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
 1019enum WorkspaceLocation {
 1020    // Valid local paths or SSH project to serialize
 1021    Location(SerializedWorkspaceLocation),
 1022    // No valid location found hence clear session id
 1023    DetachFromSession,
 1024    // No valid location found to serialize
 1025    None,
 1026}
 1027
 1028type PromptForNewPath = Box<
 1029    dyn Fn(
 1030        &mut Workspace,
 1031        DirectoryLister,
 1032        &mut Window,
 1033        &mut Context<Workspace>,
 1034    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1035>;
 1036
 1037type PromptForOpenPath = Box<
 1038    dyn Fn(
 1039        &mut Workspace,
 1040        DirectoryLister,
 1041        &mut Window,
 1042        &mut Context<Workspace>,
 1043    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1044>;
 1045
 1046/// Collects everything project-related for a certain window opened.
 1047/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1048///
 1049/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1050/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1051/// that can be used to register a global action to be triggered from any place in the window.
 1052pub struct Workspace {
 1053    weak_self: WeakEntity<Self>,
 1054    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1055    zoomed: Option<AnyWeakView>,
 1056    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1057    zoomed_position: Option<DockPosition>,
 1058    center: PaneGroup,
 1059    left_dock: Entity<Dock>,
 1060    bottom_dock: Entity<Dock>,
 1061    bottom_dock_layout: BottomDockLayout,
 1062    right_dock: Entity<Dock>,
 1063    panes: Vec<Entity<Pane>>,
 1064    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1065    active_pane: Entity<Pane>,
 1066    last_active_center_pane: Option<WeakEntity<Pane>>,
 1067    last_active_view_id: Option<proto::ViewId>,
 1068    status_bar: Entity<StatusBar>,
 1069    modal_layer: Entity<ModalLayer>,
 1070    toast_layer: Entity<ToastLayer>,
 1071    titlebar_item: Option<AnyView>,
 1072    notifications: Notifications,
 1073    suppressed_notifications: HashSet<NotificationId>,
 1074    project: Entity<Project>,
 1075    follower_states: HashMap<CollaboratorId, FollowerState>,
 1076    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1077    window_edited: bool,
 1078    dirty_items: HashMap<EntityId, Subscription>,
 1079    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1080    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1081    database_id: Option<WorkspaceId>,
 1082    app_state: Arc<AppState>,
 1083    dispatching_keystrokes: Rc<RefCell<(HashSet<String>, Vec<Keystroke>)>>,
 1084    _subscriptions: Vec<Subscription>,
 1085    _apply_leader_updates: Task<Result<()>>,
 1086    _observe_current_user: Task<Result<()>>,
 1087    _schedule_serialize: Option<Task<()>>,
 1088    pane_history_timestamp: Arc<AtomicUsize>,
 1089    bounds: Bounds<Pixels>,
 1090    pub centered_layout: bool,
 1091    bounds_save_task_queued: Option<Task<()>>,
 1092    on_prompt_for_new_path: Option<PromptForNewPath>,
 1093    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1094    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1095    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1096    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1097    serialized_ssh_project: Option<SerializedSshProject>,
 1098    _items_serializer: Task<Result<()>>,
 1099    session_id: Option<String>,
 1100}
 1101
 1102impl EventEmitter<Event> for Workspace {}
 1103
 1104#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1105pub struct ViewId {
 1106    pub creator: CollaboratorId,
 1107    pub id: u64,
 1108}
 1109
 1110pub struct FollowerState {
 1111    center_pane: Entity<Pane>,
 1112    dock_pane: Option<Entity<Pane>>,
 1113    active_view_id: Option<ViewId>,
 1114    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1115}
 1116
 1117struct FollowerView {
 1118    view: Box<dyn FollowableItemHandle>,
 1119    location: Option<proto::PanelId>,
 1120}
 1121
 1122impl Workspace {
 1123    const DEFAULT_PADDING: f32 = 0.2;
 1124    const MAX_PADDING: f32 = 0.4;
 1125
 1126    pub fn new(
 1127        workspace_id: Option<WorkspaceId>,
 1128        project: Entity<Project>,
 1129        app_state: Arc<AppState>,
 1130        window: &mut Window,
 1131        cx: &mut Context<Self>,
 1132    ) -> Self {
 1133        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1134            match event {
 1135                project::Event::RemoteIdChanged(_) => {
 1136                    this.update_window_title(window, cx);
 1137                }
 1138
 1139                project::Event::CollaboratorLeft(peer_id) => {
 1140                    this.collaborator_left(*peer_id, window, cx);
 1141                }
 1142
 1143                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1144                    this.update_window_title(window, cx);
 1145                    this.serialize_workspace(window, cx);
 1146                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 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_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1723        let mut recent_item: Option<Entity<T>> = None;
 1724        let mut recent_timestamp = 0;
 1725        for pane_handle in &self.panes {
 1726            let pane = pane_handle.read(cx);
 1727            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1728                pane.items().map(|item| (item.item_id(), item)).collect();
 1729            for entry in pane.activation_history() {
 1730                if entry.timestamp > recent_timestamp {
 1731                    if let Some(&item) = item_map.get(&entry.entity_id) {
 1732                        if let Some(typed_item) = item.act_as::<T>(cx) {
 1733                            recent_timestamp = entry.timestamp;
 1734                            recent_item = Some(typed_item);
 1735                        }
 1736                    }
 1737                }
 1738            }
 1739        }
 1740        recent_item
 1741    }
 1742
 1743    pub fn recent_navigation_history_iter(
 1744        &self,
 1745        cx: &App,
 1746    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1747        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1748        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1749
 1750        for pane in &self.panes {
 1751            let pane = pane.read(cx);
 1752
 1753            pane.nav_history()
 1754                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1755                    if let Some(fs_path) = &fs_path {
 1756                        abs_paths_opened
 1757                            .entry(fs_path.clone())
 1758                            .or_default()
 1759                            .insert(project_path.clone());
 1760                    }
 1761                    let timestamp = entry.timestamp;
 1762                    match history.entry(project_path) {
 1763                        hash_map::Entry::Occupied(mut entry) => {
 1764                            let (_, old_timestamp) = entry.get();
 1765                            if &timestamp > old_timestamp {
 1766                                entry.insert((fs_path, timestamp));
 1767                            }
 1768                        }
 1769                        hash_map::Entry::Vacant(entry) => {
 1770                            entry.insert((fs_path, timestamp));
 1771                        }
 1772                    }
 1773                });
 1774
 1775            if let Some(item) = pane.active_item() {
 1776                if let Some(project_path) = item.project_path(cx) {
 1777                    let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1778
 1779                    if let Some(fs_path) = &fs_path {
 1780                        abs_paths_opened
 1781                            .entry(fs_path.clone())
 1782                            .or_default()
 1783                            .insert(project_path.clone());
 1784                    }
 1785
 1786                    history.insert(project_path, (fs_path, std::usize::MAX));
 1787                }
 1788            }
 1789        }
 1790
 1791        history
 1792            .into_iter()
 1793            .sorted_by_key(|(_, (_, order))| *order)
 1794            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1795            .rev()
 1796            .filter(move |(history_path, abs_path)| {
 1797                let latest_project_path_opened = abs_path
 1798                    .as_ref()
 1799                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1800                    .and_then(|project_paths| {
 1801                        project_paths
 1802                            .iter()
 1803                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1804                    });
 1805
 1806                match latest_project_path_opened {
 1807                    Some(latest_project_path_opened) => latest_project_path_opened == history_path,
 1808                    None => true,
 1809                }
 1810            })
 1811    }
 1812
 1813    pub fn recent_navigation_history(
 1814        &self,
 1815        limit: Option<usize>,
 1816        cx: &App,
 1817    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1818        self.recent_navigation_history_iter(cx)
 1819            .take(limit.unwrap_or(usize::MAX))
 1820            .collect()
 1821    }
 1822
 1823    fn navigate_history(
 1824        &mut self,
 1825        pane: WeakEntity<Pane>,
 1826        mode: NavigationMode,
 1827        window: &mut Window,
 1828        cx: &mut Context<Workspace>,
 1829    ) -> Task<Result<()>> {
 1830        let to_load = if let Some(pane) = pane.upgrade() {
 1831            pane.update(cx, |pane, cx| {
 1832                window.focus(&pane.focus_handle(cx));
 1833                loop {
 1834                    // Retrieve the weak item handle from the history.
 1835                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1836
 1837                    // If the item is still present in this pane, then activate it.
 1838                    if let Some(index) = entry
 1839                        .item
 1840                        .upgrade()
 1841                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1842                    {
 1843                        let prev_active_item_index = pane.active_item_index();
 1844                        pane.nav_history_mut().set_mode(mode);
 1845                        pane.activate_item(index, true, true, window, cx);
 1846                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1847
 1848                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1849                        if let Some(data) = entry.data {
 1850                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1851                        }
 1852
 1853                        if navigated {
 1854                            break None;
 1855                        }
 1856                    } else {
 1857                        // If the item is no longer present in this pane, then retrieve its
 1858                        // path info in order to reopen it.
 1859                        break pane
 1860                            .nav_history()
 1861                            .path_for_item(entry.item.id())
 1862                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1863                    }
 1864                }
 1865            })
 1866        } else {
 1867            None
 1868        };
 1869
 1870        if let Some((project_path, abs_path, entry)) = to_load {
 1871            // If the item was no longer present, then load it again from its previous path, first try the local path
 1872            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1873
 1874            cx.spawn_in(window, async move  |workspace, cx| {
 1875                let open_by_project_path = open_by_project_path.await;
 1876                let mut navigated = false;
 1877                match open_by_project_path
 1878                    .with_context(|| format!("Navigating to {project_path:?}"))
 1879                {
 1880                    Ok((project_entry_id, build_item)) => {
 1881                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1882                            pane.nav_history_mut().set_mode(mode);
 1883                            pane.active_item().map(|p| p.item_id())
 1884                        })?;
 1885
 1886                        pane.update_in(cx, |pane, window, cx| {
 1887                            let item = pane.open_item(
 1888                                project_entry_id,
 1889                                project_path,
 1890                                true,
 1891                                entry.is_preview,
 1892                                true,
 1893                                None,
 1894                                window, cx,
 1895                                build_item,
 1896                            );
 1897                            navigated |= Some(item.item_id()) != prev_active_item_id;
 1898                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1899                            if let Some(data) = entry.data {
 1900                                navigated |= item.navigate(data, window, cx);
 1901                            }
 1902                        })?;
 1903                    }
 1904                    Err(open_by_project_path_e) => {
 1905                        // Fall back to opening by abs path, in case an external file was opened and closed,
 1906                        // and its worktree is now dropped
 1907                        if let Some(abs_path) = abs_path {
 1908                            let prev_active_item_id = pane.update(cx, |pane, _| {
 1909                                pane.nav_history_mut().set_mode(mode);
 1910                                pane.active_item().map(|p| p.item_id())
 1911                            })?;
 1912                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 1913                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 1914                            })?;
 1915                            match open_by_abs_path
 1916                                .await
 1917                                .with_context(|| format!("Navigating to {abs_path:?}"))
 1918                            {
 1919                                Ok(item) => {
 1920                                    pane.update_in(cx, |pane, window, cx| {
 1921                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 1922                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1923                                        if let Some(data) = entry.data {
 1924                                            navigated |= item.navigate(data, window, cx);
 1925                                        }
 1926                                    })?;
 1927                                }
 1928                                Err(open_by_abs_path_e) => {
 1929                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 1930                                }
 1931                            }
 1932                        }
 1933                    }
 1934                }
 1935
 1936                if !navigated {
 1937                    workspace
 1938                        .update_in(cx, |workspace, window, cx| {
 1939                            Self::navigate_history(workspace, pane, mode, window, cx)
 1940                        })?
 1941                        .await?;
 1942                }
 1943
 1944                Ok(())
 1945            })
 1946        } else {
 1947            Task::ready(Ok(()))
 1948        }
 1949    }
 1950
 1951    pub fn go_back(
 1952        &mut self,
 1953        pane: WeakEntity<Pane>,
 1954        window: &mut Window,
 1955        cx: &mut Context<Workspace>,
 1956    ) -> Task<Result<()>> {
 1957        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 1958    }
 1959
 1960    pub fn go_forward(
 1961        &mut self,
 1962        pane: WeakEntity<Pane>,
 1963        window: &mut Window,
 1964        cx: &mut Context<Workspace>,
 1965    ) -> Task<Result<()>> {
 1966        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 1967    }
 1968
 1969    pub fn reopen_closed_item(
 1970        &mut self,
 1971        window: &mut Window,
 1972        cx: &mut Context<Workspace>,
 1973    ) -> Task<Result<()>> {
 1974        self.navigate_history(
 1975            self.active_pane().downgrade(),
 1976            NavigationMode::ReopeningClosedItem,
 1977            window,
 1978            cx,
 1979        )
 1980    }
 1981
 1982    pub fn client(&self) -> &Arc<Client> {
 1983        &self.app_state.client
 1984    }
 1985
 1986    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 1987        self.titlebar_item = Some(item);
 1988        cx.notify();
 1989    }
 1990
 1991    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 1992        self.on_prompt_for_new_path = Some(prompt)
 1993    }
 1994
 1995    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 1996        self.on_prompt_for_open_path = Some(prompt)
 1997    }
 1998
 1999    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2000        self.terminal_provider = Some(Box::new(provider));
 2001    }
 2002
 2003    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2004        self.debugger_provider = Some(Arc::new(provider));
 2005    }
 2006
 2007    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2008        self.debugger_provider.clone()
 2009    }
 2010
 2011    pub fn serialized_ssh_project(&self) -> Option<SerializedSshProject> {
 2012        self.serialized_ssh_project.clone()
 2013    }
 2014
 2015    pub fn set_serialized_ssh_project(&mut self, serialized_ssh_project: SerializedSshProject) {
 2016        self.serialized_ssh_project = Some(serialized_ssh_project);
 2017    }
 2018
 2019    pub fn prompt_for_open_path(
 2020        &mut self,
 2021        path_prompt_options: PathPromptOptions,
 2022        lister: DirectoryLister,
 2023        window: &mut Window,
 2024        cx: &mut Context<Self>,
 2025    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2026        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2027            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2028            let rx = prompt(self, lister, window, cx);
 2029            self.on_prompt_for_open_path = Some(prompt);
 2030            rx
 2031        } else {
 2032            let (tx, rx) = oneshot::channel();
 2033            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2034
 2035            cx.spawn_in(window, async move |workspace, cx| {
 2036                let Ok(result) = abs_path.await else {
 2037                    return Ok(());
 2038                };
 2039
 2040                match result {
 2041                    Ok(result) => {
 2042                        tx.send(result).ok();
 2043                    }
 2044                    Err(err) => {
 2045                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2046                            workspace.show_portal_error(err.to_string(), cx);
 2047                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2048                            let rx = prompt(workspace, lister, window, cx);
 2049                            workspace.on_prompt_for_open_path = Some(prompt);
 2050                            rx
 2051                        })?;
 2052                        if let Ok(path) = rx.await {
 2053                            tx.send(path).ok();
 2054                        }
 2055                    }
 2056                };
 2057                anyhow::Ok(())
 2058            })
 2059            .detach();
 2060
 2061            rx
 2062        }
 2063    }
 2064
 2065    pub fn prompt_for_new_path(
 2066        &mut self,
 2067        lister: DirectoryLister,
 2068        window: &mut Window,
 2069        cx: &mut Context<Self>,
 2070    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2071        if self.project.read(cx).is_via_collab()
 2072            || self.project.read(cx).is_via_ssh()
 2073            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2074        {
 2075            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2076            let rx = prompt(self, lister, window, cx);
 2077            self.on_prompt_for_new_path = Some(prompt);
 2078            return rx;
 2079        }
 2080
 2081        let (tx, rx) = oneshot::channel();
 2082        cx.spawn_in(window, async move |workspace, cx| {
 2083            let abs_path = workspace.update(cx, |workspace, cx| {
 2084                let relative_to = workspace
 2085                    .most_recent_active_path(cx)
 2086                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2087                    .or_else(|| {
 2088                        let project = workspace.project.read(cx);
 2089                        project.visible_worktrees(cx).find_map(|worktree| {
 2090                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2091                        })
 2092                    })
 2093                    .or_else(std::env::home_dir)
 2094                    .unwrap_or_else(|| PathBuf::from(""));
 2095                cx.prompt_for_new_path(&relative_to)
 2096            })?;
 2097            let abs_path = match abs_path.await? {
 2098                Ok(path) => path,
 2099                Err(err) => {
 2100                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2101                        workspace.show_portal_error(err.to_string(), cx);
 2102
 2103                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2104                        let rx = prompt(workspace, lister, window, cx);
 2105                        workspace.on_prompt_for_new_path = Some(prompt);
 2106                        rx
 2107                    })?;
 2108                    if let Ok(path) = rx.await {
 2109                        tx.send(path).ok();
 2110                    }
 2111                    return anyhow::Ok(());
 2112                }
 2113            };
 2114
 2115            tx.send(abs_path.map(|path| vec![path])).ok();
 2116            anyhow::Ok(())
 2117        })
 2118        .detach();
 2119
 2120        rx
 2121    }
 2122
 2123    pub fn titlebar_item(&self) -> Option<AnyView> {
 2124        self.titlebar_item.clone()
 2125    }
 2126
 2127    /// Call the given callback with a workspace whose project is local.
 2128    ///
 2129    /// If the given workspace has a local project, then it will be passed
 2130    /// to the callback. Otherwise, a new empty window will be created.
 2131    pub fn with_local_workspace<T, F>(
 2132        &mut self,
 2133        window: &mut Window,
 2134        cx: &mut Context<Self>,
 2135        callback: F,
 2136    ) -> Task<Result<T>>
 2137    where
 2138        T: 'static,
 2139        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2140    {
 2141        if self.project.read(cx).is_local() {
 2142            Task::ready(Ok(callback(self, window, cx)))
 2143        } else {
 2144            let env = self.project.read(cx).cli_environment(cx);
 2145            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2146            cx.spawn_in(window, async move |_vh, cx| {
 2147                let (workspace, _) = task.await?;
 2148                workspace.update(cx, callback)
 2149            })
 2150        }
 2151    }
 2152
 2153    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2154        self.project.read(cx).worktrees(cx)
 2155    }
 2156
 2157    pub fn visible_worktrees<'a>(
 2158        &self,
 2159        cx: &'a App,
 2160    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2161        self.project.read(cx).visible_worktrees(cx)
 2162    }
 2163
 2164    #[cfg(any(test, feature = "test-support"))]
 2165    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2166        let futures = self
 2167            .worktrees(cx)
 2168            .filter_map(|worktree| worktree.read(cx).as_local())
 2169            .map(|worktree| worktree.scan_complete())
 2170            .collect::<Vec<_>>();
 2171        async move {
 2172            for future in futures {
 2173                future.await;
 2174            }
 2175        }
 2176    }
 2177
 2178    pub fn close_global(_: &CloseWindow, cx: &mut App) {
 2179        cx.defer(|cx| {
 2180            cx.windows().iter().find(|window| {
 2181                window
 2182                    .update(cx, |_, window, _| {
 2183                        if window.is_window_active() {
 2184                            //This can only get called when the window's project connection has been lost
 2185                            //so we don't need to prompt the user for anything and instead just close the window
 2186                            window.remove_window();
 2187                            true
 2188                        } else {
 2189                            false
 2190                        }
 2191                    })
 2192                    .unwrap_or(false)
 2193            });
 2194        });
 2195    }
 2196
 2197    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2198        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2199        cx.spawn_in(window, async move |_, cx| {
 2200            if prepare.await? {
 2201                cx.update(|window, _cx| window.remove_window())?;
 2202            }
 2203            anyhow::Ok(())
 2204        })
 2205        .detach_and_log_err(cx)
 2206    }
 2207
 2208    pub fn move_focused_panel_to_next_position(
 2209        &mut self,
 2210        _: &MoveFocusedPanelToNextPosition,
 2211        window: &mut Window,
 2212        cx: &mut Context<Self>,
 2213    ) {
 2214        let docks = self.all_docks();
 2215        let active_dock = docks
 2216            .into_iter()
 2217            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2218
 2219        if let Some(dock) = active_dock {
 2220            dock.update(cx, |dock, cx| {
 2221                let active_panel = dock
 2222                    .active_panel()
 2223                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2224
 2225                if let Some(panel) = active_panel {
 2226                    panel.move_to_next_position(window, cx);
 2227                }
 2228            })
 2229        }
 2230    }
 2231
 2232    pub fn prepare_to_close(
 2233        &mut self,
 2234        close_intent: CloseIntent,
 2235        window: &mut Window,
 2236        cx: &mut Context<Self>,
 2237    ) -> Task<Result<bool>> {
 2238        let active_call = self.active_call().cloned();
 2239
 2240        // On Linux and Windows, closing the last window should restore the last workspace.
 2241        let save_last_workspace = cfg!(not(target_os = "macos"))
 2242            && close_intent != CloseIntent::ReplaceWindow
 2243            && cx.windows().len() == 1;
 2244
 2245        cx.spawn_in(window, async move |this, cx| {
 2246            let workspace_count = cx.update(|_window, cx| {
 2247                cx.windows()
 2248                    .iter()
 2249                    .filter(|window| window.downcast::<Workspace>().is_some())
 2250                    .count()
 2251            })?;
 2252
 2253            if let Some(active_call) = active_call {
 2254                if close_intent != CloseIntent::Quit
 2255                    && workspace_count == 1
 2256                    && active_call.read_with(cx, |call, _| call.room().is_some())?
 2257                {
 2258                    let answer = cx.update(|window, cx| {
 2259                        window.prompt(
 2260                            PromptLevel::Warning,
 2261                            "Do you want to leave the current call?",
 2262                            None,
 2263                            &["Close window and hang up", "Cancel"],
 2264                            cx,
 2265                        )
 2266                    })?;
 2267
 2268                    if answer.await.log_err() == Some(1) {
 2269                        return anyhow::Ok(false);
 2270                    } else {
 2271                        active_call
 2272                            .update(cx, |call, cx| call.hang_up(cx))?
 2273                            .await
 2274                            .log_err();
 2275                    }
 2276                }
 2277            }
 2278
 2279            let save_result = this
 2280                .update_in(cx, |this, window, cx| {
 2281                    this.save_all_internal(SaveIntent::Close, window, cx)
 2282                })?
 2283                .await;
 2284
 2285            // If we're not quitting, but closing, we remove the workspace from
 2286            // the current session.
 2287            if close_intent != CloseIntent::Quit
 2288                && !save_last_workspace
 2289                && save_result.as_ref().map_or(false, |&res| res)
 2290            {
 2291                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2292                    .await;
 2293            }
 2294
 2295            save_result
 2296        })
 2297    }
 2298
 2299    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2300        self.save_all_internal(
 2301            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2302            window,
 2303            cx,
 2304        )
 2305        .detach_and_log_err(cx);
 2306    }
 2307
 2308    fn send_keystrokes(
 2309        &mut self,
 2310        action: &SendKeystrokes,
 2311        window: &mut Window,
 2312        cx: &mut Context<Self>,
 2313    ) {
 2314        let mut state = self.dispatching_keystrokes.borrow_mut();
 2315        if !state.0.insert(action.0.clone()) {
 2316            cx.propagate();
 2317            return;
 2318        }
 2319        let mut keystrokes: Vec<Keystroke> = action
 2320            .0
 2321            .split(' ')
 2322            .flat_map(|k| Keystroke::parse(k).log_err())
 2323            .collect();
 2324        keystrokes.reverse();
 2325
 2326        state.1.append(&mut keystrokes);
 2327        drop(state);
 2328
 2329        let keystrokes = self.dispatching_keystrokes.clone();
 2330        window
 2331            .spawn(cx, async move |cx| {
 2332                // limit to 100 keystrokes to avoid infinite recursion.
 2333                for _ in 0..100 {
 2334                    let Some(keystroke) = keystrokes.borrow_mut().1.pop() else {
 2335                        keystrokes.borrow_mut().0.clear();
 2336                        return Ok(());
 2337                    };
 2338                    cx.update(|window, cx| {
 2339                        let focused = window.focused(cx);
 2340                        window.dispatch_keystroke(keystroke.clone(), cx);
 2341                        if window.focused(cx) != focused {
 2342                            // dispatch_keystroke may cause the focus to change.
 2343                            // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2344                            // And we need that to happen before the next keystroke to keep vim mode happy...
 2345                            // (Note that the tests always do this implicitly, so you must manually test with something like:
 2346                            //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2347                            // )
 2348                            window.draw(cx).clear();
 2349                        }
 2350                    })?;
 2351                }
 2352
 2353                *keystrokes.borrow_mut() = Default::default();
 2354                anyhow::bail!("over 100 keystrokes passed to send_keystrokes");
 2355            })
 2356            .detach_and_log_err(cx);
 2357    }
 2358
 2359    fn save_all_internal(
 2360        &mut self,
 2361        mut save_intent: SaveIntent,
 2362        window: &mut Window,
 2363        cx: &mut Context<Self>,
 2364    ) -> Task<Result<bool>> {
 2365        if self.project.read(cx).is_disconnected(cx) {
 2366            return Task::ready(Ok(true));
 2367        }
 2368        let dirty_items = self
 2369            .panes
 2370            .iter()
 2371            .flat_map(|pane| {
 2372                pane.read(cx).items().filter_map(|item| {
 2373                    if item.is_dirty(cx) {
 2374                        item.tab_content_text(0, cx);
 2375                        Some((pane.downgrade(), item.boxed_clone()))
 2376                    } else {
 2377                        None
 2378                    }
 2379                })
 2380            })
 2381            .collect::<Vec<_>>();
 2382
 2383        let project = self.project.clone();
 2384        cx.spawn_in(window, async move |workspace, cx| {
 2385            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2386                let (serialize_tasks, remaining_dirty_items) =
 2387                    workspace.update_in(cx, |workspace, window, cx| {
 2388                        let mut remaining_dirty_items = Vec::new();
 2389                        let mut serialize_tasks = Vec::new();
 2390                        for (pane, item) in dirty_items {
 2391                            if let Some(task) = item
 2392                                .to_serializable_item_handle(cx)
 2393                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2394                            {
 2395                                serialize_tasks.push(task);
 2396                            } else {
 2397                                remaining_dirty_items.push((pane, item));
 2398                            }
 2399                        }
 2400                        (serialize_tasks, remaining_dirty_items)
 2401                    })?;
 2402
 2403                futures::future::try_join_all(serialize_tasks).await?;
 2404
 2405                if remaining_dirty_items.len() > 1 {
 2406                    let answer = workspace.update_in(cx, |_, window, cx| {
 2407                        let detail = Pane::file_names_for_prompt(
 2408                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2409                            cx,
 2410                        );
 2411                        window.prompt(
 2412                            PromptLevel::Warning,
 2413                            &"Do you want to save all changes in the following files?",
 2414                            Some(&detail),
 2415                            &["Save all", "Discard all", "Cancel"],
 2416                            cx,
 2417                        )
 2418                    })?;
 2419                    match answer.await.log_err() {
 2420                        Some(0) => save_intent = SaveIntent::SaveAll,
 2421                        Some(1) => save_intent = SaveIntent::Skip,
 2422                        Some(2) => return Ok(false),
 2423                        _ => {}
 2424                    }
 2425                }
 2426
 2427                remaining_dirty_items
 2428            } else {
 2429                dirty_items
 2430            };
 2431
 2432            for (pane, item) in dirty_items {
 2433                let (singleton, project_entry_ids) =
 2434                    cx.update(|_, cx| (item.is_singleton(cx), item.project_entry_ids(cx)))?;
 2435                if singleton || !project_entry_ids.is_empty() {
 2436                    if !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await? {
 2437                        return Ok(false);
 2438                    }
 2439                }
 2440            }
 2441            Ok(true)
 2442        })
 2443    }
 2444
 2445    pub fn open_workspace_for_paths(
 2446        &mut self,
 2447        replace_current_window: bool,
 2448        paths: Vec<PathBuf>,
 2449        window: &mut Window,
 2450        cx: &mut Context<Self>,
 2451    ) -> Task<Result<()>> {
 2452        let window_handle = window.window_handle().downcast::<Self>();
 2453        let is_remote = self.project.read(cx).is_via_collab();
 2454        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2455        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2456
 2457        let window_to_replace = if replace_current_window {
 2458            window_handle
 2459        } else if is_remote || has_worktree || has_dirty_items {
 2460            None
 2461        } else {
 2462            window_handle
 2463        };
 2464        let app_state = self.app_state.clone();
 2465
 2466        cx.spawn(async move |_, cx| {
 2467            cx.update(|cx| {
 2468                open_paths(
 2469                    &paths,
 2470                    app_state,
 2471                    OpenOptions {
 2472                        replace_window: window_to_replace,
 2473                        ..Default::default()
 2474                    },
 2475                    cx,
 2476                )
 2477            })?
 2478            .await?;
 2479            Ok(())
 2480        })
 2481    }
 2482
 2483    #[allow(clippy::type_complexity)]
 2484    pub fn open_paths(
 2485        &mut self,
 2486        mut abs_paths: Vec<PathBuf>,
 2487        options: OpenOptions,
 2488        pane: Option<WeakEntity<Pane>>,
 2489        window: &mut Window,
 2490        cx: &mut Context<Self>,
 2491    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2492        log::info!("open paths {abs_paths:?}");
 2493
 2494        let fs = self.app_state.fs.clone();
 2495
 2496        // Sort the paths to ensure we add worktrees for parents before their children.
 2497        abs_paths.sort_unstable();
 2498        cx.spawn_in(window, async move |this, cx| {
 2499            let mut tasks = Vec::with_capacity(abs_paths.len());
 2500
 2501            for abs_path in &abs_paths {
 2502                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2503                    OpenVisible::All => Some(true),
 2504                    OpenVisible::None => Some(false),
 2505                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2506                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2507                        Some(None) => Some(true),
 2508                        None => None,
 2509                    },
 2510                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2511                        Some(Some(metadata)) => Some(metadata.is_dir),
 2512                        Some(None) => Some(false),
 2513                        None => None,
 2514                    },
 2515                };
 2516                let project_path = match visible {
 2517                    Some(visible) => match this
 2518                        .update(cx, |this, cx| {
 2519                            Workspace::project_path_for_path(
 2520                                this.project.clone(),
 2521                                abs_path,
 2522                                visible,
 2523                                cx,
 2524                            )
 2525                        })
 2526                        .log_err()
 2527                    {
 2528                        Some(project_path) => project_path.await.log_err(),
 2529                        None => None,
 2530                    },
 2531                    None => None,
 2532                };
 2533
 2534                let this = this.clone();
 2535                let abs_path: Arc<Path> = SanitizedPath::from(abs_path.clone()).into();
 2536                let fs = fs.clone();
 2537                let pane = pane.clone();
 2538                let task = cx.spawn(async move |cx| {
 2539                    let (worktree, project_path) = project_path?;
 2540                    if fs.is_dir(&abs_path).await {
 2541                        this.update(cx, |workspace, cx| {
 2542                            let worktree = worktree.read(cx);
 2543                            let worktree_abs_path = worktree.abs_path();
 2544                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2545                                worktree.root_entry()
 2546                            } else {
 2547                                abs_path
 2548                                    .strip_prefix(worktree_abs_path.as_ref())
 2549                                    .ok()
 2550                                    .and_then(|relative_path| {
 2551                                        worktree.entry_for_path(relative_path)
 2552                                    })
 2553                            }
 2554                            .map(|entry| entry.id);
 2555                            if let Some(entry_id) = entry_id {
 2556                                workspace.project.update(cx, |_, cx| {
 2557                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2558                                })
 2559                            }
 2560                        })
 2561                        .ok()?;
 2562                        None
 2563                    } else {
 2564                        Some(
 2565                            this.update_in(cx, |this, window, cx| {
 2566                                this.open_path(
 2567                                    project_path,
 2568                                    pane,
 2569                                    options.focus.unwrap_or(true),
 2570                                    window,
 2571                                    cx,
 2572                                )
 2573                            })
 2574                            .ok()?
 2575                            .await,
 2576                        )
 2577                    }
 2578                });
 2579                tasks.push(task);
 2580            }
 2581
 2582            futures::future::join_all(tasks).await
 2583        })
 2584    }
 2585
 2586    pub fn open_resolved_path(
 2587        &mut self,
 2588        path: ResolvedPath,
 2589        window: &mut Window,
 2590        cx: &mut Context<Self>,
 2591    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2592        match path {
 2593            ResolvedPath::ProjectPath { project_path, .. } => {
 2594                self.open_path(project_path, None, true, window, cx)
 2595            }
 2596            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2597                path,
 2598                OpenOptions {
 2599                    visible: Some(OpenVisible::None),
 2600                    ..Default::default()
 2601                },
 2602                window,
 2603                cx,
 2604            ),
 2605        }
 2606    }
 2607
 2608    pub fn absolute_path_of_worktree(
 2609        &self,
 2610        worktree_id: WorktreeId,
 2611        cx: &mut Context<Self>,
 2612    ) -> Option<PathBuf> {
 2613        self.project
 2614            .read(cx)
 2615            .worktree_for_id(worktree_id, cx)
 2616            // TODO: use `abs_path` or `root_dir`
 2617            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2618    }
 2619
 2620    fn add_folder_to_project(
 2621        &mut self,
 2622        _: &AddFolderToProject,
 2623        window: &mut Window,
 2624        cx: &mut Context<Self>,
 2625    ) {
 2626        let project = self.project.read(cx);
 2627        if project.is_via_collab() {
 2628            self.show_error(
 2629                &anyhow!("You cannot add folders to someone else's project"),
 2630                cx,
 2631            );
 2632            return;
 2633        }
 2634        let paths = self.prompt_for_open_path(
 2635            PathPromptOptions {
 2636                files: false,
 2637                directories: true,
 2638                multiple: true,
 2639            },
 2640            DirectoryLister::Project(self.project.clone()),
 2641            window,
 2642            cx,
 2643        );
 2644        cx.spawn_in(window, async move |this, cx| {
 2645            if let Some(paths) = paths.await.log_err().flatten() {
 2646                let results = this
 2647                    .update_in(cx, |this, window, cx| {
 2648                        this.open_paths(
 2649                            paths,
 2650                            OpenOptions {
 2651                                visible: Some(OpenVisible::All),
 2652                                ..Default::default()
 2653                            },
 2654                            None,
 2655                            window,
 2656                            cx,
 2657                        )
 2658                    })?
