lib.rs

   1mod items;
   2pub mod pane;
   3pub mod pane_group;
   4pub mod settings;
   5pub mod sidebar;
   6mod status_bar;
   7
   8use anyhow::Result;
   9use client::{Authenticate, ChannelList, Client, UserStore};
  10use gpui::{
  11    action, elements::*, json::to_string_pretty, keymap::Binding, platform::CursorStyle,
  12    AnyViewHandle, AppContext, ClipboardItem, Entity, ModelHandle, MutableAppContext, PromptLevel,
  13    RenderContext, Task, View, ViewContext, ViewHandle, WeakModelHandle,
  14};
  15use language::{Buffer, LanguageRegistry};
  16use log::error;
  17pub use pane::*;
  18pub use pane_group::*;
  19use postage::{prelude::Stream, watch};
  20use project::{Fs, Project, ProjectPath, Worktree};
  21pub use settings::Settings;
  22use sidebar::{Side, Sidebar, SidebarItemId, ToggleSidebarItem, ToggleSidebarItemFocus};
  23use std::{
  24    collections::{hash_map::Entry, HashMap},
  25    future::Future,
  26    path::{Path, PathBuf},
  27    sync::Arc,
  28};
  29
  30use crate::status_bar::StatusBar;
  31
  32action!(OpenNew, WorkspaceParams);
  33action!(Save);
  34action!(DebugElements);
  35
  36pub fn init(cx: &mut MutableAppContext) {
  37    cx.add_action(Workspace::save_active_item);
  38    cx.add_action(Workspace::debug_elements);
  39    cx.add_action(Workspace::open_new_file);
  40    cx.add_action(Workspace::toggle_sidebar_item);
  41    cx.add_action(Workspace::toggle_sidebar_item_focus);
  42    cx.add_bindings(vec![
  43        Binding::new("cmd-s", Save, None),
  44        Binding::new("cmd-alt-i", DebugElements, None),
  45        Binding::new(
  46            "cmd-shift-!",
  47            ToggleSidebarItem(SidebarItemId {
  48                side: Side::Left,
  49                item_index: 0,
  50            }),
  51            None,
  52        ),
  53        Binding::new(
  54            "cmd-1",
  55            ToggleSidebarItemFocus(SidebarItemId {
  56                side: Side::Left,
  57                item_index: 0,
  58            }),
  59            None,
  60        ),
  61    ]);
  62    pane::init(cx);
  63}
  64
  65pub trait Item: Entity + Sized {
  66    type View: ItemView;
  67
  68    fn build_view(
  69        handle: ModelHandle<Self>,
  70        settings: watch::Receiver<Settings>,
  71        cx: &mut ViewContext<Self::View>,
  72    ) -> Self::View;
  73
  74    fn project_path(&self) -> Option<ProjectPath>;
  75}
  76
  77pub trait ItemView: View {
  78    fn title(&self, cx: &AppContext) -> String;
  79    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
  80    fn clone_on_split(&self, _: &mut ViewContext<Self>) -> Option<Self>
  81    where
  82        Self: Sized,
  83    {
  84        None
  85    }
  86    fn is_dirty(&self, _: &AppContext) -> bool {
  87        false
  88    }
  89    fn has_conflict(&self, _: &AppContext) -> bool {
  90        false
  91    }
  92    fn save(&mut self, cx: &mut ViewContext<Self>) -> Result<Task<Result<()>>>;
  93    fn save_as(
  94        &mut self,
  95        worktree: ModelHandle<Worktree>,
  96        path: &Path,
  97        cx: &mut ViewContext<Self>,
  98    ) -> Task<anyhow::Result<()>>;
  99    fn should_activate_item_on_event(_: &Self::Event) -> bool {
 100        false
 101    }
 102    fn should_close_item_on_event(_: &Self::Event) -> bool {
 103        false
 104    }
 105    fn should_update_tab_on_event(_: &Self::Event) -> bool {
 106        false
 107    }
 108}
 109
 110pub trait ItemHandle: Send + Sync {
 111    fn boxed_clone(&self) -> Box<dyn ItemHandle>;
 112    fn downgrade(&self) -> Box<dyn WeakItemHandle>;
 113}
 114
 115pub trait WeakItemHandle {
 116    fn add_view(
 117        &self,
 118        window_id: usize,
 119        settings: watch::Receiver<Settings>,
 120        cx: &mut MutableAppContext,
 121    ) -> Option<Box<dyn ItemViewHandle>>;
 122    fn alive(&self, cx: &AppContext) -> bool;
 123    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
 124}
 125
 126pub trait ItemViewHandle {
 127    fn title(&self, cx: &AppContext) -> String;
 128    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
 129    fn boxed_clone(&self) -> Box<dyn ItemViewHandle>;
 130    fn clone_on_split(&self, cx: &mut MutableAppContext) -> Option<Box<dyn ItemViewHandle>>;
 131    fn set_parent_pane(&self, pane: &ViewHandle<Pane>, cx: &mut MutableAppContext);
 132    fn id(&self) -> usize;
 133    fn to_any(&self) -> AnyViewHandle;
 134    fn is_dirty(&self, cx: &AppContext) -> bool;
 135    fn has_conflict(&self, cx: &AppContext) -> bool;
 136    fn save(&self, cx: &mut MutableAppContext) -> Result<Task<Result<()>>>;
 137    fn save_as(
 138        &self,
 139        worktree: ModelHandle<Worktree>,
 140        path: &Path,
 141        cx: &mut MutableAppContext,
 142    ) -> Task<anyhow::Result<()>>;
 143}
 144
 145impl<T: Item> ItemHandle for ModelHandle<T> {
 146    fn boxed_clone(&self) -> Box<dyn ItemHandle> {
 147        Box::new(self.clone())
 148    }
 149
 150    fn downgrade(&self) -> Box<dyn WeakItemHandle> {
 151        Box::new(self.downgrade())
 152    }
 153}
 154
 155impl<T: Item> WeakItemHandle for WeakModelHandle<T> {
 156    fn add_view(
 157        &self,
 158        window_id: usize,
 159        settings: watch::Receiver<Settings>,
 160        cx: &mut MutableAppContext,
 161    ) -> Option<Box<dyn ItemViewHandle>> {
 162        if let Some(handle) = self.upgrade(cx.as_ref()) {
 163            Some(Box::new(cx.add_view(window_id, |cx| {
 164                T::build_view(handle, settings, cx)
 165            })))
 166        } else {
 167            None
 168        }
 169    }
 170
 171    fn alive(&self, cx: &AppContext) -> bool {
 172        self.upgrade(cx).is_some()
 173    }
 174
 175    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
 176        self.upgrade(cx).and_then(|h| h.read(cx).project_path())
 177    }
 178}
 179
 180impl<T: ItemView> ItemViewHandle for ViewHandle<T> {
 181    fn title(&self, cx: &AppContext) -> String {
 182        self.read(cx).title(cx)
 183    }
 184
 185    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
 186        self.read(cx).project_path(cx)
 187    }
 188
 189    fn boxed_clone(&self) -> Box<dyn ItemViewHandle> {
 190        Box::new(self.clone())
 191    }
 192
 193    fn clone_on_split(&self, cx: &mut MutableAppContext) -> Option<Box<dyn ItemViewHandle>> {
 194        self.update(cx, |item, cx| {
 195            cx.add_option_view(|cx| item.clone_on_split(cx))
 196        })
 197        .map(|handle| Box::new(handle) as Box<dyn ItemViewHandle>)
 198    }
 199
 200    fn set_parent_pane(&self, pane: &ViewHandle<Pane>, cx: &mut MutableAppContext) {
 201        pane.update(cx, |_, cx| {
 202            cx.subscribe(self, |pane, item, event, cx| {
 203                if T::should_close_item_on_event(event) {
 204                    pane.close_item(item.id(), cx);
 205                    return;
 206                }
 207                if T::should_activate_item_on_event(event) {
 208                    if let Some(ix) = pane.item_index(&item) {
 209                        pane.activate_item(ix, cx);
 210                        pane.activate(cx);
 211                    }
 212                }
 213                if T::should_update_tab_on_event(event) {
 214                    cx.notify()
 215                }
 216            })
 217            .detach();
 218        });
 219    }
 220
 221    fn save(&self, cx: &mut MutableAppContext) -> Result<Task<Result<()>>> {
 222        self.update(cx, |item, cx| item.save(cx))
 223    }
 224
 225    fn save_as(
 226        &self,
 227        worktree: ModelHandle<Worktree>,
 228        path: &Path,
 229        cx: &mut MutableAppContext,
