buffer_search.rs

   1use crate::{
   2    history::SearchHistory,
   3    mode::{next_mode, SearchMode},
   4    search_bar::render_nav_button,
   5    ActivateRegexMode, ActivateTextMode, CycleMode, NextHistoryQuery, PreviousHistoryQuery,
   6    ReplaceAll, ReplaceNext, SearchOptions, SelectAllMatches, SelectNextMatch, SelectPrevMatch,
   7    ToggleCaseSensitive, ToggleReplace, ToggleWholeWord,
   8};
   9use collections::HashMap;
  10use editor::{Editor, EditorElement, EditorStyle, Tab};
  11use futures::channel::oneshot;
  12use gpui::{
  13    actions, div, impl_actions, Action, AppContext, ClickEvent, EventEmitter, FocusableView,
  14    FontStyle, FontWeight, InteractiveElement as _, IntoElement, KeyContext, ParentElement as _,
  15    Render, Styled, Subscription, Task, TextStyle, View, ViewContext, VisualContext as _,
  16    WhiteSpace, WindowContext,
  17};
  18use project::search::SearchQuery;
  19use serde::Deserialize;
  20use settings::Settings;
  21use std::{any::Any, sync::Arc};
  22use theme::ThemeSettings;
  23
  24use ui::{h_stack, prelude::*, Icon, IconButton, IconElement, ToggleButton, Tooltip};
  25use util::ResultExt;
  26use workspace::{
  27    item::ItemHandle,
  28    searchable::{Direction, SearchEvent, SearchableItemHandle, WeakSearchableItemHandle},
  29    ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView, Workspace,
  30};
  31
  32#[derive(PartialEq, Clone, Deserialize)]
  33pub struct Deploy {
  34    pub focus: bool,
  35}
  36
  37impl_actions!(buffer_search, [Deploy]);
  38
  39actions!(buffer_search, [Dismiss, FocusEditor]);
  40
  41pub enum Event {
  42    UpdateLocation,
  43}
  44
  45pub fn init(cx: &mut AppContext) {
  46    cx.observe_new_views(|editor: &mut Workspace, _| BufferSearchBar::register(editor))
  47        .detach();
  48}
  49
  50pub struct BufferSearchBar {
  51    query_editor: View<Editor>,
  52    replacement_editor: View<Editor>,
  53    active_searchable_item: Option<Box<dyn SearchableItemHandle>>,
  54    active_match_index: Option<usize>,
  55    active_searchable_item_subscription: Option<Subscription>,
  56    active_search: Option<Arc<SearchQuery>>,
  57    searchable_items_with_matches:
  58        HashMap<Box<dyn WeakSearchableItemHandle>, Vec<Box<dyn Any + Send>>>,
  59    pending_search: Option<Task<()>>,
  60    search_options: SearchOptions,
  61    default_options: SearchOptions,
  62    query_contains_error: bool,
  63    dismissed: bool,
  64    search_history: SearchHistory,
  65    current_mode: SearchMode,
  66    replace_enabled: bool,
  67}
  68
  69impl BufferSearchBar {
  70    fn render_text_input(&self, editor: &View<Editor>, cx: &ViewContext<Self>) -> impl IntoElement {
  71        let settings = ThemeSettings::get_global(cx);
  72        let text_style = TextStyle {
  73            color: if editor.read(cx).read_only() {
  74                cx.theme().colors().text_disabled
  75            } else {
  76                cx.theme().colors().text
  77            },
  78            font_family: settings.ui_font.family.clone(),
  79            font_features: settings.ui_font.features,
  80            font_size: rems(0.875).into(),
  81            font_weight: FontWeight::NORMAL,
  82            font_style: FontStyle::Normal,
  83            line_height: relative(1.3).into(),
  84            background_color: None,
  85            underline: None,
  86            white_space: WhiteSpace::Normal,
  87        };
  88
  89        EditorElement::new(
  90            &editor,
  91            EditorStyle {
  92                background: cx.theme().colors().editor_background,
  93                local_player: cx.theme().players().local(),
  94                text: text_style,
  95                ..Default::default()
  96            },
  97        )
  98    }
  99}
 100
 101impl EventEmitter<Event> for BufferSearchBar {}
 102impl EventEmitter<workspace::ToolbarItemEvent> for BufferSearchBar {}
 103impl Render for BufferSearchBar {
 104    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
 105        if self.dismissed {
 106            return div();
 107        }
 108
 109        let supported_options = self.supported_options();
 110
 111        if self.query_editor.read(cx).placeholder_text().is_none() {
 112            let query_focus_handle = self.query_editor.focus_handle(cx);
 113            let up_keystrokes = cx
 114                .bindings_for_action_in(&PreviousHistoryQuery {}, &query_focus_handle)
 115                .into_iter()
 116                .next()
 117                .map(|binding| {
 118                    binding
 119                        .keystrokes()
 120                        .iter()
 121                        .map(|k| k.to_string())
 122                        .collect::<Vec<_>>()
 123                });
 124            let down_keystrokes = cx
 125                .bindings_for_action_in(&NextHistoryQuery {}, &query_focus_handle)
 126                .into_iter()
 127                .next()
 128                .map(|binding| {
 129                    binding
 130                        .keystrokes()
 131                        .iter()
 132                        .map(|k| k.to_string())
 133                        .collect::<Vec<_>>()
 134                });
 135
 136            let placeholder_text =
 137                up_keystrokes
 138                    .zip(down_keystrokes)
 139                    .map(|(up_keystrokes, down_keystrokes)| {
 140                        Arc::from(format!(
 141                            "Search ({}/{} for previous/next query)",
 142                            up_keystrokes.join(" "),
 143                            down_keystrokes.join(" ")
 144                        ))
 145                    });
 146
 147            if let Some(placeholder_text) = placeholder_text {
 148                self.query_editor.update(cx, |editor, cx| {
 149                    editor.set_placeholder_text(placeholder_text, cx);
 150                });
 151            }
 152        }
 153
 154        self.replacement_editor.update(cx, |editor, cx| {
 155            editor.set_placeholder_text("Replace with...", cx);
 156        });
 157
 158        let match_count = self
 159            .active_searchable_item
 160            .as_ref()
 161            .and_then(|searchable_item| {
 162                if self.query(cx).is_empty() {
 163                    return None;
 164                }
 165                let matches = self
 166                    .searchable_items_with_matches
 167                    .get(&searchable_item.downgrade())?;
 168                let message = if let Some(match_ix) = self.active_match_index {
 169                    format!("{}/{}", match_ix + 1, matches.len())
 170                } else {
 171                    "No matches".to_string()
 172                };
 173
 174                Some(ui::Label::new(message))
 175            });
 176        let should_show_replace_input = self.replace_enabled && supported_options.replacement;
 177        let in_replace = self.replacement_editor.focus_handle(cx).is_focused(cx);
 178
 179        let mut key_context = KeyContext::default();
 180        key_context.add("BufferSearchBar");
 181        if in_replace {
 182            key_context.add("in_replace");
 183        }
 184        let editor_border = if self.query_contains_error {
 185            Color::Error.color(cx)
 186        } else {
 187            cx.theme().colors().border
 188        };
 189        h_stack()
 190            .w_full()
 191            .gap_2()
 192            .key_context(key_context)
 193            .capture_action(cx.listener(Self::tab))
 194            .on_action(cx.listener(Self::previous_history_query))
 195            .on_action(cx.listener(Self::next_history_query))
 196            .on_action(cx.listener(Self::dismiss))
 197            .on_action(cx.listener(Self::select_next_match))
 198            .on_action(cx.listener(Self::select_prev_match))
 199            .on_action(cx.listener(|this, _: &ActivateRegexMode, cx| {
 200                this.activate_search_mode(SearchMode::Regex, cx);
 201            }))
 202            .on_action(cx.listener(|this, _: &ActivateTextMode, cx| {
 203                this.activate_search_mode(SearchMode::Text, cx);
 204            }))
 205            .when(self.supported_options().replacement, |this| {
 206                this.on_action(cx.listener(Self::toggle_replace))
 207                    .when(in_replace, |this| {
 208                        this.on_action(cx.listener(Self::replace_next))
 209                            .on_action(cx.listener(Self::replace_all))
 210                    })
 211            })
 212            .when(self.supported_options().case, |this| {
 213                this.on_action(cx.listener(Self::toggle_case_sensitive))
 214            })
 215            .when(self.supported_options().word, |this| {
 216                this.on_action(cx.listener(Self::toggle_whole_word))
 217            })
 218            .child(
 219                h_stack()
 220                    .flex_1()
 221                    .px_2()
 222                    .py_1()
 223                    .gap_2()
 224                    .border_1()
 225                    .border_color(editor_border)
 226                    .rounded_lg()
 227                    .child(IconElement::new(Icon::MagnifyingGlass))
 228                    .child(self.render_text_input(&self.query_editor, cx))
 229                    .children(supported_options.case.then(|| {
 230                        self.render_search_option_button(
 231                            SearchOptions::CASE_SENSITIVE,
 232                            cx.listener(|this, _, cx| {
 233                                this.toggle_case_sensitive(&ToggleCaseSensitive, cx)
 234                            }),
 235                        )
 236                    }))
 237                    .children(supported_options.word.then(|| {
 238                        self.render_search_option_button(
 239                            SearchOptions::WHOLE_WORD,
 240                            cx.listener(|this, _, cx| this.toggle_whole_word(&ToggleWholeWord, cx)),
 241                        )
 242                    })),
 243            )
 244            .child(
 245                h_stack()
 246                    .gap_2()
 247                    .flex_none()
 248                    .child(
 249                        h_stack()
 250                            .child(
 251                                ToggleButton::new("search-mode-text", SearchMode::Text.label())
 252                                    .style(ButtonStyle::Filled)
 253                                    .size(ButtonSize::Large)
 254                                    .selected(self.current_mode == SearchMode::Text)
 255                                    .on_click(cx.listener(move |_, _event, cx| {
 256                                        cx.dispatch_action(SearchMode::Text.action())
 257                                    }))
 258                                    .tooltip(|cx| {
 259                                        Tooltip::for_action(
 260                                            SearchMode::Text.tooltip(),
 261                                            &*SearchMode::Text.action(),
 262                                            cx,
 263                                        )
 264                                    })
 265                                    .first(),
 266                            )
 267                            .child(
 268                                ToggleButton::new("search-mode-regex", SearchMode::Regex.label())
 269                                    .style(ButtonStyle::Filled)
 270                                    .size(ButtonSize::Large)
 271                                    .selected(self.current_mode == SearchMode::Regex)
 272                                    .on_click(cx.listener(move |_, _event, cx| {
 273                                        cx.dispatch_action(SearchMode::Regex.action())
 274                                    }))
 275                                    .tooltip(|cx| {
 276                                        Tooltip::for_action(
 277                                            SearchMode::Regex.tooltip(),
 278                                            &*SearchMode::Regex.action(),
 279                                            cx,
 280                                        )
 281                                    })
 282                                    .last(),
 283                            ),
 284                    )
 285                    .when(supported_options.replacement, |this| {
 286                        this.child(
 287                            IconButton::new(
 288                                "buffer-search-bar-toggle-replace-button",
 289                                Icon::Replace,
 290                            )
 291                            .style(ButtonStyle::Subtle)
 292                            .when(self.replace_enabled, |button| {
 293                                button.style(ButtonStyle::Filled)
 294                            })
 295                            .on_click(cx.listener(|this, _: &ClickEvent, cx| {
 296                                this.toggle_replace(&ToggleReplace, cx);
 297                            }))
 298                            .tooltip(|cx| {
 299                                Tooltip::for_action("Toggle replace", &ToggleReplace, cx)
 300                            }),
 301                        )
 302                    }),
 303            )
 304            .child(
 305                h_stack()
 306                    .gap_0p5()
 307                    .flex_1()
 308                    .when(self.replace_enabled, |this| {
 309                        this.child(
 310                            h_stack()
 311                                .flex_1()
 312                                // We're giving this a fixed height to match the height of the search input,
 313                                // which has an icon inside that is increasing its height.
