1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18pub mod display_map;
19mod editor_settings;
20mod element;
21mod inlay_hint_cache;
22
23mod debounced_delay;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod inline_completion_provider;
29pub mod items;
30mod mouse_context_menu;
31pub mod movement;
32mod persistence;
33mod rust_analyzer_ext;
34pub mod scroll;
35mod selections_collection;
36
37#[cfg(test)]
38mod editor_tests;
39#[cfg(any(test, feature = "test-support"))]
40pub mod test;
41use ::git::diff::{DiffHunk, DiffHunkStatus};
42use ::git::permalink::{build_permalink, BuildPermalinkParams};
43pub(crate) use actions::*;
44use aho_corasick::AhoCorasick;
45use anyhow::{anyhow, Context as _, Result};
46use blink_manager::BlinkManager;
47use client::{Collaborator, ParticipantIndex};
48use clock::ReplicaId;
49use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
50use convert_case::{Case, Casing};
51use debounced_delay::DebouncedDelay;
52pub use display_map::DisplayPoint;
53use display_map::*;
54pub use editor_settings::EditorSettings;
55use element::LineWithInvisibles;
56pub use element::{
57 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
58};
59use futures::FutureExt;
60use fuzzy::{StringMatch, StringMatchCandidate};
61use git::blame::GitBlame;
62use git::diff_hunk_to_display;
63use gpui::{
64 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
65 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
66 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
67 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
68 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
69 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
70 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
71};
72use highlight_matching_bracket::refresh_matching_bracket_highlights;
73use hover_popover::{hide_hover, HoverState};
74use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
75pub use inline_completion_provider::*;
76pub use items::MAX_TAB_TITLE_LEN;
77use itertools::Itertools;
78use language::{
79 char_kind,
80 language_settings::{self, all_language_settings, InlayHintSettings},
81 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
82 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
83 Point, Selection, SelectionGoal, TransactionId,
84};
85
86use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
87use lsp::{DiagnosticSeverity, LanguageServerId};
88use mouse_context_menu::MouseContextMenu;
89use movement::TextLayoutDetails;
90use multi_buffer::ToOffsetUtf16;
91pub use multi_buffer::{
92 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
93 ToPoint,
94};
95use ordered_float::OrderedFloat;
96use parking_lot::{Mutex, RwLock};
97use project::project_settings::{GitGutterSetting, ProjectSettings};
98use project::{
99 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath, ProjectTransaction,
100};
101use rand::prelude::*;
102use rpc::proto::*;
103use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
104use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
105use serde::{Deserialize, Serialize};
106use settings::{Settings, SettingsStore};
107use smallvec::SmallVec;
108use snippet::Snippet;
109use std::ops::Not as _;
110use std::{
111 any::TypeId,
112 borrow::Cow,
113 cmp::{self, Ordering, Reverse},
114 mem,
115 num::NonZeroU32,
116 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
117 path::Path,
118 sync::Arc,
119 time::{Duration, Instant},
120};
121pub use sum_tree::Bias;
122use sum_tree::TreeMap;
123use text::{BufferId, OffsetUtf16, Rope};
124use theme::{
125 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
126 ThemeColors, ThemeSettings,
127};
128use ui::{
129 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
130 Tooltip,
131};
132use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
133use workspace::item::ItemHandle;
134use workspace::notifications::NotificationId;
135use workspace::{
136 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
137};
138use workspace::{OpenInTerminal, OpenTerminal, Toast};
139
140use crate::hover_links::find_url;
141
142pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
143const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
144const MAX_LINE_LEN: usize = 1024;
145const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
146const MAX_SELECTION_HISTORY_LEN: usize = 1024;
147pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
148#[doc(hidden)]
149pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
150#[doc(hidden)]
151pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
152
153pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
154
155pub fn render_parsed_markdown(
156 element_id: impl Into<ElementId>,
157 parsed: &language::ParsedMarkdown,
158 editor_style: &EditorStyle,
159 workspace: Option<WeakView<Workspace>>,
160 cx: &mut WindowContext,
161) -> InteractiveText {
162 let code_span_background_color = cx
163 .theme()
164 .colors()
165 .editor_document_highlight_read_background;
166
167 let highlights = gpui::combine_highlights(
168 parsed.highlights.iter().filter_map(|(range, highlight)| {
169 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
170 Some((range.clone(), highlight))
171 }),
172 parsed
173 .regions
174 .iter()
175 .zip(&parsed.region_ranges)
176 .filter_map(|(region, range)| {
177 if region.code {
178 Some((
179 range.clone(),
180 HighlightStyle {
181 background_color: Some(code_span_background_color),
182 ..Default::default()
183 },
184 ))
185 } else {
186 None
187 }
188 }),
189 );
190
191 let mut links = Vec::new();
192 let mut link_ranges = Vec::new();
193 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
194 if let Some(link) = region.link.clone() {
195 links.push(link);
196 link_ranges.push(range.clone());
197 }
198 }
199
200 InteractiveText::new(
201 element_id,
202 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
203 )
204 .on_click(link_ranges, move |clicked_range_ix, cx| {
205 match &links[clicked_range_ix] {
206 markdown::Link::Web { url } => cx.open_url(url),
207 markdown::Link::Path { path } => {
208 if let Some(workspace) = &workspace {
209 _ = workspace.update(cx, |workspace, cx| {
210 workspace.open_abs_path(path.clone(), false, cx).detach();
211 });
212 }
213 }
214 }
215 })
216}
217
218#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
219pub(crate) enum InlayId {
220 Suggestion(usize),
221 Hint(usize),
222}
223
224impl InlayId {
225 fn id(&self) -> usize {
226 match self {
227 Self::Suggestion(id) => *id,
228 Self::Hint(id) => *id,
229 }
230 }
231}
232
233enum DocumentHighlightRead {}
234enum DocumentHighlightWrite {}
235enum InputComposition {}
236
237#[derive(Copy, Clone, PartialEq, Eq)]
238pub enum Direction {
239 Prev,
240 Next,
241}
242
243pub fn init_settings(cx: &mut AppContext) {
244 EditorSettings::register(cx);
245}
246
247pub fn init(cx: &mut AppContext) {
248 init_settings(cx);
249
250 workspace::register_project_item::<Editor>(cx);
251 workspace::register_followable_item::<Editor>(cx);
252 workspace::register_deserializable_item::<Editor>(cx);
253 cx.observe_new_views(
254 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
255 workspace.register_action(Editor::new_file);
256 workspace.register_action(Editor::new_file_in_direction);
257 },
258 )
259 .detach();
260
261 cx.on_action(move |_: &workspace::NewFile, cx| {
262 let app_state = workspace::AppState::global(cx);
263 if let Some(app_state) = app_state.upgrade() {
264 workspace::open_new(app_state, cx, |workspace, cx| {
265 Editor::new_file(workspace, &Default::default(), cx)
266 })
267 .detach();
268 }
269 });
270 cx.on_action(move |_: &workspace::NewWindow, cx| {
271 let app_state = workspace::AppState::global(cx);
272 if let Some(app_state) = app_state.upgrade() {
273 workspace::open_new(app_state, cx, |workspace, cx| {
274 Editor::new_file(workspace, &Default::default(), cx)
275 })
276 .detach();
277 }
278 });
279}
280
281trait InvalidationRegion {
282 fn ranges(&self) -> &[Range<Anchor>];
283}
284
285#[derive(Clone, Debug, PartialEq)]
286pub enum SelectPhase {
287 Begin {
288 position: DisplayPoint,
289 add: bool,
290 click_count: usize,
291 },
292 BeginColumnar {
293 position: DisplayPoint,
294 goal_column: u32,
295 },
296 Extend {
297 position: DisplayPoint,
298 click_count: usize,
299 },
300 Update {
301 position: DisplayPoint,
302 goal_column: u32,
303 scroll_delta: gpui::Point<f32>,
304 },
305 End,
306}
307
308#[derive(Clone, Debug)]
309pub enum SelectMode {
310 Character,
311 Word(Range<Anchor>),
312 Line(Range<Anchor>),
313 All,
314}
315
316#[derive(Copy, Clone, PartialEq, Eq, Debug)]
317pub enum EditorMode {
318 SingleLine,
319 AutoHeight { max_lines: usize },
320 Full,
321}
322
323#[derive(Clone, Debug)]
324pub enum SoftWrap {
325 None,
326 EditorWidth,
327 Column(u32),
328}
329
330#[derive(Clone)]
331pub struct EditorStyle {
332 pub background: Hsla,
333 pub local_player: PlayerColor,
334 pub text: TextStyle,
335 pub scrollbar_width: Pixels,
336 pub syntax: Arc<SyntaxTheme>,
337 pub status: StatusColors,
338 pub inlay_hints_style: HighlightStyle,
339 pub suggestions_style: HighlightStyle,
340}
341
342impl Default for EditorStyle {
343 fn default() -> Self {
344 Self {
345 background: Hsla::default(),
346 local_player: PlayerColor::default(),
347 text: TextStyle::default(),
348 scrollbar_width: Pixels::default(),
349 syntax: Default::default(),
350 // HACK: Status colors don't have a real default.
351 // We should look into removing the status colors from the editor
352 // style and retrieve them directly from the theme.
353 status: StatusColors::dark(),
354 inlay_hints_style: HighlightStyle::default(),
355 suggestions_style: HighlightStyle::default(),
356 }
357 }
358}
359
360type CompletionId = usize;
361
362// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
363// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
364
365type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
366
367struct ScrollbarMarkerState {
368 scrollbar_size: Size<Pixels>,
369 dirty: bool,
370 markers: Arc<[PaintQuad]>,
371 pending_refresh: Option<Task<Result<()>>>,
372}
373
374impl ScrollbarMarkerState {
375 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
376 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
377 }
378}
379
380impl Default for ScrollbarMarkerState {
381 fn default() -> Self {
382 Self {
383 scrollbar_size: Size::default(),
384 dirty: false,
385 markers: Arc::from([]),
386 pending_refresh: None,
387 }
388 }
389}
390
391/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
392///
393/// See the [module level documentation](self) for more information.
394pub struct Editor {
395 focus_handle: FocusHandle,
396 /// The text buffer being edited
397 buffer: Model<MultiBuffer>,
398 /// Map of how text in the buffer should be displayed.
399 /// Handles soft wraps, folds, fake inlay text insertions, etc.
400 pub display_map: Model<DisplayMap>,
401 pub selections: SelectionsCollection,
402 pub scroll_manager: ScrollManager,
403 columnar_selection_tail: Option<Anchor>,
404 add_selections_state: Option<AddSelectionsState>,
405 select_next_state: Option<SelectNextState>,
406 select_prev_state: Option<SelectNextState>,
407 selection_history: SelectionHistory,
408 autoclose_regions: Vec<AutocloseRegion>,
409 snippet_stack: InvalidationStack<SnippetState>,
410 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
411 ime_transaction: Option<TransactionId>,
412 active_diagnostics: Option<ActiveDiagnosticGroup>,
413 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
414 project: Option<Model<Project>>,
415 completion_provider: Option<Box<dyn CompletionProvider>>,
416 collaboration_hub: Option<Box<dyn CollaborationHub>>,
417 blink_manager: Model<BlinkManager>,
418 show_cursor_names: bool,
419 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
420 pub show_local_selections: bool,
421 mode: EditorMode,
422 show_breadcrumbs: bool,
423 show_gutter: bool,
424 show_wrap_guides: Option<bool>,
425 placeholder_text: Option<Arc<str>>,
426 highlight_order: usize,
427 highlighted_rows: HashMap<TypeId, Vec<(usize, Range<Anchor>, Hsla)>>,
428 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
429 scrollbar_marker_state: ScrollbarMarkerState,
430 nav_history: Option<ItemNavHistory>,
431 context_menu: RwLock<Option<ContextMenu>>,
432 mouse_context_menu: Option<MouseContextMenu>,
433 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
434 find_all_references_task_sources: Vec<Anchor>,
435 next_completion_id: CompletionId,
436 completion_documentation_pre_resolve_debounce: DebouncedDelay,
437 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
438 code_actions_task: Option<Task<()>>,
439 document_highlights_task: Option<Task<()>>,
440 pending_rename: Option<RenameState>,
441 searchable: bool,
442 cursor_shape: CursorShape,
443 collapse_matches: bool,
444 autoindent_mode: Option<AutoindentMode>,
445 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
446 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
447 input_enabled: bool,
448 use_modal_editing: bool,
449 read_only: bool,
450 leader_peer_id: Option<PeerId>,
451 remote_id: Option<ViewId>,
452 hover_state: HoverState,
453 gutter_hovered: bool,
454 hovered_link_state: Option<HoveredLinkState>,
455 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
456 active_inline_completion: Option<Inlay>,
457 show_inline_completions: bool,
458 inlay_hint_cache: InlayHintCache,
459 next_inlay_id: usize,
460 _subscriptions: Vec<Subscription>,
461 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
462 gutter_width: Pixels,
463 pub vim_replace_map: HashMap<Range<usize>, String>,
464 style: Option<EditorStyle>,
465 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
466 use_autoclose: bool,
467 auto_replace_emoji_shortcode: bool,
468 show_git_blame_gutter: bool,
469 show_git_blame_inline: bool,
470 show_git_blame_inline_delay_task: Option<Task<()>>,
471 git_blame_inline_enabled: bool,
472 blame: Option<Model<GitBlame>>,
473 blame_subscription: Option<Subscription>,
474 custom_context_menu: Option<
475 Box<
476 dyn 'static
477 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
478 >,
479 >,
480 last_bounds: Option<Bounds<Pixels>>,
481 expect_bounds_change: Option<Bounds<Pixels>>,
482}
483
484#[derive(Clone)]
485pub struct EditorSnapshot {
486 pub mode: EditorMode,
487 show_gutter: bool,
488 render_git_blame_gutter: bool,
489 pub display_snapshot: DisplaySnapshot,
490 pub placeholder_text: Option<Arc<str>>,
491 is_focused: bool,
492 scroll_anchor: ScrollAnchor,
493 ongoing_scroll: OngoingScroll,
494}
495
496const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
497
498pub struct GutterDimensions {
499 pub left_padding: Pixels,
500 pub right_padding: Pixels,
501 pub width: Pixels,
502 pub margin: Pixels,
503 pub git_blame_entries_width: Option<Pixels>,
504}
505
506impl Default for GutterDimensions {
507 fn default() -> Self {
508 Self {
509 left_padding: Pixels::ZERO,
510 right_padding: Pixels::ZERO,
511 width: Pixels::ZERO,
512 margin: Pixels::ZERO,
513 git_blame_entries_width: None,
514 }
515 }
516}
517
518#[derive(Debug)]
519pub struct RemoteSelection {
520 pub replica_id: ReplicaId,
521 pub selection: Selection<Anchor>,
522 pub cursor_shape: CursorShape,
523 pub peer_id: PeerId,
524 pub line_mode: bool,
525 pub participant_index: Option<ParticipantIndex>,
526 pub user_name: Option<SharedString>,
527}
528
529#[derive(Clone, Debug)]
530struct SelectionHistoryEntry {
531 selections: Arc<[Selection<Anchor>]>,
532 select_next_state: Option<SelectNextState>,
533 select_prev_state: Option<SelectNextState>,
534 add_selections_state: Option<AddSelectionsState>,
535}
536
537enum SelectionHistoryMode {
538 Normal,
539 Undoing,
540 Redoing,
541}
542
543#[derive(Clone, PartialEq, Eq, Hash)]
544struct HoveredCursor {
545 replica_id: u16,
546 selection_id: usize,
547}
548
549impl Default for SelectionHistoryMode {
550 fn default() -> Self {
551 Self::Normal
552 }
553}
554
555#[derive(Default)]
556struct SelectionHistory {
557 #[allow(clippy::type_complexity)]
558 selections_by_transaction:
559 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
560 mode: SelectionHistoryMode,
561 undo_stack: VecDeque<SelectionHistoryEntry>,
562 redo_stack: VecDeque<SelectionHistoryEntry>,
563}
564
565impl SelectionHistory {
566 fn insert_transaction(
567 &mut self,
568 transaction_id: TransactionId,
569 selections: Arc<[Selection<Anchor>]>,
570 ) {
571 self.selections_by_transaction
572 .insert(transaction_id, (selections, None));
573 }
574
575 #[allow(clippy::type_complexity)]
576 fn transaction(
577 &self,
578 transaction_id: TransactionId,
579 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
580 self.selections_by_transaction.get(&transaction_id)
581 }
582
583 #[allow(clippy::type_complexity)]
584 fn transaction_mut(
585 &mut self,
586 transaction_id: TransactionId,
587 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
588 self.selections_by_transaction.get_mut(&transaction_id)
589 }
590
591 fn push(&mut self, entry: SelectionHistoryEntry) {
592 if !entry.selections.is_empty() {
593 match self.mode {
594 SelectionHistoryMode::Normal => {
595 self.push_undo(entry);
596 self.redo_stack.clear();
597 }
598 SelectionHistoryMode::Undoing => self.push_redo(entry),
599 SelectionHistoryMode::Redoing => self.push_undo(entry),
600 }
601 }
602 }
603
604 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
605 if self
606 .undo_stack
607 .back()
608 .map_or(true, |e| e.selections != entry.selections)
609 {
610 self.undo_stack.push_back(entry);
611 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
612 self.undo_stack.pop_front();
613 }
614 }
615 }
616
617 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
618 if self
619 .redo_stack
620 .back()
621 .map_or(true, |e| e.selections != entry.selections)
622 {
623 self.redo_stack.push_back(entry);
624 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
625 self.redo_stack.pop_front();
626 }
627 }
628 }
629}
630
631#[derive(Clone, Debug)]
632struct AddSelectionsState {
633 above: bool,
634 stack: Vec<usize>,
635}
636
637#[derive(Clone)]
638struct SelectNextState {
639 query: AhoCorasick,
640 wordwise: bool,
641 done: bool,
642}
643
644impl std::fmt::Debug for SelectNextState {
645 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
646 f.debug_struct(std::any::type_name::<Self>())
647 .field("wordwise", &self.wordwise)
648 .field("done", &self.done)
649 .finish()
650 }
651}
652
653#[derive(Debug)]
654struct AutocloseRegion {
655 selection_id: usize,
656 range: Range<Anchor>,
657 pair: BracketPair,
658}
659
660#[derive(Debug)]
661struct SnippetState {
662 ranges: Vec<Vec<Range<Anchor>>>,
663 active_index: usize,
664}
665
666#[doc(hidden)]
667pub struct RenameState {
668 pub range: Range<Anchor>,
669 pub old_name: Arc<str>,
670 pub editor: View<Editor>,
671 block_id: BlockId,
672}
673
674struct InvalidationStack<T>(Vec<T>);
675
676struct RegisteredInlineCompletionProvider {
677 provider: Arc<dyn InlineCompletionProviderHandle>,
678 _subscription: Subscription,
679}
680
681enum ContextMenu {
682 Completions(CompletionsMenu),
683 CodeActions(CodeActionsMenu),
684}
685
686impl ContextMenu {
687 fn select_first(
688 &mut self,
689 project: Option<&Model<Project>>,
690 cx: &mut ViewContext<Editor>,
691 ) -> bool {
692 if self.visible() {
693 match self {
694 ContextMenu::Completions(menu) => menu.select_first(project, cx),
695 ContextMenu::CodeActions(menu) => menu.select_first(cx),
696 }
697 true
698 } else {
699 false
700 }
701 }
702
703 fn select_prev(
704 &mut self,
705 project: Option<&Model<Project>>,
706 cx: &mut ViewContext<Editor>,
707 ) -> bool {
708 if self.visible() {
709 match self {
710 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
711 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
712 }
713 true
714 } else {
715 false
716 }
717 }
718
719 fn select_next(
720 &mut self,
721 project: Option<&Model<Project>>,
722 cx: &mut ViewContext<Editor>,
723 ) -> bool {
724 if self.visible() {
725 match self {
726 ContextMenu::Completions(menu) => menu.select_next(project, cx),
727 ContextMenu::CodeActions(menu) => menu.select_next(cx),
728 }
729 true
730 } else {
731 false
732 }
733 }
734
735 fn select_last(
736 &mut self,
737 project: Option<&Model<Project>>,
738 cx: &mut ViewContext<Editor>,
739 ) -> bool {
740 if self.visible() {
741 match self {
742 ContextMenu::Completions(menu) => menu.select_last(project, cx),
743 ContextMenu::CodeActions(menu) => menu.select_last(cx),
744 }
745 true
746 } else {
747 false
748 }
749 }
750
751 fn visible(&self) -> bool {
752 match self {
753 ContextMenu::Completions(menu) => menu.visible(),
754 ContextMenu::CodeActions(menu) => menu.visible(),
755 }
756 }
757
758 fn render(
759 &self,
760 cursor_position: DisplayPoint,
761 style: &EditorStyle,
762 max_height: Pixels,
763 workspace: Option<WeakView<Workspace>>,
764 cx: &mut ViewContext<Editor>,
765 ) -> (DisplayPoint, AnyElement) {
766 match self {
767 ContextMenu::Completions(menu) => (
768 cursor_position,
769 menu.render(style, max_height, workspace, cx),
770 ),
771 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
772 }
773 }
774}
775
776#[derive(Clone)]
777struct CompletionsMenu {
778 id: CompletionId,
779 initial_position: Anchor,
780 buffer: Model<Buffer>,
781 completions: Arc<RwLock<Box<[Completion]>>>,
782 match_candidates: Arc<[StringMatchCandidate]>,
783 matches: Arc<[StringMatch]>,
784 selected_item: usize,
785 scroll_handle: UniformListScrollHandle,
786 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
787}
788
789impl CompletionsMenu {
790 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
791 self.selected_item = 0;
792 self.scroll_handle.scroll_to_item(self.selected_item);
793 self.attempt_resolve_selected_completion_documentation(project, cx);
794 cx.notify();
795 }
796
797 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
798 if self.selected_item > 0 {
799 self.selected_item -= 1;
800 } else {
801 self.selected_item = self.matches.len() - 1;
802 }
803 self.scroll_handle.scroll_to_item(self.selected_item);
804 self.attempt_resolve_selected_completion_documentation(project, cx);
805 cx.notify();
806 }
807
808 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
809 if self.selected_item + 1 < self.matches.len() {
810 self.selected_item += 1;
811 } else {
812 self.selected_item = 0;
813 }
814 self.scroll_handle.scroll_to_item(self.selected_item);
815 self.attempt_resolve_selected_completion_documentation(project, cx);
816 cx.notify();
817 }
818
819 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
820 self.selected_item = self.matches.len() - 1;
821 self.scroll_handle.scroll_to_item(self.selected_item);
822 self.attempt_resolve_selected_completion_documentation(project, cx);
823 cx.notify();
824 }
825
826 fn pre_resolve_completion_documentation(
827 completions: Arc<RwLock<Box<[Completion]>>>,
828 matches: Arc<[StringMatch]>,
829 editor: &Editor,
830 cx: &mut ViewContext<Editor>,
831 ) -> Task<()> {
832 let settings = EditorSettings::get_global(cx);
833 if !settings.show_completion_documentation {
834 return Task::ready(());
835 }
836
837 let Some(provider) = editor.completion_provider.as_ref() else {
838 return Task::ready(());
839 };
840
841 let resolve_task = provider.resolve_completions(
842 matches.iter().map(|m| m.candidate_id).collect(),
843 completions.clone(),
844 cx,
845 );
846
847 return cx.spawn(move |this, mut cx| async move {
848 if let Some(true) = resolve_task.await.log_err() {
849 this.update(&mut cx, |_, cx| cx.notify()).ok();
850 }
851 });
852 }
853
854 fn attempt_resolve_selected_completion_documentation(
855 &mut self,
856 project: Option<&Model<Project>>,
857 cx: &mut ViewContext<Editor>,
858 ) {
859 let settings = EditorSettings::get_global(cx);
860 if !settings.show_completion_documentation {
861 return;
862 }
863
864 let completion_index = self.matches[self.selected_item].candidate_id;
865 let Some(project) = project else {
866 return;
867 };
868
869 let resolve_task = project.update(cx, |project, cx| {
870 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
871 });
872
873 let delay_ms =
874 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
875 let delay = Duration::from_millis(delay_ms);
876
877 self.selected_completion_documentation_resolve_debounce
878 .lock()
879 .fire_new(delay, cx, |_, cx| {
880 cx.spawn(move |this, mut cx| async move {
881 if let Some(true) = resolve_task.await.log_err() {
882 this.update(&mut cx, |_, cx| cx.notify()).ok();
883 }
884 })
885 });
886 }
887
888 fn visible(&self) -> bool {
889 !self.matches.is_empty()
890 }
891
892 fn render(
893 &self,
894 style: &EditorStyle,
895 max_height: Pixels,
896 workspace: Option<WeakView<Workspace>>,
897 cx: &mut ViewContext<Editor>,
898 ) -> AnyElement {
899 let settings = EditorSettings::get_global(cx);
900 let show_completion_documentation = settings.show_completion_documentation;
901
902 let widest_completion_ix = self
903 .matches
904 .iter()
905 .enumerate()
906 .max_by_key(|(_, mat)| {
907 let completions = self.completions.read();
908 let completion = &completions[mat.candidate_id];
909 let documentation = &completion.documentation;
910
911 let mut len = completion.label.text.chars().count();
912 if let Some(Documentation::SingleLine(text)) = documentation {
913 if show_completion_documentation {
914 len += text.chars().count();
915 }
916 }
917
918 len
919 })
920 .map(|(ix, _)| ix);
921
922 let completions = self.completions.clone();
923 let matches = self.matches.clone();
924 let selected_item = self.selected_item;
925 let style = style.clone();
926
927 let multiline_docs = if show_completion_documentation {
928 let mat = &self.matches[selected_item];
929 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
930 Some(Documentation::MultiLinePlainText(text)) => {
931 Some(div().child(SharedString::from(text.clone())))
932 }
933 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
934 Some(div().child(render_parsed_markdown(
935 "completions_markdown",
936 parsed,
937 &style,
938 workspace,
939 cx,
940 )))
941 }
942 _ => None,
943 };
944 multiline_docs.map(|div| {
945 div.id("multiline_docs")
946 .max_h(max_height)
947 .flex_1()
948 .px_1p5()
949 .py_1()
950 .min_w(px(260.))
951 .max_w(px(640.))
952 .w(px(500.))
953 .overflow_y_scroll()
954 .occlude()
955 })
956 } else {
957 None
958 };
959
960 let list = uniform_list(
961 cx.view().clone(),
962 "completions",
963 matches.len(),
964 move |_editor, range, cx| {
965 let start_ix = range.start;
966 let completions_guard = completions.read();
967
968 matches[range]
969 .iter()
970 .enumerate()
971 .map(|(ix, mat)| {
972 let item_ix = start_ix + ix;
973 let candidate_id = mat.candidate_id;
974 let completion = &completions_guard[candidate_id];
975
976 let documentation = if show_completion_documentation {
977 &completion.documentation
978 } else {
979 &None
980 };
981
982 let highlights = gpui::combine_highlights(
983 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
984 styled_runs_for_code_label(&completion.label, &style.syntax).map(
985 |(range, mut highlight)| {
986 // Ignore font weight for syntax highlighting, as we'll use it
987 // for fuzzy matches.
988 highlight.font_weight = None;
989
990 if completion.lsp_completion.deprecated.unwrap_or(false) {
991 highlight.strikethrough = Some(StrikethroughStyle {
992 thickness: 1.0.into(),
993 ..Default::default()
994 });
995 highlight.color = Some(cx.theme().colors().text_muted);
996 }
997
998 (range, highlight)
999 },
1000 ),
1001 );
1002 let completion_label = StyledText::new(completion.label.text.clone())
1003 .with_highlights(&style.text, highlights);
1004 let documentation_label =
1005 if let Some(Documentation::SingleLine(text)) = documentation {
1006 if text.trim().is_empty() {
1007 None
1008 } else {
1009 Some(
1010 h_flex().ml_4().child(
1011 Label::new(text.clone())
1012 .size(LabelSize::Small)
1013 .color(Color::Muted),
1014 ),
1015 )
1016 }
1017 } else {
1018 None
1019 };
1020
1021 div().min_w(px(220.)).max_w(px(540.)).child(
1022 ListItem::new(mat.candidate_id)
1023 .inset(true)
1024 .selected(item_ix == selected_item)
1025 .on_click(cx.listener(move |editor, _event, cx| {
1026 cx.stop_propagation();
1027 if let Some(task) = editor.confirm_completion(
1028 &ConfirmCompletion {
1029 item_ix: Some(item_ix),
1030 },
1031 cx,
1032 ) {
1033 task.detach_and_log_err(cx)
1034 }
1035 }))
1036 .child(h_flex().overflow_hidden().child(completion_label))
1037 .end_slot::<Div>(documentation_label),
1038 )
1039 })
1040 .collect()
1041 },
1042 )
1043 .occlude()
1044 .max_h(max_height)
1045 .track_scroll(self.scroll_handle.clone())
1046 .with_width_from_item(widest_completion_ix);
1047
1048 Popover::new()
1049 .child(list)
1050 .when_some(multiline_docs, |popover, multiline_docs| {
1051 popover.aside(multiline_docs)
1052 })
1053 .into_any_element()
1054 }
1055
1056 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1057 let mut matches = if let Some(query) = query {
1058 fuzzy::match_strings(
1059 &self.match_candidates,
1060 query,
1061 query.chars().any(|c| c.is_uppercase()),
1062 100,
1063 &Default::default(),
1064 executor,
1065 )
1066 .await
1067 } else {
1068 self.match_candidates
1069 .iter()
1070 .enumerate()
1071 .map(|(candidate_id, candidate)| StringMatch {
1072 candidate_id,
1073 score: Default::default(),
1074 positions: Default::default(),
1075 string: candidate.string.clone(),
1076 })
1077 .collect()
1078 };
1079
1080 // Remove all candidates where the query's start does not match the start of any word in the candidate
1081 if let Some(query) = query {
1082 if let Some(query_start) = query.chars().next() {
1083 matches.retain(|string_match| {
1084 split_words(&string_match.string).any(|word| {
1085 // Check that the first codepoint of the word as lowercase matches the first
1086 // codepoint of the query as lowercase
1087 word.chars()
1088 .flat_map(|codepoint| codepoint.to_lowercase())
1089 .zip(query_start.to_lowercase())
1090 .all(|(word_cp, query_cp)| word_cp == query_cp)
1091 })
1092 });
1093 }
1094 }
1095
1096 let completions = self.completions.read();
1097 matches.sort_unstable_by_key(|mat| {
1098 // We do want to strike a balance here between what the language server tells us
1099 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1100 // `Creat` and there is a local variable called `CreateComponent`).
1101 // So what we do is: we bucket all matches into two buckets
1102 // - Strong matches
1103 // - Weak matches
1104 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1105 // and the Weak matches are the rest.
1106 //
1107 // For the strong matches, we sort by the language-servers score first and for the weak
1108 // matches, we prefer our fuzzy finder first.
1109 //
1110 // The thinking behind that: it's useless to take the sort_text the language-server gives
1111 // us into account when it's obviously a bad match.
