vec<Entity<Pane>>,
 1132    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1133    active_pane: Entity<Pane>,
 1134    last_active_center_pane: Option<WeakEntity<Pane>>,
 1135    last_active_view_id: Option<proto::ViewId>,
 1136    status_bar: Entity<StatusBar>,
 1137    modal_layer: Entity<ModalLayer>,
 1138    toast_layer: Entity<ToastLayer>,
 1139    titlebar_item: Option<AnyView>,
 1140    notifications: Notifications,
 1141    suppressed_notifications: HashSet<NotificationId>,
 1142    project: Entity<Project>,
 1143    follower_states: HashMap<CollaboratorId, FollowerState>,
 1144    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1145    window_edited: bool,
 1146    last_window_title: Option<String>,
 1147    dirty_items: HashMap<EntityId, Subscription>,
 1148    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1149    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1150    database_id: Option<WorkspaceId>,
 1151    app_state: Arc<AppState>,
 1152    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1153    _subscriptions: Vec<Subscription>,
 1154    _apply_leader_updates: Task<Result<()>>,
 1155    _observe_current_user: Task<Result<()>>,
 1156    _schedule_serialize_workspace: Option<Task<()>>,
 1157    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1158    pane_history_timestamp: Arc<AtomicUsize>,
 1159    bounds: Bounds<Pixels>,
 1160    pub centered_layout: bool,
 1161    bounds_save_task_queued: Option<Task<()>>,
 1162    on_prompt_for_new_path: Option<PromptForNewPath>,
 1163    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1164    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1165    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1166    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1167    _items_serializer: Task<Result<()>>,
 1168    session_id: Option<String>,
 1169    scheduled_tasks: Vec<Task<()>>,
 1170}
 1171
 1172impl EventEmitter<Event> for Workspace {}
 1173
 1174#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1175pub struct ViewId {
 1176    pub creator: CollaboratorId,
 1177    pub id: u64,
 1178}
 1179
 1180pub struct FollowerState {
 1181    center_pane: Entity<Pane>,
 1182    dock_pane: Option<Entity<Pane>>,
 1183    active_view_id: Option<ViewId>,
 1184    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1185}
 1186
 1187struct FollowerView {
 1188    view: Box<dyn FollowableItemHandle>,
 1189    location: Option<proto::PanelId>,
 1190}
 1191
 1192impl Workspace {
 1193    const DEFAULT_PADDING: f32 = 0.2;
 1194    const MAX_PADDING: f32 = 0.4;
 1195
 1196    pub fn new(
 1197        workspace_id: Option<WorkspaceId>,
 1198        project: Entity<Project>,
 1199        app_state: Arc<AppState>,
 1200        window: &mut Window,
 1201        cx: &mut Context<Self>,
 1202    ) -> Self {
 1203        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1204            match event {
 1205                project::Event::RemoteIdChanged(_) => {
 1206                    this.update_window_title(window, cx);
 1207                }
 1208
 1209                project::Event::CollaboratorLeft(peer_id) => {
 1210                    this.collaborator_left(*peer_id, window, cx);
 1211                }
 1212
 1213                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1214                    this.update_window_title(window, cx);
 1215                    this.serialize_workspace(window, cx);
 1216                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1217                    this.update_history(cx);
 1218                }
 1219
 1220                project::Event::DisconnectedFromHost => {
 1221                    this.update_window_edited(window, cx);
 1222                    let leaders_to_unfollow =
 1223                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1224                    for leader_id in leaders_to_unfollow {
 1225                        this.unfollow(leader_id, window, cx);
 1226                    }
 1227                }
 1228
 1229                project::Event::DisconnectedFromSshRemote => {
 1230                    this.update_window_edited(window, cx);
 1231                }
 1232
 1233                project::Event::Closed => {
 1234                    window.remove_window();
 1235                }
 1236
 1237                project::Event::DeletedEntry(_, entry_id) => {
 1238                    for pane in this.panes.iter() {
 1239                        pane.update(cx, |pane, cx| {
 1240                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1241                        });
 1242                    }
 1243                }
 1244
 1245                project::Event::Toast {
 1246                    notification_id,
 1247                    message,
 1248                } => this.show_notification(
 1249                    NotificationId::named(notification_id.clone()),
 1250                    cx,
 1251                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1252                ),
 1253
 1254                project::Event::HideToast { notification_id } => {
 1255                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1256                }
 1257
 1258                project::Event::LanguageServerPrompt(request) => {
 1259                    struct LanguageServerPrompt;
 1260
 1261                    let mut hasher = DefaultHasher::new();
 1262                    request.lsp_name.as_str().hash(&mut hasher);
 1263                    let id = hasher.finish();
 1264
 1265                    this.show_notification(
 1266                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1267                        cx,
 1268                        |cx| {
 1269                            cx.new(|cx| {
 1270                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1271                            })
 1272                        },
 1273                    );
 1274                }
 1275
 1276                project::Event::AgentLocationChanged => {
 1277                    this.handle_agent_location_changed(window, cx)
 1278                }
 1279
 1280                _ => {}
 1281            }
 1282            cx.notify()
 1283        })
 1284        .detach();
 1285
 1286        cx.subscribe_in(
 1287            &project.read(cx).breakpoint_store(),
 1288            window,
 1289            |workspace, _, event, window, cx| match event {
 1290                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1291                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1292                    workspace.serialize_workspace(window, cx);
 1293                }
 1294                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1295            },
 1296        )
 1297        .detach();
 1298        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1299            cx.subscribe_in(
 1300                &toolchain_store,
 1301                window,
 1302                |workspace, _, event, window, cx| match event {
 1303                    ToolchainStoreEvent::CustomToolchainsModified => {
 1304                        workspace.serialize_workspace(window, cx);
 1305                    }
 1306                    _ => {}
 1307                },
 1308            )
 1309            .detach();
 1310        }
 1311
 1312        cx.on_focus_lost(window, |this, window, cx| {
 1313            let focus_handle = this.focus_handle(cx);
 1314            window.focus(&focus_handle);
 1315        })
 1316        .detach();
 1317
 1318        let weak_handle = cx.entity().downgrade();
 1319        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1320
 1321        let center_pane = cx.new(|cx| {
 1322            let mut center_pane = Pane::new(
 1323                weak_handle.clone(),
 1324                project.clone(),
 1325                pane_history_timestamp.clone(),
 1326                None,
 1327                NewFile.boxed_clone(),
 1328                window,
 1329                cx,
 1330            );
 1331            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1332            center_pane
 1333        });
 1334        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1335            .detach();
 1336
 1337        window.focus(&center_pane.focus_handle(cx));
 1338
 1339        cx.emit(Event::PaneAdded(center_pane.clone()));
 1340
 1341        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1342        app_state.workspace_store.update(cx, |store, _| {
 1343            store.workspaces.insert(window_handle);
 1344        });
 1345
 1346        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1347        let mut connection_status = app_state.client.status();
 1348        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1349            current_user.next().await;
 1350            connection_status.next().await;
 1351            let mut stream =
 1352                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1353
 1354            while stream.recv().await.is_some() {
 1355                this.update(cx, |_, cx| cx.notify())?;
 1356            }
 1357            anyhow::Ok(())
 1358        });
 1359
 1360        // All leader updates are enqueued and then processed in a single task, so
 1361        // that each asynchronous operation can be run in order.
 1362        let (leader_updates_tx, mut leader_updates_rx) =
 1363            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1364        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1365            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1366                Self::process_leader_update(&this, leader_id, update, cx)
 1367                    .await
 1368                    .log_err();
 1369            }
 1370
 1371            Ok(())
 1372        });
 1373
 1374        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1375        let modal_layer = cx.new(|_| ModalLayer::new());
 1376        let toast_layer = cx.new(|_| ToastLayer::new());
 1377        cx.subscribe(
 1378            &modal_layer,
 1379            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1380                cx.emit(Event::ModalOpened);
 1381            },
 1382        )
 1383        .detach();
 1384
 1385        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1386        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1387        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1388        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1389        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1390        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1391        let status_bar = cx.new(|cx| {
 1392            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1393            status_bar.add_left_item(left_dock_buttons, window, cx);
 1394            status_bar.add_right_item(right_dock_buttons, window, cx);
 1395            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1396            status_bar
 1397        });
 1398
 1399        let session_id = app_state.session.read(cx).id().to_owned();
 1400
 1401        let mut active_call = None;
 1402        if let Some(call) = ActiveCall::try_global(cx) {
 1403            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1404            active_call = Some((call, subscriptions));
 1405        }
 1406
 1407        let (serializable_items_tx, serializable_items_rx) =
 1408            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1409        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1410            Self::serialize_items(&this, serializable_items_rx, cx).await
 1411        });
 1412
 1413        let subscriptions = vec![
 1414            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1415            cx.observe_window_bounds(window, move |this, window, cx| {
 1416                if this.bounds_save_task_queued.is_some() {
 1417                    return;
 1418                }
 1419                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1420                    cx.background_executor()
 1421                        .timer(Duration::from_millis(100))
 1422                        .await;
 1423                    this.update_in(cx, |this, window, cx| {
 1424                        if let Some(display) = window.display(cx)
 1425                            && let Ok(display_uuid) = display.uuid()
 1426                        {
 1427                            let window_bounds = window.inner_window_bounds();
 1428                            if let Some(database_id) = workspace_id {
 1429                                cx.background_executor()
 1430                                    .spawn(DB.set_window_open_status(
 1431                                        database_id,
 1432                                        SerializedWindowBounds(window_bounds),
 1433                                        display_uuid,
 1434                                    ))
 1435                                    .detach_and_log_err(cx);
 1436                            }
 1437                        }
 1438                        this.bounds_save_task_queued.take();
 1439                    })
 1440                    .ok();
 1441                }));
 1442                cx.notify();
 1443            }),
 1444            cx.observe_window_appearance(window, |_, window, cx| {
 1445                let window_appearance = window.appearance();
 1446
 1447                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1448
 1449                GlobalTheme::reload_theme(cx);
 1450                GlobalTheme::reload_icon_theme(cx);
 1451            }),
 1452            cx.on_release(move |this, cx| {
 1453                this.app_state.workspace_store.update(cx, move |store, _| {
 1454                    store.workspaces.remove(&window_handle.clone());
 1455                })
 1456            }),
 1457        ];
 1458
 1459        cx.defer_in(window, |this, window, cx| {
 1460            this.update_window_title(window, cx);
 1461            this.show_initial_notifications(cx);
 1462        });
 1463        Workspace {
 1464            weak_self: weak_handle.clone(),
 1465            zoomed: None,
 1466            zoomed_position: None,
 1467            previous_dock_drag_coordinates: None,
 1468            center: PaneGroup::new(center_pane.clone()),
 1469            panes: vec![center_pane.clone()],
 1470            panes_by_item: Default::default(),
 1471            active_pane: center_pane.clone(),
 1472            last_active_center_pane: Some(center_pane.downgrade()),
 1473            last_active_view_id: None,
 1474            status_bar,
 1475            modal_layer,
 1476            toast_layer,
 1477            titlebar_item: None,
 1478            notifications: Notifications::default(),
 1479            suppressed_notifications: HashSet::default(),
 1480            left_dock,
 1481            bottom_dock,
 1482            right_dock,
 1483            project: project.clone(),
 1484            follower_states: Default::default(),
 1485            last_leaders_by_pane: Default::default(),
 1486            dispatching_keystrokes: Default::default(),
 1487            window_edited: false,
 1488            last_window_title: None,
 1489            dirty_items: Default::default(),
 1490            active_call,
 1491            database_id: workspace_id,
 1492            app_state,
 1493            _observe_current_user,
 1494            _apply_leader_updates,
 1495            _schedule_serialize_workspace: None,
 1496            _schedule_serialize_ssh_paths: None,
 1497            leader_updates_tx,
 1498            _subscriptions: subscriptions,
 1499            pane_history_timestamp,
 1500            workspace_actions: Default::default(),
 1501            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1502            bounds: Default::default(),
 1503            centered_layout: false,
 1504            bounds_save_task_queued: None,
 1505            on_prompt_for_new_path: None,
 1506            on_prompt_for_open_path: None,
 1507            terminal_provider: None,
 1508            debugger_provider: None,
 1509            serializable_items_tx,
 1510            _items_serializer,
 1511            session_id: Some(session_id),
 1512
 1513            scheduled_tasks: Vec::new(),
 1514        }
 1515    }
 1516
 1517    pub fn new_local(
 1518        abs_paths: Vec<PathBuf>,
 1519        app_state: Arc<AppState>,
 1520        requesting_window: Option<WindowHandle<Workspace>>,
 1521        env: Option<HashMap<String, String>>,
 1522        cx: &mut App,
 1523    ) -> Task<
 1524        anyhow::Result<(
 1525            WindowHandle<Workspace>,
 1526            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1527        )>,
 1528    > {
 1529        let project_handle = Project::local(
 1530            app_state.client.clone(),
 1531            app_state.node_runtime.clone(),
 1532            app_state.user_store.clone(),
 1533            app_state.languages.clone(),
 1534            app_state.fs.clone(),
 1535            env,
 1536            cx,
 1537        );
 1538
 1539        cx.spawn(async move |cx| {
 1540            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1541            for path in abs_paths.into_iter() {
 1542                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1543                    paths_to_open.push(canonical)
 1544                } else {
 1545                    paths_to_open.push(path)
 1546                }
 1547            }
 1548
 1549            let serialized_workspace =
 1550                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1551
 1552            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1553                paths_to_open = paths.ordered_paths().cloned().collect();
 1554                if !paths.is_lexicographically_ordered() {
 1555                    project_handle
 1556                        .update(cx, |project, cx| {
 1557                            project.set_worktrees_reordered(true, cx);
 1558                        })
 1559                        .log_err();
 1560                }
 1561            }
 1562
 1563            // Get project paths for all of the abs_paths
 1564            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1565                Vec::with_capacity(paths_to_open.len());
 1566
 1567            for path in paths_to_open.into_iter() {
 1568                if let Some((_, project_entry)) = cx
 1569                    .update(|cx| {
 1570                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1571                    })?
 1572                    .await
 1573                    .log_err()
 1574                {
 1575                    project_paths.push((path, Some(project_entry)));
 1576                } else {
 1577                    project_paths.push((path, None));
 1578                }
 1579            }
 1580
 1581            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1582                serialized_workspace.id
 1583            } else {
 1584                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1585            };
 1586
 1587            let toolchains = DB.toolchains(workspace_id).await?;
 1588
 1589            for (toolchain, worktree_id, path) in toolchains {
 1590                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1591                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1592                    continue;
 1593                }
 1594
 1595                project_handle
 1596                    .update(cx, |this, cx| {
 1597                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1598                    })?
 1599                    .await;
 1600            }
 1601            if let Some(workspace) = serialized_workspace.as_ref() {
 1602                project_handle.update(cx, |this, cx| {
 1603                    for (scope, toolchains) in &workspace.user_toolchains {
 1604                        for toolchain in toolchains {
 1605                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1606                        }
 1607                    }
 1608                })?;
 1609            }
 1610
 1611            let window = if let Some(window) = requesting_window {
 1612                let centered_layout = serialized_workspace
 1613                    .as_ref()
 1614                    .map(|w| w.centered_layout)
 1615                    .unwrap_or(false);
 1616
 1617                cx.update_window(window.into(), |_, window, cx| {
 1618                    window.replace_root(cx, |window, cx| {
 1619                        let mut workspace = Workspace::new(
 1620                            Some(workspace_id),
 1621                            project_handle.clone(),
 1622                            app_state.clone(),
 1623                            window,
 1624                            cx,
 1625                        );
 1626
 1627                        workspace.centered_layout = centered_layout;
 1628                        workspace
 1629                    });
 1630                })?;
 1631                window
 1632            } else {
 1633                let window_bounds_override = window_bounds_env_override();
 1634
 1635                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1636                    (Some(WindowBounds::Windowed(bounds)), None)
 1637                } else {
 1638                    let restorable_bounds = serialized_workspace
 1639                        .as_ref()
 1640                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1641                        .or_else(|| {
 1642                            let (display, window_bounds) = DB.last_window().log_err()?;
 1643                            Some((display?, window_bounds?))
 1644                        });
 1645
 1646                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1647                        (Some(serialized_status.0), Some(serialized_display))
 1648                    } else {
 1649                        (None, None)
 1650                    }
 1651                };
 1652
 1653                // Use the serialized workspace to construct the new window
 1654                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1655                options.window_bounds = window_bounds;
 1656                let centered_layout = serialized_workspace
 1657                    .as_ref()
 1658                    .map(|w| w.centered_layout)
 1659                    .unwrap_or(false);
 1660                cx.open_window(options, {
 1661                    let app_state = app_state.clone();
 1662                    let project_handle = project_handle.clone();
 1663                    move |window, cx| {
 1664                        cx.new(|cx| {
 1665                            let mut workspace = Workspace::new(
 1666                                Some(workspace_id),
 1667                                project_handle,
 1668                                app_state,
 1669                                window,
 1670                                cx,
 1671                            );
 1672                            workspace.centered_layout = centered_layout;
 1673                            workspace
 1674                        })
 1675                    }
 1676                })?
 1677            };
 1678
 1679            notify_if_database_failed(window, cx);
 1680            let opened_items = window
 1681                .update(cx, |_workspace, window, cx| {
 1682                    open_items(serialized_workspace, project_paths, window, cx)
 1683                })?
 1684                .await
 1685                .unwrap_or_default();
 1686
 1687            window
 1688                .update(cx, |workspace, window, cx| {
 1689                    window.activate_window();
 1690                    workspace.update_history(cx);
 1691                })
 1692                .log_err();
 1693            Ok((window, opened_items))
 1694        })
 1695    }
 1696
 1697    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1698        self.weak_self.clone()
 1699    }
 1700
 1701    pub fn left_dock(&self) -> &Entity<Dock> {
 1702        &self.left_dock
 1703    }
 1704
 1705    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1706        &self.bottom_dock
 1707    }
 1708
 1709    pub fn set_bottom_dock_layout(
 1710        &mut self,
 1711        layout: BottomDockLayout,
 1712        window: &mut Window,
 1713        cx: &mut Context<Self>,
 1714    ) {
 1715        let fs = self.project().read(cx).fs();
 1716        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1717            content.workspace.bottom_dock_layout = Some(layout);
 1718        });
 1719
 1720        cx.notify();
 1721        self.serialize_workspace(window, cx);
 1722    }
 1723
 1724    pub fn right_dock(&self) -> &Entity<Dock> {
 1725        &self.right_dock
 1726    }
 1727
 1728    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1729        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1730    }
 1731
 1732    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1733        match position {
 1734            DockPosition::Left => &self.left_dock,
 1735            DockPosition::Bottom => &self.bottom_dock,
 1736            DockPosition::Right => &self.right_dock,
 1737        }
 1738    }
 1739
 1740    pub fn is_edited(&self) -> bool {
 1741        self.window_edited
 1742    }
 1743
 1744    pub fn add_panel<T: Panel>(
 1745        &mut self,
 1746        panel: Entity<T>,
 1747        window: &mut Window,
 1748        cx: &mut Context<Self>,
 1749    ) {
 1750        let focus_handle = panel.panel_focus_handle(cx);
 1751        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1752            .detach();
 1753
 1754        let dock_position = panel.position(window, cx);
 1755        let dock = self.dock_at_position(dock_position);
 1756
 1757        dock.update(cx, |dock, cx| {
 1758            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1759        });
 1760    }
 1761
 1762    pub fn remove_panel<T: Panel>(
 1763        &mut self,
 1764        panel: &Entity<T>,
 1765        window: &mut Window,
 1766        cx: &mut Context<Self>,
 1767    ) {
 1768        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1769            dock.update(cx, |dock, cx| {
 1770                dock.remove_panel(panel, window, cx);
 1771            })
 1772        }
 1773    }
 1774
 1775    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1776        &self.status_bar
 1777    }
 1778
 1779    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1780        StatusBarSettings::get_global(cx).show
 1781    }
 1782
 1783    pub fn app_state(&self) -> &Arc<AppState> {
 1784        &self.app_state
 1785    }
 1786
 1787    pub fn user_store(&self) -> &Entity<UserStore> {
 1788        &self.app_state.user_store
 1789    }
 1790
 1791    pub fn project(&self) -> &Entity<Project> {
 1792        &self.project
 1793    }
 1794
 1795    pub fn path_style(&self, cx: &App) -> PathStyle {
 1796        self.project.read(cx).path_style(cx)
 1797    }
 1798
 1799    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1800        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1801
 1802        for pane_handle in &self.panes {
 1803            let pane = pane_handle.read(cx);
 1804
 1805            for entry in pane.activation_history() {
 1806                history.insert(
 1807                    entry.entity_id,
 1808                    history
 1809                        .get(&entry.entity_id)
 1810                        .cloned()
 1811                        .unwrap_or(0)
 1812                        .max(entry.timestamp),
 1813                );
 1814            }
 1815        }
 1816
 1817        history
 1818    }
 1819
 1820    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1821        let mut recent_item: Option<Entity<T>> = None;
 1822        let mut recent_timestamp = 0;
 1823        for pane_handle in &self.panes {
 1824            let pane = pane_handle.read(cx);
 1825            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1826                pane.items().map(|item| (item.item_id(), item)).collect();
 1827            for entry in pane.activation_history() {
 1828                if entry.timestamp > recent_timestamp
 1829                    && let Some(&item) = item_map.get(&entry.entity_id)
 1830                    && let Some(typed_item) = item.act_as::<T>(cx)
 1831                {
 1832                    recent_timestamp = entry.timestamp;
 1833                    recent_item = Some(typed_item);
 1834                }
 1835            }
 1836        }
 1837        recent_item
 1838    }
 1839
 1840    pub fn recent_navigation_history_iter(
 1841        &self,
 1842        cx: &App,
 1843    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1844        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1845        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1846
 1847        for pane in &self.panes {
 1848            let pane = pane.read(cx);
 1849
 1850            pane.nav_history()
 1851                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1852                    if let Some(fs_path) = &fs_path {
 1853                        abs_paths_opened
 1854                            .entry(fs_path.clone())
 1855                            .or_default()
 1856                            .insert(project_path.clone());
 1857                    }
 1858                    let timestamp = entry.timestamp;
 1859                    match history.entry(project_path) {
 1860                        hash_map::Entry::Occupied(mut entry) => {
 1861                            let (_, old_timestamp) = entry.get();
 1862                            if &timestamp > old_timestamp {
 1863                                entry.insert((fs_path, timestamp));
 1864                            }
 1865                        }
 1866                        hash_map::Entry::Vacant(entry) => {
 1867                            entry.insert((fs_path, timestamp));
 1868                        }
 1869                    }
 1870                });
 1871
 1872            if let Some(item) = pane.active_item()
 1873                && let Some(project_path) = item.project_path(cx)
 1874            {
 1875                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1876
 1877                if let Some(fs_path) = &fs_path {
 1878                    abs_paths_opened
 1879                        .entry(fs_path.clone())
 1880                        .or_default()
 1881                        .insert(project_path.clone());
 1882                }
 1883
 1884                history.insert(project_path, (fs_path, std::usize::MAX));
 1885            }
 1886        }
 1887
 1888        history
 1889            .into_iter()
 1890            .sorted_by_key(|(_, (_, order))| *order)
 1891            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1892            .rev()
 1893            .filter(move |(history_path, abs_path)| {
 1894                let latest_project_path_opened = abs_path
 1895                    .as_ref()
 1896                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1897                    .and_then(|project_paths| {
 1898                        project_paths
 1899                            .iter()
 1900                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1901                    });
 1902
 1903                latest_project_path_opened.is_none_or(|path| path == history_path)
 1904            })
 1905    }
 1906
 1907    pub fn recent_navigation_history(
 1908        &self,
 1909        limit: Option<usize>,
 1910        cx: &App,
 1911    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1912        self.recent_navigation_history_iter(cx)
 1913            .take(limit.unwrap_or(usize::MAX))
 1914            .collect()
 1915    }
 1916
 1917    fn navigate_history(
 1918        &mut self,
 1919        pane: WeakEntity<Pane>,
 1920        mode: NavigationMode,
 1921        window: &mut Window,
 1922        cx: &mut Context<Workspace>,
 1923    ) -> Task<Result<()>> {
 1924        let to_load = if let Some(pane) = pane.upgrade() {
 1925            pane.update(cx, |pane, cx| {
 1926                window.focus(&pane.focus_handle(cx));
 1927                loop {
 1928                    // Retrieve the weak item handle from the history.
 1929                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1930
 1931                    // If the item is still present in this pane, then activate it.
 1932                    if let Some(index) = entry
 1933                        .item
 1934                        .upgrade()
 1935                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1936                    {
 1937                        let prev_active_item_index = pane.active_item_index();
 1938                        pane.nav_history_mut().set_mode(mode);
 1939                        pane.activate_item(index, true, true, window, cx);
 1940                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1941
 1942                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1943                        if let Some(data) = entry.data {
 1944                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1945                        }
 1946
 1947                        if navigated {
 1948                            break None;
 1949                        }
 1950                    } else {
 1951                        // If the item is no longer present in this pane, then retrieve its
 1952                        // path info in order to reopen it.
 1953                        break pane
 1954                            .nav_history()
 1955                            .path_for_item(entry.item.id())
 1956                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1957                    }
 1958                }
 1959            })
 1960        } else {
 1961            None
 1962        };
 1963
 1964        if let Some((project_path, abs_path, entry)) = to_load {
 1965            // If the item was no longer present, then load it again from its previous path, first try the local path
 1966            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1967
 1968            cx.spawn_in(window, async move  |workspace, cx| {
 1969                let open_by_project_path = open_by_project_path.await;
 1970                let mut navigated = false;
 1971                match open_by_project_path
 1972                    .with_context(|| format!("Navigating to {project_path:?}"))
 1973                {
 1974                    Ok((project_entry_id, build_item)) => {
 1975                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1976                            pane.nav_history_mut().set_mode(mode);
 1977                            pane.active_item().map(|p| p.item_id())
 1978                        })?;
 1979
 1980                        pane.update_in(cx, |pane, window, cx| {
 1981                            let item = pane.open_item(
 1982                                project_entry_id,
 1983                                project_path,
 1984                                true,
 1985                                entry.is_preview,
 1986                                true,
 1987                                None,
 1988                                window, cx,
 1989                                build_item,
 1990                            );
 1991                            navigated |= Some(item.item_id()) != prev_active_item_id;
 1992                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1993                            if let Some(data) = entry.data {
 1994                                navigated |= item.navigate(data, window, cx);
 1995                            }
 1996                        })?;
 1997                    }
 1998                    Err(open_by_project_path_e) => {
 1999                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2000                        // and its worktree is now dropped
 2001                        if let Some(abs_path) = abs_path {
 2002                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2003                                pane.nav_history_mut().set_mode(mode);
 2004                                pane.active_item().map(|p| p.item_id())
 2005                            })?;
 2006                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2007                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2008                            })?;
 2009                            match open_by_abs_path
 2010                                .await
 2011                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2012                            {
 2013                                Ok(item) => {
 2014                                    pane.update_in(cx, |pane, window, cx| {
 2015                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2016                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2017                                        if let Some(data) = entry.data {
 2018                                            navigated |= item.navigate(data, window, cx);
 2019                                        }
 2020                                    })?;
 2021                                }
 2022                                Err(open_by_abs_path_e) => {
 2023                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2024                                }
 2025                            }
 2026                        }
 2027                    }
 2028                }
 2029
 2030                if !navigated {
 2031                    workspace
 2032                        .update_in(cx, |workspace, window, cx| {
 2033                            Self::navigate_history(workspace, pane, mode, window, cx)
 2034                        })?
 2035                        .await?;
 2036                }
 2037
 2038                Ok(())
 2039            })
 2040        } else {
 2041            Task::ready(Ok(()))
 2042        }
 2043    }
 2044
 2045    pub fn go_back(
 2046        &mut self,
 2047        pane: WeakEntity<Pane>,
 2048        window: &mut Window,
 2049        cx: &mut Context<Workspace>,
 2050    ) -> Task<Result<()>> {
 2051        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2052    }
 2053
 2054    pub fn go_forward(
 2055        &mut self,
 2056        pane: WeakEntity<Pane>,
 2057        window: &mut Window,
 2058        cx: &mut Context<Workspace>,
 2059    ) -> Task<Result<()>> {
 2060        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2061    }
 2062
 2063    pub fn reopen_closed_item(
 2064        &mut self,
 2065        window: &mut Window,
 2066        cx: &mut Context<Workspace>,
 2067    ) -> Task<Result<()>> {
 2068        self.navigate_history(
 2069            self.active_pane().downgrade(),
 2070            NavigationMode::ReopeningClosedItem,
 2071            window,
 2072            cx,
 2073        )
 2074    }
 2075
 2076    pub fn client(&self) -> &Arc<Client> {
 2077        &self.app_state.client
 2078    }
 2079
 2080    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2081        self.titlebar_item = Some(item);
 2082        cx.notify();
 2083    }
 2084
 2085    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2086        self.on_prompt_for_new_path = Some(prompt)
 2087    }
 2088
 2089    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2090        self.on_prompt_for_open_path = Some(prompt)
 2091    }
 2092
 2093    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2094        self.terminal_provider = Some(Box::new(provider));
 2095    }
 2096
 2097    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2098        self.debugger_provider = Some(Arc::new(provider));
 2099    }
 2100
 2101    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2102        self.debugger_provider.clone()
 2103    }
 2104
 2105    pub fn prompt_for_open_path(
 2106        &mut self,
 2107        path_prompt_options: PathPromptOptions,
 2108        lister: DirectoryLister,
 2109        window: &mut Window,
 2110        cx: &mut Context<Self>,
 2111    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2112        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2113            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2114            let rx = prompt(self, lister, window, cx);
 2115            self.on_prompt_for_open_path = Some(prompt);
 2116            rx
 2117        } else {
 2118            let (tx, rx) = oneshot::channel();
 2119            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2120
 2121            cx.spawn_in(window, async move |workspace, cx| {
 2122                let Ok(result) = abs_path.await else {
 2123                    return Ok(());
 2124                };
 2125
 2126                match result {
 2127                    Ok(result) => {
 2128                        tx.send(result).ok();
 2129                    }
 2130                    Err(err) => {
 2131                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2132                            workspace.show_portal_error(err.to_string(), cx);
 2133                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2134                            let rx = prompt(workspace, lister, window, cx);
 2135                            workspace.on_prompt_for_open_path = Some(prompt);
 2136                            rx
 2137                        })?;
 2138                        if let Ok(path) = rx.await {
 2139                            tx.send(path).ok();
 2140                        }
 2141                    }
 2142                };
 2143                anyhow::Ok(())
 2144            })
 2145            .detach();
 2146
 2147            rx
 2148        }
 2149    }
 2150
 2151    pub fn prompt_for_new_path(
 2152        &mut self,
 2153        lister: DirectoryLister,
 2154        suggested_name: Option<String>,
 2155        window: &mut Window,
 2156        cx: &mut Context<Self>,
 2157    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2158        if self.project.read(cx).is_via_collab()
 2159            || self.project.read(cx).is_via_remote_server()
 2160            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2161        {
 2162            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2163            let rx = prompt(self, lister, window, cx);
 2164            self.on_prompt_for_new_path = Some(prompt);
 2165            return rx;
 2166        }
 2167
 2168        let (tx, rx) = oneshot::channel();
 2169        cx.spawn_in(window, async move |workspace, cx| {
 2170            let abs_path = workspace.update(cx, |workspace, cx| {
 2171                let relative_to = workspace
 2172                    .most_recent_active_path(cx)
 2173                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2174                    .or_else(|| {
 2175                        let project = workspace.project.read(cx);
 2176                        project.visible_worktrees(cx).find_map(|worktree| {
 2177                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2178                        })
 2179                    })
 2180                    .or_else(std::env::home_dir)
 2181                    .unwrap_or_else(|| PathBuf::from(""));
 2182                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2183            })?;
 2184            let abs_path = match abs_path.await? {
 2185                Ok(path) => path,
 2186                Err(err) => {
 2187                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2188                        workspace.show_portal_error(err.to_string(), cx);
 2189
 2190                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2191                        let rx = prompt(workspace, lister, window, cx);
 2192                        workspace.on_prompt_for_new_path = Some(prompt);
 2193                        rx
 2194                    })?;
 2195                    if let Ok(path) = rx.await {
 2196                        tx.send(path).ok();
 2197                    }
 2198                    return anyhow::Ok(());
 2199                }
 2200            };
 2201
 2202            tx.send(abs_path.map(|path| vec![path])).ok();
 2203            anyhow::Ok(())
 2204        })
 2205        .detach();
 2206
 2207        rx
 2208    }
 2209
 2210    pub fn titlebar_item(&self) -> Option<AnyView> {
 2211        self.titlebar_item.clone()
 2212    }
 2213
 2214    /// Call the given callback with a workspace whose project is local.
 2215    ///
 2216    /// If the given workspace has a local project, then it will be passed
 2217    /// to the callback. Otherwise, a new empty window will be created.
 2218    pub fn with_local_workspace<T, F>(
 2219        &mut self,
 2220        window: &mut Window,
 2221        cx: &mut Context<Self>,
 2222        callback: F,
 2223    ) -> Task<Result<T>>
 2224    where
 2225        T: 'static,
 2226        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2227    {
 2228        if self.project.read(cx).is_local() {
 2229            Task::ready(Ok(callback(self, window, cx)))
 2230        } else {
 2231            let env = self.project.read(cx).cli_environment(cx);
 2232            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2233            cx.spawn_in(window, async move |_vh, cx| {
 2234                let (workspace, _) = task.await?;
 2235                workspace.update(cx, callback)
 2236            })
 2237        }
 2238    }
 2239
 2240    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2241        self.project.read(cx).worktrees(cx)
 2242    }
 2243
 2244    pub fn visible_worktrees<'a>(
 2245        &self,
 2246        cx: &'a App,
 2247    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2248        self.project.read(cx).visible_worktrees(cx)
 2249    }
 2250
 2251    #[cfg(any(test, feature = "test-support"))]
 2252    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2253        let futures = self
 2254            .worktrees(cx)
 2255            .filter_map(|worktree| worktree.read(cx).as_local())
 2256            .map(|worktree| worktree.scan_complete())
 2257            .collect::<Vec<_>>();
 2258        async move {
 2259            for future in futures {
 2260                future.await;
 2261            }
 2262        }
 2263    }
 2264
 2265    pub fn close_global(cx: &mut App) {
 2266        cx.defer(|cx| {
 2267            cx.windows().iter().find(|window| {
 2268                window
 2269                    .update(cx, |_, window, _| {
 2270                        if window.is_window_active() {
 2271                            //This can only get called when the window's project connection has been lost
 2272                            //so we don't need to prompt the user for anything and instead just close the window
 2273                            window.remove_window();
 2274                            true
 2275                        } else {
 2276                            false
 2277                        }
 2278                    })
 2279                    .unwrap_or(false)
 2280            });
 2281        });
 2282    }
 2283
 2284    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2285        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2286        cx.spawn_in(window, async move |_, cx| {
 2287            if prepare.await? {
 2288                cx.update(|window, _cx| window.remove_window())?;
 2289            }
 2290            anyhow::Ok(())
 2291        })
 2292        .detach_and_log_err(cx)
 2293    }
 2294
 2295    pub fn move_focused_panel_to_next_position(
 2296        &mut self,
 2297        _: &MoveFocusedPanelToNextPosition,
 2298        window: &mut Window,
 2299        cx: &mut Context<Self>,
 2300    ) {
 2301        let docks = self.all_docks();
 2302        let active_dock = docks
 2303            .into_iter()
 2304            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2305
 2306        if let Some(dock) = active_dock {
 2307            dock.update(cx, |dock, cx| {
 2308                let active_panel = dock
 2309                    .active_panel()
 2310                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2311
 2312                if let Some(panel) = active_panel {
 2313                    panel.move_to_next_position(window, cx);
 2314                }
 2315            })
 2316        }
 2317    }
 2318
 2319    pub fn prepare_to_close(
 2320        &mut self,
 2321        close_intent: CloseIntent,
 2322        window: &mut Window,
 2323        cx: &mut Context<Self>,
 2324    ) -> Task<Result<bool>> {
 2325        let active_call = self.active_call().cloned();
 2326
 2327        // On Linux and Windows, closing the last window should restore the last workspace.