 230    ) -> Task<anyhow::Result<()>> {
 231        self.update(cx, |item, cx| item.save_as(worktree, path, cx))
 232    }
 233
 234    fn is_dirty(&self, cx: &AppContext) -> bool {
 235        self.read(cx).is_dirty(cx)
 236    }
 237
 238    fn has_conflict(&self, cx: &AppContext) -> bool {
 239        self.read(cx).has_conflict(cx)
 240    }
 241
 242    fn id(&self) -> usize {
 243        self.id()
 244    }
 245
 246    fn to_any(&self) -> AnyViewHandle {
 247        self.into()
 248    }
 249}
 250
 251impl Clone for Box<dyn ItemViewHandle> {
 252    fn clone(&self) -> Box<dyn ItemViewHandle> {
 253        self.boxed_clone()
 254    }
 255}
 256
 257impl Clone for Box<dyn ItemHandle> {
 258    fn clone(&self) -> Box<dyn ItemHandle> {
 259        self.boxed_clone()
 260    }
 261}
 262
 263#[derive(Clone)]
 264pub struct WorkspaceParams {
 265    pub client: Arc<Client>,
 266    pub fs: Arc<dyn Fs>,
 267    pub languages: Arc<LanguageRegistry>,
 268    pub settings: watch::Receiver<Settings>,
 269    pub user_store: ModelHandle<UserStore>,
 270    pub channel_list: ModelHandle<ChannelList>,
 271}
 272
 273impl WorkspaceParams {
 274    #[cfg(any(test, feature = "test-support"))]
 275    pub fn test(cx: &mut MutableAppContext) -> Self {
 276        let mut languages = LanguageRegistry::new();
 277        languages.add(Arc::new(language::Language::new(
 278            language::LanguageConfig {
 279                name: "Rust".to_string(),
 280                path_suffixes: vec!["rs".to_string()],
 281                ..Default::default()
 282            },
 283            tree_sitter_rust::language(),
 284        )));
 285
 286        let client = Client::new();
 287        let http_client = client::test::FakeHttpClient::new(|_| async move {
 288            Ok(client::http::ServerResponse::new(404))
 289        });
 290        let theme =
 291            gpui::fonts::with_font_cache(cx.font_cache().clone(), || theme::Theme::default());
 292        let settings = Settings::new("Courier", cx.font_cache(), Arc::new(theme)).unwrap();
 293        let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
 294        Self {
 295            channel_list: cx
 296                .add_model(|cx| ChannelList::new(user_store.clone(), client.clone(), cx)),
 297            client,
 298            fs: Arc::new(project::FakeFs::new()),
 299            languages: Arc::new(languages),
 300            settings: watch::channel_with(settings).1,
 301            user_store,
 302        }
 303    }
 304}
 305
 306pub struct Workspace {
 307    pub settings: watch::Receiver<Settings>,
 308    client: Arc<Client>,
 309    user_store: ModelHandle<client::UserStore>,
 310    fs: Arc<dyn Fs>,
 311    modal: Option<AnyViewHandle>,
 312    center: PaneGroup,
 313    left_sidebar: Sidebar,
 314    right_sidebar: Sidebar,
 315    panes: Vec<ViewHandle<Pane>>,
 316    active_pane: ViewHandle<Pane>,
 317    status_bar: ViewHandle<StatusBar>,
 318    project: ModelHandle<Project>,
 319    items: Vec<Box<dyn WeakItemHandle>>,
 320    loading_items: HashMap<
 321        ProjectPath,
 322        postage::watch::Receiver<Option<Result<Box<dyn ItemHandle>, Arc<anyhow::Error>>>>,
 323    >,
 324    _observe_current_user: Task<()>,
 325}
 326
 327impl Workspace {
 328    pub fn new(params: &WorkspaceParams, cx: &mut ViewContext<Self>) -> Self {
 329        let project = cx.add_model(|_| {
 330            Project::new(
 331                params.languages.clone(),
 332                params.client.clone(),
 333                params.fs.clone(),
 334            )
 335        });
 336        cx.observe(&project, |_, _, cx| cx.notify()).detach();
 337
 338        let pane = cx.add_view(|_| Pane::new(params.settings.clone()));
 339        let pane_id = pane.id();
 340        cx.observe(&pane, move |me, _, cx| {
 341            let active_entry = me.active_project_path(cx);
 342            me.project
 343                .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 344        })
 345        .detach();
 346        cx.subscribe(&pane, move |me, _, event, cx| {
 347            me.handle_pane_event(pane_id, event, cx)
 348        })
 349        .detach();
 350        cx.focus(&pane);
 351
 352        let cursor_position = cx.add_view(|_| items::CursorPosition::new(params.settings.clone()));
 353        let status_bar = cx.add_view(|cx| {
 354            let mut status_bar = StatusBar::new(&pane, params.settings.clone(), cx);
 355            status_bar.add_right_item(cursor_position, cx);
 356            status_bar
 357        });
 358
 359        let mut current_user = params.user_store.read(cx).watch_current_user().clone();
 360        let mut connection_status = params.client.status().clone();
 361        let _observe_current_user = cx.spawn_weak(|this, mut cx| async move {
 362            current_user.recv().await;
 363            connection_status.recv().await;
 364            let mut stream =
 365                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 366
 367            while stream.recv().await.is_some() {
 368                cx.update(|cx| {
 369                    if let Some(this) = this.upgrade(&cx) {
 370                        this.update(cx, |_, cx| cx.notify());
 371                    }
 372                })
 373            }
 374        });
 375
 376        Workspace {
 377            modal: None,
 378            center: PaneGroup::new(pane.id()),
 379            panes: vec![pane.clone()],
 380            active_pane: pane.clone(),
 381            status_bar,
 382            settings: params.settings.clone(),
 383            client: params.client.clone(),
 384            user_store: params.user_store.clone(),
 385            fs: params.fs.clone(),
 386            left_sidebar: Sidebar::new(Side::Left),
 387            right_sidebar: Sidebar::new(Side::Right),
 388            project,
 389            items: Default::default(),
 390            loading_items: Default::default(),
 391            _observe_current_user,
 392        }
 393    }
 394
 395    pub fn left_sidebar_mut(&mut self) -> &mut Sidebar {
 396        &mut self.left_sidebar
 397    }
 398
 399    pub fn right_sidebar_mut(&mut self) -> &mut Sidebar {
 400        &mut self.right_sidebar
 401    }
 402
 403    pub fn project(&self) -> &ModelHandle<Project> {
 404        &self.project
 405    }
 406
 407    pub fn worktrees<'a>(&self, cx: &'a AppContext) -> &'a [ModelHandle<Worktree>] {
 408        &self.project.read(cx).worktrees()
 409    }
 410
 411    pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
 412        paths.iter().all(|path| self.contains_path(&path, cx))
 413    }
 414
 415    pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
 416        for worktree in self.worktrees(cx) {
 417            let worktree = worktree.read(cx).as_local();
 418            if worktree.map_or(false, |w| w.contains_abs_path(path)) {
 419                return true;
 420            }
 421        }
 422        false
 423    }
 424
 425    pub fn worktree_scans_complete(&self, cx: &AppContext) -> impl Future<Output = ()> + 'static {
 426        let futures = self
 427            .worktrees(cx)
 428            .iter()
 429            .filter_map(|worktree| worktree.read(cx).as_local())
 430            .map(|worktree| worktree.scan_complete())
 431            .collect::<Vec<_>>();
 432        async move {
 433            for future in futures {
 434                future.await;
 435            }
 436        }
 437    }
 438
 439    pub fn open_paths(&mut self, abs_paths: &[PathBuf], cx: &mut ViewContext<Self>) -> Task<()> {
 440        let entries = abs_paths
 441            .iter()
 442            .cloned()
