workspace2.rs

   1pub mod dock;
   2pub mod item;
   3// pub mod notifications;
   4pub mod pane;
   5pub mod pane_group;
   6mod persistence;
   7pub mod searchable;
   8// pub mod shared_screen;
   9mod status_bar;
  10mod toolbar;
  11mod workspace_settings;
  12
  13use anyhow::{anyhow, Result};
  14use call2::ActiveCall;
  15use client2::{
  16    proto::{self, PeerId},
  17    Client, TypedEnvelope, UserStore,
  18};
  19use collections::{HashMap, HashSet};
  20use dock::Dock;
  21use futures::{
  22    channel::{mpsc, oneshot},
  23    FutureExt,
  24};
  25use gpui2::{
  26    AnyModel, AnyView, AppContext, AsyncAppContext, AsyncWindowContext, DisplayId, EventEmitter,
  27    MainThread, Model, ModelContext, Subscription, Task, View, ViewContext, VisualContext,
  28    WeakModel, WeakView, WindowBounds, WindowHandle, WindowOptions,
  29};
  30use item::{FollowableItem, FollowableItemHandle, Item, ItemHandle, ProjectItem};
  31use language2::LanguageRegistry;
  32use node_runtime::NodeRuntime;
  33pub use pane::*;
  34pub use pane_group::*;
  35use persistence::model::{ItemId, WorkspaceLocation};
  36use project2::{Project, ProjectEntryId, ProjectPath, Worktree};
  37use std::{
  38    any::TypeId,
  39    path::{Path, PathBuf},
  40    sync::{atomic::AtomicUsize, Arc},
  41    time::Duration,
  42};
  43pub use toolbar::{ToolbarItemLocation, ToolbarItemView};
  44use util::ResultExt;
  45use uuid::Uuid;
  46
  47use crate::persistence::model::{
  48    DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup,
  49    SerializedWorkspace,
  50};
  51
  52// lazy_static! {
  53//     static ref ZED_WINDOW_SIZE: Option<Vector2F> = env::var("ZED_WINDOW_SIZE")
  54//         .ok()
  55//         .as_deref()
  56//         .and_then(parse_pixel_position_env_var);
  57//     static ref ZED_WINDOW_POSITION: Option<Vector2F> = env::var("ZED_WINDOW_POSITION")
  58//         .ok()
  59//         .as_deref()
  60//         .and_then(parse_pixel_position_env_var);
  61// }
  62
  63// pub trait Modal: View {
  64//     fn has_focus(&self) -> bool;
  65//     fn dismiss_on_event(event: &Self::Event) -> bool;
  66// }
  67
  68// trait ModalHandle {
  69//     fn as_any(&self) -> &AnyViewHandle;
  70//     fn has_focus(&self, cx: &WindowContext) -> bool;
  71// }
  72
  73// impl<T: Modal> ModalHandle for View<T> {
  74//     fn as_any(&self) -> &AnyViewHandle {
  75//         self
  76//     }
  77
  78//     fn has_focus(&self, cx: &WindowContext) -> bool {
  79//         self.read(cx).has_focus()
  80//     }
  81// }
  82
  83// #[derive(Clone, PartialEq)]
  84// pub struct RemoveWorktreeFromProject(pub WorktreeId);
  85
  86// actions!(
  87//     workspace,
  88//     [
  89//         Open,
  90//         NewFile,
  91//         NewWindow,
  92//         CloseWindow,
  93//         CloseInactiveTabsAndPanes,
  94//         AddFolderToProject,
  95//         Unfollow,
  96//         SaveAs,
  97//         ReloadActiveItem,
  98//         ActivatePreviousPane,
  99//         ActivateNextPane,
 100//         FollowNextCollaborator,
 101//         NewTerminal,
 102//         NewCenterTerminal,
 103//         ToggleTerminalFocus,
 104//         NewSearch,
 105//         Feedback,
 106//         Restart,
 107//         Welcome,
 108//         ToggleZoom,
 109//         ToggleLeftDock,
 110//         ToggleRightDock,
 111//         ToggleBottomDock,
 112//         CloseAllDocks,
 113//     ]
 114// );
 115
 116// #[derive(Clone, PartialEq)]
 117// pub struct OpenPaths {
 118//     pub paths: Vec<PathBuf>,
 119// }
 120
 121// #[derive(Clone, Deserialize, PartialEq)]
 122// pub struct ActivatePane(pub usize);
 123
 124// #[derive(Clone, Deserialize, PartialEq)]
 125// pub struct ActivatePaneInDirection(pub SplitDirection);
 126
 127// #[derive(Clone, Deserialize, PartialEq)]
 128// pub struct SwapPaneInDirection(pub SplitDirection);
 129
 130// #[derive(Clone, Deserialize, PartialEq)]
 131// pub struct NewFileInDirection(pub SplitDirection);
 132
 133// #[derive(Clone, PartialEq, Debug, Deserialize)]
 134// #[serde(rename_all = "camelCase")]
 135// pub struct SaveAll {
 136//     pub save_intent: Option<SaveIntent>,
 137// }
 138
 139// #[derive(Clone, PartialEq, Debug, Deserialize)]
 140// #[serde(rename_all = "camelCase")]
 141// pub struct Save {
 142//     pub save_intent: Option<SaveIntent>,
 143// }
 144
 145// #[derive(Clone, PartialEq, Debug, Deserialize, Default)]
 146// #[serde(rename_all = "camelCase")]
 147// pub struct CloseAllItemsAndPanes {
 148//     pub save_intent: Option<SaveIntent>,
 149// }
 150
 151// #[derive(Deserialize)]
 152// pub struct Toast {
 153//     id: usize,
 154//     msg: Cow<'static, str>,
 155//     #[serde(skip)]
 156//     on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut WindowContext)>)>,
 157// }
 158
 159// impl Toast {
 160//     pub fn new<I: Into<Cow<'static, str>>>(id: usize, msg: I) -> Self {
 161//         Toast {
 162//             id,
 163//             msg: msg.into(),
 164//             on_click: None,
 165//         }
 166//     }
 167
 168//     pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
 169//     where
 170//         M: Into<Cow<'static, str>>,
 171//         F: Fn(&mut WindowContext) + 'static,
 172//     {
 173//         self.on_click = Some((message.into(), Arc::new(on_click)));
 174//         self
 175//     }
 176// }
 177
 178// impl PartialEq for Toast {
 179//     fn eq(&self, other: &Self) -> bool {
 180//         self.id == other.id
 181//             && self.msg == other.msg
 182//             && self.on_click.is_some() == other.on_click.is_some()
 183//     }
 184// }
 185
 186// impl Clone for Toast {
 187//     fn clone(&self) -> Self {
 188//         Toast {
 189//             id: self.id,
 190//             msg: self.msg.to_owned(),
 191//             on_click: self.on_click.clone(),
 192//         }
 193//     }
 194// }
 195
 196// #[derive(Clone, Deserialize, PartialEq)]
 197// pub struct OpenTerminal {
 198//     pub working_directory: PathBuf,
 199// }
 200
 201// impl_actions!(
 202//     workspace,
 203//     [
 204//         ActivatePane,
 205//         ActivatePaneInDirection,
 206//         SwapPaneInDirection,
 207//         NewFileInDirection,
 208//         Toast,
 209//         OpenTerminal,
 210//         SaveAll,
 211//         Save,
 212//         CloseAllItemsAndPanes,
 213//     ]
 214// );
 215
 216pub type WorkspaceId = i64;
 217
 218// pub fn init_settings(cx: &mut AppContext) {
 219//     settings::register::<WorkspaceSettings>(cx);
 220//     settings::register::<item::ItemSettings>(cx);
 221// }
 222
 223// pub fn init(app_state: Arc<AppState>, cx: &mut AppContext) {
 224//     init_settings(cx);
 225//     pane::init(cx);
 226//     notifications::init(cx);
 227
 228//     cx.add_global_action({
 229//         let app_state = Arc::downgrade(&app_state);
 230//         move |_: &Open, cx: &mut AppContext| {
 231//             let mut paths = cx.prompt_for_paths(PathPromptOptions {
 232//                 files: true,
 233//                 directories: true,
 234//                 multiple: true,
 235//             });
 236
 237//             if let Some(app_state) = app_state.upgrade() {
 238//                 cx.spawn(move |mut cx| async move {
 239//                     if let Some(paths) = paths.recv().await.flatten() {
 240//                         cx.update(|cx| {
 241//                             open_paths(&paths, &app_state, None, cx).detach_and_log_err(cx)
 242//                         });
 243//                     }
 244//                 })
 245//                 .detach();
 246//             }
 247//         }
 248//     });
 249//     cx.add_async_action(Workspace::open);
 250
 251//     cx.add_async_action(Workspace::follow_next_collaborator);
 252//     cx.add_async_action(Workspace::close);
 253//     cx.add_async_action(Workspace::close_inactive_items_and_panes);
 254//     cx.add_async_action(Workspace::close_all_items_and_panes);
 255//     cx.add_global_action(Workspace::close_global);
 256//     cx.add_global_action(restart);
 257//     cx.add_async_action(Workspace::save_all);
 258//     cx.add_action(Workspace::add_folder_to_project);
 259//     cx.add_action(
 260//         |workspace: &mut Workspace, _: &Unfollow, cx: &mut ViewContext<Workspace>| {
 261//             let pane = workspace.active_pane().clone();
 262//             workspace.unfollow(&pane, cx);
 263//         },
 264//     );
 265//     cx.add_action(
 266//         |workspace: &mut Workspace, action: &Save, cx: &mut ViewContext<Workspace>| {
 267//             workspace
 268//                 .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), cx)
 269//                 .detach_and_log_err(cx);
 270//         },
 271//     );
 272//     cx.add_action(
 273//         |workspace: &mut Workspace, _: &SaveAs, cx: &mut ViewContext<Workspace>| {
 274//             workspace
 275//                 .save_active_item(SaveIntent::SaveAs, cx)
 276//                 .detach_and_log_err(cx);
 277//         },
 278//     );
 279//     cx.add_action(|workspace: &mut Workspace, _: &ActivatePreviousPane, cx| {
 280//         workspace.activate_previous_pane(cx)
 281//     });
 282//     cx.add_action(|workspace: &mut Workspace, _: &ActivateNextPane, cx| {
 283//         workspace.activate_next_pane(cx)
 284//     });
 285
 286//     cx.add_action(
 287//         |workspace: &mut Workspace, action: &ActivatePaneInDirection, cx| {
 288//             workspace.activate_pane_in_direction(action.0, cx)
 289//         },
 290//     );
 291
 292//     cx.add_action(
 293//         |workspace: &mut Workspace, action: &SwapPaneInDirection, cx| {
 294//             workspace.swap_pane_in_direction(action.0, cx)
 295//         },
 296//     );
 297
 298//     cx.add_action(|workspace: &mut Workspace, _: &ToggleLeftDock, cx| {
 299//         workspace.toggle_dock(DockPosition::Left, cx);
 300//     });
 301//     cx.add_action(|workspace: &mut Workspace, _: &ToggleRightDock, cx| {
 302//         workspace.toggle_dock(DockPosition::Right, cx);
 303//     });
 304//     cx.add_action(|workspace: &mut Workspace, _: &ToggleBottomDock, cx| {
 305//         workspace.toggle_dock(DockPosition::Bottom, cx);
 306//     });
 307//     cx.add_action(|workspace: &mut Workspace, _: &CloseAllDocks, cx| {
 308//         workspace.close_all_docks(cx);
 309//     });
 310//     cx.add_action(Workspace::activate_pane_at_index);
 311//     cx.add_action(|workspace: &mut Workspace, _: &ReopenClosedItem, cx| {
 312//         workspace.reopen_closed_item(cx).detach();
 313//     });
 314//     cx.add_action(|workspace: &mut Workspace, _: &GoBack, cx| {
 315//         workspace
 316//             .go_back(workspace.active_pane().downgrade(), cx)
 317//             .detach();
 318//     });
 319//     cx.add_action(|workspace: &mut Workspace, _: &GoForward, cx| {
 320//         workspace
 321//             .go_forward(workspace.active_pane().downgrade(), cx)
 322//             .detach();
 323//     });
 324
 325//     cx.add_action(|_: &mut Workspace, _: &install_cli::Install, cx| {
 326//         cx.spawn(|workspace, mut cx| async move {
 327//             let err = install_cli::install_cli(&cx)
 328//                 .await
 329//                 .context("Failed to create CLI symlink");
 330
 331//             workspace.update(&mut cx, |workspace, cx| {
 332//                 if matches!(err, Err(_)) {
 333//                     err.notify_err(workspace, cx);
 334//                 } else {
 335//                     workspace.show_notification(1, cx, |cx| {
 336//                         cx.add_view(|_| {
 337//                             MessageNotification::new("Successfully installed the `zed` binary")
 338//                         })
 339//                     });
 340//                 }
 341//             })
 342//         })
 343//         .detach();
 344//     });
 345// }
 346
 347type ProjectItemBuilders =
 348    HashMap<TypeId, fn(Model<Project>, AnyModel, &mut ViewContext<Pane>) -> Box<dyn ItemHandle>>;
 349pub fn register_project_item<I: ProjectItem>(cx: &mut AppContext) {
 350    let builders = cx.default_global::<ProjectItemBuilders>();
 351    builders.insert(TypeId::of::<I::Item>(), |project, model, cx| {
 352        let item = model.downcast::<I::Item>().unwrap();
 353        Box::new(cx.build_view(|cx| I::for_project_item(project, item, cx)))
 354    });
 355}
 356
 357type FollowableItemBuilder = fn(
 358    View<Pane>,
 359    View<Workspace>,
 360    ViewId,
 361    &mut Option<proto::view::Variant>,
 362    &mut AppContext,
 363) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>;
 364type FollowableItemBuilders = HashMap<
 365    TypeId,
 366    (
 367        FollowableItemBuilder,
 368        fn(&AnyView) -> Box<dyn FollowableItemHandle>,
 369    ),
 370>;
 371pub fn register_followable_item<I: FollowableItem>(cx: &mut AppContext) {
 372    let builders = cx.default_global::<FollowableItemBuilders>();
 373    builders.insert(
 374        TypeId::of::<I>(),
 375        (
 376            |pane, workspace, id, state, cx| {
 377                I::from_state_proto(pane, workspace, id, state, cx).map(|task| {
 378                    cx.executor()
 379                        .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
 380                })
 381            },
 382            |this| Box::new(this.clone().downcast::<I>().unwrap()),
 383        ),
 384    );
 385}
 386
 387type ItemDeserializers = HashMap<
 388    Arc<str>,
 389    fn(
 390        Model<Project>,
 391        WeakView<Workspace>,
 392        WorkspaceId,
 393        ItemId,
 394        &mut ViewContext<Pane>,
 395    ) -> Task<Result<Box<dyn ItemHandle>>>,
 396>;
 397pub fn register_deserializable_item<I: Item>(cx: &mut AppContext) {
 398    cx.update_global(|deserializers: &mut ItemDeserializers, _cx| {
 399        if let Some(serialized_item_kind) = I::serialized_item_kind() {
 400            deserializers.insert(
 401                Arc::from(serialized_item_kind),
 402                |project, workspace, workspace_id, item_id, cx| {
 403                    let task = I::deserialize(project, workspace, workspace_id, item_id, cx);
 404                    cx.spawn_on_main(|cx| async { Ok(Box::new(task.await?) as Box<_>) })
 405                },
 406            );
 407        }
 408    });
 409}
 410
 411pub struct AppState {
 412    pub languages: Arc<LanguageRegistry>,
 413    pub client: Arc<Client>,
 414    pub user_store: Model<UserStore>,
 415    pub workspace_store: Model<WorkspaceStore>,
 416    pub fs: Arc<dyn fs2::Fs>,
 417    pub build_window_options:
 418        fn(Option<WindowBounds>, Option<Uuid>, MainThread<AppContext>) -> WindowOptions,
 419    pub initialize_workspace: fn(
 420        WeakView<Workspace>,
 421        bool,
 422        Arc<AppState>,
 423        AsyncWindowContext,
 424    ) -> Task<anyhow::Result<()>>,
 425    pub node_runtime: Arc<dyn NodeRuntime>,
 426}
 427
 428pub struct WorkspaceStore {
 429    workspaces: HashSet<WeakView<Workspace>>,
 430    followers: Vec<Follower>,
 431    client: Arc<Client>,
 432    _subscriptions: Vec<client2::Subscription>,
 433}
 434
 435#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 436struct Follower {
 437    project_id: Option<u64>,
 438    peer_id: PeerId,
 439}
 440
 441// todo!()
 442// impl AppState {
 443//     #[cfg(any(test, feature = "test-support"))]
 444//     pub fn test(cx: &mut AppContext) -> Arc<Self> {
 445//         use node_runtime::FakeNodeRuntime;
 446//         use settings::SettingsStore;
 447
 448//         if !cx.has_global::<SettingsStore>() {
 449//             cx.set_global(SettingsStore::test(cx));
 450//         }
 451
 452//         let fs = fs::FakeFs::new(cx.background().clone());
 453//         let languages = Arc::new(LanguageRegistry::test());
 454//         let http_client = util::http::FakeHttpClient::with_404_response();
 455//         let client = Client::new(http_client.clone(), cx);
 456//         let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
 457//         let workspace_store = cx.add_model(|cx| WorkspaceStore::new(client.clone(), cx));
 458
 459//         theme::init((), cx);
 460//         client::init(&client, cx);
 461//         crate::init_settings(cx);
 462
 463//         Arc::new(Self {
 464//             client,
 465//             fs,
 466//             languages,
 467//             user_store,
 468//             // channel_store,
 469//             workspace_store,
 470//             node_runtime: FakeNodeRuntime::new(),
 471//             initialize_workspace: |_, _, _, _| Task::ready(Ok(())),
 472//             build_window_options: |_, _, _| Default::default(),
 473//         })
 474//     }
 475// }
 476
 477struct DelayedDebouncedEditAction {
 478    task: Option<Task<()>>,
 479    cancel_channel: Option<oneshot::Sender<()>>,
 480}
 481
 482impl DelayedDebouncedEditAction {
 483    fn new() -> DelayedDebouncedEditAction {
 484        DelayedDebouncedEditAction {
 485            task: None,
 486            cancel_channel: None,
 487        }
 488    }
 489
 490    fn fire_new<F>(&mut self, delay: Duration, cx: &mut ViewContext<Workspace>, func: F)
 491    where
 492        F: 'static + Send + FnOnce(&mut Workspace, &mut ViewContext<Workspace>) -> Task<Result<()>>,
 493    {
 494        if let Some(channel) = self.cancel_channel.take() {
 495            _ = channel.send(());
 496        }
 497
 498        let (sender, mut receiver) = oneshot::channel::<()>();
 499        self.cancel_channel = Some(sender);
 500
 501        let previous_task = self.task.take();
 502        self.task = Some(cx.spawn(move |workspace, mut cx| async move {
 503            let mut timer = cx.executor().timer(delay).fuse();
 504            if let Some(previous_task) = previous_task {
 505                previous_task.await;
 506            }
 507
 508            futures::select_biased! {
 509                _ = receiver => return,
 510                    _ = timer => {}
 511            }
 512
 513            if let Some(result) = workspace
 514                .update(&mut cx, |workspace, cx| (func)(workspace, cx))
 515                .log_err()
 516            {
 517                result.await.log_err();
 518            }
 519        }));
 520    }
 521}
 522
 523pub enum Event {
 524    PaneAdded(View<Pane>),
 525    ContactRequestedJoin(u64),
 526}
 527
 528pub struct Workspace {
 529    weak_self: WeakView<Self>,
 530    //     modal: Option<ActiveModal>,
 531    //     zoomed: Option<AnyWeakViewHandle>,
 532    //     zoomed_position: Option<DockPosition>,
 533    center: PaneGroup,
 534    left_dock: View<Dock>,
 535    bottom_dock: View<Dock>,
 536    right_dock: View<Dock>,
 537    panes: Vec<View<Pane>>,
 538    panes_by_item: HashMap<usize, WeakView<Pane>>,
 539    //     active_pane: View<Pane>,
 540    last_active_center_pane: Option<WeakView<Pane>>,
 541    //     last_active_view_id: Option<proto::ViewId>,
 542    //     status_bar: View<StatusBar>,
 543    //     titlebar_item: Option<AnyViewHandle>,
 544    //     notifications: Vec<(TypeId, usize, Box<dyn NotificationHandle>)>,
 545    project: Model<Project>,
 546    follower_states: HashMap<View<Pane>, FollowerState>,
 547    last_leaders_by_pane: HashMap<WeakView<Pane>, PeerId>,
 548    //     window_edited: bool,
 549    active_call: Option<(Model<ActiveCall>, Vec<Subscription>)>,
 550    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 551    database_id: WorkspaceId,
 552    app_state: Arc<AppState>,
 553    //     subscriptions: Vec<Subscription>,
 554    //     _apply_leader_updates: Task<Result<()>>,
 555    //     _observe_current_user: Task<Result<()>>,
 556    //     _schedule_serialize: Option<Task<()>>,
 557    pane_history_timestamp: Arc<AtomicUsize>,
 558}
 559
 560// struct ActiveModal {
 561//     view: Box<dyn ModalHandle>,
 562//     previously_focused_view_id: Option<usize>,
 563// }
 564
 565#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 566pub struct ViewId {
 567    pub creator: PeerId,
 568    pub id: u64,
 569}
 570
 571#[derive(Default)]
 572struct FollowerState {
 573    leader_id: PeerId,
 574    active_view_id: Option<ViewId>,
 575    items_by_leader_view_id: HashMap<ViewId, Box<dyn FollowableItemHandle>>,
 576}
 577
 578enum WorkspaceBounds {}
 579
 580impl Workspace {
 581    //     pub fn new(
 582    //         workspace_id: WorkspaceId,
 583    //         project: ModelHandle<Project>,
 584    //         app_state: Arc<AppState>,
 585    //         cx: &mut ViewContext<Self>,
 586    //     ) -> Self {
 587    //         cx.observe(&project, |_, _, cx| cx.notify()).detach();
 588    //         cx.subscribe(&project, move |this, _, event, cx| {
 589    //             match event {
 590    //                 project::Event::RemoteIdChanged(_) => {
 591    //                     this.update_window_title(cx);
 592    //                 }
 593
 594    //                 project::Event::CollaboratorLeft(peer_id) => {
 595    //                     this.collaborator_left(*peer_id, cx);
 596    //                 }
 597
 598    //                 project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded => {
 599    //                     this.update_window_title(cx);
 600    //                     this.serialize_workspace(cx);
 601    //                 }
 602
 603    //                 project::Event::DisconnectedFromHost => {
 604    //                     this.update_window_edited(cx);
 605    //                     cx.blur();
 606    //                 }
 607
 608    //                 project::Event::Closed => {
 609    //                     cx.remove_window();
 610    //                 }
 611
 612    //                 project::Event::DeletedEntry(entry_id) => {
 613    //                     for pane in this.panes.iter() {
 614    //                         pane.update(cx, |pane, cx| {
 615    //                             pane.handle_deleted_project_item(*entry_id, cx)
 616    //                         });
 617    //                     }
 618    //                 }
 619
 620    //                 project::Event::Notification(message) => this.show_notification(0, cx, |cx| {
 621    //                     cx.add_view(|_| MessageNotification::new(message.clone()))
 622    //                 }),
 623
 624    //                 _ => {}
 625    //             }
 626    //             cx.notify()
 627    //         })
 628    //         .detach();
 629
 630    //         let weak_handle = cx.weak_handle();
 631    //         let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 632
 633    //         let center_pane = cx.add_view(|cx| {
 634    //             Pane::new(
 635    //                 weak_handle.clone(),
 636    //                 project.clone(),
 637    //                 pane_history_timestamp.clone(),
 638    //                 cx,
 639    //             )
 640    //         });
 641    //         cx.subscribe(&center_pane, Self::handle_pane_event).detach();
 642    //         cx.focus(&center_pane);
 643    //         cx.emit(Event::PaneAdded(center_pane.clone()));
 644
 645    //         app_state.workspace_store.update(cx, |store, _| {
 646    //             store.workspaces.insert(weak_handle.clone());
 647    //         });
 648
 649    //         let mut current_user = app_state.user_store.read(cx).watch_current_user();
 650    //         let mut connection_status = app_state.client.status();
 651    //         let _observe_current_user = cx.spawn(|this, mut cx| async move {
 652    //             current_user.recv().await;
 653    //             connection_status.recv().await;
 654    //             let mut stream =
 655    //                 Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 656
 657    //             while stream.recv().await.is_some() {
 658    //                 this.update(&mut cx, |_, cx| cx.notify())?;
 659    //             }
 660    //             anyhow::Ok(())
 661    //         });
 662
 663    //         // All leader updates are enqueued and then processed in a single task, so
 664    //         // that each asynchronous operation can be run in order.