 314                                .h_8()
 315                                .px_2()
 316                                .py_1()
 317                                .gap_2()
 318                                .border_1()
 319                                .border_color(cx.theme().colors().border)
 320                                .rounded_lg()
 321                                .child(self.render_text_input(&self.replacement_editor, cx)),
 322                        )
 323                        .when(should_show_replace_input, |this| {
 324                            this.child(
 325                                IconButton::new("search-replace-next", ui::Icon::ReplaceNext)
 326                                    .tooltip(move |cx| {
 327                                        Tooltip::for_action("Replace next", &ReplaceNext, cx)
 328                                    })
 329                                    .on_click(cx.listener(|this, _, cx| {
 330                                        this.replace_next(&ReplaceNext, cx)
 331                                    })),
 332                            )
 333                            .child(
 334                                IconButton::new("search-replace-all", ui::Icon::ReplaceAll)
 335                                    .tooltip(move |cx| {
 336                                        Tooltip::for_action("Replace all", &ReplaceAll, cx)
 337                                    })
 338                                    .on_click(
 339                                        cx.listener(|this, _, cx| {
 340                                            this.replace_all(&ReplaceAll, cx)
 341                                        }),
 342                                    ),
 343                            )
 344                        })
 345                    }),
 346            )
 347            .child(
 348                h_stack()
 349                    .gap_0p5()
 350                    .flex_none()
 351                    .child(
 352                        IconButton::new("select-all", ui::Icon::SelectAll)
 353                            .on_click(|_, cx| cx.dispatch_action(SelectAllMatches.boxed_clone()))
 354                            .tooltip(|cx| {
 355                                Tooltip::for_action("Select all matches", &SelectAllMatches, cx)
 356                            }),
 357                    )
 358                    .children(match_count)
 359                    .child(render_nav_button(
 360                        ui::Icon::ChevronLeft,
 361                        self.active_match_index.is_some(),
 362                        "Select previous match",
 363                        &SelectPrevMatch,
 364                    ))
 365                    .child(render_nav_button(
 366                        ui::Icon::ChevronRight,
 367                        self.active_match_index.is_some(),
 368                        "Select next match",
 369                        &SelectNextMatch,
 370                    )),
 371            )
 372    }
 373}
 374
 375impl FocusableView for BufferSearchBar {
 376    fn focus_handle(&self, cx: &AppContext) -> gpui::FocusHandle {
 377        self.query_editor.focus_handle(cx)
 378    }
 379}
 380
 381impl ToolbarItemView for BufferSearchBar {
 382    fn set_active_pane_item(
 383        &mut self,
 384        item: Option<&dyn ItemHandle>,
 385        cx: &mut ViewContext<Self>,
 386    ) -> ToolbarItemLocation {
 387        cx.notify();
 388        self.active_searchable_item_subscription.take();
 389        self.active_searchable_item.take();
 390
 391        self.pending_search.take();
 392
 393        if let Some(searchable_item_handle) =
 394            item.and_then(|item| item.to_searchable_item_handle(cx))
 395        {
 396            let this = cx.view().downgrade();
 397
 398            searchable_item_handle
 399                .subscribe_to_search_events(
 400                    cx,
 401                    Box::new(move |search_event, cx| {
 402                        if let Some(this) = this.upgrade() {
 403                            this.update(cx, |this, cx| {
 404                                this.on_active_searchable_item_event(search_event, cx)
 405                            });
 406                        }
 407                    }),
 408                )
 409                .detach();
 410
 411            self.active_searchable_item = Some(searchable_item_handle);
 412            let _ = self.update_matches(cx);
 413            if !self.dismissed {
 414                return ToolbarItemLocation::Secondary;
 415            }
 416        }
 417        ToolbarItemLocation::Hidden
 418    }
 419
 420    fn row_count(&self, _: &WindowContext<'_>) -> usize {
 421        1
 422    }
 423}
 424
 425/// Registrar inverts the dependency between search and it's downstream user, allowing said downstream user to register search action without knowing exactly what those actions are.
 426pub trait SearchActionsRegistrar {
 427    fn register_handler<A: Action>(
 428        &mut self,
 429        callback: fn(&mut BufferSearchBar, &A, &mut ViewContext<BufferSearchBar>),
 430    );
 431}
 432
 433type GetSearchBar<T> =
 434    for<'a, 'b> fn(&'a T, &'a mut ViewContext<'b, T>) -> Option<View<BufferSearchBar>>;
 435
 436/// Registers search actions on a div that can be taken out.
 437pub struct DivRegistrar<'a, 'b, T: 'static> {
 438    div: Option<Div>,
 439    cx: &'a mut ViewContext<'b, T>,
 440    search_getter: GetSearchBar<T>,
 441}
 442
 443impl<'a, 'b, T: 'static> DivRegistrar<'a, 'b, T> {
 444    pub fn new(search_getter: GetSearchBar<T>, cx: &'a mut ViewContext<'b, T>) -> Self {
 445        Self {
 446            div: Some(div()),
 447            cx,
 448            search_getter,
 449        }
 450    }
 451    pub fn into_div(self) -> Div {
 452        // This option is always Some; it's an option in the first place because we want to call methods
 453        // on div that require ownership.
 454        self.div.unwrap()
 455    }
 456}
 457
 458impl<T: 'static> SearchActionsRegistrar for DivRegistrar<'_, '_, T> {
 459    fn register_handler<A: gpui::Action>(
 460        &mut self,
 461        callback: fn(&mut BufferSearchBar, &A, &mut ViewContext<BufferSearchBar>),
 462    ) {
 463        let getter = self.search_getter;
 464        self.div = self.div.take().map(|div| {
 465            div.on_action(self.cx.listener(move |this, action, cx| {
 466                (getter)(this, cx)
 467                    .clone()
 468                    .map(|search_bar| search_bar.update(cx, |this, cx| callback(this, action, cx)));
 469            }))
 470        });
 471    }
 472}
 473
 474/// Register actions for an active pane.
