workspace2.rs

   1#![allow(unused_variables, dead_code, unused_mut)]
   2// todo!() this is to make transition easier.
   3
   4pub mod dock;
   5pub mod item;
   6pub mod notifications;
   7pub mod pane;
   8pub mod pane_group;
   9mod persistence;
  10pub mod searchable;
  11// todo!()
  12// pub mod shared_screen;
  13mod modal_layer;
  14mod status_bar;
  15mod toolbar;
  16mod workspace_settings;
  17
  18pub use crate::persistence::{
  19    model::{
  20        DockData, DockStructure, ItemId, SerializedItem, SerializedPane, SerializedPaneGroup,
  21        SerializedWorkspace,
  22    },
  23    WorkspaceDb,
  24};
  25use anyhow::{anyhow, Context as _, Result};
  26use call2::ActiveCall;
  27use client2::{
  28    proto::{self, PeerId},
  29    Client, TypedEnvelope, UserStore,
  30};
  31use collections::{hash_map, HashMap, HashSet};
  32use dock::{Dock, DockPosition, PanelButtons};
  33use futures::{
  34    channel::{mpsc, oneshot},
  35    future::try_join_all,
  36    Future, FutureExt, StreamExt,
  37};
  38use gpui::{
  39    actions, div, point, rems, size, Action, AnyModel, AnyView, AnyWeakView, AppContext,
  40    AsyncAppContext, AsyncWindowContext, Bounds, Component, DispatchContext, Div, Entity, EntityId,
  41    EventEmitter, FocusHandle, GlobalPixels, Model, ModelContext, ParentElement, Point, Render,
  42    Size, StatefulInteractive, StatefulInteractivity, StatelessInteractive, Styled, Subscription,
  43    Task, View, ViewContext, VisualContext, WeakView, WindowBounds, WindowContext, WindowHandle,
  44    WindowOptions,
  45};
  46use item::{FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, ProjectItem};
  47use itertools::Itertools;
  48use language2::LanguageRegistry;
  49use lazy_static::lazy_static;
  50pub use modal_layer::*;
  51use node_runtime::NodeRuntime;
  52use notifications::{simple_message_notification::MessageNotification, NotificationHandle};
  53pub use pane::*;
  54pub use pane_group::*;
  55use persistence::{model::WorkspaceLocation, DB};
  56use postage::stream::Stream;
  57use project2::{Project, ProjectEntryId, ProjectPath, Worktree};
  58use serde::Deserialize;
  59use settings2::Settings;
  60use status_bar::StatusBar;
  61pub use status_bar::StatusItemView;
  62use std::{
  63    any::TypeId,
  64    borrow::Cow,
  65    env,
  66    path::{Path, PathBuf},
  67    sync::{atomic::AtomicUsize, Arc},
  68    time::Duration,
  69};
  70use theme2::ActiveTheme;
  71pub use toolbar::{ToolbarItemLocation, ToolbarItemView};
  72use ui::{h_stack, Label};
  73use util::ResultExt;
  74use uuid::Uuid;
  75use workspace_settings::{AutosaveSetting, WorkspaceSettings};
  76
  77lazy_static! {
  78    static ref ZED_WINDOW_SIZE: Option<Size<GlobalPixels>> = env::var("ZED_WINDOW_SIZE")
  79        .ok()
  80        .as_deref()
  81        .and_then(parse_pixel_size_env_var);
  82    static ref ZED_WINDOW_POSITION: Option<Point<GlobalPixels>> = env::var("ZED_WINDOW_POSITION")
  83        .ok()
  84        .as_deref()
  85        .and_then(parse_pixel_position_env_var);
  86}
  87
  88// #[derive(Clone, PartialEq)]
  89// pub struct RemoveWorktreeFromProject(pub WorktreeId);
  90
  91actions!(
  92    Open,
  93    NewFile,
  94    NewWindow,
  95    CloseWindow,
  96    CloseInactiveTabsAndPanes,
  97    AddFolderToProject,
  98    Unfollow,
  99    SaveAs,
 100    ReloadActiveItem,
 101    ActivatePreviousPane,
 102    ActivateNextPane,
 103    FollowNextCollaborator,
 104    NewTerminal,
 105    NewCenterTerminal,
 106    ToggleTerminalFocus,
 107    NewSearch,
 108    Feedback,
 109    Restart,
 110    Welcome,
 111    ToggleZoom,
 112    ToggleLeftDock,
 113    ToggleRightDock,
 114    ToggleBottomDock,
 115    CloseAllDocks,
 116);
 117
 118// #[derive(Clone, PartialEq)]
 119// pub struct OpenPaths {
 120//     pub paths: Vec<PathBuf>,
 121// }
 122
 123// #[derive(Clone, Deserialize, PartialEq)]
 124// pub struct ActivatePane(pub usize);
 125
 126// #[derive(Clone, Deserialize, PartialEq)]
 127// pub struct ActivatePaneInDirection(pub SplitDirection);
 128
 129// #[derive(Clone, Deserialize, PartialEq)]
 130// pub struct SwapPaneInDirection(pub SplitDirection);
 131
 132// #[derive(Clone, Deserialize, PartialEq)]
 133// pub struct NewFileInDirection(pub SplitDirection);
 134
 135// #[derive(Clone, PartialEq, Debug, Deserialize)]
 136// #[serde(rename_all = "camelCase")]
 137// pub struct SaveAll {
 138//     pub save_intent: Option<SaveIntent>,
 139// }
 140
 141// #[derive(Clone, PartialEq, Debug, Deserialize)]
 142// #[serde(rename_all = "camelCase")]
 143// pub struct Save {
 144//     pub save_intent: Option<SaveIntent>,
 145// }
 146
 147// #[derive(Clone, PartialEq, Debug, Deserialize, Default)]
 148// #[serde(rename_all = "camelCase")]
 149// pub struct CloseAllItemsAndPanes {
 150//     pub save_intent: Option<SaveIntent>,
 151// }
 152
 153#[derive(Deserialize)]
 154pub struct Toast {
 155    id: usize,
 156    msg: Cow<'static, str>,
 157    #[serde(skip)]
 158    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut WindowContext)>)>,
 159}
 160
 161impl Toast {
 162    pub fn new<I: Into<Cow<'static, str>>>(id: usize, msg: I) -> Self {
 163        Toast {
 164            id,
 165            msg: msg.into(),
 166            on_click: None,
 167        }
 168    }
 169
 170    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
 171    where
 172        M: Into<Cow<'static, str>>,
 173        F: Fn(&mut WindowContext) + 'static,
 174    {
 175        self.on_click = Some((message.into(), Arc::new(on_click)));
 176        self
 177    }
 178}
 179
 180impl PartialEq for Toast {
 181    fn eq(&self, other: &Self) -> bool {
 182        self.id == other.id
 183            && self.msg == other.msg
 184            && self.on_click.is_some() == other.on_click.is_some()
 185    }
 186}
 187
 188impl Clone for Toast {
 189    fn clone(&self) -> Self {
 190        Toast {
 191            id: self.id,
 192            msg: self.msg.to_owned(),
 193            on_click: self.on_click.clone(),
 194        }
 195    }
 196}
 197
 198// #[derive(Clone, Deserialize, PartialEq)]
 199// pub struct OpenTerminal {
 200//     pub working_directory: PathBuf,
 201// }
 202
 203// impl_actions!(
 204//     workspace,
 205//     [
 206//         ActivatePane,
 207//         ActivatePaneInDirection,
 208//         SwapPaneInDirection,
 209//         NewFileInDirection,
 210//         Toast,
 211//         OpenTerminal,
 212//         SaveAll,
 213//         Save,
 214//         CloseAllItemsAndPanes,
 215//     ]
 216// );
 217
 218pub type WorkspaceId = i64;
 219
 220pub fn init_settings(cx: &mut AppContext) {
 221    WorkspaceSettings::register(cx);
 222    ItemSettings::register(cx);
 223}
 224
 225pub fn init(app_state: Arc<AppState>, cx: &mut AppContext) {
 226    init_settings(cx);
 227    pane::init(cx);
 228    notifications::init(cx);
 229
 230    //     cx.add_global_action({
 231    //         let app_state = Arc::downgrade(&app_state);
 232    //         move |_: &Open, cx: &mut AppContext| {
 233    //             let mut paths = cx.prompt_for_paths(PathPromptOptions {
 234    //                 files: true,
 235    //                 directories: true,
 236    //                 multiple: true,
 237    //             });
 238
 239    //             if let Some(app_state) = app_state.upgrade() {
 240    //                 cx.spawn(move |mut cx| async move {
 241    //                     if let Some(paths) = paths.recv().await.flatten() {
 242    //                         cx.update(|cx| {
 243    //                             open_paths(&paths, &app_state, None, cx).detach_and_log_err(cx)
 244    //                         });
 245    //                     }
 246    //                 })
 247    //                 .detach();
 248    //             }
 249    //         }
 250    //     });
 251    //     cx.add_async_action(Workspace::open);
 252
 253    //     cx.add_async_action(Workspace::follow_next_collaborator);
 254    //     cx.add_async_action(Workspace::close);
 255    //     cx.add_async_action(Workspace::close_inactive_items_and_panes);
 256    //     cx.add_async_action(Workspace::close_all_items_and_panes);
 257    //     cx.add_global_action(Workspace::close_global);
 258    //     cx.add_global_action(restart);
 259    //     cx.add_async_action(Workspace::save_all);
 260    //     cx.add_action(Workspace::add_folder_to_project);
 261    //     cx.add_action(
 262    //         |workspace: &mut Workspace, _: &Unfollow, cx: &mut ViewContext<Workspace>| {
 263    //             let pane = workspace.active_pane().clone();
 264    //             workspace.unfollow(&pane, cx);
 265    //         },
 266    //     );
 267    //     cx.add_action(
 268    //         |workspace: &mut Workspace, action: &Save, cx: &mut ViewContext<Workspace>| {
 269    //             workspace
 270    //                 .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), cx)
 271    //                 .detach_and_log_err(cx);
 272    //         },
 273    //     );
 274    //     cx.add_action(
 275    //         |workspace: &mut Workspace, _: &SaveAs, cx: &mut ViewContext<Workspace>| {
 276    //             workspace
 277    //                 .save_active_item(SaveIntent::SaveAs, cx)
 278    //                 .detach_and_log_err(cx);
 279    //         },
 280    //     );
 281    //     cx.add_action(|workspace: &mut Workspace, _: &ActivatePreviousPane, cx| {
 282    //         workspace.activate_previous_pane(cx)
 283    //     });
 284    //     cx.add_action(|workspace: &mut Workspace, _: &ActivateNextPane, cx| {
 285    //         workspace.activate_next_pane(cx)
 286    //     });
 287
 288    //     cx.add_action(
 289    //         |workspace: &mut Workspace, action: &ActivatePaneInDirection, cx| {
 290    //             workspace.activate_pane_in_direction(action.0, cx)
 291    //         },
 292    //     );
 293
 294    //     cx.add_action(
 295    //         |workspace: &mut Workspace, action: &SwapPaneInDirection, cx| {
 296    //             workspace.swap_pane_in_direction(action.0, cx)
 297    //         },
 298    //     );
 299
 300    //     cx.add_action(|workspace: &mut Workspace, _: &ToggleLeftDock, cx| {
 301    //         workspace.toggle_dock(DockPosition::Left, cx);
 302    //     });
 303    //     cx.add_action(|workspace: &mut Workspace, _: &ToggleRightDock, cx| {
 304    //         workspace.toggle_dock(DockPosition::Right, cx);
 305    //     });
 306    //     cx.add_action(|workspace: &mut Workspace, _: &ToggleBottomDock, cx| {
 307    //         workspace.toggle_dock(DockPosition::Bottom, cx);
 308    //     });
 309    //     cx.add_action(|workspace: &mut Workspace, _: &CloseAllDocks, cx| {
 310    //         workspace.close_all_docks(cx);
 311    //     });
 312    //     cx.add_action(Workspace::activate_pane_at_index);
 313    //     cx.add_action(|workspace: &mut Workspace, _: &ReopenClosedItem, cx| {
 314    //         workspace.reopen_closed_item(cx).detach();
 315    //     });
 316    //     cx.add_action(|workspace: &mut Workspace, _: &GoBack, cx| {
 317    //         workspace
 318    //             .go_back(workspace.active_pane().downgrade(), cx)
 319    //             .detach();
 320    //     });
 321    //     cx.add_action(|workspace: &mut Workspace, _: &GoForward, cx| {
 322    //         workspace
 323    //             .go_forward(workspace.active_pane().downgrade(), cx)
 324    //             .detach();
 325    //     });
 326
 327    //     cx.add_action(|_: &mut Workspace, _: &install_cli::Install, cx| {
 328    //         cx.spawn(|workspace, mut cx| async move {
 329    //             let err = install_cli::install_cli(&cx)
 330    //                 .await
 331    //                 .context("Failed to create CLI symlink");
 332
 333    //             workspace.update(&mut cx, |workspace, cx| {
 334    //                 if matches!(err, Err(_)) {
 335    //                     err.notify_err(workspace, cx);
 336    //                 } else {
 337    //                     workspace.show_notification(1, cx, |cx| {
 338    //                         cx.build_view(|_| {
 339    //                             MessageNotification::new("Successfully installed the `zed` binary")
 340    //                         })
 341    //                     });
 342    //                 }
 343    //             })
 344    //         })
 345    //         .detach();
 346    //     });
 347}
 348
 349type ProjectItemBuilders =
 350    HashMap<TypeId, fn(Model<Project>, AnyModel, &mut ViewContext<Pane>) -> Box<dyn ItemHandle>>;
 351pub fn register_project_item<I: ProjectItem>(cx: &mut AppContext) {
 352    let builders = cx.default_global::<ProjectItemBuilders>();
 353    builders.insert(TypeId::of::<I::Item>(), |project, model, cx| {
 354        let item = model.downcast::<I::Item>().unwrap();
 355        Box::new(cx.build_view(|cx| I::for_project_item(project, item, cx)))
 356    });
 357}
 358
 359type FollowableItemBuilder = fn(
 360    View<Pane>,
 361    View<Workspace>,
 362    ViewId,
 363    &mut Option<proto::view::Variant>,
 364    &mut AppContext,
 365) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>;
 366type FollowableItemBuilders = HashMap<
 367    TypeId,
 368    (
 369        FollowableItemBuilder,
 370        fn(&AnyView) -> Box<dyn FollowableItemHandle>,
 371    ),
 372>;
 373pub fn register_followable_item<I: FollowableItem>(cx: &mut AppContext) {
 374    let builders = cx.default_global::<FollowableItemBuilders>();
 375    builders.insert(
 376        TypeId::of::<I>(),
 377        (
 378            |pane, workspace, id, state, cx| {
 379                I::from_state_proto(pane, workspace, id, state, cx).map(|task| {
 380                    cx.foreground_executor()
 381                        .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
 382                })
 383            },
 384            |this| Box::new(this.clone().downcast::<I>().unwrap()),
 385        ),
 386    );
 387}
 388
 389type ItemDeserializers = HashMap<
 390    Arc<str>,
 391    fn(
 392        Model<Project>,
 393        WeakView<Workspace>,
 394        WorkspaceId,
 395        ItemId,
 396        &mut ViewContext<Pane>,
 397    ) -> Task<Result<Box<dyn ItemHandle>>>,
 398>;
 399pub fn register_deserializable_item<I: Item>(cx: &mut AppContext) {
 400    if let Some(serialized_item_kind) = I::serialized_item_kind() {
 401        let deserializers = cx.default_global::<ItemDeserializers>();
 402        deserializers.insert(
 403            Arc::from(serialized_item_kind),
 404            |project, workspace, workspace_id, item_id, cx| {
 405                let task = I::deserialize(project, workspace, workspace_id, item_id, cx);
 406                cx.foreground_executor()
 407                    .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 408            },
 409        );
 410    }
 411}
 412
 413pub struct AppState {
 414    pub languages: Arc<LanguageRegistry>,
 415    pub client: Arc<Client>,
 416    pub user_store: Model<UserStore>,
 417    pub workspace_store: Model<WorkspaceStore>,
 418    pub fs: Arc<dyn fs2::Fs>,
 419    pub build_window_options:
 420        fn(Option<WindowBounds>, Option<Uuid>, &mut AppContext) -> WindowOptions,
 421    pub initialize_workspace: fn(
 422        WeakView<Workspace>,
 423        bool,
 424        Arc<AppState>,
 425        AsyncWindowContext,
 426    ) -> Task<anyhow::Result<()>>,
 427    pub node_runtime: Arc<dyn NodeRuntime>,
 428}
 429
 430pub struct WorkspaceStore {
 431    workspaces: HashSet<WindowHandle<Workspace>>,
 432    followers: Vec<Follower>,
 433    client: Arc<Client>,
 434    _subscriptions: Vec<client2::Subscription>,
 435}
 436
 437#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 438struct Follower {
 439    project_id: Option<u64>,
 440    peer_id: PeerId,
 441}
 442
 443impl AppState {
 444    #[cfg(any(test, feature = "test-support"))]
 445    pub fn test(cx: &mut AppContext) -> Arc<Self> {
 446        use gpui::Context;
 447        use node_runtime::FakeNodeRuntime;
 448        use settings2::SettingsStore;
 449
 450        if !cx.has_global::<SettingsStore>() {
 451            let settings_store = SettingsStore::test(cx);
 452            cx.set_global(settings_store);
 453        }
 454
 455        let fs = fs2::FakeFs::new(cx.background_executor().clone());
 456        let languages = Arc::new(LanguageRegistry::test());
 457        let http_client = util::http::FakeHttpClient::with_404_response();
 458        let client = Client::new(http_client.clone(), cx);
 459        let user_store = cx.build_model(|cx| UserStore::new(client.clone(), http_client, cx));
 460        let workspace_store = cx.build_model(|cx| WorkspaceStore::new(client.clone(), cx));
 461
 462        theme2::init(cx);
 463        client2::init(&client, cx);
 464        crate::init_settings(cx);
 465
 466        Arc::new(Self {
 467            client,
 468            fs,
 469            languages,
 470            user_store,
 471            workspace_store,
 472            node_runtime: FakeNodeRuntime::new(),
 473            initialize_workspace: |_, _, _, _| Task::ready(Ok(())),
 474            build_window_options: |_, _, _| Default::default(),
 475        })
 476    }
 477}
 478
 479struct DelayedDebouncedEditAction {
 480    task: Option<Task<()>>,
 481    cancel_channel: Option<oneshot::Sender<()>>,
 482}
 483
 484impl DelayedDebouncedEditAction {
 485    fn new() -> DelayedDebouncedEditAction {
 486        DelayedDebouncedEditAction {
 487            task: None,
 488            cancel_channel: None,
 489        }
 490    }
 491
 492    fn fire_new<F>(&mut self, delay: Duration, cx: &mut ViewContext<Workspace>, func: F)
 493    where
 494        F: 'static + Send + FnOnce(&mut Workspace, &mut ViewContext<Workspace>) -> Task<Result<()>>,
 495    {
 496        if let Some(channel) = self.cancel_channel.take() {
 497            _ = channel.send(());
 498        }
 499
 500        let (sender, mut receiver) = oneshot::channel::<()>();
 501        self.cancel_channel = Some(sender);
 502
 503        let previous_task = self.task.take();
 504        self.task = Some(cx.spawn(move |workspace, mut cx| async move {
 505            let mut timer = cx.background_executor().timer(delay).fuse();
 506            if let Some(previous_task) = previous_task {
 507                previous_task.await;
 508            }
 509
 510            futures::select_biased! {
 511                _ = receiver => return,
 512                    _ = timer => {}
 513            }
 514
 515            if let Some(result) = workspace
 516                .update(&mut cx, |workspace, cx| (func)(workspace, cx))
 517                .log_err()
 518            {
 519                result.await.log_err();
 520            }
 521        }));
 522    }
 523}
 524
 525pub enum Event {
 526    PaneAdded(View<Pane>),
 527    ContactRequestedJoin(u64),
 528    WorkspaceCreated(WeakView<Workspace>),
 529}
 530
 531pub struct Workspace {
 532    weak_self: WeakView<Self>,
 533    focus_handle: FocusHandle,
 534    workspace_actions: Vec<
 535        Box<
 536            dyn Fn(
 537                Div<Workspace, StatefulInteractivity<Workspace>>,
 538            ) -> Div<Workspace, StatefulInteractivity<Workspace>>,
 539        >,
 540    >,
 541    zoomed: Option<AnyWeakView>,
 542    zoomed_position: Option<DockPosition>,
 543    center: PaneGroup,
 544    left_dock: View<Dock>,
 545    bottom_dock: View<Dock>,
 546    right_dock: View<Dock>,
 547    panes: Vec<View<Pane>>,
 548    panes_by_item: HashMap<EntityId, WeakView<Pane>>,
 549    active_pane: View<Pane>,
 550    last_active_center_pane: Option<WeakView<Pane>>,
 551    last_active_view_id: Option<proto::ViewId>,
 552    status_bar: View<StatusBar>,
 553    modal_layer: View<ModalLayer>,
 554    //     titlebar_item: Option<AnyViewHandle>,
 555    notifications: Vec<(TypeId, usize, Box<dyn NotificationHandle>)>,
 556    project: Model<Project>,
 557    follower_states: HashMap<View<Pane>, FollowerState>,
 558    last_leaders_by_pane: HashMap<WeakView<Pane>, PeerId>,
 559    window_edited: bool,
 560    active_call: Option<(Model<ActiveCall>, Vec<Subscription>)>,
 561    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 562    database_id: WorkspaceId,
 563    app_state: Arc<AppState>,
 564    subscriptions: Vec<Subscription>,
 565    _apply_leader_updates: Task<Result<()>>,
 566    _observe_current_user: Task<Result<()>>,
 567    _schedule_serialize: Option<Task<()>>,
 568    pane_history_timestamp: Arc<AtomicUsize>,
 569}
 570
 571#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 572pub struct ViewId {
 573    pub creator: PeerId,
 574    pub id: u64,
 575}
 576
 577#[derive(Default)]
 578struct FollowerState {
 579    leader_id: PeerId,
 580    active_view_id: Option<ViewId>,
 581    items_by_leader_view_id: HashMap<ViewId, Box<dyn FollowableItemHandle>>,
 582}
 583
 584enum WorkspaceBounds {}
 585
 586impl Workspace {
 587    pub fn new(
 588        workspace_id: WorkspaceId,
 589        project: Model<Project>,
 590        app_state: Arc<AppState>,
 591        cx: &mut ViewContext<Self>,
 592    ) -> Self {
 593        cx.observe(&project, |_, _, cx| cx.notify()).detach();
 594        cx.subscribe(&project, move |this, _, event, cx| {
 595            match event {
 596                project2::Event::RemoteIdChanged(_) => {
 597                    this.update_window_title(cx);
 598                }
 599
 600                project2::Event::CollaboratorLeft(peer_id) => {
 601                    this.collaborator_left(*peer_id, cx);
 602                }
 603
 604                project2::Event::WorktreeRemoved(_) | project2::Event::WorktreeAdded => {
 605                    this.update_window_title(cx);
 606                    this.serialize_workspace(cx);
 607                }
 608
 609                project2::Event::DisconnectedFromHost => {
 610                    this.update_window_edited(cx);
 611                    cx.blur();
 612                }
 613
 614                project2::Event::Closed => {
 615                    cx.remove_window();
 616                }
 617
 618                project2::Event::DeletedEntry(entry_id) => {
 619                    for pane in this.panes.iter() {
 620                        pane.update(cx, |pane, cx| {
 621                            pane.handle_deleted_project_item(*entry_id, cx)
 622                        });
 623                    }
 624                }
 625
 626                project2::Event::Notification(message) => this.show_notification(0, cx, |cx| {
 627                    cx.build_view(|_| MessageNotification::new(message.clone()))
 628                }),
 629
 630                _ => {}
 631            }
 632            cx.notify()
 633        })
 634        .detach();
 635
 636        let weak_handle = cx.view().downgrade();
 637        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 638
 639        let center_pane = cx.build_view(|cx| {
 640            Pane::new(
 641                weak_handle.clone(),
 642                project.clone(),
 643                pane_history_timestamp.clone(),
 644                cx,
 645            )
 646        });
 647        cx.subscribe(&center_pane, Self::handle_pane_event).detach();
 648        // todo!()
 649        // cx.focus(&center_pane);
 650        cx.emit(Event::PaneAdded(center_pane.clone()));
 651
 652        let window_handle = cx.window_handle().downcast::<Workspace>().unwrap();
 653        app_state.workspace_store.update(cx, |store, _| {
 654            store.workspaces.insert(window_handle);
 655        });
 656
 657        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 658        let mut connection_status = app_state.client.status();
 659        let _observe_current_user = cx.spawn(|this, mut cx| async move {
 660            current_user.next().await;
 661            connection_status.next().await;
 662            let mut stream =
 663                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 664
 665            while stream.recv().await.is_some() {
 666                this.update(&mut cx, |_, cx| cx.notify())?;
 667            }
 668            anyhow::Ok(())
 669        });
 670
 671        // All leader updates are enqueued and then processed in a single task, so
 672        // that each asynchronous operation can be run in order.