 2659                    .await;
 2660                for result in results.into_iter().flatten() {
 2661                    result.log_err();
 2662                }
 2663            }
 2664            anyhow::Ok(())
 2665        })
 2666        .detach_and_log_err(cx);
 2667    }
 2668
 2669    pub fn project_path_for_path(
 2670        project: Entity<Project>,
 2671        abs_path: &Path,
 2672        visible: bool,
 2673        cx: &mut App,
 2674    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2675        let entry = project.update(cx, |project, cx| {
 2676            project.find_or_create_worktree(abs_path, visible, cx)
 2677        });
 2678        cx.spawn(async move |cx| {
 2679            let (worktree, path) = entry.await?;
 2680            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2681            Ok((
 2682                worktree,
 2683                ProjectPath {
 2684                    worktree_id,
 2685                    path: path.into(),
 2686                },
 2687            ))
 2688        })
 2689    }
 2690
 2691    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2692        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2693    }
 2694
 2695    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2696        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2697    }
 2698
 2699    pub fn items_of_type<'a, T: Item>(
 2700        &'a self,
 2701        cx: &'a App,
 2702    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2703        self.panes
 2704            .iter()
 2705            .flat_map(|pane| pane.read(cx).items_of_type())
 2706    }
 2707
 2708    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2709        self.active_pane().read(cx).active_item()
 2710    }
 2711
 2712    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2713        let item = self.active_item(cx)?;
 2714        item.to_any().downcast::<I>().ok()
 2715    }
 2716
 2717    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2718        self.active_item(cx).and_then(|item| item.project_path(cx))
 2719    }
 2720
 2721    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2722        self.recent_navigation_history_iter(cx)
 2723            .filter_map(|(path, abs_path)| {
 2724                let worktree = self
 2725                    .project
 2726                    .read(cx)
 2727                    .worktree_for_id(path.worktree_id, cx)?;
 2728                if worktree.read(cx).is_visible() {
 2729                    abs_path
 2730                } else {
 2731                    None
 2732                }
 2733            })
 2734            .next()
 2735    }
 2736
 2737    pub fn save_active_item(
 2738        &mut self,
 2739        save_intent: SaveIntent,
 2740        window: &mut Window,
 2741        cx: &mut App,
 2742    ) -> Task<Result<()>> {
 2743        let project = self.project.clone();
 2744        let pane = self.active_pane();
 2745        let item = pane.read(cx).active_item();
 2746        let pane = pane.downgrade();
 2747
 2748        window.spawn(cx, async move |mut cx| {
 2749            if let Some(item) = item {
 2750                Pane::save_item(project, &pane, item.as_ref(), save_intent, &mut cx)
 2751                    .await
 2752                    .map(|_| ())
 2753            } else {
 2754                Ok(())
 2755            }
 2756        })
 2757    }
 2758
 2759    pub fn close_inactive_items_and_panes(
 2760        &mut self,
 2761        action: &CloseInactiveTabsAndPanes,
 2762        window: &mut Window,
 2763        cx: &mut Context<Self>,
 2764    ) {
 2765        if let Some(task) = self.close_all_internal(
 2766            true,
 2767            action.save_intent.unwrap_or(SaveIntent::Close),
 2768            window,
 2769            cx,
 2770        ) {
 2771            task.detach_and_log_err(cx)
 2772        }
 2773    }
 2774
 2775    pub fn close_all_items_and_panes(
 2776        &mut self,
 2777        action: &CloseAllItemsAndPanes,
 2778        window: &mut Window,
 2779        cx: &mut Context<Self>,
 2780    ) {
 2781        if let Some(task) = self.close_all_internal(
 2782            false,
 2783            action.save_intent.unwrap_or(SaveIntent::Close),
 2784            window,
 2785            cx,
 2786        ) {
 2787            task.detach_and_log_err(cx)
 2788        }
 2789    }
 2790
 2791    fn close_all_internal(
 2792        &mut self,
 2793        retain_active_pane: bool,
 2794        save_intent: SaveIntent,
 2795        window: &mut Window,
 2796        cx: &mut Context<Self>,
 2797    ) -> Option<Task<Result<()>>> {
 2798        let current_pane = self.active_pane();
 2799
 2800        let mut tasks = Vec::new();
 2801
 2802        if retain_active_pane {
 2803            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2804                pane.close_other_items(
 2805                    &CloseOtherItems {
 2806                        save_intent: None,
 2807                        close_pinned: false,
 2808                    },
 2809                    None,
 2810                    window,
 2811                    cx,
 2812                )
 2813            });
 2814
 2815            tasks.push(current_pane_close);
 2816        }
 2817
 2818        for pane in self.panes() {
 2819            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2820                continue;
 2821            }
 2822
 2823            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2824                pane.close_all_items(
 2825                    &CloseAllItems {
 2826                        save_intent: Some(save_intent),
 2827                        close_pinned: false,
 2828                    },
 2829                    window,
 2830                    cx,
 2831                )
 2832            });
 2833
 2834            tasks.push(close_pane_items)
 2835        }
 2836
 2837        if tasks.is_empty() {
 2838            None
 2839        } else {
 2840            Some(cx.spawn_in(window, async move |_, _| {
 2841                for task in tasks {
 2842                    task.await?
 2843                }
 2844                Ok(())
 2845            }))
 2846        }
 2847    }
 2848
 2849    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 2850        self.dock_at_position(position).read(cx).is_open()
 2851    }
 2852
 2853    pub fn toggle_dock(
 2854        &mut self,
 2855        dock_side: DockPosition,
 2856        window: &mut Window,
 2857        cx: &mut Context<Self>,
 2858    ) {
 2859        let dock = self.dock_at_position(dock_side);
 2860        let mut focus_center = false;
 2861        let mut reveal_dock = false;
 2862        dock.update(cx, |dock, cx| {
 2863            let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 2864            let was_visible = dock.is_open() && !other_is_zoomed;
 2865            dock.set_open(!was_visible, window, cx);
 2866
 2867            if dock.active_panel().is_none() {
 2868                let Some(panel_ix) = dock
 2869                    .first_enabled_panel_idx(cx)
 2870                    .log_with_level(log::Level::Info)
 2871                else {
 2872                    return;
 2873                };
 2874                dock.activate_panel(panel_ix, window, cx);
 2875            }
 2876
 2877            if let Some(active_panel) = dock.active_panel() {
 2878                if was_visible {
 2879                    if active_panel
 2880                        .panel_focus_handle(cx)
 2881                        .contains_focused(window, cx)
 2882                    {
 2883                        focus_center = true;
 2884                    }
 2885                } else {
 2886                    let focus_handle = &active_panel.panel_focus_handle(cx);
 2887                    window.focus(focus_handle);
 2888                    reveal_dock = true;
 2889                }
 2890            }
 2891        });
 2892
 2893        if reveal_dock {
 2894            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 2895        }
 2896
 2897        if focus_center {
 2898            self.active_pane
 2899                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 2900        }
 2901
 2902        cx.notify();
 2903        self.serialize_workspace(window, cx);
 2904    }
 2905
 2906    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 2907        self.all_docks().into_iter().find(|&dock| {
 2908            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 2909        })
 2910    }
 2911
 2912    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 2913        if let Some(dock) = self.active_dock(window, cx) {
 2914            dock.update(cx, |dock, cx| {
 2915                dock.set_open(false, window, cx);
 2916            });
 2917            return true;
 2918        }
 2919        false
 2920    }
 2921
 2922    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 2923        for dock in self.all_docks() {
 2924            dock.update(cx, |dock, cx| {
 2925                dock.set_open(false, window, cx);
 2926            });
 2927        }
 2928
 2929        cx.focus_self(window);
 2930        cx.notify();
 2931        self.serialize_workspace(window, cx);
 2932    }
 2933
 2934    /// Transfer focus to the panel of the given type.
 2935    pub fn focus_panel<T: Panel>(
 2936        &mut self,
 2937        window: &mut Window,
 2938        cx: &mut Context<Self>,
 2939    ) -> Option<Entity<T>> {
 2940        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 2941        panel.to_any().downcast().ok()
 2942    }
 2943
 2944    /// Focus the panel of the given type if it isn't already focused. If it is
 2945    /// already focused, then transfer focus back to the workspace center.
 2946    pub fn toggle_panel_focus<T: Panel>(
 2947        &mut self,
 2948        window: &mut Window,
 2949        cx: &mut Context<Self>,
 2950    ) -> bool {
 2951        let mut did_focus_panel = false;
 2952        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 2953            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 2954            did_focus_panel
 2955        });
 2956        did_focus_panel
 2957    }
 2958
 2959    pub fn activate_panel_for_proto_id(
 2960        &mut self,
 2961        panel_id: PanelId,
 2962        window: &mut Window,
 2963        cx: &mut Context<Self>,
 2964    ) -> Option<Arc<dyn PanelHandle>> {
 2965        let mut panel = None;
 2966        for dock in self.all_docks() {
 2967            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 2968                panel = dock.update(cx, |dock, cx| {
 2969                    dock.activate_panel(panel_index, window, cx);
 2970                    dock.set_open(true, window, cx);
 2971                    dock.active_panel().cloned()
 2972                });
 2973                break;
 2974            }
 2975        }
 2976
 2977        if panel.is_some() {
 2978            cx.notify();
 2979            self.serialize_workspace(window, cx);
 2980        }
 2981
 2982        panel
 2983    }
 2984
 2985    /// Focus or unfocus the given panel type, depending on the given callback.
 2986    fn focus_or_unfocus_panel<T: Panel>(
 2987        &mut self,
 2988        window: &mut Window,
 2989        cx: &mut Context<Self>,
 2990        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 2991    ) -> Option<Arc<dyn PanelHandle>> {
 2992        let mut result_panel = None;
 2993        let mut serialize = false;
 2994        for dock in self.all_docks() {
 2995            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 2996                let mut focus_center = false;
 2997                let panel = dock.update(cx, |dock, cx| {
 2998                    dock.activate_panel(panel_index, window, cx);
 2999
 3000                    let panel = dock.active_panel().cloned();
 3001                    if let Some(panel) = panel.as_ref() {
 3002                        if should_focus(&**panel, window, cx) {
 3003                            dock.set_open(true, window, cx);
 3004                            panel.panel_focus_handle(cx).focus(window);
 3005                        } else {
 3006                            focus_center = true;
 3007                        }
 3008                    }
 3009                    panel
 3010                });
 3011
 3012                if focus_center {
 3013                    self.active_pane
 3014                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3015                }
 3016
 3017                result_panel = panel;
 3018                serialize = true;
 3019                break;
 3020            }
 3021        }
 3022
 3023        if serialize {
 3024            self.serialize_workspace(window, cx);
 3025        }
 3026
 3027        cx.notify();
 3028        result_panel
 3029    }
 3030
 3031    /// Open the panel of the given type
 3032    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3033        for dock in self.all_docks() {
 3034            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3035                dock.update(cx, |dock, cx| {
 3036                    dock.activate_panel(panel_index, window, cx);
 3037                    dock.set_open(true, window, cx);
 3038                });
 3039            }
 3040        }
 3041    }
 3042
 3043    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3044        self.all_docks()
 3045            .iter()
 3046            .find_map(|dock| dock.read(cx).panel::<T>())
 3047    }
 3048
 3049    fn dismiss_zoomed_items_to_reveal(
 3050        &mut self,
 3051        dock_to_reveal: Option<DockPosition>,
 3052        window: &mut Window,
 3053        cx: &mut Context<Self>,
 3054    ) {
 3055        // If a center pane is zoomed, unzoom it.
 3056        for pane in &self.panes {
 3057            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3058                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3059            }
 3060        }
 3061
 3062        // If another dock is zoomed, hide it.
 3063        let mut focus_center = false;
 3064        for dock in self.all_docks() {
 3065            dock.update(cx, |dock, cx| {
 3066                if Some(dock.position()) != dock_to_reveal {
 3067                    if let Some(panel) = dock.active_panel() {
 3068                        if panel.is_zoomed(window, cx) {
 3069                            focus_center |=
 3070                                panel.panel_focus_handle(cx).contains_focused(window, cx);
 3071                            dock.set_open(false, window, cx);
 3072                        }
 3073                    }
 3074                }
 3075            });
 3076        }
 3077
 3078        if focus_center {
 3079            self.active_pane
 3080                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3081        }
 3082
 3083        if self.zoomed_position != dock_to_reveal {
 3084            self.zoomed = None;
 3085            self.zoomed_position = None;
 3086            cx.emit(Event::ZoomChanged);
 3087        }
 3088
 3089        cx.notify();
 3090    }
 3091
 3092    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3093        let pane = cx.new(|cx| {
 3094            let mut pane = Pane::new(
 3095                self.weak_handle(),
 3096                self.project.clone(),
 3097                self.pane_history_timestamp.clone(),
 3098                None,
 3099                NewFile.boxed_clone(),
 3100                window,
 3101                cx,
 3102            );
 3103            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3104            pane
 3105        });
 3106        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3107            .detach();
 3108        self.panes.push(pane.clone());
 3109
 3110        window.focus(&pane.focus_handle(cx));
 3111
 3112        cx.emit(Event::PaneAdded(pane.clone()));
 3113        pane
 3114    }
 3115
 3116    pub fn add_item_to_center(
 3117        &mut self,
 3118        item: Box<dyn ItemHandle>,
 3119        window: &mut Window,
 3120        cx: &mut Context<Self>,
 3121    ) -> bool {
 3122        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3123            if let Some(center_pane) = center_pane.upgrade() {
 3124                center_pane.update(cx, |pane, cx| {
 3125                    pane.add_item(item, true, true, None, window, cx)
 3126                });
 3127                true
 3128            } else {
 3129                false
 3130            }
 3131        } else {
 3132            false
 3133        }
 3134    }
 3135
 3136    pub fn add_item_to_active_pane(
 3137        &mut self,
 3138        item: Box<dyn ItemHandle>,
 3139        destination_index: Option<usize>,
 3140        focus_item: bool,
 3141        window: &mut Window,
 3142        cx: &mut App,
 3143    ) {
 3144        self.add_item(
 3145            self.active_pane.clone(),
 3146            item,
 3147            destination_index,
 3148            false,
 3149            focus_item,
 3150            window,
 3151            cx,
 3152        )
 3153    }
 3154
 3155    pub fn add_item(
 3156        &mut self,
 3157        pane: Entity<Pane>,
 3158        item: Box<dyn ItemHandle>,
 3159        destination_index: Option<usize>,
 3160        activate_pane: bool,
 3161        focus_item: bool,
 3162        window: &mut Window,
 3163        cx: &mut App,
 3164    ) {
 3165        if let Some(text) = item.telemetry_event_text(cx) {
 3166            telemetry::event!(text);
 3167        }
 3168
 3169        pane.update(cx, |pane, cx| {
 3170            pane.add_item(
 3171                item,
 3172                activate_pane,
 3173                focus_item,
 3174                destination_index,
 3175                window,
 3176                cx,
 3177            )
 3178        });
 3179    }
 3180
 3181    pub fn split_item(
 3182        &mut self,
 3183        split_direction: SplitDirection,
 3184        item: Box<dyn ItemHandle>,
 3185        window: &mut Window,
 3186        cx: &mut Context<Self>,
 3187    ) {
 3188        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3189        self.add_item(new_pane, item, None, true, true, window, cx);
 3190    }
 3191
 3192    pub fn open_abs_path(
 3193        &mut self,
 3194        abs_path: PathBuf,
 3195        options: OpenOptions,
 3196        window: &mut Window,
 3197        cx: &mut Context<Self>,
 3198    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3199        cx.spawn_in(window, async move |workspace, cx| {
 3200            let open_paths_task_result = workspace
 3201                .update_in(cx, |workspace, window, cx| {
 3202                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3203                })
 3204                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3205                .await;
 3206            anyhow::ensure!(
 3207                open_paths_task_result.len() == 1,
 3208                "open abs path {abs_path:?} task returned incorrect number of results"
 3209            );
 3210            match open_paths_task_result
 3211                .into_iter()
 3212                .next()
 3213                .expect("ensured single task result")
 3214            {
 3215                Some(open_result) => {
 3216                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3217                }
 3218                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3219            }
 3220        })
 3221    }
 3222
 3223    pub fn split_abs_path(
 3224        &mut self,
 3225        abs_path: PathBuf,
 3226        visible: bool,
 3227        window: &mut Window,
 3228        cx: &mut Context<Self>,
 3229    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3230        let project_path_task =
 3231            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3232        cx.spawn_in(window, async move |this, cx| {
 3233            let (_, path) = project_path_task.await?;
 3234            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3235                .await
 3236        })
 3237    }
 3238
 3239    pub fn open_path(
 3240        &mut self,
 3241        path: impl Into<ProjectPath>,
 3242        pane: Option<WeakEntity<Pane>>,
 3243        focus_item: bool,
 3244        window: &mut Window,
 3245        cx: &mut App,
 3246    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3247        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3248    }
 3249
 3250    pub fn open_path_preview(
 3251        &mut self,
 3252        path: impl Into<ProjectPath>,
 3253        pane: Option<WeakEntity<Pane>>,
 3254        focus_item: bool,
 3255        allow_preview: bool,
 3256        activate: bool,
 3257        window: &mut Window,
 3258        cx: &mut App,
 3259    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3260        let pane = pane.unwrap_or_else(|| {
 3261            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3262                self.panes
 3263                    .first()
 3264                    .expect("There must be an active pane")
 3265                    .downgrade()
 3266            })
 3267        });
 3268
 3269        let project_path = path.into();
 3270        let task = self.load_path(project_path.clone(), window, cx);
 3271        window.spawn(cx, async move |cx| {
 3272            let (project_entry_id, build_item) = task.await?;
 3273            let result = pane.update_in(cx, |pane, window, cx| {
 3274                pane.open_item(
 3275                    project_entry_id,
 3276                    project_path,
 3277                    focus_item,
 3278                    allow_preview,
 3279                    activate,
 3280                    None,
 3281                    window,
 3282                    cx,
 3283                    build_item,
 3284                )
 3285            });
 3286            result
 3287        })
 3288    }
 3289
 3290    pub fn split_path(
 3291        &mut self,
 3292        path: impl Into<ProjectPath>,
 3293        window: &mut Window,
 3294        cx: &mut Context<Self>,
 3295    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3296        self.split_path_preview(path, false, None, window, cx)
 3297    }
 3298
 3299    pub fn split_path_preview(
 3300        &mut self,
 3301        path: impl Into<ProjectPath>,
 3302        allow_preview: bool,
 3303        split_direction: Option<SplitDirection>,
 3304        window: &mut Window,
 3305        cx: &mut Context<Self>,
 3306    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3307        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3308            self.panes
 3309                .first()
 3310                .expect("There must be an active pane")
 3311                .downgrade()
 3312        });
 3313
 3314        if let Member::Pane(center_pane) = &self.center.root {
 3315            if center_pane.read(cx).items_len() == 0 {
 3316                return self.open_path(path, Some(pane), true, window, cx);
 3317            }
 3318        }
 3319
 3320        let project_path = path.into();
 3321        let task = self.load_path(project_path.clone(), window, cx);
 3322        cx.spawn_in(window, async move |this, cx| {
 3323            let (project_entry_id, build_item) = task.await?;
 3324            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3325                let pane = pane.upgrade()?;
 3326                let new_pane = this.split_pane(
 3327                    pane,
 3328                    split_direction.unwrap_or(SplitDirection::Right),
 3329                    window,
 3330                    cx,
 3331                );
 3332                new_pane.update(cx, |new_pane, cx| {
 3333                    Some(new_pane.open_item(
 3334                        project_entry_id,
 3335                        project_path,
 3336                        true,
 3337                        allow_preview,
 3338                        true,
 3339                        None,
 3340                        window,
 3341                        cx,
 3342                        build_item,
 3343                    ))
 3344                })
 3345            })
 3346            .map(|option| option.context("pane was dropped"))?
 3347        })
 3348    }
 3349
 3350    fn load_path(
 3351        &mut self,
 3352        path: ProjectPath,
 3353        window: &mut Window,
 3354        cx: &mut App,
 3355    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3356        let project = self.project().clone();
 3357        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3358        registry.open_path(&project, &path, window, cx)
 3359    }
 3360
 3361    pub fn find_project_item<T>(
 3362        &self,
 3363        pane: &Entity<Pane>,
 3364        project_item: &Entity<T::Item>,
 3365        cx: &App,
 3366    ) -> Option<Entity<T>>
 3367    where
 3368        T: ProjectItem,
 3369    {
 3370        use project::ProjectItem as _;
 3371        let project_item = project_item.read(cx);
 3372        let entry_id = project_item.entry_id(cx);
 3373        let project_path = project_item.project_path(cx);
 3374
 3375        let mut item = None;
 3376        if let Some(entry_id) = entry_id {
 3377            item = pane.read(cx).item_for_entry(entry_id, cx);
 3378        }
 3379        if item.is_none() {
 3380            if let Some(project_path) = project_path {
 3381                item = pane.read(cx).item_for_path(project_path, cx);
 3382            }
 3383        }
 3384
 3385        item.and_then(|item| item.downcast::<T>())
 3386    }
 3387
 3388    pub fn is_project_item_open<T>(
 3389        &self,
 3390        pane: &Entity<Pane>,
 3391        project_item: &Entity<T::Item>,
 3392        cx: &App,
 3393    ) -> bool
 3394    where
 3395        T: ProjectItem,
 3396    {
 3397        self.find_project_item::<T>(pane, project_item, cx)
 3398            .is_some()
 3399    }
 3400
 3401    pub fn open_project_item<T>(
 3402        &mut self,
 3403        pane: Entity<Pane>,
 3404        project_item: Entity<T::Item>,
 3405        activate_pane: bool,
 3406        focus_item: bool,
 3407        window: &mut Window,
 3408        cx: &mut Context<Self>,
 3409    ) -> Entity<T>
 3410    where
 3411        T: ProjectItem,
 3412    {
 3413        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3414            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3415            return item;
 3416        }
 3417
 3418        let item = pane.update(cx, |pane, cx| {
 3419            cx.new(|cx| {
 3420                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3421            })
 3422        });
 3423        let item_id = item.item_id();
 3424        let mut destination_index = None;
 3425        pane.update(cx, |pane, cx| {
 3426            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
 3427                if let Some(preview_item_id) = pane.preview_item_id() {
 3428                    if preview_item_id != item_id {
 3429                        destination_index = pane.close_current_preview_item(window, cx);
 3430                    }
 3431                }
 3432            }
 3433            pane.set_preview_item_id(Some(item.item_id()), cx)
 3434        });
 3435
 3436        self.add_item(
 3437            pane,
 3438            Box::new(item.clone()),
 3439            destination_index,
 3440            activate_pane,
 3441            focus_item,
 3442            window,
 3443            cx,
 3444        );
 3445        item
 3446    }
 3447
 3448    pub fn open_shared_screen(
 3449        &mut self,
 3450        peer_id: PeerId,
 3451        window: &mut Window,
 3452        cx: &mut Context<Self>,
 3453    ) {
 3454        if let Some(shared_screen) =
 3455            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3456        {
 3457            self.active_pane.update(cx, |pane, cx| {
 3458                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3459            });
 3460        }
 3461    }
 3462
 3463    pub fn activate_item(
 3464        &mut self,
 3465        item: &dyn ItemHandle,
 3466        activate_pane: bool,
 3467        focus_item: bool,
 3468        window: &mut Window,
 3469        cx: &mut App,
 3470    ) -> bool {
 3471        let result = self.panes.iter().find_map(|pane| {
 3472            pane.read(cx)
 3473                .index_for_item(item)
 3474                .map(|ix| (pane.clone(), ix))
 3475        });
 3476        if let Some((pane, ix)) = result {
 3477            pane.update(cx, |pane, cx| {
 3478                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3479            });
 3480            true
 3481        } else {
 3482            false
 3483        }
 3484    }
 3485
 3486    fn activate_pane_at_index(
 3487        &mut self,
 3488        action: &ActivatePane,
 3489        window: &mut Window,
 3490        cx: &mut Context<Self>,
 3491    ) {
 3492        let panes = self.center.panes();
 3493        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3494            window.focus(&pane.focus_handle(cx));
 3495        } else {
 3496            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx);
 3497        }
 3498    }
 3499
 3500    fn move_item_to_pane_at_index(
 3501        &mut self,
 3502        action: &MoveItemToPane,
 3503        window: &mut Window,
 3504        cx: &mut Context<Self>,
 3505    ) {
 3506        let panes = self.center.panes();
 3507        let destination = match panes.get(action.destination) {
 3508            Some(&destination) => destination.clone(),
 3509            None => {
 3510                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3511                    return;
 3512                }
 3513                let direction = SplitDirection::Right;
 3514                let split_off_pane = self
 3515                    .find_pane_in_direction(direction, cx)
 3516                    .unwrap_or_else(|| self.active_pane.clone());
 3517                let new_pane = self.add_pane(window, cx);
 3518                if self
 3519                    .center
 3520                    .split(&split_off_pane, &new_pane, direction)
 3521                    .log_err()
 3522                    .is_none()
 3523                {
 3524                    return;
 3525                };
 3526                new_pane
 3527            }
 3528        };
 3529
 3530        if action.clone {
 3531            clone_active_item(
 3532                self.database_id(),
 3533                &self.active_pane,
 3534                &destination,
 3535                action.focus,
 3536                window,
 3537                cx,
 3538            )
 3539        } else {
 3540            move_active_item(
 3541                &self.active_pane,
 3542                &destination,
 3543                action.focus,
 3544                true,
 3545                window,
 3546                cx,
 3547            )
 3548        }
 3549    }
 3550
 3551    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3552        let panes = self.center.panes();
 3553        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3554            let next_ix = (ix + 1) % panes.len();
 3555            let next_pane = panes[next_ix].clone();
 3556            window.focus(&next_pane.focus_handle(cx));
 3557        }
 3558    }
 3559
 3560    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3561        let panes = self.center.panes();
 3562        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3563            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3564            let prev_pane = panes[prev_ix].clone();
 3565            window.focus(&prev_pane.focus_handle(cx));
 3566        }
 3567    }
 3568
 3569    pub fn activate_pane_in_direction(
 3570        &mut self,
 3571        direction: SplitDirection,
 3572        window: &mut Window,
 3573        cx: &mut App,
 3574    ) {
 3575        use ActivateInDirectionTarget as Target;
 3576        enum Origin {
 3577            LeftDock,
 3578            RightDock,
 3579            BottomDock,
 3580            Center,
 3581        }
 3582
 3583        let origin: Origin = [
 3584            (&self.left_dock, Origin::LeftDock),
 3585            (&self.right_dock, Origin::RightDock),
 3586            (&self.bottom_dock, Origin::BottomDock),
 3587        ]
 3588        .into_iter()
 3589        .find_map(|(dock, origin)| {
 3590            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3591                Some(origin)
 3592            } else {
 3593                None
 3594            }
 3595        })
 3596        .unwrap_or(Origin::Center);
 3597
 3598        let get_last_active_pane = || {
 3599            let pane = self
 3600                .last_active_center_pane
 3601                .clone()
 3602                .unwrap_or_else(|| {
 3603                    self.panes
 3604                        .first()
 3605                        .expect("There must be an active pane")
 3606                        .downgrade()
 3607                })
 3608                .upgrade()?;
 3609            (pane.read(cx).items_len() != 0).then_some(pane)
 3610        };
 3611
 3612        let try_dock =
 3613            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3614
 3615        let target = match (origin, direction) {
 3616            // We're in the center, so we first try to go to a different pane,
 3617            // otherwise try to go to a dock.
 3618            (Origin::Center, direction) => {
 3619                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3620                    Some(Target::Pane(pane))
 3621                } else {
 3622                    match direction {
 3623                        SplitDirection::Up => None,
 3624                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3625                        SplitDirection::Left => try_dock(&self.left_dock),
 3626                        SplitDirection::Right => try_dock(&self.right_dock),
 3627                    }
 3628                }
 3629            }
 3630
 3631            (Origin::LeftDock, SplitDirection::Right) => {
 3632                if let Some(last_active_pane) = get_last_active_pane() {
 3633                    Some(Target::Pane(last_active_pane))
 3634                } else {
 3635                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3636                }
 3637            }
 3638
 3639            (Origin::LeftDock, SplitDirection::Down)
 3640            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3641
 3642            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3643            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3644            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3645
 3646            (Origin::RightDock, SplitDirection::Left) => {
 3647                if let Some(last_active_pane) = get_last_active_pane() {
 3648                    Some(Target::Pane(last_active_pane))
 3649                } else {
 3650                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3651                }
 3652            }
 3653
 3654            _ => None,
 3655        };
 3656
 3657        match target {
 3658            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3659                let pane = pane.read(cx);
 3660                if let Some(item) = pane.active_item() {
 3661                    item.item_focus_handle(cx).focus(window);
 3662                } else {
 3663                    log::error!(
 3664                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3665                    );
 3666                }
 3667            }
 3668            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3669                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3670                window.defer(cx, move |window, cx| {
 3671                    let dock = dock.read(cx);
 3672                    if let Some(panel) = dock.active_panel() {
 3673                        panel.panel_focus_handle(cx).focus(window);
 3674                    } else {
 3675                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3676                    }
 3677                })
 3678            }
 3679            None => {}
 3680        }
 3681    }
 3682
 3683    pub fn move_item_to_pane_in_direction(
 3684        &mut self,
 3685        action: &MoveItemToPaneInDirection,
 3686        window: &mut Window,
 3687        cx: &mut Context<Self>,
 3688    ) {
 3689        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3690            Some(destination) => destination,
 3691            None => {
 3692                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3693                    return;
 3694                }
 3695                let new_pane = self.add_pane(window, cx);
 3696                if self
 3697                    .center
 3698                    .split(&self.active_pane, &new_pane, action.direction)
 3699                    .log_err()
 3700                    .is_none()
 3701                {
 3702                    return;
 3703                };
 3704                new_pane
 3705            }
 3706        };
 3707
 3708        if action.clone {
 3709            clone_active_item(
 3710                self.database_id(),
 3711                &self.active_pane,
 3712                &destination,
 3713                action.focus,
 3714                window,
 3715                cx,
 3716            )
 3717        } else {
 3718            move_active_item(
 3719                &self.active_pane,
 3720                &destination,
 3721                action.focus,
 3722                true,
 3723                window,
 3724                cx,
 3725            );
 3726        }
 3727    }
 3728
 3729    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3730        self.center.bounding_box_for_pane(pane)
 3731    }
 3732
 3733    pub fn find_pane_in_direction(
 3734        &mut self,
 3735        direction: SplitDirection,
 3736        cx: &App,
 3737    ) -> Option<Entity<Pane>> {
 3738        self.center
 3739            .find_pane_in_direction(&self.active_pane, direction, cx)
 3740            .cloned()
 3741    }
 3742
 3743    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3744        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3745            self.center.swap(&self.active_pane, &to);
 3746            cx.notify();
 3747        }
 3748    }
 3749
 3750    pub fn resize_pane(
 3751        &mut self,
 3752        axis: gpui::Axis,
 3753        amount: Pixels,
 3754        window: &mut Window,
 3755        cx: &mut Context<Self>,
 3756    ) {
 3757        let docks = self.all_docks();
 3758        let active_dock = docks
 3759            .into_iter()
 3760            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3761
 3762        if let Some(dock) = active_dock {
 3763            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3764                return;
 3765            };
 3766            match dock.read(cx).position() {
 3767                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 3768                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 3769                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 3770            }
 3771        } else {
 3772            self.center
 3773                .resize(&self.active_pane, axis, amount, &self.bounds);
 3774        }
 3775        cx.notify();
 3776    }
 3777
 3778    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 3779        self.center.reset_pane_sizes();
 3780        cx.notify();
 3781    }
 3782
 3783    fn handle_pane_focused(
 3784        &mut self,
 3785        pane: Entity<Pane>,
 3786        window: &mut Window,
 3787        cx: &mut Context<Self>,
 3788    ) {
 3789        // This is explicitly hoisted out of the following check for pane identity as
 3790        // terminal panel panes are not registered as a center panes.