1112
1113 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1114 enum MatchScore<'a> {
1115 Strong {
1116 sort_text: Option<&'a str>,
1117 score: Reverse<OrderedFloat<f64>>,
1118 sort_key: (usize, &'a str),
1119 },
1120 Weak {
1121 score: Reverse<OrderedFloat<f64>>,
1122 sort_text: Option<&'a str>,
1123 sort_key: (usize, &'a str),
1124 },
1125 }
1126
1127 let completion = &completions[mat.candidate_id];
1128 let sort_key = completion.sort_key();
1129 let sort_text = completion.lsp_completion.sort_text.as_deref();
1130 let score = Reverse(OrderedFloat(mat.score));
1131
1132 if mat.score >= 0.2 {
1133 MatchScore::Strong {
1134 sort_text,
1135 score,
1136 sort_key,
1137 }
1138 } else {
1139 MatchScore::Weak {
1140 score,
1141 sort_text,
1142 sort_key,
1143 }
1144 }
1145 });
1146
1147 for mat in &mut matches {
1148 let completion = &completions[mat.candidate_id];
1149 mat.string = completion.label.text.clone();
1150 for position in &mut mat.positions {
1151 *position += completion.label.filter_range.start;
1152 }
1153 }
1154 drop(completions);
1155
1156 self.matches = matches.into();
1157 self.selected_item = 0;
1158 }
1159}
1160
1161#[derive(Clone)]
1162struct CodeActionsMenu {
1163 actions: Arc<[CodeAction]>,
1164 buffer: Model<Buffer>,
1165 selected_item: usize,
1166 scroll_handle: UniformListScrollHandle,
1167 deployed_from_indicator: bool,
1168}
1169
1170impl CodeActionsMenu {
1171 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1172 self.selected_item = 0;
1173 self.scroll_handle.scroll_to_item(self.selected_item);
1174 cx.notify()
1175 }
1176
1177 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1178 if self.selected_item > 0 {
1179 self.selected_item -= 1;
1180 } else {
1181 self.selected_item = self.actions.len() - 1;
1182 }
1183 self.scroll_handle.scroll_to_item(self.selected_item);
1184 cx.notify();
1185 }
1186
1187 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1188 if self.selected_item + 1 < self.actions.len() {
1189 self.selected_item += 1;
1190 } else {
1191 self.selected_item = 0;
1192 }
1193 self.scroll_handle.scroll_to_item(self.selected_item);
1194 cx.notify();
1195 }
1196
1197 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1198 self.selected_item = self.actions.len() - 1;
1199 self.scroll_handle.scroll_to_item(self.selected_item);
1200 cx.notify()
1201 }
1202
1203 fn visible(&self) -> bool {
1204 !self.actions.is_empty()
1205 }
1206
1207 fn render(
1208 &self,
1209 mut cursor_position: DisplayPoint,
1210 _style: &EditorStyle,
1211 max_height: Pixels,
1212 cx: &mut ViewContext<Editor>,
1213 ) -> (DisplayPoint, AnyElement) {
1214 let actions = self.actions.clone();
1215 let selected_item = self.selected_item;
1216
1217 let element = uniform_list(
1218 cx.view().clone(),
1219 "code_actions_menu",
1220 self.actions.len(),
1221 move |_this, range, cx| {
1222 actions[range.clone()]
1223 .iter()
1224 .enumerate()
1225 .map(|(ix, action)| {
1226 let item_ix = range.start + ix;
1227 let selected = selected_item == item_ix;
1228 let colors = cx.theme().colors();
1229 div()
1230 .px_2()
1231 .text_color(colors.text)
1232 .when(selected, |style| {
1233 style
1234 .bg(colors.element_active)
1235 .text_color(colors.text_accent)
1236 })
1237 .hover(|style| {
1238 style
1239 .bg(colors.element_hover)
1240 .text_color(colors.text_accent)
1241 })
1242 .on_mouse_down(
1243 MouseButton::Left,
1244 cx.listener(move |editor, _, cx| {
1245 cx.stop_propagation();
1246 if let Some(task) = editor.confirm_code_action(
1247 &ConfirmCodeAction {
1248 item_ix: Some(item_ix),
1249 },
1250 cx,
1251 ) {
1252 task.detach_and_log_err(cx)
1253 }
1254 }),
1255 )
1256 .whitespace_nowrap()
1257 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1258 .child(SharedString::from(action.lsp_action.title.clone()))
1259 })
1260 .collect()
1261 },
1262 )
1263 .elevation_1(cx)
1264 .px_2()
1265 .py_1()
1266 .max_h(max_height)
1267 .occlude()
1268 .track_scroll(self.scroll_handle.clone())
1269 .with_width_from_item(
1270 self.actions
1271 .iter()
1272 .enumerate()
1273 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1274 .map(|(ix, _)| ix),
1275 )
1276 .into_any_element();
1277
1278 if self.deployed_from_indicator {
1279 *cursor_position.column_mut() = 0;
1280 }
1281
1282 (cursor_position, element)
1283 }
1284}
1285
1286#[derive(Debug)]
1287struct ActiveDiagnosticGroup {
1288 primary_range: Range<Anchor>,
1289 primary_message: String,
1290 blocks: HashMap<BlockId, Diagnostic>,
1291 is_valid: bool,
1292}
1293
1294#[derive(Serialize, Deserialize)]
1295pub struct ClipboardSelection {
1296 pub len: usize,
1297 pub is_entire_line: bool,
1298 pub first_line_indent: u32,
1299}
1300
1301#[derive(Debug)]
1302pub(crate) struct NavigationData {
1303 cursor_anchor: Anchor,
1304 cursor_position: Point,
1305 scroll_anchor: ScrollAnchor,
1306 scroll_top_row: u32,
1307}
1308
1309enum GotoDefinitionKind {
1310 Symbol,
1311 Type,
1312 Implementation,
1313}
1314
1315#[derive(Debug, Clone)]
1316enum InlayHintRefreshReason {
1317 Toggle(bool),
1318 SettingsChange(InlayHintSettings),
1319 NewLinesShown,
1320 BufferEdited(HashSet<Arc<Language>>),
1321 RefreshRequested,
1322 ExcerptsRemoved(Vec<ExcerptId>),
1323}
1324
1325impl InlayHintRefreshReason {
1326 fn description(&self) -> &'static str {
1327 match self {
1328 Self::Toggle(_) => "toggle",
1329 Self::SettingsChange(_) => "settings change",
1330 Self::NewLinesShown => "new lines shown",
1331 Self::BufferEdited(_) => "buffer edited",
1332 Self::RefreshRequested => "refresh requested",
1333 Self::ExcerptsRemoved(_) => "excerpts removed",
1334 }
1335 }
1336}
1337
1338impl Editor {
1339 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1340 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1341 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1342 Self::new(EditorMode::SingleLine, buffer, None, cx)
1343 }
1344
1345 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1346 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1347 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1348 Self::new(EditorMode::Full, buffer, None, cx)
1349 }
1350
1351 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1352 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1353 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1354 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1355 }
1356
1357 pub fn for_buffer(
1358 buffer: Model<Buffer>,
1359 project: Option<Model<Project>>,
1360 cx: &mut ViewContext<Self>,
1361 ) -> Self {
1362 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1363 Self::new(EditorMode::Full, buffer, project, cx)
1364 }
1365
1366 pub fn for_multibuffer(
1367 buffer: Model<MultiBuffer>,
1368 project: Option<Model<Project>>,
1369 cx: &mut ViewContext<Self>,
1370 ) -> Self {
1371 Self::new(EditorMode::Full, buffer, project, cx)
1372 }
1373
1374 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1375 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1376 self.display_map.update(cx, |display_map, cx| {
1377 let snapshot = display_map.snapshot(cx);
1378 clone.display_map.update(cx, |display_map, cx| {
1379 display_map.set_state(&snapshot, cx);
1380 });
1381 });
1382 clone.selections.clone_state(&self.selections);
1383 clone.scroll_manager.clone_state(&self.scroll_manager);
1384 clone.searchable = self.searchable;
1385 clone
1386 }
1387
1388 fn new(
1389 mode: EditorMode,
1390 buffer: Model<MultiBuffer>,
1391 project: Option<Model<Project>>,
1392 cx: &mut ViewContext<Self>,
1393 ) -> Self {
1394 let style = cx.text_style();
1395 let font_size = style.font_size.to_pixels(cx.rem_size());
1396 let display_map = cx.new_model(|cx| {
1397 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1398 });
1399
1400 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1401
1402 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1403
1404 let soft_wrap_mode_override =
1405 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1406
1407 let mut project_subscriptions = Vec::new();
1408 if mode == EditorMode::Full {
1409 if let Some(project) = project.as_ref() {
1410 if buffer.read(cx).is_singleton() {
1411 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1412 cx.emit(EditorEvent::TitleChanged);
1413 }));
1414 }
1415 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1416 if let project::Event::RefreshInlayHints = event {
1417 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1418 };
1419 }));
1420 }
1421 }
1422
1423 let inlay_hint_settings = inlay_hint_settings(
1424 selections.newest_anchor().head(),
1425 &buffer.read(cx).snapshot(cx),
1426 cx,
1427 );
1428
1429 let focus_handle = cx.focus_handle();
1430 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1431 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1432
1433 let mut this = Self {
1434 focus_handle,
1435 buffer: buffer.clone(),
1436 display_map: display_map.clone(),
1437 selections,
1438 scroll_manager: ScrollManager::new(cx),
1439 columnar_selection_tail: None,
1440 add_selections_state: None,
1441 select_next_state: None,
1442 select_prev_state: None,
1443 selection_history: Default::default(),
1444 autoclose_regions: Default::default(),
1445 snippet_stack: Default::default(),
1446 select_larger_syntax_node_stack: Vec::new(),
1447 ime_transaction: Default::default(),
1448 active_diagnostics: None,
1449 soft_wrap_mode_override,
1450 completion_provider: project.clone().map(|project| Box::new(project) as _),
1451 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1452 project,
1453 blink_manager: blink_manager.clone(),
1454 show_local_selections: true,
1455 mode,
1456 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1457 show_gutter: mode == EditorMode::Full,
1458 show_wrap_guides: None,
1459 placeholder_text: None,
1460 highlight_order: 0,
1461 highlighted_rows: HashMap::default(),
1462 background_highlights: Default::default(),
1463 scrollbar_marker_state: ScrollbarMarkerState::default(),
1464 nav_history: None,
1465 context_menu: RwLock::new(None),
1466 mouse_context_menu: None,
1467 completion_tasks: Default::default(),
1468 find_all_references_task_sources: Vec::new(),
1469 next_completion_id: 0,
1470 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1471 next_inlay_id: 0,
1472 available_code_actions: Default::default(),
1473 code_actions_task: Default::default(),
1474 document_highlights_task: Default::default(),
1475 pending_rename: Default::default(),
1476 searchable: true,
1477 cursor_shape: Default::default(),
1478 autoindent_mode: Some(AutoindentMode::EachLine),
1479 collapse_matches: false,
1480 workspace: None,
1481 keymap_context_layers: Default::default(),
1482 input_enabled: true,
1483 use_modal_editing: mode == EditorMode::Full,
1484 read_only: false,
1485 use_autoclose: true,
1486 auto_replace_emoji_shortcode: false,
1487 leader_peer_id: None,
1488 remote_id: None,
1489 hover_state: Default::default(),
1490 hovered_link_state: Default::default(),
1491 inline_completion_provider: None,
1492 active_inline_completion: None,
1493 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1494 gutter_hovered: false,
1495 pixel_position_of_newest_cursor: None,
1496 last_bounds: None,
1497 expect_bounds_change: None,
1498 gutter_width: Default::default(),
1499 style: None,
1500 show_cursor_names: false,
1501 hovered_cursors: Default::default(),
1502 editor_actions: Default::default(),
1503 vim_replace_map: Default::default(),
1504 show_inline_completions: mode == EditorMode::Full,
1505 custom_context_menu: None,
1506 show_git_blame_gutter: false,
1507 show_git_blame_inline: false,
1508 show_git_blame_inline_delay_task: None,
1509 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1510 blame: None,
1511 blame_subscription: None,
1512 _subscriptions: vec![
1513 cx.observe(&buffer, Self::on_buffer_changed),
1514 cx.subscribe(&buffer, Self::on_buffer_event),
1515 cx.observe(&display_map, Self::on_display_map_changed),
1516 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1517 cx.observe_global::<SettingsStore>(Self::settings_changed),
1518 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1519 cx.observe_window_activation(|editor, cx| {
1520 let active = cx.is_window_active();
1521 editor.blink_manager.update(cx, |blink_manager, cx| {
1522 if active {
1523 blink_manager.enable(cx);
1524 } else {
1525 blink_manager.show_cursor(cx);
1526 blink_manager.disable(cx);
1527 }
1528 });
1529 }),
1530 ],
1531 };
1532
1533 this._subscriptions.extend(project_subscriptions);
1534
1535 this.end_selection(cx);
1536 this.scroll_manager.show_scrollbar(cx);
1537
1538 if mode == EditorMode::Full {
1539 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1540 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1541
1542 if this.git_blame_inline_enabled {
1543 this.git_blame_inline_enabled = true;
1544 this.start_git_blame_inline(false, cx);
1545 }
1546 }
1547
1548 this.report_editor_event("open", None, cx);
1549 this
1550 }
1551
1552 fn key_context(&self, cx: &AppContext) -> KeyContext {
1553 let mut key_context = KeyContext::new_with_defaults();
1554 key_context.add("Editor");
1555 let mode = match self.mode {
1556 EditorMode::SingleLine => "single_line",
1557 EditorMode::AutoHeight { .. } => "auto_height",
1558 EditorMode::Full => "full",
1559 };
1560 key_context.set("mode", mode);
1561 if self.pending_rename.is_some() {
1562 key_context.add("renaming");
1563 }
1564 if self.context_menu_visible() {
1565 match self.context_menu.read().as_ref() {
1566 Some(ContextMenu::Completions(_)) => {
1567 key_context.add("menu");
1568 key_context.add("showing_completions")
1569 }
1570 Some(ContextMenu::CodeActions(_)) => {
1571 key_context.add("menu");
1572 key_context.add("showing_code_actions")
1573 }
1574 None => {}
1575 }
1576 }
1577
1578 for layer in self.keymap_context_layers.values() {
1579 key_context.extend(layer);
1580 }
1581
1582 if let Some(extension) = self
1583 .buffer
1584 .read(cx)
1585 .as_singleton()
1586 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1587 {
1588 key_context.set("extension", extension.to_string());
1589 }
1590
1591 if self.has_active_inline_completion(cx) {
1592 key_context.add("copilot_suggestion");
1593 key_context.add("inline_completion");
1594 }
1595
1596 key_context
1597 }
1598
1599 pub fn new_file(
1600 workspace: &mut Workspace,
1601 _: &workspace::NewFile,
1602 cx: &mut ViewContext<Workspace>,
1603 ) {
1604 let project = workspace.project().clone();
1605 if project.read(cx).is_remote() {
1606 cx.propagate();
1607 } else if let Some(buffer) = project
1608 .update(cx, |project, cx| project.create_buffer("", None, cx))
1609 .log_err()
1610 {
1611 workspace.add_item_to_active_pane(
1612 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1613 cx,
1614 );
1615 }
1616 }
1617
1618 pub fn new_file_in_direction(
1619 workspace: &mut Workspace,
1620 action: &workspace::NewFileInDirection,
1621 cx: &mut ViewContext<Workspace>,
1622 ) {
1623 let project = workspace.project().clone();
1624 if project.read(cx).is_remote() {
1625 cx.propagate();
1626 } else if let Some(buffer) = project
1627 .update(cx, |project, cx| project.create_buffer("", None, cx))
1628 .log_err()
1629 {
1630 workspace.split_item(
1631 action.0,
1632 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1633 cx,
1634 );
1635 }
1636 }
1637
1638 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1639 self.buffer.read(cx).replica_id()
1640 }
1641
1642 pub fn leader_peer_id(&self) -> Option<PeerId> {
1643 self.leader_peer_id
1644 }
1645
1646 pub fn buffer(&self) -> &Model<MultiBuffer> {
1647 &self.buffer
1648 }
1649
1650 pub fn workspace(&self) -> Option<View<Workspace>> {
1651 self.workspace.as_ref()?.0.upgrade()
1652 }
1653
1654 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1655 self.buffer().read(cx).title(cx)
1656 }
1657
1658 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1659 EditorSnapshot {
1660 mode: self.mode,
1661 show_gutter: self.show_gutter,
1662 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1663 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1664 scroll_anchor: self.scroll_manager.anchor(),
1665 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1666 placeholder_text: self.placeholder_text.clone(),
1667 is_focused: self.focus_handle.is_focused(cx),
1668 }
1669 }
1670
1671 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1672 self.buffer.read(cx).language_at(point, cx)
1673 }
1674
1675 pub fn file_at<T: ToOffset>(
1676 &self,
1677 point: T,
1678 cx: &AppContext,
1679 ) -> Option<Arc<dyn language::File>> {
1680 self.buffer.read(cx).read(cx).file_at(point).cloned()
1681 }
1682
1683 pub fn active_excerpt(
1684 &self,
1685 cx: &AppContext,
1686 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1687 self.buffer
1688 .read(cx)
1689 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1690 }
1691
1692 pub fn mode(&self) -> EditorMode {
1693 self.mode
1694 }
1695
1696 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1697 self.collaboration_hub.as_deref()
1698 }
1699
1700 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1701 self.collaboration_hub = Some(hub);
1702 }
1703
1704 pub fn set_custom_context_menu(
1705 &mut self,
1706 f: impl 'static
1707 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1708 ) {
1709 self.custom_context_menu = Some(Box::new(f))
1710 }
1711
1712 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1713 self.completion_provider = Some(hub);
1714 }
1715
1716 pub fn set_inline_completion_provider(
1717 &mut self,
1718 provider: Model<impl InlineCompletionProvider>,
1719 cx: &mut ViewContext<Self>,
1720 ) {
1721 self.inline_completion_provider = Some(RegisteredInlineCompletionProvider {
1722 _subscription: cx.observe(&provider, |this, _, cx| {
1723 if this.focus_handle.is_focused(cx) {
1724 this.update_visible_inline_completion(cx);
1725 }
1726 }),
1727 provider: Arc::new(provider),
1728 });
1729 self.refresh_inline_completion(false, cx);
1730 }
1731
1732 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1733 self.placeholder_text.as_deref()
1734 }
1735
1736 pub fn set_placeholder_text(
1737 &mut self,
1738 placeholder_text: impl Into<Arc<str>>,
1739 cx: &mut ViewContext<Self>,
1740 ) {
1741 let placeholder_text = Some(placeholder_text.into());
1742 if self.placeholder_text != placeholder_text {
1743 self.placeholder_text = placeholder_text;
1744 cx.notify();
1745 }
1746 }
1747
1748 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1749 self.cursor_shape = cursor_shape;
1750 cx.notify();
1751 }
1752
1753 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1754 self.collapse_matches = collapse_matches;
1755 }
1756
1757 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1758 if self.collapse_matches {
1759 return range.start..range.start;
1760 }
1761 range.clone()
1762 }
1763
1764 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1765 if self.display_map.read(cx).clip_at_line_ends != clip {
1766 self.display_map
1767 .update(cx, |map, _| map.clip_at_line_ends = clip);
1768 }
1769 }
1770
1771 pub fn set_keymap_context_layer<Tag: 'static>(
1772 &mut self,
1773 context: KeyContext,
1774 cx: &mut ViewContext<Self>,
1775 ) {
1776 self.keymap_context_layers
1777 .insert(TypeId::of::<Tag>(), context);
1778 cx.notify();
1779 }
1780
1781 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1782 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1783 cx.notify();
1784 }
1785
1786 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1787 self.input_enabled = input_enabled;
1788 }
1789
1790 pub fn set_autoindent(&mut self, autoindent: bool) {
1791 if autoindent {
1792 self.autoindent_mode = Some(AutoindentMode::EachLine);
1793 } else {
1794 self.autoindent_mode = None;
1795 }
1796 }
1797
1798 pub fn read_only(&self, cx: &AppContext) -> bool {
1799 self.read_only || self.buffer.read(cx).read_only()
1800 }
1801
1802 pub fn set_read_only(&mut self, read_only: bool) {
1803 self.read_only = read_only;
1804 }
1805
1806 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1807 self.use_autoclose = autoclose;
1808 }
1809
1810 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1811 self.auto_replace_emoji_shortcode = auto_replace;
1812 }
1813
1814 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
1815 self.show_inline_completions = show_inline_completions;
1816 }
1817
1818 pub fn set_use_modal_editing(&mut self, to: bool) {
1819 self.use_modal_editing = to;
1820 }
1821
1822 pub fn use_modal_editing(&self) -> bool {
1823 self.use_modal_editing
1824 }
1825
1826 fn selections_did_change(
1827 &mut self,
1828 local: bool,
1829 old_cursor_position: &Anchor,
1830 cx: &mut ViewContext<Self>,
1831 ) {
1832 // Copy selections to primary selection buffer
1833 #[cfg(target_os = "linux")]
1834 if local {
1835 let selections = self.selections.all::<usize>(cx);
1836 let buffer_handle = self.buffer.read(cx).read(cx);
1837
1838 let mut text = String::new();
1839 for (index, selection) in selections.iter().enumerate() {
1840 let text_for_selection = buffer_handle
1841 .text_for_range(selection.start..selection.end)
1842 .collect::<String>();
1843
1844 text.push_str(&text_for_selection);
1845 if index != selections.len() - 1 {
1846 text.push('\n');
1847 }
1848 }
1849
1850 if !text.is_empty() {
1851 cx.write_to_primary(ClipboardItem::new(text));
1852 }
1853 }
1854
1855 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1856 self.buffer.update(cx, |buffer, cx| {
1857 buffer.set_active_selections(
1858 &self.selections.disjoint_anchors(),
1859 self.selections.line_mode,
1860 self.cursor_shape,
1861 cx,
1862 )
1863 });
1864 }
1865
1866 let display_map = self
1867 .display_map
1868 .update(cx, |display_map, cx| display_map.snapshot(cx));
1869 let buffer = &display_map.buffer_snapshot;
1870 self.add_selections_state = None;
1871 self.select_next_state = None;
1872 self.select_prev_state = None;
1873 self.select_larger_syntax_node_stack.clear();
1874 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1875 self.snippet_stack
1876 .invalidate(&self.selections.disjoint_anchors(), buffer);
1877 self.take_rename(false, cx);
1878
1879 let new_cursor_position = self.selections.newest_anchor().head();
1880
1881 self.push_to_nav_history(
1882 *old_cursor_position,
1883 Some(new_cursor_position.to_point(buffer)),
1884 cx,
1885 );
1886
1887 if local {
1888 let new_cursor_position = self.selections.newest_anchor().head();
1889 let mut context_menu = self.context_menu.write();
1890 let completion_menu = match context_menu.as_ref() {
1891 Some(ContextMenu::Completions(menu)) => Some(menu),
1892
1893 _ => {
1894 *context_menu = None;
1895 None
1896 }
1897 };
1898
1899 if let Some(completion_menu) = completion_menu {
1900 let cursor_position = new_cursor_position.to_offset(buffer);
1901 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1902 if kind == Some(CharKind::Word)
1903 && word_range.to_inclusive().contains(&cursor_position)
1904 {
1905 let mut completion_menu = completion_menu.clone();
1906 drop(context_menu);
1907
1908 let query = Self::completion_query(buffer, cursor_position);
1909 cx.spawn(move |this, mut cx| async move {
1910 completion_menu
1911 .filter(query.as_deref(), cx.background_executor().clone())
1912 .await;
1913
1914 this.update(&mut cx, |this, cx| {
1915 let mut context_menu = this.context_menu.write();
1916 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1917 return;
1918 };
1919
1920 if menu.id > completion_menu.id {
1921 return;
1922 }
1923
1924 *context_menu = Some(ContextMenu::Completions(completion_menu));
1925 drop(context_menu);
1926 cx.notify();
1927 })
1928 })
1929 .detach();
1930
1931 self.show_completions(&ShowCompletions, cx);
1932 } else {
1933 drop(context_menu);
1934 self.hide_context_menu(cx);
1935 }
1936 } else {
1937 drop(context_menu);
1938 }
1939
1940 hide_hover(self, cx);
1941
1942 if old_cursor_position.to_display_point(&display_map).row()
1943 != new_cursor_position.to_display_point(&display_map).row()
1944 {
1945 self.available_code_actions.take();
1946 }
1947 self.refresh_code_actions(cx);
1948 self.refresh_document_highlights(cx);
1949 refresh_matching_bracket_highlights(self, cx);
1950 self.discard_inline_completion(cx);
1951 if self.git_blame_inline_enabled {
1952 self.start_inline_blame_timer(cx);
1953 }
1954 }
1955
1956 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1957 cx.emit(EditorEvent::SelectionsChanged { local });
1958
1959 if self.selections.disjoint_anchors().len() == 1 {
1960 cx.emit(SearchEvent::ActiveMatchChanged)
1961 }
1962
1963 cx.notify();
1964 }
1965
1966 pub fn change_selections<R>(
1967 &mut self,
1968 autoscroll: Option<Autoscroll>,
1969 cx: &mut ViewContext<Self>,
1970 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1971 ) -> R {
1972 let old_cursor_position = self.selections.newest_anchor().head();
1973 self.push_to_selection_history();
1974
1975 let (changed, result) = self.selections.change_with(cx, change);
1976
1977 if changed {
1978 if let Some(autoscroll) = autoscroll {
1979 self.request_autoscroll(autoscroll, cx);
1980 }
1981 self.selections_did_change(true, &old_cursor_position, cx);
1982 }
1983
1984 result
1985 }
1986
1987 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1988 where
1989 I: IntoIterator<Item = (Range<S>, T)>,
1990 S: ToOffset,
1991 T: Into<Arc<str>>,
1992 {
1993 if self.read_only(cx) {
1994 return;
1995 }
1996
1997 self.buffer
1998 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1999 }
2000
2001 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2002 where
2003 I: IntoIterator<Item = (Range<S>, T)>,
2004 S: ToOffset,
2005 T: Into<Arc<str>>,
2006 {
2007 if self.read_only(cx) {
2008 return;
2009 }
2010
2011 self.buffer.update(cx, |buffer, cx| {
2012 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2013 });
2014 }
2015
2016 pub fn edit_with_block_indent<I, S, T>(
2017 &mut self,
2018 edits: I,
2019 original_indent_columns: Vec<u32>,
2020 cx: &mut ViewContext<Self>,
2021 ) where
2022 I: IntoIterator<Item = (Range<S>, T)>,
2023 S: ToOffset,
2024 T: Into<Arc<str>>,
2025 {
2026 if self.read_only(cx) {
2027 return;
2028 }
2029
2030 self.buffer.update(cx, |buffer, cx| {
2031 buffer.edit(
2032 edits,
2033 Some(AutoindentMode::Block {
2034 original_indent_columns,
2035 }),
2036 cx,
2037 )
2038 });
2039 }
2040
2041 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2042 self.hide_context_menu(cx);
2043
2044 match phase {
2045 SelectPhase::Begin {
2046 position,
2047 add,
2048 click_count,
2049 } => self.begin_selection(position, add, click_count, cx),
2050 SelectPhase::BeginColumnar {
2051 position,
2052 goal_column,
2053 } => self.begin_columnar_selection(position, goal_column, cx),
2054 SelectPhase::Extend {
2055 position,
2056 click_count,
2057 } => self.extend_selection(position, click_count, cx),
2058 SelectPhase::Update {
2059 position,
2060 goal_column,
2061 scroll_delta,
2062 } => self.update_selection(position, goal_column, scroll_delta, cx),
2063 SelectPhase::End => self.end_selection(cx),
2064 }
2065 }
2066
2067 fn extend_selection(
2068 &mut self,
2069 position: DisplayPoint,
2070 click_count: usize,
2071 cx: &mut ViewContext<Self>,
2072 ) {
2073 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2074 let tail = self.selections.newest::<usize>(cx).tail();
2075 self.begin_selection(position, false, click_count, cx);
2076
2077 let position = position.to_offset(&display_map, Bias::Left);
2078 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2079
2080 let mut pending_selection = self
2081 .selections
2082 .pending_anchor()
2083 .expect("extend_selection not called with pending selection");
2084 if position >= tail {
2085 pending_selection.start = tail_anchor;
2086 } else {
2087 pending_selection.end = tail_anchor;
2088 pending_selection.reversed = true;
2089 }
2090
2091 let mut pending_mode = self.selections.pending_mode().unwrap();
2092 match &mut pending_mode {
2093 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2094 _ => {}
2095 }
2096
2097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2098 s.set_pending(pending_selection, pending_mode)
2099 });
2100 }
2101
2102 fn begin_selection(
2103 &mut self,
2104 position: DisplayPoint,
2105 add: bool,
2106 click_count: usize,
2107 cx: &mut ViewContext<Self>,
2108 ) {
2109 if !self.focus_handle.is_focused(cx) {
2110 cx.focus(&self.focus_handle);
2111 }
2112
2113 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2114 let buffer = &display_map.buffer_snapshot;
2115 let newest_selection = self.selections.newest_anchor().clone();
2116 let position = display_map.clip_point(position, Bias::Left);
2117
2118 let start;
2119 let end;
2120 let mode;
2121 let auto_scroll;
2122 match click_count {
2123 1 => {
2124 start = buffer.anchor_before(position.to_point(&display_map));
2125 end = start;
2126 mode = SelectMode::Character;
2127 auto_scroll = true;
2128 }
2129 2 => {
2130 let range = movement::surrounding_word(&display_map, position);
2131 start = buffer.anchor_before(range.start.to_point(&display_map));
2132 end = buffer.anchor_before(range.end.to_point(&display_map));
2133 mode = SelectMode::Word(start..end);
2134 auto_scroll = true;
2135 }
2136 3 => {
2137 let position = display_map
2138 .clip_point(position, Bias::Left)
2139 .to_point(&display_map);
2140 let line_start = display_map.prev_line_boundary(position).0;
2141 let next_line_start = buffer.clip_point(
2142 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2143 Bias::Left,
2144 );
2145 start = buffer.anchor_before(line_start);
2146 end = buffer.anchor_before(next_line_start);
2147 mode = SelectMode::Line(start..end);
2148 auto_scroll = true;
2149 }
2150 _ => {
2151 start = buffer.anchor_before(0);
2152 end = buffer.anchor_before(buffer.len());
2153 mode = SelectMode::All;
2154 auto_scroll = false;
2155 }
2156 }
2157
2158 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2159 if !add {
2160 s.clear_disjoint();
2161 } else if click_count > 1 {
2162 s.delete(newest_selection.id)
2163 }
2164
2165 s.set_pending_anchor_range(start..end, mode);
2166 });
2167 }
2168
2169 fn begin_columnar_selection(
2170 &mut self,
2171 position: DisplayPoint,
2172 goal_column: u32,
2173 cx: &mut ViewContext<Self>,
2174 ) {
2175 if !self.focus_handle.is_focused(cx) {
2176 cx.focus(&self.focus_handle);
2177 }
2178
2179 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2180 let tail = self.selections.newest::<Point>(cx).tail();
2181 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2182
2183 self.select_columns(
2184 tail.to_display_point(&display_map),
2185 position,
2186 goal_column,
2187 &display_map,
2188 cx,
2189 );
2190 }
2191
2192 fn update_selection(
2193 &mut self,
2194 position: DisplayPoint,
2195 goal_column: u32,
2196 scroll_delta: gpui::Point<f32>,
2197 cx: &mut ViewContext<Self>,
2198 ) {
2199 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2200
2201 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2202 let tail = tail.to_display_point(&display_map);
2203 self.select_columns(tail, position, goal_column, &display_map, cx);
2204 } else if let Some(mut pending) = self.selections.pending_anchor() {
2205 let buffer = self.buffer.read(cx).snapshot(cx);
2206 let head;
2207 let tail;
2208 let mode = self.selections.pending_mode().unwrap();
2209 match &mode {
2210 SelectMode::Character => {
2211 head = position.to_point(&display_map);
2212 tail = pending.tail().to_point(&buffer);
2213 }
2214 SelectMode::Word(original_range) => {
2215 let original_display_range = original_range.start.to_display_point(&display_map)
2216 ..original_range.end.to_display_point(&display_map);
2217 let original_buffer_range = original_display_range.start.to_point(&display_map)
2218 ..original_display_range.end.to_point(&display_map);
2219 if movement::is_inside_word(&display_map, position)
2220 || original_display_range.contains(&position)
2221 {
2222 let word_range = movement::surrounding_word(&display_map, position);
2223 if word_range.start < original_display_range.start {
2224 head = word_range.start.to_point(&display_map);
2225 } else {
2226 head = word_range.end.to_point(&display_map);
2227 }
2228 } else {
2229 head = position.to_point(&display_map);
2230 }
2231
2232 if head <= original_buffer_range.start {
2233 tail = original_buffer_range.end;
2234 } else {
2235 tail = original_buffer_range.start;
2236 }
2237 }
2238 SelectMode::Line(original_range) => {
2239 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2240
2241 let position = display_map
2242 .clip_point(position, Bias::Left)
2243 .to_point(&display_map);
2244 let line_start = display_map.prev_line_boundary(position).0;
2245 let next_line_start = buffer.clip_point(
2246 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2247 Bias::Left,
2248 );
2249
2250 if line_start < original_range.start {
2251 head = line_start
2252 } else {
2253 head = next_line_start
2254 }
2255
2256 if head <= original_range.start {
2257 tail = original_range.end;
2258 } else {
2259 tail = original_range.start;
2260 }
2261 }
2262 SelectMode::All => {
2263 return;
2264 }
2265 };
2266
2267 if head < tail {
2268 pending.start = buffer.anchor_before(head);
2269 pending.end = buffer.anchor_before(tail);
2270 pending.reversed = true;
2271 } else {
2272 pending.start = buffer.anchor_before(tail);
2273 pending.end = buffer.anchor_before(head);
2274 pending.reversed = false;
2275 }
2276
2277 self.change_selections(None, cx, |s| {
2278 s.set_pending(pending, mode);
2279 });
2280 } else {
2281 log::error!("update_selection dispatched with no pending selection");
2282 return;
2283 }
2284
2285 self.apply_scroll_delta(scroll_delta, cx);
2286 cx.notify();
2287 }
2288
2289 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2290 self.columnar_selection_tail.take();
2291 if self.selections.pending_anchor().is_some() {
2292 let selections = self.selections.all::<usize>(cx);
2293 self.change_selections(None, cx, |s| {
2294 s.select(selections);
2295 s.clear_pending();
2296 });
2297 }
2298 }
2299
2300 fn select_columns(
2301 &mut self,
2302 tail: DisplayPoint,
2303 head: DisplayPoint,
2304 goal_column: u32,
2305 display_map: &DisplaySnapshot,
2306 cx: &mut ViewContext<Self>,
2307 ) {
2308 let start_row = cmp::min(tail.row(), head.row());
2309 let end_row = cmp::max(tail.row(), head.row());
2310 let start_column = cmp::min(tail.column(), goal_column);
2311 let end_column = cmp::max(tail.column(), goal_column);
2312 let reversed = start_column < tail.column();
2313
2314 let selection_ranges = (start_row..=end_row)
2315 .filter_map(|row| {
2316 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2317 let start = display_map
2318 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2319 .to_point(display_map);
2320 let end = display_map
2321 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2322 .to_point(display_map);
2323 if reversed {
2324 Some(end..start)
2325 } else {
2326 Some(start..end)
2327 }
2328 } else {
2329 None
2330 }
2331 })
2332 .collect::<Vec<_>>();
2333
2334 self.change_selections(None, cx, |s| {
2335 s.select_ranges(selection_ranges);
2336 });
2337 cx.notify();
2338 }
2339
2340 pub fn has_pending_nonempty_selection(&self) -> bool {
2341 let pending_nonempty_selection = match self.selections.pending_anchor() {
2342 Some(Selection { start, end, .. }) => start != end,
2343 None => false,
2344 };
2345 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2346 }
2347
2348 pub fn has_pending_selection(&self) -> bool {
2349 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2350 }
2351
2352 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2353 if self.dismiss_menus_and_popups(cx) {
2354 return;
2355 }
2356
2357 if self.mode == EditorMode::Full {
2358 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2359 return;
2360 }
2361 }
2362
2363 cx.propagate();
2364 }
2365
2366 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2367 if self.take_rename(false, cx).is_some() {
2368 return true;
2369 }
2370
2371 if hide_hover(self, cx) {
2372 return true;
2373 }
2374
2375 if self.hide_context_menu(cx).is_some() {
2376 return true;
2377 }
2378
2379 if self.discard_inline_completion(cx) {
2380 return true;
2381 }
2382
2383 if self.snippet_stack.pop().is_some() {
2384 return true;
2385 }
2386
2387 if self.mode == EditorMode::Full {
2388 if self.active_diagnostics.is_some() {
2389 self.dismiss_diagnostics(cx);
2390 return true;
2391 }
2392 }
2393
2394 false
2395 }
2396
2397 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2398 let text: Arc<str> = text.into();
2399
2400 if self.read_only(cx) {
2401 return;
2402 }
2403
2404 let selections = self.selections.all_adjusted(cx);
2405 let mut brace_inserted = false;
2406 let mut edits = Vec::new();
2407 let mut new_selections = Vec::with_capacity(selections.len());
2408 let mut new_autoclose_regions = Vec::new();
2409 let snapshot = self.buffer.read(cx).read(cx);
2410
2411 for (selection, autoclose_region) in
2412 self.selections_with_autoclose_regions(selections, &snapshot)
2413 {
2414 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2415 // Determine if the inserted text matches the opening or closing
2416 // bracket of any of this language's bracket pairs.
2417 let mut bracket_pair = None;
2418 let mut is_bracket_pair_start = false;
2419 let mut is_bracket_pair_end = false;
2420 if !text.is_empty() {
2421 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2422 // and they are removing the character that triggered IME popup.
2423 for (pair, enabled) in scope.brackets() {
2424 if !pair.close {
2425 continue;
2426 }
2427
2428 if enabled && pair.start.ends_with(text.as_ref()) {
2429 bracket_pair = Some(pair.clone());
2430 is_bracket_pair_start = true;
2431 break;
2432 }
2433 if pair.end.as_str() == text.as_ref() {
2434 bracket_pair = Some(pair.clone());
2435 is_bracket_pair_end = true;
2436 break;
2437 }
2438 }
2439 }
2440
2441 if let Some(bracket_pair) = bracket_pair {
2442 if selection.is_empty() {
2443 if is_bracket_pair_start {
2444 let prefix_len = bracket_pair.start.len() - text.len();
2445
2446 // If the inserted text is a suffix of an opening bracket and the
2447 // selection is preceded by the rest of the opening bracket, then
2448 // insert the closing bracket.
2449 let following_text_allows_autoclose = snapshot
2450 .chars_at(selection.start)
2451 .next()
2452 .map_or(true, |c| scope.should_autoclose_before(c));
2453 let preceding_text_matches_prefix = prefix_len == 0
2454 || (selection.start.column >= (prefix_len as u32)
2455 && snapshot.contains_str_at(
2456 Point::new(
2457 selection.start.row,
2458 selection.start.column - (prefix_len as u32),
2459 ),
2460 &bracket_pair.start[..prefix_len],
2461 ));
2462 let autoclose = self.use_autoclose
2463 && snapshot.settings_at(selection.start, cx).use_autoclose;
2464 if autoclose
2465 && following_text_allows_autoclose
2466 && preceding_text_matches_prefix
2467 {
2468 let anchor = snapshot.anchor_before(selection.end);
2469 new_selections.push((selection.map(|_| anchor), text.len()));
2470 new_autoclose_regions.push((
2471 anchor,
2472 text.len(),
2473 selection.id,
2474 bracket_pair.clone(),
2475 ));
2476 edits.push((
2477 selection.range(),
2478 format!("{}{}", text, bracket_pair.end).into(),
2479 ));
2480 brace_inserted = true;
2481 continue;
2482 }
2483 }
2484
2485 if let Some(region) = autoclose_region {
2486 // If the selection is followed by an auto-inserted closing bracket,
2487 // then don't insert that closing bracket again; just move the selection
2488 // past the closing bracket.
2489 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2490 && text.as_ref() == region.pair.end.as_str();
2491 if should_skip {
2492 let anchor = snapshot.anchor_after(selection.end);
2493 new_selections
2494 .push((selection.map(|_| anchor), region.pair.end.len()));
2495 continue;
2496 }
2497 }
2498
2499 let always_treat_brackets_as_autoclosed = snapshot
2500 .settings_at(selection.start, cx)
2501 .always_treat_brackets_as_autoclosed;
2502 if always_treat_brackets_as_autoclosed
2503 && is_bracket_pair_end
2504 && snapshot.contains_str_at(selection.end, text.as_ref())
2505 {
2506 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2507 // and the inserted text is a closing bracket and the selection is followed
2508 // by the closing bracket then move the selection past the closing bracket.
2509 let anchor = snapshot.anchor_after(selection.end);
2510 new_selections.push((selection.map(|_| anchor), text.len()));
2511 continue;
2512 }
2513 }
2514 // If an opening bracket is 1 character long and is typed while
2515 // text is selected, then surround that text with the bracket pair.
2516 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2517 edits.push((selection.start..selection.start, text.clone()));
2518 edits.push((
2519 selection.end..selection.end,
2520 bracket_pair.end.as_str().into(),
2521 ));
2522 brace_inserted = true;
2523 new_selections.push((
2524 Selection {
2525 id: selection.id,
2526 start: snapshot.anchor_after(selection.start),
2527 end: snapshot.anchor_before(selection.end),
2528 reversed: selection.reversed,
2529 goal: selection.goal,
2530 },
2531 0,
2532 ));
2533 continue;
2534 }
2535 }
2536 }
2537
2538 if self.auto_replace_emoji_shortcode
2539 && selection.is_empty()
2540 && text.as_ref().ends_with(':')
2541 {
2542 if let Some(possible_emoji_short_code) =
2543 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2544 {
2545 if !possible_emoji_short_code.is_empty() {
2546 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2547 let emoji_shortcode_start = Point::new(
2548 selection.start.row,
2549 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2550 );
2551
2552 // Remove shortcode from buffer
2553 edits.push((
2554 emoji_shortcode_start..selection.start,
2555 "".to_string().into(),
2556 ));
2557 new_selections.push((
2558 Selection {
2559 id: selection.id,
2560 start: snapshot.anchor_after(emoji_shortcode_start),
2561 end: snapshot.anchor_before(selection.start),
2562 reversed: selection.reversed,
2563 goal: selection.goal,
2564 },
2565 0,
2566 ));
2567
2568 // Insert emoji
2569 let selection_start_anchor = snapshot.anchor_after(selection.start);
2570 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2571 edits.push((selection.start..selection.end, emoji.to_string().into()));
2572
2573 continue;
2574 }
2575 }
2576 }
2577 }
2578
2579 // If not handling any auto-close operation, then just replace the selected
2580 // text with the given input and move the selection to the end of the
2581 // newly inserted text.
2582 let anchor = snapshot.anchor_after(selection.end);
2583 new_selections.push((selection.map(|_| anchor), 0));
2584 edits.push((selection.start..selection.end, text.clone()));
2585 }
2586
2587 drop(snapshot);
2588 self.transact(cx, |this, cx| {
2589 this.buffer.update(cx, |buffer, cx| {
2590 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2591 });
2592
2593 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2594 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2595 let snapshot = this.buffer.read(cx).read(cx);
2596 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2597 .zip(new_selection_deltas)
2598 .map(|(selection, delta)| Selection {
2599 id: selection.id,
2600 start: selection.start + delta,
2601 end: selection.end + delta,
2602 reversed: selection.reversed,
2603 goal: SelectionGoal::None,
2604 })
2605 .collect::<Vec<_>>();
2606
2607 let mut i = 0;
2608 for (position, delta, selection_id, pair) in new_autoclose_regions {
2609 let position = position.to_offset(&snapshot) + delta;
2610 let start = snapshot.anchor_before(position);
2611 let end = snapshot.anchor_after(position);
2612 while let Some(existing_state) = this.autoclose_regions.get(i) {
2613 match existing_state.range.start.cmp(&start, &snapshot) {
2614 Ordering::Less => i += 1,
2615 Ordering::Greater => break,
2616 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2617 Ordering::Less => i += 1,
2618 Ordering::Equal => break,
2619 Ordering::Greater => break,
2620 },
2621 }
2622 }
2623 this.autoclose_regions.insert(
2624 i,
2625 AutocloseRegion {
2626 selection_id,
2627 range: start..end,
2628 pair,
2629 },
2630 );
2631 }
2632
2633 drop(snapshot);
2634 let had_active_copilot_completion = this.has_active_inline_completion(cx);
2635 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2636
2637 if brace_inserted {
2638 // If we inserted a brace while composing text (i.e. typing `"` on a
2639 // Brazilian keyboard), exit the composing state because most likely
2640 // the user wanted to surround the selection.
