workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod item;
    4mod modal_layer;
    5pub mod notifications;
    6pub mod pane;
    7pub mod pane_group;
    8mod persistence;
    9pub mod searchable;
   10pub mod shared_screen;
   11mod status_bar;
   12pub mod tasks;
   13mod theme_preview;
   14mod toast_layer;
   15mod toolbar;
   16mod workspace_settings;
   17
   18pub use crate::notifications::NotificationFrame;
   19pub use dock::Panel;
   20pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   21
   22use anyhow::{Context as _, Result, anyhow};
   23use call::{ActiveCall, call_settings::CallSettings};
   24use client::{
   25    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   26    proto::{self, ErrorCode, PanelId, PeerId},
   27};
   28use collections::{HashMap, HashSet, hash_map};
   29use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   30use futures::{
   31    Future, FutureExt, StreamExt,
   32    channel::{
   33        mpsc::{self, UnboundedReceiver, UnboundedSender},
   34        oneshot,
   35    },
   36    future::{Shared, try_join_all},
   37};
   38use gpui::{
   39    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   40    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   41    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   42    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription, Task,
   43    Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId, WindowOptions, actions, canvas,
   44    point, relative, size, transparent_black,
   45};
   46pub use history_manager::*;
   47pub use item::{
   48    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   49    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   50};
   51use itertools::Itertools;
   52use language::{
   53    Buffer, LanguageRegistry, Rope,
   54    language_settings::{AllLanguageSettings, all_language_settings},
   55};
   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::*;
   64use persistence::{
   65    DB, SerializedWindowBounds,
   66    model::{SerializedSshProject, SerializedWorkspace},
   67};
   68pub use persistence::{
   69    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   70    model::{ItemId, LocalPaths, SerializedWorkspaceLocation},
   71};
   72use postage::stream::Stream;
   73use project::{
   74    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   75    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   76};
   77use remote::{SshClientDelegate, SshConnectionOptions, ssh_session::ConnectionIdentifier};
   78use schemars::JsonSchema;
   79use serde::Deserialize;
   80use session::AppSession;
   81use settings::{Settings, update_settings_file};
   82use shared_screen::SharedScreen;
   83use sqlez::{
   84    bindable::{Bind, Column, StaticColumnCount},
   85    statement::Statement,
   86};
   87use status_bar::StatusBar;
   88pub use status_bar::StatusItemView;
   89use std::{
   90    any::TypeId,
   91    borrow::Cow,
   92    cell::RefCell,
   93    cmp,
   94    collections::{VecDeque, hash_map::DefaultHasher},
   95    env,
   96    hash::{Hash, Hasher},
   97    path::{Path, PathBuf},
   98    process::ExitStatus,
   99    rc::Rc,
  100    sync::{Arc, LazyLock, Weak, atomic::AtomicUsize},
  101    time::Duration,
  102};
  103use task::{DebugScenario, SpawnInTerminal, TaskContext};
  104use theme::{ActiveTheme, SystemAppearance, ThemeSettings};
  105pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  106pub use ui;
  107use ui::{Window, prelude::*};
  108use util::{ResultExt, TryFutureExt, paths::SanitizedPath, serde::default_true};
  109use uuid::Uuid;
  110pub use workspace_settings::{
  111    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, TabBarSettings, WorkspaceSettings,
  112};
  113use zed_actions::{Spawn, feedback::FileBugReport};
  114
  115use crate::notifications::NotificationId;
  116use crate::persistence::{
  117    SerializedAxis,
  118    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  119};
  120
  121pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  122
  123static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  124    env::var("ZED_WINDOW_SIZE")
  125        .ok()
  126        .as_deref()
  127        .and_then(parse_pixel_size_env_var)
  128});
  129
  130static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  131    env::var("ZED_WINDOW_POSITION")
  132        .ok()
  133        .as_deref()
  134        .and_then(parse_pixel_position_env_var)
  135});
  136
  137pub trait TerminalProvider {
  138    fn spawn(
  139        &self,
  140        task: SpawnInTerminal,
  141        window: &mut Window,
  142        cx: &mut App,
  143    ) -> Task<Option<Result<ExitStatus>>>;
  144}
  145
  146pub trait DebuggerProvider {
  147    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  148    fn start_session(
  149        &self,
  150        definition: DebugScenario,
  151        task_context: TaskContext,
  152        active_buffer: Option<Entity<Buffer>>,
  153        worktree_id: Option<WorktreeId>,
  154        window: &mut Window,
  155        cx: &mut App,
  156    );
  157
  158    fn spawn_task_or_modal(
  159        &self,
  160        workspace: &mut Workspace,
  161        action: &Spawn,
  162        window: &mut Window,
  163        cx: &mut Context<Workspace>,
  164    );
  165
  166    fn task_scheduled(&self, cx: &mut App);
  167    fn debug_scenario_scheduled(&self, cx: &mut App);
  168    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  169
  170    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  171}
  172
  173actions!(
  174    workspace,
  175    [
  176        /// Activates the next pane in the workspace.
  177        ActivateNextPane,
  178        /// Activates the previous pane in the workspace.
  179        ActivatePreviousPane,
  180        /// Switches to the next window.
  181        ActivateNextWindow,
  182        /// Switches to the previous window.
  183        ActivatePreviousWindow,
  184        /// Adds a folder to the current project.
  185        AddFolderToProject,
  186        /// Clears all notifications.
  187        ClearAllNotifications,
  188        /// Closes the active dock.
  189        CloseActiveDock,
  190        /// Closes all docks.
  191        CloseAllDocks,
  192        /// Closes the current window.
  193        CloseWindow,
  194        /// Opens the feedback dialog.
  195        Feedback,
  196        /// Follows the next collaborator in the session.
  197        FollowNextCollaborator,
  198        /// Moves the focused panel to the next position.
  199        MoveFocusedPanelToNextPosition,
  200        /// Opens a new terminal in the center.
  201        NewCenterTerminal,
  202        /// Creates a new file.
  203        NewFile,
  204        /// Creates a new file in a vertical split.
  205        NewFileSplitVertical,
  206        /// Creates a new file in a horizontal split.
  207        NewFileSplitHorizontal,
  208        /// Opens a new search.
  209        NewSearch,
  210        /// Opens a new terminal.
  211        NewTerminal,
  212        /// Opens a new window.
  213        NewWindow,
  214        /// Opens a file or directory.
  215        Open,
  216        /// Opens multiple files.
  217        OpenFiles,
  218        /// Opens the current location in terminal.
  219        OpenInTerminal,
  220        /// Opens the component preview.
  221        OpenComponentPreview,
  222        /// Reloads the active item.
  223        ReloadActiveItem,
  224        /// Resets the active dock to its default size.
  225        ResetActiveDockSize,
  226        /// Resets all open docks to their default sizes.
  227        ResetOpenDocksSize,
  228        /// Reloads the application
  229        Reload,
  230        /// Saves the current file with a new name.
  231        SaveAs,
  232        /// Saves without formatting.
  233        SaveWithoutFormat,
  234        /// Shuts down all debug adapters.
  235        ShutdownDebugAdapters,
  236        /// Suppresses the current notification.
  237        SuppressNotification,
  238        /// Toggles the bottom dock.
  239        ToggleBottomDock,
  240        /// Toggles centered layout mode.
  241        ToggleCenteredLayout,
  242        /// Toggles edit prediction feature globally for all files.
  243        ToggleEditPrediction,
  244        /// Toggles the left dock.
  245        ToggleLeftDock,
  246        /// Toggles the right dock.
  247        ToggleRightDock,
  248        /// Toggles zoom on the active pane.
  249        ToggleZoom,
  250        /// Stops following a collaborator.
  251        Unfollow,
  252        /// Restores the banner.
  253        RestoreBanner,
  254        /// Toggles expansion of the selected item.
  255        ToggleExpandItem,
  256    ]
  257);
  258
  259/// Activates a specific pane by its index.
  260#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  261#[action(namespace = workspace)]
  262pub struct ActivatePane(pub usize);
  263
  264/// Moves an item to a specific pane by index.
  265#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  266#[action(namespace = workspace)]
  267#[serde(deny_unknown_fields)]
  268pub struct MoveItemToPane {
  269    #[serde(default = "default_1")]
  270    pub destination: usize,
  271    #[serde(default = "default_true")]
  272    pub focus: bool,
  273    #[serde(default)]
  274    pub clone: bool,
  275}
  276
  277fn default_1() -> usize {
  278    1
  279}
  280
  281/// Moves an item to a pane in the specified direction.
  282#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  283#[action(namespace = workspace)]
  284#[serde(deny_unknown_fields)]
  285pub struct MoveItemToPaneInDirection {
  286    #[serde(default = "default_right")]
  287    pub direction: SplitDirection,
  288    #[serde(default = "default_true")]
  289    pub focus: bool,
  290    #[serde(default)]
  291    pub clone: bool,
  292}
  293
  294fn default_right() -> SplitDirection {
  295    SplitDirection::Right
  296}
  297
  298/// Saves all open files in the workspace.
  299#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  300#[action(namespace = workspace)]
  301#[serde(deny_unknown_fields)]
  302pub struct SaveAll {
  303    #[serde(default)]
  304    pub save_intent: Option<SaveIntent>,
  305}
  306
  307/// Saves the current file with the specified options.
  308#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  309#[action(namespace = workspace)]
  310#[serde(deny_unknown_fields)]
  311pub struct Save {
  312    #[serde(default)]
  313    pub save_intent: Option<SaveIntent>,
  314}
  315
  316/// Closes all items and panes in the workspace.
  317#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  318#[action(namespace = workspace)]
  319#[serde(deny_unknown_fields)]
  320pub struct CloseAllItemsAndPanes {
  321    #[serde(default)]
  322    pub save_intent: Option<SaveIntent>,
  323}
  324
  325/// Closes all inactive tabs and panes in the workspace.
  326#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  327#[action(namespace = workspace)]
  328#[serde(deny_unknown_fields)]
  329pub struct CloseInactiveTabsAndPanes {
  330    #[serde(default)]
  331    pub save_intent: Option<SaveIntent>,
  332}
  333
  334/// Sends a sequence of keystrokes to the active element.
  335#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  336#[action(namespace = workspace)]
  337pub struct SendKeystrokes(pub String);
  338
  339actions!(
  340    project_symbols,
  341    [
  342        /// Toggles the project symbols search.
  343        #[action(name = "Toggle")]
  344        ToggleProjectSymbols
  345    ]
  346);
  347
  348/// Toggles the file finder interface.
  349#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  350#[action(namespace = file_finder, name = "Toggle")]
  351#[serde(deny_unknown_fields)]
  352pub struct ToggleFileFinder {
  353    #[serde(default)]
  354    pub separate_history: bool,
  355}
  356
  357/// Increases size of a currently focused dock by a given amount of pixels.
  358#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct IncreaseActiveDockSize {
  362    /// For 0px parameter, uses UI font size value.
  363    #[serde(default)]
  364    pub px: u32,
  365}
  366
  367/// Decreases size of a currently focused dock by a given amount of pixels.
  368#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  369#[action(namespace = workspace)]
  370#[serde(deny_unknown_fields)]
  371pub struct DecreaseActiveDockSize {
  372    /// For 0px parameter, uses UI font size value.
  373    #[serde(default)]
  374    pub px: u32,
  375}
  376
  377/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  378#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  379#[action(namespace = workspace)]
  380#[serde(deny_unknown_fields)]
  381pub struct IncreaseOpenDocksSize {
  382    /// For 0px parameter, uses UI font size value.
  383    #[serde(default)]
  384    pub px: u32,
  385}
  386
  387/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  388#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  389#[action(namespace = workspace)]
  390#[serde(deny_unknown_fields)]
  391pub struct DecreaseOpenDocksSize {
  392    /// For 0px parameter, uses UI font size value.
  393    #[serde(default)]
  394    pub px: u32,
  395}
  396
  397actions!(
  398    workspace,
  399    [
  400        /// Activates the pane to the left.
  401        ActivatePaneLeft,
  402        /// Activates the pane to the right.
  403        ActivatePaneRight,
  404        /// Activates the pane above.
  405        ActivatePaneUp,
  406        /// Activates the pane below.
  407        ActivatePaneDown,
  408        /// Swaps the current pane with the one to the left.
  409        SwapPaneLeft,
  410        /// Swaps the current pane with the one to the right.
  411        SwapPaneRight,
  412        /// Swaps the current pane with the one above.
  413        SwapPaneUp,
  414        /// Swaps the current pane with the one below.
  415        SwapPaneDown,
  416    ]
  417);
  418
  419#[derive(PartialEq, Eq, Debug)]
  420pub enum CloseIntent {
  421    /// Quit the program entirely.
  422    Quit,
  423    /// Close a window.
  424    CloseWindow,
  425    /// Replace the workspace in an existing window.
  426    ReplaceWindow,
  427}
  428
  429#[derive(Clone)]
  430pub struct Toast {
  431    id: NotificationId,
  432    msg: Cow<'static, str>,
  433    autohide: bool,
  434    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  435}
  436
  437impl Toast {
  438    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  439        Toast {
  440            id,
  441            msg: msg.into(),
  442            on_click: None,
  443            autohide: false,
  444        }
  445    }
  446
  447    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  448    where
  449        M: Into<Cow<'static, str>>,
  450        F: Fn(&mut Window, &mut App) + 'static,
  451    {
  452        self.on_click = Some((message.into(), Arc::new(on_click)));
  453        self
  454    }
  455
  456    pub fn autohide(mut self) -> Self {
  457        self.autohide = true;
  458        self
  459    }
  460}
  461
  462impl PartialEq for Toast {
  463    fn eq(&self, other: &Self) -> bool {
  464        self.id == other.id
  465            && self.msg == other.msg
  466            && self.on_click.is_some() == other.on_click.is_some()
  467    }
  468}
  469
  470/// Opens a new terminal with the specified working directory.
  471#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  472#[action(namespace = workspace)]
  473#[serde(deny_unknown_fields)]
  474pub struct OpenTerminal {
  475    pub working_directory: PathBuf,
  476}
  477
  478#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  479pub struct WorkspaceId(i64);
  480
  481impl StaticColumnCount for WorkspaceId {}
  482impl Bind for WorkspaceId {
  483    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  484        self.0.bind(statement, start_index)
  485    }
  486}
  487impl Column for WorkspaceId {
  488    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  489        i64::column(statement, start_index)
  490            .map(|(i, next_index)| (Self(i), next_index))
  491            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  492    }
  493}
  494impl From<WorkspaceId> for i64 {
  495    fn from(val: WorkspaceId) -> Self {
  496        val.0
  497    }
  498}
  499
  500pub fn init_settings(cx: &mut App) {
  501    WorkspaceSettings::register(cx);
  502    ItemSettings::register(cx);
  503    PreviewTabsSettings::register(cx);
  504    TabBarSettings::register(cx);
  505}
  506
  507fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  508    let paths = cx.prompt_for_paths(options);
  509    cx.spawn(
  510        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  511            Ok(Some(paths)) => {
  512                cx.update(|cx| {
  513                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  514                })
  515                .ok();
  516            }
  517            Ok(None) => {}
  518            Err(err) => {
  519                util::log_err(&err);
  520                cx.update(|cx| {
  521                    if let Some(workspace_window) = cx
  522                        .active_window()
  523                        .and_then(|window| window.downcast::<Workspace>())
  524                    {
  525                        workspace_window
  526                            .update(cx, |workspace, _, cx| {
  527                                workspace.show_portal_error(err.to_string(), cx);
  528                            })
  529                            .ok();
  530                    }
  531                })
  532                .ok();
  533            }
  534        },
  535    )
  536    .detach();
  537}
  538
  539pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  540    init_settings(cx);
  541    component::init();
  542    theme_preview::init(cx);
  543    toast_layer::init(cx);
  544    history_manager::init(cx);
  545
  546    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  547    cx.on_action(|_: &Reload, cx| reload(cx));
  548
  549    cx.on_action({
  550        let app_state = Arc::downgrade(&app_state);
  551        move |_: &Open, cx: &mut App| {
  552            if let Some(app_state) = app_state.upgrade() {
  553                prompt_and_open_paths(
  554                    app_state,
  555                    PathPromptOptions {
  556                        files: true,
  557                        directories: true,
  558                        multiple: true,
  559                        prompt: None,
  560                    },
  561                    cx,
  562                );
  563            }
  564        }
  565    });
  566    cx.on_action({
  567        let app_state = Arc::downgrade(&app_state);
  568        move |_: &OpenFiles, cx: &mut App| {
  569            let directories = cx.can_select_mixed_files_and_dirs();
  570            if let Some(app_state) = app_state.upgrade() {
  571                prompt_and_open_paths(
  572                    app_state,
  573                    PathPromptOptions {
  574                        files: true,
  575                        directories,
  576                        multiple: true,
  577                        prompt: None,
  578                    },
  579                    cx,
  580                );
  581            }
  582        }
  583    });
  584}
  585
  586type BuildProjectItemFn =
  587    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  588
  589type BuildProjectItemForPathFn =
  590    fn(
  591        &Entity<Project>,
  592        &ProjectPath,
  593        &mut Window,
  594        &mut App,
  595    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  596
  597#[derive(Clone, Default)]
  598struct ProjectItemRegistry {
  599    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  600    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  601}
  602
  603impl ProjectItemRegistry {
  604    fn register<T: ProjectItem>(&mut self) {
  605        self.build_project_item_fns_by_type.insert(
  606            TypeId::of::<T::Item>(),
  607            |item, project, pane, window, cx| {
  608                let item = item.downcast().unwrap();
  609                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  610                    as Box<dyn ItemHandle>
  611            },
  612        );
  613        self.build_project_item_for_path_fns
  614            .push(|project, project_path, window, cx| {
  615                let project_item =
  616                    <T::Item as project::ProjectItem>::try_open(project, project_path, cx)?;
  617                let project = project.clone();
  618                Some(window.spawn(cx, async move |cx| {
  619                    let project_item = project_item.await?;
  620                    let project_entry_id: Option<ProjectEntryId> =
  621                        project_item.read_with(cx, project::ProjectItem::entry_id)?;
  622                    let build_workspace_item = Box::new(
  623                        |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  624                            Box::new(cx.new(|cx| {
  625                                T::for_project_item(project, Some(pane), project_item, window, cx)
  626                            })) as Box<dyn ItemHandle>
  627                        },
  628                    ) as Box<_>;
  629                    Ok((project_entry_id, build_workspace_item))
  630                }))
  631            });
  632    }
  633
  634    fn open_path(
  635        &self,
  636        project: &Entity<Project>,
  637        path: &ProjectPath,
  638        window: &mut Window,
  639        cx: &mut App,
  640    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  641        let Some(open_project_item) = self
  642            .build_project_item_for_path_fns
  643            .iter()
  644            .rev()
  645            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  646        else {
  647            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  648        };
  649        open_project_item
  650    }
  651
  652    fn build_item<T: project::ProjectItem>(
  653        &self,
  654        item: Entity<T>,
  655        project: Entity<Project>,
  656        pane: Option<&Pane>,
  657        window: &mut Window,
  658        cx: &mut App,
  659    ) -> Option<Box<dyn ItemHandle>> {
  660        let build = self
  661            .build_project_item_fns_by_type
  662            .get(&TypeId::of::<T>())?;
  663        Some(build(item.into_any(), project, pane, window, cx))
  664    }
  665}
  666
  667type WorkspaceItemBuilder =
  668    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  669
  670impl Global for ProjectItemRegistry {}
  671
  672/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  673/// items will get a chance to open the file, starting from the project item that
  674/// was added last.
  675pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  676    cx.default_global::<ProjectItemRegistry>().register::<I>();
  677}
  678
  679#[derive(Default)]
  680pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  681
  682struct FollowableViewDescriptor {
  683    from_state_proto: fn(
  684        Entity<Workspace>,
  685        ViewId,
  686        &mut Option<proto::view::Variant>,
  687        &mut Window,
  688        &mut App,
  689    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  690    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  691}
  692
  693impl Global for FollowableViewRegistry {}
  694
  695impl FollowableViewRegistry {
  696    pub fn register<I: FollowableItem>(cx: &mut App) {
  697        cx.default_global::<Self>().0.insert(
  698            TypeId::of::<I>(),
  699            FollowableViewDescriptor {
  700                from_state_proto: |workspace, id, state, window, cx| {
  701                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  702                        cx.foreground_executor()
  703                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  704                    })
  705                },
  706                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  707            },
  708        );
  709    }
  710
  711    pub fn from_state_proto(
  712        workspace: Entity<Workspace>,
  713        view_id: ViewId,
  714        mut state: Option<proto::view::Variant>,
  715        window: &mut Window,
  716        cx: &mut App,
  717    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  718        cx.update_default_global(|this: &mut Self, cx| {
  719            this.0.values().find_map(|descriptor| {
  720                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  721            })
  722        })
  723    }
  724
  725    pub fn to_followable_view(
  726        view: impl Into<AnyView>,
  727        cx: &App,
  728    ) -> Option<Box<dyn FollowableItemHandle>> {
  729        let this = cx.try_global::<Self>()?;
  730        let view = view.into();
  731        let descriptor = this.0.get(&view.entity_type())?;
  732        Some((descriptor.to_followable_view)(&view))
  733    }
  734}
  735
  736#[derive(Copy, Clone)]
  737struct SerializableItemDescriptor {
  738    deserialize: fn(
  739        Entity<Project>,
  740        WeakEntity<Workspace>,
  741        WorkspaceId,
  742        ItemId,
  743        &mut Window,
  744        &mut Context<Pane>,
  745    ) -> Task<Result<Box<dyn ItemHandle>>>,
  746    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  747    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  748}
  749
  750#[derive(Default)]
  751struct SerializableItemRegistry {
  752    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  753    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  754}
  755
  756impl Global for SerializableItemRegistry {}
  757
  758impl SerializableItemRegistry {
  759    fn deserialize(
  760        item_kind: &str,
  761        project: Entity<Project>,
  762        workspace: WeakEntity<Workspace>,
  763        workspace_id: WorkspaceId,
  764        item_item: ItemId,
  765        window: &mut Window,
  766        cx: &mut Context<Pane>,
  767    ) -> Task<Result<Box<dyn ItemHandle>>> {
  768        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  769            return Task::ready(Err(anyhow!(
  770                "cannot deserialize {}, descriptor not found",
  771                item_kind
  772            )));
  773        };
  774
  775        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  776    }
  777
  778    fn cleanup(
  779        item_kind: &str,
  780        workspace_id: WorkspaceId,
  781        loaded_items: Vec<ItemId>,
  782        window: &mut Window,
  783        cx: &mut App,
  784    ) -> Task<Result<()>> {
  785        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  786            return Task::ready(Err(anyhow!(
  787                "cannot cleanup {}, descriptor not found",
  788                item_kind
  789            )));
  790        };
  791
  792        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  793    }
  794
  795    fn view_to_serializable_item_handle(
  796        view: AnyView,
  797        cx: &App,
  798    ) -> Option<Box<dyn SerializableItemHandle>> {
  799        let this = cx.try_global::<Self>()?;
  800        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  801        Some((descriptor.view_to_serializable_item)(view))
  802    }
  803
  804    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  805        let this = cx.try_global::<Self>()?;
  806        this.descriptors_by_kind.get(item_kind).copied()
  807    }
  808}
  809
  810pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  811    let serialized_item_kind = I::serialized_item_kind();
  812
  813    let registry = cx.default_global::<SerializableItemRegistry>();
  814    let descriptor = SerializableItemDescriptor {
  815        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  816            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  817            cx.foreground_executor()
  818                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  819        },
  820        cleanup: |workspace_id, loaded_items, window, cx| {
  821            I::cleanup(workspace_id, loaded_items, window, cx)
  822        },
  823        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  824    };
  825    registry
  826        .descriptors_by_kind
  827        .insert(Arc::from(serialized_item_kind), descriptor);
  828    registry
  829        .descriptors_by_type
  830        .insert(TypeId::of::<I>(), descriptor);
  831}
  832
  833pub struct AppState {
  834    pub languages: Arc<LanguageRegistry>,
  835    pub client: Arc<Client>,
  836    pub user_store: Entity<UserStore>,
  837    pub workspace_store: Entity<WorkspaceStore>,
  838    pub fs: Arc<dyn fs::Fs>,
  839    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  840    pub node_runtime: NodeRuntime,
  841    pub session: Entity<AppSession>,
  842}
  843
  844struct GlobalAppState(Weak<AppState>);
  845
  846impl Global for GlobalAppState {}
  847
  848pub struct WorkspaceStore {
  849    workspaces: HashSet<WindowHandle<Workspace>>,
  850    client: Arc<Client>,
  851    _subscriptions: Vec<client::Subscription>,
  852}
  853
  854#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  855pub enum CollaboratorId {
  856    PeerId(PeerId),
  857    Agent,
  858}
  859
  860impl From<PeerId> for CollaboratorId {
  861    fn from(peer_id: PeerId) -> Self {
  862        CollaboratorId::PeerId(peer_id)
  863    }
  864}
  865
  866impl From<&PeerId> for CollaboratorId {
  867    fn from(peer_id: &PeerId) -> Self {
  868        CollaboratorId::PeerId(*peer_id)
  869    }
  870}
  871
  872#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  873struct Follower {
  874    project_id: Option<u64>,
  875    peer_id: PeerId,
  876}
  877
  878impl AppState {
  879    #[track_caller]
  880    pub fn global(cx: &App) -> Weak<Self> {
  881        cx.global::<GlobalAppState>().0.clone()
  882    }
  883    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  884        cx.try_global::<GlobalAppState>()
  885            .map(|state| state.0.clone())
  886    }
  887    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  888        cx.set_global(GlobalAppState(state));
  889    }
  890
  891    #[cfg(any(test, feature = "test-support"))]
  892    pub fn test(cx: &mut App) -> Arc<Self> {
  893        use node_runtime::NodeRuntime;
  894        use session::Session;
  895        use settings::SettingsStore;
  896
  897        if !cx.has_global::<SettingsStore>() {
  898            let settings_store = SettingsStore::test(cx);
  899            cx.set_global(settings_store);
  900        }
  901
  902        let fs = fs::FakeFs::new(cx.background_executor().clone());
  903        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  904        let clock = Arc::new(clock::FakeSystemClock::new());
  905        let http_client = http_client::FakeHttpClient::with_404_response();
  906        let client = Client::new(clock, http_client.clone(), cx);
  907        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  908        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  909        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  910
  911        theme::init(theme::LoadThemes::JustBase, cx);
  912        client::init(&client, cx);
  913        crate::init_settings(cx);
  914
  915        Arc::new(Self {
  916            client,
  917            fs,
  918            languages,
  919            user_store,
  920            workspace_store,
  921            node_runtime: NodeRuntime::unavailable(),
  922            build_window_options: |_, _| Default::default(),
  923            session,
  924        })
  925    }
  926}
  927
  928struct DelayedDebouncedEditAction {
  929    task: Option<Task<()>>,
  930    cancel_channel: Option<oneshot::Sender<()>>,
  931}
  932
  933impl DelayedDebouncedEditAction {
  934    fn new() -> DelayedDebouncedEditAction {
  935        DelayedDebouncedEditAction {
  936            task: None,
  937            cancel_channel: None,
  938        }
  939    }
  940
  941    fn fire_new<F>(
  942        &mut self,
  943        delay: Duration,
  944        window: &mut Window,
  945        cx: &mut Context<Workspace>,
  946        func: F,
  947    ) where
  948        F: 'static
  949            + Send
  950            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
  951    {
  952        if let Some(channel) = self.cancel_channel.take() {
  953            _ = channel.send(());
  954        }
  955
  956        let (sender, mut receiver) = oneshot::channel::<()>();
  957        self.cancel_channel = Some(sender);
  958
  959        let previous_task = self.task.take();
  960        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
  961            let mut timer = cx.background_executor().timer(delay).fuse();
  962            if let Some(previous_task) = previous_task {
  963                previous_task.await;
  964            }
  965
  966            futures::select_biased! {
  967                _ = receiver => return,
  968                    _ = timer => {}
  969            }
  970
  971            if let Some(result) = workspace
  972                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
  973                .log_err()
  974            {
  975                result.await.log_err();
  976            }
  977        }));
  978    }
  979}
  980
  981pub enum Event {
  982    PaneAdded(Entity<Pane>),
  983    PaneRemoved,
  984    ItemAdded {
  985        item: Box<dyn ItemHandle>,
  986    },
  987    ItemRemoved,
  988    ActiveItemChanged,
  989    UserSavedItem {
  990        pane: WeakEntity<Pane>,
  991        item: Box<dyn WeakItemHandle>,
  992        save_intent: SaveIntent,
  993    },
  994    ContactRequestedJoin(u64),
  995    WorkspaceCreated(WeakEntity<Workspace>),
  996    OpenBundledFile {
  997        text: Cow<'static, str>,
  998        title: &'static str,
  999        language: &'static str,
 1000    },
 1001    ZoomChanged,
 1002    ModalOpened,
 1003    ClearActivityIndicator,
 1004}
 1005
 1006#[derive(Debug)]
 1007pub enum OpenVisible {
 1008    All,
 1009    None,
 1010    OnlyFiles,
 1011    OnlyDirectories,
 1012}
 1013
 1014enum WorkspaceLocation {
 1015    // Valid local paths or SSH project to serialize
 1016    Location(SerializedWorkspaceLocation),
 1017    // No valid location found hence clear session id
 1018    DetachFromSession,
 1019    // No valid location found to serialize
 1020    None,
 1021}
 1022
 1023type PromptForNewPath = Box<
 1024    dyn Fn(
 1025        &mut Workspace,
 1026        DirectoryLister,
 1027        &mut Window,
 1028        &mut Context<Workspace>,
 1029    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1030>;
 1031
 1032type PromptForOpenPath = Box<
 1033    dyn Fn(
 1034        &mut Workspace,
 1035        DirectoryLister,
 1036        &mut Window,
 1037        &mut Context<Workspace>,
 1038    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1039>;
 1040
 1041#[derive(Default)]
 1042struct DispatchingKeystrokes {
 1043    dispatched: HashSet<Vec<Keystroke>>,
 1044    queue: VecDeque<Keystroke>,
 1045    task: Option<Shared<Task<()>>>,
 1046}
 1047
 1048/// Collects everything project-related for a certain window opened.
 1049/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1050///
 1051/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1052/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1053/// that can be used to register a global action to be triggered from any place in the window.
 1054pub struct Workspace {
 1055    weak_self: WeakEntity<Self>,
 1056    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1057    zoomed: Option<AnyWeakView>,
 1058    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1059    zoomed_position: Option<DockPosition>,
 1060    center: PaneGroup,
 1061    left_dock: Entity<Dock>,
 1062    bottom_dock: Entity<Dock>,
 1063    right_dock: Entity<Dock>,
 1064    panes: Vec<Entity<Pane>>,
 1065    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1066    active_pane: Entity<Pane>,
 1067    last_active_center_pane: Option<WeakEntity<Pane>>,
 1068    last_active_view_id: Option<proto::ViewId>,
 1069    status_bar: Entity<StatusBar>,
 1070    modal_layer: Entity<ModalLayer>,
 1071    toast_layer: Entity<ToastLayer>,
 1072    titlebar_item: Option<AnyView>,
 1073    notifications: Notifications,
 1074    suppressed_notifications: HashSet<NotificationId>,
 1075    project: Entity<Project>,
 1076    follower_states: HashMap<CollaboratorId, FollowerState>,
 1077    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1078    window_edited: bool,
 1079    last_window_title: Option<String>,
 1080    dirty_items: HashMap<EntityId, Subscription>,
 1081    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1082    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1083    database_id: Option<WorkspaceId>,
 1084    app_state: Arc<AppState>,
 1085    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1086    _subscriptions: Vec<Subscription>,
 1087    _apply_leader_updates: Task<Result<()>>,
 1088    _observe_current_user: Task<Result<()>>,
 1089    _schedule_serialize_workspace: Option<Task<()>>,
 1090    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1091    pane_history_timestamp: Arc<AtomicUsize>,
 1092    bounds: Bounds<Pixels>,
 1093    pub centered_layout: bool,
 1094    bounds_save_task_queued: Option<Task<()>>,
 1095    on_prompt_for_new_path: Option<PromptForNewPath>,
 1096    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1097    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1098    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1099    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1100    serialized_ssh_project: Option<SerializedSshProject>,
 1101    _items_serializer: Task<Result<()>>,
 1102    session_id: Option<String>,
 1103    scheduled_tasks: Vec<Task<()>>,
 1104}
 1105
 1106impl EventEmitter<Event> for Workspace {}
 1107
 1108#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1109pub struct ViewId {
 1110    pub creator: CollaboratorId,
 1111    pub id: u64,
 1112}
 1113
 1114pub struct FollowerState {
 1115    center_pane: Entity<Pane>,
 1116    dock_pane: Option<Entity<Pane>>,
 1117    active_view_id: Option<ViewId>,
 1118    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1119}
 1120
 1121struct FollowerView {
 1122    view: Box<dyn FollowableItemHandle>,
 1123    location: Option<proto::PanelId>,
 1124}
 1125
 1126impl Workspace {
 1127    const DEFAULT_PADDING: f32 = 0.2;
 1128    const MAX_PADDING: f32 = 0.4;
 1129
 1130    pub fn new(
 1131        workspace_id: Option<WorkspaceId>,
 1132        project: Entity<Project>,
 1133        app_state: Arc<AppState>,
 1134        window: &mut Window,
 1135        cx: &mut Context<Self>,
 1136    ) -> Self {
 1137        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1138            match event {
 1139                project::Event::RemoteIdChanged(_) => {
 1140                    this.update_window_title(window, cx);
 1141                }
 1142
 1143                project::Event::CollaboratorLeft(peer_id) => {
 1144                    this.collaborator_left(*peer_id, window, cx);
 1145                }
 1146
 1147                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1148                    this.update_window_title(window, cx);
 1149                    this.update_ssh_paths(cx);
 1150                    this.serialize_ssh_paths(window, cx);
 1151                    this.serialize_workspace(window, cx);
 1152                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1153                    this.update_history(cx);
 1154                }
 1155
 1156                project::Event::DisconnectedFromHost => {
 1157                    this.update_window_edited(window, cx);
 1158                    let leaders_to_unfollow =
 1159                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1160                    for leader_id in leaders_to_unfollow {
 1161                        this.unfollow(leader_id, window, cx);
 1162                    }
 1163                }
 1164
 1165                project::Event::DisconnectedFromSshRemote => {
 1166                    this.update_window_edited(window, cx);
 1167                }
 1168
 1169                project::Event::Closed => {
 1170                    window.remove_window();
 1171                }
 1172
 1173                project::Event::DeletedEntry(_, entry_id) => {
 1174                    for pane in this.panes.iter() {
 1175                        pane.update(cx, |pane, cx| {
 1176                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1177                        });
 1178                    }
 1179                }
 1180
 1181                project::Event::Toast {
 1182                    notification_id,
 1183                    message,
 1184                } => this.show_notification(
 1185                    NotificationId::named(notification_id.clone()),
 1186                    cx,
 1187                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1188                ),
 1189
 1190                project::Event::HideToast { notification_id } => {
 1191                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1192                }
 1193
 1194                project::Event::LanguageServerPrompt(request) => {
 1195                    struct LanguageServerPrompt;
 1196
 1197                    let mut hasher = DefaultHasher::new();
 1198                    request.lsp_name.as_str().hash(&mut hasher);
 1199                    let id = hasher.finish();
 1200
 1201                    this.show_notification(
 1202                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1203                        cx,
 1204                        |cx| {
 1205                            cx.new(|cx| {
 1206                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1207                            })
 1208                        },
 1209                    );
 1210                }
 1211
 1212                project::Event::AgentLocationChanged => {
 1213                    this.handle_agent_location_changed(window, cx)
 1214                }
 1215
 1216                _ => {}
 1217            }
 1218            cx.notify()
 1219        })
 1220        .detach();
 1221
 1222        cx.subscribe_in(
 1223            &project.read(cx).breakpoint_store(),
 1224            window,
 1225            |workspace, _, event, window, cx| match event {
 1226                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1227                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1228                    workspace.serialize_workspace(window, cx);
 1229                }
 1230                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1231            },
 1232        )
 1233        .detach();
 1234
 1235        cx.on_focus_lost(window, |this, window, cx| {
 1236            let focus_handle = this.focus_handle(cx);
 1237            window.focus(&focus_handle);
 1238        })
 1239        .detach();
 1240
 1241        let weak_handle = cx.entity().downgrade();
 1242        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1243
 1244        let center_pane = cx.new(|cx| {
 1245            let mut center_pane = Pane::new(
 1246                weak_handle.clone(),
 1247                project.clone(),
 1248                pane_history_timestamp.clone(),
 1249                None,
 1250                NewFile.boxed_clone(),
 1251                window,
 1252                cx,
 1253            );
 1254            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1255            center_pane
 1256        });
 1257        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1258            .detach();
 1259
 1260        window.focus(&center_pane.focus_handle(cx));
 1261
 1262        cx.emit(Event::PaneAdded(center_pane.clone()));
 1263
 1264        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1265        app_state.workspace_store.update(cx, |store, _| {
 1266            store.workspaces.insert(window_handle);
 1267        });
 1268
 1269        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1270        let mut connection_status = app_state.client.status();
 1271        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1272            current_user.next().await;
 1273            connection_status.next().await;
 1274            let mut stream =
 1275                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1276
 1277            while stream.recv().await.is_some() {
 1278                this.update(cx, |_, cx| cx.notify())?;
 1279            }
 1280            anyhow::Ok(())
 1281        });
 1282
 1283        // All leader updates are enqueued and then processed in a single task, so
 1284        // that each asynchronous operation can be run in order.
