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 hunk_diff;
22mod inlay_hint_cache;
23
24mod debounced_delay;
25mod git;
26mod highlight_matching_bracket;
27mod hover_links;
28mod hover_popover;
29mod inline_completion_provider;
30pub mod items;
31mod mouse_context_menu;
32pub mod movement;
33mod persistence;
34mod rust_analyzer_ext;
35pub mod scroll;
36mod selections_collection;
37pub mod tasks;
38
39#[cfg(test)]
40mod editor_tests;
41#[cfg(any(test, feature = "test-support"))]
42pub mod test;
43use ::git::diff::{DiffHunk, DiffHunkStatus};
44use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
45pub(crate) use actions::*;
46use aho_corasick::AhoCorasick;
47use anyhow::{anyhow, Context as _, Result};
48use blink_manager::BlinkManager;
49use client::{Collaborator, ParticipantIndex};
50use clock::ReplicaId;
51use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
52use convert_case::{Case, Casing};
53use debounced_delay::DebouncedDelay;
54pub use display_map::DisplayPoint;
55use display_map::*;
56pub use editor_settings::EditorSettings;
57use element::LineWithInvisibles;
58pub use element::{
59 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
60};
61use futures::FutureExt;
62use fuzzy::{StringMatch, StringMatchCandidate};
63use git::blame::GitBlame;
64use git::diff_hunk_to_display;
65use gpui::{
66 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
67 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
68 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
69 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
70 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
71 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
72 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
73};
74use highlight_matching_bracket::refresh_matching_bracket_highlights;
75use hover_popover::{hide_hover, HoverState};
76use hunk_diff::ExpandedHunks;
77pub(crate) use hunk_diff::HunkToExpand;
78use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
79pub use inline_completion_provider::*;
80pub use items::MAX_TAB_TITLE_LEN;
81use itertools::Itertools;
82use language::{
83 char_kind,
84 language_settings::{self, all_language_settings, InlayHintSettings},
85 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
86 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
87 Point, Selection, SelectionGoal, TransactionId,
88};
89use language::{BufferRow, Runnable, RunnableRange};
90use task::{ResolvedTask, TaskTemplate, TaskVariables};
91
92use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
93use lsp::{DiagnosticSeverity, LanguageServerId};
94use mouse_context_menu::MouseContextMenu;
95use movement::TextLayoutDetails;
96pub use multi_buffer::{
97 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
98 ToPoint,
99};
100use multi_buffer::{MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
101use ordered_float::OrderedFloat;
102use parking_lot::{Mutex, RwLock};
103use project::project_settings::{GitGutterSetting, ProjectSettings};
104use project::{
105 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
106 ProjectTransaction, TaskSourceKind, WorktreeId,
107};
108use rand::prelude::*;
109use rpc::{proto::*, ErrorExt};
110use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
111use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
112use serde::{Deserialize, Serialize};
113use settings::{Settings, SettingsStore};
114use smallvec::SmallVec;
115use snippet::Snippet;
116use std::ops::Not as _;
117use std::{
118 any::TypeId,
119 borrow::Cow,
120 cmp::{self, Ordering, Reverse},
121 mem,
122 num::NonZeroU32,
123 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
124 path::Path,
125 sync::Arc,
126 time::{Duration, Instant},
127};
128pub use sum_tree::Bias;
129use sum_tree::TreeMap;
130use text::{BufferId, OffsetUtf16, Rope};
131use theme::{
132 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
133 ThemeColors, ThemeSettings,
134};
135use ui::{
136 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
137 Tooltip,
138};
139use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
140use workspace::item::{ItemHandle, PreviewTabsSettings};
141use workspace::notifications::{DetachAndPromptErr, NotificationId};
142use workspace::{
143 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
144};
145use workspace::{OpenInTerminal, OpenTerminal, Toast};
146
147use crate::hover_links::find_url;
148
149pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
150const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
151const MAX_LINE_LEN: usize = 1024;
152const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
153const MAX_SELECTION_HISTORY_LEN: usize = 1024;
154pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
155#[doc(hidden)]
156pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
157#[doc(hidden)]
158pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
159
160pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
161
162pub fn render_parsed_markdown(
163 element_id: impl Into<ElementId>,
164 parsed: &language::ParsedMarkdown,
165 editor_style: &EditorStyle,
166 workspace: Option<WeakView<Workspace>>,
167 cx: &mut WindowContext,
168) -> InteractiveText {
169 let code_span_background_color = cx
170 .theme()
171 .colors()
172 .editor_document_highlight_read_background;
173
174 let highlights = gpui::combine_highlights(
175 parsed.highlights.iter().filter_map(|(range, highlight)| {
176 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
177 Some((range.clone(), highlight))
178 }),
179 parsed
180 .regions
181 .iter()
182 .zip(&parsed.region_ranges)
183 .filter_map(|(region, range)| {
184 if region.code {
185 Some((
186 range.clone(),
187 HighlightStyle {
188 background_color: Some(code_span_background_color),
189 ..Default::default()
190 },
191 ))
192 } else {
193 None
194 }
195 }),
196 );
197
198 let mut links = Vec::new();
199 let mut link_ranges = Vec::new();
200 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
201 if let Some(link) = region.link.clone() {
202 links.push(link);
203 link_ranges.push(range.clone());
204 }
205 }
206
207 InteractiveText::new(
208 element_id,
209 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
210 )
211 .on_click(link_ranges, move |clicked_range_ix, cx| {
212 match &links[clicked_range_ix] {
213 markdown::Link::Web { url } => cx.open_url(url),
214 markdown::Link::Path { path } => {
215 if let Some(workspace) = &workspace {
216 _ = workspace.update(cx, |workspace, cx| {
217 workspace.open_abs_path(path.clone(), false, cx).detach();
218 });
219 }
220 }
221 }
222 })
223}
224
225#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
226pub(crate) enum InlayId {
227 Suggestion(usize),
228 Hint(usize),
229}
230
231impl InlayId {
232 fn id(&self) -> usize {
233 match self {
234 Self::Suggestion(id) => *id,
235 Self::Hint(id) => *id,
236 }
237 }
238}
239
240enum DiffRowHighlight {}
241enum DocumentHighlightRead {}
242enum DocumentHighlightWrite {}
243enum InputComposition {}
244
245#[derive(Copy, Clone, PartialEq, Eq)]
246pub enum Direction {
247 Prev,
248 Next,
249}
250
251pub fn init_settings(cx: &mut AppContext) {
252 EditorSettings::register(cx);
253}
254
255pub fn init(cx: &mut AppContext) {
256 init_settings(cx);
257
258 workspace::register_project_item::<Editor>(cx);
259 workspace::register_followable_item::<Editor>(cx);
260 workspace::register_deserializable_item::<Editor>(cx);
261 cx.observe_new_views(
262 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
263 workspace.register_action(Editor::new_file);
264 workspace.register_action(Editor::new_file_in_direction);
265 },
266 )
267 .detach();
268
269 cx.on_action(move |_: &workspace::NewFile, cx| {
270 let app_state = workspace::AppState::global(cx);
271 if let Some(app_state) = app_state.upgrade() {
272 workspace::open_new(app_state, cx, |workspace, cx| {
273 Editor::new_file(workspace, &Default::default(), cx)
274 })
275 .detach();
276 }
277 });
278 cx.on_action(move |_: &workspace::NewWindow, cx| {
279 let app_state = workspace::AppState::global(cx);
280 if let Some(app_state) = app_state.upgrade() {
281 workspace::open_new(app_state, cx, |workspace, cx| {
282 Editor::new_file(workspace, &Default::default(), cx)
283 })
284 .detach();
285 }
286 });
287}
288
289pub struct SearchWithinRange;
290
291trait InvalidationRegion {
292 fn ranges(&self) -> &[Range<Anchor>];
293}
294
295#[derive(Clone, Debug, PartialEq)]
296pub enum SelectPhase {
297 Begin {
298 position: DisplayPoint,
299 add: bool,
300 click_count: usize,
301 },
302 BeginColumnar {
303 position: DisplayPoint,
304 goal_column: u32,
305 },
306 Extend {
307 position: DisplayPoint,
308 click_count: usize,
309 },
310 Update {
311 position: DisplayPoint,
312 goal_column: u32,
313 scroll_delta: gpui::Point<f32>,
314 },
315 End,
316}
317
318#[derive(Clone, Debug)]
319pub enum SelectMode {
320 Character,
321 Word(Range<Anchor>),
322 Line(Range<Anchor>),
323 All,
324}
325
326#[derive(Copy, Clone, PartialEq, Eq, Debug)]
327pub enum EditorMode {
328 SingleLine,
329 AutoHeight { max_lines: usize },
330 Full,
331}
332
333#[derive(Clone, Debug)]
334pub enum SoftWrap {
335 None,
336 PreferLine,
337 EditorWidth,
338 Column(u32),
339}
340
341#[derive(Clone)]
342pub struct EditorStyle {
343 pub background: Hsla,
344 pub local_player: PlayerColor,
345 pub text: TextStyle,
346 pub scrollbar_width: Pixels,
347 pub syntax: Arc<SyntaxTheme>,
348 pub status: StatusColors,
349 pub inlay_hints_style: HighlightStyle,
350 pub suggestions_style: HighlightStyle,
351}
352
353impl Default for EditorStyle {
354 fn default() -> Self {
355 Self {
356 background: Hsla::default(),
357 local_player: PlayerColor::default(),
358 text: TextStyle::default(),
359 scrollbar_width: Pixels::default(),
360 syntax: Default::default(),
361 // HACK: Status colors don't have a real default.
362 // We should look into removing the status colors from the editor
363 // style and retrieve them directly from the theme.
364 status: StatusColors::dark(),
365 inlay_hints_style: HighlightStyle::default(),
366 suggestions_style: HighlightStyle::default(),
367 }
368 }
369}
370
371type CompletionId = usize;
372
373// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
374// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
375
376type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
377
378struct ScrollbarMarkerState {
379 scrollbar_size: Size<Pixels>,
380 dirty: bool,
381 markers: Arc<[PaintQuad]>,
382 pending_refresh: Option<Task<Result<()>>>,
383}
384
385impl ScrollbarMarkerState {
386 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
387 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
388 }
389}
390
391impl Default for ScrollbarMarkerState {
392 fn default() -> Self {
393 Self {
394 scrollbar_size: Size::default(),
395 dirty: false,
396 markers: Arc::from([]),
397 pending_refresh: None,
398 }
399 }
400}
401
402#[derive(Clone, Debug)]
403struct RunnableTasks {
404 templates: Vec<(TaskSourceKind, TaskTemplate)>,
405 // We need the column at which the task context evaluation should take place.
406 column: u32,
407 extra_variables: HashMap<String, String>,
408}
409
410#[derive(Clone)]
411struct ResolvedTasks {
412 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
413 position: Anchor,
414}
415
416/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
417///
418/// See the [module level documentation](self) for more information.
419pub struct Editor {
420 focus_handle: FocusHandle,
421 /// The text buffer being edited
422 buffer: Model<MultiBuffer>,
423 /// Map of how text in the buffer should be displayed.
424 /// Handles soft wraps, folds, fake inlay text insertions, etc.
425 pub display_map: Model<DisplayMap>,
426 pub selections: SelectionsCollection,
427 pub scroll_manager: ScrollManager,
428 columnar_selection_tail: Option<Anchor>,
429 add_selections_state: Option<AddSelectionsState>,
430 select_next_state: Option<SelectNextState>,
431 select_prev_state: Option<SelectNextState>,
432 selection_history: SelectionHistory,
433 autoclose_regions: Vec<AutocloseRegion>,
434 snippet_stack: InvalidationStack<SnippetState>,
435 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
436 ime_transaction: Option<TransactionId>,
437 active_diagnostics: Option<ActiveDiagnosticGroup>,
438 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
439 project: Option<Model<Project>>,
440 completion_provider: Option<Box<dyn CompletionProvider>>,
441 collaboration_hub: Option<Box<dyn CollaborationHub>>,
442 blink_manager: Model<BlinkManager>,
443 show_cursor_names: bool,
444 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
445 pub show_local_selections: bool,
446 mode: EditorMode,
447 show_breadcrumbs: bool,
448 show_gutter: bool,
449 show_wrap_guides: Option<bool>,
450 placeholder_text: Option<Arc<str>>,
451 highlight_order: usize,
452 highlighted_rows: HashMap<TypeId, Vec<(usize, RangeInclusive<Anchor>, Option<Hsla>)>>,
453 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
454 scrollbar_marker_state: ScrollbarMarkerState,
455 nav_history: Option<ItemNavHistory>,
456 context_menu: RwLock<Option<ContextMenu>>,
457 mouse_context_menu: Option<MouseContextMenu>,
458 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
459 find_all_references_task_sources: Vec<Anchor>,
460 next_completion_id: CompletionId,
461 completion_documentation_pre_resolve_debounce: DebouncedDelay,
462 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
463 code_actions_task: Option<Task<()>>,
464 document_highlights_task: Option<Task<()>>,
465 pending_rename: Option<RenameState>,
466 searchable: bool,
467 cursor_shape: CursorShape,
468 collapse_matches: bool,
469 autoindent_mode: Option<AutoindentMode>,
470 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
471 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
472 input_enabled: bool,
473 use_modal_editing: bool,
474 read_only: bool,
475 leader_peer_id: Option<PeerId>,
476 remote_id: Option<ViewId>,
477 hover_state: HoverState,
478 gutter_hovered: bool,
479 hovered_link_state: Option<HoveredLinkState>,
480 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
481 active_inline_completion: Option<Inlay>,
482 show_inline_completions: bool,
483 inlay_hint_cache: InlayHintCache,
484 expanded_hunks: ExpandedHunks,
485 next_inlay_id: usize,
486 _subscriptions: Vec<Subscription>,
487 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
488 gutter_dimensions: GutterDimensions,
489 pub vim_replace_map: HashMap<Range<usize>, String>,
490 style: Option<EditorStyle>,
491 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
492 use_autoclose: bool,
493 auto_replace_emoji_shortcode: bool,
494 show_git_blame_gutter: bool,
495 show_git_blame_inline: bool,
496 show_git_blame_inline_delay_task: Option<Task<()>>,
497 git_blame_inline_enabled: bool,
498 blame: Option<Model<GitBlame>>,
499 blame_subscription: Option<Subscription>,
500 custom_context_menu: Option<
501 Box<
502 dyn 'static
503 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
504 >,
505 >,
506 last_bounds: Option<Bounds<Pixels>>,
507 expect_bounds_change: Option<Bounds<Pixels>>,
508 tasks: HashMap<(BufferId, BufferRow), (usize, RunnableTasks)>,
509 tasks_update_task: Option<Task<()>>,
510}
511
512#[derive(Clone)]
513pub struct EditorSnapshot {
514 pub mode: EditorMode,
515 show_gutter: bool,
516 render_git_blame_gutter: bool,
517 pub display_snapshot: DisplaySnapshot,
518 pub placeholder_text: Option<Arc<str>>,
519 is_focused: bool,
520 scroll_anchor: ScrollAnchor,
521 ongoing_scroll: OngoingScroll,
522}
523
524const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
525
526#[derive(Debug, Clone, Copy)]
527pub struct GutterDimensions {
528 pub left_padding: Pixels,
529 pub right_padding: Pixels,
530 pub width: Pixels,
531 pub margin: Pixels,
532 pub git_blame_entries_width: Option<Pixels>,
533}
534
535impl Default for GutterDimensions {
536 fn default() -> Self {
537 Self {
538 left_padding: Pixels::ZERO,
539 right_padding: Pixels::ZERO,
540 width: Pixels::ZERO,
541 margin: Pixels::ZERO,
542 git_blame_entries_width: None,
543 }
544 }
545}
546
547#[derive(Debug)]
548pub struct RemoteSelection {
549 pub replica_id: ReplicaId,
550 pub selection: Selection<Anchor>,
551 pub cursor_shape: CursorShape,
552 pub peer_id: PeerId,
553 pub line_mode: bool,
554 pub participant_index: Option<ParticipantIndex>,
555 pub user_name: Option<SharedString>,
556}
557
558#[derive(Clone, Debug)]
559struct SelectionHistoryEntry {
560 selections: Arc<[Selection<Anchor>]>,
561 select_next_state: Option<SelectNextState>,
562 select_prev_state: Option<SelectNextState>,
563 add_selections_state: Option<AddSelectionsState>,
564}
565
566enum SelectionHistoryMode {
567 Normal,
568 Undoing,
569 Redoing,
570}
571
572#[derive(Clone, PartialEq, Eq, Hash)]
573struct HoveredCursor {
574 replica_id: u16,
575 selection_id: usize,
576}
577
578impl Default for SelectionHistoryMode {
579 fn default() -> Self {
580 Self::Normal
581 }
582}
583
584#[derive(Default)]
585struct SelectionHistory {
586 #[allow(clippy::type_complexity)]
587 selections_by_transaction:
588 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
589 mode: SelectionHistoryMode,
590 undo_stack: VecDeque<SelectionHistoryEntry>,
591 redo_stack: VecDeque<SelectionHistoryEntry>,
592}
593
594impl SelectionHistory {
595 fn insert_transaction(
596 &mut self,
597 transaction_id: TransactionId,
598 selections: Arc<[Selection<Anchor>]>,
599 ) {
600 self.selections_by_transaction
601 .insert(transaction_id, (selections, None));
602 }
603
604 #[allow(clippy::type_complexity)]
605 fn transaction(
606 &self,
607 transaction_id: TransactionId,
608 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
609 self.selections_by_transaction.get(&transaction_id)
610 }
611
612 #[allow(clippy::type_complexity)]
613 fn transaction_mut(
614 &mut self,
615 transaction_id: TransactionId,
616 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
617 self.selections_by_transaction.get_mut(&transaction_id)
618 }
619
620 fn push(&mut self, entry: SelectionHistoryEntry) {
621 if !entry.selections.is_empty() {
622 match self.mode {
623 SelectionHistoryMode::Normal => {
624 self.push_undo(entry);
625 self.redo_stack.clear();
626 }
627 SelectionHistoryMode::Undoing => self.push_redo(entry),
628 SelectionHistoryMode::Redoing => self.push_undo(entry),
629 }
630 }
631 }
632
633 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
634 if self
635 .undo_stack
636 .back()
637 .map_or(true, |e| e.selections != entry.selections)
638 {
639 self.undo_stack.push_back(entry);
640 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
641 self.undo_stack.pop_front();
642 }
643 }
644 }
645
646 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
647 if self
648 .redo_stack
649 .back()
650 .map_or(true, |e| e.selections != entry.selections)
651 {
652 self.redo_stack.push_back(entry);
653 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
654 self.redo_stack.pop_front();
655 }
656 }
657 }
658}
659
660#[derive(Clone, Debug)]
661struct AddSelectionsState {
662 above: bool,
663 stack: Vec<usize>,
664}
665
666#[derive(Clone)]
667struct SelectNextState {
668 query: AhoCorasick,
669 wordwise: bool,
670 done: bool,
671}
672
673impl std::fmt::Debug for SelectNextState {
674 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
675 f.debug_struct(std::any::type_name::<Self>())
676 .field("wordwise", &self.wordwise)
677 .field("done", &self.done)
678 .finish()
679 }
680}
681
682#[derive(Debug)]
683struct AutocloseRegion {
684 selection_id: usize,
685 range: Range<Anchor>,
686 pair: BracketPair,
687}
688
689#[derive(Debug)]
690struct SnippetState {
691 ranges: Vec<Vec<Range<Anchor>>>,
692 active_index: usize,
693}
694
695#[doc(hidden)]
696pub struct RenameState {
697 pub range: Range<Anchor>,
698 pub old_name: Arc<str>,
699 pub editor: View<Editor>,
700 block_id: BlockId,
701}
702
703struct InvalidationStack<T>(Vec<T>);
704
705struct RegisteredInlineCompletionProvider {
706 provider: Arc<dyn InlineCompletionProviderHandle>,
707 _subscription: Subscription,
708}
709
710enum ContextMenu {
711 Completions(CompletionsMenu),
712 CodeActions(CodeActionsMenu),
713}
714
715impl ContextMenu {
716 fn select_first(
717 &mut self,
718 project: Option<&Model<Project>>,
719 cx: &mut ViewContext<Editor>,
720 ) -> bool {
721 if self.visible() {
722 match self {
723 ContextMenu::Completions(menu) => menu.select_first(project, cx),
724 ContextMenu::CodeActions(menu) => menu.select_first(cx),
725 }
726 true
727 } else {
728 false
729 }
730 }
731
732 fn select_prev(
733 &mut self,
734 project: Option<&Model<Project>>,
735 cx: &mut ViewContext<Editor>,
736 ) -> bool {
737 if self.visible() {
738 match self {
739 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
740 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
741 }
742 true
743 } else {
744 false
745 }
746 }
747
748 fn select_next(
749 &mut self,
750 project: Option<&Model<Project>>,
751 cx: &mut ViewContext<Editor>,
752 ) -> bool {
753 if self.visible() {
754 match self {
755 ContextMenu::Completions(menu) => menu.select_next(project, cx),
756 ContextMenu::CodeActions(menu) => menu.select_next(cx),
757 }
758 true
759 } else {
760 false
761 }
762 }
763
764 fn select_last(
765 &mut self,
766 project: Option<&Model<Project>>,
767 cx: &mut ViewContext<Editor>,
768 ) -> bool {
769 if self.visible() {
770 match self {
771 ContextMenu::Completions(menu) => menu.select_last(project, cx),
772 ContextMenu::CodeActions(menu) => menu.select_last(cx),
773 }
774 true
775 } else {
776 false
777 }
778 }
779
780 fn visible(&self) -> bool {
781 match self {
782 ContextMenu::Completions(menu) => menu.visible(),
783 ContextMenu::CodeActions(menu) => menu.visible(),
784 }
785 }
786
787 fn render(
788 &self,
789 cursor_position: DisplayPoint,
790 style: &EditorStyle,
791 max_height: Pixels,
792 workspace: Option<WeakView<Workspace>>,
793 cx: &mut ViewContext<Editor>,
794 ) -> (ContextMenuOrigin, AnyElement) {
795 match self {
796 ContextMenu::Completions(menu) => (
797 ContextMenuOrigin::EditorPoint(cursor_position),
798 menu.render(style, max_height, workspace, cx),
799 ),
800 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
801 }
802 }
803}
804
805enum ContextMenuOrigin {
806 EditorPoint(DisplayPoint),
807 GutterIndicator(DisplayRow),
808}
809
810#[derive(Clone)]
811struct CompletionsMenu {
812 id: CompletionId,
813 initial_position: Anchor,
814 buffer: Model<Buffer>,
815 completions: Arc<RwLock<Box<[Completion]>>>,
816 match_candidates: Arc<[StringMatchCandidate]>,
817 matches: Arc<[StringMatch]>,
818 selected_item: usize,
819 scroll_handle: UniformListScrollHandle,
820 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
821}
822
823impl CompletionsMenu {
824 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
825 self.selected_item = 0;
826 self.scroll_handle.scroll_to_item(self.selected_item);
827 self.attempt_resolve_selected_completion_documentation(project, cx);
828 cx.notify();
829 }
830
831 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
832 if self.selected_item > 0 {
833 self.selected_item -= 1;
834 } else {
835 self.selected_item = self.matches.len() - 1;
836 }
837 self.scroll_handle.scroll_to_item(self.selected_item);
838 self.attempt_resolve_selected_completion_documentation(project, cx);
839 cx.notify();
840 }
841
842 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
843 if self.selected_item + 1 < self.matches.len() {
844 self.selected_item += 1;
845 } else {
846 self.selected_item = 0;
847 }
848 self.scroll_handle.scroll_to_item(self.selected_item);
849 self.attempt_resolve_selected_completion_documentation(project, cx);
850 cx.notify();
851 }
852
853 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
854 self.selected_item = self.matches.len() - 1;
855 self.scroll_handle.scroll_to_item(self.selected_item);
856 self.attempt_resolve_selected_completion_documentation(project, cx);
857 cx.notify();
858 }
859
860 fn pre_resolve_completion_documentation(
861 buffer: Model<Buffer>,
862 completions: Arc<RwLock<Box<[Completion]>>>,
863 matches: Arc<[StringMatch]>,
864 editor: &Editor,
865 cx: &mut ViewContext<Editor>,
866 ) -> Task<()> {
867 let settings = EditorSettings::get_global(cx);
868 if !settings.show_completion_documentation {
869 return Task::ready(());
870 }
871
872 let Some(provider) = editor.completion_provider.as_ref() else {
873 return Task::ready(());
874 };
875
876 let resolve_task = provider.resolve_completions(
877 buffer,
878 matches.iter().map(|m| m.candidate_id).collect(),
879 completions.clone(),
880 cx,
881 );
882
883 return cx.spawn(move |this, mut cx| async move {
884 if let Some(true) = resolve_task.await.log_err() {
885 this.update(&mut cx, |_, cx| cx.notify()).ok();
886 }
887 });
888 }
889
890 fn attempt_resolve_selected_completion_documentation(
891 &mut self,
892 project: Option<&Model<Project>>,
893 cx: &mut ViewContext<Editor>,
894 ) {
895 let settings = EditorSettings::get_global(cx);
896 if !settings.show_completion_documentation {
897 return;
898 }
899
900 let completion_index = self.matches[self.selected_item].candidate_id;
901 let Some(project) = project else {
902 return;
903 };
904
905 let resolve_task = project.update(cx, |project, cx| {
906 project.resolve_completions(
907 self.buffer.clone(),
908 vec![completion_index],
909 self.completions.clone(),
910 cx,
911 )
912 });
913
914 let delay_ms =
915 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
916 let delay = Duration::from_millis(delay_ms);
917
918 self.selected_completion_documentation_resolve_debounce
919 .lock()
920 .fire_new(delay, cx, |_, cx| {
921 cx.spawn(move |this, mut cx| async move {
922 if let Some(true) = resolve_task.await.log_err() {
923 this.update(&mut cx, |_, cx| cx.notify()).ok();
924 }
925 })
926 });
927 }
928
929 fn visible(&self) -> bool {
930 !self.matches.is_empty()
931 }
932
933 fn render(
934 &self,
935 style: &EditorStyle,
936 max_height: Pixels,
937 workspace: Option<WeakView<Workspace>>,
938 cx: &mut ViewContext<Editor>,
939 ) -> AnyElement {
940 let settings = EditorSettings::get_global(cx);
941 let show_completion_documentation = settings.show_completion_documentation;
942
943 let widest_completion_ix = self
944 .matches
945 .iter()
946 .enumerate()
947 .max_by_key(|(_, mat)| {
948 let completions = self.completions.read();
949 let completion = &completions[mat.candidate_id];
950 let documentation = &completion.documentation;
951
952 let mut len = completion.label.text.chars().count();
953 if let Some(Documentation::SingleLine(text)) = documentation {
954 if show_completion_documentation {
955 len += text.chars().count();
956 }
957 }
958
959 len
960 })
961 .map(|(ix, _)| ix);
962
963 let completions = self.completions.clone();
964 let matches = self.matches.clone();
965 let selected_item = self.selected_item;
966 let style = style.clone();
967
968 let multiline_docs = if show_completion_documentation {
969 let mat = &self.matches[selected_item];
970 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
971 Some(Documentation::MultiLinePlainText(text)) => {
972 Some(div().child(SharedString::from(text.clone())))
973 }
974 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
975 Some(div().child(render_parsed_markdown(
976 "completions_markdown",
977 parsed,
978 &style,
979 workspace,
980 cx,
981 )))
982 }
983 _ => None,
984 };
985 multiline_docs.map(|div| {
986 div.id("multiline_docs")
987 .max_h(max_height)
988 .flex_1()
989 .px_1p5()
990 .py_1()
991 .min_w(px(260.))
992 .max_w(px(640.))
993 .w(px(500.))
994 .overflow_y_scroll()
995 .occlude()
996 })
997 } else {
998 None
999 };
1000
1001 let list = uniform_list(
1002 cx.view().clone(),
1003 "completions",
1004 matches.len(),
1005 move |_editor, range, cx| {
1006 let start_ix = range.start;
1007 let completions_guard = completions.read();
1008
1009 matches[range]
1010 .iter()
1011 .enumerate()
1012 .map(|(ix, mat)| {
1013 let item_ix = start_ix + ix;
1014 let candidate_id = mat.candidate_id;
1015 let completion = &completions_guard[candidate_id];
1016
1017 let documentation = if show_completion_documentation {
1018 &completion.documentation
1019 } else {
1020 &None
1021 };
1022
1023 let highlights = gpui::combine_highlights(
1024 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1025 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1026 |(range, mut highlight)| {
1027 // Ignore font weight for syntax highlighting, as we'll use it
1028 // for fuzzy matches.
1029 highlight.font_weight = None;
1030
1031 if completion.lsp_completion.deprecated.unwrap_or(false) {
1032 highlight.strikethrough = Some(StrikethroughStyle {
1033 thickness: 1.0.into(),
1034 ..Default::default()
1035 });
1036 highlight.color = Some(cx.theme().colors().text_muted);
1037 }
1038
1039 (range, highlight)
1040 },
1041 ),
1042 );
1043 let completion_label = StyledText::new(completion.label.text.clone())
1044 .with_highlights(&style.text, highlights);
1045 let documentation_label =
1046 if let Some(Documentation::SingleLine(text)) = documentation {
1047 if text.trim().is_empty() {
1048 None
1049 } else {
1050 Some(
1051 h_flex().ml_4().child(
1052 Label::new(text.clone())
1053 .size(LabelSize::Small)
1054 .color(Color::Muted),
1055 ),
1056 )
1057 }
1058 } else {
1059 None
1060 };
1061
1062 div().min_w(px(220.)).max_w(px(540.)).child(
1063 ListItem::new(mat.candidate_id)
1064 .inset(true)
1065 .selected(item_ix == selected_item)
1066 .on_click(cx.listener(move |editor, _event, cx| {
1067 cx.stop_propagation();
1068 if let Some(task) = editor.confirm_completion(
1069 &ConfirmCompletion {
1070 item_ix: Some(item_ix),
1071 },
1072 cx,
1073 ) {
1074 task.detach_and_log_err(cx)
1075 }
1076 }))
1077 .child(h_flex().overflow_hidden().child(completion_label))
1078 .end_slot::<Div>(documentation_label),
1079 )
1080 })
1081 .collect()
1082 },
1083 )
1084 .occlude()
1085 .max_h(max_height)
1086 .track_scroll(self.scroll_handle.clone())
1087 .with_width_from_item(widest_completion_ix);
1088
1089 Popover::new()
1090 .child(list)
1091 .when_some(multiline_docs, |popover, multiline_docs| {
1092 popover.aside(multiline_docs)
1093 })
1094 .into_any_element()
1095 }
1096
1097 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1098 let mut matches = if let Some(query) = query {
1099 fuzzy::match_strings(
1100 &self.match_candidates,
1101 query,
1102 query.chars().any(|c| c.is_uppercase()),
1103 100,
1104 &Default::default(),
1105 executor,
1106 )
1107 .await
1108 } else {
1109 self.match_candidates
1110 .iter()
1111 .enumerate()
1112 .map(|(candidate_id, candidate)| StringMatch {
1113 candidate_id,
1114 score: Default::default(),
1115 positions: Default::default(),
1116 string: candidate.string.clone(),
1117 })
1118 .collect()
1119 };
1120
1121 // Remove all candidates where the query's start does not match the start of any word in the candidate
1122 if let Some(query) = query {
1123 if let Some(query_start) = query.chars().next() {
1124 matches.retain(|string_match| {
1125 split_words(&string_match.string).any(|word| {
1126 // Check that the first codepoint of the word as lowercase matches the first
1127 // codepoint of the query as lowercase
1128 word.chars()
1129 .flat_map(|codepoint| codepoint.to_lowercase())
1130 .zip(query_start.to_lowercase())
1131 .all(|(word_cp, query_cp)| word_cp == query_cp)
1132 })
1133 });
1134 }
1135 }
1136
1137 let completions = self.completions.read();
1138 matches.sort_unstable_by_key(|mat| {
1139 // We do want to strike a balance here between what the language server tells us
1140 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1141 // `Creat` and there is a local variable called `CreateComponent`).
1142 // So what we do is: we bucket all matches into two buckets
1143 // - Strong matches
1144 // - Weak matches
1145 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1146 // and the Weak matches are the rest.
1147 //
1148 // For the strong matches, we sort by the language-servers score first and for the weak
1149 // matches, we prefer our fuzzy finder first.
1150 //
1151 // The thinking behind that: it's useless to take the sort_text the language-server gives
1152 // us into account when it's obviously a bad match.