2641 this.unmark_text(cx);
2642 } else if EditorSettings::get_global(cx).use_on_type_format {
2643 if let Some(on_type_format_task) =
2644 this.trigger_on_type_formatting(text.to_string(), cx)
2645 {
2646 on_type_format_task.detach_and_log_err(cx);
2647 }
2648 }
2649
2650 if had_active_copilot_completion {
2651 this.refresh_inline_completion(true, cx);
2652 if !this.has_active_inline_completion(cx) {
2653 this.trigger_completion_on_input(&text, cx);
2654 }
2655 } else {
2656 this.trigger_completion_on_input(&text, cx);
2657 this.refresh_inline_completion(true, cx);
2658 }
2659 });
2660 }
2661
2662 fn find_possible_emoji_shortcode_at_position(
2663 snapshot: &MultiBufferSnapshot,
2664 position: Point,
2665 ) -> Option<String> {
2666 let mut chars = Vec::new();
2667 let mut found_colon = false;
2668 for char in snapshot.reversed_chars_at(position).take(100) {
2669 // Found a possible emoji shortcode in the middle of the buffer
2670 if found_colon {
2671 if char.is_whitespace() {
2672 chars.reverse();
2673 return Some(chars.iter().collect());
2674 }
2675 // If the previous character is not a whitespace, we are in the middle of a word
2676 // and we only want to complete the shortcode if the word is made up of other emojis
2677 let mut containing_word = String::new();
2678 for ch in snapshot
2679 .reversed_chars_at(position)
2680 .skip(chars.len() + 1)
2681 .take(100)
2682 {
2683 if ch.is_whitespace() {
2684 break;
2685 }
2686 containing_word.push(ch);
2687 }
2688 let containing_word = containing_word.chars().rev().collect::<String>();
2689 if util::word_consists_of_emojis(containing_word.as_str()) {
2690 chars.reverse();
2691 return Some(chars.iter().collect());
2692 }
2693 }
2694
2695 if char.is_whitespace() || !char.is_ascii() {
2696 return None;
2697 }
2698 if char == ':' {
2699 found_colon = true;
2700 } else {
2701 chars.push(char);
2702 }
2703 }
2704 // Found a possible emoji shortcode at the beginning of the buffer
2705 chars.reverse();
2706 Some(chars.iter().collect())
2707 }
2708
2709 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2710 self.transact(cx, |this, cx| {
2711 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2712 let selections = this.selections.all::<usize>(cx);
2713 let multi_buffer = this.buffer.read(cx);
2714 let buffer = multi_buffer.snapshot(cx);
2715 selections
2716 .iter()
2717 .map(|selection| {
2718 let start_point = selection.start.to_point(&buffer);
2719 let mut indent = buffer.indent_size_for_line(start_point.row);
2720 indent.len = cmp::min(indent.len, start_point.column);
2721 let start = selection.start;
2722 let end = selection.end;
2723 let is_cursor = start == end;
2724 let language_scope = buffer.language_scope_at(start);
2725 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2726 &language_scope
2727 {
2728 let leading_whitespace_len = buffer
2729 .reversed_chars_at(start)
2730 .take_while(|c| c.is_whitespace() && *c != '\n')
2731 .map(|c| c.len_utf8())
2732 .sum::<usize>();
2733
2734 let trailing_whitespace_len = buffer
2735 .chars_at(end)
2736 .take_while(|c| c.is_whitespace() && *c != '\n')
2737 .map(|c| c.len_utf8())
2738 .sum::<usize>();
2739
2740 let insert_extra_newline =
2741 language.brackets().any(|(pair, enabled)| {
2742 let pair_start = pair.start.trim_end();
2743 let pair_end = pair.end.trim_start();
2744
2745 enabled
2746 && pair.newline
2747 && buffer.contains_str_at(
2748 end + trailing_whitespace_len,
2749 pair_end,
2750 )
2751 && buffer.contains_str_at(
2752 (start - leading_whitespace_len)
2753 .saturating_sub(pair_start.len()),
2754 pair_start,
2755 )
2756 });
2757 // Comment extension on newline is allowed only for cursor selections
2758 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2759 let is_comment_extension_enabled =
2760 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2761 is_cursor && is_comment_extension_enabled
2762 });
2763 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2764 let max_len_of_delimiter =
2765 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2766 let (snapshot, range) =
2767 buffer.buffer_line_for_row(start_point.row)?;
2768
2769 let mut index_of_first_non_whitespace = 0;
2770 let comment_candidate = snapshot
2771 .chars_for_range(range)
2772 .skip_while(|c| {
2773 let should_skip = c.is_whitespace();
2774 if should_skip {
2775 index_of_first_non_whitespace += 1;
2776 }
2777 should_skip
2778 })
2779 .take(max_len_of_delimiter)
2780 .collect::<String>();
2781 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2782 comment_candidate.starts_with(comment_prefix.as_ref())
2783 })?;
2784 let cursor_is_placed_after_comment_marker =
2785 index_of_first_non_whitespace + comment_prefix.len()
2786 <= start_point.column as usize;
2787 if cursor_is_placed_after_comment_marker {
2788 Some(comment_prefix.clone())
2789 } else {
2790 None
2791 }
2792 };
2793 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2794 get_comment_delimiter(delimiters)
2795 } else {
2796 None
2797 };
2798 (comment_delimiter, insert_extra_newline)
2799 } else {
2800 (None, false)
2801 };
2802
2803 let capacity_for_delimiter = comment_delimiter
2804 .as_deref()
2805 .map(str::len)
2806 .unwrap_or_default();
2807 let mut new_text =
2808 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2809 new_text.push_str("\n");
2810 new_text.extend(indent.chars());
2811 if let Some(delimiter) = &comment_delimiter {
2812 new_text.push_str(&delimiter);
2813 }
2814 if insert_extra_newline {
2815 new_text = new_text.repeat(2);
2816 }
2817
2818 let anchor = buffer.anchor_after(end);
2819 let new_selection = selection.map(|_| anchor);
2820 (
2821 (start..end, new_text),
2822 (insert_extra_newline, new_selection),
2823 )
2824 })
2825 .unzip()
2826 };
2827
2828 this.edit_with_autoindent(edits, cx);
2829 let buffer = this.buffer.read(cx).snapshot(cx);
2830 let new_selections = selection_fixup_info
2831 .into_iter()
2832 .map(|(extra_newline_inserted, new_selection)| {
2833 let mut cursor = new_selection.end.to_point(&buffer);
2834 if extra_newline_inserted {
2835 cursor.row -= 1;
2836 cursor.column = buffer.line_len(cursor.row);
2837 }
2838 new_selection.map(|_| cursor)
2839 })
2840 .collect();
2841
2842 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2843 this.refresh_inline_completion(true, cx);
2844 });
2845 }
2846
2847 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2848 let buffer = self.buffer.read(cx);
2849 let snapshot = buffer.snapshot(cx);
2850
2851 let mut edits = Vec::new();
2852 let mut rows = Vec::new();
2853
2854 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2855 let cursor = selection.head();
2856 let row = cursor.row;
2857
2858 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2859
2860 let newline = "\n".to_string();
2861 edits.push((start_of_line..start_of_line, newline));
2862
2863 rows.push(row + rows_inserted as u32);
2864 }
2865
2866 self.transact(cx, |editor, cx| {
2867 editor.edit(edits, cx);
2868
2869 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2870 let mut index = 0;
2871 s.move_cursors_with(|map, _, _| {
2872 let row = rows[index];
2873 index += 1;
2874
2875 let point = Point::new(row, 0);
2876 let boundary = map.next_line_boundary(point).1;
2877 let clipped = map.clip_point(boundary, Bias::Left);
2878
2879 (clipped, SelectionGoal::None)
2880 });
2881 });
2882
2883 let mut indent_edits = Vec::new();
2884 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2885 for row in rows {
2886 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2887 for (row, indent) in indents {
2888 if indent.len == 0 {
2889 continue;
2890 }
2891
2892 let text = match indent.kind {
2893 IndentKind::Space => " ".repeat(indent.len as usize),
2894 IndentKind::Tab => "\t".repeat(indent.len as usize),
2895 };
2896 let point = Point::new(row, 0);
2897 indent_edits.push((point..point, text));
2898 }
2899 }
2900 editor.edit(indent_edits, cx);
2901 });
2902 }
2903
2904 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2905 let buffer = self.buffer.read(cx);
2906 let snapshot = buffer.snapshot(cx);
2907
2908 let mut edits = Vec::new();
2909 let mut rows = Vec::new();
2910 let mut rows_inserted = 0;
2911
2912 for selection in self.selections.all_adjusted(cx) {
2913 let cursor = selection.head();
2914 let row = cursor.row;
2915
2916 let point = Point::new(row + 1, 0);
2917 let start_of_line = snapshot.clip_point(point, Bias::Left);
2918
2919 let newline = "\n".to_string();
2920 edits.push((start_of_line..start_of_line, newline));
2921
2922 rows_inserted += 1;
2923 rows.push(row + rows_inserted);
2924 }
2925
2926 self.transact(cx, |editor, cx| {
2927 editor.edit(edits, cx);
2928
2929 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2930 let mut index = 0;
2931 s.move_cursors_with(|map, _, _| {
2932 let row = rows[index];
2933 index += 1;
2934
2935 let point = Point::new(row, 0);
2936 let boundary = map.next_line_boundary(point).1;
2937 let clipped = map.clip_point(boundary, Bias::Left);
2938
2939 (clipped, SelectionGoal::None)
2940 });
2941 });
2942
2943 let mut indent_edits = Vec::new();
2944 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2945 for row in rows {
2946 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2947 for (row, indent) in indents {
2948 if indent.len == 0 {
2949 continue;
2950 }
2951
2952 let text = match indent.kind {
2953 IndentKind::Space => " ".repeat(indent.len as usize),
2954 IndentKind::Tab => "\t".repeat(indent.len as usize),
2955 };
2956 let point = Point::new(row, 0);
2957 indent_edits.push((point..point, text));
2958 }
2959 }
2960 editor.edit(indent_edits, cx);
2961 });
2962 }
2963
2964 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2965 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
2966 original_indent_columns: Vec::new(),
2967 });
2968 self.insert_with_autoindent_mode(text, autoindent, cx);
2969 }
2970
2971 fn insert_with_autoindent_mode(
2972 &mut self,
2973 text: &str,
2974 autoindent_mode: Option<AutoindentMode>,
2975 cx: &mut ViewContext<Self>,
2976 ) {
2977 if self.read_only(cx) {
2978 return;
2979 }
2980
2981 let text: Arc<str> = text.into();
2982 self.transact(cx, |this, cx| {
2983 let old_selections = this.selections.all_adjusted(cx);
2984 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2985 let anchors = {
2986 let snapshot = buffer.read(cx);
2987 old_selections
2988 .iter()
2989 .map(|s| {
2990 let anchor = snapshot.anchor_after(s.head());
2991 s.map(|_| anchor)
2992 })
2993 .collect::<Vec<_>>()
2994 };
2995 buffer.edit(
2996 old_selections
2997 .iter()
2998 .map(|s| (s.start..s.end, text.clone())),
2999 autoindent_mode,
3000 cx,
3001 );
3002 anchors
3003 });
3004
3005 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3006 s.select_anchors(selection_anchors);
3007 })
3008 });
3009 }
3010
3011 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3012 if !EditorSettings::get_global(cx).show_completions_on_input {
3013 return;
3014 }
3015
3016 let selection = self.selections.newest_anchor();
3017 if self
3018 .buffer
3019 .read(cx)
3020 .is_completion_trigger(selection.head(), text, cx)
3021 {
3022 self.show_completions(&ShowCompletions, cx);
3023 } else {
3024 self.hide_context_menu(cx);
3025 }
3026 }
3027
3028 /// If any empty selections is touching the start of its innermost containing autoclose
3029 /// region, expand it to select the brackets.
3030 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3031 let selections = self.selections.all::<usize>(cx);
3032 let buffer = self.buffer.read(cx).read(cx);
3033 let new_selections = self
3034 .selections_with_autoclose_regions(selections, &buffer)
3035 .map(|(mut selection, region)| {
3036 if !selection.is_empty() {
3037 return selection;
3038 }
3039
3040 if let Some(region) = region {
3041 let mut range = region.range.to_offset(&buffer);
3042 if selection.start == range.start && range.start >= region.pair.start.len() {
3043 range.start -= region.pair.start.len();
3044 if buffer.contains_str_at(range.start, ®ion.pair.start)
3045 && buffer.contains_str_at(range.end, ®ion.pair.end)
3046 {
3047 range.end += region.pair.end.len();
3048 selection.start = range.start;
3049 selection.end = range.end;
3050
3051 return selection;
3052 }
3053 }
3054 }
3055
3056 let always_treat_brackets_as_autoclosed = buffer
3057 .settings_at(selection.start, cx)
3058 .always_treat_brackets_as_autoclosed;
3059
3060 if !always_treat_brackets_as_autoclosed {
3061 return selection;
3062 }
3063
3064 if let Some(scope) = buffer.language_scope_at(selection.start) {
3065 for (pair, enabled) in scope.brackets() {
3066 if !enabled || !pair.close {
3067 continue;
3068 }
3069
3070 if buffer.contains_str_at(selection.start, &pair.end) {
3071 let pair_start_len = pair.start.len();
3072 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3073 {
3074 selection.start -= pair_start_len;
3075 selection.end += pair.end.len();
3076
3077 return selection;
3078 }
3079 }
3080 }
3081 }
3082
3083 selection
3084 })
3085 .collect();
3086
3087 drop(buffer);
3088 self.change_selections(None, cx, |selections| selections.select(new_selections));
3089 }
3090
3091 /// Iterate the given selections, and for each one, find the smallest surrounding
3092 /// autoclose region. This uses the ordering of the selections and the autoclose
3093 /// regions to avoid repeated comparisons.
3094 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3095 &'a self,
3096 selections: impl IntoIterator<Item = Selection<D>>,
3097 buffer: &'a MultiBufferSnapshot,
3098 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3099 let mut i = 0;
3100 let mut regions = self.autoclose_regions.as_slice();
3101 selections.into_iter().map(move |selection| {
3102 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3103
3104 let mut enclosing = None;
3105 while let Some(pair_state) = regions.get(i) {
3106 if pair_state.range.end.to_offset(buffer) < range.start {
3107 regions = ®ions[i + 1..];
3108 i = 0;
3109 } else if pair_state.range.start.to_offset(buffer) > range.end {
3110 break;
3111 } else {
3112 if pair_state.selection_id == selection.id {
3113 enclosing = Some(pair_state);
3114 }
3115 i += 1;
3116 }
3117 }
3118
3119 (selection.clone(), enclosing)
3120 })
3121 }
3122
3123 /// Remove any autoclose regions that no longer contain their selection.
3124 fn invalidate_autoclose_regions(
3125 &mut self,
3126 mut selections: &[Selection<Anchor>],
3127 buffer: &MultiBufferSnapshot,
3128 ) {
3129 self.autoclose_regions.retain(|state| {
3130 let mut i = 0;
3131 while let Some(selection) = selections.get(i) {
3132 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3133 selections = &selections[1..];
3134 continue;
3135 }
3136 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3137 break;
3138 }
3139 if selection.id == state.selection_id {
3140 return true;
3141 } else {
3142 i += 1;
3143 }
3144 }
3145 false
3146 });
3147 }
3148
3149 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3150 let offset = position.to_offset(buffer);
3151 let (word_range, kind) = buffer.surrounding_word(offset);
3152 if offset > word_range.start && kind == Some(CharKind::Word) {
3153 Some(
3154 buffer
3155 .text_for_range(word_range.start..offset)
3156 .collect::<String>(),
3157 )
3158 } else {
3159 None
3160 }
3161 }
3162
3163 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3164 self.refresh_inlay_hints(
3165 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3166 cx,
3167 );
3168 }
3169
3170 pub fn inlay_hints_enabled(&self) -> bool {
3171 self.inlay_hint_cache.enabled
3172 }
3173
3174 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3175 if self.project.is_none() || self.mode != EditorMode::Full {
3176 return;
3177 }
3178
3179 let reason_description = reason.description();
3180 let ignore_debounce = matches!(
3181 reason,
3182 InlayHintRefreshReason::SettingsChange(_)
3183 | InlayHintRefreshReason::Toggle(_)
3184 | InlayHintRefreshReason::ExcerptsRemoved(_)
3185 );
3186 let (invalidate_cache, required_languages) = match reason {
3187 InlayHintRefreshReason::Toggle(enabled) => {
3188 self.inlay_hint_cache.enabled = enabled;
3189 if enabled {
3190 (InvalidationStrategy::RefreshRequested, None)
3191 } else {
3192 self.inlay_hint_cache.clear();
3193 self.splice_inlays(
3194 self.visible_inlay_hints(cx)
3195 .iter()
3196 .map(|inlay| inlay.id)
3197 .collect(),
3198 Vec::new(),
3199 cx,
3200 );
3201 return;
3202 }
3203 }
3204 InlayHintRefreshReason::SettingsChange(new_settings) => {
3205 match self.inlay_hint_cache.update_settings(
3206 &self.buffer,
3207 new_settings,
3208 self.visible_inlay_hints(cx),
3209 cx,
3210 ) {
3211 ControlFlow::Break(Some(InlaySplice {
3212 to_remove,
3213 to_insert,
3214 })) => {
3215 self.splice_inlays(to_remove, to_insert, cx);
3216 return;
3217 }
3218 ControlFlow::Break(None) => return,
3219 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3220 }
3221 }
3222 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3223 if let Some(InlaySplice {
3224 to_remove,
3225 to_insert,
3226 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3227 {
3228 self.splice_inlays(to_remove, to_insert, cx);
3229 }
3230 return;
3231 }
3232 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3233 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3234 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3235 }
3236 InlayHintRefreshReason::RefreshRequested => {
3237 (InvalidationStrategy::RefreshRequested, None)
3238 }
3239 };
3240
3241 if let Some(InlaySplice {
3242 to_remove,
3243 to_insert,
3244 }) = self.inlay_hint_cache.spawn_hint_refresh(
3245 reason_description,
3246 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3247 invalidate_cache,
3248 ignore_debounce,
3249 cx,
3250 ) {
3251 self.splice_inlays(to_remove, to_insert, cx);
3252 }
3253 }
3254
3255 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3256 self.display_map
3257 .read(cx)
3258 .current_inlays()
3259 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3260 .cloned()
3261 .collect()
3262 }
3263
3264 pub fn excerpts_for_inlay_hints_query(
3265 &self,
3266 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3267 cx: &mut ViewContext<Editor>,
3268 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3269 let Some(project) = self.project.as_ref() else {
3270 return HashMap::default();
3271 };
3272 let project = project.read(cx);
3273 let multi_buffer = self.buffer().read(cx);
3274 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3275 let multi_buffer_visible_start = self
3276 .scroll_manager
3277 .anchor()
3278 .anchor
3279 .to_point(&multi_buffer_snapshot);
3280 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3281 multi_buffer_visible_start
3282 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3283 Bias::Left,
3284 );
3285 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3286 multi_buffer
3287 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3288 .into_iter()
3289 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3290 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3291 let buffer = buffer_handle.read(cx);
3292 let buffer_file = project::File::from_dyn(buffer.file())?;
3293 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3294 let worktree_entry = buffer_worktree
3295 .read(cx)
3296 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3297 if worktree_entry.is_ignored {
3298 return None;
3299 }
3300
3301 let language = buffer.language()?;
3302 if let Some(restrict_to_languages) = restrict_to_languages {
3303 if !restrict_to_languages.contains(language) {
3304 return None;
3305 }
3306 }
3307 Some((
3308 excerpt_id,
3309 (
3310 buffer_handle,
3311 buffer.version().clone(),
3312 excerpt_visible_range,
3313 ),
3314 ))
3315 })
3316 .collect()
3317 }
3318
3319 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3320 TextLayoutDetails {
3321 text_system: cx.text_system().clone(),
3322 editor_style: self.style.clone().unwrap(),
3323 rem_size: cx.rem_size(),
3324 scroll_anchor: self.scroll_manager.anchor(),
3325 visible_rows: self.visible_line_count(),
3326 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3327 }
3328 }
3329
3330 fn splice_inlays(
3331 &self,
3332 to_remove: Vec<InlayId>,
3333 to_insert: Vec<Inlay>,
3334 cx: &mut ViewContext<Self>,
3335 ) {
3336 self.display_map.update(cx, |display_map, cx| {
3337 display_map.splice_inlays(to_remove, to_insert, cx);
3338 });
3339 cx.notify();
3340 }
3341
3342 fn trigger_on_type_formatting(
3343 &self,
3344 input: String,
3345 cx: &mut ViewContext<Self>,
3346 ) -> Option<Task<Result<()>>> {
3347 if input.len() != 1 {
3348 return None;
3349 }
3350
3351 let project = self.project.as_ref()?;
3352 let position = self.selections.newest_anchor().head();
3353 let (buffer, buffer_position) = self
3354 .buffer
3355 .read(cx)
3356 .text_anchor_for_position(position, cx)?;
3357
3358 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3359 // hence we do LSP request & edit on host side only — add formats to host's history.
3360 let push_to_lsp_host_history = true;
3361 // If this is not the host, append its history with new edits.
3362 let push_to_client_history = project.read(cx).is_remote();
3363
3364 let on_type_formatting = project.update(cx, |project, cx| {
3365 project.on_type_format(
3366 buffer.clone(),
3367 buffer_position,
3368 input,
3369 push_to_lsp_host_history,
3370 cx,
3371 )
3372 });
3373 Some(cx.spawn(|editor, mut cx| async move {
3374 if let Some(transaction) = on_type_formatting.await? {
3375 if push_to_client_history {
3376 buffer
3377 .update(&mut cx, |buffer, _| {
3378 buffer.push_transaction(transaction, Instant::now());
3379 })
3380 .ok();
3381 }
3382 editor.update(&mut cx, |editor, cx| {
3383 editor.refresh_document_highlights(cx);
3384 })?;
3385 }
3386 Ok(())
3387 }))
3388 }
3389
3390 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3391 if self.pending_rename.is_some() {
3392 return;
3393 }
3394
3395 let Some(provider) = self.completion_provider.as_ref() else {
3396 return;
3397 };
3398
3399 let position = self.selections.newest_anchor().head();
3400 let (buffer, buffer_position) =
3401 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3402 output
3403 } else {
3404 return;
3405 };
3406
3407 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3408 let completions = provider.completions(&buffer, buffer_position, cx);
3409
3410 let id = post_inc(&mut self.next_completion_id);
3411 let task = cx.spawn(|this, mut cx| {
3412 async move {
3413 let completions = completions.await.log_err();
3414 let menu = if let Some(completions) = completions {
3415 let mut menu = CompletionsMenu {
3416 id,
3417 initial_position: position,
3418 match_candidates: completions
3419 .iter()
3420 .enumerate()
3421 .map(|(id, completion)| {
3422 StringMatchCandidate::new(
3423 id,
3424 completion.label.text[completion.label.filter_range.clone()]
3425 .into(),
3426 )
3427 })
3428 .collect(),
3429 buffer,
3430 completions: Arc::new(RwLock::new(completions.into())),
3431 matches: Vec::new().into(),
3432 selected_item: 0,
3433 scroll_handle: UniformListScrollHandle::new(),
3434 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3435 DebouncedDelay::new(),
3436 )),
3437 };
3438 menu.filter(query.as_deref(), cx.background_executor().clone())
3439 .await;
3440
3441 if menu.matches.is_empty() {
3442 None
3443 } else {
3444 this.update(&mut cx, |editor, cx| {
3445 let completions = menu.completions.clone();
3446 let matches = menu.matches.clone();
3447
3448 let delay_ms = EditorSettings::get_global(cx)
3449 .completion_documentation_secondary_query_debounce;
3450 let delay = Duration::from_millis(delay_ms);
3451
3452 editor
3453 .completion_documentation_pre_resolve_debounce
3454 .fire_new(delay, cx, |editor, cx| {
3455 CompletionsMenu::pre_resolve_completion_documentation(
3456 completions,
3457 matches,
3458 editor,
3459 cx,
3460 )
3461 });
3462 })
3463 .ok();
3464 Some(menu)
3465 }
3466 } else {
3467 None
3468 };
3469
3470 this.update(&mut cx, |this, cx| {
3471 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3472
3473 let mut context_menu = this.context_menu.write();
3474 match context_menu.as_ref() {
3475 None => {}
3476
3477 Some(ContextMenu::Completions(prev_menu)) => {
3478 if prev_menu.id > id {
3479 return;
3480 }
3481 }
3482
3483 _ => return,
3484 }
3485
3486 if this.focus_handle.is_focused(cx) && menu.is_some() {
3487 let menu = menu.unwrap();
3488 *context_menu = Some(ContextMenu::Completions(menu));
3489 drop(context_menu);
3490 this.discard_inline_completion(cx);
3491 cx.notify();
3492 } else if this.completion_tasks.len() <= 1 {
3493 // If there are no more completion tasks and the last menu was
3494 // empty, we should hide it. If it was already hidden, we should
3495 // also show the copilot completion when available.
3496 drop(context_menu);
3497 if this.hide_context_menu(cx).is_none() {
3498 this.update_visible_inline_completion(cx);
3499 }
3500 }
3501 })?;
3502
3503 Ok::<_, anyhow::Error>(())
3504 }
3505 .log_err()
3506 });
3507
3508 self.completion_tasks.push((id, task));
3509 }
3510
3511 pub fn confirm_completion(
3512 &mut self,
3513 action: &ConfirmCompletion,
3514 cx: &mut ViewContext<Self>,
3515 ) -> Option<Task<Result<()>>> {
3516 use language::ToOffset as _;
3517
3518 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3519 menu
3520 } else {
3521 return None;
3522 };
3523
3524 let mat = completions_menu
3525 .matches
3526 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3527 let buffer_handle = completions_menu.buffer;
3528 let completions = completions_menu.completions.read();
3529 let completion = completions.get(mat.candidate_id)?;
3530 cx.stop_propagation();
3531
3532 let snippet;
3533 let text;
3534 if completion.is_snippet() {
3535 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3536 text = snippet.as_ref().unwrap().text.clone();
3537 } else {
3538 snippet = None;
3539 text = completion.new_text.clone();
3540 };
3541 let selections = self.selections.all::<usize>(cx);
3542 let buffer = buffer_handle.read(cx);
3543 let old_range = completion.old_range.to_offset(buffer);
3544 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3545
3546 let newest_selection = self.selections.newest_anchor();
3547 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3548 return None;
3549 }
3550
3551 let lookbehind = newest_selection
3552 .start
3553 .text_anchor
3554 .to_offset(buffer)
3555 .saturating_sub(old_range.start);
3556 let lookahead = old_range
3557 .end
3558 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3559 let mut common_prefix_len = old_text
3560 .bytes()
3561 .zip(text.bytes())
3562 .take_while(|(a, b)| a == b)
3563 .count();
3564
3565 let snapshot = self.buffer.read(cx).snapshot(cx);
3566 let mut range_to_replace: Option<Range<isize>> = None;
3567 let mut ranges = Vec::new();
3568 for selection in &selections {
3569 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3570 let start = selection.start.saturating_sub(lookbehind);
3571 let end = selection.end + lookahead;
3572 if selection.id == newest_selection.id {
3573 range_to_replace = Some(
3574 ((start + common_prefix_len) as isize - selection.start as isize)
3575 ..(end as isize - selection.start as isize),
3576 );
3577 }
3578 ranges.push(start + common_prefix_len..end);
3579 } else {
3580 common_prefix_len = 0;
3581 ranges.clear();
3582 ranges.extend(selections.iter().map(|s| {
3583 if s.id == newest_selection.id {
3584 range_to_replace = Some(
3585 old_range.start.to_offset_utf16(&snapshot).0 as isize
3586 - selection.start as isize
3587 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3588 - selection.start as isize,
3589 );
3590 old_range.clone()
3591 } else {
3592 s.start..s.end
3593 }
3594 }));
3595 break;
3596 }
3597 }
3598 let text = &text[common_prefix_len..];
3599
3600 cx.emit(EditorEvent::InputHandled {
3601 utf16_range_to_replace: range_to_replace,
3602 text: text.into(),
3603 });
3604
3605 self.transact(cx, |this, cx| {
3606 if let Some(mut snippet) = snippet {
3607 snippet.text = text.to_string();
3608 for tabstop in snippet.tabstops.iter_mut().flatten() {
3609 tabstop.start -= common_prefix_len as isize;
3610 tabstop.end -= common_prefix_len as isize;
3611 }
3612
3613 this.insert_snippet(&ranges, snippet, cx).log_err();
3614 } else {
3615 this.buffer.update(cx, |buffer, cx| {
3616 buffer.edit(
3617 ranges.iter().map(|range| (range.clone(), text)),
3618 this.autoindent_mode.clone(),
3619 cx,
3620 );
3621 });
3622 }
3623
3624 this.refresh_inline_completion(true, cx);
3625 });
3626
3627 let provider = self.completion_provider.as_ref()?;
3628 let apply_edits = provider.apply_additional_edits_for_completion(
3629 buffer_handle,
3630 completion.clone(),
3631 true,
3632 cx,
3633 );
3634 Some(cx.foreground_executor().spawn(async move {
3635 apply_edits.await?;
3636 Ok(())
3637 }))
3638 }
3639
3640 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3641 let mut context_menu = self.context_menu.write();
3642 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3643 *context_menu = None;
3644 cx.notify();
3645 return;
3646 }
3647 drop(context_menu);
3648
3649 let deployed_from_indicator = action.deployed_from_indicator;
3650 let mut task = self.code_actions_task.take();
3651 cx.spawn(|this, mut cx| async move {
3652 while let Some(prev_task) = task {
3653 prev_task.await;
3654 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3655 }
3656
3657 this.update(&mut cx, |this, cx| {
3658 if this.focus_handle.is_focused(cx) {
3659 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3660 this.completion_tasks.clear();
3661 this.discard_inline_completion(cx);
3662 *this.context_menu.write() =
3663 Some(ContextMenu::CodeActions(CodeActionsMenu {
3664 buffer,
3665 actions,
3666 selected_item: Default::default(),
3667 scroll_handle: UniformListScrollHandle::default(),
3668 deployed_from_indicator,
3669 }));
3670 cx.notify();
3671 }
3672 }
3673 })?;
3674
3675 Ok::<_, anyhow::Error>(())
3676 })
3677 .detach_and_log_err(cx);
3678 }
3679
3680 pub fn confirm_code_action(
3681 &mut self,
3682 action: &ConfirmCodeAction,
3683 cx: &mut ViewContext<Self>,
3684 ) -> Option<Task<Result<()>>> {
3685 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3686 menu
3687 } else {
3688 return None;
3689 };
3690 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3691 let action = actions_menu.actions.get(action_ix)?.clone();
3692 let title = action.lsp_action.title.clone();
3693 let buffer = actions_menu.buffer;
3694 let workspace = self.workspace()?;
3695
3696 let apply_code_actions = workspace
3697 .read(cx)
3698 .project()
3699 .clone()
3700 .update(cx, |project, cx| {
3701 project.apply_code_action(buffer, action, true, cx)
3702 });
3703 let workspace = workspace.downgrade();
3704 Some(cx.spawn(|editor, cx| async move {
3705 let project_transaction = apply_code_actions.await?;
3706 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3707 }))
3708 }
3709
3710 async fn open_project_transaction(
3711 this: &WeakView<Editor>,
3712 workspace: WeakView<Workspace>,
3713 transaction: ProjectTransaction,
3714 title: String,
3715 mut cx: AsyncWindowContext,
3716 ) -> Result<()> {
3717 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3718
3719 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3720 cx.update(|cx| {
3721 entries.sort_unstable_by_key(|(buffer, _)| {
3722 buffer.read(cx).file().map(|f| f.path().clone())
3723 });
3724 })?;
3725
3726 // If the project transaction's edits are all contained within this editor, then
3727 // avoid opening a new editor to display them.
3728
3729 if let Some((buffer, transaction)) = entries.first() {
3730 if entries.len() == 1 {
3731 let excerpt = this.update(&mut cx, |editor, cx| {
3732 editor
3733 .buffer()
3734 .read(cx)
3735 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3736 })?;
3737 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3738 if excerpted_buffer == *buffer {
3739 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3740 let excerpt_range = excerpt_range.to_offset(buffer);
3741 buffer
3742 .edited_ranges_for_transaction::<usize>(transaction)
3743 .all(|range| {
3744 excerpt_range.start <= range.start
3745 && excerpt_range.end >= range.end
3746 })
3747 })?;
3748
3749 if all_edits_within_excerpt {
3750 return Ok(());
3751 }
3752 }
3753 }
3754 }
3755 } else {
3756 return Ok(());
3757 }
3758
3759 let mut ranges_to_highlight = Vec::new();
3760 let excerpt_buffer = cx.new_model(|cx| {
3761 let mut multibuffer =
3762 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3763 for (buffer_handle, transaction) in &entries {
3764 let buffer = buffer_handle.read(cx);
3765 ranges_to_highlight.extend(
3766 multibuffer.push_excerpts_with_context_lines(
3767 buffer_handle.clone(),
3768 buffer
3769 .edited_ranges_for_transaction::<usize>(transaction)
3770 .collect(),
3771 DEFAULT_MULTIBUFFER_CONTEXT,
3772 cx,
3773 ),
3774 );
3775 }
3776 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3777 multibuffer
3778 })?;
3779
3780 workspace.update(&mut cx, |workspace, cx| {
3781 let project = workspace.project().clone();
3782 let editor =
3783 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3784 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3785 editor.update(cx, |editor, cx| {
3786 editor.highlight_background::<Self>(
3787 &ranges_to_highlight,
3788 |theme| theme.editor_highlighted_line_background,
3789 cx,
3790 );
3791 });
3792 })?;
3793
3794 Ok(())
3795 }
3796
3797 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3798 let project = self.project.clone()?;
3799 let buffer = self.buffer.read(cx);
3800 let newest_selection = self.selections.newest_anchor().clone();
3801 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3802 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3803 if start_buffer != end_buffer {
3804 return None;
3805 }
3806
3807 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3808 cx.background_executor()
3809 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3810 .await;
3811
3812 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3813 project.code_actions(&start_buffer, start..end, cx)
3814 }) {
3815 code_actions.await
3816 } else {
3817 Vec::new()
3818 };
3819
3820 this.update(&mut cx, |this, cx| {
3821 this.available_code_actions = if actions.is_empty() {
3822 None
3823 } else {
3824 Some((start_buffer, actions.into()))
3825 };
3826 cx.notify();
3827 })
3828 .log_err();
3829 }));
3830 None
3831 }
3832
3833 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
3834 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
3835 self.show_git_blame_inline = false;
3836
3837 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
3838 cx.background_executor().timer(delay).await;
3839
3840 this.update(&mut cx, |this, cx| {
3841 this.show_git_blame_inline = true;
3842 cx.notify();
3843 })
3844 .log_err();
3845 }));
3846 }
3847 }
3848
3849 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3850 if self.pending_rename.is_some() {
3851 return None;
3852 }
3853
3854 let project = self.project.clone()?;
3855 let buffer = self.buffer.read(cx);
3856 let newest_selection = self.selections.newest_anchor().clone();
3857 let cursor_position = newest_selection.head();
3858 let (cursor_buffer, cursor_buffer_position) =
3859 buffer.text_anchor_for_position(cursor_position, cx)?;
3860 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3861 if cursor_buffer != tail_buffer {
3862 return None;
3863 }
3864
3865 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3866 cx.background_executor()
3867 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3868 .await;
3869
3870 let highlights = if let Some(highlights) = project
3871 .update(&mut cx, |project, cx| {
3872 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3873 })
3874 .log_err()
3875 {
3876 highlights.await.log_err()
3877 } else {
3878 None
3879 };
3880
3881 if let Some(highlights) = highlights {
3882 this.update(&mut cx, |this, cx| {
3883 if this.pending_rename.is_some() {
3884 return;
3885 }
3886
3887 let buffer_id = cursor_position.buffer_id;
3888 let buffer = this.buffer.read(cx);
3889 if !buffer
3890 .text_anchor_for_position(cursor_position, cx)
3891 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3892 {
3893 return;
3894 }
3895
3896 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3897 let mut write_ranges = Vec::new();
3898 let mut read_ranges = Vec::new();
3899 for highlight in highlights {
3900 for (excerpt_id, excerpt_range) in
3901 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3902 {
3903 let start = highlight
3904 .range
3905 .start
3906 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3907 let end = highlight
3908 .range
3909 .end
3910 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3911 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3912 continue;
3913 }
3914
3915 let range = Anchor {
3916 buffer_id,
3917 excerpt_id: excerpt_id,
3918 text_anchor: start,
3919 }..Anchor {
3920 buffer_id,
3921 excerpt_id,
3922 text_anchor: end,
3923 };
3924 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3925 write_ranges.push(range);
3926 } else {
3927 read_ranges.push(range);
3928 }
3929 }
3930 }
3931
3932 this.highlight_background::<DocumentHighlightRead>(
3933 &read_ranges,
3934 |theme| theme.editor_document_highlight_read_background,
3935 cx,
3936 );
3937 this.highlight_background::<DocumentHighlightWrite>(
3938 &write_ranges,
3939 |theme| theme.editor_document_highlight_write_background,
3940 cx,
3941 );
3942 cx.notify();
3943 })
3944 .log_err();
3945 }
3946 }));
3947 None
3948 }
3949
3950 fn refresh_inline_completion(
3951 &mut self,
3952 debounce: bool,
3953 cx: &mut ViewContext<Self>,
3954 ) -> Option<()> {
3955 let provider = self.inline_completion_provider()?;
3956 let cursor = self.selections.newest_anchor().head();
3957 let (buffer, cursor_buffer_position) =
3958 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3959 if !self.show_inline_completions
3960 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
3961 {
3962 self.clear_inline_completion(cx);
3963 return None;
3964 }
3965
3966 self.update_visible_inline_completion(cx);
3967 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
3968 Some(())
3969 }
3970
3971 fn cycle_inline_completion(
3972 &mut self,
3973 direction: Direction,
3974 cx: &mut ViewContext<Self>,
3975 ) -> Option<()> {
3976 let provider = self.inline_completion_provider()?;
3977 let cursor = self.selections.newest_anchor().head();
3978 let (buffer, cursor_buffer_position) =
3979 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3980 if !self.show_inline_completions
3981 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
3982 {
3983 return None;
3984 }
3985
3986 provider.cycle(buffer, cursor_buffer_position, direction, cx);
3987 self.update_visible_inline_completion(cx);
3988
3989 Some(())
3990 }
3991
3992 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
3993 if !self.has_active_inline_completion(cx) {
3994 self.refresh_inline_completion(false, cx);
3995 return;
3996 }
3997
3998 self.update_visible_inline_completion(cx);
3999 }
4000
4001 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4002 self.show_cursor_names(cx);
4003 }
4004
4005 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4006 self.show_cursor_names = true;
4007 cx.notify();
4008 cx.spawn(|this, mut cx| async move {
4009 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4010 this.update(&mut cx, |this, cx| {
4011 this.show_cursor_names = false;
4012 cx.notify()
4013 })
4014 .ok()
4015 })
4016 .detach();
4017 }
4018
4019 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4020 if self.has_active_inline_completion(cx) {
4021 self.cycle_inline_completion(Direction::Next, cx);
4022 } else {
4023 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4024 if is_copilot_disabled {
4025 cx.propagate();
4026 }
4027 }
4028 }
4029
4030 pub fn previous_inline_completion(
4031 &mut self,
4032 _: &PreviousInlineCompletion,
4033 cx: &mut ViewContext<Self>,
4034 ) {
4035 if self.has_active_inline_completion(cx) {
4036 self.cycle_inline_completion(Direction::Prev, cx);
4037 } else {
4038 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4039 if is_copilot_disabled {
4040 cx.propagate();
4041 }
4042 }
4043 }
4044
4045 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4046 if let Some(completion) = self.take_active_inline_completion(cx) {
4047 if let Some(provider) = self.inline_completion_provider() {
4048 provider.accept(cx);
4049 }
4050
4051 cx.emit(EditorEvent::InputHandled {
4052 utf16_range_to_replace: None,
4053 text: completion.text.to_string().into(),
4054 });
4055 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4056 cx.notify();
4057 true
4058 } else {
4059 false
4060 }
4061 }
4062
4063 pub fn accept_partial_inline_completion(
4064 &mut self,
4065 _: &AcceptPartialInlineCompletion,
4066 cx: &mut ViewContext<Self>,
4067 ) {
4068 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4069 if let Some(completion) = self.take_active_inline_completion(cx) {
4070 let mut partial_completion = completion
4071 .text
4072 .chars()
4073 .by_ref()
4074 .take_while(|c| c.is_alphabetic())
4075 .collect::<String>();
4076 if partial_completion.is_empty() {
4077 partial_completion = completion
4078 .text
4079 .chars()
4080 .by_ref()
4081 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4082 .collect::<String>();
4083 }
4084
4085 cx.emit(EditorEvent::InputHandled {
4086 utf16_range_to_replace: None,
4087 text: partial_completion.clone().into(),
4088 });
4089 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4090 self.refresh_inline_completion(true, cx);
4091 cx.notify();
4092 }
4093 }
4094 }
4095
4096 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4097 if let Some(provider) = self.inline_completion_provider() {
4098 provider.discard(cx);
4099 }
4100
4101 self.take_active_inline_completion(cx).is_some()
4102 }
4103
4104 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4105 if let Some(completion) = self.active_inline_completion.as_ref() {
4106 let buffer = self.buffer.read(cx).read(cx);
4107 completion.position.is_valid(&buffer)
4108 } else {
4109 false
4110 }
4111 }
4112
4113 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4114 let completion = self.active_inline_completion.take()?;
4115 self.display_map.update(cx, |map, cx| {
4116 map.splice_inlays(vec![completion.id], Default::default(), cx);
4117 });
4118 let buffer = self.buffer.read(cx).read(cx);
4119
4120 if completion.position.is_valid(&buffer) {
4121 Some(completion)
4122 } else {
4123 None
4124 }
4125 }
4126
4127 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4128 let selection = self.selections.newest_anchor();
4129 let cursor = selection.head();
4130
4131 if self.context_menu.read().is_none()
4132 && self.completion_tasks.is_empty()
4133 && selection.start == selection.end
4134 {
4135 if let Some(provider) = self.inline_completion_provider() {
4136 if let Some((buffer, cursor_buffer_position)) =
4137 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4138 {
4139 if let Some(text) =
4140 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4141 {
4142 let text = Rope::from(text);
4143 let mut to_remove = Vec::new();
4144 if let Some(completion) = self.active_inline_completion.take() {
4145 to_remove.push(completion.id);
4146 }
4147
4148 let completion_inlay =
4149 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4150 self.active_inline_completion = Some(completion_inlay.clone());
4151 self.display_map.update(cx, move |map, cx| {
4152 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4153 });
4154 cx.notify();
4155 return;
4156 }
4157 }
4158 }
4159 }
4160
4161 self.discard_inline_completion(cx);
4162 }
4163
4164 fn clear_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4165 if let Some(old_completion) = self.active_inline_completion.take() {
4166 self.splice_inlays(vec![old_completion.id], Vec::new(), cx);
4167 }
4168 self.discard_inline_completion(cx);
4169 }
4170
4171 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4172 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4173 }
4174
4175 pub fn render_code_actions_indicator(
4176 &self,
4177 _style: &EditorStyle,
4178 is_active: bool,
4179 cx: &mut ViewContext<Self>,
4180 ) -> Option<IconButton> {
4181 if self.available_code_actions.is_some() {
4182 Some(
4183 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4184 .icon_size(IconSize::XSmall)
4185 .size(ui::ButtonSize::None)
4186 .icon_color(Color::Muted)
4187 .selected(is_active)
4188 .on_click(cx.listener(|editor, _e, cx| {
4189 editor.toggle_code_actions(
4190 &ToggleCodeActions {
4191 deployed_from_indicator: true,
4192 },
4193 cx,
4194 );
4195 })),
4196 )
4197 } else {
4198 None
4199 }
4200 }
4201
4202 pub fn render_fold_indicators(
4203 &mut self,
4204 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4205 _style: &EditorStyle,
4206 gutter_hovered: bool,
4207 _line_height: Pixels,
4208 _gutter_margin: Pixels,
4209 cx: &mut ViewContext<Self>,
4210 ) -> Vec<Option<AnyElement>> {
4211 fold_data
4212 .iter()
4213 .enumerate()
4214 .map(|(ix, fold_data)| {
4215 fold_data
4216 .map(|(fold_status, buffer_row, active)| {
4217 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4218 IconButton::new(ix, ui::IconName::ChevronDown)
4219 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4220 FoldStatus::Folded => {
4221 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4222 }
4223 FoldStatus::Foldable => {
4224 this.fold_at(&FoldAt { buffer_row }, cx);
4225 }
4226 }))
4227 .icon_color(ui::Color::Muted)
4228 .icon_size(ui::IconSize::Small)
4229 .selected(fold_status == FoldStatus::Folded)
4230 .selected_icon(ui::IconName::ChevronRight)
4231 .size(ui::ButtonSize::None)
4232 .into_any_element()
4233 })
4234 })
4235 .flatten()
4236 })
4237 .collect()
4238 }
4239
4240 pub fn context_menu_visible(&self) -> bool {
4241 self.context_menu
4242 .read()
4243 .as_ref()
4244 .map_or(false, |menu| menu.visible())
4245 }
4246
4247 pub fn render_context_menu(
4248 &self,
4249 cursor_position: DisplayPoint,
4250 style: &EditorStyle,
4251 max_height: Pixels,
4252 cx: &mut ViewContext<Editor>,
4253 ) -> Option<(DisplayPoint, AnyElement)> {
4254 self.context_menu.read().as_ref().map(|menu| {
4255 menu.render(
4256 cursor_position,
4257 style,
4258 max_height,
4259 self.workspace.as_ref().map(|(w, _)| w.clone()),
4260 cx,
4261 )
4262 })
4263 }
4264
4265 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4266 cx.notify();
4267 self.completion_tasks.clear();
4268 let context_menu = self.context_menu.write().take();
4269 if context_menu.is_some() {
4270 self.update_visible_inline_completion(cx);
4271 }
4272 context_menu
4273 }
4274
4275 pub fn insert_snippet(
4276 &mut self,
4277 insertion_ranges: &[Range<usize>],
4278 snippet: Snippet,
4279 cx: &mut ViewContext<Self>,
4280 ) -> Result<()> {
4281 let tabstops = self.buffer.update(cx, |buffer, cx| {
4282 let snippet_text: Arc<str> = snippet.text.clone().into();
4283 buffer.edit(
4284 insertion_ranges
4285 .iter()
4286 .cloned()
4287 .map(|range| (range, snippet_text.clone())),
4288 Some(AutoindentMode::EachLine),
4289 cx,
4290 );
4291
4292 let snapshot = &*buffer.read(cx);
4293 let snippet = &snippet;
4294 snippet
4295 .tabstops
4296 .iter()
4297 .map(|tabstop| {
4298 let mut tabstop_ranges = tabstop
4299 .iter()
4300 .flat_map(|tabstop_range| {
4301 let mut delta = 0_isize;
4302 insertion_ranges.iter().map(move |insertion_range| {
4303 let insertion_start = insertion_range.start as isize + delta;
4304 delta +=
4305 snippet.text.len() as isize - insertion_range.len() as isize;
4306
4307 let start = snapshot.anchor_before(
4308 (insertion_start + tabstop_range.start) as usize,
4309 );
4310 let end = snapshot
4311 .anchor_after((insertion_start + tabstop_range.end) as usize);
4312 start..end
4313 })
4314 })
4315 .collect::<Vec<_>>();
4316 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4317 tabstop_ranges
4318 })
4319 .collect::<Vec<_>>()
4320 });
4321
4322 if let Some(tabstop) = tabstops.first() {
4323 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4324 s.select_ranges(tabstop.iter().cloned());
4325 });
4326 self.snippet_stack.push(SnippetState {
4327 active_index: 0,
4328 ranges: tabstops,
4329 });
4330
4331 // Check whether the just-entered snippet ends with an auto-closable bracket.