 1285        let (leader_updates_tx, mut leader_updates_rx) =
 1286            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1287        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1288            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1289                Self::process_leader_update(&this, leader_id, update, cx)
 1290                    .await
 1291                    .log_err();
 1292            }
 1293
 1294            Ok(())
 1295        });
 1296
 1297        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1298        let modal_layer = cx.new(|_| ModalLayer::new());
 1299        let toast_layer = cx.new(|_| ToastLayer::new());
 1300        cx.subscribe(
 1301            &modal_layer,
 1302            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1303                cx.emit(Event::ModalOpened);
 1304            },
 1305        )
 1306        .detach();
 1307
 1308        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1309        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1310        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1311        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1312        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1313        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1314        let status_bar = cx.new(|cx| {
 1315            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1316            status_bar.add_left_item(left_dock_buttons, window, cx);
 1317            status_bar.add_right_item(right_dock_buttons, window, cx);
 1318            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1319            status_bar
 1320        });
 1321
 1322        let session_id = app_state.session.read(cx).id().to_owned();
 1323
 1324        let mut active_call = None;
 1325        if let Some(call) = ActiveCall::try_global(cx) {
 1326            let call = call.clone();
 1327            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1328            active_call = Some((call, subscriptions));
 1329        }
 1330
 1331        let (serializable_items_tx, serializable_items_rx) =
 1332            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1333        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1334            Self::serialize_items(&this, serializable_items_rx, cx).await
 1335        });
 1336
 1337        let subscriptions = vec![
 1338            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1339            cx.observe_window_bounds(window, move |this, window, cx| {
 1340                if this.bounds_save_task_queued.is_some() {
 1341                    return;
 1342                }
 1343                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1344                    cx.background_executor()
 1345                        .timer(Duration::from_millis(100))
 1346                        .await;
 1347                    this.update_in(cx, |this, window, cx| {
 1348                        if let Some(display) = window.display(cx)
 1349                            && let Ok(display_uuid) = display.uuid() {
 1350                                let window_bounds = window.inner_window_bounds();
 1351                                if let Some(database_id) = workspace_id {
 1352                                    cx.background_executor()
 1353                                        .spawn(DB.set_window_open_status(
 1354                                            database_id,
 1355                                            SerializedWindowBounds(window_bounds),
 1356                                            display_uuid,
 1357                                        ))
 1358                                        .detach_and_log_err(cx);
 1359                                }
 1360                            }
 1361                        this.bounds_save_task_queued.take();
 1362                    })
 1363                    .ok();
 1364                }));
 1365                cx.notify();
 1366            }),
 1367            cx.observe_window_appearance(window, |_, window, cx| {
 1368                let window_appearance = window.appearance();
 1369
 1370                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1371
 1372                ThemeSettings::reload_current_theme(cx);
 1373                ThemeSettings::reload_current_icon_theme(cx);
 1374            }),
 1375            cx.on_release(move |this, cx| {
 1376                this.app_state.workspace_store.update(cx, move |store, _| {
 1377                    store.workspaces.remove(&window_handle.clone());
 1378                })
 1379            }),
 1380        ];
 1381
 1382        cx.defer_in(window, |this, window, cx| {
 1383            this.update_window_title(window, cx);
 1384            this.show_initial_notifications(cx);
 1385        });
 1386        Workspace {
 1387            weak_self: weak_handle.clone(),
 1388            zoomed: None,
 1389            zoomed_position: None,
 1390            previous_dock_drag_coordinates: None,
 1391            center: PaneGroup::new(center_pane.clone()),
 1392            panes: vec![center_pane.clone()],
 1393            panes_by_item: Default::default(),
 1394            active_pane: center_pane.clone(),
 1395            last_active_center_pane: Some(center_pane.downgrade()),
 1396            last_active_view_id: None,
 1397            status_bar,
 1398            modal_layer,
 1399            toast_layer,
 1400            titlebar_item: None,
 1401            notifications: Notifications::default(),
 1402            suppressed_notifications: HashSet::default(),
 1403            left_dock,
 1404            bottom_dock,
 1405            right_dock,
 1406            project: project.clone(),
 1407            follower_states: Default::default(),
 1408            last_leaders_by_pane: Default::default(),
 1409            dispatching_keystrokes: Default::default(),
 1410            window_edited: false,
 1411            last_window_title: None,
 1412            dirty_items: Default::default(),
 1413            active_call,
 1414            database_id: workspace_id,
 1415            app_state,
 1416            _observe_current_user,
 1417            _apply_leader_updates,
 1418            _schedule_serialize_workspace: None,
 1419            _schedule_serialize_ssh_paths: None,
 1420            leader_updates_tx,
 1421            _subscriptions: subscriptions,
 1422            pane_history_timestamp,
 1423            workspace_actions: Default::default(),
 1424            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1425            bounds: Default::default(),
 1426            centered_layout: false,
 1427            bounds_save_task_queued: None,
 1428            on_prompt_for_new_path: None,
 1429            on_prompt_for_open_path: None,
 1430            terminal_provider: None,
 1431            debugger_provider: None,
 1432            serializable_items_tx,
 1433            _items_serializer,
 1434            session_id: Some(session_id),
 1435            serialized_ssh_project: None,
 1436            scheduled_tasks: Vec::new(),
 1437        }
 1438    }
 1439
 1440    pub fn new_local(
 1441        abs_paths: Vec<PathBuf>,
 1442        app_state: Arc<AppState>,
 1443        requesting_window: Option<WindowHandle<Workspace>>,
 1444        env: Option<HashMap<String, String>>,
 1445        cx: &mut App,
 1446    ) -> Task<
 1447        anyhow::Result<(
 1448            WindowHandle<Workspace>,
 1449            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1450        )>,
 1451    > {
 1452        let project_handle = Project::local(
 1453            app_state.client.clone(),
 1454            app_state.node_runtime.clone(),
 1455            app_state.user_store.clone(),
 1456            app_state.languages.clone(),
 1457            app_state.fs.clone(),
 1458            env,
 1459            cx,
 1460        );
 1461
 1462        cx.spawn(async move |cx| {
 1463            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1464            for path in abs_paths.into_iter() {
 1465                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1466                    paths_to_open.push(canonical)
 1467                } else {
 1468                    paths_to_open.push(path)
 1469                }
 1470            }
 1471
 1472            let serialized_workspace =
 1473                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1474
 1475            let workspace_location = serialized_workspace
 1476                .as_ref()
 1477                .map(|ws| &ws.location)
 1478                .and_then(|loc| match loc {
 1479                    SerializedWorkspaceLocation::Local(_, order) => {
 1480                        Some((loc.sorted_paths(), order.order()))
 1481                    }
 1482                    _ => None,
 1483                });
 1484
 1485            if let Some((paths, order)) = workspace_location {
 1486                paths_to_open = paths.iter().cloned().collect();
 1487
 1488                if order.iter().enumerate().any(|(i, &j)| i != j) {
 1489                    project_handle
 1490                        .update(cx, |project, cx| {
 1491                            project.set_worktrees_reordered(true, cx);
 1492                        })
 1493                        .log_err();
 1494                }
 1495            }
 1496
 1497            // Get project paths for all of the abs_paths
 1498            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1499                Vec::with_capacity(paths_to_open.len());
 1500
 1501            for path in paths_to_open.into_iter() {
 1502                if let Some((_, project_entry)) = cx
 1503                    .update(|cx| {
 1504                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1505                    })?
 1506                    .await
 1507                    .log_err()
 1508                {
 1509                    project_paths.push((path, Some(project_entry)));
 1510                } else {
 1511                    project_paths.push((path, None));
 1512                }
 1513            }
 1514
 1515            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1516                serialized_workspace.id
 1517            } else {
 1518                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1519            };
 1520
 1521            let toolchains = DB.toolchains(workspace_id).await?;
 1522
 1523            for (toolchain, worktree_id, path) in toolchains {
 1524                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1525                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1526                    continue;
 1527                }
 1528
 1529                project_handle
 1530                    .update(cx, |this, cx| {
 1531                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1532                    })?
 1533                    .await;
 1534            }
 1535            let window = if let Some(window) = requesting_window {
 1536                let centered_layout = serialized_workspace
 1537                    .as_ref()
 1538                    .map(|w| w.centered_layout)
 1539                    .unwrap_or(false);
 1540
 1541                cx.update_window(window.into(), |_, window, cx| {
 1542                    window.replace_root(cx, |window, cx| {
 1543                        let mut workspace = Workspace::new(
 1544                            Some(workspace_id),
 1545                            project_handle.clone(),
 1546                            app_state.clone(),
 1547                            window,
 1548                            cx,
 1549                        );
 1550
 1551                        workspace.centered_layout = centered_layout;
 1552                        workspace
 1553                    });
 1554                })?;
 1555                window
 1556            } else {
 1557                let window_bounds_override = window_bounds_env_override();
 1558
 1559                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1560                    (Some(WindowBounds::Windowed(bounds)), None)
 1561                } else {
 1562                    let restorable_bounds = serialized_workspace
 1563                        .as_ref()
 1564                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1565                        .or_else(|| {
 1566                            let (display, window_bounds) = DB.last_window().log_err()?;
 1567                            Some((display?, window_bounds?))
 1568                        });
 1569
 1570                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1571                        (Some(serialized_status.0), Some(serialized_display))
 1572                    } else {
 1573                        (None, None)
 1574                    }
 1575                };
 1576
 1577                // Use the serialized workspace to construct the new window
 1578                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1579                options.window_bounds = window_bounds;
 1580                let centered_layout = serialized_workspace
 1581                    .as_ref()
 1582                    .map(|w| w.centered_layout)
 1583                    .unwrap_or(false);
 1584                cx.open_window(options, {
 1585                    let app_state = app_state.clone();
 1586                    let project_handle = project_handle.clone();
 1587                    move |window, cx| {
 1588                        cx.new(|cx| {
 1589                            let mut workspace = Workspace::new(
 1590                                Some(workspace_id),
 1591                                project_handle,
 1592                                app_state,
 1593                                window,
 1594                                cx,
 1595                            );
 1596                            workspace.centered_layout = centered_layout;
 1597                            workspace
 1598                        })
 1599                    }
 1600                })?
 1601            };
 1602
 1603            notify_if_database_failed(window, cx);
 1604            let opened_items = window
 1605                .update(cx, |_workspace, window, cx| {
 1606                    open_items(serialized_workspace, project_paths, window, cx)
 1607                })?
 1608                .await
 1609                .unwrap_or_default();
 1610
 1611            window
 1612                .update(cx, |workspace, window, cx| {
 1613                    window.activate_window();
 1614                    workspace.update_history(cx);
 1615                })
 1616                .log_err();
 1617            Ok((window, opened_items))
 1618        })
 1619    }
 1620
 1621    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1622        self.weak_self.clone()
 1623    }
 1624
 1625    pub fn left_dock(&self) -> &Entity<Dock> {
 1626        &self.left_dock
 1627    }
 1628
 1629    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1630        &self.bottom_dock
 1631    }
 1632
 1633    pub fn set_bottom_dock_layout(
 1634        &mut self,
 1635        layout: BottomDockLayout,
 1636        window: &mut Window,
 1637        cx: &mut Context<Self>,
 1638    ) {
 1639        let fs = self.project().read(cx).fs();
 1640        settings::update_settings_file::<WorkspaceSettings>(fs.clone(), cx, move |content, _cx| {
 1641            content.bottom_dock_layout = Some(layout);
 1642        });
 1643
 1644        cx.notify();
 1645        self.serialize_workspace(window, cx);
 1646    }
 1647
 1648    pub fn right_dock(&self) -> &Entity<Dock> {
 1649        &self.right_dock
 1650    }
 1651
 1652    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1653        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1654    }
 1655
 1656    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1657        match position {
 1658            DockPosition::Left => &self.left_dock,
 1659            DockPosition::Bottom => &self.bottom_dock,
 1660            DockPosition::Right => &self.right_dock,
 1661        }
 1662    }
 1663
 1664    pub fn is_edited(&self) -> bool {
 1665        self.window_edited
 1666    }
 1667
 1668    pub fn add_panel<T: Panel>(
 1669        &mut self,
 1670        panel: Entity<T>,
 1671        window: &mut Window,
 1672        cx: &mut Context<Self>,
 1673    ) {
 1674        let focus_handle = panel.panel_focus_handle(cx);
 1675        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1676            .detach();
 1677
 1678        let dock_position = panel.position(window, cx);
 1679        let dock = self.dock_at_position(dock_position);
 1680
 1681        dock.update(cx, |dock, cx| {
 1682            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1683        });
 1684    }
 1685
 1686    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1687        &self.status_bar
 1688    }
 1689
 1690    pub fn app_state(&self) -> &Arc<AppState> {
 1691        &self.app_state
 1692    }
 1693
 1694    pub fn user_store(&self) -> &Entity<UserStore> {
 1695        &self.app_state.user_store
 1696    }
 1697
 1698    pub fn project(&self) -> &Entity<Project> {
 1699        &self.project
 1700    }
 1701
 1702    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1703        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1704
 1705        for pane_handle in &self.panes {
 1706            let pane = pane_handle.read(cx);
 1707
 1708            for entry in pane.activation_history() {
 1709                history.insert(
 1710                    entry.entity_id,
 1711                    history
 1712                        .get(&entry.entity_id)
 1713                        .cloned()
 1714                        .unwrap_or(0)
 1715                        .max(entry.timestamp),
 1716                );
 1717            }
 1718        }
 1719
 1720        history
 1721    }
 1722
 1723    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1724        let mut recent_item: Option<Entity<T>> = None;
 1725        let mut recent_timestamp = 0;
 1726        for pane_handle in &self.panes {
 1727            let pane = pane_handle.read(cx);
 1728            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1729                pane.items().map(|item| (item.item_id(), item)).collect();
 1730            for entry in pane.activation_history() {
 1731                if entry.timestamp > recent_timestamp
 1732                    && let Some(&item) = item_map.get(&entry.entity_id)
 1733                        && let Some(typed_item) = item.act_as::<T>(cx) {
 1734                            recent_timestamp = entry.timestamp;
 1735                            recent_item = Some(typed_item);
 1736                        }
 1737            }
 1738        }
 1739        recent_item
 1740    }
 1741
 1742    pub fn recent_navigation_history_iter(
 1743        &self,
 1744        cx: &App,
 1745    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1746        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1747        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1748
 1749        for pane in &self.panes {
 1750            let pane = pane.read(cx);
 1751
 1752            pane.nav_history()
 1753                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1754                    if let Some(fs_path) = &fs_path {
 1755                        abs_paths_opened
 1756                            .entry(fs_path.clone())
 1757                            .or_default()
 1758                            .insert(project_path.clone());
 1759                    }
 1760                    let timestamp = entry.timestamp;
 1761                    match history.entry(project_path) {
 1762                        hash_map::Entry::Occupied(mut entry) => {
 1763                            let (_, old_timestamp) = entry.get();
 1764                            if &timestamp > old_timestamp {
 1765                                entry.insert((fs_path, timestamp));
 1766                            }
 1767                        }
 1768                        hash_map::Entry::Vacant(entry) => {
 1769                            entry.insert((fs_path, timestamp));
 1770                        }
 1771                    }
 1772                });
 1773
 1774            if let Some(item) = pane.active_item()
 1775                && let Some(project_path) = item.project_path(cx) {
 1776                    let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1777
 1778                    if let Some(fs_path) = &fs_path {
 1779                        abs_paths_opened
 1780                            .entry(fs_path.clone())
 1781                            .or_default()
 1782                            .insert(project_path.clone());
 1783                    }
 1784
 1785                    history.insert(project_path, (fs_path, std::usize::MAX));
 1786                }
 1787        }
 1788
 1789        history
 1790            .into_iter()
 1791            .sorted_by_key(|(_, (_, order))| *order)
 1792            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1793            .rev()
 1794            .filter(move |(history_path, abs_path)| {
 1795                let latest_project_path_opened = abs_path
 1796                    .as_ref()
 1797                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1798                    .and_then(|project_paths| {
 1799                        project_paths
 1800                            .iter()
 1801                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1802                    });
 1803
 1804                latest_project_path_opened.map_or(true, |path| path == history_path)
 1805            })
 1806    }
 1807
 1808    pub fn recent_navigation_history(
 1809        &self,
 1810        limit: Option<usize>,
 1811        cx: &App,
 1812    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1813        self.recent_navigation_history_iter(cx)
 1814            .take(limit.unwrap_or(usize::MAX))
 1815            .collect()
 1816    }
 1817
 1818    fn navigate_history(
 1819        &mut self,
 1820        pane: WeakEntity<Pane>,
 1821        mode: NavigationMode,
 1822        window: &mut Window,
 1823        cx: &mut Context<Workspace>,
 1824    ) -> Task<Result<()>> {
 1825        let to_load = if let Some(pane) = pane.upgrade() {
 1826            pane.update(cx, |pane, cx| {
 1827                window.focus(&pane.focus_handle(cx));
 1828                loop {
 1829                    // Retrieve the weak item handle from the history.
 1830                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1831
 1832                    // If the item is still present in this pane, then activate it.
 1833                    if let Some(index) = entry
 1834                        .item
 1835                        .upgrade()
 1836                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1837                    {
 1838                        let prev_active_item_index = pane.active_item_index();
 1839                        pane.nav_history_mut().set_mode(mode);
 1840                        pane.activate_item(index, true, true, window, cx);
 1841                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1842
 1843                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1844                        if let Some(data) = entry.data {
 1845                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1846                        }
 1847
 1848                        if navigated {
 1849                            break None;
 1850                        }
 1851                    } else {
 1852                        // If the item is no longer present in this pane, then retrieve its
 1853                        // path info in order to reopen it.
 1854                        break pane
 1855                            .nav_history()
 1856                            .path_for_item(entry.item.id())
 1857                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1858                    }
 1859                }
 1860            })
 1861        } else {
 1862            None
 1863        };
 1864
 1865        if let Some((project_path, abs_path, entry)) = to_load {
 1866            // If the item was no longer present, then load it again from its previous path, first try the local path
 1867            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1868
 1869            cx.spawn_in(window, async move  |workspace, cx| {
 1870                let open_by_project_path = open_by_project_path.await;
 1871                let mut navigated = false;
 1872                match open_by_project_path
 1873                    .with_context(|| format!("Navigating to {project_path:?}"))
 1874                {
 1875                    Ok((project_entry_id, build_item)) => {
 1876                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1877                            pane.nav_history_mut().set_mode(mode);
 1878                            pane.active_item().map(|p| p.item_id())
 1879                        })?;
 1880
 1881                        pane.update_in(cx, |pane, window, cx| {
 1882                            let item = pane.open_item(
 1883                                project_entry_id,
 1884                                project_path,
 1885                                true,
 1886                                entry.is_preview,
 1887                                true,
 1888                                None,
 1889                                window, cx,
 1890                                build_item,
 1891                            );
 1892                            navigated |= Some(item.item_id()) != prev_active_item_id;
 1893                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1894                            if let Some(data) = entry.data {
 1895                                navigated |= item.navigate(data, window, cx);
 1896                            }
 1897                        })?;
 1898                    }
 1899                    Err(open_by_project_path_e) => {
 1900                        // Fall back to opening by abs path, in case an external file was opened and closed,
 1901                        // and its worktree is now dropped
 1902                        if let Some(abs_path) = abs_path {
 1903                            let prev_active_item_id = pane.update(cx, |pane, _| {
 1904                                pane.nav_history_mut().set_mode(mode);
 1905                                pane.active_item().map(|p| p.item_id())
 1906                            })?;
 1907                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 1908                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 1909                            })?;
 1910                            match open_by_abs_path
 1911                                .await
 1912                                .with_context(|| format!("Navigating to {abs_path:?}"))
 1913                            {
 1914                                Ok(item) => {
 1915                                    pane.update_in(cx, |pane, window, cx| {
 1916                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 1917                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1918                                        if let Some(data) = entry.data {
 1919                                            navigated |= item.navigate(data, window, cx);
 1920                                        }
 1921                                    })?;
 1922                                }
 1923                                Err(open_by_abs_path_e) => {
 1924                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 1925                                }
 1926                            }
 1927                        }
 1928                    }
 1929                }
 1930
 1931                if !navigated {
 1932                    workspace
 1933                        .update_in(cx, |workspace, window, cx| {
 1934                            Self::navigate_history(workspace, pane, mode, window, cx)
 1935                        })?
 1936                        .await?;
 1937                }
 1938
 1939                Ok(())
 1940            })
 1941        } else {
 1942            Task::ready(Ok(()))
 1943        }
 1944    }
 1945
 1946    pub fn go_back(
 1947        &mut self,
 1948        pane: WeakEntity<Pane>,
 1949        window: &mut Window,
 1950        cx: &mut Context<Workspace>,
 1951    ) -> Task<Result<()>> {
 1952        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 1953    }
 1954
 1955    pub fn go_forward(
 1956        &mut self,
 1957        pane: WeakEntity<Pane>,
 1958        window: &mut Window,
 1959        cx: &mut Context<Workspace>,
 1960    ) -> Task<Result<()>> {
 1961        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 1962    }
 1963
 1964    pub fn reopen_closed_item(
 1965        &mut self,
 1966        window: &mut Window,
 1967        cx: &mut Context<Workspace>,
 1968    ) -> Task<Result<()>> {
 1969        self.navigate_history(
 1970            self.active_pane().downgrade(),
 1971            NavigationMode::ReopeningClosedItem,
 1972            window,
 1973            cx,
 1974        )
 1975    }
 1976
 1977    pub fn client(&self) -> &Arc<Client> {
 1978        &self.app_state.client
 1979    }
 1980
 1981    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 1982        self.titlebar_item = Some(item);
 1983        cx.notify();
 1984    }
 1985
 1986    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 1987        self.on_prompt_for_new_path = Some(prompt)
 1988    }
 1989
 1990    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 1991        self.on_prompt_for_open_path = Some(prompt)
 1992    }
 1993
 1994    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 1995        self.terminal_provider = Some(Box::new(provider));
 1996    }
 1997
 1998    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 1999        self.debugger_provider = Some(Arc::new(provider));
 2000    }
 2001
 2002    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2003        self.debugger_provider.clone()
 2004    }
 2005
 2006    pub fn serialized_ssh_project(&self) -> Option<SerializedSshProject> {
 2007        self.serialized_ssh_project.clone()
 2008    }
 2009
 2010    pub fn set_serialized_ssh_project(&mut self, serialized_ssh_project: SerializedSshProject) {
 2011        self.serialized_ssh_project = Some(serialized_ssh_project);
 2012    }
 2013
 2014    pub fn prompt_for_open_path(
 2015        &mut self,
 2016        path_prompt_options: PathPromptOptions,
 2017        lister: DirectoryLister,
 2018        window: &mut Window,
 2019        cx: &mut Context<Self>,
 2020    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2021        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2022            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2023            let rx = prompt(self, lister, window, cx);
 2024            self.on_prompt_for_open_path = Some(prompt);
 2025            rx
 2026        } else {
 2027            let (tx, rx) = oneshot::channel();
 2028            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2029
 2030            cx.spawn_in(window, async move |workspace, cx| {
 2031                let Ok(result) = abs_path.await else {
 2032                    return Ok(());
 2033                };
 2034
 2035                match result {
 2036                    Ok(result) => {
 2037                        tx.send(result).ok();
 2038                    }
 2039                    Err(err) => {
 2040                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2041                            workspace.show_portal_error(err.to_string(), cx);
 2042                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2043                            let rx = prompt(workspace, lister, window, cx);
 2044                            workspace.on_prompt_for_open_path = Some(prompt);
 2045                            rx
 2046                        })?;
 2047                        if let Ok(path) = rx.await {
 2048                            tx.send(path).ok();
 2049                        }
 2050                    }
 2051                };
 2052                anyhow::Ok(())
 2053            })
 2054            .detach();
 2055
 2056            rx
 2057        }
 2058    }
 2059
 2060    pub fn prompt_for_new_path(
 2061        &mut self,
 2062        lister: DirectoryLister,
 2063        suggested_name: Option<String>,
 2064        window: &mut Window,
 2065        cx: &mut Context<Self>,
 2066    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2067        if self.project.read(cx).is_via_collab()
 2068            || self.project.read(cx).is_via_ssh()
 2069            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2070        {
 2071            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2072            let rx = prompt(self, lister, window, cx);
 2073            self.on_prompt_for_new_path = Some(prompt);
 2074            return rx;
 2075        }
 2076
 2077        let (tx, rx) = oneshot::channel();
 2078        cx.spawn_in(window, async move |workspace, cx| {
 2079            let abs_path = workspace.update(cx, |workspace, cx| {
 2080                let relative_to = workspace
 2081                    .most_recent_active_path(cx)
 2082                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2083                    .or_else(|| {
 2084                        let project = workspace.project.read(cx);
 2085                        project.visible_worktrees(cx).find_map(|worktree| {
 2086                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2087                        })
 2088                    })
 2089                    .or_else(std::env::home_dir)
 2090                    .unwrap_or_else(|| PathBuf::from(""));
 2091                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2092            })?;
 2093            let abs_path = match abs_path.await? {
 2094                Ok(path) => path,
 2095                Err(err) => {
 2096                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2097                        workspace.show_portal_error(err.to_string(), cx);
 2098
 2099                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2100                        let rx = prompt(workspace, lister, window, cx);
 2101                        workspace.on_prompt_for_new_path = Some(prompt);
 2102                        rx
 2103                    })?;
 2104                    if let Ok(path) = rx.await {
 2105                        tx.send(path).ok();
 2106                    }
 2107                    return anyhow::Ok(());
 2108                }
 2109            };
 2110
 2111            tx.send(abs_path.map(|path| vec![path])).ok();
 2112            anyhow::Ok(())
 2113        })
 2114        .detach();
 2115
 2116        rx
 2117    }
 2118
 2119    pub fn titlebar_item(&self) -> Option<AnyView> {
 2120        self.titlebar_item.clone()
 2121    }
 2122
 2123    /// Call the given callback with a workspace whose project is local.
 2124    ///
 2125    /// If the given workspace has a local project, then it will be passed
 2126    /// to the callback. Otherwise, a new empty window will be created.
 2127    pub fn with_local_workspace<T, F>(
 2128        &mut self,
 2129        window: &mut Window,
 2130        cx: &mut Context<Self>,
 2131        callback: F,
 2132    ) -> Task<Result<T>>
 2133    where
 2134        T: 'static,
 2135        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2136    {
 2137        if self.project.read(cx).is_local() {
 2138            Task::ready(Ok(callback(self, window, cx)))
 2139        } else {
 2140            let env = self.project.read(cx).cli_environment(cx);
 2141            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2142            cx.spawn_in(window, async move |_vh, cx| {
 2143                let (workspace, _) = task.await?;
 2144                workspace.update(cx, callback)
 2145            })
 2146        }
 2147    }
 2148
 2149    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2150        self.project.read(cx).worktrees(cx)
 2151    }
 2152
 2153    pub fn visible_worktrees<'a>(
 2154        &self,
 2155        cx: &'a App,
 2156    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2157        self.project.read(cx).visible_worktrees(cx)
 2158    }
 2159
 2160    #[cfg(any(test, feature = "test-support"))]
 2161    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2162        let futures = self
 2163            .worktrees(cx)
 2164            .filter_map(|worktree| worktree.read(cx).as_local())
 2165            .map(|worktree| worktree.scan_complete())
 2166            .collect::<Vec<_>>();
 2167        async move {
 2168            for future in futures {
 2169                future.await;
 2170            }
 2171        }
 2172    }
 2173
 2174    pub fn close_global(cx: &mut App) {
 2175        cx.defer(|cx| {
 2176            cx.windows().iter().find(|window| {
 2177                window
 2178                    .update(cx, |_, window, _| {
 2179                        if window.is_window_active() {
 2180                            //This can only get called when the window's project connection has been lost
 2181                            //so we don't need to prompt the user for anything and instead just close the window
 2182                            window.remove_window();
 2183                            true
 2184                        } else {
 2185                            false
 2186                        }
 2187                    })
 2188                    .unwrap_or(false)
 2189            });
 2190        });
 2191    }
 2192
 2193    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2194        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2195        cx.spawn_in(window, async move |_, cx| {
 2196            if prepare.await? {
 2197                cx.update(|window, _cx| window.remove_window())?;
 2198            }
 2199            anyhow::Ok(())
 2200        })
 2201        .detach_and_log_err(cx)
 2202    }
 2203
 2204    pub fn move_focused_panel_to_next_position(
 2205        &mut self,
 2206        _: &MoveFocusedPanelToNextPosition,
 2207        window: &mut Window,
 2208        cx: &mut Context<Self>,
 2209    ) {
 2210        let docks = self.all_docks();
 2211        let active_dock = docks
 2212            .into_iter()
 2213            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2214
 2215        if let Some(dock) = active_dock {
 2216            dock.update(cx, |dock, cx| {
 2217                let active_panel = dock
 2218                    .active_panel()
 2219                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2220
 2221                if let Some(panel) = active_panel {
 2222                    panel.move_to_next_position(window, cx);
 2223                }
 2224            })
 2225        }
 2226    }
 2227
 2228    pub fn prepare_to_close(
 2229        &mut self,
 2230        close_intent: CloseIntent,
 2231        window: &mut Window,
 2232        cx: &mut Context<Self>,
 2233    ) -> Task<Result<bool>> {
 2234        let active_call = self.active_call().cloned();
 2235
 2236        // On Linux and Windows, closing the last window should restore the last workspace.
 2237        let save_last_workspace = cfg!(not(target_os = "macos"))
 2238            && close_intent != CloseIntent::ReplaceWindow
 2239            && cx.windows().len() == 1;
 2240
 2241        cx.spawn_in(window, async move |this, cx| {
 2242            let workspace_count = cx.update(|_window, cx| {
 2243                cx.windows()
 2244                    .iter()
 2245                    .filter(|window| window.downcast::<Workspace>().is_some())
 2246                    .count()
 2247            })?;
 2248
 2249            if let Some(active_call) = active_call
 2250                && close_intent != CloseIntent::Quit
 2251                    && workspace_count == 1
 2252                    && active_call.read_with(cx, |call, _| call.room().is_some())?
 2253                {
 2254                    let answer = cx.update(|window, cx| {
 2255                        window.prompt(
 2256                            PromptLevel::Warning,
 2257                            "Do you want to leave the current call?",
 2258                            None,
 2259                            &["Close window and hang up", "Cancel"],
 2260                            cx,
 2261                        )
 2262                    })?;
 2263
 2264                    if answer.await.log_err() == Some(1) {
 2265                        return anyhow::Ok(false);
 2266                    } else {
 2267                        active_call
 2268                            .update(cx, |call, cx| call.hang_up(cx))?
 2269                            .await
 2270                            .log_err();
 2271                    }
 2272                }
 2273
 2274            let save_result = this
 2275                .update_in(cx, |this, window, cx| {
 2276                    this.save_all_internal(SaveIntent::Close, window, cx)
 2277                })?
 2278                .await;
 2279
 2280            // If we're not quitting, but closing, we remove the workspace from
 2281            // the current session.
 2282            if close_intent != CloseIntent::Quit
 2283                && !save_last_workspace
 2284                && save_result.as_ref().map_or(false, |&res| res)
 2285            {
 2286                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2287                    .await;
 2288            }
 2289
 2290            save_result
 2291        })
 2292    }
 2293
 2294    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2295        self.save_all_internal(
 2296            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2297            window,
 2298            cx,
 2299        )
 2300        .detach_and_log_err(cx);
 2301    }
 2302
 2303    fn send_keystrokes(
 2304        &mut self,
 2305        action: &SendKeystrokes,
 2306        window: &mut Window,
 2307        cx: &mut Context<Self>,
 2308    ) {
 2309        let keystrokes: Vec<Keystroke> = action
 2310            .0
 2311            .split(' ')
 2312            .flat_map(|k| Keystroke::parse(k).log_err())
 2313            .collect();
 2314        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2315    }
 2316
 2317    pub fn send_keystrokes_impl(
 2318        &mut self,
 2319        keystrokes: Vec<Keystroke>,
 2320        window: &mut Window,
 2321        cx: &mut Context<Self>,
 2322    ) -> Shared<Task<()>> {
 2323        let mut state = self.dispatching_keystrokes.borrow_mut();
 2324        if !state.dispatched.insert(keystrokes.clone()) {
 2325            cx.propagate();
 2326            return state.task.clone().unwrap();
 2327        }
 2328
 2329        state.queue.extend(keystrokes);
 2330
 2331        let keystrokes = self.dispatching_keystrokes.clone();
 2332        if state.task.is_none() {
 2333            state.task = Some(
 2334                window
 2335                    .spawn(cx, async move |cx| {
 2336                        // limit to 100 keystrokes to avoid infinite recursion.
 2337                        for _ in 0..100 {
 2338                            let mut state = keystrokes.borrow_mut();
 2339                            let Some(keystroke) = state.queue.pop_front() else {
 2340                                state.dispatched.clear();
 2341                                state.task.take();
 2342                                return;
 2343                            };
 2344                            drop(state);
 2345                            cx.update(|window, cx| {
 2346                                let focused = window.focused(cx);
 2347                                window.dispatch_keystroke(keystroke.clone(), cx);
 2348                                if window.focused(cx) != focused {
 2349                                    // dispatch_keystroke may cause the focus to change.
 2350                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2351                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2352                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2353                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2354                                    // )
 2355                                    window.draw(cx).clear();
 2356                                }
 2357                            })
 2358                            .ok();
 2359                        }
 2360
 2361                        *keystrokes.borrow_mut() = Default::default();
 2362                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2363                    })
 2364                    .shared(),
 2365            );
 2366        }
 2367        state.task.clone().unwrap()
 2368    }
 2369
 2370    fn save_all_internal(
 2371        &mut self,
 2372        mut save_intent: SaveIntent,
 2373        window: &mut Window,
 2374        cx: &mut Context<Self>,
 2375    ) -> Task<Result<bool>> {
 2376        if self.project.read(cx).is_disconnected(cx) {
 2377            return Task::ready(Ok(true));
 2378        }
 2379        let dirty_items = self
 2380            .panes
 2381            .iter()
 2382            .flat_map(|pane| {
 2383                pane.read(cx).items().filter_map(|item| {
 2384                    if item.is_dirty(cx) {
 2385                        item.tab_content_text(0, cx);
 2386                        Some((pane.downgrade(), item.boxed_clone()))
 2387                    } else {
 2388                        None
 2389                    }
 2390                })
 2391            })
 2392            .collect::<Vec<_>>();
 2393
 2394        let project = self.project.clone();
 2395        cx.spawn_in(window, async move |workspace, cx| {
 2396            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2397                let (serialize_tasks, remaining_dirty_items) =
 2398                    workspace.update_in(cx, |workspace, window, cx| {
 2399                        let mut remaining_dirty_items = Vec::new();
 2400                        let mut serialize_tasks = Vec::new();
 2401                        for (pane, item) in dirty_items {
 2402                            if let Some(task) = item
 2403                                .to_serializable_item_handle(cx)
 2404                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2405                            {
 2406                                serialize_tasks.push(task);
 2407                            } else {
 2408                                remaining_dirty_items.push((pane, item));
 2409                            }
 2410                        }
 2411                        (serialize_tasks, remaining_dirty_items)
 2412                    })?;
 2413
 2414                futures::future::try_join_all(serialize_tasks).await?;
 2415
 2416                if remaining_dirty_items.len() > 1 {
 2417                    let answer = workspace.update_in(cx, |_, window, cx| {
 2418                        let detail = Pane::file_names_for_prompt(
 2419                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2420                            cx,
 2421                        );
 2422                        window.prompt(
 2423                            PromptLevel::Warning,
 2424                            "Do you want to save all changes in the following files?",
 2425                            Some(&detail),
 2426                            &["Save all", "Discard all", "Cancel"],
 2427                            cx,
 2428                        )
 2429                    })?;
 2430                    match answer.await.log_err() {
 2431                        Some(0) => save_intent = SaveIntent::SaveAll,
 2432                        Some(1) => save_intent = SaveIntent::Skip,
 2433                        Some(2) => return Ok(false),
 2434                        _ => {}
 2435                    }
 2436                }
 2437
 2438                remaining_dirty_items
 2439            } else {
 2440                dirty_items
 2441            };
 2442
 2443            for (pane, item) in dirty_items {
 2444                let (singleton, project_entry_ids) =
 2445                    cx.update(|_, cx| (item.is_singleton(cx), item.project_entry_ids(cx)))?;
 2446                if (singleton || !project_entry_ids.is_empty())
 2447                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await? {
 2448                        return Ok(false);
 2449                    }
 2450            }
 2451            Ok(true)
 2452        })
 2453    }
 2454
 2455    pub fn open_workspace_for_paths(
 2456        &mut self,
 2457        replace_current_window: bool,
 2458        paths: Vec<PathBuf>,
 2459        window: &mut Window,
 2460        cx: &mut Context<Self>,
 2461    ) -> Task<Result<()>> {
 2462        let window_handle = window.window_handle().downcast::<Self>();
 2463        let is_remote = self.project.read(cx).is_via_collab();
 2464        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2465        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2466
 2467        let window_to_replace = if replace_current_window {
 2468            window_handle
 2469        } else if is_remote || has_worktree || has_dirty_items {
 2470            None
 2471        } else {
 2472            window_handle
 2473        };
 2474        let app_state = self.app_state.clone();
 2475
 2476        cx.spawn(async move |_, cx| {
 2477            cx.update(|cx| {
 2478                open_paths(
 2479                    &paths,
 2480                    app_state,
 2481                    OpenOptions {
 2482                        replace_window: window_to_replace,
 2483                        ..Default::default()
 2484                    },
 2485                    cx,
 2486                )
 2487            })?
 2488            .await?;
 2489            Ok(())
 2490        })
 2491    }
 2492
 2493    #[allow(clippy::type_complexity)]
 2494    pub fn open_paths(
 2495        &mut self,
 2496        mut abs_paths: Vec<PathBuf>,
 2497        options: OpenOptions,
 2498        pane: Option<WeakEntity<Pane>>,
 2499        window: &mut Window,
 2500        cx: &mut Context<Self>,
 2501    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2502        log::info!("open paths {abs_paths:?}");
 2503
 2504        let fs = self.app_state.fs.clone();
 2505
 2506        // Sort the paths to ensure we add worktrees for parents before their children.
 2507        abs_paths.sort_unstable();
 2508        cx.spawn_in(window, async move |this, cx| {
 2509            let mut tasks = Vec::with_capacity(abs_paths.len());
 2510
 2511            for abs_path in &abs_paths {
 2512                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2513                    OpenVisible::All => Some(true),
 2514                    OpenVisible::None => Some(false),
 2515                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2516                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2517                        Some(None) => Some(true),
 2518                        None => None,
 2519                    },
 2520                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2521                        Some(Some(metadata)) => Some(metadata.is_dir),
 2522                        Some(None) => Some(false),
 2523                        None => None,
 2524                    },
 2525                };
 2526                let project_path = match visible {
 2527                    Some(visible) => match this
 2528                        .update(cx, |this, cx| {
 2529                            Workspace::project_path_for_path(
 2530                                this.project.clone(),
 2531                                abs_path,
 2532                                visible,
 2533                                cx,
 2534                            )
 2535                        })
 2536                        .log_err()
 2537                    {
 2538                        Some(project_path) => project_path.await.log_err(),
 2539                        None => None,
 2540                    },
 2541                    None => None,
 2542                };
 2543
 2544                let this = this.clone();
 2545                let abs_path: Arc<Path> = SanitizedPath::from(abs_path.clone()).into();
 2546                let fs = fs.clone();
 2547                let pane = pane.clone();
 2548                let task = cx.spawn(async move |cx| {
 2549                    let (worktree, project_path) = project_path?;
 2550                    if fs.is_dir(&abs_path).await {
 2551                        this.update(cx, |workspace, cx| {
 2552                            let worktree = worktree.read(cx);
 2553                            let worktree_abs_path = worktree.abs_path();
 2554                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2555                                worktree.root_entry()
 2556                            } else {
 2557                                abs_path
 2558                                    .strip_prefix(worktree_abs_path.as_ref())
 2559                                    .ok()
 2560                                    .and_then(|relative_path| {
 2561                                        worktree.entry_for_path(relative_path)
 2562                                    })
 2563                            }
 2564                            .map(|entry| entry.id);
 2565                            if let Some(entry_id) = entry_id {
 2566                                workspace.project.update(cx, |_, cx| {
 2567                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2568                                })
 2569                            }
 2570                        })
 2571                        .ok()?;
 2572                        None
 2573                    } else {
 2574                        Some(
 2575                            this.update_in(cx, |this, window, cx| {
 2576                                this.open_path(
 2577                                    project_path,
 2578                                    pane,
 2579                                    options.focus.unwrap_or(true),
 2580                                    window,
 2581                                    cx,
 2582                                )
 2583                            })
 2584                            .ok()?
 2585                            .await,
 2586                        )
 2587                    }
 2588                });
 2589                tasks.push(task);
 2590            }
 2591
 2592            futures::future::join_all(tasks).await
 2593        })
 2594    }
 2595
 2596    pub fn open_resolved_path(
 2597        &mut self,
 2598        path: ResolvedPath,
 2599        window: &mut Window,
 2600        cx: &mut Context<Self>,
 2601    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2602        match path {
 2603            ResolvedPath::ProjectPath { project_path, .. } => {
 2604                self.open_path(project_path, None, true, window, cx)
 2605            }
 2606            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2607                path,
 2608                OpenOptions {
 2609                    visible: Some(OpenVisible::None),
 2610                    ..Default::default()
 2611                },
 2612                window,
 2613                cx,
 2614            ),
 2615        }
 2616    }
 2617
 2618    pub fn absolute_path_of_worktree(
 2619        &self,
 2620        worktree_id: WorktreeId,
 2621        cx: &mut Context<Self>,
 2622    ) -> Option<PathBuf> {
 2623        self.project
 2624            .read(cx)
 2625            .worktree_for_id(worktree_id, cx)
 2626            // TODO: use `abs_path` or `root_dir`
 2627            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2628    }
 2629
 2630    fn add_folder_to_project(
 2631        &mut self,
 2632        _: &AddFolderToProject,
 2633        window: &mut Window,
 2634        cx: &mut Context<Self>,
 2635    ) {
 2636        let project = self.project.read(cx);
 2637        if project.is_via_collab() {
 2638            self.show_error(
 2639                &anyhow!("You cannot add folders to someone else's project"),
 2640                cx,
 2641            );
 2642            return;
 2643        }
 2644        let paths = self.prompt_for_open_path(
 2645            PathPromptOptions {
 2646                files: false,
 2647                directories: true,
 2648                multiple: true,
 2649                prompt: None,
 2650            },
 2651            DirectoryLister::Project(self.project.clone()),
 2652            window,
 2653            cx,
 2654        );
 2655        cx.spawn_in(window, async move |this, cx| {
 2656            if let Some(paths) = paths.await.log_err().flatten() {
 2657                let results = this
 2658                    .update_in(cx, |this, window, cx| {
 2659                        this.open_paths(
 2660                            paths,
 2661                            OpenOptions {
 2662                                visible: Some(OpenVisible::All),
 2663                                ..Default::default()
 2664                            },
 2665                            None,
 2666                            window,
 2667                            cx,
 2668                        )
 2669                    })?