 2328        let save_last_workspace = cfg!(not(target_os = "macos"))
 2329            && close_intent != CloseIntent::ReplaceWindow
 2330            && cx.windows().len() == 1;
 2331
 2332        cx.spawn_in(window, async move |this, cx| {
 2333            let workspace_count = cx.update(|_window, cx| {
 2334                cx.windows()
 2335                    .iter()
 2336                    .filter(|window| window.downcast::<Workspace>().is_some())
 2337                    .count()
 2338            })?;
 2339
 2340            if let Some(active_call) = active_call
 2341                && workspace_count == 1
 2342                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2343            {
 2344                if close_intent == CloseIntent::CloseWindow {
 2345                    let answer = cx.update(|window, cx| {
 2346                        window.prompt(
 2347                            PromptLevel::Warning,
 2348                            "Do you want to leave the current call?",
 2349                            None,
 2350                            &["Close window and hang up", "Cancel"],
 2351                            cx,
 2352                        )
 2353                    })?;
 2354
 2355                    if answer.await.log_err() == Some(1) {
 2356                        return anyhow::Ok(false);
 2357                    } else {
 2358                        active_call
 2359                            .update(cx, |call, cx| call.hang_up(cx))?
 2360                            .await
 2361                            .log_err();
 2362                    }
 2363                }
 2364                if close_intent == CloseIntent::ReplaceWindow {
 2365                    _ = active_call.update(cx, |this, cx| {
 2366                        let workspace = cx
 2367                            .windows()
 2368                            .iter()
 2369                            .filter_map(|window| window.downcast::<Workspace>())
 2370                            .next()
 2371                            .unwrap();
 2372                        let project = workspace.read(cx)?.project.clone();
 2373                        if project.read(cx).is_shared() {
 2374                            this.unshare_project(project, cx)?;
 2375                        }
 2376                        Ok::<_, anyhow::Error>(())
 2377                    })?;
 2378                }
 2379            }
 2380
 2381            let save_result = this
 2382                .update_in(cx, |this, window, cx| {
 2383                    this.save_all_internal(SaveIntent::Close, window, cx)
 2384                })?
 2385                .await;
 2386
 2387            // If we're not quitting, but closing, we remove the workspace from
 2388            // the current session.
 2389            if close_intent != CloseIntent::Quit
 2390                && !save_last_workspace
 2391                && save_result.as_ref().is_ok_and(|&res| res)
 2392            {
 2393                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2394                    .await;
 2395            }
 2396
 2397            save_result
 2398        })
 2399    }
 2400
 2401    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2402        self.save_all_internal(
 2403            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2404            window,
 2405            cx,
 2406        )
 2407        .detach_and_log_err(cx);
 2408    }
 2409
 2410    fn send_keystrokes(
 2411        &mut self,
 2412        action: &SendKeystrokes,
 2413        window: &mut Window,
 2414        cx: &mut Context<Self>,
 2415    ) {
 2416        let keystrokes: Vec<Keystroke> = action
 2417            .0
 2418            .split(' ')
 2419            .flat_map(|k| Keystroke::parse(k).log_err())
 2420            .collect();
 2421        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2422    }
 2423
 2424    pub fn send_keystrokes_impl(
 2425        &mut self,
 2426        keystrokes: Vec<Keystroke>,
 2427        window: &mut Window,
 2428        cx: &mut Context<Self>,
 2429    ) -> Shared<Task<()>> {
 2430        let mut state = self.dispatching_keystrokes.borrow_mut();
 2431        if !state.dispatched.insert(keystrokes.clone()) {
 2432            cx.propagate();
 2433            return state.task.clone().unwrap();
 2434        }
 2435
 2436        state.queue.extend(keystrokes);
 2437
 2438        let keystrokes = self.dispatching_keystrokes.clone();
 2439        if state.task.is_none() {
 2440            state.task = Some(
 2441                window
 2442                    .spawn(cx, async move |cx| {
 2443                        // limit to 100 keystrokes to avoid infinite recursion.
 2444                        for _ in 0..100 {
 2445                            let mut state = keystrokes.borrow_mut();
 2446                            let Some(keystroke) = state.queue.pop_front() else {
 2447                                state.dispatched.clear();
 2448                                state.task.take();
 2449                                return;
 2450                            };
 2451                            drop(state);
 2452                            cx.update(|window, cx| {
 2453                                let focused = window.focused(cx);
 2454                                window.dispatch_keystroke(keystroke.clone(), cx);
 2455                                if window.focused(cx) != focused {
 2456                                    // dispatch_keystroke may cause the focus to change.
 2457                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2458                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2459                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2460                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2461                                    // )
 2462                                    window.draw(cx).clear();
 2463                                }
 2464                            })
 2465                            .ok();
 2466                        }
 2467
 2468                        *keystrokes.borrow_mut() = Default::default();
 2469                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2470                    })
 2471                    .shared(),
 2472            );
 2473        }
 2474        state.task.clone().unwrap()
 2475    }
 2476
 2477    fn save_all_internal(
 2478        &mut self,
 2479        mut save_intent: SaveIntent,
 2480        window: &mut Window,
 2481        cx: &mut Context<Self>,
 2482    ) -> Task<Result<bool>> {
 2483        if self.project.read(cx).is_disconnected(cx) {
 2484            return Task::ready(Ok(true));
 2485        }
 2486        let dirty_items = self
 2487            .panes
 2488            .iter()
 2489            .flat_map(|pane| {
 2490                pane.read(cx).items().filter_map(|item| {
 2491                    if item.is_dirty(cx) {
 2492                        item.tab_content_text(0, cx);
 2493                        Some((pane.downgrade(), item.boxed_clone()))
 2494                    } else {
 2495                        None
 2496                    }
 2497                })
 2498            })
 2499            .collect::<Vec<_>>();
 2500
 2501        let project = self.project.clone();
 2502        cx.spawn_in(window, async move |workspace, cx| {
 2503            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2504                let (serialize_tasks, remaining_dirty_items) =
 2505                    workspace.update_in(cx, |workspace, window, cx| {
 2506                        let mut remaining_dirty_items = Vec::new();
 2507                        let mut serialize_tasks = Vec::new();
 2508                        for (pane, item) in dirty_items {
 2509                            if let Some(task) = item
 2510                                .to_serializable_item_handle(cx)
 2511                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2512                            {
 2513                                serialize_tasks.push(task);
 2514                            } else {
 2515                                remaining_dirty_items.push((pane, item));
 2516                            }
 2517                        }
 2518                        (serialize_tasks, remaining_dirty_items)
 2519                    })?;
 2520
 2521                futures::future::try_join_all(serialize_tasks).await?;
 2522
 2523                if remaining_dirty_items.len() > 1 {
 2524                    let answer = workspace.update_in(cx, |_, window, cx| {
 2525                        let detail = Pane::file_names_for_prompt(
 2526                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2527                            cx,
 2528                        );
 2529                        window.prompt(
 2530                            PromptLevel::Warning,
 2531                            "Do you want to save all changes in the following files?",
 2532                            Some(&detail),
 2533                            &["Save all", "Discard all", "Cancel"],
 2534                            cx,
 2535                        )
 2536                    })?;
 2537                    match answer.await.log_err() {
 2538                        Some(0) => save_intent = SaveIntent::SaveAll,
 2539                        Some(1) => save_intent = SaveIntent::Skip,
 2540                        Some(2) => return Ok(false),
 2541                        _ => {}
 2542                    }
 2543                }
 2544
 2545                remaining_dirty_items
 2546            } else {
 2547                dirty_items
 2548            };
 2549
 2550            for (pane, item) in dirty_items {
 2551                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2552                    (
 2553                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2554                        item.project_entry_ids(cx),
 2555                    )
 2556                })?;
 2557                if (singleton || !project_entry_ids.is_empty())
 2558                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2559                {
 2560                    return Ok(false);
 2561                }
 2562            }
 2563            Ok(true)
 2564        })
 2565    }
 2566
 2567    pub fn open_workspace_for_paths(
 2568        &mut self,
 2569        replace_current_window: bool,
 2570        paths: Vec<PathBuf>,
 2571        window: &mut Window,
 2572        cx: &mut Context<Self>,
 2573    ) -> Task<Result<()>> {
 2574        let window_handle = window.window_handle().downcast::<Self>();
 2575        let is_remote = self.project.read(cx).is_via_collab();
 2576        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2577        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2578
 2579        let window_to_replace = if replace_current_window {
 2580            window_handle
 2581        } else if is_remote || has_worktree || has_dirty_items {
 2582            None
 2583        } else {
 2584            window_handle
 2585        };
 2586        let app_state = self.app_state.clone();
 2587
 2588        cx.spawn(async move |_, cx| {
 2589            cx.update(|cx| {
 2590                open_paths(
 2591                    &paths,
 2592                    app_state,
 2593                    OpenOptions {
 2594                        replace_window: window_to_replace,
 2595                        ..Default::default()
 2596                    },
 2597                    cx,
 2598                )
 2599            })?
 2600            .await?;
 2601            Ok(())
 2602        })
 2603    }
 2604
 2605    #[allow(clippy::type_complexity)]
 2606    pub fn open_paths(
 2607        &mut self,
 2608        mut abs_paths: Vec<PathBuf>,
 2609        options: OpenOptions,
 2610        pane: Option<WeakEntity<Pane>>,
 2611        window: &mut Window,
 2612        cx: &mut Context<Self>,
 2613    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2614        let fs = self.app_state.fs.clone();
 2615
 2616        // Sort the paths to ensure we add worktrees for parents before their children.
 2617        abs_paths.sort_unstable();
 2618        cx.spawn_in(window, async move |this, cx| {
 2619            let mut tasks = Vec::with_capacity(abs_paths.len());
 2620
 2621            for abs_path in &abs_paths {
 2622                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2623                    OpenVisible::All => Some(true),
 2624                    OpenVisible::None => Some(false),
 2625                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2626                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2627                        Some(None) => Some(true),
 2628                        None => None,
 2629                    },
 2630                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2631                        Some(Some(metadata)) => Some(metadata.is_dir),
 2632                        Some(None) => Some(false),
 2633                        None => None,
 2634                    },
 2635                };
 2636                let project_path = match visible {
 2637                    Some(visible) => match this
 2638                        .update(cx, |this, cx| {
 2639                            Workspace::project_path_for_path(
 2640                                this.project.clone(),
 2641                                abs_path,
 2642                                visible,
 2643                                cx,
 2644                            )
 2645                        })
 2646                        .log_err()
 2647                    {
 2648                        Some(project_path) => project_path.await.log_err(),
 2649                        None => None,
 2650                    },
 2651                    None => None,
 2652                };
 2653
 2654                let this = this.clone();
 2655                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2656                let fs = fs.clone();
 2657                let pane = pane.clone();
 2658                let task = cx.spawn(async move |cx| {
 2659                    let (worktree, project_path) = project_path?;
 2660                    if fs.is_dir(&abs_path).await {
 2661                        this.update(cx, |workspace, cx| {
 2662                            let worktree = worktree.read(cx);
 2663                            let worktree_abs_path = worktree.abs_path();
 2664                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2665                                worktree.root_entry()
 2666                            } else {
 2667                                abs_path
 2668                                    .strip_prefix(worktree_abs_path.as_ref())
 2669                                    .ok()
 2670                                    .and_then(|relative_path| {
 2671                                        let relative_path =
 2672                                            RelPath::new(relative_path, PathStyle::local())
 2673                                                .log_err()?;
 2674                                        worktree.entry_for_path(&relative_path)
 2675                                    })
 2676                            }
 2677                            .map(|entry| entry.id);
 2678                            if let Some(entry_id) = entry_id {
 2679                                workspace.project.update(cx, |_, cx| {
 2680                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2681                                })
 2682                            }
 2683                        })
 2684                        .ok()?;
 2685                        None
 2686                    } else {
 2687                        Some(
 2688                            this.update_in(cx, |this, window, cx| {
 2689                                this.open_path(
 2690                                    project_path,
 2691                                    pane,
 2692                                    options.focus.unwrap_or(true),
 2693                                    window,
 2694                                    cx,
 2695                                )
 2696                            })
 2697                            .ok()?
 2698                            .await,
 2699                        )
 2700                    }
 2701                });
 2702                tasks.push(task);
 2703            }
 2704
 2705            futures::future::join_all(tasks).await
 2706        })
 2707    }
 2708
 2709    pub fn open_resolved_path(
 2710        &mut self,
 2711        path: ResolvedPath,
 2712        window: &mut Window,
 2713        cx: &mut Context<Self>,
 2714    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2715        match path {
 2716            ResolvedPath::ProjectPath { project_path, .. } => {
 2717                self.open_path(project_path, None, true, window, cx)
 2718            }
 2719            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2720                PathBuf::from(path),
 2721                OpenOptions {
 2722                    visible: Some(OpenVisible::None),
 2723                    ..Default::default()
 2724                },
 2725                window,
 2726                cx,
 2727            ),
 2728        }
 2729    }
 2730
 2731    pub fn absolute_path_of_worktree(
 2732        &self,
 2733        worktree_id: WorktreeId,
 2734        cx: &mut Context<Self>,
 2735    ) -> Option<PathBuf> {
 2736        self.project
 2737            .read(cx)
 2738            .worktree_for_id(worktree_id, cx)
 2739            // TODO: use `abs_path` or `root_dir`
 2740            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2741    }
 2742
 2743    fn add_folder_to_project(
 2744        &mut self,
 2745        _: &AddFolderToProject,
 2746        window: &mut Window,
 2747        cx: &mut Context<Self>,
 2748    ) {
 2749        let project = self.project.read(cx);
 2750        if project.is_via_collab() {
 2751            self.show_error(
 2752                &anyhow!("You cannot add folders to someone else's project"),
 2753                cx,
 2754            );
 2755            return;
 2756        }
 2757        let paths = self.prompt_for_open_path(
 2758            PathPromptOptions {
 2759                files: false,
 2760                directories: true,
 2761                multiple: true,
 2762                prompt: None,
 2763            },
 2764            DirectoryLister::Project(self.project.clone()),
 2765            window,
 2766            cx,
 2767        );
 2768        cx.spawn_in(window, async move |this, cx| {
 2769            if let Some(paths) = paths.await.log_err().flatten() {
 2770                let results = this
 2771                    .update_in(cx, |this, window, cx| {
 2772                        this.open_paths(
 2773                            paths,
 2774                            OpenOptions {
 2775                                visible: Some(OpenVisible::All),
 2776                                ..Default::default()
 2777                            },
 2778                            None,
 2779                            window,
 2780                            cx,
 2781                        )
 2782                    })?
 2783                    .await;
 2784                for result in results.into_iter().flatten() {
 2785                    result.log_err();
 2786                }
 2787            }
 2788            anyhow::Ok(())
 2789        })
 2790        .detach_and_log_err(cx);
 2791    }
 2792
 2793    pub fn project_path_for_path(
 2794        project: Entity<Project>,
 2795        abs_path: &Path,
 2796        visible: bool,
 2797        cx: &mut App,
 2798    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2799        let entry = project.update(cx, |project, cx| {
 2800            project.find_or_create_worktree(abs_path, visible, cx)
 2801        });
 2802        cx.spawn(async move |cx| {
 2803            let (worktree, path) = entry.await?;
 2804            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2805            Ok((
 2806                worktree,
 2807                ProjectPath {
 2808                    worktree_id,
 2809                    path: path,
 2810                },
 2811            ))
 2812        })
 2813    }
 2814
 2815    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2816        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2817    }
 2818
 2819    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2820        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2821    }
 2822
 2823    pub fn items_of_type<'a, T: Item>(
 2824        &'a self,
 2825        cx: &'a App,
 2826    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2827        self.panes
 2828            .iter()
 2829            .flat_map(|pane| pane.read(cx).items_of_type())
 2830    }
 2831
 2832    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2833        self.active_pane().read(cx).active_item()
 2834    }
 2835
 2836    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2837        let item = self.active_item(cx)?;
 2838        item.to_any().downcast::<I>().ok()
 2839    }
 2840
 2841    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2842        self.active_item(cx).and_then(|item| item.project_path(cx))
 2843    }
 2844
 2845    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2846        self.recent_navigation_history_iter(cx)
 2847            .filter_map(|(path, abs_path)| {
 2848                let worktree = self
 2849                    .project
 2850                    .read(cx)
 2851                    .worktree_for_id(path.worktree_id, cx)?;
 2852                if worktree.read(cx).is_visible() {
 2853                    abs_path
 2854                } else {
 2855                    None
 2856                }
 2857            })
 2858            .next()
 2859    }
 2860
 2861    pub fn save_active_item(
 2862        &mut self,
 2863        save_intent: SaveIntent,
 2864        window: &mut Window,
 2865        cx: &mut App,
 2866    ) -> Task<Result<()>> {
 2867        let project = self.project.clone();
 2868        let pane = self.active_pane();
 2869        let item = pane.read(cx).active_item();
 2870        let pane = pane.downgrade();
 2871
 2872        window.spawn(cx, async move |cx| {
 2873            if let Some(item) = item {
 2874                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2875                    .await
 2876                    .map(|_| ())
 2877            } else {
 2878                Ok(())
 2879            }
 2880        })
 2881    }
 2882
 2883    pub fn close_inactive_items_and_panes(
 2884        &mut self,
 2885        action: &CloseInactiveTabsAndPanes,
 2886        window: &mut Window,
 2887        cx: &mut Context<Self>,
 2888    ) {
 2889        if let Some(task) = self.close_all_internal(
 2890            true,
 2891            action.save_intent.unwrap_or(SaveIntent::Close),
 2892            window,
 2893            cx,
 2894        ) {
 2895            task.detach_and_log_err(cx)
 2896        }
 2897    }
 2898
 2899    pub fn close_all_items_and_panes(
 2900        &mut self,
 2901        action: &CloseAllItemsAndPanes,
 2902        window: &mut Window,
 2903        cx: &mut Context<Self>,
 2904    ) {
 2905        if let Some(task) = self.close_all_internal(
 2906            false,
 2907            action.save_intent.unwrap_or(SaveIntent::Close),
 2908            window,
 2909            cx,
 2910        ) {
 2911            task.detach_and_log_err(cx)
 2912        }
 2913    }
 2914
 2915    fn close_all_internal(
 2916        &mut self,
 2917        retain_active_pane: bool,
 2918        save_intent: SaveIntent,
 2919        window: &mut Window,
 2920        cx: &mut Context<Self>,
 2921    ) -> Option<Task<Result<()>>> {
 2922        let current_pane = self.active_pane();
 2923
 2924        let mut tasks = Vec::new();
 2925
 2926        if retain_active_pane {
 2927            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2928                pane.close_other_items(
 2929                    &CloseOtherItems {
 2930                        save_intent: None,
 2931                        close_pinned: false,
 2932                    },
 2933                    None,
 2934                    window,
 2935                    cx,
 2936                )
 2937            });
 2938
 2939            tasks.push(current_pane_close);
 2940        }
 2941
 2942        for pane in self.panes() {
 2943            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2944                continue;
 2945            }
 2946
 2947            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2948                pane.close_all_items(
 2949                    &CloseAllItems {
 2950                        save_intent: Some(save_intent),
 2951                        close_pinned: false,
 2952                    },
 2953                    window,
 2954                    cx,
 2955                )
 2956            });
 2957
 2958            tasks.push(close_pane_items)
 2959        }
 2960
 2961        if tasks.is_empty() {
 2962            None
 2963        } else {
 2964            Some(cx.spawn_in(window, async move |_, _| {
 2965                for task in tasks {
 2966                    task.await?
 2967                }
 2968                Ok(())
 2969            }))
 2970        }
 2971    }
 2972
 2973    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 2974        self.dock_at_position(position).read(cx).is_open()
 2975    }
 2976
 2977    pub fn toggle_dock(
 2978        &mut self,
 2979        dock_side: DockPosition,
 2980        window: &mut Window,
 2981        cx: &mut Context<Self>,
 2982    ) {
 2983        let dock = self.dock_at_position(dock_side);
 2984        let mut focus_center = false;
 2985        let mut reveal_dock = false;
 2986        dock.update(cx, |dock, cx| {
 2987            let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 2988            let was_visible = dock.is_open() && !other_is_zoomed;
 2989            dock.set_open(!was_visible, window, cx);
 2990
 2991            if dock.active_panel().is_none() {
 2992                let Some(panel_ix) = dock
 2993                    .first_enabled_panel_idx(cx)
 2994                    .log_with_level(log::Level::Info)
 2995                else {
 2996                    return;
 2997                };
 2998                dock.activate_panel(panel_ix, window, cx);
 2999            }
 3000
 3001            if let Some(active_panel) = dock.active_panel() {
 3002                if was_visible {
 3003                    if active_panel
 3004                        .panel_focus_handle(cx)
 3005                        .contains_focused(window, cx)
 3006                    {
 3007                        focus_center = true;
 3008                    }
 3009                } else {
 3010                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3011                    window.focus(focus_handle);
 3012                    reveal_dock = true;
 3013                }
 3014            }
 3015        });
 3016
 3017        if reveal_dock {
 3018            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3019        }
 3020
 3021        if focus_center {
 3022            self.active_pane
 3023                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3024        }
 3025
 3026        cx.notify();
 3027        self.serialize_workspace(window, cx);
 3028    }
 3029
 3030    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3031        self.all_docks().into_iter().find(|&dock| {
 3032            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3033        })
 3034    }
 3035
 3036    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3037        if let Some(dock) = self.active_dock(window, cx) {
 3038            dock.update(cx, |dock, cx| {
 3039                dock.set_open(false, window, cx);
 3040            });
 3041            return true;
 3042        }
 3043        false
 3044    }
 3045
 3046    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3047        for dock in self.all_docks() {
 3048            dock.update(cx, |dock, cx| {
 3049                dock.set_open(false, window, cx);
 3050            });
 3051        }
 3052
 3053        cx.focus_self(window);
 3054        cx.notify();
 3055        self.serialize_workspace(window, cx);
 3056    }
 3057
 3058    /// Transfer focus to the panel of the given type.
 3059    pub fn focus_panel<T: Panel>(
 3060        &mut self,
 3061        window: &mut Window,
 3062        cx: &mut Context<Self>,
 3063    ) -> Option<Entity<T>> {
 3064        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3065        panel.to_any().downcast().ok()
 3066    }
 3067
 3068    /// Focus the panel of the given type if it isn't already focused. If it is
 3069    /// already focused, then transfer focus back to the workspace center.
 3070    pub fn toggle_panel_focus<T: Panel>(
 3071        &mut self,
 3072        window: &mut Window,
 3073        cx: &mut Context<Self>,
 3074    ) -> bool {
 3075        let mut did_focus_panel = false;
 3076        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3077            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3078            did_focus_panel
 3079        });
 3080        did_focus_panel
 3081    }
 3082
 3083    pub fn activate_panel_for_proto_id(
 3084        &mut self,
 3085        panel_id: PanelId,
 3086        window: &mut Window,
 3087        cx: &mut Context<Self>,
 3088    ) -> Option<Arc<dyn PanelHandle>> {
 3089        let mut panel = None;
 3090        for dock in self.all_docks() {
 3091            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3092                panel = dock.update(cx, |dock, cx| {
 3093                    dock.activate_panel(panel_index, window, cx);
 3094                    dock.set_open(true, window, cx);
 3095                    dock.active_panel().cloned()
 3096                });
 3097                break;
 3098            }
 3099        }
 3100
 3101        if panel.is_some() {
 3102            cx.notify();
 3103            self.serialize_workspace(window, cx);
 3104        }
 3105
 3106        panel
 3107    }
 3108
 3109    /// Focus or unfocus the given panel type, depending on the given callback.
 3110    fn focus_or_unfocus_panel<T: Panel>(
 3111        &mut self,
 3112        window: &mut Window,
 3113        cx: &mut Context<Self>,
 3114        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3115    ) -> Option<Arc<dyn PanelHandle>> {
 3116        let mut result_panel = None;
 3117        let mut serialize = false;
 3118        for dock in self.all_docks() {
 3119            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3120                let mut focus_center = false;
 3121                let panel = dock.update(cx, |dock, cx| {
 3122                    dock.activate_panel(panel_index, window, cx);
 3123
 3124                    let panel = dock.active_panel().cloned();
 3125                    if let Some(panel) = panel.as_ref() {
 3126                        if should_focus(&**panel, window, cx) {
 3127                            dock.set_open(true, window, cx);
 3128                            panel.panel_focus_handle(cx).focus(window);
 3129                        } else {
 3130                            focus_center = true;
 3131                        }
 3132                    }
 3133                    panel
 3134                });
 3135
 3136                if focus_center {
 3137                    self.active_pane
 3138                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3139                }
 3140
 3141                result_panel = panel;
 3142                serialize = true;
 3143                break;
 3144            }
 3145        }
 3146
 3147        if serialize {
 3148            self.serialize_workspace(window, cx);
 3149        }
 3150
 3151        cx.notify();
 3152        result_panel
 3153    }
 3154
 3155    /// Open the panel of the given type
 3156    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3157        for dock in self.all_docks() {
 3158            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3159                dock.update(cx, |dock, cx| {
 3160                    dock.activate_panel(panel_index, window, cx);
 3161                    dock.set_open(true, window, cx);
 3162                });
 3163            }
 3164        }
 3165    }
 3166
 3167    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3168        for dock in self.all_docks().iter() {
 3169            dock.update(cx, |dock, cx| {
 3170                if dock.panel::<T>().is_some() {
 3171                    dock.set_open(false, window, cx)
 3172                }
 3173            })
 3174        }
 3175    }
 3176
 3177    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3178        self.all_docks()
 3179            .iter()
 3180            .find_map(|dock| dock.read(cx).panel::<T>())
 3181    }
 3182
 3183    fn dismiss_zoomed_items_to_reveal(
 3184        &mut self,
 3185        dock_to_reveal: Option<DockPosition>,
 3186        window: &mut Window,
 3187        cx: &mut Context<Self>,
 3188    ) {
 3189        // If a center pane is zoomed, unzoom it.
 3190        for pane in &self.panes {
 3191            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3192                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3193            }
 3194        }
 3195
 3196        // If another dock is zoomed, hide it.
 3197        let mut focus_center = false;
 3198        for dock in self.all_docks() {
 3199            dock.update(cx, |dock, cx| {
 3200                if Some(dock.position()) != dock_to_reveal
 3201                    && let Some(panel) = dock.active_panel()
 3202                    && panel.is_zoomed(window, cx)
 3203                {
 3204                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3205                    dock.set_open(false, window, cx);
 3206                }
 3207            });
 3208        }
 3209
 3210        if focus_center {
 3211            self.active_pane
 3212                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3213        }
 3214
 3215        if self.zoomed_position != dock_to_reveal {
 3216            self.zoomed = None;
 3217            self.zoomed_position = None;
 3218            cx.emit(Event::ZoomChanged);
 3219        }
 3220
 3221        cx.notify();
 3222    }
 3223
 3224    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3225        let pane = cx.new(|cx| {
 3226            let mut pane = Pane::new(
 3227                self.weak_handle(),
 3228                self.project.clone(),
 3229                self.pane_history_timestamp.clone(),
 3230                None,
 3231                NewFile.boxed_clone(),
 3232                window,
 3233                cx,
 3234            );
 3235            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3236            pane
 3237        });
 3238        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3239            .detach();
 3240        self.panes.push(pane.clone());
 3241
 3242        window.focus(&pane.focus_handle(cx));
 3243
 3244        cx.emit(Event::PaneAdded(pane.clone()));
 3245        pane
 3246    }
 3247
 3248    pub fn add_item_to_center(
 3249        &mut self,
 3250        item: Box<dyn ItemHandle>,
 3251        window: &mut Window,
 3252        cx: &mut Context<Self>,
 3253    ) -> bool {
 3254        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3255            if let Some(center_pane) = center_pane.upgrade() {
 3256                center_pane.update(cx, |pane, cx| {
 3257                    pane.add_item(item, true, true, None, window, cx)
 3258                });
 3259                true
 3260            } else {
 3261                false
 3262            }
 3263        } else {
 3264            false
 3265        }
 3266    }
 3267
 3268    pub fn add_item_to_active_pane(
 3269        &mut self,
 3270        item: Box<dyn ItemHandle>,
 3271        destination_index: Option<usize>,
 3272        focus_item: bool,
 3273        window: &mut Window,
 3274        cx: &mut App,
 3275    ) {
 3276        self.add_item(
 3277            self.active_pane.clone(),
 3278            item,
 3279            destination_index,
 3280            false,
 3281            focus_item,
 3282            window,
 3283            cx,
 3284        )
 3285    }
 3286
 3287    pub fn add_item(
 3288        &mut self,
 3289        pane: Entity<Pane>,
 3290        item: Box<dyn ItemHandle>,
 3291        destination_index: Option<usize>,
 3292        activate_pane: bool,
 3293        focus_item: bool,
 3294        window: &mut Window,
 3295        cx: &mut App,
 3296    ) {
 3297        if let Some(text) = item.telemetry_event_text(cx) {
 3298            telemetry::event!(text);
 3299        }
 3300
 3301        pane.update(cx, |pane, cx| {
 3302            pane.add_item(
 3303                item,
 3304                activate_pane,
 3305                focus_item,
 3306                destination_index,
 3307                window,
 3308                cx,
 3309            )
 3310        });
 3311    }
 3312
 3313    pub fn split_item(
 3314        &mut self,
 3315        split_direction: SplitDirection,
 3316        item: Box<dyn ItemHandle>,
 3317        window: &mut Window,
 3318        cx: &mut Context<Self>,
 3319    ) {
 3320        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3321        self.add_item(new_pane, item, None, true, true, window, cx);
 3322    }
 3323
 3324    pub fn open_abs_path(
 3325        &mut self,
 3326        abs_path: PathBuf,
 3327        options: OpenOptions,
 3328        window: &mut Window,
 3329        cx: &mut Context<Self>,
 3330    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3331        cx.spawn_in(window, async move |workspace, cx| {
 3332            let open_paths_task_result = workspace
 3333                .update_in(cx, |workspace, window, cx| {
 3334                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3335                })
 3336                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3337                .await;
 3338            anyhow::ensure!(
 3339                open_paths_task_result.len() == 1,
 3340                "open abs path {abs_path:?} task returned incorrect number of results"
 3341            );
 3342            match open_paths_task_result
 3343                .into_iter()
 3344                .next()
 3345                .expect("ensured single task result")
 3346            {
 3347                Some(open_result) => {
 3348                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3349                }
 3350                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3351            }
 3352        })
 3353    }
 3354
 3355    pub fn split_abs_path(
 3356        &mut self,
 3357        abs_path: PathBuf,
 3358        visible: bool,
 3359        window: &mut Window,
 3360        cx: &mut Context<Self>,
 3361    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3362        let project_path_task =
 3363            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3364        cx.spawn_in(window, async move |this, cx| {
 3365            let (_, path) = project_path_task.await?;
 3366            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3367                .await
 3368        })
 3369    }
 3370
 3371    pub fn open_path(
 3372        &mut self,
 3373        path: impl Into<ProjectPath>,
 3374        pane: Option<WeakEntity<Pane>>,
 3375        focus_item: bool,
 3376        window: &mut Window,
 3377        cx: &mut App,
 3378    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3379        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3380    }
 3381
 3382    pub fn open_path_preview(
 3383        &mut self,
 3384        path: impl Into<ProjectPath>,
 3385        pane: Option<WeakEntity<Pane>>,
 3386        focus_item: bool,
 3387        allow_preview: bool,
 3388        activate: bool,
 3389        window: &mut Window,
 3390        cx: &mut App,
 3391    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3392        let pane = pane.unwrap_or_else(|| {
 3393            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3394                self.panes
 3395                    .first()
 3396                    .expect("There must be an active pane")
 3397                    .downgrade()
 3398            })
 3399        });
 3400
 3401        let project_path = path.into();
 3402        let task = self.load_path(project_path.clone(), window, cx);
 3403        window.spawn(cx, async move |cx| {
 3404            let (project_entry_id, build_item) = task.await?;
 3405
 3406            pane.update_in(cx, |pane, window, cx| {
 3407                pane.open_item(
 3408                    project_entry_id,
 3409                    project_path,
 3410                    focus_item,
 3411                    allow_preview,
 3412                    activate,
 3413                    None,
 3414                    window,
 3415                    cx,
 3416                    build_item,
 3417                )
 3418            })
 3419        })
 3420    }
 3421
 3422    pub fn split_path(
 3423        &mut self,
 3424        path: impl Into<ProjectPath>,
 3425        window: &mut Window,
 3426        cx: &mut Context<Self>,
 3427    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3428        self.split_path_preview(path, false, None, window, cx)
 3429    }
 3430
 3431    pub fn split_path_preview(
 3432        &mut self,
 3433        path: impl Into<ProjectPath>,
 3434        allow_preview: bool,
 3435        split_direction: Option<SplitDirection>,
 3436        window: &mut Window,
 3437        cx: &mut Context<Self>,
 3438    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3439        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3440            self.panes
 3441                .first()
 3442                .expect("There must be an active pane")
 3443                .downgrade()
 3444        });
 3445
 3446        if let Member::Pane(center_pane) = &self.center.root
 3447            && center_pane.read(cx).items_len() == 0
 3448        {
 3449            return self.open_path(path, Some(pane), true, window, cx);
 3450        }
 3451
 3452        let project_path = path.into();
 3453        let task = self.load_path(project_path.clone(), window, cx);
 3454        cx.spawn_in(window, async move |this, cx| {
 3455            let (project_entry_id, build_item) = task.await?;
 3456            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3457                let pane = pane.upgrade()?;
 3458                let new_pane = this.split_pane(
 3459                    pane,
 3460                    split_direction.unwrap_or(SplitDirection::Right),
 3461                    window,
 3462                    cx,
 3463                );
 3464                new_pane.update(cx, |new_pane, cx| {
 3465                    Some(new_pane.open_item(
 3466                        project_entry_id,
 3467                        project_path,
 3468                        true,
 3469                        allow_preview,
 3470                        true,
 3471                        None,
 3472                        window,
 3473                        cx,
 3474                        build_item,
 3475                    ))
 3476                })
 3477            })
 3478            .map(|option| option.context("pane was dropped"))?