4332 if self.autoclose_regions.is_empty() {
4333 let snapshot = self.buffer.read(cx).snapshot(cx);
4334 for selection in &mut self.selections.all::<Point>(cx) {
4335 let selection_head = selection.head();
4336 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4337 continue;
4338 };
4339
4340 let mut bracket_pair = None;
4341 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4342 let prev_chars = snapshot
4343 .reversed_chars_at(selection_head)
4344 .collect::<String>();
4345 for (pair, enabled) in scope.brackets() {
4346 if enabled
4347 && pair.close
4348 && prev_chars.starts_with(pair.start.as_str())
4349 && next_chars.starts_with(pair.end.as_str())
4350 {
4351 bracket_pair = Some(pair.clone());
4352 break;
4353 }
4354 }
4355 if let Some(pair) = bracket_pair {
4356 let start = snapshot.anchor_after(selection_head);
4357 let end = snapshot.anchor_after(selection_head);
4358 self.autoclose_regions.push(AutocloseRegion {
4359 selection_id: selection.id,
4360 range: start..end,
4361 pair,
4362 });
4363 }
4364 }
4365 }
4366 }
4367 Ok(())
4368 }
4369
4370 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4371 self.move_to_snippet_tabstop(Bias::Right, cx)
4372 }
4373
4374 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4375 self.move_to_snippet_tabstop(Bias::Left, cx)
4376 }
4377
4378 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4379 if let Some(mut snippet) = self.snippet_stack.pop() {
4380 match bias {
4381 Bias::Left => {
4382 if snippet.active_index > 0 {
4383 snippet.active_index -= 1;
4384 } else {
4385 self.snippet_stack.push(snippet);
4386 return false;
4387 }
4388 }
4389 Bias::Right => {
4390 if snippet.active_index + 1 < snippet.ranges.len() {
4391 snippet.active_index += 1;
4392 } else {
4393 self.snippet_stack.push(snippet);
4394 return false;
4395 }
4396 }
4397 }
4398 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4399 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4400 s.select_anchor_ranges(current_ranges.iter().cloned())
4401 });
4402 // If snippet state is not at the last tabstop, push it back on the stack
4403 if snippet.active_index + 1 < snippet.ranges.len() {
4404 self.snippet_stack.push(snippet);
4405 }
4406 return true;
4407 }
4408 }
4409
4410 false
4411 }
4412
4413 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4414 self.transact(cx, |this, cx| {
4415 this.select_all(&SelectAll, cx);
4416 this.insert("", cx);
4417 });
4418 }
4419
4420 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4421 self.transact(cx, |this, cx| {
4422 this.select_autoclose_pair(cx);
4423 let mut selections = this.selections.all::<Point>(cx);
4424 if !this.selections.line_mode {
4425 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4426 for selection in &mut selections {
4427 if selection.is_empty() {
4428 let old_head = selection.head();
4429 let mut new_head =
4430 movement::left(&display_map, old_head.to_display_point(&display_map))
4431 .to_point(&display_map);
4432 if let Some((buffer, line_buffer_range)) = display_map
4433 .buffer_snapshot
4434 .buffer_line_for_row(old_head.row)
4435 {
4436 let indent_size =
4437 buffer.indent_size_for_line(line_buffer_range.start.row);
4438 let indent_len = match indent_size.kind {
4439 IndentKind::Space => {
4440 buffer.settings_at(line_buffer_range.start, cx).tab_size
4441 }
4442 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4443 };
4444 if old_head.column <= indent_size.len && old_head.column > 0 {
4445 let indent_len = indent_len.get();
4446 new_head = cmp::min(
4447 new_head,
4448 Point::new(
4449 old_head.row,
4450 ((old_head.column - 1) / indent_len) * indent_len,
4451 ),
4452 );
4453 }
4454 }
4455
4456 selection.set_head(new_head, SelectionGoal::None);
4457 }
4458 }
4459 }
4460
4461 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4462 this.insert("", cx);
4463 this.refresh_inline_completion(true, cx);
4464 });
4465 }
4466
4467 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4468 self.transact(cx, |this, cx| {
4469 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4470 let line_mode = s.line_mode;
4471 s.move_with(|map, selection| {
4472 if selection.is_empty() && !line_mode {
4473 let cursor = movement::right(map, selection.head());
4474 selection.end = cursor;
4475 selection.reversed = true;
4476 selection.goal = SelectionGoal::None;
4477 }
4478 })
4479 });
4480 this.insert("", cx);
4481 this.refresh_inline_completion(true, cx);
4482 });
4483 }
4484
4485 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4486 if self.move_to_prev_snippet_tabstop(cx) {
4487 return;
4488 }
4489
4490 self.outdent(&Outdent, cx);
4491 }
4492
4493 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4494 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4495 return;
4496 }
4497
4498 let mut selections = self.selections.all_adjusted(cx);
4499 let buffer = self.buffer.read(cx);
4500 let snapshot = buffer.snapshot(cx);
4501 let rows_iter = selections.iter().map(|s| s.head().row);
4502 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4503
4504 let mut edits = Vec::new();
4505 let mut prev_edited_row = 0;
4506 let mut row_delta = 0;
4507 for selection in &mut selections {
4508 if selection.start.row != prev_edited_row {
4509 row_delta = 0;
4510 }
4511 prev_edited_row = selection.end.row;
4512
4513 // If the selection is non-empty, then increase the indentation of the selected lines.
4514 if !selection.is_empty() {
4515 row_delta =
4516 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4517 continue;
4518 }
4519
4520 // If the selection is empty and the cursor is in the leading whitespace before the
4521 // suggested indentation, then auto-indent the line.
4522 let cursor = selection.head();
4523 let current_indent = snapshot.indent_size_for_line(cursor.row);
4524 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4525 if cursor.column < suggested_indent.len
4526 && cursor.column <= current_indent.len
4527 && current_indent.len <= suggested_indent.len
4528 {
4529 selection.start = Point::new(cursor.row, suggested_indent.len);
4530 selection.end = selection.start;
4531 if row_delta == 0 {
4532 edits.extend(Buffer::edit_for_indent_size_adjustment(
4533 cursor.row,
4534 current_indent,
4535 suggested_indent,
4536 ));
4537 row_delta = suggested_indent.len - current_indent.len;
4538 }
4539 continue;
4540 }
4541 }
4542
4543 // Accept copilot completion if there is only one selection and the cursor is not
4544 // in the leading whitespace.
4545 if self.selections.count() == 1
4546 && cursor.column >= current_indent.len
4547 && self.has_active_inline_completion(cx)
4548 {
4549 self.accept_inline_completion(cx);
4550 return;
4551 }
4552
4553 // Otherwise, insert a hard or soft tab.
4554 let settings = buffer.settings_at(cursor, cx);
4555 let tab_size = if settings.hard_tabs {
4556 IndentSize::tab()
4557 } else {
4558 let tab_size = settings.tab_size.get();
4559 let char_column = snapshot
4560 .text_for_range(Point::new(cursor.row, 0)..cursor)
4561 .flat_map(str::chars)
4562 .count()
4563 + row_delta as usize;
4564 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4565 IndentSize::spaces(chars_to_next_tab_stop)
4566 };
4567 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4568 selection.end = selection.start;
4569 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4570 row_delta += tab_size.len;
4571 }
4572
4573 self.transact(cx, |this, cx| {
4574 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4575 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4576 this.refresh_inline_completion(true, cx);
4577 });
4578 }
4579
4580 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4581 if self.read_only(cx) {
4582 return;
4583 }
4584 let mut selections = self.selections.all::<Point>(cx);
4585 let mut prev_edited_row = 0;
4586 let mut row_delta = 0;
4587 let mut edits = Vec::new();
4588 let buffer = self.buffer.read(cx);
4589 let snapshot = buffer.snapshot(cx);
4590 for selection in &mut selections {
4591 if selection.start.row != prev_edited_row {
4592 row_delta = 0;
4593 }
4594 prev_edited_row = selection.end.row;
4595
4596 row_delta =
4597 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4598 }
4599
4600 self.transact(cx, |this, cx| {
4601 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4602 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4603 });
4604 }
4605
4606 fn indent_selection(
4607 buffer: &MultiBuffer,
4608 snapshot: &MultiBufferSnapshot,
4609 selection: &mut Selection<Point>,
4610 edits: &mut Vec<(Range<Point>, String)>,
4611 delta_for_start_row: u32,
4612 cx: &AppContext,
4613 ) -> u32 {
4614 let settings = buffer.settings_at(selection.start, cx);
4615 let tab_size = settings.tab_size.get();
4616 let indent_kind = if settings.hard_tabs {
4617 IndentKind::Tab
4618 } else {
4619 IndentKind::Space
4620 };
4621 let mut start_row = selection.start.row;
4622 let mut end_row = selection.end.row + 1;
4623
4624 // If a selection ends at the beginning of a line, don't indent
4625 // that last line.
4626 if selection.end.column == 0 && selection.end.row > selection.start.row {
4627 end_row -= 1;
4628 }
4629
4630 // Avoid re-indenting a row that has already been indented by a
4631 // previous selection, but still update this selection's column
4632 // to reflect that indentation.
4633 if delta_for_start_row > 0 {
4634 start_row += 1;
4635 selection.start.column += delta_for_start_row;
4636 if selection.end.row == selection.start.row {
4637 selection.end.column += delta_for_start_row;
4638 }
4639 }
4640
4641 let mut delta_for_end_row = 0;
4642 let has_multiple_rows = start_row + 1 != end_row;
4643 for row in start_row..end_row {
4644 let current_indent = snapshot.indent_size_for_line(row);
4645 let indent_delta = match (current_indent.kind, indent_kind) {
4646 (IndentKind::Space, IndentKind::Space) => {
4647 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4648 IndentSize::spaces(columns_to_next_tab_stop)
4649 }
4650 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4651 (_, IndentKind::Tab) => IndentSize::tab(),
4652 };
4653
4654 let start = if has_multiple_rows || current_indent.len < selection.start.column {
4655 0
4656 } else {
4657 selection.start.column
4658 };
4659 let row_start = Point::new(row, start);
4660 edits.push((
4661 row_start..row_start,
4662 indent_delta.chars().collect::<String>(),
4663 ));
4664
4665 // Update this selection's endpoints to reflect the indentation.
4666 if row == selection.start.row {
4667 selection.start.column += indent_delta.len;
4668 }
4669 if row == selection.end.row {
4670 selection.end.column += indent_delta.len;
4671 delta_for_end_row = indent_delta.len;
4672 }
4673 }
4674
4675 if selection.start.row == selection.end.row {
4676 delta_for_start_row + delta_for_end_row
4677 } else {
4678 delta_for_end_row
4679 }
4680 }
4681
4682 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4683 if self.read_only(cx) {
4684 return;
4685 }
4686 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4687 let selections = self.selections.all::<Point>(cx);
4688 let mut deletion_ranges = Vec::new();
4689 let mut last_outdent = None;
4690 {
4691 let buffer = self.buffer.read(cx);
4692 let snapshot = buffer.snapshot(cx);
4693 for selection in &selections {
4694 let settings = buffer.settings_at(selection.start, cx);
4695 let tab_size = settings.tab_size.get();
4696 let mut rows = selection.spanned_rows(false, &display_map);
4697
4698 // Avoid re-outdenting a row that has already been outdented by a
4699 // previous selection.
4700 if let Some(last_row) = last_outdent {
4701 if last_row == rows.start {
4702 rows.start += 1;
4703 }
4704 }
4705 let has_multiple_rows = rows.len() > 1;
4706 for row in rows {
4707 let indent_size = snapshot.indent_size_for_line(row);
4708 if indent_size.len > 0 {
4709 let deletion_len = match indent_size.kind {
4710 IndentKind::Space => {
4711 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4712 if columns_to_prev_tab_stop == 0 {
4713 tab_size
4714 } else {
4715 columns_to_prev_tab_stop
4716 }
4717 }
4718 IndentKind::Tab => 1,
4719 };
4720 let start = if has_multiple_rows
4721 || deletion_len > selection.start.column
4722 || indent_size.len < selection.start.column
4723 {
4724 0
4725 } else {
4726 selection.start.column - deletion_len
4727 };
4728 deletion_ranges
4729 .push(Point::new(row, start)..Point::new(row, start + deletion_len));
4730 last_outdent = Some(row);
4731 }
4732 }
4733 }
4734 }
4735
4736 self.transact(cx, |this, cx| {
4737 this.buffer.update(cx, |buffer, cx| {
4738 let empty_str: Arc<str> = "".into();
4739 buffer.edit(
4740 deletion_ranges
4741 .into_iter()
4742 .map(|range| (range, empty_str.clone())),
4743 None,
4744 cx,
4745 );
4746 });
4747 let selections = this.selections.all::<usize>(cx);
4748 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4749 });
4750 }
4751
4752 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4753 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4754 let selections = self.selections.all::<Point>(cx);
4755
4756 let mut new_cursors = Vec::new();
4757 let mut edit_ranges = Vec::new();
4758 let mut selections = selections.iter().peekable();
4759 while let Some(selection) = selections.next() {
4760 let mut rows = selection.spanned_rows(false, &display_map);
4761 let goal_display_column = selection.head().to_display_point(&display_map).column();
4762
4763 // Accumulate contiguous regions of rows that we want to delete.
4764 while let Some(next_selection) = selections.peek() {
4765 let next_rows = next_selection.spanned_rows(false, &display_map);
4766 if next_rows.start <= rows.end {
4767 rows.end = next_rows.end;
4768 selections.next().unwrap();
4769 } else {
4770 break;
4771 }
4772 }
4773
4774 let buffer = &display_map.buffer_snapshot;
4775 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4776 let edit_end;
4777 let cursor_buffer_row;
4778 if buffer.max_point().row >= rows.end {
4779 // If there's a line after the range, delete the \n from the end of the row range
4780 // and position the cursor on the next line.
4781 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4782 cursor_buffer_row = rows.end;
4783 } else {
4784 // If there isn't a line after the range, delete the \n from the line before the
4785 // start of the row range and position the cursor there.
4786 edit_start = edit_start.saturating_sub(1);
4787 edit_end = buffer.len();
4788 cursor_buffer_row = rows.start.saturating_sub(1);
4789 }
4790
4791 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4792 *cursor.column_mut() =
4793 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4794
4795 new_cursors.push((
4796 selection.id,
4797 buffer.anchor_after(cursor.to_point(&display_map)),
4798 ));
4799 edit_ranges.push(edit_start..edit_end);
4800 }
4801
4802 self.transact(cx, |this, cx| {
4803 let buffer = this.buffer.update(cx, |buffer, cx| {
4804 let empty_str: Arc<str> = "".into();
4805 buffer.edit(
4806 edit_ranges
4807 .into_iter()
4808 .map(|range| (range, empty_str.clone())),
4809 None,
4810 cx,
4811 );
4812 buffer.snapshot(cx)
4813 });
4814 let new_selections = new_cursors
4815 .into_iter()
4816 .map(|(id, cursor)| {
4817 let cursor = cursor.to_point(&buffer);
4818 Selection {
4819 id,
4820 start: cursor,
4821 end: cursor,
4822 reversed: false,
4823 goal: SelectionGoal::None,
4824 }
4825 })
4826 .collect();
4827
4828 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4829 s.select(new_selections);
4830 });
4831 });
4832 }
4833
4834 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4835 if self.read_only(cx) {
4836 return;
4837 }
4838 let mut row_ranges = Vec::<Range<u32>>::new();
4839 for selection in self.selections.all::<Point>(cx) {
4840 let start = selection.start.row;
4841 let end = if selection.start.row == selection.end.row {
4842 selection.start.row + 1
4843 } else {
4844 selection.end.row
4845 };
4846
4847 if let Some(last_row_range) = row_ranges.last_mut() {
4848 if start <= last_row_range.end {
4849 last_row_range.end = end;
4850 continue;
4851 }
4852 }
4853 row_ranges.push(start..end);
4854 }
4855
4856 let snapshot = self.buffer.read(cx).snapshot(cx);
4857 let mut cursor_positions = Vec::new();
4858 for row_range in &row_ranges {
4859 let anchor = snapshot.anchor_before(Point::new(
4860 row_range.end - 1,
4861 snapshot.line_len(row_range.end - 1),
4862 ));
4863 cursor_positions.push(anchor..anchor);
4864 }
4865
4866 self.transact(cx, |this, cx| {
4867 for row_range in row_ranges.into_iter().rev() {
4868 for row in row_range.rev() {
4869 let end_of_line = Point::new(row, snapshot.line_len(row));
4870 let indent = snapshot.indent_size_for_line(row + 1);
4871 let start_of_next_line = Point::new(row + 1, indent.len);
4872
4873 let replace = if snapshot.line_len(row + 1) > indent.len {
4874 " "
4875 } else {
4876 ""
4877 };
4878
4879 this.buffer.update(cx, |buffer, cx| {
4880 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4881 });
4882 }
4883 }
4884
4885 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4886 s.select_anchor_ranges(cursor_positions)
4887 });
4888 });
4889 }
4890
4891 pub fn sort_lines_case_sensitive(
4892 &mut self,
4893 _: &SortLinesCaseSensitive,
4894 cx: &mut ViewContext<Self>,
4895 ) {
4896 self.manipulate_lines(cx, |lines| lines.sort())
4897 }
4898
4899 pub fn sort_lines_case_insensitive(
4900 &mut self,
4901 _: &SortLinesCaseInsensitive,
4902 cx: &mut ViewContext<Self>,
4903 ) {
4904 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4905 }
4906
4907 pub fn unique_lines_case_insensitive(
4908 &mut self,
4909 _: &UniqueLinesCaseInsensitive,
4910 cx: &mut ViewContext<Self>,
4911 ) {
4912 self.manipulate_lines(cx, |lines| {
4913 let mut seen = HashSet::default();
4914 lines.retain(|line| seen.insert(line.to_lowercase()));
4915 })
4916 }
4917
4918 pub fn unique_lines_case_sensitive(
4919 &mut self,
4920 _: &UniqueLinesCaseSensitive,
4921 cx: &mut ViewContext<Self>,
4922 ) {
4923 self.manipulate_lines(cx, |lines| {
4924 let mut seen = HashSet::default();
4925 lines.retain(|line| seen.insert(*line));
4926 })
4927 }
4928
4929 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4930 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4931 if !revert_changes.is_empty() {
4932 self.transact(cx, |editor, cx| {
4933 editor.buffer().update(cx, |multi_buffer, cx| {
4934 for (buffer_id, buffer_revert_ranges) in revert_changes {
4935 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4936 buffer.update(cx, |buffer, cx| {
4937 buffer.edit(buffer_revert_ranges, None, cx);
4938 });
4939 }
4940 }
4941 });
4942 editor.change_selections(None, cx, |selections| selections.refresh());
4943 });
4944 }
4945 }
4946
4947 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
4948 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
4949 let project_path = buffer.read(cx).project_path(cx)?;
4950 let project = self.project.as_ref()?.read(cx);
4951 let entry = project.entry_for_path(&project_path, cx)?;
4952 let abs_path = project.absolute_path(&project_path, cx)?;
4953 let parent = if entry.is_symlink {
4954 abs_path.canonicalize().ok()?
4955 } else {
4956 abs_path
4957 }
4958 .parent()?
4959 .to_path_buf();
4960 Some(parent)
4961 }) {
4962 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
4963 }
4964 }
4965
4966 fn gather_revert_changes(
4967 &mut self,
4968 selections: &[Selection<Anchor>],
4969 cx: &mut ViewContext<'_, Editor>,
4970 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4971 let mut revert_changes = HashMap::default();
4972 self.buffer.update(cx, |multi_buffer, cx| {
4973 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4974 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4975 let head = selection.head();
4976 let tail = selection.tail();
4977 let start = tail.to_point(&multi_buffer_snapshot).row;
4978 let end = head.to_point(&multi_buffer_snapshot).row;
4979 if start > end {
4980 end..start
4981 } else {
4982 start..end
4983 }
4984 });
4985
4986 let mut processed_buffer_rows =
4987 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4988 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4989 let query_rows =
4990 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4991 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4992 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4993 // when the caret is just above or just below the deleted hunk.
4994 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4995 let related_to_selection = if allow_adjacent {
4996 hunk.associated_range.overlaps(&query_rows)
4997 || hunk.associated_range.start == query_rows.end
4998 || hunk.associated_range.end == query_rows.start
4999 } else {
5000 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
5001 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
5002 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
5003 || selected_multi_buffer_rows.end == hunk.associated_range.start
5004 };
5005 if related_to_selection {
5006 if !processed_buffer_rows
5007 .entry(hunk.buffer_id)
5008 .or_default()
5009 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
5010 {
5011 continue;
5012 }
5013 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5014 }
5015 }
5016 }
5017 });
5018 revert_changes
5019 }
5020
5021 fn prepare_revert_change(
5022 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
5023 multi_buffer: &MultiBuffer,
5024 hunk: &DiffHunk<u32>,
5025 cx: &mut AppContext,
5026 ) -> Option<()> {
5027 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5028 let buffer = buffer.read(cx);
5029 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
5030 let buffer_snapshot = buffer.snapshot();
5031 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5032 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5033 probe
5034 .0
5035 .start
5036 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5037 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5038 .then(probe.1.as_ref().cmp(original_text))
5039 }) {
5040 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
5041 Some(())
5042 } else {
5043 None
5044 }
5045 }
5046
5047 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5048 self.manipulate_lines(cx, |lines| lines.reverse())
5049 }
5050
5051 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5052 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5053 }
5054
5055 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5056 where
5057 Fn: FnMut(&mut Vec<&str>),
5058 {
5059 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5060 let buffer = self.buffer.read(cx).snapshot(cx);
5061
5062 let mut edits = Vec::new();
5063
5064 let selections = self.selections.all::<Point>(cx);
5065 let mut selections = selections.iter().peekable();
5066 let mut contiguous_row_selections = Vec::new();
5067 let mut new_selections = Vec::new();
5068 let mut added_lines = 0;
5069 let mut removed_lines = 0;
5070
5071 while let Some(selection) = selections.next() {
5072 let (start_row, end_row) = consume_contiguous_rows(
5073 &mut contiguous_row_selections,
5074 selection,
5075 &display_map,
5076 &mut selections,
5077 );
5078
5079 let start_point = Point::new(start_row, 0);
5080 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5081 let text = buffer
5082 .text_for_range(start_point..end_point)
5083 .collect::<String>();
5084
5085 let mut lines = text.split('\n').collect_vec();
5086
5087 let lines_before = lines.len();
5088 callback(&mut lines);
5089 let lines_after = lines.len();
5090
5091 edits.push((start_point..end_point, lines.join("\n")));
5092
5093 // Selections must change based on added and removed line count
5094 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5095 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5096 new_selections.push(Selection {
5097 id: selection.id,
5098 start: start_row,
5099 end: end_row,
5100 goal: SelectionGoal::None,
5101 reversed: selection.reversed,
5102 });
5103
5104 if lines_after > lines_before {
5105 added_lines += lines_after - lines_before;
5106 } else if lines_before > lines_after {
5107 removed_lines += lines_before - lines_after;
5108 }
5109 }
5110
5111 self.transact(cx, |this, cx| {
5112 let buffer = this.buffer.update(cx, |buffer, cx| {
5113 buffer.edit(edits, None, cx);
5114 buffer.snapshot(cx)
5115 });
5116
5117 // Recalculate offsets on newly edited buffer
5118 let new_selections = new_selections
5119 .iter()
5120 .map(|s| {
5121 let start_point = Point::new(s.start, 0);
5122 let end_point = Point::new(s.end, buffer.line_len(s.end));
5123 Selection {
5124 id: s.id,
5125 start: buffer.point_to_offset(start_point),
5126 end: buffer.point_to_offset(end_point),
5127 goal: s.goal,
5128 reversed: s.reversed,
5129 }
5130 })
5131 .collect();
5132
5133 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5134 s.select(new_selections);
5135 });
5136
5137 this.request_autoscroll(Autoscroll::fit(), cx);
5138 });
5139 }
5140
5141 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5142 self.manipulate_text(cx, |text| text.to_uppercase())
5143 }
5144
5145 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5146 self.manipulate_text(cx, |text| text.to_lowercase())
5147 }
5148
5149 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5150 self.manipulate_text(cx, |text| {
5151 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5152 // https://github.com/rutrum/convert-case/issues/16
5153 text.split('\n')
5154 .map(|line| line.to_case(Case::Title))
5155 .join("\n")
5156 })
5157 }
5158
5159 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5160 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5161 }
5162
5163 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5164 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5165 }
5166
5167 pub fn convert_to_upper_camel_case(
5168 &mut self,
5169 _: &ConvertToUpperCamelCase,
5170 cx: &mut ViewContext<Self>,
5171 ) {
5172 self.manipulate_text(cx, |text| {
5173 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5174 // https://github.com/rutrum/convert-case/issues/16
5175 text.split('\n')
5176 .map(|line| line.to_case(Case::UpperCamel))
5177 .join("\n")
5178 })
5179 }
5180
5181 pub fn convert_to_lower_camel_case(
5182 &mut self,
5183 _: &ConvertToLowerCamelCase,
5184 cx: &mut ViewContext<Self>,
5185 ) {
5186 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5187 }
5188
5189 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5190 where
5191 Fn: FnMut(&str) -> String,
5192 {
5193 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5194 let buffer = self.buffer.read(cx).snapshot(cx);
5195
5196 let mut new_selections = Vec::new();
5197 let mut edits = Vec::new();
5198 let mut selection_adjustment = 0i32;
5199
5200 for selection in self.selections.all::<usize>(cx) {
5201 let selection_is_empty = selection.is_empty();
5202
5203 let (start, end) = if selection_is_empty {
5204 let word_range = movement::surrounding_word(
5205 &display_map,
5206 selection.start.to_display_point(&display_map),
5207 );
5208 let start = word_range.start.to_offset(&display_map, Bias::Left);
5209 let end = word_range.end.to_offset(&display_map, Bias::Left);
5210 (start, end)
5211 } else {
5212 (selection.start, selection.end)
5213 };
5214
5215 let text = buffer.text_for_range(start..end).collect::<String>();
5216 let old_length = text.len() as i32;
5217 let text = callback(&text);
5218
5219 new_selections.push(Selection {
5220 start: (start as i32 - selection_adjustment) as usize,
5221 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5222 goal: SelectionGoal::None,
5223 ..selection
5224 });
5225
5226 selection_adjustment += old_length - text.len() as i32;
5227
5228 edits.push((start..end, text));
5229 }
5230
5231 self.transact(cx, |this, cx| {
5232 this.buffer.update(cx, |buffer, cx| {
5233 buffer.edit(edits, None, cx);
5234 });
5235
5236 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5237 s.select(new_selections);
5238 });
5239
5240 this.request_autoscroll(Autoscroll::fit(), cx);
5241 });
5242 }
5243
5244 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5245 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5246 let buffer = &display_map.buffer_snapshot;
5247 let selections = self.selections.all::<Point>(cx);
5248
5249 let mut edits = Vec::new();
5250 let mut selections_iter = selections.iter().peekable();
5251 while let Some(selection) = selections_iter.next() {
5252 // Avoid duplicating the same lines twice.
5253 let mut rows = selection.spanned_rows(false, &display_map);
5254
5255 while let Some(next_selection) = selections_iter.peek() {
5256 let next_rows = next_selection.spanned_rows(false, &display_map);
5257 if next_rows.start < rows.end {
5258 rows.end = next_rows.end;
5259 selections_iter.next().unwrap();
5260 } else {
5261 break;
5262 }
5263 }
5264
5265 // Copy the text from the selected row region and splice it either at the start
5266 // or end of the region.
