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::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
52use convert_case::{Case, Casing};
53use debounced_delay::DebouncedDelay;
54pub use display_map::DisplayPoint;
55use display_map::*;
56use editor_settings::CurrentLineHighlight;
57pub use editor_settings::EditorSettings;
58use element::LineWithInvisibles;
59pub use element::{
60 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
61};
62use futures::FutureExt;
63use fuzzy::{StringMatch, StringMatchCandidate};
64use git::blame::GitBlame;
65use git::diff_hunk_to_display;
66use gpui::{
67 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
68 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
69 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
70 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
71 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
72 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
73 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
74};
75use highlight_matching_bracket::refresh_matching_bracket_highlights;
76use hover_popover::{hide_hover, HoverState};
77use hunk_diff::ExpandedHunks;
78pub(crate) use hunk_diff::HunkToExpand;
79use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
80pub use inline_completion_provider::*;
81pub use items::MAX_TAB_TITLE_LEN;
82use itertools::Itertools;
83use language::{
84 char_kind,
85 language_settings::{self, all_language_settings, InlayHintSettings},
86 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
87 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
88 Point, Selection, SelectionGoal, TransactionId,
89};
90use language::{BufferRow, Runnable, RunnableRange};
91use task::{ResolvedTask, TaskTemplate, TaskVariables};
92
93use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
94use lsp::{DiagnosticSeverity, LanguageServerId};
95use mouse_context_menu::MouseContextMenu;
96use movement::TextLayoutDetails;
97pub use multi_buffer::{
98 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
99 ToPoint,
100};
101use multi_buffer::{MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
102use ordered_float::OrderedFloat;
103use parking_lot::{Mutex, RwLock};
104use project::project_settings::{GitGutterSetting, ProjectSettings};
105use project::{
106 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
107 ProjectTransaction, TaskSourceKind, WorktreeId,
108};
109use rand::prelude::*;
110use rpc::{proto::*, ErrorExt};
111use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
112use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
113use serde::{Deserialize, Serialize};
114use settings::{Settings, SettingsStore};
115use smallvec::SmallVec;
116use snippet::Snippet;
117use std::ops::Not as _;
118use std::{
119 any::TypeId,
120 borrow::Cow,
121 cmp::{self, Ordering, Reverse},
122 mem,
123 num::NonZeroU32,
124 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
125 path::Path,
126 sync::Arc,
127 time::{Duration, Instant},
128};
129pub use sum_tree::Bias;
130use sum_tree::TreeMap;
131use text::{BufferId, OffsetUtf16, Rope};
132use theme::{
133 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
134 ThemeColors, ThemeSettings,
135};
136use ui::{
137 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
138 Tooltip,
139};
140use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
141use workspace::item::{ItemHandle, PreviewTabsSettings};
142use workspace::notifications::{DetachAndPromptErr, NotificationId};
143use workspace::{
144 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
145};
146use workspace::{OpenInTerminal, OpenTerminal, Toast};
147
148use crate::hover_links::find_url;
149
150pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
151const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
152const MAX_LINE_LEN: usize = 1024;
153const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
154const MAX_SELECTION_HISTORY_LEN: usize = 1024;
155pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
156#[doc(hidden)]
157pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
158#[doc(hidden)]
159pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
160
161pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
162
163pub fn render_parsed_markdown(
164 element_id: impl Into<ElementId>,
165 parsed: &language::ParsedMarkdown,
166 editor_style: &EditorStyle,
167 workspace: Option<WeakView<Workspace>>,
168 cx: &mut WindowContext,
169) -> InteractiveText {
170 let code_span_background_color = cx
171 .theme()
172 .colors()
173 .editor_document_highlight_read_background;
174
175 let highlights = gpui::combine_highlights(
176 parsed.highlights.iter().filter_map(|(range, highlight)| {
177 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
178 Some((range.clone(), highlight))
179 }),
180 parsed
181 .regions
182 .iter()
183 .zip(&parsed.region_ranges)
184 .filter_map(|(region, range)| {
185 if region.code {
186 Some((
187 range.clone(),
188 HighlightStyle {
189 background_color: Some(code_span_background_color),
190 ..Default::default()
191 },
192 ))
193 } else {
194 None
195 }
196 }),
197 );
198
199 let mut links = Vec::new();
200 let mut link_ranges = Vec::new();
201 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
202 if let Some(link) = region.link.clone() {
203 links.push(link);
204 link_ranges.push(range.clone());
205 }
206 }
207
208 InteractiveText::new(
209 element_id,
210 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
211 )
212 .on_click(link_ranges, move |clicked_range_ix, cx| {
213 match &links[clicked_range_ix] {
214 markdown::Link::Web { url } => cx.open_url(url),
215 markdown::Link::Path { path } => {
216 if let Some(workspace) = &workspace {
217 _ = workspace.update(cx, |workspace, cx| {
218 workspace.open_abs_path(path.clone(), false, cx).detach();
219 });
220 }
221 }
222 }
223 })
224}
225
226#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
227pub(crate) enum InlayId {
228 Suggestion(usize),
229 Hint(usize),
230}
231
232impl InlayId {
233 fn id(&self) -> usize {
234 match self {
235 Self::Suggestion(id) => *id,
236 Self::Hint(id) => *id,
237 }
238 }
239}
240
241enum DiffRowHighlight {}
242enum DocumentHighlightRead {}
243enum DocumentHighlightWrite {}
244enum InputComposition {}
245
246#[derive(Copy, Clone, PartialEq, Eq)]
247pub enum Direction {
248 Prev,
249 Next,
250}
251
252pub fn init_settings(cx: &mut AppContext) {
253 EditorSettings::register(cx);
254}
255
256pub fn init(cx: &mut AppContext) {
257 init_settings(cx);
258
259 workspace::register_project_item::<Editor>(cx);
260 workspace::register_followable_item::<Editor>(cx);
261 workspace::register_deserializable_item::<Editor>(cx);
262 cx.observe_new_views(
263 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
264 workspace.register_action(Editor::new_file);
265 workspace.register_action(Editor::new_file_in_direction);
266 },
267 )
268 .detach();
269
270 cx.on_action(move |_: &workspace::NewFile, cx| {
271 let app_state = workspace::AppState::global(cx);
272 if let Some(app_state) = app_state.upgrade() {
273 workspace::open_new(app_state, cx, |workspace, cx| {
274 Editor::new_file(workspace, &Default::default(), cx)
275 })
276 .detach();
277 }
278 });
279 cx.on_action(move |_: &workspace::NewWindow, cx| {
280 let app_state = workspace::AppState::global(cx);
281 if let Some(app_state) = app_state.upgrade() {
282 workspace::open_new(app_state, cx, |workspace, cx| {
283 Editor::new_file(workspace, &Default::default(), cx)
284 })
285 .detach();
286 }
287 });
288}
289
290pub struct SearchWithinRange;
291
292trait InvalidationRegion {
293 fn ranges(&self) -> &[Range<Anchor>];
294}
295
296#[derive(Clone, Debug, PartialEq)]
297pub enum SelectPhase {
298 Begin {
299 position: DisplayPoint,
300 add: bool,
301 click_count: usize,
302 },
303 BeginColumnar {
304 position: DisplayPoint,
305 reset: bool,
306 goal_column: u32,
307 },
308 Extend {
309 position: DisplayPoint,
310 click_count: usize,
311 },
312 Update {
313 position: DisplayPoint,
314 goal_column: u32,
315 scroll_delta: gpui::Point<f32>,
316 },
317 End,
318}
319
320#[derive(Clone, Debug)]
321pub enum SelectMode {
322 Character,
323 Word(Range<Anchor>),
324 Line(Range<Anchor>),
325 All,
326}
327
328#[derive(Copy, Clone, PartialEq, Eq, Debug)]
329pub enum EditorMode {
330 SingleLine,
331 AutoHeight { max_lines: usize },
332 Full,
333}
334
335#[derive(Clone, Debug)]
336pub enum SoftWrap {
337 None,
338 PreferLine,
339 EditorWidth,
340 Column(u32),
341}
342
343#[derive(Clone)]
344pub struct EditorStyle {
345 pub background: Hsla,
346 pub local_player: PlayerColor,
347 pub text: TextStyle,
348 pub scrollbar_width: Pixels,
349 pub syntax: Arc<SyntaxTheme>,
350 pub status: StatusColors,
351 pub inlay_hints_style: HighlightStyle,
352 pub suggestions_style: HighlightStyle,
353}
354
355impl Default for EditorStyle {
356 fn default() -> Self {
357 Self {
358 background: Hsla::default(),
359 local_player: PlayerColor::default(),
360 text: TextStyle::default(),
361 scrollbar_width: Pixels::default(),
362 syntax: Default::default(),
363 // HACK: Status colors don't have a real default.
364 // We should look into removing the status colors from the editor
365 // style and retrieve them directly from the theme.
366 status: StatusColors::dark(),
367 inlay_hints_style: HighlightStyle::default(),
368 suggestions_style: HighlightStyle::default(),
369 }
370 }
371}
372
373type CompletionId = usize;
374
375// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
376// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
377
378type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
379
380struct ScrollbarMarkerState {
381 scrollbar_size: Size<Pixels>,
382 dirty: bool,
383 markers: Arc<[PaintQuad]>,
384 pending_refresh: Option<Task<Result<()>>>,
385}
386
387impl ScrollbarMarkerState {
388 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
389 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
390 }
391}
392
393impl Default for ScrollbarMarkerState {
394 fn default() -> Self {
395 Self {
396 scrollbar_size: Size::default(),
397 dirty: false,
398 markers: Arc::from([]),
399 pending_refresh: None,
400 }
401 }
402}
403
404#[derive(Clone, Debug)]
405struct RunnableTasks {
406 templates: Vec<(TaskSourceKind, TaskTemplate)>,
407 // We need the column at which the task context evaluation should take place.
408 column: u32,
409 extra_variables: HashMap<String, String>,
410}
411
412#[derive(Clone)]
413struct ResolvedTasks {
414 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
415 position: Anchor,
416}
417
418/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
419///
420/// See the [module level documentation](self) for more information.
421pub struct Editor {
422 focus_handle: FocusHandle,
423 /// The text buffer being edited
424 buffer: Model<MultiBuffer>,
425 /// Map of how text in the buffer should be displayed.
426 /// Handles soft wraps, folds, fake inlay text insertions, etc.
427 pub display_map: Model<DisplayMap>,
428 pub selections: SelectionsCollection,
429 pub scroll_manager: ScrollManager,
430 columnar_selection_tail: Option<Anchor>,
431 add_selections_state: Option<AddSelectionsState>,
432 select_next_state: Option<SelectNextState>,
433 select_prev_state: Option<SelectNextState>,
434 selection_history: SelectionHistory,
435 autoclose_regions: Vec<AutocloseRegion>,
436 snippet_stack: InvalidationStack<SnippetState>,
437 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
438 ime_transaction: Option<TransactionId>,
439 active_diagnostics: Option<ActiveDiagnosticGroup>,
440 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
441 project: Option<Model<Project>>,
442 completion_provider: Option<Box<dyn CompletionProvider>>,
443 collaboration_hub: Option<Box<dyn CollaborationHub>>,
444 blink_manager: Model<BlinkManager>,
445 show_cursor_names: bool,
446 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
447 pub show_local_selections: bool,
448 mode: EditorMode,
449 show_breadcrumbs: bool,
450 show_gutter: bool,
451 show_wrap_guides: Option<bool>,
452 placeholder_text: Option<Arc<str>>,
453 highlight_order: usize,
454 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
455 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
456 scrollbar_marker_state: ScrollbarMarkerState,
457 nav_history: Option<ItemNavHistory>,
458 context_menu: RwLock<Option<ContextMenu>>,
459 mouse_context_menu: Option<MouseContextMenu>,
460 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
461 find_all_references_task_sources: Vec<Anchor>,
462 next_completion_id: CompletionId,
463 completion_documentation_pre_resolve_debounce: DebouncedDelay,
464 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
465 code_actions_task: Option<Task<()>>,
466 document_highlights_task: Option<Task<()>>,
467 pending_rename: Option<RenameState>,
468 searchable: bool,
469 cursor_shape: CursorShape,
470 current_line_highlight: CurrentLineHighlight,
471 collapse_matches: bool,
472 autoindent_mode: Option<AutoindentMode>,
473 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
474 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
475 input_enabled: bool,
476 use_modal_editing: bool,
477 read_only: bool,
478 leader_peer_id: Option<PeerId>,
479 remote_id: Option<ViewId>,
480 hover_state: HoverState,
481 gutter_hovered: bool,
482 hovered_link_state: Option<HoveredLinkState>,
483 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
484 active_inline_completion: Option<Inlay>,
485 show_inline_completions: bool,
486 inlay_hint_cache: InlayHintCache,
487 expanded_hunks: ExpandedHunks,
488 next_inlay_id: usize,
489 _subscriptions: Vec<Subscription>,
490 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
491 gutter_dimensions: GutterDimensions,
492 pub vim_replace_map: HashMap<Range<usize>, String>,
493 style: Option<EditorStyle>,
494 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
495 use_autoclose: bool,
496 auto_replace_emoji_shortcode: bool,
497 show_git_blame_gutter: bool,
498 show_git_blame_inline: bool,
499 show_git_blame_inline_delay_task: Option<Task<()>>,
500 git_blame_inline_enabled: bool,
501 blame: Option<Model<GitBlame>>,
502 blame_subscription: Option<Subscription>,
503 custom_context_menu: Option<
504 Box<
505 dyn 'static
506 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
507 >,
508 >,
509 last_bounds: Option<Bounds<Pixels>>,
510 expect_bounds_change: Option<Bounds<Pixels>>,
511 tasks: HashMap<(BufferId, BufferRow), (usize, RunnableTasks)>,
512 tasks_update_task: Option<Task<()>>,
513}
514
515#[derive(Clone)]
516pub struct EditorSnapshot {
517 pub mode: EditorMode,
518 show_gutter: bool,
519 render_git_blame_gutter: bool,
520 pub display_snapshot: DisplaySnapshot,
521 pub placeholder_text: Option<Arc<str>>,
522 is_focused: bool,
523 scroll_anchor: ScrollAnchor,
524 ongoing_scroll: OngoingScroll,
525 current_line_highlight: CurrentLineHighlight,
526 gutter_hovered: bool,
527}
528
529const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
530
531#[derive(Debug, Clone, Copy)]
532pub struct GutterDimensions {
533 pub left_padding: Pixels,
534 pub right_padding: Pixels,
535 pub width: Pixels,
536 pub margin: Pixels,
537 pub git_blame_entries_width: Option<Pixels>,
538}
539
540impl Default for GutterDimensions {
541 fn default() -> Self {
542 Self {
543 left_padding: Pixels::ZERO,
544 right_padding: Pixels::ZERO,
545 width: Pixels::ZERO,
546 margin: Pixels::ZERO,
547 git_blame_entries_width: None,
548 }
549 }
550}
551
552#[derive(Debug)]
553pub struct RemoteSelection {
554 pub replica_id: ReplicaId,
555 pub selection: Selection<Anchor>,
556 pub cursor_shape: CursorShape,
557 pub peer_id: PeerId,
558 pub line_mode: bool,
559 pub participant_index: Option<ParticipantIndex>,
560 pub user_name: Option<SharedString>,
561}
562
563#[derive(Clone, Debug)]
564struct SelectionHistoryEntry {
565 selections: Arc<[Selection<Anchor>]>,
566 select_next_state: Option<SelectNextState>,
567 select_prev_state: Option<SelectNextState>,
568 add_selections_state: Option<AddSelectionsState>,
569}
570
571enum SelectionHistoryMode {
572 Normal,
573 Undoing,
574 Redoing,
575}
576
577#[derive(Clone, PartialEq, Eq, Hash)]
578struct HoveredCursor {
579 replica_id: u16,
580 selection_id: usize,
581}
582
583impl Default for SelectionHistoryMode {
584 fn default() -> Self {
585 Self::Normal
586 }
587}
588
589#[derive(Default)]
590struct SelectionHistory {
591 #[allow(clippy::type_complexity)]
592 selections_by_transaction:
593 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
594 mode: SelectionHistoryMode,
595 undo_stack: VecDeque<SelectionHistoryEntry>,
596 redo_stack: VecDeque<SelectionHistoryEntry>,
597}
598
599impl SelectionHistory {
600 fn insert_transaction(
601 &mut self,
602 transaction_id: TransactionId,
603 selections: Arc<[Selection<Anchor>]>,
604 ) {
605 self.selections_by_transaction
606 .insert(transaction_id, (selections, None));
607 }
608
609 #[allow(clippy::type_complexity)]
610 fn transaction(
611 &self,
612 transaction_id: TransactionId,
613 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
614 self.selections_by_transaction.get(&transaction_id)
615 }
616
617 #[allow(clippy::type_complexity)]
618 fn transaction_mut(
619 &mut self,
620 transaction_id: TransactionId,
621 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
622 self.selections_by_transaction.get_mut(&transaction_id)
623 }
624
625 fn push(&mut self, entry: SelectionHistoryEntry) {
626 if !entry.selections.is_empty() {
627 match self.mode {
628 SelectionHistoryMode::Normal => {
629 self.push_undo(entry);
630 self.redo_stack.clear();
631 }
632 SelectionHistoryMode::Undoing => self.push_redo(entry),
633 SelectionHistoryMode::Redoing => self.push_undo(entry),
634 }
635 }
636 }
637
638 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
639 if self
640 .undo_stack
641 .back()
642 .map_or(true, |e| e.selections != entry.selections)
643 {
644 self.undo_stack.push_back(entry);
645 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
646 self.undo_stack.pop_front();
647 }
648 }
649 }
650
651 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
652 if self
653 .redo_stack
654 .back()
655 .map_or(true, |e| e.selections != entry.selections)
656 {
657 self.redo_stack.push_back(entry);
658 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
659 self.redo_stack.pop_front();
660 }
661 }
662 }
663}
664
665struct RowHighlight {
666 index: usize,
667 range: RangeInclusive<Anchor>,
668 color: Option<Hsla>,
669 should_autoscroll: bool,
670}
671
672#[derive(Clone, Debug)]
673struct AddSelectionsState {
674 above: bool,
675 stack: Vec<usize>,
676}
677
678#[derive(Clone)]
679struct SelectNextState {
680 query: AhoCorasick,
681 wordwise: bool,
682 done: bool,
683}
684
685impl std::fmt::Debug for SelectNextState {
686 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
687 f.debug_struct(std::any::type_name::<Self>())
688 .field("wordwise", &self.wordwise)
689 .field("done", &self.done)
690 .finish()
691 }
692}
693
694#[derive(Debug)]
695struct AutocloseRegion {
696 selection_id: usize,
697 range: Range<Anchor>,
698 pair: BracketPair,
699}
700
701#[derive(Debug)]
702struct SnippetState {
703 ranges: Vec<Vec<Range<Anchor>>>,
704 active_index: usize,
705}
706
707#[doc(hidden)]
708pub struct RenameState {
709 pub range: Range<Anchor>,
710 pub old_name: Arc<str>,
711 pub editor: View<Editor>,
712 block_id: BlockId,
713}
714
715struct InvalidationStack<T>(Vec<T>);
716
717struct RegisteredInlineCompletionProvider {
718 provider: Arc<dyn InlineCompletionProviderHandle>,
719 _subscription: Subscription,
720}
721
722enum ContextMenu {
723 Completions(CompletionsMenu),
724 CodeActions(CodeActionsMenu),
725}
726
727impl ContextMenu {
728 fn select_first(
729 &mut self,
730 project: Option<&Model<Project>>,
731 cx: &mut ViewContext<Editor>,
732 ) -> bool {
733 if self.visible() {
734 match self {
735 ContextMenu::Completions(menu) => menu.select_first(project, cx),
736 ContextMenu::CodeActions(menu) => menu.select_first(cx),
737 }
738 true
739 } else {
740 false
741 }
742 }
743
744 fn select_prev(
745 &mut self,
746 project: Option<&Model<Project>>,
747 cx: &mut ViewContext<Editor>,
748 ) -> bool {
749 if self.visible() {
750 match self {
751 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
752 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
753 }
754 true
755 } else {
756 false
757 }
758 }
759
760 fn select_next(
761 &mut self,
762 project: Option<&Model<Project>>,
763 cx: &mut ViewContext<Editor>,
764 ) -> bool {
765 if self.visible() {
766 match self {
767 ContextMenu::Completions(menu) => menu.select_next(project, cx),
768 ContextMenu::CodeActions(menu) => menu.select_next(cx),
769 }
770 true
771 } else {
772 false
773 }
774 }
775
776 fn select_last(
777 &mut self,
778 project: Option<&Model<Project>>,
779 cx: &mut ViewContext<Editor>,
780 ) -> bool {
781 if self.visible() {
782 match self {
783 ContextMenu::Completions(menu) => menu.select_last(project, cx),
784 ContextMenu::CodeActions(menu) => menu.select_last(cx),
785 }
786 true
787 } else {
788 false
789 }
790 }
791
792 fn visible(&self) -> bool {
793 match self {
794 ContextMenu::Completions(menu) => menu.visible(),
795 ContextMenu::CodeActions(menu) => menu.visible(),
796 }
797 }
798
799 fn render(
800 &self,
801 cursor_position: DisplayPoint,
802 style: &EditorStyle,
803 max_height: Pixels,
804 workspace: Option<WeakView<Workspace>>,
805 cx: &mut ViewContext<Editor>,
806 ) -> (ContextMenuOrigin, AnyElement) {
807 match self {
808 ContextMenu::Completions(menu) => (
809 ContextMenuOrigin::EditorPoint(cursor_position),
810 menu.render(style, max_height, workspace, cx),
811 ),
812 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
813 }
814 }
815}
816
817enum ContextMenuOrigin {
818 EditorPoint(DisplayPoint),
819 GutterIndicator(DisplayRow),
820}
821
822#[derive(Clone)]
823struct CompletionsMenu {
824 id: CompletionId,
825 initial_position: Anchor,
826 buffer: Model<Buffer>,
827 completions: Arc<RwLock<Box<[Completion]>>>,
828 match_candidates: Arc<[StringMatchCandidate]>,
829 matches: Arc<[StringMatch]>,
830 selected_item: usize,
831 scroll_handle: UniformListScrollHandle,
832 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
833}
834
835impl CompletionsMenu {
836 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
837 self.selected_item = 0;
838 self.scroll_handle.scroll_to_item(self.selected_item);
839 self.attempt_resolve_selected_completion_documentation(project, cx);
840 cx.notify();
841 }
842
843 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
844 if self.selected_item > 0 {
845 self.selected_item -= 1;
846 } else {
847 self.selected_item = self.matches.len() - 1;
848 }
849 self.scroll_handle.scroll_to_item(self.selected_item);
850 self.attempt_resolve_selected_completion_documentation(project, cx);
851 cx.notify();
852 }
853
854 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
855 if self.selected_item + 1 < self.matches.len() {
856 self.selected_item += 1;
857 } else {
858 self.selected_item = 0;
859 }
860 self.scroll_handle.scroll_to_item(self.selected_item);
861 self.attempt_resolve_selected_completion_documentation(project, cx);
862 cx.notify();
863 }
864
865 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
866 self.selected_item = self.matches.len() - 1;
867 self.scroll_handle.scroll_to_item(self.selected_item);
868 self.attempt_resolve_selected_completion_documentation(project, cx);
869 cx.notify();
870 }
871
872 fn pre_resolve_completion_documentation(
873 buffer: Model<Buffer>,
874 completions: Arc<RwLock<Box<[Completion]>>>,
875 matches: Arc<[StringMatch]>,
876 editor: &Editor,
877 cx: &mut ViewContext<Editor>,
878 ) -> Task<()> {
879 let settings = EditorSettings::get_global(cx);
880 if !settings.show_completion_documentation {
881 return Task::ready(());
882 }
883
884 let Some(provider) = editor.completion_provider.as_ref() else {
885 return Task::ready(());
886 };
887
888 let resolve_task = provider.resolve_completions(
889 buffer,
890 matches.iter().map(|m| m.candidate_id).collect(),
891 completions.clone(),
892 cx,
893 );
894
895 return cx.spawn(move |this, mut cx| async move {
896 if let Some(true) = resolve_task.await.log_err() {
897 this.update(&mut cx, |_, cx| cx.notify()).ok();
898 }
899 });
900 }
901
902 fn attempt_resolve_selected_completion_documentation(
903 &mut self,
904 project: Option<&Model<Project>>,
905 cx: &mut ViewContext<Editor>,
906 ) {
907 let settings = EditorSettings::get_global(cx);
908 if !settings.show_completion_documentation {
909 return;
910 }
911
912 let completion_index = self.matches[self.selected_item].candidate_id;
913 let Some(project) = project else {
914 return;
915 };
916
917 let resolve_task = project.update(cx, |project, cx| {
918 project.resolve_completions(
919 self.buffer.clone(),
920 vec![completion_index],
921 self.completions.clone(),
922 cx,
923 )
924 });
925
926 let delay_ms =
927 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
928 let delay = Duration::from_millis(delay_ms);
929
930 self.selected_completion_documentation_resolve_debounce
931 .lock()
932 .fire_new(delay, cx, |_, cx| {
933 cx.spawn(move |this, mut cx| async move {
934 if let Some(true) = resolve_task.await.log_err() {
935 this.update(&mut cx, |_, cx| cx.notify()).ok();
936 }
937 })
938 });
939 }
940
941 fn visible(&self) -> bool {
942 !self.matches.is_empty()
943 }
944
945 fn render(
946 &self,
947 style: &EditorStyle,
948 max_height: Pixels,
949 workspace: Option<WeakView<Workspace>>,
950 cx: &mut ViewContext<Editor>,
951 ) -> AnyElement {
952 let settings = EditorSettings::get_global(cx);
953 let show_completion_documentation = settings.show_completion_documentation;
954
955 let widest_completion_ix = self
956 .matches
957 .iter()
958 .enumerate()
959 .max_by_key(|(_, mat)| {
960 let completions = self.completions.read();
961 let completion = &completions[mat.candidate_id];
962 let documentation = &completion.documentation;
963
964 let mut len = completion.label.text.chars().count();
965 if let Some(Documentation::SingleLine(text)) = documentation {
966 if show_completion_documentation {
967 len += text.chars().count();
968 }
969 }
970
971 len
972 })
973 .map(|(ix, _)| ix);
974
975 let completions = self.completions.clone();
976 let matches = self.matches.clone();
977 let selected_item = self.selected_item;
978 let style = style.clone();
979
980 let multiline_docs = if show_completion_documentation {
981 let mat = &self.matches[selected_item];
982 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
983 Some(Documentation::MultiLinePlainText(text)) => {
984 Some(div().child(SharedString::from(text.clone())))
985 }
986 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
987 Some(div().child(render_parsed_markdown(
988 "completions_markdown",
989 parsed,
990 &style,
991 workspace,
992 cx,
993 )))
994 }
995 _ => None,
996 };
997 multiline_docs.map(|div| {
998 div.id("multiline_docs")
999 .max_h(max_height)
1000 .flex_1()
1001 .px_1p5()
1002 .py_1()
1003 .min_w(px(260.))
1004 .max_w(px(640.))
1005 .w(px(500.))
1006 .overflow_y_scroll()
1007 .occlude()
1008 })
1009 } else {
1010 None
1011 };
1012
1013 let list = uniform_list(
1014 cx.view().clone(),
1015 "completions",
1016 matches.len(),
1017 move |_editor, range, cx| {
1018 let start_ix = range.start;
1019 let completions_guard = completions.read();
1020
1021 matches[range]
1022 .iter()
1023 .enumerate()
1024 .map(|(ix, mat)| {
1025 let item_ix = start_ix + ix;
1026 let candidate_id = mat.candidate_id;
1027 let completion = &completions_guard[candidate_id];
1028
1029 let documentation = if show_completion_documentation {
1030 &completion.documentation
1031 } else {
1032 &None
1033 };
1034
1035 let highlights = gpui::combine_highlights(
1036 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1037 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1038 |(range, mut highlight)| {
1039 // Ignore font weight for syntax highlighting, as we'll use it
1040 // for fuzzy matches.
1041 highlight.font_weight = None;
1042
1043 if completion.lsp_completion.deprecated.unwrap_or(false) {
1044 highlight.strikethrough = Some(StrikethroughStyle {
1045 thickness: 1.0.into(),
1046 ..Default::default()
1047 });
1048 highlight.color = Some(cx.theme().colors().text_muted);
1049 }
1050
1051 (range, highlight)
1052 },
1053 ),
1054 );
1055 let completion_label = StyledText::new(completion.label.text.clone())
1056 .with_highlights(&style.text, highlights);
1057 let documentation_label =
1058 if let Some(Documentation::SingleLine(text)) = documentation {
1059 if text.trim().is_empty() {
1060 None
1061 } else {
1062 Some(
1063 h_flex().ml_4().child(
1064 Label::new(text.clone())
1065 .size(LabelSize::Small)
1066 .color(Color::Muted),
1067 ),
1068 )
1069 }
1070 } else {
1071 None
1072 };
1073
1074 div().min_w(px(220.)).max_w(px(540.)).child(
1075 ListItem::new(mat.candidate_id)
1076 .inset(true)
1077 .selected(item_ix == selected_item)
1078 .on_click(cx.listener(move |editor, _event, cx| {
1079 cx.stop_propagation();
1080 if let Some(task) = editor.confirm_completion(
1081 &ConfirmCompletion {
1082 item_ix: Some(item_ix),
1083 },
1084 cx,
1085 ) {
1086 task.detach_and_log_err(cx)
1087 }
1088 }))
1089 .child(h_flex().overflow_hidden().child(completion_label))
1090 .end_slot::<Div>(documentation_label),
1091 )
1092 })
1093 .collect()
1094 },
1095 )
1096 .occlude()
1097 .max_h(max_height)
1098 .track_scroll(self.scroll_handle.clone())
1099 .with_width_from_item(widest_completion_ix);
1100
1101 Popover::new()
1102 .child(list)
1103 .when_some(multiline_docs, |popover, multiline_docs| {
1104 popover.aside(multiline_docs)
1105 })
1106 .into_any_element()
1107 }
1108
1109 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1110 let mut matches = if let Some(query) = query {
1111 fuzzy::match_strings(
1112 &self.match_candidates,
1113 query,
1114 query.chars().any(|c| c.is_uppercase()),
1115 100,
1116 &Default::default(),
1117 executor,
1118 )
1119 .await
1120 } else {
1121 self.match_candidates
1122 .iter()
1123 .enumerate()
1124 .map(|(candidate_id, candidate)| StringMatch {
1125 candidate_id,
1126 score: Default::default(),
1127 positions: Default::default(),
1128 string: candidate.string.clone(),
1129 })
1130 .collect()
1131 };
1132
1133 // Remove all candidates where the query's start does not match the start of any word in the candidate
1134 if let Some(query) = query {
1135 if let Some(query_start) = query.chars().next() {
1136 matches.retain(|string_match| {
1137 split_words(&string_match.string).any(|word| {
1138 // Check that the first codepoint of the word as lowercase matches the first
1139 // codepoint of the query as lowercase
1140 word.chars()
1141 .flat_map(|codepoint| codepoint.to_lowercase())
1142 .zip(query_start.to_lowercase())
1143 .all(|(word_cp, query_cp)| word_cp == query_cp)
1144 })
1145 });
1146 }
1147 }
1148
1149 let completions = self.completions.read();
1150 matches.sort_unstable_by_key(|mat| {
1151 // We do want to strike a balance here between what the language server tells us
1152 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1153 // `Creat` and there is a local variable called `CreateComponent`).
1154 // So what we do is: we bucket all matches into two buckets
1155 // - Strong matches
1156 // - Weak matches
1157 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1158 // and the Weak matches are the rest.
1159 //
1160 // For the strong matches, we sort by the language-servers score first and for the weak
1161 // matches, we prefer our fuzzy finder first.
1162 //
1163 // The thinking behind that: it's useless to take the sort_text the language-server gives
1164 // us into account when it's obviously a bad match.