 3479        })
 3480    }
 3481
 3482    fn load_path(
 3483        &mut self,
 3484        path: ProjectPath,
 3485        window: &mut Window,
 3486        cx: &mut App,
 3487    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3488        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3489        registry.open_path(self.project(), &path, window, cx)
 3490    }
 3491
 3492    pub fn find_project_item<T>(
 3493        &self,
 3494        pane: &Entity<Pane>,
 3495        project_item: &Entity<T::Item>,
 3496        cx: &App,
 3497    ) -> Option<Entity<T>>
 3498    where
 3499        T: ProjectItem,
 3500    {
 3501        use project::ProjectItem as _;
 3502        let project_item = project_item.read(cx);
 3503        let entry_id = project_item.entry_id(cx);
 3504        let project_path = project_item.project_path(cx);
 3505
 3506        let mut item = None;
 3507        if let Some(entry_id) = entry_id {
 3508            item = pane.read(cx).item_for_entry(entry_id, cx);
 3509        }
 3510        if item.is_none()
 3511            && let Some(project_path) = project_path
 3512        {
 3513            item = pane.read(cx).item_for_path(project_path, cx);
 3514        }
 3515
 3516        item.and_then(|item| item.downcast::<T>())
 3517    }
 3518
 3519    pub fn is_project_item_open<T>(
 3520        &self,
 3521        pane: &Entity<Pane>,
 3522        project_item: &Entity<T::Item>,
 3523        cx: &App,
 3524    ) -> bool
 3525    where
 3526        T: ProjectItem,
 3527    {
 3528        self.find_project_item::<T>(pane, project_item, cx)
 3529            .is_some()
 3530    }
 3531
 3532    pub fn open_project_item<T>(
 3533        &mut self,
 3534        pane: Entity<Pane>,
 3535        project_item: Entity<T::Item>,
 3536        activate_pane: bool,
 3537        focus_item: bool,
 3538        window: &mut Window,
 3539        cx: &mut Context<Self>,
 3540    ) -> Entity<T>
 3541    where
 3542        T: ProjectItem,
 3543    {
 3544        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3545            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3546            return item;
 3547        }
 3548
 3549        let item = pane.update(cx, |pane, cx| {
 3550            cx.new(|cx| {
 3551                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3552            })
 3553        });
 3554        let item_id = item.item_id();
 3555        let mut destination_index = None;
 3556        pane.update(cx, |pane, cx| {
 3557            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation
 3558                && let Some(preview_item_id) = pane.preview_item_id()
 3559                && preview_item_id != item_id
 3560            {
 3561                destination_index = pane.close_current_preview_item(window, cx);
 3562            }
 3563            pane.set_preview_item_id(Some(item.item_id()), cx)
 3564        });
 3565
 3566        self.add_item(
 3567            pane,
 3568            Box::new(item.clone()),
 3569            destination_index,
 3570            activate_pane,
 3571            focus_item,
 3572            window,
 3573            cx,
 3574        );
 3575        item
 3576    }
 3577
 3578    pub fn open_shared_screen(
 3579        &mut self,
 3580        peer_id: PeerId,
 3581        window: &mut Window,
 3582        cx: &mut Context<Self>,
 3583    ) {
 3584        if let Some(shared_screen) =
 3585            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3586        {
 3587            self.active_pane.update(cx, |pane, cx| {
 3588                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3589            });
 3590        }
 3591    }
 3592
 3593    pub fn activate_item(
 3594        &mut self,
 3595        item: &dyn ItemHandle,
 3596        activate_pane: bool,
 3597        focus_item: bool,
 3598        window: &mut Window,
 3599        cx: &mut App,
 3600    ) -> bool {
 3601        let result = self.panes.iter().find_map(|pane| {
 3602            pane.read(cx)
 3603                .index_for_item(item)
 3604                .map(|ix| (pane.clone(), ix))
 3605        });
 3606        if let Some((pane, ix)) = result {
 3607            pane.update(cx, |pane, cx| {
 3608                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3609            });
 3610            true
 3611        } else {
 3612            false
 3613        }
 3614    }
 3615
 3616    fn activate_pane_at_index(
 3617        &mut self,
 3618        action: &ActivatePane,
 3619        window: &mut Window,
 3620        cx: &mut Context<Self>,
 3621    ) {
 3622        let panes = self.center.panes();
 3623        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3624            window.focus(&pane.focus_handle(cx));
 3625        } else {
 3626            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx);
 3627        }
 3628    }
 3629
 3630    fn move_item_to_pane_at_index(
 3631        &mut self,
 3632        action: &MoveItemToPane,
 3633        window: &mut Window,
 3634        cx: &mut Context<Self>,
 3635    ) {
 3636        let panes = self.center.panes();
 3637        let destination = match panes.get(action.destination) {
 3638            Some(&destination) => destination.clone(),
 3639            None => {
 3640                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3641                    return;
 3642                }
 3643                let direction = SplitDirection::Right;
 3644                let split_off_pane = self
 3645                    .find_pane_in_direction(direction, cx)
 3646                    .unwrap_or_else(|| self.active_pane.clone());
 3647                let new_pane = self.add_pane(window, cx);
 3648                if self
 3649                    .center
 3650                    .split(&split_off_pane, &new_pane, direction)
 3651                    .log_err()
 3652                    .is_none()
 3653                {
 3654                    return;
 3655                };
 3656                new_pane
 3657            }
 3658        };
 3659
 3660        if action.clone {
 3661            clone_active_item(
 3662                self.database_id(),
 3663                &self.active_pane,
 3664                &destination,
 3665                action.focus,
 3666                window,
 3667                cx,
 3668            )
 3669        } else {
 3670            move_active_item(
 3671                &self.active_pane,
 3672                &destination,
 3673                action.focus,
 3674                true,
 3675                window,
 3676                cx,
 3677            )
 3678        }
 3679    }
 3680
 3681    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3682        let panes = self.center.panes();
 3683        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3684            let next_ix = (ix + 1) % panes.len();
 3685            let next_pane = panes[next_ix].clone();
 3686            window.focus(&next_pane.focus_handle(cx));
 3687        }
 3688    }
 3689
 3690    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3691        let panes = self.center.panes();
 3692        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3693            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3694            let prev_pane = panes[prev_ix].clone();
 3695            window.focus(&prev_pane.focus_handle(cx));
 3696        }
 3697    }
 3698
 3699    pub fn activate_pane_in_direction(
 3700        &mut self,
 3701        direction: SplitDirection,
 3702        window: &mut Window,
 3703        cx: &mut App,
 3704    ) {
 3705        use ActivateInDirectionTarget as Target;
 3706        enum Origin {
 3707            LeftDock,
 3708            RightDock,
 3709            BottomDock,
 3710            Center,
 3711        }
 3712
 3713        let origin: Origin = [
 3714            (&self.left_dock, Origin::LeftDock),
 3715            (&self.right_dock, Origin::RightDock),
 3716            (&self.bottom_dock, Origin::BottomDock),
 3717        ]
 3718        .into_iter()
 3719        .find_map(|(dock, origin)| {
 3720            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3721                Some(origin)
 3722            } else {
 3723                None
 3724            }
 3725        })
 3726        .unwrap_or(Origin::Center);
 3727
 3728        let get_last_active_pane = || {
 3729            let pane = self
 3730                .last_active_center_pane
 3731                .clone()
 3732                .unwrap_or_else(|| {
 3733                    self.panes
 3734                        .first()
 3735                        .expect("There must be an active pane")
 3736                        .downgrade()
 3737                })
 3738                .upgrade()?;
 3739            (pane.read(cx).items_len() != 0).then_some(pane)
 3740        };
 3741
 3742        let try_dock =
 3743            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3744
 3745        let target = match (origin, direction) {
 3746            // We're in the center, so we first try to go to a different pane,
 3747            // otherwise try to go to a dock.
 3748            (Origin::Center, direction) => {
 3749                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3750                    Some(Target::Pane(pane))
 3751                } else {
 3752                    match direction {
 3753                        SplitDirection::Up => None,
 3754                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3755                        SplitDirection::Left => try_dock(&self.left_dock),
 3756                        SplitDirection::Right => try_dock(&self.right_dock),
 3757                    }
 3758                }
 3759            }
 3760
 3761            (Origin::LeftDock, SplitDirection::Right) => {
 3762                if let Some(last_active_pane) = get_last_active_pane() {
 3763                    Some(Target::Pane(last_active_pane))
 3764                } else {
 3765                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3766                }
 3767            }
 3768
 3769            (Origin::LeftDock, SplitDirection::Down)
 3770            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3771
 3772            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3773            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3774            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3775
 3776            (Origin::RightDock, SplitDirection::Left) => {
 3777                if let Some(last_active_pane) = get_last_active_pane() {
 3778                    Some(Target::Pane(last_active_pane))
 3779                } else {
 3780                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3781                }
 3782            }
 3783
 3784            _ => None,
 3785        };
 3786
 3787        match target {
 3788            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3789                let pane = pane.read(cx);
 3790                if let Some(item) = pane.active_item() {
 3791                    item.item_focus_handle(cx).focus(window);
 3792                } else {
 3793                    log::error!(
 3794                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3795                    );
 3796                }
 3797            }
 3798            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3799                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3800                window.defer(cx, move |window, cx| {
 3801                    let dock = dock.read(cx);
 3802                    if let Some(panel) = dock.active_panel() {
 3803                        panel.panel_focus_handle(cx).focus(window);
 3804                    } else {
 3805                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3806                    }
 3807                })
 3808            }
 3809            None => {}
 3810        }
 3811    }
 3812
 3813    pub fn move_item_to_pane_in_direction(
 3814        &mut self,
 3815        action: &MoveItemToPaneInDirection,
 3816        window: &mut Window,
 3817        cx: &mut Context<Self>,
 3818    ) {
 3819        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3820            Some(destination) => destination,
 3821            None => {
 3822                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3823                    return;
 3824                }
 3825                let new_pane = self.add_pane(window, cx);
 3826                if self
 3827                    .center
 3828                    .split(&self.active_pane, &new_pane, action.direction)
 3829                    .log_err()
 3830                    .is_none()
 3831                {
 3832                    return;
 3833                };
 3834                new_pane
 3835            }
 3836        };
 3837
 3838        if action.clone {
 3839            clone_active_item(
 3840                self.database_id(),
 3841                &self.active_pane,
 3842                &destination,
 3843                action.focus,
 3844                window,
 3845                cx,
 3846            )
 3847        } else {
 3848            move_active_item(
 3849                &self.active_pane,
 3850                &destination,
 3851                action.focus,
 3852                true,
 3853                window,
 3854                cx,
 3855            );
 3856        }
 3857    }
 3858
 3859    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3860        self.center.bounding_box_for_pane(pane)
 3861    }
 3862
 3863    pub fn find_pane_in_direction(
 3864        &mut self,
 3865        direction: SplitDirection,
 3866        cx: &App,
 3867    ) -> Option<Entity<Pane>> {
 3868        self.center
 3869            .find_pane_in_direction(&self.active_pane, direction, cx)
 3870            .cloned()
 3871    }
 3872
 3873    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3874        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3875            self.center.swap(&self.active_pane, &to);
 3876            cx.notify();
 3877        }
 3878    }
 3879
 3880    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3881        if self
 3882            .center
 3883            .move_to_border(&self.active_pane, direction)
 3884            .unwrap()
 3885        {
 3886            cx.notify();
 3887        }
 3888    }
 3889
 3890    pub fn resize_pane(
 3891        &mut self,
 3892        axis: gpui::Axis,
 3893        amount: Pixels,
 3894        window: &mut Window,
 3895        cx: &mut Context<Self>,
 3896    ) {
 3897        let docks = self.all_docks();
 3898        let active_dock = docks
 3899            .into_iter()
 3900            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3901
 3902        if let Some(dock) = active_dock {
 3903            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3904                return;
 3905            };
 3906            match dock.read(cx).position() {
 3907                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 3908                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 3909                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 3910            }
 3911        } else {
 3912            self.center
 3913                .resize(&self.active_pane, axis, amount, &self.bounds);
 3914        }
 3915        cx.notify();
 3916    }
 3917
 3918    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 3919        self.center.reset_pane_sizes();
 3920        cx.notify();
 3921    }
 3922
 3923    fn handle_pane_focused(
 3924        &mut self,
 3925        pane: Entity<Pane>,
 3926        window: &mut Window,
 3927        cx: &mut Context<Self>,
 3928    ) {
 3929        // This is explicitly hoisted out of the following check for pane identity as
 3930        // terminal panel panes are not registered as a center panes.
 3931        self.status_bar.update(cx, |status_bar, cx| {
 3932            status_bar.set_active_pane(&pane, window, cx);
 3933        });
 3934        if self.active_pane != pane {
 3935            self.set_active_pane(&pane, window, cx);
 3936        }
 3937
 3938        if self.last_active_center_pane.is_none() {
 3939            self.last_active_center_pane = Some(pane.downgrade());
 3940        }
 3941
 3942        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 3943        if pane.read(cx).is_zoomed() {
 3944            self.zoomed = Some(pane.downgrade().into());
 3945        } else {
 3946            self.zoomed = None;
 3947        }
 3948        self.zoomed_position = None;
 3949        cx.emit(Event::ZoomChanged);
 3950        self.update_active_view_for_followers(window, cx);
 3951        pane.update(cx, |pane, _| {
 3952            pane.track_alternate_file_items();
 3953        });
 3954
 3955        cx.notify();
 3956    }
 3957
 3958    fn set_active_pane(
 3959        &mut self,
 3960        pane: &Entity<Pane>,
 3961        window: &mut Window,
 3962        cx: &mut Context<Self>,
 3963    ) {
 3964        self.active_pane = pane.clone();
 3965        self.active_item_path_changed(window, cx);
 3966        self.last_active_center_pane = Some(pane.downgrade());
 3967    }
 3968
 3969    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3970        self.update_active_view_for_followers(window, cx);
 3971    }
 3972
 3973    fn handle_pane_event(
 3974        &mut self,
 3975        pane: &Entity<Pane>,
 3976        event: &pane::Event,
 3977        window: &mut Window,
 3978        cx: &mut Context<Self>,
 3979    ) {
 3980        let mut serialize_workspace = true;
 3981        match event {
 3982            pane::Event::AddItem { item } => {
 3983                item.added_to_pane(self, pane.clone(), window, cx);
 3984                cx.emit(Event::ItemAdded {
 3985                    item: item.boxed_clone(),
 3986                });
 3987            }
 3988            pane::Event::Split {
 3989                direction,
 3990                clone_active_item,
 3991            } => {
 3992                if *clone_active_item {
 3993                    self.split_and_clone(pane.clone(), *direction, window, cx);
 3994                } else {
 3995                    self.split_and_move(pane.clone(), *direction, window, cx);
 3996                }
 3997            }
 3998            pane::Event::JoinIntoNext => {
 3999                self.join_pane_into_next(pane.clone(), window, cx);
 4000            }
 4001            pane::Event::JoinAll => {
 4002                self.join_all_panes(window, cx);
 4003            }
 4004            pane::Event::Remove { focus_on_pane } => {
 4005                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4006            }
 4007            pane::Event::ActivateItem {
 4008                local,
 4009                focus_changed,
 4010            } => {
 4011                window.invalidate_character_coordinates();
 4012
 4013                pane.update(cx, |pane, _| {
 4014                    pane.track_alternate_file_items();
 4015                });
 4016                if *local {
 4017                    self.unfollow_in_pane(pane, window, cx);
 4018                }
 4019                serialize_workspace = *focus_changed || pane != self.active_pane();
 4020                if pane == self.active_pane() {
 4021                    self.active_item_path_changed(window, cx);
 4022                    self.update_active_view_for_followers(window, cx);
 4023                } else if *local {
 4024                    self.set_active_pane(pane, window, cx);
 4025                }
 4026            }
 4027            pane::Event::UserSavedItem { item, save_intent } => {
 4028                cx.emit(Event::UserSavedItem {
 4029                    pane: pane.downgrade(),
 4030                    item: item.boxed_clone(),
 4031                    save_intent: *save_intent,
 4032                });
 4033                serialize_workspace = false;
 4034            }
 4035            pane::Event::ChangeItemTitle => {
 4036                if *pane == self.active_pane {
 4037                    self.active_item_path_changed(window, cx);
 4038                }
 4039                serialize_workspace = false;
 4040            }
 4041            pane::Event::RemovedItem { item } => {
 4042                cx.emit(Event::ActiveItemChanged);
 4043                self.update_window_edited(window, cx);
 4044                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4045                    && entry.get().entity_id() == pane.entity_id()
 4046                {
 4047                    entry.remove();
 4048                }
 4049                cx.emit(Event::ItemRemoved {
 4050                    item_id: item.item_id(),
 4051                });
 4052            }
 4053            pane::Event::Focus => {
 4054                window.invalidate_character_coordinates();
 4055                self.handle_pane_focused(pane.clone(), window, cx);
 4056            }
 4057            pane::Event::ZoomIn => {
 4058                if *pane == self.active_pane {
 4059                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4060                    if pane.read(cx).has_focus(window, cx) {
 4061                        self.zoomed = Some(pane.downgrade().into());
 4062                        self.zoomed_position = None;
 4063                        cx.emit(Event::ZoomChanged);
 4064                    }
 4065                    cx.notify();
 4066                }
 4067            }
 4068            pane::Event::ZoomOut => {
 4069                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4070                if self.zoomed_position.is_none() {
 4071                    self.zoomed = None;
 4072                    cx.emit(Event::ZoomChanged);
 4073                }
 4074                cx.notify();
 4075            }
 4076            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4077        }
 4078
 4079        if serialize_workspace {
 4080            self.serialize_workspace(window, cx);
 4081        }
 4082    }
 4083
 4084    pub fn unfollow_in_pane(
 4085        &mut self,
 4086        pane: &Entity<Pane>,
 4087        window: &mut Window,
 4088        cx: &mut Context<Workspace>,
 4089    ) -> Option<CollaboratorId> {
 4090        let leader_id = self.leader_for_pane(pane)?;
 4091        self.unfollow(leader_id, window, cx);
 4092        Some(leader_id)
 4093    }
 4094
 4095    pub fn split_pane(
 4096        &mut self,
 4097        pane_to_split: Entity<Pane>,
 4098        split_direction: SplitDirection,
 4099        window: &mut Window,
 4100        cx: &mut Context<Self>,
 4101    ) -> Entity<Pane> {
 4102        let new_pane = self.add_pane(window, cx);
 4103        self.center
 4104            .split(&pane_to_split, &new_pane, split_direction)
 4105            .unwrap();
 4106        cx.notify();
 4107        new_pane
 4108    }
 4109
 4110    pub fn split_and_move(
 4111        &mut self,
 4112        pane: Entity<Pane>,
 4113        direction: SplitDirection,
 4114        window: &mut Window,
 4115        cx: &mut Context<Self>,
 4116    ) {
 4117        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4118            return;
 4119        };
 4120        let new_pane = self.add_pane(window, cx);
 4121        new_pane.update(cx, |pane, cx| {
 4122            pane.add_item(item, true, true, None, window, cx)
 4123        });
 4124        self.center.split(&pane, &new_pane, direction).unwrap();
 4125        cx.notify();
 4126    }
 4127
 4128    pub fn split_and_clone(
 4129        &mut self,
 4130        pane: Entity<Pane>,
 4131        direction: SplitDirection,
 4132        window: &mut Window,
 4133        cx: &mut Context<Self>,
 4134    ) -> Option<Entity<Pane>> {
 4135        let item = pane.read(cx).active_item()?;
 4136        let maybe_pane_handle =
 4137            if let Some(clone) = item.clone_on_split(self.database_id(), window, cx) {
 4138                let new_pane = self.add_pane(window, cx);
 4139                new_pane.update(cx, |pane, cx| {
 4140                    pane.add_item(clone, true, true, None, window, cx)
 4141                });
 4142                self.center.split(&pane, &new_pane, direction).unwrap();
 4143                cx.notify();
 4144                Some(new_pane)
 4145            } else {
 4146                None
 4147            };
 4148        maybe_pane_handle
 4149    }
 4150
 4151    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4152        let active_item = self.active_pane.read(cx).active_item();
 4153        for pane in &self.panes {
 4154            join_pane_into_active(&self.active_pane, pane, window, cx);
 4155        }
 4156        if let Some(active_item) = active_item {
 4157            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4158        }
 4159        cx.notify();
 4160    }
 4161
 4162    pub fn join_pane_into_next(
 4163        &mut self,
 4164        pane: Entity<Pane>,
 4165        window: &mut Window,
 4166        cx: &mut Context<Self>,
 4167    ) {
 4168        let next_pane = self
 4169            .find_pane_in_direction(SplitDirection::Right, cx)
 4170            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4171            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4172            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4173        let Some(next_pane) = next_pane else {
 4174            return;
 4175        };
 4176        move_all_items(&pane, &next_pane, window, cx);
 4177        cx.notify();
 4178    }
 4179
 4180    fn remove_pane(
 4181        &mut self,
 4182        pane: Entity<Pane>,
 4183        focus_on: Option<Entity<Pane>>,
 4184        window: &mut Window,
 4185        cx: &mut Context<Self>,
 4186    ) {
 4187        if self.center.remove(&pane).unwrap() {
 4188            self.force_remove_pane(&pane, &focus_on, window, cx);
 4189            self.unfollow_in_pane(&pane, window, cx);
 4190            self.last_leaders_by_pane.remove(&pane.downgrade());
 4191            for removed_item in pane.read(cx).items() {
 4192                self.panes_by_item.remove(&removed_item.item_id());
 4193            }
 4194
 4195            cx.notify();
 4196        } else {
 4197            self.active_item_path_changed(window, cx);
 4198        }
 4199        cx.emit(Event::PaneRemoved);
 4200    }
 4201
 4202    pub fn panes(&self) -> &[Entity<Pane>] {
 4203        &self.panes
 4204    }
 4205
 4206    pub fn active_pane(&self) -> &Entity<Pane> {
 4207        &self.active_pane
 4208    }
 4209
 4210    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4211        for dock in self.all_docks() {
 4212            if dock.focus_handle(cx).contains_focused(window, cx)
 4213                && let Some(pane) = dock
 4214                    .read(cx)
 4215                    .active_panel()
 4216                    .and_then(|panel| panel.pane(cx))
 4217            {
 4218                return pane;
 4219            }
 4220        }
 4221        self.active_pane().clone()
 4222    }
 4223
 4224    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4225        self.find_pane_in_direction(SplitDirection::Right, cx)
 4226            .unwrap_or_else(|| {
 4227                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4228            })
 4229    }
 4230
 4231    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4232        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4233        weak_pane.upgrade()
 4234    }
 4235
 4236    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4237        self.follower_states.retain(|leader_id, state| {
 4238            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4239                for item in state.items_by_leader_view_id.values() {
 4240                    item.view.set_leader_id(None, window, cx);
 4241                }
 4242                false
 4243            } else {
 4244                true
 4245            }
 4246        });
 4247        cx.notify();
 4248    }
 4249
 4250    pub fn start_following(
 4251        &mut self,
 4252        leader_id: impl Into<CollaboratorId>,
 4253        window: &mut Window,
 4254        cx: &mut Context<Self>,
 4255    ) -> Option<Task<Result<()>>> {
 4256        let leader_id = leader_id.into();
 4257        let pane = self.active_pane().clone();
 4258
 4259        self.last_leaders_by_pane
 4260            .insert(pane.downgrade(), leader_id);
 4261        self.unfollow(leader_id, window, cx);
 4262        self.unfollow_in_pane(&pane, window, cx);
 4263        self.follower_states.insert(
 4264            leader_id,
 4265            FollowerState {
 4266                center_pane: pane.clone(),
 4267                dock_pane: None,
 4268                active_view_id: None,
 4269                items_by_leader_view_id: Default::default(),
 4270            },
 4271        );
 4272        cx.notify();
 4273
 4274        match leader_id {
 4275            CollaboratorId::PeerId(leader_peer_id) => {
 4276                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4277                let project_id = self.project.read(cx).remote_id();
 4278                let request = self.app_state.client.request(proto::Follow {
 4279                    room_id,
 4280                    project_id,
 4281                    leader_id: Some(leader_peer_id),
 4282                });
 4283
 4284                Some(cx.spawn_in(window, async move |this, cx| {
 4285                    let response = request.await?;
 4286                    this.update(cx, |this, _| {
 4287                        let state = this
 4288                            .follower_states
 4289                            .get_mut(&leader_id)
 4290                            .context("following interrupted")?;
 4291                        state.active_view_id = response
 4292                            .active_view
 4293                            .as_ref()
 4294                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4295                        anyhow::Ok(())
 4296                    })??;
 4297                    if let Some(view) = response.active_view {
 4298                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4299                    }
 4300                    this.update_in(cx, |this, window, cx| {
 4301                        this.leader_updated(leader_id, window, cx)
 4302                    })?;
 4303                    Ok(())
 4304                }))
 4305            }
 4306            CollaboratorId::Agent => {
 4307                self.leader_updated(leader_id, window, cx)?;
 4308                Some(Task::ready(Ok(())))
 4309            }
 4310        }
 4311    }
 4312
 4313    pub fn follow_next_collaborator(
 4314        &mut self,
 4315        _: &FollowNextCollaborator,
 4316        window: &mut Window,
 4317        cx: &mut Context<Self>,
 4318    ) {
 4319        let collaborators = self.project.read(cx).collaborators();
 4320        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4321            let mut collaborators = collaborators.keys().copied();
 4322            for peer_id in collaborators.by_ref() {
 4323                if CollaboratorId::PeerId(peer_id) == leader_id {
 4324                    break;
 4325                }
 4326            }
 4327            collaborators.next().map(CollaboratorId::PeerId)
 4328        } else if let Some(last_leader_id) =
 4329            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4330        {
 4331            match last_leader_id {
 4332                CollaboratorId::PeerId(peer_id) => {
 4333                    if collaborators.contains_key(peer_id) {
 4334                        Some(*last_leader_id)
 4335                    } else {
 4336                        None
 4337                    }
 4338                }
 4339                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4340            }
 4341        } else {
 4342            None
 4343        };
 4344
 4345        let pane = self.active_pane.clone();
 4346        let Some(leader_id) = next_leader_id.or_else(|| {
 4347            Some(CollaboratorId::PeerId(
 4348                collaborators.keys().copied().next()?,
 4349            ))
 4350        }) else {
 4351            return;
 4352        };
 4353        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4354            return;
 4355        }
 4356        if let Some(task) = self.start_following(leader_id, window, cx) {
 4357            task.detach_and_log_err(cx)
 4358        }
 4359    }
 4360
 4361    pub fn follow(
 4362        &mut self,
 4363        leader_id: impl Into<CollaboratorId>,
 4364        window: &mut Window,
 4365        cx: &mut Context<Self>,
 4366    ) {
 4367        let leader_id = leader_id.into();
 4368
 4369        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4370            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4371                return;
 4372            };
 4373            let room = room.read(cx);
 4374            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4375                return;
 4376            };
 4377
 4378            let project = self.project.read(cx);
 4379
 4380            let other_project_id = match remote_participant.location {
 4381                call::ParticipantLocation::External => None,
 4382                call::ParticipantLocation::UnsharedProject => None,
 4383                call::ParticipantLocation::SharedProject { project_id } => {
 4384                    if Some(project_id) == project.remote_id() {
 4385                        None
 4386                    } else {
 4387                        Some(project_id)
 4388                    }
 4389                }
 4390            };
 4391
 4392            // if they are active in another project, follow there.
 4393            if let Some(project_id) = other_project_id {
 4394                let app_state = self.app_state.clone();
 4395                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4396                    .detach_and_log_err(cx);
 4397            }
 4398        }
 4399
 4400        // if you're already following, find the right pane and focus it.
 4401        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4402            window.focus(&follower_state.pane().focus_handle(cx));
 4403
 4404            return;
 4405        }
 4406
 4407        // Otherwise, follow.
 4408        if let Some(task) = self.start_following(leader_id, window, cx) {
 4409            task.detach_and_log_err(cx)
 4410        }
 4411    }
 4412
 4413    pub fn unfollow(
 4414        &mut self,
 4415        leader_id: impl Into<CollaboratorId>,
 4416        window: &mut Window,
 4417        cx: &mut Context<Self>,
 4418    ) -> Option<()> {
 4419        cx.notify();
 4420
 4421        let leader_id = leader_id.into();
 4422        let state = self.follower_states.remove(&leader_id)?;
 4423        for (_, item) in state.items_by_leader_view_id {
 4424            item.view.set_leader_id(None, window, cx);
 4425        }
 4426
 4427        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4428            let project_id = self.project.read(cx).remote_id();
 4429            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4430            self.app_state
 4431                .client
 4432                .send(proto::Unfollow {
 4433                    room_id,
 4434                    project_id,
 4435                    leader_id: Some(leader_peer_id),
 4436                })
 4437                .log_err();
 4438        }
 4439
 4440        Some(())
 4441    }
 4442
 4443    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4444        self.follower_states.contains_key(&id.into())
 4445    }
 4446
 4447    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4448        cx.emit(Event::ActiveItemChanged);
 4449        let active_entry = self.active_project_path(cx);
 4450        self.project.update(cx, |project, cx| {
 4451            project.set_active_path(active_entry.clone(), cx)
 4452        });
 4453
 4454        if let Some(project_path) = &active_entry {
 4455            let git_store_entity = self.project.read(cx).git_store().clone();
 4456            git_store_entity.update(cx, |git_store, cx| {
 4457                git_store.set_active_repo_for_path(project_path, cx);
 4458            });
 4459        }
 4460
 4461        self.update_window_title(window, cx);
 4462    }
 4463
 4464    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4465        let project = self.project().read(cx);
 4466        let mut title = String::new();
 4467
 4468        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4469            let name = {
 4470                let settings_location = SettingsLocation {
 4471                    worktree_id: worktree.read(cx).id(),
 4472                    path: RelPath::empty(),
 4473                };
 4474
 4475                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4476                match &settings.project_name {
 4477                    Some(name) => name.as_str(),
 4478                    None => worktree.read(cx).root_name_str(),
 4479                }
 4480            };
 4481            if i > 0 {
 4482                title.push_str(", ");
 4483            }
 4484            title.push_str(name);
 4485        }
 4486
 4487        if title.is_empty() {
 4488            title = "empty project".to_string();
 4489        }
 4490
 4491        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4492            let filename = path.path.file_name().or_else(|| {
 4493                Some(
 4494                    project
 4495                        .worktree_for_id(path.worktree_id, cx)?
 4496                        .read(cx)
 4497                        .root_name_str(),
 4498                )
 4499            });
 4500
 4501            if let Some(filename) = filename {
 4502                title.push_str("");
 4503                title.push_str(filename.as_ref());
 4504            }
 4505        }
 4506
 4507        if project.is_via_collab() {
 4508            title.push_str("");
 4509        } else if project.is_shared() {
 4510            title.push_str("");
 4511        }
 4512
 4513        if let Some(last_title) = self.last_window_title.as_ref()
 4514            && &title == last_title
 4515        {
 4516            return;
 4517        }
 4518        window.set_window_title(&title);
 4519        SystemWindowTabController::update_tab_title(
 4520            cx,
 4521            window.window_handle().window_id(),
 4522            SharedString::from(&title),
 4523        );
 4524        self.last_window_title = Some(title);
 4525    }
 4526
 4527    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4528        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4529        if is_edited != self.window_edited {
 4530            self.window_edited = is_edited;
 4531            window.set_window_edited(self.window_edited)
 4532        }
 4533    }
 4534
 4535    fn update_item_dirty_state(
 4536        &mut self,
 4537        item: &dyn ItemHandle,
 4538        window: &mut Window,
 4539        cx: &mut App,
 4540    ) {
 4541        let is_dirty = item.is_dirty(cx);
 4542        let item_id = item.item_id();
 4543        let was_dirty = self.dirty_items.contains_key(&item_id);
 4544        if is_dirty == was_dirty {
 4545            return;
 4546        }
 4547        if was_dirty {
 4548            self.dirty_items.remove(&item_id);
 4549            self.update_window_edited(window, cx);
 4550            return;
 4551        }
 4552        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4553            let s = item.on_release(
 4554                cx,
 4555                Box::new(move |cx| {
 4556                    window_handle
 4557                        .update(cx, |this, window, cx| {
 4558                            this.dirty_items.remove(&item_id);
 4559                            this.update_window_edited(window, cx)
 4560                        })
 4561                        .ok();
 4562                }),
 4563            );
 4564            self.dirty_items.insert(item_id, s);
 4565            self.update_window_edited(window, cx);
 4566        }
 4567    }
 4568
 4569    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4570        if self.notifications.is_empty() {
 4571            None
 4572        } else {
 4573            Some(
 4574                div()
 4575                    .absolute()
 4576                    .right_3()
 4577                    .bottom_3()
 4578                    .w_112()
 4579                    .h_full()
 4580                    .flex()
 4581                    .flex_col()
 4582                    .justify_end()
 4583                    .gap_2()
 4584                    .children(
 4585                        self.notifications
 4586                            .iter()
 4587                            .map(|(_, notification)| notification.clone().into_any()),
 4588                    ),
 4589            )
 4590        }
 4591    }
 4592
 4593    // RPC handlers
 4594
 4595    fn active_view_for_follower(
 4596        &self,
 4597        follower_project_id: Option<u64>,
 4598        window: &mut Window,
 4599        cx: &mut Context<Self>,
 4600    ) -> Option<proto::View> {
 4601        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4602        let item = item?;
 4603        let leader_id = self
 4604            .pane_for(&*item)
 4605            .and_then(|pane| self.leader_for_pane(&pane));
 4606        let leader_peer_id = match leader_id {
 4607            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4608            Some(CollaboratorId::Agent) | None => None,
 4609        };
 4610
 4611        let item_handle = item.to_followable_item_handle(cx)?;
 4612        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4613        let variant = item_handle.to_state_proto(window, cx)?;
 4614
 4615        if item_handle.is_project_item(window, cx)
 4616            && (follower_project_id.is_none()
 4617                || follower_project_id != self.project.read(cx).remote_id())
 4618        {
 4619            return None;
 4620        }
 4621
 4622        Some(proto::View {
 4623            id: id.to_proto(),
 4624            leader_id: leader_peer_id,
 4625            variant: Some(variant),
 4626            panel_id: panel_id.map(|id| id as i32),
 4627        })
 4628    }
 4629
 4630    fn handle_follow(
 4631        &mut self,
 4632        follower_project_id: Option<u64>,
 4633        window: &mut Window,
 4634        cx: &mut Context<Self>,
 4635    ) -> proto::FollowResponse {
 4636        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4637
 4638        cx.notify();
 4639        proto::FollowResponse {
 4640            // TODO: Remove after version 0.145.x stabilizes.
 4641            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4642            views: active_view.iter().cloned().collect(),
 4643            active_view,
 4644        }
 4645    }
 4646
 4647    fn handle_update_followers(
 4648        &mut self,
 4649        leader_id: PeerId,
 4650        message: proto::UpdateFollowers,
 4651        _window: &mut Window,
 4652        _cx: &mut Context<Self>,
 4653    ) {
 4654        self.leader_updates_tx
 4655            .unbounded_send((leader_id, message))
 4656            .ok();
 4657    }
 4658
 4659    async fn process_leader_update(
 4660        this: &WeakEntity<Self>,
 4661        leader_id: PeerId,
 4662        update: proto::UpdateFollowers,
 4663        cx: &mut AsyncWindowContext,
 4664    ) -> Result<()> {
 4665        match update.variant.context("invalid update")? {
 4666            proto::update_followers::Variant::CreateView(view) => {
 4667                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4668                let should_add_view = this.update(cx, |this, _| {
 4669                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4670                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4671                    } else {
 4672                        anyhow::Ok(false)
 4673                    }
 4674                })??;
 4675
 4676                if should_add_view {
 4677                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4678                }
 4679            }
 4680            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4681                let should_add_view = this.update(cx, |this, _| {
 4682                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4683                        state.active_view_id = update_active_view
 4684                            .view
 4685                            .as_ref()
 4686                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4687
 4688                        if state.active_view_id.is_some_and(|view_id| {
 4689                            !state.items_by_leader_view_id.contains_key(&view_id)
 4690                        }) {
 4691                            anyhow::Ok(true)
 4692                        } else {
 4693                            anyhow::Ok(false)
 4694                        }
 4695                    } else {
 4696                        anyhow::Ok(false)
 4697                    }
 4698                })??;
 4699
 4700                if should_add_view && let Some(view) = update_active_view.view {
 4701                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4702                }
 4703            }
 4704            proto::update_followers::Variant::UpdateView(update_view) => {
 4705                let variant = update_view.variant.context("missing update view variant")?;
 4706                let id = update_view.id.context("missing update view id")?;
 4707                let mut tasks = Vec::new();
 4708                this.update_in(cx, |this, window, cx| {
 4709                    let project = this.project.clone();
 4710                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4711                        let view_id = ViewId::from_proto(id.clone())?;
 4712                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4713                            tasks.push(item.view.apply_update_proto(
 4714                                &project,
 4715                                variant.clone(),
 4716                                window,
 4717                                cx,
 4718                            ));
 4719                        }
 4720                    }
 4721                    anyhow::Ok(())
 4722                })??;
 4723                try_join_all(tasks).await.log_err();
 4724            }
 4725        }
 4726        this.update_in(cx, |this, window, cx| {
 4727            this.leader_updated(leader_id, window, cx)
 4728        })?;
 4729        Ok(())
 4730    }
 4731
 4732    async fn add_view_from_leader(
 4733        this: WeakEntity<Self>,
 4734        leader_id: PeerId,
 4735        view: &proto::View,
 4736        cx: &mut AsyncWindowContext,
 4737    ) -> Result<()> {
 4738        let this = this.upgrade().context("workspace dropped")?;
 4739
 4740        let Some(id) = view.id.clone() else {
 4741            anyhow::bail!("no id for view");
 4742        };
 4743        let id = ViewId::from_proto(id)?;
 4744        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4745
 4746        let pane = this.update(cx, |this, _cx| {
 4747            let state = this
 4748                .follower_states
 4749                .get(&leader_id.into())
 4750                .context("stopped following")?;
 4751            anyhow::Ok(state.pane().clone())
 4752        })??;
 4753        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4754            let client = this.read(cx).client().clone();
 4755            pane.items().find_map(|item| {
 4756                let item = item.to_followable_item_handle(cx)?;
 4757                if item.remote_id(&client, window, cx) == Some(id) {
 4758                    Some(item)
 4759                } else {
 4760                    None
 4761                }
 4762            })
 4763        })?;
 4764        let item = if let Some(existing_item) = existing_item {
 4765            existing_item
 4766        } else {
 4767            let variant = view.variant.clone();
 4768            anyhow::ensure!(variant.is_some(), "missing view variant");
 4769
 4770            let task = cx.update(|window, cx| {
 4771                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4772            })?;
 4773
 4774            let Some(task) = task else {
 4775                anyhow::bail!(
 4776                    "failed to construct view from leader (maybe from a different version of zed?)"
