project_search.rs

   1use crate::{
   2    active_match_index, match_index_for_direction, query_suggestion_for_editor, Direction,
   3    SearchOption, SelectNextMatch, SelectPrevMatch, ToggleCaseSensitive, ToggleRegex,
   4    ToggleWholeWord,
   5};
   6use collections::HashMap;
   7use editor::{Anchor, Autoscroll, Editor, MultiBuffer, SelectAll};
   8use gpui::{
   9    actions, elements::*, platform::CursorStyle, Action, AppContext, ElementBox, Entity,
  10    ModelContext, ModelHandle, MutableAppContext, RenderContext, Subscription, Task, View,
  11    ViewContext, ViewHandle, WeakModelHandle, WeakViewHandle,
  12};
  13use menu::Confirm;
  14use project::{search::SearchQuery, Project};
  15use settings::Settings;
  16use smallvec::SmallVec;
  17use std::{
  18    any::{Any, TypeId},
  19    ops::Range,
  20    path::PathBuf,
  21};
  22use util::ResultExt as _;
  23use workspace::{
  24    Item, ItemHandle, ItemNavHistory, Pane, ToolbarItemLocation, ToolbarItemView, Workspace,
  25};
  26
  27actions!(project_search, [Deploy, SearchInNew, ToggleFocus]);
  28
  29const MAX_TAB_TITLE_LEN: usize = 24;
  30
  31#[derive(Default)]
  32struct ActiveSearches(HashMap<WeakModelHandle<Project>, WeakViewHandle<ProjectSearchView>>);
  33
  34pub fn init(cx: &mut MutableAppContext) {
  35    cx.set_global(ActiveSearches::default());
  36    cx.add_action(ProjectSearchView::deploy);
  37    cx.add_action(ProjectSearchBar::search);
  38    cx.add_action(ProjectSearchBar::search_in_new);
  39    cx.add_action(ProjectSearchBar::select_next_match);
  40    cx.add_action(ProjectSearchBar::select_prev_match);
  41    cx.add_action(ProjectSearchBar::toggle_focus);
  42    cx.capture_action(ProjectSearchBar::tab);
  43    add_toggle_option_action::<ToggleCaseSensitive>(SearchOption::CaseSensitive, cx);
  44    add_toggle_option_action::<ToggleWholeWord>(SearchOption::WholeWord, cx);
  45    add_toggle_option_action::<ToggleRegex>(SearchOption::Regex, cx);
  46}
  47
  48fn add_toggle_option_action<A: Action>(option: SearchOption, cx: &mut MutableAppContext) {
  49    cx.add_action(move |pane: &mut Pane, _: &A, cx: &mut ViewContext<Pane>| {
  50        if let Some(search_bar) = pane.toolbar().read(cx).item_of_type::<ProjectSearchBar>() {
  51            if search_bar.update(cx, |search_bar, cx| {
  52                search_bar.toggle_search_option(option, cx)
  53            }) {
  54                return;
  55            }
  56        }
  57        cx.propagate_action();
  58    });
  59}
  60
  61struct ProjectSearch {
  62    project: ModelHandle<Project>,
  63    excerpts: ModelHandle<MultiBuffer>,
  64    pending_search: Option<Task<Option<()>>>,
  65    match_ranges: Vec<Range<Anchor>>,
  66    active_query: Option<SearchQuery>,
  67}
  68
  69pub struct ProjectSearchView {
  70    model: ModelHandle<ProjectSearch>,
  71    query_editor: ViewHandle<Editor>,
  72    results_editor: ViewHandle<Editor>,
  73    case_sensitive: bool,
  74    whole_word: bool,
  75    regex: bool,
  76    query_contains_error: bool,
  77    active_match_index: Option<usize>,
  78    results_editor_was_focused: bool,
  79}
  80
  81pub struct ProjectSearchBar {
  82    active_project_search: Option<ViewHandle<ProjectSearchView>>,
  83    subscription: Option<Subscription>,
  84}
  85
  86impl Entity for ProjectSearch {
  87    type Event = ();
  88}
  89
  90impl ProjectSearch {
  91    fn new(project: ModelHandle<Project>, cx: &mut ModelContext<Self>) -> Self {
  92        let replica_id = project.read(cx).replica_id();
  93        Self {
  94            project,
  95            excerpts: cx.add_model(|_| MultiBuffer::new(replica_id)),
  96            pending_search: Default::default(),
  97            match_ranges: Default::default(),
  98            active_query: None,
  99        }
 100    }
 101
 102    fn clone(&self, cx: &mut ModelContext<Self>) -> ModelHandle<Self> {
 103        cx.add_model(|cx| Self {
 104            project: self.project.clone(),
 105            excerpts: self
 106                .excerpts
 107                .update(cx, |excerpts, cx| cx.add_model(|cx| excerpts.clone(cx))),
 108            pending_search: Default::default(),
 109            match_ranges: self.match_ranges.clone(),
 110            active_query: self.active_query.clone(),
 111        })
 112    }
 113
 114    fn search(&mut self, query: SearchQuery, cx: &mut ModelContext<Self>) {
 115        let search = self
 116            .project
 117            .update(cx, |project, cx| project.search(query.clone(), cx));
 118        self.active_query = Some(query);
 119        self.match_ranges.clear();
 120        self.pending_search = Some(cx.spawn_weak(|this, mut cx| async move {
 121            let matches = search.await.log_err()?;
 122            if let Some(this) = this.upgrade(&cx) {
 123                this.update(&mut cx, |this, cx| {
 124                    this.match_ranges.clear();
 125                    let mut matches = matches.into_iter().collect::<Vec<_>>();
 126                    matches
 127                        .sort_by_key(|(buffer, _)| buffer.read(cx).file().map(|file| file.path()));