1165
1166 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1167 enum MatchScore<'a> {
1168 Strong {
1169 sort_text: Option<&'a str>,
1170 score: Reverse<OrderedFloat<f64>>,
1171 sort_key: (usize, &'a str),
1172 },
1173 Weak {
1174 score: Reverse<OrderedFloat<f64>>,
1175 sort_text: Option<&'a str>,
1176 sort_key: (usize, &'a str),
1177 },
1178 }
1179
1180 let completion = &completions[mat.candidate_id];
1181 let sort_key = completion.sort_key();
1182 let sort_text = completion.lsp_completion.sort_text.as_deref();
1183 let score = Reverse(OrderedFloat(mat.score));
1184
1185 if mat.score >= 0.2 {
1186 MatchScore::Strong {
1187 sort_text,
1188 score,
1189 sort_key,
1190 }
1191 } else {
1192 MatchScore::Weak {
1193 score,
1194 sort_text,
1195 sort_key,
1196 }
1197 }
1198 });
1199
1200 for mat in &mut matches {
1201 let completion = &completions[mat.candidate_id];
1202 mat.string.clone_from(&completion.label.text);
1203 for position in &mut mat.positions {
1204 *position += completion.label.filter_range.start;
1205 }
1206 }
1207 drop(completions);
1208
1209 self.matches = matches.into();
1210 self.selected_item = 0;
1211 }
1212}
1213
1214#[derive(Clone)]
1215struct CodeActionContents {
1216 tasks: Option<Arc<ResolvedTasks>>,
1217 actions: Option<Arc<[CodeAction]>>,
1218}
1219
1220impl CodeActionContents {
1221 fn len(&self) -> usize {
1222 match (&self.tasks, &self.actions) {
1223 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1224 (Some(tasks), None) => tasks.templates.len(),
1225 (None, Some(actions)) => actions.len(),
1226 (None, None) => 0,
1227 }
1228 }
1229
1230 fn is_empty(&self) -> bool {
1231 match (&self.tasks, &self.actions) {
1232 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1233 (Some(tasks), None) => tasks.templates.is_empty(),
1234 (None, Some(actions)) => actions.is_empty(),
1235 (None, None) => true,
1236 }
1237 }
1238
1239 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1240 self.tasks
1241 .iter()
1242 .flat_map(|tasks| {
1243 tasks
1244 .templates
1245 .iter()
1246 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1247 })
1248 .chain(self.actions.iter().flat_map(|actions| {
1249 actions
1250 .iter()
1251 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1252 }))
1253 }
1254 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1255 match (&self.tasks, &self.actions) {
1256 (Some(tasks), Some(actions)) => {
1257 if index < tasks.templates.len() {
1258 tasks
1259 .templates
1260 .get(index)
1261 .cloned()
1262 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1263 } else {
1264 actions
1265 .get(index - tasks.templates.len())
1266 .cloned()
1267 .map(CodeActionsItem::CodeAction)
1268 }
1269 }
1270 (Some(tasks), None) => tasks
1271 .templates
1272 .get(index)
1273 .cloned()
1274 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1275 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1276 (None, None) => None,
1277 }
1278 }
1279}
1280
1281#[allow(clippy::large_enum_variant)]
1282#[derive(Clone)]
1283enum CodeActionsItem {
1284 Task(TaskSourceKind, ResolvedTask),
1285 CodeAction(CodeAction),
1286}
1287
1288impl CodeActionsItem {
1289 fn as_task(&self) -> Option<&ResolvedTask> {
1290 let Self::Task(_, task) = self else {
1291 return None;
1292 };
1293 Some(task)
1294 }
1295 fn as_code_action(&self) -> Option<&CodeAction> {
1296 let Self::CodeAction(action) = self else {
1297 return None;
1298 };
1299 Some(action)
1300 }
1301 fn label(&self) -> String {
1302 match self {
1303 Self::CodeAction(action) => action.lsp_action.title.clone(),
1304 Self::Task(_, task) => task.resolved_label.clone(),
1305 }
1306 }
1307}
1308
1309struct CodeActionsMenu {
1310 actions: CodeActionContents,
1311 buffer: Model<Buffer>,
1312 selected_item: usize,
1313 scroll_handle: UniformListScrollHandle,
1314 deployed_from_indicator: Option<DisplayRow>,
1315}
1316
1317impl CodeActionsMenu {
1318 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1319 self.selected_item = 0;
1320 self.scroll_handle.scroll_to_item(self.selected_item);
1321 cx.notify()
1322 }
1323
1324 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1325 if self.selected_item > 0 {
1326 self.selected_item -= 1;
1327 } else {
1328 self.selected_item = self.actions.len() - 1;
1329 }
1330 self.scroll_handle.scroll_to_item(self.selected_item);
1331 cx.notify();
1332 }
1333
1334 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1335 if self.selected_item + 1 < self.actions.len() {
1336 self.selected_item += 1;
1337 } else {
1338 self.selected_item = 0;
1339 }
1340 self.scroll_handle.scroll_to_item(self.selected_item);
1341 cx.notify();
1342 }
1343
1344 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1345 self.selected_item = self.actions.len() - 1;
1346 self.scroll_handle.scroll_to_item(self.selected_item);
1347 cx.notify()
1348 }
1349
1350 fn visible(&self) -> bool {
1351 !self.actions.is_empty()
1352 }
1353
1354 fn render(
1355 &self,
1356 cursor_position: DisplayPoint,
1357 _style: &EditorStyle,
1358 max_height: Pixels,
1359 cx: &mut ViewContext<Editor>,
1360 ) -> (ContextMenuOrigin, AnyElement) {
1361 let actions = self.actions.clone();
1362 let selected_item = self.selected_item;
1363 let element = uniform_list(
1364 cx.view().clone(),
1365 "code_actions_menu",
1366 self.actions.len(),
1367 move |_this, range, cx| {
1368 actions
1369 .iter()
1370 .skip(range.start)
1371 .take(range.end - range.start)
1372 .enumerate()
1373 .map(|(ix, action)| {
1374 let item_ix = range.start + ix;
1375 let selected = selected_item == item_ix;
1376 let colors = cx.theme().colors();
1377 div()
1378 .px_2()
1379 .text_color(colors.text)
1380 .when(selected, |style| {
1381 style
1382 .bg(colors.element_active)
1383 .text_color(colors.text_accent)
1384 })
1385 .hover(|style| {
1386 style
1387 .bg(colors.element_hover)
1388 .text_color(colors.text_accent)
1389 })
1390 .whitespace_nowrap()
1391 .when_some(action.as_code_action(), |this, action| {
1392 this.on_mouse_down(
1393 MouseButton::Left,
1394 cx.listener(move |editor, _, cx| {
1395 cx.stop_propagation();
1396 if let Some(task) = editor.confirm_code_action(
1397 &ConfirmCodeAction {
1398 item_ix: Some(item_ix),
1399 },
1400 cx,
1401 ) {
1402 task.detach_and_log_err(cx)
1403 }
1404 }),
1405 )
1406 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1407 .child(SharedString::from(action.lsp_action.title.clone()))
1408 })
1409 .when_some(action.as_task(), |this, task| {
1410 this.on_mouse_down(
1411 MouseButton::Left,
1412 cx.listener(move |editor, _, cx| {
1413 cx.stop_propagation();
1414 if let Some(task) = editor.confirm_code_action(
1415 &ConfirmCodeAction {
1416 item_ix: Some(item_ix),
1417 },
1418 cx,
1419 ) {
1420 task.detach_and_log_err(cx)
1421 }
1422 }),
1423 )
1424 .child(SharedString::from(task.resolved_label.clone()))
1425 })
1426 })
1427 .collect()
1428 },
1429 )
1430 .elevation_1(cx)
1431 .px_2()
1432 .py_1()
1433 .max_h(max_height)
1434 .occlude()
1435 .track_scroll(self.scroll_handle.clone())
1436 .with_width_from_item(
1437 self.actions
1438 .iter()
1439 .enumerate()
1440 .max_by_key(|(_, action)| match action {
1441 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1442 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1443 })
1444 .map(|(ix, _)| ix),
1445 )
1446 .into_any_element();
1447
1448 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1449 ContextMenuOrigin::GutterIndicator(row)
1450 } else {
1451 ContextMenuOrigin::EditorPoint(cursor_position)
1452 };
1453
1454 (cursor_position, element)
1455 }
1456}
1457
1458#[derive(Debug)]
1459struct ActiveDiagnosticGroup {
1460 primary_range: Range<Anchor>,
1461 primary_message: String,
1462 group_id: usize,
1463 blocks: HashMap<BlockId, Diagnostic>,
1464 is_valid: bool,
1465}
1466
1467#[derive(Serialize, Deserialize)]
1468pub struct ClipboardSelection {
1469 pub len: usize,
1470 pub is_entire_line: bool,
1471 pub first_line_indent: u32,
1472}
1473
1474#[derive(Debug)]
1475pub(crate) struct NavigationData {
1476 cursor_anchor: Anchor,
1477 cursor_position: Point,
1478 scroll_anchor: ScrollAnchor,
1479 scroll_top_row: u32,
1480}
1481
1482enum GotoDefinitionKind {
1483 Symbol,
1484 Type,
1485 Implementation,
1486}
1487
1488#[derive(Debug, Clone)]
1489enum InlayHintRefreshReason {
1490 Toggle(bool),
1491 SettingsChange(InlayHintSettings),
1492 NewLinesShown,
1493 BufferEdited(HashSet<Arc<Language>>),
1494 RefreshRequested,
1495 ExcerptsRemoved(Vec<ExcerptId>),
1496}
1497
1498impl InlayHintRefreshReason {
1499 fn description(&self) -> &'static str {
1500 match self {
1501 Self::Toggle(_) => "toggle",
1502 Self::SettingsChange(_) => "settings change",
1503 Self::NewLinesShown => "new lines shown",
1504 Self::BufferEdited(_) => "buffer edited",
1505 Self::RefreshRequested => "refresh requested",
1506 Self::ExcerptsRemoved(_) => "excerpts removed",
1507 }
1508 }
1509}
1510
1511impl Editor {
1512 pub fn single_line(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::SingleLine, buffer, None, cx)
1516 }
1517
1518 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1519 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1520 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1521 Self::new(EditorMode::Full, buffer, None, cx)
1522 }
1523
1524 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1525 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1526 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1527 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1528 }
1529
1530 pub fn for_buffer(
1531 buffer: Model<Buffer>,
1532 project: Option<Model<Project>>,
1533 cx: &mut ViewContext<Self>,
1534 ) -> Self {
1535 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1536 Self::new(EditorMode::Full, buffer, project, cx)
1537 }
1538
1539 pub fn for_multibuffer(
1540 buffer: Model<MultiBuffer>,
1541 project: Option<Model<Project>>,
1542 cx: &mut ViewContext<Self>,
1543 ) -> Self {
1544 Self::new(EditorMode::Full, buffer, project, cx)
1545 }
1546
1547 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1548 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1549 self.display_map.update(cx, |display_map, cx| {
1550 let snapshot = display_map.snapshot(cx);
1551 clone.display_map.update(cx, |display_map, cx| {
1552 display_map.set_state(&snapshot, cx);
1553 });
1554 });
1555 clone.selections.clone_state(&self.selections);
1556 clone.scroll_manager.clone_state(&self.scroll_manager);
1557 clone.searchable = self.searchable;
1558 clone
1559 }
1560
1561 fn new(
1562 mode: EditorMode,
1563 buffer: Model<MultiBuffer>,
1564 project: Option<Model<Project>>,
1565 cx: &mut ViewContext<Self>,
1566 ) -> Self {
1567 let style = cx.text_style();
1568 let font_size = style.font_size.to_pixels(cx.rem_size());
1569 let display_map = cx.new_model(|cx| {
1570 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1571 });
1572
1573 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1574
1575 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1576
1577 let soft_wrap_mode_override =
1578 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1579
1580 let mut project_subscriptions = Vec::new();
1581 if mode == EditorMode::Full {
1582 if let Some(project) = project.as_ref() {
1583 if buffer.read(cx).is_singleton() {
1584 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1585 cx.emit(EditorEvent::TitleChanged);
1586 }));
1587 }
1588 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1589 if let project::Event::RefreshInlayHints = event {
1590 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1591 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1592 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1593 let focus_handle = editor.focus_handle(cx);
1594 if focus_handle.is_focused(cx) {
1595 let snapshot = buffer.read(cx).snapshot();
1596 for (range, snippet) in snippet_edits {
1597 let editor_range =
1598 language::range_from_lsp(*range).to_offset(&snapshot);
1599 editor
1600 .insert_snippet(&[editor_range], snippet.clone(), cx)
1601 .ok();
1602 }
1603 }
1604 }
1605 }
1606 }));
1607 let task_inventory = project.read(cx).task_inventory().clone();
1608 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1609 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1610 }));
1611 }
1612 }
1613
1614 let inlay_hint_settings = inlay_hint_settings(
1615 selections.newest_anchor().head(),
1616 &buffer.read(cx).snapshot(cx),
1617 cx,
1618 );
1619 let focus_handle = cx.focus_handle();
1620 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1621 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1622
1623 let mut this = Self {
1624 focus_handle,
1625 buffer: buffer.clone(),
1626 display_map: display_map.clone(),
1627 selections,
1628 scroll_manager: ScrollManager::new(cx),
1629 columnar_selection_tail: None,
1630 add_selections_state: None,
1631 select_next_state: None,
1632 select_prev_state: None,
1633 selection_history: Default::default(),
1634 autoclose_regions: Default::default(),
1635 snippet_stack: Default::default(),
1636 select_larger_syntax_node_stack: Vec::new(),
1637 ime_transaction: Default::default(),
1638 active_diagnostics: None,
1639 soft_wrap_mode_override,
1640 completion_provider: project.clone().map(|project| Box::new(project) as _),
1641 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1642 project,
1643 blink_manager: blink_manager.clone(),
1644 show_local_selections: true,
1645 mode,
1646 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1647 show_gutter: mode == EditorMode::Full,
1648 show_wrap_guides: None,
1649 placeholder_text: None,
1650 highlight_order: 0,
1651 highlighted_rows: HashMap::default(),
1652 background_highlights: Default::default(),
1653 scrollbar_marker_state: ScrollbarMarkerState::default(),
1654 nav_history: None,
1655 context_menu: RwLock::new(None),
1656 mouse_context_menu: None,
1657 completion_tasks: Default::default(),
1658 find_all_references_task_sources: Vec::new(),
1659 next_completion_id: 0,
1660 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1661 next_inlay_id: 0,
1662 available_code_actions: Default::default(),
1663 code_actions_task: Default::default(),
1664 document_highlights_task: Default::default(),
1665 pending_rename: Default::default(),
1666 searchable: true,
1667 cursor_shape: Default::default(),
1668 current_line_highlight: EditorSettings::get_global(cx).current_line_highlight,
1669 autoindent_mode: Some(AutoindentMode::EachLine),
1670 collapse_matches: false,
1671 workspace: None,
1672 keymap_context_layers: Default::default(),
1673 input_enabled: true,
1674 use_modal_editing: mode == EditorMode::Full,
1675 read_only: false,
1676 use_autoclose: true,
1677 auto_replace_emoji_shortcode: false,
1678 leader_peer_id: None,
1679 remote_id: None,
1680 hover_state: Default::default(),
1681 hovered_link_state: Default::default(),
1682 inline_completion_provider: None,
1683 active_inline_completion: None,
1684 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1685 expanded_hunks: ExpandedHunks::default(),
1686 gutter_hovered: false,
1687 pixel_position_of_newest_cursor: None,
1688 last_bounds: None,
1689 expect_bounds_change: None,
1690 gutter_dimensions: GutterDimensions::default(),
1691 style: None,
1692 show_cursor_names: false,
1693 hovered_cursors: Default::default(),
1694 editor_actions: Default::default(),
1695 vim_replace_map: Default::default(),
1696 show_inline_completions: mode == EditorMode::Full,
1697 custom_context_menu: None,
1698 show_git_blame_gutter: false,
1699 show_git_blame_inline: false,
1700 show_git_blame_inline_delay_task: None,
1701 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1702 blame: None,
1703 blame_subscription: None,
1704 tasks: Default::default(),
1705 _subscriptions: vec![
1706 cx.observe(&buffer, Self::on_buffer_changed),
1707 cx.subscribe(&buffer, Self::on_buffer_event),
1708 cx.observe(&display_map, Self::on_display_map_changed),
1709 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1710 cx.observe_global::<SettingsStore>(Self::settings_changed),
1711 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1712 cx.observe_window_activation(|editor, cx| {
1713 let active = cx.is_window_active();
1714 editor.blink_manager.update(cx, |blink_manager, cx| {
1715 if active {
1716 blink_manager.enable(cx);
1717 } else {
1718 blink_manager.show_cursor(cx);
1719 blink_manager.disable(cx);
1720 }
1721 });
1722 }),
1723 ],
1724 tasks_update_task: None,
1725 };
1726 this.tasks_update_task = Some(this.refresh_runnables(cx));
1727 this._subscriptions.extend(project_subscriptions);
1728
1729 this.end_selection(cx);
1730 this.scroll_manager.show_scrollbar(cx);
1731
1732 if mode == EditorMode::Full {
1733 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1734 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1735
1736 if this.git_blame_inline_enabled {
1737 this.git_blame_inline_enabled = true;
1738 this.start_git_blame_inline(false, cx);
1739 }
1740 }
1741
1742 this.report_editor_event("open", None, cx);
1743 this
1744 }
1745
1746 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1747 self.mouse_context_menu
1748 .as_ref()
1749 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1750 }
1751
1752 fn key_context(&self, cx: &AppContext) -> KeyContext {
1753 let mut key_context = KeyContext::new_with_defaults();
1754 key_context.add("Editor");
1755 let mode = match self.mode {
1756 EditorMode::SingleLine => "single_line",
1757 EditorMode::AutoHeight { .. } => "auto_height",
1758 EditorMode::Full => "full",
1759 };
1760 key_context.set("mode", mode);
1761 if self.pending_rename.is_some() {
1762 key_context.add("renaming");
1763 }
1764 if self.context_menu_visible() {
1765 match self.context_menu.read().as_ref() {
1766 Some(ContextMenu::Completions(_)) => {
1767 key_context.add("menu");
1768 key_context.add("showing_completions")
1769 }
1770 Some(ContextMenu::CodeActions(_)) => {
1771 key_context.add("menu");
1772 key_context.add("showing_code_actions")
1773 }
1774 None => {}
1775 }
1776 }
1777
1778 for layer in self.keymap_context_layers.values() {
1779 key_context.extend(layer);
1780 }
1781
1782 if let Some(extension) = self
1783 .buffer
1784 .read(cx)
1785 .as_singleton()
1786 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1787 {
1788 key_context.set("extension", extension.to_string());
1789 }
1790
1791 if self.has_active_inline_completion(cx) {
1792 key_context.add("copilot_suggestion");
1793 key_context.add("inline_completion");
1794 }
1795
1796 key_context
1797 }
1798
1799 pub fn new_file(
1800 workspace: &mut Workspace,
1801 _: &workspace::NewFile,
1802 cx: &mut ViewContext<Workspace>,
1803 ) {
1804 let project = workspace.project().clone();
1805 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1806
1807 cx.spawn(|workspace, mut cx| async move {
1808 let buffer = create.await?;
1809 workspace.update(&mut cx, |workspace, cx| {
1810 workspace.add_item_to_active_pane(
1811 Box::new(
1812 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1813 ),
1814 None,
1815 cx,
1816 )
1817 })
1818 })
1819 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1820 ErrorCode::RemoteUpgradeRequired => Some(format!(
1821 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1822 e.error_tag("required").unwrap_or("the latest version")
1823 )),
1824 _ => None,
1825 });
1826 }
1827
1828 pub fn new_file_in_direction(
1829 workspace: &mut Workspace,
1830 action: &workspace::NewFileInDirection,
1831 cx: &mut ViewContext<Workspace>,
1832 ) {
1833 let project = workspace.project().clone();
1834 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1835 let direction = action.0;
1836
1837 cx.spawn(|workspace, mut cx| async move {
1838 let buffer = create.await?;
1839 workspace.update(&mut cx, move |workspace, cx| {
1840 workspace.split_item(
1841 direction,
1842 Box::new(
1843 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1844 ),
1845 cx,
1846 )
1847 })?;
1848 anyhow::Ok(())
1849 })
1850 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1851 ErrorCode::RemoteUpgradeRequired => Some(format!(
1852 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1853 e.error_tag("required").unwrap_or("the latest version")
1854 )),
1855 _ => None,
1856 });
1857 }
1858
1859 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1860 self.buffer.read(cx).replica_id()
1861 }
1862
1863 pub fn leader_peer_id(&self) -> Option<PeerId> {
1864 self.leader_peer_id
1865 }
1866
1867 pub fn buffer(&self) -> &Model<MultiBuffer> {
1868 &self.buffer
1869 }
1870
1871 pub fn workspace(&self) -> Option<View<Workspace>> {
1872 self.workspace.as_ref()?.0.upgrade()
1873 }
1874
1875 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1876 self.buffer().read(cx).title(cx)
1877 }
1878
1879 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1880 EditorSnapshot {
1881 mode: self.mode,
1882 show_gutter: self.show_gutter,
1883 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1884 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1885 scroll_anchor: self.scroll_manager.anchor(),
1886 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1887 placeholder_text: self.placeholder_text.clone(),
1888 is_focused: self.focus_handle.is_focused(cx),
1889 current_line_highlight: self.current_line_highlight,
1890 gutter_hovered: self.gutter_hovered,
1891 }
1892 }
1893
1894 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1895 self.buffer.read(cx).language_at(point, cx)
1896 }
1897
1898 pub fn file_at<T: ToOffset>(
1899 &self,
1900 point: T,
1901 cx: &AppContext,
1902 ) -> Option<Arc<dyn language::File>> {
1903 self.buffer.read(cx).read(cx).file_at(point).cloned()
1904 }
1905
1906 pub fn active_excerpt(
1907 &self,
1908 cx: &AppContext,
1909 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1910 self.buffer
1911 .read(cx)
1912 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1913 }
1914
1915 pub fn mode(&self) -> EditorMode {
1916 self.mode
1917 }
1918
1919 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1920 self.collaboration_hub.as_deref()
1921 }
1922
1923 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1924 self.collaboration_hub = Some(hub);
1925 }
1926
1927 pub fn set_custom_context_menu(
1928 &mut self,
1929 f: impl 'static
1930 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1931 ) {
1932 self.custom_context_menu = Some(Box::new(f))
1933 }
1934
1935 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1936 self.completion_provider = Some(hub);
1937 }
1938
1939 pub fn set_inline_completion_provider<T>(
1940 &mut self,
1941 provider: Option<Model<T>>,
1942 cx: &mut ViewContext<Self>,
1943 ) where
1944 T: InlineCompletionProvider,
1945 {
1946 self.inline_completion_provider =
1947 provider.map(|provider| RegisteredInlineCompletionProvider {
1948 _subscription: cx.observe(&provider, |this, _, cx| {
1949 if this.focus_handle.is_focused(cx) {
1950 this.update_visible_inline_completion(cx);
1951 }
1952 }),
1953 provider: Arc::new(provider),
1954 });
1955 self.refresh_inline_completion(false, cx);
1956 }
1957
1958 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1959 self.placeholder_text.as_deref()
1960 }
1961
1962 pub fn set_placeholder_text(
1963 &mut self,
1964 placeholder_text: impl Into<Arc<str>>,
1965 cx: &mut ViewContext<Self>,
1966 ) {
1967 let placeholder_text = Some(placeholder_text.into());
1968 if self.placeholder_text != placeholder_text {
1969 self.placeholder_text = placeholder_text;
1970 cx.notify();
1971 }
1972 }
1973
1974 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1975 self.cursor_shape = cursor_shape;
1976 cx.notify();
1977 }
1978
1979 pub fn set_current_line_highlight(&mut self, current_line_highlight: CurrentLineHighlight) {
1980 self.current_line_highlight = current_line_highlight;
1981 }
1982
1983 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1984 self.collapse_matches = collapse_matches;
1985 }
1986
1987 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1988 if self.collapse_matches {
1989 return range.start..range.start;
1990 }
1991 range.clone()
1992 }
1993
1994 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1995 if self.display_map.read(cx).clip_at_line_ends != clip {
1996 self.display_map
1997 .update(cx, |map, _| map.clip_at_line_ends = clip);
1998 }
1999 }
2000
2001 pub fn set_keymap_context_layer<Tag: 'static>(
2002 &mut self,
2003 context: KeyContext,
2004 cx: &mut ViewContext<Self>,
2005 ) {
2006 self.keymap_context_layers
2007 .insert(TypeId::of::<Tag>(), context);
2008 cx.notify();
2009 }
2010
2011 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2012 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2013 cx.notify();
2014 }
2015
2016 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2017 self.input_enabled = input_enabled;
2018 }
2019
2020 pub fn set_autoindent(&mut self, autoindent: bool) {
2021 if autoindent {
2022 self.autoindent_mode = Some(AutoindentMode::EachLine);
2023 } else {
2024 self.autoindent_mode = None;
2025 }
2026 }
2027
2028 pub fn read_only(&self, cx: &AppContext) -> bool {
2029 self.read_only || self.buffer.read(cx).read_only()
2030 }
2031
2032 pub fn set_read_only(&mut self, read_only: bool) {
2033 self.read_only = read_only;
2034 }
2035
2036 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2037 self.use_autoclose = autoclose;
2038 }
2039
2040 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2041 self.auto_replace_emoji_shortcode = auto_replace;
2042 }
2043
2044 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2045 self.show_inline_completions = show_inline_completions;
2046 }
2047
2048 pub fn set_use_modal_editing(&mut self, to: bool) {
2049 self.use_modal_editing = to;
2050 }
2051
2052 pub fn use_modal_editing(&self) -> bool {
2053 self.use_modal_editing
2054 }
2055
2056 fn selections_did_change(
2057 &mut self,
2058 local: bool,
2059 old_cursor_position: &Anchor,
2060 show_completions: bool,
2061 cx: &mut ViewContext<Self>,
2062 ) {
2063 // Copy selections to primary selection buffer
2064 #[cfg(target_os = "linux")]
2065 if local {
2066 let selections = self.selections.all::<usize>(cx);
2067 let buffer_handle = self.buffer.read(cx).read(cx);
2068
2069 let mut text = String::new();
2070 for (index, selection) in selections.iter().enumerate() {
2071 let text_for_selection = buffer_handle
2072 .text_for_range(selection.start..selection.end)
2073 .collect::<String>();
2074
2075 text.push_str(&text_for_selection);
2076 if index != selections.len() - 1 {
2077 text.push('\n');
2078 }
2079 }
2080
2081 if !text.is_empty() {
2082 cx.write_to_primary(ClipboardItem::new(text));
2083 }
2084 }
2085
2086 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2087 self.buffer.update(cx, |buffer, cx| {
2088 buffer.set_active_selections(
2089 &self.selections.disjoint_anchors(),
2090 self.selections.line_mode,
2091 self.cursor_shape,
2092 cx,
2093 )
2094 });
2095 }
2096
2097 let display_map = self
2098 .display_map
2099 .update(cx, |display_map, cx| display_map.snapshot(cx));
2100 let buffer = &display_map.buffer_snapshot;
2101 self.add_selections_state = None;
2102 self.select_next_state = None;
2103 self.select_prev_state = None;
2104 self.select_larger_syntax_node_stack.clear();
2105 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2106 self.snippet_stack
2107 .invalidate(&self.selections.disjoint_anchors(), buffer);
2108 self.take_rename(false, cx);
2109
2110 let new_cursor_position = self.selections.newest_anchor().head();
2111
2112 self.push_to_nav_history(
2113 *old_cursor_position,
2114 Some(new_cursor_position.to_point(buffer)),
2115 cx,
2116 );
2117
2118 if local {
2119 let new_cursor_position = self.selections.newest_anchor().head();
2120 let mut context_menu = self.context_menu.write();
2121 let completion_menu = match context_menu.as_ref() {
2122 Some(ContextMenu::Completions(menu)) => Some(menu),
2123
2124 _ => {
2125 *context_menu = None;
2126 None
2127 }
2128 };
2129
2130 if let Some(completion_menu) = completion_menu {
2131 let cursor_position = new_cursor_position.to_offset(buffer);
2132 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2133 if kind == Some(CharKind::Word)
2134 && word_range.to_inclusive().contains(&cursor_position)
2135 {
2136 let mut completion_menu = completion_menu.clone();
2137 drop(context_menu);
2138
2139 let query = Self::completion_query(buffer, cursor_position);
2140 cx.spawn(move |this, mut cx| async move {
2141 completion_menu
2142 .filter(query.as_deref(), cx.background_executor().clone())
2143 .await;
2144
2145 this.update(&mut cx, |this, cx| {
2146 let mut context_menu = this.context_menu.write();
2147 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2148 return;
2149 };
2150
2151 if menu.id > completion_menu.id {
2152 return;
2153 }
2154
2155 *context_menu = Some(ContextMenu::Completions(completion_menu));
2156 drop(context_menu);
2157 cx.notify();
2158 })
2159 })
2160 .detach();
2161
2162 if show_completions {
2163 self.show_completions(&ShowCompletions, cx);
2164 }
2165 } else {
2166 drop(context_menu);
2167 self.hide_context_menu(cx);
2168 }
2169 } else {
2170 drop(context_menu);
2171 }
2172
2173 hide_hover(self, cx);
2174
2175 if old_cursor_position.to_display_point(&display_map).row()
2176 != new_cursor_position.to_display_point(&display_map).row()
2177 {
2178 self.available_code_actions.take();
2179 }
2180 self.refresh_code_actions(cx);
2181 self.refresh_document_highlights(cx);
2182 refresh_matching_bracket_highlights(self, cx);
2183 self.discard_inline_completion(false, cx);
2184 if self.git_blame_inline_enabled {
2185 self.start_inline_blame_timer(cx);
2186 }
2187 }
2188
2189 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2190 cx.emit(EditorEvent::SelectionsChanged { local });
2191
2192 if self.selections.disjoint_anchors().len() == 1 {
2193 cx.emit(SearchEvent::ActiveMatchChanged)
2194 }
2195
2196 cx.notify();
2197 }
2198
2199 pub fn change_selections<R>(
2200 &mut self,
2201 autoscroll: Option<Autoscroll>,
2202 cx: &mut ViewContext<Self>,
2203 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2204 ) -> R {
2205 self.change_selections_inner(autoscroll, true, cx, change)
2206 }
2207
2208 pub fn change_selections_inner<R>(
2209 &mut self,
2210 autoscroll: Option<Autoscroll>,
2211 request_completions: bool,
2212 cx: &mut ViewContext<Self>,
2213 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2214 ) -> R {
2215 let old_cursor_position = self.selections.newest_anchor().head();
2216 self.push_to_selection_history();
2217
2218 let (changed, result) = self.selections.change_with(cx, change);
2219
2220 if changed {
2221 if let Some(autoscroll) = autoscroll {
2222 self.request_autoscroll(autoscroll, cx);
2223 }
2224 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2225 }
2226
2227 result
2228 }
2229
2230 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2231 where
2232 I: IntoIterator<Item = (Range<S>, T)>,
2233 S: ToOffset,
2234 T: Into<Arc<str>>,
2235 {
2236 if self.read_only(cx) {
2237 return;
2238 }
2239
2240 self.buffer
2241 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2242 }
2243
2244 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2245 where
2246 I: IntoIterator<Item = (Range<S>, T)>,
2247 S: ToOffset,
2248 T: Into<Arc<str>>,
2249 {
2250 if self.read_only(cx) {
2251 return;
2252 }
2253
2254 self.buffer.update(cx, |buffer, cx| {
2255 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2256 });
2257 }
2258
2259 pub fn edit_with_block_indent<I, S, T>(
2260 &mut self,
2261 edits: I,
2262 original_indent_columns: Vec<u32>,
2263 cx: &mut ViewContext<Self>,
2264 ) where
2265 I: IntoIterator<Item = (Range<S>, T)>,
2266 S: ToOffset,
2267 T: Into<Arc<str>>,
2268 {
2269 if self.read_only(cx) {
2270 return;
2271 }
2272
2273 self.buffer.update(cx, |buffer, cx| {
2274 buffer.edit(
2275 edits,
2276 Some(AutoindentMode::Block {
2277 original_indent_columns,
2278 }),
2279 cx,
2280 )
2281 });
2282 }
2283
2284 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2285 self.hide_context_menu(cx);
2286
2287 match phase {
2288 SelectPhase::Begin {
2289 position,
2290 add,
2291 click_count,
2292 } => self.begin_selection(position, add, click_count, cx),
2293 SelectPhase::BeginColumnar {
2294 position,
2295 goal_column,
2296 reset,
2297 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2298 SelectPhase::Extend {
2299 position,
2300 click_count,
2301 } => self.extend_selection(position, click_count, cx),
2302 SelectPhase::Update {
2303 position,
2304 goal_column,
2305 scroll_delta,
2306 } => self.update_selection(position, goal_column, scroll_delta, cx),
2307 SelectPhase::End => self.end_selection(cx),
2308 }
2309 }
2310
2311 fn extend_selection(
2312 &mut self,
2313 position: DisplayPoint,
2314 click_count: usize,
2315 cx: &mut ViewContext<Self>,
2316 ) {
2317 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2318 let tail = self.selections.newest::<usize>(cx).tail();
2319 self.begin_selection(position, false, click_count, cx);
2320
2321 let position = position.to_offset(&display_map, Bias::Left);
2322 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2323
2324 let mut pending_selection = self
2325 .selections
2326 .pending_anchor()
2327 .expect("extend_selection not called with pending selection");
2328 if position >= tail {
2329 pending_selection.start = tail_anchor;
2330 } else {
2331 pending_selection.end = tail_anchor;
2332 pending_selection.reversed = true;
2333 }
2334
2335 let mut pending_mode = self.selections.pending_mode().unwrap();
2336 match &mut pending_mode {
2337 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2338 _ => {}
2339 }
2340
2341 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2342 s.set_pending(pending_selection, pending_mode)
2343 });
2344 }
2345
2346 fn begin_selection(
2347 &mut self,
2348 position: DisplayPoint,
2349 add: bool,
2350 click_count: usize,
2351 cx: &mut ViewContext<Self>,
2352 ) {
2353 if !self.focus_handle.is_focused(cx) {
2354 cx.focus(&self.focus_handle);
2355 }
2356
2357 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2358 let buffer = &display_map.buffer_snapshot;
2359 let newest_selection = self.selections.newest_anchor().clone();
2360 let position = display_map.clip_point(position, Bias::Left);
2361
2362 let start;
2363 let end;
2364 let mode;
2365 let auto_scroll;
2366 match click_count {
2367 1 => {
2368 start = buffer.anchor_before(position.to_point(&display_map));
2369 end = start;
2370 mode = SelectMode::Character;
2371 auto_scroll = true;
2372 }
2373 2 => {
2374 let range = movement::surrounding_word(&display_map, position);
2375 start = buffer.anchor_before(range.start.to_point(&display_map));
2376 end = buffer.anchor_before(range.end.to_point(&display_map));
2377 mode = SelectMode::Word(start..end);
2378 auto_scroll = true;
2379 }
2380 3 => {
2381 let position = display_map
2382 .clip_point(position, Bias::Left)
2383 .to_point(&display_map);
2384 let line_start = display_map.prev_line_boundary(position).0;
2385 let next_line_start = buffer.clip_point(
2386 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2387 Bias::Left,
2388 );
2389 start = buffer.anchor_before(line_start);
2390 end = buffer.anchor_before(next_line_start);
2391 mode = SelectMode::Line(start..end);
2392 auto_scroll = true;
2393 }
2394 _ => {
2395 start = buffer.anchor_before(0);
2396 end = buffer.anchor_before(buffer.len());
2397 mode = SelectMode::All;
2398 auto_scroll = false;
2399 }
2400 }
2401
2402 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2403 if !add {
2404 s.clear_disjoint();
2405 } else if click_count > 1 {
2406 s.delete(newest_selection.id)
2407 }
2408
2409 s.set_pending_anchor_range(start..end, mode);
2410 });
2411 }
2412
2413 fn begin_columnar_selection(
2414 &mut self,
2415 position: DisplayPoint,
2416 goal_column: u32,
2417 reset: bool,
2418 cx: &mut ViewContext<Self>,
2419 ) {
2420 if !self.focus_handle.is_focused(cx) {
2421 cx.focus(&self.focus_handle);
2422 }
2423
2424 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2425
2426 if reset {
2427 let pointer_position = display_map
2428 .buffer_snapshot
2429 .anchor_before(position.to_point(&display_map));
2430
2431 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2432 s.clear_disjoint();
2433 s.set_pending_anchor_range(
2434 pointer_position..pointer_position,
2435 SelectMode::Character,
2436 );
2437 });
2438 }
2439
2440 let tail = self.selections.newest::<Point>(cx).tail();
2441 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2442
2443 if !reset {
2444 self.select_columns(
2445 tail.to_display_point(&display_map),
2446 position,
2447 goal_column,
2448 &display_map,
2449 cx,
2450 );
2451 }
2452 }
2453
2454 fn update_selection(
2455 &mut self,
2456 position: DisplayPoint,
2457 goal_column: u32,
2458 scroll_delta: gpui::Point<f32>,
2459 cx: &mut ViewContext<Self>,
2460 ) {
2461 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2462
2463 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2464 let tail = tail.to_display_point(&display_map);
2465 self.select_columns(tail, position, goal_column, &display_map, cx);
2466 } else if let Some(mut pending) = self.selections.pending_anchor() {
2467 let buffer = self.buffer.read(cx).snapshot(cx);
2468 let head;
2469 let tail;
2470 let mode = self.selections.pending_mode().unwrap();
2471 match &mode {
2472 SelectMode::Character => {
2473 head = position.to_point(&display_map);
2474 tail = pending.tail().to_point(&buffer);
2475 }
2476 SelectMode::Word(original_range) => {
2477 let original_display_range = original_range.start.to_display_point(&display_map)
2478 ..original_range.end.to_display_point(&display_map);
2479 let original_buffer_range = original_display_range.start.to_point(&display_map)
2480 ..original_display_range.end.to_point(&display_map);
2481 if movement::is_inside_word(&display_map, position)
2482 || original_display_range.contains(&position)
2483 {
2484 let word_range = movement::surrounding_word(&display_map, position);
2485 if word_range.start < original_display_range.start {
2486 head = word_range.start.to_point(&display_map);
2487 } else {
2488 head = word_range.end.to_point(&display_map);
2489 }
2490 } else {
2491 head = position.to_point(&display_map);
2492 }
2493
2494 if head <= original_buffer_range.start {
2495 tail = original_buffer_range.end;
2496 } else {
2497 tail = original_buffer_range.start;
2498 }
2499 }
2500 SelectMode::Line(original_range) => {
2501 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2502
2503 let position = display_map
2504 .clip_point(position, Bias::Left)
2505 .to_point(&display_map);
2506 let line_start = display_map.prev_line_boundary(position).0;
2507 let next_line_start = buffer.clip_point(
2508 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2509 Bias::Left,
2510 );
2511
2512 if line_start < original_range.start {
2513 head = line_start
2514 } else {
2515 head = next_line_start
2516 }
2517
2518 if head <= original_range.start {
2519 tail = original_range.end;
2520 } else {
2521 tail = original_range.start;
2522 }
2523 }
2524 SelectMode::All => {
2525 return;
2526 }
2527 };
2528
2529 if head < tail {
2530 pending.start = buffer.anchor_before(head);
2531 pending.end = buffer.anchor_before(tail);
2532 pending.reversed = true;
2533 } else {
2534 pending.start = buffer.anchor_before(tail);
2535 pending.end = buffer.anchor_before(head);
2536 pending.reversed = false;
2537 }
2538
2539 self.change_selections(None, cx, |s| {
2540 s.set_pending(pending, mode);
2541 });
2542 } else {
2543 log::error!("update_selection dispatched with no pending selection");
2544 return;
2545 }
2546
2547 self.apply_scroll_delta(scroll_delta, cx);
2548 cx.notify();
2549 }
2550
2551 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2552 self.columnar_selection_tail.take();
2553 if self.selections.pending_anchor().is_some() {
2554 let selections = self.selections.all::<usize>(cx);
2555 self.change_selections(None, cx, |s| {
2556 s.select(selections);
2557 s.clear_pending();
2558 });
2559 }
2560 }
2561
2562 fn select_columns(
2563 &mut self,
2564 tail: DisplayPoint,
2565 head: DisplayPoint,
2566 goal_column: u32,
2567 display_map: &DisplaySnapshot,
2568 cx: &mut ViewContext<Self>,
2569 ) {
2570 let start_row = cmp::min(tail.row(), head.row());
2571 let end_row = cmp::max(tail.row(), head.row());
2572 let start_column = cmp::min(tail.column(), goal_column);
2573 let end_column = cmp::max(tail.column(), goal_column);
2574 let reversed = start_column < tail.column();
2575
2576 let selection_ranges = (start_row.0..=end_row.0)
2577 .map(DisplayRow)
2578 .filter_map(|row| {
2579 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2580 let start = display_map
2581 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2582 .to_point(display_map);
2583 let end = display_map
2584 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2585 .to_point(display_map);
2586 if reversed {
2587 Some(end..start)
2588 } else {
2589 Some(start..end)
2590 }
2591 } else {
2592 None
2593 }
2594 })
2595 .collect::<Vec<_>>();
2596
2597 self.change_selections(None, cx, |s| {
2598 s.select_ranges(selection_ranges);
2599 });
2600 cx.notify();
2601 }
2602
2603 pub fn has_pending_nonempty_selection(&self) -> bool {
2604 let pending_nonempty_selection = match self.selections.pending_anchor() {
2605 Some(Selection { start, end, .. }) => start != end,
2606 None => false,
2607 };
2608 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2609 }
2610
2611 pub fn has_pending_selection(&self) -> bool {
2612 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2613 }
2614
2615 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2616 self.clear_expanded_diff_hunks(cx);
2617 if self.dismiss_menus_and_popups(true, cx) {
2618 return;
2619 }
2620
2621 if self.mode == EditorMode::Full {
2622 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2623 return;
2624 }
2625 }
2626
2627 cx.propagate();
2628 }
2629
2630 pub fn dismiss_menus_and_popups(
2631 &mut self,
2632 should_report_inline_completion_event: bool,
2633 cx: &mut ViewContext<Self>,
2634 ) -> bool {
2635 if self.take_rename(false, cx).is_some() {
2636 return true;
2637 }
2638
2639 if hide_hover(self, cx) {
2640 return true;
2641 }
2642
2643 if self.hide_context_menu(cx).is_some() {
2644 return true;
2645 }
2646
2647 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2648 return true;
2649 }
2650
2651 if self.snippet_stack.pop().is_some() {
2652 return true;
2653 }
2654
2655 if self.mode == EditorMode::Full {
2656 if self.active_diagnostics.is_some() {
2657 self.dismiss_diagnostics(cx);
2658 return true;
2659 }
2660 }
2661
2662 false
2663 }
2664
2665 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2666 let text: Arc<str> = text.into();
2667
2668 if self.read_only(cx) {
2669 return;
2670 }
2671
2672 let selections = self.selections.all_adjusted(cx);
2673 let mut brace_inserted = false;
2674 let mut edits = Vec::new();
2675 let mut new_selections = Vec::with_capacity(selections.len());
2676 let mut new_autoclose_regions = Vec::new();
2677 let snapshot = self.buffer.read(cx).read(cx);
2678
2679 for (selection, autoclose_region) in
2680 self.selections_with_autoclose_regions(selections, &snapshot)
2681 {
2682 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2683 // Determine if the inserted text matches the opening or closing
2684 // bracket of any of this language's bracket pairs.
2685 let mut bracket_pair = None;
2686 let mut is_bracket_pair_start = false;
2687 let mut is_bracket_pair_end = false;
2688 if !text.is_empty() {
2689 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2690 // and they are removing the character that triggered IME popup.
2691 for (pair, enabled) in scope.brackets() {
2692 if !pair.close {
2693 continue;
2694 }
2695
2696 if enabled && pair.start.ends_with(text.as_ref()) {
2697 bracket_pair = Some(pair.clone());
2698 is_bracket_pair_start = true;
2699 break;
2700 }
2701 if pair.end.as_str() == text.as_ref() {
2702 bracket_pair = Some(pair.clone());
2703 is_bracket_pair_end = true;
2704 break;
2705 }
2706 }
2707 }
2708
2709 if let Some(bracket_pair) = bracket_pair {
2710 if selection.is_empty() {
2711 if is_bracket_pair_start {
2712 let prefix_len = bracket_pair.start.len() - text.len();
2713
2714 // If the inserted text is a suffix of an opening bracket and the
2715 // selection is preceded by the rest of the opening bracket, then
2716 // insert the closing bracket.
2717 let following_text_allows_autoclose = snapshot
2718 .chars_at(selection.start)
2719 .next()
2720 .map_or(true, |c| scope.should_autoclose_before(c));
2721 let preceding_text_matches_prefix = prefix_len == 0
2722 || (selection.start.column >= (prefix_len as u32)
2723 && snapshot.contains_str_at(
2724 Point::new(
2725 selection.start.row,
2726 selection.start.column - (prefix_len as u32),
2727 ),
2728 &bracket_pair.start[..prefix_len],
2729 ));
2730 let autoclose = self.use_autoclose
2731 && snapshot.settings_at(selection.start, cx).use_autoclose;
2732 if autoclose
2733 && following_text_allows_autoclose
2734 && preceding_text_matches_prefix
2735 {
2736 let anchor = snapshot.anchor_before(selection.end);
2737 new_selections.push((selection.map(|_| anchor), text.len()));
2738 new_autoclose_regions.push((
2739 anchor,
2740 text.len(),
2741 selection.id,
2742 bracket_pair.clone(),
2743 ));
2744 edits.push((
2745 selection.range(),
2746 format!("{}{}", text, bracket_pair.end).into(),
2747 ));
2748 brace_inserted = true;
2749 continue;
2750 }
2751 }
2752
2753 if let Some(region) = autoclose_region {
2754 // If the selection is followed by an auto-inserted closing bracket,
2755 // then don't insert that closing bracket again; just move the selection
2756 // past the closing bracket.
2757 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2758 && text.as_ref() == region.pair.end.as_str();
2759 if should_skip {
2760 let anchor = snapshot.anchor_after(selection.end);
2761 new_selections
2762 .push((selection.map(|_| anchor), region.pair.end.len()));
2763 continue;
2764 }
2765 }
2766
2767 let always_treat_brackets_as_autoclosed = snapshot
2768 .settings_at(selection.start, cx)
2769 .always_treat_brackets_as_autoclosed;
2770 if always_treat_brackets_as_autoclosed
2771 && is_bracket_pair_end
2772 && snapshot.contains_str_at(selection.end, text.as_ref())
2773 {
2774 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2775 // and the inserted text is a closing bracket and the selection is followed
2776 // by the closing bracket then move the selection past the closing bracket.
2777 let anchor = snapshot.anchor_after(selection.end);
2778 new_selections.push((selection.map(|_| anchor), text.len()));
2779 continue;
2780 }
2781 }
2782 // If an opening bracket is 1 character long and is typed while
2783 // text is selected, then surround that text with the bracket pair.
2784 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2785 edits.push((selection.start..selection.start, text.clone()));
2786 edits.push((
2787 selection.end..selection.end,
2788 bracket_pair.end.as_str().into(),
2789 ));
2790 brace_inserted = true;
2791 new_selections.push((
2792 Selection {
2793 id: selection.id,
2794 start: snapshot.anchor_after(selection.start),
2795 end: snapshot.anchor_before(selection.end),
2796 reversed: selection.reversed,
2797 goal: selection.goal,
2798 },
2799 0,
2800 ));
2801 continue;
2802 }
2803 }
2804 }
2805
2806 if self.auto_replace_emoji_shortcode
2807 && selection.is_empty()
2808 && text.as_ref().ends_with(':')
2809 {
2810 if let Some(possible_emoji_short_code) =
2811 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2812 {
2813 if !possible_emoji_short_code.is_empty() {
2814 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2815 let emoji_shortcode_start = Point::new(
2816 selection.start.row,
2817 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2818 );
2819
2820 // Remove shortcode from buffer
2821 edits.push((
2822 emoji_shortcode_start..selection.start,
2823 "".to_string().into(),
2824 ));
2825 new_selections.push((
2826 Selection {
2827 id: selection.id,
2828 start: snapshot.anchor_after(emoji_shortcode_start),
2829 end: snapshot.anchor_before(selection.start),
2830 reversed: selection.reversed,
2831 goal: selection.goal,
2832 },
2833 0,
2834 ));
2835
2836 // Insert emoji
2837 let selection_start_anchor = snapshot.anchor_after(selection.start);
2838 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2839 edits.push((selection.start..selection.end, emoji.to_string().into()));
2840
2841 continue;
2842 }
2843 }
2844 }
2845 }
2846
2847 // If not handling any auto-close operation, then just replace the selected
2848 // text with the given input and move the selection to the end of the
2849 // newly inserted text.
2850 let anchor = snapshot.anchor_after(selection.end);
2851 new_selections.push((selection.map(|_| anchor), 0));
2852 edits.push((selection.start..selection.end, text.clone()));
2853 }
2854
2855 drop(snapshot);
2856 self.transact(cx, |this, cx| {
2857 this.buffer.update(cx, |buffer, cx| {
2858 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2859 });
2860
2861 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2862 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2863 let snapshot = this.buffer.read(cx).read(cx);
2864 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2865 .zip(new_selection_deltas)
2866 .map(|(selection, delta)| Selection {
2867 id: selection.id,
2868 start: selection.start + delta,
2869 end: selection.end + delta,
2870 reversed: selection.reversed,
2871 goal: SelectionGoal::None,
2872 })
2873 .collect::<Vec<_>>();
2874
2875 let mut i = 0;
2876 for (position, delta, selection_id, pair) in new_autoclose_regions {
2877 let position = position.to_offset(&snapshot) + delta;
2878 let start = snapshot.anchor_before(position);
2879 let end = snapshot.anchor_after(position);
2880 while let Some(existing_state) = this.autoclose_regions.get(i) {
2881 match existing_state.range.start.cmp(&start, &snapshot) {
2882 Ordering::Less => i += 1,
2883 Ordering::Greater => break,
2884 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2885 Ordering::Less => i += 1,
2886 Ordering::Equal => break,
2887 Ordering::Greater => break,
2888 },
2889 }
2890 }
2891 this.autoclose_regions.insert(
2892 i,
2893 AutocloseRegion {
2894 selection_id,
2895 range: start..end,
2896 pair,
2897 },
2898 );
2899 }
2900
2901 drop(snapshot);
2902 let had_active_inline_completion = this.has_active_inline_completion(cx);
2903 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2904 s.select(new_selections)
2905 });
2906
2907 if brace_inserted {
2908 // If we inserted a brace while composing text (i.e. typing `"` on a
2909 // Brazilian keyboard), exit the composing state because most likely
2910 // the user wanted to surround the selection.