 475impl SearchActionsRegistrar for Workspace {
 476    fn register_handler<A: Action>(
 477        &mut self,
 478        callback: fn(&mut BufferSearchBar, &A, &mut ViewContext<BufferSearchBar>),
 479    ) {
 480        self.register_action(move |workspace, action: &A, cx| {
 481            let pane = workspace.active_pane();
 482            pane.update(cx, move |this, cx| {
 483                this.toolbar().update(cx, move |this, cx| {
 484                    if let Some(search_bar) = this.item_of_type::<BufferSearchBar>() {
 485                        search_bar.update(cx, move |this, cx| callback(this, action, cx));
 486                        cx.notify();
 487                    }
 488                })
 489            });
 490        });
 491    }
 492}
 493impl BufferSearchBar {
 494    pub fn register_inner(registrar: &mut impl SearchActionsRegistrar) {
 495        registrar.register_handler(|this, action: &ToggleCaseSensitive, cx| {
 496            if this.supported_options().case {
 497                this.toggle_case_sensitive(action, cx);
 498            }
 499        });
 500
 501        registrar.register_handler(|this, action: &ToggleWholeWord, cx| {
 502            if this.supported_options().word {
 503                this.toggle_whole_word(action, cx);
 504            }
 505        });
 506
 507        registrar.register_handler(|this, action: &ToggleReplace, cx| {
 508            if this.supported_options().replacement {
 509                this.toggle_replace(action, cx);
 510            }
 511        });
 512
 513        registrar.register_handler(|this, _: &ActivateRegexMode, cx| {
 514            if this.supported_options().regex {
 515                this.activate_search_mode(SearchMode::Regex, cx);
 516            }
 517        });
 518
 519        registrar.register_handler(|this, _: &ActivateTextMode, cx| {
 520            this.activate_search_mode(SearchMode::Text, cx);
 521        });
 522
 523        registrar.register_handler(|this, action: &CycleMode, cx| {
 524            if this.supported_options().regex {
 525                // If regex is not supported then search has just one mode (text) - in that case there's no point in supporting
 526                // cycling.
 527                this.cycle_mode(action, cx)
 528            }
 529        });
 530
 531        registrar.register_handler(|this, action: &SelectNextMatch, cx| {
 532            this.select_next_match(action, cx);
 533        });
 534        registrar.register_handler(|this, action: &SelectPrevMatch, cx| {
 535            this.select_prev_match(action, cx);
 536        });
 537        registrar.register_handler(|this, action: &SelectAllMatches, cx| {
 538            this.select_all_matches(action, cx);
 539        });
 540        registrar.register_handler(|this, _: &editor::Cancel, cx| {
 541            if !this.dismissed {
 542                this.dismiss(&Dismiss, cx);
 543                return;
 544            }
 545            cx.propagate();
 546        });
 547        registrar.register_handler(|this, deploy, cx| {
 548            this.deploy(deploy, cx);
 549        })
 550    }
 551    fn register(workspace: &mut Workspace) {
 552        Self::register_inner(workspace);
 553    }
 554    pub fn new(cx: &mut ViewContext<Self>) -> Self {
 555        let query_editor = cx.new_view(|cx| Editor::single_line(cx));
 556        cx.subscribe(&query_editor, Self::on_query_editor_event)
 557            .detach();
 558        let replacement_editor = cx.new_view(|cx| Editor::single_line(cx));
 559        cx.subscribe(&replacement_editor, Self::on_query_editor_event)
 560            .detach();
 561        Self {
 562            query_editor,
 563            replacement_editor,
 564            active_searchable_item: None,
 565            active_searchable_item_subscription: None,
 566            active_match_index: None,
 567            searchable_items_with_matches: Default::default(),
 568            default_options: SearchOptions::NONE,
 569            search_options: SearchOptions::NONE,
 570            pending_search: None,
 571            query_contains_error: false,
 572            dismissed: true,
 573            search_history: SearchHistory::default(),
 574            current_mode: SearchMode::default(),
 575            active_search: None,
 576            replace_enabled: false,
 577        }
 578    }
 579
 580    pub fn is_dismissed(&self) -> bool {
 581        self.dismissed
 582    }
 583
 584    pub fn dismiss(&mut self, _: &Dismiss, cx: &mut ViewContext<Self>) {
 585        self.dismissed = true;
 586        for searchable_item in self.searchable_items_with_matches.keys() {
 587            if let Some(searchable_item) =
 588                WeakSearchableItemHandle::upgrade(searchable_item.as_ref(), cx)
 589            {
 590                searchable_item.clear_matches(cx);
 591            }
 592        }
 593        if let Some(active_editor) = self.active_searchable_item.as_ref() {
 594            let handle = active_editor.focus_handle(cx);
 595            cx.focus(&handle);
 596        }
 597        cx.emit(Event::UpdateLocation);
 598        cx.emit(ToolbarItemEvent::ChangeLocation(
 599            ToolbarItemLocation::Hidden,
 600        ));
 601        cx.notify();
 602    }
 603
 604    pub fn deploy(&mut self, deploy: &Deploy, cx: &mut ViewContext<Self>) -> bool {
 605        if self.show(cx) {
 606            self.search_suggested(cx);
 607            if deploy.focus {
 608                self.select_query(cx);
 609                let handle = self.query_editor.focus_handle(cx);
 610                cx.focus(&handle);
 611            }
 612            return true;
 613        }
 614
 615        false
 616    }
 617
 618    pub fn toggle(&mut self, action: &Deploy, cx: &mut ViewContext<Self>) {
 619        if self.is_dismissed() {
 620            self.deploy(action, cx);
 621        } else {
 622            self.dismiss(&Dismiss, cx);
 623        }
 624    }
 625
 626    pub fn show(&mut self, cx: &mut ViewContext<Self>) -> bool {
 627        if self.active_searchable_item.is_none() {
 628            return false;
 629        }
 630        self.dismissed = false;
 631        cx.notify();
 632        cx.emit(Event::UpdateLocation);
 633        cx.emit(ToolbarItemEvent::ChangeLocation(
 634            ToolbarItemLocation::Secondary,
 635        ));
 636        true
 637    }
 638
 639    fn supported_options(&self) -> workspace::searchable::SearchOptions {
 640        self.active_searchable_item
 641            .as_deref()
 642            .map(SearchableItemHandle::supported_options)
 643            .unwrap_or_default()
 644    }
 645    pub fn search_suggested(&mut self, cx: &mut ViewContext<Self>) {
 646        let search = self
 647            .query_suggestion(cx)
 648            .map(|suggestion| self.search(&suggestion, Some(self.default_options), cx));
 649
 650        if let Some(search) = search {
 651            cx.spawn(|this, mut cx| async move {
 652                search.await?;
 653                this.update(&mut cx, |this, cx| this.activate_current_match(cx))
 654            })
 655            .detach_and_log_err(cx);
 656        }
 657    }
 658
 659    pub fn activate_current_match(&mut self, cx: &mut ViewContext<Self>) {
 660        if let Some(match_ix) = self.active_match_index {
 661            if let Some(active_searchable_item) = self.active_searchable_item.as_ref() {
 662                if let Some(matches) = self
 663                    .searchable_items_with_matches
 664                    .get(&active_searchable_item.downgrade())
 665                {
 666                    active_searchable_item.activate_match(match_ix, matches, cx)
 667                }
 668            }
 669        }
 670    }
 671
 672    pub fn select_query(&mut self, cx: &mut ViewContext<Self>) {
 673        self.query_editor.update(cx, |query_editor, cx| {
 674            query_editor.select_all(&Default::default(), cx);
 675        });
 676    }
 677
 678    pub fn query(&self, cx: &WindowContext) -> String {
 679        self.query_editor.read(cx).text(cx)
 680    }
 681    pub fn replacement(&self, cx: &WindowContext) -> String {
 682        self.replacement_editor.read(cx).text(cx)
 683    }
 684    pub fn query_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<String> {
 685        self.active_searchable_item
 686            .as_ref()
 687            .map(|searchable_item| searchable_item.query_suggestion(cx))
 688            .filter(|suggestion| !suggestion.is_empty())
 689    }
 690
 691    pub fn set_replacement(&mut self, replacement: Option<&str>, cx: &mut ViewContext<Self>) {
 692        if replacement.is_none() {
 693            self.replace_enabled = false;
 694            return;
 695        }
 696        self.replace_enabled = true;
 697        self.replacement_editor
 698            .update(cx, |replacement_editor, cx| {
 699                replacement_editor
 700                    .buffer()
 701                    .update(cx, |replacement_buffer, cx| {
 702                        let len = replacement_buffer.len(cx);
 703                        replacement_buffer.edit([(0..len, replacement.unwrap())], None, cx);
 704                    });
 705            });
 706    }
 707
 708    pub fn search(
 709        &mut self,
 710        query: &str,
 711        options: Option<SearchOptions>,
 712        cx: &mut ViewContext<Self>,
 713    ) -> oneshot::Receiver<()> {
 714        let options = options.unwrap_or(self.default_options);
 715        if query != self.query(cx) || self.search_options != options {
 716            self.query_editor.update(cx, |query_editor, cx| {
 717                query_editor.buffer().update(cx, |query_buffer, cx| {
 718                    let len = query_buffer.len(cx);
 719                    query_buffer.edit([(0..len, query)], None, cx);
 720                });
 721            });
 722            self.search_options = options;
 723            self.query_contains_error = false;
 724            self.clear_matches(cx);
