1pub mod lsp_status;
   2pub mod menu;
   3pub mod pane;
   4pub mod pane_group;
   5pub mod sidebar;
   6mod status_bar;
   7mod toolbar;
   8
   9use anyhow::{anyhow, Context, Result};
  10use client::{
  11    proto, Authenticate, ChannelList, Client, PeerId, Subscription, TypedEnvelope, User, UserStore,
  12};
  13use clock::ReplicaId;
  14use collections::{hash_map, HashMap, HashSet};
  15use gpui::{
  16    action,
  17    color::Color,
  18    elements::*,
  19    geometry::{rect::RectF, vector::vec2f, PathBuilder},
  20    json::{self, to_string_pretty, ToJson},
  21    keymap::Binding,
  22    platform::{CursorStyle, WindowOptions},
  23    AnyModelHandle, AnyViewHandle, AppContext, AsyncAppContext, Border, ClipboardItem, Entity,
  24    ImageData, ModelHandle, MutableAppContext, PathPromptOptions, PromptLevel, RenderContext, Task,
  25    View, ViewContext, ViewHandle, WeakViewHandle,
  26};
  27use language::LanguageRegistry;
  28use log::error;
  29pub use pane::*;
  30pub use pane_group::*;
  31use postage::prelude::Stream;
  32use project::{fs, Fs, Project, ProjectEntryId, ProjectPath, Worktree};
  33use settings::Settings;
  34use sidebar::{Side, Sidebar, SidebarItemId, ToggleSidebarItem, ToggleSidebarItemFocus};
  35use status_bar::StatusBar;
  36pub use status_bar::StatusItemView;
  37use std::{
  38    any::{Any, TypeId},
  39    cell::RefCell,
  40    fmt,
  41    future::Future,
  42    path::{Path, PathBuf},
  43    rc::Rc,
  44    sync::{
  45        atomic::{AtomicBool, Ordering::SeqCst},
  46        Arc,
  47    },
  48};
  49use theme::{Theme, ThemeRegistry};
  50pub use toolbar::{ToolbarItemLocation, ToolbarItemView};
  51use util::ResultExt;
  52
  53type ProjectItemBuilders = HashMap<
  54    TypeId,
  55    fn(usize, ModelHandle<Project>, AnyModelHandle, &mut MutableAppContext) -> Box<dyn ItemHandle>,
  56>;
  57
  58type FollowableItemBuilder = fn(
  59    ViewHandle<Pane>,
  60    ModelHandle<Project>,
  61    &mut Option<proto::view::Variant>,
  62    &mut MutableAppContext,
  63) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>;
  64type FollowableItemBuilders = HashMap<
  65    TypeId,
  66    (
  67        FollowableItemBuilder,
  68        fn(AnyViewHandle) -> Box<dyn FollowableItemHandle>,
  69    ),
  70>;
  71
  72action!(Open, Arc<AppState>);
  73action!(OpenNew, Arc<AppState>);
  74action!(OpenPaths, OpenParams);
  75action!(ToggleShare);
  76action!(ToggleFollow, PeerId);
  77action!(FollowNextCollaborator);
  78action!(Unfollow);
  79action!(JoinProject, JoinProjectParams);
  80action!(Save);
  81action!(DebugElements);
  82action!(ActivatePreviousPane);
  83action!(ActivateNextPane);
  84
  85pub fn init(client: &Arc<Client>, cx: &mut MutableAppContext) {
  86    pane::init(cx);
  87    menu::init(cx);
  88
  89    cx.add_global_action(open);
  90    cx.add_global_action(move |action: &OpenPaths, cx: &mut MutableAppContext| {
  91        open_paths(&action.0.paths, &action.0.app_state, cx).detach();
  92    });
  93    cx.add_global_action(move |action: &OpenNew, cx: &mut MutableAppContext| {
  94        open_new(&action.0, cx)
  95    });
  96    cx.add_global_action(move |action: &JoinProject, cx: &mut MutableAppContext| {
  97        join_project(action.0.project_id, &action.0.app_state, cx).detach();
  98    });
  99
 100    cx.add_action(Workspace::toggle_share);
 101    cx.add_async_action(Workspace::toggle_follow);
 102    cx.add_async_action(Workspace::follow_next_collaborator);
 103    cx.add_action(
 104        |workspace: &mut Workspace, _: &Unfollow, cx: &mut ViewContext<Workspace>| {
 105            let pane = workspace.active_pane().clone();
 106            workspace.unfollow(&pane, cx);
 107        },
 108    );
 109    cx.add_action(
 110        |workspace: &mut Workspace, _: &Save, cx: &mut ViewContext<Workspace>| {
 111            workspace.save_active_item(cx).detach_and_log_err(cx);
 112        },
 113    );
 114    cx.add_action(Workspace::debug_elements);
 115    cx.add_action(Workspace::toggle_sidebar_item);
 116    cx.add_action(Workspace::toggle_sidebar_item_focus);
 117    cx.add_action(|workspace: &mut Workspace, _: &ActivatePreviousPane, cx| {
 118        workspace.activate_previous_pane(cx)
 119    });
 120    cx.add_action(|workspace: &mut Workspace, _: &ActivateNextPane, cx| {
 121        workspace.activate_next_pane(cx)
 122    });
 123    cx.add_bindings(vec![
 124        Binding::new("ctrl-alt-cmd-f", FollowNextCollaborator, None),
 125        Binding::new("cmd-s", Save, None),
 126        Binding::new("cmd-alt-i", DebugElements, None),
 127        Binding::new("cmd-k cmd-left", ActivatePreviousPane, None),
 128        Binding::new("cmd-k cmd-right", ActivateNextPane, None),
 129        Binding::new(
 130            "cmd-shift-!",
 131            ToggleSidebarItem(SidebarItemId {
 132                side: Side::Left,
 133                item_index: 0,
 134            }),
 135            None,
 136        ),
 137        Binding::new(
 138            "cmd-1",
 139            ToggleSidebarItemFocus(SidebarItemId {
 140                side: Side::Left,
 141                item_index: 0,
 142            }),
 143            None,
 144        ),
 145    ]);
 146
 147    client.add_view_request_handler(Workspace::handle_follow);
 148    client.add_view_message_handler(Workspace::handle_unfollow);
 149    client.add_view_message_handler(Workspace::handle_update_followers);
 150}
 151
 152pub fn register_project_item<I: ProjectItem>(cx: &mut MutableAppContext) {
 153    cx.update_default_global(|builders: &mut ProjectItemBuilders, _| {
 154        builders.insert(TypeId::of::<I::Item>(), |window_id, project, model, cx| {
 155            let item = model.downcast::<I::Item>().unwrap();
 156            Box::new(cx.add_view(window_id, |cx| I::for_project_item(project, item, cx)))
 157        });
 158    });
 159}
 160
 161pub fn register_followable_item<I: FollowableItem>(cx: &mut MutableAppContext) {
 162    cx.update_default_global(|builders: &mut FollowableItemBuilders, _| {
 163        builders.insert(
 164            TypeId::of::<I>(),
 165            (
 166                |pane, project, state, cx| {
 167                    I::from_state_proto(pane, project, state, cx).map(|task| {
 168                        cx.foreground()
 169                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
 170                    })
 171                },
 172                |this| Box::new(this.downcast::<I>().unwrap()),
 173            ),
 174        );
 175    });
 176}
 177
 178pub struct AppState {
 179    pub languages: Arc<LanguageRegistry>,
 180    pub themes: Arc<ThemeRegistry>,
 181    pub client: Arc<client::Client>,
 182    pub user_store: ModelHandle<client::UserStore>,
 183    pub fs: Arc<dyn fs::Fs>,
 184    pub channel_list: ModelHandle<client::ChannelList>,
 185    pub build_window_options: &'static dyn Fn() -> WindowOptions<'static>,
 186    pub build_workspace: &'static dyn Fn(
 187        ModelHandle<Project>,
 188        &Arc<AppState>,
 189        &mut ViewContext<Workspace>,
 190    ) -> Workspace,
 191}
 192
 193#[derive(Clone)]
 194pub struct OpenParams {
 195    pub paths: Vec<PathBuf>,
 196    pub app_state: Arc<AppState>,
 197}
 198
 199#[derive(Clone)]
 200pub struct JoinProjectParams {
 201    pub project_id: u64,
 202    pub app_state: Arc<AppState>,
 203}
 204
 205pub trait Item: View {
 206    fn deactivated(&mut self, _: &mut ViewContext<Self>) {}
 207    fn navigate(&mut self, _: Box<dyn Any>, _: &mut ViewContext<Self>) -> bool {
 208        false
 209    }
 210    fn tab_content(&self, style: &theme::Tab, cx: &AppContext) -> ElementBox;
 211    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
 212    fn project_entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
 213    fn set_nav_history(&mut self, _: ItemNavHistory, _: &mut ViewContext<Self>);
 214    fn clone_on_split(&self, _: &mut ViewContext<Self>) -> Option<Self>
 215    where
 216        Self: Sized,
 217    {
 218        None
 219    }
 220    fn is_dirty(&self, _: &AppContext) -> bool {
 221        false
 222    }
 223    fn has_conflict(&self, _: &AppContext) -> bool {
 224        false
 225    }
 226    fn can_save(&self, cx: &AppContext) -> bool;
 227    fn save(
 228        &mut self,
 229        project: ModelHandle<Project>,
 230        cx: &mut ViewContext<Self>,
 231    ) -> Task<Result<()>>;
 232    fn can_save_as(&self, cx: &AppContext) -> bool;
 233    fn save_as(
 234        &mut self,
 235        project: ModelHandle<Project>,
 236        abs_path: PathBuf,
 237        cx: &mut ViewContext<Self>,
 238    ) -> Task<Result<()>>;
 239    fn reload(
 240        &mut self,
 241        project: ModelHandle<Project>,
 242        cx: &mut ViewContext<Self>,
 243    ) -> Task<Result<()>>;
 244    fn should_activate_item_on_event(_: &Self::Event) -> bool {
 245        false
 246    }
 247    fn should_close_item_on_event(_: &Self::Event) -> bool {
 248        false
 249    }
 250    fn should_update_tab_on_event(_: &Self::Event) -> bool {
 251        false
 252    }
 253    fn act_as_type(
 254        &self,
 255        type_id: TypeId,
 256        self_handle: &ViewHandle<Self>,
 257        _: &AppContext,
 258    ) -> Option<AnyViewHandle> {
 259        if TypeId::of::<Self>() == type_id {
 260            Some(self_handle.into())
 261        } else {
 262            None
 263        }
 264    }
 265}
 266
 267pub trait ProjectItem: Item {
 268    type Item: project::Item;
 269
 270    fn for_project_item(
 271        project: ModelHandle<Project>,
 272        item: ModelHandle<Self::Item>,
 273        cx: &mut ViewContext<Self>,
 274    ) -> Self;
 275}
 276
 277pub trait FollowableItem: Item {
 278    fn to_state_proto(&self, cx: &AppContext) -> Option<proto::view::Variant>;
 279    fn from_state_proto(
 280        pane: ViewHandle<Pane>,
 281        project: ModelHandle<Project>,
 282        state: &mut Option<proto::view::Variant>,
 283        cx: &mut MutableAppContext,
 284    ) -> Option<Task<Result<ViewHandle<Self>>>>;
 285    fn add_event_to_update_proto(
 286        &self,
 287        event: &Self::Event,
 288        update: &mut Option<proto::update_view::Variant>,
 289        cx: &AppContext,
 290    ) -> bool;
 291    fn apply_update_proto(