 665    //         let (leader_updates_tx, mut leader_updates_rx) =
 666    //             mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 667    //         let _apply_leader_updates = cx.spawn(|this, mut cx| async move {
 668    //             while let Some((leader_id, update)) = leader_updates_rx.next().await {
 669    //                 Self::process_leader_update(&this, leader_id, update, &mut cx)
 670    //                     .await
 671    //                     .log_err();
 672    //             }
 673
 674    //             Ok(())
 675    //         });
 676
 677    //         cx.emit_global(WorkspaceCreated(weak_handle.clone()));
 678
 679    //         let left_dock = cx.add_view(|_| Dock::new(DockPosition::Left));
 680    //         let bottom_dock = cx.add_view(|_| Dock::new(DockPosition::Bottom));
 681    //         let right_dock = cx.add_view(|_| Dock::new(DockPosition::Right));
 682    //         let left_dock_buttons =
 683    //             cx.add_view(|cx| PanelButtons::new(left_dock.clone(), weak_handle.clone(), cx));
 684    //         let bottom_dock_buttons =
 685    //             cx.add_view(|cx| PanelButtons::new(bottom_dock.clone(), weak_handle.clone(), cx));
 686    //         let right_dock_buttons =
 687    //             cx.add_view(|cx| PanelButtons::new(right_dock.clone(), weak_handle.clone(), cx));
 688    //         let status_bar = cx.add_view(|cx| {
 689    //             let mut status_bar = StatusBar::new(&center_pane.clone(), cx);
 690    //             status_bar.add_left_item(left_dock_buttons, cx);
 691    //             status_bar.add_right_item(right_dock_buttons, cx);
 692    //             status_bar.add_right_item(bottom_dock_buttons, cx);
 693    //             status_bar
 694    //         });
 695
 696    //         cx.update_default_global::<DragAndDrop<Workspace>, _, _>(|drag_and_drop, _| {
 697    //             drag_and_drop.register_container(weak_handle.clone());
 698    //         });
 699
 700    //         let mut active_call = None;
 701    //         if cx.has_global::<ModelHandle<ActiveCall>>() {
 702    //             let call = cx.global::<ModelHandle<ActiveCall>>().clone();
 703    //             let mut subscriptions = Vec::new();
 704    //             subscriptions.push(cx.subscribe(&call, Self::on_active_call_event));
 705    //             active_call = Some((call, subscriptions));
 706    //         }
 707
 708    //         let subscriptions = vec![
 709    //             cx.observe_fullscreen(|_, _, cx| cx.notify()),
 710    //             cx.observe_window_activation(Self::on_window_activation_changed),
 711    //             cx.observe_window_bounds(move |_, mut bounds, display, cx| {
 712    //                 // Transform fixed bounds to be stored in terms of the containing display
 713    //                 if let WindowBounds::Fixed(mut window_bounds) = bounds {
 714    //                     if let Some(screen) = cx.platform().screen_by_id(display) {
 715    //                         let screen_bounds = screen.bounds();
 716    //                         window_bounds
 717    //                             .set_origin_x(window_bounds.origin_x() - screen_bounds.origin_x());
 718    //                         window_bounds
 719    //                             .set_origin_y(window_bounds.origin_y() - screen_bounds.origin_y());
 720    //                         bounds = WindowBounds::Fixed(window_bounds);
 721    //                     }
 722    //                 }
 723
 724    //                 cx.background()
 725    //                     .spawn(DB.set_window_bounds(workspace_id, bounds, display))
 726    //                     .detach_and_log_err(cx);
 727    //             }),
 728    //             cx.observe(&left_dock, |this, _, cx| {
 729    //                 this.serialize_workspace(cx);
 730    //                 cx.notify();
 731    //             }),
 732    //             cx.observe(&bottom_dock, |this, _, cx| {
 733    //                 this.serialize_workspace(cx);
 734    //                 cx.notify();
 735    //             }),
 736    //             cx.observe(&right_dock, |this, _, cx| {
 737    //                 this.serialize_workspace(cx);
 738    //                 cx.notify();
 739    //             }),
 740    //         ];
 741
 742    //         cx.defer(|this, cx| this.update_window_title(cx));
 743    //         Workspace {
 744    //             weak_self: weak_handle.clone(),
 745    //             modal: None,
 746    //             zoomed: None,
 747    //             zoomed_position: None,
 748    //             center: PaneGroup::new(center_pane.clone()),
 749    //             panes: vec![center_pane.clone()],
 750    //             panes_by_item: Default::default(),
 751    //             active_pane: center_pane.clone(),
 752    //             last_active_center_pane: Some(center_pane.downgrade()),
 753    //             last_active_view_id: None,
 754    //             status_bar,
 755    //             titlebar_item: None,
 756    //             notifications: Default::default(),
 757    //             left_dock,
 758    //             bottom_dock,
 759    //             right_dock,
 760    //             project: project.clone(),
 761    //             follower_states: Default::default(),
 762    //             last_leaders_by_pane: Default::default(),
 763    //             window_edited: false,
 764    //             active_call,
 765    //             database_id: workspace_id,
 766    //             app_state,
 767    //             _observe_current_user,
 768    //             _apply_leader_updates,
 769    //             _schedule_serialize: None,
 770    //             leader_updates_tx,
 771    //             subscriptions,
 772    //             pane_history_timestamp,
 773    //         }
 774    //     }
 775
 776    // fn new_local(
 777    //     abs_paths: Vec<PathBuf>,
 778    //     app_state: Arc<AppState>,
 779    //     requesting_window: Option<WindowHandle<Workspace>>,
 780    //     cx: &mut AppContext,
 781    // ) -> Task<(
 782    //     WeakView<Workspace>,
 783    //     Vec<Option<Result<Box<dyn ItemHandle>, anyhow::Error>>>,
 784    // )> {
 785    //     let project_handle = Project::local(
 786    //         app_state.client.clone(),
 787    //         app_state.node_runtime.clone(),
 788    //         app_state.user_store.clone(),
 789    //         app_state.languages.clone(),
 790    //         app_state.fs.clone(),
 791    //         cx,
 792    //     );
 793
 794    //     cx.spawn(|mut cx| async move {
 795    //         let serialized_workspace = persistence::DB.workspace_for_roots(&abs_paths.as_slice());
 796
 797    //         let paths_to_open = Arc::new(abs_paths);
 798
 799    //         // Get project paths for all of the abs_paths
 800    //         let mut worktree_roots: HashSet<Arc<Path>> = Default::default();
 801    //         let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 802    //             Vec::with_capacity(paths_to_open.len());
 803    //         for path in paths_to_open.iter().cloned() {
 804    //             if let Some((worktree, project_entry)) = cx
 805    //                 .update(|cx| {
 806    //                     Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 807    //                 })
 808    //                 .await
 809    //                 .log_err()
 810    //             {
 811    //                 worktree_roots.insert(worktree.read_with(&mut cx, |tree, _| tree.abs_path()));
 812    //                 project_paths.push((path, Some(project_entry)));
 813    //             } else {
 814    //                 project_paths.push((path, None));
 815    //             }
 816    //         }
 817
 818    //             let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 819    //                 serialized_workspace.id
 820    //             } else {
 821    //                 DB.next_id().await.unwrap_or(0)
 822    //             };
 823
 824    //             let window = if let Some(window) = requesting_window {
 825    //                 window.replace_root(&mut cx, |cx| {
 826    //                     Workspace::new(workspace_id, project_handle.clone(), app_state.clone(), cx)
 827    //                 });
 828    //                 window
 829    //             } else {
 830    //                 {
 831    //                     let window_bounds_override = window_bounds_env_override(&cx);
 832    //                     let (bounds, display) = if let Some(bounds) = window_bounds_override {
 833    //                         (Some(bounds), None)
 834    //                     } else {
 835    //                         serialized_workspace
 836    //                             .as_ref()
 837    //                             .and_then(|serialized_workspace| {
 838    //                                 let display = serialized_workspace.display?;
 839    //                                 let mut bounds = serialized_workspace.bounds?;
 840
 841    //                                 // Stored bounds are relative to the containing display.
 842    //                                 // So convert back to global coordinates if that screen still exists
 843    //                                 if let WindowBounds::Fixed(mut window_bounds) = bounds {
 844    //                                     if let Some(screen) = cx.platform().screen_by_id(display) {
 845    //                                         let screen_bounds = screen.bounds();
 846    //                                         window_bounds.set_origin_x(
 847    //                                             window_bounds.origin_x() + screen_bounds.origin_x(),
 848    //                                         );
 849    //                                         window_bounds.set_origin_y(
 850    //                                             window_bounds.origin_y() + screen_bounds.origin_y(),
 851    //                                         );
 852    //                                         bounds = WindowBounds::Fixed(window_bounds);
 853    //                                     } else {
 854    //                                         // Screen no longer exists. Return none here.
 855    //                                         return None;
 856    //                                     }
 857    //                                 }
 858
 859    //                                 Some((bounds, display))
 860    //                             })
 861    //                             .unzip()
 862    //                     };
 863
 864    //                     // Use the serialized workspace to construct the new window
 865    //                     cx.add_window(
 866    //                         (app_state.build_window_options)(bounds, display, cx.platform().as_ref()),
 867    //                         |cx| {
 868    //                             Workspace::new(
 869    //                                 workspace_id,
 870    //                                 project_handle.clone(),
 871    //                                 app_state.clone(),
 872    //                                 cx,
 873    //                             )
 874    //                         },
 875    //                     )
 876    //                 }
 877    //             };
 878
 879    //             // We haven't yielded the main thread since obtaining the window handle,
 880    //             // so the window exists.
 881    //             let workspace = window.root(&cx).unwrap();
 882
 883    //             (app_state.initialize_workspace)(
 884    //                 workspace.downgrade(),
 885    //                 serialized_workspace.is_some(),
 886    //                 app_state.clone(),
 887    //                 cx.clone(),
 888    //             )
 889    //             .await
 890    //             .log_err();
 891
 892    //             window.update(&mut cx, |cx| cx.activate_window());
 893
 894    //             let workspace = workspace.downgrade();
 895    //             notify_if_database_failed(&workspace, &mut cx);
 896    //             let opened_items = open_items(
 897    //                 serialized_workspace,
 898    //                 &workspace,
 899    //                 project_paths,
 900    //                 app_state,
 901    //                 cx,
 902    //             )
 903    //             .await
 904    //             .unwrap_or_default();
 905
 906    //             (workspace, opened_items)
 907    //         })
 908    //     }
 909
 910    pub fn weak_handle(&self) -> WeakView<Self> {
 911        self.weak_self.clone()
 912    }
 913
 914    // pub fn left_dock(&self) -> &View<Dock> {
 915    //     &self.left_dock
 916    // }
 917
 918    // pub fn bottom_dock(&self) -> &View<Dock> {
 919    //     &self.bottom_dock
 920    // }
 921
 922    // pub fn right_dock(&self) -> &View<Dock> {
 923    //     &self.right_dock
 924    // }
 925
 926    //     pub fn add_panel<T: Panel>(&mut self, panel: View<T>, cx: &mut ViewContext<Self>)
 927    //     where
 928    //         T::Event: std::fmt::Debug,
 929    //     {
 930    //         self.add_panel_with_extra_event_handler(panel, cx, |_, _, _, _| {})
 931    //     }
 932
 933    //     pub fn add_panel_with_extra_event_handler<T: Panel, F>(
 934    //         &mut self,
 935    //         panel: View<T>,
 936    //         cx: &mut ViewContext<Self>,
 937    //         handler: F,
 938    //     ) where
 939    //         T::Event: std::fmt::Debug,
 940    //         F: Fn(&mut Self, &View<T>, &T::Event, &mut ViewContext<Self>) + 'static,
 941    //     {
 942    //         let dock = match panel.position(cx) {
 943    //             DockPosition::Left => &self.left_dock,
 944    //             DockPosition::Bottom => &self.bottom_dock,
 945    //             DockPosition::Right => &self.right_dock,
 946    //         };
 947
 948    //         self.subscriptions.push(cx.subscribe(&panel, {
 949    //             let mut dock = dock.clone();
 950    //             let mut prev_position = panel.position(cx);
 951    //             move |this, panel, event, cx| {
 952    //                 if T::should_change_position_on_event(event) {
 953    //                     let new_position = panel.read(cx).position(cx);
 954    //                     let mut was_visible = false;
 955    //                     dock.update(cx, |dock, cx| {
 956    //                         prev_position = new_position;
 957
 958    //                         was_visible = dock.is_open()
 959    //                             && dock
 960    //                                 .visible_panel()
 961    //                                 .map_or(false, |active_panel| active_panel.id() == panel.id());
 962    //                         dock.remove_panel(&panel, cx);
 963    //                     });
 964
 965    //                     if panel.is_zoomed(cx) {
 966    //                         this.zoomed_position = Some(new_position);
 967    //                     }
 968
 969    //                     dock = match panel.read(cx).position(cx) {
 970    //                         DockPosition::Left => &this.left_dock,
 971    //                         DockPosition::Bottom => &this.bottom_dock,
 972    //                         DockPosition::Right => &this.right_dock,
 973    //                     }
 974    //                     .clone();
 975    //                     dock.update(cx, |dock, cx| {
 976    //                         dock.add_panel(panel.clone(), cx);
 977    //                         if was_visible {
 978    //                             dock.set_open(true, cx);
 979    //                             dock.activate_panel(dock.panels_len() - 1, cx);
 980    //                         }
 981    //                     });
 982    //                 } else if T::should_zoom_in_on_event(event) {
 983    //                     dock.update(cx, |dock, cx| dock.set_panel_zoomed(&panel, true, cx));
 984    //                     if !panel.has_focus(cx) {
 985    //                         cx.focus(&panel);
 986    //                     }
 987    //                     this.zoomed = Some(panel.downgrade().into_any());
 988    //                     this.zoomed_position = Some(panel.read(cx).position(cx));
 989    //                 } else if T::should_zoom_out_on_event(event) {
 990    //                     dock.update(cx, |dock, cx| dock.set_panel_zoomed(&panel, false, cx));
 991    //                     if this.zoomed_position == Some(prev_position) {
 992    //                         this.zoomed = None;
 993    //                         this.zoomed_position = None;
 994    //                     }
 995    //                     cx.notify();
 996    //                 } else if T::is_focus_event(event) {
 997    //                     let position = panel.read(cx).position(cx);
 998    //                     this.dismiss_zoomed_items_to_reveal(Some(position), cx);
 999    //                     if panel.is_zoomed(cx) {
1000    //                         this.zoomed = Some(panel.downgrade().into_any());
1001    //                         this.zoomed_position = Some(position);
1002    //                     } else {
1003    //                         this.zoomed = None;
1004    //                         this.zoomed_position = None;
1005    //                     }
1006    //                     this.update_active_view_for_followers(cx);
1007    //                     cx.notify();
1008    //                 } else {
1009    //                     handler(this, &panel, event, cx)
1010    //                 }
1011    //             }
1012    //         }));
1013
1014    //         dock.update(cx, |dock, cx| dock.add_panel(panel, cx));
1015    //     }
1016
1017    //     pub fn status_bar(&self) -> &View<StatusBar> {
1018    //         &self.status_bar
1019    //     }
1020
1021    pub fn app_state(&self) -> &Arc<AppState> {
1022        &self.app_state
1023    }
1024
1025    pub fn user_store(&self) -> &Model<UserStore> {
1026        &self.app_state.user_store
1027    }
1028
1029    pub fn project(&self) -> &Model<Project> {
1030        &self.project
1031    }
1032
1033    //     pub fn recent_navigation_history(
1034    //         &self,
1035    //         limit: Option<usize>,
1036    //         cx: &AppContext,
1037    //     ) -> Vec<(ProjectPath, Option<PathBuf>)> {
1038    //         let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
1039    //         let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
1040    //         for pane in &self.panes {
1041    //             let pane = pane.read(cx);
1042    //             pane.nav_history()
1043    //                 .for_each_entry(cx, |entry, (project_path, fs_path)| {
1044    //                     if let Some(fs_path) = &fs_path {
1045    //                         abs_paths_opened
1046    //                             .entry(fs_path.clone())
1047    //                             .or_default()
1048    //                             .insert(project_path.clone());
1049    //                     }
1050    //                     let timestamp = entry.timestamp;
1051    //                     match history.entry(project_path) {
1052    //                         hash_map::Entry::Occupied(mut entry) => {
1053    //                             let (_, old_timestamp) = entry.get();
1054    //                             if &timestamp > old_timestamp {
1055    //                                 entry.insert((fs_path, timestamp));
1056    //                             }
1057    //                         }
1058    //                         hash_map::Entry::Vacant(entry) => {
1059    //                             entry.insert((fs_path, timestamp));
1060    //                         }
1061    //                     }
1062    //                 });
1063    //         }
1064
1065    //         history
1066    //             .into_iter()
1067    //             .sorted_by_key(|(_, (_, timestamp))| *timestamp)
1068    //             .map(|(project_path, (fs_path, _))| (project_path, fs_path))
1069    //             .rev()
1070    //             .filter(|(history_path, abs_path)| {
1071    //                 let latest_project_path_opened = abs_path
1072    //                     .as_ref()
1073    //                     .and_then(|abs_path| abs_paths_opened.get(abs_path))
1074    //                     .and_then(|project_paths| {
1075    //                         project_paths
1076    //                             .iter()
1077    //                             .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
1078    //                     });
1079
1080    //                 match latest_project_path_opened {
1081    //                     Some(latest_project_path_opened) => latest_project_path_opened == history_path,
1082    //                     None => true,
1083    //                 }
1084    //             })
1085    //             .take(limit.unwrap_or(usize::MAX))
1086    //             .collect()
1087    //     }
1088
1089    //     fn navigate_history(
1090    //         &mut self,
1091    //         pane: WeakView<Pane>,
1092    //         mode: NavigationMode,
1093    //         cx: &mut ViewContext<Workspace>,
1094    //     ) -> Task<Result<()>> {
1095    //         let to_load = if let Some(pane) = pane.upgrade(cx) {
1096    //             cx.focus(&pane);
1097
1098    //             pane.update(cx, |pane, cx| {
1099    //                 loop {
1100    //                     // Retrieve the weak item handle from the history.
1101    //                     let entry = pane.nav_history_mut().pop(mode, cx)?;
1102
1103    //                     // If the item is still present in this pane, then activate it.
1104    //                     if let Some(index) = entry
1105    //                         .item
1106    //                         .upgrade(cx)
1107    //                         .and_then(|v| pane.index_for_item(v.as_ref()))
1108    //                     {
1109    //                         let prev_active_item_index = pane.active_item_index();
1110    //                         pane.nav_history_mut().set_mode(mode);
1111    //                         pane.activate_item(index, true, true, cx);
1112    //                         pane.nav_history_mut().set_mode(NavigationMode::Normal);
1113
1114    //                         let mut navigated = prev_active_item_index != pane.active_item_index();
1115    //                         if let Some(data) = entry.data {
1116    //                             navigated |= pane.active_item()?.navigate(data, cx);
1117    //                         }
1118
1119    //                         if navigated {
1120    //                             break None;
1121    //                         }
1122    //                     }
1123    //                     // If the item is no longer present in this pane, then retrieve its
1124    //                     // project path in order to reopen it.
1125    //                     else {
1126    //                         break pane
1127    //                             .nav_history()
1128    //                             .path_for_item(entry.item.id())
1129    //                             .map(|(project_path, _)| (project_path, entry));
1130    //                     }
1131    //                 }
1132    //             })
1133    //         } else {
1134    //             None
1135    //         };
1136
1137    //         if let Some((project_path, entry)) = to_load {
1138    //             // If the item was no longer present, then load it again from its previous path.
1139    //             let task = self.load_path(project_path, cx);
1140    //             cx.spawn(|workspace, mut cx| async move {
1141    //                 let task = task.await;
1142    //                 let mut navigated = false;
1143    //                 if let Some((project_entry_id, build_item)) = task.log_err() {
1144    //                     let prev_active_item_id = pane.update(&mut cx, |pane, _| {
1145    //                         pane.nav_history_mut().set_mode(mode);
1146    //                         pane.active_item().map(|p| p.id())
1147    //                     })?;
1148
1149    //                     pane.update(&mut cx, |pane, cx| {
1150    //                         let item = pane.open_item(project_entry_id, true, cx, build_item);
1151    //                         navigated |= Some(item.id()) != prev_active_item_id;
1152    //                         pane.nav_history_mut().set_mode(NavigationMode::Normal);
1153    //                         if let Some(data) = entry.data {
1154    //                             navigated |= item.navigate(data, cx);
1155    //                         }
1156    //                     })?;
1157    //                 }
1158
1159    //                 if !navigated {
1160    //                     workspace
1161    //                         .update(&mut cx, |workspace, cx| {
1162    //                             Self::navigate_history(workspace, pane, mode, cx)
1163    //                         })?
1164    //                         .await?;
1165    //                 }
1166
1167    //                 Ok(())
1168    //             })
1169    //         } else {
1170    //             Task::ready(Ok(()))
1171    //         }
1172    //     }
1173
1174    //     pub fn go_back(
1175    //         &mut self,
1176    //         pane: WeakView<Pane>,
1177    //         cx: &mut ViewContext<Workspace>,
1178    //     ) -> Task<Result<()>> {
1179    //         self.navigate_history(pane, NavigationMode::GoingBack, cx)
1180    //     }
1181
1182    //     pub fn go_forward(
1183    //         &mut self,
1184    //         pane: WeakView<Pane>,
1185    //         cx: &mut ViewContext<Workspace>,
1186    //     ) -> Task<Result<()>> {
1187    //         self.navigate_history(pane, NavigationMode::GoingForward, cx)
1188    //     }
1189
1190    //     pub fn reopen_closed_item(&mut self, cx: &mut ViewContext<Workspace>) -> Task<Result<()>> {
1191    //         self.navigate_history(
1192    //             self.active_pane().downgrade(),
1193    //             NavigationMode::ReopeningClosedItem,
1194    //             cx,
1195    //         )
1196    //     }
1197
1198    //     pub fn client(&self) -> &Client {
1199    //         &self.app_state.client
1200    //     }
1201
1202    //     pub fn set_titlebar_item(&mut self, item: AnyViewHandle, cx: &mut ViewContext<Self>) {
1203    //         self.titlebar_item = Some(item);
1204    //         cx.notify();
1205    //     }
1206
1207    //     pub fn titlebar_item(&self) -> Option<AnyViewHandle> {
1208    //         self.titlebar_item.clone()
1209    //     }
1210
1211    //     /// Call the given callback with a workspace whose project is local.
1212    //     ///
1213    //     /// If the given workspace has a local project, then it will be passed
1214    //     /// to the callback. Otherwise, a new empty window will be created.
1215    //     pub fn with_local_workspace<T, F>(
1216    //         &mut self,
1217    //         cx: &mut ViewContext<Self>,
1218    //         callback: F,
1219    //     ) -> Task<Result<T>>
1220    //     where
1221    //         T: 'static,
1222    //         F: 'static + FnOnce(&mut Workspace, &mut ViewContext<Workspace>) -> T,
1223    //     {
1224    //         if self.project.read(cx).is_local() {
1225    //             Task::Ready(Some(Ok(callback(self, cx))))
1226    //         } else {
1227    //             let task = Self::new_local(Vec::new(), self.app_state.clone(), None, cx);
1228    //             cx.spawn(|_vh, mut cx| async move {
1229    //                 let (workspace, _) = task.await;
1230    //                 workspace.update(&mut cx, callback)
1231    //             })
1232    //         }
1233    //     }
1234
1235    //     pub fn worktrees<'a>(
1236    //         &self,
1237    //         cx: &'a AppContext,
1238    //     ) -> impl 'a + Iterator<Item = ModelHandle<Worktree>> {
1239    //         self.project.read(cx).worktrees(cx)
1240    //     }
1241
1242    //     pub fn visible_worktrees<'a>(
1243    //         &self,
1244    //         cx: &'a AppContext,
1245    //     ) -> impl 'a + Iterator<Item = ModelHandle<Worktree>> {
1246    //         self.project.read(cx).visible_worktrees(cx)
1247    //     }
1248
1249    //     pub fn worktree_scans_complete(&self, cx: &AppContext) -> impl Future<Output = ()> + 'static {
1250    //         let futures = self
1251    //             .worktrees(cx)
1252    //             .filter_map(|worktree| worktree.read(cx).as_local())
1253    //             .map(|worktree| worktree.scan_complete())
1254    //             .collect::<Vec<_>>();
1255    //         async move {
1256    //             for future in futures {
1257    //                 future.await;
1258    //             }
1259    //         }
1260    //     }
1261
1262    //     pub fn close_global(_: &CloseWindow, cx: &mut AppContext) {
1263    //         cx.spawn(|mut cx| async move {
1264    //             let window = cx
1265    //                 .windows()
1266    //                 .into_iter()
1267    //                 .find(|window| window.is_active(&cx).unwrap_or(false));
1268    //             if let Some(window) = window {
1269    //                 //This can only get called when the window's project connection has been lost
1270    //                 //so we don't need to prompt the user for anything and instead just close the window
1271    //                 window.remove(&mut cx);
1272    //             }
1273    //         })
1274    //         .detach();
1275    //     }
1276
1277    //     pub fn close(
1278    //         &mut self,
1279    //         _: &CloseWindow,
1280    //         cx: &mut ViewContext<Self>,
1281    //     ) -> Option<Task<Result<()>>> {
1282    //         let window = cx.window();
1283    //         let prepare = self.prepare_to_close(false, cx);
1284    //         Some(cx.spawn(|_, mut cx| async move {
1285    //             if prepare.await? {
1286    //                 window.remove(&mut cx);
1287    //             }
1288    //             Ok(())
1289    //         }))
1290    //     }
1291
1292    //     pub fn prepare_to_close(
1293    //         &mut self,
1294    //         quitting: bool,
1295    //         cx: &mut ViewContext<Self>,
1296    //     ) -> Task<Result<bool>> {
1297    //         let active_call = self.active_call().cloned();
1298    //         let window = cx.window();
1299
1300    //         cx.spawn(|this, mut cx| async move {
1301    //             let workspace_count = cx
1302    //                 .windows()
1303    //                 .into_iter()
1304    //                 .filter(|window| window.root_is::<Workspace>())
1305    //                 .count();
1306
1307    //             if let Some(active_call) = active_call {
1308    //                 if !quitting
1309    //                     && workspace_count == 1
1310    //                     && active_call.read_with(&cx, |call, _| call.room().is_some())
1311    //                 {
1312    //                     let answer = window.prompt(
1313    //                         PromptLevel::Warning,
1314    //                         "Do you want to leave the current call?",
1315    //                         &["Close window and hang up", "Cancel"],
1316    //                         &mut cx,
1317    //                     );
1318
1319    //                     if let Some(mut answer) = answer {
1320    //                         if answer.next().await == Some(1) {
1321    //                             return anyhow::Ok(false);
1322    //                         } else {
1323    //                             active_call
1324    //                                 .update(&mut cx, |call, cx| call.hang_up(cx))
1325    //                                 .await
1326    //                                 .log_err();
1327    //                         }
1328    //                     }
1329    //                 }
1330    //             }
1331
1332    //             Ok(this
1333    //                 .update(&mut cx, |this, cx| {
1334    //                     this.save_all_internal(SaveIntent::Close, cx)
1335    //                 })?
1336    //                 .await?)
