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::{RunAction, 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                        .log_err()?;
 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                            .log_err()?
 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                let result = 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            result
 3129        })
 3130    }
 3131
 3132    pub fn split_path(
 3133        &mut self,
 3134        path: impl Into<ProjectPath>,
 3135        window: &mut Window,
 3136        cx: &mut Context<Self>,
 3137    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3138        self.split_path_preview(path, false, None, window, cx)
 3139    }
 3140
 3141    pub fn split_path_preview(
 3142        &mut self,
 3143        path: impl Into<ProjectPath>,
 3144        allow_preview: bool,
 3145        split_direction: Option<SplitDirection>,
 3146        window: &mut Window,
 3147        cx: &mut Context<Self>,
 3148    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3149        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3150            self.panes
 3151                .first()
 3152                .expect("There must be an active pane")
 3153                .downgrade()
 3154        });
 3155
 3156        if let Member::Pane(center_pane) = &self.center.root {
 3157            if center_pane.read(cx).items_len() == 0 {
 3158                return self.open_path(path, Some(pane), true, window, cx);
 3159            }
 3160        }
 3161
 3162        let project_path = path.into();
 3163        let task = self.load_path(project_path.clone(), window, cx);
 3164        cx.spawn_in(window, async move |this, cx| {
 3165            let (project_entry_id, build_item) = task.await?;
 3166            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3167                let pane = pane.upgrade()?;
 3168                let new_pane = this.split_pane(
 3169                    pane,
 3170                    split_direction.unwrap_or(SplitDirection::Right),
 3171                    window,
 3172                    cx,
 3173                );
 3174                new_pane.update(cx, |new_pane, cx| {
 3175                    Some(new_pane.open_item(
 3176                        project_entry_id,
 3177                        project_path,
 3178                        true,
 3179                        allow_preview,
 3180                        true,
 3181                        None,
 3182                        window,
 3183                        cx,
 3184                        build_item,
 3185                    ))
 3186                })
 3187            })
 3188            .map(|option| option.context("pane was dropped"))?
 3189        })
 3190    }
 3191
 3192    fn load_path(
 3193        &mut self,
 3194        path: ProjectPath,
 3195        window: &mut Window,
 3196        cx: &mut App,
 3197    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3198        let project = self.project().clone();
 3199        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3200        registry.open_path(&project, &path, window, cx)
 3201    }
 3202
 3203    pub fn find_project_item<T>(
 3204        &self,
 3205        pane: &Entity<Pane>,
 3206        project_item: &Entity<T::Item>,
 3207        cx: &App,
 3208    ) -> Option<Entity<T>>
 3209    where
 3210        T: ProjectItem,
 3211    {
 3212        use project::ProjectItem as _;
 3213        let project_item = project_item.read(cx);
 3214        let entry_id = project_item.entry_id(cx);
 3215        let project_path = project_item.project_path(cx);
 3216
 3217        let mut item = None;
 3218        if let Some(entry_id) = entry_id {
 3219            item = pane.read(cx).item_for_entry(entry_id, cx);
 3220        }
 3221        if item.is_none() {
 3222            if let Some(project_path) = project_path {
 3223                item = pane.read(cx).item_for_path(project_path, cx);
 3224            }
 3225        }
 3226
 3227        item.and_then(|item| item.downcast::<T>())
 3228    }
 3229
 3230    pub fn is_project_item_open<T>(
 3231        &self,
 3232        pane: &Entity<Pane>,
 3233        project_item: &Entity<T::Item>,
 3234        cx: &App,
 3235    ) -> bool
 3236    where
 3237        T: ProjectItem,
 3238    {
 3239        self.find_project_item::<T>(pane, project_item, cx)
 3240            .is_some()
 3241    }
 3242
 3243    pub fn open_project_item<T>(
 3244        &mut self,
 3245        pane: Entity<Pane>,
 3246        project_item: Entity<T::Item>,
 3247        activate_pane: bool,
 3248        focus_item: bool,
 3249        window: &mut Window,
 3250        cx: &mut Context<Self>,
 3251    ) -> Entity<T>
 3252    where
 3253        T: ProjectItem,
 3254    {
 3255        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3256            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3257            return item;
 3258        }
 3259
 3260        let item = pane.update(cx, |pane, cx| {
 3261            cx.new(|cx| {
 3262                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3263            })
 3264        });
 3265        let item_id = item.item_id();
 3266        let mut destination_index = None;
 3267        pane.update(cx, |pane, cx| {
 3268            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
 3269                if let Some(preview_item_id) = pane.preview_item_id() {
 3270                    if preview_item_id != item_id {
 3271                        destination_index = pane.close_current_preview_item(window, cx);
 3272                    }
 3273                }
 3274            }
 3275            pane.set_preview_item_id(Some(item.item_id()), cx)
 3276        });
 3277
 3278        self.add_item(
 3279            pane,
 3280            Box::new(item.clone()),
 3281            destination_index,
 3282            activate_pane,
 3283            focus_item,
 3284            window,
 3285            cx,
 3286        );
 3287        item
 3288    }
 3289
 3290    pub fn open_shared_screen(
 3291        &mut self,
 3292        peer_id: PeerId,
 3293        window: &mut Window,
 3294        cx: &mut Context<Self>,
 3295    ) {
 3296        if let Some(shared_screen) =
 3297            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3298        {
 3299            self.active_pane.update(cx, |pane, cx| {
 3300                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3301            });
 3302        }
 3303    }
 3304
 3305    pub fn activate_item(
 3306        &mut self,
 3307        item: &dyn ItemHandle,
 3308        activate_pane: bool,
 3309        focus_item: bool,
 3310        window: &mut Window,
 3311        cx: &mut App,
 3312    ) -> bool {
 3313        let result = self.panes.iter().find_map(|pane| {
 3314            pane.read(cx)
 3315                .index_for_item(item)
 3316                .map(|ix| (pane.clone(), ix))
 3317        });
 3318        if let Some((pane, ix)) = result {
 3319            pane.update(cx, |pane, cx| {
 3320                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3321            });
 3322            true
 3323        } else {
 3324            false
 3325        }
 3326    }
 3327
 3328    fn activate_pane_at_index(
 3329        &mut self,
 3330        action: &ActivatePane,
 3331        window: &mut Window,
 3332        cx: &mut Context<Self>,
 3333    ) {
 3334        let panes = self.center.panes();
 3335        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3336            window.focus(&pane.focus_handle(cx));
 3337        } else {
 3338            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx);
 3339        }
 3340    }
 3341
 3342    fn move_item_to_pane_at_index(
 3343        &mut self,
 3344        action: &MoveItemToPane,
 3345        window: &mut Window,
 3346        cx: &mut Context<Self>,
 3347    ) {
 3348        let panes = self.center.panes();
 3349        let destination = match panes.get(action.destination) {
 3350            Some(&destination) => destination.clone(),
 3351            None => {
 3352                if self.active_pane.read(cx).items_len() < 2 {
 3353                    return;
 3354                }
 3355                let direction = SplitDirection::Right;
 3356                let split_off_pane = self
 3357                    .find_pane_in_direction(direction, cx)
 3358                    .unwrap_or_else(|| self.active_pane.clone());
 3359                let new_pane = self.add_pane(window, cx);
 3360                if self
 3361                    .center
 3362                    .split(&split_off_pane, &new_pane, direction)
 3363                    .log_err()
 3364                    .is_none()
 3365                {
 3366                    return;
 3367                };
 3368                new_pane
 3369            }
 3370        };
 3371
 3372        move_active_item(
 3373            &self.active_pane,
 3374            &destination,
 3375            action.focus,
 3376            true,
 3377            window,
 3378            cx,
 3379        )
 3380    }
 3381
 3382    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3383        let panes = self.center.panes();
 3384        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3385            let next_ix = (ix + 1) % panes.len();
 3386            let next_pane = panes[next_ix].clone();
 3387            window.focus(&next_pane.focus_handle(cx));
 3388        }
 3389    }
 3390
 3391    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3392        let panes = self.center.panes();
 3393        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3394            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3395            let prev_pane = panes[prev_ix].clone();
 3396            window.focus(&prev_pane.focus_handle(cx));
 3397        }
 3398    }
 3399
 3400    pub fn activate_pane_in_direction(
 3401        &mut self,
 3402        direction: SplitDirection,
 3403        window: &mut Window,
 3404        cx: &mut App,
 3405    ) {
 3406        use ActivateInDirectionTarget as Target;
 3407        enum Origin {
 3408            LeftDock,
 3409            RightDock,
 3410            BottomDock,
 3411            Center,
 3412        }
 3413
 3414        let origin: Origin = [
 3415            (&self.left_dock, Origin::LeftDock),
 3416            (&self.right_dock, Origin::RightDock),
 3417            (&self.bottom_dock, Origin::BottomDock),
 3418        ]
 3419        .into_iter()
 3420        .find_map(|(dock, origin)| {
 3421            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3422                Some(origin)
 3423            } else {
 3424                None
 3425            }
 3426        })
 3427        .unwrap_or(Origin::Center);
 3428
 3429        let get_last_active_pane = || {
 3430            let pane = self
 3431                .last_active_center_pane
 3432                .clone()
 3433                .unwrap_or_else(|| {
 3434                    self.panes
 3435                        .first()
 3436                        .expect("There must be an active pane")
 3437                        .downgrade()
 3438                })
 3439                .upgrade()?;
 3440            (pane.read(cx).items_len() != 0).then_some(pane)
 3441        };
 3442
 3443        let try_dock =
 3444            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3445
 3446        let target = match (origin, direction) {
 3447            // We're in the center, so we first try to go to a different pane,
 3448            // otherwise try to go to a dock.
 3449            (Origin::Center, direction) => {
 3450                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3451                    Some(Target::Pane(pane))
 3452                } else {
 3453                    match direction {
 3454                        SplitDirection::Up => None,
 3455                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3456                        SplitDirection::Left => try_dock(&self.left_dock),
 3457                        SplitDirection::Right => try_dock(&self.right_dock),
 3458                    }
 3459                }
 3460            }
 3461
 3462            (Origin::LeftDock, SplitDirection::Right) => {
 3463                if let Some(last_active_pane) = get_last_active_pane() {
 3464                    Some(Target::Pane(last_active_pane))
 3465                } else {
 3466                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3467                }
 3468            }
 3469
 3470            (Origin::LeftDock, SplitDirection::Down)
 3471            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3472
 3473            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3474            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3475            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3476
 3477            (Origin::RightDock, SplitDirection::Left) => {
 3478                if let Some(last_active_pane) = get_last_active_pane() {
 3479                    Some(Target::Pane(last_active_pane))
 3480                } else {
 3481                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3482                }
 3483            }
 3484
 3485            _ => None,
 3486        };
 3487
 3488        match target {
 3489            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3490                let pane = pane.read(cx);
 3491                if let Some(item) = pane.active_item() {
 3492                    item.item_focus_handle(cx).focus(window);
 3493                } else {
 3494                    log::error!(
 3495                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3496                    );
 3497                }
 3498            }
 3499            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3500                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3501                window.defer(cx, move |window, cx| {
 3502                    let dock = dock.read(cx);
 3503                    if let Some(panel) = dock.active_panel() {
 3504                        panel.panel_focus_handle(cx).focus(window);
 3505                    } else {
 3506                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3507                    }
 3508                })
 3509            }
 3510            None => {}
 3511        }
 3512    }
 3513
 3514    pub fn move_item_to_pane_in_direction(
 3515        &mut self,
 3516        action: &MoveItemToPaneInDirection,
 3517        window: &mut Window,
 3518        cx: &mut Context<Self>,
 3519    ) {
 3520        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3521            Some(destination) => destination,
 3522            None => {
 3523                if self.active_pane.read(cx).items_len() < 2 {
 3524                    return;
 3525                }
 3526                let new_pane = self.add_pane(window, cx);
 3527                if self
 3528                    .center
 3529                    .split(&self.active_pane, &new_pane, action.direction)
 3530                    .log_err()
 3531                    .is_none()
 3532                {
 3533                    return;
 3534                };
 3535                new_pane
 3536            }
 3537        };
 3538
 3539        move_active_item(
 3540            &self.active_pane,
 3541            &destination,
 3542            action.focus,
 3543            true,
 3544            window,
 3545            cx,
 3546        );
 3547    }
 3548
 3549    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3550        self.center.bounding_box_for_pane(pane)
 3551    }
 3552
 3553    pub fn find_pane_in_direction(
 3554        &mut self,
 3555        direction: SplitDirection,
 3556        cx: &App,
 3557    ) -> Option<Entity<Pane>> {
 3558        self.center
 3559            .find_pane_in_direction(&self.active_pane, direction, cx)
 3560            .cloned()
 3561    }
 3562
 3563    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3564        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3565            self.center.swap(&self.active_pane, &to);
 3566            cx.notify();
 3567        }
 3568    }
 3569
 3570    pub fn resize_pane(
 3571        &mut self,
 3572        axis: gpui::Axis,
 3573        amount: Pixels,
 3574        window: &mut Window,
 3575        cx: &mut Context<Self>,
 3576    ) {
 3577        let docks = self.all_docks();
 3578        let active_dock = docks
 3579            .into_iter()
 3580            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3581
 3582        if let Some(dock) = active_dock {
 3583            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3584                return;
 3585            };
 3586            match dock.read(cx).position() {
 3587                DockPosition::Left => resize_left_dock(panel_size + amount, self, window, cx),
 3588                DockPosition::Bottom => resize_bottom_dock(panel_size + amount, self, window, cx),
 3589                DockPosition::Right => resize_right_dock(panel_size + amount, self, window, cx),
 3590            }
 3591        } else {
 3592            self.center
 3593                .resize(&self.active_pane, axis, amount, &self.bounds);
 3594        }
 3595        cx.notify();
 3596    }
 3597
 3598    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 3599        self.center.reset_pane_sizes();
 3600        cx.notify();
 3601    }
 3602
 3603    fn handle_pane_focused(
 3604        &mut self,
 3605        pane: Entity<Pane>,
 3606        window: &mut Window,
 3607        cx: &mut Context<Self>,
 3608    ) {
 3609        // This is explicitly hoisted out of the following check for pane identity as
 3610        // terminal panel panes are not registered as a center panes.
 3611        self.status_bar.update(cx, |status_bar, cx| {
 3612            status_bar.set_active_pane(&pane, window, cx);
 3613        });
 3614        if self.active_pane != pane {
 3615            self.set_active_pane(&pane, window, cx);
 3616        }
 3617
 3618        if self.last_active_center_pane.is_none() {
 3619            self.last_active_center_pane = Some(pane.downgrade());
 3620        }
 3621
 3622        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 3623        if pane.read(cx).is_zoomed() {
 3624            self.zoomed = Some(pane.downgrade().into());
 3625        } else {
 3626            self.zoomed = None;
 3627        }
 3628        self.zoomed_position = None;
 3629        cx.emit(Event::ZoomChanged);
 3630        self.update_active_view_for_followers(window, cx);
 3631        pane.update(cx, |pane, _| {
 3632            pane.track_alternate_file_items();
 3633        });
 3634
 3635        cx.notify();
 3636    }
 3637
 3638    fn set_active_pane(
 3639        &mut self,
 3640        pane: &Entity<Pane>,
 3641        window: &mut Window,
 3642        cx: &mut Context<Self>,
 3643    ) {
 3644        self.active_pane = pane.clone();
 3645        self.active_item_path_changed(window, cx);
 3646        self.last_active_center_pane = Some(pane.downgrade());
 3647    }
 3648
 3649    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3650        self.update_active_view_for_followers(window, cx);
 3651    }
 3652
 3653    fn handle_pane_event(
 3654        &mut self,
 3655        pane: &Entity<Pane>,
 3656        event: &pane::Event,
 3657        window: &mut Window,
 3658        cx: &mut Context<Self>,
 3659    ) {
 3660        let mut serialize_workspace = true;
 3661        match event {
 3662            pane::Event::AddItem { item } => {
 3663                item.added_to_pane(self, pane.clone(), window, cx);
 3664                cx.emit(Event::ItemAdded {
 3665                    item: item.boxed_clone(),
 3666                });
 3667            }
 3668            pane::Event::Split(direction) => {
 3669                self.split_and_clone(pane.clone(), *direction, window, cx);
 3670            }
 3671            pane::Event::JoinIntoNext => {
 3672                self.join_pane_into_next(pane.clone(), window, cx);
 3673            }
 3674            pane::Event::JoinAll => {
 3675                self.join_all_panes(window, cx);
 3676            }
 3677            pane::Event::Remove { focus_on_pane } => {
 3678                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 3679            }
 3680            pane::Event::ActivateItem {
 3681                local,
 3682                focus_changed,
 3683            } => {
 3684                cx.on_next_frame(window, |_, window, _| {
 3685                    window.invalidate_character_coordinates();
 3686                });
 3687
 3688                pane.update(cx, |pane, _| {
 3689                    pane.track_alternate_file_items();
 3690                });
 3691                if *local {
 3692                    self.unfollow_in_pane(&pane, window, cx);
 3693                }
 3694                if pane == self.active_pane() {
 3695                    self.active_item_path_changed(window, cx);
 3696                    self.update_active_view_for_followers(window, cx);
 3697                }
 3698                serialize_workspace = *focus_changed || pane != self.active_pane();
 3699            }
 3700            pane::Event::UserSavedItem { item, save_intent } => {
 3701                cx.emit(Event::UserSavedItem {
 3702                    pane: pane.downgrade(),
 3703                    item: item.boxed_clone(),
 3704                    save_intent: *save_intent,
 3705                });
 3706                serialize_workspace = false;
 3707            }
 3708            pane::Event::ChangeItemTitle => {
 3709                if *pane == self.active_pane {
 3710                    self.active_item_path_changed(window, cx);
 3711                }
 3712                serialize_workspace = false;
 3713            }
 3714            pane::Event::RemoveItem { .. } => {}
 3715            pane::Event::RemovedItem { item } => {
 3716                cx.emit(Event::ActiveItemChanged);
 3717                self.update_window_edited(window, cx);
 3718                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id()) {
 3719                    if entry.get().entity_id() == pane.entity_id() {
 3720                        entry.remove();
 3721                    }
 3722                }
 3723            }
 3724            pane::Event::Focus => {
 3725                cx.on_next_frame(window, |_, window, _| {
 3726                    window.invalidate_character_coordinates();
 3727                });
 3728                self.handle_pane_focused(pane.clone(), window, cx);
 3729            }
 3730            pane::Event::ZoomIn => {
 3731                if *pane == self.active_pane {
 3732                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 3733                    if pane.read(cx).has_focus(window, cx) {
 3734                        self.zoomed = Some(pane.downgrade().into());
 3735                        self.zoomed_position = None;
 3736                        cx.emit(Event::ZoomChanged);
 3737                    }
 3738                    cx.notify();
 3739                }
 3740            }
 3741            pane::Event::ZoomOut => {
 3742                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3743                if self.zoomed_position.is_none() {
 3744                    self.zoomed = None;
 3745                    cx.emit(Event::ZoomChanged);
 3746                }
 3747                cx.notify();
 3748            }
 3749            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 3750        }
 3751
 3752        if serialize_workspace {
 3753            self.serialize_workspace(window, cx);
 3754        }
 3755    }
 3756
 3757    pub fn unfollow_in_pane(
 3758        &mut self,
 3759        pane: &Entity<Pane>,
 3760        window: &mut Window,
 3761        cx: &mut Context<Workspace>,
 3762    ) -> Option<CollaboratorId> {
 3763        let leader_id = self.leader_for_pane(pane)?;
 3764        self.unfollow(leader_id, window, cx);
 3765        Some(leader_id)
 3766    }
 3767
 3768    pub fn split_pane(
 3769        &mut self,
 3770        pane_to_split: Entity<Pane>,
 3771        split_direction: SplitDirection,
 3772        window: &mut Window,
 3773        cx: &mut Context<Self>,
 3774    ) -> Entity<Pane> {
 3775        let new_pane = self.add_pane(window, cx);
 3776        self.center
 3777            .split(&pane_to_split, &new_pane, split_direction)
 3778            .unwrap();
 3779        cx.notify();
 3780        new_pane
 3781    }
 3782
 3783    pub fn split_and_clone(
 3784        &mut self,
 3785        pane: Entity<Pane>,
 3786        direction: SplitDirection,
 3787        window: &mut Window,
 3788        cx: &mut Context<Self>,
 3789    ) -> Option<Entity<Pane>> {
 3790        let item = pane.read(cx).active_item()?;
 3791        let maybe_pane_handle =
 3792            if let Some(clone) = item.clone_on_split(self.database_id(), window, cx) {
 3793                let new_pane = self.add_pane(window, cx);
 3794                new_pane.update(cx, |pane, cx| {
 3795                    pane.add_item(clone, true, true, None, window, cx)
 3796                });
 3797                self.center.split(&pane, &new_pane, direction).unwrap();
 3798                Some(new_pane)
 3799            } else {
 3800                None
 3801            };
 3802        cx.notify();
 3803        maybe_pane_handle
 3804    }
 3805
 3806    pub fn split_pane_with_item(
 3807        &mut self,
 3808        pane_to_split: WeakEntity<Pane>,
 3809        split_direction: SplitDirection,
 3810        from: WeakEntity<Pane>,
 3811        item_id_to_move: EntityId,
 3812        window: &mut Window,
 3813        cx: &mut Context<Self>,
 3814    ) {
 3815        let Some(pane_to_split) = pane_to_split.upgrade() else {
 3816            return;
 3817        };
 3818        let Some(from) = from.upgrade() else {
 3819            return;
 3820        };
 3821
 3822        let new_pane = self.add_pane(window, cx);
 3823        move_item(&from, &new_pane, item_id_to_move, 0, true, window, cx);
 3824        self.center
 3825            .split(&pane_to_split, &new_pane, split_direction)
 3826            .unwrap();
 3827        cx.notify();
 3828    }
 3829
 3830    pub fn split_pane_with_project_entry(
 3831        &mut self,
 3832        pane_to_split: WeakEntity<Pane>,
 3833        split_direction: SplitDirection,
 3834        project_entry: ProjectEntryId,
 3835        window: &mut Window,
 3836        cx: &mut Context<Self>,
 3837    ) -> Option<Task<Result<()>>> {
 3838        let pane_to_split = pane_to_split.upgrade()?;
 3839        let new_pane = self.add_pane(window, cx);
 3840        self.center
 3841            .split(&pane_to_split, &new_pane, split_direction)
 3842            .unwrap();
 3843
 3844        let path = self.project.read(cx).path_for_entry(project_entry, cx)?;
 3845        let task = self.open_path(path, Some(new_pane.downgrade()), true, window, cx);
 3846        Some(cx.foreground_executor().spawn(async move {
 3847            task.await?;
 3848            Ok(())
 3849        }))
 3850    }
 3851
 3852    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3853        let active_item = self.active_pane.read(cx).active_item();
 3854        for pane in &self.panes {
 3855            join_pane_into_active(&self.active_pane, pane, window, cx);
 3856        }
 3857        if let Some(active_item) = active_item {
 3858            self.activate_item(active_item.as_ref(), true, true, window, cx);
 3859        }
 3860        cx.notify();
 3861    }
 3862
 3863    pub fn join_pane_into_next(
 3864        &mut self,
 3865        pane: Entity<Pane>,
 3866        window: &mut Window,
 3867        cx: &mut Context<Self>,
 3868    ) {
 3869        let next_pane = self
 3870            .find_pane_in_direction(SplitDirection::Right, cx)
 3871            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 3872            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 3873            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 3874        let Some(next_pane) = next_pane else {
 3875            return;
 3876        };
 3877        move_all_items(&pane, &next_pane, window, cx);
 3878        cx.notify();
 3879    }
 3880
 3881    fn remove_pane(
 3882        &mut self,
 3883        pane: Entity<Pane>,
 3884        focus_on: Option<Entity<Pane>>,
 3885        window: &mut Window,
 3886        cx: &mut Context<Self>,
 3887    ) {
 3888        if self.center.remove(&pane).unwrap() {
 3889            self.force_remove_pane(&pane, &focus_on, window, cx);
 3890            self.unfollow_in_pane(&pane, window, cx);
 3891            self.last_leaders_by_pane.remove(&pane.downgrade());
 3892            for removed_item in pane.read(cx).items() {
 3893                self.panes_by_item.remove(&removed_item.item_id());
 3894            }
 3895
 3896            cx.notify();
 3897        } else {
 3898            self.active_item_path_changed(window, cx);
 3899        }
 3900        cx.emit(Event::PaneRemoved);
 3901    }
 3902
 3903    pub fn panes(&self) -> &[Entity<Pane>] {
 3904        &self.panes
 3905    }
 3906
 3907    pub fn active_pane(&self) -> &Entity<Pane> {
 3908        &self.active_pane
 3909    }
 3910
 3911    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 3912        for dock in self.all_docks() {
 3913            if dock.focus_handle(cx).contains_focused(window, cx) {
 3914                if let Some(pane) = dock
 3915                    .read(cx)
 3916                    .active_panel()
 3917                    .and_then(|panel| panel.pane(cx))
 3918                {
 3919                    return pane;
 3920                }
 3921            }
 3922        }
 3923        self.active_pane().clone()
 3924    }
 3925
 3926    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3927        self.find_pane_in_direction(SplitDirection::Right, cx)
 3928            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 3929            .unwrap_or_else(|| {
 3930                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3931            })
 3932            .clone()
 3933    }
 3934
 3935    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 3936        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 3937        weak_pane.upgrade()
 3938    }
 3939
 3940    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 3941        self.follower_states.retain(|leader_id, state| {
 3942            if *leader_id == CollaboratorId::PeerId(peer_id) {
 3943                for item in state.items_by_leader_view_id.values() {
 3944                    item.view.set_leader_id(None, window, cx);
 3945                }
 3946                false
 3947            } else {
 3948                true
 3949            }
 3950        });
 3951        cx.notify();
 3952    }
 3953
 3954    pub fn start_following(
 3955        &mut self,
 3956        leader_id: impl Into<CollaboratorId>,
 3957        window: &mut Window,
 3958        cx: &mut Context<Self>,
 3959    ) -> Option<Task<Result<()>>> {
 3960        let leader_id = leader_id.into();
 3961        let pane = self.active_pane().clone();
 3962
 3963        self.last_leaders_by_pane
 3964            .insert(pane.downgrade(), leader_id);
 3965        self.unfollow(leader_id, window, cx);
 3966        self.unfollow_in_pane(&pane, window, cx);
 3967        self.follower_states.insert(
 3968            leader_id,
 3969            FollowerState {
 3970                center_pane: pane.clone(),
 3971                dock_pane: None,
 3972                active_view_id: None,
 3973                items_by_leader_view_id: Default::default(),
 3974            },
 3975        );
 3976        cx.notify();
 3977
 3978        match leader_id {
 3979            CollaboratorId::PeerId(leader_peer_id) => {
 3980                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 3981                let project_id = self.project.read(cx).remote_id();
 3982                let request = self.app_state.client.request(proto::Follow {
 3983                    room_id,
 3984                    project_id,
 3985                    leader_id: Some(leader_peer_id),
 3986                });
 3987
 3988                Some(cx.spawn_in(window, async move |this, cx| {
 3989                    let response = request.await?;
 3990                    this.update(cx, |this, _| {
 3991                        let state = this
 3992                            .follower_states
 3993                            .get_mut(&leader_id)
 3994                            .context("following interrupted")?;
 3995                        state.active_view_id = response
 3996                            .active_view
 3997                            .as_ref()
 3998                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 3999                        anyhow::Ok(())
 4000                    })??;
 4001                    if let Some(view) = response.active_view {
 4002                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4003                    }
 4004                    this.update_in(cx, |this, window, cx| {
 4005                        this.leader_updated(leader_id, window, cx)
 4006                    })?;
 4007                    Ok(())
 4008                }))
 4009            }
 4010            CollaboratorId::Agent => {
 4011                self.leader_updated(leader_id, window, cx)?;
 4012                Some(Task::ready(Ok(())))
 4013            }
 4014        }
 4015    }
 4016
 4017    pub fn follow_next_collaborator(
 4018        &mut self,
 4019        _: &FollowNextCollaborator,
 4020        window: &mut Window,
 4021        cx: &mut Context<Self>,
 4022    ) {
 4023        let collaborators = self.project.read(cx).collaborators();
 4024        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4025            let mut collaborators = collaborators.keys().copied();
 4026            for peer_id in collaborators.by_ref() {
 4027                if CollaboratorId::PeerId(peer_id) == leader_id {
 4028                    break;
 4029                }
 4030            }
 4031            collaborators.next().map(CollaboratorId::PeerId)
 4032        } else if let Some(last_leader_id) =
 4033            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4034        {
 4035            match last_leader_id {
 4036                CollaboratorId::PeerId(peer_id) => {
 4037                    if collaborators.contains_key(peer_id) {
 4038                        Some(*last_leader_id)
 4039                    } else {
 4040                        None
 4041                    }
 4042                }
 4043                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4044            }
 4045        } else {
 4046            None
 4047        };
 4048
 4049        let pane = self.active_pane.clone();
 4050        let Some(leader_id) = next_leader_id.or_else(|| {
 4051            Some(CollaboratorId::PeerId(
 4052                collaborators.keys().copied().next()?,
 4053            ))
 4054        }) else {
 4055            return;
 4056        };
 4057        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4058            return;
 4059        }
 4060        if let Some(task) = self.start_following(leader_id, window, cx) {
 4061            task.detach_and_log_err(cx)
 4062        }
 4063    }
 4064
 4065    pub fn follow(
 4066        &mut self,
 4067        leader_id: impl Into<CollaboratorId>,
 4068        window: &mut Window,
 4069        cx: &mut Context<Self>,
 4070    ) {
 4071        let leader_id = leader_id.into();
 4072
 4073        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4074            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4075                return;
 4076            };
 4077            let room = room.read(cx);
 4078            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4079                return;
 4080            };
 4081
 4082            let project = self.project.read(cx);
 4083
 4084            let other_project_id = match remote_participant.location {
 4085                call::ParticipantLocation::External => None,
 4086                call::ParticipantLocation::UnsharedProject => None,
 4087                call::ParticipantLocation::SharedProject { project_id } => {
 4088                    if Some(project_id) == project.remote_id() {
 4089                        None
 4090                    } else {
 4091                        Some(project_id)
 4092                    }
 4093                }
 4094            };
 4095
 4096            // if they are active in another project, follow there.