2911 this.unmark_text(cx);
2912 } else if EditorSettings::get_global(cx).use_on_type_format {
2913 if let Some(on_type_format_task) =
2914 this.trigger_on_type_formatting(text.to_string(), cx)
2915 {
2916 on_type_format_task.detach_and_log_err(cx);
2917 }
2918 }
2919
2920 let trigger_in_words = !had_active_inline_completion;
2921 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2922 this.refresh_inline_completion(true, cx);
2923 });
2924 }
2925
2926 fn find_possible_emoji_shortcode_at_position(
2927 snapshot: &MultiBufferSnapshot,
2928 position: Point,
2929 ) -> Option<String> {
2930 let mut chars = Vec::new();
2931 let mut found_colon = false;
2932 for char in snapshot.reversed_chars_at(position).take(100) {
2933 // Found a possible emoji shortcode in the middle of the buffer
2934 if found_colon {
2935 if char.is_whitespace() {
2936 chars.reverse();
2937 return Some(chars.iter().collect());
2938 }
2939 // If the previous character is not a whitespace, we are in the middle of a word
2940 // and we only want to complete the shortcode if the word is made up of other emojis
2941 let mut containing_word = String::new();
2942 for ch in snapshot
2943 .reversed_chars_at(position)
2944 .skip(chars.len() + 1)
2945 .take(100)
2946 {
2947 if ch.is_whitespace() {
2948 break;
2949 }
2950 containing_word.push(ch);
2951 }
2952 let containing_word = containing_word.chars().rev().collect::<String>();
2953 if util::word_consists_of_emojis(containing_word.as_str()) {
2954 chars.reverse();
2955 return Some(chars.iter().collect());
2956 }
2957 }
2958
2959 if char.is_whitespace() || !char.is_ascii() {
2960 return None;
2961 }
2962 if char == ':' {
2963 found_colon = true;
2964 } else {
2965 chars.push(char);
2966 }
2967 }
2968 // Found a possible emoji shortcode at the beginning of the buffer
2969 chars.reverse();
2970 Some(chars.iter().collect())
2971 }
2972
2973 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2974 self.transact(cx, |this, cx| {
2975 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2976 let selections = this.selections.all::<usize>(cx);
2977 let multi_buffer = this.buffer.read(cx);
2978 let buffer = multi_buffer.snapshot(cx);
2979 selections
2980 .iter()
2981 .map(|selection| {
2982 let start_point = selection.start.to_point(&buffer);
2983 let mut indent =
2984 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2985 indent.len = cmp::min(indent.len, start_point.column);
2986 let start = selection.start;
2987 let end = selection.end;
2988 let selection_is_empty = start == end;
2989 let language_scope = buffer.language_scope_at(start);
2990 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2991 &language_scope
2992 {
2993 let leading_whitespace_len = buffer
2994 .reversed_chars_at(start)
2995 .take_while(|c| c.is_whitespace() && *c != '\n')
2996 .map(|c| c.len_utf8())
2997 .sum::<usize>();
2998
2999 let trailing_whitespace_len = buffer
3000 .chars_at(end)
3001 .take_while(|c| c.is_whitespace() && *c != '\n')
3002 .map(|c| c.len_utf8())
3003 .sum::<usize>();
3004
3005 let insert_extra_newline =
3006 language.brackets().any(|(pair, enabled)| {
3007 let pair_start = pair.start.trim_end();
3008 let pair_end = pair.end.trim_start();
3009
3010 enabled
3011 && pair.newline
3012 && buffer.contains_str_at(
3013 end + trailing_whitespace_len,
3014 pair_end,
3015 )
3016 && buffer.contains_str_at(
3017 (start - leading_whitespace_len)
3018 .saturating_sub(pair_start.len()),
3019 pair_start,
3020 )
3021 });
3022
3023 // Comment extension on newline is allowed only for cursor selections
3024 let comment_delimiter = maybe!({
3025 if !selection_is_empty {
3026 return None;
3027 }
3028
3029 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3030 return None;
3031 }
3032
3033 let delimiters = language.line_comment_prefixes();
3034 let max_len_of_delimiter =
3035 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3036 let (snapshot, range) =
3037 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3038
3039 let mut index_of_first_non_whitespace = 0;
3040 let comment_candidate = snapshot
3041 .chars_for_range(range)
3042 .skip_while(|c| {
3043 let should_skip = c.is_whitespace();
3044 if should_skip {
3045 index_of_first_non_whitespace += 1;
3046 }
3047 should_skip
3048 })
3049 .take(max_len_of_delimiter)
3050 .collect::<String>();
3051 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3052 comment_candidate.starts_with(comment_prefix.as_ref())
3053 })?;
3054 let cursor_is_placed_after_comment_marker =
3055 index_of_first_non_whitespace + comment_prefix.len()
3056 <= start_point.column as usize;
3057 if cursor_is_placed_after_comment_marker {
3058 Some(comment_prefix.clone())
3059 } else {
3060 None
3061 }
3062 });
3063 (comment_delimiter, insert_extra_newline)
3064 } else {
3065 (None, false)
3066 };
3067
3068 let capacity_for_delimiter = comment_delimiter
3069 .as_deref()
3070 .map(str::len)
3071 .unwrap_or_default();
3072 let mut new_text =
3073 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3074 new_text.push_str("\n");
3075 new_text.extend(indent.chars());
3076 if let Some(delimiter) = &comment_delimiter {
3077 new_text.push_str(&delimiter);
3078 }
3079 if insert_extra_newline {
3080 new_text = new_text.repeat(2);
3081 }
3082
3083 let anchor = buffer.anchor_after(end);
3084 let new_selection = selection.map(|_| anchor);
3085 (
3086 (start..end, new_text),
3087 (insert_extra_newline, new_selection),
3088 )
3089 })
3090 .unzip()
3091 };
3092
3093 this.edit_with_autoindent(edits, cx);
3094 let buffer = this.buffer.read(cx).snapshot(cx);
3095 let new_selections = selection_fixup_info
3096 .into_iter()
3097 .map(|(extra_newline_inserted, new_selection)| {
3098 let mut cursor = new_selection.end.to_point(&buffer);
3099 if extra_newline_inserted {
3100 cursor.row -= 1;
3101 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3102 }
3103 new_selection.map(|_| cursor)
3104 })
3105 .collect();
3106
3107 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3108 this.refresh_inline_completion(true, cx);
3109 });
3110 }
3111
3112 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3113 let buffer = self.buffer.read(cx);
3114 let snapshot = buffer.snapshot(cx);
3115
3116 let mut edits = Vec::new();
3117 let mut rows = Vec::new();
3118
3119 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3120 let cursor = selection.head();
3121 let row = cursor.row;
3122
3123 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3124
3125 let newline = "\n".to_string();
3126 edits.push((start_of_line..start_of_line, newline));
3127
3128 rows.push(row + rows_inserted as u32);
3129 }
3130
3131 self.transact(cx, |editor, cx| {
3132 editor.edit(edits, cx);
3133
3134 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3135 let mut index = 0;
3136 s.move_cursors_with(|map, _, _| {
3137 let row = rows[index];
3138 index += 1;
3139
3140 let point = Point::new(row, 0);
3141 let boundary = map.next_line_boundary(point).1;
3142 let clipped = map.clip_point(boundary, Bias::Left);
3143
3144 (clipped, SelectionGoal::None)
3145 });
3146 });
3147
3148 let mut indent_edits = Vec::new();
3149 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3150 for row in rows {
3151 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3152 for (row, indent) in indents {
3153 if indent.len == 0 {
3154 continue;
3155 }
3156
3157 let text = match indent.kind {
3158 IndentKind::Space => " ".repeat(indent.len as usize),
3159 IndentKind::Tab => "\t".repeat(indent.len as usize),
3160 };
3161 let point = Point::new(row.0, 0);
3162 indent_edits.push((point..point, text));
3163 }
3164 }
3165 editor.edit(indent_edits, cx);
3166 });
3167 }
3168
3169 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3170 let buffer = self.buffer.read(cx);
3171 let snapshot = buffer.snapshot(cx);
3172
3173 let mut edits = Vec::new();
3174 let mut rows = Vec::new();
3175 let mut rows_inserted = 0;
3176
3177 for selection in self.selections.all_adjusted(cx) {
3178 let cursor = selection.head();
3179 let row = cursor.row;
3180
3181 let point = Point::new(row + 1, 0);
3182 let start_of_line = snapshot.clip_point(point, Bias::Left);
3183
3184 let newline = "\n".to_string();
3185 edits.push((start_of_line..start_of_line, newline));
3186
3187 rows_inserted += 1;
3188 rows.push(row + rows_inserted);
3189 }
3190
3191 self.transact(cx, |editor, cx| {
3192 editor.edit(edits, cx);
3193
3194 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3195 let mut index = 0;
3196 s.move_cursors_with(|map, _, _| {
3197 let row = rows[index];
3198 index += 1;
3199
3200 let point = Point::new(row, 0);
3201 let boundary = map.next_line_boundary(point).1;
3202 let clipped = map.clip_point(boundary, Bias::Left);
3203
3204 (clipped, SelectionGoal::None)
3205 });
3206 });
3207
3208 let mut indent_edits = Vec::new();
3209 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3210 for row in rows {
3211 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3212 for (row, indent) in indents {
3213 if indent.len == 0 {
3214 continue;
3215 }
3216
3217 let text = match indent.kind {
3218 IndentKind::Space => " ".repeat(indent.len as usize),
3219 IndentKind::Tab => "\t".repeat(indent.len as usize),
3220 };
3221 let point = Point::new(row.0, 0);
3222 indent_edits.push((point..point, text));
3223 }
3224 }
3225 editor.edit(indent_edits, cx);
3226 });
3227 }
3228
3229 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3230 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3231 original_indent_columns: Vec::new(),
3232 });
3233 self.insert_with_autoindent_mode(text, autoindent, cx);
3234 }
3235
3236 fn insert_with_autoindent_mode(
3237 &mut self,
3238 text: &str,
3239 autoindent_mode: Option<AutoindentMode>,
3240 cx: &mut ViewContext<Self>,
3241 ) {
3242 if self.read_only(cx) {
3243 return;
3244 }
3245
3246 let text: Arc<str> = text.into();
3247 self.transact(cx, |this, cx| {
3248 let old_selections = this.selections.all_adjusted(cx);
3249 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3250 let anchors = {
3251 let snapshot = buffer.read(cx);
3252 old_selections
3253 .iter()
3254 .map(|s| {
3255 let anchor = snapshot.anchor_after(s.head());
3256 s.map(|_| anchor)
3257 })
3258 .collect::<Vec<_>>()
3259 };
3260 buffer.edit(
3261 old_selections
3262 .iter()
3263 .map(|s| (s.start..s.end, text.clone())),
3264 autoindent_mode,
3265 cx,
3266 );
3267 anchors
3268 });
3269
3270 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3271 s.select_anchors(selection_anchors);
3272 })
3273 });
3274 }
3275
3276 fn trigger_completion_on_input(
3277 &mut self,
3278 text: &str,
3279 trigger_in_words: bool,
3280 cx: &mut ViewContext<Self>,
3281 ) {
3282 if !EditorSettings::get_global(cx).show_completions_on_input {
3283 return;
3284 }
3285
3286 let selection = self.selections.newest_anchor();
3287 if self
3288 .buffer
3289 .read(cx)
3290 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3291 {
3292 self.show_completions(&ShowCompletions, cx);
3293 } else {
3294 self.hide_context_menu(cx);
3295 }
3296 }
3297
3298 /// If any empty selections is touching the start of its innermost containing autoclose
3299 /// region, expand it to select the brackets.
3300 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3301 let selections = self.selections.all::<usize>(cx);
3302 let buffer = self.buffer.read(cx).read(cx);
3303 let new_selections = self
3304 .selections_with_autoclose_regions(selections, &buffer)
3305 .map(|(mut selection, region)| {
3306 if !selection.is_empty() {
3307 return selection;
3308 }
3309
3310 if let Some(region) = region {
3311 let mut range = region.range.to_offset(&buffer);
3312 if selection.start == range.start && range.start >= region.pair.start.len() {
3313 range.start -= region.pair.start.len();
3314 if buffer.contains_str_at(range.start, ®ion.pair.start)
3315 && buffer.contains_str_at(range.end, ®ion.pair.end)
3316 {
3317 range.end += region.pair.end.len();
3318 selection.start = range.start;
3319 selection.end = range.end;
3320
3321 return selection;
3322 }
3323 }
3324 }
3325
3326 let always_treat_brackets_as_autoclosed = buffer
3327 .settings_at(selection.start, cx)
3328 .always_treat_brackets_as_autoclosed;
3329
3330 if !always_treat_brackets_as_autoclosed {
3331 return selection;
3332 }
3333
3334 if let Some(scope) = buffer.language_scope_at(selection.start) {
3335 for (pair, enabled) in scope.brackets() {
3336 if !enabled || !pair.close {
3337 continue;
3338 }
3339
3340 if buffer.contains_str_at(selection.start, &pair.end) {
3341 let pair_start_len = pair.start.len();
3342 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3343 {
3344 selection.start -= pair_start_len;
3345 selection.end += pair.end.len();
3346
3347 return selection;
3348 }
3349 }
3350 }
3351 }
3352
3353 selection
3354 })
3355 .collect();
3356
3357 drop(buffer);
3358 self.change_selections(None, cx, |selections| selections.select(new_selections));
3359 }
3360
3361 /// Iterate the given selections, and for each one, find the smallest surrounding
3362 /// autoclose region. This uses the ordering of the selections and the autoclose
3363 /// regions to avoid repeated comparisons.
3364 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3365 &'a self,
3366 selections: impl IntoIterator<Item = Selection<D>>,
3367 buffer: &'a MultiBufferSnapshot,
3368 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3369 let mut i = 0;
3370 let mut regions = self.autoclose_regions.as_slice();
3371 selections.into_iter().map(move |selection| {
3372 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3373
3374 let mut enclosing = None;
3375 while let Some(pair_state) = regions.get(i) {
3376 if pair_state.range.end.to_offset(buffer) < range.start {
3377 regions = ®ions[i + 1..];
3378 i = 0;
3379 } else if pair_state.range.start.to_offset(buffer) > range.end {
3380 break;
3381 } else {
3382 if pair_state.selection_id == selection.id {
3383 enclosing = Some(pair_state);
3384 }
3385 i += 1;
3386 }
3387 }
3388
3389 (selection.clone(), enclosing)
3390 })
3391 }
3392
3393 /// Remove any autoclose regions that no longer contain their selection.
3394 fn invalidate_autoclose_regions(
3395 &mut self,
3396 mut selections: &[Selection<Anchor>],
3397 buffer: &MultiBufferSnapshot,
3398 ) {
3399 self.autoclose_regions.retain(|state| {
3400 let mut i = 0;
3401 while let Some(selection) = selections.get(i) {
3402 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3403 selections = &selections[1..];
3404 continue;
3405 }
3406 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3407 break;
3408 }
3409 if selection.id == state.selection_id {
3410 return true;
3411 } else {
3412 i += 1;
3413 }
3414 }
3415 false
3416 });
3417 }
3418
3419 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3420 let offset = position.to_offset(buffer);
3421 let (word_range, kind) = buffer.surrounding_word(offset);
3422 if offset > word_range.start && kind == Some(CharKind::Word) {
3423 Some(
3424 buffer
3425 .text_for_range(word_range.start..offset)
3426 .collect::<String>(),
3427 )
3428 } else {
3429 None
3430 }
3431 }
3432
3433 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3434 self.refresh_inlay_hints(
3435 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3436 cx,
3437 );
3438 }
3439
3440 pub fn inlay_hints_enabled(&self) -> bool {
3441 self.inlay_hint_cache.enabled
3442 }
3443
3444 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3445 if self.project.is_none() || self.mode != EditorMode::Full {
3446 return;
3447 }
3448
3449 let reason_description = reason.description();
3450 let ignore_debounce = matches!(
3451 reason,
3452 InlayHintRefreshReason::SettingsChange(_)
3453 | InlayHintRefreshReason::Toggle(_)
3454 | InlayHintRefreshReason::ExcerptsRemoved(_)
3455 );
3456 let (invalidate_cache, required_languages) = match reason {
3457 InlayHintRefreshReason::Toggle(enabled) => {
3458 self.inlay_hint_cache.enabled = enabled;
3459 if enabled {
3460 (InvalidationStrategy::RefreshRequested, None)
3461 } else {
3462 self.inlay_hint_cache.clear();
3463 self.splice_inlays(
3464 self.visible_inlay_hints(cx)
3465 .iter()
3466 .map(|inlay| inlay.id)
3467 .collect(),
3468 Vec::new(),
3469 cx,
3470 );
3471 return;
3472 }
3473 }
3474 InlayHintRefreshReason::SettingsChange(new_settings) => {
3475 match self.inlay_hint_cache.update_settings(
3476 &self.buffer,
3477 new_settings,
3478 self.visible_inlay_hints(cx),
3479 cx,
3480 ) {
3481 ControlFlow::Break(Some(InlaySplice {
3482 to_remove,
3483 to_insert,
3484 })) => {
3485 self.splice_inlays(to_remove, to_insert, cx);
3486 return;
3487 }
3488 ControlFlow::Break(None) => return,
3489 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3490 }
3491 }
3492 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3493 if let Some(InlaySplice {
3494 to_remove,
3495 to_insert,
3496 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3497 {
3498 self.splice_inlays(to_remove, to_insert, cx);
3499 }
3500 return;
3501 }
3502 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3503 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3504 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3505 }
3506 InlayHintRefreshReason::RefreshRequested => {
3507 (InvalidationStrategy::RefreshRequested, None)
3508 }
3509 };
3510
3511 if let Some(InlaySplice {
3512 to_remove,
3513 to_insert,
3514 }) = self.inlay_hint_cache.spawn_hint_refresh(
3515 reason_description,
3516 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3517 invalidate_cache,
3518 ignore_debounce,
3519 cx,
3520 ) {
3521 self.splice_inlays(to_remove, to_insert, cx);
3522 }
3523 }
3524
3525 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3526 self.display_map
3527 .read(cx)
3528 .current_inlays()
3529 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3530 .cloned()
3531 .collect()
3532 }
3533
3534 pub fn excerpts_for_inlay_hints_query(
3535 &self,
3536 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3537 cx: &mut ViewContext<Editor>,
3538 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3539 let Some(project) = self.project.as_ref() else {
3540 return HashMap::default();
3541 };
3542 let project = project.read(cx);
3543 let multi_buffer = self.buffer().read(cx);
3544 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3545 let multi_buffer_visible_start = self
3546 .scroll_manager
3547 .anchor()
3548 .anchor
3549 .to_point(&multi_buffer_snapshot);
3550 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3551 multi_buffer_visible_start
3552 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3553 Bias::Left,
3554 );
3555 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3556 multi_buffer
3557 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3558 .into_iter()
3559 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3560 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3561 let buffer = buffer_handle.read(cx);
3562 let buffer_file = project::File::from_dyn(buffer.file())?;
3563 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3564 let worktree_entry = buffer_worktree
3565 .read(cx)
3566 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3567 if worktree_entry.is_ignored {
3568 return None;
3569 }
3570
3571 let language = buffer.language()?;
3572 if let Some(restrict_to_languages) = restrict_to_languages {
3573 if !restrict_to_languages.contains(language) {
3574 return None;
3575 }
3576 }
3577 Some((
3578 excerpt_id,
3579 (
3580 buffer_handle,
3581 buffer.version().clone(),
3582 excerpt_visible_range,
3583 ),
3584 ))
3585 })
3586 .collect()
3587 }
3588
3589 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3590 TextLayoutDetails {
3591 text_system: cx.text_system().clone(),
3592 editor_style: self.style.clone().unwrap(),
3593 rem_size: cx.rem_size(),
3594 scroll_anchor: self.scroll_manager.anchor(),
3595 visible_rows: self.visible_line_count(),
3596 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3597 }
3598 }
3599
3600 fn splice_inlays(
3601 &self,
3602 to_remove: Vec<InlayId>,
3603 to_insert: Vec<Inlay>,
3604 cx: &mut ViewContext<Self>,
3605 ) {
3606 self.display_map.update(cx, |display_map, cx| {
3607 display_map.splice_inlays(to_remove, to_insert, cx);
3608 });
3609 cx.notify();
3610 }
3611
3612 fn trigger_on_type_formatting(
3613 &self,
3614 input: String,
3615 cx: &mut ViewContext<Self>,
3616 ) -> Option<Task<Result<()>>> {
3617 if input.len() != 1 {
3618 return None;
3619 }
3620
3621 let project = self.project.as_ref()?;
3622 let position = self.selections.newest_anchor().head();
3623 let (buffer, buffer_position) = self
3624 .buffer
3625 .read(cx)
3626 .text_anchor_for_position(position, cx)?;
3627
3628 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3629 // hence we do LSP request & edit on host side only — add formats to host's history.
3630 let push_to_lsp_host_history = true;
3631 // If this is not the host, append its history with new edits.
3632 let push_to_client_history = project.read(cx).is_remote();
3633
3634 let on_type_formatting = project.update(cx, |project, cx| {
3635 project.on_type_format(
3636 buffer.clone(),
3637 buffer_position,
3638 input,
3639 push_to_lsp_host_history,
3640 cx,
3641 )
3642 });
3643 Some(cx.spawn(|editor, mut cx| async move {
3644 if let Some(transaction) = on_type_formatting.await? {
3645 if push_to_client_history {
3646 buffer
3647 .update(&mut cx, |buffer, _| {
3648 buffer.push_transaction(transaction, Instant::now());
3649 })
3650 .ok();
3651 }
3652 editor.update(&mut cx, |editor, cx| {
3653 editor.refresh_document_highlights(cx);
3654 })?;
3655 }
3656 Ok(())
3657 }))
3658 }
3659
3660 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3661 if self.pending_rename.is_some() {
3662 return;
3663 }
3664
3665 let Some(provider) = self.completion_provider.as_ref() else {
3666 return;
3667 };
3668
3669 let position = self.selections.newest_anchor().head();
3670 let (buffer, buffer_position) =
3671 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3672 output
3673 } else {
3674 return;
3675 };
3676
3677 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3678 let completions = provider.completions(&buffer, buffer_position, cx);
3679
3680 let id = post_inc(&mut self.next_completion_id);
3681 let task = cx.spawn(|this, mut cx| {
3682 async move {
3683 let completions = completions.await.log_err();
3684 let menu = if let Some(completions) = completions {
3685 let mut menu = CompletionsMenu {
3686 id,
3687 initial_position: position,
3688 match_candidates: completions
3689 .iter()
3690 .enumerate()
3691 .map(|(id, completion)| {
3692 StringMatchCandidate::new(
3693 id,
3694 completion.label.text[completion.label.filter_range.clone()]
3695 .into(),
3696 )
3697 })
3698 .collect(),
3699 buffer: buffer.clone(),
3700 completions: Arc::new(RwLock::new(completions.into())),
3701 matches: Vec::new().into(),
3702 selected_item: 0,
3703 scroll_handle: UniformListScrollHandle::new(),
3704 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3705 DebouncedDelay::new(),
3706 )),
3707 };
3708 menu.filter(query.as_deref(), cx.background_executor().clone())
3709 .await;
3710
3711 if menu.matches.is_empty() {
3712 None
3713 } else {
3714 this.update(&mut cx, |editor, cx| {
3715 let completions = menu.completions.clone();
3716 let matches = menu.matches.clone();
3717
3718 let delay_ms = EditorSettings::get_global(cx)
3719 .completion_documentation_secondary_query_debounce;
3720 let delay = Duration::from_millis(delay_ms);
3721
3722 editor
3723 .completion_documentation_pre_resolve_debounce
3724 .fire_new(delay, cx, |editor, cx| {
3725 CompletionsMenu::pre_resolve_completion_documentation(
3726 buffer,
3727 completions,
3728 matches,
3729 editor,
3730 cx,
3731 )
3732 });
3733 })
3734 .ok();
3735 Some(menu)
3736 }
3737 } else {
3738 None
3739 };
3740
3741 this.update(&mut cx, |this, cx| {
3742 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3743
3744 let mut context_menu = this.context_menu.write();
3745 match context_menu.as_ref() {
3746 None => {}
3747
3748 Some(ContextMenu::Completions(prev_menu)) => {
3749 if prev_menu.id > id {
3750 return;
3751 }
3752 }
3753
3754 _ => return,
3755 }
3756
3757 if this.focus_handle.is_focused(cx) && menu.is_some() {
3758 let menu = menu.unwrap();
3759 *context_menu = Some(ContextMenu::Completions(menu));
3760 drop(context_menu);
3761 this.discard_inline_completion(false, cx);
3762 cx.notify();
3763 } else if this.completion_tasks.len() <= 1 {
3764 // If there are no more completion tasks and the last menu was
3765 // empty, we should hide it. If it was already hidden, we should
3766 // also show the copilot completion when available.
3767 drop(context_menu);
3768 if this.hide_context_menu(cx).is_none() {
3769 this.update_visible_inline_completion(cx);
3770 }
3771 }
3772 })?;
3773
3774 Ok::<_, anyhow::Error>(())
3775 }
3776 .log_err()
3777 });
3778
3779 self.completion_tasks.push((id, task));
3780 }
3781
3782 pub fn confirm_completion(
3783 &mut self,
3784 action: &ConfirmCompletion,
3785 cx: &mut ViewContext<Self>,
3786 ) -> Option<Task<Result<()>>> {
3787 use language::ToOffset as _;
3788
3789 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3790 menu
3791 } else {
3792 return None;
3793 };
3794
3795 let mat = completions_menu
3796 .matches
3797 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3798 let buffer_handle = completions_menu.buffer;
3799 let completions = completions_menu.completions.read();
3800 let completion = completions.get(mat.candidate_id)?;
3801 cx.stop_propagation();
3802
3803 let snippet;
3804 let text;
3805 if completion.is_snippet() {
3806 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3807 text = snippet.as_ref().unwrap().text.clone();
3808 } else {
3809 snippet = None;
3810 text = completion.new_text.clone();
3811 };
3812 let selections = self.selections.all::<usize>(cx);
3813 let buffer = buffer_handle.read(cx);
3814 let old_range = completion.old_range.to_offset(buffer);
3815 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3816
3817 let newest_selection = self.selections.newest_anchor();
3818 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3819 return None;
3820 }
3821
3822 let lookbehind = newest_selection
3823 .start
3824 .text_anchor
3825 .to_offset(buffer)
3826 .saturating_sub(old_range.start);
3827 let lookahead = old_range
3828 .end
3829 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3830 let mut common_prefix_len = old_text
3831 .bytes()
3832 .zip(text.bytes())
3833 .take_while(|(a, b)| a == b)
3834 .count();
3835
3836 let snapshot = self.buffer.read(cx).snapshot(cx);
3837 let mut range_to_replace: Option<Range<isize>> = None;
3838 let mut ranges = Vec::new();
3839 for selection in &selections {
3840 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3841 let start = selection.start.saturating_sub(lookbehind);
3842 let end = selection.end + lookahead;
3843 if selection.id == newest_selection.id {
3844 range_to_replace = Some(
3845 ((start + common_prefix_len) as isize - selection.start as isize)
3846 ..(end as isize - selection.start as isize),
3847 );
3848 }
3849 ranges.push(start + common_prefix_len..end);
3850 } else {
3851 common_prefix_len = 0;
3852 ranges.clear();
3853 ranges.extend(selections.iter().map(|s| {
3854 if s.id == newest_selection.id {
3855 range_to_replace = Some(
3856 old_range.start.to_offset_utf16(&snapshot).0 as isize
3857 - selection.start as isize
3858 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3859 - selection.start as isize,
3860 );
3861 old_range.clone()
3862 } else {
3863 s.start..s.end
3864 }
3865 }));
3866 break;
3867 }
3868 }
3869 let text = &text[common_prefix_len..];
3870
3871 cx.emit(EditorEvent::InputHandled {
3872 utf16_range_to_replace: range_to_replace,
3873 text: text.into(),
3874 });
3875
3876 self.transact(cx, |this, cx| {
3877 if let Some(mut snippet) = snippet {
3878 snippet.text = text.to_string();
3879 for tabstop in snippet.tabstops.iter_mut().flatten() {
3880 tabstop.start -= common_prefix_len as isize;
3881 tabstop.end -= common_prefix_len as isize;
3882 }
3883
3884 this.insert_snippet(&ranges, snippet, cx).log_err();
3885 } else {
3886 this.buffer.update(cx, |buffer, cx| {
3887 buffer.edit(
3888 ranges.iter().map(|range| (range.clone(), text)),
3889 this.autoindent_mode.clone(),
3890 cx,
3891 );
3892 });
3893 }
3894
3895 this.refresh_inline_completion(true, cx);
3896 });
3897
3898 let provider = self.completion_provider.as_ref()?;
3899 let apply_edits = provider.apply_additional_edits_for_completion(
3900 buffer_handle,
3901 completion.clone(),
3902 true,
3903 cx,
3904 );
3905 Some(cx.foreground_executor().spawn(async move {
3906 apply_edits.await?;
3907 Ok(())
3908 }))
3909 }
3910
3911 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3912 let mut context_menu = self.context_menu.write();
3913 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3914 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3915 // Toggle if we're selecting the same one
3916 *context_menu = None;
3917 cx.notify();
3918 return;
3919 } else {
3920 // Otherwise, clear it and start a new one
3921 *context_menu = None;
3922 cx.notify();
3923 }
3924 }
3925 drop(context_menu);
3926 let snapshot = self.snapshot(cx);
3927 let deployed_from_indicator = action.deployed_from_indicator;
3928 let mut task = self.code_actions_task.take();
3929 let action = action.clone();
3930 cx.spawn(|this, mut cx| async move {
3931 while let Some(prev_task) = task {
3932 prev_task.await;
3933 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3934 }
3935
3936 let spawned_test_task = this.update(&mut cx, |this, cx| {
3937 if this.focus_handle.is_focused(cx) {
3938 let multibuffer_point = action
3939 .deployed_from_indicator
3940 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3941 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head());
3942 let (buffer, buffer_row) = snapshot
3943 .buffer_snapshot
3944 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3945 .and_then(|(buffer_snapshot, range)| {
3946 this.buffer
3947 .read(cx)
3948 .buffer(buffer_snapshot.remote_id())
3949 .map(|buffer| (buffer, range.start.row))
3950 })?;
3951 let (_, code_actions) = this
3952 .available_code_actions
3953 .clone()
3954 .and_then(|(location, code_actions)| {
3955 let snapshot = location.buffer.read(cx).snapshot();
3956 let point_range = location.range.to_point(&snapshot);
3957 let point_range = point_range.start.row..=point_range.end.row;
3958 if point_range.contains(&buffer_row) {
3959 Some((location, code_actions))
3960 } else {
3961 None
3962 }
3963 })
3964 .unzip();
3965 let buffer_id = buffer.read(cx).remote_id();
3966 let tasks = this
3967 .tasks
3968 .get(&(buffer_id, buffer_row))
3969 .map(|t| Arc::new(t.to_owned()));
3970 if tasks.is_none() && code_actions.is_none() {
3971 return None;
3972 }
3973
3974 this.completion_tasks.clear();
3975 this.discard_inline_completion(false, cx);
3976 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3977 |(tasks, (workspace, _))| {
3978 let position = Point::new(buffer_row, tasks.1.column);
3979 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3980 let location = Location {
3981 buffer: buffer.clone(),
3982 range: range_start..range_start,
3983 };
3984 workspace
3985 .update(cx, |workspace, cx| {
3986 tasks::task_context_for_location(workspace, location, cx)
3987 })
3988 .ok()
3989 .flatten()
3990 },
3991 );
3992 let tasks = tasks.zip(task_context).map(|(tasks, mut task_context)| {
3993 // Fill in the environmental variables from the tree-sitter captures
3994 let mut additional_task_variables = TaskVariables::default();
3995 for (capture_name, value) in tasks.1.extra_variables.clone() {
3996 additional_task_variables.insert(
3997 task::VariableName::Custom(capture_name.into()),
3998 value.clone(),
3999 );
4000 }
4001 task_context
4002 .task_variables
4003 .extend(additional_task_variables);
4004
4005 Arc::new(ResolvedTasks {
4006 templates: tasks
4007 .1
4008 .templates
4009 .iter()
4010 .filter_map(|(kind, template)| {
4011 template
4012 .resolve_task(&kind.to_id_base(), &task_context)
4013 .map(|task| (kind.clone(), task))
4014 })
4015 .collect(),
4016 position: snapshot
4017 .buffer_snapshot
4018 .anchor_before(Point::new(multibuffer_point.row, tasks.1.column)),
4019 })
4020 });
4021 let spawn_straight_away = tasks
4022 .as_ref()
4023 .map_or(false, |tasks| tasks.templates.len() == 1)
4024 && code_actions
4025 .as_ref()
4026 .map_or(true, |actions| actions.is_empty());
4027 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
4028 buffer,
4029 actions: CodeActionContents {
4030 tasks,
4031 actions: code_actions,
4032 },
4033 selected_item: Default::default(),
4034 scroll_handle: UniformListScrollHandle::default(),
4035 deployed_from_indicator,
4036 }));
4037 if spawn_straight_away {
4038 if let Some(task) =
4039 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
4040 {
4041 cx.notify();
4042 return Some(task);
4043 }
4044 }
4045 cx.notify();
4046 }
4047 Some(Task::ready(Ok(())))
4048 })?;
4049 if let Some(task) = spawned_test_task {
4050 task.await?;
4051 }
4052
4053 Ok::<_, anyhow::Error>(())
4054 })
4055 .detach_and_log_err(cx);
4056 }
4057
4058 pub fn confirm_code_action(
4059 &mut self,
4060 action: &ConfirmCodeAction,
4061 cx: &mut ViewContext<Self>,
4062 ) -> Option<Task<Result<()>>> {
4063 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4064 menu
4065 } else {
4066 return None;
4067 };
4068 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4069 let action = actions_menu.actions.get(action_ix)?;
4070 let title = action.label();
4071 let buffer = actions_menu.buffer;
4072 let workspace = self.workspace()?;
4073
4074 match action {
4075 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4076 workspace.update(cx, |workspace, cx| {
4077 workspace::tasks::schedule_resolved_task(
4078 workspace,
4079 task_source_kind,
4080 resolved_task,
4081 false,
4082 cx,
4083 );
4084
4085 Some(Task::ready(Ok(())))
4086 })
4087 }
4088 CodeActionsItem::CodeAction(action) => {
4089 let apply_code_actions = workspace
4090 .read(cx)
4091 .project()
4092 .clone()
4093 .update(cx, |project, cx| {
4094 project.apply_code_action(buffer, action, true, cx)
4095 });
4096 let workspace = workspace.downgrade();
4097 Some(cx.spawn(|editor, cx| async move {
4098 let project_transaction = apply_code_actions.await?;
4099 Self::open_project_transaction(
4100 &editor,
4101 workspace,
4102 project_transaction,
4103 title,
4104 cx,
4105 )
4106 .await
4107 }))
4108 }
4109 }
4110 }
4111
4112 pub async fn open_project_transaction(
4113 this: &WeakView<Editor>,
4114 workspace: WeakView<Workspace>,
4115 transaction: ProjectTransaction,
4116 title: String,
4117 mut cx: AsyncWindowContext,
4118 ) -> Result<()> {
4119 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4120
4121 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4122 cx.update(|cx| {
4123 entries.sort_unstable_by_key(|(buffer, _)| {
4124 buffer.read(cx).file().map(|f| f.path().clone())
4125 });
4126 })?;
4127
4128 // If the project transaction's edits are all contained within this editor, then
4129 // avoid opening a new editor to display them.
4130
4131 if let Some((buffer, transaction)) = entries.first() {
4132 if entries.len() == 1 {
4133 let excerpt = this.update(&mut cx, |editor, cx| {
4134 editor
4135 .buffer()
4136 .read(cx)
4137 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4138 })?;
4139 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4140 if excerpted_buffer == *buffer {
4141 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4142 let excerpt_range = excerpt_range.to_offset(buffer);
4143 buffer
4144 .edited_ranges_for_transaction::<usize>(transaction)
4145 .all(|range| {
4146 excerpt_range.start <= range.start
4147 && excerpt_range.end >= range.end
4148 })
4149 })?;
4150
4151 if all_edits_within_excerpt {
4152 return Ok(());
4153 }
4154 }
4155 }
4156 }
4157 } else {
4158 return Ok(());
4159 }
4160
4161 let mut ranges_to_highlight = Vec::new();
4162 let excerpt_buffer = cx.new_model(|cx| {
4163 let mut multibuffer =
4164 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4165 for (buffer_handle, transaction) in &entries {
4166 let buffer = buffer_handle.read(cx);
4167 ranges_to_highlight.extend(
4168 multibuffer.push_excerpts_with_context_lines(
4169 buffer_handle.clone(),
4170 buffer
4171 .edited_ranges_for_transaction::<usize>(transaction)
4172 .collect(),
4173 DEFAULT_MULTIBUFFER_CONTEXT,
4174 cx,
4175 ),
4176 );
4177 }
4178 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4179 multibuffer
4180 })?;
4181
4182 workspace.update(&mut cx, |workspace, cx| {
4183 let project = workspace.project().clone();
4184 let editor =
4185 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4186 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4187 editor.update(cx, |editor, cx| {
4188 editor.highlight_background::<Self>(
4189 &ranges_to_highlight,
4190 |theme| theme.editor_highlighted_line_background,
4191 cx,
4192 );
4193 });
4194 })?;
4195
4196 Ok(())
4197 }
4198
4199 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4200 let project = self.project.clone()?;
4201 let buffer = self.buffer.read(cx);
4202 let newest_selection = self.selections.newest_anchor().clone();
4203 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4204 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4205 if start_buffer != end_buffer {
4206 return None;
4207 }
4208
4209 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4210 cx.background_executor()
4211 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4212 .await;
4213
4214 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4215 project.code_actions(&start_buffer, start..end, cx)
4216 }) {
4217 code_actions.await
4218 } else {
4219 Vec::new()
4220 };
4221
4222 this.update(&mut cx, |this, cx| {
4223 this.available_code_actions = if actions.is_empty() {
4224 None
4225 } else {
4226 Some((
4227 Location {
4228 buffer: start_buffer,
4229 range: start..end,
4230 },
4231 actions.into(),
4232 ))
4233 };
4234 cx.notify();
4235 })
4236 .log_err();
4237 }));
4238 None
4239 }
4240
4241 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4242 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4243 self.show_git_blame_inline = false;
4244
4245 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4246 cx.background_executor().timer(delay).await;
4247
4248 this.update(&mut cx, |this, cx| {
4249 this.show_git_blame_inline = true;
4250 cx.notify();
4251 })
4252 .log_err();
4253 }));
4254 }
4255 }
4256
4257 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4258 if self.pending_rename.is_some() {
4259 return None;
4260 }
4261
4262 let project = self.project.clone()?;
4263 let buffer = self.buffer.read(cx);
4264 let newest_selection = self.selections.newest_anchor().clone();
4265 let cursor_position = newest_selection.head();
4266 let (cursor_buffer, cursor_buffer_position) =
4267 buffer.text_anchor_for_position(cursor_position, cx)?;
4268 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4269 if cursor_buffer != tail_buffer {
4270 return None;
4271 }
4272
4273 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4274 cx.background_executor()
4275 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4276 .await;
4277
4278 let highlights = if let Some(highlights) = project
4279 .update(&mut cx, |project, cx| {
4280 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4281 })
4282 .log_err()
4283 {
4284 highlights.await.log_err()
4285 } else {
4286 None
4287 };
4288
4289 if let Some(highlights) = highlights {
4290 this.update(&mut cx, |this, cx| {
4291 if this.pending_rename.is_some() {
4292 return;
4293 }
4294
4295 let buffer_id = cursor_position.buffer_id;
4296 let buffer = this.buffer.read(cx);
4297 if !buffer
4298 .text_anchor_for_position(cursor_position, cx)
4299 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4300 {
4301 return;
4302 }
4303
4304 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4305 let mut write_ranges = Vec::new();
4306 let mut read_ranges = Vec::new();
4307 for highlight in highlights {
4308 for (excerpt_id, excerpt_range) in
4309 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4310 {
4311 let start = highlight
4312 .range
4313 .start
4314 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4315 let end = highlight
4316 .range
4317 .end
4318 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4319 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4320 continue;
4321 }
4322
4323 let range = Anchor {
4324 buffer_id,
4325 excerpt_id: excerpt_id,
4326 text_anchor: start,
4327 }..Anchor {
4328 buffer_id,
4329 excerpt_id,
4330 text_anchor: end,
4331 };
4332 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4333 write_ranges.push(range);
4334 } else {
4335 read_ranges.push(range);
4336 }
4337 }
4338 }
4339
4340 this.highlight_background::<DocumentHighlightRead>(
4341 &read_ranges,
4342 |theme| theme.editor_document_highlight_read_background,
4343 cx,
4344 );
4345 this.highlight_background::<DocumentHighlightWrite>(
4346 &write_ranges,
4347 |theme| theme.editor_document_highlight_write_background,
4348 cx,
4349 );
4350 cx.notify();
4351 })
4352 .log_err();
4353 }
4354 }));
4355 None
4356 }
4357
4358 fn refresh_inline_completion(
4359 &mut self,
4360 debounce: bool,
4361 cx: &mut ViewContext<Self>,
4362 ) -> Option<()> {
4363 let provider = self.inline_completion_provider()?;
4364 let cursor = self.selections.newest_anchor().head();
4365 let (buffer, cursor_buffer_position) =
4366 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4367 if !self.show_inline_completions
4368 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4369 {
4370 self.discard_inline_completion(false, cx);
4371 return None;
4372 }
4373
4374 self.update_visible_inline_completion(cx);
4375 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4376 Some(())
4377 }
4378
4379 fn cycle_inline_completion(
4380 &mut self,
4381 direction: Direction,
4382 cx: &mut ViewContext<Self>,
4383 ) -> Option<()> {
4384 let provider = self.inline_completion_provider()?;
4385 let cursor = self.selections.newest_anchor().head();
4386 let (buffer, cursor_buffer_position) =
4387 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4388 if !self.show_inline_completions
4389 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4390 {
4391 return None;
4392 }
4393
4394 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4395 self.update_visible_inline_completion(cx);
4396
4397 Some(())
4398 }
4399
4400 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4401 if !self.has_active_inline_completion(cx) {
4402 self.refresh_inline_completion(false, cx);
4403 return;
4404 }
4405
4406 self.update_visible_inline_completion(cx);
4407 }
4408
4409 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4410 self.show_cursor_names(cx);
4411 }
4412
4413 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4414 self.show_cursor_names = true;
4415 cx.notify();
4416 cx.spawn(|this, mut cx| async move {
4417 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4418 this.update(&mut cx, |this, cx| {
4419 this.show_cursor_names = false;
4420 cx.notify()
4421 })
4422 .ok()
4423 })
4424 .detach();
4425 }
4426
4427 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4428 if self.has_active_inline_completion(cx) {
4429 self.cycle_inline_completion(Direction::Next, cx);
4430 } else {
4431 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4432 if is_copilot_disabled {
4433 cx.propagate();
4434 }
4435 }
4436 }
4437
4438 pub fn previous_inline_completion(
4439 &mut self,
4440 _: &PreviousInlineCompletion,
4441 cx: &mut ViewContext<Self>,
4442 ) {
4443 if self.has_active_inline_completion(cx) {
4444 self.cycle_inline_completion(Direction::Prev, cx);
4445 } else {
4446 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4447 if is_copilot_disabled {
4448 cx.propagate();
4449 }
4450 }
4451 }
4452
4453 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4454 if let Some(completion) = self.take_active_inline_completion(cx) {
4455 if let Some(provider) = self.inline_completion_provider() {
4456 provider.accept(cx);
4457 }
4458
4459 cx.emit(EditorEvent::InputHandled {
4460 utf16_range_to_replace: None,
4461 text: completion.text.to_string().into(),
4462 });
4463 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4464 self.refresh_inline_completion(true, cx);
4465 cx.notify();
4466 true
4467 } else {
4468 false
4469 }
4470 }
4471
4472 pub fn accept_partial_inline_completion(
4473 &mut self,
4474 _: &AcceptPartialInlineCompletion,
4475 cx: &mut ViewContext<Self>,
4476 ) {
4477 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4478 if let Some(completion) = self.take_active_inline_completion(cx) {
4479 let mut partial_completion = completion
4480 .text
4481 .chars()
4482 .by_ref()
4483 .take_while(|c| c.is_alphabetic())
4484 .collect::<String>();
4485 if partial_completion.is_empty() {
4486 partial_completion = completion
4487 .text
4488 .chars()
4489 .by_ref()
4490 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4491 .collect::<String>();
4492 }
4493
4494 cx.emit(EditorEvent::InputHandled {
4495 utf16_range_to_replace: None,
4496 text: partial_completion.clone().into(),
4497 });
4498 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4499 self.refresh_inline_completion(true, cx);
4500 cx.notify();
4501 }
4502 }
4503 }
4504
4505 fn discard_inline_completion(
4506 &mut self,
4507 should_report_inline_completion_event: bool,
4508 cx: &mut ViewContext<Self>,
4509 ) -> bool {
4510 if let Some(provider) = self.inline_completion_provider() {
4511 provider.discard(should_report_inline_completion_event, cx);
4512 }
4513
4514 self.take_active_inline_completion(cx).is_some()
4515 }
4516
4517 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4518 if let Some(completion) = self.active_inline_completion.as_ref() {
4519 let buffer = self.buffer.read(cx).read(cx);
4520 completion.position.is_valid(&buffer)
4521 } else {
4522 false
4523 }
4524 }
4525
4526 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4527 let completion = self.active_inline_completion.take()?;
4528 self.display_map.update(cx, |map, cx| {
4529 map.splice_inlays(vec![completion.id], Default::default(), cx);
4530 });
4531 let buffer = self.buffer.read(cx).read(cx);
4532
4533 if completion.position.is_valid(&buffer) {
4534 Some(completion)
4535 } else {
4536 None
4537 }
4538 }
4539
4540 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4541 let selection = self.selections.newest_anchor();
4542 let cursor = selection.head();
4543
4544 if self.context_menu.read().is_none()
4545 && self.completion_tasks.is_empty()
4546 && selection.start == selection.end
4547 {
4548 if let Some(provider) = self.inline_completion_provider() {
4549 if let Some((buffer, cursor_buffer_position)) =
4550 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4551 {
4552 if let Some(text) =
4553 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4554 {
4555 let text = Rope::from(text);
4556 let mut to_remove = Vec::new();
4557 if let Some(completion) = self.active_inline_completion.take() {
4558 to_remove.push(completion.id);
4559 }
4560
4561 let completion_inlay =
4562 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4563 self.active_inline_completion = Some(completion_inlay.clone());
4564 self.display_map.update(cx, move |map, cx| {
4565 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4566 });
4567 cx.notify();
4568 return;
4569 }
4570 }
4571 }
4572 }
4573
4574 self.discard_inline_completion(false, cx);
4575 }
4576
4577 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4578 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4579 }
4580
4581 fn render_code_actions_indicator(
4582 &self,
4583 _style: &EditorStyle,
4584 row: DisplayRow,
4585 is_active: bool,
4586 cx: &mut ViewContext<Self>,
4587 ) -> Option<IconButton> {
4588 if self.available_code_actions.is_some() {
4589 Some(
4590 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4591 .icon_size(IconSize::XSmall)
4592 .size(ui::ButtonSize::None)
4593 .icon_color(Color::Muted)
4594 .selected(is_active)
4595 .on_click(cx.listener(move |editor, _e, cx| {
4596 editor.focus(cx);
4597 editor.toggle_code_actions(
4598 &ToggleCodeActions {
4599 deployed_from_indicator: Some(row),
4600 },
4601 cx,
4602 );
4603 })),
4604 )
4605 } else {
4606 None
4607 }
4608 }
4609
4610 fn clear_tasks(&mut self) {
4611 self.tasks.clear()
4612 }
4613
4614 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: (usize, RunnableTasks)) {
4615 if let Some(_) = self.tasks.insert(key, value) {
4616 // This case should hopefully be rare, but just in case...