 725            cx.notify();
 726        }
 727        self.update_matches(cx)
 728    }
 729
 730    fn render_search_option_button(
 731        &self,
 732        option: SearchOptions,
 733        action: impl Fn(&ClickEvent, &mut WindowContext) + 'static,
 734    ) -> impl IntoElement {
 735        let is_active = self.search_options.contains(option);
 736        option.as_button(is_active, action)
 737    }
 738    pub fn activate_search_mode(&mut self, mode: SearchMode, cx: &mut ViewContext<Self>) {
 739        assert_ne!(
 740            mode,
 741            SearchMode::Semantic,
 742            "Semantic search is not supported in buffer search"
 743        );
 744        if mode == self.current_mode {
 745            return;
 746        }
 747        self.current_mode = mode;
 748        let _ = self.update_matches(cx);
 749        cx.notify();
 750    }
 751
 752    pub fn focus_editor(&mut self, _: &FocusEditor, cx: &mut ViewContext<Self>) {
 753        if let Some(active_editor) = self.active_searchable_item.as_ref() {
 754            let handle = active_editor.focus_handle(cx);
 755            cx.focus(&handle);
 756        }
 757    }
 758
 759    fn toggle_search_option(&mut self, search_option: SearchOptions, cx: &mut ViewContext<Self>) {
 760        self.search_options.toggle(search_option);
 761        self.default_options = self.search_options;
 762        let _ = self.update_matches(cx);
 763        cx.notify();
 764    }
 765
 766    pub fn set_search_options(
 767        &mut self,
 768        search_options: SearchOptions,
 769        cx: &mut ViewContext<Self>,
 770    ) {
 771        self.search_options = search_options;
 772        cx.notify();
 773    }
 774
 775    fn select_next_match(&mut self, _: &SelectNextMatch, cx: &mut ViewContext<Self>) {
 776        self.select_match(Direction::Next, 1, cx);
 777    }
 778
 779    fn select_prev_match(&mut self, _: &SelectPrevMatch, cx: &mut ViewContext<Self>) {
 780        self.select_match(Direction::Prev, 1, cx);
 781    }
 782
 783    fn select_all_matches(&mut self, _: &SelectAllMatches, cx: &mut ViewContext<Self>) {
 784        if !self.dismissed && self.active_match_index.is_some() {
 785            if let Some(searchable_item) = self.active_searchable_item.as_ref() {
 786                if let Some(matches) = self
 787                    .searchable_items_with_matches
 788                    .get(&searchable_item.downgrade())
 789                {
 790                    searchable_item.select_matches(matches, cx);
 791                    self.focus_editor(&FocusEditor, cx);
 792                }
 793            }
 794        }
 795    }
 796
 797    pub fn select_match(&mut self, direction: Direction, count: usize, cx: &mut ViewContext<Self>) {
 798        if let Some(index) = self.active_match_index {
 799            if let Some(searchable_item) = self.active_searchable_item.as_ref() {
 800                if let Some(matches) = self
 801                    .searchable_items_with_matches
 802                    .get(&searchable_item.downgrade())
 803                {
 804                    let new_match_index = searchable_item
 805                        .match_index_for_direction(matches, index, direction, count, cx);
 806
 807                    searchable_item.update_matches(matches, cx);
 808                    searchable_item.activate_match(new_match_index, matches, cx);
 809                }
 810            }
 811        }
 812    }
 813
 814    pub fn select_last_match(&mut self, cx: &mut ViewContext<Self>) {
 815        if let Some(searchable_item) = self.active_searchable_item.as_ref() {
 816            if let Some(matches) = self
 817                .searchable_items_with_matches
 818                .get(&searchable_item.downgrade())
 819            {
 820                if matches.len() == 0 {
 821                    return;
 822                }
 823                let new_match_index = matches.len() - 1;
 824                searchable_item.update_matches(matches, cx);
 825                searchable_item.activate_match(new_match_index, matches, cx);
 826            }
 827        }
 828    }
 829
 830    fn on_query_editor_event(
 831        &mut self,
 832        _: View<Editor>,
 833        event: &editor::EditorEvent,
 834        cx: &mut ViewContext<Self>,
 835    ) {
 836        if let editor::EditorEvent::Edited { .. } = event {
 837            self.query_contains_error = false;
 838            self.clear_matches(cx);
 839            let search = self.update_matches(cx);
 840            cx.spawn(|this, mut cx| async move {
 841                search.await?;
 842                this.update(&mut cx, |this, cx| this.activate_current_match(cx))
 843            })
 844            .detach_and_log_err(cx);
 845        }
 846    }
 847
 848    fn on_active_searchable_item_event(&mut self, event: &SearchEvent, cx: &mut ViewContext<Self>) {
 849        match event {
 850            SearchEvent::MatchesInvalidated => {
 851                let _ = self.update_matches(cx);
 852            }
 853            SearchEvent::ActiveMatchChanged => self.update_match_index(cx),
 854        }
 855    }
 856
 857    fn toggle_case_sensitive(&mut self, _: &ToggleCaseSensitive, cx: &mut ViewContext<Self>) {
 858        self.toggle_search_option(SearchOptions::CASE_SENSITIVE, cx)
 859    }
 860    fn toggle_whole_word(&mut self, _: &ToggleWholeWord, cx: &mut ViewContext<Self>) {
 861        self.toggle_search_option(SearchOptions::WHOLE_WORD, cx)
 862    }
 863    fn clear_matches(&mut self, cx: &mut ViewContext<Self>) {
 864        let mut active_item_matches = None;
 865        for (searchable_item, matches) in self.searchable_items_with_matches.drain() {
 866            if let Some(searchable_item) =
 867                WeakSearchableItemHandle::upgrade(searchable_item.as_ref(), cx)
 868            {
 869                if Some(&searchable_item) == self.active_searchable_item.as_ref() {
 870                    active_item_matches = Some((searchable_item.downgrade(), matches));
 871                } else {
 872                    searchable_item.clear_matches(cx);
 873                }
 874            }
 875        }
 876
 877        self.searchable_items_with_matches
 878            .extend(active_item_matches);
 879    }
 880
 881    fn update_matches(&mut self, cx: &mut ViewContext<Self>) -> oneshot::Receiver<()> {
 882        let (done_tx, done_rx) = oneshot::channel();
 883        let query = self.query(cx);
 884        self.pending_search.take();
 885
 886        if let Some(active_searchable_item) = self.active_searchable_item.as_ref() {
 887            if query.is_empty() {
 888                self.active_match_index.take();
 889                active_searchable_item.clear_matches(cx);
 890                let _ = done_tx.send(());
 891                cx.notify();
 892            } else {
 893                let query: Arc<_> = if self.current_mode == SearchMode::Regex {
 894                    match SearchQuery::regex(
 895                        query,
 896                        self.search_options.contains(SearchOptions::WHOLE_WORD),
 897                        self.search_options.contains(SearchOptions::CASE_SENSITIVE),
 898                        false,
 899                        Vec::new(),
 900                        Vec::new(),
 901                    ) {
 902                        Ok(query) => query.with_replacement(self.replacement(cx)),
 903                        Err(_) => {
 904                            self.query_contains_error = true;
 905                            self.active_match_index = None;
 906                            cx.notify();
 907                            return done_rx;
 908                        }
 909                    }
 910                } else {
 911                    match SearchQuery::text(
 912                        query,
 913                        self.search_options.contains(SearchOptions::WHOLE_WORD),
 914                        self.search_options.contains(SearchOptions::CASE_SENSITIVE),
 915                        false,
 916                        Vec::new(),
 917                        Vec::new(),
 918                    ) {
 919                        Ok(query) => query.with_replacement(self.replacement(cx)),
 920                        Err(_) => {
 921                            self.query_contains_error = true;
 922                            self.active_match_index = None;
 923                            cx.notify();
 924                            return done_rx;
 925                        }
 926                    }
 927                }
 928                .into();
 929                self.active_search = Some(query.clone());
 930                let query_text = query.as_str().to_string();
 931
 932                let matches = active_searchable_item.find_matches(query, cx);
 933
 934                let active_searchable_item = active_searchable_item.downgrade();
 935                self.pending_search = Some(cx.spawn(|this, mut cx| async move {
 936                    let matches = matches.await;
 937
 938                    this.update(&mut cx, |this, cx| {
 939                        if let Some(active_searchable_item) =
 940                            WeakSearchableItemHandle::upgrade(active_searchable_item.as_ref(), cx)
 941                        {
 942                            this.searchable_items_with_matches
 943                                .insert(active_searchable_item.downgrade(), matches);
 944
 945                            this.update_match_index(cx);
 946                            this.search_history.add(query_text);
 947                            if !this.dismissed {
 948                                let matches = this
 949                                    .searchable_items_with_matches
 950                                    .get(&active_searchable_item.downgrade())
 951                                    .unwrap();
 952                                active_searchable_item.update_matches(matches, cx);