 4097            if let Some(project_id) = other_project_id {
 4098                let app_state = self.app_state.clone();
 4099                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4100                    .detach_and_log_err(cx);
 4101            }
 4102        }
 4103
 4104        // if you're already following, find the right pane and focus it.
 4105        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4106            window.focus(&follower_state.pane().focus_handle(cx));
 4107
 4108            return;
 4109        }
 4110
 4111        // Otherwise, follow.
 4112        if let Some(task) = self.start_following(leader_id, window, cx) {
 4113            task.detach_and_log_err(cx)
 4114        }
 4115    }
 4116
 4117    pub fn unfollow(
 4118        &mut self,
 4119        leader_id: impl Into<CollaboratorId>,
 4120        window: &mut Window,
 4121        cx: &mut Context<Self>,
 4122    ) -> Option<()> {
 4123        cx.notify();
 4124
 4125        let leader_id = leader_id.into();
 4126        let state = self.follower_states.remove(&leader_id)?;
 4127        for (_, item) in state.items_by_leader_view_id {
 4128            item.view.set_leader_id(None, window, cx);
 4129        }
 4130
 4131        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4132            let project_id = self.project.read(cx).remote_id();
 4133            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4134            self.app_state
 4135                .client
 4136                .send(proto::Unfollow {
 4137                    room_id,
 4138                    project_id,
 4139                    leader_id: Some(leader_peer_id),
 4140                })
 4141                .log_err();
 4142        }
 4143
 4144        Some(())
 4145    }
 4146
 4147    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4148        self.follower_states.contains_key(&id.into())
 4149    }
 4150
 4151    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4152        cx.emit(Event::ActiveItemChanged);
 4153        let active_entry = self.active_project_path(cx);
 4154        self.project
 4155            .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 4156
 4157        self.update_window_title(window, cx);
 4158    }
 4159
 4160    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4161        let project = self.project().read(cx);
 4162        let mut title = String::new();
 4163
 4164        for (i, name) in project.worktree_root_names(cx).enumerate() {
 4165            if i > 0 {
 4166                title.push_str(", ");
 4167            }
 4168            title.push_str(name);
 4169        }
 4170
 4171        if title.is_empty() {
 4172            title = "empty project".to_string();
 4173        }
 4174
 4175        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4176            let filename = path
 4177                .path
 4178                .file_name()
 4179                .map(|s| s.to_string_lossy())
 4180                .or_else(|| {
 4181                    Some(Cow::Borrowed(
 4182                        project
 4183                            .worktree_for_id(path.worktree_id, cx)?
 4184                            .read(cx)
 4185                            .root_name(),
 4186                    ))
 4187                });
 4188
 4189            if let Some(filename) = filename {
 4190                title.push_str("");
 4191                title.push_str(filename.as_ref());
 4192            }
 4193        }
 4194
 4195        if project.is_via_collab() {
 4196            title.push_str("");
 4197        } else if project.is_shared() {
 4198            title.push_str("");
 4199        }
 4200
 4201        window.set_window_title(&title);
 4202    }
 4203
 4204    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4205        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4206        if is_edited != self.window_edited {
 4207            self.window_edited = is_edited;
 4208            window.set_window_edited(self.window_edited)
 4209        }
 4210    }
 4211
 4212    fn update_item_dirty_state(
 4213        &mut self,
 4214        item: &dyn ItemHandle,
 4215        window: &mut Window,
 4216        cx: &mut App,
 4217    ) {
 4218        let is_dirty = item.is_dirty(cx);
 4219        let item_id = item.item_id();
 4220        let was_dirty = self.dirty_items.contains_key(&item_id);
 4221        if is_dirty == was_dirty {
 4222            return;
 4223        }
 4224        if was_dirty {
 4225            self.dirty_items.remove(&item_id);
 4226            self.update_window_edited(window, cx);
 4227            return;
 4228        }
 4229        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4230            let s = item.on_release(
 4231                cx,
 4232                Box::new(move |cx| {
 4233                    window_handle
 4234                        .update(cx, |this, window, cx| {
 4235                            this.dirty_items.remove(&item_id);
 4236                            this.update_window_edited(window, cx)
 4237                        })
 4238                        .ok();
 4239                }),
 4240            );
 4241            self.dirty_items.insert(item_id, s);
 4242            self.update_window_edited(window, cx);
 4243        }
 4244    }
 4245
 4246    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4247        if self.notifications.is_empty() {
 4248            None
 4249        } else {
 4250            Some(
 4251                div()
 4252                    .absolute()
 4253                    .right_3()
 4254                    .bottom_3()
 4255                    .w_112()
 4256                    .h_full()
 4257                    .flex()
 4258                    .flex_col()
 4259                    .justify_end()
 4260                    .gap_2()
 4261                    .children(
 4262                        self.notifications
 4263                            .iter()
 4264                            .map(|(_, notification)| notification.clone().into_any()),
 4265                    ),
 4266            )
 4267        }
 4268    }
 4269
 4270    // RPC handlers
 4271
 4272    fn active_view_for_follower(
 4273        &self,
 4274        follower_project_id: Option<u64>,
 4275        window: &mut Window,
 4276        cx: &mut Context<Self>,
 4277    ) -> Option<proto::View> {
 4278        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4279        let item = item?;
 4280        let leader_id = self
 4281            .pane_for(&*item)
 4282            .and_then(|pane| self.leader_for_pane(&pane));
 4283        let leader_peer_id = match leader_id {
 4284            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4285            Some(CollaboratorId::Agent) | None => None,
 4286        };
 4287
 4288        let item_handle = item.to_followable_item_handle(cx)?;
 4289        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4290        let variant = item_handle.to_state_proto(window, cx)?;
 4291
 4292        if item_handle.is_project_item(window, cx)
 4293            && (follower_project_id.is_none()
 4294                || follower_project_id != self.project.read(cx).remote_id())
 4295        {
 4296            return None;
 4297        }
 4298
 4299        Some(proto::View {
 4300            id: id.to_proto(),
 4301            leader_id: leader_peer_id,
 4302            variant: Some(variant),
 4303            panel_id: panel_id.map(|id| id as i32),
 4304        })
 4305    }
 4306
 4307    fn handle_follow(
 4308        &mut self,
 4309        follower_project_id: Option<u64>,
 4310        window: &mut Window,
 4311        cx: &mut Context<Self>,
 4312    ) -> proto::FollowResponse {
 4313        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4314
 4315        cx.notify();
 4316        proto::FollowResponse {
 4317            // TODO: Remove after version 0.145.x stabilizes.
 4318            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4319            views: active_view.iter().cloned().collect(),
 4320            active_view,
 4321        }
 4322    }
 4323
 4324    fn handle_update_followers(
 4325        &mut self,
 4326        leader_id: PeerId,
 4327        message: proto::UpdateFollowers,
 4328        _window: &mut Window,
 4329        _cx: &mut Context<Self>,
 4330    ) {
 4331        self.leader_updates_tx
 4332            .unbounded_send((leader_id, message))
 4333            .ok();
 4334    }
 4335
 4336    async fn process_leader_update(
 4337        this: &WeakEntity<Self>,
 4338        leader_id: PeerId,
 4339        update: proto::UpdateFollowers,
 4340        cx: &mut AsyncWindowContext,
 4341    ) -> Result<()> {
 4342        match update.variant.context("invalid update")? {
 4343            proto::update_followers::Variant::CreateView(view) => {
 4344                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4345                let should_add_view = this.update(cx, |this, _| {
 4346                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4347                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4348                    } else {
 4349                        anyhow::Ok(false)
 4350                    }
 4351                })??;
 4352
 4353                if should_add_view {
 4354                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4355                }
 4356            }
 4357            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4358                let should_add_view = this.update(cx, |this, _| {
 4359                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4360                        state.active_view_id = update_active_view
 4361                            .view
 4362                            .as_ref()
 4363                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4364
 4365                        if state.active_view_id.is_some_and(|view_id| {
 4366                            !state.items_by_leader_view_id.contains_key(&view_id)
 4367                        }) {
 4368                            anyhow::Ok(true)
 4369                        } else {
 4370                            anyhow::Ok(false)
 4371                        }
 4372                    } else {
 4373                        anyhow::Ok(false)
 4374                    }
 4375                })??;
 4376
 4377                if should_add_view {
 4378                    if let Some(view) = update_active_view.view {
 4379                        Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4380                    }
 4381                }
 4382            }
 4383            proto::update_followers::Variant::UpdateView(update_view) => {
 4384                let variant = update_view.variant.context("missing update view variant")?;
 4385                let id = update_view.id.context("missing update view id")?;
 4386                let mut tasks = Vec::new();
 4387                this.update_in(cx, |this, window, cx| {
 4388                    let project = this.project.clone();
 4389                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4390                        let view_id = ViewId::from_proto(id.clone())?;
 4391                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4392                            tasks.push(item.view.apply_update_proto(
 4393                                &project,
 4394                                variant.clone(),
 4395                                window,
 4396                                cx,
 4397                            ));
 4398                        }
 4399                    }
 4400                    anyhow::Ok(())
 4401                })??;
 4402                try_join_all(tasks).await.log_err();
 4403            }
 4404        }
 4405        this.update_in(cx, |this, window, cx| {
 4406            this.leader_updated(leader_id, window, cx)
 4407        })?;
 4408        Ok(())
 4409    }
 4410
 4411    async fn add_view_from_leader(
 4412        this: WeakEntity<Self>,
 4413        leader_id: PeerId,
 4414        view: &proto::View,
 4415        cx: &mut AsyncWindowContext,
 4416    ) -> Result<()> {
 4417        let this = this.upgrade().context("workspace dropped")?;
 4418
 4419        let Some(id) = view.id.clone() else {
 4420            anyhow::bail!("no id for view");
 4421        };
 4422        let id = ViewId::from_proto(id)?;
 4423        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4424
 4425        let pane = this.update(cx, |this, _cx| {
 4426            let state = this
 4427                .follower_states
 4428                .get(&leader_id.into())
 4429                .context("stopped following")?;
 4430            anyhow::Ok(state.pane().clone())
 4431        })??;
 4432        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4433            let client = this.read(cx).client().clone();
 4434            pane.items().find_map(|item| {
 4435                let item = item.to_followable_item_handle(cx)?;
 4436                if item.remote_id(&client, window, cx) == Some(id) {
 4437                    Some(item)
 4438                } else {
 4439                    None
 4440                }
 4441            })
 4442        })?;
 4443        let item = if let Some(existing_item) = existing_item {
 4444            existing_item
 4445        } else {
 4446            let variant = view.variant.clone();
 4447            anyhow::ensure!(variant.is_some(), "missing view variant");
 4448
 4449            let task = cx.update(|window, cx| {
 4450                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4451            })?;
 4452
 4453            let Some(task) = task else {
 4454                anyhow::bail!(
 4455                    "failed to construct view from leader (maybe from a different version of zed?)"
 4456                );
 4457            };
 4458
 4459            let mut new_item = task.await?;
 4460            pane.update_in(cx, |pane, window, cx| {
 4461                let mut item_to_remove = None;
 4462                for (ix, item) in pane.items().enumerate() {
 4463                    if let Some(item) = item.to_followable_item_handle(cx) {
 4464                        match new_item.dedup(item.as_ref(), window, cx) {
 4465                            Some(item::Dedup::KeepExisting) => {
 4466                                new_item =
 4467                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4468                                break;
 4469                            }
 4470                            Some(item::Dedup::ReplaceExisting) => {
 4471                                item_to_remove = Some((ix, item.item_id()));
 4472                                break;
 4473                            }
 4474                            None => {}
 4475                        }
 4476                    }
 4477                }
 4478
 4479                if let Some((ix, id)) = item_to_remove {
 4480                    pane.remove_item(id, false, false, window, cx);
 4481                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4482                }
 4483            })?;
 4484
 4485            new_item
 4486        };
 4487
 4488        this.update_in(cx, |this, window, cx| {
 4489            let state = this.follower_states.get_mut(&leader_id.into())?;
 4490            item.set_leader_id(Some(leader_id.into()), window, cx);
 4491            state.items_by_leader_view_id.insert(
 4492                id,
 4493                FollowerView {
 4494                    view: item,
 4495                    location: panel_id,
 4496                },
 4497            );
 4498
 4499            Some(())
 4500        })?;
 4501
 4502        Ok(())
 4503    }
 4504
 4505    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4506        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4507            return;
 4508        };
 4509
 4510        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4511            let buffer_entity_id = agent_location.buffer.entity_id();
 4512            let view_id = ViewId {
 4513                creator: CollaboratorId::Agent,
 4514                id: buffer_entity_id.as_u64(),
 4515            };
 4516            follower_state.active_view_id = Some(view_id);
 4517
 4518            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4519                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4520                hash_map::Entry::Vacant(entry) => {
 4521                    let existing_view =
 4522                        follower_state
 4523                            .center_pane
 4524                            .read(cx)
 4525                            .items()
 4526                            .find_map(|item| {
 4527                                let item = item.to_followable_item_handle(cx)?;
 4528                                if item.is_singleton(cx)
 4529                                    && item.project_item_model_ids(cx).as_slice()
 4530                                        == [buffer_entity_id]
 4531                                {
 4532                                    Some(item)
 4533                                } else {
 4534                                    None
 4535                                }
 4536                            });
 4537                    let view = existing_view.or_else(|| {
 4538                        agent_location.buffer.upgrade().and_then(|buffer| {
 4539                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4540                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4541                            })?
 4542                            .to_followable_item_handle(cx)
 4543                        })
 4544                    });
 4545
 4546                    if let Some(view) = view {
 4547                        Some(entry.insert(FollowerView {
 4548                            view,
 4549                            location: None,
 4550                        }))
 4551                    } else {
 4552                        None
 4553                    }
 4554                }
 4555            };
 4556
 4557            if let Some(item) = item {
 4558                item.view
 4559                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4560                item.view
 4561                    .update_agent_location(agent_location.position, window, cx);
 4562            }
 4563        } else {
 4564            follower_state.active_view_id = None;
 4565        }
 4566
 4567        self.leader_updated(CollaboratorId::Agent, window, cx);
 4568    }
 4569
 4570    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4571        let mut is_project_item = true;
 4572        let mut update = proto::UpdateActiveView::default();
 4573        if window.is_window_active() {
 4574            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4575
 4576            if let Some(item) = active_item {
 4577                if item.item_focus_handle(cx).contains_focused(window, cx) {
 4578                    let leader_id = self
 4579                        .pane_for(&*item)
 4580                        .and_then(|pane| self.leader_for_pane(&pane));
 4581                    let leader_peer_id = match leader_id {
 4582                        Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4583                        Some(CollaboratorId::Agent) | None => None,
 4584                    };
 4585
 4586                    if let Some(item) = item.to_followable_item_handle(cx) {
 4587                        let id = item
 4588                            .remote_id(&self.app_state.client, window, cx)
 4589                            .map(|id| id.to_proto());
 4590
 4591                        if let Some(id) = id.clone() {
 4592                            if let Some(variant) = item.to_state_proto(window, cx) {
 4593                                let view = Some(proto::View {
 4594                                    id: id.clone(),
 4595                                    leader_id: leader_peer_id,
 4596                                    variant: Some(variant),
 4597                                    panel_id: panel_id.map(|id| id as i32),
 4598                                });
 4599
 4600                                is_project_item = item.is_project_item(window, cx);
 4601                                update = proto::UpdateActiveView {
 4602                                    view,
 4603                                    // TODO: Remove after version 0.145.x stabilizes.
 4604                                    id: id.clone(),
 4605                                    leader_id: leader_peer_id,
 4606                                };
 4607                            }
 4608                        };
 4609                    }
 4610                }
 4611            }
 4612        }
 4613
 4614        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 4615        if active_view_id != self.last_active_view_id.as_ref() {
 4616            self.last_active_view_id = active_view_id.cloned();
 4617            self.update_followers(
 4618                is_project_item,
 4619                proto::update_followers::Variant::UpdateActiveView(update),
 4620                window,
 4621                cx,
 4622            );
 4623        }
 4624    }
 4625
 4626    fn active_item_for_followers(
 4627        &self,
 4628        window: &mut Window,
 4629        cx: &mut App,
 4630    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 4631        let mut active_item = None;
 4632        let mut panel_id = None;
 4633        for dock in self.all_docks() {
 4634            if dock.focus_handle(cx).contains_focused(window, cx) {
 4635                if let Some(panel) = dock.read(cx).active_panel() {
 4636                    if let Some(pane) = panel.pane(cx) {
 4637                        if let Some(item) = pane.read(cx).active_item() {
 4638                            active_item = Some(item);
 4639                            panel_id = panel.remote_id();
 4640                            break;
 4641                        }
 4642                    }
 4643                }
 4644            }
 4645        }
 4646
 4647        if active_item.is_none() {
 4648            active_item = self.active_pane().read(cx).active_item();
 4649        }
 4650        (active_item, panel_id)
 4651    }
 4652
 4653    fn update_followers(
 4654        &self,
 4655        project_only: bool,
 4656        update: proto::update_followers::Variant,
 4657        _: &mut Window,
 4658        cx: &mut App,
 4659    ) -> Option<()> {
 4660        // If this update only applies to for followers in the current project,
 4661        // then skip it unless this project is shared. If it applies to all
 4662        // followers, regardless of project, then set `project_id` to none,
 4663        // indicating that it goes to all followers.
 4664        let project_id = if project_only {
 4665            Some(self.project.read(cx).remote_id()?)
 4666        } else {
 4667            None
 4668        };
 4669        self.app_state().workspace_store.update(cx, |store, cx| {
 4670            store.update_followers(project_id, update, cx)
 4671        })
 4672    }
 4673
 4674    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 4675        self.follower_states.iter().find_map(|(leader_id, state)| {
 4676            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 4677                Some(*leader_id)
 4678            } else {
 4679                None
 4680            }
 4681        })
 4682    }
 4683
 4684    fn leader_updated(
 4685        &mut self,
 4686        leader_id: impl Into<CollaboratorId>,
 4687        window: &mut Window,
 4688        cx: &mut Context<Self>,
 4689    ) -> Option<Box<dyn ItemHandle>> {
 4690        cx.notify();
 4691
 4692        let leader_id = leader_id.into();
 4693        let (panel_id, item) = match leader_id {
 4694            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 4695            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 4696        };
 4697
 4698        let state = self.follower_states.get(&leader_id)?;
 4699        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 4700        let pane;
 4701        if let Some(panel_id) = panel_id {
 4702            pane = self
 4703                .activate_panel_for_proto_id(panel_id, window, cx)?
 4704                .pane(cx)?;
 4705            let state = self.follower_states.get_mut(&leader_id)?;
 4706            state.dock_pane = Some(pane.clone());
 4707        } else {
 4708            pane = state.center_pane.clone();
 4709            let state = self.follower_states.get_mut(&leader_id)?;
 4710            if let Some(dock_pane) = state.dock_pane.take() {
 4711                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 4712            }
 4713        }
 4714
 4715        pane.update(cx, |pane, cx| {
 4716            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 4717            if let Some(index) = pane.index_for_item(item.as_ref()) {
 4718                pane.activate_item(index, false, false, window, cx);
 4719            } else {
 4720                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 4721            }
 4722
 4723            if focus_active_item {
 4724                pane.focus_active_item(window, cx)
 4725            }
 4726        });
 4727
 4728        Some(item)
 4729    }
 4730
 4731    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 4732        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 4733        let active_view_id = state.active_view_id?;
 4734        Some(
 4735            state
 4736                .items_by_leader_view_id
 4737                .get(&active_view_id)?