 3791        self.status_bar.update(cx, |status_bar, cx| {
 3792            status_bar.set_active_pane(&pane, window, cx);
 3793        });
 3794        if self.active_pane != pane {
 3795            self.set_active_pane(&pane, window, cx);
 3796        }
 3797
 3798        if self.last_active_center_pane.is_none() {
 3799            self.last_active_center_pane = Some(pane.downgrade());
 3800        }
 3801
 3802        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 3803        if pane.read(cx).is_zoomed() {
 3804            self.zoomed = Some(pane.downgrade().into());
 3805        } else {
 3806            self.zoomed = None;
 3807        }
 3808        self.zoomed_position = None;
 3809        cx.emit(Event::ZoomChanged);
 3810        self.update_active_view_for_followers(window, cx);
 3811        pane.update(cx, |pane, _| {
 3812            pane.track_alternate_file_items();
 3813        });
 3814
 3815        cx.notify();
 3816    }
 3817
 3818    fn set_active_pane(
 3819        &mut self,
 3820        pane: &Entity<Pane>,
 3821        window: &mut Window,
 3822        cx: &mut Context<Self>,
 3823    ) {
 3824        self.active_pane = pane.clone();
 3825        self.active_item_path_changed(window, cx);
 3826        self.last_active_center_pane = Some(pane.downgrade());
 3827    }
 3828
 3829    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3830        self.update_active_view_for_followers(window, cx);
 3831    }
 3832
 3833    fn handle_pane_event(
 3834        &mut self,
 3835        pane: &Entity<Pane>,
 3836        event: &pane::Event,
 3837        window: &mut Window,
 3838        cx: &mut Context<Self>,
 3839    ) {
 3840        let mut serialize_workspace = true;
 3841        match event {
 3842            pane::Event::AddItem { item } => {
 3843                item.added_to_pane(self, pane.clone(), window, cx);
 3844                cx.emit(Event::ItemAdded {
 3845                    item: item.boxed_clone(),
 3846                });
 3847            }
 3848            pane::Event::Split(direction) => {
 3849                self.split_and_clone(pane.clone(), *direction, window, cx);
 3850            }
 3851            pane::Event::JoinIntoNext => {
 3852                self.join_pane_into_next(pane.clone(), window, cx);
 3853            }
 3854            pane::Event::JoinAll => {
 3855                self.join_all_panes(window, cx);
 3856            }
 3857            pane::Event::Remove { focus_on_pane } => {
 3858                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 3859            }
 3860            pane::Event::ActivateItem {
 3861                local,
 3862                focus_changed,
 3863            } => {
 3864                cx.on_next_frame(window, |_, window, _| {
 3865                    window.invalidate_character_coordinates();
 3866                });
 3867
 3868                pane.update(cx, |pane, _| {
 3869                    pane.track_alternate_file_items();
 3870                });
 3871                if *local {
 3872                    self.unfollow_in_pane(&pane, window, cx);
 3873                }
 3874                serialize_workspace = *focus_changed || pane != self.active_pane();
 3875                if pane == self.active_pane() {
 3876                    self.active_item_path_changed(window, cx);
 3877                    self.update_active_view_for_followers(window, cx);
 3878                } else if *local {
 3879                    self.set_active_pane(&pane, window, cx);
 3880                }
 3881            }
 3882            pane::Event::UserSavedItem { item, save_intent } => {
 3883                cx.emit(Event::UserSavedItem {
 3884                    pane: pane.downgrade(),
 3885                    item: item.boxed_clone(),
 3886                    save_intent: *save_intent,
 3887                });
 3888                serialize_workspace = false;
 3889            }
 3890            pane::Event::ChangeItemTitle => {
 3891                if *pane == self.active_pane {
 3892                    self.active_item_path_changed(window, cx);
 3893                }
 3894                serialize_workspace = false;
 3895            }
 3896            pane::Event::RemoveItem { .. } => {}
 3897            pane::Event::RemovedItem { item } => {
 3898                cx.emit(Event::ActiveItemChanged);
 3899                self.update_window_edited(window, cx);
 3900                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id()) {
 3901                    if entry.get().entity_id() == pane.entity_id() {
 3902                        entry.remove();
 3903                    }
 3904                }
 3905            }
 3906            pane::Event::Focus => {
 3907                cx.on_next_frame(window, |_, window, _| {
 3908                    window.invalidate_character_coordinates();
 3909                });
 3910                self.handle_pane_focused(pane.clone(), window, cx);
 3911            }
 3912            pane::Event::ZoomIn => {
 3913                if *pane == self.active_pane {
 3914                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 3915                    if pane.read(cx).has_focus(window, cx) {
 3916                        self.zoomed = Some(pane.downgrade().into());
 3917                        self.zoomed_position = None;
 3918                        cx.emit(Event::ZoomChanged);
 3919                    }
 3920                    cx.notify();
 3921                }
 3922            }
 3923            pane::Event::ZoomOut => {
 3924                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3925                if self.zoomed_position.is_none() {
 3926                    self.zoomed = None;
 3927                    cx.emit(Event::ZoomChanged);
 3928                }
 3929                cx.notify();
 3930            }
 3931            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 3932        }
 3933
 3934        if serialize_workspace {
 3935            self.serialize_workspace(window, cx);
 3936        }
 3937    }
 3938
 3939    pub fn unfollow_in_pane(
 3940        &mut self,
 3941        pane: &Entity<Pane>,
 3942        window: &mut Window,
 3943        cx: &mut Context<Workspace>,
 3944    ) -> Option<CollaboratorId> {
 3945        let leader_id = self.leader_for_pane(pane)?;
 3946        self.unfollow(leader_id, window, cx);
 3947        Some(leader_id)
 3948    }
 3949
 3950    pub fn split_pane(
 3951        &mut self,
 3952        pane_to_split: Entity<Pane>,
 3953        split_direction: SplitDirection,
 3954        window: &mut Window,
 3955        cx: &mut Context<Self>,
 3956    ) -> Entity<Pane> {
 3957        let new_pane = self.add_pane(window, cx);
 3958        self.center
 3959            .split(&pane_to_split, &new_pane, split_direction)
 3960            .unwrap();
 3961        cx.notify();
 3962        new_pane
 3963    }
 3964
 3965    pub fn split_and_clone(
 3966        &mut self,
 3967        pane: Entity<Pane>,
 3968        direction: SplitDirection,
 3969        window: &mut Window,
 3970        cx: &mut Context<Self>,
 3971    ) -> Option<Entity<Pane>> {
 3972        let item = pane.read(cx).active_item()?;
 3973        let maybe_pane_handle =
 3974            if let Some(clone) = item.clone_on_split(self.database_id(), window, cx) {
 3975                let new_pane = self.add_pane(window, cx);
 3976                new_pane.update(cx, |pane, cx| {
 3977                    pane.add_item(clone, true, true, None, window, cx)
 3978                });
 3979                self.center.split(&pane, &new_pane, direction).unwrap();
 3980                Some(new_pane)
 3981            } else {
 3982                None
 3983            };
 3984        cx.notify();
 3985        maybe_pane_handle
 3986    }
 3987
 3988    pub fn split_pane_with_item(
 3989        &mut self,
 3990        pane_to_split: WeakEntity<Pane>,
 3991        split_direction: SplitDirection,
 3992        from: WeakEntity<Pane>,
 3993        item_id_to_move: EntityId,
 3994        window: &mut Window,
 3995        cx: &mut Context<Self>,
 3996    ) {
 3997        let Some(pane_to_split) = pane_to_split.upgrade() else {
 3998            return;
 3999        };
 4000        let Some(from) = from.upgrade() else {
 4001            return;
 4002        };
 4003
 4004        let new_pane = self.add_pane(window, cx);
 4005        move_item(&from, &new_pane, item_id_to_move, 0, true, window, cx);
 4006        self.center
 4007            .split(&pane_to_split, &new_pane, split_direction)
 4008            .unwrap();
 4009        cx.notify();
 4010    }
 4011
 4012    pub fn split_pane_with_project_entry(
 4013        &mut self,
 4014        pane_to_split: WeakEntity<Pane>,
 4015        split_direction: SplitDirection,
 4016        project_entry: ProjectEntryId,
 4017        window: &mut Window,
 4018        cx: &mut Context<Self>,
 4019    ) -> Option<Task<Result<()>>> {
 4020        let pane_to_split = pane_to_split.upgrade()?;
 4021        let new_pane = self.add_pane(window, cx);
 4022        self.center
 4023            .split(&pane_to_split, &new_pane, split_direction)
 4024            .unwrap();
 4025
 4026        let path = self.project.read(cx).path_for_entry(project_entry, cx)?;
 4027        let task = self.open_path(path, Some(new_pane.downgrade()), true, window, cx);
 4028        Some(cx.foreground_executor().spawn(async move {
 4029            task.await?;
 4030            Ok(())
 4031        }))
 4032    }
 4033
 4034    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4035        let active_item = self.active_pane.read(cx).active_item();
 4036        for pane in &self.panes {
 4037            join_pane_into_active(&self.active_pane, pane, window, cx);
 4038        }
 4039        if let Some(active_item) = active_item {
 4040            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4041        }
 4042        cx.notify();
 4043    }
 4044
 4045    pub fn join_pane_into_next(
 4046        &mut self,
 4047        pane: Entity<Pane>,
 4048        window: &mut Window,
 4049        cx: &mut Context<Self>,
 4050    ) {
 4051        let next_pane = self
 4052            .find_pane_in_direction(SplitDirection::Right, cx)
 4053            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4054            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4055            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4056        let Some(next_pane) = next_pane else {
 4057            return;
 4058        };
 4059        move_all_items(&pane, &next_pane, window, cx);
 4060        cx.notify();
 4061    }
 4062
 4063    fn remove_pane(
 4064        &mut self,
 4065        pane: Entity<Pane>,
 4066        focus_on: Option<Entity<Pane>>,
 4067        window: &mut Window,
 4068        cx: &mut Context<Self>,
 4069    ) {
 4070        if self.center.remove(&pane).unwrap() {
 4071            self.force_remove_pane(&pane, &focus_on, window, cx);
 4072            self.unfollow_in_pane(&pane, window, cx);
 4073            self.last_leaders_by_pane.remove(&pane.downgrade());
 4074            for removed_item in pane.read(cx).items() {
 4075                self.panes_by_item.remove(&removed_item.item_id());
 4076            }
 4077
 4078            cx.notify();
 4079        } else {
 4080            self.active_item_path_changed(window, cx);
 4081        }
 4082        cx.emit(Event::PaneRemoved);
 4083    }
 4084
 4085    pub fn panes(&self) -> &[Entity<Pane>] {
 4086        &self.panes
 4087    }
 4088
 4089    pub fn active_pane(&self) -> &Entity<Pane> {
 4090        &self.active_pane
 4091    }
 4092
 4093    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4094        for dock in self.all_docks() {
 4095            if dock.focus_handle(cx).contains_focused(window, cx) {
 4096                if let Some(pane) = dock
 4097                    .read(cx)
 4098                    .active_panel()
 4099                    .and_then(|panel| panel.pane(cx))
 4100                {
 4101                    return pane;
 4102                }
 4103            }
 4104        }
 4105        self.active_pane().clone()
 4106    }
 4107
 4108    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4109        self.find_pane_in_direction(SplitDirection::Right, cx)
 4110            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4111            .unwrap_or_else(|| {
 4112                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4113            })
 4114            .clone()
 4115    }
 4116
 4117    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4118        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4119        weak_pane.upgrade()
 4120    }
 4121
 4122    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4123        self.follower_states.retain(|leader_id, state| {
 4124            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4125                for item in state.items_by_leader_view_id.values() {
 4126                    item.view.set_leader_id(None, window, cx);
 4127                }
 4128                false
 4129            } else {
 4130                true
 4131            }
 4132        });
 4133        cx.notify();
 4134    }
 4135
 4136    pub fn start_following(
 4137        &mut self,
 4138        leader_id: impl Into<CollaboratorId>,
 4139        window: &mut Window,
 4140        cx: &mut Context<Self>,
 4141    ) -> Option<Task<Result<()>>> {
 4142        let leader_id = leader_id.into();
 4143        let pane = self.active_pane().clone();
 4144
 4145        self.last_leaders_by_pane
 4146            .insert(pane.downgrade(), leader_id);
 4147        self.unfollow(leader_id, window, cx);
 4148        self.unfollow_in_pane(&pane, window, cx);
 4149        self.follower_states.insert(
 4150            leader_id,
 4151            FollowerState {
 4152                center_pane: pane.clone(),
 4153                dock_pane: None,
 4154                active_view_id: None,
 4155                items_by_leader_view_id: Default::default(),
 4156            },
 4157        );
 4158        cx.notify();
 4159
 4160        match leader_id {
 4161            CollaboratorId::PeerId(leader_peer_id) => {
 4162                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4163                let project_id = self.project.read(cx).remote_id();
 4164                let request = self.app_state.client.request(proto::Follow {
 4165                    room_id,
 4166                    project_id,
 4167                    leader_id: Some(leader_peer_id),
 4168                });
 4169
 4170                Some(cx.spawn_in(window, async move |this, cx| {
 4171                    let response = request.await?;
 4172                    this.update(cx, |this, _| {
 4173                        let state = this
 4174                            .follower_states
 4175                            .get_mut(&leader_id)
 4176                            .context("following interrupted")?;
 4177                        state.active_view_id = response
 4178                            .active_view
 4179                            .as_ref()
 4180                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4181                        anyhow::Ok(())
 4182                    })??;
 4183                    if let Some(view) = response.active_view {
 4184                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4185                    }
 4186                    this.update_in(cx, |this, window, cx| {
 4187                        this.leader_updated(leader_id, window, cx)
 4188                    })?;
 4189                    Ok(())
 4190                }))
 4191            }
 4192            CollaboratorId::Agent => {
 4193                self.leader_updated(leader_id, window, cx)?;
 4194                Some(Task::ready(Ok(())))
 4195            }
 4196        }
 4197    }
 4198
 4199    pub fn follow_next_collaborator(
 4200        &mut self,
 4201        _: &FollowNextCollaborator,
 4202        window: &mut Window,
 4203        cx: &mut Context<Self>,
 4204    ) {
 4205        let collaborators = self.project.read(cx).collaborators();
 4206        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4207            let mut collaborators = collaborators.keys().copied();
 4208            for peer_id in collaborators.by_ref() {
 4209                if CollaboratorId::PeerId(peer_id) == leader_id {
 4210                    break;
 4211                }
 4212            }
 4213            collaborators.next().map(CollaboratorId::PeerId)
 4214        } else if let Some(last_leader_id) =
 4215            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4216        {
 4217            match last_leader_id {
 4218                CollaboratorId::PeerId(peer_id) => {
 4219                    if collaborators.contains_key(peer_id) {
 4220                        Some(*last_leader_id)
 4221                    } else {
 4222                        None
 4223                    }
 4224                }
 4225                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4226            }
 4227        } else {
 4228            None
 4229        };
 4230
 4231        let pane = self.active_pane.clone();
 4232        let Some(leader_id) = next_leader_id.or_else(|| {
 4233            Some(CollaboratorId::PeerId(
 4234                collaborators.keys().copied().next()?,
 4235            ))
 4236        }) else {
 4237            return;
 4238        };
 4239        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4240            return;
 4241        }
 4242        if let Some(task) = self.start_following(leader_id, window, cx) {
 4243            task.detach_and_log_err(cx)
 4244        }
 4245    }
 4246
 4247    pub fn follow(
 4248        &mut self,
 4249        leader_id: impl Into<CollaboratorId>,
 4250        window: &mut Window,
 4251        cx: &mut Context<Self>,
 4252    ) {
 4253        let leader_id = leader_id.into();
 4254
 4255        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4256            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4257                return;
 4258            };
 4259            let room = room.read(cx);
 4260            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4261                return;
 4262            };
 4263
 4264            let project = self.project.read(cx);
 4265
 4266            let other_project_id = match remote_participant.location {
 4267                call::ParticipantLocation::External => None,
 4268                call::ParticipantLocation::UnsharedProject => None,
 4269                call::ParticipantLocation::SharedProject { project_id } => {
 4270                    if Some(project_id) == project.remote_id() {
 4271                        None
 4272                    } else {
 4273                        Some(project_id)
 4274                    }
 4275                }
 4276            };
 4277
 4278            // if they are active in another project, follow there.
 4279            if let Some(project_id) = other_project_id {
 4280                let app_state = self.app_state.clone();
 4281                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4282                    .detach_and_log_err(cx);
 4283            }
 4284        }
 4285
 4286        // if you're already following, find the right pane and focus it.
 4287        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4288            window.focus(&follower_state.pane().focus_handle(cx));
 4289
 4290            return;
 4291        }
 4292
 4293        // Otherwise, follow.
 4294        if let Some(task) = self.start_following(leader_id, window, cx) {
 4295            task.detach_and_log_err(cx)
 4296        }
 4297    }
 4298
 4299    pub fn unfollow(
 4300        &mut self,
 4301        leader_id: impl Into<CollaboratorId>,
 4302        window: &mut Window,
 4303        cx: &mut Context<Self>,
 4304    ) -> Option<()> {
 4305        cx.notify();
 4306
 4307        let leader_id = leader_id.into();
 4308        let state = self.follower_states.remove(&leader_id)?;
 4309        for (_, item) in state.items_by_leader_view_id {
 4310            item.view.set_leader_id(None, window, cx);
 4311        }
 4312
 4313        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4314            let project_id = self.project.read(cx).remote_id();
 4315            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4316            self.app_state
 4317                .client
 4318                .send(proto::Unfollow {
 4319                    room_id,
 4320                    project_id,
 4321                    leader_id: Some(leader_peer_id),
 4322                })
 4323                .log_err();
 4324        }
 4325
 4326        Some(())
 4327    }
 4328
 4329    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4330        self.follower_states.contains_key(&id.into())
 4331    }
 4332
 4333    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4334        cx.emit(Event::ActiveItemChanged);
 4335        let active_entry = self.active_project_path(cx);
 4336        self.project
 4337            .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 4338
 4339        self.update_window_title(window, cx);
 4340    }
 4341
 4342    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4343        let project = self.project().read(cx);
 4344        let mut title = String::new();
 4345
 4346        for (i, name) in project.worktree_root_names(cx).enumerate() {
 4347            if i > 0 {
 4348                title.push_str(", ");
 4349            }
 4350            title.push_str(name);
 4351        }
 4352
 4353        if title.is_empty() {
 4354            title = "empty project".to_string();
 4355        }
 4356
 4357        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4358            let filename = path
 4359                .path
 4360                .file_name()
 4361                .map(|s| s.to_string_lossy())
 4362                .or_else(|| {
 4363                    Some(Cow::Borrowed(
 4364                        project
 4365                            .worktree_for_id(path.worktree_id, cx)?
 4366                            .read(cx)
 4367                            .root_name(),
 4368                    ))
 4369                });
 4370
 4371            if let Some(filename) = filename {
 4372                title.push_str("");
 4373                title.push_str(filename.as_ref());
 4374            }
 4375        }
 4376
 4377        if project.is_via_collab() {
 4378            title.push_str("");
 4379        } else if project.is_shared() {
 4380            title.push_str("");
 4381        }
 4382
 4383        window.set_window_title(&title);
 4384    }
 4385
 4386    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4387        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4388        if is_edited != self.window_edited {
 4389            self.window_edited = is_edited;
 4390            window.set_window_edited(self.window_edited)
 4391        }
 4392    }
 4393
 4394    fn update_item_dirty_state(
 4395        &mut self,
 4396        item: &dyn ItemHandle,
 4397        window: &mut Window,
 4398        cx: &mut App,
 4399    ) {
 4400        let is_dirty = item.is_dirty(cx);
 4401        let item_id = item.item_id();
 4402        let was_dirty = self.dirty_items.contains_key(&item_id);
 4403        if is_dirty == was_dirty {
 4404            return;
 4405        }
 4406        if was_dirty {
 4407            self.dirty_items.remove(&item_id);
 4408            self.update_window_edited(window, cx);
 4409            return;
 4410        }
 4411        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4412            let s = item.on_release(
 4413                cx,
 4414                Box::new(move |cx| {
 4415                    window_handle
 4416                        .update(cx, |this, window, cx| {
 4417                            this.dirty_items.remove(&item_id);
 4418                            this.update_window_edited(window, cx)
 4419                        })
 4420                        .ok();
 4421                }),
 4422            );
 4423            self.dirty_items.insert(item_id, s);
 4424            self.update_window_edited(window, cx);
 4425        }
 4426    }
 4427
 4428    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4429        if self.notifications.is_empty() {
 4430            None
 4431        } else {
 4432            Some(
 4433                div()
 4434                    .absolute()
 4435                    .right_3()
 4436                    .bottom_3()
 4437                    .w_112()
 4438                    .h_full()
 4439                    .flex()
 4440                    .flex_col()
 4441                    .justify_end()
 4442                    .gap_2()
 4443                    .children(
 4444                        self.notifications
 4445                            .iter()
 4446                            .map(|(_, notification)| notification.clone().into_any()),
 4447                    ),
 4448            )
 4449        }
 4450    }
 4451
 4452    // RPC handlers
 4453
 4454    fn active_view_for_follower(
 4455        &self,
 4456        follower_project_id: Option<u64>,
 4457        window: &mut Window,
 4458        cx: &mut Context<Self>,
 4459    ) -> Option<proto::View> {
 4460        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4461        let item = item?;
 4462        let leader_id = self
 4463            .pane_for(&*item)
 4464            .and_then(|pane| self.leader_for_pane(&pane));
 4465        let leader_peer_id = match leader_id {
 4466            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4467            Some(CollaboratorId::Agent) | None => None,
 4468        };
 4469
 4470        let item_handle = item.to_followable_item_handle(cx)?;
 4471        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4472        let variant = item_handle.to_state_proto(window, cx)?;
 4473
 4474        if item_handle.is_project_item(window, cx)
 4475            && (follower_project_id.is_none()
 4476                || follower_project_id != self.project.read(cx).remote_id())
 4477        {
 4478            return None;
 4479        }
 4480
 4481        Some(proto::View {
 4482            id: id.to_proto(),
 4483            leader_id: leader_peer_id,
 4484            variant: Some(variant),
 4485            panel_id: panel_id.map(|id| id as i32),
 4486        })
 4487    }
 4488
 4489    fn handle_follow(
 4490        &mut self,
 4491        follower_project_id: Option<u64>,
 4492        window: &mut Window,
 4493        cx: &mut Context<Self>,
 4494    ) -> proto::FollowResponse {
 4495        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4496
 4497        cx.notify();
 4498        proto::FollowResponse {
 4499            // TODO: Remove after version 0.145.x stabilizes.
 4500            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4501            views: active_view.iter().cloned().collect(),
 4502            active_view,
 4503        }
 4504    }
 4505
 4506    fn handle_update_followers(
 4507        &mut self,
 4508        leader_id: PeerId,
 4509        message: proto::UpdateFollowers,
 4510        _window: &mut Window,
 4511        _cx: &mut Context<Self>,
 4512    ) {
 4513        self.leader_updates_tx
 4514            .unbounded_send((leader_id, message))
 4515            .ok();
 4516    }
 4517
 4518    async fn process_leader_update(
 4519        this: &WeakEntity<Self>,
 4520        leader_id: PeerId,
 4521        update: proto::UpdateFollowers,
 4522        cx: &mut AsyncWindowContext,
 4523    ) -> Result<()> {
 4524        match update.variant.context("invalid update")? {
 4525            proto::update_followers::Variant::CreateView(view) => {
 4526                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4527                let should_add_view = this.update(cx, |this, _| {
 4528                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4529                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4530                    } else {
 4531                        anyhow::Ok(false)
 4532                    }
 4533                })??;
 4534
 4535                if should_add_view {
 4536                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4537                }
 4538            }
 4539            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4540                let should_add_view = this.update(cx, |this, _| {
 4541                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4542                        state.active_view_id = update_active_view
 4543                            .view
 4544                            .as_ref()
 4545                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4546
 4547                        if state.active_view_id.is_some_and(|view_id| {
 4548                            !state.items_by_leader_view_id.contains_key(&view_id)
 4549                        }) {
 4550                            anyhow::Ok(true)
 4551                        } else {
 4552                            anyhow::Ok(false)
 4553                        }
 4554                    } else {
 4555                        anyhow::Ok(false)
 4556                    }
 4557                })??;
 4558
 4559                if should_add_view {
 4560                    if let Some(view) = update_active_view.view {
 4561                        Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4562                    }
 4563                }
 4564            }
 4565            proto::update_followers::Variant::UpdateView(update_view) => {
 4566                let variant = update_view.variant.context("missing update view variant")?;
 4567                let id = update_view.id.context("missing update view id")?;
 4568                let mut tasks = Vec::new();
 4569                this.update_in(cx, |this, window, cx| {
 4570                    let project = this.project.clone();
 4571                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4572                        let view_id = ViewId::from_proto(id.clone())?;
 4573                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4574                            tasks.push(item.view.apply_update_proto(
 4575                                &project,
 4576                                variant.clone(),
 4577                                window,
 4578                                cx,
 4579                            ));
 4580                        }
 4581                    }
 4582                    anyhow::Ok(())
 4583                })??;
 4584                try_join_all(tasks).await.log_err();
 4585            }
 4586        }
 4587        this.update_in(cx, |this, window, cx| {
 4588            this.leader_updated(leader_id, window, cx)
 4589        })?;
 4590        Ok(())
 4591    }
 4592
 4593    async fn add_view_from_leader(
 4594        this: WeakEntity<Self>,
 4595        leader_id: PeerId,
 4596        view: &proto::View,
 4597        cx: &mut AsyncWindowContext,
 4598    ) -> Result<()> {
 4599        let this = this.upgrade().context("workspace dropped")?;
 4600
 4601        let Some(id) = view.id.clone() else {
 4602            anyhow::bail!("no id for view");
 4603        };
 4604        let id = ViewId::from_proto(id)?;
 4605        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4606
 4607        let pane = this.update(cx, |this, _cx| {
 4608            let state = this
 4609                .follower_states
 4610                .get(&leader_id.into())
 4611                .context("stopped following")?;
 4612            anyhow::Ok(state.pane().clone())
 4613        })??;
 4614        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4615            let client = this.read(cx).client().clone();
 4616            pane.items().find_map(|item| {
 4617                let item = item.to_followable_item_handle(cx)?;
 4618                if item.remote_id(&client, window, cx) == Some(id) {
 4619                    Some(item)
 4620                } else {
 4621                    None
 4622                }
 4623            })
 4624        })?;
 4625        let item = if let Some(existing_item) = existing_item {
 4626            existing_item
 4627        } else {
 4628            let variant = view.variant.clone();
 4629            anyhow::ensure!(variant.is_some(), "missing view variant");
 4630
 4631            let task = cx.update(|window, cx| {
 4632                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4633            })?;
 4634
 4635            let Some(task) = task else {
 4636                anyhow::bail!(
 4637                    "failed to construct view from leader (maybe from a different version of zed?)"
 4638                );
 4639            };
 4640
 4641            let mut new_item = task.await?;
 4642            pane.update_in(cx, |pane, window, cx| {
 4643                let mut item_to_remove = None;
 4644                for (ix, item) in pane.items().enumerate() {
 4645                    if let Some(item) = item.to_followable_item_handle(cx) {
 4646                        match new_item.dedup(item.as_ref(), window, cx) {
 4647                            Some(item::Dedup::KeepExisting) => {
 4648                                new_item =
 4649                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4650                                break;
 4651                            }
 4652                            Some(item::Dedup::ReplaceExisting) => {
 4653                                item_to_remove = Some((ix, item.item_id()));
 4654                                break;
 4655                            }
 4656                            None => {}
 4657                        }
 4658                    }
 4659                }
 4660
 4661                if let Some((ix, id)) = item_to_remove {
 4662                    pane.remove_item(id, false, false, window, cx);
 4663                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4664                }
 4665            })?;
 4666
 4667            new_item
 4668        };
 4669
 4670        this.update_in(cx, |this, window, cx| {
 4671            let state = this.follower_states.get_mut(&leader_id.into())?;
 4672            item.set_leader_id(Some(leader_id.into()), window, cx);
 4673            state.items_by_leader_view_id.insert(
 4674                id,
 4675                FollowerView {
 4676                    view: item,
 4677                    location: panel_id,
 4678                },
 4679            );
 4680
 4681            Some(())
 4682        })?;
 4683
 4684        Ok(())
 4685    }
 4686
 4687    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4688        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4689            return;
 4690        };
 4691
 4692        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4693            let buffer_entity_id = agent_location.buffer.entity_id();
 4694            let view_id = ViewId {
 4695                creator: CollaboratorId::Agent,
 4696                id: buffer_entity_id.as_u64(),
 4697            };
 4698            follower_state.active_view_id = Some(view_id);
 4699
 4700            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4701                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4702                hash_map::Entry::Vacant(entry) => {
 4703                    let existing_view =
 4704                        follower_state
 4705                            .center_pane
 4706                            .read(cx)
 4707                            .items()
 4708                            .find_map(|item| {
 4709                                let item = item.to_followable_item_handle(cx)?;
 4710                                if item.is_singleton(cx)
 4711                                    && item.project_item_model_ids(cx).as_slice()
 4712                                        == [buffer_entity_id]
 4713                                {
 4714                                    Some(item)
 4715                                } else {
 4716                                    None
 4717                                }
 4718                            });
 4719                    let view = existing_view.or_else(|| {
 4720                        agent_location.buffer.upgrade().and_then(|buffer| {
 4721                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4722                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4723                            })?
 4724                            .to_followable_item_handle(cx)
 4725                        })
 4726                    });
 4727
 4728                    if let Some(view) = view {
 4729                        Some(entry.insert(FollowerView {
 4730                            view,
 4731                            location: None,
 4732                        }))
 4733                    } else {
 4734                        None
 4735                    }
 4736                }
 4737            };
 4738
 4739            if let Some(item) = item {
 4740                item.view
 4741                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4742                item.view
 4743                    .update_agent_location(agent_location.position, window, cx);
 4744            }
 4745        } else {
 4746            follower_state.active_view_id = None;
 4747        }
 4748
 4749        self.leader_updated(CollaboratorId::Agent, window, cx);
 4750    }
 4751
 4752    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4753        let mut is_project_item = true;
 4754        let mut update = proto::UpdateActiveView::default();
 4755        if window.is_window_active() {
 4756            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4757
 4758            if let Some(item) = active_item {
 4759                if item.item_focus_handle(cx).contains_focused(window, cx) {
 4760                    let leader_id = self
 4761                        .pane_for(&*item)
 4762                        .and_then(|pane| self.leader_for_pane(&pane));
 4763                    let leader_peer_id = match leader_id {
 4764                        Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4765                        Some(CollaboratorId::Agent) | None => None,
 4766                    };
 4767
 4768                    if let Some(item) = item.to_followable_item_handle(cx) {
 4769                        let id = item
 4770                            .remote_id(&self.app_state.client, window, cx)
 4771                            .map(|id| id.to_proto());
 4772
 4773                        if let Some(id) = id.clone() {
 4774                            if let Some(variant) = item.to_state_proto(window, cx) {
 4775                                let view = Some(proto::View {
 4776                                    id: id.clone(),
 4777                                    leader_id: leader_peer_id,
 4778                                    variant: Some(variant),
 4779                                    panel_id: panel_id.map(|id| id as i32),
 4780                                });
 4781
 4782                                is_project_item = item.is_project_item(window, cx);
 4783                                update = proto::UpdateActiveView {
 4784                                    view,
 4785                                    // TODO: Remove after version 0.145.x stabilizes.
 4786                                    id: id.clone(),
 4787                                    leader_id: leader_peer_id,
 4788                                };
 4789                            }
 4790                        };
 4791                    }
 4792                }
 4793            }
 4794        }
 4795
 4796        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 4797        if active_view_id != self.last_active_view_id.as_ref() {
 4798            self.last_active_view_id = active_view_id.cloned();
 4799            self.update_followers(
 4800                is_project_item,
 4801                proto::update_followers::Variant::UpdateActiveView(update),
 4802                window,
 4803                cx,
 4804            );
 4805        }
 4806    }
 4807
 4808    fn active_item_for_followers(
 4809        &self,
 4810        window: &mut Window,
 4811        cx: &mut App,
 4812    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 4813        let mut active_item = None;
 4814        let mut panel_id = None;
 4815        for dock in self.all_docks() {
 4816            if dock.focus_handle(cx).contains_focused(window, cx) {
 4817                if let Some(panel) = dock.read(cx).active_panel() {
 4818                    if let Some(pane) = panel.pane(cx) {
 4819                        if let Some(item) = pane.read(cx).active_item() {
 4820                            active_item = Some(item);
 4821                            panel_id = panel.remote_id();
 4822                            break;
 4823                        }
 4824                    }
 4825                }
 4826            }
 4827        }
 4828
 4829        if active_item.is_none() {
 4830            active_item = self.active_pane().read(cx).active_item();
 4831        }
 4832        (active_item, panel_id)
 4833    }
 4834
 4835    fn update_followers(
 4836        &self,
 4837        project_only: bool,
 4838        update: proto::update_followers::Variant,
 4839        _: &mut Window,
 4840        cx: &mut App,
 4841    ) -> Option<()> {
 4842        // If this update only applies to for followers in the current project,
 4843        // then skip it unless this project is shared. If it applies to all
 4844        // followers, regardless of project, then set `project_id` to none,
 4845        // indicating that it goes to all followers.
 4846        let project_id = if project_only {
 4847            Some(self.project.read(cx).remote_id()?)
 4848        } else {
 4849            None
 4850        };
 4851        self.app_state().workspace_store.update(cx, |store, cx| {
 4852            store.update_followers(project_id, update, cx)
 4853        })
 4854    }
 4855
 4856    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 4857        self.follower_states.iter().find_map(|(leader_id, state)| {
 4858            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 4859                Some(*leader_id)
 4860            } else {
 4861                None
 4862            }
 4863        })
 4864    }
 4865
 4866    fn leader_updated(
 4867        &mut self,
 4868        leader_id: impl Into<CollaboratorId>,
 4869        window: &mut Window,
 4870        cx: &mut Context<Self>,
 4871    ) -> Option<Box<dyn ItemHandle>> {
 4872        cx.notify();
 4873
 4874        let leader_id = leader_id.into();
 4875        let (panel_id, item) = match leader_id {
 4876            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 4877            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 4878        };
 4879
 4880        let state = self.follower_states.get(&leader_id)?;
 4881        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 4882        let pane;
 4883        if let Some(panel_id) = panel_id {
 4884            pane = self
 4885                .activate_panel_for_proto_id(panel_id, window, cx)?
 4886                .pane(cx)?;
 4887            let state = self.follower_states.get_mut(&leader_id)?;
 4888            state.dock_pane = Some(pane.clone());
 4889        } else {
 4890            pane = state.center_pane.clone();
 4891            let state = self.follower_states.get_mut(&leader_id)?;
 4892            if let Some(dock_pane) = state.dock_pane.take() {
 4893                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 4894            }
 4895        }
 4896
 4897        pane.update(cx, |pane, cx| {
 4898            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 4899            if let Some(index) = pane.index_for_item(item.as_ref()) {
 4900                pane.activate_item(index, false, false, window, cx);
 4901            } else {
 4902                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 4903            }
 4904
 4905            if focus_active_item {
 4906                pane.focus_active_item(window, cx)
 4907            }
 4908        });
 4909
 4910        Some(item)
 4911    }
 4912
 4913    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 4914        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 4915        let active_view_id = state.active_view_id?;
 4916        Some(
 4917            state
 4918                .items_by_leader_view_id
 4919                .get(&active_view_id)?