 128                    this.excerpts.update(cx, |excerpts, cx| {
 129                        excerpts.clear(cx);
 130                        for (buffer, buffer_matches) in matches {
 131                            let ranges_to_highlight = excerpts.push_excerpts_with_context_lines(
 132                                buffer,
 133                                buffer_matches.clone(),
 134                                1,
 135                                cx,
 136                            );
 137                            this.match_ranges.extend(ranges_to_highlight);
 138                        }
 139                    });
 140                    this.pending_search.take();
 141                    cx.notify();
 142                });
 143            }
 144            None
 145        }));
 146        cx.notify();
 147    }
 148}
 149
 150pub enum ViewEvent {
 151    UpdateTab,
 152    EditorEvent(editor::Event),
 153}
 154
 155impl Entity for ProjectSearchView {
 156    type Event = ViewEvent;
 157}
 158
 159impl View for ProjectSearchView {
 160    fn ui_name() -> &'static str {
 161        "ProjectSearchView"
 162    }
 163
 164    fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
 165        let model = &self.model.read(cx);
 166        if model.match_ranges.is_empty() {
 167            let theme = &cx.global::<Settings>().theme;
 168            let text = if self.query_editor.read(cx).text(cx).is_empty() {
 169                ""
 170            } else if model.pending_search.is_some() {
 171                "Searching..."
 172            } else {
 173                "No results"
 174            };
 175            Label::new(text.to_string(), theme.search.results_status.clone())
 176                .aligned()
 177                .contained()
 178                .with_background_color(theme.editor.background)
 179                .flex(1., true)
 180                .boxed()
 181        } else {
 182            ChildView::new(&self.results_editor).flex(1., true).boxed()
 183        }
 184    }
 185
 186    fn on_focus(&mut self, cx: &mut ViewContext<Self>) {
 187        let handle = cx.weak_handle();
 188        cx.update_global(|state: &mut ActiveSearches, cx| {
 189            state
 190                .0
 191                .insert(self.model.read(cx).project.downgrade(), handle)
 192        });
 193
 194        if self.results_editor_was_focused && !self.model.read(cx).match_ranges.is_empty() {
 195            self.focus_results_editor(cx);
 196        } else {
 197            cx.focus(&self.query_editor);
 198        }
 199    }
 200}
 201
 202impl Item for ProjectSearchView {
 203    fn act_as_type(
 204        &self,
 205        type_id: TypeId,
 206        self_handle: &ViewHandle<Self>,
 207        _: &gpui::AppContext,
 208    ) -> Option<gpui::AnyViewHandle> {
 209        if type_id == TypeId::of::<Self>() {
 210            Some(self_handle.into())
 211        } else if type_id == TypeId::of::<Editor>() {
 212            Some((&self.results_editor).into())
 213        } else {
 214            None
 215        }
 216    }
 217
 218    fn deactivated(&mut self, cx: &mut ViewContext<Self>) {
 219        self.results_editor
 220            .update(cx, |editor, cx| editor.deactivated(cx));
 221    }
 222
 223    fn tab_content(&self, tab_theme: &theme::Tab, cx: &gpui::AppContext) -> ElementBox {
 224        let settings = cx.global::<Settings>();
 225        let search_theme = &settings.theme.search;
 226        Flex::row()
 227            .with_child(
 228                Svg::new("icons/magnifier.svg")
 229                    .with_color(tab_theme.label.text.color)
 230                    .constrained()
 231                    .with_width(search_theme.tab_icon_width)
 232                    .aligned()
 233                    .boxed(),
 234            )
 235            .with_children(self.model.read(cx).active_query.as_ref().map(|query| {
 236                let query_text = if query.as_str().len() > MAX_TAB_TITLE_LEN {
 237                    query.as_str()[..MAX_TAB_TITLE_LEN].to_string() + ""
 238                } else {
 239                    query.as_str().to_string()
 240                };
 241
 242                Label::new(query_text, tab_theme.label.clone())
 243                    .aligned()
 244                    .contained()
 245                    .with_margin_left(search_theme.tab_icon_spacing)
 246                    .boxed()
 247            }))
 248            .boxed()
 249    }
 250
 251    fn project_path(&self, _: &gpui::AppContext) -> Option<project::ProjectPath> {
 252        None
 253    }
 254
 255    fn project_entry_ids(&self, cx: &AppContext) -> SmallVec<[project::ProjectEntryId; 3]> {
 256        self.results_editor.project_entry_ids(cx)
 257    }
 258
 259    fn is_singleton(&self, _: &AppContext) -> bool {
 260        false
 261    }
 262
 263    fn can_save(&self, _: &gpui::AppContext) -> bool {
 264        true
 265    }
 266
 267    fn is_dirty(&self, cx: &AppContext) -> bool {
 268        self.results_editor.read(cx).is_dirty(cx)