1337    //         })
1338    //     }
1339
1340    //     fn save_all(
1341    //         &mut self,
1342    //         action: &SaveAll,
1343    //         cx: &mut ViewContext<Self>,
1344    //     ) -> Option<Task<Result<()>>> {
1345    //         let save_all =
1346    //             self.save_all_internal(action.save_intent.unwrap_or(SaveIntent::SaveAll), cx);
1347    //         Some(cx.foreground().spawn(async move {
1348    //             save_all.await?;
1349    //             Ok(())
1350    //         }))
1351    //     }
1352
1353    //     fn save_all_internal(
1354    //         &mut self,
1355    //         mut save_intent: SaveIntent,
1356    //         cx: &mut ViewContext<Self>,
1357    //     ) -> Task<Result<bool>> {
1358    //         if self.project.read(cx).is_read_only() {
1359    //             return Task::ready(Ok(true));
1360    //         }
1361    //         let dirty_items = self
1362    //             .panes
1363    //             .iter()
1364    //             .flat_map(|pane| {
1365    //                 pane.read(cx).items().filter_map(|item| {
1366    //                     if item.is_dirty(cx) {
1367    //                         Some((pane.downgrade(), item.boxed_clone()))
1368    //                     } else {
1369    //                         None
1370    //                     }
1371    //                 })
1372    //             })
1373    //             .collect::<Vec<_>>();
1374
1375    //         let project = self.project.clone();
1376    //         cx.spawn(|workspace, mut cx| async move {
1377    //             // Override save mode and display "Save all files" prompt
1378    //             if save_intent == SaveIntent::Close && dirty_items.len() > 1 {
1379    //                 let mut answer = workspace.update(&mut cx, |_, cx| {
1380    //                     let prompt = Pane::file_names_for_prompt(
1381    //                         &mut dirty_items.iter().map(|(_, handle)| handle),
1382    //                         dirty_items.len(),
1383    //                         cx,
1384    //                     );
1385    //                     cx.prompt(
1386    //                         PromptLevel::Warning,
1387    //                         &prompt,
1388    //                         &["Save all", "Discard all", "Cancel"],
1389    //                     )
1390    //                 })?;
1391    //                 match answer.next().await {
1392    //                     Some(0) => save_intent = SaveIntent::SaveAll,
1393    //                     Some(1) => save_intent = SaveIntent::Skip,
1394    //                     _ => {}
1395    //                 }
1396    //             }
1397    //             for (pane, item) in dirty_items {
1398    //                 let (singleton, project_entry_ids) =
1399    //                     cx.read(|cx| (item.is_singleton(cx), item.project_entry_ids(cx)));
1400    //                 if singleton || !project_entry_ids.is_empty() {
1401    //                     if let Some(ix) =
1402    //                         pane.read_with(&cx, |pane, _| pane.index_for_item(item.as_ref()))?
1403    //                     {
1404    //                         if !Pane::save_item(
1405    //                             project.clone(),
1406    //                             &pane,
1407    //                             ix,
1408    //                             &*item,
1409    //                             save_intent,
1410    //                             &mut cx,
1411    //                         )
1412    //                         .await?
1413    //                         {
1414    //                             return Ok(false);
1415    //                         }
1416    //                     }
1417    //                 }
1418    //             }
1419    //             Ok(true)
1420    //         })
1421    //     }
1422
1423    //     pub fn open(&mut self, _: &Open, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
1424    //         let mut paths = cx.prompt_for_paths(PathPromptOptions {
1425    //             files: true,
1426    //             directories: true,
1427    //             multiple: true,
1428    //         });
1429
1430    //         Some(cx.spawn(|this, mut cx| async move {
1431    //             if let Some(paths) = paths.recv().await.flatten() {
1432    //                 if let Some(task) = this
1433    //                     .update(&mut cx, |this, cx| this.open_workspace_for_paths(paths, cx))
1434    //                     .log_err()
1435    //                 {
1436    //                     task.await?
1437    //                 }
1438    //             }
1439    //             Ok(())
1440    //         }))
1441    //     }
1442
1443    //     pub fn open_workspace_for_paths(
1444    //         &mut self,
1445    //         paths: Vec<PathBuf>,
1446    //         cx: &mut ViewContext<Self>,
1447    //     ) -> Task<Result<()>> {
1448    //         let window = cx.window().downcast::<Self>();
1449    //         let is_remote = self.project.read(cx).is_remote();
1450    //         let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
1451    //         let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
1452    //         let close_task = if is_remote || has_worktree || has_dirty_items {
1453    //             None
1454    //         } else {
1455    //             Some(self.prepare_to_close(false, cx))
1456    //         };
1457    //         let app_state = self.app_state.clone();
1458
1459    //         cx.spawn(|_, mut cx| async move {
1460    //             let window_to_replace = if let Some(close_task) = close_task {
1461    //                 if !close_task.await? {
1462    //                     return Ok(());
1463    //                 }
1464    //                 window
1465    //             } else {
1466    //                 None
1467    //             };
1468    //             cx.update(|cx| open_paths(&paths, &app_state, window_to_replace, cx))
1469    //                 .await?;
1470    //             Ok(())
1471    //         })
1472    //     }
1473
1474    #[allow(clippy::type_complexity)]
1475    pub fn open_paths(
1476        &mut self,
1477        mut abs_paths: Vec<PathBuf>,
1478        visible: bool,
1479        cx: &mut ViewContext<Self>,
1480    ) -> Task<Vec<Option<Result<Box<dyn ItemHandle>, anyhow::Error>>>> {
1481        log::info!("open paths {abs_paths:?}");
1482
1483        let fs = self.app_state.fs.clone();
1484
1485        // Sort the paths to ensure we add worktrees for parents before their children.
1486        abs_paths.sort_unstable();
1487        cx.spawn(move |this, mut cx| async move {
1488            let mut tasks = Vec::with_capacity(abs_paths.len());
1489            for abs_path in &abs_paths {
1490                let project_path = match this
1491                    .update(&mut cx, |this, cx| {
1492                        Workspace::project_path_for_path(
1493                            this.project.clone(),
1494                            abs_path,
1495                            visible,
1496                            cx,
1497                        )
1498                    })
1499                    .log_err()
1500                {
1501                    Some(project_path) => project_path.await.log_err(),
1502                    None => None,
1503                };
1504
1505                let this = this.clone();
1506                let abs_path = abs_path.clone();
1507                let fs = fs.clone();
1508                let task = cx.spawn(move |mut cx| async move {
1509                    let (worktree, project_path) = project_path?;
1510                    if fs.is_file(&abs_path).await {
1511                        Some(
1512                            this.update(&mut cx, |this, cx| {
1513                                this.open_path(project_path, None, true, cx)
1514                            })
1515                            .log_err()?
1516                            .await,
1517                        )
1518                    } else {
1519                        this.update(&mut cx, |workspace, cx| {
1520                            let worktree = worktree.read(cx);
1521                            let worktree_abs_path = worktree.abs_path();
1522                            let entry_id = if abs_path == worktree_abs_path.as_ref() {
1523                                worktree.root_entry()
1524                            } else {
1525                                abs_path
1526                                    .strip_prefix(worktree_abs_path.as_ref())
1527                                    .ok()
1528                                    .and_then(|relative_path| {
1529                                        worktree.entry_for_path(relative_path)
1530                                    })
1531                            }
1532                            .map(|entry| entry.id);
1533                            if let Some(entry_id) = entry_id {
1534                                workspace.project.update(cx, |_, cx| {
1535                                    cx.emit(project2::Event::ActiveEntryChanged(Some(entry_id)));
1536                                })
1537                            }
1538                        })
1539                        .log_err()?;
1540                        None
1541                    }
1542                });
1543                tasks.push(task);
1544            }
1545
1546            futures::future::join_all(tasks).await
1547        })
1548    }
1549
1550    //     fn add_folder_to_project(&mut self, _: &AddFolderToProject, cx: &mut ViewContext<Self>) {
1551    //         let mut paths = cx.prompt_for_paths(PathPromptOptions {
1552    //             files: false,
1553    //             directories: true,
1554    //             multiple: true,
1555    //         });
1556    //         cx.spawn(|this, mut cx| async move {
1557    //             if let Some(paths) = paths.recv().await.flatten() {
1558    //                 let results = this
1559    //                     .update(&mut cx, |this, cx| this.open_paths(paths, true, cx))?
1560    //                     .await;
1561    //                 for result in results.into_iter().flatten() {
1562    //                     result.log_err();
1563    //                 }
1564    //             }
1565    //             anyhow::Ok(())
1566    //         })
1567    //         .detach_and_log_err(cx);
1568    //     }
1569
1570    fn project_path_for_path(
1571        project: Model<Project>,
1572        abs_path: &Path,
1573        visible: bool,
1574        cx: &mut AppContext,
1575    ) -> Task<Result<(Model<Worktree>, ProjectPath)>> {
1576        let entry = project.update(cx, |project, cx| {
1577            project.find_or_create_local_worktree(abs_path, visible, cx)
1578        });
1579        cx.spawn(|mut cx| async move {
1580            let (worktree, path) = entry.await?;
1581            let worktree_id = worktree.update(&mut cx, |t, _| t.id())?;
1582            Ok((
1583                worktree,
1584                ProjectPath {
1585                    worktree_id,
1586                    path: path.into(),
1587                },
1588            ))
1589        })
1590    }
1591
1592    //     /// Returns the modal that was toggled closed if it was open.
1593    //     pub fn toggle_modal<V, F>(
1594    //         &mut self,
1595    //         cx: &mut ViewContext<Self>,
1596    //         add_view: F,
1597    //     ) -> Option<View<V>>
1598    //     where
1599    //         V: 'static + Modal,
1600    //         F: FnOnce(&mut Self, &mut ViewContext<Self>) -> View<V>,
1601    //     {
1602    //         cx.notify();
1603    //         // Whatever modal was visible is getting clobbered. If its the same type as V, then return
1604    //         // it. Otherwise, create a new modal and set it as active.
1605    //         if let Some(already_open_modal) = self
1606    //             .dismiss_modal(cx)
1607    //             .and_then(|modal| modal.downcast::<V>())
1608    //         {
1609    //             cx.focus_self();
1610    //             Some(already_open_modal)
1611    //         } else {
1612    //             let modal = add_view(self, cx);
1613    //             cx.subscribe(&modal, |this, _, event, cx| {
1614    //                 if V::dismiss_on_event(event) {
1615    //                     this.dismiss_modal(cx);
1616    //                 }
1617    //             })
1618    //             .detach();
1619    //             let previously_focused_view_id = cx.focused_view_id();
1620    //             cx.focus(&modal);
1621    //             self.modal = Some(ActiveModal {
1622    //                 view: Box::new(modal),
1623    //                 previously_focused_view_id,
1624    //             });
1625    //             None
1626    //         }
1627    //     }
1628
1629    //     pub fn modal<V: 'static + View>(&self) -> Option<View<V>> {
1630    //         self.modal
1631    //             .as_ref()
1632    //             .and_then(|modal| modal.view.as_any().clone().downcast::<V>())
1633    //     }
1634
1635    //     pub fn dismiss_modal(&mut self, cx: &mut ViewContext<Self>) -> Option<AnyViewHandle> {
1636    //         if let Some(modal) = self.modal.take() {
1637    //             if let Some(previously_focused_view_id) = modal.previously_focused_view_id {
1638    //                 if modal.view.has_focus(cx) {
1639    //                     cx.window_context().focus(Some(previously_focused_view_id));
1640    //                 }
1641    //             }
1642    //             cx.notify();
1643    //             Some(modal.view.as_any().clone())
1644    //         } else {
1645    //             None
1646    //         }
1647    //     }
1648
1649    //     pub fn items<'a>(
1650    //         &'a self,
1651    //         cx: &'a AppContext,
1652    //     ) -> impl 'a + Iterator<Item = &Box<dyn ItemHandle>> {
1653    //         self.panes.iter().flat_map(|pane| pane.read(cx).items())
1654    //     }
1655
1656    //     pub fn item_of_type<T: Item>(&self, cx: &AppContext) -> Option<View<T>> {
1657    //         self.items_of_type(cx).max_by_key(|item| item.id())
1658    //     }
1659
1660    //     pub fn items_of_type<'a, T: Item>(
1661    //         &'a self,
1662    //         cx: &'a AppContext,
1663    //     ) -> impl 'a + Iterator<Item = View<T>> {
1664    //         self.panes
1665    //             .iter()
1666    //             .flat_map(|pane| pane.read(cx).items_of_type())
1667    //     }
1668
1669    //     pub fn active_item(&self, cx: &AppContext) -> Option<Box<dyn ItemHandle>> {
1670    //         self.active_pane().read(cx).active_item()
1671    //     }
1672
1673    //     fn active_project_path(&self, cx: &ViewContext<Self>) -> Option<ProjectPath> {
1674    //         self.active_item(cx).and_then(|item| item.project_path(cx))
1675    //     }
1676
1677    //     pub fn save_active_item(
1678    //         &mut self,
1679    //         save_intent: SaveIntent,
1680    //         cx: &mut ViewContext<Self>,
1681    //     ) -> Task<Result<()>> {
1682    //         let project = self.project.clone();
1683    //         let pane = self.active_pane();
1684    //         let item_ix = pane.read(cx).active_item_index();
1685    //         let item = pane.read(cx).active_item();
1686    //         let pane = pane.downgrade();
1687
1688    //         cx.spawn(|_, mut cx| async move {
1689    //             if let Some(item) = item {
1690    //                 Pane::save_item(project, &pane, item_ix, item.as_ref(), save_intent, &mut cx)
1691    //                     .await
1692    //                     .map(|_| ())
1693    //             } else {
1694    //                 Ok(())
1695    //             }
1696    //         })
1697    //     }
1698
1699    //     pub fn close_inactive_items_and_panes(
1700    //         &mut self,
1701    //         _: &CloseInactiveTabsAndPanes,
1702    //         cx: &mut ViewContext<Self>,
1703    //     ) -> Option<Task<Result<()>>> {
1704    //         self.close_all_internal(true, SaveIntent::Close, cx)
1705    //     }
1706
1707    //     pub fn close_all_items_and_panes(
1708    //         &mut self,
1709    //         action: &CloseAllItemsAndPanes,
1710    //         cx: &mut ViewContext<Self>,
1711    //     ) -> Option<Task<Result<()>>> {
1712    //         self.close_all_internal(false, action.save_intent.unwrap_or(SaveIntent::Close), cx)
1713    //     }
1714
1715    //     fn close_all_internal(
1716    //         &mut self,
1717    //         retain_active_pane: bool,
1718    //         save_intent: SaveIntent,
1719    //         cx: &mut ViewContext<Self>,
1720    //     ) -> Option<Task<Result<()>>> {
1721    //         let current_pane = self.active_pane();
1722
1723    //         let mut tasks = Vec::new();
1724
1725    //         if retain_active_pane {
1726    //             if let Some(current_pane_close) = current_pane.update(cx, |pane, cx| {
1727    //                 pane.close_inactive_items(&CloseInactiveItems, cx)
1728    //             }) {
1729    //                 tasks.push(current_pane_close);
1730    //             };
1731    //         }
1732
1733    //         for pane in self.panes() {
1734    //             if retain_active_pane && pane.id() == current_pane.id() {
1735    //                 continue;
1736    //             }
1737
1738    //             if let Some(close_pane_items) = pane.update(cx, |pane: &mut Pane, cx| {
1739    //                 pane.close_all_items(
1740    //                     &CloseAllItems {
1741    //                         save_intent: Some(save_intent),
1742    //                     },
1743    //                     cx,
1744    //                 )
1745    //             }) {
1746    //                 tasks.push(close_pane_items)
1747    //             }
1748    //         }
1749
1750    //         if tasks.is_empty() {
1751    //             None
1752    //         } else {
1753    //             Some(cx.spawn(|_, _| async move {
1754    //                 for task in tasks {
1755    //                     task.await?
1756    //                 }
1757    //                 Ok(())
1758    //             }))
1759    //         }
1760    //     }
1761
1762    //     pub fn toggle_dock(&mut self, dock_side: DockPosition, cx: &mut ViewContext<Self>) {
1763    //         let dock = match dock_side {
1764    //             DockPosition::Left => &self.left_dock,
1765    //             DockPosition::Bottom => &self.bottom_dock,
1766    //             DockPosition::Right => &self.right_dock,
1767    //         };
1768    //         let mut focus_center = false;
1769    //         let mut reveal_dock = false;
1770    //         dock.update(cx, |dock, cx| {
1771    //             let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
1772    //             let was_visible = dock.is_open() && !other_is_zoomed;
1773    //             dock.set_open(!was_visible, cx);
1774
1775    //             if let Some(active_panel) = dock.active_panel() {
1776    //                 if was_visible {
1777    //                     if active_panel.has_focus(cx) {
1778    //                         focus_center = true;
1779    //                     }
1780    //                 } else {
1781    //                     cx.focus(active_panel.as_any());
1782    //                     reveal_dock = true;
1783    //                 }
1784    //             }
1785    //         });
1786
1787    //         if reveal_dock {
1788    //             self.dismiss_zoomed_items_to_reveal(Some(dock_side), cx);
1789    //         }
1790
1791    //         if focus_center {
1792    //             cx.focus_self();
1793    //         }
1794
1795    //         cx.notify();
1796    //         self.serialize_workspace(cx);
1797    //     }
1798
1799    //     pub fn close_all_docks(&mut self, cx: &mut ViewContext<Self>) {
1800    //         let docks = [&self.left_dock, &self.bottom_dock, &self.right_dock];
1801
1802    //         for dock in docks {
1803    //             dock.update(cx, |dock, cx| {
1804    //                 dock.set_open(false, cx);
1805    //             });
1806    //         }
1807
1808    //         cx.focus_self();
1809    //         cx.notify();
1810    //         self.serialize_workspace(cx);
1811    //     }
1812
1813    //     /// Transfer focus to the panel of the given type.
1814    //     pub fn focus_panel<T: Panel>(&mut self, cx: &mut ViewContext<Self>) -> Option<View<T>> {
1815    //         self.focus_or_unfocus_panel::<T>(cx, |_, _| true)?
1816    //             .as_any()
1817    //             .clone()
1818    //             .downcast()
1819    //     }
1820
1821    //     /// Focus the panel of the given type if it isn't already focused. If it is
1822    //     /// already focused, then transfer focus back to the workspace center.
1823    //     pub fn toggle_panel_focus<T: Panel>(&mut self, cx: &mut ViewContext<Self>) {
1824    //         self.focus_or_unfocus_panel::<T>(cx, |panel, cx| !panel.has_focus(cx));
1825    //     }
1826
1827    //     /// Focus or unfocus the given panel type, depending on the given callback.
1828    //     fn focus_or_unfocus_panel<T: Panel>(
1829    //         &mut self,
1830    //         cx: &mut ViewContext<Self>,
1831    //         should_focus: impl Fn(&dyn PanelHandle, &mut ViewContext<Dock>) -> bool,
1832    //     ) -> Option<Rc<dyn PanelHandle>> {
1833    //         for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
1834    //             if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
1835    //                 let mut focus_center = false;
1836    //                 let mut reveal_dock = false;
1837    //                 let panel = dock.update(cx, |dock, cx| {
1838    //                     dock.activate_panel(panel_index, cx);
1839
1840    //                     let panel = dock.active_panel().cloned();
1841    //                     if let Some(panel) = panel.as_ref() {
1842    //                         if should_focus(&**panel, cx) {
1843    //                             dock.set_open(true, cx);
1844    //                             cx.focus(panel.as_any());
1845    //                             reveal_dock = true;
1846    //                         } else {
1847    //                             // if panel.is_zoomed(cx) {
1848    //                             //     dock.set_open(false, cx);
1849    //                             // }
1850    //                             focus_center = true;
1851    //                         }
1852    //                     }
1853    //                     panel
1854    //                 });
1855
1856    //                 if focus_center {
1857    //                     cx.focus_self();
1858    //                 }
1859
1860    //                 self.serialize_workspace(cx);
1861    //                 cx.notify();
1862    //                 return panel;
1863    //             }
1864    //         }
1865    //         None
1866    //     }
1867
1868    //     pub fn panel<T: Panel>(&self, cx: &WindowContext) -> Option<View<T>> {
1869    //         for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
1870    //             let dock = dock.read(cx);
1871    //             if let Some(panel) = dock.panel::<T>() {
1872    //                 return Some(panel);
1873    //             }
1874    //         }
1875    //         None
1876    //     }
1877
1878    //     fn zoom_out(&mut self, cx: &mut ViewContext<Self>) {
1879    //         for pane in &self.panes {
1880    //             pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
1881    //         }
1882
1883    //         self.left_dock.update(cx, |dock, cx| dock.zoom_out(cx));
1884    //         self.bottom_dock.update(cx, |dock, cx| dock.zoom_out(cx));
1885    //         self.right_dock.update(cx, |dock, cx| dock.zoom_out(cx));
1886    //         self.zoomed = None;
1887    //         self.zoomed_position = None;
1888
1889    //         cx.notify();
1890    //     }
1891
1892    //     #[cfg(any(test, feature = "test-support"))]
1893    //     pub fn zoomed_view(&self, cx: &AppContext) -> Option<AnyViewHandle> {
1894    //         self.zoomed.and_then(|view| view.upgrade(cx))
1895    //     }
1896
1897    //     fn dismiss_zoomed_items_to_reveal(
1898    //         &mut self,
1899    //         dock_to_reveal: Option<DockPosition>,
1900    //         cx: &mut ViewContext<Self>,
1901    //     ) {
1902    //         // If a center pane is zoomed, unzoom it.
1903    //         for pane in &self.panes {
1904    //             if pane != &self.active_pane || dock_to_reveal.is_some() {
1905    //                 pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
1906    //             }
1907    //         }
1908
1909    //         // If another dock is zoomed, hide it.
1910    //         let mut focus_center = false;
1911    //         for dock in [&self.left_dock, &self.right_dock, &self.bottom_dock] {
1912    //             dock.update(cx, |dock, cx| {
1913    //                 if Some(dock.position()) != dock_to_reveal {
1914    //                     if let Some(panel) = dock.active_panel() {
1915    //                         if panel.is_zoomed(cx) {
1916    //                             focus_center |= panel.has_focus(cx);
1917    //                             dock.set_open(false, cx);
1918    //                         }
1919    //                     }
1920    //                 }
1921    //             });
1922    //         }
1923
1924    //         if focus_center {
1925    //             cx.focus_self();
1926    //         }
1927
1928    //         if self.zoomed_position != dock_to_reveal {
1929    //             self.zoomed = None;
1930    //             self.zoomed_position = None;
1931    //         }
1932
1933    //         cx.notify();
1934    //     }
1935
1936    fn add_pane(&mut self, cx: &mut ViewContext<Self>) -> View<Pane> {
1937        todo!()
1938        // let pane = cx.build_view(|cx| {
1939        //     Pane::new(
1940        //         self.weak_handle(),
1941        //         self.project.clone(),
1942        //         self.pane_history_timestamp.clone(),
1943        //         cx,
1944        //     )
1945        // });
1946        // cx.subscribe(&pane, Self::handle_pane_event).detach();
1947        // self.panes.push(pane.clone());
1948        // todo!()
1949        // cx.focus(&pane);
1950        // cx.emit(Event::PaneAdded(pane.clone()));
1951        // pane
1952    }
1953
1954    //     pub fn add_item_to_center(
1955    //         &mut self,
1956    //         item: Box<dyn ItemHandle>,
1957    //         cx: &mut ViewContext<Self>,
1958    //     ) -> bool {
1959    //         if let Some(center_pane) = self.last_active_center_pane.clone() {
1960    //             if let Some(center_pane) = center_pane.upgrade(cx) {
1961    //                 center_pane.update(cx, |pane, cx| pane.add_item(item, true, true, None, cx));
1962    //                 true
1963    //             } else {
1964    //                 false
1965    //             }
1966    //         } else {
1967    //             false
1968    //         }
1969    //     }
1970
1971    //     pub fn add_item(&mut self, item: Box<dyn ItemHandle>, cx: &mut ViewContext<Self>) {
1972    //         self.active_pane
1973    //             .update(cx, |pane, cx| pane.add_item(item, true, true, None, cx));
1974    //     }
1975
1976    //     pub fn split_item(
1977    //         &mut self,
1978    //         split_direction: SplitDirection,
1979    //         item: Box<dyn ItemHandle>,
1980    //         cx: &mut ViewContext<Self>,
1981    //     ) {
1982    //         let new_pane = self.split_pane(self.active_pane.clone(), split_direction, cx);
1983    //         new_pane.update(cx, move |new_pane, cx| {
1984    //             new_pane.add_item(item, true, true, None, cx)
1985    //         })
1986    //     }
1987
1988    //     pub fn open_abs_path(
1989    //         &mut self,
1990    //         abs_path: PathBuf,
1991    //         visible: bool,
1992    //         cx: &mut ViewContext<Self>,
1993    //     ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
1994    //         cx.spawn(|workspace, mut cx| async move {
1995    //             let open_paths_task_result = workspace
1996    //                 .update(&mut cx, |workspace, cx| {
1997    //                     workspace.open_paths(vec![abs_path.clone()], visible, cx)
1998    //                 })
1999    //                 .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
2000    //                 .await;
2001    //             anyhow::ensure!(
2002    //                 open_paths_task_result.len() == 1,
2003    //                 "open abs path {abs_path:?} task returned incorrect number of results"
2004    //             );
2005    //             match open_paths_task_result
2006    //                 .into_iter()
2007    //                 .next()
2008    //                 .expect("ensured single task result")
2009    //             {
2010    //                 Some(open_result) => {
2011    //                     open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
2012    //                 }
2013    //                 None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
2014    //             }
2015    //         })
2016    //     }
2017
2018    //     pub fn split_abs_path(
2019    //         &mut self,
2020    //         abs_path: PathBuf,
2021    //         visible: bool,
2022    //         cx: &mut ViewContext<Self>,
2023    //     ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
2024    //         let project_path_task =
2025    //             Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
2026    //         cx.spawn(|this, mut cx| async move {
2027    //             let (_, path) = project_path_task.await?;
2028    //             this.update(&mut cx, |this, cx| this.split_path(path, cx))?