 673        let (leader_updates_tx, mut leader_updates_rx) =
 674            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 675        let _apply_leader_updates = cx.spawn(|this, mut cx| async move {
 676            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 677                Self::process_leader_update(&this, leader_id, update, &mut cx)
 678                    .await
 679                    .log_err();
 680            }
 681
 682            Ok(())
 683        });
 684
 685        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 686
 687        let left_dock = cx.build_view(|_| Dock::new(DockPosition::Left));
 688        let bottom_dock = cx.build_view(|_| Dock::new(DockPosition::Bottom));
 689        let right_dock = cx.build_view(|_| Dock::new(DockPosition::Right));
 690        let left_dock_buttons =
 691            cx.build_view(|cx| PanelButtons::new(left_dock.clone(), weak_handle.clone(), cx));
 692        let bottom_dock_buttons =
 693            cx.build_view(|cx| PanelButtons::new(bottom_dock.clone(), weak_handle.clone(), cx));
 694        let right_dock_buttons =
 695            cx.build_view(|cx| PanelButtons::new(right_dock.clone(), weak_handle.clone(), cx));
 696        let status_bar = cx.build_view(|cx| {
 697            let mut status_bar = StatusBar::new(&center_pane.clone(), cx);
 698            status_bar.add_left_item(left_dock_buttons, cx);
 699            status_bar.add_right_item(right_dock_buttons, cx);
 700            status_bar.add_right_item(bottom_dock_buttons, cx);
 701            status_bar
 702        });
 703
 704        let workspace_handle = cx.view().downgrade();
 705        let modal_layer = cx.build_view(|cx| ModalLayer::new());
 706
 707        // todo!()
 708        // cx.update_default_global::<DragAndDrop<Workspace>, _, _>(|drag_and_drop, _| {
 709        //     drag_and_drop.register_container(weak_handle.clone());
 710        // });
 711
 712        let mut active_call = None;
 713        if cx.has_global::<Model<ActiveCall>>() {
 714            let call = cx.global::<Model<ActiveCall>>().clone();
 715            let mut subscriptions = Vec::new();
 716            subscriptions.push(cx.subscribe(&call, Self::on_active_call_event));
 717            active_call = Some((call, subscriptions));
 718        }
 719
 720        let subscriptions = vec![
 721            cx.observe_window_activation(Self::on_window_activation_changed),
 722            cx.observe_window_bounds(move |_, cx| {
 723                if let Some(display) = cx.display() {
 724                    // Transform fixed bounds to be stored in terms of the containing display
 725                    let mut bounds = cx.window_bounds();
 726                    if let WindowBounds::Fixed(window_bounds) = &mut bounds {
 727                        let display_bounds = display.bounds();
 728                        window_bounds.origin.x -= display_bounds.origin.x;
 729                        window_bounds.origin.y -= display_bounds.origin.y;
 730                    }
 731
 732                    if let Some(display_uuid) = display.uuid().log_err() {
 733                        cx.background_executor()
 734                            .spawn(DB.set_window_bounds(workspace_id, bounds, display_uuid))
 735                            .detach_and_log_err(cx);
 736                    }
 737                }
 738                cx.notify();
 739            }),
 740            cx.observe(&left_dock, |this, _, cx| {
 741                this.serialize_workspace(cx);
 742                cx.notify();
 743            }),
 744            cx.observe(&bottom_dock, |this, _, cx| {
 745                this.serialize_workspace(cx);
 746                cx.notify();
 747            }),
 748            cx.observe(&right_dock, |this, _, cx| {
 749                this.serialize_workspace(cx);
 750                cx.notify();
 751            }),
 752        ];
 753
 754        cx.defer(|this, cx| this.update_window_title(cx));
 755        Workspace {
 756            weak_self: weak_handle.clone(),
 757            focus_handle: cx.focus_handle(),
 758            zoomed: None,
 759            zoomed_position: None,
 760            center: PaneGroup::new(center_pane.clone()),
 761            panes: vec![center_pane.clone()],
 762            panes_by_item: Default::default(),
 763            active_pane: center_pane.clone(),
 764            last_active_center_pane: Some(center_pane.downgrade()),
 765            last_active_view_id: None,
 766            status_bar,
 767            modal_layer,
 768            // titlebar_item: None,
 769            notifications: Default::default(),
 770            left_dock,
 771            bottom_dock,
 772            right_dock,
 773            project: project.clone(),
 774            follower_states: Default::default(),
 775            last_leaders_by_pane: Default::default(),
 776            window_edited: false,
 777            active_call,
 778            database_id: workspace_id,
 779            app_state,
 780            _observe_current_user,
 781            _apply_leader_updates,
 782            _schedule_serialize: None,
 783            leader_updates_tx,
 784            subscriptions,
 785            pane_history_timestamp,
 786            workspace_actions: Default::default(),
 787        }
 788    }
 789
 790    fn new_local(
 791        abs_paths: Vec<PathBuf>,
 792        app_state: Arc<AppState>,
 793        _requesting_window: Option<WindowHandle<Workspace>>,
 794        cx: &mut AppContext,
 795    ) -> Task<
 796        anyhow::Result<(
 797            WindowHandle<Workspace>,
 798            Vec<Option<Result<Box<dyn ItemHandle>, anyhow::Error>>>,
 799        )>,
 800    > {
 801        let project_handle = Project::local(
 802            app_state.client.clone(),
 803            app_state.node_runtime.clone(),
 804            app_state.user_store.clone(),
 805            app_state.languages.clone(),
 806            app_state.fs.clone(),
 807            cx,
 808        );
 809
 810        cx.spawn(|mut cx| async move {
 811            let serialized_workspace: Option<SerializedWorkspace> = None; //persistence::DB.workspace_for_roots(&abs_paths.as_slice());
 812
 813            let paths_to_open = Arc::new(abs_paths);
 814
 815            // Get project paths for all of the abs_paths
 816            let mut worktree_roots: HashSet<Arc<Path>> = Default::default();
 817            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 818                Vec::with_capacity(paths_to_open.len());
 819            for path in paths_to_open.iter().cloned() {
 820                if let Some((worktree, project_entry)) = cx
 821                    .update(|cx| {
 822                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 823                    })?
 824                    .await
 825                    .log_err()
 826                {
 827                    worktree_roots.extend(worktree.update(&mut cx, |tree, _| tree.abs_path()).ok());
 828                    project_paths.push((path, Some(project_entry)));
 829                } else {
 830                    project_paths.push((path, None));
 831                }
 832            }
 833
 834            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 835                serialized_workspace.id
 836            } else {
 837                DB.next_id().await.unwrap_or(0)
 838            };
 839
 840            // todo!()
 841            let window = /*if let Some(window) = requesting_window {
 842                cx.update_window(window.into(), |old_workspace, cx| {
 843                    cx.replace_root_view(|cx| {
 844                        Workspace::new(workspace_id, project_handle.clone(), app_state.clone(), cx)
 845                    });
 846                });
 847                window
 848                } else */ {
 849                let window_bounds_override = window_bounds_env_override(&cx);
 850                let (bounds, display) = if let Some(bounds) = window_bounds_override {
 851                    (Some(bounds), None)
 852                } else {
 853                    serialized_workspace
 854                        .as_ref()
 855                        .and_then(|serialized_workspace| {
 856                            let serialized_display = serialized_workspace.display?;
 857                            let mut bounds = serialized_workspace.bounds?;
 858
 859                            // Stored bounds are relative to the containing display.
 860                            // So convert back to global coordinates if that screen still exists
 861                            if let WindowBounds::Fixed(mut window_bounds) = bounds {
 862                                let screen =
 863                                    cx.update(|cx|
 864                                        cx.displays()
 865                                            .into_iter()
 866                                            .find(|display| display.uuid().ok() == Some(serialized_display))
 867                                    ).ok()??;
 868                                let screen_bounds = screen.bounds();
 869                                window_bounds.origin.x += screen_bounds.origin.x;
 870                                window_bounds.origin.y += screen_bounds.origin.y;
 871                                bounds = WindowBounds::Fixed(window_bounds);
 872                            }
 873
 874                            Some((bounds, serialized_display))
 875                        })
 876                        .unzip()
 877                };
 878
 879                // Use the serialized workspace to construct the new window
 880                let options =
 881                    cx.update(|cx| (app_state.build_window_options)(bounds, display, cx))?;
 882
 883                cx.open_window(options, {
 884                    let app_state = app_state.clone();
 885                    let workspace_id = workspace_id.clone();
 886                    let project_handle = project_handle.clone();
 887                    move |cx| {
 888                        cx.build_view(|cx| {
 889                            Workspace::new(workspace_id, project_handle, app_state, cx)
 890                        })
 891                    }
 892                })?
 893            };
 894
 895            // todo!() Ask how to do this
 896            let weak_view = window.update(&mut cx, |_, cx| cx.view().downgrade())?;
 897            let async_cx = window.update(&mut cx, |_, cx| cx.to_async())?;
 898
 899            (app_state.initialize_workspace)(
 900                weak_view,
 901                serialized_workspace.is_some(),
 902                app_state.clone(),
 903                async_cx,
 904            )
 905            .await
 906            .log_err();
 907
 908            window
 909                .update(&mut cx, |_, cx| cx.activate_window())
 910                .log_err();
 911
 912            notify_if_database_failed(window, &mut cx);
 913            let opened_items = window
 914                .update(&mut cx, |_workspace, cx| {
 915                    open_items(
 916                        serialized_workspace,
 917                        project_paths,
 918                        app_state,
 919                        cx,
 920                    )
 921                })?
 922                .await
 923                .unwrap_or_default();
 924
 925            Ok((window, opened_items))
 926        })
 927    }
 928
 929    pub fn weak_handle(&self) -> WeakView<Self> {
 930        self.weak_self.clone()
 931    }
 932
 933    pub fn left_dock(&self) -> &View<Dock> {
 934        &self.left_dock
 935    }
 936
 937    pub fn bottom_dock(&self) -> &View<Dock> {
 938        &self.bottom_dock
 939    }
 940
 941    pub fn right_dock(&self) -> &View<Dock> {
 942        &self.right_dock
 943    }
 944
 945    //     pub fn add_panel<T: Panel>(&mut self, panel: View<T>, cx: &mut ViewContext<Self>)
 946    //     where
 947    //         T::Event: std::fmt::Debug,
 948    //     {
 949    //         self.add_panel_with_extra_event_handler(panel, cx, |_, _, _, _| {})
 950    //     }
 951
 952    //     pub fn add_panel_with_extra_event_handler<T: Panel, F>(
 953    //         &mut self,
 954    //         panel: View<T>,
 955    //         cx: &mut ViewContext<Self>,
 956    //         handler: F,
 957    //     ) where
 958    //         T::Event: std::fmt::Debug,
 959    //         F: Fn(&mut Self, &View<T>, &T::Event, &mut ViewContext<Self>) + 'static,
 960    //     {
 961    //         let dock = match panel.position(cx) {
 962    //             DockPosition::Left => &self.left_dock,
 963    //             DockPosition::Bottom => &self.bottom_dock,
 964    //             DockPosition::Right => &self.right_dock,
 965    //         };
 966
 967    //         self.subscriptions.push(cx.subscribe(&panel, {
 968    //             let mut dock = dock.clone();
 969    //             let mut prev_position = panel.position(cx);
 970    //             move |this, panel, event, cx| {
 971    //                 if T::should_change_position_on_event(event) {
 972    //                     THIS HAS BEEN MOVED TO NORMAL EVENT EMISSION
 973    //                     See: Dock::add_panel
 974    //
 975    //                     let new_position = panel.read(cx).position(cx);
 976    //                     let mut was_visible = false;
 977    //                     dock.update(cx, |dock, cx| {
 978    //                         prev_position = new_position;
 979
 980    //                         was_visible = dock.is_open()
 981    //                             && dock
 982    //                                 .visible_panel()
 983    //                                 .map_or(false, |active_panel| active_panel.id() == panel.id());
 984    //                         dock.remove_panel(&panel, cx);
 985    //                     });
 986
 987    //                     if panel.is_zoomed(cx) {
 988    //                         this.zoomed_position = Some(new_position);
 989    //                     }
 990
 991    //                     dock = match panel.read(cx).position(cx) {
 992    //                         DockPosition::Left => &this.left_dock,
 993    //                         DockPosition::Bottom => &this.bottom_dock,
 994    //                         DockPosition::Right => &this.right_dock,
 995    //                     }
 996    //                     .clone();
 997    //                     dock.update(cx, |dock, cx| {
 998    //                         dock.add_panel(panel.clone(), cx);
 999    //                         if was_visible {
1000    //                             dock.set_open(true, cx);
1001    //                             dock.activate_panel(dock.panels_len() - 1, cx);
1002    //                         }
1003    //                     });
1004    //                 } else if T::should_zoom_in_on_event(event) {
1005    //                     THIS HAS BEEN MOVED TO NORMAL EVENT EMISSION
1006    //                     See: Dock::add_panel
1007    //
1008    //                     dock.update(cx, |dock, cx| dock.set_panel_zoomed(&panel, true, cx));
1009    //                     if !panel.has_focus(cx) {
1010    //                         cx.focus(&panel);
1011    //                     }
1012    //                     this.zoomed = Some(panel.downgrade().into_any());
1013    //                     this.zoomed_position = Some(panel.read(cx).position(cx));
1014    //                 } else if T::should_zoom_out_on_event(event) {
1015    //                     THIS HAS BEEN MOVED TO NORMAL EVENT EMISSION
1016    //                     See: Dock::add_panel
1017    //
1018    //                     dock.update(cx, |dock, cx| dock.set_panel_zoomed(&panel, false, cx));
1019    //                     if this.zoomed_position == Some(prev_position) {
1020    //                         this.zoomed = None;
1021    //                         this.zoomed_position = None;
1022    //                     }
1023    //                     cx.notify();
1024    //                 } else if T::is_focus_event(event) {
1025    //                     THIS HAS BEEN MOVED TO NORMAL EVENT EMISSION
1026    //                     See: Dock::add_panel
1027    //
1028    //                     let position = panel.read(cx).position(cx);
1029    //                     this.dismiss_zoomed_items_to_reveal(Some(position), cx);
1030    //                     if panel.is_zoomed(cx) {
1031    //                         this.zoomed = Some(panel.downgrade().into_any());
1032    //                         this.zoomed_position = Some(position);
1033    //                     } else {
1034    //                         this.zoomed = None;
1035    //                         this.zoomed_position = None;
1036    //                     }
1037    //                     this.update_active_view_for_followers(cx);
1038    //                     cx.notify();
1039    //                 } else {
1040    //                     handler(this, &panel, event, cx)
1041    //                 }
1042    //             }
1043    //         }));
1044
1045    //         dock.update(cx, |dock, cx| dock.add_panel(panel, cx));
1046    //     }
1047
1048    pub fn status_bar(&self) -> &View<StatusBar> {
1049        &self.status_bar
1050    }
1051
1052    pub fn app_state(&self) -> &Arc<AppState> {
1053        &self.app_state
1054    }
1055
1056    pub fn user_store(&self) -> &Model<UserStore> {
1057        &self.app_state.user_store
1058    }
1059
1060    pub fn project(&self) -> &Model<Project> {
1061        &self.project
1062    }
1063
1064    pub fn recent_navigation_history(
1065        &self,
1066        limit: Option<usize>,
1067        cx: &AppContext,
1068    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
1069        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
1070        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
1071        for pane in &self.panes {
1072            let pane = pane.read(cx);
1073            pane.nav_history()
1074                .for_each_entry(cx, |entry, (project_path, fs_path)| {
1075                    if let Some(fs_path) = &fs_path {
1076                        abs_paths_opened
1077                            .entry(fs_path.clone())
1078                            .or_default()
1079                            .insert(project_path.clone());
1080                    }
1081                    let timestamp = entry.timestamp;
1082                    match history.entry(project_path) {
1083                        hash_map::Entry::Occupied(mut entry) => {
1084                            let (_, old_timestamp) = entry.get();
1085                            if &timestamp > old_timestamp {
1086                                entry.insert((fs_path, timestamp));
1087                            }
1088                        }
1089                        hash_map::Entry::Vacant(entry) => {
1090                            entry.insert((fs_path, timestamp));
1091                        }
1092                    }
1093                });
1094        }
1095
1096        history
1097            .into_iter()
1098            .sorted_by_key(|(_, (_, timestamp))| *timestamp)
1099            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
1100            .rev()
1101            .filter(|(history_path, abs_path)| {
1102                let latest_project_path_opened = abs_path
1103                    .as_ref()
1104                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
1105                    .and_then(|project_paths| {
1106                        project_paths
1107                            .iter()
1108                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
1109                    });
1110
1111                match latest_project_path_opened {
1112                    Some(latest_project_path_opened) => latest_project_path_opened == history_path,
1113                    None => true,
1114                }
1115            })
1116            .take(limit.unwrap_or(usize::MAX))
1117            .collect()
1118    }
1119
1120    fn navigate_history(
1121        &mut self,
1122        pane: WeakView<Pane>,
1123        mode: NavigationMode,
1124        cx: &mut ViewContext<Workspace>,
1125    ) -> Task<Result<()>> {
1126        let to_load = if let Some(pane) = pane.upgrade() {
1127            // todo!("focus")
1128            // cx.focus(&pane);
1129
1130            pane.update(cx, |pane, cx| {
1131                loop {
1132                    // Retrieve the weak item handle from the history.
1133                    let entry = pane.nav_history_mut().pop(mode, cx)?;
1134
1135                    // If the item is still present in this pane, then activate it.
1136                    if let Some(index) = entry
1137                        .item
1138                        .upgrade()
1139                        .and_then(|v| pane.index_for_item(v.as_ref()))
1140                    {
1141                        let prev_active_item_index = pane.active_item_index();
1142                        pane.nav_history_mut().set_mode(mode);
1143                        pane.activate_item(index, true, true, cx);
1144                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
1145
1146                        let mut navigated = prev_active_item_index != pane.active_item_index();
1147                        if let Some(data) = entry.data {
1148                            navigated |= pane.active_item()?.navigate(data, cx);
1149                        }
1150
1151                        if navigated {
1152                            break None;
1153                        }
1154                    }
1155                    // If the item is no longer present in this pane, then retrieve its
1156                    // project path in order to reopen it.
1157                    else {
1158                        break pane
1159                            .nav_history()
1160                            .path_for_item(entry.item.id())
1161                            .map(|(project_path, _)| (project_path, entry));
1162                    }
1163                }
1164            })
1165        } else {
1166            None
1167        };
1168
1169        if let Some((project_path, entry)) = to_load {
1170            // If the item was no longer present, then load it again from its previous path.
1171            let task = self.load_path(project_path, cx);
1172            cx.spawn(|workspace, mut cx| async move {
1173                let task = task.await;
1174                let mut navigated = false;
1175                if let Some((project_entry_id, build_item)) = task.log_err() {
1176                    let prev_active_item_id = pane.update(&mut cx, |pane, _| {
1177                        pane.nav_history_mut().set_mode(mode);
1178                        pane.active_item().map(|p| p.id())
1179                    })?;
1180
1181                    pane.update(&mut cx, |pane, cx| {
1182                        let item = pane.open_item(project_entry_id, true, cx, build_item);
1183                        navigated |= Some(item.id()) != prev_active_item_id;
1184                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
1185                        if let Some(data) = entry.data {
1186                            navigated |= item.navigate(data, cx);
1187                        }
1188                    })?;
1189                }
1190
1191                if !navigated {
1192                    workspace
1193                        .update(&mut cx, |workspace, cx| {
1194                            Self::navigate_history(workspace, pane, mode, cx)
1195                        })?
1196                        .await?;
1197                }
1198
1199                Ok(())
1200            })
1201        } else {
1202            Task::ready(Ok(()))
1203        }
1204    }
1205
1206    pub fn go_back(
1207        &mut self,
1208        pane: WeakView<Pane>,
1209        cx: &mut ViewContext<Workspace>,
1210    ) -> Task<Result<()>> {
1211        self.navigate_history(pane, NavigationMode::GoingBack, cx)
1212    }
1213
1214    pub fn go_forward(
1215        &mut self,
1216        pane: WeakView<Pane>,
1217        cx: &mut ViewContext<Workspace>,
1218    ) -> Task<Result<()>> {
1219        self.navigate_history(pane, NavigationMode::GoingForward, cx)
1220    }
1221
1222    pub fn reopen_closed_item(&mut self, cx: &mut ViewContext<Workspace>) -> Task<Result<()>> {
1223        self.navigate_history(
1224            self.active_pane().downgrade(),
1225            NavigationMode::ReopeningClosedItem,
1226            cx,
1227        )
1228    }
1229
1230    pub fn client(&self) -> &Client {
1231        &self.app_state.client
1232    }
1233
1234    // todo!()
1235    // pub fn set_titlebar_item(&mut self, item: AnyViewHandle, cx: &mut ViewContext<Self>) {
1236    //     self.titlebar_item = Some(item);
1237    //     cx.notify();
1238    // }
1239
1240    // pub fn titlebar_item(&self) -> Option<AnyViewHandle> {
1241    //     self.titlebar_item.clone()
1242    // }
1243
1244    //     /// Call the given callback with a workspace whose project is local.
1245    //     ///
1246    //     /// If the given workspace has a local project, then it will be passed
1247    //     /// to the callback. Otherwise, a new empty window will be created.
1248    //     pub fn with_local_workspace<T, F>(
1249    //         &mut self,
1250    //         cx: &mut ViewContext<Self>,
1251    //         callback: F,
1252    //     ) -> Task<Result<T>>
1253    //     where
1254    //         T: 'static,
1255    //         F: 'static + FnOnce(&mut Workspace, &mut ViewContext<Workspace>) -> T,
1256    //     {
1257    //         if self.project.read(cx).is_local() {
1258    //             Task::Ready(Some(Ok(callback(self, cx))))
1259    //         } else {
1260    //             let task = Self::new_local(Vec::new(), self.app_state.clone(), None, cx);
1261    //             cx.spawn(|_vh, mut cx| async move {
1262    //                 let (workspace, _) = task.await;
1263    //                 workspace.update(&mut cx, callback)
1264    //             })
1265    //         }
1266    //     }
1267
1268    pub fn worktrees<'a>(&self, cx: &'a AppContext) -> impl 'a + Iterator<Item = Model<Worktree>> {
1269        self.project.read(cx).worktrees()
1270    }
1271
1272    pub fn visible_worktrees<'a>(
1273        &self,
1274        cx: &'a AppContext,
1275    ) -> impl 'a + Iterator<Item = Model<Worktree>> {
1276        self.project.read(cx).visible_worktrees(cx)
1277    }
1278
1279    pub fn worktree_scans_complete(&self, cx: &AppContext) -> impl Future<Output = ()> + 'static {
1280        let futures = self
1281            .worktrees(cx)
1282            .filter_map(|worktree| worktree.read(cx).as_local())
1283            .map(|worktree| worktree.scan_complete())
1284            .collect::<Vec<_>>();
1285        async move {
1286            for future in futures {
1287                future.await;
1288            }
1289        }
1290    }
1291
1292    //     pub fn close_global(_: &CloseWindow, cx: &mut AppContext) {
1293    //         cx.spawn(|mut cx| async move {
1294    //             let window = cx
1295    //                 .windows()
1296    //                 .into_iter()
1297    //                 .find(|window| window.is_active(&cx).unwrap_or(false));
1298    //             if let Some(window) = window {
1299    //                 //This can only get called when the window's project connection has been lost
1300    //                 //so we don't need to prompt the user for anything and instead just close the window
1301    //                 window.remove(&mut cx);
1302    //             }
1303    //         })
1304    //         .detach();
1305    //     }
1306
1307    //     pub fn close(
1308    //         &mut self,
1309    //         _: &CloseWindow,
1310    //         cx: &mut ViewContext<Self>,
1311    //     ) -> Option<Task<Result<()>>> {
1312    //         let window = cx.window();
1313    //         let prepare = self.prepare_to_close(false, cx);
1314    //         Some(cx.spawn(|_, mut cx| async move {
1315    //             if prepare.await? {
1316    //                 window.remove(&mut cx);
1317    //             }
1318    //             Ok(())
1319    //         }))
1320    //     }
1321
1322    pub fn prepare_to_close(
1323        &mut self,
1324        quitting: bool,
1325        cx: &mut ViewContext<Self>,
1326    ) -> Task<Result<bool>> {
1327        //todo!(saveing)
1328        // let active_call = self.active_call().cloned();
1329        // let window = cx.window();
1330
1331        cx.spawn(|this, mut cx| async move {
1332            // let workspace_count = cx
1333            //     .windows()
1334            //     .into_iter()
1335            //     .filter(|window| window.root_is::<Workspace>())
1336            //     .count();
1337
1338            // if let Some(active_call) = active_call {
1339            //     if !quitting
1340            //         && workspace_count == 1
1341            //         && active_call.read_with(&cx, |call, _| call.room().is_some())
1342            //     {
1343            //         let answer = window.prompt(
1344            //             PromptLevel::Warning,
1345            //             "Do you want to leave the current call?",
1346            //             &["Close window and hang up", "Cancel"],
1347            //             &mut cx,
1348            //         );
1349
1350            //         if let Some(mut answer) = answer {
1351            //             if answer.next().await == Some(1) {
1352            //                 return anyhow::Ok(false);
1353            //             } else {
1354            //                 active_call
1355            //                     .update(&mut cx, |call, cx| call.hang_up(cx))
1356            //                     .await
1357            //                     .log_err();
1358            //             }
1359            //         }
1360            //     }
1361            // }
1362
1363            Ok(
1364                false, // this
1365                      // .update(&mut cx, |this, cx| {
1366                      //     this.save_all_internal(SaveIntent::Close, cx)
1367                      // })?
1368                      // .await?
