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 goal_column: u32,
306 },
307 Extend {
308 position: DisplayPoint,
309 click_count: usize,
310 },
311 Update {
312 position: DisplayPoint,
313 goal_column: u32,
314 scroll_delta: gpui::Point<f32>,
315 },
316 End,
317}
318
319#[derive(Clone, Debug)]
320pub enum SelectMode {
321 Character,
322 Word(Range<Anchor>),
323 Line(Range<Anchor>),
324 All,
325}
326
327#[derive(Copy, Clone, PartialEq, Eq, Debug)]
328pub enum EditorMode {
329 SingleLine,
330 AutoHeight { max_lines: usize },
331 Full,
332}
333
334#[derive(Clone, Debug)]
335pub enum SoftWrap {
336 None,
337 PreferLine,
338 EditorWidth,
339 Column(u32),
340}
341
342#[derive(Clone)]
343pub struct EditorStyle {
344 pub background: Hsla,
345 pub local_player: PlayerColor,
346 pub text: TextStyle,
347 pub scrollbar_width: Pixels,
348 pub syntax: Arc<SyntaxTheme>,
349 pub status: StatusColors,
350 pub inlay_hints_style: HighlightStyle,
351 pub suggestions_style: HighlightStyle,
352}
353
354impl Default for EditorStyle {
355 fn default() -> Self {
356 Self {
357 background: Hsla::default(),
358 local_player: PlayerColor::default(),
359 text: TextStyle::default(),
360 scrollbar_width: Pixels::default(),
361 syntax: Default::default(),
362 // HACK: Status colors don't have a real default.
363 // We should look into removing the status colors from the editor
364 // style and retrieve them directly from the theme.
365 status: StatusColors::dark(),
366 inlay_hints_style: HighlightStyle::default(),
367 suggestions_style: HighlightStyle::default(),
368 }
369 }
370}
371
372type CompletionId = usize;
373
374// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
375// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
376
377type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
378
379struct ScrollbarMarkerState {
380 scrollbar_size: Size<Pixels>,
381 dirty: bool,
382 markers: Arc<[PaintQuad]>,
383 pending_refresh: Option<Task<Result<()>>>,
384}
385
386impl ScrollbarMarkerState {
387 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
388 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
389 }
390}
391
392impl Default for ScrollbarMarkerState {
393 fn default() -> Self {
394 Self {
395 scrollbar_size: Size::default(),
396 dirty: false,
397 markers: Arc::from([]),
398 pending_refresh: None,
399 }
400 }
401}
402
403#[derive(Clone, Debug)]
404struct RunnableTasks {
405 templates: Vec<(TaskSourceKind, TaskTemplate)>,
406 // We need the column at which the task context evaluation should take place.
407 column: u32,
408 extra_variables: HashMap<String, String>,
409}
410
411#[derive(Clone)]
412struct ResolvedTasks {
413 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
414 position: Anchor,
415}
416
417/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
418///
419/// See the [module level documentation](self) for more information.
420pub struct Editor {
421 focus_handle: FocusHandle,
422 /// The text buffer being edited
423 buffer: Model<MultiBuffer>,
424 /// Map of how text in the buffer should be displayed.
425 /// Handles soft wraps, folds, fake inlay text insertions, etc.
426 pub display_map: Model<DisplayMap>,
427 pub selections: SelectionsCollection,
428 pub scroll_manager: ScrollManager,
429 columnar_selection_tail: Option<Anchor>,
430 add_selections_state: Option<AddSelectionsState>,
431 select_next_state: Option<SelectNextState>,
432 select_prev_state: Option<SelectNextState>,
433 selection_history: SelectionHistory,
434 autoclose_regions: Vec<AutocloseRegion>,
435 snippet_stack: InvalidationStack<SnippetState>,
436 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
437 ime_transaction: Option<TransactionId>,
438 active_diagnostics: Option<ActiveDiagnosticGroup>,
439 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
440 project: Option<Model<Project>>,
441 completion_provider: Option<Box<dyn CompletionProvider>>,
442 collaboration_hub: Option<Box<dyn CollaborationHub>>,
443 blink_manager: Model<BlinkManager>,
444 show_cursor_names: bool,
445 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
446 pub show_local_selections: bool,
447 mode: EditorMode,
448 show_breadcrumbs: bool,
449 show_gutter: bool,
450 show_wrap_guides: Option<bool>,
451 placeholder_text: Option<Arc<str>>,
452 highlight_order: usize,
453 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
454 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
455 scrollbar_marker_state: ScrollbarMarkerState,
456 nav_history: Option<ItemNavHistory>,
457 context_menu: RwLock<Option<ContextMenu>>,
458 mouse_context_menu: Option<MouseContextMenu>,
459 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
460 find_all_references_task_sources: Vec<Anchor>,
461 next_completion_id: CompletionId,
462 completion_documentation_pre_resolve_debounce: DebouncedDelay,
463 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
464 code_actions_task: Option<Task<()>>,
465 document_highlights_task: Option<Task<()>>,
466 pending_rename: Option<RenameState>,
467 searchable: bool,
468 cursor_shape: CursorShape,
469 current_line_highlight: CurrentLineHighlight,
470 collapse_matches: bool,
471 autoindent_mode: Option<AutoindentMode>,
472 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
473 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
474 input_enabled: bool,
475 use_modal_editing: bool,
476 read_only: bool,
477 leader_peer_id: Option<PeerId>,
478 remote_id: Option<ViewId>,
479 hover_state: HoverState,
480 gutter_hovered: bool,
481 hovered_link_state: Option<HoveredLinkState>,
482 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
483 active_inline_completion: Option<Inlay>,
484 show_inline_completions: bool,
485 inlay_hint_cache: InlayHintCache,
486 expanded_hunks: ExpandedHunks,
487 next_inlay_id: usize,
488 _subscriptions: Vec<Subscription>,
489 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
490 gutter_dimensions: GutterDimensions,
491 pub vim_replace_map: HashMap<Range<usize>, String>,
492 style: Option<EditorStyle>,
493 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
494 use_autoclose: bool,
495 auto_replace_emoji_shortcode: bool,
496 show_git_blame_gutter: bool,
497 show_git_blame_inline: bool,
498 show_git_blame_inline_delay_task: Option<Task<()>>,
499 git_blame_inline_enabled: bool,
500 blame: Option<Model<GitBlame>>,
501 blame_subscription: Option<Subscription>,
502 custom_context_menu: Option<
503 Box<
504 dyn 'static
505 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
506 >,
507 >,
508 last_bounds: Option<Bounds<Pixels>>,
509 expect_bounds_change: Option<Bounds<Pixels>>,
510 tasks: HashMap<(BufferId, BufferRow), (usize, RunnableTasks)>,
511 tasks_update_task: Option<Task<()>>,
512}
513