2029    //                 .await
2030    //         })
2031    //     }
2032
2033    pub fn open_path(
2034        &mut self,
2035        path: impl Into<ProjectPath>,
2036        pane: Option<WeakView<Pane>>,
2037        focus_item: bool,
2038        cx: &mut ViewContext<Self>,
2039    ) -> Task<Result<Box<dyn ItemHandle>, anyhow::Error>> {
2040        let pane = pane.unwrap_or_else(|| {
2041            self.last_active_center_pane.clone().unwrap_or_else(|| {
2042                self.panes
2043                    .first()
2044                    .expect("There must be an active pane")
2045                    .downgrade()
2046            })
2047        });
2048
2049        let task = self.load_path(path.into(), cx);
2050        cx.spawn(move |_, mut cx| async move {
2051            let (project_entry_id, build_item) = task.await?;
2052            pane.update(&mut cx, |pane, cx| {
2053                pane.open_item(project_entry_id, focus_item, cx, build_item)
2054            })
2055        })
2056    }
2057
2058    //     pub fn split_path(
2059    //         &mut self,
2060    //         path: impl Into<ProjectPath>,
2061    //         cx: &mut ViewContext<Self>,
2062    //     ) -> Task<Result<Box<dyn ItemHandle>, anyhow::Error>> {
2063    //         let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
2064    //             self.panes
2065    //                 .first()
2066    //                 .expect("There must be an active pane")
2067    //                 .downgrade()
2068    //         });
2069
2070    //         if let Member::Pane(center_pane) = &self.center.root {
2071    //             if center_pane.read(cx).items_len() == 0 {
2072    //                 return self.open_path(path, Some(pane), true, cx);
2073    //             }
2074    //         }
2075
2076    //         let task = self.load_path(path.into(), cx);
2077    //         cx.spawn(|this, mut cx| async move {
2078    //             let (project_entry_id, build_item) = task.await?;
2079    //             this.update(&mut cx, move |this, cx| -> Option<_> {
2080    //                 let pane = pane.upgrade(cx)?;
2081    //                 let new_pane = this.split_pane(pane, SplitDirection::Right, cx);
2082    //                 new_pane.update(cx, |new_pane, cx| {
2083    //                     Some(new_pane.open_item(project_entry_id, true, cx, build_item))
2084    //                 })
2085    //             })
2086    //             .map(|option| option.ok_or_else(|| anyhow!("pane was dropped")))?
2087    //         })
2088    //     }
2089
2090    pub(crate) fn load_path(
2091        &mut self,
2092        path: ProjectPath,
2093        cx: &mut ViewContext<Self>,
2094    ) -> Task<
2095        Result<(
2096            ProjectEntryId,
2097            impl 'static + Send + FnOnce(&mut ViewContext<Pane>) -> Box<dyn ItemHandle>,
2098        )>,
2099    > {
2100        let project = self.project().clone();
2101        let project_item = project.update(cx, |project, cx| project.open_path(path, cx));
2102        cx.spawn(|_, cx| async move {
2103            let (project_entry_id, project_item) = project_item.await?;
2104            let build_item = cx.update(|cx| {
2105                cx.default_global::<ProjectItemBuilders>()
2106                    .get(&project_item.type_id())
2107                    .ok_or_else(|| anyhow!("no item builder for project item"))
2108                    .cloned()
2109            })??;
2110            let build_item =
2111                move |cx: &mut ViewContext<Pane>| build_item(project, project_item, cx);
2112            Ok((project_entry_id, build_item))
2113        })
2114    }
2115
2116    //     pub fn open_project_item<T>(
2117    //         &mut self,
2118    //         project_item: ModelHandle<T::Item>,
2119    //         cx: &mut ViewContext<Self>,
2120    //     ) -> View<T>
2121    //     where
2122    //         T: ProjectItem,
2123    //     {
2124    //         use project::Item as _;
2125
2126    //         let entry_id = project_item.read(cx).entry_id(cx);
2127    //         if let Some(item) = entry_id
2128    //             .and_then(|entry_id| self.active_pane().read(cx).item_for_entry(entry_id, cx))
2129    //             .and_then(|item| item.downcast())
2130    //         {
2131    //             self.activate_item(&item, cx);
2132    //             return item;
2133    //         }
2134
2135    //         let item = cx.add_view(|cx| T::for_project_item(self.project().clone(), project_item, cx));
2136    //         self.add_item(Box::new(item.clone()), cx);
2137    //         item
2138    //     }
2139
2140    //     pub fn split_project_item<T>(
2141    //         &mut self,
2142    //         project_item: ModelHandle<T::Item>,
2143    //         cx: &mut ViewContext<Self>,
2144    //     ) -> View<T>
2145    //     where
2146    //         T: ProjectItem,
2147    //     {
2148    //         use project::Item as _;
2149
2150    //         let entry_id = project_item.read(cx).entry_id(cx);
2151    //         if let Some(item) = entry_id
2152    //             .and_then(|entry_id| self.active_pane().read(cx).item_for_entry(entry_id, cx))
2153    //             .and_then(|item| item.downcast())
2154    //         {
2155    //             self.activate_item(&item, cx);
2156    //             return item;
2157    //         }
2158
2159    //         let item = cx.add_view(|cx| T::for_project_item(self.project().clone(), project_item, cx));
2160    //         self.split_item(SplitDirection::Right, Box::new(item.clone()), cx);
2161    //         item
2162    //     }
2163
2164    //     pub fn open_shared_screen(&mut self, peer_id: PeerId, cx: &mut ViewContext<Self>) {
2165    //         if let Some(shared_screen) = self.shared_screen_for_peer(peer_id, &self.active_pane, cx) {
2166    //             self.active_pane.update(cx, |pane, cx| {
2167    //                 pane.add_item(Box::new(shared_screen), false, true, None, cx)
2168    //             });
2169    //         }
2170    //     }
2171
2172    //     pub fn activate_item(&mut self, item: &dyn ItemHandle, cx: &mut ViewContext<Self>) -> bool {
2173    //         let result = self.panes.iter().find_map(|pane| {
2174    //             pane.read(cx)
2175    //                 .index_for_item(item)
2176    //                 .map(|ix| (pane.clone(), ix))
2177    //         });
2178    //         if let Some((pane, ix)) = result {
2179    //             pane.update(cx, |pane, cx| pane.activate_item(ix, true, true, cx));
2180    //             true
2181    //         } else {
2182    //             false
2183    //         }
2184    //     }
2185
2186    //     fn activate_pane_at_index(&mut self, action: &ActivatePane, cx: &mut ViewContext<Self>) {
2187    //         let panes = self.center.panes();
2188    //         if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
2189    //             cx.focus(&pane);
2190    //         } else {
2191    //             self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, cx);
2192    //         }
2193    //     }
2194
2195    //     pub fn activate_next_pane(&mut self, cx: &mut ViewContext<Self>) {
2196    //         let panes = self.center.panes();
2197    //         if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
2198    //             let next_ix = (ix + 1) % panes.len();
2199    //             let next_pane = panes[next_ix].clone();
2200    //             cx.focus(&next_pane);
2201    //         }
2202    //     }
2203
2204    //     pub fn activate_previous_pane(&mut self, cx: &mut ViewContext<Self>) {
2205    //         let panes = self.center.panes();
2206    //         if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
2207    //             let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
2208    //             let prev_pane = panes[prev_ix].clone();
2209    //             cx.focus(&prev_pane);
2210    //         }
2211    //     }
2212
2213    //     pub fn activate_pane_in_direction(
2214    //         &mut self,
2215    //         direction: SplitDirection,
2216    //         cx: &mut ViewContext<Self>,
2217    //     ) {
2218    //         if let Some(pane) = self.find_pane_in_direction(direction, cx) {
2219    //             cx.focus(pane);
2220    //         }
2221    //     }
2222
2223    //     pub fn swap_pane_in_direction(
2224    //         &mut self,
2225    //         direction: SplitDirection,
2226    //         cx: &mut ViewContext<Self>,
2227    //     ) {
2228    //         if let Some(to) = self
2229    //             .find_pane_in_direction(direction, cx)
2230    //             .map(|pane| pane.clone())
2231    //         {
2232    //             self.center.swap(&self.active_pane.clone(), &to);
2233    //             cx.notify();
2234    //         }
2235    //     }
2236
2237    //     fn find_pane_in_direction(
2238    //         &mut self,
2239    //         direction: SplitDirection,
2240    //         cx: &mut ViewContext<Self>,
2241    //     ) -> Option<&View<Pane>> {
2242    //         let Some(bounding_box) = self.center.bounding_box_for_pane(&self.active_pane) else {
2243    //             return None;
2244    //         };
2245    //         let cursor = self.active_pane.read(cx).pixel_position_of_cursor(cx);
2246    //         let center = match cursor {
2247    //             Some(cursor) if bounding_box.contains_point(cursor) => cursor,
2248    //             _ => bounding_box.center(),
2249    //         };
2250
2251    //         let distance_to_next = theme::current(cx).workspace.pane_divider.width + 1.;
2252
2253    //         let target = match direction {
2254    //             SplitDirection::Left => vec2f(bounding_box.origin_x() - distance_to_next, center.y()),
2255    //             SplitDirection::Right => vec2f(bounding_box.max_x() + distance_to_next, center.y()),
2256    //             SplitDirection::Up => vec2f(center.x(), bounding_box.origin_y() - distance_to_next),
2257    //             SplitDirection::Down => vec2f(center.x(), bounding_box.max_y() + distance_to_next),
2258    //         };
2259    //         self.center.pane_at_pixel_position(target)
2260    //     }
2261
2262    //     fn handle_pane_focused(&mut self, pane: View<Pane>, cx: &mut ViewContext<Self>) {
2263    //         if self.active_pane != pane {
2264    //             self.active_pane = pane.clone();
2265    //             self.status_bar.update(cx, |status_bar, cx| {
2266    //                 status_bar.set_active_pane(&self.active_pane, cx);
2267    //             });
2268    //             self.active_item_path_changed(cx);
2269    //             self.last_active_center_pane = Some(pane.downgrade());
2270    //         }
2271
2272    //         self.dismiss_zoomed_items_to_reveal(None, cx);
2273    //         if pane.read(cx).is_zoomed() {
2274    //             self.zoomed = Some(pane.downgrade().into_any());
2275    //         } else {
2276    //             self.zoomed = None;
2277    //         }
2278    //         self.zoomed_position = None;
2279    //         self.update_active_view_for_followers(cx);
2280
2281    //         cx.notify();
2282    //     }
2283
2284    //     fn handle_pane_event(
2285    //         &mut self,
2286    //         pane: View<Pane>,
2287    //         event: &pane::Event,
2288    //         cx: &mut ViewContext<Self>,
2289    //     ) {
2290    //         match event {
2291    //             pane::Event::AddItem { item } => item.added_to_pane(self, pane, cx),
2292    //             pane::Event::Split(direction) => {
2293    //                 self.split_and_clone(pane, *direction, cx);
2294    //             }
2295    //             pane::Event::Remove => self.remove_pane(pane, cx),
2296    //             pane::Event::ActivateItem { local } => {
2297    //                 if *local {
2298    //                     self.unfollow(&pane, cx);
2299    //                 }
2300    //                 if &pane == self.active_pane() {
2301    //                     self.active_item_path_changed(cx);
2302    //                 }
2303    //             }
2304    //             pane::Event::ChangeItemTitle => {
2305    //                 if pane == self.active_pane {
2306    //                     self.active_item_path_changed(cx);
2307    //                 }
2308    //                 self.update_window_edited(cx);
2309    //             }
2310    //             pane::Event::RemoveItem { item_id } => {
2311    //                 self.update_window_edited(cx);
2312    //                 if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(*item_id) {
2313    //                     if entry.get().id() == pane.id() {
2314    //                         entry.remove();
2315    //                     }
2316    //                 }
2317    //             }
2318    //             pane::Event::Focus => {
2319    //                 self.handle_pane_focused(pane.clone(), cx);
2320    //             }
2321    //             pane::Event::ZoomIn => {
2322    //                 if pane == self.active_pane {
2323    //                     pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
2324    //                     if pane.read(cx).has_focus() {
2325    //                         self.zoomed = Some(pane.downgrade().into_any());
2326    //                         self.zoomed_position = None;
2327    //                     }
2328    //                     cx.notify();
2329    //                 }
2330    //             }
2331    //             pane::Event::ZoomOut => {
2332    //                 pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
2333    //                 if self.zoomed_position.is_none() {
2334    //                     self.zoomed = None;
2335    //                 }
2336    //                 cx.notify();
2337    //             }
2338    //         }
2339
2340    //         self.serialize_workspace(cx);
2341    //     }
2342
2343    //     pub fn split_pane(
2344    //         &mut self,
2345    //         pane_to_split: View<Pane>,
2346    //         split_direction: SplitDirection,
2347    //         cx: &mut ViewContext<Self>,
2348    //     ) -> View<Pane> {
2349    //         let new_pane = self.add_pane(cx);
2350    //         self.center
2351    //             .split(&pane_to_split, &new_pane, split_direction)
2352    //             .unwrap();
2353    //         cx.notify();
2354    //         new_pane
2355    //     }
2356
2357    //     pub fn split_and_clone(
2358    //         &mut self,
2359    //         pane: View<Pane>,
2360    //         direction: SplitDirection,
2361    //         cx: &mut ViewContext<Self>,
2362    //     ) -> Option<View<Pane>> {
2363    //         let item = pane.read(cx).active_item()?;
2364    //         let maybe_pane_handle = if let Some(clone) = item.clone_on_split(self.database_id(), cx) {
2365    //             let new_pane = self.add_pane(cx);
2366    //             new_pane.update(cx, |pane, cx| pane.add_item(clone, true, true, None, cx));
2367    //             self.center.split(&pane, &new_pane, direction).unwrap();
2368    //             Some(new_pane)
2369    //         } else {
2370    //             None
2371    //         };
2372    //         cx.notify();
2373    //         maybe_pane_handle
2374    //     }
2375
2376    //     pub fn split_pane_with_item(
2377    //         &mut self,
2378    //         pane_to_split: WeakView<Pane>,
2379    //         split_direction: SplitDirection,
2380    //         from: WeakView<Pane>,
2381    //         item_id_to_move: usize,
2382    //         cx: &mut ViewContext<Self>,
2383    //     ) {
2384    //         let Some(pane_to_split) = pane_to_split.upgrade(cx) else {
2385    //             return;
2386    //         };
2387    //         let Some(from) = from.upgrade(cx) else {
2388    //             return;
2389    //         };
2390
2391    //         let new_pane = self.add_pane(cx);
2392    //         self.move_item(from.clone(), new_pane.clone(), item_id_to_move, 0, cx);
2393    //         self.center
2394    //             .split(&pane_to_split, &new_pane, split_direction)
2395    //             .unwrap();
2396    //         cx.notify();
2397    //     }
2398
2399    //     pub fn split_pane_with_project_entry(
2400    //         &mut self,
2401    //         pane_to_split: WeakView<Pane>,
2402    //         split_direction: SplitDirection,
2403    //         project_entry: ProjectEntryId,
2404    //         cx: &mut ViewContext<Self>,
2405    //     ) -> Option<Task<Result<()>>> {
2406    //         let pane_to_split = pane_to_split.upgrade(cx)?;
2407    //         let new_pane = self.add_pane(cx);
2408    //         self.center
2409    //             .split(&pane_to_split, &new_pane, split_direction)
2410    //             .unwrap();
2411
2412    //         let path = self.project.read(cx).path_for_entry(project_entry, cx)?;
2413    //         let task = self.open_path(path, Some(new_pane.downgrade()), true, cx);
2414    //         Some(cx.foreground().spawn(async move {
2415    //             task.await?;
2416    //             Ok(())
2417    //         }))
2418    //     }
2419
2420    //     pub fn move_item(
2421    //         &mut self,
2422    //         source: View<Pane>,
2423    //         destination: View<Pane>,
2424    //         item_id_to_move: usize,
2425    //         destination_index: usize,
2426    //         cx: &mut ViewContext<Self>,
2427    //     ) {
2428    //         let item_to_move = source
2429    //             .read(cx)
2430    //             .items()
2431    //             .enumerate()
2432    //             .find(|(_, item_handle)| item_handle.id() == item_id_to_move);
2433
2434    //         if item_to_move.is_none() {
2435    //             log::warn!("Tried to move item handle which was not in `from` pane. Maybe tab was closed during drop");
2436    //             return;
2437    //         }
2438    //         let (item_ix, item_handle) = item_to_move.unwrap();
2439    //         let item_handle = item_handle.clone();
2440
2441    //         if source != destination {
2442    //             // Close item from previous pane
2443    //             source.update(cx, |source, cx| {
2444    //                 source.remove_item(item_ix, false, cx);
2445    //             });
2446    //         }
2447
2448    //         // This automatically removes duplicate items in the pane
2449    //         destination.update(cx, |destination, cx| {
2450    //             destination.add_item(item_handle, true, true, Some(destination_index), cx);
2451    //             cx.focus_self();
2452    //         });
2453    //     }
2454
2455    //     fn remove_pane(&mut self, pane: View<Pane>, cx: &mut ViewContext<Self>) {
2456    //         if self.center.remove(&pane).unwrap() {
2457    //             self.force_remove_pane(&pane, cx);
2458    //             self.unfollow(&pane, cx);
2459    //             self.last_leaders_by_pane.remove(&pane.downgrade());
2460    //             for removed_item in pane.read(cx).items() {
2461    //                 self.panes_by_item.remove(&removed_item.id());
2462    //             }
2463
2464    //             cx.notify();
2465    //         } else {
2466    //             self.active_item_path_changed(cx);
2467    //         }
2468    //     }
2469
2470    //     pub fn panes(&self) -> &[View<Pane>] {
2471    //         &self.panes
2472    //     }
2473
2474    //     pub fn active_pane(&self) -> &View<Pane> {
2475    //         &self.active_pane
2476    //     }
2477
2478    //     fn collaborator_left(&mut self, peer_id: PeerId, cx: &mut ViewContext<Self>) {
2479    //         self.follower_states.retain(|_, state| {
2480    //             if state.leader_id == peer_id {
2481    //                 for item in state.items_by_leader_view_id.values() {
2482    //                     item.set_leader_peer_id(None, cx);
2483    //                 }
2484    //                 false
2485    //             } else {
2486    //                 true
2487    //             }
2488    //         });
2489    //         cx.notify();
2490    //     }
2491
2492    //     fn start_following(
2493    //         &mut self,
2494    //         leader_id: PeerId,
2495    //         cx: &mut ViewContext<Self>,
2496    //     ) -> Option<Task<Result<()>>> {
2497    //         let pane = self.active_pane().clone();
2498
2499    //         self.last_leaders_by_pane
2500    //             .insert(pane.downgrade(), leader_id);
2501    //         self.unfollow(&pane, cx);
2502    //         self.follower_states.insert(
2503    //             pane.clone(),
2504    //             FollowerState {
2505    //                 leader_id,
2506    //                 active_view_id: None,
2507    //                 items_by_leader_view_id: Default::default(),
2508    //             },
2509    //         );
2510    //         cx.notify();
2511
2512    //         let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
2513    //         let project_id = self.project.read(cx).remote_id();
2514    //         let request = self.app_state.client.request(proto::Follow {
2515    //             room_id,
2516    //             project_id,
2517    //             leader_id: Some(leader_id),
2518    //         });
2519
2520    //         Some(cx.spawn(|this, mut cx| async move {
2521    //             let response = request.await?;
2522    //             this.update(&mut cx, |this, _| {
2523    //                 let state = this
2524    //                     .follower_states
2525    //                     .get_mut(&pane)
2526    //                     .ok_or_else(|| anyhow!("following interrupted"))?;
2527    //                 state.active_view_id = if let Some(active_view_id) = response.active_view_id {
2528    //                     Some(ViewId::from_proto(active_view_id)?)
2529    //                 } else {
2530    //                     None
2531    //                 };
2532    //                 Ok::<_, anyhow::Error>(())
2533    //             })??;
2534    //             Self::add_views_from_leader(
2535    //                 this.clone(),
2536    //                 leader_id,
2537    //                 vec![pane],
2538    //                 response.views,
2539    //                 &mut cx,
2540    //             )
2541    //             .await?;
2542    //             this.update(&mut cx, |this, cx| this.leader_updated(leader_id, cx))?;
2543    //             Ok(())
2544    //         }))
2545    //     }
2546
2547    //     pub fn follow_next_collaborator(
2548    //         &mut self,
2549    //         _: &FollowNextCollaborator,
2550    //         cx: &mut ViewContext<Self>,
2551    //     ) -> Option<Task<Result<()>>> {
2552    //         let collaborators = self.project.read(cx).collaborators();
2553    //         let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
2554    //             let mut collaborators = collaborators.keys().copied();
2555    //             for peer_id in collaborators.by_ref() {
2556    //                 if peer_id == leader_id {
2557    //                     break;
2558    //                 }
2559    //             }
2560    //             collaborators.next()
2561    //         } else if let Some(last_leader_id) =
2562    //             self.last_leaders_by_pane.get(&self.active_pane.downgrade())
2563    //         {
2564    //             if collaborators.contains_key(last_leader_id) {
2565    //                 Some(*last_leader_id)
2566    //             } else {
2567    //                 None
2568    //             }
2569    //         } else {
2570    //             None
2571    //         };
2572
2573    //         let pane = self.active_pane.clone();
2574    //         let Some(leader_id) = next_leader_id.or_else(|| collaborators.keys().copied().next())
2575    //         else {
2576    //             return None;
2577    //         };
2578    //         if Some(leader_id) == self.unfollow(&pane, cx) {
2579    //             return None;
2580    //         }
2581    //         self.follow(leader_id, cx)
2582    //     }
2583
2584    //     pub fn follow(
2585    //         &mut self,
2586    //         leader_id: PeerId,
2587    //         cx: &mut ViewContext<Self>,
2588    //     ) -> Option<Task<Result<()>>> {
2589    //         let room = ActiveCall::global(cx).read(cx).room()?.read(cx);
2590    //         let project = self.project.read(cx);
2591
2592    //         let Some(remote_participant) = room.remote_participant_for_peer_id(leader_id) else {
2593    //             return None;
2594    //         };
2595
2596    //         let other_project_id = match remote_participant.location {
2597    //             call::ParticipantLocation::External => None,
2598    //             call::ParticipantLocation::UnsharedProject => None,
2599    //             call::ParticipantLocation::SharedProject { project_id } => {
2600    //                 if Some(project_id) == project.remote_id() {
2601    //                     None
2602    //                 } else {
2603    //                     Some(project_id)
2604    //                 }
2605    //             }
2606    //         };
2607
2608    //         // if they are active in another project, follow there.
2609    //         if let Some(project_id) = other_project_id {
2610    //             let app_state = self.app_state.clone();
2611    //             return Some(crate::join_remote_project(
2612    //                 project_id,
2613    //                 remote_participant.user.id,
2614    //                 app_state,
2615    //                 cx,
2616    //             ));
2617    //         }
2618
2619    //         // if you're already following, find the right pane and focus it.
2620    //         for (pane, state) in &self.follower_states {
2621    //             if leader_id == state.leader_id {
2622    //                 cx.focus(pane);
2623    //                 return None;
2624    //             }
2625    //         }
2626
2627    //         // Otherwise, follow.
2628    //         self.start_following(leader_id, cx)
2629    //     }
2630
2631    pub fn unfollow(&mut self, pane: &View<Pane>, cx: &mut ViewContext<Self>) -> Option<PeerId> {
2632        let state = self.follower_states.remove(pane)?;
2633        let leader_id = state.leader_id;
2634        for (_, item) in state.items_by_leader_view_id {
2635            item.set_leader_peer_id(None, cx);
2636        }
2637
2638        if self
2639            .follower_states
2640            .values()
2641            .all(|state| state.leader_id != state.leader_id)
2642        {
2643            let project_id = self.project.read(cx).remote_id();
2644            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
2645            self.app_state
2646                .client
2647                .send(proto::Unfollow {
2648                    room_id,
2649                    project_id,
2650                    leader_id: Some(leader_id),
2651                })
2652                .log_err();
2653        }
2654
2655        cx.notify();
2656        Some(leader_id)
2657    }
2658
2659    //     pub fn is_being_followed(&self, peer_id: PeerId) -> bool {
2660    //         self.follower_states
2661    //             .values()
2662    //             .any(|state| state.leader_id == peer_id)
2663    //     }
2664
2665    //     fn render_titlebar(&self, theme: &Theme, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
2666    //         // TODO: There should be a better system in place for this
2667    //         // (https://github.com/zed-industries/zed/issues/1290)
2668    //         let is_fullscreen = cx.window_is_fullscreen();
2669    //         let container_theme = if is_fullscreen {
2670    //             let mut container_theme = theme.titlebar.container;
2671    //             container_theme.padding.left = container_theme.padding.right;
2672    //             container_theme
2673    //         } else {
2674    //             theme.titlebar.container
2675    //         };
2676
2677    //         enum TitleBar {}
2678    //         MouseEventHandler::new::<TitleBar, _>(0, cx, |_, cx| {
2679    //             Stack::new()
2680    //                 .with_children(
2681    //                     self.titlebar_item
2682    //                         .as_ref()
2683    //                         .map(|item| ChildView::new(item, cx)),
2684    //                 )
2685    //                 .contained()
2686    //                 .with_style(container_theme)
2687    //         })
2688    //         .on_click(MouseButton::Left, |event, _, cx| {
2689    //             if event.click_count == 2 {
2690    //                 cx.zoom_window();
2691    //             }
2692    //         })
2693    //         .constrained()
2694    //         .with_height(theme.titlebar.height)
2695    //         .into_any_named("titlebar")
2696    //     }
2697
2698    //     fn active_item_path_changed(&mut self, cx: &mut ViewContext<Self>) {
2699    //         let active_entry = self.active_project_path(cx);
2700    //         self.project
2701    //             .update(cx, |project, cx| project.set_active_path(active_entry, cx));
2702    //         self.update_window_title(cx);
2703    //     }
2704
2705    //     fn update_window_title(&mut self, cx: &mut ViewContext<Self>) {
2706    //         let project = self.project().read(cx);
2707    //         let mut title = String::new();
2708
2709    //         if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
2710    //             let filename = path
2711    //                 .path
2712    //                 .file_name()
2713    //                 .map(|s| s.to_string_lossy())
2714    //                 .or_else(|| {
2715    //                     Some(Cow::Borrowed(
2716    //                         project
2717    //                             .worktree_for_id(path.worktree_id, cx)?