 4920                .view
 4921                .boxed_clone(),
 4922        )
 4923    }
 4924
 4925    fn active_item_for_peer(
 4926        &self,
 4927        peer_id: PeerId,
 4928        window: &mut Window,
 4929        cx: &mut Context<Self>,
 4930    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 4931        let call = self.active_call()?;
 4932        let room = call.read(cx).room()?.read(cx);
 4933        let participant = room.remote_participant_for_peer_id(peer_id)?;
 4934        let leader_in_this_app;
 4935        let leader_in_this_project;
 4936        match participant.location {
 4937            call::ParticipantLocation::SharedProject { project_id } => {
 4938                leader_in_this_app = true;
 4939                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 4940            }
 4941            call::ParticipantLocation::UnsharedProject => {
 4942                leader_in_this_app = true;
 4943                leader_in_this_project = false;
 4944            }
 4945            call::ParticipantLocation::External => {
 4946                leader_in_this_app = false;
 4947                leader_in_this_project = false;
 4948            }
 4949        };
 4950        let state = self.follower_states.get(&peer_id.into())?;
 4951        let mut item_to_activate = None;
 4952        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 4953            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id) {
 4954                if leader_in_this_project || !item.view.is_project_item(window, cx) {
 4955                    item_to_activate = Some((item.location, item.view.boxed_clone()));
 4956                }
 4957            }
 4958        } else if let Some(shared_screen) =
 4959            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 4960        {
 4961            item_to_activate = Some((None, Box::new(shared_screen)));
 4962        }
 4963        item_to_activate
 4964    }
 4965
 4966    fn shared_screen_for_peer(
 4967        &self,
 4968        peer_id: PeerId,
 4969        pane: &Entity<Pane>,
 4970        window: &mut Window,
 4971        cx: &mut App,
 4972    ) -> Option<Entity<SharedScreen>> {
 4973        let call = self.active_call()?;
 4974        let room = call.read(cx).room()?.clone();
 4975        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 4976        let track = participant.video_tracks.values().next()?.clone();
 4977        let user = participant.user.clone();
 4978
 4979        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 4980            if item.read(cx).peer_id == peer_id {
 4981                return Some(item);
 4982            }
 4983        }
 4984
 4985        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 4986    }
 4987
 4988    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4989        if window.is_window_active() {
 4990            self.update_active_view_for_followers(window, cx);
 4991
 4992            if let Some(database_id) = self.database_id {
 4993                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 4994                    .detach();
 4995            }
 4996        } else {
 4997            for pane in &self.panes {
 4998                pane.update(cx, |pane, cx| {
 4999                    if let Some(item) = pane.active_item() {
 5000                        item.workspace_deactivated(window, cx);
 5001                    }
 5002                    for item in pane.items() {
 5003                        if matches!(
 5004                            item.workspace_settings(cx).autosave,
 5005                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5006                        ) {
 5007                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5008                                .detach_and_log_err(cx);
 5009                        }
 5010                    }
 5011                });
 5012            }
 5013        }
 5014    }
 5015
 5016    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5017        self.active_call.as_ref().map(|(call, _)| call)
 5018    }
 5019
 5020    fn on_active_call_event(
 5021        &mut self,
 5022        _: &Entity<ActiveCall>,
 5023        event: &call::room::Event,
 5024        window: &mut Window,
 5025        cx: &mut Context<Self>,
 5026    ) {
 5027        match event {
 5028            call::room::Event::ParticipantLocationChanged { participant_id }
 5029            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5030                self.leader_updated(participant_id, window, cx);
 5031            }
 5032            _ => {}
 5033        }
 5034    }
 5035
 5036    pub fn database_id(&self) -> Option<WorkspaceId> {
 5037        self.database_id
 5038    }
 5039
 5040    pub fn session_id(&self) -> Option<String> {
 5041        self.session_id.clone()
 5042    }
 5043
 5044    fn local_paths(&self, cx: &App) -> Option<Vec<Arc<Path>>> {
 5045        let project = self.project().read(cx);
 5046
 5047        if project.is_local() {
 5048            Some(
 5049                project
 5050                    .visible_worktrees(cx)
 5051                    .map(|worktree| worktree.read(cx).abs_path())
 5052                    .collect::<Vec<_>>(),
 5053            )
 5054        } else {
 5055            None
 5056        }
 5057    }
 5058
 5059    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5060        match member {
 5061            Member::Axis(PaneAxis { members, .. }) => {
 5062                for child in members.iter() {
 5063                    self.remove_panes(child.clone(), window, cx)
 5064                }
 5065            }
 5066            Member::Pane(pane) => {
 5067                self.force_remove_pane(&pane, &None, window, cx);
 5068            }
 5069        }
 5070    }
 5071
 5072    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5073        self.session_id.take();
 5074        self.serialize_workspace_internal(window, cx)
 5075    }
 5076
 5077    fn force_remove_pane(
 5078        &mut self,
 5079        pane: &Entity<Pane>,
 5080        focus_on: &Option<Entity<Pane>>,
 5081        window: &mut Window,
 5082        cx: &mut Context<Workspace>,
 5083    ) {
 5084        self.panes.retain(|p| p != pane);
 5085        if let Some(focus_on) = focus_on {
 5086            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5087        } else {
 5088            if self.active_pane() == pane {
 5089                self.panes
 5090                    .last()
 5091                    .unwrap()
 5092                    .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5093            }
 5094        }
 5095        if self.last_active_center_pane == Some(pane.downgrade()) {
 5096            self.last_active_center_pane = None;
 5097        }
 5098        cx.notify();
 5099    }
 5100
 5101    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5102        if self._schedule_serialize.is_none() {
 5103            self._schedule_serialize = Some(cx.spawn_in(window, async move |this, cx| {
 5104                cx.background_executor()
 5105                    .timer(Duration::from_millis(100))
 5106                    .await;
 5107                this.update_in(cx, |this, window, cx| {
 5108                    this.serialize_workspace_internal(window, cx).detach();
 5109                    this._schedule_serialize.take();
 5110                })
 5111                .log_err();
 5112            }));
 5113        }
 5114    }
 5115
 5116    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5117        let Some(database_id) = self.database_id() else {
 5118            return Task::ready(());
 5119        };
 5120
 5121        fn serialize_pane_handle(
 5122            pane_handle: &Entity<Pane>,
 5123            window: &mut Window,
 5124            cx: &mut App,
 5125        ) -> SerializedPane {
 5126            let (items, active, pinned_count) = {
 5127                let pane = pane_handle.read(cx);
 5128                let active_item_id = pane.active_item().map(|item| item.item_id());
 5129                (
 5130                    pane.items()
 5131                        .filter_map(|handle| {
 5132                            let handle = handle.to_serializable_item_handle(cx)?;
 5133
 5134                            Some(SerializedItem {
 5135                                kind: Arc::from(handle.serialized_item_kind()),
 5136                                item_id: handle.item_id().as_u64(),
 5137                                active: Some(handle.item_id()) == active_item_id,
 5138                                preview: pane.is_active_preview_item(handle.item_id()),
 5139                            })
 5140                        })
 5141                        .collect::<Vec<_>>(),
 5142                    pane.has_focus(window, cx),
 5143                    pane.pinned_count(),
 5144                )
 5145            };
 5146
 5147            SerializedPane::new(items, active, pinned_count)
 5148        }
 5149
 5150        fn build_serialized_pane_group(
 5151            pane_group: &Member,
 5152            window: &mut Window,
 5153            cx: &mut App,
 5154        ) -> SerializedPaneGroup {
 5155            match pane_group {
 5156                Member::Axis(PaneAxis {
 5157                    axis,
 5158                    members,
 5159                    flexes,
 5160                    bounding_boxes: _,
 5161                }) => SerializedPaneGroup::Group {
 5162                    axis: SerializedAxis(*axis),
 5163                    children: members
 5164                        .iter()
 5165                        .map(|member| build_serialized_pane_group(member, window, cx))
 5166                        .collect::<Vec<_>>(),
 5167                    flexes: Some(flexes.lock().clone()),
 5168                },
 5169                Member::Pane(pane_handle) => {
 5170                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5171                }
 5172            }
 5173        }
 5174
 5175        fn build_serialized_docks(
 5176            this: &Workspace,
 5177            window: &mut Window,
 5178            cx: &mut App,
 5179        ) -> DockStructure {
 5180            let left_dock = this.left_dock.read(cx);
 5181            let left_visible = left_dock.is_open();
 5182            let left_active_panel = left_dock
 5183                .active_panel()
 5184                .map(|panel| panel.persistent_name().to_string());
 5185            let left_dock_zoom = left_dock
 5186                .active_panel()
 5187                .map(|panel| panel.is_zoomed(window, cx))
 5188                .unwrap_or(false);
 5189
 5190            let right_dock = this.right_dock.read(cx);
 5191            let right_visible = right_dock.is_open();
 5192            let right_active_panel = right_dock
 5193                .active_panel()
 5194                .map(|panel| panel.persistent_name().to_string());
 5195            let right_dock_zoom = right_dock
 5196                .active_panel()
 5197                .map(|panel| panel.is_zoomed(window, cx))
 5198                .unwrap_or(false);
 5199
 5200            let bottom_dock = this.bottom_dock.read(cx);
 5201            let bottom_visible = bottom_dock.is_open();
 5202            let bottom_active_panel = bottom_dock
 5203                .active_panel()
 5204                .map(|panel| panel.persistent_name().to_string());
 5205            let bottom_dock_zoom = bottom_dock
 5206                .active_panel()
 5207                .map(|panel| panel.is_zoomed(window, cx))
 5208                .unwrap_or(false);
 5209
 5210            DockStructure {
 5211                left: DockData {
 5212                    visible: left_visible,
 5213                    active_panel: left_active_panel,
 5214                    zoom: left_dock_zoom,
 5215                },
 5216                right: DockData {
 5217                    visible: right_visible,
 5218                    active_panel: right_active_panel,
 5219                    zoom: right_dock_zoom,
 5220                },
 5221                bottom: DockData {
 5222                    visible: bottom_visible,
 5223                    active_panel: bottom_active_panel,
 5224                    zoom: bottom_dock_zoom,
 5225                },
 5226            }
 5227        }
 5228
 5229        match self.serialize_workspace_location(cx) {
 5230            WorkspaceLocation::Location(location) => {
 5231                let breakpoints = self.project.update(cx, |project, cx| {
 5232                    project
 5233                        .breakpoint_store()
 5234                        .read(cx)
 5235                        .all_source_breakpoints(cx)
 5236                });
 5237
 5238                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5239                let docks = build_serialized_docks(self, window, cx);
 5240                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5241                let serialized_workspace = SerializedWorkspace {
 5242                    id: database_id,
 5243                    location,
 5244                    center_group,
 5245                    window_bounds,
 5246                    display: Default::default(),
 5247                    docks,
 5248                    centered_layout: self.centered_layout,
 5249                    session_id: self.session_id.clone(),
 5250                    breakpoints,
 5251                    window_id: Some(window.window_handle().window_id().as_u64()),
 5252                };
 5253
 5254                window.spawn(cx, async move |_| {
 5255                    persistence::DB.save_workspace(serialized_workspace).await;
 5256                })
 5257            }
 5258            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5259                persistence::DB
 5260                    .set_session_id(database_id, None)
 5261                    .await
 5262                    .log_err();
 5263            }),
 5264            WorkspaceLocation::None => Task::ready(()),
 5265        }
 5266    }
 5267
 5268    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5269        if let Some(ssh_project) = &self.serialized_ssh_project {
 5270            WorkspaceLocation::Location(SerializedWorkspaceLocation::Ssh(ssh_project.clone()))
 5271        } else if let Some(local_paths) = self.local_paths(cx) {
 5272            if !local_paths.is_empty() {
 5273                WorkspaceLocation::Location(SerializedWorkspaceLocation::from_local_paths(
 5274                    local_paths,
 5275                ))
 5276            } else {
 5277                WorkspaceLocation::DetachFromSession
 5278            }
 5279        } else {
 5280            WorkspaceLocation::None
 5281        }
 5282    }
 5283
 5284    fn update_history(&self, cx: &mut App) {
 5285        let Some(id) = self.database_id() else {
 5286            return;
 5287        };
 5288        let location = match self.serialize_workspace_location(cx) {
 5289            WorkspaceLocation::Location(location) => location,
 5290            _ => return,
 5291        };
 5292        if let Some(manager) = HistoryManager::global(cx) {
 5293            manager.update(cx, |this, cx| {
 5294                this.update_history(id, HistoryManagerEntry::new(id, &location), cx);
 5295            });
 5296        }
 5297    }
 5298
 5299    async fn serialize_items(
 5300        this: &WeakEntity<Self>,
 5301        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5302        cx: &mut AsyncWindowContext,
 5303    ) -> Result<()> {
 5304        const CHUNK_SIZE: usize = 200;
 5305
 5306        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5307
 5308        while let Some(items_received) = serializable_items.next().await {
 5309            let unique_items =
 5310                items_received
 5311                    .into_iter()
 5312                    .fold(HashMap::default(), |mut acc, item| {
 5313                        acc.entry(item.item_id()).or_insert(item);
 5314                        acc
 5315                    });
 5316
 5317            // We use into_iter() here so that the references to the items are moved into
 5318            // the tasks and not kept alive while we're sleeping.
 5319            for (_, item) in unique_items.into_iter() {
 5320                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5321                    item.serialize(workspace, false, window, cx)
 5322                }) {
 5323                    cx.background_spawn(async move { task.await.log_err() })
 5324                        .detach();
 5325                }
 5326            }
 5327
 5328            cx.background_executor()
 5329                .timer(SERIALIZATION_THROTTLE_TIME)
 5330                .await;
 5331        }
 5332
 5333        Ok(())
 5334    }
 5335
 5336    pub(crate) fn enqueue_item_serialization(
 5337        &mut self,
 5338        item: Box<dyn SerializableItemHandle>,
 5339    ) -> Result<()> {
 5340        self.serializable_items_tx
 5341            .unbounded_send(item)
 5342            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5343    }
 5344
 5345    pub(crate) fn load_workspace(
 5346        serialized_workspace: SerializedWorkspace,
 5347        paths_to_open: Vec<Option<ProjectPath>>,
 5348        window: &mut Window,
 5349        cx: &mut Context<Workspace>,
 5350    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5351        cx.spawn_in(window, async move |workspace, cx| {
 5352            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5353
 5354            let mut center_group = None;
 5355            let mut center_items = None;
 5356
 5357            // Traverse the splits tree and add to things
 5358            if let Some((group, active_pane, items)) = serialized_workspace
 5359                .center_group
 5360                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5361                .await
 5362            {
 5363                center_items = Some(items);
 5364                center_group = Some((group, active_pane))
 5365            }
 5366
 5367            let mut items_by_project_path = HashMap::default();
 5368            let mut item_ids_by_kind = HashMap::default();
 5369            let mut all_deserialized_items = Vec::default();
 5370            cx.update(|_, cx| {
 5371                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5372                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5373                        item_ids_by_kind
 5374                            .entry(serializable_item_handle.serialized_item_kind())
 5375                            .or_insert(Vec::new())
 5376                            .push(item.item_id().as_u64() as ItemId);
 5377                    }
 5378
 5379                    if let Some(project_path) = item.project_path(cx) {
 5380                        items_by_project_path.insert(project_path, item.clone());
 5381                    }
 5382                    all_deserialized_items.push(item);
 5383                }
 5384            })?;
 5385
 5386            let opened_items = paths_to_open
 5387                .into_iter()
 5388                .map(|path_to_open| {
 5389                    path_to_open
 5390                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5391                })
 5392                .collect::<Vec<_>>();
 5393
 5394            // Remove old panes from workspace panes list
 5395            workspace.update_in(cx, |workspace, window, cx| {
 5396                if let Some((center_group, active_pane)) = center_group {
 5397                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5398
 5399                    // Swap workspace center group
 5400                    workspace.center = PaneGroup::with_root(center_group);
 5401                    if let Some(active_pane) = active_pane {
 5402                        workspace.set_active_pane(&active_pane, window, cx);
 5403                        cx.focus_self(window);
 5404                    } else {
 5405                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5406                    }
 5407                }
 5408
 5409                let docks = serialized_workspace.docks;
 5410
 5411                for (dock, serialized_dock) in [
 5412                    (&mut workspace.right_dock, docks.right),
 5413                    (&mut workspace.left_dock, docks.left),
 5414                    (&mut workspace.bottom_dock, docks.bottom),
 5415                ]
 5416                .iter_mut()
 5417                {
 5418                    dock.update(cx, |dock, cx| {
 5419                        dock.serialized_dock = Some(serialized_dock.clone());
 5420                        dock.restore_state(window, cx);
 5421                    });
 5422                }
 5423
 5424                cx.notify();
 5425            })?;
 5426
 5427            let _ = project
 5428                .update(cx, |project, cx| {
 5429                    project
 5430                        .breakpoint_store()
 5431                        .update(cx, |breakpoint_store, cx| {
 5432                            breakpoint_store
 5433                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5434                        })
 5435                })?
 5436                .await;
 5437
 5438            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5439            // after loading the items, we might have different items and in order to avoid
 5440            // the database filling up, we delete items that haven't been loaded now.
 5441            //
 5442            // The items that have been loaded, have been saved after they've been added to the workspace.
 5443            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5444                item_ids_by_kind
 5445                    .into_iter()
 5446                    .map(|(item_kind, loaded_items)| {
 5447                        SerializableItemRegistry::cleanup(
 5448                            item_kind,
 5449                            serialized_workspace.id,
 5450                            loaded_items,
 5451                            window,
 5452                            cx,
 5453                        )
 5454                        .log_err()
 5455                    })
 5456                    .collect::<Vec<_>>()
 5457            })?;
 5458
 5459            futures::future::join_all(clean_up_tasks).await;
 5460
 5461            workspace
 5462                .update_in(cx, |workspace, window, cx| {
 5463                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5464                    workspace.serialize_workspace_internal(window, cx).detach();
 5465
 5466                    // Ensure that we mark the window as edited if we did load dirty items
 5467                    workspace.update_window_edited(window, cx);
 5468                })
 5469                .ok();
 5470
 5471            Ok(opened_items)
 5472        })
 5473    }
 5474
 5475    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5476        self.add_workspace_actions_listeners(div, window, cx)
 5477            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5478            .on_action(cx.listener(Self::close_all_items_and_panes))
 5479            .on_action(cx.listener(Self::save_all))
 5480            .on_action(cx.listener(Self::send_keystrokes))
 5481            .on_action(cx.listener(Self::add_folder_to_project))
 5482            .on_action(cx.listener(Self::follow_next_collaborator))
 5483            .on_action(cx.listener(Self::close_window))
 5484            .on_action(cx.listener(Self::activate_pane_at_index))
 5485            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5486            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5487            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5488                let pane = workspace.active_pane().clone();
 5489                workspace.unfollow_in_pane(&pane, window, cx);
 5490            }))
 5491            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5492                workspace
 5493                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5494                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5495            }))
 5496            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5497                workspace
 5498                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5499                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5500            }))
 5501            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5502                workspace
 5503                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5504                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5505            }))
 5506            .on_action(
 5507                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5508                    workspace.activate_previous_pane(window, cx)
 5509                }),
 5510            )
 5511            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5512                workspace.activate_next_pane(window, cx)
 5513            }))
 5514            .on_action(
 5515                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5516                    workspace.activate_next_window(cx)
 5517                }),
 5518            )
 5519            .on_action(
 5520                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5521                    workspace.activate_previous_window(cx)
 5522                }),
 5523            )
 5524            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5525                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5526            }))
 5527            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5528                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5529            }))
 5530            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5531                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5532            }))
 5533            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5534                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5535            }))
 5536            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5537                workspace.activate_next_pane(window, cx)
 5538            }))
 5539            .on_action(cx.listener(
 5540                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5541                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5542                },
 5543            ))
 5544            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5545                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5546            }))
 5547            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5548                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5549            }))
 5550            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5551                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5552            }))
 5553            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5554                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5555            }))
 5556            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5557                this.toggle_dock(DockPosition::Left, window, cx);
 5558            }))
 5559            .on_action(cx.listener(
 5560                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5561                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5562                },
 5563            ))
 5564            .on_action(cx.listener(
 5565                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5566                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5567                },
 5568            ))
 5569            .on_action(cx.listener(
 5570                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5571                    if !workspace.close_active_dock(window, cx) {
 5572                        cx.propagate();
 5573                    }
 5574                },
 5575            ))
 5576            .on_action(
 5577                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5578                    workspace.close_all_docks(window, cx);
 5579                }),
 5580            )
 5581            .on_action(cx.listener(
 5582                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5583                    workspace.clear_all_notifications(cx);
 5584                },
 5585            ))
 5586            .on_action(cx.listener(
 5587                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5588                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5589                        workspace.suppress_notification(&notification_id, cx);
 5590                    }
 5591                },
 5592            ))
 5593            .on_action(cx.listener(
 5594                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5595                    workspace.reopen_closed_item(window, cx).detach();
 5596                },
 5597            ))
 5598            .on_action(cx.listener(
 5599                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5600                    for dock in workspace.all_docks() {
 5601                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5602                            let Some(panel) = dock.read(cx).active_panel() else {
 5603                                return;
 5604                            };
 5605
 5606                            // Set to `None`, then the size will fall back to the default.
 5607                            panel.clone().set_size(None, window, cx);
 5608
 5609                            return;
 5610                        }
 5611                    }
 5612                },
 5613            ))
 5614            .on_action(cx.listener(
 5615                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5616                    for dock in workspace.all_docks() {
 5617                        if let Some(panel) = dock.read(cx).visible_panel() {
 5618                            // Set to `None`, then the size will fall back to the default.
 5619                            panel.clone().set_size(None, window, cx);
 5620                        }
 5621                    }
 5622                },
 5623            ))
 5624            .on_action(cx.listener(
 5625                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5626                    adjust_active_dock_size_by_px(
 5627                        px_with_ui_font_fallback(act.px, cx),
 5628                        workspace,
 5629                        window,
 5630                        cx,
 5631                    );
 5632                },
 5633            ))
 5634            .on_action(cx.listener(
 5635                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5636                    adjust_active_dock_size_by_px(
 5637                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5638                        workspace,
 5639                        window,
 5640                        cx,
 5641                    );
 5642                },
 5643            ))
 5644            .on_action(cx.listener(
 5645                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5646                    adjust_open_docks_size_by_px(
 5647                        px_with_ui_font_fallback(act.px, cx),
 5648                        workspace,
 5649                        window,
 5650                        cx,
 5651                    );
 5652                },
 5653            ))
 5654            .on_action(cx.listener(
 5655                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5656                    adjust_open_docks_size_by_px(
 5657                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5658                        workspace,
 5659                        window,
 5660                        cx,
 5661                    );
 5662                },
 5663            ))
 5664            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5665            .on_action(cx.listener(Workspace::cancel))
 5666    }
 5667
 5668    #[cfg(any(test, feature = "test-support"))]
 5669    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5670        use node_runtime::NodeRuntime;
 5671        use session::Session;
 5672
 5673        let client = project.read(cx).client();
 5674        let user_store = project.read(cx).user_store();
 5675
 5676        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5677        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5678        window.activate_window();
 5679        let app_state = Arc::new(AppState {
 5680            languages: project.read(cx).languages().clone(),
 5681            workspace_store,
 5682            client,
 5683            user_store,
 5684            fs: project.read(cx).fs().clone(),
 5685            build_window_options: |_, _| Default::default(),
 5686            node_runtime: NodeRuntime::unavailable(),
 5687            session,
 5688        });
 5689        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5690        workspace
 5691            .active_pane
 5692            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5693        workspace
 5694    }
 5695
 5696    pub fn register_action<A: Action>(
 5697        &mut self,
 5698        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5699    ) -> &mut Self {
 5700        let callback = Arc::new(callback);
 5701
 5702        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5703            let callback = callback.clone();
 5704            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5705                (callback)(workspace, event, window, cx)
 5706            }))
 5707        }));
 5708        self
 5709    }
 5710    pub fn register_action_renderer(
 5711        &mut self,
 5712        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5713    ) -> &mut Self {
 5714        self.workspace_actions.push(Box::new(callback));
 5715        self
 5716    }
 5717
 5718    fn add_workspace_actions_listeners(
 5719        &self,
 5720        mut div: Div,
 5721        window: &mut Window,
 5722        cx: &mut Context<Self>,
 5723    ) -> Div {
 5724        for action in self.workspace_actions.iter() {
 5725            div = (action)(div, self, window, cx)
 5726        }
 5727        div
 5728    }
 5729
 5730    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5731        self.modal_layer.read(cx).has_active_modal()
 5732    }
 5733
 5734    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5735        self.modal_layer.read(cx).active_modal()
 5736    }
 5737
 5738    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5739    where
 5740        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5741    {
 5742        self.modal_layer.update(cx, |modal_layer, cx| {
 5743            modal_layer.toggle_modal(window, cx, build)
 5744        })
 5745    }
 5746
 5747    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 5748        self.toast_layer
 5749            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 5750    }
 5751
 5752    pub fn toggle_centered_layout(
 5753        &mut self,
 5754        _: &ToggleCenteredLayout,
 5755        _: &mut Window,
 5756        cx: &mut Context<Self>,
 5757    ) {
 5758        self.centered_layout = !self.centered_layout;
 5759        if let Some(database_id) = self.database_id() {
 5760            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 5761                .detach_and_log_err(cx);
 5762        }
 5763        cx.notify();
 5764    }
 5765
 5766    fn adjust_padding(padding: Option<f32>) -> f32 {
 5767        padding
 5768            .unwrap_or(Self::DEFAULT_PADDING)
 5769            .clamp(0.0, Self::MAX_PADDING)
 5770    }
 5771
 5772    fn render_dock(
 5773        &self,
 5774        position: DockPosition,
 5775        dock: &Entity<Dock>,
 5776        window: &mut Window,
 5777        cx: &mut App,
 5778    ) -> Option<Div> {
 5779        if self.zoomed_position == Some(position) {
 5780            return None;
 5781        }
 5782
 5783        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 5784            let pane = panel.pane(cx)?;
 5785            let follower_states = &self.follower_states;
 5786            leader_border_for_pane(follower_states, &pane, window, cx)
 5787        });
 5788
 5789        Some(
 5790            div()
 5791                .flex()
 5792                .flex_none()
 5793                .overflow_hidden()
 5794                .child(dock.clone())
 5795                .children(leader_border),
 5796        )
 5797    }
 5798
 5799    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 5800        window.root().flatten()
 5801    }
 5802
 5803    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 5804        self.zoomed.as_ref()
 5805    }
 5806
 5807    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 5808        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5809            return;
 5810        };
 5811        let windows = cx.windows();
 5812        let Some(next_window) = windows
 5813            .iter()
 5814            .cycle()
 5815            .skip_while(|window| window.window_id() != current_window_id)
 5816            .nth(1)
 5817        else {
 5818            return;
 5819        };
 5820        next_window
 5821            .update(cx, |_, window, _| window.activate_window())
 5822            .ok();
 5823    }
 5824
 5825    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 5826        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5827            return;
 5828        };
 5829        let windows = cx.windows();
 5830        let Some(prev_window) = windows
 5831            .iter()
 5832            .rev()
 5833            .cycle()
 5834            .skip_while(|window| window.window_id() != current_window_id)
 5835            .nth(1)
 5836        else {
 5837            return;
 5838        };
 5839        prev_window
 5840            .update(cx, |_, window, _| window.activate_window())
 5841            .ok();
 5842    }
 5843
 5844    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 5845        if cx.stop_active_drag(window) {
 5846            return;
 5847        } else if let Some((notification_id, _)) = self.notifications.pop() {
 5848            dismiss_app_notification(&notification_id, cx);
 5849        } else {
 5850            cx.propagate();
 5851        }
 5852    }
 5853
 5854    fn adjust_dock_size_by_px(
 5855        &mut self,
 5856        panel_size: Pixels,
 5857        dock_pos: DockPosition,
 5858        px: Pixels,
 5859        window: &mut Window,
 5860        cx: &mut Context<Self>,
 5861    ) {
 5862        match dock_pos {
 5863            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 5864            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 5865            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 5866        }
 5867    }
 5868
 5869    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5870        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 5871
 5872        self.left_dock.update(cx, |left_dock, cx| {
 5873            if WorkspaceSettings::get_global(cx)
 5874                .resize_all_panels_in_dock
 5875                .contains(&DockPosition::Left)
 5876            {
 5877                left_dock.resize_all_panels(Some(size), window, cx);
 5878            } else {
 5879                left_dock.resize_active_panel(Some(size), window, cx);
 5880            }
 5881        });
 5882    }
 5883
 5884    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5885        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 5886        self.left_dock.read_with(cx, |left_dock, cx| {
 5887            let left_dock_size = left_dock
 5888                .active_panel_size(window, cx)
 5889                .unwrap_or(Pixels(0.0));
 5890            if left_dock_size + size > self.bounds.right() {
 5891                size = self.bounds.right() - left_dock_size
 5892            }
 5893        });
 5894        self.right_dock.update(cx, |right_dock, cx| {
 5895            if WorkspaceSettings::get_global(cx)
 5896                .resize_all_panels_in_dock
 5897                .contains(&DockPosition::Right)
 5898            {
 5899                right_dock.resize_all_panels(Some(size), window, cx);
 5900            } else {
 5901                right_dock.resize_active_panel(Some(size), window, cx);
 5902            }
 5903        });
 5904    }
 5905
 5906    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5907        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 5908        self.bottom_dock.update(cx, |bottom_dock, cx| {
 5909            if WorkspaceSettings::get_global(cx)
 5910                .resize_all_panels_in_dock
 5911                .contains(&DockPosition::Bottom)
 5912            {
 5913                bottom_dock.resize_all_panels(Some(size), window, cx);
 5914            } else {
 5915                bottom_dock.resize_active_panel(Some(size), window, cx);
 5916            }
 5917        });
 5918    }
 5919}
 5920
 5921fn leader_border_for_pane(
 5922    follower_states: &HashMap<CollaboratorId, FollowerState>,
 5923    pane: &Entity<Pane>,
 5924    _: &Window,
 5925    cx: &App,
 5926) -> Option<Div> {
 5927    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 5928        if state.pane() == pane {
 5929            Some((*leader_id, state))
 5930        } else {
 5931            None
 5932        }
 5933    })?;
 5934
 5935    let mut leader_color = match leader_id {
 5936        CollaboratorId::PeerId(leader_peer_id) => {
 5937            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 5938            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 5939
 5940            cx.theme()
 5941                .players()
 5942                .color_for_participant(leader.participant_index.0)
 5943                .cursor
 5944        }
 5945        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 5946    };
 5947    leader_color.fade_out(0.3);
 5948    Some(
 5949        div()
 5950            .absolute()
 5951            .size_full()
 5952            .left_0()
 5953            .top_0()
 5954            .border_2()
 5955            .border_color(leader_color),
 5956    )
 5957}
 5958
 5959fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 5960    ZED_WINDOW_POSITION
 5961        .zip(*ZED_WINDOW_SIZE)
 5962        .map(|(position, size)| Bounds {
 5963            origin: position,
 5964            size,
 5965        })
 5966}
 5967
 5968fn open_items(
 5969    serialized_workspace: Option<SerializedWorkspace>,
 5970    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 5971    window: &mut Window,
 5972    cx: &mut Context<Workspace>,
 5973) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 5974    let restored_items = serialized_workspace.map(|serialized_workspace| {
 5975        Workspace::load_workspace(
 5976            serialized_workspace,
 5977            project_paths_to_open
 5978                .iter()
 5979                .map(|(_, project_path)| project_path)
 5980                .cloned()
 5981                .collect(),
 5982            window,
 5983            cx,
 5984        )
 5985    });
 5986
 5987    cx.spawn_in(window, async move |workspace, cx| {
 5988        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 5989
 5990        if let Some(restored_items) = restored_items {
 5991            let restored_items = restored_items.await?;
 5992
 5993            let restored_project_paths = restored_items
 5994                .iter()
 5995                .filter_map(|item| {
 5996                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 5997                        .ok()
 5998                        .flatten()
 5999                })
 6000                .collect::<HashSet<_>>();
 6001
 6002            for restored_item in restored_items {
 6003                opened_items.push(restored_item.map(Ok));
 6004            }
 6005
 6006            project_paths_to_open
 6007                .iter_mut()
 6008                .for_each(|(_, project_path)| {
 6009                    if let Some(project_path_to_open) = project_path {
 6010                        if restored_project_paths.contains(project_path_to_open) {
 6011                            *project_path = None;
 6012                        }
 6013                    }
 6014                });
 6015        } else {
 6016            for _ in 0..project_paths_to_open.len() {
 6017                opened_items.push(None);
 6018            }
 6019        }
 6020        assert!(opened_items.len() == project_paths_to_open.len());
 6021
 6022        let tasks =
 6023            project_paths_to_open
 6024                .into_iter()
 6025                .enumerate()
 6026                .map(|(ix, (abs_path, project_path))| {
 6027                    let workspace = workspace.clone();
 6028                    cx.spawn(async move |cx| {
 6029                        let file_project_path = project_path?;
 6030                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6031                            workspace.project().update(cx, |project, cx| {
 6032                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6033                            })
 6034                        });
 6035
 6036                        // We only want to open file paths here. If one of the items
 6037                        // here is a directory, it was already opened further above
 6038                        // with a `find_or_create_worktree`.
 6039                        if let Ok(task) = abs_path_task {
 6040                            if task.await.map_or(true, |p| p.is_file()) {
 6041                                return Some((
 6042                                    ix,
 6043                                    workspace
 6044                                        .update_in(cx, |workspace, window, cx| {
 6045                                            workspace.open_path(
 6046                                                file_project_path,
 6047                                                None,
 6048                                                true,
 6049                                                window,
 6050                                                cx,
 6051                                            )
 6052                                        })
 6053                                        .log_err()?