 443            .map(|path| self.project_path_for_path(&path, cx))
 444            .collect::<Vec<_>>();
 445
 446        let fs = self.fs.clone();
 447        let tasks = abs_paths
 448            .iter()
 449            .cloned()
 450            .zip(entries.into_iter())
 451            .map(|(abs_path, project_path)| {
 452                cx.spawn(|this, mut cx| {
 453                    let fs = fs.clone();
 454                    async move {
 455                        let project_path = project_path.await?;
 456                        if fs.is_file(&abs_path).await {
 457                            if let Some(entry) =
 458                                this.update(&mut cx, |this, cx| this.open_entry(project_path, cx))
 459                            {
 460                                entry.await;
 461                            }
 462                        }
 463                        Ok(())
 464                    }
 465                })
 466            })
 467            .collect::<Vec<Task<Result<()>>>>();
 468
 469        cx.foreground().spawn(async move {
 470            for task in tasks {
 471                if let Err(error) = task.await {
 472                    log::error!("error opening paths {}", error);
 473                }
 474            }
 475        })
 476    }
 477
 478    fn worktree_for_abs_path(
 479        &self,
 480        abs_path: &Path,
 481        cx: &mut ViewContext<Self>,
 482    ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
 483        let abs_path: Arc<Path> = Arc::from(abs_path);
 484        cx.spawn(|this, mut cx| async move {
 485            let mut entry_id = None;
 486            this.read_with(&cx, |this, cx| {
 487                for tree in this.worktrees(cx) {
 488                    if let Some(relative_path) = tree
 489                        .read(cx)
 490                        .as_local()
 491                        .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
 492                    {
 493                        entry_id = Some((tree.clone(), relative_path.into()));
 494                        break;
 495                    }
 496                }
 497            });
 498
 499            if let Some(entry_id) = entry_id {
 500                Ok(entry_id)
 501            } else {
 502                let worktree = this
 503                    .update(&mut cx, |this, cx| this.add_worktree(&abs_path, cx))
 504                    .await?;
 505                Ok((worktree, PathBuf::new()))
 506            }
 507        })
 508    }
 509
 510    fn project_path_for_path(
 511        &self,
 512        abs_path: &Path,
 513        cx: &mut ViewContext<Self>,
 514    ) -> Task<Result<ProjectPath>> {
 515        let entry = self.worktree_for_abs_path(abs_path, cx);
 516        cx.spawn(|_, _| async move {
 517            let (worktree, path) = entry.await?;
 518            Ok(ProjectPath {
 519                worktree_id: worktree.id(),
 520                path: path.into(),
 521            })
 522        })
 523    }
 524
 525    pub fn add_worktree(
 526        &self,
 527        path: &Path,
 528        cx: &mut ViewContext<Self>,
 529    ) -> Task<Result<ModelHandle<Worktree>>> {
 530        self.project
 531            .update(cx, |project, cx| project.add_local_worktree(path, cx))
 532    }
 533
 534    pub fn toggle_modal<V, F>(&mut self, cx: &mut ViewContext<Self>, add_view: F)
 535    where
 536        V: 'static + View,
 537        F: FnOnce(&mut ViewContext<Self>, &mut Self) -> ViewHandle<V>,
 538    {
 539        if self.modal.as_ref().map_or(false, |modal| modal.is::<V>()) {
 540            self.modal.take();
 541            cx.focus_self();
 542        } else {
 543            let modal = add_view(cx, self);
 544            cx.focus(&modal);
 545            self.modal = Some(modal.into());
 546        }
 547        cx.notify();
 548    }
 549
 550    pub fn modal(&self) -> Option<&AnyViewHandle> {
 551        self.modal.as_ref()
 552    }
 553
 554    pub fn dismiss_modal(&mut self, cx: &mut ViewContext<Self>) {
 555        if self.modal.take().is_some() {
 556            cx.focus(&self.active_pane);
 557            cx.notify();
 558        }
 559    }
 560
 561    pub fn open_new_file(&mut self, _: &OpenNew, cx: &mut ViewContext<Self>) {
 562        let buffer = cx.add_model(|cx| Buffer::new(0, "", cx));
 563        let item_handle = ItemHandle::downgrade(&buffer);
 564        let view = item_handle
 565            .add_view(cx.window_id(), self.settings.clone(), cx)
 566            .unwrap();
 567        self.items.push(item_handle);
 568        self.active_pane().add_item_view(view, cx.as_mut());
 569    }
 570
 571    #[must_use]
 572    pub fn open_entry(
 573        &mut self,
 574        project_path: ProjectPath,
 575        cx: &mut ViewContext<Self>,
 576    ) -> Option<Task<()>> {
 577        let pane = self.active_pane().clone();
 578        if self.activate_or_open_existing_entry(project_path.clone(), &pane, cx) {
 579            return None;
 580        }
 581
 582        // let (worktree_id, path) = project_path.clone();
 583
 584        let worktree = match self
 585            .project
 586            .read(cx)
 587            .worktree_for_id(project_path.worktree_id)
 588        {
 589            Some(worktree) => worktree,
 590            None => {
 591                log::error!("worktree {} does not exist", project_path.worktree_id);
 592                return None;
 593            }
 594        };
 595
 596        if let Entry::Vacant(entry) = self.loading_items.entry(project_path.clone()) {
 597            let (mut tx, rx) = postage::watch::channel();
 598            entry.insert(rx);
 599
 600            let project_path = project_path.clone();
 601            cx.as_mut()
 602                .spawn(|mut cx| async move {
 603                    let buffer = worktree
 604                        .update(&mut cx, |worktree, cx| {
 605                            worktree.open_buffer(project_path.path.as_ref(), cx)
 606                        })
 607                        .await;
 608                    *tx.borrow_mut() = Some(
 609                        buffer
 610                            .map(|buffer| Box::new(buffer) as Box<dyn ItemHandle>)
 611                            .map_err(Arc::new),
 612                    );
 613                })
 614                .detach();
 615        }
 616
 617        let pane = pane.downgrade();
 618        let settings = self.settings.clone();
 619        let mut watch = self.loading_items.get(&project_path).unwrap().clone();
 620
 621        Some(cx.spawn(|this, mut cx| async move {
 622            let load_result = loop {
 623                if let Some(load_result) = watch.borrow().as_ref() {
 624                    break load_result.clone();
 625                }
 626                watch.recv().await;
 627            };
 628
 629            this.update(&mut cx, |this, cx| {
 630                this.loading_items.remove(&project_path);
 631                if let Some(pane) = pane.upgrade(&cx) {
 632                    match load_result {
 633                        Ok(item) => {
 634                            // By the time loading finishes, the entry could have been already added
 635                            // to the pane. If it was, we activate it, otherwise we'll store the
 636                            // item and add a new view for it.
 637                            if !this.activate_or_open_existing_entry(project_path, &pane, cx) {
 638                                let weak_item = item.downgrade();
 639                                let view = weak_item
 640                                    .add_view(cx.window_id(), settings, cx.as_mut())