2718    //                             .read(cx)
2719    //                             .root_name(),
2720    //                     ))
2721    //                 });
2722
2723    //             if let Some(filename) = filename {
2724    //                 title.push_str(filename.as_ref());
2725    //                 title.push_str(" β€” ");
2726    //             }
2727    //         }
2728
2729    //         for (i, name) in project.worktree_root_names(cx).enumerate() {
2730    //             if i > 0 {
2731    //                 title.push_str(", ");
2732    //             }
2733    //             title.push_str(name);
2734    //         }
2735
2736    //         if title.is_empty() {
2737    //             title = "empty project".to_string();
2738    //         }
2739
2740    //         if project.is_remote() {
2741    //             title.push_str(" ↙");
2742    //         } else if project.is_shared() {
2743    //             title.push_str(" β†—");
2744    //         }
2745
2746    //         cx.set_window_title(&title);
2747    //     }
2748
2749    //     fn update_window_edited(&mut self, cx: &mut ViewContext<Self>) {
2750    //         let is_edited = !self.project.read(cx).is_read_only()
2751    //             && self
2752    //                 .items(cx)
2753    //                 .any(|item| item.has_conflict(cx) || item.is_dirty(cx));
2754    //         if is_edited != self.window_edited {
2755    //             self.window_edited = is_edited;
2756    //             cx.set_window_edited(self.window_edited)
2757    //         }
2758    //     }
2759
2760    //     fn render_disconnected_overlay(
2761    //         &self,
2762    //         cx: &mut ViewContext<Workspace>,
2763    //     ) -> Option<AnyElement<Workspace>> {
2764    //         if self.project.read(cx).is_read_only() {
2765    //             enum DisconnectedOverlay {}
2766    //             Some(
2767    //                 MouseEventHandler::new::<DisconnectedOverlay, _>(0, cx, |_, cx| {
2768    //                     let theme = &theme::current(cx);
2769    //                     Label::new(
2770    //                         "Your connection to the remote project has been lost.",
2771    //                         theme.workspace.disconnected_overlay.text.clone(),
2772    //                     )
2773    //                     .aligned()
2774    //                     .contained()
2775    //                     .with_style(theme.workspace.disconnected_overlay.container)
2776    //                 })
2777    //                 .with_cursor_style(CursorStyle::Arrow)
2778    //                 .capture_all()
2779    //                 .into_any_named("disconnected overlay"),
2780    //             )
2781    //         } else {
2782    //             None
2783    //         }
2784    //     }
2785
2786    //     fn render_notifications(
2787    //         &self,
2788    //         theme: &theme::Workspace,
2789    //         cx: &AppContext,
2790    //     ) -> Option<AnyElement<Workspace>> {
2791    //         if self.notifications.is_empty() {
2792    //             None
2793    //         } else {
2794    //             Some(
2795    //                 Flex::column()
2796    //                     .with_children(self.notifications.iter().map(|(_, _, notification)| {
2797    //                         ChildView::new(notification.as_any(), cx)
2798    //                             .contained()
2799    //                             .with_style(theme.notification)
2800    //                     }))
2801    //                     .constrained()
2802    //                     .with_width(theme.notifications.width)
2803    //                     .contained()
2804    //                     .with_style(theme.notifications.container)
2805    //                     .aligned()
2806    //                     .bottom()
2807    //                     .right()
2808    //                     .into_any(),
2809    //             )
2810    //         }
2811    //     }
2812
2813    //     // RPC handlers
2814
2815    //     fn handle_follow(
2816    //         &mut self,
2817    //         follower_project_id: Option<u64>,
2818    //         cx: &mut ViewContext<Self>,
2819    //     ) -> proto::FollowResponse {
2820    //         let client = &self.app_state.client;
2821    //         let project_id = self.project.read(cx).remote_id();
2822
2823    //         let active_view_id = self.active_item(cx).and_then(|i| {
2824    //             Some(
2825    //                 i.to_followable_item_handle(cx)?
2826    //                     .remote_id(client, cx)?
2827    //                     .to_proto(),
2828    //             )
2829    //         });
2830
2831    //         cx.notify();
2832
2833    //         self.last_active_view_id = active_view_id.clone();
2834    //         proto::FollowResponse {
2835    //             active_view_id,
2836    //             views: self
2837    //                 .panes()
2838    //                 .iter()
2839    //                 .flat_map(|pane| {
2840    //                     let leader_id = self.leader_for_pane(pane);
2841    //                     pane.read(cx).items().filter_map({
2842    //                         let cx = &cx;
2843    //                         move |item| {
2844    //                             let item = item.to_followable_item_handle(cx)?;
2845    //                             if (project_id.is_none() || project_id != follower_project_id)
2846    //                                 && item.is_project_item(cx)
2847    //                             {
2848    //                                 return None;
2849    //                             }
2850    //                             let id = item.remote_id(client, cx)?.to_proto();
2851    //                             let variant = item.to_state_proto(cx)?;
2852    //                             Some(proto::View {
2853    //                                 id: Some(id),
2854    //                                 leader_id,
2855    //                                 variant: Some(variant),
2856    //                             })
2857    //                         }
2858    //                     })
2859    //                 })
2860    //                 .collect(),
2861    //         }
2862    //     }
2863
2864    fn handle_update_followers(
2865        &mut self,
2866        leader_id: PeerId,
2867        message: proto::UpdateFollowers,
2868        _cx: &mut ViewContext<Self>,
2869    ) {
2870        self.leader_updates_tx
2871            .unbounded_send((leader_id, message))
2872            .ok();
2873    }
2874
2875    //     async fn process_leader_update(
2876    //         this: &WeakView<Self>,
2877    //         leader_id: PeerId,
2878    //         update: proto::UpdateFollowers,
2879    //         cx: &mut AsyncAppContext,
2880    //     ) -> Result<()> {
2881    //         match update.variant.ok_or_else(|| anyhow!("invalid update"))? {
2882    //             proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
2883    //                 this.update(cx, |this, _| {
2884    //                     for (_, state) in &mut this.follower_states {
2885    //                         if state.leader_id == leader_id {
2886    //                             state.active_view_id =
2887    //                                 if let Some(active_view_id) = update_active_view.id.clone() {
2888    //                                     Some(ViewId::from_proto(active_view_id)?)
2889    //                                 } else {
2890    //                                     None
2891    //                                 };
2892    //                         }
2893    //                     }
2894    //                     anyhow::Ok(())
2895    //                 })??;
2896    //             }
2897    //             proto::update_followers::Variant::UpdateView(update_view) => {
2898    //                 let variant = update_view
2899    //                     .variant
2900    //                     .ok_or_else(|| anyhow!("missing update view variant"))?;
2901    //                 let id = update_view
2902    //                     .id
2903    //                     .ok_or_else(|| anyhow!("missing update view id"))?;
2904    //                 let mut tasks = Vec::new();
2905    //                 this.update(cx, |this, cx| {
2906    //                     let project = this.project.clone();
2907    //                     for (_, state) in &mut this.follower_states {
2908    //                         if state.leader_id == leader_id {
2909    //                             let view_id = ViewId::from_proto(id.clone())?;
2910    //                             if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
2911    //                                 tasks.push(item.apply_update_proto(&project, variant.clone(), cx));
2912    //                             }
2913    //                         }
2914    //                     }
2915    //                     anyhow::Ok(())
2916    //                 })??;
2917    //                 try_join_all(tasks).await.log_err();
2918    //             }
2919    //             proto::update_followers::Variant::CreateView(view) => {
2920    //                 let panes = this.read_with(cx, |this, _| {
2921    //                     this.follower_states
2922    //                         .iter()
2923    //                         .filter_map(|(pane, state)| (state.leader_id == leader_id).then_some(pane))
2924    //                         .cloned()
2925    //                         .collect()
2926    //                 })?;
2927    //                 Self::add_views_from_leader(this.clone(), leader_id, panes, vec![view], cx).await?;
2928    //             }
2929    //         }
2930    //         this.update(cx, |this, cx| this.leader_updated(leader_id, cx))?;
2931    //         Ok(())
2932    //     }
2933
2934    //     async fn add_views_from_leader(
2935    //         this: WeakView<Self>,
2936    //         leader_id: PeerId,
2937    //         panes: Vec<View<Pane>>,
2938    //         views: Vec<proto::View>,
2939    //         cx: &mut AsyncAppContext,
2940    //     ) -> Result<()> {
2941    //         let this = this
2942    //             .upgrade(cx)
2943    //             .ok_or_else(|| anyhow!("workspace dropped"))?;
2944
2945    //         let item_builders = cx.update(|cx| {
2946    //             cx.default_global::<FollowableItemBuilders>()
2947    //                 .values()
2948    //                 .map(|b| b.0)
2949    //                 .collect::<Vec<_>>()
2950    //         });
2951
2952    //         let mut item_tasks_by_pane = HashMap::default();
2953    //         for pane in panes {
2954    //             let mut item_tasks = Vec::new();
2955    //             let mut leader_view_ids = Vec::new();
2956    //             for view in &views {
2957    //                 let Some(id) = &view.id else { continue };
2958    //                 let id = ViewId::from_proto(id.clone())?;
2959    //                 let mut variant = view.variant.clone();
2960    //                 if variant.is_none() {
2961    //                     Err(anyhow!("missing view variant"))?;
2962    //                 }
2963    //                 for build_item in &item_builders {
2964    //                     let task = cx
2965    //                         .update(|cx| build_item(pane.clone(), this.clone(), id, &mut variant, cx));
2966    //                     if let Some(task) = task {
2967    //                         item_tasks.push(task);
2968    //                         leader_view_ids.push(id);
2969    //                         break;
2970    //                     } else {
2971    //                         assert!(variant.is_some());
2972    //                     }
2973    //                 }
2974    //             }
2975
2976    //             item_tasks_by_pane.insert(pane, (item_tasks, leader_view_ids));
2977    //         }
2978
2979    //         for (pane, (item_tasks, leader_view_ids)) in item_tasks_by_pane {
2980    //             let items = futures::future::try_join_all(item_tasks).await?;
2981    //             this.update(cx, |this, cx| {
2982    //                 let state = this.follower_states.get_mut(&pane)?;
2983    //                 for (id, item) in leader_view_ids.into_iter().zip(items) {
2984    //                     item.set_leader_peer_id(Some(leader_id), cx);
2985    //                     state.items_by_leader_view_id.insert(id, item);
2986    //                 }
2987
2988    //                 Some(())
2989    //             });
2990    //         }
2991    //         Ok(())
2992    //     }
2993
2994    //     fn update_active_view_for_followers(&mut self, cx: &AppContext) {
2995    //         let mut is_project_item = true;
2996    //         let mut update = proto::UpdateActiveView::default();
2997    //         if self.active_pane.read(cx).has_focus() {
2998    //             let item = self
2999    //                 .active_item(cx)
3000    //                 .and_then(|item| item.to_followable_item_handle(cx));
3001    //             if let Some(item) = item {
3002    //                 is_project_item = item.is_project_item(cx);
3003    //                 update = proto::UpdateActiveView {
3004    //                     id: item
3005    //                         .remote_id(&self.app_state.client, cx)
3006    //                         .map(|id| id.to_proto()),
3007    //                     leader_id: self.leader_for_pane(&self.active_pane),
3008    //                 };
3009    //             }
3010    //         }
3011
3012    //         if update.id != self.last_active_view_id {
3013    //             self.last_active_view_id = update.id.clone();
3014    //             self.update_followers(
3015    //                 is_project_item,
3016    //                 proto::update_followers::Variant::UpdateActiveView(update),
3017    //                 cx,
3018    //             );
3019    //         }
3020    //     }
3021
3022    fn update_followers(
3023        &self,
3024        project_only: bool,
3025        update: proto::update_followers::Variant,
3026        cx: &mut AppContext,
3027    ) -> Option<()> {
3028        let project_id = if project_only {
3029            self.project.read(cx).remote_id()
3030        } else {
3031            None
3032        };
3033        self.app_state().workspace_store.update(cx, |store, cx| {
3034            store.update_followers(project_id, update, cx)
3035        })
3036    }
3037
3038    pub fn leader_for_pane(&self, pane: &View<Pane>) -> Option<PeerId> {
3039        self.follower_states.get(pane).map(|state| state.leader_id)
3040    }
3041
3042    //     fn leader_updated(&mut self, leader_id: PeerId, cx: &mut ViewContext<Self>) -> Option<()> {
3043    //         cx.notify();
3044
3045    //         let call = self.active_call()?;
3046    //         let room = call.read(cx).room()?.read(cx);
3047    //         let participant = room.remote_participant_for_peer_id(leader_id)?;
3048    //         let mut items_to_activate = Vec::new();
3049
3050    //         let leader_in_this_app;
3051    //         let leader_in_this_project;
3052    //         match participant.location {
3053    //             call::ParticipantLocation::SharedProject { project_id } => {
3054    //                 leader_in_this_app = true;
3055    //                 leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
3056    //             }
3057    //             call::ParticipantLocation::UnsharedProject => {
3058    //                 leader_in_this_app = true;
3059    //                 leader_in_this_project = false;
3060    //             }
3061    //             call::ParticipantLocation::External => {
3062    //                 leader_in_this_app = false;
3063    //                 leader_in_this_project = false;
3064    //             }
3065    //         };
3066
3067    //         for (pane, state) in &self.follower_states {
3068    //             if state.leader_id != leader_id {
3069    //                 continue;
3070    //             }
3071    //             if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
3072    //                 if let Some(item) = state.items_by_leader_view_id.get(&active_view_id) {
3073    //                     if leader_in_this_project || !item.is_project_item(cx) {
3074    //                         items_to_activate.push((pane.clone(), item.boxed_clone()));
3075    //                     }
3076    //                 } else {
3077    //                     log::warn!(
3078    //                         "unknown view id {:?} for leader {:?}",
3079    //                         active_view_id,
3080    //                         leader_id
3081    //                     );
3082    //                 }
3083    //                 continue;
3084    //             }
3085    //             if let Some(shared_screen) = self.shared_screen_for_peer(leader_id, pane, cx) {
3086    //                 items_to_activate.push((pane.clone(), Box::new(shared_screen)));
3087    //             }
3088    //         }
3089
3090    //         for (pane, item) in items_to_activate {
3091    //             let pane_was_focused = pane.read(cx).has_focus();
3092    //             if let Some(index) = pane.update(cx, |pane, _| pane.index_for_item(item.as_ref())) {
3093    //                 pane.update(cx, |pane, cx| pane.activate_item(index, false, false, cx));
3094    //             } else {
3095    //                 pane.update(cx, |pane, cx| {
3096    //                     pane.add_item(item.boxed_clone(), false, false, None, cx)
3097    //                 });
3098    //             }
3099
3100    //             if pane_was_focused {
3101    //                 pane.update(cx, |pane, cx| pane.focus_active_item(cx));
3102    //             }
3103    //         }
3104
3105    //         None
3106    //     }
3107
3108    //     fn shared_screen_for_peer(
3109    //         &self,
3110    //         peer_id: PeerId,
3111    //         pane: &View<Pane>,
3112    //         cx: &mut ViewContext<Self>,
3113    //     ) -> Option<View<SharedScreen>> {
3114    //         let call = self.active_call()?;
3115    //         let room = call.read(cx).room()?.read(cx);
3116    //         let participant = room.remote_participant_for_peer_id(peer_id)?;
3117    //         let track = participant.video_tracks.values().next()?.clone();
3118    //         let user = participant.user.clone();
3119
3120    //         for item in pane.read(cx).items_of_type::<SharedScreen>() {
3121    //             if item.read(cx).peer_id == peer_id {
3122    //                 return Some(item);
3123    //             }
3124    //         }
3125
3126    //         Some(cx.add_view(|cx| SharedScreen::new(&track, peer_id, user.clone(), cx)))
3127    //     }
3128
3129    //     pub fn on_window_activation_changed(&mut self, active: bool, cx: &mut ViewContext<Self>) {
3130    //         if active {
3131    //             self.update_active_view_for_followers(cx);
3132    //             cx.background()
3133    //                 .spawn(persistence::DB.update_timestamp(self.database_id()))
3134    //                 .detach();
3135    //         } else {
3136    //             for pane in &self.panes {
3137    //                 pane.update(cx, |pane, cx| {
3138    //                     if let Some(item) = pane.active_item() {
3139    //                         item.workspace_deactivated(cx);
3140    //                     }
3141    //                     if matches!(
3142    //                         settings::get::<WorkspaceSettings>(cx).autosave,
3143    //                         AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
3144    //                     ) {
3145    //                         for item in pane.items() {
3146    //                             Pane::autosave_item(item.as_ref(), self.project.clone(), cx)
3147    //                                 .detach_and_log_err(cx);
3148    //                         }
3149    //                     }
3150    //                 });
3151    //             }
3152    //         }
3153    //     }
3154
3155    fn active_call(&self) -> Option<&Model<ActiveCall>> {
3156        self.active_call.as_ref().map(|(call, _)| call)
3157    }
3158
3159    //     fn on_active_call_event(
3160    //         &mut self,
3161    //         _: ModelHandle<ActiveCall>,
3162    //         event: &call::room::Event,
3163    //         cx: &mut ViewContext<Self>,
3164    //     ) {
3165    //         match event {
3166    //             call::room::Event::ParticipantLocationChanged { participant_id }
3167    //             | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
3168    //                 self.leader_updated(*participant_id, cx);
3169    //             }
3170    //             _ => {}
3171    //         }
3172    //     }
3173
3174    //     pub fn database_id(&self) -> WorkspaceId {
3175    //         self.database_id
3176    //     }
3177
3178    fn location(&self, cx: &AppContext) -> Option<WorkspaceLocation> {
3179        let project = self.project().read(cx);
3180
3181        if project.is_local() {
3182            Some(
3183                project
3184                    .visible_worktrees(cx)
3185                    .map(|worktree| worktree.read(cx).abs_path())
3186                    .collect::<Vec<_>>()
3187                    .into(),
3188            )
3189        } else {
3190            None
3191        }
3192    }
3193
3194    //     fn remove_panes(&mut self, member: Member, cx: &mut ViewContext<Workspace>) {
3195    //         match member {
3196    //             Member::Axis(PaneAxis { members, .. }) => {
3197    //                 for child in members.iter() {
3198    //                     self.remove_panes(child.clone(), cx)
3199    //                 }
3200    //             }
3201    //             Member::Pane(pane) => {
3202    //                 self.force_remove_pane(&pane, cx);
3203    //             }
3204    //         }
3205    //     }
3206
3207    fn force_remove_pane(&mut self, pane: &View<Pane>, cx: &mut ViewContext<Workspace>) {
3208        self.panes.retain(|p| p != pane);
3209        if true {
3210            todo!()
3211            // cx.focus(self.panes.last().unwrap());
3212        }
3213        if self.last_active_center_pane == Some(pane.downgrade()) {
3214            self.last_active_center_pane = None;
3215        }
3216        cx.notify();
3217    }
3218
3219    //     fn schedule_serialize(&mut self, cx: &mut ViewContext<Self>) {
3220    //         self._schedule_serialize = Some(cx.spawn(|this, cx| async move {
3221    //             cx.background().timer(Duration::from_millis(100)).await;
3222    //             this.read_with(&cx, |this, cx| this.serialize_workspace(cx))
3223    //                 .ok();
3224    //         }));
3225    //     }
3226
3227    fn serialize_workspace(&self, cx: &mut ViewContext<Self>) {
3228        fn serialize_pane_handle(pane_handle: &View<Pane>, cx: &AppContext) -> SerializedPane {
3229            let (items, active) = {
3230                let pane = pane_handle.read(cx);
3231                let active_item_id = pane.active_item().map(|item| item.id());
3232                (
3233                    pane.items()
3234                        .filter_map(|item_handle| {
3235                            Some(SerializedItem {
3236                                kind: Arc::from(item_handle.serialized_item_kind()?),
3237                                item_id: item_handle.id(),
3238                                active: Some(item_handle.id()) == active_item_id,
3239                            })
3240                        })
3241                        .collect::<Vec<_>>(),
3242                    pane.has_focus(),
3243                )
3244            };
3245
3246            SerializedPane::new(items, active)
3247        }
3248
3249        fn build_serialized_pane_group(
3250            pane_group: &Member,
3251            cx: &AppContext,
3252        ) -> SerializedPaneGroup {
3253            match pane_group {
3254                Member::Axis(PaneAxis {
3255                    axis,
3256                    members,
3257                    flexes,
3258                    bounding_boxes: _,
3259                }) => SerializedPaneGroup::Group {
3260                    axis: *axis,
3261                    children: members
3262                        .iter()
3263                        .map(|member| build_serialized_pane_group(member, cx))
3264                        .collect::<Vec<_>>(),
3265                    flexes: Some(flexes.lock().clone()),
3266                },
3267                Member::Pane(pane_handle) => {
3268                    SerializedPaneGroup::Pane(serialize_pane_handle(&pane_handle, cx))
3269                }
3270            }
3271        }
3272
3273        fn build_serialized_docks(
3274            this: &Workspace,
3275            cx: &mut ViewContext<Workspace>,
3276        ) -> DockStructure {
3277            let left_dock = this.left_dock.read(cx);
3278            let left_visible = left_dock.is_open();
3279            let left_active_panel = left_dock.visible_panel().and_then(|panel| {
3280                todo!()
3281                // Some(
3282                //     cx.view_ui_name(panel.as_any().window(), panel.id())?
3283                //         .to_string(),
3284                // )
3285            });
3286            let left_dock_zoom = left_dock
3287                .visible_panel()
3288                .map(|panel| panel.is_zoomed(cx))
3289                .unwrap_or(false);
3290
3291            let right_dock = this.right_dock.read(cx);
3292            let right_visible = right_dock.is_open();
3293            let right_active_panel = right_dock.visible_panel().and_then(|panel| {
3294                todo!()
3295                // Some(
3296                //     cx.view_ui_name(panel.as_any().window(), panel.id())?
3297                //         .to_string(),
3298                // )
3299            });
3300            let right_dock_zoom = right_dock
3301                .visible_panel()
3302                .map(|panel| panel.is_zoomed(cx))
3303                .unwrap_or(false);
3304
3305            let bottom_dock = this.bottom_dock.read(cx);
3306            let bottom_visible = bottom_dock.is_open();
3307            let bottom_active_panel = bottom_dock.visible_panel().and_then(|panel| {
3308                todo!()
3309                // Some(
3310                //     cx.view_ui_name(panel.as_any().window(), panel.id())?
3311                //         .to_string(),
3312                // )
3313            });
3314            let bottom_dock_zoom = bottom_dock
3315                .visible_panel()
3316                .map(|panel| panel.is_zoomed(cx))
3317                .unwrap_or(false);
3318
3319            DockStructure {
3320                left: DockData {
3321                    visible: left_visible,
3322                    active_panel: left_active_panel,
3323                    zoom: left_dock_zoom,
3324                },
3325                right: DockData {
3326                    visible: right_visible,
3327                    active_panel: right_active_panel,
3328                    zoom: right_dock_zoom,
3329                },
3330                bottom: DockData {
3331                    visible: bottom_visible,
3332                    active_panel: bottom_active_panel,
3333                    zoom: bottom_dock_zoom,
3334                },
3335            }
3336        }
3337
3338        if let Some(location) = self.location(cx) {
3339            // Load bearing special case:
3340            //  - with_local_workspace() relies on this to not have other stuff open
3341            //    when you open your log
3342            if !location.paths().is_empty() {
3343                let center_group = build_serialized_pane_group(&self.center.root, cx);
3344                let docks = build_serialized_docks(self, cx);
3345
3346                let serialized_workspace = SerializedWorkspace {
3347                    id: self.database_id,
3348                    location,
3349                    center_group,
3350                    bounds: Default::default(),
3351                    display: Default::default(),
3352                    docks,
3353                };
3354
3355                cx.spawn(|_, _| persistence::DB.save_workspace(serialized_workspace))
3356                    .detach();
3357            }
3358        }
3359    }
3360
3361    //     pub(crate) fn load_workspace(
3362    //         workspace: WeakView<Workspace>,
3363    //         serialized_workspace: SerializedWorkspace,
3364    //         paths_to_open: Vec<Option<ProjectPath>>,
3365    //         cx: &mut AppContext,
3366    //     ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
3367    //         cx.spawn(|mut cx| async move {
3368    //             let (project, old_center_pane) = workspace.read_with(&cx, |workspace, _| {
3369    //                 (
3370    //                     workspace.project().clone(),
3371    //                     workspace.last_active_center_pane.clone(),
3372    //                 )
3373    //             })?;
3374
3375    //             let mut center_group = None;
3376    //             let mut center_items = None;
3377    //             // Traverse the splits tree and add to things
3378    //             if let Some((group, active_pane, items)) = serialized_workspace
3379    //                 .center_group
3380    //                 .deserialize(&project, serialized_workspace.id, &workspace, &mut cx)
3381    //                 .await
3382    //             {
3383    //                 center_items = Some(items);
3384    //                 center_group = Some((group, active_pane))
3385    //             }
3386
3387    //             let mut items_by_project_path = cx.read(|cx| {
3388    //                 center_items
3389    //                     .unwrap_or_default()
3390    //                     .into_iter()
3391    //                     .filter_map(|item| {
3392    //                         let item = item?;
3393    //                         let project_path = item.project_path(cx)?;
3394    //                         Some((project_path, item))
3395    //                     })
3396    //                     .collect::<HashMap<_, _>>()
3397    //             });
3398
3399    //             let opened_items = paths_to_open
3400    //                 .into_iter()
3401    //                 .map(|path_to_open| {
3402    //                     path_to_open
3403    //                         .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
3404    //                 })
3405    //                 .collect::<Vec<_>>();
3406
3407    //             // Remove old panes from workspace panes list
3408    //             workspace.update(&mut cx, |workspace, cx| {
3409    //                 if let Some((center_group, active_pane)) = center_group {
3410    //                     workspace.remove_panes(workspace.center.root.clone(), cx);
3411
3412    //                     // Swap workspace center group
3413    //                     workspace.center = PaneGroup::with_root(center_group);
3414
3415    //                     // Change the focus to the workspace first so that we retrigger focus in on the pane.