1369            )
1370        })
1371    }
1372
1373    //     fn save_all(
1374    //         &mut self,
1375    //         action: &SaveAll,
1376    //         cx: &mut ViewContext<Self>,
1377    //     ) -> Option<Task<Result<()>>> {
1378    //         let save_all =
1379    //             self.save_all_internal(action.save_intent.unwrap_or(SaveIntent::SaveAll), cx);
1380    //         Some(cx.foreground().spawn(async move {
1381    //             save_all.await?;
1382    //             Ok(())
1383    //         }))
1384    //     }
1385
1386    //     fn save_all_internal(
1387    //         &mut self,
1388    //         mut save_intent: SaveIntent,
1389    //         cx: &mut ViewContext<Self>,
1390    //     ) -> Task<Result<bool>> {
1391    //         if self.project.read(cx).is_read_only() {
1392    //             return Task::ready(Ok(true));
1393    //         }
1394    //         let dirty_items = self
1395    //             .panes
1396    //             .iter()
1397    //             .flat_map(|pane| {
1398    //                 pane.read(cx).items().filter_map(|item| {
1399    //                     if item.is_dirty(cx) {
1400    //                         Some((pane.downgrade(), item.boxed_clone()))
1401    //                     } else {
1402    //                         None
1403    //                     }
1404    //                 })
1405    //             })
1406    //             .collect::<Vec<_>>();
1407
1408    //         let project = self.project.clone();
1409    //         cx.spawn(|workspace, mut cx| async move {
1410    //             // Override save mode and display "Save all files" prompt
1411    //             if save_intent == SaveIntent::Close && dirty_items.len() > 1 {
1412    //                 let mut answer = workspace.update(&mut cx, |_, cx| {
1413    //                     let prompt = Pane::file_names_for_prompt(
1414    //                         &mut dirty_items.iter().map(|(_, handle)| handle),
1415    //                         dirty_items.len(),
1416    //                         cx,
1417    //                     );
1418    //                     cx.prompt(
1419    //                         PromptLevel::Warning,
1420    //                         &prompt,
1421    //                         &["Save all", "Discard all", "Cancel"],
1422    //                     )
1423    //                 })?;
1424    //                 match answer.next().await {
1425    //                     Some(0) => save_intent = SaveIntent::SaveAll,
1426    //                     Some(1) => save_intent = SaveIntent::Skip,
1427    //                     _ => {}
1428    //                 }
1429    //             }
1430    //             for (pane, item) in dirty_items {
1431    //                 let (singleton, project_entry_ids) =
1432    //                     cx.read(|cx| (item.is_singleton(cx), item.project_entry_ids(cx)));
1433    //                 if singleton || !project_entry_ids.is_empty() {
1434    //                     if let Some(ix) =
1435    //                         pane.read_with(&cx, |pane, _| pane.index_for_item(item.as_ref()))?
1436    //                     {
1437    //                         if !Pane::save_item(
1438    //                             project.clone(),
1439    //                             &pane,
1440    //                             ix,
1441    //                             &*item,
1442    //                             save_intent,
1443    //                             &mut cx,
1444    //                         )
1445    //                         .await?
1446    //                         {
1447    //                             return Ok(false);
1448    //                         }
1449    //                     }
1450    //                 }
1451    //             }
1452    //             Ok(true)
1453    //         })
1454    //     }
1455
1456    //     pub fn open(&mut self, _: &Open, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
1457    //         let mut paths = cx.prompt_for_paths(PathPromptOptions {
1458    //             files: true,
1459    //             directories: true,
1460    //             multiple: true,
1461    //         });
1462
1463    //         Some(cx.spawn(|this, mut cx| async move {
1464    //             if let Some(paths) = paths.recv().await.flatten() {
1465    //                 if let Some(task) = this
1466    //                     .update(&mut cx, |this, cx| this.open_workspace_for_paths(paths, cx))
1467    //                     .log_err()
1468    //                 {
1469    //                     task.await?
1470    //                 }
1471    //             }
1472    //             Ok(())
1473    //         }))
1474    //     }
1475
1476    //     pub fn open_workspace_for_paths(
1477    //         &mut self,
1478    //         paths: Vec<PathBuf>,
1479    //         cx: &mut ViewContext<Self>,
1480    //     ) -> Task<Result<()>> {
1481    //         let window = cx.window().downcast::<Self>();
1482    //         let is_remote = self.project.read(cx).is_remote();
1483    //         let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
1484    //         let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
1485    //         let close_task = if is_remote || has_worktree || has_dirty_items {
1486    //             None
1487    //         } else {
1488    //             Some(self.prepare_to_close(false, cx))
1489    //         };
1490    //         let app_state = self.app_state.clone();
1491
1492    //         cx.spawn(|_, mut cx| async move {
1493    //             let window_to_replace = if let Some(close_task) = close_task {
1494    //                 if !close_task.await? {
1495    //                     return Ok(());
1496    //                 }
1497    //                 window
1498    //             } else {
1499    //                 None
1500    //             };
1501    //             cx.update(|cx| open_paths(&paths, &app_state, window_to_replace, cx))
1502    //                 .await?;
1503    //             Ok(())
1504    //         })
1505    //     }
1506
1507    #[allow(clippy::type_complexity)]
1508    pub fn open_paths(
1509        &mut self,
1510        mut abs_paths: Vec<PathBuf>,
1511        visible: bool,
1512        cx: &mut ViewContext<Self>,
1513    ) -> Task<Vec<Option<Result<Box<dyn ItemHandle>, anyhow::Error>>>> {
1514        log::info!("open paths {abs_paths:?}");
1515
1516        let fs = self.app_state.fs.clone();
1517
1518        // Sort the paths to ensure we add worktrees for parents before their children.
1519        abs_paths.sort_unstable();
1520        cx.spawn(move |this, mut cx| async move {
1521            let mut tasks = Vec::with_capacity(abs_paths.len());
1522            for abs_path in &abs_paths {
1523                let project_path = match this
1524                    .update(&mut cx, |this, cx| {
1525                        Workspace::project_path_for_path(
1526                            this.project.clone(),
1527                            abs_path,
1528                            visible,
1529                            cx,
1530                        )
1531                    })
1532                    .log_err()
1533                {
1534                    Some(project_path) => project_path.await.log_err(),
1535                    None => None,
1536                };
1537
1538                let this = this.clone();
1539                let abs_path = abs_path.clone();
1540                let fs = fs.clone();
1541                let task = cx.spawn(move |mut cx| async move {
1542                    let (worktree, project_path) = project_path?;
1543                    if fs.is_file(&abs_path).await {
1544                        Some(
1545                            this.update(&mut cx, |this, cx| {
1546                                this.open_path(project_path, None, true, cx)
1547                            })
1548                            .log_err()?
1549                            .await,
1550                        )
1551                    } else {
1552                        this.update(&mut cx, |workspace, cx| {
1553                            let worktree = worktree.read(cx);
1554                            let worktree_abs_path = worktree.abs_path();
1555                            let entry_id = if abs_path == worktree_abs_path.as_ref() {
1556                                worktree.root_entry()
1557                            } else {
1558                                abs_path
1559                                    .strip_prefix(worktree_abs_path.as_ref())
1560                                    .ok()
1561                                    .and_then(|relative_path| {
1562                                        worktree.entry_for_path(relative_path)
1563                                    })
1564                            }
1565                            .map(|entry| entry.id);
1566                            if let Some(entry_id) = entry_id {
1567                                workspace.project.update(cx, |_, cx| {
1568                                    cx.emit(project2::Event::ActiveEntryChanged(Some(entry_id)));
1569                                })
1570                            }
1571                        })
1572                        .log_err()?;
1573                        None
1574                    }
1575                });
1576                tasks.push(task);
1577            }
1578
1579            futures::future::join_all(tasks).await
1580        })
1581    }
1582
1583    //     fn add_folder_to_project(&mut self, _: &AddFolderToProject, cx: &mut ViewContext<Self>) {
1584    //         let mut paths = cx.prompt_for_paths(PathPromptOptions {
1585    //             files: false,
1586    //             directories: true,
1587    //             multiple: true,
1588    //         });
1589    //         cx.spawn(|this, mut cx| async move {
1590    //             if let Some(paths) = paths.recv().await.flatten() {
1591    //                 let results = this
1592    //                     .update(&mut cx, |this, cx| this.open_paths(paths, true, cx))?
1593    //                     .await;
1594    //                 for result in results.into_iter().flatten() {
1595    //                     result.log_err();
1596    //                 }
1597    //             }
1598    //             anyhow::Ok(())
1599    //         })
1600    //         .detach_and_log_err(cx);
1601    //     }
1602
1603    fn project_path_for_path(
1604        project: Model<Project>,
1605        abs_path: &Path,
1606        visible: bool,
1607        cx: &mut AppContext,
1608    ) -> Task<Result<(Model<Worktree>, ProjectPath)>> {
1609        let entry = project.update(cx, |project, cx| {
1610            project.find_or_create_local_worktree(abs_path, visible, cx)
1611        });
1612        cx.spawn(|mut cx| async move {
1613            let (worktree, path) = entry.await?;
1614            let worktree_id = worktree.update(&mut cx, |t, _| t.id())?;
1615            Ok((
1616                worktree,
1617                ProjectPath {
1618                    worktree_id,
1619                    path: path.into(),
1620                },
1621            ))
1622        })
1623    }
1624
1625    pub fn items<'a>(
1626        &'a self,
1627        cx: &'a AppContext,
1628    ) -> impl 'a + Iterator<Item = &Box<dyn ItemHandle>> {
1629        self.panes.iter().flat_map(|pane| pane.read(cx).items())
1630    }
1631
1632    //     pub fn item_of_type<T: Item>(&self, cx: &AppContext) -> Option<View<T>> {
1633    //         self.items_of_type(cx).max_by_key(|item| item.id())
1634    //     }
1635
1636    //     pub fn items_of_type<'a, T: Item>(
1637    //         &'a self,
1638    //         cx: &'a AppContext,
1639    //     ) -> impl 'a + Iterator<Item = View<T>> {
1640    //         self.panes
1641    //             .iter()
1642    //             .flat_map(|pane| pane.read(cx).items_of_type())
1643    //     }
1644
1645    pub fn active_item(&self, cx: &AppContext) -> Option<Box<dyn ItemHandle>> {
1646        self.active_pane().read(cx).active_item()
1647    }
1648
1649    fn active_project_path(&self, cx: &ViewContext<Self>) -> Option<ProjectPath> {
1650        self.active_item(cx).and_then(|item| item.project_path(cx))
1651    }
1652
1653    pub fn save_active_item(
1654        &mut self,
1655        save_intent: SaveIntent,
1656        cx: &mut ViewContext<Self>,
1657    ) -> Task<Result<()>> {
1658        let project = self.project.clone();
1659        let pane = self.active_pane();
1660        let item_ix = pane.read(cx).active_item_index();
1661        let item = pane.read(cx).active_item();
1662        let pane = pane.downgrade();
1663
1664        cx.spawn(|_, mut cx| async move {
1665            if let Some(item) = item {
1666                Pane::save_item(project, &pane, item_ix, item.as_ref(), save_intent, &mut cx)
1667                    .await
1668                    .map(|_| ())
1669            } else {
1670                Ok(())
1671            }
1672        })
1673    }
1674
1675    //     pub fn close_inactive_items_and_panes(
1676    //         &mut self,
1677    //         _: &CloseInactiveTabsAndPanes,
1678    //         cx: &mut ViewContext<Self>,
1679    //     ) -> Option<Task<Result<()>>> {
1680    //         self.close_all_internal(true, SaveIntent::Close, cx)
1681    //     }
1682
1683    //     pub fn close_all_items_and_panes(
1684    //         &mut self,
1685    //         action: &CloseAllItemsAndPanes,
1686    //         cx: &mut ViewContext<Self>,
1687    //     ) -> Option<Task<Result<()>>> {
1688    //         self.close_all_internal(false, action.save_intent.unwrap_or(SaveIntent::Close), cx)
1689    //     }
1690
1691    //     fn close_all_internal(
1692    //         &mut self,
1693    //         retain_active_pane: bool,
1694    //         save_intent: SaveIntent,
1695    //         cx: &mut ViewContext<Self>,
1696    //     ) -> Option<Task<Result<()>>> {
1697    //         let current_pane = self.active_pane();
1698
1699    //         let mut tasks = Vec::new();
1700
1701    //         if retain_active_pane {
1702    //             if let Some(current_pane_close) = current_pane.update(cx, |pane, cx| {
1703    //                 pane.close_inactive_items(&CloseInactiveItems, cx)
1704    //             }) {
1705    //                 tasks.push(current_pane_close);
1706    //             };
1707    //         }
1708
1709    //         for pane in self.panes() {
1710    //             if retain_active_pane && pane.id() == current_pane.id() {
1711    //                 continue;
1712    //             }
1713
1714    //             if let Some(close_pane_items) = pane.update(cx, |pane: &mut Pane, cx| {
1715    //                 pane.close_all_items(
1716    //                     &CloseAllItems {
1717    //                         save_intent: Some(save_intent),
1718    //                     },
1719    //                     cx,
1720    //                 )
1721    //             }) {
1722    //                 tasks.push(close_pane_items)
1723    //             }
1724    //         }
1725
1726    //         if tasks.is_empty() {
1727    //             None
1728    //         } else {
1729    //             Some(cx.spawn(|_, _| async move {
1730    //                 for task in tasks {
1731    //                     task.await?
1732    //                 }
1733    //                 Ok(())
1734    //             }))
1735    //         }
1736    //     }
1737
1738    //     pub fn toggle_dock(&mut self, dock_side: DockPosition, cx: &mut ViewContext<Self>) {
1739    //         let dock = match dock_side {
1740    //             DockPosition::Left => &self.left_dock,
1741    //             DockPosition::Bottom => &self.bottom_dock,
1742    //             DockPosition::Right => &self.right_dock,
1743    //         };
1744    //         let mut focus_center = false;
1745    //         let mut reveal_dock = false;
1746    //         dock.update(cx, |dock, cx| {
1747    //             let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
1748    //             let was_visible = dock.is_open() && !other_is_zoomed;
1749    //             dock.set_open(!was_visible, cx);
1750
1751    //             if let Some(active_panel) = dock.active_panel() {
1752    //                 if was_visible {
1753    //                     if active_panel.has_focus(cx) {
1754    //                         focus_center = true;
1755    //                     }
1756    //                 } else {
1757    //                     cx.focus(active_panel.as_any());
1758    //                     reveal_dock = true;
1759    //                 }
1760    //             }
1761    //         });
1762
1763    //         if reveal_dock {
1764    //             self.dismiss_zoomed_items_to_reveal(Some(dock_side), cx);
1765    //         }
1766
1767    //         if focus_center {
1768    //             cx.focus_self();
1769    //         }
1770
1771    //         cx.notify();
1772    //         self.serialize_workspace(cx);
1773    //     }
1774
1775    pub fn close_all_docks(&mut self, cx: &mut ViewContext<Self>) {
1776        let docks = [&self.left_dock, &self.bottom_dock, &self.right_dock];
1777
1778        for dock in docks {
1779            dock.update(cx, |dock, cx| {
1780                dock.set_open(false, cx);
1781            });
1782        }
1783
1784        // todo!("focus")
1785        // cx.focus_self();
1786        cx.notify();
1787        self.serialize_workspace(cx);
1788    }
1789
1790    //     /// Transfer focus to the panel of the given type.
1791    //     pub fn focus_panel<T: Panel>(&mut self, cx: &mut ViewContext<Self>) -> Option<View<T>> {
1792    //         self.focus_or_unfocus_panel::<T>(cx, |_, _| true)?
1793    //             .as_any()
1794    //             .clone()
1795    //             .downcast()
1796    //     }
1797
1798    //     /// Focus the panel of the given type if it isn't already focused. If it is
1799    //     /// already focused, then transfer focus back to the workspace center.
1800    //     pub fn toggle_panel_focus<T: Panel>(&mut self, cx: &mut ViewContext<Self>) {
1801    //         self.focus_or_unfocus_panel::<T>(cx, |panel, cx| !panel.has_focus(cx));
1802    //     }
1803
1804    //     /// Focus or unfocus the given panel type, depending on the given callback.
1805    //     fn focus_or_unfocus_panel<T: Panel>(
1806    //         &mut self,
1807    //         cx: &mut ViewContext<Self>,
1808    //         should_focus: impl Fn(&dyn PanelHandle, &mut ViewContext<Dock>) -> bool,
1809    //     ) -> Option<Rc<dyn PanelHandle>> {
1810    //         for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
1811    //             if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
1812    //                 let mut focus_center = false;
1813    //                 let mut reveal_dock = false;
1814    //                 let panel = dock.update(cx, |dock, cx| {
1815    //                     dock.activate_panel(panel_index, cx);
1816
1817    //                     let panel = dock.active_panel().cloned();
1818    //                     if let Some(panel) = panel.as_ref() {
1819    //                         if should_focus(&**panel, cx) {
1820    //                             dock.set_open(true, cx);
1821    //                             cx.focus(panel.as_any());
1822    //                             reveal_dock = true;
1823    //                         } else {
1824    //                             // if panel.is_zoomed(cx) {
1825    //                             //     dock.set_open(false, cx);
1826    //                             // }
1827    //                             focus_center = true;
1828    //                         }
1829    //                     }
1830    //                     panel
1831    //                 });
1832
1833    //                 if focus_center {
1834    //                     cx.focus_self();
1835    //                 }
1836
1837    //                 self.serialize_workspace(cx);
1838    //                 cx.notify();
1839    //                 return panel;
1840    //             }
1841    //         }
1842    //         None
1843    //     }
1844
1845    //     pub fn panel<T: Panel>(&self, cx: &WindowContext) -> Option<View<T>> {
1846    //         for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
1847    //             let dock = dock.read(cx);
1848    //             if let Some(panel) = dock.panel::<T>() {
1849    //                 return Some(panel);
1850    //             }
1851    //         }
1852    //         None
1853    //     }
1854
1855    fn zoom_out(&mut self, cx: &mut ViewContext<Self>) {
1856        for pane in &self.panes {
1857            pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
1858        }
1859
1860        self.left_dock.update(cx, |dock, cx| dock.zoom_out(cx));
1861        self.bottom_dock.update(cx, |dock, cx| dock.zoom_out(cx));
1862        self.right_dock.update(cx, |dock, cx| dock.zoom_out(cx));
1863        self.zoomed = None;
1864        self.zoomed_position = None;
1865
1866        cx.notify();
1867    }
1868
1869    //     #[cfg(any(test, feature = "test-support"))]
1870    //     pub fn zoomed_view(&self, cx: &AppContext) -> Option<AnyViewHandle> {
1871    //         self.zoomed.and_then(|view| view.upgrade(cx))
1872    //     }
1873
1874    fn dismiss_zoomed_items_to_reveal(
1875        &mut self,
1876        dock_to_reveal: Option<DockPosition>,
1877        cx: &mut ViewContext<Self>,
1878    ) {
1879        // If a center pane is zoomed, unzoom it.
1880        for pane in &self.panes {
1881            if pane != &self.active_pane || dock_to_reveal.is_some() {
1882                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
1883            }
1884        }
1885
1886        // If another dock is zoomed, hide it.
1887        let mut focus_center = false;
1888        for dock in [&self.left_dock, &self.right_dock, &self.bottom_dock] {
1889            dock.update(cx, |dock, cx| {
1890                if Some(dock.position()) != dock_to_reveal {
1891                    if let Some(panel) = dock.active_panel() {
1892                        if panel.is_zoomed(cx) {
1893                            focus_center |= panel.has_focus(cx);
1894                            dock.set_open(false, cx);
1895                        }
1896                    }
1897                }
1898            });
1899        }
1900
1901        if focus_center {
1902            cx.focus(&self.focus_handle);
1903        }
1904
1905        if self.zoomed_position != dock_to_reveal {
1906            self.zoomed = None;
1907            self.zoomed_position = None;
1908        }
1909
1910        cx.notify();
1911    }
1912
1913    fn add_pane(&mut self, cx: &mut ViewContext<Self>) -> View<Pane> {
1914        let pane = cx.build_view(|cx| {
1915            Pane::new(
1916                self.weak_handle(),
1917                self.project.clone(),
1918                self.pane_history_timestamp.clone(),
1919                cx,
1920            )
1921        });
1922        cx.subscribe(&pane, Self::handle_pane_event).detach();
1923        self.panes.push(pane.clone());
1924        // todo!()
1925        // cx.focus(&pane);
1926        cx.emit(Event::PaneAdded(pane.clone()));
1927        pane
1928    }
1929
1930    //     pub fn add_item_to_center(
1931    //         &mut self,
1932    //         item: Box<dyn ItemHandle>,
1933    //         cx: &mut ViewContext<Self>,
1934    //     ) -> bool {
1935    //         if let Some(center_pane) = self.last_active_center_pane.clone() {
1936    //             if let Some(center_pane) = center_pane.upgrade(cx) {
1937    //                 center_pane.update(cx, |pane, cx| pane.add_item(item, true, true, None, cx));
1938    //                 true
1939    //             } else {
1940    //                 false
1941    //             }
1942    //         } else {
1943    //             false
1944    //         }
1945    //     }
1946
1947    pub fn add_item(&mut self, item: Box<dyn ItemHandle>, cx: &mut ViewContext<Self>) {
1948        self.active_pane
1949            .update(cx, |pane, cx| pane.add_item(item, true, true, None, cx));
1950    }
1951
1952    pub fn split_item(
1953        &mut self,
1954        split_direction: SplitDirection,
1955        item: Box<dyn ItemHandle>,
1956        cx: &mut ViewContext<Self>,
1957    ) {
1958        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, cx);
1959        new_pane.update(cx, move |new_pane, cx| {
1960            new_pane.add_item(item, true, true, None, cx)
1961        })
1962    }
1963
1964    //     pub fn open_abs_path(
1965    //         &mut self,
1966    //         abs_path: PathBuf,
1967    //         visible: bool,
1968    //         cx: &mut ViewContext<Self>,
1969    //     ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
1970    //         cx.spawn(|workspace, mut cx| async move {
1971    //             let open_paths_task_result = workspace
1972    //                 .update(&mut cx, |workspace, cx| {
1973    //                     workspace.open_paths(vec![abs_path.clone()], visible, cx)
1974    //                 })
1975    //                 .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
1976    //                 .await;
1977    //             anyhow::ensure!(
1978    //                 open_paths_task_result.len() == 1,
1979    //                 "open abs path {abs_path:?} task returned incorrect number of results"
1980    //             );
1981    //             match open_paths_task_result
1982    //                 .into_iter()
1983    //                 .next()
1984    //                 .expect("ensured single task result")
1985    //             {
1986    //                 Some(open_result) => {
1987    //                     open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
1988    //                 }
1989    //                 None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
1990    //             }
1991    //         })
1992    //     }
1993
1994    //     pub fn split_abs_path(
1995    //         &mut self,
1996    //         abs_path: PathBuf,
1997    //         visible: bool,
1998    //         cx: &mut ViewContext<Self>,
1999    //     ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
2000    //         let project_path_task =
2001    //             Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
2002    //         cx.spawn(|this, mut cx| async move {
2003    //             let (_, path) = project_path_task.await?;
2004    //             this.update(&mut cx, |this, cx| this.split_path(path, cx))?
2005    //                 .await
2006    //         })
2007    //     }
2008
2009    pub fn open_path(
2010        &mut self,
2011        path: impl Into<ProjectPath>,
2012        pane: Option<WeakView<Pane>>,
2013        focus_item: bool,
2014        cx: &mut ViewContext<Self>,
2015    ) -> Task<Result<Box<dyn ItemHandle>, anyhow::Error>> {
2016        let pane = pane.unwrap_or_else(|| {
2017            self.last_active_center_pane.clone().unwrap_or_else(|| {
2018                self.panes
2019                    .first()
2020                    .expect("There must be an active pane")
2021                    .downgrade()
2022            })
2023        });
2024
2025        let task = self.load_path(path.into(), cx);
2026        cx.spawn(move |_, mut cx| async move {
2027            let (project_entry_id, build_item) = task.await?;
2028            pane.update(&mut cx, |pane, cx| {
2029                pane.open_item(project_entry_id, focus_item, cx, build_item)
2030            })
2031        })
2032    }
2033
2034    //     pub fn split_path(
2035    //         &mut self,
2036    //         path: impl Into<ProjectPath>,
2037    //         cx: &mut ViewContext<Self>,
2038    //     ) -> Task<Result<Box<dyn ItemHandle>, anyhow::Error>> {
2039    //         let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
2040    //             self.panes
2041    //                 .first()
2042    //                 .expect("There must be an active pane")
2043    //                 .downgrade()
2044    //         });
2045
2046    //         if let Member::Pane(center_pane) = &self.center.root {
2047    //             if center_pane.read(cx).items_len() == 0 {
2048    //                 return self.open_path(path, Some(pane), true, cx);
2049    //             }
2050    //         }
2051
2052    //         let task = self.load_path(path.into(), cx);
2053    //         cx.spawn(|this, mut cx| async move {
2054    //             let (project_entry_id, build_item) = task.await?;
2055    //             this.update(&mut cx, move |this, cx| -> Option<_> {
2056    //                 let pane = pane.upgrade(cx)?;
2057    //                 let new_pane = this.split_pane(pane, SplitDirection::Right, cx);
2058    //                 new_pane.update(cx, |new_pane, cx| {
2059    //                     Some(new_pane.open_item(project_entry_id, true, cx, build_item))
2060    //                 })
2061    //             })
2062    //             .map(|option| option.ok_or_else(|| anyhow!("pane was dropped")))?