514#[derive(Clone)]
515pub struct EditorSnapshot {
516 pub mode: EditorMode,
517 show_gutter: bool,
518 render_git_blame_gutter: bool,
519 pub display_snapshot: DisplaySnapshot,
520 pub placeholder_text: Option<Arc<str>>,
521 is_focused: bool,
522 scroll_anchor: ScrollAnchor,
523 ongoing_scroll: OngoingScroll,
524 current_line_highlight: CurrentLineHighlight,
525}
526
527const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
528
529#[derive(Debug, Clone, Copy)]
530pub struct GutterDimensions {
531 pub left_padding: Pixels,
532 pub right_padding: Pixels,
533 pub width: Pixels,
534 pub margin: Pixels,
535 pub git_blame_entries_width: Option<Pixels>,
536}
537
538impl Default for GutterDimensions {
539 fn default() -> Self {
540 Self {
541 left_padding: Pixels::ZERO,
542 right_padding: Pixels::ZERO,
543 width: Pixels::ZERO,
544 margin: Pixels::ZERO,
545 git_blame_entries_width: None,
546 }
547 }
548}
549
550#[derive(Debug)]
551pub struct RemoteSelection {
552 pub replica_id: ReplicaId,
553 pub selection: Selection<Anchor>,
554 pub cursor_shape: CursorShape,
555 pub peer_id: PeerId,
556 pub line_mode: bool,
557 pub participant_index: Option<ParticipantIndex>,
558 pub user_name: Option<SharedString>,
559}
560
561#[derive(Clone, Debug)]
562struct SelectionHistoryEntry {
563 selections: Arc<[Selection<Anchor>]>,
564 select_next_state: Option<SelectNextState>,
565 select_prev_state: Option<SelectNextState>,
566 add_selections_state: Option<AddSelectionsState>,
567}
568
569enum SelectionHistoryMode {
570 Normal,
571 Undoing,
572 Redoing,
573}
574
575#[derive(Clone, PartialEq, Eq, Hash)]
576struct HoveredCursor {
577 replica_id: u16,
578 selection_id: usize,
579}
580
581impl Default for SelectionHistoryMode {
582 fn default() -> Self {
583 Self::Normal
584 }
585}
586
587#[derive(Default)]
588struct SelectionHistory {
589 #[allow(clippy::type_complexity)]
590 selections_by_transaction:
591 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
592 mode: SelectionHistoryMode,
593 undo_stack: VecDeque<SelectionHistoryEntry>,
594 redo_stack: VecDeque<SelectionHistoryEntry>,
595}
596
597impl SelectionHistory {
598 fn insert_transaction(
599 &mut self,
600 transaction_id: TransactionId,
601 selections: Arc<[Selection<Anchor>]>,
602 ) {
603 self.selections_by_transaction
604 .insert(transaction_id, (selections, None));
605 }
606
607 #[allow(clippy::type_complexity)]
608 fn transaction(
609 &self,
610 transaction_id: TransactionId,
611 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
612 self.selections_by_transaction.get(&transaction_id)
613 }
614
615 #[allow(clippy::type_complexity)]
616 fn transaction_mut(
617 &mut self,
618 transaction_id: TransactionId,
619 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
620 self.selections_by_transaction.get_mut(&transaction_id)
621 }
622
623 fn push(&mut self, entry: SelectionHistoryEntry) {
624 if !entry.selections.is_empty() {
625 match self.mode {
626 SelectionHistoryMode::Normal => {
627 self.push_undo(entry);
628 self.redo_stack.clear();
629 }
630 SelectionHistoryMode::Undoing => self.push_redo(entry),
631 SelectionHistoryMode::Redoing => self.push_undo(entry),
632 }
633 }
634 }
635
636 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
637 if self
638 .undo_stack
639 .back()
640 .map_or(true, |e| e.selections != entry.selections)
641 {
642 self.undo_stack.push_back(entry);
643 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
644 self.undo_stack.pop_front();
645 }
646 }
647 }
648
649 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
650 if self
651 .redo_stack
652 .back()
653 .map_or(true, |e| e.selections != entry.selections)
654 {
655 self.redo_stack.push_back(entry);
656 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
657 self.redo_stack.pop_front();
658 }
659 }
660 }
661}
662
663struct RowHighlight {
664 index: usize,
665 range: RangeInclusive<Anchor>,
666 color: Option<Hsla>,
667 should_autoscroll: bool,
668}
669
670#[derive(Clone, Debug)]
671struct AddSelectionsState {
672 above: bool,
673 stack: Vec<usize>,
674}
675
676#[derive(Clone)]
677struct SelectNextState {
678 query: AhoCorasick,
679 wordwise: bool,
680 done: bool,
681}
682
683impl std::fmt::Debug for SelectNextState {
684 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
685 f.debug_struct(std::any::type_name::<Self>())
686 .field("wordwise", &self.wordwise)
687 .field("done", &self.done)
688 .finish()
689 }
690}
691
692#[derive(Debug)]
693struct AutocloseRegion {
694 selection_id: usize,
695 range: Range<Anchor>,
696 pair: BracketPair,
697}
698
699#[derive(Debug)]
700struct SnippetState {
701 ranges: Vec<Vec<Range<Anchor>>>,
702 active_index: usize,
703}
704
705#[doc(hidden)]
706pub struct RenameState {
707 pub range: Range<Anchor>,
708 pub old_name: Arc<str>,
709 pub editor: View<Editor>,
710 block_id: BlockId,
711}
712
713struct InvalidationStack<T>(Vec<T>);
714
715struct RegisteredInlineCompletionProvider {
716 provider: Arc<dyn InlineCompletionProviderHandle>,
717 _subscription: Subscription,
718}
719
720enum ContextMenu {
721 Completions(CompletionsMenu),
722 CodeActions(CodeActionsMenu),
723}
724
725impl ContextMenu {
726 fn select_first(
727 &mut self,
728 project: Option<&Model<Project>>,
729 cx: &mut ViewContext<Editor>,
730 ) -> bool {
731 if self.visible() {
732 match self {
733 ContextMenu::Completions(menu) => menu.select_first(project, cx),
734 ContextMenu::CodeActions(menu) => menu.select_first(cx),
735 }
736 true
737 } else {
738 false
739 }
740 }
741
742 fn select_prev(
743 &mut self,
744 project: Option<&Model<Project>>,
745 cx: &mut ViewContext<Editor>,
746 ) -> bool {
747 if self.visible() {
748 match self {
749 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
750 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
751 }
752 true
753 } else {
754 false
755 }
756 }
757
758 fn select_next(
759 &mut self,
760 project: Option<&Model<Project>>,
761 cx: &mut ViewContext<Editor>,
762 ) -> bool {
763 if self.visible() {
764 match self {
765 ContextMenu::Completions(menu) => menu.select_next(project, cx),
766 ContextMenu::CodeActions(menu) => menu.select_next(cx),
767 }
768 true
769 } else {
770 false
771 }
772 }
773
774 fn select_last(
775 &mut self,
776 project: Option<&Model<Project>>,
777 cx: &mut ViewContext<Editor>,
778 ) -> bool {
779 if self.visible() {
780 match self {
781 ContextMenu::Completions(menu) => menu.select_last(project, cx),
782 ContextMenu::CodeActions(menu) => menu.select_last(cx),
783 }
784 true
785 } else {
786 false
787 }
788 }
789
790 fn visible(&self) -> bool {
791 match self {
792 ContextMenu::Completions(menu) => menu.visible(),
793 ContextMenu::CodeActions(menu) => menu.visible(),
794 }
795 }
796
797 fn render(
798 &self,