3416    //                     cx.focus_self();
3417
3418    //                     if let Some(active_pane) = active_pane {
3419    //                         cx.focus(&active_pane);
3420    //                     } else {
3421    //                         cx.focus(workspace.panes.last().unwrap());
3422    //                     }
3423    //                 } else {
3424    //                     let old_center_handle = old_center_pane.and_then(|weak| weak.upgrade(cx));
3425    //                     if let Some(old_center_handle) = old_center_handle {
3426    //                         cx.focus(&old_center_handle)
3427    //                     } else {
3428    //                         cx.focus_self()
3429    //                     }
3430    //                 }
3431
3432    //                 let docks = serialized_workspace.docks;
3433    //                 workspace.left_dock.update(cx, |dock, cx| {
3434    //                     dock.set_open(docks.left.visible, cx);
3435    //                     if let Some(active_panel) = docks.left.active_panel {
3436    //                         if let Some(ix) = dock.panel_index_for_ui_name(&active_panel, cx) {
3437    //                             dock.activate_panel(ix, cx);
3438    //                         }
3439    //                     }
3440    //                     dock.active_panel()
3441    //                         .map(|panel| panel.set_zoomed(docks.left.zoom, cx));
3442    //                     if docks.left.visible && docks.left.zoom {
3443    //                         cx.focus_self()
3444    //                     }
3445    //                 });
3446    //                 // TODO: I think the bug is that setting zoom or active undoes the bottom zoom or something
3447    //                 workspace.right_dock.update(cx, |dock, cx| {
3448    //                     dock.set_open(docks.right.visible, cx);
3449    //                     if let Some(active_panel) = docks.right.active_panel {
3450    //                         if let Some(ix) = dock.panel_index_for_ui_name(&active_panel, cx) {
3451    //                             dock.activate_panel(ix, cx);
3452    //                         }
3453    //                     }
3454    //                     dock.active_panel()
3455    //                         .map(|panel| panel.set_zoomed(docks.right.zoom, cx));
3456
3457    //                     if docks.right.visible && docks.right.zoom {
3458    //                         cx.focus_self()
3459    //                     }
3460    //                 });
3461    //                 workspace.bottom_dock.update(cx, |dock, cx| {
3462    //                     dock.set_open(docks.bottom.visible, cx);
3463    //                     if let Some(active_panel) = docks.bottom.active_panel {
3464    //                         if let Some(ix) = dock.panel_index_for_ui_name(&active_panel, cx) {
3465    //                             dock.activate_panel(ix, cx);
3466    //                         }
3467    //                     }
3468
3469    //                     dock.active_panel()
3470    //                         .map(|panel| panel.set_zoomed(docks.bottom.zoom, cx));
3471
3472    //                     if docks.bottom.visible && docks.bottom.zoom {
3473    //                         cx.focus_self()
3474    //                     }
3475    //                 });
3476
3477    //                 cx.notify();
3478    //             })?;
3479
3480    //             // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
3481    //             workspace.read_with(&cx, |workspace, cx| workspace.serialize_workspace(cx))?;
3482
3483    //             Ok(opened_items)
3484    //         })
3485    //     }
3486
3487    //     #[cfg(any(test, feature = "test-support"))]
3488    //     pub fn test_new(project: ModelHandle<Project>, cx: &mut ViewContext<Self>) -> Self {
3489    //         use node_runtime::FakeNodeRuntime;
3490
3491    //         let client = project.read(cx).client();
3492    //         let user_store = project.read(cx).user_store();
3493
3494    //         let workspace_store = cx.add_model(|cx| WorkspaceStore::new(client.clone(), cx));
3495    //         let app_state = Arc::new(AppState {
3496    //             languages: project.read(cx).languages().clone(),
3497    //             workspace_store,
3498    //             client,
3499    //             user_store,
3500    //             fs: project.read(cx).fs().clone(),
3501    //             build_window_options: |_, _, _| Default::default(),
3502    //             initialize_workspace: |_, _, _, _| Task::ready(Ok(())),
3503    //             node_runtime: FakeNodeRuntime::new(),
3504    //         });
3505    //         Self::new(0, project, app_state, cx)
3506    //     }
3507
3508    //     fn render_dock(&self, position: DockPosition, cx: &WindowContext) -> Option<AnyElement<Self>> {
3509    //         let dock = match position {
3510    //             DockPosition::Left => &self.left_dock,
3511    //             DockPosition::Right => &self.right_dock,
3512    //             DockPosition::Bottom => &self.bottom_dock,
3513    //         };
3514    //         let active_panel = dock.read(cx).visible_panel()?;
3515    //         let element = if Some(active_panel.id()) == self.zoomed.as_ref().map(|zoomed| zoomed.id()) {
3516    //             dock.read(cx).render_placeholder(cx)
3517    //         } else {
3518    //             ChildView::new(dock, cx).into_any()
3519    //         };
3520
3521    //         Some(
3522    //             element
3523    //                 .constrained()
3524    //                 .dynamically(move |constraint, _, cx| match position {
3525    //                     DockPosition::Left | DockPosition::Right => SizeConstraint::new(
3526    //                         Vector2F::new(20., constraint.min.y()),
3527    //                         Vector2F::new(cx.window_size().x() * 0.8, constraint.max.y()),
3528    //                     ),
3529    //                     DockPosition::Bottom => SizeConstraint::new(
3530    //                         Vector2F::new(constraint.min.x(), 20.),
3531    //                         Vector2F::new(constraint.max.x(), cx.window_size().y() * 0.8),
3532    //                     ),
3533    //                 })
3534    //                 .into_any(),
3535    //         )
3536    //     }
3537    // }
3538
3539    // fn window_bounds_env_override(cx: &AsyncAppContext) -> Option<WindowBounds> {
3540    //     ZED_WINDOW_POSITION
3541    //         .zip(*ZED_WINDOW_SIZE)
3542    //         .map(|(position, size)| {
3543    //             WindowBounds::Fixed(RectF::new(
3544    //                 cx.platform().screens()[0].bounds().origin() + position,
3545    //                 size,
3546    //             ))
3547    //         })
3548    // }
3549
3550    // async fn open_items(
3551    //     serialized_workspace: Option<SerializedWorkspace>,
3552    //     workspace: &WeakView<Workspace>,
3553    //     mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
3554    //     app_state: Arc<AppState>,
3555    //     mut cx: AsyncAppContext,
3556    // ) -> Result<Vec<Option<Result<Box<dyn ItemHandle>>>>> {
3557    //     let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
3558
3559    //     if let Some(serialized_workspace) = serialized_workspace {
3560    //         let workspace = workspace.clone();
3561    //         let restored_items = cx
3562    //             .update(|cx| {
3563    //                 Workspace::load_workspace(
3564    //                     workspace,
3565    //                     serialized_workspace,
3566    //                     project_paths_to_open
3567    //                         .iter()
3568    //                         .map(|(_, project_path)| project_path)
3569    //                         .cloned()
3570    //                         .collect(),
3571    //                     cx,
3572    //                 )
3573    //             })
3574    //             .await?;
3575
3576    //         let restored_project_paths = cx.read(|cx| {
3577    //             restored_items
3578    //                 .iter()
3579    //                 .filter_map(|item| item.as_ref()?.project_path(cx))
3580    //                 .collect::<HashSet<_>>()
3581    //         });
3582
3583    //         for restored_item in restored_items {
3584    //             opened_items.push(restored_item.map(Ok));
3585    //         }
3586
3587    //         project_paths_to_open
3588    //             .iter_mut()
3589    //             .for_each(|(_, project_path)| {
3590    //                 if let Some(project_path_to_open) = project_path {
3591    //                     if restored_project_paths.contains(project_path_to_open) {
3592    //                         *project_path = None;
3593    //                     }
3594    //                 }
3595    //             });
3596    //     } else {
3597    //         for _ in 0..project_paths_to_open.len() {
3598    //             opened_items.push(None);
3599    //         }
3600    //     }
3601    //     assert!(opened_items.len() == project_paths_to_open.len());
3602
3603    //     let tasks =
3604    //         project_paths_to_open
3605    //             .into_iter()
3606    //             .enumerate()
3607    //             .map(|(i, (abs_path, project_path))| {
3608    //                 let workspace = workspace.clone();
3609    //                 cx.spawn(|mut cx| {
3610    //                     let fs = app_state.fs.clone();
3611    //                     async move {
3612    //                         let file_project_path = project_path?;
3613    //                         if fs.is_file(&abs_path).await {
3614    //                             Some((
3615    //                                 i,
3616    //                                 workspace
3617    //                                     .update(&mut cx, |workspace, cx| {
3618    //                                         workspace.open_path(file_project_path, None, true, cx)
3619    //                                     })
3620    //                                     .log_err()?
3621    //                                     .await,
3622    //                             ))
3623    //                         } else {
3624    //                             None
3625    //                         }
3626    //                     }
3627    //                 })
3628    //             });
3629
3630    //     for maybe_opened_path in futures::future::join_all(tasks.into_iter())
3631    //         .await
3632    //         .into_iter()
3633    //     {
3634    //         if let Some((i, path_open_result)) = maybe_opened_path {
3635    //             opened_items[i] = Some(path_open_result);
3636    //         }
3637    //     }
3638
3639    //     Ok(opened_items)
3640    // }
3641
3642    // fn notify_of_new_dock(workspace: &WeakView<Workspace>, cx: &mut AsyncAppContext) {
3643    //     const NEW_PANEL_BLOG_POST: &str = "https://zed.dev/blog/new-panel-system";
3644    //     const NEW_DOCK_HINT_KEY: &str = "show_new_dock_key";
3645    //     const MESSAGE_ID: usize = 2;
3646
3647    //     if workspace
3648    //         .read_with(cx, |workspace, cx| {
3649    //             workspace.has_shown_notification_once::<MessageNotification>(MESSAGE_ID, cx)
3650    //         })
3651    //         .unwrap_or(false)
3652    //     {
3653    //         return;
3654    //     }
3655
3656    //     if db::kvp::KEY_VALUE_STORE
3657    //         .read_kvp(NEW_DOCK_HINT_KEY)
3658    //         .ok()
3659    //         .flatten()
3660    //         .is_some()
3661    //     {
3662    //         if !workspace
3663    //             .read_with(cx, |workspace, cx| {
3664    //                 workspace.has_shown_notification_once::<MessageNotification>(MESSAGE_ID, cx)
3665    //             })
3666    //             .unwrap_or(false)
3667    //         {
3668    //             cx.update(|cx| {
3669    //                 cx.update_global::<NotificationTracker, _, _>(|tracker, _| {
3670    //                     let entry = tracker
3671    //                         .entry(TypeId::of::<MessageNotification>())
3672    //                         .or_default();
3673    //                     if !entry.contains(&MESSAGE_ID) {
3674    //                         entry.push(MESSAGE_ID);
3675    //                     }
3676    //                 });
3677    //             });
3678    //         }
3679
3680    //         return;
3681    //     }
3682
3683    //     cx.spawn(|_| async move {
3684    //         db::kvp::KEY_VALUE_STORE
3685    //             .write_kvp(NEW_DOCK_HINT_KEY.to_string(), "seen".to_string())
3686    //             .await
3687    //             .ok();
3688    //     })
3689    //     .detach();
3690
3691    //     workspace
3692    //         .update(cx, |workspace, cx| {
3693    //             workspace.show_notification_once(2, cx, |cx| {
3694    //                 cx.add_view(|_| {
3695    //                     MessageNotification::new_element(|text, _| {
3696    //                         Text::new(
3697    //                             "Looking for the dock? Try ctrl-`!\nshift-escape now zooms your pane.",
3698    //                             text,
3699    //                         )
3700    //                         .with_custom_runs(vec![26..32, 34..46], |_, bounds, cx| {
3701    //                             let code_span_background_color = settings::get::<ThemeSettings>(cx)
3702    //                                 .theme
3703    //                                 .editor
3704    //                                 .document_highlight_read_background;
3705
3706    //                             cx.scene().push_quad(gpui::Quad {
3707    //                                 bounds,
3708    //                                 background: Some(code_span_background_color),
3709    //                                 border: Default::default(),
3710    //                                 corner_radii: (2.0).into(),
3711    //                             })
3712    //                         })
3713    //                         .into_any()
3714    //                     })
3715    //                     .with_click_message("Read more about the new panel system")
3716    //                     .on_click(|cx| cx.platform().open_url(NEW_PANEL_BLOG_POST))
3717    //                 })
3718    //             })
3719    //         })
3720    //         .ok();
3721}
3722
3723// fn notify_if_database_failed(workspace: &WeakView<Workspace>, cx: &mut AsyncAppContext) {
3724//     const REPORT_ISSUE_URL: &str ="https://github.com/zed-industries/community/issues/new?assignees=&labels=defect%2Ctriage&template=2_bug_report.yml";
3725
3726//     workspace
3727//         .update(cx, |workspace, cx| {
3728//             if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
3729//                 workspace.show_notification_once(0, cx, |cx| {
3730//                     cx.add_view(|_| {
3731//                         MessageNotification::new("Failed to load the database file.")
3732//                             .with_click_message("Click to let us know about this error")
3733//                             .on_click(|cx| cx.platform().open_url(REPORT_ISSUE_URL))
3734//                     })
3735//                 });
3736//             }
3737//         })
3738//         .log_err();
3739// }
3740
3741impl EventEmitter for Workspace {
3742    type Event = Event;
3743}
3744
3745// todo!()
3746// impl Entity for Workspace {
3747//     type Event = Event;
3748
3749//     fn release(&mut self, cx: &mut AppContext) {
3750//         self.app_state.workspace_store.update(cx, |store, _| {
3751//             store.workspaces.remove(&self.weak_self);
3752//         })
3753//     }
3754// }
3755
3756// impl View for Workspace {
3757//     fn ui_name() -> &'static str {
3758//         "Workspace"
3759//     }
3760
3761//     fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
3762//         let theme = theme::current(cx).clone();
3763//         Stack::new()
3764//             .with_child(
3765//                 Flex::column()
3766//                     .with_child(self.render_titlebar(&theme, cx))
3767//                     .with_child(
3768//                         Stack::new()
3769//                             .with_child({
3770//                                 let project = self.project.clone();
3771//                                 Flex::row()
3772//                                     .with_children(self.render_dock(DockPosition::Left, cx))
3773//                                     .with_child(
3774//                                         Flex::column()
3775//                                             .with_child(
3776//                                                 FlexItem::new(
3777//                                                     self.center.render(
3778//                                                         &project,
3779//                                                         &theme,
3780//                                                         &self.follower_states,
3781//                                                         self.active_call(),
3782//                                                         self.active_pane(),
3783//                                                         self.zoomed
3784//                                                             .as_ref()
3785//                                                             .and_then(|zoomed| zoomed.upgrade(cx))
3786//                                                             .as_ref(),
3787//                                                         &self.app_state,
3788//                                                         cx,
3789//                                                     ),
3790//                                                 )
3791//                                                 .flex(1., true),
3792//                                             )
3793//                                             .with_children(
3794//                                                 self.render_dock(DockPosition::Bottom, cx),
3795//                                             )
3796//                                             .flex(1., true),
3797//                                     )
3798//                                     .with_children(self.render_dock(DockPosition::Right, cx))
3799//                             })
3800//                             .with_child(Overlay::new(
3801//                                 Stack::new()
3802//                                     .with_children(self.zoomed.as_ref().and_then(|zoomed| {
3803//                                         enum ZoomBackground {}
3804//                                         let zoomed = zoomed.upgrade(cx)?;
3805
3806//                                         let mut foreground_style =
3807//                                             theme.workspace.zoomed_pane_foreground;
3808//                                         if let Some(zoomed_dock_position) = self.zoomed_position {
3809//                                             foreground_style =
3810//                                                 theme.workspace.zoomed_panel_foreground;
3811//                                             let margin = foreground_style.margin.top;
3812//                                             let border = foreground_style.border.top;
3813
3814//                                             // Only include a margin and border on the opposite side.
3815//                                             foreground_style.margin.top = 0.;
3816//                                             foreground_style.margin.left = 0.;
3817//                                             foreground_style.margin.bottom = 0.;
3818//                                             foreground_style.margin.right = 0.;
3819//                                             foreground_style.border.top = false;
3820//                                             foreground_style.border.left = false;
3821//                                             foreground_style.border.bottom = false;
3822//                                             foreground_style.border.right = false;
3823//                                             match zoomed_dock_position {
3824//                                                 DockPosition::Left => {
3825//                                                     foreground_style.margin.right = margin;
3826//                                                     foreground_style.border.right = border;
3827//                                                 }
3828//                                                 DockPosition::Right => {
3829//                                                     foreground_style.margin.left = margin;
3830//                                                     foreground_style.border.left = border;
3831//                                                 }
3832//                                                 DockPosition::Bottom => {
3833//                                                     foreground_style.margin.top = margin;
3834//                                                     foreground_style.border.top = border;
3835//                                                 }
3836//                                             }
3837//                                         }
3838
3839//                                         Some(
3840//                                             ChildView::new(&zoomed, cx)
3841//                                                 .contained()
3842//                                                 .with_style(foreground_style)
3843//                                                 .aligned()
3844//                                                 .contained()
3845//                                                 .with_style(theme.workspace.zoomed_background)
3846//                                                 .mouse::<ZoomBackground>(0)
3847//                                                 .capture_all()
3848//                                                 .on_down(
3849//                                                     MouseButton::Left,
3850//                                                     |_, this: &mut Self, cx| {
3851//                                                         this.zoom_out(cx);
3852//                                                     },
3853//                                                 ),
3854//                                         )
3855//                                     }))
3856//                                     .with_children(self.modal.as_ref().map(|modal| {
3857//                                         // Prevent clicks within the modal from falling
3858//                                         // through to the rest of the workspace.
3859//                                         enum ModalBackground {}
3860//                                         MouseEventHandler::new::<ModalBackground, _>(
3861//                                             0,
3862//                                             cx,
3863//                                             |_, cx| ChildView::new(modal.view.as_any(), cx),
3864//                                         )
3865//                                         .on_click(MouseButton::Left, |_, _, _| {})
3866//                                         .contained()
3867//                                         .with_style(theme.workspace.modal)
3868//                                         .aligned()
3869//                                         .top()
3870//                                     }))
3871//                                     .with_children(self.render_notifications(&theme.workspace, cx)),
3872//                             ))
3873//                             .provide_resize_bounds::<WorkspaceBounds>()
3874//                             .flex(1.0, true),
3875//                     )
3876//                     .with_child(ChildView::new(&self.status_bar, cx))
3877//                     .contained()
3878//                     .with_background_color(theme.workspace.background),
3879//             )
3880//             .with_children(DragAndDrop::render(cx))
3881//             .with_children(self.render_disconnected_overlay(cx))
3882//             .into_any_named("workspace")
3883//     }
3884
3885//     fn focus_in(&mut self, _: AnyViewHandle, cx: &mut ViewContext<Self>) {
3886//         if cx.is_self_focused() {
3887//             cx.focus(&self.active_pane);
3888//         }
3889//     }
3890
3891//     fn modifiers_changed(&mut self, e: &ModifiersChangedEvent, cx: &mut ViewContext<Self>) -> bool {
3892//         DragAndDrop::<Workspace>::update_modifiers(e.modifiers, cx)
3893//     }
3894// }
3895
3896impl WorkspaceStore {
3897    pub fn new(client: Arc<Client>, cx: &mut ModelContext<Self>) -> Self {
3898        // Self {
3899        //     workspaces: Default::default(),
3900        //     followers: Default::default(),
3901        //     _subscriptions: vec![
3902        //         client.add_request_handler(cx.weak_model(), Self::handle_follow),
3903        //         client.add_message_handler(cx.weak_model(), Self::handle_unfollow),
3904        //         client.add_message_handler(cx.weak_model(), Self::handle_update_followers),
3905        //     ],
3906        //     client,
3907        // }
3908        todo!()
3909    }
3910
3911    pub fn update_followers(
3912        &self,
3913        project_id: Option<u64>,
3914        update: proto::update_followers::Variant,
3915        cx: &AppContext,
3916    ) -> Option<()> {
3917        if !cx.has_global::<Model<ActiveCall>>() {
3918            return None;
3919        }
3920
3921        let room_id = ActiveCall::global(cx).read(cx).room()?.read(cx).id();
3922        let follower_ids: Vec<_> = self
3923            .followers
3924            .iter()
3925            .filter_map(|follower| {
3926                if follower.project_id == project_id || project_id.is_none() {
3927                    Some(follower.peer_id.into())
3928                } else {
3929                    None
3930                }
3931            })
3932            .collect();
3933        if follower_ids.is_empty() {
3934            return None;
3935        }
3936        self.client
3937            .send(proto::UpdateFollowers {
3938                room_id,
3939                project_id,
3940                follower_ids,
3941                variant: Some(update),
3942            })
3943            .log_err()
3944    }
3945
3946    // async fn handle_follow(
3947    //     this: Model<Self>,
3948    //     envelope: TypedEnvelope<proto::Follow>,
3949    //     _: Arc<Client>,
3950    //     mut cx: AsyncAppContext,
3951    // ) -> Result<proto::FollowResponse> {
3952    //     this.update(&mut cx, |this, cx| {
3953    //         let follower = Follower {
3954    //             project_id: envelope.payload.project_id,
3955    //             peer_id: envelope.original_sender_id()?,
3956    //         };
3957    //         let active_project = ActiveCall::global(cx)
3958    //             .read(cx)
3959    //             .location()
3960    //             .map(|project| project.id());
3961
3962    //         let mut response = proto::FollowResponse::default();
3963    //         for workspace in &this.workspaces {
3964    //             let Some(workspace) = workspace.upgrade(cx) else {
3965    //                 continue;
3966    //             };
3967
3968    //             workspace.update(cx.as_mut(), |workspace, cx| {
3969    //                 let handler_response = workspace.handle_follow(follower.project_id, cx);
3970    //                 if response.views.is_empty() {
3971    //                     response.views = handler_response.views;
3972    //                 } else {
3973    //                     response.views.extend_from_slice(&handler_response.views);
3974    //                 }
3975
3976    //                 if let Some(active_view_id) = handler_response.active_view_id.clone() {
3977    //                     if response.active_view_id.is_none()
3978    //                         || Some(workspace.project.id()) == active_project
3979    //                     {
3980    //                         response.active_view_id = Some(active_view_id);
3981    //                     }
3982    //                 }
3983    //             });
3984    //         }
3985
3986    //         if let Err(ix) = this.followers.binary_search(&follower) {
3987    //             this.followers.insert(ix, follower);
3988    //         }
3989
3990    //         Ok(response)
3991    //     })
3992    // }
3993
3994    async fn handle_unfollow(
3995        model: Model<Self>,
3996        envelope: TypedEnvelope<proto::Unfollow>,
3997        _: Arc<Client>,
3998        mut cx: AsyncAppContext,
3999    ) -> Result<()> {
4000        model.update(&mut cx, |this, _| {
4001            let follower = Follower {
4002                project_id: envelope.payload.project_id,
4003                peer_id: envelope.original_sender_id()?,
4004            };
4005            if let Ok(ix) = this.followers.binary_search(&follower) {
4006                this.followers.remove(ix);
4007            }
4008            Ok(())
4009        })?
4010    }
4011
4012    async fn handle_update_followers(
4013        this: Model<Self>,
4014        envelope: TypedEnvelope<proto::UpdateFollowers>,
4015        _: Arc<Client>,
4016        mut cx: AsyncWindowContext,
4017    ) -> Result<()> {
4018        // let leader_id = envelope.original_sender_id()?;
4019        // let update = envelope.payload;
4020
4021        // this.update(&mut cx, |this, cx| {
4022        //     for workspace in &this.workspaces {
4023        //         let Some(workspace) = workspace.upgrade() else {
4024        //             continue;
4025        //         };
4026        //         workspace.update(cx, |workspace, cx| {
4027        //             let project_id = workspace.project.read(cx).remote_id();
4028        //             if update.project_id != project_id && update.project_id.is_some() {
4029        //                 return;
4030        //             }
4031        //             workspace.handle_update_followers(leader_id, update.clone(), cx);
4032        //         });
4033        //     }
4034        //     Ok(())
4035        // })?
4036        todo!()
4037    }
4038}
4039
4040// impl Entity for WorkspaceStore {
4041//     type Event = ();
4042// }
4043
4044impl ViewId {
4045    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
4046        Ok(Self {
4047            creator: message
4048                .creator
4049                .ok_or_else(|| anyhow!("creator is missing"))?,
4050            id: message.id,
4051        })
4052    }
4053
4054    pub(crate) fn to_proto(&self) -> proto::ViewId {
4055        proto::ViewId {
4056            creator: Some(self.creator),
4057            id: self.id,
4058        }
4059    }
4060}
4061
4062// pub trait WorkspaceHandle {
4063//     fn file_project_paths(&self, cx: &AppContext) -> Vec<ProjectPath>;
4064// }
4065
4066// impl WorkspaceHandle for View<Workspace> {
4067//     fn file_project_paths(&self, cx: &AppContext) -> Vec<ProjectPath> {
4068//         self.read(cx)
4069//             .worktrees(cx)
4070//             .flat_map(|worktree| {
4071//                 let worktree_id = worktree.read(cx).id();
4072//                 worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
4073//                     worktree_id,
4074//                     path: f.path.clone(),
4075//                 })
4076//             })
4077//             .collect::<Vec<_>>()
4078//     }
4079// }
4080
4081// impl std::fmt::Debug for OpenPaths {
4082//     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
4083//         f.debug_struct("OpenPaths")
4084//             .field("paths", &self.paths)
4085//             .finish()
4086//     }
4087// }
4088
4089// pub struct WorkspaceCreated(pub WeakView<Workspace>);
4090
4091pub async fn activate_workspace_for_project(
4092    cx: &mut AsyncAppContext,
4093    predicate: impl Fn(&Project, &AppContext) -> bool + Send + 'static,
4094) -> Option<WindowHandle<Workspace>> {
4095    cx.run_on_main(move |cx| {
4096        for window in cx.windows() {
4097            let Some(workspace) = window.downcast::<Workspace>() else {
4098                continue;
4099            };
4100
4101            let predicate = cx
4102                .update_window_root(&workspace, |workspace, cx| {
4103                    let project = workspace.project.read(cx);
4104                    if predicate(project, cx) {
4105                        cx.activate_window();
4106                        true
4107                    } else {
4108                        false
4109                    }
4110                })
4111                .log_err()
4112                .unwrap_or(false);
4113
4114            if predicate {
4115                return Some(workspace);
4116            }
4117        }
4118
4119        None
4120    })
4121    .ok()?
