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 toast_layer::{ToastAction, ToastLayer, ToastView};
   19
   20use anyhow::{Context as _, Result, anyhow};
   21use call::{ActiveCall, call_settings::CallSettings};
   22use client::{
   23    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   24    proto::{self, ErrorCode, PanelId, PeerId},
   25};
   26use collections::{HashMap, HashSet, hash_map};
   27pub use dock::Panel;
   28use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   29use futures::{
   30    Future, FutureExt, StreamExt,
   31    channel::{
   32        mpsc::{self, UnboundedReceiver, UnboundedSender},
   33        oneshot,
   34    },
   35    future::try_join_all,
   36};
   37use gpui::{
   38    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   39    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   40    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   41    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription, Task,
   42    Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId, WindowOptions, actions, canvas,
   43    point, relative, size, transparent_black,
   44};
   45pub use history_manager::*;
   46pub use item::{
   47    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   48    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   49};
   50use itertools::Itertools;
   51use language::{Buffer, LanguageRegistry, Rope};
   52pub use modal_layer::*;
   53use node_runtime::NodeRuntime;
   54use notifications::{
   55    DetachAndPromptErr, Notifications, dismiss_app_notification,
   56    simple_message_notification::MessageNotification,
   57};
   58pub use pane::*;
   59pub use pane_group::*;
   60use persistence::{
   61    DB, SerializedWindowBounds,
   62    model::{SerializedSshProject, SerializedWorkspace},
   63};
   64pub use persistence::{
   65    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   66    model::{ItemId, LocalPaths, SerializedWorkspaceLocation},
   67};
   68use postage::stream::Stream;
   69use project::{
   70    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   71    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   72};
   73use remote::{SshClientDelegate, SshConnectionOptions, ssh_session::ConnectionIdentifier};
   74use schemars::JsonSchema;
   75use serde::Deserialize;
   76use session::AppSession;
   77use settings::Settings;
   78use shared_screen::SharedScreen;
   79use sqlez::{
   80    bindable::{Bind, Column, StaticColumnCount},
   81    statement::Statement,
   82};
   83use status_bar::StatusBar;
   84pub use status_bar::StatusItemView;
   85use std::{
   86    any::TypeId,
   87    borrow::Cow,
   88    cell::RefCell,
   89    cmp,
   90    collections::hash_map::DefaultHasher,
   91    env,
   92    hash::{Hash, Hasher},
   93    path::{Path, PathBuf},
   94    process::ExitStatus,
   95    rc::Rc,
   96    sync::{Arc, LazyLock, Weak, atomic::AtomicUsize},
   97    time::Duration,
   98};
   99use task::{DebugScenario, SpawnInTerminal, TaskContext};
  100use theme::{ActiveTheme, SystemAppearance, ThemeSettings};
  101pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  102pub use ui;
  103use ui::{Window, prelude::*};
  104use util::{ResultExt, TryFutureExt, paths::SanitizedPath, serde::default_true};
  105use uuid::Uuid;
  106pub use workspace_settings::{
  107    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, TabBarSettings, WorkspaceSettings,
  108};
  109use zed_actions::{Spawn, feedback::FileBugReport};
  110
  111use crate::notifications::NotificationId;
  112use crate::persistence::{
  113    SerializedAxis,
  114    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  115};
  116
  117pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  118
  119static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  120    env::var("ZED_WINDOW_SIZE")
  121        .ok()
  122        .as_deref()
  123        .and_then(parse_pixel_size_env_var)
  124});
  125
  126static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  127    env::var("ZED_WINDOW_POSITION")
  128        .ok()
  129        .as_deref()
  130        .and_then(parse_pixel_position_env_var)
  131});
  132
  133pub trait TerminalProvider {
  134    fn spawn(
  135        &self,
  136        task: SpawnInTerminal,
  137        window: &mut Window,
  138        cx: &mut App,
  139    ) -> Task<Option<Result<ExitStatus>>>;
  140}
  141
  142pub trait DebuggerProvider {
  143    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  144    fn start_session(
  145        &self,
  146        definition: DebugScenario,
  147        task_context: TaskContext,
  148        active_buffer: Option<Entity<Buffer>>,
  149        worktree_id: Option<WorktreeId>,
  150        window: &mut Window,
  151        cx: &mut App,
  152    );
  153
  154    fn spawn_task_or_modal(
  155        &self,
  156        workspace: &mut Workspace,
  157        action: &Spawn,
  158        window: &mut Window,
  159        cx: &mut Context<Workspace>,
  160    );
  161
  162    fn task_scheduled(&self, cx: &mut App);
  163    fn debug_scenario_scheduled(&self, cx: &mut App);
  164    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  165
  166    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  167}
  168
  169actions!(
  170    workspace,
  171    [
  172        /// Activates the next pane in the workspace.
  173        ActivateNextPane,
  174        /// Activates the previous pane in the workspace.
  175        ActivatePreviousPane,
  176        /// Switches to the next window.
  177        ActivateNextWindow,
  178        /// Switches to the previous window.
  179        ActivatePreviousWindow,
  180        /// Adds a folder to the current project.
  181        AddFolderToProject,
  182        /// Clears all notifications.
  183        ClearAllNotifications,
  184        /// Closes the active dock.
  185        CloseActiveDock,
  186        /// Closes all docks.
  187        CloseAllDocks,
  188        /// Closes the current window.
  189        CloseWindow,
  190        /// Opens the feedback dialog.
  191        Feedback,
  192        /// Follows the next collaborator in the session.
  193        FollowNextCollaborator,
  194        /// Moves the focused panel to the next position.
  195        MoveFocusedPanelToNextPosition,
  196        /// Opens a new terminal in the center.
  197        NewCenterTerminal,
  198        /// Creates a new file.
  199        NewFile,
  200        /// Creates a new file in a vertical split.
  201        NewFileSplitVertical,
  202        /// Creates a new file in a horizontal split.
  203        NewFileSplitHorizontal,
  204        /// Opens a new search.
  205        NewSearch,
  206        /// Opens a new terminal.
  207        NewTerminal,
  208        /// Opens a new window.
  209        NewWindow,
  210        /// Opens a file or directory.
  211        Open,
  212        /// Opens multiple files.
  213        OpenFiles,
  214        /// Opens the current location in terminal.
  215        OpenInTerminal,
  216        /// Opens the component preview.
  217        OpenComponentPreview,
  218        /// Reloads the active item.
  219        ReloadActiveItem,
  220        /// Resets the active dock to its default size.
  221        ResetActiveDockSize,
  222        /// Resets all open docks to their default sizes.
  223        ResetOpenDocksSize,
  224        /// Saves the current file with a new name.
  225        SaveAs,
  226        /// Saves without formatting.
  227        SaveWithoutFormat,
  228        /// Shuts down all debug adapters.
  229        ShutdownDebugAdapters,
  230        /// Suppresses the current notification.
  231        SuppressNotification,
  232        /// Toggles the bottom dock.
  233        ToggleBottomDock,
  234        /// Toggles centered layout mode.
  235        ToggleCenteredLayout,
  236        /// Toggles the left dock.
  237        ToggleLeftDock,
  238        /// Toggles the right dock.
  239        ToggleRightDock,
  240        /// Toggles zoom on the active pane.
  241        ToggleZoom,
  242        /// Stops following a collaborator.
  243        Unfollow,
  244        /// Shows the welcome screen.
  245        Welcome,
  246        /// Restores the banner.
  247        RestoreBanner,
  248        /// Toggles expansion of the selected item.
  249        ToggleExpandItem,
  250    ]
  251);
  252
  253#[derive(Clone, PartialEq)]
  254pub struct OpenPaths {
  255    pub paths: Vec<PathBuf>,
  256}
  257
  258/// Activates a specific pane by its index.
  259#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  260#[action(namespace = workspace)]
  261pub struct ActivatePane(pub usize);
  262
  263/// Moves an item to a specific pane by index.
  264#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  265#[action(namespace = workspace)]
  266#[serde(deny_unknown_fields)]
  267pub struct MoveItemToPane {
  268    #[serde(default = "default_1")]
  269    pub destination: usize,
  270    #[serde(default = "default_true")]
  271    pub focus: bool,
  272    #[serde(default)]
  273    pub clone: bool,
  274}
  275
  276fn default_1() -> usize {
  277    1
  278}
  279
  280/// Moves an item to a pane in the specified direction.
  281#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  282#[action(namespace = workspace)]
  283#[serde(deny_unknown_fields)]
  284pub struct MoveItemToPaneInDirection {
  285    #[serde(default = "default_right")]
  286    pub direction: SplitDirection,
  287    #[serde(default = "default_true")]
  288    pub focus: bool,
  289    #[serde(default)]
  290    pub clone: bool,
  291}
  292
  293fn default_right() -> SplitDirection {
  294    SplitDirection::Right
  295}
  296
  297/// Saves all open files in the workspace.
  298#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  299#[action(namespace = workspace)]
  300#[serde(deny_unknown_fields)]
  301pub struct SaveAll {
  302    #[serde(default)]
  303    pub save_intent: Option<SaveIntent>,
  304}
  305
  306/// Saves the current file with the specified options.
  307#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  308#[action(namespace = workspace)]
  309#[serde(deny_unknown_fields)]
  310pub struct Save {
  311    #[serde(default)]
  312    pub save_intent: Option<SaveIntent>,
  313}
  314
  315/// Closes all items and panes in the workspace.
  316#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  317#[action(namespace = workspace)]
  318#[serde(deny_unknown_fields)]
  319pub struct CloseAllItemsAndPanes {
  320    #[serde(default)]
  321    pub save_intent: Option<SaveIntent>,
  322}
  323
  324/// Closes all inactive tabs and panes in the workspace.
  325#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  326#[action(namespace = workspace)]
  327#[serde(deny_unknown_fields)]
  328pub struct CloseInactiveTabsAndPanes {
  329    #[serde(default)]
  330    pub save_intent: Option<SaveIntent>,
  331}
  332
  333/// Sends a sequence of keystrokes to the active element.
  334#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  335#[action(namespace = workspace)]
  336pub struct SendKeystrokes(pub String);
  337
  338/// Reloads the active item or workspace.
  339#[derive(Clone, Deserialize, PartialEq, Default, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct Reload {
  343    pub binary_path: Option<PathBuf>,
  344}
  345
  346actions!(
  347    project_symbols,
  348    [
  349        /// Toggles the project symbols search.
  350        #[action(name = "Toggle")]
  351        ToggleProjectSymbols
  352    ]
  353);
  354
  355/// Toggles the file finder interface.
  356#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  357#[action(namespace = file_finder, name = "Toggle")]
  358#[serde(deny_unknown_fields)]
  359pub struct ToggleFileFinder {
  360    #[serde(default)]
  361    pub separate_history: bool,
  362}
  363
  364/// Increases size of a currently focused dock by a given amount of pixels.
  365#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  366#[action(namespace = workspace)]
  367#[serde(deny_unknown_fields)]
  368pub struct IncreaseActiveDockSize {
  369    /// For 0px parameter, uses UI font size value.
  370    #[serde(default)]
  371    pub px: u32,
  372}
  373
  374/// Decreases size of a currently focused dock by a given amount of pixels.
  375#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  376#[action(namespace = workspace)]
  377#[serde(deny_unknown_fields)]
  378pub struct DecreaseActiveDockSize {
  379    /// For 0px parameter, uses UI font size value.
  380    #[serde(default)]
  381    pub px: u32,
  382}
  383
  384/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  385#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387#[serde(deny_unknown_fields)]
  388pub struct IncreaseOpenDocksSize {
  389    /// For 0px parameter, uses UI font size value.
  390    #[serde(default)]
  391    pub px: u32,
  392}
  393
  394/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  395#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  396#[action(namespace = workspace)]
  397#[serde(deny_unknown_fields)]
  398pub struct DecreaseOpenDocksSize {
  399    /// For 0px parameter, uses UI font size value.
  400    #[serde(default)]
  401    pub px: u32,
  402}
  403
  404actions!(
  405    workspace,
  406    [
  407        /// Activates the pane to the left.
  408        ActivatePaneLeft,
  409        /// Activates the pane to the right.
  410        ActivatePaneRight,
  411        /// Activates the pane above.
  412        ActivatePaneUp,
  413        /// Activates the pane below.
  414        ActivatePaneDown,
  415        /// Swaps the current pane with the one to the left.
  416        SwapPaneLeft,
  417        /// Swaps the current pane with the one to the right.
  418        SwapPaneRight,
  419        /// Swaps the current pane with the one above.
  420        SwapPaneUp,
  421        /// Swaps the current pane with the one below.
  422        SwapPaneDown,
  423    ]
  424);
  425
  426#[derive(PartialEq, Eq, Debug)]
  427pub enum CloseIntent {
  428    /// Quit the program entirely.
  429    Quit,
  430    /// Close a window.
  431    CloseWindow,
  432    /// Replace the workspace in an existing window.
  433    ReplaceWindow,
  434}
  435
  436#[derive(Clone)]
  437pub struct Toast {
  438    id: NotificationId,
  439    msg: Cow<'static, str>,
  440    autohide: bool,
  441    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  442}
  443
  444impl Toast {
  445    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  446        Toast {
  447            id,
  448            msg: msg.into(),
  449            on_click: None,
  450            autohide: false,
  451        }
  452    }
  453
  454    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  455    where
  456        M: Into<Cow<'static, str>>,
  457        F: Fn(&mut Window, &mut App) + 'static,
  458    {
  459        self.on_click = Some((message.into(), Arc::new(on_click)));
  460        self
  461    }
  462
  463    pub fn autohide(mut self) -> Self {
  464        self.autohide = true;
  465        self
  466    }
  467}
  468
  469impl PartialEq for Toast {
  470    fn eq(&self, other: &Self) -> bool {
  471        self.id == other.id
  472            && self.msg == other.msg
  473            && self.on_click.is_some() == other.on_click.is_some()
  474    }
  475}
  476
  477/// Opens a new terminal with the specified working directory.
  478#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  479#[action(namespace = workspace)]
  480#[serde(deny_unknown_fields)]
  481pub struct OpenTerminal {
  482    pub working_directory: PathBuf,
  483}
  484
  485#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  486pub struct WorkspaceId(i64);
  487
  488impl StaticColumnCount for WorkspaceId {}
  489impl Bind for WorkspaceId {
  490    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  491        self.0.bind(statement, start_index)
  492    }
  493}
  494impl Column for WorkspaceId {
  495    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  496        i64::column(statement, start_index)
  497            .map(|(i, next_index)| (Self(i), next_index))
  498            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  499    }
  500}
  501impl From<WorkspaceId> for i64 {
  502    fn from(val: WorkspaceId) -> Self {
  503        val.0
  504    }
  505}
  506
  507pub fn init_settings(cx: &mut App) {
  508    WorkspaceSettings::register(cx);
  509    ItemSettings::register(cx);
  510    PreviewTabsSettings::register(cx);
  511    TabBarSettings::register(cx);
  512}
  513
  514fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  515    let paths = cx.prompt_for_paths(options);
  516    cx.spawn(
  517        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  518            Ok(Some(paths)) => {
  519                cx.update(|cx| {
  520                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  521                })
  522                .ok();
  523            }
  524            Ok(None) => {}
  525            Err(err) => {
  526                util::log_err(&err);
  527                cx.update(|cx| {
  528                    if let Some(workspace_window) = cx
  529                        .active_window()
  530                        .and_then(|window| window.downcast::<Workspace>())
  531                    {
  532                        workspace_window
  533                            .update(cx, |workspace, _, cx| {
  534                                workspace.show_portal_error(err.to_string(), cx);
  535                            })
  536                            .ok();
  537                    }
  538                })
  539                .ok();
  540            }
  541        },
  542    )
  543    .detach();
  544}
  545
  546pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  547    init_settings(cx);
  548    component::init();
  549    theme_preview::init(cx);
  550    toast_layer::init(cx);
  551    history_manager::init(cx);
  552
  553    cx.on_action(Workspace::close_global);
  554    cx.on_action(reload);
  555
  556    cx.on_action({
  557        let app_state = Arc::downgrade(&app_state);
  558        move |_: &Open, cx: &mut App| {
  559            if let Some(app_state) = app_state.upgrade() {
  560                prompt_and_open_paths(
  561                    app_state,
  562                    PathPromptOptions {
  563                        files: true,
  564                        directories: true,
  565                        multiple: true,
  566                    },
  567                    cx,
  568                );
  569            }
  570        }
  571    });
  572    cx.on_action({
  573        let app_state = Arc::downgrade(&app_state);
  574        move |_: &OpenFiles, cx: &mut App| {
  575            let directories = cx.can_select_mixed_files_and_dirs();
  576            if let Some(app_state) = app_state.upgrade() {
  577                prompt_and_open_paths(
  578                    app_state,
  579                    PathPromptOptions {
  580                        files: true,
  581                        directories,
  582                        multiple: true,
  583                    },
  584                    cx,
  585                );
  586            }
  587        }
  588    });
  589}
  590
  591type BuildProjectItemFn =
  592    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  593
  594type BuildProjectItemForPathFn =
  595    fn(
  596        &Entity<Project>,
  597        &ProjectPath,
  598        &mut Window,
  599        &mut App,
  600    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  601
  602#[derive(Clone, Default)]
  603struct ProjectItemRegistry {
  604    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  605    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  606}
  607
  608impl ProjectItemRegistry {
  609    fn register<T: ProjectItem>(&mut self) {
  610        self.build_project_item_fns_by_type.insert(
  611            TypeId::of::<T::Item>(),
  612            |item, project, pane, window, cx| {
  613                let item = item.downcast().unwrap();
  614                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  615                    as Box<dyn ItemHandle>
  616            },
  617        );
  618        self.build_project_item_for_path_fns
  619            .push(|project, project_path, window, cx| {
  620                let project_item =
  621                    <T::Item as project::ProjectItem>::try_open(project, project_path, cx)?;
  622                let project = project.clone();
  623                Some(window.spawn(cx, async move |cx| {
  624                    let project_item = project_item.await?;
  625                    let project_entry_id: Option<ProjectEntryId> =
  626                        project_item.read_with(cx, project::ProjectItem::entry_id)?;
  627                    let build_workspace_item = Box::new(
  628                        |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  629                            Box::new(cx.new(|cx| {
  630                                T::for_project_item(project, Some(pane), project_item, window, cx)
  631                            })) as Box<dyn ItemHandle>
  632                        },
  633                    ) as Box<_>;
  634                    Ok((project_entry_id, build_workspace_item))
  635                }))
  636            });
  637    }
  638
  639    fn open_path(
  640        &self,
  641        project: &Entity<Project>,
  642        path: &ProjectPath,
  643        window: &mut Window,
  644        cx: &mut App,
  645    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  646        let Some(open_project_item) = self
  647            .build_project_item_for_path_fns
  648            .iter()
  649            .rev()
  650            .find_map(|open_project_item| open_project_item(&project, &path, window, cx))
  651        else {
  652            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  653        };
  654        open_project_item
  655    }
  656
  657    fn build_item<T: project::ProjectItem>(
  658        &self,
  659        item: Entity<T>,
  660        project: Entity<Project>,
  661        pane: Option<&Pane>,
  662        window: &mut Window,
  663        cx: &mut App,
  664    ) -> Option<Box<dyn ItemHandle>> {
  665        let build = self
  666            .build_project_item_fns_by_type
  667            .get(&TypeId::of::<T>())?;
  668        Some(build(item.into_any(), project, pane, window, cx))
  669    }
  670}
  671
  672type WorkspaceItemBuilder =
  673    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  674
  675impl Global for ProjectItemRegistry {}
  676
  677/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  678/// items will get a chance to open the file, starting from the project item that
  679/// was added last.
  680pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  681    cx.default_global::<ProjectItemRegistry>().register::<I>();
  682}
  683
  684#[derive(Default)]
  685pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  686
  687struct FollowableViewDescriptor {
  688    from_state_proto: fn(
  689        Entity<Workspace>,
  690        ViewId,
  691        &mut Option<proto::view::Variant>,
  692        &mut Window,
  693        &mut App,
  694    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  695    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  696}
  697
  698impl Global for FollowableViewRegistry {}
  699
  700impl FollowableViewRegistry {
  701    pub fn register<I: FollowableItem>(cx: &mut App) {
  702        cx.default_global::<Self>().0.insert(
  703            TypeId::of::<I>(),
  704            FollowableViewDescriptor {
  705                from_state_proto: |workspace, id, state, window, cx| {
  706                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  707                        cx.foreground_executor()
  708                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  709                    })
  710                },
  711                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  712            },
  713        );
  714    }
  715
  716    pub fn from_state_proto(
  717        workspace: Entity<Workspace>,
  718        view_id: ViewId,
  719        mut state: Option<proto::view::Variant>,
  720        window: &mut Window,
  721        cx: &mut App,
  722    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  723        cx.update_default_global(|this: &mut Self, cx| {
  724            this.0.values().find_map(|descriptor| {
  725                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  726            })
  727        })
  728    }
  729
  730    pub fn to_followable_view(
  731        view: impl Into<AnyView>,
  732        cx: &App,
  733    ) -> Option<Box<dyn FollowableItemHandle>> {
  734        let this = cx.try_global::<Self>()?;
  735        let view = view.into();
  736        let descriptor = this.0.get(&view.entity_type())?;
  737        Some((descriptor.to_followable_view)(&view))
  738    }
  739}
  740
  741#[derive(Copy, Clone)]
  742struct SerializableItemDescriptor {
  743    deserialize: fn(
  744        Entity<Project>,
  745        WeakEntity<Workspace>,
  746        WorkspaceId,
  747        ItemId,
  748        &mut Window,
  749        &mut Context<Pane>,
  750    ) -> Task<Result<Box<dyn ItemHandle>>>,
  751    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  752    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  753}
  754
  755#[derive(Default)]
  756struct SerializableItemRegistry {
  757    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  758    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  759}
  760
  761impl Global for SerializableItemRegistry {}
  762
  763impl SerializableItemRegistry {
  764    fn deserialize(
  765        item_kind: &str,
  766        project: Entity<Project>,
  767        workspace: WeakEntity<Workspace>,
  768        workspace_id: WorkspaceId,
  769        item_item: ItemId,
  770        window: &mut Window,
  771        cx: &mut Context<Pane>,
  772    ) -> Task<Result<Box<dyn ItemHandle>>> {
  773        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  774            return Task::ready(Err(anyhow!(
  775                "cannot deserialize {}, descriptor not found",
  776                item_kind
  777            )));
  778        };
  779
  780        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  781    }
  782
  783    fn cleanup(
  784        item_kind: &str,
  785        workspace_id: WorkspaceId,
  786        loaded_items: Vec<ItemId>,
  787        window: &mut Window,
  788        cx: &mut App,
  789    ) -> Task<Result<()>> {
  790        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  791            return Task::ready(Err(anyhow!(
  792                "cannot cleanup {}, descriptor not found",
  793                item_kind
  794            )));
  795        };
  796
  797        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  798    }
  799
  800    fn view_to_serializable_item_handle(
  801        view: AnyView,
  802        cx: &App,
  803    ) -> Option<Box<dyn SerializableItemHandle>> {
  804        let this = cx.try_global::<Self>()?;
  805        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  806        Some((descriptor.view_to_serializable_item)(view))
  807    }
  808
  809    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  810        let this = cx.try_global::<Self>()?;
  811        this.descriptors_by_kind.get(item_kind).copied()
  812    }
  813}
  814
  815pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  816    let serialized_item_kind = I::serialized_item_kind();
  817
  818    let registry = cx.default_global::<SerializableItemRegistry>();
  819    let descriptor = SerializableItemDescriptor {
  820        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  821            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  822            cx.foreground_executor()
  823                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  824        },
  825        cleanup: |workspace_id, loaded_items, window, cx| {
  826            I::cleanup(workspace_id, loaded_items, window, cx)
  827        },
  828        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  829    };
  830    registry
  831        .descriptors_by_kind
  832        .insert(Arc::from(serialized_item_kind), descriptor);
  833    registry
  834        .descriptors_by_type
  835        .insert(TypeId::of::<I>(), descriptor);
  836}
  837
  838pub struct AppState {
  839    pub languages: Arc<LanguageRegistry>,
  840    pub client: Arc<Client>,
  841    pub user_store: Entity<UserStore>,
  842    pub workspace_store: Entity<WorkspaceStore>,
  843    pub fs: Arc<dyn fs::Fs>,
  844    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  845    pub node_runtime: NodeRuntime,
  846    pub session: Entity<AppSession>,
  847}
  848
  849struct GlobalAppState(Weak<AppState>);
  850
  851impl Global for GlobalAppState {}
  852
  853pub struct WorkspaceStore {
  854    workspaces: HashSet<WindowHandle<Workspace>>,
  855    client: Arc<Client>,
  856    _subscriptions: Vec<client::Subscription>,
  857}
  858
  859#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  860pub enum CollaboratorId {
  861    PeerId(PeerId),
  862    Agent,
  863}
  864
  865impl From<PeerId> for CollaboratorId {
  866    fn from(peer_id: PeerId) -> Self {
  867        CollaboratorId::PeerId(peer_id)
  868    }
  869}
  870
  871impl From<&PeerId> for CollaboratorId {
  872    fn from(peer_id: &PeerId) -> Self {
  873        CollaboratorId::PeerId(*peer_id)
  874    }
  875}
  876
  877#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  878struct Follower {
  879    project_id: Option<u64>,
  880    peer_id: PeerId,
  881}
  882
  883impl AppState {
  884    #[track_caller]
  885    pub fn global(cx: &App) -> Weak<Self> {
  886        cx.global::<GlobalAppState>().0.clone()
  887    }
  888    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  889        cx.try_global::<GlobalAppState>()
  890            .map(|state| state.0.clone())
  891    }
  892    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  893        cx.set_global(GlobalAppState(state));
  894    }
  895
  896    #[cfg(any(test, feature = "test-support"))]
  897    pub fn test(cx: &mut App) -> Arc<Self> {
  898        use node_runtime::NodeRuntime;
  899        use session::Session;
  900        use settings::SettingsStore;
  901
  902        if !cx.has_global::<SettingsStore>() {
  903            let settings_store = SettingsStore::test(cx);
  904            cx.set_global(settings_store);
  905        }
  906
  907        let fs = fs::FakeFs::new(cx.background_executor().clone());
  908        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  909        let clock = Arc::new(clock::FakeSystemClock::new());
  910        let http_client = http_client::FakeHttpClient::with_404_response();
  911        let client = Client::new(clock, http_client.clone(), cx);
  912        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  913        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  914        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  915
  916        theme::init(theme::LoadThemes::JustBase, cx);
  917        client::init(&client, cx);
  918        crate::init_settings(cx);
  919
  920        Arc::new(Self {
  921            client,
  922            fs,
  923            languages,
  924            user_store,
  925            workspace_store,
  926            node_runtime: NodeRuntime::unavailable(),
  927            build_window_options: |_, _| Default::default(),
  928            session,
  929        })
  930    }
  931}
  932
  933struct DelayedDebouncedEditAction {
  934    task: Option<Task<()>>,
  935    cancel_channel: Option<oneshot::Sender<()>>,
  936}
  937
  938impl DelayedDebouncedEditAction {
  939    fn new() -> DelayedDebouncedEditAction {
  940        DelayedDebouncedEditAction {
  941            task: None,
  942            cancel_channel: None,
  943        }
  944    }
  945
  946    fn fire_new<F>(
  947        &mut self,
  948        delay: Duration,
  949        window: &mut Window,
  950        cx: &mut Context<Workspace>,
  951        func: F,
  952    ) where
  953        F: 'static
  954            + Send
  955            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
  956    {
  957        if let Some(channel) = self.cancel_channel.take() {
  958            _ = channel.send(());
  959        }
  960
  961        let (sender, mut receiver) = oneshot::channel::<()>();
  962        self.cancel_channel = Some(sender);
  963
  964        let previous_task = self.task.take();
  965        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
  966            let mut timer = cx.background_executor().timer(delay).fuse();
  967            if let Some(previous_task) = previous_task {
  968                previous_task.await;
  969            }
  970
  971            futures::select_biased! {
  972                _ = receiver => return,
  973                    _ = timer => {}
  974            }
  975
  976            if let Some(result) = workspace
  977                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
  978                .log_err()
  979            {
  980                result.await.log_err();
  981            }
  982        }));
  983    }
  984}
  985
  986pub enum Event {
  987    PaneAdded(Entity<Pane>),
  988    PaneRemoved,
  989    ItemAdded {
  990        item: Box<dyn ItemHandle>,
  991    },
  992    ItemRemoved,
  993    ActiveItemChanged,
  994    UserSavedItem {
  995        pane: WeakEntity<Pane>,
  996        item: Box<dyn WeakItemHandle>,
  997        save_intent: SaveIntent,
  998    },
  999    ContactRequestedJoin(u64),
 1000    WorkspaceCreated(WeakEntity<Workspace>),
 1001    OpenBundledFile {
 1002        text: Cow<'static, str>,
 1003        title: &'static str,
 1004        language: &'static str,
 1005    },
 1006    ZoomChanged,
 1007    ModalOpened,
 1008    ClearActivityIndicator,
 1009}
 1010
 1011#[derive(Debug)]
 1012pub enum OpenVisible {
 1013    All,
 1014    None,
 1015    OnlyFiles,
 1016    OnlyDirectories,
 1017}
 1018
 1019type PromptForNewPath = Box<
 1020    dyn Fn(
 1021        &mut Workspace,
 1022        DirectoryLister,
 1023        &mut Window,
 1024        &mut Context<Workspace>,
 1025    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1026>;
 1027
 1028type PromptForOpenPath = Box<
 1029    dyn Fn(
 1030        &mut Workspace,
 1031        DirectoryLister,
 1032        &mut Window,
 1033        &mut Context<Workspace>,
 1034    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1035>;
 1036
 1037/// Collects everything project-related for a certain window opened.
 1038/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1039///
 1040/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1041/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1042/// that can be used to register a global action to be triggered from any place in the window.
 1043pub struct Workspace {
 1044    weak_self: WeakEntity<Self>,
 1045    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1046    zoomed: Option<AnyWeakView>,
 1047    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1048    zoomed_position: Option<DockPosition>,
 1049    center: PaneGroup,
 1050    left_dock: Entity<Dock>,
 1051    bottom_dock: Entity<Dock>,
 1052    bottom_dock_layout: BottomDockLayout,
 1053    right_dock: Entity<Dock>,
 1054    panes: Vec<Entity<Pane>>,
 1055    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1056    active_pane: Entity<Pane>,
 1057    last_active_center_pane: Option<WeakEntity<Pane>>,
 1058    last_active_view_id: Option<proto::ViewId>,
 1059    status_bar: Entity<StatusBar>,
 1060    modal_layer: Entity<ModalLayer>,
 1061    toast_layer: Entity<ToastLayer>,
 1062    titlebar_item: Option<AnyView>,
 1063    notifications: Notifications,
 1064    suppressed_notifications: HashSet<NotificationId>,
 1065    project: Entity<Project>,
 1066    follower_states: HashMap<CollaboratorId, FollowerState>,
 1067    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1068    window_edited: bool,
 1069    dirty_items: HashMap<EntityId, Subscription>,
 1070    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1071    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1072    database_id: Option<WorkspaceId>,
 1073    app_state: Arc<AppState>,
 1074    dispatching_keystrokes: Rc<RefCell<(HashSet<String>, Vec<Keystroke>)>>,
 1075    _subscriptions: Vec<Subscription>,
 1076    _apply_leader_updates: Task<Result<()>>,
 1077    _observe_current_user: Task<Result<()>>,
 1078    _schedule_serialize: Option<Task<()>>,
 1079    pane_history_timestamp: Arc<AtomicUsize>,
 1080    bounds: Bounds<Pixels>,
 1081    pub centered_layout: bool,
 1082    bounds_save_task_queued: Option<Task<()>>,
 1083    on_prompt_for_new_path: Option<PromptForNewPath>,
 1084    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1085    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1086    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1087    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1088    serialized_ssh_project: Option<SerializedSshProject>,
 1089    _items_serializer: Task<Result<()>>,
 1090    session_id: Option<String>,
 1091}
 1092
 1093impl EventEmitter<Event> for Workspace {}
 1094
 1095#[derive(Clone)]
 1096pub struct OpenInDebugJson {
 1097    pub scenario: DebugScenario,
 1098    pub id: WorkspaceId,
 1099}
 1100
 1101impl EventEmitter<OpenInDebugJson> for Workspace {}
 1102
 1103#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1104pub struct ViewId {
 1105    pub creator: CollaboratorId,
 1106    pub id: u64,
 1107}
 1108
 1109pub struct FollowerState {
 1110    center_pane: Entity<Pane>,
 1111    dock_pane: Option<Entity<Pane>>,
 1112    active_view_id: Option<ViewId>,
 1113    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1114}
 1115
 1116struct FollowerView {
 1117    view: Box<dyn FollowableItemHandle>,
 1118    location: Option<proto::PanelId>,
 1119}
 1120
 1121impl Workspace {
 1122    const DEFAULT_PADDING: f32 = 0.2;
 1123    const MAX_PADDING: f32 = 0.4;
 1124
 1125    pub fn new(
 1126        workspace_id: Option<WorkspaceId>,
 1127        project: Entity<Project>,
 1128        app_state: Arc<AppState>,
 1129        window: &mut Window,
 1130        cx: &mut Context<Self>,
 1131    ) -> Self {
 1132        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1133            match event {
 1134                project::Event::RemoteIdChanged(_) => {
 1135                    this.update_window_title(window, cx);
 1136                }
 1137
 1138                project::Event::CollaboratorLeft(peer_id) => {
 1139                    this.collaborator_left(*peer_id, window, cx);
 1140                }
 1141
 1142                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1143                    this.update_window_title(window, cx);
 1144                    this.serialize_workspace(window, cx);
 1145                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1146                    // So we need to update the history.
 1147                    this.update_history(cx);
 1148                }
 1149
 1150                project::Event::DisconnectedFromHost => {
 1151                    this.update_window_edited(window, cx);
 1152                    let leaders_to_unfollow =
 1153                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1154                    for leader_id in leaders_to_unfollow {
 1155                        this.unfollow(leader_id, window, cx);
 1156                    }
 1157                }
 1158
 1159                project::Event::DisconnectedFromSshRemote => {
 1160                    this.update_window_edited(window, cx);
 1161                }
 1162
 1163                project::Event::Closed => {
 1164                    window.remove_window();
 1165                }
 1166
 1167                project::Event::DeletedEntry(_, entry_id) => {
 1168                    for pane in this.panes.iter() {
 1169                        pane.update(cx, |pane, cx| {
 1170                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1171                        });
 1172                    }
 1173                }
 1174
 1175                project::Event::Toast {
 1176                    notification_id,
 1177                    message,
 1178                } => this.show_notification(
 1179                    NotificationId::named(notification_id.clone()),
 1180                    cx,
 1181                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1182                ),
 1183
 1184                project::Event::HideToast { notification_id } => {
 1185                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1186                }
 1187
 1188                project::Event::LanguageServerPrompt(request) => {
 1189                    struct LanguageServerPrompt;
 1190
 1191                    let mut hasher = DefaultHasher::new();
 1192                    request.lsp_name.as_str().hash(&mut hasher);
 1193                    let id = hasher.finish();
 1194
 1195                    this.show_notification(
 1196                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1197                        cx,
 1198                        |cx| {
 1199                            cx.new(|cx| {
 1200                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1201                            })
 1202                        },
 1203                    );
 1204                }
 1205
 1206                project::Event::AgentLocationChanged => {
 1207                    this.handle_agent_location_changed(window, cx)
 1208                }
 1209
 1210                _ => {}
 1211            }
 1212            cx.notify()
 1213        })
 1214        .detach();
 1215
 1216        cx.subscribe_in(
 1217            &project.read(cx).breakpoint_store(),
 1218            window,
 1219            |workspace, _, event, window, cx| match event {
 1220                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1221                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1222                    workspace.serialize_workspace(window, cx);
 1223                }
 1224                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1225            },
 1226        )
 1227        .detach();
 1228
 1229        cx.on_focus_lost(window, |this, window, cx| {
 1230            let focus_handle = this.focus_handle(cx);
 1231            window.focus(&focus_handle);
 1232        })
 1233        .detach();
 1234
 1235        let weak_handle = cx.entity().downgrade();
 1236        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1237
 1238        let center_pane = cx.new(|cx| {
 1239            let mut center_pane = Pane::new(
 1240                weak_handle.clone(),
 1241                project.clone(),
 1242                pane_history_timestamp.clone(),
 1243                None,
 1244                NewFile.boxed_clone(),
 1245                window,
 1246                cx,
 1247            );
 1248            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1249            center_pane
 1250        });
 1251        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1252            .detach();
 1253
 1254        window.focus(&center_pane.focus_handle(cx));
 1255
 1256        cx.emit(Event::PaneAdded(center_pane.clone()));
 1257
 1258        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1259        app_state.workspace_store.update(cx, |store, _| {
 1260            store.workspaces.insert(window_handle);
 1261        });
 1262
 1263        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1264        let mut connection_status = app_state.client.status();
 1265        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1266            current_user.next().await;
 1267            connection_status.next().await;
 1268            let mut stream =
 1269                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1270
 1271            while stream.recv().await.is_some() {
 1272                this.update(cx, |_, cx| cx.notify())?;
 1273            }
 1274            anyhow::Ok(())
 1275        });
 1276
 1277        // All leader updates are enqueued and then processed in a single task, so
 1278        // that each asynchronous operation can be run in order.