5267 let start = Point::new(rows.start, 0);
5268 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5269 let text = buffer
5270 .text_for_range(start..end)
5271 .chain(Some("\n"))
5272 .collect::<String>();
5273 let insert_location = if upwards {
5274 Point::new(rows.end, 0)
5275 } else {
5276 start
5277 };
5278 edits.push((insert_location..insert_location, text));
5279 }
5280
5281 self.transact(cx, |this, cx| {
5282 this.buffer.update(cx, |buffer, cx| {
5283 buffer.edit(edits, None, cx);
5284 });
5285
5286 this.request_autoscroll(Autoscroll::fit(), cx);
5287 });
5288 }
5289
5290 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5291 self.duplicate_line(true, cx);
5292 }
5293
5294 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5295 self.duplicate_line(false, cx);
5296 }
5297
5298 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5299 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5300 let buffer = self.buffer.read(cx).snapshot(cx);
5301
5302 let mut edits = Vec::new();
5303 let mut unfold_ranges = Vec::new();
5304 let mut refold_ranges = Vec::new();
5305
5306 let selections = self.selections.all::<Point>(cx);
5307 let mut selections = selections.iter().peekable();
5308 let mut contiguous_row_selections = Vec::new();
5309 let mut new_selections = Vec::new();
5310
5311 while let Some(selection) = selections.next() {
5312 // Find all the selections that span a contiguous row range
5313 let (start_row, end_row) = consume_contiguous_rows(
5314 &mut contiguous_row_selections,
5315 selection,
5316 &display_map,
5317 &mut selections,
5318 );
5319
5320 // Move the text spanned by the row range to be before the line preceding the row range
5321 if start_row > 0 {
5322 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5323 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5324 let insertion_point = display_map
5325 .prev_line_boundary(Point::new(start_row - 1, 0))
5326 .0;
5327
5328 // Don't move lines across excerpts
5329 if buffer
5330 .excerpt_boundaries_in_range((
5331 Bound::Excluded(insertion_point),
5332 Bound::Included(range_to_move.end),
5333 ))
5334 .next()
5335 .is_none()
5336 {
5337 let text = buffer
5338 .text_for_range(range_to_move.clone())
5339 .flat_map(|s| s.chars())
5340 .skip(1)
5341 .chain(['\n'])
5342 .collect::<String>();
5343
5344 edits.push((
5345 buffer.anchor_after(range_to_move.start)
5346 ..buffer.anchor_before(range_to_move.end),
5347 String::new(),
5348 ));
5349 let insertion_anchor = buffer.anchor_after(insertion_point);
5350 edits.push((insertion_anchor..insertion_anchor, text));
5351
5352 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5353
5354 // Move selections up
5355 new_selections.extend(contiguous_row_selections.drain(..).map(
5356 |mut selection| {
5357 selection.start.row -= row_delta;
5358 selection.end.row -= row_delta;
5359 selection
5360 },
5361 ));
5362
5363 // Move folds up
5364 unfold_ranges.push(range_to_move.clone());
5365 for fold in display_map.folds_in_range(
5366 buffer.anchor_before(range_to_move.start)
5367 ..buffer.anchor_after(range_to_move.end),
5368 ) {
5369 let mut start = fold.range.start.to_point(&buffer);
5370 let mut end = fold.range.end.to_point(&buffer);
5371 start.row -= row_delta;
5372 end.row -= row_delta;
5373 refold_ranges.push(start..end);
5374 }
5375 }
5376 }
5377
5378 // If we didn't move line(s), preserve the existing selections
5379 new_selections.append(&mut contiguous_row_selections);
5380 }
5381
5382 self.transact(cx, |this, cx| {
5383 this.unfold_ranges(unfold_ranges, true, true, cx);
5384 this.buffer.update(cx, |buffer, cx| {
5385 for (range, text) in edits {
5386 buffer.edit([(range, text)], None, cx);
5387 }
5388 });
5389 this.fold_ranges(refold_ranges, true, cx);
5390 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5391 s.select(new_selections);
5392 })
5393 });
5394 }
5395
5396 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5397 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5398 let buffer = self.buffer.read(cx).snapshot(cx);
5399
5400 let mut edits = Vec::new();
5401 let mut unfold_ranges = Vec::new();
5402 let mut refold_ranges = Vec::new();
5403
5404 let selections = self.selections.all::<Point>(cx);
5405 let mut selections = selections.iter().peekable();
5406 let mut contiguous_row_selections = Vec::new();
5407 let mut new_selections = Vec::new();
5408
5409 while let Some(selection) = selections.next() {
5410 // Find all the selections that span a contiguous row range
5411 let (start_row, end_row) = consume_contiguous_rows(
5412 &mut contiguous_row_selections,
5413 selection,
5414 &display_map,
5415 &mut selections,
5416 );
5417
5418 // Move the text spanned by the row range to be after the last line of the row range
5419 if end_row <= buffer.max_point().row {
5420 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5421 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5422
5423 // Don't move lines across excerpt boundaries
5424 if buffer
5425 .excerpt_boundaries_in_range((
5426 Bound::Excluded(range_to_move.start),
5427 Bound::Included(insertion_point),
5428 ))
5429 .next()
5430 .is_none()
5431 {
5432 let mut text = String::from("\n");
5433 text.extend(buffer.text_for_range(range_to_move.clone()));
5434 text.pop(); // Drop trailing newline
5435 edits.push((
5436 buffer.anchor_after(range_to_move.start)
5437 ..buffer.anchor_before(range_to_move.end),
5438 String::new(),
5439 ));
5440 let insertion_anchor = buffer.anchor_after(insertion_point);
5441 edits.push((insertion_anchor..insertion_anchor, text));
5442
5443 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5444
5445 // Move selections down
5446 new_selections.extend(contiguous_row_selections.drain(..).map(
5447 |mut selection| {
5448 selection.start.row += row_delta;
5449 selection.end.row += row_delta;
5450 selection
5451 },
5452 ));
5453
5454 // Move folds down
5455 unfold_ranges.push(range_to_move.clone());
5456 for fold in display_map.folds_in_range(
5457 buffer.anchor_before(range_to_move.start)
5458 ..buffer.anchor_after(range_to_move.end),
5459 ) {
5460 let mut start = fold.range.start.to_point(&buffer);
5461 let mut end = fold.range.end.to_point(&buffer);
5462 start.row += row_delta;
5463 end.row += row_delta;
5464 refold_ranges.push(start..end);
5465 }
5466 }
5467 }
5468
5469 // If we didn't move line(s), preserve the existing selections
5470 new_selections.append(&mut contiguous_row_selections);
5471 }
5472
5473 self.transact(cx, |this, cx| {
5474 this.unfold_ranges(unfold_ranges, true, true, cx);
5475 this.buffer.update(cx, |buffer, cx| {
5476 for (range, text) in edits {
5477 buffer.edit([(range, text)], None, cx);
5478 }
5479 });
5480 this.fold_ranges(refold_ranges, true, cx);
5481 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5482 });
5483 }
5484
5485 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5486 let text_layout_details = &self.text_layout_details(cx);
5487 self.transact(cx, |this, cx| {
5488 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5489 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5490 let line_mode = s.line_mode;
5491 s.move_with(|display_map, selection| {
5492 if !selection.is_empty() || line_mode {
5493 return;
5494 }
5495
5496 let mut head = selection.head();
5497 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5498 if head.column() == display_map.line_len(head.row()) {
5499 transpose_offset = display_map
5500 .buffer_snapshot
5501 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5502 }
5503
5504 if transpose_offset == 0 {
5505 return;
5506 }
5507
5508 *head.column_mut() += 1;
5509 head = display_map.clip_point(head, Bias::Right);
5510 let goal = SelectionGoal::HorizontalPosition(
5511 display_map
5512 .x_for_display_point(head, &text_layout_details)
5513 .into(),
5514 );
5515 selection.collapse_to(head, goal);
5516
5517 let transpose_start = display_map
5518 .buffer_snapshot
5519 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5520 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5521 let transpose_end = display_map
5522 .buffer_snapshot
5523 .clip_offset(transpose_offset + 1, Bias::Right);
5524 if let Some(ch) =
5525 display_map.buffer_snapshot.chars_at(transpose_start).next()
5526 {
5527 edits.push((transpose_start..transpose_offset, String::new()));
5528 edits.push((transpose_end..transpose_end, ch.to_string()));
5529 }
5530 }
5531 });
5532 edits
5533 });
5534 this.buffer
5535 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5536 let selections = this.selections.all::<usize>(cx);
5537 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5538 s.select(selections);
5539 });
5540 });
5541 }
5542
5543 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5544 let mut text = String::new();
5545 let buffer = self.buffer.read(cx).snapshot(cx);
5546 let mut selections = self.selections.all::<Point>(cx);
5547 let mut clipboard_selections = Vec::with_capacity(selections.len());
5548 {
5549 let max_point = buffer.max_point();
5550 let mut is_first = true;
5551 for selection in &mut selections {
5552 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5553 if is_entire_line {
5554 selection.start = Point::new(selection.start.row, 0);
5555 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5556 selection.goal = SelectionGoal::None;
5557 }
5558 if is_first {
5559 is_first = false;
5560 } else {
5561 text += "\n";
5562 }
5563 let mut len = 0;
5564 for chunk in buffer.text_for_range(selection.start..selection.end) {
5565 text.push_str(chunk);
5566 len += chunk.len();
5567 }
5568 clipboard_selections.push(ClipboardSelection {
5569 len,
5570 is_entire_line,
5571 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5572 });
5573 }
5574 }
5575
5576 self.transact(cx, |this, cx| {
5577 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5578 s.select(selections);
5579 });
5580 this.insert("", cx);
5581 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5582 });
5583 }
5584
5585 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5586 let selections = self.selections.all::<Point>(cx);
5587 let buffer = self.buffer.read(cx).read(cx);
5588 let mut text = String::new();
5589
5590 let mut clipboard_selections = Vec::with_capacity(selections.len());
5591 {
5592 let max_point = buffer.max_point();
5593 let mut is_first = true;
5594 for selection in selections.iter() {
5595 let mut start = selection.start;
5596 let mut end = selection.end;
5597 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5598 if is_entire_line {
5599 start = Point::new(start.row, 0);
5600 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5601 }
5602 if is_first {
5603 is_first = false;
5604 } else {
5605 text += "\n";
5606 }
5607 let mut len = 0;
5608 for chunk in buffer.text_for_range(start..end) {
5609 text.push_str(chunk);
5610 len += chunk.len();
5611 }
5612 clipboard_selections.push(ClipboardSelection {
5613 len,
5614 is_entire_line,
5615 first_line_indent: buffer.indent_size_for_line(start.row).len,
5616 });
5617 }
5618 }
5619
5620 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5621 }
5622
5623 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5624 if self.read_only(cx) {
5625 return;
5626 }
5627
5628 self.transact(cx, |this, cx| {
5629 if let Some(item) = cx.read_from_clipboard() {
5630 let clipboard_text = Cow::Borrowed(item.text());
5631 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5632 let old_selections = this.selections.all::<usize>(cx);
5633 let all_selections_were_entire_line =
5634 clipboard_selections.iter().all(|s| s.is_entire_line);
5635 let first_selection_indent_column =
5636 clipboard_selections.first().map(|s| s.first_line_indent);
5637 if clipboard_selections.len() != old_selections.len() {
5638 clipboard_selections.drain(..);
5639 }
5640
5641 this.buffer.update(cx, |buffer, cx| {
5642 let snapshot = buffer.read(cx);
5643 let mut start_offset = 0;
5644 let mut edits = Vec::new();
5645 let mut original_indent_columns = Vec::new();
5646 let line_mode = this.selections.line_mode;
5647 for (ix, selection) in old_selections.iter().enumerate() {
5648 let to_insert;
5649 let entire_line;
5650 let original_indent_column;
5651 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5652 let end_offset = start_offset + clipboard_selection.len;
5653 to_insert = &clipboard_text[start_offset..end_offset];
5654 entire_line = clipboard_selection.is_entire_line;
5655 start_offset = end_offset + 1;
5656 original_indent_column =
5657 Some(clipboard_selection.first_line_indent);
5658 } else {
5659 to_insert = clipboard_text.as_str();
5660 entire_line = all_selections_were_entire_line;
5661 original_indent_column = first_selection_indent_column
5662 }
5663
5664 // If the corresponding selection was empty when this slice of the
5665 // clipboard text was written, then the entire line containing the
5666 // selection was copied. If this selection is also currently empty,
5667 // then paste the line before the current line of the buffer.
5668 let range = if selection.is_empty() && !line_mode && entire_line {
5669 let column = selection.start.to_point(&snapshot).column as usize;
5670 let line_start = selection.start - column;
5671 line_start..line_start
5672 } else {
5673 selection.range()
5674 };
5675
5676 edits.push((range, to_insert));
5677 original_indent_columns.extend(original_indent_column);
5678 }
5679 drop(snapshot);
5680
5681 buffer.edit(
5682 edits,
5683 Some(AutoindentMode::Block {
5684 original_indent_columns,
5685 }),
5686 cx,
5687 );
5688 });
5689
5690 let selections = this.selections.all::<usize>(cx);
5691 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5692 } else {
5693 this.insert(&clipboard_text, cx);
5694 }
5695 }
5696 });
5697 }
5698
5699 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5700 if self.read_only(cx) {
5701 return;
5702 }
5703
5704 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5705 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5706 self.change_selections(None, cx, |s| {
5707 s.select_anchors(selections.to_vec());
5708 });
5709 }
5710 self.request_autoscroll(Autoscroll::fit(), cx);
5711 self.unmark_text(cx);
5712 self.refresh_inline_completion(true, cx);
5713 cx.emit(EditorEvent::Edited);
5714 cx.emit(EditorEvent::TransactionUndone {
5715 transaction_id: tx_id,
5716 });
5717 }
5718 }
5719
5720 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5721 if self.read_only(cx) {
5722 return;
5723 }
5724
5725 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5726 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5727 {
5728 self.change_selections(None, cx, |s| {
5729 s.select_anchors(selections.to_vec());
5730 });
5731 }
5732 self.request_autoscroll(Autoscroll::fit(), cx);
5733 self.unmark_text(cx);
5734 self.refresh_inline_completion(true, cx);
5735 cx.emit(EditorEvent::Edited);
5736 }
5737 }
5738
5739 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5740 self.buffer
5741 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5742 }
5743
5744 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
5745 self.buffer
5746 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
5747 }
5748
5749 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5750 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5751 let line_mode = s.line_mode;
5752 s.move_with(|map, selection| {
5753 let cursor = if selection.is_empty() && !line_mode {
5754 movement::left(map, selection.start)
5755 } else {
5756 selection.start
5757 };
5758 selection.collapse_to(cursor, SelectionGoal::None);
5759 });
5760 })
5761 }
5762
5763 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5764 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5765 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5766 })
5767 }
5768
5769 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5770 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5771 let line_mode = s.line_mode;
5772 s.move_with(|map, selection| {
5773 let cursor = if selection.is_empty() && !line_mode {
5774 movement::right(map, selection.end)
5775 } else {
5776 selection.end
5777 };
5778 selection.collapse_to(cursor, SelectionGoal::None)
5779 });
5780 })
5781 }
5782
5783 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5784 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5785 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5786 })
5787 }
5788
5789 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5790 if self.take_rename(true, cx).is_some() {
5791 return;
5792 }
5793
5794 if matches!(self.mode, EditorMode::SingleLine) {
5795 cx.propagate();
5796 return;
5797 }
5798
5799 let text_layout_details = &self.text_layout_details(cx);
5800
5801 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5802 let line_mode = s.line_mode;
5803 s.move_with(|map, selection| {
5804 if !selection.is_empty() && !line_mode {
5805 selection.goal = SelectionGoal::None;
5806 }
5807 let (cursor, goal) = movement::up(
5808 map,
5809 selection.start,
5810 selection.goal,
5811 false,
5812 &text_layout_details,
5813 );
5814 selection.collapse_to(cursor, goal);
5815 });
5816 })
5817 }
5818
5819 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5820 if self.take_rename(true, cx).is_some() {
5821 return;
5822 }
5823
5824 if matches!(self.mode, EditorMode::SingleLine) {
5825 cx.propagate();
5826 return;
5827 }
5828
5829 let text_layout_details = &self.text_layout_details(cx);
5830
5831 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5832 let line_mode = s.line_mode;
5833 s.move_with(|map, selection| {
5834 if !selection.is_empty() && !line_mode {
5835 selection.goal = SelectionGoal::None;
5836 }
5837 let (cursor, goal) = movement::up_by_rows(
5838 map,
5839 selection.start,
5840 action.lines,
5841 selection.goal,
5842 false,
5843 &text_layout_details,
5844 );
5845 selection.collapse_to(cursor, goal);
5846 });
5847 })
5848 }
5849
5850 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5851 if self.take_rename(true, cx).is_some() {
5852 return;
5853 }
5854
5855 if matches!(self.mode, EditorMode::SingleLine) {
5856 cx.propagate();
5857 return;
5858 }
5859
5860 let text_layout_details = &self.text_layout_details(cx);
5861
5862 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5863 let line_mode = s.line_mode;
5864 s.move_with(|map, selection| {
5865 if !selection.is_empty() && !line_mode {
5866 selection.goal = SelectionGoal::None;
5867 }
5868 let (cursor, goal) = movement::down_by_rows(
5869 map,
5870 selection.start,
5871 action.lines,
5872 selection.goal,
5873 false,
5874 &text_layout_details,
5875 );
5876 selection.collapse_to(cursor, goal);
5877 });
5878 })
5879 }
5880
5881 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5882 let text_layout_details = &self.text_layout_details(cx);
5883 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5884 s.move_heads_with(|map, head, goal| {
5885 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5886 })
5887 })
5888 }
5889
5890 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5891 let text_layout_details = &self.text_layout_details(cx);
5892 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5893 s.move_heads_with(|map, head, goal| {
5894 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5895 })
5896 })
5897 }
5898
5899 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5900 if self.take_rename(true, cx).is_some() {
5901 return;
5902 }
5903
5904 if matches!(self.mode, EditorMode::SingleLine) {
5905 cx.propagate();
5906 return;
5907 }
5908
5909 let row_count = if let Some(row_count) = self.visible_line_count() {
5910 row_count as u32 - 1
5911 } else {
5912 return;
5913 };
5914
5915 let autoscroll = if action.center_cursor {
5916 Autoscroll::center()
5917 } else {
5918 Autoscroll::fit()
5919 };
5920
5921 let text_layout_details = &self.text_layout_details(cx);
5922
5923 self.change_selections(Some(autoscroll), cx, |s| {
5924 let line_mode = s.line_mode;
5925 s.move_with(|map, selection| {
5926 if !selection.is_empty() && !line_mode {
5927 selection.goal = SelectionGoal::None;
5928 }
5929 let (cursor, goal) = movement::up_by_rows(
5930 map,
5931 selection.end,
5932 row_count,
5933 selection.goal,
5934 false,
5935 &text_layout_details,
5936 );
5937 selection.collapse_to(cursor, goal);
5938 });
5939 });
5940 }
5941
5942 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5943 let text_layout_details = &self.text_layout_details(cx);
5944 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5945 s.move_heads_with(|map, head, goal| {
5946 movement::up(map, head, goal, false, &text_layout_details)
5947 })
5948 })
5949 }
5950
5951 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5952 self.take_rename(true, cx);
5953
5954 if self.mode == EditorMode::SingleLine {
5955 cx.propagate();
5956 return;
5957 }
5958
5959 let text_layout_details = &self.text_layout_details(cx);
5960 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5961 let line_mode = s.line_mode;
5962 s.move_with(|map, selection| {
5963 if !selection.is_empty() && !line_mode {
5964 selection.goal = SelectionGoal::None;
5965 }
5966 let (cursor, goal) = movement::down(
5967 map,
5968 selection.end,
5969 selection.goal,
5970 false,
5971 &text_layout_details,
5972 );
5973 selection.collapse_to(cursor, goal);
5974 });
5975 });
5976 }
5977
5978 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5979 if self.take_rename(true, cx).is_some() {
5980 return;
5981 }
5982
5983 if self
5984 .context_menu
5985 .write()
5986 .as_mut()
5987 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5988 .unwrap_or(false)
5989 {
5990 return;
5991 }
5992
5993 if matches!(self.mode, EditorMode::SingleLine) {
5994 cx.propagate();
5995 return;
5996 }
5997
5998 let row_count = if let Some(row_count) = self.visible_line_count() {
5999 row_count as u32 - 1
6000 } else {
6001 return;
6002 };
6003
6004 let autoscroll = if action.center_cursor {
6005 Autoscroll::center()
6006 } else {
6007 Autoscroll::fit()
6008 };
6009
6010 let text_layout_details = &self.text_layout_details(cx);
6011 self.change_selections(Some(autoscroll), cx, |s| {
6012 let line_mode = s.line_mode;
6013 s.move_with(|map, selection| {
6014 if !selection.is_empty() && !line_mode {
6015 selection.goal = SelectionGoal::None;
6016 }
6017 let (cursor, goal) = movement::down_by_rows(
6018 map,
6019 selection.end,
6020 row_count,
6021 selection.goal,
6022 false,
6023 &text_layout_details,
6024 );
6025 selection.collapse_to(cursor, goal);
6026 });
6027 });
6028 }
6029
6030 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6031 let text_layout_details = &self.text_layout_details(cx);
6032 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6033 s.move_heads_with(|map, head, goal| {
6034 movement::down(map, head, goal, false, &text_layout_details)
6035 })
6036 });
6037 }
6038
6039 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6040 if let Some(context_menu) = self.context_menu.write().as_mut() {
6041 context_menu.select_first(self.project.as_ref(), cx);
6042 }
6043 }
6044
6045 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6046 if let Some(context_menu) = self.context_menu.write().as_mut() {
6047 context_menu.select_prev(self.project.as_ref(), cx);
6048 }
6049 }
6050
6051 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6052 if let Some(context_menu) = self.context_menu.write().as_mut() {
6053 context_menu.select_next(self.project.as_ref(), cx);
6054 }
6055 }
6056
6057 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6058 if let Some(context_menu) = self.context_menu.write().as_mut() {
6059 context_menu.select_last(self.project.as_ref(), cx);
6060 }
6061 }
6062
6063 pub fn move_to_previous_word_start(
6064 &mut self,
6065 _: &MoveToPreviousWordStart,
6066 cx: &mut ViewContext<Self>,
6067 ) {
6068 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6069 s.move_cursors_with(|map, head, _| {
6070 (
6071 movement::previous_word_start(map, head),
6072 SelectionGoal::None,
6073 )
6074 });
6075 })
6076 }
6077
6078 pub fn move_to_previous_subword_start(
6079 &mut self,
6080 _: &MoveToPreviousSubwordStart,
6081 cx: &mut ViewContext<Self>,
6082 ) {
6083 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6084 s.move_cursors_with(|map, head, _| {
6085 (
6086 movement::previous_subword_start(map, head),
6087 SelectionGoal::None,
6088 )
6089 });
6090 })
6091 }
6092
6093 pub fn select_to_previous_word_start(
6094 &mut self,
6095 _: &SelectToPreviousWordStart,
6096 cx: &mut ViewContext<Self>,
6097 ) {
6098 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6099 s.move_heads_with(|map, head, _| {
6100 (
6101 movement::previous_word_start(map, head),
6102 SelectionGoal::None,
6103 )
6104 });
6105 })
6106 }
6107
6108 pub fn select_to_previous_subword_start(
6109 &mut self,
6110 _: &SelectToPreviousSubwordStart,
6111 cx: &mut ViewContext<Self>,
6112 ) {
6113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6114 s.move_heads_with(|map, head, _| {
6115 (
6116 movement::previous_subword_start(map, head),
6117 SelectionGoal::None,
6118 )
6119 });
6120 })
6121 }
6122
6123 pub fn delete_to_previous_word_start(
6124 &mut self,
6125 _: &DeleteToPreviousWordStart,
6126 cx: &mut ViewContext<Self>,
6127 ) {
6128 self.transact(cx, |this, cx| {
6129 this.select_autoclose_pair(cx);
6130 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6131 let line_mode = s.line_mode;
6132 s.move_with(|map, selection| {
6133 if selection.is_empty() && !line_mode {
6134 let cursor = movement::previous_word_start(map, selection.head());
6135 selection.set_head(cursor, SelectionGoal::None);
6136 }
6137 });
6138 });
6139 this.insert("", cx);
6140 });
6141 }
6142
6143 pub fn delete_to_previous_subword_start(
6144 &mut self,
6145 _: &DeleteToPreviousSubwordStart,
6146 cx: &mut ViewContext<Self>,
6147 ) {
6148 self.transact(cx, |this, cx| {
6149 this.select_autoclose_pair(cx);
6150 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6151 let line_mode = s.line_mode;
6152 s.move_with(|map, selection| {
6153 if selection.is_empty() && !line_mode {
6154 let cursor = movement::previous_subword_start(map, selection.head());
6155 selection.set_head(cursor, SelectionGoal::None);
6156 }
6157 });
6158 });
6159 this.insert("", cx);
6160 });
6161 }
6162
6163 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6164 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6165 s.move_cursors_with(|map, head, _| {
6166 (movement::next_word_end(map, head), SelectionGoal::None)
6167 });
6168 })
6169 }
6170
6171 pub fn move_to_next_subword_end(
6172 &mut self,
6173 _: &MoveToNextSubwordEnd,
6174 cx: &mut ViewContext<Self>,
6175 ) {
6176 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6177 s.move_cursors_with(|map, head, _| {
6178 (movement::next_subword_end(map, head), SelectionGoal::None)
6179 });
6180 })
6181 }
6182
6183 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6184 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6185 s.move_heads_with(|map, head, _| {
6186 (movement::next_word_end(map, head), SelectionGoal::None)
6187 });
6188 })
6189 }
6190
6191 pub fn select_to_next_subword_end(
6192 &mut self,
6193 _: &SelectToNextSubwordEnd,
6194 cx: &mut ViewContext<Self>,
6195 ) {
6196 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6197 s.move_heads_with(|map, head, _| {
6198 (movement::next_subword_end(map, head), SelectionGoal::None)
6199 });
6200 })
6201 }
6202
6203 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6204 self.transact(cx, |this, cx| {
6205 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6206 let line_mode = s.line_mode;
6207 s.move_with(|map, selection| {
6208 if selection.is_empty() && !line_mode {
6209 let cursor = movement::next_word_end(map, selection.head());
6210 selection.set_head(cursor, SelectionGoal::None);
6211 }
6212 });
6213 });
6214 this.insert("", cx);
6215 });
6216 }
6217
6218 pub fn delete_to_next_subword_end(
6219 &mut self,
6220 _: &DeleteToNextSubwordEnd,
6221 cx: &mut ViewContext<Self>,
6222 ) {
6223 self.transact(cx, |this, cx| {
6224 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6225 s.move_with(|map, selection| {
6226 if selection.is_empty() {
6227 let cursor = movement::next_subword_end(map, selection.head());
6228 selection.set_head(cursor, SelectionGoal::None);
6229 }
6230 });
6231 });
6232 this.insert("", cx);
6233 });
6234 }
6235
6236 pub fn move_to_beginning_of_line(
6237 &mut self,
6238 _: &MoveToBeginningOfLine,
6239 cx: &mut ViewContext<Self>,
6240 ) {
6241 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6242 s.move_cursors_with(|map, head, _| {
6243 (
6244 movement::indented_line_beginning(map, head, true),
6245 SelectionGoal::None,
6246 )
6247 });
6248 })
6249 }
6250
6251 pub fn select_to_beginning_of_line(
6252 &mut self,
6253 action: &SelectToBeginningOfLine,
6254 cx: &mut ViewContext<Self>,
6255 ) {
6256 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6257 s.move_heads_with(|map, head, _| {
6258 (
6259 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6260 SelectionGoal::None,
6261 )
6262 });
6263 });
6264 }
6265
6266 pub fn delete_to_beginning_of_line(
6267 &mut self,
6268 _: &DeleteToBeginningOfLine,
6269 cx: &mut ViewContext<Self>,
6270 ) {
6271 self.transact(cx, |this, cx| {
6272 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6273 s.move_with(|_, selection| {
6274 selection.reversed = true;
6275 });
6276 });
6277
6278 this.select_to_beginning_of_line(
6279 &SelectToBeginningOfLine {
6280 stop_at_soft_wraps: false,
6281 },
6282 cx,
6283 );
6284 this.backspace(&Backspace, cx);
6285 });
6286 }
6287
6288 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6289 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6290 s.move_cursors_with(|map, head, _| {
6291 (movement::line_end(map, head, true), SelectionGoal::None)
6292 });
6293 })
6294 }
6295
6296 pub fn select_to_end_of_line(
6297 &mut self,
6298 action: &SelectToEndOfLine,
6299 cx: &mut ViewContext<Self>,
6300 ) {
6301 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6302 s.move_heads_with(|map, head, _| {
6303 (
6304 movement::line_end(map, head, action.stop_at_soft_wraps),
6305 SelectionGoal::None,
6306 )
6307 });
6308 })
6309 }
6310
6311 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6312 self.transact(cx, |this, cx| {
6313 this.select_to_end_of_line(
6314 &SelectToEndOfLine {
6315 stop_at_soft_wraps: false,
6316 },
6317 cx,
6318 );
6319 this.delete(&Delete, cx);
6320 });
6321 }
6322
6323 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6324 self.transact(cx, |this, cx| {
6325 this.select_to_end_of_line(
6326 &SelectToEndOfLine {
6327 stop_at_soft_wraps: false,
6328 },
6329 cx,
6330 );
6331 this.cut(&Cut, cx);
6332 });
6333 }
6334
6335 pub fn move_to_start_of_paragraph(
6336 &mut self,
6337 _: &MoveToStartOfParagraph,
6338 cx: &mut ViewContext<Self>,
6339 ) {
6340 if matches!(self.mode, EditorMode::SingleLine) {
6341 cx.propagate();
6342 return;
6343 }
6344
6345 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6346 s.move_with(|map, selection| {
6347 selection.collapse_to(
6348 movement::start_of_paragraph(map, selection.head(), 1),
6349 SelectionGoal::None,
6350 )
6351 });
6352 })
6353 }
6354
6355 pub fn move_to_end_of_paragraph(
6356 &mut self,
6357 _: &MoveToEndOfParagraph,
6358 cx: &mut ViewContext<Self>,
6359 ) {
6360 if matches!(self.mode, EditorMode::SingleLine) {
6361 cx.propagate();
6362 return;
6363 }
6364
6365 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6366 s.move_with(|map, selection| {
6367 selection.collapse_to(
6368 movement::end_of_paragraph(map, selection.head(), 1),
6369 SelectionGoal::None,
6370 )
6371 });
6372 })
6373 }
6374
6375 pub fn select_to_start_of_paragraph(
6376 &mut self,
6377 _: &SelectToStartOfParagraph,
6378 cx: &mut ViewContext<Self>,
6379 ) {
6380 if matches!(self.mode, EditorMode::SingleLine) {
6381 cx.propagate();
6382 return;
6383 }
6384
6385 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6386 s.move_heads_with(|map, head, _| {
6387 (
6388 movement::start_of_paragraph(map, head, 1),
6389 SelectionGoal::None,
6390 )
6391 });
6392 })
6393 }
6394
6395 pub fn select_to_end_of_paragraph(
6396 &mut self,
6397 _: &SelectToEndOfParagraph,
6398 cx: &mut ViewContext<Self>,
6399 ) {
6400 if matches!(self.mode, EditorMode::SingleLine) {
6401 cx.propagate();
6402 return;
6403 }
6404
6405 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6406 s.move_heads_with(|map, head, _| {
6407 (
6408 movement::end_of_paragraph(map, head, 1),
6409 SelectionGoal::None,
6410 )
6411 });
6412 })
6413 }
6414
6415 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6416 if matches!(self.mode, EditorMode::SingleLine) {
6417 cx.propagate();
6418 return;
6419 }
6420
6421 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6422 s.select_ranges(vec![0..0]);
6423 });
6424 }
6425
6426 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6427 let mut selection = self.selections.last::<Point>(cx);
6428 selection.set_head(Point::zero(), SelectionGoal::None);
6429
6430 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6431 s.select(vec![selection]);
6432 });
6433 }
6434
6435 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6436 if matches!(self.mode, EditorMode::SingleLine) {
6437 cx.propagate();
6438 return;
6439 }
6440
6441 let cursor = self.buffer.read(cx).read(cx).len();
6442 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6443 s.select_ranges(vec![cursor..cursor])
6444 });
6445 }
6446
6447 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6448 self.nav_history = nav_history;
6449 }
6450
6451 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6452 self.nav_history.as_ref()
6453 }
6454
6455 fn push_to_nav_history(
6456 &mut self,
6457 cursor_anchor: Anchor,
6458 new_position: Option<Point>,
6459 cx: &mut ViewContext<Self>,
6460 ) {
6461 if let Some(nav_history) = self.nav_history.as_mut() {
6462 let buffer = self.buffer.read(cx).read(cx);
6463 let cursor_position = cursor_anchor.to_point(&buffer);
6464 let scroll_state = self.scroll_manager.anchor();
6465 let scroll_top_row = scroll_state.top_row(&buffer);
6466 drop(buffer);
6467
6468 if let Some(new_position) = new_position {
6469 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6470 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6471 return;
6472 }
6473 }
6474
6475 nav_history.push(
6476 Some(NavigationData {
6477 cursor_anchor,
6478 cursor_position,
6479 scroll_anchor: scroll_state,
6480 scroll_top_row,
6481 }),
6482 cx,
6483 );
6484 }
6485 }
6486
6487 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6488 let buffer = self.buffer.read(cx).snapshot(cx);
6489 let mut selection = self.selections.first::<usize>(cx);
6490 selection.set_head(buffer.len(), SelectionGoal::None);
6491 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6492 s.select(vec![selection]);
6493 });
6494 }
6495
6496 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6497 let end = self.buffer.read(cx).read(cx).len();
6498 self.change_selections(None, cx, |s| {
6499 s.select_ranges(vec![0..end]);
6500 });
6501 }
6502
6503 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6504 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6505 let mut selections = self.selections.all::<Point>(cx);
6506 let max_point = display_map.buffer_snapshot.max_point();
6507 for selection in &mut selections {
6508 let rows = selection.spanned_rows(true, &display_map);
6509 selection.start = Point::new(rows.start, 0);
6510 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6511 selection.reversed = false;
6512 }
6513 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6514 s.select(selections);
6515 });
6516 }
6517
6518 pub fn split_selection_into_lines(
6519 &mut self,
6520 _: &SplitSelectionIntoLines,
6521 cx: &mut ViewContext<Self>,
6522 ) {
6523 let mut to_unfold = Vec::new();
6524 let mut new_selection_ranges = Vec::new();
6525 {
6526 let selections = self.selections.all::<Point>(cx);
6527 let buffer = self.buffer.read(cx).read(cx);
6528 for selection in selections {
6529 for row in selection.start.row..selection.end.row {
6530 let cursor = Point::new(row, buffer.line_len(row));
6531 new_selection_ranges.push(cursor..cursor);
6532 }
6533 new_selection_ranges.push(selection.end..selection.end);
6534 to_unfold.push(selection.start..selection.end);
6535 }
6536 }
6537 self.unfold_ranges(to_unfold, true, true, cx);
6538 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6539 s.select_ranges(new_selection_ranges);
6540 });
6541 }
6542
6543 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6544 self.add_selection(true, cx);
6545 }
6546
6547 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6548 self.add_selection(false, cx);
6549 }
6550
6551 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6552 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6553 let mut selections = self.selections.all::<Point>(cx);
6554 let text_layout_details = self.text_layout_details(cx);
6555 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6556 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6557 let range = oldest_selection.display_range(&display_map).sorted();
6558
6559 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6560 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6561 let positions = start_x.min(end_x)..start_x.max(end_x);
6562
6563 selections.clear();
6564 let mut stack = Vec::new();
6565 for row in range.start.row()..=range.end.row() {
6566 if let Some(selection) = self.selections.build_columnar_selection(
6567 &display_map,
6568 row,
6569 &positions,
6570 oldest_selection.reversed,
6571 &text_layout_details,
6572 ) {
6573 stack.push(selection.id);
6574 selections.push(selection);
6575 }
6576 }
6577
6578 if above {
6579 stack.reverse();
6580 }
6581
6582 AddSelectionsState { above, stack }
6583 });
6584
6585 let last_added_selection = *state.stack.last().unwrap();
6586 let mut new_selections = Vec::new();
6587 if above == state.above {
6588 let end_row = if above {
6589 0
6590 } else {
6591 display_map.max_point().row()
6592 };
6593
6594 'outer: for selection in selections {
6595 if selection.id == last_added_selection {
6596 let range = selection.display_range(&display_map).sorted();
6597 debug_assert_eq!(range.start.row(), range.end.row());
6598 let mut row = range.start.row();
6599 let positions =
6600 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6601 px(start)..px(end)
6602 } else {
6603 let start_x =
6604 display_map.x_for_display_point(range.start, &text_layout_details);
6605 let end_x =
6606 display_map.x_for_display_point(range.end, &text_layout_details);
6607 start_x.min(end_x)..start_x.max(end_x)
6608 };
6609
6610 while row != end_row {
6611 if above {
6612 row -= 1;
6613 } else {
6614 row += 1;
6615 }
6616
6617 if let Some(new_selection) = self.selections.build_columnar_selection(
6618 &display_map,
6619 row,
6620 &positions,
6621 selection.reversed,
6622 &text_layout_details,
6623 ) {
6624 state.stack.push(new_selection.id);
6625 if above {
6626 new_selections.push(new_selection);
6627 new_selections.push(selection);
6628 } else {
6629 new_selections.push(selection);
6630 new_selections.push(new_selection);
6631 }
6632
6633 continue 'outer;
6634 }
6635 }
6636 }
6637
6638 new_selections.push(selection);
6639 }
6640 } else {
6641 new_selections = selections;
6642 new_selections.retain(|s| s.id != last_added_selection);
6643 state.stack.pop();
6644 }
6645
6646 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6647 s.select(new_selections);
6648 });
6649 if state.stack.len() > 1 {
6650 self.add_selections_state = Some(state);
6651 }
6652 }
6653
6654 pub fn select_next_match_internal(
6655 &mut self,
6656 display_map: &DisplaySnapshot,
6657 replace_newest: bool,
6658 autoscroll: Option<Autoscroll>,
6659 cx: &mut ViewContext<Self>,
6660 ) -> Result<()> {
6661 fn select_next_match_ranges(
6662 this: &mut Editor,
6663 range: Range<usize>,
6664 replace_newest: bool,
6665 auto_scroll: Option<Autoscroll>,
6666 cx: &mut ViewContext<Editor>,
6667 ) {
6668 this.unfold_ranges([range.clone()], false, true, cx);
6669 this.change_selections(auto_scroll, cx, |s| {
6670 if replace_newest {
6671 s.delete(s.newest_anchor().id);
6672 }
6673 s.insert_range(range.clone());
6674 });
6675 }
6676
6677 let buffer = &display_map.buffer_snapshot;
6678 let mut selections = self.selections.all::<usize>(cx);
6679 if let Some(mut select_next_state) = self.select_next_state.take() {
6680 let query = &select_next_state.query;
6681 if !select_next_state.done {
6682 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6683 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6684 let mut next_selected_range = None;
6685
6686 let bytes_after_last_selection =
6687 buffer.bytes_in_range(last_selection.end..buffer.len());
6688 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6689 let query_matches = query
6690 .stream_find_iter(bytes_after_last_selection)
6691 .map(|result| (last_selection.end, result))
6692 .chain(
6693 query
6694 .stream_find_iter(bytes_before_first_selection)
6695 .map(|result| (0, result)),
6696 );
6697
6698 for (start_offset, query_match) in query_matches {
6699 let query_match = query_match.unwrap(); // can only fail due to I/O
6700 let offset_range =
6701 start_offset + query_match.start()..start_offset + query_match.end();
6702 let display_range = offset_range.start.to_display_point(&display_map)
6703 ..offset_range.end.to_display_point(&display_map);
6704
6705 if !select_next_state.wordwise
6706 || (!movement::is_inside_word(&display_map, display_range.start)
6707 && !movement::is_inside_word(&display_map, display_range.end))
6708 {
6709 // TODO: This is n^2, because we might check all the selections
6710 if !selections
6711 .iter()
6712 .any(|selection| selection.range().overlaps(&offset_range))
6713 {
6714 next_selected_range = Some(offset_range);
6715 break;
6716 }
6717 }
6718 }
6719
6720 if let Some(next_selected_range) = next_selected_range {
6721 select_next_match_ranges(
6722 self,
6723 next_selected_range,
6724 replace_newest,
6725 autoscroll,
6726 cx,
6727 );
6728 } else {
6729 select_next_state.done = true;
6730 }
6731 }
6732
6733 self.select_next_state = Some(select_next_state);
6734 } else {
6735 let mut only_carets = true;
6736 let mut same_text_selected = true;
6737 let mut selected_text = None;
6738
6739 let mut selections_iter = selections.iter().peekable();
6740 while let Some(selection) = selections_iter.next() {
6741 if selection.start != selection.end {
6742 only_carets = false;
6743 }
6744
6745 if same_text_selected {
6746 if selected_text.is_none() {
6747 selected_text =
6748 Some(buffer.text_for_range(selection.range()).collect::<String>());
6749 }
6750
6751 if let Some(next_selection) = selections_iter.peek() {
6752 if next_selection.range().len() == selection.range().len() {
6753 let next_selected_text = buffer
6754 .text_for_range(next_selection.range())
6755 .collect::<String>();
6756 if Some(next_selected_text) != selected_text {
6757 same_text_selected = false;
6758 selected_text = None;
6759 }
6760 } else {
6761 same_text_selected = false;
6762 selected_text = None;
6763 }
6764 }
6765 }
6766 }
6767
6768 if only_carets {
6769 for selection in &mut selections {
6770 let word_range = movement::surrounding_word(
6771 &display_map,
6772 selection.start.to_display_point(&display_map),
6773 );
6774 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6775 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6776 selection.goal = SelectionGoal::None;
6777 selection.reversed = false;
6778 select_next_match_ranges(
6779 self,
6780 selection.start..selection.end,
6781 replace_newest,
6782 autoscroll,
6783 cx,
6784 );
6785 }
6786
6787 if selections.len() == 1 {
6788 let selection = selections
6789 .last()
6790 .expect("ensured that there's only one selection");
6791 let query = buffer
6792 .text_for_range(selection.start..selection.end)
6793 .collect::<String>();
6794 let is_empty = query.is_empty();
6795 let select_state = SelectNextState {
6796 query: AhoCorasick::new(&[query])?,
6797 wordwise: true,
6798 done: is_empty,
6799 };
6800 self.select_next_state = Some(select_state);
6801 } else {
6802 self.select_next_state = None;
6803 }
6804 } else if let Some(selected_text) = selected_text {
6805 self.select_next_state = Some(SelectNextState {
6806 query: AhoCorasick::new(&[selected_text])?,
6807 wordwise: false,
6808 done: false,
6809 });
6810 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6811 }
6812 }
6813 Ok(())
6814 }
6815
6816 pub fn select_all_matches(
6817 &mut self,
6818 _action: &SelectAllMatches,
6819 cx: &mut ViewContext<Self>,
6820 ) -> Result<()> {
6821 self.push_to_selection_history();
6822 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6823
6824 self.select_next_match_internal(&display_map, false, None, cx)?;
6825 let Some(select_next_state) = self.select_next_state.as_mut() else {
6826 return Ok(());
6827 };
6828 if select_next_state.done {
6829 return Ok(());
6830 }
6831
6832 let mut new_selections = self.selections.all::<usize>(cx);
6833
6834 let buffer = &display_map.buffer_snapshot;
6835 let query_matches = select_next_state
6836 .query
6837 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6838
6839 for query_match in query_matches {
6840 let query_match = query_match.unwrap(); // can only fail due to I/O
6841 let offset_range = query_match.start()..query_match.end();
6842 let display_range = offset_range.start.to_display_point(&display_map)
6843 ..offset_range.end.to_display_point(&display_map);
6844
6845 if !select_next_state.wordwise
6846 || (!movement::is_inside_word(&display_map, display_range.start)
6847 && !movement::is_inside_word(&display_map, display_range.end))
6848 {
6849 self.selections.change_with(cx, |selections| {
6850 new_selections.push(Selection {
6851 id: selections.new_selection_id(),
6852 start: offset_range.start,
6853 end: offset_range.end,
6854 reversed: false,
6855 goal: SelectionGoal::None,
6856 });
6857 });
6858 }
6859 }
6860
6861 new_selections.sort_by_key(|selection| selection.start);
6862 let mut ix = 0;
6863 while ix + 1 < new_selections.len() {
6864 let current_selection = &new_selections[ix];
6865 let next_selection = &new_selections[ix + 1];
6866 if current_selection.range().overlaps(&next_selection.range()) {
6867 if current_selection.id < next_selection.id {
6868 new_selections.remove(ix + 1);
6869 } else {
6870 new_selections.remove(ix);
6871 }
6872 } else {
6873 ix += 1;
6874 }
6875 }
6876
6877 select_next_state.done = true;
6878 self.unfold_ranges(
6879 new_selections.iter().map(|selection| selection.range()),
6880 false,
6881 false,
6882 cx,
6883 );
6884 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6885 selections.select(new_selections)
6886 });
6887
6888 Ok(())
6889 }
6890
6891 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6892 self.push_to_selection_history();
6893 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6894 self.select_next_match_internal(
6895 &display_map,
6896 action.replace_newest,
6897 Some(Autoscroll::newest()),
6898 cx,
6899 )?;
6900 Ok(())
6901 }
6902
6903 pub fn select_previous(
6904 &mut self,
6905 action: &SelectPrevious,
6906 cx: &mut ViewContext<Self>,
6907 ) -> Result<()> {
6908 self.push_to_selection_history();
6909 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6910 let buffer = &display_map.buffer_snapshot;
6911 let mut selections = self.selections.all::<usize>(cx);
6912 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6913 let query = &select_prev_state.query;
6914 if !select_prev_state.done {
6915 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6916 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6917 let mut next_selected_range = None;
6918 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6919 let bytes_before_last_selection =
6920 buffer.reversed_bytes_in_range(0..last_selection.start);
6921 let bytes_after_first_selection =
6922 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6923 let query_matches = query
6924 .stream_find_iter(bytes_before_last_selection)
6925 .map(|result| (last_selection.start, result))
6926 .chain(
6927 query
6928 .stream_find_iter(bytes_after_first_selection)
6929 .map(|result| (buffer.len(), result)),
6930 );
6931 for (end_offset, query_match) in query_matches {
6932 let query_match = query_match.unwrap(); // can only fail due to I/O
6933 let offset_range =
6934 end_offset - query_match.end()..end_offset - query_match.start();
6935 let display_range = offset_range.start.to_display_point(&display_map)
6936 ..offset_range.end.to_display_point(&display_map);
6937
6938 if !select_prev_state.wordwise
6939 || (!movement::is_inside_word(&display_map, display_range.start)
6940 && !movement::is_inside_word(&display_map, display_range.end))
6941 {
6942 next_selected_range = Some(offset_range);
6943 break;
6944 }
6945 }
6946
6947 if let Some(next_selected_range) = next_selected_range {
6948 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6949 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6950 if action.replace_newest {
6951 s.delete(s.newest_anchor().id);
6952 }
6953 s.insert_range(next_selected_range);
6954 });
6955 } else {
6956 select_prev_state.done = true;
6957 }
6958 }
6959
6960 self.select_prev_state = Some(select_prev_state);
6961 } else {
6962 let mut only_carets = true;
6963 let mut same_text_selected = true;
6964 let mut selected_text = None;
6965
6966 let mut selections_iter = selections.iter().peekable();
6967 while let Some(selection) = selections_iter.next() {
6968 if selection.start != selection.end {
6969 only_carets = false;
6970 }
6971
6972 if same_text_selected {
6973 if selected_text.is_none() {
6974 selected_text =
6975 Some(buffer.text_for_range(selection.range()).collect::<String>());
6976 }
6977
6978 if let Some(next_selection) = selections_iter.peek() {
6979 if next_selection.range().len() == selection.range().len() {
6980 let next_selected_text = buffer
6981 .text_for_range(next_selection.range())
6982 .collect::<String>();
6983 if Some(next_selected_text) != selected_text {
6984 same_text_selected = false;
6985 selected_text = None;
6986 }
6987 } else {
6988 same_text_selected = false;
6989 selected_text = None;
6990 }
6991 }
6992 }
6993 }
6994
6995 if only_carets {
6996 for selection in &mut selections {
6997 let word_range = movement::surrounding_word(
6998 &display_map,
6999 selection.start.to_display_point(&display_map),
7000 );
7001 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7002 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7003 selection.goal = SelectionGoal::None;
7004 selection.reversed = false;
7005 }
7006 if selections.len() == 1 {
7007 let selection = selections
7008 .last()
7009 .expect("ensured that there's only one selection");
7010 let query = buffer
7011 .text_for_range(selection.start..selection.end)
7012 .collect::<String>();
7013 let is_empty = query.is_empty();
7014 let select_state = SelectNextState {
7015 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7016 wordwise: true,
7017 done: is_empty,
7018 };
7019 self.select_prev_state = Some(select_state);
7020 } else {
7021 self.select_prev_state = None;
7022 }
7023
7024 self.unfold_ranges(
7025 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7026 false,
7027 true,
7028 cx,
7029 );
7030 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7031 s.select(selections);
7032 });
7033 } else if let Some(selected_text) = selected_text {
7034 self.select_prev_state = Some(SelectNextState {
7035 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7036 wordwise: false,
7037 done: false,
7038 });
7039 self.select_previous(action, cx)?;
7040 }
7041 }
7042 Ok(())
7043 }
7044
7045 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7046 let text_layout_details = &self.text_layout_details(cx);
7047 self.transact(cx, |this, cx| {
7048 let mut selections = this.selections.all::<Point>(cx);
7049 let mut edits = Vec::new();
7050 let mut selection_edit_ranges = Vec::new();
7051 let mut last_toggled_row = None;
7052 let snapshot = this.buffer.read(cx).read(cx);
7053 let empty_str: Arc<str> = "".into();
7054 let mut suffixes_inserted = Vec::new();
7055
7056 fn comment_prefix_range(
7057 snapshot: &MultiBufferSnapshot,
7058 row: u32,
7059 comment_prefix: &str,
7060 comment_prefix_whitespace: &str,
7061 ) -> Range<Point> {
7062 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7063
7064 let mut line_bytes = snapshot
7065 .bytes_in_range(start..snapshot.max_point())
7066 .flatten()
7067 .copied();
7068
7069 // If this line currently begins with the line comment prefix, then record
7070 // the range containing the prefix.