1153
1154 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1155 enum MatchScore<'a> {
1156 Strong {
1157 sort_text: Option<&'a str>,
1158 score: Reverse<OrderedFloat<f64>>,
1159 sort_key: (usize, &'a str),
1160 },
1161 Weak {
1162 score: Reverse<OrderedFloat<f64>>,
1163 sort_text: Option<&'a str>,
1164 sort_key: (usize, &'a str),
1165 },
1166 }
1167
1168 let completion = &completions[mat.candidate_id];
1169 let sort_key = completion.sort_key();
1170 let sort_text = completion.lsp_completion.sort_text.as_deref();
1171 let score = Reverse(OrderedFloat(mat.score));
1172
1173 if mat.score >= 0.2 {
1174 MatchScore::Strong {
1175 sort_text,
1176 score,
1177 sort_key,
1178 }
1179 } else {
1180 MatchScore::Weak {
1181 score,
1182 sort_text,
1183 sort_key,
1184 }
1185 }
1186 });
1187
1188 for mat in &mut matches {
1189 let completion = &completions[mat.candidate_id];
1190 mat.string.clone_from(&completion.label.text);
1191 for position in &mut mat.positions {
1192 *position += completion.label.filter_range.start;
1193 }
1194 }
1195 drop(completions);
1196
1197 self.matches = matches.into();
1198 self.selected_item = 0;
1199 }
1200}
1201
1202#[derive(Clone)]
1203struct CodeActionContents {
1204 tasks: Option<Arc<ResolvedTasks>>,
1205 actions: Option<Arc<[CodeAction]>>,
1206}
1207
1208impl CodeActionContents {
1209 fn len(&self) -> usize {
1210 match (&self.tasks, &self.actions) {
1211 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1212 (Some(tasks), None) => tasks.templates.len(),
1213 (None, Some(actions)) => actions.len(),
1214 (None, None) => 0,
1215 }
1216 }
1217
1218 fn is_empty(&self) -> bool {
1219 match (&self.tasks, &self.actions) {
1220 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1221 (Some(tasks), None) => tasks.templates.is_empty(),
1222 (None, Some(actions)) => actions.is_empty(),
1223 (None, None) => true,
1224 }
1225 }
1226
1227 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1228 self.tasks
1229 .iter()
1230 .flat_map(|tasks| {
1231 tasks
1232 .templates
1233 .iter()
1234 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1235 })
1236 .chain(self.actions.iter().flat_map(|actions| {
1237 actions
1238 .iter()
1239 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1240 }))
1241 }
1242 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1243 match (&self.tasks, &self.actions) {
1244 (Some(tasks), Some(actions)) => {
1245 if index < tasks.templates.len() {
1246 tasks
1247 .templates
1248 .get(index)
1249 .cloned()
1250 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1251 } else {
1252 actions
1253 .get(index - tasks.templates.len())
1254 .cloned()
1255 .map(CodeActionsItem::CodeAction)
1256 }
1257 }
1258 (Some(tasks), None) => tasks
1259 .templates
1260 .get(index)
1261 .cloned()
1262 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1263 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1264 (None, None) => None,
1265 }
1266 }
1267}
1268
1269#[allow(clippy::large_enum_variant)]
1270#[derive(Clone)]
1271enum CodeActionsItem {
1272 Task(TaskSourceKind, ResolvedTask),
1273 CodeAction(CodeAction),
1274}
1275
1276impl CodeActionsItem {
1277 fn as_task(&self) -> Option<&ResolvedTask> {
1278 let Self::Task(_, task) = self else {
1279 return None;
1280 };
1281 Some(task)
1282 }
1283 fn as_code_action(&self) -> Option<&CodeAction> {
1284 let Self::CodeAction(action) = self else {
1285 return None;
1286 };
1287 Some(action)
1288 }
1289 fn label(&self) -> String {
1290 match self {
1291 Self::CodeAction(action) => action.lsp_action.title.clone(),
1292 Self::Task(_, task) => task.resolved_label.clone(),
1293 }
1294 }
1295}
1296
1297struct CodeActionsMenu {
1298 actions: CodeActionContents,
1299 buffer: Model<Buffer>,
1300 selected_item: usize,
1301 scroll_handle: UniformListScrollHandle,
1302 deployed_from_indicator: Option<DisplayRow>,
1303}
1304
1305impl CodeActionsMenu {
1306 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1307 self.selected_item = 0;
1308 self.scroll_handle.scroll_to_item(self.selected_item);
1309 cx.notify()
1310 }
1311
1312 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1313 if self.selected_item > 0 {
1314 self.selected_item -= 1;
1315 } else {
1316 self.selected_item = self.actions.len() - 1;
1317 }
1318 self.scroll_handle.scroll_to_item(self.selected_item);
1319 cx.notify();
1320 }
1321
1322 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1323 if self.selected_item + 1 < self.actions.len() {
1324 self.selected_item += 1;
1325 } else {
1326 self.selected_item = 0;
1327 }
1328 self.scroll_handle.scroll_to_item(self.selected_item);
1329 cx.notify();
1330 }
1331
1332 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1333 self.selected_item = self.actions.len() - 1;
1334 self.scroll_handle.scroll_to_item(self.selected_item);
1335 cx.notify()
1336 }
1337
1338 fn visible(&self) -> bool {
1339 !self.actions.is_empty()
1340 }
1341
1342 fn render(
1343 &self,
1344 cursor_position: DisplayPoint,
1345 _style: &EditorStyle,
1346 max_height: Pixels,
1347 cx: &mut ViewContext<Editor>,
1348 ) -> (ContextMenuOrigin, AnyElement) {
1349 let actions = self.actions.clone();
1350 let selected_item = self.selected_item;
1351 let element = uniform_list(
1352 cx.view().clone(),
1353 "code_actions_menu",
1354 self.actions.len(),
1355 move |_this, range, cx| {
1356 actions
1357 .iter()
1358 .skip(range.start)
1359 .take(range.end - range.start)
1360 .enumerate()
1361 .map(|(ix, action)| {
1362 let item_ix = range.start + ix;
1363 let selected = selected_item == item_ix;
1364 let colors = cx.theme().colors();
1365 div()
1366 .px_2()
1367 .text_color(colors.text)
1368 .when(selected, |style| {
1369 style
1370 .bg(colors.element_active)
1371 .text_color(colors.text_accent)
1372 })
1373 .hover(|style| {
1374 style
1375 .bg(colors.element_hover)
1376 .text_color(colors.text_accent)
1377 })
1378 .whitespace_nowrap()
1379 .when_some(action.as_code_action(), |this, action| {
1380 this.on_mouse_down(
1381 MouseButton::Left,
1382 cx.listener(move |editor, _, cx| {
1383 cx.stop_propagation();
1384 if let Some(task) = editor.confirm_code_action(
1385 &ConfirmCodeAction {
1386 item_ix: Some(item_ix),
1387 },
1388 cx,
1389 ) {
1390 task.detach_and_log_err(cx)
1391 }
1392 }),
1393 )
1394 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1395 .child(SharedString::from(action.lsp_action.title.clone()))
1396 })
1397 .when_some(action.as_task(), |this, task| {
1398 this.on_mouse_down(
1399 MouseButton::Left,
1400 cx.listener(move |editor, _, cx| {
1401 cx.stop_propagation();
1402 if let Some(task) = editor.confirm_code_action(
1403 &ConfirmCodeAction {
1404 item_ix: Some(item_ix),
1405 },
1406 cx,
1407 ) {
1408 task.detach_and_log_err(cx)
1409 }
1410 }),
1411 )
1412 .child(SharedString::from(task.resolved_label.clone()))
1413 })
1414 })
1415 .collect()
1416 },
1417 )
1418 .elevation_1(cx)
1419 .px_2()
1420 .py_1()
1421 .max_h(max_height)
1422 .occlude()
1423 .track_scroll(self.scroll_handle.clone())
1424 .with_width_from_item(
1425 self.actions
1426 .iter()
1427 .enumerate()
1428 .max_by_key(|(_, action)| match action {
1429 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1430 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1431 })
1432 .map(|(ix, _)| ix),
1433 )
1434 .into_any_element();
1435
1436 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1437 ContextMenuOrigin::GutterIndicator(row)
1438 } else {
1439 ContextMenuOrigin::EditorPoint(cursor_position)
1440 };
1441
1442 (cursor_position, element)
1443 }
1444}
1445
1446#[derive(Debug)]
1447struct ActiveDiagnosticGroup {
1448 primary_range: Range<Anchor>,
1449 primary_message: String,
1450 group_id: usize,
1451 blocks: HashMap<BlockId, Diagnostic>,
1452 is_valid: bool,
1453}
1454
1455#[derive(Serialize, Deserialize)]
1456pub struct ClipboardSelection {
1457 pub len: usize,
1458 pub is_entire_line: bool,
1459 pub first_line_indent: u32,
1460}
1461
1462#[derive(Debug)]
1463pub(crate) struct NavigationData {
1464 cursor_anchor: Anchor,
1465 cursor_position: Point,
1466 scroll_anchor: ScrollAnchor,
1467 scroll_top_row: u32,
1468}
1469
1470enum GotoDefinitionKind {
1471 Symbol,
1472 Type,
1473 Implementation,
1474}
1475
1476#[derive(Debug, Clone)]
1477enum InlayHintRefreshReason {
1478 Toggle(bool),
1479 SettingsChange(InlayHintSettings),
1480 NewLinesShown,
1481 BufferEdited(HashSet<Arc<Language>>),
1482 RefreshRequested,
1483 ExcerptsRemoved(Vec<ExcerptId>),
1484}
1485
1486impl InlayHintRefreshReason {
1487 fn description(&self) -> &'static str {
1488 match self {
1489 Self::Toggle(_) => "toggle",
1490 Self::SettingsChange(_) => "settings change",
1491 Self::NewLinesShown => "new lines shown",
1492 Self::BufferEdited(_) => "buffer edited",
1493 Self::RefreshRequested => "refresh requested",
1494 Self::ExcerptsRemoved(_) => "excerpts removed",
1495 }
1496 }
1497}
1498
1499impl Editor {
1500 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1501 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1502 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1503 Self::new(EditorMode::SingleLine, buffer, None, cx)
1504 }
1505
1506 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1507 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1508 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1509 Self::new(EditorMode::Full, buffer, None, cx)
1510 }
1511
1512 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1513 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1514 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1515 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1516 }
1517
1518 pub fn for_buffer(
1519 buffer: Model<Buffer>,
1520 project: Option<Model<Project>>,
1521 cx: &mut ViewContext<Self>,
1522 ) -> Self {
1523 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1524 Self::new(EditorMode::Full, buffer, project, cx)
1525 }
1526
1527 pub fn for_multibuffer(
1528 buffer: Model<MultiBuffer>,
1529 project: Option<Model<Project>>,
1530 cx: &mut ViewContext<Self>,
1531 ) -> Self {
1532 Self::new(EditorMode::Full, buffer, project, cx)
1533 }
1534
1535 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1536 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1537 self.display_map.update(cx, |display_map, cx| {
1538 let snapshot = display_map.snapshot(cx);
1539 clone.display_map.update(cx, |display_map, cx| {
1540 display_map.set_state(&snapshot, cx);
1541 });
1542 });
1543 clone.selections.clone_state(&self.selections);
1544 clone.scroll_manager.clone_state(&self.scroll_manager);
1545 clone.searchable = self.searchable;
1546 clone
1547 }
1548
1549 fn new(
1550 mode: EditorMode,
1551 buffer: Model<MultiBuffer>,
1552 project: Option<Model<Project>>,
1553 cx: &mut ViewContext<Self>,
1554 ) -> Self {
1555 let style = cx.text_style();
1556 let font_size = style.font_size.to_pixels(cx.rem_size());
1557 let display_map = cx.new_model(|cx| {
1558 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1559 });
1560
1561 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1562
1563 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1564
1565 let soft_wrap_mode_override =
1566 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1567
1568 let mut project_subscriptions = Vec::new();
1569 if mode == EditorMode::Full {
1570 if let Some(project) = project.as_ref() {
1571 if buffer.read(cx).is_singleton() {
1572 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1573 cx.emit(EditorEvent::TitleChanged);
1574 }));
1575 }
1576 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1577 if let project::Event::RefreshInlayHints = event {
1578 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1579 };
1580 }));
1581 }
1582 }
1583
1584 let inlay_hint_settings = inlay_hint_settings(
1585 selections.newest_anchor().head(),
1586 &buffer.read(cx).snapshot(cx),
1587 cx,
1588 );
1589
1590 let focus_handle = cx.focus_handle();
1591 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1592 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1593
1594 let mut this = Self {
1595 focus_handle,
1596 buffer: buffer.clone(),
1597 display_map: display_map.clone(),
1598 selections,
1599 scroll_manager: ScrollManager::new(cx),
1600 columnar_selection_tail: None,
1601 add_selections_state: None,
1602 select_next_state: None,
1603 select_prev_state: None,
1604 selection_history: Default::default(),
1605 autoclose_regions: Default::default(),
1606 snippet_stack: Default::default(),
1607 select_larger_syntax_node_stack: Vec::new(),
1608 ime_transaction: Default::default(),
1609 active_diagnostics: None,
1610 soft_wrap_mode_override,
1611 completion_provider: project.clone().map(|project| Box::new(project) as _),
1612 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1613 project,
1614 blink_manager: blink_manager.clone(),
1615 show_local_selections: true,
1616 mode,
1617 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1618 show_gutter: mode == EditorMode::Full,
1619 show_wrap_guides: None,
1620 placeholder_text: None,
1621 highlight_order: 0,
1622 highlighted_rows: HashMap::default(),
1623 background_highlights: Default::default(),
1624 scrollbar_marker_state: ScrollbarMarkerState::default(),
1625 nav_history: None,
1626 context_menu: RwLock::new(None),
1627 mouse_context_menu: None,
1628 completion_tasks: Default::default(),
1629 find_all_references_task_sources: Vec::new(),
1630 next_completion_id: 0,
1631 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1632 next_inlay_id: 0,
1633 available_code_actions: Default::default(),
1634 code_actions_task: Default::default(),
1635 document_highlights_task: Default::default(),
1636 pending_rename: Default::default(),
1637 searchable: true,
1638 cursor_shape: Default::default(),
1639 autoindent_mode: Some(AutoindentMode::EachLine),
1640 collapse_matches: false,
1641 workspace: None,
1642 keymap_context_layers: Default::default(),
1643 input_enabled: true,
1644 use_modal_editing: mode == EditorMode::Full,
1645 read_only: false,
1646 use_autoclose: true,
1647 auto_replace_emoji_shortcode: false,
1648 leader_peer_id: None,
1649 remote_id: None,
1650 hover_state: Default::default(),
1651 hovered_link_state: Default::default(),
1652 inline_completion_provider: None,
1653 active_inline_completion: None,
1654 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1655 expanded_hunks: ExpandedHunks::default(),
1656 gutter_hovered: false,
1657 pixel_position_of_newest_cursor: None,
1658 last_bounds: None,
1659 expect_bounds_change: None,
1660 gutter_dimensions: GutterDimensions::default(),
1661 style: None,
1662 show_cursor_names: false,
1663 hovered_cursors: Default::default(),
1664 editor_actions: Default::default(),
1665 vim_replace_map: Default::default(),
1666 show_inline_completions: mode == EditorMode::Full,
1667 custom_context_menu: None,
1668 show_git_blame_gutter: false,
1669 show_git_blame_inline: false,
1670 show_git_blame_inline_delay_task: None,
1671 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1672 blame: None,
1673 blame_subscription: None,
1674 tasks: Default::default(),
1675 _subscriptions: vec![
1676 cx.observe(&buffer, Self::on_buffer_changed),
1677 cx.subscribe(&buffer, Self::on_buffer_event),
1678 cx.observe(&display_map, Self::on_display_map_changed),
1679 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1680 cx.observe_global::<SettingsStore>(Self::settings_changed),
1681 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1682 cx.observe_window_activation(|editor, cx| {
1683 let active = cx.is_window_active();
1684 editor.blink_manager.update(cx, |blink_manager, cx| {
1685 if active {
1686 blink_manager.enable(cx);
1687 } else {
1688 blink_manager.show_cursor(cx);
1689 blink_manager.disable(cx);
1690 }
1691 });
1692 }),
1693 ],
1694 tasks_update_task: None,
1695 };
1696 this.tasks_update_task = Some(this.refresh_runnables(cx));
1697 this._subscriptions.extend(project_subscriptions);
1698
1699 this.end_selection(cx);
1700 this.scroll_manager.show_scrollbar(cx);
1701
1702 if mode == EditorMode::Full {
1703 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1704 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1705
1706 if this.git_blame_inline_enabled {
1707 this.git_blame_inline_enabled = true;
1708 this.start_git_blame_inline(false, cx);
1709 }
1710 }
1711
1712 this.report_editor_event("open", None, cx);
1713 this
1714 }
1715
1716 fn key_context(&self, cx: &AppContext) -> KeyContext {
1717 let mut key_context = KeyContext::new_with_defaults();
1718 key_context.add("Editor");
1719 let mode = match self.mode {
1720 EditorMode::SingleLine => "single_line",
1721 EditorMode::AutoHeight { .. } => "auto_height",
1722 EditorMode::Full => "full",
1723 };
1724 key_context.set("mode", mode);
1725 if self.pending_rename.is_some() {
1726 key_context.add("renaming");
1727 }
1728 if self.context_menu_visible() {
1729 match self.context_menu.read().as_ref() {
1730 Some(ContextMenu::Completions(_)) => {
1731 key_context.add("menu");
1732 key_context.add("showing_completions")
1733 }
1734 Some(ContextMenu::CodeActions(_)) => {
1735 key_context.add("menu");
1736 key_context.add("showing_code_actions")
1737 }
1738 None => {}
1739 }
1740 }
1741
1742 for layer in self.keymap_context_layers.values() {
1743 key_context.extend(layer);
1744 }
1745
1746 if let Some(extension) = self
1747 .buffer
1748 .read(cx)
1749 .as_singleton()
1750 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1751 {
1752 key_context.set("extension", extension.to_string());
1753 }
1754
1755 if self.has_active_inline_completion(cx) {
1756 key_context.add("copilot_suggestion");
1757 key_context.add("inline_completion");
1758 }
1759
1760 key_context
1761 }
1762
1763 pub fn new_file(
1764 workspace: &mut Workspace,
1765 _: &workspace::NewFile,
1766 cx: &mut ViewContext<Workspace>,
1767 ) {
1768 let project = workspace.project().clone();
1769 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1770
1771 cx.spawn(|workspace, mut cx| async move {
1772 let buffer = create.await?;
1773 workspace.update(&mut cx, |workspace, cx| {
1774 workspace.add_item_to_active_pane(
1775 Box::new(
1776 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1777 ),
1778 None,
1779 cx,
1780 )
1781 })
1782 })
1783 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1784 ErrorCode::RemoteUpgradeRequired => Some(format!(
1785 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1786 e.error_tag("required").unwrap_or("the latest version")
1787 )),
1788 _ => None,
1789 });
1790 }
1791
1792 pub fn new_file_in_direction(
1793 workspace: &mut Workspace,
1794 action: &workspace::NewFileInDirection,
1795 cx: &mut ViewContext<Workspace>,
1796 ) {
1797 let project = workspace.project().clone();
1798 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1799 let direction = action.0;
1800
1801 cx.spawn(|workspace, mut cx| async move {
1802 let buffer = create.await?;
1803 workspace.update(&mut cx, move |workspace, cx| {
1804 workspace.split_item(
1805 direction,
1806 Box::new(
1807 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1808 ),
1809 cx,
1810 )
1811 })?;
1812 anyhow::Ok(())
1813 })
1814 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1815 ErrorCode::RemoteUpgradeRequired => Some(format!(
1816 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1817 e.error_tag("required").unwrap_or("the latest version")
1818 )),
1819 _ => None,
1820 });
1821 }
1822
1823 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1824 self.buffer.read(cx).replica_id()
1825 }
1826
1827 pub fn leader_peer_id(&self) -> Option<PeerId> {
1828 self.leader_peer_id
1829 }
1830
1831 pub fn buffer(&self) -> &Model<MultiBuffer> {
1832 &self.buffer
1833 }
1834
1835 pub fn workspace(&self) -> Option<View<Workspace>> {
1836 self.workspace.as_ref()?.0.upgrade()
1837 }
1838
1839 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1840 self.buffer().read(cx).title(cx)
1841 }
1842
1843 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1844 EditorSnapshot {
1845 mode: self.mode,
1846 show_gutter: self.show_gutter,
1847 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1848 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1849 scroll_anchor: self.scroll_manager.anchor(),
1850 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1851 placeholder_text: self.placeholder_text.clone(),
1852 is_focused: self.focus_handle.is_focused(cx),
1853 }
1854 }
1855
1856 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1857 self.buffer.read(cx).language_at(point, cx)
1858 }
1859
1860 pub fn file_at<T: ToOffset>(
1861 &self,
1862 point: T,
1863 cx: &AppContext,
1864 ) -> Option<Arc<dyn language::File>> {
1865 self.buffer.read(cx).read(cx).file_at(point).cloned()
1866 }
1867
1868 pub fn active_excerpt(
1869 &self,
1870 cx: &AppContext,
1871 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1872 self.buffer
1873 .read(cx)
1874 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1875 }
1876
1877 pub fn mode(&self) -> EditorMode {
1878 self.mode
1879 }
1880
1881 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1882 self.collaboration_hub.as_deref()
1883 }
1884
1885 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1886 self.collaboration_hub = Some(hub);
1887 }
1888
1889 pub fn set_custom_context_menu(
1890 &mut self,
1891 f: impl 'static
1892 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1893 ) {
1894 self.custom_context_menu = Some(Box::new(f))
1895 }
1896
1897 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1898 self.completion_provider = Some(hub);
1899 }
1900
1901 pub fn set_inline_completion_provider<T>(
1902 &mut self,
1903 provider: Option<Model<T>>,
1904 cx: &mut ViewContext<Self>,
1905 ) where
1906 T: InlineCompletionProvider,
1907 {
1908 self.inline_completion_provider =
1909 provider.map(|provider| RegisteredInlineCompletionProvider {
1910 _subscription: cx.observe(&provider, |this, _, cx| {
1911 if this.focus_handle.is_focused(cx) {
1912 this.update_visible_inline_completion(cx);
1913 }
1914 }),
1915 provider: Arc::new(provider),
1916 });
1917 self.refresh_inline_completion(false, cx);
1918 }
1919
1920 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1921 self.placeholder_text.as_deref()
1922 }
1923
1924 pub fn set_placeholder_text(
1925 &mut self,
1926 placeholder_text: impl Into<Arc<str>>,
1927 cx: &mut ViewContext<Self>,
1928 ) {
1929 let placeholder_text = Some(placeholder_text.into());
1930 if self.placeholder_text != placeholder_text {
1931 self.placeholder_text = placeholder_text;
1932 cx.notify();
1933 }
1934 }
1935
1936 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1937 self.cursor_shape = cursor_shape;
1938 cx.notify();
1939 }
1940
1941 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1942 self.collapse_matches = collapse_matches;
1943 }
1944
1945 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1946 if self.collapse_matches {
1947 return range.start..range.start;
1948 }
1949 range.clone()
1950 }
1951
1952 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1953 if self.display_map.read(cx).clip_at_line_ends != clip {
1954 self.display_map
1955 .update(cx, |map, _| map.clip_at_line_ends = clip);
1956 }
1957 }
1958
1959 pub fn set_keymap_context_layer<Tag: 'static>(
1960 &mut self,
1961 context: KeyContext,
1962 cx: &mut ViewContext<Self>,
1963 ) {
1964 self.keymap_context_layers
1965 .insert(TypeId::of::<Tag>(), context);
1966 cx.notify();
1967 }
1968
1969 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1970 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1971 cx.notify();
1972 }
1973
1974 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1975 self.input_enabled = input_enabled;
1976 }
1977
1978 pub fn set_autoindent(&mut self, autoindent: bool) {
1979 if autoindent {
1980 self.autoindent_mode = Some(AutoindentMode::EachLine);
1981 } else {
1982 self.autoindent_mode = None;
1983 }
1984 }
1985
1986 pub fn read_only(&self, cx: &AppContext) -> bool {
1987 self.read_only || self.buffer.read(cx).read_only()
1988 }
1989
1990 pub fn set_read_only(&mut self, read_only: bool) {
1991 self.read_only = read_only;
1992 }
1993
1994 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1995 self.use_autoclose = autoclose;
1996 }
1997
1998 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1999 self.auto_replace_emoji_shortcode = auto_replace;
2000 }
2001
2002 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2003 self.show_inline_completions = show_inline_completions;
2004 }
2005
2006 pub fn set_use_modal_editing(&mut self, to: bool) {
2007 self.use_modal_editing = to;
2008 }
2009
2010 pub fn use_modal_editing(&self) -> bool {
2011 self.use_modal_editing
2012 }
2013
2014 fn selections_did_change(
2015 &mut self,
2016 local: bool,
2017 old_cursor_position: &Anchor,
2018 cx: &mut ViewContext<Self>,
2019 ) {
2020 // Copy selections to primary selection buffer
2021 #[cfg(target_os = "linux")]
2022 if local {
2023 let selections = self.selections.all::<usize>(cx);
2024 let buffer_handle = self.buffer.read(cx).read(cx);
2025
2026 let mut text = String::new();
2027 for (index, selection) in selections.iter().enumerate() {
2028 let text_for_selection = buffer_handle
2029 .text_for_range(selection.start..selection.end)
2030 .collect::<String>();
2031
2032 text.push_str(&text_for_selection);
2033 if index != selections.len() - 1 {
2034 text.push('\n');
2035 }
2036 }
2037
2038 if !text.is_empty() {
2039 cx.write_to_primary(ClipboardItem::new(text));
2040 }
2041 }
2042
2043 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2044 self.buffer.update(cx, |buffer, cx| {
2045 buffer.set_active_selections(
2046 &self.selections.disjoint_anchors(),
2047 self.selections.line_mode,
2048 self.cursor_shape,
2049 cx,
2050 )
2051 });
2052 }
2053
2054 let display_map = self
2055 .display_map
2056 .update(cx, |display_map, cx| display_map.snapshot(cx));
2057 let buffer = &display_map.buffer_snapshot;
2058 self.add_selections_state = None;
2059 self.select_next_state = None;
2060 self.select_prev_state = None;
2061 self.select_larger_syntax_node_stack.clear();
2062 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2063 self.snippet_stack
2064 .invalidate(&self.selections.disjoint_anchors(), buffer);
2065 self.take_rename(false, cx);
2066
2067 let new_cursor_position = self.selections.newest_anchor().head();
2068
2069 self.push_to_nav_history(
2070 *old_cursor_position,
2071 Some(new_cursor_position.to_point(buffer)),
2072 cx,
2073 );
2074
2075 if local {
2076 let new_cursor_position = self.selections.newest_anchor().head();
2077 let mut context_menu = self.context_menu.write();
2078 let completion_menu = match context_menu.as_ref() {
2079 Some(ContextMenu::Completions(menu)) => Some(menu),
2080
2081 _ => {
2082 *context_menu = None;
2083 None
2084 }
2085 };
2086
2087 if let Some(completion_menu) = completion_menu {
2088 let cursor_position = new_cursor_position.to_offset(buffer);
2089 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2090 if kind == Some(CharKind::Word)
2091 && word_range.to_inclusive().contains(&cursor_position)
2092 {
2093 let mut completion_menu = completion_menu.clone();
2094 drop(context_menu);
2095
2096 let query = Self::completion_query(buffer, cursor_position);
2097 cx.spawn(move |this, mut cx| async move {
2098 completion_menu
2099 .filter(query.as_deref(), cx.background_executor().clone())
2100 .await;
2101
2102 this.update(&mut cx, |this, cx| {
2103 let mut context_menu = this.context_menu.write();
2104 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2105 return;
2106 };
2107
2108 if menu.id > completion_menu.id {
2109 return;
2110 }
2111
2112 *context_menu = Some(ContextMenu::Completions(completion_menu));
2113 drop(context_menu);
2114 cx.notify();
2115 })
2116 })
2117 .detach();
2118
2119 self.show_completions(&ShowCompletions, cx);
2120 } else {
2121 drop(context_menu);
2122 self.hide_context_menu(cx);
2123 }
2124 } else {
2125 drop(context_menu);
2126 }
2127
2128 hide_hover(self, cx);
2129
2130 if old_cursor_position.to_display_point(&display_map).row()
2131 != new_cursor_position.to_display_point(&display_map).row()
2132 {
2133 self.available_code_actions.take();
2134 }
2135 self.refresh_code_actions(cx);
2136 self.refresh_document_highlights(cx);
2137 refresh_matching_bracket_highlights(self, cx);
2138 self.discard_inline_completion(cx);
2139 if self.git_blame_inline_enabled {
2140 self.start_inline_blame_timer(cx);
2141 }
2142 }
2143
2144 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2145 cx.emit(EditorEvent::SelectionsChanged { local });
2146
2147 if self.selections.disjoint_anchors().len() == 1 {
2148 cx.emit(SearchEvent::ActiveMatchChanged)
2149 }
2150
2151 cx.notify();
2152 }
2153
2154 pub fn change_selections<R>(
2155 &mut self,
2156 autoscroll: Option<Autoscroll>,
2157 cx: &mut ViewContext<Self>,
2158 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2159 ) -> R {
2160 let old_cursor_position = self.selections.newest_anchor().head();
2161 self.push_to_selection_history();
2162
2163 let (changed, result) = self.selections.change_with(cx, change);
2164
2165 if changed {
2166 if let Some(autoscroll) = autoscroll {
2167 self.request_autoscroll(autoscroll, cx);
2168 }
2169 self.selections_did_change(true, &old_cursor_position, cx);
2170 }
2171
2172 result
2173 }
2174
2175 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2176 where
2177 I: IntoIterator<Item = (Range<S>, T)>,
2178 S: ToOffset,
2179 T: Into<Arc<str>>,
2180 {
2181 if self.read_only(cx) {
2182 return;
2183 }
2184
2185 self.buffer
2186 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2187 }
2188
2189 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2190 where
2191 I: IntoIterator<Item = (Range<S>, T)>,
2192 S: ToOffset,
2193 T: Into<Arc<str>>,
2194 {
2195 if self.read_only(cx) {
2196 return;
2197 }
2198
2199 self.buffer.update(cx, |buffer, cx| {
2200 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2201 });
2202 }
2203
2204 pub fn edit_with_block_indent<I, S, T>(
2205 &mut self,
2206 edits: I,
2207 original_indent_columns: Vec<u32>,
2208 cx: &mut ViewContext<Self>,
2209 ) where
2210 I: IntoIterator<Item = (Range<S>, T)>,
2211 S: ToOffset,
2212 T: Into<Arc<str>>,
2213 {
2214 if self.read_only(cx) {
2215 return;
2216 }
2217
2218 self.buffer.update(cx, |buffer, cx| {
2219 buffer.edit(
2220 edits,
2221 Some(AutoindentMode::Block {
2222 original_indent_columns,
2223 }),
2224 cx,
2225 )
2226 });
2227 }
2228
2229 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2230 self.hide_context_menu(cx);
2231
2232 match phase {
2233 SelectPhase::Begin {
2234 position,
2235 add,
2236 click_count,
2237 } => self.begin_selection(position, add, click_count, cx),
2238 SelectPhase::BeginColumnar {
2239 position,
2240 goal_column,
2241 } => self.begin_columnar_selection(position, goal_column, cx),
2242 SelectPhase::Extend {
2243 position,
2244 click_count,
2245 } => self.extend_selection(position, click_count, cx),
2246 SelectPhase::Update {
2247 position,
2248 goal_column,
2249 scroll_delta,
2250 } => self.update_selection(position, goal_column, scroll_delta, cx),
2251 SelectPhase::End => self.end_selection(cx),
2252 }
2253 }
2254
2255 fn extend_selection(
2256 &mut self,
2257 position: DisplayPoint,
2258 click_count: usize,
2259 cx: &mut ViewContext<Self>,
2260 ) {
2261 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2262 let tail = self.selections.newest::<usize>(cx).tail();
2263 self.begin_selection(position, false, click_count, cx);
2264
2265 let position = position.to_offset(&display_map, Bias::Left);
2266 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2267
2268 let mut pending_selection = self
2269 .selections
2270 .pending_anchor()
2271 .expect("extend_selection not called with pending selection");
2272 if position >= tail {
2273 pending_selection.start = tail_anchor;
2274 } else {
2275 pending_selection.end = tail_anchor;
2276 pending_selection.reversed = true;
2277 }
2278
2279 let mut pending_mode = self.selections.pending_mode().unwrap();
2280 match &mut pending_mode {
2281 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2282 _ => {}
2283 }
2284
2285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2286 s.set_pending(pending_selection, pending_mode)
2287 });
2288 }
2289
2290 fn begin_selection(
2291 &mut self,
2292 position: DisplayPoint,
2293 add: bool,
2294 click_count: usize,
2295 cx: &mut ViewContext<Self>,
2296 ) {
2297 if !self.focus_handle.is_focused(cx) {
2298 cx.focus(&self.focus_handle);
2299 }
2300
2301 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2302 let buffer = &display_map.buffer_snapshot;
2303 let newest_selection = self.selections.newest_anchor().clone();
2304 let position = display_map.clip_point(position, Bias::Left);
2305
2306 let start;
2307 let end;
2308 let mode;
2309 let auto_scroll;
2310 match click_count {
2311 1 => {
2312 start = buffer.anchor_before(position.to_point(&display_map));
2313 end = start;
2314 mode = SelectMode::Character;
2315 auto_scroll = true;
2316 }
2317 2 => {
2318 let range = movement::surrounding_word(&display_map, position);
2319 start = buffer.anchor_before(range.start.to_point(&display_map));
2320 end = buffer.anchor_before(range.end.to_point(&display_map));
2321 mode = SelectMode::Word(start..end);
2322 auto_scroll = true;
2323 }
2324 3 => {
2325 let position = display_map
2326 .clip_point(position, Bias::Left)
2327 .to_point(&display_map);
2328 let line_start = display_map.prev_line_boundary(position).0;
2329 let next_line_start = buffer.clip_point(
2330 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2331 Bias::Left,
2332 );
2333 start = buffer.anchor_before(line_start);
2334 end = buffer.anchor_before(next_line_start);
2335 mode = SelectMode::Line(start..end);
2336 auto_scroll = true;
2337 }
2338 _ => {
2339 start = buffer.anchor_before(0);
2340 end = buffer.anchor_before(buffer.len());
2341 mode = SelectMode::All;
2342 auto_scroll = false;
2343 }
2344 }
2345
2346 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2347 if !add {
2348 s.clear_disjoint();
2349 } else if click_count > 1 {
2350 s.delete(newest_selection.id)
2351 }
2352
2353 s.set_pending_anchor_range(start..end, mode);
2354 });
2355 }
2356
2357 fn begin_columnar_selection(
2358 &mut self,
2359 position: DisplayPoint,
2360 goal_column: u32,
2361 cx: &mut ViewContext<Self>,
2362 ) {
2363 if !self.focus_handle.is_focused(cx) {
2364 cx.focus(&self.focus_handle);
2365 }
2366
2367 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2368 let tail = self.selections.newest::<Point>(cx).tail();
2369 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2370
2371 self.select_columns(
2372 tail.to_display_point(&display_map),
2373 position,
2374 goal_column,
2375 &display_map,
2376 cx,
2377 );
2378 }
2379
2380 fn update_selection(
2381 &mut self,
2382 position: DisplayPoint,
2383 goal_column: u32,
2384 scroll_delta: gpui::Point<f32>,
2385 cx: &mut ViewContext<Self>,
2386 ) {
2387 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2388
2389 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2390 let tail = tail.to_display_point(&display_map);
2391 self.select_columns(tail, position, goal_column, &display_map, cx);
2392 } else if let Some(mut pending) = self.selections.pending_anchor() {
2393 let buffer = self.buffer.read(cx).snapshot(cx);
2394 let head;
2395 let tail;
2396 let mode = self.selections.pending_mode().unwrap();
2397 match &mode {
2398 SelectMode::Character => {
2399 head = position.to_point(&display_map);
2400 tail = pending.tail().to_point(&buffer);
2401 }
2402 SelectMode::Word(original_range) => {
2403 let original_display_range = original_range.start.to_display_point(&display_map)
2404 ..original_range.end.to_display_point(&display_map);
2405 let original_buffer_range = original_display_range.start.to_point(&display_map)
2406 ..original_display_range.end.to_point(&display_map);
2407 if movement::is_inside_word(&display_map, position)
2408 || original_display_range.contains(&position)
2409 {
2410 let word_range = movement::surrounding_word(&display_map, position);
2411 if word_range.start < original_display_range.start {
2412 head = word_range.start.to_point(&display_map);
2413 } else {
2414 head = word_range.end.to_point(&display_map);
2415 }
2416 } else {
2417 head = position.to_point(&display_map);
2418 }
2419
2420 if head <= original_buffer_range.start {
2421 tail = original_buffer_range.end;
2422 } else {
2423 tail = original_buffer_range.start;
2424 }
2425 }
2426 SelectMode::Line(original_range) => {
2427 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2428
2429 let position = display_map
2430 .clip_point(position, Bias::Left)
2431 .to_point(&display_map);
2432 let line_start = display_map.prev_line_boundary(position).0;
2433 let next_line_start = buffer.clip_point(
2434 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2435 Bias::Left,
2436 );
2437
2438 if line_start < original_range.start {
2439 head = line_start
2440 } else {
2441 head = next_line_start
2442 }
2443
2444 if head <= original_range.start {
2445 tail = original_range.end;
2446 } else {
2447 tail = original_range.start;
2448 }
2449 }
2450 SelectMode::All => {
2451 return;
2452 }
2453 };
2454
2455 if head < tail {
2456 pending.start = buffer.anchor_before(head);
2457 pending.end = buffer.anchor_before(tail);
2458 pending.reversed = true;
2459 } else {
2460 pending.start = buffer.anchor_before(tail);
2461 pending.end = buffer.anchor_before(head);
2462 pending.reversed = false;
2463 }
2464
2465 self.change_selections(None, cx, |s| {
2466 s.set_pending(pending, mode);
2467 });
2468 } else {
2469 log::error!("update_selection dispatched with no pending selection");
2470 return;
2471 }
2472
2473 self.apply_scroll_delta(scroll_delta, cx);
2474 cx.notify();
2475 }
2476
2477 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2478 self.columnar_selection_tail.take();
2479 if self.selections.pending_anchor().is_some() {
2480 let selections = self.selections.all::<usize>(cx);
2481 self.change_selections(None, cx, |s| {
2482 s.select(selections);
2483 s.clear_pending();
2484 });
2485 }
2486 }
2487
2488 fn select_columns(
2489 &mut self,
2490 tail: DisplayPoint,
2491 head: DisplayPoint,
2492 goal_column: u32,
2493 display_map: &DisplaySnapshot,
2494 cx: &mut ViewContext<Self>,
2495 ) {
2496 let start_row = cmp::min(tail.row(), head.row());
2497 let end_row = cmp::max(tail.row(), head.row());
2498 let start_column = cmp::min(tail.column(), goal_column);
2499 let end_column = cmp::max(tail.column(), goal_column);
2500 let reversed = start_column < tail.column();
2501
2502 let selection_ranges = (start_row.0..=end_row.0)
2503 .map(DisplayRow)
2504 .filter_map(|row| {
2505 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2506 let start = display_map
2507 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2508 .to_point(display_map);
2509 let end = display_map
2510 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2511 .to_point(display_map);
2512 if reversed {
2513 Some(end..start)
2514 } else {
2515 Some(start..end)
2516 }
2517 } else {
2518 None
2519 }
2520 })
2521 .collect::<Vec<_>>();
2522
2523 self.change_selections(None, cx, |s| {
2524 s.select_ranges(selection_ranges);
2525 });
2526 cx.notify();
2527 }
2528
2529 pub fn has_pending_nonempty_selection(&self) -> bool {
2530 let pending_nonempty_selection = match self.selections.pending_anchor() {
2531 Some(Selection { start, end, .. }) => start != end,
2532 None => false,
2533 };
2534 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2535 }
2536
2537 pub fn has_pending_selection(&self) -> bool {
2538 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2539 }
2540
2541 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2542 self.clear_expanded_diff_hunks(cx);
2543 if self.dismiss_menus_and_popups(cx) {
2544 return;
2545 }
2546
2547 if self.mode == EditorMode::Full {
2548 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2549 return;
2550 }
2551 }
2552
2553 cx.propagate();
2554 }
2555
2556 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2557 if self.take_rename(false, cx).is_some() {
2558 return true;
2559 }
2560
2561 if hide_hover(self, cx) {
2562 return true;
2563 }
2564
2565 if self.hide_context_menu(cx).is_some() {
2566 return true;
2567 }
2568
2569 if self.discard_inline_completion(cx) {
2570 return true;
2571 }
2572
2573 if self.snippet_stack.pop().is_some() {
2574 return true;
2575 }
2576
2577 if self.mode == EditorMode::Full {
2578 if self.active_diagnostics.is_some() {
2579 self.dismiss_diagnostics(cx);
2580 return true;
2581 }
2582 }
2583
2584 false
2585 }
2586
2587 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2588 let text: Arc<str> = text.into();
2589
2590 if self.read_only(cx) {
2591 return;
2592 }
2593
2594 let selections = self.selections.all_adjusted(cx);
2595 let mut brace_inserted = false;
2596 let mut edits = Vec::new();
2597 let mut new_selections = Vec::with_capacity(selections.len());
2598 let mut new_autoclose_regions = Vec::new();
2599 let snapshot = self.buffer.read(cx).read(cx);
2600
2601 for (selection, autoclose_region) in
2602 self.selections_with_autoclose_regions(selections, &snapshot)
2603 {
2604 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2605 // Determine if the inserted text matches the opening or closing
2606 // bracket of any of this language's bracket pairs.
2607 let mut bracket_pair = None;
2608 let mut is_bracket_pair_start = false;
2609 let mut is_bracket_pair_end = false;
2610 if !text.is_empty() {
2611 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2612 // and they are removing the character that triggered IME popup.
2613 for (pair, enabled) in scope.brackets() {
2614 if !pair.close {
2615 continue;
2616 }
2617
2618 if enabled && pair.start.ends_with(text.as_ref()) {
2619 bracket_pair = Some(pair.clone());
2620 is_bracket_pair_start = true;
2621 break;
2622 }
2623 if pair.end.as_str() == text.as_ref() {
2624 bracket_pair = Some(pair.clone());
2625 is_bracket_pair_end = true;
2626 break;
2627 }
2628 }
2629 }
2630
2631 if let Some(bracket_pair) = bracket_pair {
2632 if selection.is_empty() {
2633 if is_bracket_pair_start {
2634 let prefix_len = bracket_pair.start.len() - text.len();
2635
2636 // If the inserted text is a suffix of an opening bracket and the
2637 // selection is preceded by the rest of the opening bracket, then
2638 // insert the closing bracket.
2639 let following_text_allows_autoclose = snapshot
2640 .chars_at(selection.start)
2641 .next()
2642 .map_or(true, |c| scope.should_autoclose_before(c));
2643 let preceding_text_matches_prefix = prefix_len == 0
2644 || (selection.start.column >= (prefix_len as u32)
2645 && snapshot.contains_str_at(
2646 Point::new(
2647 selection.start.row,
2648 selection.start.column - (prefix_len as u32),
2649 ),
2650 &bracket_pair.start[..prefix_len],
2651 ));
2652 let autoclose = self.use_autoclose
2653 && snapshot.settings_at(selection.start, cx).use_autoclose;
2654 if autoclose
2655 && following_text_allows_autoclose
2656 && preceding_text_matches_prefix
2657 {
2658 let anchor = snapshot.anchor_before(selection.end);
2659 new_selections.push((selection.map(|_| anchor), text.len()));
2660 new_autoclose_regions.push((
2661 anchor,
2662 text.len(),
2663 selection.id,
2664 bracket_pair.clone(),
2665 ));
2666 edits.push((
2667 selection.range(),
2668 format!("{}{}", text, bracket_pair.end).into(),
2669 ));
2670 brace_inserted = true;
2671 continue;
2672 }
2673 }
2674
2675 if let Some(region) = autoclose_region {
2676 // If the selection is followed by an auto-inserted closing bracket,
2677 // then don't insert that closing bracket again; just move the selection
2678 // past the closing bracket.
2679 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2680 && text.as_ref() == region.pair.end.as_str();
2681 if should_skip {
2682 let anchor = snapshot.anchor_after(selection.end);
2683 new_selections
2684 .push((selection.map(|_| anchor), region.pair.end.len()));
2685 continue;
2686 }
2687 }
2688
2689 let always_treat_brackets_as_autoclosed = snapshot
2690 .settings_at(selection.start, cx)
2691 .always_treat_brackets_as_autoclosed;
2692 if always_treat_brackets_as_autoclosed
2693 && is_bracket_pair_end
2694 && snapshot.contains_str_at(selection.end, text.as_ref())
2695 {
2696 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2697 // and the inserted text is a closing bracket and the selection is followed
2698 // by the closing bracket then move the selection past the closing bracket.
2699 let anchor = snapshot.anchor_after(selection.end);
2700 new_selections.push((selection.map(|_| anchor), text.len()));
2701 continue;
2702 }
2703 }
2704 // If an opening bracket is 1 character long and is typed while
2705 // text is selected, then surround that text with the bracket pair.
2706 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2707 edits.push((selection.start..selection.start, text.clone()));
2708 edits.push((
2709 selection.end..selection.end,
2710 bracket_pair.end.as_str().into(),
2711 ));
2712 brace_inserted = true;
2713 new_selections.push((
2714 Selection {
2715 id: selection.id,
2716 start: snapshot.anchor_after(selection.start),
2717 end: snapshot.anchor_before(selection.end),
2718 reversed: selection.reversed,
2719 goal: selection.goal,
2720 },
2721 0,
2722 ));
2723 continue;
2724 }
2725 }
2726 }
2727
2728 if self.auto_replace_emoji_shortcode
2729 && selection.is_empty()
2730 && text.as_ref().ends_with(':')
2731 {
2732 if let Some(possible_emoji_short_code) =
2733 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2734 {
2735 if !possible_emoji_short_code.is_empty() {
2736 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2737 let emoji_shortcode_start = Point::new(
2738 selection.start.row,
2739 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2740 );
2741
2742 // Remove shortcode from buffer
2743 edits.push((
2744 emoji_shortcode_start..selection.start,
2745 "".to_string().into(),
2746 ));
2747 new_selections.push((
2748 Selection {
2749 id: selection.id,
2750 start: snapshot.anchor_after(emoji_shortcode_start),
2751 end: snapshot.anchor_before(selection.start),
2752 reversed: selection.reversed,
2753 goal: selection.goal,
2754 },
2755 0,
2756 ));
2757
2758 // Insert emoji
2759 let selection_start_anchor = snapshot.anchor_after(selection.start);
2760 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2761 edits.push((selection.start..selection.end, emoji.to_string().into()));
2762
2763 continue;
2764 }
2765 }
2766 }
2767 }
2768
2769 // If not handling any auto-close operation, then just replace the selected
2770 // text with the given input and move the selection to the end of the
2771 // newly inserted text.
2772 let anchor = snapshot.anchor_after(selection.end);
2773 new_selections.push((selection.map(|_| anchor), 0));
2774 edits.push((selection.start..selection.end, text.clone()));
2775 }
2776
2777 drop(snapshot);
2778 self.transact(cx, |this, cx| {
2779 this.buffer.update(cx, |buffer, cx| {
2780 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2781 });
2782
2783 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2784 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2785 let snapshot = this.buffer.read(cx).read(cx);
2786 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2787 .zip(new_selection_deltas)
2788 .map(|(selection, delta)| Selection {
2789 id: selection.id,
2790 start: selection.start + delta,
2791 end: selection.end + delta,
2792 reversed: selection.reversed,
2793 goal: SelectionGoal::None,
2794 })
2795 .collect::<Vec<_>>();
2796
2797 let mut i = 0;
2798 for (position, delta, selection_id, pair) in new_autoclose_regions {
2799 let position = position.to_offset(&snapshot) + delta;
2800 let start = snapshot.anchor_before(position);
2801 let end = snapshot.anchor_after(position);
2802 while let Some(existing_state) = this.autoclose_regions.get(i) {
2803 match existing_state.range.start.cmp(&start, &snapshot) {
2804 Ordering::Less => i += 1,
2805 Ordering::Greater => break,
2806 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2807 Ordering::Less => i += 1,
2808 Ordering::Equal => break,
2809 Ordering::Greater => break,
2810 },
2811 }
2812 }
2813 this.autoclose_regions.insert(
2814 i,
2815 AutocloseRegion {
2816 selection_id,
2817 range: start..end,
2818 pair,
2819 },
2820 );
2821 }
2822
2823 drop(snapshot);
2824 let had_active_inline_completion = this.has_active_inline_completion(cx);
2825 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2826
2827 if brace_inserted {
2828 // If we inserted a brace while composing text (i.e. typing `"` on a
2829 // Brazilian keyboard), exit the composing state because most likely
2830 // the user wanted to surround the selection.