 1279        let (leader_updates_tx, mut leader_updates_rx) =
 1280            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1281        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1282            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1283                Self::process_leader_update(&this, leader_id, update, cx)
 1284                    .await
 1285                    .log_err();
 1286            }
 1287
 1288            Ok(())
 1289        });
 1290
 1291        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1292        let modal_layer = cx.new(|_| ModalLayer::new());
 1293        let toast_layer = cx.new(|_| ToastLayer::new());
 1294        cx.subscribe(
 1295            &modal_layer,
 1296            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1297                cx.emit(Event::ModalOpened);
 1298            },
 1299        )
 1300        .detach();
 1301
 1302        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 1303        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1304        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1305        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1306        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1307        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1308        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1309        let status_bar = cx.new(|cx| {
 1310            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1311            status_bar.add_left_item(left_dock_buttons, window, cx);
 1312            status_bar.add_right_item(right_dock_buttons, window, cx);
 1313            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1314            status_bar
 1315        });
 1316
 1317        let session_id = app_state.session.read(cx).id().to_owned();
 1318
 1319        let mut active_call = None;
 1320        if let Some(call) = ActiveCall::try_global(cx) {
 1321            let call = call.clone();
 1322            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1323            active_call = Some((call, subscriptions));
 1324        }
 1325
 1326        let (serializable_items_tx, serializable_items_rx) =
 1327            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1328        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1329            Self::serialize_items(&this, serializable_items_rx, cx).await
 1330        });
 1331
 1332        let subscriptions = vec![
 1333            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1334            cx.observe_window_bounds(window, move |this, window, cx| {
 1335                if this.bounds_save_task_queued.is_some() {
 1336                    return;
 1337                }
 1338                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1339                    cx.background_executor()
 1340                        .timer(Duration::from_millis(100))
 1341                        .await;
 1342                    this.update_in(cx, |this, window, cx| {
 1343                        if let Some(display) = window.display(cx) {
 1344                            if let Ok(display_uuid) = display.uuid() {
 1345                                let window_bounds = window.inner_window_bounds();
 1346                                if let Some(database_id) = workspace_id {
 1347                                    cx.background_executor()
 1348                                        .spawn(DB.set_window_open_status(
 1349                                            database_id,
 1350                                            SerializedWindowBounds(window_bounds),
 1351                                            display_uuid,
 1352                                        ))
 1353                                        .detach_and_log_err(cx);
 1354                                }
 1355                            }
 1356                        }
 1357                        this.bounds_save_task_queued.take();
 1358                    })
 1359                    .ok();
 1360                }));
 1361                cx.notify();
 1362            }),
 1363            cx.observe_window_appearance(window, |_, window, cx| {
 1364                let window_appearance = window.appearance();
 1365
 1366                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1367
 1368                ThemeSettings::reload_current_theme(cx);
 1369                ThemeSettings::reload_current_icon_theme(cx);
 1370            }),
 1371            cx.on_release(move |this, cx| {
 1372                this.app_state.workspace_store.update(cx, move |store, _| {
 1373                    store.workspaces.remove(&window_handle.clone());
 1374                })
 1375            }),
 1376        ];
 1377
 1378        cx.defer_in(window, |this, window, cx| {
 1379            this.update_window_title(window, cx);
 1380            this.show_initial_notifications(cx);
 1381        });
 1382        Workspace {
 1383            weak_self: weak_handle.clone(),
 1384            zoomed: None,
 1385            zoomed_position: None,
 1386            previous_dock_drag_coordinates: None,
 1387            center: PaneGroup::new(center_pane.clone()),
 1388            panes: vec![center_pane.clone()],
 1389            panes_by_item: Default::default(),
 1390            active_pane: center_pane.clone(),
 1391            last_active_center_pane: Some(center_pane.downgrade()),
 1392            last_active_view_id: None,
 1393            status_bar,
 1394            modal_layer,
 1395            toast_layer,
 1396            titlebar_item: None,
 1397            notifications: Notifications::default(),
 1398            suppressed_notifications: HashSet::default(),
 1399            left_dock,
 1400            bottom_dock,
 1401            bottom_dock_layout,
 1402            right_dock,
 1403            project: project.clone(),
 1404            follower_states: Default::default(),
 1405            last_leaders_by_pane: Default::default(),
 1406            dispatching_keystrokes: Default::default(),
 1407            window_edited: false,
 1408            dirty_items: Default::default(),
 1409            active_call,
 1410            database_id: workspace_id,
 1411            app_state,
 1412            _observe_current_user,
 1413            _apply_leader_updates,
 1414            _schedule_serialize: None,
 1415            leader_updates_tx,
 1416            _subscriptions: subscriptions,
 1417            pane_history_timestamp,
 1418            workspace_actions: Default::default(),
 1419            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1420            bounds: Default::default(),
 1421            centered_layout: false,
 1422            bounds_save_task_queued: None,
 1423            on_prompt_for_new_path: None,
 1424            on_prompt_for_open_path: None,
 1425            terminal_provider: None,
 1426            debugger_provider: None,
 1427            serializable_items_tx,
 1428            _items_serializer,
 1429            session_id: Some(session_id),
 1430            serialized_ssh_project: None,
 1431        }
 1432    }
 1433
 1434    pub fn new_local(
 1435        abs_paths: Vec<PathBuf>,
 1436        app_state: Arc<AppState>,
 1437        requesting_window: Option<WindowHandle<Workspace>>,
 1438        env: Option<HashMap<String, String>>,
 1439        cx: &mut App,
 1440    ) -> Task<
 1441        anyhow::Result<(
 1442            WindowHandle<Workspace>,
 1443            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1444        )>,
 1445    > {
 1446        let project_handle = Project::local(
 1447            app_state.client.clone(),
 1448            app_state.node_runtime.clone(),
 1449            app_state.user_store.clone(),
 1450            app_state.languages.clone(),
 1451            app_state.fs.clone(),
 1452            env,
 1453            cx,
 1454        );
 1455
 1456        cx.spawn(async move |cx| {
 1457            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1458            for path in abs_paths.into_iter() {
 1459                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1460                    paths_to_open.push(canonical)
 1461                } else {
 1462                    paths_to_open.push(path)
 1463                }
 1464            }
 1465
 1466            let serialized_workspace =
 1467                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1468
 1469            let workspace_location = serialized_workspace
 1470                .as_ref()
 1471                .map(|ws| &ws.location)
 1472                .and_then(|loc| match loc {
 1473                    SerializedWorkspaceLocation::Local(_, order) => {
 1474                        Some((loc.sorted_paths(), order.order()))
 1475                    }
 1476                    _ => None,
 1477                });
 1478
 1479            if let Some((paths, order)) = workspace_location {
 1480                paths_to_open = paths.iter().cloned().collect();
 1481
 1482                if order.iter().enumerate().any(|(i, &j)| i != j) {
 1483                    project_handle
 1484                        .update(cx, |project, cx| {
 1485                            project.set_worktrees_reordered(true, cx);
 1486                        })
 1487                        .log_err();
 1488                }
 1489            }
 1490
 1491            // Get project paths for all of the abs_paths
 1492            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1493                Vec::with_capacity(paths_to_open.len());
 1494
 1495            for path in paths_to_open.into_iter() {
 1496                if let Some((_, project_entry)) = cx
 1497                    .update(|cx| {
 1498                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1499                    })?
 1500                    .await
 1501                    .log_err()
 1502                {
 1503                    project_paths.push((path, Some(project_entry)));
 1504                } else {
 1505                    project_paths.push((path, None));
 1506                }
 1507            }
 1508
 1509            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1510                serialized_workspace.id
 1511            } else {
 1512                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1513            };
 1514
 1515            let toolchains = DB.toolchains(workspace_id).await?;
 1516
 1517            for (toolchain, worktree_id, path) in toolchains {
 1518                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1519                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1520                    continue;
 1521                }
 1522
 1523                project_handle
 1524                    .update(cx, |this, cx| {
 1525                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1526                    })?
 1527                    .await;
 1528            }
 1529            let window = if let Some(window) = requesting_window {
 1530                let centered_layout = serialized_workspace
 1531                    .as_ref()
 1532                    .map(|w| w.centered_layout)
 1533                    .unwrap_or(false);
 1534
 1535                cx.update_window(window.into(), |_, window, cx| {
 1536                    window.replace_root(cx, |window, cx| {
 1537                        let mut workspace = Workspace::new(
 1538                            Some(workspace_id),
 1539                            project_handle.clone(),
 1540                            app_state.clone(),
 1541                            window,
 1542                            cx,
 1543                        );
 1544
 1545                        workspace.centered_layout = centered_layout;
 1546                        workspace
 1547                    });
 1548                })?;
 1549                window
 1550            } else {
 1551                let window_bounds_override = window_bounds_env_override();
 1552
 1553                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1554                    (Some(WindowBounds::Windowed(bounds)), None)
 1555                } else {
 1556                    let restorable_bounds = serialized_workspace
 1557                        .as_ref()
 1558                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1559                        .or_else(|| {
 1560                            let (display, window_bounds) = DB.last_window().log_err()?;
 1561                            Some((display?, window_bounds?))
 1562                        });
 1563
 1564                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1565                        (Some(serialized_status.0), Some(serialized_display))
 1566                    } else {
 1567                        (None, None)
 1568                    }
 1569                };
 1570
 1571                // Use the serialized workspace to construct the new window
 1572                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1573                options.window_bounds = window_bounds;
 1574                let centered_layout = serialized_workspace
 1575                    .as_ref()
 1576                    .map(|w| w.centered_layout)
 1577                    .unwrap_or(false);
 1578                cx.open_window(options, {
 1579                    let app_state = app_state.clone();
 1580                    let project_handle = project_handle.clone();
 1581                    move |window, cx| {
 1582                        cx.new(|cx| {
 1583                            let mut workspace = Workspace::new(
 1584                                Some(workspace_id),
 1585                                project_handle,
 1586                                app_state,
 1587                                window,
 1588                                cx,
 1589                            );
 1590                            workspace.centered_layout = centered_layout;
 1591                            workspace
 1592                        })
 1593                    }
 1594                })?
 1595            };
 1596
 1597            notify_if_database_failed(window, cx);
 1598            let opened_items = window
 1599                .update(cx, |_workspace, window, cx| {
 1600                    open_items(serialized_workspace, project_paths, window, cx)
 1601                })?
 1602                .await
 1603                .unwrap_or_default();
 1604
 1605            window
 1606                .update(cx, |workspace, window, cx| {
 1607                    window.activate_window();
 1608                    workspace.update_history(cx);
 1609                })
 1610                .log_err();
 1611            Ok((window, opened_items))
 1612        })
 1613    }
 1614
 1615    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1616        self.weak_self.clone()
 1617    }
 1618
 1619    pub fn left_dock(&self) -> &Entity<Dock> {
 1620        &self.left_dock
 1621    }
 1622
 1623    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1624        &self.bottom_dock
 1625    }
 1626
 1627    pub fn bottom_dock_layout(&self) -> BottomDockLayout {
 1628        self.bottom_dock_layout
 1629    }
 1630
 1631    pub fn set_bottom_dock_layout(
 1632        &mut self,
 1633        layout: BottomDockLayout,
 1634        window: &mut Window,
 1635        cx: &mut Context<Self>,
 1636    ) {
 1637        let fs = self.project().read(cx).fs();
 1638        settings::update_settings_file::<WorkspaceSettings>(fs.clone(), cx, move |content, _cx| {
 1639            content.bottom_dock_layout = Some(layout);
 1640        });
 1641
 1642        self.bottom_dock_layout = layout;
 1643        cx.notify();
 1644        self.serialize_workspace(window, cx);
 1645    }
 1646
 1647    pub fn right_dock(&self) -> &Entity<Dock> {
 1648        &self.right_dock
 1649    }
 1650
 1651    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1652        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1653    }
 1654
 1655    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1656        match position {
 1657            DockPosition::Left => &self.left_dock,
 1658            DockPosition::Bottom => &self.bottom_dock,
 1659            DockPosition::Right => &self.right_dock,
 1660        }
 1661    }
 1662
 1663    pub fn is_edited(&self) -> bool {
 1664        self.window_edited
 1665    }
 1666
 1667    pub fn add_panel<T: Panel>(
 1668        &mut self,
 1669        panel: Entity<T>,
 1670        window: &mut Window,
 1671        cx: &mut Context<Self>,
 1672    ) {
 1673        let focus_handle = panel.panel_focus_handle(cx);
 1674        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1675            .detach();
 1676
 1677        let dock_position = panel.position(window, cx);
 1678        let dock = self.dock_at_position(dock_position);
 1679
 1680        dock.update(cx, |dock, cx| {
 1681            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1682        });
 1683    }
 1684
 1685    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1686        &self.status_bar
 1687    }
 1688
 1689    pub fn app_state(&self) -> &Arc<AppState> {
 1690        &self.app_state
 1691    }
 1692
 1693    pub fn user_store(&self) -> &Entity<UserStore> {
 1694        &self.app_state.user_store
 1695    }
 1696
 1697    pub fn project(&self) -> &Entity<Project> {
 1698        &self.project
 1699    }
 1700
 1701    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1702        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1703
 1704        for pane_handle in &self.panes {
 1705            let pane = pane_handle.read(cx);
 1706
 1707            for entry in pane.activation_history() {
 1708                history.insert(
 1709                    entry.entity_id,
 1710                    history
 1711                        .get(&entry.entity_id)
 1712                        .cloned()
 1713                        .unwrap_or(0)
 1714                        .max(entry.timestamp),
 1715                );
 1716            }
 1717        }
 1718
 1719        history
 1720    }
 1721
 1722    pub fn recent_navigation_history_iter(
 1723        &self,
 1724        cx: &App,
 1725    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1726        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1727        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1728
 1729        for pane in &self.panes {
 1730            let pane = pane.read(cx);
 1731
 1732            pane.nav_history()
 1733                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1734                    if let Some(fs_path) = &fs_path {
 1735                        abs_paths_opened
 1736                            .entry(fs_path.clone())
 1737                            .or_default()
 1738                            .insert(project_path.clone());
 1739                    }
 1740                    let timestamp = entry.timestamp;
 1741                    match history.entry(project_path) {
 1742                        hash_map::Entry::Occupied(mut entry) => {
 1743                            let (_, old_timestamp) = entry.get();
 1744                            if &timestamp > old_timestamp {
 1745                                entry.insert((fs_path, timestamp));
 1746                            }
 1747                        }
 1748                        hash_map::Entry::Vacant(entry) => {
 1749                            entry.insert((fs_path, timestamp));
 1750                        }
 1751                    }
 1752                });
 1753
 1754            if let Some(item) = pane.active_item() {
 1755                if let Some(project_path) = item.project_path(cx) {
 1756                    let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1757
 1758                    if let Some(fs_path) = &fs_path {
 1759                        abs_paths_opened
 1760                            .entry(fs_path.clone())
 1761                            .or_default()
 1762                            .insert(project_path.clone());
 1763                    }
 1764
 1765                    history.insert(project_path, (fs_path, std::usize::MAX));
 1766                }
 1767            }
 1768        }
 1769
 1770        history
 1771            .into_iter()
 1772            .sorted_by_key(|(_, (_, order))| *order)
 1773            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1774            .rev()
 1775            .filter(move |(history_path, abs_path)| {
 1776                let latest_project_path_opened = abs_path
 1777                    .as_ref()
 1778                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1779                    .and_then(|project_paths| {
 1780                        project_paths
 1781                            .iter()
 1782                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1783                    });
 1784
 1785                match latest_project_path_opened {
 1786                    Some(latest_project_path_opened) => latest_project_path_opened == history_path,
 1787                    None => true,
 1788                }
 1789            })
 1790    }
 1791
 1792    pub fn recent_navigation_history(
 1793        &self,
 1794        limit: Option<usize>,
 1795        cx: &App,
 1796    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1797        self.recent_navigation_history_iter(cx)
 1798            .take(limit.unwrap_or(usize::MAX))
 1799            .collect()
 1800    }
 1801
 1802    fn navigate_history(
 1803        &mut self,
 1804        pane: WeakEntity<Pane>,
 1805        mode: NavigationMode,
 1806        window: &mut Window,
 1807        cx: &mut Context<Workspace>,
 1808    ) -> Task<Result<()>> {
 1809        let to_load = if let Some(pane) = pane.upgrade() {
 1810            pane.update(cx, |pane, cx| {
 1811                window.focus(&pane.focus_handle(cx));
 1812                loop {
 1813                    // Retrieve the weak item handle from the history.
 1814                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1815
 1816                    // If the item is still present in this pane, then activate it.
 1817                    if let Some(index) = entry
 1818                        .item
 1819                        .upgrade()
 1820                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1821                    {
 1822                        let prev_active_item_index = pane.active_item_index();
 1823                        pane.nav_history_mut().set_mode(mode);
 1824                        pane.activate_item(index, true, true, window, cx);
 1825                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1826
 1827                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1828                        if let Some(data) = entry.data {
 1829                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1830                        }
 1831
 1832                        if navigated {
 1833                            break None;
 1834                        }
 1835                    } else {
 1836                        // If the item is no longer present in this pane, then retrieve its
 1837                        // path info in order to reopen it.
 1838                        break pane
 1839                            .nav_history()
 1840                            .path_for_item(entry.item.id())
 1841                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1842                    }
 1843                }
 1844            })
 1845        } else {
 1846            None
 1847        };
 1848
 1849        if let Some((project_path, abs_path, entry)) = to_load {
 1850            // If the item was no longer present, then load it again from its previous path, first try the local path
 1851            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1852
 1853            cx.spawn_in(window, async move  |workspace, cx| {
 1854                let open_by_project_path = open_by_project_path.await;
 1855                let mut navigated = false;
 1856                match open_by_project_path
 1857                    .with_context(|| format!("Navigating to {project_path:?}"))
 1858                {
 1859                    Ok((project_entry_id, build_item)) => {
 1860                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1861                            pane.nav_history_mut().set_mode(mode);
 1862                            pane.active_item().map(|p| p.item_id())
 1863                        })?;
 1864
 1865                        pane.update_in(cx, |pane, window, cx| {
 1866                            let item = pane.open_item(
 1867                                project_entry_id,
 1868                                project_path,
 1869                                true,
 1870                                entry.is_preview,
 1871                                true,
 1872                                None,
 1873                                window, cx,
 1874                                build_item,
 1875                            );
 1876                            navigated |= Some(item.item_id()) != prev_active_item_id;
 1877                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1878                            if let Some(data) = entry.data {
 1879                                navigated |= item.navigate(data, window, cx);
 1880                            }
 1881                        })?;
 1882                    }
 1883                    Err(open_by_project_path_e) => {
 1884                        // Fall back to opening by abs path, in case an external file was opened and closed,
 1885                        // and its worktree is now dropped
 1886                        if let Some(abs_path) = abs_path {
 1887                            let prev_active_item_id = pane.update(cx, |pane, _| {
 1888                                pane.nav_history_mut().set_mode(mode);
 1889                                pane.active_item().map(|p| p.item_id())
 1890                            })?;
 1891                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 1892                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 1893                            })?;
 1894                            match open_by_abs_path
 1895                                .await
 1896                                .with_context(|| format!("Navigating to {abs_path:?}"))
 1897                            {
 1898                                Ok(item) => {
 1899                                    pane.update_in(cx, |pane, window, cx| {
 1900                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 1901                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1902                                        if let Some(data) = entry.data {
 1903                                            navigated |= item.navigate(data, window, cx);
 1904                                        }
 1905                                    })?;
 1906                                }
 1907                                Err(open_by_abs_path_e) => {
 1908                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 1909                                }
 1910                            }
 1911                        }
 1912                    }
 1913                }
 1914
 1915                if !navigated {
 1916                    workspace
 1917                        .update_in(cx, |workspace, window, cx| {
 1918                            Self::navigate_history(workspace, pane, mode, window, cx)
 1919                        })?
 1920                        .await?;
 1921                }
 1922
 1923                Ok(())
 1924            })
 1925        } else {
 1926            Task::ready(Ok(()))
 1927        }
 1928    }
 1929
 1930    pub fn go_back(
 1931        &mut self,
 1932        pane: WeakEntity<Pane>,
 1933        window: &mut Window,
 1934        cx: &mut Context<Workspace>,
 1935    ) -> Task<Result<()>> {
 1936        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 1937    }
 1938
 1939    pub fn go_forward(
 1940        &mut self,
 1941        pane: WeakEntity<Pane>,
 1942        window: &mut Window,
 1943        cx: &mut Context<Workspace>,
 1944    ) -> Task<Result<()>> {
 1945        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 1946    }
 1947
 1948    pub fn reopen_closed_item(
 1949        &mut self,
 1950        window: &mut Window,
 1951        cx: &mut Context<Workspace>,
 1952    ) -> Task<Result<()>> {
 1953        self.navigate_history(
 1954            self.active_pane().downgrade(),
 1955            NavigationMode::ReopeningClosedItem,
 1956            window,
 1957            cx,
 1958        )
 1959    }
 1960
 1961    pub fn client(&self) -> &Arc<Client> {
 1962        &self.app_state.client
 1963    }
 1964
 1965    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 1966        self.titlebar_item = Some(item);
 1967        cx.notify();
 1968    }
 1969
 1970    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 1971        self.on_prompt_for_new_path = Some(prompt)
 1972    }
 1973
 1974    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 1975        self.on_prompt_for_open_path = Some(prompt)
 1976    }
 1977
 1978    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 1979        self.terminal_provider = Some(Box::new(provider));
 1980    }
 1981
 1982    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 1983        self.debugger_provider = Some(Arc::new(provider));
 1984    }
 1985
 1986    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 1987        self.debugger_provider.clone()
 1988    }
 1989
 1990    pub fn serialized_ssh_project(&self) -> Option<SerializedSshProject> {
 1991        self.serialized_ssh_project.clone()
 1992    }
 1993
 1994    pub fn set_serialized_ssh_project(&mut self, serialized_ssh_project: SerializedSshProject) {
 1995        self.serialized_ssh_project = Some(serialized_ssh_project);
 1996    }
 1997
 1998    pub fn prompt_for_open_path(
 1999        &mut self,
 2000        path_prompt_options: PathPromptOptions,
 2001        lister: DirectoryLister,
 2002        window: &mut Window,
 2003        cx: &mut Context<Self>,
 2004    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2005        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2006            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2007            let rx = prompt(self, lister, window, cx);
 2008            self.on_prompt_for_open_path = Some(prompt);
 2009            rx
 2010        } else {
 2011            let (tx, rx) = oneshot::channel();
 2012            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2013
 2014            cx.spawn_in(window, async move |workspace, cx| {
 2015                let Ok(result) = abs_path.await else {
 2016                    return Ok(());
 2017                };
 2018
 2019                match result {
 2020                    Ok(result) => {
 2021                        tx.send(result).ok();
 2022                    }
 2023                    Err(err) => {
 2024                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2025                            workspace.show_portal_error(err.to_string(), cx);
 2026                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2027                            let rx = prompt(workspace, lister, window, cx);
 2028                            workspace.on_prompt_for_open_path = Some(prompt);
 2029                            rx
 2030                        })?;
 2031                        if let Ok(path) = rx.await {
 2032                            tx.send(path).ok();
 2033                        }
 2034                    }
 2035                };
 2036                anyhow::Ok(())
 2037            })
 2038            .detach();
 2039
 2040            rx
 2041        }
 2042    }
 2043
 2044    pub fn prompt_for_new_path(
 2045        &mut self,
 2046        lister: DirectoryLister,
 2047        window: &mut Window,
 2048        cx: &mut Context<Self>,
 2049    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2050        if self.project.read(cx).is_via_collab()
 2051            || self.project.read(cx).is_via_ssh()
 2052            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2053        {
 2054            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2055            let rx = prompt(self, lister, window, cx);
 2056            self.on_prompt_for_new_path = Some(prompt);
 2057            return rx;
 2058        }
 2059
 2060        let (tx, rx) = oneshot::channel();
 2061        cx.spawn_in(window, async move |workspace, cx| {
 2062            let abs_path = workspace.update(cx, |workspace, cx| {
 2063                let relative_to = workspace
 2064                    .most_recent_active_path(cx)
 2065                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2066                    .or_else(|| {
 2067                        let project = workspace.project.read(cx);
 2068                        project.visible_worktrees(cx).find_map(|worktree| {
 2069                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2070                        })
 2071                    })
 2072                    .or_else(std::env::home_dir)
 2073                    .unwrap_or_else(|| PathBuf::from(""));
 2074                cx.prompt_for_new_path(&relative_to)
 2075            })?;
 2076            let abs_path = match abs_path.await? {
 2077                Ok(path) => path,
 2078                Err(err) => {
 2079                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2080                        workspace.show_portal_error(err.to_string(), cx);
 2081
 2082                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2083                        let rx = prompt(workspace, lister, window, cx);
 2084                        workspace.on_prompt_for_new_path = Some(prompt);
 2085                        rx
 2086                    })?;
 2087                    if let Ok(path) = rx.await {
 2088                        tx.send(path).ok();
 2089                    }
 2090                    return anyhow::Ok(());
 2091                }
 2092            };
 2093
 2094            tx.send(abs_path.map(|path| vec![path])).ok();
 2095            anyhow::Ok(())
 2096        })
 2097        .detach();
 2098
 2099        rx
 2100    }
 2101
 2102    pub fn titlebar_item(&self) -> Option<AnyView> {
 2103        self.titlebar_item.clone()
 2104    }
 2105
 2106    /// Call the given callback with a workspace whose project is local.
 2107    ///
 2108    /// If the given workspace has a local project, then it will be passed
 2109    /// to the callback. Otherwise, a new empty window will be created.
 2110    pub fn with_local_workspace<T, F>(
 2111        &mut self,
 2112        window: &mut Window,
 2113        cx: &mut Context<Self>,
 2114        callback: F,
 2115    ) -> Task<Result<T>>
 2116    where
 2117        T: 'static,
 2118        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2119    {
 2120        if self.project.read(cx).is_local() {
 2121            Task::ready(Ok(callback(self, window, cx)))
 2122        } else {
 2123            let env = self.project.read(cx).cli_environment(cx);
 2124            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2125            cx.spawn_in(window, async move |_vh, cx| {
 2126                let (workspace, _) = task.await?;
 2127                workspace.update(cx, callback)
 2128            })
 2129        }
 2130    }
 2131
 2132    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2133        self.project.read(cx).worktrees(cx)
 2134    }
 2135
 2136    pub fn visible_worktrees<'a>(
 2137        &self,
 2138        cx: &'a App,
 2139    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2140        self.project.read(cx).visible_worktrees(cx)
 2141    }
 2142
 2143    #[cfg(any(test, feature = "test-support"))]
 2144    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2145        let futures = self
 2146            .worktrees(cx)
 2147            .filter_map(|worktree| worktree.read(cx).as_local())
 2148            .map(|worktree| worktree.scan_complete())
 2149            .collect::<Vec<_>>();
 2150        async move {
 2151            for future in futures {
 2152                future.await;
 2153            }
 2154        }
 2155    }
 2156
 2157    pub fn close_global(_: &CloseWindow, cx: &mut App) {
 2158        cx.defer(|cx| {
 2159            cx.windows().iter().find(|window| {
 2160                window
 2161                    .update(cx, |_, window, _| {
 2162                        if window.is_window_active() {
 2163                            //This can only get called when the window's project connection has been lost
 2164                            //so we don't need to prompt the user for anything and instead just close the window
 2165                            window.remove_window();
 2166                            true
 2167                        } else {
 2168                            false
 2169                        }
 2170                    })
 2171                    .unwrap_or(false)
 2172            });
 2173        });
 2174    }
 2175
 2176    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2177        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2178        cx.spawn_in(window, async move |_, cx| {
 2179            if prepare.await? {
 2180                cx.update(|window, _cx| window.remove_window())?;
 2181            }
 2182            anyhow::Ok(())
 2183        })
 2184        .detach_and_log_err(cx)
 2185    }
 2186
 2187    pub fn move_focused_panel_to_next_position(
 2188        &mut self,
 2189        _: &MoveFocusedPanelToNextPosition,
 2190        window: &mut Window,
 2191        cx: &mut Context<Self>,
 2192    ) {
 2193        let docks = self.all_docks();
 2194        let active_dock = docks
 2195            .into_iter()
 2196            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2197
 2198        if let Some(dock) = active_dock {
 2199            dock.update(cx, |dock, cx| {
 2200                let active_panel = dock
 2201                    .active_panel()
 2202                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2203
 2204                if let Some(panel) = active_panel {
 2205                    panel.move_to_next_position(window, cx);
 2206                }
 2207            })
 2208        }
 2209    }
 2210
 2211    pub fn prepare_to_close(
 2212        &mut self,
 2213        close_intent: CloseIntent,
 2214        window: &mut Window,
 2215        cx: &mut Context<Self>,
 2216    ) -> Task<Result<bool>> {
 2217        let active_call = self.active_call().cloned();
 2218
 2219        // On Linux and Windows, closing the last window should restore the last workspace.
 2220        let save_last_workspace = cfg!(not(target_os = "macos"))
 2221            && close_intent != CloseIntent::ReplaceWindow
 2222            && cx.windows().len() == 1;
 2223
 2224        cx.spawn_in(window, async move |this, cx| {
 2225            let workspace_count = cx.update(|_window, cx| {
 2226                cx.windows()
 2227                    .iter()
 2228                    .filter(|window| window.downcast::<Workspace>().is_some())
 2229                    .count()
 2230            })?;
 2231
 2232            if let Some(active_call) = active_call {
 2233                if close_intent != CloseIntent::Quit
 2234                    && workspace_count == 1
 2235                    && active_call.read_with(cx, |call, _| call.room().is_some())?
 2236                {
 2237                    let answer = cx.update(|window, cx| {
 2238                        window.prompt(
 2239                            PromptLevel::Warning,
 2240                            "Do you want to leave the current call?",
 2241                            None,
 2242                            &["Close window and hang up", "Cancel"],
 2243                            cx,
 2244                        )
 2245                    })?;
 2246
 2247                    if answer.await.log_err() == Some(1) {
 2248                        return anyhow::Ok(false);
 2249                    } else {
 2250                        active_call
 2251                            .update(cx, |call, cx| call.hang_up(cx))?
 2252                            .await
 2253                            .log_err();
 2254                    }
 2255                }
 2256            }
 2257
 2258            let save_result = this
 2259                .update_in(cx, |this, window, cx| {
 2260                    this.save_all_internal(SaveIntent::Close, window, cx)
 2261                })?
 2262                .await;
 2263
 2264            // If we're not quitting, but closing, we remove the workspace from
 2265            // the current session.
 2266            if close_intent != CloseIntent::Quit
 2267                && !save_last_workspace
 2268                && save_result.as_ref().map_or(false, |&res| res)
 2269            {
 2270                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2271                    .await;
 2272            }
 2273
 2274            save_result
 2275        })
 2276    }
 2277
 2278    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2279        self.save_all_internal(
 2280            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2281            window,
 2282            cx,
 2283        )
 2284        .detach_and_log_err(cx);
 2285    }
 2286
 2287    fn send_keystrokes(
 2288        &mut self,
 2289        action: &SendKeystrokes,
 2290        window: &mut Window,
 2291        cx: &mut Context<Self>,
 2292    ) {
 2293        let mut state = self.dispatching_keystrokes.borrow_mut();
 2294        if !state.0.insert(action.0.clone()) {
 2295            cx.propagate();
 2296            return;
 2297        }
 2298        let mut keystrokes: Vec<Keystroke> = action
 2299            .0
 2300            .split(' ')
 2301            .flat_map(|k| Keystroke::parse(k).log_err())
 2302            .collect();
 2303        keystrokes.reverse();
 2304
 2305        state.1.append(&mut keystrokes);
 2306        drop(state);
 2307
 2308        let keystrokes = self.dispatching_keystrokes.clone();
 2309        window
 2310            .spawn(cx, async move |cx| {
 2311                // limit to 100 keystrokes to avoid infinite recursion.
 2312                for _ in 0..100 {
 2313                    let Some(keystroke) = keystrokes.borrow_mut().1.pop() else {
 2314                        keystrokes.borrow_mut().0.clear();
 2315                        return Ok(());
 2316                    };
 2317                    cx.update(|window, cx| {
 2318                        let focused = window.focused(cx);
 2319                        window.dispatch_keystroke(keystroke.clone(), cx);
 2320                        if window.focused(cx) != focused {
 2321                            // dispatch_keystroke may cause the focus to change.
 2322                            // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2323                            // And we need that to happen before the next keystroke to keep vim mode happy...
 2324                            // (Note that the tests always do this implicitly, so you must manually test with something like:
 2325                            //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2326                            // )
 2327                            window.draw(cx).clear();
 2328                        }
 2329                    })?;
 2330                }
 2331
 2332                *keystrokes.borrow_mut() = Default::default();
 2333                anyhow::bail!("over 100 keystrokes passed to send_keystrokes");
 2334            })
 2335            .detach_and_log_err(cx);
 2336    }
 2337
 2338    fn save_all_internal(
 2339        &mut self,
 2340        mut save_intent: SaveIntent,
 2341        window: &mut Window,
 2342        cx: &mut Context<Self>,
 2343    ) -> Task<Result<bool>> {
 2344        if self.project.read(cx).is_disconnected(cx) {
 2345            return Task::ready(Ok(true));
 2346        }
 2347        let dirty_items = self
 2348            .panes
 2349            .iter()
 2350            .flat_map(|pane| {
 2351                pane.read(cx).items().filter_map(|item| {
 2352                    if item.is_dirty(cx) {
 2353                        item.tab_content_text(0, cx);
 2354                        Some((pane.downgrade(), item.boxed_clone()))
 2355                    } else {
 2356                        None
 2357                    }
 2358                })
 2359            })
 2360            .collect::<Vec<_>>();
 2361
 2362        let project = self.project.clone();
 2363        cx.spawn_in(window, async move |workspace, cx| {
 2364            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2365                let (serialize_tasks, remaining_dirty_items) =
 2366                    workspace.update_in(cx, |workspace, window, cx| {
 2367                        let mut remaining_dirty_items = Vec::new();
 2368                        let mut serialize_tasks = Vec::new();
 2369                        for (pane, item) in dirty_items {
 2370                            if let Some(task) = item
 2371                                .to_serializable_item_handle(cx)
 2372                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2373                            {
 2374                                serialize_tasks.push(task);
 2375                            } else {
 2376                                remaining_dirty_items.push((pane, item));
 2377                            }
 2378                        }
 2379                        (serialize_tasks, remaining_dirty_items)
 2380                    })?;
 2381
 2382                futures::future::try_join_all(serialize_tasks).await?;
 2383
 2384                if remaining_dirty_items.len() > 1 {
 2385                    let answer = workspace.update_in(cx, |_, window, cx| {
 2386                        let detail = Pane::file_names_for_prompt(
 2387                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2388                            cx,
 2389                        );
 2390                        window.prompt(
 2391                            PromptLevel::Warning,
 2392                            &"Do you want to save all changes in the following files?",
 2393                            Some(&detail),
 2394                            &["Save all", "Discard all", "Cancel"],
 2395                            cx,
 2396                        )
 2397                    })?;
 2398                    match answer.await.log_err() {
 2399                        Some(0) => save_intent = SaveIntent::SaveAll,
 2400                        Some(1) => save_intent = SaveIntent::Skip,
 2401                        Some(2) => return Ok(false),
 2402                        _ => {}
 2403                    }
 2404                }
 2405
 2406                remaining_dirty_items
 2407            } else {
 2408                dirty_items
 2409            };
 2410
 2411            for (pane, item) in dirty_items {
 2412                let (singleton, project_entry_ids) =
 2413                    cx.update(|_, cx| (item.is_singleton(cx), item.project_entry_ids(cx)))?;
 2414                if singleton || !project_entry_ids.is_empty() {
 2415                    if !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await? {
 2416                        return Ok(false);
 2417                    }
 2418                }
 2419            }
 2420            Ok(true)
 2421        })
 2422    }
 2423
 2424    pub fn open_workspace_for_paths(
 2425        &mut self,
 2426        replace_current_window: bool,
 2427        paths: Vec<PathBuf>,
 2428        window: &mut Window,
 2429        cx: &mut Context<Self>,
 2430    ) -> Task<Result<()>> {
 2431        let window_handle = window.window_handle().downcast::<Self>();
 2432        let is_remote = self.project.read(cx).is_via_collab();
 2433        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2434        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2435
 2436        let window_to_replace = if replace_current_window {
 2437            window_handle
 2438        } else if is_remote || has_worktree || has_dirty_items {
 2439            None
 2440        } else {
 2441            window_handle
 2442        };
 2443        let app_state = self.app_state.clone();
 2444
 2445        cx.spawn(async move |_, cx| {
 2446            cx.update(|cx| {
 2447                open_paths(
 2448                    &paths,
 2449                    app_state,
 2450                    OpenOptions {
 2451                        replace_window: window_to_replace,
 2452                        ..Default::default()
 2453                    },
 2454                    cx,
 2455                )
 2456            })?
 2457            .await?;
 2458            Ok(())
 2459        })
 2460    }
 2461
 2462    #[allow(clippy::type_complexity)]
 2463    pub fn open_paths(
 2464        &mut self,
 2465        mut abs_paths: Vec<PathBuf>,
 2466        options: OpenOptions,
 2467        pane: Option<WeakEntity<Pane>>,
 2468        window: &mut Window,
 2469        cx: &mut Context<Self>,
 2470    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2471        log::info!("open paths {abs_paths:?}");
 2472
 2473        let fs = self.app_state.fs.clone();
 2474
 2475        // Sort the paths to ensure we add worktrees for parents before their children.
 2476        abs_paths.sort_unstable();
 2477        cx.spawn_in(window, async move |this, cx| {
 2478            let mut tasks = Vec::with_capacity(abs_paths.len());
 2479
 2480            for abs_path in &abs_paths {
 2481                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2482                    OpenVisible::All => Some(true),
 2483                    OpenVisible::None => Some(false),
 2484                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2485                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2486                        Some(None) => Some(true),
 2487                        None => None,
 2488                    },
 2489                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2490                        Some(Some(metadata)) => Some(metadata.is_dir),
 2491                        Some(None) => Some(false),
 2492                        None => None,
 2493                    },
 2494                };
 2495                let project_path = match visible {
 2496                    Some(visible) => match this
 2497                        .update(cx, |this, cx| {
 2498                            Workspace::project_path_for_path(
 2499                                this.project.clone(),
 2500                                abs_path,
 2501                                visible,
 2502                                cx,
 2503                            )
 2504                        })
 2505                        .log_err()
 2506                    {
 2507                        Some(project_path) => project_path.await.log_err(),
 2508                        None => None,
 2509                    },
 2510                    None => None,
 2511                };
 2512
 2513                let this = this.clone();
 2514                let abs_path: Arc<Path> = SanitizedPath::from(abs_path.clone()).into();
 2515                let fs = fs.clone();
 2516                let pane = pane.clone();
 2517                let task = cx.spawn(async move |cx| {
 2518                    let (worktree, project_path) = project_path?;
 2519                    if fs.is_dir(&abs_path).await {
 2520                        this.update(cx, |workspace, cx| {
 2521                            let worktree = worktree.read(cx);
 2522                            let worktree_abs_path = worktree.abs_path();
 2523                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2524                                worktree.root_entry()
 2525                            } else {
 2526                                abs_path
 2527                                    .strip_prefix(worktree_abs_path.as_ref())
 2528                                    .ok()
 2529                                    .and_then(|relative_path| {
 2530                                        worktree.entry_for_path(relative_path)
 2531                                    })
 2532                            }
 2533                            .map(|entry| entry.id);
 2534                            if let Some(entry_id) = entry_id {
 2535                                workspace.project.update(cx, |_, cx| {
 2536                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2537                                })
 2538                            }
 2539                        })
 2540                        .ok()?;
 2541                        None
 2542                    } else {
 2543                        Some(
 2544                            this.update_in(cx, |this, window, cx| {
 2545                                this.open_path(
 2546                                    project_path,
 2547                                    pane,
 2548                                    options.focus.unwrap_or(true),
 2549                                    window,
 2550                                    cx,
 2551                                )
 2552                            })
 2553                            .ok()?
 2554                            .await,
 2555                        )
 2556                    }
 2557                });
 2558                tasks.push(task);
 2559            }
 2560
 2561            futures::future::join_all(tasks).await
 2562        })
 2563    }
 2564
 2565    pub fn open_resolved_path(
 2566        &mut self,
 2567        path: ResolvedPath,
 2568        window: &mut Window,
 2569        cx: &mut Context<Self>,
 2570    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2571        match path {
 2572            ResolvedPath::ProjectPath { project_path, .. } => {
 2573                self.open_path(project_path, None, true, window, cx)
 2574            }
 2575            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2576                path,
 2577                OpenOptions {
 2578                    visible: Some(OpenVisible::None),
 2579                    ..Default::default()
 2580                },
 2581                window,
 2582                cx,
 2583            ),
 2584        }
 2585    }
 2586
 2587    pub fn absolute_path_of_worktree(
 2588        &self,
 2589        worktree_id: WorktreeId,
 2590        cx: &mut Context<Self>,
 2591    ) -> Option<PathBuf> {
 2592        self.project
 2593            .read(cx)
 2594            .worktree_for_id(worktree_id, cx)
 2595            // TODO: use `abs_path` or `root_dir`
 2596            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2597    }
 2598
 2599    fn add_folder_to_project(
 2600        &mut self,
 2601        _: &AddFolderToProject,
 2602        window: &mut Window,
 2603        cx: &mut Context<Self>,
 2604    ) {
 2605        let project = self.project.read(cx);
 2606        if project.is_via_collab() {
 2607            self.show_error(
 2608                &anyhow!("You cannot add folders to someone else's project"),
 2609                cx,
 2610            );
 2611            return;
 2612        }
 2613        let paths = self.prompt_for_open_path(
 2614            PathPromptOptions {
 2615                files: false,
 2616                directories: true,
 2617                multiple: true,
 2618            },
 2619            DirectoryLister::Project(self.project.clone()),
 2620            window,
 2621            cx,
 2622        );
 2623        cx.spawn_in(window, async move |this, cx| {
 2624            if let Some(paths) = paths.await.log_err().flatten() {
 2625                let results = this
 2626                    .update_in(cx, |this, window, cx| {
 2627                        this.open_paths(
 2628                            paths,
 2629                            OpenOptions {
 2630                                visible: Some(OpenVisible::All),
 2631                                ..Default::default()
 2632                            },
 2633                            None,
 2634                            window,
 2635                            cx,
 2636                        )
 2637                    })?