2063    //         })
2064    //     }
2065
2066    pub(crate) fn load_path(
2067        &mut self,
2068        path: ProjectPath,
2069        cx: &mut ViewContext<Self>,
2070    ) -> Task<
2071        Result<(
2072            ProjectEntryId,
2073            impl 'static + Send + FnOnce(&mut ViewContext<Pane>) -> Box<dyn ItemHandle>,
2074        )>,
2075    > {
2076        let project = self.project().clone();
2077        let project_item = project.update(cx, |project, cx| project.open_path(path, cx));
2078        cx.spawn(|_, mut cx| async move {
2079            let (project_entry_id, project_item) = project_item.await?;
2080            let build_item = cx.update(|_, cx| {
2081                cx.default_global::<ProjectItemBuilders>()
2082                    .get(&project_item.entity_type())
2083                    .ok_or_else(|| anyhow!("no item builder for project item"))
2084                    .cloned()
2085            })??;
2086            let build_item =
2087                move |cx: &mut ViewContext<Pane>| build_item(project, project_item, cx);
2088            Ok((project_entry_id, build_item))
2089        })
2090    }
2091
2092    pub fn open_project_item<T>(
2093        &mut self,
2094        project_item: Model<T::Item>,
2095        cx: &mut ViewContext<Self>,
2096    ) -> View<T>
2097    where
2098        T: ProjectItem,
2099    {
2100        use project2::Item as _;
2101
2102        let entry_id = project_item.read(cx).entry_id(cx);
2103        if let Some(item) = entry_id
2104            .and_then(|entry_id| self.active_pane().read(cx).item_for_entry(entry_id, cx))
2105            .and_then(|item| item.downcast())
2106        {
2107            self.activate_item(&item, cx);
2108            return item;
2109        }
2110
2111        let item =
2112            cx.build_view(|cx| T::for_project_item(self.project().clone(), project_item, cx));
2113        self.add_item(Box::new(item.clone()), cx);
2114        item
2115    }
2116
2117    pub fn split_project_item<T>(
2118        &mut self,
2119        project_item: Model<T::Item>,
2120        cx: &mut ViewContext<Self>,
2121    ) -> View<T>
2122    where
2123        T: ProjectItem,
2124    {
2125        use project2::Item as _;
2126
2127        let entry_id = project_item.read(cx).entry_id(cx);
2128        if let Some(item) = entry_id
2129            .and_then(|entry_id| self.active_pane().read(cx).item_for_entry(entry_id, cx))
2130            .and_then(|item| item.downcast())
2131        {
2132            self.activate_item(&item, cx);
2133            return item;
2134        }
2135
2136        let item =
2137            cx.build_view(|cx| T::for_project_item(self.project().clone(), project_item, cx));
2138        self.split_item(SplitDirection::Right, Box::new(item.clone()), cx);
2139        item
2140    }
2141
2142    //     pub fn open_shared_screen(&mut self, peer_id: PeerId, cx: &mut ViewContext<Self>) {
2143    //         if let Some(shared_screen) = self.shared_screen_for_peer(peer_id, &self.active_pane, cx) {
2144    //             self.active_pane.update(cx, |pane, cx| {
2145    //                 pane.add_item(Box::new(shared_screen), false, true, None, cx)
2146    //             });
2147    //         }
2148    //     }
2149
2150    pub fn activate_item(&mut self, item: &dyn ItemHandle, cx: &mut ViewContext<Self>) -> bool {
2151        let result = self.panes.iter().find_map(|pane| {
2152            pane.read(cx)
2153                .index_for_item(item)
2154                .map(|ix| (pane.clone(), ix))
2155        });
2156        if let Some((pane, ix)) = result {
2157            pane.update(cx, |pane, cx| pane.activate_item(ix, true, true, cx));
2158            true
2159        } else {
2160            false
2161        }
2162    }
2163
2164    //     fn activate_pane_at_index(&mut self, action: &ActivatePane, cx: &mut ViewContext<Self>) {
2165    //         let panes = self.center.panes();
2166    //         if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
2167    //             cx.focus(&pane);
2168    //         } else {
2169    //             self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, cx);
2170    //         }
2171    //     }
2172
2173    //     pub fn activate_next_pane(&mut self, cx: &mut ViewContext<Self>) {
2174    //         let panes = self.center.panes();
2175    //         if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
2176    //             let next_ix = (ix + 1) % panes.len();
2177    //             let next_pane = panes[next_ix].clone();
2178    //             cx.focus(&next_pane);
2179    //         }
2180    //     }
2181
2182    //     pub fn activate_previous_pane(&mut self, cx: &mut ViewContext<Self>) {
2183    //         let panes = self.center.panes();
2184    //         if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
2185    //             let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
2186    //             let prev_pane = panes[prev_ix].clone();
2187    //             cx.focus(&prev_pane);
2188    //         }
2189    //     }
2190
2191    //     pub fn activate_pane_in_direction(
2192    //         &mut self,
2193    //         direction: SplitDirection,
2194    //         cx: &mut ViewContext<Self>,
2195    //     ) {
2196    //         if let Some(pane) = self.find_pane_in_direction(direction, cx) {
2197    //             cx.focus(pane);
2198    //         }
2199    //     }
2200
2201    //     pub fn swap_pane_in_direction(
2202    //         &mut self,
2203    //         direction: SplitDirection,
2204    //         cx: &mut ViewContext<Self>,
2205    //     ) {
2206    //         if let Some(to) = self
2207    //             .find_pane_in_direction(direction, cx)
2208    //             .map(|pane| pane.clone())
2209    //         {
2210    //             self.center.swap(&self.active_pane.clone(), &to);
2211    //             cx.notify();
2212    //         }
2213    //     }
2214
2215    //     fn find_pane_in_direction(
2216    //         &mut self,
2217    //         direction: SplitDirection,
2218    //         cx: &mut ViewContext<Self>,
2219    //     ) -> Option<&View<Pane>> {
2220    //         let Some(bounding_box) = self.center.bounding_box_for_pane(&self.active_pane) else {
2221    //             return None;
2222    //         };
2223    //         let cursor = self.active_pane.read(cx).pixel_position_of_cursor(cx);
2224    //         let center = match cursor {
2225    //             Some(cursor) if bounding_box.contains_point(cursor) => cursor,
2226    //             _ => bounding_box.center(),
2227    //         };
2228
2229    //         let distance_to_next = theme::current(cx).workspace.pane_divider.width + 1.;
2230
2231    //         let target = match direction {
2232    //             SplitDirection::Left => vec2f(bounding_box.origin_x() - distance_to_next, center.y()),
2233    //             SplitDirection::Right => vec2f(bounding_box.max_x() + distance_to_next, center.y()),
2234    //             SplitDirection::Up => vec2f(center.x(), bounding_box.origin_y() - distance_to_next),
2235    //             SplitDirection::Down => vec2f(center.x(), bounding_box.max_y() + distance_to_next),
2236    //         };
2237    //         self.center.pane_at_pixel_position(target)
2238    //     }
2239
2240    fn handle_pane_focused(&mut self, pane: View<Pane>, cx: &mut ViewContext<Self>) {
2241        if self.active_pane != pane {
2242            self.active_pane = pane.clone();
2243            self.status_bar.update(cx, |status_bar, cx| {
2244                status_bar.set_active_pane(&self.active_pane, cx);
2245            });
2246            self.active_item_path_changed(cx);
2247            self.last_active_center_pane = Some(pane.downgrade());
2248        }
2249
2250        self.dismiss_zoomed_items_to_reveal(None, cx);
2251        if pane.read(cx).is_zoomed() {
2252            self.zoomed = Some(pane.downgrade().into());
2253        } else {
2254            self.zoomed = None;
2255        }
2256        self.zoomed_position = None;
2257        self.update_active_view_for_followers(cx);
2258
2259        cx.notify();
2260    }
2261
2262    fn handle_pane_event(
2263        &mut self,
2264        pane: View<Pane>,
2265        event: &pane::Event,
2266        cx: &mut ViewContext<Self>,
2267    ) {
2268        match event {
2269            pane::Event::AddItem { item } => item.added_to_pane(self, pane, cx),
2270            pane::Event::Split(direction) => {
2271                self.split_and_clone(pane, *direction, cx);
2272            }
2273            pane::Event::Remove => self.remove_pane(pane, cx),
2274            pane::Event::ActivateItem { local } => {
2275                if *local {
2276                    self.unfollow(&pane, cx);
2277                }
2278                if &pane == self.active_pane() {
2279                    self.active_item_path_changed(cx);
2280                }
2281            }
2282            pane::Event::ChangeItemTitle => {
2283                if pane == self.active_pane {
2284                    self.active_item_path_changed(cx);
2285                }
2286                self.update_window_edited(cx);
2287            }
2288            pane::Event::RemoveItem { item_id } => {
2289                self.update_window_edited(cx);
2290                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(*item_id) {
2291                    if entry.get().entity_id() == pane.entity_id() {
2292                        entry.remove();
2293                    }
2294                }
2295            }
2296            pane::Event::Focus => {
2297                self.handle_pane_focused(pane.clone(), cx);
2298            }
2299            pane::Event::ZoomIn => {
2300                if pane == self.active_pane {
2301                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
2302                    if pane.read(cx).has_focus(cx) {
2303                        self.zoomed = Some(pane.downgrade().into());
2304                        self.zoomed_position = None;
2305                    }
2306                    cx.notify();
2307                }
2308            }
2309            pane::Event::ZoomOut => {
2310                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
2311                if self.zoomed_position.is_none() {
2312                    self.zoomed = None;
2313                }
2314                cx.notify();
2315            }
2316        }
2317
2318        self.serialize_workspace(cx);
2319    }
2320
2321    pub fn split_pane(
2322        &mut self,
2323        pane_to_split: View<Pane>,
2324        split_direction: SplitDirection,
2325        cx: &mut ViewContext<Self>,
2326    ) -> View<Pane> {
2327        let new_pane = self.add_pane(cx);
2328        self.center
2329            .split(&pane_to_split, &new_pane, split_direction)
2330            .unwrap();
2331        cx.notify();
2332        new_pane
2333    }
2334
2335    pub fn split_and_clone(
2336        &mut self,
2337        pane: View<Pane>,
2338        direction: SplitDirection,
2339        cx: &mut ViewContext<Self>,
2340    ) -> Option<View<Pane>> {
2341        let item = pane.read(cx).active_item()?;
2342        let maybe_pane_handle = if let Some(clone) = item.clone_on_split(self.database_id(), cx) {
2343            let new_pane = self.add_pane(cx);
2344            new_pane.update(cx, |pane, cx| pane.add_item(clone, true, true, None, cx));
2345            self.center.split(&pane, &new_pane, direction).unwrap();
2346            Some(new_pane)
2347        } else {
2348            None
2349        };
2350        cx.notify();
2351        maybe_pane_handle
2352    }
2353
2354    pub fn split_pane_with_item(
2355        &mut self,
2356        pane_to_split: WeakView<Pane>,
2357        split_direction: SplitDirection,
2358        from: WeakView<Pane>,
2359        item_id_to_move: EntityId,
2360        cx: &mut ViewContext<Self>,
2361    ) {
2362        let Some(pane_to_split) = pane_to_split.upgrade() else {
2363            return;
2364        };
2365        let Some(from) = from.upgrade() else {
2366            return;
2367        };
2368
2369        let new_pane = self.add_pane(cx);
2370        self.move_item(from.clone(), new_pane.clone(), item_id_to_move, 0, cx);
2371        self.center
2372            .split(&pane_to_split, &new_pane, split_direction)
2373            .unwrap();
2374        cx.notify();
2375    }
2376
2377    pub fn split_pane_with_project_entry(
2378        &mut self,
2379        pane_to_split: WeakView<Pane>,
2380        split_direction: SplitDirection,
2381        project_entry: ProjectEntryId,
2382        cx: &mut ViewContext<Self>,
2383    ) -> Option<Task<Result<()>>> {
2384        let pane_to_split = pane_to_split.upgrade()?;
2385        let new_pane = self.add_pane(cx);
2386        self.center
2387            .split(&pane_to_split, &new_pane, split_direction)
2388            .unwrap();
2389
2390        let path = self.project.read(cx).path_for_entry(project_entry, cx)?;
2391        let task = self.open_path(path, Some(new_pane.downgrade()), true, cx);
2392        Some(cx.foreground_executor().spawn(async move {
2393            task.await?;
2394            Ok(())
2395        }))
2396    }
2397
2398    pub fn move_item(
2399        &mut self,
2400        source: View<Pane>,
2401        destination: View<Pane>,
2402        item_id_to_move: EntityId,
2403        destination_index: usize,
2404        cx: &mut ViewContext<Self>,
2405    ) {
2406        let item_to_move = source
2407            .read(cx)
2408            .items()
2409            .enumerate()
2410            .find(|(_, item_handle)| item_handle.id() == item_id_to_move);
2411
2412        if item_to_move.is_none() {
2413            log::warn!("Tried to move item handle which was not in `from` pane. Maybe tab was closed during drop");
2414            return;
2415        }
2416        let (item_ix, item_handle) = item_to_move.unwrap();
2417        let item_handle = item_handle.clone();
2418
2419        if source != destination {
2420            // Close item from previous pane
2421            source.update(cx, |source, cx| {
2422                source.remove_item(item_ix, false, cx);
2423            });
2424        }
2425
2426        // This automatically removes duplicate items in the pane
2427        destination.update(cx, |destination, cx| {
2428            destination.add_item(item_handle, true, true, Some(destination_index), cx);
2429            destination.focus(cx)
2430        });
2431    }
2432
2433    fn remove_pane(&mut self, pane: View<Pane>, cx: &mut ViewContext<Self>) {
2434        if self.center.remove(&pane).unwrap() {
2435            self.force_remove_pane(&pane, cx);
2436            self.unfollow(&pane, cx);
2437            self.last_leaders_by_pane.remove(&pane.downgrade());
2438            for removed_item in pane.read(cx).items() {
2439                self.panes_by_item.remove(&removed_item.id());
2440            }
2441
2442            cx.notify();
2443        } else {
2444            self.active_item_path_changed(cx);
2445        }
2446    }
2447
2448    pub fn panes(&self) -> &[View<Pane>] {
2449        &self.panes
2450    }
2451
2452    pub fn active_pane(&self) -> &View<Pane> {
2453        &self.active_pane
2454    }
2455
2456    fn collaborator_left(&mut self, peer_id: PeerId, cx: &mut ViewContext<Self>) {
2457        self.follower_states.retain(|_, state| {
2458            if state.leader_id == peer_id {
2459                for item in state.items_by_leader_view_id.values() {
2460                    item.set_leader_peer_id(None, cx);
2461                }
2462                false
2463            } else {
2464                true
2465            }
2466        });
2467        cx.notify();
2468    }
2469
2470    //     fn start_following(
2471    //         &mut self,
2472    //         leader_id: PeerId,
2473    //         cx: &mut ViewContext<Self>,
2474    //     ) -> Option<Task<Result<()>>> {
2475    //         let pane = self.active_pane().clone();
2476
2477    //         self.last_leaders_by_pane
2478    //             .insert(pane.downgrade(), leader_id);
2479    //         self.unfollow(&pane, cx);
2480    //         self.follower_states.insert(
2481    //             pane.clone(),
2482    //             FollowerState {
2483    //                 leader_id,
2484    //                 active_view_id: None,
2485    //                 items_by_leader_view_id: Default::default(),
2486    //             },
2487    //         );
2488    //         cx.notify();
2489
2490    //         let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
2491    //         let project_id = self.project.read(cx).remote_id();
2492    //         let request = self.app_state.client.request(proto::Follow {
2493    //             room_id,
2494    //             project_id,
2495    //             leader_id: Some(leader_id),
2496    //         });
2497
2498    //         Some(cx.spawn(|this, mut cx| async move {
2499    //             let response = request.await?;
2500    //             this.update(&mut cx, |this, _| {
2501    //                 let state = this
2502    //                     .follower_states
2503    //                     .get_mut(&pane)
2504    //                     .ok_or_else(|| anyhow!("following interrupted"))?;
2505    //                 state.active_view_id = if let Some(active_view_id) = response.active_view_id {
2506    //                     Some(ViewId::from_proto(active_view_id)?)
2507    //                 } else {
2508    //                     None
2509    //                 };
2510    //                 Ok::<_, anyhow::Error>(())
2511    //             })??;
2512    //             Self::add_views_from_leader(
2513    //                 this.clone(),
2514    //                 leader_id,
2515    //                 vec![pane],
2516    //                 response.views,
2517    //                 &mut cx,
2518    //             )
2519    //             .await?;
2520    //             this.update(&mut cx, |this, cx| this.leader_updated(leader_id, cx))?;
2521    //             Ok(())
2522    //         }))
2523    //     }
2524
2525    //     pub fn follow_next_collaborator(
2526    //         &mut self,
2527    //         _: &FollowNextCollaborator,
2528    //         cx: &mut ViewContext<Self>,
2529    //     ) -> Option<Task<Result<()>>> {
2530    //         let collaborators = self.project.read(cx).collaborators();
2531    //         let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
2532    //             let mut collaborators = collaborators.keys().copied();
2533    //             for peer_id in collaborators.by_ref() {
2534    //                 if peer_id == leader_id {
2535    //                     break;
2536    //                 }
2537    //             }
2538    //             collaborators.next()
2539    //         } else if let Some(last_leader_id) =
2540    //             self.last_leaders_by_pane.get(&self.active_pane.downgrade())
2541    //         {
2542    //             if collaborators.contains_key(last_leader_id) {
2543    //                 Some(*last_leader_id)
2544    //             } else {
2545    //                 None
2546    //             }
2547    //         } else {
2548    //             None
2549    //         };
2550
2551    //         let pane = self.active_pane.clone();
2552    //         let Some(leader_id) = next_leader_id.or_else(|| collaborators.keys().copied().next())
2553    //         else {
2554    //             return None;
2555    //         };
2556    //         if Some(leader_id) == self.unfollow(&pane, cx) {
2557    //             return None;
2558    //         }
2559    //         self.follow(leader_id, cx)
2560    //     }
2561
2562    //     pub fn follow(
2563    //         &mut self,
2564    //         leader_id: PeerId,
2565    //         cx: &mut ViewContext<Self>,
2566    //     ) -> Option<Task<Result<()>>> {
2567    //         let room = ActiveCall::global(cx).read(cx).room()?.read(cx);
2568    //         let project = self.project.read(cx);
2569
2570    //         let Some(remote_participant) = room.remote_participant_for_peer_id(leader_id) else {
2571    //             return None;
2572    //         };
2573
2574    //         let other_project_id = match remote_participant.location {
2575    //             call::ParticipantLocation::External => None,
2576    //             call::ParticipantLocation::UnsharedProject => None,
2577    //             call::ParticipantLocation::SharedProject { project_id } => {
2578    //                 if Some(project_id) == project.remote_id() {
2579    //                     None
2580    //                 } else {
2581    //                     Some(project_id)
2582    //                 }
2583    //             }
2584    //         };
2585
2586    //         // if they are active in another project, follow there.
2587    //         if let Some(project_id) = other_project_id {
2588    //             let app_state = self.app_state.clone();
2589    //             return Some(crate::join_remote_project(
2590    //                 project_id,
2591    //                 remote_participant.user.id,
2592    //                 app_state,
2593    //                 cx,
2594    //             ));
2595    //         }
2596
2597    //         // if you're already following, find the right pane and focus it.
2598    //         for (pane, state) in &self.follower_states {
2599    //             if leader_id == state.leader_id {
2600    //                 cx.focus(pane);
2601    //                 return None;
2602    //             }
2603    //         }
2604
2605    //         // Otherwise, follow.
2606    //         self.start_following(leader_id, cx)
2607    //     }
2608
2609    pub fn unfollow(&mut self, pane: &View<Pane>, cx: &mut ViewContext<Self>) -> Option<PeerId> {
2610        let state = self.follower_states.remove(pane)?;
2611        let leader_id = state.leader_id;
2612        for (_, item) in state.items_by_leader_view_id {
2613            item.set_leader_peer_id(None, cx);
2614        }
2615
2616        if self
2617            .follower_states
2618            .values()
2619            .all(|state| state.leader_id != state.leader_id)
2620        {
2621            let project_id = self.project.read(cx).remote_id();
2622            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
2623            self.app_state
2624                .client
2625                .send(proto::Unfollow {
2626                    room_id,
2627                    project_id,
2628                    leader_id: Some(leader_id),
2629                })
2630                .log_err();
2631        }
2632
2633        cx.notify();
2634        Some(leader_id)
2635    }
2636
2637    //     pub fn is_being_followed(&self, peer_id: PeerId) -> bool {
2638    //         self.follower_states
2639    //             .values()
2640    //             .any(|state| state.leader_id == peer_id)
2641    //     }
2642
2643    fn render_titlebar(&self, cx: &mut ViewContext<Self>) -> impl Component<Self> {
2644        h_stack()
2645            .id("titlebar")
2646            .justify_between()
2647            .w_full()
2648            .h(rems(1.75))
2649            .bg(cx.theme().colors().title_bar_background)
2650            .when(
2651                !matches!(cx.window_bounds(), WindowBounds::Fullscreen),
2652                |s| s.pl_20(),
2653            )
2654            .on_click(|_, event, cx| {
2655                if event.up.click_count == 2 {
2656                    cx.zoom_window();
2657                }
2658            })
2659            .child(h_stack().child(Label::new("Left side titlebar item"))) // self.titlebar_item
2660            .child(h_stack().child(Label::new("Right side titlebar item")))
2661    }
2662
2663    fn active_item_path_changed(&mut self, cx: &mut ViewContext<Self>) {
2664        let active_entry = self.active_project_path(cx);
2665        self.project
2666            .update(cx, |project, cx| project.set_active_path(active_entry, cx));
2667        self.update_window_title(cx);
2668    }
2669
2670    fn update_window_title(&mut self, cx: &mut ViewContext<Self>) {
2671        let project = self.project().read(cx);
2672        let mut title = String::new();
2673
2674        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
2675            let filename = path
2676                .path
2677                .file_name()
2678                .map(|s| s.to_string_lossy())
2679                .or_else(|| {
2680                    Some(Cow::Borrowed(
2681                        project
2682                            .worktree_for_id(path.worktree_id, cx)?
2683                            .read(cx)
2684                            .root_name(),
2685                    ))
2686                });
2687
2688            if let Some(filename) = filename {
2689                title.push_str(filename.as_ref());
2690                title.push_str(" β€” ");
2691            }
2692        }
2693
2694        for (i, name) in project.worktree_root_names(cx).enumerate() {
2695            if i > 0 {
2696                title.push_str(", ");
2697            }
2698            title.push_str(name);
2699        }
2700
2701        if title.is_empty() {
2702            title = "empty project".to_string();
2703        }
2704
2705        if project.is_remote() {
2706            title.push_str(" ↙");
2707        } else if project.is_shared() {
2708            title.push_str(" β†—");
2709        }
2710
2711        // todo!()
2712        // cx.set_window_title(&title);
2713    }
2714
2715    fn update_window_edited(&mut self, cx: &mut ViewContext<Self>) {
2716        let is_edited = !self.project.read(cx).is_read_only()
2717            && self
2718                .items(cx)
2719                .any(|item| item.has_conflict(cx) || item.is_dirty(cx));
2720        if is_edited != self.window_edited {
2721            self.window_edited = is_edited;
2722            // todo!()
2723            // cx.set_window_edited(self.window_edited)
2724        }
2725    }
2726
2727    //     fn render_disconnected_overlay(
2728    //         &self,
2729    //         cx: &mut ViewContext<Workspace>,
2730    //     ) -> Option<AnyElement<Workspace>> {
2731    //         if self.project.read(cx).is_read_only() {
2732    //             enum DisconnectedOverlay {}
2733    //             Some(
2734    //                 MouseEventHandler::new::<DisconnectedOverlay, _>(0, cx, |_, cx| {
2735    //                     let theme = &theme::current(cx);
2736    //                     Label::new(
2737    //                         "Your connection to the remote project has been lost.",
2738    //                         theme.workspace.disconnected_overlay.text.clone(),
2739    //                     )
2740    //                     .aligned()
2741    //                     .contained()
2742    //                     .with_style(theme.workspace.disconnected_overlay.container)
2743    //                 })
2744    //                 .with_cursor_style(CursorStyle::Arrow)
2745    //                 .capture_all()
2746    //                 .into_any_named("disconnected overlay"),
2747    //             )
2748    //         } else {
2749    //             None
2750    //         }
2751    //     }
2752
2753    //     fn render_notifications(
2754    //         &self,
2755    //         theme: &theme::Workspace,
2756    //         cx: &AppContext,
2757    //     ) -> Option<AnyElement<Workspace>> {
2758    //         if self.notifications.is_empty() {
2759    //             None
2760    //         } else {
2761    //             Some(
2762    //                 Flex::column()
2763    //                     .with_children(self.notifications.iter().map(|(_, _, notification)| {
2764    //                         ChildView::new(notification.as_any(), cx)
2765    //                             .contained()
2766    //                             .with_style(theme.notification)
2767    //                     }))
2768    //                     .constrained()
2769    //                     .with_width(theme.notifications.width)
2770    //                     .contained()
2771    //                     .with_style(theme.notifications.container)
2772    //                     .aligned()
2773    //                     .bottom()
2774    //                     .right()
2775    //                     .into_any(),
2776    //             )
2777    //         }
2778    //     }
2779
2780    //     // RPC handlers
2781
2782    fn handle_follow(
2783        &mut self,
2784        _follower_project_id: Option<u64>,
2785        _cx: &mut ViewContext<Self>,
2786    ) -> proto::FollowResponse {
2787        todo!()
2788
2789        //     let client = &self.app_state.client;
2790        //     let project_id = self.project.read(cx).remote_id();
2791
2792        //     let active_view_id = self.active_item(cx).and_then(|i| {
2793        //         Some(
2794        //             i.to_followable_item_handle(cx)?
2795        //                 .remote_id(client, cx)?