 641                                    .unwrap();
 642                                this.items.push(weak_item);
 643                                pane.add_item_view(view, cx.as_mut());
 644                            }
 645                        }
 646                        Err(error) => {
 647                            log::error!("error opening item: {}", error);
 648                        }
 649                    }
 650                }
 651            })
 652        }))
 653    }
 654
 655    fn activate_or_open_existing_entry(
 656        &mut self,
 657        project_path: ProjectPath,
 658        pane: &ViewHandle<Pane>,
 659        cx: &mut ViewContext<Self>,
 660    ) -> bool {
 661        // If the pane contains a view for this file, then activate
 662        // that item view.
 663        if pane.update(cx, |pane, cx| pane.activate_entry(project_path.clone(), cx)) {
 664            return true;
 665        }
 666
 667        // Otherwise, if this file is already open somewhere in the workspace,
 668        // then add another view for it.
 669        let settings = self.settings.clone();
 670        let mut view_for_existing_item = None;
 671        self.items.retain(|item| {
 672            if item.alive(cx.as_ref()) {
 673                if view_for_existing_item.is_none()
 674                    && item
 675                        .project_path(cx)
 676                        .map_or(false, |item_project_path| item_project_path == project_path)
 677                {
 678                    view_for_existing_item = Some(
 679                        item.add_view(cx.window_id(), settings.clone(), cx.as_mut())
 680                            .unwrap(),
 681                    );
 682                }
 683                true
 684            } else {
 685                false
 686            }
 687        });
 688        if let Some(view) = view_for_existing_item {
 689            pane.add_item_view(view, cx.as_mut());
 690            true
 691        } else {
 692            false
 693        }
 694    }
 695
 696    pub fn active_item(&self, cx: &ViewContext<Self>) -> Option<Box<dyn ItemViewHandle>> {
 697        self.active_pane().read(cx).active_item()
 698    }
 699
 700    fn active_project_path(&self, cx: &ViewContext<Self>) -> Option<ProjectPath> {
 701        self.active_item(cx).and_then(|item| item.project_path(cx))
 702    }
 703
 704    pub fn save_active_item(&mut self, _: &Save, cx: &mut ViewContext<Self>) {
 705        if let Some(item) = self.active_item(cx) {
 706            let handle = cx.handle();
 707            if item.project_path(cx.as_ref()).is_none() {
 708                let worktree = self.worktrees(cx).first();
 709                let start_abs_path = worktree
 710                    .and_then(|w| w.read(cx).as_local())
 711                    .map_or(Path::new(""), |w| w.abs_path())
 712                    .to_path_buf();
 713                cx.prompt_for_new_path(&start_abs_path, move |abs_path, cx| {
 714                    if let Some(abs_path) = abs_path {
 715                        cx.spawn(|mut cx| async move {
 716                            let result = match handle
 717                                .update(&mut cx, |this, cx| {
 718                                    this.worktree_for_abs_path(&abs_path, cx)
 719                                })
 720                                .await
 721                            {
 722                                Ok((worktree, path)) => {
 723                                    handle
 724                                        .update(&mut cx, |_, cx| {
 725                                            item.save_as(worktree, &path, cx.as_mut())
 726                                        })
 727                                        .await
 728                                }
 729                                Err(error) => Err(error),
 730                            };
 731
 732                            if let Err(error) = result {
 733                                error!("failed to save item: {:?}, ", error);
 734                            }
 735                        })
 736                        .detach()
 737                    }
 738                });
 739                return;
 740            } else if item.has_conflict(cx.as_ref()) {
 741                const CONFLICT_MESSAGE: &'static str = "This file has changed on disk since you started editing it. Do you want to overwrite it?";
 742
 743                cx.prompt(
 744                    PromptLevel::Warning,
 745                    CONFLICT_MESSAGE,
 746                    &["Overwrite", "Cancel"],
 747                    move |answer, cx| {
 748                        if answer == 0 {
 749                            cx.spawn(|mut cx| async move {
 750                                if let Err(error) = cx.update(|cx| item.save(cx)).unwrap().await {
 751                                    error!("failed to save item: {:?}, ", error);
 752                                }
 753                            })
 754                            .detach();
 755                        }
 756                    },
 757                );
 758            } else {
 759                cx.spawn(|_, mut cx| async move {
 760                    if let Err(error) = cx.update(|cx| item.save(cx)).unwrap().await {
 761                        error!("failed to save item: {:?}, ", error);
 762                    }
 763                })
 764                .detach();
 765            }
 766        }
 767    }
 768
 769    pub fn toggle_sidebar_item(&mut self, action: &ToggleSidebarItem, cx: &mut ViewContext<Self>) {
 770        let sidebar = match action.0.side {
 771            Side::Left => &mut self.left_sidebar,
 772            Side::Right => &mut self.right_sidebar,
 773        };
 774        sidebar.toggle_item(action.0.item_index);
 775        if let Some(active_item) = sidebar.active_item() {
 776            cx.focus(active_item);
 777        } else {
 778            cx.focus_self();
 779        }
 780        cx.notify();
 781    }
 782
 783    pub fn toggle_sidebar_item_focus(
 784        &mut self,
 785        action: &ToggleSidebarItemFocus,
 786        cx: &mut ViewContext<Self>,
 787    ) {
 788        let sidebar = match action.0.side {
 789            Side::Left => &mut self.left_sidebar,
 790            Side::Right => &mut self.right_sidebar,
 791        };
 792        sidebar.activate_item(action.0.item_index);
 793        if let Some(active_item) = sidebar.active_item() {
 794            if active_item.is_focused(cx) {
 795                cx.focus_self();
 796            } else {
 797                cx.focus(active_item);
 798            }
 799        }
 800        cx.notify();
 801    }
 802
 803    pub fn debug_elements(&mut self, _: &DebugElements, cx: &mut ViewContext<Self>) {
 804        match to_string_pretty(&cx.debug_elements()) {
 805            Ok(json) => {
 806                let kib = json.len() as f32 / 1024.;
 807                cx.as_mut().write_to_clipboard(ClipboardItem::new(json));
 808                log::info!(
 809                    "copied {:.1} KiB of element debug JSON to the clipboard",
 810                    kib
 811                );
 812            }
 813            Err(error) => {
 814                log::error!("error debugging elements: {}", error);
 815            }
 816        };
 817    }
 818
 819    fn add_pane(&mut self, cx: &mut ViewContext<Self>) -> ViewHandle<Pane> {
 820        let pane = cx.add_view(|_| Pane::new(self.settings.clone()));
 821        let pane_id = pane.id();
 822        cx.observe(&pane, move |me, _, cx| {