2831 this.unmark_text(cx);
2832 } else if EditorSettings::get_global(cx).use_on_type_format {
2833 if let Some(on_type_format_task) =
2834 this.trigger_on_type_formatting(text.to_string(), cx)
2835 {
2836 on_type_format_task.detach_and_log_err(cx);
2837 }
2838 }
2839
2840 let trigger_in_words = !had_active_inline_completion;
2841 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2842 this.refresh_inline_completion(true, cx);
2843 });
2844 }
2845
2846 fn find_possible_emoji_shortcode_at_position(
2847 snapshot: &MultiBufferSnapshot,
2848 position: Point,
2849 ) -> Option<String> {
2850 let mut chars = Vec::new();
2851 let mut found_colon = false;
2852 for char in snapshot.reversed_chars_at(position).take(100) {
2853 // Found a possible emoji shortcode in the middle of the buffer
2854 if found_colon {
2855 if char.is_whitespace() {
2856 chars.reverse();
2857 return Some(chars.iter().collect());
2858 }
2859 // If the previous character is not a whitespace, we are in the middle of a word
2860 // and we only want to complete the shortcode if the word is made up of other emojis
2861 let mut containing_word = String::new();
2862 for ch in snapshot
2863 .reversed_chars_at(position)
2864 .skip(chars.len() + 1)
2865 .take(100)
2866 {
2867 if ch.is_whitespace() {
2868 break;
2869 }
2870 containing_word.push(ch);
2871 }
2872 let containing_word = containing_word.chars().rev().collect::<String>();
2873 if util::word_consists_of_emojis(containing_word.as_str()) {
2874 chars.reverse();
2875 return Some(chars.iter().collect());
2876 }
2877 }
2878
2879 if char.is_whitespace() || !char.is_ascii() {
2880 return None;
2881 }
2882 if char == ':' {
2883 found_colon = true;
2884 } else {
2885 chars.push(char);
2886 }
2887 }
2888 // Found a possible emoji shortcode at the beginning of the buffer
2889 chars.reverse();
2890 Some(chars.iter().collect())
2891 }
2892
2893 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2894 self.transact(cx, |this, cx| {
2895 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2896 let selections = this.selections.all::<usize>(cx);
2897 let multi_buffer = this.buffer.read(cx);
2898 let buffer = multi_buffer.snapshot(cx);
2899 selections
2900 .iter()
2901 .map(|selection| {
2902 let start_point = selection.start.to_point(&buffer);
2903 let mut indent =
2904 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2905 indent.len = cmp::min(indent.len, start_point.column);
2906 let start = selection.start;
2907 let end = selection.end;
2908 let selection_is_empty = start == end;
2909 let language_scope = buffer.language_scope_at(start);
2910 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2911 &language_scope
2912 {
2913 let leading_whitespace_len = buffer
2914 .reversed_chars_at(start)
2915 .take_while(|c| c.is_whitespace() && *c != '\n')
2916 .map(|c| c.len_utf8())
2917 .sum::<usize>();
2918
2919 let trailing_whitespace_len = buffer
2920 .chars_at(end)
2921 .take_while(|c| c.is_whitespace() && *c != '\n')
2922 .map(|c| c.len_utf8())
2923 .sum::<usize>();
2924
2925 let insert_extra_newline =
2926 language.brackets().any(|(pair, enabled)| {
2927 let pair_start = pair.start.trim_end();
2928 let pair_end = pair.end.trim_start();
2929
2930 enabled
2931 && pair.newline
2932 && buffer.contains_str_at(
2933 end + trailing_whitespace_len,
2934 pair_end,
2935 )
2936 && buffer.contains_str_at(
2937 (start - leading_whitespace_len)
2938 .saturating_sub(pair_start.len()),
2939 pair_start,
2940 )
2941 });
2942
2943 // Comment extension on newline is allowed only for cursor selections
2944 let comment_delimiter = maybe!({
2945 if !selection_is_empty {
2946 return None;
2947 }
2948
2949 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2950 return None;
2951 }
2952
2953 let delimiters = language.line_comment_prefixes();
2954 let max_len_of_delimiter =
2955 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2956 let (snapshot, range) =
2957 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2958
2959 let mut index_of_first_non_whitespace = 0;
2960 let comment_candidate = snapshot
2961 .chars_for_range(range)
2962 .skip_while(|c| {
2963 let should_skip = c.is_whitespace();
2964 if should_skip {
2965 index_of_first_non_whitespace += 1;
2966 }
2967 should_skip
2968 })
2969 .take(max_len_of_delimiter)
2970 .collect::<String>();
2971 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2972 comment_candidate.starts_with(comment_prefix.as_ref())
2973 })?;
2974 let cursor_is_placed_after_comment_marker =
2975 index_of_first_non_whitespace + comment_prefix.len()
2976 <= start_point.column as usize;
2977 if cursor_is_placed_after_comment_marker {
2978 Some(comment_prefix.clone())
2979 } else {
2980 None
2981 }
2982 });
2983 (comment_delimiter, insert_extra_newline)
2984 } else {
2985 (None, false)
2986 };
2987
2988 let capacity_for_delimiter = comment_delimiter
2989 .as_deref()
2990 .map(str::len)
2991 .unwrap_or_default();
2992 let mut new_text =
2993 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2994 new_text.push_str("\n");
2995 new_text.extend(indent.chars());
2996 if let Some(delimiter) = &comment_delimiter {
2997 new_text.push_str(&delimiter);
2998 }
2999 if insert_extra_newline {
3000 new_text = new_text.repeat(2);
3001 }
3002
3003 let anchor = buffer.anchor_after(end);
3004 let new_selection = selection.map(|_| anchor);
3005 (
3006 (start..end, new_text),
3007 (insert_extra_newline, new_selection),
3008 )
3009 })
3010 .unzip()
3011 };
3012
3013 this.edit_with_autoindent(edits, cx);
3014 let buffer = this.buffer.read(cx).snapshot(cx);
3015 let new_selections = selection_fixup_info
3016 .into_iter()
3017 .map(|(extra_newline_inserted, new_selection)| {
3018 let mut cursor = new_selection.end.to_point(&buffer);
3019 if extra_newline_inserted {
3020 cursor.row -= 1;
3021 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3022 }
3023 new_selection.map(|_| cursor)
3024 })
3025 .collect();
3026
3027 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3028 this.refresh_inline_completion(true, cx);
3029 });
3030 }
3031
3032 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3033 let buffer = self.buffer.read(cx);
3034 let snapshot = buffer.snapshot(cx);
3035
3036 let mut edits = Vec::new();
3037 let mut rows = Vec::new();
3038
3039 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3040 let cursor = selection.head();
3041 let row = cursor.row;
3042
3043 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3044
3045 let newline = "\n".to_string();
3046 edits.push((start_of_line..start_of_line, newline));
3047
3048 rows.push(row + rows_inserted as u32);
3049 }
3050
3051 self.transact(cx, |editor, cx| {
3052 editor.edit(edits, cx);
3053
3054 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3055 let mut index = 0;
3056 s.move_cursors_with(|map, _, _| {
3057 let row = rows[index];
3058 index += 1;
3059
3060 let point = Point::new(row, 0);
3061 let boundary = map.next_line_boundary(point).1;
3062 let clipped = map.clip_point(boundary, Bias::Left);
3063
3064 (clipped, SelectionGoal::None)
3065 });
3066 });
3067
3068 let mut indent_edits = Vec::new();
3069 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3070 for row in rows {
3071 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3072 for (row, indent) in indents {
3073 if indent.len == 0 {
3074 continue;
3075 }
3076
3077 let text = match indent.kind {
3078 IndentKind::Space => " ".repeat(indent.len as usize),
3079 IndentKind::Tab => "\t".repeat(indent.len as usize),
3080 };
3081 let point = Point::new(row.0, 0);
3082 indent_edits.push((point..point, text));
3083 }
3084 }
3085 editor.edit(indent_edits, cx);
3086 });
3087 }
3088
3089 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3090 let buffer = self.buffer.read(cx);
3091 let snapshot = buffer.snapshot(cx);
3092
3093 let mut edits = Vec::new();
3094 let mut rows = Vec::new();
3095 let mut rows_inserted = 0;
3096
3097 for selection in self.selections.all_adjusted(cx) {
3098 let cursor = selection.head();
3099 let row = cursor.row;
3100
3101 let point = Point::new(row + 1, 0);
3102 let start_of_line = snapshot.clip_point(point, Bias::Left);
3103
3104 let newline = "\n".to_string();
3105 edits.push((start_of_line..start_of_line, newline));
3106
3107 rows_inserted += 1;
3108 rows.push(row + rows_inserted);
3109 }
3110
3111 self.transact(cx, |editor, cx| {
3112 editor.edit(edits, cx);
3113
3114 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3115 let mut index = 0;
3116 s.move_cursors_with(|map, _, _| {
3117 let row = rows[index];
3118 index += 1;
3119
3120 let point = Point::new(row, 0);
3121 let boundary = map.next_line_boundary(point).1;
3122 let clipped = map.clip_point(boundary, Bias::Left);
3123
3124 (clipped, SelectionGoal::None)
3125 });
3126 });
3127
3128 let mut indent_edits = Vec::new();
3129 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3130 for row in rows {
3131 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3132 for (row, indent) in indents {
3133 if indent.len == 0 {
3134 continue;
3135 }
3136
3137 let text = match indent.kind {
3138 IndentKind::Space => " ".repeat(indent.len as usize),
3139 IndentKind::Tab => "\t".repeat(indent.len as usize),
3140 };
3141 let point = Point::new(row.0, 0);
3142 indent_edits.push((point..point, text));
3143 }
3144 }
3145 editor.edit(indent_edits, cx);
3146 });
3147 }
3148
3149 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3150 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3151 original_indent_columns: Vec::new(),
3152 });
3153 self.insert_with_autoindent_mode(text, autoindent, cx);
3154 }
3155
3156 fn insert_with_autoindent_mode(
3157 &mut self,
3158 text: &str,
3159 autoindent_mode: Option<AutoindentMode>,
3160 cx: &mut ViewContext<Self>,
3161 ) {
3162 if self.read_only(cx) {
3163 return;
3164 }
3165
3166 let text: Arc<str> = text.into();
3167 self.transact(cx, |this, cx| {
3168 let old_selections = this.selections.all_adjusted(cx);
3169 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3170 let anchors = {
3171 let snapshot = buffer.read(cx);
3172 old_selections
3173 .iter()
3174 .map(|s| {
3175 let anchor = snapshot.anchor_after(s.head());
3176 s.map(|_| anchor)
3177 })
3178 .collect::<Vec<_>>()
3179 };
3180 buffer.edit(
3181 old_selections
3182 .iter()
3183 .map(|s| (s.start..s.end, text.clone())),
3184 autoindent_mode,
3185 cx,
3186 );
3187 anchors
3188 });
3189
3190 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3191 s.select_anchors(selection_anchors);
3192 })
3193 });
3194 }
3195
3196 fn trigger_completion_on_input(
3197 &mut self,
3198 text: &str,
3199 trigger_in_words: bool,
3200 cx: &mut ViewContext<Self>,
3201 ) {
3202 if !EditorSettings::get_global(cx).show_completions_on_input {
3203 return;
3204 }
3205
3206 let selection = self.selections.newest_anchor();
3207 if self
3208 .buffer
3209 .read(cx)
3210 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3211 {
3212 self.show_completions(&ShowCompletions, cx);
3213 } else {
3214 self.hide_context_menu(cx);
3215 }
3216 }
3217
3218 /// If any empty selections is touching the start of its innermost containing autoclose
3219 /// region, expand it to select the brackets.
3220 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3221 let selections = self.selections.all::<usize>(cx);
3222 let buffer = self.buffer.read(cx).read(cx);
3223 let new_selections = self
3224 .selections_with_autoclose_regions(selections, &buffer)
3225 .map(|(mut selection, region)| {
3226 if !selection.is_empty() {
3227 return selection;
3228 }
3229
3230 if let Some(region) = region {
3231 let mut range = region.range.to_offset(&buffer);
3232 if selection.start == range.start && range.start >= region.pair.start.len() {
3233 range.start -= region.pair.start.len();
3234 if buffer.contains_str_at(range.start, ®ion.pair.start)
3235 && buffer.contains_str_at(range.end, ®ion.pair.end)
3236 {
3237 range.end += region.pair.end.len();
3238 selection.start = range.start;
3239 selection.end = range.end;
3240
3241 return selection;
3242 }
3243 }
3244 }
3245
3246 let always_treat_brackets_as_autoclosed = buffer
3247 .settings_at(selection.start, cx)
3248 .always_treat_brackets_as_autoclosed;
3249
3250 if !always_treat_brackets_as_autoclosed {
3251 return selection;
3252 }
3253
3254 if let Some(scope) = buffer.language_scope_at(selection.start) {
3255 for (pair, enabled) in scope.brackets() {
3256 if !enabled || !pair.close {
3257 continue;
3258 }
3259
3260 if buffer.contains_str_at(selection.start, &pair.end) {
3261 let pair_start_len = pair.start.len();
3262 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3263 {
3264 selection.start -= pair_start_len;
3265 selection.end += pair.end.len();
3266
3267 return selection;
3268 }
3269 }
3270 }
3271 }
3272
3273 selection
3274 })
3275 .collect();
3276
3277 drop(buffer);
3278 self.change_selections(None, cx, |selections| selections.select(new_selections));
3279 }
3280
3281 /// Iterate the given selections, and for each one, find the smallest surrounding
3282 /// autoclose region. This uses the ordering of the selections and the autoclose
3283 /// regions to avoid repeated comparisons.
3284 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3285 &'a self,
3286 selections: impl IntoIterator<Item = Selection<D>>,
3287 buffer: &'a MultiBufferSnapshot,
3288 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3289 let mut i = 0;
3290 let mut regions = self.autoclose_regions.as_slice();
3291 selections.into_iter().map(move |selection| {
3292 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3293
3294 let mut enclosing = None;
3295 while let Some(pair_state) = regions.get(i) {
3296 if pair_state.range.end.to_offset(buffer) < range.start {
3297 regions = ®ions[i + 1..];
3298 i = 0;
3299 } else if pair_state.range.start.to_offset(buffer) > range.end {
3300 break;
3301 } else {
3302 if pair_state.selection_id == selection.id {
3303 enclosing = Some(pair_state);
3304 }
3305 i += 1;
3306 }
3307 }
3308
3309 (selection.clone(), enclosing)
3310 })
3311 }
3312
3313 /// Remove any autoclose regions that no longer contain their selection.
3314 fn invalidate_autoclose_regions(
3315 &mut self,
3316 mut selections: &[Selection<Anchor>],
3317 buffer: &MultiBufferSnapshot,
3318 ) {
3319 self.autoclose_regions.retain(|state| {
3320 let mut i = 0;
3321 while let Some(selection) = selections.get(i) {
3322 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3323 selections = &selections[1..];
3324 continue;
3325 }
3326 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3327 break;
3328 }
3329 if selection.id == state.selection_id {
3330 return true;
3331 } else {
3332 i += 1;
3333 }
3334 }
3335 false
3336 });
3337 }
3338
3339 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3340 let offset = position.to_offset(buffer);
3341 let (word_range, kind) = buffer.surrounding_word(offset);
3342 if offset > word_range.start && kind == Some(CharKind::Word) {
3343 Some(
3344 buffer
3345 .text_for_range(word_range.start..offset)
3346 .collect::<String>(),
3347 )
3348 } else {
3349 None
3350 }
3351 }
3352
3353 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3354 self.refresh_inlay_hints(
3355 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3356 cx,
3357 );
3358 }
3359
3360 pub fn inlay_hints_enabled(&self) -> bool {
3361 self.inlay_hint_cache.enabled
3362 }
3363
3364 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3365 if self.project.is_none() || self.mode != EditorMode::Full {
3366 return;
3367 }
3368
3369 let reason_description = reason.description();
3370 let ignore_debounce = matches!(
3371 reason,
3372 InlayHintRefreshReason::SettingsChange(_)
3373 | InlayHintRefreshReason::Toggle(_)
3374 | InlayHintRefreshReason::ExcerptsRemoved(_)
3375 );
3376 let (invalidate_cache, required_languages) = match reason {
3377 InlayHintRefreshReason::Toggle(enabled) => {
3378 self.inlay_hint_cache.enabled = enabled;
3379 if enabled {
3380 (InvalidationStrategy::RefreshRequested, None)
3381 } else {
3382 self.inlay_hint_cache.clear();
3383 self.splice_inlays(
3384 self.visible_inlay_hints(cx)
3385 .iter()
3386 .map(|inlay| inlay.id)
3387 .collect(),
3388 Vec::new(),
3389 cx,
3390 );
3391 return;
3392 }
3393 }
3394 InlayHintRefreshReason::SettingsChange(new_settings) => {
3395 match self.inlay_hint_cache.update_settings(
3396 &self.buffer,
3397 new_settings,
3398 self.visible_inlay_hints(cx),
3399 cx,
3400 ) {
3401 ControlFlow::Break(Some(InlaySplice {
3402 to_remove,
3403 to_insert,
3404 })) => {
3405 self.splice_inlays(to_remove, to_insert, cx);
3406 return;
3407 }
3408 ControlFlow::Break(None) => return,
3409 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3410 }
3411 }
3412 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3413 if let Some(InlaySplice {
3414 to_remove,
3415 to_insert,
3416 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3417 {
3418 self.splice_inlays(to_remove, to_insert, cx);
3419 }
3420 return;
3421 }
3422 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3423 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3424 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3425 }
3426 InlayHintRefreshReason::RefreshRequested => {
3427 (InvalidationStrategy::RefreshRequested, None)
3428 }
3429 };
3430
3431 if let Some(InlaySplice {
3432 to_remove,
3433 to_insert,
3434 }) = self.inlay_hint_cache.spawn_hint_refresh(
3435 reason_description,
3436 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3437 invalidate_cache,
3438 ignore_debounce,
3439 cx,
3440 ) {
3441 self.splice_inlays(to_remove, to_insert, cx);
3442 }
3443 }
3444
3445 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3446 self.display_map
3447 .read(cx)
3448 .current_inlays()
3449 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3450 .cloned()
3451 .collect()
3452 }
3453
3454 pub fn excerpts_for_inlay_hints_query(
3455 &self,
3456 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3457 cx: &mut ViewContext<Editor>,
3458 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3459 let Some(project) = self.project.as_ref() else {
3460 return HashMap::default();
3461 };
3462 let project = project.read(cx);
3463 let multi_buffer = self.buffer().read(cx);
3464 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3465 let multi_buffer_visible_start = self
3466 .scroll_manager
3467 .anchor()
3468 .anchor
3469 .to_point(&multi_buffer_snapshot);
3470 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3471 multi_buffer_visible_start
3472 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3473 Bias::Left,
3474 );
3475 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3476 multi_buffer
3477 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3478 .into_iter()
3479 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3480 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3481 let buffer = buffer_handle.read(cx);
3482 let buffer_file = project::File::from_dyn(buffer.file())?;
3483 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3484 let worktree_entry = buffer_worktree
3485 .read(cx)
3486 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3487 if worktree_entry.is_ignored {
3488 return None;
3489 }
3490
3491 let language = buffer.language()?;
3492 if let Some(restrict_to_languages) = restrict_to_languages {
3493 if !restrict_to_languages.contains(language) {
3494 return None;
3495 }
3496 }
3497 Some((
3498 excerpt_id,
3499 (
3500 buffer_handle,
3501 buffer.version().clone(),
3502 excerpt_visible_range,
3503 ),
3504 ))
3505 })
3506 .collect()
3507 }
3508
3509 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3510 TextLayoutDetails {
3511 text_system: cx.text_system().clone(),
3512 editor_style: self.style.clone().unwrap(),
3513 rem_size: cx.rem_size(),
3514 scroll_anchor: self.scroll_manager.anchor(),
3515 visible_rows: self.visible_line_count(),
3516 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3517 }
3518 }
3519
3520 fn splice_inlays(
3521 &self,
3522 to_remove: Vec<InlayId>,
3523 to_insert: Vec<Inlay>,
3524 cx: &mut ViewContext<Self>,
3525 ) {
3526 self.display_map.update(cx, |display_map, cx| {
3527 display_map.splice_inlays(to_remove, to_insert, cx);
3528 });
3529 cx.notify();
3530 }
3531
3532 fn trigger_on_type_formatting(
3533 &self,
3534 input: String,
3535 cx: &mut ViewContext<Self>,
3536 ) -> Option<Task<Result<()>>> {
3537 if input.len() != 1 {
3538 return None;
3539 }
3540
3541 let project = self.project.as_ref()?;
3542 let position = self.selections.newest_anchor().head();
3543 let (buffer, buffer_position) = self
3544 .buffer
3545 .read(cx)
3546 .text_anchor_for_position(position, cx)?;
3547
3548 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3549 // hence we do LSP request & edit on host side only — add formats to host's history.
3550 let push_to_lsp_host_history = true;
3551 // If this is not the host, append its history with new edits.
3552 let push_to_client_history = project.read(cx).is_remote();
3553
3554 let on_type_formatting = project.update(cx, |project, cx| {
3555 project.on_type_format(
3556 buffer.clone(),
3557 buffer_position,
3558 input,
3559 push_to_lsp_host_history,
3560 cx,
3561 )
3562 });
3563 Some(cx.spawn(|editor, mut cx| async move {
3564 if let Some(transaction) = on_type_formatting.await? {
3565 if push_to_client_history {
3566 buffer
3567 .update(&mut cx, |buffer, _| {
3568 buffer.push_transaction(transaction, Instant::now());
3569 })
3570 .ok();
3571 }
3572 editor.update(&mut cx, |editor, cx| {
3573 editor.refresh_document_highlights(cx);
3574 })?;
3575 }
3576 Ok(())
3577 }))
3578 }
3579
3580 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3581 if self.pending_rename.is_some() {
3582 return;
3583 }
3584
3585 let Some(provider) = self.completion_provider.as_ref() else {
3586 return;
3587 };
3588
3589 let position = self.selections.newest_anchor().head();
3590 let (buffer, buffer_position) =
3591 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3592 output
3593 } else {
3594 return;
3595 };
3596
3597 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3598 let completions = provider.completions(&buffer, buffer_position, cx);
3599
3600 let id = post_inc(&mut self.next_completion_id);
3601 let task = cx.spawn(|this, mut cx| {
3602 async move {
3603 let completions = completions.await.log_err();
3604 let menu = if let Some(completions) = completions {
3605 let mut menu = CompletionsMenu {
3606 id,
3607 initial_position: position,
3608 match_candidates: completions
3609 .iter()
3610 .enumerate()
3611 .map(|(id, completion)| {
3612 StringMatchCandidate::new(
3613 id,
3614 completion.label.text[completion.label.filter_range.clone()]
3615 .into(),
3616 )
3617 })
3618 .collect(),
3619 buffer: buffer.clone(),
3620 completions: Arc::new(RwLock::new(completions.into())),
3621 matches: Vec::new().into(),
3622 selected_item: 0,
3623 scroll_handle: UniformListScrollHandle::new(),
3624 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3625 DebouncedDelay::new(),
3626 )),
3627 };
3628 menu.filter(query.as_deref(), cx.background_executor().clone())
3629 .await;
3630
3631 if menu.matches.is_empty() {
3632 None
3633 } else {
3634 this.update(&mut cx, |editor, cx| {
3635 let completions = menu.completions.clone();
3636 let matches = menu.matches.clone();
3637
3638 let delay_ms = EditorSettings::get_global(cx)
3639 .completion_documentation_secondary_query_debounce;
3640 let delay = Duration::from_millis(delay_ms);
3641
3642 editor
3643 .completion_documentation_pre_resolve_debounce
3644 .fire_new(delay, cx, |editor, cx| {
3645 CompletionsMenu::pre_resolve_completion_documentation(
3646 buffer,
3647 completions,
3648 matches,
3649 editor,
3650 cx,
3651 )
3652 });
3653 })
3654 .ok();
3655 Some(menu)
3656 }
3657 } else {
3658 None
3659 };
3660
3661 this.update(&mut cx, |this, cx| {
3662 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3663
3664 let mut context_menu = this.context_menu.write();
3665 match context_menu.as_ref() {
3666 None => {}
3667
3668 Some(ContextMenu::Completions(prev_menu)) => {
3669 if prev_menu.id > id {
3670 return;
3671 }
3672 }
3673
3674 _ => return,
3675 }
3676
3677 if this.focus_handle.is_focused(cx) && menu.is_some() {
3678 let menu = menu.unwrap();
3679 *context_menu = Some(ContextMenu::Completions(menu));
3680 drop(context_menu);
3681 this.discard_inline_completion(cx);
3682 cx.notify();
3683 } else if this.completion_tasks.len() <= 1 {
3684 // If there are no more completion tasks and the last menu was
3685 // empty, we should hide it. If it was already hidden, we should
3686 // also show the copilot completion when available.
3687 drop(context_menu);
3688 if this.hide_context_menu(cx).is_none() {
3689 this.update_visible_inline_completion(cx);
3690 }
3691 }
3692 })?;
3693
3694 Ok::<_, anyhow::Error>(())
3695 }
3696 .log_err()
3697 });
3698
3699 self.completion_tasks.push((id, task));
3700 }
3701
3702 pub fn confirm_completion(
3703 &mut self,
3704 action: &ConfirmCompletion,
3705 cx: &mut ViewContext<Self>,
3706 ) -> Option<Task<Result<()>>> {
3707 use language::ToOffset as _;
3708
3709 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3710 menu
3711 } else {
3712 return None;
3713 };
3714
3715 let mat = completions_menu
3716 .matches
3717 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3718 let buffer_handle = completions_menu.buffer;
3719 let completions = completions_menu.completions.read();
3720 let completion = completions.get(mat.candidate_id)?;
3721 cx.stop_propagation();
3722
3723 let snippet;
3724 let text;
3725 if completion.is_snippet() {
3726 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3727 text = snippet.as_ref().unwrap().text.clone();
3728 } else {
3729 snippet = None;
3730 text = completion.new_text.clone();
3731 };
3732 let selections = self.selections.all::<usize>(cx);
3733 let buffer = buffer_handle.read(cx);
3734 let old_range = completion.old_range.to_offset(buffer);
3735 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3736
3737 let newest_selection = self.selections.newest_anchor();
3738 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3739 return None;
3740 }
3741
3742 let lookbehind = newest_selection
3743 .start
3744 .text_anchor
3745 .to_offset(buffer)
3746 .saturating_sub(old_range.start);
3747 let lookahead = old_range
3748 .end
3749 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3750 let mut common_prefix_len = old_text
3751 .bytes()
3752 .zip(text.bytes())
3753 .take_while(|(a, b)| a == b)
3754 .count();
3755
3756 let snapshot = self.buffer.read(cx).snapshot(cx);
3757 let mut range_to_replace: Option<Range<isize>> = None;
3758 let mut ranges = Vec::new();
3759 for selection in &selections {
3760 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3761 let start = selection.start.saturating_sub(lookbehind);
3762 let end = selection.end + lookahead;
3763 if selection.id == newest_selection.id {
3764 range_to_replace = Some(
3765 ((start + common_prefix_len) as isize - selection.start as isize)
3766 ..(end as isize - selection.start as isize),
3767 );
3768 }
3769 ranges.push(start + common_prefix_len..end);
3770 } else {
3771 common_prefix_len = 0;
3772 ranges.clear();
3773 ranges.extend(selections.iter().map(|s| {
3774 if s.id == newest_selection.id {
3775 range_to_replace = Some(
3776 old_range.start.to_offset_utf16(&snapshot).0 as isize
3777 - selection.start as isize
3778 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3779 - selection.start as isize,
3780 );
3781 old_range.clone()
3782 } else {
3783 s.start..s.end
3784 }
3785 }));
3786 break;
3787 }
3788 }
3789 let text = &text[common_prefix_len..];
3790
3791 cx.emit(EditorEvent::InputHandled {
3792 utf16_range_to_replace: range_to_replace,
3793 text: text.into(),
3794 });
3795
3796 self.transact(cx, |this, cx| {
3797 if let Some(mut snippet) = snippet {
3798 snippet.text = text.to_string();
3799 for tabstop in snippet.tabstops.iter_mut().flatten() {
3800 tabstop.start -= common_prefix_len as isize;
3801 tabstop.end -= common_prefix_len as isize;
3802 }
3803
3804 this.insert_snippet(&ranges, snippet, cx).log_err();
3805 } else {
3806 this.buffer.update(cx, |buffer, cx| {
3807 buffer.edit(
3808 ranges.iter().map(|range| (range.clone(), text)),
3809 this.autoindent_mode.clone(),
3810 cx,
3811 );
3812 });
3813 }
3814
3815 this.refresh_inline_completion(true, cx);
3816 });
3817
3818 let provider = self.completion_provider.as_ref()?;
3819 let apply_edits = provider.apply_additional_edits_for_completion(
3820 buffer_handle,
3821 completion.clone(),
3822 true,
3823 cx,
3824 );
3825 Some(cx.foreground_executor().spawn(async move {
3826 apply_edits.await?;
3827 Ok(())
3828 }))
3829 }
3830
3831 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3832 let mut context_menu = self.context_menu.write();
3833 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3834 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3835 // Toggle if we're selecting the same one
3836 *context_menu = None;
3837 cx.notify();
3838 return;
3839 } else {
3840 // Otherwise, clear it and start a new one
3841 *context_menu = None;
3842 cx.notify();
3843 }
3844 }
3845 drop(context_menu);
3846 let snapshot = self.snapshot(cx);
3847 let deployed_from_indicator = action.deployed_from_indicator;
3848 let mut task = self.code_actions_task.take();
3849 let action = action.clone();
3850 cx.spawn(|this, mut cx| async move {
3851 while let Some(prev_task) = task {
3852 prev_task.await;
3853 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3854 }
3855
3856 let spawned_test_task = this.update(&mut cx, |this, cx| {
3857 if this.focus_handle.is_focused(cx) {
3858 let multibuffer_point = action
3859 .deployed_from_indicator
3860 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3861 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head());
3862 let (buffer, buffer_row) = snapshot
3863 .buffer_snapshot
3864 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3865 .and_then(|(buffer_snapshot, range)| {
3866 this.buffer
3867 .read(cx)
3868 .buffer(buffer_snapshot.remote_id())
3869 .map(|buffer| (buffer, range.start.row))
3870 })?;
3871 let (_, code_actions) = this
3872 .available_code_actions
3873 .clone()
3874 .and_then(|(location, code_actions)| {
3875 let snapshot = location.buffer.read(cx).snapshot();
3876 let point_range = location.range.to_point(&snapshot);
3877 let point_range = point_range.start.row..=point_range.end.row;
3878 if point_range.contains(&buffer_row) {
3879 Some((location, code_actions))
3880 } else {
3881 None
3882 }
3883 })
3884 .unzip();
3885 let buffer_id = buffer.read(cx).remote_id();
3886 let tasks = this
3887 .tasks
3888 .get(&(buffer_id, buffer_row))
3889 .map(|t| Arc::new(t.to_owned()));
3890 if tasks.is_none() && code_actions.is_none() {
3891 return None;
3892 }
3893
3894 this.completion_tasks.clear();
3895 this.discard_inline_completion(cx);
3896 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3897 |(tasks, (workspace, _))| {
3898 let position = Point::new(buffer_row, tasks.1.column);
3899 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3900 let location = Location {
3901 buffer: buffer.clone(),
3902 range: range_start..range_start,
3903 };
3904 workspace
3905 .update(cx, |workspace, cx| {
3906 tasks::task_context_for_location(workspace, location, cx)
3907 })
3908 .ok()
3909 .flatten()
3910 },
3911 );
3912 let tasks = tasks.zip(task_context).map(|(tasks, mut task_context)| {
3913 // Fill in the environmental variables from the tree-sitter captures
3914 let mut additional_task_variables = TaskVariables::default();
3915 for (capture_name, value) in tasks.1.extra_variables.clone() {
3916 additional_task_variables.insert(
3917 task::VariableName::Custom(capture_name.into()),
3918 value.clone(),
3919 );
3920 }
3921 task_context
3922 .task_variables
3923 .extend(additional_task_variables);
3924
3925 Arc::new(ResolvedTasks {
3926 templates: tasks
3927 .1
3928 .templates
3929 .iter()
3930 .filter_map(|(kind, template)| {
3931 template
3932 .resolve_task(&kind.to_id_base(), &task_context)
3933 .map(|task| (kind.clone(), task))
3934 })
3935 .collect(),
3936 position: snapshot
3937 .buffer_snapshot
3938 .anchor_before(Point::new(multibuffer_point.row, tasks.1.column)),
3939 })
3940 });
3941 let spawn_straight_away = tasks
3942 .as_ref()
3943 .map_or(false, |tasks| tasks.templates.len() == 1)
3944 && code_actions
3945 .as_ref()
3946 .map_or(true, |actions| actions.is_empty());
3947 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3948 buffer,
3949 actions: CodeActionContents {
3950 tasks,
3951 actions: code_actions,
3952 },
3953 selected_item: Default::default(),
3954 scroll_handle: UniformListScrollHandle::default(),
3955 deployed_from_indicator,
3956 }));
3957 if spawn_straight_away {
3958 if let Some(task) =
3959 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3960 {
3961 cx.notify();
3962 return Some(task);
3963 }
3964 }
3965 cx.notify();
3966 }
3967 Some(Task::ready(Ok(())))
3968 })?;
3969 if let Some(task) = spawned_test_task {
3970 task.await?;
3971 }
3972
3973 Ok::<_, anyhow::Error>(())
3974 })
3975 .detach_and_log_err(cx);
3976 }
3977
3978 pub fn confirm_code_action(
3979 &mut self,
3980 action: &ConfirmCodeAction,
3981 cx: &mut ViewContext<Self>,
3982 ) -> Option<Task<Result<()>>> {
3983 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3984 menu
3985 } else {
3986 return None;
3987 };
3988 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3989 let action = actions_menu.actions.get(action_ix)?;
3990 let title = action.label();
3991 let buffer = actions_menu.buffer;
3992 let workspace = self.workspace()?;
3993
3994 match action {
3995 CodeActionsItem::Task(task_source_kind, resolved_task) => {
3996 workspace.update(cx, |workspace, cx| {
3997 workspace::tasks::schedule_resolved_task(
3998 workspace,
3999 task_source_kind,
4000 resolved_task,
4001 false,
4002 cx,
4003 );
4004
4005 Some(Task::ready(Ok(())))
4006 })
4007 }
4008 CodeActionsItem::CodeAction(action) => {
4009 let apply_code_actions = workspace
4010 .read(cx)
4011 .project()
4012 .clone()
4013 .update(cx, |project, cx| {
4014 project.apply_code_action(buffer, action, true, cx)
4015 });
4016 let workspace = workspace.downgrade();
4017 Some(cx.spawn(|editor, cx| async move {
4018 let project_transaction = apply_code_actions.await?;
4019 Self::open_project_transaction(
4020 &editor,
4021 workspace,
4022 project_transaction,
4023 title,
4024 cx,
4025 )
4026 .await
4027 }))
4028 }
4029 }
4030 }
4031
4032 async fn open_project_transaction(
4033 this: &WeakView<Editor>,
4034 workspace: WeakView<Workspace>,
4035 transaction: ProjectTransaction,
4036 title: String,
4037 mut cx: AsyncWindowContext,
4038 ) -> Result<()> {
4039 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4040
4041 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4042 cx.update(|cx| {
4043 entries.sort_unstable_by_key(|(buffer, _)| {
4044 buffer.read(cx).file().map(|f| f.path().clone())
4045 });
4046 })?;
4047
4048 // If the project transaction's edits are all contained within this editor, then
4049 // avoid opening a new editor to display them.
4050
4051 if let Some((buffer, transaction)) = entries.first() {
4052 if entries.len() == 1 {
4053 let excerpt = this.update(&mut cx, |editor, cx| {
4054 editor
4055 .buffer()
4056 .read(cx)
4057 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4058 })?;
4059 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4060 if excerpted_buffer == *buffer {
4061 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4062 let excerpt_range = excerpt_range.to_offset(buffer);
4063 buffer
4064 .edited_ranges_for_transaction::<usize>(transaction)
4065 .all(|range| {
4066 excerpt_range.start <= range.start
4067 && excerpt_range.end >= range.end
4068 })
4069 })?;
4070
4071 if all_edits_within_excerpt {
4072 return Ok(());
4073 }
4074 }
4075 }
4076 }
4077 } else {
4078 return Ok(());
4079 }
4080
4081 let mut ranges_to_highlight = Vec::new();
4082 let excerpt_buffer = cx.new_model(|cx| {
4083 let mut multibuffer =
4084 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4085 for (buffer_handle, transaction) in &entries {
4086 let buffer = buffer_handle.read(cx);
4087 ranges_to_highlight.extend(
4088 multibuffer.push_excerpts_with_context_lines(
4089 buffer_handle.clone(),
4090 buffer
4091 .edited_ranges_for_transaction::<usize>(transaction)
4092 .collect(),
4093 DEFAULT_MULTIBUFFER_CONTEXT,
4094 cx,
4095 ),
4096 );
4097 }
4098 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4099 multibuffer
4100 })?;
4101
4102 workspace.update(&mut cx, |workspace, cx| {
4103 let project = workspace.project().clone();
4104 let editor =
4105 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4106 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4107 editor.update(cx, |editor, cx| {
4108 editor.highlight_background::<Self>(
4109 &ranges_to_highlight,
4110 |theme| theme.editor_highlighted_line_background,
4111 cx,
4112 );
4113 });
4114 })?;
4115
4116 Ok(())
4117 }
4118
4119 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4120 let project = self.project.clone()?;
4121 let buffer = self.buffer.read(cx);
4122 let newest_selection = self.selections.newest_anchor().clone();
4123 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4124 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4125 if start_buffer != end_buffer {
4126 return None;
4127 }
4128
4129 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4130 cx.background_executor()
4131 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4132 .await;
4133
4134 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4135 project.code_actions(&start_buffer, start..end, cx)
4136 }) {
4137 code_actions.await
4138 } else {
4139 Vec::new()
4140 };
4141
4142 this.update(&mut cx, |this, cx| {
4143 this.available_code_actions = if actions.is_empty() {
4144 None
4145 } else {
4146 Some((
4147 Location {
4148 buffer: start_buffer,
4149 range: start..end,
4150 },
4151 actions.into(),
4152 ))
4153 };
4154 cx.notify();
4155 })
4156 .log_err();
4157 }));
4158 None
4159 }
4160
4161 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4162 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4163 self.show_git_blame_inline = false;
4164
4165 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4166 cx.background_executor().timer(delay).await;
4167
4168 this.update(&mut cx, |this, cx| {
4169 this.show_git_blame_inline = true;
4170 cx.notify();
4171 })
4172 .log_err();
4173 }));
4174 }
4175 }
4176
4177 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4178 if self.pending_rename.is_some() {
4179 return None;
4180 }
4181
4182 let project = self.project.clone()?;
4183 let buffer = self.buffer.read(cx);
4184 let newest_selection = self.selections.newest_anchor().clone();
4185 let cursor_position = newest_selection.head();
4186 let (cursor_buffer, cursor_buffer_position) =
4187 buffer.text_anchor_for_position(cursor_position, cx)?;
4188 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4189 if cursor_buffer != tail_buffer {
4190 return None;
4191 }
4192
4193 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4194 cx.background_executor()
4195 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4196 .await;
4197
4198 let highlights = if let Some(highlights) = project
4199 .update(&mut cx, |project, cx| {
4200 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4201 })
4202 .log_err()
4203 {
4204 highlights.await.log_err()
4205 } else {
4206 None
4207 };
4208
4209 if let Some(highlights) = highlights {
4210 this.update(&mut cx, |this, cx| {
4211 if this.pending_rename.is_some() {
4212 return;
4213 }
4214
4215 let buffer_id = cursor_position.buffer_id;
4216 let buffer = this.buffer.read(cx);
4217 if !buffer
4218 .text_anchor_for_position(cursor_position, cx)
4219 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4220 {
4221 return;
4222 }
4223
4224 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4225 let mut write_ranges = Vec::new();
4226 let mut read_ranges = Vec::new();
4227 for highlight in highlights {
4228 for (excerpt_id, excerpt_range) in
4229 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4230 {
4231 let start = highlight
4232 .range
4233 .start
4234 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4235 let end = highlight
4236 .range
4237 .end
4238 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4239 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4240 continue;
4241 }
4242
4243 let range = Anchor {
4244 buffer_id,
4245 excerpt_id: excerpt_id,
4246 text_anchor: start,
4247 }..Anchor {
4248 buffer_id,
4249 excerpt_id,
4250 text_anchor: end,
4251 };
4252 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4253 write_ranges.push(range);
4254 } else {
4255 read_ranges.push(range);
4256 }
4257 }
4258 }
4259
4260 this.highlight_background::<DocumentHighlightRead>(
4261 &read_ranges,
4262 |theme| theme.editor_document_highlight_read_background,
4263 cx,
4264 );
4265 this.highlight_background::<DocumentHighlightWrite>(
4266 &write_ranges,
4267 |theme| theme.editor_document_highlight_write_background,
4268 cx,
4269 );
4270 cx.notify();
4271 })
4272 .log_err();
4273 }
4274 }));
4275 None
4276 }
4277
4278 fn refresh_inline_completion(
4279 &mut self,
4280 debounce: bool,
4281 cx: &mut ViewContext<Self>,
4282 ) -> Option<()> {
4283 let provider = self.inline_completion_provider()?;
4284 let cursor = self.selections.newest_anchor().head();
4285 let (buffer, cursor_buffer_position) =
4286 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4287 if !self.show_inline_completions
4288 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4289 {
4290 self.discard_inline_completion(cx);
4291 return None;
4292 }
4293
4294 self.update_visible_inline_completion(cx);
4295 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4296 Some(())
4297 }
4298
4299 fn cycle_inline_completion(
4300 &mut self,
4301 direction: Direction,
4302 cx: &mut ViewContext<Self>,
4303 ) -> Option<()> {
4304 let provider = self.inline_completion_provider()?;
4305 let cursor = self.selections.newest_anchor().head();
4306 let (buffer, cursor_buffer_position) =
4307 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4308 if !self.show_inline_completions
4309 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4310 {
4311 return None;
4312 }
4313
4314 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4315 self.update_visible_inline_completion(cx);
4316
4317 Some(())
4318 }
4319
4320 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4321 if !self.has_active_inline_completion(cx) {
4322 self.refresh_inline_completion(false, cx);
4323 return;
4324 }
4325
4326 self.update_visible_inline_completion(cx);
4327 }
4328
4329 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4330 self.show_cursor_names(cx);
4331 }
4332
4333 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4334 self.show_cursor_names = true;
4335 cx.notify();
4336 cx.spawn(|this, mut cx| async move {
4337 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4338 this.update(&mut cx, |this, cx| {
4339 this.show_cursor_names = false;
4340 cx.notify()
4341 })
4342 .ok()
4343 })
4344 .detach();
4345 }
4346
4347 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4348 if self.has_active_inline_completion(cx) {
4349 self.cycle_inline_completion(Direction::Next, cx);
4350 } else {
4351 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4352 if is_copilot_disabled {
4353 cx.propagate();
4354 }
4355 }
4356 }
4357
4358 pub fn previous_inline_completion(
4359 &mut self,
4360 _: &PreviousInlineCompletion,
4361 cx: &mut ViewContext<Self>,
4362 ) {
4363 if self.has_active_inline_completion(cx) {
4364 self.cycle_inline_completion(Direction::Prev, cx);
4365 } else {
4366 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4367 if is_copilot_disabled {
4368 cx.propagate();
4369 }
4370 }
4371 }
4372
4373 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4374 if let Some(completion) = self.take_active_inline_completion(cx) {
4375 if let Some(provider) = self.inline_completion_provider() {
4376 provider.accept(cx);
4377 }
4378
4379 cx.emit(EditorEvent::InputHandled {
4380 utf16_range_to_replace: None,
4381 text: completion.text.to_string().into(),
4382 });
4383 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4384 self.refresh_inline_completion(true, cx);
4385 cx.notify();
4386 true
4387 } else {
4388 false
4389 }
4390 }
4391
4392 pub fn accept_partial_inline_completion(
4393 &mut self,
4394 _: &AcceptPartialInlineCompletion,
4395 cx: &mut ViewContext<Self>,
4396 ) {
4397 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4398 if let Some(completion) = self.take_active_inline_completion(cx) {
4399 let mut partial_completion = completion
4400 .text
4401 .chars()
4402 .by_ref()
4403 .take_while(|c| c.is_alphabetic())
4404 .collect::<String>();
4405 if partial_completion.is_empty() {
4406 partial_completion = completion
4407 .text
4408 .chars()
4409 .by_ref()
4410 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4411 .collect::<String>();
4412 }
4413
4414 cx.emit(EditorEvent::InputHandled {
4415 utf16_range_to_replace: None,
4416 text: partial_completion.clone().into(),
4417 });
4418 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4419 self.refresh_inline_completion(true, cx);
4420 cx.notify();
4421 }
4422 }
4423 }
4424
4425 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4426 if let Some(provider) = self.inline_completion_provider() {
4427 provider.discard(cx);
4428 }
4429
4430 self.take_active_inline_completion(cx).is_some()
4431 }
4432
4433 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4434 if let Some(completion) = self.active_inline_completion.as_ref() {
4435 let buffer = self.buffer.read(cx).read(cx);
4436 completion.position.is_valid(&buffer)
4437 } else {
4438 false
4439 }
4440 }
4441
4442 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4443 let completion = self.active_inline_completion.take()?;
4444 self.display_map.update(cx, |map, cx| {
4445 map.splice_inlays(vec![completion.id], Default::default(), cx);
4446 });
4447 let buffer = self.buffer.read(cx).read(cx);
4448
4449 if completion.position.is_valid(&buffer) {
4450 Some(completion)
4451 } else {
4452 None
4453 }
4454 }
4455
4456 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4457 let selection = self.selections.newest_anchor();
4458 let cursor = selection.head();
4459
4460 if self.context_menu.read().is_none()
4461 && self.completion_tasks.is_empty()
4462 && selection.start == selection.end
4463 {
4464 if let Some(provider) = self.inline_completion_provider() {
4465 if let Some((buffer, cursor_buffer_position)) =
4466 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4467 {
4468 if let Some(text) =
4469 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4470 {
4471 let text = Rope::from(text);
4472 let mut to_remove = Vec::new();
4473 if let Some(completion) = self.active_inline_completion.take() {
4474 to_remove.push(completion.id);
4475 }
4476
4477 let completion_inlay =
4478 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4479 self.active_inline_completion = Some(completion_inlay.clone());
4480 self.display_map.update(cx, move |map, cx| {
4481 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4482 });
4483 cx.notify();
4484 return;
4485 }
4486 }
4487 }
4488 }
4489
4490 self.discard_inline_completion(cx);
4491 }
4492
4493 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4494 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4495 }
4496
4497 fn render_code_actions_indicator(
4498 &self,
4499 _style: &EditorStyle,
4500 row: DisplayRow,
4501 is_active: bool,
4502 cx: &mut ViewContext<Self>,
4503 ) -> Option<IconButton> {
4504 if self.available_code_actions.is_some() {
4505 Some(
4506 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4507 .icon_size(IconSize::XSmall)
4508 .size(ui::ButtonSize::None)
4509 .icon_color(Color::Muted)
4510 .selected(is_active)
4511 .on_click(cx.listener(move |editor, _e, cx| {
4512 editor.focus(cx);
4513 editor.toggle_code_actions(
4514 &ToggleCodeActions {
4515 deployed_from_indicator: Some(row),
4516 },
4517 cx,
4518 );
4519 })),
4520 )
4521 } else {
4522 None
4523 }
4524 }
4525
4526 fn clear_tasks(&mut self) {
4527 self.tasks.clear()
4528 }
4529
4530 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: (usize, RunnableTasks)) {
4531 if let Some(_) = self.tasks.insert(key, value) {
4532 // This case should hopefully be rare, but just in case...