 953                                let _ = done_tx.send(());
 954                            }
 955                            cx.notify();
 956                        }
 957                    })
 958                    .log_err();
 959                }));
 960            }
 961        }
 962        done_rx
 963    }
 964
 965    fn update_match_index(&mut self, cx: &mut ViewContext<Self>) {
 966        let new_index = self
 967            .active_searchable_item
 968            .as_ref()
 969            .and_then(|searchable_item| {
 970                let matches = self
 971                    .searchable_items_with_matches
 972                    .get(&searchable_item.downgrade())?;
 973                searchable_item.active_match_index(matches, cx)
 974            });
 975        if new_index != self.active_match_index {
 976            self.active_match_index = new_index;
 977            cx.notify();
 978        }
 979    }
 980
 981    fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
 982        if let Some(item) = self.active_searchable_item.as_ref() {
 983            let focus_handle = item.focus_handle(cx);
 984            cx.focus(&focus_handle);
 985            cx.stop_propagation();
 986        }
 987    }
 988
 989    fn next_history_query(&mut self, _: &NextHistoryQuery, cx: &mut ViewContext<Self>) {
 990        if let Some(new_query) = self.search_history.next().map(str::to_string) {
 991            let _ = self.search(&new_query, Some(self.search_options), cx);
 992        } else {
 993            self.search_history.reset_selection();
 994            let _ = self.search("", Some(self.search_options), cx);
 995        }
 996    }
 997
 998    fn previous_history_query(&mut self, _: &PreviousHistoryQuery, cx: &mut ViewContext<Self>) {
 999        if self.query(cx).is_empty() {
1000            if let Some(new_query) = self.search_history.current().map(str::to_string) {
1001                let _ = self.search(&new_query, Some(self.search_options), cx);
1002                return;
1003            }
1004        }
1005
1006        if let Some(new_query) = self.search_history.previous().map(str::to_string) {
1007            let _ = self.search(&new_query, Some(self.search_options), cx);
1008        }
1009    }
1010    fn cycle_mode(&mut self, _: &CycleMode, cx: &mut ViewContext<Self>) {
1011        self.activate_search_mode(next_mode(&self.current_mode, false), cx);
1012    }
1013    fn toggle_replace(&mut self, _: &ToggleReplace, cx: &mut ViewContext<Self>) {
1014        if let Some(_) = &self.active_searchable_item {
1015            self.replace_enabled = !self.replace_enabled;
1016            if !self.replace_enabled {
1017                let handle = self.query_editor.focus_handle(cx);
1018                cx.focus(&handle);
1019            }
1020            cx.notify();
1021        }
1022    }
1023    fn replace_next(&mut self, _: &ReplaceNext, cx: &mut ViewContext<Self>) {
1024        let mut should_propagate = true;
1025        if !self.dismissed && self.active_search.is_some() {
1026            if let Some(searchable_item) = self.active_searchable_item.as_ref() {
1027                if let Some(query) = self.active_search.as_ref() {
1028                    if let Some(matches) = self
1029                        .searchable_items_with_matches
1030                        .get(&searchable_item.downgrade())
1031                    {
1032                        if let Some(active_index) = self.active_match_index {
1033                            let query = query
1034                                .as_ref()
1035                                .clone()
1036                                .with_replacement(self.replacement(cx));
1037                            searchable_item.replace(&matches[active_index], &query, cx);
1038                            self.select_next_match(&SelectNextMatch, cx);
1039                        }
1040                        should_propagate = false;
1041                        self.focus_editor(&FocusEditor, cx);
1042                    }
1043                }
1044            }
1045        }
1046        if !should_propagate {
1047            cx.stop_propagation();
1048        }
1049    }
1050    pub fn replace_all(&mut self, _: &ReplaceAll, cx: &mut ViewContext<Self>) {
1051        if !self.dismissed && self.active_search.is_some() {
1052            if let Some(searchable_item) = self.active_searchable_item.as_ref() {
1053                if let Some(query) = self.active_search.as_ref() {
1054                    if let Some(matches) = self
1055                        .searchable_items_with_matches
1056                        .get(&searchable_item.downgrade())
1057                    {
1058                        let query = query
1059                            .as_ref()
1060                            .clone()
1061                            .with_replacement(self.replacement(cx));
1062                        for m in matches {
1063                            searchable_item.replace(m, &query, cx);
1064                        }
1065                    }
1066                }
1067            }
1068        }
1069    }
1070}
1071
1072#[cfg(test)]
1073mod tests {
1074    use std::ops::Range;
1075
1076    use super::*;
1077    use editor::{DisplayPoint, Editor};
1078    use gpui::{Context, EmptyView, Hsla, TestAppContext, VisualTestContext};
1079    use language::Buffer;
1080    use smol::stream::StreamExt as _;
1081    use unindent::Unindent as _;
1082
1083    fn init_globals(cx: &mut TestAppContext) {
1084        cx.update(|cx| {
1085            let store = settings::SettingsStore::test(cx);
1086            cx.set_global(store);
1087            editor::init(cx);
1088
1089            language::init(cx);
1090            theme::init(theme::LoadThemes::JustBase, cx);
1091        });
1092    }
1093    fn init_test(
1094        cx: &mut TestAppContext,
1095    ) -> (
1096        View<Editor>,
1097        View<BufferSearchBar>,
1098        &mut VisualTestContext<'_>,
1099    ) {
1100        init_globals(cx);
1101        let buffer = cx.new_model(|cx| {
1102            Buffer::new(
1103                0,
1104                cx.entity_id().as_u64(),
1105                r#"
1106                A regular expression (shortened as regex or regexp;[1] also referred to as
1107                rational expression[2][3]) is a sequence of characters that specifies a search
1108                pattern in text. Usually such patterns are used by string-searching algorithms
1109                for "find" or "find and replace" operations on strings, or for input validation.
1110                "#
1111                .unindent(),
1112            )
1113        });
1114        let (_, cx) = cx.add_window_view(|_| EmptyView {});
1115        let editor = cx.new_view(|cx| Editor::for_buffer(buffer.clone(), None, cx));
1116
1117        let search_bar = cx.new_view(|cx| {
1118            let mut search_bar = BufferSearchBar::new(cx);
1119            search_bar.set_active_pane_item(Some(&editor), cx);
1120            search_bar.show(cx);
1121            search_bar
1122        });
1123
1124        (editor, search_bar, cx)
1125    }
1126
1127    #[gpui::test]
1128    async fn test_search_simple(cx: &mut TestAppContext) {
1129        let (editor, search_bar, cx) = init_test(cx);
1130        // todo! osiewicz: these tests asserted on background color as well, that should be brought back.
1131        let display_points_of = |background_highlights: Vec<(Range<DisplayPoint>, Hsla)>| {
1132            background_highlights
1133                .into_iter()
1134                .map(|(range, _)| range)
1135                .collect::<Vec<_>>()
1136        };
1137        // Search for a string that appears with different casing.
1138        // By default, search is case-insensitive.
1139        search_bar
1140            .update(cx, |search_bar, cx| search_bar.search("us", None, cx))
1141            .await
1142            .unwrap();
1143        editor.update(cx, |editor, cx| {
1144            assert_eq!(
1145                display_points_of(editor.all_text_background_highlights(cx)),
1146                &[
1147                    DisplayPoint::new(2, 17)..DisplayPoint::new(2, 19),
1148                    DisplayPoint::new(2, 43)..DisplayPoint::new(2, 45),
1149                ]
1150            );
1151        });
1152
1153        // Switch to a case sensitive search.
1154        search_bar.update(cx, |search_bar, cx| {
1155            search_bar.toggle_search_option(SearchOptions::CASE_SENSITIVE, cx);
1156        });
1157        let mut editor_notifications = cx.notifications(&editor);
1158        editor_notifications.next().await;
1159        editor.update(cx, |editor, cx| {
1160            assert_eq!(
1161                display_points_of(editor.all_text_background_highlights(cx)),
1162                &[DisplayPoint::new(2, 43)..DisplayPoint::new(2, 45),]
1163            );
1164        });
1165
1166        // Search for a string that appears both as a whole word and
1167        // within other words. By default, all results are found.
1168        search_bar
1169            .update(cx, |search_bar, cx| search_bar.search("or", None, cx))
1170            .await
1171            .unwrap();
1172        editor.update(cx, |editor, cx| {
1173            assert_eq!(
1174                display_points_of(editor.all_text_background_highlights(cx)),
1175                &[
1176                    DisplayPoint::new(0, 24)..DisplayPoint::new(0, 26),
1177                    DisplayPoint::new(0, 41)..DisplayPoint::new(0, 43),
1178                    DisplayPoint::new(2, 71)..DisplayPoint::new(2, 73),
1179                    DisplayPoint::new(3, 1)..DisplayPoint::new(3, 3),
1180                    DisplayPoint::new(3, 11)..DisplayPoint::new(3, 13),
1181                    DisplayPoint::new(3, 56)..DisplayPoint::new(3, 58),
1182                    DisplayPoint::new(3, 60)..DisplayPoint::new(3, 62),
1183                ]
1184            );
1185        });
1186
1187        // Switch to a whole word search.