 823            let active_entry = me.active_project_path(cx);
 824            me.project
 825                .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 826        })
 827        .detach();
 828        cx.subscribe(&pane, move |me, _, event, cx| {
 829            me.handle_pane_event(pane_id, event, cx)
 830        })
 831        .detach();
 832        self.panes.push(pane.clone());
 833        self.activate_pane(pane.clone(), cx);
 834        pane
 835    }
 836
 837    fn activate_pane(&mut self, pane: ViewHandle<Pane>, cx: &mut ViewContext<Self>) {
 838        self.active_pane = pane;
 839        self.status_bar.update(cx, |status_bar, cx| {
 840            status_bar.set_active_pane(&self.active_pane, cx);
 841        });
 842        cx.focus(&self.active_pane);
 843        cx.notify();
 844    }
 845
 846    fn handle_pane_event(
 847        &mut self,
 848        pane_id: usize,
 849        event: &pane::Event,
 850        cx: &mut ViewContext<Self>,
 851    ) {
 852        if let Some(pane) = self.pane(pane_id) {
 853            match event {
 854                pane::Event::Split(direction) => {
 855                    self.split_pane(pane, *direction, cx);
 856                }
 857                pane::Event::Remove => {
 858                    self.remove_pane(pane, cx);
 859                }
 860                pane::Event::Activate => {
 861                    self.activate_pane(pane, cx);
 862                }
 863            }
 864        } else {
 865            error!("pane {} not found", pane_id);
 866        }
 867    }
 868
 869    fn split_pane(
 870        &mut self,
 871        pane: ViewHandle<Pane>,
 872        direction: SplitDirection,
 873        cx: &mut ViewContext<Self>,
 874    ) -> ViewHandle<Pane> {
 875        let new_pane = self.add_pane(cx);
 876        self.activate_pane(new_pane.clone(), cx);
 877        if let Some(item) = pane.read(cx).active_item() {
 878            if let Some(clone) = item.clone_on_split(cx.as_mut()) {
 879                new_pane.add_item_view(clone, cx.as_mut());
 880            }
 881        }
 882        self.center
 883            .split(pane.id(), new_pane.id(), direction)
 884            .unwrap();
 885        cx.notify();
 886        new_pane
 887    }
 888
 889    fn remove_pane(&mut self, pane: ViewHandle<Pane>, cx: &mut ViewContext<Self>) {
 890        if self.center.remove(pane.id()).unwrap() {
 891            self.panes.retain(|p| p != &pane);
 892            self.activate_pane(self.panes.last().unwrap().clone(), cx);
 893        }
 894    }
 895
 896    fn pane(&self, pane_id: usize) -> Option<ViewHandle<Pane>> {
 897        self.panes.iter().find(|pane| pane.id() == pane_id).cloned()
 898    }
 899
 900    pub fn active_pane(&self) -> &ViewHandle<Pane> {
 901        &self.active_pane
 902    }
 903
 904    fn render_connection_status(&self) -> Option<ElementBox> {
 905        let theme = &self.settings.borrow().theme;
 906        match &*self.client.status().borrow() {
 907            client::Status::ConnectionError
 908            | client::Status::ConnectionLost
 909            | client::Status::Reauthenticating
 910            | client::Status::Reconnecting { .. }
 911            | client::Status::ReconnectionError { .. } => Some(
 912                Container::new(
 913                    Align::new(
 914                        ConstrainedBox::new(
 915                            Svg::new("icons/offline-14.svg")
 916                                .with_color(theme.workspace.titlebar.icon_color)
 917                                .boxed(),
 918                        )
 919                        .with_width(theme.workspace.titlebar.offline_icon.width)
 920                        .boxed(),
 921                    )
 922                    .boxed(),
 923                )
 924                .with_style(theme.workspace.titlebar.offline_icon.container)
 925                .boxed(),
 926            ),
 927            client::Status::UpgradeRequired => Some(
 928                Label::new(
 929                    "Please update Zed to collaborate".to_string(),
 930                    theme.workspace.titlebar.outdated_warning.text.clone(),
 931                )
 932                .contained()
 933                .with_style(theme.workspace.titlebar.outdated_warning.container)
 934                .aligned()
 935                .boxed(),
 936            ),
 937            _ => None,
 938        }
 939    }
 940
 941    fn render_avatar(&self, cx: &mut RenderContext<Self>) -> ElementBox {
 942        let theme = &self.settings.borrow().theme;
 943        let avatar = if let Some(avatar) = self
 944            .user_store
 945            .read(cx)
 946            .current_user()
 947            .and_then(|user| user.avatar.clone())
 948        {
 949            Image::new(avatar)
 950                .with_style(theme.workspace.titlebar.avatar)
 951                .boxed()
 952        } else {
 953            MouseEventHandler::new::<Authenticate, _, _, _>(0, cx, |_, _| {
 954                Svg::new("icons/signed-out-12.svg")
 955                    .with_color(theme.workspace.titlebar.icon_color)
 956                    .boxed()
 957            })
 958            .on_click(|cx| cx.dispatch_action(Authenticate))
 959            .with_cursor_style(CursorStyle::PointingHand)
 960            .boxed()
 961        };
 962
 963        ConstrainedBox::new(
 964            Align::new(
 965                ConstrainedBox::new(avatar)
 966                    .with_width(theme.workspace.titlebar.avatar_width)
 967                    .boxed(),
 968            )
 969            .boxed(),
 970        )
 971        .with_width(theme.workspace.right_sidebar.width)
 972        .boxed()
 973    }
 974}
 975
 976impl Entity for Workspace {
 977    type Event = ();
 978}
 979
 980impl View for Workspace {
 981    fn ui_name() -> &'static str {
 982        "Workspace"
 983    }
 984
 985    fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
 986        let settings = self.settings.borrow();
 987        let theme = &settings.theme;
 988        Container::new(
 989            Flex::column()
 990                .with_child(
 991                    ConstrainedBox::new(
 992                        Container::new(
 993                            Stack::new()
 994                                .with_child(
 995                                    Align::new(
 996                                        Label::new(
 997                                            "zed".into(),
 998                                            theme.workspace.titlebar.title.clone(),
 999                                        )
1000                                        .boxed(),
1001                                    )
1002                                    .boxed(),
1003                                )
1004                                .with_child(
1005                                    Align::new(
1006                                        Flex::row()
1007                                            .with_children(self.render_connection_status())
1008                                            .with_child(self.render_avatar(cx))
1009                                            .boxed(),
1010                                    )
1011                                    .right()
1012                                    .boxed(),
1013                                )
1014                                .boxed(),
1015                        )
1016                        .with_style(theme.workspace.titlebar.container)
1017                        .boxed(),
1018                    )
1019                    .with_height(32.)