4533 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4534 }
4535 }
4536
4537 fn render_run_indicator(
4538 &self,
4539 _style: &EditorStyle,
4540 is_active: bool,
4541 row: DisplayRow,
4542 cx: &mut ViewContext<Self>,
4543 ) -> IconButton {
4544 IconButton::new("run_indicator", ui::IconName::Play)
4545 .icon_size(IconSize::XSmall)
4546 .size(ui::ButtonSize::None)
4547 .icon_color(Color::Muted)
4548 .selected(is_active)
4549 .on_click(cx.listener(move |editor, _e, cx| {
4550 editor.focus(cx);
4551 editor.toggle_code_actions(
4552 &ToggleCodeActions {
4553 deployed_from_indicator: Some(row),
4554 },
4555 cx,
4556 );
4557 }))
4558 }
4559
4560 pub fn render_fold_indicators(
4561 &mut self,
4562 fold_data: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
4563 _style: &EditorStyle,
4564 gutter_hovered: bool,
4565 _line_height: Pixels,
4566 _gutter_margin: Pixels,
4567 cx: &mut ViewContext<Self>,
4568 ) -> Vec<Option<AnyElement>> {
4569 fold_data
4570 .iter()
4571 .enumerate()
4572 .map(|(ix, fold_data)| {
4573 fold_data
4574 .map(|(fold_status, buffer_row, active)| {
4575 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4576 IconButton::new(ix, ui::IconName::ChevronDown)
4577 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4578 FoldStatus::Folded => {
4579 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4580 }
4581 FoldStatus::Foldable => {
4582 this.fold_at(&FoldAt { buffer_row }, cx);
4583 }
4584 }))
4585 .icon_color(ui::Color::Muted)
4586 .icon_size(ui::IconSize::Small)
4587 .selected(fold_status == FoldStatus::Folded)
4588 .selected_icon(ui::IconName::ChevronRight)
4589 .size(ui::ButtonSize::None)
4590 .into_any_element()
4591 })
4592 })
4593 .flatten()
4594 })
4595 .collect()
4596 }
4597
4598 pub fn context_menu_visible(&self) -> bool {
4599 self.context_menu
4600 .read()
4601 .as_ref()
4602 .map_or(false, |menu| menu.visible())
4603 }
4604
4605 fn render_context_menu(
4606 &self,
4607 cursor_position: DisplayPoint,
4608 style: &EditorStyle,
4609 max_height: Pixels,
4610 cx: &mut ViewContext<Editor>,
4611 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4612 self.context_menu.read().as_ref().map(|menu| {
4613 menu.render(
4614 cursor_position,
4615 style,
4616 max_height,
4617 self.workspace.as_ref().map(|(w, _)| w.clone()),
4618 cx,
4619 )
4620 })
4621 }
4622
4623 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4624 cx.notify();
4625 self.completion_tasks.clear();
4626 let context_menu = self.context_menu.write().take();
4627 if context_menu.is_some() {
4628 self.update_visible_inline_completion(cx);
4629 }
4630 context_menu
4631 }
4632
4633 pub fn insert_snippet(
4634 &mut self,
4635 insertion_ranges: &[Range<usize>],
4636 snippet: Snippet,
4637 cx: &mut ViewContext<Self>,
4638 ) -> Result<()> {
4639 struct Tabstop<T> {
4640 is_end_tabstop: bool,
4641 ranges: Vec<Range<T>>,
4642 }
4643
4644 let tabstops = self.buffer.update(cx, |buffer, cx| {
4645 let snippet_text: Arc<str> = snippet.text.clone().into();
4646 buffer.edit(
4647 insertion_ranges
4648 .iter()
4649 .cloned()
4650 .map(|range| (range, snippet_text.clone())),
4651 Some(AutoindentMode::EachLine),
4652 cx,
4653 );
4654
4655 let snapshot = &*buffer.read(cx);
4656 let snippet = &snippet;
4657 snippet
4658 .tabstops
4659 .iter()
4660 .map(|tabstop| {
4661 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4662 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4663 });
4664 let mut tabstop_ranges = tabstop
4665 .iter()
4666 .flat_map(|tabstop_range| {
4667 let mut delta = 0_isize;
4668 insertion_ranges.iter().map(move |insertion_range| {
4669 let insertion_start = insertion_range.start as isize + delta;
4670 delta +=
4671 snippet.text.len() as isize - insertion_range.len() as isize;
4672
4673 let start = snapshot.anchor_before(
4674 (insertion_start + tabstop_range.start) as usize,
4675 );
4676 let end = snapshot
4677 .anchor_after((insertion_start + tabstop_range.end) as usize);
4678 start..end
4679 })
4680 })
4681 .collect::<Vec<_>>();
4682 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4683
4684 Tabstop {
4685 is_end_tabstop,
4686 ranges: tabstop_ranges,
4687 }
4688 })
4689 .collect::<Vec<_>>()
4690 });
4691
4692 if let Some(tabstop) = tabstops.first() {
4693 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4694 s.select_ranges(tabstop.ranges.iter().cloned());
4695 });
4696
4697 // If we're already at the last tabstop and it's at the end of the snippet,
4698 // we're done, we don't need to keep the state around.
4699 if !tabstop.is_end_tabstop {
4700 let ranges = tabstops
4701 .into_iter()
4702 .map(|tabstop| tabstop.ranges)
4703 .collect::<Vec<_>>();
4704 self.snippet_stack.push(SnippetState {
4705 active_index: 0,
4706 ranges,
4707 });
4708 }
4709
4710 // Check whether the just-entered snippet ends with an auto-closable bracket.
4711 if self.autoclose_regions.is_empty() {
4712 let snapshot = self.buffer.read(cx).snapshot(cx);
4713 for selection in &mut self.selections.all::<Point>(cx) {
4714 let selection_head = selection.head();
4715 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4716 continue;
4717 };
4718
4719 let mut bracket_pair = None;
4720 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4721 let prev_chars = snapshot
4722 .reversed_chars_at(selection_head)
4723 .collect::<String>();
4724 for (pair, enabled) in scope.brackets() {
4725 if enabled
4726 && pair.close
4727 && prev_chars.starts_with(pair.start.as_str())
4728 && next_chars.starts_with(pair.end.as_str())
4729 {
4730 bracket_pair = Some(pair.clone());
4731 break;
4732 }
4733 }
4734 if let Some(pair) = bracket_pair {
4735 let start = snapshot.anchor_after(selection_head);
4736 let end = snapshot.anchor_after(selection_head);
4737 self.autoclose_regions.push(AutocloseRegion {
4738 selection_id: selection.id,
4739 range: start..end,
4740 pair,
4741 });
4742 }
4743 }
4744 }
4745 }
4746 Ok(())
4747 }
4748
4749 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4750 self.move_to_snippet_tabstop(Bias::Right, cx)
4751 }
4752
4753 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4754 self.move_to_snippet_tabstop(Bias::Left, cx)
4755 }
4756
4757 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4758 if let Some(mut snippet) = self.snippet_stack.pop() {
4759 match bias {
4760 Bias::Left => {
4761 if snippet.active_index > 0 {
4762 snippet.active_index -= 1;
4763 } else {
4764 self.snippet_stack.push(snippet);
4765 return false;
4766 }
4767 }
4768 Bias::Right => {
4769 if snippet.active_index + 1 < snippet.ranges.len() {
4770 snippet.active_index += 1;
4771 } else {
4772 self.snippet_stack.push(snippet);
4773 return false;
4774 }
4775 }
4776 }
4777 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4778 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4779 s.select_anchor_ranges(current_ranges.iter().cloned())
4780 });
4781 // If snippet state is not at the last tabstop, push it back on the stack
4782 if snippet.active_index + 1 < snippet.ranges.len() {
4783 self.snippet_stack.push(snippet);
4784 }
4785 return true;
4786 }
4787 }
4788
4789 false
4790 }
4791
4792 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4793 self.transact(cx, |this, cx| {
4794 this.select_all(&SelectAll, cx);
4795 this.insert("", cx);
4796 });
4797 }
4798
4799 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4800 self.transact(cx, |this, cx| {
4801 this.select_autoclose_pair(cx);
4802 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4803 if !this.selections.line_mode {
4804 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4805 for selection in &mut selections {
4806 if selection.is_empty() {
4807 let old_head = selection.head();
4808 let mut new_head =
4809 movement::left(&display_map, old_head.to_display_point(&display_map))
4810 .to_point(&display_map);
4811 if let Some((buffer, line_buffer_range)) = display_map
4812 .buffer_snapshot
4813 .buffer_line_for_row(MultiBufferRow(old_head.row))
4814 {
4815 let indent_size =
4816 buffer.indent_size_for_line(line_buffer_range.start.row);
4817 let indent_len = match indent_size.kind {
4818 IndentKind::Space => {
4819 buffer.settings_at(line_buffer_range.start, cx).tab_size
4820 }
4821 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4822 };
4823 if old_head.column <= indent_size.len && old_head.column > 0 {
4824 let indent_len = indent_len.get();
4825 new_head = cmp::min(
4826 new_head,
4827 MultiBufferPoint::new(
4828 old_head.row,
4829 ((old_head.column - 1) / indent_len) * indent_len,
4830 ),
4831 );
4832 }
4833 }
4834
4835 selection.set_head(new_head, SelectionGoal::None);
4836 }
4837 }
4838 }
4839
4840 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4841 this.insert("", cx);
4842 this.refresh_inline_completion(true, cx);
4843 });
4844 }
4845
4846 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4847 self.transact(cx, |this, cx| {
4848 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4849 let line_mode = s.line_mode;
4850 s.move_with(|map, selection| {
4851 if selection.is_empty() && !line_mode {
4852 let cursor = movement::right(map, selection.head());
4853 selection.end = cursor;
4854 selection.reversed = true;
4855 selection.goal = SelectionGoal::None;
4856 }
4857 })
4858 });
4859 this.insert("", cx);
4860 this.refresh_inline_completion(true, cx);
4861 });
4862 }
4863
4864 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4865 if self.move_to_prev_snippet_tabstop(cx) {
4866 return;
4867 }
4868
4869 self.outdent(&Outdent, cx);
4870 }
4871
4872 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4873 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4874 return;
4875 }
4876
4877 let mut selections = self.selections.all_adjusted(cx);
4878 let buffer = self.buffer.read(cx);
4879 let snapshot = buffer.snapshot(cx);
4880 let rows_iter = selections.iter().map(|s| s.head().row);
4881 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4882
4883 let mut edits = Vec::new();
4884 let mut prev_edited_row = 0;
4885 let mut row_delta = 0;
4886 for selection in &mut selections {
4887 if selection.start.row != prev_edited_row {
4888 row_delta = 0;
4889 }
4890 prev_edited_row = selection.end.row;
4891
4892 // If the selection is non-empty, then increase the indentation of the selected lines.
4893 if !selection.is_empty() {
4894 row_delta =
4895 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4896 continue;
4897 }
4898
4899 // If the selection is empty and the cursor is in the leading whitespace before the
4900 // suggested indentation, then auto-indent the line.
4901 let cursor = selection.head();
4902 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4903 if let Some(suggested_indent) =
4904 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4905 {
4906 if cursor.column < suggested_indent.len
4907 && cursor.column <= current_indent.len
4908 && current_indent.len <= suggested_indent.len
4909 {
4910 selection.start = Point::new(cursor.row, suggested_indent.len);
4911 selection.end = selection.start;
4912 if row_delta == 0 {
4913 edits.extend(Buffer::edit_for_indent_size_adjustment(
4914 cursor.row,
4915 current_indent,
4916 suggested_indent,
4917 ));
4918 row_delta = suggested_indent.len - current_indent.len;
4919 }
4920 continue;
4921 }
4922 }
4923
4924 // Accept copilot completion if there is only one selection and the cursor is not
4925 // in the leading whitespace.
4926 if self.selections.count() == 1
4927 && cursor.column >= current_indent.len
4928 && self.has_active_inline_completion(cx)
4929 {
4930 self.accept_inline_completion(cx);
4931 return;
4932 }
4933
4934 // Otherwise, insert a hard or soft tab.
4935 let settings = buffer.settings_at(cursor, cx);
4936 let tab_size = if settings.hard_tabs {
4937 IndentSize::tab()
4938 } else {
4939 let tab_size = settings.tab_size.get();
4940 let char_column = snapshot
4941 .text_for_range(Point::new(cursor.row, 0)..cursor)
4942 .flat_map(str::chars)
4943 .count()
4944 + row_delta as usize;
4945 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4946 IndentSize::spaces(chars_to_next_tab_stop)
4947 };
4948 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4949 selection.end = selection.start;
4950 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4951 row_delta += tab_size.len;
4952 }
4953
4954 self.transact(cx, |this, cx| {
4955 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4956 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4957 this.refresh_inline_completion(true, cx);
4958 });
4959 }
4960
4961 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4962 if self.read_only(cx) {
4963 return;
4964 }
4965 let mut selections = self.selections.all::<Point>(cx);
4966 let mut prev_edited_row = 0;
4967 let mut row_delta = 0;
4968 let mut edits = Vec::new();
4969 let buffer = self.buffer.read(cx);
4970 let snapshot = buffer.snapshot(cx);
4971 for selection in &mut selections {
4972 if selection.start.row != prev_edited_row {
4973 row_delta = 0;
4974 }
4975 prev_edited_row = selection.end.row;
4976
4977 row_delta =
4978 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4979 }
4980
4981 self.transact(cx, |this, cx| {
4982 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4983 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4984 });
4985 }
4986
4987 fn indent_selection(
4988 buffer: &MultiBuffer,
4989 snapshot: &MultiBufferSnapshot,
4990 selection: &mut Selection<Point>,
4991 edits: &mut Vec<(Range<Point>, String)>,
4992 delta_for_start_row: u32,
4993 cx: &AppContext,
4994 ) -> u32 {
4995 let settings = buffer.settings_at(selection.start, cx);
4996 let tab_size = settings.tab_size.get();
4997 let indent_kind = if settings.hard_tabs {
4998 IndentKind::Tab
4999 } else {
5000 IndentKind::Space
5001 };
5002 let mut start_row = selection.start.row;
5003 let mut end_row = selection.end.row + 1;
5004
5005 // If a selection ends at the beginning of a line, don't indent
5006 // that last line.
5007 if selection.end.column == 0 && selection.end.row > selection.start.row {
5008 end_row -= 1;
5009 }
5010
5011 // Avoid re-indenting a row that has already been indented by a
5012 // previous selection, but still update this selection's column
5013 // to reflect that indentation.
5014 if delta_for_start_row > 0 {
5015 start_row += 1;
5016 selection.start.column += delta_for_start_row;
5017 if selection.end.row == selection.start.row {
5018 selection.end.column += delta_for_start_row;
5019 }
5020 }
5021
5022 let mut delta_for_end_row = 0;
5023 let has_multiple_rows = start_row + 1 != end_row;
5024 for row in start_row..end_row {
5025 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5026 let indent_delta = match (current_indent.kind, indent_kind) {
5027 (IndentKind::Space, IndentKind::Space) => {
5028 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5029 IndentSize::spaces(columns_to_next_tab_stop)
5030 }
5031 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5032 (_, IndentKind::Tab) => IndentSize::tab(),
5033 };
5034
5035 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5036 0
5037 } else {
5038 selection.start.column
5039 };
5040 let row_start = Point::new(row, start);
5041 edits.push((
5042 row_start..row_start,
5043 indent_delta.chars().collect::<String>(),
5044 ));
5045
5046 // Update this selection's endpoints to reflect the indentation.
5047 if row == selection.start.row {
5048 selection.start.column += indent_delta.len;
5049 }
5050 if row == selection.end.row {
5051 selection.end.column += indent_delta.len;
5052 delta_for_end_row = indent_delta.len;
5053 }
5054 }
5055
5056 if selection.start.row == selection.end.row {
5057 delta_for_start_row + delta_for_end_row
5058 } else {
5059 delta_for_end_row
5060 }
5061 }
5062
5063 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5064 if self.read_only(cx) {
5065 return;
5066 }
5067 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5068 let selections = self.selections.all::<Point>(cx);
5069 let mut deletion_ranges = Vec::new();
5070 let mut last_outdent = None;
5071 {
5072 let buffer = self.buffer.read(cx);
5073 let snapshot = buffer.snapshot(cx);
5074 for selection in &selections {
5075 let settings = buffer.settings_at(selection.start, cx);
5076 let tab_size = settings.tab_size.get();
5077 let mut rows = selection.spanned_rows(false, &display_map);
5078
5079 // Avoid re-outdenting a row that has already been outdented by a
5080 // previous selection.
5081 if let Some(last_row) = last_outdent {
5082 if last_row == rows.start {
5083 rows.start = rows.start.next_row();
5084 }
5085 }
5086 let has_multiple_rows = rows.len() > 1;
5087 for row in rows.iter_rows() {
5088 let indent_size = snapshot.indent_size_for_line(row);
5089 if indent_size.len > 0 {
5090 let deletion_len = match indent_size.kind {
5091 IndentKind::Space => {
5092 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5093 if columns_to_prev_tab_stop == 0 {
5094 tab_size
5095 } else {
5096 columns_to_prev_tab_stop
5097 }
5098 }
5099 IndentKind::Tab => 1,
5100 };
5101 let start = if has_multiple_rows
5102 || deletion_len > selection.start.column
5103 || indent_size.len < selection.start.column
5104 {
5105 0
5106 } else {
5107 selection.start.column - deletion_len
5108 };
5109 deletion_ranges.push(
5110 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5111 );
5112 last_outdent = Some(row);
5113 }
5114 }
5115 }
5116 }
5117
5118 self.transact(cx, |this, cx| {
5119 this.buffer.update(cx, |buffer, cx| {
5120 let empty_str: Arc<str> = "".into();
5121 buffer.edit(
5122 deletion_ranges
5123 .into_iter()
5124 .map(|range| (range, empty_str.clone())),
5125 None,
5126 cx,
5127 );
5128 });
5129 let selections = this.selections.all::<usize>(cx);
5130 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5131 });
5132 }
5133
5134 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5135 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5136 let selections = self.selections.all::<Point>(cx);
5137
5138 let mut new_cursors = Vec::new();
5139 let mut edit_ranges = Vec::new();
5140 let mut selections = selections.iter().peekable();
5141 while let Some(selection) = selections.next() {
5142 let mut rows = selection.spanned_rows(false, &display_map);
5143 let goal_display_column = selection.head().to_display_point(&display_map).column();
5144
5145 // Accumulate contiguous regions of rows that we want to delete.
5146 while let Some(next_selection) = selections.peek() {
5147 let next_rows = next_selection.spanned_rows(false, &display_map);
5148 if next_rows.start <= rows.end {
5149 rows.end = next_rows.end;
5150 selections.next().unwrap();
5151 } else {
5152 break;
5153 }
5154 }
5155
5156 let buffer = &display_map.buffer_snapshot;
5157 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5158 let edit_end;
5159 let cursor_buffer_row;
5160 if buffer.max_point().row >= rows.end.0 {
5161 // If there's a line after the range, delete the \n from the end of the row range
5162 // and position the cursor on the next line.
5163 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5164 cursor_buffer_row = rows.end;
5165 } else {
5166 // If there isn't a line after the range, delete the \n from the line before the
5167 // start of the row range and position the cursor there.
5168 edit_start = edit_start.saturating_sub(1);
5169 edit_end = buffer.len();
5170 cursor_buffer_row = rows.start.previous_row();
5171 }
5172
5173 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5174 *cursor.column_mut() =
5175 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5176
5177 new_cursors.push((
5178 selection.id,
5179 buffer.anchor_after(cursor.to_point(&display_map)),
5180 ));
5181 edit_ranges.push(edit_start..edit_end);
5182 }
5183
5184 self.transact(cx, |this, cx| {
5185 let buffer = this.buffer.update(cx, |buffer, cx| {
5186 let empty_str: Arc<str> = "".into();
5187 buffer.edit(
5188 edit_ranges
5189 .into_iter()
5190 .map(|range| (range, empty_str.clone())),
5191 None,
5192 cx,
5193 );
5194 buffer.snapshot(cx)
5195 });
5196 let new_selections = new_cursors
5197 .into_iter()
5198 .map(|(id, cursor)| {
5199 let cursor = cursor.to_point(&buffer);
5200 Selection {
5201 id,
5202 start: cursor,
5203 end: cursor,
5204 reversed: false,
5205 goal: SelectionGoal::None,
5206 }
5207 })
5208 .collect();
5209
5210 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5211 s.select(new_selections);
5212 });
5213 });
5214 }
5215
5216 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5217 if self.read_only(cx) {
5218 return;
5219 }
5220 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5221 for selection in self.selections.all::<Point>(cx) {
5222 let start = MultiBufferRow(selection.start.row);
5223 let end = if selection.start.row == selection.end.row {
5224 MultiBufferRow(selection.start.row + 1)
5225 } else {
5226 MultiBufferRow(selection.end.row)
5227 };
5228
5229 if let Some(last_row_range) = row_ranges.last_mut() {
5230 if start <= last_row_range.end {
5231 last_row_range.end = end;
5232 continue;
5233 }
5234 }
5235 row_ranges.push(start..end);
5236 }
5237
5238 let snapshot = self.buffer.read(cx).snapshot(cx);
5239 let mut cursor_positions = Vec::new();
5240 for row_range in &row_ranges {
5241 let anchor = snapshot.anchor_before(Point::new(
5242 row_range.end.previous_row().0,
5243 snapshot.line_len(row_range.end.previous_row()),
5244 ));
5245 cursor_positions.push(anchor..anchor);
5246 }
5247
5248 self.transact(cx, |this, cx| {
5249 for row_range in row_ranges.into_iter().rev() {
5250 for row in row_range.iter_rows().rev() {
5251 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5252 let next_line_row = row.next_row();
5253 let indent = snapshot.indent_size_for_line(next_line_row);
5254 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5255
5256 let replace = if snapshot.line_len(next_line_row) > indent.len {
5257 " "
5258 } else {
5259 ""
5260 };
5261
5262 this.buffer.update(cx, |buffer, cx| {
5263 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5264 });
5265 }
5266 }
5267
5268 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5269 s.select_anchor_ranges(cursor_positions)
5270 });
5271 });
5272 }
5273
5274 pub fn sort_lines_case_sensitive(
5275 &mut self,
5276 _: &SortLinesCaseSensitive,
5277 cx: &mut ViewContext<Self>,
5278 ) {
5279 self.manipulate_lines(cx, |lines| lines.sort())
5280 }
5281
5282 pub fn sort_lines_case_insensitive(
5283 &mut self,
5284 _: &SortLinesCaseInsensitive,
5285 cx: &mut ViewContext<Self>,
5286 ) {
5287 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5288 }
5289
5290 pub fn unique_lines_case_insensitive(
5291 &mut self,
5292 _: &UniqueLinesCaseInsensitive,
5293 cx: &mut ViewContext<Self>,
5294 ) {
5295 self.manipulate_lines(cx, |lines| {
5296 let mut seen = HashSet::default();
5297 lines.retain(|line| seen.insert(line.to_lowercase()));
5298 })
5299 }
5300
5301 pub fn unique_lines_case_sensitive(
5302 &mut self,
5303 _: &UniqueLinesCaseSensitive,
5304 cx: &mut ViewContext<Self>,
5305 ) {
5306 self.manipulate_lines(cx, |lines| {
5307 let mut seen = HashSet::default();
5308 lines.retain(|line| seen.insert(*line));
5309 })
5310 }
5311
5312 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5313 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5314 if !revert_changes.is_empty() {
5315 self.transact(cx, |editor, cx| {
5316 editor.buffer().update(cx, |multi_buffer, cx| {
5317 for (buffer_id, changes) in revert_changes {
5318 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5319 buffer.update(cx, |buffer, cx| {
5320 buffer.edit(
5321 changes.into_iter().map(|(range, text)| {
5322 (range, text.to_string().map(Arc::<str>::from))
5323 }),
5324 None,
5325 cx,
5326 );
5327 });
5328 }
5329 }
5330 });
5331 editor.change_selections(None, cx, |selections| selections.refresh());
5332 });
5333 }
5334 }
5335
5336 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5337 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5338 let project_path = buffer.read(cx).project_path(cx)?;
5339 let project = self.project.as_ref()?.read(cx);
5340 let entry = project.entry_for_path(&project_path, cx)?;
5341 let abs_path = project.absolute_path(&project_path, cx)?;
5342 let parent = if entry.is_symlink {
5343 abs_path.canonicalize().ok()?
5344 } else {
5345 abs_path
5346 }
5347 .parent()?
5348 .to_path_buf();
5349 Some(parent)
5350 }) {
5351 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5352 }
5353 }
5354
5355 fn gather_revert_changes(
5356 &mut self,
5357 selections: &[Selection<Anchor>],
5358 cx: &mut ViewContext<'_, Editor>,
5359 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5360 let mut revert_changes = HashMap::default();
5361 self.buffer.update(cx, |multi_buffer, cx| {
5362 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5363 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5364 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5365 }
5366 });
5367 revert_changes
5368 }
5369
5370 fn prepare_revert_change(
5371 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5372 multi_buffer: &MultiBuffer,
5373 hunk: &DiffHunk<MultiBufferRow>,
5374 cx: &mut AppContext,
5375 ) -> Option<()> {
5376 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5377 let buffer = buffer.read(cx);
5378 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5379 let buffer_snapshot = buffer.snapshot();
5380 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5381 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5382 probe
5383 .0
5384 .start
5385 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5386 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5387 }) {
5388 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5389 Some(())
5390 } else {
5391 None
5392 }
5393 }
5394
5395 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5396 self.manipulate_lines(cx, |lines| lines.reverse())
5397 }
5398
5399 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5400 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5401 }
5402
5403 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5404 where
5405 Fn: FnMut(&mut Vec<&str>),
5406 {
5407 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5408 let buffer = self.buffer.read(cx).snapshot(cx);
5409
5410 let mut edits = Vec::new();
5411
5412 let selections = self.selections.all::<Point>(cx);
5413 let mut selections = selections.iter().peekable();
5414 let mut contiguous_row_selections = Vec::new();
5415 let mut new_selections = Vec::new();
5416 let mut added_lines = 0;
5417 let mut removed_lines = 0;
5418
5419 while let Some(selection) = selections.next() {
5420 let (start_row, end_row) = consume_contiguous_rows(
5421 &mut contiguous_row_selections,
5422 selection,
5423 &display_map,
5424 &mut selections,
5425 );
5426
5427 let start_point = Point::new(start_row.0, 0);
5428 let end_point = Point::new(
5429 end_row.previous_row().0,
5430 buffer.line_len(end_row.previous_row()),
5431 );
5432 let text = buffer
5433 .text_for_range(start_point..end_point)
5434 .collect::<String>();
5435
5436 let mut lines = text.split('\n').collect_vec();
5437
5438 let lines_before = lines.len();
5439 callback(&mut lines);
5440 let lines_after = lines.len();
5441
5442 edits.push((start_point..end_point, lines.join("\n")));
5443
5444 // Selections must change based on added and removed line count
5445 let start_row =
5446 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5447 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5448 new_selections.push(Selection {
5449 id: selection.id,
5450 start: start_row,
5451 end: end_row,
5452 goal: SelectionGoal::None,
5453 reversed: selection.reversed,
5454 });
5455
5456 if lines_after > lines_before {
5457 added_lines += lines_after - lines_before;
5458 } else if lines_before > lines_after {
5459 removed_lines += lines_before - lines_after;
5460 }
5461 }
5462
5463 self.transact(cx, |this, cx| {
5464 let buffer = this.buffer.update(cx, |buffer, cx| {
5465 buffer.edit(edits, None, cx);
5466 buffer.snapshot(cx)
5467 });
5468
5469 // Recalculate offsets on newly edited buffer
5470 let new_selections = new_selections
5471 .iter()
5472 .map(|s| {
5473 let start_point = Point::new(s.start.0, 0);
5474 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5475 Selection {
5476 id: s.id,
5477 start: buffer.point_to_offset(start_point),
5478 end: buffer.point_to_offset(end_point),
5479 goal: s.goal,
5480 reversed: s.reversed,
5481 }
5482 })
5483 .collect();
5484
5485 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5486 s.select(new_selections);
5487 });
5488
5489 this.request_autoscroll(Autoscroll::fit(), cx);
5490 });
5491 }
5492
5493 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5494 self.manipulate_text(cx, |text| text.to_uppercase())
5495 }
5496
5497 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5498 self.manipulate_text(cx, |text| text.to_lowercase())
5499 }
5500
5501 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5502 self.manipulate_text(cx, |text| {
5503 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5504 // https://github.com/rutrum/convert-case/issues/16
5505 text.split('\n')
5506 .map(|line| line.to_case(Case::Title))
5507 .join("\n")
5508 })
5509 }
5510
5511 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5512 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5513 }
5514
5515 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5516 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5517 }
5518
5519 pub fn convert_to_upper_camel_case(
5520 &mut self,
5521 _: &ConvertToUpperCamelCase,
5522 cx: &mut ViewContext<Self>,
5523 ) {
5524 self.manipulate_text(cx, |text| {
5525 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5526 // https://github.com/rutrum/convert-case/issues/16
5527 text.split('\n')
5528 .map(|line| line.to_case(Case::UpperCamel))
5529 .join("\n")
5530 })
5531 }
5532
5533 pub fn convert_to_lower_camel_case(
5534 &mut self,
5535 _: &ConvertToLowerCamelCase,
5536 cx: &mut ViewContext<Self>,
5537 ) {
5538 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5539 }
5540
5541 pub fn convert_to_opposite_case(
5542 &mut self,
5543 _: &ConvertToOppositeCase,
5544 cx: &mut ViewContext<Self>,
5545 ) {
5546 self.manipulate_text(cx, |text| {
5547 text.chars()
5548 .fold(String::with_capacity(text.len()), |mut t, c| {
5549 if c.is_uppercase() {
5550 t.extend(c.to_lowercase());
5551 } else {
5552 t.extend(c.to_uppercase());
5553 }
5554 t
5555 })
5556 })
5557 }
5558
5559 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5560 where
5561 Fn: FnMut(&str) -> String,
5562 {
5563 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5564 let buffer = self.buffer.read(cx).snapshot(cx);
5565
5566 let mut new_selections = Vec::new();
5567 let mut edits = Vec::new();
5568 let mut selection_adjustment = 0i32;
5569
5570 for selection in self.selections.all::<usize>(cx) {
5571 let selection_is_empty = selection.is_empty();
5572
5573 let (start, end) = if selection_is_empty {
5574 let word_range = movement::surrounding_word(
5575 &display_map,
5576 selection.start.to_display_point(&display_map),
5577 );
5578 let start = word_range.start.to_offset(&display_map, Bias::Left);
5579 let end = word_range.end.to_offset(&display_map, Bias::Left);
5580 (start, end)
5581 } else {
5582 (selection.start, selection.end)
5583 };
5584
5585 let text = buffer.text_for_range(start..end).collect::<String>();
5586 let old_length = text.len() as i32;
5587 let text = callback(&text);
5588
5589 new_selections.push(Selection {
5590 start: (start as i32 - selection_adjustment) as usize,
5591 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5592 goal: SelectionGoal::None,
5593 ..selection
5594 });
5595
5596 selection_adjustment += old_length - text.len() as i32;
5597
5598 edits.push((start..end, text));
5599 }
5600
5601 self.transact(cx, |this, cx| {
5602 this.buffer.update(cx, |buffer, cx| {
5603 buffer.edit(edits, None, cx);
5604 });
5605
5606 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5607 s.select(new_selections);
5608 });
5609
5610 this.request_autoscroll(Autoscroll::fit(), cx);
5611 });
5612 }
5613
5614 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5615 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5616 let buffer = &display_map.buffer_snapshot;
5617 let selections = self.selections.all::<Point>(cx);
5618
5619 let mut edits = Vec::new();
5620 let mut selections_iter = selections.iter().peekable();
5621 while let Some(selection) = selections_iter.next() {
5622 // Avoid duplicating the same lines twice.
5623 let mut rows = selection.spanned_rows(false, &display_map);
5624
5625 while let Some(next_selection) = selections_iter.peek() {
5626 let next_rows = next_selection.spanned_rows(false, &display_map);
5627 if next_rows.start < rows.end {
5628 rows.end = next_rows.end;
5629 selections_iter.next().unwrap();
5630 } else {
5631 break;
5632 }
5633 }
5634
5635 // Copy the text from the selected row region and splice it either at the start
5636 // or end of the region.