 4738                .view
 4739                .boxed_clone(),
 4740        )
 4741    }
 4742
 4743    fn active_item_for_peer(
 4744        &self,
 4745        peer_id: PeerId,
 4746        window: &mut Window,
 4747        cx: &mut Context<Self>,
 4748    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 4749        let call = self.active_call()?;
 4750        let room = call.read(cx).room()?.read(cx);
 4751        let participant = room.remote_participant_for_peer_id(peer_id)?;
 4752        let leader_in_this_app;
 4753        let leader_in_this_project;
 4754        match participant.location {
 4755            call::ParticipantLocation::SharedProject { project_id } => {
 4756                leader_in_this_app = true;
 4757                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 4758            }
 4759            call::ParticipantLocation::UnsharedProject => {
 4760                leader_in_this_app = true;
 4761                leader_in_this_project = false;
 4762            }
 4763            call::ParticipantLocation::External => {
 4764                leader_in_this_app = false;
 4765                leader_in_this_project = false;
 4766            }
 4767        };
 4768        let state = self.follower_states.get(&peer_id.into())?;
 4769        let mut item_to_activate = None;
 4770        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 4771            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id) {
 4772                if leader_in_this_project || !item.view.is_project_item(window, cx) {
 4773                    item_to_activate = Some((item.location, item.view.boxed_clone()));
 4774                }
 4775            }
 4776        } else if let Some(shared_screen) =
 4777            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 4778        {
 4779            item_to_activate = Some((None, Box::new(shared_screen)));
 4780        }
 4781        item_to_activate
 4782    }
 4783
 4784    fn shared_screen_for_peer(
 4785        &self,
 4786        peer_id: PeerId,
 4787        pane: &Entity<Pane>,
 4788        window: &mut Window,
 4789        cx: &mut App,
 4790    ) -> Option<Entity<SharedScreen>> {
 4791        let call = self.active_call()?;
 4792        let room = call.read(cx).room()?.clone();
 4793        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 4794        let track = participant.video_tracks.values().next()?.clone();
 4795        let user = participant.user.clone();
 4796
 4797        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 4798            if item.read(cx).peer_id == peer_id {
 4799                return Some(item);
 4800            }
 4801        }
 4802
 4803        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 4804    }
 4805
 4806    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4807        if window.is_window_active() {
 4808            self.update_active_view_for_followers(window, cx);
 4809
 4810            if let Some(database_id) = self.database_id {
 4811                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 4812                    .detach();
 4813            }
 4814        } else {
 4815            for pane in &self.panes {
 4816                pane.update(cx, |pane, cx| {
 4817                    if let Some(item) = pane.active_item() {
 4818                        item.workspace_deactivated(window, cx);
 4819                    }
 4820                    for item in pane.items() {
 4821                        if matches!(
 4822                            item.workspace_settings(cx).autosave,
 4823                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 4824                        ) {
 4825                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 4826                                .detach_and_log_err(cx);
 4827                        }
 4828                    }
 4829                });
 4830            }
 4831        }
 4832    }
 4833
 4834    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 4835        self.active_call.as_ref().map(|(call, _)| call)
 4836    }
 4837
 4838    fn on_active_call_event(
 4839        &mut self,
 4840        _: &Entity<ActiveCall>,
 4841        event: &call::room::Event,
 4842        window: &mut Window,
 4843        cx: &mut Context<Self>,
 4844    ) {
 4845        match event {
 4846            call::room::Event::ParticipantLocationChanged { participant_id }
 4847            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 4848                self.leader_updated(participant_id, window, cx);
 4849            }
 4850            _ => {}
 4851        }
 4852    }
 4853
 4854    pub fn database_id(&self) -> Option<WorkspaceId> {
 4855        self.database_id
 4856    }
 4857
 4858    pub fn session_id(&self) -> Option<String> {
 4859        self.session_id.clone()
 4860    }
 4861
 4862    fn local_paths(&self, cx: &App) -> Option<Vec<Arc<Path>>> {
 4863        let project = self.project().read(cx);
 4864
 4865        if project.is_local() {
 4866            Some(
 4867                project
 4868                    .visible_worktrees(cx)
 4869                    .map(|worktree| worktree.read(cx).abs_path())
 4870                    .collect::<Vec<_>>(),
 4871            )
 4872        } else {
 4873            None
 4874        }
 4875    }
 4876
 4877    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 4878        match member {
 4879            Member::Axis(PaneAxis { members, .. }) => {
 4880                for child in members.iter() {
 4881                    self.remove_panes(child.clone(), window, cx)
 4882                }
 4883            }
 4884            Member::Pane(pane) => {
 4885                self.force_remove_pane(&pane, &None, window, cx);
 4886            }
 4887        }
 4888    }
 4889
 4890    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 4891        self.session_id.take();
 4892        self.serialize_workspace_internal(window, cx)
 4893    }
 4894
 4895    fn force_remove_pane(
 4896        &mut self,
 4897        pane: &Entity<Pane>,
 4898        focus_on: &Option<Entity<Pane>>,
 4899        window: &mut Window,
 4900        cx: &mut Context<Workspace>,
 4901    ) {
 4902        self.panes.retain(|p| p != pane);
 4903        if let Some(focus_on) = focus_on {
 4904            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 4905        } else {
 4906            if self.active_pane() == pane {
 4907                self.panes
 4908                    .last()
 4909                    .unwrap()
 4910                    .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 4911            }
 4912        }
 4913        if self.last_active_center_pane == Some(pane.downgrade()) {
 4914            self.last_active_center_pane = None;
 4915        }
 4916        cx.notify();
 4917    }
 4918
 4919    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4920        if self._schedule_serialize.is_none() {
 4921            self._schedule_serialize = Some(cx.spawn_in(window, async move |this, cx| {
 4922                cx.background_executor()
 4923                    .timer(Duration::from_millis(100))
 4924                    .await;
 4925                this.update_in(cx, |this, window, cx| {
 4926                    this.serialize_workspace_internal(window, cx).detach();
 4927                    this._schedule_serialize.take();
 4928                })
 4929                .log_err();
 4930            }));
 4931        }
 4932    }
 4933
 4934    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 4935        let Some(database_id) = self.database_id() else {
 4936            return Task::ready(());
 4937        };
 4938
 4939        fn serialize_pane_handle(
 4940            pane_handle: &Entity<Pane>,
 4941            window: &mut Window,
 4942            cx: &mut App,
 4943        ) -> SerializedPane {
 4944            let (items, active, pinned_count) = {
 4945                let pane = pane_handle.read(cx);
 4946                let active_item_id = pane.active_item().map(|item| item.item_id());
 4947                (
 4948                    pane.items()
 4949                        .filter_map(|handle| {
 4950                            let handle = handle.to_serializable_item_handle(cx)?;
 4951
 4952                            Some(SerializedItem {
 4953                                kind: Arc::from(handle.serialized_item_kind()),
 4954                                item_id: handle.item_id().as_u64(),
 4955                                active: Some(handle.item_id()) == active_item_id,
 4956                                preview: pane.is_active_preview_item(handle.item_id()),
 4957                            })
 4958                        })
 4959                        .collect::<Vec<_>>(),
 4960                    pane.has_focus(window, cx),
 4961                    pane.pinned_count(),
 4962                )
 4963            };
 4964
 4965            SerializedPane::new(items, active, pinned_count)
 4966        }
 4967
 4968        fn build_serialized_pane_group(
 4969            pane_group: &Member,
 4970            window: &mut Window,
 4971            cx: &mut App,
 4972        ) -> SerializedPaneGroup {
 4973            match pane_group {
 4974                Member::Axis(PaneAxis {
 4975                    axis,
 4976                    members,
 4977                    flexes,
 4978                    bounding_boxes: _,
 4979                }) => SerializedPaneGroup::Group {
 4980                    axis: SerializedAxis(*axis),
 4981                    children: members
 4982                        .iter()
 4983                        .map(|member| build_serialized_pane_group(member, window, cx))
 4984                        .collect::<Vec<_>>(),
 4985                    flexes: Some(flexes.lock().clone()),
 4986                },
 4987                Member::Pane(pane_handle) => {
 4988                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 4989                }
 4990            }
 4991        }
 4992
 4993        fn build_serialized_docks(
 4994            this: &Workspace,
 4995            window: &mut Window,
 4996            cx: &mut App,
 4997        ) -> DockStructure {
 4998            let left_dock = this.left_dock.read(cx);
 4999            let left_visible = left_dock.is_open();
 5000            let left_active_panel = left_dock
 5001                .active_panel()
 5002                .map(|panel| panel.persistent_name().to_string());
 5003            let left_dock_zoom = left_dock
 5004                .active_panel()
 5005                .map(|panel| panel.is_zoomed(window, cx))
 5006                .unwrap_or(false);
 5007
 5008            let right_dock = this.right_dock.read(cx);
 5009            let right_visible = right_dock.is_open();
 5010            let right_active_panel = right_dock
 5011                .active_panel()
 5012                .map(|panel| panel.persistent_name().to_string());
 5013            let right_dock_zoom = right_dock
 5014                .active_panel()
 5015                .map(|panel| panel.is_zoomed(window, cx))
 5016                .unwrap_or(false);
 5017
 5018            let bottom_dock = this.bottom_dock.read(cx);
 5019            let bottom_visible = bottom_dock.is_open();
 5020            let bottom_active_panel = bottom_dock
 5021                .active_panel()
 5022                .map(|panel| panel.persistent_name().to_string());
 5023            let bottom_dock_zoom = bottom_dock
 5024                .active_panel()
 5025                .map(|panel| panel.is_zoomed(window, cx))
 5026                .unwrap_or(false);
 5027
 5028            DockStructure {
 5029                left: DockData {
 5030                    visible: left_visible,
 5031                    active_panel: left_active_panel,
 5032                    zoom: left_dock_zoom,
 5033                },
 5034                right: DockData {
 5035                    visible: right_visible,
 5036                    active_panel: right_active_panel,
 5037                    zoom: right_dock_zoom,
 5038                },
 5039                bottom: DockData {
 5040                    visible: bottom_visible,
 5041                    active_panel: bottom_active_panel,
 5042                    zoom: bottom_dock_zoom,
 5043                },
 5044            }
 5045        }
 5046
 5047        if let Some(location) = self.serialize_workspace_location(cx) {
 5048            let breakpoints = self.project.update(cx, |project, cx| {
 5049                project
 5050                    .breakpoint_store()
 5051                    .read(cx)
 5052                    .all_source_breakpoints(cx)
 5053            });
 5054
 5055            let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5056            let docks = build_serialized_docks(self, window, cx);
 5057            let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5058            let serialized_workspace = SerializedWorkspace {
 5059                id: database_id,
 5060                location,
 5061                center_group,
 5062                window_bounds,
 5063                display: Default::default(),
 5064                docks,
 5065                centered_layout: self.centered_layout,
 5066                session_id: self.session_id.clone(),
 5067                breakpoints,
 5068                window_id: Some(window.window_handle().window_id().as_u64()),
 5069            };
 5070
 5071            return window.spawn(cx, async move |_| {
 5072                persistence::DB.save_workspace(serialized_workspace).await;
 5073            });
 5074        }
 5075        Task::ready(())
 5076    }
 5077
 5078    fn serialize_workspace_location(&self, cx: &App) -> Option<SerializedWorkspaceLocation> {
 5079        if let Some(ssh_project) = &self.serialized_ssh_project {
 5080            Some(SerializedWorkspaceLocation::Ssh(ssh_project.clone()))
 5081        } else if let Some(local_paths) = self.local_paths(cx) {
 5082            if !local_paths.is_empty() {
 5083                Some(SerializedWorkspaceLocation::from_local_paths(local_paths))
 5084            } else {
 5085                None
 5086            }
 5087        } else {
 5088            None
 5089        }
 5090    }
 5091
 5092    fn update_history(&self, cx: &mut App) {
 5093        let Some(id) = self.database_id() else {
 5094            return;
 5095        };
 5096        let Some(location) = self.serialize_workspace_location(cx) else {
 5097            return;
 5098        };
 5099        if let Some(manager) = HistoryManager::global(cx) {
 5100            manager.update(cx, |this, cx| {
 5101                this.update_history(id, HistoryManagerEntry::new(id, &location), cx);
 5102            });
 5103        }
 5104    }
 5105
 5106    async fn serialize_items(
 5107        this: &WeakEntity<Self>,
 5108        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5109        cx: &mut AsyncWindowContext,
 5110    ) -> Result<()> {
 5111        const CHUNK_SIZE: usize = 200;
 5112
 5113        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5114
 5115        while let Some(items_received) = serializable_items.next().await {
 5116            let unique_items =
 5117                items_received
 5118                    .into_iter()
 5119                    .fold(HashMap::default(), |mut acc, item| {
 5120                        acc.entry(item.item_id()).or_insert(item);
 5121                        acc
 5122                    });
 5123
 5124            // We use into_iter() here so that the references to the items are moved into
 5125            // the tasks and not kept alive while we're sleeping.
 5126            for (_, item) in unique_items.into_iter() {
 5127                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5128                    item.serialize(workspace, false, window, cx)
 5129                }) {
 5130                    cx.background_spawn(async move { task.await.log_err() })
 5131                        .detach();
 5132                }
 5133            }
 5134
 5135            cx.background_executor()
 5136                .timer(SERIALIZATION_THROTTLE_TIME)
 5137                .await;
 5138        }
 5139
 5140        Ok(())
 5141    }
 5142
 5143    pub(crate) fn enqueue_item_serialization(
 5144        &mut self,
 5145        item: Box<dyn SerializableItemHandle>,
 5146    ) -> Result<()> {
 5147        self.serializable_items_tx
 5148            .unbounded_send(item)
 5149            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5150    }
 5151
 5152    pub(crate) fn load_workspace(
 5153        serialized_workspace: SerializedWorkspace,
 5154        paths_to_open: Vec<Option<ProjectPath>>,
 5155        window: &mut Window,
 5156        cx: &mut Context<Workspace>,
 5157    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5158        cx.spawn_in(window, async move |workspace, cx| {
 5159            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5160
 5161            let mut center_group = None;
 5162            let mut center_items = None;
 5163
 5164            // Traverse the splits tree and add to things
 5165            if let Some((group, active_pane, items)) = serialized_workspace
 5166                .center_group
 5167                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5168                .await
 5169            {
 5170                center_items = Some(items);
 5171                center_group = Some((group, active_pane))
 5172            }
 5173
 5174            let mut items_by_project_path = HashMap::default();
 5175            let mut item_ids_by_kind = HashMap::default();
 5176            let mut all_deserialized_items = Vec::default();
 5177            cx.update(|_, cx| {
 5178                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5179                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5180                        item_ids_by_kind
 5181                            .entry(serializable_item_handle.serialized_item_kind())
 5182                            .or_insert(Vec::new())
 5183                            .push(item.item_id().as_u64() as ItemId);
 5184                    }
 5185
 5186                    if let Some(project_path) = item.project_path(cx) {
 5187                        items_by_project_path.insert(project_path, item.clone());
 5188                    }
 5189                    all_deserialized_items.push(item);
 5190                }
 5191            })?;
 5192
 5193            let opened_items = paths_to_open
 5194                .into_iter()
 5195                .map(|path_to_open| {
 5196                    path_to_open
 5197                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5198                })
 5199                .collect::<Vec<_>>();
 5200
 5201            // Remove old panes from workspace panes list
 5202            workspace.update_in(cx, |workspace, window, cx| {
 5203                if let Some((center_group, active_pane)) = center_group {
 5204                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5205
 5206                    // Swap workspace center group
 5207                    workspace.center = PaneGroup::with_root(center_group);
 5208                    if let Some(active_pane) = active_pane {
 5209                        workspace.set_active_pane(&active_pane, window, cx);
 5210                        cx.focus_self(window);
 5211                    } else {
 5212                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5213                    }
 5214                }
 5215
 5216                let docks = serialized_workspace.docks;
 5217
 5218                for (dock, serialized_dock) in [
 5219                    (&mut workspace.right_dock, docks.right),
 5220                    (&mut workspace.left_dock, docks.left),
 5221                    (&mut workspace.bottom_dock, docks.bottom),
 5222                ]
 5223                .iter_mut()
 5224                {
 5225                    dock.update(cx, |dock, cx| {
 5226                        dock.serialized_dock = Some(serialized_dock.clone());
 5227                        dock.restore_state(window, cx);
 5228                    });
 5229                }
 5230
 5231                cx.notify();
 5232            })?;
 5233
 5234            let _ = project
 5235                .update(cx, |project, cx| {
 5236                    project
 5237                        .breakpoint_store()
 5238                        .update(cx, |breakpoint_store, cx| {
 5239                            breakpoint_store
 5240                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5241                        })
 5242                })?
 5243                .await;
 5244
 5245            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5246            // after loading the items, we might have different items and in order to avoid
 5247            // the database filling up, we delete items that haven't been loaded now.
 5248            //
 5249            // The items that have been loaded, have been saved after they've been added to the workspace.
 5250            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5251                item_ids_by_kind
 5252                    .into_iter()
 5253                    .map(|(item_kind, loaded_items)| {
 5254                        SerializableItemRegistry::cleanup(
 5255                            item_kind,
 5256                            serialized_workspace.id,
 5257                            loaded_items,
 5258                            window,
 5259                            cx,
 5260                        )
 5261                        .log_err()
 5262                    })
 5263                    .collect::<Vec<_>>()
 5264            })?;
 5265
 5266            futures::future::join_all(clean_up_tasks).await;
 5267
 5268            workspace
 5269                .update_in(cx, |workspace, window, cx| {
 5270                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5271                    workspace.serialize_workspace_internal(window, cx).detach();
 5272
 5273                    // Ensure that we mark the window as edited if we did load dirty items
 5274                    workspace.update_window_edited(window, cx);
 5275                })
 5276                .ok();
 5277
 5278            Ok(opened_items)
 5279        })
 5280    }
 5281
 5282    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5283        self.add_workspace_actions_listeners(div, window, cx)
 5284            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5285            .on_action(cx.listener(Self::close_all_items_and_panes))
 5286            .on_action(cx.listener(Self::save_all))
 5287            .on_action(cx.listener(Self::send_keystrokes))
 5288            .on_action(cx.listener(Self::add_folder_to_project))
 5289            .on_action(cx.listener(Self::follow_next_collaborator))
 5290            .on_action(cx.listener(Self::close_window))
 5291            .on_action(cx.listener(Self::activate_pane_at_index))
 5292            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5293            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5294            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5295                let pane = workspace.active_pane().clone();
 5296                workspace.unfollow_in_pane(&pane, window, cx);
 5297            }))
 5298            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5299                workspace
 5300                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5301                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5302            }))
 5303            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5304                workspace
 5305                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5306                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5307            }))
 5308            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5309                workspace
 5310                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5311                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5312            }))
 5313            .on_action(
 5314                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5315                    workspace.activate_previous_pane(window, cx)
 5316                }),
 5317            )
 5318            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5319                workspace.activate_next_pane(window, cx)
 5320            }))
 5321            .on_action(
 5322                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5323                    workspace.activate_next_window(cx)
 5324                }),
 5325            )
 5326            .on_action(
 5327                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5328                    workspace.activate_previous_window(cx)
 5329                }),
 5330            )
 5331            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5332                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5333            }))
 5334            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5335                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5336            }))
 5337            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5338                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5339            }))
 5340            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5341                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5342            }))
 5343            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5344                workspace.activate_next_pane(window, cx)
 5345            }))
 5346            .on_action(cx.listener(
 5347                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5348                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5349                },
 5350            ))
 5351            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5352                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5353            }))
 5354            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5355                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5356            }))
 5357            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5358                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5359            }))
 5360            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5361                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5362            }))
 5363            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5364                this.toggle_dock(DockPosition::Left, window, cx);
 5365            }))
 5366            .on_action(cx.listener(
 5367                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5368                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5369                },
 5370            ))
 5371            .on_action(cx.listener(
 5372                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5373                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5374                },
 5375            ))
 5376            .on_action(cx.listener(
 5377                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5378                    workspace.close_active_dock(window, cx);
 5379                },
 5380            ))
 5381            .on_action(
 5382                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5383                    workspace.close_all_docks(window, cx);
 5384                }),
 5385            )
 5386            .on_action(cx.listener(
 5387                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5388                    workspace.clear_all_notifications(cx);
 5389                },
 5390            ))
 5391            .on_action(cx.listener(
 5392                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5393                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5394                        workspace.suppress_notification(&notification_id, cx);
 5395                    }
 5396                },
 5397            ))
 5398            .on_action(cx.listener(
 5399                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5400                    workspace.reopen_closed_item(window, cx).detach();
 5401                },
 5402            ))
 5403            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5404            .on_action(cx.listener(Workspace::cancel))
 5405    }
 5406
 5407    #[cfg(any(test, feature = "test-support"))]
 5408    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5409        use node_runtime::NodeRuntime;
 5410        use session::Session;
 5411
 5412        let client = project.read(cx).client();
 5413        let user_store = project.read(cx).user_store();
 5414
 5415        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5416        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5417        window.activate_window();
 5418        let app_state = Arc::new(AppState {
 5419            languages: project.read(cx).languages().clone(),
 5420            workspace_store,
 5421            client,
 5422            user_store,
 5423            fs: project.read(cx).fs().clone(),
 5424            build_window_options: |_, _| Default::default(),
 5425            node_runtime: NodeRuntime::unavailable(),
 5426            session,
 5427        });
 5428        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5429        workspace
 5430            .active_pane
 5431            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5432        workspace
 5433    }
 5434
 5435    pub fn register_action<A: Action>(
 5436        &mut self,
 5437        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5438    ) -> &mut Self {
 5439        let callback = Arc::new(callback);
 5440
 5441        self.workspace_actions.push(Box::new(move |div, _, cx| {
 5442            let callback = callback.clone();
 5443            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5444                (callback)(workspace, event, window, cx)
 5445            }))
 5446        }));
 5447        self
 5448    }
 5449
 5450    fn add_workspace_actions_listeners(
 5451        &self,
 5452        mut div: Div,
 5453        window: &mut Window,
 5454        cx: &mut Context<Self>,
 5455    ) -> Div {
 5456        for action in self.workspace_actions.iter() {
 5457            div = (action)(div, window, cx)
 5458        }
 5459        div
 5460    }
 5461
 5462    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5463        self.modal_layer.read(cx).has_active_modal()
 5464    }
 5465
 5466    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5467        self.modal_layer.read(cx).active_modal()
 5468    }
 5469
 5470    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5471    where
 5472        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5473    {
 5474        self.modal_layer.update(cx, |modal_layer, cx| {
 5475            modal_layer.toggle_modal(window, cx, build)
 5476        })
 5477    }
 5478
 5479    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 5480        self.toast_layer
 5481            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 5482    }
 5483
 5484    pub fn toggle_centered_layout(
 5485        &mut self,
 5486        _: &ToggleCenteredLayout,
 5487        _: &mut Window,
 5488        cx: &mut Context<Self>,
 5489    ) {
 5490        self.centered_layout = !self.centered_layout;
 5491        if let Some(database_id) = self.database_id() {
 5492            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 5493                .detach_and_log_err(cx);
 5494        }
 5495        cx.notify();
 5496    }
 5497
 5498    fn adjust_padding(padding: Option<f32>) -> f32 {
 5499        padding
 5500            .unwrap_or(Self::DEFAULT_PADDING)
 5501            .clamp(0.0, Self::MAX_PADDING)
 5502    }
 5503
 5504    fn render_dock(
 5505        &self,
 5506        position: DockPosition,
 5507        dock: &Entity<Dock>,
 5508        window: &mut Window,
 5509        cx: &mut App,
 5510    ) -> Option<Div> {
 5511        if self.zoomed_position == Some(position) {
 5512            return None;
 5513        }
 5514
 5515        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 5516            let pane = panel.pane(cx)?;
 5517            let follower_states = &self.follower_states;
 5518            leader_border_for_pane(follower_states, &pane, window, cx)
 5519        });
 5520
 5521        Some(
 5522            div()
 5523                .flex()
 5524                .flex_none()
 5525                .overflow_hidden()
 5526                .child(dock.clone())
 5527                .children(leader_border),
 5528        )
 5529    }
 5530
 5531    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 5532        window.root().flatten()
 5533    }
 5534
 5535    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 5536        self.zoomed.as_ref()
 5537    }
 5538
 5539    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 5540        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5541            return;
 5542        };
 5543        let windows = cx.windows();
 5544        let Some(next_window) = windows
 5545            .iter()
 5546            .cycle()
 5547            .skip_while(|window| window.window_id() != current_window_id)
 5548            .nth(1)
 5549        else {
 5550            return;
 5551        };
 5552        next_window
 5553            .update(cx, |_, window, _| window.activate_window())
 5554            .ok();
 5555    }
 5556
 5557    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 5558        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5559            return;
 5560        };
 5561        let windows = cx.windows();
 5562        let Some(prev_window) = windows
 5563            .iter()
 5564            .rev()
 5565            .cycle()
 5566            .skip_while(|window| window.window_id() != current_window_id)
 5567            .nth(1)
 5568        else {
 5569            return;
 5570        };
 5571        prev_window
 5572            .update(cx, |_, window, _| window.activate_window())
 5573            .ok();
 5574    }
 5575
 5576    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 5577        if cx.stop_active_drag(window) {
 5578            return;
 5579        } else if let Some((notification_id, _)) = self.notifications.pop() {
 5580            dismiss_app_notification(&notification_id, cx);
 5581        } else {
 5582            cx.emit(Event::ClearActivityIndicator);
 5583            cx.propagate();
 5584        }
 5585    }
 5586}
 5587
 5588fn leader_border_for_pane(
 5589    follower_states: &HashMap<CollaboratorId, FollowerState>,
 5590    pane: &Entity<Pane>,
 5591    _: &Window,
 5592    cx: &App,
 5593) -> Option<Div> {
 5594    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 5595        if state.pane() == pane {
 5596            Some((*leader_id, state))
 5597        } else {
 5598            None
 5599        }
 5600    })?;
 5601
 5602    let mut leader_color = match leader_id {
 5603        CollaboratorId::PeerId(leader_peer_id) => {
 5604            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 5605            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 5606
 5607            cx.theme()
 5608                .players()
 5609                .color_for_participant(leader.participant_index.0)
 5610                .cursor
 5611        }
 5612        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 5613    };
 5614    leader_color.fade_out(0.3);
 5615    Some(
 5616        div()
 5617            .absolute()
 5618            .size_full()
 5619            .left_0()
 5620            .top_0()
 5621            .border_2()
 5622            .border_color(leader_color),
 5623    )
 5624}
 5625
 5626fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 5627    ZED_WINDOW_POSITION
 5628        .zip(*ZED_WINDOW_SIZE)
 5629        .map(|(position, size)| Bounds {
 5630            origin: position,
 5631            size,
 5632        })
 5633}
 5634
 5635fn open_items(
 5636    serialized_workspace: Option<SerializedWorkspace>,
 5637    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 5638    window: &mut Window,
 5639    cx: &mut Context<Workspace>,
 5640) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 5641    let restored_items = serialized_workspace.map(|serialized_workspace| {
 5642        Workspace::load_workspace(
 5643            serialized_workspace,
 5644            project_paths_to_open
 5645                .iter()
 5646                .map(|(_, project_path)| project_path)
 5647                .cloned()
 5648                .collect(),
 5649            window,
 5650            cx,
 5651        )
 5652    });
 5653
 5654    cx.spawn_in(window, async move |workspace, cx| {
 5655        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 5656
 5657        if let Some(restored_items) = restored_items {
 5658            let restored_items = restored_items.await?;
 5659
 5660            let restored_project_paths = restored_items
 5661                .iter()
 5662                .filter_map(|item| {
 5663                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 5664                        .ok()
 5665                        .flatten()
 5666                })
 5667                .collect::<HashSet<_>>();
 5668
 5669            for restored_item in restored_items {
 5670                opened_items.push(restored_item.map(Ok));
 5671            }
 5672
 5673            project_paths_to_open
 5674                .iter_mut()
 5675                .for_each(|(_, project_path)| {
 5676                    if let Some(project_path_to_open) = project_path {
 5677                        if restored_project_paths.contains(project_path_to_open) {
 5678                            *project_path = None;
 5679                        }
 5680                    }
 5681                });
 5682        } else {
 5683            for _ in 0..project_paths_to_open.len() {
 5684                opened_items.push(None);
 5685            }
 5686        }
 5687        assert!(opened_items.len() == project_paths_to_open.len());
 5688
 5689        let tasks =
 5690            project_paths_to_open
 5691                .into_iter()
 5692                .enumerate()
 5693                .map(|(ix, (abs_path, project_path))| {
 5694                    let workspace = workspace.clone();
 5695                    cx.spawn(async move |cx| {
 5696                        let file_project_path = project_path?;
 5697                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 5698                            workspace.project().update(cx, |project, cx| {
 5699                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 5700                            })
 5701                        });
 5702
 5703                        // We only want to open file paths here. If one of the items
 5704                        // here is a directory, it was already opened further above
 5705                        // with a `find_or_create_worktree`.
 5706                        if let Ok(task) = abs_path_task {
 5707                            if task.await.map_or(true, |p| p.is_file()) {
 5708                                return Some((
 5709                                    ix,
 5710                                    workspace
 5711                                        .update_in(cx, |workspace, window, cx| {
 5712                                            workspace.open_path(
 5713                                                file_project_path,
 5714                                                None,
 5715                                                true,
 5716                                                window,
 5717                                                cx,
 5718                                            )
 5719                                        })
 5720                                        .log_err()?