 292        &mut self,
 293        message: proto::update_view::Variant,
 294        cx: &mut ViewContext<Self>,
 295    ) -> Result<()>;
 296
 297    fn set_leader_replica_id(&mut self, leader_replica_id: Option<u16>, cx: &mut ViewContext<Self>);
 298    fn should_unfollow_on_event(event: &Self::Event, cx: &AppContext) -> bool;
 299}
 300
 301pub trait FollowableItemHandle: ItemHandle {
 302    fn set_leader_replica_id(&self, leader_replica_id: Option<u16>, cx: &mut MutableAppContext);
 303    fn to_state_proto(&self, cx: &AppContext) -> Option<proto::view::Variant>;
 304    fn add_event_to_update_proto(
 305        &self,
 306        event: &dyn Any,
 307        update: &mut Option<proto::update_view::Variant>,
 308        cx: &AppContext,
 309    ) -> bool;
 310    fn apply_update_proto(
 311        &self,
 312        message: proto::update_view::Variant,
 313        cx: &mut MutableAppContext,
 314    ) -> Result<()>;
 315    fn should_unfollow_on_event(&self, event: &dyn Any, cx: &AppContext) -> bool;
 316}
 317
 318impl<T: FollowableItem> FollowableItemHandle for ViewHandle<T> {
 319    fn set_leader_replica_id(&self, leader_replica_id: Option<u16>, cx: &mut MutableAppContext) {
 320        self.update(cx, |this, cx| {
 321            this.set_leader_replica_id(leader_replica_id, cx)
 322        })
 323    }
 324
 325    fn to_state_proto(&self, cx: &AppContext) -> Option<proto::view::Variant> {
 326        self.read(cx).to_state_proto(cx)
 327    }
 328
 329    fn add_event_to_update_proto(
 330        &self,
 331        event: &dyn Any,
 332        update: &mut Option<proto::update_view::Variant>,
 333        cx: &AppContext,
 334    ) -> bool {
 335        if let Some(event) = event.downcast_ref() {
 336            self.read(cx).add_event_to_update_proto(event, update, cx)
 337        } else {
 338            false
 339        }
 340    }
 341
 342    fn apply_update_proto(
 343        &self,
 344        message: proto::update_view::Variant,
 345        cx: &mut MutableAppContext,
 346    ) -> Result<()> {
 347        self.update(cx, |this, cx| this.apply_update_proto(message, cx))
 348    }
 349
 350    fn should_unfollow_on_event(&self, event: &dyn Any, cx: &AppContext) -> bool {
 351        if let Some(event) = event.downcast_ref() {
 352            T::should_unfollow_on_event(event, cx)
 353        } else {
 354            false
 355        }
 356    }
 357}
 358
 359pub trait ItemHandle: 'static + fmt::Debug {
 360    fn tab_content(&self, style: &theme::Tab, cx: &AppContext) -> ElementBox;
 361    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
 362    fn project_entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
 363    fn boxed_clone(&self) -> Box<dyn ItemHandle>;
 364    fn set_nav_history(&self, nav_history: Rc<RefCell<NavHistory>>, cx: &mut MutableAppContext);
 365    fn clone_on_split(&self, cx: &mut MutableAppContext) -> Option<Box<dyn ItemHandle>>;
 366    fn added_to_pane(
 367        &self,
 368        workspace: &mut Workspace,
 369        pane: ViewHandle<Pane>,
 370        cx: &mut ViewContext<Workspace>,
 371    );
 372    fn deactivated(&self, cx: &mut MutableAppContext);
 373    fn navigate(&self, data: Box<dyn Any>, cx: &mut MutableAppContext) -> bool;
 374    fn id(&self) -> usize;
 375    fn to_any(&self) -> AnyViewHandle;
 376    fn is_dirty(&self, cx: &AppContext) -> bool;
 377    fn has_conflict(&self, cx: &AppContext) -> bool;
 378    fn can_save(&self, cx: &AppContext) -> bool;
 379    fn can_save_as(&self, cx: &AppContext) -> bool;
 380    fn save(&self, project: ModelHandle<Project>, cx: &mut MutableAppContext) -> Task<Result<()>>;
 381    fn save_as(
 382        &self,
 383        project: ModelHandle<Project>,
 384        abs_path: PathBuf,
 385        cx: &mut MutableAppContext,
 386    ) -> Task<Result<()>>;
 387    fn reload(&self, project: ModelHandle<Project>, cx: &mut MutableAppContext)
 388        -> Task<Result<()>>;
 389    fn act_as_type(&self, type_id: TypeId, cx: &AppContext) -> Option<AnyViewHandle>;
 390    fn to_followable_item_handle(&self, cx: &AppContext) -> Option<Box<dyn FollowableItemHandle>>;
 391}
 392
 393pub trait WeakItemHandle {
 394    fn id(&self) -> usize;
 395    fn upgrade(&self, cx: &AppContext) -> Option<Box<dyn ItemHandle>>;
 396}
 397
 398impl dyn ItemHandle {
 399    pub fn downcast<T: View>(&self) -> Option<ViewHandle<T>> {
 400        self.to_any().downcast()
 401    }
 402
 403    pub fn act_as<T: View>(&self, cx: &AppContext) -> Option<ViewHandle<T>> {
 404        self.act_as_type(TypeId::of::<T>(), cx)
 405            .and_then(|t| t.downcast())
 406    }
 407}
 408
 409impl<T: Item> ItemHandle for ViewHandle<T> {
 410    fn tab_content(&self, style: &theme::Tab, cx: &AppContext) -> ElementBox {
 411        self.read(cx).tab_content(style, cx)
 412    }
 413
 414    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
 415        self.read(cx).project_path(cx)
 416    }
 417
 418    fn project_entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
 419        self.read(cx).project_entry_id(cx)
 420    }
 421
 422    fn boxed_clone(&self) -> Box<dyn ItemHandle> {
 423        Box::new(self.clone())
 424    }
 425
 426    fn clone_on_split(&self, cx: &mut MutableAppContext) -> Option<Box<dyn ItemHandle>> {
 427        self.update(cx, |item, cx| {
 428            cx.add_option_view(|cx| item.clone_on_split(cx))
 429        })
 430        .map(|handle| Box::new(handle) as Box<dyn ItemHandle>)
 431    }
 432
 433    fn set_nav_history(&self, nav_history: Rc<RefCell<NavHistory>>, cx: &mut MutableAppContext) {
 434        self.update(cx, |item, cx| {
 435            item.set_nav_history(ItemNavHistory::new(nav_history, &cx.handle()), cx);
 436        })
 437    }
 438
 439    fn added_to_pane(
 440        &self,
 441        workspace: &mut Workspace,
 442        pane: ViewHandle<Pane>,
 443        cx: &mut ViewContext<Workspace>,
 444    ) {
 445        if let Some(followed_item) = self.to_followable_item_handle(cx) {
 446            if let Some(message) = followed_item.to_state_proto(cx) {
 447                workspace.update_followers(
 448                    proto::update_followers::Variant::CreateView(proto::View {
 449                        id: followed_item.id() as u64,
 450                        variant: Some(message),
 451                        leader_id: workspace.leader_for_pane(&pane).map(|id| id.0),
 452                    }),
 453                    cx,
 454                );
 455            }
 456        }
 457
 458        let pending_update = Rc::new(RefCell::new(None));
 459        let pending_update_scheduled = Rc::new(AtomicBool::new(false));
 460        let pane = pane.downgrade();
 461        cx.subscribe(self, move |workspace, item, event, cx| {
 462            let pane = if let Some(pane) = pane.upgrade(cx) {
 463                pane
 464            } else {
 465                log::error!("unexpected item event after pane was dropped");
 466                return;
 467            };
 468
 469            if let Some(item) = item.to_followable_item_handle(cx) {
 470                let leader_id = workspace.leader_for_pane(&pane);
 471
 472                if leader_id.is_some() && item.should_unfollow_on_event(event, cx) {
 473                    workspace.unfollow(&pane, cx);
 474                }
 475
 476                if item.add_event_to_update_proto(event, &mut *pending_update.borrow_mut(), cx)
 477                    && !pending_update_scheduled.load(SeqCst)
 478                {
 479                    pending_update_scheduled.store(true, SeqCst);
 480                    cx.after_window_update({
 481                        let pending_update = pending_update.clone();
 482                        let pending_update_scheduled = pending_update_scheduled.clone();
 483                        move |this, cx| {
 484                            pending_update_scheduled.store(false, SeqCst);
 485                            this.update_followers(
 486                                proto::update_followers::Variant::UpdateView(proto::UpdateView {
 487                                    id: item.id() as u64,
 488                                    variant: pending_update.borrow_mut().take(),
 489                                    leader_id: leader_id.map(|id| id.0),
 490                                }),
 491                                cx,
 492                            );
 493                        }
 494                    });
 495                }
 496            }
 497
 498            if T::should_close_item_on_event(event) {
 499                Pane::close_item(workspace, pane, item.id(), cx).detach_and_log_err(cx);
 500                return;
 501            }
 502
 503            if T::should_activate_item_on_event(event) {
 504                pane.update(cx, |pane, cx| {
 505                    if let Some(ix) = pane.index_for_item(&item) {
 506                        pane.activate_item(ix, true, cx);
 507                        pane.activate(cx);
 508                    }
 509                });
 510            }
 511
 512            if T::should_update_tab_on_event(event) {
 513                pane.update(cx, |_, cx| cx.notify());
 514            }
 515        })
 516        .detach();
 517    }
 518
 519    fn deactivated(&self, cx: &mut MutableAppContext) {
 520        self.update(cx, |this, cx| this.deactivated(cx));
 521    }
 522
 523    fn navigate(&self, data: Box<dyn Any>, cx: &mut MutableAppContext) -> bool {
 524        self.update(cx, |this, cx| this.navigate(data, cx))
 525    }
 526
 527    fn save(&self, project: ModelHandle<Project>, cx: &mut MutableAppContext) -> Task<Result<()>> {
 528        self.update(cx, |item, cx| item.save(project, cx))
 529    }
 530
 531    fn save_as(
 532        &self,
 533        project: ModelHandle<Project>,
 534        abs_path: PathBuf,
 535        cx: &mut MutableAppContext,
 536    ) -> Task<anyhow::Result<()>> {
 537        self.update(cx, |item, cx| item.save_as(project, abs_path, cx))
 538    }
 539
 540    fn reload(
 541        &self,
 542        project: ModelHandle<Project>,
 543        cx: &mut MutableAppContext,
 544    ) -> Task<Result<()>> {
 545        self.update(cx, |item, cx| item.reload(project, cx))
 546    }
 547