 6054                                        .await,
 6055                                ));
 6056                            }
 6057                        }
 6058                        None
 6059                    })
 6060                });
 6061
 6062        let tasks = tasks.collect::<Vec<_>>();
 6063
 6064        let tasks = futures::future::join_all(tasks);
 6065        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6066            opened_items[ix] = Some(path_open_result);
 6067        }
 6068
 6069        Ok(opened_items)
 6070    })
 6071}
 6072
 6073enum ActivateInDirectionTarget {
 6074    Pane(Entity<Pane>),
 6075    Dock(Entity<Dock>),
 6076}
 6077
 6078fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6079    workspace
 6080        .update(cx, |workspace, _, cx| {
 6081            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6082                struct DatabaseFailedNotification;
 6083
 6084                workspace.show_notification(
 6085                    NotificationId::unique::<DatabaseFailedNotification>(),
 6086                    cx,
 6087                    |cx| {
 6088                        cx.new(|cx| {
 6089                            MessageNotification::new("Failed to load the database file.", cx)
 6090                                .primary_message("File an Issue")
 6091                                .primary_icon(IconName::Plus)
 6092                                .primary_on_click(|window, cx| {
 6093                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6094                                })
 6095                        })
 6096                    },
 6097                );
 6098            }
 6099        })
 6100        .log_err();
 6101}
 6102
 6103fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6104    if val == 0 {
 6105        ThemeSettings::get_global(cx).ui_font_size(cx)
 6106    } else {
 6107        px(val as f32)
 6108    }
 6109}
 6110
 6111fn adjust_active_dock_size_by_px(
 6112    px: Pixels,
 6113    workspace: &mut Workspace,
 6114    window: &mut Window,
 6115    cx: &mut Context<Workspace>,
 6116) {
 6117    let Some(active_dock) = workspace
 6118        .all_docks()
 6119        .into_iter()
 6120        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6121    else {
 6122        return;
 6123    };
 6124    let dock = active_dock.read(cx);
 6125    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6126        return;
 6127    };
 6128    let dock_pos = dock.position();
 6129    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6130}
 6131
 6132fn adjust_open_docks_size_by_px(
 6133    px: Pixels,
 6134    workspace: &mut Workspace,
 6135    window: &mut Window,
 6136    cx: &mut Context<Workspace>,
 6137) {
 6138    let docks = workspace
 6139        .all_docks()
 6140        .into_iter()
 6141        .filter_map(|dock| {
 6142            if dock.read(cx).is_open() {
 6143                let dock = dock.read(cx);
 6144                let panel_size = dock.active_panel_size(window, cx)?;
 6145                let dock_pos = dock.position();
 6146                Some((panel_size, dock_pos, px))
 6147            } else {
 6148                None
 6149            }
 6150        })
 6151        .collect::<Vec<_>>();
 6152
 6153    docks
 6154        .into_iter()
 6155        .for_each(|(panel_size, dock_pos, offset)| {
 6156            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6157        });
 6158}
 6159
 6160impl Focusable for Workspace {
 6161    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6162        self.active_pane.focus_handle(cx)
 6163    }
 6164}
 6165
 6166#[derive(Clone)]
 6167struct DraggedDock(DockPosition);
 6168
 6169impl Render for DraggedDock {
 6170    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6171        gpui::Empty
 6172    }
 6173}
 6174
 6175impl Render for Workspace {
 6176    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6177        let mut context = KeyContext::new_with_defaults();
 6178        context.add("Workspace");
 6179        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6180        if let Some(status) = self
 6181            .debugger_provider
 6182            .as_ref()
 6183            .and_then(|provider| provider.active_thread_state(cx))
 6184        {
 6185            match status {
 6186                ThreadStatus::Running | ThreadStatus::Stepping => {
 6187                    context.add("debugger_running");
 6188                }
 6189                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6190                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6191            }
 6192        }
 6193
 6194        let centered_layout = self.centered_layout
 6195            && self.center.panes().len() == 1
 6196            && self.active_item(cx).is_some();
 6197        let render_padding = |size| {
 6198            (size > 0.0).then(|| {
 6199                div()
 6200                    .h_full()
 6201                    .w(relative(size))
 6202                    .bg(cx.theme().colors().editor_background)
 6203                    .border_color(cx.theme().colors().pane_group_border)
 6204            })
 6205        };
 6206        let paddings = if centered_layout {
 6207            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6208            (
 6209                render_padding(Self::adjust_padding(settings.left_padding)),
 6210                render_padding(Self::adjust_padding(settings.right_padding)),
 6211            )
 6212        } else {
 6213            (None, None)
 6214        };
 6215        let ui_font = theme::setup_ui_font(window, cx);
 6216
 6217        let theme = cx.theme().clone();
 6218        let colors = theme.colors();
 6219        let notification_entities = self
 6220            .notifications
 6221            .iter()
 6222            .map(|(_, notification)| notification.entity_id())
 6223            .collect::<Vec<_>>();
 6224
 6225        client_side_decorations(
 6226            self.actions(div(), window, cx)
 6227                .key_context(context)
 6228                .relative()
 6229                .size_full()
 6230                .flex()
 6231                .flex_col()
 6232                .font(ui_font)
 6233                .gap_0()
 6234                .justify_start()
 6235                .items_start()
 6236                .text_color(colors.text)
 6237                .overflow_hidden()
 6238                .children(self.titlebar_item.clone())
 6239                .on_modifiers_changed(move |_, _, cx| {
 6240                    for &id in &notification_entities {
 6241                        cx.notify(id);
 6242                    }
 6243                })
 6244                .child(
 6245                    div()
 6246                        .size_full()
 6247                        .relative()
 6248                        .flex_1()
 6249                        .flex()
 6250                        .flex_col()
 6251                        .child(
 6252                            div()
 6253                                .id("workspace")
 6254                                .bg(colors.background)
 6255                                .relative()
 6256                                .flex_1()
 6257                                .w_full()
 6258                                .flex()
 6259                                .flex_col()
 6260                                .overflow_hidden()
 6261                                .border_t_1()
 6262                                .border_b_1()
 6263                                .border_color(colors.border)
 6264                                .child({
 6265                                    let this = cx.entity().clone();
 6266                                    canvas(
 6267                                        move |bounds, window, cx| {
 6268                                            this.update(cx, |this, cx| {
 6269                                                let bounds_changed = this.bounds != bounds;
 6270                                                this.bounds = bounds;
 6271
 6272                                                if bounds_changed {
 6273                                                    this.left_dock.update(cx, |dock, cx| {
 6274                                                        dock.clamp_panel_size(
 6275                                                            bounds.size.width,
 6276                                                            window,
 6277                                                            cx,
 6278                                                        )
 6279                                                    });
 6280
 6281                                                    this.right_dock.update(cx, |dock, cx| {
 6282                                                        dock.clamp_panel_size(
 6283                                                            bounds.size.width,
 6284                                                            window,
 6285                                                            cx,
 6286                                                        )
 6287                                                    });
 6288
 6289                                                    this.bottom_dock.update(cx, |dock, cx| {
 6290                                                        dock.clamp_panel_size(
 6291                                                            bounds.size.height,
 6292                                                            window,
 6293                                                            cx,
 6294                                                        )
 6295                                                    });
 6296                                                }
 6297                                            })
 6298                                        },
 6299                                        |_, _, _, _| {},
 6300                                    )
 6301                                    .absolute()
 6302                                    .size_full()
 6303                                })
 6304                                .when(self.zoomed.is_none(), |this| {
 6305                                    this.on_drag_move(cx.listener(
 6306                                        move |workspace,
 6307                                              e: &DragMoveEvent<DraggedDock>,
 6308                                              window,
 6309                                              cx| {
 6310                                            if workspace.previous_dock_drag_coordinates
 6311                                                != Some(e.event.position)
 6312                                            {
 6313                                                workspace.previous_dock_drag_coordinates =
 6314                                                    Some(e.event.position);
 6315                                                match e.drag(cx).0 {
 6316                                                    DockPosition::Left => {
 6317                                                        workspace.resize_left_dock(
 6318                                                            e.event.position.x
 6319                                                                - workspace.bounds.left(),
 6320                                                            window,
 6321                                                            cx,
 6322                                                        );
 6323                                                    }
 6324                                                    DockPosition::Right => {
 6325                                                        workspace.resize_right_dock(
 6326                                                            workspace.bounds.right()
 6327                                                                - e.event.position.x,
 6328                                                            window,
 6329                                                            cx,
 6330                                                        );
 6331                                                    }
 6332                                                    DockPosition::Bottom => {
 6333                                                        workspace.resize_bottom_dock(
 6334                                                            workspace.bounds.bottom()
 6335                                                                - e.event.position.y,
 6336                                                            window,
 6337                                                            cx,
 6338                                                        );
 6339                                                    }
 6340                                                };
 6341                                                workspace.serialize_workspace(window, cx);
 6342                                            }
 6343                                        },
 6344                                    ))
 6345                                })
 6346                                .child({
 6347                                    match self.bottom_dock_layout {
 6348                                        BottomDockLayout::Full => div()
 6349                                            .flex()
 6350                                            .flex_col()
 6351                                            .h_full()
 6352                                            .child(
 6353                                                div()
 6354                                                    .flex()
 6355                                                    .flex_row()
 6356                                                    .flex_1()
 6357                                                    .overflow_hidden()
 6358                                                    .children(self.render_dock(
 6359                                                        DockPosition::Left,
 6360                                                        &self.left_dock,
 6361                                                        window,
 6362                                                        cx,
 6363                                                    ))
 6364                                                    .child(
 6365                                                        div()
 6366                                                            .flex()
 6367                                                            .flex_col()
 6368                                                            .flex_1()
 6369                                                            .overflow_hidden()
 6370                                                            .child(
 6371                                                                h_flex()
 6372                                                                    .flex_1()
 6373                                                                    .when_some(
 6374                                                                        paddings.0,
 6375                                                                        |this, p| {
 6376                                                                            this.child(
 6377                                                                                p.border_r_1(),
 6378                                                                            )
 6379                                                                        },
 6380                                                                    )
 6381                                                                    .child(self.center.render(
 6382                                                                        self.zoomed.as_ref(),
 6383                                                                        &PaneRenderContext {
 6384                                                                            follower_states:
 6385                                                                                &self.follower_states,
 6386                                                                            active_call: self.active_call(),
 6387                                                                            active_pane: &self.active_pane,
 6388                                                                            app_state: &self.app_state,
 6389                                                                            project: &self.project,
 6390                                                                            workspace: &self.weak_self,
 6391                                                                        },
 6392                                                                        window,
 6393                                                                        cx,
 6394                                                                    ))
 6395                                                                    .when_some(
 6396                                                                        paddings.1,
 6397                                                                        |this, p| {
 6398                                                                            this.child(
 6399                                                                                p.border_l_1(),
 6400                                                                            )
 6401                                                                        },
 6402                                                                    ),
 6403                                                            ),
 6404                                                    )
 6405                                                    .children(self.render_dock(
 6406                                                        DockPosition::Right,
 6407                                                        &self.right_dock,
 6408                                                        window,
 6409                                                        cx,
 6410                                                    )),
 6411                                            )
 6412                                            .child(div().w_full().children(self.render_dock(
 6413                                                DockPosition::Bottom,
 6414                                                &self.bottom_dock,
 6415                                                window,
 6416                                                cx
 6417                                            ))),
 6418
 6419                                        BottomDockLayout::LeftAligned => div()
 6420                                            .flex()
 6421                                            .flex_row()
 6422                                            .h_full()
 6423                                            .child(
 6424                                                div()
 6425                                                    .flex()
 6426                                                    .flex_col()
 6427                                                    .flex_1()
 6428                                                    .h_full()
 6429                                                    .child(
 6430                                                        div()
 6431                                                            .flex()
 6432                                                            .flex_row()
 6433                                                            .flex_1()
 6434                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6435                                                            .child(
 6436                                                                div()
 6437                                                                    .flex()
 6438                                                                    .flex_col()
 6439                                                                    .flex_1()
 6440                                                                    .overflow_hidden()
 6441                                                                    .child(
 6442                                                                        h_flex()
 6443                                                                            .flex_1()
 6444                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6445                                                                            .child(self.center.render(
 6446                                                                                self.zoomed.as_ref(),
 6447                                                                                &PaneRenderContext {
 6448                                                                                    follower_states:
 6449                                                                                        &self.follower_states,
 6450                                                                                    active_call: self.active_call(),
 6451                                                                                    active_pane: &self.active_pane,
 6452                                                                                    app_state: &self.app_state,
 6453                                                                                    project: &self.project,
 6454                                                                                    workspace: &self.weak_self,
 6455                                                                                },
 6456                                                                                window,
 6457                                                                                cx,
 6458                                                                            ))
 6459                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6460                                                                    )
 6461                                                            )
 6462                                                    )
 6463                                                    .child(
 6464                                                        div()
 6465                                                            .w_full()
 6466                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6467                                                    ),
 6468                                            )
 6469                                            .children(self.render_dock(
 6470                                                DockPosition::Right,
 6471                                                &self.right_dock,
 6472                                                window,
 6473                                                cx,
 6474                                            )),
 6475
 6476                                        BottomDockLayout::RightAligned => div()
 6477                                            .flex()
 6478                                            .flex_row()
 6479                                            .h_full()
 6480                                            .children(self.render_dock(
 6481                                                DockPosition::Left,
 6482                                                &self.left_dock,
 6483                                                window,
 6484                                                cx,
 6485                                            ))
 6486                                            .child(
 6487                                                div()
 6488                                                    .flex()
 6489                                                    .flex_col()
 6490                                                    .flex_1()
 6491                                                    .h_full()
 6492                                                    .child(
 6493                                                        div()
 6494                                                            .flex()
 6495                                                            .flex_row()
 6496                                                            .flex_1()
 6497                                                            .child(
 6498                                                                div()
 6499                                                                    .flex()
 6500                                                                    .flex_col()
 6501                                                                    .flex_1()
 6502                                                                    .overflow_hidden()
 6503                                                                    .child(
 6504                                                                        h_flex()
 6505                                                                            .flex_1()
 6506                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6507                                                                            .child(self.center.render(
 6508                                                                                self.zoomed.as_ref(),
 6509                                                                                &PaneRenderContext {
 6510                                                                                    follower_states:
 6511                                                                                        &self.follower_states,
 6512                                                                                    active_call: self.active_call(),
 6513                                                                                    active_pane: &self.active_pane,
 6514                                                                                    app_state: &self.app_state,
 6515                                                                                    project: &self.project,
 6516                                                                                    workspace: &self.weak_self,
 6517                                                                                },
 6518                                                                                window,
 6519                                                                                cx,
 6520                                                                            ))
 6521                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6522                                                                    )
 6523                                                            )
 6524                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6525                                                    )
 6526                                                    .child(
 6527                                                        div()
 6528                                                            .w_full()
 6529                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6530                                                    ),
 6531                                            ),
 6532
 6533                                        BottomDockLayout::Contained => div()
 6534                                            .flex()
 6535                                            .flex_row()
 6536                                            .h_full()
 6537                                            .children(self.render_dock(
 6538                                                DockPosition::Left,
 6539                                                &self.left_dock,
 6540                                                window,
 6541                                                cx,
 6542                                            ))
 6543                                            .child(
 6544                                                div()
 6545                                                    .flex()
 6546                                                    .flex_col()
 6547                                                    .flex_1()
 6548                                                    .overflow_hidden()
 6549                                                    .child(
 6550                                                        h_flex()
 6551                                                            .flex_1()
 6552                                                            .when_some(paddings.0, |this, p| {
 6553                                                                this.child(p.border_r_1())
 6554                                                            })
 6555                                                            .child(self.center.render(
 6556                                                                self.zoomed.as_ref(),
 6557                                                                &PaneRenderContext {
 6558                                                                    follower_states:
 6559                                                                        &self.follower_states,
 6560                                                                    active_call: self.active_call(),
 6561                                                                    active_pane: &self.active_pane,
 6562                                                                    app_state: &self.app_state,
 6563                                                                    project: &self.project,
 6564                                                                    workspace: &self.weak_self,
 6565                                                                },
 6566                                                                window,
 6567                                                                cx,
 6568                                                            ))
 6569                                                            .when_some(paddings.1, |this, p| {
 6570                                                                this.child(p.border_l_1())
 6571                                                            }),
 6572                                                    )
 6573                                                    .children(self.render_dock(
 6574                                                        DockPosition::Bottom,
 6575                                                        &self.bottom_dock,
 6576                                                        window,
 6577                                                        cx,
 6578                                                    )),
 6579                                            )
 6580                                            .children(self.render_dock(
 6581                                                DockPosition::Right,
 6582                                                &self.right_dock,
 6583                                                window,
 6584                                                cx,
 6585                                            )),
 6586                                    }
 6587                                })
 6588                                .children(self.zoomed.as_ref().and_then(|view| {
 6589                                    let zoomed_view = view.upgrade()?;
 6590                                    let div = div()
 6591                                        .occlude()
 6592                                        .absolute()
 6593                                        .overflow_hidden()
 6594                                        .border_color(colors.border)
 6595                                        .bg(colors.background)
 6596                                        .child(zoomed_view)
 6597                                        .inset_0()
 6598                                        .shadow_lg();
 6599
 6600                                    Some(match self.zoomed_position {
 6601                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 6602                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 6603                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 6604                                        None => {
 6605                                            div.top_2().bottom_2().left_2().right_2().border_1()
 6606                                        }
 6607                                    })
 6608                                }))
 6609                                .children(self.render_notifications(window, cx)),
 6610                        )
 6611                        .child(self.status_bar.clone())
 6612                        .child(self.modal_layer.clone())
 6613                        .child(self.toast_layer.clone()),
 6614                ),
 6615            window,
 6616            cx,
 6617        )
 6618    }
 6619}
 6620
 6621impl WorkspaceStore {
 6622    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6623        Self {
 6624            workspaces: Default::default(),
 6625            _subscriptions: vec![
 6626                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6627                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6628            ],
 6629            client,
 6630        }
 6631    }
 6632
 6633    pub fn update_followers(
 6634        &self,
 6635        project_id: Option<u64>,
 6636        update: proto::update_followers::Variant,
 6637        cx: &App,
 6638    ) -> Option<()> {
 6639        let active_call = ActiveCall::try_global(cx)?;
 6640        let room_id = active_call.read(cx).room()?.read(cx).id();
 6641        self.client
 6642            .send(proto::UpdateFollowers {
 6643                room_id,
 6644                project_id,
 6645                variant: Some(update),
 6646            })
 6647            .log_err()
 6648    }
 6649
 6650    pub async fn handle_follow(
 6651        this: Entity<Self>,
 6652        envelope: TypedEnvelope<proto::Follow>,
 6653        mut cx: AsyncApp,
 6654    ) -> Result<proto::FollowResponse> {
 6655        this.update(&mut cx, |this, cx| {
 6656            let follower = Follower {
 6657                project_id: envelope.payload.project_id,
 6658                peer_id: envelope.original_sender_id()?,
 6659            };
 6660
 6661            let mut response = proto::FollowResponse::default();
 6662            this.workspaces.retain(|workspace| {
 6663                workspace
 6664                    .update(cx, |workspace, window, cx| {
 6665                        let handler_response =
 6666                            workspace.handle_follow(follower.project_id, window, cx);
 6667                        if let Some(active_view) = handler_response.active_view.clone() {
 6668                            if workspace.project.read(cx).remote_id() == follower.project_id {
 6669                                response.active_view = Some(active_view)
 6670                            }
 6671                        }
 6672                    })
 6673                    .is_ok()
 6674            });
 6675
 6676            Ok(response)
 6677        })?
 6678    }
 6679
 6680    async fn handle_update_followers(
 6681        this: Entity<Self>,
 6682        envelope: TypedEnvelope<proto::UpdateFollowers>,
 6683        mut cx: AsyncApp,
 6684    ) -> Result<()> {
 6685        let leader_id = envelope.original_sender_id()?;
 6686        let update = envelope.payload;
 6687
 6688        this.update(&mut cx, |this, cx| {
 6689            this.workspaces.retain(|workspace| {
 6690                workspace
 6691                    .update(cx, |workspace, window, cx| {
 6692                        let project_id = workspace.project.read(cx).remote_id();
 6693                        if update.project_id != project_id && update.project_id.is_some() {
 6694                            return;
 6695                        }
 6696                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 6697                    })
 6698                    .is_ok()
 6699            });
 6700            Ok(())
 6701        })?
 6702    }
 6703
 6704    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 6705        &self.workspaces
 6706    }
 6707}
 6708
 6709impl ViewId {
 6710    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 6711        Ok(Self {
 6712            creator: message
 6713                .creator
 6714                .map(CollaboratorId::PeerId)
 6715                .context("creator is missing")?,
 6716            id: message.id,
 6717        })
 6718    }
 6719
 6720    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 6721        if let CollaboratorId::PeerId(peer_id) = self.creator {
 6722            Some(proto::ViewId {
 6723                creator: Some(peer_id),
 6724                id: self.id,
 6725            })
 6726        } else {
 6727            None
 6728        }
 6729    }
 6730}
 6731
 6732impl FollowerState {
 6733    fn pane(&self) -> &Entity<Pane> {
 6734        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 6735    }
 6736}
 6737
 6738pub trait WorkspaceHandle {
 6739    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 6740}
 6741
 6742impl WorkspaceHandle for Entity<Workspace> {
 6743    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 6744        self.read(cx)
 6745            .worktrees(cx)
 6746            .flat_map(|worktree| {
 6747                let worktree_id = worktree.read(cx).id();
 6748                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 6749                    worktree_id,
 6750                    path: f.path.clone(),
 6751                })
 6752            })
 6753            .collect::<Vec<_>>()
 6754    }
 6755}
 6756
 6757impl std::fmt::Debug for OpenPaths {
 6758    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 6759        f.debug_struct("OpenPaths")
 6760            .field("paths", &self.paths)
 6761            .finish()
 6762    }
 6763}
 6764
 6765pub async fn last_opened_workspace_location() -> Option<SerializedWorkspaceLocation> {
 6766    DB.last_workspace().await.log_err().flatten()
 6767}
 6768
 6769pub fn last_session_workspace_locations(
 6770    last_session_id: &str,
 6771    last_session_window_stack: Option<Vec<WindowId>>,
 6772) -> Option<Vec<SerializedWorkspaceLocation>> {
 6773    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 6774        .log_err()
 6775}
 6776
 6777actions!(
 6778    collab,
 6779    [
 6780        /// Opens the channel notes for the current call.
 6781        ///
 6782        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 6783        /// can be copied via "Copy link to section" in the context menu of the channel notes
 6784        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 6785        OpenChannelNotes,
 6786        /// Mutes your microphone.
 6787        Mute,
 6788        /// Deafens yourself (mute both microphone and speakers).
 6789        Deafen,
 6790        /// Leaves the current call.
 6791        LeaveCall,
 6792        /// Shares the current project with collaborators.
 6793        ShareProject,
 6794        /// Shares your screen with collaborators.
 6795        ScreenShare
 6796    ]
 6797);
 6798actions!(
 6799    zed,
 6800    [
 6801        /// Opens the Zed log file.
 6802        OpenLog
 6803    ]
 6804);
 6805
 6806async fn join_channel_internal(
 6807    channel_id: ChannelId,
 6808    app_state: &Arc<AppState>,
 6809    requesting_window: Option<WindowHandle<Workspace>>,
 6810    active_call: &Entity<ActiveCall>,
 6811    cx: &mut AsyncApp,
 6812) -> Result<bool> {
 6813    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 6814        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 6815            return (false, None);
 6816        };
 6817
 6818        let already_in_channel = room.channel_id() == Some(channel_id);
 6819        let should_prompt = room.is_sharing_project()
 6820            && !room.remote_participants().is_empty()
 6821            && !already_in_channel;
 6822        let open_room = if already_in_channel {
 6823            active_call.room().cloned()
 6824        } else {
 6825            None
 6826        };
 6827        (should_prompt, open_room)
 6828    })?;
 6829
 6830    if let Some(room) = open_room {
 6831        let task = room.update(cx, |room, cx| {
 6832            if let Some((project, host)) = room.most_active_project(cx) {
 6833                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6834            }
 6835
 6836            None
 6837        })?;
 6838        if let Some(task) = task {
 6839            task.await?;
 6840        }
 6841        return anyhow::Ok(true);
 6842    }
 6843
 6844    if should_prompt {
 6845        if let Some(workspace) = requesting_window {
 6846            let answer = workspace
 6847                .update(cx, |_, window, cx| {
 6848                    window.prompt(
 6849                        PromptLevel::Warning,
 6850                        "Do you want to switch channels?",
 6851                        Some("Leaving this call will unshare your current project."),
 6852                        &["Yes, Join Channel", "Cancel"],
 6853                        cx,
 6854                    )
 6855                })?
 6856                .await;
 6857
 6858            if answer == Ok(1) {
 6859                return Ok(false);
 6860            }
 6861        } else {
 6862            return Ok(false); // unreachable!() hopefully
 6863        }
 6864    }
 6865
 6866    let client = cx.update(|cx| active_call.read(cx).client())?;
 6867
 6868    let mut client_status = client.status();
 6869
 6870    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 6871    'outer: loop {
 6872        let Some(status) = client_status.recv().await else {
 6873            anyhow::bail!("error connecting");
 6874        };
 6875
 6876        match status {
 6877            Status::Connecting
 6878            | Status::Authenticating
 6879            | Status::Reconnecting
 6880            | Status::Reauthenticating => continue,
 6881            Status::Connected { .. } => break 'outer,
 6882            Status::SignedOut => return Err(ErrorCode::SignedOut.into()),
 6883            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 6884            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 6885                return Err(ErrorCode::Disconnected.into());
 6886            }
 6887        }
 6888    }
 6889
 6890    let room = active_call
 6891        .update(cx, |active_call, cx| {
 6892            active_call.join_channel(channel_id, cx)
 6893        })?
 6894        .await?;
 6895
 6896    let Some(room) = room else {
 6897        return anyhow::Ok(true);
 6898    };
 6899
 6900    room.update(cx, |room, _| room.room_update_completed())?
 6901        .await;
 6902
 6903    let task = room.update(cx, |room, cx| {
 6904        if let Some((project, host)) = room.most_active_project(cx) {
 6905            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6906        }
 6907
 6908        // If you are the first to join a channel, see if you should share your project.
 6909        if room.remote_participants().is_empty() && !room.local_participant_is_guest() {
 6910            if let Some(workspace) = requesting_window {
 6911                let project = workspace.update(cx, |workspace, _, cx| {
 6912                    let project = workspace.project.read(cx);
 6913
 6914                    if !CallSettings::get_global(cx).share_on_join {
 6915                        return None;
 6916                    }
 6917
 6918                    if (project.is_local() || project.is_via_ssh())
 6919                        && project.visible_worktrees(cx).any(|tree| {
 6920                            tree.read(cx)
 6921                                .root_entry()
 6922                                .map_or(false, |entry| entry.is_dir())
 6923                        })
 6924                    {
 6925                        Some(workspace.project.clone())
 6926                    } else {
 6927                        None
 6928                    }
 6929                });
 6930                if let Ok(Some(project)) = project {
 6931                    return Some(cx.spawn(async move |room, cx| {
 6932                        room.update(cx, |room, cx| room.share_project(project, cx))?
 6933                            .await?;
 6934                        Ok(())
 6935                    }));
 6936                }
 6937            }
 6938        }
 6939
 6940        None
 6941    })?;
 6942    if let Some(task) = task {
 6943        task.await?;
 6944        return anyhow::Ok(true);
 6945    }
 6946    anyhow::Ok(false)
 6947}
 6948
 6949pub fn join_channel(
 6950    channel_id: ChannelId,
 6951    app_state: Arc<AppState>,
 6952    requesting_window: Option<WindowHandle<Workspace>>,
 6953    cx: &mut App,
 6954) -> Task<Result<()>> {
 6955    let active_call = ActiveCall::global(cx);
 6956    cx.spawn(async move |cx| {
 6957        let result = join_channel_internal(
 6958            channel_id,
 6959            &app_state,
 6960            requesting_window,
 6961            &active_call,
 6962             cx,
 6963        )
 6964            .await;
 6965
 6966        // join channel succeeded, and opened a window
 6967        if matches!(result, Ok(true)) {
 6968            return anyhow::Ok(());
 6969        }
 6970
 6971        // find an existing workspace to focus and show call controls
 6972        let mut active_window =
 6973            requesting_window.or_else(|| activate_any_workspace_window( cx));
 6974        if active_window.is_none() {
 6975            // no open workspaces, make one to show the error in (blergh)
 6976            let (window_handle, _) = cx
 6977                .update(|cx| {
 6978                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 6979                })?
 6980                .await?;
 6981
 6982            if result.is_ok() {
 6983                cx.update(|cx| {
 6984                    cx.dispatch_action(&OpenChannelNotes);
 6985                }).log_err();
 6986            }
 6987
 6988            active_window = Some(window_handle);
 6989        }
 6990
 6991        if let Err(err) = result {
 6992            log::error!("failed to join channel: {}", err);
 6993            if let Some(active_window) = active_window {
 6994                active_window
 6995                    .update(cx, |_, window, cx| {
 6996                        let detail: SharedString = match err.error_code() {
 6997                            ErrorCode::SignedOut => {
 6998                                "Please sign in to continue.".into()
 6999                            }
 7000                            ErrorCode::UpgradeRequired => {
 7001                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7002                            }
 7003                            ErrorCode::NoSuchChannel => {
 7004                                "No matching channel was found. Please check the link and try again.".into()
 7005                            }
 7006                            ErrorCode::Forbidden => {
 7007                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7008                            }
 7009                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7010                            _ => format!("{}\n\nPlease try again.", err).into(),
 7011                        };
 7012                        window.prompt(
 7013                            PromptLevel::Critical,
 7014                            "Failed to join channel",
 7015                            Some(&detail),
 7016                            &["Ok"],
 7017                        cx)
 7018                    })?
 7019                    .await
 7020                    .ok();
 7021            }
 7022        }
 7023
 7024        // return ok, we showed the error to the user.
 7025        anyhow::Ok(())
 7026    })
 7027}
 7028
 7029pub async fn get_any_active_workspace(
 7030    app_state: Arc<AppState>,
 7031    mut cx: AsyncApp,
 7032) -> anyhow::Result<WindowHandle<Workspace>> {
 7033    // find an existing workspace to focus and show call controls
 7034    let active_window = activate_any_workspace_window(&mut cx);
 7035    if active_window.is_none() {
 7036        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7037            .await?;
 7038    }
 7039    activate_any_workspace_window(&mut cx).context("could not open zed")
 7040}
 7041
 7042fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7043    cx.update(|cx| {
 7044        if let Some(workspace_window) = cx
 7045            .active_window()
 7046            .and_then(|window| window.downcast::<Workspace>())
 7047        {
 7048            return Some(workspace_window);
 7049        }
 7050
 7051        for window in cx.windows() {
 7052            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7053                workspace_window
 7054                    .update(cx, |_, window, _| window.activate_window())
 7055                    .ok();
 7056                return Some(workspace_window);
 7057            }
 7058        }
 7059        None
 7060    })
 7061    .ok()
 7062    .flatten()
 7063}
 7064
 7065pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7066    cx.windows()
 7067        .into_iter()
 7068        .filter_map(|window| window.downcast::<Workspace>())
 7069        .filter(|workspace| {
 7070            workspace
 7071                .read(cx)
 7072                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7073        })
 7074        .collect()
 7075}
 7076
 7077#[derive(Default)]
 7078pub struct OpenOptions {
 7079    pub visible: Option<OpenVisible>,
 7080    pub focus: Option<bool>,
 7081    pub open_new_workspace: Option<bool>,
 7082    pub replace_window: Option<WindowHandle<Workspace>>,
 7083    pub env: Option<HashMap<String, String>>,
 7084}
 7085
 7086#[allow(clippy::type_complexity)]
 7087pub fn open_paths(
 7088    abs_paths: &[PathBuf],
 7089    app_state: Arc<AppState>,
 7090    open_options: OpenOptions,
 7091    cx: &mut App,
 7092) -> Task<
 7093    anyhow::Result<(
 7094        WindowHandle<Workspace>,
 7095        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7096    )>,
 7097> {
 7098    let abs_paths = abs_paths.to_vec();
 7099    let mut existing = None;
 7100    let mut best_match = None;
 7101    let mut open_visible = OpenVisible::All;
 7102
 7103    cx.spawn(async move |cx| {
 7104        if open_options.open_new_workspace != Some(true) {
 7105            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7106            let all_metadatas = futures::future::join_all(all_paths)
 7107                .await
 7108                .into_iter()
 7109                .filter_map(|result| result.ok().flatten())
 7110                .collect::<Vec<_>>();
 7111
 7112            cx.update(|cx| {
 7113                for window in local_workspace_windows(&cx) {
 7114                    if let Ok(workspace) = window.read(&cx) {
 7115                        let m = workspace.project.read(&cx).visibility_for_paths(
 7116                            &abs_paths,
 7117                            &all_metadatas,
 7118                            open_options.open_new_workspace == None,
 7119                            cx,
 7120                        );
 7121                        if m > best_match {
 7122                            existing = Some(window);
 7123                            best_match = m;
 7124                        } else if best_match.is_none()
 7125                            && open_options.open_new_workspace == Some(false)
 7126                        {
 7127                            existing = Some(window)
 7128                        }
 7129                    }
 7130                }
 7131            })?;
 7132
 7133            if open_options.open_new_workspace.is_none() && existing.is_none() {
 7134                if all_metadatas.iter().all(|file| !file.is_dir) {
 7135                    cx.update(|cx| {
 7136                        if let Some(window) = cx
 7137                            .active_window()
 7138                            .and_then(|window| window.downcast::<Workspace>())
 7139                        {
 7140                            if let Ok(workspace) = window.read(cx) {
 7141                                let project = workspace.project().read(cx);
 7142                                if project.is_local() && !project.is_via_collab() {
 7143                                    existing = Some(window);
 7144                                    open_visible = OpenVisible::None;
 7145                                    return;
 7146                                }
 7147                            }
 7148                        }
 7149                        for window in local_workspace_windows(cx) {
 7150                            if let Ok(workspace) = window.read(cx) {
 7151                                let project = workspace.project().read(cx);
 7152                                if project.is_via_collab() {
 7153                                    continue;
 7154                                }
 7155                                existing = Some(window);
 7156                                open_visible = OpenVisible::None;
 7157                                break;
 7158                            }
 7159                        }
 7160                    })?;
 7161                }
 7162            }
 7163        }
 7164
 7165        if let Some(existing) = existing {
 7166            let open_task = existing
 7167                .update(cx, |workspace, window, cx| {
 7168                    window.activate_window();
 7169                    workspace.open_paths(
 7170                        abs_paths,
 7171                        OpenOptions {
 7172                            visible: Some(open_visible),
 7173                            ..Default::default()
 7174                        },
 7175                        None,
 7176                        window,
 7177                        cx,
 7178                    )
 7179                })?
 7180                .await;
 7181
 7182            _ = existing.update(cx, |workspace, _, cx| {
 7183                for item in open_task.iter().flatten() {
 7184                    if let Err(e) = item {
 7185                        workspace.show_error(&e, cx);
 7186                    }
 7187                }
 7188            });
 7189
 7190            Ok((existing, open_task))
 7191        } else {
 7192            cx.update(move |cx| {
 7193                Workspace::new_local(
 7194                    abs_paths,
 7195                    app_state.clone(),
 7196                    open_options.replace_window,
 7197                    open_options.env,
 7198                    cx,
 7199                )
 7200            })?