 2670                    .await;
 2671                for result in results.into_iter().flatten() {
 2672                    result.log_err();
 2673                }
 2674            }
 2675            anyhow::Ok(())
 2676        })
 2677        .detach_and_log_err(cx);
 2678    }
 2679
 2680    pub fn project_path_for_path(
 2681        project: Entity<Project>,
 2682        abs_path: &Path,
 2683        visible: bool,
 2684        cx: &mut App,
 2685    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2686        let entry = project.update(cx, |project, cx| {
 2687            project.find_or_create_worktree(abs_path, visible, cx)
 2688        });
 2689        cx.spawn(async move |cx| {
 2690            let (worktree, path) = entry.await?;
 2691            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2692            Ok((
 2693                worktree,
 2694                ProjectPath {
 2695                    worktree_id,
 2696                    path: path.into(),
 2697                },
 2698            ))
 2699        })
 2700    }
 2701
 2702    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2703        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2704    }
 2705
 2706    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2707        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2708    }
 2709
 2710    pub fn items_of_type<'a, T: Item>(
 2711        &'a self,
 2712        cx: &'a App,
 2713    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2714        self.panes
 2715            .iter()
 2716            .flat_map(|pane| pane.read(cx).items_of_type())
 2717    }
 2718
 2719    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2720        self.active_pane().read(cx).active_item()
 2721    }
 2722
 2723    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2724        let item = self.active_item(cx)?;
 2725        item.to_any().downcast::<I>().ok()
 2726    }
 2727
 2728    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2729        self.active_item(cx).and_then(|item| item.project_path(cx))
 2730    }
 2731
 2732    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2733        self.recent_navigation_history_iter(cx)
 2734            .filter_map(|(path, abs_path)| {
 2735                let worktree = self
 2736                    .project
 2737                    .read(cx)
 2738                    .worktree_for_id(path.worktree_id, cx)?;
 2739                if worktree.read(cx).is_visible() {
 2740                    abs_path
 2741                } else {
 2742                    None
 2743                }
 2744            })
 2745            .next()
 2746    }
 2747
 2748    pub fn save_active_item(
 2749        &mut self,
 2750        save_intent: SaveIntent,
 2751        window: &mut Window,
 2752        cx: &mut App,
 2753    ) -> Task<Result<()>> {
 2754        let project = self.project.clone();
 2755        let pane = self.active_pane();
 2756        let item = pane.read(cx).active_item();
 2757        let pane = pane.downgrade();
 2758
 2759        window.spawn(cx, async move |cx| {
 2760            if let Some(item) = item {
 2761                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2762                    .await
 2763                    .map(|_| ())
 2764            } else {
 2765                Ok(())
 2766            }
 2767        })
 2768    }
 2769
 2770    pub fn close_inactive_items_and_panes(
 2771        &mut self,
 2772        action: &CloseInactiveTabsAndPanes,
 2773        window: &mut Window,
 2774        cx: &mut Context<Self>,
 2775    ) {
 2776        if let Some(task) = self.close_all_internal(
 2777            true,
 2778            action.save_intent.unwrap_or(SaveIntent::Close),
 2779            window,
 2780            cx,
 2781        ) {
 2782            task.detach_and_log_err(cx)
 2783        }
 2784    }
 2785
 2786    pub fn close_all_items_and_panes(
 2787        &mut self,
 2788        action: &CloseAllItemsAndPanes,
 2789        window: &mut Window,
 2790        cx: &mut Context<Self>,
 2791    ) {
 2792        if let Some(task) = self.close_all_internal(
 2793            false,
 2794            action.save_intent.unwrap_or(SaveIntent::Close),
 2795            window,
 2796            cx,
 2797        ) {
 2798            task.detach_and_log_err(cx)
 2799        }
 2800    }
 2801
 2802    fn close_all_internal(
 2803        &mut self,
 2804        retain_active_pane: bool,
 2805        save_intent: SaveIntent,
 2806        window: &mut Window,
 2807        cx: &mut Context<Self>,
 2808    ) -> Option<Task<Result<()>>> {
 2809        let current_pane = self.active_pane();
 2810
 2811        let mut tasks = Vec::new();
 2812
 2813        if retain_active_pane {
 2814            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2815                pane.close_other_items(
 2816                    &CloseOtherItems {
 2817                        save_intent: None,
 2818                        close_pinned: false,
 2819                    },
 2820                    None,
 2821                    window,
 2822                    cx,
 2823                )
 2824            });
 2825
 2826            tasks.push(current_pane_close);
 2827        }
 2828
 2829        for pane in self.panes() {
 2830            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2831                continue;
 2832            }
 2833
 2834            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2835                pane.close_all_items(
 2836                    &CloseAllItems {
 2837                        save_intent: Some(save_intent),
 2838                        close_pinned: false,
 2839                    },
 2840                    window,
 2841                    cx,
 2842                )
 2843            });
 2844
 2845            tasks.push(close_pane_items)
 2846        }
 2847
 2848        if tasks.is_empty() {
 2849            None
 2850        } else {
 2851            Some(cx.spawn_in(window, async move |_, _| {
 2852                for task in tasks {
 2853                    task.await?
 2854                }
 2855                Ok(())
 2856            }))
 2857        }
 2858    }
 2859
 2860    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 2861        self.dock_at_position(position).read(cx).is_open()
 2862    }
 2863
 2864    pub fn toggle_dock(
 2865        &mut self,
 2866        dock_side: DockPosition,
 2867        window: &mut Window,
 2868        cx: &mut Context<Self>,
 2869    ) {
 2870        let dock = self.dock_at_position(dock_side);
 2871        let mut focus_center = false;
 2872        let mut reveal_dock = false;
 2873        dock.update(cx, |dock, cx| {
 2874            let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 2875            let was_visible = dock.is_open() && !other_is_zoomed;
 2876            dock.set_open(!was_visible, window, cx);
 2877
 2878            if dock.active_panel().is_none() {
 2879                let Some(panel_ix) = dock
 2880                    .first_enabled_panel_idx(cx)
 2881                    .log_with_level(log::Level::Info)
 2882                else {
 2883                    return;
 2884                };
 2885                dock.activate_panel(panel_ix, window, cx);
 2886            }
 2887
 2888            if let Some(active_panel) = dock.active_panel() {
 2889                if was_visible {
 2890                    if active_panel
 2891                        .panel_focus_handle(cx)
 2892                        .contains_focused(window, cx)
 2893                    {
 2894                        focus_center = true;
 2895                    }
 2896                } else {
 2897                    let focus_handle = &active_panel.panel_focus_handle(cx);
 2898                    window.focus(focus_handle);
 2899                    reveal_dock = true;
 2900                }
 2901            }
 2902        });
 2903
 2904        if reveal_dock {
 2905            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 2906        }
 2907
 2908        if focus_center {
 2909            self.active_pane
 2910                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 2911        }
 2912
 2913        cx.notify();
 2914        self.serialize_workspace(window, cx);
 2915    }
 2916
 2917    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 2918        self.all_docks().into_iter().find(|&dock| {
 2919            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 2920        })
 2921    }
 2922
 2923    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 2924        if let Some(dock) = self.active_dock(window, cx) {
 2925            dock.update(cx, |dock, cx| {
 2926                dock.set_open(false, window, cx);
 2927            });
 2928            return true;
 2929        }
 2930        false
 2931    }
 2932
 2933    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 2934        for dock in self.all_docks() {
 2935            dock.update(cx, |dock, cx| {
 2936                dock.set_open(false, window, cx);
 2937            });
 2938        }
 2939
 2940        cx.focus_self(window);
 2941        cx.notify();
 2942        self.serialize_workspace(window, cx);
 2943    }
 2944
 2945    /// Transfer focus to the panel of the given type.
 2946    pub fn focus_panel<T: Panel>(
 2947        &mut self,
 2948        window: &mut Window,
 2949        cx: &mut Context<Self>,
 2950    ) -> Option<Entity<T>> {
 2951        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 2952        panel.to_any().downcast().ok()
 2953    }
 2954
 2955    /// Focus the panel of the given type if it isn't already focused. If it is
 2956    /// already focused, then transfer focus back to the workspace center.
 2957    pub fn toggle_panel_focus<T: Panel>(
 2958        &mut self,
 2959        window: &mut Window,
 2960        cx: &mut Context<Self>,
 2961    ) -> bool {
 2962        let mut did_focus_panel = false;
 2963        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 2964            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 2965            did_focus_panel
 2966        });
 2967        did_focus_panel
 2968    }
 2969
 2970    pub fn activate_panel_for_proto_id(
 2971        &mut self,
 2972        panel_id: PanelId,
 2973        window: &mut Window,
 2974        cx: &mut Context<Self>,
 2975    ) -> Option<Arc<dyn PanelHandle>> {
 2976        let mut panel = None;
 2977        for dock in self.all_docks() {
 2978            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 2979                panel = dock.update(cx, |dock, cx| {
 2980                    dock.activate_panel(panel_index, window, cx);
 2981                    dock.set_open(true, window, cx);
 2982                    dock.active_panel().cloned()
 2983                });
 2984                break;
 2985            }
 2986        }
 2987
 2988        if panel.is_some() {
 2989            cx.notify();
 2990            self.serialize_workspace(window, cx);
 2991        }
 2992
 2993        panel
 2994    }
 2995
 2996    /// Focus or unfocus the given panel type, depending on the given callback.
 2997    fn focus_or_unfocus_panel<T: Panel>(
 2998        &mut self,
 2999        window: &mut Window,
 3000        cx: &mut Context<Self>,
 3001        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3002    ) -> Option<Arc<dyn PanelHandle>> {
 3003        let mut result_panel = None;
 3004        let mut serialize = false;
 3005        for dock in self.all_docks() {
 3006            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3007                let mut focus_center = false;
 3008                let panel = dock.update(cx, |dock, cx| {
 3009                    dock.activate_panel(panel_index, window, cx);
 3010
 3011                    let panel = dock.active_panel().cloned();
 3012                    if let Some(panel) = panel.as_ref() {
 3013                        if should_focus(&**panel, window, cx) {
 3014                            dock.set_open(true, window, cx);
 3015                            panel.panel_focus_handle(cx).focus(window);
 3016                        } else {
 3017                            focus_center = true;
 3018                        }
 3019                    }
 3020                    panel
 3021                });
 3022
 3023                if focus_center {
 3024                    self.active_pane
 3025                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3026                }
 3027
 3028                result_panel = panel;
 3029                serialize = true;
 3030                break;
 3031            }
 3032        }
 3033
 3034        if serialize {
 3035            self.serialize_workspace(window, cx);
 3036        }
 3037
 3038        cx.notify();
 3039        result_panel
 3040    }
 3041
 3042    /// Open the panel of the given type
 3043    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3044        for dock in self.all_docks() {
 3045            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3046                dock.update(cx, |dock, cx| {
 3047                    dock.activate_panel(panel_index, window, cx);
 3048                    dock.set_open(true, window, cx);
 3049                });
 3050            }
 3051        }
 3052    }
 3053
 3054    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3055        self.all_docks()
 3056            .iter()
 3057            .find_map(|dock| dock.read(cx).panel::<T>())
 3058    }
 3059
 3060    fn dismiss_zoomed_items_to_reveal(
 3061        &mut self,
 3062        dock_to_reveal: Option<DockPosition>,
 3063        window: &mut Window,
 3064        cx: &mut Context<Self>,
 3065    ) {
 3066        // If a center pane is zoomed, unzoom it.
 3067        for pane in &self.panes {
 3068            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3069                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3070            }
 3071        }
 3072
 3073        // If another dock is zoomed, hide it.
 3074        let mut focus_center = false;
 3075        for dock in self.all_docks() {
 3076            dock.update(cx, |dock, cx| {
 3077                if Some(dock.position()) != dock_to_reveal
 3078                    && let Some(panel) = dock.active_panel()
 3079                        && panel.is_zoomed(window, cx) {
 3080                            focus_center |=
 3081                                panel.panel_focus_handle(cx).contains_focused(window, cx);
 3082                            dock.set_open(false, window, cx);
 3083                        }
 3084            });
 3085        }
 3086
 3087        if focus_center {
 3088            self.active_pane
 3089                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3090        }
 3091
 3092        if self.zoomed_position != dock_to_reveal {
 3093            self.zoomed = None;
 3094            self.zoomed_position = None;
 3095            cx.emit(Event::ZoomChanged);
 3096        }
 3097
 3098        cx.notify();
 3099    }
 3100
 3101    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3102        let pane = cx.new(|cx| {
 3103            let mut pane = Pane::new(
 3104                self.weak_handle(),
 3105                self.project.clone(),
 3106                self.pane_history_timestamp.clone(),
 3107                None,
 3108                NewFile.boxed_clone(),
 3109                window,
 3110                cx,
 3111            );
 3112            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3113            pane
 3114        });
 3115        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3116            .detach();
 3117        self.panes.push(pane.clone());
 3118
 3119        window.focus(&pane.focus_handle(cx));
 3120
 3121        cx.emit(Event::PaneAdded(pane.clone()));
 3122        pane
 3123    }
 3124
 3125    pub fn add_item_to_center(
 3126        &mut self,
 3127        item: Box<dyn ItemHandle>,
 3128        window: &mut Window,
 3129        cx: &mut Context<Self>,
 3130    ) -> bool {
 3131        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3132            if let Some(center_pane) = center_pane.upgrade() {
 3133                center_pane.update(cx, |pane, cx| {
 3134                    pane.add_item(item, true, true, None, window, cx)
 3135                });
 3136                true
 3137            } else {
 3138                false
 3139            }
 3140        } else {
 3141            false
 3142        }
 3143    }
 3144
 3145    pub fn add_item_to_active_pane(
 3146        &mut self,
 3147        item: Box<dyn ItemHandle>,
 3148        destination_index: Option<usize>,
 3149        focus_item: bool,
 3150        window: &mut Window,
 3151        cx: &mut App,
 3152    ) {
 3153        self.add_item(
 3154            self.active_pane.clone(),
 3155            item,
 3156            destination_index,
 3157            false,
 3158            focus_item,
 3159            window,
 3160            cx,
 3161        )
 3162    }
 3163
 3164    pub fn add_item(
 3165        &mut self,
 3166        pane: Entity<Pane>,
 3167        item: Box<dyn ItemHandle>,
 3168        destination_index: Option<usize>,
 3169        activate_pane: bool,
 3170        focus_item: bool,
 3171        window: &mut Window,
 3172        cx: &mut App,
 3173    ) {
 3174        if let Some(text) = item.telemetry_event_text(cx) {
 3175            telemetry::event!(text);
 3176        }
 3177
 3178        pane.update(cx, |pane, cx| {
 3179            pane.add_item(
 3180                item,
 3181                activate_pane,
 3182                focus_item,
 3183                destination_index,
 3184                window,
 3185                cx,
 3186            )
 3187        });
 3188    }
 3189
 3190    pub fn split_item(
 3191        &mut self,
 3192        split_direction: SplitDirection,
 3193        item: Box<dyn ItemHandle>,
 3194        window: &mut Window,
 3195        cx: &mut Context<Self>,
 3196    ) {
 3197        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3198        self.add_item(new_pane, item, None, true, true, window, cx);
 3199    }
 3200
 3201    pub fn open_abs_path(
 3202        &mut self,
 3203        abs_path: PathBuf,
 3204        options: OpenOptions,
 3205        window: &mut Window,
 3206        cx: &mut Context<Self>,
 3207    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3208        cx.spawn_in(window, async move |workspace, cx| {
 3209            let open_paths_task_result = workspace
 3210                .update_in(cx, |workspace, window, cx| {
 3211                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3212                })
 3213                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3214                .await;
 3215            anyhow::ensure!(
 3216                open_paths_task_result.len() == 1,
 3217                "open abs path {abs_path:?} task returned incorrect number of results"
 3218            );
 3219            match open_paths_task_result
 3220                .into_iter()
 3221                .next()
 3222                .expect("ensured single task result")
 3223            {
 3224                Some(open_result) => {
 3225                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3226                }
 3227                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3228            }
 3229        })
 3230    }
 3231
 3232    pub fn split_abs_path(
 3233        &mut self,
 3234        abs_path: PathBuf,
 3235        visible: bool,
 3236        window: &mut Window,
 3237        cx: &mut Context<Self>,
 3238    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3239        let project_path_task =
 3240            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3241        cx.spawn_in(window, async move |this, cx| {
 3242            let (_, path) = project_path_task.await?;
 3243            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3244                .await
 3245        })
 3246    }
 3247
 3248    pub fn open_path(
 3249        &mut self,
 3250        path: impl Into<ProjectPath>,
 3251        pane: Option<WeakEntity<Pane>>,
 3252        focus_item: bool,
 3253        window: &mut Window,
 3254        cx: &mut App,
 3255    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3256        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3257    }
 3258
 3259    pub fn open_path_preview(
 3260        &mut self,
 3261        path: impl Into<ProjectPath>,
 3262        pane: Option<WeakEntity<Pane>>,
 3263        focus_item: bool,
 3264        allow_preview: bool,
 3265        activate: bool,
 3266        window: &mut Window,
 3267        cx: &mut App,
 3268    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3269        let pane = pane.unwrap_or_else(|| {
 3270            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3271                self.panes
 3272                    .first()
 3273                    .expect("There must be an active pane")
 3274                    .downgrade()
 3275            })
 3276        });
 3277
 3278        let project_path = path.into();
 3279        let task = self.load_path(project_path.clone(), window, cx);
 3280        window.spawn(cx, async move |cx| {
 3281            let (project_entry_id, build_item) = task.await?;
 3282            let result = pane.update_in(cx, |pane, window, cx| {
 3283                pane.open_item(
 3284                    project_entry_id,
 3285                    project_path,
 3286                    focus_item,
 3287                    allow_preview,
 3288                    activate,
 3289                    None,
 3290                    window,
 3291                    cx,
 3292                    build_item,
 3293                )
 3294            });
 3295            result
 3296        })
 3297    }
 3298
 3299    pub fn split_path(
 3300        &mut self,
 3301        path: impl Into<ProjectPath>,
 3302        window: &mut Window,
 3303        cx: &mut Context<Self>,
 3304    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3305        self.split_path_preview(path, false, None, window, cx)
 3306    }
 3307
 3308    pub fn split_path_preview(
 3309        &mut self,
 3310        path: impl Into<ProjectPath>,
 3311        allow_preview: bool,
 3312        split_direction: Option<SplitDirection>,
 3313        window: &mut Window,
 3314        cx: &mut Context<Self>,
 3315    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3316        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3317            self.panes
 3318                .first()
 3319                .expect("There must be an active pane")
 3320                .downgrade()
 3321        });
 3322
 3323        if let Member::Pane(center_pane) = &self.center.root
 3324            && center_pane.read(cx).items_len() == 0 {
 3325                return self.open_path(path, Some(pane), true, window, cx);
 3326            }
 3327
 3328        let project_path = path.into();
 3329        let task = self.load_path(project_path.clone(), window, cx);
 3330        cx.spawn_in(window, async move |this, cx| {
 3331            let (project_entry_id, build_item) = task.await?;
 3332            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3333                let pane = pane.upgrade()?;
 3334                let new_pane = this.split_pane(
 3335                    pane,
 3336                    split_direction.unwrap_or(SplitDirection::Right),
 3337                    window,
 3338                    cx,
 3339                );
 3340                new_pane.update(cx, |new_pane, cx| {
 3341                    Some(new_pane.open_item(
 3342                        project_entry_id,
 3343                        project_path,
 3344                        true,
 3345                        allow_preview,
 3346                        true,
 3347                        None,
 3348                        window,
 3349                        cx,
 3350                        build_item,
 3351                    ))
 3352                })
 3353            })
 3354            .map(|option| option.context("pane was dropped"))?
 3355        })
 3356    }
 3357
 3358    fn load_path(
 3359        &mut self,
 3360        path: ProjectPath,
 3361        window: &mut Window,
 3362        cx: &mut App,
 3363    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3364        let project = self.project().clone();
 3365        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3366        registry.open_path(&project, &path, window, cx)
 3367    }
 3368
 3369    pub fn find_project_item<T>(
 3370        &self,
 3371        pane: &Entity<Pane>,
 3372        project_item: &Entity<T::Item>,
 3373        cx: &App,
 3374    ) -> Option<Entity<T>>
 3375    where
 3376        T: ProjectItem,
 3377    {
 3378        use project::ProjectItem as _;
 3379        let project_item = project_item.read(cx);
 3380        let entry_id = project_item.entry_id(cx);
 3381        let project_path = project_item.project_path(cx);
 3382
 3383        let mut item = None;
 3384        if let Some(entry_id) = entry_id {
 3385            item = pane.read(cx).item_for_entry(entry_id, cx);
 3386        }
 3387        if item.is_none()
 3388            && let Some(project_path) = project_path {
 3389                item = pane.read(cx).item_for_path(project_path, cx);
 3390            }
 3391
 3392        item.and_then(|item| item.downcast::<T>())
 3393    }
 3394
 3395    pub fn is_project_item_open<T>(
 3396        &self,
 3397        pane: &Entity<Pane>,
 3398        project_item: &Entity<T::Item>,
 3399        cx: &App,
 3400    ) -> bool
 3401    where
 3402        T: ProjectItem,
 3403    {
 3404        self.find_project_item::<T>(pane, project_item, cx)
 3405            .is_some()
 3406    }
 3407
 3408    pub fn open_project_item<T>(
 3409        &mut self,
 3410        pane: Entity<Pane>,
 3411        project_item: Entity<T::Item>,
 3412        activate_pane: bool,
 3413        focus_item: bool,
 3414        window: &mut Window,
 3415        cx: &mut Context<Self>,
 3416    ) -> Entity<T>
 3417    where
 3418        T: ProjectItem,
 3419    {
 3420        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3421            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3422            return item;
 3423        }
 3424
 3425        let item = pane.update(cx, |pane, cx| {
 3426            cx.new(|cx| {
 3427                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3428            })
 3429        });
 3430        let item_id = item.item_id();
 3431        let mut destination_index = None;
 3432        pane.update(cx, |pane, cx| {
 3433            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation
 3434                && let Some(preview_item_id) = pane.preview_item_id()
 3435                    && preview_item_id != item_id {
 3436                        destination_index = pane.close_current_preview_item(window, cx);
 3437                    }
 3438            pane.set_preview_item_id(Some(item.item_id()), cx)
 3439        });
 3440
 3441        self.add_item(
 3442            pane,
 3443            Box::new(item.clone()),
 3444            destination_index,
 3445            activate_pane,
 3446            focus_item,
 3447            window,
 3448            cx,
 3449        );
 3450        item
 3451    }
 3452
 3453    pub fn open_shared_screen(
 3454        &mut self,
 3455        peer_id: PeerId,
 3456        window: &mut Window,
 3457        cx: &mut Context<Self>,
 3458    ) {
 3459        if let Some(shared_screen) =
 3460            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3461        {
 3462            self.active_pane.update(cx, |pane, cx| {
 3463                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3464            });
 3465        }
 3466    }
 3467
 3468    pub fn activate_item(
 3469        &mut self,
 3470        item: &dyn ItemHandle,
 3471        activate_pane: bool,
 3472        focus_item: bool,
 3473        window: &mut Window,
 3474        cx: &mut App,
 3475    ) -> bool {
 3476        let result = self.panes.iter().find_map(|pane| {
 3477            pane.read(cx)
 3478                .index_for_item(item)
 3479                .map(|ix| (pane.clone(), ix))
 3480        });
 3481        if let Some((pane, ix)) = result {
 3482            pane.update(cx, |pane, cx| {
 3483                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3484            });
 3485            true
 3486        } else {
 3487            false
 3488        }
 3489    }
 3490
 3491    fn activate_pane_at_index(
 3492        &mut self,
 3493        action: &ActivatePane,
 3494        window: &mut Window,
 3495        cx: &mut Context<Self>,
 3496    ) {
 3497        let panes = self.center.panes();
 3498        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3499            window.focus(&pane.focus_handle(cx));
 3500        } else {
 3501            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx);
 3502        }
 3503    }
 3504
 3505    fn move_item_to_pane_at_index(
 3506        &mut self,
 3507        action: &MoveItemToPane,
 3508        window: &mut Window,
 3509        cx: &mut Context<Self>,
 3510    ) {
 3511        let panes = self.center.panes();
 3512        let destination = match panes.get(action.destination) {
 3513            Some(&destination) => destination.clone(),
 3514            None => {
 3515                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3516                    return;
 3517                }
 3518                let direction = SplitDirection::Right;
 3519                let split_off_pane = self
 3520                    .find_pane_in_direction(direction, cx)
 3521                    .unwrap_or_else(|| self.active_pane.clone());
 3522                let new_pane = self.add_pane(window, cx);
 3523                if self
 3524                    .center
 3525                    .split(&split_off_pane, &new_pane, direction)
 3526                    .log_err()
 3527                    .is_none()
 3528                {
 3529                    return;
 3530                };
 3531                new_pane
 3532            }
 3533        };
 3534
 3535        if action.clone {
 3536            clone_active_item(
 3537                self.database_id(),
 3538                &self.active_pane,
 3539                &destination,
 3540                action.focus,
 3541                window,
 3542                cx,
 3543            )
 3544        } else {
 3545            move_active_item(
 3546                &self.active_pane,
 3547                &destination,
 3548                action.focus,
 3549                true,
 3550                window,
 3551                cx,
 3552            )
 3553        }
 3554    }
 3555
 3556    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3557        let panes = self.center.panes();
 3558        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3559            let next_ix = (ix + 1) % panes.len();
 3560            let next_pane = panes[next_ix].clone();
 3561            window.focus(&next_pane.focus_handle(cx));
 3562        }
 3563    }
 3564
 3565    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3566        let panes = self.center.panes();
 3567        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3568            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3569            let prev_pane = panes[prev_ix].clone();
 3570            window.focus(&prev_pane.focus_handle(cx));
 3571        }
 3572    }
 3573
 3574    pub fn activate_pane_in_direction(
 3575        &mut self,
 3576        direction: SplitDirection,
 3577        window: &mut Window,
 3578        cx: &mut App,
 3579    ) {
 3580        use ActivateInDirectionTarget as Target;
 3581        enum Origin {
 3582            LeftDock,
 3583            RightDock,
 3584            BottomDock,
 3585            Center,
 3586        }
 3587
 3588        let origin: Origin = [
 3589            (&self.left_dock, Origin::LeftDock),
 3590            (&self.right_dock, Origin::RightDock),
 3591            (&self.bottom_dock, Origin::BottomDock),
 3592        ]
 3593        .into_iter()
 3594        .find_map(|(dock, origin)| {
 3595            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3596                Some(origin)
 3597            } else {
 3598                None
 3599            }
 3600        })
 3601        .unwrap_or(Origin::Center);
 3602
 3603        let get_last_active_pane = || {
 3604            let pane = self
 3605                .last_active_center_pane
 3606                .clone()
 3607                .unwrap_or_else(|| {
 3608                    self.panes
 3609                        .first()
 3610                        .expect("There must be an active pane")
 3611                        .downgrade()
 3612                })
 3613                .upgrade()?;
 3614            (pane.read(cx).items_len() != 0).then_some(pane)
 3615        };
 3616
 3617        let try_dock =
 3618            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3619
 3620        let target = match (origin, direction) {
 3621            // We're in the center, so we first try to go to a different pane,
 3622            // otherwise try to go to a dock.
 3623            (Origin::Center, direction) => {
 3624                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3625                    Some(Target::Pane(pane))
 3626                } else {
 3627                    match direction {
 3628                        SplitDirection::Up => None,
 3629                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3630                        SplitDirection::Left => try_dock(&self.left_dock),
 3631                        SplitDirection::Right => try_dock(&self.right_dock),
 3632                    }
 3633                }
 3634            }
 3635
 3636            (Origin::LeftDock, SplitDirection::Right) => {
 3637                if let Some(last_active_pane) = get_last_active_pane() {
 3638                    Some(Target::Pane(last_active_pane))
 3639                } else {
 3640                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3641                }
 3642            }
 3643
 3644            (Origin::LeftDock, SplitDirection::Down)
 3645            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3646
 3647            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3648            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3649            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3650
 3651            (Origin::RightDock, SplitDirection::Left) => {
 3652                if let Some(last_active_pane) = get_last_active_pane() {
 3653                    Some(Target::Pane(last_active_pane))
 3654                } else {
 3655                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3656                }
 3657            }
 3658
 3659            _ => None,
 3660        };
 3661
 3662        match target {
 3663            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3664                let pane = pane.read(cx);
 3665                if let Some(item) = pane.active_item() {
 3666                    item.item_focus_handle(cx).focus(window);
 3667                } else {
 3668                    log::error!(
 3669                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3670                    );
 3671                }
 3672            }
 3673            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3674                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3675                window.defer(cx, move |window, cx| {
 3676                    let dock = dock.read(cx);
 3677                    if let Some(panel) = dock.active_panel() {
 3678                        panel.panel_focus_handle(cx).focus(window);
 3679                    } else {
 3680                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3681                    }
 3682                })
 3683            }
 3684            None => {}
 3685        }
 3686    }
 3687
 3688    pub fn move_item_to_pane_in_direction(
 3689        &mut self,
 3690        action: &MoveItemToPaneInDirection,
 3691        window: &mut Window,
 3692        cx: &mut Context<Self>,
 3693    ) {
 3694        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3695            Some(destination) => destination,
 3696            None => {
 3697                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3698                    return;
 3699                }
 3700                let new_pane = self.add_pane(window, cx);
 3701                if self
 3702                    .center
 3703                    .split(&self.active_pane, &new_pane, action.direction)
 3704                    .log_err()
 3705                    .is_none()
 3706                {
 3707                    return;
 3708                };
 3709                new_pane
 3710            }
 3711        };
 3712
 3713        if action.clone {
 3714            clone_active_item(
 3715                self.database_id(),
 3716                &self.active_pane,
 3717                &destination,
 3718                action.focus,
 3719                window,
 3720                cx,
 3721            )
 3722        } else {
 3723            move_active_item(
 3724                &self.active_pane,
 3725                &destination,
 3726                action.focus,
 3727                true,
 3728                window,
 3729                cx,
 3730            );
 3731        }
 3732    }
 3733
 3734    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3735        self.center.bounding_box_for_pane(pane)
 3736    }
 3737
 3738    pub fn find_pane_in_direction(
 3739        &mut self,
 3740        direction: SplitDirection,
 3741        cx: &App,
 3742    ) -> Option<Entity<Pane>> {
 3743        self.center
 3744            .find_pane_in_direction(&self.active_pane, direction, cx)
 3745            .cloned()
 3746    }
 3747
 3748    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3749        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3750            self.center.swap(&self.active_pane, &to);
 3751            cx.notify();
 3752        }
 3753    }
 3754
 3755    pub fn resize_pane(
 3756        &mut self,
 3757        axis: gpui::Axis,
 3758        amount: Pixels,
 3759        window: &mut Window,
 3760        cx: &mut Context<Self>,
 3761    ) {
 3762        let docks = self.all_docks();
 3763        let active_dock = docks
 3764            .into_iter()
 3765            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3766
 3767        if let Some(dock) = active_dock {
 3768            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3769                return;
 3770            };
 3771            match dock.read(cx).position() {
 3772                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 3773                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 3774                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 3775            }
 3776        } else {
 3777            self.center
 3778                .resize(&self.active_pane, axis, amount, &self.bounds);
 3779        }
 3780        cx.notify();
 3781    }
 3782
 3783    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 3784        self.center.reset_pane_sizes();
 3785        cx.notify();
 3786    }
 3787
 3788    fn handle_pane_focused(
 3789        &mut self,
 3790        pane: Entity<Pane>,
 3791        window: &mut Window,
 3792        cx: &mut Context<Self>,
 3793    ) {
 3794        // This is explicitly hoisted out of the following check for pane identity as
 3795        // terminal panel panes are not registered as a center panes.
 3796        self.status_bar.update(cx, |status_bar, cx| {
 3797            status_bar.set_active_pane(&pane, window, cx);
 3798        });
 3799        if self.active_pane != pane {
 3800            self.set_active_pane(&pane, window, cx);
 3801        }
 3802
 3803        if self.last_active_center_pane.is_none() {
 3804            self.last_active_center_pane = Some(pane.downgrade());
 3805        }
 3806
 3807        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 3808        if pane.read(cx).is_zoomed() {
 3809            self.zoomed = Some(pane.downgrade().into());
 3810        } else {
 3811            self.zoomed = None;
 3812        }
 3813        self.zoomed_position = None;
 3814        cx.emit(Event::ZoomChanged);
 3815        self.update_active_view_for_followers(window, cx);
 3816        pane.update(cx, |pane, _| {
 3817            pane.track_alternate_file_items();
 3818        });
 3819
 3820        cx.notify();
 3821    }
 3822
 3823    fn set_active_pane(
 3824        &mut self,
 3825        pane: &Entity<Pane>,
 3826        window: &mut Window,
 3827        cx: &mut Context<Self>,
 3828    ) {
 3829        self.active_pane = pane.clone();
 3830        self.active_item_path_changed(window, cx);
 3831        self.last_active_center_pane = Some(pane.downgrade());
 3832    }
 3833
 3834    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3835        self.update_active_view_for_followers(window, cx);
 3836    }
 3837
 3838    fn handle_pane_event(
 3839        &mut self,
 3840        pane: &Entity<Pane>,
 3841        event: &pane::Event,
 3842        window: &mut Window,
 3843        cx: &mut Context<Self>,
 3844    ) {
 3845        let mut serialize_workspace = true;
 3846        match event {
 3847            pane::Event::AddItem { item } => {
 3848                item.added_to_pane(self, pane.clone(), window, cx);
 3849                cx.emit(Event::ItemAdded {
 3850                    item: item.boxed_clone(),
 3851                });
 3852            }
 3853            pane::Event::Split(direction) => {
 3854                self.split_and_clone(pane.clone(), *direction, window, cx);
 3855            }
 3856            pane::Event::JoinIntoNext => {
 3857                self.join_pane_into_next(pane.clone(), window, cx);
 3858            }
 3859            pane::Event::JoinAll => {
 3860                self.join_all_panes(window, cx);
 3861            }
 3862            pane::Event::Remove { focus_on_pane } => {
 3863                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 3864            }
 3865            pane::Event::ActivateItem {
 3866                local,
 3867                focus_changed,
 3868            } => {
 3869                window.invalidate_character_coordinates();
 3870
 3871                pane.update(cx, |pane, _| {
 3872                    pane.track_alternate_file_items();
 3873                });
 3874                if *local {
 3875                    self.unfollow_in_pane(pane, window, cx);
 3876                }
 3877                serialize_workspace = *focus_changed || pane != self.active_pane();
 3878                if pane == self.active_pane() {
 3879                    self.active_item_path_changed(window, cx);
 3880                    self.update_active_view_for_followers(window, cx);
 3881                } else if *local {
 3882                    self.set_active_pane(pane, window, cx);
 3883                }
 3884            }
 3885            pane::Event::UserSavedItem { item, save_intent } => {
 3886                cx.emit(Event::UserSavedItem {
 3887                    pane: pane.downgrade(),
 3888                    item: item.boxed_clone(),
 3889                    save_intent: *save_intent,
 3890                });
 3891                serialize_workspace = false;
 3892            }
 3893            pane::Event::ChangeItemTitle => {
 3894                if *pane == self.active_pane {
 3895                    self.active_item_path_changed(window, cx);
 3896                }
 3897                serialize_workspace = false;
 3898            }
 3899            pane::Event::RemoveItem { .. } => {}
 3900            pane::Event::RemovedItem { item } => {
 3901                cx.emit(Event::ActiveItemChanged);
 3902                self.update_window_edited(window, cx);
 3903                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 3904                    && entry.get().entity_id() == pane.entity_id() {
 3905                        entry.remove();
 3906                    }
 3907            }
 3908            pane::Event::Focus => {
 3909                window.invalidate_character_coordinates();
 3910                self.handle_pane_focused(pane.clone(), window, cx);
 3911            }
 3912            pane::Event::ZoomIn => {
 3913                if *pane == self.active_pane {
 3914                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 3915                    if pane.read(cx).has_focus(window, cx) {
 3916                        self.zoomed = Some(pane.downgrade().into());
 3917                        self.zoomed_position = None;
 3918                        cx.emit(Event::ZoomChanged);
 3919                    }
 3920                    cx.notify();
 3921                }
 3922            }
 3923            pane::Event::ZoomOut => {
 3924                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3925                if self.zoomed_position.is_none() {
 3926                    self.zoomed = None;
 3927                    cx.emit(Event::ZoomChanged);
 3928                }
 3929                cx.notify();
 3930            }
 3931            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 3932        }
 3933
 3934        if serialize_workspace {
 3935            self.serialize_workspace(window, cx);
 3936        }
 3937    }
 3938
 3939    pub fn unfollow_in_pane(
 3940        &mut self,
 3941        pane: &Entity<Pane>,
 3942        window: &mut Window,
 3943        cx: &mut Context<Workspace>,
 3944    ) -> Option<CollaboratorId> {
 3945        let leader_id = self.leader_for_pane(pane)?;
 3946        self.unfollow(leader_id, window, cx);
 3947        Some(leader_id)
 3948    }
 3949
 3950    pub fn split_pane(
 3951        &mut self,
 3952        pane_to_split: Entity<Pane>,
 3953        split_direction: SplitDirection,
 3954        window: &mut Window,
 3955        cx: &mut Context<Self>,
 3956    ) -> Entity<Pane> {
 3957        let new_pane = self.add_pane(window, cx);
 3958        self.center
 3959            .split(&pane_to_split, &new_pane, split_direction)
 3960            .unwrap();
 3961        cx.notify();
 3962        new_pane
 3963    }
 3964
 3965    pub fn split_and_clone(
 3966        &mut self,
 3967        pane: Entity<Pane>,
 3968        direction: SplitDirection,
 3969        window: &mut Window,
 3970        cx: &mut Context<Self>,
 3971    ) -> Option<Entity<Pane>> {
 3972        let item = pane.read(cx).active_item()?;
 3973        let maybe_pane_handle =
 3974            if let Some(clone) = item.clone_on_split(self.database_id(), window, cx) {
 3975                let new_pane = self.add_pane(window, cx);
 3976                new_pane.update(cx, |pane, cx| {
 3977                    pane.add_item(clone, true, true, None, window, cx)
 3978                });
 3979                self.center.split(&pane, &new_pane, direction).unwrap();
 3980                Some(new_pane)
 3981            } else {
 3982                None
 3983            };
 3984        cx.notify();
 3985        maybe_pane_handle
 3986    }
 3987
 3988    pub fn split_pane_with_item(
 3989        &mut self,
 3990        pane_to_split: WeakEntity<Pane>,
 3991        split_direction: SplitDirection,
 3992        from: WeakEntity<Pane>,
 3993        item_id_to_move: EntityId,
 3994        window: &mut Window,
 3995        cx: &mut Context<Self>,
 3996    ) {
 3997        let Some(pane_to_split) = pane_to_split.upgrade() else {
 3998            return;
 3999        };
 4000        let Some(from) = from.upgrade() else {
 4001            return;
 4002        };
 4003
 4004        let new_pane = self.add_pane(window, cx);
 4005        move_item(&from, &new_pane, item_id_to_move, 0, true, window, cx);
 4006        self.center
 4007            .split(&pane_to_split, &new_pane, split_direction)
 4008            .unwrap();
 4009        cx.notify();
 4010    }
 4011
 4012    pub fn split_pane_with_project_entry(
 4013        &mut self,
 4014        pane_to_split: WeakEntity<Pane>,
 4015        split_direction: SplitDirection,
 4016        project_entry: ProjectEntryId,
 4017        window: &mut Window,
 4018        cx: &mut Context<Self>,
 4019    ) -> Option<Task<Result<()>>> {
 4020        let pane_to_split = pane_to_split.upgrade()?;
 4021        let new_pane = self.add_pane(window, cx);
 4022        self.center
 4023            .split(&pane_to_split, &new_pane, split_direction)
 4024            .unwrap();
 4025
 4026        let path = self.project.read(cx).path_for_entry(project_entry, cx)?;
 4027        let task = self.open_path(path, Some(new_pane.downgrade()), true, window, cx);
 4028        Some(cx.foreground_executor().spawn(async move {
 4029            task.await?;
 4030            Ok(())
 4031        }))
 4032    }
 4033
 4034    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4035        let active_item = self.active_pane.read(cx).active_item();
 4036        for pane in &self.panes {
 4037            join_pane_into_active(&self.active_pane, pane, window, cx);
 4038        }
 4039        if let Some(active_item) = active_item {
 4040            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4041        }
 4042        cx.notify();
 4043    }
 4044
 4045    pub fn join_pane_into_next(
 4046        &mut self,
 4047        pane: Entity<Pane>,
 4048        window: &mut Window,
 4049        cx: &mut Context<Self>,
 4050    ) {
 4051        let next_pane = self
 4052            .find_pane_in_direction(SplitDirection::Right, cx)
 4053            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4054            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4055            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4056        let Some(next_pane) = next_pane else {
 4057            return;
 4058        };
 4059        move_all_items(&pane, &next_pane, window, cx);
 4060        cx.notify();
 4061    }
 4062
 4063    fn remove_pane(
 4064        &mut self,
 4065        pane: Entity<Pane>,
 4066        focus_on: Option<Entity<Pane>>,
 4067        window: &mut Window,
 4068        cx: &mut Context<Self>,
 4069    ) {
 4070        if self.center.remove(&pane).unwrap() {
 4071            self.force_remove_pane(&pane, &focus_on, window, cx);
 4072            self.unfollow_in_pane(&pane, window, cx);
 4073            self.last_leaders_by_pane.remove(&pane.downgrade());
 4074            for removed_item in pane.read(cx).items() {
 4075                self.panes_by_item.remove(&removed_item.item_id());
 4076            }
 4077
 4078            cx.notify();
 4079        } else {
 4080            self.active_item_path_changed(window, cx);
 4081        }
 4082        cx.emit(Event::PaneRemoved);
 4083    }
 4084
 4085    pub fn panes(&self) -> &[Entity<Pane>] {
 4086        &self.panes
 4087    }
 4088
 4089    pub fn active_pane(&self) -> &Entity<Pane> {
 4090        &self.active_pane
 4091    }
 4092
 4093    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4094        for dock in self.all_docks() {
 4095            if dock.focus_handle(cx).contains_focused(window, cx)
 4096                && let Some(pane) = dock
 4097                    .read(cx)
 4098                    .active_panel()
 4099                    .and_then(|panel| panel.pane(cx))
 4100                {
 4101                    return pane;
 4102                }
 4103        }
 4104        self.active_pane().clone()
 4105    }
 4106
 4107    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4108        self.find_pane_in_direction(SplitDirection::Right, cx)
 4109            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4110            .unwrap_or_else(|| {
 4111                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4112            })
 4113            .clone()
 4114    }
 4115
 4116    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4117        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4118        weak_pane.upgrade()
 4119    }
 4120
 4121    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4122        self.follower_states.retain(|leader_id, state| {
 4123            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4124                for item in state.items_by_leader_view_id.values() {
 4125                    item.view.set_leader_id(None, window, cx);
 4126                }
 4127                false
 4128            } else {
 4129                true
 4130            }
 4131        });
 4132        cx.notify();
 4133    }
 4134
 4135    pub fn start_following(
 4136        &mut self,
 4137        leader_id: impl Into<CollaboratorId>,
 4138        window: &mut Window,
 4139        cx: &mut Context<Self>,
 4140    ) -> Option<Task<Result<()>>> {
 4141        let leader_id = leader_id.into();
 4142        let pane = self.active_pane().clone();
 4143
 4144        self.last_leaders_by_pane
 4145            .insert(pane.downgrade(), leader_id);
 4146        self.unfollow(leader_id, window, cx);
 4147        self.unfollow_in_pane(&pane, window, cx);
 4148        self.follower_states.insert(
 4149            leader_id,
 4150            FollowerState {
 4151                center_pane: pane.clone(),
 4152                dock_pane: None,
 4153                active_view_id: None,
 4154                items_by_leader_view_id: Default::default(),
 4155            },
 4156        );
 4157        cx.notify();
 4158
 4159        match leader_id {
 4160            CollaboratorId::PeerId(leader_peer_id) => {
 4161                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4162                let project_id = self.project.read(cx).remote_id();
 4163                let request = self.app_state.client.request(proto::Follow {
 4164                    room_id,
 4165                    project_id,
 4166                    leader_id: Some(leader_peer_id),
 4167                });
 4168
 4169                Some(cx.spawn_in(window, async move |this, cx| {
 4170                    let response = request.await?;
 4171                    this.update(cx, |this, _| {
 4172                        let state = this
 4173                            .follower_states
 4174                            .get_mut(&leader_id)
 4175                            .context("following interrupted")?;
 4176                        state.active_view_id = response
 4177                            .active_view
 4178                            .as_ref()
 4179                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4180                        anyhow::Ok(())
 4181                    })??;
 4182                    if let Some(view) = response.active_view {
 4183                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4184                    }
 4185                    this.update_in(cx, |this, window, cx| {
 4186                        this.leader_updated(leader_id, window, cx)
 4187                    })?;
 4188                    Ok(())
 4189                }))
 4190            }
 4191            CollaboratorId::Agent => {
 4192                self.leader_updated(leader_id, window, cx)?;
 4193                Some(Task::ready(Ok(())))
 4194            }
 4195        }
 4196    }
 4197
 4198    pub fn follow_next_collaborator(
 4199        &mut self,
 4200        _: &FollowNextCollaborator,
 4201        window: &mut Window,
 4202        cx: &mut Context<Self>,
 4203    ) {
 4204        let collaborators = self.project.read(cx).collaborators();
 4205        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4206            let mut collaborators = collaborators.keys().copied();
 4207            for peer_id in collaborators.by_ref() {
 4208                if CollaboratorId::PeerId(peer_id) == leader_id {
 4209                    break;
 4210                }
 4211            }
 4212            collaborators.next().map(CollaboratorId::PeerId)
 4213        } else if let Some(last_leader_id) =
 4214            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4215        {
 4216            match last_leader_id {
 4217                CollaboratorId::PeerId(peer_id) => {
 4218                    if collaborators.contains_key(peer_id) {
 4219                        Some(*last_leader_id)
 4220                    } else {
 4221                        None
 4222                    }
 4223                }
 4224                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4225            }
 4226        } else {
 4227            None
 4228        };
 4229
 4230        let pane = self.active_pane.clone();
 4231        let Some(leader_id) = next_leader_id.or_else(|| {
 4232            Some(CollaboratorId::PeerId(
 4233                collaborators.keys().copied().next()?,
 4234            ))
 4235        }) else {
 4236            return;
 4237        };
 4238        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4239            return;
 4240        }
 4241        if let Some(task) = self.start_following(leader_id, window, cx) {
 4242            task.detach_and_log_err(cx)
 4243        }
 4244    }
 4245
 4246    pub fn follow(
 4247        &mut self,
 4248        leader_id: impl Into<CollaboratorId>,
 4249        window: &mut Window,
 4250        cx: &mut Context<Self>,
 4251    ) {
 4252        let leader_id = leader_id.into();
 4253
 4254        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4255            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4256                return;
 4257            };
 4258            let room = room.read(cx);
 4259            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4260                return;
 4261            };
 4262
 4263            let project = self.project.read(cx);
 4264
 4265            let other_project_id = match remote_participant.location {
 4266                call::ParticipantLocation::External => None,
 4267                call::ParticipantLocation::UnsharedProject => None,
 4268                call::ParticipantLocation::SharedProject { project_id } => {
 4269                    if Some(project_id) == project.remote_id() {
 4270                        None
 4271                    } else {
 4272                        Some(project_id)
 4273                    }
 4274                }
 4275            };
 4276
 4277            // if they are active in another project, follow there.