 548    fn is_dirty(&self, cx: &AppContext) -> bool {
 549        self.read(cx).is_dirty(cx)
 550    }
 551
 552    fn has_conflict(&self, cx: &AppContext) -> bool {
 553        self.read(cx).has_conflict(cx)
 554    }
 555
 556    fn id(&self) -> usize {
 557        self.id()
 558    }
 559
 560    fn to_any(&self) -> AnyViewHandle {
 561        self.into()
 562    }
 563
 564    fn can_save(&self, cx: &AppContext) -> bool {
 565        self.read(cx).can_save(cx)
 566    }
 567
 568    fn can_save_as(&self, cx: &AppContext) -> bool {
 569        self.read(cx).can_save_as(cx)
 570    }
 571
 572    fn act_as_type(&self, type_id: TypeId, cx: &AppContext) -> Option<AnyViewHandle> {
 573        self.read(cx).act_as_type(type_id, self, cx)
 574    }
 575
 576    fn to_followable_item_handle(&self, cx: &AppContext) -> Option<Box<dyn FollowableItemHandle>> {
 577        if cx.has_global::<FollowableItemBuilders>() {
 578            let builders = cx.global::<FollowableItemBuilders>();
 579            let item = self.to_any();
 580            Some(builders.get(&item.view_type())?.1(item))
 581        } else {
 582            None
 583        }
 584    }
 585}
 586
 587impl Into<AnyViewHandle> for Box<dyn ItemHandle> {
 588    fn into(self) -> AnyViewHandle {
 589        self.to_any()
 590    }
 591}
 592
 593impl Clone for Box<dyn ItemHandle> {
 594    fn clone(&self) -> Box<dyn ItemHandle> {
 595        self.boxed_clone()
 596    }
 597}
 598
 599impl<T: Item> WeakItemHandle for WeakViewHandle<T> {
 600    fn id(&self) -> usize {
 601        self.id()
 602    }
 603
 604    fn upgrade(&self, cx: &AppContext) -> Option<Box<dyn ItemHandle>> {
 605        self.upgrade(cx).map(|v| Box::new(v) as Box<dyn ItemHandle>)
 606    }
 607}
 608
 609#[derive(Clone)]
 610pub struct WorkspaceParams {
 611    pub project: ModelHandle<Project>,
 612    pub client: Arc<Client>,
 613    pub fs: Arc<dyn Fs>,
 614    pub languages: Arc<LanguageRegistry>,
 615    pub user_store: ModelHandle<UserStore>,
 616    pub channel_list: ModelHandle<ChannelList>,
 617}
 618
 619impl WorkspaceParams {
 620    #[cfg(any(test, feature = "test-support"))]
 621    pub fn test(cx: &mut MutableAppContext) -> Self {
 622        let settings = Settings::test(cx);
 623        cx.set_global(settings);
 624
 625        let fs = project::FakeFs::new(cx.background().clone());
 626        let languages = Arc::new(LanguageRegistry::test());
 627        let http_client = client::test::FakeHttpClient::new(|_| async move {
 628            Ok(client::http::ServerResponse::new(404))
 629        });
 630        let client = Client::new(http_client.clone());
 631        let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
 632        let project = Project::local(
 633            client.clone(),
 634            user_store.clone(),
 635            languages.clone(),
 636            fs.clone(),
 637            cx,
 638        );
 639        Self {
 640            project,
 641            channel_list: cx
 642                .add_model(|cx| ChannelList::new(user_store.clone(), client.clone(), cx)),
 643            client,
 644            fs,
 645            languages,
 646            user_store,
 647        }
 648    }
 649
 650    #[cfg(any(test, feature = "test-support"))]
 651    pub fn local(app_state: &Arc<AppState>, cx: &mut MutableAppContext) -> Self {
 652        Self {
 653            project: Project::local(
 654                app_state.client.clone(),
 655                app_state.user_store.clone(),
 656                app_state.languages.clone(),
 657                app_state.fs.clone(),
 658                cx,
 659            ),
 660            client: app_state.client.clone(),
 661            fs: app_state.fs.clone(),
 662            languages: app_state.languages.clone(),
 663            user_store: app_state.user_store.clone(),
 664            channel_list: app_state.channel_list.clone(),
 665        }
 666    }
 667}
 668
 669pub enum Event {
 670    PaneAdded(ViewHandle<Pane>),
 671}
 672
 673pub struct Workspace {
 674    weak_self: WeakViewHandle<Self>,
 675    client: Arc<Client>,
 676    user_store: ModelHandle<client::UserStore>,
 677    remote_entity_subscription: Option<Subscription>,
 678    fs: Arc<dyn Fs>,
 679    modal: Option<AnyViewHandle>,
 680    center: PaneGroup,
 681    left_sidebar: Sidebar,
 682    right_sidebar: Sidebar,
 683    panes: Vec<ViewHandle<Pane>>,
 684    active_pane: ViewHandle<Pane>,
 685    status_bar: ViewHandle<StatusBar>,
 686    project: ModelHandle<Project>,
 687    leader_state: LeaderState,
 688    follower_states_by_leader: FollowerStatesByLeader,
 689    last_leaders_by_pane: HashMap<WeakViewHandle<Pane>, PeerId>,
 690    _observe_current_user: Task<()>,
 691}
 692
 693#[derive(Default)]
 694struct LeaderState {
 695    followers: HashSet<PeerId>,
 696}
 697
 698type FollowerStatesByLeader = HashMap<PeerId, HashMap<ViewHandle<Pane>, FollowerState>>;
 699
 700#[derive(Default)]
 701struct FollowerState {
 702    active_view_id: Option<u64>,
 703    items_by_leader_view_id: HashMap<u64, FollowerItem>,
 704}
 705
 706#[derive(Debug)]
 707enum FollowerItem {
 708    Loading(Vec<proto::update_view::Variant>),
 709    Loaded(Box<dyn FollowableItemHandle>),
 710}
 711
 712impl Workspace {
 713    pub fn new(params: &WorkspaceParams, cx: &mut ViewContext<Self>) -> Self {
 714        cx.observe(&params.project, |_, project, cx| {
 715            if project.read(cx).is_read_only() {
 716                cx.blur();
 717            }
 718            cx.notify()
 719        })
 720        .detach();
 721
 722        cx.subscribe(&params.project, move |this, project, event, cx| {
 723            match event {
 724                project::Event::RemoteIdChanged(remote_id) => {
 725                    this.project_remote_id_changed(*remote_id, cx);
 726                }
 727                project::Event::CollaboratorLeft(peer_id) => {
 728                    this.collaborator_left(*peer_id, cx);
 729                }
 730                _ => {}
 731            }
 732            if project.read(cx).is_read_only() {
 733                cx.blur();
 734            }
 735            cx.notify()
 736        })
 737        .detach();
 738
 739        let pane = cx.add_view(|cx| Pane::new(cx));
 740        let pane_id = pane.id();
 741        cx.observe(&pane, move |me, _, cx| {
 742            let active_entry = me.active_project_path(cx);
 743            me.project
 744                .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 745        })
 746        .detach();
 747        cx.subscribe(&pane, move |me, _, event, cx| {
 748            me.handle_pane_event(pane_id, event, cx)
 749        })
 750        .detach();
 751        cx.focus(&pane);
 752        cx.emit(Event::PaneAdded(pane.clone()));
 753
 754        let status_bar = cx.add_view(|cx| StatusBar::new(&pane, cx));
 755        let mut current_user = params.user_store.read(cx).watch_current_user().clone();
 756        let mut connection_status = params.client.status().clone();
 757        let _observe_current_user = cx.spawn_weak(|this, mut cx| async move {
 758            current_user.recv().await;
 759            connection_status.recv().await;
 760            let mut stream =
 761                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 762
 763            while stream.recv().await.is_some() {
 764                cx.update(|cx| {
 765                    if let Some(this) = this.upgrade(cx) {
 766                        this.update(cx, |_, cx| cx.notify());
 767                    }
 768                })
 769            }
 770        });
 771
 772        let weak_self = cx.weak_handle();
 773
 774        cx.emit_global(WorkspaceCreated(weak_self.clone()));
 775
 776        let mut this = Workspace {
 777            modal: None,
 778            weak_self,
 779            center: PaneGroup::new(pane.clone()),
 780            panes: vec![pane.clone()],
 781            active_pane: pane.clone(),
 782            status_bar,
 783            client: params.client.clone(),
 784            remote_entity_subscription: None,
 785            user_store: params.user_store.clone(),
 786            fs: params.fs.clone(),
 787            left_sidebar: Sidebar::new(Side::Left),
 788            right_sidebar: Sidebar::new(Side::Right),
 789            project: params.project.clone(),
 790            leader_state: Default::default(),
 791            follower_states_by_leader: Default::default(),
 792            last_leaders_by_pane: Default::default(),
 793            _observe_current_user,
 794        };
 795        this.project_remote_id_changed(this.project.read(cx).remote_id(), cx);
 796        this
 797    }
 798
 799    pub fn weak_handle(&self) -> WeakViewHandle<Self> {
 800        self.weak_self.clone()
 801    }
 802
 803    pub fn left_sidebar_mut(&mut self) -> &mut Sidebar {
 804        &mut self.left_sidebar
 805    }
 806
 807    pub fn right_sidebar_mut(&mut self) -> &mut Sidebar {
 808        &mut self.right_sidebar
 809    }
 810
 811    pub fn status_bar(&self) -> &ViewHandle<StatusBar> {
 812        &self.status_bar
 813    }
 814
 815    pub fn project(&self) -> &ModelHandle<Project> {
 816        &self.project
 817    }
 818
 819    pub fn worktrees<'a>(
 820        &self,
 821        cx: &'a AppContext,
 822    ) -> impl 'a + Iterator<Item = ModelHandle<Worktree>> {
 823        self.project.read(cx).worktrees(cx)
 824    }
 825
 826    pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
 827        paths.iter().all(|path| self.contains_path(&path, cx))
 828    }
 829
 830    pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
 831        for worktree in self.worktrees(cx) {
 832            let worktree = worktree.read(cx).as_local();
 833            if worktree.map_or(false, |w| w.contains_abs_path(path)) {
 834                return true;
 835            }
 836        }
 837        false
 838    }
 839
 840    pub fn worktree_scans_complete(&self, cx: &AppContext) -> impl Future<Output = ()> + 'static {
 841        let futures = self
 842            .worktrees(cx)
 843            .filter_map(|worktree| worktree.read(cx).as_local())
 844            .map(|worktree| worktree.scan_complete())
 845            .collect::<Vec<_>>();
 846        async move {