4122    .await
4123}
4124
4125// pub async fn last_opened_workspace_paths() -> Option<WorkspaceLocation> {
4126//     DB.last_workspace().await.log_err().flatten()
4127// }
4128
4129// async fn join_channel_internal(
4130//     channel_id: u64,
4131//     app_state: &Arc<AppState>,
4132//     requesting_window: Option<WindowHandle<Workspace>>,
4133//     active_call: &ModelHandle<ActiveCall>,
4134//     cx: &mut AsyncAppContext,
4135// ) -> Result<bool> {
4136//     let (should_prompt, open_room) = active_call.read_with(cx, |active_call, cx| {
4137//         let Some(room) = active_call.room().map(|room| room.read(cx)) else {
4138//             return (false, None);
4139//         };
4140
4141//         let already_in_channel = room.channel_id() == Some(channel_id);
4142//         let should_prompt = room.is_sharing_project()
4143//             && room.remote_participants().len() > 0
4144//             && !already_in_channel;
4145//         let open_room = if already_in_channel {
4146//             active_call.room().cloned()
4147//         } else {
4148//             None
4149//         };
4150//         (should_prompt, open_room)
4151//     });
4152
4153//     if let Some(room) = open_room {
4154//         let task = room.update(cx, |room, cx| {
4155//             if let Some((project, host)) = room.most_active_project(cx) {
4156//                 return Some(join_remote_project(project, host, app_state.clone(), cx));
4157//             }
4158
4159//             None
4160//         });
4161//         if let Some(task) = task {
4162//             task.await?;
4163//         }
4164//         return anyhow::Ok(true);
4165//     }
4166
4167//     if should_prompt {
4168//         if let Some(workspace) = requesting_window {
4169//             if let Some(window) = workspace.update(cx, |cx| cx.window()) {
4170//                 let answer = window.prompt(
4171//                     PromptLevel::Warning,
4172//                     "Leaving this call will unshare your current project.\nDo you want to switch channels?",
4173//                     &["Yes, Join Channel", "Cancel"],
4174//                     cx,
4175//                 );
4176
4177//                 if let Some(mut answer) = answer {
4178//                     if answer.next().await == Some(1) {
4179//                         return Ok(false);
4180//                     }
4181//                 }
4182//             } else {
4183//                 return Ok(false); // unreachable!() hopefully
4184//             }
4185//         } else {
4186//             return Ok(false); // unreachable!() hopefully
4187//         }
4188//     }
4189
4190//     let client = cx.read(|cx| active_call.read(cx).client());
4191
4192//     let mut client_status = client.status();
4193
4194//     // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
4195//     'outer: loop {
4196//         let Some(status) = client_status.recv().await else {
4197//             return Err(anyhow!("error connecting"));
4198//         };
4199
4200//         match status {
4201//             Status::Connecting
4202//             | Status::Authenticating
4203//             | Status::Reconnecting
4204//             | Status::Reauthenticating => continue,
4205//             Status::Connected { .. } => break 'outer,
4206//             Status::SignedOut => return Err(anyhow!("not signed in")),
4207//             Status::UpgradeRequired => return Err(anyhow!("zed is out of date")),
4208//             Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
4209//                 return Err(anyhow!("zed is offline"))
4210//             }
4211//         }
4212//     }
4213
4214//     let room = active_call
4215//         .update(cx, |active_call, cx| {
4216//             active_call.join_channel(channel_id, cx)
4217//         })
4218//         .await?;
4219
4220//     room.update(cx, |room, _| room.room_update_completed())
4221//         .await;
4222
4223//     let task = room.update(cx, |room, cx| {
4224//         if let Some((project, host)) = room.most_active_project(cx) {
4225//             return Some(join_remote_project(project, host, app_state.clone(), cx));
4226//         }
4227
4228//         None
4229//     });
4230//     if let Some(task) = task {
4231//         task.await?;
4232//         return anyhow::Ok(true);
4233//     }
4234//     anyhow::Ok(false)
4235// }
4236
4237// pub fn join_channel(
4238//     channel_id: u64,
4239//     app_state: Arc<AppState>,
4240//     requesting_window: Option<WindowHandle<Workspace>>,
4241//     cx: &mut AppContext,
4242// ) -> Task<Result<()>> {
4243//     let active_call = ActiveCall::global(cx);
4244//     cx.spawn(|mut cx| async move {
4245//         let result = join_channel_internal(
4246//             channel_id,
4247//             &app_state,
4248//             requesting_window,
4249//             &active_call,
4250//             &mut cx,
4251//         )
4252//         .await;
4253
4254//         // join channel succeeded, and opened a window
4255//         if matches!(result, Ok(true)) {
4256//             return anyhow::Ok(());
4257//         }
4258
4259//         if requesting_window.is_some() {
4260//             return anyhow::Ok(());
4261//         }
4262
4263//         // find an existing workspace to focus and show call controls
4264//         let mut active_window = activate_any_workspace_window(&mut cx);
4265//         if active_window.is_none() {
4266//             // no open workspaces, make one to show the error in (blergh)
4267//             cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), requesting_window, cx))
4268//                 .await;
4269//         }
4270
4271//         active_window = activate_any_workspace_window(&mut cx);
4272//         if active_window.is_none() {
4273//             return result.map(|_| ()); // unreachable!() assuming new_local always opens a window
4274//         }
4275
4276//         if let Err(err) = result {
4277//             let prompt = active_window.unwrap().prompt(
4278//                 PromptLevel::Critical,
4279//                 &format!("Failed to join channel: {}", err),
4280//                 &["Ok"],
4281//                 &mut cx,
4282//             );
4283//             if let Some(mut prompt) = prompt {
4284//                 prompt.next().await;
4285//             } else {
4286//                 return Err(err);
4287//             }
4288//         }
4289
4290//         // return ok, we showed the error to the user.
4291//         return anyhow::Ok(());
4292//     })
4293// }
4294
4295// pub fn activate_any_workspace_window(cx: &mut AsyncAppContext) -> Option<AnyWindowHandle> {
4296//     for window in cx.windows() {
4297//         let found = window.update(cx, |cx| {
4298//             let is_workspace = cx.root_view().clone().downcast::<Workspace>().is_some();
4299//             if is_workspace {
4300//                 cx.activate_window();
4301//             }
4302//             is_workspace
4303//         });
4304//         if found == Some(true) {
4305//             return Some(window);
4306//         }
4307//     }
4308//     None
4309// }
4310
4311#[allow(clippy::type_complexity)]
4312pub fn open_paths(
4313    abs_paths: &[PathBuf],
4314    app_state: &Arc<AppState>,
4315    requesting_window: Option<WindowHandle<Workspace>>,
4316    cx: &mut AppContext,
4317) -> Task<
4318    anyhow::Result<(
4319        WindowHandle<Workspace>,
4320        Vec<Option<Result<Box<dyn ItemHandle>, anyhow::Error>>>,
4321    )>,
4322> {
4323    let app_state = app_state.clone();
4324    let abs_paths = abs_paths.to_vec();
4325    cx.spawn(move |mut cx| async move {
4326        // Open paths in existing workspace if possible
4327        let existing = activate_workspace_for_project(&mut cx, move |project, cx| {
4328            project.contains_paths(&abs_paths, cx)
4329        })
4330        .await;
4331
4332        if let Some(existing) = existing {
4333            // // Ok((
4334            //     existing.clone(),
4335            //     cx.update_window_root(&existing, |workspace, cx| {
4336            //         workspace.open_paths(abs_paths, true, cx)
4337            //     })?
4338            //     .await,
4339            // ))
4340            todo!()
4341        } else {
4342            // Ok(cx
4343            //     .update(|cx| {
4344            //         Workspace::new_local(abs_paths, app_state.clone(), requesting_window, cx)
4345            //     })
4346            //     .await)
4347            todo!()
4348        }
4349    })
4350}
4351
4352// pub fn open_new(
4353//     app_state: &Arc<AppState>,
4354//     cx: &mut AppContext,
4355//     init: impl FnOnce(&mut Workspace, &mut ViewContext<Workspace>) + 'static,
4356// ) -> Task<()> {
4357//     let task = Workspace::new_local(Vec::new(), app_state.clone(), None, cx);
4358//     cx.spawn(|mut cx| async move {
4359//         let (workspace, opened_paths) = task.await;
4360
4361//         workspace
4362//             .update(&mut cx, |workspace, cx| {
4363//                 if opened_paths.is_empty() {
4364//                     init(workspace, cx)
4365//                 }
4366//             })
4367//             .log_err();
4368//     })
4369// }
4370
4371// pub fn create_and_open_local_file(
4372//     path: &'static Path,
4373//     cx: &mut ViewContext<Workspace>,
4374//     default_content: impl 'static + Send + FnOnce() -> Rope,
4375// ) -> Task<Result<Box<dyn ItemHandle>>> {
4376//     cx.spawn(|workspace, mut cx| async move {
4377//         let fs = workspace.read_with(&cx, |workspace, _| workspace.app_state().fs.clone())?;
4378//         if !fs.is_file(path).await {
4379//             fs.create_file(path, Default::default()).await?;
4380//             fs.save(path, &default_content(), Default::default())
4381//                 .await?;
4382//         }
4383
4384//         let mut items = workspace
4385//             .update(&mut cx, |workspace, cx| {
4386//                 workspace.with_local_workspace(cx, |workspace, cx| {
4387//                     workspace.open_paths(vec![path.to_path_buf()], false, cx)
4388//                 })
4389//             })?
4390//             .await?
4391//             .await;
4392
4393//         let item = items.pop().flatten();
4394//         item.ok_or_else(|| anyhow!("path {path:?} is not a file"))?
4395//     })
4396// }
4397
4398// pub fn join_remote_project(
4399//     project_id: u64,
4400//     follow_user_id: u64,
4401//     app_state: Arc<AppState>,
4402//     cx: &mut AppContext,
4403// ) -> Task<Result<()>> {
4404//     cx.spawn(|mut cx| async move {
4405//         let windows = cx.windows();
4406//         let existing_workspace = windows.into_iter().find_map(|window| {
4407//             window.downcast::<Workspace>().and_then(|window| {
4408//                 window
4409//                     .read_root_with(&cx, |workspace, cx| {
4410//                         if workspace.project().read(cx).remote_id() == Some(project_id) {
4411//                             Some(cx.handle().downgrade())
4412//                         } else {
4413//                             None
4414//                         }
4415//                     })
4416//                     .unwrap_or(None)
4417//             })
4418//         });
4419
4420//         let workspace = if let Some(existing_workspace) = existing_workspace {
4421//             existing_workspace
4422//         } else {
4423//             let active_call = cx.read(ActiveCall::global);
4424//             let room = active_call
4425//                 .read_with(&cx, |call, _| call.room().cloned())
4426//                 .ok_or_else(|| anyhow!("not in a call"))?;
4427//             let project = room
4428//                 .update(&mut cx, |room, cx| {
4429//                     room.join_project(
4430//                         project_id,
4431//                         app_state.languages.clone(),
4432//                         app_state.fs.clone(),
4433//                         cx,
4434//                     )
4435//                 })
4436//                 .await?;
4437
4438//             let window_bounds_override = window_bounds_env_override(&cx);
4439//             let window = cx.add_window(
4440//                 (app_state.build_window_options)(
4441//                     window_bounds_override,
4442//                     None,
4443//                     cx.platform().as_ref(),
4444//                 ),
4445//                 |cx| Workspace::new(0, project, app_state.clone(), cx),
4446//             );
4447//             let workspace = window.root(&cx).unwrap();
4448//             (app_state.initialize_workspace)(
4449//                 workspace.downgrade(),
4450//                 false,
4451//                 app_state.clone(),
4452//                 cx.clone(),
4453//             )
4454//             .await
4455//             .log_err();
4456
4457//             workspace.downgrade()
4458//         };
4459
4460//         workspace.window().activate(&mut cx);
4461//         cx.platform().activate(true);
4462
4463//         workspace.update(&mut cx, |workspace, cx| {
4464//             if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
4465//                 let follow_peer_id = room
4466//                     .read(cx)
4467//                     .remote_participants()
4468//                     .iter()
4469//                     .find(|(_, participant)| participant.user.id == follow_user_id)
4470//                     .map(|(_, p)| p.peer_id)
4471//                     .or_else(|| {
4472//                         // If we couldn't follow the given user, follow the host instead.
4473//                         let collaborator = workspace
4474//                             .project()
4475//                             .read(cx)
4476//                             .collaborators()
4477//                             .values()
4478//                             .find(|collaborator| collaborator.replica_id == 0)?;
4479//                         Some(collaborator.peer_id)
4480//                     });
4481
4482//                 if let Some(follow_peer_id) = follow_peer_id {
4483//                     workspace
4484//                         .follow(follow_peer_id, cx)
4485//                         .map(|follow| follow.detach_and_log_err(cx));
4486//                 }
4487//             }
4488//         })?;
4489
4490//         anyhow::Ok(())
4491//     })
4492// }
4493
4494// pub fn restart(_: &Restart, cx: &mut AppContext) {
4495//     let should_confirm = settings::get::<WorkspaceSettings>(cx).confirm_quit;
4496//     cx.spawn(|mut cx| async move {
4497//         let mut workspace_windows = cx
4498//             .windows()
4499//             .into_iter()
4500//             .filter_map(|window| window.downcast::<Workspace>())
4501//             .collect::<Vec<_>>();
4502
4503//         // If multiple windows have unsaved changes, and need a save prompt,
4504//         // prompt in the active window before switching to a different window.
4505//         workspace_windows.sort_by_key(|window| window.is_active(&cx) == Some(false));
4506
4507//         if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
4508//             let answer = window.prompt(
4509//                 PromptLevel::Info,
4510//                 "Are you sure you want to restart?",
4511//                 &["Restart", "Cancel"],
4512//                 &mut cx,
4513//             );
4514
4515//             if let Some(mut answer) = answer {
4516//                 let answer = answer.next().await;
4517//                 if answer != Some(0) {
4518//                     return Ok(());
4519//                 }
4520//             }
4521//         }
4522
4523//         // If the user cancels any save prompt, then keep the app open.
4524//         for window in workspace_windows {
4525//             if let Some(should_close) = window.update_root(&mut cx, |workspace, cx| {
4526//                 workspace.prepare_to_close(true, cx)
4527//             }) {
4528//                 if !should_close.await? {
4529//                     return Ok(());
4530//                 }
4531//             }
4532//         }
4533//         cx.platform().restart();
4534//         anyhow::Ok(())
4535//     })
4536//     .detach_and_log_err(cx);
4537// }
4538
4539// fn parse_pixel_position_env_var(value: &str) -> Option<Vector2F> {
4540//     let mut parts = value.split(',');
4541//     let width: usize = parts.next()?.parse().ok()?;
4542//     let height: usize = parts.next()?.parse().ok()?;
4543//     Some(vec2f(width as f32, height as f32))
4544// }
4545
4546// #[cfg(test)]
4547// mod tests {
4548//     use super::*;
4549//     use crate::{
4550//         dock::test::{TestPanel, TestPanelEvent},
4551//         item::test::{TestItem, TestItemEvent, TestProjectItem},
4552//     };
4553//     use fs::FakeFs;
4554//     use gpui::{executor::Deterministic, test::EmptyView, TestAppContext};
4555//     use project::{Project, ProjectEntryId};
4556//     use serde_json::json;
4557//     use settings::SettingsStore;
4558//     use std::{cell::RefCell, rc::Rc};
4559
4560//     #[gpui::test]
4561//     async fn test_tab_disambiguation(cx: &mut TestAppContext) {
4562//         init_test(cx);
4563
4564//         let fs = FakeFs::new(cx.background());
4565//         let project = Project::test(fs, [], cx).await;
4566//         let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
4567//         let workspace = window.root(cx);
4568
4569//         // Adding an item with no ambiguity renders the tab without detail.
4570//         let item1 = window.add_view(cx, |_| {
4571//             let mut item = TestItem::new();
4572//             item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
4573//             item
4574//         });
4575//         workspace.update(cx, |workspace, cx| {
4576//             workspace.add_item(Box::new(item1.clone()), cx);
4577//         });
4578//         item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), None));
4579
4580//         // Adding an item that creates ambiguity increases the level of detail on
4581//         // both tabs.
4582//         let item2 = window.add_view(cx, |_| {
4583//             let mut item = TestItem::new();
4584//             item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
4585//             item
4586//         });
4587//         workspace.update(cx, |workspace, cx| {
4588//             workspace.add_item(Box::new(item2.clone()), cx);
4589//         });
4590//         item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
4591//         item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
4592
4593//         // Adding an item that creates ambiguity increases the level of detail only
4594//         // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
4595//         // we stop at the highest detail available.
4596//         let item3 = window.add_view(cx, |_| {
4597//             let mut item = TestItem::new();
4598//             item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
4599//             item
4600//         });
4601//         workspace.update(cx, |workspace, cx| {
4602//             workspace.add_item(Box::new(item3.clone()), cx);
4603//         });
4604//         item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
4605//         item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
4606//         item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
4607//     }
4608
4609//     #[gpui::test]
4610//     async fn test_tracking_active_path(cx: &mut TestAppContext) {
4611//         init_test(cx);
4612
4613//         let fs = FakeFs::new(cx.background());
4614//         fs.insert_tree(
4615//             "/root1",
4616//             json!({
4617//                 "one.txt": "",
4618//                 "two.txt": "",
4619//             }),
4620//         )
4621//         .await;
4622//         fs.insert_tree(
4623//             "/root2",
4624//             json!({
4625//                 "three.txt": "",
4626//             }),
4627//         )
4628//         .await;
4629
4630//         let project = Project::test(fs, ["root1".as_ref()], cx).await;
4631//         let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
4632//         let workspace = window.root(cx);
4633//         let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
4634//         let worktree_id = project.read_with(cx, |project, cx| {
4635//             project.worktrees(cx).next().unwrap().read(cx).id()
4636//         });
4637
4638//         let item1 = window.add_view(cx, |cx| {
4639//             TestItem::new().with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
4640//         });
4641//         let item2 = window.add_view(cx, |cx| {
4642//             TestItem::new().with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
4643//         });
4644
4645//         // Add an item to an empty pane
4646//         workspace.update(cx, |workspace, cx| workspace.add_item(Box::new(item1), cx));
4647//         project.read_with(cx, |project, cx| {
4648//             assert_eq!(
4649//                 project.active_entry(),
4650//                 project
4651//                     .entry_for_path(&(worktree_id, "one.txt").into(), cx)
4652//                     .map(|e| e.id)
4653//             );
4654//         });
4655//         assert_eq!(window.current_title(cx).as_deref(), Some("one.txt β€” root1"));
4656
4657//         // Add a second item to a non-empty pane
4658//         workspace.update(cx, |workspace, cx| workspace.add_item(Box::new(item2), cx));
4659//         assert_eq!(window.current_title(cx).as_deref(), Some("two.txt β€” root1"));
4660//         project.read_with(cx, |project, cx| {
4661//             assert_eq!(
4662//                 project.active_entry(),
4663//                 project
4664//                     .entry_for_path(&(worktree_id, "two.txt").into(), cx)
4665//                     .map(|e| e.id)
4666//             );
4667//         });
4668
4669//         // Close the active item
4670//         pane.update(cx, |pane, cx| {
4671//             pane.close_active_item(&Default::default(), cx).unwrap()
4672//         })
4673//         .await
4674//         .unwrap();
4675//         assert_eq!(window.current_title(cx).as_deref(), Some("one.txt β€” root1"));
4676//         project.read_with(cx, |project, cx| {
4677//             assert_eq!(
4678//                 project.active_entry(),
4679//                 project
4680//                     .entry_for_path(&(worktree_id, "one.txt").into(), cx)
4681//                     .map(|e| e.id)
4682//             );
4683//         });
4684
4685//         // Add a project folder
4686//         project
4687//             .update(cx, |project, cx| {
4688//                 project.find_or_create_local_worktree("/root2", true, cx)
4689//             })
4690//             .await
4691//             .unwrap();
4692//         assert_eq!(
4693//             window.current_title(cx).as_deref(),
4694//             Some("one.txt β€” root1, root2")
4695//         );
4696
4697//         // Remove a project folder
4698//         project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
4699//         assert_eq!(window.current_title(cx).as_deref(), Some("one.txt β€” root2"));
4700//     }
4701
4702//     #[gpui::test]
4703//     async fn test_close_window(cx: &mut TestAppContext) {
4704//         init_test(cx);
4705
4706//         let fs = FakeFs::new(cx.background());
4707//         fs.insert_tree("/root", json!({ "one": "" })).await;
4708
4709//         let project = Project::test(fs, ["root".as_ref()], cx).await;
4710//         let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
4711//         let workspace = window.root(cx);
4712
4713//         // When there are no dirty items, there's nothing to do.
4714//         let item1 = window.add_view(cx, |_| TestItem::new());
4715//         workspace.update(cx, |w, cx| w.add_item(Box::new(item1.clone()), cx));
4716//         let task = workspace.update(cx, |w, cx| w.prepare_to_close(false, cx));
4717//         assert!(task.await.unwrap());
4718
4719//         // When there are dirty untitled items, prompt to save each one. If the user
4720//         // cancels any prompt, then abort.
4721//         let item2 = window.add_view(cx, |_| TestItem::new().with_dirty(true));
4722//         let item3 = window.add_view(cx, |cx| {
4723//             TestItem::new()
4724//                 .with_dirty(true)
4725//                 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
4726//         });
4727//         workspace.update(cx, |w, cx| {
4728//             w.add_item(Box::new(item2.clone()), cx);
4729//             w.add_item(Box::new(item3.clone()), cx);
4730//         });
4731//         let task = workspace.update(cx, |w, cx| w.prepare_to_close(false, cx));
4732//         cx.foreground().run_until_parked();
4733//         window.simulate_prompt_answer(2, cx); // cancel save all
4734//         cx.foreground().run_until_parked();
4735//         window.simulate_prompt_answer(2, cx); // cancel save all
4736//         cx.foreground().run_until_parked();
4737//         assert!(!window.has_pending_prompt(cx));
4738//         assert!(!task.await.unwrap());
4739//     }
4740
4741//     #[gpui::test]
4742//     async fn test_close_pane_items(cx: &mut TestAppContext) {
4743//         init_test(cx);
4744
4745//         let fs = FakeFs::new(cx.background());
4746
4747//         let project = Project::test(fs, None, cx).await;
4748//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
4749//         let workspace = window.root(cx);
4750
4751//         let item1 = window.add_view(cx, |cx| {
4752//             TestItem::new()
4753//                 .with_dirty(true)
4754//                 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
4755//         });
4756//         let item2 = window.add_view(cx, |cx| {
4757//             TestItem::new()
4758//                 .with_dirty(true)
4759//                 .with_conflict(true)
4760//                 .with_project_items(&[TestProjectItem::new(2, "2.txt", cx)])
4761//         });
4762//         let item3 = window.add_view(cx, |cx| {
4763//             TestItem::new()
4764//                 .with_dirty(true)
4765//                 .with_conflict(true)
4766//                 .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
4767//         });
4768//         let item4 = window.add_view(cx, |cx| {
4769//             TestItem::new()
4770//                 .with_dirty(true)
4771//                 .with_project_items(&[TestProjectItem::new_untitled(cx)])
4772//         });
4773//         let pane = workspace.update(cx, |workspace, cx| {
4774//             workspace.add_item(Box::new(item1.clone()), cx);
4775//             workspace.add_item(Box::new(item2.clone()), cx);
4776//             workspace.add_item(Box::new(item3.clone()), cx);
4777//             workspace.add_item(Box::new(item4.clone()), cx);
4778//             workspace.active_pane().clone()
4779//         });
4780
4781//         let close_items = pane.update(cx, |pane, cx| {
4782//             pane.activate_item(1, true, true, cx);
4783//             assert_eq!(pane.active_item().unwrap().id(), item2.id());
4784//             let item1_id = item1.id();
4785//             let item3_id = item3.id();
4786//             let item4_id = item4.id();
4787//             pane.close_items(cx, SaveIntent::Close, move |id| {
4788//                 [item1_id, item3_id, item4_id].contains(&id)
4789//             })
4790//         });
4791//         cx.foreground().run_until_parked();
4792
4793//         assert!(window.has_pending_prompt(cx));
4794//         // Ignore "Save all" prompt
4795//         window.simulate_prompt_answer(2, cx);
4796//         cx.foreground().run_until_parked();
4797//         // There's a prompt to save item 1.
4798//         pane.read_with(cx, |pane, _| {
4799//             assert_eq!(pane.items_len(), 4);
4800//             assert_eq!(pane.active_item().unwrap().id(), item1.id());
4801//         });
4802//         // Confirm saving item 1.
4803//         window.simulate_prompt_answer(0, cx);
4804//         cx.foreground().run_until_parked();
4805
4806//         // Item 1 is saved. There's a prompt to save item 3.
4807//         pane.read_with(cx, |pane, cx| {
4808//             assert_eq!(item1.read(cx).save_count, 1);
4809//             assert_eq!(item1.read(cx).save_as_count, 0);
4810//             assert_eq!(item1.read(cx).reload_count, 0);
4811//             assert_eq!(pane.items_len(), 3);
4812//             assert_eq!(pane.active_item().unwrap().id(), item3.id());
4813//         });
4814//         assert!(window.has_pending_prompt(cx));
4815
4816//         // Cancel saving item 3.
4817//         window.simulate_prompt_answer(1, cx);
4818//         cx.foreground().run_until_parked();
4819
4820//         // Item 3 is reloaded. There's a prompt to save item 4.
4821//         pane.read_with(cx, |pane, cx| {
4822//             assert_eq!(item3.read(cx).save_count, 0);
4823//             assert_eq!(item3.read(cx).save_as_count, 0);
4824//             assert_eq!(item3.read(cx).reload_count, 1);
4825//             assert_eq!(pane.items_len(), 2);
4826//             assert_eq!(pane.active_item().unwrap().id(), item4.id());
4827//         });
4828//         assert!(window.has_pending_prompt(cx));
4829
4830//         // Confirm saving item 4.
4831//         window.simulate_prompt_answer(0, cx);
4832//         cx.foreground().run_until_parked();
4833
4834//         // There's a prompt for a path for item 4.
4835//         cx.simulate_new_path_selection(|_| Some(Default::default()));
4836//         close_items.await.unwrap();
4837
4838//         // The requested items are closed.