 4278            if let Some(project_id) = other_project_id {
 4279                let app_state = self.app_state.clone();
 4280                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4281                    .detach_and_log_err(cx);
 4282            }
 4283        }
 4284
 4285        // if you're already following, find the right pane and focus it.
 4286        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4287            window.focus(&follower_state.pane().focus_handle(cx));
 4288
 4289            return;
 4290        }
 4291
 4292        // Otherwise, follow.
 4293        if let Some(task) = self.start_following(leader_id, window, cx) {
 4294            task.detach_and_log_err(cx)
 4295        }
 4296    }
 4297
 4298    pub fn unfollow(
 4299        &mut self,
 4300        leader_id: impl Into<CollaboratorId>,
 4301        window: &mut Window,
 4302        cx: &mut Context<Self>,
 4303    ) -> Option<()> {
 4304        cx.notify();
 4305
 4306        let leader_id = leader_id.into();
 4307        let state = self.follower_states.remove(&leader_id)?;
 4308        for (_, item) in state.items_by_leader_view_id {
 4309            item.view.set_leader_id(None, window, cx);
 4310        }
 4311
 4312        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4313            let project_id = self.project.read(cx).remote_id();
 4314            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4315            self.app_state
 4316                .client
 4317                .send(proto::Unfollow {
 4318                    room_id,
 4319                    project_id,
 4320                    leader_id: Some(leader_peer_id),
 4321                })
 4322                .log_err();
 4323        }
 4324
 4325        Some(())
 4326    }
 4327
 4328    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4329        self.follower_states.contains_key(&id.into())
 4330    }
 4331
 4332    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4333        cx.emit(Event::ActiveItemChanged);
 4334        let active_entry = self.active_project_path(cx);
 4335        self.project
 4336            .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 4337
 4338        self.update_window_title(window, cx);
 4339    }
 4340
 4341    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4342        let project = self.project().read(cx);
 4343        let mut title = String::new();
 4344
 4345        for (i, name) in project.worktree_root_names(cx).enumerate() {
 4346            if i > 0 {
 4347                title.push_str(", ");
 4348            }
 4349            title.push_str(name);
 4350        }
 4351
 4352        if title.is_empty() {
 4353            title = "empty project".to_string();
 4354        }
 4355
 4356        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4357            let filename = path
 4358                .path
 4359                .file_name()
 4360                .map(|s| s.to_string_lossy())
 4361                .or_else(|| {
 4362                    Some(Cow::Borrowed(
 4363                        project
 4364                            .worktree_for_id(path.worktree_id, cx)?
 4365                            .read(cx)
 4366                            .root_name(),
 4367                    ))
 4368                });
 4369
 4370            if let Some(filename) = filename {
 4371                title.push_str("");
 4372                title.push_str(filename.as_ref());
 4373            }
 4374        }
 4375
 4376        if project.is_via_collab() {
 4377            title.push_str("");
 4378        } else if project.is_shared() {
 4379            title.push_str("");
 4380        }
 4381
 4382        if let Some(last_title) = self.last_window_title.as_ref()
 4383            && &title == last_title {
 4384                return;
 4385            }
 4386        window.set_window_title(&title);
 4387        self.last_window_title = Some(title);
 4388    }
 4389
 4390    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4391        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4392        if is_edited != self.window_edited {
 4393            self.window_edited = is_edited;
 4394            window.set_window_edited(self.window_edited)
 4395        }
 4396    }
 4397
 4398    fn update_item_dirty_state(
 4399        &mut self,
 4400        item: &dyn ItemHandle,
 4401        window: &mut Window,
 4402        cx: &mut App,
 4403    ) {
 4404        let is_dirty = item.is_dirty(cx);
 4405        let item_id = item.item_id();
 4406        let was_dirty = self.dirty_items.contains_key(&item_id);
 4407        if is_dirty == was_dirty {
 4408            return;
 4409        }
 4410        if was_dirty {
 4411            self.dirty_items.remove(&item_id);
 4412            self.update_window_edited(window, cx);
 4413            return;
 4414        }
 4415        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4416            let s = item.on_release(
 4417                cx,
 4418                Box::new(move |cx| {
 4419                    window_handle
 4420                        .update(cx, |this, window, cx| {
 4421                            this.dirty_items.remove(&item_id);
 4422                            this.update_window_edited(window, cx)
 4423                        })
 4424                        .ok();
 4425                }),
 4426            );
 4427            self.dirty_items.insert(item_id, s);
 4428            self.update_window_edited(window, cx);
 4429        }
 4430    }
 4431
 4432    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4433        if self.notifications.is_empty() {
 4434            None
 4435        } else {
 4436            Some(
 4437                div()
 4438                    .absolute()
 4439                    .right_3()
 4440                    .bottom_3()
 4441                    .w_112()
 4442                    .h_full()
 4443                    .flex()
 4444                    .flex_col()
 4445                    .justify_end()
 4446                    .gap_2()
 4447                    .children(
 4448                        self.notifications
 4449                            .iter()
 4450                            .map(|(_, notification)| notification.clone().into_any()),
 4451                    ),
 4452            )
 4453        }
 4454    }
 4455
 4456    // RPC handlers
 4457
 4458    fn active_view_for_follower(
 4459        &self,
 4460        follower_project_id: Option<u64>,
 4461        window: &mut Window,
 4462        cx: &mut Context<Self>,
 4463    ) -> Option<proto::View> {
 4464        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4465        let item = item?;
 4466        let leader_id = self
 4467            .pane_for(&*item)
 4468            .and_then(|pane| self.leader_for_pane(&pane));
 4469        let leader_peer_id = match leader_id {
 4470            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4471            Some(CollaboratorId::Agent) | None => None,
 4472        };
 4473
 4474        let item_handle = item.to_followable_item_handle(cx)?;
 4475        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4476        let variant = item_handle.to_state_proto(window, cx)?;
 4477
 4478        if item_handle.is_project_item(window, cx)
 4479            && (follower_project_id.is_none()
 4480                || follower_project_id != self.project.read(cx).remote_id())
 4481        {
 4482            return None;
 4483        }
 4484
 4485        Some(proto::View {
 4486            id: id.to_proto(),
 4487            leader_id: leader_peer_id,
 4488            variant: Some(variant),
 4489            panel_id: panel_id.map(|id| id as i32),
 4490        })
 4491    }
 4492
 4493    fn handle_follow(
 4494        &mut self,
 4495        follower_project_id: Option<u64>,
 4496        window: &mut Window,
 4497        cx: &mut Context<Self>,
 4498    ) -> proto::FollowResponse {
 4499        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4500
 4501        cx.notify();
 4502        proto::FollowResponse {
 4503            // TODO: Remove after version 0.145.x stabilizes.
 4504            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4505            views: active_view.iter().cloned().collect(),
 4506            active_view,
 4507        }
 4508    }
 4509
 4510    fn handle_update_followers(
 4511        &mut self,
 4512        leader_id: PeerId,
 4513        message: proto::UpdateFollowers,
 4514        _window: &mut Window,
 4515        _cx: &mut Context<Self>,
 4516    ) {
 4517        self.leader_updates_tx
 4518            .unbounded_send((leader_id, message))
 4519            .ok();
 4520    }
 4521
 4522    async fn process_leader_update(
 4523        this: &WeakEntity<Self>,
 4524        leader_id: PeerId,
 4525        update: proto::UpdateFollowers,
 4526        cx: &mut AsyncWindowContext,
 4527    ) -> Result<()> {
 4528        match update.variant.context("invalid update")? {
 4529            proto::update_followers::Variant::CreateView(view) => {
 4530                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4531                let should_add_view = this.update(cx, |this, _| {
 4532                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4533                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4534                    } else {
 4535                        anyhow::Ok(false)
 4536                    }
 4537                })??;
 4538
 4539                if should_add_view {
 4540                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4541                }
 4542            }
 4543            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4544                let should_add_view = this.update(cx, |this, _| {
 4545                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4546                        state.active_view_id = update_active_view
 4547                            .view
 4548                            .as_ref()
 4549                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4550
 4551                        if state.active_view_id.is_some_and(|view_id| {
 4552                            !state.items_by_leader_view_id.contains_key(&view_id)
 4553                        }) {
 4554                            anyhow::Ok(true)
 4555                        } else {
 4556                            anyhow::Ok(false)
 4557                        }
 4558                    } else {
 4559                        anyhow::Ok(false)
 4560                    }
 4561                })??;
 4562
 4563                if should_add_view
 4564                    && let Some(view) = update_active_view.view {
 4565                        Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4566                    }
 4567            }
 4568            proto::update_followers::Variant::UpdateView(update_view) => {
 4569                let variant = update_view.variant.context("missing update view variant")?;
 4570                let id = update_view.id.context("missing update view id")?;
 4571                let mut tasks = Vec::new();
 4572                this.update_in(cx, |this, window, cx| {
 4573                    let project = this.project.clone();
 4574                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4575                        let view_id = ViewId::from_proto(id.clone())?;
 4576                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4577                            tasks.push(item.view.apply_update_proto(
 4578                                &project,
 4579                                variant.clone(),
 4580                                window,
 4581                                cx,
 4582                            ));
 4583                        }
 4584                    }
 4585                    anyhow::Ok(())
 4586                })??;
 4587                try_join_all(tasks).await.log_err();
 4588            }
 4589        }
 4590        this.update_in(cx, |this, window, cx| {
 4591            this.leader_updated(leader_id, window, cx)
 4592        })?;
 4593        Ok(())
 4594    }
 4595
 4596    async fn add_view_from_leader(
 4597        this: WeakEntity<Self>,
 4598        leader_id: PeerId,
 4599        view: &proto::View,
 4600        cx: &mut AsyncWindowContext,
 4601    ) -> Result<()> {
 4602        let this = this.upgrade().context("workspace dropped")?;
 4603
 4604        let Some(id) = view.id.clone() else {
 4605            anyhow::bail!("no id for view");
 4606        };
 4607        let id = ViewId::from_proto(id)?;
 4608        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4609
 4610        let pane = this.update(cx, |this, _cx| {
 4611            let state = this
 4612                .follower_states
 4613                .get(&leader_id.into())
 4614                .context("stopped following")?;
 4615            anyhow::Ok(state.pane().clone())
 4616        })??;
 4617        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4618            let client = this.read(cx).client().clone();
 4619            pane.items().find_map(|item| {
 4620                let item = item.to_followable_item_handle(cx)?;
 4621                if item.remote_id(&client, window, cx) == Some(id) {
 4622                    Some(item)
 4623                } else {
 4624                    None
 4625                }
 4626            })
 4627        })?;
 4628        let item = if let Some(existing_item) = existing_item {
 4629            existing_item
 4630        } else {
 4631            let variant = view.variant.clone();
 4632            anyhow::ensure!(variant.is_some(), "missing view variant");
 4633
 4634            let task = cx.update(|window, cx| {
 4635                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4636            })?;
 4637
 4638            let Some(task) = task else {
 4639                anyhow::bail!(
 4640                    "failed to construct view from leader (maybe from a different version of zed?)"
 4641                );
 4642            };
 4643
 4644            let mut new_item = task.await?;
 4645            pane.update_in(cx, |pane, window, cx| {
 4646                let mut item_to_remove = None;
 4647                for (ix, item) in pane.items().enumerate() {
 4648                    if let Some(item) = item.to_followable_item_handle(cx) {
 4649                        match new_item.dedup(item.as_ref(), window, cx) {
 4650                            Some(item::Dedup::KeepExisting) => {
 4651                                new_item =
 4652                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4653                                break;
 4654                            }
 4655                            Some(item::Dedup::ReplaceExisting) => {
 4656                                item_to_remove = Some((ix, item.item_id()));
 4657                                break;
 4658                            }
 4659                            None => {}
 4660                        }
 4661                    }
 4662                }
 4663
 4664                if let Some((ix, id)) = item_to_remove {
 4665                    pane.remove_item(id, false, false, window, cx);
 4666                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4667                }
 4668            })?;
 4669
 4670            new_item
 4671        };
 4672
 4673        this.update_in(cx, |this, window, cx| {
 4674            let state = this.follower_states.get_mut(&leader_id.into())?;
 4675            item.set_leader_id(Some(leader_id.into()), window, cx);
 4676            state.items_by_leader_view_id.insert(
 4677                id,
 4678                FollowerView {
 4679                    view: item,
 4680                    location: panel_id,
 4681                },
 4682            );
 4683
 4684            Some(())
 4685        })?;
 4686
 4687        Ok(())
 4688    }
 4689
 4690    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4691        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4692            return;
 4693        };
 4694
 4695        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4696            let buffer_entity_id = agent_location.buffer.entity_id();
 4697            let view_id = ViewId {
 4698                creator: CollaboratorId::Agent,
 4699                id: buffer_entity_id.as_u64(),
 4700            };
 4701            follower_state.active_view_id = Some(view_id);
 4702
 4703            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4704                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4705                hash_map::Entry::Vacant(entry) => {
 4706                    let existing_view =
 4707                        follower_state
 4708                            .center_pane
 4709                            .read(cx)
 4710                            .items()
 4711                            .find_map(|item| {
 4712                                let item = item.to_followable_item_handle(cx)?;
 4713                                if item.is_singleton(cx)
 4714                                    && item.project_item_model_ids(cx).as_slice()
 4715                                        == [buffer_entity_id]
 4716                                {
 4717                                    Some(item)
 4718                                } else {
 4719                                    None
 4720                                }
 4721                            });
 4722                    let view = existing_view.or_else(|| {
 4723                        agent_location.buffer.upgrade().and_then(|buffer| {
 4724                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4725                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4726                            })?
 4727                            .to_followable_item_handle(cx)
 4728                        })
 4729                    });
 4730
 4731                    if let Some(view) = view {
 4732                        Some(entry.insert(FollowerView {
 4733                            view,
 4734                            location: None,
 4735                        }))
 4736                    } else {
 4737                        None
 4738                    }
 4739                }
 4740            };
 4741
 4742            if let Some(item) = item {
 4743                item.view
 4744                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4745                item.view
 4746                    .update_agent_location(agent_location.position, window, cx);
 4747            }
 4748        } else {
 4749            follower_state.active_view_id = None;
 4750        }
 4751
 4752        self.leader_updated(CollaboratorId::Agent, window, cx);
 4753    }
 4754
 4755    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4756        let mut is_project_item = true;
 4757        let mut update = proto::UpdateActiveView::default();
 4758        if window.is_window_active() {
 4759            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4760
 4761            if let Some(item) = active_item
 4762                && item.item_focus_handle(cx).contains_focused(window, cx) {
 4763                    let leader_id = self
 4764                        .pane_for(&*item)
 4765                        .and_then(|pane| self.leader_for_pane(&pane));
 4766                    let leader_peer_id = match leader_id {
 4767                        Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4768                        Some(CollaboratorId::Agent) | None => None,
 4769                    };
 4770
 4771                    if let Some(item) = item.to_followable_item_handle(cx) {
 4772                        let id = item
 4773                            .remote_id(&self.app_state.client, window, cx)
 4774                            .map(|id| id.to_proto());
 4775
 4776                        if let Some(id) = id
 4777                            && let Some(variant) = item.to_state_proto(window, cx) {
 4778                                let view = Some(proto::View {
 4779                                    id: id.clone(),
 4780                                    leader_id: leader_peer_id,
 4781                                    variant: Some(variant),
 4782                                    panel_id: panel_id.map(|id| id as i32),
 4783                                });
 4784
 4785                                is_project_item = item.is_project_item(window, cx);
 4786                                update = proto::UpdateActiveView {
 4787                                    view,
 4788                                    // TODO: Remove after version 0.145.x stabilizes.
 4789                                    id,
 4790                                    leader_id: leader_peer_id,
 4791                                };
 4792                            };
 4793                    }
 4794                }
 4795        }
 4796
 4797        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 4798        if active_view_id != self.last_active_view_id.as_ref() {
 4799            self.last_active_view_id = active_view_id.cloned();
 4800            self.update_followers(
 4801                is_project_item,
 4802                proto::update_followers::Variant::UpdateActiveView(update),
 4803                window,
 4804                cx,
 4805            );
 4806        }
 4807    }
 4808
 4809    fn active_item_for_followers(
 4810        &self,
 4811        window: &mut Window,
 4812        cx: &mut App,
 4813    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 4814        let mut active_item = None;
 4815        let mut panel_id = None;
 4816        for dock in self.all_docks() {
 4817            if dock.focus_handle(cx).contains_focused(window, cx)
 4818                && let Some(panel) = dock.read(cx).active_panel()
 4819                    && let Some(pane) = panel.pane(cx)
 4820                        && let Some(item) = pane.read(cx).active_item() {
 4821                            active_item = Some(item);
 4822                            panel_id = panel.remote_id();
 4823                            break;
 4824                        }
 4825        }
 4826
 4827        if active_item.is_none() {
 4828            active_item = self.active_pane().read(cx).active_item();
 4829        }
 4830        (active_item, panel_id)
 4831    }
 4832
 4833    fn update_followers(
 4834        &self,
 4835        project_only: bool,
 4836        update: proto::update_followers::Variant,
 4837        _: &mut Window,
 4838        cx: &mut App,
 4839    ) -> Option<()> {
 4840        // If this update only applies to for followers in the current project,
 4841        // then skip it unless this project is shared. If it applies to all
 4842        // followers, regardless of project, then set `project_id` to none,
 4843        // indicating that it goes to all followers.
 4844        let project_id = if project_only {
 4845            Some(self.project.read(cx).remote_id()?)
 4846        } else {
 4847            None
 4848        };
 4849        self.app_state().workspace_store.update(cx, |store, cx| {
 4850            store.update_followers(project_id, update, cx)
 4851        })
 4852    }
 4853
 4854    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 4855        self.follower_states.iter().find_map(|(leader_id, state)| {
 4856            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 4857                Some(*leader_id)
 4858            } else {
 4859                None
 4860            }
 4861        })
 4862    }
 4863
 4864    fn leader_updated(
 4865        &mut self,
 4866        leader_id: impl Into<CollaboratorId>,
 4867        window: &mut Window,
 4868        cx: &mut Context<Self>,
 4869    ) -> Option<Box<dyn ItemHandle>> {
 4870        cx.notify();
 4871
 4872        let leader_id = leader_id.into();
 4873        let (panel_id, item) = match leader_id {
 4874            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 4875            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 4876        };
 4877
 4878        let state = self.follower_states.get(&leader_id)?;
 4879        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 4880        let pane;
 4881        if let Some(panel_id) = panel_id {
 4882            pane = self
 4883                .activate_panel_for_proto_id(panel_id, window, cx)?
 4884                .pane(cx)?;
 4885            let state = self.follower_states.get_mut(&leader_id)?;
 4886            state.dock_pane = Some(pane.clone());
 4887        } else {
 4888            pane = state.center_pane.clone();
 4889            let state = self.follower_states.get_mut(&leader_id)?;
 4890            if let Some(dock_pane) = state.dock_pane.take() {
 4891                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 4892            }
 4893        }
 4894
 4895        pane.update(cx, |pane, cx| {
 4896            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 4897            if let Some(index) = pane.index_for_item(item.as_ref()) {
 4898                pane.activate_item(index, false, false, window, cx);
 4899            } else {
 4900                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 4901            }
 4902
 4903            if focus_active_item {
 4904                pane.focus_active_item(window, cx)
 4905            }
 4906        });
 4907
 4908        Some(item)
 4909    }
 4910
 4911    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 4912        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 4913        let active_view_id = state.active_view_id?;
 4914        Some(
 4915            state
 4916                .items_by_leader_view_id
 4917                .get(&active_view_id)?
 4918                .view
 4919                .boxed_clone(),
 4920        )
 4921    }
 4922
 4923    fn active_item_for_peer(
 4924        &self,
 4925        peer_id: PeerId,
 4926        window: &mut Window,
 4927        cx: &mut Context<Self>,
 4928    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 4929        let call = self.active_call()?;
 4930        let room = call.read(cx).room()?.read(cx);
 4931        let participant = room.remote_participant_for_peer_id(peer_id)?;
 4932        let leader_in_this_app;
 4933        let leader_in_this_project;
 4934        match participant.location {
 4935            call::ParticipantLocation::SharedProject { project_id } => {
 4936                leader_in_this_app = true;
 4937                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 4938            }
 4939            call::ParticipantLocation::UnsharedProject => {
 4940                leader_in_this_app = true;
 4941                leader_in_this_project = false;
 4942            }
 4943            call::ParticipantLocation::External => {
 4944                leader_in_this_app = false;
 4945                leader_in_this_project = false;
 4946            }
 4947        };
 4948        let state = self.follower_states.get(&peer_id.into())?;
 4949        let mut item_to_activate = None;
 4950        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 4951            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 4952                && (leader_in_this_project || !item.view.is_project_item(window, cx)) {
 4953                    item_to_activate = Some((item.location, item.view.boxed_clone()));
 4954                }
 4955        } else if let Some(shared_screen) =
 4956            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 4957        {
 4958            item_to_activate = Some((None, Box::new(shared_screen)));
 4959        }
 4960        item_to_activate
 4961    }
 4962
 4963    fn shared_screen_for_peer(
 4964        &self,
 4965        peer_id: PeerId,
 4966        pane: &Entity<Pane>,
 4967        window: &mut Window,
 4968        cx: &mut App,
 4969    ) -> Option<Entity<SharedScreen>> {
 4970        let call = self.active_call()?;
 4971        let room = call.read(cx).room()?.clone();
 4972        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 4973        let track = participant.video_tracks.values().next()?.clone();
 4974        let user = participant.user.clone();
 4975
 4976        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 4977            if item.read(cx).peer_id == peer_id {
 4978                return Some(item);
 4979            }
 4980        }
 4981
 4982        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 4983    }
 4984
 4985    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4986        if window.is_window_active() {
 4987            self.update_active_view_for_followers(window, cx);
 4988
 4989            if let Some(database_id) = self.database_id {
 4990                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 4991                    .detach();
 4992            }
 4993        } else {
 4994            for pane in &self.panes {
 4995                pane.update(cx, |pane, cx| {
 4996                    if let Some(item) = pane.active_item() {
 4997                        item.workspace_deactivated(window, cx);
 4998                    }
 4999                    for item in pane.items() {
 5000                        if matches!(
 5001                            item.workspace_settings(cx).autosave,
 5002                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5003                        ) {
 5004                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5005                                .detach_and_log_err(cx);
 5006                        }
 5007                    }
 5008                });
 5009            }
 5010        }
 5011    }
 5012
 5013    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5014        self.active_call.as_ref().map(|(call, _)| call)
 5015    }
 5016
 5017    fn on_active_call_event(
 5018        &mut self,
 5019        _: &Entity<ActiveCall>,
 5020        event: &call::room::Event,
 5021        window: &mut Window,
 5022        cx: &mut Context<Self>,
 5023    ) {
 5024        match event {
 5025            call::room::Event::ParticipantLocationChanged { participant_id }
 5026            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5027                self.leader_updated(participant_id, window, cx);
 5028            }
 5029            _ => {}
 5030        }
 5031    }
 5032
 5033    pub fn database_id(&self) -> Option<WorkspaceId> {
 5034        self.database_id
 5035    }
 5036
 5037    pub fn session_id(&self) -> Option<String> {
 5038        self.session_id.clone()
 5039    }
 5040
 5041    fn local_paths(&self, cx: &App) -> Option<Vec<Arc<Path>>> {
 5042        let project = self.project().read(cx);
 5043
 5044        if project.is_local() {
 5045            Some(
 5046                project
 5047                    .visible_worktrees(cx)
 5048                    .map(|worktree| worktree.read(cx).abs_path())
 5049                    .collect::<Vec<_>>(),
 5050            )
 5051        } else {
 5052            None
 5053        }
 5054    }
 5055
 5056    fn update_ssh_paths(&mut self, cx: &App) {
 5057        let project = self.project().read(cx);
 5058        if !project.is_local() {
 5059            let paths: Vec<String> = project
 5060                .visible_worktrees(cx)
 5061                .map(|worktree| worktree.read(cx).abs_path().to_string_lossy().to_string())
 5062                .collect();
 5063            if let Some(ssh_project) = &mut self.serialized_ssh_project {
 5064                ssh_project.paths = paths;
 5065            }
 5066        }
 5067    }
 5068
 5069    fn serialize_ssh_paths(&mut self, window: &mut Window, cx: &mut Context<Workspace>) {
 5070        if self._schedule_serialize_ssh_paths.is_none() {
 5071            self._schedule_serialize_ssh_paths =
 5072                Some(cx.spawn_in(window, async move |this, cx| {
 5073                    cx.background_executor()
 5074                        .timer(SERIALIZATION_THROTTLE_TIME)
 5075                        .await;
 5076                    this.update_in(cx, |this, window, cx| {
 5077                        let task = if let Some(ssh_project) = &this.serialized_ssh_project {
 5078                            let ssh_project_id = ssh_project.id;
 5079                            let ssh_project_paths = ssh_project.paths.clone();
 5080                            window.spawn(cx, async move |_| {
 5081                                persistence::DB
 5082                                    .update_ssh_project_paths(ssh_project_id, ssh_project_paths)
 5083                                    .await
 5084                            })
 5085                        } else {
 5086                            Task::ready(Err(anyhow::anyhow!("No SSH project to serialize")))
 5087                        };
 5088                        task.detach();
 5089                        this._schedule_serialize_ssh_paths.take();
 5090                    })
 5091                    .log_err();
 5092                }));
 5093        }
 5094    }
 5095
 5096    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5097        match member {
 5098            Member::Axis(PaneAxis { members, .. }) => {
 5099                for child in members.iter() {
 5100                    self.remove_panes(child.clone(), window, cx)
 5101                }
 5102            }
 5103            Member::Pane(pane) => {
 5104                self.force_remove_pane(&pane, &None, window, cx);
 5105            }
 5106        }
 5107    }
 5108
 5109    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5110        self.session_id.take();
 5111        self.serialize_workspace_internal(window, cx)
 5112    }
 5113
 5114    fn force_remove_pane(
 5115        &mut self,
 5116        pane: &Entity<Pane>,
 5117        focus_on: &Option<Entity<Pane>>,
 5118        window: &mut Window,
 5119        cx: &mut Context<Workspace>,
 5120    ) {
 5121        self.panes.retain(|p| p != pane);
 5122        if let Some(focus_on) = focus_on {
 5123            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5124        } else {
 5125            if self.active_pane() == pane {
 5126                self.panes
 5127                    .last()
 5128                    .unwrap()
 5129                    .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5130            }
 5131        }
 5132        if self.last_active_center_pane == Some(pane.downgrade()) {
 5133            self.last_active_center_pane = None;
 5134        }
 5135        cx.notify();
 5136    }
 5137
 5138    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5139        if self._schedule_serialize_workspace.is_none() {
 5140            self._schedule_serialize_workspace =
 5141                Some(cx.spawn_in(window, async move |this, cx| {
 5142                    cx.background_executor()
 5143                        .timer(SERIALIZATION_THROTTLE_TIME)
 5144                        .await;
 5145                    this.update_in(cx, |this, window, cx| {
 5146                        this.serialize_workspace_internal(window, cx).detach();
 5147                        this._schedule_serialize_workspace.take();
 5148                    })
 5149                    .log_err();
 5150                }));
 5151        }
 5152    }
 5153
 5154    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5155        let Some(database_id) = self.database_id() else {
 5156            return Task::ready(());
 5157        };
 5158
 5159        fn serialize_pane_handle(
 5160            pane_handle: &Entity<Pane>,
 5161            window: &mut Window,
 5162            cx: &mut App,
 5163        ) -> SerializedPane {
 5164            let (items, active, pinned_count) = {
 5165                let pane = pane_handle.read(cx);
 5166                let active_item_id = pane.active_item().map(|item| item.item_id());
 5167                (
 5168                    pane.items()
 5169                        .filter_map(|handle| {
 5170                            let handle = handle.to_serializable_item_handle(cx)?;
 5171
 5172                            Some(SerializedItem {
 5173                                kind: Arc::from(handle.serialized_item_kind()),
 5174                                item_id: handle.item_id().as_u64(),
 5175                                active: Some(handle.item_id()) == active_item_id,
 5176                                preview: pane.is_active_preview_item(handle.item_id()),
 5177                            })
 5178                        })
 5179                        .collect::<Vec<_>>(),
 5180                    pane.has_focus(window, cx),
 5181                    pane.pinned_count(),
 5182                )
 5183            };
 5184
 5185            SerializedPane::new(items, active, pinned_count)
 5186        }
 5187
 5188        fn build_serialized_pane_group(
 5189            pane_group: &Member,
 5190            window: &mut Window,
 5191            cx: &mut App,
 5192        ) -> SerializedPaneGroup {
 5193            match pane_group {
 5194                Member::Axis(PaneAxis {
 5195                    axis,
 5196                    members,
 5197                    flexes,
 5198                    bounding_boxes: _,
 5199                }) => SerializedPaneGroup::Group {
 5200                    axis: SerializedAxis(*axis),
 5201                    children: members
 5202                        .iter()
 5203                        .map(|member| build_serialized_pane_group(member, window, cx))
 5204                        .collect::<Vec<_>>(),
 5205                    flexes: Some(flexes.lock().clone()),
 5206                },
 5207                Member::Pane(pane_handle) => {
 5208                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5209                }
 5210            }
 5211        }
 5212
 5213        fn build_serialized_docks(
 5214            this: &Workspace,
 5215            window: &mut Window,
 5216            cx: &mut App,
 5217        ) -> DockStructure {
 5218            let left_dock = this.left_dock.read(cx);
 5219            let left_visible = left_dock.is_open();
 5220            let left_active_panel = left_dock
 5221                .active_panel()
 5222                .map(|panel| panel.persistent_name().to_string());
 5223            let left_dock_zoom = left_dock
 5224                .active_panel()
 5225                .map(|panel| panel.is_zoomed(window, cx))
 5226                .unwrap_or(false);
 5227
 5228            let right_dock = this.right_dock.read(cx);
 5229            let right_visible = right_dock.is_open();
 5230            let right_active_panel = right_dock
 5231                .active_panel()
 5232                .map(|panel| panel.persistent_name().to_string());
 5233            let right_dock_zoom = right_dock
 5234                .active_panel()
 5235                .map(|panel| panel.is_zoomed(window, cx))
 5236                .unwrap_or(false);
 5237
 5238            let bottom_dock = this.bottom_dock.read(cx);
 5239            let bottom_visible = bottom_dock.is_open();
 5240            let bottom_active_panel = bottom_dock
 5241                .active_panel()
 5242                .map(|panel| panel.persistent_name().to_string());
 5243            let bottom_dock_zoom = bottom_dock
 5244                .active_panel()
 5245                .map(|panel| panel.is_zoomed(window, cx))
 5246                .unwrap_or(false);
 5247
 5248            DockStructure {
 5249                left: DockData {
 5250                    visible: left_visible,
 5251                    active_panel: left_active_panel,
 5252                    zoom: left_dock_zoom,
 5253                },
 5254                right: DockData {
 5255                    visible: right_visible,
 5256                    active_panel: right_active_panel,
 5257                    zoom: right_dock_zoom,
 5258                },
 5259                bottom: DockData {
 5260                    visible: bottom_visible,
 5261                    active_panel: bottom_active_panel,
 5262                    zoom: bottom_dock_zoom,
 5263                },
 5264            }
 5265        }
 5266
 5267        match self.serialize_workspace_location(cx) {
 5268            WorkspaceLocation::Location(location) => {
 5269                let breakpoints = self.project.update(cx, |project, cx| {
 5270                    project
 5271                        .breakpoint_store()
 5272                        .read(cx)
 5273                        .all_source_breakpoints(cx)
 5274                });
 5275
 5276                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5277                let docks = build_serialized_docks(self, window, cx);
 5278                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5279                let serialized_workspace = SerializedWorkspace {
 5280                    id: database_id,
 5281                    location,
 5282                    center_group,
 5283                    window_bounds,
 5284                    display: Default::default(),
 5285                    docks,
 5286                    centered_layout: self.centered_layout,
 5287                    session_id: self.session_id.clone(),
 5288                    breakpoints,
 5289                    window_id: Some(window.window_handle().window_id().as_u64()),
 5290                };
 5291
 5292                window.spawn(cx, async move |_| {
 5293                    persistence::DB.save_workspace(serialized_workspace).await;
 5294                })
 5295            }
 5296            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5297                persistence::DB
 5298                    .set_session_id(database_id, None)
 5299                    .await
 5300                    .log_err();
 5301            }),
 5302            WorkspaceLocation::None => Task::ready(()),
 5303        }
 5304    }
 5305
 5306    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5307        if let Some(ssh_project) = &self.serialized_ssh_project {
 5308            WorkspaceLocation::Location(SerializedWorkspaceLocation::Ssh(ssh_project.clone()))
 5309        } else if let Some(local_paths) = self.local_paths(cx) {
 5310            if !local_paths.is_empty() {
 5311                WorkspaceLocation::Location(SerializedWorkspaceLocation::from_local_paths(
 5312                    local_paths,
 5313                ))
 5314            } else {
 5315                WorkspaceLocation::DetachFromSession
 5316            }
 5317        } else {
 5318            WorkspaceLocation::None
 5319        }
 5320    }
 5321
 5322    fn update_history(&self, cx: &mut App) {
 5323        let Some(id) = self.database_id() else {
 5324            return;
 5325        };
 5326        let location = match self.serialize_workspace_location(cx) {
 5327            WorkspaceLocation::Location(location) => location,
 5328            _ => return,
 5329        };
 5330        if let Some(manager) = HistoryManager::global(cx) {
 5331            manager.update(cx, |this, cx| {
 5332                this.update_history(id, HistoryManagerEntry::new(id, &location), cx);
 5333            });
 5334        }
 5335    }
 5336
 5337    async fn serialize_items(
 5338        this: &WeakEntity<Self>,
 5339        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5340        cx: &mut AsyncWindowContext,
 5341    ) -> Result<()> {
 5342        const CHUNK_SIZE: usize = 200;
 5343
 5344        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5345
 5346        while let Some(items_received) = serializable_items.next().await {
 5347            let unique_items =
 5348                items_received
 5349                    .into_iter()
 5350                    .fold(HashMap::default(), |mut acc, item| {
 5351                        acc.entry(item.item_id()).or_insert(item);
 5352                        acc
 5353                    });
 5354
 5355            // We use into_iter() here so that the references to the items are moved into
 5356            // the tasks and not kept alive while we're sleeping.