 5721                                        .await,
 5722                                ));
 5723                            }
 5724                        }
 5725                        None
 5726                    })
 5727                });
 5728
 5729        let tasks = tasks.collect::<Vec<_>>();
 5730
 5731        let tasks = futures::future::join_all(tasks);
 5732        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 5733            opened_items[ix] = Some(path_open_result);
 5734        }
 5735
 5736        Ok(opened_items)
 5737    })
 5738}
 5739
 5740enum ActivateInDirectionTarget {
 5741    Pane(Entity<Pane>),
 5742    Dock(Entity<Dock>),
 5743}
 5744
 5745fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 5746    workspace
 5747        .update(cx, |workspace, _, cx| {
 5748            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 5749                struct DatabaseFailedNotification;
 5750
 5751                workspace.show_notification(
 5752                    NotificationId::unique::<DatabaseFailedNotification>(),
 5753                    cx,
 5754                    |cx| {
 5755                        cx.new(|cx| {
 5756                            MessageNotification::new("Failed to load the database file.", cx)
 5757                                .primary_message("File an Issue")
 5758                                .primary_icon(IconName::Plus)
 5759                                .primary_on_click(|window, cx| {
 5760                                    window.dispatch_action(Box::new(FileBugReport), cx)
 5761                                })
 5762                        })
 5763                    },
 5764                );
 5765            }
 5766        })
 5767        .log_err();
 5768}
 5769
 5770impl Focusable for Workspace {
 5771    fn focus_handle(&self, cx: &App) -> FocusHandle {
 5772        self.active_pane.focus_handle(cx)
 5773    }
 5774}
 5775
 5776#[derive(Clone)]
 5777struct DraggedDock(DockPosition);
 5778
 5779impl Render for DraggedDock {
 5780    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 5781        gpui::Empty
 5782    }
 5783}
 5784
 5785impl Render for Workspace {
 5786    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 5787        let mut context = KeyContext::new_with_defaults();
 5788        context.add("Workspace");
 5789        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 5790        if let Some(status) = self
 5791            .debugger_provider
 5792            .as_ref()
 5793            .and_then(|provider| provider.active_thread_state(cx))
 5794        {
 5795            match status {
 5796                ThreadStatus::Running | ThreadStatus::Stepping => {
 5797                    context.add("debugger_running");
 5798                }
 5799                ThreadStatus::Stopped => context.add("debugger_stopped"),
 5800                ThreadStatus::Exited | ThreadStatus::Ended => {}
 5801            }
 5802        }
 5803
 5804        let centered_layout = self.centered_layout
 5805            && self.center.panes().len() == 1
 5806            && self.active_item(cx).is_some();
 5807        let render_padding = |size| {
 5808            (size > 0.0).then(|| {
 5809                div()
 5810                    .h_full()
 5811                    .w(relative(size))
 5812                    .bg(cx.theme().colors().editor_background)
 5813                    .border_color(cx.theme().colors().pane_group_border)
 5814            })
 5815        };
 5816        let paddings = if centered_layout {
 5817            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 5818            (
 5819                render_padding(Self::adjust_padding(settings.left_padding)),
 5820                render_padding(Self::adjust_padding(settings.right_padding)),
 5821            )
 5822        } else {
 5823            (None, None)
 5824        };
 5825        let ui_font = theme::setup_ui_font(window, cx);
 5826
 5827        let theme = cx.theme().clone();
 5828        let colors = theme.colors();
 5829        let notification_entities = self
 5830            .notifications
 5831            .iter()
 5832            .map(|(_, notification)| notification.entity_id())
 5833            .collect::<Vec<_>>();
 5834
 5835        client_side_decorations(
 5836            self.actions(div(), window, cx)
 5837                .key_context(context)
 5838                .relative()
 5839                .size_full()
 5840                .flex()
 5841                .flex_col()
 5842                .font(ui_font)
 5843                .gap_0()
 5844                .justify_start()
 5845                .items_start()
 5846                .text_color(colors.text)
 5847                .overflow_hidden()
 5848                .children(self.titlebar_item.clone())
 5849                .on_modifiers_changed(move |_, _, cx| {
 5850                    for &id in &notification_entities {
 5851                        cx.notify(id);
 5852                    }
 5853                })
 5854                .child(
 5855                    div()
 5856                        .size_full()
 5857                        .relative()
 5858                        .flex_1()
 5859                        .flex()
 5860                        .flex_col()
 5861                        .child(
 5862                            div()
 5863                                .id("workspace")
 5864                                .bg(colors.background)
 5865                                .relative()
 5866                                .flex_1()
 5867                                .w_full()
 5868                                .flex()
 5869                                .flex_col()
 5870                                .overflow_hidden()
 5871                                .border_t_1()
 5872                                .border_b_1()
 5873                                .border_color(colors.border)
 5874                                .child({
 5875                                    let this = cx.entity().clone();
 5876                                    canvas(
 5877                                        move |bounds, window, cx| {
 5878                                            this.update(cx, |this, cx| {
 5879                                                let bounds_changed = this.bounds != bounds;
 5880                                                this.bounds = bounds;
 5881
 5882                                                if bounds_changed {
 5883                                                    this.left_dock.update(cx, |dock, cx| {
 5884                                                        dock.clamp_panel_size(
 5885                                                            bounds.size.width,
 5886                                                            window,
 5887                                                            cx,
 5888                                                        )
 5889                                                    });
 5890
 5891                                                    this.right_dock.update(cx, |dock, cx| {
 5892                                                        dock.clamp_panel_size(
 5893                                                            bounds.size.width,
 5894                                                            window,
 5895                                                            cx,
 5896                                                        )
 5897                                                    });
 5898
 5899                                                    this.bottom_dock.update(cx, |dock, cx| {
 5900                                                        dock.clamp_panel_size(
 5901                                                            bounds.size.height,
 5902                                                            window,
 5903                                                            cx,
 5904                                                        )
 5905                                                    });
 5906                                                }
 5907                                            })
 5908                                        },
 5909                                        |_, _, _, _| {},
 5910                                    )
 5911                                    .absolute()
 5912                                    .size_full()
 5913                                })
 5914                                .when(self.zoomed.is_none(), |this| {
 5915                                    this.on_drag_move(cx.listener(
 5916                                        move |workspace,
 5917                                              e: &DragMoveEvent<DraggedDock>,
 5918                                              window,
 5919                                              cx| {
 5920                                            if workspace.previous_dock_drag_coordinates
 5921                                                != Some(e.event.position)
 5922                                            {
 5923                                                workspace.previous_dock_drag_coordinates =
 5924                                                    Some(e.event.position);
 5925                                                match e.drag(cx).0 {
 5926                                                    DockPosition::Left => {
 5927                                                        resize_left_dock(
 5928                                                            e.event.position.x
 5929                                                                - workspace.bounds.left(),
 5930                                                            workspace,
 5931                                                            window,
 5932                                                            cx,
 5933                                                        );
 5934                                                    }
 5935                                                    DockPosition::Right => {
 5936                                                        resize_right_dock(
 5937                                                            workspace.bounds.right()
 5938                                                                - e.event.position.x,
 5939                                                            workspace,
 5940                                                            window,
 5941                                                            cx,
 5942                                                        );
 5943                                                    }
 5944                                                    DockPosition::Bottom => {
 5945                                                        resize_bottom_dock(
 5946                                                            workspace.bounds.bottom()
 5947                                                                - e.event.position.y,
 5948                                                            workspace,
 5949                                                            window,
 5950                                                            cx,
 5951                                                        );
 5952                                                    }
 5953                                                };
 5954                                                workspace.serialize_workspace(window, cx);
 5955                                            }
 5956                                        },
 5957                                    ))
 5958                                })
 5959                                .child({
 5960                                    match self.bottom_dock_layout {
 5961                                        BottomDockLayout::Full => div()
 5962                                            .flex()
 5963                                            .flex_col()
 5964                                            .h_full()
 5965                                            .child(
 5966                                                div()
 5967                                                    .flex()
 5968                                                    .flex_row()
 5969                                                    .flex_1()
 5970                                                    .overflow_hidden()
 5971                                                    .children(self.render_dock(
 5972                                                        DockPosition::Left,
 5973                                                        &self.left_dock,
 5974                                                        window,
 5975                                                        cx,
 5976                                                    ))
 5977                                                    .child(
 5978                                                        div()
 5979                                                            .flex()
 5980                                                            .flex_col()
 5981                                                            .flex_1()
 5982                                                            .overflow_hidden()
 5983                                                            .child(
 5984                                                                h_flex()
 5985                                                                    .flex_1()
 5986                                                                    .when_some(
 5987                                                                        paddings.0,
 5988                                                                        |this, p| {
 5989                                                                            this.child(
 5990                                                                                p.border_r_1(),
 5991                                                                            )
 5992                                                                        },
 5993                                                                    )
 5994                                                                    .child(self.center.render(
 5995                                                                        self.zoomed.as_ref(),
 5996                                                                        &PaneRenderContext {
 5997                                                                            follower_states:
 5998                                                                                &self.follower_states,
 5999                                                                            active_call: self.active_call(),
 6000                                                                            active_pane: &self.active_pane,
 6001                                                                            app_state: &self.app_state,
 6002                                                                            project: &self.project,
 6003                                                                            workspace: &self.weak_self,
 6004                                                                        },
 6005                                                                        window,
 6006                                                                        cx,
 6007                                                                    ))
 6008                                                                    .when_some(
 6009                                                                        paddings.1,
 6010                                                                        |this, p| {
 6011                                                                            this.child(
 6012                                                                                p.border_l_1(),
 6013                                                                            )
 6014                                                                        },
 6015                                                                    ),
 6016                                                            ),
 6017                                                    )
 6018                                                    .children(self.render_dock(
 6019                                                        DockPosition::Right,
 6020                                                        &self.right_dock,
 6021                                                        window,
 6022                                                        cx,
 6023                                                    )),
 6024                                            )
 6025                                            .child(div().w_full().children(self.render_dock(
 6026                                                DockPosition::Bottom,
 6027                                                &self.bottom_dock,
 6028                                                window,
 6029                                                cx
 6030                                            ))),
 6031
 6032                                        BottomDockLayout::LeftAligned => div()
 6033                                            .flex()
 6034                                            .flex_row()
 6035                                            .h_full()
 6036                                            .child(
 6037                                                div()
 6038                                                    .flex()
 6039                                                    .flex_col()
 6040                                                    .flex_1()
 6041                                                    .h_full()
 6042                                                    .child(
 6043                                                        div()
 6044                                                            .flex()
 6045                                                            .flex_row()
 6046                                                            .flex_1()
 6047                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6048                                                            .child(
 6049                                                                div()
 6050                                                                    .flex()
 6051                                                                    .flex_col()
 6052                                                                    .flex_1()
 6053                                                                    .overflow_hidden()
 6054                                                                    .child(
 6055                                                                        h_flex()
 6056                                                                            .flex_1()
 6057                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6058                                                                            .child(self.center.render(
 6059                                                                                self.zoomed.as_ref(),
 6060                                                                                &PaneRenderContext {
 6061                                                                                    follower_states:
 6062                                                                                        &self.follower_states,
 6063                                                                                    active_call: self.active_call(),
 6064                                                                                    active_pane: &self.active_pane,
 6065                                                                                    app_state: &self.app_state,
 6066                                                                                    project: &self.project,
 6067                                                                                    workspace: &self.weak_self,
 6068                                                                                },
 6069                                                                                window,
 6070                                                                                cx,
 6071                                                                            ))
 6072                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6073                                                                    )
 6074                                                            )
 6075                                                    )
 6076                                                    .child(
 6077                                                        div()
 6078                                                            .w_full()
 6079                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6080                                                    ),
 6081                                            )
 6082                                            .children(self.render_dock(
 6083                                                DockPosition::Right,
 6084                                                &self.right_dock,
 6085                                                window,
 6086                                                cx,
 6087                                            )),
 6088
 6089                                        BottomDockLayout::RightAligned => div()
 6090                                            .flex()
 6091                                            .flex_row()
 6092                                            .h_full()
 6093                                            .children(self.render_dock(
 6094                                                DockPosition::Left,
 6095                                                &self.left_dock,
 6096                                                window,
 6097                                                cx,
 6098                                            ))
 6099                                            .child(
 6100                                                div()
 6101                                                    .flex()
 6102                                                    .flex_col()
 6103                                                    .flex_1()
 6104                                                    .h_full()
 6105                                                    .child(
 6106                                                        div()
 6107                                                            .flex()
 6108                                                            .flex_row()
 6109                                                            .flex_1()
 6110                                                            .child(
 6111                                                                div()
 6112                                                                    .flex()
 6113                                                                    .flex_col()
 6114                                                                    .flex_1()
 6115                                                                    .overflow_hidden()
 6116                                                                    .child(
 6117                                                                        h_flex()
 6118                                                                            .flex_1()
 6119                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6120                                                                            .child(self.center.render(
 6121                                                                                self.zoomed.as_ref(),
 6122                                                                                &PaneRenderContext {
 6123                                                                                    follower_states:
 6124                                                                                        &self.follower_states,
 6125                                                                                    active_call: self.active_call(),
 6126                                                                                    active_pane: &self.active_pane,
 6127                                                                                    app_state: &self.app_state,
 6128                                                                                    project: &self.project,
 6129                                                                                    workspace: &self.weak_self,
 6130                                                                                },
 6131                                                                                window,
 6132                                                                                cx,
 6133                                                                            ))
 6134                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6135                                                                    )
 6136                                                            )
 6137                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6138                                                    )
 6139                                                    .child(
 6140                                                        div()
 6141                                                            .w_full()
 6142                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6143                                                    ),
 6144                                            ),
 6145
 6146                                        BottomDockLayout::Contained => div()
 6147                                            .flex()
 6148                                            .flex_row()
 6149                                            .h_full()
 6150                                            .children(self.render_dock(
 6151                                                DockPosition::Left,
 6152                                                &self.left_dock,
 6153                                                window,
 6154                                                cx,
 6155                                            ))
 6156                                            .child(
 6157                                                div()
 6158                                                    .flex()
 6159                                                    .flex_col()
 6160                                                    .flex_1()
 6161                                                    .overflow_hidden()
 6162                                                    .child(
 6163                                                        h_flex()
 6164                                                            .flex_1()
 6165                                                            .when_some(paddings.0, |this, p| {
 6166                                                                this.child(p.border_r_1())
 6167                                                            })
 6168                                                            .child(self.center.render(
 6169                                                                self.zoomed.as_ref(),
 6170                                                                &PaneRenderContext {
 6171                                                                    follower_states:
 6172                                                                        &self.follower_states,
 6173                                                                    active_call: self.active_call(),
 6174                                                                    active_pane: &self.active_pane,
 6175                                                                    app_state: &self.app_state,
 6176                                                                    project: &self.project,
 6177                                                                    workspace: &self.weak_self,
 6178                                                                },
 6179                                                                window,
 6180                                                                cx,
 6181                                                            ))
 6182                                                            .when_some(paddings.1, |this, p| {
 6183                                                                this.child(p.border_l_1())
 6184                                                            }),
 6185                                                    )
 6186                                                    .children(self.render_dock(
 6187                                                        DockPosition::Bottom,
 6188                                                        &self.bottom_dock,
 6189                                                        window,
 6190                                                        cx,
 6191                                                    )),
 6192                                            )
 6193                                            .children(self.render_dock(
 6194                                                DockPosition::Right,
 6195                                                &self.right_dock,
 6196                                                window,
 6197                                                cx,
 6198                                            )),
 6199                                    }
 6200                                })
 6201                                .children(self.zoomed.as_ref().and_then(|view| {
 6202                                    let zoomed_view = view.upgrade()?;
 6203                                    let div = div()
 6204                                        .occlude()
 6205                                        .absolute()
 6206                                        .overflow_hidden()
 6207                                        .border_color(colors.border)
 6208                                        .bg(colors.background)
 6209                                        .child(zoomed_view)
 6210                                        .inset_0()
 6211                                        .shadow_lg();
 6212
 6213                                    Some(match self.zoomed_position {
 6214                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 6215                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 6216                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 6217                                        None => {
 6218                                            div.top_2().bottom_2().left_2().right_2().border_1()
 6219                                        }
 6220                                    })
 6221                                }))
 6222                                .children(self.render_notifications(window, cx)),
 6223                        )
 6224                        .child(self.status_bar.clone())
 6225                        .child(self.modal_layer.clone())
 6226                        .child(self.toast_layer.clone()),
 6227                ),
 6228            window,
 6229            cx,
 6230        )
 6231    }
 6232}
 6233
 6234fn resize_bottom_dock(
 6235    new_size: Pixels,
 6236    workspace: &mut Workspace,
 6237    window: &mut Window,
 6238    cx: &mut App,
 6239) {
 6240    let size =
 6241        new_size.min(workspace.bounds.bottom() - RESIZE_HANDLE_SIZE - workspace.bounds.top());
 6242    workspace.bottom_dock.update(cx, |bottom_dock, cx| {
 6243        bottom_dock.resize_active_panel(Some(size), window, cx);
 6244    });
 6245}
 6246
 6247fn resize_right_dock(
 6248    new_size: Pixels,
 6249    workspace: &mut Workspace,
 6250    window: &mut Window,
 6251    cx: &mut App,
 6252) {
 6253    let size = new_size.max(workspace.bounds.left() - RESIZE_HANDLE_SIZE);
 6254    workspace.right_dock.update(cx, |right_dock, cx| {
 6255        right_dock.resize_active_panel(Some(size), window, cx);
 6256    });
 6257}
 6258
 6259fn resize_left_dock(
 6260    new_size: Pixels,
 6261    workspace: &mut Workspace,
 6262    window: &mut Window,
 6263    cx: &mut App,
 6264) {
 6265    let size = new_size.min(workspace.bounds.right() - RESIZE_HANDLE_SIZE);
 6266
 6267    workspace.left_dock.update(cx, |left_dock, cx| {
 6268        left_dock.resize_active_panel(Some(size), window, cx);
 6269    });
 6270}
 6271
 6272impl WorkspaceStore {
 6273    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6274        Self {
 6275            workspaces: Default::default(),
 6276            _subscriptions: vec![
 6277                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6278                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6279            ],
 6280            client,
 6281        }
 6282    }
 6283
 6284    pub fn update_followers(
 6285        &self,
 6286        project_id: Option<u64>,
 6287        update: proto::update_followers::Variant,
 6288        cx: &App,
 6289    ) -> Option<()> {
 6290        let active_call = ActiveCall::try_global(cx)?;
 6291        let room_id = active_call.read(cx).room()?.read(cx).id();
 6292        self.client
 6293            .send(proto::UpdateFollowers {
 6294                room_id,
 6295                project_id,
 6296                variant: Some(update),
 6297            })
 6298            .log_err()
 6299    }
 6300
 6301    pub async fn handle_follow(
 6302        this: Entity<Self>,
 6303        envelope: TypedEnvelope<proto::Follow>,
 6304        mut cx: AsyncApp,
 6305    ) -> Result<proto::FollowResponse> {
 6306        this.update(&mut cx, |this, cx| {
 6307            let follower = Follower {
 6308                project_id: envelope.payload.project_id,
 6309                peer_id: envelope.original_sender_id()?,
 6310            };
 6311
 6312            let mut response = proto::FollowResponse::default();
 6313            this.workspaces.retain(|workspace| {
 6314                workspace
 6315                    .update(cx, |workspace, window, cx| {
 6316                        let handler_response =
 6317                            workspace.handle_follow(follower.project_id, window, cx);
 6318                        if let Some(active_view) = handler_response.active_view.clone() {
 6319                            if workspace.project.read(cx).remote_id() == follower.project_id {
 6320                                response.active_view = Some(active_view)
 6321                            }
 6322                        }
 6323                    })
 6324                    .is_ok()
 6325            });
 6326
 6327            Ok(response)
 6328        })?
 6329    }
 6330
 6331    async fn handle_update_followers(
 6332        this: Entity<Self>,
 6333        envelope: TypedEnvelope<proto::UpdateFollowers>,
 6334        mut cx: AsyncApp,
 6335    ) -> Result<()> {
 6336        let leader_id = envelope.original_sender_id()?;
 6337        let update = envelope.payload;
 6338
 6339        this.update(&mut cx, |this, cx| {
 6340            this.workspaces.retain(|workspace| {
 6341                workspace
 6342                    .update(cx, |workspace, window, cx| {
 6343                        let project_id = workspace.project.read(cx).remote_id();
 6344                        if update.project_id != project_id && update.project_id.is_some() {
 6345                            return;
 6346                        }
 6347                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 6348                    })
 6349                    .is_ok()
 6350            });
 6351            Ok(())
 6352        })?
 6353    }
 6354}
 6355
 6356impl ViewId {
 6357    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 6358        Ok(Self {
 6359            creator: message
 6360                .creator
 6361                .map(CollaboratorId::PeerId)
 6362                .context("creator is missing")?,
 6363            id: message.id,
 6364        })
 6365    }
 6366
 6367    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 6368        if let CollaboratorId::PeerId(peer_id) = self.creator {
 6369            Some(proto::ViewId {
 6370                creator: Some(peer_id),
 6371                id: self.id,
 6372            })
 6373        } else {
 6374            None
 6375        }
 6376    }
 6377}
 6378
 6379impl FollowerState {
 6380    fn pane(&self) -> &Entity<Pane> {
 6381        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 6382    }
 6383}
 6384
 6385pub trait WorkspaceHandle {
 6386    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 6387}
 6388
 6389impl WorkspaceHandle for Entity<Workspace> {
 6390    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 6391        self.read(cx)
 6392            .worktrees(cx)
 6393            .flat_map(|worktree| {
 6394                let worktree_id = worktree.read(cx).id();
 6395                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 6396                    worktree_id,
 6397                    path: f.path.clone(),
 6398                })
 6399            })
 6400            .collect::<Vec<_>>()
 6401    }
 6402}
 6403
 6404impl std::fmt::Debug for OpenPaths {
 6405    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 6406        f.debug_struct("OpenPaths")
 6407            .field("paths", &self.paths)
 6408            .finish()
 6409    }
 6410}
 6411
 6412pub async fn last_opened_workspace_location() -> Option<SerializedWorkspaceLocation> {
 6413    DB.last_workspace().await.log_err().flatten()
 6414}
 6415
 6416pub fn last_session_workspace_locations(
 6417    last_session_id: &str,
 6418    last_session_window_stack: Option<Vec<WindowId>>,
 6419) -> Option<Vec<SerializedWorkspaceLocation>> {
 6420    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 6421        .log_err()
 6422}
 6423
 6424actions!(
 6425    collab,
 6426    [
 6427        OpenChannelNotes,
 6428        Mute,
 6429        Deafen,
 6430        LeaveCall,
 6431        ShareProject,
 6432        ScreenShare
 6433    ]
 6434);
 6435actions!(zed, [OpenLog]);
 6436
 6437async fn join_channel_internal(
 6438    channel_id: ChannelId,
 6439    app_state: &Arc<AppState>,
 6440    requesting_window: Option<WindowHandle<Workspace>>,
 6441    active_call: &Entity<ActiveCall>,
 6442    cx: &mut AsyncApp,
 6443) -> Result<bool> {
 6444    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 6445        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 6446            return (false, None);
 6447        };
 6448
 6449        let already_in_channel = room.channel_id() == Some(channel_id);
 6450        let should_prompt = room.is_sharing_project()
 6451            && !room.remote_participants().is_empty()
 6452            && !already_in_channel;
 6453        let open_room = if already_in_channel {
 6454            active_call.room().cloned()
 6455        } else {
 6456            None
 6457        };
 6458        (should_prompt, open_room)
 6459    })?;
 6460
 6461    if let Some(room) = open_room {
 6462        let task = room.update(cx, |room, cx| {
 6463            if let Some((project, host)) = room.most_active_project(cx) {
 6464                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6465            }
 6466
 6467            None
 6468        })?;
 6469        if let Some(task) = task {
 6470            task.await?;
 6471        }
 6472        return anyhow::Ok(true);
 6473    }
 6474
 6475    if should_prompt {
 6476        if let Some(workspace) = requesting_window {
 6477            let answer = workspace
 6478                .update(cx, |_, window, cx| {
 6479                    window.prompt(
 6480                        PromptLevel::Warning,
 6481                        "Do you want to switch channels?",
 6482                        Some("Leaving this call will unshare your current project."),
 6483                        &["Yes, Join Channel", "Cancel"],
 6484                        cx,
 6485                    )
 6486                })?
 6487                .await;
 6488
 6489            if answer == Ok(1) {
 6490                return Ok(false);
 6491            }
 6492        } else {
 6493            return Ok(false); // unreachable!() hopefully
 6494        }
 6495    }
 6496
 6497    let client = cx.update(|cx| active_call.read(cx).client())?;
 6498
 6499    let mut client_status = client.status();
 6500
 6501    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 6502    'outer: loop {
 6503        let Some(status) = client_status.recv().await else {
 6504            anyhow::bail!("error connecting");
 6505        };
 6506
 6507        match status {
 6508            Status::Connecting
 6509            | Status::Authenticating
 6510            | Status::Reconnecting
 6511            | Status::Reauthenticating => continue,
 6512            Status::Connected { .. } => break 'outer,
 6513            Status::SignedOut => return Err(ErrorCode::SignedOut.into()),
 6514            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 6515            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 6516                return Err(ErrorCode::Disconnected.into());
 6517            }
 6518        }
 6519    }
 6520
 6521    let room = active_call
 6522        .update(cx, |active_call, cx| {
 6523            active_call.join_channel(channel_id, cx)
 6524        })?
 6525        .await?;
 6526
 6527    let Some(room) = room else {
 6528        return anyhow::Ok(true);
 6529    };
 6530
 6531    room.update(cx, |room, _| room.room_update_completed())?
 6532        .await;
 6533
 6534    let task = room.update(cx, |room, cx| {
 6535        if let Some((project, host)) = room.most_active_project(cx) {
 6536            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6537        }
 6538
 6539        // If you are the first to join a channel, see if you should share your project.
 6540        if room.remote_participants().is_empty() && !room.local_participant_is_guest() {
 6541            if let Some(workspace) = requesting_window {
 6542                let project = workspace.update(cx, |workspace, _, cx| {
 6543                    let project = workspace.project.read(cx);
 6544
 6545                    if !CallSettings::get_global(cx).share_on_join {
 6546                        return None;
 6547                    }
 6548
 6549                    if (project.is_local() || project.is_via_ssh())
 6550                        && project.visible_worktrees(cx).any(|tree| {
 6551                            tree.read(cx)
 6552                                .root_entry()
 6553                                .map_or(false, |entry| entry.is_dir())
 6554                        })
 6555                    {
 6556                        Some(workspace.project.clone())
 6557                    } else {
 6558                        None
 6559                    }
 6560                });
 6561                if let Ok(Some(project)) = project {
 6562                    return Some(cx.spawn(async move |room, cx| {
 6563                        room.update(cx, |room, cx| room.share_project(project, cx))?
 6564                            .await?;
 6565                        Ok(())
 6566                    }));
 6567                }
 6568            }
 6569        }
 6570
 6571        None
 6572    })?;
 6573    if let Some(task) = task {
 6574        task.await?;
 6575        return anyhow::Ok(true);
 6576    }
 6577    anyhow::Ok(false)
 6578}
 6579
 6580pub fn join_channel(
 6581    channel_id: ChannelId,
 6582    app_state: Arc<AppState>,
 6583    requesting_window: Option<WindowHandle<Workspace>>,
 6584    cx: &mut App,
 6585) -> Task<Result<()>> {
 6586    let active_call = ActiveCall::global(cx);
 6587    cx.spawn(async move |cx| {
 6588        let result = join_channel_internal(
 6589            channel_id,
 6590            &app_state,
 6591            requesting_window,
 6592            &active_call,
 6593             cx,
 6594        )
 6595            .await;
 6596
 6597        // join channel succeeded, and opened a window
 6598        if matches!(result, Ok(true)) {
 6599            return anyhow::Ok(());
 6600        }
 6601
 6602        // find an existing workspace to focus and show call controls
 6603        let mut active_window =
 6604            requesting_window.or_else(|| activate_any_workspace_window( cx));
 6605        if active_window.is_none() {
 6606            // no open workspaces, make one to show the error in (blergh)
 6607            let (window_handle, _) = cx
 6608                .update(|cx| {
 6609                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 6610                })?
 6611                .await?;
 6612
 6613            if result.is_ok() {
 6614                cx.update(|cx| {
 6615                    cx.dispatch_action(&OpenChannelNotes);
 6616                }).log_err();
 6617            }
 6618
 6619            active_window = Some(window_handle);
 6620        }
 6621
 6622        if let Err(err) = result {
 6623            log::error!("failed to join channel: {}", err);
 6624            if let Some(active_window) = active_window {
 6625                active_window
 6626                    .update(cx, |_, window, cx| {
 6627                        let detail: SharedString = match err.error_code() {
 6628                            ErrorCode::SignedOut => {
 6629                                "Please sign in to continue.".into()
 6630                            }
 6631                            ErrorCode::UpgradeRequired => {
 6632                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 6633                            }
 6634                            ErrorCode::NoSuchChannel => {
 6635                                "No matching channel was found. Please check the link and try again.".into()
 6636                            }
 6637                            ErrorCode::Forbidden => {
 6638                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 6639                            }
 6640                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 6641                            _ => format!("{}\n\nPlease try again.", err).into(),
 6642                        };
 6643                        window.prompt(
 6644                            PromptLevel::Critical,
 6645                            "Failed to join channel",
 6646                            Some(&detail),
 6647                            &["Ok"],
 6648                        cx)
 6649                    })?