2796        //                 .to_proto(),
2797        //         )
2798        //     });
2799
2800        //     cx.notify();
2801
2802        //     self.last_active_view_id = active_view_id.clone();
2803        //     proto::FollowResponse {
2804        //         active_view_id,
2805        //         views: self
2806        //             .panes()
2807        //             .iter()
2808        //             .flat_map(|pane| {
2809        //                 let leader_id = self.leader_for_pane(pane);
2810        //                 pane.read(cx).items().filter_map({
2811        //                     let cx = &cx;
2812        //                     move |item| {
2813        //                         let item = item.to_followable_item_handle(cx)?;
2814        //                         if (project_id.is_none() || project_id != follower_project_id)
2815        //                             && item.is_project_item(cx)
2816        //                         {
2817        //                             return None;
2818        //                         }
2819        //                         let id = item.remote_id(client, cx)?.to_proto();
2820        //                         let variant = item.to_state_proto(cx)?;
2821        //                         Some(proto::View {
2822        //                             id: Some(id),
2823        //                             leader_id,
2824        //                             variant: Some(variant),
2825        //                         })
2826        //                     }
2827        //                 })
2828        //             })
2829        //             .collect(),
2830        //     }
2831    }
2832
2833    fn handle_update_followers(
2834        &mut self,
2835        leader_id: PeerId,
2836        message: proto::UpdateFollowers,
2837        _cx: &mut ViewContext<Self>,
2838    ) {
2839        self.leader_updates_tx
2840            .unbounded_send((leader_id, message))
2841            .ok();
2842    }
2843
2844    async fn process_leader_update(
2845        this: &WeakView<Self>,
2846        leader_id: PeerId,
2847        update: proto::UpdateFollowers,
2848        cx: &mut AsyncWindowContext,
2849    ) -> Result<()> {
2850        match update.variant.ok_or_else(|| anyhow!("invalid update"))? {
2851            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
2852                this.update(cx, |this, _| {
2853                    for (_, state) in &mut this.follower_states {
2854                        if state.leader_id == leader_id {
2855                            state.active_view_id =
2856                                if let Some(active_view_id) = update_active_view.id.clone() {
2857                                    Some(ViewId::from_proto(active_view_id)?)
2858                                } else {
2859                                    None
2860                                };
2861                        }
2862                    }
2863                    anyhow::Ok(())
2864                })??;
2865            }
2866            proto::update_followers::Variant::UpdateView(update_view) => {
2867                let variant = update_view
2868                    .variant
2869                    .ok_or_else(|| anyhow!("missing update view variant"))?;
2870                let id = update_view
2871                    .id
2872                    .ok_or_else(|| anyhow!("missing update view id"))?;
2873                let mut tasks = Vec::new();
2874                this.update(cx, |this, cx| {
2875                    let project = this.project.clone();
2876                    for (_, state) in &mut this.follower_states {
2877                        if state.leader_id == leader_id {
2878                            let view_id = ViewId::from_proto(id.clone())?;
2879                            if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
2880                                tasks.push(item.apply_update_proto(&project, variant.clone(), cx));
2881                            }
2882                        }
2883                    }
2884                    anyhow::Ok(())
2885                })??;
2886                try_join_all(tasks).await.log_err();
2887            }
2888            proto::update_followers::Variant::CreateView(view) => {
2889                let panes = this.update(cx, |this, _| {
2890                    this.follower_states
2891                        .iter()
2892                        .filter_map(|(pane, state)| (state.leader_id == leader_id).then_some(pane))
2893                        .cloned()
2894                        .collect()
2895                })?;
2896                Self::add_views_from_leader(this.clone(), leader_id, panes, vec![view], cx).await?;
2897            }
2898        }
2899        this.update(cx, |this, cx| this.leader_updated(leader_id, cx))?;
2900        Ok(())
2901    }
2902
2903    async fn add_views_from_leader(
2904        this: WeakView<Self>,
2905        leader_id: PeerId,
2906        panes: Vec<View<Pane>>,
2907        views: Vec<proto::View>,
2908        cx: &mut AsyncWindowContext,
2909    ) -> Result<()> {
2910        let this = this.upgrade().context("workspace dropped")?;
2911
2912        let item_builders = cx.update(|_, cx| {
2913            cx.default_global::<FollowableItemBuilders>()
2914                .values()
2915                .map(|b| b.0)
2916                .collect::<Vec<_>>()
2917        })?;
2918
2919        let mut item_tasks_by_pane = HashMap::default();
2920        for pane in panes {
2921            let mut item_tasks = Vec::new();
2922            let mut leader_view_ids = Vec::new();
2923            for view in &views {
2924                let Some(id) = &view.id else { continue };
2925                let id = ViewId::from_proto(id.clone())?;
2926                let mut variant = view.variant.clone();
2927                if variant.is_none() {
2928                    Err(anyhow!("missing view variant"))?;
2929                }
2930                for build_item in &item_builders {
2931                    let task = cx.update(|_, cx| {
2932                        build_item(pane.clone(), this.clone(), id, &mut variant, cx)
2933                    })?;
2934                    if let Some(task) = task {
2935                        item_tasks.push(task);
2936                        leader_view_ids.push(id);
2937                        break;
2938                    } else {
2939                        assert!(variant.is_some());
2940                    }
2941                }
2942            }
2943
2944            item_tasks_by_pane.insert(pane, (item_tasks, leader_view_ids));
2945        }
2946
2947        for (pane, (item_tasks, leader_view_ids)) in item_tasks_by_pane {
2948            let items = futures::future::try_join_all(item_tasks).await?;
2949            this.update(cx, |this, cx| {
2950                let state = this.follower_states.get_mut(&pane)?;
2951                for (id, item) in leader_view_ids.into_iter().zip(items) {
2952                    item.set_leader_peer_id(Some(leader_id), cx);
2953                    state.items_by_leader_view_id.insert(id, item);
2954                }
2955
2956                Some(())
2957            })?;
2958        }
2959        Ok(())
2960    }
2961
2962    fn update_active_view_for_followers(&mut self, cx: &mut ViewContext<Self>) {
2963        let mut is_project_item = true;
2964        let mut update = proto::UpdateActiveView::default();
2965        if self.active_pane.read(cx).has_focus(cx) {
2966            let item = self
2967                .active_item(cx)
2968                .and_then(|item| item.to_followable_item_handle(cx));
2969            if let Some(item) = item {
2970                is_project_item = item.is_project_item(cx);
2971                update = proto::UpdateActiveView {
2972                    id: item
2973                        .remote_id(&self.app_state.client, cx)
2974                        .map(|id| id.to_proto()),
2975                    leader_id: self.leader_for_pane(&self.active_pane),
2976                };
2977            }
2978        }
2979
2980        if update.id != self.last_active_view_id {
2981            self.last_active_view_id = update.id.clone();
2982            self.update_followers(
2983                is_project_item,
2984                proto::update_followers::Variant::UpdateActiveView(update),
2985                cx,
2986            );
2987        }
2988    }
2989
2990    fn update_followers(
2991        &self,
2992        project_only: bool,
2993        update: proto::update_followers::Variant,
2994        cx: &mut WindowContext,
2995    ) -> Option<()> {
2996        let project_id = if project_only {
2997            self.project.read(cx).remote_id()
2998        } else {
2999            None
3000        };
3001        self.app_state().workspace_store.update(cx, |store, cx| {
3002            store.update_followers(project_id, update, cx)
3003        })
3004    }
3005
3006    pub fn leader_for_pane(&self, pane: &View<Pane>) -> Option<PeerId> {
3007        self.follower_states.get(pane).map(|state| state.leader_id)
3008    }
3009
3010    fn leader_updated(&mut self, leader_id: PeerId, cx: &mut ViewContext<Self>) -> Option<()> {
3011        cx.notify();
3012
3013        let call = self.active_call()?;
3014        let room = call.read(cx).room()?.read(cx);
3015        let participant = room.remote_participant_for_peer_id(leader_id)?;
3016        let mut items_to_activate = Vec::new();
3017
3018        let leader_in_this_app;
3019        let leader_in_this_project;
3020        match participant.location {
3021            call2::ParticipantLocation::SharedProject { project_id } => {
3022                leader_in_this_app = true;
3023                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
3024            }
3025            call2::ParticipantLocation::UnsharedProject => {
3026                leader_in_this_app = true;
3027                leader_in_this_project = false;
3028            }
3029            call2::ParticipantLocation::External => {
3030                leader_in_this_app = false;
3031                leader_in_this_project = false;
3032            }
3033        };
3034
3035        for (pane, state) in &self.follower_states {
3036            if state.leader_id != leader_id {
3037                continue;
3038            }
3039            if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
3040                if let Some(item) = state.items_by_leader_view_id.get(&active_view_id) {
3041                    if leader_in_this_project || !item.is_project_item(cx) {
3042                        items_to_activate.push((pane.clone(), item.boxed_clone()));
3043                    }
3044                } else {
3045                    log::warn!(
3046                        "unknown view id {:?} for leader {:?}",
3047                        active_view_id,
3048                        leader_id
3049                    );
3050                }
3051                continue;
3052            }
3053            // todo!()
3054            // if let Some(shared_screen) = self.shared_screen_for_peer(leader_id, pane, cx) {
3055            //     items_to_activate.push((pane.clone(), Box::new(shared_screen)));
3056            // }
3057        }
3058
3059        for (pane, item) in items_to_activate {
3060            let pane_was_focused = pane.read(cx).has_focus(cx);
3061            if let Some(index) = pane.update(cx, |pane, _| pane.index_for_item(item.as_ref())) {
3062                pane.update(cx, |pane, cx| pane.activate_item(index, false, false, cx));
3063            } else {
3064                pane.update(cx, |pane, cx| {
3065                    pane.add_item(item.boxed_clone(), false, false, None, cx)
3066                });
3067            }
3068
3069            if pane_was_focused {
3070                pane.update(cx, |pane, cx| pane.focus_active_item(cx));
3071            }
3072        }
3073
3074        None
3075    }
3076
3077    // todo!()
3078    //     fn shared_screen_for_peer(
3079    //         &self,
3080    //         peer_id: PeerId,
3081    //         pane: &View<Pane>,
3082    //         cx: &mut ViewContext<Self>,
3083    //     ) -> Option<View<SharedScreen>> {
3084    //         let call = self.active_call()?;
3085    //         let room = call.read(cx).room()?.read(cx);
3086    //         let participant = room.remote_participant_for_peer_id(peer_id)?;
3087    //         let track = participant.video_tracks.values().next()?.clone();
3088    //         let user = participant.user.clone();
3089
3090    //         for item in pane.read(cx).items_of_type::<SharedScreen>() {
3091    //             if item.read(cx).peer_id == peer_id {
3092    //                 return Some(item);
3093    //             }
3094    //         }
3095
3096    //         Some(cx.build_view(|cx| SharedScreen::new(&track, peer_id, user.clone(), cx)))
3097    //     }
3098
3099    pub fn on_window_activation_changed(&mut self, cx: &mut ViewContext<Self>) {
3100        if cx.is_window_active() {
3101            self.update_active_view_for_followers(cx);
3102            cx.background_executor()
3103                .spawn(persistence::DB.update_timestamp(self.database_id()))
3104                .detach();
3105        } else {
3106            for pane in &self.panes {
3107                pane.update(cx, |pane, cx| {
3108                    if let Some(item) = pane.active_item() {
3109                        item.workspace_deactivated(cx);
3110                    }
3111                    if matches!(
3112                        WorkspaceSettings::get_global(cx).autosave,
3113                        AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
3114                    ) {
3115                        for item in pane.items() {
3116                            Pane::autosave_item(item.as_ref(), self.project.clone(), cx)
3117                                .detach_and_log_err(cx);
3118                        }
3119                    }
3120                });
3121            }
3122        }
3123    }
3124
3125    fn active_call(&self) -> Option<&Model<ActiveCall>> {
3126        self.active_call.as_ref().map(|(call, _)| call)
3127    }
3128
3129    fn on_active_call_event(
3130        &mut self,
3131        _: Model<ActiveCall>,
3132        event: &call2::room::Event,
3133        cx: &mut ViewContext<Self>,
3134    ) {
3135        match event {
3136            call2::room::Event::ParticipantLocationChanged { participant_id }
3137            | call2::room::Event::RemoteVideoTracksChanged { participant_id } => {
3138                self.leader_updated(*participant_id, cx);
3139            }
3140            _ => {}
3141        }
3142    }
3143
3144    pub fn database_id(&self) -> WorkspaceId {
3145        self.database_id
3146    }
3147
3148    fn location(&self, cx: &AppContext) -> Option<WorkspaceLocation> {
3149        let project = self.project().read(cx);
3150
3151        if project.is_local() {
3152            Some(
3153                project
3154                    .visible_worktrees(cx)
3155                    .map(|worktree| worktree.read(cx).abs_path())
3156                    .collect::<Vec<_>>()
3157                    .into(),
3158            )
3159        } else {
3160            None
3161        }
3162    }
3163
3164    fn remove_panes(&mut self, member: Member, cx: &mut ViewContext<Workspace>) {
3165        match member {
3166            Member::Axis(PaneAxis { members, .. }) => {
3167                for child in members.iter() {
3168                    self.remove_panes(child.clone(), cx)
3169                }
3170            }
3171            Member::Pane(pane) => {
3172                self.force_remove_pane(&pane, cx);
3173            }
3174        }
3175    }
3176
3177    fn force_remove_pane(&mut self, pane: &View<Pane>, cx: &mut ViewContext<Workspace>) {
3178        self.panes.retain(|p| p != pane);
3179        if true {
3180            todo!()
3181            // cx.focus(self.panes.last().unwrap());
3182        }
3183        if self.last_active_center_pane == Some(pane.downgrade()) {
3184            self.last_active_center_pane = None;
3185        }
3186        cx.notify();
3187    }
3188
3189    //     fn schedule_serialize(&mut self, cx: &mut ViewContext<Self>) {
3190    //         self._schedule_serialize = Some(cx.spawn(|this, cx| async move {
3191    //             cx.background().timer(Duration::from_millis(100)).await;
3192    //             this.read_with(&cx, |this, cx| this.serialize_workspace(cx))
3193    //                 .ok();
3194    //         }));
3195    //     }
3196
3197    fn serialize_workspace(&self, cx: &mut ViewContext<Self>) {
3198        fn serialize_pane_handle(pane_handle: &View<Pane>, cx: &WindowContext) -> SerializedPane {
3199            let (items, active) = {
3200                let pane = pane_handle.read(cx);
3201                let active_item_id = pane.active_item().map(|item| item.id());
3202                (
3203                    pane.items()
3204                        .filter_map(|item_handle| {
3205                            Some(SerializedItem {
3206                                kind: Arc::from(item_handle.serialized_item_kind()?),
3207                                item_id: item_handle.id().as_u64() as usize,
3208                                active: Some(item_handle.id()) == active_item_id,
3209                            })
3210                        })
3211                        .collect::<Vec<_>>(),
3212                    pane.has_focus(cx),
3213                )
3214            };
3215
3216            SerializedPane::new(items, active)
3217        }
3218
3219        fn build_serialized_pane_group(
3220            pane_group: &Member,
3221            cx: &WindowContext,
3222        ) -> SerializedPaneGroup {
3223            match pane_group {
3224                Member::Axis(PaneAxis {
3225                    axis,
3226                    members,
3227                    flexes,
3228                    bounding_boxes: _,
3229                }) => SerializedPaneGroup::Group {
3230                    axis: *axis,
3231                    children: members
3232                        .iter()
3233                        .map(|member| build_serialized_pane_group(member, cx))
3234                        .collect::<Vec<_>>(),
3235                    flexes: Some(flexes.lock().clone()),
3236                },
3237                Member::Pane(pane_handle) => {
3238                    SerializedPaneGroup::Pane(serialize_pane_handle(&pane_handle, cx))
3239                }
3240            }
3241        }
3242
3243        fn build_serialized_docks(
3244            this: &Workspace,
3245            cx: &mut ViewContext<Workspace>,
3246        ) -> DockStructure {
3247            let left_dock = this.left_dock.read(cx);
3248            let left_visible = left_dock.is_open();
3249            let left_active_panel = left_dock
3250                .visible_panel()
3251                .and_then(|panel| Some(panel.persistent_name(cx).to_string()));
3252            let left_dock_zoom = left_dock
3253                .visible_panel()
3254                .map(|panel| panel.is_zoomed(cx))
3255                .unwrap_or(false);
3256
3257            let right_dock = this.right_dock.read(cx);
3258            let right_visible = right_dock.is_open();
3259            let right_active_panel = right_dock
3260                .visible_panel()
3261                .and_then(|panel| Some(panel.persistent_name(cx).to_string()));
3262            let right_dock_zoom = right_dock
3263                .visible_panel()
3264                .map(|panel| panel.is_zoomed(cx))
3265                .unwrap_or(false);
3266
3267            let bottom_dock = this.bottom_dock.read(cx);
3268            let bottom_visible = bottom_dock.is_open();
3269            let bottom_active_panel = bottom_dock
3270                .visible_panel()
3271                .and_then(|panel| Some(panel.persistent_name(cx).to_string()));
3272            let bottom_dock_zoom = bottom_dock
3273                .visible_panel()
3274                .map(|panel| panel.is_zoomed(cx))
3275                .unwrap_or(false);
3276
3277            DockStructure {
3278                left: DockData {
3279                    visible: left_visible,
3280                    active_panel: left_active_panel,
3281                    zoom: left_dock_zoom,
3282                },
3283                right: DockData {
3284                    visible: right_visible,
3285                    active_panel: right_active_panel,
3286                    zoom: right_dock_zoom,
3287                },
3288                bottom: DockData {
3289                    visible: bottom_visible,
3290                    active_panel: bottom_active_panel,
3291                    zoom: bottom_dock_zoom,
3292                },
3293            }
3294        }
3295
3296        if let Some(location) = self.location(cx) {
3297            // Load bearing special case:
3298            //  - with_local_workspace() relies on this to not have other stuff open
3299            //    when you open your log
3300            if !location.paths().is_empty() {
3301                let center_group = build_serialized_pane_group(&self.center.root, cx);
3302                let docks = build_serialized_docks(self, cx);
3303
3304                let serialized_workspace = SerializedWorkspace {
3305                    id: self.database_id,
3306                    location,
3307                    center_group,
3308                    bounds: Default::default(),
3309                    display: Default::default(),
3310                    docks,
3311                };
3312
3313                cx.spawn(|_, _| persistence::DB.save_workspace(serialized_workspace))
3314                    .detach();
3315            }
3316        }
3317    }
3318
3319    pub(crate) fn load_workspace(
3320        serialized_workspace: SerializedWorkspace,
3321        paths_to_open: Vec<Option<ProjectPath>>,
3322        cx: &mut ViewContext<Workspace>,
3323    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
3324        cx.spawn(|workspace, mut cx| async move {
3325            let (project, old_center_pane) = workspace.update(&mut cx, |workspace, _| {
3326                (
3327                    workspace.project().clone(),
3328                    workspace.last_active_center_pane.clone(),
3329                )
3330            })?;
3331
3332            let mut center_group = None;
3333            let mut center_items = None;
3334
3335            // Traverse the splits tree and add to things
3336            if let Some((group, active_pane, items)) = serialized_workspace
3337                .center_group
3338                .deserialize(
3339                    &project,
3340                    serialized_workspace.id,
3341                    workspace.clone(),
3342                    &mut cx,
3343                )
3344                .await
3345            {
3346                center_items = Some(items);
3347                center_group = Some((group, active_pane))
3348            }
3349
3350            let mut items_by_project_path = cx.update(|_, cx| {
3351                center_items
3352                    .unwrap_or_default()
3353                    .into_iter()
3354                    .filter_map(|item| {
3355                        let item = item?;
3356                        let project_path = item.project_path(cx)?;
3357                        Some((project_path, item))
3358                    })
3359                    .collect::<HashMap<_, _>>()
3360            })?;
3361
3362            let opened_items = paths_to_open
3363                .into_iter()
3364                .map(|path_to_open| {
3365                    path_to_open
3366                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
3367                })
3368                .collect::<Vec<_>>();
3369
3370            // Remove old panes from workspace panes list
3371            workspace.update(&mut cx, |workspace, cx| {
3372                if let Some((center_group, active_pane)) = center_group {
3373                    workspace.remove_panes(workspace.center.root.clone(), cx);
3374
3375                    // Swap workspace center group
3376                    workspace.center = PaneGroup::with_root(center_group);
3377
3378                    // Change the focus to the workspace first so that we retrigger focus in on the pane.
3379                    // todo!()
3380                    // cx.focus_self();
3381                    // if let Some(active_pane) = active_pane {
3382                    //     cx.focus(&active_pane);
3383                    // } else {
3384                    //     cx.focus(workspace.panes.last().unwrap());
3385                    // }
3386                } else {
3387                    // todo!()
3388                    // let old_center_handle = old_center_pane.and_then(|weak| weak.upgrade());
3389                    // if let Some(old_center_handle) = old_center_handle {
3390                    //     cx.focus(&old_center_handle)
3391                    // } else {
3392                    //     cx.focus_self()
3393                    // }
3394                }
3395
3396                let docks = serialized_workspace.docks;
3397                workspace.left_dock.update(cx, |dock, cx| {
3398                    dock.set_open(docks.left.visible, cx);
3399                    if let Some(active_panel) = docks.left.active_panel {
3400                        if let Some(ix) = dock.panel_index_for_ui_name(&active_panel, cx) {
3401                            dock.activate_panel(ix, cx);
3402                        }
3403                    }
3404                    dock.active_panel()
3405                        .map(|panel| panel.set_zoomed(docks.left.zoom, cx));
3406                    if docks.left.visible && docks.left.zoom {
3407                        // todo!()
3408                        // cx.focus_self()
3409                    }
3410                });
3411                // TODO: I think the bug is that setting zoom or active undoes the bottom zoom or something
3412                workspace.right_dock.update(cx, |dock, cx| {
3413                    dock.set_open(docks.right.visible, cx);
3414                    if let Some(active_panel) = docks.right.active_panel {
3415                        if let Some(ix) = dock.panel_index_for_ui_name(&active_panel, cx) {
3416                            dock.activate_panel(ix, cx);
3417                        }
3418                    }
3419                    dock.active_panel()
3420                        .map(|panel| panel.set_zoomed(docks.right.zoom, cx));
3421
3422                    if docks.right.visible && docks.right.zoom {
3423                        // todo!()
3424                        // cx.focus_self()
3425                    }
3426                });
3427                workspace.bottom_dock.update(cx, |dock, cx| {
3428                    dock.set_open(docks.bottom.visible, cx);
3429                    if let Some(active_panel) = docks.bottom.active_panel {
3430                        if let Some(ix) = dock.panel_index_for_ui_name(&active_panel, cx) {
3431                            dock.activate_panel(ix, cx);
3432                        }
3433                    }
3434
3435                    dock.active_panel()
3436                        .map(|panel| panel.set_zoomed(docks.bottom.zoom, cx));
3437
3438                    if docks.bottom.visible && docks.bottom.zoom {
3439                        // todo!()
3440                        // cx.focus_self()
3441                    }
3442                });
3443
3444                cx.notify();
3445            })?;
3446
3447            // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
3448            workspace.update(&mut cx, |workspace, cx| workspace.serialize_workspace(cx))?;
3449
3450            Ok(opened_items)
3451        })
3452    }
3453
3454    #[cfg(any(test, feature = "test-support"))]
3455    pub fn test_new(project: Model<Project>, cx: &mut ViewContext<Self>) -> Self {
3456        use gpui::Context;
3457        use node_runtime::FakeNodeRuntime;
3458
3459        let client = project.read(cx).client();
3460        let user_store = project.read(cx).user_store();
3461
3462        let workspace_store = cx.build_model(|cx| WorkspaceStore::new(client.clone(), cx));
3463        let app_state = Arc::new(AppState {
3464            languages: project.read(cx).languages().clone(),
3465            workspace_store,
3466            client,
3467            user_store,
3468            fs: project.read(cx).fs().clone(),
3469            build_window_options: |_, _, _| Default::default(),
3470            initialize_workspace: |_, _, _, _| Task::ready(Ok(())),
3471            node_runtime: FakeNodeRuntime::new(),
3472        });
3473        Self::new(0, project, app_state, cx)
3474    }
3475
3476    //     fn render_dock(&self, position: DockPosition, cx: &WindowContext) -> Option<AnyElement<Self>> {
3477    //         let dock = match position {
3478    //             DockPosition::Left => &self.left_dock,
3479    //             DockPosition::Right => &self.right_dock,
3480    //             DockPosition::Bottom => &self.bottom_dock,
3481    //         };
3482    //         let active_panel = dock.read(cx).visible_panel()?;
3483    //         let element = if Some(active_panel.id()) == self.zoomed.as_ref().map(|zoomed| zoomed.id()) {
3484    //             dock.read(cx).render_placeholder(cx)
3485    //         } else {
3486    //             ChildView::new(dock, cx).into_any()
3487    //         };
3488
3489    //         Some(
3490    //             element
3491    //                 .constrained()
3492    //                 .dynamically(move |constraint, _, cx| match position {
3493    //                     DockPosition::Left | DockPosition::Right => SizeConstraint::new(
3494    //                         Vector2F::new(20., constraint.min.y()),
3495    //                         Vector2F::new(cx.window_size().x() * 0.8, constraint.max.y()),
3496    //                     ),
3497    //                     DockPosition::Bottom => SizeConstraint::new(
3498    //                         Vector2F::new(constraint.min.x(), 20.),
3499    //                         Vector2F::new(constraint.max.x(), cx.window_size().y() * 0.8),
3500    //                     ),
3501    //                 })
3502    //                 .into_any(),
3503    //         )
3504    //     }
3505    // }
3506    pub fn register_action<A: Action>(
3507        &mut self,
3508        callback: impl Fn(&mut Self, &A, &mut ViewContext<Self>) + 'static,
3509    ) {
3510        let callback = Arc::new(callback);
3511
3512        self.workspace_actions.push(Box::new(move |div| {
3513            let callback = callback.clone();
3514            div.on_action(move |workspace, event, cx| (callback.clone())(workspace, event, cx))
3515        }));
3516    }
3517
3518    fn add_workspace_actions_listeners(
3519        &self,
3520        mut div: Div<Workspace, StatefulInteractivity<Workspace>>,
3521    ) -> Div<Workspace, StatefulInteractivity<Workspace>> {
3522        for action in self.workspace_actions.iter() {
3523            div = (action)(div)
3524        }
3525        div
3526    }
3527
3528    pub fn toggle_modal<V: Modal, B>(&mut self, cx: &mut ViewContext<Self>, build: B)
3529    where
3530        B: FnOnce(&mut ViewContext<V>) -> V,
3531    {
3532        self.modal_layer
3533            .update(cx, |modal_layer, cx| modal_layer.toggle_modal(cx, build))
3534    }
3535}
3536
3537fn window_bounds_env_override(cx: &AsyncAppContext) -> Option<WindowBounds> {
3538    let display_origin = cx
3539        .update(|cx| Some(cx.displays().first()?.bounds().origin))
3540        .ok()??;
3541    ZED_WINDOW_POSITION
3542        .zip(*ZED_WINDOW_SIZE)
3543        .map(|(position, size)| {
3544            WindowBounds::Fixed(Bounds {
3545                origin: display_origin + position,
3546                size,
3547            })
3548        })
3549}
3550
3551fn open_items(
3552    serialized_workspace: Option<SerializedWorkspace>,
3553    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
3554    app_state: Arc<AppState>,
3555    cx: &mut ViewContext<Workspace>,
3556) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> {
3557    let restored_items = serialized_workspace.map(|serialized_workspace| {
3558        Workspace::load_workspace(
3559            serialized_workspace,
3560            project_paths_to_open
3561                .iter()
3562                .map(|(_, project_path)| project_path)
3563                .cloned()
3564                .collect(),
3565            cx,
3566        )
3567    });
3568
3569    cx.spawn(|workspace, mut cx| async move {
3570        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
3571
3572        if let Some(restored_items) = restored_items {
3573            let restored_items = restored_items.await?;
3574
3575            let restored_project_paths = restored_items
3576                .iter()
3577                .filter_map(|item| {
3578                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
3579                        .ok()
3580                        .flatten()
3581                })
3582                .collect::<HashSet<_>>();
3583
3584            for restored_item in restored_items {
3585                opened_items.push(restored_item.map(Ok));
3586            }
3587
3588            project_paths_to_open
3589                .iter_mut()
3590                .for_each(|(_, project_path)| {
3591                    if let Some(project_path_to_open) = project_path {
3592                        if restored_project_paths.contains(project_path_to_open) {
3593                            *project_path = None;
3594                        }
3595                    }
3596                });
3597        } else {
3598            for _ in 0..project_paths_to_open.len() {
3599                opened_items.push(None);
3600            }
3601        }
3602        assert!(opened_items.len() == project_paths_to_open.len());
3603
3604        let tasks =
3605            project_paths_to_open
3606                .into_iter()
3607                .enumerate()
3608                .map(|(i, (abs_path, project_path))| {
3609                    let workspace = workspace.clone();
3610                    cx.spawn(|mut cx| {
3611                        let fs = app_state.fs.clone();
3612                        async move {
3613                            let file_project_path = project_path?;
3614                            if fs.is_file(&abs_path).await {
3615                                Some((
3616                                    i,
3617                                    workspace
3618                                        .update(&mut cx, |workspace, cx| {
3619                                            workspace.open_path(file_project_path, None, true, cx)
3620                                        })
3621                                        .log_err()?