4617 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4618 }
4619 }
4620
4621 fn render_run_indicator(
4622 &self,
4623 _style: &EditorStyle,
4624 is_active: bool,
4625 row: DisplayRow,
4626 cx: &mut ViewContext<Self>,
4627 ) -> IconButton {
4628 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4629 .icon_size(IconSize::XSmall)
4630 .size(ui::ButtonSize::None)
4631 .icon_color(Color::Muted)
4632 .selected(is_active)
4633 .on_click(cx.listener(move |editor, _e, cx| {
4634 editor.focus(cx);
4635 editor.toggle_code_actions(
4636 &ToggleCodeActions {
4637 deployed_from_indicator: Some(row),
4638 },
4639 cx,
4640 );
4641 }))
4642 }
4643
4644 pub fn context_menu_visible(&self) -> bool {
4645 self.context_menu
4646 .read()
4647 .as_ref()
4648 .map_or(false, |menu| menu.visible())
4649 }
4650
4651 fn render_context_menu(
4652 &self,
4653 cursor_position: DisplayPoint,
4654 style: &EditorStyle,
4655 max_height: Pixels,
4656 cx: &mut ViewContext<Editor>,
4657 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4658 self.context_menu.read().as_ref().map(|menu| {
4659 menu.render(
4660 cursor_position,
4661 style,
4662 max_height,
4663 self.workspace.as_ref().map(|(w, _)| w.clone()),
4664 cx,
4665 )
4666 })
4667 }
4668
4669 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4670 cx.notify();
4671 self.completion_tasks.clear();
4672 let context_menu = self.context_menu.write().take();
4673 if context_menu.is_some() {
4674 self.update_visible_inline_completion(cx);
4675 }
4676 context_menu
4677 }
4678
4679 pub fn insert_snippet(
4680 &mut self,
4681 insertion_ranges: &[Range<usize>],
4682 snippet: Snippet,
4683 cx: &mut ViewContext<Self>,
4684 ) -> Result<()> {
4685 struct Tabstop<T> {
4686 is_end_tabstop: bool,
4687 ranges: Vec<Range<T>>,
4688 }
4689
4690 let tabstops = self.buffer.update(cx, |buffer, cx| {
4691 let snippet_text: Arc<str> = snippet.text.clone().into();
4692 buffer.edit(
4693 insertion_ranges
4694 .iter()
4695 .cloned()
4696 .map(|range| (range, snippet_text.clone())),
4697 Some(AutoindentMode::EachLine),
4698 cx,
4699 );
4700
4701 let snapshot = &*buffer.read(cx);
4702 let snippet = &snippet;
4703 snippet
4704 .tabstops
4705 .iter()
4706 .map(|tabstop| {
4707 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4708 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4709 });
4710 let mut tabstop_ranges = tabstop
4711 .iter()
4712 .flat_map(|tabstop_range| {
4713 let mut delta = 0_isize;
4714 insertion_ranges.iter().map(move |insertion_range| {
4715 let insertion_start = insertion_range.start as isize + delta;
4716 delta +=
4717 snippet.text.len() as isize - insertion_range.len() as isize;
4718
4719 let start = ((insertion_start + tabstop_range.start) as usize)
4720 .min(snapshot.len());
4721 let end = ((insertion_start + tabstop_range.end) as usize)
4722 .min(snapshot.len());
4723 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4724 })
4725 })
4726 .collect::<Vec<_>>();
4727 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4728
4729 Tabstop {
4730 is_end_tabstop,
4731 ranges: tabstop_ranges,
4732 }
4733 })
4734 .collect::<Vec<_>>()
4735 });
4736
4737 if let Some(tabstop) = tabstops.first() {
4738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4739 s.select_ranges(tabstop.ranges.iter().cloned());
4740 });
4741
4742 // If we're already at the last tabstop and it's at the end of the snippet,
4743 // we're done, we don't need to keep the state around.
4744 if !tabstop.is_end_tabstop {
4745 let ranges = tabstops
4746 .into_iter()
4747 .map(|tabstop| tabstop.ranges)
4748 .collect::<Vec<_>>();
4749 self.snippet_stack.push(SnippetState {
4750 active_index: 0,
4751 ranges,
4752 });
4753 }
4754
4755 // Check whether the just-entered snippet ends with an auto-closable bracket.
4756 if self.autoclose_regions.is_empty() {
4757 let snapshot = self.buffer.read(cx).snapshot(cx);
4758 for selection in &mut self.selections.all::<Point>(cx) {
4759 let selection_head = selection.head();
4760 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4761 continue;
4762 };
4763
4764 let mut bracket_pair = None;
4765 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4766 let prev_chars = snapshot
4767 .reversed_chars_at(selection_head)
4768 .collect::<String>();
4769 for (pair, enabled) in scope.brackets() {
4770 if enabled
4771 && pair.close
4772 && prev_chars.starts_with(pair.start.as_str())
4773 && next_chars.starts_with(pair.end.as_str())
4774 {
4775 bracket_pair = Some(pair.clone());
4776 break;
4777 }
4778 }
4779 if let Some(pair) = bracket_pair {
4780 let start = snapshot.anchor_after(selection_head);
4781 let end = snapshot.anchor_after(selection_head);
4782 self.autoclose_regions.push(AutocloseRegion {
4783 selection_id: selection.id,
4784 range: start..end,
4785 pair,
4786 });
4787 }
4788 }
4789 }
4790 }
4791 Ok(())
4792 }
4793
4794 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4795 self.move_to_snippet_tabstop(Bias::Right, cx)
4796 }
4797
4798 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4799 self.move_to_snippet_tabstop(Bias::Left, cx)
4800 }
4801
4802 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4803 if let Some(mut snippet) = self.snippet_stack.pop() {
4804 match bias {
4805 Bias::Left => {
4806 if snippet.active_index > 0 {
4807 snippet.active_index -= 1;
4808 } else {
4809 self.snippet_stack.push(snippet);
4810 return false;
4811 }
4812 }
4813 Bias::Right => {
4814 if snippet.active_index + 1 < snippet.ranges.len() {
4815 snippet.active_index += 1;
4816 } else {
4817 self.snippet_stack.push(snippet);
4818 return false;
4819 }
4820 }
4821 }
4822 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4823 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4824 s.select_anchor_ranges(current_ranges.iter().cloned())
4825 });
4826 // If snippet state is not at the last tabstop, push it back on the stack
4827 if snippet.active_index + 1 < snippet.ranges.len() {
4828 self.snippet_stack.push(snippet);
4829 }
4830 return true;
4831 }
4832 }
4833
4834 false
4835 }
4836
4837 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4838 self.transact(cx, |this, cx| {
4839 this.select_all(&SelectAll, cx);
4840 this.insert("", cx);
4841 });
4842 }
4843
4844 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4845 self.transact(cx, |this, cx| {
4846 this.select_autoclose_pair(cx);
4847 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4848 if !this.selections.line_mode {
4849 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4850 for selection in &mut selections {
4851 if selection.is_empty() {
4852 let old_head = selection.head();
4853 let mut new_head =
4854 movement::left(&display_map, old_head.to_display_point(&display_map))
4855 .to_point(&display_map);
4856 if let Some((buffer, line_buffer_range)) = display_map
4857 .buffer_snapshot
4858 .buffer_line_for_row(MultiBufferRow(old_head.row))
4859 {
4860 let indent_size =
4861 buffer.indent_size_for_line(line_buffer_range.start.row);
4862 let indent_len = match indent_size.kind {
4863 IndentKind::Space => {
4864 buffer.settings_at(line_buffer_range.start, cx).tab_size
4865 }
4866 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4867 };
4868 if old_head.column <= indent_size.len && old_head.column > 0 {
4869 let indent_len = indent_len.get();
4870 new_head = cmp::min(
4871 new_head,
4872 MultiBufferPoint::new(
4873 old_head.row,
4874 ((old_head.column - 1) / indent_len) * indent_len,
4875 ),
4876 );
4877 }
4878 }
4879
4880 selection.set_head(new_head, SelectionGoal::None);
4881 }
4882 }
4883 }
4884
4885 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4886 this.insert("", cx);
4887 this.refresh_inline_completion(true, cx);
4888 });
4889 }
4890
4891 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4892 self.transact(cx, |this, cx| {
4893 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4894 let line_mode = s.line_mode;
4895 s.move_with(|map, selection| {
4896 if selection.is_empty() && !line_mode {
4897 let cursor = movement::right(map, selection.head());
4898 selection.end = cursor;
4899 selection.reversed = true;
4900 selection.goal = SelectionGoal::None;
4901 }
4902 })
4903 });
4904 this.insert("", cx);
4905 this.refresh_inline_completion(true, cx);
4906 });
4907 }
4908
4909 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4910 if self.move_to_prev_snippet_tabstop(cx) {
4911 return;
4912 }
4913
4914 self.outdent(&Outdent, cx);
4915 }
4916
4917 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4918 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4919 return;
4920 }
4921
4922 let mut selections = self.selections.all_adjusted(cx);
4923 let buffer = self.buffer.read(cx);
4924 let snapshot = buffer.snapshot(cx);
4925 let rows_iter = selections.iter().map(|s| s.head().row);
4926 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4927
4928 let mut edits = Vec::new();
4929 let mut prev_edited_row = 0;
4930 let mut row_delta = 0;
4931 for selection in &mut selections {
4932 if selection.start.row != prev_edited_row {
4933 row_delta = 0;
4934 }
4935 prev_edited_row = selection.end.row;
4936
4937 // If the selection is non-empty, then increase the indentation of the selected lines.
4938 if !selection.is_empty() {
4939 row_delta =
4940 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4941 continue;
4942 }
4943
4944 // If the selection is empty and the cursor is in the leading whitespace before the
4945 // suggested indentation, then auto-indent the line.
4946 let cursor = selection.head();
4947 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4948 if let Some(suggested_indent) =
4949 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4950 {
4951 if cursor.column < suggested_indent.len
4952 && cursor.column <= current_indent.len
4953 && current_indent.len <= suggested_indent.len
4954 {
4955 selection.start = Point::new(cursor.row, suggested_indent.len);
4956 selection.end = selection.start;
4957 if row_delta == 0 {
4958 edits.extend(Buffer::edit_for_indent_size_adjustment(
4959 cursor.row,
4960 current_indent,
4961 suggested_indent,
4962 ));
4963 row_delta = suggested_indent.len - current_indent.len;
4964 }
4965 continue;
4966 }
4967 }
4968
4969 // Accept copilot completion if there is only one selection and the cursor is not
4970 // in the leading whitespace.
4971 if self.selections.count() == 1
4972 && cursor.column >= current_indent.len
4973 && self.has_active_inline_completion(cx)
4974 {
4975 self.accept_inline_completion(cx);
4976 return;
4977 }
4978
4979 // Otherwise, insert a hard or soft tab.
4980 let settings = buffer.settings_at(cursor, cx);
4981 let tab_size = if settings.hard_tabs {
4982 IndentSize::tab()
4983 } else {
4984 let tab_size = settings.tab_size.get();
4985 let char_column = snapshot
4986 .text_for_range(Point::new(cursor.row, 0)..cursor)
4987 .flat_map(str::chars)
4988 .count()
4989 + row_delta as usize;
4990 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4991 IndentSize::spaces(chars_to_next_tab_stop)
4992 };
4993 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4994 selection.end = selection.start;
4995 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4996 row_delta += tab_size.len;
4997 }
4998
4999 self.transact(cx, |this, cx| {
5000 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5001 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5002 this.refresh_inline_completion(true, cx);
5003 });
5004 }
5005
5006 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5007 if self.read_only(cx) {
5008 return;
5009 }
5010 let mut selections = self.selections.all::<Point>(cx);
5011 let mut prev_edited_row = 0;
5012 let mut row_delta = 0;
5013 let mut edits = Vec::new();
5014 let buffer = self.buffer.read(cx);
5015 let snapshot = buffer.snapshot(cx);
5016 for selection in &mut selections {
5017 if selection.start.row != prev_edited_row {
5018 row_delta = 0;
5019 }
5020 prev_edited_row = selection.end.row;
5021
5022 row_delta =
5023 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5024 }
5025
5026 self.transact(cx, |this, cx| {
5027 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5028 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5029 });
5030 }
5031
5032 fn indent_selection(
5033 buffer: &MultiBuffer,
5034 snapshot: &MultiBufferSnapshot,
5035 selection: &mut Selection<Point>,
5036 edits: &mut Vec<(Range<Point>, String)>,
5037 delta_for_start_row: u32,
5038 cx: &AppContext,
5039 ) -> u32 {
5040 let settings = buffer.settings_at(selection.start, cx);
5041 let tab_size = settings.tab_size.get();
5042 let indent_kind = if settings.hard_tabs {
5043 IndentKind::Tab
5044 } else {
5045 IndentKind::Space
5046 };
5047 let mut start_row = selection.start.row;
5048 let mut end_row = selection.end.row + 1;
5049
5050 // If a selection ends at the beginning of a line, don't indent
5051 // that last line.
5052 if selection.end.column == 0 && selection.end.row > selection.start.row {
5053 end_row -= 1;
5054 }
5055
5056 // Avoid re-indenting a row that has already been indented by a
5057 // previous selection, but still update this selection's column
5058 // to reflect that indentation.
5059 if delta_for_start_row > 0 {
5060 start_row += 1;
5061 selection.start.column += delta_for_start_row;
5062 if selection.end.row == selection.start.row {
5063 selection.end.column += delta_for_start_row;
5064 }
5065 }
5066
5067 let mut delta_for_end_row = 0;
5068 let has_multiple_rows = start_row + 1 != end_row;
5069 for row in start_row..end_row {
5070 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5071 let indent_delta = match (current_indent.kind, indent_kind) {
5072 (IndentKind::Space, IndentKind::Space) => {
5073 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5074 IndentSize::spaces(columns_to_next_tab_stop)
5075 }
5076 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5077 (_, IndentKind::Tab) => IndentSize::tab(),
5078 };
5079
5080 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5081 0
5082 } else {
5083 selection.start.column
5084 };
5085 let row_start = Point::new(row, start);
5086 edits.push((
5087 row_start..row_start,
5088 indent_delta.chars().collect::<String>(),
5089 ));
5090
5091 // Update this selection's endpoints to reflect the indentation.
5092 if row == selection.start.row {
5093 selection.start.column += indent_delta.len;
5094 }
5095 if row == selection.end.row {
5096 selection.end.column += indent_delta.len;
5097 delta_for_end_row = indent_delta.len;
5098 }
5099 }
5100
5101 if selection.start.row == selection.end.row {
5102 delta_for_start_row + delta_for_end_row
5103 } else {
5104 delta_for_end_row
5105 }
5106 }
5107
5108 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5109 if self.read_only(cx) {
5110 return;
5111 }
5112 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5113 let selections = self.selections.all::<Point>(cx);
5114 let mut deletion_ranges = Vec::new();
5115 let mut last_outdent = None;
5116 {
5117 let buffer = self.buffer.read(cx);
5118 let snapshot = buffer.snapshot(cx);
5119 for selection in &selections {
5120 let settings = buffer.settings_at(selection.start, cx);
5121 let tab_size = settings.tab_size.get();
5122 let mut rows = selection.spanned_rows(false, &display_map);
5123
5124 // Avoid re-outdenting a row that has already been outdented by a
5125 // previous selection.
5126 if let Some(last_row) = last_outdent {
5127 if last_row == rows.start {
5128 rows.start = rows.start.next_row();
5129 }
5130 }
5131 let has_multiple_rows = rows.len() > 1;
5132 for row in rows.iter_rows() {
5133 let indent_size = snapshot.indent_size_for_line(row);
5134 if indent_size.len > 0 {
5135 let deletion_len = match indent_size.kind {
5136 IndentKind::Space => {
5137 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5138 if columns_to_prev_tab_stop == 0 {
5139 tab_size
5140 } else {
5141 columns_to_prev_tab_stop
5142 }
5143 }
5144 IndentKind::Tab => 1,
5145 };
5146 let start = if has_multiple_rows
5147 || deletion_len > selection.start.column
5148 || indent_size.len < selection.start.column
5149 {
5150 0
5151 } else {
5152 selection.start.column - deletion_len
5153 };
5154 deletion_ranges.push(
5155 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5156 );
5157 last_outdent = Some(row);
5158 }
5159 }
5160 }
5161 }
5162
5163 self.transact(cx, |this, cx| {
5164 this.buffer.update(cx, |buffer, cx| {
5165 let empty_str: Arc<str> = "".into();
5166 buffer.edit(
5167 deletion_ranges
5168 .into_iter()
5169 .map(|range| (range, empty_str.clone())),
5170 None,
5171 cx,
5172 );
5173 });
5174 let selections = this.selections.all::<usize>(cx);
5175 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5176 });
5177 }
5178
5179 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5180 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5181 let selections = self.selections.all::<Point>(cx);
5182
5183 let mut new_cursors = Vec::new();
5184 let mut edit_ranges = Vec::new();
5185 let mut selections = selections.iter().peekable();
5186 while let Some(selection) = selections.next() {
5187 let mut rows = selection.spanned_rows(false, &display_map);
5188 let goal_display_column = selection.head().to_display_point(&display_map).column();
5189
5190 // Accumulate contiguous regions of rows that we want to delete.
5191 while let Some(next_selection) = selections.peek() {
5192 let next_rows = next_selection.spanned_rows(false, &display_map);
5193 if next_rows.start <= rows.end {
5194 rows.end = next_rows.end;
5195 selections.next().unwrap();
5196 } else {
5197 break;
5198 }
5199 }
5200
5201 let buffer = &display_map.buffer_snapshot;
5202 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5203 let edit_end;
5204 let cursor_buffer_row;
5205 if buffer.max_point().row >= rows.end.0 {
5206 // If there's a line after the range, delete the \n from the end of the row range
5207 // and position the cursor on the next line.
5208 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5209 cursor_buffer_row = rows.end;
5210 } else {
5211 // If there isn't a line after the range, delete the \n from the line before the
5212 // start of the row range and position the cursor there.
5213 edit_start = edit_start.saturating_sub(1);
5214 edit_end = buffer.len();
5215 cursor_buffer_row = rows.start.previous_row();
5216 }
5217
5218 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5219 *cursor.column_mut() =
5220 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5221
5222 new_cursors.push((
5223 selection.id,
5224 buffer.anchor_after(cursor.to_point(&display_map)),
5225 ));
5226 edit_ranges.push(edit_start..edit_end);
5227 }
5228
5229 self.transact(cx, |this, cx| {
5230 let buffer = this.buffer.update(cx, |buffer, cx| {
5231 let empty_str: Arc<str> = "".into();
5232 buffer.edit(
5233 edit_ranges
5234 .into_iter()
5235 .map(|range| (range, empty_str.clone())),
5236 None,
5237 cx,
5238 );
5239 buffer.snapshot(cx)
5240 });
5241 let new_selections = new_cursors
5242 .into_iter()
5243 .map(|(id, cursor)| {
5244 let cursor = cursor.to_point(&buffer);
5245 Selection {
5246 id,
5247 start: cursor,
5248 end: cursor,
5249 reversed: false,
5250 goal: SelectionGoal::None,
5251 }
5252 })
5253 .collect();
5254
5255 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5256 s.select(new_selections);
5257 });
5258 });
5259 }
5260
5261 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5262 if self.read_only(cx) {
5263 return;
5264 }
5265 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5266 for selection in self.selections.all::<Point>(cx) {
5267 let start = MultiBufferRow(selection.start.row);
5268 let end = if selection.start.row == selection.end.row {
5269 MultiBufferRow(selection.start.row + 1)
5270 } else {
5271 MultiBufferRow(selection.end.row)
5272 };
5273
5274 if let Some(last_row_range) = row_ranges.last_mut() {
5275 if start <= last_row_range.end {
5276 last_row_range.end = end;
5277 continue;
5278 }
5279 }
5280 row_ranges.push(start..end);
5281 }
5282
5283 let snapshot = self.buffer.read(cx).snapshot(cx);
5284 let mut cursor_positions = Vec::new();
5285 for row_range in &row_ranges {
5286 let anchor = snapshot.anchor_before(Point::new(
5287 row_range.end.previous_row().0,
5288 snapshot.line_len(row_range.end.previous_row()),
5289 ));
5290 cursor_positions.push(anchor..anchor);
5291 }
5292
5293 self.transact(cx, |this, cx| {
5294 for row_range in row_ranges.into_iter().rev() {
5295 for row in row_range.iter_rows().rev() {
5296 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5297 let next_line_row = row.next_row();
5298 let indent = snapshot.indent_size_for_line(next_line_row);
5299 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5300
5301 let replace = if snapshot.line_len(next_line_row) > indent.len {
5302 " "
5303 } else {
5304 ""
5305 };
5306
5307 this.buffer.update(cx, |buffer, cx| {
5308 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5309 });
5310 }
5311 }
5312
5313 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5314 s.select_anchor_ranges(cursor_positions)
5315 });
5316 });
5317 }
5318
5319 pub fn sort_lines_case_sensitive(
5320 &mut self,
5321 _: &SortLinesCaseSensitive,
5322 cx: &mut ViewContext<Self>,
5323 ) {
5324 self.manipulate_lines(cx, |lines| lines.sort())
5325 }
5326
5327 pub fn sort_lines_case_insensitive(
5328 &mut self,
5329 _: &SortLinesCaseInsensitive,
5330 cx: &mut ViewContext<Self>,
5331 ) {
5332 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5333 }
5334
5335 pub fn unique_lines_case_insensitive(
5336 &mut self,
5337 _: &UniqueLinesCaseInsensitive,
5338 cx: &mut ViewContext<Self>,
5339 ) {
5340 self.manipulate_lines(cx, |lines| {
5341 let mut seen = HashSet::default();
5342 lines.retain(|line| seen.insert(line.to_lowercase()));
5343 })
5344 }
5345
5346 pub fn unique_lines_case_sensitive(
5347 &mut self,
5348 _: &UniqueLinesCaseSensitive,
5349 cx: &mut ViewContext<Self>,
5350 ) {
5351 self.manipulate_lines(cx, |lines| {
5352 let mut seen = HashSet::default();
5353 lines.retain(|line| seen.insert(*line));
5354 })
5355 }
5356
5357 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5358 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5359 if !revert_changes.is_empty() {
5360 self.transact(cx, |editor, cx| {
5361 editor.buffer().update(cx, |multi_buffer, cx| {
5362 for (buffer_id, changes) in revert_changes {
5363 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5364 buffer.update(cx, |buffer, cx| {
5365 buffer.edit(
5366 changes.into_iter().map(|(range, text)| {
5367 (range, text.to_string().map(Arc::<str>::from))
5368 }),
5369 None,
5370 cx,
5371 );
5372 });
5373 }
5374 }
5375 });
5376 editor.change_selections(None, cx, |selections| selections.refresh());
5377 });
5378 }
5379 }
5380
5381 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5382 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5383 let project_path = buffer.read(cx).project_path(cx)?;
5384 let project = self.project.as_ref()?.read(cx);
5385 let entry = project.entry_for_path(&project_path, cx)?;
5386 let abs_path = project.absolute_path(&project_path, cx)?;
5387 let parent = if entry.is_symlink {
5388 abs_path.canonicalize().ok()?
5389 } else {
5390 abs_path
5391 }
5392 .parent()?
5393 .to_path_buf();
5394 Some(parent)
5395 }) {
5396 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5397 }
5398 }
5399
5400 fn gather_revert_changes(
5401 &mut self,
5402 selections: &[Selection<Anchor>],
5403 cx: &mut ViewContext<'_, Editor>,
5404 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5405 let mut revert_changes = HashMap::default();
5406 self.buffer.update(cx, |multi_buffer, cx| {
5407 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5408 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5409 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5410 }
5411 });
5412 revert_changes
5413 }
5414
5415 fn prepare_revert_change(
5416 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5417 multi_buffer: &MultiBuffer,
5418 hunk: &DiffHunk<MultiBufferRow>,
5419 cx: &mut AppContext,
5420 ) -> Option<()> {
5421 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5422 let buffer = buffer.read(cx);
5423 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5424 let buffer_snapshot = buffer.snapshot();
5425 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5426 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5427 probe
5428 .0
5429 .start
5430 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5431 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5432 }) {
5433 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5434 Some(())
5435 } else {
5436 None
5437 }
5438 }
5439
5440 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5441 self.manipulate_lines(cx, |lines| lines.reverse())
5442 }
5443
5444 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5445 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5446 }
5447
5448 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5449 where
5450 Fn: FnMut(&mut Vec<&str>),
5451 {
5452 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5453 let buffer = self.buffer.read(cx).snapshot(cx);
5454
5455 let mut edits = Vec::new();
5456
5457 let selections = self.selections.all::<Point>(cx);
5458 let mut selections = selections.iter().peekable();
5459 let mut contiguous_row_selections = Vec::new();
5460 let mut new_selections = Vec::new();
5461 let mut added_lines = 0;
5462 let mut removed_lines = 0;
5463
5464 while let Some(selection) = selections.next() {
5465 let (start_row, end_row) = consume_contiguous_rows(
5466 &mut contiguous_row_selections,
5467 selection,
5468 &display_map,
5469 &mut selections,
5470 );
5471
5472 let start_point = Point::new(start_row.0, 0);
5473 let end_point = Point::new(
5474 end_row.previous_row().0,
5475 buffer.line_len(end_row.previous_row()),
5476 );
5477 let text = buffer
5478 .text_for_range(start_point..end_point)
5479 .collect::<String>();
5480
5481 let mut lines = text.split('\n').collect_vec();
5482
5483 let lines_before = lines.len();
5484 callback(&mut lines);
5485 let lines_after = lines.len();
5486
5487 edits.push((start_point..end_point, lines.join("\n")));
5488
5489 // Selections must change based on added and removed line count
5490 let start_row =
5491 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5492 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5493 new_selections.push(Selection {
5494 id: selection.id,
5495 start: start_row,
5496 end: end_row,
5497 goal: SelectionGoal::None,
5498 reversed: selection.reversed,
5499 });
5500
5501 if lines_after > lines_before {
5502 added_lines += lines_after - lines_before;
5503 } else if lines_before > lines_after {
5504 removed_lines += lines_before - lines_after;
5505 }
5506 }
5507
5508 self.transact(cx, |this, cx| {
5509 let buffer = this.buffer.update(cx, |buffer, cx| {
5510 buffer.edit(edits, None, cx);
5511 buffer.snapshot(cx)
5512 });
5513
5514 // Recalculate offsets on newly edited buffer
5515 let new_selections = new_selections
5516 .iter()
5517 .map(|s| {
5518 let start_point = Point::new(s.start.0, 0);
5519 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5520 Selection {
5521 id: s.id,
5522 start: buffer.point_to_offset(start_point),
5523 end: buffer.point_to_offset(end_point),
5524 goal: s.goal,
5525 reversed: s.reversed,
5526 }
5527 })
5528 .collect();
5529
5530 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5531 s.select(new_selections);
5532 });
5533
5534 this.request_autoscroll(Autoscroll::fit(), cx);
5535 });
5536 }
5537
5538 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5539 self.manipulate_text(cx, |text| text.to_uppercase())
5540 }
5541
5542 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5543 self.manipulate_text(cx, |text| text.to_lowercase())
5544 }
5545
5546 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5547 self.manipulate_text(cx, |text| {
5548 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5549 // https://github.com/rutrum/convert-case/issues/16
5550 text.split('\n')
5551 .map(|line| line.to_case(Case::Title))
5552 .join("\n")
5553 })
5554 }
5555
5556 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5557 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5558 }
5559
5560 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5561 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5562 }
5563
5564 pub fn convert_to_upper_camel_case(
5565 &mut self,
5566 _: &ConvertToUpperCamelCase,
5567 cx: &mut ViewContext<Self>,
5568 ) {
5569 self.manipulate_text(cx, |text| {
5570 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5571 // https://github.com/rutrum/convert-case/issues/16
5572 text.split('\n')
5573 .map(|line| line.to_case(Case::UpperCamel))
5574 .join("\n")
5575 })
5576 }
5577
5578 pub fn convert_to_lower_camel_case(
5579 &mut self,
5580 _: &ConvertToLowerCamelCase,
5581 cx: &mut ViewContext<Self>,
5582 ) {
5583 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5584 }
5585
5586 pub fn convert_to_opposite_case(
5587 &mut self,
5588 _: &ConvertToOppositeCase,
5589 cx: &mut ViewContext<Self>,
5590 ) {
5591 self.manipulate_text(cx, |text| {
5592 text.chars()
5593 .fold(String::with_capacity(text.len()), |mut t, c| {
5594 if c.is_uppercase() {
5595 t.extend(c.to_lowercase());
5596 } else {
5597 t.extend(c.to_uppercase());
5598 }
5599 t
5600 })
5601 })
5602 }
5603
5604 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5605 where
5606 Fn: FnMut(&str) -> String,
5607 {
5608 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5609 let buffer = self.buffer.read(cx).snapshot(cx);
5610
5611 let mut new_selections = Vec::new();
5612 let mut edits = Vec::new();
5613 let mut selection_adjustment = 0i32;
5614
5615 for selection in self.selections.all::<usize>(cx) {
5616 let selection_is_empty = selection.is_empty();
5617
5618 let (start, end) = if selection_is_empty {
5619 let word_range = movement::surrounding_word(
5620 &display_map,
5621 selection.start.to_display_point(&display_map),
5622 );
5623 let start = word_range.start.to_offset(&display_map, Bias::Left);
5624 let end = word_range.end.to_offset(&display_map, Bias::Left);
5625 (start, end)
5626 } else {
5627 (selection.start, selection.end)
5628 };
5629
5630 let text = buffer.text_for_range(start..end).collect::<String>();
5631 let old_length = text.len() as i32;
5632 let text = callback(&text);
5633
5634 new_selections.push(Selection {
5635 start: (start as i32 - selection_adjustment) as usize,
5636 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5637 goal: SelectionGoal::None,
5638 ..selection
5639 });
5640
5641 selection_adjustment += old_length - text.len() as i32;
5642
5643 edits.push((start..end, text));
5644 }
5645
5646 self.transact(cx, |this, cx| {
5647 this.buffer.update(cx, |buffer, cx| {
5648 buffer.edit(edits, None, cx);
5649 });
5650
5651 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5652 s.select(new_selections);
5653 });
5654
5655 this.request_autoscroll(Autoscroll::fit(), cx);
5656 });
5657 }
5658
5659 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5660 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5661 let buffer = &display_map.buffer_snapshot;
5662 let selections = self.selections.all::<Point>(cx);
5663
5664 let mut edits = Vec::new();
5665 let mut selections_iter = selections.iter().peekable();
5666 while let Some(selection) = selections_iter.next() {
5667 // Avoid duplicating the same lines twice.
5668 let mut rows = selection.spanned_rows(false, &display_map);
5669
5670 while let Some(next_selection) = selections_iter.peek() {
5671 let next_rows = next_selection.spanned_rows(false, &display_map);
5672 if next_rows.start < rows.end {
5673 rows.end = next_rows.end;
5674 selections_iter.next().unwrap();
5675 } else {
5676 break;
5677 }
5678 }
5679
5680 // Copy the text from the selected row region and splice it either at the start
5681 // or end of the region.
5682 let start = Point::new(rows.start.0, 0);
5683 let end = Point::new(
5684 rows.end.previous_row().0,
5685 buffer.line_len(rows.end.previous_row()),
5686 );
5687 let text = buffer
5688 .text_for_range(start..end)
5689 .chain(Some("\n"))
5690 .collect::<String>();
5691 let insert_location = if upwards {
5692 Point::new(rows.end.0, 0)
5693 } else {
5694 start
5695 };
5696 edits.push((insert_location..insert_location, text));
5697 }
5698
5699 self.transact(cx, |this, cx| {
5700 this.buffer.update(cx, |buffer, cx| {
5701 buffer.edit(edits, None, cx);
5702 });
5703
5704 this.request_autoscroll(Autoscroll::fit(), cx);
5705 });
5706 }
5707
5708 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5709 self.duplicate_line(true, cx);
5710 }
5711
5712 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5713 self.duplicate_line(false, cx);
5714 }
5715
5716 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5717 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5718 let buffer = self.buffer.read(cx).snapshot(cx);
5719
5720 let mut edits = Vec::new();
5721 let mut unfold_ranges = Vec::new();
5722 let mut refold_ranges = Vec::new();
5723
5724 let selections = self.selections.all::<Point>(cx);
5725 let mut selections = selections.iter().peekable();
5726 let mut contiguous_row_selections = Vec::new();
5727 let mut new_selections = Vec::new();
5728
5729 while let Some(selection) = selections.next() {
5730 // Find all the selections that span a contiguous row range
5731 let (start_row, end_row) = consume_contiguous_rows(
5732 &mut contiguous_row_selections,
5733 selection,
5734 &display_map,
5735 &mut selections,
5736 );
5737
5738 // Move the text spanned by the row range to be before the line preceding the row range
5739 if start_row.0 > 0 {
5740 let range_to_move = Point::new(
5741 start_row.previous_row().0,
5742 buffer.line_len(start_row.previous_row()),
5743 )
5744 ..Point::new(
5745 end_row.previous_row().0,
5746 buffer.line_len(end_row.previous_row()),
5747 );
5748 let insertion_point = display_map
5749 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5750 .0;
5751
5752 // Don't move lines across excerpts
5753 if buffer
5754 .excerpt_boundaries_in_range((
5755 Bound::Excluded(insertion_point),
5756 Bound::Included(range_to_move.end),
5757 ))
5758 .next()
5759 .is_none()
5760 {
5761 let text = buffer
5762 .text_for_range(range_to_move.clone())
5763 .flat_map(|s| s.chars())
5764 .skip(1)
5765 .chain(['\n'])
5766 .collect::<String>();
5767
5768 edits.push((
5769 buffer.anchor_after(range_to_move.start)
5770 ..buffer.anchor_before(range_to_move.end),
5771 String::new(),
5772 ));
5773 let insertion_anchor = buffer.anchor_after(insertion_point);
5774 edits.push((insertion_anchor..insertion_anchor, text));
5775
5776 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5777
5778 // Move selections up
5779 new_selections.extend(contiguous_row_selections.drain(..).map(
5780 |mut selection| {
5781 selection.start.row -= row_delta;
5782 selection.end.row -= row_delta;
5783 selection
5784 },
5785 ));
5786
5787 // Move folds up
5788 unfold_ranges.push(range_to_move.clone());
5789 for fold in display_map.folds_in_range(
5790 buffer.anchor_before(range_to_move.start)
5791 ..buffer.anchor_after(range_to_move.end),
5792 ) {
5793 let mut start = fold.range.start.to_point(&buffer);
5794 let mut end = fold.range.end.to_point(&buffer);
5795 start.row -= row_delta;
5796 end.row -= row_delta;
5797 refold_ranges.push((start..end, fold.text));
5798 }
5799 }
5800 }
5801
5802 // If we didn't move line(s), preserve the existing selections
5803 new_selections.append(&mut contiguous_row_selections);
5804 }
5805
5806 self.transact(cx, |this, cx| {
5807 this.unfold_ranges(unfold_ranges, true, true, cx);
5808 this.buffer.update(cx, |buffer, cx| {
5809 for (range, text) in edits {
5810 buffer.edit([(range, text)], None, cx);
5811 }
5812 });
5813 this.fold_ranges(refold_ranges, true, cx);
5814 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5815 s.select(new_selections);
5816 })
5817 });
5818 }
5819
5820 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5821 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5822 let buffer = self.buffer.read(cx).snapshot(cx);
5823
5824 let mut edits = Vec::new();
5825 let mut unfold_ranges = Vec::new();
5826 let mut refold_ranges = Vec::new();
5827
5828 let selections = self.selections.all::<Point>(cx);
5829 let mut selections = selections.iter().peekable();
5830 let mut contiguous_row_selections = Vec::new();
5831 let mut new_selections = Vec::new();
5832
5833 while let Some(selection) = selections.next() {
5834 // Find all the selections that span a contiguous row range
5835 let (start_row, end_row) = consume_contiguous_rows(
5836 &mut contiguous_row_selections,
5837 selection,
5838 &display_map,
5839 &mut selections,
5840 );
5841
5842 // Move the text spanned by the row range to be after the last line of the row range
5843 if end_row.0 <= buffer.max_point().row {
5844 let range_to_move =
5845 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5846 let insertion_point = display_map
5847 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5848 .0;
5849
5850 // Don't move lines across excerpt boundaries
5851 if buffer
5852 .excerpt_boundaries_in_range((
5853 Bound::Excluded(range_to_move.start),
5854 Bound::Included(insertion_point),
5855 ))
5856 .next()
5857 .is_none()
5858 {
5859 let mut text = String::from("\n");
5860 text.extend(buffer.text_for_range(range_to_move.clone()));
5861 text.pop(); // Drop trailing newline
5862 edits.push((
5863 buffer.anchor_after(range_to_move.start)
5864 ..buffer.anchor_before(range_to_move.end),
5865 String::new(),
5866 ));
5867 let insertion_anchor = buffer.anchor_after(insertion_point);
5868 edits.push((insertion_anchor..insertion_anchor, text));
5869
5870 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5871
5872 // Move selections down
5873 new_selections.extend(contiguous_row_selections.drain(..).map(
5874 |mut selection| {
5875 selection.start.row += row_delta;
5876 selection.end.row += row_delta;
5877 selection
5878 },
5879 ));
5880
5881 // Move folds down
5882 unfold_ranges.push(range_to_move.clone());
5883 for fold in display_map.folds_in_range(
5884 buffer.anchor_before(range_to_move.start)
5885 ..buffer.anchor_after(range_to_move.end),
5886 ) {
5887 let mut start = fold.range.start.to_point(&buffer);
5888 let mut end = fold.range.end.to_point(&buffer);
5889 start.row += row_delta;
5890 end.row += row_delta;
5891 refold_ranges.push((start..end, fold.text));
5892 }
5893 }
5894 }
5895
5896 // If we didn't move line(s), preserve the existing selections
5897 new_selections.append(&mut contiguous_row_selections);
5898 }
5899
5900 self.transact(cx, |this, cx| {
5901 this.unfold_ranges(unfold_ranges, true, true, cx);
5902 this.buffer.update(cx, |buffer, cx| {
5903 for (range, text) in edits {
5904 buffer.edit([(range, text)], None, cx);
5905 }
5906 });
5907 this.fold_ranges(refold_ranges, true, cx);
5908 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5909 });
5910 }
5911
5912 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5913 let text_layout_details = &self.text_layout_details(cx);
5914 self.transact(cx, |this, cx| {
5915 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5916 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5917 let line_mode = s.line_mode;
5918 s.move_with(|display_map, selection| {
5919 if !selection.is_empty() || line_mode {
5920 return;
5921 }
5922
5923 let mut head = selection.head();
5924 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5925 if head.column() == display_map.line_len(head.row()) {
5926 transpose_offset = display_map
5927 .buffer_snapshot
5928 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5929 }
5930
5931 if transpose_offset == 0 {
5932 return;
5933 }
5934
5935 *head.column_mut() += 1;
5936 head = display_map.clip_point(head, Bias::Right);
5937 let goal = SelectionGoal::HorizontalPosition(
5938 display_map
5939 .x_for_display_point(head, &text_layout_details)
5940 .into(),
5941 );
5942 selection.collapse_to(head, goal);
5943
5944 let transpose_start = display_map
5945 .buffer_snapshot
5946 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5947 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5948 let transpose_end = display_map
5949 .buffer_snapshot
5950 .clip_offset(transpose_offset + 1, Bias::Right);
5951 if let Some(ch) =
5952 display_map.buffer_snapshot.chars_at(transpose_start).next()
5953 {
5954 edits.push((transpose_start..transpose_offset, String::new()));
5955 edits.push((transpose_end..transpose_end, ch.to_string()));
5956 }
5957 }
5958 });
5959 edits
5960 });
5961 this.buffer
5962 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5963 let selections = this.selections.all::<usize>(cx);
5964 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5965 s.select(selections);
5966 });
5967 });
5968 }
5969
5970 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5971 let mut text = String::new();
5972 let buffer = self.buffer.read(cx).snapshot(cx);
5973 let mut selections = self.selections.all::<Point>(cx);
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 &mut selections {
5979 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5980 if is_entire_line {
5981 selection.start = Point::new(selection.start.row, 0);
5982 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5983 selection.goal = SelectionGoal::None;
5984 }
5985 if is_first {
5986 is_first = false;
5987 } else {
5988 text += "\n";
5989 }
5990 let mut len = 0;
5991 for chunk in buffer.text_for_range(selection.start..selection.end) {
5992 text.push_str(chunk);
5993 len += chunk.len();
5994 }
5995 clipboard_selections.push(ClipboardSelection {
5996 len,
5997 is_entire_line,
5998 first_line_indent: buffer
5999 .indent_size_for_line(MultiBufferRow(selection.start.row))
6000 .len,
6001 });
6002 }
6003 }
6004
6005 self.transact(cx, |this, cx| {
6006 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6007 s.select(selections);
6008 });
6009 this.insert("", cx);
6010 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6011 });
6012 }
6013
6014 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6015 let selections = self.selections.all::<Point>(cx);
6016 let buffer = self.buffer.read(cx).read(cx);
6017 let mut text = String::new();
6018
6019 let mut clipboard_selections = Vec::with_capacity(selections.len());
6020 {
6021 let max_point = buffer.max_point();
6022 let mut is_first = true;
6023 for selection in selections.iter() {
6024 let mut start = selection.start;
6025 let mut end = selection.end;
6026 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6027 if is_entire_line {
6028 start = Point::new(start.row, 0);
6029 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6030 }
6031 if is_first {
6032 is_first = false;
6033 } else {
6034 text += "\n";
6035 }
6036 let mut len = 0;
6037 for chunk in buffer.text_for_range(start..end) {
6038 text.push_str(chunk);
6039 len += chunk.len();
6040 }
6041 clipboard_selections.push(ClipboardSelection {
6042 len,
6043 is_entire_line,
6044 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6045 });
6046 }
6047 }
6048
6049 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6050 }
6051
6052 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6053 if self.read_only(cx) {
6054 return;
6055 }
6056
6057 self.transact(cx, |this, cx| {
6058 if let Some(item) = cx.read_from_clipboard() {
6059 let clipboard_text = Cow::Borrowed(item.text());
6060 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6061 let old_selections = this.selections.all::<usize>(cx);
6062 let all_selections_were_entire_line =
6063 clipboard_selections.iter().all(|s| s.is_entire_line);
6064 let first_selection_indent_column =
6065 clipboard_selections.first().map(|s| s.first_line_indent);
6066 if clipboard_selections.len() != old_selections.len() {
6067 clipboard_selections.drain(..);
6068 }
6069
6070 this.buffer.update(cx, |buffer, cx| {
6071 let snapshot = buffer.read(cx);
6072 let mut start_offset = 0;
6073 let mut edits = Vec::new();
6074 let mut original_indent_columns = Vec::new();
6075 let line_mode = this.selections.line_mode;
6076 for (ix, selection) in old_selections.iter().enumerate() {
6077 let to_insert;
6078 let entire_line;
6079 let original_indent_column;
6080 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6081 let end_offset = start_offset + clipboard_selection.len;
6082 to_insert = &clipboard_text[start_offset..end_offset];
6083 entire_line = clipboard_selection.is_entire_line;
6084 start_offset = end_offset + 1;
6085 original_indent_column =
6086 Some(clipboard_selection.first_line_indent);
6087 } else {
6088 to_insert = clipboard_text.as_str();
6089 entire_line = all_selections_were_entire_line;
6090 original_indent_column = first_selection_indent_column
6091 }
6092
6093 // If the corresponding selection was empty when this slice of the
6094 // clipboard text was written, then the entire line containing the
6095 // selection was copied. If this selection is also currently empty,
6096 // then paste the line before the current line of the buffer.