799 cursor_position: DisplayPoint,
800 style: &EditorStyle,
801 max_height: Pixels,
802 workspace: Option<WeakView<Workspace>>,
803 cx: &mut ViewContext<Editor>,
804 ) -> (ContextMenuOrigin, AnyElement) {
805 match self {
806 ContextMenu::Completions(menu) => (
807 ContextMenuOrigin::EditorPoint(cursor_position),
808 menu.render(style, max_height, workspace, cx),
809 ),
810 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
811 }
812 }
813}
814
815enum ContextMenuOrigin {
816 EditorPoint(DisplayPoint),
817 GutterIndicator(DisplayRow),
818}
819
820#[derive(Clone)]
821struct CompletionsMenu {
822 id: CompletionId,
823 initial_position: Anchor,
824 buffer: Model<Buffer>,
825 completions: Arc<RwLock<Box<[Completion]>>>,
826 match_candidates: Arc<[StringMatchCandidate]>,
827 matches: Arc<[StringMatch]>,
828 selected_item: usize,
829 scroll_handle: UniformListScrollHandle,
830 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
831}
832
833impl CompletionsMenu {
834 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
835 self.selected_item = 0;
836 self.scroll_handle.scroll_to_item(self.selected_item);
837 self.attempt_resolve_selected_completion_documentation(project, cx);
838 cx.notify();
839 }
840
841 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
842 if self.selected_item > 0 {
843 self.selected_item -= 1;
844 } else {
845 self.selected_item = self.matches.len() - 1;
846 }
847 self.scroll_handle.scroll_to_item(self.selected_item);
848 self.attempt_resolve_selected_completion_documentation(project, cx);
849 cx.notify();
850 }
851
852 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
853 if self.selected_item + 1 < self.matches.len() {
854 self.selected_item += 1;
855 } else {
856 self.selected_item = 0;
857 }
858 self.scroll_handle.scroll_to_item(self.selected_item);
859 self.attempt_resolve_selected_completion_documentation(project, cx);
860 cx.notify();
861 }
862
863 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
864 self.selected_item = self.matches.len() - 1;
865 self.scroll_handle.scroll_to_item(self.selected_item);
866 self.attempt_resolve_selected_completion_documentation(project, cx);
867 cx.notify();
868 }
869
870 fn pre_resolve_completion_documentation(
871 buffer: Model<Buffer>,
872 completions: Arc<RwLock<Box<[Completion]>>>,
873 matches: Arc<[StringMatch]>,
874 editor: &Editor,
875 cx: &mut ViewContext<Editor>,
876 ) -> Task<()> {
877 let settings = EditorSettings::get_global(cx);
878 if !settings.show_completion_documentation {
879 return Task::ready(());
880 }
881
882 let Some(provider) = editor.completion_provider.as_ref() else {
883 return Task::ready(());
884 };
885
886 let resolve_task = provider.resolve_completions(
887 buffer,
888 matches.iter().map(|m| m.candidate_id).collect(),
889 completions.clone(),
890 cx,
891 );
892
893 return cx.spawn(move |this, mut cx| async move {
894 if let Some(true) = resolve_task.await.log_err() {
895 this.update(&mut cx, |_, cx| cx.notify()).ok();
896 }
897 });
898 }
899
900 fn attempt_resolve_selected_completion_documentation(
901 &mut self,
902 project: Option<&Model<Project>>,
903 cx: &mut ViewContext<Editor>,
904 ) {
905 let settings = EditorSettings::get_global(cx);
906 if !settings.show_completion_documentation {
907 return;
908 }
909
910 let completion_index = self.matches[self.selected_item].candidate_id;
911 let Some(project) = project else {
912 return;
913 };
914
915 let resolve_task = project.update(cx, |project, cx| {
916 project.resolve_completions(
917 self.buffer.clone(),
918 vec![completion_index],
919 self.completions.clone(),
920 cx,
921 )
922 });
923
924 let delay_ms =
925 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
926 let delay = Duration::from_millis(delay_ms);
927
928 self.selected_completion_documentation_resolve_debounce
929 .lock()
930 .fire_new(delay, cx, |_, cx| {
931 cx.spawn(move |this, mut cx| async move {
932 if let Some(true) = resolve_task.await.log_err() {
933 this.update(&mut cx, |_, cx| cx.notify()).ok();
934 }
935 })
936 });
937 }
938
939 fn visible(&self) -> bool {
940 !self.matches.is_empty()
941 }
942
943 fn render(
944 &self,
945 style: &EditorStyle,
946 max_height: Pixels,
947 workspace: Option<WeakView<Workspace>>,
948 cx: &mut ViewContext<Editor>,
949 ) -> AnyElement {
950 let settings = EditorSettings::get_global(cx);
951 let show_completion_documentation = settings.show_completion_documentation;
952
953 let widest_completion_ix = self
954 .matches
955 .iter()
956 .enumerate()
957 .max_by_key(|(_, mat)| {
958 let completions = self.completions.read();
959 let completion = &completions[mat.candidate_id];
960 let documentation = &completion.documentation;
961
962 let mut len = completion.label.text.chars().count();
963 if let Some(Documentation::SingleLine(text)) = documentation {
964 if show_completion_documentation {
965 len += text.chars().count();
966 }
967 }
968
969 len
970 })
971 .map(|(ix, _)| ix);
972
973 let completions = self.completions.clone();
974 let matches = self.matches.clone();
975 let selected_item = self.selected_item;
976 let style = style.clone();
977
978 let multiline_docs = if show_completion_documentation {
979 let mat = &self.matches[selected_item];
980 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
981 Some(Documentation::MultiLinePlainText(text)) => {
982 Some(div().child(SharedString::from(text.clone())))
983 }
984 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
985 Some(div().child(render_parsed_markdown(
986 "completions_markdown",
987 parsed,
988 &style,
989 workspace,
990 cx,
991 )))
992 }
993 _ => None,
994 };
995 multiline_docs.map(|div| {
996 div.id("multiline_docs")
997 .max_h(max_height)
998 .flex_1()
999 .px_1p5()
1000 .py_1()
1001 .min_w(px(260.))
1002 .max_w(px(640.))
1003 .w(px(500.))
1004 .overflow_y_scroll()
1005 .occlude()
1006 })
1007 } else {
1008 None
1009 };
1010
1011 let list = uniform_list(
1012 cx.view().clone(),
1013 "completions",
1014 matches.len(),
1015 move |_editor, range, cx| {
1016 let start_ix = range.start;
1017 let completions_guard = completions.read();
1018
1019 matches[range]
1020 .iter()
1021 .enumerate()
1022 .map(|(ix, mat)| {
1023 let item_ix = start_ix + ix;
1024 let candidate_id = mat.candidate_id;
1025 let completion = &completions_guard[candidate_id];
1026
1027 let documentation = if show_completion_documentation {
1028 &completion.documentation
1029 } else {
1030 &None
1031 };
1032
1033 let highlights = gpui::combine_highlights(
1034 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1035 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1036 |(range, mut highlight)| {
1037 // Ignore font weight for syntax highlighting, as we'll use it
1038 // for fuzzy matches.