 4777                );
 4778            };
 4779
 4780            let mut new_item = task.await?;
 4781            pane.update_in(cx, |pane, window, cx| {
 4782                let mut item_to_remove = None;
 4783                for (ix, item) in pane.items().enumerate() {
 4784                    if let Some(item) = item.to_followable_item_handle(cx) {
 4785                        match new_item.dedup(item.as_ref(), window, cx) {
 4786                            Some(item::Dedup::KeepExisting) => {
 4787                                new_item =
 4788                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4789                                break;
 4790                            }
 4791                            Some(item::Dedup::ReplaceExisting) => {
 4792                                item_to_remove = Some((ix, item.item_id()));
 4793                                break;
 4794                            }
 4795                            None => {}
 4796                        }
 4797                    }
 4798                }
 4799
 4800                if let Some((ix, id)) = item_to_remove {
 4801                    pane.remove_item(id, false, false, window, cx);
 4802                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4803                }
 4804            })?;
 4805
 4806            new_item
 4807        };
 4808
 4809        this.update_in(cx, |this, window, cx| {
 4810            let state = this.follower_states.get_mut(&leader_id.into())?;
 4811            item.set_leader_id(Some(leader_id.into()), window, cx);
 4812            state.items_by_leader_view_id.insert(
 4813                id,
 4814                FollowerView {
 4815                    view: item,
 4816                    location: panel_id,
 4817                },
 4818            );
 4819
 4820            Some(())
 4821        })?;
 4822
 4823        Ok(())
 4824    }
 4825
 4826    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4827        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4828            return;
 4829        };
 4830
 4831        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4832            let buffer_entity_id = agent_location.buffer.entity_id();
 4833            let view_id = ViewId {
 4834                creator: CollaboratorId::Agent,
 4835                id: buffer_entity_id.as_u64(),
 4836            };
 4837            follower_state.active_view_id = Some(view_id);
 4838
 4839            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4840                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4841                hash_map::Entry::Vacant(entry) => {
 4842                    let existing_view =
 4843                        follower_state
 4844                            .center_pane
 4845                            .read(cx)
 4846                            .items()
 4847                            .find_map(|item| {
 4848                                let item = item.to_followable_item_handle(cx)?;
 4849                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 4850                                    && item.project_item_model_ids(cx).as_slice()
 4851                                        == [buffer_entity_id]
 4852                                {
 4853                                    Some(item)
 4854                                } else {
 4855                                    None
 4856                                }
 4857                            });
 4858                    let view = existing_view.or_else(|| {
 4859                        agent_location.buffer.upgrade().and_then(|buffer| {
 4860                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4861                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4862                            })?
 4863                            .to_followable_item_handle(cx)
 4864                        })
 4865                    });
 4866
 4867                    view.map(|view| {
 4868                        entry.insert(FollowerView {
 4869                            view,
 4870                            location: None,
 4871                        })
 4872                    })
 4873                }
 4874            };
 4875
 4876            if let Some(item) = item {
 4877                item.view
 4878                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4879                item.view
 4880                    .update_agent_location(agent_location.position, window, cx);
 4881            }
 4882        } else {
 4883            follower_state.active_view_id = None;
 4884        }
 4885
 4886        self.leader_updated(CollaboratorId::Agent, window, cx);
 4887    }
 4888
 4889    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4890        let mut is_project_item = true;
 4891        let mut update = proto::UpdateActiveView::default();
 4892        if window.is_window_active() {
 4893            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4894
 4895            if let Some(item) = active_item
 4896                && item.item_focus_handle(cx).contains_focused(window, cx)
 4897            {
 4898                let leader_id = self
 4899                    .pane_for(&*item)
 4900                    .and_then(|pane| self.leader_for_pane(&pane));
 4901                let leader_peer_id = match leader_id {
 4902                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4903                    Some(CollaboratorId::Agent) | None => None,
 4904                };
 4905
 4906                if let Some(item) = item.to_followable_item_handle(cx) {
 4907                    let id = item
 4908                        .remote_id(&self.app_state.client, window, cx)
 4909                        .map(|id| id.to_proto());
 4910
 4911                    if let Some(id) = id
 4912                        && let Some(variant) = item.to_state_proto(window, cx)
 4913                    {
 4914                        let view = Some(proto::View {
 4915                            id: id.clone(),
 4916                            leader_id: leader_peer_id,
 4917                            variant: Some(variant),
 4918                            panel_id: panel_id.map(|id| id as i32),
 4919                        });
 4920
 4921                        is_project_item = item.is_project_item(window, cx);
 4922                        update = proto::UpdateActiveView {
 4923                            view,
 4924                            // TODO: Remove after version 0.145.x stabilizes.
 4925                            id,
 4926                            leader_id: leader_peer_id,
 4927                        };
 4928                    };
 4929                }
 4930            }
 4931        }
 4932
 4933        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 4934        if active_view_id != self.last_active_view_id.as_ref() {
 4935            self.last_active_view_id = active_view_id.cloned();
 4936            self.update_followers(
 4937                is_project_item,
 4938                proto::update_followers::Variant::UpdateActiveView(update),
 4939                window,
 4940                cx,
 4941            );
 4942        }
 4943    }
 4944
 4945    fn active_item_for_followers(
 4946        &self,
 4947        window: &mut Window,
 4948        cx: &mut App,
 4949    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 4950        let mut active_item = None;
 4951        let mut panel_id = None;
 4952        for dock in self.all_docks() {
 4953            if dock.focus_handle(cx).contains_focused(window, cx)
 4954                && let Some(panel) = dock.read(cx).active_panel()
 4955                && let Some(pane) = panel.pane(cx)
 4956                && let Some(item) = pane.read(cx).active_item()
 4957            {
 4958                active_item = Some(item);
 4959                panel_id = panel.remote_id();
 4960                break;
 4961            }
 4962        }
 4963
 4964        if active_item.is_none() {
 4965            active_item = self.active_pane().read(cx).active_item();
 4966        }
 4967        (active_item, panel_id)
 4968    }
 4969
 4970    fn update_followers(
 4971        &self,
 4972        project_only: bool,
 4973        update: proto::update_followers::Variant,
 4974        _: &mut Window,
 4975        cx: &mut App,
 4976    ) -> Option<()> {
 4977        // If this update only applies to for followers in the current project,
 4978        // then skip it unless this project is shared. If it applies to all
 4979        // followers, regardless of project, then set `project_id` to none,
 4980        // indicating that it goes to all followers.
 4981        let project_id = if project_only {
 4982            Some(self.project.read(cx).remote_id()?)
 4983        } else {
 4984            None
 4985        };
 4986        self.app_state().workspace_store.update(cx, |store, cx| {
 4987            store.update_followers(project_id, update, cx)
 4988        })
 4989    }
 4990
 4991    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 4992        self.follower_states.iter().find_map(|(leader_id, state)| {
 4993            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 4994                Some(*leader_id)
 4995            } else {
 4996                None
 4997            }
 4998        })
 4999    }
 5000
 5001    fn leader_updated(
 5002        &mut self,
 5003        leader_id: impl Into<CollaboratorId>,
 5004        window: &mut Window,
 5005        cx: &mut Context<Self>,
 5006    ) -> Option<Box<dyn ItemHandle>> {
 5007        cx.notify();
 5008
 5009        let leader_id = leader_id.into();
 5010        let (panel_id, item) = match leader_id {
 5011            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5012            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5013        };
 5014
 5015        let state = self.follower_states.get(&leader_id)?;
 5016        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5017        let pane;
 5018        if let Some(panel_id) = panel_id {
 5019            pane = self
 5020                .activate_panel_for_proto_id(panel_id, window, cx)?
 5021                .pane(cx)?;
 5022            let state = self.follower_states.get_mut(&leader_id)?;
 5023            state.dock_pane = Some(pane.clone());
 5024        } else {
 5025            pane = state.center_pane.clone();
 5026            let state = self.follower_states.get_mut(&leader_id)?;
 5027            if let Some(dock_pane) = state.dock_pane.take() {
 5028                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5029            }
 5030        }
 5031
 5032        pane.update(cx, |pane, cx| {
 5033            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5034            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5035                pane.activate_item(index, false, false, window, cx);
 5036            } else {
 5037                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5038            }
 5039
 5040            if focus_active_item {
 5041                pane.focus_active_item(window, cx)
 5042            }
 5043        });
 5044
 5045        Some(item)
 5046    }
 5047
 5048    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5049        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5050        let active_view_id = state.active_view_id?;
 5051        Some(
 5052            state
 5053                .items_by_leader_view_id
 5054                .get(&active_view_id)?
 5055                .view
 5056                .boxed_clone(),
 5057        )
 5058    }
 5059
 5060    fn active_item_for_peer(
 5061        &self,
 5062        peer_id: PeerId,
 5063        window: &mut Window,
 5064        cx: &mut Context<Self>,
 5065    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5066        let call = self.active_call()?;
 5067        let room = call.read(cx).room()?.read(cx);
 5068        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5069        let leader_in_this_app;
 5070        let leader_in_this_project;
 5071        match participant.location {
 5072            call::ParticipantLocation::SharedProject { project_id } => {
 5073                leader_in_this_app = true;
 5074                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5075            }
 5076            call::ParticipantLocation::UnsharedProject => {
 5077                leader_in_this_app = true;
 5078                leader_in_this_project = false;
 5079            }
 5080            call::ParticipantLocation::External => {
 5081                leader_in_this_app = false;
 5082                leader_in_this_project = false;
 5083            }
 5084        };
 5085        let state = self.follower_states.get(&peer_id.into())?;
 5086        let mut item_to_activate = None;
 5087        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5088            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5089                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5090            {
 5091                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5092            }
 5093        } else if let Some(shared_screen) =
 5094            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5095        {
 5096            item_to_activate = Some((None, Box::new(shared_screen)));
 5097        }
 5098        item_to_activate
 5099    }
 5100
 5101    fn shared_screen_for_peer(
 5102        &self,
 5103        peer_id: PeerId,
 5104        pane: &Entity<Pane>,
 5105        window: &mut Window,
 5106        cx: &mut App,
 5107    ) -> Option<Entity<SharedScreen>> {
 5108        let call = self.active_call()?;
 5109        let room = call.read(cx).room()?.clone();
 5110        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5111        let track = participant.video_tracks.values().next()?.clone();
 5112        let user = participant.user.clone();
 5113
 5114        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5115            if item.read(cx).peer_id == peer_id {
 5116                return Some(item);
 5117            }
 5118        }
 5119
 5120        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5121    }
 5122
 5123    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5124        if window.is_window_active() {
 5125            self.update_active_view_for_followers(window, cx);
 5126
 5127            if let Some(database_id) = self.database_id {
 5128                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5129                    .detach();
 5130            }
 5131        } else {
 5132            for pane in &self.panes {
 5133                pane.update(cx, |pane, cx| {
 5134                    if let Some(item) = pane.active_item() {
 5135                        item.workspace_deactivated(window, cx);
 5136                    }
 5137                    for item in pane.items() {
 5138                        if matches!(
 5139                            item.workspace_settings(cx).autosave,
 5140                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5141                        ) {
 5142                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5143                                .detach_and_log_err(cx);
 5144                        }
 5145                    }
 5146                });
 5147            }
 5148        }
 5149    }
 5150
 5151    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5152        self.active_call.as_ref().map(|(call, _)| call)
 5153    }
 5154
 5155    fn on_active_call_event(
 5156        &mut self,
 5157        _: &Entity<ActiveCall>,
 5158        event: &call::room::Event,
 5159        window: &mut Window,
 5160        cx: &mut Context<Self>,
 5161    ) {
 5162        match event {
 5163            call::room::Event::ParticipantLocationChanged { participant_id }
 5164            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5165                self.leader_updated(participant_id, window, cx);
 5166            }
 5167            _ => {}
 5168        }
 5169    }
 5170
 5171    pub fn database_id(&self) -> Option<WorkspaceId> {
 5172        self.database_id
 5173    }
 5174
 5175    pub fn session_id(&self) -> Option<String> {
 5176        self.session_id.clone()
 5177    }
 5178
 5179    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5180        let project = self.project().read(cx);
 5181        project
 5182            .visible_worktrees(cx)
 5183            .map(|worktree| worktree.read(cx).abs_path())
 5184            .collect::<Vec<_>>()
 5185    }
 5186
 5187    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5188        match member {
 5189            Member::Axis(PaneAxis { members, .. }) => {
 5190                for child in members.iter() {
 5191                    self.remove_panes(child.clone(), window, cx)
 5192                }
 5193            }
 5194            Member::Pane(pane) => {
 5195                self.force_remove_pane(&pane, &None, window, cx);
 5196            }
 5197        }
 5198    }
 5199
 5200    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5201        self.session_id.take();
 5202        self.serialize_workspace_internal(window, cx)
 5203    }
 5204
 5205    fn force_remove_pane(
 5206        &mut self,
 5207        pane: &Entity<Pane>,
 5208        focus_on: &Option<Entity<Pane>>,
 5209        window: &mut Window,
 5210        cx: &mut Context<Workspace>,
 5211    ) {
 5212        self.panes.retain(|p| p != pane);
 5213        if let Some(focus_on) = focus_on {
 5214            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5215        } else if self.active_pane() == pane {
 5216            self.panes
 5217                .last()
 5218                .unwrap()
 5219                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5220        }
 5221        if self.last_active_center_pane == Some(pane.downgrade()) {
 5222            self.last_active_center_pane = None;
 5223        }
 5224        cx.notify();
 5225    }
 5226
 5227    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5228        if self._schedule_serialize_workspace.is_none() {
 5229            self._schedule_serialize_workspace =
 5230                Some(cx.spawn_in(window, async move |this, cx| {
 5231                    cx.background_executor()
 5232                        .timer(SERIALIZATION_THROTTLE_TIME)
 5233                        .await;
 5234                    this.update_in(cx, |this, window, cx| {
 5235                        this.serialize_workspace_internal(window, cx).detach();
 5236                        this._schedule_serialize_workspace.take();
 5237                    })
 5238                    .log_err();
 5239                }));
 5240        }
 5241    }
 5242
 5243    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5244        let Some(database_id) = self.database_id() else {
 5245            return Task::ready(());
 5246        };
 5247
 5248        fn serialize_pane_handle(
 5249            pane_handle: &Entity<Pane>,
 5250            window: &mut Window,
 5251            cx: &mut App,
 5252        ) -> SerializedPane {
 5253            let (items, active, pinned_count) = {
 5254                let pane = pane_handle.read(cx);
 5255                let active_item_id = pane.active_item().map(|item| item.item_id());
 5256                (
 5257                    pane.items()
 5258                        .filter_map(|handle| {
 5259                            let handle = handle.to_serializable_item_handle(cx)?;
 5260
 5261                            Some(SerializedItem {
 5262                                kind: Arc::from(handle.serialized_item_kind()),
 5263                                item_id: handle.item_id().as_u64(),
 5264                                active: Some(handle.item_id()) == active_item_id,
 5265                                preview: pane.is_active_preview_item(handle.item_id()),
 5266                            })
 5267                        })
 5268                        .collect::<Vec<_>>(),
 5269                    pane.has_focus(window, cx),
 5270                    pane.pinned_count(),
 5271                )
 5272            };
 5273
 5274            SerializedPane::new(items, active, pinned_count)
 5275        }
 5276
 5277        fn build_serialized_pane_group(
 5278            pane_group: &Member,
 5279            window: &mut Window,
 5280            cx: &mut App,
 5281        ) -> SerializedPaneGroup {
 5282            match pane_group {
 5283                Member::Axis(PaneAxis {
 5284                    axis,
 5285                    members,
 5286                    flexes,
 5287                    bounding_boxes: _,
 5288                }) => SerializedPaneGroup::Group {
 5289                    axis: SerializedAxis(*axis),
 5290                    children: members
 5291                        .iter()
 5292                        .map(|member| build_serialized_pane_group(member, window, cx))
 5293                        .collect::<Vec<_>>(),
 5294                    flexes: Some(flexes.lock().clone()),
 5295                },
 5296                Member::Pane(pane_handle) => {
 5297                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5298                }
 5299            }
 5300        }
 5301
 5302        fn build_serialized_docks(
 5303            this: &Workspace,
 5304            window: &mut Window,
 5305            cx: &mut App,
 5306        ) -> DockStructure {
 5307            let left_dock = this.left_dock.read(cx);
 5308            let left_visible = left_dock.is_open();
 5309            let left_active_panel = left_dock
 5310                .active_panel()
 5311                .map(|panel| panel.persistent_name().to_string());
 5312            let left_dock_zoom = left_dock
 5313                .active_panel()
 5314                .map(|panel| panel.is_zoomed(window, cx))
 5315                .unwrap_or(false);
 5316
 5317            let right_dock = this.right_dock.read(cx);
 5318            let right_visible = right_dock.is_open();
 5319            let right_active_panel = right_dock
 5320                .active_panel()
 5321                .map(|panel| panel.persistent_name().to_string());
 5322            let right_dock_zoom = right_dock
 5323                .active_panel()
 5324                .map(|panel| panel.is_zoomed(window, cx))
 5325                .unwrap_or(false);
 5326
 5327            let bottom_dock = this.bottom_dock.read(cx);
 5328            let bottom_visible = bottom_dock.is_open();
 5329            let bottom_active_panel = bottom_dock
 5330                .active_panel()
 5331                .map(|panel| panel.persistent_name().to_string());
 5332            let bottom_dock_zoom = bottom_dock
 5333                .active_panel()
 5334                .map(|panel| panel.is_zoomed(window, cx))
 5335                .unwrap_or(false);
 5336
 5337            DockStructure {
 5338                left: DockData {
 5339                    visible: left_visible,
 5340                    active_panel: left_active_panel,
 5341                    zoom: left_dock_zoom,
 5342                },
 5343                right: DockData {
 5344                    visible: right_visible,
 5345                    active_panel: right_active_panel,
 5346                    zoom: right_dock_zoom,
 5347                },
 5348                bottom: DockData {
 5349                    visible: bottom_visible,
 5350                    active_panel: bottom_active_panel,
 5351                    zoom: bottom_dock_zoom,
 5352                },
 5353            }
 5354        }
 5355
 5356        match self.serialize_workspace_location(cx) {
 5357            WorkspaceLocation::Location(location, paths) => {
 5358                let breakpoints = self.project.update(cx, |project, cx| {
 5359                    project
 5360                        .breakpoint_store()
 5361                        .read(cx)
 5362                        .all_source_breakpoints(cx)
 5363                });
 5364                let user_toolchains = self
 5365                    .project
 5366                    .read(cx)
 5367                    .user_toolchains(cx)
 5368                    .unwrap_or_default();
 5369
 5370                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5371                let docks = build_serialized_docks(self, window, cx);
 5372                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5373
 5374                let serialized_workspace = SerializedWorkspace {
 5375                    id: database_id,
 5376                    location,
 5377                    paths,
 5378                    center_group,
 5379                    window_bounds,
 5380                    display: Default::default(),
 5381                    docks,
 5382                    centered_layout: self.centered_layout,
 5383                    session_id: self.session_id.clone(),
 5384                    breakpoints,
 5385                    window_id: Some(window.window_handle().window_id().as_u64()),
 5386                    user_toolchains,
 5387                };
 5388
 5389                window.spawn(cx, async move |_| {
 5390                    persistence::DB.save_workspace(serialized_workspace).await;
 5391                })
 5392            }
 5393            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5394                persistence::DB
 5395                    .set_session_id(database_id, None)
 5396                    .await
 5397                    .log_err();
 5398            }),
 5399            WorkspaceLocation::None => Task::ready(()),
 5400        }
 5401    }
 5402
 5403    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5404        let paths = PathList::new(&self.root_paths(cx));
 5405        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5406            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5407        } else if self.project.read(cx).is_local() {
 5408            if !paths.is_empty() {
 5409                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5410            } else {
 5411                WorkspaceLocation::DetachFromSession
 5412            }
 5413        } else {
 5414            WorkspaceLocation::None
 5415        }
 5416    }
 5417
 5418    fn update_history(&self, cx: &mut App) {
 5419        let Some(id) = self.database_id() else {
 5420            return;
 5421        };
 5422        if !self.project.read(cx).is_local() {
 5423            return;
 5424        }
 5425        if let Some(manager) = HistoryManager::global(cx) {
 5426            let paths = PathList::new(&self.root_paths(cx));
 5427            manager.update(cx, |this, cx| {
 5428                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5429            });
 5430        }
 5431    }
 5432
 5433    async fn serialize_items(
 5434        this: &WeakEntity<Self>,
 5435        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5436        cx: &mut AsyncWindowContext,
 5437    ) -> Result<()> {
 5438        const CHUNK_SIZE: usize = 200;
 5439
 5440        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5441
 5442        while let Some(items_received) = serializable_items.next().await {
 5443            let unique_items =
 5444                items_received
 5445                    .into_iter()
 5446                    .fold(HashMap::default(), |mut acc, item| {
 5447                        acc.entry(item.item_id()).or_insert(item);
 5448                        acc
 5449                    });
 5450
 5451            // We use into_iter() here so that the references to the items are moved into
 5452            // the tasks and not kept alive while we're sleeping.
 5453            for (_, item) in unique_items.into_iter() {
 5454                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5455                    item.serialize(workspace, false, window, cx)
 5456                }) {
 5457                    cx.background_spawn(async move { task.await.log_err() })
 5458                        .detach();
 5459                }
 5460            }
 5461
 5462            cx.background_executor()
 5463                .timer(SERIALIZATION_THROTTLE_TIME)
 5464                .await;
 5465        }
 5466
 5467        Ok(())
 5468    }
 5469
 5470    pub(crate) fn enqueue_item_serialization(
 5471        &mut self,
 5472        item: Box<dyn SerializableItemHandle>,
 5473    ) -> Result<()> {
 5474        self.serializable_items_tx
 5475            .unbounded_send(item)
 5476            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5477    }
 5478
 5479    pub(crate) fn load_workspace(
 5480        serialized_workspace: SerializedWorkspace,
 5481        paths_to_open: Vec<Option<ProjectPath>>,
 5482        window: &mut Window,
 5483        cx: &mut Context<Workspace>,
 5484    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5485        cx.spawn_in(window, async move |workspace, cx| {
 5486            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5487
 5488            let mut center_group = None;
 5489            let mut center_items = None;
 5490
 5491            // Traverse the splits tree and add to things
 5492            if let Some((group, active_pane, items)) = serialized_workspace
 5493                .center_group
 5494                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5495                .await
 5496            {
 5497                center_items = Some(items);
 5498                center_group = Some((group, active_pane))
 5499            }
 5500
 5501            let mut items_by_project_path = HashMap::default();
 5502            let mut item_ids_by_kind = HashMap::default();
 5503            let mut all_deserialized_items = Vec::default();
 5504            cx.update(|_, cx| {
 5505                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5506                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5507                        item_ids_by_kind
 5508                            .entry(serializable_item_handle.serialized_item_kind())
 5509                            .or_insert(Vec::new())
 5510                            .push(item.item_id().as_u64() as ItemId);
 5511                    }
 5512
 5513                    if let Some(project_path) = item.project_path(cx) {
 5514                        items_by_project_path.insert(project_path, item.clone());
 5515                    }
 5516                    all_deserialized_items.push(item);
 5517                }
 5518            })?;
 5519
 5520            let opened_items = paths_to_open
 5521                .into_iter()
 5522                .map(|path_to_open| {
 5523                    path_to_open
 5524                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5525                })
 5526                .collect::<Vec<_>>();
 5527
 5528            // Remove old panes from workspace panes list
 5529            workspace.update_in(cx, |workspace, window, cx| {
 5530                if let Some((center_group, active_pane)) = center_group {
 5531                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5532
 5533                    // Swap workspace center group
 5534                    workspace.center = PaneGroup::with_root(center_group);
 5535                    if let Some(active_pane) = active_pane {
 5536                        workspace.set_active_pane(&active_pane, window, cx);
 5537                        cx.focus_self(window);
 5538                    } else {
 5539                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5540                    }
 5541                }
 5542
 5543                let docks = serialized_workspace.docks;
 5544
 5545                for (dock, serialized_dock) in [
 5546                    (&mut workspace.right_dock, docks.right),
 5547                    (&mut workspace.left_dock, docks.left),
 5548                    (&mut workspace.bottom_dock, docks.bottom),
 5549                ]
 5550                .iter_mut()
 5551                {
 5552                    dock.update(cx, |dock, cx| {
 5553                        dock.serialized_dock = Some(serialized_dock.clone());
 5554                        dock.restore_state(window, cx);
 5555                    });
 5556                }
 5557
 5558                cx.notify();
 5559            })?;
 5560
 5561            let _ = project
 5562                .update(cx, |project, cx| {
 5563                    project
 5564                        .breakpoint_store()
 5565                        .update(cx, |breakpoint_store, cx| {
 5566                            breakpoint_store
 5567                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5568                        })
 5569                })?
 5570                .await;
 5571
 5572            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5573            // after loading the items, we might have different items and in order to avoid
 5574            // the database filling up, we delete items that haven't been loaded now.
 5575            //
 5576            // The items that have been loaded, have been saved after they've been added to the workspace.
 5577            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5578                item_ids_by_kind
 5579                    .into_iter()
 5580                    .map(|(item_kind, loaded_items)| {
 5581                        SerializableItemRegistry::cleanup(
 5582                            item_kind,
 5583                            serialized_workspace.id,
 5584                            loaded_items,
 5585                            window,
 5586                            cx,
 5587                        )
 5588                        .log_err()
 5589                    })
 5590                    .collect::<Vec<_>>()
 5591            })?;
 5592
 5593            futures::future::join_all(clean_up_tasks).await;
 5594
 5595            workspace
 5596                .update_in(cx, |workspace, window, cx| {
 5597                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5598                    workspace.serialize_workspace_internal(window, cx).detach();
 5599
 5600                    // Ensure that we mark the window as edited if we did load dirty items
 5601                    workspace.update_window_edited(window, cx);
 5602                })
 5603                .ok();
 5604
 5605            Ok(opened_items)
 5606        })
 5607    }
 5608
 5609    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5610        self.add_workspace_actions_listeners(div, window, cx)
 5611            .on_action(cx.listener(
 5612                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5613                    for action in &action_sequence.0 {
 5614                        window.dispatch_action(action.boxed_clone(), cx);
 5615                    }
 5616                },
 5617            ))
 5618            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5619            .on_action(cx.listener(Self::close_all_items_and_panes))
 5620            .on_action(cx.listener(Self::save_all))
 5621            .on_action(cx.listener(Self::send_keystrokes))
 5622            .on_action(cx.listener(Self::add_folder_to_project))
 5623            .on_action(cx.listener(Self::follow_next_collaborator))
 5624            .on_action(cx.listener(Self::close_window))
 5625            .on_action(cx.listener(Self::activate_pane_at_index))
 5626            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5627            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5628            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5629            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5630                let pane = workspace.active_pane().clone();
 5631                workspace.unfollow_in_pane(&pane, window, cx);
 5632            }))
 5633            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5634                workspace
 5635                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5636                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5637            }))
 5638            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5639                workspace
 5640                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5641                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5642            }))
 5643            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5644                workspace
 5645                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5646                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5647            }))
 5648            .on_action(
 5649                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5650                    workspace.activate_previous_pane(window, cx)
 5651                }),
 5652            )
 5653            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5654                workspace.activate_next_pane(window, cx)
 5655            }))
 5656            .on_action(
 5657                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5658                    workspace.activate_next_window(cx)
 5659                }),
 5660            )
 5661            .on_action(
 5662                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5663                    workspace.activate_previous_window(cx)
 5664                }),
 5665            )
 5666            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5667                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5668            }))
 5669            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5670                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5671            }))
 5672            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5673                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5674            }))
 5675            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5676                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5677            }))
 5678            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5679                workspace.activate_next_pane(window, cx)
 5680            }))
 5681            .on_action(cx.listener(
 5682                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5683                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5684                },
 5685            ))
 5686            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5687                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5688            }))
 5689            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5690                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5691            }))
 5692            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5693                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5694            }))
 5695            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5696                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5697            }))
 5698            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5699                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5700            }))
 5701            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5702                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5703            }))
 5704            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5705                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5706            }))
 5707            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5708                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5709            }))
 5710            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5711                this.toggle_dock(DockPosition::Left, window, cx);
 5712            }))
 5713            .on_action(cx.listener(
 5714                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5715                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5716                },
 5717            ))
 5718            .on_action(cx.listener(
 5719                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5720                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5721                },
 5722            ))
 5723            .on_action(cx.listener(
 5724                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5725                    if !workspace.close_active_dock(window, cx) {
 5726                        cx.propagate();
 5727                    }
 5728                },
 5729            ))
 5730            .on_action(
 5731                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5732                    workspace.close_all_docks(window, cx);
 5733                }),
 5734            )
 5735            .on_action(cx.listener(
 5736                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5737                    workspace.clear_all_notifications(cx);
 5738                },
 5739            ))
 5740            .on_action(cx.listener(
 5741                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5742                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5743                        workspace.suppress_notification(&notification_id, cx);
 5744                    }
 5745                },
 5746            ))
 5747            .on_action(cx.listener(
 5748                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5749                    workspace.reopen_closed_item(window, cx).detach();
 5750                },
 5751            ))
 5752            .on_action(cx.listener(
 5753                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5754                    for dock in workspace.all_docks() {
 5755                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5756                            let Some(panel) = dock.read(cx).active_panel() else {
 5757                                return;
 5758                            };
 5759
 5760                            // Set to `None`, then the size will fall back to the default.
 5761                            panel.clone().set_size(None, window, cx);
 5762
 5763                            return;
 5764                        }
 5765                    }
 5766                },
 5767            ))
 5768            .on_action(cx.listener(
 5769                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5770                    for dock in workspace.all_docks() {
 5771                        if let Some(panel) = dock.read(cx).visible_panel() {
 5772                            // Set to `None`, then the size will fall back to the default.
 5773                            panel.clone().set_size(None, window, cx);
 5774                        }
 5775                    }
 5776                },
 5777            ))
 5778            .on_action(cx.listener(
 5779                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5780                    adjust_active_dock_size_by_px(
 5781                        px_with_ui_font_fallback(act.px, cx),
 5782                        workspace,
 5783                        window,
 5784                        cx,
 5785                    );
 5786                },
 5787            ))
 5788            .on_action(cx.listener(
 5789                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5790                    adjust_active_dock_size_by_px(
 5791                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5792                        workspace,
 5793                        window,
 5794                        cx,
 5795                    );
 5796                },
 5797            ))
 5798            .on_action(cx.listener(
 5799                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5800                    adjust_open_docks_size_by_px(
 5801                        px_with_ui_font_fallback(act.px, cx),
 5802                        workspace,
 5803                        window,
 5804                        cx,
 5805                    );
 5806                },
 5807            ))
 5808            .on_action(cx.listener(
 5809                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5810                    adjust_open_docks_size_by_px(
 5811                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5812                        workspace,
 5813                        window,
 5814                        cx,
 5815                    );
 5816                },
 5817            ))
 5818            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5819            .on_action(cx.listener(Workspace::cancel))
 5820    }
 5821
 5822    #[cfg(any(test, feature = "test-support"))]
 5823    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5824        use node_runtime::NodeRuntime;
 5825        use session::Session;
 5826
 5827        let client = project.read(cx).client();
 5828        let user_store = project.read(cx).user_store();
 5829        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5830        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5831        window.activate_window();
 5832        let app_state = Arc::new(AppState {
 5833            languages: project.read(cx).languages().clone(),
 5834            workspace_store,
 5835            client,
 5836            user_store,
 5837            fs: project.read(cx).fs().clone(),
 5838            build_window_options: |_, _| Default::default(),
 5839            node_runtime: NodeRuntime::unavailable(),
 5840            session,
 5841        });
 5842        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5843        workspace
 5844            .active_pane
 5845            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5846        workspace
 5847    }
 5848
 5849    pub fn register_action<A: Action>(
 5850        &mut self,
 5851        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5852    ) -> &mut Self {
 5853        let callback = Arc::new(callback);
 5854
 5855        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5856            let callback = callback.clone();
 5857            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5858                (callback)(workspace, event, window, cx)
 5859            }))
 5860        }));
 5861        self
 5862    }
 5863    pub fn register_action_renderer(
 5864        &mut self,
 5865        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5866    ) -> &mut Self {
 5867        self.workspace_actions.push(Box::new(callback));
 5868        self
 5869    }
 5870
 5871    fn add_workspace_actions_listeners(
 5872        &self,
 5873        mut div: Div,
 5874        window: &mut Window,
 5875        cx: &mut Context<Self>,
 5876    ) -> Div {
 5877        for action in self.workspace_actions.iter() {
 5878            div = (action)(div, self, window, cx)
 5879        }
 5880        div
 5881    }
 5882
 5883    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5884        self.modal_layer.read(cx).has_active_modal()
 5885    }
 5886
 5887    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5888        self.modal_layer.read(cx).active_modal()
 5889    }
 5890
 5891    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5892    where
 5893        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5894    {
 5895        self.modal_layer.update(cx, |modal_layer, cx| {
 5896            modal_layer.toggle_modal(window, cx, build)
 5897        })
 5898    }
 5899
 5900    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 5901        self.modal_layer
 5902            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 5903    }
 5904
 5905    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 5906        self.toast_layer
 5907            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 5908    }
 5909
 5910    pub fn toggle_centered_layout(
 5911        &mut self,
 5912        _: &ToggleCenteredLayout,
 5913        _: &mut Window,
 5914        cx: &mut Context<Self>,
 5915    ) {
 5916        self.centered_layout = !self.centered_layout;
 5917        if let Some(database_id) = self.database_id() {
 5918            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 5919                .detach_and_log_err(cx);
 5920        }
 5921        cx.notify();
 5922    }
 5923
 5924    fn adjust_padding(padding: Option<f32>) -> f32 {
 5925        padding
 5926            .unwrap_or(Self::DEFAULT_PADDING)
 5927            .clamp(0.0, Self::MAX_PADDING)
 5928    }
 5929
 5930    fn render_dock(
 5931        &self,
 5932        position: DockPosition,
 5933        dock: &Entity<Dock>,
 5934        window: &mut Window,
 5935        cx: &mut App,
 5936    ) -> Option<Div> {
 5937        if self.zoomed_position == Some(position) {
 5938            return None;
 5939        }
 5940
 5941        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 5942            let pane = panel.pane(cx)?;
 5943            let follower_states = &self.follower_states;
 5944            leader_border_for_pane(follower_states, &pane, window, cx)
 5945        });
 5946
 5947        Some(
 5948            div()
 5949                .flex()
 5950                .flex_none()
 5951                .overflow_hidden()
 5952                .child(dock.clone())
 5953                .children(leader_border),
 5954        )
 5955    }
 5956
 5957    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 5958        window.root().flatten()
 5959    }
 5960
 5961    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 5962        self.zoomed.as_ref()
 5963    }
 5964
 5965    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 5966        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5967            return;
 5968        };
 5969        let windows = cx.windows();
 5970        let next_window =
 5971            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 5972                || {
 5973                    windows
 5974                        .iter()
 5975                        .cycle()
 5976                        .skip_while(|window| window.window_id() != current_window_id)
 5977                        .nth(1)
 5978                },
 5979            );
 5980
 5981        if let Some(window) = next_window {
 5982            window
 5983                .update(cx, |_, window, _| window.activate_window())
 5984                .ok();
 5985        }
 5986    }
 5987
 5988    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 5989        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5990            return;
 5991        };
 5992        let windows = cx.windows();
 5993        let prev_window =
 5994            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 5995                || {
 5996                    windows
 5997                        .iter()
 5998                        .rev()
 5999                        .cycle()
 6000                        .skip_while(|window| window.window_id() != current_window_id)
 6001                        .nth(1)
 6002                },
 6003            );
 6004
 6005        if let Some(window) = prev_window {
 6006            window
 6007                .update(cx, |_, window, _| window.activate_window())
 6008                .ok();
 6009        }
 6010    }
 6011
 6012    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6013        if cx.stop_active_drag(window) {
 6014        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6015            dismiss_app_notification(&notification_id, cx);
 6016        } else {
 6017            cx.propagate();
 6018        }
 6019    }
 6020
 6021    fn adjust_dock_size_by_px(
 6022        &mut self,
 6023        panel_size: Pixels,
 6024        dock_pos: DockPosition,
 6025        px: Pixels,
 6026        window: &mut Window,
 6027        cx: &mut Context<Self>,
 6028    ) {
 6029        match dock_pos {
 6030            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6031            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6032            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6033        }
 6034    }
 6035
 6036    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6037        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6038
 6039        self.left_dock.update(cx, |left_dock, cx| {
 6040            if WorkspaceSettings::get_global(cx)
 6041                .resize_all_panels_in_dock
 6042                .contains(&DockPosition::Left)
 6043            {
 6044                left_dock.resize_all_panels(Some(size), window, cx);
 6045            } else {
 6046                left_dock.resize_active_panel(Some(size), window, cx);
 6047            }
 6048        });
 6049    }
 6050
 6051    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6052        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6053        self.left_dock.read_with(cx, |left_dock, cx| {
 6054            let left_dock_size = left_dock
 6055                .active_panel_size(window, cx)
 6056                .unwrap_or(Pixels::ZERO);
 6057            if left_dock_size + size > self.bounds.right() {
 6058                size = self.bounds.right() - left_dock_size
 6059            }
 6060        });
 6061        self.right_dock.update(cx, |right_dock, cx| {
 6062            if WorkspaceSettings::get_global(cx)
 6063                .resize_all_panels_in_dock
 6064                .contains(&DockPosition::Right)
 6065            {
 6066                right_dock.resize_all_panels(Some(size), window, cx);
 6067            } else {
 6068                right_dock.resize_active_panel(Some(size), window, cx);
 6069            }
 6070        });
 6071    }
 6072
 6073    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6074        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6075        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6076            if WorkspaceSettings::get_global(cx)
 6077                .resize_all_panels_in_dock
 6078                .contains(&DockPosition::Bottom)
 6079            {
 6080                bottom_dock.resize_all_panels(Some(size), window, cx);
 6081            } else {
 6082                bottom_dock.resize_active_panel(Some(size), window, cx);
 6083            }
 6084        });
 6085    }
 6086
 6087    fn toggle_edit_predictions_all_files(
 6088        &mut self,
 6089        _: &ToggleEditPrediction,
 6090        _window: &mut Window,
 6091        cx: &mut Context<Self>,
 6092    ) {
 6093        let fs = self.project().read(cx).fs().clone();
 6094        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6095        update_settings_file(fs, cx, move |file, _| {
 6096            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6097        });
 6098    }
 6099}
 6100
 6101fn leader_border_for_pane(
 6102    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6103    pane: &Entity<Pane>,
 6104    _: &Window,
 6105    cx: &App,
 6106) -> Option<Div> {
 6107    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6108        if state.pane() == pane {
 6109            Some((*leader_id, state))
 6110        } else {
 6111            None
 6112        }
 6113    })?;
 6114
 6115    let mut leader_color = match leader_id {
 6116        CollaboratorId::PeerId(leader_peer_id) => {
 6117            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6118            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6119
 6120            cx.theme()
 6121                .players()
 6122                .color_for_participant(leader.participant_index.0)
 6123                .cursor
 6124        }
 6125        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6126    };
 6127    leader_color.fade_out(0.3);
 6128    Some(
 6129        div()
 6130            .absolute()
 6131            .size_full()
 6132            .left_0()
 6133            .top_0()
 6134            .border_2()
 6135            .border_color(leader_color),
 6136    )
 6137}
 6138
 6139fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6140    ZED_WINDOW_POSITION
 6141        .zip(*ZED_WINDOW_SIZE)
 6142        .map(|(position, size)| Bounds {
 6143            origin: position,
 6144            size,
 6145        })
 6146}
 6147
 6148fn open_items(
 6149    serialized_workspace: Option<SerializedWorkspace>,
 6150    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6151    window: &mut Window,
 6152    cx: &mut Context<Workspace>,
 6153) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6154    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6155        Workspace::load_workspace(
 6156            serialized_workspace,
 6157            project_paths_to_open
 6158                .iter()
 6159                .map(|(_, project_path)| project_path)
 6160                .cloned()
 6161                .collect(),
 6162            window,
 6163            cx,
 6164        )
 6165    });
 6166
 6167    cx.spawn_in(window, async move |workspace, cx| {
 6168        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6169
 6170        if let Some(restored_items) = restored_items {
 6171            let restored_items = restored_items.await?;
 6172
 6173            let restored_project_paths = restored_items
 6174                .iter()
 6175                .filter_map(|item| {
 6176                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6177                        .ok()
 6178                        .flatten()
 6179                })
 6180                .collect::<HashSet<_>>();
 6181
 6182            for restored_item in restored_items {
 6183                opened_items.push(restored_item.map(Ok));
 6184            }
 6185
 6186            project_paths_to_open
 6187                .iter_mut()
 6188                .for_each(|(_, project_path)| {
 6189                    if let Some(project_path_to_open) = project_path
 6190                        && restored_project_paths.contains(project_path_to_open)
 6191                    {
 6192                        *project_path = None;
 6193                    }
 6194                });
 6195        } else {
 6196            for _ in 0..project_paths_to_open.len() {
 6197                opened_items.push(None);
 6198            }
 6199        }
 6200        assert!(opened_items.len() == project_paths_to_open.len());
 6201
 6202        let tasks =
 6203            project_paths_to_open
 6204                .into_iter()
 6205                .enumerate()
 6206                .map(|(ix, (abs_path, project_path))| {
 6207                    let workspace = workspace.clone();
 6208                    cx.spawn(async move |cx| {
 6209                        let file_project_path = project_path?;
 6210                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6211                            workspace.project().update(cx, |project, cx| {
 6212                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6213                            })
 6214                        });
 6215
 6216                        // We only want to open file paths here. If one of the items
 6217                        // here is a directory, it was already opened further above
 6218                        // with a `find_or_create_worktree`.