1020                    .named("titlebar"),
1021                )
1022                .with_child(
1023                    Expanded::new(
1024                        1.0,
1025                        Stack::new()
1026                            .with_child({
1027                                let mut content = Flex::row();
1028                                content.add_child(self.left_sidebar.render(&settings, cx));
1029                                if let Some(element) =
1030                                    self.left_sidebar.render_active_item(&settings, cx)
1031                                {
1032                                    content.add_child(Flexible::new(0.8, element).boxed());
1033                                }
1034                                content.add_child(
1035                                    Flex::column()
1036                                        .with_child(
1037                                            Expanded::new(1.0, self.center.render(&settings.theme))
1038                                                .boxed(),
1039                                        )
1040                                        .with_child(ChildView::new(self.status_bar.id()).boxed())
1041                                        .expanded(1.)
1042                                        .boxed(),
1043                                );
1044                                if let Some(element) =
1045                                    self.right_sidebar.render_active_item(&settings, cx)
1046                                {
1047                                    content.add_child(Flexible::new(0.8, element).boxed());
1048                                }
1049                                content.add_child(self.right_sidebar.render(&settings, cx));
1050                                content.boxed()
1051                            })
1052                            .with_children(
1053                                self.modal.as_ref().map(|m| ChildView::new(m.id()).boxed()),
1054                            )
1055                            .boxed(),
1056                    )
1057                    .boxed(),
1058                )
1059                .boxed(),
1060        )
1061        .with_background_color(settings.theme.workspace.background)
1062        .named("workspace")
1063    }
1064
1065    fn on_focus(&mut self, cx: &mut ViewContext<Self>) {
1066        cx.focus(&self.active_pane);
1067    }
1068}
1069
1070#[cfg(test)]
1071pub trait WorkspaceHandle {
1072    fn file_project_paths(&self, cx: &AppContext) -> Vec<ProjectPath>;
1073}
1074
1075#[cfg(test)]
1076impl WorkspaceHandle for ViewHandle<Workspace> {
1077    fn file_project_paths(&self, cx: &AppContext) -> Vec<ProjectPath> {
1078        self.read(cx)
1079            .worktrees(cx)
1080            .iter()
1081            .flat_map(|worktree| {
1082                let worktree_id = worktree.id();
1083                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
1084                    worktree_id,
1085                    path: f.path.clone(),
1086                })
1087            })
1088            .collect::<Vec<_>>()
1089    }
1090}
1091
1092#[cfg(test)]
1093mod tests {
1094    use super::*;
1095    use editor::{Editor, Input};
1096    use serde_json::json;
1097    use std::collections::HashSet;
1098
1099    #[gpui::test]
1100    async fn test_open_entry(mut cx: gpui::TestAppContext) {
1101        let params = cx.update(WorkspaceParams::test);
1102        params
1103            .fs
1104            .as_fake()
1105            .insert_tree(
1106                "/root",
1107                json!({
1108                    "a": {
1109                        "file1": "contents 1",
1110                        "file2": "contents 2",
1111                        "file3": "contents 3",
1112                    },
1113                }),
1114            )
1115            .await;
1116
1117        let (_, workspace) = cx.add_window(|cx| Workspace::new(&params, cx));
1118        workspace
1119            .update(&mut cx, |workspace, cx| {
1120                workspace.add_worktree(Path::new("/root"), cx)
1121            })
1122            .await
1123            .unwrap();
1124
1125        cx.read(|cx| workspace.read(cx).worktree_scans_complete(cx))
1126            .await;
1127        let entries = cx.read(|cx| workspace.file_project_paths(cx));
1128        let file1 = entries[0].clone();
1129        let file2 = entries[1].clone();
1130        let file3 = entries[2].clone();
1131
1132        // Open the first entry
1133        workspace
1134            .update(&mut cx, |w, cx| w.open_entry(file1.clone(), cx))
1135            .unwrap()
1136            .await;
1137        cx.read(|cx| {
1138            let pane = workspace.read(cx).active_pane().read(cx);
1139            assert_eq!(
1140                pane.active_item().unwrap().project_path(cx),
1141                Some(file1.clone())
1142            );
1143            assert_eq!(pane.items().len(), 1);
1144        });
1145
1146        // Open the second entry
1147        workspace
1148            .update(&mut cx, |w, cx| w.open_entry(file2.clone(), cx))
1149            .unwrap()
1150            .await;
1151        cx.read(|cx| {
1152            let pane = workspace.read(cx).active_pane().read(cx);
1153            assert_eq!(
1154                pane.active_item().unwrap().project_path(cx),
1155                Some(file2.clone())
1156            );
1157            assert_eq!(pane.items().len(), 2);
1158        });
1159
1160        // Open the first entry again. The existing pane item is activated.
1161        workspace.update(&mut cx, |w, cx| {
1162            assert!(w.open_entry(file1.clone(), cx).is_none())
1163        });
1164        cx.read(|cx| {
1165            let pane = workspace.read(cx).active_pane().read(cx);
1166            assert_eq!(
1167                pane.active_item().unwrap().project_path(cx),
1168                Some(file1.clone())
1169            );
1170            assert_eq!(pane.items().len(), 2);
1171        });
1172
1173        // Split the pane with the first entry, then open the second entry again.