1039 highlight.font_weight = None;
1040
1041 if completion.lsp_completion.deprecated.unwrap_or(false) {
1042 highlight.strikethrough = Some(StrikethroughStyle {
1043 thickness: 1.0.into(),
1044 ..Default::default()
1045 });
1046 highlight.color = Some(cx.theme().colors().text_muted);
1047 }
1048
1049 (range, highlight)
1050 },
1051 ),
1052 );
1053 let completion_label = StyledText::new(completion.label.text.clone())
1054 .with_highlights(&style.text, highlights);
1055 let documentation_label =
1056 if let Some(Documentation::SingleLine(text)) = documentation {
1057 if text.trim().is_empty() {
1058 None
1059 } else {
1060 Some(
1061 h_flex().ml_4().child(
1062 Label::new(text.clone())
1063 .size(LabelSize::Small)
1064 .color(Color::Muted),
1065 ),
1066 )
1067 }
1068 } else {
1069 None
1070 };
1071
1072 div().min_w(px(220.)).max_w(px(540.)).child(
1073 ListItem::new(mat.candidate_id)
1074 .inset(true)
1075 .selected(item_ix == selected_item)
1076 .on_click(cx.listener(move |editor, _event, cx| {
1077 cx.stop_propagation();
1078 if let Some(task) = editor.confirm_completion(
1079 &ConfirmCompletion {
1080 item_ix: Some(item_ix),
1081 },
1082 cx,
1083 ) {
1084 task.detach_and_log_err(cx)
1085 }
1086 }))
1087 .child(h_flex().overflow_hidden().child(completion_label))
1088 .end_slot::<Div>(documentation_label),
1089 )
1090 })
1091 .collect()
1092 },
1093 )
1094 .occlude()
1095 .max_h(max_height)
1096 .track_scroll(self.scroll_handle.clone())
1097 .with_width_from_item(widest_completion_ix);
1098
1099 Popover::new()
1100 .child(list)
1101 .when_some(multiline_docs, |popover, multiline_docs| {
1102 popover.aside(multiline_docs)
1103 })
1104 .into_any_element()
1105 }
1106
1107 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1108 let mut matches = if let Some(query) = query {
1109 fuzzy::match_strings(
1110 &self.match_candidates,
1111 query,
1112 query.chars().any(|c| c.is_uppercase()),
1113 100,
1114 &Default::default(),
1115 executor,
1116 )
1117 .await
1118 } else {
1119 self.match_candidates
1120 .iter()
1121 .enumerate()
1122 .map(|(candidate_id, candidate)| StringMatch {
1123 candidate_id,
1124 score: Default::default(),
1125 positions: Default::default(),
1126 string: candidate.string.clone(),
1127 })
1128 .collect()
1129 };
1130
1131 // Remove all candidates where the query's start does not match the start of any word in the candidate
1132 if let Some(query) = query {
1133 if let Some(query_start) = query.chars().next() {
1134 matches.retain(|string_match| {
1135 split_words(&string_match.string).any(|word| {
1136 // Check that the first codepoint of the word as lowercase matches the first
1137 // codepoint of the query as lowercase
1138 word.chars()
1139 .flat_map(|codepoint| codepoint.to_lowercase())
1140 .zip(query_start.to_lowercase())
1141 .all(|(word_cp, query_cp)| word_cp == query_cp)
1142 })
1143 });
1144 }
1145 }
1146
1147 let completions = self.completions.read();
1148 matches.sort_unstable_by_key(|mat| {
1149 // We do want to strike a balance here between what the language server tells us
1150 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1151 // `Creat` and there is a local variable called `CreateComponent`).
1152 // So what we do is: we bucket all matches into two buckets
1153 // - Strong matches
1154 // - Weak matches
1155 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1156 // and the Weak matches are the rest.
1157 //
1158 // For the strong matches, we sort by the language-servers score first and for the weak
1159 // matches, we prefer our fuzzy finder first.
1160 //
1161 // The thinking behind that: it's useless to take the sort_text the language-server gives
1162 // us into account when it's obviously a bad match.
1163
1164 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1165 enum MatchScore<'a> {
1166 Strong {
1167 sort_text: Option<&'a str>,
1168 score: Reverse<OrderedFloat<f64>>,
1169 sort_key: (usize, &'a str),
1170 },
1171 Weak {
1172 score: Reverse<OrderedFloat<f64>>,
1173 sort_text: Option<&'a str>,
1174 sort_key: (usize, &'a str),
1175 },
1176 }
1177
1178 let completion = &completions[mat.candidate_id];
1179 let sort_key = completion.sort_key();
1180 let sort_text = completion.lsp_completion.sort_text.as_deref();
1181 let score = Reverse(OrderedFloat(mat.score));
1182
1183 if mat.score >= 0.2 {
1184 MatchScore::Strong {
1185 sort_text,
1186 score,
1187 sort_key,
1188 }
1189 } else {
1190 MatchScore::Weak {
1191 score,
1192 sort_text,
1193 sort_key,
1194 }
1195 }
1196 });
1197
1198 for mat in &mut matches {
1199 let completion = &completions[mat.candidate_id];
1200 mat.string.clone_from(&completion.label.text);
1201 for position in &mut mat.positions {
1202 *position += completion.label.filter_range.start;
1203 }
1204 }
1205 drop(completions);
1206
1207 self.matches = matches.into();
1208 self.selected_item = 0;
1209 }
1210}
1211
1212#[derive(Clone)]
1213struct CodeActionContents {
1214 tasks: Option<Arc<ResolvedTasks>>,
1215 actions: Option<Arc<[CodeAction]>>,
1216}
1217
1218impl CodeActionContents {
1219 fn len(&self) -> usize {
1220 match (&self.tasks, &self.actions) {
1221 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1222 (Some(tasks), None) => tasks.templates.len(),
1223 (None, Some(actions)) => actions.len(),
1224 (None, None) => 0,
1225 }
1226 }
1227
1228 fn is_empty(&self) -> bool {
1229 match (&self.tasks, &self.actions) {
1230 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1231 (Some(tasks), None) => tasks.templates.is_empty(),
1232 (None, Some(actions)) => actions.is_empty(),
1233 (None, None) => true,
1234 }
1235 }
1236
1237 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1238 self.tasks
1239 .iter()
1240 .flat_map(|tasks| {
1241 tasks
1242 .templates
1243 .iter()
1244 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1245 })
1246 .chain(self.actions.iter().flat_map(|actions| {
1247 actions
1248 .iter()
1249 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1250 }))
1251 }
1252 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1253 match (&self.tasks, &self.actions) {
1254 (Some(tasks), Some(actions)) => {
1255 if index < tasks.templates.len() {
1256 tasks
1257 .templates
1258 .get(index)
1259 .cloned()
1260 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1261 } else {
1262 actions
1263 .get(index - tasks.templates.len())
1264 .cloned()
1265 .map(CodeActionsItem::CodeAction)
1266 }
1267 }
1268 (Some(tasks), None) => tasks
1269 .templates
1270 .get(index)
1271 .cloned()
1272 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1273 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1274 (None, None) => None,
1275 }
1276 }
1277}
1278
1279#[allow(clippy::large_enum_variant)]
1280#[derive(Clone)]
1281enum CodeActionsItem {
1282 Task(TaskSourceKind, ResolvedTask),
1283 CodeAction(CodeAction),
1284}
1285
1286impl CodeActionsItem {
1287 fn as_task(&self) -> Option<&ResolvedTask> {
1288 let Self::Task(_, task) = self else {
1289 return None;
1290 };
1291 Some(task)
1292 }
1293 fn as_code_action(&self) -> Option<&CodeAction> {
1294 let Self::CodeAction(action) = self else {
1295 return None;
1296 };
1297 Some(action)
1298 }
1299 fn label(&self) -> String {
1300 match self {
1301 Self::CodeAction(action) => action.lsp_action.title.clone(),
1302 Self::Task(_, task) => task.resolved_label.clone(),
1303 }
1304 }
1305}
1306
1307struct CodeActionsMenu {