 269    }
 270
 271    fn has_conflict(&self, cx: &AppContext) -> bool {
 272        self.results_editor.read(cx).has_conflict(cx)
 273    }
 274
 275    fn save(
 276        &mut self,
 277        project: ModelHandle<Project>,
 278        cx: &mut ViewContext<Self>,
 279    ) -> Task<anyhow::Result<()>> {
 280        self.results_editor
 281            .update(cx, |editor, cx| editor.save(project, cx))
 282    }
 283
 284    fn save_as(
 285        &mut self,
 286        _: ModelHandle<Project>,
 287        _: PathBuf,
 288        _: &mut ViewContext<Self>,
 289    ) -> Task<anyhow::Result<()>> {
 290        unreachable!("save_as should not have been called")
 291    }
 292
 293    fn reload(
 294        &mut self,
 295        project: ModelHandle<Project>,
 296        cx: &mut ViewContext<Self>,
 297    ) -> Task<anyhow::Result<()>> {
 298        self.results_editor
 299            .update(cx, |editor, cx| editor.reload(project, cx))
 300    }
 301
 302    fn clone_on_split(&self, cx: &mut ViewContext<Self>) -> Option<Self>
 303    where
 304        Self: Sized,
 305    {
 306        let model = self.model.update(cx, |model, cx| model.clone(cx));
 307        Some(Self::new(model, cx))
 308    }
 309
 310    fn set_nav_history(&mut self, nav_history: ItemNavHistory, cx: &mut ViewContext<Self>) {
 311        self.results_editor.update(cx, |editor, _| {
 312            editor.set_nav_history(Some(nav_history));
 313        });
 314    }
 315
 316    fn navigate(&mut self, data: Box<dyn Any>, cx: &mut ViewContext<Self>) -> bool {
 317        self.results_editor
 318            .update(cx, |editor, cx| editor.navigate(data, cx))
 319    }
 320
 321    fn should_activate_item_on_event(event: &Self::Event) -> bool {
 322        if let ViewEvent::EditorEvent(editor_event) = event {
 323            Editor::should_activate_item_on_event(editor_event)
 324        } else {
 325            false
 326        }
 327    }
 328
 329    fn should_update_tab_on_event(event: &ViewEvent) -> bool {
 330        matches!(event, ViewEvent::UpdateTab)
 331    }
 332
 333    fn is_edit_event(event: &Self::Event) -> bool {
 334        if let ViewEvent::EditorEvent(editor_event) = event {
 335            Editor::is_edit_event(editor_event)
 336        } else {
 337            false
 338        }
 339    }
 340}
 341
 342impl ProjectSearchView {
 343    fn new(model: ModelHandle<ProjectSearch>, cx: &mut ViewContext<Self>) -> Self {
 344        let project;
 345        let excerpts;
 346        let mut query_text = String::new();
 347        let mut regex = false;
 348        let mut case_sensitive = false;
 349        let mut whole_word = false;
 350
 351        {
 352            let model = model.read(cx);
 353            project = model.project.clone();
 354            excerpts = model.excerpts.clone();
 355            if let Some(active_query) = model.active_query.as_ref() {
 356                query_text = active_query.as_str().to_string();
 357                regex = active_query.is_regex();
 358                case_sensitive = active_query.case_sensitive();
 359                whole_word = active_query.whole_word();
 360            }
 361        }
 362        cx.observe(&model, |this, _, cx| this.model_changed(true, cx))
 363            .detach();
 364
 365        let query_editor = cx.add_view(|cx| {
 366            let mut editor =
 367                Editor::single_line(Some(|theme| theme.search.editor.input.clone()), cx);
 368            editor.set_text(query_text, cx);
 369            editor
 370        });
 371        // Subcribe to query_editor in order to reraise editor events for workspace item activation purposes
 372        cx.subscribe(&query_editor, |_, _, event, cx| {
 373            cx.emit(ViewEvent::EditorEvent(event.clone()))
 374        })
 375        .detach();
 376        cx.observe_focus(&query_editor, |this, _, focused, _| {
 377            if focused {
 378                this.results_editor_was_focused = false;
 379            }
 380        })
 381        .detach();
 382
 383        let results_editor = cx.add_view(|cx| {
 384            let mut editor = Editor::for_multibuffer(excerpts, Some(project), cx);
 385            editor.set_searchable(false);
 386            editor
 387        });
 388        cx.observe(&results_editor, |_, _, cx| cx.emit(ViewEvent::UpdateTab))
 389            .detach();
 390        cx.observe_focus(&results_editor, |this, _, focused, _| {
 391            if focused {
 392                this.results_editor_was_focused = true;
 393            }
 394        })
 395        .detach();
 396        cx.subscribe(&results_editor, |this, _, event, cx| {
 397            if matches!(event, editor::Event::SelectionsChanged { .. }) {
 398                this.update_match_index(cx);
 399            }
 400            // Reraise editor events for workspace item activation purposes
 401            cx.emit(ViewEvent::EditorEvent(event.clone()));
 402        })
 403        .detach();
 404
 405        let mut this = ProjectSearchView {
 406            model,
 407            query_editor,