 847            for future in futures {
 848                future.await;
 849            }
 850        }
 851    }
 852
 853    pub fn open_paths(
 854        &mut self,
 855        abs_paths: &[PathBuf],
 856        cx: &mut ViewContext<Self>,
 857    ) -> Task<Vec<Option<Result<Box<dyn ItemHandle>, Arc<anyhow::Error>>>>> {
 858        let entries = abs_paths
 859            .iter()
 860            .cloned()
 861            .map(|path| self.project_path_for_path(&path, cx))
 862            .collect::<Vec<_>>();
 863
 864        let fs = self.fs.clone();
 865        let tasks = abs_paths
 866            .iter()
 867            .cloned()
 868            .zip(entries.into_iter())
 869            .map(|(abs_path, project_path)| {
 870                cx.spawn(|this, mut cx| {
 871                    let fs = fs.clone();
 872                    async move {
 873                        let project_path = project_path.await.ok()?;
 874                        if fs.is_file(&abs_path).await {
 875                            Some(
 876                                this.update(&mut cx, |this, cx| this.open_path(project_path, cx))
 877                                    .await,
 878                            )
 879                        } else {
 880                            None
 881                        }
 882                    }
 883                })
 884            })
 885            .collect::<Vec<_>>();
 886
 887        cx.foreground().spawn(async move {
 888            let mut items = Vec::new();
 889            for task in tasks {
 890                items.push(task.await);
 891            }
 892            items
 893        })
 894    }
 895
 896    fn project_path_for_path(
 897        &self,
 898        abs_path: &Path,
 899        cx: &mut ViewContext<Self>,
 900    ) -> Task<Result<ProjectPath>> {
 901        let entry = self.project().update(cx, |project, cx| {
 902            project.find_or_create_local_worktree(abs_path, true, cx)
 903        });
 904        cx.spawn(|_, cx| async move {
 905            let (worktree, path) = entry.await?;
 906            Ok(ProjectPath {
 907                worktree_id: worktree.read_with(&cx, |t, _| t.id()),
 908                path: path.into(),
 909            })
 910        })
 911    }
 912
 913    // Returns the model that was toggled closed if it was open
 914    pub fn toggle_modal<V, F>(
 915        &mut self,
 916        cx: &mut ViewContext<Self>,
 917        add_view: F,
 918    ) -> Option<ViewHandle<V>>
 919    where
 920        V: 'static + View,
 921        F: FnOnce(&mut ViewContext<Self>, &mut Self) -> ViewHandle<V>,
 922    {
 923        cx.notify();
 924        // Whatever modal was visible is getting clobbered. If its the same type as V, then return
 925        // it. Otherwise, create a new modal and set it as active.
 926        let already_open_modal = self.modal.take().and_then(|modal| modal.downcast::<V>());
 927        if let Some(already_open_modal) = already_open_modal {
 928            cx.focus_self();
 929            Some(already_open_modal)
 930        } else {
 931            let modal = add_view(cx, self);
 932            cx.focus(&modal);
 933            self.modal = Some(modal.into());
 934            None
 935        }
 936    }
 937
 938    pub fn modal(&self) -> Option<&AnyViewHandle> {
 939        self.modal.as_ref()
 940    }
 941
 942    pub fn dismiss_modal(&mut self, cx: &mut ViewContext<Self>) {
 943        if self.modal.take().is_some() {
 944            cx.focus(&self.active_pane);
 945            cx.notify();
 946        }
 947    }
 948
 949    pub fn items<'a>(
 950        &'a self,
 951        cx: &'a AppContext,
 952    ) -> impl 'a + Iterator<Item = &Box<dyn ItemHandle>> {
 953        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 954    }
 955
 956    pub fn item_of_type<T: Item>(&self, cx: &AppContext) -> Option<ViewHandle<T>> {
 957        self.items_of_type(cx).max_by_key(|item| item.id())
 958    }
 959
 960    pub fn items_of_type<'a, T: Item>(
 961        &'a self,
 962        cx: &'a AppContext,
 963    ) -> impl 'a + Iterator<Item = ViewHandle<T>> {
 964        self.panes
 965            .iter()
 966            .flat_map(|pane| pane.read(cx).items_of_type())
 967    }
 968
 969    pub fn active_item(&self, cx: &AppContext) -> Option<Box<dyn ItemHandle>> {
 970        self.active_pane().read(cx).active_item()
 971    }
 972
 973    fn active_project_path(&self, cx: &ViewContext<Self>) -> Option<ProjectPath> {
 974        self.active_item(cx).and_then(|item| item.project_path(cx))
 975    }
 976
 977    pub fn save_active_item(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
 978        let project = self.project.clone();
 979        if let Some(item) = self.active_item(cx) {
 980            if item.can_save(cx) {
 981                if item.has_conflict(cx.as_ref()) {
 982                    const CONFLICT_MESSAGE: &'static str = "This file has changed on disk since you started editing it. Do you want to overwrite it?";
 983
 984                    let mut answer = cx.prompt(
 985                        PromptLevel::Warning,
 986                        CONFLICT_MESSAGE,
 987                        &["Overwrite", "Cancel"],
 988                    );
 989                    cx.spawn(|_, mut cx| async move {
 990                        let answer = answer.recv().await;
 991                        if answer == Some(0) {
 992                            cx.update(|cx| item.save(project, cx)).await?;
 993                        }
 994                        Ok(())
 995                    })
 996                } else {
 997                    item.save(project, cx)
 998                }
 999            } else if item.can_save_as(cx) {
1000                let worktree = self.worktrees(cx).next();
1001                let start_abs_path = worktree
1002                    .and_then(|w| w.read(cx).as_local())
1003                    .map_or(Path::new(""), |w| w.abs_path())
1004                    .to_path_buf();
1005                let mut abs_path = cx.prompt_for_new_path(&start_abs_path);
1006                cx.spawn(|_, mut cx| async move {
1007                    if let Some(abs_path) = abs_path.recv().await.flatten() {
1008                        cx.update(|cx| item.save_as(project, abs_path, cx)).await?;
1009                    }
1010                    Ok(())
1011                })
1012            } else {
1013                Task::ready(Ok(()))
1014            }
1015        } else {
1016            Task::ready(Ok(()))
1017        }
1018    }
1019
1020    pub fn toggle_sidebar_item(&mut self, action: &ToggleSidebarItem, cx: &mut ViewContext<Self>) {
1021        let sidebar = match action.0.side {
1022            Side::Left => &mut self.left_sidebar,
1023            Side::Right => &mut self.right_sidebar,
1024        };
1025        sidebar.toggle_item(action.0.item_index);
1026        if let Some(active_item) = sidebar.active_item() {
1027            cx.focus(active_item);
1028        } else {
1029            cx.focus_self();
1030        }
1031        cx.notify();
1032    }
1033
1034    pub fn toggle_sidebar_item_focus(
1035        &mut self,
1036        action: &ToggleSidebarItemFocus,
1037        cx: &mut ViewContext<Self>,
1038    ) {
1039        let sidebar = match action.0.side {
1040            Side::Left => &mut self.left_sidebar,
1041            Side::Right => &mut self.right_sidebar,
1042        };
1043        sidebar.activate_item(action.0.item_index);
1044        if let Some(active_item) = sidebar.active_item() {
1045            if active_item.is_focused(cx) {
1046                cx.focus_self();
1047            } else {
1048                cx.focus(active_item);
1049            }
1050        }
1051        cx.notify();
1052    }
1053
1054    pub fn debug_elements(&mut self, _: &DebugElements, cx: &mut ViewContext<Self>) {
1055        match to_string_pretty(&cx.debug_elements()) {
1056            Ok(json) => {
1057                let kib = json.len() as f32 / 1024.;
1058                cx.as_mut().write_to_clipboard(ClipboardItem::new(json));
1059                log::info!(
1060                    "copied {:.1} KiB of element debug JSON to the clipboard",
1061                    kib
1062                );
1063            }
1064            Err(error) => {
1065                log::error!("error debugging elements: {}", error);
1066            }
1067        };
1068    }
1069
1070    fn add_pane(&mut self, cx: &mut ViewContext<Self>) -> ViewHandle<Pane> {
1071        let pane = cx.add_view(|cx| Pane::new(cx));
1072        let pane_id = pane.id();
1073        cx.observe(&pane, move |me, _, cx| {
1074            let active_entry = me.active_project_path(cx);
1075            me.project
1076                .update(cx, |project, cx| project.set_active_path(active_entry, cx));
1077        })
1078        .detach();
1079        cx.subscribe(&pane, move |me, _, event, cx| {
1080            me.handle_pane_event(pane_id, event, cx)
1081        })
1082        .detach();
1083        self.panes.push(pane.clone());
1084        self.activate_pane(pane.clone(), cx);
1085        cx.emit(Event::PaneAdded(pane.clone()));
1086        pane
1087    }
1088
1089    pub fn add_item(&mut self, item: Box<dyn ItemHandle>, cx: &mut ViewContext<Self>) {
1090        let pane = self.active_pane().clone();
1091        Pane::add_item(self, pane, item, true, cx);
1092    }
1093
1094    pub fn open_path(
1095        &mut self,
1096        path: impl Into<ProjectPath>,
1097        cx: &mut ViewContext<Self>,
1098    ) -> Task<Result<Box<dyn ItemHandle>, Arc<anyhow::Error>>> {
1099        let pane = self.active_pane().downgrade();
1100        let task = self.load_path(path.into(), cx);
1101        cx.spawn(|this, mut cx| async move {
1102            let (project_entry_id, build_item) = task.await?;
1103            let pane = pane
1104                .upgrade(&cx)
1105                .ok_or_else(|| anyhow!("pane was closed"))?;
1106            this.update(&mut cx, |this, cx| {
1107                Ok(Pane::open_item(
1108                    this,
1109                    pane,
1110                    project_entry_id,
1111                    cx,
1112                    build_item,
1113                ))
1114            })
1115        })
1116    }
1117