 2638                    .await;
 2639                for result in results.into_iter().flatten() {
 2640                    result.log_err();
 2641                }
 2642            }
 2643            anyhow::Ok(())
 2644        })
 2645        .detach_and_log_err(cx);
 2646    }
 2647
 2648    pub fn project_path_for_path(
 2649        project: Entity<Project>,
 2650        abs_path: &Path,
 2651        visible: bool,
 2652        cx: &mut App,
 2653    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2654        let entry = project.update(cx, |project, cx| {
 2655            project.find_or_create_worktree(abs_path, visible, cx)
 2656        });
 2657        cx.spawn(async move |cx| {
 2658            let (worktree, path) = entry.await?;
 2659            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2660            Ok((
 2661                worktree,
 2662                ProjectPath {
 2663                    worktree_id,
 2664                    path: path.into(),
 2665                },
 2666            ))
 2667        })
 2668    }
 2669
 2670    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2671        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2672    }
 2673
 2674    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2675        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2676    }
 2677
 2678    pub fn items_of_type<'a, T: Item>(
 2679        &'a self,
 2680        cx: &'a App,
 2681    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2682        self.panes
 2683            .iter()
 2684            .flat_map(|pane| pane.read(cx).items_of_type())
 2685    }
 2686
 2687    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2688        self.active_pane().read(cx).active_item()
 2689    }
 2690
 2691    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2692        let item = self.active_item(cx)?;
 2693        item.to_any().downcast::<I>().ok()
 2694    }
 2695
 2696    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2697        self.active_item(cx).and_then(|item| item.project_path(cx))
 2698    }
 2699
 2700    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2701        self.recent_navigation_history_iter(cx)
 2702            .filter_map(|(path, abs_path)| {
 2703                let worktree = self
 2704                    .project
 2705                    .read(cx)
 2706                    .worktree_for_id(path.worktree_id, cx)?;
 2707                if worktree.read(cx).is_visible() {
 2708                    abs_path
 2709                } else {
 2710                    None
 2711                }
 2712            })
 2713            .next()
 2714    }
 2715
 2716    pub fn save_active_item(
 2717        &mut self,
 2718        save_intent: SaveIntent,
 2719        window: &mut Window,
 2720        cx: &mut App,
 2721    ) -> Task<Result<()>> {
 2722        let project = self.project.clone();
 2723        let pane = self.active_pane();
 2724        let item = pane.read(cx).active_item();
 2725        let pane = pane.downgrade();
 2726
 2727        window.spawn(cx, async move |mut cx| {
 2728            if let Some(item) = item {
 2729                Pane::save_item(project, &pane, item.as_ref(), save_intent, &mut cx)
 2730                    .await
 2731                    .map(|_| ())
 2732            } else {
 2733                Ok(())
 2734            }
 2735        })
 2736    }
 2737
 2738    pub fn close_inactive_items_and_panes(
 2739        &mut self,
 2740        action: &CloseInactiveTabsAndPanes,
 2741        window: &mut Window,
 2742        cx: &mut Context<Self>,
 2743    ) {
 2744        if let Some(task) = self.close_all_internal(
 2745            true,
 2746            action.save_intent.unwrap_or(SaveIntent::Close),
 2747            window,
 2748            cx,
 2749        ) {
 2750            task.detach_and_log_err(cx)
 2751        }
 2752    }
 2753
 2754    pub fn close_all_items_and_panes(
 2755        &mut self,
 2756        action: &CloseAllItemsAndPanes,
 2757        window: &mut Window,
 2758        cx: &mut Context<Self>,
 2759    ) {
 2760        if let Some(task) = self.close_all_internal(
 2761            false,
 2762            action.save_intent.unwrap_or(SaveIntent::Close),
 2763            window,
 2764            cx,
 2765        ) {
 2766            task.detach_and_log_err(cx)
 2767        }
 2768    }
 2769
 2770    fn close_all_internal(
 2771        &mut self,
 2772        retain_active_pane: bool,
 2773        save_intent: SaveIntent,
 2774        window: &mut Window,
 2775        cx: &mut Context<Self>,
 2776    ) -> Option<Task<Result<()>>> {
 2777        let current_pane = self.active_pane();
 2778
 2779        let mut tasks = Vec::new();
 2780
 2781        if retain_active_pane {
 2782            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2783                pane.close_inactive_items(
 2784                    &CloseInactiveItems {
 2785                        save_intent: None,
 2786                        close_pinned: false,
 2787                    },
 2788                    window,
 2789                    cx,
 2790                )
 2791            });
 2792
 2793            tasks.push(current_pane_close);
 2794        }
 2795
 2796        for pane in self.panes() {
 2797            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2798                continue;
 2799            }
 2800
 2801            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2802                pane.close_all_items(
 2803                    &CloseAllItems {
 2804                        save_intent: Some(save_intent),
 2805                        close_pinned: false,
 2806                    },
 2807                    window,
 2808                    cx,
 2809                )
 2810            });
 2811
 2812            tasks.push(close_pane_items)
 2813        }
 2814
 2815        if tasks.is_empty() {
 2816            None
 2817        } else {
 2818            Some(cx.spawn_in(window, async move |_, _| {
 2819                for task in tasks {
 2820                    task.await?
 2821                }
 2822                Ok(())
 2823            }))
 2824        }
 2825    }
 2826
 2827    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 2828        self.dock_at_position(position).read(cx).is_open()
 2829    }
 2830
 2831    pub fn toggle_dock(
 2832        &mut self,
 2833        dock_side: DockPosition,
 2834        window: &mut Window,
 2835        cx: &mut Context<Self>,
 2836    ) {
 2837        let dock = self.dock_at_position(dock_side);
 2838        let mut focus_center = false;
 2839        let mut reveal_dock = false;
 2840        dock.update(cx, |dock, cx| {
 2841            let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 2842            let was_visible = dock.is_open() && !other_is_zoomed;
 2843            dock.set_open(!was_visible, window, cx);
 2844
 2845            if dock.active_panel().is_none() {
 2846                let Some(panel_ix) = dock
 2847                    .first_enabled_panel_idx(cx)
 2848                    .log_with_level(log::Level::Info)
 2849                else {
 2850                    return;
 2851                };
 2852                dock.activate_panel(panel_ix, window, cx);
 2853            }
 2854
 2855            if let Some(active_panel) = dock.active_panel() {
 2856                if was_visible {
 2857                    if active_panel
 2858                        .panel_focus_handle(cx)
 2859                        .contains_focused(window, cx)
 2860                    {
 2861                        focus_center = true;
 2862                    }
 2863                } else {
 2864                    let focus_handle = &active_panel.panel_focus_handle(cx);
 2865                    window.focus(focus_handle);
 2866                    reveal_dock = true;
 2867                }
 2868            }
 2869        });
 2870
 2871        if reveal_dock {
 2872            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 2873        }
 2874
 2875        if focus_center {
 2876            self.active_pane
 2877                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 2878        }
 2879
 2880        cx.notify();
 2881        self.serialize_workspace(window, cx);
 2882    }
 2883
 2884    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 2885        self.all_docks().into_iter().find(|&dock| {
 2886            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 2887        })
 2888    }
 2889
 2890    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 2891        if let Some(dock) = self.active_dock(window, cx) {
 2892            dock.update(cx, |dock, cx| {
 2893                dock.set_open(false, window, cx);
 2894            });
 2895            return true;
 2896        }
 2897        false
 2898    }
 2899
 2900    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 2901        for dock in self.all_docks() {
 2902            dock.update(cx, |dock, cx| {
 2903                dock.set_open(false, window, cx);
 2904            });
 2905        }
 2906
 2907        cx.focus_self(window);
 2908        cx.notify();
 2909        self.serialize_workspace(window, cx);
 2910    }
 2911
 2912    /// Transfer focus to the panel of the given type.
 2913    pub fn focus_panel<T: Panel>(
 2914        &mut self,
 2915        window: &mut Window,
 2916        cx: &mut Context<Self>,
 2917    ) -> Option<Entity<T>> {
 2918        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 2919        panel.to_any().downcast().ok()
 2920    }
 2921
 2922    /// Focus the panel of the given type if it isn't already focused. If it is
 2923    /// already focused, then transfer focus back to the workspace center.
 2924    pub fn toggle_panel_focus<T: Panel>(
 2925        &mut self,
 2926        window: &mut Window,
 2927        cx: &mut Context<Self>,
 2928    ) -> bool {
 2929        let mut did_focus_panel = false;
 2930        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 2931            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 2932            did_focus_panel
 2933        });
 2934        did_focus_panel
 2935    }
 2936
 2937    pub fn activate_panel_for_proto_id(
 2938        &mut self,
 2939        panel_id: PanelId,
 2940        window: &mut Window,
 2941        cx: &mut Context<Self>,
 2942    ) -> Option<Arc<dyn PanelHandle>> {
 2943        let mut panel = None;
 2944        for dock in self.all_docks() {
 2945            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 2946                panel = dock.update(cx, |dock, cx| {
 2947                    dock.activate_panel(panel_index, window, cx);
 2948                    dock.set_open(true, window, cx);
 2949                    dock.active_panel().cloned()
 2950                });
 2951                break;
 2952            }
 2953        }
 2954
 2955        if panel.is_some() {
 2956            cx.notify();
 2957            self.serialize_workspace(window, cx);
 2958        }
 2959
 2960        panel
 2961    }
 2962
 2963    /// Focus or unfocus the given panel type, depending on the given callback.
 2964    fn focus_or_unfocus_panel<T: Panel>(
 2965        &mut self,
 2966        window: &mut Window,
 2967        cx: &mut Context<Self>,
 2968        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 2969    ) -> Option<Arc<dyn PanelHandle>> {
 2970        let mut result_panel = None;
 2971        let mut serialize = false;
 2972        for dock in self.all_docks() {
 2973            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 2974                let mut focus_center = false;
 2975                let panel = dock.update(cx, |dock, cx| {
 2976                    dock.activate_panel(panel_index, window, cx);
 2977
 2978                    let panel = dock.active_panel().cloned();
 2979                    if let Some(panel) = panel.as_ref() {
 2980                        if should_focus(&**panel, window, cx) {
 2981                            dock.set_open(true, window, cx);
 2982                            panel.panel_focus_handle(cx).focus(window);
 2983                        } else {
 2984                            focus_center = true;
 2985                        }
 2986                    }
 2987                    panel
 2988                });
 2989
 2990                if focus_center {
 2991                    self.active_pane
 2992                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 2993                }
 2994
 2995                result_panel = panel;
 2996                serialize = true;
 2997                break;
 2998            }
 2999        }
 3000
 3001        if serialize {
 3002            self.serialize_workspace(window, cx);
 3003        }
 3004
 3005        cx.notify();
 3006        result_panel
 3007    }
 3008
 3009    /// Open the panel of the given type
 3010    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3011        for dock in self.all_docks() {
 3012            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3013                dock.update(cx, |dock, cx| {
 3014                    dock.activate_panel(panel_index, window, cx);
 3015                    dock.set_open(true, window, cx);
 3016                });
 3017            }
 3018        }
 3019    }
 3020
 3021    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3022        self.all_docks()
 3023            .iter()
 3024            .find_map(|dock| dock.read(cx).panel::<T>())
 3025    }
 3026
 3027    fn dismiss_zoomed_items_to_reveal(
 3028        &mut self,
 3029        dock_to_reveal: Option<DockPosition>,
 3030        window: &mut Window,
 3031        cx: &mut Context<Self>,
 3032    ) {
 3033        // If a center pane is zoomed, unzoom it.
 3034        for pane in &self.panes {
 3035            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3036                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3037            }
 3038        }
 3039
 3040        // If another dock is zoomed, hide it.
 3041        let mut focus_center = false;
 3042        for dock in self.all_docks() {
 3043            dock.update(cx, |dock, cx| {
 3044                if Some(dock.position()) != dock_to_reveal {
 3045                    if let Some(panel) = dock.active_panel() {
 3046                        if panel.is_zoomed(window, cx) {
 3047                            focus_center |=
 3048                                panel.panel_focus_handle(cx).contains_focused(window, cx);
 3049                            dock.set_open(false, window, cx);
 3050                        }
 3051                    }
 3052                }
 3053            });
 3054        }
 3055
 3056        if focus_center {
 3057            self.active_pane
 3058                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3059        }
 3060
 3061        if self.zoomed_position != dock_to_reveal {
 3062            self.zoomed = None;
 3063            self.zoomed_position = None;
 3064            cx.emit(Event::ZoomChanged);
 3065        }
 3066
 3067        cx.notify();
 3068    }
 3069
 3070    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3071        let pane = cx.new(|cx| {
 3072            let mut pane = Pane::new(
 3073                self.weak_handle(),
 3074                self.project.clone(),
 3075                self.pane_history_timestamp.clone(),
 3076                None,
 3077                NewFile.boxed_clone(),
 3078                window,
 3079                cx,
 3080            );
 3081            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3082            pane
 3083        });
 3084        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3085            .detach();
 3086        self.panes.push(pane.clone());
 3087
 3088        window.focus(&pane.focus_handle(cx));
 3089
 3090        cx.emit(Event::PaneAdded(pane.clone()));
 3091        pane
 3092    }
 3093
 3094    pub fn add_item_to_center(
 3095        &mut self,
 3096        item: Box<dyn ItemHandle>,
 3097        window: &mut Window,
 3098        cx: &mut Context<Self>,
 3099    ) -> bool {
 3100        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3101            if let Some(center_pane) = center_pane.upgrade() {
 3102                center_pane.update(cx, |pane, cx| {
 3103                    pane.add_item(item, true, true, None, window, cx)
 3104                });
 3105                true
 3106            } else {
 3107                false
 3108            }
 3109        } else {
 3110            false
 3111        }
 3112    }
 3113
 3114    pub fn add_item_to_active_pane(
 3115        &mut self,
 3116        item: Box<dyn ItemHandle>,
 3117        destination_index: Option<usize>,
 3118        focus_item: bool,
 3119        window: &mut Window,
 3120        cx: &mut App,
 3121    ) {
 3122        self.add_item(
 3123            self.active_pane.clone(),
 3124            item,
 3125            destination_index,
 3126            false,
 3127            focus_item,
 3128            window,
 3129            cx,
 3130        )
 3131    }
 3132
 3133    pub fn add_item(
 3134        &mut self,
 3135        pane: Entity<Pane>,
 3136        item: Box<dyn ItemHandle>,
 3137        destination_index: Option<usize>,
 3138        activate_pane: bool,
 3139        focus_item: bool,
 3140        window: &mut Window,
 3141        cx: &mut App,
 3142    ) {
 3143        if let Some(text) = item.telemetry_event_text(cx) {
 3144            telemetry::event!(text);
 3145        }
 3146
 3147        pane.update(cx, |pane, cx| {
 3148            pane.add_item(
 3149                item,
 3150                activate_pane,
 3151                focus_item,
 3152                destination_index,
 3153                window,
 3154                cx,
 3155            )
 3156        });
 3157    }
 3158
 3159    pub fn split_item(
 3160        &mut self,
 3161        split_direction: SplitDirection,
 3162        item: Box<dyn ItemHandle>,
 3163        window: &mut Window,
 3164        cx: &mut Context<Self>,
 3165    ) {
 3166        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3167        self.add_item(new_pane, item, None, true, true, window, cx);
 3168    }
 3169
 3170    pub fn open_abs_path(
 3171        &mut self,
 3172        abs_path: PathBuf,
 3173        options: OpenOptions,
 3174        window: &mut Window,
 3175        cx: &mut Context<Self>,
 3176    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3177        cx.spawn_in(window, async move |workspace, cx| {
 3178            let open_paths_task_result = workspace
 3179                .update_in(cx, |workspace, window, cx| {
 3180                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3181                })
 3182                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3183                .await;
 3184            anyhow::ensure!(
 3185                open_paths_task_result.len() == 1,
 3186                "open abs path {abs_path:?} task returned incorrect number of results"
 3187            );
 3188            match open_paths_task_result
 3189                .into_iter()
 3190                .next()
 3191                .expect("ensured single task result")
 3192            {
 3193                Some(open_result) => {
 3194                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3195                }
 3196                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3197            }
 3198        })
 3199    }
 3200
 3201    pub fn split_abs_path(
 3202        &mut self,
 3203        abs_path: PathBuf,
 3204        visible: bool,
 3205        window: &mut Window,
 3206        cx: &mut Context<Self>,
 3207    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3208        let project_path_task =
 3209            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3210        cx.spawn_in(window, async move |this, cx| {
 3211            let (_, path) = project_path_task.await?;
 3212            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3213                .await
 3214        })
 3215    }
 3216
 3217    pub fn open_path(
 3218        &mut self,
 3219        path: impl Into<ProjectPath>,
 3220        pane: Option<WeakEntity<Pane>>,
 3221        focus_item: bool,
 3222        window: &mut Window,
 3223        cx: &mut App,
 3224    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3225        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3226    }
 3227
 3228    pub fn open_path_preview(
 3229        &mut self,
 3230        path: impl Into<ProjectPath>,
 3231        pane: Option<WeakEntity<Pane>>,
 3232        focus_item: bool,
 3233        allow_preview: bool,
 3234        activate: bool,
 3235        window: &mut Window,
 3236        cx: &mut App,
 3237    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3238        let pane = pane.unwrap_or_else(|| {
 3239            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3240                self.panes
 3241                    .first()
 3242                    .expect("There must be an active pane")
 3243                    .downgrade()
 3244            })
 3245        });
 3246
 3247        let project_path = path.into();
 3248        let task = self.load_path(project_path.clone(), window, cx);
 3249        window.spawn(cx, async move |cx| {
 3250            let (project_entry_id, build_item) = task.await?;
 3251            let result = pane.update_in(cx, |pane, window, cx| {
 3252                pane.open_item(
 3253                    project_entry_id,
 3254                    project_path,
 3255                    focus_item,
 3256                    allow_preview,
 3257                    activate,
 3258                    None,
 3259                    window,
 3260                    cx,
 3261                    build_item,
 3262                )
 3263            });
 3264            result
 3265        })
 3266    }
 3267
 3268    pub fn split_path(
 3269        &mut self,
 3270        path: impl Into<ProjectPath>,
 3271        window: &mut Window,
 3272        cx: &mut Context<Self>,
 3273    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3274        self.split_path_preview(path, false, None, window, cx)
 3275    }
 3276
 3277    pub fn split_path_preview(
 3278        &mut self,
 3279        path: impl Into<ProjectPath>,
 3280        allow_preview: bool,
 3281        split_direction: Option<SplitDirection>,
 3282        window: &mut Window,
 3283        cx: &mut Context<Self>,
 3284    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3285        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3286            self.panes
 3287                .first()
 3288                .expect("There must be an active pane")
 3289                .downgrade()
 3290        });
 3291
 3292        if let Member::Pane(center_pane) = &self.center.root {
 3293            if center_pane.read(cx).items_len() == 0 {
 3294                return self.open_path(path, Some(pane), true, window, cx);
 3295            }
 3296        }
 3297
 3298        let project_path = path.into();
 3299        let task = self.load_path(project_path.clone(), window, cx);
 3300        cx.spawn_in(window, async move |this, cx| {
 3301            let (project_entry_id, build_item) = task.await?;
 3302            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3303                let pane = pane.upgrade()?;
 3304                let new_pane = this.split_pane(
 3305                    pane,
 3306                    split_direction.unwrap_or(SplitDirection::Right),
 3307                    window,
 3308                    cx,
 3309                );
 3310                new_pane.update(cx, |new_pane, cx| {
 3311                    Some(new_pane.open_item(
 3312                        project_entry_id,
 3313                        project_path,
 3314                        true,
 3315                        allow_preview,
 3316                        true,
 3317                        None,
 3318                        window,
 3319                        cx,
 3320                        build_item,
 3321                    ))
 3322                })
 3323            })
 3324            .map(|option| option.context("pane was dropped"))?
 3325        })
 3326    }
 3327
 3328    fn load_path(
 3329        &mut self,
 3330        path: ProjectPath,
 3331        window: &mut Window,
 3332        cx: &mut App,
 3333    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3334        let project = self.project().clone();
 3335        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3336        registry.open_path(&project, &path, window, cx)
 3337    }
 3338
 3339    pub fn find_project_item<T>(
 3340        &self,
 3341        pane: &Entity<Pane>,
 3342        project_item: &Entity<T::Item>,
 3343        cx: &App,
 3344    ) -> Option<Entity<T>>
 3345    where
 3346        T: ProjectItem,
 3347    {
 3348        use project::ProjectItem as _;
 3349        let project_item = project_item.read(cx);
 3350        let entry_id = project_item.entry_id(cx);
 3351        let project_path = project_item.project_path(cx);
 3352
 3353        let mut item = None;
 3354        if let Some(entry_id) = entry_id {
 3355            item = pane.read(cx).item_for_entry(entry_id, cx);
 3356        }
 3357        if item.is_none() {
 3358            if let Some(project_path) = project_path {
 3359                item = pane.read(cx).item_for_path(project_path, cx);
 3360            }
 3361        }
 3362
 3363        item.and_then(|item| item.downcast::<T>())
 3364    }
 3365
 3366    pub fn is_project_item_open<T>(
 3367        &self,
 3368        pane: &Entity<Pane>,
 3369        project_item: &Entity<T::Item>,
 3370        cx: &App,
 3371    ) -> bool
 3372    where
 3373        T: ProjectItem,
 3374    {
 3375        self.find_project_item::<T>(pane, project_item, cx)
 3376            .is_some()
 3377    }
 3378
 3379    pub fn open_project_item<T>(
 3380        &mut self,
 3381        pane: Entity<Pane>,
 3382        project_item: Entity<T::Item>,
 3383        activate_pane: bool,
 3384        focus_item: bool,
 3385        window: &mut Window,
 3386        cx: &mut Context<Self>,
 3387    ) -> Entity<T>
 3388    where
 3389        T: ProjectItem,
 3390    {
 3391        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3392            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3393            return item;
 3394        }
 3395
 3396        let item = pane.update(cx, |pane, cx| {
 3397            cx.new(|cx| {
 3398                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3399            })
 3400        });
 3401        let item_id = item.item_id();
 3402        let mut destination_index = None;
 3403        pane.update(cx, |pane, cx| {
 3404            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
 3405                if let Some(preview_item_id) = pane.preview_item_id() {
 3406                    if preview_item_id != item_id {
 3407                        destination_index = pane.close_current_preview_item(window, cx);
 3408                    }
 3409                }
 3410            }
 3411            pane.set_preview_item_id(Some(item.item_id()), cx)
 3412        });
 3413
 3414        self.add_item(
 3415            pane,
 3416            Box::new(item.clone()),
 3417            destination_index,
 3418            activate_pane,
 3419            focus_item,
 3420            window,
 3421            cx,
 3422        );
 3423        item
 3424    }
 3425
 3426    pub fn open_shared_screen(
 3427        &mut self,
 3428        peer_id: PeerId,
 3429        window: &mut Window,
 3430        cx: &mut Context<Self>,
 3431    ) {
 3432        if let Some(shared_screen) =
 3433            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3434        {
 3435            self.active_pane.update(cx, |pane, cx| {
 3436                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3437            });
 3438        }
 3439    }
 3440
 3441    pub fn activate_item(
 3442        &mut self,
 3443        item: &dyn ItemHandle,
 3444        activate_pane: bool,
 3445        focus_item: bool,
 3446        window: &mut Window,
 3447        cx: &mut App,
 3448    ) -> bool {
 3449        let result = self.panes.iter().find_map(|pane| {
 3450            pane.read(cx)
 3451                .index_for_item(item)
 3452                .map(|ix| (pane.clone(), ix))
 3453        });
 3454        if let Some((pane, ix)) = result {
 3455            pane.update(cx, |pane, cx| {
 3456                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3457            });
 3458            true
 3459        } else {
 3460            false
 3461        }
 3462    }
 3463
 3464    fn activate_pane_at_index(
 3465        &mut self,
 3466        action: &ActivatePane,
 3467        window: &mut Window,
 3468        cx: &mut Context<Self>,
 3469    ) {
 3470        let panes = self.center.panes();
 3471        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3472            window.focus(&pane.focus_handle(cx));
 3473        } else {
 3474            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx);
 3475        }
 3476    }
 3477
 3478    fn move_item_to_pane_at_index(
 3479        &mut self,
 3480        action: &MoveItemToPane,
 3481        window: &mut Window,
 3482        cx: &mut Context<Self>,
 3483    ) {
 3484        let panes = self.center.panes();
 3485        let destination = match panes.get(action.destination) {
 3486            Some(&destination) => destination.clone(),
 3487            None => {
 3488                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3489                    return;
 3490                }
 3491                let direction = SplitDirection::Right;
 3492                let split_off_pane = self
 3493                    .find_pane_in_direction(direction, cx)
 3494                    .unwrap_or_else(|| self.active_pane.clone());
 3495                let new_pane = self.add_pane(window, cx);
 3496                if self
 3497                    .center
 3498                    .split(&split_off_pane, &new_pane, direction)
 3499                    .log_err()
 3500                    .is_none()
 3501                {
 3502                    return;
 3503                };
 3504                new_pane
 3505            }
 3506        };
 3507
 3508        if action.clone {
 3509            clone_active_item(
 3510                self.database_id(),
 3511                &self.active_pane,
 3512                &destination,
 3513                action.focus,
 3514                window,
 3515                cx,
 3516            )
 3517        } else {
 3518            move_active_item(
 3519                &self.active_pane,
 3520                &destination,
 3521                action.focus,
 3522                true,
 3523                window,
 3524                cx,
 3525            )
 3526        }
 3527    }
 3528
 3529    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3530        let panes = self.center.panes();
 3531        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3532            let next_ix = (ix + 1) % panes.len();
 3533            let next_pane = panes[next_ix].clone();
 3534            window.focus(&next_pane.focus_handle(cx));
 3535        }
 3536    }
 3537
 3538    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3539        let panes = self.center.panes();
 3540        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3541            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3542            let prev_pane = panes[prev_ix].clone();
 3543            window.focus(&prev_pane.focus_handle(cx));
 3544        }
 3545    }
 3546
 3547    pub fn activate_pane_in_direction(
 3548        &mut self,
 3549        direction: SplitDirection,
 3550        window: &mut Window,
 3551        cx: &mut App,
 3552    ) {
 3553        use ActivateInDirectionTarget as Target;
 3554        enum Origin {
 3555            LeftDock,
 3556            RightDock,
 3557            BottomDock,
 3558            Center,
 3559        }
 3560
 3561        let origin: Origin = [
 3562            (&self.left_dock, Origin::LeftDock),
 3563            (&self.right_dock, Origin::RightDock),
 3564            (&self.bottom_dock, Origin::BottomDock),
 3565        ]
 3566        .into_iter()
 3567        .find_map(|(dock, origin)| {
 3568            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3569                Some(origin)
 3570            } else {
 3571                None
 3572            }
 3573        })
 3574        .unwrap_or(Origin::Center);
 3575
 3576        let get_last_active_pane = || {
 3577            let pane = self
 3578                .last_active_center_pane
 3579                .clone()
 3580                .unwrap_or_else(|| {
 3581                    self.panes
 3582                        .first()
 3583                        .expect("There must be an active pane")
 3584                        .downgrade()
 3585                })
 3586                .upgrade()?;
 3587            (pane.read(cx).items_len() != 0).then_some(pane)
 3588        };
 3589
 3590        let try_dock =
 3591            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3592
 3593        let target = match (origin, direction) {
 3594            // We're in the center, so we first try to go to a different pane,
 3595            // otherwise try to go to a dock.
 3596            (Origin::Center, direction) => {
 3597                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3598                    Some(Target::Pane(pane))
 3599                } else {
 3600                    match direction {
 3601                        SplitDirection::Up => None,
 3602                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3603                        SplitDirection::Left => try_dock(&self.left_dock),
 3604                        SplitDirection::Right => try_dock(&self.right_dock),
 3605                    }
 3606                }
 3607            }
 3608
 3609            (Origin::LeftDock, SplitDirection::Right) => {
 3610                if let Some(last_active_pane) = get_last_active_pane() {
 3611                    Some(Target::Pane(last_active_pane))
 3612                } else {
 3613                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3614                }
 3615            }
 3616
 3617            (Origin::LeftDock, SplitDirection::Down)
 3618            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3619
 3620            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3621            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3622            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3623
 3624            (Origin::RightDock, SplitDirection::Left) => {
 3625                if let Some(last_active_pane) = get_last_active_pane() {
 3626                    Some(Target::Pane(last_active_pane))
 3627                } else {
 3628                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3629                }
 3630            }
 3631
 3632            _ => None,
 3633        };
 3634
 3635        match target {
 3636            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3637                let pane = pane.read(cx);
 3638                if let Some(item) = pane.active_item() {
 3639                    item.item_focus_handle(cx).focus(window);
 3640                } else {
 3641                    log::error!(
 3642                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3643                    );
 3644                }
 3645            }
 3646            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3647                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3648                window.defer(cx, move |window, cx| {
 3649                    let dock = dock.read(cx);
 3650                    if let Some(panel) = dock.active_panel() {
 3651                        panel.panel_focus_handle(cx).focus(window);
 3652                    } else {
 3653                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3654                    }
 3655                })
 3656            }
 3657            None => {}
 3658        }
 3659    }
 3660
 3661    pub fn move_item_to_pane_in_direction(
 3662        &mut self,
 3663        action: &MoveItemToPaneInDirection,
 3664        window: &mut Window,
 3665        cx: &mut Context<Self>,
 3666    ) {
 3667        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3668            Some(destination) => destination,
 3669            None => {
 3670                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3671                    return;
 3672                }
 3673                let new_pane = self.add_pane(window, cx);
 3674                if self
 3675                    .center
 3676                    .split(&self.active_pane, &new_pane, action.direction)
 3677                    .log_err()
 3678                    .is_none()
 3679                {
 3680                    return;
 3681                };
 3682                new_pane
 3683            }
 3684        };
 3685
 3686        if action.clone {
 3687            clone_active_item(
 3688                self.database_id(),
 3689                &self.active_pane,
 3690                &destination,
 3691                action.focus,
 3692                window,
 3693                cx,
 3694            )
 3695        } else {
 3696            move_active_item(
 3697                &self.active_pane,
 3698                &destination,
 3699                action.focus,
 3700                true,
 3701                window,
 3702                cx,
 3703            );
 3704        }
 3705    }
 3706
 3707    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3708        self.center.bounding_box_for_pane(pane)
 3709    }
 3710
 3711    pub fn find_pane_in_direction(
 3712        &mut self,
 3713        direction: SplitDirection,
 3714        cx: &App,
 3715    ) -> Option<Entity<Pane>> {
 3716        self.center
 3717            .find_pane_in_direction(&self.active_pane, direction, cx)
 3718            .cloned()
 3719    }
 3720
 3721    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3722        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3723            self.center.swap(&self.active_pane, &to);
 3724            cx.notify();
 3725        }
 3726    }
 3727
 3728    pub fn resize_pane(
 3729        &mut self,
 3730        axis: gpui::Axis,
 3731        amount: Pixels,
 3732        window: &mut Window,
 3733        cx: &mut Context<Self>,
 3734    ) {
 3735        let docks = self.all_docks();
 3736        let active_dock = docks
 3737            .into_iter()
 3738            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3739
 3740        if let Some(dock) = active_dock {
 3741            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3742                return;
 3743            };
 3744            match dock.read(cx).position() {
 3745                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 3746                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 3747                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 3748            }
 3749        } else {
 3750            self.center
 3751                .resize(&self.active_pane, axis, amount, &self.bounds);
 3752        }
 3753        cx.notify();
 3754    }
 3755
 3756    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 3757        self.center.reset_pane_sizes();
 3758        cx.notify();
 3759    }
 3760
 3761    fn handle_pane_focused(
 3762        &mut self,
 3763        pane: Entity<Pane>,
 3764        window: &mut Window,
 3765        cx: &mut Context<Self>,
 3766    ) {
 3767        // This is explicitly hoisted out of the following check for pane identity as
 3768        // terminal panel panes are not registered as a center panes.
 3769        self.status_bar.update(cx, |status_bar, cx| {
 3770            status_bar.set_active_pane(&pane, window, cx);
 3771        });
 3772        if self.active_pane != pane {
 3773            self.set_active_pane(&pane, window, cx);
 3774        }
 3775
 3776        if self.last_active_center_pane.is_none() {
 3777            self.last_active_center_pane = Some(pane.downgrade());
 3778        }
 3779
 3780        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 3781        if pane.read(cx).is_zoomed() {
 3782            self.zoomed = Some(pane.downgrade().into());
 3783        } else {
 3784            self.zoomed = None;
 3785        }
 3786        self.zoomed_position = None;
 3787        cx.emit(Event::ZoomChanged);
 3788        self.update_active_view_for_followers(window, cx);
 3789        pane.update(cx, |pane, _| {
 3790            pane.track_alternate_file_items();
 3791        });
 3792
 3793        cx.notify();
 3794    }
 3795
 3796    fn set_active_pane(
 3797        &mut self,
 3798        pane: &Entity<Pane>,
 3799        window: &mut Window,
 3800        cx: &mut Context<Self>,
 3801    ) {
 3802        self.active_pane = pane.clone();
 3803        self.active_item_path_changed(window, cx);
 3804        self.last_active_center_pane = Some(pane.downgrade());
 3805    }
 3806
 3807    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3808        self.update_active_view_for_followers(window, cx);
 3809    }
 3810
 3811    fn handle_pane_event(
 3812        &mut self,
 3813        pane: &Entity<Pane>,
 3814        event: &pane::Event,
 3815        window: &mut Window,
 3816        cx: &mut Context<Self>,
 3817    ) {
 3818        let mut serialize_workspace = true;
 3819        match event {
 3820            pane::Event::AddItem { item } => {
 3821                item.added_to_pane(self, pane.clone(), window, cx);
 3822                cx.emit(Event::ItemAdded {
 3823                    item: item.boxed_clone(),
 3824                });
 3825            }
 3826            pane::Event::Split(direction) => {
 3827                self.split_and_clone(pane.clone(), *direction, window, cx);
 3828            }
 3829            pane::Event::JoinIntoNext => {
 3830                self.join_pane_into_next(pane.clone(), window, cx);
 3831            }
 3832            pane::Event::JoinAll => {
 3833                self.join_all_panes(window, cx);
 3834            }
 3835            pane::Event::Remove { focus_on_pane } => {
 3836                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 3837            }
 3838            pane::Event::ActivateItem {
 3839                local,
 3840                focus_changed,
 3841            } => {
 3842                cx.on_next_frame(window, |_, window, _| {
 3843                    window.invalidate_character_coordinates();
 3844                });
 3845
 3846                pane.update(cx, |pane, _| {
 3847                    pane.track_alternate_file_items();
 3848                });
 3849                if *local {
 3850                    self.unfollow_in_pane(&pane, window, cx);
 3851                }
 3852                if pane == self.active_pane() {
 3853                    self.active_item_path_changed(window, cx);
 3854                    self.update_active_view_for_followers(window, cx);
 3855                }
 3856                serialize_workspace = *focus_changed || pane != self.active_pane();
 3857            }
 3858            pane::Event::UserSavedItem { item, save_intent } => {
 3859                cx.emit(Event::UserSavedItem {
 3860                    pane: pane.downgrade(),
 3861                    item: item.boxed_clone(),
 3862                    save_intent: *save_intent,
 3863                });
 3864                serialize_workspace = false;
 3865            }
 3866            pane::Event::ChangeItemTitle => {
 3867                if *pane == self.active_pane {
 3868                    self.active_item_path_changed(window, cx);
 3869                }
 3870                serialize_workspace = false;
 3871            }
 3872            pane::Event::RemoveItem { .. } => {}
 3873            pane::Event::RemovedItem { item } => {
 3874                cx.emit(Event::ActiveItemChanged);
 3875                self.update_window_edited(window, cx);
 3876                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id()) {
 3877                    if entry.get().entity_id() == pane.entity_id() {
 3878                        entry.remove();
 3879                    }
 3880                }
 3881            }
 3882            pane::Event::Focus => {
 3883                cx.on_next_frame(window, |_, window, _| {
 3884                    window.invalidate_character_coordinates();
 3885                });
 3886                self.handle_pane_focused(pane.clone(), window, cx);
 3887            }
 3888            pane::Event::ZoomIn => {
 3889                if *pane == self.active_pane {
 3890                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 3891                    if pane.read(cx).has_focus(window, cx) {
 3892                        self.zoomed = Some(pane.downgrade().into());
 3893                        self.zoomed_position = None;
 3894                        cx.emit(Event::ZoomChanged);
 3895                    }
 3896                    cx.notify();
 3897                }
 3898            }
 3899            pane::Event::ZoomOut => {
 3900                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3901                if self.zoomed_position.is_none() {
 3902                    self.zoomed = None;
 3903                    cx.emit(Event::ZoomChanged);
 3904                }
 3905                cx.notify();
 3906            }
 3907            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 3908        }
 3909
 3910        if serialize_workspace {
 3911            self.serialize_workspace(window, cx);
 3912        }
 3913    }
 3914
 3915    pub fn unfollow_in_pane(
 3916        &mut self,
 3917        pane: &Entity<Pane>,
 3918        window: &mut Window,
 3919        cx: &mut Context<Workspace>,
 3920    ) -> Option<CollaboratorId> {
 3921        let leader_id = self.leader_for_pane(pane)?;
 3922        self.unfollow(leader_id, window, cx);
 3923        Some(leader_id)
 3924    }
 3925
 3926    pub fn split_pane(
 3927        &mut self,
 3928        pane_to_split: Entity<Pane>,
 3929        split_direction: SplitDirection,
 3930        window: &mut Window,
 3931        cx: &mut Context<Self>,
 3932    ) -> Entity<Pane> {
 3933        let new_pane = self.add_pane(window, cx);
 3934        self.center
 3935            .split(&pane_to_split, &new_pane, split_direction)
 3936            .unwrap();
 3937        cx.notify();
 3938        new_pane
 3939    }
 3940
 3941    pub fn split_and_clone(
 3942        &mut self,
 3943        pane: Entity<Pane>,
 3944        direction: SplitDirection,
 3945        window: &mut Window,
 3946        cx: &mut Context<Self>,
 3947    ) -> Option<Entity<Pane>> {
 3948        let item = pane.read(cx).active_item()?;
 3949        let maybe_pane_handle =
 3950            if let Some(clone) = item.clone_on_split(self.database_id(), window, cx) {
 3951                let new_pane = self.add_pane(window, cx);
 3952                new_pane.update(cx, |pane, cx| {
 3953                    pane.add_item(clone, true, true, None, window, cx)
 3954                });
 3955                self.center.split(&pane, &new_pane, direction).unwrap();
 3956                Some(new_pane)
 3957            } else {
 3958                None
 3959            };
 3960        cx.notify();
 3961        maybe_pane_handle
 3962    }
 3963
 3964    pub fn split_pane_with_item(
 3965        &mut self,
 3966        pane_to_split: WeakEntity<Pane>,
 3967        split_direction: SplitDirection,
 3968        from: WeakEntity<Pane>,
 3969        item_id_to_move: EntityId,
 3970        window: &mut Window,
 3971        cx: &mut Context<Self>,
 3972    ) {
 3973        let Some(pane_to_split) = pane_to_split.upgrade() else {
 3974            return;
 3975        };
 3976        let Some(from) = from.upgrade() else {
 3977            return;
 3978        };
 3979
 3980        let new_pane = self.add_pane(window, cx);
 3981        move_item(&from, &new_pane, item_id_to_move, 0, true, window, cx);
 3982        self.center
 3983            .split(&pane_to_split, &new_pane, split_direction)
 3984            .unwrap();
 3985        cx.notify();
 3986    }
 3987
 3988    pub fn split_pane_with_project_entry(
 3989        &mut self,
 3990        pane_to_split: WeakEntity<Pane>,
 3991        split_direction: SplitDirection,
 3992        project_entry: ProjectEntryId,
 3993        window: &mut Window,
 3994        cx: &mut Context<Self>,
 3995    ) -> Option<Task<Result<()>>> {
 3996        let pane_to_split = pane_to_split.upgrade()?;
 3997        let new_pane = self.add_pane(window, cx);
 3998        self.center
 3999            .split(&pane_to_split, &new_pane, split_direction)
 4000            .unwrap();
 4001
 4002        let path = self.project.read(cx).path_for_entry(project_entry, cx)?;
 4003        let task = self.open_path(path, Some(new_pane.downgrade()), true, window, cx);
 4004        Some(cx.foreground_executor().spawn(async move {
 4005            task.await?;
 4006            Ok(())
 4007        }))
 4008    }
 4009
 4010    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4011        let active_item = self.active_pane.read(cx).active_item();
 4012        for pane in &self.panes {
 4013            join_pane_into_active(&self.active_pane, pane, window, cx);
 4014        }
 4015        if let Some(active_item) = active_item {
 4016            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4017        }
 4018        cx.notify();
 4019    }
 4020
 4021    pub fn join_pane_into_next(
 4022        &mut self,
 4023        pane: Entity<Pane>,
 4024        window: &mut Window,
 4025        cx: &mut Context<Self>,
 4026    ) {
 4027        let next_pane = self
 4028            .find_pane_in_direction(SplitDirection::Right, cx)
 4029            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4030            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4031            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4032        let Some(next_pane) = next_pane else {
 4033            return;
 4034        };
 4035        move_all_items(&pane, &next_pane, window, cx);
 4036        cx.notify();
 4037    }
 4038
 4039    fn remove_pane(
 4040        &mut self,
 4041        pane: Entity<Pane>,
 4042        focus_on: Option<Entity<Pane>>,
 4043        window: &mut Window,
 4044        cx: &mut Context<Self>,
 4045    ) {
 4046        if self.center.remove(&pane).unwrap() {
 4047            self.force_remove_pane(&pane, &focus_on, window, cx);
 4048            self.unfollow_in_pane(&pane, window, cx);
 4049            self.last_leaders_by_pane.remove(&pane.downgrade());
 4050            for removed_item in pane.read(cx).items() {
 4051                self.panes_by_item.remove(&removed_item.item_id());
 4052            }
 4053
 4054            cx.notify();
 4055        } else {
 4056            self.active_item_path_changed(window, cx);
 4057        }
 4058        cx.emit(Event::PaneRemoved);
 4059    }
 4060
 4061    pub fn panes(&self) -> &[Entity<Pane>] {
 4062        &self.panes
 4063    }
 4064
 4065    pub fn active_pane(&self) -> &Entity<Pane> {
 4066        &self.active_pane
 4067    }
 4068
 4069    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4070        for dock in self.all_docks() {
 4071            if dock.focus_handle(cx).contains_focused(window, cx) {
 4072                if let Some(pane) = dock
 4073                    .read(cx)
 4074                    .active_panel()
 4075                    .and_then(|panel| panel.pane(cx))
 4076                {
 4077                    return pane;
 4078                }
 4079            }
 4080        }
 4081        self.active_pane().clone()
 4082    }
 4083
 4084    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4085        self.find_pane_in_direction(SplitDirection::Right, cx)
 4086            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4087            .unwrap_or_else(|| {
 4088                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4089            })
 4090            .clone()
 4091    }
 4092
 4093    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4094        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4095        weak_pane.upgrade()
 4096    }
 4097
 4098    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4099        self.follower_states.retain(|leader_id, state| {
 4100            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4101                for item in state.items_by_leader_view_id.values() {
 4102                    item.view.set_leader_id(None, window, cx);
 4103                }
 4104                false
 4105            } else {
 4106                true
 4107            }
 4108        });
 4109        cx.notify();
 4110    }
 4111
 4112    pub fn start_following(
 4113        &mut self,
 4114        leader_id: impl Into<CollaboratorId>,
 4115        window: &mut Window,
 4116        cx: &mut Context<Self>,
 4117    ) -> Option<Task<Result<()>>> {
 4118        let leader_id = leader_id.into();
 4119        let pane = self.active_pane().clone();
 4120
 4121        self.last_leaders_by_pane
 4122            .insert(pane.downgrade(), leader_id);
 4123        self.unfollow(leader_id, window, cx);
 4124        self.unfollow_in_pane(&pane, window, cx);
 4125        self.follower_states.insert(
 4126            leader_id,
 4127            FollowerState {
 4128                center_pane: pane.clone(),
 4129                dock_pane: None,
 4130                active_view_id: None,
 4131                items_by_leader_view_id: Default::default(),
 4132            },
 4133        );
 4134        cx.notify();
 4135
 4136        match leader_id {
 4137            CollaboratorId::PeerId(leader_peer_id) => {
 4138                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4139                let project_id = self.project.read(cx).remote_id();
 4140                let request = self.app_state.client.request(proto::Follow {
 4141                    room_id,
 4142                    project_id,
 4143                    leader_id: Some(leader_peer_id),
 4144                });
 4145
 4146                Some(cx.spawn_in(window, async move |this, cx| {
 4147                    let response = request.await?;
 4148                    this.update(cx, |this, _| {
 4149                        let state = this
 4150                            .follower_states
 4151                            .get_mut(&leader_id)
 4152                            .context("following interrupted")?;
 4153                        state.active_view_id = response
 4154                            .active_view
 4155                            .as_ref()
 4156                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4157                        anyhow::Ok(())
 4158                    })??;
 4159                    if let Some(view) = response.active_view {
 4160                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4161                    }
 4162                    this.update_in(cx, |this, window, cx| {
 4163                        this.leader_updated(leader_id, window, cx)
 4164                    })?;
 4165                    Ok(())
 4166                }))
 4167            }
 4168            CollaboratorId::Agent => {
 4169                self.leader_updated(leader_id, window, cx)?;
 4170                Some(Task::ready(Ok(())))
 4171            }
 4172        }
 4173    }
 4174
 4175    pub fn follow_next_collaborator(
 4176        &mut self,
 4177        _: &FollowNextCollaborator,
 4178        window: &mut Window,
 4179        cx: &mut Context<Self>,
 4180    ) {
 4181        let collaborators = self.project.read(cx).collaborators();
 4182        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4183            let mut collaborators = collaborators.keys().copied();
 4184            for peer_id in collaborators.by_ref() {
 4185                if CollaboratorId::PeerId(peer_id) == leader_id {
 4186                    break;
 4187                }
 4188            }
 4189            collaborators.next().map(CollaboratorId::PeerId)
 4190        } else if let Some(last_leader_id) =
 4191            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4192        {
 4193            match last_leader_id {
 4194                CollaboratorId::PeerId(peer_id) => {
 4195                    if collaborators.contains_key(peer_id) {
 4196                        Some(*last_leader_id)
 4197                    } else {
 4198                        None
 4199                    }
 4200                }
 4201                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4202            }
 4203        } else {
 4204            None
 4205        };
 4206
 4207        let pane = self.active_pane.clone();
 4208        let Some(leader_id) = next_leader_id.or_else(|| {
 4209            Some(CollaboratorId::PeerId(
 4210                collaborators.keys().copied().next()?,
 4211            ))
 4212        }) else {
 4213            return;
 4214        };
 4215        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4216            return;
 4217        }
 4218        if let Some(task) = self.start_following(leader_id, window, cx) {
 4219            task.detach_and_log_err(cx)
 4220        }
 4221    }
 4222
 4223    pub fn follow(
 4224        &mut self,
 4225        leader_id: impl Into<CollaboratorId>,
 4226        window: &mut Window,
 4227        cx: &mut Context<Self>,
 4228    ) {
 4229        let leader_id = leader_id.into();
 4230
 4231        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4232            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4233                return;
 4234            };
 4235            let room = room.read(cx);
 4236            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4237                return;
 4238            };
 4239
 4240            let project = self.project.read(cx);
 4241
 4242            let other_project_id = match remote_participant.location {
 4243                call::ParticipantLocation::External => None,
 4244                call::ParticipantLocation::UnsharedProject => None,
 4245                call::ParticipantLocation::SharedProject { project_id } => {
 4246                    if Some(project_id) == project.remote_id() {
 4247                        None
 4248                    } else {
 4249                        Some(project_id)
 4250                    }
 4251                }
 4252            };
 4253
 4254            // if they are active in another project, follow there.