1308 actions: CodeActionContents,
1309 buffer: Model<Buffer>,
1310 selected_item: usize,
1311 scroll_handle: UniformListScrollHandle,
1312 deployed_from_indicator: Option<DisplayRow>,
1313}
1314
1315impl CodeActionsMenu {
1316 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1317 self.selected_item = 0;
1318 self.scroll_handle.scroll_to_item(self.selected_item);
1319 cx.notify()
1320 }
1321
1322 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1323 if self.selected_item > 0 {
1324 self.selected_item -= 1;
1325 } else {
1326 self.selected_item = self.actions.len() - 1;
1327 }
1328 self.scroll_handle.scroll_to_item(self.selected_item);
1329 cx.notify();
1330 }
1331
1332 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1333 if self.selected_item + 1 < self.actions.len() {
1334 self.selected_item += 1;
1335 } else {
1336 self.selected_item = 0;
1337 }
1338 self.scroll_handle.scroll_to_item(self.selected_item);
1339 cx.notify();
1340 }
1341
1342 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1343 self.selected_item = self.actions.len() - 1;
1344 self.scroll_handle.scroll_to_item(self.selected_item);
1345 cx.notify()
1346 }
1347
1348 fn visible(&self) -> bool {
1349 !self.actions.is_empty()
1350 }
1351
1352 fn render(
1353 &self,
1354 cursor_position: DisplayPoint,
1355 _style: &EditorStyle,
1356 max_height: Pixels,
1357 cx: &mut ViewContext<Editor>,
1358 ) -> (ContextMenuOrigin, AnyElement) {
1359 let actions = self.actions.clone();
1360 let selected_item = self.selected_item;
1361 let element = uniform_list(
1362 cx.view().clone(),
1363 "code_actions_menu",
1364 self.actions.len(),
1365 move |_this, range, cx| {
1366 actions
1367 .iter()
1368 .skip(range.start)
1369 .take(range.end - range.start)
1370 .enumerate()
1371 .map(|(ix, action)| {
1372 let item_ix = range.start + ix;
1373 let selected = selected_item == item_ix;
1374 let colors = cx.theme().colors();
1375 div()
1376 .px_2()
1377 .text_color(colors.text)
1378 .when(selected, |style| {
1379 style
1380 .bg(colors.element_active)
1381 .text_color(colors.text_accent)
1382 })
1383 .hover(|style| {
1384 style
1385 .bg(colors.element_hover)
1386 .text_color(colors.text_accent)
1387 })
1388 .whitespace_nowrap()
1389 .when_some(action.as_code_action(), |this, action| {
1390 this.on_mouse_down(
1391 MouseButton::Left,
1392 cx.listener(move |editor, _, cx| {
1393 cx.stop_propagation();
1394 if let Some(task) = editor.confirm_code_action(
1395 &ConfirmCodeAction {
1396 item_ix: Some(item_ix),
1397 },
1398 cx,
1399 ) {
1400 task.detach_and_log_err(cx)
1401 }
1402 }),
1403 )
1404 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1405 .child(SharedString::from(action.lsp_action.title.clone()))
1406 })
1407 .when_some(action.as_task(), |this, task| {
1408 this.on_mouse_down(
1409 MouseButton::Left,
1410 cx.listener(move |editor, _, cx| {
1411 cx.stop_propagation();
1412 if let Some(task) = editor.confirm_code_action(
1413 &ConfirmCodeAction {
1414 item_ix: Some(item_ix),
1415 },
1416 cx,
1417 ) {
1418 task.detach_and_log_err(cx)
1419 }
1420 }),
1421 )
1422 .child(SharedString::from(task.resolved_label.clone()))
1423 })
1424 })
1425 .collect()
1426 },
1427 )
1428 .elevation_1(cx)
1429 .px_2()
1430 .py_1()
1431 .max_h(max_height)
1432 .occlude()
1433 .track_scroll(self.scroll_handle.clone())
1434 .with_width_from_item(
1435 self.actions
1436 .iter()
1437 .enumerate()
1438 .max_by_key(|(_, action)| match action {
1439 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1440 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1441 })
1442 .map(|(ix, _)| ix),
1443 )
1444 .into_any_element();
1445
1446 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1447 ContextMenuOrigin::GutterIndicator(row)
1448 } else {
1449 ContextMenuOrigin::EditorPoint(cursor_position)
1450 };
1451
1452 (cursor_position, element)
1453 }
1454}
1455
1456#[derive(Debug)]
1457struct ActiveDiagnosticGroup {
1458 primary_range: Range<Anchor>,
1459 primary_message: String,
1460 group_id: usize,
1461 blocks: HashMap<BlockId, Diagnostic>,
1462 is_valid: bool,
1463}
1464
1465#[derive(Serialize, Deserialize)]
1466pub struct ClipboardSelection {
1467 pub len: usize,
1468 pub is_entire_line: bool,
1469 pub first_line_indent: u32,
1470}
1471
1472#[derive(Debug)]
1473pub(crate) struct NavigationData {
1474 cursor_anchor: Anchor,
1475 cursor_position: Point,
1476 scroll_anchor: ScrollAnchor,
1477 scroll_top_row: u32,
1478}
1479
1480enum GotoDefinitionKind {
1481 Symbol,
1482 Type,
1483 Implementation,
1484}
1485
1486#[derive(Debug, Clone)]
1487enum InlayHintRefreshReason {
1488 Toggle(bool),
1489 SettingsChange(InlayHintSettings),
1490 NewLinesShown,
1491 BufferEdited(HashSet<Arc<Language>>),
1492 RefreshRequested,
1493 ExcerptsRemoved(Vec<ExcerptId>),
1494}
1495
1496impl InlayHintRefreshReason {
1497 fn description(&self) -> &'static str {
1498 match self {
1499 Self::Toggle(_) => "toggle",
1500 Self::SettingsChange(_) => "settings change",
1501 Self::NewLinesShown => "new lines shown",
1502 Self::BufferEdited(_) => "buffer edited",
1503 Self::RefreshRequested => "refresh requested",
1504 Self::ExcerptsRemoved(_) => "excerpts removed",
1505 }
1506 }
1507}
1508
1509impl Editor {
1510 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1511 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1512 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1513 Self::new(EditorMode::SingleLine, buffer, None, cx)
1514 }
1515
1516 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1517 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1518 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1519 Self::new(EditorMode::Full, buffer, None, cx)
1520 }
1521
1522 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1523 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1524 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1525 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1526 }
1527
1528 pub fn for_buffer(
1529 buffer: Model<Buffer>,
1530 project: Option<Model<Project>>,
1531 cx: &mut ViewContext<Self>,
1532 ) -> Self {
1533 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1534 Self::new(EditorMode::Full, buffer, project, cx)
1535 }
1536
1537 pub fn for_multibuffer(
1538 buffer: Model<MultiBuffer>,
1539 project: Option<Model<Project>>,
1540 cx: &mut ViewContext<Self>,
1541 ) -> Self {
1542 Self::new(EditorMode::Full, buffer, project, cx)
1543 }
1544
1545 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1546 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1547 self.display_map.update(cx, |display_map, cx| {
1548 let snapshot = display_map.snapshot(cx);
1549 clone.display_map.update(cx, |display_map, cx| {
1550 display_map.set_state(&snapshot, cx);
1551 });
1552 });
1553 clone.selections.clone_state(&self.selections);
1554 clone.scroll_manager.clone_state(&self.scroll_manager);
1555 clone.searchable = self.searchable;
1556 clone
1557 }
1558
1559 fn new(
1560 mode: EditorMode,
1561 buffer: Model<MultiBuffer>,
1562 project: Option<Model<Project>>,
1563 cx: &mut ViewContext<Self>,
1564 ) -> Self {
1565 let style = cx.text_style();
1566 let font_size = style.font_size.to_pixels(cx.rem_size());
1567 let display_map = cx.new_model(|cx| {
1568 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1569 });
1570
1571 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1572
1573 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1574