6097 let range = if selection.is_empty() && !line_mode && entire_line {
6098 let column = selection.start.to_point(&snapshot).column as usize;
6099 let line_start = selection.start - column;
6100 line_start..line_start
6101 } else {
6102 selection.range()
6103 };
6104
6105 edits.push((range, to_insert));
6106 original_indent_columns.extend(original_indent_column);
6107 }
6108 drop(snapshot);
6109
6110 buffer.edit(
6111 edits,
6112 Some(AutoindentMode::Block {
6113 original_indent_columns,
6114 }),
6115 cx,
6116 );
6117 });
6118
6119 let selections = this.selections.all::<usize>(cx);
6120 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6121 } else {
6122 this.insert(&clipboard_text, cx);
6123 }
6124 }
6125 });
6126 }
6127
6128 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6129 if self.read_only(cx) {
6130 return;
6131 }
6132
6133 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6134 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6135 self.change_selections(None, cx, |s| {
6136 s.select_anchors(selections.to_vec());
6137 });
6138 }
6139 self.request_autoscroll(Autoscroll::fit(), cx);
6140 self.unmark_text(cx);
6141 self.refresh_inline_completion(true, cx);
6142 cx.emit(EditorEvent::Edited);
6143 cx.emit(EditorEvent::TransactionUndone {
6144 transaction_id: tx_id,
6145 });
6146 }
6147 }
6148
6149 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6150 if self.read_only(cx) {
6151 return;
6152 }
6153
6154 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6155 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6156 {
6157 self.change_selections(None, cx, |s| {
6158 s.select_anchors(selections.to_vec());
6159 });
6160 }
6161 self.request_autoscroll(Autoscroll::fit(), cx);
6162 self.unmark_text(cx);
6163 self.refresh_inline_completion(true, cx);
6164 cx.emit(EditorEvent::Edited);
6165 }
6166 }
6167
6168 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6169 self.buffer
6170 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6171 }
6172
6173 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6174 self.buffer
6175 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6176 }
6177
6178 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6179 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6180 let line_mode = s.line_mode;
6181 s.move_with(|map, selection| {
6182 let cursor = if selection.is_empty() && !line_mode {
6183 movement::left(map, selection.start)
6184 } else {
6185 selection.start
6186 };
6187 selection.collapse_to(cursor, SelectionGoal::None);
6188 });
6189 })
6190 }
6191
6192 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6193 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6194 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6195 })
6196 }
6197
6198 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6199 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6200 let line_mode = s.line_mode;
6201 s.move_with(|map, selection| {
6202 let cursor = if selection.is_empty() && !line_mode {
6203 movement::right(map, selection.end)
6204 } else {
6205 selection.end
6206 };
6207 selection.collapse_to(cursor, SelectionGoal::None)
6208 });
6209 })
6210 }
6211
6212 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6213 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6214 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6215 })
6216 }
6217
6218 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6219 if self.take_rename(true, cx).is_some() {
6220 return;
6221 }
6222
6223 if matches!(self.mode, EditorMode::SingleLine) {
6224 cx.propagate();
6225 return;
6226 }
6227
6228 let text_layout_details = &self.text_layout_details(cx);
6229
6230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6231 let line_mode = s.line_mode;
6232 s.move_with(|map, selection| {
6233 if !selection.is_empty() && !line_mode {
6234 selection.goal = SelectionGoal::None;
6235 }
6236 let (cursor, goal) = movement::up(
6237 map,
6238 selection.start,
6239 selection.goal,
6240 false,
6241 &text_layout_details,
6242 );
6243 selection.collapse_to(cursor, goal);
6244 });
6245 })
6246 }
6247
6248 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6249 if self.take_rename(true, cx).is_some() {
6250 return;
6251 }
6252
6253 if matches!(self.mode, EditorMode::SingleLine) {
6254 cx.propagate();
6255 return;
6256 }
6257
6258 let text_layout_details = &self.text_layout_details(cx);
6259
6260 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6261 let line_mode = s.line_mode;
6262 s.move_with(|map, selection| {
6263 if !selection.is_empty() && !line_mode {
6264 selection.goal = SelectionGoal::None;
6265 }
6266 let (cursor, goal) = movement::up_by_rows(
6267 map,
6268 selection.start,
6269 action.lines,
6270 selection.goal,
6271 false,
6272 &text_layout_details,
6273 );
6274 selection.collapse_to(cursor, goal);
6275 });
6276 })
6277 }
6278
6279 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6280 if self.take_rename(true, cx).is_some() {
6281 return;
6282 }
6283
6284 if matches!(self.mode, EditorMode::SingleLine) {
6285 cx.propagate();
6286 return;
6287 }
6288
6289 let text_layout_details = &self.text_layout_details(cx);
6290
6291 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6292 let line_mode = s.line_mode;
6293 s.move_with(|map, selection| {
6294 if !selection.is_empty() && !line_mode {
6295 selection.goal = SelectionGoal::None;
6296 }
6297 let (cursor, goal) = movement::down_by_rows(
6298 map,
6299 selection.start,
6300 action.lines,
6301 selection.goal,
6302 false,
6303 &text_layout_details,
6304 );
6305 selection.collapse_to(cursor, goal);
6306 });
6307 })
6308 }
6309
6310 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6311 let text_layout_details = &self.text_layout_details(cx);
6312 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6313 s.move_heads_with(|map, head, goal| {
6314 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6315 })
6316 })
6317 }
6318
6319 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6320 let text_layout_details = &self.text_layout_details(cx);
6321 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6322 s.move_heads_with(|map, head, goal| {
6323 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6324 })
6325 })
6326 }
6327
6328 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6329 if self.take_rename(true, cx).is_some() {
6330 return;
6331 }
6332
6333 if matches!(self.mode, EditorMode::SingleLine) {
6334 cx.propagate();
6335 return;
6336 }
6337
6338 let row_count = if let Some(row_count) = self.visible_line_count() {
6339 row_count as u32 - 1
6340 } else {
6341 return;
6342 };
6343
6344 let autoscroll = if action.center_cursor {
6345 Autoscroll::center()
6346 } else {
6347 Autoscroll::fit()
6348 };
6349
6350 let text_layout_details = &self.text_layout_details(cx);
6351
6352 self.change_selections(Some(autoscroll), cx, |s| {
6353 let line_mode = s.line_mode;
6354 s.move_with(|map, selection| {
6355 if !selection.is_empty() && !line_mode {
6356 selection.goal = SelectionGoal::None;
6357 }
6358 let (cursor, goal) = movement::up_by_rows(
6359 map,
6360 selection.end,
6361 row_count,
6362 selection.goal,
6363 false,
6364 &text_layout_details,
6365 );
6366 selection.collapse_to(cursor, goal);
6367 });
6368 });
6369 }
6370
6371 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6372 let text_layout_details = &self.text_layout_details(cx);
6373 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6374 s.move_heads_with(|map, head, goal| {
6375 movement::up(map, head, goal, false, &text_layout_details)
6376 })
6377 })
6378 }
6379
6380 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6381 self.take_rename(true, cx);
6382
6383 if self.mode == EditorMode::SingleLine {
6384 cx.propagate();
6385 return;
6386 }
6387
6388 let text_layout_details = &self.text_layout_details(cx);
6389 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6390 let line_mode = s.line_mode;
6391 s.move_with(|map, selection| {
6392 if !selection.is_empty() && !line_mode {
6393 selection.goal = SelectionGoal::None;
6394 }
6395 let (cursor, goal) = movement::down(
6396 map,
6397 selection.end,
6398 selection.goal,
6399 false,
6400 &text_layout_details,
6401 );
6402 selection.collapse_to(cursor, goal);
6403 });
6404 });
6405 }
6406
6407 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6408 if self.take_rename(true, cx).is_some() {
6409 return;
6410 }
6411
6412 if self
6413 .context_menu
6414 .write()
6415 .as_mut()
6416 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6417 .unwrap_or(false)
6418 {
6419 return;
6420 }
6421
6422 if matches!(self.mode, EditorMode::SingleLine) {
6423 cx.propagate();
6424 return;
6425 }
6426
6427 let row_count = if let Some(row_count) = self.visible_line_count() {
6428 row_count as u32 - 1
6429 } else {
6430 return;
6431 };
6432
6433 let autoscroll = if action.center_cursor {
6434 Autoscroll::center()
6435 } else {
6436 Autoscroll::fit()
6437 };
6438
6439 let text_layout_details = &self.text_layout_details(cx);
6440 self.change_selections(Some(autoscroll), cx, |s| {
6441 let line_mode = s.line_mode;
6442 s.move_with(|map, selection| {
6443 if !selection.is_empty() && !line_mode {
6444 selection.goal = SelectionGoal::None;
6445 }
6446 let (cursor, goal) = movement::down_by_rows(
6447 map,
6448 selection.end,
6449 row_count,
6450 selection.goal,
6451 false,
6452 &text_layout_details,
6453 );
6454 selection.collapse_to(cursor, goal);
6455 });
6456 });
6457 }
6458
6459 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6460 let text_layout_details = &self.text_layout_details(cx);
6461 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6462 s.move_heads_with(|map, head, goal| {
6463 movement::down(map, head, goal, false, &text_layout_details)
6464 })
6465 });
6466 }
6467
6468 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6469 if let Some(context_menu) = self.context_menu.write().as_mut() {
6470 context_menu.select_first(self.project.as_ref(), cx);
6471 }
6472 }
6473
6474 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6475 if let Some(context_menu) = self.context_menu.write().as_mut() {
6476 context_menu.select_prev(self.project.as_ref(), cx);
6477 }
6478 }
6479
6480 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6481 if let Some(context_menu) = self.context_menu.write().as_mut() {
6482 context_menu.select_next(self.project.as_ref(), cx);
6483 }
6484 }
6485
6486 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6487 if let Some(context_menu) = self.context_menu.write().as_mut() {
6488 context_menu.select_last(self.project.as_ref(), cx);
6489 }
6490 }
6491
6492 pub fn move_to_previous_word_start(
6493 &mut self,
6494 _: &MoveToPreviousWordStart,
6495 cx: &mut ViewContext<Self>,
6496 ) {
6497 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6498 s.move_cursors_with(|map, head, _| {
6499 (
6500 movement::previous_word_start(map, head),
6501 SelectionGoal::None,
6502 )
6503 });
6504 })
6505 }
6506
6507 pub fn move_to_previous_subword_start(
6508 &mut self,
6509 _: &MoveToPreviousSubwordStart,
6510 cx: &mut ViewContext<Self>,
6511 ) {
6512 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6513 s.move_cursors_with(|map, head, _| {
6514 (
6515 movement::previous_subword_start(map, head),
6516 SelectionGoal::None,
6517 )
6518 });
6519 })
6520 }
6521
6522 pub fn select_to_previous_word_start(
6523 &mut self,
6524 _: &SelectToPreviousWordStart,
6525 cx: &mut ViewContext<Self>,
6526 ) {
6527 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6528 s.move_heads_with(|map, head, _| {
6529 (
6530 movement::previous_word_start(map, head),
6531 SelectionGoal::None,
6532 )
6533 });
6534 })
6535 }
6536
6537 pub fn select_to_previous_subword_start(
6538 &mut self,
6539 _: &SelectToPreviousSubwordStart,
6540 cx: &mut ViewContext<Self>,
6541 ) {
6542 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6543 s.move_heads_with(|map, head, _| {
6544 (
6545 movement::previous_subword_start(map, head),
6546 SelectionGoal::None,
6547 )
6548 });
6549 })
6550 }
6551
6552 pub fn delete_to_previous_word_start(
6553 &mut self,
6554 _: &DeleteToPreviousWordStart,
6555 cx: &mut ViewContext<Self>,
6556 ) {
6557 self.transact(cx, |this, cx| {
6558 this.select_autoclose_pair(cx);
6559 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6560 let line_mode = s.line_mode;
6561 s.move_with(|map, selection| {
6562 if selection.is_empty() && !line_mode {
6563 let cursor = movement::previous_word_start(map, selection.head());
6564 selection.set_head(cursor, SelectionGoal::None);
6565 }
6566 });
6567 });
6568 this.insert("", cx);
6569 });
6570 }
6571
6572 pub fn delete_to_previous_subword_start(
6573 &mut self,
6574 _: &DeleteToPreviousSubwordStart,
6575 cx: &mut ViewContext<Self>,
6576 ) {
6577 self.transact(cx, |this, cx| {
6578 this.select_autoclose_pair(cx);
6579 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6580 let line_mode = s.line_mode;
6581 s.move_with(|map, selection| {
6582 if selection.is_empty() && !line_mode {
6583 let cursor = movement::previous_subword_start(map, selection.head());
6584 selection.set_head(cursor, SelectionGoal::None);
6585 }
6586 });
6587 });
6588 this.insert("", cx);
6589 });
6590 }
6591
6592 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6593 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6594 s.move_cursors_with(|map, head, _| {
6595 (movement::next_word_end(map, head), SelectionGoal::None)
6596 });
6597 })
6598 }
6599
6600 pub fn move_to_next_subword_end(
6601 &mut self,
6602 _: &MoveToNextSubwordEnd,
6603 cx: &mut ViewContext<Self>,
6604 ) {
6605 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6606 s.move_cursors_with(|map, head, _| {
6607 (movement::next_subword_end(map, head), SelectionGoal::None)
6608 });
6609 })
6610 }
6611
6612 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6613 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6614 s.move_heads_with(|map, head, _| {
6615 (movement::next_word_end(map, head), SelectionGoal::None)
6616 });
6617 })
6618 }
6619
6620 pub fn select_to_next_subword_end(
6621 &mut self,
6622 _: &SelectToNextSubwordEnd,
6623 cx: &mut ViewContext<Self>,
6624 ) {
6625 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6626 s.move_heads_with(|map, head, _| {
6627 (movement::next_subword_end(map, head), SelectionGoal::None)
6628 });
6629 })
6630 }
6631
6632 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6633 self.transact(cx, |this, cx| {
6634 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6635 let line_mode = s.line_mode;
6636 s.move_with(|map, selection| {
6637 if selection.is_empty() && !line_mode {
6638 let cursor = movement::next_word_end(map, selection.head());
6639 selection.set_head(cursor, SelectionGoal::None);
6640 }
6641 });
6642 });
6643 this.insert("", cx);
6644 });
6645 }
6646
6647 pub fn delete_to_next_subword_end(
6648 &mut self,
6649 _: &DeleteToNextSubwordEnd,
6650 cx: &mut ViewContext<Self>,
6651 ) {
6652 self.transact(cx, |this, cx| {
6653 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6654 s.move_with(|map, selection| {
6655 if selection.is_empty() {
6656 let cursor = movement::next_subword_end(map, selection.head());
6657 selection.set_head(cursor, SelectionGoal::None);
6658 }
6659 });
6660 });
6661 this.insert("", cx);
6662 });
6663 }
6664
6665 pub fn move_to_beginning_of_line(
6666 &mut self,
6667 action: &MoveToBeginningOfLine,
6668 cx: &mut ViewContext<Self>,
6669 ) {
6670 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6671 s.move_cursors_with(|map, head, _| {
6672 (
6673 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6674 SelectionGoal::None,
6675 )
6676 });
6677 })
6678 }
6679
6680 pub fn select_to_beginning_of_line(
6681 &mut self,
6682 action: &SelectToBeginningOfLine,
6683 cx: &mut ViewContext<Self>,
6684 ) {
6685 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6686 s.move_heads_with(|map, head, _| {
6687 (
6688 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6689 SelectionGoal::None,
6690 )
6691 });
6692 });
6693 }
6694
6695 pub fn delete_to_beginning_of_line(
6696 &mut self,
6697 _: &DeleteToBeginningOfLine,
6698 cx: &mut ViewContext<Self>,
6699 ) {
6700 self.transact(cx, |this, cx| {
6701 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6702 s.move_with(|_, selection| {
6703 selection.reversed = true;
6704 });
6705 });
6706
6707 this.select_to_beginning_of_line(
6708 &SelectToBeginningOfLine {
6709 stop_at_soft_wraps: false,
6710 },
6711 cx,
6712 );
6713 this.backspace(&Backspace, cx);
6714 });
6715 }
6716
6717 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6718 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6719 s.move_cursors_with(|map, head, _| {
6720 (
6721 movement::line_end(map, head, action.stop_at_soft_wraps),
6722 SelectionGoal::None,
6723 )
6724 });
6725 })
6726 }
6727
6728 pub fn select_to_end_of_line(
6729 &mut self,
6730 action: &SelectToEndOfLine,
6731 cx: &mut ViewContext<Self>,
6732 ) {
6733 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6734 s.move_heads_with(|map, head, _| {
6735 (
6736 movement::line_end(map, head, action.stop_at_soft_wraps),
6737 SelectionGoal::None,
6738 )
6739 });
6740 })
6741 }
6742
6743 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6744 self.transact(cx, |this, cx| {
6745 this.select_to_end_of_line(
6746 &SelectToEndOfLine {
6747 stop_at_soft_wraps: false,
6748 },
6749 cx,
6750 );
6751 this.delete(&Delete, cx);
6752 });
6753 }
6754
6755 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6756 self.transact(cx, |this, cx| {
6757 this.select_to_end_of_line(
6758 &SelectToEndOfLine {
6759 stop_at_soft_wraps: false,
6760 },
6761 cx,
6762 );
6763 this.cut(&Cut, cx);
6764 });
6765 }
6766
6767 pub fn move_to_start_of_paragraph(
6768 &mut self,
6769 _: &MoveToStartOfParagraph,
6770 cx: &mut ViewContext<Self>,
6771 ) {
6772 if matches!(self.mode, EditorMode::SingleLine) {
6773 cx.propagate();
6774 return;
6775 }
6776
6777 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6778 s.move_with(|map, selection| {
6779 selection.collapse_to(
6780 movement::start_of_paragraph(map, selection.head(), 1),
6781 SelectionGoal::None,
6782 )
6783 });
6784 })
6785 }
6786
6787 pub fn move_to_end_of_paragraph(
6788 &mut self,
6789 _: &MoveToEndOfParagraph,
6790 cx: &mut ViewContext<Self>,
6791 ) {
6792 if matches!(self.mode, EditorMode::SingleLine) {
6793 cx.propagate();
6794 return;
6795 }
6796
6797 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6798 s.move_with(|map, selection| {
6799 selection.collapse_to(
6800 movement::end_of_paragraph(map, selection.head(), 1),
6801 SelectionGoal::None,
6802 )
6803 });
6804 })
6805 }
6806
6807 pub fn select_to_start_of_paragraph(
6808 &mut self,
6809 _: &SelectToStartOfParagraph,
6810 cx: &mut ViewContext<Self>,
6811 ) {
6812 if matches!(self.mode, EditorMode::SingleLine) {
6813 cx.propagate();
6814 return;
6815 }
6816
6817 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6818 s.move_heads_with(|map, head, _| {
6819 (
6820 movement::start_of_paragraph(map, head, 1),
6821 SelectionGoal::None,
6822 )
6823 });
6824 })
6825 }
6826
6827 pub fn select_to_end_of_paragraph(
6828 &mut self,
6829 _: &SelectToEndOfParagraph,
6830 cx: &mut ViewContext<Self>,
6831 ) {
6832 if matches!(self.mode, EditorMode::SingleLine) {
6833 cx.propagate();
6834 return;
6835 }
6836
6837 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6838 s.move_heads_with(|map, head, _| {
6839 (
6840 movement::end_of_paragraph(map, head, 1),
6841 SelectionGoal::None,
6842 )
6843 });
6844 })
6845 }
6846
6847 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6848 if matches!(self.mode, EditorMode::SingleLine) {
6849 cx.propagate();
6850 return;
6851 }
6852
6853 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6854 s.select_ranges(vec![0..0]);
6855 });
6856 }
6857
6858 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6859 let mut selection = self.selections.last::<Point>(cx);
6860 selection.set_head(Point::zero(), SelectionGoal::None);
6861
6862 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6863 s.select(vec![selection]);
6864 });
6865 }
6866
6867 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6868 if matches!(self.mode, EditorMode::SingleLine) {
6869 cx.propagate();
6870 return;
6871 }
6872
6873 let cursor = self.buffer.read(cx).read(cx).len();
6874 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6875 s.select_ranges(vec![cursor..cursor])
6876 });
6877 }
6878
6879 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6880 self.nav_history = nav_history;
6881 }
6882
6883 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6884 self.nav_history.as_ref()
6885 }
6886
6887 fn push_to_nav_history(
6888 &mut self,
6889 cursor_anchor: Anchor,
6890 new_position: Option<Point>,
6891 cx: &mut ViewContext<Self>,
6892 ) {
6893 if let Some(nav_history) = self.nav_history.as_mut() {
6894 let buffer = self.buffer.read(cx).read(cx);
6895 let cursor_position = cursor_anchor.to_point(&buffer);
6896 let scroll_state = self.scroll_manager.anchor();
6897 let scroll_top_row = scroll_state.top_row(&buffer);
6898 drop(buffer);
6899
6900 if let Some(new_position) = new_position {
6901 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6902 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6903 return;
6904 }
6905 }
6906
6907 nav_history.push(
6908 Some(NavigationData {
6909 cursor_anchor,
6910 cursor_position,
6911 scroll_anchor: scroll_state,
6912 scroll_top_row,
6913 }),
6914 cx,
6915 );
6916 }
6917 }
6918
6919 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6920 let buffer = self.buffer.read(cx).snapshot(cx);
6921 let mut selection = self.selections.first::<usize>(cx);
6922 selection.set_head(buffer.len(), SelectionGoal::None);
6923 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6924 s.select(vec![selection]);
6925 });
6926 }
6927
6928 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6929 let end = self.buffer.read(cx).read(cx).len();
6930 self.change_selections(None, cx, |s| {
6931 s.select_ranges(vec![0..end]);
6932 });
6933 }
6934
6935 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6936 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6937 let mut selections = self.selections.all::<Point>(cx);
6938 let max_point = display_map.buffer_snapshot.max_point();
6939 for selection in &mut selections {
6940 let rows = selection.spanned_rows(true, &display_map);
6941 selection.start = Point::new(rows.start.0, 0);
6942 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
6943 selection.reversed = false;
6944 }
6945 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6946 s.select(selections);
6947 });
6948 }
6949
6950 pub fn split_selection_into_lines(
6951 &mut self,
6952 _: &SplitSelectionIntoLines,
6953 cx: &mut ViewContext<Self>,
6954 ) {
6955 let mut to_unfold = Vec::new();
6956 let mut new_selection_ranges = Vec::new();
6957 {
6958 let selections = self.selections.all::<Point>(cx);
6959 let buffer = self.buffer.read(cx).read(cx);
6960 for selection in selections {
6961 for row in selection.start.row..selection.end.row {
6962 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
6963 new_selection_ranges.push(cursor..cursor);
6964 }
6965 new_selection_ranges.push(selection.end..selection.end);
6966 to_unfold.push(selection.start..selection.end);
6967 }
6968 }
6969 self.unfold_ranges(to_unfold, true, true, cx);
6970 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6971 s.select_ranges(new_selection_ranges);
6972 });
6973 }
6974
6975 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6976 self.add_selection(true, cx);
6977 }
6978
6979 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6980 self.add_selection(false, cx);
6981 }
6982
6983 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6984 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6985 let mut selections = self.selections.all::<Point>(cx);
6986 let text_layout_details = self.text_layout_details(cx);
6987 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6988 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6989 let range = oldest_selection.display_range(&display_map).sorted();
6990
6991 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6992 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6993 let positions = start_x.min(end_x)..start_x.max(end_x);
6994
6995 selections.clear();
6996 let mut stack = Vec::new();
6997 for row in range.start.row().0..=range.end.row().0 {
6998 if let Some(selection) = self.selections.build_columnar_selection(
6999 &display_map,
7000 DisplayRow(row),
7001 &positions,
7002 oldest_selection.reversed,
7003 &text_layout_details,
7004 ) {
7005 stack.push(selection.id);
7006 selections.push(selection);
7007 }
7008 }
7009
7010 if above {
7011 stack.reverse();
7012 }
7013
7014 AddSelectionsState { above, stack }
7015 });
7016
7017 let last_added_selection = *state.stack.last().unwrap();
7018 let mut new_selections = Vec::new();
7019 if above == state.above {
7020 let end_row = if above {
7021 DisplayRow(0)
7022 } else {
7023 display_map.max_point().row()
7024 };
7025
7026 'outer: for selection in selections {
7027 if selection.id == last_added_selection {
7028 let range = selection.display_range(&display_map).sorted();
7029 debug_assert_eq!(range.start.row(), range.end.row());
7030 let mut row = range.start.row();
7031 let positions =
7032 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7033 px(start)..px(end)
7034 } else {
7035 let start_x =
7036 display_map.x_for_display_point(range.start, &text_layout_details);
7037 let end_x =
7038 display_map.x_for_display_point(range.end, &text_layout_details);
7039 start_x.min(end_x)..start_x.max(end_x)
7040 };
7041
7042 while row != end_row {
7043 if above {
7044 row.0 -= 1;
7045 } else {
7046 row.0 += 1;
7047 }
7048
7049 if let Some(new_selection) = self.selections.build_columnar_selection(
7050 &display_map,
7051 row,
7052 &positions,
7053 selection.reversed,
7054 &text_layout_details,
7055 ) {
7056 state.stack.push(new_selection.id);
7057 if above {
7058 new_selections.push(new_selection);
7059 new_selections.push(selection);
7060 } else {
7061 new_selections.push(selection);
7062 new_selections.push(new_selection);
7063 }
7064
7065 continue 'outer;
7066 }
7067 }
7068 }
7069
7070 new_selections.push(selection);
7071 }
7072 } else {
7073 new_selections = selections;
7074 new_selections.retain(|s| s.id != last_added_selection);
7075 state.stack.pop();
7076 }
7077
7078 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7079 s.select(new_selections);
7080 });
7081 if state.stack.len() > 1 {
7082 self.add_selections_state = Some(state);
7083 }
7084 }
7085
7086 pub fn select_next_match_internal(
7087 &mut self,
7088 display_map: &DisplaySnapshot,
7089 replace_newest: bool,
7090 autoscroll: Option<Autoscroll>,
7091 cx: &mut ViewContext<Self>,
7092 ) -> Result<()> {
7093 fn select_next_match_ranges(
7094 this: &mut Editor,
7095 range: Range<usize>,
7096 replace_newest: bool,
7097 auto_scroll: Option<Autoscroll>,
7098 cx: &mut ViewContext<Editor>,
7099 ) {
7100 this.unfold_ranges([range.clone()], false, true, cx);
7101 this.change_selections(auto_scroll, cx, |s| {
7102 if replace_newest {
7103 s.delete(s.newest_anchor().id);
7104 }
7105 s.insert_range(range.clone());
7106 });
7107 }
7108
7109 let buffer = &display_map.buffer_snapshot;
7110 let mut selections = self.selections.all::<usize>(cx);
7111 if let Some(mut select_next_state) = self.select_next_state.take() {
7112 let query = &select_next_state.query;
7113 if !select_next_state.done {
7114 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7115 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7116 let mut next_selected_range = None;
7117
7118 let bytes_after_last_selection =
7119 buffer.bytes_in_range(last_selection.end..buffer.len());
7120 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7121 let query_matches = query
7122 .stream_find_iter(bytes_after_last_selection)
7123 .map(|result| (last_selection.end, result))
7124 .chain(
7125 query
7126 .stream_find_iter(bytes_before_first_selection)
7127 .map(|result| (0, result)),
7128 );
7129
7130 for (start_offset, query_match) in query_matches {
7131 let query_match = query_match.unwrap(); // can only fail due to I/O
7132 let offset_range =
7133 start_offset + query_match.start()..start_offset + query_match.end();
7134 let display_range = offset_range.start.to_display_point(&display_map)
7135 ..offset_range.end.to_display_point(&display_map);
7136
7137 if !select_next_state.wordwise
7138 || (!movement::is_inside_word(&display_map, display_range.start)
7139 && !movement::is_inside_word(&display_map, display_range.end))
7140 {
7141 // TODO: This is n^2, because we might check all the selections
7142 if !selections
7143 .iter()
7144 .any(|selection| selection.range().overlaps(&offset_range))
7145 {
7146 next_selected_range = Some(offset_range);
7147 break;
7148 }
7149 }
7150 }
7151
7152 if let Some(next_selected_range) = next_selected_range {
7153 select_next_match_ranges(
7154 self,
7155 next_selected_range,
7156 replace_newest,
7157 autoscroll,
7158 cx,
7159 );
7160 } else {
7161 select_next_state.done = true;
7162 }
7163 }
7164
7165 self.select_next_state = Some(select_next_state);
7166 } else {
7167 let mut only_carets = true;
7168 let mut same_text_selected = true;
7169 let mut selected_text = None;
7170
7171 let mut selections_iter = selections.iter().peekable();
7172 while let Some(selection) = selections_iter.next() {
7173 if selection.start != selection.end {
7174 only_carets = false;
7175 }
7176
7177 if same_text_selected {
7178 if selected_text.is_none() {
7179 selected_text =
7180 Some(buffer.text_for_range(selection.range()).collect::<String>());
7181 }
7182
7183 if let Some(next_selection) = selections_iter.peek() {
7184 if next_selection.range().len() == selection.range().len() {
7185 let next_selected_text = buffer
7186 .text_for_range(next_selection.range())
7187 .collect::<String>();
7188 if Some(next_selected_text) != selected_text {
7189 same_text_selected = false;
7190 selected_text = None;
7191 }
7192 } else {
7193 same_text_selected = false;
7194 selected_text = None;
7195 }
7196 }
7197 }
7198 }
7199
7200 if only_carets {
7201 for selection in &mut selections {
7202 let word_range = movement::surrounding_word(
7203 &display_map,
7204 selection.start.to_display_point(&display_map),
7205 );
7206 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7207 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7208 selection.goal = SelectionGoal::None;
7209 selection.reversed = false;
7210 select_next_match_ranges(
7211 self,
7212 selection.start..selection.end,
7213 replace_newest,
7214 autoscroll,
7215 cx,
7216 );
7217 }
7218
7219 if selections.len() == 1 {
7220 let selection = selections
7221 .last()
7222 .expect("ensured that there's only one selection");
7223 let query = buffer
7224 .text_for_range(selection.start..selection.end)
7225 .collect::<String>();
7226 let is_empty = query.is_empty();
7227 let select_state = SelectNextState {
7228 query: AhoCorasick::new(&[query])?,
7229 wordwise: true,
7230 done: is_empty,
7231 };
7232 self.select_next_state = Some(select_state);
7233 } else {
7234 self.select_next_state = None;
7235 }
7236 } else if let Some(selected_text) = selected_text {
7237 self.select_next_state = Some(SelectNextState {
7238 query: AhoCorasick::new(&[selected_text])?,
7239 wordwise: false,
7240 done: false,
7241 });
7242 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7243 }
7244 }
7245 Ok(())
7246 }
7247
7248 pub fn select_all_matches(
7249 &mut self,
7250 _action: &SelectAllMatches,
7251 cx: &mut ViewContext<Self>,
7252 ) -> Result<()> {
7253 self.push_to_selection_history();
7254 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7255
7256 self.select_next_match_internal(&display_map, false, None, cx)?;
7257 let Some(select_next_state) = self.select_next_state.as_mut() else {
7258 return Ok(());
7259 };
7260 if select_next_state.done {
7261 return Ok(());
7262 }
7263
7264 let mut new_selections = self.selections.all::<usize>(cx);
7265
7266 let buffer = &display_map.buffer_snapshot;
7267 let query_matches = select_next_state
7268 .query
7269 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7270
7271 for query_match in query_matches {
7272 let query_match = query_match.unwrap(); // can only fail due to I/O
7273 let offset_range = query_match.start()..query_match.end();
7274 let display_range = offset_range.start.to_display_point(&display_map)
7275 ..offset_range.end.to_display_point(&display_map);
7276
7277 if !select_next_state.wordwise
7278 || (!movement::is_inside_word(&display_map, display_range.start)
7279 && !movement::is_inside_word(&display_map, display_range.end))
7280 {
7281 self.selections.change_with(cx, |selections| {
7282 new_selections.push(Selection {
7283 id: selections.new_selection_id(),
7284 start: offset_range.start,
7285 end: offset_range.end,
7286 reversed: false,
7287 goal: SelectionGoal::None,
7288 });
7289 });
7290 }
7291 }
7292
7293 new_selections.sort_by_key(|selection| selection.start);
7294 let mut ix = 0;
7295 while ix + 1 < new_selections.len() {
7296 let current_selection = &new_selections[ix];
7297 let next_selection = &new_selections[ix + 1];
7298 if current_selection.range().overlaps(&next_selection.range()) {
7299 if current_selection.id < next_selection.id {
7300 new_selections.remove(ix + 1);
7301 } else {
7302 new_selections.remove(ix);
7303 }
7304 } else {
7305 ix += 1;
7306 }
7307 }
7308
7309 select_next_state.done = true;
7310 self.unfold_ranges(
7311 new_selections.iter().map(|selection| selection.range()),
7312 false,
7313 false,
7314 cx,
7315 );
7316 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7317 selections.select(new_selections)
7318 });
7319
7320 Ok(())
7321 }
7322
7323 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7324 self.push_to_selection_history();
7325 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7326 self.select_next_match_internal(
7327 &display_map,
7328 action.replace_newest,
7329 Some(Autoscroll::newest()),
7330 cx,
7331 )?;
7332 Ok(())
7333 }
7334
7335 pub fn select_previous(
7336 &mut self,
7337 action: &SelectPrevious,
7338 cx: &mut ViewContext<Self>,
7339 ) -> Result<()> {
7340 self.push_to_selection_history();
7341 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7342 let buffer = &display_map.buffer_snapshot;
7343 let mut selections = self.selections.all::<usize>(cx);
7344 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7345 let query = &select_prev_state.query;
7346 if !select_prev_state.done {
7347 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7348 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7349 let mut next_selected_range = None;
7350 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7351 let bytes_before_last_selection =
7352 buffer.reversed_bytes_in_range(0..last_selection.start);
7353 let bytes_after_first_selection =
7354 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7355 let query_matches = query
7356 .stream_find_iter(bytes_before_last_selection)
7357 .map(|result| (last_selection.start, result))
7358 .chain(
7359 query
7360 .stream_find_iter(bytes_after_first_selection)
7361 .map(|result| (buffer.len(), result)),
7362 );
7363 for (end_offset, query_match) in query_matches {
7364 let query_match = query_match.unwrap(); // can only fail due to I/O
7365 let offset_range =
7366 end_offset - query_match.end()..end_offset - query_match.start();
7367 let display_range = offset_range.start.to_display_point(&display_map)
7368 ..offset_range.end.to_display_point(&display_map);
7369
7370 if !select_prev_state.wordwise
7371 || (!movement::is_inside_word(&display_map, display_range.start)
7372 && !movement::is_inside_word(&display_map, display_range.end))
7373 {
7374 next_selected_range = Some(offset_range);
7375 break;
7376 }
7377 }
7378
7379 if let Some(next_selected_range) = next_selected_range {
7380 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7381 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7382 if action.replace_newest {
7383 s.delete(s.newest_anchor().id);
7384 }
7385 s.insert_range(next_selected_range);
7386 });
7387 } else {
7388 select_prev_state.done = true;
7389 }
7390 }
7391
7392 self.select_prev_state = Some(select_prev_state);
7393 } else {
7394 let mut only_carets = true;
7395 let mut same_text_selected = true;
7396 let mut selected_text = None;
7397
7398 let mut selections_iter = selections.iter().peekable();
7399 while let Some(selection) = selections_iter.next() {
7400 if selection.start != selection.end {
7401 only_carets = false;
7402 }
7403
7404 if same_text_selected {
7405 if selected_text.is_none() {
7406 selected_text =
7407 Some(buffer.text_for_range(selection.range()).collect::<String>());
7408 }
7409
7410 if let Some(next_selection) = selections_iter.peek() {
7411 if next_selection.range().len() == selection.range().len() {
7412 let next_selected_text = buffer
7413 .text_for_range(next_selection.range())
7414 .collect::<String>();
7415 if Some(next_selected_text) != selected_text {
7416 same_text_selected = false;
7417 selected_text = None;
7418 }
7419 } else {
7420 same_text_selected = false;
7421 selected_text = None;
7422 }
7423 }
7424 }
7425 }
7426
7427 if only_carets {
7428 for selection in &mut selections {
7429 let word_range = movement::surrounding_word(
7430 &display_map,
7431 selection.start.to_display_point(&display_map),
7432 );
7433 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7434 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7435 selection.goal = SelectionGoal::None;
7436 selection.reversed = false;
7437 }
7438 if selections.len() == 1 {
7439 let selection = selections
7440 .last()
7441 .expect("ensured that there's only one selection");
7442 let query = buffer
7443 .text_for_range(selection.start..selection.end)
7444 .collect::<String>();
7445 let is_empty = query.is_empty();
7446 let select_state = SelectNextState {
7447 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7448 wordwise: true,
7449 done: is_empty,
7450 };
7451 self.select_prev_state = Some(select_state);
7452 } else {
7453 self.select_prev_state = None;
7454 }
7455
7456 self.unfold_ranges(
7457 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7458 false,
7459 true,
7460 cx,
7461 );
7462 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7463 s.select(selections);
7464 });
7465 } else if let Some(selected_text) = selected_text {
7466 self.select_prev_state = Some(SelectNextState {
7467 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7468 wordwise: false,
7469 done: false,
7470 });
7471 self.select_previous(action, cx)?;
7472 }
7473 }
7474 Ok(())
7475 }
7476
7477 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7478 let text_layout_details = &self.text_layout_details(cx);
7479 self.transact(cx, |this, cx| {
7480 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7481 let mut edits = Vec::new();
7482 let mut selection_edit_ranges = Vec::new();
7483 let mut last_toggled_row = None;
7484 let snapshot = this.buffer.read(cx).read(cx);
7485 let empty_str: Arc<str> = "".into();
7486 let mut suffixes_inserted = Vec::new();
7487
7488 fn comment_prefix_range(
7489 snapshot: &MultiBufferSnapshot,
7490 row: MultiBufferRow,
7491 comment_prefix: &str,
7492 comment_prefix_whitespace: &str,
7493 ) -> Range<Point> {
7494 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7495
7496 let mut line_bytes = snapshot
7497 .bytes_in_range(start..snapshot.max_point())
7498 .flatten()
7499 .copied();
7500
7501 // If this line currently begins with the line comment prefix, then record
7502 // the range containing the prefix.