4839//         pane.read_with(cx, |pane, cx| {
4840//             assert_eq!(item4.read(cx).save_count, 0);
4841//             assert_eq!(item4.read(cx).save_as_count, 1);
4842//             assert_eq!(item4.read(cx).reload_count, 0);
4843//             assert_eq!(pane.items_len(), 1);
4844//             assert_eq!(pane.active_item().unwrap().id(), item2.id());
4845//         });
4846//     }
4847
4848//     #[gpui::test]
4849//     async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
4850//         init_test(cx);
4851
4852//         let fs = FakeFs::new(cx.background());
4853
4854//         let project = Project::test(fs, [], cx).await;
4855//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
4856//         let workspace = window.root(cx);
4857
4858//         // Create several workspace items with single project entries, and two
4859//         // workspace items with multiple project entries.
4860//         let single_entry_items = (0..=4)
4861//             .map(|project_entry_id| {
4862//                 window.add_view(cx, |cx| {
4863//                     TestItem::new()
4864//                         .with_dirty(true)
4865//                         .with_project_items(&[TestProjectItem::new(
4866//                             project_entry_id,
4867//                             &format!("{project_entry_id}.txt"),
4868//                             cx,
4869//                         )])
4870//                 })
4871//             })
4872//             .collect::<Vec<_>>();
4873//         let item_2_3 = window.add_view(cx, |cx| {
4874//             TestItem::new()
4875//                 .with_dirty(true)
4876//                 .with_singleton(false)
4877//                 .with_project_items(&[
4878//                     single_entry_items[2].read(cx).project_items[0].clone(),
4879//                     single_entry_items[3].read(cx).project_items[0].clone(),
4880//                 ])
4881//         });
4882//         let item_3_4 = window.add_view(cx, |cx| {
4883//             TestItem::new()
4884//                 .with_dirty(true)
4885//                 .with_singleton(false)
4886//                 .with_project_items(&[
4887//                     single_entry_items[3].read(cx).project_items[0].clone(),
4888//                     single_entry_items[4].read(cx).project_items[0].clone(),
4889//                 ])
4890//         });
4891
4892//         // Create two panes that contain the following project entries:
4893//         //   left pane:
4894//         //     multi-entry items:   (2, 3)
4895//         //     single-entry items:  0, 1, 2, 3, 4
4896//         //   right pane:
4897//         //     single-entry items:  1
4898//         //     multi-entry items:   (3, 4)
4899//         let left_pane = workspace.update(cx, |workspace, cx| {
4900//             let left_pane = workspace.active_pane().clone();
4901//             workspace.add_item(Box::new(item_2_3.clone()), cx);
4902//             for item in single_entry_items {
4903//                 workspace.add_item(Box::new(item), cx);
4904//             }
4905//             left_pane.update(cx, |pane, cx| {
4906//                 pane.activate_item(2, true, true, cx);
4907//             });
4908
4909//             workspace
4910//                 .split_and_clone(left_pane.clone(), SplitDirection::Right, cx)
4911//                 .unwrap();
4912
4913//             left_pane
4914//         });
4915
4916//         //Need to cause an effect flush in order to respect new focus
4917//         workspace.update(cx, |workspace, cx| {
4918//             workspace.add_item(Box::new(item_3_4.clone()), cx);
4919//             cx.focus(&left_pane);
4920//         });
4921
4922//         // When closing all of the items in the left pane, we should be prompted twice:
4923//         // once for project entry 0, and once for project entry 2. After those two
4924//         // prompts, the task should complete.
4925
4926//         let close = left_pane.update(cx, |pane, cx| {
4927//             pane.close_items(cx, SaveIntent::Close, move |_| true)
4928//         });
4929//         cx.foreground().run_until_parked();
4930//         // Discard "Save all" prompt
4931//         window.simulate_prompt_answer(2, cx);
4932
4933//         cx.foreground().run_until_parked();
4934//         left_pane.read_with(cx, |pane, cx| {
4935//             assert_eq!(
4936//                 pane.active_item().unwrap().project_entry_ids(cx).as_slice(),
4937//                 &[ProjectEntryId::from_proto(0)]
4938//             );
4939//         });
4940//         window.simulate_prompt_answer(0, cx);
4941
4942//         cx.foreground().run_until_parked();
4943//         left_pane.read_with(cx, |pane, cx| {
4944//             assert_eq!(
4945//                 pane.active_item().unwrap().project_entry_ids(cx).as_slice(),
4946//                 &[ProjectEntryId::from_proto(2)]
4947//             );
4948//         });
4949//         window.simulate_prompt_answer(0, cx);
4950
4951//         cx.foreground().run_until_parked();
4952//         close.await.unwrap();
4953//         left_pane.read_with(cx, |pane, _| {
4954//             assert_eq!(pane.items_len(), 0);
4955//         });
4956//     }
4957
4958//     #[gpui::test]
4959//     async fn test_autosave(deterministic: Arc<Deterministic>, cx: &mut gpui::TestAppContext) {
4960//         init_test(cx);
4961
4962//         let fs = FakeFs::new(cx.background());
4963
4964//         let project = Project::test(fs, [], cx).await;
4965//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
4966//         let workspace = window.root(cx);
4967//         let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
4968
4969//         let item = window.add_view(cx, |cx| {
4970//             TestItem::new().with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
4971//         });
4972//         let item_id = item.id();
4973//         workspace.update(cx, |workspace, cx| {
4974//             workspace.add_item(Box::new(item.clone()), cx);
4975//         });
4976
4977//         // Autosave on window change.
4978//         item.update(cx, |item, cx| {
4979//             cx.update_global(|settings: &mut SettingsStore, cx| {
4980//                 settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
4981//                     settings.autosave = Some(AutosaveSetting::OnWindowChange);
4982//                 })
4983//             });
4984//             item.is_dirty = true;
4985//         });
4986
4987//         // Deactivating the window saves the file.
4988//         window.simulate_deactivation(cx);
4989//         deterministic.run_until_parked();
4990//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
4991
4992//         // Autosave on focus change.
4993//         item.update(cx, |item, cx| {
4994//             cx.focus_self();
4995//             cx.update_global(|settings: &mut SettingsStore, cx| {
4996//                 settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
4997//                     settings.autosave = Some(AutosaveSetting::OnFocusChange);
4998//                 })
4999//             });
5000//             item.is_dirty = true;
5001//         });
5002
5003//         // Blurring the item saves the file.
5004//         item.update(cx, |_, cx| cx.blur());
5005//         deterministic.run_until_parked();
5006//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
5007
5008//         // Deactivating the window still saves the file.
5009//         window.simulate_activation(cx);
5010//         item.update(cx, |item, cx| {
5011//             cx.focus_self();
5012//             item.is_dirty = true;
5013//         });
5014//         window.simulate_deactivation(cx);
5015
5016//         deterministic.run_until_parked();
5017//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
5018
5019//         // Autosave after delay.
5020//         item.update(cx, |item, cx| {
5021//             cx.update_global(|settings: &mut SettingsStore, cx| {
5022//                 settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
5023//                     settings.autosave = Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
5024//                 })
5025//             });
5026//             item.is_dirty = true;
5027//             cx.emit(TestItemEvent::Edit);
5028//         });
5029
5030//         // Delay hasn't fully expired, so the file is still dirty and unsaved.
5031//         deterministic.advance_clock(Duration::from_millis(250));
5032//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
5033
5034//         // After delay expires, the file is saved.
5035//         deterministic.advance_clock(Duration::from_millis(250));
5036//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
5037
5038//         // Autosave on focus change, ensuring closing the tab counts as such.
5039//         item.update(cx, |item, cx| {
5040//             cx.update_global(|settings: &mut SettingsStore, cx| {
5041//                 settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
5042//                     settings.autosave = Some(AutosaveSetting::OnFocusChange);
5043//                 })
5044//             });
5045//             item.is_dirty = true;
5046//         });
5047
5048//         pane.update(cx, |pane, cx| {
5049//             pane.close_items(cx, SaveIntent::Close, move |id| id == item_id)
5050//         })
5051//         .await
5052//         .unwrap();
5053//         assert!(!window.has_pending_prompt(cx));
5054//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
5055
5056//         // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
5057//         workspace.update(cx, |workspace, cx| {
5058//             workspace.add_item(Box::new(item.clone()), cx);
5059//         });
5060//         item.update(cx, |item, cx| {
5061//             item.project_items[0].update(cx, |item, _| {
5062//                 item.entry_id = None;
5063//             });
5064//             item.is_dirty = true;
5065//             cx.blur();
5066//         });
5067//         deterministic.run_until_parked();
5068//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
5069
5070//         // Ensure autosave is prevented for deleted files also when closing the buffer.
5071//         let _close_items = pane.update(cx, |pane, cx| {
5072//             pane.close_items(cx, SaveIntent::Close, move |id| id == item_id)
5073//         });
5074//         deterministic.run_until_parked();
5075//         assert!(window.has_pending_prompt(cx));
5076//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
5077//     }
5078
5079//     #[gpui::test]
5080//     async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
5081//         init_test(cx);
5082
5083//         let fs = FakeFs::new(cx.background());
5084
5085//         let project = Project::test(fs, [], cx).await;
5086//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
5087//         let workspace = window.root(cx);
5088
5089//         let item = window.add_view(cx, |cx| {
5090//             TestItem::new().with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
5091//         });
5092//         let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
5093//         let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
5094//         let toolbar_notify_count = Rc::new(RefCell::new(0));
5095
5096//         workspace.update(cx, |workspace, cx| {
5097//             workspace.add_item(Box::new(item.clone()), cx);
5098//             let toolbar_notification_count = toolbar_notify_count.clone();
5099//             cx.observe(&toolbar, move |_, _, _| {
5100//                 *toolbar_notification_count.borrow_mut() += 1
5101//             })
5102//             .detach();
5103//         });
5104
5105//         pane.read_with(cx, |pane, _| {
5106//             assert!(!pane.can_navigate_backward());
5107//             assert!(!pane.can_navigate_forward());
5108//         });
5109
5110//         item.update(cx, |item, cx| {
5111//             item.set_state("one".to_string(), cx);
5112//         });
5113
5114//         // Toolbar must be notified to re-render the navigation buttons
5115//         assert_eq!(*toolbar_notify_count.borrow(), 1);
5116
5117//         pane.read_with(cx, |pane, _| {
5118//             assert!(pane.can_navigate_backward());
5119//             assert!(!pane.can_navigate_forward());
5120//         });
5121
5122//         workspace
5123//             .update(cx, |workspace, cx| workspace.go_back(pane.downgrade(), cx))
5124//             .await
5125//             .unwrap();
5126
5127//         assert_eq!(*toolbar_notify_count.borrow(), 3);
5128//         pane.read_with(cx, |pane, _| {
5129//             assert!(!pane.can_navigate_backward());
5130//             assert!(pane.can_navigate_forward());
5131//         });
5132//     }
5133
5134//     #[gpui::test]
5135//     async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
5136//         init_test(cx);
5137//         let fs = FakeFs::new(cx.background());
5138
5139//         let project = Project::test(fs, [], cx).await;
5140//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
5141//         let workspace = window.root(cx);
5142
5143//         let panel = workspace.update(cx, |workspace, cx| {
5144//             let panel = cx.add_view(|_| TestPanel::new(DockPosition::Right));
5145//             workspace.add_panel(panel.clone(), cx);
5146
5147//             workspace
5148//                 .right_dock()
5149//                 .update(cx, |right_dock, cx| right_dock.set_open(true, cx));
5150
5151//             panel
5152//         });
5153
5154//         let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
5155//         pane.update(cx, |pane, cx| {
5156//             let item = cx.add_view(|_| TestItem::new());
5157//             pane.add_item(Box::new(item), true, true, None, cx);
5158//         });
5159
5160//         // Transfer focus from center to panel
5161//         workspace.update(cx, |workspace, cx| {
5162//             workspace.toggle_panel_focus::<TestPanel>(cx);
5163//         });
5164
5165//         workspace.read_with(cx, |workspace, cx| {
5166//             assert!(workspace.right_dock().read(cx).is_open());
5167//             assert!(!panel.is_zoomed(cx));
5168//             assert!(panel.has_focus(cx));
5169//         });
5170
5171//         // Transfer focus from panel to center
5172//         workspace.update(cx, |workspace, cx| {
5173//             workspace.toggle_panel_focus::<TestPanel>(cx);
5174//         });
5175
5176//         workspace.read_with(cx, |workspace, cx| {
5177//             assert!(workspace.right_dock().read(cx).is_open());
5178//             assert!(!panel.is_zoomed(cx));
5179//             assert!(!panel.has_focus(cx));
5180//         });
5181
5182//         // Close the dock
5183//         workspace.update(cx, |workspace, cx| {
5184//             workspace.toggle_dock(DockPosition::Right, cx);
5185//         });
5186
5187//         workspace.read_with(cx, |workspace, cx| {
5188//             assert!(!workspace.right_dock().read(cx).is_open());
5189//             assert!(!panel.is_zoomed(cx));
5190//             assert!(!panel.has_focus(cx));
5191//         });
5192
5193//         // Open the dock
5194//         workspace.update(cx, |workspace, cx| {
5195//             workspace.toggle_dock(DockPosition::Right, cx);
5196//         });
5197
5198//         workspace.read_with(cx, |workspace, cx| {
5199//             assert!(workspace.right_dock().read(cx).is_open());
5200//             assert!(!panel.is_zoomed(cx));
5201//             assert!(panel.has_focus(cx));
5202//         });
5203
5204//         // Focus and zoom panel
5205//         panel.update(cx, |panel, cx| {
5206//             cx.focus_self();
5207//             panel.set_zoomed(true, cx)
5208//         });
5209
5210//         workspace.read_with(cx, |workspace, cx| {
5211//             assert!(workspace.right_dock().read(cx).is_open());
5212//             assert!(panel.is_zoomed(cx));
5213//             assert!(panel.has_focus(cx));
5214//         });
5215
5216//         // Transfer focus to the center closes the dock
5217//         workspace.update(cx, |workspace, cx| {
5218//             workspace.toggle_panel_focus::<TestPanel>(cx);
5219//         });
5220
5221//         workspace.read_with(cx, |workspace, cx| {
5222//             assert!(!workspace.right_dock().read(cx).is_open());
5223//             assert!(panel.is_zoomed(cx));
5224//             assert!(!panel.has_focus(cx));
5225//         });
5226
5227//         // Transferring focus back to the panel keeps it zoomed
5228//         workspace.update(cx, |workspace, cx| {
5229//             workspace.toggle_panel_focus::<TestPanel>(cx);
5230//         });
5231
5232//         workspace.read_with(cx, |workspace, cx| {
5233//             assert!(workspace.right_dock().read(cx).is_open());
5234//             assert!(panel.is_zoomed(cx));
5235//             assert!(panel.has_focus(cx));
5236//         });
5237
5238//         // Close the dock while it is zoomed
5239//         workspace.update(cx, |workspace, cx| {
5240//             workspace.toggle_dock(DockPosition::Right, cx)
5241//         });
5242
5243//         workspace.read_with(cx, |workspace, cx| {
5244//             assert!(!workspace.right_dock().read(cx).is_open());
5245//             assert!(panel.is_zoomed(cx));
5246//             assert!(workspace.zoomed.is_none());
5247//             assert!(!panel.has_focus(cx));
5248//         });
5249
5250//         // Opening the dock, when it's zoomed, retains focus
5251//         workspace.update(cx, |workspace, cx| {
5252//             workspace.toggle_dock(DockPosition::Right, cx)
5253//         });
5254
5255//         workspace.read_with(cx, |workspace, cx| {
5256//             assert!(workspace.right_dock().read(cx).is_open());
5257//             assert!(panel.is_zoomed(cx));
5258//             assert!(workspace.zoomed.is_some());
5259//             assert!(panel.has_focus(cx));
5260//         });
5261
5262//         // Unzoom and close the panel, zoom the active pane.
5263//         panel.update(cx, |panel, cx| panel.set_zoomed(false, cx));
5264//         workspace.update(cx, |workspace, cx| {
5265//             workspace.toggle_dock(DockPosition::Right, cx)
5266//         });
5267//         pane.update(cx, |pane, cx| pane.toggle_zoom(&Default::default(), cx));
5268
5269//         // Opening a dock unzooms the pane.
5270//         workspace.update(cx, |workspace, cx| {
5271//             workspace.toggle_dock(DockPosition::Right, cx)
5272//         });
5273//         workspace.read_with(cx, |workspace, cx| {
5274//             let pane = pane.read(cx);
5275//             assert!(!pane.is_zoomed());
5276//             assert!(!pane.has_focus());
5277//             assert!(workspace.right_dock().read(cx).is_open());
5278//             assert!(workspace.zoomed.is_none());
5279//         });
5280//     }
5281
5282//     #[gpui::test]
5283//     async fn test_panels(cx: &mut gpui::TestAppContext) {
5284//         init_test(cx);
5285//         let fs = FakeFs::new(cx.background());
5286
5287//         let project = Project::test(fs, [], cx).await;
5288//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
5289//         let workspace = window.root(cx);
5290
5291//         let (panel_1, panel_2) = workspace.update(cx, |workspace, cx| {
5292//             // Add panel_1 on the left, panel_2 on the right.
5293//             let panel_1 = cx.add_view(|_| TestPanel::new(DockPosition::Left));
5294//             workspace.add_panel(panel_1.clone(), cx);
5295//             workspace
5296//                 .left_dock()
5297//                 .update(cx, |left_dock, cx| left_dock.set_open(true, cx));
5298//             let panel_2 = cx.add_view(|_| TestPanel::new(DockPosition::Right));
5299//             workspace.add_panel(panel_2.clone(), cx);
5300//             workspace
5301//                 .right_dock()
5302//                 .update(cx, |right_dock, cx| right_dock.set_open(true, cx));
5303
5304//             let left_dock = workspace.left_dock();
5305//             assert_eq!(
5306//                 left_dock.read(cx).visible_panel().unwrap().id(),
5307//                 panel_1.id()
5308//             );
5309//             assert_eq!(
5310//                 left_dock.read(cx).active_panel_size(cx).unwrap(),
5311//                 panel_1.size(cx)
5312//             );
5313
5314//             left_dock.update(cx, |left_dock, cx| {
5315//                 left_dock.resize_active_panel(Some(1337.), cx)
5316//             });
5317//             assert_eq!(
5318//                 workspace
5319//                     .right_dock()
5320//                     .read(cx)
5321//                     .visible_panel()
5322//                     .unwrap()
5323//                     .id(),
5324//                 panel_2.id()
5325//             );
5326
5327//             (panel_1, panel_2)
5328//         });
5329
5330//         // Move panel_1 to the right
5331//         panel_1.update(cx, |panel_1, cx| {
5332//             panel_1.set_position(DockPosition::Right, cx)
5333//         });
5334
5335//         workspace.update(cx, |workspace, cx| {
5336//             // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
5337//             // Since it was the only panel on the left, the left dock should now be closed.
5338//             assert!(!workspace.left_dock().read(cx).is_open());
5339//             assert!(workspace.left_dock().read(cx).visible_panel().is_none());
5340//             let right_dock = workspace.right_dock();
5341//             assert_eq!(
5342//                 right_dock.read(cx).visible_panel().unwrap().id(),
5343//                 panel_1.id()
5344//             );
5345//             assert_eq!(right_dock.read(cx).active_panel_size(cx).unwrap(), 1337.);
5346
5347//             // Now we move panel_2Β to the left
5348//             panel_2.set_position(DockPosition::Left, cx);
5349//         });
5350
5351//         workspace.update(cx, |workspace, cx| {
5352//             // Since panel_2 was not visible on the right, we don't open the left dock.
5353//             assert!(!workspace.left_dock().read(cx).is_open());
5354//             // And the right dock is unaffected in it's displaying of panel_1
5355//             assert!(workspace.right_dock().read(cx).is_open());
5356//             assert_eq!(
5357//                 workspace
5358//                     .right_dock()
5359//                     .read(cx)
5360//                     .visible_panel()
5361//                     .unwrap()
5362//                     .id(),
5363//                 panel_1.id()
5364//             );
5365//         });
5366
5367//         // Move panel_1 back to the left
5368//         panel_1.update(cx, |panel_1, cx| {
5369//             panel_1.set_position(DockPosition::Left, cx)
5370//         });
5371
5372//         workspace.update(cx, |workspace, cx| {
5373//             // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
5374//             let left_dock = workspace.left_dock();
5375//             assert!(left_dock.read(cx).is_open());
5376//             assert_eq!(
5377//                 left_dock.read(cx).visible_panel().unwrap().id(),
5378//                 panel_1.id()
5379//             );
5380//             assert_eq!(left_dock.read(cx).active_panel_size(cx).unwrap(), 1337.);
5381//             // And right the dock should be closed as it no longer has any panels.
5382//             assert!(!workspace.right_dock().read(cx).is_open());
5383
5384//             // Now we move panel_1 to the bottom
5385//             panel_1.set_position(DockPosition::Bottom, cx);
5386//         });
5387
5388//         workspace.update(cx, |workspace, cx| {
5389//             // Since panel_1 was visible on the left, we close the left dock.
5390//             assert!(!workspace.left_dock().read(cx).is_open());
5391//             // The bottom dock is sized based on the panel's default size,
5392//             // since the panel orientation changed from vertical to horizontal.
5393//             let bottom_dock = workspace.bottom_dock();
5394//             assert_eq!(
5395//                 bottom_dock.read(cx).active_panel_size(cx).unwrap(),
5396//                 panel_1.size(cx),
5397//             );
5398//             // Close bottom dock and move panel_1 back to the left.
5399//             bottom_dock.update(cx, |bottom_dock, cx| bottom_dock.set_open(false, cx));
5400//             panel_1.set_position(DockPosition::Left, cx);
5401//         });
5402
5403//         // Emit activated event on panel 1
5404//         panel_1.update(cx, |_, cx| cx.emit(TestPanelEvent::Activated));
5405
5406//         // Now the left dock is open and panel_1 is active and focused.
5407//         workspace.read_with(cx, |workspace, cx| {
5408//             let left_dock = workspace.left_dock();
5409//             assert!(left_dock.read(cx).is_open());
5410//             assert_eq!(
5411//                 left_dock.read(cx).visible_panel().unwrap().id(),
5412//                 panel_1.id()
5413//             );
5414//             assert!(panel_1.is_focused(cx));
5415//         });
5416
5417//         // Emit closed event on panel 2, which is not active
5418//         panel_2.update(cx, |_, cx| cx.emit(TestPanelEvent::Closed));
5419
5420//         // Wo don't close the left dock, because panel_2 wasn't the active panel
5421//         workspace.read_with(cx, |workspace, cx| {
5422//             let left_dock = workspace.left_dock();
5423//             assert!(left_dock.read(cx).is_open());
5424//             assert_eq!(
5425//                 left_dock.read(cx).visible_panel().unwrap().id(),
5426//                 panel_1.id()
5427//             );
5428//         });
5429
5430//         // Emitting a ZoomIn event shows the panel as zoomed.
5431//         panel_1.update(cx, |_, cx| cx.emit(TestPanelEvent::ZoomIn));
5432//         workspace.read_with(cx, |workspace, _| {
5433//             assert_eq!(workspace.zoomed, Some(panel_1.downgrade().into_any()));
5434//             assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
5435//         });
5436
5437//         // Move panel to another dock while it is zoomed
5438//         panel_1.update(cx, |panel, cx| panel.set_position(DockPosition::Right, cx));
5439//         workspace.read_with(cx, |workspace, _| {
5440//             assert_eq!(workspace.zoomed, Some(panel_1.downgrade().into_any()));
5441//             assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
5442//         });
5443
5444//         // If focus is transferred to another view that's not a panel or another pane, we still show
5445//         // the panel as zoomed.
5446//         let focus_receiver = window.add_view(cx, |_| EmptyView);
5447//         focus_receiver.update(cx, |_, cx| cx.focus_self());
5448//         workspace.read_with(cx, |workspace, _| {
5449//             assert_eq!(workspace.zoomed, Some(panel_1.downgrade().into_any()));
5450//             assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
5451//         });
5452
5453//         // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
5454//         workspace.update(cx, |_, cx| cx.focus_self());
5455//         workspace.read_with(cx, |workspace, _| {
5456//             assert_eq!(workspace.zoomed, None);
5457//             assert_eq!(workspace.zoomed_position, None);
5458//         });
5459
5460//         // If focus is transferred again to another view that's not a panel or a pane, we won't
5461//         // show the panel as zoomed because it wasn't zoomed before.
5462//         focus_receiver.update(cx, |_, cx| cx.focus_self());
5463//         workspace.read_with(cx, |workspace, _| {
5464//             assert_eq!(workspace.zoomed, None);
5465//             assert_eq!(workspace.zoomed_position, None);
5466//         });
5467
5468//         // When focus is transferred back to the panel, it is zoomed again.
5469//         panel_1.update(cx, |_, cx| cx.focus_self());
5470//         workspace.read_with(cx, |workspace, _| {
5471//             assert_eq!(workspace.zoomed, Some(panel_1.downgrade().into_any()));
5472//             assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
5473//         });
5474
5475//         // Emitting a ZoomOut event unzooms the panel.
5476//         panel_1.update(cx, |_, cx| cx.emit(TestPanelEvent::ZoomOut));
5477//         workspace.read_with(cx, |workspace, _| {
5478//             assert_eq!(workspace.zoomed, None);
5479//             assert_eq!(workspace.zoomed_position, None);
5480//         });
5481
5482//         // Emit closed event on panel 1, which is active
5483//         panel_1.update(cx, |_, cx| cx.emit(TestPanelEvent::Closed));
5484
5485//         // Now the left dock is closed, because panel_1 was the active panel
5486//         workspace.read_with(cx, |workspace, cx| {
5487//             let right_dock = workspace.right_dock();
5488//             assert!(!right_dock.read(cx).is_open());
5489//         });
5490//     }
5491
5492//     pub fn init_test(cx: &mut TestAppContext) {
5493//         cx.foreground().forbid_parking();
5494//         cx.update(|cx| {
5495//             cx.set_global(SettingsStore::test(cx));
5496//             theme::init((), cx);
5497//             language::init(cx);
5498//             crate::init_settings(cx);
5499//             Project::init_settings(cx);
5500//         });
5501//     }
5502// }