1174        workspace.update(&mut cx, |w, cx| {
1175            w.split_pane(w.active_pane().clone(), SplitDirection::Right, cx);
1176            assert!(w.open_entry(file2.clone(), cx).is_none());
1177            assert_eq!(
1178                w.active_pane()
1179                    .read(cx)
1180                    .active_item()
1181                    .unwrap()
1182                    .project_path(cx.as_ref()),
1183                Some(file2.clone())
1184            );
1185        });
1186
1187        // Open the third entry twice concurrently. Only one pane item is added.
1188        let (t1, t2) = workspace.update(&mut cx, |w, cx| {
1189            (
1190                w.open_entry(file3.clone(), cx).unwrap(),
1191                w.open_entry(file3.clone(), cx).unwrap(),
1192            )
1193        });
1194        t1.await;
1195        t2.await;
1196        cx.read(|cx| {
1197            let pane = workspace.read(cx).active_pane().read(cx);
1198            assert_eq!(
1199                pane.active_item().unwrap().project_path(cx),
1200                Some(file3.clone())
1201            );
1202            let pane_entries = pane
1203                .items()
1204                .iter()
1205                .map(|i| i.project_path(cx).unwrap())
1206                .collect::<Vec<_>>();
1207            assert_eq!(pane_entries, &[file1, file2, file3]);
1208        });
1209    }
1210
1211    #[gpui::test]
1212    async fn test_open_paths(mut cx: gpui::TestAppContext) {
1213        let params = cx.update(WorkspaceParams::test);
1214        let fs = params.fs.as_fake();
1215        fs.insert_dir("/dir1").await.unwrap();
1216        fs.insert_dir("/dir2").await.unwrap();
1217        fs.insert_file("/dir1/a.txt", "".into()).await.unwrap();
1218        fs.insert_file("/dir2/b.txt", "".into()).await.unwrap();
1219
1220        let (_, workspace) = cx.add_window(|cx| Workspace::new(&params, cx));
1221        workspace
1222            .update(&mut cx, |workspace, cx| {
1223                workspace.add_worktree("/dir1".as_ref(), cx)
1224            })
1225            .await
1226            .unwrap();
1227        cx.read(|cx| workspace.read(cx).worktree_scans_complete(cx))
1228            .await;
1229
1230        // Open a file within an existing worktree.
1231        cx.update(|cx| {
1232            workspace.update(cx, |view, cx| view.open_paths(&["/dir1/a.txt".into()], cx))
1233        })
1234        .await;
1235        cx.read(|cx| {
1236            assert_eq!(
1237                workspace
1238                    .read(cx)
1239                    .active_pane()
1240                    .read(cx)
1241                    .active_item()
1242                    .unwrap()
1243                    .title(cx),
1244                "a.txt"
1245            );
1246        });
1247
1248        // Open a file outside of any existing worktree.
1249        cx.update(|cx| {
1250            workspace.update(cx, |view, cx| view.open_paths(&["/dir2/b.txt".into()], cx))
1251        })
1252        .await;
1253        cx.read(|cx| {
1254            let worktree_roots = workspace
1255                .read(cx)
1256                .worktrees(cx)
1257                .iter()
1258                .map(|w| w.read(cx).as_local().unwrap().abs_path())
1259                .collect::<HashSet<_>>();
1260            assert_eq!(
1261                worktree_roots,
1262                vec!["/dir1", "/dir2/b.txt"]
1263                    .into_iter()
1264                    .map(Path::new)
1265                    .collect(),
1266            );
1267            assert_eq!(
1268                workspace
1269                    .read(cx)
1270                    .active_pane()
1271                    .read(cx)
1272                    .active_item()
1273                    .unwrap()
1274                    .title(cx),
1275                "b.txt"
1276            );
1277        });
1278    }
1279
1280    #[gpui::test]
1281    async fn test_save_conflicting_item(mut cx: gpui::TestAppContext) {
1282        let params = cx.update(WorkspaceParams::test);
1283        let fs = params.fs.as_fake();
1284        fs.insert_tree("/root", json!({ "a.txt": "" })).await;
1285
1286        let (window_id, workspace) = cx.add_window(|cx| Workspace::new(&params, cx));
1287        workspace
1288            .update(&mut cx, |workspace, cx| {
1289                workspace.add_worktree(Path::new("/root"), cx)
1290            })
1291            .await
1292            .unwrap();
1293
1294        // Open a file within an existing worktree.
1295        cx.update(|cx| {
1296            workspace.update(cx, |view, cx| {
1297                view.open_paths(&[PathBuf::from("/root/a.txt")], cx)
1298            })
1299        })
1300        .await;
1301        let editor = cx.read(|cx| {
1302            let pane = workspace.read(cx).active_pane().read(cx);
1303            let item = pane.active_item().unwrap();
1304            item.to_any().downcast::<Editor>().unwrap()
1305        });
1306
1307        cx.update(|cx| editor.update(cx, |editor, cx| editor.handle_input(&Input("x".into()), cx)));
1308        fs.insert_file("/root/a.txt", "changed".to_string())
1309            .await
1310            .unwrap();
1311        editor
1312            .condition(&cx, |editor, cx| editor.has_conflict(cx))
1313            .await;
1314        cx.read(|cx| assert!(editor.is_dirty(cx)));
1315
1316        cx.update(|cx| workspace.update(cx, |w, cx| w.save_active_item(&Save, cx)));
1317        cx.simulate_prompt_answer(window_id, 0);
1318        editor
1319            .condition(&cx, |editor, cx| !editor.is_dirty(cx))
1320            .await;
1321        cx.read(|cx| assert!(!editor.has_conflict(cx)));
1322    }
1323
1324    #[gpui::test]
1325    async fn test_open_and_save_new_file(mut cx: gpui::TestAppContext) {
1326        let params = cx.update(WorkspaceParams::test);
1327        params.fs.as_fake().insert_dir("/root").await.unwrap();
1328        let (_, workspace) = cx.add_window(|cx| Workspace::new(&params, cx));
1329        workspace
1330            .update(&mut cx, |workspace, cx| {
1331                workspace.add_worktree(Path::new("/root"), cx)
1332            })
1333            .await
1334            .unwrap();
1335        let worktree = cx.read(|cx| {
1336            workspace
1337                .read(cx)
1338                .worktrees(cx)
1339                .iter()
1340                .next()
1341                .unwrap()
1342                .clone()
1343        });
1344
1345        // Create a new untitled buffer
1346        let editor = workspace.update(&mut cx, |workspace, cx| {
1347            workspace.open_new_file(&OpenNew(params.clone()), cx);
1348            workspace
1349                .active_item(cx)
1350                .unwrap()
1351                .to_any()
1352                .downcast::<Editor>()
1353                .unwrap()
1354        });
1355
1356        editor.update(&mut cx, |editor, cx| {
1357            assert!(!editor.is_dirty(cx.as_ref()));
1358            assert_eq!(editor.title(cx.as_ref()), "untitled");
1359            assert!(editor.language(cx).is_none());
1360            editor.handle_input(&Input("hi".into()), cx);
1361            assert!(editor.is_dirty(cx.as_ref()));
1362        });
1363
1364        // Save the buffer. This prompts for a filename.