 7201            .await
 7202        }
 7203    })
 7204}
 7205
 7206pub fn open_new(
 7207    open_options: OpenOptions,
 7208    app_state: Arc<AppState>,
 7209    cx: &mut App,
 7210    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7211) -> Task<anyhow::Result<()>> {
 7212    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7213    cx.spawn(async move |cx| {
 7214        let (workspace, opened_paths) = task.await?;
 7215        workspace.update(cx, |workspace, window, cx| {
 7216            if opened_paths.is_empty() {
 7217                init(workspace, window, cx)
 7218            }
 7219        })?;
 7220        Ok(())
 7221    })
 7222}
 7223
 7224pub fn create_and_open_local_file(
 7225    path: &'static Path,
 7226    window: &mut Window,
 7227    cx: &mut Context<Workspace>,
 7228    default_content: impl 'static + Send + FnOnce() -> Rope,
 7229) -> Task<Result<Box<dyn ItemHandle>>> {
 7230    cx.spawn_in(window, async move |workspace, cx| {
 7231        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7232        if !fs.is_file(path).await {
 7233            fs.create_file(path, Default::default()).await?;
 7234            fs.save(path, &default_content(), Default::default())
 7235                .await?;
 7236        }
 7237
 7238        let mut items = workspace
 7239            .update_in(cx, |workspace, window, cx| {
 7240                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7241                    workspace.open_paths(
 7242                        vec![path.to_path_buf()],
 7243                        OpenOptions {
 7244                            visible: Some(OpenVisible::None),
 7245                            ..Default::default()
 7246                        },
 7247                        None,
 7248                        window,
 7249                        cx,
 7250                    )
 7251                })
 7252            })?
 7253            .await?
 7254            .await;
 7255
 7256        let item = items.pop().flatten();
 7257        item.with_context(|| format!("path {path:?} is not a file"))?
 7258    })
 7259}
 7260
 7261pub fn open_ssh_project_with_new_connection(
 7262    window: WindowHandle<Workspace>,
 7263    connection_options: SshConnectionOptions,
 7264    cancel_rx: oneshot::Receiver<()>,
 7265    delegate: Arc<dyn SshClientDelegate>,
 7266    app_state: Arc<AppState>,
 7267    paths: Vec<PathBuf>,
 7268    cx: &mut App,
 7269) -> Task<Result<()>> {
 7270    cx.spawn(async move |cx| {
 7271        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7272            serialize_ssh_project(connection_options.clone(), paths.clone(), &cx).await?;
 7273
 7274        let session = match cx
 7275            .update(|cx| {
 7276                remote::SshRemoteClient::new(
 7277                    ConnectionIdentifier::Workspace(workspace_id.0),
 7278                    connection_options,
 7279                    cancel_rx,
 7280                    delegate,
 7281                    cx,
 7282                )
 7283            })?
 7284            .await?
 7285        {
 7286            Some(result) => result,
 7287            None => return Ok(()),
 7288        };
 7289
 7290        let project = cx.update(|cx| {
 7291            project::Project::ssh(
 7292                session,
 7293                app_state.client.clone(),
 7294                app_state.node_runtime.clone(),
 7295                app_state.user_store.clone(),
 7296                app_state.languages.clone(),
 7297                app_state.fs.clone(),
 7298                cx,
 7299            )
 7300        })?;
 7301
 7302        open_ssh_project_inner(
 7303            project,
 7304            paths,
 7305            serialized_ssh_project,
 7306            workspace_id,
 7307            serialized_workspace,
 7308            app_state,
 7309            window,
 7310            cx,
 7311        )
 7312        .await
 7313    })
 7314}
 7315
 7316pub fn open_ssh_project_with_existing_connection(
 7317    connection_options: SshConnectionOptions,
 7318    project: Entity<Project>,
 7319    paths: Vec<PathBuf>,
 7320    app_state: Arc<AppState>,
 7321    window: WindowHandle<Workspace>,
 7322    cx: &mut AsyncApp,
 7323) -> Task<Result<()>> {
 7324    cx.spawn(async move |cx| {
 7325        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7326            serialize_ssh_project(connection_options.clone(), paths.clone(), &cx).await?;
 7327
 7328        open_ssh_project_inner(
 7329            project,
 7330            paths,
 7331            serialized_ssh_project,
 7332            workspace_id,
 7333            serialized_workspace,
 7334            app_state,
 7335            window,
 7336            cx,
 7337        )
 7338        .await
 7339    })
 7340}
 7341
 7342async fn open_ssh_project_inner(
 7343    project: Entity<Project>,
 7344    paths: Vec<PathBuf>,
 7345    serialized_ssh_project: SerializedSshProject,
 7346    workspace_id: WorkspaceId,
 7347    serialized_workspace: Option<SerializedWorkspace>,
 7348    app_state: Arc<AppState>,
 7349    window: WindowHandle<Workspace>,
 7350    cx: &mut AsyncApp,
 7351) -> Result<()> {
 7352    let toolchains = DB.toolchains(workspace_id).await?;
 7353    for (toolchain, worktree_id, path) in toolchains {
 7354        project
 7355            .update(cx, |this, cx| {
 7356                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7357            })?
 7358            .await;
 7359    }
 7360    let mut project_paths_to_open = vec![];
 7361    let mut project_path_errors = vec![];
 7362
 7363    for path in paths {
 7364        let result = cx
 7365            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7366            .await;
 7367        match result {
 7368            Ok((_, project_path)) => {
 7369                project_paths_to_open.push((path.clone(), Some(project_path)));
 7370            }
 7371            Err(error) => {
 7372                project_path_errors.push(error);
 7373            }
 7374        };
 7375    }
 7376
 7377    if project_paths_to_open.is_empty() {
 7378        return Err(project_path_errors.pop().context("no paths given")?);
 7379    }
 7380
 7381    cx.update_window(window.into(), |_, window, cx| {
 7382        window.replace_root(cx, |window, cx| {
 7383            telemetry::event!("SSH Project Opened");
 7384
 7385            let mut workspace =
 7386                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7387            workspace.set_serialized_ssh_project(serialized_ssh_project);
 7388            workspace.update_history(cx);
 7389
 7390            if let Some(ref serialized) = serialized_workspace {
 7391                workspace.centered_layout = serialized.centered_layout;
 7392            }
 7393
 7394            workspace
 7395        });
 7396    })?;
 7397
 7398    window
 7399        .update(cx, |_, window, cx| {
 7400            window.activate_window();
 7401            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7402        })?
 7403        .await?;
 7404
 7405    window.update(cx, |workspace, _, cx| {
 7406        for error in project_path_errors {
 7407            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7408                if let Some(path) = error.error_tag("path") {
 7409                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7410                }
 7411            } else {
 7412                workspace.show_error(&error, cx)
 7413            }
 7414        }
 7415    })?;
 7416
 7417    Ok(())
 7418}
 7419
 7420fn serialize_ssh_project(
 7421    connection_options: SshConnectionOptions,
 7422    paths: Vec<PathBuf>,
 7423    cx: &AsyncApp,
 7424) -> Task<
 7425    Result<(
 7426        SerializedSshProject,
 7427        WorkspaceId,
 7428        Option<SerializedWorkspace>,
 7429    )>,
 7430> {
 7431    cx.background_spawn(async move {
 7432        let serialized_ssh_project = persistence::DB
 7433            .get_or_create_ssh_project(
 7434                connection_options.host.clone(),
 7435                connection_options.port,
 7436                paths
 7437                    .iter()
 7438                    .map(|path| path.to_string_lossy().to_string())
 7439                    .collect::<Vec<_>>(),
 7440                connection_options.username.clone(),
 7441            )
 7442            .await?;
 7443
 7444        let serialized_workspace =
 7445            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 7446
 7447        let workspace_id = if let Some(workspace_id) =
 7448            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7449        {
 7450            workspace_id
 7451        } else {
 7452            persistence::DB.next_id().await?
 7453        };
 7454
 7455        Ok((serialized_ssh_project, workspace_id, serialized_workspace))
 7456    })
 7457}
 7458
 7459pub fn join_in_room_project(
 7460    project_id: u64,
 7461    follow_user_id: u64,
 7462    app_state: Arc<AppState>,
 7463    cx: &mut App,
 7464) -> Task<Result<()>> {
 7465    let windows = cx.windows();
 7466    cx.spawn(async move |cx| {
 7467        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7468            window_handle
 7469                .downcast::<Workspace>()
 7470                .and_then(|window_handle| {
 7471                    window_handle
 7472                        .update(cx, |workspace, _window, cx| {
 7473                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7474                                Some(window_handle)
 7475                            } else {
 7476                                None
 7477                            }
 7478                        })
 7479                        .unwrap_or(None)
 7480                })
 7481        });
 7482
 7483        let workspace = if let Some(existing_workspace) = existing_workspace {
 7484            existing_workspace
 7485        } else {
 7486            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7487            let room = active_call
 7488                .read_with(cx, |call, _| call.room().cloned())?
 7489                .context("not in a call")?;
 7490            let project = room
 7491                .update(cx, |room, cx| {
 7492                    room.join_project(
 7493                        project_id,
 7494                        app_state.languages.clone(),
 7495                        app_state.fs.clone(),
 7496                        cx,
 7497                    )
 7498                })?
 7499                .await?;
 7500
 7501            let window_bounds_override = window_bounds_env_override();
 7502            cx.update(|cx| {
 7503                let mut options = (app_state.build_window_options)(None, cx);
 7504                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7505                cx.open_window(options, |window, cx| {
 7506                    cx.new(|cx| {
 7507                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7508                    })
 7509                })
 7510            })??
 7511        };
 7512
 7513        workspace.update(cx, |workspace, window, cx| {
 7514            cx.activate(true);
 7515            window.activate_window();
 7516
 7517            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7518                let follow_peer_id = room
 7519                    .read(cx)
 7520                    .remote_participants()
 7521                    .iter()
 7522                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7523                    .map(|(_, p)| p.peer_id)
 7524                    .or_else(|| {
 7525                        // If we couldn't follow the given user, follow the host instead.
 7526                        let collaborator = workspace
 7527                            .project()
 7528                            .read(cx)
 7529                            .collaborators()
 7530                            .values()
 7531                            .find(|collaborator| collaborator.is_host)?;
 7532                        Some(collaborator.peer_id)
 7533                    });
 7534
 7535                if let Some(follow_peer_id) = follow_peer_id {
 7536                    workspace.follow(follow_peer_id, window, cx);
 7537                }
 7538            }
 7539        })?;
 7540
 7541        anyhow::Ok(())
 7542    })
 7543}
 7544
 7545pub fn reload(reload: &Reload, cx: &mut App) {
 7546    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7547    let mut workspace_windows = cx
 7548        .windows()
 7549        .into_iter()
 7550        .filter_map(|window| window.downcast::<Workspace>())
 7551        .collect::<Vec<_>>();
 7552
 7553    // If multiple windows have unsaved changes, and need a save prompt,
 7554    // prompt in the active window before switching to a different window.
 7555    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7556
 7557    let mut prompt = None;
 7558    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7559        prompt = window
 7560            .update(cx, |_, window, cx| {
 7561                window.prompt(
 7562                    PromptLevel::Info,
 7563                    "Are you sure you want to restart?",
 7564                    None,
 7565                    &["Restart", "Cancel"],
 7566                    cx,
 7567                )
 7568            })
 7569            .ok();
 7570    }
 7571
 7572    let binary_path = reload.binary_path.clone();
 7573    cx.spawn(async move |cx| {
 7574        if let Some(prompt) = prompt {
 7575            let answer = prompt.await?;
 7576            if answer != 0 {
 7577                return Ok(());
 7578            }
 7579        }
 7580
 7581        // If the user cancels any save prompt, then keep the app open.
 7582        for window in workspace_windows {
 7583            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7584                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7585            }) {
 7586                if !should_close.await? {
 7587                    return Ok(());
 7588                }
 7589            }
 7590        }
 7591
 7592        cx.update(|cx| cx.restart(binary_path))
 7593    })
 7594    .detach_and_log_err(cx);
 7595}
 7596
 7597fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7598    let mut parts = value.split(',');
 7599    let x: usize = parts.next()?.parse().ok()?;
 7600    let y: usize = parts.next()?.parse().ok()?;
 7601    Some(point(px(x as f32), px(y as f32)))
 7602}
 7603
 7604fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7605    let mut parts = value.split(',');
 7606    let width: usize = parts.next()?.parse().ok()?;
 7607    let height: usize = parts.next()?.parse().ok()?;
 7608    Some(size(px(width as f32), px(height as f32)))
 7609}
 7610
 7611/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7612pub fn client_side_decorations(
 7613    element: impl IntoElement,
 7614    window: &mut Window,
 7615    cx: &mut App,
 7616) -> Stateful<Div> {
 7617    const BORDER_SIZE: Pixels = px(1.0);
 7618    let decorations = window.window_decorations();
 7619
 7620    match decorations {
 7621        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7622        Decorations::Server { .. } => window.set_client_inset(px(0.0)),
 7623    }
 7624
 7625    struct GlobalResizeEdge(ResizeEdge);
 7626    impl Global for GlobalResizeEdge {}
 7627
 7628    div()
 7629        .id("window-backdrop")
 7630        .bg(transparent_black())
 7631        .map(|div| match decorations {
 7632            Decorations::Server => div,
 7633            Decorations::Client { tiling, .. } => div
 7634                .when(!(tiling.top || tiling.right), |div| {
 7635                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7636                })
 7637                .when(!(tiling.top || tiling.left), |div| {
 7638                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7639                })
 7640                .when(!(tiling.bottom || tiling.right), |div| {
 7641                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7642                })
 7643                .when(!(tiling.bottom || tiling.left), |div| {
 7644                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7645                })
 7646                .when(!tiling.top, |div| {
 7647                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7648                })
 7649                .when(!tiling.bottom, |div| {
 7650                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7651                })
 7652                .when(!tiling.left, |div| {
 7653                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7654                })
 7655                .when(!tiling.right, |div| {
 7656                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7657                })
 7658                .on_mouse_move(move |e, window, cx| {
 7659                    let size = window.window_bounds().get_bounds().size;
 7660                    let pos = e.position;
 7661
 7662                    let new_edge =
 7663                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 7664
 7665                    let edge = cx.try_global::<GlobalResizeEdge>();
 7666                    if new_edge != edge.map(|edge| edge.0) {
 7667                        window
 7668                            .window_handle()
 7669                            .update(cx, |workspace, _, cx| {
 7670                                cx.notify(workspace.entity_id());
 7671                            })
 7672                            .ok();
 7673                    }
 7674                })
 7675                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 7676                    let size = window.window_bounds().get_bounds().size;
 7677                    let pos = e.position;
 7678
 7679                    let edge = match resize_edge(
 7680                        pos,
 7681                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 7682                        size,
 7683                        tiling,
 7684                    ) {
 7685                        Some(value) => value,
 7686                        None => return,
 7687                    };
 7688
 7689                    window.start_window_resize(edge);
 7690                }),
 7691        })
 7692        .size_full()
 7693        .child(
 7694            div()
 7695                .cursor(CursorStyle::Arrow)
 7696                .map(|div| match decorations {
 7697                    Decorations::Server => div,
 7698                    Decorations::Client { tiling } => div
 7699                        .border_color(cx.theme().colors().border)
 7700                        .when(!(tiling.top || tiling.right), |div| {
 7701                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7702                        })
 7703                        .when(!(tiling.top || tiling.left), |div| {
 7704                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7705                        })
 7706                        .when(!(tiling.bottom || tiling.right), |div| {
 7707                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7708                        })
 7709                        .when(!(tiling.bottom || tiling.left), |div| {
 7710                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7711                        })
 7712                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 7713                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 7714                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 7715                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 7716                        .when(!tiling.is_tiled(), |div| {
 7717                            div.shadow(vec![gpui::BoxShadow {
 7718                                color: Hsla {
 7719                                    h: 0.,
 7720                                    s: 0.,
 7721                                    l: 0.,
 7722                                    a: 0.4,
 7723                                },
 7724                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 7725                                spread_radius: px(0.),
 7726                                offset: point(px(0.0), px(0.0)),
 7727                            }])
 7728                        }),
 7729                })
 7730                .on_mouse_move(|_e, _, cx| {
 7731                    cx.stop_propagation();
 7732                })
 7733                .size_full()
 7734                .child(element),
 7735        )
 7736        .map(|div| match decorations {
 7737            Decorations::Server => div,
 7738            Decorations::Client { tiling, .. } => div.child(
 7739                canvas(
 7740                    |_bounds, window, _| {
 7741                        window.insert_hitbox(
 7742                            Bounds::new(
 7743                                point(px(0.0), px(0.0)),
 7744                                window.window_bounds().get_bounds().size,
 7745                            ),
 7746                            HitboxBehavior::Normal,
 7747                        )
 7748                    },
 7749                    move |_bounds, hitbox, window, cx| {
 7750                        let mouse = window.mouse_position();
 7751                        let size = window.window_bounds().get_bounds().size;
 7752                        let Some(edge) =
 7753                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 7754                        else {
 7755                            return;
 7756                        };
 7757                        cx.set_global(GlobalResizeEdge(edge));
 7758                        window.set_cursor_style(
 7759                            match edge {
 7760                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 7761                                ResizeEdge::Left | ResizeEdge::Right => {
 7762                                    CursorStyle::ResizeLeftRight
 7763                                }
 7764                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 7765                                    CursorStyle::ResizeUpLeftDownRight
 7766                                }
 7767                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 7768                                    CursorStyle::ResizeUpRightDownLeft
 7769                                }
 7770                            },
 7771                            &hitbox,
 7772                        );
 7773                    },
 7774                )
 7775                .size_full()
 7776                .absolute(),
 7777            ),
 7778        })
 7779}
 7780
 7781fn resize_edge(
 7782    pos: Point<Pixels>,
 7783    shadow_size: Pixels,
 7784    window_size: Size<Pixels>,
 7785    tiling: Tiling,
 7786) -> Option<ResizeEdge> {
 7787    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 7788    if bounds.contains(&pos) {
 7789        return None;
 7790    }
 7791
 7792    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 7793    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 7794    if !tiling.top && top_left_bounds.contains(&pos) {
 7795        return Some(ResizeEdge::TopLeft);
 7796    }
 7797
 7798    let top_right_bounds = Bounds::new(
 7799        Point::new(window_size.width - corner_size.width, px(0.)),
 7800        corner_size,
 7801    );
 7802    if !tiling.top && top_right_bounds.contains(&pos) {
 7803        return Some(ResizeEdge::TopRight);
 7804    }
 7805
 7806    let bottom_left_bounds = Bounds::new(
 7807        Point::new(px(0.), window_size.height - corner_size.height),
 7808        corner_size,
 7809    );
 7810    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 7811        return Some(ResizeEdge::BottomLeft);
 7812    }
 7813
 7814    let bottom_right_bounds = Bounds::new(
 7815        Point::new(
 7816            window_size.width - corner_size.width,
 7817            window_size.height - corner_size.height,
 7818        ),
 7819        corner_size,
 7820    );
 7821    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 7822        return Some(ResizeEdge::BottomRight);
 7823    }
 7824
 7825    if !tiling.top && pos.y < shadow_size {
 7826        Some(ResizeEdge::Top)
 7827    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 7828        Some(ResizeEdge::Bottom)
 7829    } else if !tiling.left && pos.x < shadow_size {
 7830        Some(ResizeEdge::Left)
 7831    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 7832        Some(ResizeEdge::Right)
 7833    } else {
 7834        None
 7835    }
 7836}
 7837
 7838fn join_pane_into_active(
 7839    active_pane: &Entity<Pane>,
 7840    pane: &Entity<Pane>,
 7841    window: &mut Window,
 7842    cx: &mut App,
 7843) {
 7844    if pane == active_pane {
 7845        return;
 7846    } else if pane.read(cx).items_len() == 0 {
 7847        pane.update(cx, |_, cx| {
 7848            cx.emit(pane::Event::Remove {
 7849                focus_on_pane: None,
 7850            });
 7851        })
 7852    } else {
 7853        move_all_items(pane, active_pane, window, cx);
 7854    }
 7855}
 7856
 7857fn move_all_items(
 7858    from_pane: &Entity<Pane>,
 7859    to_pane: &Entity<Pane>,
 7860    window: &mut Window,
 7861    cx: &mut App,
 7862) {
 7863    let destination_is_different = from_pane != to_pane;
 7864    let mut moved_items = 0;
 7865    for (item_ix, item_handle) in from_pane
 7866        .read(cx)
 7867        .items()
 7868        .enumerate()
 7869        .map(|(ix, item)| (ix, item.clone()))
 7870        .collect::<Vec<_>>()
 7871    {
 7872        let ix = item_ix - moved_items;
 7873        if destination_is_different {
 7874            // Close item from previous pane
 7875            from_pane.update(cx, |source, cx| {
 7876                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 7877            });
 7878            moved_items += 1;
 7879        }
 7880
 7881        // This automatically removes duplicate items in the pane
 7882        to_pane.update(cx, |destination, cx| {
 7883            destination.add_item(item_handle, true, true, None, window, cx);
 7884            window.focus(&destination.focus_handle(cx))
 7885        });
 7886    }
 7887}
 7888
 7889pub fn move_item(
 7890    source: &Entity<Pane>,
 7891    destination: &Entity<Pane>,
 7892    item_id_to_move: EntityId,
 7893    destination_index: usize,
 7894    activate: bool,
 7895    window: &mut Window,
 7896    cx: &mut App,
 7897) {
 7898    let Some((item_ix, item_handle)) = source
 7899        .read(cx)
 7900        .items()
 7901        .enumerate()
 7902        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 7903        .map(|(ix, item)| (ix, item.clone()))
 7904    else {
 7905        // Tab was closed during drag
 7906        return;
 7907    };
 7908
 7909    if source != destination {
 7910        // Close item from previous pane
 7911        source.update(cx, |source, cx| {
 7912            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 7913        });
 7914    }
 7915
 7916    // This automatically removes duplicate items in the pane
 7917    destination.update(cx, |destination, cx| {
 7918        destination.add_item_inner(
 7919            item_handle,
 7920            activate,
 7921            activate,
 7922            activate,
 7923            Some(destination_index),
 7924            window,
 7925            cx,
 7926        );
 7927        if activate {
 7928            window.focus(&destination.focus_handle(cx))
 7929        }
 7930    });
 7931}
 7932
 7933pub fn move_active_item(
 7934    source: &Entity<Pane>,
 7935    destination: &Entity<Pane>,
 7936    focus_destination: bool,
 7937    close_if_empty: bool,
 7938    window: &mut Window,
 7939    cx: &mut App,
 7940) {
 7941    if source == destination {
 7942        return;
 7943    }
 7944    let Some(active_item) = source.read(cx).active_item() else {
 7945        return;
 7946    };
 7947    source.update(cx, |source_pane, cx| {
 7948        let item_id = active_item.item_id();
 7949        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 7950        destination.update(cx, |target_pane, cx| {
 7951            target_pane.add_item(
 7952                active_item,
 7953                focus_destination,
 7954                focus_destination,
 7955                Some(target_pane.items_len()),
 7956                window,
 7957                cx,
 7958            );
 7959        });
 7960    });
 7961}
 7962
 7963pub fn clone_active_item(
 7964    workspace_id: Option<WorkspaceId>,
 7965    source: &Entity<Pane>,
 7966    destination: &Entity<Pane>,
 7967    focus_destination: bool,
 7968    window: &mut Window,
 7969    cx: &mut App,
 7970) {
 7971    if source == destination {
 7972        return;
 7973    }
 7974    let Some(active_item) = source.read(cx).active_item() else {
 7975        return;
 7976    };
 7977    destination.update(cx, |target_pane, cx| {
 7978        let Some(clone) = active_item.clone_on_split(workspace_id, window, cx) else {
 7979            return;
 7980        };
 7981        target_pane.add_item(
 7982            clone,
 7983            focus_destination,
 7984            focus_destination,
 7985            Some(target_pane.items_len()),
 7986            window,
 7987            cx,
 7988        );
 7989    });
 7990}
 7991
 7992#[derive(Debug)]
 7993pub struct WorkspacePosition {
 7994    pub window_bounds: Option<WindowBounds>,
 7995    pub display: Option<Uuid>,
 7996    pub centered_layout: bool,
 7997}
 7998
 7999pub fn ssh_workspace_position_from_db(
 8000    host: String,
 8001    port: Option<u16>,
 8002    user: Option<String>,
 8003    paths_to_open: &[PathBuf],
 8004    cx: &App,
 8005) -> Task<Result<WorkspacePosition>> {
 8006    let paths = paths_to_open
 8007        .iter()
 8008        .map(|path| path.to_string_lossy().to_string())
 8009        .collect::<Vec<_>>();
 8010
 8011    cx.background_spawn(async move {
 8012        let serialized_ssh_project = persistence::DB
 8013            .get_or_create_ssh_project(host, port, paths, user)
 8014            .await
 8015            .context("fetching serialized ssh project")?;
 8016        let serialized_workspace =
 8017            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 8018
 8019        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8020            (Some(WindowBounds::Windowed(bounds)), None)
 8021        } else {
 8022            let restorable_bounds = serialized_workspace
 8023                .as_ref()
 8024                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8025                .or_else(|| {
 8026                    let (display, window_bounds) = DB.last_window().log_err()?;
 8027                    Some((display?, window_bounds?))
 8028                });
 8029
 8030            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8031                (Some(serialized_status.0), Some(serialized_display))
 8032            } else {
 8033                (None, None)
 8034            }
 8035        };
 8036
 8037        let centered_layout = serialized_workspace
 8038            .as_ref()
 8039            .map(|w| w.centered_layout)
 8040            .unwrap_or(false);
 8041
 8042        Ok(WorkspacePosition {
 8043            window_bounds,
 8044            display,
 8045            centered_layout,
 8046        })
 8047    })
 8048}
 8049
 8050pub fn with_active_or_new_workspace(
 8051    cx: &mut App,
 8052    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8053) {
 8054    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8055        Some(workspace) => {
 8056            cx.defer(move |cx| {
 8057                workspace
 8058                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8059                    .log_err();
 8060            });
 8061        }
 8062        None => {
 8063            let app_state = AppState::global(cx);
 8064            if let Some(app_state) = app_state.upgrade() {
 8065                open_new(
 8066                    OpenOptions::default(),
 8067                    app_state,
 8068                    cx,
 8069                    move |workspace, window, cx| f(workspace, window, cx),
 8070                )
 8071                .detach_and_log_err(cx);
 8072            }
 8073        }
 8074    }
 8075}
 8076
 8077#[cfg(test)]
 8078mod tests {
 8079    use std::{cell::RefCell, rc::Rc};
 8080
 8081    use super::*;
 8082    use crate::{
 8083        dock::{PanelEvent, test::TestPanel},
 8084        item::{
 8085            ItemEvent,
 8086            test::{TestItem, TestProjectItem},
 8087        },
 8088    };
 8089    use fs::FakeFs;
 8090    use gpui::{
 8091        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8092        UpdateGlobal, VisualTestContext, px,
 8093    };
 8094    use project::{Project, ProjectEntryId};
 8095    use serde_json::json;
 8096    use settings::SettingsStore;
 8097
 8098    #[gpui::test]
 8099    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8100        init_test(cx);
 8101
 8102        let fs = FakeFs::new(cx.executor());
 8103        let project = Project::test(fs, [], cx).await;
 8104        let (workspace, cx) =
 8105            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8106
 8107        // Adding an item with no ambiguity renders the tab without detail.
 8108        let item1 = cx.new(|cx| {
 8109            let mut item = TestItem::new(cx);
 8110            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8111            item
 8112        });
 8113        workspace.update_in(cx, |workspace, window, cx| {
 8114            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8115        });
 8116        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8117
 8118        // Adding an item that creates ambiguity increases the level of detail on
 8119        // both tabs.
 8120        let item2 = cx.new_window_entity(|_window, cx| {
 8121            let mut item = TestItem::new(cx);
 8122            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8123            item
 8124        });
 8125        workspace.update_in(cx, |workspace, window, cx| {
 8126            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8127        });
 8128        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8129        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8130
 8131        // Adding an item that creates ambiguity increases the level of detail only
 8132        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8133        // we stop at the highest detail available.
 8134        let item3 = cx.new(|cx| {
 8135            let mut item = TestItem::new(cx);
 8136            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8137            item
 8138        });
 8139        workspace.update_in(cx, |workspace, window, cx| {
 8140            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8141        });
 8142        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8143        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8144        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8145    }
 8146
 8147    #[gpui::test]
 8148    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8149        init_test(cx);
 8150
 8151        let fs = FakeFs::new(cx.executor());
 8152        fs.insert_tree(
 8153            "/root1",
 8154            json!({
 8155                "one.txt": "",
 8156                "two.txt": "",
 8157            }),
 8158        )
 8159        .await;
 8160        fs.insert_tree(
 8161            "/root2",
 8162            json!({
 8163                "three.txt": "",
 8164            }),
 8165        )
 8166        .await;
 8167
 8168        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8169        let (workspace, cx) =
 8170            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8171        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8172        let worktree_id = project.update(cx, |project, cx| {
 8173            project.worktrees(cx).next().unwrap().read(cx).id()
 8174        });
 8175
 8176        let item1 = cx.new(|cx| {
 8177            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8178        });
 8179        let item2 = cx.new(|cx| {
 8180            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8181        });
 8182
 8183        // Add an item to an empty pane
 8184        workspace.update_in(cx, |workspace, window, cx| {
 8185            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8186        });
 8187        project.update(cx, |project, cx| {
 8188            assert_eq!(
 8189                project.active_entry(),
 8190                project
 8191                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8192                    .map(|e| e.id)
 8193            );
 8194        });
 8195        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8196
 8197        // Add a second item to a non-empty pane
 8198        workspace.update_in(cx, |workspace, window, cx| {
 8199            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8200        });
 8201        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8202        project.update(cx, |project, cx| {
 8203            assert_eq!(
 8204                project.active_entry(),
 8205                project
 8206                    .entry_for_path(&(worktree_id, "two.txt").into(), cx)
 8207                    .map(|e| e.id)
 8208            );
 8209        });
 8210
 8211        // Close the active item
 8212        pane.update_in(cx, |pane, window, cx| {
 8213            pane.close_active_item(&Default::default(), window, cx)
 8214        })
 8215        .await
 8216        .unwrap();
 8217        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8218        project.update(cx, |project, cx| {
 8219            assert_eq!(
 8220                project.active_entry(),
 8221                project
 8222                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8223                    .map(|e| e.id)
 8224            );
 8225        });
 8226
 8227        // Add a project folder
 8228        project
 8229            .update(cx, |project, cx| {
 8230                project.find_or_create_worktree("root2", true, cx)
 8231            })
 8232            .await
 8233            .unwrap();
 8234        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8235
 8236        // Remove a project folder
 8237        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8238        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8239    }
 8240
 8241    #[gpui::test]
 8242    async fn test_close_window(cx: &mut TestAppContext) {
 8243        init_test(cx);
 8244
 8245        let fs = FakeFs::new(cx.executor());
 8246        fs.insert_tree("/root", json!({ "one": "" })).await;
 8247
 8248        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8249        let (workspace, cx) =
 8250            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8251
 8252        // When there are no dirty items, there's nothing to do.
 8253        let item1 = cx.new(TestItem::new);
 8254        workspace.update_in(cx, |w, window, cx| {
 8255            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8256        });
 8257        let task = workspace.update_in(cx, |w, window, cx| {
 8258            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8259        });
 8260        assert!(task.await.unwrap());
 8261
 8262        // When there are dirty untitled items, prompt to save each one. If the user
 8263        // cancels any prompt, then abort.
 8264        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8265        let item3 = cx.new(|cx| {
 8266            TestItem::new(cx)
 8267                .with_dirty(true)
 8268                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8269        });
 8270        workspace.update_in(cx, |w, window, cx| {
 8271            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8272            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8273        });
 8274        let task = workspace.update_in(cx, |w, window, cx| {
 8275            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8276        });
 8277        cx.executor().run_until_parked();
 8278        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8279        cx.executor().run_until_parked();
 8280        assert!(!cx.has_pending_prompt());
 8281        assert!(!task.await.unwrap());
 8282    }
 8283
 8284    #[gpui::test]
 8285    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8286        init_test(cx);
 8287
 8288        // Register TestItem as a serializable item
 8289        cx.update(|cx| {
 8290            register_serializable_item::<TestItem>(cx);
 8291        });
 8292
 8293        let fs = FakeFs::new(cx.executor());
 8294        fs.insert_tree("/root", json!({ "one": "" })).await;
 8295
 8296        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8297        let (workspace, cx) =
 8298            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8299
 8300        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8301        let item1 = cx.new(|cx| {
 8302            TestItem::new(cx)
 8303                .with_dirty(true)
 8304                .with_serialize(|| Some(Task::ready(Ok(()))))
 8305        });
 8306        let item2 = cx.new(|cx| {
 8307            TestItem::new(cx)
 8308                .with_dirty(true)
 8309                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8310                .with_serialize(|| Some(Task::ready(Ok(()))))
 8311        });
 8312        workspace.update_in(cx, |w, window, cx| {
 8313            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8314            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8315        });
 8316        let task = workspace.update_in(cx, |w, window, cx| {
 8317            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8318        });
 8319        assert!(task.await.unwrap());
 8320    }
 8321
 8322    #[gpui::test]
 8323    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8324        init_test(cx);
 8325
 8326        let fs = FakeFs::new(cx.executor());
 8327
 8328        let project = Project::test(fs, None, cx).await;
 8329        let (workspace, cx) =
 8330            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8331
 8332        let item1 = cx.new(|cx| {
 8333            TestItem::new(cx)
 8334                .with_dirty(true)
 8335                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8336        });
 8337        let item2 = cx.new(|cx| {
 8338            TestItem::new(cx)
 8339                .with_dirty(true)
 8340                .with_conflict(true)
 8341                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8342        });
 8343        let item3 = cx.new(|cx| {
 8344            TestItem::new(cx)
 8345                .with_dirty(true)
 8346                .with_conflict(true)
 8347                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8348        });
 8349        let item4 = cx.new(|cx| {
 8350            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8351                let project_item = TestProjectItem::new_untitled(cx);
 8352                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8353                project_item
 8354            }])
 8355        });
 8356        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8357            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8358            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8359            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8360            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8361            workspace.active_pane().clone()
 8362        });
 8363
 8364        let close_items = pane.update_in(cx, |pane, window, cx| {
 8365            pane.activate_item(1, true, true, window, cx);
 8366            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8367            let item1_id = item1.item_id();
 8368            let item3_id = item3.item_id();
 8369            let item4_id = item4.item_id();
 8370            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8371                [item1_id, item3_id, item4_id].contains(&id)
 8372            })
 8373        });
 8374        cx.executor().run_until_parked();
 8375
 8376        assert!(cx.has_pending_prompt());
 8377        cx.simulate_prompt_answer("Save all");
 8378
 8379        cx.executor().run_until_parked();
 8380
 8381        // Item 1 is saved. There's a prompt to save item 3.