 6650                    .await
 6651                    .ok();
 6652            }
 6653        }
 6654
 6655        // return ok, we showed the error to the user.
 6656        anyhow::Ok(())
 6657    })
 6658}
 6659
 6660pub async fn get_any_active_workspace(
 6661    app_state: Arc<AppState>,
 6662    mut cx: AsyncApp,
 6663) -> anyhow::Result<WindowHandle<Workspace>> {
 6664    // find an existing workspace to focus and show call controls
 6665    let active_window = activate_any_workspace_window(&mut cx);
 6666    if active_window.is_none() {
 6667        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 6668            .await?;
 6669    }
 6670    activate_any_workspace_window(&mut cx).context("could not open zed")
 6671}
 6672
 6673fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 6674    cx.update(|cx| {
 6675        if let Some(workspace_window) = cx
 6676            .active_window()
 6677            .and_then(|window| window.downcast::<Workspace>())
 6678        {
 6679            return Some(workspace_window);
 6680        }
 6681
 6682        for window in cx.windows() {
 6683            if let Some(workspace_window) = window.downcast::<Workspace>() {
 6684                workspace_window
 6685                    .update(cx, |_, window, _| window.activate_window())
 6686                    .ok();
 6687                return Some(workspace_window);
 6688            }
 6689        }
 6690        None
 6691    })
 6692    .ok()
 6693    .flatten()
 6694}
 6695
 6696pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 6697    cx.windows()
 6698        .into_iter()
 6699        .filter_map(|window| window.downcast::<Workspace>())
 6700        .filter(|workspace| {
 6701            workspace
 6702                .read(cx)
 6703                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 6704        })
 6705        .collect()
 6706}
 6707
 6708#[derive(Default)]
 6709pub struct OpenOptions {
 6710    pub visible: Option<OpenVisible>,
 6711    pub focus: Option<bool>,
 6712    pub open_new_workspace: Option<bool>,
 6713    pub replace_window: Option<WindowHandle<Workspace>>,
 6714    pub env: Option<HashMap<String, String>>,
 6715}
 6716
 6717#[allow(clippy::type_complexity)]
 6718pub fn open_paths(
 6719    abs_paths: &[PathBuf],
 6720    app_state: Arc<AppState>,
 6721    open_options: OpenOptions,
 6722    cx: &mut App,
 6723) -> Task<
 6724    anyhow::Result<(
 6725        WindowHandle<Workspace>,
 6726        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 6727    )>,
 6728> {
 6729    let abs_paths = abs_paths.to_vec();
 6730    let mut existing = None;
 6731    let mut best_match = None;
 6732    let mut open_visible = OpenVisible::All;
 6733
 6734    cx.spawn(async move |cx| {
 6735        if open_options.open_new_workspace != Some(true) {
 6736            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 6737            let all_metadatas = futures::future::join_all(all_paths)
 6738                .await
 6739                .into_iter()
 6740                .filter_map(|result| result.ok().flatten())
 6741                .collect::<Vec<_>>();
 6742
 6743            cx.update(|cx| {
 6744                for window in local_workspace_windows(&cx) {
 6745                    if let Ok(workspace) = window.read(&cx) {
 6746                        let m = workspace.project.read(&cx).visibility_for_paths(
 6747                            &abs_paths,
 6748                            &all_metadatas,
 6749                            open_options.open_new_workspace == None,
 6750                            cx,
 6751                        );
 6752                        if m > best_match {
 6753                            existing = Some(window);
 6754                            best_match = m;
 6755                        } else if best_match.is_none()
 6756                            && open_options.open_new_workspace == Some(false)
 6757                        {
 6758                            existing = Some(window)
 6759                        }
 6760                    }
 6761                }
 6762            })?;
 6763
 6764            if open_options.open_new_workspace.is_none() && existing.is_none() {
 6765                if all_metadatas.iter().all(|file| !file.is_dir) {
 6766                    cx.update(|cx| {
 6767                        if let Some(window) = cx
 6768                            .active_window()
 6769                            .and_then(|window| window.downcast::<Workspace>())
 6770                        {
 6771                            if let Ok(workspace) = window.read(cx) {
 6772                                let project = workspace.project().read(cx);
 6773                                if project.is_local() && !project.is_via_collab() {
 6774                                    existing = Some(window);
 6775                                    open_visible = OpenVisible::None;
 6776                                    return;
 6777                                }
 6778                            }
 6779                        }
 6780                        for window in local_workspace_windows(cx) {
 6781                            if let Ok(workspace) = window.read(cx) {
 6782                                let project = workspace.project().read(cx);
 6783                                if project.is_via_collab() {
 6784                                    continue;
 6785                                }
 6786                                existing = Some(window);
 6787                                open_visible = OpenVisible::None;
 6788                                break;
 6789                            }
 6790                        }
 6791                    })?;
 6792                }
 6793            }
 6794        }
 6795
 6796        if let Some(existing) = existing {
 6797            let open_task = existing
 6798                .update(cx, |workspace, window, cx| {
 6799                    window.activate_window();
 6800                    workspace.open_paths(
 6801                        abs_paths,
 6802                        OpenOptions {
 6803                            visible: Some(open_visible),
 6804                            ..Default::default()
 6805                        },
 6806                        None,
 6807                        window,
 6808                        cx,
 6809                    )
 6810                })?
 6811                .await;
 6812
 6813            _ = existing.update(cx, |workspace, _, cx| {
 6814                for item in open_task.iter().flatten() {
 6815                    if let Err(e) = item {
 6816                        workspace.show_error(&e, cx);
 6817                    }
 6818                }
 6819            });
 6820
 6821            Ok((existing, open_task))
 6822        } else {
 6823            cx.update(move |cx| {
 6824                Workspace::new_local(
 6825                    abs_paths,
 6826                    app_state.clone(),
 6827                    open_options.replace_window,
 6828                    open_options.env,
 6829                    cx,
 6830                )
 6831            })?
 6832            .await
 6833        }
 6834    })
 6835}
 6836
 6837pub fn open_new(
 6838    open_options: OpenOptions,
 6839    app_state: Arc<AppState>,
 6840    cx: &mut App,
 6841    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 6842) -> Task<anyhow::Result<()>> {
 6843    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 6844    cx.spawn(async move |cx| {
 6845        let (workspace, opened_paths) = task.await?;
 6846        workspace.update(cx, |workspace, window, cx| {
 6847            if opened_paths.is_empty() {
 6848                init(workspace, window, cx)
 6849            }
 6850        })?;
 6851        Ok(())
 6852    })
 6853}
 6854
 6855pub fn create_and_open_local_file(
 6856    path: &'static Path,
 6857    window: &mut Window,
 6858    cx: &mut Context<Workspace>,
 6859    default_content: impl 'static + Send + FnOnce() -> Rope,
 6860) -> Task<Result<Box<dyn ItemHandle>>> {
 6861    cx.spawn_in(window, async move |workspace, cx| {
 6862        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 6863        if !fs.is_file(path).await {
 6864            fs.create_file(path, Default::default()).await?;
 6865            fs.save(path, &default_content(), Default::default())
 6866                .await?;
 6867        }
 6868
 6869        let mut items = workspace
 6870            .update_in(cx, |workspace, window, cx| {
 6871                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 6872                    workspace.open_paths(
 6873                        vec![path.to_path_buf()],
 6874                        OpenOptions {
 6875                            visible: Some(OpenVisible::None),
 6876                            ..Default::default()
 6877                        },
 6878                        None,
 6879                        window,
 6880                        cx,
 6881                    )
 6882                })
 6883            })?
 6884            .await?
 6885            .await;
 6886
 6887        let item = items.pop().flatten();
 6888        item.with_context(|| format!("path {path:?} is not a file"))?
 6889    })
 6890}
 6891
 6892pub fn open_ssh_project_with_new_connection(
 6893    window: WindowHandle<Workspace>,
 6894    connection_options: SshConnectionOptions,
 6895    cancel_rx: oneshot::Receiver<()>,
 6896    delegate: Arc<dyn SshClientDelegate>,
 6897    app_state: Arc<AppState>,
 6898    paths: Vec<PathBuf>,
 6899    cx: &mut App,
 6900) -> Task<Result<()>> {
 6901    cx.spawn(async move |cx| {
 6902        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 6903            serialize_ssh_project(connection_options.clone(), paths.clone(), &cx).await?;
 6904
 6905        let session = match cx
 6906            .update(|cx| {
 6907                remote::SshRemoteClient::new(
 6908                    ConnectionIdentifier::Workspace(workspace_id.0),
 6909                    connection_options,
 6910                    cancel_rx,
 6911                    delegate,
 6912                    cx,
 6913                )
 6914            })?
 6915            .await?
 6916        {
 6917            Some(result) => result,
 6918            None => return Ok(()),
 6919        };
 6920
 6921        let project = cx.update(|cx| {
 6922            project::Project::ssh(
 6923                session,
 6924                app_state.client.clone(),
 6925                app_state.node_runtime.clone(),
 6926                app_state.user_store.clone(),
 6927                app_state.languages.clone(),
 6928                app_state.fs.clone(),
 6929                cx,
 6930            )
 6931        })?;
 6932
 6933        open_ssh_project_inner(
 6934            project,
 6935            paths,
 6936            serialized_ssh_project,
 6937            workspace_id,
 6938            serialized_workspace,
 6939            app_state,
 6940            window,
 6941            cx,
 6942        )
 6943        .await
 6944    })
 6945}
 6946
 6947pub fn open_ssh_project_with_existing_connection(
 6948    connection_options: SshConnectionOptions,
 6949    project: Entity<Project>,
 6950    paths: Vec<PathBuf>,
 6951    app_state: Arc<AppState>,
 6952    window: WindowHandle<Workspace>,
 6953    cx: &mut AsyncApp,
 6954) -> Task<Result<()>> {
 6955    cx.spawn(async move |cx| {
 6956        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 6957            serialize_ssh_project(connection_options.clone(), paths.clone(), &cx).await?;
 6958
 6959        open_ssh_project_inner(
 6960            project,
 6961            paths,
 6962            serialized_ssh_project,
 6963            workspace_id,
 6964            serialized_workspace,
 6965            app_state,
 6966            window,
 6967            cx,
 6968        )
 6969        .await
 6970    })
 6971}
 6972
 6973async fn open_ssh_project_inner(
 6974    project: Entity<Project>,
 6975    paths: Vec<PathBuf>,
 6976    serialized_ssh_project: SerializedSshProject,
 6977    workspace_id: WorkspaceId,
 6978    serialized_workspace: Option<SerializedWorkspace>,
 6979    app_state: Arc<AppState>,
 6980    window: WindowHandle<Workspace>,
 6981    cx: &mut AsyncApp,
 6982) -> Result<()> {
 6983    let toolchains = DB.toolchains(workspace_id).await?;
 6984    for (toolchain, worktree_id, path) in toolchains {
 6985        project
 6986            .update(cx, |this, cx| {
 6987                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 6988            })?
 6989            .await;
 6990    }
 6991    let mut project_paths_to_open = vec![];
 6992    let mut project_path_errors = vec![];
 6993
 6994    for path in paths {
 6995        let result = cx
 6996            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 6997            .await;
 6998        match result {
 6999            Ok((_, project_path)) => {
 7000                project_paths_to_open.push((path.clone(), Some(project_path)));
 7001            }
 7002            Err(error) => {
 7003                project_path_errors.push(error);
 7004            }
 7005        };
 7006    }
 7007
 7008    if project_paths_to_open.is_empty() {
 7009        return Err(project_path_errors.pop().context("no paths given")?);
 7010    }
 7011
 7012    cx.update_window(window.into(), |_, window, cx| {
 7013        window.replace_root(cx, |window, cx| {
 7014            telemetry::event!("SSH Project Opened");
 7015
 7016            let mut workspace =
 7017                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7018            workspace.set_serialized_ssh_project(serialized_ssh_project);
 7019            workspace.update_history(cx);
 7020            workspace
 7021        });
 7022    })?;
 7023
 7024    window
 7025        .update(cx, |_, window, cx| {
 7026            window.activate_window();
 7027            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7028        })?
 7029        .await?;
 7030
 7031    window.update(cx, |workspace, _, cx| {
 7032        for error in project_path_errors {
 7033            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7034                if let Some(path) = error.error_tag("path") {
 7035                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7036                }
 7037            } else {
 7038                workspace.show_error(&error, cx)
 7039            }
 7040        }
 7041    })?;
 7042
 7043    Ok(())
 7044}
 7045
 7046fn serialize_ssh_project(
 7047    connection_options: SshConnectionOptions,
 7048    paths: Vec<PathBuf>,
 7049    cx: &AsyncApp,
 7050) -> Task<
 7051    Result<(
 7052        SerializedSshProject,
 7053        WorkspaceId,
 7054        Option<SerializedWorkspace>,
 7055    )>,
 7056> {
 7057    cx.background_spawn(async move {
 7058        let serialized_ssh_project = persistence::DB
 7059            .get_or_create_ssh_project(
 7060                connection_options.host.clone(),
 7061                connection_options.port,
 7062                paths
 7063                    .iter()
 7064                    .map(|path| path.to_string_lossy().to_string())
 7065                    .collect::<Vec<_>>(),
 7066                connection_options.username.clone(),
 7067            )
 7068            .await?;
 7069
 7070        let serialized_workspace =
 7071            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 7072
 7073        let workspace_id = if let Some(workspace_id) =
 7074            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7075        {
 7076            workspace_id
 7077        } else {
 7078            persistence::DB.next_id().await?
 7079        };
 7080
 7081        Ok((serialized_ssh_project, workspace_id, serialized_workspace))
 7082    })
 7083}
 7084
 7085pub fn join_in_room_project(
 7086    project_id: u64,
 7087    follow_user_id: u64,
 7088    app_state: Arc<AppState>,
 7089    cx: &mut App,
 7090) -> Task<Result<()>> {
 7091    let windows = cx.windows();
 7092    cx.spawn(async move |cx| {
 7093        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7094            window_handle
 7095                .downcast::<Workspace>()
 7096                .and_then(|window_handle| {
 7097                    window_handle
 7098                        .update(cx, |workspace, _window, cx| {
 7099                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7100                                Some(window_handle)
 7101                            } else {
 7102                                None
 7103                            }
 7104                        })
 7105                        .unwrap_or(None)
 7106                })
 7107        });
 7108
 7109        let workspace = if let Some(existing_workspace) = existing_workspace {
 7110            existing_workspace
 7111        } else {
 7112            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7113            let room = active_call
 7114                .read_with(cx, |call, _| call.room().cloned())?
 7115                .context("not in a call")?;
 7116            let project = room
 7117                .update(cx, |room, cx| {
 7118                    room.join_project(
 7119                        project_id,
 7120                        app_state.languages.clone(),
 7121                        app_state.fs.clone(),
 7122                        cx,
 7123                    )
 7124                })?
 7125                .await?;
 7126
 7127            let window_bounds_override = window_bounds_env_override();
 7128            cx.update(|cx| {
 7129                let mut options = (app_state.build_window_options)(None, cx);
 7130                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7131                cx.open_window(options, |window, cx| {
 7132                    cx.new(|cx| {
 7133                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7134                    })
 7135                })
 7136            })??
 7137        };
 7138
 7139        workspace.update(cx, |workspace, window, cx| {
 7140            cx.activate(true);
 7141            window.activate_window();
 7142
 7143            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7144                let follow_peer_id = room
 7145                    .read(cx)
 7146                    .remote_participants()
 7147                    .iter()
 7148                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7149                    .map(|(_, p)| p.peer_id)
 7150                    .or_else(|| {
 7151                        // If we couldn't follow the given user, follow the host instead.
 7152                        let collaborator = workspace
 7153                            .project()
 7154                            .read(cx)
 7155                            .collaborators()
 7156                            .values()
 7157                            .find(|collaborator| collaborator.is_host)?;
 7158                        Some(collaborator.peer_id)
 7159                    });
 7160
 7161                if let Some(follow_peer_id) = follow_peer_id {
 7162                    workspace.follow(follow_peer_id, window, cx);
 7163                }
 7164            }
 7165        })?;
 7166
 7167        anyhow::Ok(())
 7168    })
 7169}
 7170
 7171pub fn reload(reload: &Reload, cx: &mut App) {
 7172    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7173    let mut workspace_windows = cx
 7174        .windows()
 7175        .into_iter()
 7176        .filter_map(|window| window.downcast::<Workspace>())
 7177        .collect::<Vec<_>>();
 7178
 7179    // If multiple windows have unsaved changes, and need a save prompt,
 7180    // prompt in the active window before switching to a different window.
 7181    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7182
 7183    let mut prompt = None;
 7184    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7185        prompt = window
 7186            .update(cx, |_, window, cx| {
 7187                window.prompt(
 7188                    PromptLevel::Info,
 7189                    "Are you sure you want to restart?",
 7190                    None,
 7191                    &["Restart", "Cancel"],
 7192                    cx,
 7193                )
 7194            })
 7195            .ok();
 7196    }
 7197
 7198    let binary_path = reload.binary_path.clone();
 7199    cx.spawn(async move |cx| {
 7200        if let Some(prompt) = prompt {
 7201            let answer = prompt.await?;
 7202            if answer != 0 {
 7203                return Ok(());
 7204            }
 7205        }
 7206
 7207        // If the user cancels any save prompt, then keep the app open.
 7208        for window in workspace_windows {
 7209            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7210                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7211            }) {
 7212                if !should_close.await? {
 7213                    return Ok(());
 7214                }
 7215            }
 7216        }
 7217
 7218        cx.update(|cx| cx.restart(binary_path))
 7219    })
 7220    .detach_and_log_err(cx);
 7221}
 7222
 7223fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7224    let mut parts = value.split(',');
 7225    let x: usize = parts.next()?.parse().ok()?;
 7226    let y: usize = parts.next()?.parse().ok()?;
 7227    Some(point(px(x as f32), px(y as f32)))
 7228}
 7229
 7230fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7231    let mut parts = value.split(',');
 7232    let width: usize = parts.next()?.parse().ok()?;
 7233    let height: usize = parts.next()?.parse().ok()?;
 7234    Some(size(px(width as f32), px(height as f32)))
 7235}
 7236
 7237pub fn client_side_decorations(
 7238    element: impl IntoElement,
 7239    window: &mut Window,
 7240    cx: &mut App,
 7241) -> Stateful<Div> {
 7242    const BORDER_SIZE: Pixels = px(1.0);
 7243    let decorations = window.window_decorations();
 7244
 7245    if matches!(decorations, Decorations::Client { .. }) {
 7246        window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW);
 7247    }
 7248
 7249    struct GlobalResizeEdge(ResizeEdge);
 7250    impl Global for GlobalResizeEdge {}
 7251
 7252    div()
 7253        .id("window-backdrop")
 7254        .bg(transparent_black())
 7255        .map(|div| match decorations {
 7256            Decorations::Server => div,
 7257            Decorations::Client { tiling, .. } => div
 7258                .when(!(tiling.top || tiling.right), |div| {
 7259                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7260                })
 7261                .when(!(tiling.top || tiling.left), |div| {
 7262                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7263                })
 7264                .when(!(tiling.bottom || tiling.right), |div| {
 7265                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7266                })
 7267                .when(!(tiling.bottom || tiling.left), |div| {
 7268                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7269                })
 7270                .when(!tiling.top, |div| {
 7271                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7272                })
 7273                .when(!tiling.bottom, |div| {
 7274                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7275                })
 7276                .when(!tiling.left, |div| {
 7277                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7278                })
 7279                .when(!tiling.right, |div| {
 7280                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7281                })
 7282                .on_mouse_move(move |e, window, cx| {
 7283                    let size = window.window_bounds().get_bounds().size;
 7284                    let pos = e.position;
 7285
 7286                    let new_edge =
 7287                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 7288
 7289                    let edge = cx.try_global::<GlobalResizeEdge>();
 7290                    if new_edge != edge.map(|edge| edge.0) {
 7291                        window
 7292                            .window_handle()
 7293                            .update(cx, |workspace, _, cx| {
 7294                                cx.notify(workspace.entity_id());
 7295                            })
 7296                            .ok();
 7297                    }
 7298                })
 7299                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 7300                    let size = window.window_bounds().get_bounds().size;
 7301                    let pos = e.position;
 7302
 7303                    let edge = match resize_edge(
 7304                        pos,
 7305                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 7306                        size,
 7307                        tiling,
 7308                    ) {
 7309                        Some(value) => value,
 7310                        None => return,
 7311                    };
 7312
 7313                    window.start_window_resize(edge);
 7314                }),
 7315        })
 7316        .size_full()
 7317        .child(
 7318            div()
 7319                .cursor(CursorStyle::Arrow)
 7320                .map(|div| match decorations {
 7321                    Decorations::Server => div,
 7322                    Decorations::Client { tiling } => div
 7323                        .border_color(cx.theme().colors().border)
 7324                        .when(!(tiling.top || tiling.right), |div| {
 7325                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7326                        })
 7327                        .when(!(tiling.top || tiling.left), |div| {
 7328                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7329                        })
 7330                        .when(!(tiling.bottom || tiling.right), |div| {
 7331                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7332                        })
 7333                        .when(!(tiling.bottom || tiling.left), |div| {
 7334                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7335                        })
 7336                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 7337                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 7338                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 7339                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 7340                        .when(!tiling.is_tiled(), |div| {
 7341                            div.shadow(vec![gpui::BoxShadow {
 7342                                color: Hsla {
 7343                                    h: 0.,
 7344                                    s: 0.,
 7345                                    l: 0.,
 7346                                    a: 0.4,
 7347                                },
 7348                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 7349                                spread_radius: px(0.),
 7350                                offset: point(px(0.0), px(0.0)),
 7351                            }])
 7352                        }),
 7353                })
 7354                .on_mouse_move(|_e, _, cx| {
 7355                    cx.stop_propagation();
 7356                })
 7357                .size_full()
 7358                .child(element),
 7359        )
 7360        .map(|div| match decorations {
 7361            Decorations::Server => div,
 7362            Decorations::Client { tiling, .. } => div.child(
 7363                canvas(
 7364                    |_bounds, window, _| {
 7365                        window.insert_hitbox(
 7366                            Bounds::new(
 7367                                point(px(0.0), px(0.0)),
 7368                                window.window_bounds().get_bounds().size,
 7369                            ),
 7370                            HitboxBehavior::Normal,
 7371                        )
 7372                    },
 7373                    move |_bounds, hitbox, window, cx| {
 7374                        let mouse = window.mouse_position();
 7375                        let size = window.window_bounds().get_bounds().size;
 7376                        let Some(edge) =
 7377                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 7378                        else {
 7379                            return;
 7380                        };
 7381                        cx.set_global(GlobalResizeEdge(edge));
 7382                        window.set_cursor_style(
 7383                            match edge {
 7384                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 7385                                ResizeEdge::Left | ResizeEdge::Right => {
 7386                                    CursorStyle::ResizeLeftRight
 7387                                }
 7388                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 7389                                    CursorStyle::ResizeUpLeftDownRight
 7390                                }
 7391                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 7392                                    CursorStyle::ResizeUpRightDownLeft
 7393                                }
 7394                            },
 7395                            Some(&hitbox),
 7396                        );
 7397                    },
 7398                )
 7399                .size_full()
 7400                .absolute(),
 7401            ),
 7402        })
 7403}
 7404
 7405fn resize_edge(
 7406    pos: Point<Pixels>,
 7407    shadow_size: Pixels,
 7408    window_size: Size<Pixels>,
 7409    tiling: Tiling,
 7410) -> Option<ResizeEdge> {
 7411    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 7412    if bounds.contains(&pos) {
 7413        return None;
 7414    }
 7415
 7416    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 7417    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 7418    if !tiling.top && top_left_bounds.contains(&pos) {
 7419        return Some(ResizeEdge::TopLeft);
 7420    }
 7421
 7422    let top_right_bounds = Bounds::new(
 7423        Point::new(window_size.width - corner_size.width, px(0.)),
 7424        corner_size,
 7425    );
 7426    if !tiling.top && top_right_bounds.contains(&pos) {
 7427        return Some(ResizeEdge::TopRight);
 7428    }
 7429
 7430    let bottom_left_bounds = Bounds::new(
 7431        Point::new(px(0.), window_size.height - corner_size.height),
 7432        corner_size,
 7433    );
 7434    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 7435        return Some(ResizeEdge::BottomLeft);
 7436    }
 7437
 7438    let bottom_right_bounds = Bounds::new(
 7439        Point::new(
 7440            window_size.width - corner_size.width,
 7441            window_size.height - corner_size.height,
 7442        ),
 7443        corner_size,
 7444    );
 7445    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 7446        return Some(ResizeEdge::BottomRight);
 7447    }
 7448
 7449    if !tiling.top && pos.y < shadow_size {
 7450        Some(ResizeEdge::Top)
 7451    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 7452        Some(ResizeEdge::Bottom)
 7453    } else if !tiling.left && pos.x < shadow_size {
 7454        Some(ResizeEdge::Left)
 7455    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 7456        Some(ResizeEdge::Right)
 7457    } else {
 7458        None
 7459    }
 7460}
 7461
 7462fn join_pane_into_active(
 7463    active_pane: &Entity<Pane>,
 7464    pane: &Entity<Pane>,
 7465    window: &mut Window,
 7466    cx: &mut App,
 7467) {
 7468    if pane == active_pane {
 7469        return;
 7470    } else if pane.read(cx).items_len() == 0 {
 7471        pane.update(cx, |_, cx| {
 7472            cx.emit(pane::Event::Remove {
 7473                focus_on_pane: None,
 7474            });
 7475        })
 7476    } else {
 7477        move_all_items(pane, active_pane, window, cx);
 7478    }
 7479}
 7480
 7481fn move_all_items(
 7482    from_pane: &Entity<Pane>,
 7483    to_pane: &Entity<Pane>,
 7484    window: &mut Window,
 7485    cx: &mut App,
 7486) {
 7487    let destination_is_different = from_pane != to_pane;
 7488    let mut moved_items = 0;
 7489    for (item_ix, item_handle) in from_pane
 7490        .read(cx)
 7491        .items()
 7492        .enumerate()
 7493        .map(|(ix, item)| (ix, item.clone()))
 7494        .collect::<Vec<_>>()
 7495    {
 7496        let ix = item_ix - moved_items;
 7497        if destination_is_different {
 7498            // Close item from previous pane
 7499            from_pane.update(cx, |source, cx| {
 7500                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 7501            });
 7502            moved_items += 1;
 7503        }
 7504
 7505        // This automatically removes duplicate items in the pane
 7506        to_pane.update(cx, |destination, cx| {
 7507            destination.add_item(item_handle, true, true, None, window, cx);
 7508            window.focus(&destination.focus_handle(cx))
 7509        });
 7510    }
 7511}
 7512
 7513pub fn move_item(
 7514    source: &Entity<Pane>,
 7515    destination: &Entity<Pane>,
 7516    item_id_to_move: EntityId,
 7517    destination_index: usize,
 7518    activate: bool,
 7519    window: &mut Window,
 7520    cx: &mut App,
 7521) {
 7522    let Some((item_ix, item_handle)) = source
 7523        .read(cx)
 7524        .items()
 7525        .enumerate()
 7526        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 7527        .map(|(ix, item)| (ix, item.clone()))
 7528    else {
 7529        // Tab was closed during drag
 7530        return;
 7531    };
 7532
 7533    if source != destination {
 7534        // Close item from previous pane
 7535        source.update(cx, |source, cx| {
 7536            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 7537        });
 7538    }
 7539
 7540    // This automatically removes duplicate items in the pane
 7541    destination.update(cx, |destination, cx| {
 7542        destination.add_item_inner(
 7543            item_handle,
 7544            activate,
 7545            activate,
 7546            activate,
 7547            Some(destination_index),
 7548            window,
 7549            cx,
 7550        );
 7551        if activate {
 7552            window.focus(&destination.focus_handle(cx))
 7553        }
 7554    });
 7555}
 7556
 7557pub fn move_active_item(
 7558    source: &Entity<Pane>,
 7559    destination: &Entity<Pane>,
 7560    focus_destination: bool,
 7561    close_if_empty: bool,
 7562    window: &mut Window,
 7563    cx: &mut App,
 7564) {
 7565    if source == destination {
 7566        return;
 7567    }
 7568    let Some(active_item) = source.read(cx).active_item() else {
 7569        return;
 7570    };
 7571    source.update(cx, |source_pane, cx| {
 7572        let item_id = active_item.item_id();
 7573        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 7574        destination.update(cx, |target_pane, cx| {
 7575            target_pane.add_item(
 7576                active_item,
 7577                focus_destination,
 7578                focus_destination,
 7579                Some(target_pane.items_len()),
 7580                window,
 7581                cx,
 7582            );
 7583        });
 7584    });
 7585}
 7586
 7587#[derive(Debug)]
 7588pub struct WorkspacePosition {
 7589    pub window_bounds: Option<WindowBounds>,
 7590    pub display: Option<Uuid>,
 7591    pub centered_layout: bool,
 7592}
 7593
 7594pub fn ssh_workspace_position_from_db(
 7595    host: String,
 7596    port: Option<u16>,
 7597    user: Option<String>,
 7598    paths_to_open: &[PathBuf],
 7599    cx: &App,
 7600) -> Task<Result<WorkspacePosition>> {
 7601    let paths = paths_to_open
 7602        .iter()
 7603        .map(|path| path.to_string_lossy().to_string())
 7604        .collect::<Vec<_>>();
 7605
 7606    cx.background_spawn(async move {
 7607        let serialized_ssh_project = persistence::DB
 7608            .get_or_create_ssh_project(host, port, paths, user)
 7609            .await
 7610            .context("fetching serialized ssh project")?;
 7611        let serialized_workspace =
 7612            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 7613
 7614        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 7615            (Some(WindowBounds::Windowed(bounds)), None)
 7616        } else {
 7617            let restorable_bounds = serialized_workspace
 7618                .as_ref()
 7619                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 7620                .or_else(|| {
 7621                    let (display, window_bounds) = DB.last_window().log_err()?;