1118    pub(crate) fn load_path(
1119        &mut self,
1120        path: ProjectPath,
1121        cx: &mut ViewContext<Self>,
1122    ) -> Task<
1123        Result<(
1124            ProjectEntryId,
1125            impl 'static + FnOnce(&mut MutableAppContext) -> Box<dyn ItemHandle>,
1126        )>,
1127    > {
1128        let project = self.project().clone();
1129        let project_item = project.update(cx, |project, cx| project.open_path(path, cx));
1130        let window_id = cx.window_id();
1131        cx.as_mut().spawn(|mut cx| async move {
1132            let (project_entry_id, project_item) = project_item.await?;
1133            let build_item = cx.update(|cx| {
1134                cx.default_global::<ProjectItemBuilders>()
1135                    .get(&project_item.model_type())
1136                    .ok_or_else(|| anyhow!("no item builder for project item"))
1137                    .cloned()
1138            })?;
1139            let build_item =
1140                move |cx: &mut MutableAppContext| build_item(window_id, project, project_item, cx);
1141            Ok((project_entry_id, build_item))
1142        })
1143    }
1144
1145    pub fn open_project_item<T>(
1146        &mut self,
1147        project_item: ModelHandle<T::Item>,
1148        cx: &mut ViewContext<Self>,
1149    ) -> ViewHandle<T>
1150    where
1151        T: ProjectItem,
1152    {
1153        use project::Item as _;
1154
1155        let entry_id = project_item.read(cx).entry_id(cx);
1156        if let Some(item) = entry_id
1157            .and_then(|entry_id| self.active_pane().read(cx).item_for_entry(entry_id, cx))
1158            .and_then(|item| item.downcast())
1159        {
1160            self.activate_item(&item, cx);
1161            return item;
1162        }
1163
1164        let item = cx.add_view(|cx| T::for_project_item(self.project().clone(), project_item, cx));
1165        self.add_item(Box::new(item.clone()), cx);
1166        item
1167    }
1168
1169    pub fn activate_item(&mut self, item: &dyn ItemHandle, cx: &mut ViewContext<Self>) -> bool {
1170        let result = self.panes.iter().find_map(|pane| {
1171            if let Some(ix) = pane.read(cx).index_for_item(item) {
1172                Some((pane.clone(), ix))
1173            } else {
1174                None
1175            }
1176        });
1177        if let Some((pane, ix)) = result {
1178            self.activate_pane(pane.clone(), cx);
1179            pane.update(cx, |pane, cx| pane.activate_item(ix, true, cx));
1180            true
1181        } else {
1182            false
1183        }
1184    }
1185
1186    pub fn activate_next_pane(&mut self, cx: &mut ViewContext<Self>) {
1187        let next_pane = {
1188            let panes = self.center.panes();
1189            let ix = panes
1190                .iter()
1191                .position(|pane| **pane == self.active_pane)
1192                .unwrap();
1193            let next_ix = (ix + 1) % panes.len();
1194            panes[next_ix].clone()
1195        };
1196        self.activate_pane(next_pane, cx);
1197    }
1198
1199    pub fn activate_previous_pane(&mut self, cx: &mut ViewContext<Self>) {
1200        let prev_pane = {
1201            let panes = self.center.panes();
1202            let ix = panes
1203                .iter()
1204                .position(|pane| **pane == self.active_pane)
1205                .unwrap();
1206            let prev_ix = if ix == 0 { panes.len() - 1 } else { ix - 1 };
1207            panes[prev_ix].clone()
1208        };
1209        self.activate_pane(prev_pane, cx);
1210    }
1211
1212    fn activate_pane(&mut self, pane: ViewHandle<Pane>, cx: &mut ViewContext<Self>) {
1213        if self.active_pane != pane {
1214            self.active_pane = pane.clone();
1215            self.status_bar.update(cx, |status_bar, cx| {
1216                status_bar.set_active_pane(&self.active_pane, cx);
1217            });
1218            cx.focus(&self.active_pane);
1219            cx.notify();
1220        }
1221
1222        self.update_followers(
1223            proto::update_followers::Variant::UpdateActiveView(proto::UpdateActiveView {
1224                id: self.active_item(cx).map(|item| item.id() as u64),
1225                leader_id: self.leader_for_pane(&pane).map(|id| id.0),
1226            }),
1227            cx,
1228        );
1229    }
1230
1231    fn handle_pane_event(
1232        &mut self,
1233        pane_id: usize,
1234        event: &pane::Event,
1235        cx: &mut ViewContext<Self>,
1236    ) {
1237        if let Some(pane) = self.pane(pane_id) {
1238            match event {
1239                pane::Event::Split(direction) => {
1240                    self.split_pane(pane, *direction, cx);
1241                }
1242                pane::Event::Remove => {
1243                    self.remove_pane(pane, cx);
1244                }
1245                pane::Event::Activate => {
1246                    self.activate_pane(pane, cx);
1247                }
1248                pane::Event::ActivateItem { local } => {
1249                    if *local {
1250                        self.unfollow(&pane, cx);
1251                    }
1252                }
1253            }
1254        } else {
1255            error!("pane {} not found", pane_id);
1256        }
1257    }
1258
1259    pub fn split_pane(
1260        &mut self,
1261        pane: ViewHandle<Pane>,
1262        direction: SplitDirection,
1263        cx: &mut ViewContext<Self>,
1264    ) -> ViewHandle<Pane> {
1265        let new_pane = self.add_pane(cx);
1266        self.activate_pane(new_pane.clone(), cx);
1267        if let Some(item) = pane.read(cx).active_item() {
1268            if let Some(clone) = item.clone_on_split(cx.as_mut()) {
1269                Pane::add_item(self, new_pane.clone(), clone, true, cx);
1270            }
1271        }
1272        self.center.split(&pane, &new_pane, direction).unwrap();
1273        cx.notify();
1274        new_pane
1275    }
1276
1277    fn remove_pane(&mut self, pane: ViewHandle<Pane>, cx: &mut ViewContext<Self>) {
1278        if self.center.remove(&pane).unwrap() {
1279            self.panes.retain(|p| p != &pane);
1280            self.activate_pane(self.panes.last().unwrap().clone(), cx);
1281            self.unfollow(&pane, cx);
1282            self.last_leaders_by_pane.remove(&pane.downgrade());
1283            cx.notify();
1284        }
1285    }
1286
1287    pub fn panes(&self) -> &[ViewHandle<Pane>] {
1288        &self.panes
1289    }
1290
1291    fn pane(&self, pane_id: usize) -> Option<ViewHandle<Pane>> {
1292        self.panes.iter().find(|pane| pane.id() == pane_id).cloned()
1293    }
1294
1295    pub fn active_pane(&self) -> &ViewHandle<Pane> {
1296        &self.active_pane
1297    }
1298
1299    fn toggle_share(&mut self, _: &ToggleShare, cx: &mut ViewContext<Self>) {
1300        self.project.update(cx, |project, cx| {
1301            if project.is_local() {
1302                if project.is_shared() {
1303                    project.unshare(cx);
1304                } else {
1305                    project.share(cx).detach();
1306                }
1307            }
1308        });
1309    }
1310
1311    fn project_remote_id_changed(&mut self, remote_id: Option<u64>, cx: &mut ViewContext<Self>) {
1312        if let Some(remote_id) = remote_id {
1313            self.remote_entity_subscription =
1314                Some(self.client.add_view_for_remote_entity(remote_id, cx));
1315        } else {
1316            self.remote_entity_subscription.take();
1317        }
1318    }
1319
1320    fn collaborator_left(&mut self, peer_id: PeerId, cx: &mut ViewContext<Self>) {
1321        self.leader_state.followers.remove(&peer_id);
1322        if let Some(states_by_pane) = self.follower_states_by_leader.remove(&peer_id) {
1323            for state in states_by_pane.into_values() {
1324                for item in state.items_by_leader_view_id.into_values() {
1325                    if let FollowerItem::Loaded(item) = item {
1326                        item.set_leader_replica_id(None, cx);
1327                    }
1328                }
1329            }
1330        }
1331        cx.notify();
1332    }
1333
1334    pub fn toggle_follow(
1335        &mut self,
1336        ToggleFollow(leader_id): &ToggleFollow,
1337        cx: &mut ViewContext<Self>,
1338    ) -> Option<Task<Result<()>>> {
1339        let leader_id = *leader_id;
1340        let pane = self.active_pane().clone();
1341
1342        if let Some(prev_leader_id) = self.unfollow(&pane, cx) {
1343            if leader_id == prev_leader_id {
1344                return None;
1345            }
1346        }
1347
1348        self.last_leaders_by_pane
1349            .insert(pane.downgrade(), leader_id);
1350        self.follower_states_by_leader
1351            .entry(leader_id)
1352            .or_default()
1353            .insert(pane.clone(), Default::default());
1354        cx.notify();
1355
1356        let project_id = self.project.read(cx).remote_id()?;
1357        let request = self.client.request(proto::Follow {
1358            project_id,
1359            leader_id: leader_id.0,
1360        });
1361        Some(cx.spawn_weak(|this, mut cx| async move {
1362            let response = request.await?;
1363            if let Some(this) = this.upgrade(&cx) {
1364                this.update(&mut cx, |this, _| {
1365                    let state = this
1366                        .follower_states_by_leader
1367                        .get_mut(&leader_id)
1368                        .and_then(|states_by_pane| states_by_pane.get_mut(&pane))
1369                        .ok_or_else(|| anyhow!("following interrupted"))?;
1370                    state.active_view_id = response.active_view_id;
1371                    Ok::<_, anyhow::Error>(())
1372                })?;
1373                Self::add_views_from_leader(this, leader_id, vec![pane], response.views, &mut cx)
1374                    .await?;
1375            }
1376            Ok(())
1377        }))
1378    }
1379
1380    pub fn follow_next_collaborator(
1381        &mut self,
1382        _: &FollowNextCollaborator,
1383        cx: &mut ViewContext<Self>,
1384    ) -> Option<Task<Result<()>>> {
1385        let collaborators = self.project.read(cx).collaborators();