 8382        pane.update(cx, |pane, cx| {
 8383            assert_eq!(item1.read(cx).save_count, 1);
 8384            assert_eq!(item1.read(cx).save_as_count, 0);
 8385            assert_eq!(item1.read(cx).reload_count, 0);
 8386            assert_eq!(pane.items_len(), 3);
 8387            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8388        });
 8389        assert!(cx.has_pending_prompt());
 8390
 8391        // Cancel saving item 3.
 8392        cx.simulate_prompt_answer("Discard");
 8393        cx.executor().run_until_parked();
 8394
 8395        // Item 3 is reloaded. There's a prompt to save item 4.
 8396        pane.update(cx, |pane, cx| {
 8397            assert_eq!(item3.read(cx).save_count, 0);
 8398            assert_eq!(item3.read(cx).save_as_count, 0);
 8399            assert_eq!(item3.read(cx).reload_count, 1);
 8400            assert_eq!(pane.items_len(), 2);
 8401            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8402        });
 8403
 8404        // There's a prompt for a path for item 4.
 8405        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8406        close_items.await.unwrap();
 8407
 8408        // The requested items are closed.
 8409        pane.update(cx, |pane, cx| {
 8410            assert_eq!(item4.read(cx).save_count, 0);
 8411            assert_eq!(item4.read(cx).save_as_count, 1);
 8412            assert_eq!(item4.read(cx).reload_count, 0);
 8413            assert_eq!(pane.items_len(), 1);
 8414            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8415        });
 8416    }
 8417
 8418    #[gpui::test]
 8419    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8420        init_test(cx);
 8421
 8422        let fs = FakeFs::new(cx.executor());
 8423        let project = Project::test(fs, [], cx).await;
 8424        let (workspace, cx) =
 8425            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8426
 8427        // Create several workspace items with single project entries, and two
 8428        // workspace items with multiple project entries.
 8429        let single_entry_items = (0..=4)
 8430            .map(|project_entry_id| {
 8431                cx.new(|cx| {
 8432                    TestItem::new(cx)
 8433                        .with_dirty(true)
 8434                        .with_project_items(&[dirty_project_item(
 8435                            project_entry_id,
 8436                            &format!("{project_entry_id}.txt"),
 8437                            cx,
 8438                        )])
 8439                })
 8440            })
 8441            .collect::<Vec<_>>();
 8442        let item_2_3 = cx.new(|cx| {
 8443            TestItem::new(cx)
 8444                .with_dirty(true)
 8445                .with_singleton(false)
 8446                .with_project_items(&[
 8447                    single_entry_items[2].read(cx).project_items[0].clone(),
 8448                    single_entry_items[3].read(cx).project_items[0].clone(),
 8449                ])
 8450        });
 8451        let item_3_4 = cx.new(|cx| {
 8452            TestItem::new(cx)
 8453                .with_dirty(true)
 8454                .with_singleton(false)
 8455                .with_project_items(&[
 8456                    single_entry_items[3].read(cx).project_items[0].clone(),
 8457                    single_entry_items[4].read(cx).project_items[0].clone(),
 8458                ])
 8459        });
 8460
 8461        // Create two panes that contain the following project entries:
 8462        //   left pane:
 8463        //     multi-entry items:   (2, 3)
 8464        //     single-entry items:  0, 2, 3, 4
 8465        //   right pane:
 8466        //     single-entry items:  4, 1
 8467        //     multi-entry items:   (3, 4)
 8468        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8469            let left_pane = workspace.active_pane().clone();
 8470            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8471            workspace.add_item_to_active_pane(
 8472                single_entry_items[0].boxed_clone(),
 8473                None,
 8474                true,
 8475                window,
 8476                cx,
 8477            );
 8478            workspace.add_item_to_active_pane(
 8479                single_entry_items[2].boxed_clone(),
 8480                None,
 8481                true,
 8482                window,
 8483                cx,
 8484            );
 8485            workspace.add_item_to_active_pane(
 8486                single_entry_items[3].boxed_clone(),
 8487                None,
 8488                true,
 8489                window,
 8490                cx,
 8491            );
 8492            workspace.add_item_to_active_pane(
 8493                single_entry_items[4].boxed_clone(),
 8494                None,
 8495                true,
 8496                window,
 8497                cx,
 8498            );
 8499
 8500            let right_pane = workspace
 8501                .split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx)
 8502                .unwrap();
 8503
 8504            right_pane.update(cx, |pane, cx| {
 8505                pane.add_item(
 8506                    single_entry_items[1].boxed_clone(),
 8507                    true,
 8508                    true,
 8509                    None,
 8510                    window,
 8511                    cx,
 8512                );
 8513                pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8514            });
 8515
 8516            (left_pane, right_pane)
 8517        });
 8518
 8519        cx.focus(&right_pane);
 8520
 8521        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8522            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8523                .unwrap()
 8524        });
 8525        cx.executor().run_until_parked();
 8526
 8527        let msg = cx.pending_prompt().unwrap().0;
 8528        assert!(msg.contains("1.txt"));
 8529        assert!(!msg.contains("2.txt"));
 8530        assert!(!msg.contains("3.txt"));
 8531        assert!(!msg.contains("4.txt"));
 8532
 8533        cx.simulate_prompt_answer("Cancel");
 8534        close.await;
 8535
 8536        left_pane
 8537            .update_in(cx, |left_pane, window, cx| {
 8538                left_pane.close_item_by_id(
 8539                    single_entry_items[3].entity_id(),
 8540                    SaveIntent::Skip,
 8541                    window,
 8542                    cx,
 8543                )
 8544            })
 8545            .await
 8546            .unwrap();
 8547
 8548        close = right_pane.update_in(cx, |pane, window, cx| {
 8549            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8550                .unwrap()
 8551        });
 8552        cx.executor().run_until_parked();
 8553
 8554        let details = cx.pending_prompt().unwrap().1;
 8555        assert!(details.contains("1.txt"));
 8556        assert!(!details.contains("2.txt"));
 8557        assert!(details.contains("3.txt"));
 8558        // ideally this assertion could be made, but today we can only
 8559        // save whole items not project items, so the orphaned item 3 causes
 8560        // 4 to be saved too.
 8561        // assert!(!details.contains("4.txt"));
 8562
 8563        cx.simulate_prompt_answer("Save all");
 8564
 8565        cx.executor().run_until_parked();
 8566        close.await;
 8567        right_pane.read_with(cx, |pane, _| {
 8568            assert_eq!(pane.items_len(), 0);
 8569        });
 8570    }
 8571
 8572    #[gpui::test]
 8573    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8574        init_test(cx);
 8575
 8576        let fs = FakeFs::new(cx.executor());
 8577        let project = Project::test(fs, [], cx).await;
 8578        let (workspace, cx) =
 8579            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8580        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8581
 8582        let item = cx.new(|cx| {
 8583            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8584        });
 8585        let item_id = item.entity_id();
 8586        workspace.update_in(cx, |workspace, window, cx| {
 8587            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8588        });
 8589
 8590        // Autosave on window change.
 8591        item.update(cx, |item, cx| {
 8592            SettingsStore::update_global(cx, |settings, cx| {
 8593                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8594                    settings.autosave = Some(AutosaveSetting::OnWindowChange);
 8595                })
 8596            });
 8597            item.is_dirty = true;
 8598        });
 8599
 8600        // Deactivating the window saves the file.
 8601        cx.deactivate_window();
 8602        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8603
 8604        // Re-activating the window doesn't save the file.
 8605        cx.update(|window, _| window.activate_window());
 8606        cx.executor().run_until_parked();
 8607        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8608
 8609        // Autosave on focus change.
 8610        item.update_in(cx, |item, window, cx| {
 8611            cx.focus_self(window);
 8612            SettingsStore::update_global(cx, |settings, cx| {
 8613                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8614                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8615                })
 8616            });
 8617            item.is_dirty = true;
 8618        });
 8619
 8620        // Blurring the item saves the file.
 8621        item.update_in(cx, |_, window, _| window.blur());
 8622        cx.executor().run_until_parked();
 8623        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8624
 8625        // Deactivating the window still saves the file.
 8626        item.update_in(cx, |item, window, cx| {
 8627            cx.focus_self(window);
 8628            item.is_dirty = true;
 8629        });
 8630        cx.deactivate_window();
 8631        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8632
 8633        // Autosave after delay.
 8634        item.update(cx, |item, cx| {
 8635            SettingsStore::update_global(cx, |settings, cx| {
 8636                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8637                    settings.autosave = Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
 8638                })
 8639            });
 8640            item.is_dirty = true;
 8641            cx.emit(ItemEvent::Edit);
 8642        });
 8643
 8644        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 8645        cx.executor().advance_clock(Duration::from_millis(250));
 8646        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 8647
 8648        // After delay expires, the file is saved.
 8649        cx.executor().advance_clock(Duration::from_millis(250));
 8650        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8651
 8652        // Autosave on focus change, ensuring closing the tab counts as such.
 8653        item.update(cx, |item, cx| {
 8654            SettingsStore::update_global(cx, |settings, cx| {
 8655                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8656                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8657                })
 8658            });
 8659            item.is_dirty = true;
 8660            for project_item in &mut item.project_items {
 8661                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8662            }
 8663        });
 8664
 8665        pane.update_in(cx, |pane, window, cx| {
 8666            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8667        })
 8668        .await
 8669        .unwrap();
 8670        assert!(!cx.has_pending_prompt());
 8671        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8672
 8673        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8674        workspace.update_in(cx, |workspace, window, cx| {
 8675            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8676        });
 8677        item.update_in(cx, |item, window, cx| {
 8678            item.project_items[0].update(cx, |item, _| {
 8679                item.entry_id = None;
 8680            });
 8681            item.is_dirty = true;
 8682            window.blur();
 8683        });
 8684        cx.run_until_parked();
 8685        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8686
 8687        // Ensure autosave is prevented for deleted files also when closing the buffer.
 8688        let _close_items = pane.update_in(cx, |pane, window, cx| {
 8689            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8690        });
 8691        cx.run_until_parked();
 8692        assert!(cx.has_pending_prompt());
 8693        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8694    }
 8695
 8696    #[gpui::test]
 8697    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 8698        init_test(cx);
 8699
 8700        let fs = FakeFs::new(cx.executor());
 8701
 8702        let project = Project::test(fs, [], cx).await;
 8703        let (workspace, cx) =
 8704            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8705
 8706        let item = cx.new(|cx| {
 8707            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8708        });
 8709        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8710        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 8711        let toolbar_notify_count = Rc::new(RefCell::new(0));
 8712
 8713        workspace.update_in(cx, |workspace, window, cx| {
 8714            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8715            let toolbar_notification_count = toolbar_notify_count.clone();
 8716            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 8717                *toolbar_notification_count.borrow_mut() += 1
 8718            })
 8719            .detach();
 8720        });
 8721
 8722        pane.read_with(cx, |pane, _| {
 8723            assert!(!pane.can_navigate_backward());
 8724            assert!(!pane.can_navigate_forward());
 8725        });
 8726
 8727        item.update_in(cx, |item, _, cx| {
 8728            item.set_state("one".to_string(), cx);
 8729        });
 8730
 8731        // Toolbar must be notified to re-render the navigation buttons
 8732        assert_eq!(*toolbar_notify_count.borrow(), 1);
 8733
 8734        pane.read_with(cx, |pane, _| {
 8735            assert!(pane.can_navigate_backward());
 8736            assert!(!pane.can_navigate_forward());
 8737        });
 8738
 8739        workspace
 8740            .update_in(cx, |workspace, window, cx| {
 8741                workspace.go_back(pane.downgrade(), window, cx)
 8742            })
 8743            .await
 8744            .unwrap();
 8745
 8746        assert_eq!(*toolbar_notify_count.borrow(), 2);
 8747        pane.read_with(cx, |pane, _| {
 8748            assert!(!pane.can_navigate_backward());
 8749            assert!(pane.can_navigate_forward());
 8750        });
 8751    }
 8752
 8753    #[gpui::test]
 8754    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 8755        init_test(cx);
 8756        let fs = FakeFs::new(cx.executor());
 8757
 8758        let project = Project::test(fs, [], cx).await;
 8759        let (workspace, cx) =
 8760            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8761
 8762        let panel = workspace.update_in(cx, |workspace, window, cx| {
 8763            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8764            workspace.add_panel(panel.clone(), window, cx);
 8765
 8766            workspace
 8767                .right_dock()
 8768                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 8769
 8770            panel
 8771        });
 8772
 8773        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8774        pane.update_in(cx, |pane, window, cx| {
 8775            let item = cx.new(TestItem::new);
 8776            pane.add_item(Box::new(item), true, true, None, window, cx);
 8777        });
 8778
 8779        // Transfer focus from center to panel
 8780        workspace.update_in(cx, |workspace, window, cx| {
 8781            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8782        });
 8783
 8784        workspace.update_in(cx, |workspace, window, cx| {
 8785            assert!(workspace.right_dock().read(cx).is_open());
 8786            assert!(!panel.is_zoomed(window, cx));
 8787            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8788        });
 8789
 8790        // Transfer focus from panel to center
 8791        workspace.update_in(cx, |workspace, window, cx| {
 8792            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8793        });
 8794
 8795        workspace.update_in(cx, |workspace, window, cx| {
 8796            assert!(workspace.right_dock().read(cx).is_open());
 8797            assert!(!panel.is_zoomed(window, cx));
 8798            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8799        });
 8800
 8801        // Close the dock
 8802        workspace.update_in(cx, |workspace, window, cx| {
 8803            workspace.toggle_dock(DockPosition::Right, window, cx);
 8804        });
 8805
 8806        workspace.update_in(cx, |workspace, window, cx| {
 8807            assert!(!workspace.right_dock().read(cx).is_open());
 8808            assert!(!panel.is_zoomed(window, cx));
 8809            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8810        });
 8811
 8812        // Open the dock
 8813        workspace.update_in(cx, |workspace, window, cx| {
 8814            workspace.toggle_dock(DockPosition::Right, window, cx);
 8815        });
 8816
 8817        workspace.update_in(cx, |workspace, window, cx| {
 8818            assert!(workspace.right_dock().read(cx).is_open());
 8819            assert!(!panel.is_zoomed(window, cx));
 8820            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8821        });
 8822
 8823        // Focus and zoom panel
 8824        panel.update_in(cx, |panel, window, cx| {
 8825            cx.focus_self(window);
 8826            panel.set_zoomed(true, window, cx)
 8827        });
 8828
 8829        workspace.update_in(cx, |workspace, window, cx| {
 8830            assert!(workspace.right_dock().read(cx).is_open());
 8831            assert!(panel.is_zoomed(window, cx));
 8832            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8833        });
 8834
 8835        // Transfer focus to the center closes the dock
 8836        workspace.update_in(cx, |workspace, window, cx| {
 8837            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8838        });
 8839
 8840        workspace.update_in(cx, |workspace, window, cx| {
 8841            assert!(!workspace.right_dock().read(cx).is_open());
 8842            assert!(panel.is_zoomed(window, cx));
 8843            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8844        });
 8845
 8846        // Transferring focus back to the panel keeps it zoomed
 8847        workspace.update_in(cx, |workspace, window, cx| {
 8848            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8849        });
 8850
 8851        workspace.update_in(cx, |workspace, window, cx| {
 8852            assert!(workspace.right_dock().read(cx).is_open());
 8853            assert!(panel.is_zoomed(window, cx));
 8854            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8855        });
 8856
 8857        // Close the dock while it is zoomed
 8858        workspace.update_in(cx, |workspace, window, cx| {
 8859            workspace.toggle_dock(DockPosition::Right, window, cx)
 8860        });
 8861
 8862        workspace.update_in(cx, |workspace, window, cx| {
 8863            assert!(!workspace.right_dock().read(cx).is_open());
 8864            assert!(panel.is_zoomed(window, cx));
 8865            assert!(workspace.zoomed.is_none());
 8866            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8867        });
 8868
 8869        // Opening the dock, when it's zoomed, retains focus
 8870        workspace.update_in(cx, |workspace, window, cx| {
 8871            workspace.toggle_dock(DockPosition::Right, window, cx)
 8872        });
 8873
 8874        workspace.update_in(cx, |workspace, window, cx| {
 8875            assert!(workspace.right_dock().read(cx).is_open());
 8876            assert!(panel.is_zoomed(window, cx));
 8877            assert!(workspace.zoomed.is_some());
 8878            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8879        });
 8880
 8881        // Unzoom and close the panel, zoom the active pane.
 8882        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 8883        workspace.update_in(cx, |workspace, window, cx| {
 8884            workspace.toggle_dock(DockPosition::Right, window, cx)
 8885        });
 8886        pane.update_in(cx, |pane, window, cx| {
 8887            pane.toggle_zoom(&Default::default(), window, cx)
 8888        });
 8889
 8890        // Opening a dock unzooms the pane.
 8891        workspace.update_in(cx, |workspace, window, cx| {
 8892            workspace.toggle_dock(DockPosition::Right, window, cx)
 8893        });
 8894        workspace.update_in(cx, |workspace, window, cx| {
 8895            let pane = pane.read(cx);
 8896            assert!(!pane.is_zoomed());
 8897            assert!(!pane.focus_handle(cx).is_focused(window));
 8898            assert!(workspace.right_dock().read(cx).is_open());
 8899            assert!(workspace.zoomed.is_none());
 8900        });
 8901    }
 8902
 8903    #[gpui::test]
 8904    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 8905        init_test(cx);
 8906
 8907        let fs = FakeFs::new(cx.executor());
 8908
 8909        let project = Project::test(fs, None, cx).await;
 8910        let (workspace, cx) =
 8911            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8912
 8913        // Let's arrange the panes like this:
 8914        //
 8915        // +-----------------------+
 8916        // |         top           |
 8917        // +------+--------+-------+
 8918        // | left | center | right |
 8919        // +------+--------+-------+
 8920        // |        bottom         |
 8921        // +-----------------------+
 8922
 8923        let top_item = cx.new(|cx| {
 8924            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 8925        });
 8926        let bottom_item = cx.new(|cx| {
 8927            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 8928        });
 8929        let left_item = cx.new(|cx| {
 8930            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 8931        });
 8932        let right_item = cx.new(|cx| {
 8933            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 8934        });
 8935        let center_item = cx.new(|cx| {
 8936            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 8937        });
 8938
 8939        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8940            let top_pane_id = workspace.active_pane().entity_id();
 8941            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 8942            workspace.split_pane(
 8943                workspace.active_pane().clone(),
 8944                SplitDirection::Down,
 8945                window,
 8946                cx,
 8947            );
 8948            top_pane_id
 8949        });
 8950        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8951            let bottom_pane_id = workspace.active_pane().entity_id();
 8952            workspace.add_item_to_active_pane(
 8953                Box::new(bottom_item.clone()),
 8954                None,
 8955                false,
 8956                window,
 8957                cx,
 8958            );
 8959            workspace.split_pane(
 8960                workspace.active_pane().clone(),
 8961                SplitDirection::Up,
 8962                window,
 8963                cx,
 8964            );
 8965            bottom_pane_id
 8966        });
 8967        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8968            let left_pane_id = workspace.active_pane().entity_id();
 8969            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 8970            workspace.split_pane(
 8971                workspace.active_pane().clone(),
 8972                SplitDirection::Right,
 8973                window,
 8974                cx,
 8975            );
 8976            left_pane_id
 8977        });
 8978        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8979            let right_pane_id = workspace.active_pane().entity_id();
 8980            workspace.add_item_to_active_pane(
 8981                Box::new(right_item.clone()),
 8982                None,
 8983                false,
 8984                window,
 8985                cx,
 8986            );
 8987            workspace.split_pane(
 8988                workspace.active_pane().clone(),
 8989                SplitDirection::Left,
 8990                window,
 8991                cx,
 8992            );
 8993            right_pane_id
 8994        });
 8995        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8996            let center_pane_id = workspace.active_pane().entity_id();
 8997            workspace.add_item_to_active_pane(
 8998                Box::new(center_item.clone()),
 8999                None,
 9000                false,
 9001                window,
 9002                cx,
 9003            );
 9004            center_pane_id
 9005        });
 9006        cx.executor().run_until_parked();
 9007
 9008        workspace.update_in(cx, |workspace, window, cx| {
 9009            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9010
 9011            // Join into next from center pane into right
 9012            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9013        });
 9014
 9015        workspace.update_in(cx, |workspace, window, cx| {
 9016            let active_pane = workspace.active_pane();
 9017            assert_eq!(right_pane_id, active_pane.entity_id());
 9018            assert_eq!(2, active_pane.read(cx).items_len());
 9019            let item_ids_in_pane =
 9020                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9021            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9022            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9023
 9024            // Join into next from right pane into bottom
 9025            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9026        });
 9027
 9028        workspace.update_in(cx, |workspace, window, cx| {
 9029            let active_pane = workspace.active_pane();
 9030            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9031            assert_eq!(3, active_pane.read(cx).items_len());
 9032            let item_ids_in_pane =
 9033                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9034            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9035            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9036            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9037
 9038            // Join into next from bottom pane into left
 9039            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9040        });
 9041
 9042        workspace.update_in(cx, |workspace, window, cx| {
 9043            let active_pane = workspace.active_pane();
 9044            assert_eq!(left_pane_id, active_pane.entity_id());
 9045            assert_eq!(4, active_pane.read(cx).items_len());
 9046            let item_ids_in_pane =
 9047                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9048            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9049            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9050            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9051            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9052
 9053            // Join into next from left pane into top
 9054            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9055        });
 9056
 9057        workspace.update_in(cx, |workspace, window, cx| {
 9058            let active_pane = workspace.active_pane();
 9059            assert_eq!(top_pane_id, active_pane.entity_id());
 9060            assert_eq!(5, active_pane.read(cx).items_len());
 9061            let item_ids_in_pane =
 9062                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9063            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9064            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9065            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9066            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9067            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9068
 9069            // Single pane left: no-op
 9070            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9071        });
 9072
 9073        workspace.update(cx, |workspace, _cx| {
 9074            let active_pane = workspace.active_pane();
 9075            assert_eq!(top_pane_id, active_pane.entity_id());
 9076        });
 9077    }
 9078
 9079    fn add_an_item_to_active_pane(
 9080        cx: &mut VisualTestContext,
 9081        workspace: &Entity<Workspace>,
 9082        item_id: u64,
 9083    ) -> Entity<TestItem> {
 9084        let item = cx.new(|cx| {
 9085            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9086                item_id,
 9087                "item{item_id}.txt",
 9088                cx,
 9089            )])
 9090        });
 9091        workspace.update_in(cx, |workspace, window, cx| {
 9092            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9093        });
 9094        return item;
 9095    }
 9096
 9097    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9098        return workspace.update_in(cx, |workspace, window, cx| {
 9099            let new_pane = workspace.split_pane(
 9100                workspace.active_pane().clone(),
 9101                SplitDirection::Right,
 9102                window,
 9103                cx,
 9104            );
 9105            new_pane
 9106        });
 9107    }
 9108
 9109    #[gpui::test]
 9110    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9111        init_test(cx);
 9112        let fs = FakeFs::new(cx.executor());
 9113        let project = Project::test(fs, None, cx).await;
 9114        let (workspace, cx) =
 9115            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9116
 9117        add_an_item_to_active_pane(cx, &workspace, 1);
 9118        split_pane(cx, &workspace);
 9119        add_an_item_to_active_pane(cx, &workspace, 2);
 9120        split_pane(cx, &workspace); // empty pane
 9121        split_pane(cx, &workspace);
 9122        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9123
 9124        cx.executor().run_until_parked();
 9125
 9126        workspace.update(cx, |workspace, cx| {
 9127            let num_panes = workspace.panes().len();
 9128            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9129            let active_item = workspace
 9130                .active_pane()
 9131                .read(cx)
 9132                .active_item()
 9133                .expect("item is in focus");
 9134
 9135            assert_eq!(num_panes, 4);
 9136            assert_eq!(num_items_in_current_pane, 1);
 9137            assert_eq!(active_item.item_id(), last_item.item_id());
 9138        });
 9139
 9140        workspace.update_in(cx, |workspace, window, cx| {
 9141            workspace.join_all_panes(window, cx);
 9142        });
 9143
 9144        workspace.update(cx, |workspace, cx| {
 9145            let num_panes = workspace.panes().len();
 9146            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9147            let active_item = workspace
 9148                .active_pane()
 9149                .read(cx)
 9150                .active_item()
 9151                .expect("item is in focus");
 9152
 9153            assert_eq!(num_panes, 1);
 9154            assert_eq!(num_items_in_current_pane, 3);
 9155            assert_eq!(active_item.item_id(), last_item.item_id());
 9156        });
 9157    }
 9158    struct TestModal(FocusHandle);
 9159
 9160    impl TestModal {
 9161        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9162            Self(cx.focus_handle())
 9163        }
 9164    }
 9165
 9166    impl EventEmitter<DismissEvent> for TestModal {}
 9167
 9168    impl Focusable for TestModal {
 9169        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9170            self.0.clone()
 9171        }
 9172    }
 9173
 9174    impl ModalView for TestModal {}
 9175
 9176    impl Render for TestModal {
 9177        fn render(
 9178            &mut self,
 9179            _window: &mut Window,
 9180            _cx: &mut Context<TestModal>,
 9181        ) -> impl IntoElement {
 9182            div().track_focus(&self.0)
 9183        }
 9184    }
 9185
 9186    #[gpui::test]
 9187    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9188        init_test(cx);
 9189        let fs = FakeFs::new(cx.executor());
 9190
 9191        let project = Project::test(fs, [], cx).await;
 9192        let (workspace, cx) =
 9193            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9194
 9195        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9196            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9197            workspace.add_panel(panel_1.clone(), window, cx);
 9198            workspace.toggle_dock(DockPosition::Left, window, cx);
 9199            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9200            workspace.add_panel(panel_2.clone(), window, cx);
 9201            workspace.toggle_dock(DockPosition::Right, window, cx);
 9202
 9203            let left_dock = workspace.left_dock();
 9204            assert_eq!(
 9205                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9206                panel_1.panel_id()
 9207            );
 9208            assert_eq!(
 9209                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9210                panel_1.size(window, cx)
 9211            );
 9212
 9213            left_dock.update(cx, |left_dock, cx| {
 9214                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9215            });
 9216            assert_eq!(
 9217                workspace
 9218                    .right_dock()
 9219                    .read(cx)
 9220                    .visible_panel()
 9221                    .unwrap()
 9222                    .panel_id(),
 9223                panel_2.panel_id(),
 9224            );
 9225
 9226            (panel_1, panel_2)
 9227        });
 9228
 9229        // Move panel_1 to the right
 9230        panel_1.update_in(cx, |panel_1, window, cx| {
 9231            panel_1.set_position(DockPosition::Right, window, cx)
 9232        });
 9233
 9234        workspace.update_in(cx, |workspace, window, cx| {
 9235            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9236            // Since it was the only panel on the left, the left dock should now be closed.
 9237            assert!(!workspace.left_dock().read(cx).is_open());
 9238            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9239            let right_dock = workspace.right_dock();
 9240            assert_eq!(
 9241                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9242                panel_1.panel_id()
 9243            );
 9244            assert_eq!(
 9245                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9246                px(1337.)
 9247            );
 9248
 9249            // Now we move panel_2 to the left
 9250            panel_2.set_position(DockPosition::Left, window, cx);
 9251        });
 9252
 9253        workspace.update(cx, |workspace, cx| {
 9254            // Since panel_2 was not visible on the right, we don't open the left dock.
 9255            assert!(!workspace.left_dock().read(cx).is_open());
 9256            // And the right dock is unaffected in its displaying of panel_1
 9257            assert!(workspace.right_dock().read(cx).is_open());
 9258            assert_eq!(
 9259                workspace
 9260                    .right_dock()
 9261                    .read(cx)
 9262                    .visible_panel()
 9263                    .unwrap()
 9264                    .panel_id(),
 9265                panel_1.panel_id(),
 9266            );
 9267        });
 9268
 9269        // Move panel_1 back to the left
 9270        panel_1.update_in(cx, |panel_1, window, cx| {
 9271            panel_1.set_position(DockPosition::Left, window, cx)
 9272        });
 9273
 9274        workspace.update_in(cx, |workspace, window, cx| {
 9275            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9276            let left_dock = workspace.left_dock();
 9277            assert!(left_dock.read(cx).is_open());
 9278            assert_eq!(
 9279                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9280                panel_1.panel_id()
 9281            );
 9282            assert_eq!(
 9283                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9284                px(1337.)
 9285            );
 9286            // And the right dock should be closed as it no longer has any panels.
 9287            assert!(!workspace.right_dock().read(cx).is_open());
 9288
 9289            // Now we move panel_1 to the bottom
 9290            panel_1.set_position(DockPosition::Bottom, window, cx);
 9291        });
 9292
 9293        workspace.update_in(cx, |workspace, window, cx| {
 9294            // Since panel_1 was visible on the left, we close the left dock.
 9295            assert!(!workspace.left_dock().read(cx).is_open());
 9296            // The bottom dock is sized based on the panel's default size,
 9297            // since the panel orientation changed from vertical to horizontal.
 9298            let bottom_dock = workspace.bottom_dock();
 9299            assert_eq!(
 9300                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9301                panel_1.size(window, cx),
 9302            );
 9303            // Close bottom dock and move panel_1 back to the left.
 9304            bottom_dock.update(cx, |bottom_dock, cx| {
 9305                bottom_dock.set_open(false, window, cx)
 9306            });
 9307            panel_1.set_position(DockPosition::Left, window, cx);
 9308        });
 9309
 9310        // Emit activated event on panel 1
 9311        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9312
 9313        // Now the left dock is open and panel_1 is active and focused.
 9314        workspace.update_in(cx, |workspace, window, cx| {
 9315            let left_dock = workspace.left_dock();
 9316            assert!(left_dock.read(cx).is_open());
 9317            assert_eq!(
 9318                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9319                panel_1.panel_id(),
 9320            );
 9321            assert!(panel_1.focus_handle(cx).is_focused(window));
 9322        });
 9323
 9324        // Emit closed event on panel 2, which is not active
 9325        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9326
 9327        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9328        workspace.update(cx, |workspace, cx| {
 9329            let left_dock = workspace.left_dock();
 9330            assert!(left_dock.read(cx).is_open());
 9331            assert_eq!(
 9332                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9333                panel_1.panel_id(),
 9334            );
 9335        });
 9336
 9337        // Emitting a ZoomIn event shows the panel as zoomed.
 9338        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9339        workspace.read_with(cx, |workspace, _| {
 9340            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9341            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9342        });
 9343
 9344        // Move panel to another dock while it is zoomed
 9345        panel_1.update_in(cx, |panel, window, cx| {
 9346            panel.set_position(DockPosition::Right, window, cx)
 9347        });
 9348        workspace.read_with(cx, |workspace, _| {
 9349            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9350
 9351            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9352        });
 9353
 9354        // This is a helper for getting a:
 9355        // - valid focus on an element,
 9356        // - that isn't a part of the panes and panels system of the Workspace,
 9357        // - and doesn't trigger the 'on_focus_lost' API.
 9358        let focus_other_view = {
 9359            let workspace = workspace.clone();
 9360            move |cx: &mut VisualTestContext| {
 9361                workspace.update_in(cx, |workspace, window, cx| {
 9362                    if let Some(_) = workspace.active_modal::<TestModal>(cx) {
 9363                        workspace.toggle_modal(window, cx, TestModal::new);
 9364                        workspace.toggle_modal(window, cx, TestModal::new);
 9365                    } else {
 9366                        workspace.toggle_modal(window, cx, TestModal::new);
 9367                    }
 9368                })
 9369            }
 9370        };
 9371
 9372        // If focus is transferred to another view that's not a panel or another pane, we still show
 9373        // the panel as zoomed.
 9374        focus_other_view(cx);
 9375        workspace.read_with(cx, |workspace, _| {
 9376            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9377            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9378        });
 9379
 9380        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 9381        workspace.update_in(cx, |_workspace, window, cx| {
 9382            cx.focus_self(window);
 9383        });
 9384        workspace.read_with(cx, |workspace, _| {
 9385            assert_eq!(workspace.zoomed, None);
 9386            assert_eq!(workspace.zoomed_position, None);
 9387        });
 9388
 9389        // If focus is transferred again to another view that's not a panel or a pane, we won't
 9390        // show the panel as zoomed because it wasn't zoomed before.
 9391        focus_other_view(cx);
 9392        workspace.read_with(cx, |workspace, _| {
 9393            assert_eq!(workspace.zoomed, None);
 9394            assert_eq!(workspace.zoomed_position, None);
 9395        });
 9396
 9397        // When the panel is activated, it is zoomed again.
 9398        cx.dispatch_action(ToggleRightDock);
 9399        workspace.read_with(cx, |workspace, _| {
 9400            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9401            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9402        });
 9403
 9404        // Emitting a ZoomOut event unzooms the panel.