 4255            if let Some(project_id) = other_project_id {
 4256                let app_state = self.app_state.clone();
 4257                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4258                    .detach_and_log_err(cx);
 4259            }
 4260        }
 4261
 4262        // if you're already following, find the right pane and focus it.
 4263        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4264            window.focus(&follower_state.pane().focus_handle(cx));
 4265
 4266            return;
 4267        }
 4268
 4269        // Otherwise, follow.
 4270        if let Some(task) = self.start_following(leader_id, window, cx) {
 4271            task.detach_and_log_err(cx)
 4272        }
 4273    }
 4274
 4275    pub fn unfollow(
 4276        &mut self,
 4277        leader_id: impl Into<CollaboratorId>,
 4278        window: &mut Window,
 4279        cx: &mut Context<Self>,
 4280    ) -> Option<()> {
 4281        cx.notify();
 4282
 4283        let leader_id = leader_id.into();
 4284        let state = self.follower_states.remove(&leader_id)?;
 4285        for (_, item) in state.items_by_leader_view_id {
 4286            item.view.set_leader_id(None, window, cx);
 4287        }
 4288
 4289        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4290            let project_id = self.project.read(cx).remote_id();
 4291            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4292            self.app_state
 4293                .client
 4294                .send(proto::Unfollow {
 4295                    room_id,
 4296                    project_id,
 4297                    leader_id: Some(leader_peer_id),
 4298                })
 4299                .log_err();
 4300        }
 4301
 4302        Some(())
 4303    }
 4304
 4305    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4306        self.follower_states.contains_key(&id.into())
 4307    }
 4308
 4309    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4310        cx.emit(Event::ActiveItemChanged);
 4311        let active_entry = self.active_project_path(cx);
 4312        self.project
 4313            .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 4314
 4315        self.update_window_title(window, cx);
 4316    }
 4317
 4318    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4319        let project = self.project().read(cx);
 4320        let mut title = String::new();
 4321
 4322        for (i, name) in project.worktree_root_names(cx).enumerate() {
 4323            if i > 0 {
 4324                title.push_str(", ");
 4325            }
 4326            title.push_str(name);
 4327        }
 4328
 4329        if title.is_empty() {
 4330            title = "empty project".to_string();
 4331        }
 4332
 4333        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4334            let filename = path
 4335                .path
 4336                .file_name()
 4337                .map(|s| s.to_string_lossy())
 4338                .or_else(|| {
 4339                    Some(Cow::Borrowed(
 4340                        project
 4341                            .worktree_for_id(path.worktree_id, cx)?
 4342                            .read(cx)
 4343                            .root_name(),
 4344                    ))
 4345                });
 4346
 4347            if let Some(filename) = filename {
 4348                title.push_str("");
 4349                title.push_str(filename.as_ref());
 4350            }
 4351        }
 4352
 4353        if project.is_via_collab() {
 4354            title.push_str("");
 4355        } else if project.is_shared() {
 4356            title.push_str("");
 4357        }
 4358
 4359        window.set_window_title(&title);
 4360    }
 4361
 4362    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4363        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4364        if is_edited != self.window_edited {
 4365            self.window_edited = is_edited;
 4366            window.set_window_edited(self.window_edited)
 4367        }
 4368    }
 4369
 4370    fn update_item_dirty_state(
 4371        &mut self,
 4372        item: &dyn ItemHandle,
 4373        window: &mut Window,
 4374        cx: &mut App,
 4375    ) {
 4376        let is_dirty = item.is_dirty(cx);
 4377        let item_id = item.item_id();
 4378        let was_dirty = self.dirty_items.contains_key(&item_id);
 4379        if is_dirty == was_dirty {
 4380            return;
 4381        }
 4382        if was_dirty {
 4383            self.dirty_items.remove(&item_id);
 4384            self.update_window_edited(window, cx);
 4385            return;
 4386        }
 4387        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4388            let s = item.on_release(
 4389                cx,
 4390                Box::new(move |cx| {
 4391                    window_handle
 4392                        .update(cx, |this, window, cx| {
 4393                            this.dirty_items.remove(&item_id);
 4394                            this.update_window_edited(window, cx)
 4395                        })
 4396                        .ok();
 4397                }),
 4398            );
 4399            self.dirty_items.insert(item_id, s);
 4400            self.update_window_edited(window, cx);
 4401        }
 4402    }
 4403
 4404    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4405        if self.notifications.is_empty() {
 4406            None
 4407        } else {
 4408            Some(
 4409                div()
 4410                    .absolute()
 4411                    .right_3()
 4412                    .bottom_3()
 4413                    .w_112()
 4414                    .h_full()
 4415                    .flex()
 4416                    .flex_col()
 4417                    .justify_end()
 4418                    .gap_2()
 4419                    .children(
 4420                        self.notifications
 4421                            .iter()
 4422                            .map(|(_, notification)| notification.clone().into_any()),
 4423                    ),
 4424            )
 4425        }
 4426    }
 4427
 4428    // RPC handlers
 4429
 4430    fn active_view_for_follower(
 4431        &self,
 4432        follower_project_id: Option<u64>,
 4433        window: &mut Window,
 4434        cx: &mut Context<Self>,
 4435    ) -> Option<proto::View> {
 4436        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4437        let item = item?;
 4438        let leader_id = self
 4439            .pane_for(&*item)
 4440            .and_then(|pane| self.leader_for_pane(&pane));
 4441        let leader_peer_id = match leader_id {
 4442            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4443            Some(CollaboratorId::Agent) | None => None,
 4444        };
 4445
 4446        let item_handle = item.to_followable_item_handle(cx)?;
 4447        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4448        let variant = item_handle.to_state_proto(window, cx)?;
 4449
 4450        if item_handle.is_project_item(window, cx)
 4451            && (follower_project_id.is_none()
 4452                || follower_project_id != self.project.read(cx).remote_id())
 4453        {
 4454            return None;
 4455        }
 4456
 4457        Some(proto::View {
 4458            id: id.to_proto(),
 4459            leader_id: leader_peer_id,
 4460            variant: Some(variant),
 4461            panel_id: panel_id.map(|id| id as i32),
 4462        })
 4463    }
 4464
 4465    fn handle_follow(
 4466        &mut self,
 4467        follower_project_id: Option<u64>,
 4468        window: &mut Window,
 4469        cx: &mut Context<Self>,
 4470    ) -> proto::FollowResponse {
 4471        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4472
 4473        cx.notify();
 4474        proto::FollowResponse {
 4475            // TODO: Remove after version 0.145.x stabilizes.
 4476            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4477            views: active_view.iter().cloned().collect(),
 4478            active_view,
 4479        }
 4480    }
 4481
 4482    fn handle_update_followers(
 4483        &mut self,
 4484        leader_id: PeerId,
 4485        message: proto::UpdateFollowers,
 4486        _window: &mut Window,
 4487        _cx: &mut Context<Self>,
 4488    ) {
 4489        self.leader_updates_tx
 4490            .unbounded_send((leader_id, message))
 4491            .ok();
 4492    }
 4493
 4494    async fn process_leader_update(
 4495        this: &WeakEntity<Self>,
 4496        leader_id: PeerId,
 4497        update: proto::UpdateFollowers,
 4498        cx: &mut AsyncWindowContext,
 4499    ) -> Result<()> {
 4500        match update.variant.context("invalid update")? {
 4501            proto::update_followers::Variant::CreateView(view) => {
 4502                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4503                let should_add_view = this.update(cx, |this, _| {
 4504                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4505                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4506                    } else {
 4507                        anyhow::Ok(false)
 4508                    }
 4509                })??;
 4510
 4511                if should_add_view {
 4512                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4513                }
 4514            }
 4515            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4516                let should_add_view = this.update(cx, |this, _| {
 4517                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4518                        state.active_view_id = update_active_view
 4519                            .view
 4520                            .as_ref()
 4521                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4522
 4523                        if state.active_view_id.is_some_and(|view_id| {
 4524                            !state.items_by_leader_view_id.contains_key(&view_id)
 4525                        }) {
 4526                            anyhow::Ok(true)
 4527                        } else {
 4528                            anyhow::Ok(false)
 4529                        }
 4530                    } else {
 4531                        anyhow::Ok(false)
 4532                    }
 4533                })??;
 4534
 4535                if should_add_view {
 4536                    if let Some(view) = update_active_view.view {
 4537                        Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4538                    }
 4539                }
 4540            }
 4541            proto::update_followers::Variant::UpdateView(update_view) => {
 4542                let variant = update_view.variant.context("missing update view variant")?;
 4543                let id = update_view.id.context("missing update view id")?;
 4544                let mut tasks = Vec::new();
 4545                this.update_in(cx, |this, window, cx| {
 4546                    let project = this.project.clone();
 4547                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4548                        let view_id = ViewId::from_proto(id.clone())?;
 4549                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4550                            tasks.push(item.view.apply_update_proto(
 4551                                &project,
 4552                                variant.clone(),
 4553                                window,
 4554                                cx,
 4555                            ));
 4556                        }
 4557                    }
 4558                    anyhow::Ok(())
 4559                })??;
 4560                try_join_all(tasks).await.log_err();
 4561            }
 4562        }
 4563        this.update_in(cx, |this, window, cx| {
 4564            this.leader_updated(leader_id, window, cx)
 4565        })?;
 4566        Ok(())
 4567    }
 4568
 4569    async fn add_view_from_leader(
 4570        this: WeakEntity<Self>,
 4571        leader_id: PeerId,
 4572        view: &proto::View,
 4573        cx: &mut AsyncWindowContext,
 4574    ) -> Result<()> {
 4575        let this = this.upgrade().context("workspace dropped")?;
 4576
 4577        let Some(id) = view.id.clone() else {
 4578            anyhow::bail!("no id for view");
 4579        };
 4580        let id = ViewId::from_proto(id)?;
 4581        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4582
 4583        let pane = this.update(cx, |this, _cx| {
 4584            let state = this
 4585                .follower_states
 4586                .get(&leader_id.into())
 4587                .context("stopped following")?;
 4588            anyhow::Ok(state.pane().clone())
 4589        })??;
 4590        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4591            let client = this.read(cx).client().clone();
 4592            pane.items().find_map(|item| {
 4593                let item = item.to_followable_item_handle(cx)?;
 4594                if item.remote_id(&client, window, cx) == Some(id) {
 4595                    Some(item)
 4596                } else {
 4597                    None
 4598                }
 4599            })
 4600        })?;
 4601        let item = if let Some(existing_item) = existing_item {
 4602            existing_item
 4603        } else {
 4604            let variant = view.variant.clone();
 4605            anyhow::ensure!(variant.is_some(), "missing view variant");
 4606
 4607            let task = cx.update(|window, cx| {
 4608                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4609            })?;
 4610
 4611            let Some(task) = task else {
 4612                anyhow::bail!(
 4613                    "failed to construct view from leader (maybe from a different version of zed?)"
 4614                );
 4615            };
 4616
 4617            let mut new_item = task.await?;
 4618            pane.update_in(cx, |pane, window, cx| {
 4619                let mut item_to_remove = None;
 4620                for (ix, item) in pane.items().enumerate() {
 4621                    if let Some(item) = item.to_followable_item_handle(cx) {
 4622                        match new_item.dedup(item.as_ref(), window, cx) {
 4623                            Some(item::Dedup::KeepExisting) => {
 4624                                new_item =
 4625                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4626                                break;
 4627                            }
 4628                            Some(item::Dedup::ReplaceExisting) => {
 4629                                item_to_remove = Some((ix, item.item_id()));
 4630                                break;
 4631                            }
 4632                            None => {}
 4633                        }
 4634                    }
 4635                }
 4636
 4637                if let Some((ix, id)) = item_to_remove {
 4638                    pane.remove_item(id, false, false, window, cx);
 4639                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4640                }
 4641            })?;
 4642
 4643            new_item
 4644        };
 4645
 4646        this.update_in(cx, |this, window, cx| {
 4647            let state = this.follower_states.get_mut(&leader_id.into())?;
 4648            item.set_leader_id(Some(leader_id.into()), window, cx);
 4649            state.items_by_leader_view_id.insert(
 4650                id,
 4651                FollowerView {
 4652                    view: item,
 4653                    location: panel_id,
 4654                },
 4655            );
 4656
 4657            Some(())
 4658        })?;
 4659
 4660        Ok(())
 4661    }
 4662
 4663    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4664        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4665            return;
 4666        };
 4667
 4668        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4669            let buffer_entity_id = agent_location.buffer.entity_id();
 4670            let view_id = ViewId {
 4671                creator: CollaboratorId::Agent,
 4672                id: buffer_entity_id.as_u64(),
 4673            };
 4674            follower_state.active_view_id = Some(view_id);
 4675
 4676            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4677                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4678                hash_map::Entry::Vacant(entry) => {
 4679                    let existing_view =
 4680                        follower_state
 4681                            .center_pane
 4682                            .read(cx)
 4683                            .items()
 4684                            .find_map(|item| {
 4685                                let item = item.to_followable_item_handle(cx)?;
 4686                                if item.is_singleton(cx)
 4687                                    && item.project_item_model_ids(cx).as_slice()
 4688                                        == [buffer_entity_id]
 4689                                {
 4690                                    Some(item)
 4691                                } else {
 4692                                    None
 4693                                }
 4694                            });
 4695                    let view = existing_view.or_else(|| {
 4696                        agent_location.buffer.upgrade().and_then(|buffer| {
 4697                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4698                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4699                            })?
 4700                            .to_followable_item_handle(cx)
 4701                        })
 4702                    });
 4703
 4704                    if let Some(view) = view {
 4705                        Some(entry.insert(FollowerView {
 4706                            view,
 4707                            location: None,
 4708                        }))
 4709                    } else {
 4710                        None
 4711                    }
 4712                }
 4713            };
 4714
 4715            if let Some(item) = item {
 4716                item.view
 4717                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4718                item.view
 4719                    .update_agent_location(agent_location.position, window, cx);
 4720            }
 4721        } else {
 4722            follower_state.active_view_id = None;
 4723        }
 4724
 4725        self.leader_updated(CollaboratorId::Agent, window, cx);
 4726    }
 4727
 4728    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4729        let mut is_project_item = true;
 4730        let mut update = proto::UpdateActiveView::default();
 4731        if window.is_window_active() {
 4732            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4733
 4734            if let Some(item) = active_item {
 4735                if item.item_focus_handle(cx).contains_focused(window, cx) {
 4736                    let leader_id = self
 4737                        .pane_for(&*item)
 4738                        .and_then(|pane| self.leader_for_pane(&pane));
 4739                    let leader_peer_id = match leader_id {
 4740                        Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4741                        Some(CollaboratorId::Agent) | None => None,
 4742                    };
 4743
 4744                    if let Some(item) = item.to_followable_item_handle(cx) {
 4745                        let id = item
 4746                            .remote_id(&self.app_state.client, window, cx)
 4747                            .map(|id| id.to_proto());
 4748
 4749                        if let Some(id) = id.clone() {
 4750                            if let Some(variant) = item.to_state_proto(window, cx) {
 4751                                let view = Some(proto::View {
 4752                                    id: id.clone(),
 4753                                    leader_id: leader_peer_id,
 4754                                    variant: Some(variant),
 4755                                    panel_id: panel_id.map(|id| id as i32),
 4756                                });
 4757
 4758                                is_project_item = item.is_project_item(window, cx);
 4759                                update = proto::UpdateActiveView {
 4760                                    view,
 4761                                    // TODO: Remove after version 0.145.x stabilizes.
 4762                                    id: id.clone(),
 4763                                    leader_id: leader_peer_id,
 4764                                };
 4765                            }
 4766                        };
 4767                    }
 4768                }
 4769            }
 4770        }
 4771
 4772        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 4773        if active_view_id != self.last_active_view_id.as_ref() {
 4774            self.last_active_view_id = active_view_id.cloned();
 4775            self.update_followers(
 4776                is_project_item,
 4777                proto::update_followers::Variant::UpdateActiveView(update),
 4778                window,
 4779                cx,
 4780            );
 4781        }
 4782    }
 4783
 4784    fn active_item_for_followers(
 4785        &self,
 4786        window: &mut Window,
 4787        cx: &mut App,
 4788    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 4789        let mut active_item = None;
 4790        let mut panel_id = None;
 4791        for dock in self.all_docks() {
 4792            if dock.focus_handle(cx).contains_focused(window, cx) {
 4793                if let Some(panel) = dock.read(cx).active_panel() {
 4794                    if let Some(pane) = panel.pane(cx) {
 4795                        if let Some(item) = pane.read(cx).active_item() {
 4796                            active_item = Some(item);
 4797                            panel_id = panel.remote_id();
 4798                            break;
 4799                        }
 4800                    }
 4801                }
 4802            }
 4803        }
 4804
 4805        if active_item.is_none() {
 4806            active_item = self.active_pane().read(cx).active_item();
 4807        }
 4808        (active_item, panel_id)
 4809    }
 4810
 4811    fn update_followers(
 4812        &self,
 4813        project_only: bool,
 4814        update: proto::update_followers::Variant,
 4815        _: &mut Window,
 4816        cx: &mut App,
 4817    ) -> Option<()> {
 4818        // If this update only applies to for followers in the current project,
 4819        // then skip it unless this project is shared. If it applies to all
 4820        // followers, regardless of project, then set `project_id` to none,
 4821        // indicating that it goes to all followers.
 4822        let project_id = if project_only {
 4823            Some(self.project.read(cx).remote_id()?)
 4824        } else {
 4825            None
 4826        };
 4827        self.app_state().workspace_store.update(cx, |store, cx| {
 4828            store.update_followers(project_id, update, cx)
 4829        })
 4830    }
 4831
 4832    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 4833        self.follower_states.iter().find_map(|(leader_id, state)| {
 4834            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 4835                Some(*leader_id)
 4836            } else {
 4837                None
 4838            }
 4839        })
 4840    }
 4841
 4842    fn leader_updated(
 4843        &mut self,
 4844        leader_id: impl Into<CollaboratorId>,
 4845        window: &mut Window,
 4846        cx: &mut Context<Self>,
 4847    ) -> Option<Box<dyn ItemHandle>> {
 4848        cx.notify();
 4849
 4850        let leader_id = leader_id.into();
 4851        let (panel_id, item) = match leader_id {
 4852            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 4853            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 4854        };
 4855
 4856        let state = self.follower_states.get(&leader_id)?;
 4857        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 4858        let pane;
 4859        if let Some(panel_id) = panel_id {
 4860            pane = self
 4861                .activate_panel_for_proto_id(panel_id, window, cx)?
 4862                .pane(cx)?;
 4863            let state = self.follower_states.get_mut(&leader_id)?;
 4864            state.dock_pane = Some(pane.clone());
 4865        } else {
 4866            pane = state.center_pane.clone();
 4867            let state = self.follower_states.get_mut(&leader_id)?;
 4868            if let Some(dock_pane) = state.dock_pane.take() {
 4869                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 4870            }
 4871        }
 4872
 4873        pane.update(cx, |pane, cx| {
 4874            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 4875            if let Some(index) = pane.index_for_item(item.as_ref()) {
 4876                pane.activate_item(index, false, false, window, cx);
 4877            } else {
 4878                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 4879            }
 4880
 4881            if focus_active_item {
 4882                pane.focus_active_item(window, cx)
 4883            }
 4884        });
 4885
 4886        Some(item)
 4887    }
 4888
 4889    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 4890        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 4891        let active_view_id = state.active_view_id?;
 4892        Some(
 4893            state
 4894                .items_by_leader_view_id
 4895                .get(&active_view_id)?
 4896                .view
 4897                .boxed_clone(),
 4898        )
 4899    }
 4900
 4901    fn active_item_for_peer(
 4902        &self,
 4903        peer_id: PeerId,
 4904        window: &mut Window,
 4905        cx: &mut Context<Self>,
 4906    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 4907        let call = self.active_call()?;
 4908        let room = call.read(cx).room()?.read(cx);
 4909        let participant = room.remote_participant_for_peer_id(peer_id)?;
 4910        let leader_in_this_app;
 4911        let leader_in_this_project;
 4912        match participant.location {
 4913            call::ParticipantLocation::SharedProject { project_id } => {
 4914                leader_in_this_app = true;
 4915                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 4916            }
 4917            call::ParticipantLocation::UnsharedProject => {
 4918                leader_in_this_app = true;
 4919                leader_in_this_project = false;
 4920            }
 4921            call::ParticipantLocation::External => {
 4922                leader_in_this_app = false;
 4923                leader_in_this_project = false;
 4924            }
 4925        };
 4926        let state = self.follower_states.get(&peer_id.into())?;
 4927        let mut item_to_activate = None;
 4928        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 4929            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id) {
 4930                if leader_in_this_project || !item.view.is_project_item(window, cx) {
 4931                    item_to_activate = Some((item.location, item.view.boxed_clone()));
 4932                }
 4933            }
 4934        } else if let Some(shared_screen) =
 4935            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 4936        {
 4937            item_to_activate = Some((None, Box::new(shared_screen)));
 4938        }
 4939        item_to_activate
 4940    }
 4941
 4942    fn shared_screen_for_peer(
 4943        &self,
 4944        peer_id: PeerId,
 4945        pane: &Entity<Pane>,
 4946        window: &mut Window,
 4947        cx: &mut App,
 4948    ) -> Option<Entity<SharedScreen>> {
 4949        let call = self.active_call()?;
 4950        let room = call.read(cx).room()?.clone();
 4951        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 4952        let track = participant.video_tracks.values().next()?.clone();
 4953        let user = participant.user.clone();
 4954
 4955        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 4956            if item.read(cx).peer_id == peer_id {
 4957                return Some(item);
 4958            }
 4959        }
 4960
 4961        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 4962    }
 4963
 4964    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4965        if window.is_window_active() {
 4966            self.update_active_view_for_followers(window, cx);
 4967
 4968            if let Some(database_id) = self.database_id {
 4969                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 4970                    .detach();
 4971            }
 4972        } else {
 4973            for pane in &self.panes {
 4974                pane.update(cx, |pane, cx| {
 4975                    if let Some(item) = pane.active_item() {
 4976                        item.workspace_deactivated(window, cx);
 4977                    }
 4978                    for item in pane.items() {
 4979                        if matches!(
 4980                            item.workspace_settings(cx).autosave,
 4981                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 4982                        ) {
 4983                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 4984                                .detach_and_log_err(cx);
 4985                        }
 4986                    }
 4987                });
 4988            }
 4989        }
 4990    }
 4991
 4992    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 4993        self.active_call.as_ref().map(|(call, _)| call)
 4994    }
 4995
 4996    fn on_active_call_event(
 4997        &mut self,
 4998        _: &Entity<ActiveCall>,
 4999        event: &call::room::Event,
 5000        window: &mut Window,
 5001        cx: &mut Context<Self>,
 5002    ) {
 5003        match event {
 5004            call::room::Event::ParticipantLocationChanged { participant_id }
 5005            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5006                self.leader_updated(participant_id, window, cx);
 5007            }
 5008            _ => {}
 5009        }
 5010    }
 5011
 5012    pub fn database_id(&self) -> Option<WorkspaceId> {
 5013        self.database_id
 5014    }
 5015
 5016    pub fn session_id(&self) -> Option<String> {
 5017        self.session_id.clone()
 5018    }
 5019
 5020    fn local_paths(&self, cx: &App) -> Option<Vec<Arc<Path>>> {
 5021        let project = self.project().read(cx);
 5022
 5023        if project.is_local() {
 5024            Some(
 5025                project
 5026                    .visible_worktrees(cx)
 5027                    .map(|worktree| worktree.read(cx).abs_path())
 5028                    .collect::<Vec<_>>(),
 5029            )
 5030        } else {
 5031            None
 5032        }
 5033    }
 5034
 5035    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5036        match member {
 5037            Member::Axis(PaneAxis { members, .. }) => {
 5038                for child in members.iter() {
 5039                    self.remove_panes(child.clone(), window, cx)
 5040                }
 5041            }
 5042            Member::Pane(pane) => {
 5043                self.force_remove_pane(&pane, &None, window, cx);
 5044            }
 5045        }
 5046    }
 5047
 5048    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5049        self.session_id.take();
 5050        self.serialize_workspace_internal(window, cx)
 5051    }
 5052
 5053    fn force_remove_pane(
 5054        &mut self,
 5055        pane: &Entity<Pane>,
 5056        focus_on: &Option<Entity<Pane>>,
 5057        window: &mut Window,
 5058        cx: &mut Context<Workspace>,
 5059    ) {
 5060        self.panes.retain(|p| p != pane);
 5061        if let Some(focus_on) = focus_on {
 5062            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5063        } else {
 5064            if self.active_pane() == pane {
 5065                self.panes
 5066                    .last()
 5067                    .unwrap()
 5068                    .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5069            }
 5070        }
 5071        if self.last_active_center_pane == Some(pane.downgrade()) {
 5072            self.last_active_center_pane = None;
 5073        }
 5074        cx.notify();
 5075    }
 5076
 5077    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5078        if self._schedule_serialize.is_none() {
 5079            self._schedule_serialize = Some(cx.spawn_in(window, async move |this, cx| {
 5080                cx.background_executor()
 5081                    .timer(Duration::from_millis(100))
 5082                    .await;
 5083                this.update_in(cx, |this, window, cx| {
 5084                    this.serialize_workspace_internal(window, cx).detach();
 5085                    this._schedule_serialize.take();
 5086                })
 5087                .log_err();
 5088            }));
 5089        }
 5090    }
 5091
 5092    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5093        let Some(database_id) = self.database_id() else {
 5094            return Task::ready(());
 5095        };
 5096
 5097        fn serialize_pane_handle(
 5098            pane_handle: &Entity<Pane>,
 5099            window: &mut Window,
 5100            cx: &mut App,
 5101        ) -> SerializedPane {
 5102            let (items, active, pinned_count) = {
 5103                let pane = pane_handle.read(cx);
 5104                let active_item_id = pane.active_item().map(|item| item.item_id());
 5105                (
 5106                    pane.items()
 5107                        .filter_map(|handle| {
 5108                            let handle = handle.to_serializable_item_handle(cx)?;
 5109
 5110                            Some(SerializedItem {
 5111                                kind: Arc::from(handle.serialized_item_kind()),
 5112                                item_id: handle.item_id().as_u64(),
 5113                                active: Some(handle.item_id()) == active_item_id,
 5114                                preview: pane.is_active_preview_item(handle.item_id()),
 5115                            })
 5116                        })
 5117                        .collect::<Vec<_>>(),
 5118                    pane.has_focus(window, cx),
 5119                    pane.pinned_count(),
 5120                )
 5121            };
 5122
 5123            SerializedPane::new(items, active, pinned_count)
 5124        }
 5125
 5126        fn build_serialized_pane_group(
 5127            pane_group: &Member,
 5128            window: &mut Window,
 5129            cx: &mut App,
 5130        ) -> SerializedPaneGroup {
 5131            match pane_group {
 5132                Member::Axis(PaneAxis {
 5133                    axis,
 5134                    members,
 5135                    flexes,
 5136                    bounding_boxes: _,
 5137                }) => SerializedPaneGroup::Group {
 5138                    axis: SerializedAxis(*axis),
 5139                    children: members
 5140                        .iter()
 5141                        .map(|member| build_serialized_pane_group(member, window, cx))
 5142                        .collect::<Vec<_>>(),
 5143                    flexes: Some(flexes.lock().clone()),
 5144                },
 5145                Member::Pane(pane_handle) => {
 5146                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5147                }
 5148            }
 5149        }
 5150
 5151        fn build_serialized_docks(
 5152            this: &Workspace,
 5153            window: &mut Window,
 5154            cx: &mut App,
 5155        ) -> DockStructure {
 5156            let left_dock = this.left_dock.read(cx);
 5157            let left_visible = left_dock.is_open();
 5158            let left_active_panel = left_dock
 5159                .active_panel()
 5160                .map(|panel| panel.persistent_name().to_string());
 5161            let left_dock_zoom = left_dock
 5162                .active_panel()
 5163                .map(|panel| panel.is_zoomed(window, cx))
 5164                .unwrap_or(false);
 5165
 5166            let right_dock = this.right_dock.read(cx);
 5167            let right_visible = right_dock.is_open();
 5168            let right_active_panel = right_dock
 5169                .active_panel()
 5170                .map(|panel| panel.persistent_name().to_string());
 5171            let right_dock_zoom = right_dock
 5172                .active_panel()
 5173                .map(|panel| panel.is_zoomed(window, cx))
 5174                .unwrap_or(false);
 5175
 5176            let bottom_dock = this.bottom_dock.read(cx);
 5177            let bottom_visible = bottom_dock.is_open();
 5178            let bottom_active_panel = bottom_dock
 5179                .active_panel()
 5180                .map(|panel| panel.persistent_name().to_string());
 5181            let bottom_dock_zoom = bottom_dock
 5182                .active_panel()
 5183                .map(|panel| panel.is_zoomed(window, cx))
 5184                .unwrap_or(false);
 5185
 5186            DockStructure {
 5187                left: DockData {
 5188                    visible: left_visible,
 5189                    active_panel: left_active_panel,
 5190                    zoom: left_dock_zoom,
 5191                },
 5192                right: DockData {
 5193                    visible: right_visible,
 5194                    active_panel: right_active_panel,
 5195                    zoom: right_dock_zoom,
 5196                },
 5197                bottom: DockData {
 5198                    visible: bottom_visible,
 5199                    active_panel: bottom_active_panel,
 5200                    zoom: bottom_dock_zoom,
 5201                },
 5202            }
 5203        }
 5204
 5205        if let Some(location) = self.serialize_workspace_location(cx) {
 5206            let breakpoints = self.project.update(cx, |project, cx| {
 5207                project
 5208                    .breakpoint_store()
 5209                    .read(cx)
 5210                    .all_source_breakpoints(cx)
 5211            });
 5212
 5213            let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5214            let docks = build_serialized_docks(self, window, cx);
 5215            let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5216            let serialized_workspace = SerializedWorkspace {
 5217                id: database_id,
 5218                location,
 5219                center_group,
 5220                window_bounds,
 5221                display: Default::default(),
 5222                docks,
 5223                centered_layout: self.centered_layout,
 5224                session_id: self.session_id.clone(),
 5225                breakpoints,
 5226                window_id: Some(window.window_handle().window_id().as_u64()),
 5227            };
 5228
 5229            return window.spawn(cx, async move |_| {
 5230                persistence::DB.save_workspace(serialized_workspace).await;
 5231            });
 5232        }
 5233        Task::ready(())
 5234    }
 5235
 5236    fn serialize_workspace_location(&self, cx: &App) -> Option<SerializedWorkspaceLocation> {
 5237        if let Some(ssh_project) = &self.serialized_ssh_project {
 5238            Some(SerializedWorkspaceLocation::Ssh(ssh_project.clone()))
 5239        } else if let Some(local_paths) = self.local_paths(cx) {
 5240            if !local_paths.is_empty() {
 5241                Some(SerializedWorkspaceLocation::from_local_paths(local_paths))
 5242            } else {
 5243                None
 5244            }
 5245        } else {
 5246            None
 5247        }
 5248    }
 5249
 5250    fn update_history(&self, cx: &mut App) {
 5251        let Some(id) = self.database_id() else {
 5252            return;
 5253        };
 5254        let Some(location) = self.serialize_workspace_location(cx) else {
 5255            return;
 5256        };
 5257        if let Some(manager) = HistoryManager::global(cx) {
 5258            manager.update(cx, |this, cx| {
 5259                this.update_history(id, HistoryManagerEntry::new(id, &location), cx);
 5260            });
 5261        }
 5262    }
 5263
 5264    async fn serialize_items(
 5265        this: &WeakEntity<Self>,
 5266        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5267        cx: &mut AsyncWindowContext,
 5268    ) -> Result<()> {
 5269        const CHUNK_SIZE: usize = 200;
 5270
 5271        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5272
 5273        while let Some(items_received) = serializable_items.next().await {
 5274            let unique_items =
 5275                items_received
 5276                    .into_iter()
 5277                    .fold(HashMap::default(), |mut acc, item| {
 5278                        acc.entry(item.item_id()).or_insert(item);
 5279                        acc
 5280                    });
 5281
 5282            // We use into_iter() here so that the references to the items are moved into
 5283            // the tasks and not kept alive while we're sleeping.