 6219                        if let Ok(task) = abs_path_task
 6220                            && task.await.is_none_or(|p| p.is_file())
 6221                        {
 6222                            return Some((
 6223                                ix,
 6224                                workspace
 6225                                    .update_in(cx, |workspace, window, cx| {
 6226                                        workspace.open_path(
 6227                                            file_project_path,
 6228                                            None,
 6229                                            true,
 6230                                            window,
 6231                                            cx,
 6232                                        )
 6233                                    })
 6234                                    .log_err()?
 6235                                    .await,
 6236                            ));
 6237                        }
 6238                        None
 6239                    })
 6240                });
 6241
 6242        let tasks = tasks.collect::<Vec<_>>();
 6243
 6244        let tasks = futures::future::join_all(tasks);
 6245        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6246            opened_items[ix] = Some(path_open_result);
 6247        }
 6248
 6249        Ok(opened_items)
 6250    })
 6251}
 6252
 6253enum ActivateInDirectionTarget {
 6254    Pane(Entity<Pane>),
 6255    Dock(Entity<Dock>),
 6256}
 6257
 6258fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6259    workspace
 6260        .update(cx, |workspace, _, cx| {
 6261            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6262                struct DatabaseFailedNotification;
 6263
 6264                workspace.show_notification(
 6265                    NotificationId::unique::<DatabaseFailedNotification>(),
 6266                    cx,
 6267                    |cx| {
 6268                        cx.new(|cx| {
 6269                            MessageNotification::new("Failed to load the database file.", cx)
 6270                                .primary_message("File an Issue")
 6271                                .primary_icon(IconName::Plus)
 6272                                .primary_on_click(|window, cx| {
 6273                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6274                                })
 6275                        })
 6276                    },
 6277                );
 6278            }
 6279        })
 6280        .log_err();
 6281}
 6282
 6283fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6284    if val == 0 {
 6285        ThemeSettings::get_global(cx).ui_font_size(cx)
 6286    } else {
 6287        px(val as f32)
 6288    }
 6289}
 6290
 6291fn adjust_active_dock_size_by_px(
 6292    px: Pixels,
 6293    workspace: &mut Workspace,
 6294    window: &mut Window,
 6295    cx: &mut Context<Workspace>,
 6296) {
 6297    let Some(active_dock) = workspace
 6298        .all_docks()
 6299        .into_iter()
 6300        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6301    else {
 6302        return;
 6303    };
 6304    let dock = active_dock.read(cx);
 6305    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6306        return;
 6307    };
 6308    let dock_pos = dock.position();
 6309    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6310}
 6311
 6312fn adjust_open_docks_size_by_px(
 6313    px: Pixels,
 6314    workspace: &mut Workspace,
 6315    window: &mut Window,
 6316    cx: &mut Context<Workspace>,
 6317) {
 6318    let docks = workspace
 6319        .all_docks()
 6320        .into_iter()
 6321        .filter_map(|dock| {
 6322            if dock.read(cx).is_open() {
 6323                let dock = dock.read(cx);
 6324                let panel_size = dock.active_panel_size(window, cx)?;
 6325                let dock_pos = dock.position();
 6326                Some((panel_size, dock_pos, px))
 6327            } else {
 6328                None
 6329            }
 6330        })
 6331        .collect::<Vec<_>>();
 6332
 6333    docks
 6334        .into_iter()
 6335        .for_each(|(panel_size, dock_pos, offset)| {
 6336            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6337        });
 6338}
 6339
 6340impl Focusable for Workspace {
 6341    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6342        self.active_pane.focus_handle(cx)
 6343    }
 6344}
 6345
 6346#[derive(Clone)]
 6347struct DraggedDock(DockPosition);
 6348
 6349impl Render for DraggedDock {
 6350    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6351        gpui::Empty
 6352    }
 6353}
 6354
 6355impl Render for Workspace {
 6356    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6357        let mut context = KeyContext::new_with_defaults();
 6358        context.add("Workspace");
 6359        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6360        if let Some(status) = self
 6361            .debugger_provider
 6362            .as_ref()
 6363            .and_then(|provider| provider.active_thread_state(cx))
 6364        {
 6365            match status {
 6366                ThreadStatus::Running | ThreadStatus::Stepping => {
 6367                    context.add("debugger_running");
 6368                }
 6369                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6370                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6371            }
 6372        }
 6373
 6374        let centered_layout = self.centered_layout
 6375            && self.center.panes().len() == 1
 6376            && self.active_item(cx).is_some();
 6377        let render_padding = |size| {
 6378            (size > 0.0).then(|| {
 6379                div()
 6380                    .h_full()
 6381                    .w(relative(size))
 6382                    .bg(cx.theme().colors().editor_background)
 6383                    .border_color(cx.theme().colors().pane_group_border)
 6384            })
 6385        };
 6386        let paddings = if centered_layout {
 6387            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6388            (
 6389                render_padding(Self::adjust_padding(settings.left_padding)),
 6390                render_padding(Self::adjust_padding(settings.right_padding)),
 6391            )
 6392        } else {
 6393            (None, None)
 6394        };
 6395        let ui_font = theme::setup_ui_font(window, cx);
 6396
 6397        let theme = cx.theme().clone();
 6398        let colors = theme.colors();
 6399        let notification_entities = self
 6400            .notifications
 6401            .iter()
 6402            .map(|(_, notification)| notification.entity_id())
 6403            .collect::<Vec<_>>();
 6404        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6405
 6406        client_side_decorations(
 6407            self.actions(div(), window, cx)
 6408                .key_context(context)
 6409                .relative()
 6410                .size_full()
 6411                .flex()
 6412                .flex_col()
 6413                .font(ui_font)
 6414                .gap_0()
 6415                .justify_start()
 6416                .items_start()
 6417                .text_color(colors.text)
 6418                .overflow_hidden()
 6419                .children(self.titlebar_item.clone())
 6420                .on_modifiers_changed(move |_, _, cx| {
 6421                    for &id in &notification_entities {
 6422                        cx.notify(id);
 6423                    }
 6424                })
 6425                .child(
 6426                    div()
 6427                        .size_full()
 6428                        .relative()
 6429                        .flex_1()
 6430                        .flex()
 6431                        .flex_col()
 6432                        .child(
 6433                            div()
 6434                                .id("workspace")
 6435                                .bg(colors.background)
 6436                                .relative()
 6437                                .flex_1()
 6438                                .w_full()
 6439                                .flex()
 6440                                .flex_col()
 6441                                .overflow_hidden()
 6442                                .border_t_1()
 6443                                .border_b_1()
 6444                                .border_color(colors.border)
 6445                                .child({
 6446                                    let this = cx.entity();
 6447                                    canvas(
 6448                                        move |bounds, window, cx| {
 6449                                            this.update(cx, |this, cx| {
 6450                                                let bounds_changed = this.bounds != bounds;
 6451                                                this.bounds = bounds;
 6452
 6453                                                if bounds_changed {
 6454                                                    this.left_dock.update(cx, |dock, cx| {
 6455                                                        dock.clamp_panel_size(
 6456                                                            bounds.size.width,
 6457                                                            window,
 6458                                                            cx,
 6459                                                        )
 6460                                                    });
 6461
 6462                                                    this.right_dock.update(cx, |dock, cx| {
 6463                                                        dock.clamp_panel_size(
 6464                                                            bounds.size.width,
 6465                                                            window,
 6466                                                            cx,
 6467                                                        )
 6468                                                    });
 6469
 6470                                                    this.bottom_dock.update(cx, |dock, cx| {
 6471                                                        dock.clamp_panel_size(
 6472                                                            bounds.size.height,
 6473                                                            window,
 6474                                                            cx,
 6475                                                        )
 6476                                                    });
 6477                                                }
 6478                                            })
 6479                                        },
 6480                                        |_, _, _, _| {},
 6481                                    )
 6482                                    .absolute()
 6483                                    .size_full()
 6484                                })
 6485                                .when(self.zoomed.is_none(), |this| {
 6486                                    this.on_drag_move(cx.listener(
 6487                                        move |workspace,
 6488                                              e: &DragMoveEvent<DraggedDock>,
 6489                                              window,
 6490                                              cx| {
 6491                                            if workspace.previous_dock_drag_coordinates
 6492                                                != Some(e.event.position)
 6493                                            {
 6494                                                workspace.previous_dock_drag_coordinates =
 6495                                                    Some(e.event.position);
 6496                                                match e.drag(cx).0 {
 6497                                                    DockPosition::Left => {
 6498                                                        workspace.resize_left_dock(
 6499                                                            e.event.position.x
 6500                                                                - workspace.bounds.left(),
 6501                                                            window,
 6502                                                            cx,
 6503                                                        );
 6504                                                    }
 6505                                                    DockPosition::Right => {
 6506                                                        workspace.resize_right_dock(
 6507                                                            workspace.bounds.right()
 6508                                                                - e.event.position.x,
 6509                                                            window,
 6510                                                            cx,
 6511                                                        );
 6512                                                    }
 6513                                                    DockPosition::Bottom => {
 6514                                                        workspace.resize_bottom_dock(
 6515                                                            workspace.bounds.bottom()
 6516                                                                - e.event.position.y,
 6517                                                            window,
 6518                                                            cx,
 6519                                                        );
 6520                                                    }
 6521                                                };
 6522                                                workspace.serialize_workspace(window, cx);
 6523                                            }
 6524                                        },
 6525                                    ))
 6526                                })
 6527                                .child({
 6528                                    match bottom_dock_layout {
 6529                                        BottomDockLayout::Full => div()
 6530                                            .flex()
 6531                                            .flex_col()
 6532                                            .h_full()
 6533                                            .child(
 6534                                                div()
 6535                                                    .flex()
 6536                                                    .flex_row()
 6537                                                    .flex_1()
 6538                                                    .overflow_hidden()
 6539                                                    .children(self.render_dock(
 6540                                                        DockPosition::Left,
 6541                                                        &self.left_dock,
 6542                                                        window,
 6543                                                        cx,
 6544                                                    ))
 6545                                                    .child(
 6546                                                        div()
 6547                                                            .flex()
 6548                                                            .flex_col()
 6549                                                            .flex_1()
 6550                                                            .overflow_hidden()
 6551                                                            .child(
 6552                                                                h_flex()
 6553                                                                    .flex_1()
 6554                                                                    .when_some(
 6555                                                                        paddings.0,
 6556                                                                        |this, p| {
 6557                                                                            this.child(
 6558                                                                                p.border_r_1(),
 6559                                                                            )
 6560                                                                        },
 6561                                                                    )
 6562                                                                    .child(self.center.render(
 6563                                                                        self.zoomed.as_ref(),
 6564                                                                        &PaneRenderContext {
 6565                                                                            follower_states:
 6566                                                                                &self.follower_states,
 6567                                                                            active_call: self.active_call(),
 6568                                                                            active_pane: &self.active_pane,
 6569                                                                            app_state: &self.app_state,
 6570                                                                            project: &self.project,
 6571                                                                            workspace: &self.weak_self,
 6572                                                                        },
 6573                                                                        window,
 6574                                                                        cx,
 6575                                                                    ))
 6576                                                                    .when_some(
 6577                                                                        paddings.1,
 6578                                                                        |this, p| {
 6579                                                                            this.child(
 6580                                                                                p.border_l_1(),
 6581                                                                            )
 6582                                                                        },
 6583                                                                    ),
 6584                                                            ),
 6585                                                    )
 6586                                                    .children(self.render_dock(
 6587                                                        DockPosition::Right,
 6588                                                        &self.right_dock,
 6589                                                        window,
 6590                                                        cx,
 6591                                                    )),
 6592                                            )
 6593                                            .child(div().w_full().children(self.render_dock(
 6594                                                DockPosition::Bottom,
 6595                                                &self.bottom_dock,
 6596                                                window,
 6597                                                cx
 6598                                            ))),
 6599
 6600                                        BottomDockLayout::LeftAligned => div()
 6601                                            .flex()
 6602                                            .flex_row()
 6603                                            .h_full()
 6604                                            .child(
 6605                                                div()
 6606                                                    .flex()
 6607                                                    .flex_col()
 6608                                                    .flex_1()
 6609                                                    .h_full()
 6610                                                    .child(
 6611                                                        div()
 6612                                                            .flex()
 6613                                                            .flex_row()
 6614                                                            .flex_1()
 6615                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6616                                                            .child(
 6617                                                                div()
 6618                                                                    .flex()
 6619                                                                    .flex_col()
 6620                                                                    .flex_1()
 6621                                                                    .overflow_hidden()
 6622                                                                    .child(
 6623                                                                        h_flex()
 6624                                                                            .flex_1()
 6625                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6626                                                                            .child(self.center.render(
 6627                                                                                self.zoomed.as_ref(),
 6628                                                                                &PaneRenderContext {
 6629                                                                                    follower_states:
 6630                                                                                        &self.follower_states,
 6631                                                                                    active_call: self.active_call(),
 6632                                                                                    active_pane: &self.active_pane,
 6633                                                                                    app_state: &self.app_state,
 6634                                                                                    project: &self.project,
 6635                                                                                    workspace: &self.weak_self,
 6636                                                                                },
 6637                                                                                window,
 6638                                                                                cx,
 6639                                                                            ))
 6640                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6641                                                                    )
 6642                                                            )
 6643                                                    )
 6644                                                    .child(
 6645                                                        div()
 6646                                                            .w_full()
 6647                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6648                                                    ),
 6649                                            )
 6650                                            .children(self.render_dock(
 6651                                                DockPosition::Right,
 6652                                                &self.right_dock,
 6653                                                window,
 6654                                                cx,
 6655                                            )),
 6656
 6657                                        BottomDockLayout::RightAligned => div()
 6658                                            .flex()
 6659                                            .flex_row()
 6660                                            .h_full()
 6661                                            .children(self.render_dock(
 6662                                                DockPosition::Left,
 6663                                                &self.left_dock,
 6664                                                window,
 6665                                                cx,
 6666                                            ))
 6667                                            .child(
 6668                                                div()
 6669                                                    .flex()
 6670                                                    .flex_col()
 6671                                                    .flex_1()
 6672                                                    .h_full()
 6673                                                    .child(
 6674                                                        div()
 6675                                                            .flex()
 6676                                                            .flex_row()
 6677                                                            .flex_1()
 6678                                                            .child(
 6679                                                                div()
 6680                                                                    .flex()
 6681                                                                    .flex_col()
 6682                                                                    .flex_1()
 6683                                                                    .overflow_hidden()
 6684                                                                    .child(
 6685                                                                        h_flex()
 6686                                                                            .flex_1()
 6687                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6688                                                                            .child(self.center.render(
 6689                                                                                self.zoomed.as_ref(),
 6690                                                                                &PaneRenderContext {
 6691                                                                                    follower_states:
 6692                                                                                        &self.follower_states,
 6693                                                                                    active_call: self.active_call(),
 6694                                                                                    active_pane: &self.active_pane,
 6695                                                                                    app_state: &self.app_state,
 6696                                                                                    project: &self.project,
 6697                                                                                    workspace: &self.weak_self,
 6698                                                                                },
 6699                                                                                window,
 6700                                                                                cx,
 6701                                                                            ))
 6702                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6703                                                                    )
 6704                                                            )
 6705                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6706                                                    )
 6707                                                    .child(
 6708                                                        div()
 6709                                                            .w_full()
 6710                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6711                                                    ),
 6712                                            ),
 6713
 6714                                        BottomDockLayout::Contained => div()
 6715                                            .flex()
 6716                                            .flex_row()
 6717                                            .h_full()
 6718                                            .children(self.render_dock(
 6719                                                DockPosition::Left,
 6720                                                &self.left_dock,
 6721                                                window,
 6722                                                cx,
 6723                                            ))
 6724                                            .child(
 6725                                                div()
 6726                                                    .flex()
 6727                                                    .flex_col()
 6728                                                    .flex_1()
 6729                                                    .overflow_hidden()
 6730                                                    .child(
 6731                                                        h_flex()
 6732                                                            .flex_1()
 6733                                                            .when_some(paddings.0, |this, p| {
 6734                                                                this.child(p.border_r_1())
 6735                                                            })
 6736                                                            .child(self.center.render(
 6737                                                                self.zoomed.as_ref(),
 6738                                                                &PaneRenderContext {
 6739                                                                    follower_states:
 6740                                                                        &self.follower_states,
 6741                                                                    active_call: self.active_call(),
 6742                                                                    active_pane: &self.active_pane,
 6743                                                                    app_state: &self.app_state,
 6744                                                                    project: &self.project,
 6745                                                                    workspace: &self.weak_self,
 6746                                                                },
 6747                                                                window,
 6748                                                                cx,
 6749                                                            ))
 6750                                                            .when_some(paddings.1, |this, p| {
 6751                                                                this.child(p.border_l_1())
 6752                                                            }),
 6753                                                    )
 6754                                                    .children(self.render_dock(
 6755                                                        DockPosition::Bottom,
 6756                                                        &self.bottom_dock,
 6757                                                        window,
 6758                                                        cx,
 6759                                                    )),
 6760                                            )
 6761                                            .children(self.render_dock(
 6762                                                DockPosition::Right,
 6763                                                &self.right_dock,
 6764                                                window,
 6765                                                cx,
 6766                                            )),
 6767                                    }
 6768                                })
 6769                                .children(self.zoomed.as_ref().and_then(|view| {
 6770                                    let zoomed_view = view.upgrade()?;
 6771                                    let div = div()
 6772                                        .occlude()
 6773                                        .absolute()
 6774                                        .overflow_hidden()
 6775                                        .border_color(colors.border)
 6776                                        .bg(colors.background)
 6777                                        .child(zoomed_view)
 6778                                        .inset_0()
 6779                                        .shadow_lg();
 6780
 6781                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 6782                                       return Some(div);
 6783                                    }
 6784
 6785                                    Some(match self.zoomed_position {
 6786                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 6787                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 6788                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 6789                                        None => {
 6790                                            div.top_2().bottom_2().left_2().right_2().border_1()
 6791                                        }
 6792                                    })
 6793                                }))
 6794                                .children(self.render_notifications(window, cx)),
 6795                        )
 6796                        .when(self.status_bar_visible(cx), |parent| {
 6797                            parent.child(self.status_bar.clone())
 6798                        })
 6799                        .child(self.modal_layer.clone())
 6800                        .child(self.toast_layer.clone()),
 6801                ),
 6802            window,
 6803            cx,
 6804        )
 6805    }
 6806}
 6807
 6808impl WorkspaceStore {
 6809    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6810        Self {
 6811            workspaces: Default::default(),
 6812            _subscriptions: vec![
 6813                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6814                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6815            ],
 6816            client,
 6817        }
 6818    }
 6819
 6820    pub fn update_followers(
 6821        &self,
 6822        project_id: Option<u64>,
 6823        update: proto::update_followers::Variant,
 6824        cx: &App,
 6825    ) -> Option<()> {
 6826        let active_call = ActiveCall::try_global(cx)?;
 6827        let room_id = active_call.read(cx).room()?.read(cx).id();
 6828        self.client
 6829            .send(proto::UpdateFollowers {
 6830                room_id,
 6831                project_id,
 6832                variant: Some(update),
 6833            })
 6834            .log_err()
 6835    }
 6836
 6837    pub async fn handle_follow(
 6838        this: Entity<Self>,
 6839        envelope: TypedEnvelope<proto::Follow>,
 6840        mut cx: AsyncApp,
 6841    ) -> Result<proto::FollowResponse> {
 6842        this.update(&mut cx, |this, cx| {
 6843            let follower = Follower {
 6844                project_id: envelope.payload.project_id,
 6845                peer_id: envelope.original_sender_id()?,
 6846            };
 6847
 6848            let mut response = proto::FollowResponse::default();
 6849            this.workspaces.retain(|workspace| {
 6850                workspace
 6851                    .update(cx, |workspace, window, cx| {
 6852                        let handler_response =
 6853                            workspace.handle_follow(follower.project_id, window, cx);
 6854                        if let Some(active_view) = handler_response.active_view
 6855                            && workspace.project.read(cx).remote_id() == follower.project_id
 6856                        {
 6857                            response.active_view = Some(active_view)
 6858                        }
 6859                    })
 6860                    .is_ok()
 6861            });
 6862
 6863            Ok(response)
 6864        })?
 6865    }
 6866
 6867    async fn handle_update_followers(
 6868        this: Entity<Self>,
 6869        envelope: TypedEnvelope<proto::UpdateFollowers>,
 6870        mut cx: AsyncApp,
 6871    ) -> Result<()> {
 6872        let leader_id = envelope.original_sender_id()?;
 6873        let update = envelope.payload;
 6874
 6875        this.update(&mut cx, |this, cx| {
 6876            this.workspaces.retain(|workspace| {
 6877                workspace
 6878                    .update(cx, |workspace, window, cx| {
 6879                        let project_id = workspace.project.read(cx).remote_id();
 6880                        if update.project_id != project_id && update.project_id.is_some() {
 6881                            return;
 6882                        }
 6883                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 6884                    })
 6885                    .is_ok()
 6886            });
 6887            Ok(())
 6888        })?
 6889    }
 6890
 6891    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 6892        &self.workspaces
 6893    }
 6894}
 6895
 6896impl ViewId {
 6897    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 6898        Ok(Self {
 6899            creator: message
 6900                .creator
 6901                .map(CollaboratorId::PeerId)
 6902                .context("creator is missing")?,
 6903            id: message.id,
 6904        })
 6905    }
 6906
 6907    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 6908        if let CollaboratorId::PeerId(peer_id) = self.creator {
 6909            Some(proto::ViewId {
 6910                creator: Some(peer_id),
 6911                id: self.id,
 6912            })
 6913        } else {
 6914            None
 6915        }
 6916    }
 6917}
 6918
 6919impl FollowerState {
 6920    fn pane(&self) -> &Entity<Pane> {
 6921        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 6922    }
 6923}
 6924
 6925pub trait WorkspaceHandle {
 6926    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 6927}
 6928
 6929impl WorkspaceHandle for Entity<Workspace> {
 6930    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 6931        self.read(cx)
 6932            .worktrees(cx)
 6933            .flat_map(|worktree| {
 6934                let worktree_id = worktree.read(cx).id();
 6935                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 6936                    worktree_id,
 6937                    path: f.path.clone(),
 6938                })
 6939            })
 6940            .collect::<Vec<_>>()
 6941    }
 6942}
 6943
 6944pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 6945    DB.last_workspace().await.log_err().flatten()
 6946}
 6947
 6948pub fn last_session_workspace_locations(
 6949    last_session_id: &str,
 6950    last_session_window_stack: Option<Vec<WindowId>>,
 6951) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 6952    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 6953        .log_err()
 6954}
 6955
 6956actions!(
 6957    collab,
 6958    [
 6959        /// Opens the channel notes for the current call.
 6960        ///
 6961        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 6962        /// can be copied via "Copy link to section" in the context menu of the channel notes
 6963        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 6964        OpenChannelNotes,
 6965        /// Mutes your microphone.
 6966        Mute,
 6967        /// Deafens yourself (mute both microphone and speakers).
 6968        Deafen,
 6969        /// Leaves the current call.
 6970        LeaveCall,
 6971        /// Shares the current project with collaborators.
 6972        ShareProject,
 6973        /// Shares your screen with collaborators.
 6974        ScreenShare
 6975    ]
 6976);
 6977actions!(
 6978    zed,
 6979    [
 6980        /// Opens the Zed log file.
 6981        OpenLog
 6982    ]
 6983);
 6984
 6985async fn join_channel_internal(
 6986    channel_id: ChannelId,
 6987    app_state: &Arc<AppState>,
 6988    requesting_window: Option<WindowHandle<Workspace>>,
 6989    active_call: &Entity<ActiveCall>,
 6990    cx: &mut AsyncApp,
 6991) -> Result<bool> {
 6992    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 6993        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 6994            return (false, None);
 6995        };
 6996
 6997        let already_in_channel = room.channel_id() == Some(channel_id);
 6998        let should_prompt = room.is_sharing_project()
 6999            && !room.remote_participants().is_empty()
 7000            && !already_in_channel;
 7001        let open_room = if already_in_channel {
 7002            active_call.room().cloned()
 7003        } else {
 7004            None
 7005        };
 7006        (should_prompt, open_room)
 7007    })?;
 7008
 7009    if let Some(room) = open_room {
 7010        let task = room.update(cx, |room, cx| {
 7011            if let Some((project, host)) = room.most_active_project(cx) {
 7012                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7013            }
 7014
 7015            None
 7016        })?;
 7017        if let Some(task) = task {
 7018            task.await?;
 7019        }
 7020        return anyhow::Ok(true);
 7021    }
 7022
 7023    if should_prompt {
 7024        if let Some(workspace) = requesting_window {
 7025            let answer = workspace
 7026                .update(cx, |_, window, cx| {
 7027                    window.prompt(
 7028                        PromptLevel::Warning,
 7029                        "Do you want to switch channels?",
 7030                        Some("Leaving this call will unshare your current project."),
 7031                        &["Yes, Join Channel", "Cancel"],
 7032                        cx,
 7033                    )
 7034                })?
 7035                .await;
 7036
 7037            if answer == Ok(1) {
 7038                return Ok(false);
 7039            }
 7040        } else {
 7041            return Ok(false); // unreachable!() hopefully
 7042        }
 7043    }
 7044
 7045    let client = cx.update(|cx| active_call.read(cx).client())?;
 7046
 7047    let mut client_status = client.status();
 7048
 7049    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7050    'outer: loop {
 7051        let Some(status) = client_status.recv().await else {
 7052            anyhow::bail!("error connecting");
 7053        };
 7054
 7055        match status {
 7056            Status::Connecting
 7057            | Status::Authenticating
 7058            | Status::Authenticated
 7059            | Status::Reconnecting
 7060            | Status::Reauthenticating
 7061            | Status::Reauthenticated => continue,
 7062            Status::Connected { .. } => break 'outer,
 7063            Status::SignedOut | Status::AuthenticationError => {
 7064                return Err(ErrorCode::SignedOut.into());
 7065            }
 7066            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7067            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7068                return Err(ErrorCode::Disconnected.into());
 7069            }
 7070        }
 7071    }
 7072
 7073    let room = active_call
 7074        .update(cx, |active_call, cx| {
 7075            active_call.join_channel(channel_id, cx)
 7076        })?
 7077        .await?;
 7078
 7079    let Some(room) = room else {
 7080        return anyhow::Ok(true);
 7081    };
 7082
 7083    room.update(cx, |room, _| room.room_update_completed())?
 7084        .await;
 7085
 7086    let task = room.update(cx, |room, cx| {
 7087        if let Some((project, host)) = room.most_active_project(cx) {
 7088            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7089        }
 7090
 7091        // If you are the first to join a channel, see if you should share your project.
 7092        if room.remote_participants().is_empty()
 7093            && !room.local_participant_is_guest()
 7094            && let Some(workspace) = requesting_window
 7095        {
 7096            let project = workspace.update(cx, |workspace, _, cx| {
 7097                let project = workspace.project.read(cx);
 7098
 7099                if !CallSettings::get_global(cx).share_on_join {
 7100                    return None;
 7101                }
 7102
 7103                if (project.is_local() || project.is_via_remote_server())
 7104                    && project.visible_worktrees(cx).any(|tree| {
 7105                        tree.read(cx)
 7106                            .root_entry()
 7107                            .is_some_and(|entry| entry.is_dir())
 7108                    })
 7109                {
 7110                    Some(workspace.project.clone())
 7111                } else {
 7112                    None
 7113                }
 7114            });
 7115            if let Ok(Some(project)) = project {
 7116                return Some(cx.spawn(async move |room, cx| {
 7117                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7118                        .await?;
 7119                    Ok(())
 7120                }));
 7121            }
 7122        }
 7123
 7124        None
 7125    })?;
 7126    if let Some(task) = task {
 7127        task.await?;
 7128        return anyhow::Ok(true);
 7129    }
 7130    anyhow::Ok(false)
 7131}
 7132
 7133pub fn join_channel(
 7134    channel_id: ChannelId,
 7135    app_state: Arc<AppState>,
 7136    requesting_window: Option<WindowHandle<Workspace>>,
 7137    cx: &mut App,
 7138) -> Task<Result<()>> {
 7139    let active_call = ActiveCall::global(cx);
 7140    cx.spawn(async move |cx| {
 7141        let result = join_channel_internal(
 7142            channel_id,
 7143            &app_state,
 7144            requesting_window,
 7145            &active_call,
 7146             cx,
 7147        )
 7148            .await;
 7149
 7150        // join channel succeeded, and opened a window
 7151        if matches!(result, Ok(true)) {
 7152            return anyhow::Ok(());
 7153        }
 7154
 7155        // find an existing workspace to focus and show call controls
 7156        let mut active_window =
 7157            requesting_window.or_else(|| activate_any_workspace_window( cx));
 7158        if active_window.is_none() {
 7159            // no open workspaces, make one to show the error in (blergh)
 7160            let (window_handle, _) = cx
 7161                .update(|cx| {
 7162                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7163                })?
 7164                .await?;
 7165
 7166            if result.is_ok() {
 7167                cx.update(|cx| {
 7168                    cx.dispatch_action(&OpenChannelNotes);
 7169                }).log_err();
 7170            }
 7171
 7172            active_window = Some(window_handle);
 7173        }
 7174
 7175        if let Err(err) = result {
 7176            log::error!("failed to join channel: {}", err);
 7177            if let Some(active_window) = active_window {
 7178                active_window
 7179                    .update(cx, |_, window, cx| {
 7180                        let detail: SharedString = match err.error_code() {
 7181                            ErrorCode::SignedOut => {
 7182                                "Please sign in to continue.".into()
 7183                            }
 7184                            ErrorCode::UpgradeRequired => {
 7185                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7186                            }
 7187                            ErrorCode::NoSuchChannel => {
 7188                                "No matching channel was found. Please check the link and try again.".into()
 7189                            }
 7190                            ErrorCode::Forbidden => {
 7191                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7192                            }
 7193                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7194                            _ => format!("{}\n\nPlease try again.", err).into(),
 7195                        };
 7196                        window.prompt(
 7197                            PromptLevel::Critical,
 7198                            "Failed to join channel",
 7199                            Some(&detail),
 7200                            &["Ok"],
 7201                        cx)
 7202                    })?
 7203                    .await
 7204                    .ok();
 7205            }
 7206        }
 7207
 7208        // return ok, we showed the error to the user.