 408            results_editor,
 409            case_sensitive,
 410            whole_word,
 411            regex,
 412            query_contains_error: false,
 413            active_match_index: None,
 414            results_editor_was_focused: false,
 415        };
 416        this.model_changed(false, cx);
 417        this
 418    }
 419
 420    // Re-activate the most recently activated search or the most recent if it has been closed.
 421    // If no search exists in the workspace, create a new one.
 422    fn deploy(workspace: &mut Workspace, _: &Deploy, cx: &mut ViewContext<Workspace>) {
 423        // Clean up entries for dropped projects
 424        cx.update_global(|state: &mut ActiveSearches, cx| {
 425            state.0.retain(|project, _| project.is_upgradable(cx))
 426        });
 427
 428        let active_search = cx
 429            .global::<ActiveSearches>()
 430            .0
 431            .get(&workspace.project().downgrade());
 432
 433        let existing = active_search
 434            .and_then(|active_search| {
 435                workspace
 436                    .items_of_type::<ProjectSearchView>(cx)
 437                    .find(|search| search == active_search)
 438            })
 439            .or_else(|| workspace.item_of_type::<ProjectSearchView>(cx));
 440
 441        let query = workspace.active_item(cx).and_then(|item| {
 442            let editor = item.act_as::<Editor>(cx)?;
 443            let query = query_suggestion_for_editor(&editor, cx);
 444            if query.is_empty() {
 445                None
 446            } else {
 447                Some(query)
 448            }
 449        });
 450
 451        let search = if let Some(existing) = existing {
 452            workspace.activate_item(&existing, cx);
 453            existing
 454        } else {
 455            let model = cx.add_model(|cx| ProjectSearch::new(workspace.project().clone(), cx));
 456            let view = cx.add_view(|cx| ProjectSearchView::new(model, cx));
 457            workspace.add_item(Box::new(view.clone()), cx);
 458            view
 459        };
 460
 461        search.update(cx, |search, cx| {
 462            if let Some(query) = query {
 463                search.set_query(&query, cx);
 464            }
 465            search.focus_query_editor(cx)
 466        });
 467    }
 468
 469    fn search(&mut self, cx: &mut ViewContext<Self>) {
 470        if let Some(query) = self.build_search_query(cx) {
 471            self.model.update(cx, |model, cx| model.search(query, cx));
 472        }
 473    }
 474
 475    fn build_search_query(&mut self, cx: &mut ViewContext<Self>) -> Option<SearchQuery> {
 476        let text = self.query_editor.read(cx).text(cx);
 477        if self.regex {
 478            match SearchQuery::regex(text, self.whole_word, self.case_sensitive) {
 479                Ok(query) => Some(query),
 480                Err(_) => {
 481                    self.query_contains_error = true;
 482                    cx.notify();
 483                    None
 484                }
 485            }
 486        } else {
 487            Some(SearchQuery::text(
 488                text,
 489                self.whole_word,
 490                self.case_sensitive,
 491            ))
 492        }
 493    }
 494
 495    fn select_match(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
 496        if let Some(index) = self.active_match_index {
 497            let model = self.model.read(cx);
 498            let results_editor = self.results_editor.read(cx);
 499            let new_index = match_index_for_direction(
 500                &model.match_ranges,
 501                &results_editor.selections.newest_anchor().head(),
 502                index,
 503                direction,
 504                &results_editor.buffer().read(cx).snapshot(cx),
 505            );
 506            let range_to_select = model.match_ranges[new_index].clone();
 507            self.results_editor.update(cx, |editor, cx| {
 508                editor.unfold_ranges([range_to_select.clone()], false, cx);
 509                editor.change_selections(Some(Autoscroll::Fit), cx, |s| {
 510                    s.select_ranges([range_to_select])
 511                });
 512            });
 513        }
 514    }
 515
 516    fn focus_query_editor(&self, cx: &mut ViewContext<Self>) {
 517        self.query_editor.update(cx, |query_editor, cx| {
 518            query_editor.select_all(&SelectAll, cx);
 519        });
 520        cx.focus(&self.query_editor);
 521    }
 522
 523    fn set_query(&mut self, query: &str, cx: &mut ViewContext<Self>) {
 524        self.query_editor
 525            .update(cx, |query_editor, cx| query_editor.set_text(query, cx));
 526    }
 527
 528    fn focus_results_editor(&self, cx: &mut ViewContext<Self>) {
 529        self.query_editor.update(cx, |query_editor, cx| {
 530            let cursor = query_editor.selections.newest_anchor().head();
 531            query_editor.change_selections(None, cx, |s| s.select_ranges([cursor.clone()..cursor]));
 532        });
 533        cx.focus(&self.results_editor);