5637 let start = Point::new(rows.start.0, 0);
5638 let end = Point::new(
5639 rows.end.previous_row().0,
5640 buffer.line_len(rows.end.previous_row()),
5641 );
5642 let text = buffer
5643 .text_for_range(start..end)
5644 .chain(Some("\n"))
5645 .collect::<String>();
5646 let insert_location = if upwards {
5647 Point::new(rows.end.0, 0)
5648 } else {
5649 start
5650 };
5651 edits.push((insert_location..insert_location, text));
5652 }
5653
5654 self.transact(cx, |this, cx| {
5655 this.buffer.update(cx, |buffer, cx| {
5656 buffer.edit(edits, None, cx);
5657 });
5658
5659 this.request_autoscroll(Autoscroll::fit(), cx);
5660 });
5661 }
5662
5663 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5664 self.duplicate_line(true, cx);
5665 }
5666
5667 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5668 self.duplicate_line(false, cx);
5669 }
5670
5671 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5672 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5673 let buffer = self.buffer.read(cx).snapshot(cx);
5674
5675 let mut edits = Vec::new();
5676 let mut unfold_ranges = Vec::new();
5677 let mut refold_ranges = Vec::new();
5678
5679 let selections = self.selections.all::<Point>(cx);
5680 let mut selections = selections.iter().peekable();
5681 let mut contiguous_row_selections = Vec::new();
5682 let mut new_selections = Vec::new();
5683
5684 while let Some(selection) = selections.next() {
5685 // Find all the selections that span a contiguous row range
5686 let (start_row, end_row) = consume_contiguous_rows(
5687 &mut contiguous_row_selections,
5688 selection,
5689 &display_map,
5690 &mut selections,
5691 );
5692
5693 // Move the text spanned by the row range to be before the line preceding the row range
5694 if start_row.0 > 0 {
5695 let range_to_move = Point::new(
5696 start_row.previous_row().0,
5697 buffer.line_len(start_row.previous_row()),
5698 )
5699 ..Point::new(
5700 end_row.previous_row().0,
5701 buffer.line_len(end_row.previous_row()),
5702 );
5703 let insertion_point = display_map
5704 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5705 .0;
5706
5707 // Don't move lines across excerpts
5708 if buffer
5709 .excerpt_boundaries_in_range((
5710 Bound::Excluded(insertion_point),
5711 Bound::Included(range_to_move.end),
5712 ))
5713 .next()
5714 .is_none()
5715 {
5716 let text = buffer
5717 .text_for_range(range_to_move.clone())
5718 .flat_map(|s| s.chars())
5719 .skip(1)
5720 .chain(['\n'])
5721 .collect::<String>();
5722
5723 edits.push((
5724 buffer.anchor_after(range_to_move.start)
5725 ..buffer.anchor_before(range_to_move.end),
5726 String::new(),
5727 ));
5728 let insertion_anchor = buffer.anchor_after(insertion_point);
5729 edits.push((insertion_anchor..insertion_anchor, text));
5730
5731 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5732
5733 // Move selections up
5734 new_selections.extend(contiguous_row_selections.drain(..).map(
5735 |mut selection| {
5736 selection.start.row -= row_delta;
5737 selection.end.row -= row_delta;
5738 selection
5739 },
5740 ));
5741
5742 // Move folds up
5743 unfold_ranges.push(range_to_move.clone());
5744 for fold in display_map.folds_in_range(
5745 buffer.anchor_before(range_to_move.start)
5746 ..buffer.anchor_after(range_to_move.end),
5747 ) {
5748 let mut start = fold.range.start.to_point(&buffer);
5749 let mut end = fold.range.end.to_point(&buffer);
5750 start.row -= row_delta;
5751 end.row -= row_delta;
5752 refold_ranges.push(start..end);
5753 }
5754 }
5755 }
5756
5757 // If we didn't move line(s), preserve the existing selections
5758 new_selections.append(&mut contiguous_row_selections);
5759 }
5760
5761 self.transact(cx, |this, cx| {
5762 this.unfold_ranges(unfold_ranges, true, true, cx);
5763 this.buffer.update(cx, |buffer, cx| {
5764 for (range, text) in edits {
5765 buffer.edit([(range, text)], None, cx);
5766 }
5767 });
5768 this.fold_ranges(refold_ranges, true, cx);
5769 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5770 s.select(new_selections);
5771 })
5772 });
5773 }
5774
5775 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5776 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5777 let buffer = self.buffer.read(cx).snapshot(cx);
5778
5779 let mut edits = Vec::new();
5780 let mut unfold_ranges = Vec::new();
5781 let mut refold_ranges = Vec::new();
5782
5783 let selections = self.selections.all::<Point>(cx);
5784 let mut selections = selections.iter().peekable();
5785 let mut contiguous_row_selections = Vec::new();
5786 let mut new_selections = Vec::new();
5787
5788 while let Some(selection) = selections.next() {
5789 // Find all the selections that span a contiguous row range
5790 let (start_row, end_row) = consume_contiguous_rows(
5791 &mut contiguous_row_selections,
5792 selection,
5793 &display_map,
5794 &mut selections,
5795 );
5796
5797 // Move the text spanned by the row range to be after the last line of the row range
5798 if end_row.0 <= buffer.max_point().row {
5799 let range_to_move =
5800 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5801 let insertion_point = display_map
5802 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5803 .0;
5804
5805 // Don't move lines across excerpt boundaries
5806 if buffer
5807 .excerpt_boundaries_in_range((
5808 Bound::Excluded(range_to_move.start),
5809 Bound::Included(insertion_point),
5810 ))
5811 .next()
5812 .is_none()
5813 {
5814 let mut text = String::from("\n");
5815 text.extend(buffer.text_for_range(range_to_move.clone()));
5816 text.pop(); // Drop trailing newline
5817 edits.push((
5818 buffer.anchor_after(range_to_move.start)
5819 ..buffer.anchor_before(range_to_move.end),
5820 String::new(),
5821 ));
5822 let insertion_anchor = buffer.anchor_after(insertion_point);
5823 edits.push((insertion_anchor..insertion_anchor, text));
5824
5825 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5826
5827 // Move selections down
5828 new_selections.extend(contiguous_row_selections.drain(..).map(
5829 |mut selection| {
5830 selection.start.row += row_delta;
5831 selection.end.row += row_delta;
5832 selection
5833 },
5834 ));
5835
5836 // Move folds down
5837 unfold_ranges.push(range_to_move.clone());
5838 for fold in display_map.folds_in_range(
5839 buffer.anchor_before(range_to_move.start)
5840 ..buffer.anchor_after(range_to_move.end),
5841 ) {
5842 let mut start = fold.range.start.to_point(&buffer);
5843 let mut end = fold.range.end.to_point(&buffer);
5844 start.row += row_delta;
5845 end.row += row_delta;
5846 refold_ranges.push(start..end);
5847 }
5848 }
5849 }
5850
5851 // If we didn't move line(s), preserve the existing selections
5852 new_selections.append(&mut contiguous_row_selections);
5853 }
5854
5855 self.transact(cx, |this, cx| {
5856 this.unfold_ranges(unfold_ranges, true, true, cx);
5857 this.buffer.update(cx, |buffer, cx| {
5858 for (range, text) in edits {
5859 buffer.edit([(range, text)], None, cx);
5860 }
5861 });
5862 this.fold_ranges(refold_ranges, true, cx);
5863 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5864 });
5865 }
5866
5867 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5868 let text_layout_details = &self.text_layout_details(cx);
5869 self.transact(cx, |this, cx| {
5870 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5871 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5872 let line_mode = s.line_mode;
5873 s.move_with(|display_map, selection| {
5874 if !selection.is_empty() || line_mode {
5875 return;
5876 }
5877
5878 let mut head = selection.head();
5879 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5880 if head.column() == display_map.line_len(head.row()) {
5881 transpose_offset = display_map
5882 .buffer_snapshot
5883 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5884 }
5885
5886 if transpose_offset == 0 {
5887 return;
5888 }
5889
5890 *head.column_mut() += 1;
5891 head = display_map.clip_point(head, Bias::Right);
5892 let goal = SelectionGoal::HorizontalPosition(
5893 display_map
5894 .x_for_display_point(head, &text_layout_details)
5895 .into(),
5896 );
5897 selection.collapse_to(head, goal);
5898
5899 let transpose_start = display_map
5900 .buffer_snapshot
5901 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5902 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5903 let transpose_end = display_map
5904 .buffer_snapshot
5905 .clip_offset(transpose_offset + 1, Bias::Right);
5906 if let Some(ch) =
5907 display_map.buffer_snapshot.chars_at(transpose_start).next()
5908 {
5909 edits.push((transpose_start..transpose_offset, String::new()));
5910 edits.push((transpose_end..transpose_end, ch.to_string()));
5911 }
5912 }
5913 });
5914 edits
5915 });
5916 this.buffer
5917 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5918 let selections = this.selections.all::<usize>(cx);
5919 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5920 s.select(selections);
5921 });
5922 });
5923 }
5924
5925 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5926 let mut text = String::new();
5927 let buffer = self.buffer.read(cx).snapshot(cx);
5928 let mut selections = self.selections.all::<Point>(cx);
5929 let mut clipboard_selections = Vec::with_capacity(selections.len());
5930 {
5931 let max_point = buffer.max_point();
5932 let mut is_first = true;
5933 for selection in &mut selections {
5934 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5935 if is_entire_line {
5936 selection.start = Point::new(selection.start.row, 0);
5937 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5938 selection.goal = SelectionGoal::None;
5939 }
5940 if is_first {
5941 is_first = false;
5942 } else {
5943 text += "\n";
5944 }
5945 let mut len = 0;
5946 for chunk in buffer.text_for_range(selection.start..selection.end) {
5947 text.push_str(chunk);
5948 len += chunk.len();
5949 }
5950 clipboard_selections.push(ClipboardSelection {
5951 len,
5952 is_entire_line,
5953 first_line_indent: buffer
5954 .indent_size_for_line(MultiBufferRow(selection.start.row))
5955 .len,
5956 });
5957 }
5958 }
5959
5960 self.transact(cx, |this, cx| {
5961 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5962 s.select(selections);
5963 });
5964 this.insert("", cx);
5965 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5966 });
5967 }
5968
5969 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5970 let selections = self.selections.all::<Point>(cx);
5971 let buffer = self.buffer.read(cx).read(cx);
5972 let mut text = String::new();
5973
5974 let mut clipboard_selections = Vec::with_capacity(selections.len());
5975 {
5976 let max_point = buffer.max_point();
5977 let mut is_first = true;
5978 for selection in selections.iter() {
5979 let mut start = selection.start;
5980 let mut end = selection.end;
5981 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5982 if is_entire_line {
5983 start = Point::new(start.row, 0);
5984 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5985 }
5986 if is_first {
5987 is_first = false;
5988 } else {
5989 text += "\n";
5990 }
5991 let mut len = 0;
5992 for chunk in buffer.text_for_range(start..end) {
5993 text.push_str(chunk);
5994 len += chunk.len();
5995 }
5996 clipboard_selections.push(ClipboardSelection {
5997 len,
5998 is_entire_line,
5999 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6000 });
6001 }
6002 }
6003
6004 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6005 }
6006
6007 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6008 if self.read_only(cx) {
6009 return;
6010 }
6011
6012 self.transact(cx, |this, cx| {
6013 if let Some(item) = cx.read_from_clipboard() {
6014 let clipboard_text = Cow::Borrowed(item.text());
6015 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6016 let old_selections = this.selections.all::<usize>(cx);
6017 let all_selections_were_entire_line =
6018 clipboard_selections.iter().all(|s| s.is_entire_line);
6019 let first_selection_indent_column =
6020 clipboard_selections.first().map(|s| s.first_line_indent);
6021 if clipboard_selections.len() != old_selections.len() {
6022 clipboard_selections.drain(..);
6023 }
6024
6025 this.buffer.update(cx, |buffer, cx| {
6026 let snapshot = buffer.read(cx);
6027 let mut start_offset = 0;
6028 let mut edits = Vec::new();
6029 let mut original_indent_columns = Vec::new();
6030 let line_mode = this.selections.line_mode;
6031 for (ix, selection) in old_selections.iter().enumerate() {
6032 let to_insert;
6033 let entire_line;
6034 let original_indent_column;
6035 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6036 let end_offset = start_offset + clipboard_selection.len;
6037 to_insert = &clipboard_text[start_offset..end_offset];
6038 entire_line = clipboard_selection.is_entire_line;
6039 start_offset = end_offset + 1;
6040 original_indent_column =
6041 Some(clipboard_selection.first_line_indent);
6042 } else {
6043 to_insert = clipboard_text.as_str();
6044 entire_line = all_selections_were_entire_line;
6045 original_indent_column = first_selection_indent_column
6046 }
6047
6048 // If the corresponding selection was empty when this slice of the
6049 // clipboard text was written, then the entire line containing the
6050 // selection was copied. If this selection is also currently empty,
6051 // then paste the line before the current line of the buffer.
6052 let range = if selection.is_empty() && !line_mode && entire_line {
6053 let column = selection.start.to_point(&snapshot).column as usize;
6054 let line_start = selection.start - column;
6055 line_start..line_start
6056 } else {
6057 selection.range()
6058 };
6059
6060 edits.push((range, to_insert));
6061 original_indent_columns.extend(original_indent_column);
6062 }
6063 drop(snapshot);
6064
6065 buffer.edit(
6066 edits,
6067 Some(AutoindentMode::Block {
6068 original_indent_columns,
6069 }),
6070 cx,
6071 );
6072 });
6073
6074 let selections = this.selections.all::<usize>(cx);
6075 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6076 } else {
6077 this.insert(&clipboard_text, cx);
6078 }
6079 }
6080 });
6081 }
6082
6083 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6084 if self.read_only(cx) {
6085 return;
6086 }
6087
6088 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6089 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6090 self.change_selections(None, cx, |s| {
6091 s.select_anchors(selections.to_vec());
6092 });
6093 }
6094 self.request_autoscroll(Autoscroll::fit(), cx);
6095 self.unmark_text(cx);
6096 self.refresh_inline_completion(true, cx);
6097 cx.emit(EditorEvent::Edited);
6098 cx.emit(EditorEvent::TransactionUndone {
6099 transaction_id: tx_id,
6100 });
6101 }
6102 }
6103
6104 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6105 if self.read_only(cx) {
6106 return;
6107 }
6108
6109 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6110 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6111 {
6112 self.change_selections(None, cx, |s| {
6113 s.select_anchors(selections.to_vec());
6114 });
6115 }
6116 self.request_autoscroll(Autoscroll::fit(), cx);
6117 self.unmark_text(cx);
6118 self.refresh_inline_completion(true, cx);
6119 cx.emit(EditorEvent::Edited);
6120 }
6121 }
6122
6123 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6124 self.buffer
6125 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6126 }
6127
6128 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6129 self.buffer
6130 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6131 }
6132
6133 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6134 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6135 let line_mode = s.line_mode;
6136 s.move_with(|map, selection| {
6137 let cursor = if selection.is_empty() && !line_mode {
6138 movement::left(map, selection.start)
6139 } else {
6140 selection.start
6141 };
6142 selection.collapse_to(cursor, SelectionGoal::None);
6143 });
6144 })
6145 }
6146
6147 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6148 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6149 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6150 })
6151 }
6152
6153 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6155 let line_mode = s.line_mode;
6156 s.move_with(|map, selection| {
6157 let cursor = if selection.is_empty() && !line_mode {
6158 movement::right(map, selection.end)
6159 } else {
6160 selection.end
6161 };
6162 selection.collapse_to(cursor, SelectionGoal::None)
6163 });
6164 })
6165 }
6166
6167 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6168 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6169 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6170 })
6171 }
6172
6173 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6174 if self.take_rename(true, cx).is_some() {
6175 return;
6176 }
6177
6178 if matches!(self.mode, EditorMode::SingleLine) {
6179 cx.propagate();
6180 return;
6181 }
6182
6183 let text_layout_details = &self.text_layout_details(cx);
6184
6185 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6186 let line_mode = s.line_mode;
6187 s.move_with(|map, selection| {
6188 if !selection.is_empty() && !line_mode {
6189 selection.goal = SelectionGoal::None;
6190 }
6191 let (cursor, goal) = movement::up(
6192 map,
6193 selection.start,
6194 selection.goal,
6195 false,
6196 &text_layout_details,
6197 );
6198 selection.collapse_to(cursor, goal);
6199 });
6200 })
6201 }
6202
6203 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6204 if self.take_rename(true, cx).is_some() {
6205 return;
6206 }
6207
6208 if matches!(self.mode, EditorMode::SingleLine) {
6209 cx.propagate();
6210 return;
6211 }
6212
6213 let text_layout_details = &self.text_layout_details(cx);
6214
6215 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6216 let line_mode = s.line_mode;
6217 s.move_with(|map, selection| {
6218 if !selection.is_empty() && !line_mode {
6219 selection.goal = SelectionGoal::None;
6220 }
6221 let (cursor, goal) = movement::up_by_rows(
6222 map,
6223 selection.start,
6224 action.lines,
6225 selection.goal,
6226 false,
6227 &text_layout_details,
6228 );
6229 selection.collapse_to(cursor, goal);
6230 });
6231 })
6232 }
6233
6234 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6235 if self.take_rename(true, cx).is_some() {
6236 return;
6237 }
6238
6239 if matches!(self.mode, EditorMode::SingleLine) {
6240 cx.propagate();
6241 return;
6242 }
6243
6244 let text_layout_details = &self.text_layout_details(cx);
6245
6246 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6247 let line_mode = s.line_mode;
6248 s.move_with(|map, selection| {
6249 if !selection.is_empty() && !line_mode {
6250 selection.goal = SelectionGoal::None;
6251 }
6252 let (cursor, goal) = movement::down_by_rows(
6253 map,
6254 selection.start,
6255 action.lines,
6256 selection.goal,
6257 false,
6258 &text_layout_details,
6259 );
6260 selection.collapse_to(cursor, goal);
6261 });
6262 })
6263 }
6264
6265 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6266 let text_layout_details = &self.text_layout_details(cx);
6267 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6268 s.move_heads_with(|map, head, goal| {
6269 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6270 })
6271 })
6272 }
6273
6274 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6275 let text_layout_details = &self.text_layout_details(cx);
6276 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6277 s.move_heads_with(|map, head, goal| {
6278 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6279 })
6280 })
6281 }
6282
6283 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6284 if self.take_rename(true, cx).is_some() {
6285 return;
6286 }
6287
6288 if matches!(self.mode, EditorMode::SingleLine) {
6289 cx.propagate();
6290 return;
6291 }
6292
6293 let row_count = if let Some(row_count) = self.visible_line_count() {
6294 row_count as u32 - 1
6295 } else {
6296 return;
6297 };
6298
6299 let autoscroll = if action.center_cursor {
6300 Autoscroll::center()
6301 } else {
6302 Autoscroll::fit()
6303 };
6304
6305 let text_layout_details = &self.text_layout_details(cx);
6306
6307 self.change_selections(Some(autoscroll), cx, |s| {
6308 let line_mode = s.line_mode;
6309 s.move_with(|map, selection| {
6310 if !selection.is_empty() && !line_mode {
6311 selection.goal = SelectionGoal::None;
6312 }
6313 let (cursor, goal) = movement::up_by_rows(
6314 map,
6315 selection.end,
6316 row_count,
6317 selection.goal,
6318 false,
6319 &text_layout_details,
6320 );
6321 selection.collapse_to(cursor, goal);
6322 });
6323 });
6324 }
6325
6326 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6327 let text_layout_details = &self.text_layout_details(cx);
6328 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6329 s.move_heads_with(|map, head, goal| {
6330 movement::up(map, head, goal, false, &text_layout_details)
6331 })
6332 })
6333 }
6334
6335 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6336 self.take_rename(true, cx);
6337
6338 if self.mode == EditorMode::SingleLine {
6339 cx.propagate();
6340 return;
6341 }
6342
6343 let text_layout_details = &self.text_layout_details(cx);
6344 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6345 let line_mode = s.line_mode;
6346 s.move_with(|map, selection| {
6347 if !selection.is_empty() && !line_mode {
6348 selection.goal = SelectionGoal::None;
6349 }
6350 let (cursor, goal) = movement::down(
6351 map,
6352 selection.end,
6353 selection.goal,
6354 false,
6355 &text_layout_details,
6356 );
6357 selection.collapse_to(cursor, goal);
6358 });
6359 });
6360 }
6361
6362 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6363 if self.take_rename(true, cx).is_some() {
6364 return;
6365 }
6366
6367 if self
6368 .context_menu
6369 .write()
6370 .as_mut()
6371 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6372 .unwrap_or(false)
6373 {
6374 return;
6375 }
6376
6377 if matches!(self.mode, EditorMode::SingleLine) {
6378 cx.propagate();
6379 return;
6380 }
6381
6382 let row_count = if let Some(row_count) = self.visible_line_count() {
6383 row_count as u32 - 1
6384 } else {
6385 return;
6386 };
6387
6388 let autoscroll = if action.center_cursor {
6389 Autoscroll::center()
6390 } else {
6391 Autoscroll::fit()
6392 };
6393
6394 let text_layout_details = &self.text_layout_details(cx);
6395 self.change_selections(Some(autoscroll), cx, |s| {
6396 let line_mode = s.line_mode;
6397 s.move_with(|map, selection| {
6398 if !selection.is_empty() && !line_mode {
6399 selection.goal = SelectionGoal::None;
6400 }
6401 let (cursor, goal) = movement::down_by_rows(
6402 map,
6403 selection.end,
6404 row_count,
6405 selection.goal,
6406 false,
6407 &text_layout_details,
6408 );
6409 selection.collapse_to(cursor, goal);
6410 });
6411 });
6412 }
6413
6414 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6415 let text_layout_details = &self.text_layout_details(cx);
6416 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6417 s.move_heads_with(|map, head, goal| {
6418 movement::down(map, head, goal, false, &text_layout_details)
6419 })
6420 });
6421 }
6422
6423 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6424 if let Some(context_menu) = self.context_menu.write().as_mut() {
6425 context_menu.select_first(self.project.as_ref(), cx);
6426 }
6427 }
6428
6429 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6430 if let Some(context_menu) = self.context_menu.write().as_mut() {
6431 context_menu.select_prev(self.project.as_ref(), cx);
6432 }
6433 }
6434
6435 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6436 if let Some(context_menu) = self.context_menu.write().as_mut() {
6437 context_menu.select_next(self.project.as_ref(), cx);
6438 }
6439 }
6440
6441 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6442 if let Some(context_menu) = self.context_menu.write().as_mut() {
6443 context_menu.select_last(self.project.as_ref(), cx);
6444 }
6445 }
6446
6447 pub fn move_to_previous_word_start(
6448 &mut self,
6449 _: &MoveToPreviousWordStart,
6450 cx: &mut ViewContext<Self>,
6451 ) {
6452 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6453 s.move_cursors_with(|map, head, _| {
6454 (
6455 movement::previous_word_start(map, head),
6456 SelectionGoal::None,
6457 )
6458 });
6459 })
6460 }
6461
6462 pub fn move_to_previous_subword_start(
6463 &mut self,
6464 _: &MoveToPreviousSubwordStart,
6465 cx: &mut ViewContext<Self>,
6466 ) {
6467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6468 s.move_cursors_with(|map, head, _| {
6469 (
6470 movement::previous_subword_start(map, head),
6471 SelectionGoal::None,
6472 )
6473 });
6474 })
6475 }
6476
6477 pub fn select_to_previous_word_start(
6478 &mut self,
6479 _: &SelectToPreviousWordStart,
6480 cx: &mut ViewContext<Self>,
6481 ) {
6482 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6483 s.move_heads_with(|map, head, _| {
6484 (
6485 movement::previous_word_start(map, head),
6486 SelectionGoal::None,
6487 )
6488 });
6489 })
6490 }
6491
6492 pub fn select_to_previous_subword_start(
6493 &mut self,
6494 _: &SelectToPreviousSubwordStart,
6495 cx: &mut ViewContext<Self>,
6496 ) {
6497 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6498 s.move_heads_with(|map, head, _| {
6499 (
6500 movement::previous_subword_start(map, head),
6501 SelectionGoal::None,
6502 )
6503 });
6504 })
6505 }
6506
6507 pub fn delete_to_previous_word_start(
6508 &mut self,
6509 _: &DeleteToPreviousWordStart,
6510 cx: &mut ViewContext<Self>,
6511 ) {
6512 self.transact(cx, |this, cx| {
6513 this.select_autoclose_pair(cx);
6514 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6515 let line_mode = s.line_mode;
6516 s.move_with(|map, selection| {
6517 if selection.is_empty() && !line_mode {
6518 let cursor = movement::previous_word_start(map, selection.head());
6519 selection.set_head(cursor, SelectionGoal::None);
6520 }
6521 });
6522 });
6523 this.insert("", cx);
6524 });
6525 }
6526
6527 pub fn delete_to_previous_subword_start(
6528 &mut self,
6529 _: &DeleteToPreviousSubwordStart,
6530 cx: &mut ViewContext<Self>,
6531 ) {
6532 self.transact(cx, |this, cx| {
6533 this.select_autoclose_pair(cx);
6534 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6535 let line_mode = s.line_mode;
6536 s.move_with(|map, selection| {
6537 if selection.is_empty() && !line_mode {
6538 let cursor = movement::previous_subword_start(map, selection.head());
6539 selection.set_head(cursor, SelectionGoal::None);
6540 }
6541 });
6542 });
6543 this.insert("", cx);
6544 });
6545 }
6546
6547 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6548 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6549 s.move_cursors_with(|map, head, _| {
6550 (movement::next_word_end(map, head), SelectionGoal::None)
6551 });
6552 })
6553 }
6554
6555 pub fn move_to_next_subword_end(
6556 &mut self,
6557 _: &MoveToNextSubwordEnd,
6558 cx: &mut ViewContext<Self>,
6559 ) {
6560 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6561 s.move_cursors_with(|map, head, _| {
6562 (movement::next_subword_end(map, head), SelectionGoal::None)
6563 });
6564 })
6565 }
6566
6567 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6568 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6569 s.move_heads_with(|map, head, _| {
6570 (movement::next_word_end(map, head), SelectionGoal::None)
6571 });
6572 })
6573 }
6574
6575 pub fn select_to_next_subword_end(
6576 &mut self,
6577 _: &SelectToNextSubwordEnd,
6578 cx: &mut ViewContext<Self>,
6579 ) {
6580 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6581 s.move_heads_with(|map, head, _| {
6582 (movement::next_subword_end(map, head), SelectionGoal::None)
6583 });
6584 })
6585 }
6586
6587 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6588 self.transact(cx, |this, cx| {
6589 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6590 let line_mode = s.line_mode;
6591 s.move_with(|map, selection| {
6592 if selection.is_empty() && !line_mode {
6593 let cursor = movement::next_word_end(map, selection.head());
6594 selection.set_head(cursor, SelectionGoal::None);
6595 }
6596 });
6597 });
6598 this.insert("", cx);
6599 });
6600 }
6601
6602 pub fn delete_to_next_subword_end(
6603 &mut self,
6604 _: &DeleteToNextSubwordEnd,
6605 cx: &mut ViewContext<Self>,
6606 ) {
6607 self.transact(cx, |this, cx| {
6608 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6609 s.move_with(|map, selection| {
6610 if selection.is_empty() {
6611 let cursor = movement::next_subword_end(map, selection.head());
6612 selection.set_head(cursor, SelectionGoal::None);
6613 }
6614 });
6615 });
6616 this.insert("", cx);
6617 });
6618 }
6619
6620 pub fn move_to_beginning_of_line(
6621 &mut self,
6622 action: &MoveToBeginningOfLine,
6623 cx: &mut ViewContext<Self>,
6624 ) {
6625 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6626 s.move_cursors_with(|map, head, _| {
6627 (
6628 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6629 SelectionGoal::None,
6630 )
6631 });
6632 })
6633 }
6634
6635 pub fn select_to_beginning_of_line(
6636 &mut self,
6637 action: &SelectToBeginningOfLine,
6638 cx: &mut ViewContext<Self>,
6639 ) {
6640 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6641 s.move_heads_with(|map, head, _| {
6642 (
6643 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6644 SelectionGoal::None,
6645 )
6646 });
6647 });
6648 }
6649
6650 pub fn delete_to_beginning_of_line(
6651 &mut self,
6652 _: &DeleteToBeginningOfLine,
6653 cx: &mut ViewContext<Self>,
6654 ) {
6655 self.transact(cx, |this, cx| {
6656 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6657 s.move_with(|_, selection| {
6658 selection.reversed = true;
6659 });
6660 });
6661
6662 this.select_to_beginning_of_line(
6663 &SelectToBeginningOfLine {
6664 stop_at_soft_wraps: false,
6665 },
6666 cx,
6667 );
6668 this.backspace(&Backspace, cx);
6669 });
6670 }
6671
6672 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6673 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6674 s.move_cursors_with(|map, head, _| {
6675 (
6676 movement::line_end(map, head, action.stop_at_soft_wraps),
6677 SelectionGoal::None,
6678 )
6679 });
6680 })
6681 }
6682
6683 pub fn select_to_end_of_line(
6684 &mut self,
6685 action: &SelectToEndOfLine,
6686 cx: &mut ViewContext<Self>,
6687 ) {
6688 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6689 s.move_heads_with(|map, head, _| {
6690 (
6691 movement::line_end(map, head, action.stop_at_soft_wraps),
6692 SelectionGoal::None,
6693 )
6694 });
6695 })
6696 }
6697
6698 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6699 self.transact(cx, |this, cx| {
6700 this.select_to_end_of_line(
6701 &SelectToEndOfLine {
6702 stop_at_soft_wraps: false,
6703 },
6704 cx,
6705 );
6706 this.delete(&Delete, cx);
6707 });
6708 }
6709
6710 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6711 self.transact(cx, |this, cx| {
6712 this.select_to_end_of_line(
6713 &SelectToEndOfLine {
6714 stop_at_soft_wraps: false,
6715 },
6716 cx,
6717 );
6718 this.cut(&Cut, cx);
6719 });
6720 }
6721
6722 pub fn move_to_start_of_paragraph(
6723 &mut self,
6724 _: &MoveToStartOfParagraph,
6725 cx: &mut ViewContext<Self>,
6726 ) {
6727 if matches!(self.mode, EditorMode::SingleLine) {
6728 cx.propagate();
6729 return;
6730 }
6731
6732 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6733 s.move_with(|map, selection| {
6734 selection.collapse_to(
6735 movement::start_of_paragraph(map, selection.head(), 1),
6736 SelectionGoal::None,
6737 )
6738 });
6739 })
6740 }
6741
6742 pub fn move_to_end_of_paragraph(
6743 &mut self,
6744 _: &MoveToEndOfParagraph,
6745 cx: &mut ViewContext<Self>,
6746 ) {
6747 if matches!(self.mode, EditorMode::SingleLine) {
6748 cx.propagate();
6749 return;
6750 }
6751
6752 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6753 s.move_with(|map, selection| {
6754 selection.collapse_to(
6755 movement::end_of_paragraph(map, selection.head(), 1),
6756 SelectionGoal::None,
6757 )
6758 });
6759 })
6760 }
6761
6762 pub fn select_to_start_of_paragraph(
6763 &mut self,
6764 _: &SelectToStartOfParagraph,
6765 cx: &mut ViewContext<Self>,
6766 ) {
6767 if matches!(self.mode, EditorMode::SingleLine) {
6768 cx.propagate();
6769 return;
6770 }
6771
6772 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6773 s.move_heads_with(|map, head, _| {
6774 (
6775 movement::start_of_paragraph(map, head, 1),
6776 SelectionGoal::None,
6777 )
6778 });
6779 })
6780 }
6781
6782 pub fn select_to_end_of_paragraph(
6783 &mut self,
6784 _: &SelectToEndOfParagraph,
6785 cx: &mut ViewContext<Self>,
6786 ) {
6787 if matches!(self.mode, EditorMode::SingleLine) {
6788 cx.propagate();
6789 return;
6790 }
6791
6792 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6793 s.move_heads_with(|map, head, _| {
6794 (
6795 movement::end_of_paragraph(map, head, 1),
6796 SelectionGoal::None,
6797 )
6798 });
6799 })
6800 }
6801
6802 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6803 if matches!(self.mode, EditorMode::SingleLine) {
6804 cx.propagate();
6805 return;
6806 }
6807
6808 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6809 s.select_ranges(vec![0..0]);
6810 });
6811 }
6812
6813 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6814 let mut selection = self.selections.last::<Point>(cx);
6815 selection.set_head(Point::zero(), SelectionGoal::None);
6816
6817 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6818 s.select(vec![selection]);
6819 });
6820 }
6821
6822 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6823 if matches!(self.mode, EditorMode::SingleLine) {
6824 cx.propagate();
6825 return;
6826 }
6827
6828 let cursor = self.buffer.read(cx).read(cx).len();
6829 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6830 s.select_ranges(vec![cursor..cursor])
6831 });
6832 }
6833
6834 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6835 self.nav_history = nav_history;
6836 }
6837
6838 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6839 self.nav_history.as_ref()
6840 }
6841
6842 fn push_to_nav_history(
6843 &mut self,
6844 cursor_anchor: Anchor,
6845 new_position: Option<Point>,
6846 cx: &mut ViewContext<Self>,
6847 ) {
6848 if let Some(nav_history) = self.nav_history.as_mut() {
6849 let buffer = self.buffer.read(cx).read(cx);
6850 let cursor_position = cursor_anchor.to_point(&buffer);
6851 let scroll_state = self.scroll_manager.anchor();
6852 let scroll_top_row = scroll_state.top_row(&buffer);
6853 drop(buffer);
6854
6855 if let Some(new_position) = new_position {
6856 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6857 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6858 return;
6859 }
6860 }
6861
6862 nav_history.push(
6863 Some(NavigationData {
6864 cursor_anchor,
6865 cursor_position,
6866 scroll_anchor: scroll_state,
6867 scroll_top_row,
6868 }),
6869 cx,
6870 );
6871 }
6872 }
6873
6874 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6875 let buffer = self.buffer.read(cx).snapshot(cx);
6876 let mut selection = self.selections.first::<usize>(cx);
6877 selection.set_head(buffer.len(), SelectionGoal::None);
6878 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6879 s.select(vec![selection]);
6880 });
6881 }
6882
6883 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6884 let end = self.buffer.read(cx).read(cx).len();
6885 self.change_selections(None, cx, |s| {
6886 s.select_ranges(vec![0..end]);
6887 });
6888 }
6889
6890 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6891 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6892 let mut selections = self.selections.all::<Point>(cx);
6893 let max_point = display_map.buffer_snapshot.max_point();
6894 for selection in &mut selections {
6895 let rows = selection.spanned_rows(true, &display_map);
6896 selection.start = Point::new(rows.start.0, 0);
6897 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
6898 selection.reversed = false;
6899 }
6900 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6901 s.select(selections);
6902 });
6903 }
6904
6905 pub fn split_selection_into_lines(
6906 &mut self,
6907 _: &SplitSelectionIntoLines,
6908 cx: &mut ViewContext<Self>,
6909 ) {
6910 let mut to_unfold = Vec::new();
6911 let mut new_selection_ranges = Vec::new();
6912 {
6913 let selections = self.selections.all::<Point>(cx);
6914 let buffer = self.buffer.read(cx).read(cx);
6915 for selection in selections {
6916 for row in selection.start.row..selection.end.row {
6917 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
6918 new_selection_ranges.push(cursor..cursor);
6919 }
6920 new_selection_ranges.push(selection.end..selection.end);
6921 to_unfold.push(selection.start..selection.end);
6922 }
6923 }
6924 self.unfold_ranges(to_unfold, true, true, cx);
6925 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6926 s.select_ranges(new_selection_ranges);
6927 });
6928 }
6929
6930 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6931 self.add_selection(true, cx);
6932 }
6933
6934 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6935 self.add_selection(false, cx);
6936 }
6937
6938 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6939 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6940 let mut selections = self.selections.all::<Point>(cx);
6941 let text_layout_details = self.text_layout_details(cx);
6942 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6943 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6944 let range = oldest_selection.display_range(&display_map).sorted();
6945
6946 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6947 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6948 let positions = start_x.min(end_x)..start_x.max(end_x);
6949
6950 selections.clear();
6951 let mut stack = Vec::new();
6952 for row in range.start.row().0..=range.end.row().0 {
6953 if let Some(selection) = self.selections.build_columnar_selection(
6954 &display_map,
6955 DisplayRow(row),
6956 &positions,
6957 oldest_selection.reversed,
6958 &text_layout_details,
6959 ) {
6960 stack.push(selection.id);
6961 selections.push(selection);
6962 }
6963 }
6964
6965 if above {
6966 stack.reverse();
6967 }
6968
6969 AddSelectionsState { above, stack }
6970 });
6971
6972 let last_added_selection = *state.stack.last().unwrap();
6973 let mut new_selections = Vec::new();
6974 if above == state.above {
6975 let end_row = if above {
6976 DisplayRow(0)
6977 } else {
6978 display_map.max_point().row()
6979 };
6980
6981 'outer: for selection in selections {
6982 if selection.id == last_added_selection {
6983 let range = selection.display_range(&display_map).sorted();
6984 debug_assert_eq!(range.start.row(), range.end.row());
6985 let mut row = range.start.row();
6986 let positions =
6987 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6988 px(start)..px(end)
6989 } else {
6990 let start_x =
6991 display_map.x_for_display_point(range.start, &text_layout_details);
6992 let end_x =
6993 display_map.x_for_display_point(range.end, &text_layout_details);
6994 start_x.min(end_x)..start_x.max(end_x)
6995 };
6996
6997 while row != end_row {
6998 if above {
6999 row.0 -= 1;
7000 } else {
7001 row.0 += 1;
7002 }
7003
7004 if let Some(new_selection) = self.selections.build_columnar_selection(
7005 &display_map,
7006 row,
7007 &positions,
7008 selection.reversed,
7009 &text_layout_details,
7010 ) {
7011 state.stack.push(new_selection.id);
7012 if above {
7013 new_selections.push(new_selection);
7014 new_selections.push(selection);
7015 } else {
7016 new_selections.push(selection);
7017 new_selections.push(new_selection);
7018 }
7019
7020 continue 'outer;
7021 }
7022 }
7023 }
7024
7025 new_selections.push(selection);
7026 }
7027 } else {
7028 new_selections = selections;
7029 new_selections.retain(|s| s.id != last_added_selection);
7030 state.stack.pop();
7031 }
7032
7033 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7034 s.select(new_selections);
7035 });
7036 if state.stack.len() > 1 {
7037 self.add_selections_state = Some(state);
7038 }
7039 }
7040
7041 pub fn select_next_match_internal(
7042 &mut self,
7043 display_map: &DisplaySnapshot,
7044 replace_newest: bool,
7045 autoscroll: Option<Autoscroll>,
7046 cx: &mut ViewContext<Self>,
7047 ) -> Result<()> {
7048 fn select_next_match_ranges(
7049 this: &mut Editor,
7050 range: Range<usize>,
7051 replace_newest: bool,
7052 auto_scroll: Option<Autoscroll>,
7053 cx: &mut ViewContext<Editor>,
7054 ) {
7055 this.unfold_ranges([range.clone()], false, true, cx);
7056 this.change_selections(auto_scroll, cx, |s| {
7057 if replace_newest {
7058 s.delete(s.newest_anchor().id);
7059 }
7060 s.insert_range(range.clone());
7061 });
7062 }
7063
7064 let buffer = &display_map.buffer_snapshot;
7065 let mut selections = self.selections.all::<usize>(cx);
7066 if let Some(mut select_next_state) = self.select_next_state.take() {
7067 let query = &select_next_state.query;
7068 if !select_next_state.done {
7069 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7070 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7071 let mut next_selected_range = None;
7072
7073 let bytes_after_last_selection =
7074 buffer.bytes_in_range(last_selection.end..buffer.len());
7075 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7076 let query_matches = query
7077 .stream_find_iter(bytes_after_last_selection)
7078 .map(|result| (last_selection.end, result))
7079 .chain(
7080 query
7081 .stream_find_iter(bytes_before_first_selection)
7082 .map(|result| (0, result)),
7083 );
7084
7085 for (start_offset, query_match) in query_matches {
7086 let query_match = query_match.unwrap(); // can only fail due to I/O
7087 let offset_range =
7088 start_offset + query_match.start()..start_offset + query_match.end();
7089 let display_range = offset_range.start.to_display_point(&display_map)
7090 ..offset_range.end.to_display_point(&display_map);
7091
7092 if !select_next_state.wordwise
7093 || (!movement::is_inside_word(&display_map, display_range.start)
7094 && !movement::is_inside_word(&display_map, display_range.end))
7095 {
7096 // TODO: This is n^2, because we might check all the selections
7097 if !selections
7098 .iter()
7099 .any(|selection| selection.range().overlaps(&offset_range))
7100 {
7101 next_selected_range = Some(offset_range);
7102 break;
7103 }
7104 }
7105 }
7106
7107 if let Some(next_selected_range) = next_selected_range {
7108 select_next_match_ranges(
7109 self,
7110 next_selected_range,
7111 replace_newest,
7112 autoscroll,
7113 cx,
7114 );
7115 } else {
7116 select_next_state.done = true;
7117 }
7118 }
7119
7120 self.select_next_state = Some(select_next_state);
7121 } else {
7122 let mut only_carets = true;
7123 let mut same_text_selected = true;
7124 let mut selected_text = None;
7125
7126 let mut selections_iter = selections.iter().peekable();
7127 while let Some(selection) = selections_iter.next() {
7128 if selection.start != selection.end {
7129 only_carets = false;
7130 }
7131
7132 if same_text_selected {
7133 if selected_text.is_none() {
7134 selected_text =
7135 Some(buffer.text_for_range(selection.range()).collect::<String>());
7136 }
7137
7138 if let Some(next_selection) = selections_iter.peek() {
7139 if next_selection.range().len() == selection.range().len() {
7140 let next_selected_text = buffer
7141 .text_for_range(next_selection.range())
7142 .collect::<String>();
7143 if Some(next_selected_text) != selected_text {
7144 same_text_selected = false;
7145 selected_text = None;
7146 }
7147 } else {
7148 same_text_selected = false;
7149 selected_text = None;
7150 }
7151 }
7152 }
7153 }
7154
7155 if only_carets {
7156 for selection in &mut selections {
7157 let word_range = movement::surrounding_word(
7158 &display_map,
7159 selection.start.to_display_point(&display_map),
7160 );
7161 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7162 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7163 selection.goal = SelectionGoal::None;
7164 selection.reversed = false;
7165 select_next_match_ranges(
7166 self,
7167 selection.start..selection.end,
7168 replace_newest,
7169 autoscroll,
7170 cx,
7171 );
7172 }
7173
7174 if selections.len() == 1 {
7175 let selection = selections
7176 .last()
7177 .expect("ensured that there's only one selection");
7178 let query = buffer
7179 .text_for_range(selection.start..selection.end)
7180 .collect::<String>();
7181 let is_empty = query.is_empty();
7182 let select_state = SelectNextState {
7183 query: AhoCorasick::new(&[query])?,
7184 wordwise: true,
7185 done: is_empty,
7186 };
7187 self.select_next_state = Some(select_state);
7188 } else {
7189 self.select_next_state = None;
7190 }
7191 } else if let Some(selected_text) = selected_text {
7192 self.select_next_state = Some(SelectNextState {
7193 query: AhoCorasick::new(&[selected_text])?,
7194 wordwise: false,
7195 done: false,
7196 });
7197 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7198 }
7199 }
7200 Ok(())
7201 }
7202
7203 pub fn select_all_matches(
7204 &mut self,
7205 _action: &SelectAllMatches,
7206 cx: &mut ViewContext<Self>,
7207 ) -> Result<()> {
7208 self.push_to_selection_history();
7209 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7210
7211 self.select_next_match_internal(&display_map, false, None, cx)?;
7212 let Some(select_next_state) = self.select_next_state.as_mut() else {
7213 return Ok(());
7214 };
7215 if select_next_state.done {
7216 return Ok(());
7217 }
7218
7219 let mut new_selections = self.selections.all::<usize>(cx);
7220
7221 let buffer = &display_map.buffer_snapshot;
7222 let query_matches = select_next_state
7223 .query
7224 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7225
7226 for query_match in query_matches {
7227 let query_match = query_match.unwrap(); // can only fail due to I/O
7228 let offset_range = query_match.start()..query_match.end();
7229 let display_range = offset_range.start.to_display_point(&display_map)
7230 ..offset_range.end.to_display_point(&display_map);
7231
7232 if !select_next_state.wordwise
7233 || (!movement::is_inside_word(&display_map, display_range.start)
7234 && !movement::is_inside_word(&display_map, display_range.end))
7235 {
7236 self.selections.change_with(cx, |selections| {
7237 new_selections.push(Selection {
7238 id: selections.new_selection_id(),
7239 start: offset_range.start,
7240 end: offset_range.end,
7241 reversed: false,
7242 goal: SelectionGoal::None,
7243 });
7244 });
7245 }
7246 }
7247
7248 new_selections.sort_by_key(|selection| selection.start);
7249 let mut ix = 0;
7250 while ix + 1 < new_selections.len() {
7251 let current_selection = &new_selections[ix];
7252 let next_selection = &new_selections[ix + 1];
7253 if current_selection.range().overlaps(&next_selection.range()) {
7254 if current_selection.id < next_selection.id {
7255 new_selections.remove(ix + 1);
7256 } else {
7257 new_selections.remove(ix);
7258 }
7259 } else {
7260 ix += 1;
7261 }
7262 }
7263
7264 select_next_state.done = true;
7265 self.unfold_ranges(
7266 new_selections.iter().map(|selection| selection.range()),
7267 false,
7268 false,
7269 cx,
7270 );
7271 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7272 selections.select(new_selections)
7273 });
7274
7275 Ok(())
7276 }
7277
7278 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7279 self.push_to_selection_history();
7280 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7281 self.select_next_match_internal(
7282 &display_map,
7283 action.replace_newest,
7284 Some(Autoscroll::newest()),
7285 cx,
7286 )?;
7287 Ok(())
7288 }
7289
7290 pub fn select_previous(
7291 &mut self,
7292 action: &SelectPrevious,
7293 cx: &mut ViewContext<Self>,
7294 ) -> Result<()> {
7295 self.push_to_selection_history();
7296 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7297 let buffer = &display_map.buffer_snapshot;
7298 let mut selections = self.selections.all::<usize>(cx);
7299 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7300 let query = &select_prev_state.query;
7301 if !select_prev_state.done {
7302 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7303 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7304 let mut next_selected_range = None;
7305 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7306 let bytes_before_last_selection =
7307 buffer.reversed_bytes_in_range(0..last_selection.start);
7308 let bytes_after_first_selection =
7309 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7310 let query_matches = query
7311 .stream_find_iter(bytes_before_last_selection)
7312 .map(|result| (last_selection.start, result))
7313 .chain(
7314 query
7315 .stream_find_iter(bytes_after_first_selection)
7316 .map(|result| (buffer.len(), result)),
7317 );
7318 for (end_offset, query_match) in query_matches {
7319 let query_match = query_match.unwrap(); // can only fail due to I/O
7320 let offset_range =
7321 end_offset - query_match.end()..end_offset - query_match.start();
7322 let display_range = offset_range.start.to_display_point(&display_map)
7323 ..offset_range.end.to_display_point(&display_map);
7324
7325 if !select_prev_state.wordwise
7326 || (!movement::is_inside_word(&display_map, display_range.start)
7327 && !movement::is_inside_word(&display_map, display_range.end))
7328 {
7329 next_selected_range = Some(offset_range);
7330 break;
7331 }
7332 }
7333
7334 if let Some(next_selected_range) = next_selected_range {
7335 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7336 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7337 if action.replace_newest {
7338 s.delete(s.newest_anchor().id);
7339 }
7340 s.insert_range(next_selected_range);
7341 });
7342 } else {
7343 select_prev_state.done = true;
7344 }
7345 }
7346
7347 self.select_prev_state = Some(select_prev_state);
7348 } else {
7349 let mut only_carets = true;
7350 let mut same_text_selected = true;
7351 let mut selected_text = None;
7352
7353 let mut selections_iter = selections.iter().peekable();
7354 while let Some(selection) = selections_iter.next() {
7355 if selection.start != selection.end {
7356 only_carets = false;
7357 }
7358
7359 if same_text_selected {
7360 if selected_text.is_none() {
7361 selected_text =
7362 Some(buffer.text_for_range(selection.range()).collect::<String>());
7363 }
7364
7365 if let Some(next_selection) = selections_iter.peek() {
7366 if next_selection.range().len() == selection.range().len() {
7367 let next_selected_text = buffer
7368 .text_for_range(next_selection.range())
7369 .collect::<String>();
7370 if Some(next_selected_text) != selected_text {
7371 same_text_selected = false;
7372 selected_text = None;
7373 }
7374 } else {
7375 same_text_selected = false;
7376 selected_text = None;
7377 }
7378 }
7379 }
7380 }
7381
7382 if only_carets {
7383 for selection in &mut selections {
7384 let word_range = movement::surrounding_word(
7385 &display_map,
7386 selection.start.to_display_point(&display_map),
7387 );
7388 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7389 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7390 selection.goal = SelectionGoal::None;
7391 selection.reversed = false;
7392 }
7393 if selections.len() == 1 {
7394 let selection = selections
7395 .last()
7396 .expect("ensured that there's only one selection");
7397 let query = buffer
7398 .text_for_range(selection.start..selection.end)
7399 .collect::<String>();
7400 let is_empty = query.is_empty();
7401 let select_state = SelectNextState {
7402 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7403 wordwise: true,
7404 done: is_empty,
7405 };
7406 self.select_prev_state = Some(select_state);
7407 } else {
7408 self.select_prev_state = None;
7409 }
7410
7411 self.unfold_ranges(
7412 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7413 false,
7414 true,
7415 cx,
7416 );
7417 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7418 s.select(selections);
7419 });
7420 } else if let Some(selected_text) = selected_text {
7421 self.select_prev_state = Some(SelectNextState {
7422 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7423 wordwise: false,
7424 done: false,
7425 });
7426 self.select_previous(action, cx)?;
7427 }
7428 }
7429 Ok(())
7430 }
7431
7432 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7433 let text_layout_details = &self.text_layout_details(cx);
7434 self.transact(cx, |this, cx| {
7435 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7436 let mut edits = Vec::new();
7437 let mut selection_edit_ranges = Vec::new();
7438 let mut last_toggled_row = None;
7439 let snapshot = this.buffer.read(cx).read(cx);
7440 let empty_str: Arc<str> = "".into();
7441 let mut suffixes_inserted = Vec::new();
7442
7443 fn comment_prefix_range(
7444 snapshot: &MultiBufferSnapshot,
7445 row: MultiBufferRow,
7446 comment_prefix: &str,
7447 comment_prefix_whitespace: &str,
7448 ) -> Range<Point> {
7449 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7450
7451 let mut line_bytes = snapshot
7452 .bytes_in_range(start..snapshot.max_point())
7453 .flatten()
7454 .copied();
7455
7456 // If this line currently begins with the line comment prefix, then record
7457 // the range containing the prefix.