 5284            for (_, item) in unique_items.into_iter() {
 5285                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5286                    item.serialize(workspace, false, window, cx)
 5287                }) {
 5288                    cx.background_spawn(async move { task.await.log_err() })
 5289                        .detach();
 5290                }
 5291            }
 5292
 5293            cx.background_executor()
 5294                .timer(SERIALIZATION_THROTTLE_TIME)
 5295                .await;
 5296        }
 5297
 5298        Ok(())
 5299    }
 5300
 5301    pub(crate) fn enqueue_item_serialization(
 5302        &mut self,
 5303        item: Box<dyn SerializableItemHandle>,
 5304    ) -> Result<()> {
 5305        self.serializable_items_tx
 5306            .unbounded_send(item)
 5307            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5308    }
 5309
 5310    pub(crate) fn load_workspace(
 5311        serialized_workspace: SerializedWorkspace,
 5312        paths_to_open: Vec<Option<ProjectPath>>,
 5313        window: &mut Window,
 5314        cx: &mut Context<Workspace>,
 5315    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5316        cx.spawn_in(window, async move |workspace, cx| {
 5317            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5318
 5319            let mut center_group = None;
 5320            let mut center_items = None;
 5321
 5322            // Traverse the splits tree and add to things
 5323            if let Some((group, active_pane, items)) = serialized_workspace
 5324                .center_group
 5325                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5326                .await
 5327            {
 5328                center_items = Some(items);
 5329                center_group = Some((group, active_pane))
 5330            }
 5331
 5332            let mut items_by_project_path = HashMap::default();
 5333            let mut item_ids_by_kind = HashMap::default();
 5334            let mut all_deserialized_items = Vec::default();
 5335            cx.update(|_, cx| {
 5336                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5337                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5338                        item_ids_by_kind
 5339                            .entry(serializable_item_handle.serialized_item_kind())
 5340                            .or_insert(Vec::new())
 5341                            .push(item.item_id().as_u64() as ItemId);
 5342                    }
 5343
 5344                    if let Some(project_path) = item.project_path(cx) {
 5345                        items_by_project_path.insert(project_path, item.clone());
 5346                    }
 5347                    all_deserialized_items.push(item);
 5348                }
 5349            })?;
 5350
 5351            let opened_items = paths_to_open
 5352                .into_iter()
 5353                .map(|path_to_open| {
 5354                    path_to_open
 5355                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5356                })
 5357                .collect::<Vec<_>>();
 5358
 5359            // Remove old panes from workspace panes list
 5360            workspace.update_in(cx, |workspace, window, cx| {
 5361                if let Some((center_group, active_pane)) = center_group {
 5362                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5363
 5364                    // Swap workspace center group
 5365                    workspace.center = PaneGroup::with_root(center_group);
 5366                    if let Some(active_pane) = active_pane {
 5367                        workspace.set_active_pane(&active_pane, window, cx);
 5368                        cx.focus_self(window);
 5369                    } else {
 5370                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5371                    }
 5372                }
 5373
 5374                let docks = serialized_workspace.docks;
 5375
 5376                for (dock, serialized_dock) in [
 5377                    (&mut workspace.right_dock, docks.right),
 5378                    (&mut workspace.left_dock, docks.left),
 5379                    (&mut workspace.bottom_dock, docks.bottom),
 5380                ]
 5381                .iter_mut()
 5382                {
 5383                    dock.update(cx, |dock, cx| {
 5384                        dock.serialized_dock = Some(serialized_dock.clone());
 5385                        dock.restore_state(window, cx);
 5386                    });
 5387                }
 5388
 5389                cx.notify();
 5390            })?;
 5391
 5392            let _ = project
 5393                .update(cx, |project, cx| {
 5394                    project
 5395                        .breakpoint_store()
 5396                        .update(cx, |breakpoint_store, cx| {
 5397                            breakpoint_store
 5398                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5399                        })
 5400                })?
 5401                .await;
 5402
 5403            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5404            // after loading the items, we might have different items and in order to avoid
 5405            // the database filling up, we delete items that haven't been loaded now.
 5406            //
 5407            // The items that have been loaded, have been saved after they've been added to the workspace.
 5408            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5409                item_ids_by_kind
 5410                    .into_iter()
 5411                    .map(|(item_kind, loaded_items)| {
 5412                        SerializableItemRegistry::cleanup(
 5413                            item_kind,
 5414                            serialized_workspace.id,
 5415                            loaded_items,
 5416                            window,
 5417                            cx,
 5418                        )
 5419                        .log_err()
 5420                    })
 5421                    .collect::<Vec<_>>()
 5422            })?;
 5423
 5424            futures::future::join_all(clean_up_tasks).await;
 5425
 5426            workspace
 5427                .update_in(cx, |workspace, window, cx| {
 5428                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5429                    workspace.serialize_workspace_internal(window, cx).detach();
 5430
 5431                    // Ensure that we mark the window as edited if we did load dirty items
 5432                    workspace.update_window_edited(window, cx);
 5433                })
 5434                .ok();
 5435
 5436            Ok(opened_items)
 5437        })
 5438    }
 5439
 5440    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5441        self.add_workspace_actions_listeners(div, window, cx)
 5442            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5443            .on_action(cx.listener(Self::close_all_items_and_panes))
 5444            .on_action(cx.listener(Self::save_all))
 5445            .on_action(cx.listener(Self::send_keystrokes))
 5446            .on_action(cx.listener(Self::add_folder_to_project))
 5447            .on_action(cx.listener(Self::follow_next_collaborator))
 5448            .on_action(cx.listener(Self::close_window))
 5449            .on_action(cx.listener(Self::activate_pane_at_index))
 5450            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5451            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5452            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5453                let pane = workspace.active_pane().clone();
 5454                workspace.unfollow_in_pane(&pane, window, cx);
 5455            }))
 5456            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5457                workspace
 5458                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5459                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5460            }))
 5461            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5462                workspace
 5463                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5464                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5465            }))
 5466            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5467                workspace
 5468                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5469                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5470            }))
 5471            .on_action(
 5472                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5473                    workspace.activate_previous_pane(window, cx)
 5474                }),
 5475            )
 5476            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5477                workspace.activate_next_pane(window, cx)
 5478            }))
 5479            .on_action(
 5480                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5481                    workspace.activate_next_window(cx)
 5482                }),
 5483            )
 5484            .on_action(
 5485                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5486                    workspace.activate_previous_window(cx)
 5487                }),
 5488            )
 5489            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5490                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5491            }))
 5492            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5493                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5494            }))
 5495            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5496                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5497            }))
 5498            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5499                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5500            }))
 5501            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5502                workspace.activate_next_pane(window, cx)
 5503            }))
 5504            .on_action(cx.listener(
 5505                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5506                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5507                },
 5508            ))
 5509            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5510                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5511            }))
 5512            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5513                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5514            }))
 5515            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5516                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5517            }))
 5518            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5519                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5520            }))
 5521            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5522                this.toggle_dock(DockPosition::Left, window, cx);
 5523            }))
 5524            .on_action(cx.listener(
 5525                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5526                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5527                },
 5528            ))
 5529            .on_action(cx.listener(
 5530                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5531                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5532                },
 5533            ))
 5534            .on_action(cx.listener(
 5535                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5536                    if !workspace.close_active_dock(window, cx) {
 5537                        cx.propagate();
 5538                    }
 5539                },
 5540            ))
 5541            .on_action(
 5542                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5543                    workspace.close_all_docks(window, cx);
 5544                }),
 5545            )
 5546            .on_action(cx.listener(
 5547                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5548                    workspace.clear_all_notifications(cx);
 5549                },
 5550            ))
 5551            .on_action(cx.listener(
 5552                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5553                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5554                        workspace.suppress_notification(&notification_id, cx);
 5555                    }
 5556                },
 5557            ))
 5558            .on_action(cx.listener(
 5559                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5560                    workspace.reopen_closed_item(window, cx).detach();
 5561                },
 5562            ))
 5563            .on_action(cx.listener(
 5564                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5565                    for dock in workspace.all_docks() {
 5566                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5567                            let Some(panel) = dock.read(cx).active_panel() else {
 5568                                return;
 5569                            };
 5570
 5571                            // Set to `None`, then the size will fall back to the default.
 5572                            panel.clone().set_size(None, window, cx);
 5573
 5574                            return;
 5575                        }
 5576                    }
 5577                },
 5578            ))
 5579            .on_action(cx.listener(
 5580                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5581                    for dock in workspace.all_docks() {
 5582                        if let Some(panel) = dock.read(cx).visible_panel() {
 5583                            // Set to `None`, then the size will fall back to the default.
 5584                            panel.clone().set_size(None, window, cx);
 5585                        }
 5586                    }
 5587                },
 5588            ))
 5589            .on_action(cx.listener(
 5590                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5591                    adjust_active_dock_size_by_px(
 5592                        px_with_ui_font_fallback(act.px, cx),
 5593                        workspace,
 5594                        window,
 5595                        cx,
 5596                    );
 5597                },
 5598            ))
 5599            .on_action(cx.listener(
 5600                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5601                    adjust_active_dock_size_by_px(
 5602                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5603                        workspace,
 5604                        window,
 5605                        cx,
 5606                    );
 5607                },
 5608            ))
 5609            .on_action(cx.listener(
 5610                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5611                    adjust_open_docks_size_by_px(
 5612                        px_with_ui_font_fallback(act.px, cx),
 5613                        workspace,
 5614                        window,
 5615                        cx,
 5616                    );
 5617                },
 5618            ))
 5619            .on_action(cx.listener(
 5620                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5621                    adjust_open_docks_size_by_px(
 5622                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5623                        workspace,
 5624                        window,
 5625                        cx,
 5626                    );
 5627                },
 5628            ))
 5629            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5630            .on_action(cx.listener(Workspace::cancel))
 5631    }
 5632
 5633    #[cfg(any(test, feature = "test-support"))]
 5634    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5635        use node_runtime::NodeRuntime;
 5636        use session::Session;
 5637
 5638        let client = project.read(cx).client();
 5639        let user_store = project.read(cx).user_store();
 5640
 5641        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5642        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5643        window.activate_window();
 5644        let app_state = Arc::new(AppState {
 5645            languages: project.read(cx).languages().clone(),
 5646            workspace_store,
 5647            client,
 5648            user_store,
 5649            fs: project.read(cx).fs().clone(),
 5650            build_window_options: |_, _| Default::default(),
 5651            node_runtime: NodeRuntime::unavailable(),
 5652            session,
 5653        });
 5654        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5655        workspace
 5656            .active_pane
 5657            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5658        workspace
 5659    }
 5660
 5661    pub fn register_action<A: Action>(
 5662        &mut self,
 5663        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5664    ) -> &mut Self {
 5665        let callback = Arc::new(callback);
 5666
 5667        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5668            let callback = callback.clone();
 5669            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5670                (callback)(workspace, event, window, cx)
 5671            }))
 5672        }));
 5673        self
 5674    }
 5675    pub fn register_action_renderer(
 5676        &mut self,
 5677        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5678    ) -> &mut Self {
 5679        self.workspace_actions.push(Box::new(callback));
 5680        self
 5681    }
 5682
 5683    fn add_workspace_actions_listeners(
 5684        &self,
 5685        mut div: Div,
 5686        window: &mut Window,
 5687        cx: &mut Context<Self>,
 5688    ) -> Div {
 5689        for action in self.workspace_actions.iter() {
 5690            div = (action)(div, self, window, cx)
 5691        }
 5692        div
 5693    }
 5694
 5695    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5696        self.modal_layer.read(cx).has_active_modal()
 5697    }
 5698
 5699    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5700        self.modal_layer.read(cx).active_modal()
 5701    }
 5702
 5703    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5704    where
 5705        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5706    {
 5707        self.modal_layer.update(cx, |modal_layer, cx| {
 5708            modal_layer.toggle_modal(window, cx, build)
 5709        })
 5710    }
 5711
 5712    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 5713        self.toast_layer
 5714            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 5715    }
 5716
 5717    pub fn toggle_centered_layout(
 5718        &mut self,
 5719        _: &ToggleCenteredLayout,
 5720        _: &mut Window,
 5721        cx: &mut Context<Self>,
 5722    ) {
 5723        self.centered_layout = !self.centered_layout;
 5724        if let Some(database_id) = self.database_id() {
 5725            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 5726                .detach_and_log_err(cx);
 5727        }
 5728        cx.notify();
 5729    }
 5730
 5731    fn adjust_padding(padding: Option<f32>) -> f32 {
 5732        padding
 5733            .unwrap_or(Self::DEFAULT_PADDING)
 5734            .clamp(0.0, Self::MAX_PADDING)
 5735    }
 5736
 5737    fn render_dock(
 5738        &self,
 5739        position: DockPosition,
 5740        dock: &Entity<Dock>,
 5741        window: &mut Window,
 5742        cx: &mut App,
 5743    ) -> Option<Div> {
 5744        if self.zoomed_position == Some(position) {
 5745            return None;
 5746        }
 5747
 5748        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 5749            let pane = panel.pane(cx)?;
 5750            let follower_states = &self.follower_states;
 5751            leader_border_for_pane(follower_states, &pane, window, cx)
 5752        });
 5753
 5754        Some(
 5755            div()
 5756                .flex()
 5757                .flex_none()
 5758                .overflow_hidden()
 5759                .child(dock.clone())
 5760                .children(leader_border),
 5761        )
 5762    }
 5763
 5764    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 5765        window.root().flatten()
 5766    }
 5767
 5768    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 5769        self.zoomed.as_ref()
 5770    }
 5771
 5772    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 5773        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5774            return;
 5775        };
 5776        let windows = cx.windows();
 5777        let Some(next_window) = windows
 5778            .iter()
 5779            .cycle()
 5780            .skip_while(|window| window.window_id() != current_window_id)
 5781            .nth(1)
 5782        else {
 5783            return;
 5784        };
 5785        next_window
 5786            .update(cx, |_, window, _| window.activate_window())
 5787            .ok();
 5788    }
 5789
 5790    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 5791        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5792            return;
 5793        };
 5794        let windows = cx.windows();
 5795        let Some(prev_window) = windows
 5796            .iter()
 5797            .rev()
 5798            .cycle()
 5799            .skip_while(|window| window.window_id() != current_window_id)
 5800            .nth(1)
 5801        else {
 5802            return;
 5803        };
 5804        prev_window
 5805            .update(cx, |_, window, _| window.activate_window())
 5806            .ok();
 5807    }
 5808
 5809    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 5810        if cx.stop_active_drag(window) {
 5811            return;
 5812        } else if let Some((notification_id, _)) = self.notifications.pop() {
 5813            dismiss_app_notification(&notification_id, cx);
 5814        } else {
 5815            cx.propagate();
 5816        }
 5817    }
 5818
 5819    fn adjust_dock_size_by_px(
 5820        &mut self,
 5821        panel_size: Pixels,
 5822        dock_pos: DockPosition,
 5823        px: Pixels,
 5824        window: &mut Window,
 5825        cx: &mut Context<Self>,
 5826    ) {
 5827        match dock_pos {
 5828            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 5829            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 5830            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 5831        }
 5832    }
 5833
 5834    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5835        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 5836
 5837        self.left_dock.update(cx, |left_dock, cx| {
 5838            if WorkspaceSettings::get_global(cx)
 5839                .resize_all_panels_in_dock
 5840                .contains(&DockPosition::Left)
 5841            {
 5842                left_dock.resize_all_panels(Some(size), window, cx);
 5843            } else {
 5844                left_dock.resize_active_panel(Some(size), window, cx);
 5845            }
 5846        });
 5847    }
 5848
 5849    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5850        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 5851        self.left_dock.read_with(cx, |left_dock, cx| {
 5852            let left_dock_size = left_dock
 5853                .active_panel_size(window, cx)
 5854                .unwrap_or(Pixels(0.0));
 5855            if left_dock_size + size > self.bounds.right() {
 5856                size = self.bounds.right() - left_dock_size
 5857            }
 5858        });
 5859        self.right_dock.update(cx, |right_dock, cx| {
 5860            if WorkspaceSettings::get_global(cx)
 5861                .resize_all_panels_in_dock
 5862                .contains(&DockPosition::Right)
 5863            {
 5864                right_dock.resize_all_panels(Some(size), window, cx);
 5865            } else {
 5866                right_dock.resize_active_panel(Some(size), window, cx);
 5867            }
 5868        });
 5869    }
 5870
 5871    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5872        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 5873        self.bottom_dock.update(cx, |bottom_dock, cx| {
 5874            if WorkspaceSettings::get_global(cx)
 5875                .resize_all_panels_in_dock
 5876                .contains(&DockPosition::Bottom)
 5877            {
 5878                bottom_dock.resize_all_panels(Some(size), window, cx);
 5879            } else {
 5880                bottom_dock.resize_active_panel(Some(size), window, cx);
 5881            }
 5882        });
 5883    }
 5884}
 5885
 5886fn leader_border_for_pane(
 5887    follower_states: &HashMap<CollaboratorId, FollowerState>,
 5888    pane: &Entity<Pane>,
 5889    _: &Window,
 5890    cx: &App,
 5891) -> Option<Div> {
 5892    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 5893        if state.pane() == pane {
 5894            Some((*leader_id, state))
 5895        } else {
 5896            None
 5897        }
 5898    })?;
 5899
 5900    let mut leader_color = match leader_id {
 5901        CollaboratorId::PeerId(leader_peer_id) => {
 5902            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 5903            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 5904
 5905            cx.theme()
 5906                .players()
 5907                .color_for_participant(leader.participant_index.0)
 5908                .cursor
 5909        }
 5910        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 5911    };
 5912    leader_color.fade_out(0.3);
 5913    Some(
 5914        div()
 5915            .absolute()
 5916            .size_full()
 5917            .left_0()
 5918            .top_0()
 5919            .border_2()
 5920            .border_color(leader_color),
 5921    )
 5922}
 5923
 5924fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 5925    ZED_WINDOW_POSITION
 5926        .zip(*ZED_WINDOW_SIZE)
 5927        .map(|(position, size)| Bounds {
 5928            origin: position,
 5929            size,
 5930        })
 5931}
 5932
 5933fn open_items(
 5934    serialized_workspace: Option<SerializedWorkspace>,
 5935    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 5936    window: &mut Window,
 5937    cx: &mut Context<Workspace>,
 5938) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 5939    let restored_items = serialized_workspace.map(|serialized_workspace| {
 5940        Workspace::load_workspace(
 5941            serialized_workspace,
 5942            project_paths_to_open
 5943                .iter()
 5944                .map(|(_, project_path)| project_path)
 5945                .cloned()
 5946                .collect(),
 5947            window,
 5948            cx,
 5949        )
 5950    });
 5951
 5952    cx.spawn_in(window, async move |workspace, cx| {
 5953        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 5954
 5955        if let Some(restored_items) = restored_items {
 5956            let restored_items = restored_items.await?;
 5957
 5958            let restored_project_paths = restored_items
 5959                .iter()
 5960                .filter_map(|item| {
 5961                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 5962                        .ok()
 5963                        .flatten()
 5964                })
 5965                .collect::<HashSet<_>>();
 5966
 5967            for restored_item in restored_items {
 5968                opened_items.push(restored_item.map(Ok));
 5969            }
 5970
 5971            project_paths_to_open
 5972                .iter_mut()
 5973                .for_each(|(_, project_path)| {
 5974                    if let Some(project_path_to_open) = project_path {
 5975                        if restored_project_paths.contains(project_path_to_open) {
 5976                            *project_path = None;
 5977                        }
 5978                    }
 5979                });
 5980        } else {
 5981            for _ in 0..project_paths_to_open.len() {
 5982                opened_items.push(None);
 5983            }
 5984        }
 5985        assert!(opened_items.len() == project_paths_to_open.len());
 5986
 5987        let tasks =
 5988            project_paths_to_open
 5989                .into_iter()
 5990                .enumerate()
 5991                .map(|(ix, (abs_path, project_path))| {
 5992                    let workspace = workspace.clone();
 5993                    cx.spawn(async move |cx| {
 5994                        let file_project_path = project_path?;
 5995                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 5996                            workspace.project().update(cx, |project, cx| {
 5997                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 5998                            })
 5999                        });
 6000
 6001                        // We only want to open file paths here. If one of the items
 6002                        // here is a directory, it was already opened further above
 6003                        // with a `find_or_create_worktree`.
 6004                        if let Ok(task) = abs_path_task {
 6005                            if task.await.map_or(true, |p| p.is_file()) {
 6006                                return Some((
 6007                                    ix,
 6008                                    workspace
 6009                                        .update_in(cx, |workspace, window, cx| {
 6010                                            workspace.open_path(
 6011                                                file_project_path,
 6012                                                None,
 6013                                                true,
 6014                                                window,
 6015                                                cx,
 6016                                            )
 6017                                        })
 6018                                        .log_err()?
 6019                                        .await,
 6020                                ));
 6021                            }
 6022                        }
 6023                        None
 6024                    })
 6025                });
 6026
 6027        let tasks = tasks.collect::<Vec<_>>();
 6028
 6029        let tasks = futures::future::join_all(tasks);
 6030        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6031            opened_items[ix] = Some(path_open_result);
 6032        }
 6033
 6034        Ok(opened_items)
 6035    })
 6036}
 6037
 6038enum ActivateInDirectionTarget {
 6039    Pane(Entity<Pane>),
 6040    Dock(Entity<Dock>),
 6041}
 6042
 6043fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6044    workspace
 6045        .update(cx, |workspace, _, cx| {
 6046            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6047                struct DatabaseFailedNotification;
 6048
 6049                workspace.show_notification(
 6050                    NotificationId::unique::<DatabaseFailedNotification>(),
 6051                    cx,
 6052                    |cx| {
 6053                        cx.new(|cx| {
 6054                            MessageNotification::new("Failed to load the database file.", cx)
 6055                                .primary_message("File an Issue")
 6056                                .primary_icon(IconName::Plus)
 6057                                .primary_on_click(|window, cx| {
 6058                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6059                                })
 6060                        })
 6061                    },
 6062                );
 6063            }
 6064        })
 6065        .log_err();
 6066}
 6067
 6068fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6069    if val == 0 {
 6070        ThemeSettings::get_global(cx).ui_font_size(cx)
 6071    } else {
 6072        px(val as f32)
 6073    }
 6074}
 6075
 6076fn adjust_active_dock_size_by_px(
 6077    px: Pixels,
 6078    workspace: &mut Workspace,
 6079    window: &mut Window,
 6080    cx: &mut Context<Workspace>,
 6081) {
 6082    let Some(active_dock) = workspace
 6083        .all_docks()
 6084        .into_iter()
 6085        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6086    else {
 6087        return;
 6088    };
 6089    let dock = active_dock.read(cx);
 6090    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6091        return;
 6092    };
 6093    let dock_pos = dock.position();
 6094    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6095}
 6096
 6097fn adjust_open_docks_size_by_px(
 6098    px: Pixels,
 6099    workspace: &mut Workspace,
 6100    window: &mut Window,
 6101    cx: &mut Context<Workspace>,
 6102) {
 6103    let docks = workspace
 6104        .all_docks()
 6105        .into_iter()
 6106        .filter_map(|dock| {
 6107            if dock.read(cx).is_open() {
 6108                let dock = dock.read(cx);
 6109                let panel_size = dock.active_panel_size(window, cx)?;
 6110                let dock_pos = dock.position();
 6111                Some((panel_size, dock_pos, px))
 6112            } else {
 6113                None
 6114            }
 6115        })
 6116        .collect::<Vec<_>>();
 6117
 6118    docks
 6119        .into_iter()
 6120        .for_each(|(panel_size, dock_pos, offset)| {
 6121            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6122        });
 6123}
 6124
 6125impl Focusable for Workspace {
 6126    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6127        self.active_pane.focus_handle(cx)
 6128    }
 6129}
 6130
 6131#[derive(Clone)]
 6132struct DraggedDock(DockPosition);
 6133
 6134impl Render for DraggedDock {
 6135    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6136        gpui::Empty
 6137    }
 6138}
 6139
 6140impl Render for Workspace {
 6141    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6142        let mut context = KeyContext::new_with_defaults();
 6143        context.add("Workspace");
 6144        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6145        if let Some(status) = self
 6146            .debugger_provider
 6147            .as_ref()
 6148            .and_then(|provider| provider.active_thread_state(cx))
 6149        {
 6150            match status {
 6151                ThreadStatus::Running | ThreadStatus::Stepping => {
 6152                    context.add("debugger_running");
 6153                }
 6154                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6155                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6156            }
 6157        }
 6158
 6159        let centered_layout = self.centered_layout
 6160            && self.center.panes().len() == 1
 6161            && self.active_item(cx).is_some();
 6162        let render_padding = |size| {
 6163            (size > 0.0).then(|| {
 6164                div()
 6165                    .h_full()
 6166                    .w(relative(size))
 6167                    .bg(cx.theme().colors().editor_background)
 6168                    .border_color(cx.theme().colors().pane_group_border)
 6169            })
 6170        };
 6171        let paddings = if centered_layout {
 6172            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6173            (
 6174                render_padding(Self::adjust_padding(settings.left_padding)),
 6175                render_padding(Self::adjust_padding(settings.right_padding)),
 6176            )
 6177        } else {
 6178            (None, None)
 6179        };
 6180        let ui_font = theme::setup_ui_font(window, cx);
 6181
 6182        let theme = cx.theme().clone();
 6183        let colors = theme.colors();
 6184        let notification_entities = self
 6185            .notifications
 6186            .iter()
 6187            .map(|(_, notification)| notification.entity_id())
 6188            .collect::<Vec<_>>();
 6189
 6190        client_side_decorations(
 6191            self.actions(div(), window, cx)
 6192                .key_context(context)
 6193                .relative()
 6194                .size_full()
 6195                .flex()
 6196                .flex_col()
 6197                .font(ui_font)
 6198                .gap_0()
 6199                .justify_start()
 6200                .items_start()
 6201                .text_color(colors.text)
 6202                .overflow_hidden()
 6203                .children(self.titlebar_item.clone())
 6204                .on_modifiers_changed(move |_, _, cx| {
 6205                    for &id in &notification_entities {
 6206                        cx.notify(id);
 6207                    }
 6208                })
 6209                .child(
 6210                    div()
 6211                        .size_full()
 6212                        .relative()
 6213                        .flex_1()
 6214                        .flex()
 6215                        .flex_col()
 6216                        .child(
 6217                            div()
 6218                                .id("workspace")
 6219                                .bg(colors.background)
 6220                                .relative()
 6221                                .flex_1()
 6222                                .w_full()
 6223                                .flex()
 6224                                .flex_col()
 6225                                .overflow_hidden()
 6226                                .border_t_1()
 6227                                .border_b_1()
 6228                                .border_color(colors.border)
 6229                                .child({
 6230                                    let this = cx.entity().clone();
 6231                                    canvas(
 6232                                        move |bounds, window, cx| {
 6233                                            this.update(cx, |this, cx| {
 6234                                                let bounds_changed = this.bounds != bounds;
 6235                                                this.bounds = bounds;
 6236
 6237                                                if bounds_changed {
 6238                                                    this.left_dock.update(cx, |dock, cx| {
 6239                                                        dock.clamp_panel_size(
 6240                                                            bounds.size.width,
 6241                                                            window,
 6242                                                            cx,
 6243                                                        )
 6244                                                    });
 6245
 6246                                                    this.right_dock.update(cx, |dock, cx| {
 6247                                                        dock.clamp_panel_size(
 6248                                                            bounds.size.width,
 6249                                                            window,
 6250                                                            cx,
 6251                                                        )
 6252                                                    });
 6253
 6254                                                    this.bottom_dock.update(cx, |dock, cx| {
 6255                                                        dock.clamp_panel_size(
 6256                                                            bounds.size.height,
 6257                                                            window,
 6258                                                            cx,
 6259                                                        )
 6260                                                    });
 6261                                                }
 6262                                            })
 6263                                        },
 6264                                        |_, _, _, _| {},
 6265                                    )
 6266                                    .absolute()
 6267                                    .size_full()
 6268                                })
 6269                                .when(self.zoomed.is_none(), |this| {
 6270                                    this.on_drag_move(cx.listener(
 6271                                        move |workspace,
 6272                                              e: &DragMoveEvent<DraggedDock>,
 6273                                              window,
 6274                                              cx| {
 6275                                            if workspace.previous_dock_drag_coordinates
 6276                                                != Some(e.event.position)
 6277                                            {
 6278                                                workspace.previous_dock_drag_coordinates =
 6279                                                    Some(e.event.position);
 6280                                                match e.drag(cx).0 {
 6281                                                    DockPosition::Left => {
 6282                                                        workspace.resize_left_dock(
 6283                                                            e.event.position.x
 6284                                                                - workspace.bounds.left(),
 6285                                                            window,
 6286                                                            cx,
 6287                                                        );
 6288                                                    }
 6289                                                    DockPosition::Right => {
 6290                                                        workspace.resize_right_dock(
 6291                                                            workspace.bounds.right()
 6292                                                                - e.event.position.x,
 6293                                                            window,
 6294                                                            cx,
 6295                                                        );
 6296                                                    }
 6297                                                    DockPosition::Bottom => {
 6298                                                        workspace.resize_bottom_dock(
 6299                                                            workspace.bounds.bottom()
 6300                                                                - e.event.position.y,
 6301                                                            window,
 6302                                                            cx,
 6303                                                        );
 6304                                                    }
 6305                                                };
 6306                                                workspace.serialize_workspace(window, cx);
 6307                                            }
 6308                                        },
 6309                                    ))
 6310                                })
 6311                                .child({
 6312                                    match self.bottom_dock_layout {
 6313                                        BottomDockLayout::Full => div()
 6314                                            .flex()
 6315                                            .flex_col()
 6316                                            .h_full()
 6317                                            .child(
 6318                                                div()
 6319                                                    .flex()
 6320                                                    .flex_row()
 6321                                                    .flex_1()
 6322                                                    .overflow_hidden()
 6323                                                    .children(self.render_dock(
 6324                                                        DockPosition::Left,
 6325                                                        &self.left_dock,
 6326                                                        window,
 6327                                                        cx,
 6328                                                    ))
 6329                                                    .child(
 6330                                                        div()
 6331                                                            .flex()
 6332                                                            .flex_col()
 6333                                                            .flex_1()
 6334                                                            .overflow_hidden()
 6335                                                            .child(
 6336                                                                h_flex()
 6337                                                                    .flex_1()
 6338                                                                    .when_some(
 6339                                                                        paddings.0,
 6340                                                                        |this, p| {
 6341                                                                            this.child(
 6342                                                                                p.border_r_1(),
 6343                                                                            )
 6344                                                                        },
 6345                                                                    )
 6346                                                                    .child(self.center.render(
 6347                                                                        self.zoomed.as_ref(),
 6348                                                                        &PaneRenderContext {
 6349                                                                            follower_states:
 6350                                                                                &self.follower_states,
 6351                                                                            active_call: self.active_call(),
 6352                                                                            active_pane: &self.active_pane,
 6353                                                                            app_state: &self.app_state,
 6354                                                                            project: &self.project,
 6355                                                                            workspace: &self.weak_self,
 6356                                                                        },
 6357                                                                        window,
 6358                                                                        cx,
 6359                                                                    ))
 6360                                                                    .when_some(
 6361                                                                        paddings.1,
 6362                                                                        |this, p| {
 6363                                                                            this.child(
 6364                                                                                p.border_l_1(),
 6365                                                                            )
 6366                                                                        },
 6367                                                                    ),
 6368                                                            ),
 6369                                                    )
 6370                                                    .children(self.render_dock(
 6371                                                        DockPosition::Right,
 6372                                                        &self.right_dock,
 6373                                                        window,
 6374                                                        cx,
 6375                                                    )),
 6376                                            )
 6377                                            .child(div().w_full().children(self.render_dock(
 6378                                                DockPosition::Bottom,
 6379                                                &self.bottom_dock,
 6380                                                window,
 6381                                                cx
 6382                                            ))),
 6383
 6384                                        BottomDockLayout::LeftAligned => div()
 6385                                            .flex()
 6386                                            .flex_row()
 6387                                            .h_full()
 6388                                            .child(
 6389                                                div()
 6390                                                    .flex()
 6391                                                    .flex_col()
 6392                                                    .flex_1()
 6393                                                    .h_full()
 6394                                                    .child(
 6395                                                        div()
 6396                                                            .flex()
 6397                                                            .flex_row()
 6398                                                            .flex_1()
 6399                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6400                                                            .child(
 6401                                                                div()
 6402                                                                    .flex()
 6403                                                                    .flex_col()
 6404                                                                    .flex_1()
 6405                                                                    .overflow_hidden()
 6406                                                                    .child(
 6407                                                                        h_flex()
 6408                                                                            .flex_1()
 6409                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6410                                                                            .child(self.center.render(
 6411                                                                                self.zoomed.as_ref(),
 6412                                                                                &PaneRenderContext {
 6413                                                                                    follower_states:
 6414                                                                                        &self.follower_states,
 6415                                                                                    active_call: self.active_call(),
 6416                                                                                    active_pane: &self.active_pane,
 6417                                                                                    app_state: &self.app_state,
 6418                                                                                    project: &self.project,
 6419                                                                                    workspace: &self.weak_self,
 6420                                                                                },
 6421                                                                                window,
 6422                                                                                cx,
 6423                                                                            ))
 6424                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6425                                                                    )
 6426                                                            )
 6427                                                    )
 6428                                                    .child(
 6429                                                        div()
 6430                                                            .w_full()
 6431                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6432                                                    ),
 6433                                            )
 6434                                            .children(self.render_dock(
 6435                                                DockPosition::Right,
 6436                                                &self.right_dock,
 6437                                                window,
 6438                                                cx,
 6439                                            )),
 6440
 6441                                        BottomDockLayout::RightAligned => div()
 6442                                            .flex()
 6443                                            .flex_row()
 6444                                            .h_full()
 6445                                            .children(self.render_dock(
 6446                                                DockPosition::Left,
 6447                                                &self.left_dock,
 6448                                                window,
 6449                                                cx,
 6450                                            ))
 6451                                            .child(
 6452                                                div()
 6453                                                    .flex()
 6454                                                    .flex_col()
 6455                                                    .flex_1()
 6456                                                    .h_full()
 6457                                                    .child(
 6458                                                        div()
 6459                                                            .flex()
 6460                                                            .flex_row()
 6461                                                            .flex_1()
 6462                                                            .child(
 6463                                                                div()
 6464                                                                    .flex()
 6465                                                                    .flex_col()
 6466                                                                    .flex_1()
 6467                                                                    .overflow_hidden()
 6468                                                                    .child(
 6469                                                                        h_flex()
 6470                                                                            .flex_1()
 6471                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6472                                                                            .child(self.center.render(
 6473                                                                                self.zoomed.as_ref(),
 6474                                                                                &PaneRenderContext {
 6475                                                                                    follower_states:
 6476                                                                                        &self.follower_states,
 6477                                                                                    active_call: self.active_call(),
 6478                                                                                    active_pane: &self.active_pane,
 6479                                                                                    app_state: &self.app_state,
 6480                                                                                    project: &self.project,
 6481                                                                                    workspace: &self.weak_self,
 6482                                                                                },
 6483                                                                                window,
 6484                                                                                cx,
 6485                                                                            ))
 6486                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6487                                                                    )
 6488                                                            )
 6489                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6490                                                    )
 6491                                                    .child(
 6492                                                        div()
 6493                                                            .w_full()
 6494                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6495                                                    ),
 6496                                            ),
 6497
 6498                                        BottomDockLayout::Contained => div()
 6499                                            .flex()
 6500                                            .flex_row()
 6501                                            .h_full()
 6502                                            .children(self.render_dock(
 6503                                                DockPosition::Left,
 6504                                                &self.left_dock,
 6505                                                window,
 6506                                                cx,
 6507                                            ))
 6508                                            .child(
 6509                                                div()
 6510                                                    .flex()
 6511                                                    .flex_col()
 6512                                                    .flex_1()
 6513                                                    .overflow_hidden()
 6514                                                    .child(
 6515                                                        h_flex()
 6516                                                            .flex_1()
 6517                                                            .when_some(paddings.0, |this, p| {
 6518                                                                this.child(p.border_r_1())
 6519                                                            })
 6520                                                            .child(self.center.render(
 6521                                                                self.zoomed.as_ref(),
 6522                                                                &PaneRenderContext {
 6523                                                                    follower_states:
 6524                                                                        &self.follower_states,
 6525                                                                    active_call: self.active_call(),
 6526                                                                    active_pane: &self.active_pane,
 6527                                                                    app_state: &self.app_state,
 6528                                                                    project: &self.project,
 6529                                                                    workspace: &self.weak_self,
 6530                                                                },
 6531                                                                window,
 6532                                                                cx,
 6533                                                            ))
 6534                                                            .when_some(paddings.1, |this, p| {
 6535                                                                this.child(p.border_l_1())
 6536                                                            }),
 6537                                                    )
 6538                                                    .children(self.render_dock(
 6539                                                        DockPosition::Bottom,
 6540                                                        &self.bottom_dock,
 6541                                                        window,
 6542                                                        cx,
 6543                                                    )),
 6544                                            )
 6545                                            .children(self.render_dock(
 6546                                                DockPosition::Right,
 6547                                                &self.right_dock,
 6548                                                window,
 6549                                                cx,
 6550                                            )),
 6551                                    }
 6552                                })
 6553                                .children(self.zoomed.as_ref().and_then(|view| {
 6554                                    let zoomed_view = view.upgrade()?;
 6555                                    let div = div()
 6556                                        .occlude()
 6557                                        .absolute()
 6558                                        .overflow_hidden()
 6559                                        .border_color(colors.border)
 6560                                        .bg(colors.background)
 6561                                        .child(zoomed_view)
 6562                                        .inset_0()
 6563                                        .shadow_lg();
 6564
 6565                                    Some(match self.zoomed_position {
 6566                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 6567                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 6568                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 6569                                        None => {
 6570                                            div.top_2().bottom_2().left_2().right_2().border_1()
 6571                                        }
 6572                                    })
 6573                                }))
 6574                                .children(self.render_notifications(window, cx)),
 6575                        )
 6576                        .child(self.status_bar.clone())
 6577                        .child(self.modal_layer.clone())
 6578                        .child(self.toast_layer.clone()),
 6579                ),
 6580            window,
 6581            cx,
 6582        )
 6583    }
 6584}
 6585
 6586impl WorkspaceStore {
 6587    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6588        Self {
 6589            workspaces: Default::default(),
 6590            _subscriptions: vec![
 6591                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6592                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6593            ],
 6594            client,
 6595        }
 6596    }
 6597
 6598    pub fn update_followers(
 6599        &self,
 6600        project_id: Option<u64>,
 6601        update: proto::update_followers::Variant,
 6602        cx: &App,
 6603    ) -> Option<()> {
 6604        let active_call = ActiveCall::try_global(cx)?;
 6605        let room_id = active_call.read(cx).room()?.read(cx).id();
 6606        self.client
 6607            .send(proto::UpdateFollowers {
 6608                room_id,
 6609                project_id,
 6610                variant: Some(update),
 6611            })
 6612            .log_err()
 6613    }
 6614
 6615    pub async fn handle_follow(
 6616        this: Entity<Self>,
 6617        envelope: TypedEnvelope<proto::Follow>,
 6618        mut cx: AsyncApp,
 6619    ) -> Result<proto::FollowResponse> {
 6620        this.update(&mut cx, |this, cx| {
 6621            let follower = Follower {
 6622                project_id: envelope.payload.project_id,
 6623                peer_id: envelope.original_sender_id()?,
 6624            };
 6625
 6626            let mut response = proto::FollowResponse::default();
 6627            this.workspaces.retain(|workspace| {
 6628                workspace
 6629                    .update(cx, |workspace, window, cx| {
 6630                        let handler_response =
 6631                            workspace.handle_follow(follower.project_id, window, cx);
 6632                        if let Some(active_view) = handler_response.active_view.clone() {
 6633                            if workspace.project.read(cx).remote_id() == follower.project_id {
 6634                                response.active_view = Some(active_view)
 6635                            }
 6636                        }
 6637                    })
 6638                    .is_ok()
 6639            });
 6640
 6641            Ok(response)
 6642        })?