 9405        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
 9406        workspace.read_with(cx, |workspace, _| {
 9407            assert_eq!(workspace.zoomed, None);
 9408            assert_eq!(workspace.zoomed_position, None);
 9409        });
 9410
 9411        // Emit closed event on panel 1, which is active
 9412        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9413
 9414        // Now the left dock is closed, because panel_1 was the active panel
 9415        workspace.update(cx, |workspace, cx| {
 9416            let right_dock = workspace.right_dock();
 9417            assert!(!right_dock.read(cx).is_open());
 9418        });
 9419    }
 9420
 9421    #[gpui::test]
 9422    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
 9423        init_test(cx);
 9424
 9425        let fs = FakeFs::new(cx.background_executor.clone());
 9426        let project = Project::test(fs, [], cx).await;
 9427        let (workspace, cx) =
 9428            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9429        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9430
 9431        let dirty_regular_buffer = cx.new(|cx| {
 9432            TestItem::new(cx)
 9433                .with_dirty(true)
 9434                .with_label("1.txt")
 9435                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9436        });
 9437        let dirty_regular_buffer_2 = cx.new(|cx| {
 9438            TestItem::new(cx)
 9439                .with_dirty(true)
 9440                .with_label("2.txt")
 9441                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9442        });
 9443        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9444            TestItem::new(cx)
 9445                .with_dirty(true)
 9446                .with_singleton(false)
 9447                .with_label("Fake Project Search")
 9448                .with_project_items(&[
 9449                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9450                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9451                ])
 9452        });
 9453        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9454        workspace.update_in(cx, |workspace, window, cx| {
 9455            workspace.add_item(
 9456                pane.clone(),
 9457                Box::new(dirty_regular_buffer.clone()),
 9458                None,
 9459                false,
 9460                false,
 9461                window,
 9462                cx,
 9463            );
 9464            workspace.add_item(
 9465                pane.clone(),
 9466                Box::new(dirty_regular_buffer_2.clone()),
 9467                None,
 9468                false,
 9469                false,
 9470                window,
 9471                cx,
 9472            );
 9473            workspace.add_item(
 9474                pane.clone(),
 9475                Box::new(dirty_multi_buffer_with_both.clone()),
 9476                None,
 9477                false,
 9478                false,
 9479                window,
 9480                cx,
 9481            );
 9482        });
 9483
 9484        pane.update_in(cx, |pane, window, cx| {
 9485            pane.activate_item(2, true, true, window, cx);
 9486            assert_eq!(
 9487                pane.active_item().unwrap().item_id(),
 9488                multi_buffer_with_both_files_id,
 9489                "Should select the multi buffer in the pane"
 9490            );
 9491        });
 9492        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9493            pane.close_other_items(
 9494                &CloseOtherItems {
 9495                    save_intent: Some(SaveIntent::Save),
 9496                    close_pinned: true,
 9497                },
 9498                None,
 9499                window,
 9500                cx,
 9501            )
 9502        });
 9503        cx.background_executor.run_until_parked();
 9504        assert!(!cx.has_pending_prompt());
 9505        close_all_but_multi_buffer_task
 9506            .await
 9507            .expect("Closing all buffers but the multi buffer failed");
 9508        pane.update(cx, |pane, cx| {
 9509            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
 9510            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
 9511            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
 9512            assert_eq!(pane.items_len(), 1);
 9513            assert_eq!(
 9514                pane.active_item().unwrap().item_id(),
 9515                multi_buffer_with_both_files_id,
 9516                "Should have only the multi buffer left in the pane"
 9517            );
 9518            assert!(
 9519                dirty_multi_buffer_with_both.read(cx).is_dirty,
 9520                "The multi buffer containing the unsaved buffer should still be dirty"
 9521            );
 9522        });
 9523
 9524        dirty_regular_buffer.update(cx, |buffer, cx| {
 9525            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
 9526        });
 9527
 9528        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9529            pane.close_active_item(
 9530                &CloseActiveItem {
 9531                    save_intent: Some(SaveIntent::Close),
 9532                    close_pinned: false,
 9533                },
 9534                window,
 9535                cx,
 9536            )
 9537        });
 9538        cx.background_executor.run_until_parked();
 9539        assert!(
 9540            cx.has_pending_prompt(),
 9541            "Dirty multi buffer should prompt a save dialog"
 9542        );
 9543        cx.simulate_prompt_answer("Save");
 9544        cx.background_executor.run_until_parked();
 9545        close_multi_buffer_task
 9546            .await
 9547            .expect("Closing the multi buffer failed");
 9548        pane.update(cx, |pane, cx| {
 9549            assert_eq!(
 9550                dirty_multi_buffer_with_both.read(cx).save_count,
 9551                1,
 9552                "Multi buffer item should get be saved"
 9553            );
 9554            // Test impl does not save inner items, so we do not assert them
 9555            assert_eq!(
 9556                pane.items_len(),
 9557                0,
 9558                "No more items should be left in the pane"
 9559            );
 9560            assert!(pane.active_item().is_none());
 9561        });
 9562    }
 9563
 9564    #[gpui::test]
 9565    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
 9566        cx: &mut TestAppContext,
 9567    ) {
 9568        init_test(cx);
 9569
 9570        let fs = FakeFs::new(cx.background_executor.clone());
 9571        let project = Project::test(fs, [], cx).await;
 9572        let (workspace, cx) =
 9573            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9574        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9575
 9576        let dirty_regular_buffer = cx.new(|cx| {
 9577            TestItem::new(cx)
 9578                .with_dirty(true)
 9579                .with_label("1.txt")
 9580                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9581        });
 9582        let dirty_regular_buffer_2 = cx.new(|cx| {
 9583            TestItem::new(cx)
 9584                .with_dirty(true)
 9585                .with_label("2.txt")
 9586                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9587        });
 9588        let clear_regular_buffer = cx.new(|cx| {
 9589            TestItem::new(cx)
 9590                .with_label("3.txt")
 9591                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9592        });
 9593
 9594        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9595            TestItem::new(cx)
 9596                .with_dirty(true)
 9597                .with_singleton(false)
 9598                .with_label("Fake Project Search")
 9599                .with_project_items(&[
 9600                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9601                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9602                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9603                ])
 9604        });
 9605        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9606        workspace.update_in(cx, |workspace, window, cx| {
 9607            workspace.add_item(
 9608                pane.clone(),
 9609                Box::new(dirty_regular_buffer.clone()),
 9610                None,
 9611                false,
 9612                false,
 9613                window,
 9614                cx,
 9615            );
 9616            workspace.add_item(
 9617                pane.clone(),
 9618                Box::new(dirty_multi_buffer_with_both.clone()),
 9619                None,
 9620                false,
 9621                false,
 9622                window,
 9623                cx,
 9624            );
 9625        });
 9626
 9627        pane.update_in(cx, |pane, window, cx| {
 9628            pane.activate_item(1, true, true, window, cx);
 9629            assert_eq!(
 9630                pane.active_item().unwrap().item_id(),
 9631                multi_buffer_with_both_files_id,
 9632                "Should select the multi buffer in the pane"
 9633            );
 9634        });
 9635        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9636            pane.close_active_item(
 9637                &CloseActiveItem {
 9638                    save_intent: None,
 9639                    close_pinned: false,
 9640                },
 9641                window,
 9642                cx,
 9643            )
 9644        });
 9645        cx.background_executor.run_until_parked();
 9646        assert!(
 9647            cx.has_pending_prompt(),
 9648            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
 9649        );
 9650    }
 9651
 9652    /// Tests that when `close_on_file_delete` is enabled, files are automatically
 9653    /// closed when they are deleted from disk.
 9654    #[gpui::test]
 9655    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
 9656        init_test(cx);
 9657
 9658        // Enable the close_on_disk_deletion setting
 9659        cx.update_global(|store: &mut SettingsStore, cx| {
 9660            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9661                settings.close_on_file_delete = Some(true);
 9662            });
 9663        });
 9664
 9665        let fs = FakeFs::new(cx.background_executor.clone());
 9666        let project = Project::test(fs, [], cx).await;
 9667        let (workspace, cx) =
 9668            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9669        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9670
 9671        // Create a test item that simulates a file
 9672        let item = cx.new(|cx| {
 9673            TestItem::new(cx)
 9674                .with_label("test.txt")
 9675                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9676        });
 9677
 9678        // Add item to workspace
 9679        workspace.update_in(cx, |workspace, window, cx| {
 9680            workspace.add_item(
 9681                pane.clone(),
 9682                Box::new(item.clone()),
 9683                None,
 9684                false,
 9685                false,
 9686                window,
 9687                cx,
 9688            );
 9689        });
 9690
 9691        // Verify the item is in the pane
 9692        pane.read_with(cx, |pane, _| {
 9693            assert_eq!(pane.items().count(), 1);
 9694        });
 9695
 9696        // Simulate file deletion by setting the item's deleted state
 9697        item.update(cx, |item, _| {
 9698            item.set_has_deleted_file(true);
 9699        });
 9700
 9701        // Emit UpdateTab event to trigger the close behavior
 9702        cx.run_until_parked();
 9703        item.update(cx, |_, cx| {
 9704            cx.emit(ItemEvent::UpdateTab);
 9705        });
 9706
 9707        // Allow the close operation to complete
 9708        cx.run_until_parked();
 9709
 9710        // Verify the item was automatically closed
 9711        pane.read_with(cx, |pane, _| {
 9712            assert_eq!(
 9713                pane.items().count(),
 9714                0,
 9715                "Item should be automatically closed when file is deleted"
 9716            );
 9717        });
 9718    }
 9719
 9720    /// Tests that when `close_on_file_delete` is disabled (default), files remain
 9721    /// open with a strikethrough when they are deleted from disk.
 9722    #[gpui::test]
 9723    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
 9724        init_test(cx);
 9725
 9726        // Ensure close_on_disk_deletion is disabled (default)
 9727        cx.update_global(|store: &mut SettingsStore, cx| {
 9728            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9729                settings.close_on_file_delete = Some(false);
 9730            });
 9731        });
 9732
 9733        let fs = FakeFs::new(cx.background_executor.clone());
 9734        let project = Project::test(fs, [], cx).await;
 9735        let (workspace, cx) =
 9736            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9737        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9738
 9739        // Create a test item that simulates a file
 9740        let item = cx.new(|cx| {
 9741            TestItem::new(cx)
 9742                .with_label("test.txt")
 9743                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9744        });
 9745
 9746        // Add item to workspace
 9747        workspace.update_in(cx, |workspace, window, cx| {
 9748            workspace.add_item(
 9749                pane.clone(),
 9750                Box::new(item.clone()),
 9751                None,
 9752                false,
 9753                false,
 9754                window,
 9755                cx,
 9756            );
 9757        });
 9758
 9759        // Verify the item is in the pane
 9760        pane.read_with(cx, |pane, _| {
 9761            assert_eq!(pane.items().count(), 1);
 9762        });
 9763
 9764        // Simulate file deletion
 9765        item.update(cx, |item, _| {
 9766            item.set_has_deleted_file(true);
 9767        });
 9768
 9769        // Emit UpdateTab event
 9770        cx.run_until_parked();
 9771        item.update(cx, |_, cx| {
 9772            cx.emit(ItemEvent::UpdateTab);
 9773        });
 9774
 9775        // Allow any potential close operation to complete
 9776        cx.run_until_parked();
 9777
 9778        // Verify the item remains open (with strikethrough)
 9779        pane.read_with(cx, |pane, _| {
 9780            assert_eq!(
 9781                pane.items().count(),
 9782                1,
 9783                "Item should remain open when close_on_disk_deletion is disabled"
 9784            );
 9785        });
 9786
 9787        // Verify the item shows as deleted
 9788        item.read_with(cx, |item, _| {
 9789            assert!(
 9790                item.has_deleted_file,
 9791                "Item should be marked as having deleted file"
 9792            );
 9793        });
 9794    }
 9795
 9796    /// Tests that dirty files are not automatically closed when deleted from disk,
 9797    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
 9798    /// unsaved changes without being prompted.
 9799    #[gpui::test]
 9800    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
 9801        init_test(cx);
 9802
 9803        // Enable the close_on_file_delete setting
 9804        cx.update_global(|store: &mut SettingsStore, cx| {
 9805            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9806                settings.close_on_file_delete = Some(true);
 9807            });
 9808        });
 9809
 9810        let fs = FakeFs::new(cx.background_executor.clone());
 9811        let project = Project::test(fs, [], cx).await;
 9812        let (workspace, cx) =
 9813            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9814        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9815
 9816        // Create a dirty test item
 9817        let item = cx.new(|cx| {
 9818            TestItem::new(cx)
 9819                .with_dirty(true)
 9820                .with_label("test.txt")
 9821                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9822        });
 9823
 9824        // Add item to workspace
 9825        workspace.update_in(cx, |workspace, window, cx| {
 9826            workspace.add_item(
 9827                pane.clone(),
 9828                Box::new(item.clone()),
 9829                None,
 9830                false,
 9831                false,
 9832                window,
 9833                cx,
 9834            );
 9835        });
 9836
 9837        // Simulate file deletion
 9838        item.update(cx, |item, _| {
 9839            item.set_has_deleted_file(true);
 9840        });
 9841
 9842        // Emit UpdateTab event to trigger the close behavior
 9843        cx.run_until_parked();
 9844        item.update(cx, |_, cx| {
 9845            cx.emit(ItemEvent::UpdateTab);
 9846        });
 9847
 9848        // Allow any potential close operation to complete
 9849        cx.run_until_parked();
 9850
 9851        // Verify the item remains open (dirty files are not auto-closed)
 9852        pane.read_with(cx, |pane, _| {
 9853            assert_eq!(
 9854                pane.items().count(),
 9855                1,
 9856                "Dirty items should not be automatically closed even when file is deleted"
 9857            );
 9858        });
 9859
 9860        // Verify the item is marked as deleted and still dirty
 9861        item.read_with(cx, |item, _| {
 9862            assert!(
 9863                item.has_deleted_file,
 9864                "Item should be marked as having deleted file"
 9865            );
 9866            assert!(item.is_dirty, "Item should still be dirty");
 9867        });
 9868    }
 9869
 9870    /// Tests that navigation history is cleaned up when files are auto-closed
 9871    /// due to deletion from disk.
 9872    #[gpui::test]
 9873    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
 9874        init_test(cx);
 9875
 9876        // Enable the close_on_file_delete setting
 9877        cx.update_global(|store: &mut SettingsStore, cx| {
 9878            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9879                settings.close_on_file_delete = Some(true);
 9880            });
 9881        });
 9882
 9883        let fs = FakeFs::new(cx.background_executor.clone());
 9884        let project = Project::test(fs, [], cx).await;
 9885        let (workspace, cx) =
 9886            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9887        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9888
 9889        // Create test items
 9890        let item1 = cx.new(|cx| {
 9891            TestItem::new(cx)
 9892                .with_label("test1.txt")
 9893                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
 9894        });
 9895        let item1_id = item1.item_id();
 9896
 9897        let item2 = cx.new(|cx| {
 9898            TestItem::new(cx)
 9899                .with_label("test2.txt")
 9900                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
 9901        });
 9902
 9903        // Add items to workspace
 9904        workspace.update_in(cx, |workspace, window, cx| {
 9905            workspace.add_item(
 9906                pane.clone(),
 9907                Box::new(item1.clone()),
 9908                None,
 9909                false,
 9910                false,
 9911                window,
 9912                cx,
 9913            );
 9914            workspace.add_item(
 9915                pane.clone(),
 9916                Box::new(item2.clone()),
 9917                None,
 9918                false,
 9919                false,
 9920                window,
 9921                cx,
 9922            );
 9923        });
 9924
 9925        // Activate item1 to ensure it gets navigation entries
 9926        pane.update_in(cx, |pane, window, cx| {
 9927            pane.activate_item(0, true, true, window, cx);
 9928        });
 9929
 9930        // Switch to item2 and back to create navigation history
 9931        pane.update_in(cx, |pane, window, cx| {
 9932            pane.activate_item(1, true, true, window, cx);
 9933        });
 9934        cx.run_until_parked();
 9935
 9936        pane.update_in(cx, |pane, window, cx| {
 9937            pane.activate_item(0, true, true, window, cx);
 9938        });
 9939        cx.run_until_parked();
 9940
 9941        // Simulate file deletion for item1
 9942        item1.update(cx, |item, _| {
 9943            item.set_has_deleted_file(true);
 9944        });
 9945
 9946        // Emit UpdateTab event to trigger the close behavior
 9947        item1.update(cx, |_, cx| {
 9948            cx.emit(ItemEvent::UpdateTab);
 9949        });
 9950        cx.run_until_parked();
 9951
 9952        // Verify item1 was closed
 9953        pane.read_with(cx, |pane, _| {
 9954            assert_eq!(
 9955                pane.items().count(),
 9956                1,
 9957                "Should have 1 item remaining after auto-close"
 9958            );
 9959        });
 9960
 9961        // Check navigation history after close
 9962        let has_item = pane.read_with(cx, |pane, cx| {
 9963            let mut has_item = false;
 9964            pane.nav_history().for_each_entry(cx, |entry, _| {
 9965                if entry.item.id() == item1_id {
 9966                    has_item = true;
 9967                }
 9968            });
 9969            has_item
 9970        });
 9971
 9972        assert!(
 9973            !has_item,
 9974            "Navigation history should not contain closed item entries"
 9975        );
 9976    }
 9977
 9978    #[gpui::test]
 9979    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
 9980        cx: &mut TestAppContext,
 9981    ) {
 9982        init_test(cx);
 9983
 9984        let fs = FakeFs::new(cx.background_executor.clone());
 9985        let project = Project::test(fs, [], cx).await;
 9986        let (workspace, cx) =
 9987            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9988        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9989
 9990        let dirty_regular_buffer = cx.new(|cx| {
 9991            TestItem::new(cx)
 9992                .with_dirty(true)
 9993                .with_label("1.txt")
 9994                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9995        });
 9996        let dirty_regular_buffer_2 = cx.new(|cx| {
 9997            TestItem::new(cx)
 9998                .with_dirty(true)
 9999                .with_label("2.txt")
10000                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10001        });
10002        let clear_regular_buffer = cx.new(|cx| {
10003            TestItem::new(cx)
10004                .with_label("3.txt")
10005                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10006        });
10007
10008        let dirty_multi_buffer = cx.new(|cx| {
10009            TestItem::new(cx)
10010                .with_dirty(true)
10011                .with_singleton(false)
10012                .with_label("Fake Project Search")
10013                .with_project_items(&[
10014                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10015                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10016                    clear_regular_buffer.read(cx).project_items[0].clone(),
10017                ])
10018        });
10019        workspace.update_in(cx, |workspace, window, cx| {
10020            workspace.add_item(
10021                pane.clone(),
10022                Box::new(dirty_regular_buffer.clone()),
10023                None,
10024                false,
10025                false,
10026                window,
10027                cx,
10028            );
10029            workspace.add_item(
10030                pane.clone(),
10031                Box::new(dirty_regular_buffer_2.clone()),
10032                None,
10033                false,
10034                false,
10035                window,
10036                cx,
10037            );
10038            workspace.add_item(
10039                pane.clone(),
10040                Box::new(dirty_multi_buffer.clone()),
10041                None,
10042                false,
10043                false,
10044                window,
10045                cx,
10046            );
10047        });
10048
10049        pane.update_in(cx, |pane, window, cx| {
10050            pane.activate_item(2, true, true, window, cx);
10051            assert_eq!(
10052                pane.active_item().unwrap().item_id(),
10053                dirty_multi_buffer.item_id(),
10054                "Should select the multi buffer in the pane"
10055            );
10056        });
10057        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10058            pane.close_active_item(
10059                &CloseActiveItem {
10060                    save_intent: None,
10061                    close_pinned: false,
10062                },
10063                window,
10064                cx,
10065            )
10066        });
10067        cx.background_executor.run_until_parked();
10068        assert!(
10069            !cx.has_pending_prompt(),
10070            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10071        );
10072        close_multi_buffer_task
10073            .await
10074            .expect("Closing multi buffer failed");
10075        pane.update(cx, |pane, cx| {
10076            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10077            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10078            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10079            assert_eq!(
10080                pane.items()
10081                    .map(|item| item.item_id())
10082                    .sorted()
10083                    .collect::<Vec<_>>(),
10084                vec![
10085                    dirty_regular_buffer.item_id(),
10086                    dirty_regular_buffer_2.item_id(),
10087                ],
10088                "Should have no multi buffer left in the pane"
10089            );
10090            assert!(dirty_regular_buffer.read(cx).is_dirty);
10091            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10092        });
10093    }
10094
10095    #[gpui::test]
10096    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10097        init_test(cx);
10098        let fs = FakeFs::new(cx.executor());
10099        let project = Project::test(fs, [], cx).await;
10100        let (workspace, cx) =
10101            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10102
10103        // Add a new panel to the right dock, opening the dock and setting the
10104        // focus to the new panel.
10105        let panel = workspace.update_in(cx, |workspace, window, cx| {
10106            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10107            workspace.add_panel(panel.clone(), window, cx);
10108
10109            workspace
10110                .right_dock()
10111                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10112
10113            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10114
10115            panel
10116        });
10117
10118        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10119        // panel to the next valid position which, in this case, is the left
10120        // dock.
10121        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10122        workspace.update(cx, |workspace, cx| {
10123            assert!(workspace.left_dock().read(cx).is_open());
10124            assert_eq!(panel.read(cx).position, DockPosition::Left);
10125        });
10126
10127        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10128        // panel to the next valid position which, in this case, is the bottom
10129        // dock.
10130        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10131        workspace.update(cx, |workspace, cx| {
10132            assert!(workspace.bottom_dock().read(cx).is_open());
10133            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10134        });
10135
10136        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10137        // around moving the panel to its initial position, the right dock.
10138        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10139        workspace.update(cx, |workspace, cx| {
10140            assert!(workspace.right_dock().read(cx).is_open());
10141            assert_eq!(panel.read(cx).position, DockPosition::Right);
10142        });
10143
10144        // Remove focus from the panel, ensuring that, if the panel is not
10145        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10146        // the panel's position, so the panel is still in the right dock.
10147        workspace.update_in(cx, |workspace, window, cx| {
10148            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10149        });
10150
10151        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10152        workspace.update(cx, |workspace, cx| {
10153            assert!(workspace.right_dock().read(cx).is_open());
10154            assert_eq!(panel.read(cx).position, DockPosition::Right);
10155        });
10156    }
10157
10158    #[gpui::test]
10159    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10160        init_test(cx);
10161
10162        let fs = FakeFs::new(cx.executor());
10163        let project = Project::test(fs, [], cx).await;
10164        let (workspace, cx) =
10165            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10166
10167        let item_1 = cx.new(|cx| {
10168            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10169        });
10170        workspace.update_in(cx, |workspace, window, cx| {
10171            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
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            workspace.move_item_to_pane_at_index(
10182                &MoveItemToPane {
10183                    destination: 3,
10184                    focus: true,
10185                    clone: false,
10186                },
10187                window,
10188                cx,
10189            );
10190
10191            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10192            assert_eq!(
10193                pane_items_paths(&workspace.active_pane, cx),
10194                vec!["first.txt".to_string()],
10195                "Single item was not moved anywhere"
10196            );
10197        });
10198
10199        let item_2 = cx.new(|cx| {
10200            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10201        });
10202        workspace.update_in(cx, |workspace, window, cx| {
10203            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10204            assert_eq!(
10205                pane_items_paths(&workspace.panes[0], cx),
10206                vec!["first.txt".to_string(), "second.txt".to_string()],
10207            );
10208            workspace.move_item_to_pane_in_direction(
10209                &MoveItemToPaneInDirection {
10210                    direction: SplitDirection::Right,
10211                    focus: true,
10212                    clone: false,
10213                },
10214                window,
10215                cx,
10216            );
10217
10218            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10219            assert_eq!(
10220                pane_items_paths(&workspace.panes[0], 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                "New item should have been moved to the new pane"
10228            );
10229        });
10230
10231        let item_3 = cx.new(|cx| {
10232            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10233        });
10234        workspace.update_in(cx, |workspace, window, cx| {
10235            let original_pane = workspace.panes[0].clone();
10236            workspace.set_active_pane(&original_pane, window, cx);
10237            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10238            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10239            assert_eq!(
10240                pane_items_paths(&workspace.active_pane, cx),
10241                vec!["first.txt".to_string(), "third.txt".to_string()],
10242                "New pane should be ready to move one item out"
10243            );
10244
10245            workspace.move_item_to_pane_at_index(
10246                &MoveItemToPane {
10247                    destination: 3,
10248                    focus: true,
10249                    clone: false,
10250                },
10251                window,
10252                cx,
10253            );
10254            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10255            assert_eq!(
10256                pane_items_paths(&workspace.active_pane, cx),
10257                vec!["first.txt".to_string()],
10258                "After moving, one item should be left in the original pane"
10259            );
10260            assert_eq!(
10261                pane_items_paths(&workspace.panes[1], cx),
10262                vec!["second.txt".to_string()],
10263                "Previously created pane should be unchanged"
10264            );
10265            assert_eq!(
10266                pane_items_paths(&workspace.panes[2], cx),
10267                vec!["third.txt".to_string()],
10268                "New item should have been moved to the new pane"
10269            );
10270        });
10271    }
10272
10273    #[gpui::test]
10274    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10275        init_test(cx);
10276
10277        let fs = FakeFs::new(cx.executor());
10278        let project = Project::test(fs, [], cx).await;
10279        let (workspace, cx) =
10280            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10281
10282        let item_1 = cx.new(|cx| {
10283            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10284        });
10285        workspace.update_in(cx, |workspace, window, cx| {
10286            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10287            workspace.move_item_to_pane_in_direction(
10288                &MoveItemToPaneInDirection {
10289                    direction: SplitDirection::Right,
10290                    focus: true,
10291                    clone: true,
10292                },
10293                window,
10294                cx,
10295            );
10296            workspace.move_item_to_pane_at_index(
10297                &MoveItemToPane {
10298                    destination: 3,
10299                    focus: true,
10300                    clone: true,
10301                },
10302                window,
10303                cx,
10304            );
10305
10306            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10307            for pane in workspace.panes() {
10308                assert_eq!(
10309                    pane_items_paths(pane, cx),
10310                    vec!["first.txt".to_string()],
10311                    "Single item exists in all panes"
10312                );
10313            }
10314        });
10315
10316        // verify that the active pane has been updated after waiting for the
10317        // pane focus event to fire and resolve
10318        workspace.read_with(cx, |workspace, _app| {
10319            assert_eq!(
10320                workspace.active_pane(),
10321                &workspace.panes[2],
10322                "The third pane should be the active one: {:?}",
10323                workspace.panes
10324            );
10325        })
10326    }
10327
10328    mod register_project_item_tests {
10329
10330        use super::*;
10331
10332        // View
10333        struct TestPngItemView {
10334            focus_handle: FocusHandle,
10335        }
10336        // Model
10337        struct TestPngItem {}
10338
10339        impl project::ProjectItem for TestPngItem {
10340            fn try_open(
10341                _project: &Entity<Project>,
10342                path: &ProjectPath,
10343                cx: &mut App,
10344            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10345                if path.path.extension().unwrap() == "png" {
10346                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10347                } else {
10348                    None
10349                }
10350            }
10351
10352            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10353                None
10354            }
10355
10356            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10357                None
10358            }
10359
10360            fn is_dirty(&self) -> bool {
10361                false
10362            }
10363        }
10364
10365        impl Item for TestPngItemView {
10366            type Event = ();
10367            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10368                "".into()
10369            }
10370        }
10371        impl EventEmitter<()> for TestPngItemView {}
10372        impl Focusable for TestPngItemView {
10373            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10374                self.focus_handle.clone()
10375            }
10376        }
10377
10378        impl Render for TestPngItemView {
10379            fn render(
10380                &mut self,
10381                _window: &mut Window,
10382                _cx: &mut Context<Self>,
10383            ) -> impl IntoElement {
10384                Empty
10385            }
10386        }
10387
10388        impl ProjectItem for TestPngItemView {
10389            type Item = TestPngItem;
10390
10391            fn for_project_item(
10392                _project: Entity<Project>,
10393                _pane: Option<&Pane>,
10394                _item: Entity<Self::Item>,
10395                _: &mut Window,
10396                cx: &mut Context<Self>,
10397            ) -> Self
10398            where
10399                Self: Sized,
10400            {
10401                Self {
10402                    focus_handle: cx.focus_handle(),
10403                }
10404            }
10405        }
10406
10407        // View
10408        struct TestIpynbItemView {
10409            focus_handle: FocusHandle,
10410        }
10411        // Model
10412        struct TestIpynbItem {}
10413
10414        impl project::ProjectItem for TestIpynbItem {
10415            fn try_open(
10416                _project: &Entity<Project>,
10417                path: &ProjectPath,
10418                cx: &mut App,
10419            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10420                if path.path.extension().unwrap() == "ipynb" {
10421                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
10422                } else {
10423                    None
10424                }
10425            }
10426
10427            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10428                None
10429            }
10430
10431            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10432                None
10433            }
10434
10435            fn is_dirty(&self) -> bool {
10436                false
10437            }
10438        }
10439
10440        impl Item for TestIpynbItemView {
10441            type Event = ();
10442            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10443                "".into()
10444            }
10445        }
10446        impl EventEmitter<()> for TestIpynbItemView {}
10447        impl Focusable for TestIpynbItemView {
10448            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10449                self.focus_handle.clone()
10450            }
10451        }
10452
10453        impl Render for TestIpynbItemView {
10454            fn render(
10455                &mut self,
10456                _window: &mut Window,
10457                _cx: &mut Context<Self>,
10458            ) -> impl IntoElement {
10459                Empty
10460            }
10461        }
10462
10463        impl ProjectItem for TestIpynbItemView {
10464            type Item = TestIpynbItem;
10465
10466            fn for_project_item(
10467                _project: Entity<Project>,
10468                _pane: Option<&Pane>,
10469                _item: Entity<Self::Item>,
10470                _: &mut Window,
10471                cx: &mut Context<Self>,
10472            ) -> Self
10473            where
10474                Self: Sized,
10475            {
10476                Self {
10477                    focus_handle: cx.focus_handle(),
10478                }
10479            }
10480        }
10481
10482        struct TestAlternatePngItemView {
10483            focus_handle: FocusHandle,
10484        }
10485
10486        impl Item for TestAlternatePngItemView {
10487            type Event = ();
10488            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10489                "".into()
10490            }
10491        }
10492
10493        impl EventEmitter<()> for TestAlternatePngItemView {}
10494        impl Focusable for TestAlternatePngItemView {
10495            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10496                self.focus_handle.clone()
10497            }
10498        }
10499
10500        impl Render for TestAlternatePngItemView {
10501            fn render(
10502                &mut self,
10503                _window: &mut Window,
10504                _cx: &mut Context<Self>,
10505            ) -> impl IntoElement {
10506                Empty
10507            }
10508        }
10509
10510        impl ProjectItem for TestAlternatePngItemView {
10511            type Item = TestPngItem;
10512
10513            fn for_project_item(
10514                _project: Entity<Project>,
10515                _pane: Option<&Pane>,
10516                _item: Entity<Self::Item>,
10517                _: &mut Window,
10518                cx: &mut Context<Self>,
10519            ) -> Self
10520            where
10521                Self: Sized,
10522            {
10523                Self {
10524                    focus_handle: cx.focus_handle(),
10525                }
10526            }
10527        }
10528
10529        #[gpui::test]
10530        async fn test_register_project_item(cx: &mut TestAppContext) {
10531            init_test(cx);
10532
10533            cx.update(|cx| {
10534                register_project_item::<TestPngItemView>(cx);
10535                register_project_item::<TestIpynbItemView>(cx);
10536            });
10537
10538            let fs = FakeFs::new(cx.executor());
10539            fs.insert_tree(
10540                "/root1",
10541                json!({
10542                    "one.png": "BINARYDATAHERE",
10543                    "two.ipynb": "{ totally a notebook }",
10544                    "three.txt": "editing text, sure why not?"
10545                }),
10546            )
10547            .await;
10548
10549            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10550            let (workspace, cx) =
10551                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10552
10553            let worktree_id = project.update(cx, |project, cx| {
10554                project.worktrees(cx).next().unwrap().read(cx).id()
10555            });
10556
10557            let handle = workspace
10558                .update_in(cx, |workspace, window, cx| {
10559                    let project_path = (worktree_id, "one.png");
10560                    workspace.open_path(project_path, None, true, window, cx)
10561                })
10562                .await
10563                .unwrap();
10564
10565            // Now we can check if the handle we got back errored or not
10566            assert_eq!(
10567                handle.to_any().entity_type(),
10568                TypeId::of::<TestPngItemView>()
10569            );
10570
10571            let handle = workspace
10572                .update_in(cx, |workspace, window, cx| {
10573                    let project_path = (worktree_id, "two.ipynb");
10574                    workspace.open_path(project_path, None, true, window, cx)
10575                })
10576                .await
10577                .unwrap();
10578
10579            assert_eq!(
10580                handle.to_any().entity_type(),
10581                TypeId::of::<TestIpynbItemView>()
10582            );
10583
10584            let handle = workspace
10585                .update_in(cx, |workspace, window, cx| {
10586                    let project_path = (worktree_id, "three.txt");
10587                    workspace.open_path(project_path, None, true, window, cx)
10588                })
10589                .await;
10590            assert!(handle.is_err());
10591        }
10592
10593        #[gpui::test]
10594        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
10595            init_test(cx);
10596
10597            cx.update(|cx| {
10598                register_project_item::<TestPngItemView>(cx);
10599                register_project_item::<TestAlternatePngItemView>(cx);
10600            });
10601
10602            let fs = FakeFs::new(cx.executor());
10603            fs.insert_tree(
10604                "/root1",
10605                json!({
10606                    "one.png": "BINARYDATAHERE",
10607                    "two.ipynb": "{ totally a notebook }",
10608                    "three.txt": "editing text, sure why not?"
10609                }),
10610            )
10611            .await;
10612            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10613            let (workspace, cx) =
10614                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10615            let worktree_id = project.update(cx, |project, cx| {
10616                project.worktrees(cx).next().unwrap().read(cx).id()
10617            });
10618
10619            let handle = workspace
10620                .update_in(cx, |workspace, window, cx| {
10621                    let project_path = (worktree_id, "one.png");
10622                    workspace.open_path(project_path, None, true, window, cx)
10623                })
10624                .await
10625                .unwrap();
10626
10627            // This _must_ be the second item registered
10628            assert_eq!(
10629                handle.to_any().entity_type(),
10630                TypeId::of::<TestAlternatePngItemView>()
10631            );
10632
10633            let handle = workspace
10634                .update_in(cx, |workspace, window, cx| {
10635                    let project_path = (worktree_id, "three.txt");
10636                    workspace.open_path(project_path, None, true, window, cx)
10637                })
10638                .await;
10639            assert!(handle.is_err());
10640        }
10641    }
10642
10643    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
10644        pane.read(cx)
10645            .items()
10646            .flat_map(|item| {
10647                item.project_paths(cx)
10648                    .into_iter()
10649                    .map(|path| path.path.to_string_lossy().to_string())
10650            })
10651            .collect()
10652    }
10653
10654    pub fn init_test(cx: &mut TestAppContext) {
10655        cx.update(|cx| {
10656            let settings_store = SettingsStore::test(cx);
10657            cx.set_global(settings_store);
10658            theme::init(theme::LoadThemes::JustBase, cx);
10659            language::init(cx);
10660            crate::init_settings(cx);
10661            Project::init_settings(cx);
10662        });
10663    }
10664
10665    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
10666        let item = TestProjectItem::new(id, path, cx);
10667        item.update(cx, |item, _| {
10668            item.is_dirty = true;
10669        });
10670        item
10671    }
10672}