 534    }
 535
 536    fn model_changed(&mut self, reset_selections: bool, cx: &mut ViewContext<Self>) {
 537        let match_ranges = self.model.read(cx).match_ranges.clone();
 538        if match_ranges.is_empty() {
 539            self.active_match_index = None;
 540        } else {
 541            self.results_editor.update(cx, |editor, cx| {
 542                if reset_selections {
 543                    editor.change_selections(Some(Autoscroll::Fit), cx, |s| {
 544                        s.select_ranges(match_ranges.first().cloned())
 545                    });
 546                }
 547                editor.highlight_background::<Self>(
 548                    match_ranges,
 549                    |theme| theme.search.match_background,
 550                    cx,
 551                );
 552            });
 553            if self.query_editor.is_focused(cx) {
 554                self.focus_results_editor(cx);
 555            }
 556        }
 557
 558        cx.emit(ViewEvent::UpdateTab);
 559        cx.notify();
 560    }
 561
 562    fn update_match_index(&mut self, cx: &mut ViewContext<Self>) {
 563        let results_editor = self.results_editor.read(cx);
 564        let new_index = active_match_index(
 565            &self.model.read(cx).match_ranges,
 566            &results_editor.selections.newest_anchor().head(),
 567            &results_editor.buffer().read(cx).snapshot(cx),
 568        );
 569        if self.active_match_index != new_index {
 570            self.active_match_index = new_index;
 571            cx.notify();
 572        }
 573    }
 574
 575    pub fn has_matches(&self) -> bool {
 576        self.active_match_index.is_some()
 577    }
 578}
 579
 580impl ProjectSearchBar {
 581    pub fn new() -> Self {
 582        Self {
 583            active_project_search: Default::default(),
 584            subscription: Default::default(),
 585        }
 586    }
 587
 588    fn search(&mut self, _: &Confirm, cx: &mut ViewContext<Self>) {
 589        if let Some(search_view) = self.active_project_search.as_ref() {
 590            search_view.update(cx, |search_view, cx| search_view.search(cx));
 591        }
 592    }
 593
 594    fn search_in_new(workspace: &mut Workspace, _: &SearchInNew, cx: &mut ViewContext<Workspace>) {
 595        if let Some(search_view) = workspace
 596            .active_item(cx)
 597            .and_then(|item| item.downcast::<ProjectSearchView>())
 598        {
 599            let new_query = search_view.update(cx, |search_view, cx| {
 600                let new_query = search_view.build_search_query(cx);
 601                if new_query.is_some() {
 602                    if let Some(old_query) = search_view.model.read(cx).active_query.clone() {
 603                        search_view.query_editor.update(cx, |editor, cx| {
 604                            editor.set_text(old_query.as_str(), cx);
 605                        });
 606                        search_view.regex = old_query.is_regex();
 607                        search_view.whole_word = old_query.whole_word();
 608                        search_view.case_sensitive = old_query.case_sensitive();
 609                    }
 610                }
 611                new_query
 612            });
 613            if let Some(new_query) = new_query {
 614                let model = cx.add_model(|cx| {
 615                    let mut model = ProjectSearch::new(workspace.project().clone(), cx);
 616                    model.search(new_query, cx);
 617                    model
 618                });
 619                workspace.add_item(
 620                    Box::new(cx.add_view(|cx| ProjectSearchView::new(model, cx))),
 621                    cx,
 622                );
 623            }
 624        }
 625    }
 626
 627    fn select_next_match(pane: &mut Pane, _: &SelectNextMatch, cx: &mut ViewContext<Pane>) {
 628        if let Some(search_view) = pane
 629            .active_item()
 630            .and_then(|item| item.downcast::<ProjectSearchView>())
 631        {
 632            search_view.update(cx, |view, cx| view.select_match(Direction::Next, cx));
 633        } else {
 634            cx.propagate_action();
 635        }
 636    }
 637
 638    fn select_prev_match(pane: &mut Pane, _: &SelectPrevMatch, cx: &mut ViewContext<Pane>) {
 639        if let Some(search_view) = pane
 640            .active_item()
 641            .and_then(|item| item.downcast::<ProjectSearchView>())
 642        {
 643            search_view.update(cx, |view, cx| view.select_match(Direction::Prev, cx));
 644        } else {
 645            cx.propagate_action();
 646        }
 647    }
 648
 649    fn toggle_focus(pane: &mut Pane, _: &ToggleFocus, cx: &mut ViewContext<Pane>) {
 650        if let Some(search_view) = pane
 651            .active_item()
 652            .and_then(|item| item.downcast::<ProjectSearchView>())
 653        {
 654            search_view.update(cx, |search_view, cx| {
 655                if search_view.query_editor.is_focused(cx) {
 656                    if !search_view.model.read(cx).match_ranges.is_empty() {