1575 let soft_wrap_mode_override =
1576 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1577
1578 let mut project_subscriptions = Vec::new();
1579 if mode == EditorMode::Full {
1580 if let Some(project) = project.as_ref() {
1581 if buffer.read(cx).is_singleton() {
1582 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1583 cx.emit(EditorEvent::TitleChanged);
1584 }));
1585 }
1586 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1587 if let project::Event::RefreshInlayHints = event {
1588 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1589 };
1590 }));
1591 let task_inventory = project.read(cx).task_inventory().clone();
1592 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1593 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1594 }));
1595 }
1596 }
1597
1598 let inlay_hint_settings = inlay_hint_settings(
1599 selections.newest_anchor().head(),
1600 &buffer.read(cx).snapshot(cx),
1601 cx,
1602 );
1603
1604 let focus_handle = cx.focus_handle();
1605 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1606 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1607
1608 let mut this = Self {
1609 focus_handle,
1610 buffer: buffer.clone(),
1611 display_map: display_map.clone(),
1612 selections,
1613 scroll_manager: ScrollManager::new(cx),
1614 columnar_selection_tail: None,
1615 add_selections_state: None,
1616 select_next_state: None,
1617 select_prev_state: None,
1618 selection_history: Default::default(),
1619 autoclose_regions: Default::default(),
1620 snippet_stack: Default::default(),
1621 select_larger_syntax_node_stack: Vec::new(),
1622 ime_transaction: Default::default(),
1623 active_diagnostics: None,
1624 soft_wrap_mode_override,
1625 completion_provider: project.clone().map(|project| Box::new(project) as _),
1626 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1627 project,
1628 blink_manager: blink_manager.clone(),
1629 show_local_selections: true,
1630 mode,
1631 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1632 show_gutter: mode == EditorMode::Full,
1633 show_wrap_guides: None,
1634 placeholder_text: None,
1635 highlight_order: 0,
1636 highlighted_rows: HashMap::default(),
1637 background_highlights: Default::default(),
1638 scrollbar_marker_state: ScrollbarMarkerState::default(),
1639 nav_history: None,
1640 context_menu: RwLock::new(None),
1641 mouse_context_menu: None,
1642 completion_tasks: Default::default(),
1643 find_all_references_task_sources: Vec::new(),
1644 next_completion_id: 0,
1645 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1646 next_inlay_id: 0,
1647 available_code_actions: Default::default(),
1648 code_actions_task: Default::default(),
1649 document_highlights_task: Default::default(),
1650 pending_rename: Default::default(),
1651 searchable: true,
1652 cursor_shape: Default::default(),
1653 current_line_highlight: EditorSettings::get_global(cx).current_line_highlight,
1654 autoindent_mode: Some(AutoindentMode::EachLine),
1655 collapse_matches: false,
1656 workspace: None,
1657 keymap_context_layers: Default::default(),
1658 input_enabled: true,
1659 use_modal_editing: mode == EditorMode::Full,
1660 read_only: false,
1661 use_autoclose: true,
1662 auto_replace_emoji_shortcode: false,
1663 leader_peer_id: None,
1664 remote_id: None,
1665 hover_state: Default::default(),
1666 hovered_link_state: Default::default(),
1667 inline_completion_provider: None,
1668 active_inline_completion: None,
1669 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1670 expanded_hunks: ExpandedHunks::default(),
1671 gutter_hovered: false,
1672 pixel_position_of_newest_cursor: None,
1673 last_bounds: None,
1674 expect_bounds_change: None,
1675 gutter_dimensions: GutterDimensions::default(),
1676 style: None,
1677 show_cursor_names: false,
1678 hovered_cursors: Default::default(),
1679 editor_actions: Default::default(),
1680 vim_replace_map: Default::default(),
1681 show_inline_completions: mode == EditorMode::Full,
1682 custom_context_menu: None,
1683 show_git_blame_gutter: false,
1684 show_git_blame_inline: false,
1685 show_git_blame_inline_delay_task: None,
1686 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1687 blame: None,
1688 blame_subscription: None,
1689 tasks: Default::default(),
1690 _subscriptions: vec![
1691 cx.observe(&buffer, Self::on_buffer_changed),
1692 cx.subscribe(&buffer, Self::on_buffer_event),
1693 cx.observe(&display_map, Self::on_display_map_changed),
1694 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1695 cx.observe_global::<SettingsStore>(Self::settings_changed),
1696 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1697 cx.observe_window_activation(|editor, cx| {
1698 let active = cx.is_window_active();
1699 editor.blink_manager.update(cx, |blink_manager, cx| {
1700 if active {
1701 blink_manager.enable(cx);
1702 } else {
1703 blink_manager.show_cursor(cx);
1704 blink_manager.disable(cx);
1705 }
1706 });
1707 }),
1708 ],
1709 tasks_update_task: None,
1710 };
1711 this.tasks_update_task = Some(this.refresh_runnables(cx));
1712 this._subscriptions.extend(project_subscriptions);
1713
1714 this.end_selection(cx);
1715 this.scroll_manager.show_scrollbar(cx);
1716
1717 if mode == EditorMode::Full {
1718 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1719 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1720
1721 if this.git_blame_inline_enabled {
1722 this.git_blame_inline_enabled = true;
1723 this.start_git_blame_inline(false, cx);
1724 }
1725 }
1726
1727 this.report_editor_event("open", None, cx);
1728 this
1729 }
1730
1731 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1732 self.mouse_context_menu
1733 .as_ref()
1734 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1735 }
1736
1737 fn key_context(&self, cx: &AppContext) -> KeyContext {
1738 let mut key_context = KeyContext::new_with_defaults();
1739 key_context.add("Editor");
1740 let mode = match self.mode {
1741 EditorMode::SingleLine => "single_line",
1742 EditorMode::AutoHeight { .. } => "auto_height",
1743 EditorMode::Full => "full",
1744 };
1745 key_context.set("mode", mode);
1746 if self.pending_rename.is_some() {
1747 key_context.add("renaming");
1748 }
1749 if self.context_menu_visible() {
1750 match self.context_menu.read().as_ref() {
1751 Some(ContextMenu::Completions(_)) => {
1752 key_context.add("menu");
1753 key_context.add("showing_completions")
1754 }
1755 Some(ContextMenu::CodeActions(_)) => {
1756 key_context.add("menu");
1757 key_context.add("showing_code_actions")
1758 }
1759 None => {}
1760 }
1761 }
1762
1763 for layer in self.keymap_context_layers.values() {
1764 key_context.extend(layer);
1765 }
1766
1767 if let Some(extension) = self
1768 .buffer
1769 .read(cx)
1770 .as_singleton()
1771 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1772 {
1773 key_context.set("extension", extension.to_string());
1774 }
1775
1776 if self.has_active_inline_completion(cx) {
1777 key_context.add("copilot_suggestion");
1778 key_context.add("inline_completion");
1779 }
1780
1781 key_context
1782 }
1783
1784 pub fn new_file(
1785 workspace: &mut Workspace,
1786 _: &workspace::NewFile,
1787 cx: &mut ViewContext<Workspace>,
1788 ) {
1789 let project = workspace.project().clone();
1790 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1791
1792 cx.spawn(|workspace, mut cx| async move {
1793 let buffer = create.await?;
1794 workspace.update(&mut cx, |workspace, cx| {