3622                                        .await,
3623                                ))
3624                            } else {
3625                                None
3626                            }
3627                        }
3628                    })
3629                });
3630
3631        let tasks = tasks.collect::<Vec<_>>();
3632
3633        let tasks = futures::future::join_all(tasks.into_iter());
3634        for maybe_opened_path in tasks.await.into_iter() {
3635            if let Some((i, path_open_result)) = maybe_opened_path {
3636                opened_items[i] = Some(path_open_result);
3637            }
3638        }
3639
3640        Ok(opened_items)
3641    })
3642}
3643
3644// todo!()
3645// fn notify_of_new_dock(workspace: &WeakView<Workspace>, cx: &mut AsyncAppContext) {
3646//     const NEW_PANEL_BLOG_POST: &str = "https://zed.dev/blog/new-panel-system";
3647//     const NEW_DOCK_HINT_KEY: &str = "show_new_dock_key";
3648//     const MESSAGE_ID: usize = 2;
3649
3650//     if workspace
3651//         .read_with(cx, |workspace, cx| {
3652//             workspace.has_shown_notification_once::<MessageNotification>(MESSAGE_ID, cx)
3653//         })
3654//         .unwrap_or(false)
3655//     {
3656//         return;
3657//     }
3658
3659//     if db::kvp::KEY_VALUE_STORE
3660//         .read_kvp(NEW_DOCK_HINT_KEY)
3661//         .ok()
3662//         .flatten()
3663//         .is_some()
3664//     {
3665//         if !workspace
3666//             .read_with(cx, |workspace, cx| {
3667//                 workspace.has_shown_notification_once::<MessageNotification>(MESSAGE_ID, cx)
3668//             })
3669//             .unwrap_or(false)
3670//         {
3671//             cx.update(|cx| {
3672//                 cx.update_global::<NotificationTracker, _, _>(|tracker, _| {
3673//                     let entry = tracker
3674//                         .entry(TypeId::of::<MessageNotification>())
3675//                         .or_default();
3676//                     if !entry.contains(&MESSAGE_ID) {
3677//                         entry.push(MESSAGE_ID);
3678//                     }
3679//                 });
3680//             });
3681//         }
3682
3683//         return;
3684//     }
3685
3686//     cx.spawn(|_| async move {
3687//         db::kvp::KEY_VALUE_STORE
3688//             .write_kvp(NEW_DOCK_HINT_KEY.to_string(), "seen".to_string())
3689//             .await
3690//             .ok();
3691//     })
3692//     .detach();
3693
3694//     workspace
3695//         .update(cx, |workspace, cx| {
3696//             workspace.show_notification_once(2, cx, |cx| {
3697//                 cx.build_view(|_| {
3698//                     MessageNotification::new_element(|text, _| {
3699//                         Text::new(
3700//                             "Looking for the dock? Try ctrl-`!\nshift-escape now zooms your pane.",
3701//                             text,
3702//                         )
3703//                         .with_custom_runs(vec![26..32, 34..46], |_, bounds, cx| {
3704//                             let code_span_background_color = settings::get::<ThemeSettings>(cx)
3705//                                 .theme
3706//                                 .editor
3707//                                 .document_highlight_read_background;
3708
3709//                             cx.scene().push_quad(gpui::Quad {
3710//                                 bounds,
3711//                                 background: Some(code_span_background_color),
3712//                                 border: Default::default(),
3713//                                 corner_radii: (2.0).into(),
3714//                             })
3715//                         })
3716//                         .into_any()
3717//                     })
3718//                     .with_click_message("Read more about the new panel system")
3719//                     .on_click(|cx| cx.platform().open_url(NEW_PANEL_BLOG_POST))
3720//                 })
3721//             })
3722//         })
3723//         .ok();
3724
3725fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncAppContext) {
3726    const REPORT_ISSUE_URL: &str ="https://github.com/zed-industries/community/issues/new?assignees=&labels=defect%2Ctriage&template=2_bug_report.yml";
3727
3728    workspace
3729        .update(cx, |workspace, cx| {
3730            if (*db2::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
3731                workspace.show_notification_once(0, cx, |cx| {
3732                    cx.build_view(|_| {
3733                        MessageNotification::new("Failed to load the database file.")
3734                            .with_click_message("Click to let us know about this error")
3735                            .on_click(|cx| cx.open_url(REPORT_ISSUE_URL))
3736                    })
3737                });
3738            }
3739        })
3740        .log_err();
3741}
3742
3743impl EventEmitter<Event> for Workspace {}
3744
3745impl Render for Workspace {
3746    type Element = Div<Self>;
3747
3748    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
3749        let mut context = DispatchContext::default();
3750        context.insert("Workspace");
3751        cx.with_key_dispatch_context(context, |cx| {
3752            div()
3753                .relative()
3754                .size_full()
3755                .flex()
3756                .flex_col()
3757                .font("Zed Sans")
3758                .gap_0()
3759                .justify_start()
3760                .items_start()
3761                .text_color(cx.theme().colors().text)
3762                .bg(cx.theme().colors().background)
3763                .child(self.render_titlebar(cx))
3764                .child(
3765                    // todo! should this be a component a view?
3766                    self.add_workspace_actions_listeners(div().id("workspace"))
3767                        .relative()
3768                        .flex_1()
3769                        .w_full()
3770                        .flex()
3771                        .overflow_hidden()
3772                        .border_t()
3773                        .border_b()
3774                        .border_color(cx.theme().colors().border)
3775                        .child(self.modal_layer.clone())
3776                        // .children(
3777                        //     Some(
3778                        //         Panel::new("project-panel-outer", cx)
3779                        //             .side(PanelSide::Left)
3780                        //             .child(ProjectPanel::new("project-panel-inner")),
3781                        //     )
3782                        //     .filter(|_| self.is_project_panel_open()),
3783                        // )
3784                        // .children(
3785                        //     Some(
3786                        //         Panel::new("collab-panel-outer", cx)
3787                        //             .child(CollabPanel::new("collab-panel-inner"))
3788                        //             .side(PanelSide::Left),
3789                        //     )
3790                        //     .filter(|_| self.is_collab_panel_open()),
3791                        // )
3792                        // .child(NotificationToast::new(
3793                        //     "maxbrunsfeld has requested to add you as a contact.".into(),
3794                        // ))
3795                        .child(
3796                            div().flex().flex_col().flex_1().h_full().child(
3797                                div().flex().flex_1().child(self.center.render(
3798                                    &self.project,
3799                                    &self.follower_states,
3800                                    self.active_call(),
3801                                    &self.active_pane,
3802                                    self.zoomed.as_ref(),
3803                                    &self.app_state,
3804                                    cx,
3805                                )),
3806                            ), // .children(
3807                               //     Some(
3808                               //         Panel::new("terminal-panel", cx)
3809                               //             .child(Terminal::new())
3810                               //             .allowed_sides(PanelAllowedSides::BottomOnly)
3811                               //             .side(PanelSide::Bottom),
3812                               //     )
3813                               //     .filter(|_| self.is_terminal_open()),
3814                               // ),
3815                        ), // .children(
3816                           //     Some(
3817                           //         Panel::new("chat-panel-outer", cx)
3818                           //             .side(PanelSide::Right)
3819                           //             .child(ChatPanel::new("chat-panel-inner").messages(vec![
3820                           //                 ChatMessage::new(
3821                           //                     "osiewicz".to_string(),
3822                           //                     "is this thing on?".to_string(),
3823                           //                     DateTime::parse_from_rfc3339("2023-09-27T15:40:52.707Z")
3824                           //                         .unwrap()
3825                           //                         .naive_local(),
3826                           //                 ),
3827                           //                 ChatMessage::new(
3828                           //                     "maxdeviant".to_string(),
3829                           //                     "Reading you loud and clear!".to_string(),
3830                           //                     DateTime::parse_from_rfc3339("2023-09-28T15:40:52.707Z")
3831                           //                         .unwrap()
3832                           //                         .naive_local(),
3833                           //                 ),
3834                           //             ])),
3835                           //     )
3836                           //     .filter(|_| self.is_chat_panel_open()),
3837                           // )
3838                           // .children(
3839                           //     Some(
3840                           //         Panel::new("notifications-panel-outer", cx)
3841                           //             .side(PanelSide::Right)
3842                           //             .child(NotificationsPanel::new("notifications-panel-inner")),
3843                           //     )
3844                           //     .filter(|_| self.is_notifications_panel_open()),
3845                           // )
3846                           // .children(
3847                           //     Some(
3848                           //         Panel::new("assistant-panel-outer", cx)
3849                           //             .child(AssistantPanel::new("assistant-panel-inner")),
3850                           //     )
3851                           //     .filter(|_| self.is_assistant_panel_open()),
3852                           // ),
3853                )
3854                .child(self.status_bar.clone())
3855                // .when(self.debug.show_toast, |this| {
3856                //     this.child(Toast::new(ToastOrigin::Bottom).child(Label::new("A toast")))
3857                // })
3858                // .children(
3859                //     Some(
3860                //         div()
3861                //             .absolute()
3862                //             .top(px(50.))
3863                //             .left(px(640.))
3864                //             .z_index(8)
3865                //             .child(LanguageSelector::new("language-selector")),
3866                //     )
3867                //     .filter(|_| self.is_language_selector_open()),
3868                // )
3869                .z_index(8)
3870                // Debug
3871                .child(
3872                    div()
3873                        .flex()
3874                        .flex_col()
3875                        .z_index(9)
3876                        .absolute()
3877                        .top_20()
3878                        .left_1_4()
3879                        .w_40()
3880                        .gap_2(), // .when(self.show_debug, |this| {
3881                                  //     this.child(Button::<Workspace>::new("Toggle User Settings").on_click(
3882                                  //         Arc::new(|workspace, cx| workspace.debug_toggle_user_settings(cx)),
3883                                  //     ))
3884                                  //     .child(
3885                                  //         Button::<Workspace>::new("Toggle Toasts").on_click(Arc::new(
3886                                  //             |workspace, cx| workspace.debug_toggle_toast(cx),
3887                                  //         )),
3888                                  //     )
3889                                  //     .child(
3890                                  //         Button::<Workspace>::new("Toggle Livestream").on_click(Arc::new(
3891                                  //             |workspace, cx| workspace.debug_toggle_livestream(cx),
3892                                  //         )),
3893                                  //     )
3894                                  // })
3895                                  // .child(
3896                                  //     Button::<Workspace>::new("Toggle Debug")
3897                                  //         .on_click(Arc::new(|workspace, cx| workspace.toggle_debug(cx))),
3898                                  // ),
3899                )
3900        })
3901    }
3902}
3903// todo!()
3904// impl Entity for Workspace {
3905//     type Event = Event;
3906
3907//     fn release(&mut self, cx: &mut AppContext) {
3908//         self.app_state.workspace_store.update(cx, |store, _| {
3909//             store.workspaces.remove(&self.weak_self);
3910//         })
3911//     }
3912// }
3913
3914// impl View for Workspace {
3915//     fn ui_name() -> &'static str {
3916//         "Workspace"
3917//     }
3918
3919//     fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
3920//         let theme = theme::current(cx).clone();
3921//         Stack::new()
3922//             .with_child(
3923//                 Flex::column()
3924//                     .with_child(self.render_titlebar(&theme, cx))
3925//                     .with_child(
3926//                         Stack::new()
3927//                             .with_child({
3928//                                 let project = self.project.clone();
3929//                                 Flex::row()
3930//                                     .with_children(self.render_dock(DockPosition::Left, cx))
3931//                                     .with_child(
3932//                                         Flex::column()
3933//                                             .with_child(
3934//                                                 FlexItem::new(
3935//                                                     self.center.render(
3936//                                                         &project,
3937//                                                         &theme,
3938//                                                         &self.follower_states,
3939//                                                         self.active_call(),
3940//                                                         self.active_pane(),
3941//                                                         self.zoomed
3942//                                                             .as_ref()
3943//                                                             .and_then(|zoomed| zoomed.upgrade(cx))
3944//                                                             .as_ref(),
3945//                                                         &self.app_state,
3946//                                                         cx,
3947//                                                     ),
3948//                                                 )
3949//                                                 .flex(1., true),
3950//                                             )
3951//                                             .with_children(
3952//                                                 self.render_dock(DockPosition::Bottom, cx),
3953//                                             )
3954//                                             .flex(1., true),
3955//                                     )
3956//                                     .with_children(self.render_dock(DockPosition::Right, cx))
3957//                             })
3958//                             .with_child(Overlay::new(
3959//                                 Stack::new()
3960//                                     .with_children(self.zoomed.as_ref().and_then(|zoomed| {
3961//                                         enum ZoomBackground {}
3962//                                         let zoomed = zoomed.upgrade(cx)?;
3963
3964//                                         let mut foreground_style =
3965//                                             theme.workspace.zoomed_pane_foreground;
3966//                                         if let Some(zoomed_dock_position) = self.zoomed_position {
3967//                                             foreground_style =
3968//                                                 theme.workspace.zoomed_panel_foreground;
3969//                                             let margin = foreground_style.margin.top;
3970//                                             let border = foreground_style.border.top;
3971
3972//                                             // Only include a margin and border on the opposite side.
3973//                                             foreground_style.margin.top = 0.;
3974//                                             foreground_style.margin.left = 0.;
3975//                                             foreground_style.margin.bottom = 0.;
3976//                                             foreground_style.margin.right = 0.;
3977//                                             foreground_style.border.top = false;
3978//                                             foreground_style.border.left = false;
3979//                                             foreground_style.border.bottom = false;
3980//                                             foreground_style.border.right = false;
3981//                                             match zoomed_dock_position {
3982//                                                 DockPosition::Left => {
3983//                                                     foreground_style.margin.right = margin;
3984//                                                     foreground_style.border.right = border;
3985//                                                 }
3986//                                                 DockPosition::Right => {
3987//                                                     foreground_style.margin.left = margin;
3988//                                                     foreground_style.border.left = border;
3989//                                                 }
3990//                                                 DockPosition::Bottom => {
3991//                                                     foreground_style.margin.top = margin;
3992//                                                     foreground_style.border.top = border;
3993//                                                 }
3994//                                             }
3995//                                         }
3996
3997//                                         Some(
3998//                                             ChildView::new(&zoomed, cx)
3999//                                                 .contained()
4000//                                                 .with_style(foreground_style)
4001//                                                 .aligned()
4002//                                                 .contained()
4003//                                                 .with_style(theme.workspace.zoomed_background)
4004//                                                 .mouse::<ZoomBackground>(0)
4005//                                                 .capture_all()
4006//                                                 .on_down(
4007//                                                     MouseButton::Left,
4008//                                                     |_, this: &mut Self, cx| {
4009//                                                         this.zoom_out(cx);
4010//                                                     },
4011//                                                 ),
4012//                                         )
4013//                                     }))
4014//                                     .with_children(self.modal.as_ref().map(|modal| {
4015//                                         // Prevent clicks within the modal from falling
4016//                                         // through to the rest of the workspace.
4017//                                         enum ModalBackground {}
4018//                                         MouseEventHandler::new::<ModalBackground, _>(
4019//                                             0,
4020//                                             cx,
4021//                                             |_, cx| ChildView::new(modal.view.as_any(), cx),
4022//                                         )
4023//                                         .on_click(MouseButton::Left, |_, _, _| {})
4024//                                         .contained()
4025//                                         .with_style(theme.workspace.modal)
4026//                                         .aligned()
4027//                                         .top()
4028//                                     }))
4029//                                     .with_children(self.render_notifications(&theme.workspace, cx)),
4030//                             ))
4031//                             .provide_resize_bounds::<WorkspaceBounds>()
4032//                             .flex(1.0, true),
4033//                     )
4034//                     .with_child(ChildView::new(&self.status_bar, cx))
4035//                     .contained()
4036//                     .with_background_color(theme.workspace.background),
4037//             )
4038//             .with_children(DragAndDrop::render(cx))
4039//             .with_children(self.render_disconnected_overlay(cx))
4040//             .into_any_named("workspace")
4041//     }
4042
4043//     fn focus_in(&mut self, _: AnyViewHandle, cx: &mut ViewContext<Self>) {
4044//         if cx.is_self_focused() {
4045//             cx.focus(&self.active_pane);
4046//         }
4047//     }
4048
4049//     fn modifiers_changed(&mut self, e: &ModifiersChangedEvent, cx: &mut ViewContext<Self>) -> bool {
4050//         DragAndDrop::<Workspace>::update_modifiers(e.modifiers, cx)
4051//     }
4052// }
4053
4054impl WorkspaceStore {
4055    pub fn new(client: Arc<Client>, _cx: &mut ModelContext<Self>) -> Self {
4056        Self {
4057            workspaces: Default::default(),
4058            followers: Default::default(),
4059            _subscriptions: vec![],
4060            //     client.add_request_handler(cx.weak_model(), Self::handle_follow),
4061            //     client.add_message_handler(cx.weak_model(), Self::handle_unfollow),
4062            //     client.add_message_handler(cx.weak_model(), Self::handle_update_followers),
4063            // ],
4064            client,
4065        }
4066    }
4067
4068    pub fn update_followers(
4069        &self,
4070        project_id: Option<u64>,
4071        update: proto::update_followers::Variant,
4072        cx: &AppContext,
4073    ) -> Option<()> {
4074        if !cx.has_global::<Model<ActiveCall>>() {
4075            return None;
4076        }
4077
4078        let room_id = ActiveCall::global(cx).read(cx).room()?.read(cx).id();
4079        let follower_ids: Vec<_> = self
4080            .followers
4081            .iter()
4082            .filter_map(|follower| {
4083                if follower.project_id == project_id || project_id.is_none() {
4084                    Some(follower.peer_id.into())
4085                } else {
4086                    None
4087                }
4088            })
4089            .collect();
4090        if follower_ids.is_empty() {
4091            return None;
4092        }
4093        self.client
4094            .send(proto::UpdateFollowers {
4095                room_id,
4096                project_id,
4097                follower_ids,
4098                variant: Some(update),
4099            })
4100            .log_err()
4101    }
4102
4103    pub async fn handle_follow(
4104        this: Model<Self>,
4105        envelope: TypedEnvelope<proto::Follow>,
4106        _: Arc<Client>,
4107        mut cx: AsyncAppContext,
4108    ) -> Result<proto::FollowResponse> {
4109        this.update(&mut cx, |this, cx| {
4110            let follower = Follower {
4111                project_id: envelope.payload.project_id,
4112                peer_id: envelope.original_sender_id()?,
4113            };
4114            let active_project = ActiveCall::global(cx).read(cx).location().cloned();
4115
4116            let mut response = proto::FollowResponse::default();
4117            for workspace in &this.workspaces {
4118                workspace
4119                    .update(cx, |workspace, cx| {
4120                        let handler_response = workspace.handle_follow(follower.project_id, cx);
4121                        if response.views.is_empty() {
4122                            response.views = handler_response.views;
4123                        } else {
4124                            response.views.extend_from_slice(&handler_response.views);
4125                        }
4126
4127                        if let Some(active_view_id) = handler_response.active_view_id.clone() {
4128                            if response.active_view_id.is_none()
4129                                || Some(workspace.project.downgrade()) == active_project
4130                            {
4131                                response.active_view_id = Some(active_view_id);
4132                            }
4133                        }
4134                    })
4135                    .ok();
4136            }
4137
4138            if let Err(ix) = this.followers.binary_search(&follower) {
4139                this.followers.insert(ix, follower);
4140            }
4141
4142            Ok(response)
4143        })?
4144    }
4145
4146    async fn handle_unfollow(
4147        model: Model<Self>,
4148        envelope: TypedEnvelope<proto::Unfollow>,
4149        _: Arc<Client>,
4150        mut cx: AsyncAppContext,
4151    ) -> Result<()> {
4152        model.update(&mut cx, |this, _| {
4153            let follower = Follower {
4154                project_id: envelope.payload.project_id,
4155                peer_id: envelope.original_sender_id()?,
4156            };
4157            if let Ok(ix) = this.followers.binary_search(&follower) {
4158                this.followers.remove(ix);
4159            }
4160            Ok(())
4161        })?
4162    }
4163
4164    async fn handle_update_followers(
4165        this: Model<Self>,
4166        envelope: TypedEnvelope<proto::UpdateFollowers>,
4167        _: Arc<Client>,
4168        mut cx: AsyncWindowContext,
4169    ) -> Result<()> {
4170        let leader_id = envelope.original_sender_id()?;
4171        let update = envelope.payload;
4172
4173        this.update(&mut cx, |this, cx| {
4174            for workspace in &this.workspaces {
4175                workspace.update(cx, |workspace, cx| {
4176                    let project_id = workspace.project.read(cx).remote_id();
4177                    if update.project_id != project_id && update.project_id.is_some() {
4178                        return;
4179                    }
4180                    workspace.handle_update_followers(leader_id, update.clone(), cx);
4181                })?;
4182            }
4183            Ok(())
4184        })?