1386        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
1387            let mut collaborators = collaborators.keys().copied();
1388            while let Some(peer_id) = collaborators.next() {
1389                if peer_id == leader_id {
1390                    break;
1391                }
1392            }
1393            collaborators.next()
1394        } else if let Some(last_leader_id) =
1395            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
1396        {
1397            if collaborators.contains_key(last_leader_id) {
1398                Some(*last_leader_id)
1399            } else {
1400                None
1401            }
1402        } else {
1403            None
1404        };
1405
1406        next_leader_id
1407            .or_else(|| collaborators.keys().copied().next())
1408            .and_then(|leader_id| self.toggle_follow(&ToggleFollow(leader_id), cx))
1409    }
1410
1411    pub fn unfollow(
1412        &mut self,
1413        pane: &ViewHandle<Pane>,
1414        cx: &mut ViewContext<Self>,
1415    ) -> Option<PeerId> {
1416        for (leader_id, states_by_pane) in &mut self.follower_states_by_leader {
1417            let leader_id = *leader_id;
1418            if let Some(state) = states_by_pane.remove(&pane) {
1419                for (_, item) in state.items_by_leader_view_id {
1420                    if let FollowerItem::Loaded(item) = item {
1421                        item.set_leader_replica_id(None, cx);
1422                    }
1423                }
1424
1425                if states_by_pane.is_empty() {
1426                    self.follower_states_by_leader.remove(&leader_id);
1427                    if let Some(project_id) = self.project.read(cx).remote_id() {
1428                        self.client
1429                            .send(proto::Unfollow {
1430                                project_id,
1431                                leader_id: leader_id.0,
1432                            })
1433                            .log_err();
1434                    }
1435                }
1436
1437                cx.notify();
1438                return Some(leader_id);
1439            }
1440        }
1441        None
1442    }
1443
1444    fn render_connection_status(&self, cx: &mut RenderContext<Self>) -> Option<ElementBox> {
1445        let theme = &cx.global::<Settings>().theme;
1446        match &*self.client.status().borrow() {
1447            client::Status::ConnectionError
1448            | client::Status::ConnectionLost
1449            | client::Status::Reauthenticating
1450            | client::Status::Reconnecting { .. }
1451            | client::Status::ReconnectionError { .. } => Some(
1452                Container::new(
1453                    Align::new(
1454                        ConstrainedBox::new(
1455                            Svg::new("icons/offline-14.svg")
1456                                .with_color(theme.workspace.titlebar.offline_icon.color)
1457                                .boxed(),
1458                        )
1459                        .with_width(theme.workspace.titlebar.offline_icon.width)
1460                        .boxed(),
1461                    )
1462                    .boxed(),
1463                )
1464                .with_style(theme.workspace.titlebar.offline_icon.container)
1465                .boxed(),
1466            ),
1467            client::Status::UpgradeRequired => Some(
1468                Label::new(
1469                    "Please update Zed to collaborate".to_string(),
1470                    theme.workspace.titlebar.outdated_warning.text.clone(),
1471                )
1472                .contained()
1473                .with_style(theme.workspace.titlebar.outdated_warning.container)
1474                .aligned()
1475                .boxed(),
1476            ),
1477            _ => None,
1478        }
1479    }
1480
1481    fn render_titlebar(&self, theme: &Theme, cx: &mut RenderContext<Self>) -> ElementBox {
1482        ConstrainedBox::new(
1483            Container::new(
1484                Stack::new()
1485                    .with_child(
1486                        Align::new(
1487                            Label::new("zed".into(), theme.workspace.titlebar.title.clone())
1488                                .boxed(),
1489                        )
1490                        .boxed(),
1491                    )
1492                    .with_child(
1493                        Align::new(
1494                            Flex::row()
1495                                .with_children(self.render_share_icon(theme, cx))
1496                                .with_children(self.render_collaborators(theme, cx))
1497                                .with_child(self.render_current_user(
1498                                    self.user_store.read(cx).current_user().as_ref(),
1499                                    self.project.read(cx).replica_id(),
1500                                    theme,
1501                                    cx,
1502                                ))
1503                                .with_children(self.render_connection_status(cx))
1504                                .boxed(),
1505                        )
1506                        .right()
1507                        .boxed(),
1508                    )
1509                    .boxed(),
1510            )
1511            .with_style(theme.workspace.titlebar.container)
1512            .boxed(),
1513        )
1514        .with_height(theme.workspace.titlebar.height)
1515        .named("titlebar")
1516    }
1517
1518    fn render_collaborators(&self, theme: &Theme, cx: &mut RenderContext<Self>) -> Vec<ElementBox> {
1519        let mut collaborators = self
1520            .project
1521            .read(cx)
1522            .collaborators()
1523            .values()
1524            .cloned()
1525            .collect::<Vec<_>>();
1526        collaborators.sort_unstable_by_key(|collaborator| collaborator.replica_id);
1527        collaborators
1528            .into_iter()
1529            .filter_map(|collaborator| {
1530                Some(self.render_avatar(
1531                    collaborator.user.avatar.clone()?,
1532                    collaborator.replica_id,
1533                    Some(collaborator.peer_id),
1534                    theme,
1535                    cx,
1536                ))
1537            })
1538            .collect()
1539    }
1540
1541    fn render_current_user(
1542        &self,
1543        user: Option<&Arc<User>>,
1544        replica_id: ReplicaId,
1545        theme: &Theme,
1546        cx: &mut RenderContext<Self>,
1547    ) -> ElementBox {
1548        if let Some(avatar) = user.and_then(|user| user.avatar.clone()) {
1549            self.render_avatar(avatar, replica_id, None, theme, cx)
1550        } else {
1551            MouseEventHandler::new::<Authenticate, _, _>(0, cx, |state, _| {
1552                let style = if state.hovered {
1553                    &theme.workspace.titlebar.hovered_sign_in_prompt
1554                } else {
1555                    &theme.workspace.titlebar.sign_in_prompt
1556                };
1557                Label::new("Sign in".to_string(), style.text.clone())
1558                    .contained()
1559                    .with_style(style.container)
1560                    .boxed()
1561            })
1562            .on_click(|cx| cx.dispatch_action(Authenticate))
1563            .with_cursor_style(CursorStyle::PointingHand)
1564            .aligned()
1565            .boxed()
1566        }
1567    }
1568
1569    fn render_avatar(
1570        &self,
1571        avatar: Arc<ImageData>,
1572        replica_id: ReplicaId,
1573        peer_id: Option<PeerId>,
1574        theme: &Theme,
1575        cx: &mut RenderContext<Self>,
1576    ) -> ElementBox {
1577        let replica_color = theme.editor.replica_selection_style(replica_id).cursor;
1578        let is_followed = peer_id.map_or(false, |peer_id| {
1579            self.follower_states_by_leader.contains_key(&peer_id)
1580        });
1581        let mut avatar_style = theme.workspace.titlebar.avatar;
1582        if is_followed {
1583            avatar_style.border = Border::all(1.0, replica_color);
1584        }
1585        let content = Stack::new()
1586            .with_child(
1587                Image::new(avatar)
1588                    .with_style(avatar_style)
1589                    .constrained()
1590                    .with_width(theme.workspace.titlebar.avatar_width)
1591                    .aligned()
1592                    .boxed(),
1593            )
1594            .with_child(
1595                AvatarRibbon::new(replica_color)
1596                    .constrained()
1597                    .with_width(theme.workspace.titlebar.avatar_ribbon.width)
1598                    .with_height(theme.workspace.titlebar.avatar_ribbon.height)
1599                    .aligned()
1600                    .bottom()
1601                    .boxed(),
1602            )
1603            .constrained()
1604            .with_width(theme.workspace.right_sidebar.width)
1605            .boxed();
1606
1607        if let Some(peer_id) = peer_id {
1608            MouseEventHandler::new::<ToggleFollow, _, _>(replica_id.into(), cx, move |_, _| content)
1609                .with_cursor_style(CursorStyle::PointingHand)
1610                .on_click(move |cx| cx.dispatch_action(ToggleFollow(peer_id)))
1611                .boxed()
1612        } else {
1613            content
1614        }
1615    }
1616
1617    fn render_share_icon(&self, theme: &Theme, cx: &mut RenderContext<Self>) -> Option<ElementBox> {
1618        if self.project().read(cx).is_local() && self.client.user_id().is_some() {
1619            let color = if self.project().read(cx).is_shared() {
1620                theme.workspace.titlebar.share_icon_active_color
1621            } else {
1622                theme.workspace.titlebar.share_icon_color
1623            };
1624            Some(
1625                MouseEventHandler::new::<ToggleShare, _, _>(0, cx, |_, _| {
1626                    Align::new(
1627                        Svg::new("icons/broadcast-24.svg")
1628                            .with_color(color)
1629                            .constrained()
1630                            .with_width(24.)