7458 if line_bytes
7459 .by_ref()
7460 .take(comment_prefix.len())
7461 .eq(comment_prefix.bytes())
7462 {
7463 // Include any whitespace that matches the comment prefix.
7464 let matching_whitespace_len = line_bytes
7465 .zip(comment_prefix_whitespace.bytes())
7466 .take_while(|(a, b)| a == b)
7467 .count() as u32;
7468 let end = Point::new(
7469 start.row,
7470 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7471 );
7472 start..end
7473 } else {
7474 start..start
7475 }
7476 }
7477
7478 fn comment_suffix_range(
7479 snapshot: &MultiBufferSnapshot,
7480 row: MultiBufferRow,
7481 comment_suffix: &str,
7482 comment_suffix_has_leading_space: bool,
7483 ) -> Range<Point> {
7484 let end = Point::new(row.0, snapshot.line_len(row));
7485 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7486
7487 let mut line_end_bytes = snapshot
7488 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7489 .flatten()
7490 .copied();
7491
7492 let leading_space_len = if suffix_start_column > 0
7493 && line_end_bytes.next() == Some(b' ')
7494 && comment_suffix_has_leading_space
7495 {
7496 1
7497 } else {
7498 0
7499 };
7500
7501 // If this line currently begins with the line comment prefix, then record
7502 // the range containing the prefix.
7503 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7504 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7505 start..end
7506 } else {
7507 end..end
7508 }
7509 }
7510
7511 // TODO: Handle selections that cross excerpts
7512 for selection in &mut selections {
7513 let start_column = snapshot
7514 .indent_size_for_line(MultiBufferRow(selection.start.row))
7515 .len;
7516 let language = if let Some(language) =
7517 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7518 {
7519 language
7520 } else {
7521 continue;
7522 };
7523
7524 selection_edit_ranges.clear();
7525
7526 // If multiple selections contain a given row, avoid processing that
7527 // row more than once.
7528 let mut start_row = MultiBufferRow(selection.start.row);
7529 if last_toggled_row == Some(start_row) {
7530 start_row = start_row.next_row();
7531 }
7532 let end_row =
7533 if selection.end.row > selection.start.row && selection.end.column == 0 {
7534 MultiBufferRow(selection.end.row - 1)
7535 } else {
7536 MultiBufferRow(selection.end.row)
7537 };
7538 last_toggled_row = Some(end_row);
7539
7540 if start_row > end_row {
7541 continue;
7542 }
7543
7544 // If the language has line comments, toggle those.
7545 let full_comment_prefixes = language.line_comment_prefixes();
7546 if !full_comment_prefixes.is_empty() {
7547 let first_prefix = full_comment_prefixes
7548 .first()
7549 .expect("prefixes is non-empty");
7550 let prefix_trimmed_lengths = full_comment_prefixes
7551 .iter()
7552 .map(|p| p.trim_end_matches(' ').len())
7553 .collect::<SmallVec<[usize; 4]>>();
7554
7555 let mut all_selection_lines_are_comments = true;
7556
7557 for row in start_row.0..=end_row.0 {
7558 let row = MultiBufferRow(row);
7559 if start_row < end_row && snapshot.is_line_blank(row) {
7560 continue;
7561 }
7562
7563 let prefix_range = full_comment_prefixes
7564 .iter()
7565 .zip(prefix_trimmed_lengths.iter().copied())
7566 .map(|(prefix, trimmed_prefix_len)| {
7567 comment_prefix_range(
7568 snapshot.deref(),
7569 row,
7570 &prefix[..trimmed_prefix_len],
7571 &prefix[trimmed_prefix_len..],
7572 )
7573 })
7574 .max_by_key(|range| range.end.column - range.start.column)
7575 .expect("prefixes is non-empty");
7576
7577 if prefix_range.is_empty() {
7578 all_selection_lines_are_comments = false;
7579 }
7580
7581 selection_edit_ranges.push(prefix_range);
7582 }
7583
7584 if all_selection_lines_are_comments {
7585 edits.extend(
7586 selection_edit_ranges
7587 .iter()
7588 .cloned()
7589 .map(|range| (range, empty_str.clone())),
7590 );
7591 } else {
7592 let min_column = selection_edit_ranges
7593 .iter()
7594 .map(|range| range.start.column)
7595 .min()
7596 .unwrap_or(0);
7597 edits.extend(selection_edit_ranges.iter().map(|range| {
7598 let position = Point::new(range.start.row, min_column);
7599 (position..position, first_prefix.clone())
7600 }));
7601 }
7602 } else if let Some((full_comment_prefix, comment_suffix)) =
7603 language.block_comment_delimiters()
7604 {
7605 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7606 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7607 let prefix_range = comment_prefix_range(
7608 snapshot.deref(),
7609 start_row,
7610 comment_prefix,
7611 comment_prefix_whitespace,
7612 );
7613 let suffix_range = comment_suffix_range(
7614 snapshot.deref(),
7615 end_row,
7616 comment_suffix.trim_start_matches(' '),
7617 comment_suffix.starts_with(' '),
7618 );
7619
7620 if prefix_range.is_empty() || suffix_range.is_empty() {
7621 edits.push((
7622 prefix_range.start..prefix_range.start,
7623 full_comment_prefix.clone(),
7624 ));
7625 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7626 suffixes_inserted.push((end_row, comment_suffix.len()));
7627 } else {
7628 edits.push((prefix_range, empty_str.clone()));
7629 edits.push((suffix_range, empty_str.clone()));
7630 }
7631 } else {
7632 continue;
7633 }
7634 }
7635
7636 drop(snapshot);
7637 this.buffer.update(cx, |buffer, cx| {
7638 buffer.edit(edits, None, cx);
7639 });
7640
7641 // Adjust selections so that they end before any comment suffixes that
7642 // were inserted.
7643 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7644 let mut selections = this.selections.all::<Point>(cx);
7645 let snapshot = this.buffer.read(cx).read(cx);
7646 for selection in &mut selections {
7647 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7648 match row.cmp(&MultiBufferRow(selection.end.row)) {
7649 Ordering::Less => {
7650 suffixes_inserted.next();
7651 continue;
7652 }
7653 Ordering::Greater => break,
7654 Ordering::Equal => {
7655 if selection.end.column == snapshot.line_len(row) {
7656 if selection.is_empty() {
7657 selection.start.column -= suffix_len as u32;
7658 }
7659 selection.end.column -= suffix_len as u32;
7660 }
7661 break;
7662 }
7663 }
7664 }
7665 }
7666
7667 drop(snapshot);
7668 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7669
7670 let selections = this.selections.all::<Point>(cx);
7671 let selections_on_single_row = selections.windows(2).all(|selections| {
7672 selections[0].start.row == selections[1].start.row
7673 && selections[0].end.row == selections[1].end.row
7674 && selections[0].start.row == selections[0].end.row
7675 });
7676 let selections_selecting = selections
7677 .iter()
7678 .any(|selection| selection.start != selection.end);
7679 let advance_downwards = action.advance_downwards
7680 && selections_on_single_row
7681 && !selections_selecting
7682 && this.mode != EditorMode::SingleLine;
7683
7684 if advance_downwards {
7685 let snapshot = this.buffer.read(cx).snapshot(cx);
7686
7687 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7688 s.move_cursors_with(|display_snapshot, display_point, _| {
7689 let mut point = display_point.to_point(display_snapshot);
7690 point.row += 1;
7691 point = snapshot.clip_point(point, Bias::Left);
7692 let display_point = point.to_display_point(display_snapshot);
7693 let goal = SelectionGoal::HorizontalPosition(
7694 display_snapshot
7695 .x_for_display_point(display_point, &text_layout_details)
7696 .into(),
7697 );
7698 (display_point, goal)
7699 })
7700 });
7701 }
7702 });
7703 }
7704
7705 pub fn select_larger_syntax_node(
7706 &mut self,
7707 _: &SelectLargerSyntaxNode,
7708 cx: &mut ViewContext<Self>,
7709 ) {
7710 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7711 let buffer = self.buffer.read(cx).snapshot(cx);
7712 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7713
7714 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7715 let mut selected_larger_node = false;
7716 let new_selections = old_selections
7717 .iter()
7718 .map(|selection| {
7719 let old_range = selection.start..selection.end;
7720 let mut new_range = old_range.clone();
7721 while let Some(containing_range) =
7722 buffer.range_for_syntax_ancestor(new_range.clone())
7723 {
7724 new_range = containing_range;
7725 if !display_map.intersects_fold(new_range.start)
7726 && !display_map.intersects_fold(new_range.end)
7727 {
7728 break;
7729 }
7730 }
7731
7732 selected_larger_node |= new_range != old_range;
7733 Selection {
7734 id: selection.id,
7735 start: new_range.start,
7736 end: new_range.end,
7737 goal: SelectionGoal::None,
7738 reversed: selection.reversed,
7739 }
7740 })
7741 .collect::<Vec<_>>();
7742
7743 if selected_larger_node {
7744 stack.push(old_selections);
7745 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7746 s.select(new_selections);
7747 });
7748 }
7749 self.select_larger_syntax_node_stack = stack;
7750 }
7751
7752 pub fn select_smaller_syntax_node(
7753 &mut self,
7754 _: &SelectSmallerSyntaxNode,
7755 cx: &mut ViewContext<Self>,
7756 ) {
7757 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7758 if let Some(selections) = stack.pop() {
7759 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7760 s.select(selections.to_vec());
7761 });
7762 }
7763 self.select_larger_syntax_node_stack = stack;
7764 }
7765
7766 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7767 let project = self.project.clone();
7768 cx.spawn(|this, mut cx| async move {
7769 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7770 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7771 }) else {
7772 return;
7773 };
7774
7775 let Some(project) = project else {
7776 return;
7777 };
7778 if project
7779 .update(&mut cx, |this, _| this.is_remote())
7780 .unwrap_or(true)
7781 {
7782 // Do not display any test indicators in remote projects.
7783 return;
7784 }
7785 let new_rows =
7786 cx.background_executor()
7787 .spawn({
7788 let snapshot = display_snapshot.clone();
7789 async move {
7790 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7791 }
7792 })
7793 .await;
7794 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7795
7796 this.update(&mut cx, |this, _| {
7797 this.clear_tasks();
7798 for (key, value) in rows {
7799 this.insert_tasks(key, value);
7800 }
7801 })
7802 .ok();
7803 })
7804 }
7805 fn fetch_runnable_ranges(
7806 snapshot: &DisplaySnapshot,
7807 range: Range<Anchor>,
7808 ) -> Vec<language::RunnableRange> {
7809 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7810 }
7811
7812 fn runnable_rows(
7813 project: Model<Project>,
7814 snapshot: DisplaySnapshot,
7815 runnable_ranges: Vec<RunnableRange>,
7816 mut cx: AsyncWindowContext,
7817 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7818 runnable_ranges
7819 .into_iter()
7820 .filter_map(|mut runnable| {
7821 let (tasks, _) = cx
7822 .update(|cx| {
7823 Self::resolve_runnable(project.clone(), &mut runnable.runnable, cx)
7824 })
7825 .ok()?;
7826 if tasks.is_empty() {
7827 return None;
7828 }
7829
7830 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7831
7832 let row = snapshot
7833 .buffer_snapshot
7834 .buffer_line_for_row(MultiBufferRow(point.row))?
7835 .1
7836 .start
7837 .row;
7838
7839 Some((
7840 (runnable.buffer_id, row),
7841 (
7842 runnable.run_range.start,
7843 RunnableTasks {
7844 templates: tasks,
7845 column: point.column,
7846 extra_variables: runnable.extra_captures,
7847 },
7848 ),
7849 ))
7850 })
7851 .collect()
7852 }
7853
7854 fn resolve_runnable(
7855 project: Model<Project>,
7856 runnable: &mut Runnable,
7857 cx: &WindowContext<'_>,
7858 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7859 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7860 let worktree_id = project
7861 .buffer_for_id(runnable.buffer)
7862 .and_then(|buffer| buffer.read(cx).file())
7863 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7864
7865 (project.task_inventory().clone(), worktree_id)
7866 });
7867
7868 let inventory = inventory.read(cx);
7869 let tags = mem::take(&mut runnable.tags);
7870 let mut tags: Vec<_> = tags
7871 .into_iter()
7872 .flat_map(|tag| {
7873 let tag = tag.0.clone();
7874 inventory
7875 .list_tasks(Some(runnable.language.clone()), worktree_id)
7876 .into_iter()
7877 .filter(move |(_, template)| {
7878 template.tags.iter().any(|source_tag| source_tag == &tag)
7879 })
7880 })
7881 .sorted_by_key(|(kind, _)| kind.to_owned())
7882 .collect();
7883 if let Some((leading_tag_source, _)) = tags.first() {
7884 // Strongest source wins; if we have worktree tag binding, prefer that to
7885 // global and language bindings;
7886 // if we have a global binding, prefer that to language binding.
7887 let first_mismatch = tags
7888 .iter()
7889 .position(|(tag_source, _)| tag_source != leading_tag_source);
7890 if let Some(index) = first_mismatch {
7891 tags.truncate(index);
7892 }
7893 }
7894
7895 (tags, worktree_id)
7896 }
7897
7898 pub fn move_to_enclosing_bracket(
7899 &mut self,
7900 _: &MoveToEnclosingBracket,
7901 cx: &mut ViewContext<Self>,
7902 ) {
7903 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7904 s.move_offsets_with(|snapshot, selection| {
7905 let Some(enclosing_bracket_ranges) =
7906 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7907 else {
7908 return;
7909 };
7910
7911 let mut best_length = usize::MAX;
7912 let mut best_inside = false;
7913 let mut best_in_bracket_range = false;
7914 let mut best_destination = None;
7915 for (open, close) in enclosing_bracket_ranges {
7916 let close = close.to_inclusive();
7917 let length = close.end() - open.start;
7918 let inside = selection.start >= open.end && selection.end <= *close.start();
7919 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7920 || close.contains(&selection.head());
7921
7922 // If best is next to a bracket and current isn't, skip
7923 if !in_bracket_range && best_in_bracket_range {
7924 continue;
7925 }
7926
7927 // Prefer smaller lengths unless best is inside and current isn't
7928 if length > best_length && (best_inside || !inside) {
7929 continue;
7930 }
7931
7932 best_length = length;
7933 best_inside = inside;
7934 best_in_bracket_range = in_bracket_range;
7935 best_destination = Some(
7936 if close.contains(&selection.start) && close.contains(&selection.end) {
7937 if inside {
7938 open.end
7939 } else {
7940 open.start
7941 }
7942 } else {
7943 if inside {
7944 *close.start()
7945 } else {
7946 *close.end()
7947 }
7948 },
7949 );
7950 }
7951
7952 if let Some(destination) = best_destination {
7953 selection.collapse_to(destination, SelectionGoal::None);
7954 }
7955 })
7956 });
7957 }
7958
7959 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7960 self.end_selection(cx);
7961 self.selection_history.mode = SelectionHistoryMode::Undoing;
7962 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7963 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7964 self.select_next_state = entry.select_next_state;
7965 self.select_prev_state = entry.select_prev_state;
7966 self.add_selections_state = entry.add_selections_state;
7967 self.request_autoscroll(Autoscroll::newest(), cx);
7968 }
7969 self.selection_history.mode = SelectionHistoryMode::Normal;
7970 }
7971
7972 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7973 self.end_selection(cx);
7974 self.selection_history.mode = SelectionHistoryMode::Redoing;
7975 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7976 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7977 self.select_next_state = entry.select_next_state;
7978 self.select_prev_state = entry.select_prev_state;
7979 self.add_selections_state = entry.add_selections_state;
7980 self.request_autoscroll(Autoscroll::newest(), cx);
7981 }
7982 self.selection_history.mode = SelectionHistoryMode::Normal;
7983 }
7984
7985 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7986 let selections = self.selections.disjoint_anchors();
7987
7988 let lines = if action.lines == 0 { 3 } else { action.lines };
7989
7990 self.buffer.update(cx, |buffer, cx| {
7991 buffer.expand_excerpts(
7992 selections
7993 .into_iter()
7994 .map(|selection| selection.head().excerpt_id)
7995 .dedup(),
7996 lines,
7997 cx,
7998 )
7999 })
8000 }
8001
8002 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
8003 self.buffer
8004 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
8005 }
8006
8007 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8008 self.go_to_diagnostic_impl(Direction::Next, cx)
8009 }
8010
8011 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8012 self.go_to_diagnostic_impl(Direction::Prev, cx)
8013 }
8014
8015 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8016 let buffer = self.buffer.read(cx).snapshot(cx);
8017 let selection = self.selections.newest::<usize>(cx);
8018
8019 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8020 if direction == Direction::Next {
8021 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8022 let (group_id, jump_to) = popover.activation_info();
8023 if self.activate_diagnostics(group_id, cx) {
8024 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8025 let mut new_selection = s.newest_anchor().clone();
8026 new_selection.collapse_to(jump_to, SelectionGoal::None);
8027 s.select_anchors(vec![new_selection.clone()]);
8028 });
8029 }
8030 return;
8031 }
8032 }
8033
8034 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8035 active_diagnostics
8036 .primary_range
8037 .to_offset(&buffer)
8038 .to_inclusive()
8039 });
8040 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8041 if active_primary_range.contains(&selection.head()) {
8042 *active_primary_range.start()
8043 } else {
8044 selection.head()
8045 }
8046 } else {
8047 selection.head()
8048 };
8049 let snapshot = self.snapshot(cx);
8050 loop {
8051 let diagnostics = if direction == Direction::Prev {
8052 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8053 } else {
8054 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8055 }
8056 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8057 let group = diagnostics
8058 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8059 // be sorted in a stable way
8060 // skip until we are at current active diagnostic, if it exists
8061 .skip_while(|entry| {
8062 (match direction {
8063 Direction::Prev => entry.range.start >= search_start,
8064 Direction::Next => entry.range.start <= search_start,
8065 }) && self
8066 .active_diagnostics
8067 .as_ref()
8068 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8069 })
8070 .find_map(|entry| {
8071 if entry.diagnostic.is_primary
8072 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8073 && !entry.range.is_empty()
8074 // if we match with the active diagnostic, skip it
8075 && Some(entry.diagnostic.group_id)
8076 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8077 {
8078 Some((entry.range, entry.diagnostic.group_id))
8079 } else {
8080 None
8081 }
8082 });
8083
8084 if let Some((primary_range, group_id)) = group {
8085 if self.activate_diagnostics(group_id, cx) {
8086 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8087 s.select(vec![Selection {
8088 id: selection.id,
8089 start: primary_range.start,
8090 end: primary_range.start,
8091 reversed: false,
8092 goal: SelectionGoal::None,
8093 }]);
8094 });
8095 }
8096 break;
8097 } else {
8098 // Cycle around to the start of the buffer, potentially moving back to the start of
8099 // the currently active diagnostic.
8100 active_primary_range.take();
8101 if direction == Direction::Prev {
8102 if search_start == buffer.len() {
8103 break;
8104 } else {
8105 search_start = buffer.len();
8106 }
8107 } else if search_start == 0 {
8108 break;
8109 } else {
8110 search_start = 0;
8111 }
8112 }
8113 }
8114 }
8115
8116 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8117 let snapshot = self
8118 .display_map
8119 .update(cx, |display_map, cx| display_map.snapshot(cx));
8120 let selection = self.selections.newest::<Point>(cx);
8121
8122 if !self.seek_in_direction(
8123 &snapshot,
8124 selection.head(),
8125 false,
8126 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8127 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8128 ),
8129 cx,
8130 ) {
8131 let wrapped_point = Point::zero();
8132 self.seek_in_direction(
8133 &snapshot,
8134 wrapped_point,
8135 true,
8136 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8137 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8138 ),
8139 cx,
8140 );
8141 }
8142 }
8143
8144 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8145 let snapshot = self
8146 .display_map
8147 .update(cx, |display_map, cx| display_map.snapshot(cx));
8148 let selection = self.selections.newest::<Point>(cx);
8149
8150 if !self.seek_in_direction(
8151 &snapshot,
8152 selection.head(),
8153 false,
8154 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8155 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8156 ),
8157 cx,
8158 ) {
8159 let wrapped_point = snapshot.buffer_snapshot.max_point();
8160 self.seek_in_direction(
8161 &snapshot,
8162 wrapped_point,
8163 true,
8164 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8165 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8166 ),
8167 cx,
8168 );
8169 }
8170 }
8171
8172 fn seek_in_direction(
8173 &mut self,
8174 snapshot: &DisplaySnapshot,
8175 initial_point: Point,
8176 is_wrapped: bool,
8177 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8178 cx: &mut ViewContext<Editor>,
8179 ) -> bool {
8180 let display_point = initial_point.to_display_point(snapshot);
8181 let mut hunks = hunks
8182 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8183 .filter(|hunk| {
8184 if is_wrapped {
8185 true
8186 } else {
8187 !hunk.contains_display_row(display_point.row())
8188 }
8189 })
8190 .dedup();
8191
8192 if let Some(hunk) = hunks.next() {
8193 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8194 let row = hunk.start_display_row();
8195 let point = DisplayPoint::new(row, 0);
8196 s.select_display_ranges([point..point]);
8197 });
8198
8199 true
8200 } else {
8201 false
8202 }
8203 }
8204
8205 pub fn go_to_definition(
8206 &mut self,
8207 _: &GoToDefinition,
8208 cx: &mut ViewContext<Self>,
8209 ) -> Task<Result<bool>> {
8210 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8211 }
8212
8213 pub fn go_to_implementation(
8214 &mut self,
8215 _: &GoToImplementation,
8216 cx: &mut ViewContext<Self>,
8217 ) -> Task<Result<bool>> {
8218 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8219 }
8220
8221 pub fn go_to_implementation_split(
8222 &mut self,
8223 _: &GoToImplementationSplit,
8224 cx: &mut ViewContext<Self>,
8225 ) -> Task<Result<bool>> {
8226 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8227 }
8228
8229 pub fn go_to_type_definition(
8230 &mut self,
8231 _: &GoToTypeDefinition,
8232 cx: &mut ViewContext<Self>,
8233 ) -> Task<Result<bool>> {
8234 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8235 }
8236
8237 pub fn go_to_definition_split(
8238 &mut self,
8239 _: &GoToDefinitionSplit,
8240 cx: &mut ViewContext<Self>,
8241 ) -> Task<Result<bool>> {
8242 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8243 }
8244
8245 pub fn go_to_type_definition_split(
8246 &mut self,
8247 _: &GoToTypeDefinitionSplit,
8248 cx: &mut ViewContext<Self>,
8249 ) -> Task<Result<bool>> {
8250 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8251 }
8252
8253 fn go_to_definition_of_kind(
8254 &mut self,
8255 kind: GotoDefinitionKind,
8256 split: bool,
8257 cx: &mut ViewContext<Self>,
8258 ) -> Task<Result<bool>> {
8259 let Some(workspace) = self.workspace() else {
8260 return Task::ready(Ok(false));
8261 };
8262 let buffer = self.buffer.read(cx);
8263 let head = self.selections.newest::<usize>(cx).head();
8264 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8265 text_anchor
8266 } else {
8267 return Task::ready(Ok(false));
8268 };
8269
8270 let project = workspace.read(cx).project().clone();
8271 let definitions = project.update(cx, |project, cx| match kind {
8272 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8273 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8274 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8275 });
8276
8277 cx.spawn(|editor, mut cx| async move {
8278 let definitions = definitions.await?;
8279 let navigated = editor
8280 .update(&mut cx, |editor, cx| {
8281 editor.navigate_to_hover_links(
8282 Some(kind),
8283 definitions
8284 .into_iter()
8285 .filter(|location| {
8286 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8287 })
8288 .map(HoverLink::Text)
8289 .collect::<Vec<_>>(),
8290 split,
8291 cx,
8292 )
8293 })?
8294 .await?;
8295 anyhow::Ok(navigated)
8296 })
8297 }
8298
8299 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8300 let position = self.selections.newest_anchor().head();
8301 let Some((buffer, buffer_position)) =
8302 self.buffer.read(cx).text_anchor_for_position(position, cx)
8303 else {
8304 return;
8305 };
8306
8307 cx.spawn(|editor, mut cx| async move {
8308 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8309 editor.update(&mut cx, |_, cx| {
8310 cx.open_url(&url);
8311 })
8312 } else {
8313 Ok(())
8314 }
8315 })
8316 .detach();
8317 }
8318
8319 pub(crate) fn navigate_to_hover_links(
8320 &mut self,
8321 kind: Option<GotoDefinitionKind>,
8322 mut definitions: Vec<HoverLink>,
8323 split: bool,
8324 cx: &mut ViewContext<Editor>,
8325 ) -> Task<Result<bool>> {
8326 // If there is one definition, just open it directly
8327 if definitions.len() == 1 {
8328 let definition = definitions.pop().unwrap();
8329 let target_task = match definition {
8330 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8331 HoverLink::InlayHint(lsp_location, server_id) => {
8332 self.compute_target_location(lsp_location, server_id, cx)
8333 }
8334 HoverLink::Url(url) => {
8335 cx.open_url(&url);
8336 Task::ready(Ok(None))
8337 }
8338 };
8339 cx.spawn(|editor, mut cx| async move {
8340 let target = target_task.await.context("target resolution task")?;
8341 if let Some(target) = target {
8342 editor.update(&mut cx, |editor, cx| {
8343 let Some(workspace) = editor.workspace() else {
8344 return false;
8345 };
8346 let pane = workspace.read(cx).active_pane().clone();
8347
8348 let range = target.range.to_offset(target.buffer.read(cx));
8349 let range = editor.range_for_match(&range);
8350 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8351 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8352 s.select_ranges([range]);
8353 });
8354 } else {
8355 cx.window_context().defer(move |cx| {
8356 let target_editor: View<Self> =
8357 workspace.update(cx, |workspace, cx| {
8358 let pane = if split {
8359 workspace.adjacent_pane(cx)
8360 } else {
8361 workspace.active_pane().clone()
8362 };
8363
8364 workspace.open_project_item(pane, target.buffer.clone(), cx)
8365 });
8366 target_editor.update(cx, |target_editor, cx| {
8367 // When selecting a definition in a different buffer, disable the nav history
8368 // to avoid creating a history entry at the previous cursor location.
8369 pane.update(cx, |pane, _| pane.disable_history());
8370 target_editor.change_selections(
8371 Some(Autoscroll::focused()),
8372 cx,
8373 |s| {
8374 s.select_ranges([range]);
8375 },
8376 );
8377 pane.update(cx, |pane, _| pane.enable_history());
8378 });
8379 });
8380 }
8381 true
8382 })
8383 } else {
8384 Ok(false)
8385 }
8386 })
8387 } else if !definitions.is_empty() {
8388 let replica_id = self.replica_id(cx);
8389 cx.spawn(|editor, mut cx| async move {
8390 let (title, location_tasks, workspace) = editor
8391 .update(&mut cx, |editor, cx| {
8392 let tab_kind = match kind {
8393 Some(GotoDefinitionKind::Implementation) => "Implementations",
8394 _ => "Definitions",
8395 };
8396 let title = definitions
8397 .iter()
8398 .find_map(|definition| match definition {
8399 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8400 let buffer = origin.buffer.read(cx);
8401 format!(
8402 "{} for {}",
8403 tab_kind,
8404 buffer
8405 .text_for_range(origin.range.clone())
8406 .collect::<String>()
8407 )
8408 }),
8409 HoverLink::InlayHint(_, _) => None,
8410 HoverLink::Url(_) => None,
8411 })
8412 .unwrap_or(tab_kind.to_string());
8413 let location_tasks = definitions
8414 .into_iter()
8415 .map(|definition| match definition {
8416 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8417 HoverLink::InlayHint(lsp_location, server_id) => {
8418 editor.compute_target_location(lsp_location, server_id, cx)
8419 }
8420 HoverLink::Url(_) => Task::ready(Ok(None)),
8421 })
8422 .collect::<Vec<_>>();
8423 (title, location_tasks, editor.workspace().clone())
8424 })
8425 .context("location tasks preparation")?;
8426
8427 let locations = futures::future::join_all(location_tasks)
8428 .await
8429 .into_iter()
8430 .filter_map(|location| location.transpose())
8431 .collect::<Result<_>>()
8432 .context("location tasks")?;
8433
8434 let Some(workspace) = workspace else {
8435 return Ok(false);
8436 };
8437 let opened = workspace
8438 .update(&mut cx, |workspace, cx| {
8439 Self::open_locations_in_multibuffer(
8440 workspace, locations, replica_id, title, split, cx,
8441 )
8442 })
8443 .ok();
8444
8445 anyhow::Ok(opened.is_some())
8446 })
8447 } else {
8448 Task::ready(Ok(false))
8449 }
8450 }
8451
8452 fn compute_target_location(
8453 &self,
8454 lsp_location: lsp::Location,
8455 server_id: LanguageServerId,
8456 cx: &mut ViewContext<Editor>,
8457 ) -> Task<anyhow::Result<Option<Location>>> {
8458 let Some(project) = self.project.clone() else {
8459 return Task::Ready(Some(Ok(None)));
8460 };
8461
8462 cx.spawn(move |editor, mut cx| async move {
8463 let location_task = editor.update(&mut cx, |editor, cx| {
8464 project.update(cx, |project, cx| {
8465 let language_server_name =
8466 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8467 project
8468 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8469 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8470 });
8471 language_server_name.map(|language_server_name| {
8472 project.open_local_buffer_via_lsp(
8473 lsp_location.uri.clone(),
8474 server_id,
8475 language_server_name,
8476 cx,
8477 )
8478 })
8479 })
8480 })?;
8481 let location = match location_task {
8482 Some(task) => Some({
8483 let target_buffer_handle = task.await.context("open local buffer")?;
8484 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8485 let target_start = target_buffer
8486 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8487 let target_end = target_buffer
8488 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8489 target_buffer.anchor_after(target_start)
8490 ..target_buffer.anchor_before(target_end)
8491 })?;
8492 Location {
8493 buffer: target_buffer_handle,
8494 range,
8495 }
8496 }),
8497 None => None,
8498 };
8499 Ok(location)
8500 })
8501 }
8502
8503 pub fn find_all_references(
8504 &mut self,
8505 _: &FindAllReferences,
8506 cx: &mut ViewContext<Self>,
8507 ) -> Option<Task<Result<()>>> {
8508 let multi_buffer = self.buffer.read(cx);
8509 let selection = self.selections.newest::<usize>(cx);
8510 let head = selection.head();
8511
8512 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8513 let head_anchor = multi_buffer_snapshot.anchor_at(
8514 head,
8515 if head < selection.tail() {
8516 Bias::Right
8517 } else {
8518 Bias::Left
8519 },
8520 );
8521
8522 match self
8523 .find_all_references_task_sources
8524 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8525 {
8526 Ok(_) => {
8527 log::info!(
8528 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8529 );
8530 return None;
8531 }
8532 Err(i) => {
8533 self.find_all_references_task_sources.insert(i, head_anchor);
8534 }
8535 }
8536
8537 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8538 let replica_id = self.replica_id(cx);
8539 let workspace = self.workspace()?;
8540 let project = workspace.read(cx).project().clone();
8541 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8542 Some(cx.spawn(|editor, mut cx| async move {
8543 let _cleanup = defer({
8544 let mut cx = cx.clone();
8545 move || {
8546 let _ = editor.update(&mut cx, |editor, _| {
8547 if let Ok(i) =
8548 editor
8549 .find_all_references_task_sources
8550 .binary_search_by(|anchor| {
8551 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8552 })
8553 {
8554 editor.find_all_references_task_sources.remove(i);
8555 }
8556 });
8557 }
8558 });
8559
8560 let locations = references.await?;
8561 if locations.is_empty() {
8562 return anyhow::Ok(());
8563 }
8564
8565 workspace.update(&mut cx, |workspace, cx| {
8566 let title = locations
8567 .first()
8568 .as_ref()
8569 .map(|location| {
8570 let buffer = location.buffer.read(cx);
8571 format!(
8572 "References to `{}`",
8573 buffer
8574 .text_for_range(location.range.clone())
8575 .collect::<String>()
8576 )
8577 })
8578 .unwrap();
8579 Self::open_locations_in_multibuffer(
8580 workspace, locations, replica_id, title, false, cx,
8581 );
8582 })
8583 }))
8584 }
8585
8586 /// Opens a multibuffer with the given project locations in it
8587 pub fn open_locations_in_multibuffer(
8588 workspace: &mut Workspace,
8589 mut locations: Vec<Location>,
8590 replica_id: ReplicaId,
8591 title: String,
8592 split: bool,
8593 cx: &mut ViewContext<Workspace>,
8594 ) {
8595 // If there are multiple definitions, open them in a multibuffer
8596 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8597 let mut locations = locations.into_iter().peekable();
8598 let mut ranges_to_highlight = Vec::new();
8599 let capability = workspace.project().read(cx).capability();
8600
8601 let excerpt_buffer = cx.new_model(|cx| {
8602 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8603 while let Some(location) = locations.next() {
8604 let buffer = location.buffer.read(cx);
8605 let mut ranges_for_buffer = Vec::new();
8606 let range = location.range.to_offset(buffer);
8607 ranges_for_buffer.push(range.clone());
8608
8609 while let Some(next_location) = locations.peek() {
8610 if next_location.buffer == location.buffer {
8611 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8612 locations.next();
8613 } else {
8614 break;
8615 }
8616 }
8617
8618 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8619 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8620 location.buffer.clone(),
8621 ranges_for_buffer,
8622 DEFAULT_MULTIBUFFER_CONTEXT,
8623 cx,
8624 ))
8625 }
8626
8627 multibuffer.with_title(title)
8628 });
8629
8630 let editor = cx.new_view(|cx| {
8631 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8632 });
8633 editor.update(cx, |editor, cx| {
8634 editor.highlight_background::<Self>(
8635 &ranges_to_highlight,
8636 |theme| theme.editor_highlighted_line_background,
8637 cx,
8638 );
8639 });
8640
8641 let item = Box::new(editor);
8642 let item_id = item.item_id();
8643
8644 if split {
8645 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8646 } else {
8647 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8648 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8649 pane.close_current_preview_item(cx)
8650 } else {
8651 None
8652 }
8653 });
8654 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8655 }
8656 workspace.active_pane().update(cx, |pane, cx| {
8657 pane.set_preview_item_id(Some(item_id), cx);
8658 });
8659 }
8660
8661 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8662 use language::ToOffset as _;
8663
8664 let project = self.project.clone()?;
8665 let selection = self.selections.newest_anchor().clone();
8666 let (cursor_buffer, cursor_buffer_position) = self
8667 .buffer
8668 .read(cx)
8669 .text_anchor_for_position(selection.head(), cx)?;
8670 let (tail_buffer, cursor_buffer_position_end) = self
8671 .buffer
8672 .read(cx)
8673 .text_anchor_for_position(selection.tail(), cx)?;
8674 if tail_buffer != cursor_buffer {
8675 return None;
8676 }
8677
8678 let snapshot = cursor_buffer.read(cx).snapshot();
8679 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8680 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8681 let prepare_rename = project.update(cx, |project, cx| {
8682 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8683 });
8684 drop(snapshot);
8685
8686 Some(cx.spawn(|this, mut cx| async move {
8687 let rename_range = if let Some(range) = prepare_rename.await? {
8688 Some(range)
8689 } else {
8690 this.update(&mut cx, |this, cx| {
8691 let buffer = this.buffer.read(cx).snapshot(cx);
8692 let mut buffer_highlights = this
8693 .document_highlights_for_position(selection.head(), &buffer)
8694 .filter(|highlight| {
8695 highlight.start.excerpt_id == selection.head().excerpt_id
8696 && highlight.end.excerpt_id == selection.head().excerpt_id
8697 });
8698 buffer_highlights
8699 .next()
8700 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8701 })?
8702 };
8703 if let Some(rename_range) = rename_range {
8704 this.update(&mut cx, |this, cx| {
8705 let snapshot = cursor_buffer.read(cx).snapshot();
8706 let rename_buffer_range = rename_range.to_offset(&snapshot);
8707 let cursor_offset_in_rename_range =
8708 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8709 let cursor_offset_in_rename_range_end =
8710 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8711
8712 this.take_rename(false, cx);
8713 let buffer = this.buffer.read(cx).read(cx);
8714 let cursor_offset = selection.head().to_offset(&buffer);
8715 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8716 let rename_end = rename_start + rename_buffer_range.len();
8717 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8718 let mut old_highlight_id = None;
8719 let old_name: Arc<str> = buffer
8720 .chunks(rename_start..rename_end, true)
8721 .map(|chunk| {
8722 if old_highlight_id.is_none() {
8723 old_highlight_id = chunk.syntax_highlight_id;
8724 }
8725 chunk.text
8726 })
8727 .collect::<String>()
8728 .into();
8729
8730 drop(buffer);
8731
8732 // Position the selection in the rename editor so that it matches the current selection.