4185    }
4186}
4187
4188impl ViewId {
4189    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
4190        Ok(Self {
4191            creator: message
4192                .creator
4193                .ok_or_else(|| anyhow!("creator is missing"))?,
4194            id: message.id,
4195        })
4196    }
4197
4198    pub(crate) fn to_proto(&self) -> proto::ViewId {
4199        proto::ViewId {
4200            creator: Some(self.creator),
4201            id: self.id,
4202        }
4203    }
4204}
4205
4206pub trait WorkspaceHandle {
4207    fn file_project_paths(&self, cx: &AppContext) -> Vec<ProjectPath>;
4208}
4209
4210impl WorkspaceHandle for View<Workspace> {
4211    fn file_project_paths(&self, cx: &AppContext) -> Vec<ProjectPath> {
4212        self.read(cx)
4213            .worktrees(cx)
4214            .flat_map(|worktree| {
4215                let worktree_id = worktree.read(cx).id();
4216                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
4217                    worktree_id,
4218                    path: f.path.clone(),
4219                })
4220            })
4221            .collect::<Vec<_>>()
4222    }
4223}
4224
4225// impl std::fmt::Debug for OpenPaths {
4226//     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
4227//         f.debug_struct("OpenPaths")
4228//             .field("paths", &self.paths)
4229//             .finish()
4230//     }
4231// }
4232
4233pub struct WorkspaceCreated(pub WeakView<Workspace>);
4234
4235pub fn activate_workspace_for_project(
4236    cx: &mut AppContext,
4237    predicate: impl Fn(&Project, &AppContext) -> bool + Send + 'static,
4238) -> Option<WindowHandle<Workspace>> {
4239    for window in cx.windows() {
4240        let Some(workspace) = window.downcast::<Workspace>() else {
4241            continue;
4242        };
4243
4244        let predicate = workspace
4245            .update(cx, |workspace, cx| {
4246                let project = workspace.project.read(cx);
4247                if predicate(project, cx) {
4248                    cx.activate_window();
4249                    true
4250                } else {
4251                    false
4252                }
4253            })
4254            .log_err()
4255            .unwrap_or(false);
4256
4257        if predicate {
4258            return Some(workspace);
4259        }
4260    }
4261
4262    None
4263}
4264
4265pub async fn last_opened_workspace_paths() -> Option<WorkspaceLocation> {
4266    DB.last_workspace().await.log_err().flatten()
4267}
4268
4269// async fn join_channel_internal(
4270//     channel_id: u64,
4271//     app_state: &Arc<AppState>,
4272//     requesting_window: Option<WindowHandle<Workspace>>,
4273//     active_call: &ModelHandle<ActiveCall>,
4274//     cx: &mut AsyncAppContext,
4275// ) -> Result<bool> {
4276//     let (should_prompt, open_room) = active_call.read_with(cx, |active_call, cx| {
4277//         let Some(room) = active_call.room().map(|room| room.read(cx)) else {
4278//             return (false, None);
4279//         };
4280
4281//         let already_in_channel = room.channel_id() == Some(channel_id);
4282//         let should_prompt = room.is_sharing_project()
4283//             && room.remote_participants().len() > 0
4284//             && !already_in_channel;
4285//         let open_room = if already_in_channel {
4286//             active_call.room().cloned()
4287//         } else {
4288//             None
4289//         };
4290//         (should_prompt, open_room)
4291//     });
4292
4293//     if let Some(room) = open_room {
4294//         let task = room.update(cx, |room, cx| {
4295//             if let Some((project, host)) = room.most_active_project(cx) {
4296//                 return Some(join_remote_project(project, host, app_state.clone(), cx));
4297//             }
4298
4299//             None
4300//         });
4301//         if let Some(task) = task {
4302//             task.await?;
4303//         }
4304//         return anyhow::Ok(true);
4305//     }
4306
4307//     if should_prompt {
4308//         if let Some(workspace) = requesting_window {
4309//             if let Some(window) = workspace.update(cx, |cx| cx.window()) {
4310//                 let answer = window.prompt(
4311//                     PromptLevel::Warning,
4312//                     "Leaving this call will unshare your current project.\nDo you want to switch channels?",
4313//                     &["Yes, Join Channel", "Cancel"],
4314//                     cx,
4315//                 );
4316
4317//                 if let Some(mut answer) = answer {
4318//                     if answer.next().await == Some(1) {
4319//                         return Ok(false);
4320//                     }
4321//                 }
4322//             } else {
4323//                 return Ok(false); // unreachable!() hopefully
4324//             }
4325//         } else {
4326//             return Ok(false); // unreachable!() hopefully
4327//         }
4328//     }
4329
4330//     let client = cx.read(|cx| active_call.read(cx).client());
4331
4332//     let mut client_status = client.status();
4333
4334//     // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
4335//     'outer: loop {
4336//         let Some(status) = client_status.recv().await else {
4337//             return Err(anyhow!("error connecting"));
4338//         };
4339
4340//         match status {
4341//             Status::Connecting
4342//             | Status::Authenticating
4343//             | Status::Reconnecting
4344//             | Status::Reauthenticating => continue,
4345//             Status::Connected { .. } => break 'outer,
4346//             Status::SignedOut => return Err(anyhow!("not signed in")),
4347//             Status::UpgradeRequired => return Err(anyhow!("zed is out of date")),
4348//             Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
4349//                 return Err(anyhow!("zed is offline"))
4350//             }
4351//         }
4352//     }
4353
4354//     let room = active_call
4355//         .update(cx, |active_call, cx| {
4356//             active_call.join_channel(channel_id, cx)
4357//         })
4358//         .await?;
4359
4360//     room.update(cx, |room, _| room.room_update_completed())
4361//         .await;
4362
4363//     let task = room.update(cx, |room, cx| {
4364//         if let Some((project, host)) = room.most_active_project(cx) {
4365//             return Some(join_remote_project(project, host, app_state.clone(), cx));
4366//         }
4367
4368//         None
4369//     });
4370//     if let Some(task) = task {
4371//         task.await?;
4372//         return anyhow::Ok(true);
4373//     }
4374//     anyhow::Ok(false)
4375// }
4376
4377// pub fn join_channel(
4378//     channel_id: u64,
4379//     app_state: Arc<AppState>,
4380//     requesting_window: Option<WindowHandle<Workspace>>,
4381//     cx: &mut AppContext,
4382// ) -> Task<Result<()>> {
4383//     let active_call = ActiveCall::global(cx);
4384//     cx.spawn(|mut cx| async move {
4385//         let result = join_channel_internal(
4386//             channel_id,
4387//             &app_state,
4388//             requesting_window,
4389//             &active_call,
4390//             &mut cx,
4391//         )
4392//         .await;
4393
4394//         // join channel succeeded, and opened a window
4395//         if matches!(result, Ok(true)) {
4396//             return anyhow::Ok(());
4397//         }
4398
4399//         if requesting_window.is_some() {
4400//             return anyhow::Ok(());
4401//         }
4402
4403//         // find an existing workspace to focus and show call controls
4404//         let mut active_window = activate_any_workspace_window(&mut cx);
4405//         if active_window.is_none() {
4406//             // no open workspaces, make one to show the error in (blergh)
4407//             cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), requesting_window, cx))
4408//                 .await;
4409//         }
4410
4411//         active_window = activate_any_workspace_window(&mut cx);
4412//         if active_window.is_none() {
4413//             return result.map(|_| ()); // unreachable!() assuming new_local always opens a window
4414//         }
4415
4416//         if let Err(err) = result {
4417//             let prompt = active_window.unwrap().prompt(
4418//                 PromptLevel::Critical,
4419//                 &format!("Failed to join channel: {}", err),
4420//                 &["Ok"],
4421//                 &mut cx,
4422//             );
4423//             if let Some(mut prompt) = prompt {
4424//                 prompt.next().await;
4425//             } else {
4426//                 return Err(err);
4427//             }
4428//         }
4429
4430//         // return ok, we showed the error to the user.
4431//         return anyhow::Ok(());
4432//     })
4433// }
4434
4435// pub fn activate_any_workspace_window(cx: &mut AsyncAppContext) -> Option<AnyWindowHandle> {
4436//     for window in cx.windows() {
4437//         let found = window.update(cx, |cx| {
4438//             let is_workspace = cx.root_view().clone().downcast::<Workspace>().is_some();
4439//             if is_workspace {
4440//                 cx.activate_window();
4441//             }
4442//             is_workspace
4443//         });
4444//         if found == Some(true) {
4445//             return Some(window);
4446//         }
4447//     }
4448//     None
4449// }
4450
4451#[allow(clippy::type_complexity)]
4452pub fn open_paths(
4453    abs_paths: &[PathBuf],
4454    app_state: &Arc<AppState>,
4455    requesting_window: Option<WindowHandle<Workspace>>,
4456    cx: &mut AppContext,
4457) -> Task<
4458    anyhow::Result<(
4459        WindowHandle<Workspace>,
4460        Vec<Option<Result<Box<dyn ItemHandle>, anyhow::Error>>>,
4461    )>,
4462> {
4463    let app_state = app_state.clone();
4464    let abs_paths = abs_paths.to_vec();
4465    // Open paths in existing workspace if possible
4466    let existing = activate_workspace_for_project(cx, {
4467        let abs_paths = abs_paths.clone();
4468        move |project, cx| project.contains_paths(&abs_paths, cx)
4469    });
4470    cx.spawn(move |mut cx| async move {
4471        if let Some(existing) = existing {
4472            // // Ok((
4473            //     existing.clone(),
4474            //     cx.update_window_root(&existing, |workspace, cx| {
4475            //         workspace.open_paths(abs_paths, true, cx)
4476            //     })?
4477            //     .await,
4478            // ))
4479            todo!()
4480        } else {
4481            cx.update(move |cx| {
4482                Workspace::new_local(abs_paths, app_state.clone(), requesting_window, cx)
4483            })?
4484            .await
4485        }
4486    })
4487}
4488
4489pub fn open_new(
4490    app_state: &Arc<AppState>,
4491    cx: &mut AppContext,
4492    init: impl FnOnce(&mut Workspace, &mut ViewContext<Workspace>) + 'static + Send,
4493) -> Task<()> {
4494    let task = Workspace::new_local(Vec::new(), app_state.clone(), None, cx);
4495    cx.spawn(|mut cx| async move {
4496        if let Some((workspace, opened_paths)) = task.await.log_err() {
4497            workspace
4498                .update(&mut cx, |workspace, cx| {
4499                    if opened_paths.is_empty() {
4500                        init(workspace, cx)
4501                    }
4502                })
4503                .log_err();
4504        }
4505    })
4506}
4507
4508// pub fn create_and_open_local_file(
4509//     path: &'static Path,
4510//     cx: &mut ViewContext<Workspace>,
4511//     default_content: impl 'static + Send + FnOnce() -> Rope,
4512// ) -> Task<Result<Box<dyn ItemHandle>>> {
4513//     cx.spawn(|workspace, mut cx| async move {
4514//         let fs = workspace.read_with(&cx, |workspace, _| workspace.app_state().fs.clone())?;
4515//         if !fs.is_file(path).await {
4516//             fs.create_file(path, Default::default()).await?;
4517//             fs.save(path, &default_content(), Default::default())
4518//                 .await?;
4519//         }
4520
4521//         let mut items = workspace
4522//             .update(&mut cx, |workspace, cx| {
4523//                 workspace.with_local_workspace(cx, |workspace, cx| {
4524//                     workspace.open_paths(vec![path.to_path_buf()], false, cx)
4525//                 })
4526//             })?
4527//             .await?
4528//             .await;
4529
4530//         let item = items.pop().flatten();
4531//         item.ok_or_else(|| anyhow!("path {path:?} is not a file"))?
4532//     })
4533// }
4534
4535// pub fn join_remote_project(
4536//     project_id: u64,
4537//     follow_user_id: u64,
4538//     app_state: Arc<AppState>,
4539//     cx: &mut AppContext,
4540// ) -> Task<Result<()>> {
4541//     cx.spawn(|mut cx| async move {
4542//         let windows = cx.windows();
4543//         let existing_workspace = windows.into_iter().find_map(|window| {
4544//             window.downcast::<Workspace>().and_then(|window| {
4545//                 window
4546//                     .read_root_with(&cx, |workspace, cx| {
4547//                         if workspace.project().read(cx).remote_id() == Some(project_id) {
4548//                             Some(cx.handle().downgrade())
4549//                         } else {
4550//                             None
4551//                         }
4552//                     })
4553//                     .unwrap_or(None)
4554//             })
4555//         });
4556
4557//         let workspace = if let Some(existing_workspace) = existing_workspace {
4558//             existing_workspace
4559//         } else {
4560//             let active_call = cx.read(ActiveCall::global);
4561//             let room = active_call
4562//                 .read_with(&cx, |call, _| call.room().cloned())
4563//                 .ok_or_else(|| anyhow!("not in a call"))?;
4564//             let project = room
4565//                 .update(&mut cx, |room, cx| {
4566//                     room.join_project(
4567//                         project_id,
4568//                         app_state.languages.clone(),
4569//                         app_state.fs.clone(),
4570//                         cx,
4571//                     )
4572//                 })
4573//                 .await?;
4574
4575//             let window_bounds_override = window_bounds_env_override(&cx);
4576//             let window = cx.add_window(
4577//                 (app_state.build_window_options)(
4578//                     window_bounds_override,
4579//                     None,
4580//                     cx.platform().as_ref(),
4581//                 ),
4582//                 |cx| Workspace::new(0, project, app_state.clone(), cx),
4583//             );
4584//             let workspace = window.root(&cx).unwrap();
4585//             (app_state.initialize_workspace)(
4586//                 workspace.downgrade(),
4587//                 false,
4588//                 app_state.clone(),
4589//                 cx.clone(),
4590//             )
4591//             .await
4592//             .log_err();
4593
4594//             workspace.downgrade()
4595//         };
4596
4597//         workspace.window().activate(&mut cx);
4598//         cx.platform().activate(true);
4599
4600//         workspace.update(&mut cx, |workspace, cx| {
4601//             if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
4602//                 let follow_peer_id = room
4603//                     .read(cx)
4604//                     .remote_participants()
4605//                     .iter()
4606//                     .find(|(_, participant)| participant.user.id == follow_user_id)
4607//                     .map(|(_, p)| p.peer_id)
4608//                     .or_else(|| {
4609//                         // If we couldn't follow the given user, follow the host instead.
4610//                         let collaborator = workspace
4611//                             .project()
4612//                             .read(cx)
4613//                             .collaborators()
4614//                             .values()
4615//                             .find(|collaborator| collaborator.replica_id == 0)?;
4616//                         Some(collaborator.peer_id)
4617//                     });
4618
4619//                 if let Some(follow_peer_id) = follow_peer_id {
4620//                     workspace
4621//                         .follow(follow_peer_id, cx)
4622//                         .map(|follow| follow.detach_and_log_err(cx));
4623//                 }
4624//             }
4625//         })?;
4626
4627//         anyhow::Ok(())
4628//     })
4629// }
4630
4631// pub fn restart(_: &Restart, cx: &mut AppContext) {
4632//     let should_confirm = settings::get::<WorkspaceSettings>(cx).confirm_quit;
4633//     cx.spawn(|mut cx| async move {
4634//         let mut workspace_windows = cx
4635//             .windows()
4636//             .into_iter()
4637//             .filter_map(|window| window.downcast::<Workspace>())
4638//             .collect::<Vec<_>>();
4639
4640//         // If multiple windows have unsaved changes, and need a save prompt,
4641//         // prompt in the active window before switching to a different window.
4642//         workspace_windows.sort_by_key(|window| window.is_active(&cx) == Some(false));
4643
4644//         if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
4645//             let answer = window.prompt(
4646//                 PromptLevel::Info,
4647//                 "Are you sure you want to restart?",
4648//                 &["Restart", "Cancel"],
4649//                 &mut cx,
4650//             );
4651
4652//             if let Some(mut answer) = answer {
4653//                 let answer = answer.next().await;
4654//                 if answer != Some(0) {
4655//                     return Ok(());
4656//                 }
4657//             }
4658//         }
4659
4660//         // If the user cancels any save prompt, then keep the app open.
4661//         for window in workspace_windows {
4662//             if let Some(should_close) = window.update_root(&mut cx, |workspace, cx| {
4663//                 workspace.prepare_to_close(true, cx)
4664//             }) {
4665//                 if !should_close.await? {
4666//                     return Ok(());
4667//                 }
4668//             }
4669//         }
4670//         cx.platform().restart();
4671//         anyhow::Ok(())
4672//     })
4673//     .detach_and_log_err(cx);
4674// }
4675
4676fn parse_pixel_position_env_var(value: &str) -> Option<Point<GlobalPixels>> {
4677    let mut parts = value.split(',');
4678    let x: usize = parts.next()?.parse().ok()?;
4679    let y: usize = parts.next()?.parse().ok()?;
4680    Some(point((x as f64).into(), (y as f64).into()))
4681}
4682
4683fn parse_pixel_size_env_var(value: &str) -> Option<Size<GlobalPixels>> {
4684    let mut parts = value.split(',');
4685    let width: usize = parts.next()?.parse().ok()?;
4686    let height: usize = parts.next()?.parse().ok()?;
4687    Some(size((width as f64).into(), (height as f64).into()))
4688}
4689
4690// #[cfg(test)]
4691// mod tests {
4692//     use super::*;
4693//     use crate::{
4694//         dock::test::{TestPanel, TestPanelEvent},
4695//         item::test::{TestItem, TestItemEvent, TestProjectItem},
4696//     };
4697//     use fs::FakeFs;
4698//     use gpui::{executor::Deterministic, test::EmptyView, TestAppContext};
4699//     use project::{Project, ProjectEntryId};
4700//     use serde_json::json;
4701//     use settings::SettingsStore;
4702//     use std::{cell::RefCell, rc::Rc};
4703
4704//     #[gpui::test]
4705//     async fn test_tab_disambiguation(cx: &mut TestAppContext) {
4706//         init_test(cx);
4707
4708//         let fs = FakeFs::new(cx.background());
4709//         let project = Project::test(fs, [], cx).await;
4710//         let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
4711//         let workspace = window.root(cx);
4712
4713//         // Adding an item with no ambiguity renders the tab without detail.
4714//         let item1 = window.build_view(cx, |_| {
4715//             let mut item = TestItem::new();
4716//             item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
4717//             item
4718//         });
4719//         workspace.update(cx, |workspace, cx| {
4720//             workspace.add_item(Box::new(item1.clone()), cx);
4721//         });
4722//         item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), None));
4723
4724//         // Adding an item that creates ambiguity increases the level of detail on
4725//         // both tabs.
4726//         let item2 = window.build_view(cx, |_| {
4727//             let mut item = TestItem::new();
4728//             item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
4729//             item
4730//         });
4731//         workspace.update(cx, |workspace, cx| {
4732//             workspace.add_item(Box::new(item2.clone()), cx);
4733//         });
4734//         item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
4735//         item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
4736
4737//         // Adding an item that creates ambiguity increases the level of detail only
4738//         // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
4739//         // we stop at the highest detail available.
4740//         let item3 = window.build_view(cx, |_| {
4741//             let mut item = TestItem::new();
4742//             item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
4743//             item
4744//         });
4745//         workspace.update(cx, |workspace, cx| {
4746//             workspace.add_item(Box::new(item3.clone()), cx);
4747//         });
4748//         item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
4749//         item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
4750//         item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
4751//     }
4752
4753//     #[gpui::test]
4754//     async fn test_tracking_active_path(cx: &mut TestAppContext) {
4755//         init_test(cx);
4756
4757//         let fs = FakeFs::new(cx.background());
4758//         fs.insert_tree(
4759//             "/root1",
4760//             json!({
4761//                 "one.txt": "",
4762//                 "two.txt": "",
4763//             }),
4764//         )
4765//         .await;
4766//         fs.insert_tree(
4767//             "/root2",
4768//             json!({
4769//                 "three.txt": "",
4770//             }),
4771//         )
4772//         .await;
4773
4774//         let project = Project::test(fs, ["root1".as_ref()], cx).await;
4775//         let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
4776//         let workspace = window.root(cx);
4777//         let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
4778//         let worktree_id = project.read_with(cx, |project, cx| {
4779//             project.worktrees(cx).next().unwrap().read(cx).id()
4780//         });
4781
4782//         let item1 = window.build_view(cx, |cx| {
4783//             TestItem::new().with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
4784//         });
4785//         let item2 = window.build_view(cx, |cx| {
4786//             TestItem::new().with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
4787//         });
4788
4789//         // Add an item to an empty pane
4790//         workspace.update(cx, |workspace, cx| workspace.add_item(Box::new(item1), cx));
4791//         project.read_with(cx, |project, cx| {
4792//             assert_eq!(
4793//                 project.active_entry(),
4794//                 project
4795//                     .entry_for_path(&(worktree_id, "one.txt").into(), cx)
4796//                     .map(|e| e.id)
4797//             );
4798//         });
4799//         assert_eq!(window.current_title(cx).as_deref(), Some("one.txt β€” root1"));
4800
4801//         // Add a second item to a non-empty pane
4802//         workspace.update(cx, |workspace, cx| workspace.add_item(Box::new(item2), cx));
4803//         assert_eq!(window.current_title(cx).as_deref(), Some("two.txt β€” root1"));
4804//         project.read_with(cx, |project, cx| {
4805//             assert_eq!(
4806//                 project.active_entry(),
4807//                 project
4808//                     .entry_for_path(&(worktree_id, "two.txt").into(), cx)
4809//                     .map(|e| e.id)
4810//             );
4811//         });
4812
4813//         // Close the active item
4814//         pane.update(cx, |pane, cx| {
4815//             pane.close_active_item(&Default::default(), cx).unwrap()
4816//         })
4817//         .await
4818//         .unwrap();
4819//         assert_eq!(window.current_title(cx).as_deref(), Some("one.txt β€” root1"));
4820//         project.read_with(cx, |project, cx| {
4821//             assert_eq!(
4822//                 project.active_entry(),
4823//                 project
4824//                     .entry_for_path(&(worktree_id, "one.txt").into(), cx)
4825//                     .map(|e| e.id)
4826//             );
4827//         });
4828
4829//         // Add a project folder
4830//         project
4831//             .update(cx, |project, cx| {
4832//                 project.find_or_create_local_worktree("/root2", true, cx)
4833//             })
4834//             .await
4835//             .unwrap();
4836//         assert_eq!(
4837//             window.current_title(cx).as_deref(),
4838//             Some("one.txt β€” root1, root2")
4839//         );
4840
4841//         // Remove a project folder
4842//         project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
4843//         assert_eq!(window.current_title(cx).as_deref(), Some("one.txt β€” root2"));
4844//     }
4845
4846//     #[gpui::test]
4847//     async fn test_close_window(cx: &mut TestAppContext) {
4848//         init_test(cx);
4849
4850//         let fs = FakeFs::new(cx.background());
4851//         fs.insert_tree("/root", json!({ "one": "" })).await;
4852
4853//         let project = Project::test(fs, ["root".as_ref()], cx).await;
4854//         let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
4855//         let workspace = window.root(cx);
4856
4857//         // When there are no dirty items, there's nothing to do.
4858//         let item1 = window.build_view(cx, |_| TestItem::new());
4859//         workspace.update(cx, |w, cx| w.add_item(Box::new(item1.clone()), cx));
4860//         let task = workspace.update(cx, |w, cx| w.prepare_to_close(false, cx));
4861//         assert!(task.await.unwrap());
4862
4863//         // When there are dirty untitled items, prompt to save each one. If the user
4864//         // cancels any prompt, then abort.
4865//         let item2 = window.build_view(cx, |_| TestItem::new().with_dirty(true));
4866//         let item3 = window.build_view(cx, |cx| {
4867//             TestItem::new()
4868//                 .with_dirty(true)
4869//                 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
4870//         });
4871//         workspace.update(cx, |w, cx| {
4872//             w.add_item(Box::new(item2.clone()), cx);
4873//             w.add_item(Box::new(item3.clone()), cx);
4874//         });
4875//         let task = workspace.update(cx, |w, cx| w.prepare_to_close(false, cx));
4876//         cx.foreground().run_until_parked();
4877//         window.simulate_prompt_answer(2, cx); // cancel save all
4878//         cx.foreground().run_until_parked();
4879//         window.simulate_prompt_answer(2, cx); // cancel save all
4880//         cx.foreground().run_until_parked();
4881//         assert!(!window.has_pending_prompt(cx));
4882//         assert!(!task.await.unwrap());
4883//     }
4884
4885//     #[gpui::test]
4886//     async fn test_close_pane_items(cx: &mut TestAppContext) {
4887//         init_test(cx);
4888
4889//         let fs = FakeFs::new(cx.background());
4890
4891//         let project = Project::test(fs, None, cx).await;
4892//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
4893//         let workspace = window.root(cx);
4894
4895//         let item1 = window.build_view(cx, |cx| {
4896//             TestItem::new()
4897//                 .with_dirty(true)
4898//                 .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
4899//         });
4900//         let item2 = window.build_view(cx, |cx| {
4901//             TestItem::new()
4902//                 .with_dirty(true)
4903//                 .with_conflict(true)
4904//                 .with_project_items(&[TestProjectItem::new(2, "2.txt", cx)])
4905//         });
4906//         let item3 = window.build_view(cx, |cx| {
4907//             TestItem::new()
4908//                 .with_dirty(true)
4909//                 .with_conflict(true)
4910//                 .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
4911//         });
4912//         let item4 = window.build_view(cx, |cx| {
4913//             TestItem::new()
4914//                 .with_dirty(true)
4915//                 .with_project_items(&[TestProjectItem::new_untitled(cx)])
4916//         });
4917//         let pane = workspace.update(cx, |workspace, cx| {
4918//             workspace.add_item(Box::new(item1.clone()), cx);
4919//             workspace.add_item(Box::new(item2.clone()), cx);
4920//             workspace.add_item(Box::new(item3.clone()), cx);
4921//             workspace.add_item(Box::new(item4.clone()), cx);
4922//             workspace.active_pane().clone()
4923//         });
4924
4925//         let close_items = pane.update(cx, |pane, cx| {
4926//             pane.activate_item(1, true, true, cx);
4927//             assert_eq!(pane.active_item().unwrap().id(), item2.id());
4928//             let item1_id = item1.id();
4929//             let item3_id = item3.id();
4930//             let item4_id = item4.id();
4931//             pane.close_items(cx, SaveIntent::Close, move |id| {
4932//                 [item1_id, item3_id, item4_id].contains(&id)
4933//             })
4934//         });
4935//         cx.foreground().run_until_parked();
4936
4937//         assert!(window.has_pending_prompt(cx));
4938//         // Ignore "Save all" prompt
4939//         window.simulate_prompt_answer(2, cx);
4940//         cx.foreground().run_until_parked();
4941//         // There's a prompt to save item 1.
4942//         pane.read_with(cx, |pane, _| {
4943//             assert_eq!(pane.items_len(), 4);
4944//             assert_eq!(pane.active_item().unwrap().id(), item1.id());
4945//         });
4946//         // Confirm saving item 1.
4947//         window.simulate_prompt_answer(0, cx);
4948//         cx.foreground().run_until_parked();
4949
4950//         // Item 1 is saved. There's a prompt to save item 3.
4951//         pane.read_with(cx, |pane, cx| {
4952//             assert_eq!(item1.read(cx).save_count, 1);
4953//             assert_eq!(item1.read(cx).save_as_count, 0);
4954//             assert_eq!(item1.read(cx).reload_count, 0);
4955//             assert_eq!(pane.items_len(), 3);
4956//             assert_eq!(pane.active_item().unwrap().id(), item3.id());
4957//         });
4958//         assert!(window.has_pending_prompt(cx));
4959
4960//         // Cancel saving item 3.
4961//         window.simulate_prompt_answer(1, cx);
4962//         cx.foreground().run_until_parked();
4963
4964//         // Item 3 is reloaded. There's a prompt to save item 4.
4965//         pane.read_with(cx, |pane, cx| {
4966//             assert_eq!(item3.read(cx).save_count, 0);
4967//             assert_eq!(item3.read(cx).save_as_count, 0);
4968//             assert_eq!(item3.read(cx).reload_count, 1);
4969//             assert_eq!(pane.items_len(), 2);
4970//             assert_eq!(pane.active_item().unwrap().id(), item4.id());
4971//         });
4972//         assert!(window.has_pending_prompt(cx));
4973
4974//         // Confirm saving item 4.
4975//         window.simulate_prompt_answer(0, cx);
4976//         cx.foreground().run_until_parked();
4977
4978//         // There's a prompt for a path for item 4.
4979//         cx.simulate_new_path_selection(|_| Some(Default::default()));
4980//         close_items.await.unwrap();
4981
4982//         // The requested items are closed.