 657                        search_view.focus_results_editor(cx);
 658                    }
 659                } else {
 660                    search_view.focus_query_editor(cx);
 661                }
 662            });
 663        } else {
 664            cx.propagate_action();
 665        }
 666    }
 667
 668    fn tab(&mut self, _: &editor::Tab, cx: &mut ViewContext<Self>) {
 669        if let Some(search_view) = self.active_project_search.as_ref() {
 670            search_view.update(cx, |search_view, cx| {
 671                if search_view.query_editor.is_focused(cx) {
 672                    if !search_view.model.read(cx).match_ranges.is_empty() {
 673                        search_view.focus_results_editor(cx);
 674                    }
 675                } else {
 676                    cx.propagate_action();
 677                }
 678            });
 679        } else {
 680            cx.propagate_action();
 681        }
 682    }
 683
 684    fn toggle_search_option(&mut self, option: SearchOption, cx: &mut ViewContext<Self>) -> bool {
 685        if let Some(search_view) = self.active_project_search.as_ref() {
 686            search_view.update(cx, |search_view, cx| {
 687                let value = match option {
 688                    SearchOption::WholeWord => &mut search_view.whole_word,
 689                    SearchOption::CaseSensitive => &mut search_view.case_sensitive,
 690                    SearchOption::Regex => &mut search_view.regex,
 691                };
 692                *value = !*value;
 693                search_view.search(cx);
 694            });
 695            cx.notify();
 696            true
 697        } else {
 698            false
 699        }
 700    }
 701
 702    fn render_nav_button(
 703        &self,
 704        icon: &str,
 705        direction: Direction,
 706        cx: &mut RenderContext<Self>,
 707    ) -> ElementBox {
 708        let action: Box<dyn Action>;
 709        let tooltip;
 710        match direction {
 711            Direction::Prev => {
 712                action = Box::new(SelectPrevMatch);
 713                tooltip = "Select Previous Match";
 714            }
 715            Direction::Next => {
 716                action = Box::new(SelectNextMatch);
 717                tooltip = "Select Next Match";
 718            }
 719        };
 720        let tooltip_style = cx.global::<Settings>().theme.tooltip.clone();
 721
 722        enum NavButton {}
 723        MouseEventHandler::new::<NavButton, _, _>(direction as usize, cx, |state, cx| {
 724            let style = &cx
 725                .global::<Settings>()
 726                .theme
 727                .search
 728                .option_button
 729                .style_for(state, false);
 730            Label::new(icon.to_string(), style.text.clone())
 731                .contained()
 732                .with_style(style.container)
 733                .boxed()
 734        })
 735        .on_click({
 736            let action = action.boxed_clone();
 737            move |_, _, cx| cx.dispatch_any_action(action.boxed_clone())
 738        })
 739        .with_cursor_style(CursorStyle::PointingHand)
 740        .with_tooltip::<NavButton, _>(
 741            direction as usize,
 742            tooltip.to_string(),
 743            Some(action),
 744            tooltip_style,
 745            cx,
 746        )
 747        .boxed()
 748    }
 749
 750    fn render_option_button(
 751        &self,
 752        icon: &str,
 753        option: SearchOption,
 754        cx: &mut RenderContext<Self>,
 755    ) -> ElementBox {
 756        let tooltip_style = cx.global::<Settings>().theme.tooltip.clone();
 757        let is_active = self.is_option_enabled(option, cx);
 758        MouseEventHandler::new::<Self, _, _>(option as usize, cx, |state, cx| {
 759            let style = &cx
 760                .global::<Settings>()
 761                .theme
 762                .search
 763                .option_button
 764                .style_for(state, is_active);
 765            Label::new(icon.to_string(), style.text.clone())
 766                .contained()
 767                .with_style(style.container)
 768                .boxed()
 769        })
 770        .on_click(move |_, _, cx| cx.dispatch_any_action(option.to_toggle_action()))
 771        .with_cursor_style(CursorStyle::PointingHand)
 772        .with_tooltip::<Self, _>(
 773            option as usize,
 774            format!("Toggle {}", option.label()),
 775            Some(option.to_toggle_action()),
 776            tooltip_style,
 777            cx,
 778        )
 779        .boxed()
 780    }
 781
 782    fn is_option_enabled(&self, option: SearchOption, cx: &AppContext) -> bool {
 783        if let Some(search) = self.active_project_search.as_ref() {
 784            let search = search.read(cx);
 785            match option {
 786                SearchOption::WholeWord => search.whole_word,
 787                SearchOption::CaseSensitive => search.case_sensitive,
 788                SearchOption::Regex => search.regex,