 5357            for (_, item) in unique_items.into_iter() {
 5358                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5359                    item.serialize(workspace, false, window, cx)
 5360                }) {
 5361                    cx.background_spawn(async move { task.await.log_err() })
 5362                        .detach();
 5363                }
 5364            }
 5365
 5366            cx.background_executor()
 5367                .timer(SERIALIZATION_THROTTLE_TIME)
 5368                .await;
 5369        }
 5370
 5371        Ok(())
 5372    }
 5373
 5374    pub(crate) fn enqueue_item_serialization(
 5375        &mut self,
 5376        item: Box<dyn SerializableItemHandle>,
 5377    ) -> Result<()> {
 5378        self.serializable_items_tx
 5379            .unbounded_send(item)
 5380            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5381    }
 5382
 5383    pub(crate) fn load_workspace(
 5384        serialized_workspace: SerializedWorkspace,
 5385        paths_to_open: Vec<Option<ProjectPath>>,
 5386        window: &mut Window,
 5387        cx: &mut Context<Workspace>,
 5388    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5389        cx.spawn_in(window, async move |workspace, cx| {
 5390            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5391
 5392            let mut center_group = None;
 5393            let mut center_items = None;
 5394
 5395            // Traverse the splits tree and add to things
 5396            if let Some((group, active_pane, items)) = serialized_workspace
 5397                .center_group
 5398                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5399                .await
 5400            {
 5401                center_items = Some(items);
 5402                center_group = Some((group, active_pane))
 5403            }
 5404
 5405            let mut items_by_project_path = HashMap::default();
 5406            let mut item_ids_by_kind = HashMap::default();
 5407            let mut all_deserialized_items = Vec::default();
 5408            cx.update(|_, cx| {
 5409                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5410                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5411                        item_ids_by_kind
 5412                            .entry(serializable_item_handle.serialized_item_kind())
 5413                            .or_insert(Vec::new())
 5414                            .push(item.item_id().as_u64() as ItemId);
 5415                    }
 5416
 5417                    if let Some(project_path) = item.project_path(cx) {
 5418                        items_by_project_path.insert(project_path, item.clone());
 5419                    }
 5420                    all_deserialized_items.push(item);
 5421                }
 5422            })?;
 5423
 5424            let opened_items = paths_to_open
 5425                .into_iter()
 5426                .map(|path_to_open| {
 5427                    path_to_open
 5428                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5429                })
 5430                .collect::<Vec<_>>();
 5431
 5432            // Remove old panes from workspace panes list
 5433            workspace.update_in(cx, |workspace, window, cx| {
 5434                if let Some((center_group, active_pane)) = center_group {
 5435                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5436
 5437                    // Swap workspace center group
 5438                    workspace.center = PaneGroup::with_root(center_group);
 5439                    if let Some(active_pane) = active_pane {
 5440                        workspace.set_active_pane(&active_pane, window, cx);
 5441                        cx.focus_self(window);
 5442                    } else {
 5443                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5444                    }
 5445                }
 5446
 5447                let docks = serialized_workspace.docks;
 5448
 5449                for (dock, serialized_dock) in [
 5450                    (&mut workspace.right_dock, docks.right),
 5451                    (&mut workspace.left_dock, docks.left),
 5452                    (&mut workspace.bottom_dock, docks.bottom),
 5453                ]
 5454                .iter_mut()
 5455                {
 5456                    dock.update(cx, |dock, cx| {
 5457                        dock.serialized_dock = Some(serialized_dock.clone());
 5458                        dock.restore_state(window, cx);
 5459                    });
 5460                }
 5461
 5462                cx.notify();
 5463            })?;
 5464
 5465            let _ = project
 5466                .update(cx, |project, cx| {
 5467                    project
 5468                        .breakpoint_store()
 5469                        .update(cx, |breakpoint_store, cx| {
 5470                            breakpoint_store
 5471                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5472                        })
 5473                })?
 5474                .await;
 5475
 5476            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5477            // after loading the items, we might have different items and in order to avoid
 5478            // the database filling up, we delete items that haven't been loaded now.
 5479            //
 5480            // The items that have been loaded, have been saved after they've been added to the workspace.
 5481            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5482                item_ids_by_kind
 5483                    .into_iter()
 5484                    .map(|(item_kind, loaded_items)| {
 5485                        SerializableItemRegistry::cleanup(
 5486                            item_kind,
 5487                            serialized_workspace.id,
 5488                            loaded_items,
 5489                            window,
 5490                            cx,
 5491                        )
 5492                        .log_err()
 5493                    })
 5494                    .collect::<Vec<_>>()
 5495            })?;
 5496
 5497            futures::future::join_all(clean_up_tasks).await;
 5498
 5499            workspace
 5500                .update_in(cx, |workspace, window, cx| {
 5501                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5502                    workspace.serialize_workspace_internal(window, cx).detach();
 5503
 5504                    // Ensure that we mark the window as edited if we did load dirty items
 5505                    workspace.update_window_edited(window, cx);
 5506                })
 5507                .ok();
 5508
 5509            Ok(opened_items)
 5510        })
 5511    }
 5512
 5513    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5514        self.add_workspace_actions_listeners(div, window, cx)
 5515            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5516            .on_action(cx.listener(Self::close_all_items_and_panes))
 5517            .on_action(cx.listener(Self::save_all))
 5518            .on_action(cx.listener(Self::send_keystrokes))
 5519            .on_action(cx.listener(Self::add_folder_to_project))
 5520            .on_action(cx.listener(Self::follow_next_collaborator))
 5521            .on_action(cx.listener(Self::close_window))
 5522            .on_action(cx.listener(Self::activate_pane_at_index))
 5523            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5524            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5525            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5526            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5527                let pane = workspace.active_pane().clone();
 5528                workspace.unfollow_in_pane(&pane, window, cx);
 5529            }))
 5530            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5531                workspace
 5532                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5533                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5534            }))
 5535            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5536                workspace
 5537                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5538                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5539            }))
 5540            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5541                workspace
 5542                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5543                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5544            }))
 5545            .on_action(
 5546                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5547                    workspace.activate_previous_pane(window, cx)
 5548                }),
 5549            )
 5550            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5551                workspace.activate_next_pane(window, cx)
 5552            }))
 5553            .on_action(
 5554                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5555                    workspace.activate_next_window(cx)
 5556                }),
 5557            )
 5558            .on_action(
 5559                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5560                    workspace.activate_previous_window(cx)
 5561                }),
 5562            )
 5563            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5564                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5565            }))
 5566            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5567                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5568            }))
 5569            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5570                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5571            }))
 5572            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5573                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5574            }))
 5575            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5576                workspace.activate_next_pane(window, cx)
 5577            }))
 5578            .on_action(cx.listener(
 5579                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5580                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5581                },
 5582            ))
 5583            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5584                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5585            }))
 5586            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5587                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5588            }))
 5589            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5590                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5591            }))
 5592            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5593                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5594            }))
 5595            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5596                this.toggle_dock(DockPosition::Left, window, cx);
 5597            }))
 5598            .on_action(cx.listener(
 5599                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5600                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5601                },
 5602            ))
 5603            .on_action(cx.listener(
 5604                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5605                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5606                },
 5607            ))
 5608            .on_action(cx.listener(
 5609                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5610                    if !workspace.close_active_dock(window, cx) {
 5611                        cx.propagate();
 5612                    }
 5613                },
 5614            ))
 5615            .on_action(
 5616                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5617                    workspace.close_all_docks(window, cx);
 5618                }),
 5619            )
 5620            .on_action(cx.listener(
 5621                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5622                    workspace.clear_all_notifications(cx);
 5623                },
 5624            ))
 5625            .on_action(cx.listener(
 5626                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5627                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5628                        workspace.suppress_notification(&notification_id, cx);
 5629                    }
 5630                },
 5631            ))
 5632            .on_action(cx.listener(
 5633                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5634                    workspace.reopen_closed_item(window, cx).detach();
 5635                },
 5636            ))
 5637            .on_action(cx.listener(
 5638                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5639                    for dock in workspace.all_docks() {
 5640                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5641                            let Some(panel) = dock.read(cx).active_panel() else {
 5642                                return;
 5643                            };
 5644
 5645                            // Set to `None`, then the size will fall back to the default.
 5646                            panel.clone().set_size(None, window, cx);
 5647
 5648                            return;
 5649                        }
 5650                    }
 5651                },
 5652            ))
 5653            .on_action(cx.listener(
 5654                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5655                    for dock in workspace.all_docks() {
 5656                        if let Some(panel) = dock.read(cx).visible_panel() {
 5657                            // Set to `None`, then the size will fall back to the default.
 5658                            panel.clone().set_size(None, window, cx);
 5659                        }
 5660                    }
 5661                },
 5662            ))
 5663            .on_action(cx.listener(
 5664                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5665                    adjust_active_dock_size_by_px(
 5666                        px_with_ui_font_fallback(act.px, cx),
 5667                        workspace,
 5668                        window,
 5669                        cx,
 5670                    );
 5671                },
 5672            ))
 5673            .on_action(cx.listener(
 5674                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5675                    adjust_active_dock_size_by_px(
 5676                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5677                        workspace,
 5678                        window,
 5679                        cx,
 5680                    );
 5681                },
 5682            ))
 5683            .on_action(cx.listener(
 5684                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5685                    adjust_open_docks_size_by_px(
 5686                        px_with_ui_font_fallback(act.px, cx),
 5687                        workspace,
 5688                        window,
 5689                        cx,
 5690                    );
 5691                },
 5692            ))
 5693            .on_action(cx.listener(
 5694                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5695                    adjust_open_docks_size_by_px(
 5696                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5697                        workspace,
 5698                        window,
 5699                        cx,
 5700                    );
 5701                },
 5702            ))
 5703            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5704            .on_action(cx.listener(Workspace::cancel))
 5705    }
 5706
 5707    #[cfg(any(test, feature = "test-support"))]
 5708    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5709        use node_runtime::NodeRuntime;
 5710        use session::Session;
 5711
 5712        let client = project.read(cx).client();
 5713        let user_store = project.read(cx).user_store();
 5714        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5715        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5716        window.activate_window();
 5717        let app_state = Arc::new(AppState {
 5718            languages: project.read(cx).languages().clone(),
 5719            workspace_store,
 5720            client,
 5721            user_store,
 5722            fs: project.read(cx).fs().clone(),
 5723            build_window_options: |_, _| Default::default(),
 5724            node_runtime: NodeRuntime::unavailable(),
 5725            session,
 5726        });
 5727        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5728        workspace
 5729            .active_pane
 5730            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5731        workspace
 5732    }
 5733
 5734    pub fn register_action<A: Action>(
 5735        &mut self,
 5736        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5737    ) -> &mut Self {
 5738        let callback = Arc::new(callback);
 5739
 5740        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5741            let callback = callback.clone();
 5742            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5743                (callback)(workspace, event, window, cx)
 5744            }))
 5745        }));
 5746        self
 5747    }
 5748    pub fn register_action_renderer(
 5749        &mut self,
 5750        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5751    ) -> &mut Self {
 5752        self.workspace_actions.push(Box::new(callback));
 5753        self
 5754    }
 5755
 5756    fn add_workspace_actions_listeners(
 5757        &self,
 5758        mut div: Div,
 5759        window: &mut Window,
 5760        cx: &mut Context<Self>,
 5761    ) -> Div {
 5762        for action in self.workspace_actions.iter() {
 5763            div = (action)(div, self, window, cx)
 5764        }
 5765        div
 5766    }
 5767
 5768    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5769        self.modal_layer.read(cx).has_active_modal()
 5770    }
 5771
 5772    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5773        self.modal_layer.read(cx).active_modal()
 5774    }
 5775
 5776    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5777    where
 5778        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5779    {
 5780        self.modal_layer.update(cx, |modal_layer, cx| {
 5781            modal_layer.toggle_modal(window, cx, build)
 5782        })
 5783    }
 5784
 5785    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 5786        self.toast_layer
 5787            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 5788    }
 5789
 5790    pub fn toggle_centered_layout(
 5791        &mut self,
 5792        _: &ToggleCenteredLayout,
 5793        _: &mut Window,
 5794        cx: &mut Context<Self>,
 5795    ) {
 5796        self.centered_layout = !self.centered_layout;
 5797        if let Some(database_id) = self.database_id() {
 5798            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 5799                .detach_and_log_err(cx);
 5800        }
 5801        cx.notify();
 5802    }
 5803
 5804    fn adjust_padding(padding: Option<f32>) -> f32 {
 5805        padding
 5806            .unwrap_or(Self::DEFAULT_PADDING)
 5807            .clamp(0.0, Self::MAX_PADDING)
 5808    }
 5809
 5810    fn render_dock(
 5811        &self,
 5812        position: DockPosition,
 5813        dock: &Entity<Dock>,
 5814        window: &mut Window,
 5815        cx: &mut App,
 5816    ) -> Option<Div> {
 5817        if self.zoomed_position == Some(position) {
 5818            return None;
 5819        }
 5820
 5821        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 5822            let pane = panel.pane(cx)?;
 5823            let follower_states = &self.follower_states;
 5824            leader_border_for_pane(follower_states, &pane, window, cx)
 5825        });
 5826
 5827        Some(
 5828            div()
 5829                .flex()
 5830                .flex_none()
 5831                .overflow_hidden()
 5832                .child(dock.clone())
 5833                .children(leader_border),
 5834        )
 5835    }
 5836
 5837    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 5838        window.root().flatten()
 5839    }
 5840
 5841    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 5842        self.zoomed.as_ref()
 5843    }
 5844
 5845    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 5846        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5847            return;
 5848        };
 5849        let windows = cx.windows();
 5850        let Some(next_window) = windows
 5851            .iter()
 5852            .cycle()
 5853            .skip_while(|window| window.window_id() != current_window_id)
 5854            .nth(1)
 5855        else {
 5856            return;
 5857        };
 5858        next_window
 5859            .update(cx, |_, window, _| window.activate_window())
 5860            .ok();
 5861    }
 5862
 5863    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 5864        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5865            return;
 5866        };
 5867        let windows = cx.windows();
 5868        let Some(prev_window) = windows
 5869            .iter()
 5870            .rev()
 5871            .cycle()
 5872            .skip_while(|window| window.window_id() != current_window_id)
 5873            .nth(1)
 5874        else {
 5875            return;
 5876        };
 5877        prev_window
 5878            .update(cx, |_, window, _| window.activate_window())
 5879            .ok();
 5880    }
 5881
 5882    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 5883        if cx.stop_active_drag(window) {
 5884            return;
 5885        } else if let Some((notification_id, _)) = self.notifications.pop() {
 5886            dismiss_app_notification(&notification_id, cx);
 5887        } else {
 5888            cx.propagate();
 5889        }
 5890    }
 5891
 5892    fn adjust_dock_size_by_px(
 5893        &mut self,
 5894        panel_size: Pixels,
 5895        dock_pos: DockPosition,
 5896        px: Pixels,
 5897        window: &mut Window,
 5898        cx: &mut Context<Self>,
 5899    ) {
 5900        match dock_pos {
 5901            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 5902            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 5903            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 5904        }
 5905    }
 5906
 5907    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5908        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 5909
 5910        self.left_dock.update(cx, |left_dock, cx| {
 5911            if WorkspaceSettings::get_global(cx)
 5912                .resize_all_panels_in_dock
 5913                .contains(&DockPosition::Left)
 5914            {
 5915                left_dock.resize_all_panels(Some(size), window, cx);
 5916            } else {
 5917                left_dock.resize_active_panel(Some(size), window, cx);
 5918            }
 5919        });
 5920    }
 5921
 5922    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5923        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 5924        self.left_dock.read_with(cx, |left_dock, cx| {
 5925            let left_dock_size = left_dock
 5926                .active_panel_size(window, cx)
 5927                .unwrap_or(Pixels(0.0));
 5928            if left_dock_size + size > self.bounds.right() {
 5929                size = self.bounds.right() - left_dock_size
 5930            }
 5931        });
 5932        self.right_dock.update(cx, |right_dock, cx| {
 5933            if WorkspaceSettings::get_global(cx)
 5934                .resize_all_panels_in_dock
 5935                .contains(&DockPosition::Right)
 5936            {
 5937                right_dock.resize_all_panels(Some(size), window, cx);
 5938            } else {
 5939                right_dock.resize_active_panel(Some(size), window, cx);
 5940            }
 5941        });
 5942    }
 5943
 5944    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5945        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 5946        self.bottom_dock.update(cx, |bottom_dock, cx| {
 5947            if WorkspaceSettings::get_global(cx)
 5948                .resize_all_panels_in_dock
 5949                .contains(&DockPosition::Bottom)
 5950            {
 5951                bottom_dock.resize_all_panels(Some(size), window, cx);
 5952            } else {
 5953                bottom_dock.resize_active_panel(Some(size), window, cx);
 5954            }
 5955        });
 5956    }
 5957
 5958    fn toggle_edit_predictions_all_files(
 5959        &mut self,
 5960        _: &ToggleEditPrediction,
 5961        _window: &mut Window,
 5962        cx: &mut Context<Self>,
 5963    ) {
 5964        let fs = self.project().read(cx).fs().clone();
 5965        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 5966        update_settings_file::<AllLanguageSettings>(fs, cx, move |file, _| {
 5967            file.defaults.show_edit_predictions = Some(!show_edit_predictions)
 5968        });
 5969    }
 5970}
 5971
 5972fn leader_border_for_pane(
 5973    follower_states: &HashMap<CollaboratorId, FollowerState>,
 5974    pane: &Entity<Pane>,
 5975    _: &Window,
 5976    cx: &App,
 5977) -> Option<Div> {
 5978    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 5979        if state.pane() == pane {
 5980            Some((*leader_id, state))
 5981        } else {
 5982            None
 5983        }
 5984    })?;
 5985
 5986    let mut leader_color = match leader_id {
 5987        CollaboratorId::PeerId(leader_peer_id) => {
 5988            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 5989            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 5990
 5991            cx.theme()
 5992                .players()
 5993                .color_for_participant(leader.participant_index.0)
 5994                .cursor
 5995        }
 5996        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 5997    };
 5998    leader_color.fade_out(0.3);
 5999    Some(
 6000        div()
 6001            .absolute()
 6002            .size_full()
 6003            .left_0()
 6004            .top_0()
 6005            .border_2()
 6006            .border_color(leader_color),
 6007    )
 6008}
 6009
 6010fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6011    ZED_WINDOW_POSITION
 6012        .zip(*ZED_WINDOW_SIZE)
 6013        .map(|(position, size)| Bounds {
 6014            origin: position,
 6015            size,
 6016        })
 6017}
 6018
 6019fn open_items(
 6020    serialized_workspace: Option<SerializedWorkspace>,
 6021    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6022    window: &mut Window,
 6023    cx: &mut Context<Workspace>,
 6024) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6025    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6026        Workspace::load_workspace(
 6027            serialized_workspace,
 6028            project_paths_to_open
 6029                .iter()
 6030                .map(|(_, project_path)| project_path)
 6031                .cloned()
 6032                .collect(),
 6033            window,
 6034            cx,
 6035        )
 6036    });
 6037
 6038    cx.spawn_in(window, async move |workspace, cx| {
 6039        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6040
 6041        if let Some(restored_items) = restored_items {
 6042            let restored_items = restored_items.await?;
 6043
 6044            let restored_project_paths = restored_items
 6045                .iter()
 6046                .filter_map(|item| {
 6047                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6048                        .ok()
 6049                        .flatten()
 6050                })
 6051                .collect::<HashSet<_>>();
 6052
 6053            for restored_item in restored_items {
 6054                opened_items.push(restored_item.map(Ok));
 6055            }
 6056
 6057            project_paths_to_open
 6058                .iter_mut()
 6059                .for_each(|(_, project_path)| {
 6060                    if let Some(project_path_to_open) = project_path
 6061                        && restored_project_paths.contains(project_path_to_open) {
 6062                            *project_path = None;
 6063                        }
 6064                });
 6065        } else {
 6066            for _ in 0..project_paths_to_open.len() {
 6067                opened_items.push(None);
 6068            }
 6069        }
 6070        assert!(opened_items.len() == project_paths_to_open.len());
 6071
 6072        let tasks =
 6073            project_paths_to_open
 6074                .into_iter()
 6075                .enumerate()
 6076                .map(|(ix, (abs_path, project_path))| {
 6077                    let workspace = workspace.clone();
 6078                    cx.spawn(async move |cx| {
 6079                        let file_project_path = project_path?;
 6080                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6081                            workspace.project().update(cx, |project, cx| {
 6082                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6083                            })
 6084                        });
 6085
 6086                        // We only want to open file paths here. If one of the items
 6087                        // here is a directory, it was already opened further above
 6088                        // with a `find_or_create_worktree`.
 6089                        if let Ok(task) = abs_path_task
 6090                            && task.await.map_or(true, |p| p.is_file()) {
 6091                                return Some((
 6092                                    ix,
 6093                                    workspace
 6094                                        .update_in(cx, |workspace, window, cx| {
 6095                                            workspace.open_path(
 6096                                                file_project_path,
 6097                                                None,
 6098                                                true,
 6099                                                window,
 6100                                                cx,
 6101                                            )
 6102                                        })
 6103                                        .log_err()?
 6104                                        .await,
 6105                                ));
 6106                            }
 6107                        None
 6108                    })
 6109                });
 6110
 6111        let tasks = tasks.collect::<Vec<_>>();
 6112
 6113        let tasks = futures::future::join_all(tasks);
 6114        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6115            opened_items[ix] = Some(path_open_result);
 6116        }
 6117
 6118        Ok(opened_items)
 6119    })
 6120}
 6121
 6122enum ActivateInDirectionTarget {
 6123    Pane(Entity<Pane>),
 6124    Dock(Entity<Dock>),
 6125}
 6126
 6127fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6128    workspace
 6129        .update(cx, |workspace, _, cx| {
 6130            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6131                struct DatabaseFailedNotification;
 6132
 6133                workspace.show_notification(
 6134                    NotificationId::unique::<DatabaseFailedNotification>(),
 6135                    cx,
 6136                    |cx| {
 6137                        cx.new(|cx| {
 6138                            MessageNotification::new("Failed to load the database file.", cx)
 6139                                .primary_message("File an Issue")
 6140                                .primary_icon(IconName::Plus)
 6141                                .primary_on_click(|window, cx| {
 6142                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6143                                })
 6144                        })
 6145                    },
 6146                );
 6147            }
 6148        })
 6149        .log_err();
 6150}
 6151
 6152fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6153    if val == 0 {
 6154        ThemeSettings::get_global(cx).ui_font_size(cx)
 6155    } else {
 6156        px(val as f32)
 6157    }
 6158}
 6159
 6160fn adjust_active_dock_size_by_px(
 6161    px: Pixels,
 6162    workspace: &mut Workspace,
 6163    window: &mut Window,
 6164    cx: &mut Context<Workspace>,
 6165) {
 6166    let Some(active_dock) = workspace
 6167        .all_docks()
 6168        .into_iter()
 6169        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6170    else {
 6171        return;
 6172    };
 6173    let dock = active_dock.read(cx);
 6174    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6175        return;
 6176    };
 6177    let dock_pos = dock.position();
 6178    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6179}
 6180
 6181fn adjust_open_docks_size_by_px(
 6182    px: Pixels,
 6183    workspace: &mut Workspace,
 6184    window: &mut Window,
 6185    cx: &mut Context<Workspace>,
 6186) {
 6187    let docks = workspace
 6188        .all_docks()
 6189        .into_iter()
 6190        .filter_map(|dock| {
 6191            if dock.read(cx).is_open() {
 6192                let dock = dock.read(cx);
 6193                let panel_size = dock.active_panel_size(window, cx)?;
 6194                let dock_pos = dock.position();
 6195                Some((panel_size, dock_pos, px))
 6196            } else {
 6197                None
 6198            }
 6199        })
 6200        .collect::<Vec<_>>();
 6201
 6202    docks
 6203        .into_iter()
 6204        .for_each(|(panel_size, dock_pos, offset)| {
 6205            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6206        });
 6207}
 6208
 6209impl Focusable for Workspace {
 6210    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6211        self.active_pane.focus_handle(cx)
 6212    }
 6213}
 6214
 6215#[derive(Clone)]
 6216struct DraggedDock(DockPosition);
 6217
 6218impl Render for DraggedDock {
 6219    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6220        gpui::Empty
 6221    }
 6222}
 6223
 6224impl Render for Workspace {
 6225    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6226        let mut context = KeyContext::new_with_defaults();
 6227        context.add("Workspace");
 6228        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6229        if let Some(status) = self
 6230            .debugger_provider
 6231            .as_ref()
 6232            .and_then(|provider| provider.active_thread_state(cx))
 6233        {
 6234            match status {
 6235                ThreadStatus::Running | ThreadStatus::Stepping => {
 6236                    context.add("debugger_running");
 6237                }
 6238                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6239                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6240            }
 6241        }
 6242
 6243        let centered_layout = self.centered_layout
 6244            && self.center.panes().len() == 1
 6245            && self.active_item(cx).is_some();
 6246        let render_padding = |size| {
 6247            (size > 0.0).then(|| {
 6248                div()
 6249                    .h_full()
 6250                    .w(relative(size))
 6251                    .bg(cx.theme().colors().editor_background)
 6252                    .border_color(cx.theme().colors().pane_group_border)
 6253            })
 6254        };
 6255        let paddings = if centered_layout {
 6256            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6257            (
 6258                render_padding(Self::adjust_padding(settings.left_padding)),
 6259                render_padding(Self::adjust_padding(settings.right_padding)),
 6260            )
 6261        } else {
 6262            (None, None)
 6263        };
 6264        let ui_font = theme::setup_ui_font(window, cx);
 6265
 6266        let theme = cx.theme().clone();
 6267        let colors = theme.colors();
 6268        let notification_entities = self
 6269            .notifications
 6270            .iter()
 6271            .map(|(_, notification)| notification.entity_id())
 6272            .collect::<Vec<_>>();
 6273        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6274
 6275        client_side_decorations(
 6276            self.actions(div(), window, cx)
 6277                .key_context(context)
 6278                .relative()
 6279                .size_full()
 6280                .flex()
 6281                .flex_col()
 6282                .font(ui_font)
 6283                .gap_0()
 6284                .justify_start()
 6285                .items_start()
 6286                .text_color(colors.text)
 6287                .overflow_hidden()
 6288                .children(self.titlebar_item.clone())
 6289                .on_modifiers_changed(move |_, _, cx| {
 6290                    for &id in &notification_entities {
 6291                        cx.notify(id);
 6292                    }
 6293                })
 6294                .child(
 6295                    div()
 6296                        .size_full()
 6297                        .relative()
 6298                        .flex_1()
 6299                        .flex()
 6300                        .flex_col()
 6301                        .child(
 6302                            div()
 6303                                .id("workspace")
 6304                                .bg(colors.background)
 6305                                .relative()
 6306                                .flex_1()
 6307                                .w_full()
 6308                                .flex()
 6309                                .flex_col()
 6310                                .overflow_hidden()
 6311                                .border_t_1()
 6312                                .border_b_1()
 6313                                .border_color(colors.border)
 6314                                .child({
 6315                                    let this = cx.entity();
 6316                                    canvas(
 6317                                        move |bounds, window, cx| {
 6318                                            this.update(cx, |this, cx| {
 6319                                                let bounds_changed = this.bounds != bounds;
 6320                                                this.bounds = bounds;
 6321
 6322                                                if bounds_changed {
 6323                                                    this.left_dock.update(cx, |dock, cx| {
 6324                                                        dock.clamp_panel_size(
 6325                                                            bounds.size.width,
 6326                                                            window,
 6327                                                            cx,
 6328                                                        )
 6329                                                    });
 6330
 6331                                                    this.right_dock.update(cx, |dock, cx| {
 6332                                                        dock.clamp_panel_size(
 6333                                                            bounds.size.width,
 6334                                                            window,
 6335                                                            cx,
 6336                                                        )
 6337                                                    });
 6338
 6339                                                    this.bottom_dock.update(cx, |dock, cx| {
 6340                                                        dock.clamp_panel_size(
 6341                                                            bounds.size.height,
 6342                                                            window,
 6343                                                            cx,
 6344                                                        )
 6345                                                    });
 6346                                                }
 6347                                            })
 6348                                        },
 6349                                        |_, _, _, _| {},
 6350                                    )
 6351                                    .absolute()
 6352                                    .size_full()
 6353                                })
 6354                                .when(self.zoomed.is_none(), |this| {
 6355                                    this.on_drag_move(cx.listener(
 6356                                        move |workspace,
 6357                                              e: &DragMoveEvent<DraggedDock>,
 6358                                              window,
 6359                                              cx| {
 6360                                            if workspace.previous_dock_drag_coordinates
 6361                                                != Some(e.event.position)
 6362                                            {
 6363                                                workspace.previous_dock_drag_coordinates =
 6364                                                    Some(e.event.position);
 6365                                                match e.drag(cx).0 {
 6366                                                    DockPosition::Left => {
 6367                                                        workspace.resize_left_dock(
 6368                                                            e.event.position.x
 6369                                                                - workspace.bounds.left(),
 6370                                                            window,
 6371                                                            cx,
 6372                                                        );
 6373                                                    }
 6374                                                    DockPosition::Right => {
 6375                                                        workspace.resize_right_dock(
 6376                                                            workspace.bounds.right()
 6377                                                                - e.event.position.x,
 6378                                                            window,
 6379                                                            cx,
 6380                                                        );
 6381                                                    }
 6382                                                    DockPosition::Bottom => {
 6383                                                        workspace.resize_bottom_dock(
 6384                                                            workspace.bounds.bottom()
 6385                                                                - e.event.position.y,
 6386                                                            window,
 6387                                                            cx,
 6388                                                        );
 6389                                                    }
 6390                                                };
 6391                                                workspace.serialize_workspace(window, cx);
 6392                                            }
 6393                                        },
 6394                                    ))
 6395                                })
 6396                                .child({
 6397                                    match bottom_dock_layout {
 6398                                        BottomDockLayout::Full => div()
 6399                                            .flex()
 6400                                            .flex_col()
 6401                                            .h_full()
 6402                                            .child(
 6403                                                div()
 6404                                                    .flex()
 6405                                                    .flex_row()
 6406                                                    .flex_1()
 6407                                                    .overflow_hidden()
 6408                                                    .children(self.render_dock(
 6409                                                        DockPosition::Left,
 6410                                                        &self.left_dock,
 6411                                                        window,
 6412                                                        cx,
 6413                                                    ))
 6414                                                    .child(
 6415                                                        div()
 6416                                                            .flex()
 6417                                                            .flex_col()
 6418                                                            .flex_1()
 6419                                                            .overflow_hidden()
 6420                                                            .child(
 6421                                                                h_flex()
 6422                                                                    .flex_1()
 6423                                                                    .when_some(
 6424                                                                        paddings.0,
 6425                                                                        |this, p| {
 6426                                                                            this.child(
 6427                                                                                p.border_r_1(),
 6428                                                                            )
 6429                                                                        },
 6430                                                                    )
 6431                                                                    .child(self.center.render(
 6432                                                                        self.zoomed.as_ref(),
 6433                                                                        &PaneRenderContext {
 6434                                                                            follower_states:
 6435                                                                                &self.follower_states,
 6436                                                                            active_call: self.active_call(),
 6437                                                                            active_pane: &self.active_pane,
 6438                                                                            app_state: &self.app_state,
 6439                                                                            project: &self.project,
 6440                                                                            workspace: &self.weak_self,
 6441                                                                        },
 6442                                                                        window,
 6443                                                                        cx,
 6444                                                                    ))
 6445                                                                    .when_some(
 6446                                                                        paddings.1,
 6447                                                                        |this, p| {
 6448                                                                            this.child(
 6449                                                                                p.border_l_1(),
 6450                                                                            )
 6451                                                                        },
 6452                                                                    ),
 6453                                                            ),
 6454                                                    )
 6455                                                    .children(self.render_dock(
 6456                                                        DockPosition::Right,
 6457                                                        &self.right_dock,
 6458                                                        window,
 6459                                                        cx,
 6460                                                    )),
 6461                                            )
 6462                                            .child(div().w_full().children(self.render_dock(
 6463                                                DockPosition::Bottom,
 6464                                                &self.bottom_dock,
 6465                                                window,
 6466                                                cx
 6467                                            ))),
 6468
 6469                                        BottomDockLayout::LeftAligned => div()
 6470                                            .flex()
 6471                                            .flex_row()
 6472                                            .h_full()
 6473                                            .child(
 6474                                                div()
 6475                                                    .flex()
 6476                                                    .flex_col()
 6477                                                    .flex_1()
 6478                                                    .h_full()
 6479                                                    .child(
 6480                                                        div()
 6481                                                            .flex()
 6482                                                            .flex_row()
 6483                                                            .flex_1()
 6484                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6485                                                            .child(
 6486                                                                div()
 6487                                                                    .flex()
 6488                                                                    .flex_col()
 6489                                                                    .flex_1()
 6490                                                                    .overflow_hidden()
 6491                                                                    .child(
 6492                                                                        h_flex()
 6493                                                                            .flex_1()
 6494                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6495                                                                            .child(self.center.render(
 6496                                                                                self.zoomed.as_ref(),
 6497                                                                                &PaneRenderContext {
 6498                                                                                    follower_states:
 6499                                                                                        &self.follower_states,
 6500                                                                                    active_call: self.active_call(),
 6501                                                                                    active_pane: &self.active_pane,
 6502                                                                                    app_state: &self.app_state,
 6503                                                                                    project: &self.project,
 6504                                                                                    workspace: &self.weak_self,
 6505                                                                                },
 6506                                                                                window,
 6507                                                                                cx,
 6508                                                                            ))
 6509                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6510                                                                    )
 6511                                                            )
 6512                                                    )
 6513                                                    .child(
 6514                                                        div()
 6515                                                            .w_full()
 6516                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6517                                                    ),
 6518                                            )
 6519                                            .children(self.render_dock(
 6520                                                DockPosition::Right,
 6521                                                &self.right_dock,
 6522                                                window,
 6523                                                cx,
 6524                                            )),
 6525
 6526                                        BottomDockLayout::RightAligned => div()
 6527                                            .flex()
 6528                                            .flex_row()
 6529                                            .h_full()
 6530                                            .children(self.render_dock(
 6531                                                DockPosition::Left,
 6532                                                &self.left_dock,
 6533                                                window,
 6534                                                cx,
 6535                                            ))
 6536                                            .child(
 6537                                                div()
 6538                                                    .flex()
 6539                                                    .flex_col()
 6540                                                    .flex_1()
 6541                                                    .h_full()
 6542                                                    .child(
 6543                                                        div()
 6544                                                            .flex()
 6545                                                            .flex_row()
 6546                                                            .flex_1()
 6547                                                            .child(
 6548                                                                div()
 6549                                                                    .flex()
 6550                                                                    .flex_col()
 6551                                                                    .flex_1()
 6552                                                                    .overflow_hidden()
 6553                                                                    .child(
 6554                                                                        h_flex()
 6555                                                                            .flex_1()
 6556                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6557                                                                            .child(self.center.render(
 6558                                                                                self.zoomed.as_ref(),
 6559                                                                                &PaneRenderContext {
 6560                                                                                    follower_states:
 6561                                                                                        &self.follower_states,
 6562                                                                                    active_call: self.active_call(),
 6563                                                                                    active_pane: &self.active_pane,
 6564                                                                                    app_state: &self.app_state,
 6565                                                                                    project: &self.project,
 6566                                                                                    workspace: &self.weak_self,
 6567                                                                                },
 6568                                                                                window,
 6569                                                                                cx,
 6570                                                                            ))
 6571                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6572                                                                    )
 6573                                                            )
 6574                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6575                                                    )
 6576                                                    .child(
 6577                                                        div()
 6578                                                            .w_full()
 6579                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6580                                                    ),
 6581                                            ),
 6582
 6583                                        BottomDockLayout::Contained => div()
 6584                                            .flex()
 6585                                            .flex_row()
 6586                                            .h_full()
 6587                                            .children(self.render_dock(
 6588                                                DockPosition::Left,
 6589                                                &self.left_dock,
 6590                                                window,
 6591                                                cx,
 6592                                            ))
 6593                                            .child(
 6594                                                div()
 6595                                                    .flex()
 6596                                                    .flex_col()
 6597                                                    .flex_1()
 6598                                                    .overflow_hidden()
 6599                                                    .child(
 6600                                                        h_flex()
 6601                                                            .flex_1()
 6602                                                            .when_some(paddings.0, |this, p| {
 6603                                                                this.child(p.border_r_1())
 6604                                                            })
 6605                                                            .child(self.center.render(
 6606                                                                self.zoomed.as_ref(),
 6607                                                                &PaneRenderContext {
 6608                                                                    follower_states:
 6609                                                                        &self.follower_states,
 6610                                                                    active_call: self.active_call(),
 6611                                                                    active_pane: &self.active_pane,
 6612                                                                    app_state: &self.app_state,
 6613                                                                    project: &self.project,
 6614                                                                    workspace: &self.weak_self,
 6615                                                                },
 6616                                                                window,
 6617                                                                cx,
 6618                                                            ))
 6619                                                            .when_some(paddings.1, |this, p| {
 6620                                                                this.child(p.border_l_1())
 6621                                                            }),
 6622                                                    )
 6623                                                    .children(self.render_dock(
 6624                                                        DockPosition::Bottom,
 6625                                                        &self.bottom_dock,
 6626                                                        window,
 6627                                                        cx,
 6628                                                    )),
 6629                                            )
 6630                                            .children(self.render_dock(
 6631                                                DockPosition::Right,
 6632                                                &self.right_dock,
 6633                                                window,
 6634                                                cx,
 6635                                            )),
 6636                                    }
 6637                                })
 6638                                .children(self.zoomed.as_ref().and_then(|view| {
 6639                                    Some(div()
 6640                                        .occlude()
 6641                                        .absolute()
 6642                                        .overflow_hidden()
 6643                                        .border_color(colors.border)
 6644                                        .bg(colors.background)
 6645                                        .child(view.upgrade()?)