1188        search_bar.update(cx, |search_bar, cx| {
1189            search_bar.toggle_search_option(SearchOptions::WHOLE_WORD, cx);
1190        });
1191        let mut editor_notifications = cx.notifications(&editor);
1192        editor_notifications.next().await;
1193        editor.update(cx, |editor, cx| {
1194            assert_eq!(
1195                display_points_of(editor.all_text_background_highlights(cx)),
1196                &[
1197                    DisplayPoint::new(0, 41)..DisplayPoint::new(0, 43),
1198                    DisplayPoint::new(3, 11)..DisplayPoint::new(3, 13),
1199                    DisplayPoint::new(3, 56)..DisplayPoint::new(3, 58),
1200                ]
1201            );
1202        });
1203
1204        editor.update(cx, |editor, cx| {
1205            editor.change_selections(None, cx, |s| {
1206                s.select_display_ranges([DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)])
1207            });
1208        });
1209        search_bar.update(cx, |search_bar, cx| {
1210            assert_eq!(search_bar.active_match_index, Some(0));
1211            search_bar.select_next_match(&SelectNextMatch, cx);
1212            assert_eq!(
1213                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1214                [DisplayPoint::new(0, 41)..DisplayPoint::new(0, 43)]
1215            );
1216        });
1217        search_bar.update(cx, |search_bar, _| {
1218            assert_eq!(search_bar.active_match_index, Some(0));
1219        });
1220
1221        search_bar.update(cx, |search_bar, cx| {
1222            search_bar.select_next_match(&SelectNextMatch, cx);
1223            assert_eq!(
1224                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1225                [DisplayPoint::new(3, 11)..DisplayPoint::new(3, 13)]
1226            );
1227        });
1228        search_bar.update(cx, |search_bar, _| {
1229            assert_eq!(search_bar.active_match_index, Some(1));
1230        });
1231
1232        search_bar.update(cx, |search_bar, cx| {
1233            search_bar.select_next_match(&SelectNextMatch, cx);
1234            assert_eq!(
1235                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1236                [DisplayPoint::new(3, 56)..DisplayPoint::new(3, 58)]
1237            );
1238        });
1239        search_bar.update(cx, |search_bar, _| {
1240            assert_eq!(search_bar.active_match_index, Some(2));
1241        });
1242
1243        search_bar.update(cx, |search_bar, cx| {
1244            search_bar.select_next_match(&SelectNextMatch, cx);
1245            assert_eq!(
1246                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1247                [DisplayPoint::new(0, 41)..DisplayPoint::new(0, 43)]
1248            );
1249        });
1250        search_bar.update(cx, |search_bar, _| {
1251            assert_eq!(search_bar.active_match_index, Some(0));
1252        });
1253
1254        search_bar.update(cx, |search_bar, cx| {
1255            search_bar.select_prev_match(&SelectPrevMatch, cx);
1256            assert_eq!(
1257                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1258                [DisplayPoint::new(3, 56)..DisplayPoint::new(3, 58)]
1259            );
1260        });
1261        search_bar.update(cx, |search_bar, _| {
1262            assert_eq!(search_bar.active_match_index, Some(2));
1263        });
1264
1265        search_bar.update(cx, |search_bar, cx| {
1266            search_bar.select_prev_match(&SelectPrevMatch, cx);
1267            assert_eq!(
1268                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1269                [DisplayPoint::new(3, 11)..DisplayPoint::new(3, 13)]
1270            );
1271        });
1272        search_bar.update(cx, |search_bar, _| {
1273            assert_eq!(search_bar.active_match_index, Some(1));
1274        });
1275
1276        search_bar.update(cx, |search_bar, cx| {
1277            search_bar.select_prev_match(&SelectPrevMatch, cx);
1278            assert_eq!(
1279                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1280                [DisplayPoint::new(0, 41)..DisplayPoint::new(0, 43)]
1281            );
1282        });
1283        search_bar.update(cx, |search_bar, _| {
1284            assert_eq!(search_bar.active_match_index, Some(0));
1285        });
1286
1287        // Park the cursor in between matches and ensure that going to the previous match selects
1288        // the closest match to the left.
1289        editor.update(cx, |editor, cx| {
1290            editor.change_selections(None, cx, |s| {
1291                s.select_display_ranges([DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)])
1292            });
1293        });
1294        search_bar.update(cx, |search_bar, cx| {
1295            assert_eq!(search_bar.active_match_index, Some(1));
1296            search_bar.select_prev_match(&SelectPrevMatch, cx);
1297            assert_eq!(
1298                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1299                [DisplayPoint::new(0, 41)..DisplayPoint::new(0, 43)]
1300            );
1301        });
1302        search_bar.update(cx, |search_bar, _| {
1303            assert_eq!(search_bar.active_match_index, Some(0));
1304        });
1305
1306        // Park the cursor in between matches and ensure that going to the next match selects the
1307        // closest match to the right.
1308        editor.update(cx, |editor, cx| {
1309            editor.change_selections(None, cx, |s| {
1310                s.select_display_ranges([DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)])
1311            });
1312        });
1313        search_bar.update(cx, |search_bar, cx| {
1314            assert_eq!(search_bar.active_match_index, Some(1));
1315            search_bar.select_next_match(&SelectNextMatch, cx);
1316            assert_eq!(
1317                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1318                [DisplayPoint::new(3, 11)..DisplayPoint::new(3, 13)]
1319            );
1320        });
1321        search_bar.update(cx, |search_bar, _| {
1322            assert_eq!(search_bar.active_match_index, Some(1));
1323        });
1324
1325        // Park the cursor after the last match and ensure that going to the previous match selects
1326        // the last match.
1327        editor.update(cx, |editor, cx| {
1328            editor.change_selections(None, cx, |s| {
1329                s.select_display_ranges([DisplayPoint::new(3, 60)..DisplayPoint::new(3, 60)])
1330            });
1331        });
1332        search_bar.update(cx, |search_bar, cx| {
1333            assert_eq!(search_bar.active_match_index, Some(2));
1334            search_bar.select_prev_match(&SelectPrevMatch, cx);
1335            assert_eq!(
1336                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1337                [DisplayPoint::new(3, 56)..DisplayPoint::new(3, 58)]
1338            );
1339        });
1340        search_bar.update(cx, |search_bar, _| {
1341            assert_eq!(search_bar.active_match_index, Some(2));
1342        });
1343
1344        // Park the cursor after the last match and ensure that going to the next match selects the
1345        // first match.
1346        editor.update(cx, |editor, cx| {
1347            editor.change_selections(None, cx, |s| {
1348                s.select_display_ranges([DisplayPoint::new(3, 60)..DisplayPoint::new(3, 60)])
1349            });
1350        });
1351        search_bar.update(cx, |search_bar, cx| {
1352            assert_eq!(search_bar.active_match_index, Some(2));
1353            search_bar.select_next_match(&SelectNextMatch, cx);
1354            assert_eq!(
1355                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1356                [DisplayPoint::new(0, 41)..DisplayPoint::new(0, 43)]
1357            );
1358        });
1359        search_bar.update(cx, |search_bar, _| {
1360            assert_eq!(search_bar.active_match_index, Some(0));
1361        });
1362
1363        // Park the cursor before the first match and ensure that going to the previous match
1364        // selects the last match.
1365        editor.update(cx, |editor, cx| {
1366            editor.change_selections(None, cx, |s| {
1367                s.select_display_ranges([DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)])
1368            });
1369        });
1370        search_bar.update(cx, |search_bar, cx| {
1371            assert_eq!(search_bar.active_match_index, Some(0));
1372            search_bar.select_prev_match(&SelectPrevMatch, cx);
1373            assert_eq!(
1374                editor.update(cx, |editor, cx| editor.selections.display_ranges(cx)),
1375                [DisplayPoint::new(3, 56)..DisplayPoint::new(3, 58)]
1376            );
1377        });
1378        search_bar.update(cx, |search_bar, _| {
1379            assert_eq!(search_bar.active_match_index, Some(2));
1380        });
1381    }
1382
1383    #[gpui::test]
1384    async fn test_search_option_handling(cx: &mut TestAppContext) {
1385        let (editor, search_bar, cx) = init_test(cx);
1386
1387        // show with options should make current search case sensitive
1388        search_bar
1389            .update(cx, |search_bar, cx| {
1390                search_bar.show(cx);
1391                search_bar.search("us", Some(SearchOptions::CASE_SENSITIVE), cx)
1392            })
1393            .await
1394            .unwrap();
1395        // todo! osiewicz: these tests previously asserted on background color highlights; that should be introduced back.
1396        let display_points_of = |background_highlights: Vec<(Range<DisplayPoint>, Hsla)>| {
1397            background_highlights
1398                .into_iter()
1399                .map(|(range, _)| range)
1400                .collect::<Vec<_>>()
1401        };
1402        editor.update(cx, |editor, cx| {
1403            assert_eq!(
1404                display_points_of(editor.all_text_background_highlights(cx)),
1405                &[DisplayPoint::new(2, 43)..DisplayPoint::new(2, 45),]
1406            );
1407        });
1408
1409        // search_suggested should restore default options
1410        search_bar.update(cx, |search_bar, cx| {
1411            search_bar.search_suggested(cx);
1412            assert_eq!(search_bar.search_options, SearchOptions::NONE)
1413        });
1414
1415        // toggling a search option should update the defaults
1416        search_bar
1417            .update(cx, |search_bar, cx| {
1418                search_bar.search("regex", Some(SearchOptions::CASE_SENSITIVE), cx)
1419            })
1420            .await
1421            .unwrap();
1422        search_bar.update(cx, |search_bar, cx| {
1423            search_bar.toggle_search_option(SearchOptions::WHOLE_WORD, cx)
1424        });
1425        let mut editor_notifications = cx.notifications(&editor);
1426        editor_notifications.next().await;
1427        editor.update(cx, |editor, cx| {
1428            assert_eq!(
1429                display_points_of(editor.all_text_background_highlights(cx)),
1430                &[DisplayPoint::new(0, 35)..DisplayPoint::new(0, 40),]
1431            );
1432        });
1433
1434        // defaults should still include whole word
1435        search_bar.update(cx, |search_bar, cx| {
1436            search_bar.search_suggested(cx);
1437            assert_eq!(
1438                search_bar.search_options,
1439                SearchOptions::CASE_SENSITIVE | SearchOptions::WHOLE_WORD
1440            )
1441        });
1442    }
1443
1444    #[gpui::test]
1445    async fn test_search_select_all_matches(cx: &mut TestAppContext) {
1446        init_globals(cx);
1447        let buffer_text = r#"
1448        A regular expression (shortened as regex or regexp;[1] also referred to as
1449        rational expression[2][3]) is a sequence of characters that specifies a search
1450        pattern in text. Usually such patterns are used by string-searching algorithms
1451        for "find" or "find and replace" operations on strings, or for input validation.