7071 if line_bytes
7072 .by_ref()
7073 .take(comment_prefix.len())
7074 .eq(comment_prefix.bytes())
7075 {
7076 // Include any whitespace that matches the comment prefix.
7077 let matching_whitespace_len = line_bytes
7078 .zip(comment_prefix_whitespace.bytes())
7079 .take_while(|(a, b)| a == b)
7080 .count() as u32;
7081 let end = Point::new(
7082 start.row,
7083 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7084 );
7085 start..end
7086 } else {
7087 start..start
7088 }
7089 }
7090
7091 fn comment_suffix_range(
7092 snapshot: &MultiBufferSnapshot,
7093 row: u32,
7094 comment_suffix: &str,
7095 comment_suffix_has_leading_space: bool,
7096 ) -> Range<Point> {
7097 let end = Point::new(row, snapshot.line_len(row));
7098 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7099
7100 let mut line_end_bytes = snapshot
7101 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7102 .flatten()
7103 .copied();
7104
7105 let leading_space_len = if suffix_start_column > 0
7106 && line_end_bytes.next() == Some(b' ')
7107 && comment_suffix_has_leading_space
7108 {
7109 1
7110 } else {
7111 0
7112 };
7113
7114 // If this line currently begins with the line comment prefix, then record
7115 // the range containing the prefix.
7116 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7117 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7118 start..end
7119 } else {
7120 end..end
7121 }
7122 }
7123
7124 // TODO: Handle selections that cross excerpts
7125 for selection in &mut selections {
7126 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7127 let language = if let Some(language) =
7128 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7129 {
7130 language
7131 } else {
7132 continue;
7133 };
7134
7135 selection_edit_ranges.clear();
7136
7137 // If multiple selections contain a given row, avoid processing that
7138 // row more than once.
7139 let mut start_row = selection.start.row;
7140 if last_toggled_row == Some(start_row) {
7141 start_row += 1;
7142 }
7143 let end_row =
7144 if selection.end.row > selection.start.row && selection.end.column == 0 {
7145 selection.end.row - 1
7146 } else {
7147 selection.end.row
7148 };
7149 last_toggled_row = Some(end_row);
7150
7151 if start_row > end_row {
7152 continue;
7153 }
7154
7155 // If the language has line comments, toggle those.
7156 if let Some(full_comment_prefixes) = language
7157 .line_comment_prefixes()
7158 .filter(|prefixes| !prefixes.is_empty())
7159 {
7160 let first_prefix = full_comment_prefixes
7161 .first()
7162 .expect("prefixes is non-empty");
7163 let prefix_trimmed_lengths = full_comment_prefixes
7164 .iter()
7165 .map(|p| p.trim_end_matches(' ').len())
7166 .collect::<SmallVec<[usize; 4]>>();
7167
7168 let mut all_selection_lines_are_comments = true;
7169
7170 for row in start_row..=end_row {
7171 if start_row < end_row && snapshot.is_line_blank(row) {
7172 continue;
7173 }
7174
7175 let prefix_range = full_comment_prefixes
7176 .iter()
7177 .zip(prefix_trimmed_lengths.iter().copied())
7178 .map(|(prefix, trimmed_prefix_len)| {
7179 comment_prefix_range(
7180 snapshot.deref(),
7181 row,
7182 &prefix[..trimmed_prefix_len],
7183 &prefix[trimmed_prefix_len..],
7184 )
7185 })
7186 .max_by_key(|range| range.end.column - range.start.column)
7187 .expect("prefixes is non-empty");
7188
7189 if prefix_range.is_empty() {
7190 all_selection_lines_are_comments = false;
7191 }
7192
7193 selection_edit_ranges.push(prefix_range);
7194 }
7195
7196 if all_selection_lines_are_comments {
7197 edits.extend(
7198 selection_edit_ranges
7199 .iter()
7200 .cloned()
7201 .map(|range| (range, empty_str.clone())),
7202 );
7203 } else {
7204 let min_column = selection_edit_ranges
7205 .iter()
7206 .map(|range| range.start.column)
7207 .min()
7208 .unwrap_or(0);
7209 edits.extend(selection_edit_ranges.iter().map(|range| {
7210 let position = Point::new(range.start.row, min_column);
7211 (position..position, first_prefix.clone())
7212 }));
7213 }
7214 } else if let Some((full_comment_prefix, comment_suffix)) =
7215 language.block_comment_delimiters()
7216 {
7217 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7218 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7219 let prefix_range = comment_prefix_range(
7220 snapshot.deref(),
7221 start_row,
7222 comment_prefix,
7223 comment_prefix_whitespace,
7224 );
7225 let suffix_range = comment_suffix_range(
7226 snapshot.deref(),
7227 end_row,
7228 comment_suffix.trim_start_matches(' '),
7229 comment_suffix.starts_with(' '),
7230 );
7231
7232 if prefix_range.is_empty() || suffix_range.is_empty() {
7233 edits.push((
7234 prefix_range.start..prefix_range.start,
7235 full_comment_prefix.clone(),
7236 ));
7237 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7238 suffixes_inserted.push((end_row, comment_suffix.len()));
7239 } else {
7240 edits.push((prefix_range, empty_str.clone()));
7241 edits.push((suffix_range, empty_str.clone()));
7242 }
7243 } else {
7244 continue;
7245 }
7246 }
7247
7248 drop(snapshot);
7249 this.buffer.update(cx, |buffer, cx| {
7250 buffer.edit(edits, None, cx);
7251 });
7252
7253 // Adjust selections so that they end before any comment suffixes that
7254 // were inserted.
7255 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7256 let mut selections = this.selections.all::<Point>(cx);
7257 let snapshot = this.buffer.read(cx).read(cx);
7258 for selection in &mut selections {
7259 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7260 match row.cmp(&selection.end.row) {
7261 Ordering::Less => {
7262 suffixes_inserted.next();
7263 continue;
7264 }
7265 Ordering::Greater => break,
7266 Ordering::Equal => {
7267 if selection.end.column == snapshot.line_len(row) {
7268 if selection.is_empty() {
7269 selection.start.column -= suffix_len as u32;
7270 }
7271 selection.end.column -= suffix_len as u32;
7272 }
7273 break;
7274 }
7275 }
7276 }
7277 }
7278
7279 drop(snapshot);
7280 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7281
7282 let selections = this.selections.all::<Point>(cx);
7283 let selections_on_single_row = selections.windows(2).all(|selections| {
7284 selections[0].start.row == selections[1].start.row
7285 && selections[0].end.row == selections[1].end.row
7286 && selections[0].start.row == selections[0].end.row
7287 });
7288 let selections_selecting = selections
7289 .iter()
7290 .any(|selection| selection.start != selection.end);
7291 let advance_downwards = action.advance_downwards
7292 && selections_on_single_row
7293 && !selections_selecting
7294 && this.mode != EditorMode::SingleLine;
7295
7296 if advance_downwards {
7297 let snapshot = this.buffer.read(cx).snapshot(cx);
7298
7299 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7300 s.move_cursors_with(|display_snapshot, display_point, _| {
7301 let mut point = display_point.to_point(display_snapshot);
7302 point.row += 1;
7303 point = snapshot.clip_point(point, Bias::Left);
7304 let display_point = point.to_display_point(display_snapshot);
7305 let goal = SelectionGoal::HorizontalPosition(
7306 display_snapshot
7307 .x_for_display_point(display_point, &text_layout_details)
7308 .into(),
7309 );
7310 (display_point, goal)
7311 })
7312 });
7313 }
7314 });
7315 }
7316
7317 pub fn select_larger_syntax_node(
7318 &mut self,
7319 _: &SelectLargerSyntaxNode,
7320 cx: &mut ViewContext<Self>,
7321 ) {
7322 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7323 let buffer = self.buffer.read(cx).snapshot(cx);
7324 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7325
7326 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7327 let mut selected_larger_node = false;
7328 let new_selections = old_selections
7329 .iter()
7330 .map(|selection| {
7331 let old_range = selection.start..selection.end;
7332 let mut new_range = old_range.clone();
7333 while let Some(containing_range) =
7334 buffer.range_for_syntax_ancestor(new_range.clone())
7335 {
7336 new_range = containing_range;
7337 if !display_map.intersects_fold(new_range.start)
7338 && !display_map.intersects_fold(new_range.end)
7339 {
7340 break;
7341 }
7342 }
7343
7344 selected_larger_node |= new_range != old_range;
7345 Selection {
7346 id: selection.id,
7347 start: new_range.start,
7348 end: new_range.end,
7349 goal: SelectionGoal::None,
7350 reversed: selection.reversed,
7351 }
7352 })
7353 .collect::<Vec<_>>();
7354
7355 if selected_larger_node {
7356 stack.push(old_selections);
7357 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7358 s.select(new_selections);
7359 });
7360 }
7361 self.select_larger_syntax_node_stack = stack;
7362 }
7363
7364 pub fn select_smaller_syntax_node(
7365 &mut self,
7366 _: &SelectSmallerSyntaxNode,
7367 cx: &mut ViewContext<Self>,
7368 ) {
7369 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7370 if let Some(selections) = stack.pop() {
7371 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7372 s.select(selections.to_vec());
7373 });
7374 }
7375 self.select_larger_syntax_node_stack = stack;
7376 }
7377
7378 pub fn move_to_enclosing_bracket(
7379 &mut self,
7380 _: &MoveToEnclosingBracket,
7381 cx: &mut ViewContext<Self>,
7382 ) {
7383 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7384 s.move_offsets_with(|snapshot, selection| {
7385 let Some(enclosing_bracket_ranges) =
7386 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7387 else {
7388 return;
7389 };
7390
7391 let mut best_length = usize::MAX;
7392 let mut best_inside = false;
7393 let mut best_in_bracket_range = false;
7394 let mut best_destination = None;
7395 for (open, close) in enclosing_bracket_ranges {
7396 let close = close.to_inclusive();
7397 let length = close.end() - open.start;
7398 let inside = selection.start >= open.end && selection.end <= *close.start();
7399 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7400 || close.contains(&selection.head());
7401
7402 // If best is next to a bracket and current isn't, skip
7403 if !in_bracket_range && best_in_bracket_range {
7404 continue;
7405 }
7406
7407 // Prefer smaller lengths unless best is inside and current isn't
7408 if length > best_length && (best_inside || !inside) {
7409 continue;
7410 }
7411
7412 best_length = length;
7413 best_inside = inside;
7414 best_in_bracket_range = in_bracket_range;
7415 best_destination = Some(
7416 if close.contains(&selection.start) && close.contains(&selection.end) {
7417 if inside {
7418 open.end
7419 } else {
7420 open.start
7421 }
7422 } else {
7423 if inside {
7424 *close.start()
7425 } else {
7426 *close.end()
7427 }
7428 },
7429 );
7430 }
7431
7432 if let Some(destination) = best_destination {
7433 selection.collapse_to(destination, SelectionGoal::None);
7434 }
7435 })
7436 });
7437 }
7438
7439 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7440 self.end_selection(cx);
7441 self.selection_history.mode = SelectionHistoryMode::Undoing;
7442 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7443 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7444 self.select_next_state = entry.select_next_state;
7445 self.select_prev_state = entry.select_prev_state;
7446 self.add_selections_state = entry.add_selections_state;
7447 self.request_autoscroll(Autoscroll::newest(), cx);
7448 }
7449 self.selection_history.mode = SelectionHistoryMode::Normal;
7450 }
7451
7452 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7453 self.end_selection(cx);
7454 self.selection_history.mode = SelectionHistoryMode::Redoing;
7455 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7456 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7457 self.select_next_state = entry.select_next_state;
7458 self.select_prev_state = entry.select_prev_state;
7459 self.add_selections_state = entry.add_selections_state;
7460 self.request_autoscroll(Autoscroll::newest(), cx);
7461 }
7462 self.selection_history.mode = SelectionHistoryMode::Normal;
7463 }
7464
7465 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7466 let selections = self.selections.disjoint_anchors();
7467
7468 let lines = if action.lines == 0 { 3 } else { action.lines };
7469
7470 self.buffer.update(cx, |buffer, cx| {
7471 buffer.expand_excerpts(
7472 selections
7473 .into_iter()
7474 .map(|selection| selection.head().excerpt_id)
7475 .dedup(),
7476 lines,
7477 cx,
7478 )
7479 })
7480 }
7481
7482 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7483 self.buffer
7484 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7485 }
7486
7487 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7488 self.go_to_diagnostic_impl(Direction::Next, cx)
7489 }
7490
7491 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7492 self.go_to_diagnostic_impl(Direction::Prev, cx)
7493 }
7494
7495 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7496 let buffer = self.buffer.read(cx).snapshot(cx);
7497 let selection = self.selections.newest::<usize>(cx);
7498
7499 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7500 if direction == Direction::Next {
7501 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7502 let (group_id, jump_to) = popover.activation_info();
7503 if self.activate_diagnostics(group_id, cx) {
7504 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7505 let mut new_selection = s.newest_anchor().clone();
7506 new_selection.collapse_to(jump_to, SelectionGoal::None);
7507 s.select_anchors(vec![new_selection.clone()]);
7508 });
7509 }
7510 return;
7511 }
7512 }
7513
7514 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7515 active_diagnostics
7516 .primary_range
7517 .to_offset(&buffer)
7518 .to_inclusive()
7519 });
7520 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7521 if active_primary_range.contains(&selection.head()) {
7522 *active_primary_range.end()
7523 } else {
7524 selection.head()
7525 }
7526 } else {
7527 selection.head()
7528 };
7529
7530 loop {
7531 let mut diagnostics = if direction == Direction::Prev {
7532 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7533 } else {
7534 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7535 };
7536 let group = diagnostics.find_map(|entry| {
7537 if entry.diagnostic.is_primary
7538 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7539 && !entry.range.is_empty()
7540 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7541 && !entry.range.contains(&search_start)
7542 {
7543 Some((entry.range, entry.diagnostic.group_id))
7544 } else {
7545 None
7546 }
7547 });
7548
7549 if let Some((primary_range, group_id)) = group {
7550 if self.activate_diagnostics(group_id, cx) {
7551 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7552 s.select(vec![Selection {
7553 id: selection.id,
7554 start: primary_range.start,
7555 end: primary_range.start,
7556 reversed: false,
7557 goal: SelectionGoal::None,
7558 }]);
7559 });
7560 }
7561 break;
7562 } else {
7563 // Cycle around to the start of the buffer, potentially moving back to the start of
7564 // the currently active diagnostic.
7565 active_primary_range.take();
7566 if direction == Direction::Prev {
7567 if search_start == buffer.len() {
7568 break;
7569 } else {
7570 search_start = buffer.len();
7571 }
7572 } else if search_start == 0 {
7573 break;
7574 } else {
7575 search_start = 0;
7576 }
7577 }
7578 }
7579 }
7580
7581 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7582 let snapshot = self
7583 .display_map
7584 .update(cx, |display_map, cx| display_map.snapshot(cx));
7585 let selection = self.selections.newest::<Point>(cx);
7586
7587 if !self.seek_in_direction(
7588 &snapshot,
7589 selection.head(),
7590 false,
7591 snapshot
7592 .buffer_snapshot
7593 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7594 cx,
7595 ) {
7596 let wrapped_point = Point::zero();
7597 self.seek_in_direction(
7598 &snapshot,
7599 wrapped_point,
7600 true,
7601 snapshot
7602 .buffer_snapshot
7603 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7604 cx,
7605 );
7606 }
7607 }
7608
7609 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7610 let snapshot = self
7611 .display_map
7612 .update(cx, |display_map, cx| display_map.snapshot(cx));
7613 let selection = self.selections.newest::<Point>(cx);
7614
7615 if !self.seek_in_direction(
7616 &snapshot,
7617 selection.head(),
7618 false,
7619 snapshot
7620 .buffer_snapshot
7621 .git_diff_hunks_in_range_rev(0..selection.head().row),
7622 cx,
7623 ) {
7624 let wrapped_point = snapshot.buffer_snapshot.max_point();
7625 self.seek_in_direction(
7626 &snapshot,
7627 wrapped_point,
7628 true,
7629 snapshot
7630 .buffer_snapshot
7631 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7632 cx,
7633 );
7634 }
7635 }
7636
7637 fn seek_in_direction(
7638 &mut self,
7639 snapshot: &DisplaySnapshot,
7640 initial_point: Point,
7641 is_wrapped: bool,
7642 hunks: impl Iterator<Item = DiffHunk<u32>>,
7643 cx: &mut ViewContext<Editor>,
7644 ) -> bool {
7645 let display_point = initial_point.to_display_point(snapshot);
7646 let mut hunks = hunks
7647 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7648 .filter(|hunk| {
7649 if is_wrapped {
7650 true
7651 } else {
7652 !hunk.contains_display_row(display_point.row())
7653 }
7654 })
7655 .dedup();
7656
7657 if let Some(hunk) = hunks.next() {
7658 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7659 let row = hunk.start_display_row();
7660 let point = DisplayPoint::new(row, 0);
7661 s.select_display_ranges([point..point]);
7662 });
7663
7664 true
7665 } else {
7666 false
7667 }
7668 }
7669
7670 pub fn go_to_definition(
7671 &mut self,
7672 _: &GoToDefinition,
7673 cx: &mut ViewContext<Self>,
7674 ) -> Task<Result<bool>> {
7675 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7676 }
7677
7678 pub fn go_to_implementation(
7679 &mut self,
7680 _: &GoToImplementation,
7681 cx: &mut ViewContext<Self>,
7682 ) -> Task<Result<bool>> {
7683 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7684 }
7685
7686 pub fn go_to_implementation_split(
7687 &mut self,
7688 _: &GoToImplementationSplit,
7689 cx: &mut ViewContext<Self>,
7690 ) -> Task<Result<bool>> {
7691 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7692 }
7693
7694 pub fn go_to_type_definition(
7695 &mut self,
7696 _: &GoToTypeDefinition,
7697 cx: &mut ViewContext<Self>,
7698 ) -> Task<Result<bool>> {
7699 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7700 }
7701
7702 pub fn go_to_definition_split(
7703 &mut self,
7704 _: &GoToDefinitionSplit,
7705 cx: &mut ViewContext<Self>,
7706 ) -> Task<Result<bool>> {
7707 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7708 }
7709
7710 pub fn go_to_type_definition_split(
7711 &mut self,
7712 _: &GoToTypeDefinitionSplit,
7713 cx: &mut ViewContext<Self>,
7714 ) -> Task<Result<bool>> {
7715 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7716 }
7717
7718 fn go_to_definition_of_kind(
7719 &mut self,
7720 kind: GotoDefinitionKind,
7721 split: bool,
7722 cx: &mut ViewContext<Self>,
7723 ) -> Task<Result<bool>> {
7724 let Some(workspace) = self.workspace() else {
7725 return Task::ready(Ok(false));
7726 };
7727 let buffer = self.buffer.read(cx);
7728 let head = self.selections.newest::<usize>(cx).head();
7729 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7730 text_anchor
7731 } else {
7732 return Task::ready(Ok(false));
7733 };
7734
7735 let project = workspace.read(cx).project().clone();
7736 let definitions = project.update(cx, |project, cx| match kind {
7737 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7738 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7739 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7740 });
7741
7742 cx.spawn(|editor, mut cx| async move {
7743 let definitions = definitions.await?;
7744 let navigated = editor
7745 .update(&mut cx, |editor, cx| {
7746 editor.navigate_to_hover_links(
7747 Some(kind),
7748 definitions.into_iter().map(HoverLink::Text).collect(),
7749 split,
7750 cx,
7751 )
7752 })?
7753 .await?;
7754 anyhow::Ok(navigated)
7755 })
7756 }
7757
7758 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7759 let position = self.selections.newest_anchor().head();
7760 let Some((buffer, buffer_position)) =
7761 self.buffer.read(cx).text_anchor_for_position(position, cx)
7762 else {
7763 return;
7764 };
7765
7766 cx.spawn(|editor, mut cx| async move {
7767 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7768 editor.update(&mut cx, |_, cx| {
7769 cx.open_url(&url);
7770 })
7771 } else {
7772 Ok(())
7773 }
7774 })
7775 .detach();
7776 }
7777
7778 pub(crate) fn navigate_to_hover_links(
7779 &mut self,
7780 kind: Option<GotoDefinitionKind>,
7781 mut definitions: Vec<HoverLink>,
7782 split: bool,
7783 cx: &mut ViewContext<Editor>,
7784 ) -> Task<Result<bool>> {
7785 // If there is one definition, just open it directly
7786 if definitions.len() == 1 {
7787 let definition = definitions.pop().unwrap();
7788 let target_task = match definition {
7789 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7790 HoverLink::InlayHint(lsp_location, server_id) => {
7791 self.compute_target_location(lsp_location, server_id, cx)
7792 }
7793 HoverLink::Url(url) => {
7794 cx.open_url(&url);
7795 Task::ready(Ok(None))
7796 }
7797 };
7798 cx.spawn(|editor, mut cx| async move {
7799 let target = target_task.await.context("target resolution task")?;
7800 if let Some(target) = target {
7801 editor.update(&mut cx, |editor, cx| {
7802 let Some(workspace) = editor.workspace() else {
7803 return false;
7804 };
7805 let pane = workspace.read(cx).active_pane().clone();
7806
7807 let range = target.range.to_offset(target.buffer.read(cx));
7808 let range = editor.range_for_match(&range);
7809 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7810 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
7811 s.select_ranges([range]);
7812 });
7813 } else {
7814 cx.window_context().defer(move |cx| {
7815 let target_editor: View<Self> =
7816 workspace.update(cx, |workspace, cx| {
7817 let pane = if split {
7818 workspace.adjacent_pane(cx)
7819 } else {
7820 workspace.active_pane().clone()
7821 };
7822
7823 workspace.open_project_item(pane, target.buffer.clone(), cx)
7824 });
7825 target_editor.update(cx, |target_editor, cx| {
7826 // When selecting a definition in a different buffer, disable the nav history
7827 // to avoid creating a history entry at the previous cursor location.
7828 pane.update(cx, |pane, _| pane.disable_history());
7829 target_editor.change_selections(
7830 Some(Autoscroll::focused()),
7831 cx,
7832 |s| {
7833 s.select_ranges([range]);
7834 },
7835 );
7836 pane.update(cx, |pane, _| pane.enable_history());
7837 });
7838 });
7839 }
7840 true
7841 })
7842 } else {
7843 Ok(false)
7844 }
7845 })
7846 } else if !definitions.is_empty() {
7847 let replica_id = self.replica_id(cx);
7848 cx.spawn(|editor, mut cx| async move {
7849 let (title, location_tasks, workspace) = editor
7850 .update(&mut cx, |editor, cx| {
7851 let tab_kind = match kind {
7852 Some(GotoDefinitionKind::Implementation) => "Implementations",
7853 _ => "Definitions",
7854 };
7855 let title = definitions
7856 .iter()
7857 .find_map(|definition| match definition {
7858 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7859 let buffer = origin.buffer.read(cx);
7860 format!(
7861 "{} for {}",
7862 tab_kind,
7863 buffer
7864 .text_for_range(origin.range.clone())
7865 .collect::<String>()
7866 )
7867 }),
7868 HoverLink::InlayHint(_, _) => None,
7869 HoverLink::Url(_) => None,
7870 })
7871 .unwrap_or(tab_kind.to_string());
7872 let location_tasks = definitions
7873 .into_iter()
7874 .map(|definition| match definition {
7875 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7876 HoverLink::InlayHint(lsp_location, server_id) => {
7877 editor.compute_target_location(lsp_location, server_id, cx)
7878 }
7879 HoverLink::Url(_) => Task::ready(Ok(None)),
7880 })
7881 .collect::<Vec<_>>();
7882 (title, location_tasks, editor.workspace().clone())
7883 })
7884 .context("location tasks preparation")?;
7885
7886 let locations = futures::future::join_all(location_tasks)
7887 .await
7888 .into_iter()
7889 .filter_map(|location| location.transpose())
7890 .collect::<Result<_>>()
7891 .context("location tasks")?;
7892
7893 let Some(workspace) = workspace else {
7894 return Ok(false);
7895 };
7896 let opened = workspace
7897 .update(&mut cx, |workspace, cx| {
7898 Self::open_locations_in_multibuffer(
7899 workspace, locations, replica_id, title, split, cx,
7900 )
7901 })
7902 .ok();
7903
7904 anyhow::Ok(opened.is_some())
7905 })
7906 } else {
7907 Task::ready(Ok(false))
7908 }
7909 }
7910
7911 fn compute_target_location(
7912 &self,
7913 lsp_location: lsp::Location,
7914 server_id: LanguageServerId,
7915 cx: &mut ViewContext<Editor>,
7916 ) -> Task<anyhow::Result<Option<Location>>> {
7917 let Some(project) = self.project.clone() else {
7918 return Task::Ready(Some(Ok(None)));
7919 };
7920
7921 cx.spawn(move |editor, mut cx| async move {
7922 let location_task = editor.update(&mut cx, |editor, cx| {
7923 project.update(cx, |project, cx| {
7924 let language_server_name =
7925 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7926 project
7927 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7928 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7929 });
7930 language_server_name.map(|language_server_name| {
7931 project.open_local_buffer_via_lsp(
7932 lsp_location.uri.clone(),
7933 server_id,
7934 language_server_name,
7935 cx,
7936 )
7937 })
7938 })
7939 })?;
7940 let location = match location_task {
7941 Some(task) => Some({
7942 let target_buffer_handle = task.await.context("open local buffer")?;
7943 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7944 let target_start = target_buffer
7945 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7946 let target_end = target_buffer
7947 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7948 target_buffer.anchor_after(target_start)
7949 ..target_buffer.anchor_before(target_end)
7950 })?;
7951 Location {
7952 buffer: target_buffer_handle,
7953 range,
7954 }
7955 }),
7956 None => None,
7957 };
7958 Ok(location)
7959 })
7960 }
7961
7962 pub fn find_all_references(
7963 &mut self,
7964 _: &FindAllReferences,
7965 cx: &mut ViewContext<Self>,
7966 ) -> Option<Task<Result<()>>> {
7967 let multi_buffer = self.buffer.read(cx);
7968 let selection = self.selections.newest::<usize>(cx);
7969 let head = selection.head();
7970
7971 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
7972 let head_anchor = multi_buffer_snapshot.anchor_at(
7973 head,
7974 if head < selection.tail() {
7975 Bias::Right
7976 } else {
7977 Bias::Left
7978 },
7979 );
7980
7981 match self
7982 .find_all_references_task_sources
7983 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
7984 {
7985 Ok(_) => {
7986 log::info!(
7987 "Ignoring repeated FindAllReferences invocation with the position of already running task"
7988 );
7989 return None;
7990 }
7991 Err(i) => {
7992 self.find_all_references_task_sources.insert(i, head_anchor);
7993 }
7994 }
7995
7996 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
7997 let replica_id = self.replica_id(cx);
7998 let workspace = self.workspace()?;
7999 let project = workspace.read(cx).project().clone();
8000 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8001 Some(cx.spawn(|editor, mut cx| async move {
8002 let _cleanup = defer({
8003 let mut cx = cx.clone();
8004 move || {
8005 let _ = editor.update(&mut cx, |editor, _| {
8006 if let Ok(i) =
8007 editor
8008 .find_all_references_task_sources
8009 .binary_search_by(|anchor| {
8010 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8011 })
8012 {
8013 editor.find_all_references_task_sources.remove(i);
8014 }
8015 });
8016 }
8017 });
8018
8019 let locations = references.await?;
8020 if locations.is_empty() {
8021 return anyhow::Ok(());
8022 }
8023
8024 workspace.update(&mut cx, |workspace, cx| {
8025 let title = locations
8026 .first()
8027 .as_ref()
8028 .map(|location| {
8029 let buffer = location.buffer.read(cx);
8030 format!(
8031 "References to `{}`",
8032 buffer
8033 .text_for_range(location.range.clone())
8034 .collect::<String>()
8035 )
8036 })
8037 .unwrap();
8038 Self::open_locations_in_multibuffer(
8039 workspace, locations, replica_id, title, false, cx,
8040 );
8041 })
8042 }))
8043 }
8044
8045 /// Opens a multibuffer with the given project locations in it
8046 pub fn open_locations_in_multibuffer(
8047 workspace: &mut Workspace,
8048 mut locations: Vec<Location>,
8049 replica_id: ReplicaId,
8050 title: String,
8051 split: bool,
8052 cx: &mut ViewContext<Workspace>,
8053 ) {
8054 // If there are multiple definitions, open them in a multibuffer
8055 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8056 let mut locations = locations.into_iter().peekable();
8057 let mut ranges_to_highlight = Vec::new();
8058 let capability = workspace.project().read(cx).capability();
8059
8060 let excerpt_buffer = cx.new_model(|cx| {
8061 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8062 while let Some(location) = locations.next() {
8063 let buffer = location.buffer.read(cx);
8064 let mut ranges_for_buffer = Vec::new();
8065 let range = location.range.to_offset(buffer);
8066 ranges_for_buffer.push(range.clone());
8067
8068 while let Some(next_location) = locations.peek() {
8069 if next_location.buffer == location.buffer {
8070 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8071 locations.next();
8072 } else {
8073 break;
8074 }
8075 }
8076
8077 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8078 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8079 location.buffer.clone(),
8080 ranges_for_buffer,
8081 DEFAULT_MULTIBUFFER_CONTEXT,
8082 cx,
8083 ))
8084 }
8085
8086 multibuffer.with_title(title)
8087 });
8088
8089 let editor = cx.new_view(|cx| {
8090 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8091 });
8092 editor.update(cx, |editor, cx| {
8093 editor.highlight_background::<Self>(
8094 &ranges_to_highlight,
8095 |theme| theme.editor_highlighted_line_background,
8096 cx,
8097 );
8098 });
8099 let item = Box::new(editor);
8100 if split {
8101 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8102 } else {
8103 workspace.add_item_to_active_pane(item.clone(), cx);
8104 }
8105 workspace.active_pane().clone().update(cx, |pane, cx| {
8106 let item_id = item.item_id();
8107 pane.set_preview_item_id(Some(item_id), cx);
8108 });
8109 }
8110
8111 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8112 use language::ToOffset as _;
8113
8114 let project = self.project.clone()?;
8115 let selection = self.selections.newest_anchor().clone();
8116 let (cursor_buffer, cursor_buffer_position) = self
8117 .buffer
8118 .read(cx)
8119 .text_anchor_for_position(selection.head(), cx)?;
8120 let (tail_buffer, cursor_buffer_position_end) = self
8121 .buffer
8122 .read(cx)
8123 .text_anchor_for_position(selection.tail(), cx)?;
8124 if tail_buffer != cursor_buffer {
8125 return None;
8126 }
8127
8128 let snapshot = cursor_buffer.read(cx).snapshot();
8129 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8130 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8131 let prepare_rename = project.update(cx, |project, cx| {
8132 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8133 });
8134 drop(snapshot);
8135
8136 Some(cx.spawn(|this, mut cx| async move {
8137 let rename_range = if let Some(range) = prepare_rename.await? {
8138 Some(range)
8139 } else {
8140 this.update(&mut cx, |this, cx| {
8141 let buffer = this.buffer.read(cx).snapshot(cx);
8142 let mut buffer_highlights = this
8143 .document_highlights_for_position(selection.head(), &buffer)
8144 .filter(|highlight| {
8145 highlight.start.excerpt_id == selection.head().excerpt_id
8146 && highlight.end.excerpt_id == selection.head().excerpt_id
8147 });
8148 buffer_highlights
8149 .next()
8150 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8151 })?
8152 };
8153 if let Some(rename_range) = rename_range {
8154 this.update(&mut cx, |this, cx| {
8155 let snapshot = cursor_buffer.read(cx).snapshot();
8156 let rename_buffer_range = rename_range.to_offset(&snapshot);
8157 let cursor_offset_in_rename_range =
8158 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8159 let cursor_offset_in_rename_range_end =
8160 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8161
8162 this.take_rename(false, cx);
8163 let buffer = this.buffer.read(cx).read(cx);
8164 let cursor_offset = selection.head().to_offset(&buffer);
8165 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8166 let rename_end = rename_start + rename_buffer_range.len();
8167 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8168 let mut old_highlight_id = None;
8169 let old_name: Arc<str> = buffer
8170 .chunks(rename_start..rename_end, true)
8171 .map(|chunk| {
8172 if old_highlight_id.is_none() {
8173 old_highlight_id = chunk.syntax_highlight_id;
8174 }
8175 chunk.text
8176 })
8177 .collect::<String>()
8178 .into();
8179
8180 drop(buffer);
8181
8182 // Position the selection in the rename editor so that it matches the current selection.