 7622                    Some((display?, window_bounds?))
 7623                });
 7624
 7625            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 7626                (Some(serialized_status.0), Some(serialized_display))
 7627            } else {
 7628                (None, None)
 7629            }
 7630        };
 7631
 7632        let centered_layout = serialized_workspace
 7633            .as_ref()
 7634            .map(|w| w.centered_layout)
 7635            .unwrap_or(false);
 7636
 7637        Ok(WorkspacePosition {
 7638            window_bounds,
 7639            display,
 7640            centered_layout,
 7641        })
 7642    })
 7643}
 7644
 7645pub fn with_active_or_new_workspace(
 7646    cx: &mut App,
 7647    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 7648) {
 7649    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 7650        Some(workspace) => {
 7651            cx.defer(move |cx| {
 7652                workspace
 7653                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 7654                    .log_err();
 7655            });
 7656        }
 7657        None => {
 7658            let app_state = AppState::global(cx);
 7659            if let Some(app_state) = app_state.upgrade() {
 7660                open_new(
 7661                    OpenOptions::default(),
 7662                    app_state,
 7663                    cx,
 7664                    move |workspace, window, cx| f(workspace, window, cx),
 7665                )
 7666                .detach_and_log_err(cx);
 7667            }
 7668        }
 7669    }
 7670}
 7671
 7672#[cfg(test)]
 7673mod tests {
 7674    use std::{cell::RefCell, rc::Rc};
 7675
 7676    use super::*;
 7677    use crate::{
 7678        dock::{PanelEvent, test::TestPanel},
 7679        item::{
 7680            ItemEvent,
 7681            test::{TestItem, TestProjectItem},
 7682        },
 7683    };
 7684    use fs::FakeFs;
 7685    use gpui::{
 7686        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 7687        UpdateGlobal, VisualTestContext, px,
 7688    };
 7689    use project::{Project, ProjectEntryId};
 7690    use serde_json::json;
 7691    use settings::SettingsStore;
 7692
 7693    #[gpui::test]
 7694    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 7695        init_test(cx);
 7696
 7697        let fs = FakeFs::new(cx.executor());
 7698        let project = Project::test(fs, [], cx).await;
 7699        let (workspace, cx) =
 7700            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 7701
 7702        // Adding an item with no ambiguity renders the tab without detail.
 7703        let item1 = cx.new(|cx| {
 7704            let mut item = TestItem::new(cx);
 7705            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 7706            item
 7707        });
 7708        workspace.update_in(cx, |workspace, window, cx| {
 7709            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 7710        });
 7711        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 7712
 7713        // Adding an item that creates ambiguity increases the level of detail on
 7714        // both tabs.
 7715        let item2 = cx.new_window_entity(|_window, cx| {
 7716            let mut item = TestItem::new(cx);
 7717            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 7718            item
 7719        });
 7720        workspace.update_in(cx, |workspace, window, cx| {
 7721            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 7722        });
 7723        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 7724        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 7725
 7726        // Adding an item that creates ambiguity increases the level of detail only
 7727        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 7728        // we stop at the highest detail available.
 7729        let item3 = cx.new(|cx| {
 7730            let mut item = TestItem::new(cx);
 7731            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 7732            item
 7733        });
 7734        workspace.update_in(cx, |workspace, window, cx| {
 7735            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 7736        });
 7737        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 7738        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 7739        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 7740    }
 7741
 7742    #[gpui::test]
 7743    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 7744        init_test(cx);
 7745
 7746        let fs = FakeFs::new(cx.executor());
 7747        fs.insert_tree(
 7748            "/root1",
 7749            json!({
 7750                "one.txt": "",
 7751                "two.txt": "",
 7752            }),
 7753        )
 7754        .await;
 7755        fs.insert_tree(
 7756            "/root2",
 7757            json!({
 7758                "three.txt": "",
 7759            }),
 7760        )
 7761        .await;
 7762
 7763        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 7764        let (workspace, cx) =
 7765            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 7766        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 7767        let worktree_id = project.update(cx, |project, cx| {
 7768            project.worktrees(cx).next().unwrap().read(cx).id()
 7769        });
 7770
 7771        let item1 = cx.new(|cx| {
 7772            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 7773        });
 7774        let item2 = cx.new(|cx| {
 7775            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 7776        });
 7777
 7778        // Add an item to an empty pane
 7779        workspace.update_in(cx, |workspace, window, cx| {
 7780            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 7781        });
 7782        project.update(cx, |project, cx| {
 7783            assert_eq!(
 7784                project.active_entry(),
 7785                project
 7786                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 7787                    .map(|e| e.id)
 7788            );
 7789        });
 7790        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 7791
 7792        // Add a second item to a non-empty pane
 7793        workspace.update_in(cx, |workspace, window, cx| {
 7794            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 7795        });
 7796        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 7797        project.update(cx, |project, cx| {
 7798            assert_eq!(
 7799                project.active_entry(),
 7800                project
 7801                    .entry_for_path(&(worktree_id, "two.txt").into(), cx)
 7802                    .map(|e| e.id)
 7803            );
 7804        });
 7805
 7806        // Close the active item
 7807        pane.update_in(cx, |pane, window, cx| {
 7808            pane.close_active_item(&Default::default(), window, cx)
 7809        })
 7810        .await
 7811        .unwrap();
 7812        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 7813        project.update(cx, |project, cx| {
 7814            assert_eq!(
 7815                project.active_entry(),
 7816                project
 7817                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 7818                    .map(|e| e.id)
 7819            );
 7820        });
 7821
 7822        // Add a project folder
 7823        project
 7824            .update(cx, |project, cx| {
 7825                project.find_or_create_worktree("root2", true, cx)
 7826            })
 7827            .await
 7828            .unwrap();
 7829        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 7830
 7831        // Remove a project folder
 7832        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 7833        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 7834    }
 7835
 7836    #[gpui::test]
 7837    async fn test_close_window(cx: &mut TestAppContext) {
 7838        init_test(cx);
 7839
 7840        let fs = FakeFs::new(cx.executor());
 7841        fs.insert_tree("/root", json!({ "one": "" })).await;
 7842
 7843        let project = Project::test(fs, ["root".as_ref()], cx).await;
 7844        let (workspace, cx) =
 7845            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 7846
 7847        // When there are no dirty items, there's nothing to do.
 7848        let item1 = cx.new(TestItem::new);
 7849        workspace.update_in(cx, |w, window, cx| {
 7850            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 7851        });
 7852        let task = workspace.update_in(cx, |w, window, cx| {
 7853            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 7854        });
 7855        assert!(task.await.unwrap());
 7856
 7857        // When there are dirty untitled items, prompt to save each one. If the user
 7858        // cancels any prompt, then abort.
 7859        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 7860        let item3 = cx.new(|cx| {
 7861            TestItem::new(cx)
 7862                .with_dirty(true)
 7863                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 7864        });
 7865        workspace.update_in(cx, |w, window, cx| {
 7866            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 7867            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 7868        });
 7869        let task = workspace.update_in(cx, |w, window, cx| {
 7870            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 7871        });
 7872        cx.executor().run_until_parked();
 7873        cx.simulate_prompt_answer("Cancel"); // cancel save all
 7874        cx.executor().run_until_parked();
 7875        assert!(!cx.has_pending_prompt());
 7876        assert!(!task.await.unwrap());
 7877    }
 7878
 7879    #[gpui::test]
 7880    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 7881        init_test(cx);
 7882
 7883        // Register TestItem as a serializable item
 7884        cx.update(|cx| {
 7885            register_serializable_item::<TestItem>(cx);
 7886        });
 7887
 7888        let fs = FakeFs::new(cx.executor());
 7889        fs.insert_tree("/root", json!({ "one": "" })).await;
 7890
 7891        let project = Project::test(fs, ["root".as_ref()], cx).await;
 7892        let (workspace, cx) =
 7893            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 7894
 7895        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 7896        let item1 = cx.new(|cx| {
 7897            TestItem::new(cx)
 7898                .with_dirty(true)
 7899                .with_serialize(|| Some(Task::ready(Ok(()))))
 7900        });
 7901        let item2 = cx.new(|cx| {
 7902            TestItem::new(cx)
 7903                .with_dirty(true)
 7904                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 7905                .with_serialize(|| Some(Task::ready(Ok(()))))
 7906        });
 7907        workspace.update_in(cx, |w, window, cx| {
 7908            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 7909            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 7910        });
 7911        let task = workspace.update_in(cx, |w, window, cx| {
 7912            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 7913        });
 7914        assert!(task.await.unwrap());
 7915    }
 7916
 7917    #[gpui::test]
 7918    async fn test_close_pane_items(cx: &mut TestAppContext) {
 7919        init_test(cx);
 7920
 7921        let fs = FakeFs::new(cx.executor());
 7922
 7923        let project = Project::test(fs, None, cx).await;
 7924        let (workspace, cx) =
 7925            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 7926
 7927        let item1 = cx.new(|cx| {
 7928            TestItem::new(cx)
 7929                .with_dirty(true)
 7930                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 7931        });
 7932        let item2 = cx.new(|cx| {
 7933            TestItem::new(cx)
 7934                .with_dirty(true)
 7935                .with_conflict(true)
 7936                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 7937        });
 7938        let item3 = cx.new(|cx| {
 7939            TestItem::new(cx)
 7940                .with_dirty(true)
 7941                .with_conflict(true)
 7942                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 7943        });
 7944        let item4 = cx.new(|cx| {
 7945            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 7946                let project_item = TestProjectItem::new_untitled(cx);
 7947                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 7948                project_item
 7949            }])
 7950        });
 7951        let pane = workspace.update_in(cx, |workspace, window, cx| {
 7952            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 7953            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 7954            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 7955            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 7956            workspace.active_pane().clone()
 7957        });
 7958
 7959        let close_items = pane.update_in(cx, |pane, window, cx| {
 7960            pane.activate_item(1, true, true, window, cx);
 7961            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 7962            let item1_id = item1.item_id();
 7963            let item3_id = item3.item_id();
 7964            let item4_id = item4.item_id();
 7965            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 7966                [item1_id, item3_id, item4_id].contains(&id)
 7967            })
 7968        });
 7969        cx.executor().run_until_parked();
 7970
 7971        assert!(cx.has_pending_prompt());
 7972        cx.simulate_prompt_answer("Save all");
 7973
 7974        cx.executor().run_until_parked();
 7975
 7976        // Item 1 is saved. There's a prompt to save item 3.
 7977        pane.update(cx, |pane, cx| {
 7978            assert_eq!(item1.read(cx).save_count, 1);
 7979            assert_eq!(item1.read(cx).save_as_count, 0);
 7980            assert_eq!(item1.read(cx).reload_count, 0);
 7981            assert_eq!(pane.items_len(), 3);
 7982            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 7983        });
 7984        assert!(cx.has_pending_prompt());
 7985
 7986        // Cancel saving item 3.
 7987        cx.simulate_prompt_answer("Discard");
 7988        cx.executor().run_until_parked();
 7989
 7990        // Item 3 is reloaded. There's a prompt to save item 4.
 7991        pane.update(cx, |pane, cx| {
 7992            assert_eq!(item3.read(cx).save_count, 0);
 7993            assert_eq!(item3.read(cx).save_as_count, 0);
 7994            assert_eq!(item3.read(cx).reload_count, 1);
 7995            assert_eq!(pane.items_len(), 2);
 7996            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 7997        });
 7998
 7999        // There's a prompt for a path for item 4.
 8000        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8001        close_items.await.unwrap();
 8002
 8003        // The requested items are closed.
 8004        pane.update(cx, |pane, cx| {
 8005            assert_eq!(item4.read(cx).save_count, 0);
 8006            assert_eq!(item4.read(cx).save_as_count, 1);
 8007            assert_eq!(item4.read(cx).reload_count, 0);
 8008            assert_eq!(pane.items_len(), 1);
 8009            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8010        });
 8011    }
 8012
 8013    #[gpui::test]
 8014    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8015        init_test(cx);
 8016
 8017        let fs = FakeFs::new(cx.executor());
 8018        let project = Project::test(fs, [], cx).await;
 8019        let (workspace, cx) =
 8020            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8021
 8022        // Create several workspace items with single project entries, and two
 8023        // workspace items with multiple project entries.
 8024        let single_entry_items = (0..=4)
 8025            .map(|project_entry_id| {
 8026                cx.new(|cx| {
 8027                    TestItem::new(cx)
 8028                        .with_dirty(true)
 8029                        .with_project_items(&[dirty_project_item(
 8030                            project_entry_id,
 8031                            &format!("{project_entry_id}.txt"),
 8032                            cx,
 8033                        )])
 8034                })
 8035            })
 8036            .collect::<Vec<_>>();
 8037        let item_2_3 = cx.new(|cx| {
 8038            TestItem::new(cx)
 8039                .with_dirty(true)
 8040                .with_singleton(false)
 8041                .with_project_items(&[
 8042                    single_entry_items[2].read(cx).project_items[0].clone(),
 8043                    single_entry_items[3].read(cx).project_items[0].clone(),
 8044                ])
 8045        });
 8046        let item_3_4 = cx.new(|cx| {
 8047            TestItem::new(cx)
 8048                .with_dirty(true)
 8049                .with_singleton(false)
 8050                .with_project_items(&[
 8051                    single_entry_items[3].read(cx).project_items[0].clone(),
 8052                    single_entry_items[4].read(cx).project_items[0].clone(),
 8053                ])
 8054        });
 8055
 8056        // Create two panes that contain the following project entries:
 8057        //   left pane:
 8058        //     multi-entry items:   (2, 3)
 8059        //     single-entry items:  0, 2, 3, 4
 8060        //   right pane:
 8061        //     single-entry items:  4, 1
 8062        //     multi-entry items:   (3, 4)
 8063        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8064            let left_pane = workspace.active_pane().clone();
 8065            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8066            workspace.add_item_to_active_pane(
 8067                single_entry_items[0].boxed_clone(),
 8068                None,
 8069                true,
 8070                window,
 8071                cx,
 8072            );
 8073            workspace.add_item_to_active_pane(
 8074                single_entry_items[2].boxed_clone(),
 8075                None,
 8076                true,
 8077                window,
 8078                cx,
 8079            );
 8080            workspace.add_item_to_active_pane(
 8081                single_entry_items[3].boxed_clone(),
 8082                None,
 8083                true,
 8084                window,
 8085                cx,
 8086            );
 8087            workspace.add_item_to_active_pane(
 8088                single_entry_items[4].boxed_clone(),
 8089                None,
 8090                true,
 8091                window,
 8092                cx,
 8093            );
 8094
 8095            let right_pane = workspace
 8096                .split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx)
 8097                .unwrap();
 8098
 8099            right_pane.update(cx, |pane, cx| {
 8100                pane.add_item(
 8101                    single_entry_items[1].boxed_clone(),
 8102                    true,
 8103                    true,
 8104                    None,
 8105                    window,
 8106                    cx,
 8107                );
 8108                pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8109            });
 8110
 8111            (left_pane, right_pane)
 8112        });
 8113
 8114        cx.focus(&right_pane);
 8115
 8116        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8117            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8118                .unwrap()
 8119        });
 8120        cx.executor().run_until_parked();
 8121
 8122        let msg = cx.pending_prompt().unwrap().0;
 8123        assert!(msg.contains("1.txt"));
 8124        assert!(!msg.contains("2.txt"));
 8125        assert!(!msg.contains("3.txt"));
 8126        assert!(!msg.contains("4.txt"));
 8127
 8128        cx.simulate_prompt_answer("Cancel");
 8129        close.await;
 8130
 8131        left_pane
 8132            .update_in(cx, |left_pane, window, cx| {
 8133                left_pane.close_item_by_id(
 8134                    single_entry_items[3].entity_id(),
 8135                    SaveIntent::Skip,
 8136                    window,
 8137                    cx,
 8138                )
 8139            })
 8140            .await
 8141            .unwrap();
 8142
 8143        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 details = cx.pending_prompt().unwrap().1;
 8150        assert!(details.contains("1.txt"));
 8151        assert!(!details.contains("2.txt"));
 8152        assert!(details.contains("3.txt"));
 8153        // ideally this assertion could be made, but today we can only
 8154        // save whole items not project items, so the orphaned item 3 causes
 8155        // 4 to be saved too.
 8156        // assert!(!details.contains("4.txt"));
 8157
 8158        cx.simulate_prompt_answer("Save all");
 8159
 8160        cx.executor().run_until_parked();
 8161        close.await;
 8162        right_pane.read_with(cx, |pane, _| {
 8163            assert_eq!(pane.items_len(), 0);
 8164        });
 8165    }
 8166
 8167    #[gpui::test]
 8168    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8169        init_test(cx);
 8170
 8171        let fs = FakeFs::new(cx.executor());
 8172        let project = Project::test(fs, [], cx).await;
 8173        let (workspace, cx) =
 8174            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8175        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8176
 8177        let item = cx.new(|cx| {
 8178            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8179        });
 8180        let item_id = item.entity_id();
 8181        workspace.update_in(cx, |workspace, window, cx| {
 8182            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8183        });
 8184
 8185        // Autosave on window change.
 8186        item.update(cx, |item, cx| {
 8187            SettingsStore::update_global(cx, |settings, cx| {
 8188                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8189                    settings.autosave = Some(AutosaveSetting::OnWindowChange);
 8190                })
 8191            });
 8192            item.is_dirty = true;
 8193        });
 8194
 8195        // Deactivating the window saves the file.
 8196        cx.deactivate_window();
 8197        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8198
 8199        // Re-activating the window doesn't save the file.
 8200        cx.update(|window, _| window.activate_window());
 8201        cx.executor().run_until_parked();
 8202        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8203
 8204        // Autosave on focus change.
 8205        item.update_in(cx, |item, window, cx| {
 8206            cx.focus_self(window);
 8207            SettingsStore::update_global(cx, |settings, cx| {
 8208                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8209                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8210                })
 8211            });
 8212            item.is_dirty = true;
 8213        });
 8214
 8215        // Blurring the item saves the file.
 8216        item.update_in(cx, |_, window, _| window.blur());
 8217        cx.executor().run_until_parked();
 8218        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8219
 8220        // Deactivating the window still saves the file.
 8221        item.update_in(cx, |item, window, cx| {
 8222            cx.focus_self(window);
 8223            item.is_dirty = true;
 8224        });
 8225        cx.deactivate_window();
 8226        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8227
 8228        // Autosave after delay.
 8229        item.update(cx, |item, cx| {
 8230            SettingsStore::update_global(cx, |settings, cx| {
 8231                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8232                    settings.autosave = Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
 8233                })
 8234            });
 8235            item.is_dirty = true;
 8236            cx.emit(ItemEvent::Edit);
 8237        });
 8238
 8239        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 8240        cx.executor().advance_clock(Duration::from_millis(250));
 8241        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 8242
 8243        // After delay expires, the file is saved.
 8244        cx.executor().advance_clock(Duration::from_millis(250));
 8245        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8246
 8247        // Autosave on focus change, ensuring closing the tab counts as such.
 8248        item.update(cx, |item, cx| {
 8249            SettingsStore::update_global(cx, |settings, cx| {
 8250                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8251                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8252                })
 8253            });
 8254            item.is_dirty = true;
 8255            for project_item in &mut item.project_items {
 8256                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8257            }
 8258        });
 8259
 8260        pane.update_in(cx, |pane, window, cx| {
 8261            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8262        })
 8263        .await
 8264        .unwrap();
 8265        assert!(!cx.has_pending_prompt());
 8266        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8267
 8268        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8269        workspace.update_in(cx, |workspace, window, cx| {
 8270            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8271        });
 8272        item.update_in(cx, |item, window, cx| {
 8273            item.project_items[0].update(cx, |item, _| {
 8274                item.entry_id = None;
 8275            });
 8276            item.is_dirty = true;
 8277            window.blur();
 8278        });
 8279        cx.run_until_parked();
 8280        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8281
 8282        // Ensure autosave is prevented for deleted files also when closing the buffer.
 8283        let _close_items = pane.update_in(cx, |pane, window, cx| {
 8284            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8285        });
 8286        cx.run_until_parked();
 8287        assert!(cx.has_pending_prompt());
 8288        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8289    }
 8290
 8291    #[gpui::test]
 8292    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 8293        init_test(cx);
 8294
 8295        let fs = FakeFs::new(cx.executor());
 8296
 8297        let project = Project::test(fs, [], cx).await;
 8298        let (workspace, cx) =
 8299            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8300
 8301        let item = cx.new(|cx| {
 8302            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8303        });
 8304        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8305        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 8306        let toolbar_notify_count = Rc::new(RefCell::new(0));
 8307
 8308        workspace.update_in(cx, |workspace, window, cx| {
 8309            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8310            let toolbar_notification_count = toolbar_notify_count.clone();
 8311            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 8312                *toolbar_notification_count.borrow_mut() += 1
 8313            })
 8314            .detach();
 8315        });
 8316
 8317        pane.read_with(cx, |pane, _| {
 8318            assert!(!pane.can_navigate_backward());
 8319            assert!(!pane.can_navigate_forward());
 8320        });
 8321
 8322        item.update_in(cx, |item, _, cx| {
 8323            item.set_state("one".to_string(), cx);
 8324        });
 8325
 8326        // Toolbar must be notified to re-render the navigation buttons
 8327        assert_eq!(*toolbar_notify_count.borrow(), 1);
 8328
 8329        pane.read_with(cx, |pane, _| {
 8330            assert!(pane.can_navigate_backward());
 8331            assert!(!pane.can_navigate_forward());
 8332        });
 8333
 8334        workspace
 8335            .update_in(cx, |workspace, window, cx| {
 8336                workspace.go_back(pane.downgrade(), window, cx)
 8337            })
 8338            .await
 8339            .unwrap();
 8340
 8341        assert_eq!(*toolbar_notify_count.borrow(), 2);
 8342        pane.read_with(cx, |pane, _| {
 8343            assert!(!pane.can_navigate_backward());
 8344            assert!(pane.can_navigate_forward());
 8345        });
 8346    }
 8347
 8348    #[gpui::test]
 8349    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 8350        init_test(cx);
 8351        let fs = FakeFs::new(cx.executor());
 8352
 8353        let project = Project::test(fs, [], cx).await;
 8354        let (workspace, cx) =
 8355            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8356
 8357        let panel = workspace.update_in(cx, |workspace, window, cx| {
 8358            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8359            workspace.add_panel(panel.clone(), window, cx);
 8360
 8361            workspace
 8362                .right_dock()
 8363                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 8364
 8365            panel
 8366        });
 8367
 8368        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8369        pane.update_in(cx, |pane, window, cx| {
 8370            let item = cx.new(TestItem::new);
 8371            pane.add_item(Box::new(item), true, true, None, window, cx);
 8372        });
 8373
 8374        // Transfer focus from center to panel
 8375        workspace.update_in(cx, |workspace, window, cx| {
 8376            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8377        });
 8378
 8379        workspace.update_in(cx, |workspace, window, cx| {
 8380            assert!(workspace.right_dock().read(cx).is_open());
 8381            assert!(!panel.is_zoomed(window, cx));
 8382            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8383        });
 8384
 8385        // Transfer focus from panel to center
 8386        workspace.update_in(cx, |workspace, window, cx| {
 8387            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8388        });
 8389
 8390        workspace.update_in(cx, |workspace, window, cx| {
 8391            assert!(workspace.right_dock().read(cx).is_open());
 8392            assert!(!panel.is_zoomed(window, cx));
 8393            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8394        });
 8395
 8396        // Close the dock
 8397        workspace.update_in(cx, |workspace, window, cx| {
 8398            workspace.toggle_dock(DockPosition::Right, window, cx);
 8399        });
 8400
 8401        workspace.update_in(cx, |workspace, window, cx| {
 8402            assert!(!workspace.right_dock().read(cx).is_open());
 8403            assert!(!panel.is_zoomed(window, cx));
 8404            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8405        });
 8406
 8407        // Open the dock
 8408        workspace.update_in(cx, |workspace, window, cx| {
 8409            workspace.toggle_dock(DockPosition::Right, window, cx);
 8410        });
 8411
 8412        workspace.update_in(cx, |workspace, window, cx| {
 8413            assert!(workspace.right_dock().read(cx).is_open());
 8414            assert!(!panel.is_zoomed(window, cx));
 8415            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8416        });
 8417
 8418        // Focus and zoom panel
 8419        panel.update_in(cx, |panel, window, cx| {
 8420            cx.focus_self(window);
 8421            panel.set_zoomed(true, window, cx)
 8422        });
 8423
 8424        workspace.update_in(cx, |workspace, window, cx| {
 8425            assert!(workspace.right_dock().read(cx).is_open());
 8426            assert!(panel.is_zoomed(window, cx));
 8427            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8428        });
 8429
 8430        // Transfer focus to the center closes the dock
 8431        workspace.update_in(cx, |workspace, window, cx| {
 8432            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8433        });
 8434
 8435        workspace.update_in(cx, |workspace, window, cx| {
 8436            assert!(!workspace.right_dock().read(cx).is_open());
 8437            assert!(panel.is_zoomed(window, cx));
 8438            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8439        });
 8440
 8441        // Transferring focus back to the panel keeps it zoomed
 8442        workspace.update_in(cx, |workspace, window, cx| {
 8443            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8444        });
 8445
 8446        workspace.update_in(cx, |workspace, window, cx| {
 8447            assert!(workspace.right_dock().read(cx).is_open());
 8448            assert!(panel.is_zoomed(window, cx));
 8449            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8450        });
 8451
 8452        // Close the dock while it is zoomed
 8453        workspace.update_in(cx, |workspace, window, cx| {
 8454            workspace.toggle_dock(DockPosition::Right, window, cx)
 8455        });
 8456
 8457        workspace.update_in(cx, |workspace, window, cx| {
 8458            assert!(!workspace.right_dock().read(cx).is_open());
 8459            assert!(panel.is_zoomed(window, cx));
 8460            assert!(workspace.zoomed.is_none());
 8461            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8462        });
 8463
 8464        // Opening the dock, when it's zoomed, retains focus
 8465        workspace.update_in(cx, |workspace, window, cx| {
 8466            workspace.toggle_dock(DockPosition::Right, window, cx)
 8467        });
 8468
 8469        workspace.update_in(cx, |workspace, window, cx| {
 8470            assert!(workspace.right_dock().read(cx).is_open());
 8471            assert!(panel.is_zoomed(window, cx));
 8472            assert!(workspace.zoomed.is_some());
 8473            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8474        });
 8475
 8476        // Unzoom and close the panel, zoom the active pane.