 6646                                        .inset_0()
 6647                                        .shadow_lg())
 6648                                }))
 6649                                .children(self.render_notifications(window, cx)),
 6650                        )
 6651                        .child(self.status_bar.clone())
 6652                        .child(self.modal_layer.clone())
 6653                        .child(self.toast_layer.clone()),
 6654                ),
 6655            window,
 6656            cx,
 6657        )
 6658    }
 6659}
 6660
 6661impl WorkspaceStore {
 6662    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6663        Self {
 6664            workspaces: Default::default(),
 6665            _subscriptions: vec![
 6666                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6667                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6668            ],
 6669            client,
 6670        }
 6671    }
 6672
 6673    pub fn update_followers(
 6674        &self,
 6675        project_id: Option<u64>,
 6676        update: proto::update_followers::Variant,
 6677        cx: &App,
 6678    ) -> Option<()> {
 6679        let active_call = ActiveCall::try_global(cx)?;
 6680        let room_id = active_call.read(cx).room()?.read(cx).id();
 6681        self.client
 6682            .send(proto::UpdateFollowers {
 6683                room_id,
 6684                project_id,
 6685                variant: Some(update),
 6686            })
 6687            .log_err()
 6688    }
 6689
 6690    pub async fn handle_follow(
 6691        this: Entity<Self>,
 6692        envelope: TypedEnvelope<proto::Follow>,
 6693        mut cx: AsyncApp,
 6694    ) -> Result<proto::FollowResponse> {
 6695        this.update(&mut cx, |this, cx| {
 6696            let follower = Follower {
 6697                project_id: envelope.payload.project_id,
 6698                peer_id: envelope.original_sender_id()?,
 6699            };
 6700
 6701            let mut response = proto::FollowResponse::default();
 6702            this.workspaces.retain(|workspace| {
 6703                workspace
 6704                    .update(cx, |workspace, window, cx| {
 6705                        let handler_response =
 6706                            workspace.handle_follow(follower.project_id, window, cx);
 6707                        if let Some(active_view) = handler_response.active_view.clone()
 6708                            && workspace.project.read(cx).remote_id() == follower.project_id {
 6709                                response.active_view = Some(active_view)
 6710                            }
 6711                    })
 6712                    .is_ok()
 6713            });
 6714
 6715            Ok(response)
 6716        })?
 6717    }
 6718
 6719    async fn handle_update_followers(
 6720        this: Entity<Self>,
 6721        envelope: TypedEnvelope<proto::UpdateFollowers>,
 6722        mut cx: AsyncApp,
 6723    ) -> Result<()> {
 6724        let leader_id = envelope.original_sender_id()?;
 6725        let update = envelope.payload;
 6726
 6727        this.update(&mut cx, |this, cx| {
 6728            this.workspaces.retain(|workspace| {
 6729                workspace
 6730                    .update(cx, |workspace, window, cx| {
 6731                        let project_id = workspace.project.read(cx).remote_id();
 6732                        if update.project_id != project_id && update.project_id.is_some() {
 6733                            return;
 6734                        }
 6735                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 6736                    })
 6737                    .is_ok()
 6738            });
 6739            Ok(())
 6740        })?
 6741    }
 6742
 6743    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 6744        &self.workspaces
 6745    }
 6746}
 6747
 6748impl ViewId {
 6749    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 6750        Ok(Self {
 6751            creator: message
 6752                .creator
 6753                .map(CollaboratorId::PeerId)
 6754                .context("creator is missing")?,
 6755            id: message.id,
 6756        })
 6757    }
 6758
 6759    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 6760        if let CollaboratorId::PeerId(peer_id) = self.creator {
 6761            Some(proto::ViewId {
 6762                creator: Some(peer_id),
 6763                id: self.id,
 6764            })
 6765        } else {
 6766            None
 6767        }
 6768    }
 6769}
 6770
 6771impl FollowerState {
 6772    fn pane(&self) -> &Entity<Pane> {
 6773        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 6774    }
 6775}
 6776
 6777pub trait WorkspaceHandle {
 6778    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 6779}
 6780
 6781impl WorkspaceHandle for Entity<Workspace> {
 6782    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 6783        self.read(cx)
 6784            .worktrees(cx)
 6785            .flat_map(|worktree| {
 6786                let worktree_id = worktree.read(cx).id();
 6787                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 6788                    worktree_id,
 6789                    path: f.path.clone(),
 6790                })
 6791            })
 6792            .collect::<Vec<_>>()
 6793    }
 6794}
 6795
 6796pub async fn last_opened_workspace_location() -> Option<SerializedWorkspaceLocation> {
 6797    DB.last_workspace().await.log_err().flatten()
 6798}
 6799
 6800pub fn last_session_workspace_locations(
 6801    last_session_id: &str,
 6802    last_session_window_stack: Option<Vec<WindowId>>,
 6803) -> Option<Vec<SerializedWorkspaceLocation>> {
 6804    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 6805        .log_err()
 6806}
 6807
 6808actions!(
 6809    collab,
 6810    [
 6811        /// Opens the channel notes for the current call.
 6812        ///
 6813        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 6814        /// can be copied via "Copy link to section" in the context menu of the channel notes
 6815        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 6816        OpenChannelNotes,
 6817        /// Mutes your microphone.
 6818        Mute,
 6819        /// Deafens yourself (mute both microphone and speakers).
 6820        Deafen,
 6821        /// Leaves the current call.
 6822        LeaveCall,
 6823        /// Shares the current project with collaborators.
 6824        ShareProject,
 6825        /// Shares your screen with collaborators.
 6826        ScreenShare
 6827    ]
 6828);
 6829actions!(
 6830    zed,
 6831    [
 6832        /// Opens the Zed log file.
 6833        OpenLog
 6834    ]
 6835);
 6836
 6837async fn join_channel_internal(
 6838    channel_id: ChannelId,
 6839    app_state: &Arc<AppState>,
 6840    requesting_window: Option<WindowHandle<Workspace>>,
 6841    active_call: &Entity<ActiveCall>,
 6842    cx: &mut AsyncApp,
 6843) -> Result<bool> {
 6844    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 6845        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 6846            return (false, None);
 6847        };
 6848
 6849        let already_in_channel = room.channel_id() == Some(channel_id);
 6850        let should_prompt = room.is_sharing_project()
 6851            && !room.remote_participants().is_empty()
 6852            && !already_in_channel;
 6853        let open_room = if already_in_channel {
 6854            active_call.room().cloned()
 6855        } else {
 6856            None
 6857        };
 6858        (should_prompt, open_room)
 6859    })?;
 6860
 6861    if let Some(room) = open_room {
 6862        let task = room.update(cx, |room, cx| {
 6863            if let Some((project, host)) = room.most_active_project(cx) {
 6864                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6865            }
 6866
 6867            None
 6868        })?;
 6869        if let Some(task) = task {
 6870            task.await?;
 6871        }
 6872        return anyhow::Ok(true);
 6873    }
 6874
 6875    if should_prompt {
 6876        if let Some(workspace) = requesting_window {
 6877            let answer = workspace
 6878                .update(cx, |_, window, cx| {
 6879                    window.prompt(
 6880                        PromptLevel::Warning,
 6881                        "Do you want to switch channels?",
 6882                        Some("Leaving this call will unshare your current project."),
 6883                        &["Yes, Join Channel", "Cancel"],
 6884                        cx,
 6885                    )
 6886                })?
 6887                .await;
 6888
 6889            if answer == Ok(1) {
 6890                return Ok(false);
 6891            }
 6892        } else {
 6893            return Ok(false); // unreachable!() hopefully
 6894        }
 6895    }
 6896
 6897    let client = cx.update(|cx| active_call.read(cx).client())?;
 6898
 6899    let mut client_status = client.status();
 6900
 6901    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 6902    'outer: loop {
 6903        let Some(status) = client_status.recv().await else {
 6904            anyhow::bail!("error connecting");
 6905        };
 6906
 6907        match status {
 6908            Status::Connecting
 6909            | Status::Authenticating
 6910            | Status::Authenticated
 6911            | Status::Reconnecting
 6912            | Status::Reauthenticating => continue,
 6913            Status::Connected { .. } => break 'outer,
 6914            Status::SignedOut | Status::AuthenticationError => {
 6915                return Err(ErrorCode::SignedOut.into());
 6916            }
 6917            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 6918            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 6919                return Err(ErrorCode::Disconnected.into());
 6920            }
 6921        }
 6922    }
 6923
 6924    let room = active_call
 6925        .update(cx, |active_call, cx| {
 6926            active_call.join_channel(channel_id, cx)
 6927        })?
 6928        .await?;
 6929
 6930    let Some(room) = room else {
 6931        return anyhow::Ok(true);
 6932    };
 6933
 6934    room.update(cx, |room, _| room.room_update_completed())?
 6935        .await;
 6936
 6937    let task = room.update(cx, |room, cx| {
 6938        if let Some((project, host)) = room.most_active_project(cx) {
 6939            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6940        }
 6941
 6942        // If you are the first to join a channel, see if you should share your project.
 6943        if room.remote_participants().is_empty() && !room.local_participant_is_guest()
 6944            && let Some(workspace) = requesting_window {
 6945                let project = workspace.update(cx, |workspace, _, cx| {
 6946                    let project = workspace.project.read(cx);
 6947
 6948                    if !CallSettings::get_global(cx).share_on_join {
 6949                        return None;
 6950                    }
 6951
 6952                    if (project.is_local() || project.is_via_ssh())
 6953                        && project.visible_worktrees(cx).any(|tree| {
 6954                            tree.read(cx)
 6955                                .root_entry()
 6956                                .map_or(false, |entry| entry.is_dir())
 6957                        })
 6958                    {
 6959                        Some(workspace.project.clone())
 6960                    } else {
 6961                        None
 6962                    }
 6963                });
 6964                if let Ok(Some(project)) = project {
 6965                    return Some(cx.spawn(async move |room, cx| {
 6966                        room.update(cx, |room, cx| room.share_project(project, cx))?
 6967                            .await?;
 6968                        Ok(())
 6969                    }));
 6970                }
 6971            }
 6972
 6973        None
 6974    })?;
 6975    if let Some(task) = task {
 6976        task.await?;
 6977        return anyhow::Ok(true);
 6978    }
 6979    anyhow::Ok(false)
 6980}
 6981
 6982pub fn join_channel(
 6983    channel_id: ChannelId,
 6984    app_state: Arc<AppState>,
 6985    requesting_window: Option<WindowHandle<Workspace>>,
 6986    cx: &mut App,
 6987) -> Task<Result<()>> {
 6988    let active_call = ActiveCall::global(cx);
 6989    cx.spawn(async move |cx| {
 6990        let result = join_channel_internal(
 6991            channel_id,
 6992            &app_state,
 6993            requesting_window,
 6994            &active_call,
 6995             cx,
 6996        )
 6997            .await;
 6998
 6999        // join channel succeeded, and opened a window
 7000        if matches!(result, Ok(true)) {
 7001            return anyhow::Ok(());
 7002        }
 7003
 7004        // find an existing workspace to focus and show call controls
 7005        let mut active_window =
 7006            requesting_window.or_else(|| activate_any_workspace_window( cx));
 7007        if active_window.is_none() {
 7008            // no open workspaces, make one to show the error in (blergh)
 7009            let (window_handle, _) = cx
 7010                .update(|cx| {
 7011                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7012                })?
 7013                .await?;
 7014
 7015            if result.is_ok() {
 7016                cx.update(|cx| {
 7017                    cx.dispatch_action(&OpenChannelNotes);
 7018                }).log_err();
 7019            }
 7020
 7021            active_window = Some(window_handle);
 7022        }
 7023
 7024        if let Err(err) = result {
 7025            log::error!("failed to join channel: {}", err);
 7026            if let Some(active_window) = active_window {
 7027                active_window
 7028                    .update(cx, |_, window, cx| {
 7029                        let detail: SharedString = match err.error_code() {
 7030                            ErrorCode::SignedOut => {
 7031                                "Please sign in to continue.".into()
 7032                            }
 7033                            ErrorCode::UpgradeRequired => {
 7034                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7035                            }
 7036                            ErrorCode::NoSuchChannel => {
 7037                                "No matching channel was found. Please check the link and try again.".into()
 7038                            }
 7039                            ErrorCode::Forbidden => {
 7040                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7041                            }
 7042                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7043                            _ => format!("{}\n\nPlease try again.", err).into(),
 7044                        };
 7045                        window.prompt(
 7046                            PromptLevel::Critical,
 7047                            "Failed to join channel",
 7048                            Some(&detail),
 7049                            &["Ok"],
 7050                        cx)
 7051                    })?
 7052                    .await
 7053                    .ok();
 7054            }
 7055        }
 7056
 7057        // return ok, we showed the error to the user.
 7058        anyhow::Ok(())
 7059    })
 7060}
 7061
 7062pub async fn get_any_active_workspace(
 7063    app_state: Arc<AppState>,
 7064    mut cx: AsyncApp,
 7065) -> anyhow::Result<WindowHandle<Workspace>> {
 7066    // find an existing workspace to focus and show call controls
 7067    let active_window = activate_any_workspace_window(&mut cx);
 7068    if active_window.is_none() {
 7069        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7070            .await?;
 7071    }
 7072    activate_any_workspace_window(&mut cx).context("could not open zed")
 7073}
 7074
 7075fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7076    cx.update(|cx| {
 7077        if let Some(workspace_window) = cx
 7078            .active_window()
 7079            .and_then(|window| window.downcast::<Workspace>())
 7080        {
 7081            return Some(workspace_window);
 7082        }
 7083
 7084        for window in cx.windows() {
 7085            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7086                workspace_window
 7087                    .update(cx, |_, window, _| window.activate_window())
 7088                    .ok();
 7089                return Some(workspace_window);
 7090            }
 7091        }
 7092        None
 7093    })
 7094    .ok()
 7095    .flatten()
 7096}
 7097
 7098pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7099    cx.windows()
 7100        .into_iter()
 7101        .filter_map(|window| window.downcast::<Workspace>())
 7102        .filter(|workspace| {
 7103            workspace
 7104                .read(cx)
 7105                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7106        })
 7107        .collect()
 7108}
 7109
 7110#[derive(Default)]
 7111pub struct OpenOptions {
 7112    pub visible: Option<OpenVisible>,
 7113    pub focus: Option<bool>,
 7114    pub open_new_workspace: Option<bool>,
 7115    pub replace_window: Option<WindowHandle<Workspace>>,
 7116    pub env: Option<HashMap<String, String>>,
 7117}
 7118
 7119#[allow(clippy::type_complexity)]
 7120pub fn open_paths(
 7121    abs_paths: &[PathBuf],
 7122    app_state: Arc<AppState>,
 7123    open_options: OpenOptions,
 7124    cx: &mut App,
 7125) -> Task<
 7126    anyhow::Result<(
 7127        WindowHandle<Workspace>,
 7128        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7129    )>,
 7130> {
 7131    let abs_paths = abs_paths.to_vec();
 7132    let mut existing = None;
 7133    let mut best_match = None;
 7134    let mut open_visible = OpenVisible::All;
 7135
 7136    cx.spawn(async move |cx| {
 7137        if open_options.open_new_workspace != Some(true) {
 7138            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7139            let all_metadatas = futures::future::join_all(all_paths)
 7140                .await
 7141                .into_iter()
 7142                .filter_map(|result| result.ok().flatten())
 7143                .collect::<Vec<_>>();
 7144
 7145            cx.update(|cx| {
 7146                for window in local_workspace_windows(cx) {
 7147                    if let Ok(workspace) = window.read(cx) {
 7148                        let m = workspace.project.read(cx).visibility_for_paths(
 7149                            &abs_paths,
 7150                            &all_metadatas,
 7151                            open_options.open_new_workspace == None,
 7152                            cx,
 7153                        );
 7154                        if m > best_match {
 7155                            existing = Some(window);
 7156                            best_match = m;
 7157                        } else if best_match.is_none()
 7158                            && open_options.open_new_workspace == Some(false)
 7159                        {
 7160                            existing = Some(window)
 7161                        }
 7162                    }
 7163                }
 7164            })?;
 7165
 7166            if open_options.open_new_workspace.is_none() && existing.is_none()
 7167                && all_metadatas.iter().all(|file| !file.is_dir) {
 7168                    cx.update(|cx| {
 7169                        if let Some(window) = cx
 7170                            .active_window()
 7171                            .and_then(|window| window.downcast::<Workspace>())
 7172                            && let Ok(workspace) = window.read(cx) {
 7173                                let project = workspace.project().read(cx);
 7174                                if project.is_local() && !project.is_via_collab() {
 7175                                    existing = Some(window);
 7176                                    open_visible = OpenVisible::None;
 7177                                    return;
 7178                                }
 7179                            }
 7180                        for window in local_workspace_windows(cx) {
 7181                            if let Ok(workspace) = window.read(cx) {
 7182                                let project = workspace.project().read(cx);
 7183                                if project.is_via_collab() {
 7184                                    continue;
 7185                                }
 7186                                existing = Some(window);
 7187                                open_visible = OpenVisible::None;
 7188                                break;
 7189                            }
 7190                        }
 7191                    })?;
 7192                }
 7193        }
 7194
 7195        if let Some(existing) = existing {
 7196            let open_task = existing
 7197                .update(cx, |workspace, window, cx| {
 7198                    window.activate_window();
 7199                    workspace.open_paths(
 7200                        abs_paths,
 7201                        OpenOptions {
 7202                            visible: Some(open_visible),
 7203                            ..Default::default()
 7204                        },
 7205                        None,
 7206                        window,
 7207                        cx,
 7208                    )
 7209                })?
 7210                .await;
 7211
 7212            _ = existing.update(cx, |workspace, _, cx| {
 7213                for item in open_task.iter().flatten() {
 7214                    if let Err(e) = item {
 7215                        workspace.show_error(&e, cx);
 7216                    }
 7217                }
 7218            });
 7219
 7220            Ok((existing, open_task))
 7221        } else {
 7222            cx.update(move |cx| {
 7223                Workspace::new_local(
 7224                    abs_paths,
 7225                    app_state.clone(),
 7226                    open_options.replace_window,
 7227                    open_options.env,
 7228                    cx,
 7229                )
 7230            })?
 7231            .await
 7232        }
 7233    })
 7234}
 7235
 7236pub fn open_new(
 7237    open_options: OpenOptions,
 7238    app_state: Arc<AppState>,
 7239    cx: &mut App,
 7240    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7241) -> Task<anyhow::Result<()>> {
 7242    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7243    cx.spawn(async move |cx| {
 7244        let (workspace, opened_paths) = task.await?;
 7245        workspace.update(cx, |workspace, window, cx| {
 7246            if opened_paths.is_empty() {
 7247                init(workspace, window, cx)
 7248            }
 7249        })?;
 7250        Ok(())
 7251    })
 7252}
 7253
 7254pub fn create_and_open_local_file(
 7255    path: &'static Path,
 7256    window: &mut Window,
 7257    cx: &mut Context<Workspace>,
 7258    default_content: impl 'static + Send + FnOnce() -> Rope,
 7259) -> Task<Result<Box<dyn ItemHandle>>> {
 7260    cx.spawn_in(window, async move |workspace, cx| {
 7261        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7262        if !fs.is_file(path).await {
 7263            fs.create_file(path, Default::default()).await?;
 7264            fs.save(path, &default_content(), Default::default())
 7265                .await?;
 7266        }
 7267
 7268        let mut items = workspace
 7269            .update_in(cx, |workspace, window, cx| {
 7270                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7271                    workspace.open_paths(
 7272                        vec![path.to_path_buf()],
 7273                        OpenOptions {
 7274                            visible: Some(OpenVisible::None),
 7275                            ..Default::default()
 7276                        },
 7277                        None,
 7278                        window,
 7279                        cx,
 7280                    )
 7281                })
 7282            })?
 7283            .await?
 7284            .await;
 7285
 7286        let item = items.pop().flatten();
 7287        item.with_context(|| format!("path {path:?} is not a file"))?
 7288    })
 7289}
 7290
 7291pub fn open_ssh_project_with_new_connection(
 7292    window: WindowHandle<Workspace>,
 7293    connection_options: SshConnectionOptions,
 7294    cancel_rx: oneshot::Receiver<()>,
 7295    delegate: Arc<dyn SshClientDelegate>,
 7296    app_state: Arc<AppState>,
 7297    paths: Vec<PathBuf>,
 7298    cx: &mut App,
 7299) -> Task<Result<()>> {
 7300    cx.spawn(async move |cx| {
 7301        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7302            serialize_ssh_project(connection_options.clone(), paths.clone(), cx).await?;
 7303
 7304        let session = match cx
 7305            .update(|cx| {
 7306                remote::SshRemoteClient::new(
 7307                    ConnectionIdentifier::Workspace(workspace_id.0),
 7308                    connection_options,
 7309                    cancel_rx,
 7310                    delegate,
 7311                    cx,
 7312                )
 7313            })?
 7314            .await?
 7315        {
 7316            Some(result) => result,
 7317            None => return Ok(()),
 7318        };
 7319
 7320        let project = cx.update(|cx| {
 7321            project::Project::ssh(
 7322                session,
 7323                app_state.client.clone(),
 7324                app_state.node_runtime.clone(),
 7325                app_state.user_store.clone(),
 7326                app_state.languages.clone(),
 7327                app_state.fs.clone(),
 7328                cx,
 7329            )
 7330        })?;
 7331
 7332        open_ssh_project_inner(
 7333            project,
 7334            paths,
 7335            serialized_ssh_project,
 7336            workspace_id,
 7337            serialized_workspace,
 7338            app_state,
 7339            window,
 7340            cx,
 7341        )
 7342        .await
 7343    })
 7344}
 7345
 7346pub fn open_ssh_project_with_existing_connection(
 7347    connection_options: SshConnectionOptions,
 7348    project: Entity<Project>,
 7349    paths: Vec<PathBuf>,
 7350    app_state: Arc<AppState>,
 7351    window: WindowHandle<Workspace>,
 7352    cx: &mut AsyncApp,
 7353) -> Task<Result<()>> {
 7354    cx.spawn(async move |cx| {
 7355        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7356            serialize_ssh_project(connection_options.clone(), paths.clone(), cx).await?;
 7357
 7358        open_ssh_project_inner(
 7359            project,
 7360            paths,
 7361            serialized_ssh_project,
 7362            workspace_id,
 7363            serialized_workspace,
 7364            app_state,
 7365            window,
 7366            cx,
 7367        )
 7368        .await
 7369    })
 7370}
 7371
 7372async fn open_ssh_project_inner(
 7373    project: Entity<Project>,
 7374    paths: Vec<PathBuf>,
 7375    serialized_ssh_project: SerializedSshProject,
 7376    workspace_id: WorkspaceId,
 7377    serialized_workspace: Option<SerializedWorkspace>,
 7378    app_state: Arc<AppState>,
 7379    window: WindowHandle<Workspace>,
 7380    cx: &mut AsyncApp,
 7381) -> Result<()> {
 7382    let toolchains = DB.toolchains(workspace_id).await?;
 7383    for (toolchain, worktree_id, path) in toolchains {
 7384        project
 7385            .update(cx, |this, cx| {
 7386                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7387            })?
 7388            .await;
 7389    }
 7390    let mut project_paths_to_open = vec![];
 7391    let mut project_path_errors = vec![];
 7392
 7393    for path in paths {
 7394        let result = cx
 7395            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7396            .await;
 7397        match result {
 7398            Ok((_, project_path)) => {
 7399                project_paths_to_open.push((path.clone(), Some(project_path)));
 7400            }
 7401            Err(error) => {
 7402                project_path_errors.push(error);
 7403            }
 7404        };
 7405    }
 7406
 7407    if project_paths_to_open.is_empty() {
 7408        return Err(project_path_errors.pop().context("no paths given")?);
 7409    }
 7410
 7411    if let Some(detach_session_task) = window
 7412        .update(cx, |_workspace, window, cx| {
 7413            cx.spawn_in(window, async move |this, cx| {
 7414                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7415            })
 7416        })
 7417        .ok()
 7418    {
 7419        detach_session_task.await.ok();
 7420    }
 7421
 7422    cx.update_window(window.into(), |_, window, cx| {
 7423        window.replace_root(cx, |window, cx| {
 7424            telemetry::event!("SSH Project Opened");
 7425
 7426            let mut workspace =
 7427                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7428            workspace.set_serialized_ssh_project(serialized_ssh_project);
 7429            workspace.update_history(cx);
 7430
 7431            if let Some(ref serialized) = serialized_workspace {
 7432                workspace.centered_layout = serialized.centered_layout;
 7433            }
 7434
 7435            workspace
 7436        });
 7437    })?;
 7438
 7439    window
 7440        .update(cx, |_, window, cx| {
 7441            window.activate_window();
 7442            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7443        })?
 7444        .await?;
 7445
 7446    window.update(cx, |workspace, _, cx| {
 7447        for error in project_path_errors {
 7448            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7449                if let Some(path) = error.error_tag("path") {
 7450                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7451                }
 7452            } else {
 7453                workspace.show_error(&error, cx)
 7454            }
 7455        }
 7456    })?;
 7457
 7458    Ok(())
 7459}
 7460
 7461fn serialize_ssh_project(
 7462    connection_options: SshConnectionOptions,
 7463    paths: Vec<PathBuf>,
 7464    cx: &AsyncApp,
 7465) -> Task<
 7466    Result<(
 7467        SerializedSshProject,
 7468        WorkspaceId,
 7469        Option<SerializedWorkspace>,
 7470    )>,
 7471> {
 7472    cx.background_spawn(async move {
 7473        let serialized_ssh_project = persistence::DB
 7474            .get_or_create_ssh_project(
 7475                connection_options.host.clone(),
 7476                connection_options.port,
 7477                paths
 7478                    .iter()
 7479                    .map(|path| path.to_string_lossy().to_string())
 7480                    .collect::<Vec<_>>(),
 7481                connection_options.username.clone(),
 7482            )
 7483            .await?;
 7484
 7485        let serialized_workspace =
 7486            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 7487
 7488        let workspace_id = if let Some(workspace_id) =
 7489            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7490        {
 7491            workspace_id
 7492        } else {
 7493            persistence::DB.next_id().await?
 7494        };
 7495
 7496        Ok((serialized_ssh_project, workspace_id, serialized_workspace))
 7497    })
 7498}
 7499
 7500pub fn join_in_room_project(
 7501    project_id: u64,
 7502    follow_user_id: u64,
 7503    app_state: Arc<AppState>,
 7504    cx: &mut App,
 7505) -> Task<Result<()>> {
 7506    let windows = cx.windows();
 7507    cx.spawn(async move |cx| {
 7508        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7509            window_handle
 7510                .downcast::<Workspace>()
 7511                .and_then(|window_handle| {
 7512                    window_handle
 7513                        .update(cx, |workspace, _window, cx| {
 7514                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7515                                Some(window_handle)
 7516                            } else {
 7517                                None
 7518                            }
 7519                        })
 7520                        .unwrap_or(None)
 7521                })
 7522        });
 7523
 7524        let workspace = if let Some(existing_workspace) = existing_workspace {
 7525            existing_workspace
 7526        } else {
 7527            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7528            let room = active_call
 7529                .read_with(cx, |call, _| call.room().cloned())?
 7530                .context("not in a call")?;
 7531            let project = room
 7532                .update(cx, |room, cx| {
 7533                    room.join_project(
 7534                        project_id,
 7535                        app_state.languages.clone(),
 7536                        app_state.fs.clone(),
 7537                        cx,
 7538                    )
 7539                })?
 7540                .await?;
 7541
 7542            let window_bounds_override = window_bounds_env_override();
 7543            cx.update(|cx| {
 7544                let mut options = (app_state.build_window_options)(None, cx);
 7545                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7546                cx.open_window(options, |window, cx| {
 7547                    cx.new(|cx| {
 7548                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7549                    })
 7550                })
 7551            })??
 7552        };
 7553
 7554        workspace.update(cx, |workspace, window, cx| {
 7555            cx.activate(true);
 7556            window.activate_window();
 7557
 7558            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7559                let follow_peer_id = room
 7560                    .read(cx)
 7561                    .remote_participants()
 7562                    .iter()
 7563                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7564                    .map(|(_, p)| p.peer_id)
 7565                    .or_else(|| {
 7566                        // If we couldn't follow the given user, follow the host instead.
 7567                        let collaborator = workspace
 7568                            .project()
 7569                            .read(cx)
 7570                            .collaborators()
 7571                            .values()
 7572                            .find(|collaborator| collaborator.is_host)?;
 7573                        Some(collaborator.peer_id)
 7574                    });
 7575
 7576                if let Some(follow_peer_id) = follow_peer_id {
 7577                    workspace.follow(follow_peer_id, window, cx);
 7578                }
 7579            }
 7580        })?;
 7581
 7582        anyhow::Ok(())
 7583    })
 7584}
 7585
 7586pub fn reload(cx: &mut App) {
 7587    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7588    let mut workspace_windows = cx
 7589        .windows()
 7590        .into_iter()
 7591        .filter_map(|window| window.downcast::<Workspace>())
 7592        .collect::<Vec<_>>();
 7593
 7594    // If multiple windows have unsaved changes, and need a save prompt,
 7595    // prompt in the active window before switching to a different window.
 7596    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7597
 7598    let mut prompt = None;
 7599    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7600        prompt = window
 7601            .update(cx, |_, window, cx| {
 7602                window.prompt(
 7603                    PromptLevel::Info,
 7604                    "Are you sure you want to restart?",
 7605                    None,
 7606                    &["Restart", "Cancel"],
 7607                    cx,
 7608                )
 7609            })
 7610            .ok();
 7611    }
 7612
 7613    cx.spawn(async move |cx| {
 7614        if let Some(prompt) = prompt {
 7615            let answer = prompt.await?;
 7616            if answer != 0 {
 7617                return Ok(());
 7618            }
 7619        }
 7620
 7621        // If the user cancels any save prompt, then keep the app open.
 7622        for window in workspace_windows {
 7623            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7624                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7625            })
 7626                && !should_close.await? {
 7627                    return Ok(());
 7628                }
 7629        }
 7630        cx.update(|cx| cx.restart())
 7631    })
 7632    .detach_and_log_err(cx);
 7633}
 7634
 7635fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7636    let mut parts = value.split(',');
 7637    let x: usize = parts.next()?.parse().ok()?;
 7638    let y: usize = parts.next()?.parse().ok()?;
 7639    Some(point(px(x as f32), px(y as f32)))
 7640}
 7641
 7642fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7643    let mut parts = value.split(',');
 7644    let width: usize = parts.next()?.parse().ok()?;
 7645    let height: usize = parts.next()?.parse().ok()?;
 7646    Some(size(px(width as f32), px(height as f32)))
 7647}
 7648
 7649/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7650pub fn client_side_decorations(
 7651    element: impl IntoElement,
 7652    window: &mut Window,
 7653    cx: &mut App,
 7654) -> Stateful<Div> {
 7655    const BORDER_SIZE: Pixels = px(1.0);
 7656    let decorations = window.window_decorations();
 7657
 7658    match decorations {
 7659        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7660        Decorations::Server { .. } => window.set_client_inset(px(0.0)),
 7661    }
 7662
 7663    struct GlobalResizeEdge(ResizeEdge);
 7664    impl Global for GlobalResizeEdge {}
 7665
 7666    div()
 7667        .id("window-backdrop")
 7668        .bg(transparent_black())
 7669        .map(|div| match decorations {
 7670            Decorations::Server => div,
 7671            Decorations::Client { tiling, .. } => div
 7672                .when(!(tiling.top || tiling.right), |div| {
 7673                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7674                })
 7675                .when(!(tiling.top || tiling.left), |div| {
 7676                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7677                })
 7678                .when(!(tiling.bottom || tiling.right), |div| {
 7679                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7680                })
 7681                .when(!(tiling.bottom || tiling.left), |div| {
 7682                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7683                })
 7684                .when(!tiling.top, |div| {
 7685                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7686                })
 7687                .when(!tiling.bottom, |div| {
 7688                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7689                })
 7690                .when(!tiling.left, |div| {
 7691                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7692                })
 7693                .when(!tiling.right, |div| {
 7694                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7695                })
 7696                .on_mouse_move(move |e, window, cx| {
 7697                    let size = window.window_bounds().get_bounds().size;
 7698                    let pos = e.position;
 7699
 7700                    let new_edge =
 7701                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 7702
 7703                    let edge = cx.try_global::<GlobalResizeEdge>();
 7704                    if new_edge != edge.map(|edge| edge.0) {
 7705                        window
 7706                            .window_handle()
 7707                            .update(cx, |workspace, _, cx| {
 7708                                cx.notify(workspace.entity_id());
 7709                            })
 7710                            .ok();
 7711                    }
 7712                })
 7713                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 7714                    let size = window.window_bounds().get_bounds().size;
 7715                    let pos = e.position;
 7716
 7717                    let edge = match resize_edge(
 7718                        pos,
 7719                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 7720                        size,
 7721                        tiling,
 7722                    ) {
 7723                        Some(value) => value,
 7724                        None => return,
 7725                    };
 7726
 7727                    window.start_window_resize(edge);
 7728                }),
 7729        })
 7730        .size_full()
 7731        .child(
 7732            div()
 7733                .cursor(CursorStyle::Arrow)
 7734                .map(|div| match decorations {
 7735                    Decorations::Server => div,
 7736                    Decorations::Client { tiling } => div
 7737                        .border_color(cx.theme().colors().border)
 7738                        .when(!(tiling.top || tiling.right), |div| {
 7739                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7740                        })
 7741                        .when(!(tiling.top || tiling.left), |div| {
 7742                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7743                        })
 7744                        .when(!(tiling.bottom || tiling.right), |div| {
 7745                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7746                        })
 7747                        .when(!(tiling.bottom || tiling.left), |div| {
 7748                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7749                        })
 7750                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 7751                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 7752                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 7753                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 7754                        .when(!tiling.is_tiled(), |div| {
 7755                            div.shadow(vec![gpui::BoxShadow {
 7756                                color: Hsla {
 7757                                    h: 0.,
 7758                                    s: 0.,
 7759                                    l: 0.,
 7760                                    a: 0.4,
 7761                                },
 7762                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 7763                                spread_radius: px(0.),
 7764                                offset: point(px(0.0), px(0.0)),
 7765                            }])
 7766                        }),
 7767                })
 7768                .on_mouse_move(|_e, _, cx| {
 7769                    cx.stop_propagation();
 7770                })
 7771                .size_full()
 7772                .child(element),
 7773        )
 7774        .map(|div| match decorations {
 7775            Decorations::Server => div,
 7776            Decorations::Client { tiling, .. } => div.child(
 7777                canvas(
 7778                    |_bounds, window, _| {
 7779                        window.insert_hitbox(
 7780                            Bounds::new(
 7781                                point(px(0.0), px(0.0)),
 7782                                window.window_bounds().get_bounds().size,
 7783                            ),
 7784                            HitboxBehavior::Normal,
 7785                        )
 7786                    },
 7787                    move |_bounds, hitbox, window, cx| {
 7788                        let mouse = window.mouse_position();
 7789                        let size = window.window_bounds().get_bounds().size;
 7790                        let Some(edge) =
 7791                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 7792                        else {
 7793                            return;
 7794                        };
 7795                        cx.set_global(GlobalResizeEdge(edge));
 7796                        window.set_cursor_style(
 7797                            match edge {
 7798                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 7799                                ResizeEdge::Left | ResizeEdge::Right => {
 7800                                    CursorStyle::ResizeLeftRight
 7801                                }
 7802                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 7803                                    CursorStyle::ResizeUpLeftDownRight
 7804                                }
 7805                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 7806                                    CursorStyle::ResizeUpRightDownLeft
 7807                                }
 7808                            },
 7809                            &hitbox,
 7810                        );
 7811                    },
 7812                )
 7813                .size_full()
 7814                .absolute(),
 7815            ),
 7816        })
 7817}
 7818
 7819fn resize_edge(
 7820    pos: Point<Pixels>,
 7821    shadow_size: Pixels,
 7822    window_size: Size<Pixels>,
 7823    tiling: Tiling,
 7824) -> Option<ResizeEdge> {
 7825    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 7826    if bounds.contains(&pos) {
 7827        return None;
 7828    }
 7829
 7830    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 7831    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 7832    if !tiling.top && top_left_bounds.contains(&pos) {
 7833        return Some(ResizeEdge::TopLeft);
 7834    }
 7835
 7836    let top_right_bounds = Bounds::new(
 7837        Point::new(window_size.width - corner_size.width, px(0.)),
 7838        corner_size,
 7839    );
 7840    if !tiling.top && top_right_bounds.contains(&pos) {
 7841        return Some(ResizeEdge::TopRight);
 7842    }
 7843
 7844    let bottom_left_bounds = Bounds::new(
 7845        Point::new(px(0.), window_size.height - corner_size.height),
 7846        corner_size,
 7847    );
 7848    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 7849        return Some(ResizeEdge::BottomLeft);
 7850    }
 7851
 7852    let bottom_right_bounds = Bounds::new(
 7853        Point::new(
 7854            window_size.width - corner_size.width,
 7855            window_size.height - corner_size.height,
 7856        ),
 7857        corner_size,
 7858    );
 7859    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 7860        return Some(ResizeEdge::BottomRight);
 7861    }
 7862
 7863    if !tiling.top && pos.y < shadow_size {
 7864        Some(ResizeEdge::Top)
 7865    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 7866        Some(ResizeEdge::Bottom)
 7867    } else if !tiling.left && pos.x < shadow_size {
 7868        Some(ResizeEdge::Left)
 7869    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 7870        Some(ResizeEdge::Right)
 7871    } else {
 7872        None
 7873    }
 7874}
 7875
 7876fn join_pane_into_active(
 7877    active_pane: &Entity<Pane>,
 7878    pane: &Entity<Pane>,
 7879    window: &mut Window,
 7880    cx: &mut App,
 7881) {
 7882    if pane == active_pane {
 7883        return;
 7884    } else if pane.read(cx).items_len() == 0 {
 7885        pane.update(cx, |_, cx| {
 7886            cx.emit(pane::Event::Remove {
 7887                focus_on_pane: None,
 7888            });
 7889        })
 7890    } else {
 7891        move_all_items(pane, active_pane, window, cx);
 7892    }
 7893}
 7894
 7895fn move_all_items(
 7896    from_pane: &Entity<Pane>,
 7897    to_pane: &Entity<Pane>,
 7898    window: &mut Window,
 7899    cx: &mut App,
 7900) {
 7901    let destination_is_different = from_pane != to_pane;
 7902    let mut moved_items = 0;
 7903    for (item_ix, item_handle) in from_pane
 7904        .read(cx)
 7905        .items()
 7906        .enumerate()
 7907        .map(|(ix, item)| (ix, item.clone()))
 7908        .collect::<Vec<_>>()
 7909    {
 7910        let ix = item_ix - moved_items;
 7911        if destination_is_different {
 7912            // Close item from previous pane
 7913            from_pane.update(cx, |source, cx| {
 7914                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 7915            });
 7916            moved_items += 1;
 7917        }
 7918
 7919        // This automatically removes duplicate items in the pane
 7920        to_pane.update(cx, |destination, cx| {
 7921            destination.add_item(item_handle, true, true, None, window, cx);
 7922            window.focus(&destination.focus_handle(cx))
 7923        });
 7924    }
 7925}
 7926
 7927pub fn move_item(
 7928    source: &Entity<Pane>,
 7929    destination: &Entity<Pane>,
 7930    item_id_to_move: EntityId,
 7931    destination_index: usize,
 7932    activate: bool,
 7933    window: &mut Window,
 7934    cx: &mut App,
 7935) {
 7936    let Some((item_ix, item_handle)) = source
 7937        .read(cx)
 7938        .items()
 7939        .enumerate()
 7940        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 7941        .map(|(ix, item)| (ix, item.clone()))
 7942    else {
 7943        // Tab was closed during drag
 7944        return;
 7945    };
 7946
 7947    if source != destination {
 7948        // Close item from previous pane
 7949        source.update(cx, |source, cx| {
 7950            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 7951        });
 7952    }
 7953
 7954    // This automatically removes duplicate items in the pane
 7955    destination.update(cx, |destination, cx| {
 7956        destination.add_item_inner(
 7957            item_handle,
 7958            activate,
 7959            activate,
 7960            activate,
 7961            Some(destination_index),
 7962            window,
 7963            cx,
 7964        );
 7965        if activate {
 7966            window.focus(&destination.focus_handle(cx))
 7967        }
 7968    });
 7969}
 7970
 7971pub fn move_active_item(
 7972    source: &Entity<Pane>,
 7973    destination: &Entity<Pane>,
 7974    focus_destination: bool,
 7975    close_if_empty: bool,
 7976    window: &mut Window,
 7977    cx: &mut App,
 7978) {
 7979    if source == destination {
 7980        return;
 7981    }
 7982    let Some(active_item) = source.read(cx).active_item() else {
 7983        return;
 7984    };
 7985    source.update(cx, |source_pane, cx| {
 7986        let item_id = active_item.item_id();
 7987        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 7988        destination.update(cx, |target_pane, cx| {
 7989            target_pane.add_item(
 7990                active_item,
 7991                focus_destination,
 7992                focus_destination,
 7993                Some(target_pane.items_len()),
 7994                window,
 7995                cx,
 7996            );
 7997        });
 7998    });
 7999}
 8000
 8001pub fn clone_active_item(
 8002    workspace_id: Option<WorkspaceId>,
 8003    source: &Entity<Pane>,
 8004    destination: &Entity<Pane>,
 8005    focus_destination: bool,
 8006    window: &mut Window,
 8007    cx: &mut App,
 8008) {
 8009    if source == destination {
 8010        return;
 8011    }
 8012    let Some(active_item) = source.read(cx).active_item() else {
 8013        return;
 8014    };
 8015    destination.update(cx, |target_pane, cx| {
 8016        let Some(clone) = active_item.clone_on_split(workspace_id, window, cx) else {
 8017            return;
 8018        };
 8019        target_pane.add_item(
 8020            clone,
 8021            focus_destination,
 8022            focus_destination,
 8023            Some(target_pane.items_len()),
 8024            window,
 8025            cx,
 8026        );
 8027    });
 8028}
 8029
 8030#[derive(Debug)]
 8031pub struct WorkspacePosition {
 8032    pub window_bounds: Option<WindowBounds>,
 8033    pub display: Option<Uuid>,
 8034    pub centered_layout: bool,
 8035}
 8036
 8037pub fn ssh_workspace_position_from_db(
 8038    host: String,
 8039    port: Option<u16>,
 8040    user: Option<String>,
 8041    paths_to_open: &[PathBuf],
 8042    cx: &App,
 8043) -> Task<Result<WorkspacePosition>> {
 8044    let paths = paths_to_open
 8045        .iter()
 8046        .map(|path| path.to_string_lossy().to_string())
 8047        .collect::<Vec<_>>();
 8048
 8049    cx.background_spawn(async move {
 8050        let serialized_ssh_project = persistence::DB
 8051            .get_or_create_ssh_project(host, port, paths, user)
 8052            .await
 8053            .context("fetching serialized ssh project")?;
 8054        let serialized_workspace =
 8055            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 8056
 8057        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8058            (Some(WindowBounds::Windowed(bounds)), None)
 8059        } else {
 8060            let restorable_bounds = serialized_workspace
 8061                .as_ref()
 8062                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8063                .or_else(|| {
 8064                    let (display, window_bounds) = DB.last_window().log_err()?;
 8065                    Some((display?, window_bounds?))
 8066                });
 8067
 8068            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8069                (Some(serialized_status.0), Some(serialized_display))
 8070            } else {
 8071                (None, None)
 8072            }
 8073        };
 8074
 8075        let centered_layout = serialized_workspace
 8076            .as_ref()
 8077            .map(|w| w.centered_layout)
 8078            .unwrap_or(false);
 8079
 8080        Ok(WorkspacePosition {
 8081            window_bounds,
 8082            display,
 8083            centered_layout,
 8084        })
 8085    })
 8086}
 8087
 8088pub fn with_active_or_new_workspace(
 8089    cx: &mut App,
 8090    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8091) {
 8092    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8093        Some(workspace) => {
 8094            cx.defer(move |cx| {
 8095                workspace
 8096                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8097                    .log_err();
 8098            });
 8099        }
 8100        None => {
 8101            let app_state = AppState::global(cx);
 8102            if let Some(app_state) = app_state.upgrade() {
 8103                open_new(
 8104                    OpenOptions::default(),
 8105                    app_state,
 8106                    cx,
 8107                    move |workspace, window, cx| f(workspace, window, cx),
 8108                )
 8109                .detach_and_log_err(cx);
 8110            }
 8111        }
 8112    }
 8113}
 8114
 8115#[cfg(test)]
 8116mod tests {
 8117    use std::{cell::RefCell, rc::Rc};
 8118
 8119    use super::*;
 8120    use crate::{
 8121        dock::{PanelEvent, test::TestPanel},
 8122        item::{
 8123            ItemEvent,
 8124            test::{TestItem, TestProjectItem},
 8125        },
 8126    };
 8127    use fs::FakeFs;
 8128    use gpui::{
 8129        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8130        UpdateGlobal, VisualTestContext, px,
 8131    };
 8132    use project::{Project, ProjectEntryId};
 8133    use serde_json::json;
 8134    use settings::SettingsStore;
 8135
 8136    #[gpui::test]
 8137    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8138        init_test(cx);
 8139
 8140        let fs = FakeFs::new(cx.executor());
 8141        let project = Project::test(fs, [], cx).await;
 8142        let (workspace, cx) =
 8143            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8144
 8145        // Adding an item with no ambiguity renders the tab without detail.