 789            }
 790        } else {
 791            false
 792        }
 793    }
 794}
 795
 796impl Entity for ProjectSearchBar {
 797    type Event = ();
 798}
 799
 800impl View for ProjectSearchBar {
 801    fn ui_name() -> &'static str {
 802        "ProjectSearchBar"
 803    }
 804
 805    fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
 806        if let Some(search) = self.active_project_search.as_ref() {
 807            let search = search.read(cx);
 808            let theme = cx.global::<Settings>().theme.clone();
 809            let editor_container = if search.query_contains_error {
 810                theme.search.invalid_editor
 811            } else {
 812                theme.search.editor.input.container
 813            };
 814            Flex::row()
 815                .with_child(
 816                    Flex::row()
 817                        .with_child(
 818                            ChildView::new(&search.query_editor)
 819                                .aligned()
 820                                .left()
 821                                .flex(1., true)
 822                                .boxed(),
 823                        )
 824                        .with_children(search.active_match_index.map(|match_ix| {
 825                            Label::new(
 826                                format!(
 827                                    "{}/{}",
 828                                    match_ix + 1,
 829                                    search.model.read(cx).match_ranges.len()
 830                                ),
 831                                theme.search.match_index.text.clone(),
 832                            )
 833                            .contained()
 834                            .with_style(theme.search.match_index.container)
 835                            .aligned()
 836                            .boxed()
 837                        }))
 838                        .contained()
 839                        .with_style(editor_container)
 840                        .aligned()
 841                        .constrained()
 842                        .with_min_width(theme.search.editor.min_width)
 843                        .with_max_width(theme.search.editor.max_width)
 844                        .flex(1., false)
 845                        .boxed(),
 846                )
 847                .with_child(
 848                    Flex::row()
 849                        .with_child(self.render_nav_button("<", Direction::Prev, cx))
 850                        .with_child(self.render_nav_button(">", Direction::Next, cx))
 851                        .aligned()
 852                        .boxed(),
 853                )
 854                .with_child(
 855                    Flex::row()
 856                        .with_child(self.render_option_button(
 857                            "Case",
 858                            SearchOption::CaseSensitive,
 859                            cx,
 860                        ))
 861                        .with_child(self.render_option_button("Word", SearchOption::WholeWord, cx))
 862                        .with_child(self.render_option_button("Regex", SearchOption::Regex, cx))
 863                        .contained()
 864                        .with_style(theme.search.option_button_group)
 865                        .aligned()
 866                        .boxed(),
 867                )
 868                .contained()
 869                .with_style(theme.search.container)
 870                .aligned()
 871                .left()
 872                .named("project search")
 873        } else {
 874            Empty::new().boxed()
 875        }
 876    }
 877}
 878
 879impl ToolbarItemView for ProjectSearchBar {
 880    fn set_active_pane_item(
 881        &mut self,
 882        active_pane_item: Option<&dyn workspace::ItemHandle>,
 883        cx: &mut ViewContext<Self>,
 884    ) -> ToolbarItemLocation {
 885        cx.notify();
 886        self.subscription = None;
 887        self.active_project_search = None;
 888        if let Some(search) = active_pane_item.and_then(|i| i.downcast::<ProjectSearchView>()) {
 889            self.subscription = Some(cx.observe(&search, |_, _, cx| cx.notify()));
 890            self.active_project_search = Some(search);
 891            ToolbarItemLocation::PrimaryLeft {
 892                flex: Some((1., false)),
 893            }
 894        } else {
 895            ToolbarItemLocation::Hidden
 896        }
 897    }
 898}
 899
 900#[cfg(test)]
 901mod tests {
 902    use super::*;
 903    use editor::DisplayPoint;
 904    use gpui::{color::Color, TestAppContext};
 905    use project::FakeFs;
 906    use serde_json::json;
 907    use std::sync::Arc;
 908
 909    #[gpui::test]
 910    async fn test_project_search(cx: &mut TestAppContext) {
 911        let fonts = cx.font_cache();
 912        let mut theme = gpui::fonts::with_font_cache(fonts.clone(), || theme::Theme::default());
 913        theme.search.match_background = Color::red();
 914        let settings = Settings::new("Courier", &fonts, Arc::new(theme)).unwrap();