 6643    }
 6644
 6645    async fn handle_update_followers(
 6646        this: Entity<Self>,
 6647        envelope: TypedEnvelope<proto::UpdateFollowers>,
 6648        mut cx: AsyncApp,
 6649    ) -> Result<()> {
 6650        let leader_id = envelope.original_sender_id()?;
 6651        let update = envelope.payload;
 6652
 6653        this.update(&mut cx, |this, cx| {
 6654            this.workspaces.retain(|workspace| {
 6655                workspace
 6656                    .update(cx, |workspace, window, cx| {
 6657                        let project_id = workspace.project.read(cx).remote_id();
 6658                        if update.project_id != project_id && update.project_id.is_some() {
 6659                            return;
 6660                        }
 6661                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 6662                    })
 6663                    .is_ok()
 6664            });
 6665            Ok(())
 6666        })?
 6667    }
 6668
 6669    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 6670        &self.workspaces
 6671    }
 6672}
 6673
 6674impl ViewId {
 6675    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 6676        Ok(Self {
 6677            creator: message
 6678                .creator
 6679                .map(CollaboratorId::PeerId)
 6680                .context("creator is missing")?,
 6681            id: message.id,
 6682        })
 6683    }
 6684
 6685    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 6686        if let CollaboratorId::PeerId(peer_id) = self.creator {
 6687            Some(proto::ViewId {
 6688                creator: Some(peer_id),
 6689                id: self.id,
 6690            })
 6691        } else {
 6692            None
 6693        }
 6694    }
 6695}
 6696
 6697impl FollowerState {
 6698    fn pane(&self) -> &Entity<Pane> {
 6699        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 6700    }
 6701}
 6702
 6703pub trait WorkspaceHandle {
 6704    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 6705}
 6706
 6707impl WorkspaceHandle for Entity<Workspace> {
 6708    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 6709        self.read(cx)
 6710            .worktrees(cx)
 6711            .flat_map(|worktree| {
 6712                let worktree_id = worktree.read(cx).id();
 6713                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 6714                    worktree_id,
 6715                    path: f.path.clone(),
 6716                })
 6717            })
 6718            .collect::<Vec<_>>()
 6719    }
 6720}
 6721
 6722impl std::fmt::Debug for OpenPaths {
 6723    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 6724        f.debug_struct("OpenPaths")
 6725            .field("paths", &self.paths)
 6726            .finish()
 6727    }
 6728}
 6729
 6730pub async fn last_opened_workspace_location() -> Option<SerializedWorkspaceLocation> {
 6731    DB.last_workspace().await.log_err().flatten()
 6732}
 6733
 6734pub fn last_session_workspace_locations(
 6735    last_session_id: &str,
 6736    last_session_window_stack: Option<Vec<WindowId>>,
 6737) -> Option<Vec<SerializedWorkspaceLocation>> {
 6738    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 6739        .log_err()
 6740}
 6741
 6742actions!(
 6743    collab,
 6744    [
 6745        /// Opens the channel notes for the current call.
 6746        ///
 6747        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 6748        /// can be copied via "Copy link to section" in the context menu of the channel notes
 6749        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 6750        OpenChannelNotes,
 6751        /// Mutes your microphone.
 6752        Mute,
 6753        /// Deafens yourself (mute both microphone and speakers).
 6754        Deafen,
 6755        /// Leaves the current call.
 6756        LeaveCall,
 6757        /// Shares the current project with collaborators.
 6758        ShareProject,
 6759        /// Shares your screen with collaborators.
 6760        ScreenShare
 6761    ]
 6762);
 6763actions!(
 6764    zed,
 6765    [
 6766        /// Opens the Zed log file.
 6767        OpenLog
 6768    ]
 6769);
 6770
 6771async fn join_channel_internal(
 6772    channel_id: ChannelId,
 6773    app_state: &Arc<AppState>,
 6774    requesting_window: Option<WindowHandle<Workspace>>,
 6775    active_call: &Entity<ActiveCall>,
 6776    cx: &mut AsyncApp,
 6777) -> Result<bool> {
 6778    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 6779        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 6780            return (false, None);
 6781        };
 6782
 6783        let already_in_channel = room.channel_id() == Some(channel_id);
 6784        let should_prompt = room.is_sharing_project()
 6785            && !room.remote_participants().is_empty()
 6786            && !already_in_channel;
 6787        let open_room = if already_in_channel {
 6788            active_call.room().cloned()
 6789        } else {
 6790            None
 6791        };
 6792        (should_prompt, open_room)
 6793    })?;
 6794
 6795    if let Some(room) = open_room {
 6796        let task = room.update(cx, |room, cx| {
 6797            if let Some((project, host)) = room.most_active_project(cx) {
 6798                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6799            }
 6800
 6801            None
 6802        })?;
 6803        if let Some(task) = task {
 6804            task.await?;
 6805        }
 6806        return anyhow::Ok(true);
 6807    }
 6808
 6809    if should_prompt {
 6810        if let Some(workspace) = requesting_window {
 6811            let answer = workspace
 6812                .update(cx, |_, window, cx| {
 6813                    window.prompt(
 6814                        PromptLevel::Warning,
 6815                        "Do you want to switch channels?",
 6816                        Some("Leaving this call will unshare your current project."),
 6817                        &["Yes, Join Channel", "Cancel"],
 6818                        cx,
 6819                    )
 6820                })?
 6821                .await;
 6822
 6823            if answer == Ok(1) {
 6824                return Ok(false);
 6825            }
 6826        } else {
 6827            return Ok(false); // unreachable!() hopefully
 6828        }
 6829    }
 6830
 6831    let client = cx.update(|cx| active_call.read(cx).client())?;
 6832
 6833    let mut client_status = client.status();
 6834
 6835    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 6836    'outer: loop {
 6837        let Some(status) = client_status.recv().await else {
 6838            anyhow::bail!("error connecting");
 6839        };
 6840
 6841        match status {
 6842            Status::Connecting
 6843            | Status::Authenticating
 6844            | Status::Reconnecting
 6845            | Status::Reauthenticating => continue,
 6846            Status::Connected { .. } => break 'outer,
 6847            Status::SignedOut => return Err(ErrorCode::SignedOut.into()),
 6848            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 6849            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 6850                return Err(ErrorCode::Disconnected.into());
 6851            }
 6852        }
 6853    }
 6854
 6855    let room = active_call
 6856        .update(cx, |active_call, cx| {
 6857            active_call.join_channel(channel_id, cx)
 6858        })?
 6859        .await?;
 6860
 6861    let Some(room) = room else {
 6862        return anyhow::Ok(true);
 6863    };
 6864
 6865    room.update(cx, |room, _| room.room_update_completed())?
 6866        .await;
 6867
 6868    let task = room.update(cx, |room, cx| {
 6869        if let Some((project, host)) = room.most_active_project(cx) {
 6870            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6871        }
 6872
 6873        // If you are the first to join a channel, see if you should share your project.
 6874        if room.remote_participants().is_empty() && !room.local_participant_is_guest() {
 6875            if let Some(workspace) = requesting_window {
 6876                let project = workspace.update(cx, |workspace, _, cx| {
 6877                    let project = workspace.project.read(cx);
 6878
 6879                    if !CallSettings::get_global(cx).share_on_join {
 6880                        return None;
 6881                    }
 6882
 6883                    if (project.is_local() || project.is_via_ssh())
 6884                        && project.visible_worktrees(cx).any(|tree| {
 6885                            tree.read(cx)
 6886                                .root_entry()
 6887                                .map_or(false, |entry| entry.is_dir())
 6888                        })
 6889                    {
 6890                        Some(workspace.project.clone())
 6891                    } else {
 6892                        None
 6893                    }
 6894                });
 6895                if let Ok(Some(project)) = project {
 6896                    return Some(cx.spawn(async move |room, cx| {
 6897                        room.update(cx, |room, cx| room.share_project(project, cx))?
 6898                            .await?;
 6899                        Ok(())
 6900                    }));
 6901                }
 6902            }
 6903        }
 6904
 6905        None
 6906    })?;
 6907    if let Some(task) = task {
 6908        task.await?;
 6909        return anyhow::Ok(true);
 6910    }
 6911    anyhow::Ok(false)
 6912}
 6913
 6914pub fn join_channel(
 6915    channel_id: ChannelId,
 6916    app_state: Arc<AppState>,
 6917    requesting_window: Option<WindowHandle<Workspace>>,
 6918    cx: &mut App,
 6919) -> Task<Result<()>> {
 6920    let active_call = ActiveCall::global(cx);
 6921    cx.spawn(async move |cx| {
 6922        let result = join_channel_internal(
 6923            channel_id,
 6924            &app_state,
 6925            requesting_window,
 6926            &active_call,
 6927             cx,
 6928        )
 6929            .await;
 6930
 6931        // join channel succeeded, and opened a window
 6932        if matches!(result, Ok(true)) {
 6933            return anyhow::Ok(());
 6934        }
 6935
 6936        // find an existing workspace to focus and show call controls
 6937        let mut active_window =
 6938            requesting_window.or_else(|| activate_any_workspace_window( cx));
 6939        if active_window.is_none() {
 6940            // no open workspaces, make one to show the error in (blergh)
 6941            let (window_handle, _) = cx
 6942                .update(|cx| {
 6943                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 6944                })?
 6945                .await?;
 6946
 6947            if result.is_ok() {
 6948                cx.update(|cx| {
 6949                    cx.dispatch_action(&OpenChannelNotes);
 6950                }).log_err();
 6951            }
 6952
 6953            active_window = Some(window_handle);
 6954        }
 6955
 6956        if let Err(err) = result {
 6957            log::error!("failed to join channel: {}", err);
 6958            if let Some(active_window) = active_window {
 6959                active_window
 6960                    .update(cx, |_, window, cx| {
 6961                        let detail: SharedString = match err.error_code() {
 6962                            ErrorCode::SignedOut => {
 6963                                "Please sign in to continue.".into()
 6964                            }
 6965                            ErrorCode::UpgradeRequired => {
 6966                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 6967                            }
 6968                            ErrorCode::NoSuchChannel => {
 6969                                "No matching channel was found. Please check the link and try again.".into()
 6970                            }
 6971                            ErrorCode::Forbidden => {
 6972                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 6973                            }
 6974                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 6975                            _ => format!("{}\n\nPlease try again.", err).into(),
 6976                        };
 6977                        window.prompt(
 6978                            PromptLevel::Critical,
 6979                            "Failed to join channel",
 6980                            Some(&detail),
 6981                            &["Ok"],
 6982                        cx)
 6983                    })?
 6984                    .await
 6985                    .ok();
 6986            }
 6987        }
 6988
 6989        // return ok, we showed the error to the user.
 6990        anyhow::Ok(())
 6991    })
 6992}
 6993
 6994pub async fn get_any_active_workspace(
 6995    app_state: Arc<AppState>,
 6996    mut cx: AsyncApp,
 6997) -> anyhow::Result<WindowHandle<Workspace>> {
 6998    // find an existing workspace to focus and show call controls
 6999    let active_window = activate_any_workspace_window(&mut cx);
 7000    if active_window.is_none() {
 7001        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7002            .await?;
 7003    }
 7004    activate_any_workspace_window(&mut cx).context("could not open zed")
 7005}
 7006
 7007fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7008    cx.update(|cx| {
 7009        if let Some(workspace_window) = cx
 7010            .active_window()
 7011            .and_then(|window| window.downcast::<Workspace>())
 7012        {
 7013            return Some(workspace_window);
 7014        }
 7015
 7016        for window in cx.windows() {
 7017            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7018                workspace_window
 7019                    .update(cx, |_, window, _| window.activate_window())
 7020                    .ok();
 7021                return Some(workspace_window);
 7022            }
 7023        }
 7024        None
 7025    })
 7026    .ok()
 7027    .flatten()
 7028}
 7029
 7030pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7031    cx.windows()
 7032        .into_iter()
 7033        .filter_map(|window| window.downcast::<Workspace>())
 7034        .filter(|workspace| {
 7035            workspace
 7036                .read(cx)
 7037                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7038        })
 7039        .collect()
 7040}
 7041
 7042#[derive(Default)]
 7043pub struct OpenOptions {
 7044    pub visible: Option<OpenVisible>,
 7045    pub focus: Option<bool>,
 7046    pub open_new_workspace: Option<bool>,
 7047    pub replace_window: Option<WindowHandle<Workspace>>,
 7048    pub env: Option<HashMap<String, String>>,
 7049}
 7050
 7051#[allow(clippy::type_complexity)]
 7052pub fn open_paths(
 7053    abs_paths: &[PathBuf],
 7054    app_state: Arc<AppState>,
 7055    open_options: OpenOptions,
 7056    cx: &mut App,
 7057) -> Task<
 7058    anyhow::Result<(
 7059        WindowHandle<Workspace>,
 7060        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7061    )>,
 7062> {
 7063    let abs_paths = abs_paths.to_vec();
 7064    let mut existing = None;
 7065    let mut best_match = None;
 7066    let mut open_visible = OpenVisible::All;
 7067
 7068    cx.spawn(async move |cx| {
 7069        if open_options.open_new_workspace != Some(true) {
 7070            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7071            let all_metadatas = futures::future::join_all(all_paths)
 7072                .await
 7073                .into_iter()
 7074                .filter_map(|result| result.ok().flatten())
 7075                .collect::<Vec<_>>();
 7076
 7077            cx.update(|cx| {
 7078                for window in local_workspace_windows(&cx) {
 7079                    if let Ok(workspace) = window.read(&cx) {
 7080                        let m = workspace.project.read(&cx).visibility_for_paths(
 7081                            &abs_paths,
 7082                            &all_metadatas,
 7083                            open_options.open_new_workspace == None,
 7084                            cx,
 7085                        );
 7086                        if m > best_match {
 7087                            existing = Some(window);
 7088                            best_match = m;
 7089                        } else if best_match.is_none()
 7090                            && open_options.open_new_workspace == Some(false)
 7091                        {
 7092                            existing = Some(window)
 7093                        }
 7094                    }
 7095                }
 7096            })?;
 7097
 7098            if open_options.open_new_workspace.is_none() && existing.is_none() {
 7099                if all_metadatas.iter().all(|file| !file.is_dir) {
 7100                    cx.update(|cx| {
 7101                        if let Some(window) = cx
 7102                            .active_window()
 7103                            .and_then(|window| window.downcast::<Workspace>())
 7104                        {
 7105                            if let Ok(workspace) = window.read(cx) {
 7106                                let project = workspace.project().read(cx);
 7107                                if project.is_local() && !project.is_via_collab() {
 7108                                    existing = Some(window);
 7109                                    open_visible = OpenVisible::None;
 7110                                    return;
 7111                                }
 7112                            }
 7113                        }
 7114                        for window in local_workspace_windows(cx) {
 7115                            if let Ok(workspace) = window.read(cx) {
 7116                                let project = workspace.project().read(cx);
 7117                                if project.is_via_collab() {
 7118                                    continue;
 7119                                }
 7120                                existing = Some(window);
 7121                                open_visible = OpenVisible::None;
 7122                                break;
 7123                            }
 7124                        }
 7125                    })?;
 7126                }
 7127            }
 7128        }
 7129
 7130        if let Some(existing) = existing {
 7131            let open_task = existing
 7132                .update(cx, |workspace, window, cx| {
 7133                    window.activate_window();
 7134                    workspace.open_paths(
 7135                        abs_paths,
 7136                        OpenOptions {
 7137                            visible: Some(open_visible),
 7138                            ..Default::default()
 7139                        },
 7140                        None,
 7141                        window,
 7142                        cx,
 7143                    )
 7144                })?
 7145                .await;
 7146
 7147            _ = existing.update(cx, |workspace, _, cx| {
 7148                for item in open_task.iter().flatten() {
 7149                    if let Err(e) = item {
 7150                        workspace.show_error(&e, cx);
 7151                    }
 7152                }
 7153            });
 7154
 7155            Ok((existing, open_task))
 7156        } else {
 7157            cx.update(move |cx| {
 7158                Workspace::new_local(
 7159                    abs_paths,
 7160                    app_state.clone(),
 7161                    open_options.replace_window,
 7162                    open_options.env,
 7163                    cx,
 7164                )
 7165            })?
 7166            .await
 7167        }
 7168    })
 7169}
 7170
 7171pub fn open_new(
 7172    open_options: OpenOptions,
 7173    app_state: Arc<AppState>,
 7174    cx: &mut App,
 7175    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7176) -> Task<anyhow::Result<()>> {
 7177    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7178    cx.spawn(async move |cx| {
 7179        let (workspace, opened_paths) = task.await?;
 7180        workspace.update(cx, |workspace, window, cx| {
 7181            if opened_paths.is_empty() {
 7182                init(workspace, window, cx)
 7183            }
 7184        })?;
 7185        Ok(())
 7186    })
 7187}
 7188
 7189pub fn create_and_open_local_file(
 7190    path: &'static Path,
 7191    window: &mut Window,
 7192    cx: &mut Context<Workspace>,
 7193    default_content: impl 'static + Send + FnOnce() -> Rope,
 7194) -> Task<Result<Box<dyn ItemHandle>>> {
 7195    cx.spawn_in(window, async move |workspace, cx| {
 7196        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7197        if !fs.is_file(path).await {
 7198            fs.create_file(path, Default::default()).await?;
 7199            fs.save(path, &default_content(), Default::default())
 7200                .await?;
 7201        }
 7202
 7203        let mut items = workspace
 7204            .update_in(cx, |workspace, window, cx| {
 7205                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7206                    workspace.open_paths(
 7207                        vec![path.to_path_buf()],
 7208                        OpenOptions {
 7209                            visible: Some(OpenVisible::None),
 7210                            ..Default::default()
 7211                        },
 7212                        None,
 7213                        window,
 7214                        cx,
 7215                    )
 7216                })
 7217            })?
 7218            .await?
 7219            .await;
 7220
 7221        let item = items.pop().flatten();
 7222        item.with_context(|| format!("path {path:?} is not a file"))?
 7223    })
 7224}
 7225
 7226pub fn open_ssh_project_with_new_connection(
 7227    window: WindowHandle<Workspace>,
 7228    connection_options: SshConnectionOptions,
 7229    cancel_rx: oneshot::Receiver<()>,
 7230    delegate: Arc<dyn SshClientDelegate>,
 7231    app_state: Arc<AppState>,
 7232    paths: Vec<PathBuf>,
 7233    cx: &mut App,
 7234) -> Task<Result<()>> {
 7235    cx.spawn(async move |cx| {
 7236        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7237            serialize_ssh_project(connection_options.clone(), paths.clone(), &cx).await?;
 7238
 7239        let session = match cx
 7240            .update(|cx| {
 7241                remote::SshRemoteClient::new(
 7242                    ConnectionIdentifier::Workspace(workspace_id.0),
 7243                    connection_options,
 7244                    cancel_rx,
 7245                    delegate,
 7246                    cx,
 7247                )
 7248            })?
 7249            .await?
 7250        {
 7251            Some(result) => result,
 7252            None => return Ok(()),
 7253        };
 7254
 7255        let project = cx.update(|cx| {
 7256            project::Project::ssh(
 7257                session,
 7258                app_state.client.clone(),
 7259                app_state.node_runtime.clone(),
 7260                app_state.user_store.clone(),
 7261                app_state.languages.clone(),
 7262                app_state.fs.clone(),
 7263                cx,
 7264            )
 7265        })?;
 7266
 7267        open_ssh_project_inner(
 7268            project,
 7269            paths,
 7270            serialized_ssh_project,
 7271            workspace_id,
 7272            serialized_workspace,
 7273            app_state,
 7274            window,
 7275            cx,
 7276        )
 7277        .await
 7278    })
 7279}
 7280
 7281pub fn open_ssh_project_with_existing_connection(
 7282    connection_options: SshConnectionOptions,
 7283    project: Entity<Project>,
 7284    paths: Vec<PathBuf>,
 7285    app_state: Arc<AppState>,
 7286    window: WindowHandle<Workspace>,
 7287    cx: &mut AsyncApp,
 7288) -> Task<Result<()>> {
 7289    cx.spawn(async move |cx| {
 7290        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7291            serialize_ssh_project(connection_options.clone(), paths.clone(), &cx).await?;
 7292
 7293        open_ssh_project_inner(
 7294            project,
 7295            paths,
 7296            serialized_ssh_project,
 7297            workspace_id,
 7298            serialized_workspace,
 7299            app_state,
 7300            window,
 7301            cx,
 7302        )
 7303        .await
 7304    })
 7305}
 7306
 7307async fn open_ssh_project_inner(
 7308    project: Entity<Project>,
 7309    paths: Vec<PathBuf>,
 7310    serialized_ssh_project: SerializedSshProject,
 7311    workspace_id: WorkspaceId,
 7312    serialized_workspace: Option<SerializedWorkspace>,
 7313    app_state: Arc<AppState>,
 7314    window: WindowHandle<Workspace>,
 7315    cx: &mut AsyncApp,
 7316) -> Result<()> {
 7317    let toolchains = DB.toolchains(workspace_id).await?;
 7318    for (toolchain, worktree_id, path) in toolchains {
 7319        project
 7320            .update(cx, |this, cx| {
 7321                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7322            })?
 7323            .await;
 7324    }
 7325    let mut project_paths_to_open = vec![];
 7326    let mut project_path_errors = vec![];
 7327
 7328    for path in paths {
 7329        let result = cx
 7330            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7331            .await;
 7332        match result {
 7333            Ok((_, project_path)) => {
 7334                project_paths_to_open.push((path.clone(), Some(project_path)));
 7335            }
 7336            Err(error) => {
 7337                project_path_errors.push(error);
 7338            }
 7339        };
 7340    }
 7341
 7342    if project_paths_to_open.is_empty() {
 7343        return Err(project_path_errors.pop().context("no paths given")?);
 7344    }
 7345
 7346    cx.update_window(window.into(), |_, window, cx| {
 7347        window.replace_root(cx, |window, cx| {
 7348            telemetry::event!("SSH Project Opened");
 7349
 7350            let mut workspace =
 7351                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7352            workspace.set_serialized_ssh_project(serialized_ssh_project);
 7353            workspace.update_history(cx);
 7354
 7355            if let Some(ref serialized) = serialized_workspace {
 7356                workspace.centered_layout = serialized.centered_layout;
 7357            }
 7358
 7359            workspace
 7360        });
 7361    })?;
 7362
 7363    window
 7364        .update(cx, |_, window, cx| {
 7365            window.activate_window();
 7366            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7367        })?
 7368        .await?;
 7369
 7370    window.update(cx, |workspace, _, cx| {
 7371        for error in project_path_errors {
 7372            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7373                if let Some(path) = error.error_tag("path") {
 7374                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7375                }
 7376            } else {
 7377                workspace.show_error(&error, cx)
 7378            }
 7379        }
 7380    })?;
 7381
 7382    Ok(())
 7383}
 7384
 7385fn serialize_ssh_project(
 7386    connection_options: SshConnectionOptions,
 7387    paths: Vec<PathBuf>,
 7388    cx: &AsyncApp,
 7389) -> Task<
 7390    Result<(
 7391        SerializedSshProject,
 7392        WorkspaceId,
 7393        Option<SerializedWorkspace>,
 7394    )>,
 7395> {
 7396    cx.background_spawn(async move {
 7397        let serialized_ssh_project = persistence::DB
 7398            .get_or_create_ssh_project(
 7399                connection_options.host.clone(),
 7400                connection_options.port,
 7401                paths
 7402                    .iter()
 7403                    .map(|path| path.to_string_lossy().to_string())
 7404                    .collect::<Vec<_>>(),
 7405                connection_options.username.clone(),
 7406            )
 7407            .await?;
 7408
 7409        let serialized_workspace =
 7410            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 7411
 7412        let workspace_id = if let Some(workspace_id) =
 7413            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7414        {
 7415            workspace_id
 7416        } else {
 7417            persistence::DB.next_id().await?
 7418        };
 7419
 7420        Ok((serialized_ssh_project, workspace_id, serialized_workspace))
 7421    })
 7422}
 7423
 7424pub fn join_in_room_project(
 7425    project_id: u64,
 7426    follow_user_id: u64,
 7427    app_state: Arc<AppState>,
 7428    cx: &mut App,
 7429) -> Task<Result<()>> {
 7430    let windows = cx.windows();
 7431    cx.spawn(async move |cx| {
 7432        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7433            window_handle
 7434                .downcast::<Workspace>()
 7435                .and_then(|window_handle| {
 7436                    window_handle
 7437                        .update(cx, |workspace, _window, cx| {
 7438                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7439                                Some(window_handle)
 7440                            } else {
 7441                                None
 7442                            }
 7443                        })
 7444                        .unwrap_or(None)
 7445                })
 7446        });
 7447
 7448        let workspace = if let Some(existing_workspace) = existing_workspace {
 7449            existing_workspace
 7450        } else {
 7451            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7452            let room = active_call
 7453                .read_with(cx, |call, _| call.room().cloned())?
 7454                .context("not in a call")?;
 7455            let project = room
 7456                .update(cx, |room, cx| {
 7457                    room.join_project(
 7458                        project_id,
 7459                        app_state.languages.clone(),
 7460                        app_state.fs.clone(),
 7461                        cx,
 7462                    )
 7463                })?
 7464                .await?;
 7465
 7466            let window_bounds_override = window_bounds_env_override();
 7467            cx.update(|cx| {
 7468                let mut options = (app_state.build_window_options)(None, cx);
 7469                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7470                cx.open_window(options, |window, cx| {
 7471                    cx.new(|cx| {
 7472                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7473                    })
 7474                })
 7475            })??
 7476        };
 7477
 7478        workspace.update(cx, |workspace, window, cx| {
 7479            cx.activate(true);
 7480            window.activate_window();
 7481
 7482            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7483                let follow_peer_id = room
 7484                    .read(cx)
 7485                    .remote_participants()
 7486                    .iter()
 7487                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7488                    .map(|(_, p)| p.peer_id)
 7489                    .or_else(|| {
 7490                        // If we couldn't follow the given user, follow the host instead.
 7491                        let collaborator = workspace
 7492                            .project()
 7493                            .read(cx)
 7494                            .collaborators()
 7495                            .values()
 7496                            .find(|collaborator| collaborator.is_host)?;
 7497                        Some(collaborator.peer_id)
 7498                    });
 7499
 7500                if let Some(follow_peer_id) = follow_peer_id {
 7501                    workspace.follow(follow_peer_id, window, cx);
 7502                }
 7503            }
 7504        })?;
 7505
 7506        anyhow::Ok(())
 7507    })
 7508}
 7509
 7510pub fn reload(reload: &Reload, cx: &mut App) {
 7511    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7512    let mut workspace_windows = cx
 7513        .windows()
 7514        .into_iter()
 7515        .filter_map(|window| window.downcast::<Workspace>())
 7516        .collect::<Vec<_>>();
 7517
 7518    // If multiple windows have unsaved changes, and need a save prompt,
 7519    // prompt in the active window before switching to a different window.
 7520    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7521
 7522    let mut prompt = None;
 7523    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7524        prompt = window
 7525            .update(cx, |_, window, cx| {
 7526                window.prompt(
 7527                    PromptLevel::Info,
 7528                    "Are you sure you want to restart?",
 7529                    None,
 7530                    &["Restart", "Cancel"],
 7531                    cx,
 7532                )
 7533            })
 7534            .ok();
 7535    }
 7536
 7537    let binary_path = reload.binary_path.clone();
 7538    cx.spawn(async move |cx| {
 7539        if let Some(prompt) = prompt {
 7540            let answer = prompt.await?;
 7541            if answer != 0 {
 7542                return Ok(());
 7543            }
 7544        }
 7545
 7546        // If the user cancels any save prompt, then keep the app open.
 7547        for window in workspace_windows {
 7548            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7549                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7550            }) {
 7551                if !should_close.await? {
 7552                    return Ok(());
 7553                }
 7554            }
 7555        }
 7556
 7557        cx.update(|cx| cx.restart(binary_path))
 7558    })
 7559    .detach_and_log_err(cx);
 7560}
 7561
 7562fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7563    let mut parts = value.split(',');
 7564    let x: usize = parts.next()?.parse().ok()?;
 7565    let y: usize = parts.next()?.parse().ok()?;
 7566    Some(point(px(x as f32), px(y as f32)))
 7567}
 7568
 7569fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7570    let mut parts = value.split(',');
 7571    let width: usize = parts.next()?.parse().ok()?;
 7572    let height: usize = parts.next()?.parse().ok()?;
 7573    Some(size(px(width as f32), px(height as f32)))
 7574}
 7575
 7576/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7577pub fn client_side_decorations(
 7578    element: impl IntoElement,
 7579    window: &mut Window,
 7580    cx: &mut App,
 7581) -> Stateful<Div> {
 7582    const BORDER_SIZE: Pixels = px(1.0);
 7583    let decorations = window.window_decorations();
 7584
 7585    match decorations {
 7586        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7587        Decorations::Server { .. } => window.set_client_inset(px(0.0)),
 7588    }
 7589
 7590    struct GlobalResizeEdge(ResizeEdge);
 7591    impl Global for GlobalResizeEdge {}
 7592
 7593    div()
 7594        .id("window-backdrop")
 7595        .bg(transparent_black())
 7596        .map(|div| match decorations {
 7597            Decorations::Server => div,
 7598            Decorations::Client { tiling, .. } => div
 7599                .when(!(tiling.top || tiling.right), |div| {
 7600                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7601                })
 7602                .when(!(tiling.top || tiling.left), |div| {
 7603                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7604                })
 7605                .when(!(tiling.bottom || tiling.right), |div| {
 7606                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7607                })
 7608                .when(!(tiling.bottom || tiling.left), |div| {
 7609                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7610                })
 7611                .when(!tiling.top, |div| {
 7612                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7613                })
 7614                .when(!tiling.bottom, |div| {
 7615                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7616                })
 7617                .when(!tiling.left, |div| {
 7618                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7619                })
 7620                .when(!tiling.right, |div| {
 7621                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7622                })
 7623                .on_mouse_move(move |e, window, cx| {
 7624                    let size = window.window_bounds().get_bounds().size;
 7625                    let pos = e.position;
 7626
 7627                    let new_edge =
 7628                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 7629
 7630                    let edge = cx.try_global::<GlobalResizeEdge>();
 7631                    if new_edge != edge.map(|edge| edge.0) {
 7632                        window
 7633                            .window_handle()
 7634                            .update(cx, |workspace, _, cx| {
 7635                                cx.notify(workspace.entity_id());
 7636                            })
 7637                            .ok();
 7638                    }
 7639                })
 7640                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 7641                    let size = window.window_bounds().get_bounds().size;
 7642                    let pos = e.position;
 7643
 7644                    let edge = match resize_edge(
 7645                        pos,
 7646                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 7647                        size,
 7648                        tiling,
 7649                    ) {
 7650                        Some(value) => value,
 7651                        None => return,
 7652                    };
 7653
 7654                    window.start_window_resize(edge);
 7655                }),
 7656        })
 7657        .size_full()
 7658        .child(
 7659            div()
 7660                .cursor(CursorStyle::Arrow)
 7661                .map(|div| match decorations {
 7662                    Decorations::Server => div,
 7663                    Decorations::Client { tiling } => div
 7664                        .border_color(cx.theme().colors().border)
 7665                        .when(!(tiling.top || tiling.right), |div| {
 7666                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7667                        })
 7668                        .when(!(tiling.top || tiling.left), |div| {
 7669                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7670                        })
 7671                        .when(!(tiling.bottom || tiling.right), |div| {
 7672                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7673                        })
 7674                        .when(!(tiling.bottom || tiling.left), |div| {
 7675                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7676                        })
 7677                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 7678                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 7679                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 7680                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 7681                        .when(!tiling.is_tiled(), |div| {
 7682                            div.shadow(vec![gpui::BoxShadow {
 7683                                color: Hsla {
 7684                                    h: 0.,
 7685                                    s: 0.,
 7686                                    l: 0.,
 7687                                    a: 0.4,
 7688                                },
 7689                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 7690                                spread_radius: px(0.),
 7691                                offset: point(px(0.0), px(0.0)),
 7692                            }])
 7693                        }),
 7694                })
 7695                .on_mouse_move(|_e, _, cx| {
 7696                    cx.stop_propagation();
 7697                })
 7698                .size_full()
 7699                .child(element),
 7700        )
 7701        .map(|div| match decorations {
 7702            Decorations::Server => div,
 7703            Decorations::Client { tiling, .. } => div.child(
 7704                canvas(
 7705                    |_bounds, window, _| {
 7706                        window.insert_hitbox(
 7707                            Bounds::new(
 7708                                point(px(0.0), px(0.0)),
 7709                                window.window_bounds().get_bounds().size,
 7710                            ),
 7711                            HitboxBehavior::Normal,
 7712                        )
 7713                    },
 7714                    move |_bounds, hitbox, window, cx| {
 7715                        let mouse = window.mouse_position();
 7716                        let size = window.window_bounds().get_bounds().size;
 7717                        let Some(edge) =
 7718                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 7719                        else {
 7720                            return;
 7721                        };
 7722                        cx.set_global(GlobalResizeEdge(edge));
 7723                        window.set_cursor_style(
 7724                            match edge {
 7725                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 7726                                ResizeEdge::Left | ResizeEdge::Right => {
 7727                                    CursorStyle::ResizeLeftRight
 7728                                }
 7729                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 7730                                    CursorStyle::ResizeUpLeftDownRight
 7731                                }
 7732                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 7733                                    CursorStyle::ResizeUpRightDownLeft
 7734                                }
 7735                            },
 7736                            &hitbox,
 7737                        );
 7738                    },
 7739                )
 7740                .size_full()
 7741                .absolute(),
 7742            ),
 7743        })
 7744}
 7745
 7746fn resize_edge(
 7747    pos: Point<Pixels>,
 7748    shadow_size: Pixels,
 7749    window_size: Size<Pixels>,
 7750    tiling: Tiling,
 7751) -> Option<ResizeEdge> {
 7752    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 7753    if bounds.contains(&pos) {
 7754        return None;
 7755    }
 7756
 7757    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 7758    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 7759    if !tiling.top && top_left_bounds.contains(&pos) {
 7760        return Some(ResizeEdge::TopLeft);
 7761    }
 7762
 7763    let top_right_bounds = Bounds::new(
 7764        Point::new(window_size.width - corner_size.width, px(0.)),
 7765        corner_size,
 7766    );
 7767    if !tiling.top && top_right_bounds.contains(&pos) {
 7768        return Some(ResizeEdge::TopRight);
 7769    }
 7770
 7771    let bottom_left_bounds = Bounds::new(
 7772        Point::new(px(0.), window_size.height - corner_size.height),
 7773        corner_size,
 7774    );
 7775    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 7776        return Some(ResizeEdge::BottomLeft);
 7777    }
 7778
 7779    let bottom_right_bounds = Bounds::new(
 7780        Point::new(
 7781            window_size.width - corner_size.width,
 7782            window_size.height - corner_size.height,
 7783        ),
 7784        corner_size,
 7785    );
 7786    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 7787        return Some(ResizeEdge::BottomRight);
 7788    }
 7789
 7790    if !tiling.top && pos.y < shadow_size {
 7791        Some(ResizeEdge::Top)
 7792    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 7793        Some(ResizeEdge::Bottom)
 7794    } else if !tiling.left && pos.x < shadow_size {
 7795        Some(ResizeEdge::Left)
 7796    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 7797        Some(ResizeEdge::Right)
 7798    } else {
 7799        None
 7800    }
 7801}
 7802
 7803fn join_pane_into_active(
 7804    active_pane: &Entity<Pane>,
 7805    pane: &Entity<Pane>,
 7806    window: &mut Window,
 7807    cx: &mut App,
 7808) {
 7809    if pane == active_pane {
 7810        return;
 7811    } else if pane.read(cx).items_len() == 0 {
 7812        pane.update(cx, |_, cx| {
 7813            cx.emit(pane::Event::Remove {
 7814                focus_on_pane: None,
 7815            });
 7816        })
 7817    } else {
 7818        move_all_items(pane, active_pane, window, cx);
 7819    }
 7820}
 7821
 7822fn move_all_items(
 7823    from_pane: &Entity<Pane>,
 7824    to_pane: &Entity<Pane>,
 7825    window: &mut Window,
 7826    cx: &mut App,
 7827) {
 7828    let destination_is_different = from_pane != to_pane;
 7829    let mut moved_items = 0;
 7830    for (item_ix, item_handle) in from_pane
 7831        .read(cx)
 7832        .items()
 7833        .enumerate()
 7834        .map(|(ix, item)| (ix, item.clone()))
 7835        .collect::<Vec<_>>()
 7836    {
 7837        let ix = item_ix - moved_items;
 7838        if destination_is_different {
 7839            // Close item from previous pane
 7840            from_pane.update(cx, |source, cx| {
 7841                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 7842            });
 7843            moved_items += 1;
 7844        }
 7845
 7846        // This automatically removes duplicate items in the pane
 7847        to_pane.update(cx, |destination, cx| {
 7848            destination.add_item(item_handle, true, true, None, window, cx);
 7849            window.focus(&destination.focus_handle(cx))
 7850        });
 7851    }
 7852}
 7853
 7854pub fn move_item(
 7855    source: &Entity<Pane>,
 7856    destination: &Entity<Pane>,
 7857    item_id_to_move: EntityId,
 7858    destination_index: usize,
 7859    activate: bool,
 7860    window: &mut Window,
 7861    cx: &mut App,
 7862) {
 7863    let Some((item_ix, item_handle)) = source
 7864        .read(cx)
 7865        .items()
 7866        .enumerate()
 7867        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 7868        .map(|(ix, item)| (ix, item.clone()))
 7869    else {
 7870        // Tab was closed during drag
 7871        return;
 7872    };
 7873
 7874    if source != destination {
 7875        // Close item from previous pane
 7876        source.update(cx, |source, cx| {
 7877            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 7878        });
 7879    }
 7880
 7881    // This automatically removes duplicate items in the pane
 7882    destination.update(cx, |destination, cx| {
 7883        destination.add_item_inner(
 7884            item_handle,
 7885            activate,
 7886            activate,
 7887            activate,
 7888            Some(destination_index),
 7889            window,
 7890            cx,
 7891        );
 7892        if activate {
 7893            window.focus(&destination.focus_handle(cx))
 7894        }
 7895    });
 7896}
 7897
 7898pub fn move_active_item(
 7899    source: &Entity<Pane>,
 7900    destination: &Entity<Pane>,
 7901    focus_destination: bool,
 7902    close_if_empty: bool,
 7903    window: &mut Window,
 7904    cx: &mut App,
 7905) {
 7906    if source == destination {
 7907        return;
 7908    }
 7909    let Some(active_item) = source.read(cx).active_item() else {
 7910        return;
 7911    };
 7912    source.update(cx, |source_pane, cx| {
 7913        let item_id = active_item.item_id();
 7914        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 7915        destination.update(cx, |target_pane, cx| {
 7916            target_pane.add_item(
 7917                active_item,
 7918                focus_destination,
 7919                focus_destination,
 7920                Some(target_pane.items_len()),
 7921                window,
 7922                cx,
 7923            );
 7924        });
 7925    });
 7926}
 7927
 7928pub fn clone_active_item(
 7929    workspace_id: Option<WorkspaceId>,
 7930    source: &Entity<Pane>,
 7931    destination: &Entity<Pane>,
 7932    focus_destination: bool,
 7933    window: &mut Window,
 7934    cx: &mut App,
 7935) {
 7936    if source == destination {
 7937        return;
 7938    }
 7939    let Some(active_item) = source.read(cx).active_item() else {
 7940        return;
 7941    };
 7942    destination.update(cx, |target_pane, cx| {
 7943        let Some(clone) = active_item.clone_on_split(workspace_id, window, cx) else {
 7944            return;
 7945        };
 7946        target_pane.add_item(
 7947            clone,
 7948            focus_destination,
 7949            focus_destination,
 7950            Some(target_pane.items_len()),
 7951            window,
 7952            cx,
 7953        );
 7954    });
 7955}
 7956
 7957#[derive(Debug)]
 7958pub struct WorkspacePosition {
 7959    pub window_bounds: Option<WindowBounds>,
 7960    pub display: Option<Uuid>,
 7961    pub centered_layout: bool,
 7962}
 7963
 7964pub fn ssh_workspace_position_from_db(
 7965    host: String,
 7966    port: Option<u16>,
 7967    user: Option<String>,
 7968    paths_to_open: &[PathBuf],
 7969    cx: &App,
 7970) -> Task<Result<WorkspacePosition>> {
 7971    let paths = paths_to_open
 7972        .iter()
 7973        .map(|path| path.to_string_lossy().to_string())
 7974        .collect::<Vec<_>>();
 7975
 7976    cx.background_spawn(async move {
 7977        let serialized_ssh_project = persistence::DB
 7978            .get_or_create_ssh_project(host, port, paths, user)
 7979            .await
 7980            .context("fetching serialized ssh project")?;
 7981        let serialized_workspace =
 7982            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 7983
 7984        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 7985            (Some(WindowBounds::Windowed(bounds)), None)
 7986        } else {
 7987            let restorable_bounds = serialized_workspace
 7988                .as_ref()
 7989                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 7990                .or_else(|| {
 7991                    let (display, window_bounds) = DB.last_window().log_err()?;
 7992                    Some((display?, window_bounds?))
 7993                });
 7994
 7995            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 7996                (Some(serialized_status.0), Some(serialized_display))
 7997            } else {
 7998                (None, None)
 7999            }
 8000        };
 8001
 8002        let centered_layout = serialized_workspace
 8003            .as_ref()
 8004            .map(|w| w.centered_layout)
 8005            .unwrap_or(false);
 8006
 8007        Ok(WorkspacePosition {
 8008            window_bounds,
 8009            display,
 8010            centered_layout,
 8011        })
 8012    })
 8013}
 8014
 8015pub fn with_active_or_new_workspace(
 8016    cx: &mut App,
 8017    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8018) {
 8019    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8020        Some(workspace) => {
 8021            cx.defer(move |cx| {
 8022                workspace
 8023                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8024                    .log_err();
 8025            });
 8026        }
 8027        None => {
 8028            let app_state = AppState::global(cx);
 8029            if let Some(app_state) = app_state.upgrade() {
 8030                open_new(
 8031                    OpenOptions::default(),
 8032                    app_state,
 8033                    cx,
 8034                    move |workspace, window, cx| f(workspace, window, cx),
 8035                )
 8036                .detach_and_log_err(cx);
 8037            }
 8038        }
 8039    }
 8040}
 8041
 8042#[cfg(test)]
 8043mod tests {
 8044    use std::{cell::RefCell, rc::Rc};
 8045
 8046    use super::*;
 8047    use crate::{
 8048        dock::{PanelEvent, test::TestPanel},
 8049        item::{
 8050            ItemEvent,
 8051            test::{TestItem, TestProjectItem},
 8052        },
 8053    };
 8054    use fs::FakeFs;
 8055    use gpui::{
 8056        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8057        UpdateGlobal, VisualTestContext, px,
 8058    };
 8059    use project::{Project, ProjectEntryId};
 8060    use serde_json::json;
 8061    use settings::SettingsStore;
 8062
 8063    #[gpui::test]
 8064    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8065        init_test(cx);
 8066
 8067        let fs = FakeFs::new(cx.executor());
 8068        let project = Project::test(fs, [], cx).await;
 8069        let (workspace, cx) =
 8070            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8071
 8072        // Adding an item with no ambiguity renders the tab without detail.