 7209        anyhow::Ok(())
 7210    })
 7211}
 7212
 7213pub async fn get_any_active_workspace(
 7214    app_state: Arc<AppState>,
 7215    mut cx: AsyncApp,
 7216) -> anyhow::Result<WindowHandle<Workspace>> {
 7217    // find an existing workspace to focus and show call controls
 7218    let active_window = activate_any_workspace_window(&mut cx);
 7219    if active_window.is_none() {
 7220        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7221            .await?;
 7222    }
 7223    activate_any_workspace_window(&mut cx).context("could not open zed")
 7224}
 7225
 7226fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7227    cx.update(|cx| {
 7228        if let Some(workspace_window) = cx
 7229            .active_window()
 7230            .and_then(|window| window.downcast::<Workspace>())
 7231        {
 7232            return Some(workspace_window);
 7233        }
 7234
 7235        for window in cx.windows() {
 7236            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7237                workspace_window
 7238                    .update(cx, |_, window, _| window.activate_window())
 7239                    .ok();
 7240                return Some(workspace_window);
 7241            }
 7242        }
 7243        None
 7244    })
 7245    .ok()
 7246    .flatten()
 7247}
 7248
 7249pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7250    cx.windows()
 7251        .into_iter()
 7252        .filter_map(|window| window.downcast::<Workspace>())
 7253        .filter(|workspace| {
 7254            workspace
 7255                .read(cx)
 7256                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7257        })
 7258        .collect()
 7259}
 7260
 7261#[derive(Default)]
 7262pub struct OpenOptions {
 7263    pub visible: Option<OpenVisible>,
 7264    pub focus: Option<bool>,
 7265    pub open_new_workspace: Option<bool>,
 7266    pub replace_window: Option<WindowHandle<Workspace>>,
 7267    pub env: Option<HashMap<String, String>>,
 7268}
 7269
 7270#[allow(clippy::type_complexity)]
 7271pub fn open_paths(
 7272    abs_paths: &[PathBuf],
 7273    app_state: Arc<AppState>,
 7274    open_options: OpenOptions,
 7275    cx: &mut App,
 7276) -> Task<
 7277    anyhow::Result<(
 7278        WindowHandle<Workspace>,
 7279        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7280    )>,
 7281> {
 7282    let abs_paths = abs_paths.to_vec();
 7283    let mut existing = None;
 7284    let mut best_match = None;
 7285    let mut open_visible = OpenVisible::All;
 7286
 7287    cx.spawn(async move |cx| {
 7288        if open_options.open_new_workspace != Some(true) {
 7289            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7290            let all_metadatas = futures::future::join_all(all_paths)
 7291                .await
 7292                .into_iter()
 7293                .filter_map(|result| result.ok().flatten())
 7294                .collect::<Vec<_>>();
 7295
 7296            cx.update(|cx| {
 7297                for window in local_workspace_windows(cx) {
 7298                    if let Ok(workspace) = window.read(cx) {
 7299                        let m = workspace.project.read(cx).visibility_for_paths(
 7300                            &abs_paths,
 7301                            &all_metadatas,
 7302                            open_options.open_new_workspace == None,
 7303                            cx,
 7304                        );
 7305                        if m > best_match {
 7306                            existing = Some(window);
 7307                            best_match = m;
 7308                        } else if best_match.is_none()
 7309                            && open_options.open_new_workspace == Some(false)
 7310                        {
 7311                            existing = Some(window)
 7312                        }
 7313                    }
 7314                }
 7315            })?;
 7316
 7317            if open_options.open_new_workspace.is_none()
 7318                && existing.is_none()
 7319                && all_metadatas.iter().all(|file| !file.is_dir)
 7320            {
 7321                cx.update(|cx| {
 7322                    if let Some(window) = cx
 7323                        .active_window()
 7324                        .and_then(|window| window.downcast::<Workspace>())
 7325                        && let Ok(workspace) = window.read(cx)
 7326                    {
 7327                        let project = workspace.project().read(cx);
 7328                        if project.is_local() && !project.is_via_collab() {
 7329                            existing = Some(window);
 7330                            open_visible = OpenVisible::None;
 7331                            return;
 7332                        }
 7333                    }
 7334                    for window in local_workspace_windows(cx) {
 7335                        if let Ok(workspace) = window.read(cx) {
 7336                            let project = workspace.project().read(cx);
 7337                            if project.is_via_collab() {
 7338                                continue;
 7339                            }
 7340                            existing = Some(window);
 7341                            open_visible = OpenVisible::None;
 7342                            break;
 7343                        }
 7344                    }
 7345                })?;
 7346            }
 7347        }
 7348
 7349        if let Some(existing) = existing {
 7350            let open_task = existing
 7351                .update(cx, |workspace, window, cx| {
 7352                    window.activate_window();
 7353                    workspace.open_paths(
 7354                        abs_paths,
 7355                        OpenOptions {
 7356                            visible: Some(open_visible),
 7357                            ..Default::default()
 7358                        },
 7359                        None,
 7360                        window,
 7361                        cx,
 7362                    )
 7363                })?
 7364                .await;
 7365
 7366            _ = existing.update(cx, |workspace, _, cx| {
 7367                for item in open_task.iter().flatten() {
 7368                    if let Err(e) = item {
 7369                        workspace.show_error(&e, cx);
 7370                    }
 7371                }
 7372            });
 7373
 7374            Ok((existing, open_task))
 7375        } else {
 7376            cx.update(move |cx| {
 7377                Workspace::new_local(
 7378                    abs_paths,
 7379                    app_state.clone(),
 7380                    open_options.replace_window,
 7381                    open_options.env,
 7382                    cx,
 7383                )
 7384            })?
 7385            .await
 7386        }
 7387    })
 7388}
 7389
 7390pub fn open_new(
 7391    open_options: OpenOptions,
 7392    app_state: Arc<AppState>,
 7393    cx: &mut App,
 7394    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7395) -> Task<anyhow::Result<()>> {
 7396    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7397    cx.spawn(async move |cx| {
 7398        let (workspace, opened_paths) = task.await?;
 7399        workspace.update(cx, |workspace, window, cx| {
 7400            if opened_paths.is_empty() {
 7401                init(workspace, window, cx)
 7402            }
 7403        })?;
 7404        Ok(())
 7405    })
 7406}
 7407
 7408pub fn create_and_open_local_file(
 7409    path: &'static Path,
 7410    window: &mut Window,
 7411    cx: &mut Context<Workspace>,
 7412    default_content: impl 'static + Send + FnOnce() -> Rope,
 7413) -> Task<Result<Box<dyn ItemHandle>>> {
 7414    cx.spawn_in(window, async move |workspace, cx| {
 7415        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7416        if !fs.is_file(path).await {
 7417            fs.create_file(path, Default::default()).await?;
 7418            fs.save(path, &default_content(), Default::default())
 7419                .await?;
 7420        }
 7421
 7422        let mut items = workspace
 7423            .update_in(cx, |workspace, window, cx| {
 7424                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7425                    workspace.open_paths(
 7426                        vec![path.to_path_buf()],
 7427                        OpenOptions {
 7428                            visible: Some(OpenVisible::None),
 7429                            ..Default::default()
 7430                        },
 7431                        None,
 7432                        window,
 7433                        cx,
 7434                    )
 7435                })
 7436            })?
 7437            .await?
 7438            .await;
 7439
 7440        let item = items.pop().flatten();
 7441        item.with_context(|| format!("path {path:?} is not a file"))?
 7442    })
 7443}
 7444
 7445pub fn open_remote_project_with_new_connection(
 7446    window: WindowHandle<Workspace>,
 7447    remote_connection: Arc<dyn RemoteConnection>,
 7448    cancel_rx: oneshot::Receiver<()>,
 7449    delegate: Arc<dyn RemoteClientDelegate>,
 7450    app_state: Arc<AppState>,
 7451    paths: Vec<PathBuf>,
 7452    cx: &mut App,
 7453) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7454    cx.spawn(async move |cx| {
 7455        let (workspace_id, serialized_workspace) =
 7456            serialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 7457                .await?;
 7458
 7459        let session = match cx
 7460            .update(|cx| {
 7461                remote::RemoteClient::new(
 7462                    ConnectionIdentifier::Workspace(workspace_id.0),
 7463                    remote_connection,
 7464                    cancel_rx,
 7465                    delegate,
 7466                    cx,
 7467                )
 7468            })?
 7469            .await?
 7470        {
 7471            Some(result) => result,
 7472            None => return Ok(Vec::new()),
 7473        };
 7474
 7475        let project = cx.update(|cx| {
 7476            project::Project::remote(
 7477                session,
 7478                app_state.client.clone(),
 7479                app_state.node_runtime.clone(),
 7480                app_state.user_store.clone(),
 7481                app_state.languages.clone(),
 7482                app_state.fs.clone(),
 7483                cx,
 7484            )
 7485        })?;
 7486
 7487        open_remote_project_inner(
 7488            project,
 7489            paths,
 7490            workspace_id,
 7491            serialized_workspace,
 7492            app_state,
 7493            window,
 7494            cx,
 7495        )
 7496        .await
 7497    })
 7498}
 7499
 7500pub fn open_remote_project_with_existing_connection(
 7501    connection_options: RemoteConnectionOptions,
 7502    project: Entity<Project>,
 7503    paths: Vec<PathBuf>,
 7504    app_state: Arc<AppState>,
 7505    window: WindowHandle<Workspace>,
 7506    cx: &mut AsyncApp,
 7507) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7508    cx.spawn(async move |cx| {
 7509        let (workspace_id, serialized_workspace) =
 7510            serialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7511
 7512        open_remote_project_inner(
 7513            project,
 7514            paths,
 7515            workspace_id,
 7516            serialized_workspace,
 7517            app_state,
 7518            window,
 7519            cx,
 7520        )
 7521        .await
 7522    })
 7523}
 7524
 7525async fn open_remote_project_inner(
 7526    project: Entity<Project>,
 7527    paths: Vec<PathBuf>,
 7528    workspace_id: WorkspaceId,
 7529    serialized_workspace: Option<SerializedWorkspace>,
 7530    app_state: Arc<AppState>,
 7531    window: WindowHandle<Workspace>,
 7532    cx: &mut AsyncApp,
 7533) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 7534    let toolchains = DB.toolchains(workspace_id).await?;
 7535    for (toolchain, worktree_id, path) in toolchains {
 7536        project
 7537            .update(cx, |this, cx| {
 7538                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7539            })?
 7540            .await;
 7541    }
 7542    let mut project_paths_to_open = vec![];
 7543    let mut project_path_errors = vec![];
 7544
 7545    for path in paths {
 7546        let result = cx
 7547            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7548            .await;
 7549        match result {
 7550            Ok((_, project_path)) => {
 7551                project_paths_to_open.push((path.clone(), Some(project_path)));
 7552            }
 7553            Err(error) => {
 7554                project_path_errors.push(error);
 7555            }
 7556        };
 7557    }
 7558
 7559    if project_paths_to_open.is_empty() {
 7560        return Err(project_path_errors.pop().context("no paths given")?);
 7561    }
 7562
 7563    if let Some(detach_session_task) = window
 7564        .update(cx, |_workspace, window, cx| {
 7565            cx.spawn_in(window, async move |this, cx| {
 7566                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7567            })
 7568        })
 7569        .ok()
 7570    {
 7571        detach_session_task.await.ok();
 7572    }
 7573
 7574    cx.update_window(window.into(), |_, window, cx| {
 7575        window.replace_root(cx, |window, cx| {
 7576            telemetry::event!("SSH Project Opened");
 7577
 7578            let mut workspace =
 7579                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7580            workspace.update_history(cx);
 7581
 7582            if let Some(ref serialized) = serialized_workspace {
 7583                workspace.centered_layout = serialized.centered_layout;
 7584            }
 7585
 7586            workspace
 7587        });
 7588    })?;
 7589
 7590    let items = window
 7591        .update(cx, |_, window, cx| {
 7592            window.activate_window();
 7593            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7594        })?
 7595        .await?;
 7596
 7597    window.update(cx, |workspace, _, cx| {
 7598        for error in project_path_errors {
 7599            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7600                if let Some(path) = error.error_tag("path") {
 7601                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7602                }
 7603            } else {
 7604                workspace.show_error(&error, cx)
 7605            }
 7606        }
 7607    })?;
 7608
 7609    Ok(items.into_iter().map(|item| item?.ok()).collect())
 7610}
 7611
 7612fn serialize_remote_project(
 7613    connection_options: RemoteConnectionOptions,
 7614    paths: Vec<PathBuf>,
 7615    cx: &AsyncApp,
 7616) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 7617    cx.background_spawn(async move {
 7618        let remote_connection_id = persistence::DB
 7619            .get_or_create_remote_connection(connection_options)
 7620            .await?;
 7621
 7622        let serialized_workspace =
 7623            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 7624
 7625        let workspace_id = if let Some(workspace_id) =
 7626            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7627        {
 7628            workspace_id
 7629        } else {
 7630            persistence::DB.next_id().await?
 7631        };
 7632
 7633        Ok((workspace_id, serialized_workspace))
 7634    })
 7635}
 7636
 7637pub fn join_in_room_project(
 7638    project_id: u64,
 7639    follow_user_id: u64,
 7640    app_state: Arc<AppState>,
 7641    cx: &mut App,
 7642) -> Task<Result<()>> {
 7643    let windows = cx.windows();
 7644    cx.spawn(async move |cx| {
 7645        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7646            window_handle
 7647                .downcast::<Workspace>()
 7648                .and_then(|window_handle| {
 7649                    window_handle
 7650                        .update(cx, |workspace, _window, cx| {
 7651                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7652                                Some(window_handle)
 7653                            } else {
 7654                                None
 7655                            }
 7656                        })
 7657                        .unwrap_or(None)
 7658                })
 7659        });
 7660
 7661        let workspace = if let Some(existing_workspace) = existing_workspace {
 7662            existing_workspace
 7663        } else {
 7664            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7665            let room = active_call
 7666                .read_with(cx, |call, _| call.room().cloned())?
 7667                .context("not in a call")?;
 7668            let project = room
 7669                .update(cx, |room, cx| {
 7670                    room.join_project(
 7671                        project_id,
 7672                        app_state.languages.clone(),
 7673                        app_state.fs.clone(),
 7674                        cx,
 7675                    )
 7676                })?
 7677                .await?;
 7678
 7679            let window_bounds_override = window_bounds_env_override();
 7680            cx.update(|cx| {
 7681                let mut options = (app_state.build_window_options)(None, cx);
 7682                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7683                cx.open_window(options, |window, cx| {
 7684                    cx.new(|cx| {
 7685                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7686                    })
 7687                })
 7688            })??
 7689        };
 7690
 7691        workspace.update(cx, |workspace, window, cx| {
 7692            cx.activate(true);
 7693            window.activate_window();
 7694
 7695            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7696                let follow_peer_id = room
 7697                    .read(cx)
 7698                    .remote_participants()
 7699                    .iter()
 7700                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7701                    .map(|(_, p)| p.peer_id)
 7702                    .or_else(|| {
 7703                        // If we couldn't follow the given user, follow the host instead.
 7704                        let collaborator = workspace
 7705                            .project()
 7706                            .read(cx)
 7707                            .collaborators()
 7708                            .values()
 7709                            .find(|collaborator| collaborator.is_host)?;
 7710                        Some(collaborator.peer_id)
 7711                    });
 7712
 7713                if let Some(follow_peer_id) = follow_peer_id {
 7714                    workspace.follow(follow_peer_id, window, cx);
 7715                }
 7716            }
 7717        })?;
 7718
 7719        anyhow::Ok(())
 7720    })
 7721}
 7722
 7723pub fn reload(cx: &mut App) {
 7724    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7725    let mut workspace_windows = cx
 7726        .windows()
 7727        .into_iter()
 7728        .filter_map(|window| window.downcast::<Workspace>())
 7729        .collect::<Vec<_>>();
 7730
 7731    // If multiple windows have unsaved changes, and need a save prompt,
 7732    // prompt in the active window before switching to a different window.
 7733    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7734
 7735    let mut prompt = None;
 7736    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7737        prompt = window
 7738            .update(cx, |_, window, cx| {
 7739                window.prompt(
 7740                    PromptLevel::Info,
 7741                    "Are you sure you want to restart?",
 7742                    None,
 7743                    &["Restart", "Cancel"],
 7744                    cx,
 7745                )
 7746            })
 7747            .ok();
 7748    }
 7749
 7750    cx.spawn(async move |cx| {
 7751        if let Some(prompt) = prompt {
 7752            let answer = prompt.await?;
 7753            if answer != 0 {
 7754                return Ok(());
 7755            }
 7756        }
 7757
 7758        // If the user cancels any save prompt, then keep the app open.
 7759        for window in workspace_windows {
 7760            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7761                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7762            }) && !should_close.await?
 7763            {
 7764                return Ok(());
 7765            }
 7766        }
 7767        cx.update(|cx| cx.restart())
 7768    })
 7769    .detach_and_log_err(cx);
 7770}
 7771
 7772fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7773    let mut parts = value.split(',');
 7774    let x: usize = parts.next()?.parse().ok()?;
 7775    let y: usize = parts.next()?.parse().ok()?;
 7776    Some(point(px(x as f32), px(y as f32)))
 7777}
 7778
 7779fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7780    let mut parts = value.split(',');
 7781    let width: usize = parts.next()?.parse().ok()?;
 7782    let height: usize = parts.next()?.parse().ok()?;
 7783    Some(size(px(width as f32), px(height as f32)))
 7784}
 7785
 7786/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7787pub fn client_side_decorations(
 7788    element: impl IntoElement,
 7789    window: &mut Window,
 7790    cx: &mut App,
 7791) -> Stateful<Div> {
 7792    const BORDER_SIZE: Pixels = px(1.0);
 7793    let decorations = window.window_decorations();
 7794
 7795    match decorations {
 7796        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7797        Decorations::Server => window.set_client_inset(px(0.0)),
 7798    }
 7799
 7800    struct GlobalResizeEdge(ResizeEdge);
 7801    impl Global for GlobalResizeEdge {}
 7802
 7803    div()
 7804        .id("window-backdrop")
 7805        .bg(transparent_black())
 7806        .map(|div| match decorations {
 7807            Decorations::Server => div,
 7808            Decorations::Client { tiling, .. } => div
 7809                .when(!(tiling.top || tiling.right), |div| {
 7810                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7811                })
 7812                .when(!(tiling.top || tiling.left), |div| {
 7813                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7814                })
 7815                .when(!(tiling.bottom || tiling.right), |div| {
 7816                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7817                })
 7818                .when(!(tiling.bottom || tiling.left), |div| {
 7819                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7820                })
 7821                .when(!tiling.top, |div| {
 7822                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7823                })
 7824                .when(!tiling.bottom, |div| {
 7825                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7826                })
 7827                .when(!tiling.left, |div| {
 7828                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7829                })
 7830                .when(!tiling.right, |div| {
 7831                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7832                })
 7833                .on_mouse_move(move |e, window, cx| {
 7834                    let size = window.window_bounds().get_bounds().size;
 7835                    let pos = e.position;
 7836
 7837                    let new_edge =
 7838                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 7839
 7840                    let edge = cx.try_global::<GlobalResizeEdge>();
 7841                    if new_edge != edge.map(|edge| edge.0) {
 7842                        window
 7843                            .window_handle()
 7844                            .update(cx, |workspace, _, cx| {
 7845                                cx.notify(workspace.entity_id());
 7846                            })
 7847                            .ok();
 7848                    }
 7849                })
 7850                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 7851                    let size = window.window_bounds().get_bounds().size;
 7852                    let pos = e.position;
 7853
 7854                    let edge = match resize_edge(
 7855                        pos,
 7856                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 7857                        size,
 7858                        tiling,
 7859                    ) {
 7860                        Some(value) => value,
 7861                        None => return,
 7862                    };
 7863
 7864                    window.start_window_resize(edge);
 7865                }),
 7866        })
 7867        .size_full()
 7868        .child(
 7869            div()
 7870                .cursor(CursorStyle::Arrow)
 7871                .map(|div| match decorations {
 7872                    Decorations::Server => div,
 7873                    Decorations::Client { tiling } => div
 7874                        .border_color(cx.theme().colors().border)
 7875                        .when(!(tiling.top || tiling.right), |div| {
 7876                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7877                        })
 7878                        .when(!(tiling.top || tiling.left), |div| {
 7879                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7880                        })
 7881                        .when(!(tiling.bottom || tiling.right), |div| {
 7882                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7883                        })
 7884                        .when(!(tiling.bottom || tiling.left), |div| {
 7885                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7886                        })
 7887                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 7888                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 7889                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 7890                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 7891                        .when(!tiling.is_tiled(), |div| {
 7892                            div.shadow(vec![gpui::BoxShadow {
 7893                                color: Hsla {
 7894                                    h: 0.,
 7895                                    s: 0.,
 7896                                    l: 0.,
 7897                                    a: 0.4,
 7898                                },
 7899                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 7900                                spread_radius: px(0.),
 7901                                offset: point(px(0.0), px(0.0)),
 7902                            }])
 7903                        }),
 7904                })
 7905                .on_mouse_move(|_e, _, cx| {
 7906                    cx.stop_propagation();
 7907                })
 7908                .size_full()
 7909                .child(element),
 7910        )
 7911        .map(|div| match decorations {
 7912            Decorations::Server => div,
 7913            Decorations::Client { tiling, .. } => div.child(
 7914                canvas(
 7915                    |_bounds, window, _| {
 7916                        window.insert_hitbox(
 7917                            Bounds::new(
 7918                                point(px(0.0), px(0.0)),
 7919                                window.window_bounds().get_bounds().size,
 7920                            ),
 7921                            HitboxBehavior::Normal,
 7922                        )
 7923                    },
 7924                    move |_bounds, hitbox, window, cx| {
 7925                        let mouse = window.mouse_position();
 7926                        let size = window.window_bounds().get_bounds().size;
 7927                        let Some(edge) =
 7928                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 7929                        else {
 7930                            return;
 7931                        };
 7932                        cx.set_global(GlobalResizeEdge(edge));
 7933                        window.set_cursor_style(
 7934                            match edge {
 7935                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 7936                                ResizeEdge::Left | ResizeEdge::Right => {
 7937                                    CursorStyle::ResizeLeftRight
 7938                                }
 7939                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 7940                                    CursorStyle::ResizeUpLeftDownRight
 7941                                }
 7942                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 7943                                    CursorStyle::ResizeUpRightDownLeft
 7944                                }
 7945                            },
 7946                            &hitbox,
 7947                        );
 7948                    },
 7949                )
 7950                .size_full()
 7951                .absolute(),
 7952            ),
 7953        })
 7954}
 7955
 7956fn resize_edge(
 7957    pos: Point<Pixels>,
 7958    shadow_size: Pixels,
 7959    window_size: Size<Pixels>,
 7960    tiling: Tiling,
 7961) -> Option<ResizeEdge> {
 7962    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 7963    if bounds.contains(&pos) {
 7964        return None;
 7965    }
 7966
 7967    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 7968    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 7969    if !tiling.top && top_left_bounds.contains(&pos) {
 7970        return Some(ResizeEdge::TopLeft);
 7971    }
 7972
 7973    let top_right_bounds = Bounds::new(
 7974        Point::new(window_size.width - corner_size.width, px(0.)),
 7975        corner_size,
 7976    );
 7977    if !tiling.top && top_right_bounds.contains(&pos) {
 7978        return Some(ResizeEdge::TopRight);
 7979    }
 7980
 7981    let bottom_left_bounds = Bounds::new(
 7982        Point::new(px(0.), window_size.height - corner_size.height),
 7983        corner_size,
 7984    );
 7985    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 7986        return Some(ResizeEdge::BottomLeft);
 7987    }
 7988
 7989    let bottom_right_bounds = Bounds::new(
 7990        Point::new(
 7991            window_size.width - corner_size.width,
 7992            window_size.height - corner_size.height,
 7993        ),
 7994        corner_size,
 7995    );
 7996    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 7997        return Some(ResizeEdge::BottomRight);
 7998    }
 7999
 8000    if !tiling.top && pos.y < shadow_size {
 8001        Some(ResizeEdge::Top)
 8002    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8003        Some(ResizeEdge::Bottom)
 8004    } else if !tiling.left && pos.x < shadow_size {
 8005        Some(ResizeEdge::Left)
 8006    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8007        Some(ResizeEdge::Right)
 8008    } else {
 8009        None
 8010    }
 8011}
 8012
 8013fn join_pane_into_active(
 8014    active_pane: &Entity<Pane>,
 8015    pane: &Entity<Pane>,
 8016    window: &mut Window,
 8017    cx: &mut App,
 8018) {
 8019    if pane == active_pane {
 8020    } else if pane.read(cx).items_len() == 0 {
 8021        pane.update(cx, |_, cx| {
 8022            cx.emit(pane::Event::Remove {
 8023                focus_on_pane: None,
 8024            });
 8025        })
 8026    } else {
 8027        move_all_items(pane, active_pane, window, cx);
 8028    }
 8029}
 8030
 8031fn move_all_items(
 8032    from_pane: &Entity<Pane>,
 8033    to_pane: &Entity<Pane>,
 8034    window: &mut Window,
 8035    cx: &mut App,
 8036) {
 8037    let destination_is_different = from_pane != to_pane;
 8038    let mut moved_items = 0;
 8039    for (item_ix, item_handle) in from_pane
 8040        .read(cx)
 8041        .items()
 8042        .enumerate()
 8043        .map(|(ix, item)| (ix, item.clone()))
 8044        .collect::<Vec<_>>()
 8045    {
 8046        let ix = item_ix - moved_items;
 8047        if destination_is_different {
 8048            // Close item from previous pane
 8049            from_pane.update(cx, |source, cx| {
 8050                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8051            });
 8052            moved_items += 1;
 8053        }
 8054
 8055        // This automatically removes duplicate items in the pane
 8056        to_pane.update(cx, |destination, cx| {
 8057            destination.add_item(item_handle, true, true, None, window, cx);
 8058            window.focus(&destination.focus_handle(cx))
 8059        });
 8060    }
 8061}
 8062
 8063pub fn move_item(
 8064    source: &Entity<Pane>,
 8065    destination: &Entity<Pane>,
 8066    item_id_to_move: EntityId,
 8067    destination_index: usize,
 8068    activate: bool,
 8069    window: &mut Window,
 8070    cx: &mut App,
 8071) {
 8072    let Some((item_ix, item_handle)) = source
 8073        .read(cx)
 8074        .items()
 8075        .enumerate()
 8076        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8077        .map(|(ix, item)| (ix, item.clone()))
 8078    else {
 8079        // Tab was closed during drag
 8080        return;
 8081    };
 8082
 8083    if source != destination {
 8084        // Close item from previous pane
 8085        source.update(cx, |source, cx| {
 8086            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8087        });
 8088    }
 8089
 8090    // This automatically removes duplicate items in the pane
 8091    destination.update(cx, |destination, cx| {
 8092        destination.add_item_inner(
 8093            item_handle,
 8094            activate,
 8095            activate,
 8096            activate,
 8097            Some(destination_index),
 8098            window,
 8099            cx,
 8100        );
 8101        if activate {
 8102            window.focus(&destination.focus_handle(cx))
 8103        }
 8104    });
 8105}
 8106
 8107pub fn move_active_item(
 8108    source: &Entity<Pane>,
 8109    destination: &Entity<Pane>,
 8110    focus_destination: bool,
 8111    close_if_empty: bool,
 8112    window: &mut Window,
 8113    cx: &mut App,
 8114) {
 8115    if source == destination {
 8116        return;
 8117    }
 8118    let Some(active_item) = source.read(cx).active_item() else {
 8119        return;
 8120    };
 8121    source.update(cx, |source_pane, cx| {
 8122        let item_id = active_item.item_id();
 8123        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8124        destination.update(cx, |target_pane, cx| {
 8125            target_pane.add_item(
 8126                active_item,
 8127                focus_destination,
 8128                focus_destination,
 8129                Some(target_pane.items_len()),
 8130                window,
 8131                cx,
 8132            );
 8133        });
 8134    });
 8135}
 8136
 8137pub fn clone_active_item(
 8138    workspace_id: Option<WorkspaceId>,
 8139    source: &Entity<Pane>,
 8140    destination: &Entity<Pane>,
 8141    focus_destination: bool,
 8142    window: &mut Window,
 8143    cx: &mut App,
 8144) {
 8145    if source == destination {
 8146        return;
 8147    }
 8148    let Some(active_item) = source.read(cx).active_item() else {
 8149        return;
 8150    };
 8151    destination.update(cx, |target_pane, cx| {
 8152        let Some(clone) = active_item.clone_on_split(workspace_id, window, cx) else {
 8153            return;
 8154        };
 8155        target_pane.add_item(
 8156            clone,
 8157            focus_destination,
 8158            focus_destination,
 8159            Some(target_pane.items_len()),
 8160            window,
 8161            cx,
 8162        );
 8163    });
 8164}
 8165
 8166#[derive(Debug)]
 8167pub struct WorkspacePosition {
 8168    pub window_bounds: Option<WindowBounds>,
 8169    pub display: Option<Uuid>,
 8170    pub centered_layout: bool,
 8171}
 8172
 8173pub fn remote_workspace_position_from_db(
 8174    connection_options: RemoteConnectionOptions,
 8175    paths_to_open: &[PathBuf],
 8176    cx: &App,
 8177) -> Task<Result<WorkspacePosition>> {
 8178    let paths = paths_to_open.to_vec();
 8179
 8180    cx.background_spawn(async move {
 8181        let remote_connection_id = persistence::DB
 8182            .get_or_create_remote_connection(connection_options)
 8183            .await
 8184            .context("fetching serialized ssh project")?;
 8185        let serialized_workspace =
 8186            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8187
 8188        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8189            (Some(WindowBounds::Windowed(bounds)), None)
 8190        } else {
 8191            let restorable_bounds = serialized_workspace
 8192                .as_ref()
 8193                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8194                .or_else(|| {
 8195                    let (display, window_bounds) = DB.last_window().log_err()?;
 8196                    Some((display?, window_bounds?))
 8197                });
 8198
 8199            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8200                (Some(serialized_status.0), Some(serialized_display))
 8201            } else {
 8202                (None, None)
 8203            }
 8204        };
 8205
 8206        let centered_layout = serialized_workspace
 8207            .as_ref()
 8208            .map(|w| w.centered_layout)
 8209            .unwrap_or(false);
 8210
 8211        Ok(WorkspacePosition {
 8212            window_bounds,
 8213            display,
 8214            centered_layout,
 8215        })
 8216    })
 8217}
 8218
 8219pub fn with_active_or_new_workspace(
 8220    cx: &mut App,
 8221    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8222) {
 8223    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8224        Some(workspace) => {
 8225            cx.defer(move |cx| {
 8226                workspace
 8227                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8228                    .log_err();
 8229            });
 8230        }
 8231        None => {
 8232            let app_state = AppState::global(cx);
 8233            if let Some(app_state) = app_state.upgrade() {
 8234                open_new(
 8235                    OpenOptions::default(),
 8236                    app_state,
 8237                    cx,
 8238                    move |workspace, window, cx| f(workspace, window, cx),
 8239                )
 8240                .detach_and_log_err(cx);
 8241            }
 8242        }
 8243    }
 8244}
 8245
 8246#[cfg(test)]
 8247mod tests {
 8248    use std::{cell::RefCell, rc::Rc};
 8249
 8250    use super::*;
 8251    use crate::{
 8252        dock::{PanelEvent, test::TestPanel},
 8253        item::{
 8254            ItemBufferKind, ItemEvent,
 8255            test::{TestItem, TestProjectItem},
 8256        },
 8257    };
 8258    use fs::FakeFs;
 8259    use gpui::{
 8260        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8261        UpdateGlobal, VisualTestContext, px,
 8262    };
 8263    use project::{Project, ProjectEntryId};
 8264    use serde_json::json;
 8265    use settings::SettingsStore;
 8266    use util::rel_path::rel_path;
 8267
 8268    #[gpui::test]
 8269    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8270        init_test(cx);
 8271
 8272        let fs = FakeFs::new(cx.executor());
 8273        let project = Project::test(fs, [], cx).await;
 8274        let (workspace, cx) =
 8275            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8276
 8277        // Adding an item with no ambiguity renders the tab without detail.
 8278        let item1 = cx.new(|cx| {
 8279            let mut item = TestItem::new(cx);
 8280            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8281            item
 8282        });
 8283        workspace.update_in(cx, |workspace, window, cx| {
 8284            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8285        });
 8286        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8287
 8288        // Adding an item that creates ambiguity increases the level of detail on
 8289        // both tabs.
 8290        let item2 = cx.new_window_entity(|_window, cx| {
 8291            let mut item = TestItem::new(cx);
 8292            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8293            item
 8294        });
 8295        workspace.update_in(cx, |workspace, window, cx| {
 8296            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8297        });
 8298        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8299        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8300
 8301        // Adding an item that creates ambiguity increases the level of detail only
 8302        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8303        // we stop at the highest detail available.
 8304        let item3 = cx.new(|cx| {
 8305            let mut item = TestItem::new(cx);
 8306            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8307            item
 8308        });
 8309        workspace.update_in(cx, |workspace, window, cx| {
 8310            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8311        });
 8312        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8313        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8314        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8315    }
 8316
 8317    #[gpui::test]
 8318    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8319        init_test(cx);
 8320
 8321        let fs = FakeFs::new(cx.executor());
 8322        fs.insert_tree(
 8323            "/root1",
 8324            json!({
 8325                "one.txt": "",
 8326                "two.txt": "",
 8327            }),
 8328        )
 8329        .await;
 8330        fs.insert_tree(
 8331            "/root2",
 8332            json!({
 8333                "three.txt": "",
 8334            }),
 8335        )
 8336        .await;
 8337
 8338        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8339        let (workspace, cx) =
 8340            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8341        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8342        let worktree_id = project.update(cx, |project, cx| {
 8343            project.worktrees(cx).next().unwrap().read(cx).id()
 8344        });
 8345
 8346        let item1 = cx.new(|cx| {
 8347            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8348        });
 8349        let item2 = cx.new(|cx| {
 8350            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8351        });
 8352
 8353        // Add an item to an empty pane
 8354        workspace.update_in(cx, |workspace, window, cx| {
 8355            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8356        });
 8357        project.update(cx, |project, cx| {
 8358            assert_eq!(
 8359                project.active_entry(),
 8360                project
 8361                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8362                    .map(|e| e.id)
 8363            );
 8364        });
 8365        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8366
 8367        // Add a second item to a non-empty pane
 8368        workspace.update_in(cx, |workspace, window, cx| {
 8369            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8370        });
 8371        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8372        project.update(cx, |project, cx| {
 8373            assert_eq!(
 8374                project.active_entry(),
 8375                project
 8376                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 8377                    .map(|e| e.id)
 8378            );
 8379        });
 8380
 8381        // Close the active item
 8382        pane.update_in(cx, |pane, window, cx| {
 8383            pane.close_active_item(&Default::default(), window, cx)
 8384        })
 8385        .await
 8386        .unwrap();
 8387        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8388        project.update(cx, |project, cx| {
 8389            assert_eq!(
 8390                project.active_entry(),
 8391                project
 8392                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8393                    .map(|e| e.id)
 8394            );
 8395        });
 8396
 8397        // Add a project folder
 8398        project
 8399            .update(cx, |project, cx| {
 8400                project.find_or_create_worktree("root2", true, cx)
 8401            })
 8402            .await
 8403            .unwrap();
 8404        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8405
 8406        // Remove a project folder
 8407        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8408        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8409    }
 8410
 8411    #[gpui::test]
 8412    async fn test_close_window(cx: &mut TestAppContext) {
 8413        init_test(cx);
 8414
 8415        let fs = FakeFs::new(cx.executor());
 8416        fs.insert_tree("/root", json!({ "one": "" })).await;
 8417
 8418        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8419        let (workspace, cx) =
 8420            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8421
 8422        // When there are no dirty items, there's nothing to do.
 8423        let item1 = cx.new(TestItem::new);
 8424        workspace.update_in(cx, |w, window, cx| {
 8425            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8426        });
 8427        let task = workspace.update_in(cx, |w, window, cx| {
 8428            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8429        });
 8430        assert!(task.await.unwrap());
 8431
 8432        // When there are dirty untitled items, prompt to save each one. If the user
 8433        // cancels any prompt, then abort.