8183 this.show_local_selections = false;
8184 let rename_editor = cx.new_view(|cx| {
8185 let mut editor = Editor::single_line(cx);
8186 editor.buffer.update(cx, |buffer, cx| {
8187 buffer.edit([(0..0, old_name.clone())], None, cx)
8188 });
8189 let rename_selection_range = match cursor_offset_in_rename_range
8190 .cmp(&cursor_offset_in_rename_range_end)
8191 {
8192 Ordering::Equal => {
8193 editor.select_all(&SelectAll, cx);
8194 return editor;
8195 }
8196 Ordering::Less => {
8197 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8198 }
8199 Ordering::Greater => {
8200 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8201 }
8202 };
8203 if rename_selection_range.end > old_name.len() {
8204 editor.select_all(&SelectAll, cx);
8205 } else {
8206 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8207 s.select_ranges([rename_selection_range]);
8208 });
8209 }
8210 editor
8211 });
8212
8213 let write_highlights =
8214 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8215 let read_highlights =
8216 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8217 let ranges = write_highlights
8218 .iter()
8219 .flat_map(|(_, ranges)| ranges.iter())
8220 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8221 .cloned()
8222 .collect();
8223
8224 this.highlight_text::<Rename>(
8225 ranges,
8226 HighlightStyle {
8227 fade_out: Some(0.6),
8228 ..Default::default()
8229 },
8230 cx,
8231 );
8232 let rename_focus_handle = rename_editor.focus_handle(cx);
8233 cx.focus(&rename_focus_handle);
8234 let block_id = this.insert_blocks(
8235 [BlockProperties {
8236 style: BlockStyle::Flex,
8237 position: range.start,
8238 height: 1,
8239 render: Box::new({
8240 let rename_editor = rename_editor.clone();
8241 move |cx: &mut BlockContext| {
8242 let mut text_style = cx.editor_style.text.clone();
8243 if let Some(highlight_style) = old_highlight_id
8244 .and_then(|h| h.style(&cx.editor_style.syntax))
8245 {
8246 text_style = text_style.highlight(highlight_style);
8247 }
8248 div()
8249 .pl(cx.anchor_x)
8250 .child(EditorElement::new(
8251 &rename_editor,
8252 EditorStyle {
8253 background: cx.theme().system().transparent,
8254 local_player: cx.editor_style.local_player,
8255 text: text_style,
8256 scrollbar_width: cx.editor_style.scrollbar_width,
8257 syntax: cx.editor_style.syntax.clone(),
8258 status: cx.editor_style.status.clone(),
8259 inlay_hints_style: HighlightStyle {
8260 color: Some(cx.theme().status().hint),
8261 font_weight: Some(FontWeight::BOLD),
8262 ..HighlightStyle::default()
8263 },
8264 suggestions_style: HighlightStyle {
8265 color: Some(cx.theme().status().predictive),
8266 ..HighlightStyle::default()
8267 },
8268 },
8269 ))
8270 .into_any_element()
8271 }
8272 }),
8273 disposition: BlockDisposition::Below,
8274 }],
8275 Some(Autoscroll::fit()),
8276 cx,
8277 )[0];
8278 this.pending_rename = Some(RenameState {
8279 range,
8280 old_name,
8281 editor: rename_editor,
8282 block_id,
8283 });
8284 })?;
8285 }
8286
8287 Ok(())
8288 }))
8289 }
8290
8291 pub fn confirm_rename(
8292 &mut self,
8293 _: &ConfirmRename,
8294 cx: &mut ViewContext<Self>,
8295 ) -> Option<Task<Result<()>>> {
8296 let rename = self.take_rename(false, cx)?;
8297 let workspace = self.workspace()?;
8298 let (start_buffer, start) = self
8299 .buffer
8300 .read(cx)
8301 .text_anchor_for_position(rename.range.start, cx)?;
8302 let (end_buffer, end) = self
8303 .buffer
8304 .read(cx)
8305 .text_anchor_for_position(rename.range.end, cx)?;
8306 if start_buffer != end_buffer {
8307 return None;
8308 }
8309
8310 let buffer = start_buffer;
8311 let range = start..end;
8312 let old_name = rename.old_name;
8313 let new_name = rename.editor.read(cx).text(cx);
8314
8315 let rename = workspace
8316 .read(cx)
8317 .project()
8318 .clone()
8319 .update(cx, |project, cx| {
8320 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8321 });
8322 let workspace = workspace.downgrade();
8323
8324 Some(cx.spawn(|editor, mut cx| async move {
8325 let project_transaction = rename.await?;
8326 Self::open_project_transaction(
8327 &editor,
8328 workspace,
8329 project_transaction,
8330 format!("Rename: {} → {}", old_name, new_name),
8331 cx.clone(),
8332 )
8333 .await?;
8334
8335 editor.update(&mut cx, |editor, cx| {
8336 editor.refresh_document_highlights(cx);
8337 })?;
8338 Ok(())
8339 }))
8340 }
8341
8342 fn take_rename(
8343 &mut self,
8344 moving_cursor: bool,
8345 cx: &mut ViewContext<Self>,
8346 ) -> Option<RenameState> {
8347 let rename = self.pending_rename.take()?;
8348 if rename.editor.focus_handle(cx).is_focused(cx) {
8349 cx.focus(&self.focus_handle);
8350 }
8351
8352 self.remove_blocks(
8353 [rename.block_id].into_iter().collect(),
8354 Some(Autoscroll::fit()),
8355 cx,
8356 );
8357 self.clear_highlights::<Rename>(cx);
8358 self.show_local_selections = true;
8359
8360 if moving_cursor {
8361 let rename_editor = rename.editor.read(cx);
8362 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8363
8364 // Update the selection to match the position of the selection inside
8365 // the rename editor.
8366 let snapshot = self.buffer.read(cx).read(cx);
8367 let rename_range = rename.range.to_offset(&snapshot);
8368 let cursor_in_editor = snapshot
8369 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8370 .min(rename_range.end);
8371 drop(snapshot);
8372
8373 self.change_selections(None, cx, |s| {
8374 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8375 });
8376 } else {
8377 self.refresh_document_highlights(cx);
8378 }
8379
8380 Some(rename)
8381 }
8382
8383 pub fn pending_rename(&self) -> Option<&RenameState> {
8384 self.pending_rename.as_ref()
8385 }
8386
8387 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8388 let project = match &self.project {
8389 Some(project) => project.clone(),
8390 None => return None,
8391 };
8392
8393 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8394 }
8395
8396 fn perform_format(
8397 &mut self,
8398 project: Model<Project>,
8399 trigger: FormatTrigger,
8400 cx: &mut ViewContext<Self>,
8401 ) -> Task<Result<()>> {
8402 let buffer = self.buffer().clone();
8403 let mut buffers = buffer.read(cx).all_buffers();
8404 if trigger == FormatTrigger::Save {
8405 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8406 }
8407
8408 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8409 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8410
8411 cx.spawn(|_, mut cx| async move {
8412 let transaction = futures::select_biased! {
8413 () = timeout => {
8414 log::warn!("timed out waiting for formatting");
8415 None
8416 }
8417 transaction = format.log_err().fuse() => transaction,
8418 };
8419
8420 buffer
8421 .update(&mut cx, |buffer, cx| {
8422 if let Some(transaction) = transaction {
8423 if !buffer.is_singleton() {
8424 buffer.push_transaction(&transaction.0, cx);
8425 }
8426 }
8427
8428 cx.notify();
8429 })
8430 .ok();
8431
8432 Ok(())
8433 })
8434 }
8435
8436 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8437 if let Some(project) = self.project.clone() {
8438 self.buffer.update(cx, |multi_buffer, cx| {
8439 project.update(cx, |project, cx| {
8440 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8441 });
8442 })
8443 }
8444 }
8445
8446 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8447 cx.show_character_palette();
8448 }
8449
8450 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8451 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8452 let buffer = self.buffer.read(cx).snapshot(cx);
8453 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8454 let is_valid = buffer
8455 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8456 .any(|entry| {
8457 entry.diagnostic.is_primary
8458 && !entry.range.is_empty()
8459 && entry.range.start == primary_range_start
8460 && entry.diagnostic.message == active_diagnostics.primary_message
8461 });
8462
8463 if is_valid != active_diagnostics.is_valid {
8464 active_diagnostics.is_valid = is_valid;
8465 let mut new_styles = HashMap::default();
8466 for (block_id, diagnostic) in &active_diagnostics.blocks {
8467 new_styles.insert(
8468 *block_id,
8469 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8470 );
8471 }
8472 self.display_map
8473 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8474 }
8475 }
8476 }
8477
8478 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8479 self.dismiss_diagnostics(cx);
8480 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8481 let buffer = self.buffer.read(cx).snapshot(cx);
8482
8483 let mut primary_range = None;
8484 let mut primary_message = None;
8485 let mut group_end = Point::zero();
8486 let diagnostic_group = buffer
8487 .diagnostic_group::<Point>(group_id)
8488 .map(|entry| {
8489 if entry.range.end > group_end {
8490 group_end = entry.range.end;
8491 }
8492 if entry.diagnostic.is_primary {
8493 primary_range = Some(entry.range.clone());
8494 primary_message = Some(entry.diagnostic.message.clone());
8495 }
8496 entry
8497 })
8498 .collect::<Vec<_>>();
8499 let primary_range = primary_range?;
8500 let primary_message = primary_message?;
8501 let primary_range =
8502 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8503
8504 let blocks = display_map
8505 .insert_blocks(
8506 diagnostic_group.iter().map(|entry| {
8507 let diagnostic = entry.diagnostic.clone();
8508 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8509 BlockProperties {
8510 style: BlockStyle::Fixed,
8511 position: buffer.anchor_after(entry.range.start),
8512 height: message_height,
8513 render: diagnostic_block_renderer(diagnostic, true),
8514 disposition: BlockDisposition::Below,
8515 }
8516 }),
8517 cx,
8518 )
8519 .into_iter()
8520 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8521 .collect();
8522
8523 Some(ActiveDiagnosticGroup {
8524 primary_range,
8525 primary_message,
8526 blocks,
8527 is_valid: true,
8528 })
8529 });
8530 self.active_diagnostics.is_some()
8531 }
8532
8533 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8534 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8535 self.display_map.update(cx, |display_map, cx| {
8536 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8537 });
8538 cx.notify();
8539 }
8540 }
8541
8542 pub fn set_selections_from_remote(
8543 &mut self,
8544 selections: Vec<Selection<Anchor>>,
8545 pending_selection: Option<Selection<Anchor>>,
8546 cx: &mut ViewContext<Self>,
8547 ) {
8548 let old_cursor_position = self.selections.newest_anchor().head();
8549 self.selections.change_with(cx, |s| {
8550 s.select_anchors(selections);
8551 if let Some(pending_selection) = pending_selection {
8552 s.set_pending(pending_selection, SelectMode::Character);
8553 } else {
8554 s.clear_pending();
8555 }
8556 });
8557 self.selections_did_change(false, &old_cursor_position, cx);
8558 }
8559
8560 fn push_to_selection_history(&mut self) {
8561 self.selection_history.push(SelectionHistoryEntry {
8562 selections: self.selections.disjoint_anchors(),
8563 select_next_state: self.select_next_state.clone(),
8564 select_prev_state: self.select_prev_state.clone(),
8565 add_selections_state: self.add_selections_state.clone(),
8566 });
8567 }
8568
8569 pub fn transact(
8570 &mut self,
8571 cx: &mut ViewContext<Self>,
8572 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8573 ) -> Option<TransactionId> {
8574 self.start_transaction_at(Instant::now(), cx);
8575 update(self, cx);
8576 self.end_transaction_at(Instant::now(), cx)
8577 }
8578
8579 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8580 self.end_selection(cx);
8581 if let Some(tx_id) = self
8582 .buffer
8583 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8584 {
8585 self.selection_history
8586 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8587 cx.emit(EditorEvent::TransactionBegun {
8588 transaction_id: tx_id,
8589 })
8590 }
8591 }
8592
8593 fn end_transaction_at(
8594 &mut self,
8595 now: Instant,
8596 cx: &mut ViewContext<Self>,
8597 ) -> Option<TransactionId> {
8598 if let Some(tx_id) = self
8599 .buffer
8600 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8601 {
8602 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8603 *end_selections = Some(self.selections.disjoint_anchors());
8604 } else {
8605 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8606 }
8607
8608 cx.emit(EditorEvent::Edited);
8609 Some(tx_id)
8610 } else {
8611 None
8612 }
8613 }
8614
8615 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8616 let mut fold_ranges = Vec::new();
8617
8618 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8619
8620 let selections = self.selections.all_adjusted(cx);
8621 for selection in selections {
8622 let range = selection.range().sorted();
8623 let buffer_start_row = range.start.row;
8624
8625 for row in (0..=range.end.row).rev() {
8626 let fold_range = display_map.foldable_range(row);
8627
8628 if let Some(fold_range) = fold_range {
8629 if fold_range.end.row >= buffer_start_row {
8630 fold_ranges.push(fold_range);
8631 if row <= range.start.row {
8632 break;
8633 }
8634 }
8635 }
8636 }
8637 }
8638
8639 self.fold_ranges(fold_ranges, true, cx);
8640 }
8641
8642 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8643 let buffer_row = fold_at.buffer_row;
8644 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8645
8646 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8647 let autoscroll = self
8648 .selections
8649 .all::<Point>(cx)
8650 .iter()
8651 .any(|selection| fold_range.overlaps(&selection.range()));
8652
8653 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8654 }
8655 }
8656
8657 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8658 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8659 let buffer = &display_map.buffer_snapshot;
8660 let selections = self.selections.all::<Point>(cx);
8661 let ranges = selections
8662 .iter()
8663 .map(|s| {
8664 let range = s.display_range(&display_map).sorted();
8665 let mut start = range.start.to_point(&display_map);
8666 let mut end = range.end.to_point(&display_map);
8667 start.column = 0;
8668 end.column = buffer.line_len(end.row);
8669 start..end
8670 })
8671 .collect::<Vec<_>>();
8672
8673 self.unfold_ranges(ranges, true, true, cx);
8674 }
8675
8676 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8677 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8678
8679 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8680 ..Point::new(
8681 unfold_at.buffer_row,
8682 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8683 );
8684
8685 let autoscroll = self
8686 .selections
8687 .all::<Point>(cx)
8688 .iter()
8689 .any(|selection| selection.range().overlaps(&intersection_range));
8690
8691 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8692 }
8693
8694 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8695 let selections = self.selections.all::<Point>(cx);
8696 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8697 let line_mode = self.selections.line_mode;
8698 let ranges = selections.into_iter().map(|s| {
8699 if line_mode {
8700 let start = Point::new(s.start.row, 0);
8701 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8702 start..end
8703 } else {
8704 s.start..s.end
8705 }
8706 });
8707 self.fold_ranges(ranges, true, cx);
8708 }
8709
8710 pub fn fold_ranges<T: ToOffset + Clone>(
8711 &mut self,
8712 ranges: impl IntoIterator<Item = Range<T>>,
8713 auto_scroll: bool,
8714 cx: &mut ViewContext<Self>,
8715 ) {
8716 let mut ranges = ranges.into_iter().peekable();
8717 if ranges.peek().is_some() {
8718 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8719
8720 if auto_scroll {
8721 self.request_autoscroll(Autoscroll::fit(), cx);
8722 }
8723
8724 cx.notify();
8725 }
8726 }
8727
8728 pub fn unfold_ranges<T: ToOffset + Clone>(
8729 &mut self,
8730 ranges: impl IntoIterator<Item = Range<T>>,
8731 inclusive: bool,
8732 auto_scroll: bool,
8733 cx: &mut ViewContext<Self>,
8734 ) {
8735 let mut ranges = ranges.into_iter().peekable();
8736 if ranges.peek().is_some() {
8737 self.display_map
8738 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8739 if auto_scroll {
8740 self.request_autoscroll(Autoscroll::fit(), cx);
8741 }
8742
8743 cx.notify();
8744 }
8745 }
8746
8747 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8748 if hovered != self.gutter_hovered {
8749 self.gutter_hovered = hovered;
8750 cx.notify();
8751 }
8752 }
8753
8754 pub fn insert_blocks(
8755 &mut self,
8756 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8757 autoscroll: Option<Autoscroll>,
8758 cx: &mut ViewContext<Self>,
8759 ) -> Vec<BlockId> {
8760 let blocks = self
8761 .display_map
8762 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8763 if let Some(autoscroll) = autoscroll {
8764 self.request_autoscroll(autoscroll, cx);
8765 }
8766 blocks
8767 }
8768
8769 pub fn replace_blocks(
8770 &mut self,
8771 blocks: HashMap<BlockId, RenderBlock>,
8772 autoscroll: Option<Autoscroll>,
8773 cx: &mut ViewContext<Self>,
8774 ) {
8775 self.display_map
8776 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8777 if let Some(autoscroll) = autoscroll {
8778 self.request_autoscroll(autoscroll, cx);
8779 }
8780 }
8781
8782 pub fn remove_blocks(
8783 &mut self,
8784 block_ids: HashSet<BlockId>,
8785 autoscroll: Option<Autoscroll>,
8786 cx: &mut ViewContext<Self>,
8787 ) {
8788 self.display_map.update(cx, |display_map, cx| {
8789 display_map.remove_blocks(block_ids, cx)
8790 });
8791 if let Some(autoscroll) = autoscroll {
8792 self.request_autoscroll(autoscroll, cx);
8793 }
8794 }
8795
8796 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8797 self.display_map
8798 .update(cx, |map, cx| map.snapshot(cx))
8799 .longest_row()
8800 }
8801
8802 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8803 self.display_map
8804 .update(cx, |map, cx| map.snapshot(cx))
8805 .max_point()
8806 }
8807
8808 pub fn text(&self, cx: &AppContext) -> String {
8809 self.buffer.read(cx).read(cx).text()
8810 }
8811
8812 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8813 let text = self.text(cx);
8814 let text = text.trim();
8815
8816 if text.is_empty() {
8817 return None;
8818 }
8819
8820 Some(text.to_string())
8821 }
8822
8823 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8824 self.transact(cx, |this, cx| {
8825 this.buffer
8826 .read(cx)
8827 .as_singleton()
8828 .expect("you can only call set_text on editors for singleton buffers")
8829 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8830 });
8831 }
8832
8833 pub fn display_text(&self, cx: &mut AppContext) -> String {
8834 self.display_map
8835 .update(cx, |map, cx| map.snapshot(cx))
8836 .text()
8837 }
8838
8839 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8840 let mut wrap_guides = smallvec::smallvec![];
8841
8842 if self.show_wrap_guides == Some(false) {
8843 return wrap_guides;
8844 }
8845
8846 let settings = self.buffer.read(cx).settings_at(0, cx);
8847 if settings.show_wrap_guides {
8848 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8849 wrap_guides.push((soft_wrap as usize, true));
8850 }
8851 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8852 }
8853
8854 wrap_guides
8855 }
8856
8857 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8858 let settings = self.buffer.read(cx).settings_at(0, cx);
8859 let mode = self
8860 .soft_wrap_mode_override
8861 .unwrap_or_else(|| settings.soft_wrap);
8862 match mode {
8863 language_settings::SoftWrap::None => SoftWrap::None,
8864 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8865 language_settings::SoftWrap::PreferredLineLength => {
8866 SoftWrap::Column(settings.preferred_line_length)
8867 }
8868 }
8869 }
8870
8871 pub fn set_soft_wrap_mode(
8872 &mut self,
8873 mode: language_settings::SoftWrap,
8874 cx: &mut ViewContext<Self>,
8875 ) {
8876 self.soft_wrap_mode_override = Some(mode);
8877 cx.notify();
8878 }
8879
8880 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8881 let rem_size = cx.rem_size();
8882 self.display_map.update(cx, |map, cx| {
8883 map.set_font(
8884 style.text.font(),
8885 style.text.font_size.to_pixels(rem_size),
8886 cx,
8887 )
8888 });
8889 self.style = Some(style);
8890 }
8891
8892 pub fn style(&self) -> Option<&EditorStyle> {
8893 self.style.as_ref()
8894 }
8895
8896 // Called by the element. This method is not designed to be called outside of the editor
8897 // element's layout code because it does not notify when rewrapping is computed synchronously.
8898 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8899 self.display_map
8900 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8901 }
8902
8903 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8904 if self.soft_wrap_mode_override.is_some() {
8905 self.soft_wrap_mode_override.take();
8906 } else {
8907 let soft_wrap = match self.soft_wrap_mode(cx) {
8908 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8909 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8910 };
8911 self.soft_wrap_mode_override = Some(soft_wrap);
8912 }
8913 cx.notify();
8914 }
8915
8916 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8917 let mut editor_settings = EditorSettings::get_global(cx).clone();
8918 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8919 EditorSettings::override_global(editor_settings, cx);
8920 }
8921
8922 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8923 self.show_gutter = show_gutter;
8924 cx.notify();
8925 }
8926
8927 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8928 self.show_wrap_guides = Some(show_gutter);
8929 cx.notify();
8930 }
8931
8932 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8933 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8934 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8935 cx.reveal_path(&file.abs_path(cx));
8936 }
8937 }
8938 }
8939
8940 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8941 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8942 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8943 if let Some(path) = file.abs_path(cx).to_str() {
8944 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8945 }
8946 }
8947 }
8948 }
8949
8950 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8951 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8952 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8953 if let Some(path) = file.path().to_str() {
8954 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8955 }
8956 }
8957 }
8958 }
8959
8960 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
8961 self.show_git_blame_gutter = !self.show_git_blame_gutter;
8962
8963 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
8964 self.start_git_blame(true, cx);
8965 }
8966
8967 cx.notify();
8968 }
8969
8970 pub fn toggle_git_blame_inline(
8971 &mut self,
8972 _: &ToggleGitBlameInline,
8973 cx: &mut ViewContext<Self>,
8974 ) {
8975 self.toggle_git_blame_inline_internal(true, cx);
8976 cx.notify();
8977 }
8978
8979 pub fn git_blame_inline_enabled(&self) -> bool {
8980 self.git_blame_inline_enabled
8981 }
8982
8983 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
8984 if let Some(project) = self.project.as_ref() {
8985 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
8986 return;
8987 };
8988
8989 let project = project.clone();
8990 let blame = cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, cx));
8991 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
8992 self.blame = Some(blame);
8993 }
8994 }
8995
8996 fn toggle_git_blame_inline_internal(
8997 &mut self,
8998 user_triggered: bool,
8999 cx: &mut ViewContext<Self>,
9000 ) {
9001 if self.git_blame_inline_enabled {
9002 self.git_blame_inline_enabled = false;
9003 self.show_git_blame_inline = false;
9004 self.show_git_blame_inline_delay_task.take();
9005 } else {
9006 self.git_blame_inline_enabled = true;
9007 self.start_git_blame_inline(user_triggered, cx);
9008 }
9009
9010 cx.notify();
9011 }
9012
9013 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9014 self.start_git_blame(user_triggered, cx);
9015
9016 if ProjectSettings::get_global(cx)
9017 .git
9018 .inline_blame_delay()
9019 .is_some()
9020 {
9021 self.start_inline_blame_timer(cx);
9022 } else {
9023 self.show_git_blame_inline = true
9024 }
9025 }
9026
9027 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9028 self.blame.as_ref()
9029 }
9030
9031 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9032 self.show_git_blame_gutter && self.has_blame_entries(cx)
9033 }
9034
9035 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9036 self.focus_handle.is_focused(cx) && self.show_git_blame_inline && self.has_blame_entries(cx)
9037 }
9038
9039 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9040 self.blame()
9041 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9042 }
9043
9044 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9045 let (path, repo) = maybe!({
9046 let project_handle = self.project.as_ref()?.clone();
9047 let project = project_handle.read(cx);
9048 let buffer = self.buffer().read(cx).as_singleton()?;
9049 let path = buffer
9050 .read(cx)
9051 .file()?
9052 .as_local()?
9053 .path()
9054 .to_str()?
9055 .to_string();
9056 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9057 Some((path, repo))
9058 })
9059 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9060
9061 const REMOTE_NAME: &str = "origin";
9062 let origin_url = repo
9063 .lock()
9064 .remote_url(REMOTE_NAME)
9065 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9066 let sha = repo
9067 .lock()
9068 .head_sha()
9069 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9070 let selections = self.selections.all::<Point>(cx);
9071 let selection = selections.iter().peekable().next();
9072
9073 build_permalink(BuildPermalinkParams {
9074 remote_url: &origin_url,
9075 sha: &sha,
9076 path: &path,
9077 selection: selection.map(|selection| {
9078 let range = selection.range();
9079 let start = range.start.row;
9080 let end = range.end.row;
9081 start..end
9082 }),
9083 })
9084 }
9085
9086 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9087 let permalink = self.get_permalink_to_line(cx);
9088
9089 match permalink {
9090 Ok(permalink) => {
9091 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9092 }
9093 Err(err) => {
9094 let message = format!("Failed to copy permalink: {err}");
9095
9096 Err::<(), anyhow::Error>(err).log_err();
9097
9098 if let Some(workspace) = self.workspace() {
9099 workspace.update(cx, |workspace, cx| {
9100 struct CopyPermalinkToLine;
9101
9102 workspace.show_toast(
9103 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9104 cx,
9105 )
9106 })
9107 }
9108 }
9109 }
9110 }
9111
9112 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9113 let permalink = self.get_permalink_to_line(cx);
9114
9115 match permalink {
9116 Ok(permalink) => {
9117 cx.open_url(permalink.as_ref());
9118 }
9119 Err(err) => {
9120 let message = format!("Failed to open permalink: {err}");
9121
9122 Err::<(), anyhow::Error>(err).log_err();
9123
9124 if let Some(workspace) = self.workspace() {
9125 workspace.update(cx, |workspace, cx| {
9126 struct OpenPermalinkToLine;
9127
9128 workspace.show_toast(
9129 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9130 cx,
9131 )
9132 })
9133 }
9134 }
9135 }
9136 }
9137
9138 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9139 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9140 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9141 pub fn highlight_rows<T: 'static>(
9142 &mut self,
9143 rows: Range<Anchor>,
9144 color: Option<Hsla>,
9145 cx: &mut ViewContext<Self>,
9146 ) {
9147 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9148 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9149 hash_map::Entry::Occupied(o) => {
9150 let row_highlights = o.into_mut();
9151 let existing_highlight_index =
9152 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9153 highlight_range
9154 .start
9155 .cmp(&rows.start, &multi_buffer_snapshot)
9156 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
9157 });
9158 match color {
9159 Some(color) => {
9160 let insert_index = match existing_highlight_index {
9161 Ok(i) => i,
9162 Err(i) => i,
9163 };
9164 row_highlights.insert(
9165 insert_index,
9166 (post_inc(&mut self.highlight_order), rows, color),
9167 );
9168 }
9169 None => {
9170 if let Ok(i) = existing_highlight_index {
9171 row_highlights.remove(i);
9172 }
9173 }
9174 }
9175 }
9176 hash_map::Entry::Vacant(v) => {
9177 if let Some(color) = color {
9178 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9179 }
9180 }
9181 }
9182 }
9183
9184 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9185 pub fn clear_row_highlights<T: 'static>(&mut self) {
9186 self.highlighted_rows.remove(&TypeId::of::<T>());
9187 }
9188
9189 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9190 pub fn highlighted_rows<T: 'static>(
9191 &self,
9192 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9193 Some(
9194 self.highlighted_rows
9195 .get(&TypeId::of::<T>())?
9196 .iter()
9197 .map(|(_, range, color)| (range, color)),
9198 )
9199 }
9200
9201 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9202 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9203 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
9204 let snapshot = self.snapshot(cx);
9205 let mut used_highlight_orders = HashMap::default();
9206 self.highlighted_rows
9207 .iter()
9208 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9209 .fold(
9210 BTreeMap::<u32, Hsla>::new(),
9211 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9212 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9213 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9214 for row in start_row..=end_row {
9215 let used_index =
9216 used_highlight_orders.entry(row).or_insert(*highlight_order);
9217 if highlight_order >= used_index {
9218 *used_index = *highlight_order;
9219 unique_rows.insert(row, *hsla);
9220 }
9221 }
9222 unique_rows
9223 },
9224 )
9225 }
9226
9227 pub fn highlight_background<T: 'static>(
9228 &mut self,
9229 ranges: &[Range<Anchor>],
9230 color_fetcher: fn(&ThemeColors) -> Hsla,
9231 cx: &mut ViewContext<Self>,
9232 ) {
9233 let snapshot = self.snapshot(cx);
9234 // this is to try and catch a panic sooner
9235 for range in ranges {
9236 snapshot
9237 .buffer_snapshot
9238 .summary_for_anchor::<usize>(&range.start);
9239 snapshot
9240 .buffer_snapshot
9241 .summary_for_anchor::<usize>(&range.end);
9242 }
9243
9244 self.background_highlights
9245 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9246 self.scrollbar_marker_state.dirty = true;
9247 cx.notify();
9248 }
9249
9250 pub fn clear_background_highlights<T: 'static>(
9251 &mut self,
9252 cx: &mut ViewContext<Self>,
9253 ) -> Option<BackgroundHighlight> {
9254 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9255 if !text_highlights.1.is_empty() {
9256 self.scrollbar_marker_state.dirty = true;
9257 cx.notify();
9258 }
9259 Some(text_highlights)
9260 }
9261
9262 #[cfg(feature = "test-support")]
9263 pub fn all_text_background_highlights(
9264 &mut self,
9265 cx: &mut ViewContext<Self>,
9266 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9267 let snapshot = self.snapshot(cx);
9268 let buffer = &snapshot.buffer_snapshot;
9269 let start = buffer.anchor_before(0);
9270 let end = buffer.anchor_after(buffer.len());
9271 let theme = cx.theme().colors();
9272 self.background_highlights_in_range(start..end, &snapshot, theme)
9273 }
9274
9275 fn document_highlights_for_position<'a>(
9276 &'a self,
9277 position: Anchor,
9278 buffer: &'a MultiBufferSnapshot,
9279 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9280 let read_highlights = self
9281 .background_highlights
9282 .get(&TypeId::of::<DocumentHighlightRead>())
9283 .map(|h| &h.1);
9284 let write_highlights = self
9285 .background_highlights
9286 .get(&TypeId::of::<DocumentHighlightWrite>())
9287 .map(|h| &h.1);
9288 let left_position = position.bias_left(buffer);
9289 let right_position = position.bias_right(buffer);
9290 read_highlights
9291 .into_iter()
9292 .chain(write_highlights)
9293 .flat_map(move |ranges| {
9294 let start_ix = match ranges.binary_search_by(|probe| {
9295 let cmp = probe.end.cmp(&left_position, buffer);
9296 if cmp.is_ge() {
9297 Ordering::Greater
9298 } else {
9299 Ordering::Less
9300 }
9301 }) {
9302 Ok(i) | Err(i) => i,
9303 };
9304
9305 ranges[start_ix..]
9306 .iter()
9307 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9308 })
9309 }
9310
9311 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9312 self.background_highlights
9313 .get(&TypeId::of::<T>())
9314 .map_or(false, |(_, highlights)| !highlights.is_empty())
9315 }
9316
9317 pub fn background_highlights_in_range(
9318 &self,
9319 search_range: Range<Anchor>,
9320 display_snapshot: &DisplaySnapshot,
9321 theme: &ThemeColors,
9322 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9323 let mut results = Vec::new();
9324 for (color_fetcher, ranges) in self.background_highlights.values() {
9325 let color = color_fetcher(theme);
9326 let start_ix = match ranges.binary_search_by(|probe| {
9327 let cmp = probe
9328 .end
9329 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9330 if cmp.is_gt() {
9331 Ordering::Greater
9332 } else {
9333 Ordering::Less
9334 }
9335 }) {
9336 Ok(i) | Err(i) => i,
9337 };
9338 for range in &ranges[start_ix..] {
9339 if range
9340 .start
9341 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9342 .is_ge()
9343 {
9344 break;
9345 }
9346
9347 let start = range.start.to_display_point(&display_snapshot);
9348 let end = range.end.to_display_point(&display_snapshot);
9349 results.push((start..end, color))
9350 }
9351 }
9352 results
9353 }
9354
9355 pub fn background_highlight_row_ranges<T: 'static>(
9356 &self,
9357 search_range: Range<Anchor>,
9358 display_snapshot: &DisplaySnapshot,
9359 count: usize,
9360 ) -> Vec<RangeInclusive<DisplayPoint>> {
9361 let mut results = Vec::new();
9362 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9363 return vec![];
9364 };
9365
9366 let start_ix = match ranges.binary_search_by(|probe| {
9367 let cmp = probe
9368 .end
9369 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9370 if cmp.is_gt() {
9371 Ordering::Greater
9372 } else {
9373 Ordering::Less
9374 }
9375 }) {
9376 Ok(i) | Err(i) => i,
9377 };
9378 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9379 if let (Some(start_display), Some(end_display)) = (start, end) {
9380 results.push(
9381 start_display.to_display_point(display_snapshot)
9382 ..=end_display.to_display_point(display_snapshot),
9383 );
9384 }
9385 };
9386 let mut start_row: Option<Point> = None;
9387 let mut end_row: Option<Point> = None;
9388 if ranges.len() > count {
9389 return Vec::new();
9390 }
9391 for range in &ranges[start_ix..] {
9392 if range
9393 .start
9394 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9395 .is_ge()
9396 {
9397 break;
9398 }
9399 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9400 if let Some(current_row) = &end_row {
9401 if end.row == current_row.row {
9402 continue;
9403 }
9404 }
9405 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9406 if start_row.is_none() {
9407 assert_eq!(end_row, None);
9408 start_row = Some(start);
9409 end_row = Some(end);
9410 continue;
9411 }
9412 if let Some(current_end) = end_row.as_mut() {
9413 if start.row > current_end.row + 1 {
9414 push_region(start_row, end_row);
9415 start_row = Some(start);
9416 end_row = Some(end);
9417 } else {
9418 // Merge two hunks.
9419 *current_end = end;
9420 }
9421 } else {
9422 unreachable!();
9423 }
9424 }
9425 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9426 push_region(start_row, end_row);
9427 results
9428 }
9429
9430 /// Get the text ranges corresponding to the redaction query
9431 pub fn redacted_ranges(
9432 &self,
9433 search_range: Range<Anchor>,
9434 display_snapshot: &DisplaySnapshot,
9435 cx: &WindowContext,
9436 ) -> Vec<Range<DisplayPoint>> {
9437 display_snapshot
9438 .buffer_snapshot
9439 .redacted_ranges(search_range, |file| {
9440 if let Some(file) = file {
9441 file.is_private()
9442 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9443 } else {
9444 false
9445 }
9446 })
9447 .map(|range| {
9448 range.start.to_display_point(display_snapshot)
9449 ..range.end.to_display_point(display_snapshot)
9450 })
9451 .collect()
9452 }
9453
9454 pub fn highlight_text<T: 'static>(
9455 &mut self,
9456 ranges: Vec<Range<Anchor>>,
9457 style: HighlightStyle,
9458 cx: &mut ViewContext<Self>,
9459 ) {
9460 self.display_map.update(cx, |map, _| {
9461 map.highlight_text(TypeId::of::<T>(), ranges, style)
9462 });
9463 cx.notify();
9464 }
9465
9466 pub(crate) fn highlight_inlays<T: 'static>(
9467 &mut self,
9468 highlights: Vec<InlayHighlight>,
9469 style: HighlightStyle,
9470 cx: &mut ViewContext<Self>,
9471 ) {
9472 self.display_map.update(cx, |map, _| {
9473 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9474 });
9475 cx.notify();
9476 }
9477
9478 pub fn text_highlights<'a, T: 'static>(
9479 &'a self,
9480 cx: &'a AppContext,
9481 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9482 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9483 }
9484
9485 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9486 let cleared = self
9487 .display_map
9488 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9489 if cleared {
9490 cx.notify();
9491 }
9492 }
9493
9494 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9495 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9496 && self.focus_handle.is_focused(cx)
9497 }
9498
9499 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9500 cx.notify();
9501 }
9502
9503 fn on_buffer_event(
9504 &mut self,
9505 multibuffer: Model<MultiBuffer>,
9506 event: &multi_buffer::Event,
9507 cx: &mut ViewContext<Self>,
9508 ) {
9509 match event {
9510 multi_buffer::Event::Edited {
9511 singleton_buffer_edited,
9512 } => {
9513 self.scrollbar_marker_state.dirty = true;
9514 self.refresh_active_diagnostics(cx);
9515 self.refresh_code_actions(cx);
9516 if self.has_active_inline_completion(cx) {
9517 self.update_visible_inline_completion(cx);
9518 }
9519 cx.emit(EditorEvent::BufferEdited);
9520 cx.emit(SearchEvent::MatchesInvalidated);
9521
9522 if *singleton_buffer_edited {
9523 if let Some(project) = &self.project {
9524 let project = project.read(cx);
9525 let languages_affected = multibuffer
9526 .read(cx)
9527 .all_buffers()
9528 .into_iter()
9529 .filter_map(|buffer| {
9530 let buffer = buffer.read(cx);
9531 let language = buffer.language()?;
9532 if project.is_local()
9533 && project.language_servers_for_buffer(buffer, cx).count() == 0
9534 {
9535 None
9536 } else {
9537 Some(language)
9538 }
9539 })
9540 .cloned()
9541 .collect::<HashSet<_>>();
9542 if !languages_affected.is_empty() {
9543 self.refresh_inlay_hints(
9544 InlayHintRefreshReason::BufferEdited(languages_affected),
9545 cx,
9546 );
9547 }
9548 }
9549 }
9550
9551 let Some(project) = &self.project else { return };
9552 let telemetry = project.read(cx).client().telemetry().clone();
9553 telemetry.log_edit_event("editor");
9554 }
9555 multi_buffer::Event::ExcerptsAdded {
9556 buffer,
9557 predecessor,
9558 excerpts,
9559 } => {
9560 cx.emit(EditorEvent::ExcerptsAdded {
9561 buffer: buffer.clone(),
9562 predecessor: *predecessor,
9563 excerpts: excerpts.clone(),
9564 });
9565 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9566 }
9567 multi_buffer::Event::ExcerptsRemoved { ids } => {
9568 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9569 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9570 }
9571 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9572 multi_buffer::Event::LanguageChanged => {
9573 cx.emit(EditorEvent::Reparsed);
9574 cx.notify();
9575 }
9576 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9577 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9578 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9579 cx.emit(EditorEvent::TitleChanged)
9580 }
9581 multi_buffer::Event::DiffBaseChanged => {
9582 self.scrollbar_marker_state.dirty = true;
9583 cx.emit(EditorEvent::DiffBaseChanged);
9584 cx.notify();
9585 }
9586 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9587 multi_buffer::Event::DiagnosticsUpdated => {
9588 self.refresh_active_diagnostics(cx);
9589 self.scrollbar_marker_state.dirty = true;
9590 cx.notify();
9591 }
9592 _ => {}
9593 };
9594 }
9595
9596 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9597 cx.notify();
9598 }
9599
9600 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9601 self.refresh_inline_completion(true, cx);
9602 self.refresh_inlay_hints(
9603 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9604 self.selections.newest_anchor().head(),
9605 &self.buffer.read(cx).snapshot(cx),
9606 cx,
9607 )),
9608 cx,
9609 );
9610 let editor_settings = EditorSettings::get_global(cx);
9611 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9612 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9613
9614 if self.mode == EditorMode::Full {
9615 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
9616 if self.git_blame_inline_enabled != inline_blame_enabled {
9617 self.toggle_git_blame_inline_internal(false, cx);
9618 }
9619 }
9620
9621 cx.notify();
9622 }
9623
9624 pub fn set_searchable(&mut self, searchable: bool) {
9625 self.searchable = searchable;
9626 }
9627
9628 pub fn searchable(&self) -> bool {
9629 self.searchable
9630 }
9631
9632 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9633 self.open_excerpts_common(true, cx)
9634 }
9635
9636 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9637 self.open_excerpts_common(false, cx)
9638 }
9639
9640 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9641 let buffer = self.buffer.read(cx);
9642 if buffer.is_singleton() {
9643 cx.propagate();
9644 return;
9645 }
9646
9647 let Some(workspace) = self.workspace() else {
9648 cx.propagate();
9649 return;
9650 };
9651
9652 let mut new_selections_by_buffer = HashMap::default();
9653 for selection in self.selections.all::<usize>(cx) {
9654 for (buffer, mut range, _) in
9655 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9656 {
9657 if selection.reversed {
9658 mem::swap(&mut range.start, &mut range.end);
9659 }
9660 new_selections_by_buffer
9661 .entry(buffer)
9662 .or_insert(Vec::new())
9663 .push(range)
9664 }
9665 }
9666
9667 // We defer the pane interaction because we ourselves are a workspace item
9668 // and activating a new item causes the pane to call a method on us reentrantly,
9669 // which panics if we're on the stack.