8733 this.show_local_selections = false;
8734 let rename_editor = cx.new_view(|cx| {
8735 let mut editor = Editor::single_line(cx);
8736 editor.buffer.update(cx, |buffer, cx| {
8737 buffer.edit([(0..0, old_name.clone())], None, cx)
8738 });
8739 let rename_selection_range = match cursor_offset_in_rename_range
8740 .cmp(&cursor_offset_in_rename_range_end)
8741 {
8742 Ordering::Equal => {
8743 editor.select_all(&SelectAll, cx);
8744 return editor;
8745 }
8746 Ordering::Less => {
8747 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8748 }
8749 Ordering::Greater => {
8750 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8751 }
8752 };
8753 if rename_selection_range.end > old_name.len() {
8754 editor.select_all(&SelectAll, cx);
8755 } else {
8756 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8757 s.select_ranges([rename_selection_range]);
8758 });
8759 }
8760 editor
8761 });
8762
8763 let write_highlights =
8764 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8765 let read_highlights =
8766 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8767 let ranges = write_highlights
8768 .iter()
8769 .flat_map(|(_, ranges)| ranges.iter())
8770 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8771 .cloned()
8772 .collect();
8773
8774 this.highlight_text::<Rename>(
8775 ranges,
8776 HighlightStyle {
8777 fade_out: Some(0.6),
8778 ..Default::default()
8779 },
8780 cx,
8781 );
8782 let rename_focus_handle = rename_editor.focus_handle(cx);
8783 cx.focus(&rename_focus_handle);
8784 let block_id = this.insert_blocks(
8785 [BlockProperties {
8786 style: BlockStyle::Flex,
8787 position: range.start,
8788 height: 1,
8789 render: Box::new({
8790 let rename_editor = rename_editor.clone();
8791 move |cx: &mut BlockContext| {
8792 let mut text_style = cx.editor_style.text.clone();
8793 if let Some(highlight_style) = old_highlight_id
8794 .and_then(|h| h.style(&cx.editor_style.syntax))
8795 {
8796 text_style = text_style.highlight(highlight_style);
8797 }
8798 div()
8799 .pl(cx.anchor_x)
8800 .child(EditorElement::new(
8801 &rename_editor,
8802 EditorStyle {
8803 background: cx.theme().system().transparent,
8804 local_player: cx.editor_style.local_player,
8805 text: text_style,
8806 scrollbar_width: cx.editor_style.scrollbar_width,
8807 syntax: cx.editor_style.syntax.clone(),
8808 status: cx.editor_style.status.clone(),
8809 inlay_hints_style: HighlightStyle {
8810 color: Some(cx.theme().status().hint),
8811 font_weight: Some(FontWeight::BOLD),
8812 ..HighlightStyle::default()
8813 },
8814 suggestions_style: HighlightStyle {
8815 color: Some(cx.theme().status().predictive),
8816 ..HighlightStyle::default()
8817 },
8818 },
8819 ))
8820 .into_any_element()
8821 }
8822 }),
8823 disposition: BlockDisposition::Below,
8824 }],
8825 Some(Autoscroll::fit()),
8826 cx,
8827 )[0];
8828 this.pending_rename = Some(RenameState {
8829 range,
8830 old_name,
8831 editor: rename_editor,
8832 block_id,
8833 });
8834 })?;
8835 }
8836
8837 Ok(())
8838 }))
8839 }
8840
8841 pub fn confirm_rename(
8842 &mut self,
8843 _: &ConfirmRename,
8844 cx: &mut ViewContext<Self>,
8845 ) -> Option<Task<Result<()>>> {
8846 let rename = self.take_rename(false, cx)?;
8847 let workspace = self.workspace()?;
8848 let (start_buffer, start) = self
8849 .buffer
8850 .read(cx)
8851 .text_anchor_for_position(rename.range.start, cx)?;
8852 let (end_buffer, end) = self
8853 .buffer
8854 .read(cx)
8855 .text_anchor_for_position(rename.range.end, cx)?;
8856 if start_buffer != end_buffer {
8857 return None;
8858 }
8859
8860 let buffer = start_buffer;
8861 let range = start..end;
8862 let old_name = rename.old_name;
8863 let new_name = rename.editor.read(cx).text(cx);
8864
8865 let rename = workspace
8866 .read(cx)
8867 .project()
8868 .clone()
8869 .update(cx, |project, cx| {
8870 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8871 });
8872 let workspace = workspace.downgrade();
8873
8874 Some(cx.spawn(|editor, mut cx| async move {
8875 let project_transaction = rename.await?;
8876 Self::open_project_transaction(
8877 &editor,
8878 workspace,
8879 project_transaction,
8880 format!("Rename: {} → {}", old_name, new_name),
8881 cx.clone(),
8882 )
8883 .await?;
8884
8885 editor.update(&mut cx, |editor, cx| {
8886 editor.refresh_document_highlights(cx);
8887 })?;
8888 Ok(())
8889 }))
8890 }
8891
8892 fn take_rename(
8893 &mut self,
8894 moving_cursor: bool,
8895 cx: &mut ViewContext<Self>,
8896 ) -> Option<RenameState> {
8897 let rename = self.pending_rename.take()?;
8898 if rename.editor.focus_handle(cx).is_focused(cx) {
8899 cx.focus(&self.focus_handle);
8900 }
8901
8902 self.remove_blocks(
8903 [rename.block_id].into_iter().collect(),
8904 Some(Autoscroll::fit()),
8905 cx,
8906 );
8907 self.clear_highlights::<Rename>(cx);
8908 self.show_local_selections = true;
8909
8910 if moving_cursor {
8911 let rename_editor = rename.editor.read(cx);
8912 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8913
8914 // Update the selection to match the position of the selection inside
8915 // the rename editor.
8916 let snapshot = self.buffer.read(cx).read(cx);
8917 let rename_range = rename.range.to_offset(&snapshot);
8918 let cursor_in_editor = snapshot
8919 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8920 .min(rename_range.end);
8921 drop(snapshot);
8922
8923 self.change_selections(None, cx, |s| {
8924 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8925 });
8926 } else {
8927 self.refresh_document_highlights(cx);
8928 }
8929
8930 Some(rename)
8931 }
8932
8933 pub fn pending_rename(&self) -> Option<&RenameState> {
8934 self.pending_rename.as_ref()
8935 }
8936
8937 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8938 let project = match &self.project {
8939 Some(project) => project.clone(),
8940 None => return None,
8941 };
8942
8943 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8944 }
8945
8946 fn perform_format(
8947 &mut self,
8948 project: Model<Project>,
8949 trigger: FormatTrigger,
8950 cx: &mut ViewContext<Self>,
8951 ) -> Task<Result<()>> {
8952 let buffer = self.buffer().clone();
8953 let mut buffers = buffer.read(cx).all_buffers();
8954 if trigger == FormatTrigger::Save {
8955 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8956 }
8957
8958 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8959 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8960
8961 cx.spawn(|_, mut cx| async move {
8962 let transaction = futures::select_biased! {
8963 () = timeout => {
8964 log::warn!("timed out waiting for formatting");
8965 None
8966 }
8967 transaction = format.log_err().fuse() => transaction,
8968 };
8969
8970 buffer
8971 .update(&mut cx, |buffer, cx| {
8972 if let Some(transaction) = transaction {
8973 if !buffer.is_singleton() {
8974 buffer.push_transaction(&transaction.0, cx);
8975 }
8976 }
8977
8978 cx.notify();
8979 })
8980 .ok();
8981
8982 Ok(())
8983 })
8984 }
8985
8986 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8987 if let Some(project) = self.project.clone() {
8988 self.buffer.update(cx, |multi_buffer, cx| {
8989 project.update(cx, |project, cx| {
8990 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8991 });
8992 })
8993 }
8994 }
8995
8996 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8997 cx.show_character_palette();
8998 }
8999
9000 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9001 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9002 let buffer = self.buffer.read(cx).snapshot(cx);
9003 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9004 let is_valid = buffer
9005 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9006 .any(|entry| {
9007 entry.diagnostic.is_primary
9008 && !entry.range.is_empty()
9009 && entry.range.start == primary_range_start
9010 && entry.diagnostic.message == active_diagnostics.primary_message
9011 });
9012
9013 if is_valid != active_diagnostics.is_valid {
9014 active_diagnostics.is_valid = is_valid;
9015 let mut new_styles = HashMap::default();
9016 for (block_id, diagnostic) in &active_diagnostics.blocks {
9017 new_styles.insert(
9018 *block_id,
9019 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9020 );
9021 }
9022 self.display_map
9023 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9024 }
9025 }
9026 }
9027
9028 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9029 self.dismiss_diagnostics(cx);
9030 let snapshot = self.snapshot(cx);
9031 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9032 let buffer = self.buffer.read(cx).snapshot(cx);
9033
9034 let mut primary_range = None;
9035 let mut primary_message = None;
9036 let mut group_end = Point::zero();
9037 let diagnostic_group = buffer
9038 .diagnostic_group::<MultiBufferPoint>(group_id)
9039 .filter_map(|entry| {
9040 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9041 && (entry.range.start.row == entry.range.end.row
9042 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9043 {
9044 return None;
9045 }
9046 if entry.range.end > group_end {
9047 group_end = entry.range.end;
9048 }
9049 if entry.diagnostic.is_primary {
9050 primary_range = Some(entry.range.clone());
9051 primary_message = Some(entry.diagnostic.message.clone());
9052 }
9053 Some(entry)
9054 })
9055 .collect::<Vec<_>>();
9056 let primary_range = primary_range?;
9057 let primary_message = primary_message?;
9058 let primary_range =
9059 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9060
9061 let blocks = display_map
9062 .insert_blocks(
9063 diagnostic_group.iter().map(|entry| {
9064 let diagnostic = entry.diagnostic.clone();
9065 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9066 BlockProperties {
9067 style: BlockStyle::Fixed,
9068 position: buffer.anchor_after(entry.range.start),
9069 height: message_height,
9070 render: diagnostic_block_renderer(diagnostic, true),
9071 disposition: BlockDisposition::Below,
9072 }
9073 }),
9074 cx,
9075 )
9076 .into_iter()
9077 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9078 .collect();
9079
9080 Some(ActiveDiagnosticGroup {
9081 primary_range,
9082 primary_message,
9083 group_id,
9084 blocks,
9085 is_valid: true,
9086 })
9087 });
9088 self.active_diagnostics.is_some()
9089 }
9090
9091 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9092 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9093 self.display_map.update(cx, |display_map, cx| {
9094 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9095 });
9096 cx.notify();
9097 }
9098 }
9099
9100 pub fn set_selections_from_remote(
9101 &mut self,
9102 selections: Vec<Selection<Anchor>>,
9103 pending_selection: Option<Selection<Anchor>>,
9104 cx: &mut ViewContext<Self>,
9105 ) {
9106 let old_cursor_position = self.selections.newest_anchor().head();
9107 self.selections.change_with(cx, |s| {
9108 s.select_anchors(selections);
9109 if let Some(pending_selection) = pending_selection {
9110 s.set_pending(pending_selection, SelectMode::Character);
9111 } else {
9112 s.clear_pending();
9113 }
9114 });
9115 self.selections_did_change(false, &old_cursor_position, cx);
9116 }
9117
9118 fn push_to_selection_history(&mut self) {
9119 self.selection_history.push(SelectionHistoryEntry {
9120 selections: self.selections.disjoint_anchors(),
9121 select_next_state: self.select_next_state.clone(),
9122 select_prev_state: self.select_prev_state.clone(),
9123 add_selections_state: self.add_selections_state.clone(),
9124 });
9125 }
9126
9127 pub fn transact(
9128 &mut self,
9129 cx: &mut ViewContext<Self>,
9130 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9131 ) -> Option<TransactionId> {
9132 self.start_transaction_at(Instant::now(), cx);
9133 update(self, cx);
9134 self.end_transaction_at(Instant::now(), cx)
9135 }
9136
9137 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9138 self.end_selection(cx);
9139 if let Some(tx_id) = self
9140 .buffer
9141 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9142 {
9143 self.selection_history
9144 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9145 cx.emit(EditorEvent::TransactionBegun {
9146 transaction_id: tx_id,
9147 })
9148 }
9149 }
9150
9151 fn end_transaction_at(
9152 &mut self,
9153 now: Instant,
9154 cx: &mut ViewContext<Self>,
9155 ) -> Option<TransactionId> {
9156 if let Some(tx_id) = self
9157 .buffer
9158 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9159 {
9160 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9161 *end_selections = Some(self.selections.disjoint_anchors());
9162 } else {
9163 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9164 }
9165
9166 cx.emit(EditorEvent::Edited);
9167 Some(tx_id)
9168 } else {
9169 None
9170 }
9171 }
9172
9173 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9174 let mut fold_ranges = Vec::new();
9175
9176 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9177
9178 let selections = self.selections.all_adjusted(cx);
9179 for selection in selections {
9180 let range = selection.range().sorted();
9181 let buffer_start_row = range.start.row;
9182
9183 for row in (0..=range.end.row).rev() {
9184 let fold_range = display_map.foldable_range(MultiBufferRow(row));
9185
9186 if let Some(fold_range) = fold_range {
9187 if fold_range.end.row >= buffer_start_row {
9188 fold_ranges.push(fold_range);
9189 if row <= range.start.row {
9190 break;
9191 }
9192 }
9193 }
9194 }
9195 }
9196
9197 self.fold_ranges(fold_ranges, true, cx);
9198 }
9199
9200 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9201 let buffer_row = fold_at.buffer_row;
9202 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9203
9204 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9205 let autoscroll = self
9206 .selections
9207 .all::<Point>(cx)
9208 .iter()
9209 .any(|selection| fold_range.overlaps(&selection.range()));
9210
9211 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9212 }
9213 }
9214
9215 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9216 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9217 let buffer = &display_map.buffer_snapshot;
9218 let selections = self.selections.all::<Point>(cx);
9219 let ranges = selections
9220 .iter()
9221 .map(|s| {
9222 let range = s.display_range(&display_map).sorted();
9223 let mut start = range.start.to_point(&display_map);
9224 let mut end = range.end.to_point(&display_map);
9225 start.column = 0;
9226 end.column = buffer.line_len(MultiBufferRow(end.row));
9227 start..end
9228 })
9229 .collect::<Vec<_>>();
9230
9231 self.unfold_ranges(ranges, true, true, cx);
9232 }
9233
9234 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9235 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9236
9237 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9238 ..Point::new(
9239 unfold_at.buffer_row.0,
9240 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9241 );
9242
9243 let autoscroll = self
9244 .selections
9245 .all::<Point>(cx)
9246 .iter()
9247 .any(|selection| selection.range().overlaps(&intersection_range));
9248
9249 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9250 }
9251
9252 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9253 let selections = self.selections.all::<Point>(cx);
9254 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9255 let line_mode = self.selections.line_mode;
9256 let ranges = selections.into_iter().map(|s| {
9257 if line_mode {
9258 let start = Point::new(s.start.row, 0);
9259 let end = Point::new(
9260 s.end.row,
9261 display_map
9262 .buffer_snapshot
9263 .line_len(MultiBufferRow(s.end.row)),
9264 );
9265 start..end
9266 } else {
9267 s.start..s.end
9268 }
9269 });
9270 self.fold_ranges(ranges, true, cx);
9271 }
9272
9273 pub fn fold_ranges<T: ToOffset + Clone>(
9274 &mut self,
9275 ranges: impl IntoIterator<Item = Range<T>>,
9276 auto_scroll: bool,
9277 cx: &mut ViewContext<Self>,
9278 ) {
9279 let mut fold_ranges = Vec::new();
9280 let mut buffers_affected = HashMap::default();
9281 let multi_buffer = self.buffer().read(cx);
9282 for range in ranges {
9283 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9284 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9285 };
9286 fold_ranges.push(range);
9287 }
9288
9289 let mut ranges = fold_ranges.into_iter().peekable();
9290 if ranges.peek().is_some() {
9291 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9292
9293 if auto_scroll {
9294 self.request_autoscroll(Autoscroll::fit(), cx);
9295 }
9296
9297 for buffer in buffers_affected.into_values() {
9298 self.sync_expanded_diff_hunks(buffer, cx);
9299 }
9300
9301 cx.notify();
9302
9303 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9304 // Clear diagnostics block when folding a range that contains it.
9305 let snapshot = self.snapshot(cx);
9306 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9307 drop(snapshot);
9308 self.active_diagnostics = Some(active_diagnostics);
9309 self.dismiss_diagnostics(cx);
9310 } else {
9311 self.active_diagnostics = Some(active_diagnostics);
9312 }
9313 }
9314
9315 self.scrollbar_marker_state.dirty = true;
9316 }
9317 }
9318
9319 pub fn unfold_ranges<T: ToOffset + Clone>(
9320 &mut self,
9321 ranges: impl IntoIterator<Item = Range<T>>,
9322 inclusive: bool,
9323 auto_scroll: bool,
9324 cx: &mut ViewContext<Self>,
9325 ) {
9326 let mut unfold_ranges = Vec::new();
9327 let mut buffers_affected = HashMap::default();
9328 let multi_buffer = self.buffer().read(cx);
9329 for range in ranges {
9330 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9331 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9332 };
9333 unfold_ranges.push(range);
9334 }
9335
9336 let mut ranges = unfold_ranges.into_iter().peekable();
9337 if ranges.peek().is_some() {
9338 self.display_map
9339 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9340 if auto_scroll {
9341 self.request_autoscroll(Autoscroll::fit(), cx);
9342 }
9343
9344 for buffer in buffers_affected.into_values() {
9345 self.sync_expanded_diff_hunks(buffer, cx);
9346 }
9347
9348 cx.notify();
9349 self.scrollbar_marker_state.dirty = true;
9350 }
9351 }
9352
9353 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9354 if hovered != self.gutter_hovered {
9355 self.gutter_hovered = hovered;
9356 cx.notify();
9357 }
9358 }
9359
9360 pub fn insert_blocks(
9361 &mut self,
9362 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9363 autoscroll: Option<Autoscroll>,
9364 cx: &mut ViewContext<Self>,
9365 ) -> Vec<BlockId> {
9366 let blocks = self
9367 .display_map
9368 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9369 if let Some(autoscroll) = autoscroll {
9370 self.request_autoscroll(autoscroll, cx);
9371 }
9372 blocks
9373 }
9374
9375 pub fn replace_blocks(
9376 &mut self,
9377 blocks: HashMap<BlockId, RenderBlock>,
9378 autoscroll: Option<Autoscroll>,
9379 cx: &mut ViewContext<Self>,
9380 ) {
9381 self.display_map
9382 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9383 if let Some(autoscroll) = autoscroll {
9384 self.request_autoscroll(autoscroll, cx);
9385 }
9386 }
9387
9388 pub fn remove_blocks(
9389 &mut self,
9390 block_ids: HashSet<BlockId>,
9391 autoscroll: Option<Autoscroll>,
9392 cx: &mut ViewContext<Self>,
9393 ) {
9394 self.display_map.update(cx, |display_map, cx| {
9395 display_map.remove_blocks(block_ids, cx)
9396 });
9397 if let Some(autoscroll) = autoscroll {
9398 self.request_autoscroll(autoscroll, cx);
9399 }
9400 }
9401
9402 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9403 self.display_map
9404 .update(cx, |map, cx| map.snapshot(cx))
9405 .longest_row()
9406 }
9407
9408 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9409 self.display_map
9410 .update(cx, |map, cx| map.snapshot(cx))
9411 .max_point()
9412 }
9413
9414 pub fn text(&self, cx: &AppContext) -> String {
9415 self.buffer.read(cx).read(cx).text()
9416 }
9417
9418 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9419 let text = self.text(cx);
9420 let text = text.trim();
9421
9422 if text.is_empty() {
9423 return None;
9424 }
9425
9426 Some(text.to_string())
9427 }
9428
9429 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9430 self.transact(cx, |this, cx| {
9431 this.buffer
9432 .read(cx)
9433 .as_singleton()
9434 .expect("you can only call set_text on editors for singleton buffers")
9435 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9436 });
9437 }
9438
9439 pub fn display_text(&self, cx: &mut AppContext) -> String {
9440 self.display_map
9441 .update(cx, |map, cx| map.snapshot(cx))
9442 .text()
9443 }
9444
9445 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9446 let mut wrap_guides = smallvec::smallvec![];
9447
9448 if self.show_wrap_guides == Some(false) {
9449 return wrap_guides;
9450 }
9451
9452 let settings = self.buffer.read(cx).settings_at(0, cx);
9453 if settings.show_wrap_guides {
9454 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9455 wrap_guides.push((soft_wrap as usize, true));
9456 }
9457 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9458 }
9459
9460 wrap_guides
9461 }
9462
9463 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9464 let settings = self.buffer.read(cx).settings_at(0, cx);
9465 let mode = self
9466 .soft_wrap_mode_override
9467 .unwrap_or_else(|| settings.soft_wrap);
9468 match mode {
9469 language_settings::SoftWrap::None => SoftWrap::None,
9470 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9471 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9472 language_settings::SoftWrap::PreferredLineLength => {
9473 SoftWrap::Column(settings.preferred_line_length)
9474 }
9475 }
9476 }
9477
9478 pub fn set_soft_wrap_mode(
9479 &mut self,
9480 mode: language_settings::SoftWrap,
9481 cx: &mut ViewContext<Self>,
9482 ) {
9483 self.soft_wrap_mode_override = Some(mode);
9484 cx.notify();
9485 }
9486
9487 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9488 let rem_size = cx.rem_size();
9489 self.display_map.update(cx, |map, cx| {
9490 map.set_font(
9491 style.text.font(),
9492 style.text.font_size.to_pixels(rem_size),
9493 cx,
9494 )
9495 });
9496 self.style = Some(style);
9497 }
9498
9499 pub fn style(&self) -> Option<&EditorStyle> {
9500 self.style.as_ref()
9501 }
9502
9503 // Called by the element. This method is not designed to be called outside of the editor
9504 // element's layout code because it does not notify when rewrapping is computed synchronously.
9505 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9506 self.display_map
9507 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9508 }
9509
9510 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9511 if self.soft_wrap_mode_override.is_some() {
9512 self.soft_wrap_mode_override.take();
9513 } else {
9514 let soft_wrap = match self.soft_wrap_mode(cx) {
9515 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9516 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9517 language_settings::SoftWrap::PreferLine
9518 }
9519 };
9520 self.soft_wrap_mode_override = Some(soft_wrap);
9521 }
9522 cx.notify();
9523 }
9524
9525 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9526 let mut editor_settings = EditorSettings::get_global(cx).clone();
9527 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9528 EditorSettings::override_global(editor_settings, cx);
9529 }
9530
9531 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9532 self.show_gutter = show_gutter;
9533 cx.notify();
9534 }
9535
9536 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9537 self.show_wrap_guides = Some(show_gutter);
9538 cx.notify();
9539 }
9540
9541 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9542 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9543 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9544 cx.reveal_path(&file.abs_path(cx));
9545 }
9546 }
9547 }
9548
9549 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9550 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9551 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9552 if let Some(path) = file.abs_path(cx).to_str() {
9553 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9554 }
9555 }
9556 }
9557 }
9558
9559 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9560 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9561 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9562 if let Some(path) = file.path().to_str() {
9563 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9564 }
9565 }
9566 }
9567 }
9568
9569 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9570 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9571
9572 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9573 self.start_git_blame(true, cx);
9574 }
9575
9576 cx.notify();
9577 }
9578
9579 pub fn toggle_git_blame_inline(
9580 &mut self,
9581 _: &ToggleGitBlameInline,
9582 cx: &mut ViewContext<Self>,
9583 ) {
9584 self.toggle_git_blame_inline_internal(true, cx);
9585 cx.notify();
9586 }
9587
9588 pub fn git_blame_inline_enabled(&self) -> bool {
9589 self.git_blame_inline_enabled
9590 }
9591
9592 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9593 if let Some(project) = self.project.as_ref() {
9594 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9595 return;
9596 };
9597
9598 if buffer.read(cx).file().is_none() {
9599 return;
9600 }
9601
9602 let focused = self.focus_handle(cx).contains_focused(cx);
9603
9604 let project = project.clone();
9605 let blame =
9606 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9607 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9608 self.blame = Some(blame);
9609 }
9610 }
9611
9612 fn toggle_git_blame_inline_internal(
9613 &mut self,
9614 user_triggered: bool,
9615 cx: &mut ViewContext<Self>,
9616 ) {
9617 if self.git_blame_inline_enabled {
9618 self.git_blame_inline_enabled = false;
9619 self.show_git_blame_inline = false;
9620 self.show_git_blame_inline_delay_task.take();
9621 } else {
9622 self.git_blame_inline_enabled = true;
9623 self.start_git_blame_inline(user_triggered, cx);
9624 }
9625
9626 cx.notify();
9627 }
9628
9629 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9630 self.start_git_blame(user_triggered, cx);
9631
9632 if ProjectSettings::get_global(cx)
9633 .git
9634 .inline_blame_delay()
9635 .is_some()
9636 {
9637 self.start_inline_blame_timer(cx);
9638 } else {
9639 self.show_git_blame_inline = true
9640 }
9641 }
9642
9643 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9644 self.blame.as_ref()
9645 }
9646
9647 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9648 self.show_git_blame_gutter && self.has_blame_entries(cx)
9649 }
9650
9651 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9652 self.show_git_blame_inline
9653 && self.focus_handle.is_focused(cx)
9654 && !self.newest_selection_head_on_empty_line(cx)
9655 && self.has_blame_entries(cx)
9656 }
9657
9658 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9659 self.blame()
9660 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9661 }
9662
9663 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9664 let cursor_anchor = self.selections.newest_anchor().head();
9665
9666 let snapshot = self.buffer.read(cx).snapshot(cx);
9667 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9668
9669 snapshot.line_len(buffer_row) == 0
9670 }
9671
9672 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9673 let (path, repo) = maybe!({
9674 let project_handle = self.project.as_ref()?.clone();
9675 let project = project_handle.read(cx);
9676 let buffer = self.buffer().read(cx).as_singleton()?;
9677 let path = buffer
9678 .read(cx)
9679 .file()?
9680 .as_local()?
9681 .path()
9682 .to_str()?
9683 .to_string();
9684 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9685 Some((path, repo))
9686 })
9687 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9688
9689 const REMOTE_NAME: &str = "origin";
9690 let origin_url = repo
9691 .lock()
9692 .remote_url(REMOTE_NAME)
9693 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9694 let sha = repo
9695 .lock()
9696 .head_sha()
9697 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9698 let selections = self.selections.all::<Point>(cx);
9699 let selection = selections.iter().peekable().next();
9700
9701 let (provider, remote) =
9702 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9703 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9704
9705 Ok(provider.build_permalink(
9706 remote,
9707 BuildPermalinkParams {
9708 sha: &sha,
9709 path: &path,
9710 selection: selection.map(|selection| {
9711 let range = selection.range();
9712 let start = range.start.row;
9713 let end = range.end.row;
9714 start..end
9715 }),
9716 },
9717 ))
9718 }
9719
9720 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9721 let permalink = self.get_permalink_to_line(cx);
9722
9723 match permalink {
9724 Ok(permalink) => {
9725 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9726 }
9727 Err(err) => {
9728 let message = format!("Failed to copy permalink: {err}");
9729
9730 Err::<(), anyhow::Error>(err).log_err();
9731
9732 if let Some(workspace) = self.workspace() {
9733 workspace.update(cx, |workspace, cx| {
9734 struct CopyPermalinkToLine;
9735
9736 workspace.show_toast(
9737 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9738 cx,
9739 )
9740 })
9741 }
9742 }
9743 }
9744 }
9745
9746 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9747 let permalink = self.get_permalink_to_line(cx);
9748
9749 match permalink {
9750 Ok(permalink) => {
9751 cx.open_url(permalink.as_ref());
9752 }
9753 Err(err) => {
9754 let message = format!("Failed to open permalink: {err}");
9755
9756 Err::<(), anyhow::Error>(err).log_err();
9757
9758 if let Some(workspace) = self.workspace() {
9759 workspace.update(cx, |workspace, cx| {
9760 struct OpenPermalinkToLine;
9761
9762 workspace.show_toast(
9763 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9764 cx,
9765 )
9766 })
9767 }
9768 }
9769 }
9770 }
9771
9772 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9773 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9774 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9775 pub fn highlight_rows<T: 'static>(
9776 &mut self,
9777 rows: RangeInclusive<Anchor>,
9778 color: Option<Hsla>,
9779 cx: &mut ViewContext<Self>,
9780 ) {
9781 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9782 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9783 hash_map::Entry::Occupied(o) => {
9784 let row_highlights = o.into_mut();
9785 let existing_highlight_index =
9786 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9787 highlight_range
9788 .start()
9789 .cmp(&rows.start(), &multi_buffer_snapshot)
9790 .then(
9791 highlight_range
9792 .end()
9793 .cmp(&rows.end(), &multi_buffer_snapshot),
9794 )
9795 });
9796 match color {
9797 Some(color) => {
9798 let insert_index = match existing_highlight_index {
9799 Ok(i) => i,
9800 Err(i) => i,
9801 };
9802 row_highlights.insert(
9803 insert_index,
9804 (post_inc(&mut self.highlight_order), rows, Some(color)),
9805 );
9806 }
9807 None => match existing_highlight_index {
9808 Ok(i) => {
9809 row_highlights.remove(i);
9810 }
9811 Err(i) => {
9812 row_highlights
9813 .insert(i, (post_inc(&mut self.highlight_order), rows, None));
9814 }
9815 },
9816 }
9817 }
9818 hash_map::Entry::Vacant(v) => {
9819 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9820 }
9821 }
9822 }
9823
9824 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9825 pub fn clear_row_highlights<T: 'static>(&mut self) {
9826 self.highlighted_rows.remove(&TypeId::of::<T>());
9827 }
9828
9829 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9830 pub fn highlighted_rows<T: 'static>(
9831 &self,
9832 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9833 Some(
9834 self.highlighted_rows
9835 .get(&TypeId::of::<T>())?
9836 .iter()
9837 .map(|(_, range, color)| (range, color.as_ref())),
9838 )
9839 }
9840
9841 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9842 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9843 /// Allows to ignore certain kinds of highlights.
9844 pub fn highlighted_display_rows(
9845 &mut self,
9846 exclude_highlights: HashSet<TypeId>,
9847 cx: &mut WindowContext,
9848 ) -> BTreeMap<DisplayRow, Hsla> {
9849 let snapshot = self.snapshot(cx);
9850 let mut used_highlight_orders = HashMap::default();
9851 self.highlighted_rows
9852 .iter()
9853 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9854 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9855 .fold(
9856 BTreeMap::<DisplayRow, Hsla>::new(),
9857 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9858 let start_row = anchor_range.start().to_display_point(&snapshot).row();
9859 let end_row = anchor_range.end().to_display_point(&snapshot).row();
9860 for row in start_row.0..=end_row.0 {
9861 let used_index =
9862 used_highlight_orders.entry(row).or_insert(*highlight_order);
9863 if highlight_order >= used_index {
9864 *used_index = *highlight_order;
9865 match hsla {
9866 Some(hsla) => {
9867 unique_rows.insert(DisplayRow(row), *hsla);
9868 }
9869 None => {
9870 unique_rows.remove(&DisplayRow(row));
9871 }
9872 }
9873 }
9874 }
9875 unique_rows
9876 },
9877 )
9878 }
9879
9880 pub fn set_search_within_ranges(
9881 &mut self,
9882 ranges: &[Range<Anchor>],
9883 cx: &mut ViewContext<Self>,
9884 ) {
9885 self.highlight_background::<SearchWithinRange>(
9886 ranges,
9887 |colors| colors.editor_document_highlight_read_background,
9888 cx,
9889 )
9890 }
9891
9892 pub fn highlight_background<T: 'static>(
9893 &mut self,
9894 ranges: &[Range<Anchor>],
9895 color_fetcher: fn(&ThemeColors) -> Hsla,
9896 cx: &mut ViewContext<Self>,
9897 ) {
9898 let snapshot = self.snapshot(cx);
9899 // this is to try and catch a panic sooner
9900 for range in ranges {
9901 snapshot
9902 .buffer_snapshot
9903 .summary_for_anchor::<usize>(&range.start);
9904 snapshot
9905 .buffer_snapshot
9906 .summary_for_anchor::<usize>(&range.end);
9907 }
9908
9909 self.background_highlights
9910 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9911 self.scrollbar_marker_state.dirty = true;
9912 cx.notify();
9913 }
9914
9915 pub fn clear_background_highlights<T: 'static>(
9916 &mut self,
9917 cx: &mut ViewContext<Self>,
9918 ) -> Option<BackgroundHighlight> {
9919 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9920 if !text_highlights.1.is_empty() {
9921 self.scrollbar_marker_state.dirty = true;
9922 cx.notify();
9923 }
9924 Some(text_highlights)
9925 }
9926
9927 #[cfg(feature = "test-support")]
9928 pub fn all_text_background_highlights(
9929 &mut self,
9930 cx: &mut ViewContext<Self>,
9931 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9932 let snapshot = self.snapshot(cx);
9933 let buffer = &snapshot.buffer_snapshot;
9934 let start = buffer.anchor_before(0);
9935 let end = buffer.anchor_after(buffer.len());
9936 let theme = cx.theme().colors();
9937 self.background_highlights_in_range(start..end, &snapshot, theme)
9938 }
9939
9940 fn document_highlights_for_position<'a>(
9941 &'a self,
9942 position: Anchor,
9943 buffer: &'a MultiBufferSnapshot,
9944 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9945 let read_highlights = self
9946 .background_highlights
9947 .get(&TypeId::of::<DocumentHighlightRead>())
9948 .map(|h| &h.1);
9949 let write_highlights = self
9950 .background_highlights
9951 .get(&TypeId::of::<DocumentHighlightWrite>())
9952 .map(|h| &h.1);
9953 let left_position = position.bias_left(buffer);
9954 let right_position = position.bias_right(buffer);
9955 read_highlights
9956 .into_iter()
9957 .chain(write_highlights)
9958 .flat_map(move |ranges| {
9959 let start_ix = match ranges.binary_search_by(|probe| {
9960 let cmp = probe.end.cmp(&left_position, buffer);
9961 if cmp.is_ge() {
9962 Ordering::Greater
9963 } else {
9964 Ordering::Less
9965 }
9966 }) {
9967 Ok(i) | Err(i) => i,
9968 };
9969
9970 ranges[start_ix..]
9971 .iter()
9972 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9973 })
9974 }
9975
9976 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9977 self.background_highlights
9978 .get(&TypeId::of::<T>())
9979 .map_or(false, |(_, highlights)| !highlights.is_empty())
9980 }
9981
9982 pub fn background_highlights_in_range(
9983 &self,
9984 search_range: Range<Anchor>,
9985 display_snapshot: &DisplaySnapshot,
9986 theme: &ThemeColors,
9987 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9988 let mut results = Vec::new();
9989 for (color_fetcher, ranges) in self.background_highlights.values() {
9990 let color = color_fetcher(theme);
9991 let start_ix = match ranges.binary_search_by(|probe| {
9992 let cmp = probe
9993 .end
9994 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9995 if cmp.is_gt() {
9996 Ordering::Greater
9997 } else {
9998 Ordering::Less
9999 }
10000 }) {
10001 Ok(i) | Err(i) => i,
10002 };
10003 for range in &ranges[start_ix..] {
10004 if range
10005 .start
10006 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10007 .is_ge()
10008 {
10009 break;
10010 }
10011
10012 let start = range.start.to_display_point(&display_snapshot);
10013 let end = range.end.to_display_point(&display_snapshot);
10014 results.push((start..end, color))
10015 }
10016 }
10017 results
10018 }
10019
10020 pub fn background_highlight_row_ranges<T: 'static>(
10021 &self,
10022 search_range: Range<Anchor>,
10023 display_snapshot: &DisplaySnapshot,
10024 count: usize,
10025 ) -> Vec<RangeInclusive<DisplayPoint>> {
10026 let mut results = Vec::new();
10027 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10028 return vec![];
10029 };
10030
10031 let start_ix = match ranges.binary_search_by(|probe| {
10032 let cmp = probe
10033 .end
10034 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10035 if cmp.is_gt() {
10036 Ordering::Greater
10037 } else {
10038 Ordering::Less
10039 }
10040 }) {
10041 Ok(i) | Err(i) => i,
10042 };
10043 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10044 if let (Some(start_display), Some(end_display)) = (start, end) {
10045 results.push(
10046 start_display.to_display_point(display_snapshot)
10047 ..=end_display.to_display_point(display_snapshot),
10048 );
10049 }
10050 };
10051 let mut start_row: Option<Point> = None;
10052 let mut end_row: Option<Point> = None;
10053 if ranges.len() > count {
10054 return Vec::new();
10055 }
10056 for range in &ranges[start_ix..] {
10057 if range
10058 .start
10059 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10060 .is_ge()
10061 {
10062 break;
10063 }
10064 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10065 if let Some(current_row) = &end_row {
10066 if end.row == current_row.row {
10067 continue;
10068 }
10069 }
10070 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10071 if start_row.is_none() {
10072 assert_eq!(end_row, None);
10073 start_row = Some(start);
10074 end_row = Some(end);
10075 continue;
10076 }
10077 if let Some(current_end) = end_row.as_mut() {
10078 if start.row > current_end.row + 1 {
10079 push_region(start_row, end_row);
10080 start_row = Some(start);
10081 end_row = Some(end);
10082 } else {
10083 // Merge two hunks.
10084 *current_end = end;
10085 }
10086 } else {
10087 unreachable!();
10088 }
10089 }
10090 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10091 push_region(start_row, end_row);
10092 results
10093 }
10094
10095 /// Get the text ranges corresponding to the redaction query
10096 pub fn redacted_ranges(
10097 &self,
10098 search_range: Range<Anchor>,
10099 display_snapshot: &DisplaySnapshot,
10100 cx: &WindowContext,
10101 ) -> Vec<Range<DisplayPoint>> {
10102 display_snapshot
10103 .buffer_snapshot
10104 .redacted_ranges(search_range, |file| {
10105 if let Some(file) = file {
10106 file.is_private()
10107 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10108 } else {
10109 false
10110 }
10111 })
10112 .map(|range| {
10113 range.start.to_display_point(display_snapshot)
10114 ..range.end.to_display_point(display_snapshot)
10115 })
10116 .collect()
10117 }
10118
10119 pub fn highlight_text<T: 'static>(
10120 &mut self,
10121 ranges: Vec<Range<Anchor>>,
10122 style: HighlightStyle,
10123 cx: &mut ViewContext<Self>,
10124 ) {
10125 self.display_map.update(cx, |map, _| {
10126 map.highlight_text(TypeId::of::<T>(), ranges, style)
10127 });
10128 cx.notify();
10129 }
10130
10131 pub(crate) fn highlight_inlays<T: 'static>(
10132 &mut self,
10133 highlights: Vec<InlayHighlight>,
10134 style: HighlightStyle,
10135 cx: &mut ViewContext<Self>,
10136 ) {
10137 self.display_map.update(cx, |map, _| {
10138 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10139 });
10140 cx.notify();
10141 }
10142
10143 pub fn text_highlights<'a, T: 'static>(
10144 &'a self,
10145 cx: &'a AppContext,
10146 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10147 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10148 }
10149
10150 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10151 let cleared = self
10152 .display_map
10153 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10154 if cleared {
10155 cx.notify();
10156 }
10157 }
10158
10159 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10160 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10161 && self.focus_handle.is_focused(cx)
10162 }
10163
10164 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10165 cx.notify();
10166 }
10167
10168 fn on_buffer_event(
10169 &mut self,
10170 multibuffer: Model<MultiBuffer>,
10171 event: &multi_buffer::Event,
10172 cx: &mut ViewContext<Self>,
10173 ) {
10174 match event {
10175 multi_buffer::Event::Edited {
10176 singleton_buffer_edited,
10177 } => {
10178 self.scrollbar_marker_state.dirty = true;
10179 self.refresh_active_diagnostics(cx);
10180 self.refresh_code_actions(cx);
10181 if self.has_active_inline_completion(cx) {
10182 self.update_visible_inline_completion(cx);
10183 }
10184 cx.emit(EditorEvent::BufferEdited);
10185 cx.emit(SearchEvent::MatchesInvalidated);
10186
10187 if *singleton_buffer_edited {
10188 if let Some(project) = &self.project {
10189 let project = project.read(cx);
10190 let languages_affected = multibuffer
10191 .read(cx)
10192 .all_buffers()
10193 .into_iter()
10194 .filter_map(|buffer| {
10195 let buffer = buffer.read(cx);
10196 let language = buffer.language()?;
10197 if project.is_local()
10198 && project.language_servers_for_buffer(buffer, cx).count() == 0
10199 {
10200 None
10201 } else {
10202 Some(language)
10203 }
10204 })
10205 .cloned()
10206 .collect::<HashSet<_>>();
10207 if !languages_affected.is_empty() {
10208 self.refresh_inlay_hints(
10209 InlayHintRefreshReason::BufferEdited(languages_affected),
10210 cx,
10211 );
10212 }
10213 }
10214 }
10215
10216 let Some(project) = &self.project else { return };
10217 let telemetry = project.read(cx).client().telemetry().clone();
10218 telemetry.log_edit_event("editor");
10219 }
10220 multi_buffer::Event::ExcerptsAdded {
10221 buffer,
10222 predecessor,
10223 excerpts,
10224 } => {
10225 self.tasks_update_task = Some(self.refresh_runnables(cx));
10226 cx.emit(EditorEvent::ExcerptsAdded {
10227 buffer: buffer.clone(),
10228 predecessor: *predecessor,
10229 excerpts: excerpts.clone(),
10230 });
10231 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10232 }
10233 multi_buffer::Event::ExcerptsRemoved { ids } => {
10234 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10235 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10236 }
10237 multi_buffer::Event::Reparsed => {
10238 self.tasks_update_task = Some(self.refresh_runnables(cx));
10239
10240 cx.emit(EditorEvent::Reparsed);
10241 }
10242 multi_buffer::Event::LanguageChanged => {
10243 cx.emit(EditorEvent::Reparsed);
10244 cx.notify();
10245 }
10246 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10247 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10248 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10249 cx.emit(EditorEvent::TitleChanged)
10250 }
10251 multi_buffer::Event::DiffBaseChanged => {
10252 self.scrollbar_marker_state.dirty = true;
10253 cx.emit(EditorEvent::DiffBaseChanged);
10254 cx.notify();
10255 }
10256 multi_buffer::Event::DiffUpdated { buffer } => {
10257 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10258 cx.notify();
10259 }
10260 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10261 multi_buffer::Event::DiagnosticsUpdated => {
10262 self.refresh_active_diagnostics(cx);
10263 self.scrollbar_marker_state.dirty = true;
10264 cx.notify();
10265 }
10266 _ => {}
10267 };
10268 }
10269
10270 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10271 cx.notify();
10272 }
10273
10274 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10275 self.refresh_inline_completion(true, cx);
10276 self.refresh_inlay_hints(
10277 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10278 self.selections.newest_anchor().head(),
10279 &self.buffer.read(cx).snapshot(cx),
10280 cx,
10281 )),
10282 cx,
10283 );
10284 let editor_settings = EditorSettings::get_global(cx);
10285 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10286 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10287
10288 if self.mode == EditorMode::Full {
10289 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10290 if self.git_blame_inline_enabled != inline_blame_enabled {
10291 self.toggle_git_blame_inline_internal(false, cx);
10292 }
10293 }
10294
10295 cx.notify();
10296 }
10297
10298 pub fn set_searchable(&mut self, searchable: bool) {
10299 self.searchable = searchable;
10300 }
10301
10302 pub fn searchable(&self) -> bool {
10303 self.searchable
10304 }
10305
10306 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10307 self.open_excerpts_common(true, cx)
10308 }
10309
10310 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10311 self.open_excerpts_common(false, cx)
10312 }
10313
10314 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10315 let buffer = self.buffer.read(cx);
10316 if buffer.is_singleton() {
10317 cx.propagate();
10318 return;
10319 }
10320
10321 let Some(workspace) = self.workspace() else {
10322 cx.propagate();
10323 return;
10324 };
10325
10326 let mut new_selections_by_buffer = HashMap::default();
10327 for selection in self.selections.all::<usize>(cx) {
10328 for (buffer, mut range, _) in
10329 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10330 {
10331 if selection.reversed {
10332 mem::swap(&mut range.start, &mut range.end);
10333 }
10334 new_selections_by_buffer
10335 .entry(buffer)
10336 .or_insert(Vec::new())
10337 .push(range)
10338 }
10339 }
10340
10341 // We defer the pane interaction because we ourselves are a workspace item
10342 // and activating a new item causes the pane to call a method on us reentrantly,
10343 // which panics if we're on the stack.