 8146        let item1 = cx.new(|cx| {
 8147            let mut item = TestItem::new(cx);
 8148            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8149            item
 8150        });
 8151        workspace.update_in(cx, |workspace, window, cx| {
 8152            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8153        });
 8154        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8155
 8156        // Adding an item that creates ambiguity increases the level of detail on
 8157        // both tabs.
 8158        let item2 = cx.new_window_entity(|_window, cx| {
 8159            let mut item = TestItem::new(cx);
 8160            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8161            item
 8162        });
 8163        workspace.update_in(cx, |workspace, window, cx| {
 8164            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8165        });
 8166        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8167        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8168
 8169        // Adding an item that creates ambiguity increases the level of detail only
 8170        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8171        // we stop at the highest detail available.
 8172        let item3 = cx.new(|cx| {
 8173            let mut item = TestItem::new(cx);
 8174            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8175            item
 8176        });
 8177        workspace.update_in(cx, |workspace, window, cx| {
 8178            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8179        });
 8180        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8181        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8182        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8183    }
 8184
 8185    #[gpui::test]
 8186    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8187        init_test(cx);
 8188
 8189        let fs = FakeFs::new(cx.executor());
 8190        fs.insert_tree(
 8191            "/root1",
 8192            json!({
 8193                "one.txt": "",
 8194                "two.txt": "",
 8195            }),
 8196        )
 8197        .await;
 8198        fs.insert_tree(
 8199            "/root2",
 8200            json!({
 8201                "three.txt": "",
 8202            }),
 8203        )
 8204        .await;
 8205
 8206        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8207        let (workspace, cx) =
 8208            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8209        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8210        let worktree_id = project.update(cx, |project, cx| {
 8211            project.worktrees(cx).next().unwrap().read(cx).id()
 8212        });
 8213
 8214        let item1 = cx.new(|cx| {
 8215            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8216        });
 8217        let item2 = cx.new(|cx| {
 8218            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8219        });
 8220
 8221        // Add an item to an empty pane
 8222        workspace.update_in(cx, |workspace, window, cx| {
 8223            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8224        });
 8225        project.update(cx, |project, cx| {
 8226            assert_eq!(
 8227                project.active_entry(),
 8228                project
 8229                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8230                    .map(|e| e.id)
 8231            );
 8232        });
 8233        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8234
 8235        // Add a second item to a non-empty pane
 8236        workspace.update_in(cx, |workspace, window, cx| {
 8237            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8238        });
 8239        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8240        project.update(cx, |project, cx| {
 8241            assert_eq!(
 8242                project.active_entry(),
 8243                project
 8244                    .entry_for_path(&(worktree_id, "two.txt").into(), cx)
 8245                    .map(|e| e.id)
 8246            );
 8247        });
 8248
 8249        // Close the active item
 8250        pane.update_in(cx, |pane, window, cx| {
 8251            pane.close_active_item(&Default::default(), window, cx)
 8252        })
 8253        .await
 8254        .unwrap();
 8255        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8256        project.update(cx, |project, cx| {
 8257            assert_eq!(
 8258                project.active_entry(),
 8259                project
 8260                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8261                    .map(|e| e.id)
 8262            );
 8263        });
 8264
 8265        // Add a project folder
 8266        project
 8267            .update(cx, |project, cx| {
 8268                project.find_or_create_worktree("root2", true, cx)
 8269            })
 8270            .await
 8271            .unwrap();
 8272        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8273
 8274        // Remove a project folder
 8275        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8276        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8277    }
 8278
 8279    #[gpui::test]
 8280    async fn test_close_window(cx: &mut TestAppContext) {
 8281        init_test(cx);
 8282
 8283        let fs = FakeFs::new(cx.executor());
 8284        fs.insert_tree("/root", json!({ "one": "" })).await;
 8285
 8286        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8287        let (workspace, cx) =
 8288            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8289
 8290        // When there are no dirty items, there's nothing to do.
 8291        let item1 = cx.new(TestItem::new);
 8292        workspace.update_in(cx, |w, window, cx| {
 8293            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8294        });
 8295        let task = workspace.update_in(cx, |w, window, cx| {
 8296            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8297        });
 8298        assert!(task.await.unwrap());
 8299
 8300        // When there are dirty untitled items, prompt to save each one. If the user
 8301        // cancels any prompt, then abort.
 8302        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8303        let item3 = cx.new(|cx| {
 8304            TestItem::new(cx)
 8305                .with_dirty(true)
 8306                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8307        });
 8308        workspace.update_in(cx, |w, window, cx| {
 8309            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8310            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8311        });
 8312        let task = workspace.update_in(cx, |w, window, cx| {
 8313            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8314        });
 8315        cx.executor().run_until_parked();
 8316        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8317        cx.executor().run_until_parked();
 8318        assert!(!cx.has_pending_prompt());
 8319        assert!(!task.await.unwrap());
 8320    }
 8321
 8322    #[gpui::test]
 8323    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8324        init_test(cx);
 8325
 8326        // Register TestItem as a serializable item
 8327        cx.update(|cx| {
 8328            register_serializable_item::<TestItem>(cx);
 8329        });
 8330
 8331        let fs = FakeFs::new(cx.executor());
 8332        fs.insert_tree("/root", json!({ "one": "" })).await;
 8333
 8334        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8335        let (workspace, cx) =
 8336            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8337
 8338        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8339        let item1 = cx.new(|cx| {
 8340            TestItem::new(cx)
 8341                .with_dirty(true)
 8342                .with_serialize(|| Some(Task::ready(Ok(()))))
 8343        });
 8344        let item2 = cx.new(|cx| {
 8345            TestItem::new(cx)
 8346                .with_dirty(true)
 8347                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8348                .with_serialize(|| Some(Task::ready(Ok(()))))
 8349        });
 8350        workspace.update_in(cx, |w, window, cx| {
 8351            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8352            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8353        });
 8354        let task = workspace.update_in(cx, |w, window, cx| {
 8355            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8356        });
 8357        assert!(task.await.unwrap());
 8358    }
 8359
 8360    #[gpui::test]
 8361    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8362        init_test(cx);
 8363
 8364        let fs = FakeFs::new(cx.executor());
 8365
 8366        let project = Project::test(fs, None, cx).await;
 8367        let (workspace, cx) =
 8368            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8369
 8370        let item1 = cx.new(|cx| {
 8371            TestItem::new(cx)
 8372                .with_dirty(true)
 8373                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8374        });
 8375        let item2 = cx.new(|cx| {
 8376            TestItem::new(cx)
 8377                .with_dirty(true)
 8378                .with_conflict(true)
 8379                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8380        });
 8381        let item3 = cx.new(|cx| {
 8382            TestItem::new(cx)
 8383                .with_dirty(true)
 8384                .with_conflict(true)
 8385                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8386        });
 8387        let item4 = cx.new(|cx| {
 8388            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8389                let project_item = TestProjectItem::new_untitled(cx);
 8390                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8391                project_item
 8392            }])
 8393        });
 8394        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8395            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8396            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8397            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8398            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8399            workspace.active_pane().clone()
 8400        });
 8401
 8402        let close_items = pane.update_in(cx, |pane, window, cx| {
 8403            pane.activate_item(1, true, true, window, cx);
 8404            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8405            let item1_id = item1.item_id();
 8406            let item3_id = item3.item_id();
 8407            let item4_id = item4.item_id();
 8408            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8409                [item1_id, item3_id, item4_id].contains(&id)
 8410            })
 8411        });
 8412        cx.executor().run_until_parked();
 8413
 8414        assert!(cx.has_pending_prompt());
 8415        cx.simulate_prompt_answer("Save all");
 8416
 8417        cx.executor().run_until_parked();
 8418
 8419        // Item 1 is saved. There's a prompt to save item 3.
 8420        pane.update(cx, |pane, cx| {
 8421            assert_eq!(item1.read(cx).save_count, 1);
 8422            assert_eq!(item1.read(cx).save_as_count, 0);
 8423            assert_eq!(item1.read(cx).reload_count, 0);
 8424            assert_eq!(pane.items_len(), 3);
 8425            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8426        });
 8427        assert!(cx.has_pending_prompt());
 8428
 8429        // Cancel saving item 3.
 8430        cx.simulate_prompt_answer("Discard");
 8431        cx.executor().run_until_parked();
 8432
 8433        // Item 3 is reloaded. There's a prompt to save item 4.
 8434        pane.update(cx, |pane, cx| {
 8435            assert_eq!(item3.read(cx).save_count, 0);
 8436            assert_eq!(item3.read(cx).save_as_count, 0);
 8437            assert_eq!(item3.read(cx).reload_count, 1);
 8438            assert_eq!(pane.items_len(), 2);
 8439            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8440        });
 8441
 8442        // There's a prompt for a path for item 4.
 8443        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8444        close_items.await.unwrap();
 8445
 8446        // The requested items are closed.
 8447        pane.update(cx, |pane, cx| {
 8448            assert_eq!(item4.read(cx).save_count, 0);
 8449            assert_eq!(item4.read(cx).save_as_count, 1);
 8450            assert_eq!(item4.read(cx).reload_count, 0);
 8451            assert_eq!(pane.items_len(), 1);
 8452            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8453        });
 8454    }
 8455
 8456    #[gpui::test]
 8457    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8458        init_test(cx);
 8459
 8460        let fs = FakeFs::new(cx.executor());
 8461        let project = Project::test(fs, [], cx).await;
 8462        let (workspace, cx) =
 8463            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8464
 8465        // Create several workspace items with single project entries, and two
 8466        // workspace items with multiple project entries.
 8467        let single_entry_items = (0..=4)
 8468            .map(|project_entry_id| {
 8469                cx.new(|cx| {
 8470                    TestItem::new(cx)
 8471                        .with_dirty(true)
 8472                        .with_project_items(&[dirty_project_item(
 8473                            project_entry_id,
 8474                            &format!("{project_entry_id}.txt"),
 8475                            cx,
 8476                        )])
 8477                })
 8478            })
 8479            .collect::<Vec<_>>();
 8480        let item_2_3 = cx.new(|cx| {
 8481            TestItem::new(cx)
 8482                .with_dirty(true)
 8483                .with_singleton(false)
 8484                .with_project_items(&[
 8485                    single_entry_items[2].read(cx).project_items[0].clone(),
 8486                    single_entry_items[3].read(cx).project_items[0].clone(),
 8487                ])
 8488        });
 8489        let item_3_4 = cx.new(|cx| {
 8490            TestItem::new(cx)
 8491                .with_dirty(true)
 8492                .with_singleton(false)
 8493                .with_project_items(&[
 8494                    single_entry_items[3].read(cx).project_items[0].clone(),
 8495                    single_entry_items[4].read(cx).project_items[0].clone(),
 8496                ])
 8497        });
 8498
 8499        // Create two panes that contain the following project entries:
 8500        //   left pane:
 8501        //     multi-entry items:   (2, 3)
 8502        //     single-entry items:  0, 2, 3, 4
 8503        //   right pane:
 8504        //     single-entry items:  4, 1
 8505        //     multi-entry items:   (3, 4)
 8506        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8507            let left_pane = workspace.active_pane().clone();
 8508            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8509            workspace.add_item_to_active_pane(
 8510                single_entry_items[0].boxed_clone(),
 8511                None,
 8512                true,
 8513                window,
 8514                cx,
 8515            );
 8516            workspace.add_item_to_active_pane(
 8517                single_entry_items[2].boxed_clone(),
 8518                None,
 8519                true,
 8520                window,
 8521                cx,
 8522            );
 8523            workspace.add_item_to_active_pane(
 8524                single_entry_items[3].boxed_clone(),
 8525                None,
 8526                true,
 8527                window,
 8528                cx,
 8529            );
 8530            workspace.add_item_to_active_pane(
 8531                single_entry_items[4].boxed_clone(),
 8532                None,
 8533                true,
 8534                window,
 8535                cx,
 8536            );
 8537
 8538            let right_pane = workspace
 8539                .split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx)
 8540                .unwrap();
 8541
 8542            right_pane.update(cx, |pane, cx| {
 8543                pane.add_item(
 8544                    single_entry_items[1].boxed_clone(),
 8545                    true,
 8546                    true,
 8547                    None,
 8548                    window,
 8549                    cx,
 8550                );
 8551                pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8552            });
 8553
 8554            (left_pane, right_pane)
 8555        });
 8556
 8557        cx.focus(&right_pane);
 8558
 8559        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8560            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8561                .unwrap()
 8562        });
 8563        cx.executor().run_until_parked();
 8564
 8565        let msg = cx.pending_prompt().unwrap().0;
 8566        assert!(msg.contains("1.txt"));
 8567        assert!(!msg.contains("2.txt"));
 8568        assert!(!msg.contains("3.txt"));
 8569        assert!(!msg.contains("4.txt"));
 8570
 8571        cx.simulate_prompt_answer("Cancel");
 8572        close.await;
 8573
 8574        left_pane
 8575            .update_in(cx, |left_pane, window, cx| {
 8576                left_pane.close_item_by_id(
 8577                    single_entry_items[3].entity_id(),
 8578                    SaveIntent::Skip,
 8579                    window,
 8580                    cx,
 8581                )
 8582            })
 8583            .await
 8584            .unwrap();
 8585
 8586        close = right_pane.update_in(cx, |pane, window, cx| {
 8587            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8588                .unwrap()
 8589        });
 8590        cx.executor().run_until_parked();
 8591
 8592        let details = cx.pending_prompt().unwrap().1;
 8593        assert!(details.contains("1.txt"));
 8594        assert!(!details.contains("2.txt"));
 8595        assert!(details.contains("3.txt"));
 8596        // ideally this assertion could be made, but today we can only
 8597        // save whole items not project items, so the orphaned item 3 causes
 8598        // 4 to be saved too.
 8599        // assert!(!details.contains("4.txt"));
 8600
 8601        cx.simulate_prompt_answer("Save all");
 8602
 8603        cx.executor().run_until_parked();
 8604        close.await;
 8605        right_pane.read_with(cx, |pane, _| {
 8606            assert_eq!(pane.items_len(), 0);
 8607        });
 8608    }
 8609
 8610    #[gpui::test]
 8611    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8612        init_test(cx);
 8613
 8614        let fs = FakeFs::new(cx.executor());
 8615        let project = Project::test(fs, [], cx).await;
 8616        let (workspace, cx) =
 8617            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8618        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8619
 8620        let item = cx.new(|cx| {
 8621            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8622        });
 8623        let item_id = item.entity_id();
 8624        workspace.update_in(cx, |workspace, window, cx| {
 8625            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8626        });
 8627
 8628        // Autosave on window change.
 8629        item.update(cx, |item, cx| {
 8630            SettingsStore::update_global(cx, |settings, cx| {
 8631                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8632                    settings.autosave = Some(AutosaveSetting::OnWindowChange);
 8633                })
 8634            });
 8635            item.is_dirty = true;
 8636        });
 8637
 8638        // Deactivating the window saves the file.
 8639        cx.deactivate_window();
 8640        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8641
 8642        // Re-activating the window doesn't save the file.
 8643        cx.update(|window, _| window.activate_window());
 8644        cx.executor().run_until_parked();
 8645        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8646
 8647        // Autosave on focus change.
 8648        item.update_in(cx, |item, window, cx| {
 8649            cx.focus_self(window);
 8650            SettingsStore::update_global(cx, |settings, cx| {
 8651                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8652                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8653                })
 8654            });
 8655            item.is_dirty = true;
 8656        });
 8657
 8658        // Blurring the item saves the file.
 8659        item.update_in(cx, |_, window, _| window.blur());
 8660        cx.executor().run_until_parked();
 8661        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8662
 8663        // Deactivating the window still saves the file.
 8664        item.update_in(cx, |item, window, cx| {
 8665            cx.focus_self(window);
 8666            item.is_dirty = true;
 8667        });
 8668        cx.deactivate_window();
 8669        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8670
 8671        // Autosave after delay.
 8672        item.update(cx, |item, cx| {
 8673            SettingsStore::update_global(cx, |settings, cx| {
 8674                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8675                    settings.autosave = Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
 8676                })
 8677            });
 8678            item.is_dirty = true;
 8679            cx.emit(ItemEvent::Edit);
 8680        });
 8681
 8682        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 8683        cx.executor().advance_clock(Duration::from_millis(250));
 8684        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 8685
 8686        // After delay expires, the file is saved.
 8687        cx.executor().advance_clock(Duration::from_millis(250));
 8688        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8689
 8690        // Autosave on focus change, ensuring closing the tab counts as such.
 8691        item.update(cx, |item, cx| {
 8692            SettingsStore::update_global(cx, |settings, cx| {
 8693                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8694                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8695                })
 8696            });
 8697            item.is_dirty = true;
 8698            for project_item in &mut item.project_items {
 8699                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8700            }
 8701        });
 8702
 8703        pane.update_in(cx, |pane, window, cx| {
 8704            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8705        })
 8706        .await
 8707        .unwrap();
 8708        assert!(!cx.has_pending_prompt());
 8709        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8710
 8711        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8712        workspace.update_in(cx, |workspace, window, cx| {
 8713            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8714        });
 8715        item.update_in(cx, |item, window, cx| {
 8716            item.project_items[0].update(cx, |item, _| {
 8717                item.entry_id = None;
 8718            });
 8719            item.is_dirty = true;
 8720            window.blur();
 8721        });
 8722        cx.run_until_parked();
 8723        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8724
 8725        // Ensure autosave is prevented for deleted files also when closing the buffer.
 8726        let _close_items = pane.update_in(cx, |pane, window, cx| {
 8727            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8728        });
 8729        cx.run_until_parked();
 8730        assert!(cx.has_pending_prompt());
 8731        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8732    }
 8733
 8734    #[gpui::test]
 8735    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 8736        init_test(cx);
 8737
 8738        let fs = FakeFs::new(cx.executor());
 8739
 8740        let project = Project::test(fs, [], cx).await;
 8741        let (workspace, cx) =
 8742            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8743
 8744        let item = cx.new(|cx| {
 8745            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8746        });
 8747        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8748        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 8749        let toolbar_notify_count = Rc::new(RefCell::new(0));
 8750
 8751        workspace.update_in(cx, |workspace, window, cx| {
 8752            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8753            let toolbar_notification_count = toolbar_notify_count.clone();
 8754            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 8755                *toolbar_notification_count.borrow_mut() += 1
 8756            })
 8757            .detach();
 8758        });
 8759
 8760        pane.read_with(cx, |pane, _| {
 8761            assert!(!pane.can_navigate_backward());
 8762            assert!(!pane.can_navigate_forward());
 8763        });
 8764
 8765        item.update_in(cx, |item, _, cx| {
 8766            item.set_state("one".to_string(), cx);
 8767        });
 8768
 8769        // Toolbar must be notified to re-render the navigation buttons
 8770        assert_eq!(*toolbar_notify_count.borrow(), 1);
 8771
 8772        pane.read_with(cx, |pane, _| {
 8773            assert!(pane.can_navigate_backward());
 8774            assert!(!pane.can_navigate_forward());
 8775        });
 8776
 8777        workspace
 8778            .update_in(cx, |workspace, window, cx| {
 8779                workspace.go_back(pane.downgrade(), window, cx)
 8780            })
 8781            .await
 8782            .unwrap();
 8783
 8784        assert_eq!(*toolbar_notify_count.borrow(), 2);
 8785        pane.read_with(cx, |pane, _| {
 8786            assert!(!pane.can_navigate_backward());
 8787            assert!(pane.can_navigate_forward());
 8788        });
 8789    }
 8790
 8791    #[gpui::test]
 8792    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 8793        init_test(cx);
 8794        let fs = FakeFs::new(cx.executor());
 8795
 8796        let project = Project::test(fs, [], cx).await;
 8797        let (workspace, cx) =
 8798            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8799
 8800        let panel = workspace.update_in(cx, |workspace, window, cx| {
 8801            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8802            workspace.add_panel(panel.clone(), window, cx);
 8803
 8804            workspace
 8805                .right_dock()
 8806                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 8807
 8808            panel
 8809        });
 8810
 8811        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8812        pane.update_in(cx, |pane, window, cx| {
 8813            let item = cx.new(TestItem::new);
 8814            pane.add_item(Box::new(item), true, true, None, window, cx);
 8815        });
 8816
 8817        // Transfer focus from center to panel
 8818        workspace.update_in(cx, |workspace, window, cx| {
 8819            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8820        });
 8821
 8822        workspace.update_in(cx, |workspace, window, cx| {
 8823            assert!(workspace.right_dock().read(cx).is_open());
 8824            assert!(!panel.is_zoomed(window, cx));
 8825            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8826        });
 8827
 8828        // Transfer focus from panel to center
 8829        workspace.update_in(cx, |workspace, window, cx| {
 8830            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8831        });
 8832
 8833        workspace.update_in(cx, |workspace, window, cx| {
 8834            assert!(workspace.right_dock().read(cx).is_open());
 8835            assert!(!panel.is_zoomed(window, cx));
 8836            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8837        });
 8838
 8839        // Close the dock
 8840        workspace.update_in(cx, |workspace, window, cx| {
 8841            workspace.toggle_dock(DockPosition::Right, window, cx);
 8842        });
 8843
 8844        workspace.update_in(cx, |workspace, window, cx| {
 8845            assert!(!workspace.right_dock().read(cx).is_open());
 8846            assert!(!panel.is_zoomed(window, cx));
 8847            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8848        });
 8849
 8850        // Open the dock
 8851        workspace.update_in(cx, |workspace, window, cx| {
 8852            workspace.toggle_dock(DockPosition::Right, window, cx);
 8853        });
 8854
 8855        workspace.update_in(cx, |workspace, window, cx| {
 8856            assert!(workspace.right_dock().read(cx).is_open());
 8857            assert!(!panel.is_zoomed(window, cx));
 8858            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8859        });
 8860
 8861        // Focus and zoom panel
 8862        panel.update_in(cx, |panel, window, cx| {
 8863            cx.focus_self(window);
 8864            panel.set_zoomed(true, window, cx)
 8865        });
 8866
 8867        workspace.update_in(cx, |workspace, window, cx| {
 8868            assert!(workspace.right_dock().read(cx).is_open());
 8869            assert!(panel.is_zoomed(window, cx));
 8870            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8871        });
 8872
 8873        // Transfer focus to the center closes the dock
 8874        workspace.update_in(cx, |workspace, window, cx| {
 8875            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8876        });
 8877
 8878        workspace.update_in(cx, |workspace, window, cx| {
 8879            assert!(!workspace.right_dock().read(cx).is_open());
 8880            assert!(panel.is_zoomed(window, cx));
 8881            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8882        });
 8883
 8884        // Transferring focus back to the panel keeps it zoomed
 8885        workspace.update_in(cx, |workspace, window, cx| {
 8886            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8887        });
 8888
 8889        workspace.update_in(cx, |workspace, window, cx| {
 8890            assert!(workspace.right_dock().read(cx).is_open());
 8891            assert!(panel.is_zoomed(window, cx));
 8892            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8893        });
 8894
 8895        // Close the dock while it is zoomed
 8896        workspace.update_in(cx, |workspace, window, cx| {
 8897            workspace.toggle_dock(DockPosition::Right, window, cx)
 8898        });
 8899
 8900        workspace.update_in(cx, |workspace, window, cx| {
 8901            assert!(!workspace.right_dock().read(cx).is_open());
 8902            assert!(panel.is_zoomed(window, cx));
 8903            assert!(workspace.zoomed.is_none());
 8904            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8905        });
 8906
 8907        // Opening the dock, when it's zoomed, retains focus
 8908        workspace.update_in(cx, |workspace, window, cx| {
 8909            workspace.toggle_dock(DockPosition::Right, window, cx)
 8910        });
 8911
 8912        workspace.update_in(cx, |workspace, window, cx| {
 8913            assert!(workspace.right_dock().read(cx).is_open());
 8914            assert!(panel.is_zoomed(window, cx));
 8915            assert!(workspace.zoomed.is_some());
 8916            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8917        });
 8918
 8919        // Unzoom and close the panel, zoom the active pane.
 8920        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 8921        workspace.update_in(cx, |workspace, window, cx| {
 8922            workspace.toggle_dock(DockPosition::Right, window, cx)
 8923        });
 8924        pane.update_in(cx, |pane, window, cx| {
 8925            pane.toggle_zoom(&Default::default(), window, cx)
 8926        });
 8927
 8928        // Opening a dock unzooms the pane.
 8929        workspace.update_in(cx, |workspace, window, cx| {
 8930            workspace.toggle_dock(DockPosition::Right, window, cx)
 8931        });
 8932        workspace.update_in(cx, |workspace, window, cx| {
 8933            let pane = pane.read(cx);
 8934            assert!(!pane.is_zoomed());
 8935            assert!(!pane.focus_handle(cx).is_focused(window));
 8936            assert!(workspace.right_dock().read(cx).is_open());
 8937            assert!(workspace.zoomed.is_none());
 8938        });
 8939    }
 8940
 8941    #[gpui::test]
 8942    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 8943        init_test(cx);
 8944
 8945        let fs = FakeFs::new(cx.executor());
 8946
 8947        let project = Project::test(fs, None, cx).await;
 8948        let (workspace, cx) =
 8949            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8950
 8951        // Let's arrange the panes like this:
 8952        //
 8953        // +-----------------------+
 8954        // |         top           |
 8955        // +------+--------+-------+
 8956        // | left | center | right |
 8957        // +------+--------+-------+
 8958        // |        bottom         |
 8959        // +-----------------------+
 8960
 8961        let top_item = cx.new(|cx| {
 8962            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 8963        });
 8964        let bottom_item = cx.new(|cx| {
 8965            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 8966        });
 8967        let left_item = cx.new(|cx| {
 8968            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 8969        });
 8970        let right_item = cx.new(|cx| {
 8971            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 8972        });
 8973        let center_item = cx.new(|cx| {
 8974            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 8975        });
 8976
 8977        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8978            let top_pane_id = workspace.active_pane().entity_id();
 8979            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 8980            workspace.split_pane(
 8981                workspace.active_pane().clone(),
 8982                SplitDirection::Down,
 8983                window,
 8984                cx,
 8985            );
 8986            top_pane_id
 8987        });
 8988        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8989            let bottom_pane_id = workspace.active_pane().entity_id();
 8990            workspace.add_item_to_active_pane(
 8991                Box::new(bottom_item.clone()),
 8992                None,
 8993                false,
 8994                window,
 8995                cx,
 8996            );
 8997            workspace.split_pane(
 8998                workspace.active_pane().clone(),
 8999                SplitDirection::Up,
 9000                window,
 9001                cx,
 9002            );
 9003            bottom_pane_id
 9004        });
 9005        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9006            let left_pane_id = workspace.active_pane().entity_id();
 9007            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9008            workspace.split_pane(
 9009                workspace.active_pane().clone(),
 9010                SplitDirection::Right,
 9011                window,
 9012                cx,
 9013            );
 9014            left_pane_id
 9015        });
 9016        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9017            let right_pane_id = workspace.active_pane().entity_id();
 9018            workspace.add_item_to_active_pane(
 9019                Box::new(right_item.clone()),
 9020                None,
 9021                false,
 9022                window,
 9023                cx,
 9024            );
 9025            workspace.split_pane(
 9026                workspace.active_pane().clone(),
 9027                SplitDirection::Left,
 9028                window,
 9029                cx,
 9030            );
 9031            right_pane_id
 9032        });
 9033        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9034            let center_pane_id = workspace.active_pane().entity_id();
 9035            workspace.add_item_to_active_pane(
 9036                Box::new(center_item.clone()),
 9037                None,
 9038                false,
 9039                window,
 9040                cx,
 9041            );
 9042            center_pane_id
 9043        });
 9044        cx.executor().run_until_parked();
 9045
 9046        workspace.update_in(cx, |workspace, window, cx| {
 9047            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9048
 9049            // Join into next from center pane into right
 9050            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9051        });
 9052
 9053        workspace.update_in(cx, |workspace, window, cx| {
 9054            let active_pane = workspace.active_pane();
 9055            assert_eq!(right_pane_id, active_pane.entity_id());
 9056            assert_eq!(2, active_pane.read(cx).items_len());
 9057            let item_ids_in_pane =
 9058                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9059            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9060            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9061
 9062            // Join into next from right pane into bottom
 9063            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9064        });
 9065
 9066        workspace.update_in(cx, |workspace, window, cx| {
 9067            let active_pane = workspace.active_pane();
 9068            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9069            assert_eq!(3, active_pane.read(cx).items_len());
 9070            let item_ids_in_pane =
 9071                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9072            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9073            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9074            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9075
 9076            // Join into next from bottom pane into left
 9077            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9078        });
 9079
 9080        workspace.update_in(cx, |workspace, window, cx| {
 9081            let active_pane = workspace.active_pane();
 9082            assert_eq!(left_pane_id, active_pane.entity_id());
 9083            assert_eq!(4, active_pane.read(cx).items_len());
 9084            let item_ids_in_pane =
 9085                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9086            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9087            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9088            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9089            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9090
 9091            // Join into next from left pane into top
 9092            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9093        });
 9094
 9095        workspace.update_in(cx, |workspace, window, cx| {
 9096            let active_pane = workspace.active_pane();
 9097            assert_eq!(top_pane_id, active_pane.entity_id());
 9098            assert_eq!(5, active_pane.read(cx).items_len());
 9099            let item_ids_in_pane =
 9100                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9101            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9102            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9103            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9104            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9105            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9106
 9107            // Single pane left: no-op
 9108            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9109        });
 9110
 9111        workspace.update(cx, |workspace, _cx| {
 9112            let active_pane = workspace.active_pane();
 9113            assert_eq!(top_pane_id, active_pane.entity_id());
 9114        });
 9115    }
 9116
 9117    fn add_an_item_to_active_pane(
 9118        cx: &mut VisualTestContext,
 9119        workspace: &Entity<Workspace>,
 9120        item_id: u64,
 9121    ) -> Entity<TestItem> {
 9122        let item = cx.new(|cx| {
 9123            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9124                item_id,
 9125                "item{item_id}.txt",
 9126                cx,
 9127            )])
 9128        });
 9129        workspace.update_in(cx, |workspace, window, cx| {
 9130            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9131        });
 9132        return item;
 9133    }
 9134
 9135    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9136        return workspace.update_in(cx, |workspace, window, cx| {
 9137            let new_pane = workspace.split_pane(
 9138                workspace.active_pane().clone(),
 9139                SplitDirection::Right,
 9140                window,
 9141                cx,
 9142            );
 9143            new_pane
 9144        });
 9145    }
 9146
 9147    #[gpui::test]
 9148    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9149        init_test(cx);
 9150        let fs = FakeFs::new(cx.executor());
 9151        let project = Project::test(fs, None, cx).await;
 9152        let (workspace, cx) =
 9153            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9154
 9155        add_an_item_to_active_pane(cx, &workspace, 1);
 9156        split_pane(cx, &workspace);
 9157        add_an_item_to_active_pane(cx, &workspace, 2);
 9158        split_pane(cx, &workspace); // empty pane
 9159        split_pane(cx, &workspace);
 9160        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9161
 9162        cx.executor().run_until_parked();
 9163
 9164        workspace.update(cx, |workspace, cx| {
 9165            let num_panes = workspace.panes().len();
 9166            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9167            let active_item = workspace
 9168                .active_pane()
 9169                .read(cx)
 9170                .active_item()
 9171                .expect("item is in focus");
 9172
 9173            assert_eq!(num_panes, 4);
 9174            assert_eq!(num_items_in_current_pane, 1);
 9175            assert_eq!(active_item.item_id(), last_item.item_id());
 9176        });
 9177
 9178        workspace.update_in(cx, |workspace, window, cx| {
 9179            workspace.join_all_panes(window, cx);
 9180        });
 9181
 9182        workspace.update(cx, |workspace, cx| {
 9183            let num_panes = workspace.panes().len();
 9184            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9185            let active_item = workspace
 9186                .active_pane()
 9187                .read(cx)
 9188                .active_item()
 9189                .expect("item is in focus");
 9190
 9191            assert_eq!(num_panes, 1);
 9192            assert_eq!(num_items_in_current_pane, 3);
 9193            assert_eq!(active_item.item_id(), last_item.item_id());
 9194        });
 9195    }
 9196    struct TestModal(FocusHandle);
 9197
 9198    impl TestModal {
 9199        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9200            Self(cx.focus_handle())
 9201        }
 9202    }
 9203
 9204    impl EventEmitter<DismissEvent> for TestModal {}
 9205
 9206    impl Focusable for TestModal {
 9207        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9208            self.0.clone()
 9209        }
 9210    }
 9211
 9212    impl ModalView for TestModal {}
 9213
 9214    impl Render for TestModal {
 9215        fn render(
 9216            &mut self,
 9217            _window: &mut Window,
 9218            _cx: &mut Context<TestModal>,
 9219        ) -> impl IntoElement {
 9220            div().track_focus(&self.0)
 9221        }
 9222    }
 9223
 9224    #[gpui::test]
 9225    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9226        init_test(cx);
 9227        let fs = FakeFs::new(cx.executor());
 9228
 9229        let project = Project::test(fs, [], cx).await;
 9230        let (workspace, cx) =
 9231            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9232
 9233        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9234            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9235            workspace.add_panel(panel_1.clone(), window, cx);
 9236            workspace.toggle_dock(DockPosition::Left, window, cx);
 9237            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9238            workspace.add_panel(panel_2.clone(), window, cx);
 9239            workspace.toggle_dock(DockPosition::Right, window, cx);
 9240
 9241            let left_dock = workspace.left_dock();
 9242            assert_eq!(
 9243                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9244                panel_1.panel_id()
 9245            );
 9246            assert_eq!(
 9247                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9248                panel_1.size(window, cx)
 9249            );
 9250
 9251            left_dock.update(cx, |left_dock, cx| {
 9252                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9253            });
 9254            assert_eq!(
 9255                workspace
 9256                    .right_dock()
 9257                    .read(cx)
 9258                    .visible_panel()
 9259                    .unwrap()
 9260                    .panel_id(),
 9261                panel_2.panel_id(),
 9262            );
 9263
 9264            (panel_1, panel_2)
 9265        });
 9266
 9267        // Move panel_1 to the right
 9268        panel_1.update_in(cx, |panel_1, window, cx| {
 9269            panel_1.set_position(DockPosition::Right, window, cx)
 9270        });
 9271
 9272        workspace.update_in(cx, |workspace, window, cx| {
 9273            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9274            // Since it was the only panel on the left, the left dock should now be closed.
 9275            assert!(!workspace.left_dock().read(cx).is_open());
 9276            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9277            let right_dock = workspace.right_dock();
 9278            assert_eq!(
 9279                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9280                panel_1.panel_id()
 9281            );
 9282            assert_eq!(
 9283                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9284                px(1337.)
 9285            );
 9286
 9287            // Now we move panel_2 to the left
 9288            panel_2.set_position(DockPosition::Left, window, cx);
 9289        });
 9290
 9291        workspace.update(cx, |workspace, cx| {
 9292            // Since panel_2 was not visible on the right, we don't open the left dock.
 9293            assert!(!workspace.left_dock().read(cx).is_open());
 9294            // And the right dock is unaffected in its displaying of panel_1
 9295            assert!(workspace.right_dock().read(cx).is_open());
 9296            assert_eq!(
 9297                workspace
 9298                    .right_dock()
 9299                    .read(cx)
 9300                    .visible_panel()
 9301                    .unwrap()
 9302                    .panel_id(),
 9303                panel_1.panel_id(),
 9304            );
 9305        });
 9306
 9307        // Move panel_1 back to the left
 9308        panel_1.update_in(cx, |panel_1, window, cx| {
 9309            panel_1.set_position(DockPosition::Left, window, cx)
 9310        });
 9311
 9312        workspace.update_in(cx, |workspace, window, cx| {
 9313            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9314            let left_dock = workspace.left_dock();
 9315            assert!(left_dock.read(cx).is_open());
 9316            assert_eq!(
 9317                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9318                panel_1.panel_id()
 9319            );
 9320            assert_eq!(
 9321                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9322                px(1337.)
 9323            );
 9324            // And the right dock should be closed as it no longer has any panels.