1365        workspace.update(&mut cx, |workspace, cx| {
1366            workspace.save_active_item(&Save, cx)
1367        });
1368        cx.simulate_new_path_selection(|parent_dir| {
1369            assert_eq!(parent_dir, Path::new("/root"));
1370            Some(parent_dir.join("the-new-name.rs"))
1371        });
1372        cx.read(|cx| {
1373            assert!(editor.is_dirty(cx));
1374            assert_eq!(editor.title(cx), "untitled");
1375        });
1376
1377        // When the save completes, the buffer's title is updated.
1378        editor
1379            .condition(&cx, |editor, cx| !editor.is_dirty(cx))
1380            .await;
1381        cx.read(|cx| {
1382            assert!(!editor.is_dirty(cx));
1383            assert_eq!(editor.title(cx), "the-new-name.rs");
1384        });
1385        // The language is assigned based on the path
1386        editor.read_with(&cx, |editor, cx| {
1387            assert_eq!(editor.language(cx).unwrap().name(), "Rust")
1388        });
1389
1390        // Edit the file and save it again. This time, there is no filename prompt.
1391        editor.update(&mut cx, |editor, cx| {
1392            editor.handle_input(&Input(" there".into()), cx);
1393            assert_eq!(editor.is_dirty(cx.as_ref()), true);
1394        });
1395        workspace.update(&mut cx, |workspace, cx| {
1396            workspace.save_active_item(&Save, cx)
1397        });
1398        assert!(!cx.did_prompt_for_new_path());
1399        editor
1400            .condition(&cx, |editor, cx| !editor.is_dirty(cx))
1401            .await;
1402        cx.read(|cx| assert_eq!(editor.title(cx), "the-new-name.rs"));
1403
1404        // Open the same newly-created file in another pane item. The new editor should reuse
1405        // the same buffer.
1406        workspace.update(&mut cx, |workspace, cx| {
1407            workspace.open_new_file(&OpenNew(params.clone()), cx);
1408            workspace.split_pane(workspace.active_pane().clone(), SplitDirection::Right, cx);
1409            assert!(workspace
1410                .open_entry(
1411                    ProjectPath {
1412                        worktree_id: worktree.id(),
1413                        path: Path::new("the-new-name.rs").into()
1414                    },
1415                    cx
1416                )
1417                .is_none());
1418        });
1419        let editor2 = workspace.update(&mut cx, |workspace, cx| {
1420            workspace
1421                .active_item(cx)
1422                .unwrap()
1423                .to_any()
1424                .downcast::<Editor>()
1425                .unwrap()
1426        });
1427        cx.read(|cx| {
1428            assert_eq!(editor2.read(cx).buffer(), editor.read(cx).buffer());
1429        })
1430    }
1431
1432    #[gpui::test]
1433    async fn test_setting_language_when_saving_as_single_file_worktree(
1434        mut cx: gpui::TestAppContext,
1435    ) {
1436        let params = cx.update(WorkspaceParams::test);
1437        params.fs.as_fake().insert_dir("/root").await.unwrap();
1438        let (_, workspace) = cx.add_window(|cx| Workspace::new(&params, cx));
1439
1440        // Create a new untitled buffer
1441        let editor = workspace.update(&mut cx, |workspace, cx| {
1442            workspace.open_new_file(&OpenNew(params.clone()), cx);
1443            workspace
1444                .active_item(cx)
1445                .unwrap()
1446                .to_any()
1447                .downcast::<Editor>()
1448                .unwrap()
1449        });
1450
1451        editor.update(&mut cx, |editor, cx| {
1452            assert!(editor.language(cx).is_none());
1453            editor.handle_input(&Input("hi".into()), cx);
1454            assert!(editor.is_dirty(cx.as_ref()));
1455        });
1456
1457        // Save the buffer. This prompts for a filename.
1458        workspace.update(&mut cx, |workspace, cx| {
1459            workspace.save_active_item(&Save, cx)
1460        });
1461        cx.simulate_new_path_selection(|_| Some(PathBuf::from("/root/the-new-name.rs")));
1462
1463        editor
1464            .condition(&cx, |editor, cx| !editor.is_dirty(cx))
1465            .await;
1466
1467        // The language is assigned based on the path
1468        editor.read_with(&cx, |editor, cx| {
1469            assert_eq!(editor.language(cx).unwrap().name(), "Rust")
1470        });
1471    }
1472
1473    #[gpui::test]
1474    async fn test_pane_actions(mut cx: gpui::TestAppContext) {
1475        cx.update(|cx| pane::init(cx));
1476        let params = cx.update(WorkspaceParams::test);
1477        params
1478            .fs
1479            .as_fake()
1480            .insert_tree(
1481                "/root",
1482                json!({
1483                    "a": {
1484                        "file1": "contents 1",
1485                        "file2": "contents 2",
1486                        "file3": "contents 3",
1487                    },
1488                }),
1489            )
1490            .await;
1491
1492        let (window_id, workspace) = cx.add_window(|cx| Workspace::new(&params, cx));
1493        workspace
1494            .update(&mut cx, |workspace, cx| {
1495                workspace.add_worktree(Path::new("/root"), cx)
1496            })
1497            .await
1498            .unwrap();
1499        cx.read(|cx| workspace.read(cx).worktree_scans_complete(cx))
1500            .await;
1501        let entries = cx.read(|cx| workspace.file_project_paths(cx));
1502        let file1 = entries[0].clone();
1503
1504        let pane_1 = cx.read(|cx| workspace.read(cx).active_pane().clone());
1505
1506        workspace
1507            .update(&mut cx, |w, cx| w.open_entry(file1.clone(), cx))
1508            .unwrap()
1509            .await;
1510        cx.read(|cx| {
1511            assert_eq!(
1512                pane_1.read(cx).active_item().unwrap().project_path(cx),
1513                Some(file1.clone())
1514            );
1515        });
1516
1517        cx.dispatch_action(
1518            window_id,
1519            vec![pane_1.id()],
1520            pane::Split(SplitDirection::Right),
1521        );
1522        cx.update(|cx| {
1523            let pane_2 = workspace.read(cx).active_pane().clone();
1524            assert_ne!(pane_1, pane_2);
1525
1526            let pane2_item = pane_2.read(cx).active_item().unwrap();
1527            assert_eq!(pane2_item.project_path(cx.as_ref()), Some(file1.clone()));
1528
1529            cx.dispatch_action(window_id, vec![pane_2.id()], &CloseActiveItem);
1530            let workspace = workspace.read(cx);
1531            assert_eq!(workspace.panes.len(), 1);
1532            assert_eq!(workspace.active_pane(), &pane_1);
1533        });
1534    }
1535}