4983//         pane.read_with(cx, |pane, cx| {
4984//             assert_eq!(item4.read(cx).save_count, 0);
4985//             assert_eq!(item4.read(cx).save_as_count, 1);
4986//             assert_eq!(item4.read(cx).reload_count, 0);
4987//             assert_eq!(pane.items_len(), 1);
4988//             assert_eq!(pane.active_item().unwrap().id(), item2.id());
4989//         });
4990//     }
4991
4992//     #[gpui::test]
4993//     async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
4994//         init_test(cx);
4995
4996//         let fs = FakeFs::new(cx.background());
4997
4998//         let project = Project::test(fs, [], cx).await;
4999//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
5000//         let workspace = window.root(cx);
5001
5002//         // Create several workspace items with single project entries, and two
5003//         // workspace items with multiple project entries.
5004//         let single_entry_items = (0..=4)
5005//             .map(|project_entry_id| {
5006//                 window.build_view(cx, |cx| {
5007//                     TestItem::new()
5008//                         .with_dirty(true)
5009//                         .with_project_items(&[TestProjectItem::new(
5010//                             project_entry_id,
5011//                             &format!("{project_entry_id}.txt"),
5012//                             cx,
5013//                         )])
5014//                 })
5015//             })
5016//             .collect::<Vec<_>>();
5017//         let item_2_3 = window.build_view(cx, |cx| {
5018//             TestItem::new()
5019//                 .with_dirty(true)
5020//                 .with_singleton(false)
5021//                 .with_project_items(&[
5022//                     single_entry_items[2].read(cx).project_items[0].clone(),
5023//                     single_entry_items[3].read(cx).project_items[0].clone(),
5024//                 ])
5025//         });
5026//         let item_3_4 = window.build_view(cx, |cx| {
5027//             TestItem::new()
5028//                 .with_dirty(true)
5029//                 .with_singleton(false)
5030//                 .with_project_items(&[
5031//                     single_entry_items[3].read(cx).project_items[0].clone(),
5032//                     single_entry_items[4].read(cx).project_items[0].clone(),
5033//                 ])
5034//         });
5035
5036//         // Create two panes that contain the following project entries:
5037//         //   left pane:
5038//         //     multi-entry items:   (2, 3)
5039//         //     single-entry items:  0, 1, 2, 3, 4
5040//         //   right pane:
5041//         //     single-entry items:  1
5042//         //     multi-entry items:   (3, 4)
5043//         let left_pane = workspace.update(cx, |workspace, cx| {
5044//             let left_pane = workspace.active_pane().clone();
5045//             workspace.add_item(Box::new(item_2_3.clone()), cx);
5046//             for item in single_entry_items {
5047//                 workspace.add_item(Box::new(item), cx);
5048//             }
5049//             left_pane.update(cx, |pane, cx| {
5050//                 pane.activate_item(2, true, true, cx);
5051//             });
5052
5053//             workspace
5054//                 .split_and_clone(left_pane.clone(), SplitDirection::Right, cx)
5055//                 .unwrap();
5056
5057//             left_pane
5058//         });
5059
5060//         //Need to cause an effect flush in order to respect new focus
5061//         workspace.update(cx, |workspace, cx| {
5062//             workspace.add_item(Box::new(item_3_4.clone()), cx);
5063//             cx.focus(&left_pane);
5064//         });
5065
5066//         // When closing all of the items in the left pane, we should be prompted twice:
5067//         // once for project entry 0, and once for project entry 2. After those two
5068//         // prompts, the task should complete.
5069
5070//         let close = left_pane.update(cx, |pane, cx| {
5071//             pane.close_items(cx, SaveIntent::Close, move |_| true)
5072//         });
5073//         cx.foreground().run_until_parked();
5074//         // Discard "Save all" prompt
5075//         window.simulate_prompt_answer(2, cx);
5076
5077//         cx.foreground().run_until_parked();
5078//         left_pane.read_with(cx, |pane, cx| {
5079//             assert_eq!(
5080//                 pane.active_item().unwrap().project_entry_ids(cx).as_slice(),
5081//                 &[ProjectEntryId::from_proto(0)]
5082//             );
5083//         });
5084//         window.simulate_prompt_answer(0, cx);
5085
5086//         cx.foreground().run_until_parked();
5087//         left_pane.read_with(cx, |pane, cx| {
5088//             assert_eq!(
5089//                 pane.active_item().unwrap().project_entry_ids(cx).as_slice(),
5090//                 &[ProjectEntryId::from_proto(2)]
5091//             );
5092//         });
5093//         window.simulate_prompt_answer(0, cx);
5094
5095//         cx.foreground().run_until_parked();
5096//         close.await.unwrap();
5097//         left_pane.read_with(cx, |pane, _| {
5098//             assert_eq!(pane.items_len(), 0);
5099//         });
5100//     }
5101
5102//     #[gpui::test]
5103//     async fn test_autosave(deterministic: Arc<Deterministic>, cx: &mut gpui::TestAppContext) {
5104//         init_test(cx);
5105
5106//         let fs = FakeFs::new(cx.background());
5107
5108//         let project = Project::test(fs, [], cx).await;
5109//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
5110//         let workspace = window.root(cx);
5111//         let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
5112
5113//         let item = window.build_view(cx, |cx| {
5114//             TestItem::new().with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
5115//         });
5116//         let item_id = item.id();
5117//         workspace.update(cx, |workspace, cx| {
5118//             workspace.add_item(Box::new(item.clone()), cx);
5119//         });
5120
5121//         // Autosave on window change.
5122//         item.update(cx, |item, cx| {
5123//             cx.update_global(|settings: &mut SettingsStore, cx| {
5124//                 settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
5125//                     settings.autosave = Some(AutosaveSetting::OnWindowChange);
5126//                 })
5127//             });
5128//             item.is_dirty = true;
5129//         });
5130
5131//         // Deactivating the window saves the file.
5132//         window.simulate_deactivation(cx);
5133//         deterministic.run_until_parked();
5134//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
5135
5136//         // Autosave on focus change.
5137//         item.update(cx, |item, cx| {
5138//             cx.focus_self();
5139//             cx.update_global(|settings: &mut SettingsStore, cx| {
5140//                 settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
5141//                     settings.autosave = Some(AutosaveSetting::OnFocusChange);
5142//                 })
5143//             });
5144//             item.is_dirty = true;
5145//         });
5146
5147//         // Blurring the item saves the file.
5148//         item.update(cx, |_, cx| cx.blur());
5149//         deterministic.run_until_parked();
5150//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
5151
5152//         // Deactivating the window still saves the file.
5153//         window.simulate_activation(cx);
5154//         item.update(cx, |item, cx| {
5155//             cx.focus_self();
5156//             item.is_dirty = true;
5157//         });
5158//         window.simulate_deactivation(cx);
5159
5160//         deterministic.run_until_parked();
5161//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
5162
5163//         // Autosave after delay.
5164//         item.update(cx, |item, cx| {
5165//             cx.update_global(|settings: &mut SettingsStore, cx| {
5166//                 settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
5167//                     settings.autosave = Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
5168//                 })
5169//             });
5170//             item.is_dirty = true;
5171//             cx.emit(TestItemEvent::Edit);
5172//         });
5173
5174//         // Delay hasn't fully expired, so the file is still dirty and unsaved.
5175//         deterministic.advance_clock(Duration::from_millis(250));
5176//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
5177
5178//         // After delay expires, the file is saved.
5179//         deterministic.advance_clock(Duration::from_millis(250));
5180//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
5181
5182//         // Autosave on focus change, ensuring closing the tab counts as such.
5183//         item.update(cx, |item, cx| {
5184//             cx.update_global(|settings: &mut SettingsStore, cx| {
5185//                 settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
5186//                     settings.autosave = Some(AutosaveSetting::OnFocusChange);
5187//                 })
5188//             });
5189//             item.is_dirty = true;
5190//         });
5191
5192//         pane.update(cx, |pane, cx| {
5193//             pane.close_items(cx, SaveIntent::Close, move |id| id == item_id)
5194//         })
5195//         .await
5196//         .unwrap();
5197//         assert!(!window.has_pending_prompt(cx));
5198//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
5199
5200//         // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
5201//         workspace.update(cx, |workspace, cx| {
5202//             workspace.add_item(Box::new(item.clone()), cx);
5203//         });
5204//         item.update(cx, |item, cx| {
5205//             item.project_items[0].update(cx, |item, _| {
5206//                 item.entry_id = None;
5207//             });
5208//             item.is_dirty = true;
5209//             cx.blur();
5210//         });
5211//         deterministic.run_until_parked();
5212//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
5213
5214//         // Ensure autosave is prevented for deleted files also when closing the buffer.
5215//         let _close_items = pane.update(cx, |pane, cx| {
5216//             pane.close_items(cx, SaveIntent::Close, move |id| id == item_id)
5217//         });
5218//         deterministic.run_until_parked();
5219//         assert!(window.has_pending_prompt(cx));
5220//         item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
5221//     }
5222
5223//     #[gpui::test]
5224//     async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
5225//         init_test(cx);
5226
5227//         let fs = FakeFs::new(cx.background());
5228
5229//         let project = Project::test(fs, [], cx).await;
5230//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
5231//         let workspace = window.root(cx);
5232
5233//         let item = window.build_view(cx, |cx| {
5234//             TestItem::new().with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
5235//         });
5236//         let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
5237//         let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
5238//         let toolbar_notify_count = Rc::new(RefCell::new(0));
5239
5240//         workspace.update(cx, |workspace, cx| {
5241//             workspace.add_item(Box::new(item.clone()), cx);
5242//             let toolbar_notification_count = toolbar_notify_count.clone();
5243//             cx.observe(&toolbar, move |_, _, _| {
5244//                 *toolbar_notification_count.borrow_mut() += 1
5245//             })
5246//             .detach();
5247//         });
5248
5249//         pane.read_with(cx, |pane, _| {
5250//             assert!(!pane.can_navigate_backward());
5251//             assert!(!pane.can_navigate_forward());
5252//         });
5253
5254//         item.update(cx, |item, cx| {
5255//             item.set_state("one".to_string(), cx);
5256//         });
5257
5258//         // Toolbar must be notified to re-render the navigation buttons
5259//         assert_eq!(*toolbar_notify_count.borrow(), 1);
5260
5261//         pane.read_with(cx, |pane, _| {
5262//             assert!(pane.can_navigate_backward());
5263//             assert!(!pane.can_navigate_forward());
5264//         });
5265
5266//         workspace
5267//             .update(cx, |workspace, cx| workspace.go_back(pane.downgrade(), cx))
5268//             .await
5269//             .unwrap();
5270
5271//         assert_eq!(*toolbar_notify_count.borrow(), 3);
5272//         pane.read_with(cx, |pane, _| {
5273//             assert!(!pane.can_navigate_backward());
5274//             assert!(pane.can_navigate_forward());
5275//         });
5276//     }
5277
5278//     #[gpui::test]
5279//     async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
5280//         init_test(cx);
5281//         let fs = FakeFs::new(cx.background());
5282
5283//         let project = Project::test(fs, [], cx).await;
5284//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
5285//         let workspace = window.root(cx);
5286
5287//         let panel = workspace.update(cx, |workspace, cx| {
5288//             let panel = cx.build_view(|_| TestPanel::new(DockPosition::Right));
5289//             workspace.add_panel(panel.clone(), cx);
5290
5291//             workspace
5292//                 .right_dock()
5293//                 .update(cx, |right_dock, cx| right_dock.set_open(true, cx));
5294
5295//             panel
5296//         });
5297
5298//         let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
5299//         pane.update(cx, |pane, cx| {
5300//             let item = cx.build_view(|_| TestItem::new());
5301//             pane.add_item(Box::new(item), true, true, None, cx);
5302//         });
5303
5304//         // Transfer focus from center to panel
5305//         workspace.update(cx, |workspace, cx| {
5306//             workspace.toggle_panel_focus::<TestPanel>(cx);
5307//         });
5308
5309//         workspace.read_with(cx, |workspace, cx| {
5310//             assert!(workspace.right_dock().read(cx).is_open());
5311//             assert!(!panel.is_zoomed(cx));
5312//             assert!(panel.has_focus(cx));
5313//         });
5314
5315//         // Transfer focus from panel to center
5316//         workspace.update(cx, |workspace, cx| {
5317//             workspace.toggle_panel_focus::<TestPanel>(cx);
5318//         });
5319
5320//         workspace.read_with(cx, |workspace, cx| {
5321//             assert!(workspace.right_dock().read(cx).is_open());
5322//             assert!(!panel.is_zoomed(cx));
5323//             assert!(!panel.has_focus(cx));
5324//         });
5325
5326//         // Close the dock
5327//         workspace.update(cx, |workspace, cx| {
5328//             workspace.toggle_dock(DockPosition::Right, cx);
5329//         });
5330
5331//         workspace.read_with(cx, |workspace, cx| {
5332//             assert!(!workspace.right_dock().read(cx).is_open());
5333//             assert!(!panel.is_zoomed(cx));
5334//             assert!(!panel.has_focus(cx));
5335//         });
5336
5337//         // Open the dock
5338//         workspace.update(cx, |workspace, cx| {
5339//             workspace.toggle_dock(DockPosition::Right, cx);
5340//         });
5341
5342//         workspace.read_with(cx, |workspace, cx| {
5343//             assert!(workspace.right_dock().read(cx).is_open());
5344//             assert!(!panel.is_zoomed(cx));
5345//             assert!(panel.has_focus(cx));
5346//         });
5347
5348//         // Focus and zoom panel
5349//         panel.update(cx, |panel, cx| {
5350//             cx.focus_self();
5351//             panel.set_zoomed(true, cx)
5352//         });
5353
5354//         workspace.read_with(cx, |workspace, cx| {
5355//             assert!(workspace.right_dock().read(cx).is_open());
5356//             assert!(panel.is_zoomed(cx));
5357//             assert!(panel.has_focus(cx));
5358//         });
5359
5360//         // Transfer focus to the center closes the dock
5361//         workspace.update(cx, |workspace, cx| {
5362//             workspace.toggle_panel_focus::<TestPanel>(cx);
5363//         });
5364
5365//         workspace.read_with(cx, |workspace, cx| {
5366//             assert!(!workspace.right_dock().read(cx).is_open());
5367//             assert!(panel.is_zoomed(cx));
5368//             assert!(!panel.has_focus(cx));
5369//         });
5370
5371//         // Transferring focus back to the panel keeps it zoomed
5372//         workspace.update(cx, |workspace, cx| {
5373//             workspace.toggle_panel_focus::<TestPanel>(cx);
5374//         });
5375
5376//         workspace.read_with(cx, |workspace, cx| {
5377//             assert!(workspace.right_dock().read(cx).is_open());
5378//             assert!(panel.is_zoomed(cx));
5379//             assert!(panel.has_focus(cx));
5380//         });
5381
5382//         // Close the dock while it is zoomed
5383//         workspace.update(cx, |workspace, cx| {
5384//             workspace.toggle_dock(DockPosition::Right, cx)
5385//         });
5386
5387//         workspace.read_with(cx, |workspace, cx| {
5388//             assert!(!workspace.right_dock().read(cx).is_open());
5389//             assert!(panel.is_zoomed(cx));
5390//             assert!(workspace.zoomed.is_none());
5391//             assert!(!panel.has_focus(cx));
5392//         });
5393
5394//         // Opening the dock, when it's zoomed, retains focus
5395//         workspace.update(cx, |workspace, cx| {
5396//             workspace.toggle_dock(DockPosition::Right, cx)
5397//         });
5398
5399//         workspace.read_with(cx, |workspace, cx| {
5400//             assert!(workspace.right_dock().read(cx).is_open());
5401//             assert!(panel.is_zoomed(cx));
5402//             assert!(workspace.zoomed.is_some());
5403//             assert!(panel.has_focus(cx));
5404//         });
5405
5406//         // Unzoom and close the panel, zoom the active pane.
5407//         panel.update(cx, |panel, cx| panel.set_zoomed(false, cx));
5408//         workspace.update(cx, |workspace, cx| {
5409//             workspace.toggle_dock(DockPosition::Right, cx)
5410//         });
5411//         pane.update(cx, |pane, cx| pane.toggle_zoom(&Default::default(), cx));
5412
5413//         // Opening a dock unzooms the pane.
5414//         workspace.update(cx, |workspace, cx| {
5415//             workspace.toggle_dock(DockPosition::Right, cx)
5416//         });
5417//         workspace.read_with(cx, |workspace, cx| {
5418//             let pane = pane.read(cx);
5419//             assert!(!pane.is_zoomed());
5420//             assert!(!pane.has_focus());
5421//             assert!(workspace.right_dock().read(cx).is_open());
5422//             assert!(workspace.zoomed.is_none());
5423//         });
5424//     }
5425
5426//     #[gpui::test]
5427//     async fn test_panels(cx: &mut gpui::TestAppContext) {
5428//         init_test(cx);
5429//         let fs = FakeFs::new(cx.background());
5430
5431//         let project = Project::test(fs, [], cx).await;
5432//         let window = cx.add_window(|cx| Workspace::test_new(project, cx));
5433//         let workspace = window.root(cx);
5434
5435//         let (panel_1, panel_2) = workspace.update(cx, |workspace, cx| {
5436//             // Add panel_1 on the left, panel_2 on the right.
5437//             let panel_1 = cx.build_view(|_| TestPanel::new(DockPosition::Left));
5438//             workspace.add_panel(panel_1.clone(), cx);
5439//             workspace
5440//                 .left_dock()
5441//                 .update(cx, |left_dock, cx| left_dock.set_open(true, cx));
5442//             let panel_2 = cx.build_view(|_| TestPanel::new(DockPosition::Right));
5443//             workspace.add_panel(panel_2.clone(), cx);
5444//             workspace
5445//                 .right_dock()
5446//                 .update(cx, |right_dock, cx| right_dock.set_open(true, cx));
5447
5448//             let left_dock = workspace.left_dock();
5449//             assert_eq!(
5450//                 left_dock.read(cx).visible_panel().unwrap().id(),
5451//                 panel_1.id()
5452//             );
5453//             assert_eq!(
5454//                 left_dock.read(cx).active_panel_size(cx).unwrap(),
5455//                 panel_1.size(cx)
5456//             );
5457
5458//             left_dock.update(cx, |left_dock, cx| {
5459//                 left_dock.resize_active_panel(Some(1337.), cx)
5460//             });
5461//             assert_eq!(
5462//                 workspace
5463//                     .right_dock()
5464//                     .read(cx)
5465//                     .visible_panel()
5466//                     .unwrap()
5467//                     .id(),
5468//                 panel_2.id()
5469//             );
5470
5471//             (panel_1, panel_2)
5472//         });
5473
5474//         // Move panel_1 to the right
5475//         panel_1.update(cx, |panel_1, cx| {
5476//             panel_1.set_position(DockPosition::Right, cx)
5477//         });
5478
5479//         workspace.update(cx, |workspace, cx| {
5480//             // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
5481//             // Since it was the only panel on the left, the left dock should now be closed.
5482//             assert!(!workspace.left_dock().read(cx).is_open());
5483//             assert!(workspace.left_dock().read(cx).visible_panel().is_none());
5484//             let right_dock = workspace.right_dock();
5485//             assert_eq!(
5486//                 right_dock.read(cx).visible_panel().unwrap().id(),
5487//                 panel_1.id()
5488//             );
5489//             assert_eq!(right_dock.read(cx).active_panel_size(cx).unwrap(), 1337.);
5490
5491//             // Now we move panel_2Β to the left
5492//             panel_2.set_position(DockPosition::Left, cx);
5493//         });
5494
5495//         workspace.update(cx, |workspace, cx| {
5496//             // Since panel_2 was not visible on the right, we don't open the left dock.
5497//             assert!(!workspace.left_dock().read(cx).is_open());
5498//             // And the right dock is unaffected in it's displaying of panel_1
5499//             assert!(workspace.right_dock().read(cx).is_open());
5500//             assert_eq!(
5501//                 workspace
5502//                     .right_dock()
5503//                     .read(cx)
5504//                     .visible_panel()
5505//                     .unwrap()
5506//                     .id(),
5507//                 panel_1.id()
5508//             );
5509//         });
5510
5511//         // Move panel_1 back to the left
5512//         panel_1.update(cx, |panel_1, cx| {
5513//             panel_1.set_position(DockPosition::Left, cx)
5514//         });
5515
5516//         workspace.update(cx, |workspace, cx| {
5517//             // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
5518//             let left_dock = workspace.left_dock();
5519//             assert!(left_dock.read(cx).is_open());
5520//             assert_eq!(
5521//                 left_dock.read(cx).visible_panel().unwrap().id(),
5522//                 panel_1.id()
5523//             );
5524//             assert_eq!(left_dock.read(cx).active_panel_size(cx).unwrap(), 1337.);
5525//             // And right the dock should be closed as it no longer has any panels.
5526//             assert!(!workspace.right_dock().read(cx).is_open());
5527
5528//             // Now we move panel_1 to the bottom
5529//             panel_1.set_position(DockPosition::Bottom, cx);
5530//         });
5531
5532//         workspace.update(cx, |workspace, cx| {
5533//             // Since panel_1 was visible on the left, we close the left dock.
5534//             assert!(!workspace.left_dock().read(cx).is_open());
5535//             // The bottom dock is sized based on the panel's default size,
5536//             // since the panel orientation changed from vertical to horizontal.
5537//             let bottom_dock = workspace.bottom_dock();
5538//             assert_eq!(
5539//                 bottom_dock.read(cx).active_panel_size(cx).unwrap(),
5540//                 panel_1.size(cx),
5541//             );
5542//             // Close bottom dock and move panel_1 back to the left.
5543//             bottom_dock.update(cx, |bottom_dock, cx| bottom_dock.set_open(false, cx));
5544//             panel_1.set_position(DockPosition::Left, cx);
5545//         });
5546
5547//         // Emit activated event on panel 1
5548//         panel_1.update(cx, |_, cx| cx.emit(TestPanelEvent::Activated));
5549
5550//         // Now the left dock is open and panel_1 is active and focused.
5551//         workspace.read_with(cx, |workspace, cx| {
5552//             let left_dock = workspace.left_dock();
5553//             assert!(left_dock.read(cx).is_open());
5554//             assert_eq!(
5555//                 left_dock.read(cx).visible_panel().unwrap().id(),
5556//                 panel_1.id()
5557//             );
5558//             assert!(panel_1.is_focused(cx));
5559//         });
5560
5561//         // Emit closed event on panel 2, which is not active
5562//         panel_2.update(cx, |_, cx| cx.emit(TestPanelEvent::Closed));
5563
5564//         // Wo don't close the left dock, because panel_2 wasn't the active panel
5565//         workspace.read_with(cx, |workspace, cx| {
5566//             let left_dock = workspace.left_dock();
5567//             assert!(left_dock.read(cx).is_open());
5568//             assert_eq!(
5569//                 left_dock.read(cx).visible_panel().unwrap().id(),
5570//                 panel_1.id()
5571//             );
5572//         });
5573
5574//         // Emitting a ZoomIn event shows the panel as zoomed.
5575//         panel_1.update(cx, |_, cx| cx.emit(TestPanelEvent::ZoomIn));
5576//         workspace.read_with(cx, |workspace, _| {
5577//             assert_eq!(workspace.zoomed, Some(panel_1.downgrade().into_any()));
5578//             assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
5579//         });
5580
5581//         // Move panel to another dock while it is zoomed
5582//         panel_1.update(cx, |panel, cx| panel.set_position(DockPosition::Right, cx));
5583//         workspace.read_with(cx, |workspace, _| {
5584//             assert_eq!(workspace.zoomed, Some(panel_1.downgrade().into_any()));
5585//             assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
5586//         });
5587
5588//         // If focus is transferred to another view that's not a panel or another pane, we still show
5589//         // the panel as zoomed.
5590//         let focus_receiver = window.build_view(cx, |_| EmptyView);
5591//         focus_receiver.update(cx, |_, cx| cx.focus_self());
5592//         workspace.read_with(cx, |workspace, _| {
5593//             assert_eq!(workspace.zoomed, Some(panel_1.downgrade().into_any()));
5594//             assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
5595//         });
5596
5597//         // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
5598//         workspace.update(cx, |_, cx| cx.focus_self());
5599//         workspace.read_with(cx, |workspace, _| {
5600//             assert_eq!(workspace.zoomed, None);
5601//             assert_eq!(workspace.zoomed_position, None);
5602//         });
5603
5604//         // If focus is transferred again to another view that's not a panel or a pane, we won't
5605//         // show the panel as zoomed because it wasn't zoomed before.
5606//         focus_receiver.update(cx, |_, cx| cx.focus_self());
5607//         workspace.read_with(cx, |workspace, _| {
5608//             assert_eq!(workspace.zoomed, None);
5609//             assert_eq!(workspace.zoomed_position, None);
5610//         });
5611
5612//         // When focus is transferred back to the panel, it is zoomed again.
5613//         panel_1.update(cx, |_, cx| cx.focus_self());
5614//         workspace.read_with(cx, |workspace, _| {
5615//             assert_eq!(workspace.zoomed, Some(panel_1.downgrade().into_any()));
5616//             assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
5617//         });
5618
5619//         // Emitting a ZoomOut event unzooms the panel.
5620//         panel_1.update(cx, |_, cx| cx.emit(TestPanelEvent::ZoomOut));
5621//         workspace.read_with(cx, |workspace, _| {
5622//             assert_eq!(workspace.zoomed, None);
5623//             assert_eq!(workspace.zoomed_position, None);
5624//         });
5625
5626//         // Emit closed event on panel 1, which is active
5627//         panel_1.update(cx, |_, cx| cx.emit(TestPanelEvent::Closed));
5628
5629//         // Now the left dock is closed, because panel_1 was the active panel
5630//         workspace.read_with(cx, |workspace, cx| {
5631//             let right_dock = workspace.right_dock();
5632//             assert!(!right_dock.read(cx).is_open());
5633//         });
5634//     }
5635
5636//     pub fn init_test(cx: &mut TestAppContext) {
5637//         cx.foreground().forbid_parking();
5638//         cx.update(|cx| {
5639//             cx.set_global(SettingsStore::test(cx));
5640//             theme::init((), cx);
5641//             language::init(cx);
5642//             crate::init_settings(cx);
5643//             Project::init_settings(cx);
5644//         });
5645//     }
5646// }