1452        "#
1453        .unindent();
1454        let expected_query_matches_count = buffer_text
1455            .chars()
1456            .filter(|c| c.to_ascii_lowercase() == 'a')
1457            .count();
1458        assert!(
1459            expected_query_matches_count > 1,
1460            "Should pick a query with multiple results"
1461        );
1462        let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), buffer_text));
1463        let window = cx.add_window(|_| EmptyView {});
1464
1465        let editor = window.build_view(cx, |cx| Editor::for_buffer(buffer.clone(), None, cx));
1466
1467        let search_bar = window.build_view(cx, |cx| {
1468            let mut search_bar = BufferSearchBar::new(cx);
1469            search_bar.set_active_pane_item(Some(&editor), cx);
1470            search_bar.show(cx);
1471            search_bar
1472        });
1473
1474        window
1475            .update(cx, |_, cx| {
1476                search_bar.update(cx, |search_bar, cx| search_bar.search("a", None, cx))
1477            })
1478            .unwrap()
1479            .await
1480            .unwrap();
1481        let initial_selections = window
1482            .update(cx, |_, cx| {
1483                search_bar.update(cx, |search_bar, cx| {
1484                    let handle = search_bar.query_editor.focus_handle(cx);
1485                    cx.focus(&handle);
1486                    search_bar.activate_current_match(cx);
1487                });
1488                assert!(
1489                    !editor.read(cx).is_focused(cx),
1490                    "Initially, the editor should not be focused"
1491                );
1492                let initial_selections = editor.update(cx, |editor, cx| {
1493                    let initial_selections = editor.selections.display_ranges(cx);
1494                    assert_eq!(
1495                        initial_selections.len(), 1,
1496                        "Expected to have only one selection before adding carets to all matches, but got: {initial_selections:?}",
1497                    );
1498                    initial_selections
1499                });
1500                search_bar.update(cx, |search_bar, cx| {
1501                    assert_eq!(search_bar.active_match_index, Some(0));
1502                    let handle = search_bar.query_editor.focus_handle(cx);
1503                    cx.focus(&handle);
1504                    search_bar.select_all_matches(&SelectAllMatches, cx);
1505                });
1506                assert!(
1507                    editor.read(cx).is_focused(cx),
1508                    "Should focus editor after successful SelectAllMatches"
1509                );
1510                search_bar.update(cx, |search_bar, cx| {
1511                    let all_selections =
1512                        editor.update(cx, |editor, cx| editor.selections.display_ranges(cx));
1513                    assert_eq!(
1514                        all_selections.len(),
1515                        expected_query_matches_count,
1516                        "Should select all `a` characters in the buffer, but got: {all_selections:?}"
1517                    );
1518                    assert_eq!(
1519                        search_bar.active_match_index,
1520                        Some(0),
1521                        "Match index should not change after selecting all matches"
1522                    );
1523                });
1524
1525                search_bar.update(cx, |this, cx| this.select_next_match(&SelectNextMatch, cx));
1526                initial_selections
1527            }).unwrap();
1528
1529        window
1530            .update(cx, |_, cx| {
1531                assert!(
1532                    editor.read(cx).is_focused(cx),
1533                    "Should still have editor focused after SelectNextMatch"
1534                );
1535                search_bar.update(cx, |search_bar, cx| {
1536                    let all_selections =
1537                        editor.update(cx, |editor, cx| editor.selections.display_ranges(cx));
1538                    assert_eq!(
1539                        all_selections.len(),
1540                        1,
1541                        "On next match, should deselect items and select the next match"
1542                    );
1543                    assert_ne!(
1544                        all_selections, initial_selections,
1545                        "Next match should be different from the first selection"
1546                    );
1547                    assert_eq!(
1548                        search_bar.active_match_index,
1549                        Some(1),
1550                        "Match index should be updated to the next one"
1551                    );
1552                    let handle = search_bar.query_editor.focus_handle(cx);
1553                    cx.focus(&handle);
1554                    search_bar.select_all_matches(&SelectAllMatches, cx);
1555                });
1556            })
1557            .unwrap();
1558        window
1559            .update(cx, |_, cx| {
1560                assert!(
1561                    editor.read(cx).is_focused(cx),
1562                    "Should focus editor after successful SelectAllMatches"
1563                );
1564                search_bar.update(cx, |search_bar, cx| {
1565                    let all_selections =
1566                        editor.update(cx, |editor, cx| editor.selections.display_ranges(cx));
1567                    assert_eq!(
1568                    all_selections.len(),
1569                    expected_query_matches_count,
1570                    "Should select all `a` characters in the buffer, but got: {all_selections:?}"
1571                );
1572                    assert_eq!(
1573                        search_bar.active_match_index,
1574                        Some(1),
1575                        "Match index should not change after selecting all matches"
1576                    );
1577                });
1578                search_bar.update(cx, |search_bar, cx| {
1579                    search_bar.select_prev_match(&SelectPrevMatch, cx);
1580                });
1581            })
1582            .unwrap();
1583        let last_match_selections = window
1584            .update(cx, |_, cx| {
1585                assert!(
1586                    editor.read(cx).is_focused(&cx),
1587                    "Should still have editor focused after SelectPrevMatch"
1588                );
1589
1590                search_bar.update(cx, |search_bar, cx| {
1591                    let all_selections =
1592                        editor.update(cx, |editor, cx| editor.selections.display_ranges(cx));
1593                    assert_eq!(
1594                        all_selections.len(),
1595                        1,
1596                        "On previous match, should deselect items and select the previous item"
1597                    );
1598                    assert_eq!(
1599                        all_selections, initial_selections,
1600                        "Previous match should be the same as the first selection"
1601                    );
1602                    assert_eq!(
1603                        search_bar.active_match_index,
1604                        Some(0),
1605                        "Match index should be updated to the previous one"
1606                    );
1607                    all_selections
1608                })
1609            })
1610            .unwrap();
1611
1612        window
1613            .update(cx, |_, cx| {
1614                search_bar.update(cx, |search_bar, cx| {
1615                    let handle = search_bar.query_editor.focus_handle(cx);
1616                    cx.focus(&handle);
1617                    search_bar.search("abas_nonexistent_match", None, cx)
1618                })
1619            })
1620            .unwrap()
1621            .await
1622            .unwrap();
1623        window
1624            .update(cx, |_, cx| {
1625                search_bar.update(cx, |search_bar, cx| {
1626                    search_bar.select_all_matches(&SelectAllMatches, cx);
1627                });
1628                assert!(
1629                    editor.update(cx, |this, cx| !this.is_focused(cx.window_context())),
1630                    "Should not switch focus to editor if SelectAllMatches does not find any matches"
1631                );
1632                search_bar.update(cx, |search_bar, cx| {
1633                    let all_selections =
1634                        editor.update(cx, |editor, cx| editor.selections.display_ranges(cx));
1635                    assert_eq!(
1636                        all_selections, last_match_selections,
1637                        "Should not select anything new if there are no matches"
1638                    );
1639                    assert!(
1640                        search_bar.active_match_index.is_none(),
1641                        "For no matches, there should be no active match index"
1642                    );
1643                });
1644            })
1645            .unwrap();
1646    }
1647
1648    #[gpui::test]
1649    async fn test_search_query_history(cx: &mut TestAppContext) {
1650        //crate::project_search::tests::init_test(cx);
1651        init_globals(cx);
1652        let buffer_text = r#"
1653        A regular expression (shortened as regex or regexp;[1] also referred to as
1654        rational expression[2][3]) is a sequence of characters that specifies a search
1655        pattern in text. Usually such patterns are used by string-searching algorithms
1656        for "find" or "find and replace" operations on strings, or for input validation.
1657        "#
1658        .unindent();
1659        let buffer = cx.new_model(|cx| Buffer::new(0, cx.entity_id().as_u64(), buffer_text));
1660        let (_, cx) = cx.add_window_view(|_| EmptyView {});
1661
1662        let editor = cx.new_view(|cx| Editor::for_buffer(buffer.clone(), None, cx));
1663
1664        let search_bar = cx.new_view(|cx| {
1665            let mut search_bar = BufferSearchBar::new(cx);
1666            search_bar.set_active_pane_item(Some(&editor), cx);
1667            search_bar.show(cx);
1668            search_bar
1669        });
1670
1671        // Add 3 search items into the history.
1672        search_bar
1673            .update(cx, |search_bar, cx| search_bar.search("a", None, cx))
1674            .await
1675            .unwrap();
1676        search_bar
1677            .update(cx, |search_bar, cx| search_bar.search("b", None, cx))
1678            .await
1679            .unwrap();
1680        search_bar
1681            .update(cx, |search_bar, cx| {
1682                search_bar.search("c", Some(SearchOptions::CASE_SENSITIVE), cx)
1683            })
1684            .await
1685            .unwrap();
1686        // Ensure that the latest search is active.
1687        search_bar.update(cx, |search_bar, cx| {
1688            assert_eq!(search_bar.query(cx), "c");
1689            assert_eq!(search_bar.search_options, SearchOptions::CASE_SENSITIVE);
1690        });
1691
1692        // Next history query after the latest should set the query to the empty string.
