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