 8434        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8435        let item3 = cx.new(|cx| {
 8436            TestItem::new(cx)
 8437                .with_dirty(true)
 8438                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8439        });
 8440        workspace.update_in(cx, |w, window, cx| {
 8441            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8442            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8443        });
 8444        let task = workspace.update_in(cx, |w, window, cx| {
 8445            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8446        });
 8447        cx.executor().run_until_parked();
 8448        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8449        cx.executor().run_until_parked();
 8450        assert!(!cx.has_pending_prompt());
 8451        assert!(!task.await.unwrap());
 8452    }
 8453
 8454    #[gpui::test]
 8455    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8456        init_test(cx);
 8457
 8458        // Register TestItem as a serializable item
 8459        cx.update(|cx| {
 8460            register_serializable_item::<TestItem>(cx);
 8461        });
 8462
 8463        let fs = FakeFs::new(cx.executor());
 8464        fs.insert_tree("/root", json!({ "one": "" })).await;
 8465
 8466        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8467        let (workspace, cx) =
 8468            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8469
 8470        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8471        let item1 = cx.new(|cx| {
 8472            TestItem::new(cx)
 8473                .with_dirty(true)
 8474                .with_serialize(|| Some(Task::ready(Ok(()))))
 8475        });
 8476        let item2 = cx.new(|cx| {
 8477            TestItem::new(cx)
 8478                .with_dirty(true)
 8479                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8480                .with_serialize(|| Some(Task::ready(Ok(()))))
 8481        });
 8482        workspace.update_in(cx, |w, window, cx| {
 8483            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8484            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8485        });
 8486        let task = workspace.update_in(cx, |w, window, cx| {
 8487            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8488        });
 8489        assert!(task.await.unwrap());
 8490    }
 8491
 8492    #[gpui::test]
 8493    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8494        init_test(cx);
 8495
 8496        let fs = FakeFs::new(cx.executor());
 8497
 8498        let project = Project::test(fs, None, cx).await;
 8499        let (workspace, cx) =
 8500            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8501
 8502        let item1 = cx.new(|cx| {
 8503            TestItem::new(cx)
 8504                .with_dirty(true)
 8505                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8506        });
 8507        let item2 = cx.new(|cx| {
 8508            TestItem::new(cx)
 8509                .with_dirty(true)
 8510                .with_conflict(true)
 8511                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8512        });
 8513        let item3 = cx.new(|cx| {
 8514            TestItem::new(cx)
 8515                .with_dirty(true)
 8516                .with_conflict(true)
 8517                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8518        });
 8519        let item4 = cx.new(|cx| {
 8520            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8521                let project_item = TestProjectItem::new_untitled(cx);
 8522                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8523                project_item
 8524            }])
 8525        });
 8526        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8527            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8528            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8529            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8530            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8531            workspace.active_pane().clone()
 8532        });
 8533
 8534        let close_items = pane.update_in(cx, |pane, window, cx| {
 8535            pane.activate_item(1, true, true, window, cx);
 8536            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8537            let item1_id = item1.item_id();
 8538            let item3_id = item3.item_id();
 8539            let item4_id = item4.item_id();
 8540            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8541                [item1_id, item3_id, item4_id].contains(&id)
 8542            })
 8543        });
 8544        cx.executor().run_until_parked();
 8545
 8546        assert!(cx.has_pending_prompt());
 8547        cx.simulate_prompt_answer("Save all");
 8548
 8549        cx.executor().run_until_parked();
 8550
 8551        // Item 1 is saved. There's a prompt to save item 3.
 8552        pane.update(cx, |pane, cx| {
 8553            assert_eq!(item1.read(cx).save_count, 1);
 8554            assert_eq!(item1.read(cx).save_as_count, 0);
 8555            assert_eq!(item1.read(cx).reload_count, 0);
 8556            assert_eq!(pane.items_len(), 3);
 8557            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8558        });
 8559        assert!(cx.has_pending_prompt());
 8560
 8561        // Cancel saving item 3.
 8562        cx.simulate_prompt_answer("Discard");
 8563        cx.executor().run_until_parked();
 8564
 8565        // Item 3 is reloaded. There's a prompt to save item 4.
 8566        pane.update(cx, |pane, cx| {
 8567            assert_eq!(item3.read(cx).save_count, 0);
 8568            assert_eq!(item3.read(cx).save_as_count, 0);
 8569            assert_eq!(item3.read(cx).reload_count, 1);
 8570            assert_eq!(pane.items_len(), 2);
 8571            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8572        });
 8573
 8574        // There's a prompt for a path for item 4.
 8575        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8576        close_items.await.unwrap();
 8577
 8578        // The requested items are closed.
 8579        pane.update(cx, |pane, cx| {
 8580            assert_eq!(item4.read(cx).save_count, 0);
 8581            assert_eq!(item4.read(cx).save_as_count, 1);
 8582            assert_eq!(item4.read(cx).reload_count, 0);
 8583            assert_eq!(pane.items_len(), 1);
 8584            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8585        });
 8586    }
 8587
 8588    #[gpui::test]
 8589    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8590        init_test(cx);
 8591
 8592        let fs = FakeFs::new(cx.executor());
 8593        let project = Project::test(fs, [], cx).await;
 8594        let (workspace, cx) =
 8595            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8596
 8597        // Create several workspace items with single project entries, and two
 8598        // workspace items with multiple project entries.
 8599        let single_entry_items = (0..=4)
 8600            .map(|project_entry_id| {
 8601                cx.new(|cx| {
 8602                    TestItem::new(cx)
 8603                        .with_dirty(true)
 8604                        .with_project_items(&[dirty_project_item(
 8605                            project_entry_id,
 8606                            &format!("{project_entry_id}.txt"),
 8607                            cx,
 8608                        )])
 8609                })
 8610            })
 8611            .collect::<Vec<_>>();
 8612        let item_2_3 = cx.new(|cx| {
 8613            TestItem::new(cx)
 8614                .with_dirty(true)
 8615                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8616                .with_project_items(&[
 8617                    single_entry_items[2].read(cx).project_items[0].clone(),
 8618                    single_entry_items[3].read(cx).project_items[0].clone(),
 8619                ])
 8620        });
 8621        let item_3_4 = cx.new(|cx| {
 8622            TestItem::new(cx)
 8623                .with_dirty(true)
 8624                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8625                .with_project_items(&[
 8626                    single_entry_items[3].read(cx).project_items[0].clone(),
 8627                    single_entry_items[4].read(cx).project_items[0].clone(),
 8628                ])
 8629        });
 8630
 8631        // Create two panes that contain the following project entries:
 8632        //   left pane:
 8633        //     multi-entry items:   (2, 3)
 8634        //     single-entry items:  0, 2, 3, 4
 8635        //   right pane:
 8636        //     single-entry items:  4, 1
 8637        //     multi-entry items:   (3, 4)
 8638        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8639            let left_pane = workspace.active_pane().clone();
 8640            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8641            workspace.add_item_to_active_pane(
 8642                single_entry_items[0].boxed_clone(),
 8643                None,
 8644                true,
 8645                window,
 8646                cx,
 8647            );
 8648            workspace.add_item_to_active_pane(
 8649                single_entry_items[2].boxed_clone(),
 8650                None,
 8651                true,
 8652                window,
 8653                cx,
 8654            );
 8655            workspace.add_item_to_active_pane(
 8656                single_entry_items[3].boxed_clone(),
 8657                None,
 8658                true,
 8659                window,
 8660                cx,
 8661            );
 8662            workspace.add_item_to_active_pane(
 8663                single_entry_items[4].boxed_clone(),
 8664                None,
 8665                true,
 8666                window,
 8667                cx,
 8668            );
 8669
 8670            let right_pane = workspace
 8671                .split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx)
 8672                .unwrap();
 8673
 8674            right_pane.update(cx, |pane, cx| {
 8675                pane.add_item(
 8676                    single_entry_items[1].boxed_clone(),
 8677                    true,
 8678                    true,
 8679                    None,
 8680                    window,
 8681                    cx,
 8682                );
 8683                pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8684            });
 8685
 8686            (left_pane, right_pane)
 8687        });
 8688
 8689        cx.focus(&right_pane);
 8690
 8691        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8692            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8693                .unwrap()
 8694        });
 8695        cx.executor().run_until_parked();
 8696
 8697        let msg = cx.pending_prompt().unwrap().0;
 8698        assert!(msg.contains("1.txt"));
 8699        assert!(!msg.contains("2.txt"));
 8700        assert!(!msg.contains("3.txt"));
 8701        assert!(!msg.contains("4.txt"));
 8702
 8703        cx.simulate_prompt_answer("Cancel");
 8704        close.await;
 8705
 8706        left_pane
 8707            .update_in(cx, |left_pane, window, cx| {
 8708                left_pane.close_item_by_id(
 8709                    single_entry_items[3].entity_id(),
 8710                    SaveIntent::Skip,
 8711                    window,
 8712                    cx,
 8713                )
 8714            })
 8715            .await
 8716            .unwrap();
 8717
 8718        close = right_pane.update_in(cx, |pane, window, cx| {
 8719            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8720                .unwrap()
 8721        });
 8722        cx.executor().run_until_parked();
 8723
 8724        let details = cx.pending_prompt().unwrap().1;
 8725        assert!(details.contains("1.txt"));
 8726        assert!(!details.contains("2.txt"));
 8727        assert!(details.contains("3.txt"));
 8728        // ideally this assertion could be made, but today we can only
 8729        // save whole items not project items, so the orphaned item 3 causes
 8730        // 4 to be saved too.
 8731        // assert!(!details.contains("4.txt"));
 8732
 8733        cx.simulate_prompt_answer("Save all");
 8734
 8735        cx.executor().run_until_parked();
 8736        close.await;
 8737        right_pane.read_with(cx, |pane, _| {
 8738            assert_eq!(pane.items_len(), 0);
 8739        });
 8740    }
 8741
 8742    #[gpui::test]
 8743    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8744        init_test(cx);
 8745
 8746        let fs = FakeFs::new(cx.executor());
 8747        let project = Project::test(fs, [], cx).await;
 8748        let (workspace, cx) =
 8749            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8750        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8751
 8752        let item = cx.new(|cx| {
 8753            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8754        });
 8755        let item_id = item.entity_id();
 8756        workspace.update_in(cx, |workspace, window, cx| {
 8757            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8758        });
 8759
 8760        // Autosave on window change.
 8761        item.update(cx, |item, cx| {
 8762            SettingsStore::update_global(cx, |settings, cx| {
 8763                settings.update_user_settings(cx, |settings| {
 8764                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 8765                })
 8766            });
 8767            item.is_dirty = true;
 8768        });
 8769
 8770        // Deactivating the window saves the file.
 8771        cx.deactivate_window();
 8772        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8773
 8774        // Re-activating the window doesn't save the file.
 8775        cx.update(|window, _| window.activate_window());
 8776        cx.executor().run_until_parked();
 8777        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8778
 8779        // Autosave on focus change.
 8780        item.update_in(cx, |item, window, cx| {
 8781            cx.focus_self(window);
 8782            SettingsStore::update_global(cx, |settings, cx| {
 8783                settings.update_user_settings(cx, |settings| {
 8784                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 8785                })
 8786            });
 8787            item.is_dirty = true;
 8788        });
 8789        // Blurring the item saves the file.
 8790        item.update_in(cx, |_, window, _| window.blur());
 8791        cx.executor().run_until_parked();
 8792        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8793
 8794        // Deactivating the window still saves the file.
 8795        item.update_in(cx, |item, window, cx| {
 8796            cx.focus_self(window);
 8797            item.is_dirty = true;
 8798        });
 8799        cx.deactivate_window();
 8800        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8801
 8802        // Autosave after delay.
 8803        item.update(cx, |item, cx| {
 8804            SettingsStore::update_global(cx, |settings, cx| {
 8805                settings.update_user_settings(cx, |settings| {
 8806                    settings.workspace.autosave =
 8807                        Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
 8808                })
 8809            });
 8810            item.is_dirty = true;
 8811            cx.emit(ItemEvent::Edit);
 8812        });
 8813
 8814        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 8815        cx.executor().advance_clock(Duration::from_millis(250));
 8816        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 8817
 8818        // After delay expires, the file is saved.
 8819        cx.executor().advance_clock(Duration::from_millis(250));
 8820        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8821
 8822        // Autosave after delay, should save earlier than delay if tab is closed
 8823        item.update(cx, |item, cx| {
 8824            item.is_dirty = true;
 8825            cx.emit(ItemEvent::Edit);
 8826        });
 8827        cx.executor().advance_clock(Duration::from_millis(250));
 8828        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8829
 8830        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 8831        pane.update_in(cx, |pane, window, cx| {
 8832            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8833        })
 8834        .await
 8835        .unwrap();
 8836        assert!(!cx.has_pending_prompt());
 8837        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8838
 8839        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8840        workspace.update_in(cx, |workspace, window, cx| {
 8841            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8842        });
 8843        item.update_in(cx, |item, _window, cx| {
 8844            item.is_dirty = true;
 8845            for project_item in &mut item.project_items {
 8846                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8847            }
 8848        });
 8849        cx.run_until_parked();
 8850        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8851
 8852        // Autosave on focus change, ensuring closing the tab counts as such.
 8853        item.update(cx, |item, cx| {
 8854            SettingsStore::update_global(cx, |settings, cx| {
 8855                settings.update_user_settings(cx, |settings| {
 8856                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 8857                })
 8858            });
 8859            item.is_dirty = true;
 8860            for project_item in &mut item.project_items {
 8861                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8862            }
 8863        });
 8864
 8865        pane.update_in(cx, |pane, window, cx| {
 8866            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8867        })
 8868        .await
 8869        .unwrap();
 8870        assert!(!cx.has_pending_prompt());
 8871        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 8872
 8873        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8874        workspace.update_in(cx, |workspace, window, cx| {
 8875            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8876        });
 8877        item.update_in(cx, |item, window, cx| {
 8878            item.project_items[0].update(cx, |item, _| {
 8879                item.entry_id = None;
 8880            });
 8881            item.is_dirty = true;
 8882            window.blur();
 8883        });
 8884        cx.run_until_parked();
 8885        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 8886
 8887        // Ensure autosave is prevented for deleted files also when closing the buffer.
 8888        let _close_items = pane.update_in(cx, |pane, window, cx| {
 8889            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8890        });
 8891        cx.run_until_parked();
 8892        assert!(cx.has_pending_prompt());
 8893        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 8894    }
 8895
 8896    #[gpui::test]
 8897    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 8898        init_test(cx);
 8899
 8900        let fs = FakeFs::new(cx.executor());
 8901
 8902        let project = Project::test(fs, [], cx).await;
 8903        let (workspace, cx) =
 8904            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8905
 8906        let item = cx.new(|cx| {
 8907            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8908        });
 8909        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8910        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 8911        let toolbar_notify_count = Rc::new(RefCell::new(0));
 8912
 8913        workspace.update_in(cx, |workspace, window, cx| {
 8914            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8915            let toolbar_notification_count = toolbar_notify_count.clone();
 8916            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 8917                *toolbar_notification_count.borrow_mut() += 1
 8918            })
 8919            .detach();
 8920        });
 8921
 8922        pane.read_with(cx, |pane, _| {
 8923            assert!(!pane.can_navigate_backward());
 8924            assert!(!pane.can_navigate_forward());
 8925        });
 8926
 8927        item.update_in(cx, |item, _, cx| {
 8928            item.set_state("one".to_string(), cx);
 8929        });
 8930
 8931        // Toolbar must be notified to re-render the navigation buttons
 8932        assert_eq!(*toolbar_notify_count.borrow(), 1);
 8933
 8934        pane.read_with(cx, |pane, _| {
 8935            assert!(pane.can_navigate_backward());
 8936            assert!(!pane.can_navigate_forward());
 8937        });
 8938
 8939        workspace
 8940            .update_in(cx, |workspace, window, cx| {
 8941                workspace.go_back(pane.downgrade(), window, cx)
 8942            })
 8943            .await
 8944            .unwrap();
 8945
 8946        assert_eq!(*toolbar_notify_count.borrow(), 2);
 8947        pane.read_with(cx, |pane, _| {
 8948            assert!(!pane.can_navigate_backward());
 8949            assert!(pane.can_navigate_forward());
 8950        });
 8951    }
 8952
 8953    #[gpui::test]
 8954    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 8955        init_test(cx);
 8956        let fs = FakeFs::new(cx.executor());
 8957
 8958        let project = Project::test(fs, [], cx).await;
 8959        let (workspace, cx) =
 8960            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8961
 8962        let panel = workspace.update_in(cx, |workspace, window, cx| {
 8963            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8964            workspace.add_panel(panel.clone(), window, cx);
 8965
 8966            workspace
 8967                .right_dock()
 8968                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 8969
 8970            panel
 8971        });
 8972
 8973        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8974        pane.update_in(cx, |pane, window, cx| {
 8975            let item = cx.new(TestItem::new);
 8976            pane.add_item(Box::new(item), true, true, None, window, cx);
 8977        });
 8978
 8979        // Transfer focus from center to panel
 8980        workspace.update_in(cx, |workspace, window, cx| {
 8981            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8982        });
 8983
 8984        workspace.update_in(cx, |workspace, window, cx| {
 8985            assert!(workspace.right_dock().read(cx).is_open());
 8986            assert!(!panel.is_zoomed(window, cx));
 8987            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8988        });
 8989
 8990        // Transfer focus from panel to center
 8991        workspace.update_in(cx, |workspace, window, cx| {
 8992            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8993        });
 8994
 8995        workspace.update_in(cx, |workspace, window, cx| {
 8996            assert!(workspace.right_dock().read(cx).is_open());
 8997            assert!(!panel.is_zoomed(window, cx));
 8998            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8999        });
 9000
 9001        // Close the dock
 9002        workspace.update_in(cx, |workspace, window, cx| {
 9003            workspace.toggle_dock(DockPosition::Right, window, cx);
 9004        });
 9005
 9006        workspace.update_in(cx, |workspace, window, cx| {
 9007            assert!(!workspace.right_dock().read(cx).is_open());
 9008            assert!(!panel.is_zoomed(window, cx));
 9009            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9010        });
 9011
 9012        // Open the dock
 9013        workspace.update_in(cx, |workspace, window, cx| {
 9014            workspace.toggle_dock(DockPosition::Right, window, cx);
 9015        });
 9016
 9017        workspace.update_in(cx, |workspace, window, cx| {
 9018            assert!(workspace.right_dock().read(cx).is_open());
 9019            assert!(!panel.is_zoomed(window, cx));
 9020            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9021        });
 9022
 9023        // Focus and zoom panel
 9024        panel.update_in(cx, |panel, window, cx| {
 9025            cx.focus_self(window);
 9026            panel.set_zoomed(true, window, cx)
 9027        });
 9028
 9029        workspace.update_in(cx, |workspace, window, cx| {
 9030            assert!(workspace.right_dock().read(cx).is_open());
 9031            assert!(panel.is_zoomed(window, cx));
 9032            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9033        });
 9034
 9035        // Transfer focus to the center closes the dock
 9036        workspace.update_in(cx, |workspace, window, cx| {
 9037            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9038        });
 9039
 9040        workspace.update_in(cx, |workspace, window, cx| {
 9041            assert!(!workspace.right_dock().read(cx).is_open());
 9042            assert!(panel.is_zoomed(window, cx));
 9043            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9044        });
 9045
 9046        // Transferring focus back to the panel keeps it zoomed
 9047        workspace.update_in(cx, |workspace, window, cx| {
 9048            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9049        });
 9050
 9051        workspace.update_in(cx, |workspace, window, cx| {
 9052            assert!(workspace.right_dock().read(cx).is_open());
 9053            assert!(panel.is_zoomed(window, cx));
 9054            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9055        });
 9056
 9057        // Close the dock while it is zoomed
 9058        workspace.update_in(cx, |workspace, window, cx| {
 9059            workspace.toggle_dock(DockPosition::Right, window, cx)
 9060        });
 9061
 9062        workspace.update_in(cx, |workspace, window, cx| {
 9063            assert!(!workspace.right_dock().read(cx).is_open());
 9064            assert!(panel.is_zoomed(window, cx));
 9065            assert!(workspace.zoomed.is_none());
 9066            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9067        });
 9068
 9069        // Opening the dock, when it's zoomed, retains focus
 9070        workspace.update_in(cx, |workspace, window, cx| {
 9071            workspace.toggle_dock(DockPosition::Right, window, cx)
 9072        });
 9073
 9074        workspace.update_in(cx, |workspace, window, cx| {
 9075            assert!(workspace.right_dock().read(cx).is_open());
 9076            assert!(panel.is_zoomed(window, cx));
 9077            assert!(workspace.zoomed.is_some());
 9078            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9079        });
 9080
 9081        // Unzoom and close the panel, zoom the active pane.
 9082        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9083        workspace.update_in(cx, |workspace, window, cx| {
 9084            workspace.toggle_dock(DockPosition::Right, window, cx)
 9085        });
 9086        pane.update_in(cx, |pane, window, cx| {
 9087            pane.toggle_zoom(&Default::default(), window, cx)
 9088        });
 9089
 9090        // Opening a dock unzooms the pane.
 9091        workspace.update_in(cx, |workspace, window, cx| {
 9092            workspace.toggle_dock(DockPosition::Right, window, cx)
 9093        });
 9094        workspace.update_in(cx, |workspace, window, cx| {
 9095            let pane = pane.read(cx);
 9096            assert!(!pane.is_zoomed());
 9097            assert!(!pane.focus_handle(cx).is_focused(window));
 9098            assert!(workspace.right_dock().read(cx).is_open());
 9099            assert!(workspace.zoomed.is_none());
 9100        });
 9101    }
 9102
 9103    #[gpui::test]
 9104    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 9105        init_test(cx);
 9106
 9107        let fs = FakeFs::new(cx.executor());
 9108
 9109        let project = Project::test(fs, None, cx).await;
 9110        let (workspace, cx) =
 9111            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9112
 9113        // Let's arrange the panes like this:
 9114        //
 9115        // +-----------------------+
 9116        // |         top           |
 9117        // +------+--------+-------+
 9118        // | left | center | right |
 9119        // +------+--------+-------+
 9120        // |        bottom         |
 9121        // +-----------------------+
 9122
 9123        let top_item = cx.new(|cx| {
 9124            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9125        });
 9126        let bottom_item = cx.new(|cx| {
 9127            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9128        });
 9129        let left_item = cx.new(|cx| {
 9130            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9131        });
 9132        let right_item = cx.new(|cx| {
 9133            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9134        });
 9135        let center_item = cx.new(|cx| {
 9136            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9137        });
 9138
 9139        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9140            let top_pane_id = workspace.active_pane().entity_id();
 9141            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9142            workspace.split_pane(
 9143                workspace.active_pane().clone(),
 9144                SplitDirection::Down,
 9145                window,
 9146                cx,
 9147            );
 9148            top_pane_id
 9149        });
 9150        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9151            let bottom_pane_id = workspace.active_pane().entity_id();
 9152            workspace.add_item_to_active_pane(
 9153                Box::new(bottom_item.clone()),
 9154                None,
 9155                false,
 9156                window,
 9157                cx,
 9158            );
 9159            workspace.split_pane(
 9160                workspace.active_pane().clone(),
 9161                SplitDirection::Up,
 9162                window,
 9163                cx,
 9164            );
 9165            bottom_pane_id
 9166        });
 9167        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9168            let left_pane_id = workspace.active_pane().entity_id();
 9169            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9170            workspace.split_pane(
 9171                workspace.active_pane().clone(),
 9172                SplitDirection::Right,
 9173                window,
 9174                cx,
 9175            );
 9176            left_pane_id
 9177        });
 9178        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9179            let right_pane_id = workspace.active_pane().entity_id();
 9180            workspace.add_item_to_active_pane(
 9181                Box::new(right_item.clone()),
 9182                None,
 9183                false,
 9184                window,
 9185                cx,
 9186            );
 9187            workspace.split_pane(
 9188                workspace.active_pane().clone(),
 9189                SplitDirection::Left,
 9190                window,
 9191                cx,
 9192            );
 9193            right_pane_id
 9194        });
 9195        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9196            let center_pane_id = workspace.active_pane().entity_id();
 9197            workspace.add_item_to_active_pane(
 9198                Box::new(center_item.clone()),
 9199                None,
 9200                false,
 9201                window,
 9202                cx,
 9203            );
 9204            center_pane_id
 9205        });
 9206        cx.executor().run_until_parked();
 9207
 9208        workspace.update_in(cx, |workspace, window, cx| {
 9209            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9210
 9211            // Join into next from center pane into right
 9212            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9213        });
 9214
 9215        workspace.update_in(cx, |workspace, window, cx| {
 9216            let active_pane = workspace.active_pane();
 9217            assert_eq!(right_pane_id, active_pane.entity_id());
 9218            assert_eq!(2, active_pane.read(cx).items_len());
 9219            let item_ids_in_pane =
 9220                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9221            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9222            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9223
 9224            // Join into next from right pane into bottom
 9225            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9226        });
 9227
 9228        workspace.update_in(cx, |workspace, window, cx| {
 9229            let active_pane = workspace.active_pane();
 9230            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9231            assert_eq!(3, active_pane.read(cx).items_len());
 9232            let item_ids_in_pane =
 9233                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9234            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9235            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9236            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9237
 9238            // Join into next from bottom pane into left
 9239            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9240        });
 9241
 9242        workspace.update_in(cx, |workspace, window, cx| {
 9243            let active_pane = workspace.active_pane();
 9244            assert_eq!(left_pane_id, active_pane.entity_id());
 9245            assert_eq!(4, active_pane.read(cx).items_len());
 9246            let item_ids_in_pane =
 9247                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9248            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9249            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9250            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9251            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9252
 9253            // Join into next from left pane into top
 9254            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9255        });
 9256
 9257        workspace.update_in(cx, |workspace, window, cx| {
 9258            let active_pane = workspace.active_pane();
 9259            assert_eq!(top_pane_id, active_pane.entity_id());
 9260            assert_eq!(5, active_pane.read(cx).items_len());
 9261            let item_ids_in_pane =
 9262                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9263            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9264            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9265            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9266            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9267            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9268
 9269            // Single pane left: no-op
 9270            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9271        });
 9272
 9273        workspace.update(cx, |workspace, _cx| {
 9274            let active_pane = workspace.active_pane();
 9275            assert_eq!(top_pane_id, active_pane.entity_id());
 9276        });
 9277    }
 9278
 9279    fn add_an_item_to_active_pane(
 9280        cx: &mut VisualTestContext,
 9281        workspace: &Entity<Workspace>,
 9282        item_id: u64,
 9283    ) -> Entity<TestItem> {
 9284        let item = cx.new(|cx| {
 9285            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9286                item_id,
 9287                "item{item_id}.txt",
 9288                cx,
 9289            )])
 9290        });
 9291        workspace.update_in(cx, |workspace, window, cx| {
 9292            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9293        });
 9294        item
 9295    }
 9296
 9297    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9298        workspace.update_in(cx, |workspace, window, cx| {
 9299            workspace.split_pane(
 9300                workspace.active_pane().clone(),
 9301                SplitDirection::Right,
 9302                window,
 9303                cx,
 9304            )
 9305        })
 9306    }
 9307
 9308    #[gpui::test]
 9309    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9310        init_test(cx);
 9311        let fs = FakeFs::new(cx.executor());
 9312        let project = Project::test(fs, None, cx).await;
 9313        let (workspace, cx) =
 9314            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9315
 9316        add_an_item_to_active_pane(cx, &workspace, 1);
 9317        split_pane(cx, &workspace);
 9318        add_an_item_to_active_pane(cx, &workspace, 2);
 9319        split_pane(cx, &workspace); // empty pane
 9320        split_pane(cx, &workspace);
 9321        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9322
 9323        cx.executor().run_until_parked();
 9324
 9325        workspace.update(cx, |workspace, cx| {
 9326            let num_panes = workspace.panes().len();
 9327            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9328            let active_item = workspace
 9329                .active_pane()
 9330                .read(cx)
 9331                .active_item()
 9332                .expect("item is in focus");
 9333
 9334            assert_eq!(num_panes, 4);
 9335            assert_eq!(num_items_in_current_pane, 1);
 9336            assert_eq!(active_item.item_id(), last_item.item_id());
 9337        });
 9338
 9339        workspace.update_in(cx, |workspace, window, cx| {
 9340            workspace.join_all_panes(window, cx);
 9341        });
 9342
 9343        workspace.update(cx, |workspace, cx| {
 9344            let num_panes = workspace.panes().len();
 9345            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9346            let active_item = workspace
 9347                .active_pane()
 9348                .read(cx)
 9349                .active_item()
 9350                .expect("item is in focus");
 9351
 9352            assert_eq!(num_panes, 1);
 9353            assert_eq!(num_items_in_current_pane, 3);
 9354            assert_eq!(active_item.item_id(), last_item.item_id());
 9355        });
 9356    }
 9357    struct TestModal(FocusHandle);
 9358
 9359    impl TestModal {
 9360        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9361            Self(cx.focus_handle())
 9362        }
 9363    }
 9364
 9365    impl EventEmitter<DismissEvent> for TestModal {}
 9366
 9367    impl Focusable for TestModal {
 9368        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9369            self.0.clone()
 9370        }
 9371    }
 9372
 9373    impl ModalView for TestModal {}
 9374
 9375    impl Render for TestModal {
 9376        fn render(
 9377            &mut self,
 9378            _window: &mut Window,
 9379            _cx: &mut Context<TestModal>,
 9380        ) -> impl IntoElement {
 9381            div().track_focus(&self.0)
 9382        }
 9383    }
 9384
 9385    #[gpui::test]
 9386    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9387        init_test(cx);
 9388        let fs = FakeFs::new(cx.executor());
 9389
 9390        let project = Project::test(fs, [], cx).await;
 9391        let (workspace, cx) =
 9392            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9393
 9394        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9395            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9396            workspace.add_panel(panel_1.clone(), window, cx);
 9397            workspace.toggle_dock(DockPosition::Left, window, cx);
 9398            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9399            workspace.add_panel(panel_2.clone(), window, cx);
 9400            workspace.toggle_dock(DockPosition::Right, window, cx);
 9401
 9402            let left_dock = workspace.left_dock();
 9403            assert_eq!(
 9404                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9405                panel_1.panel_id()
 9406            );
 9407            assert_eq!(
 9408                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9409                panel_1.size(window, cx)
 9410            );
 9411
 9412            left_dock.update(cx, |left_dock, cx| {
 9413                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9414            });
 9415            assert_eq!(
 9416                workspace
 9417                    .right_dock()
 9418                    .read(cx)
 9419                    .visible_panel()
 9420                    .unwrap()
 9421                    .panel_id(),
 9422                panel_2.panel_id(),
 9423            );
 9424
 9425            (panel_1, panel_2)
 9426        });
 9427
 9428        // Move panel_1 to the right
 9429        panel_1.update_in(cx, |panel_1, window, cx| {
 9430            panel_1.set_position(DockPosition::Right, window, cx)
 9431        });
 9432
 9433        workspace.update_in(cx, |workspace, window, cx| {
 9434            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9435            // Since it was the only panel on the left, the left dock should now be closed.
 9436            assert!(!workspace.left_dock().read(cx).is_open());
 9437            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9438            let right_dock = workspace.right_dock();
 9439            assert_eq!(
 9440                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9441                panel_1.panel_id()
 9442            );
 9443            assert_eq!(
 9444                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9445                px(1337.)
 9446            );
 9447
 9448            // Now we move panel_2 to the left
 9449            panel_2.set_position(DockPosition::Left, window, cx);
 9450        });
 9451
 9452        workspace.update(cx, |workspace, cx| {
 9453            // Since panel_2 was not visible on the right, we don't open the left dock.
 9454            assert!(!workspace.left_dock().read(cx).is_open());
 9455            // And the right dock is unaffected in its displaying of panel_1
 9456            assert!(workspace.right_dock().read(cx).is_open());
 9457            assert_eq!(
 9458                workspace
 9459                    .right_dock()
 9460                    .read(cx)
 9461                    .visible_panel()
 9462                    .unwrap()
 9463                    .panel_id(),
 9464                panel_1.panel_id(),
 9465            );
 9466        });
 9467
 9468        // Move panel_1 back to the left
 9469        panel_1.update_in(cx, |panel_1, window, cx| {
 9470            panel_1.set_position(DockPosition::Left, window, cx)
 9471        });
 9472
 9473        workspace.update_in(cx, |workspace, window, cx| {
 9474            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9475            let left_dock = workspace.left_dock();
 9476            assert!(left_dock.read(cx).is_open());
 9477            assert_eq!(
 9478                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9479                panel_1.panel_id()
 9480            );
 9481            assert_eq!(
 9482                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9483                px(1337.)
 9484            );
 9485            // And the right dock should be closed as it no longer has any panels.
 9486            assert!(!workspace.right_dock().read(cx).is_open());
 9487
 9488            // Now we move panel_1 to the bottom
 9489            panel_1.set_position(DockPosition::Bottom, window, cx);
 9490        });
 9491
 9492        workspace.update_in(cx, |workspace, window, cx| {
 9493            // Since panel_1 was visible on the left, we close the left dock.
 9494            assert!(!workspace.left_dock().read(cx).is_open());
 9495            // The bottom dock is sized based on the panel's default size,
 9496            // since the panel orientation changed from vertical to horizontal.
 9497            let bottom_dock = workspace.bottom_dock();
 9498            assert_eq!(
 9499                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9500                panel_1.size(window, cx),
 9501            );
 9502            // Close bottom dock and move panel_1 back to the left.
 9503            bottom_dock.update(cx, |bottom_dock, cx| {
 9504                bottom_dock.set_open(false, window, cx)
 9505            });
 9506            panel_1.set_position(DockPosition::Left, window, cx);
 9507        });
 9508
 9509        // Emit activated event on panel 1
 9510        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9511
 9512        // Now the left dock is open and panel_1 is active and focused.
 9513        workspace.update_in(cx, |workspace, window, cx| {
 9514            let left_dock = workspace.left_dock();
 9515            assert!(left_dock.read(cx).is_open());
 9516            assert_eq!(
 9517                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9518                panel_1.panel_id(),
 9519            );
 9520            assert!(panel_1.focus_handle(cx).is_focused(window));
 9521        });
 9522
 9523        // Emit closed event on panel 2, which is not active
 9524        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9525
 9526        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9527        workspace.update(cx, |workspace, cx| {
 9528            let left_dock = workspace.left_dock();
 9529            assert!(left_dock.read(cx).is_open());
 9530            assert_eq!(
 9531                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9532                panel_1.panel_id(),
 9533            );
 9534        });
 9535
 9536        // Emitting a ZoomIn event shows the panel as zoomed.
 9537        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9538        workspace.read_with(cx, |workspace, _| {
 9539            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9540            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9541        });
 9542
 9543        // Move panel to another dock while it is zoomed
 9544        panel_1.update_in(cx, |panel, window, cx| {
 9545            panel.set_position(DockPosition::Right, window, cx)
 9546        });
 9547        workspace.read_with(cx, |workspace, _| {
 9548            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9549
 9550            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9551        });
 9552
 9553        // This is a helper for getting a:
 9554        // - valid focus on an element,
 9555        // - that isn't a part of the panes and panels system of the Workspace,
 9556        // - and doesn't trigger the 'on_focus_lost' API.
 9557        let focus_other_view = {
 9558            let workspace = workspace.clone();
 9559            move |cx: &mut VisualTestContext| {
 9560                workspace.update_in(cx, |workspace, window, cx| {
 9561                    if workspace.active_modal::<TestModal>(cx).is_some() {
 9562                        workspace.toggle_modal(window, cx, TestModal::new);
 9563                        workspace.toggle_modal(window, cx, TestModal::new);
 9564                    } else {
 9565                        workspace.toggle_modal(window, cx, TestModal::new);
 9566                    }
 9567                })
 9568            }
 9569        };
 9570
 9571        // If focus is transferred to another view that's not a panel or another pane, we still show
 9572        // the panel as zoomed.
 9573        focus_other_view(cx);
 9574        workspace.read_with(cx, |workspace, _| {
 9575            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9576            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9577        });
 9578
 9579        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 9580        workspace.update_in(cx, |_workspace, window, cx| {
 9581            cx.focus_self(window);
 9582        });
 9583        workspace.read_with(cx, |workspace, _| {
 9584            assert_eq!(workspace.zoomed, None);
 9585            assert_eq!(workspace.zoomed_position, None);
 9586        });
 9587
 9588        // If focus is transferred again to another view that's not a panel or a pane, we won't
 9589        // show the panel as zoomed because it wasn't zoomed before.
 9590        focus_other_view(cx);
 9591        workspace.read_with(cx, |workspace, _| {
 9592            assert_eq!(workspace.zoomed, None);
 9593            assert_eq!(workspace.zoomed_position, None);
 9594        });
 9595
 9596        // When the panel is activated, it is zoomed again.
 9597        cx.dispatch_action(ToggleRightDock);
 9598        workspace.read_with(cx, |workspace, _| {
 9599            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9600            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9601        });
 9602
 9603        // Emitting a ZoomOut event unzooms the panel.