 915        cx.update(|cx| cx.set_global(settings));
 916
 917        let fs = FakeFs::new(cx.background());
 918        fs.insert_tree(
 919            "/dir",
 920            json!({
 921                "one.rs": "const ONE: usize = 1;",
 922                "two.rs": "const TWO: usize = one::ONE + one::ONE;",
 923                "three.rs": "const THREE: usize = one::ONE + two::TWO;",
 924                "four.rs": "const FOUR: usize = one::ONE + three::THREE;",
 925            }),
 926        )
 927        .await;
 928        let project = Project::test(fs.clone(), ["/dir".as_ref()], cx).await;
 929        let search = cx.add_model(|cx| ProjectSearch::new(project, cx));
 930        let search_view = cx.add_view(Default::default(), |cx| {
 931            ProjectSearchView::new(search.clone(), cx)
 932        });
 933
 934        search_view.update(cx, |search_view, cx| {
 935            search_view
 936                .query_editor
 937                .update(cx, |query_editor, cx| query_editor.set_text("TWO", cx));
 938            search_view.search(cx);
 939        });
 940        search_view.next_notification(&cx).await;
 941        search_view.update(cx, |search_view, cx| {
 942            assert_eq!(
 943                search_view
 944                    .results_editor
 945                    .update(cx, |editor, cx| editor.display_text(cx)),
 946                "\n\nconst THREE: usize = one::ONE + two::TWO;\n\n\nconst TWO: usize = one::ONE + one::ONE;"
 947            );
 948            assert_eq!(
 949                search_view
 950                    .results_editor
 951                    .update(cx, |editor, cx| editor.all_background_highlights(cx)),
 952                &[
 953                    (
 954                        DisplayPoint::new(2, 32)..DisplayPoint::new(2, 35),
 955                        Color::red()
 956                    ),
 957                    (
 958                        DisplayPoint::new(2, 37)..DisplayPoint::new(2, 40),
 959                        Color::red()
 960                    ),
 961                    (
 962                        DisplayPoint::new(5, 6)..DisplayPoint::new(5, 9),
 963                        Color::red()
 964                    )
 965                ]
 966            );
 967            assert_eq!(search_view.active_match_index, Some(0));
 968            assert_eq!(
 969                search_view
 970                    .results_editor
 971                    .update(cx, |editor, cx| editor.selections.display_ranges(cx)),
 972                [DisplayPoint::new(2, 32)..DisplayPoint::new(2, 35)]
 973            );
 974
 975            search_view.select_match(Direction::Next, cx);
 976        });
 977
 978        search_view.update(cx, |search_view, cx| {
 979            assert_eq!(search_view.active_match_index, Some(1));
 980            assert_eq!(
 981                search_view
 982                    .results_editor
 983                    .update(cx, |editor, cx| editor.selections.display_ranges(cx)),
 984                [DisplayPoint::new(2, 37)..DisplayPoint::new(2, 40)]
 985            );
 986            search_view.select_match(Direction::Next, cx);
 987        });
 988
 989        search_view.update(cx, |search_view, cx| {
 990            assert_eq!(search_view.active_match_index, Some(2));
 991            assert_eq!(
 992                search_view
 993                    .results_editor
 994                    .update(cx, |editor, cx| editor.selections.display_ranges(cx)),
 995                [DisplayPoint::new(5, 6)..DisplayPoint::new(5, 9)]
 996            );
 997            search_view.select_match(Direction::Next, cx);
 998        });
 999
1000        search_view.update(cx, |search_view, cx| {
1001            assert_eq!(search_view.active_match_index, Some(0));
1002            assert_eq!(
1003                search_view
1004                    .results_editor
1005                    .update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1006                [DisplayPoint::new(2, 32)..DisplayPoint::new(2, 35)]
1007            );
1008            search_view.select_match(Direction::Prev, cx);
1009        });
1010
1011        search_view.update(cx, |search_view, cx| {
1012            assert_eq!(search_view.active_match_index, Some(2));
1013            assert_eq!(
1014                search_view
1015                    .results_editor
1016                    .update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1017                [DisplayPoint::new(5, 6)..DisplayPoint::new(5, 9)]
1018            );
1019            search_view.select_match(Direction::Prev, cx);
1020        });
1021
1022        search_view.update(cx, |search_view, cx| {
1023            assert_eq!(search_view.active_match_index, Some(1));
1024            assert_eq!(
1025                search_view
1026                    .results_editor
1027                    .update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1028                [DisplayPoint::new(2, 37)..DisplayPoint::new(2, 40)]
1029            );
1030        });
1031    }
1032}