9670 cx.window_context().defer(move |cx| {
9671 workspace.update(cx, |workspace, cx| {
9672 let pane = if split {
9673 workspace.adjacent_pane(cx)
9674 } else {
9675 workspace.active_pane().clone()
9676 };
9677
9678 for (buffer, ranges) in new_selections_by_buffer {
9679 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9680 editor.update(cx, |editor, cx| {
9681 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9682 s.select_ranges(ranges);
9683 });
9684 });
9685 }
9686 })
9687 });
9688 }
9689
9690 fn jump(
9691 &mut self,
9692 path: ProjectPath,
9693 position: Point,
9694 anchor: language::Anchor,
9695 offset_from_top: u32,
9696 cx: &mut ViewContext<Self>,
9697 ) {
9698 let workspace = self.workspace();
9699 cx.spawn(|_, mut cx| async move {
9700 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9701 let editor = workspace.update(&mut cx, |workspace, cx| {
9702 // Reset the preview item id before opening the new item
9703 workspace.active_pane().update(cx, |pane, cx| {
9704 pane.set_preview_item_id(None, cx);
9705 });
9706 workspace.open_path_preview(path, None, true, true, cx)
9707 })?;
9708 let editor = editor
9709 .await?
9710 .downcast::<Editor>()
9711 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9712 .downgrade();
9713 editor.update(&mut cx, |editor, cx| {
9714 let buffer = editor
9715 .buffer()
9716 .read(cx)
9717 .as_singleton()
9718 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9719 let buffer = buffer.read(cx);
9720 let cursor = if buffer.can_resolve(&anchor) {
9721 language::ToPoint::to_point(&anchor, buffer)
9722 } else {
9723 buffer.clip_point(position, Bias::Left)
9724 };
9725
9726 let nav_history = editor.nav_history.take();
9727 editor.change_selections(
9728 Some(Autoscroll::top_relative(offset_from_top as usize)),
9729 cx,
9730 |s| {
9731 s.select_ranges([cursor..cursor]);
9732 },
9733 );
9734 editor.nav_history = nav_history;
9735
9736 anyhow::Ok(())
9737 })??;
9738
9739 anyhow::Ok(())
9740 })
9741 .detach_and_log_err(cx);
9742 }
9743
9744 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9745 let snapshot = self.buffer.read(cx).read(cx);
9746 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9747 Some(
9748 ranges
9749 .iter()
9750 .map(move |range| {
9751 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9752 })
9753 .collect(),
9754 )
9755 }
9756
9757 fn selection_replacement_ranges(
9758 &self,
9759 range: Range<OffsetUtf16>,
9760 cx: &AppContext,
9761 ) -> Vec<Range<OffsetUtf16>> {
9762 let selections = self.selections.all::<OffsetUtf16>(cx);
9763 let newest_selection = selections
9764 .iter()
9765 .max_by_key(|selection| selection.id)
9766 .unwrap();
9767 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9768 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9769 let snapshot = self.buffer.read(cx).read(cx);
9770 selections
9771 .into_iter()
9772 .map(|mut selection| {
9773 selection.start.0 =
9774 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9775 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9776 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9777 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9778 })
9779 .collect()
9780 }
9781
9782 fn report_editor_event(
9783 &self,
9784 operation: &'static str,
9785 file_extension: Option<String>,
9786 cx: &AppContext,
9787 ) {
9788 if cfg!(any(test, feature = "test-support")) {
9789 return;
9790 }
9791
9792 let Some(project) = &self.project else { return };
9793
9794 // If None, we are in a file without an extension
9795 let file = self
9796 .buffer
9797 .read(cx)
9798 .as_singleton()
9799 .and_then(|b| b.read(cx).file());
9800 let file_extension = file_extension.or(file
9801 .as_ref()
9802 .and_then(|file| Path::new(file.file_name(cx)).extension())
9803 .and_then(|e| e.to_str())
9804 .map(|a| a.to_string()));
9805
9806 let vim_mode = cx
9807 .global::<SettingsStore>()
9808 .raw_user_settings()
9809 .get("vim_mode")
9810 == Some(&serde_json::Value::Bool(true));
9811 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9812 let copilot_enabled_for_language = self
9813 .buffer
9814 .read(cx)
9815 .settings_at(0, cx)
9816 .show_copilot_suggestions;
9817
9818 let telemetry = project.read(cx).client().telemetry().clone();
9819 telemetry.report_editor_event(
9820 file_extension,
9821 vim_mode,
9822 operation,
9823 copilot_enabled,
9824 copilot_enabled_for_language,
9825 )
9826 }
9827
9828 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9829 /// with each line being an array of {text, highlight} objects.
9830 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9831 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9832 return;
9833 };
9834
9835 #[derive(Serialize)]
9836 struct Chunk<'a> {
9837 text: String,
9838 highlight: Option<&'a str>,
9839 }
9840
9841 let snapshot = buffer.read(cx).snapshot();
9842 let range = self
9843 .selected_text_range(cx)
9844 .and_then(|selected_range| {
9845 if selected_range.is_empty() {
9846 None
9847 } else {
9848 Some(selected_range)
9849 }
9850 })
9851 .unwrap_or_else(|| 0..snapshot.len());
9852
9853 let chunks = snapshot.chunks(range, true);
9854 let mut lines = Vec::new();
9855 let mut line: VecDeque<Chunk> = VecDeque::new();
9856
9857 let Some(style) = self.style.as_ref() else {
9858 return;
9859 };
9860
9861 for chunk in chunks {
9862 let highlight = chunk
9863 .syntax_highlight_id
9864 .and_then(|id| id.name(&style.syntax));
9865 let mut chunk_lines = chunk.text.split('\n').peekable();
9866 while let Some(text) = chunk_lines.next() {
9867 let mut merged_with_last_token = false;
9868 if let Some(last_token) = line.back_mut() {
9869 if last_token.highlight == highlight {
9870 last_token.text.push_str(text);
9871 merged_with_last_token = true;
9872 }
9873 }
9874
9875 if !merged_with_last_token {
9876 line.push_back(Chunk {
9877 text: text.into(),
9878 highlight,
9879 });
9880 }
9881
9882 if chunk_lines.peek().is_some() {
9883 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9884 line.pop_front();
9885 }
9886 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9887 line.pop_back();
9888 }
9889
9890 lines.push(mem::take(&mut line));
9891 }
9892 }
9893 }
9894
9895 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9896 return;
9897 };
9898 cx.write_to_clipboard(ClipboardItem::new(lines));
9899 }
9900
9901 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9902 &self.inlay_hint_cache
9903 }
9904
9905 pub fn replay_insert_event(
9906 &mut self,
9907 text: &str,
9908 relative_utf16_range: Option<Range<isize>>,
9909 cx: &mut ViewContext<Self>,
9910 ) {
9911 if !self.input_enabled {
9912 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9913 return;
9914 }
9915 if let Some(relative_utf16_range) = relative_utf16_range {
9916 let selections = self.selections.all::<OffsetUtf16>(cx);
9917 self.change_selections(None, cx, |s| {
9918 let new_ranges = selections.into_iter().map(|range| {
9919 let start = OffsetUtf16(
9920 range
9921 .head()
9922 .0
9923 .saturating_add_signed(relative_utf16_range.start),
9924 );
9925 let end = OffsetUtf16(
9926 range
9927 .head()
9928 .0
9929 .saturating_add_signed(relative_utf16_range.end),
9930 );
9931 start..end
9932 });
9933 s.select_ranges(new_ranges);
9934 });
9935 }
9936
9937 self.handle_input(text, cx);
9938 }
9939
9940 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9941 let Some(project) = self.project.as_ref() else {
9942 return false;
9943 };
9944 let project = project.read(cx);
9945
9946 let mut supports = false;
9947 self.buffer().read(cx).for_each_buffer(|buffer| {
9948 if !supports {
9949 supports = project
9950 .language_servers_for_buffer(buffer.read(cx), cx)
9951 .any(
9952 |(_, server)| match server.capabilities().inlay_hint_provider {
9953 Some(lsp::OneOf::Left(enabled)) => enabled,
9954 Some(lsp::OneOf::Right(_)) => true,
9955 None => false,
9956 },
9957 )
9958 }
9959 });
9960 supports
9961 }
9962
9963 pub fn focus(&self, cx: &mut WindowContext) {
9964 cx.focus(&self.focus_handle)
9965 }
9966
9967 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9968 self.focus_handle.is_focused(cx)
9969 }
9970
9971 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9972 cx.emit(EditorEvent::Focused);
9973
9974 if let Some(rename) = self.pending_rename.as_ref() {
9975 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9976 cx.focus(&rename_editor_focus_handle);
9977 } else {
9978 self.blink_manager.update(cx, BlinkManager::enable);
9979 self.show_cursor_names(cx);
9980 self.buffer.update(cx, |buffer, cx| {
9981 buffer.finalize_last_transaction(cx);
9982 if self.leader_peer_id.is_none() {
9983 buffer.set_active_selections(
9984 &self.selections.disjoint_anchors(),
9985 self.selections.line_mode,
9986 self.cursor_shape,
9987 cx,
9988 );
9989 }
9990 });
9991 }
9992 }
9993
9994 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9995 self.blink_manager.update(cx, BlinkManager::disable);
9996 self.buffer
9997 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9998 self.hide_context_menu(cx);
9999 hide_hover(self, cx);
10000 cx.emit(EditorEvent::Blurred);
10001 cx.notify();
10002 }
10003
10004 pub fn register_action<A: Action>(
10005 &mut self,
10006 listener: impl Fn(&A, &mut WindowContext) + 'static,
10007 ) -> &mut Self {
10008 let listener = Arc::new(listener);
10009
10010 self.editor_actions.push(Box::new(move |cx| {
10011 let _view = cx.view().clone();
10012 let cx = cx.window_context();
10013 let listener = listener.clone();
10014 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10015 let action = action.downcast_ref().unwrap();
10016 if phase == DispatchPhase::Bubble {
10017 listener(action, cx)
10018 }
10019 })
10020 }));
10021 self
10022 }
10023}
10024
10025pub trait CollaborationHub {
10026 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10027 fn user_participant_indices<'a>(
10028 &self,
10029 cx: &'a AppContext,
10030 ) -> &'a HashMap<u64, ParticipantIndex>;
10031 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10032}
10033
10034impl CollaborationHub for Model<Project> {
10035 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10036 self.read(cx).collaborators()
10037 }
10038
10039 fn user_participant_indices<'a>(
10040 &self,
10041 cx: &'a AppContext,
10042 ) -> &'a HashMap<u64, ParticipantIndex> {
10043 self.read(cx).user_store().read(cx).participant_indices()
10044 }
10045
10046 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10047 let this = self.read(cx);
10048 let user_ids = this.collaborators().values().map(|c| c.user_id);
10049 this.user_store().read_with(cx, |user_store, cx| {
10050 user_store.participant_names(user_ids, cx)
10051 })
10052 }
10053}
10054
10055pub trait CompletionProvider {
10056 fn completions(
10057 &self,
10058 buffer: &Model<Buffer>,
10059 buffer_position: text::Anchor,
10060 cx: &mut ViewContext<Editor>,
10061 ) -> Task<Result<Vec<Completion>>>;
10062
10063 fn resolve_completions(
10064 &self,
10065 completion_indices: Vec<usize>,
10066 completions: Arc<RwLock<Box<[Completion]>>>,
10067 cx: &mut ViewContext<Editor>,
10068 ) -> Task<Result<bool>>;
10069
10070 fn apply_additional_edits_for_completion(
10071 &self,
10072 buffer: Model<Buffer>,
10073 completion: Completion,
10074 push_to_history: bool,
10075 cx: &mut ViewContext<Editor>,
10076 ) -> Task<Result<Option<language::Transaction>>>;
10077}
10078
10079impl CompletionProvider for Model<Project> {
10080 fn completions(
10081 &self,
10082 buffer: &Model<Buffer>,
10083 buffer_position: text::Anchor,
10084 cx: &mut ViewContext<Editor>,
10085 ) -> Task<Result<Vec<Completion>>> {
10086 self.update(cx, |project, cx| {
10087 project.completions(&buffer, buffer_position, cx)
10088 })
10089 }
10090
10091 fn resolve_completions(
10092 &self,
10093 completion_indices: Vec<usize>,
10094 completions: Arc<RwLock<Box<[Completion]>>>,
10095 cx: &mut ViewContext<Editor>,
10096 ) -> Task<Result<bool>> {
10097 self.update(cx, |project, cx| {
10098 project.resolve_completions(completion_indices, completions, cx)
10099 })
10100 }
10101
10102 fn apply_additional_edits_for_completion(
10103 &self,
10104 buffer: Model<Buffer>,
10105 completion: Completion,
10106 push_to_history: bool,
10107 cx: &mut ViewContext<Editor>,
10108 ) -> Task<Result<Option<language::Transaction>>> {
10109 self.update(cx, |project, cx| {
10110 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10111 })
10112 }
10113}
10114
10115fn inlay_hint_settings(
10116 location: Anchor,
10117 snapshot: &MultiBufferSnapshot,
10118 cx: &mut ViewContext<'_, Editor>,
10119) -> InlayHintSettings {
10120 let file = snapshot.file_at(location);
10121 let language = snapshot.language_at(location);
10122 let settings = all_language_settings(file, cx);
10123 settings
10124 .language(language.map(|l| l.name()).as_deref())
10125 .inlay_hints
10126}
10127
10128fn consume_contiguous_rows(
10129 contiguous_row_selections: &mut Vec<Selection<Point>>,
10130 selection: &Selection<Point>,
10131 display_map: &DisplaySnapshot,
10132 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10133) -> (u32, u32) {
10134 contiguous_row_selections.push(selection.clone());
10135 let start_row = selection.start.row;
10136 let mut end_row = ending_row(selection, display_map);
10137
10138 while let Some(next_selection) = selections.peek() {
10139 if next_selection.start.row <= end_row {
10140 end_row = ending_row(next_selection, display_map);
10141 contiguous_row_selections.push(selections.next().unwrap().clone());
10142 } else {
10143 break;
10144 }
10145 }
10146 (start_row, end_row)
10147}
10148
10149fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10150 if next_selection.end.column > 0 || next_selection.is_empty() {
10151 display_map.next_line_boundary(next_selection.end).0.row + 1
10152 } else {
10153 next_selection.end.row
10154 }
10155}
10156
10157impl EditorSnapshot {
10158 pub fn remote_selections_in_range<'a>(
10159 &'a self,
10160 range: &'a Range<Anchor>,
10161 collaboration_hub: &dyn CollaborationHub,
10162 cx: &'a AppContext,
10163 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10164 let participant_names = collaboration_hub.user_names(cx);
10165 let participant_indices = collaboration_hub.user_participant_indices(cx);
10166 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10167 let collaborators_by_replica_id = collaborators_by_peer_id
10168 .iter()
10169 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10170 .collect::<HashMap<_, _>>();
10171 self.buffer_snapshot
10172 .remote_selections_in_range(range)
10173 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10174 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10175 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10176 let user_name = participant_names.get(&collaborator.user_id).cloned();
10177 Some(RemoteSelection {
10178 replica_id,
10179 selection,
10180 cursor_shape,
10181 line_mode,
10182 participant_index,
10183 peer_id: collaborator.peer_id,
10184 user_name,
10185 })
10186 })
10187 }
10188
10189 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10190 self.display_snapshot.buffer_snapshot.language_at(position)
10191 }
10192
10193 pub fn is_focused(&self) -> bool {
10194 self.is_focused
10195 }
10196
10197 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10198 self.placeholder_text.as_ref()
10199 }
10200
10201 pub fn scroll_position(&self) -> gpui::Point<f32> {
10202 self.scroll_anchor.scroll_position(&self.display_snapshot)
10203 }
10204
10205 pub fn gutter_dimensions(
10206 &self,
10207 font_id: FontId,
10208 font_size: Pixels,
10209 em_width: Pixels,
10210 max_line_number_width: Pixels,
10211 cx: &AppContext,
10212 ) -> GutterDimensions {
10213 if !self.show_gutter {
10214 return GutterDimensions::default();
10215 }
10216 let descent = cx.text_system().descent(font_id, font_size);
10217
10218 let show_git_gutter = matches!(
10219 ProjectSettings::get_global(cx).git.git_gutter,
10220 Some(GitGutterSetting::TrackedFiles)
10221 );
10222 let gutter_settings = EditorSettings::get_global(cx).gutter;
10223
10224 let line_gutter_width = if gutter_settings.line_numbers {
10225 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10226 let min_width_for_number_on_gutter = em_width * 4.0;
10227 max_line_number_width.max(min_width_for_number_on_gutter)
10228 } else {
10229 0.0.into()
10230 };
10231
10232 let git_blame_entries_width = self
10233 .render_git_blame_gutter
10234 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10235
10236 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10237 left_padding += if gutter_settings.code_actions {
10238 em_width * 3.0
10239 } else if show_git_gutter && gutter_settings.line_numbers {
10240 em_width * 2.0
10241 } else if show_git_gutter || gutter_settings.line_numbers {
10242 em_width
10243 } else {
10244 px(0.)
10245 };
10246
10247 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
10248 em_width * 4.0
10249 } else if gutter_settings.folds {
10250 em_width * 3.0
10251 } else if gutter_settings.line_numbers {
10252 em_width
10253 } else {
10254 px(0.)
10255 };
10256
10257 GutterDimensions {
10258 left_padding,
10259 right_padding,
10260 width: line_gutter_width + left_padding + right_padding,
10261 margin: -descent,
10262 git_blame_entries_width,
10263 }
10264 }
10265}
10266
10267impl Deref for EditorSnapshot {
10268 type Target = DisplaySnapshot;
10269
10270 fn deref(&self) -> &Self::Target {
10271 &self.display_snapshot
10272 }
10273}
10274
10275#[derive(Clone, Debug, PartialEq, Eq)]
10276pub enum EditorEvent {
10277 InputIgnored {
10278 text: Arc<str>,
10279 },
10280 InputHandled {
10281 utf16_range_to_replace: Option<Range<isize>>,
10282 text: Arc<str>,
10283 },
10284 ExcerptsAdded {
10285 buffer: Model<Buffer>,
10286 predecessor: ExcerptId,
10287 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10288 },
10289 ExcerptsRemoved {
10290 ids: Vec<ExcerptId>,
10291 },
10292 BufferEdited,
10293 Edited,
10294 Reparsed,
10295 Focused,
10296 Blurred,
10297 DirtyChanged,
10298 Saved,
10299 TitleChanged,
10300 DiffBaseChanged,
10301 SelectionsChanged {
10302 local: bool,
10303 },
10304 ScrollPositionChanged {
10305 local: bool,
10306 autoscroll: bool,
10307 },
10308 Closed,
10309 TransactionUndone {
10310 transaction_id: clock::Lamport,
10311 },
10312 TransactionBegun {
10313 transaction_id: clock::Lamport,
10314 },
10315}
10316
10317impl EventEmitter<EditorEvent> for Editor {}
10318
10319impl FocusableView for Editor {
10320 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10321 self.focus_handle.clone()
10322 }
10323}
10324
10325impl Render for Editor {
10326 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10327 let settings = ThemeSettings::get_global(cx);
10328
10329 let text_style = match self.mode {
10330 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10331 color: cx.theme().colors().editor_foreground,
10332 font_family: settings.ui_font.family.clone(),
10333 font_features: settings.ui_font.features,
10334 font_size: rems(0.875).into(),
10335 font_weight: FontWeight::NORMAL,
10336 font_style: FontStyle::Normal,
10337 line_height: relative(settings.buffer_line_height.value()),
10338 background_color: None,
10339 underline: None,
10340 strikethrough: None,
10341 white_space: WhiteSpace::Normal,
10342 },
10343 EditorMode::Full => TextStyle {
10344 color: cx.theme().colors().editor_foreground,
10345 font_family: settings.buffer_font.family.clone(),
10346 font_features: settings.buffer_font.features,
10347 font_size: settings.buffer_font_size(cx).into(),
10348 font_weight: FontWeight::NORMAL,
10349 font_style: FontStyle::Normal,
10350 line_height: relative(settings.buffer_line_height.value()),
10351 background_color: None,
10352 underline: None,
10353 strikethrough: None,
10354 white_space: WhiteSpace::Normal,
10355 },
10356 };
10357
10358 let background = match self.mode {
10359 EditorMode::SingleLine => cx.theme().system().transparent,
10360 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10361 EditorMode::Full => cx.theme().colors().editor_background,
10362 };
10363
10364 EditorElement::new(
10365 cx.view(),
10366 EditorStyle {
10367 background,
10368 local_player: cx.theme().players().local(),
10369 text: text_style,
10370 scrollbar_width: px(13.),
10371 syntax: cx.theme().syntax().clone(),
10372 status: cx.theme().status().clone(),
10373 inlay_hints_style: HighlightStyle {
10374 color: Some(cx.theme().status().hint),
10375 ..HighlightStyle::default()
10376 },
10377 suggestions_style: HighlightStyle {
10378 color: Some(cx.theme().status().predictive),
10379 ..HighlightStyle::default()
10380 },
10381 },
10382 )
10383 }
10384}
10385
10386impl ViewInputHandler for Editor {
10387 fn text_for_range(
10388 &mut self,
10389 range_utf16: Range<usize>,
10390 cx: &mut ViewContext<Self>,
10391 ) -> Option<String> {
10392 Some(
10393 self.buffer
10394 .read(cx)
10395 .read(cx)
10396 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10397 .collect(),
10398 )
10399 }
10400
10401 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10402 // Prevent the IME menu from appearing when holding down an alphabetic key
10403 // while input is disabled.
10404 if !self.input_enabled {
10405 return None;
10406 }
10407
10408 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10409 Some(range.start.0..range.end.0)
10410 }
10411
10412 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10413 let snapshot = self.buffer.read(cx).read(cx);
10414 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10415 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10416 }
10417
10418 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10419 self.clear_highlights::<InputComposition>(cx);
10420 self.ime_transaction.take();
10421 }
10422
10423 fn replace_text_in_range(
10424 &mut self,
10425 range_utf16: Option<Range<usize>>,
10426 text: &str,
10427 cx: &mut ViewContext<Self>,
10428 ) {
10429 if !self.input_enabled {
10430 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10431 return;
10432 }
10433
10434 self.transact(cx, |this, cx| {
10435 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10436 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10437 Some(this.selection_replacement_ranges(range_utf16, cx))
10438 } else {
10439 this.marked_text_ranges(cx)
10440 };
10441
10442 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10443 let newest_selection_id = this.selections.newest_anchor().id;
10444 this.selections
10445 .all::<OffsetUtf16>(cx)
10446 .iter()
10447 .zip(ranges_to_replace.iter())
10448 .find_map(|(selection, range)| {
10449 if selection.id == newest_selection_id {
10450 Some(
10451 (range.start.0 as isize - selection.head().0 as isize)
10452 ..(range.end.0 as isize - selection.head().0 as isize),
10453 )
10454 } else {
10455 None
10456 }
10457 })
10458 });
10459
10460 cx.emit(EditorEvent::InputHandled {
10461 utf16_range_to_replace: range_to_replace,
10462 text: text.into(),
10463 });
10464
10465 if let Some(new_selected_ranges) = new_selected_ranges {
10466 this.change_selections(None, cx, |selections| {
10467 selections.select_ranges(new_selected_ranges)
10468 });
10469 this.backspace(&Default::default(), cx);
10470 }
10471
10472 this.handle_input(text, cx);
10473 });
10474
10475 if let Some(transaction) = self.ime_transaction {
10476 self.buffer.update(cx, |buffer, cx| {
10477 buffer.group_until_transaction(transaction, cx);
10478 });
10479 }
10480
10481 self.unmark_text(cx);
10482 }
10483
10484 fn replace_and_mark_text_in_range(
10485 &mut self,
10486 range_utf16: Option<Range<usize>>,
10487 text: &str,
10488 new_selected_range_utf16: Option<Range<usize>>,
10489 cx: &mut ViewContext<Self>,
10490 ) {
10491 if !self.input_enabled {
10492 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10493 return;
10494 }
10495
10496 let transaction = self.transact(cx, |this, cx| {
10497 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10498 let snapshot = this.buffer.read(cx).read(cx);
10499 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10500 for marked_range in &mut marked_ranges {
10501 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10502 marked_range.start.0 += relative_range_utf16.start;
10503 marked_range.start =
10504 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10505 marked_range.end =
10506 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10507 }
10508 }
10509 Some(marked_ranges)
10510 } else if let Some(range_utf16) = range_utf16 {
10511 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10512 Some(this.selection_replacement_ranges(range_utf16, cx))
10513 } else {
10514 None
10515 };
10516
10517 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10518 let newest_selection_id = this.selections.newest_anchor().id;
10519 this.selections
10520 .all::<OffsetUtf16>(cx)
10521 .iter()
10522 .zip(ranges_to_replace.iter())
10523 .find_map(|(selection, range)| {
10524 if selection.id == newest_selection_id {
10525 Some(
10526 (range.start.0 as isize - selection.head().0 as isize)
10527 ..(range.end.0 as isize - selection.head().0 as isize),
10528 )
10529 } else {
10530 None
10531 }
10532 })
10533 });
10534
10535 cx.emit(EditorEvent::InputHandled {
10536 utf16_range_to_replace: range_to_replace,
10537 text: text.into(),
10538 });
10539
10540 if let Some(ranges) = ranges_to_replace {
10541 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10542 }
10543
10544 let marked_ranges = {
10545 let snapshot = this.buffer.read(cx).read(cx);
10546 this.selections
10547 .disjoint_anchors()
10548 .iter()
10549 .map(|selection| {
10550 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10551 })
10552 .collect::<Vec<_>>()
10553 };
10554
10555 if text.is_empty() {
10556 this.unmark_text(cx);
10557 } else {
10558 this.highlight_text::<InputComposition>(
10559 marked_ranges.clone(),
10560 HighlightStyle {
10561 underline: Some(UnderlineStyle {
10562 thickness: px(1.),
10563 color: None,
10564 wavy: false,
10565 }),
10566 ..Default::default()
10567 },
10568 cx,
10569 );
10570 }
10571
10572 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10573 let use_autoclose = this.use_autoclose;
10574 this.set_use_autoclose(false);
10575 this.handle_input(text, cx);
10576 this.set_use_autoclose(use_autoclose);
10577
10578 if let Some(new_selected_range) = new_selected_range_utf16 {
10579 let snapshot = this.buffer.read(cx).read(cx);
10580 let new_selected_ranges = marked_ranges
10581 .into_iter()
10582 .map(|marked_range| {
10583 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10584 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10585 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10586 snapshot.clip_offset_utf16(new_start, Bias::Left)
10587 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10588 })
10589 .collect::<Vec<_>>();
10590
10591 drop(snapshot);
10592 this.change_selections(None, cx, |selections| {
10593 selections.select_ranges(new_selected_ranges)
10594 });
10595 }
10596 });
10597
10598 self.ime_transaction = self.ime_transaction.or(transaction);
10599 if let Some(transaction) = self.ime_transaction {
10600 self.buffer.update(cx, |buffer, cx| {
10601 buffer.group_until_transaction(transaction, cx);
10602 });
10603 }
10604
10605 if self.text_highlights::<InputComposition>(cx).is_none() {
10606 self.ime_transaction.take();
10607 }
10608 }
10609
10610 fn bounds_for_range(
10611 &mut self,
10612 range_utf16: Range<usize>,
10613 element_bounds: gpui::Bounds<Pixels>,
10614 cx: &mut ViewContext<Self>,
10615 ) -> Option<gpui::Bounds<Pixels>> {
10616 let text_layout_details = self.text_layout_details(cx);
10617 let style = &text_layout_details.editor_style;
10618 let font_id = cx.text_system().resolve_font(&style.text.font());
10619 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10620 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10621 let em_width = cx
10622 .text_system()
10623 .typographic_bounds(font_id, font_size, 'm')
10624 .unwrap()
10625 .size
10626 .width;
10627
10628 let snapshot = self.snapshot(cx);
10629 let scroll_position = snapshot.scroll_position();
10630 let scroll_left = scroll_position.x * em_width;
10631
10632 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10633 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10634 + self.gutter_width;
10635 let y = line_height * (start.row() as f32 - scroll_position.y);
10636
10637 Some(Bounds {
10638 origin: element_bounds.origin + point(x, y),
10639 size: size(em_width, line_height),
10640 })
10641 }
10642}
10643
10644trait SelectionExt {
10645 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10646 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10647 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10648 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10649 -> Range<u32>;
10650}
10651
10652impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10653 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10654 let start = self.start.to_point(buffer);
10655 let end = self.end.to_point(buffer);
10656 if self.reversed {
10657 end..start
10658 } else {
10659 start..end
10660 }
10661 }
10662
10663 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10664 let start = self.start.to_offset(buffer);
10665 let end = self.end.to_offset(buffer);
10666 if self.reversed {
10667 end..start
10668 } else {
10669 start..end
10670 }
10671 }
10672
10673 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10674 let start = self
10675 .start
10676 .to_point(&map.buffer_snapshot)
10677 .to_display_point(map);
10678 let end = self
10679 .end
10680 .to_point(&map.buffer_snapshot)
10681 .to_display_point(map);
10682 if self.reversed {
10683 end..start
10684 } else {
10685 start..end
10686 }
10687 }
10688
10689 fn spanned_rows(
10690 &self,
10691 include_end_if_at_line_start: bool,
10692 map: &DisplaySnapshot,
10693 ) -> Range<u32> {
10694 let start = self.start.to_point(&map.buffer_snapshot);
10695 let mut end = self.end.to_point(&map.buffer_snapshot);
10696 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10697 end.row -= 1;
10698 }
10699
10700 let buffer_start = map.prev_line_boundary(start).0;
10701 let buffer_end = map.next_line_boundary(end).0;
10702 buffer_start.row..buffer_end.row + 1
10703 }
10704}
10705
10706impl<T: InvalidationRegion> InvalidationStack<T> {
10707 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10708 where
10709 S: Clone + ToOffset,
10710 {
10711 while let Some(region) = self.last() {
10712 let all_selections_inside_invalidation_ranges =
10713 if selections.len() == region.ranges().len() {
10714 selections
10715 .iter()
10716 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10717 .all(|(selection, invalidation_range)| {
10718 let head = selection.head().to_offset(buffer);
10719 invalidation_range.start <= head && invalidation_range.end >= head
10720 })
10721 } else {
10722 false
10723 };
10724
10725 if all_selections_inside_invalidation_ranges {
10726 break;
10727 } else {
10728 self.pop();
10729 }
10730 }
10731 }
10732}
10733
10734impl<T> Default for InvalidationStack<T> {
10735 fn default() -> Self {
10736 Self(Default::default())
10737 }
10738}
10739
10740impl<T> Deref for InvalidationStack<T> {
10741 type Target = Vec<T>;
10742
10743 fn deref(&self) -> &Self::Target {
10744 &self.0
10745 }
10746}
10747
10748impl<T> DerefMut for InvalidationStack<T> {
10749 fn deref_mut(&mut self) -> &mut Self::Target {
10750 &mut self.0
10751 }
10752}
10753
10754impl InvalidationRegion for SnippetState {
10755 fn ranges(&self) -> &[Range<Anchor>] {
10756 &self.ranges[self.active_index]
10757 }
10758}
10759
10760pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10761 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10762
10763 Box::new(move |cx: &mut BlockContext| {
10764 let group_id: SharedString = cx.block_id.to_string().into();
10765
10766 let mut text_style = cx.text_style().clone();
10767 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10768 let theme_settings = ThemeSettings::get_global(cx);
10769 text_style.font_family = theme_settings.buffer_font.family.clone();
10770 text_style.font_style = theme_settings.buffer_font.style;
10771 text_style.font_features = theme_settings.buffer_font.features;
10772 text_style.font_weight = theme_settings.buffer_font.weight;
10773
10774 let multi_line_diagnostic = diagnostic.message.contains('\n');
10775
10776 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
10777 if multi_line_diagnostic {
10778 v_flex()
10779 } else {
10780 h_flex()
10781 }
10782 .children(diagnostic.is_primary.then(|| {
10783 IconButton::new(("close-block", block_id), IconName::XCircle)
10784 .icon_color(Color::Muted)
10785 .size(ButtonSize::Compact)
10786 .style(ButtonStyle::Transparent)
10787 .visible_on_hover(group_id.clone())
10788 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
10789 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
10790 }))
10791 .child(
10792 IconButton::new(("copy-block", block_id), IconName::Copy)
10793 .icon_color(Color::Muted)
10794 .size(ButtonSize::Compact)
10795 .style(ButtonStyle::Transparent)
10796 .visible_on_hover(group_id.clone())
10797 .on_click({
10798 let message = diagnostic.message.clone();
10799 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10800 })
10801 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10802 )
10803 };
10804
10805 let icon_size = buttons(&diagnostic, cx.block_id)
10806 .into_any_element()
10807 .layout_as_root(AvailableSpace::min_size(), cx);
10808
10809 h_flex()
10810 .id(cx.block_id)
10811 .group(group_id.clone())
10812 .relative()
10813 .size_full()
10814 .pl(cx.gutter_dimensions.width)
10815 .w(cx.max_width + cx.gutter_dimensions.width)
10816 .child(
10817 div()
10818 .flex()
10819 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
10820 .flex_shrink(),
10821 )
10822 .child(buttons(&diagnostic, cx.block_id))
10823 .child(div().flex().flex_shrink_0().child(
10824 StyledText::new(text_without_backticks.clone()).with_highlights(
10825 &text_style,
10826 code_ranges.iter().map(|range| {
10827 (
10828 range.clone(),
10829 HighlightStyle {
10830 font_weight: Some(FontWeight::BOLD),
10831 ..Default::default()
10832 },
10833 )
10834 }),
10835 ),
10836 ))
10837 .into_any_element()
10838 })
10839}
10840
10841pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10842 let mut text_without_backticks = String::new();
10843 let mut code_ranges = Vec::new();
10844
10845 if let Some(source) = &diagnostic.source {
10846 text_without_backticks.push_str(&source);
10847 code_ranges.push(0..source.len());
10848 text_without_backticks.push_str(": ");
10849 }
10850
10851 let mut prev_offset = 0;
10852 let mut in_code_block = false;
10853 for (ix, _) in diagnostic
10854 .message
10855 .match_indices('`')
10856 .chain([(diagnostic.message.len(), "")])
10857 {
10858 let prev_len = text_without_backticks.len();
10859 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10860 prev_offset = ix + 1;
10861 if in_code_block {
10862 code_ranges.push(prev_len..text_without_backticks.len());
10863 in_code_block = false;
10864 } else {
10865 in_code_block = true;
10866 }
10867 }
10868
10869 (text_without_backticks.into(), code_ranges)
10870}
10871
10872fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10873 match (severity, valid) {
10874 (DiagnosticSeverity::ERROR, true) => colors.error,
10875 (DiagnosticSeverity::ERROR, false) => colors.error,
10876 (DiagnosticSeverity::WARNING, true) => colors.warning,
10877 (DiagnosticSeverity::WARNING, false) => colors.warning,
10878 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10879 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10880 (DiagnosticSeverity::HINT, true) => colors.info,
10881 (DiagnosticSeverity::HINT, false) => colors.info,
10882 _ => colors.ignored,
10883 }
10884}
10885
10886pub fn styled_runs_for_code_label<'a>(
10887 label: &'a CodeLabel,
10888 syntax_theme: &'a theme::SyntaxTheme,
10889) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10890 let fade_out = HighlightStyle {
10891 fade_out: Some(0.35),
10892 ..Default::default()
10893 };
10894
10895 let mut prev_end = label.filter_range.end;
10896 label
10897 .runs
10898 .iter()
10899 .enumerate()
10900 .flat_map(move |(ix, (range, highlight_id))| {
10901 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10902 style
10903 } else {
10904 return Default::default();
10905 };
10906 let mut muted_style = style;
10907 muted_style.highlight(fade_out);
10908
10909 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10910 if range.start >= label.filter_range.end {
10911 if range.start > prev_end {
10912 runs.push((prev_end..range.start, fade_out));
10913 }
10914 runs.push((range.clone(), muted_style));
10915 } else if range.end <= label.filter_range.end {
10916 runs.push((range.clone(), style));
10917 } else {
10918 runs.push((range.start..label.filter_range.end, style));
10919 runs.push((label.filter_range.end..range.end, muted_style));
10920 }
10921 prev_end = cmp::max(prev_end, range.end);
10922
10923 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10924 runs.push((prev_end..label.text.len(), fade_out));
10925 }
10926
10927 runs
10928 })
10929}
10930
10931pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10932 let mut prev_index = 0;
10933 let mut prev_codepoint: Option<char> = None;
10934 text.char_indices()
10935 .chain([(text.len(), '\0')])
10936 .filter_map(move |(index, codepoint)| {
10937 let prev_codepoint = prev_codepoint.replace(codepoint)?;
10938 let is_boundary = index == text.len()
10939 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
10940 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
10941 if is_boundary {
10942 let chunk = &text[prev_index..index];
10943 prev_index = index;
10944 Some(chunk)
10945 } else {
10946 None
10947 }
10948 })
10949}
10950
10951trait RangeToAnchorExt {
10952 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10953}
10954
10955impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10956 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10957 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10958 }
10959}