7503 if line_bytes
7504 .by_ref()
7505 .take(comment_prefix.len())
7506 .eq(comment_prefix.bytes())
7507 {
7508 // Include any whitespace that matches the comment prefix.
7509 let matching_whitespace_len = line_bytes
7510 .zip(comment_prefix_whitespace.bytes())
7511 .take_while(|(a, b)| a == b)
7512 .count() as u32;
7513 let end = Point::new(
7514 start.row,
7515 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7516 );
7517 start..end
7518 } else {
7519 start..start
7520 }
7521 }
7522
7523 fn comment_suffix_range(
7524 snapshot: &MultiBufferSnapshot,
7525 row: MultiBufferRow,
7526 comment_suffix: &str,
7527 comment_suffix_has_leading_space: bool,
7528 ) -> Range<Point> {
7529 let end = Point::new(row.0, snapshot.line_len(row));
7530 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7531
7532 let mut line_end_bytes = snapshot
7533 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7534 .flatten()
7535 .copied();
7536
7537 let leading_space_len = if suffix_start_column > 0
7538 && line_end_bytes.next() == Some(b' ')
7539 && comment_suffix_has_leading_space
7540 {
7541 1
7542 } else {
7543 0
7544 };
7545
7546 // If this line currently begins with the line comment prefix, then record
7547 // the range containing the prefix.
7548 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7549 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7550 start..end
7551 } else {
7552 end..end
7553 }
7554 }
7555
7556 // TODO: Handle selections that cross excerpts
7557 for selection in &mut selections {
7558 let start_column = snapshot
7559 .indent_size_for_line(MultiBufferRow(selection.start.row))
7560 .len;
7561 let language = if let Some(language) =
7562 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7563 {
7564 language
7565 } else {
7566 continue;
7567 };
7568
7569 selection_edit_ranges.clear();
7570
7571 // If multiple selections contain a given row, avoid processing that
7572 // row more than once.
7573 let mut start_row = MultiBufferRow(selection.start.row);
7574 if last_toggled_row == Some(start_row) {
7575 start_row = start_row.next_row();
7576 }
7577 let end_row =
7578 if selection.end.row > selection.start.row && selection.end.column == 0 {
7579 MultiBufferRow(selection.end.row - 1)
7580 } else {
7581 MultiBufferRow(selection.end.row)
7582 };
7583 last_toggled_row = Some(end_row);
7584
7585 if start_row > end_row {
7586 continue;
7587 }
7588
7589 // If the language has line comments, toggle those.
7590 let full_comment_prefixes = language.line_comment_prefixes();
7591 if !full_comment_prefixes.is_empty() {
7592 let first_prefix = full_comment_prefixes
7593 .first()
7594 .expect("prefixes is non-empty");
7595 let prefix_trimmed_lengths = full_comment_prefixes
7596 .iter()
7597 .map(|p| p.trim_end_matches(' ').len())
7598 .collect::<SmallVec<[usize; 4]>>();
7599
7600 let mut all_selection_lines_are_comments = true;
7601
7602 for row in start_row.0..=end_row.0 {
7603 let row = MultiBufferRow(row);
7604 if start_row < end_row && snapshot.is_line_blank(row) {
7605 continue;
7606 }
7607
7608 let prefix_range = full_comment_prefixes
7609 .iter()
7610 .zip(prefix_trimmed_lengths.iter().copied())
7611 .map(|(prefix, trimmed_prefix_len)| {
7612 comment_prefix_range(
7613 snapshot.deref(),
7614 row,
7615 &prefix[..trimmed_prefix_len],
7616 &prefix[trimmed_prefix_len..],
7617 )
7618 })
7619 .max_by_key(|range| range.end.column - range.start.column)
7620 .expect("prefixes is non-empty");
7621
7622 if prefix_range.is_empty() {
7623 all_selection_lines_are_comments = false;
7624 }
7625
7626 selection_edit_ranges.push(prefix_range);
7627 }
7628
7629 if all_selection_lines_are_comments {
7630 edits.extend(
7631 selection_edit_ranges
7632 .iter()
7633 .cloned()
7634 .map(|range| (range, empty_str.clone())),
7635 );
7636 } else {
7637 let min_column = selection_edit_ranges
7638 .iter()
7639 .map(|range| range.start.column)
7640 .min()
7641 .unwrap_or(0);
7642 edits.extend(selection_edit_ranges.iter().map(|range| {
7643 let position = Point::new(range.start.row, min_column);
7644 (position..position, first_prefix.clone())
7645 }));
7646 }
7647 } else if let Some((full_comment_prefix, comment_suffix)) =
7648 language.block_comment_delimiters()
7649 {
7650 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7651 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7652 let prefix_range = comment_prefix_range(
7653 snapshot.deref(),
7654 start_row,
7655 comment_prefix,
7656 comment_prefix_whitespace,
7657 );
7658 let suffix_range = comment_suffix_range(
7659 snapshot.deref(),
7660 end_row,
7661 comment_suffix.trim_start_matches(' '),
7662 comment_suffix.starts_with(' '),
7663 );
7664
7665 if prefix_range.is_empty() || suffix_range.is_empty() {
7666 edits.push((
7667 prefix_range.start..prefix_range.start,
7668 full_comment_prefix.clone(),
7669 ));
7670 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7671 suffixes_inserted.push((end_row, comment_suffix.len()));
7672 } else {
7673 edits.push((prefix_range, empty_str.clone()));
7674 edits.push((suffix_range, empty_str.clone()));
7675 }
7676 } else {
7677 continue;
7678 }
7679 }
7680
7681 drop(snapshot);
7682 this.buffer.update(cx, |buffer, cx| {
7683 buffer.edit(edits, None, cx);
7684 });
7685
7686 // Adjust selections so that they end before any comment suffixes that
7687 // were inserted.
7688 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7689 let mut selections = this.selections.all::<Point>(cx);
7690 let snapshot = this.buffer.read(cx).read(cx);
7691 for selection in &mut selections {
7692 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7693 match row.cmp(&MultiBufferRow(selection.end.row)) {
7694 Ordering::Less => {
7695 suffixes_inserted.next();
7696 continue;
7697 }
7698 Ordering::Greater => break,
7699 Ordering::Equal => {
7700 if selection.end.column == snapshot.line_len(row) {
7701 if selection.is_empty() {
7702 selection.start.column -= suffix_len as u32;
7703 }
7704 selection.end.column -= suffix_len as u32;
7705 }
7706 break;
7707 }
7708 }
7709 }
7710 }
7711
7712 drop(snapshot);
7713 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7714
7715 let selections = this.selections.all::<Point>(cx);
7716 let selections_on_single_row = selections.windows(2).all(|selections| {
7717 selections[0].start.row == selections[1].start.row
7718 && selections[0].end.row == selections[1].end.row
7719 && selections[0].start.row == selections[0].end.row
7720 });
7721 let selections_selecting = selections
7722 .iter()
7723 .any(|selection| selection.start != selection.end);
7724 let advance_downwards = action.advance_downwards
7725 && selections_on_single_row
7726 && !selections_selecting
7727 && this.mode != EditorMode::SingleLine;
7728
7729 if advance_downwards {
7730 let snapshot = this.buffer.read(cx).snapshot(cx);
7731
7732 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7733 s.move_cursors_with(|display_snapshot, display_point, _| {
7734 let mut point = display_point.to_point(display_snapshot);
7735 point.row += 1;
7736 point = snapshot.clip_point(point, Bias::Left);
7737 let display_point = point.to_display_point(display_snapshot);
7738 let goal = SelectionGoal::HorizontalPosition(
7739 display_snapshot
7740 .x_for_display_point(display_point, &text_layout_details)
7741 .into(),
7742 );
7743 (display_point, goal)
7744 })
7745 });
7746 }
7747 });
7748 }
7749
7750 pub fn select_larger_syntax_node(
7751 &mut self,
7752 _: &SelectLargerSyntaxNode,
7753 cx: &mut ViewContext<Self>,
7754 ) {
7755 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7756 let buffer = self.buffer.read(cx).snapshot(cx);
7757 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7758
7759 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7760 let mut selected_larger_node = false;
7761 let new_selections = old_selections
7762 .iter()
7763 .map(|selection| {
7764 let old_range = selection.start..selection.end;
7765 let mut new_range = old_range.clone();
7766 while let Some(containing_range) =
7767 buffer.range_for_syntax_ancestor(new_range.clone())
7768 {
7769 new_range = containing_range;
7770 if !display_map.intersects_fold(new_range.start)
7771 && !display_map.intersects_fold(new_range.end)
7772 {
7773 break;
7774 }
7775 }
7776
7777 selected_larger_node |= new_range != old_range;
7778 Selection {
7779 id: selection.id,
7780 start: new_range.start,
7781 end: new_range.end,
7782 goal: SelectionGoal::None,
7783 reversed: selection.reversed,
7784 }
7785 })
7786 .collect::<Vec<_>>();
7787
7788 if selected_larger_node {
7789 stack.push(old_selections);
7790 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7791 s.select(new_selections);
7792 });
7793 }
7794 self.select_larger_syntax_node_stack = stack;
7795 }
7796
7797 pub fn select_smaller_syntax_node(
7798 &mut self,
7799 _: &SelectSmallerSyntaxNode,
7800 cx: &mut ViewContext<Self>,
7801 ) {
7802 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7803 if let Some(selections) = stack.pop() {
7804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7805 s.select(selections.to_vec());
7806 });
7807 }
7808 self.select_larger_syntax_node_stack = stack;
7809 }
7810
7811 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7812 let project = self.project.clone();
7813 cx.spawn(|this, mut cx| async move {
7814 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7815 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7816 }) else {
7817 return;
7818 };
7819
7820 let Some(project) = project else {
7821 return;
7822 };
7823 if project
7824 .update(&mut cx, |this, _| this.is_remote())
7825 .unwrap_or(true)
7826 {
7827 // Do not display any test indicators in remote projects.
7828 return;
7829 }
7830 let new_rows =
7831 cx.background_executor()
7832 .spawn({
7833 let snapshot = display_snapshot.clone();
7834 async move {
7835 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7836 }
7837 })
7838 .await;
7839 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7840
7841 this.update(&mut cx, |this, _| {
7842 this.clear_tasks();
7843 for (key, value) in rows {
7844 this.insert_tasks(key, value);
7845 }
7846 })
7847 .ok();
7848 })
7849 }
7850 fn fetch_runnable_ranges(
7851 snapshot: &DisplaySnapshot,
7852 range: Range<Anchor>,
7853 ) -> Vec<language::RunnableRange> {
7854 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7855 }
7856
7857 fn runnable_rows(
7858 project: Model<Project>,
7859 snapshot: DisplaySnapshot,
7860 runnable_ranges: Vec<RunnableRange>,
7861 mut cx: AsyncWindowContext,
7862 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7863 runnable_ranges
7864 .into_iter()
7865 .filter_map(|mut runnable| {
7866 let (tasks, _) = cx
7867 .update(|cx| {
7868 Self::resolve_runnable(project.clone(), &mut runnable.runnable, cx)
7869 })
7870 .ok()?;
7871 if tasks.is_empty() {
7872 return None;
7873 }
7874
7875 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7876
7877 let row = snapshot
7878 .buffer_snapshot
7879 .buffer_line_for_row(MultiBufferRow(point.row))?
7880 .1
7881 .start
7882 .row;
7883
7884 Some((
7885 (runnable.buffer_id, row),
7886 (
7887 runnable.run_range.start,
7888 RunnableTasks {
7889 templates: tasks,
7890 column: point.column,
7891 extra_variables: runnable.extra_captures,
7892 },
7893 ),
7894 ))
7895 })
7896 .collect()
7897 }
7898
7899 fn resolve_runnable(
7900 project: Model<Project>,
7901 runnable: &mut Runnable,
7902 cx: &WindowContext<'_>,
7903 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7904 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7905 let worktree_id = project
7906 .buffer_for_id(runnable.buffer)
7907 .and_then(|buffer| buffer.read(cx).file())
7908 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7909
7910 (project.task_inventory().clone(), worktree_id)
7911 });
7912
7913 let inventory = inventory.read(cx);
7914 let tags = mem::take(&mut runnable.tags);
7915 let mut tags: Vec<_> = tags
7916 .into_iter()
7917 .flat_map(|tag| {
7918 let tag = tag.0.clone();
7919 inventory
7920 .list_tasks(Some(runnable.language.clone()), worktree_id)
7921 .into_iter()
7922 .filter(move |(_, template)| {
7923 template.tags.iter().any(|source_tag| source_tag == &tag)
7924 })
7925 })
7926 .sorted_by_key(|(kind, _)| kind.to_owned())
7927 .collect();
7928 if let Some((leading_tag_source, _)) = tags.first() {
7929 // Strongest source wins; if we have worktree tag binding, prefer that to
7930 // global and language bindings;
7931 // if we have a global binding, prefer that to language binding.
7932 let first_mismatch = tags
7933 .iter()
7934 .position(|(tag_source, _)| tag_source != leading_tag_source);
7935 if let Some(index) = first_mismatch {
7936 tags.truncate(index);
7937 }
7938 }
7939
7940 (tags, worktree_id)
7941 }
7942
7943 pub fn move_to_enclosing_bracket(
7944 &mut self,
7945 _: &MoveToEnclosingBracket,
7946 cx: &mut ViewContext<Self>,
7947 ) {
7948 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7949 s.move_offsets_with(|snapshot, selection| {
7950 let Some(enclosing_bracket_ranges) =
7951 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7952 else {
7953 return;
7954 };
7955
7956 let mut best_length = usize::MAX;
7957 let mut best_inside = false;
7958 let mut best_in_bracket_range = false;
7959 let mut best_destination = None;
7960 for (open, close) in enclosing_bracket_ranges {
7961 let close = close.to_inclusive();
7962 let length = close.end() - open.start;
7963 let inside = selection.start >= open.end && selection.end <= *close.start();
7964 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7965 || close.contains(&selection.head());
7966
7967 // If best is next to a bracket and current isn't, skip
7968 if !in_bracket_range && best_in_bracket_range {
7969 continue;
7970 }
7971
7972 // Prefer smaller lengths unless best is inside and current isn't
7973 if length > best_length && (best_inside || !inside) {
7974 continue;
7975 }
7976
7977 best_length = length;
7978 best_inside = inside;
7979 best_in_bracket_range = in_bracket_range;
7980 best_destination = Some(
7981 if close.contains(&selection.start) && close.contains(&selection.end) {
7982 if inside {
7983 open.end
7984 } else {
7985 open.start
7986 }
7987 } else {
7988 if inside {
7989 *close.start()
7990 } else {
7991 *close.end()
7992 }
7993 },
7994 );
7995 }
7996
7997 if let Some(destination) = best_destination {
7998 selection.collapse_to(destination, SelectionGoal::None);
7999 }
8000 })
8001 });
8002 }
8003
8004 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8005 self.end_selection(cx);
8006 self.selection_history.mode = SelectionHistoryMode::Undoing;
8007 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8008 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8009 self.select_next_state = entry.select_next_state;
8010 self.select_prev_state = entry.select_prev_state;
8011 self.add_selections_state = entry.add_selections_state;
8012 self.request_autoscroll(Autoscroll::newest(), cx);
8013 }
8014 self.selection_history.mode = SelectionHistoryMode::Normal;
8015 }
8016
8017 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8018 self.end_selection(cx);
8019 self.selection_history.mode = SelectionHistoryMode::Redoing;
8020 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8021 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8022 self.select_next_state = entry.select_next_state;
8023 self.select_prev_state = entry.select_prev_state;
8024 self.add_selections_state = entry.add_selections_state;
8025 self.request_autoscroll(Autoscroll::newest(), cx);
8026 }
8027 self.selection_history.mode = SelectionHistoryMode::Normal;
8028 }
8029
8030 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8031 let selections = self.selections.disjoint_anchors();
8032
8033 let lines = if action.lines == 0 { 3 } else { action.lines };
8034
8035 self.buffer.update(cx, |buffer, cx| {
8036 buffer.expand_excerpts(
8037 selections
8038 .into_iter()
8039 .map(|selection| selection.head().excerpt_id)
8040 .dedup(),
8041 lines,
8042 cx,
8043 )
8044 })
8045 }
8046
8047 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
8048 self.buffer
8049 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
8050 }
8051
8052 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8053 self.go_to_diagnostic_impl(Direction::Next, cx)
8054 }
8055
8056 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8057 self.go_to_diagnostic_impl(Direction::Prev, cx)
8058 }
8059
8060 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8061 let buffer = self.buffer.read(cx).snapshot(cx);
8062 let selection = self.selections.newest::<usize>(cx);
8063
8064 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8065 if direction == Direction::Next {
8066 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8067 let (group_id, jump_to) = popover.activation_info();
8068 if self.activate_diagnostics(group_id, cx) {
8069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8070 let mut new_selection = s.newest_anchor().clone();
8071 new_selection.collapse_to(jump_to, SelectionGoal::None);
8072 s.select_anchors(vec![new_selection.clone()]);
8073 });
8074 }
8075 return;
8076 }
8077 }
8078
8079 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8080 active_diagnostics
8081 .primary_range
8082 .to_offset(&buffer)
8083 .to_inclusive()
8084 });
8085 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8086 if active_primary_range.contains(&selection.head()) {
8087 *active_primary_range.start()
8088 } else {
8089 selection.head()
8090 }
8091 } else {
8092 selection.head()
8093 };
8094 let snapshot = self.snapshot(cx);
8095 loop {
8096 let diagnostics = if direction == Direction::Prev {
8097 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8098 } else {
8099 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8100 }
8101 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8102 let group = diagnostics
8103 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8104 // be sorted in a stable way
8105 // skip until we are at current active diagnostic, if it exists
8106 .skip_while(|entry| {
8107 (match direction {
8108 Direction::Prev => entry.range.start >= search_start,
8109 Direction::Next => entry.range.start <= search_start,
8110 }) && self
8111 .active_diagnostics
8112 .as_ref()
8113 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8114 })
8115 .find_map(|entry| {
8116 if entry.diagnostic.is_primary
8117 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8118 && !entry.range.is_empty()
8119 // if we match with the active diagnostic, skip it
8120 && Some(entry.diagnostic.group_id)
8121 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8122 {
8123 Some((entry.range, entry.diagnostic.group_id))
8124 } else {
8125 None
8126 }
8127 });
8128
8129 if let Some((primary_range, group_id)) = group {
8130 if self.activate_diagnostics(group_id, cx) {
8131 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8132 s.select(vec![Selection {
8133 id: selection.id,
8134 start: primary_range.start,
8135 end: primary_range.start,
8136 reversed: false,
8137 goal: SelectionGoal::None,
8138 }]);
8139 });
8140 }
8141 break;
8142 } else {
8143 // Cycle around to the start of the buffer, potentially moving back to the start of
8144 // the currently active diagnostic.
8145 active_primary_range.take();
8146 if direction == Direction::Prev {
8147 if search_start == buffer.len() {
8148 break;
8149 } else {
8150 search_start = buffer.len();
8151 }
8152 } else if search_start == 0 {
8153 break;
8154 } else {
8155 search_start = 0;
8156 }
8157 }
8158 }
8159 }
8160
8161 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8162 let snapshot = self
8163 .display_map
8164 .update(cx, |display_map, cx| display_map.snapshot(cx));
8165 let selection = self.selections.newest::<Point>(cx);
8166
8167 if !self.seek_in_direction(
8168 &snapshot,
8169 selection.head(),
8170 false,
8171 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8172 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8173 ),
8174 cx,
8175 ) {
8176 let wrapped_point = Point::zero();
8177 self.seek_in_direction(
8178 &snapshot,
8179 wrapped_point,
8180 true,
8181 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8182 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8183 ),
8184 cx,
8185 );
8186 }
8187 }
8188
8189 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8190 let snapshot = self
8191 .display_map
8192 .update(cx, |display_map, cx| display_map.snapshot(cx));
8193 let selection = self.selections.newest::<Point>(cx);
8194
8195 if !self.seek_in_direction(
8196 &snapshot,
8197 selection.head(),
8198 false,
8199 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8200 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8201 ),
8202 cx,
8203 ) {
8204 let wrapped_point = snapshot.buffer_snapshot.max_point();
8205 self.seek_in_direction(
8206 &snapshot,
8207 wrapped_point,
8208 true,
8209 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8210 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8211 ),
8212 cx,
8213 );
8214 }
8215 }
8216
8217 fn seek_in_direction(
8218 &mut self,
8219 snapshot: &DisplaySnapshot,
8220 initial_point: Point,
8221 is_wrapped: bool,
8222 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8223 cx: &mut ViewContext<Editor>,
8224 ) -> bool {
8225 let display_point = initial_point.to_display_point(snapshot);
8226 let mut hunks = hunks
8227 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8228 .filter(|hunk| {
8229 if is_wrapped {
8230 true
8231 } else {
8232 !hunk.contains_display_row(display_point.row())
8233 }
8234 })
8235 .dedup();
8236
8237 if let Some(hunk) = hunks.next() {
8238 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8239 let row = hunk.start_display_row();
8240 let point = DisplayPoint::new(row, 0);
8241 s.select_display_ranges([point..point]);
8242 });
8243
8244 true
8245 } else {
8246 false
8247 }
8248 }
8249
8250 pub fn go_to_definition(
8251 &mut self,
8252 _: &GoToDefinition,
8253 cx: &mut ViewContext<Self>,
8254 ) -> Task<Result<bool>> {
8255 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8256 }
8257
8258 pub fn go_to_implementation(
8259 &mut self,
8260 _: &GoToImplementation,
8261 cx: &mut ViewContext<Self>,
8262 ) -> Task<Result<bool>> {
8263 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8264 }
8265
8266 pub fn go_to_implementation_split(
8267 &mut self,
8268 _: &GoToImplementationSplit,
8269 cx: &mut ViewContext<Self>,
8270 ) -> Task<Result<bool>> {
8271 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8272 }
8273
8274 pub fn go_to_type_definition(
8275 &mut self,
8276 _: &GoToTypeDefinition,
8277 cx: &mut ViewContext<Self>,
8278 ) -> Task<Result<bool>> {
8279 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8280 }
8281
8282 pub fn go_to_definition_split(
8283 &mut self,
8284 _: &GoToDefinitionSplit,
8285 cx: &mut ViewContext<Self>,
8286 ) -> Task<Result<bool>> {
8287 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8288 }
8289
8290 pub fn go_to_type_definition_split(
8291 &mut self,
8292 _: &GoToTypeDefinitionSplit,
8293 cx: &mut ViewContext<Self>,
8294 ) -> Task<Result<bool>> {
8295 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8296 }
8297
8298 fn go_to_definition_of_kind(
8299 &mut self,
8300 kind: GotoDefinitionKind,
8301 split: bool,
8302 cx: &mut ViewContext<Self>,
8303 ) -> Task<Result<bool>> {
8304 let Some(workspace) = self.workspace() else {
8305 return Task::ready(Ok(false));
8306 };
8307 let buffer = self.buffer.read(cx);
8308 let head = self.selections.newest::<usize>(cx).head();
8309 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8310 text_anchor
8311 } else {
8312 return Task::ready(Ok(false));
8313 };
8314
8315 let project = workspace.read(cx).project().clone();
8316 let definitions = project.update(cx, |project, cx| match kind {
8317 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8318 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8319 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8320 });
8321
8322 cx.spawn(|editor, mut cx| async move {
8323 let definitions = definitions.await?;
8324 let navigated = editor
8325 .update(&mut cx, |editor, cx| {
8326 editor.navigate_to_hover_links(
8327 Some(kind),
8328 definitions
8329 .into_iter()
8330 .filter(|location| {
8331 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8332 })
8333 .map(HoverLink::Text)
8334 .collect::<Vec<_>>(),
8335 split,
8336 cx,
8337 )
8338 })?
8339 .await?;
8340 anyhow::Ok(navigated)
8341 })
8342 }
8343
8344 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8345 let position = self.selections.newest_anchor().head();
8346 let Some((buffer, buffer_position)) =
8347 self.buffer.read(cx).text_anchor_for_position(position, cx)
8348 else {
8349 return;
8350 };
8351
8352 cx.spawn(|editor, mut cx| async move {
8353 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8354 editor.update(&mut cx, |_, cx| {
8355 cx.open_url(&url);
8356 })
8357 } else {
8358 Ok(())
8359 }
8360 })
8361 .detach();
8362 }
8363
8364 pub(crate) fn navigate_to_hover_links(
8365 &mut self,
8366 kind: Option<GotoDefinitionKind>,
8367 mut definitions: Vec<HoverLink>,
8368 split: bool,
8369 cx: &mut ViewContext<Editor>,
8370 ) -> Task<Result<bool>> {
8371 // If there is one definition, just open it directly
8372 if definitions.len() == 1 {
8373 let definition = definitions.pop().unwrap();
8374 let target_task = match definition {
8375 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8376 HoverLink::InlayHint(lsp_location, server_id) => {
8377 self.compute_target_location(lsp_location, server_id, cx)
8378 }
8379 HoverLink::Url(url) => {
8380 cx.open_url(&url);
8381 Task::ready(Ok(None))
8382 }
8383 };
8384 cx.spawn(|editor, mut cx| async move {
8385 let target = target_task.await.context("target resolution task")?;
8386 if let Some(target) = target {
8387 editor.update(&mut cx, |editor, cx| {
8388 let Some(workspace) = editor.workspace() else {
8389 return false;
8390 };
8391 let pane = workspace.read(cx).active_pane().clone();
8392
8393 let range = target.range.to_offset(target.buffer.read(cx));
8394 let range = editor.range_for_match(&range);
8395
8396 /// If select range has more than one line, we
8397 /// just point the cursor to range.start.
8398 fn check_multiline_range(
8399 buffer: &Buffer,
8400 range: Range<usize>,
8401 ) -> Range<usize> {
8402 if buffer.offset_to_point(range.start).row
8403 == buffer.offset_to_point(range.end).row
8404 {
8405 range
8406 } else {
8407 range.start..range.start
8408 }
8409 }
8410
8411 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8412 let buffer = target.buffer.read(cx);
8413 let range = check_multiline_range(buffer, range);
8414 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8415 s.select_ranges([range]);
8416 });
8417 } else {
8418 cx.window_context().defer(move |cx| {
8419 let target_editor: View<Self> =
8420 workspace.update(cx, |workspace, cx| {
8421 let pane = if split {
8422 workspace.adjacent_pane(cx)
8423 } else {
8424 workspace.active_pane().clone()
8425 };
8426
8427 workspace.open_project_item(pane, target.buffer.clone(), cx)
8428 });
8429 target_editor.update(cx, |target_editor, cx| {
8430 // When selecting a definition in a different buffer, disable the nav history
8431 // to avoid creating a history entry at the previous cursor location.
8432 pane.update(cx, |pane, _| pane.disable_history());
8433 let buffer = target.buffer.read(cx);
8434 let range = check_multiline_range(buffer, range);
8435 target_editor.change_selections(
8436 Some(Autoscroll::focused()),
8437 cx,
8438 |s| {
8439 s.select_ranges([range]);
8440 },
8441 );
8442 pane.update(cx, |pane, _| pane.enable_history());
8443 });
8444 });
8445 }
8446 true
8447 })
8448 } else {
8449 Ok(false)
8450 }
8451 })
8452 } else if !definitions.is_empty() {
8453 let replica_id = self.replica_id(cx);
8454 cx.spawn(|editor, mut cx| async move {
8455 let (title, location_tasks, workspace) = editor
8456 .update(&mut cx, |editor, cx| {
8457 let tab_kind = match kind {
8458 Some(GotoDefinitionKind::Implementation) => "Implementations",
8459 _ => "Definitions",
8460 };
8461 let title = definitions
8462 .iter()
8463 .find_map(|definition| match definition {
8464 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8465 let buffer = origin.buffer.read(cx);
8466 format!(
8467 "{} for {}",
8468 tab_kind,
8469 buffer
8470 .text_for_range(origin.range.clone())
8471 .collect::<String>()
8472 )
8473 }),
8474 HoverLink::InlayHint(_, _) => None,
8475 HoverLink::Url(_) => None,
8476 })
8477 .unwrap_or(tab_kind.to_string());
8478 let location_tasks = definitions
8479 .into_iter()
8480 .map(|definition| match definition {
8481 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8482 HoverLink::InlayHint(lsp_location, server_id) => {
8483 editor.compute_target_location(lsp_location, server_id, cx)
8484 }
8485 HoverLink::Url(_) => Task::ready(Ok(None)),
8486 })
8487 .collect::<Vec<_>>();
8488 (title, location_tasks, editor.workspace().clone())
8489 })
8490 .context("location tasks preparation")?;
8491
8492 let locations = futures::future::join_all(location_tasks)
8493 .await
8494 .into_iter()
8495 .filter_map(|location| location.transpose())
8496 .collect::<Result<_>>()
8497 .context("location tasks")?;
8498
8499 let Some(workspace) = workspace else {
8500 return Ok(false);
8501 };
8502 let opened = workspace
8503 .update(&mut cx, |workspace, cx| {
8504 Self::open_locations_in_multibuffer(
8505 workspace, locations, replica_id, title, split, cx,
8506 )
8507 })
8508 .ok();
8509
8510 anyhow::Ok(opened.is_some())
8511 })
8512 } else {
8513 Task::ready(Ok(false))
8514 }
8515 }
8516
8517 fn compute_target_location(
8518 &self,
8519 lsp_location: lsp::Location,
8520 server_id: LanguageServerId,
8521 cx: &mut ViewContext<Editor>,
8522 ) -> Task<anyhow::Result<Option<Location>>> {
8523 let Some(project) = self.project.clone() else {
8524 return Task::Ready(Some(Ok(None)));
8525 };
8526
8527 cx.spawn(move |editor, mut cx| async move {
8528 let location_task = editor.update(&mut cx, |editor, cx| {
8529 project.update(cx, |project, cx| {
8530 let language_server_name =
8531 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8532 project
8533 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8534 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8535 });
8536 language_server_name.map(|language_server_name| {
8537 project.open_local_buffer_via_lsp(
8538 lsp_location.uri.clone(),
8539 server_id,
8540 language_server_name,
8541 cx,
8542 )
8543 })
8544 })
8545 })?;
8546 let location = match location_task {
8547 Some(task) => Some({
8548 let target_buffer_handle = task.await.context("open local buffer")?;
8549 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8550 let target_start = target_buffer
8551 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8552 let target_end = target_buffer
8553 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8554 target_buffer.anchor_after(target_start)
8555 ..target_buffer.anchor_before(target_end)
8556 })?;
8557 Location {
8558 buffer: target_buffer_handle,
8559 range,
8560 }
8561 }),
8562 None => None,
8563 };
8564 Ok(location)
8565 })
8566 }
8567
8568 pub fn find_all_references(
8569 &mut self,
8570 _: &FindAllReferences,
8571 cx: &mut ViewContext<Self>,
8572 ) -> Option<Task<Result<()>>> {
8573 let multi_buffer = self.buffer.read(cx);
8574 let selection = self.selections.newest::<usize>(cx);
8575 let head = selection.head();
8576
8577 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8578 let head_anchor = multi_buffer_snapshot.anchor_at(
8579 head,
8580 if head < selection.tail() {
8581 Bias::Right
8582 } else {
8583 Bias::Left
8584 },
8585 );
8586
8587 match self
8588 .find_all_references_task_sources
8589 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8590 {
8591 Ok(_) => {
8592 log::info!(
8593 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8594 );
8595 return None;
8596 }
8597 Err(i) => {
8598 self.find_all_references_task_sources.insert(i, head_anchor);
8599 }
8600 }
8601
8602 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8603 let replica_id = self.replica_id(cx);
8604 let workspace = self.workspace()?;
8605 let project = workspace.read(cx).project().clone();
8606 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8607 Some(cx.spawn(|editor, mut cx| async move {
8608 let _cleanup = defer({
8609 let mut cx = cx.clone();
8610 move || {
8611 let _ = editor.update(&mut cx, |editor, _| {
8612 if let Ok(i) =
8613 editor
8614 .find_all_references_task_sources
8615 .binary_search_by(|anchor| {
8616 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8617 })
8618 {
8619 editor.find_all_references_task_sources.remove(i);
8620 }
8621 });
8622 }
8623 });
8624
8625 let locations = references.await?;
8626 if locations.is_empty() {
8627 return anyhow::Ok(());
8628 }
8629
8630 workspace.update(&mut cx, |workspace, cx| {
8631 let title = locations
8632 .first()
8633 .as_ref()
8634 .map(|location| {
8635 let buffer = location.buffer.read(cx);
8636 format!(
8637 "References to `{}`",
8638 buffer
8639 .text_for_range(location.range.clone())
8640 .collect::<String>()
8641 )
8642 })
8643 .unwrap();
8644 Self::open_locations_in_multibuffer(
8645 workspace, locations, replica_id, title, false, cx,
8646 );
8647 })
8648 }))
8649 }
8650
8651 /// Opens a multibuffer with the given project locations in it
8652 pub fn open_locations_in_multibuffer(
8653 workspace: &mut Workspace,
8654 mut locations: Vec<Location>,
8655 replica_id: ReplicaId,
8656 title: String,
8657 split: bool,
8658 cx: &mut ViewContext<Workspace>,
8659 ) {
8660 // If there are multiple definitions, open them in a multibuffer
8661 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8662 let mut locations = locations.into_iter().peekable();
8663 let mut ranges_to_highlight = Vec::new();
8664 let capability = workspace.project().read(cx).capability();
8665
8666 let excerpt_buffer = cx.new_model(|cx| {
8667 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8668 while let Some(location) = locations.next() {
8669 let buffer = location.buffer.read(cx);
8670 let mut ranges_for_buffer = Vec::new();
8671 let range = location.range.to_offset(buffer);
8672 ranges_for_buffer.push(range.clone());
8673
8674 while let Some(next_location) = locations.peek() {
8675 if next_location.buffer == location.buffer {
8676 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8677 locations.next();
8678 } else {
8679 break;
8680 }
8681 }
8682
8683 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8684 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8685 location.buffer.clone(),
8686 ranges_for_buffer,
8687 DEFAULT_MULTIBUFFER_CONTEXT,
8688 cx,
8689 ))
8690 }
8691
8692 multibuffer.with_title(title)
8693 });
8694
8695 let editor = cx.new_view(|cx| {
8696 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8697 });
8698 editor.update(cx, |editor, cx| {
8699 editor.highlight_background::<Self>(
8700 &ranges_to_highlight,
8701 |theme| theme.editor_highlighted_line_background,
8702 cx,
8703 );
8704 });
8705
8706 let item = Box::new(editor);
8707 let item_id = item.item_id();
8708
8709 if split {
8710 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8711 } else {
8712 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8713 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8714 pane.close_current_preview_item(cx)
8715 } else {
8716 None
8717 }
8718 });
8719 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8720 }
8721 workspace.active_pane().update(cx, |pane, cx| {
8722 pane.set_preview_item_id(Some(item_id), cx);
8723 });
8724 }
8725
8726 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8727 use language::ToOffset as _;
8728
8729 let project = self.project.clone()?;
8730 let selection = self.selections.newest_anchor().clone();
8731 let (cursor_buffer, cursor_buffer_position) = self
8732 .buffer
8733 .read(cx)
8734 .text_anchor_for_position(selection.head(), cx)?;
8735 let (tail_buffer, cursor_buffer_position_end) = self
8736 .buffer
8737 .read(cx)
8738 .text_anchor_for_position(selection.tail(), cx)?;
8739 if tail_buffer != cursor_buffer {
8740 return None;
8741 }
8742
8743 let snapshot = cursor_buffer.read(cx).snapshot();
8744 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8745 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8746 let prepare_rename = project.update(cx, |project, cx| {
8747 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8748 });
8749 drop(snapshot);
8750
8751 Some(cx.spawn(|this, mut cx| async move {
8752 let rename_range = if let Some(range) = prepare_rename.await? {
8753 Some(range)
8754 } else {
8755 this.update(&mut cx, |this, cx| {
8756 let buffer = this.buffer.read(cx).snapshot(cx);
8757 let mut buffer_highlights = this
8758 .document_highlights_for_position(selection.head(), &buffer)
8759 .filter(|highlight| {
8760 highlight.start.excerpt_id == selection.head().excerpt_id
8761 && highlight.end.excerpt_id == selection.head().excerpt_id
8762 });
8763 buffer_highlights
8764 .next()
8765 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8766 })?
8767 };
8768 if let Some(rename_range) = rename_range {
8769 this.update(&mut cx, |this, cx| {
8770 let snapshot = cursor_buffer.read(cx).snapshot();
8771 let rename_buffer_range = rename_range.to_offset(&snapshot);
8772 let cursor_offset_in_rename_range =
8773 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8774 let cursor_offset_in_rename_range_end =
8775 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8776
8777 this.take_rename(false, cx);
8778 let buffer = this.buffer.read(cx).read(cx);
8779 let cursor_offset = selection.head().to_offset(&buffer);
8780 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8781 let rename_end = rename_start + rename_buffer_range.len();
8782 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8783 let mut old_highlight_id = None;
8784 let old_name: Arc<str> = buffer
8785 .chunks(rename_start..rename_end, true)
8786 .map(|chunk| {
8787 if old_highlight_id.is_none() {
8788 old_highlight_id = chunk.syntax_highlight_id;
8789 }
8790 chunk.text
8791 })
8792 .collect::<String>()
8793 .into();
8794
8795 drop(buffer);
8796
8797 // Position the selection in the rename editor so that it matches the current selection.
8798 this.show_local_selections = false;
8799 let rename_editor = cx.new_view(|cx| {
8800 let mut editor = Editor::single_line(cx);
8801 editor.buffer.update(cx, |buffer, cx| {
8802 buffer.edit([(0..0, old_name.clone())], None, cx)
8803 });
8804 let rename_selection_range = match cursor_offset_in_rename_range
8805 .cmp(&cursor_offset_in_rename_range_end)
8806 {
8807 Ordering::Equal => {
8808 editor.select_all(&SelectAll, cx);
8809 return editor;
8810 }
8811 Ordering::Less => {
8812 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8813 }
8814 Ordering::Greater => {
8815 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8816 }
8817 };
8818 if rename_selection_range.end > old_name.len() {
8819 editor.select_all(&SelectAll, cx);
8820 } else {
8821 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8822 s.select_ranges([rename_selection_range]);
8823 });
8824 }
8825 editor
8826 });
8827
8828 let write_highlights =
8829 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8830 let read_highlights =
8831 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8832 let ranges = write_highlights
8833 .iter()
8834 .flat_map(|(_, ranges)| ranges.iter())
8835 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8836 .cloned()
8837 .collect();
8838
8839 this.highlight_text::<Rename>(
8840 ranges,
8841 HighlightStyle {
8842 fade_out: Some(0.6),
8843 ..Default::default()
8844 },
8845 cx,
8846 );
8847 let rename_focus_handle = rename_editor.focus_handle(cx);
8848 cx.focus(&rename_focus_handle);
8849 let block_id = this.insert_blocks(
8850 [BlockProperties {
8851 style: BlockStyle::Flex,
8852 position: range.start,
8853 height: 1,
8854 render: Box::new({
8855 let rename_editor = rename_editor.clone();
8856 move |cx: &mut BlockContext| {
8857 let mut text_style = cx.editor_style.text.clone();
8858 if let Some(highlight_style) = old_highlight_id
8859 .and_then(|h| h.style(&cx.editor_style.syntax))
8860 {
8861 text_style = text_style.highlight(highlight_style);
8862 }
8863 div()
8864 .pl(cx.anchor_x)
8865 .child(EditorElement::new(
8866 &rename_editor,
8867 EditorStyle {
8868 background: cx.theme().system().transparent,
8869 local_player: cx.editor_style.local_player,
8870 text: text_style,
8871 scrollbar_width: cx.editor_style.scrollbar_width,
8872 syntax: cx.editor_style.syntax.clone(),
8873 status: cx.editor_style.status.clone(),
8874 inlay_hints_style: HighlightStyle {
8875 color: Some(cx.theme().status().hint),
8876 font_weight: Some(FontWeight::BOLD),
8877 ..HighlightStyle::default()
8878 },
8879 suggestions_style: HighlightStyle {
8880 color: Some(cx.theme().status().predictive),
8881 ..HighlightStyle::default()
8882 },
8883 },
8884 ))
8885 .into_any_element()
8886 }
8887 }),
8888 disposition: BlockDisposition::Below,
8889 }],
8890 Some(Autoscroll::fit()),
8891 cx,
8892 )[0];
8893 this.pending_rename = Some(RenameState {
8894 range,
8895 old_name,
8896 editor: rename_editor,
8897 block_id,
8898 });
8899 })?;
8900 }
8901
8902 Ok(())
8903 }))
8904 }
8905
8906 pub fn confirm_rename(
8907 &mut self,
8908 _: &ConfirmRename,
8909 cx: &mut ViewContext<Self>,
8910 ) -> Option<Task<Result<()>>> {
8911 let rename = self.take_rename(false, cx)?;
8912 let workspace = self.workspace()?;
8913 let (start_buffer, start) = self
8914 .buffer
8915 .read(cx)
8916 .text_anchor_for_position(rename.range.start, cx)?;
8917 let (end_buffer, end) = self
8918 .buffer
8919 .read(cx)
8920 .text_anchor_for_position(rename.range.end, cx)?;
8921 if start_buffer != end_buffer {
8922 return None;
8923 }
8924
8925 let buffer = start_buffer;
8926 let range = start..end;
8927 let old_name = rename.old_name;
8928 let new_name = rename.editor.read(cx).text(cx);
8929
8930 let rename = workspace
8931 .read(cx)
8932 .project()
8933 .clone()
8934 .update(cx, |project, cx| {
8935 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8936 });
8937 let workspace = workspace.downgrade();
8938
8939 Some(cx.spawn(|editor, mut cx| async move {
8940 let project_transaction = rename.await?;
8941 Self::open_project_transaction(
8942 &editor,
8943 workspace,
8944 project_transaction,
8945 format!("Rename: {} → {}", old_name, new_name),
8946 cx.clone(),
8947 )
8948 .await?;
8949
8950 editor.update(&mut cx, |editor, cx| {
8951 editor.refresh_document_highlights(cx);
8952 })?;
8953 Ok(())
8954 }))
8955 }
8956
8957 fn take_rename(
8958 &mut self,
8959 moving_cursor: bool,
8960 cx: &mut ViewContext<Self>,
8961 ) -> Option<RenameState> {
8962 let rename = self.pending_rename.take()?;
8963 if rename.editor.focus_handle(cx).is_focused(cx) {
8964 cx.focus(&self.focus_handle);
8965 }
8966
8967 self.remove_blocks(
8968 [rename.block_id].into_iter().collect(),
8969 Some(Autoscroll::fit()),
8970 cx,
8971 );
8972 self.clear_highlights::<Rename>(cx);
8973 self.show_local_selections = true;
8974
8975 if moving_cursor {
8976 let rename_editor = rename.editor.read(cx);
8977 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8978
8979 // Update the selection to match the position of the selection inside
8980 // the rename editor.