1631                            .boxed(),
1632                    )
1633                    .boxed()
1634                })
1635                .with_cursor_style(CursorStyle::PointingHand)
1636                .on_click(|cx| cx.dispatch_action(ToggleShare))
1637                .boxed(),
1638            )
1639        } else {
1640            None
1641        }
1642    }
1643
1644    fn render_disconnected_overlay(&self, cx: &AppContext) -> Option<ElementBox> {
1645        if self.project.read(cx).is_read_only() {
1646            let theme = &cx.global::<Settings>().theme;
1647            Some(
1648                EventHandler::new(
1649                    Label::new(
1650                        "Your connection to the remote project has been lost.".to_string(),
1651                        theme.workspace.disconnected_overlay.text.clone(),
1652                    )
1653                    .aligned()
1654                    .contained()
1655                    .with_style(theme.workspace.disconnected_overlay.container)
1656                    .boxed(),
1657                )
1658                .capture(|_, _, _| true)
1659                .boxed(),
1660            )
1661        } else {
1662            None
1663        }
1664    }
1665
1666    // RPC handlers
1667
1668    async fn handle_follow(
1669        this: ViewHandle<Self>,
1670        envelope: TypedEnvelope<proto::Follow>,
1671        _: Arc<Client>,
1672        mut cx: AsyncAppContext,
1673    ) -> Result<proto::FollowResponse> {
1674        this.update(&mut cx, |this, cx| {
1675            this.leader_state
1676                .followers
1677                .insert(envelope.original_sender_id()?);
1678
1679            let active_view_id = this
1680                .active_item(cx)
1681                .and_then(|i| i.to_followable_item_handle(cx))
1682                .map(|i| i.id() as u64);
1683            Ok(proto::FollowResponse {
1684                active_view_id,
1685                views: this
1686                    .panes()
1687                    .iter()
1688                    .flat_map(|pane| {
1689                        let leader_id = this.leader_for_pane(pane).map(|id| id.0);
1690                        pane.read(cx).items().filter_map({
1691                            let cx = &cx;
1692                            move |item| {
1693                                let id = item.id() as u64;
1694                                let item = item.to_followable_item_handle(cx)?;
1695                                let variant = item.to_state_proto(cx)?;
1696                                Some(proto::View {
1697                                    id,
1698                                    leader_id,
1699                                    variant: Some(variant),
1700                                })
1701                            }
1702                        })
1703                    })
1704                    .collect(),
1705            })
1706        })
1707    }
1708
1709    async fn handle_unfollow(
1710        this: ViewHandle<Self>,
1711        envelope: TypedEnvelope<proto::Unfollow>,
1712        _: Arc<Client>,
1713        mut cx: AsyncAppContext,
1714    ) -> Result<()> {
1715        this.update(&mut cx, |this, _| {
1716            this.leader_state
1717                .followers
1718                .remove(&envelope.original_sender_id()?);
1719            Ok(())
1720        })
1721    }
1722
1723    async fn handle_update_followers(
1724        this: ViewHandle<Self>,
1725        envelope: TypedEnvelope<proto::UpdateFollowers>,
1726        _: Arc<Client>,
1727        mut cx: AsyncAppContext,
1728    ) -> Result<()> {
1729        let leader_id = envelope.original_sender_id()?;
1730        match envelope
1731            .payload
1732            .variant
1733            .ok_or_else(|| anyhow!("invalid update"))?
1734        {
1735            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
1736                this.update(&mut cx, |this, cx| {
1737                    this.update_leader_state(leader_id, cx, |state, _| {
1738                        state.active_view_id = update_active_view.id;
1739                    });
1740                    Ok::<_, anyhow::Error>(())
1741                })
1742            }
1743            proto::update_followers::Variant::UpdateView(update_view) => {
1744                this.update(&mut cx, |this, cx| {
1745                    let variant = update_view
1746                        .variant
1747                        .ok_or_else(|| anyhow!("missing update view variant"))?;
1748                    this.update_leader_state(leader_id, cx, |state, cx| {
1749                        let variant = variant.clone();
1750                        match state
1751                            .items_by_leader_view_id
1752                            .entry(update_view.id)
1753                            .or_insert(FollowerItem::Loading(Vec::new()))
1754                        {
1755                            FollowerItem::Loaded(item) => {
1756                                item.apply_update_proto(variant, cx).log_err();
1757                            }
1758                            FollowerItem::Loading(updates) => updates.push(variant),
1759                        }
1760                    });
1761                    Ok(())
1762                })
1763            }
1764            proto::update_followers::Variant::CreateView(view) => {
1765                let panes = this.read_with(&cx, |this, _| {
1766                    this.follower_states_by_leader
1767                        .get(&leader_id)
1768                        .into_iter()
1769                        .flat_map(|states_by_pane| states_by_pane.keys())
1770                        .cloned()
1771                        .collect()
1772                });
1773                Self::add_views_from_leader(this.clone(), leader_id, panes, vec![view], &mut cx)
1774                    .await?;
1775                Ok(())
1776            }
1777        }
1778        .log_err();
1779
1780        Ok(())
1781    }
1782
1783    async fn add_views_from_leader(
1784        this: ViewHandle<Self>,
1785        leader_id: PeerId,
1786        panes: Vec<ViewHandle<Pane>>,
1787        views: Vec<proto::View>,
1788        cx: &mut AsyncAppContext,
1789    ) -> Result<()> {
1790        let project = this.read_with(cx, |this, _| this.project.clone());
1791        let replica_id = project
1792            .read_with(cx, |project, _| {
1793                project
1794                    .collaborators()
1795                    .get(&leader_id)
1796                    .map(|c| c.replica_id)
1797            })
1798            .ok_or_else(|| anyhow!("no such collaborator {}", leader_id))?;
1799
1800        let item_builders = cx.update(|cx| {
1801            cx.default_global::<FollowableItemBuilders>()
1802                .values()
1803                .map(|b| b.0)
1804                .collect::<Vec<_>>()
1805                .clone()
1806        });
1807
1808        let mut item_tasks_by_pane = HashMap::default();
1809        for pane in panes {
1810            let mut item_tasks = Vec::new();
1811            let mut leader_view_ids = Vec::new();
1812            for view in &views {
1813                let mut variant = view.variant.clone();
1814                if variant.is_none() {
1815                    Err(anyhow!("missing variant"))?;
1816                }
1817                for build_item in &item_builders {
1818                    let task =
1819                        cx.update(|cx| build_item(pane.clone(), project.clone(), &mut variant, cx));
1820                    if let Some(task) = task {
1821                        item_tasks.push(task);
1822                        leader_view_ids.push(view.id);
1823                        break;
1824                    } else {
1825                        assert!(variant.is_some());
1826                    }
1827                }
1828            }
1829
1830            item_tasks_by_pane.insert(pane, (item_tasks, leader_view_ids));
1831        }
1832
1833        for (pane, (item_tasks, leader_view_ids)) in item_tasks_by_pane {
1834            let items = futures::future::try_join_all(item_tasks).await?;
1835            this.update(cx, |this, cx| {
1836                let state = this
1837                    .follower_states_by_leader
1838                    .get_mut(&leader_id)?