1693        search_bar.update(cx, |search_bar, cx| {
1694            search_bar.next_history_query(&NextHistoryQuery, cx);
1695        });
1696        search_bar.update(cx, |search_bar, cx| {
1697            assert_eq!(search_bar.query(cx), "");
1698            assert_eq!(search_bar.search_options, SearchOptions::CASE_SENSITIVE);
1699        });
1700        search_bar.update(cx, |search_bar, cx| {
1701            search_bar.next_history_query(&NextHistoryQuery, cx);
1702        });
1703        search_bar.update(cx, |search_bar, cx| {
1704            assert_eq!(search_bar.query(cx), "");
1705            assert_eq!(search_bar.search_options, SearchOptions::CASE_SENSITIVE);
1706        });
1707
1708        // First previous query for empty current query should set the query to the latest.
1709        search_bar.update(cx, |search_bar, cx| {
1710            search_bar.previous_history_query(&PreviousHistoryQuery, cx);
1711        });
1712        search_bar.update(cx, |search_bar, cx| {
1713            assert_eq!(search_bar.query(cx), "c");
1714            assert_eq!(search_bar.search_options, SearchOptions::CASE_SENSITIVE);
1715        });
1716
1717        // Further previous items should go over the history in reverse order.
1718        search_bar.update(cx, |search_bar, cx| {
1719            search_bar.previous_history_query(&PreviousHistoryQuery, cx);
1720        });
1721        search_bar.update(cx, |search_bar, cx| {
1722            assert_eq!(search_bar.query(cx), "b");
1723            assert_eq!(search_bar.search_options, SearchOptions::CASE_SENSITIVE);
1724        });
1725
1726        // Previous items should never go behind the first history item.
1727        search_bar.update(cx, |search_bar, cx| {
1728            search_bar.previous_history_query(&PreviousHistoryQuery, cx);
1729        });
1730        search_bar.update(cx, |search_bar, cx| {
1731            assert_eq!(search_bar.query(cx), "a");
1732            assert_eq!(search_bar.search_options, SearchOptions::CASE_SENSITIVE);
1733        });
1734        search_bar.update(cx, |search_bar, cx| {
1735            search_bar.previous_history_query(&PreviousHistoryQuery, cx);
1736        });
1737        search_bar.update(cx, |search_bar, cx| {
1738            assert_eq!(search_bar.query(cx), "a");
1739            assert_eq!(search_bar.search_options, SearchOptions::CASE_SENSITIVE);
1740        });
1741
1742        // Next items should go over the history in the original order.
1743        search_bar.update(cx, |search_bar, cx| {
1744            search_bar.next_history_query(&NextHistoryQuery, cx);
1745        });
1746        search_bar.update(cx, |search_bar, cx| {
1747            assert_eq!(search_bar.query(cx), "b");
1748            assert_eq!(search_bar.search_options, SearchOptions::CASE_SENSITIVE);
1749        });
1750
1751        search_bar
1752            .update(cx, |search_bar, cx| search_bar.search("ba", None, cx))
1753            .await
1754            .unwrap();
1755        search_bar.update(cx, |search_bar, cx| {
1756            assert_eq!(search_bar.query(cx), "ba");
1757            assert_eq!(search_bar.search_options, SearchOptions::NONE);
1758        });
1759
1760        // New search input should add another entry to history and move the selection to the end of the history.
1761        search_bar.update(cx, |search_bar, cx| {
1762            search_bar.previous_history_query(&PreviousHistoryQuery, cx);
1763        });
1764        search_bar.update(cx, |search_bar, cx| {
1765            assert_eq!(search_bar.query(cx), "c");
1766            assert_eq!(search_bar.search_options, SearchOptions::NONE);
1767        });
1768        search_bar.update(cx, |search_bar, cx| {
1769            search_bar.previous_history_query(&PreviousHistoryQuery, cx);
1770        });
1771        search_bar.update(cx, |search_bar, cx| {
1772            assert_eq!(search_bar.query(cx), "b");
1773            assert_eq!(search_bar.search_options, SearchOptions::NONE);
1774        });
1775        search_bar.update(cx, |search_bar, cx| {
1776            search_bar.next_history_query(&NextHistoryQuery, cx);
1777        });
1778        search_bar.update(cx, |search_bar, cx| {
1779            assert_eq!(search_bar.query(cx), "c");
1780            assert_eq!(search_bar.search_options, SearchOptions::NONE);
1781        });
1782        search_bar.update(cx, |search_bar, cx| {
1783            search_bar.next_history_query(&NextHistoryQuery, cx);
1784        });
1785        search_bar.update(cx, |search_bar, cx| {
1786            assert_eq!(search_bar.query(cx), "ba");
1787            assert_eq!(search_bar.search_options, SearchOptions::NONE);
1788        });
1789        search_bar.update(cx, |search_bar, cx| {
1790            search_bar.next_history_query(&NextHistoryQuery, cx);
1791        });
1792        search_bar.update(cx, |search_bar, cx| {
1793            assert_eq!(search_bar.query(cx), "");
1794            assert_eq!(search_bar.search_options, SearchOptions::NONE);
1795        });
1796    }
1797
1798    #[gpui::test]
1799    async fn test_replace_simple(cx: &mut TestAppContext) {
1800        let (editor, search_bar, cx) = init_test(cx);
1801
1802        search_bar
1803            .update(cx, |search_bar, cx| {
1804                search_bar.search("expression", None, cx)
1805            })
1806            .await
1807            .unwrap();
1808
1809        search_bar.update(cx, |search_bar, cx| {
1810            search_bar.replacement_editor.update(cx, |editor, cx| {
1811                // We use $1 here as initially we should be in Text mode, where `$1` should be treated literally.
1812                editor.set_text("expr$1", cx);
1813            });
1814            search_bar.replace_all(&ReplaceAll, cx)
1815        });
1816        assert_eq!(
1817            editor.update(cx, |this, cx| { this.text(cx) }),
1818            r#"
1819        A regular expr$1 (shortened as regex or regexp;[1] also referred to as
1820        rational expr$1[2][3]) is a sequence of characters that specifies a search
1821        pattern in text. Usually such patterns are used by string-searching algorithms
1822        for "find" or "find and replace" operations on strings, or for input validation.
1823        "#
1824            .unindent()
1825        );
1826
1827        // Search for word boundaries and replace just a single one.
1828        search_bar
1829            .update(cx, |search_bar, cx| {
1830                search_bar.search("or", Some(SearchOptions::WHOLE_WORD), cx)
1831            })
1832            .await
1833            .unwrap();
1834
1835        search_bar.update(cx, |search_bar, cx| {
1836            search_bar.replacement_editor.update(cx, |editor, cx| {
1837                editor.set_text("banana", cx);
1838            });
1839            search_bar.replace_next(&ReplaceNext, cx)
1840        });
1841        // Notice how the first or in the text (shORtened) is not replaced. Neither are the remaining hits of `or` in the text.
1842        assert_eq!(
1843            editor.update(cx, |this, cx| { this.text(cx) }),
1844            r#"
1845        A regular expr$1 (shortened as regex banana regexp;[1] also referred to as
1846        rational expr$1[2][3]) is a sequence of characters that specifies a search
1847        pattern in text. Usually such patterns are used by string-searching algorithms
1848        for "find" or "find and replace" operations on strings, or for input validation.
1849        "#
1850            .unindent()
1851        );
1852        // Let's turn on regex mode.
1853        search_bar
1854            .update(cx, |search_bar, cx| {
1855                search_bar.activate_search_mode(SearchMode::Regex, cx);
1856                search_bar.search("\\[([^\\]]+)\\]", None, cx)
1857            })
1858            .await
1859            .unwrap();
1860        search_bar.update(cx, |search_bar, cx| {
1861            search_bar.replacement_editor.update(cx, |editor, cx| {
1862                editor.set_text("${1}number", cx);
1863            });
1864            search_bar.replace_all(&ReplaceAll, cx)
1865        });
1866        assert_eq!(
1867            editor.update(cx, |this, cx| { this.text(cx) }),
1868            r#"
1869        A regular expr$1 (shortened as regex banana regexp;1number also referred to as
1870        rational expr$12number3number) is a sequence of characters that specifies a search
1871        pattern in text. Usually such patterns are used by string-searching algorithms
1872        for "find" or "find and replace" operations on strings, or for input validation.
1873        "#
1874            .unindent()
1875        );
1876        // Now with a whole-word twist.
1877        search_bar
1878            .update(cx, |search_bar, cx| {
1879                search_bar.activate_search_mode(SearchMode::Regex, cx);
1880                search_bar.search("a\\w+s", Some(SearchOptions::WHOLE_WORD), cx)
1881            })
1882            .await
1883            .unwrap();
1884        search_bar.update(cx, |search_bar, cx| {
1885            search_bar.replacement_editor.update(cx, |editor, cx| {
1886                editor.set_text("things", cx);
1887            });
1888            search_bar.replace_all(&ReplaceAll, cx)
1889        });
1890        // The only word affected by this edit should be `algorithms`, even though there's a bunch
1891        // of words in this text that would match this regex if not for WHOLE_WORD.
1892        assert_eq!(
1893            editor.update(cx, |this, cx| { this.text(cx) }),
1894            r#"
1895        A regular expr$1 (shortened as regex banana regexp;1number also referred to as
1896        rational expr$12number3number) is a sequence of characters that specifies a search
1897        pattern in text. Usually such patterns are used by string-searching things
1898        for "find" or "find and replace" operations on strings, or for input validation.
1899        "#
1900            .unindent()
1901        );
1902    }
1903}