10344 cx.window_context().defer(move |cx| {
10345 workspace.update(cx, |workspace, cx| {
10346 let pane = if split {
10347 workspace.adjacent_pane(cx)
10348 } else {
10349 workspace.active_pane().clone()
10350 };
10351
10352 for (buffer, ranges) in new_selections_by_buffer {
10353 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10354 editor.update(cx, |editor, cx| {
10355 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10356 s.select_ranges(ranges);
10357 });
10358 });
10359 }
10360 })
10361 });
10362 }
10363
10364 fn jump(
10365 &mut self,
10366 path: ProjectPath,
10367 position: Point,
10368 anchor: language::Anchor,
10369 offset_from_top: u32,
10370 cx: &mut ViewContext<Self>,
10371 ) {
10372 let workspace = self.workspace();
10373 cx.spawn(|_, mut cx| async move {
10374 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10375 let editor = workspace.update(&mut cx, |workspace, cx| {
10376 // Reset the preview item id before opening the new item
10377 workspace.active_pane().update(cx, |pane, cx| {
10378 pane.set_preview_item_id(None, cx);
10379 });
10380 workspace.open_path_preview(path, None, true, true, cx)
10381 })?;
10382 let editor = editor
10383 .await?
10384 .downcast::<Editor>()
10385 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10386 .downgrade();
10387 editor.update(&mut cx, |editor, cx| {
10388 let buffer = editor
10389 .buffer()
10390 .read(cx)
10391 .as_singleton()
10392 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10393 let buffer = buffer.read(cx);
10394 let cursor = if buffer.can_resolve(&anchor) {
10395 language::ToPoint::to_point(&anchor, buffer)
10396 } else {
10397 buffer.clip_point(position, Bias::Left)
10398 };
10399
10400 let nav_history = editor.nav_history.take();
10401 editor.change_selections(
10402 Some(Autoscroll::top_relative(offset_from_top as usize)),
10403 cx,
10404 |s| {
10405 s.select_ranges([cursor..cursor]);
10406 },
10407 );
10408 editor.nav_history = nav_history;
10409
10410 anyhow::Ok(())
10411 })??;
10412
10413 anyhow::Ok(())
10414 })
10415 .detach_and_log_err(cx);
10416 }
10417
10418 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10419 let snapshot = self.buffer.read(cx).read(cx);
10420 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10421 Some(
10422 ranges
10423 .iter()
10424 .map(move |range| {
10425 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10426 })
10427 .collect(),
10428 )
10429 }
10430
10431 fn selection_replacement_ranges(
10432 &self,
10433 range: Range<OffsetUtf16>,
10434 cx: &AppContext,
10435 ) -> Vec<Range<OffsetUtf16>> {
10436 let selections = self.selections.all::<OffsetUtf16>(cx);
10437 let newest_selection = selections
10438 .iter()
10439 .max_by_key(|selection| selection.id)
10440 .unwrap();
10441 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10442 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10443 let snapshot = self.buffer.read(cx).read(cx);
10444 selections
10445 .into_iter()
10446 .map(|mut selection| {
10447 selection.start.0 =
10448 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10449 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10450 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10451 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10452 })
10453 .collect()
10454 }
10455
10456 fn report_editor_event(
10457 &self,
10458 operation: &'static str,
10459 file_extension: Option<String>,
10460 cx: &AppContext,
10461 ) {
10462 if cfg!(any(test, feature = "test-support")) {
10463 return;
10464 }
10465
10466 let Some(project) = &self.project else { return };
10467
10468 // If None, we are in a file without an extension
10469 let file = self
10470 .buffer
10471 .read(cx)
10472 .as_singleton()
10473 .and_then(|b| b.read(cx).file());
10474 let file_extension = file_extension.or(file
10475 .as_ref()
10476 .and_then(|file| Path::new(file.file_name(cx)).extension())
10477 .and_then(|e| e.to_str())
10478 .map(|a| a.to_string()));
10479
10480 let vim_mode = cx
10481 .global::<SettingsStore>()
10482 .raw_user_settings()
10483 .get("vim_mode")
10484 == Some(&serde_json::Value::Bool(true));
10485
10486 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10487 == language::language_settings::InlineCompletionProvider::Copilot;
10488 let copilot_enabled_for_language = self
10489 .buffer
10490 .read(cx)
10491 .settings_at(0, cx)
10492 .show_inline_completions;
10493
10494 let telemetry = project.read(cx).client().telemetry().clone();
10495 telemetry.report_editor_event(
10496 file_extension,
10497 vim_mode,
10498 operation,
10499 copilot_enabled,
10500 copilot_enabled_for_language,
10501 )
10502 }
10503
10504 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10505 /// with each line being an array of {text, highlight} objects.
10506 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10507 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10508 return;
10509 };
10510
10511 #[derive(Serialize)]
10512 struct Chunk<'a> {
10513 text: String,
10514 highlight: Option<&'a str>,
10515 }
10516
10517 let snapshot = buffer.read(cx).snapshot();
10518 let range = self
10519 .selected_text_range(cx)
10520 .and_then(|selected_range| {
10521 if selected_range.is_empty() {
10522 None
10523 } else {
10524 Some(selected_range)
10525 }
10526 })
10527 .unwrap_or_else(|| 0..snapshot.len());
10528
10529 let chunks = snapshot.chunks(range, true);
10530 let mut lines = Vec::new();
10531 let mut line: VecDeque<Chunk> = VecDeque::new();
10532
10533 let Some(style) = self.style.as_ref() else {
10534 return;
10535 };
10536
10537 for chunk in chunks {
10538 let highlight = chunk
10539 .syntax_highlight_id
10540 .and_then(|id| id.name(&style.syntax));
10541 let mut chunk_lines = chunk.text.split('\n').peekable();
10542 while let Some(text) = chunk_lines.next() {
10543 let mut merged_with_last_token = false;
10544 if let Some(last_token) = line.back_mut() {
10545 if last_token.highlight == highlight {
10546 last_token.text.push_str(text);
10547 merged_with_last_token = true;
10548 }
10549 }
10550
10551 if !merged_with_last_token {
10552 line.push_back(Chunk {
10553 text: text.into(),
10554 highlight,
10555 });
10556 }
10557
10558 if chunk_lines.peek().is_some() {
10559 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10560 line.pop_front();
10561 }
10562 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10563 line.pop_back();
10564 }
10565
10566 lines.push(mem::take(&mut line));
10567 }
10568 }
10569 }
10570
10571 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10572 return;
10573 };
10574 cx.write_to_clipboard(ClipboardItem::new(lines));
10575 }
10576
10577 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10578 &self.inlay_hint_cache
10579 }
10580
10581 pub fn replay_insert_event(
10582 &mut self,
10583 text: &str,
10584 relative_utf16_range: Option<Range<isize>>,
10585 cx: &mut ViewContext<Self>,
10586 ) {
10587 if !self.input_enabled {
10588 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10589 return;
10590 }
10591 if let Some(relative_utf16_range) = relative_utf16_range {
10592 let selections = self.selections.all::<OffsetUtf16>(cx);
10593 self.change_selections(None, cx, |s| {
10594 let new_ranges = selections.into_iter().map(|range| {
10595 let start = OffsetUtf16(
10596 range
10597 .head()
10598 .0
10599 .saturating_add_signed(relative_utf16_range.start),
10600 );
10601 let end = OffsetUtf16(
10602 range
10603 .head()
10604 .0
10605 .saturating_add_signed(relative_utf16_range.end),
10606 );
10607 start..end
10608 });
10609 s.select_ranges(new_ranges);
10610 });
10611 }
10612
10613 self.handle_input(text, cx);
10614 }
10615
10616 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10617 let Some(project) = self.project.as_ref() else {
10618 return false;
10619 };
10620 let project = project.read(cx);
10621
10622 let mut supports = false;
10623 self.buffer().read(cx).for_each_buffer(|buffer| {
10624 if !supports {
10625 supports = project
10626 .language_servers_for_buffer(buffer.read(cx), cx)
10627 .any(
10628 |(_, server)| match server.capabilities().inlay_hint_provider {
10629 Some(lsp::OneOf::Left(enabled)) => enabled,
10630 Some(lsp::OneOf::Right(_)) => true,
10631 None => false,
10632 },
10633 )
10634 }
10635 });
10636 supports
10637 }
10638
10639 pub fn focus(&self, cx: &mut WindowContext) {
10640 cx.focus(&self.focus_handle)
10641 }
10642
10643 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10644 self.focus_handle.is_focused(cx)
10645 }
10646
10647 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10648 cx.emit(EditorEvent::Focused);
10649
10650 if let Some(rename) = self.pending_rename.as_ref() {
10651 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10652 cx.focus(&rename_editor_focus_handle);
10653 } else {
10654 if let Some(blame) = self.blame.as_ref() {
10655 blame.update(cx, GitBlame::focus)
10656 }
10657
10658 self.blink_manager.update(cx, BlinkManager::enable);
10659 self.show_cursor_names(cx);
10660 self.buffer.update(cx, |buffer, cx| {
10661 buffer.finalize_last_transaction(cx);
10662 if self.leader_peer_id.is_none() {
10663 buffer.set_active_selections(
10664 &self.selections.disjoint_anchors(),
10665 self.selections.line_mode,
10666 self.cursor_shape,
10667 cx,
10668 );
10669 }
10670 });
10671 }
10672 }
10673
10674 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10675 self.blink_manager.update(cx, BlinkManager::disable);
10676 self.buffer
10677 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10678
10679 if let Some(blame) = self.blame.as_ref() {
10680 blame.update(cx, GitBlame::blur)
10681 }
10682 self.hide_context_menu(cx);
10683 hide_hover(self, cx);
10684 cx.emit(EditorEvent::Blurred);
10685 cx.notify();
10686 }
10687
10688 pub fn register_action<A: Action>(
10689 &mut self,
10690 listener: impl Fn(&A, &mut WindowContext) + 'static,
10691 ) -> &mut Self {
10692 let listener = Arc::new(listener);
10693
10694 self.editor_actions.push(Box::new(move |cx| {
10695 let _view = cx.view().clone();
10696 let cx = cx.window_context();
10697 let listener = listener.clone();
10698 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10699 let action = action.downcast_ref().unwrap();
10700 if phase == DispatchPhase::Bubble {
10701 listener(action, cx)
10702 }
10703 })
10704 }));
10705 self
10706 }
10707}
10708
10709fn hunks_for_selections(
10710 multi_buffer_snapshot: &MultiBufferSnapshot,
10711 selections: &[Selection<Anchor>],
10712) -> Vec<DiffHunk<MultiBufferRow>> {
10713 let mut hunks = Vec::with_capacity(selections.len());
10714 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10715 HashMap::default();
10716 let buffer_rows_for_selections = selections.iter().map(|selection| {
10717 let head = selection.head();
10718 let tail = selection.tail();
10719 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
10720 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
10721 if start > end {
10722 end..start
10723 } else {
10724 start..end
10725 }
10726 });
10727
10728 for selected_multi_buffer_rows in buffer_rows_for_selections {
10729 let query_rows =
10730 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
10731 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10732 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10733 // when the caret is just above or just below the deleted hunk.
10734 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
10735 let related_to_selection = if allow_adjacent {
10736 hunk.associated_range.overlaps(&query_rows)
10737 || hunk.associated_range.start == query_rows.end
10738 || hunk.associated_range.end == query_rows.start
10739 } else {
10740 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10741 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10742 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10743 || selected_multi_buffer_rows.end == hunk.associated_range.start
10744 };
10745 if related_to_selection {
10746 if !processed_buffer_rows
10747 .entry(hunk.buffer_id)
10748 .or_default()
10749 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10750 {
10751 continue;
10752 }
10753 hunks.push(hunk);
10754 }
10755 }
10756 }
10757
10758 hunks
10759}
10760
10761pub trait CollaborationHub {
10762 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10763 fn user_participant_indices<'a>(
10764 &self,
10765 cx: &'a AppContext,
10766 ) -> &'a HashMap<u64, ParticipantIndex>;
10767 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10768}
10769
10770impl CollaborationHub for Model<Project> {
10771 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10772 self.read(cx).collaborators()
10773 }
10774
10775 fn user_participant_indices<'a>(
10776 &self,
10777 cx: &'a AppContext,
10778 ) -> &'a HashMap<u64, ParticipantIndex> {
10779 self.read(cx).user_store().read(cx).participant_indices()
10780 }
10781
10782 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10783 let this = self.read(cx);
10784 let user_ids = this.collaborators().values().map(|c| c.user_id);
10785 this.user_store().read_with(cx, |user_store, cx| {
10786 user_store.participant_names(user_ids, cx)
10787 })
10788 }
10789}
10790
10791pub trait CompletionProvider {
10792 fn completions(
10793 &self,
10794 buffer: &Model<Buffer>,
10795 buffer_position: text::Anchor,
10796 cx: &mut ViewContext<Editor>,
10797 ) -> Task<Result<Vec<Completion>>>;
10798
10799 fn resolve_completions(
10800 &self,
10801 buffer: Model<Buffer>,
10802 completion_indices: Vec<usize>,
10803 completions: Arc<RwLock<Box<[Completion]>>>,
10804 cx: &mut ViewContext<Editor>,
10805 ) -> Task<Result<bool>>;
10806
10807 fn apply_additional_edits_for_completion(
10808 &self,
10809 buffer: Model<Buffer>,
10810 completion: Completion,
10811 push_to_history: bool,
10812 cx: &mut ViewContext<Editor>,
10813 ) -> Task<Result<Option<language::Transaction>>>;
10814}
10815
10816impl CompletionProvider for Model<Project> {
10817 fn completions(
10818 &self,
10819 buffer: &Model<Buffer>,
10820 buffer_position: text::Anchor,
10821 cx: &mut ViewContext<Editor>,
10822 ) -> Task<Result<Vec<Completion>>> {
10823 self.update(cx, |project, cx| {
10824 project.completions(&buffer, buffer_position, cx)
10825 })
10826 }
10827
10828 fn resolve_completions(
10829 &self,
10830 buffer: Model<Buffer>,
10831 completion_indices: Vec<usize>,
10832 completions: Arc<RwLock<Box<[Completion]>>>,
10833 cx: &mut ViewContext<Editor>,
10834 ) -> Task<Result<bool>> {
10835 self.update(cx, |project, cx| {
10836 project.resolve_completions(buffer, completion_indices, completions, cx)
10837 })
10838 }
10839
10840 fn apply_additional_edits_for_completion(
10841 &self,
10842 buffer: Model<Buffer>,
10843 completion: Completion,
10844 push_to_history: bool,
10845 cx: &mut ViewContext<Editor>,
10846 ) -> Task<Result<Option<language::Transaction>>> {
10847 self.update(cx, |project, cx| {
10848 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10849 })
10850 }
10851}
10852
10853fn inlay_hint_settings(
10854 location: Anchor,
10855 snapshot: &MultiBufferSnapshot,
10856 cx: &mut ViewContext<'_, Editor>,
10857) -> InlayHintSettings {
10858 let file = snapshot.file_at(location);
10859 let language = snapshot.language_at(location);
10860 let settings = all_language_settings(file, cx);
10861 settings
10862 .language(language.map(|l| l.name()).as_deref())
10863 .inlay_hints
10864}
10865
10866fn consume_contiguous_rows(
10867 contiguous_row_selections: &mut Vec<Selection<Point>>,
10868 selection: &Selection<Point>,
10869 display_map: &DisplaySnapshot,
10870 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10871) -> (MultiBufferRow, MultiBufferRow) {
10872 contiguous_row_selections.push(selection.clone());
10873 let start_row = MultiBufferRow(selection.start.row);
10874 let mut end_row = ending_row(selection, display_map);
10875
10876 while let Some(next_selection) = selections.peek() {
10877 if next_selection.start.row <= end_row.0 {
10878 end_row = ending_row(next_selection, display_map);
10879 contiguous_row_selections.push(selections.next().unwrap().clone());
10880 } else {
10881 break;
10882 }
10883 }
10884 (start_row, end_row)
10885}
10886
10887fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
10888 if next_selection.end.column > 0 || next_selection.is_empty() {
10889 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
10890 } else {
10891 MultiBufferRow(next_selection.end.row)
10892 }
10893}
10894
10895impl EditorSnapshot {
10896 pub fn remote_selections_in_range<'a>(
10897 &'a self,
10898 range: &'a Range<Anchor>,
10899 collaboration_hub: &dyn CollaborationHub,
10900 cx: &'a AppContext,
10901 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10902 let participant_names = collaboration_hub.user_names(cx);
10903 let participant_indices = collaboration_hub.user_participant_indices(cx);
10904 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10905 let collaborators_by_replica_id = collaborators_by_peer_id
10906 .iter()
10907 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10908 .collect::<HashMap<_, _>>();
10909 self.buffer_snapshot
10910 .remote_selections_in_range(range)
10911 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10912 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10913 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10914 let user_name = participant_names.get(&collaborator.user_id).cloned();
10915 Some(RemoteSelection {
10916 replica_id,
10917 selection,
10918 cursor_shape,
10919 line_mode,
10920 participant_index,
10921 peer_id: collaborator.peer_id,
10922 user_name,
10923 })
10924 })
10925 }
10926
10927 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10928 self.display_snapshot.buffer_snapshot.language_at(position)
10929 }
10930
10931 pub fn is_focused(&self) -> bool {
10932 self.is_focused
10933 }
10934
10935 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10936 self.placeholder_text.as_ref()
10937 }
10938
10939 pub fn scroll_position(&self) -> gpui::Point<f32> {
10940 self.scroll_anchor.scroll_position(&self.display_snapshot)
10941 }
10942
10943 pub fn gutter_dimensions(
10944 &self,
10945 font_id: FontId,
10946 font_size: Pixels,
10947 em_width: Pixels,
10948 max_line_number_width: Pixels,
10949 cx: &AppContext,
10950 ) -> GutterDimensions {
10951 if !self.show_gutter {
10952 return GutterDimensions::default();
10953 }
10954 let descent = cx.text_system().descent(font_id, font_size);
10955
10956 let show_git_gutter = matches!(
10957 ProjectSettings::get_global(cx).git.git_gutter,
10958 Some(GitGutterSetting::TrackedFiles)
10959 );
10960 let gutter_settings = EditorSettings::get_global(cx).gutter;
10961 let gutter_lines_enabled = gutter_settings.line_numbers;
10962 let line_gutter_width = if gutter_lines_enabled {
10963 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10964 let min_width_for_number_on_gutter = em_width * 4.0;
10965 max_line_number_width.max(min_width_for_number_on_gutter)
10966 } else {
10967 0.0.into()
10968 };
10969
10970 let git_blame_entries_width = self
10971 .render_git_blame_gutter
10972 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10973
10974 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10975 left_padding += if gutter_settings.code_actions {
10976 em_width * 3.0
10977 } else if show_git_gutter && gutter_lines_enabled {
10978 em_width * 2.0
10979 } else if show_git_gutter || gutter_lines_enabled {
10980 em_width
10981 } else {
10982 px(0.)
10983 };
10984
10985 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10986 em_width * 4.0
10987 } else if gutter_settings.folds {
10988 em_width * 3.0
10989 } else if gutter_lines_enabled {
10990 em_width
10991 } else {
10992 px(0.)
10993 };
10994
10995 GutterDimensions {
10996 left_padding,
10997 right_padding,
10998 width: line_gutter_width + left_padding + right_padding,
10999 margin: -descent,
11000 git_blame_entries_width,
11001 }
11002 }
11003}
11004
11005impl Deref for EditorSnapshot {
11006 type Target = DisplaySnapshot;
11007
11008 fn deref(&self) -> &Self::Target {
11009 &self.display_snapshot
11010 }
11011}
11012
11013#[derive(Clone, Debug, PartialEq, Eq)]
11014pub enum EditorEvent {
11015 InputIgnored {
11016 text: Arc<str>,
11017 },
11018 InputHandled {
11019 utf16_range_to_replace: Option<Range<isize>>,
11020 text: Arc<str>,
11021 },
11022 ExcerptsAdded {
11023 buffer: Model<Buffer>,
11024 predecessor: ExcerptId,
11025 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11026 },
11027 ExcerptsRemoved {
11028 ids: Vec<ExcerptId>,
11029 },
11030 BufferEdited,
11031 Edited,
11032 Reparsed,
11033 Focused,
11034 Blurred,
11035 DirtyChanged,
11036 Saved,
11037 TitleChanged,
11038 DiffBaseChanged,
11039 SelectionsChanged {
11040 local: bool,
11041 },
11042 ScrollPositionChanged {
11043 local: bool,
11044 autoscroll: bool,
11045 },
11046 Closed,
11047 TransactionUndone {
11048 transaction_id: clock::Lamport,
11049 },
11050 TransactionBegun {
11051 transaction_id: clock::Lamport,
11052 },
11053}
11054
11055impl EventEmitter<EditorEvent> for Editor {}
11056
11057impl FocusableView for Editor {
11058 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11059 self.focus_handle.clone()
11060 }
11061}
11062
11063impl Render for Editor {
11064 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11065 let settings = ThemeSettings::get_global(cx);
11066
11067 let text_style = match self.mode {
11068 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11069 color: cx.theme().colors().editor_foreground,
11070 font_family: settings.ui_font.family.clone(),
11071 font_features: settings.ui_font.features.clone(),
11072 font_size: rems(0.875).into(),
11073 font_weight: FontWeight::NORMAL,
11074 font_style: FontStyle::Normal,
11075 line_height: relative(settings.buffer_line_height.value()),
11076 background_color: None,
11077 underline: None,
11078 strikethrough: None,
11079 white_space: WhiteSpace::Normal,
11080 },
11081 EditorMode::Full => TextStyle {
11082 color: cx.theme().colors().editor_foreground,
11083 font_family: settings.buffer_font.family.clone(),
11084 font_features: settings.buffer_font.features.clone(),
11085 font_size: settings.buffer_font_size(cx).into(),
11086 font_weight: FontWeight::NORMAL,
11087 font_style: FontStyle::Normal,
11088 line_height: relative(settings.buffer_line_height.value()),
11089 background_color: None,
11090 underline: None,
11091 strikethrough: None,
11092 white_space: WhiteSpace::Normal,
11093 },
11094 };
11095
11096 let background = match self.mode {
11097 EditorMode::SingleLine => cx.theme().system().transparent,
11098 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11099 EditorMode::Full => cx.theme().colors().editor_background,
11100 };
11101
11102 EditorElement::new(
11103 cx.view(),
11104 EditorStyle {
11105 background,
11106 local_player: cx.theme().players().local(),
11107 text: text_style,
11108 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11109 syntax: cx.theme().syntax().clone(),
11110 status: cx.theme().status().clone(),
11111 inlay_hints_style: HighlightStyle {
11112 color: Some(cx.theme().status().hint),
11113 ..HighlightStyle::default()
11114 },
11115 suggestions_style: HighlightStyle {
11116 color: Some(cx.theme().status().predictive),
11117 ..HighlightStyle::default()
11118 },
11119 },
11120 )
11121 }
11122}
11123
11124impl ViewInputHandler for Editor {
11125 fn text_for_range(
11126 &mut self,
11127 range_utf16: Range<usize>,
11128 cx: &mut ViewContext<Self>,
11129 ) -> Option<String> {
11130 Some(
11131 self.buffer
11132 .read(cx)
11133 .read(cx)
11134 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11135 .collect(),
11136 )
11137 }
11138
11139 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11140 // Prevent the IME menu from appearing when holding down an alphabetic key
11141 // while input is disabled.
11142 if !self.input_enabled {
11143 return None;
11144 }
11145
11146 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11147 Some(range.start.0..range.end.0)
11148 }
11149
11150 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11151 let snapshot = self.buffer.read(cx).read(cx);
11152 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11153 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11154 }
11155
11156 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11157 self.clear_highlights::<InputComposition>(cx);
11158 self.ime_transaction.take();
11159 }
11160
11161 fn replace_text_in_range(
11162 &mut self,
11163 range_utf16: Option<Range<usize>>,
11164 text: &str,
11165 cx: &mut ViewContext<Self>,
11166 ) {
11167 if !self.input_enabled {
11168 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11169 return;
11170 }
11171
11172 self.transact(cx, |this, cx| {
11173 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11174 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11175 Some(this.selection_replacement_ranges(range_utf16, cx))
11176 } else {
11177 this.marked_text_ranges(cx)
11178 };
11179
11180 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11181 let newest_selection_id = this.selections.newest_anchor().id;
11182 this.selections
11183 .all::<OffsetUtf16>(cx)
11184 .iter()
11185 .zip(ranges_to_replace.iter())
11186 .find_map(|(selection, range)| {
11187 if selection.id == newest_selection_id {
11188 Some(
11189 (range.start.0 as isize - selection.head().0 as isize)
11190 ..(range.end.0 as isize - selection.head().0 as isize),
11191 )
11192 } else {
11193 None
11194 }
11195 })
11196 });
11197
11198 cx.emit(EditorEvent::InputHandled {
11199 utf16_range_to_replace: range_to_replace,
11200 text: text.into(),
11201 });
11202
11203 if let Some(new_selected_ranges) = new_selected_ranges {
11204 this.change_selections(None, cx, |selections| {
11205 selections.select_ranges(new_selected_ranges)
11206 });
11207 this.backspace(&Default::default(), cx);
11208 }
11209
11210 this.handle_input(text, cx);
11211 });
11212
11213 if let Some(transaction) = self.ime_transaction {
11214 self.buffer.update(cx, |buffer, cx| {
11215 buffer.group_until_transaction(transaction, cx);
11216 });
11217 }
11218
11219 self.unmark_text(cx);
11220 }
11221
11222 fn replace_and_mark_text_in_range(
11223 &mut self,
11224 range_utf16: Option<Range<usize>>,
11225 text: &str,
11226 new_selected_range_utf16: Option<Range<usize>>,
11227 cx: &mut ViewContext<Self>,
11228 ) {
11229 if !self.input_enabled {
11230 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11231 return;
11232 }
11233
11234 let transaction = self.transact(cx, |this, cx| {
11235 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11236 let snapshot = this.buffer.read(cx).read(cx);
11237 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11238 for marked_range in &mut marked_ranges {
11239 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11240 marked_range.start.0 += relative_range_utf16.start;
11241 marked_range.start =
11242 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11243 marked_range.end =
11244 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11245 }
11246 }
11247 Some(marked_ranges)
11248 } else if let Some(range_utf16) = range_utf16 {
11249 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11250 Some(this.selection_replacement_ranges(range_utf16, cx))
11251 } else {
11252 None
11253 };
11254
11255 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11256 let newest_selection_id = this.selections.newest_anchor().id;
11257 this.selections
11258 .all::<OffsetUtf16>(cx)
11259 .iter()
11260 .zip(ranges_to_replace.iter())
11261 .find_map(|(selection, range)| {
11262 if selection.id == newest_selection_id {
11263 Some(
11264 (range.start.0 as isize - selection.head().0 as isize)
11265 ..(range.end.0 as isize - selection.head().0 as isize),
11266 )
11267 } else {
11268 None
11269 }
11270 })
11271 });
11272
11273 cx.emit(EditorEvent::InputHandled {
11274 utf16_range_to_replace: range_to_replace,
11275 text: text.into(),
11276 });
11277
11278 if let Some(ranges) = ranges_to_replace {
11279 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11280 }
11281
11282 let marked_ranges = {
11283 let snapshot = this.buffer.read(cx).read(cx);
11284 this.selections
11285 .disjoint_anchors()
11286 .iter()
11287 .map(|selection| {
11288 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11289 })
11290 .collect::<Vec<_>>()
11291 };
11292
11293 if text.is_empty() {
11294 this.unmark_text(cx);
11295 } else {
11296 this.highlight_text::<InputComposition>(
11297 marked_ranges.clone(),
11298 HighlightStyle {
11299 underline: Some(UnderlineStyle {
11300 thickness: px(1.),
11301 color: None,
11302 wavy: false,
11303 }),
11304 ..Default::default()
11305 },
11306 cx,
11307 );
11308 }
11309
11310 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11311 let use_autoclose = this.use_autoclose;
11312 this.set_use_autoclose(false);
11313 this.handle_input(text, cx);
11314 this.set_use_autoclose(use_autoclose);
11315
11316 if let Some(new_selected_range) = new_selected_range_utf16 {
11317 let snapshot = this.buffer.read(cx).read(cx);
11318 let new_selected_ranges = marked_ranges
11319 .into_iter()
11320 .map(|marked_range| {
11321 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11322 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11323 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11324 snapshot.clip_offset_utf16(new_start, Bias::Left)
11325 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11326 })
11327 .collect::<Vec<_>>();
11328
11329 drop(snapshot);
11330 this.change_selections(None, cx, |selections| {
11331 selections.select_ranges(new_selected_ranges)
11332 });
11333 }
11334 });
11335
11336 self.ime_transaction = self.ime_transaction.or(transaction);
11337 if let Some(transaction) = self.ime_transaction {
11338 self.buffer.update(cx, |buffer, cx| {
11339 buffer.group_until_transaction(transaction, cx);
11340 });
11341 }
11342
11343 if self.text_highlights::<InputComposition>(cx).is_none() {
11344 self.ime_transaction.take();
11345 }
11346 }
11347
11348 fn bounds_for_range(
11349 &mut self,
11350 range_utf16: Range<usize>,
11351 element_bounds: gpui::Bounds<Pixels>,
11352 cx: &mut ViewContext<Self>,
11353 ) -> Option<gpui::Bounds<Pixels>> {
11354 let text_layout_details = self.text_layout_details(cx);
11355 let style = &text_layout_details.editor_style;
11356 let font_id = cx.text_system().resolve_font(&style.text.font());
11357 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11358 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11359 let em_width = cx
11360 .text_system()
11361 .typographic_bounds(font_id, font_size, 'm')
11362 .unwrap()
11363 .size
11364 .width;
11365
11366 let snapshot = self.snapshot(cx);
11367 let scroll_position = snapshot.scroll_position();
11368 let scroll_left = scroll_position.x * em_width;
11369
11370 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11371 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11372 + self.gutter_dimensions.width;
11373 let y = line_height * (start.row().as_f32() - scroll_position.y);
11374
11375 Some(Bounds {
11376 origin: element_bounds.origin + point(x, y),
11377 size: size(em_width, line_height),
11378 })
11379 }
11380}
11381
11382trait SelectionExt {
11383 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11384 fn spanned_rows(
11385 &self,
11386 include_end_if_at_line_start: bool,
11387 map: &DisplaySnapshot,
11388 ) -> Range<MultiBufferRow>;
11389}
11390
11391impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11392 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11393 let start = self
11394 .start
11395 .to_point(&map.buffer_snapshot)
11396 .to_display_point(map);
11397 let end = self
11398 .end
11399 .to_point(&map.buffer_snapshot)
11400 .to_display_point(map);
11401 if self.reversed {
11402 end..start
11403 } else {
11404 start..end
11405 }
11406 }
11407
11408 fn spanned_rows(
11409 &self,
11410 include_end_if_at_line_start: bool,
11411 map: &DisplaySnapshot,
11412 ) -> Range<MultiBufferRow> {
11413 let start = self.start.to_point(&map.buffer_snapshot);
11414 let mut end = self.end.to_point(&map.buffer_snapshot);
11415 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11416 end.row -= 1;
11417 }
11418
11419 let buffer_start = map.prev_line_boundary(start).0;
11420 let buffer_end = map.next_line_boundary(end).0;
11421 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11422 }
11423}
11424
11425impl<T: InvalidationRegion> InvalidationStack<T> {
11426 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11427 where
11428 S: Clone + ToOffset,
11429 {
11430 while let Some(region) = self.last() {
11431 let all_selections_inside_invalidation_ranges =
11432 if selections.len() == region.ranges().len() {
11433 selections
11434 .iter()
11435 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11436 .all(|(selection, invalidation_range)| {
11437 let head = selection.head().to_offset(buffer);
11438 invalidation_range.start <= head && invalidation_range.end >= head
11439 })
11440 } else {
11441 false
11442 };
11443
11444 if all_selections_inside_invalidation_ranges {
11445 break;
11446 } else {
11447 self.pop();
11448 }
11449 }
11450 }
11451}
11452
11453impl<T> Default for InvalidationStack<T> {
11454 fn default() -> Self {
11455 Self(Default::default())
11456 }
11457}
11458
11459impl<T> Deref for InvalidationStack<T> {
11460 type Target = Vec<T>;
11461
11462 fn deref(&self) -> &Self::Target {
11463 &self.0
11464 }
11465}
11466
11467impl<T> DerefMut for InvalidationStack<T> {
11468 fn deref_mut(&mut self) -> &mut Self::Target {
11469 &mut self.0
11470 }
11471}
11472
11473impl InvalidationRegion for SnippetState {
11474 fn ranges(&self) -> &[Range<Anchor>] {
11475 &self.ranges[self.active_index]
11476 }
11477}
11478
11479pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11480 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11481
11482 Box::new(move |cx: &mut BlockContext| {
11483 let group_id: SharedString = cx.block_id.to_string().into();
11484
11485 let mut text_style = cx.text_style().clone();
11486 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11487 let theme_settings = ThemeSettings::get_global(cx);
11488 text_style.font_family = theme_settings.buffer_font.family.clone();
11489 text_style.font_style = theme_settings.buffer_font.style;
11490 text_style.font_features = theme_settings.buffer_font.features.clone();
11491 text_style.font_weight = theme_settings.buffer_font.weight;
11492
11493 let multi_line_diagnostic = diagnostic.message.contains('\n');
11494
11495 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11496 if multi_line_diagnostic {
11497 v_flex()
11498 } else {
11499 h_flex()
11500 }
11501 .children(diagnostic.is_primary.then(|| {
11502 IconButton::new(("close-block", block_id), IconName::XCircle)
11503 .icon_color(Color::Muted)
11504 .size(ButtonSize::Compact)
11505 .style(ButtonStyle::Transparent)
11506 .visible_on_hover(group_id.clone())
11507 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11508 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11509 }))
11510 .child(
11511 IconButton::new(("copy-block", block_id), IconName::Copy)
11512 .icon_color(Color::Muted)
11513 .size(ButtonSize::Compact)
11514 .style(ButtonStyle::Transparent)
11515 .visible_on_hover(group_id.clone())
11516 .on_click({
11517 let message = diagnostic.message.clone();
11518 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11519 })
11520 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11521 )
11522 };
11523
11524 let icon_size = buttons(&diagnostic, cx.block_id)
11525 .into_any_element()
11526 .layout_as_root(AvailableSpace::min_size(), cx);
11527
11528 h_flex()
11529 .id(cx.block_id)
11530 .group(group_id.clone())
11531 .relative()
11532 .size_full()
11533 .pl(cx.gutter_dimensions.width)
11534 .w(cx.max_width + cx.gutter_dimensions.width)
11535 .child(
11536 div()
11537 .flex()
11538 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11539 .flex_shrink(),
11540 )
11541 .child(buttons(&diagnostic, cx.block_id))
11542 .child(div().flex().flex_shrink_0().child(
11543 StyledText::new(text_without_backticks.clone()).with_highlights(
11544 &text_style,
11545 code_ranges.iter().map(|range| {
11546 (
11547 range.clone(),
11548 HighlightStyle {
11549 font_weight: Some(FontWeight::BOLD),
11550 ..Default::default()
11551 },
11552 )
11553 }),
11554 ),
11555 ))
11556 .into_any_element()
11557 })
11558}
11559
11560pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11561 let mut text_without_backticks = String::new();
11562 let mut code_ranges = Vec::new();
11563
11564 if let Some(source) = &diagnostic.source {
11565 text_without_backticks.push_str(&source);
11566 code_ranges.push(0..source.len());
11567 text_without_backticks.push_str(": ");
11568 }
11569
11570 let mut prev_offset = 0;
11571 let mut in_code_block = false;
11572 for (ix, _) in diagnostic
11573 .message
11574 .match_indices('`')
11575 .chain([(diagnostic.message.len(), "")])
11576 {
11577 let prev_len = text_without_backticks.len();
11578 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11579 prev_offset = ix + 1;
11580 if in_code_block {
11581 code_ranges.push(prev_len..text_without_backticks.len());
11582 in_code_block = false;
11583 } else {
11584 in_code_block = true;
11585 }
11586 }
11587
11588 (text_without_backticks.into(), code_ranges)
11589}
11590
11591fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11592 match (severity, valid) {
11593 (DiagnosticSeverity::ERROR, true) => colors.error,
11594 (DiagnosticSeverity::ERROR, false) => colors.error,
11595 (DiagnosticSeverity::WARNING, true) => colors.warning,
11596 (DiagnosticSeverity::WARNING, false) => colors.warning,
11597 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11598 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11599 (DiagnosticSeverity::HINT, true) => colors.info,
11600 (DiagnosticSeverity::HINT, false) => colors.info,
11601 _ => colors.ignored,
11602 }
11603}
11604
11605pub fn styled_runs_for_code_label<'a>(
11606 label: &'a CodeLabel,
11607 syntax_theme: &'a theme::SyntaxTheme,
11608) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11609 let fade_out = HighlightStyle {
11610 fade_out: Some(0.35),
11611 ..Default::default()
11612 };
11613
11614 let mut prev_end = label.filter_range.end;
11615 label
11616 .runs
11617 .iter()
11618 .enumerate()
11619 .flat_map(move |(ix, (range, highlight_id))| {
11620 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11621 style
11622 } else {
11623 return Default::default();
11624 };
11625 let mut muted_style = style;
11626 muted_style.highlight(fade_out);
11627
11628 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11629 if range.start >= label.filter_range.end {
11630 if range.start > prev_end {
11631 runs.push((prev_end..range.start, fade_out));
11632 }
11633 runs.push((range.clone(), muted_style));
11634 } else if range.end <= label.filter_range.end {
11635 runs.push((range.clone(), style));
11636 } else {
11637 runs.push((range.start..label.filter_range.end, style));
11638 runs.push((label.filter_range.end..range.end, muted_style));
11639 }
11640 prev_end = cmp::max(prev_end, range.end);
11641
11642 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11643 runs.push((prev_end..label.text.len(), fade_out));
11644 }
11645
11646 runs
11647 })
11648}
11649
11650pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11651 let mut prev_index = 0;
11652 let mut prev_codepoint: Option<char> = None;
11653 text.char_indices()
11654 .chain([(text.len(), '\0')])
11655 .filter_map(move |(index, codepoint)| {
11656 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11657 let is_boundary = index == text.len()
11658 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11659 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11660 if is_boundary {
11661 let chunk = &text[prev_index..index];
11662 prev_index = index;
11663 Some(chunk)
11664 } else {
11665 None
11666 }
11667 })
11668}
11669
11670trait RangeToAnchorExt {
11671 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11672}
11673
11674impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11675 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11676 let start_offset = self.start.to_offset(snapshot);
11677 let end_offset = self.end.to_offset(snapshot);
11678 if start_offset == end_offset {
11679 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11680 } else {
11681 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11682 }
11683 }
11684}
11685
11686pub trait RowExt {
11687 fn as_f32(&self) -> f32;
11688
11689 fn next_row(&self) -> Self;
11690
11691 fn previous_row(&self) -> Self;
11692
11693 fn minus(&self, other: Self) -> u32;
11694}
11695
11696impl RowExt for DisplayRow {
11697 fn as_f32(&self) -> f32 {
11698 self.0 as f32
11699 }
11700
11701 fn next_row(&self) -> Self {
11702 Self(self.0 + 1)
11703 }
11704
11705 fn previous_row(&self) -> Self {
11706 Self(self.0.saturating_sub(1))
11707 }
11708
11709 fn minus(&self, other: Self) -> u32 {
11710 self.0 - other.0
11711 }
11712}
11713
11714impl RowExt for MultiBufferRow {
11715 fn as_f32(&self) -> f32 {
11716 self.0 as f32
11717 }
11718
11719 fn next_row(&self) -> Self {
11720 Self(self.0 + 1)
11721 }
11722
11723 fn previous_row(&self) -> Self {
11724 Self(self.0.saturating_sub(1))
11725 }
11726
11727 fn minus(&self, other: Self) -> u32 {
11728 self.0 - other.0
11729 }
11730}
11731
11732trait RowRangeExt {
11733 type Row;
11734
11735 fn len(&self) -> usize;
11736
11737 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
11738}
11739
11740impl RowRangeExt for Range<MultiBufferRow> {
11741 type Row = MultiBufferRow;
11742
11743 fn len(&self) -> usize {
11744 (self.end.0 - self.start.0) as usize
11745 }
11746
11747 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
11748 (self.start.0..self.end.0).map(MultiBufferRow)
11749 }
11750}
11751
11752impl RowRangeExt for Range<DisplayRow> {
11753 type Row = DisplayRow;
11754
11755 fn len(&self) -> usize {
11756 (self.end.0 - self.start.0) as usize
11757 }
11758
11759 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
11760 (self.start.0..self.end.0).map(DisplayRow)
11761 }
11762}
11763
11764fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
11765 if hunk.diff_base_byte_range.is_empty() {
11766 DiffHunkStatus::Added
11767 } else if hunk.associated_range.is_empty() {
11768 DiffHunkStatus::Removed
11769 } else {
11770 DiffHunkStatus::Modified
11771 }
11772}