 8477        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 8478        workspace.update_in(cx, |workspace, window, cx| {
 8479            workspace.toggle_dock(DockPosition::Right, window, cx)
 8480        });
 8481        pane.update_in(cx, |pane, window, cx| {
 8482            pane.toggle_zoom(&Default::default(), window, cx)
 8483        });
 8484
 8485        // Opening a dock unzooms the pane.
 8486        workspace.update_in(cx, |workspace, window, cx| {
 8487            workspace.toggle_dock(DockPosition::Right, window, cx)
 8488        });
 8489        workspace.update_in(cx, |workspace, window, cx| {
 8490            let pane = pane.read(cx);
 8491            assert!(!pane.is_zoomed());
 8492            assert!(!pane.focus_handle(cx).is_focused(window));
 8493            assert!(workspace.right_dock().read(cx).is_open());
 8494            assert!(workspace.zoomed.is_none());
 8495        });
 8496    }
 8497
 8498    #[gpui::test]
 8499    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 8500        init_test(cx);
 8501
 8502        let fs = FakeFs::new(cx.executor());
 8503
 8504        let project = Project::test(fs, None, cx).await;
 8505        let (workspace, cx) =
 8506            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8507
 8508        // Let's arrange the panes like this:
 8509        //
 8510        // +-----------------------+
 8511        // |         top           |
 8512        // +------+--------+-------+
 8513        // | left | center | right |
 8514        // +------+--------+-------+
 8515        // |        bottom         |
 8516        // +-----------------------+
 8517
 8518        let top_item = cx.new(|cx| {
 8519            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 8520        });
 8521        let bottom_item = cx.new(|cx| {
 8522            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 8523        });
 8524        let left_item = cx.new(|cx| {
 8525            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 8526        });
 8527        let right_item = cx.new(|cx| {
 8528            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 8529        });
 8530        let center_item = cx.new(|cx| {
 8531            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 8532        });
 8533
 8534        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8535            let top_pane_id = workspace.active_pane().entity_id();
 8536            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 8537            workspace.split_pane(
 8538                workspace.active_pane().clone(),
 8539                SplitDirection::Down,
 8540                window,
 8541                cx,
 8542            );
 8543            top_pane_id
 8544        });
 8545        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8546            let bottom_pane_id = workspace.active_pane().entity_id();
 8547            workspace.add_item_to_active_pane(
 8548                Box::new(bottom_item.clone()),
 8549                None,
 8550                false,
 8551                window,
 8552                cx,
 8553            );
 8554            workspace.split_pane(
 8555                workspace.active_pane().clone(),
 8556                SplitDirection::Up,
 8557                window,
 8558                cx,
 8559            );
 8560            bottom_pane_id
 8561        });
 8562        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8563            let left_pane_id = workspace.active_pane().entity_id();
 8564            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 8565            workspace.split_pane(
 8566                workspace.active_pane().clone(),
 8567                SplitDirection::Right,
 8568                window,
 8569                cx,
 8570            );
 8571            left_pane_id
 8572        });
 8573        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8574            let right_pane_id = workspace.active_pane().entity_id();
 8575            workspace.add_item_to_active_pane(
 8576                Box::new(right_item.clone()),
 8577                None,
 8578                false,
 8579                window,
 8580                cx,
 8581            );
 8582            workspace.split_pane(
 8583                workspace.active_pane().clone(),
 8584                SplitDirection::Left,
 8585                window,
 8586                cx,
 8587            );
 8588            right_pane_id
 8589        });
 8590        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 8591            let center_pane_id = workspace.active_pane().entity_id();
 8592            workspace.add_item_to_active_pane(
 8593                Box::new(center_item.clone()),
 8594                None,
 8595                false,
 8596                window,
 8597                cx,
 8598            );
 8599            center_pane_id
 8600        });
 8601        cx.executor().run_until_parked();
 8602
 8603        workspace.update_in(cx, |workspace, window, cx| {
 8604            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 8605
 8606            // Join into next from center pane into right
 8607            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 8608        });
 8609
 8610        workspace.update_in(cx, |workspace, window, cx| {
 8611            let active_pane = workspace.active_pane();
 8612            assert_eq!(right_pane_id, active_pane.entity_id());
 8613            assert_eq!(2, active_pane.read(cx).items_len());
 8614            let item_ids_in_pane =
 8615                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 8616            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 8617            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 8618
 8619            // Join into next from right pane into bottom
 8620            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 8621        });
 8622
 8623        workspace.update_in(cx, |workspace, window, cx| {
 8624            let active_pane = workspace.active_pane();
 8625            assert_eq!(bottom_pane_id, active_pane.entity_id());
 8626            assert_eq!(3, active_pane.read(cx).items_len());
 8627            let item_ids_in_pane =
 8628                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 8629            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 8630            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 8631            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 8632
 8633            // Join into next from bottom pane into left
 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!(left_pane_id, active_pane.entity_id());
 8640            assert_eq!(4, 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            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 8646            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 8647
 8648            // Join into next from left pane into top
 8649            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 8650        });
 8651
 8652        workspace.update_in(cx, |workspace, window, cx| {
 8653            let active_pane = workspace.active_pane();
 8654            assert_eq!(top_pane_id, active_pane.entity_id());
 8655            assert_eq!(5, active_pane.read(cx).items_len());
 8656            let item_ids_in_pane =
 8657                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 8658            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 8659            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 8660            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 8661            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 8662            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 8663
 8664            // Single pane left: no-op
 8665            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 8666        });
 8667
 8668        workspace.update(cx, |workspace, _cx| {
 8669            let active_pane = workspace.active_pane();
 8670            assert_eq!(top_pane_id, active_pane.entity_id());
 8671        });
 8672    }
 8673
 8674    fn add_an_item_to_active_pane(
 8675        cx: &mut VisualTestContext,
 8676        workspace: &Entity<Workspace>,
 8677        item_id: u64,
 8678    ) -> Entity<TestItem> {
 8679        let item = cx.new(|cx| {
 8680            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 8681                item_id,
 8682                "item{item_id}.txt",
 8683                cx,
 8684            )])
 8685        });
 8686        workspace.update_in(cx, |workspace, window, cx| {
 8687            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 8688        });
 8689        return item;
 8690    }
 8691
 8692    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 8693        return workspace.update_in(cx, |workspace, window, cx| {
 8694            let new_pane = workspace.split_pane(
 8695                workspace.active_pane().clone(),
 8696                SplitDirection::Right,
 8697                window,
 8698                cx,
 8699            );
 8700            new_pane
 8701        });
 8702    }
 8703
 8704    #[gpui::test]
 8705    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 8706        init_test(cx);
 8707        let fs = FakeFs::new(cx.executor());
 8708        let project = Project::test(fs, None, cx).await;
 8709        let (workspace, cx) =
 8710            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8711
 8712        add_an_item_to_active_pane(cx, &workspace, 1);
 8713        split_pane(cx, &workspace);
 8714        add_an_item_to_active_pane(cx, &workspace, 2);
 8715        split_pane(cx, &workspace); // empty pane
 8716        split_pane(cx, &workspace);
 8717        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 8718
 8719        cx.executor().run_until_parked();
 8720
 8721        workspace.update(cx, |workspace, cx| {
 8722            let num_panes = workspace.panes().len();
 8723            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 8724            let active_item = workspace
 8725                .active_pane()
 8726                .read(cx)
 8727                .active_item()
 8728                .expect("item is in focus");
 8729
 8730            assert_eq!(num_panes, 4);
 8731            assert_eq!(num_items_in_current_pane, 1);
 8732            assert_eq!(active_item.item_id(), last_item.item_id());
 8733        });
 8734
 8735        workspace.update_in(cx, |workspace, window, cx| {
 8736            workspace.join_all_panes(window, cx);
 8737        });
 8738
 8739        workspace.update(cx, |workspace, cx| {
 8740            let num_panes = workspace.panes().len();
 8741            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 8742            let active_item = workspace
 8743                .active_pane()
 8744                .read(cx)
 8745                .active_item()
 8746                .expect("item is in focus");
 8747
 8748            assert_eq!(num_panes, 1);
 8749            assert_eq!(num_items_in_current_pane, 3);
 8750            assert_eq!(active_item.item_id(), last_item.item_id());
 8751        });
 8752    }
 8753    struct TestModal(FocusHandle);
 8754
 8755    impl TestModal {
 8756        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 8757            Self(cx.focus_handle())
 8758        }
 8759    }
 8760
 8761    impl EventEmitter<DismissEvent> for TestModal {}
 8762
 8763    impl Focusable for TestModal {
 8764        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 8765            self.0.clone()
 8766        }
 8767    }
 8768
 8769    impl ModalView for TestModal {}
 8770
 8771    impl Render for TestModal {
 8772        fn render(
 8773            &mut self,
 8774            _window: &mut Window,
 8775            _cx: &mut Context<TestModal>,
 8776        ) -> impl IntoElement {
 8777            div().track_focus(&self.0)
 8778        }
 8779    }
 8780
 8781    #[gpui::test]
 8782    async fn test_panels(cx: &mut gpui::TestAppContext) {
 8783        init_test(cx);
 8784        let fs = FakeFs::new(cx.executor());
 8785
 8786        let project = Project::test(fs, [], cx).await;
 8787        let (workspace, cx) =
 8788            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8789
 8790        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 8791            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 8792            workspace.add_panel(panel_1.clone(), window, cx);
 8793            workspace.toggle_dock(DockPosition::Left, window, cx);
 8794            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8795            workspace.add_panel(panel_2.clone(), window, cx);
 8796            workspace.toggle_dock(DockPosition::Right, window, cx);
 8797
 8798            let left_dock = workspace.left_dock();
 8799            assert_eq!(
 8800                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 8801                panel_1.panel_id()
 8802            );
 8803            assert_eq!(
 8804                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 8805                panel_1.size(window, cx)
 8806            );
 8807
 8808            left_dock.update(cx, |left_dock, cx| {
 8809                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 8810            });
 8811            assert_eq!(
 8812                workspace
 8813                    .right_dock()
 8814                    .read(cx)
 8815                    .visible_panel()
 8816                    .unwrap()
 8817                    .panel_id(),
 8818                panel_2.panel_id(),
 8819            );
 8820
 8821            (panel_1, panel_2)
 8822        });
 8823
 8824        // Move panel_1 to the right
 8825        panel_1.update_in(cx, |panel_1, window, cx| {
 8826            panel_1.set_position(DockPosition::Right, window, cx)
 8827        });
 8828
 8829        workspace.update_in(cx, |workspace, window, cx| {
 8830            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 8831            // Since it was the only panel on the left, the left dock should now be closed.
 8832            assert!(!workspace.left_dock().read(cx).is_open());
 8833            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 8834            let right_dock = workspace.right_dock();
 8835            assert_eq!(
 8836                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 8837                panel_1.panel_id()
 8838            );
 8839            assert_eq!(
 8840                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 8841                px(1337.)
 8842            );
 8843
 8844            // Now we move panel_2 to the left
 8845            panel_2.set_position(DockPosition::Left, window, cx);
 8846        });
 8847
 8848        workspace.update(cx, |workspace, cx| {
 8849            // Since panel_2 was not visible on the right, we don't open the left dock.
 8850            assert!(!workspace.left_dock().read(cx).is_open());
 8851            // And the right dock is unaffected in its displaying of panel_1
 8852            assert!(workspace.right_dock().read(cx).is_open());
 8853            assert_eq!(
 8854                workspace
 8855                    .right_dock()
 8856                    .read(cx)
 8857                    .visible_panel()
 8858                    .unwrap()
 8859                    .panel_id(),
 8860                panel_1.panel_id(),
 8861            );
 8862        });
 8863
 8864        // Move panel_1 back to the left
 8865        panel_1.update_in(cx, |panel_1, window, cx| {
 8866            panel_1.set_position(DockPosition::Left, window, cx)
 8867        });
 8868
 8869        workspace.update_in(cx, |workspace, window, cx| {
 8870            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 8871            let left_dock = workspace.left_dock();
 8872            assert!(left_dock.read(cx).is_open());
 8873            assert_eq!(
 8874                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 8875                panel_1.panel_id()
 8876            );
 8877            assert_eq!(
 8878                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 8879                px(1337.)
 8880            );
 8881            // And the right dock should be closed as it no longer has any panels.
 8882            assert!(!workspace.right_dock().read(cx).is_open());
 8883
 8884            // Now we move panel_1 to the bottom
 8885            panel_1.set_position(DockPosition::Bottom, window, cx);
 8886        });
 8887
 8888        workspace.update_in(cx, |workspace, window, cx| {
 8889            // Since panel_1 was visible on the left, we close the left dock.
 8890            assert!(!workspace.left_dock().read(cx).is_open());
 8891            // The bottom dock is sized based on the panel's default size,
 8892            // since the panel orientation changed from vertical to horizontal.
 8893            let bottom_dock = workspace.bottom_dock();
 8894            assert_eq!(
 8895                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 8896                panel_1.size(window, cx),
 8897            );
 8898            // Close bottom dock and move panel_1 back to the left.
 8899            bottom_dock.update(cx, |bottom_dock, cx| {
 8900                bottom_dock.set_open(false, window, cx)
 8901            });
 8902            panel_1.set_position(DockPosition::Left, window, cx);
 8903        });
 8904
 8905        // Emit activated event on panel 1
 8906        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 8907
 8908        // Now the left dock is open and panel_1 is active and focused.
 8909        workspace.update_in(cx, |workspace, window, cx| {
 8910            let left_dock = workspace.left_dock();
 8911            assert!(left_dock.read(cx).is_open());
 8912            assert_eq!(
 8913                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 8914                panel_1.panel_id(),
 8915            );
 8916            assert!(panel_1.focus_handle(cx).is_focused(window));
 8917        });
 8918
 8919        // Emit closed event on panel 2, which is not active
 8920        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 8921
 8922        // Wo don't close the left dock, because panel_2 wasn't the active panel
 8923        workspace.update(cx, |workspace, cx| {
 8924            let left_dock = workspace.left_dock();
 8925            assert!(left_dock.read(cx).is_open());
 8926            assert_eq!(
 8927                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 8928                panel_1.panel_id(),
 8929            );
 8930        });
 8931
 8932        // Emitting a ZoomIn event shows the panel as zoomed.
 8933        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 8934        workspace.read_with(cx, |workspace, _| {
 8935            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 8936            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 8937        });
 8938
 8939        // Move panel to another dock while it is zoomed
 8940        panel_1.update_in(cx, |panel, window, cx| {
 8941            panel.set_position(DockPosition::Right, window, cx)
 8942        });
 8943        workspace.read_with(cx, |workspace, _| {
 8944            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 8945
 8946            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 8947        });
 8948
 8949        // This is a helper for getting a:
 8950        // - valid focus on an element,
 8951        // - that isn't a part of the panes and panels system of the Workspace,
 8952        // - and doesn't trigger the 'on_focus_lost' API.
 8953        let focus_other_view = {
 8954            let workspace = workspace.clone();
 8955            move |cx: &mut VisualTestContext| {
 8956                workspace.update_in(cx, |workspace, window, cx| {
 8957                    if let Some(_) = workspace.active_modal::<TestModal>(cx) {
 8958                        workspace.toggle_modal(window, cx, TestModal::new);
 8959                        workspace.toggle_modal(window, cx, TestModal::new);
 8960                    } else {
 8961                        workspace.toggle_modal(window, cx, TestModal::new);
 8962                    }
 8963                })
 8964            }
 8965        };
 8966
 8967        // If focus is transferred to another view that's not a panel or another pane, we still show
 8968        // the panel as zoomed.
 8969        focus_other_view(cx);
 8970        workspace.read_with(cx, |workspace, _| {
 8971            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 8972            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 8973        });
 8974
 8975        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 8976        workspace.update_in(cx, |_workspace, window, cx| {
 8977            cx.focus_self(window);
 8978        });
 8979        workspace.read_with(cx, |workspace, _| {
 8980            assert_eq!(workspace.zoomed, None);
 8981            assert_eq!(workspace.zoomed_position, None);
 8982        });
 8983
 8984        // If focus is transferred again to another view that's not a panel or a pane, we won't
 8985        // show the panel as zoomed because it wasn't zoomed before.
 8986        focus_other_view(cx);
 8987        workspace.read_with(cx, |workspace, _| {
 8988            assert_eq!(workspace.zoomed, None);
 8989            assert_eq!(workspace.zoomed_position, None);
 8990        });
 8991
 8992        // When the panel is activated, it is zoomed again.
 8993        cx.dispatch_action(ToggleRightDock);
 8994        workspace.read_with(cx, |workspace, _| {
 8995            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 8996            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 8997        });
 8998
 8999        // Emitting a ZoomOut event unzooms the panel.
 9000        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
 9001        workspace.read_with(cx, |workspace, _| {
 9002            assert_eq!(workspace.zoomed, None);
 9003            assert_eq!(workspace.zoomed_position, None);
 9004        });
 9005
 9006        // Emit closed event on panel 1, which is active
 9007        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9008
 9009        // Now the left dock is closed, because panel_1 was the active panel
 9010        workspace.update(cx, |workspace, cx| {
 9011            let right_dock = workspace.right_dock();
 9012            assert!(!right_dock.read(cx).is_open());
 9013        });
 9014    }
 9015
 9016    #[gpui::test]
 9017    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
 9018        init_test(cx);
 9019
 9020        let fs = FakeFs::new(cx.background_executor.clone());
 9021        let project = Project::test(fs, [], cx).await;
 9022        let (workspace, cx) =
 9023            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9024        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9025
 9026        let dirty_regular_buffer = cx.new(|cx| {
 9027            TestItem::new(cx)
 9028                .with_dirty(true)
 9029                .with_label("1.txt")
 9030                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9031        });
 9032        let dirty_regular_buffer_2 = cx.new(|cx| {
 9033            TestItem::new(cx)
 9034                .with_dirty(true)
 9035                .with_label("2.txt")
 9036                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9037        });
 9038        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9039            TestItem::new(cx)
 9040                .with_dirty(true)
 9041                .with_singleton(false)
 9042                .with_label("Fake Project Search")
 9043                .with_project_items(&[
 9044                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9045                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9046                ])
 9047        });
 9048        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9049        workspace.update_in(cx, |workspace, window, cx| {
 9050            workspace.add_item(
 9051                pane.clone(),
 9052                Box::new(dirty_regular_buffer.clone()),
 9053                None,
 9054                false,
 9055                false,
 9056                window,
 9057                cx,
 9058            );
 9059            workspace.add_item(
 9060                pane.clone(),
 9061                Box::new(dirty_regular_buffer_2.clone()),
 9062                None,
 9063                false,
 9064                false,
 9065                window,
 9066                cx,
 9067            );
 9068            workspace.add_item(
 9069                pane.clone(),
 9070                Box::new(dirty_multi_buffer_with_both.clone()),
 9071                None,
 9072                false,
 9073                false,
 9074                window,
 9075                cx,
 9076            );
 9077        });
 9078
 9079        pane.update_in(cx, |pane, window, cx| {
 9080            pane.activate_item(2, true, true, window, cx);
 9081            assert_eq!(
 9082                pane.active_item().unwrap().item_id(),
 9083                multi_buffer_with_both_files_id,
 9084                "Should select the multi buffer in the pane"
 9085            );
 9086        });
 9087        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9088            pane.close_inactive_items(
 9089                &CloseInactiveItems {
 9090                    save_intent: Some(SaveIntent::Save),
 9091                    close_pinned: true,
 9092                },
 9093                window,
 9094                cx,
 9095            )
 9096        });
 9097        cx.background_executor.run_until_parked();
 9098        assert!(!cx.has_pending_prompt());
 9099        close_all_but_multi_buffer_task
 9100            .await
 9101            .expect("Closing all buffers but the multi buffer failed");
 9102        pane.update(cx, |pane, cx| {
 9103            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
 9104            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
 9105            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
 9106            assert_eq!(pane.items_len(), 1);
 9107            assert_eq!(
 9108                pane.active_item().unwrap().item_id(),
 9109                multi_buffer_with_both_files_id,
 9110                "Should have only the multi buffer left in the pane"
 9111            );
 9112            assert!(
 9113                dirty_multi_buffer_with_both.read(cx).is_dirty,
 9114                "The multi buffer containing the unsaved buffer should still be dirty"
 9115            );
 9116        });
 9117
 9118        dirty_regular_buffer.update(cx, |buffer, cx| {
 9119            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
 9120        });
 9121
 9122        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9123            pane.close_active_item(
 9124                &CloseActiveItem {
 9125                    save_intent: Some(SaveIntent::Close),
 9126                    close_pinned: false,
 9127                },
 9128                window,
 9129                cx,
 9130            )
 9131        });
 9132        cx.background_executor.run_until_parked();
 9133        assert!(
 9134            cx.has_pending_prompt(),
 9135            "Dirty multi buffer should prompt a save dialog"
 9136        );
 9137        cx.simulate_prompt_answer("Save");
 9138        cx.background_executor.run_until_parked();
 9139        close_multi_buffer_task
 9140            .await
 9141            .expect("Closing the multi buffer failed");
 9142        pane.update(cx, |pane, cx| {
 9143            assert_eq!(
 9144                dirty_multi_buffer_with_both.read(cx).save_count,
 9145                1,
 9146                "Multi buffer item should get be saved"
 9147            );
 9148            // Test impl does not save inner items, so we do not assert them
 9149            assert_eq!(
 9150                pane.items_len(),
 9151                0,
 9152                "No more items should be left in the pane"
 9153            );
 9154            assert!(pane.active_item().is_none());
 9155        });
 9156    }
 9157
 9158    #[gpui::test]
 9159    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
 9160        cx: &mut TestAppContext,
 9161    ) {
 9162        init_test(cx);
 9163
 9164        let fs = FakeFs::new(cx.background_executor.clone());
 9165        let project = Project::test(fs, [], cx).await;
 9166        let (workspace, cx) =
 9167            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9168        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9169
 9170        let dirty_regular_buffer = cx.new(|cx| {
 9171            TestItem::new(cx)
 9172                .with_dirty(true)
 9173                .with_label("1.txt")
 9174                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9175        });
 9176        let dirty_regular_buffer_2 = cx.new(|cx| {
 9177            TestItem::new(cx)
 9178                .with_dirty(true)
 9179                .with_label("2.txt")
 9180                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9181        });
 9182        let clear_regular_buffer = cx.new(|cx| {
 9183            TestItem::new(cx)
 9184                .with_label("3.txt")
 9185                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9186        });
 9187
 9188        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9189            TestItem::new(cx)
 9190                .with_dirty(true)
 9191                .with_singleton(false)
 9192                .with_label("Fake Project Search")
 9193                .with_project_items(&[
 9194                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9195                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9196                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9197                ])
 9198        });
 9199        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9200        workspace.update_in(cx, |workspace, window, cx| {
 9201            workspace.add_item(
 9202                pane.clone(),
 9203                Box::new(dirty_regular_buffer.clone()),
 9204                None,
 9205                false,
 9206                false,
 9207                window,
 9208                cx,
 9209            );
 9210            workspace.add_item(
 9211                pane.clone(),
 9212                Box::new(dirty_multi_buffer_with_both.clone()),
 9213                None,
 9214                false,
 9215                false,
 9216                window,
 9217                cx,
 9218            );
 9219        });
 9220
 9221        pane.update_in(cx, |pane, window, cx| {
 9222            pane.activate_item(1, true, true, window, cx);
 9223            assert_eq!(
 9224                pane.active_item().unwrap().item_id(),
 9225                multi_buffer_with_both_files_id,
 9226                "Should select the multi buffer in the pane"
 9227            );
 9228        });
 9229        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9230            pane.close_active_item(
 9231                &CloseActiveItem {
 9232                    save_intent: None,
 9233                    close_pinned: false,
 9234                },
 9235                window,
 9236                cx,
 9237            )
 9238        });
 9239        cx.background_executor.run_until_parked();
 9240        assert!(
 9241            cx.has_pending_prompt(),
 9242            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
 9243        );
 9244    }
 9245
 9246    /// Tests that when `close_on_file_delete` is enabled, files are automatically
 9247    /// closed when they are deleted from disk.
 9248    #[gpui::test]
 9249    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
 9250        init_test(cx);
 9251
 9252        // Enable the close_on_disk_deletion setting
 9253        cx.update_global(|store: &mut SettingsStore, cx| {
 9254            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9255                settings.close_on_file_delete = Some(true);
 9256            });
 9257        });
 9258
 9259        let fs = FakeFs::new(cx.background_executor.clone());
 9260        let project = Project::test(fs, [], cx).await;
 9261        let (workspace, cx) =
 9262            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9263        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9264
 9265        // Create a test item that simulates a file
 9266        let item = cx.new(|cx| {
 9267            TestItem::new(cx)
 9268                .with_label("test.txt")
 9269                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9270        });
 9271
 9272        // Add item to workspace
 9273        workspace.update_in(cx, |workspace, window, cx| {
 9274            workspace.add_item(
 9275                pane.clone(),
 9276                Box::new(item.clone()),
 9277                None,
 9278                false,
 9279                false,
 9280                window,
 9281                cx,
 9282            );
 9283        });
 9284
 9285        // Verify the item is in the pane
 9286        pane.read_with(cx, |pane, _| {
 9287            assert_eq!(pane.items().count(), 1);
 9288        });
 9289
 9290        // Simulate file deletion by setting the item's deleted state
 9291        item.update(cx, |item, _| {
 9292            item.set_has_deleted_file(true);
 9293        });
 9294
 9295        // Emit UpdateTab event to trigger the close behavior
 9296        cx.run_until_parked();
 9297        item.update(cx, |_, cx| {
 9298            cx.emit(ItemEvent::UpdateTab);
 9299        });
 9300
 9301        // Allow the close operation to complete
 9302        cx.run_until_parked();
 9303
 9304        // Verify the item was automatically closed
 9305        pane.read_with(cx, |pane, _| {
 9306            assert_eq!(
 9307                pane.items().count(),
 9308                0,
 9309                "Item should be automatically closed when file is deleted"
 9310            );
 9311        });
 9312    }
 9313
 9314    /// Tests that when `close_on_file_delete` is disabled (default), files remain
 9315    /// open with a strikethrough when they are deleted from disk.