 8073        let item1 = cx.new(|cx| {
 8074            let mut item = TestItem::new(cx);
 8075            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8076            item
 8077        });
 8078        workspace.update_in(cx, |workspace, window, cx| {
 8079            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8080        });
 8081        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8082
 8083        // Adding an item that creates ambiguity increases the level of detail on
 8084        // both tabs.
 8085        let item2 = cx.new_window_entity(|_window, cx| {
 8086            let mut item = TestItem::new(cx);
 8087            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8088            item
 8089        });
 8090        workspace.update_in(cx, |workspace, window, cx| {
 8091            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8092        });
 8093        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8094        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8095
 8096        // Adding an item that creates ambiguity increases the level of detail only
 8097        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8098        // we stop at the highest detail available.
 8099        let item3 = cx.new(|cx| {
 8100            let mut item = TestItem::new(cx);
 8101            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8102            item
 8103        });
 8104        workspace.update_in(cx, |workspace, window, cx| {
 8105            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8106        });
 8107        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8108        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8109        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8110    }
 8111
 8112    #[gpui::test]
 8113    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8114        init_test(cx);
 8115
 8116        let fs = FakeFs::new(cx.executor());
 8117        fs.insert_tree(
 8118            "/root1",
 8119            json!({
 8120                "one.txt": "",
 8121                "two.txt": "",
 8122            }),
 8123        )
 8124        .await;
 8125        fs.insert_tree(
 8126            "/root2",
 8127            json!({
 8128                "three.txt": "",
 8129            }),
 8130        )
 8131        .await;
 8132
 8133        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8134        let (workspace, cx) =
 8135            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8136        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8137        let worktree_id = project.update(cx, |project, cx| {
 8138            project.worktrees(cx).next().unwrap().read(cx).id()
 8139        });
 8140
 8141        let item1 = cx.new(|cx| {
 8142            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8143        });
 8144        let item2 = cx.new(|cx| {
 8145            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8146        });
 8147
 8148        // Add an item to an empty pane
 8149        workspace.update_in(cx, |workspace, window, cx| {
 8150            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8151        });
 8152        project.update(cx, |project, cx| {
 8153            assert_eq!(
 8154                project.active_entry(),
 8155                project
 8156                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8157                    .map(|e| e.id)
 8158            );
 8159        });
 8160        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8161
 8162        // Add a second item to a non-empty pane
 8163        workspace.update_in(cx, |workspace, window, cx| {
 8164            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8165        });
 8166        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8167        project.update(cx, |project, cx| {
 8168            assert_eq!(
 8169                project.active_entry(),
 8170                project
 8171                    .entry_for_path(&(worktree_id, "two.txt").into(), cx)
 8172                    .map(|e| e.id)
 8173            );
 8174        });
 8175
 8176        // Close the active item
 8177        pane.update_in(cx, |pane, window, cx| {
 8178            pane.close_active_item(&Default::default(), window, cx)
 8179        })
 8180        .await
 8181        .unwrap();
 8182        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8183        project.update(cx, |project, cx| {
 8184            assert_eq!(
 8185                project.active_entry(),
 8186                project
 8187                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8188                    .map(|e| e.id)
 8189            );
 8190        });
 8191
 8192        // Add a project folder
 8193        project
 8194            .update(cx, |project, cx| {
 8195                project.find_or_create_worktree("root2", true, cx)
 8196            })
 8197            .await
 8198            .unwrap();
 8199        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8200
 8201        // Remove a project folder
 8202        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8203        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8204    }
 8205
 8206    #[gpui::test]
 8207    async fn test_close_window(cx: &mut TestAppContext) {
 8208        init_test(cx);
 8209
 8210        let fs = FakeFs::new(cx.executor());
 8211        fs.insert_tree("/root", json!({ "one": "" })).await;
 8212
 8213        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8214        let (workspace, cx) =
 8215            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8216
 8217        // When there are no dirty items, there's nothing to do.
 8218        let item1 = cx.new(TestItem::new);
 8219        workspace.update_in(cx, |w, window, cx| {
 8220            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8221        });
 8222        let task = workspace.update_in(cx, |w, window, cx| {
 8223            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8224        });
 8225        assert!(task.await.unwrap());
 8226
 8227        // When there are dirty untitled items, prompt to save each one. If the user
 8228        // cancels any prompt, then abort.
 8229        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8230        let item3 = cx.new(|cx| {
 8231            TestItem::new(cx)
 8232                .with_dirty(true)
 8233                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8234        });
 8235        workspace.update_in(cx, |w, window, cx| {
 8236            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8237            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8238        });
 8239        let task = workspace.update_in(cx, |w, window, cx| {
 8240            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8241        });
 8242        cx.executor().run_until_parked();
 8243        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8244        cx.executor().run_until_parked();
 8245        assert!(!cx.has_pending_prompt());
 8246        assert!(!task.await.unwrap());
 8247    }
 8248
 8249    #[gpui::test]
 8250    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8251        init_test(cx);
 8252
 8253        // Register TestItem as a serializable item
 8254        cx.update(|cx| {
 8255            register_serializable_item::<TestItem>(cx);
 8256        });
 8257
 8258        let fs = FakeFs::new(cx.executor());
 8259        fs.insert_tree("/root", json!({ "one": "" })).await;
 8260
 8261        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8262        let (workspace, cx) =
 8263            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8264
 8265        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8266        let item1 = cx.new(|cx| {
 8267            TestItem::new(cx)
 8268                .with_dirty(true)
 8269                .with_serialize(|| Some(Task::ready(Ok(()))))
 8270        });
 8271        let item2 = cx.new(|cx| {
 8272            TestItem::new(cx)
 8273                .with_dirty(true)
 8274                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8275                .with_serialize(|| Some(Task::ready(Ok(()))))
 8276        });
 8277        workspace.update_in(cx, |w, window, cx| {
 8278            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8279            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8280        });
 8281        let task = workspace.update_in(cx, |w, window, cx| {
 8282            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8283        });
 8284        assert!(task.await.unwrap());
 8285    }
 8286
 8287    #[gpui::test]
 8288    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8289        init_test(cx);
 8290
 8291        let fs = FakeFs::new(cx.executor());
 8292
 8293        let project = Project::test(fs, None, cx).await;
 8294        let (workspace, cx) =
 8295            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8296
 8297        let item1 = cx.new(|cx| {
 8298            TestItem::new(cx)
 8299                .with_dirty(true)
 8300                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8301        });
 8302        let item2 = cx.new(|cx| {
 8303            TestItem::new(cx)
 8304                .with_dirty(true)
 8305                .with_conflict(true)
 8306                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8307        });
 8308        let item3 = cx.new(|cx| {
 8309            TestItem::new(cx)
 8310                .with_dirty(true)
 8311                .with_conflict(true)
 8312                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8313        });
 8314        let item4 = cx.new(|cx| {
 8315            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8316                let project_item = TestProjectItem::new_untitled(cx);
 8317                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8318                project_item
 8319            }])
 8320        });
 8321        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8322            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8323            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8324            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8325            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8326            workspace.active_pane().clone()
 8327        });
 8328
 8329        let close_items = pane.update_in(cx, |pane, window, cx| {
 8330            pane.activate_item(1, true, true, window, cx);
 8331            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8332            let item1_id = item1.item_id();
 8333            let item3_id = item3.item_id();
 8334            let item4_id = item4.item_id();
 8335            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8336                [item1_id, item3_id, item4_id].contains(&id)
 8337            })
 8338        });
 8339        cx.executor().run_until_parked();
 8340
 8341        assert!(cx.has_pending_prompt());
 8342        cx.simulate_prompt_answer("Save all");
 8343
 8344        cx.executor().run_until_parked();
 8345
 8346        // Item 1 is saved. There's a prompt to save item 3.
 8347        pane.update(cx, |pane, cx| {
 8348            assert_eq!(item1.read(cx).save_count, 1);
 8349            assert_eq!(item1.read(cx).save_as_count, 0);
 8350            assert_eq!(item1.read(cx).reload_count, 0);
 8351            assert_eq!(pane.items_len(), 3);
 8352            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8353        });
 8354        assert!(cx.has_pending_prompt());
 8355
 8356        // Cancel saving item 3.
 8357        cx.simulate_prompt_answer("Discard");
 8358        cx.executor().run_until_parked();
 8359
 8360        // Item 3 is reloaded. There's a prompt to save item 4.
 8361        pane.update(cx, |pane, cx| {
 8362            assert_eq!(item3.read(cx).save_count, 0);
 8363            assert_eq!(item3.read(cx).save_as_count, 0);
 8364            assert_eq!(item3.read(cx).reload_count, 1);
 8365            assert_eq!(pane.items_len(), 2);
 8366            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8367        });
 8368
 8369        // There's a prompt for a path for item 4.
 8370        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8371        close_items.await.unwrap();
 8372
 8373        // The requested items are closed.
 8374        pane.update(cx, |pane, cx| {
 8375            assert_eq!(item4.read(cx).save_count, 0);
 8376            assert_eq!(item4.read(cx).save_as_count, 1);
 8377            assert_eq!(item4.read(cx).reload_count, 0);
 8378            assert_eq!(pane.items_len(), 1);
 8379            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8380        });
 8381    }
 8382
 8383    #[gpui::test]
 8384    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8385        init_test(cx);
 8386
 8387        let fs = FakeFs::new(cx.executor());
 8388        let project = Project::test(fs, [], cx).await;
 8389        let (workspace, cx) =
 8390            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8391
 8392        // Create several workspace items with single project entries, and two
 8393        // workspace items with multiple project entries.
 8394        let single_entry_items = (0..=4)
 8395            .map(|project_entry_id| {
 8396                cx.new(|cx| {
 8397                    TestItem::new(cx)
 8398                        .with_dirty(true)
 8399                        .with_project_items(&[dirty_project_item(
 8400                            project_entry_id,
 8401                            &format!("{project_entry_id}.txt"),
 8402                            cx,
 8403                        )])
 8404                })
 8405            })
 8406            .collect::<Vec<_>>();
 8407        let item_2_3 = cx.new(|cx| {
 8408            TestItem::new(cx)
 8409                .with_dirty(true)
 8410                .with_singleton(false)
 8411                .with_project_items(&[
 8412                    single_entry_items[2].read(cx).project_items[0].clone(),
 8413                    single_entry_items[3].read(cx).project_items[0].clone(),
 8414                ])
 8415        });
 8416        let item_3_4 = cx.new(|cx| {
 8417            TestItem::new(cx)
 8418                .with_dirty(true)
 8419                .with_singleton(false)
 8420                .with_project_items(&[
 8421                    single_entry_items[3].read(cx).project_items[0].clone(),
 8422                    single_entry_items[4].read(cx).project_items[0].clone(),
 8423                ])
 8424        });
 8425
 8426        // Create two panes that contain the following project entries:
 8427        //   left pane:
 8428        //     multi-entry items:   (2, 3)
 8429        //     single-entry items:  0, 2, 3, 4
 8430        //   right pane:
 8431        //     single-entry items:  4, 1
 8432        //     multi-entry items:   (3, 4)
 8433        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8434            let left_pane = workspace.active_pane().clone();
 8435            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8436            workspace.add_item_to_active_pane(
 8437                single_entry_items[0].boxed_clone(),
 8438                None,
 8439                true,
 8440                window,
 8441                cx,
 8442            );
 8443            workspace.add_item_to_active_pane(
 8444                single_entry_items[2].boxed_clone(),
 8445                None,
 8446                true,
 8447                window,
 8448                cx,
 8449            );
 8450            workspace.add_item_to_active_pane(
 8451                single_entry_items[3].boxed_clone(),
 8452                None,
 8453                true,
 8454                window,
 8455                cx,
 8456            );
 8457            workspace.add_item_to_active_pane(
 8458                single_entry_items[4].boxed_clone(),
 8459                None,
 8460                true,
 8461                window,
 8462                cx,
 8463            );
 8464
 8465            let right_pane = workspace
 8466                .split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx)
 8467                .unwrap();
 8468
 8469            right_pane.update(cx, |pane, cx| {
 8470                pane.add_item(
 8471                    single_entry_items[1].boxed_clone(),
 8472                    true,
 8473                    true,
 8474                    None,
 8475                    window,
 8476                    cx,
 8477                );
 8478                pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8479            });
 8480
 8481            (left_pane, right_pane)
 8482        });
 8483
 8484        cx.focus(&right_pane);
 8485
 8486        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8487            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8488                .unwrap()
 8489        });
 8490        cx.executor().run_until_parked();
 8491
 8492        let msg = cx.pending_prompt().unwrap().0;
 8493        assert!(msg.contains("1.txt"));
 8494        assert!(!msg.contains("2.txt"));
 8495        assert!(!msg.contains("3.txt"));
 8496        assert!(!msg.contains("4.txt"));
 8497
 8498        cx.simulate_prompt_answer("Cancel");
 8499        close.await;
 8500
 8501        left_pane
 8502            .update_in(cx, |left_pane, window, cx| {
 8503                left_pane.close_item_by_id(
 8504                    single_entry_items[3].entity_id(),
 8505                    SaveIntent::Skip,
 8506                    window,
 8507                    cx,
 8508                )
 8509            })
 8510            .await
 8511            .unwrap();
 8512
 8513        close = right_pane.update_in(cx, |pane, window, cx| {
 8514            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8515                .unwrap()
 8516        });
 8517        cx.executor().run_until_parked();
 8518
 8519        let details = cx.pending_prompt().unwrap().1;
 8520        assert!(details.contains("1.txt"));
 8521        assert!(!details.contains("2.txt"));
 8522        assert!(details.contains("3.txt"));
 8523        // ideally this assertion could be made, but today we can only
 8524        // save whole items not project items, so the orphaned item 3 causes
 8525        // 4 to be saved too.
 8526        // assert!(!details.contains("4.txt"));
 8527
 8528        cx.simulate_prompt_answer("Save all");
 8529
 8530        cx.executor().run_until_parked();
 8531        close.await;
 8532        right_pane.read_with(cx, |pane, _| {
 8533            assert_eq!(pane.items_len(), 0);
 8534        });
 8535    }
 8536
 8537    #[gpui::test]
 8538    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8539        init_test(cx);
 8540
 8541        let fs = FakeFs::new(cx.executor());
 8542        let project = Project::test(fs, [], cx).await;
 8543        let (workspace, cx) =
 8544            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8545        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8546
 8547        let item = cx.new(|cx| {
 8548            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8549        });
 8550        let item_id = item.entity_id();
 8551        workspace.update_in(cx, |workspace, window, cx| {
 8552            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8553        });
 8554
 8555        // Autosave on window change.
 8556        item.update(cx, |item, cx| {
 8557            SettingsStore::update_global(cx, |settings, cx| {
 8558                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8559                    settings.autosave = Some(AutosaveSetting::OnWindowChange);
 8560                })
 8561            });
 8562            item.is_dirty = true;
 8563        });
 8564
 8565        // Deactivating the window saves the file.
 8566        cx.deactivate_window();
 8567        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8568
 8569        // Re-activating the window doesn't save the file.
 8570        cx.update(|window, _| window.activate_window());
 8571        cx.executor().run_until_parked();
 8572        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8573
 8574        // Autosave on focus change.
 8575        item.update_in(cx, |item, window, cx| {
 8576            cx.focus_self(window);
 8577            SettingsStore::update_global(cx, |settings, cx| {
 8578                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8579                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8580                })
 8581            });
 8582            item.is_dirty = true;
 8583        });
 8584
 8585        // Blurring the item saves the file.
 8586        item.update_in(cx, |_, window, _| window.blur());
 8587        cx.executor().run_until_parked();
 8588        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8589
 8590        // Deactivating the window still saves the file.
 8591        item.update_in(cx, |item, window, cx| {
 8592            cx.focus_self(window);
 8593            item.is_dirty = true;
 8594        });
 8595        cx.deactivate_window();
 8596        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8597
 8598        // Autosave after delay.
 8599        item.update(cx, |item, cx| {
 8600            SettingsStore::update_global(cx, |settings, cx| {
 8601                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8602                    settings.autosave = Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
 8603                })
 8604            });
 8605            item.is_dirty = true;
 8606            cx.emit(ItemEvent::Edit);
 8607        });
 8608
 8609        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 8610        cx.executor().advance_clock(Duration::from_millis(250));
 8611        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 8612
 8613        // After delay expires, the file is saved.
 8614        cx.executor().advance_clock(Duration::from_millis(250));
 8615        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8616
 8617        // Autosave on focus change, ensuring closing the tab counts as such.
 8618        item.update(cx, |item, cx| {
 8619            SettingsStore::update_global(cx, |settings, cx| {
 8620                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8621                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8622                })
 8623            });
 8624            item.is_dirty = true;
 8625            for project_item in &mut item.project_items {
 8626                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8627            }
 8628        });
 8629
 8630        pane.update_in(cx, |pane, window, cx| {
 8631            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8632        })
 8633        .await
 8634        .unwrap();
 8635        assert!(!cx.has_pending_prompt());
 8636        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8637
 8638        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8639        workspace.update_in(cx, |workspace, window, cx| {
 8640            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8641        });
 8642        item.update_in(cx, |item, window, cx| {
 8643            item.project_items[0].update(cx, |item, _| {
 8644                item.entry_id = None;
 8645            });
 8646            item.is_dirty = true;
 8647            window.blur();
 8648        });
 8649        cx.run_until_parked();
 8650        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8651
 8652        // Ensure autosave is prevented for deleted files also when closing the buffer.
 8653        let _close_items = pane.update_in(cx, |pane, window, cx| {
 8654            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8655        });
 8656        cx.run_until_parked();
 8657        assert!(cx.has_pending_prompt());
 8658        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8659    }
 8660
 8661    #[gpui::test]
 8662    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 8663        init_test(cx);
 8664
 8665        let fs = FakeFs::new(cx.executor());
 8666
 8667        let project = Project::test(fs, [], cx).await;
 8668        let (workspace, cx) =
 8669            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8670
 8671        let item = cx.new(|cx| {
 8672            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8673        });
 8674        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8675        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 8676        let toolbar_notify_count = Rc::new(RefCell::new(0));
 8677
 8678        workspace.update_in(cx, |workspace, window, cx| {
 8679            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8680            let toolbar_notification_count = toolbar_notify_count.clone();
 8681            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 8682                *toolbar_notification_count.borrow_mut() += 1
 8683            })
 8684            .detach();
 8685        });
 8686
 8687        pane.read_with(cx, |pane, _| {
 8688            assert!(!pane.can_navigate_backward());
 8689            assert!(!pane.can_navigate_forward());
 8690        });
 8691
 8692        item.update_in(cx, |item, _, cx| {
 8693            item.set_state("one".to_string(), cx);
 8694        });
 8695
 8696        // Toolbar must be notified to re-render the navigation buttons
 8697        assert_eq!(*toolbar_notify_count.borrow(), 1);
 8698
 8699        pane.read_with(cx, |pane, _| {
 8700            assert!(pane.can_navigate_backward());
 8701            assert!(!pane.can_navigate_forward());
 8702        });
 8703
 8704        workspace
 8705            .update_in(cx, |workspace, window, cx| {
 8706                workspace.go_back(pane.downgrade(), window, cx)
 8707            })
 8708            .await
 8709            .unwrap();
 8710
 8711        assert_eq!(*toolbar_notify_count.borrow(), 2);
 8712        pane.read_with(cx, |pane, _| {
 8713            assert!(!pane.can_navigate_backward());
 8714            assert!(pane.can_navigate_forward());
 8715        });
 8716    }
 8717
 8718    #[gpui::test]
 8719    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 8720        init_test(cx);
 8721        let fs = FakeFs::new(cx.executor());
 8722
 8723        let project = Project::test(fs, [], cx).await;
 8724        let (workspace, cx) =
 8725            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8726
 8727        let panel = workspace.update_in(cx, |workspace, window, cx| {
 8728            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8729            workspace.add_panel(panel.clone(), window, cx);
 8730
 8731            workspace
 8732                .right_dock()
 8733                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 8734
 8735            panel
 8736        });
 8737
 8738        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8739        pane.update_in(cx, |pane, window, cx| {
 8740            let item = cx.new(TestItem::new);
 8741            pane.add_item(Box::new(item), true, true, None, window, cx);
 8742        });
 8743
 8744        // Transfer focus from center to panel
 8745        workspace.update_in(cx, |workspace, window, cx| {
 8746            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8747        });
 8748
 8749        workspace.update_in(cx, |workspace, window, cx| {
 8750            assert!(workspace.right_dock().read(cx).is_open());
 8751            assert!(!panel.is_zoomed(window, cx));
 8752            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8753        });
 8754
 8755        // Transfer focus from panel to center
 8756        workspace.update_in(cx, |workspace, window, cx| {
 8757            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8758        });
 8759
 8760        workspace.update_in(cx, |workspace, window, cx| {
 8761            assert!(workspace.right_dock().read(cx).is_open());
 8762            assert!(!panel.is_zoomed(window, cx));
 8763            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8764        });
 8765
 8766        // Close the dock
 8767        workspace.update_in(cx, |workspace, window, cx| {
 8768            workspace.toggle_dock(DockPosition::Right, window, cx);
 8769        });
 8770
 8771        workspace.update_in(cx, |workspace, window, cx| {
 8772            assert!(!workspace.right_dock().read(cx).is_open());
 8773            assert!(!panel.is_zoomed(window, cx));
 8774            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8775        });
 8776
 8777        // Open the dock
 8778        workspace.update_in(cx, |workspace, window, cx| {
 8779            workspace.toggle_dock(DockPosition::Right, window, cx);
 8780        });
 8781
 8782        workspace.update_in(cx, |workspace, window, cx| {
 8783            assert!(workspace.right_dock().read(cx).is_open());
 8784            assert!(!panel.is_zoomed(window, cx));
 8785            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8786        });
 8787
 8788        // Focus and zoom panel
 8789        panel.update_in(cx, |panel, window, cx| {
 8790            cx.focus_self(window);
 8791            panel.set_zoomed(true, window, cx)
 8792        });
 8793
 8794        workspace.update_in(cx, |workspace, window, cx| {
 8795            assert!(workspace.right_dock().read(cx).is_open());
 8796            assert!(panel.is_zoomed(window, cx));
 8797            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8798        });
 8799
 8800        // Transfer focus to the center closes the dock
 8801        workspace.update_in(cx, |workspace, window, cx| {
 8802            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8803        });
 8804
 8805        workspace.update_in(cx, |workspace, window, cx| {
 8806            assert!(!workspace.right_dock().read(cx).is_open());
 8807            assert!(panel.is_zoomed(window, cx));
 8808            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8809        });
 8810
 8811        // Transferring focus back to the panel keeps it zoomed
 8812        workspace.update_in(cx, |workspace, window, cx| {
 8813            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8814        });
 8815
 8816        workspace.update_in(cx, |workspace, window, cx| {
 8817            assert!(workspace.right_dock().read(cx).is_open());
 8818            assert!(panel.is_zoomed(window, cx));
 8819            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8820        });
 8821
 8822        // Close the dock while it is zoomed
 8823        workspace.update_in(cx, |workspace, window, cx| {
 8824            workspace.toggle_dock(DockPosition::Right, window, cx)
 8825        });
 8826
 8827        workspace.update_in(cx, |workspace, window, cx| {
 8828            assert!(!workspace.right_dock().read(cx).is_open());
 8829            assert!(panel.is_zoomed(window, cx));
 8830            assert!(workspace.zoomed.is_none());
 8831            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8832        });
 8833
 8834        // Opening the dock, when it's zoomed, retains focus
 8835        workspace.update_in(cx, |workspace, window, cx| {
 8836            workspace.toggle_dock(DockPosition::Right, window, cx)
 8837        });
 8838
 8839        workspace.update_in(cx, |workspace, window, cx| {
 8840            assert!(workspace.right_dock().read(cx).is_open());
 8841            assert!(panel.is_zoomed(window, cx));
 8842            assert!(workspace.zoomed.is_some());
 8843            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8844        });
 8845
 8846        // Unzoom and close the panel, zoom the active pane.
 8847        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 8848        workspace.update_in(cx, |workspace, window, cx| {
 8849            workspace.toggle_dock(DockPosition::Right, window, cx)
 8850        });
 8851        pane.update_in(cx, |pane, window, cx| {
 8852            pane.toggle_zoom(&Default::default(), window, cx)
 8853        });
 8854
 8855        // Opening a dock unzooms the pane.
 8856        workspace.update_in(cx, |workspace, window, cx| {
 8857            workspace.toggle_dock(DockPosition::Right, window, cx)
 8858        });
 8859        workspace.update_in(cx, |workspace, window, cx| {
 8860            let pane = pane.read(cx);
 8861            assert!(!pane.is_zoomed());
 8862            assert!(!pane.focus_handle(cx).is_focused(window));
 8863            assert!(workspace.right_dock().read(cx).is_open());
 8864            assert!(workspace.zoomed.is_none());
 8865        });
 8866    }
 8867
 8868    #[gpui::test]
 8869    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 8870        init_test(cx);
 8871
 8872        let fs = FakeFs::new(cx.executor());
 8873
 8874        let project = Project::test(fs, None, cx).await;
 8875        let (workspace, cx) =
 8876            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8877
 8878        // Let's arrange the panes like this:
 8879        //
 8880        // +-----------------------+
 8881        // |         top           |
 8882        // +------+--------+-------+
 8883        // | left | center | right |
 8884        // +------+--------+-------+
 8885        // |        bottom         |
 8886        // +-----------------------+
 8887
 8888        let top_item = cx.new(|cx| {
 8889            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 8890        });
 8891        let bottom_item = cx.new(|cx| {
 8892            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 8893        });
 8894        let left_item = cx.new(|cx| {
 8895            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 8896        });
 8897        let right_item = cx.new(|cx| {
 8898            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 8899        });
 8900        let center_item = cx.new(|cx| {
 8901            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 8902        });
 8903
 8904        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8905            let top_pane_id = workspace.active_pane().entity_id();
 8906            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 8907            workspace.split_pane(
 8908                workspace.active_pane().clone(),
 8909                SplitDirection::Down,
 8910                window,
 8911                cx,
 8912            );
 8913            top_pane_id
 8914        });
 8915        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8916            let bottom_pane_id = workspace.active_pane().entity_id();
 8917            workspace.add_item_to_active_pane(
 8918                Box::new(bottom_item.clone()),
 8919                None,
 8920                false,
 8921                window,
 8922                cx,
 8923            );
 8924            workspace.split_pane(
 8925                workspace.active_pane().clone(),
 8926                SplitDirection::Up,
 8927                window,
 8928                cx,
 8929            );
 8930            bottom_pane_id
 8931        });
 8932        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8933            let left_pane_id = workspace.active_pane().entity_id();
 8934            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 8935            workspace.split_pane(
 8936                workspace.active_pane().clone(),
 8937                SplitDirection::Right,
 8938                window,
 8939                cx,
 8940            );
 8941            left_pane_id
 8942        });
 8943        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8944            let right_pane_id = workspace.active_pane().entity_id();
 8945            workspace.add_item_to_active_pane(
 8946                Box::new(right_item.clone()),
 8947                None,
 8948                false,
 8949                window,
 8950                cx,
 8951            );
 8952            workspace.split_pane(
 8953                workspace.active_pane().clone(),
 8954                SplitDirection::Left,
 8955                window,
 8956                cx,
 8957            );
 8958            right_pane_id
 8959        });
 8960        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8961            let center_pane_id = workspace.active_pane().entity_id();
 8962            workspace.add_item_to_active_pane(
 8963                Box::new(center_item.clone()),
 8964                None,
 8965                false,
 8966                window,
 8967                cx,
 8968            );
 8969            center_pane_id
 8970        });
 8971        cx.executor().run_until_parked();
 8972
 8973        workspace.update_in(cx, |workspace, window, cx| {
 8974            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 8975
 8976            // Join into next from center pane into right
 8977            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 8978        });
 8979
 8980        workspace.update_in(cx, |workspace, window, cx| {
 8981            let active_pane = workspace.active_pane();
 8982            assert_eq!(right_pane_id, active_pane.entity_id());
 8983            assert_eq!(2, active_pane.read(cx).items_len());
 8984            let item_ids_in_pane =
 8985                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 8986            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 8987            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 8988
 8989            // Join into next from right pane into bottom
 8990            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 8991        });
 8992
 8993        workspace.update_in(cx, |workspace, window, cx| {
 8994            let active_pane = workspace.active_pane();
 8995            assert_eq!(bottom_pane_id, active_pane.entity_id());
 8996            assert_eq!(3, active_pane.read(cx).items_len());
 8997            let item_ids_in_pane =
 8998                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 8999            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9000            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9001            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9002
 9003            // Join into next from bottom pane into left
 9004            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9005        });
 9006
 9007        workspace.update_in(cx, |workspace, window, cx| {
 9008            let active_pane = workspace.active_pane();
 9009            assert_eq!(left_pane_id, active_pane.entity_id());
 9010            assert_eq!(4, active_pane.read(cx).items_len());
 9011            let item_ids_in_pane =
 9012                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9013            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9014            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9015            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9016            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9017
 9018            // Join into next from left pane into top
 9019            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9020        });
 9021
 9022        workspace.update_in(cx, |workspace, window, cx| {
 9023            let active_pane = workspace.active_pane();
 9024            assert_eq!(top_pane_id, active_pane.entity_id());
 9025            assert_eq!(5, active_pane.read(cx).items_len());
 9026            let item_ids_in_pane =
 9027                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9028            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9029            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9030            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9031            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9032            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9033
 9034            // Single pane left: no-op
 9035            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9036        });
 9037
 9038        workspace.update(cx, |workspace, _cx| {
 9039            let active_pane = workspace.active_pane();
 9040            assert_eq!(top_pane_id, active_pane.entity_id());
 9041        });
 9042    }
 9043
 9044    fn add_an_item_to_active_pane(
 9045        cx: &mut VisualTestContext,
 9046        workspace: &Entity<Workspace>,
 9047        item_id: u64,
 9048    ) -> Entity<TestItem> {
 9049        let item = cx.new(|cx| {
 9050            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9051                item_id,
 9052                "item{item_id}.txt",
 9053                cx,
 9054            )])
 9055        });
 9056        workspace.update_in(cx, |workspace, window, cx| {
 9057            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9058        });
 9059        return item;
 9060    }
 9061
 9062    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9063        return workspace.update_in(cx, |workspace, window, cx| {
 9064            let new_pane = workspace.split_pane(
 9065                workspace.active_pane().clone(),
 9066                SplitDirection::Right,
 9067                window,
 9068                cx,
 9069            );
 9070            new_pane
 9071        });
 9072    }
 9073
 9074    #[gpui::test]
 9075    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9076        init_test(cx);
 9077        let fs = FakeFs::new(cx.executor());
 9078        let project = Project::test(fs, None, cx).await;
 9079        let (workspace, cx) =
 9080            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9081
 9082        add_an_item_to_active_pane(cx, &workspace, 1);
 9083        split_pane(cx, &workspace);
 9084        add_an_item_to_active_pane(cx, &workspace, 2);
 9085        split_pane(cx, &workspace); // empty pane
 9086        split_pane(cx, &workspace);
 9087        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9088
 9089        cx.executor().run_until_parked();
 9090
 9091        workspace.update(cx, |workspace, cx| {
 9092            let num_panes = workspace.panes().len();
 9093            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9094            let active_item = workspace
 9095                .active_pane()
 9096                .read(cx)
 9097                .active_item()
 9098                .expect("item is in focus");
 9099
 9100            assert_eq!(num_panes, 4);
 9101            assert_eq!(num_items_in_current_pane, 1);
 9102            assert_eq!(active_item.item_id(), last_item.item_id());
 9103        });
 9104
 9105        workspace.update_in(cx, |workspace, window, cx| {
 9106            workspace.join_all_panes(window, cx);
 9107        });
 9108
 9109        workspace.update(cx, |workspace, cx| {
 9110            let num_panes = workspace.panes().len();
 9111            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9112            let active_item = workspace
 9113                .active_pane()
 9114                .read(cx)
 9115                .active_item()
 9116                .expect("item is in focus");
 9117
 9118            assert_eq!(num_panes, 1);
 9119            assert_eq!(num_items_in_current_pane, 3);
 9120            assert_eq!(active_item.item_id(), last_item.item_id());
 9121        });
 9122    }
 9123    struct TestModal(FocusHandle);
 9124
 9125    impl TestModal {
 9126        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9127            Self(cx.focus_handle())
 9128        }
 9129    }
 9130
 9131    impl EventEmitter<DismissEvent> for TestModal {}
 9132
 9133    impl Focusable for TestModal {
 9134        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9135            self.0.clone()
 9136        }
 9137    }
 9138
 9139    impl ModalView for TestModal {}
 9140
 9141    impl Render for TestModal {
 9142        fn render(
 9143            &mut self,
 9144            _window: &mut Window,
 9145            _cx: &mut Context<TestModal>,
 9146        ) -> impl IntoElement {
 9147            div().track_focus(&self.0)
 9148        }
 9149    }
 9150
 9151    #[gpui::test]
 9152    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9153        init_test(cx);
 9154        let fs = FakeFs::new(cx.executor());
 9155
 9156        let project = Project::test(fs, [], cx).await;
 9157        let (workspace, cx) =
 9158            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9159
 9160        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9161            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9162            workspace.add_panel(panel_1.clone(), window, cx);
 9163            workspace.toggle_dock(DockPosition::Left, window, cx);
 9164            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9165            workspace.add_panel(panel_2.clone(), window, cx);
 9166            workspace.toggle_dock(DockPosition::Right, window, cx);
 9167
 9168            let left_dock = workspace.left_dock();
 9169            assert_eq!(
 9170                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9171                panel_1.panel_id()
 9172            );
 9173            assert_eq!(
 9174                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9175                panel_1.size(window, cx)
 9176            );
 9177
 9178            left_dock.update(cx, |left_dock, cx| {
 9179                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9180            });
 9181            assert_eq!(
 9182                workspace
 9183                    .right_dock()
 9184                    .read(cx)
 9185                    .visible_panel()
 9186                    .unwrap()
 9187                    .panel_id(),
 9188                panel_2.panel_id(),
 9189            );
 9190
 9191            (panel_1, panel_2)
 9192        });
 9193
 9194        // Move panel_1 to the right
 9195        panel_1.update_in(cx, |panel_1, window, cx| {
 9196            panel_1.set_position(DockPosition::Right, window, cx)
 9197        });
 9198
 9199        workspace.update_in(cx, |workspace, window, cx| {
 9200            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9201            // Since it was the only panel on the left, the left dock should now be closed.
 9202            assert!(!workspace.left_dock().read(cx).is_open());
 9203            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9204            let right_dock = workspace.right_dock();
 9205            assert_eq!(
 9206                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9207                panel_1.panel_id()
 9208            );
 9209            assert_eq!(
 9210                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9211                px(1337.)
 9212            );
 9213
 9214            // Now we move panel_2 to the left
 9215            panel_2.set_position(DockPosition::Left, window, cx);
 9216        });
 9217
 9218        workspace.update(cx, |workspace, cx| {
 9219            // Since panel_2 was not visible on the right, we don't open the left dock.
 9220            assert!(!workspace.left_dock().read(cx).is_open());
 9221            // And the right dock is unaffected in its displaying of panel_1
 9222            assert!(workspace.right_dock().read(cx).is_open());
 9223            assert_eq!(
 9224                workspace
 9225                    .right_dock()
 9226                    .read(cx)
 9227                    .visible_panel()
 9228                    .unwrap()
 9229                    .panel_id(),
 9230                panel_1.panel_id(),
 9231            );
 9232        });
 9233
 9234        // Move panel_1 back to the left
 9235        panel_1.update_in(cx, |panel_1, window, cx| {
 9236            panel_1.set_position(DockPosition::Left, window, cx)
 9237        });
 9238
 9239        workspace.update_in(cx, |workspace, window, cx| {
 9240            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9241            let left_dock = workspace.left_dock();
 9242            assert!(left_dock.read(cx).is_open());
 9243            assert_eq!(
 9244                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9245                panel_1.panel_id()
 9246            );
 9247            assert_eq!(
 9248                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9249                px(1337.)
 9250            );
 9251            // And the right dock should be closed as it no longer has any panels.
 9252            assert!(!workspace.right_dock().read(cx).is_open());
 9253
 9254            // Now we move panel_1 to the bottom
 9255            panel_1.set_position(DockPosition::Bottom, window, cx);
 9256        });
 9257
 9258        workspace.update_in(cx, |workspace, window, cx| {
 9259            // Since panel_1 was visible on the left, we close the left dock.
 9260            assert!(!workspace.left_dock().read(cx).is_open());
 9261            // The bottom dock is sized based on the panel's default size,
 9262            // since the panel orientation changed from vertical to horizontal.