1795 workspace.add_item_to_active_pane(
1796 Box::new(
1797 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1798 ),
1799 None,
1800 cx,
1801 )
1802 })
1803 })
1804 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1805 ErrorCode::RemoteUpgradeRequired => Some(format!(
1806 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1807 e.error_tag("required").unwrap_or("the latest version")
1808 )),
1809 _ => None,
1810 });
1811 }
1812
1813 pub fn new_file_in_direction(
1814 workspace: &mut Workspace,
1815 action: &workspace::NewFileInDirection,
1816 cx: &mut ViewContext<Workspace>,
1817 ) {
1818 let project = workspace.project().clone();
1819 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1820 let direction = action.0;
1821
1822 cx.spawn(|workspace, mut cx| async move {
1823 let buffer = create.await?;
1824 workspace.update(&mut cx, move |workspace, cx| {
1825 workspace.split_item(
1826 direction,
1827 Box::new(
1828 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1829 ),
1830 cx,
1831 )
1832 })?;
1833 anyhow::Ok(())
1834 })
1835 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1836 ErrorCode::RemoteUpgradeRequired => Some(format!(
1837 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1838 e.error_tag("required").unwrap_or("the latest version")
1839 )),
1840 _ => None,
1841 });
1842 }
1843
1844 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1845 self.buffer.read(cx).replica_id()
1846 }
1847
1848 pub fn leader_peer_id(&self) -> Option<PeerId> {
1849 self.leader_peer_id
1850 }
1851
1852 pub fn buffer(&self) -> &Model<MultiBuffer> {
1853 &self.buffer
1854 }
1855
1856 pub fn workspace(&self) -> Option<View<Workspace>> {
1857 self.workspace.as_ref()?.0.upgrade()
1858 }
1859
1860 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1861 self.buffer().read(cx).title(cx)
1862 }
1863
1864 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1865 EditorSnapshot {
1866 mode: self.mode,
1867 show_gutter: self.show_gutter,
1868 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1869 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1870 scroll_anchor: self.scroll_manager.anchor(),
1871 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1872 placeholder_text: self.placeholder_text.clone(),
1873 is_focused: self.focus_handle.is_focused(cx),
1874 current_line_highlight: self.current_line_highlight,
1875 }
1876 }
1877
1878 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1879 self.buffer.read(cx).language_at(point, cx)
1880 }
1881
1882 pub fn file_at<T: ToOffset>(
1883 &self,
1884 point: T,
1885 cx: &AppContext,
1886 ) -> Option<Arc<dyn language::File>> {
1887 self.buffer.read(cx).read(cx).file_at(point).cloned()
1888 }
1889
1890 pub fn active_excerpt(
1891 &self,
1892 cx: &AppContext,
1893 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1894 self.buffer
1895 .read(cx)
1896 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1897 }
1898
1899 pub fn mode(&self) -> EditorMode {
1900 self.mode
1901 }
1902
1903 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1904 self.collaboration_hub.as_deref()
1905 }
1906
1907 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1908 self.collaboration_hub = Some(hub);
1909 }
1910
1911 pub fn set_custom_context_menu(
1912 &mut self,
1913 f: impl 'static
1914 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1915 ) {
1916 self.custom_context_menu = Some(Box::new(f))
1917 }
1918
1919 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1920 self.completion_provider = Some(hub);
1921 }
1922
1923 pub fn set_inline_completion_provider<T>(
1924 &mut self,
1925 provider: Option<Model<T>>,
1926 cx: &mut ViewContext<Self>,
1927 ) where
1928 T: InlineCompletionProvider,
1929 {
1930 self.inline_completion_provider =
1931 provider.map(|provider| RegisteredInlineCompletionProvider {
1932 _subscription: cx.observe(&provider, |this, _, cx| {
1933 if this.focus_handle.is_focused(cx) {
1934 this.update_visible_inline_completion(cx);
1935 }
1936 }),
1937 provider: Arc::new(provider),
1938 });
1939 self.refresh_inline_completion(false, cx);
1940 }
1941
1942 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1943 self.placeholder_text.as_deref()
1944 }
1945
1946 pub fn set_placeholder_text(
1947 &mut self,
1948 placeholder_text: impl Into<Arc<str>>,
1949 cx: &mut ViewContext<Self>,
1950 ) {
1951 let placeholder_text = Some(placeholder_text.into());
1952 if self.placeholder_text != placeholder_text {
1953 self.placeholder_text = placeholder_text;
1954 cx.notify();
1955 }
1956 }
1957
1958 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1959 self.cursor_shape = cursor_shape;
1960 cx.notify();
1961 }
1962
1963 pub fn set_current_line_highlight(&mut self, current_line_highlight: CurrentLineHighlight) {
1964 self.current_line_highlight = current_line_highlight;
1965 }
1966
1967 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1968 self.collapse_matches = collapse_matches;
1969 }
1970
1971 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1972 if self.collapse_matches {
1973 return range.start..range.start;
1974 }
1975 range.clone()
1976 }
1977
1978 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1979 if self.display_map.read(cx).clip_at_line_ends != clip {
1980 self.display_map
1981 .update(cx, |map, _| map.clip_at_line_ends = clip);
1982 }
1983 }
1984
1985 pub fn set_keymap_context_layer<Tag: 'static>(
1986 &mut self,
1987 context: KeyContext,
1988 cx: &mut ViewContext<Self>,
1989 ) {
1990 self.keymap_context_layers
1991 .insert(TypeId::of::<Tag>(), context);
1992 cx.notify();
1993 }
1994
1995 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1996 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1997 cx.notify();
1998 }
1999
2000 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2001 self.input_enabled = input_enabled;
2002 }
2003
2004 pub fn set_autoindent(&mut self, autoindent: bool) {
2005 if autoindent {
2006 self.autoindent_mode = Some(AutoindentMode::EachLine);
2007 } else {
2008 self.autoindent_mode = None;
2009 }
2010 }
2011
2012 pub fn read_only(&self, cx: &AppContext) -> bool {
2013 self.read_only || self.buffer.read(cx).read_only()
2014 }
2015
2016 pub fn set_read_only(&mut self, read_only: bool) {
2017 self.read_only = read_only;
2018 }
2019
2020 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2021 self.use_autoclose = autoclose;
2022 }
2023
2024 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2025 self.auto_replace_emoji_shortcode = auto_replace;
2026 }
2027
2028 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2029 self.show_inline_completions = show_inline_completions;
2030 }
2031
2032 pub fn set_use_modal_editing(&mut self, to: bool) {
2033 self.use_modal_editing = to;
2034 }
2035
2036 pub fn use_modal_editing(&self) -> bool {
2037 self.use_modal_editing
2038 }
2039
2040 fn selections_did_change(
2041 &mut self,
2042 local: bool,
2043 old_cursor_position: &Anchor,
2044 show_completions: bool,
2045 cx: &mut ViewContext<Self>,
2046 ) {
2047 // Copy selections to primary selection buffer
2048 #[cfg(target_os = "linux")]
2049 if local {
2050 let selections = self.selections.all::<usize>(cx);
2051 let buffer_handle = self.buffer.read(cx).read(cx);
2052
2053 let mut text = String::new();
2054 for (index, selection) in selections.iter().enumerate() {
2055 let text_for_selection = buffer_handle
2056 .text_for_range(selection.start..selection.end)