 9316    #[gpui::test]
 9317    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
 9318        init_test(cx);
 9319
 9320        // Ensure close_on_disk_deletion is disabled (default)
 9321        cx.update_global(|store: &mut SettingsStore, cx| {
 9322            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9323                settings.close_on_file_delete = Some(false);
 9324            });
 9325        });
 9326
 9327        let fs = FakeFs::new(cx.background_executor.clone());
 9328        let project = Project::test(fs, [], cx).await;
 9329        let (workspace, cx) =
 9330            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9331        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9332
 9333        // Create a test item that simulates a file
 9334        let item = cx.new(|cx| {
 9335            TestItem::new(cx)
 9336                .with_label("test.txt")
 9337                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9338        });
 9339
 9340        // Add item to workspace
 9341        workspace.update_in(cx, |workspace, window, cx| {
 9342            workspace.add_item(
 9343                pane.clone(),
 9344                Box::new(item.clone()),
 9345                None,
 9346                false,
 9347                false,
 9348                window,
 9349                cx,
 9350            );
 9351        });
 9352
 9353        // Verify the item is in the pane
 9354        pane.read_with(cx, |pane, _| {
 9355            assert_eq!(pane.items().count(), 1);
 9356        });
 9357
 9358        // Simulate file deletion
 9359        item.update(cx, |item, _| {
 9360            item.set_has_deleted_file(true);
 9361        });
 9362
 9363        // Emit UpdateTab event
 9364        cx.run_until_parked();
 9365        item.update(cx, |_, cx| {
 9366            cx.emit(ItemEvent::UpdateTab);
 9367        });
 9368
 9369        // Allow any potential close operation to complete
 9370        cx.run_until_parked();
 9371
 9372        // Verify the item remains open (with strikethrough)
 9373        pane.read_with(cx, |pane, _| {
 9374            assert_eq!(
 9375                pane.items().count(),
 9376                1,
 9377                "Item should remain open when close_on_disk_deletion is disabled"
 9378            );
 9379        });
 9380
 9381        // Verify the item shows as deleted
 9382        item.read_with(cx, |item, _| {
 9383            assert!(
 9384                item.has_deleted_file,
 9385                "Item should be marked as having deleted file"
 9386            );
 9387        });
 9388    }
 9389
 9390    /// Tests that dirty files are not automatically closed when deleted from disk,
 9391    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
 9392    /// unsaved changes without being prompted.
 9393    #[gpui::test]
 9394    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
 9395        init_test(cx);
 9396
 9397        // Enable the close_on_file_delete setting
 9398        cx.update_global(|store: &mut SettingsStore, cx| {
 9399            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9400                settings.close_on_file_delete = Some(true);
 9401            });
 9402        });
 9403
 9404        let fs = FakeFs::new(cx.background_executor.clone());
 9405        let project = Project::test(fs, [], cx).await;
 9406        let (workspace, cx) =
 9407            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9408        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9409
 9410        // Create a dirty test item
 9411        let item = cx.new(|cx| {
 9412            TestItem::new(cx)
 9413                .with_dirty(true)
 9414                .with_label("test.txt")
 9415                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9416        });
 9417
 9418        // Add item to workspace
 9419        workspace.update_in(cx, |workspace, window, cx| {
 9420            workspace.add_item(
 9421                pane.clone(),
 9422                Box::new(item.clone()),
 9423                None,
 9424                false,
 9425                false,
 9426                window,
 9427                cx,
 9428            );
 9429        });
 9430
 9431        // Simulate file deletion
 9432        item.update(cx, |item, _| {
 9433            item.set_has_deleted_file(true);
 9434        });
 9435
 9436        // Emit UpdateTab event to trigger the close behavior
 9437        cx.run_until_parked();
 9438        item.update(cx, |_, cx| {
 9439            cx.emit(ItemEvent::UpdateTab);
 9440        });
 9441
 9442        // Allow any potential close operation to complete
 9443        cx.run_until_parked();
 9444
 9445        // Verify the item remains open (dirty files are not auto-closed)
 9446        pane.read_with(cx, |pane, _| {
 9447            assert_eq!(
 9448                pane.items().count(),
 9449                1,
 9450                "Dirty items should not be automatically closed even when file is deleted"
 9451            );
 9452        });
 9453
 9454        // Verify the item is marked as deleted and still dirty
 9455        item.read_with(cx, |item, _| {
 9456            assert!(
 9457                item.has_deleted_file,
 9458                "Item should be marked as having deleted file"
 9459            );
 9460            assert!(item.is_dirty, "Item should still be dirty");
 9461        });
 9462    }
 9463
 9464    /// Tests that navigation history is cleaned up when files are auto-closed
 9465    /// due to deletion from disk.
 9466    #[gpui::test]
 9467    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
 9468        init_test(cx);
 9469
 9470        // Enable the close_on_file_delete setting
 9471        cx.update_global(|store: &mut SettingsStore, cx| {
 9472            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9473                settings.close_on_file_delete = Some(true);
 9474            });
 9475        });
 9476
 9477        let fs = FakeFs::new(cx.background_executor.clone());
 9478        let project = Project::test(fs, [], cx).await;
 9479        let (workspace, cx) =
 9480            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9481        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9482
 9483        // Create test items
 9484        let item1 = cx.new(|cx| {
 9485            TestItem::new(cx)
 9486                .with_label("test1.txt")
 9487                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
 9488        });
 9489        let item1_id = item1.item_id();
 9490
 9491        let item2 = cx.new(|cx| {
 9492            TestItem::new(cx)
 9493                .with_label("test2.txt")
 9494                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
 9495        });
 9496
 9497        // Add items to workspace
 9498        workspace.update_in(cx, |workspace, window, cx| {
 9499            workspace.add_item(
 9500                pane.clone(),
 9501                Box::new(item1.clone()),
 9502                None,
 9503                false,
 9504                false,
 9505                window,
 9506                cx,
 9507            );
 9508            workspace.add_item(
 9509                pane.clone(),
 9510                Box::new(item2.clone()),
 9511                None,
 9512                false,
 9513                false,
 9514                window,
 9515                cx,
 9516            );
 9517        });
 9518
 9519        // Activate item1 to ensure it gets navigation entries
 9520        pane.update_in(cx, |pane, window, cx| {
 9521            pane.activate_item(0, true, true, window, cx);
 9522        });
 9523
 9524        // Switch to item2 and back to create navigation history
 9525        pane.update_in(cx, |pane, window, cx| {
 9526            pane.activate_item(1, true, true, window, cx);
 9527        });
 9528        cx.run_until_parked();
 9529
 9530        pane.update_in(cx, |pane, window, cx| {
 9531            pane.activate_item(0, true, true, window, cx);
 9532        });
 9533        cx.run_until_parked();
 9534
 9535        // Simulate file deletion for item1
 9536        item1.update(cx, |item, _| {
 9537            item.set_has_deleted_file(true);
 9538        });
 9539
 9540        // Emit UpdateTab event to trigger the close behavior
 9541        item1.update(cx, |_, cx| {
 9542            cx.emit(ItemEvent::UpdateTab);
 9543        });
 9544        cx.run_until_parked();
 9545
 9546        // Verify item1 was closed
 9547        pane.read_with(cx, |pane, _| {
 9548            assert_eq!(
 9549                pane.items().count(),
 9550                1,
 9551                "Should have 1 item remaining after auto-close"
 9552            );
 9553        });
 9554
 9555        // Check navigation history after close
 9556        let has_item = pane.read_with(cx, |pane, cx| {
 9557            let mut has_item = false;
 9558            pane.nav_history().for_each_entry(cx, |entry, _| {
 9559                if entry.item.id() == item1_id {
 9560                    has_item = true;
 9561                }
 9562            });
 9563            has_item
 9564        });
 9565
 9566        assert!(
 9567            !has_item,
 9568            "Navigation history should not contain closed item entries"
 9569        );
 9570    }
 9571
 9572    #[gpui::test]
 9573    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
 9574        cx: &mut TestAppContext,
 9575    ) {
 9576        init_test(cx);
 9577
 9578        let fs = FakeFs::new(cx.background_executor.clone());
 9579        let project = Project::test(fs, [], cx).await;
 9580        let (workspace, cx) =
 9581            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9582        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9583
 9584        let dirty_regular_buffer = cx.new(|cx| {
 9585            TestItem::new(cx)
 9586                .with_dirty(true)
 9587                .with_label("1.txt")
 9588                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9589        });
 9590        let dirty_regular_buffer_2 = cx.new(|cx| {
 9591            TestItem::new(cx)
 9592                .with_dirty(true)
 9593                .with_label("2.txt")
 9594                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9595        });
 9596        let clear_regular_buffer = cx.new(|cx| {
 9597            TestItem::new(cx)
 9598                .with_label("3.txt")
 9599                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9600        });
 9601
 9602        let dirty_multi_buffer = cx.new(|cx| {
 9603            TestItem::new(cx)
 9604                .with_dirty(true)
 9605                .with_singleton(false)
 9606                .with_label("Fake Project Search")
 9607                .with_project_items(&[
 9608                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9609                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9610                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9611                ])
 9612        });
 9613        workspace.update_in(cx, |workspace, window, cx| {
 9614            workspace.add_item(
 9615                pane.clone(),
 9616                Box::new(dirty_regular_buffer.clone()),
 9617                None,
 9618                false,
 9619                false,
 9620                window,
 9621                cx,
 9622            );
 9623            workspace.add_item(
 9624                pane.clone(),
 9625                Box::new(dirty_regular_buffer_2.clone()),
 9626                None,
 9627                false,
 9628                false,
 9629                window,
 9630                cx,
 9631            );
 9632            workspace.add_item(
 9633                pane.clone(),
 9634                Box::new(dirty_multi_buffer.clone()),
 9635                None,
 9636                false,
 9637                false,
 9638                window,
 9639                cx,
 9640            );
 9641        });
 9642
 9643        pane.update_in(cx, |pane, window, cx| {
 9644            pane.activate_item(2, true, true, window, cx);
 9645            assert_eq!(
 9646                pane.active_item().unwrap().item_id(),
 9647                dirty_multi_buffer.item_id(),
 9648                "Should select the multi buffer in the pane"
 9649            );
 9650        });
 9651        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9652            pane.close_active_item(
 9653                &CloseActiveItem {
 9654                    save_intent: None,
 9655                    close_pinned: false,
 9656                },
 9657                window,
 9658                cx,
 9659            )
 9660        });
 9661        cx.background_executor.run_until_parked();
 9662        assert!(
 9663            !cx.has_pending_prompt(),
 9664            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
 9665        );
 9666        close_multi_buffer_task
 9667            .await
 9668            .expect("Closing multi buffer failed");
 9669        pane.update(cx, |pane, cx| {
 9670            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
 9671            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
 9672            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
 9673            assert_eq!(
 9674                pane.items()
 9675                    .map(|item| item.item_id())
 9676                    .sorted()
 9677                    .collect::<Vec<_>>(),
 9678                vec![
 9679                    dirty_regular_buffer.item_id(),
 9680                    dirty_regular_buffer_2.item_id(),
 9681                ],
 9682                "Should have no multi buffer left in the pane"
 9683            );
 9684            assert!(dirty_regular_buffer.read(cx).is_dirty);
 9685            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
 9686        });
 9687    }
 9688
 9689    #[gpui::test]
 9690    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
 9691        init_test(cx);
 9692        let fs = FakeFs::new(cx.executor());
 9693        let project = Project::test(fs, [], cx).await;
 9694        let (workspace, cx) =
 9695            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9696
 9697        // Add a new panel to the right dock, opening the dock and setting the
 9698        // focus to the new panel.
 9699        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9700            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9701            workspace.add_panel(panel.clone(), window, cx);
 9702
 9703            workspace
 9704                .right_dock()
 9705                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9706
 9707            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9708
 9709            panel
 9710        });
 9711
 9712        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
 9713        // panel to the next valid position which, in this case, is the left
 9714        // dock.
 9715        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9716        workspace.update(cx, |workspace, cx| {
 9717            assert!(workspace.left_dock().read(cx).is_open());
 9718            assert_eq!(panel.read(cx).position, DockPosition::Left);
 9719        });
 9720
 9721        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
 9722        // panel to the next valid position which, in this case, is the bottom
 9723        // dock.
 9724        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9725        workspace.update(cx, |workspace, cx| {
 9726            assert!(workspace.bottom_dock().read(cx).is_open());
 9727            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
 9728        });
 9729
 9730        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
 9731        // around moving the panel to its initial position, the right dock.
 9732        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9733        workspace.update(cx, |workspace, cx| {
 9734            assert!(workspace.right_dock().read(cx).is_open());
 9735            assert_eq!(panel.read(cx).position, DockPosition::Right);
 9736        });
 9737
 9738        // Remove focus from the panel, ensuring that, if the panel is not
 9739        // focused, the `MoveFocusedPanelToNextPosition` action does not update
 9740        // the panel's position, so the panel is still in the right dock.
 9741        workspace.update_in(cx, |workspace, window, cx| {
 9742            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9743        });
 9744
 9745        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9746        workspace.update(cx, |workspace, cx| {
 9747            assert!(workspace.right_dock().read(cx).is_open());
 9748            assert_eq!(panel.read(cx).position, DockPosition::Right);
 9749        });
 9750    }
 9751
 9752    #[gpui::test]
 9753    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
 9754        init_test(cx);
 9755
 9756        let fs = FakeFs::new(cx.executor());
 9757        let project = Project::test(fs, [], cx).await;
 9758        let (workspace, cx) =
 9759            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9760
 9761        let item_1 = cx.new(|cx| {
 9762            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
 9763        });
 9764        workspace.update_in(cx, |workspace, window, cx| {
 9765            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
 9766            workspace.move_item_to_pane_in_direction(
 9767                &MoveItemToPaneInDirection {
 9768                    direction: SplitDirection::Right,
 9769                    focus: true,
 9770                },
 9771                window,
 9772                cx,
 9773            );
 9774            workspace.move_item_to_pane_at_index(
 9775                &MoveItemToPane {
 9776                    destination: 3,
 9777                    focus: true,
 9778                },
 9779                window,
 9780                cx,
 9781            );
 9782
 9783            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
 9784            assert_eq!(
 9785                pane_items_paths(&workspace.active_pane, cx),
 9786                vec!["first.txt".to_string()],
 9787                "Single item was not moved anywhere"
 9788            );
 9789        });
 9790
 9791        let item_2 = cx.new(|cx| {
 9792            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
 9793        });
 9794        workspace.update_in(cx, |workspace, window, cx| {
 9795            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
 9796            assert_eq!(
 9797                pane_items_paths(&workspace.panes[0], cx),
 9798                vec!["first.txt".to_string(), "second.txt".to_string()],
 9799            );
 9800            workspace.move_item_to_pane_in_direction(
 9801                &MoveItemToPaneInDirection {
 9802                    direction: SplitDirection::Right,
 9803                    focus: true,
 9804                },
 9805                window,
 9806                cx,
 9807            );
 9808
 9809            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
 9810            assert_eq!(
 9811                pane_items_paths(&workspace.panes[0], cx),
 9812                vec!["first.txt".to_string()],
 9813                "After moving, one item should be left in the original pane"
 9814            );
 9815            assert_eq!(
 9816                pane_items_paths(&workspace.panes[1], cx),
 9817                vec!["second.txt".to_string()],
 9818                "New item should have been moved to the new pane"
 9819            );
 9820        });
 9821
 9822        let item_3 = cx.new(|cx| {
 9823            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
 9824        });
 9825        workspace.update_in(cx, |workspace, window, cx| {
 9826            let original_pane = workspace.panes[0].clone();
 9827            workspace.set_active_pane(&original_pane, window, cx);
 9828            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
 9829            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
 9830            assert_eq!(
 9831                pane_items_paths(&workspace.active_pane, cx),
 9832                vec!["first.txt".to_string(), "third.txt".to_string()],
 9833                "New pane should be ready to move one item out"
 9834            );
 9835
 9836            workspace.move_item_to_pane_at_index(
 9837                &MoveItemToPane {
 9838                    destination: 3,
 9839                    focus: true,
 9840                },
 9841                window,
 9842                cx,
 9843            );
 9844            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
 9845            assert_eq!(
 9846                pane_items_paths(&workspace.active_pane, cx),
 9847                vec!["first.txt".to_string()],
 9848                "After moving, one item should be left in the original pane"
 9849            );
 9850            assert_eq!(
 9851                pane_items_paths(&workspace.panes[1], cx),
 9852                vec!["second.txt".to_string()],
 9853                "Previously created pane should be unchanged"
 9854            );
 9855            assert_eq!(
 9856                pane_items_paths(&workspace.panes[2], cx),
 9857                vec!["third.txt".to_string()],
 9858                "New item should have been moved to the new pane"
 9859            );
 9860        });
 9861    }
 9862
 9863    mod register_project_item_tests {
 9864
 9865        use super::*;
 9866
 9867        // View
 9868        struct TestPngItemView {
 9869            focus_handle: FocusHandle,
 9870        }
 9871        // Model
 9872        struct TestPngItem {}
 9873
 9874        impl project::ProjectItem for TestPngItem {
 9875            fn try_open(
 9876                _project: &Entity<Project>,
 9877                path: &ProjectPath,
 9878                cx: &mut App,
 9879            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
 9880                if path.path.extension().unwrap() == "png" {
 9881                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
 9882                } else {
 9883                    None
 9884                }
 9885            }
 9886
 9887            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
 9888                None
 9889            }
 9890
 9891            fn project_path(&self, _: &App) -> Option<ProjectPath> {
 9892                None
 9893            }
 9894
 9895            fn is_dirty(&self) -> bool {
 9896                false
 9897            }
 9898        }
 9899
 9900        impl Item for TestPngItemView {
 9901            type Event = ();
 9902            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
 9903                "".into()
 9904            }
 9905        }
 9906        impl EventEmitter<()> for TestPngItemView {}
 9907        impl Focusable for TestPngItemView {
 9908            fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9909                self.focus_handle.clone()
 9910            }
 9911        }
 9912
 9913        impl Render for TestPngItemView {
 9914            fn render(
 9915                &mut self,
 9916                _window: &mut Window,
 9917                _cx: &mut Context<Self>,
 9918            ) -> impl IntoElement {
 9919                Empty
 9920            }
 9921        }
 9922
 9923        impl ProjectItem for TestPngItemView {
 9924            type Item = TestPngItem;
 9925
 9926            fn for_project_item(
 9927                _project: Entity<Project>,
 9928                _pane: Option<&Pane>,
 9929                _item: Entity<Self::Item>,
 9930                _: &mut Window,
 9931                cx: &mut Context<Self>,
 9932            ) -> Self
 9933            where
 9934                Self: Sized,
 9935            {
 9936                Self {
 9937                    focus_handle: cx.focus_handle(),
 9938                }
 9939            }
 9940        }
 9941
 9942        // View
 9943        struct TestIpynbItemView {
 9944            focus_handle: FocusHandle,
 9945        }
 9946        // Model
 9947        struct TestIpynbItem {}
 9948
 9949        impl project::ProjectItem for TestIpynbItem {
 9950            fn try_open(
 9951                _project: &Entity<Project>,
 9952                path: &ProjectPath,
 9953                cx: &mut App,
 9954            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
 9955                if path.path.extension().unwrap() == "ipynb" {
 9956                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
 9957                } else {
 9958                    None
 9959                }
 9960            }
 9961
 9962            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
 9963                None
 9964            }
 9965
 9966            fn project_path(&self, _: &App) -> Option<ProjectPath> {
 9967                None
 9968            }
 9969
 9970            fn is_dirty(&self) -> bool {
 9971                false
 9972            }
 9973        }
 9974
 9975        impl Item for TestIpynbItemView {
 9976            type Event = ();
 9977            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
 9978                "".into()
 9979            }
 9980        }
 9981        impl EventEmitter<()> for TestIpynbItemView {}
 9982        impl Focusable for TestIpynbItemView {
 9983            fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9984                self.focus_handle.clone()
 9985            }
 9986        }
 9987
 9988        impl Render for TestIpynbItemView {
 9989            fn render(
 9990                &mut self,
 9991                _window: &mut Window,
 9992                _cx: &mut Context<Self>,
 9993            ) -> impl IntoElement {
 9994                Empty
 9995            }
 9996        }
 9997
 9998        impl ProjectItem for TestIpynbItemView {
 9999            type Item = TestIpynbItem;
10000
10001            fn for_project_item(
10002                _project: Entity<Project>,
10003                _pane: Option<&Pane>,
10004                _item: Entity<Self::Item>,
10005                _: &mut Window,
10006                cx: &mut Context<Self>,
10007            ) -> Self
10008            where
10009                Self: Sized,
10010            {
10011                Self {
10012                    focus_handle: cx.focus_handle(),
10013                }
10014            }
10015        }
10016
10017        struct TestAlternatePngItemView {
10018            focus_handle: FocusHandle,
10019        }
10020
10021        impl Item for TestAlternatePngItemView {
10022            type Event = ();
10023            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10024                "".into()
10025            }
10026        }
10027
10028        impl EventEmitter<()> for TestAlternatePngItemView {}
10029        impl Focusable for TestAlternatePngItemView {
10030            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10031                self.focus_handle.clone()
10032            }
10033        }
10034
10035        impl Render for TestAlternatePngItemView {
10036            fn render(
10037                &mut self,
10038                _window: &mut Window,
10039                _cx: &mut Context<Self>,
10040            ) -> impl IntoElement {
10041                Empty
10042            }
10043        }
10044
10045        impl ProjectItem for TestAlternatePngItemView {
10046            type Item = TestPngItem;
10047
10048            fn for_project_item(
10049                _project: Entity<Project>,
10050                _pane: Option<&Pane>,
10051                _item: Entity<Self::Item>,
10052                _: &mut Window,
10053                cx: &mut Context<Self>,
10054            ) -> Self
10055            where
10056                Self: Sized,
10057            {
10058                Self {
10059                    focus_handle: cx.focus_handle(),
10060                }
10061            }
10062        }
10063
10064        #[gpui::test]
10065        async fn test_register_project_item(cx: &mut TestAppContext) {
10066            init_test(cx);
10067
10068            cx.update(|cx| {
10069                register_project_item::<TestPngItemView>(cx);
10070                register_project_item::<TestIpynbItemView>(cx);
10071            });
10072
10073            let fs = FakeFs::new(cx.executor());
10074            fs.insert_tree(
10075                "/root1",
10076                json!({
10077                    "one.png": "BINARYDATAHERE",
10078                    "two.ipynb": "{ totally a notebook }",
10079                    "three.txt": "editing text, sure why not?"
10080                }),
10081            )
10082            .await;
10083
10084            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10085            let (workspace, cx) =
10086                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10087
10088            let worktree_id = project.update(cx, |project, cx| {
10089                project.worktrees(cx).next().unwrap().read(cx).id()
10090            });
10091
10092            let handle = workspace
10093                .update_in(cx, |workspace, window, cx| {
10094                    let project_path = (worktree_id, "one.png");
10095                    workspace.open_path(project_path, None, true, window, cx)
10096                })
10097                .await
10098                .unwrap();
10099
10100            // Now we can check if the handle we got back errored or not
10101            assert_eq!(
10102                handle.to_any().entity_type(),
10103                TypeId::of::<TestPngItemView>()
10104            );
10105
10106            let handle = workspace
10107                .update_in(cx, |workspace, window, cx| {
10108                    let project_path = (worktree_id, "two.ipynb");
10109                    workspace.open_path(project_path, None, true, window, cx)
10110                })
10111                .await
10112                .unwrap();
10113
10114            assert_eq!(
10115                handle.to_any().entity_type(),
10116                TypeId::of::<TestIpynbItemView>()
10117            );
10118
10119            let handle = workspace
10120                .update_in(cx, |workspace, window, cx| {
10121                    let project_path = (worktree_id, "three.txt");
10122                    workspace.open_path(project_path, None, true, window, cx)
10123                })
10124                .await;
10125            assert!(handle.is_err());
10126        }
10127
10128        #[gpui::test]
10129        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
10130            init_test(cx);
10131
10132            cx.update(|cx| {
10133                register_project_item::<TestPngItemView>(cx);
10134                register_project_item::<TestAlternatePngItemView>(cx);
10135            });
10136
10137            let fs = FakeFs::new(cx.executor());
10138            fs.insert_tree(
10139                "/root1",
10140                json!({
10141                    "one.png": "BINARYDATAHERE",
10142                    "two.ipynb": "{ totally a notebook }",
10143                    "three.txt": "editing text, sure why not?"
10144                }),
10145            )
10146            .await;
10147            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10148            let (workspace, cx) =
10149                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10150            let worktree_id = project.update(cx, |project, cx| {
10151                project.worktrees(cx).next().unwrap().read(cx).id()
10152            });
10153
10154            let handle = workspace
10155                .update_in(cx, |workspace, window, cx| {
10156                    let project_path = (worktree_id, "one.png");
10157                    workspace.open_path(project_path, None, true, window, cx)
10158                })
10159                .await
10160                .unwrap();
10161
10162            // This _must_ be the second item registered
10163            assert_eq!(
10164                handle.to_any().entity_type(),
10165                TypeId::of::<TestAlternatePngItemView>()
10166            );
10167
10168            let handle = workspace
10169                .update_in(cx, |workspace, window, cx| {
10170                    let project_path = (worktree_id, "three.txt");
10171                    workspace.open_path(project_path, None, true, window, cx)
10172                })
10173                .await;
10174            assert!(handle.is_err());
10175        }
10176    }
10177
10178    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
10179        pane.read(cx)
10180            .items()
10181            .flat_map(|item| {
10182                item.project_paths(cx)
10183                    .into_iter()
10184                    .map(|path| path.path.to_string_lossy().to_string())
10185            })
10186            .collect()
10187    }
10188
10189    pub fn init_test(cx: &mut TestAppContext) {
10190        cx.update(|cx| {
10191            let settings_store = SettingsStore::test(cx);
10192            cx.set_global(settings_store);
10193            theme::init(theme::LoadThemes::JustBase, cx);
10194            language::init(cx);
10195            crate::init_settings(cx);
10196            Project::init_settings(cx);
10197        });
10198    }
10199
10200    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
10201        let item = TestProjectItem::new(id, path, cx);
10202        item.update(cx, |item, _| {
10203            item.is_dirty = true;
10204        });
10205        item
10206    }
10207}