 9263            let bottom_dock = workspace.bottom_dock();
 9264            assert_eq!(
 9265                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9266                panel_1.size(window, cx),
 9267            );
 9268            // Close bottom dock and move panel_1 back to the left.
 9269            bottom_dock.update(cx, |bottom_dock, cx| {
 9270                bottom_dock.set_open(false, window, cx)
 9271            });
 9272            panel_1.set_position(DockPosition::Left, window, cx);
 9273        });
 9274
 9275        // Emit activated event on panel 1
 9276        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9277
 9278        // Now the left dock is open and panel_1 is active and focused.
 9279        workspace.update_in(cx, |workspace, window, cx| {
 9280            let left_dock = workspace.left_dock();
 9281            assert!(left_dock.read(cx).is_open());
 9282            assert_eq!(
 9283                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9284                panel_1.panel_id(),
 9285            );
 9286            assert!(panel_1.focus_handle(cx).is_focused(window));
 9287        });
 9288
 9289        // Emit closed event on panel 2, which is not active
 9290        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9291
 9292        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9293        workspace.update(cx, |workspace, cx| {
 9294            let left_dock = workspace.left_dock();
 9295            assert!(left_dock.read(cx).is_open());
 9296            assert_eq!(
 9297                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9298                panel_1.panel_id(),
 9299            );
 9300        });
 9301
 9302        // Emitting a ZoomIn event shows the panel as zoomed.
 9303        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9304        workspace.read_with(cx, |workspace, _| {
 9305            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9306            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9307        });
 9308
 9309        // Move panel to another dock while it is zoomed
 9310        panel_1.update_in(cx, |panel, window, cx| {
 9311            panel.set_position(DockPosition::Right, window, cx)
 9312        });
 9313        workspace.read_with(cx, |workspace, _| {
 9314            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9315
 9316            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9317        });
 9318
 9319        // This is a helper for getting a:
 9320        // - valid focus on an element,
 9321        // - that isn't a part of the panes and panels system of the Workspace,
 9322        // - and doesn't trigger the 'on_focus_lost' API.
 9323        let focus_other_view = {
 9324            let workspace = workspace.clone();
 9325            move |cx: &mut VisualTestContext| {
 9326                workspace.update_in(cx, |workspace, window, cx| {
 9327                    if let Some(_) = workspace.active_modal::<TestModal>(cx) {
 9328                        workspace.toggle_modal(window, cx, TestModal::new);
 9329                        workspace.toggle_modal(window, cx, TestModal::new);
 9330                    } else {
 9331                        workspace.toggle_modal(window, cx, TestModal::new);
 9332                    }
 9333                })
 9334            }
 9335        };
 9336
 9337        // If focus is transferred to another view that's not a panel or another pane, we still show
 9338        // the panel as zoomed.
 9339        focus_other_view(cx);
 9340        workspace.read_with(cx, |workspace, _| {
 9341            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9342            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9343        });
 9344
 9345        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 9346        workspace.update_in(cx, |_workspace, window, cx| {
 9347            cx.focus_self(window);
 9348        });
 9349        workspace.read_with(cx, |workspace, _| {
 9350            assert_eq!(workspace.zoomed, None);
 9351            assert_eq!(workspace.zoomed_position, None);
 9352        });
 9353
 9354        // If focus is transferred again to another view that's not a panel or a pane, we won't
 9355        // show the panel as zoomed because it wasn't zoomed before.
 9356        focus_other_view(cx);
 9357        workspace.read_with(cx, |workspace, _| {
 9358            assert_eq!(workspace.zoomed, None);
 9359            assert_eq!(workspace.zoomed_position, None);
 9360        });
 9361
 9362        // When the panel is activated, it is zoomed again.
 9363        cx.dispatch_action(ToggleRightDock);
 9364        workspace.read_with(cx, |workspace, _| {
 9365            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9366            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9367        });
 9368
 9369        // Emitting a ZoomOut event unzooms the panel.
 9370        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
 9371        workspace.read_with(cx, |workspace, _| {
 9372            assert_eq!(workspace.zoomed, None);
 9373            assert_eq!(workspace.zoomed_position, None);
 9374        });
 9375
 9376        // Emit closed event on panel 1, which is active
 9377        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9378
 9379        // Now the left dock is closed, because panel_1 was the active panel
 9380        workspace.update(cx, |workspace, cx| {
 9381            let right_dock = workspace.right_dock();
 9382            assert!(!right_dock.read(cx).is_open());
 9383        });
 9384    }
 9385
 9386    #[gpui::test]
 9387    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
 9388        init_test(cx);
 9389
 9390        let fs = FakeFs::new(cx.background_executor.clone());
 9391        let project = Project::test(fs, [], cx).await;
 9392        let (workspace, cx) =
 9393            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9394        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9395
 9396        let dirty_regular_buffer = cx.new(|cx| {
 9397            TestItem::new(cx)
 9398                .with_dirty(true)
 9399                .with_label("1.txt")
 9400                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9401        });
 9402        let dirty_regular_buffer_2 = cx.new(|cx| {
 9403            TestItem::new(cx)
 9404                .with_dirty(true)
 9405                .with_label("2.txt")
 9406                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9407        });
 9408        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9409            TestItem::new(cx)
 9410                .with_dirty(true)
 9411                .with_singleton(false)
 9412                .with_label("Fake Project Search")
 9413                .with_project_items(&[
 9414                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9415                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9416                ])
 9417        });
 9418        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9419        workspace.update_in(cx, |workspace, window, cx| {
 9420            workspace.add_item(
 9421                pane.clone(),
 9422                Box::new(dirty_regular_buffer.clone()),
 9423                None,
 9424                false,
 9425                false,
 9426                window,
 9427                cx,
 9428            );
 9429            workspace.add_item(
 9430                pane.clone(),
 9431                Box::new(dirty_regular_buffer_2.clone()),
 9432                None,
 9433                false,
 9434                false,
 9435                window,
 9436                cx,
 9437            );
 9438            workspace.add_item(
 9439                pane.clone(),
 9440                Box::new(dirty_multi_buffer_with_both.clone()),
 9441                None,
 9442                false,
 9443                false,
 9444                window,
 9445                cx,
 9446            );
 9447        });
 9448
 9449        pane.update_in(cx, |pane, window, cx| {
 9450            pane.activate_item(2, true, true, window, cx);
 9451            assert_eq!(
 9452                pane.active_item().unwrap().item_id(),
 9453                multi_buffer_with_both_files_id,
 9454                "Should select the multi buffer in the pane"
 9455            );
 9456        });
 9457        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9458            pane.close_inactive_items(
 9459                &CloseInactiveItems {
 9460                    save_intent: Some(SaveIntent::Save),
 9461                    close_pinned: true,
 9462                },
 9463                window,
 9464                cx,
 9465            )
 9466        });
 9467        cx.background_executor.run_until_parked();
 9468        assert!(!cx.has_pending_prompt());
 9469        close_all_but_multi_buffer_task
 9470            .await
 9471            .expect("Closing all buffers but the multi buffer failed");
 9472        pane.update(cx, |pane, cx| {
 9473            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
 9474            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
 9475            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
 9476            assert_eq!(pane.items_len(), 1);
 9477            assert_eq!(
 9478                pane.active_item().unwrap().item_id(),
 9479                multi_buffer_with_both_files_id,
 9480                "Should have only the multi buffer left in the pane"
 9481            );
 9482            assert!(
 9483                dirty_multi_buffer_with_both.read(cx).is_dirty,
 9484                "The multi buffer containing the unsaved buffer should still be dirty"
 9485            );
 9486        });
 9487
 9488        dirty_regular_buffer.update(cx, |buffer, cx| {
 9489            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
 9490        });
 9491
 9492        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9493            pane.close_active_item(
 9494                &CloseActiveItem {
 9495                    save_intent: Some(SaveIntent::Close),
 9496                    close_pinned: false,
 9497                },
 9498                window,
 9499                cx,
 9500            )
 9501        });
 9502        cx.background_executor.run_until_parked();
 9503        assert!(
 9504            cx.has_pending_prompt(),
 9505            "Dirty multi buffer should prompt a save dialog"
 9506        );
 9507        cx.simulate_prompt_answer("Save");
 9508        cx.background_executor.run_until_parked();
 9509        close_multi_buffer_task
 9510            .await
 9511            .expect("Closing the multi buffer failed");
 9512        pane.update(cx, |pane, cx| {
 9513            assert_eq!(
 9514                dirty_multi_buffer_with_both.read(cx).save_count,
 9515                1,
 9516                "Multi buffer item should get be saved"
 9517            );
 9518            // Test impl does not save inner items, so we do not assert them
 9519            assert_eq!(
 9520                pane.items_len(),
 9521                0,
 9522                "No more items should be left in the pane"
 9523            );
 9524            assert!(pane.active_item().is_none());
 9525        });
 9526    }
 9527
 9528    #[gpui::test]
 9529    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
 9530        cx: &mut TestAppContext,
 9531    ) {
 9532        init_test(cx);
 9533
 9534        let fs = FakeFs::new(cx.background_executor.clone());
 9535        let project = Project::test(fs, [], cx).await;
 9536        let (workspace, cx) =
 9537            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9538        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9539
 9540        let dirty_regular_buffer = cx.new(|cx| {
 9541            TestItem::new(cx)
 9542                .with_dirty(true)
 9543                .with_label("1.txt")
 9544                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9545        });
 9546        let dirty_regular_buffer_2 = cx.new(|cx| {
 9547            TestItem::new(cx)
 9548                .with_dirty(true)
 9549                .with_label("2.txt")
 9550                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9551        });
 9552        let clear_regular_buffer = cx.new(|cx| {
 9553            TestItem::new(cx)
 9554                .with_label("3.txt")
 9555                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9556        });
 9557
 9558        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9559            TestItem::new(cx)
 9560                .with_dirty(true)
 9561                .with_singleton(false)
 9562                .with_label("Fake Project Search")
 9563                .with_project_items(&[
 9564                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9565                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9566                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9567                ])
 9568        });
 9569        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9570        workspace.update_in(cx, |workspace, window, cx| {
 9571            workspace.add_item(
 9572                pane.clone(),
 9573                Box::new(dirty_regular_buffer.clone()),
 9574                None,
 9575                false,
 9576                false,
 9577                window,
 9578                cx,
 9579            );
 9580            workspace.add_item(
 9581                pane.clone(),
 9582                Box::new(dirty_multi_buffer_with_both.clone()),
 9583                None,
 9584                false,
 9585                false,
 9586                window,
 9587                cx,
 9588            );
 9589        });
 9590
 9591        pane.update_in(cx, |pane, window, cx| {
 9592            pane.activate_item(1, true, true, window, cx);
 9593            assert_eq!(
 9594                pane.active_item().unwrap().item_id(),
 9595                multi_buffer_with_both_files_id,
 9596                "Should select the multi buffer in the pane"
 9597            );
 9598        });
 9599        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9600            pane.close_active_item(
 9601                &CloseActiveItem {
 9602                    save_intent: None,
 9603                    close_pinned: false,
 9604                },
 9605                window,
 9606                cx,
 9607            )
 9608        });
 9609        cx.background_executor.run_until_parked();
 9610        assert!(
 9611            cx.has_pending_prompt(),
 9612            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
 9613        );
 9614    }
 9615
 9616    /// Tests that when `close_on_file_delete` is enabled, files are automatically
 9617    /// closed when they are deleted from disk.
 9618    #[gpui::test]
 9619    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
 9620        init_test(cx);
 9621
 9622        // Enable the close_on_disk_deletion setting
 9623        cx.update_global(|store: &mut SettingsStore, cx| {
 9624            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9625                settings.close_on_file_delete = Some(true);
 9626            });
 9627        });
 9628
 9629        let fs = FakeFs::new(cx.background_executor.clone());
 9630        let project = Project::test(fs, [], cx).await;
 9631        let (workspace, cx) =
 9632            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9633        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9634
 9635        // Create a test item that simulates a file
 9636        let item = cx.new(|cx| {
 9637            TestItem::new(cx)
 9638                .with_label("test.txt")
 9639                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9640        });
 9641
 9642        // Add item to workspace
 9643        workspace.update_in(cx, |workspace, window, cx| {
 9644            workspace.add_item(
 9645                pane.clone(),
 9646                Box::new(item.clone()),
 9647                None,
 9648                false,
 9649                false,
 9650                window,
 9651                cx,
 9652            );
 9653        });
 9654
 9655        // Verify the item is in the pane
 9656        pane.read_with(cx, |pane, _| {
 9657            assert_eq!(pane.items().count(), 1);
 9658        });
 9659
 9660        // Simulate file deletion by setting the item's deleted state
 9661        item.update(cx, |item, _| {
 9662            item.set_has_deleted_file(true);
 9663        });
 9664
 9665        // Emit UpdateTab event to trigger the close behavior
 9666        cx.run_until_parked();
 9667        item.update(cx, |_, cx| {
 9668            cx.emit(ItemEvent::UpdateTab);
 9669        });
 9670
 9671        // Allow the close operation to complete
 9672        cx.run_until_parked();
 9673
 9674        // Verify the item was automatically closed
 9675        pane.read_with(cx, |pane, _| {
 9676            assert_eq!(
 9677                pane.items().count(),
 9678                0,
 9679                "Item should be automatically closed when file is deleted"
 9680            );
 9681        });
 9682    }
 9683
 9684    /// Tests that when `close_on_file_delete` is disabled (default), files remain
 9685    /// open with a strikethrough when they are deleted from disk.
 9686    #[gpui::test]
 9687    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
 9688        init_test(cx);
 9689
 9690        // Ensure close_on_disk_deletion is disabled (default)
 9691        cx.update_global(|store: &mut SettingsStore, cx| {
 9692            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9693                settings.close_on_file_delete = Some(false);
 9694            });
 9695        });
 9696
 9697        let fs = FakeFs::new(cx.background_executor.clone());
 9698        let project = Project::test(fs, [], cx).await;
 9699        let (workspace, cx) =
 9700            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9701        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9702
 9703        // Create a test item that simulates a file
 9704        let item = cx.new(|cx| {
 9705            TestItem::new(cx)
 9706                .with_label("test.txt")
 9707                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9708        });
 9709
 9710        // Add item to workspace
 9711        workspace.update_in(cx, |workspace, window, cx| {
 9712            workspace.add_item(
 9713                pane.clone(),
 9714                Box::new(item.clone()),
 9715                None,
 9716                false,
 9717                false,
 9718                window,
 9719                cx,
 9720            );
 9721        });
 9722
 9723        // Verify the item is in the pane
 9724        pane.read_with(cx, |pane, _| {
 9725            assert_eq!(pane.items().count(), 1);
 9726        });
 9727
 9728        // Simulate file deletion
 9729        item.update(cx, |item, _| {
 9730            item.set_has_deleted_file(true);
 9731        });
 9732
 9733        // Emit UpdateTab event
 9734        cx.run_until_parked();
 9735        item.update(cx, |_, cx| {
 9736            cx.emit(ItemEvent::UpdateTab);
 9737        });
 9738
 9739        // Allow any potential close operation to complete
 9740        cx.run_until_parked();
 9741
 9742        // Verify the item remains open (with strikethrough)
 9743        pane.read_with(cx, |pane, _| {
 9744            assert_eq!(
 9745                pane.items().count(),
 9746                1,
 9747                "Item should remain open when close_on_disk_deletion is disabled"
 9748            );
 9749        });
 9750
 9751        // Verify the item shows as deleted
 9752        item.read_with(cx, |item, _| {
 9753            assert!(
 9754                item.has_deleted_file,
 9755                "Item should be marked as having deleted file"
 9756            );
 9757        });
 9758    }
 9759
 9760    /// Tests that dirty files are not automatically closed when deleted from disk,
 9761    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
 9762    /// unsaved changes without being prompted.
 9763    #[gpui::test]
 9764    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
 9765        init_test(cx);
 9766
 9767        // Enable the close_on_file_delete setting
 9768        cx.update_global(|store: &mut SettingsStore, cx| {
 9769            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9770                settings.close_on_file_delete = Some(true);
 9771            });
 9772        });
 9773
 9774        let fs = FakeFs::new(cx.background_executor.clone());
 9775        let project = Project::test(fs, [], cx).await;
 9776        let (workspace, cx) =
 9777            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9778        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9779
 9780        // Create a dirty test item
 9781        let item = cx.new(|cx| {
 9782            TestItem::new(cx)
 9783                .with_dirty(true)
 9784                .with_label("test.txt")
 9785                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9786        });
 9787
 9788        // Add item to workspace
 9789        workspace.update_in(cx, |workspace, window, cx| {
 9790            workspace.add_item(
 9791                pane.clone(),
 9792                Box::new(item.clone()),
 9793                None,
 9794                false,
 9795                false,
 9796                window,
 9797                cx,
 9798            );
 9799        });
 9800
 9801        // Simulate file deletion
 9802        item.update(cx, |item, _| {
 9803            item.set_has_deleted_file(true);
 9804        });
 9805
 9806        // Emit UpdateTab event to trigger the close behavior
 9807        cx.run_until_parked();
 9808        item.update(cx, |_, cx| {
 9809            cx.emit(ItemEvent::UpdateTab);
 9810        });
 9811
 9812        // Allow any potential close operation to complete
 9813        cx.run_until_parked();
 9814
 9815        // Verify the item remains open (dirty files are not auto-closed)
 9816        pane.read_with(cx, |pane, _| {
 9817            assert_eq!(
 9818                pane.items().count(),
 9819                1,
 9820                "Dirty items should not be automatically closed even when file is deleted"
 9821            );
 9822        });
 9823
 9824        // Verify the item is marked as deleted and still dirty
 9825        item.read_with(cx, |item, _| {
 9826            assert!(
 9827                item.has_deleted_file,
 9828                "Item should be marked as having deleted file"
 9829            );
 9830            assert!(item.is_dirty, "Item should still be dirty");
 9831        });
 9832    }
 9833
 9834    /// Tests that navigation history is cleaned up when files are auto-closed
 9835    /// due to deletion from disk.
 9836    #[gpui::test]
 9837    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
 9838        init_test(cx);
 9839
 9840        // Enable the close_on_file_delete setting
 9841        cx.update_global(|store: &mut SettingsStore, cx| {
 9842            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9843                settings.close_on_file_delete = Some(true);
 9844            });
 9845        });
 9846
 9847        let fs = FakeFs::new(cx.background_executor.clone());
 9848        let project = Project::test(fs, [], cx).await;
 9849        let (workspace, cx) =
 9850            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9851        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9852
 9853        // Create test items
 9854        let item1 = cx.new(|cx| {
 9855            TestItem::new(cx)
 9856                .with_label("test1.txt")
 9857                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
 9858        });
 9859        let item1_id = item1.item_id();
 9860
 9861        let item2 = cx.new(|cx| {
 9862            TestItem::new(cx)
 9863                .with_label("test2.txt")
 9864                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
 9865        });
 9866
 9867        // Add items to workspace
 9868        workspace.update_in(cx, |workspace, window, cx| {
 9869            workspace.add_item(
 9870                pane.clone(),
 9871                Box::new(item1.clone()),
 9872                None,
 9873                false,
 9874                false,
 9875                window,
 9876                cx,
 9877            );
 9878            workspace.add_item(
 9879                pane.clone(),
 9880                Box::new(item2.clone()),
 9881                None,
 9882                false,
 9883                false,
 9884                window,
 9885                cx,
 9886            );
 9887        });
 9888
 9889        // Activate item1 to ensure it gets navigation entries
 9890        pane.update_in(cx, |pane, window, cx| {
 9891            pane.activate_item(0, true, true, window, cx);
 9892        });
 9893
 9894        // Switch to item2 and back to create navigation history
 9895        pane.update_in(cx, |pane, window, cx| {
 9896            pane.activate_item(1, true, true, window, cx);
 9897        });
 9898        cx.run_until_parked();
 9899
 9900        pane.update_in(cx, |pane, window, cx| {
 9901            pane.activate_item(0, true, true, window, cx);
 9902        });
 9903        cx.run_until_parked();
 9904
 9905        // Simulate file deletion for item1
 9906        item1.update(cx, |item, _| {
 9907            item.set_has_deleted_file(true);
 9908        });
 9909
 9910        // Emit UpdateTab event to trigger the close behavior
 9911        item1.update(cx, |_, cx| {
 9912            cx.emit(ItemEvent::UpdateTab);
 9913        });
 9914        cx.run_until_parked();
 9915
 9916        // Verify item1 was closed
 9917        pane.read_with(cx, |pane, _| {
 9918            assert_eq!(
 9919                pane.items().count(),
 9920                1,
 9921                "Should have 1 item remaining after auto-close"
 9922            );
 9923        });
 9924
 9925        // Check navigation history after close
 9926        let has_item = pane.read_with(cx, |pane, cx| {
 9927            let mut has_item = false;
 9928            pane.nav_history().for_each_entry(cx, |entry, _| {
 9929                if entry.item.id() == item1_id {
 9930                    has_item = true;
 9931                }
 9932            });
 9933            has_item
 9934        });
 9935
 9936        assert!(
 9937            !has_item,
 9938            "Navigation history should not contain closed item entries"
 9939        );
 9940    }
 9941
 9942    #[gpui::test]
 9943    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
 9944        cx: &mut TestAppContext,
 9945    ) {
 9946        init_test(cx);
 9947
 9948        let fs = FakeFs::new(cx.background_executor.clone());
 9949        let project = Project::test(fs, [], cx).await;
 9950        let (workspace, cx) =
 9951            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9952        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9953
 9954        let dirty_regular_buffer = cx.new(|cx| {
 9955            TestItem::new(cx)
 9956                .with_dirty(true)
 9957                .with_label("1.txt")
 9958                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9959        });
 9960        let dirty_regular_buffer_2 = cx.new(|cx| {
 9961            TestItem::new(cx)
 9962                .with_dirty(true)
 9963                .with_label("2.txt")
 9964                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9965        });
 9966        let clear_regular_buffer = cx.new(|cx| {
 9967            TestItem::new(cx)
 9968                .with_label("3.txt")
 9969                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9970        });
 9971
 9972        let dirty_multi_buffer = cx.new(|cx| {
 9973            TestItem::new(cx)
 9974                .with_dirty(true)
 9975                .with_singleton(false)
 9976                .with_label("Fake Project Search")
 9977                .with_project_items(&[
 9978                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9979                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9980                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9981                ])
 9982        });
 9983        workspace.update_in(cx, |workspace, window, cx| {
 9984            workspace.add_item(
 9985                pane.clone(),
 9986                Box::new(dirty_regular_buffer.clone()),
 9987                None,
 9988                false,
 9989                false,
 9990                window,
 9991                cx,
 9992            );
 9993            workspace.add_item(
 9994                pane.clone(),
 9995                Box::new(dirty_regular_buffer_2.clone()),
 9996                None,
 9997                false,
 9998                false,
 9999                window,
10000                cx,
10001            );
10002            workspace.add_item(
10003                pane.clone(),
10004                Box::new(dirty_multi_buffer.clone()),
10005                None,
10006                false,
10007                false,
10008                window,
10009                cx,
10010            );
10011        });
10012
10013        pane.update_in(cx, |pane, window, cx| {
10014            pane.activate_item(2, true, true, window, cx);
10015            assert_eq!(
10016                pane.active_item().unwrap().item_id(),
10017                dirty_multi_buffer.item_id(),
10018                "Should select the multi buffer in the pane"
10019            );
10020        });
10021        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10022            pane.close_active_item(
10023                &CloseActiveItem {
10024                    save_intent: None,
10025                    close_pinned: false,
10026                },
10027                window,
10028                cx,
10029            )
10030        });
10031        cx.background_executor.run_until_parked();
10032        assert!(
10033            !cx.has_pending_prompt(),
10034            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10035        );
10036        close_multi_buffer_task
10037            .await
10038            .expect("Closing multi buffer failed");
10039        pane.update(cx, |pane, cx| {
10040            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10041            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10042            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10043            assert_eq!(
10044                pane.items()
10045                    .map(|item| item.item_id())
10046                    .sorted()
10047                    .collect::<Vec<_>>(),
10048                vec![
10049                    dirty_regular_buffer.item_id(),
10050                    dirty_regular_buffer_2.item_id(),
10051                ],
10052                "Should have no multi buffer left in the pane"
10053            );
10054            assert!(dirty_regular_buffer.read(cx).is_dirty);
10055            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10056        });
10057    }
10058
10059    #[gpui::test]
10060    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10061        init_test(cx);
10062        let fs = FakeFs::new(cx.executor());
10063        let project = Project::test(fs, [], cx).await;
10064        let (workspace, cx) =
10065            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10066
10067        // Add a new panel to the right dock, opening the dock and setting the
10068        // focus to the new panel.
10069        let panel = workspace.update_in(cx, |workspace, window, cx| {
10070            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10071            workspace.add_panel(panel.clone(), window, cx);
10072
10073            workspace
10074                .right_dock()
10075                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10076
10077            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10078
10079            panel
10080        });
10081
10082        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10083        // panel to the next valid position which, in this case, is the left
10084        // dock.
10085        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10086        workspace.update(cx, |workspace, cx| {
10087            assert!(workspace.left_dock().read(cx).is_open());
10088            assert_eq!(panel.read(cx).position, DockPosition::Left);
10089        });
10090
10091        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10092        // panel to the next valid position which, in this case, is the bottom
10093        // dock.
10094        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10095        workspace.update(cx, |workspace, cx| {
10096            assert!(workspace.bottom_dock().read(cx).is_open());
10097            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10098        });
10099
10100        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10101        // around moving the panel to its initial position, the right dock.
10102        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10103        workspace.update(cx, |workspace, cx| {
10104            assert!(workspace.right_dock().read(cx).is_open());
10105            assert_eq!(panel.read(cx).position, DockPosition::Right);
10106        });
10107
10108        // Remove focus from the panel, ensuring that, if the panel is not
10109        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10110        // the panel's position, so the panel is still in the right dock.
10111        workspace.update_in(cx, |workspace, window, cx| {
10112            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10113        });
10114
10115        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10116        workspace.update(cx, |workspace, cx| {
10117            assert!(workspace.right_dock().read(cx).is_open());
10118            assert_eq!(panel.read(cx).position, DockPosition::Right);
10119        });
10120    }
10121
10122    #[gpui::test]
10123    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10124        init_test(cx);
10125
10126        let fs = FakeFs::new(cx.executor());
10127        let project = Project::test(fs, [], cx).await;
10128        let (workspace, cx) =
10129            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10130
10131        let item_1 = cx.new(|cx| {
10132            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10133        });
10134        workspace.update_in(cx, |workspace, window, cx| {
10135            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10136            workspace.move_item_to_pane_in_direction(
10137                &MoveItemToPaneInDirection {
10138                    direction: SplitDirection::Right,
10139                    focus: true,
10140                    clone: false,
10141                },
10142                window,
10143                cx,
10144            );
10145            workspace.move_item_to_pane_at_index(
10146                &MoveItemToPane {
10147                    destination: 3,
10148                    focus: true,
10149                    clone: false,
10150                },
10151                window,
10152                cx,
10153            );
10154
10155            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10156            assert_eq!(
10157                pane_items_paths(&workspace.active_pane, cx),
10158                vec!["first.txt".to_string()],
10159                "Single item was not moved anywhere"
10160            );
10161        });
10162
10163        let item_2 = cx.new(|cx| {
10164            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10165        });
10166        workspace.update_in(cx, |workspace, window, cx| {
10167            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10168            assert_eq!(
10169                pane_items_paths(&workspace.panes[0], cx),
10170                vec!["first.txt".to_string(), "second.txt".to_string()],
10171            );
10172            workspace.move_item_to_pane_in_direction(
10173                &MoveItemToPaneInDirection {
10174                    direction: SplitDirection::Right,
10175                    focus: true,
10176                    clone: false,
10177                },
10178                window,
10179                cx,
10180            );
10181
10182            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10183            assert_eq!(
10184                pane_items_paths(&workspace.panes[0], cx),
10185                vec!["first.txt".to_string()],
10186                "After moving, one item should be left in the original pane"
10187            );
10188            assert_eq!(
10189                pane_items_paths(&workspace.panes[1], cx),
10190                vec!["second.txt".to_string()],
10191                "New item should have been moved to the new pane"
10192            );
10193        });
10194
10195        let item_3 = cx.new(|cx| {
10196            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10197        });
10198        workspace.update_in(cx, |workspace, window, cx| {
10199            let original_pane = workspace.panes[0].clone();
10200            workspace.set_active_pane(&original_pane, window, cx);
10201            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10202            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10203            assert_eq!(
10204                pane_items_paths(&workspace.active_pane, cx),
10205                vec!["first.txt".to_string(), "third.txt".to_string()],
10206                "New pane should be ready to move one item out"
10207            );
10208
10209            workspace.move_item_to_pane_at_index(
10210                &MoveItemToPane {
10211                    destination: 3,
10212                    focus: true,
10213                    clone: false,
10214                },
10215                window,
10216                cx,
10217            );
10218            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10219            assert_eq!(
10220                pane_items_paths(&workspace.active_pane, cx),
10221                vec!["first.txt".to_string()],
10222                "After moving, one item should be left in the original pane"
10223            );
10224            assert_eq!(
10225                pane_items_paths(&workspace.panes[1], cx),
10226                vec!["second.txt".to_string()],
10227                "Previously created pane should be unchanged"
10228            );
10229            assert_eq!(
10230                pane_items_paths(&workspace.panes[2], cx),
10231                vec!["third.txt".to_string()],
10232                "New item should have been moved to the new pane"
10233            );
10234        });
10235    }
10236
10237    #[gpui::test]
10238    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10239        init_test(cx);
10240
10241        let fs = FakeFs::new(cx.executor());
10242        let project = Project::test(fs, [], cx).await;
10243        let (workspace, cx) =
10244            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10245
10246        let item_1 = cx.new(|cx| {
10247            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10248        });
10249        workspace.update_in(cx, |workspace, window, cx| {
10250            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10251            workspace.move_item_to_pane_in_direction(
10252                &MoveItemToPaneInDirection {
10253                    direction: SplitDirection::Right,
10254                    focus: true,
10255                    clone: true,
10256                },
10257                window,
10258                cx,
10259            );
10260            workspace.move_item_to_pane_at_index(
10261                &MoveItemToPane {
10262                    destination: 3,
10263                    focus: true,
10264                    clone: true,
10265                },
10266                window,
10267                cx,
10268            );
10269
10270            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10271            for pane in workspace.panes() {
10272                assert_eq!(
10273                    pane_items_paths(pane, cx),
10274                    vec!["first.txt".to_string()],
10275                    "Single item exists in all panes"
10276                );
10277            }
10278        });
10279
10280        // verify that the active pane has been updated after waiting for the
10281        // pane focus event to fire and resolve
10282        workspace.read_with(cx, |workspace, _app| {
10283            assert_eq!(
10284                workspace.active_pane(),
10285                &workspace.panes[2],
10286                "The third pane should be the active one: {:?}",
10287                workspace.panes
10288            );
10289        })
10290    }
10291
10292    mod register_project_item_tests {
10293
10294        use super::*;
10295
10296        // View
10297        struct TestPngItemView {
10298            focus_handle: FocusHandle,
10299        }
10300        // Model
10301        struct TestPngItem {}
10302
10303        impl project::ProjectItem for TestPngItem {
10304            fn try_open(
10305                _project: &Entity<Project>,
10306                path: &ProjectPath,
10307                cx: &mut App,
10308            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10309                if path.path.extension().unwrap() == "png" {
10310                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10311                } else {
10312                    None
10313                }
10314            }
10315
10316            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10317                None
10318            }
10319
10320            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10321                None
10322            }
10323
10324            fn is_dirty(&self) -> bool {
10325                false
10326            }
10327        }
10328
10329        impl Item for TestPngItemView {
10330            type Event = ();
10331            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10332                "".into()
10333            }
10334        }
10335        impl EventEmitter<()> for TestPngItemView {}
10336        impl Focusable for TestPngItemView {
10337            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10338                self.focus_handle.clone()
10339            }
10340        }
10341
10342        impl Render for TestPngItemView {
10343            fn render(
10344                &mut self,
10345                _window: &mut Window,
10346                _cx: &mut Context<Self>,
10347            ) -> impl IntoElement {
10348                Empty
10349            }
10350        }
10351
10352        impl ProjectItem for TestPngItemView {
10353            type Item = TestPngItem;
10354
10355            fn for_project_item(
10356                _project: Entity<Project>,
10357                _pane: Option<&Pane>,
10358                _item: Entity<Self::Item>,
10359                _: &mut Window,
10360                cx: &mut Context<Self>,
10361            ) -> Self
10362            where
10363                Self: Sized,
10364            {
10365                Self {
10366                    focus_handle: cx.focus_handle(),
10367                }
10368            }
10369        }
10370
10371        // View
10372        struct TestIpynbItemView {
10373            focus_handle: FocusHandle,
10374        }
10375        // Model
10376        struct TestIpynbItem {}
10377
10378        impl project::ProjectItem for TestIpynbItem {
10379            fn try_open(
10380                _project: &Entity<Project>,
10381                path: &ProjectPath,
10382                cx: &mut App,
10383            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10384                if path.path.extension().unwrap() == "ipynb" {
10385                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
10386                } else {
10387                    None
10388                }
10389            }
10390
10391            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10392                None
10393            }
10394
10395            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10396                None
10397            }
10398
10399            fn is_dirty(&self) -> bool {
10400                false
10401            }
10402        }
10403
10404        impl Item for TestIpynbItemView {
10405            type Event = ();
10406            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10407                "".into()
10408            }
10409        }
10410        impl EventEmitter<()> for TestIpynbItemView {}
10411        impl Focusable for TestIpynbItemView {
10412            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10413                self.focus_handle.clone()
10414            }
10415        }
10416
10417        impl Render for TestIpynbItemView {
10418            fn render(
10419                &mut self,
10420                _window: &mut Window,
10421                _cx: &mut Context<Self>,
10422            ) -> impl IntoElement {
10423                Empty
10424            }
10425        }
10426
10427        impl ProjectItem for TestIpynbItemView {
10428            type Item = TestIpynbItem;
10429
10430            fn for_project_item(
10431                _project: Entity<Project>,
10432                _pane: Option<&Pane>,
10433                _item: Entity<Self::Item>,
10434                _: &mut Window,
10435                cx: &mut Context<Self>,
10436            ) -> Self
10437            where
10438                Self: Sized,
10439            {
10440                Self {
10441                    focus_handle: cx.focus_handle(),
10442                }
10443            }
10444        }
10445
10446        struct TestAlternatePngItemView {
10447            focus_handle: FocusHandle,
10448        }
10449
10450        impl Item for TestAlternatePngItemView {
10451            type Event = ();
10452            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10453                "".into()
10454            }
10455        }
10456
10457        impl EventEmitter<()> for TestAlternatePngItemView {}
10458        impl Focusable for TestAlternatePngItemView {
10459            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10460                self.focus_handle.clone()
10461            }
10462        }
10463
10464        impl Render for TestAlternatePngItemView {
10465            fn render(
10466                &mut self,
10467                _window: &mut Window,
10468                _cx: &mut Context<Self>,
10469            ) -> impl IntoElement {
10470                Empty
10471            }
10472        }
10473
10474        impl ProjectItem for TestAlternatePngItemView {
10475            type Item = TestPngItem;
10476
10477            fn for_project_item(
10478                _project: Entity<Project>,
10479                _pane: Option<&Pane>,
10480                _item: Entity<Self::Item>,
10481                _: &mut Window,
10482                cx: &mut Context<Self>,
10483            ) -> Self
10484            where
10485                Self: Sized,
10486            {
10487                Self {
10488                    focus_handle: cx.focus_handle(),
10489                }
10490            }
10491        }
10492
10493        #[gpui::test]
10494        async fn test_register_project_item(cx: &mut TestAppContext) {
10495            init_test(cx);
10496
10497            cx.update(|cx| {
10498                register_project_item::<TestPngItemView>(cx);
10499                register_project_item::<TestIpynbItemView>(cx);
10500            });
10501
10502            let fs = FakeFs::new(cx.executor());
10503            fs.insert_tree(
10504                "/root1",
10505                json!({
10506                    "one.png": "BINARYDATAHERE",
10507                    "two.ipynb": "{ totally a notebook }",
10508                    "three.txt": "editing text, sure why not?"
10509                }),
10510            )
10511            .await;
10512
10513            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10514            let (workspace, cx) =
10515                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10516
10517            let worktree_id = project.update(cx, |project, cx| {
10518                project.worktrees(cx).next().unwrap().read(cx).id()
10519            });
10520
10521            let handle = workspace
10522                .update_in(cx, |workspace, window, cx| {
10523                    let project_path = (worktree_id, "one.png");
10524                    workspace.open_path(project_path, None, true, window, cx)
10525                })
10526                .await
10527                .unwrap();
10528
10529            // Now we can check if the handle we got back errored or not
10530            assert_eq!(
10531                handle.to_any().entity_type(),
10532                TypeId::of::<TestPngItemView>()
10533            );
10534
10535            let handle = workspace
10536                .update_in(cx, |workspace, window, cx| {
10537                    let project_path = (worktree_id, "two.ipynb");
10538                    workspace.open_path(project_path, None, true, window, cx)
10539                })
10540                .await
10541                .unwrap();
10542
10543            assert_eq!(
10544                handle.to_any().entity_type(),
10545                TypeId::of::<TestIpynbItemView>()
10546            );
10547
10548            let handle = workspace
10549                .update_in(cx, |workspace, window, cx| {
10550                    let project_path = (worktree_id, "three.txt");
10551                    workspace.open_path(project_path, None, true, window, cx)
10552                })
10553                .await;
10554            assert!(handle.is_err());
10555        }
10556
10557        #[gpui::test]
10558        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
10559            init_test(cx);
10560
10561            cx.update(|cx| {
10562                register_project_item::<TestPngItemView>(cx);
10563                register_project_item::<TestAlternatePngItemView>(cx);
10564            });
10565
10566            let fs = FakeFs::new(cx.executor());
10567            fs.insert_tree(
10568                "/root1",
10569                json!({
10570                    "one.png": "BINARYDATAHERE",
10571                    "two.ipynb": "{ totally a notebook }",
10572                    "three.txt": "editing text, sure why not?"
10573                }),
10574            )
10575            .await;
10576            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10577            let (workspace, cx) =
10578                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10579            let worktree_id = project.update(cx, |project, cx| {
10580                project.worktrees(cx).next().unwrap().read(cx).id()
10581            });
10582
10583            let handle = workspace
10584                .update_in(cx, |workspace, window, cx| {
10585                    let project_path = (worktree_id, "one.png");
10586                    workspace.open_path(project_path, None, true, window, cx)
10587                })
10588                .await
10589                .unwrap();
10590
10591            // This _must_ be the second item registered
10592            assert_eq!(
10593                handle.to_any().entity_type(),
10594                TypeId::of::<TestAlternatePngItemView>()
10595            );
10596
10597            let handle = workspace
10598                .update_in(cx, |workspace, window, cx| {
10599                    let project_path = (worktree_id, "three.txt");
10600                    workspace.open_path(project_path, None, true, window, cx)
10601                })
10602                .await;
10603            assert!(handle.is_err());
10604        }
10605    }
10606
10607    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
10608        pane.read(cx)
10609            .items()
10610            .flat_map(|item| {
10611                item.project_paths(cx)
10612                    .into_iter()
10613                    .map(|path| path.path.to_string_lossy().to_string())
10614            })
10615            .collect()
10616    }
10617
10618    pub fn init_test(cx: &mut TestAppContext) {
10619        cx.update(|cx| {
10620            let settings_store = SettingsStore::test(cx);
10621            cx.set_global(settings_store);
10622            theme::init(theme::LoadThemes::JustBase, cx);
10623            language::init(cx);
10624            crate::init_settings(cx);
10625            Project::init_settings(cx);
10626        });
10627    }
10628
10629    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
10630        let item = TestProjectItem::new(id, path, cx);
10631        item.update(cx, |item, _| {
10632            item.is_dirty = true;
10633        });
10634        item
10635    }
10636}