 9325            assert!(!workspace.right_dock().read(cx).is_open());
 9326
 9327            // Now we move panel_1 to the bottom
 9328            panel_1.set_position(DockPosition::Bottom, window, cx);
 9329        });
 9330
 9331        workspace.update_in(cx, |workspace, window, cx| {
 9332            // Since panel_1 was visible on the left, we close the left dock.
 9333            assert!(!workspace.left_dock().read(cx).is_open());
 9334            // The bottom dock is sized based on the panel's default size,
 9335            // since the panel orientation changed from vertical to horizontal.
 9336            let bottom_dock = workspace.bottom_dock();
 9337            assert_eq!(
 9338                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9339                panel_1.size(window, cx),
 9340            );
 9341            // Close bottom dock and move panel_1 back to the left.
 9342            bottom_dock.update(cx, |bottom_dock, cx| {
 9343                bottom_dock.set_open(false, window, cx)
 9344            });
 9345            panel_1.set_position(DockPosition::Left, window, cx);
 9346        });
 9347
 9348        // Emit activated event on panel 1
 9349        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9350
 9351        // Now the left dock is open and panel_1 is active and focused.
 9352        workspace.update_in(cx, |workspace, window, cx| {
 9353            let left_dock = workspace.left_dock();
 9354            assert!(left_dock.read(cx).is_open());
 9355            assert_eq!(
 9356                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9357                panel_1.panel_id(),
 9358            );
 9359            assert!(panel_1.focus_handle(cx).is_focused(window));
 9360        });
 9361
 9362        // Emit closed event on panel 2, which is not active
 9363        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9364
 9365        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9366        workspace.update(cx, |workspace, cx| {
 9367            let left_dock = workspace.left_dock();
 9368            assert!(left_dock.read(cx).is_open());
 9369            assert_eq!(
 9370                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9371                panel_1.panel_id(),
 9372            );
 9373        });
 9374
 9375        // Emitting a ZoomIn event shows the panel as zoomed.
 9376        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9377        workspace.read_with(cx, |workspace, _| {
 9378            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9379            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9380        });
 9381
 9382        // Move panel to another dock while it is zoomed
 9383        panel_1.update_in(cx, |panel, window, cx| {
 9384            panel.set_position(DockPosition::Right, window, cx)
 9385        });
 9386        workspace.read_with(cx, |workspace, _| {
 9387            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9388
 9389            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9390        });
 9391
 9392        // This is a helper for getting a:
 9393        // - valid focus on an element,
 9394        // - that isn't a part of the panes and panels system of the Workspace,
 9395        // - and doesn't trigger the 'on_focus_lost' API.
 9396        let focus_other_view = {
 9397            let workspace = workspace.clone();
 9398            move |cx: &mut VisualTestContext| {
 9399                workspace.update_in(cx, |workspace, window, cx| {
 9400                    if let Some(_) = workspace.active_modal::<TestModal>(cx) {
 9401                        workspace.toggle_modal(window, cx, TestModal::new);
 9402                        workspace.toggle_modal(window, cx, TestModal::new);
 9403                    } else {
 9404                        workspace.toggle_modal(window, cx, TestModal::new);
 9405                    }
 9406                })
 9407            }
 9408        };
 9409
 9410        // If focus is transferred to another view that's not a panel or another pane, we still show
 9411        // the panel as zoomed.
 9412        focus_other_view(cx);
 9413        workspace.read_with(cx, |workspace, _| {
 9414            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9415            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9416        });
 9417
 9418        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 9419        workspace.update_in(cx, |_workspace, window, cx| {
 9420            cx.focus_self(window);
 9421        });
 9422        workspace.read_with(cx, |workspace, _| {
 9423            assert_eq!(workspace.zoomed, None);
 9424            assert_eq!(workspace.zoomed_position, None);
 9425        });
 9426
 9427        // If focus is transferred again to another view that's not a panel or a pane, we won't
 9428        // show the panel as zoomed because it wasn't zoomed before.
 9429        focus_other_view(cx);
 9430        workspace.read_with(cx, |workspace, _| {
 9431            assert_eq!(workspace.zoomed, None);
 9432            assert_eq!(workspace.zoomed_position, None);
 9433        });
 9434
 9435        // When the panel is activated, it is zoomed again.
 9436        cx.dispatch_action(ToggleRightDock);
 9437        workspace.read_with(cx, |workspace, _| {
 9438            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9439            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9440        });
 9441
 9442        // Emitting a ZoomOut event unzooms the panel.
 9443        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
 9444        workspace.read_with(cx, |workspace, _| {
 9445            assert_eq!(workspace.zoomed, None);
 9446            assert_eq!(workspace.zoomed_position, None);
 9447        });
 9448
 9449        // Emit closed event on panel 1, which is active
 9450        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9451
 9452        // Now the left dock is closed, because panel_1 was the active panel
 9453        workspace.update(cx, |workspace, cx| {
 9454            let right_dock = workspace.right_dock();
 9455            assert!(!right_dock.read(cx).is_open());
 9456        });
 9457    }
 9458
 9459    #[gpui::test]
 9460    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
 9461        init_test(cx);
 9462
 9463        let fs = FakeFs::new(cx.background_executor.clone());
 9464        let project = Project::test(fs, [], cx).await;
 9465        let (workspace, cx) =
 9466            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9467        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9468
 9469        let dirty_regular_buffer = cx.new(|cx| {
 9470            TestItem::new(cx)
 9471                .with_dirty(true)
 9472                .with_label("1.txt")
 9473                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9474        });
 9475        let dirty_regular_buffer_2 = cx.new(|cx| {
 9476            TestItem::new(cx)
 9477                .with_dirty(true)
 9478                .with_label("2.txt")
 9479                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9480        });
 9481        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9482            TestItem::new(cx)
 9483                .with_dirty(true)
 9484                .with_singleton(false)
 9485                .with_label("Fake Project Search")
 9486                .with_project_items(&[
 9487                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9488                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9489                ])
 9490        });
 9491        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9492        workspace.update_in(cx, |workspace, window, cx| {
 9493            workspace.add_item(
 9494                pane.clone(),
 9495                Box::new(dirty_regular_buffer.clone()),
 9496                None,
 9497                false,
 9498                false,
 9499                window,
 9500                cx,
 9501            );
 9502            workspace.add_item(
 9503                pane.clone(),
 9504                Box::new(dirty_regular_buffer_2.clone()),
 9505                None,
 9506                false,
 9507                false,
 9508                window,
 9509                cx,
 9510            );
 9511            workspace.add_item(
 9512                pane.clone(),
 9513                Box::new(dirty_multi_buffer_with_both.clone()),
 9514                None,
 9515                false,
 9516                false,
 9517                window,
 9518                cx,
 9519            );
 9520        });
 9521
 9522        pane.update_in(cx, |pane, window, cx| {
 9523            pane.activate_item(2, true, true, window, cx);
 9524            assert_eq!(
 9525                pane.active_item().unwrap().item_id(),
 9526                multi_buffer_with_both_files_id,
 9527                "Should select the multi buffer in the pane"
 9528            );
 9529        });
 9530        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9531            pane.close_other_items(
 9532                &CloseOtherItems {
 9533                    save_intent: Some(SaveIntent::Save),
 9534                    close_pinned: true,
 9535                },
 9536                None,
 9537                window,
 9538                cx,
 9539            )
 9540        });
 9541        cx.background_executor.run_until_parked();
 9542        assert!(!cx.has_pending_prompt());
 9543        close_all_but_multi_buffer_task
 9544            .await
 9545            .expect("Closing all buffers but the multi buffer failed");
 9546        pane.update(cx, |pane, cx| {
 9547            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
 9548            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
 9549            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
 9550            assert_eq!(pane.items_len(), 1);
 9551            assert_eq!(
 9552                pane.active_item().unwrap().item_id(),
 9553                multi_buffer_with_both_files_id,
 9554                "Should have only the multi buffer left in the pane"
 9555            );
 9556            assert!(
 9557                dirty_multi_buffer_with_both.read(cx).is_dirty,
 9558                "The multi buffer containing the unsaved buffer should still be dirty"
 9559            );
 9560        });
 9561
 9562        dirty_regular_buffer.update(cx, |buffer, cx| {
 9563            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
 9564        });
 9565
 9566        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9567            pane.close_active_item(
 9568                &CloseActiveItem {
 9569                    save_intent: Some(SaveIntent::Close),
 9570                    close_pinned: false,
 9571                },
 9572                window,
 9573                cx,
 9574            )
 9575        });
 9576        cx.background_executor.run_until_parked();
 9577        assert!(
 9578            cx.has_pending_prompt(),
 9579            "Dirty multi buffer should prompt a save dialog"
 9580        );
 9581        cx.simulate_prompt_answer("Save");
 9582        cx.background_executor.run_until_parked();
 9583        close_multi_buffer_task
 9584            .await
 9585            .expect("Closing the multi buffer failed");
 9586        pane.update(cx, |pane, cx| {
 9587            assert_eq!(
 9588                dirty_multi_buffer_with_both.read(cx).save_count,
 9589                1,
 9590                "Multi buffer item should get be saved"
 9591            );
 9592            // Test impl does not save inner items, so we do not assert them
 9593            assert_eq!(
 9594                pane.items_len(),
 9595                0,
 9596                "No more items should be left in the pane"
 9597            );
 9598            assert!(pane.active_item().is_none());
 9599        });
 9600    }
 9601
 9602    #[gpui::test]
 9603    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
 9604        cx: &mut TestAppContext,
 9605    ) {
 9606        init_test(cx);
 9607
 9608        let fs = FakeFs::new(cx.background_executor.clone());
 9609        let project = Project::test(fs, [], cx).await;
 9610        let (workspace, cx) =
 9611            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9612        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9613
 9614        let dirty_regular_buffer = cx.new(|cx| {
 9615            TestItem::new(cx)
 9616                .with_dirty(true)
 9617                .with_label("1.txt")
 9618                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9619        });
 9620        let dirty_regular_buffer_2 = cx.new(|cx| {
 9621            TestItem::new(cx)
 9622                .with_dirty(true)
 9623                .with_label("2.txt")
 9624                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9625        });
 9626        let clear_regular_buffer = cx.new(|cx| {
 9627            TestItem::new(cx)
 9628                .with_label("3.txt")
 9629                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9630        });
 9631
 9632        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9633            TestItem::new(cx)
 9634                .with_dirty(true)
 9635                .with_singleton(false)
 9636                .with_label("Fake Project Search")
 9637                .with_project_items(&[
 9638                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9639                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9640                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9641                ])
 9642        });
 9643        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9644        workspace.update_in(cx, |workspace, window, cx| {
 9645            workspace.add_item(
 9646                pane.clone(),
 9647                Box::new(dirty_regular_buffer.clone()),
 9648                None,
 9649                false,
 9650                false,
 9651                window,
 9652                cx,
 9653            );
 9654            workspace.add_item(
 9655                pane.clone(),
 9656                Box::new(dirty_multi_buffer_with_both.clone()),
 9657                None,
 9658                false,
 9659                false,
 9660                window,
 9661                cx,
 9662            );
 9663        });
 9664
 9665        pane.update_in(cx, |pane, window, cx| {
 9666            pane.activate_item(1, true, true, window, cx);
 9667            assert_eq!(
 9668                pane.active_item().unwrap().item_id(),
 9669                multi_buffer_with_both_files_id,
 9670                "Should select the multi buffer in the pane"
 9671            );
 9672        });
 9673        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9674            pane.close_active_item(
 9675                &CloseActiveItem {
 9676                    save_intent: None,
 9677                    close_pinned: false,
 9678                },
 9679                window,
 9680                cx,
 9681            )
 9682        });
 9683        cx.background_executor.run_until_parked();
 9684        assert!(
 9685            cx.has_pending_prompt(),
 9686            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
 9687        );
 9688    }
 9689
 9690    /// Tests that when `close_on_file_delete` is enabled, files are automatically
 9691    /// closed when they are deleted from disk.
 9692    #[gpui::test]
 9693    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
 9694        init_test(cx);
 9695
 9696        // Enable the close_on_disk_deletion setting
 9697        cx.update_global(|store: &mut SettingsStore, cx| {
 9698            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9699                settings.close_on_file_delete = Some(true);
 9700            });
 9701        });
 9702
 9703        let fs = FakeFs::new(cx.background_executor.clone());
 9704        let project = Project::test(fs, [], cx).await;
 9705        let (workspace, cx) =
 9706            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9707        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9708
 9709        // Create a test item that simulates a file
 9710        let item = cx.new(|cx| {
 9711            TestItem::new(cx)
 9712                .with_label("test.txt")
 9713                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9714        });
 9715
 9716        // Add item to workspace
 9717        workspace.update_in(cx, |workspace, window, cx| {
 9718            workspace.add_item(
 9719                pane.clone(),
 9720                Box::new(item.clone()),
 9721                None,
 9722                false,
 9723                false,
 9724                window,
 9725                cx,
 9726            );
 9727        });
 9728
 9729        // Verify the item is in the pane
 9730        pane.read_with(cx, |pane, _| {
 9731            assert_eq!(pane.items().count(), 1);
 9732        });
 9733
 9734        // Simulate file deletion by setting the item's deleted state
 9735        item.update(cx, |item, _| {
 9736            item.set_has_deleted_file(true);
 9737        });
 9738
 9739        // Emit UpdateTab event to trigger the close behavior
 9740        cx.run_until_parked();
 9741        item.update(cx, |_, cx| {
 9742            cx.emit(ItemEvent::UpdateTab);
 9743        });
 9744
 9745        // Allow the close operation to complete
 9746        cx.run_until_parked();
 9747
 9748        // Verify the item was automatically closed
 9749        pane.read_with(cx, |pane, _| {
 9750            assert_eq!(
 9751                pane.items().count(),
 9752                0,
 9753                "Item should be automatically closed when file is deleted"
 9754            );
 9755        });
 9756    }
 9757
 9758    /// Tests that when `close_on_file_delete` is disabled (default), files remain
 9759    /// open with a strikethrough when they are deleted from disk.
 9760    #[gpui::test]
 9761    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
 9762        init_test(cx);
 9763
 9764        // Ensure close_on_disk_deletion is disabled (default)
 9765        cx.update_global(|store: &mut SettingsStore, cx| {
 9766            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9767                settings.close_on_file_delete = Some(false);
 9768            });
 9769        });
 9770
 9771        let fs = FakeFs::new(cx.background_executor.clone());
 9772        let project = Project::test(fs, [], cx).await;
 9773        let (workspace, cx) =
 9774            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9775        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9776
 9777        // Create a test item that simulates a file
 9778        let item = cx.new(|cx| {
 9779            TestItem::new(cx)
 9780                .with_label("test.txt")
 9781                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9782        });
 9783
 9784        // Add item to workspace
 9785        workspace.update_in(cx, |workspace, window, cx| {
 9786            workspace.add_item(
 9787                pane.clone(),
 9788                Box::new(item.clone()),
 9789                None,
 9790                false,
 9791                false,
 9792                window,
 9793                cx,
 9794            );
 9795        });
 9796
 9797        // Verify the item is in the pane
 9798        pane.read_with(cx, |pane, _| {
 9799            assert_eq!(pane.items().count(), 1);
 9800        });
 9801
 9802        // Simulate file deletion
 9803        item.update(cx, |item, _| {
 9804            item.set_has_deleted_file(true);
 9805        });
 9806
 9807        // Emit UpdateTab event
 9808        cx.run_until_parked();
 9809        item.update(cx, |_, cx| {
 9810            cx.emit(ItemEvent::UpdateTab);
 9811        });
 9812
 9813        // Allow any potential close operation to complete
 9814        cx.run_until_parked();
 9815
 9816        // Verify the item remains open (with strikethrough)
 9817        pane.read_with(cx, |pane, _| {
 9818            assert_eq!(
 9819                pane.items().count(),
 9820                1,
 9821                "Item should remain open when close_on_disk_deletion is disabled"
 9822            );
 9823        });
 9824
 9825        // Verify the item shows as deleted
 9826        item.read_with(cx, |item, _| {
 9827            assert!(
 9828                item.has_deleted_file,
 9829                "Item should be marked as having deleted file"
 9830            );
 9831        });
 9832    }
 9833
 9834    /// Tests that dirty files are not automatically closed when deleted from disk,
 9835    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
 9836    /// unsaved changes without being prompted.
 9837    #[gpui::test]
 9838    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
 9839        init_test(cx);
 9840
 9841        // Enable the close_on_file_delete setting
 9842        cx.update_global(|store: &mut SettingsStore, cx| {
 9843            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9844                settings.close_on_file_delete = Some(true);
 9845            });
 9846        });
 9847
 9848        let fs = FakeFs::new(cx.background_executor.clone());
 9849        let project = Project::test(fs, [], cx).await;
 9850        let (workspace, cx) =
 9851            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9852        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9853
 9854        // Create a dirty test item
 9855        let item = cx.new(|cx| {
 9856            TestItem::new(cx)
 9857                .with_dirty(true)
 9858                .with_label("test.txt")
 9859                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9860        });
 9861
 9862        // Add item to workspace
 9863        workspace.update_in(cx, |workspace, window, cx| {
 9864            workspace.add_item(
 9865                pane.clone(),
 9866                Box::new(item.clone()),
 9867                None,
 9868                false,
 9869                false,
 9870                window,
 9871                cx,
 9872            );
 9873        });
 9874
 9875        // Simulate file deletion
 9876        item.update(cx, |item, _| {
 9877            item.set_has_deleted_file(true);
 9878        });
 9879
 9880        // Emit UpdateTab event to trigger the close behavior
 9881        cx.run_until_parked();
 9882        item.update(cx, |_, cx| {
 9883            cx.emit(ItemEvent::UpdateTab);
 9884        });
 9885
 9886        // Allow any potential close operation to complete
 9887        cx.run_until_parked();
 9888
 9889        // Verify the item remains open (dirty files are not auto-closed)
 9890        pane.read_with(cx, |pane, _| {
 9891            assert_eq!(
 9892                pane.items().count(),
 9893                1,
 9894                "Dirty items should not be automatically closed even when file is deleted"
 9895            );
 9896        });
 9897
 9898        // Verify the item is marked as deleted and still dirty
 9899        item.read_with(cx, |item, _| {
 9900            assert!(
 9901                item.has_deleted_file,
 9902                "Item should be marked as having deleted file"
 9903            );
 9904            assert!(item.is_dirty, "Item should still be dirty");
 9905        });
 9906    }
 9907
 9908    /// Tests that navigation history is cleaned up when files are auto-closed
 9909    /// due to deletion from disk.
 9910    #[gpui::test]
 9911    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
 9912        init_test(cx);
 9913
 9914        // Enable the close_on_file_delete setting
 9915        cx.update_global(|store: &mut SettingsStore, cx| {
 9916            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9917                settings.close_on_file_delete = Some(true);
 9918            });
 9919        });
 9920
 9921        let fs = FakeFs::new(cx.background_executor.clone());
 9922        let project = Project::test(fs, [], cx).await;
 9923        let (workspace, cx) =
 9924            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9925        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9926
 9927        // Create test items
 9928        let item1 = cx.new(|cx| {
 9929            TestItem::new(cx)
 9930                .with_label("test1.txt")
 9931                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
 9932        });
 9933        let item1_id = item1.item_id();
 9934
 9935        let item2 = cx.new(|cx| {
 9936            TestItem::new(cx)
 9937                .with_label("test2.txt")
 9938                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
 9939        });
 9940
 9941        // Add items to workspace
 9942        workspace.update_in(cx, |workspace, window, cx| {
 9943            workspace.add_item(
 9944                pane.clone(),
 9945                Box::new(item1.clone()),
 9946                None,
 9947                false,
 9948                false,
 9949                window,
 9950                cx,
 9951            );
 9952            workspace.add_item(
 9953                pane.clone(),
 9954                Box::new(item2.clone()),
 9955                None,
 9956                false,
 9957                false,
 9958                window,
 9959                cx,
 9960            );
 9961        });
 9962
 9963        // Activate item1 to ensure it gets navigation entries
 9964        pane.update_in(cx, |pane, window, cx| {
 9965            pane.activate_item(0, true, true, window, cx);
 9966        });
 9967
 9968        // Switch to item2 and back to create navigation history
 9969        pane.update_in(cx, |pane, window, cx| {
 9970            pane.activate_item(1, true, true, window, cx);
 9971        });
 9972        cx.run_until_parked();
 9973
 9974        pane.update_in(cx, |pane, window, cx| {
 9975            pane.activate_item(0, true, true, window, cx);
 9976        });
 9977        cx.run_until_parked();
 9978
 9979        // Simulate file deletion for item1
 9980        item1.update(cx, |item, _| {
 9981            item.set_has_deleted_file(true);
 9982        });
 9983
 9984        // Emit UpdateTab event to trigger the close behavior
 9985        item1.update(cx, |_, cx| {
 9986            cx.emit(ItemEvent::UpdateTab);
 9987        });
 9988        cx.run_until_parked();
 9989
 9990        // Verify item1 was closed
 9991        pane.read_with(cx, |pane, _| {
 9992            assert_eq!(
 9993                pane.items().count(),
 9994                1,
 9995                "Should have 1 item remaining after auto-close"
 9996            );
 9997        });
 9998
 9999        // Check navigation history after close
10000        let has_item = pane.read_with(cx, |pane, cx| {
10001            let mut has_item = false;
10002            pane.nav_history().for_each_entry(cx, |entry, _| {
10003                if entry.item.id() == item1_id {
10004                    has_item = true;
10005                }
10006            });
10007            has_item
10008        });
10009
10010        assert!(
10011            !has_item,
10012            "Navigation history should not contain closed item entries"
10013        );
10014    }
10015
10016    #[gpui::test]
10017    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10018        cx: &mut TestAppContext,
10019    ) {
10020        init_test(cx);
10021
10022        let fs = FakeFs::new(cx.background_executor.clone());
10023        let project = Project::test(fs, [], cx).await;
10024        let (workspace, cx) =
10025            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10026        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10027
10028        let dirty_regular_buffer = cx.new(|cx| {
10029            TestItem::new(cx)
10030                .with_dirty(true)
10031                .with_label("1.txt")
10032                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10033        });
10034        let dirty_regular_buffer_2 = cx.new(|cx| {
10035            TestItem::new(cx)
10036                .with_dirty(true)
10037                .with_label("2.txt")
10038                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10039        });
10040        let clear_regular_buffer = cx.new(|cx| {
10041            TestItem::new(cx)
10042                .with_label("3.txt")
10043                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10044        });
10045
10046        let dirty_multi_buffer = cx.new(|cx| {
10047            TestItem::new(cx)
10048                .with_dirty(true)
10049                .with_singleton(false)
10050                .with_label("Fake Project Search")
10051                .with_project_items(&[
10052                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10053                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10054                    clear_regular_buffer.read(cx).project_items[0].clone(),
10055                ])
10056        });
10057        workspace.update_in(cx, |workspace, window, cx| {
10058            workspace.add_item(
10059                pane.clone(),
10060                Box::new(dirty_regular_buffer.clone()),
10061                None,
10062                false,
10063                false,
10064                window,
10065                cx,
10066            );
10067            workspace.add_item(
10068                pane.clone(),
10069                Box::new(dirty_regular_buffer_2.clone()),
10070                None,
10071                false,
10072                false,
10073                window,
10074                cx,
10075            );
10076            workspace.add_item(
10077                pane.clone(),
10078                Box::new(dirty_multi_buffer.clone()),
10079                None,
10080                false,
10081                false,
10082                window,
10083                cx,
10084            );
10085        });
10086
10087        pane.update_in(cx, |pane, window, cx| {
10088            pane.activate_item(2, true, true, window, cx);
10089            assert_eq!(
10090                pane.active_item().unwrap().item_id(),
10091                dirty_multi_buffer.item_id(),
10092                "Should select the multi buffer in the pane"
10093            );
10094        });
10095        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10096            pane.close_active_item(
10097                &CloseActiveItem {
10098                    save_intent: None,
10099                    close_pinned: false,
10100                },
10101                window,
10102                cx,
10103            )
10104        });
10105        cx.background_executor.run_until_parked();
10106        assert!(
10107            !cx.has_pending_prompt(),
10108            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10109        );
10110        close_multi_buffer_task
10111            .await
10112            .expect("Closing multi buffer failed");
10113        pane.update(cx, |pane, cx| {
10114            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10115            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10116            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10117            assert_eq!(
10118                pane.items()
10119                    .map(|item| item.item_id())
10120                    .sorted()
10121                    .collect::<Vec<_>>(),
10122                vec![
10123                    dirty_regular_buffer.item_id(),
10124                    dirty_regular_buffer_2.item_id(),
10125                ],
10126                "Should have no multi buffer left in the pane"
10127            );
10128            assert!(dirty_regular_buffer.read(cx).is_dirty);
10129            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10130        });
10131    }
10132
10133    #[gpui::test]
10134    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10135        init_test(cx);
10136        let fs = FakeFs::new(cx.executor());
10137        let project = Project::test(fs, [], cx).await;
10138        let (workspace, cx) =
10139            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10140
10141        // Add a new panel to the right dock, opening the dock and setting the
10142        // focus to the new panel.
10143        let panel = workspace.update_in(cx, |workspace, window, cx| {
10144            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10145            workspace.add_panel(panel.clone(), window, cx);
10146
10147            workspace
10148                .right_dock()
10149                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10150
10151            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10152
10153            panel
10154        });
10155
10156        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10157        // panel to the next valid position which, in this case, is the left
10158        // dock.
10159        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10160        workspace.update(cx, |workspace, cx| {
10161            assert!(workspace.left_dock().read(cx).is_open());
10162            assert_eq!(panel.read(cx).position, DockPosition::Left);
10163        });
10164
10165        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10166        // panel to the next valid position which, in this case, is the bottom
10167        // dock.
10168        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10169        workspace.update(cx, |workspace, cx| {
10170            assert!(workspace.bottom_dock().read(cx).is_open());
10171            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10172        });
10173
10174        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10175        // around moving the panel to its initial position, the right dock.
10176        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10177        workspace.update(cx, |workspace, cx| {
10178            assert!(workspace.right_dock().read(cx).is_open());
10179            assert_eq!(panel.read(cx).position, DockPosition::Right);
10180        });
10181
10182        // Remove focus from the panel, ensuring that, if the panel is not
10183        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10184        // the panel's position, so the panel is still in the right dock.
10185        workspace.update_in(cx, |workspace, window, cx| {
10186            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10187        });
10188
10189        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10190        workspace.update(cx, |workspace, cx| {
10191            assert!(workspace.right_dock().read(cx).is_open());
10192            assert_eq!(panel.read(cx).position, DockPosition::Right);
10193        });
10194    }
10195
10196    #[gpui::test]
10197    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10198        init_test(cx);
10199
10200        let fs = FakeFs::new(cx.executor());
10201        let project = Project::test(fs, [], cx).await;
10202        let (workspace, cx) =
10203            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10204
10205        let item_1 = cx.new(|cx| {
10206            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10207        });
10208        workspace.update_in(cx, |workspace, window, cx| {
10209            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10210            workspace.move_item_to_pane_in_direction(
10211                &MoveItemToPaneInDirection {
10212                    direction: SplitDirection::Right,
10213                    focus: true,
10214                    clone: false,
10215                },
10216                window,
10217                cx,
10218            );
10219            workspace.move_item_to_pane_at_index(
10220                &MoveItemToPane {
10221                    destination: 3,
10222                    focus: true,
10223                    clone: false,
10224                },
10225                window,
10226                cx,
10227            );
10228
10229            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10230            assert_eq!(
10231                pane_items_paths(&workspace.active_pane, cx),
10232                vec!["first.txt".to_string()],
10233                "Single item was not moved anywhere"
10234            );
10235        });
10236
10237        let item_2 = cx.new(|cx| {
10238            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10239        });
10240        workspace.update_in(cx, |workspace, window, cx| {
10241            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10242            assert_eq!(
10243                pane_items_paths(&workspace.panes[0], cx),
10244                vec!["first.txt".to_string(), "second.txt".to_string()],
10245            );
10246            workspace.move_item_to_pane_in_direction(
10247                &MoveItemToPaneInDirection {
10248                    direction: SplitDirection::Right,
10249                    focus: true,
10250                    clone: false,
10251                },
10252                window,
10253                cx,
10254            );
10255
10256            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10257            assert_eq!(
10258                pane_items_paths(&workspace.panes[0], cx),
10259                vec!["first.txt".to_string()],
10260                "After moving, one item should be left in the original pane"
10261            );
10262            assert_eq!(
10263                pane_items_paths(&workspace.panes[1], cx),
10264                vec!["second.txt".to_string()],
10265                "New item should have been moved to the new pane"
10266            );
10267        });
10268
10269        let item_3 = cx.new(|cx| {
10270            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10271        });
10272        workspace.update_in(cx, |workspace, window, cx| {
10273            let original_pane = workspace.panes[0].clone();
10274            workspace.set_active_pane(&original_pane, window, cx);
10275            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10276            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10277            assert_eq!(
10278                pane_items_paths(&workspace.active_pane, cx),
10279                vec!["first.txt".to_string(), "third.txt".to_string()],
10280                "New pane should be ready to move one item out"
10281            );
10282
10283            workspace.move_item_to_pane_at_index(
10284                &MoveItemToPane {
10285                    destination: 3,
10286                    focus: true,
10287                    clone: false,
10288                },
10289                window,
10290                cx,
10291            );
10292            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10293            assert_eq!(
10294                pane_items_paths(&workspace.active_pane, cx),
10295                vec!["first.txt".to_string()],
10296                "After moving, one item should be left in the original pane"
10297            );
10298            assert_eq!(
10299                pane_items_paths(&workspace.panes[1], cx),
10300                vec!["second.txt".to_string()],
10301                "Previously created pane should be unchanged"
10302            );
10303            assert_eq!(
10304                pane_items_paths(&workspace.panes[2], cx),
10305                vec!["third.txt".to_string()],
10306                "New item should have been moved to the new pane"
10307            );
10308        });
10309    }
10310
10311    #[gpui::test]
10312    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10313        init_test(cx);
10314
10315        let fs = FakeFs::new(cx.executor());
10316        let project = Project::test(fs, [], cx).await;
10317        let (workspace, cx) =
10318            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10319
10320        let item_1 = cx.new(|cx| {
10321            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10322        });
10323        workspace.update_in(cx, |workspace, window, cx| {
10324            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10325            workspace.move_item_to_pane_in_direction(
10326                &MoveItemToPaneInDirection {
10327                    direction: SplitDirection::Right,
10328                    focus: true,
10329                    clone: true,
10330                },
10331                window,
10332                cx,
10333            );
10334            workspace.move_item_to_pane_at_index(
10335                &MoveItemToPane {
10336                    destination: 3,
10337                    focus: true,
10338                    clone: true,
10339                },
10340                window,
10341                cx,
10342            );
10343
10344            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10345            for pane in workspace.panes() {
10346                assert_eq!(
10347                    pane_items_paths(pane, cx),
10348                    vec!["first.txt".to_string()],
10349                    "Single item exists in all panes"
10350                );
10351            }
10352        });
10353
10354        // verify that the active pane has been updated after waiting for the
10355        // pane focus event to fire and resolve
10356        workspace.read_with(cx, |workspace, _app| {
10357            assert_eq!(
10358                workspace.active_pane(),
10359                &workspace.panes[2],
10360                "The third pane should be the active one: {:?}",
10361                workspace.panes
10362            );
10363        })
10364    }
10365
10366    mod register_project_item_tests {
10367
10368        use super::*;
10369
10370        // View
10371        struct TestPngItemView {
10372            focus_handle: FocusHandle,
10373        }
10374        // Model
10375        struct TestPngItem {}
10376
10377        impl project::ProjectItem for TestPngItem {
10378            fn try_open(
10379                _project: &Entity<Project>,
10380                path: &ProjectPath,
10381                cx: &mut App,
10382            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10383                if path.path.extension().unwrap() == "png" {
10384                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10385                } else {
10386                    None
10387                }
10388            }
10389
10390            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10391                None
10392            }
10393
10394            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10395                None
10396            }
10397
10398            fn is_dirty(&self) -> bool {
10399                false
10400            }
10401        }
10402
10403        impl Item for TestPngItemView {
10404            type Event = ();
10405            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10406                "".into()
10407            }
10408        }
10409        impl EventEmitter<()> for TestPngItemView {}
10410        impl Focusable for TestPngItemView {
10411            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10412                self.focus_handle.clone()
10413            }
10414        }
10415
10416        impl Render for TestPngItemView {
10417            fn render(
10418                &mut self,
10419                _window: &mut Window,
10420                _cx: &mut Context<Self>,
10421            ) -> impl IntoElement {
10422                Empty
10423            }
10424        }
10425
10426        impl ProjectItem for TestPngItemView {
10427            type Item = TestPngItem;
10428
10429            fn for_project_item(
10430                _project: Entity<Project>,
10431                _pane: Option<&Pane>,
10432                _item: Entity<Self::Item>,
10433                _: &mut Window,
10434                cx: &mut Context<Self>,
10435            ) -> Self
10436            where
10437                Self: Sized,
10438            {
10439                Self {
10440                    focus_handle: cx.focus_handle(),
10441                }
10442            }
10443        }
10444
10445        // View
10446        struct TestIpynbItemView {
10447            focus_handle: FocusHandle,
10448        }
10449        // Model
10450        struct TestIpynbItem {}
10451
10452        impl project::ProjectItem for TestIpynbItem {
10453            fn try_open(
10454                _project: &Entity<Project>,
10455                path: &ProjectPath,
10456                cx: &mut App,
10457            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10458                if path.path.extension().unwrap() == "ipynb" {
10459                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
10460                } else {
10461                    None
10462                }
10463            }
10464
10465            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10466                None
10467            }
10468
10469            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10470                None
10471            }
10472
10473            fn is_dirty(&self) -> bool {
10474                false
10475            }
10476        }
10477
10478        impl Item for TestIpynbItemView {
10479            type Event = ();
10480            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10481                "".into()
10482            }
10483        }
10484        impl EventEmitter<()> for TestIpynbItemView {}
10485        impl Focusable for TestIpynbItemView {
10486            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10487                self.focus_handle.clone()
10488            }
10489        }
10490
10491        impl Render for TestIpynbItemView {
10492            fn render(
10493                &mut self,
10494                _window: &mut Window,
10495                _cx: &mut Context<Self>,
10496            ) -> impl IntoElement {
10497                Empty
10498            }
10499        }
10500
10501        impl ProjectItem for TestIpynbItemView {
10502            type Item = TestIpynbItem;
10503
10504            fn for_project_item(
10505                _project: Entity<Project>,
10506                _pane: Option<&Pane>,
10507                _item: Entity<Self::Item>,
10508                _: &mut Window,
10509                cx: &mut Context<Self>,
10510            ) -> Self
10511            where
10512                Self: Sized,
10513            {
10514                Self {
10515                    focus_handle: cx.focus_handle(),
10516                }
10517            }
10518        }
10519
10520        struct TestAlternatePngItemView {
10521            focus_handle: FocusHandle,
10522        }
10523
10524        impl Item for TestAlternatePngItemView {
10525            type Event = ();
10526            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10527                "".into()
10528            }
10529        }
10530
10531        impl EventEmitter<()> for TestAlternatePngItemView {}
10532        impl Focusable for TestAlternatePngItemView {
10533            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10534                self.focus_handle.clone()
10535            }
10536        }
10537
10538        impl Render for TestAlternatePngItemView {
10539            fn render(
10540                &mut self,
10541                _window: &mut Window,
10542                _cx: &mut Context<Self>,
10543            ) -> impl IntoElement {
10544                Empty
10545            }
10546        }
10547
10548        impl ProjectItem for TestAlternatePngItemView {
10549            type Item = TestPngItem;
10550
10551            fn for_project_item(
10552                _project: Entity<Project>,
10553                _pane: Option<&Pane>,
10554                _item: Entity<Self::Item>,
10555                _: &mut Window,
10556                cx: &mut Context<Self>,
10557            ) -> Self
10558            where
10559                Self: Sized,
10560            {
10561                Self {
10562                    focus_handle: cx.focus_handle(),
10563                }
10564            }
10565        }
10566
10567        #[gpui::test]
10568        async fn test_register_project_item(cx: &mut TestAppContext) {
10569            init_test(cx);
10570
10571            cx.update(|cx| {
10572                register_project_item::<TestPngItemView>(cx);
10573                register_project_item::<TestIpynbItemView>(cx);
10574            });
10575
10576            let fs = FakeFs::new(cx.executor());
10577            fs.insert_tree(
10578                "/root1",
10579                json!({
10580                    "one.png": "BINARYDATAHERE",
10581                    "two.ipynb": "{ totally a notebook }",
10582                    "three.txt": "editing text, sure why not?"
10583                }),
10584            )
10585            .await;
10586
10587            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10588            let (workspace, cx) =
10589                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10590
10591            let worktree_id = project.update(cx, |project, cx| {
10592                project.worktrees(cx).next().unwrap().read(cx).id()
10593            });
10594
10595            let handle = workspace
10596                .update_in(cx, |workspace, window, cx| {
10597                    let project_path = (worktree_id, "one.png");
10598                    workspace.open_path(project_path, None, true, window, cx)
10599                })
10600                .await
10601                .unwrap();
10602
10603            // Now we can check if the handle we got back errored or not
10604            assert_eq!(
10605                handle.to_any().entity_type(),
10606                TypeId::of::<TestPngItemView>()
10607            );
10608
10609            let handle = workspace
10610                .update_in(cx, |workspace, window, cx| {
10611                    let project_path = (worktree_id, "two.ipynb");
10612                    workspace.open_path(project_path, None, true, window, cx)
10613                })
10614                .await
10615                .unwrap();
10616
10617            assert_eq!(
10618                handle.to_any().entity_type(),
10619                TypeId::of::<TestIpynbItemView>()
10620            );
10621
10622            let handle = workspace
10623                .update_in(cx, |workspace, window, cx| {
10624                    let project_path = (worktree_id, "three.txt");
10625                    workspace.open_path(project_path, None, true, window, cx)
10626                })
10627                .await;
10628            assert!(handle.is_err());
10629        }
10630
10631        #[gpui::test]
10632        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
10633            init_test(cx);
10634
10635            cx.update(|cx| {
10636                register_project_item::<TestPngItemView>(cx);
10637                register_project_item::<TestAlternatePngItemView>(cx);
10638            });
10639
10640            let fs = FakeFs::new(cx.executor());
10641            fs.insert_tree(
10642                "/root1",
10643                json!({
10644                    "one.png": "BINARYDATAHERE",
10645                    "two.ipynb": "{ totally a notebook }",
10646                    "three.txt": "editing text, sure why not?"
10647                }),
10648            )
10649            .await;
10650            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10651            let (workspace, cx) =
10652                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10653            let worktree_id = project.update(cx, |project, cx| {
10654                project.worktrees(cx).next().unwrap().read(cx).id()
10655            });
10656
10657            let handle = workspace
10658                .update_in(cx, |workspace, window, cx| {
10659                    let project_path = (worktree_id, "one.png");
10660                    workspace.open_path(project_path, None, true, window, cx)
10661                })
10662                .await
10663                .unwrap();
10664
10665            // This _must_ be the second item registered
10666            assert_eq!(
10667                handle.to_any().entity_type(),
10668                TypeId::of::<TestAlternatePngItemView>()
10669            );
10670
10671            let handle = workspace
10672                .update_in(cx, |workspace, window, cx| {
10673                    let project_path = (worktree_id, "three.txt");
10674                    workspace.open_path(project_path, None, true, window, cx)
10675                })
10676                .await;
10677            assert!(handle.is_err());
10678        }
10679    }
10680
10681    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
10682        pane.read(cx)
10683            .items()
10684            .flat_map(|item| {
10685                item.project_paths(cx)
10686                    .into_iter()
10687                    .map(|path| path.path.to_string_lossy().to_string())
10688            })
10689            .collect()
10690    }
10691
10692    pub fn init_test(cx: &mut TestAppContext) {
10693        cx.update(|cx| {
10694            let settings_store = SettingsStore::test(cx);
10695            cx.set_global(settings_store);
10696            theme::init(theme::LoadThemes::JustBase, cx);
10697            language::init(cx);
10698            crate::init_settings(cx);
10699            Project::init_settings(cx);
10700        });
10701    }
10702
10703    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
10704        let item = TestProjectItem::new(id, path, cx);
10705        item.update(cx, |item, _| {
10706            item.is_dirty = true;
10707        });
10708        item
10709    }
10710}