1839                    .get_mut(&pane)?;
1840
1841                for (id, item) in leader_view_ids.into_iter().zip(items) {
1842                    item.set_leader_replica_id(Some(replica_id), cx);
1843                    match state.items_by_leader_view_id.entry(id) {
1844                        hash_map::Entry::Occupied(e) => {
1845                            let e = e.into_mut();
1846                            if let FollowerItem::Loading(updates) = e {
1847                                for update in updates.drain(..) {
1848                                    item.apply_update_proto(update, cx)
1849                                        .context("failed to apply view update")
1850                                        .log_err();
1851                                }
1852                            }
1853                            *e = FollowerItem::Loaded(item);
1854                        }
1855                        hash_map::Entry::Vacant(e) => {
1856                            e.insert(FollowerItem::Loaded(item));
1857                        }
1858                    }
1859                }
1860
1861                Some(())
1862            });
1863        }
1864        this.update(cx, |this, cx| this.leader_updated(leader_id, cx));
1865
1866        Ok(())
1867    }
1868
1869    fn update_followers(
1870        &self,
1871        update: proto::update_followers::Variant,
1872        cx: &AppContext,
1873    ) -> Option<()> {
1874        let project_id = self.project.read(cx).remote_id()?;
1875        if !self.leader_state.followers.is_empty() {
1876            self.client
1877                .send(proto::UpdateFollowers {
1878                    project_id,
1879                    follower_ids: self.leader_state.followers.iter().map(|f| f.0).collect(),
1880                    variant: Some(update),
1881                })
1882                .log_err();
1883        }
1884        None
1885    }
1886
1887    pub fn leader_for_pane(&self, pane: &ViewHandle<Pane>) -> Option<PeerId> {
1888        self.follower_states_by_leader
1889            .iter()
1890            .find_map(|(leader_id, state)| {
1891                if state.contains_key(pane) {
1892                    Some(*leader_id)
1893                } else {
1894                    None
1895                }
1896            })
1897    }
1898
1899    fn update_leader_state(
1900        &mut self,
1901        leader_id: PeerId,
1902        cx: &mut ViewContext<Self>,
1903        mut update_fn: impl FnMut(&mut FollowerState, &mut ViewContext<Self>),
1904    ) {
1905        for (_, state) in self
1906            .follower_states_by_leader
1907            .get_mut(&leader_id)
1908            .into_iter()
1909            .flatten()
1910        {
1911            update_fn(state, cx);
1912        }
1913        self.leader_updated(leader_id, cx);
1914    }
1915
1916    fn leader_updated(&mut self, leader_id: PeerId, cx: &mut ViewContext<Self>) -> Option<()> {
1917        let mut items_to_add = Vec::new();
1918        for (pane, state) in self.follower_states_by_leader.get(&leader_id)? {
1919            if let Some(active_item) = state
1920                .active_view_id
1921                .and_then(|id| state.items_by_leader_view_id.get(&id))
1922            {
1923                if let FollowerItem::Loaded(item) = active_item {
1924                    items_to_add.push((pane.clone(), item.boxed_clone()));
1925                }
1926            }
1927        }
1928
1929        for (pane, item) in items_to_add {
1930            Pane::add_item(self, pane.clone(), item.boxed_clone(), false, cx);
1931            if pane == self.active_pane {
1932                pane.update(cx, |pane, cx| pane.focus_active_item(cx));
1933            }
1934            cx.notify();
1935        }
1936        None
1937    }
1938}
1939
1940impl Entity for Workspace {
1941    type Event = Event;
1942}
1943
1944impl View for Workspace {
1945    fn ui_name() -> &'static str {
1946        "Workspace"
1947    }
1948
1949    fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
1950        let theme = cx.global::<Settings>().theme.clone();
1951        Stack::new()
1952            .with_child(
1953                Flex::column()
1954                    .with_child(self.render_titlebar(&theme, cx))
1955                    .with_child(
1956                        Stack::new()
1957                            .with_child({
1958                                let mut content = Flex::row();
1959                                content.add_child(self.left_sidebar.render(&theme, cx));
1960                                if let Some(element) =
1961                                    self.left_sidebar.render_active_item(&theme, cx)
1962                                {
1963                                    content
1964                                        .add_child(FlexItem::new(element).flex(0.8, false).boxed());
1965                                }
1966                                content.add_child(
1967                                    Flex::column()
1968                                        .with_child(
1969                                            FlexItem::new(self.center.render(
1970                                                &theme,
1971                                                &self.follower_states_by_leader,
1972                                                self.project.read(cx).collaborators(),
1973                                            ))
1974                                            .flex(1., true)
1975                                            .boxed(),
1976                                        )
1977                                        .with_child(ChildView::new(&self.status_bar).boxed())
1978                                        .flex(1., true)
1979                                        .boxed(),
1980                                );
1981                                if let Some(element) =
1982                                    self.right_sidebar.render_active_item(&theme, cx)
1983                                {
1984                                    content
1985                                        .add_child(FlexItem::new(element).flex(0.8, false).boxed());
1986                                }
1987                                content.add_child(self.right_sidebar.render(&theme, cx));
1988                                content.boxed()
1989                            })
1990                            .with_children(self.modal.as_ref().map(|m| ChildView::new(m).boxed()))
1991                            .flex(1.0, true)
1992                            .boxed(),
1993                    )
1994                    .contained()
1995                    .with_background_color(theme.workspace.background)
1996                    .boxed(),
1997            )
1998            .with_children(self.render_disconnected_overlay(cx))
1999            .named("workspace")
2000    }
2001
2002    fn on_focus(&mut self, cx: &mut ViewContext<Self>) {
2003        cx.focus(&self.active_pane);
2004    }
2005}
2006
2007pub trait WorkspaceHandle {
2008    fn file_project_paths(&self, cx: &AppContext) -> Vec<ProjectPath>;
2009}
2010
2011impl WorkspaceHandle for ViewHandle<Workspace> {
2012    fn file_project_paths(&self, cx: &AppContext) -> Vec<ProjectPath> {
2013        self.read(cx)
2014            .worktrees(cx)
2015            .flat_map(|worktree| {
2016                let worktree_id = worktree.read(cx).id();
2017                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
2018                    worktree_id,
2019                    path: f.path.clone(),
2020                })
2021            })
2022            .collect::<Vec<_>>()
2023    }
2024}
2025
2026pub struct AvatarRibbon {
2027    color: Color,
2028}
2029
2030impl AvatarRibbon {
2031    pub fn new(color: Color) -> AvatarRibbon {
2032        AvatarRibbon { color }
2033    }
2034}
2035
2036impl Element for AvatarRibbon {
2037    type LayoutState = ();
2038
2039    type PaintState = ();
2040
2041    fn layout(
2042        &mut self,
2043        constraint: gpui::SizeConstraint,
2044        _: &mut gpui::LayoutContext,
2045    ) -> (gpui::geometry::vector::Vector2F, Self::LayoutState) {
2046        (constraint.max, ())
2047    }
2048
2049    fn paint(
2050        &mut self,
2051        bounds: gpui::geometry::rect::RectF,
2052        _: gpui::geometry::rect::RectF,
2053        _: &mut Self::LayoutState,
2054        cx: &mut gpui::PaintContext,
2055    ) -> Self::PaintState {
2056        let mut path = PathBuilder::new();
2057        path.reset(bounds.lower_left());
2058        path.curve_to(
2059            bounds.origin() + vec2f(bounds.height(), 0.),
2060            bounds.origin(),
2061        );
2062        path.line_to(bounds.upper_right() - vec2f(bounds.height(), 0.));
2063        path.curve_to(bounds.lower_right(), bounds.upper_right());
2064        path.line_to(bounds.lower_left());
2065        cx.scene.push_path(path.build(self.color, None));
2066    }
2067
2068    fn dispatch_event(
2069        &mut self,
2070        _: &gpui::Event,
2071        _: RectF,
2072        _: RectF,
2073        _: &mut Self::LayoutState,
2074        _: &mut Self::PaintState,
2075        _: &mut gpui::EventContext,
2076    ) -> bool {
2077        false
2078    }
2079
2080    fn debug(
2081        &self,
2082        bounds: gpui::geometry::rect::RectF,
2083        _: &Self::LayoutState,
2084        _: &Self::PaintState,
2085        _: &gpui::DebugContext,
2086    ) -> gpui::json::Value {
2087        json::json!({
2088            "type": "AvatarRibbon",
2089            "bounds": bounds.to_json(),
2090            "color": self.color.to_json(),
2091        })
2092    }
2093}
2094
2095impl std::fmt::Debug for OpenParams {
2096    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
2097        f.debug_struct("OpenParams")
2098            .field("paths", &self.paths)
2099            .finish()
2100    }
2101}
2102
2103fn open(action: &Open, cx: &mut MutableAppContext) {
2104    let app_state = action.0.clone();
2105    let mut paths = cx.prompt_for_paths(PathPromptOptions {
2106        files: true,
2107        directories: true,
2108        multiple: true,
2109    });
2110    cx.spawn(|mut cx| async move {
2111        if let Some(paths) = paths.recv().await.flatten() {
2112            cx.update(|cx| cx.dispatch_global_action(OpenPaths(OpenParams { paths, app_state })));
2113        }
2114    })
2115    .detach();
2116}
2117
2118pub struct WorkspaceCreated(WeakViewHandle<Workspace>);
2119
2120pub fn open_paths(
2121    abs_paths: &[PathBuf],
2122    app_state: &Arc<AppState>,
2123    cx: &mut MutableAppContext,
2124) -> Task<ViewHandle<Workspace>> {
2125    log::info!("open paths {:?}", abs_paths);
2126
2127    // Open paths in existing workspace if possible
2128    let mut existing = None;
2129    for window_id in cx.window_ids().collect::<Vec<_>>() {
2130        if let Some(workspace_handle) = cx.root_view::<Workspace>(window_id) {
2131            if workspace_handle.update(cx, |workspace, cx| {
2132                if workspace.contains_paths(abs_paths, cx.as_ref()) {
2133                    cx.activate_window(window_id);
2134                    existing = Some(workspace_handle.clone());
2135                    true
2136                } else {
2137                    false
2138                }
2139            }) {
2140                break;
2141            }
2142        }
2143    }
2144
2145    let workspace = existing.unwrap_or_else(|| {
2146        cx.add_window((app_state.build_window_options)(), |cx| {
2147            let project = Project::local(
2148                app_state.client.clone(),
2149                app_state.user_store.clone(),
2150                app_state.languages.clone(),
2151                app_state.fs.clone(),
2152                cx,
2153            );
2154            (app_state.build_workspace)(project, &app_state, cx)
2155        })
2156        .1
2157    });
2158
2159    let task = workspace.update(cx, |workspace, cx| workspace.open_paths(abs_paths, cx));
2160    cx.spawn(|_| async move {
2161        task.await;
2162        workspace
2163    })
2164}
2165
2166pub fn join_project(
2167    project_id: u64,
2168    app_state: &Arc<AppState>,
2169    cx: &mut MutableAppContext,
2170) -> Task<Result<ViewHandle<Workspace>>> {
2171    for window_id in cx.window_ids().collect::<Vec<_>>() {
2172        if let Some(workspace) = cx.root_view::<Workspace>(window_id) {
2173            if workspace.read(cx).project().read(cx).remote_id() == Some(project_id) {
2174                return Task::ready(Ok(workspace));
2175            }
2176        }
2177    }
2178
2179    let app_state = app_state.clone();
2180    cx.spawn(|mut cx| async move {
2181        let project = Project::remote(
2182            project_id,
2183            app_state.client.clone(),
2184            app_state.user_store.clone(),
2185            app_state.languages.clone(),
2186            app_state.fs.clone(),
2187            &mut cx,
2188        )
2189        .await?;
2190        Ok(cx.update(|cx| {
2191            cx.add_window((app_state.build_window_options)(), |cx| {
2192                (app_state.build_workspace)(project, &app_state, cx)
2193            })
2194            .1
2195        }))
2196    })
2197}
2198
2199fn open_new(app_state: &Arc<AppState>, cx: &mut MutableAppContext) {
2200    let (window_id, workspace) = cx.add_window((app_state.build_window_options)(), |cx| {
2201        let project = Project::local(
2202            app_state.client.clone(),
2203            app_state.user_store.clone(),
2204            app_state.languages.clone(),
2205            app_state.fs.clone(),
2206            cx,
2207        );
2208        (app_state.build_workspace)(project, &app_state, cx)
2209    });
2210    cx.dispatch_action(window_id, vec![workspace.id()], &OpenNew(app_state.clone()));
2211}