8981 let snapshot = self.buffer.read(cx).read(cx);
8982 let rename_range = rename.range.to_offset(&snapshot);
8983 let cursor_in_editor = snapshot
8984 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8985 .min(rename_range.end);
8986 drop(snapshot);
8987
8988 self.change_selections(None, cx, |s| {
8989 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8990 });
8991 } else {
8992 self.refresh_document_highlights(cx);
8993 }
8994
8995 Some(rename)
8996 }
8997
8998 pub fn pending_rename(&self) -> Option<&RenameState> {
8999 self.pending_rename.as_ref()
9000 }
9001
9002 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9003 let project = match &self.project {
9004 Some(project) => project.clone(),
9005 None => return None,
9006 };
9007
9008 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9009 }
9010
9011 fn perform_format(
9012 &mut self,
9013 project: Model<Project>,
9014 trigger: FormatTrigger,
9015 cx: &mut ViewContext<Self>,
9016 ) -> Task<Result<()>> {
9017 let buffer = self.buffer().clone();
9018 let mut buffers = buffer.read(cx).all_buffers();
9019 if trigger == FormatTrigger::Save {
9020 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9021 }
9022
9023 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9024 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9025
9026 cx.spawn(|_, mut cx| async move {
9027 let transaction = futures::select_biased! {
9028 () = timeout => {
9029 log::warn!("timed out waiting for formatting");
9030 None
9031 }
9032 transaction = format.log_err().fuse() => transaction,
9033 };
9034
9035 buffer
9036 .update(&mut cx, |buffer, cx| {
9037 if let Some(transaction) = transaction {
9038 if !buffer.is_singleton() {
9039 buffer.push_transaction(&transaction.0, cx);
9040 }
9041 }
9042
9043 cx.notify();
9044 })
9045 .ok();
9046
9047 Ok(())
9048 })
9049 }
9050
9051 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9052 if let Some(project) = self.project.clone() {
9053 self.buffer.update(cx, |multi_buffer, cx| {
9054 project.update(cx, |project, cx| {
9055 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9056 });
9057 })
9058 }
9059 }
9060
9061 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9062 cx.show_character_palette();
9063 }
9064
9065 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9066 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9067 let buffer = self.buffer.read(cx).snapshot(cx);
9068 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9069 let is_valid = buffer
9070 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9071 .any(|entry| {
9072 entry.diagnostic.is_primary
9073 && !entry.range.is_empty()
9074 && entry.range.start == primary_range_start
9075 && entry.diagnostic.message == active_diagnostics.primary_message
9076 });
9077
9078 if is_valid != active_diagnostics.is_valid {
9079 active_diagnostics.is_valid = is_valid;
9080 let mut new_styles = HashMap::default();
9081 for (block_id, diagnostic) in &active_diagnostics.blocks {
9082 new_styles.insert(
9083 *block_id,
9084 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9085 );
9086 }
9087 self.display_map
9088 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9089 }
9090 }
9091 }
9092
9093 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9094 self.dismiss_diagnostics(cx);
9095 let snapshot = self.snapshot(cx);
9096 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9097 let buffer = self.buffer.read(cx).snapshot(cx);
9098
9099 let mut primary_range = None;
9100 let mut primary_message = None;
9101 let mut group_end = Point::zero();
9102 let diagnostic_group = buffer
9103 .diagnostic_group::<MultiBufferPoint>(group_id)
9104 .filter_map(|entry| {
9105 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9106 && (entry.range.start.row == entry.range.end.row
9107 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9108 {
9109 return None;
9110 }
9111 if entry.range.end > group_end {
9112 group_end = entry.range.end;
9113 }
9114 if entry.diagnostic.is_primary {
9115 primary_range = Some(entry.range.clone());
9116 primary_message = Some(entry.diagnostic.message.clone());
9117 }
9118 Some(entry)
9119 })
9120 .collect::<Vec<_>>();
9121 let primary_range = primary_range?;
9122 let primary_message = primary_message?;
9123 let primary_range =
9124 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9125
9126 let blocks = display_map
9127 .insert_blocks(
9128 diagnostic_group.iter().map(|entry| {
9129 let diagnostic = entry.diagnostic.clone();
9130 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9131 BlockProperties {
9132 style: BlockStyle::Fixed,
9133 position: buffer.anchor_after(entry.range.start),
9134 height: message_height,
9135 render: diagnostic_block_renderer(diagnostic, true),
9136 disposition: BlockDisposition::Below,
9137 }
9138 }),
9139 cx,
9140 )
9141 .into_iter()
9142 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9143 .collect();
9144
9145 Some(ActiveDiagnosticGroup {
9146 primary_range,
9147 primary_message,
9148 group_id,
9149 blocks,
9150 is_valid: true,
9151 })
9152 });
9153 self.active_diagnostics.is_some()
9154 }
9155
9156 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9157 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9158 self.display_map.update(cx, |display_map, cx| {
9159 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9160 });
9161 cx.notify();
9162 }
9163 }
9164
9165 pub fn set_selections_from_remote(
9166 &mut self,
9167 selections: Vec<Selection<Anchor>>,
9168 pending_selection: Option<Selection<Anchor>>,
9169 cx: &mut ViewContext<Self>,
9170 ) {
9171 let old_cursor_position = self.selections.newest_anchor().head();
9172 self.selections.change_with(cx, |s| {
9173 s.select_anchors(selections);
9174 if let Some(pending_selection) = pending_selection {
9175 s.set_pending(pending_selection, SelectMode::Character);
9176 } else {
9177 s.clear_pending();
9178 }
9179 });
9180 self.selections_did_change(false, &old_cursor_position, true, cx);
9181 }
9182
9183 fn push_to_selection_history(&mut self) {
9184 self.selection_history.push(SelectionHistoryEntry {
9185 selections: self.selections.disjoint_anchors(),
9186 select_next_state: self.select_next_state.clone(),
9187 select_prev_state: self.select_prev_state.clone(),
9188 add_selections_state: self.add_selections_state.clone(),
9189 });
9190 }
9191
9192 pub fn transact(
9193 &mut self,
9194 cx: &mut ViewContext<Self>,
9195 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9196 ) -> Option<TransactionId> {
9197 self.start_transaction_at(Instant::now(), cx);
9198 update(self, cx);
9199 self.end_transaction_at(Instant::now(), cx)
9200 }
9201
9202 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9203 self.end_selection(cx);
9204 if let Some(tx_id) = self
9205 .buffer
9206 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9207 {
9208 self.selection_history
9209 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9210 cx.emit(EditorEvent::TransactionBegun {
9211 transaction_id: tx_id,
9212 })
9213 }
9214 }
9215
9216 fn end_transaction_at(
9217 &mut self,
9218 now: Instant,
9219 cx: &mut ViewContext<Self>,
9220 ) -> Option<TransactionId> {
9221 if let Some(tx_id) = self
9222 .buffer
9223 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9224 {
9225 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9226 *end_selections = Some(self.selections.disjoint_anchors());
9227 } else {
9228 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9229 }
9230
9231 cx.emit(EditorEvent::Edited);
9232 Some(tx_id)
9233 } else {
9234 None
9235 }
9236 }
9237
9238 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9239 let mut fold_ranges = Vec::new();
9240
9241 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9242
9243 let selections = self.selections.all_adjusted(cx);
9244 for selection in selections {
9245 let range = selection.range().sorted();
9246 let buffer_start_row = range.start.row;
9247
9248 for row in (0..=range.end.row).rev() {
9249 if let Some((foldable_range, fold_text)) =
9250 display_map.foldable_range(MultiBufferRow(row))
9251 {
9252 if foldable_range.end.row >= buffer_start_row {
9253 fold_ranges.push((foldable_range, fold_text));
9254 if row <= range.start.row {
9255 break;
9256 }
9257 }
9258 }
9259 }
9260 }
9261
9262 self.fold_ranges(fold_ranges, true, cx);
9263 }
9264
9265 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9266 let buffer_row = fold_at.buffer_row;
9267 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9268
9269 if let Some((fold_range, fold_text)) = display_map.foldable_range(buffer_row) {
9270 let autoscroll = self
9271 .selections
9272 .all::<Point>(cx)
9273 .iter()
9274 .any(|selection| fold_range.overlaps(&selection.range()));
9275
9276 self.fold_ranges([(fold_range, fold_text)], autoscroll, cx);
9277 }
9278 }
9279
9280 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9281 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9282 let buffer = &display_map.buffer_snapshot;
9283 let selections = self.selections.all::<Point>(cx);
9284 let ranges = selections
9285 .iter()
9286 .map(|s| {
9287 let range = s.display_range(&display_map).sorted();
9288 let mut start = range.start.to_point(&display_map);
9289 let mut end = range.end.to_point(&display_map);
9290 start.column = 0;
9291 end.column = buffer.line_len(MultiBufferRow(end.row));
9292 start..end
9293 })
9294 .collect::<Vec<_>>();
9295
9296 self.unfold_ranges(ranges, true, true, cx);
9297 }
9298
9299 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9300 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9301
9302 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9303 ..Point::new(
9304 unfold_at.buffer_row.0,
9305 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9306 );
9307
9308 let autoscroll = self
9309 .selections
9310 .all::<Point>(cx)
9311 .iter()
9312 .any(|selection| selection.range().overlaps(&intersection_range));
9313
9314 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9315 }
9316
9317 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9318 let selections = self.selections.all::<Point>(cx);
9319 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9320 let line_mode = self.selections.line_mode;
9321 let ranges = selections.into_iter().map(|s| {
9322 if line_mode {
9323 let start = Point::new(s.start.row, 0);
9324 let end = Point::new(
9325 s.end.row,
9326 display_map
9327 .buffer_snapshot
9328 .line_len(MultiBufferRow(s.end.row)),
9329 );
9330 (start..end, "⋯")
9331 } else {
9332 (s.start..s.end, "⋯")
9333 }
9334 });
9335 self.fold_ranges(ranges, true, cx);
9336 }
9337
9338 pub fn fold_ranges<T: ToOffset + Clone>(
9339 &mut self,
9340 ranges: impl IntoIterator<Item = (Range<T>, &'static str)>,
9341 auto_scroll: bool,
9342 cx: &mut ViewContext<Self>,
9343 ) {
9344 let mut fold_ranges = Vec::new();
9345 let mut buffers_affected = HashMap::default();
9346 let multi_buffer = self.buffer().read(cx);
9347 for (fold_range, fold_text) in ranges {
9348 if let Some((_, buffer, _)) =
9349 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9350 {
9351 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9352 };
9353 fold_ranges.push((fold_range, fold_text));
9354 }
9355
9356 let mut ranges = fold_ranges.into_iter().peekable();
9357 if ranges.peek().is_some() {
9358 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9359
9360 if auto_scroll {
9361 self.request_autoscroll(Autoscroll::fit(), cx);
9362 }
9363
9364 for buffer in buffers_affected.into_values() {
9365 self.sync_expanded_diff_hunks(buffer, cx);
9366 }
9367
9368 cx.notify();
9369
9370 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9371 // Clear diagnostics block when folding a range that contains it.
9372 let snapshot = self.snapshot(cx);
9373 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9374 drop(snapshot);
9375 self.active_diagnostics = Some(active_diagnostics);
9376 self.dismiss_diagnostics(cx);
9377 } else {
9378 self.active_diagnostics = Some(active_diagnostics);
9379 }
9380 }
9381
9382 self.scrollbar_marker_state.dirty = true;
9383 }
9384 }
9385
9386 pub fn unfold_ranges<T: ToOffset + Clone>(
9387 &mut self,
9388 ranges: impl IntoIterator<Item = Range<T>>,
9389 inclusive: bool,
9390 auto_scroll: bool,
9391 cx: &mut ViewContext<Self>,
9392 ) {
9393 let mut unfold_ranges = Vec::new();
9394 let mut buffers_affected = HashMap::default();
9395 let multi_buffer = self.buffer().read(cx);
9396 for range in ranges {
9397 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9398 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9399 };
9400 unfold_ranges.push(range);
9401 }
9402
9403 let mut ranges = unfold_ranges.into_iter().peekable();
9404 if ranges.peek().is_some() {
9405 self.display_map
9406 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9407 if auto_scroll {
9408 self.request_autoscroll(Autoscroll::fit(), cx);
9409 }
9410
9411 for buffer in buffers_affected.into_values() {
9412 self.sync_expanded_diff_hunks(buffer, cx);
9413 }
9414
9415 cx.notify();
9416 self.scrollbar_marker_state.dirty = true;
9417 }
9418 }
9419
9420 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9421 if hovered != self.gutter_hovered {
9422 self.gutter_hovered = hovered;
9423 cx.notify();
9424 }
9425 }
9426
9427 pub fn insert_blocks(
9428 &mut self,
9429 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9430 autoscroll: Option<Autoscroll>,
9431 cx: &mut ViewContext<Self>,
9432 ) -> Vec<BlockId> {
9433 let blocks = self
9434 .display_map
9435 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9436 if let Some(autoscroll) = autoscroll {
9437 self.request_autoscroll(autoscroll, cx);
9438 }
9439 blocks
9440 }
9441
9442 pub fn replace_blocks(
9443 &mut self,
9444 blocks: HashMap<BlockId, RenderBlock>,
9445 autoscroll: Option<Autoscroll>,
9446 cx: &mut ViewContext<Self>,
9447 ) {
9448 self.display_map
9449 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9450 if let Some(autoscroll) = autoscroll {
9451 self.request_autoscroll(autoscroll, cx);
9452 }
9453 }
9454
9455 pub fn remove_blocks(
9456 &mut self,
9457 block_ids: HashSet<BlockId>,
9458 autoscroll: Option<Autoscroll>,
9459 cx: &mut ViewContext<Self>,
9460 ) {
9461 self.display_map.update(cx, |display_map, cx| {
9462 display_map.remove_blocks(block_ids, cx)
9463 });
9464 if let Some(autoscroll) = autoscroll {
9465 self.request_autoscroll(autoscroll, cx);
9466 }
9467 }
9468
9469 pub fn insert_flaps(
9470 &mut self,
9471 flaps: impl IntoIterator<Item = Flap>,
9472 cx: &mut ViewContext<Self>,
9473 ) -> Vec<FlapId> {
9474 self.display_map
9475 .update(cx, |map, cx| map.insert_flaps(flaps, cx))
9476 }
9477
9478 pub fn remove_flaps(
9479 &mut self,
9480 ids: impl IntoIterator<Item = FlapId>,
9481 cx: &mut ViewContext<Self>,
9482 ) {
9483 self.display_map
9484 .update(cx, |map, cx| map.remove_flaps(ids, cx));
9485 }
9486
9487 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9488 self.display_map
9489 .update(cx, |map, cx| map.snapshot(cx))
9490 .longest_row()
9491 }
9492
9493 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9494 self.display_map
9495 .update(cx, |map, cx| map.snapshot(cx))
9496 .max_point()
9497 }
9498
9499 pub fn text(&self, cx: &AppContext) -> String {
9500 self.buffer.read(cx).read(cx).text()
9501 }
9502
9503 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9504 let text = self.text(cx);
9505 let text = text.trim();
9506
9507 if text.is_empty() {
9508 return None;
9509 }
9510
9511 Some(text.to_string())
9512 }
9513
9514 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9515 self.transact(cx, |this, cx| {
9516 this.buffer
9517 .read(cx)
9518 .as_singleton()
9519 .expect("you can only call set_text on editors for singleton buffers")
9520 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9521 });
9522 }
9523
9524 pub fn display_text(&self, cx: &mut AppContext) -> String {
9525 self.display_map
9526 .update(cx, |map, cx| map.snapshot(cx))
9527 .text()
9528 }
9529
9530 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9531 let mut wrap_guides = smallvec::smallvec![];
9532
9533 if self.show_wrap_guides == Some(false) {
9534 return wrap_guides;
9535 }
9536
9537 let settings = self.buffer.read(cx).settings_at(0, cx);
9538 if settings.show_wrap_guides {
9539 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9540 wrap_guides.push((soft_wrap as usize, true));
9541 }
9542 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9543 }
9544
9545 wrap_guides
9546 }
9547
9548 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9549 let settings = self.buffer.read(cx).settings_at(0, cx);
9550 let mode = self
9551 .soft_wrap_mode_override
9552 .unwrap_or_else(|| settings.soft_wrap);
9553 match mode {
9554 language_settings::SoftWrap::None => SoftWrap::None,
9555 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9556 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9557 language_settings::SoftWrap::PreferredLineLength => {
9558 SoftWrap::Column(settings.preferred_line_length)
9559 }
9560 }
9561 }
9562
9563 pub fn set_soft_wrap_mode(
9564 &mut self,
9565 mode: language_settings::SoftWrap,
9566 cx: &mut ViewContext<Self>,
9567 ) {
9568 self.soft_wrap_mode_override = Some(mode);
9569 cx.notify();
9570 }
9571
9572 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9573 let rem_size = cx.rem_size();
9574 self.display_map.update(cx, |map, cx| {
9575 map.set_font(
9576 style.text.font(),
9577 style.text.font_size.to_pixels(rem_size),
9578 cx,
9579 )
9580 });
9581 self.style = Some(style);
9582 }
9583
9584 pub fn style(&self) -> Option<&EditorStyle> {
9585 self.style.as_ref()
9586 }
9587
9588 // Called by the element. This method is not designed to be called outside of the editor
9589 // element's layout code because it does not notify when rewrapping is computed synchronously.
9590 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9591 self.display_map
9592 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9593 }
9594
9595 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9596 if self.soft_wrap_mode_override.is_some() {
9597 self.soft_wrap_mode_override.take();
9598 } else {
9599 let soft_wrap = match self.soft_wrap_mode(cx) {
9600 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9601 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9602 language_settings::SoftWrap::PreferLine
9603 }
9604 };
9605 self.soft_wrap_mode_override = Some(soft_wrap);
9606 }
9607 cx.notify();
9608 }
9609
9610 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9611 let mut editor_settings = EditorSettings::get_global(cx).clone();
9612 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9613 EditorSettings::override_global(editor_settings, cx);
9614 }
9615
9616 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9617 self.show_gutter = show_gutter;
9618 cx.notify();
9619 }
9620
9621 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9622 self.show_wrap_guides = Some(show_gutter);
9623 cx.notify();
9624 }
9625
9626 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9627 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9628 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9629 cx.reveal_path(&file.abs_path(cx));
9630 }
9631 }
9632 }
9633
9634 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9635 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9636 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9637 if let Some(path) = file.abs_path(cx).to_str() {
9638 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9639 }
9640 }
9641 }
9642 }
9643
9644 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9645 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9646 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9647 if let Some(path) = file.path().to_str() {
9648 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9649 }
9650 }
9651 }
9652 }
9653
9654 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9655 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9656
9657 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9658 self.start_git_blame(true, cx);
9659 }
9660
9661 cx.notify();
9662 }
9663
9664 pub fn toggle_git_blame_inline(
9665 &mut self,
9666 _: &ToggleGitBlameInline,
9667 cx: &mut ViewContext<Self>,
9668 ) {
9669 self.toggle_git_blame_inline_internal(true, cx);
9670 cx.notify();
9671 }
9672
9673 pub fn git_blame_inline_enabled(&self) -> bool {
9674 self.git_blame_inline_enabled
9675 }
9676
9677 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9678 if let Some(project) = self.project.as_ref() {
9679 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9680 return;
9681 };
9682
9683 if buffer.read(cx).file().is_none() {
9684 return;
9685 }
9686
9687 let focused = self.focus_handle(cx).contains_focused(cx);
9688
9689 let project = project.clone();
9690 let blame =
9691 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9692 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9693 self.blame = Some(blame);
9694 }
9695 }
9696
9697 fn toggle_git_blame_inline_internal(
9698 &mut self,
9699 user_triggered: bool,
9700 cx: &mut ViewContext<Self>,
9701 ) {
9702 if self.git_blame_inline_enabled {
9703 self.git_blame_inline_enabled = false;
9704 self.show_git_blame_inline = false;
9705 self.show_git_blame_inline_delay_task.take();
9706 } else {
9707 self.git_blame_inline_enabled = true;
9708 self.start_git_blame_inline(user_triggered, cx);
9709 }
9710
9711 cx.notify();
9712 }
9713
9714 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9715 self.start_git_blame(user_triggered, cx);
9716
9717 if ProjectSettings::get_global(cx)
9718 .git
9719 .inline_blame_delay()
9720 .is_some()
9721 {
9722 self.start_inline_blame_timer(cx);
9723 } else {
9724 self.show_git_blame_inline = true
9725 }
9726 }
9727
9728 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9729 self.blame.as_ref()
9730 }
9731
9732 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9733 self.show_git_blame_gutter && self.has_blame_entries(cx)
9734 }
9735
9736 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9737 self.show_git_blame_inline
9738 && self.focus_handle.is_focused(cx)
9739 && !self.newest_selection_head_on_empty_line(cx)
9740 && self.has_blame_entries(cx)
9741 }
9742
9743 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9744 self.blame()
9745 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9746 }
9747
9748 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9749 let cursor_anchor = self.selections.newest_anchor().head();
9750
9751 let snapshot = self.buffer.read(cx).snapshot(cx);
9752 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9753
9754 snapshot.line_len(buffer_row) == 0
9755 }
9756
9757 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9758 let (path, repo) = maybe!({
9759 let project_handle = self.project.as_ref()?.clone();
9760 let project = project_handle.read(cx);
9761 let buffer = self.buffer().read(cx).as_singleton()?;
9762 let path = buffer
9763 .read(cx)
9764 .file()?
9765 .as_local()?
9766 .path()
9767 .to_str()?
9768 .to_string();
9769 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9770 Some((path, repo))
9771 })
9772 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9773
9774 const REMOTE_NAME: &str = "origin";
9775 let origin_url = repo
9776 .lock()
9777 .remote_url(REMOTE_NAME)
9778 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9779 let sha = repo
9780 .lock()
9781 .head_sha()
9782 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9783 let selections = self.selections.all::<Point>(cx);
9784 let selection = selections.iter().peekable().next();
9785
9786 let (provider, remote) =
9787 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9788 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9789
9790 Ok(provider.build_permalink(
9791 remote,
9792 BuildPermalinkParams {
9793 sha: &sha,
9794 path: &path,
9795 selection: selection.map(|selection| {
9796 let range = selection.range();
9797 let start = range.start.row;
9798 let end = range.end.row;
9799 start..end
9800 }),
9801 },
9802 ))
9803 }
9804
9805 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9806 let permalink = self.get_permalink_to_line(cx);
9807
9808 match permalink {
9809 Ok(permalink) => {
9810 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9811 }
9812 Err(err) => {
9813 let message = format!("Failed to copy permalink: {err}");
9814
9815 Err::<(), anyhow::Error>(err).log_err();
9816
9817 if let Some(workspace) = self.workspace() {
9818 workspace.update(cx, |workspace, cx| {
9819 struct CopyPermalinkToLine;
9820
9821 workspace.show_toast(
9822 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9823 cx,
9824 )
9825 })
9826 }
9827 }
9828 }
9829 }
9830
9831 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9832 let permalink = self.get_permalink_to_line(cx);
9833
9834 match permalink {
9835 Ok(permalink) => {
9836 cx.open_url(permalink.as_ref());
9837 }
9838 Err(err) => {
9839 let message = format!("Failed to open permalink: {err}");
9840
9841 Err::<(), anyhow::Error>(err).log_err();
9842
9843 if let Some(workspace) = self.workspace() {
9844 workspace.update(cx, |workspace, cx| {
9845 struct OpenPermalinkToLine;
9846
9847 workspace.show_toast(
9848 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9849 cx,
9850 )
9851 })
9852 }
9853 }
9854 }
9855 }
9856
9857 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9858 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9859 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9860 pub fn highlight_rows<T: 'static>(
9861 &mut self,
9862 rows: RangeInclusive<Anchor>,
9863 color: Option<Hsla>,
9864 should_autoscroll: bool,
9865 cx: &mut ViewContext<Self>,
9866 ) {
9867 let snapshot = self.buffer().read(cx).snapshot(cx);
9868 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
9869 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
9870 highlight
9871 .range
9872 .start()
9873 .cmp(&rows.start(), &snapshot)
9874 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
9875 });
9876 match (color, existing_highlight_index) {
9877 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
9878 ix,
9879 RowHighlight {
9880 index: post_inc(&mut self.highlight_order),
9881 range: rows,
9882 should_autoscroll,
9883 color,
9884 },
9885 ),
9886 (None, Ok(i)) => {
9887 row_highlights.remove(i);
9888 }
9889 }
9890 }
9891
9892 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9893 pub fn clear_row_highlights<T: 'static>(&mut self) {
9894 self.highlighted_rows.remove(&TypeId::of::<T>());
9895 }
9896
9897 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9898 pub fn highlighted_rows<T: 'static>(
9899 &self,
9900 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9901 Some(
9902 self.highlighted_rows
9903 .get(&TypeId::of::<T>())?
9904 .iter()
9905 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
9906 )
9907 }
9908
9909 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9910 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9911 /// Allows to ignore certain kinds of highlights.
9912 pub fn highlighted_display_rows(
9913 &mut self,
9914 cx: &mut WindowContext,
9915 ) -> BTreeMap<DisplayRow, Hsla> {
9916 let snapshot = self.snapshot(cx);
9917 let mut used_highlight_orders = HashMap::default();
9918 self.highlighted_rows
9919 .iter()
9920 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9921 .fold(
9922 BTreeMap::<DisplayRow, Hsla>::new(),
9923 |mut unique_rows, highlight| {
9924 let start_row = highlight.range.start().to_display_point(&snapshot).row();
9925 let end_row = highlight.range.end().to_display_point(&snapshot).row();
9926 for row in start_row.0..=end_row.0 {
9927 let used_index =
9928 used_highlight_orders.entry(row).or_insert(highlight.index);
9929 if highlight.index >= *used_index {
9930 *used_index = highlight.index;
9931 match highlight.color {
9932 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
9933 None => unique_rows.remove(&DisplayRow(row)),
9934 };
9935 }
9936 }
9937 unique_rows
9938 },
9939 )
9940 }
9941
9942 pub fn highlighted_display_row_for_autoscroll(
9943 &self,
9944 snapshot: &DisplaySnapshot,
9945 ) -> Option<DisplayRow> {
9946 self.highlighted_rows
9947 .values()
9948 .flat_map(|highlighted_rows| highlighted_rows.iter())
9949 .filter_map(|highlight| {
9950 if highlight.color.is_none() || !highlight.should_autoscroll {
9951 return None;
9952 }
9953 Some(highlight.range.start().to_display_point(&snapshot).row())
9954 })
9955 .min()
9956 }
9957
9958 pub fn set_search_within_ranges(
9959 &mut self,
9960 ranges: &[Range<Anchor>],
9961 cx: &mut ViewContext<Self>,
9962 ) {
9963 self.highlight_background::<SearchWithinRange>(
9964 ranges,
9965 |colors| colors.editor_document_highlight_read_background,
9966 cx,
9967 )
9968 }
9969
9970 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
9971 self.clear_background_highlights::<SearchWithinRange>(cx);
9972 }
9973
9974 pub fn highlight_background<T: 'static>(
9975 &mut self,
9976 ranges: &[Range<Anchor>],
9977 color_fetcher: fn(&ThemeColors) -> Hsla,
9978 cx: &mut ViewContext<Self>,
9979 ) {
9980 let snapshot = self.snapshot(cx);
9981 // this is to try and catch a panic sooner
9982 for range in ranges {
9983 snapshot
9984 .buffer_snapshot
9985 .summary_for_anchor::<usize>(&range.start);
9986 snapshot
9987 .buffer_snapshot
9988 .summary_for_anchor::<usize>(&range.end);
9989 }
9990
9991 self.background_highlights
9992 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9993 self.scrollbar_marker_state.dirty = true;
9994 cx.notify();
9995 }
9996
9997 pub fn clear_background_highlights<T: 'static>(
9998 &mut self,
9999 cx: &mut ViewContext<Self>,
10000 ) -> Option<BackgroundHighlight> {
10001 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10002 if !text_highlights.1.is_empty() {
10003 self.scrollbar_marker_state.dirty = true;
10004 cx.notify();
10005 }
10006 Some(text_highlights)
10007 }
10008
10009 #[cfg(feature = "test-support")]
10010 pub fn all_text_background_highlights(
10011 &mut self,
10012 cx: &mut ViewContext<Self>,
10013 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10014 let snapshot = self.snapshot(cx);
10015 let buffer = &snapshot.buffer_snapshot;
10016 let start = buffer.anchor_before(0);
10017 let end = buffer.anchor_after(buffer.len());
10018 let theme = cx.theme().colors();
10019 self.background_highlights_in_range(start..end, &snapshot, theme)
10020 }
10021
10022 fn document_highlights_for_position<'a>(
10023 &'a self,
10024 position: Anchor,
10025 buffer: &'a MultiBufferSnapshot,
10026 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10027 let read_highlights = self
10028 .background_highlights
10029 .get(&TypeId::of::<DocumentHighlightRead>())
10030 .map(|h| &h.1);
10031 let write_highlights = self
10032 .background_highlights
10033 .get(&TypeId::of::<DocumentHighlightWrite>())
10034 .map(|h| &h.1);
10035 let left_position = position.bias_left(buffer);
10036 let right_position = position.bias_right(buffer);
10037 read_highlights
10038 .into_iter()
10039 .chain(write_highlights)
10040 .flat_map(move |ranges| {
10041 let start_ix = match ranges.binary_search_by(|probe| {
10042 let cmp = probe.end.cmp(&left_position, buffer);
10043 if cmp.is_ge() {
10044 Ordering::Greater
10045 } else {
10046 Ordering::Less
10047 }
10048 }) {
10049 Ok(i) | Err(i) => i,
10050 };
10051
10052 ranges[start_ix..]
10053 .iter()
10054 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10055 })
10056 }
10057
10058 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10059 self.background_highlights
10060 .get(&TypeId::of::<T>())
10061 .map_or(false, |(_, highlights)| !highlights.is_empty())
10062 }
10063
10064 pub fn background_highlights_in_range(
10065 &self,
10066 search_range: Range<Anchor>,
10067 display_snapshot: &DisplaySnapshot,
10068 theme: &ThemeColors,
10069 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10070 let mut results = Vec::new();
10071 for (color_fetcher, ranges) in self.background_highlights.values() {
10072 let color = color_fetcher(theme);
10073 let start_ix = match ranges.binary_search_by(|probe| {
10074 let cmp = probe
10075 .end
10076 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10077 if cmp.is_gt() {
10078 Ordering::Greater
10079 } else {
10080 Ordering::Less
10081 }
10082 }) {
10083 Ok(i) | Err(i) => i,
10084 };
10085 for range in &ranges[start_ix..] {
10086 if range
10087 .start
10088 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10089 .is_ge()
10090 {
10091 break;
10092 }
10093
10094 let start = range.start.to_display_point(&display_snapshot);
10095 let end = range.end.to_display_point(&display_snapshot);
10096 results.push((start..end, color))
10097 }
10098 }
10099 results
10100 }
10101
10102 pub fn background_highlight_row_ranges<T: 'static>(
10103 &self,
10104 search_range: Range<Anchor>,
10105 display_snapshot: &DisplaySnapshot,
10106 count: usize,
10107 ) -> Vec<RangeInclusive<DisplayPoint>> {
10108 let mut results = Vec::new();
10109 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10110 return vec![];
10111 };
10112
10113 let start_ix = match ranges.binary_search_by(|probe| {
10114 let cmp = probe
10115 .end
10116 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10117 if cmp.is_gt() {
10118 Ordering::Greater
10119 } else {
10120 Ordering::Less
10121 }
10122 }) {
10123 Ok(i) | Err(i) => i,
10124 };
10125 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10126 if let (Some(start_display), Some(end_display)) = (start, end) {
10127 results.push(
10128 start_display.to_display_point(display_snapshot)
10129 ..=end_display.to_display_point(display_snapshot),
10130 );
10131 }
10132 };
10133 let mut start_row: Option<Point> = None;
10134 let mut end_row: Option<Point> = None;
10135 if ranges.len() > count {
10136 return Vec::new();
10137 }
10138 for range in &ranges[start_ix..] {
10139 if range
10140 .start
10141 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10142 .is_ge()
10143 {
10144 break;
10145 }
10146 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10147 if let Some(current_row) = &end_row {
10148 if end.row == current_row.row {
10149 continue;
10150 }
10151 }
10152 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10153 if start_row.is_none() {
10154 assert_eq!(end_row, None);
10155 start_row = Some(start);
10156 end_row = Some(end);
10157 continue;
10158 }
10159 if let Some(current_end) = end_row.as_mut() {
10160 if start.row > current_end.row + 1 {
10161 push_region(start_row, end_row);
10162 start_row = Some(start);
10163 end_row = Some(end);
10164 } else {
10165 // Merge two hunks.
10166 *current_end = end;
10167 }
10168 } else {
10169 unreachable!();
10170 }
10171 }
10172 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10173 push_region(start_row, end_row);
10174 results
10175 }
10176
10177 /// Get the text ranges corresponding to the redaction query
10178 pub fn redacted_ranges(
10179 &self,
10180 search_range: Range<Anchor>,
10181 display_snapshot: &DisplaySnapshot,
10182 cx: &WindowContext,
10183 ) -> Vec<Range<DisplayPoint>> {
10184 display_snapshot
10185 .buffer_snapshot
10186 .redacted_ranges(search_range, |file| {
10187 if let Some(file) = file {
10188 file.is_private()
10189 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10190 } else {
10191 false
10192 }
10193 })
10194 .map(|range| {
10195 range.start.to_display_point(display_snapshot)
10196 ..range.end.to_display_point(display_snapshot)
10197 })
10198 .collect()
10199 }
10200
10201 pub fn highlight_text<T: 'static>(
10202 &mut self,
10203 ranges: Vec<Range<Anchor>>,
10204 style: HighlightStyle,
10205 cx: &mut ViewContext<Self>,
10206 ) {
10207 self.display_map.update(cx, |map, _| {
10208 map.highlight_text(TypeId::of::<T>(), ranges, style)
10209 });
10210 cx.notify();
10211 }
10212
10213 pub(crate) fn highlight_inlays<T: 'static>(
10214 &mut self,
10215 highlights: Vec<InlayHighlight>,
10216 style: HighlightStyle,
10217 cx: &mut ViewContext<Self>,
10218 ) {
10219 self.display_map.update(cx, |map, _| {
10220 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10221 });
10222 cx.notify();
10223 }
10224
10225 pub fn text_highlights<'a, T: 'static>(
10226 &'a self,
10227 cx: &'a AppContext,
10228 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10229 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10230 }
10231
10232 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10233 let cleared = self
10234 .display_map
10235 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10236 if cleared {
10237 cx.notify();
10238 }
10239 }
10240
10241 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10242 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10243 && self.focus_handle.is_focused(cx)
10244 }
10245
10246 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10247 cx.notify();
10248 }
10249
10250 fn on_buffer_event(
10251 &mut self,
10252 multibuffer: Model<MultiBuffer>,
10253 event: &multi_buffer::Event,
10254 cx: &mut ViewContext<Self>,
10255 ) {
10256 match event {
10257 multi_buffer::Event::Edited {
10258 singleton_buffer_edited,
10259 } => {
10260 self.scrollbar_marker_state.dirty = true;
10261 self.refresh_active_diagnostics(cx);
10262 self.refresh_code_actions(cx);
10263 if self.has_active_inline_completion(cx) {
10264 self.update_visible_inline_completion(cx);
10265 }
10266 cx.emit(EditorEvent::BufferEdited);
10267 cx.emit(SearchEvent::MatchesInvalidated);
10268
10269 if *singleton_buffer_edited {
10270 if let Some(project) = &self.project {
10271 let project = project.read(cx);
10272 let languages_affected = multibuffer
10273 .read(cx)
10274 .all_buffers()
10275 .into_iter()
10276 .filter_map(|buffer| {
10277 let buffer = buffer.read(cx);
10278 let language = buffer.language()?;
10279 if project.is_local()
10280 && project.language_servers_for_buffer(buffer, cx).count() == 0
10281 {
10282 None
10283 } else {
10284 Some(language)
10285 }
10286 })
10287 .cloned()
10288 .collect::<HashSet<_>>();
10289 if !languages_affected.is_empty() {
10290 self.refresh_inlay_hints(
10291 InlayHintRefreshReason::BufferEdited(languages_affected),
10292 cx,
10293 );
10294 }
10295 }
10296 }
10297
10298 let Some(project) = &self.project else { return };
10299 let telemetry = project.read(cx).client().telemetry().clone();
10300 telemetry.log_edit_event("editor");
10301 }
10302 multi_buffer::Event::ExcerptsAdded {
10303 buffer,
10304 predecessor,
10305 excerpts,
10306 } => {
10307 self.tasks_update_task = Some(self.refresh_runnables(cx));
10308 cx.emit(EditorEvent::ExcerptsAdded {
10309 buffer: buffer.clone(),
10310 predecessor: *predecessor,
10311 excerpts: excerpts.clone(),
10312 });
10313 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10314 }
10315 multi_buffer::Event::ExcerptsRemoved { ids } => {
10316 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10317 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10318 }
10319 multi_buffer::Event::Reparsed => {
10320 self.tasks_update_task = Some(self.refresh_runnables(cx));
10321
10322 cx.emit(EditorEvent::Reparsed);
10323 }
10324 multi_buffer::Event::LanguageChanged => {
10325 cx.emit(EditorEvent::Reparsed);
10326 cx.notify();
10327 }
10328 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10329 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10330 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10331 cx.emit(EditorEvent::TitleChanged)
10332 }
10333 multi_buffer::Event::DiffBaseChanged => {
10334 self.scrollbar_marker_state.dirty = true;
10335 cx.emit(EditorEvent::DiffBaseChanged);
10336 cx.notify();
10337 }
10338 multi_buffer::Event::DiffUpdated { buffer } => {
10339 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10340 cx.notify();
10341 }
10342 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10343 multi_buffer::Event::DiagnosticsUpdated => {
10344 self.refresh_active_diagnostics(cx);
10345 self.scrollbar_marker_state.dirty = true;
10346 cx.notify();
10347 }
10348 _ => {}
10349 };
10350 }
10351
10352 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10353 cx.notify();
10354 }
10355
10356 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10357 self.refresh_inline_completion(true, cx);
10358 self.refresh_inlay_hints(
10359 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10360 self.selections.newest_anchor().head(),
10361 &self.buffer.read(cx).snapshot(cx),
10362 cx,
10363 )),
10364 cx,
10365 );
10366 let editor_settings = EditorSettings::get_global(cx);
10367 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10368 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10369 self.current_line_highlight = editor_settings.current_line_highlight;
10370
10371 if self.mode == EditorMode::Full {
10372 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10373 if self.git_blame_inline_enabled != inline_blame_enabled {
10374 self.toggle_git_blame_inline_internal(false, cx);
10375 }
10376 }
10377
10378 cx.notify();
10379 }
10380
10381 pub fn set_searchable(&mut self, searchable: bool) {
10382 self.searchable = searchable;
10383 }
10384
10385 pub fn searchable(&self) -> bool {
10386 self.searchable
10387 }
10388
10389 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10390 self.open_excerpts_common(true, cx)
10391 }
10392
10393 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10394 self.open_excerpts_common(false, cx)
10395 }
10396
10397 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10398 let buffer = self.buffer.read(cx);
10399 if buffer.is_singleton() {
10400 cx.propagate();
10401 return;
10402 }
10403
10404 let Some(workspace) = self.workspace() else {
10405 cx.propagate();
10406 return;
10407 };
10408
10409 let mut new_selections_by_buffer = HashMap::default();
10410 for selection in self.selections.all::<usize>(cx) {
10411 for (buffer, mut range, _) in
10412 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10413 {
10414 if selection.reversed {
10415 mem::swap(&mut range.start, &mut range.end);
10416 }
10417 new_selections_by_buffer
10418 .entry(buffer)
10419 .or_insert(Vec::new())
10420 .push(range)
10421 }
10422 }
10423
10424 // We defer the pane interaction because we ourselves are a workspace item
10425 // and activating a new item causes the pane to call a method on us reentrantly,
10426 // which panics if we're on the stack.
10427 cx.window_context().defer(move |cx| {
10428 workspace.update(cx, |workspace, cx| {
10429 let pane = if split {
10430 workspace.adjacent_pane(cx)
10431 } else {
10432 workspace.active_pane().clone()
10433 };
10434
10435 for (buffer, ranges) in new_selections_by_buffer {
10436 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10437 editor.update(cx, |editor, cx| {
10438 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10439 s.select_ranges(ranges);
10440 });
10441 });
10442 }
10443 })
10444 });
10445 }
10446
10447 fn jump(
10448 &mut self,
10449 path: ProjectPath,
10450 position: Point,
10451 anchor: language::Anchor,
10452 offset_from_top: u32,
10453 cx: &mut ViewContext<Self>,
10454 ) {
10455 let workspace = self.workspace();
10456 cx.spawn(|_, mut cx| async move {
10457 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10458 let editor = workspace.update(&mut cx, |workspace, cx| {
10459 // Reset the preview item id before opening the new item
10460 workspace.active_pane().update(cx, |pane, cx| {
10461 pane.set_preview_item_id(None, cx);
10462 });
10463 workspace.open_path_preview(path, None, true, true, cx)
10464 })?;
10465 let editor = editor
10466 .await?