 9604        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
 9605        workspace.read_with(cx, |workspace, _| {
 9606            assert_eq!(workspace.zoomed, None);
 9607            assert_eq!(workspace.zoomed_position, None);
 9608        });
 9609
 9610        // Emit closed event on panel 1, which is active
 9611        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9612
 9613        // Now the left dock is closed, because panel_1 was the active panel
 9614        workspace.update(cx, |workspace, cx| {
 9615            let right_dock = workspace.right_dock();
 9616            assert!(!right_dock.read(cx).is_open());
 9617        });
 9618    }
 9619
 9620    #[gpui::test]
 9621    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
 9622        init_test(cx);
 9623
 9624        let fs = FakeFs::new(cx.background_executor.clone());
 9625        let project = Project::test(fs, [], cx).await;
 9626        let (workspace, cx) =
 9627            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9628        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9629
 9630        let dirty_regular_buffer = cx.new(|cx| {
 9631            TestItem::new(cx)
 9632                .with_dirty(true)
 9633                .with_label("1.txt")
 9634                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9635        });
 9636        let dirty_regular_buffer_2 = cx.new(|cx| {
 9637            TestItem::new(cx)
 9638                .with_dirty(true)
 9639                .with_label("2.txt")
 9640                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9641        });
 9642        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9643            TestItem::new(cx)
 9644                .with_dirty(true)
 9645                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9646                .with_label("Fake Project Search")
 9647                .with_project_items(&[
 9648                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9649                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9650                ])
 9651        });
 9652        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9653        workspace.update_in(cx, |workspace, window, cx| {
 9654            workspace.add_item(
 9655                pane.clone(),
 9656                Box::new(dirty_regular_buffer.clone()),
 9657                None,
 9658                false,
 9659                false,
 9660                window,
 9661                cx,
 9662            );
 9663            workspace.add_item(
 9664                pane.clone(),
 9665                Box::new(dirty_regular_buffer_2.clone()),
 9666                None,
 9667                false,
 9668                false,
 9669                window,
 9670                cx,
 9671            );
 9672            workspace.add_item(
 9673                pane.clone(),
 9674                Box::new(dirty_multi_buffer_with_both.clone()),
 9675                None,
 9676                false,
 9677                false,
 9678                window,
 9679                cx,
 9680            );
 9681        });
 9682
 9683        pane.update_in(cx, |pane, window, cx| {
 9684            pane.activate_item(2, true, true, window, cx);
 9685            assert_eq!(
 9686                pane.active_item().unwrap().item_id(),
 9687                multi_buffer_with_both_files_id,
 9688                "Should select the multi buffer in the pane"
 9689            );
 9690        });
 9691        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9692            pane.close_other_items(
 9693                &CloseOtherItems {
 9694                    save_intent: Some(SaveIntent::Save),
 9695                    close_pinned: true,
 9696                },
 9697                None,
 9698                window,
 9699                cx,
 9700            )
 9701        });
 9702        cx.background_executor.run_until_parked();
 9703        assert!(!cx.has_pending_prompt());
 9704        close_all_but_multi_buffer_task
 9705            .await
 9706            .expect("Closing all buffers but the multi buffer failed");
 9707        pane.update(cx, |pane, cx| {
 9708            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
 9709            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
 9710            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
 9711            assert_eq!(pane.items_len(), 1);
 9712            assert_eq!(
 9713                pane.active_item().unwrap().item_id(),
 9714                multi_buffer_with_both_files_id,
 9715                "Should have only the multi buffer left in the pane"
 9716            );
 9717            assert!(
 9718                dirty_multi_buffer_with_both.read(cx).is_dirty,
 9719                "The multi buffer containing the unsaved buffer should still be dirty"
 9720            );
 9721        });
 9722
 9723        dirty_regular_buffer.update(cx, |buffer, cx| {
 9724            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
 9725        });
 9726
 9727        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9728            pane.close_active_item(
 9729                &CloseActiveItem {
 9730                    save_intent: Some(SaveIntent::Close),
 9731                    close_pinned: false,
 9732                },
 9733                window,
 9734                cx,
 9735            )
 9736        });
 9737        cx.background_executor.run_until_parked();
 9738        assert!(
 9739            cx.has_pending_prompt(),
 9740            "Dirty multi buffer should prompt a save dialog"
 9741        );
 9742        cx.simulate_prompt_answer("Save");
 9743        cx.background_executor.run_until_parked();
 9744        close_multi_buffer_task
 9745            .await
 9746            .expect("Closing the multi buffer failed");
 9747        pane.update(cx, |pane, cx| {
 9748            assert_eq!(
 9749                dirty_multi_buffer_with_both.read(cx).save_count,
 9750                1,
 9751                "Multi buffer item should get be saved"
 9752            );
 9753            // Test impl does not save inner items, so we do not assert them
 9754            assert_eq!(
 9755                pane.items_len(),
 9756                0,
 9757                "No more items should be left in the pane"
 9758            );
 9759            assert!(pane.active_item().is_none());
 9760        });
 9761    }
 9762
 9763    #[gpui::test]
 9764    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
 9765        cx: &mut TestAppContext,
 9766    ) {
 9767        init_test(cx);
 9768
 9769        let fs = FakeFs::new(cx.background_executor.clone());
 9770        let project = Project::test(fs, [], cx).await;
 9771        let (workspace, cx) =
 9772            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9773        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9774
 9775        let dirty_regular_buffer = cx.new(|cx| {
 9776            TestItem::new(cx)
 9777                .with_dirty(true)
 9778                .with_label("1.txt")
 9779                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9780        });
 9781        let dirty_regular_buffer_2 = cx.new(|cx| {
 9782            TestItem::new(cx)
 9783                .with_dirty(true)
 9784                .with_label("2.txt")
 9785                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9786        });
 9787        let clear_regular_buffer = cx.new(|cx| {
 9788            TestItem::new(cx)
 9789                .with_label("3.txt")
 9790                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9791        });
 9792
 9793        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9794            TestItem::new(cx)
 9795                .with_dirty(true)
 9796                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9797                .with_label("Fake Project Search")
 9798                .with_project_items(&[
 9799                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9800                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9801                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9802                ])
 9803        });
 9804        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9805        workspace.update_in(cx, |workspace, window, cx| {
 9806            workspace.add_item(
 9807                pane.clone(),
 9808                Box::new(dirty_regular_buffer.clone()),
 9809                None,
 9810                false,
 9811                false,
 9812                window,
 9813                cx,
 9814            );
 9815            workspace.add_item(
 9816                pane.clone(),
 9817                Box::new(dirty_multi_buffer_with_both.clone()),
 9818                None,
 9819                false,
 9820                false,
 9821                window,
 9822                cx,
 9823            );
 9824        });
 9825
 9826        pane.update_in(cx, |pane, window, cx| {
 9827            pane.activate_item(1, true, true, window, cx);
 9828            assert_eq!(
 9829                pane.active_item().unwrap().item_id(),
 9830                multi_buffer_with_both_files_id,
 9831                "Should select the multi buffer in the pane"
 9832            );
 9833        });
 9834        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9835            pane.close_active_item(
 9836                &CloseActiveItem {
 9837                    save_intent: None,
 9838                    close_pinned: false,
 9839                },
 9840                window,
 9841                cx,
 9842            )
 9843        });
 9844        cx.background_executor.run_until_parked();
 9845        assert!(
 9846            cx.has_pending_prompt(),
 9847            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
 9848        );
 9849    }
 9850
 9851    /// Tests that when `close_on_file_delete` is enabled, files are automatically
 9852    /// closed when they are deleted from disk.
 9853    #[gpui::test]
 9854    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
 9855        init_test(cx);
 9856
 9857        // Enable the close_on_disk_deletion setting
 9858        cx.update_global(|store: &mut SettingsStore, cx| {
 9859            store.update_user_settings(cx, |settings| {
 9860                settings.workspace.close_on_file_delete = Some(true);
 9861            });
 9862        });
 9863
 9864        let fs = FakeFs::new(cx.background_executor.clone());
 9865        let project = Project::test(fs, [], cx).await;
 9866        let (workspace, cx) =
 9867            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9868        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9869
 9870        // Create a test item that simulates a file
 9871        let item = cx.new(|cx| {
 9872            TestItem::new(cx)
 9873                .with_label("test.txt")
 9874                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9875        });
 9876
 9877        // Add item to workspace
 9878        workspace.update_in(cx, |workspace, window, cx| {
 9879            workspace.add_item(
 9880                pane.clone(),
 9881                Box::new(item.clone()),
 9882                None,
 9883                false,
 9884                false,
 9885                window,
 9886                cx,
 9887            );
 9888        });
 9889
 9890        // Verify the item is in the pane
 9891        pane.read_with(cx, |pane, _| {
 9892            assert_eq!(pane.items().count(), 1);
 9893        });
 9894
 9895        // Simulate file deletion by setting the item's deleted state
 9896        item.update(cx, |item, _| {
 9897            item.set_has_deleted_file(true);
 9898        });
 9899
 9900        // Emit UpdateTab event to trigger the close behavior
 9901        cx.run_until_parked();
 9902        item.update(cx, |_, cx| {
 9903            cx.emit(ItemEvent::UpdateTab);
 9904        });
 9905
 9906        // Allow the close operation to complete
 9907        cx.run_until_parked();
 9908
 9909        // Verify the item was automatically closed
 9910        pane.read_with(cx, |pane, _| {
 9911            assert_eq!(
 9912                pane.items().count(),
 9913                0,
 9914                "Item should be automatically closed when file is deleted"
 9915            );
 9916        });
 9917    }
 9918
 9919    /// Tests that when `close_on_file_delete` is disabled (default), files remain
 9920    /// open with a strikethrough when they are deleted from disk.
 9921    #[gpui::test]
 9922    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
 9923        init_test(cx);
 9924
 9925        // Ensure close_on_disk_deletion is disabled (default)
 9926        cx.update_global(|store: &mut SettingsStore, cx| {
 9927            store.update_user_settings(cx, |settings| {
 9928                settings.workspace.close_on_file_delete = Some(false);
 9929            });
 9930        });
 9931
 9932        let fs = FakeFs::new(cx.background_executor.clone());
 9933        let project = Project::test(fs, [], cx).await;
 9934        let (workspace, cx) =
 9935            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9936        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9937
 9938        // Create a test item that simulates a file
 9939        let item = cx.new(|cx| {
 9940            TestItem::new(cx)
 9941                .with_label("test.txt")
 9942                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9943        });
 9944
 9945        // Add item to workspace
 9946        workspace.update_in(cx, |workspace, window, cx| {
 9947            workspace.add_item(
 9948                pane.clone(),
 9949                Box::new(item.clone()),
 9950                None,
 9951                false,
 9952                false,
 9953                window,
 9954                cx,
 9955            );
 9956        });
 9957
 9958        // Verify the item is in the pane
 9959        pane.read_with(cx, |pane, _| {
 9960            assert_eq!(pane.items().count(), 1);
 9961        });
 9962
 9963        // Simulate file deletion
 9964        item.update(cx, |item, _| {
 9965            item.set_has_deleted_file(true);
 9966        });
 9967
 9968        // Emit UpdateTab event
 9969        cx.run_until_parked();
 9970        item.update(cx, |_, cx| {
 9971            cx.emit(ItemEvent::UpdateTab);
 9972        });
 9973
 9974        // Allow any potential close operation to complete
 9975        cx.run_until_parked();
 9976
 9977        // Verify the item remains open (with strikethrough)
 9978        pane.read_with(cx, |pane, _| {
 9979            assert_eq!(
 9980                pane.items().count(),
 9981                1,
 9982                "Item should remain open when close_on_disk_deletion is disabled"
 9983            );
 9984        });
 9985
 9986        // Verify the item shows as deleted
 9987        item.read_with(cx, |item, _| {
 9988            assert!(
 9989                item.has_deleted_file,
 9990                "Item should be marked as having deleted file"
 9991            );
 9992        });
 9993    }
 9994
 9995    /// Tests that dirty files are not automatically closed when deleted from disk,
 9996    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
 9997    /// unsaved changes without being prompted.
 9998    #[gpui::test]
 9999    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10000        init_test(cx);
10001
10002        // Enable the close_on_file_delete setting
10003        cx.update_global(|store: &mut SettingsStore, cx| {
10004            store.update_user_settings(cx, |settings| {
10005                settings.workspace.close_on_file_delete = Some(true);
10006            });
10007        });
10008
10009        let fs = FakeFs::new(cx.background_executor.clone());
10010        let project = Project::test(fs, [], cx).await;
10011        let (workspace, cx) =
10012            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10013        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10014
10015        // Create a dirty test item
10016        let item = cx.new(|cx| {
10017            TestItem::new(cx)
10018                .with_dirty(true)
10019                .with_label("test.txt")
10020                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10021        });
10022
10023        // Add item to workspace
10024        workspace.update_in(cx, |workspace, window, cx| {
10025            workspace.add_item(
10026                pane.clone(),
10027                Box::new(item.clone()),
10028                None,
10029                false,
10030                false,
10031                window,
10032                cx,
10033            );
10034        });
10035
10036        // Simulate file deletion
10037        item.update(cx, |item, _| {
10038            item.set_has_deleted_file(true);
10039        });
10040
10041        // Emit UpdateTab event to trigger the close behavior
10042        cx.run_until_parked();
10043        item.update(cx, |_, cx| {
10044            cx.emit(ItemEvent::UpdateTab);
10045        });
10046
10047        // Allow any potential close operation to complete
10048        cx.run_until_parked();
10049
10050        // Verify the item remains open (dirty files are not auto-closed)
10051        pane.read_with(cx, |pane, _| {
10052            assert_eq!(
10053                pane.items().count(),
10054                1,
10055                "Dirty items should not be automatically closed even when file is deleted"
10056            );
10057        });
10058
10059        // Verify the item is marked as deleted and still dirty
10060        item.read_with(cx, |item, _| {
10061            assert!(
10062                item.has_deleted_file,
10063                "Item should be marked as having deleted file"
10064            );
10065            assert!(item.is_dirty, "Item should still be dirty");
10066        });
10067    }
10068
10069    /// Tests that navigation history is cleaned up when files are auto-closed
10070    /// due to deletion from disk.
10071    #[gpui::test]
10072    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
10073        init_test(cx);
10074
10075        // Enable the close_on_file_delete setting
10076        cx.update_global(|store: &mut SettingsStore, cx| {
10077            store.update_user_settings(cx, |settings| {
10078                settings.workspace.close_on_file_delete = Some(true);
10079            });
10080        });
10081
10082        let fs = FakeFs::new(cx.background_executor.clone());
10083        let project = Project::test(fs, [], cx).await;
10084        let (workspace, cx) =
10085            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10086        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10087
10088        // Create test items
10089        let item1 = cx.new(|cx| {
10090            TestItem::new(cx)
10091                .with_label("test1.txt")
10092                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
10093        });
10094        let item1_id = item1.item_id();
10095
10096        let item2 = cx.new(|cx| {
10097            TestItem::new(cx)
10098                .with_label("test2.txt")
10099                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
10100        });
10101
10102        // Add items to workspace
10103        workspace.update_in(cx, |workspace, window, cx| {
10104            workspace.add_item(
10105                pane.clone(),
10106                Box::new(item1.clone()),
10107                None,
10108                false,
10109                false,
10110                window,
10111                cx,
10112            );
10113            workspace.add_item(
10114                pane.clone(),
10115                Box::new(item2.clone()),
10116                None,
10117                false,
10118                false,
10119                window,
10120                cx,
10121            );
10122        });
10123
10124        // Activate item1 to ensure it gets navigation entries
10125        pane.update_in(cx, |pane, window, cx| {
10126            pane.activate_item(0, true, true, window, cx);
10127        });
10128
10129        // Switch to item2 and back to create navigation history
10130        pane.update_in(cx, |pane, window, cx| {
10131            pane.activate_item(1, true, true, window, cx);
10132        });
10133        cx.run_until_parked();
10134
10135        pane.update_in(cx, |pane, window, cx| {
10136            pane.activate_item(0, true, true, window, cx);
10137        });
10138        cx.run_until_parked();
10139
10140        // Simulate file deletion for item1
10141        item1.update(cx, |item, _| {
10142            item.set_has_deleted_file(true);
10143        });
10144
10145        // Emit UpdateTab event to trigger the close behavior
10146        item1.update(cx, |_, cx| {
10147            cx.emit(ItemEvent::UpdateTab);
10148        });
10149        cx.run_until_parked();
10150
10151        // Verify item1 was closed
10152        pane.read_with(cx, |pane, _| {
10153            assert_eq!(
10154                pane.items().count(),
10155                1,
10156                "Should have 1 item remaining after auto-close"
10157            );
10158        });
10159
10160        // Check navigation history after close
10161        let has_item = pane.read_with(cx, |pane, cx| {
10162            let mut has_item = false;
10163            pane.nav_history().for_each_entry(cx, |entry, _| {
10164                if entry.item.id() == item1_id {
10165                    has_item = true;
10166                }
10167            });
10168            has_item
10169        });
10170
10171        assert!(
10172            !has_item,
10173            "Navigation history should not contain closed item entries"
10174        );
10175    }
10176
10177    #[gpui::test]
10178    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10179        cx: &mut TestAppContext,
10180    ) {
10181        init_test(cx);
10182
10183        let fs = FakeFs::new(cx.background_executor.clone());
10184        let project = Project::test(fs, [], cx).await;
10185        let (workspace, cx) =
10186            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10187        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10188
10189        let dirty_regular_buffer = cx.new(|cx| {
10190            TestItem::new(cx)
10191                .with_dirty(true)
10192                .with_label("1.txt")
10193                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10194        });
10195        let dirty_regular_buffer_2 = cx.new(|cx| {
10196            TestItem::new(cx)
10197                .with_dirty(true)
10198                .with_label("2.txt")
10199                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10200        });
10201        let clear_regular_buffer = cx.new(|cx| {
10202            TestItem::new(cx)
10203                .with_label("3.txt")
10204                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10205        });
10206
10207        let dirty_multi_buffer = cx.new(|cx| {
10208            TestItem::new(cx)
10209                .with_dirty(true)
10210                .with_buffer_kind(ItemBufferKind::Multibuffer)
10211                .with_label("Fake Project Search")
10212                .with_project_items(&[
10213                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10214                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10215                    clear_regular_buffer.read(cx).project_items[0].clone(),
10216                ])
10217        });
10218        workspace.update_in(cx, |workspace, window, cx| {
10219            workspace.add_item(
10220                pane.clone(),
10221                Box::new(dirty_regular_buffer.clone()),
10222                None,
10223                false,
10224                false,
10225                window,
10226                cx,
10227            );
10228            workspace.add_item(
10229                pane.clone(),
10230                Box::new(dirty_regular_buffer_2.clone()),
10231                None,
10232                false,
10233                false,
10234                window,
10235                cx,
10236            );
10237            workspace.add_item(
10238                pane.clone(),
10239                Box::new(dirty_multi_buffer.clone()),
10240                None,
10241                false,
10242                false,
10243                window,
10244                cx,
10245            );
10246        });
10247
10248        pane.update_in(cx, |pane, window, cx| {
10249            pane.activate_item(2, true, true, window, cx);
10250            assert_eq!(
10251                pane.active_item().unwrap().item_id(),
10252                dirty_multi_buffer.item_id(),
10253                "Should select the multi buffer in the pane"
10254            );
10255        });
10256        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10257            pane.close_active_item(
10258                &CloseActiveItem {
10259                    save_intent: None,
10260                    close_pinned: false,
10261                },
10262                window,
10263                cx,
10264            )
10265        });
10266        cx.background_executor.run_until_parked();
10267        assert!(
10268            !cx.has_pending_prompt(),
10269            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10270        );
10271        close_multi_buffer_task
10272            .await
10273            .expect("Closing multi buffer failed");
10274        pane.update(cx, |pane, cx| {
10275            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10276            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10277            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10278            assert_eq!(
10279                pane.items()
10280                    .map(|item| item.item_id())
10281                    .sorted()
10282                    .collect::<Vec<_>>(),
10283                vec![
10284                    dirty_regular_buffer.item_id(),
10285                    dirty_regular_buffer_2.item_id(),
10286                ],
10287                "Should have no multi buffer left in the pane"
10288            );
10289            assert!(dirty_regular_buffer.read(cx).is_dirty);
10290            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10291        });
10292    }
10293
10294    #[gpui::test]
10295    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10296        init_test(cx);
10297        let fs = FakeFs::new(cx.executor());
10298        let project = Project::test(fs, [], cx).await;
10299        let (workspace, cx) =
10300            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10301
10302        // Add a new panel to the right dock, opening the dock and setting the
10303        // focus to the new panel.
10304        let panel = workspace.update_in(cx, |workspace, window, cx| {
10305            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10306            workspace.add_panel(panel.clone(), window, cx);
10307
10308            workspace
10309                .right_dock()
10310                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10311
10312            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10313
10314            panel
10315        });
10316
10317        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10318        // panel to the next valid position which, in this case, is the left
10319        // dock.
10320        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10321        workspace.update(cx, |workspace, cx| {
10322            assert!(workspace.left_dock().read(cx).is_open());
10323            assert_eq!(panel.read(cx).position, DockPosition::Left);
10324        });
10325
10326        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10327        // panel to the next valid position which, in this case, is the bottom
10328        // dock.
10329        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10330        workspace.update(cx, |workspace, cx| {
10331            assert!(workspace.bottom_dock().read(cx).is_open());
10332            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10333        });
10334
10335        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10336        // around moving the panel to its initial position, the right dock.
10337        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10338        workspace.update(cx, |workspace, cx| {
10339            assert!(workspace.right_dock().read(cx).is_open());
10340            assert_eq!(panel.read(cx).position, DockPosition::Right);
10341        });
10342
10343        // Remove focus from the panel, ensuring that, if the panel is not
10344        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10345        // the panel's position, so the panel is still in the right dock.
10346        workspace.update_in(cx, |workspace, window, cx| {
10347            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10348        });
10349
10350        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10351        workspace.update(cx, |workspace, cx| {
10352            assert!(workspace.right_dock().read(cx).is_open());
10353            assert_eq!(panel.read(cx).position, DockPosition::Right);
10354        });
10355    }
10356
10357    #[gpui::test]
10358    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10359        init_test(cx);
10360
10361        let fs = FakeFs::new(cx.executor());
10362        let project = Project::test(fs, [], cx).await;
10363        let (workspace, cx) =
10364            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10365
10366        let item_1 = cx.new(|cx| {
10367            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10368        });
10369        workspace.update_in(cx, |workspace, window, cx| {
10370            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10371            workspace.move_item_to_pane_in_direction(
10372                &MoveItemToPaneInDirection {
10373                    direction: SplitDirection::Right,
10374                    focus: true,
10375                    clone: false,
10376                },
10377                window,
10378                cx,
10379            );
10380            workspace.move_item_to_pane_at_index(
10381                &MoveItemToPane {
10382                    destination: 3,
10383                    focus: true,
10384                    clone: false,
10385                },
10386                window,
10387                cx,
10388            );
10389
10390            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10391            assert_eq!(
10392                pane_items_paths(&workspace.active_pane, cx),
10393                vec!["first.txt".to_string()],
10394                "Single item was not moved anywhere"
10395            );
10396        });
10397
10398        let item_2 = cx.new(|cx| {
10399            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10400        });
10401        workspace.update_in(cx, |workspace, window, cx| {
10402            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10403            assert_eq!(
10404                pane_items_paths(&workspace.panes[0], cx),
10405                vec!["first.txt".to_string(), "second.txt".to_string()],
10406            );
10407            workspace.move_item_to_pane_in_direction(
10408                &MoveItemToPaneInDirection {
10409                    direction: SplitDirection::Right,
10410                    focus: true,
10411                    clone: false,
10412                },
10413                window,
10414                cx,
10415            );
10416
10417            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10418            assert_eq!(
10419                pane_items_paths(&workspace.panes[0], cx),
10420                vec!["first.txt".to_string()],
10421                "After moving, one item should be left in the original pane"
10422            );
10423            assert_eq!(
10424                pane_items_paths(&workspace.panes[1], cx),
10425                vec!["second.txt".to_string()],
10426                "New item should have been moved to the new pane"
10427            );
10428        });
10429
10430        let item_3 = cx.new(|cx| {
10431            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10432        });
10433        workspace.update_in(cx, |workspace, window, cx| {
10434            let original_pane = workspace.panes[0].clone();
10435            workspace.set_active_pane(&original_pane, window, cx);
10436            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10437            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10438            assert_eq!(
10439                pane_items_paths(&workspace.active_pane, cx),
10440                vec!["first.txt".to_string(), "third.txt".to_string()],
10441                "New pane should be ready to move one item out"
10442            );
10443
10444            workspace.move_item_to_pane_at_index(
10445                &MoveItemToPane {
10446                    destination: 3,
10447                    focus: true,
10448                    clone: false,
10449                },
10450                window,
10451                cx,
10452            );
10453            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10454            assert_eq!(
10455                pane_items_paths(&workspace.active_pane, cx),
10456                vec!["first.txt".to_string()],
10457                "After moving, one item should be left in the original pane"
10458            );
10459            assert_eq!(
10460                pane_items_paths(&workspace.panes[1], cx),
10461                vec!["second.txt".to_string()],
10462                "Previously created pane should be unchanged"
10463            );
10464            assert_eq!(
10465                pane_items_paths(&workspace.panes[2], cx),
10466                vec!["third.txt".to_string()],
10467                "New item should have been moved to the new pane"
10468            );
10469        });
10470    }
10471
10472    #[gpui::test]
10473    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10474        init_test(cx);
10475
10476        let fs = FakeFs::new(cx.executor());
10477        let project = Project::test(fs, [], cx).await;
10478        let (workspace, cx) =
10479            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10480
10481        let item_1 = cx.new(|cx| {
10482            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10483        });
10484        workspace.update_in(cx, |workspace, window, cx| {
10485            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10486            workspace.move_item_to_pane_in_direction(
10487                &MoveItemToPaneInDirection {
10488                    direction: SplitDirection::Right,
10489                    focus: true,
10490                    clone: true,
10491                },
10492                window,
10493                cx,
10494            );
10495            workspace.move_item_to_pane_at_index(
10496                &MoveItemToPane {
10497                    destination: 3,
10498                    focus: true,
10499                    clone: true,
10500                },
10501                window,
10502                cx,
10503            );
10504
10505            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10506            for pane in workspace.panes() {
10507                assert_eq!(
10508                    pane_items_paths(pane, cx),
10509                    vec!["first.txt".to_string()],
10510                    "Single item exists in all panes"
10511                );
10512            }
10513        });
10514
10515        // verify that the active pane has been updated after waiting for the
10516        // pane focus event to fire and resolve
10517        workspace.read_with(cx, |workspace, _app| {
10518            assert_eq!(
10519                workspace.active_pane(),
10520                &workspace.panes[2],
10521                "The third pane should be the active one: {:?}",
10522                workspace.panes
10523            );
10524        })
10525    }
10526
10527    mod register_project_item_tests {
10528
10529        use super::*;
10530
10531        // View
10532        struct TestPngItemView {
10533            focus_handle: FocusHandle,
10534        }
10535        // Model
10536        struct TestPngItem {}
10537
10538        impl project::ProjectItem for TestPngItem {
10539            fn try_open(
10540                _project: &Entity<Project>,
10541                path: &ProjectPath,
10542                cx: &mut App,
10543            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10544                if path.path.extension().unwrap() == "png" {
10545                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10546                } else {
10547                    None
10548                }
10549            }
10550
10551            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10552                None
10553            }
10554
10555            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10556                None
10557            }
10558
10559            fn is_dirty(&self) -> bool {
10560                false
10561            }
10562        }
10563
10564        impl Item for TestPngItemView {
10565            type Event = ();
10566            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10567                "".into()
10568            }
10569        }
10570        impl EventEmitter<()> for TestPngItemView {}
10571        impl Focusable for TestPngItemView {
10572            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10573                self.focus_handle.clone()
10574            }
10575        }
10576
10577        impl Render for TestPngItemView {
10578            fn render(
10579                &mut self,
10580                _window: &mut Window,
10581                _cx: &mut Context<Self>,
10582            ) -> impl IntoElement {
10583                Empty
10584            }
10585        }
10586
10587        impl ProjectItem for TestPngItemView {
10588            type Item = TestPngItem;
10589
10590            fn for_project_item(
10591                _project: Entity<Project>,
10592                _pane: Option<&Pane>,
10593                _item: Entity<Self::Item>,
10594                _: &mut Window,
10595                cx: &mut Context<Self>,
10596            ) -> Self
10597            where
10598                Self: Sized,
10599            {
10600                Self {
10601                    focus_handle: cx.focus_handle(),
10602                }
10603            }
10604        }
10605
10606        // View
10607        struct TestIpynbItemView {
10608            focus_handle: FocusHandle,
10609        }
10610        // Model
10611        struct TestIpynbItem {}
10612
10613        impl project::ProjectItem for TestIpynbItem {
10614            fn try_open(
10615                _project: &Entity<Project>,
10616                path: &ProjectPath,
10617                cx: &mut App,
10618            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10619                if path.path.extension().unwrap() == "ipynb" {
10620                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
10621                } else {
10622                    None
10623                }
10624            }
10625
10626            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10627                None
10628            }
10629
10630            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10631                None
10632            }
10633
10634            fn is_dirty(&self) -> bool {
10635                false
10636            }
10637        }
10638
10639        impl Item for TestIpynbItemView {
10640            type Event = ();
10641            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10642                "".into()
10643            }
10644        }
10645        impl EventEmitter<()> for TestIpynbItemView {}
10646        impl Focusable for TestIpynbItemView {
10647            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10648                self.focus_handle.clone()
10649            }
10650        }
10651
10652        impl Render for TestIpynbItemView {
10653            fn render(
10654                &mut self,
10655                _window: &mut Window,
10656                _cx: &mut Context<Self>,
10657            ) -> impl IntoElement {
10658                Empty
10659            }
10660        }
10661
10662        impl ProjectItem for TestIpynbItemView {
10663            type Item = TestIpynbItem;
10664
10665            fn for_project_item(
10666                _project: Entity<Project>,
10667                _pane: Option<&Pane>,
10668                _item: Entity<Self::Item>,
10669                _: &mut Window,
10670                cx: &mut Context<Self>,
10671            ) -> Self
10672            where
10673                Self: Sized,
10674            {
10675                Self {
10676                    focus_handle: cx.focus_handle(),
10677                }
10678            }
10679        }
10680
10681        struct TestAlternatePngItemView {
10682            focus_handle: FocusHandle,
10683        }
10684
10685        impl Item for TestAlternatePngItemView {
10686            type Event = ();
10687            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10688                "".into()
10689            }
10690        }
10691
10692        impl EventEmitter<()> for TestAlternatePngItemView {}
10693        impl Focusable for TestAlternatePngItemView {
10694            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10695                self.focus_handle.clone()
10696            }
10697        }
10698
10699        impl Render for TestAlternatePngItemView {
10700            fn render(
10701                &mut self,
10702                _window: &mut Window,
10703                _cx: &mut Context<Self>,
10704            ) -> impl IntoElement {
10705                Empty
10706            }
10707        }
10708
10709        impl ProjectItem for TestAlternatePngItemView {
10710            type Item = TestPngItem;
10711
10712            fn for_project_item(
10713                _project: Entity<Project>,
10714                _pane: Option<&Pane>,
10715                _item: Entity<Self::Item>,
10716                _: &mut Window,
10717                cx: &mut Context<Self>,
10718            ) -> Self
10719            where
10720                Self: Sized,
10721            {
10722                Self {
10723                    focus_handle: cx.focus_handle(),
10724                }
10725            }
10726        }
10727
10728        #[gpui::test]
10729        async fn test_register_project_item(cx: &mut TestAppContext) {
10730            init_test(cx);
10731
10732            cx.update(|cx| {
10733                register_project_item::<TestPngItemView>(cx);
10734                register_project_item::<TestIpynbItemView>(cx);
10735            });
10736
10737            let fs = FakeFs::new(cx.executor());
10738            fs.insert_tree(
10739                "/root1",
10740                json!({
10741                    "one.png": "BINARYDATAHERE",
10742                    "two.ipynb": "{ totally a notebook }",
10743                    "three.txt": "editing text, sure why not?"
10744                }),
10745            )
10746            .await;
10747
10748            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10749            let (workspace, cx) =
10750                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10751
10752            let worktree_id = project.update(cx, |project, cx| {
10753                project.worktrees(cx).next().unwrap().read(cx).id()
10754            });
10755
10756            let handle = workspace
10757                .update_in(cx, |workspace, window, cx| {
10758                    let project_path = (worktree_id, rel_path("one.png"));
10759                    workspace.open_path(project_path, None, true, window, cx)
10760                })
10761                .await
10762                .unwrap();
10763
10764            // Now we can check if the handle we got back errored or not
10765            assert_eq!(
10766                handle.to_any().entity_type(),
10767                TypeId::of::<TestPngItemView>()
10768            );
10769
10770            let handle = workspace
10771                .update_in(cx, |workspace, window, cx| {
10772                    let project_path = (worktree_id, rel_path("two.ipynb"));
10773                    workspace.open_path(project_path, None, true, window, cx)
10774                })
10775                .await
10776                .unwrap();
10777
10778            assert_eq!(
10779                handle.to_any().entity_type(),
10780                TypeId::of::<TestIpynbItemView>()
10781            );
10782
10783            let handle = workspace
10784                .update_in(cx, |workspace, window, cx| {
10785                    let project_path = (worktree_id, rel_path("three.txt"));
10786                    workspace.open_path(project_path, None, true, window, cx)
10787                })
10788                .await;
10789            assert!(handle.is_err());
10790        }
10791
10792        #[gpui::test]
10793        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
10794            init_test(cx);
10795
10796            cx.update(|cx| {
10797                register_project_item::<TestPngItemView>(cx);
10798                register_project_item::<TestAlternatePngItemView>(cx);
10799            });
10800
10801            let fs = FakeFs::new(cx.executor());
10802            fs.insert_tree(
10803                "/root1",
10804                json!({
10805                    "one.png": "BINARYDATAHERE",
10806                    "two.ipynb": "{ totally a notebook }",
10807                    "three.txt": "editing text, sure why not?"
10808                }),
10809            )
10810            .await;
10811            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10812            let (workspace, cx) =
10813                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10814            let worktree_id = project.update(cx, |project, cx| {
10815                project.worktrees(cx).next().unwrap().read(cx).id()
10816            });
10817
10818            let handle = workspace
10819                .update_in(cx, |workspace, window, cx| {
10820                    let project_path = (worktree_id, rel_path("one.png"));
10821                    workspace.open_path(project_path, None, true, window, cx)
10822                })
10823                .await
10824                .unwrap();
10825
10826            // This _must_ be the second item registered
10827            assert_eq!(
10828                handle.to_any().entity_type(),
10829                TypeId::of::<TestAlternatePngItemView>()
10830            );
10831
10832            let handle = workspace
10833                .update_in(cx, |workspace, window, cx| {
10834                    let project_path = (worktree_id, rel_path("three.txt"));
10835                    workspace.open_path(project_path, None, true, window, cx)
10836                })
10837                .await;
10838            assert!(handle.is_err());
10839        }
10840    }
10841
10842    #[gpui::test]
10843    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
10844        init_test(cx);
10845
10846        let fs = FakeFs::new(cx.executor());
10847        let project = Project::test(fs, [], cx).await;
10848        let (workspace, _cx) =
10849            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10850
10851        // Test with status bar shown (default)
10852        workspace.read_with(cx, |workspace, cx| {
10853            let visible = workspace.status_bar_visible(cx);
10854            assert!(visible, "Status bar should be visible by default");
10855        });
10856
10857        // Test with status bar hidden
10858        cx.update_global(|store: &mut SettingsStore, cx| {
10859            store.update_user_settings(cx, |settings| {
10860                settings.status_bar.get_or_insert_default().show = Some(false);
10861            });
10862        });
10863
10864        workspace.read_with(cx, |workspace, cx| {
10865            let visible = workspace.status_bar_visible(cx);
10866            assert!(!visible, "Status bar should be hidden when show is false");
10867        });
10868
10869        // Test with status bar shown explicitly
10870        cx.update_global(|store: &mut SettingsStore, cx| {
10871            store.update_user_settings(cx, |settings| {
10872                settings.status_bar.get_or_insert_default().show = Some(true);
10873            });
10874        });
10875
10876        workspace.read_with(cx, |workspace, cx| {
10877            let visible = workspace.status_bar_visible(cx);
10878            assert!(visible, "Status bar should be visible when show is true");
10879        });
10880    }
10881
10882    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
10883        pane.read(cx)
10884            .items()
10885            .flat_map(|item| {
10886                item.project_paths(cx)
10887                    .into_iter()
10888                    .map(|path| path.path.display(PathStyle::local()).into_owned())
10889            })
10890            .collect()
10891    }
10892
10893    pub fn init_test(cx: &mut TestAppContext) {
10894        cx.update(|cx| {
10895            let settings_store = SettingsStore::test(cx);
10896            cx.set_global(settings_store);
10897            theme::init(theme::LoadThemes::JustBase, cx);
10898            language::init(cx);
10899            crate::init_settings(cx);
10900            Project::init_settings(cx);
10901        });
10902    }
10903
10904    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
10905        let item = TestProjectItem::new(id, path, cx);
10906        item.update(cx, |item, _| {
10907            item.is_dirty = true;
10908        });
10909        item
10910    }
10911}