10467 .downcast::<Editor>()
10468 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10469 .downgrade();
10470 editor.update(&mut cx, |editor, cx| {
10471 let buffer = editor
10472 .buffer()
10473 .read(cx)
10474 .as_singleton()
10475 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10476 let buffer = buffer.read(cx);
10477 let cursor = if buffer.can_resolve(&anchor) {
10478 language::ToPoint::to_point(&anchor, buffer)
10479 } else {
10480 buffer.clip_point(position, Bias::Left)
10481 };
10482
10483 let nav_history = editor.nav_history.take();
10484 editor.change_selections(
10485 Some(Autoscroll::top_relative(offset_from_top as usize)),
10486 cx,
10487 |s| {
10488 s.select_ranges([cursor..cursor]);
10489 },
10490 );
10491 editor.nav_history = nav_history;
10492
10493 anyhow::Ok(())
10494 })??;
10495
10496 anyhow::Ok(())
10497 })
10498 .detach_and_log_err(cx);
10499 }
10500
10501 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10502 let snapshot = self.buffer.read(cx).read(cx);
10503 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10504 Some(
10505 ranges
10506 .iter()
10507 .map(move |range| {
10508 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10509 })
10510 .collect(),
10511 )
10512 }
10513
10514 fn selection_replacement_ranges(
10515 &self,
10516 range: Range<OffsetUtf16>,
10517 cx: &AppContext,
10518 ) -> Vec<Range<OffsetUtf16>> {
10519 let selections = self.selections.all::<OffsetUtf16>(cx);
10520 let newest_selection = selections
10521 .iter()
10522 .max_by_key(|selection| selection.id)
10523 .unwrap();
10524 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10525 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10526 let snapshot = self.buffer.read(cx).read(cx);
10527 selections
10528 .into_iter()
10529 .map(|mut selection| {
10530 selection.start.0 =
10531 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10532 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10533 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10534 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10535 })
10536 .collect()
10537 }
10538
10539 fn report_editor_event(
10540 &self,
10541 operation: &'static str,
10542 file_extension: Option<String>,
10543 cx: &AppContext,
10544 ) {
10545 if cfg!(any(test, feature = "test-support")) {
10546 return;
10547 }
10548
10549 let Some(project) = &self.project else { return };
10550
10551 // If None, we are in a file without an extension
10552 let file = self
10553 .buffer
10554 .read(cx)
10555 .as_singleton()
10556 .and_then(|b| b.read(cx).file());
10557 let file_extension = file_extension.or(file
10558 .as_ref()
10559 .and_then(|file| Path::new(file.file_name(cx)).extension())
10560 .and_then(|e| e.to_str())
10561 .map(|a| a.to_string()));
10562
10563 let vim_mode = cx
10564 .global::<SettingsStore>()
10565 .raw_user_settings()
10566 .get("vim_mode")
10567 == Some(&serde_json::Value::Bool(true));
10568
10569 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10570 == language::language_settings::InlineCompletionProvider::Copilot;
10571 let copilot_enabled_for_language = self
10572 .buffer
10573 .read(cx)
10574 .settings_at(0, cx)
10575 .show_inline_completions;
10576
10577 let telemetry = project.read(cx).client().telemetry().clone();
10578 telemetry.report_editor_event(
10579 file_extension,
10580 vim_mode,
10581 operation,
10582 copilot_enabled,
10583 copilot_enabled_for_language,
10584 )
10585 }
10586
10587 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10588 /// with each line being an array of {text, highlight} objects.
10589 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10590 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10591 return;
10592 };
10593
10594 #[derive(Serialize)]
10595 struct Chunk<'a> {
10596 text: String,
10597 highlight: Option<&'a str>,
10598 }
10599
10600 let snapshot = buffer.read(cx).snapshot();
10601 let range = self
10602 .selected_text_range(cx)
10603 .and_then(|selected_range| {
10604 if selected_range.is_empty() {
10605 None
10606 } else {
10607 Some(selected_range)
10608 }
10609 })
10610 .unwrap_or_else(|| 0..snapshot.len());
10611
10612 let chunks = snapshot.chunks(range, true);
10613 let mut lines = Vec::new();
10614 let mut line: VecDeque<Chunk> = VecDeque::new();
10615
10616 let Some(style) = self.style.as_ref() else {
10617 return;
10618 };
10619
10620 for chunk in chunks {
10621 let highlight = chunk
10622 .syntax_highlight_id
10623 .and_then(|id| id.name(&style.syntax));
10624 let mut chunk_lines = chunk.text.split('\n').peekable();
10625 while let Some(text) = chunk_lines.next() {
10626 let mut merged_with_last_token = false;
10627 if let Some(last_token) = line.back_mut() {
10628 if last_token.highlight == highlight {
10629 last_token.text.push_str(text);
10630 merged_with_last_token = true;
10631 }
10632 }
10633
10634 if !merged_with_last_token {
10635 line.push_back(Chunk {
10636 text: text.into(),
10637 highlight,
10638 });
10639 }
10640
10641 if chunk_lines.peek().is_some() {
10642 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10643 line.pop_front();
10644 }
10645 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10646 line.pop_back();
10647 }
10648
10649 lines.push(mem::take(&mut line));
10650 }
10651 }
10652 }
10653
10654 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10655 return;
10656 };
10657 cx.write_to_clipboard(ClipboardItem::new(lines));
10658 }
10659
10660 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10661 &self.inlay_hint_cache
10662 }
10663
10664 pub fn replay_insert_event(
10665 &mut self,
10666 text: &str,
10667 relative_utf16_range: Option<Range<isize>>,
10668 cx: &mut ViewContext<Self>,
10669 ) {
10670 if !self.input_enabled {
10671 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10672 return;
10673 }
10674 if let Some(relative_utf16_range) = relative_utf16_range {
10675 let selections = self.selections.all::<OffsetUtf16>(cx);
10676 self.change_selections(None, cx, |s| {
10677 let new_ranges = selections.into_iter().map(|range| {
10678 let start = OffsetUtf16(
10679 range
10680 .head()
10681 .0
10682 .saturating_add_signed(relative_utf16_range.start),
10683 );
10684 let end = OffsetUtf16(
10685 range
10686 .head()
10687 .0
10688 .saturating_add_signed(relative_utf16_range.end),
10689 );
10690 start..end
10691 });
10692 s.select_ranges(new_ranges);
10693 });
10694 }
10695
10696 self.handle_input(text, cx);
10697 }
10698
10699 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10700 let Some(project) = self.project.as_ref() else {
10701 return false;
10702 };
10703 let project = project.read(cx);
10704
10705 let mut supports = false;
10706 self.buffer().read(cx).for_each_buffer(|buffer| {
10707 if !supports {
10708 supports = project
10709 .language_servers_for_buffer(buffer.read(cx), cx)
10710 .any(
10711 |(_, server)| match server.capabilities().inlay_hint_provider {
10712 Some(lsp::OneOf::Left(enabled)) => enabled,
10713 Some(lsp::OneOf::Right(_)) => true,
10714 None => false,
10715 },
10716 )
10717 }
10718 });
10719 supports
10720 }
10721
10722 pub fn focus(&self, cx: &mut WindowContext) {
10723 cx.focus(&self.focus_handle)
10724 }
10725
10726 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10727 self.focus_handle.is_focused(cx)
10728 }
10729
10730 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10731 cx.emit(EditorEvent::Focused);
10732 if let Some(rename) = self.pending_rename.as_ref() {
10733 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10734 cx.focus(&rename_editor_focus_handle);
10735 } else {
10736 if let Some(blame) = self.blame.as_ref() {
10737 blame.update(cx, GitBlame::focus)
10738 }
10739
10740 self.blink_manager.update(cx, BlinkManager::enable);
10741 self.show_cursor_names(cx);
10742 self.buffer.update(cx, |buffer, cx| {
10743 buffer.finalize_last_transaction(cx);
10744 if self.leader_peer_id.is_none() {
10745 buffer.set_active_selections(
10746 &self.selections.disjoint_anchors(),
10747 self.selections.line_mode,
10748 self.cursor_shape,
10749 cx,
10750 );
10751 }
10752 });
10753 }
10754 }
10755
10756 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10757 self.blink_manager.update(cx, BlinkManager::disable);
10758 self.buffer
10759 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10760
10761 if let Some(blame) = self.blame.as_ref() {
10762 blame.update(cx, GitBlame::blur)
10763 }
10764 self.hide_context_menu(cx);
10765 hide_hover(self, cx);
10766 cx.emit(EditorEvent::Blurred);
10767 cx.notify();
10768 }
10769
10770 pub fn register_action<A: Action>(
10771 &mut self,
10772 listener: impl Fn(&A, &mut WindowContext) + 'static,
10773 ) -> &mut Self {
10774 let listener = Arc::new(listener);
10775
10776 self.editor_actions.push(Box::new(move |cx| {
10777 let _view = cx.view().clone();
10778 let cx = cx.window_context();
10779 let listener = listener.clone();
10780 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10781 let action = action.downcast_ref().unwrap();
10782 if phase == DispatchPhase::Bubble {
10783 listener(action, cx)
10784 }
10785 })
10786 }));
10787 self
10788 }
10789}
10790
10791fn hunks_for_selections(
10792 multi_buffer_snapshot: &MultiBufferSnapshot,
10793 selections: &[Selection<Anchor>],
10794) -> Vec<DiffHunk<MultiBufferRow>> {
10795 let mut hunks = Vec::with_capacity(selections.len());
10796 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10797 HashMap::default();
10798 let buffer_rows_for_selections = selections.iter().map(|selection| {
10799 let head = selection.head();
10800 let tail = selection.tail();
10801 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
10802 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
10803 if start > end {
10804 end..start
10805 } else {
10806 start..end
10807 }
10808 });
10809
10810 for selected_multi_buffer_rows in buffer_rows_for_selections {
10811 let query_rows =
10812 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
10813 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10814 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10815 // when the caret is just above or just below the deleted hunk.
10816 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
10817 let related_to_selection = if allow_adjacent {
10818 hunk.associated_range.overlaps(&query_rows)
10819 || hunk.associated_range.start == query_rows.end
10820 || hunk.associated_range.end == query_rows.start
10821 } else {
10822 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10823 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10824 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10825 || selected_multi_buffer_rows.end == hunk.associated_range.start
10826 };
10827 if related_to_selection {
10828 if !processed_buffer_rows
10829 .entry(hunk.buffer_id)
10830 .or_default()
10831 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10832 {
10833 continue;
10834 }
10835 hunks.push(hunk);
10836 }
10837 }
10838 }
10839
10840 hunks
10841}
10842
10843pub trait CollaborationHub {
10844 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10845 fn user_participant_indices<'a>(
10846 &self,
10847 cx: &'a AppContext,
10848 ) -> &'a HashMap<u64, ParticipantIndex>;
10849 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10850}
10851
10852impl CollaborationHub for Model<Project> {
10853 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10854 self.read(cx).collaborators()
10855 }
10856
10857 fn user_participant_indices<'a>(
10858 &self,
10859 cx: &'a AppContext,
10860 ) -> &'a HashMap<u64, ParticipantIndex> {
10861 self.read(cx).user_store().read(cx).participant_indices()
10862 }
10863
10864 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10865 let this = self.read(cx);
10866 let user_ids = this.collaborators().values().map(|c| c.user_id);
10867 this.user_store().read_with(cx, |user_store, cx| {
10868 user_store.participant_names(user_ids, cx)
10869 })
10870 }
10871}
10872
10873pub trait CompletionProvider {
10874 fn completions(
10875 &self,
10876 buffer: &Model<Buffer>,
10877 buffer_position: text::Anchor,
10878 cx: &mut ViewContext<Editor>,
10879 ) -> Task<Result<Vec<Completion>>>;
10880
10881 fn resolve_completions(
10882 &self,
10883 buffer: Model<Buffer>,
10884 completion_indices: Vec<usize>,
10885 completions: Arc<RwLock<Box<[Completion]>>>,
10886 cx: &mut ViewContext<Editor>,
10887 ) -> Task<Result<bool>>;
10888
10889 fn apply_additional_edits_for_completion(
10890 &self,
10891 buffer: Model<Buffer>,
10892 completion: Completion,
10893 push_to_history: bool,
10894 cx: &mut ViewContext<Editor>,
10895 ) -> Task<Result<Option<language::Transaction>>>;
10896}
10897
10898impl CompletionProvider for Model<Project> {
10899 fn completions(
10900 &self,
10901 buffer: &Model<Buffer>,
10902 buffer_position: text::Anchor,
10903 cx: &mut ViewContext<Editor>,
10904 ) -> Task<Result<Vec<Completion>>> {
10905 self.update(cx, |project, cx| {
10906 project.completions(&buffer, buffer_position, cx)
10907 })
10908 }
10909
10910 fn resolve_completions(
10911 &self,
10912 buffer: Model<Buffer>,
10913 completion_indices: Vec<usize>,
10914 completions: Arc<RwLock<Box<[Completion]>>>,
10915 cx: &mut ViewContext<Editor>,
10916 ) -> Task<Result<bool>> {
10917 self.update(cx, |project, cx| {
10918 project.resolve_completions(buffer, completion_indices, completions, cx)
10919 })
10920 }
10921
10922 fn apply_additional_edits_for_completion(
10923 &self,
10924 buffer: Model<Buffer>,
10925 completion: Completion,
10926 push_to_history: bool,
10927 cx: &mut ViewContext<Editor>,
10928 ) -> Task<Result<Option<language::Transaction>>> {
10929 self.update(cx, |project, cx| {
10930 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10931 })
10932 }
10933}
10934
10935fn inlay_hint_settings(
10936 location: Anchor,
10937 snapshot: &MultiBufferSnapshot,
10938 cx: &mut ViewContext<'_, Editor>,
10939) -> InlayHintSettings {
10940 let file = snapshot.file_at(location);
10941 let language = snapshot.language_at(location);
10942 let settings = all_language_settings(file, cx);
10943 settings
10944 .language(language.map(|l| l.name()).as_deref())
10945 .inlay_hints
10946}
10947
10948fn consume_contiguous_rows(
10949 contiguous_row_selections: &mut Vec<Selection<Point>>,
10950 selection: &Selection<Point>,
10951 display_map: &DisplaySnapshot,
10952 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10953) -> (MultiBufferRow, MultiBufferRow) {
10954 contiguous_row_selections.push(selection.clone());
10955 let start_row = MultiBufferRow(selection.start.row);
10956 let mut end_row = ending_row(selection, display_map);
10957
10958 while let Some(next_selection) = selections.peek() {
10959 if next_selection.start.row <= end_row.0 {
10960 end_row = ending_row(next_selection, display_map);
10961 contiguous_row_selections.push(selections.next().unwrap().clone());
10962 } else {
10963 break;
10964 }
10965 }
10966 (start_row, end_row)
10967}
10968
10969fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
10970 if next_selection.end.column > 0 || next_selection.is_empty() {
10971 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
10972 } else {
10973 MultiBufferRow(next_selection.end.row)
10974 }
10975}
10976
10977impl EditorSnapshot {
10978 pub fn remote_selections_in_range<'a>(
10979 &'a self,
10980 range: &'a Range<Anchor>,
10981 collaboration_hub: &dyn CollaborationHub,
10982 cx: &'a AppContext,
10983 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10984 let participant_names = collaboration_hub.user_names(cx);
10985 let participant_indices = collaboration_hub.user_participant_indices(cx);
10986 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10987 let collaborators_by_replica_id = collaborators_by_peer_id
10988 .iter()
10989 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10990 .collect::<HashMap<_, _>>();
10991 self.buffer_snapshot
10992 .remote_selections_in_range(range)
10993 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10994 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10995 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10996 let user_name = participant_names.get(&collaborator.user_id).cloned();
10997 Some(RemoteSelection {
10998 replica_id,
10999 selection,
11000 cursor_shape,
11001 line_mode,
11002 participant_index,
11003 peer_id: collaborator.peer_id,
11004 user_name,
11005 })
11006 })
11007 }
11008
11009 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11010 self.display_snapshot.buffer_snapshot.language_at(position)
11011 }
11012
11013 pub fn is_focused(&self) -> bool {
11014 self.is_focused
11015 }
11016
11017 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11018 self.placeholder_text.as_ref()
11019 }
11020
11021 pub fn scroll_position(&self) -> gpui::Point<f32> {
11022 self.scroll_anchor.scroll_position(&self.display_snapshot)
11023 }
11024
11025 pub fn gutter_dimensions(
11026 &self,
11027 font_id: FontId,
11028 font_size: Pixels,
11029 em_width: Pixels,
11030 max_line_number_width: Pixels,
11031 cx: &AppContext,
11032 ) -> GutterDimensions {
11033 if !self.show_gutter {
11034 return GutterDimensions::default();
11035 }
11036 let descent = cx.text_system().descent(font_id, font_size);
11037
11038 let show_git_gutter = matches!(
11039 ProjectSettings::get_global(cx).git.git_gutter,
11040 Some(GitGutterSetting::TrackedFiles)
11041 );
11042 let gutter_settings = EditorSettings::get_global(cx).gutter;
11043 let gutter_lines_enabled = gutter_settings.line_numbers;
11044 let line_gutter_width = if gutter_lines_enabled {
11045 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11046 let min_width_for_number_on_gutter = em_width * 4.0;
11047 max_line_number_width.max(min_width_for_number_on_gutter)
11048 } else {
11049 0.0.into()
11050 };
11051
11052 let git_blame_entries_width = self
11053 .render_git_blame_gutter
11054 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11055
11056 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11057 left_padding += if gutter_settings.code_actions {
11058 em_width * 3.0
11059 } else if show_git_gutter && gutter_lines_enabled {
11060 em_width * 2.0
11061 } else if show_git_gutter || gutter_lines_enabled {
11062 em_width
11063 } else {
11064 px(0.)
11065 };
11066
11067 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
11068 em_width * 4.0
11069 } else if gutter_settings.folds {
11070 em_width * 3.0
11071 } else if gutter_lines_enabled {
11072 em_width
11073 } else {
11074 px(0.)
11075 };
11076
11077 GutterDimensions {
11078 left_padding,
11079 right_padding,
11080 width: line_gutter_width + left_padding + right_padding,
11081 margin: -descent,
11082 git_blame_entries_width,
11083 }
11084 }
11085
11086 pub fn render_fold_toggle(
11087 &self,
11088 buffer_row: MultiBufferRow,
11089 row_contains_cursor: bool,
11090 editor: View<Editor>,
11091 cx: &mut WindowContext,
11092 ) -> Option<AnyElement> {
11093 let folded = self.is_line_folded(buffer_row);
11094
11095 if let Some(flap) = self
11096 .flap_snapshot
11097 .query_row(buffer_row, &self.buffer_snapshot)
11098 {
11099 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11100 if folded {
11101 editor.update(cx, |editor, cx| {
11102 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11103 });
11104 } else {
11105 editor.update(cx, |editor, cx| {
11106 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11107 });
11108 }
11109 });
11110
11111 Some((flap.render_toggle)(
11112 buffer_row,
11113 folded,
11114 toggle_callback,
11115 cx,
11116 ))
11117 } else if folded
11118 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11119 {
11120 Some(
11121 IconButton::new(
11122 ("indent-fold-indicator", buffer_row.0),
11123 ui::IconName::ChevronDown,
11124 )
11125 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
11126 if folded {
11127 this.unfold_at(&UnfoldAt { buffer_row }, cx);
11128 } else {
11129 this.fold_at(&FoldAt { buffer_row }, cx);
11130 }
11131 }))
11132 .icon_color(ui::Color::Muted)
11133 .icon_size(ui::IconSize::Small)
11134 .selected(folded)
11135 .selected_icon(ui::IconName::ChevronRight)
11136 .size(ui::ButtonSize::None)
11137 .into_any_element(),
11138 )
11139 } else {
11140 None
11141 }
11142 }
11143
11144 pub fn render_flap_trailer(
11145 &self,
11146 buffer_row: MultiBufferRow,
11147 cx: &mut WindowContext,
11148 ) -> Option<AnyElement> {
11149 let folded = self.is_line_folded(buffer_row);
11150 let flap = self
11151 .flap_snapshot
11152 .query_row(buffer_row, &self.buffer_snapshot)?;
11153 Some((flap.render_trailer)(buffer_row, folded, cx))
11154 }
11155}
11156
11157impl Deref for EditorSnapshot {
11158 type Target = DisplaySnapshot;
11159
11160 fn deref(&self) -> &Self::Target {
11161 &self.display_snapshot
11162 }
11163}
11164
11165#[derive(Clone, Debug, PartialEq, Eq)]
11166pub enum EditorEvent {
11167 InputIgnored {
11168 text: Arc<str>,
11169 },
11170 InputHandled {
11171 utf16_range_to_replace: Option<Range<isize>>,
11172 text: Arc<str>,
11173 },
11174 ExcerptsAdded {
11175 buffer: Model<Buffer>,
11176 predecessor: ExcerptId,
11177 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11178 },
11179 ExcerptsRemoved {
11180 ids: Vec<ExcerptId>,
11181 },
11182 BufferEdited,
11183 Edited,
11184 Reparsed,
11185 Focused,
11186 Blurred,
11187 DirtyChanged,
11188 Saved,
11189 TitleChanged,
11190 DiffBaseChanged,
11191 SelectionsChanged {
11192 local: bool,
11193 },
11194 ScrollPositionChanged {
11195 local: bool,
11196 autoscroll: bool,
11197 },
11198 Closed,
11199 TransactionUndone {
11200 transaction_id: clock::Lamport,
11201 },
11202 TransactionBegun {
11203 transaction_id: clock::Lamport,
11204 },
11205}
11206
11207impl EventEmitter<EditorEvent> for Editor {}
11208
11209impl FocusableView for Editor {
11210 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11211 self.focus_handle.clone()
11212 }
11213}
11214
11215impl Render for Editor {
11216 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11217 let settings = ThemeSettings::get_global(cx);
11218
11219 let text_style = match self.mode {
11220 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11221 color: cx.theme().colors().editor_foreground,
11222 font_family: settings.ui_font.family.clone(),
11223 font_features: settings.ui_font.features.clone(),
11224 font_size: rems(0.875).into(),
11225 font_weight: FontWeight::NORMAL,
11226 font_style: FontStyle::Normal,
11227 line_height: relative(settings.buffer_line_height.value()),
11228 background_color: None,
11229 underline: None,
11230 strikethrough: None,
11231 white_space: WhiteSpace::Normal,
11232 },
11233 EditorMode::Full => TextStyle {
11234 color: cx.theme().colors().editor_foreground,
11235 font_family: settings.buffer_font.family.clone(),
11236 font_features: settings.buffer_font.features.clone(),
11237 font_size: settings.buffer_font_size(cx).into(),
11238 font_weight: FontWeight::NORMAL,
11239 font_style: FontStyle::Normal,
11240 line_height: relative(settings.buffer_line_height.value()),
11241 background_color: None,
11242 underline: None,
11243 strikethrough: None,
11244 white_space: WhiteSpace::Normal,
11245 },
11246 };
11247
11248 let background = match self.mode {
11249 EditorMode::SingleLine => cx.theme().system().transparent,
11250 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11251 EditorMode::Full => cx.theme().colors().editor_background,
11252 };
11253
11254 EditorElement::new(
11255 cx.view(),
11256 EditorStyle {
11257 background,
11258 local_player: cx.theme().players().local(),
11259 text: text_style,
11260 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11261 syntax: cx.theme().syntax().clone(),
11262 status: cx.theme().status().clone(),
11263 inlay_hints_style: HighlightStyle {
11264 color: Some(cx.theme().status().hint),
11265 ..HighlightStyle::default()
11266 },
11267 suggestions_style: HighlightStyle {
11268 color: Some(cx.theme().status().predictive),
11269 ..HighlightStyle::default()
11270 },
11271 },
11272 )
11273 }
11274}
11275
11276impl ViewInputHandler for Editor {
11277 fn text_for_range(
11278 &mut self,
11279 range_utf16: Range<usize>,
11280 cx: &mut ViewContext<Self>,
11281 ) -> Option<String> {
11282 Some(
11283 self.buffer
11284 .read(cx)
11285 .read(cx)
11286 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11287 .collect(),
11288 )
11289 }
11290
11291 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11292 // Prevent the IME menu from appearing when holding down an alphabetic key
11293 // while input is disabled.
11294 if !self.input_enabled {
11295 return None;
11296 }
11297
11298 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11299 Some(range.start.0..range.end.0)
11300 }
11301
11302 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11303 let snapshot = self.buffer.read(cx).read(cx);
11304 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11305 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11306 }
11307
11308 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11309 self.clear_highlights::<InputComposition>(cx);
11310 self.ime_transaction.take();
11311 }
11312
11313 fn replace_text_in_range(
11314 &mut self,
11315 range_utf16: Option<Range<usize>>,
11316 text: &str,
11317 cx: &mut ViewContext<Self>,
11318 ) {
11319 if !self.input_enabled {
11320 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11321 return;
11322 }
11323
11324 self.transact(cx, |this, cx| {
11325 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11326 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11327 Some(this.selection_replacement_ranges(range_utf16, cx))
11328 } else {
11329 this.marked_text_ranges(cx)
11330 };
11331
11332 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11333 let newest_selection_id = this.selections.newest_anchor().id;
11334 this.selections
11335 .all::<OffsetUtf16>(cx)
11336 .iter()
11337 .zip(ranges_to_replace.iter())
11338 .find_map(|(selection, range)| {
11339 if selection.id == newest_selection_id {
11340 Some(
11341 (range.start.0 as isize - selection.head().0 as isize)
11342 ..(range.end.0 as isize - selection.head().0 as isize),
11343 )
11344 } else {
11345 None
11346 }
11347 })
11348 });
11349
11350 cx.emit(EditorEvent::InputHandled {
11351 utf16_range_to_replace: range_to_replace,
11352 text: text.into(),
11353 });
11354
11355 if let Some(new_selected_ranges) = new_selected_ranges {
11356 this.change_selections(None, cx, |selections| {
11357 selections.select_ranges(new_selected_ranges)
11358 });
11359 this.backspace(&Default::default(), cx);
11360 }
11361
11362 this.handle_input(text, cx);
11363 });
11364
11365 if let Some(transaction) = self.ime_transaction {
11366 self.buffer.update(cx, |buffer, cx| {
11367 buffer.group_until_transaction(transaction, cx);
11368 });
11369 }
11370
11371 self.unmark_text(cx);
11372 }
11373
11374 fn replace_and_mark_text_in_range(
11375 &mut self,
11376 range_utf16: Option<Range<usize>>,
11377 text: &str,
11378 new_selected_range_utf16: Option<Range<usize>>,
11379 cx: &mut ViewContext<Self>,
11380 ) {
11381 if !self.input_enabled {
11382 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11383 return;
11384 }
11385
11386 let transaction = self.transact(cx, |this, cx| {
11387 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11388 let snapshot = this.buffer.read(cx).read(cx);
11389 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11390 for marked_range in &mut marked_ranges {
11391 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11392 marked_range.start.0 += relative_range_utf16.start;
11393 marked_range.start =
11394 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11395 marked_range.end =
11396 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11397 }
11398 }
11399 Some(marked_ranges)
11400 } else if let Some(range_utf16) = range_utf16 {
11401 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11402 Some(this.selection_replacement_ranges(range_utf16, cx))
11403 } else {
11404 None
11405 };
11406
11407 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11408 let newest_selection_id = this.selections.newest_anchor().id;
11409 this.selections
11410 .all::<OffsetUtf16>(cx)
11411 .iter()
11412 .zip(ranges_to_replace.iter())
11413 .find_map(|(selection, range)| {
11414 if selection.id == newest_selection_id {
11415 Some(
11416 (range.start.0 as isize - selection.head().0 as isize)
11417 ..(range.end.0 as isize - selection.head().0 as isize),
11418 )
11419 } else {
11420 None
11421 }
11422 })
11423 });
11424
11425 cx.emit(EditorEvent::InputHandled {
11426 utf16_range_to_replace: range_to_replace,
11427 text: text.into(),
11428 });
11429
11430 if let Some(ranges) = ranges_to_replace {
11431 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11432 }
11433
11434 let marked_ranges = {
11435 let snapshot = this.buffer.read(cx).read(cx);
11436 this.selections
11437 .disjoint_anchors()
11438 .iter()
11439 .map(|selection| {
11440 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11441 })
11442 .collect::<Vec<_>>()
11443 };
11444
11445 if text.is_empty() {
11446 this.unmark_text(cx);
11447 } else {
11448 this.highlight_text::<InputComposition>(
11449 marked_ranges.clone(),
11450 HighlightStyle {
11451 underline: Some(UnderlineStyle {
11452 thickness: px(1.),
11453 color: None,
11454 wavy: false,
11455 }),
11456 ..Default::default()
11457 },
11458 cx,
11459 );
11460 }
11461
11462 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11463 let use_autoclose = this.use_autoclose;
11464 this.set_use_autoclose(false);
11465 this.handle_input(text, cx);
11466 this.set_use_autoclose(use_autoclose);
11467
11468 if let Some(new_selected_range) = new_selected_range_utf16 {
11469 let snapshot = this.buffer.read(cx).read(cx);
11470 let new_selected_ranges = marked_ranges
11471 .into_iter()
11472 .map(|marked_range| {
11473 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11474 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11475 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11476 snapshot.clip_offset_utf16(new_start, Bias::Left)
11477 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11478 })
11479 .collect::<Vec<_>>();
11480
11481 drop(snapshot);
11482 this.change_selections(None, cx, |selections| {
11483 selections.select_ranges(new_selected_ranges)
11484 });
11485 }
11486 });
11487
11488 self.ime_transaction = self.ime_transaction.or(transaction);
11489 if let Some(transaction) = self.ime_transaction {
11490 self.buffer.update(cx, |buffer, cx| {
11491 buffer.group_until_transaction(transaction, cx);
11492 });
11493 }
11494
11495 if self.text_highlights::<InputComposition>(cx).is_none() {
11496 self.ime_transaction.take();
11497 }
11498 }
11499
11500 fn bounds_for_range(
11501 &mut self,
11502 range_utf16: Range<usize>,
11503 element_bounds: gpui::Bounds<Pixels>,
11504 cx: &mut ViewContext<Self>,
11505 ) -> Option<gpui::Bounds<Pixels>> {
11506 let text_layout_details = self.text_layout_details(cx);
11507 let style = &text_layout_details.editor_style;
11508 let font_id = cx.text_system().resolve_font(&style.text.font());
11509 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11510 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11511 let em_width = cx
11512 .text_system()
11513 .typographic_bounds(font_id, font_size, 'm')
11514 .unwrap()
11515 .size
11516 .width;
11517
11518 let snapshot = self.snapshot(cx);
11519 let scroll_position = snapshot.scroll_position();
11520 let scroll_left = scroll_position.x * em_width;
11521
11522 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11523 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11524 + self.gutter_dimensions.width;
11525 let y = line_height * (start.row().as_f32() - scroll_position.y);
11526
11527 Some(Bounds {
11528 origin: element_bounds.origin + point(x, y),
11529 size: size(em_width, line_height),
11530 })
11531 }
11532}
11533
11534trait SelectionExt {
11535 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11536 fn spanned_rows(
11537 &self,
11538 include_end_if_at_line_start: bool,
11539 map: &DisplaySnapshot,
11540 ) -> Range<MultiBufferRow>;
11541}
11542
11543impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11544 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11545 let start = self
11546 .start
11547 .to_point(&map.buffer_snapshot)
11548 .to_display_point(map);
11549 let end = self
11550 .end
11551 .to_point(&map.buffer_snapshot)
11552 .to_display_point(map);
11553 if self.reversed {
11554 end..start
11555 } else {
11556 start..end
11557 }
11558 }
11559
11560 fn spanned_rows(
11561 &self,
11562 include_end_if_at_line_start: bool,
11563 map: &DisplaySnapshot,
11564 ) -> Range<MultiBufferRow> {
11565 let start = self.start.to_point(&map.buffer_snapshot);
11566 let mut end = self.end.to_point(&map.buffer_snapshot);
11567 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11568 end.row -= 1;
11569 }
11570
11571 let buffer_start = map.prev_line_boundary(start).0;
11572 let buffer_end = map.next_line_boundary(end).0;
11573 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11574 }
11575}
11576
11577impl<T: InvalidationRegion> InvalidationStack<T> {
11578 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11579 where
11580 S: Clone + ToOffset,
11581 {
11582 while let Some(region) = self.last() {
11583 let all_selections_inside_invalidation_ranges =
11584 if selections.len() == region.ranges().len() {
11585 selections
11586 .iter()
11587 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11588 .all(|(selection, invalidation_range)| {
11589 let head = selection.head().to_offset(buffer);
11590 invalidation_range.start <= head && invalidation_range.end >= head
11591 })
11592 } else {
11593 false
11594 };
11595
11596 if all_selections_inside_invalidation_ranges {
11597 break;
11598 } else {
11599 self.pop();
11600 }
11601 }
11602 }
11603}
11604
11605impl<T> Default for InvalidationStack<T> {
11606 fn default() -> Self {
11607 Self(Default::default())
11608 }
11609}
11610
11611impl<T> Deref for InvalidationStack<T> {
11612 type Target = Vec<T>;
11613
11614 fn deref(&self) -> &Self::Target {
11615 &self.0
11616 }
11617}
11618
11619impl<T> DerefMut for InvalidationStack<T> {
11620 fn deref_mut(&mut self) -> &mut Self::Target {
11621 &mut self.0
11622 }
11623}
11624
11625impl InvalidationRegion for SnippetState {
11626 fn ranges(&self) -> &[Range<Anchor>] {
11627 &self.ranges[self.active_index]
11628 }
11629}
11630
11631pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11632 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11633
11634 Box::new(move |cx: &mut BlockContext| {
11635 let group_id: SharedString = cx.block_id.to_string().into();
11636
11637 let mut text_style = cx.text_style().clone();
11638 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11639 let theme_settings = ThemeSettings::get_global(cx);
11640 text_style.font_family = theme_settings.buffer_font.family.clone();
11641 text_style.font_style = theme_settings.buffer_font.style;
11642 text_style.font_features = theme_settings.buffer_font.features.clone();
11643 text_style.font_weight = theme_settings.buffer_font.weight;
11644
11645 let multi_line_diagnostic = diagnostic.message.contains('\n');
11646
11647 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11648 if multi_line_diagnostic {
11649 v_flex()
11650 } else {
11651 h_flex()
11652 }
11653 .children(diagnostic.is_primary.then(|| {
11654 IconButton::new(("close-block", block_id), IconName::XCircle)
11655 .icon_color(Color::Muted)
11656 .size(ButtonSize::Compact)
11657 .style(ButtonStyle::Transparent)
11658 .visible_on_hover(group_id.clone())
11659 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11660 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11661 }))
11662 .child(
11663 IconButton::new(("copy-block", block_id), IconName::Copy)
11664 .icon_color(Color::Muted)
11665 .size(ButtonSize::Compact)
11666 .style(ButtonStyle::Transparent)
11667 .visible_on_hover(group_id.clone())
11668 .on_click({
11669 let message = diagnostic.message.clone();
11670 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11671 })
11672 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11673 )
11674 };
11675
11676 let icon_size = buttons(&diagnostic, cx.block_id)
11677 .into_any_element()
11678 .layout_as_root(AvailableSpace::min_size(), cx);
11679
11680 h_flex()
11681 .id(cx.block_id)
11682 .group(group_id.clone())
11683 .relative()
11684 .size_full()
11685 .pl(cx.gutter_dimensions.width)
11686 .w(cx.max_width + cx.gutter_dimensions.width)
11687 .child(
11688 div()
11689 .flex()
11690 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11691 .flex_shrink(),
11692 )
11693 .child(buttons(&diagnostic, cx.block_id))
11694 .child(div().flex().flex_shrink_0().child(
11695 StyledText::new(text_without_backticks.clone()).with_highlights(
11696 &text_style,
11697 code_ranges.iter().map(|range| {
11698 (
11699 range.clone(),
11700 HighlightStyle {
11701 font_weight: Some(FontWeight::BOLD),
11702 ..Default::default()
11703 },
11704 )
11705 }),
11706 ),
11707 ))
11708 .into_any_element()
11709 })
11710}
11711
11712pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11713 let mut text_without_backticks = String::new();
11714 let mut code_ranges = Vec::new();
11715
11716 if let Some(source) = &diagnostic.source {
11717 text_without_backticks.push_str(&source);
11718 code_ranges.push(0..source.len());
11719 text_without_backticks.push_str(": ");
11720 }
11721
11722 let mut prev_offset = 0;
11723 let mut in_code_block = false;
11724 for (ix, _) in diagnostic
11725 .message
11726 .match_indices('`')
11727 .chain([(diagnostic.message.len(), "")])
11728 {
11729 let prev_len = text_without_backticks.len();
11730 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11731 prev_offset = ix + 1;
11732 if in_code_block {
11733 code_ranges.push(prev_len..text_without_backticks.len());
11734 in_code_block = false;
11735 } else {
11736 in_code_block = true;
11737 }
11738 }
11739
11740 (text_without_backticks.into(), code_ranges)
11741}
11742
11743fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11744 match (severity, valid) {
11745 (DiagnosticSeverity::ERROR, true) => colors.error,
11746 (DiagnosticSeverity::ERROR, false) => colors.error,
11747 (DiagnosticSeverity::WARNING, true) => colors.warning,
11748 (DiagnosticSeverity::WARNING, false) => colors.warning,
11749 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11750 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11751 (DiagnosticSeverity::HINT, true) => colors.info,
11752 (DiagnosticSeverity::HINT, false) => colors.info,
11753 _ => colors.ignored,
11754 }
11755}
11756
11757pub fn styled_runs_for_code_label<'a>(
11758 label: &'a CodeLabel,
11759 syntax_theme: &'a theme::SyntaxTheme,
11760) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11761 let fade_out = HighlightStyle {
11762 fade_out: Some(0.35),
11763 ..Default::default()
11764 };
11765
11766 let mut prev_end = label.filter_range.end;
11767 label
11768 .runs
11769 .iter()
11770 .enumerate()
11771 .flat_map(move |(ix, (range, highlight_id))| {
11772 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11773 style
11774 } else {
11775 return Default::default();
11776 };
11777 let mut muted_style = style;
11778 muted_style.highlight(fade_out);
11779
11780 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11781 if range.start >= label.filter_range.end {
11782 if range.start > prev_end {
11783 runs.push((prev_end..range.start, fade_out));
11784 }
11785 runs.push((range.clone(), muted_style));
11786 } else if range.end <= label.filter_range.end {
11787 runs.push((range.clone(), style));
11788 } else {
11789 runs.push((range.start..label.filter_range.end, style));
11790 runs.push((label.filter_range.end..range.end, muted_style));
11791 }
11792 prev_end = cmp::max(prev_end, range.end);
11793
11794 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11795 runs.push((prev_end..label.text.len(), fade_out));
11796 }
11797
11798 runs
11799 })
11800}
11801
11802pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11803 let mut prev_index = 0;
11804 let mut prev_codepoint: Option<char> = None;
11805 text.char_indices()
11806 .chain([(text.len(), '\0')])
11807 .filter_map(move |(index, codepoint)| {
11808 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11809 let is_boundary = index == text.len()
11810 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11811 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11812 if is_boundary {
11813 let chunk = &text[prev_index..index];
11814 prev_index = index;
11815 Some(chunk)
11816 } else {
11817 None
11818 }
11819 })
11820}
11821
11822trait RangeToAnchorExt {
11823 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11824}
11825
11826impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11827 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11828 let start_offset = self.start.to_offset(snapshot);
11829 let end_offset = self.end.to_offset(snapshot);
11830 if start_offset == end_offset {
11831 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11832 } else {
11833 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11834 }
11835 }
11836}
11837
11838pub trait RowExt {
11839 fn as_f32(&self) -> f32;
11840
11841 fn next_row(&self) -> Self;
11842
11843 fn previous_row(&self) -> Self;
11844
11845 fn minus(&self, other: Self) -> u32;
11846}
11847
11848impl RowExt for DisplayRow {
11849 fn as_f32(&self) -> f32 {
11850 self.0 as f32
11851 }
11852
11853 fn next_row(&self) -> Self {
11854 Self(self.0 + 1)
11855 }
11856
11857 fn previous_row(&self) -> Self {
11858 Self(self.0.saturating_sub(1))
11859 }
11860
11861 fn minus(&self, other: Self) -> u32 {
11862 self.0 - other.0
11863 }
11864}
11865
11866impl RowExt for MultiBufferRow {
11867 fn as_f32(&self) -> f32 {
11868 self.0 as f32
11869 }
11870
11871 fn next_row(&self) -> Self {
11872 Self(self.0 + 1)
11873 }
11874
11875 fn previous_row(&self) -> Self {
11876 Self(self.0.saturating_sub(1))
11877 }
11878
11879 fn minus(&self, other: Self) -> u32 {
11880 self.0 - other.0
11881 }
11882}
11883
11884trait RowRangeExt {
11885 type Row;
11886
11887 fn len(&self) -> usize;
11888
11889 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
11890}
11891
11892impl RowRangeExt for Range<MultiBufferRow> {
11893 type Row = MultiBufferRow;
11894
11895 fn len(&self) -> usize {
11896 (self.end.0 - self.start.0) as usize
11897 }
11898
11899 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
11900 (self.start.0..self.end.0).map(MultiBufferRow)
11901 }
11902}
11903
11904impl RowRangeExt for Range<DisplayRow> {
11905 type Row = DisplayRow;
11906
11907 fn len(&self) -> usize {
11908 (self.end.0 - self.start.0) as usize
11909 }
11910
11911 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
11912 (self.start.0..self.end.0).map(DisplayRow)
11913 }
11914}
11915
11916fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
11917 if hunk.diff_base_byte_range.is_empty() {
11918 DiffHunkStatus::Added
11919 } else if hunk.associated_range.is_empty() {
11920 DiffHunkStatus::Removed
11921 } else {
11922 DiffHunkStatus::Modified
11923 }
11924}