2057 .collect::<String>();
2058
2059 text.push_str(&text_for_selection);
2060 if index != selections.len() - 1 {
2061 text.push('\n');
2062 }
2063 }
2064
2065 if !text.is_empty() {
2066 cx.write_to_primary(ClipboardItem::new(text));
2067 }
2068 }
2069
2070 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2071 self.buffer.update(cx, |buffer, cx| {
2072 buffer.set_active_selections(
2073 &self.selections.disjoint_anchors(),
2074 self.selections.line_mode,
2075 self.cursor_shape,
2076 cx,
2077 )
2078 });
2079 }
2080
2081 let display_map = self
2082 .display_map
2083 .update(cx, |display_map, cx| display_map.snapshot(cx));
2084 let buffer = &display_map.buffer_snapshot;
2085 self.add_selections_state = None;
2086 self.select_next_state = None;
2087 self.select_prev_state = None;
2088 self.select_larger_syntax_node_stack.clear();
2089 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2090 self.snippet_stack
2091 .invalidate(&self.selections.disjoint_anchors(), buffer);
2092 self.take_rename(false, cx);
2093
2094 let new_cursor_position = self.selections.newest_anchor().head();
2095
2096 self.push_to_nav_history(
2097 *old_cursor_position,
2098 Some(new_cursor_position.to_point(buffer)),
2099 cx,
2100 );
2101
2102 if local {
2103 let new_cursor_position = self.selections.newest_anchor().head();
2104 let mut context_menu = self.context_menu.write();
2105 let completion_menu = match context_menu.as_ref() {
2106 Some(ContextMenu::Completions(menu)) => Some(menu),
2107
2108 _ => {
2109 *context_menu = None;
2110 None
2111 }
2112 };
2113
2114 if let Some(completion_menu) = completion_menu {
2115 let cursor_position = new_cursor_position.to_offset(buffer);
2116 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2117 if kind == Some(CharKind::Word)
2118 && word_range.to_inclusive().contains(&cursor_position)
2119 {
2120 let mut completion_menu = completion_menu.clone();
2121 drop(context_menu);
2122
2123 let query = Self::completion_query(buffer, cursor_position);
2124 cx.spawn(move |this, mut cx| async move {
2125 completion_menu
2126 .filter(query.as_deref(), cx.background_executor().clone())
2127 .await;
2128
2129 this.update(&mut cx, |this, cx| {
2130 let mut context_menu = this.context_menu.write();
2131 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2132 return;
2133 };
2134
2135 if menu.id > completion_menu.id {
2136 return;
2137 }
2138
2139 *context_menu = Some(ContextMenu::Completions(completion_menu));
2140 drop(context_menu);
2141 cx.notify();
2142 })
2143 })
2144 .detach();
2145
2146 if show_completions {
2147 self.show_completions(&ShowCompletions, cx);
2148 }
2149 } else {
2150 drop(context_menu);
2151 self.hide_context_menu(cx);
2152 }
2153 } else {
2154 drop(context_menu);
2155 }
2156
2157 hide_hover(self, cx);
2158
2159 if old_cursor_position.to_display_point(&display_map).row()
2160 != new_cursor_position.to_display_point(&display_map).row()
2161 {
2162 self.available_code_actions.take();
2163 }
2164 self.refresh_code_actions(cx);
2165 self.refresh_document_highlights(cx);
2166 refresh_matching_bracket_highlights(self, cx);
2167 self.discard_inline_completion(false, cx);
2168 if self.git_blame_inline_enabled {
2169 self.start_inline_blame_timer(cx);
2170 }
2171 }
2172
2173 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2174 cx.emit(EditorEvent::SelectionsChanged { local });
2175
2176 if self.selections.disjoint_anchors().len() == 1 {
2177 cx.emit(SearchEvent::ActiveMatchChanged)
2178 }
2179
2180 cx.notify();
2181 }
2182
2183 pub fn change_selections<R>(
2184 &mut self,
2185 autoscroll: Option<Autoscroll>,
2186 cx: &mut ViewContext<Self>,
2187 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2188 ) -> R {
2189 self.change_selections_inner(autoscroll, true, cx, change)
2190 }
2191
2192 pub fn change_selections_inner<R>(
2193 &mut self,
2194 autoscroll: Option<Autoscroll>,
2195 request_completions: bool,
2196 cx: &mut ViewContext<Self>,
2197 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2198 ) -> R {
2199 let old_cursor_position = self.selections.newest_anchor().head();
2200 self.push_to_selection_history();
2201
2202 let (changed, result) = self.selections.change_with(cx, change);
2203
2204 if changed {
2205 if let Some(autoscroll) = autoscroll {
2206 self.request_autoscroll(autoscroll, cx);
2207 }
2208 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2209 }
2210
2211 result
2212 }
2213
2214 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2215 where
2216 I: IntoIterator<Item = (Range<S>, T)>,
2217 S: ToOffset,
2218 T: Into<Arc<str>>,
2219 {
2220 if self.read_only(cx) {
2221 return;
2222 }
2223
2224 self.buffer
2225 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2226 }
2227
2228 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2229 where
2230 I: IntoIterator<Item = (Range<S>, T)>,
2231 S: ToOffset,
2232 T: Into<Arc<str>>,
2233 {
2234 if self.read_only(cx) {
2235 return;
2236 }
2237
2238 self.buffer.update(cx, |buffer, cx| {
2239 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2240 });
2241 }
2242
2243 pub fn edit_with_block_indent<I, S, T>(
2244 &mut self,
2245 edits: I,
2246 original_indent_columns: Vec<u32>,
2247 cx: &mut ViewContext<Self>,
2248 ) where
2249 I: IntoIterator<Item = (Range<S>, T)>,
2250 S: ToOffset,
2251 T: Into<Arc<str>>,
2252 {
2253 if self.read_only(cx) {
2254 return;
2255 }
2256
2257 self.buffer.update(cx, |buffer, cx| {
2258 buffer.edit(
2259 edits,
2260 Some(AutoindentMode::Block {
2261 original_indent_columns,
2262 }),
2263 cx,
2264 )
2265 });
2266 }
2267
2268 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2269 self.hide_context_menu(cx);
2270
2271 match phase {
2272 SelectPhase::Begin {
2273 position,
2274 add,
2275 click_count,
2276 } => self.begin_selection(position, add, click_count, cx),
2277 SelectPhase::BeginColumnar {
2278 position,
2279 goal_column,
2280 } => self.begin_columnar_selection(position, goal_column, cx),
2281 SelectPhase::Extend {
2282 position,
2283 click_count,
2284 } => self.extend_selection(position, click_count, cx),
2285 SelectPhase::Update {
2286 position,
2287 goal_column,
2288 scroll_delta,
2289 } => self.update_selection(position, goal_column, scroll_delta, cx),
2290 SelectPhase::End => self.end_selection(cx),
2291 }
2292 }
2293
2294 fn extend_selection(
2295 &mut self,
2296 position: DisplayPoint,
2297 click_count: usize,
2298 cx: &mut ViewContext<Self>,
2299 ) {
2300 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2301 let tail = self.selections.newest::<usize>(cx).tail();
2302 self.begin_selection(position, false, click_count, cx);
2303
2304 let position = position.to_offset(&display_map, Bias::Left);
2305 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2306
2307 let mut pending_selection = self
2308 .selections
2309 .pending_anchor()
2310 .expect("extend_selection not called with pending selection");
2311 if position >= tail {
2312 pending_selection.start = tail_anchor;
2313 } else {
2314 pending_selection.end = tail_anchor;
2315 pending_selection.reversed = true;
2316 }
2317
2318 let mut pending_mode = self.selections.pending_mode().unwrap();
2319 match &mut pending_mode {
2320 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2321 _ => {}
2322 }
2323
2324 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2325 s.set_pending(pending_selection, pending_mode)
2326 });
2327 }
2328
2329 fn begin_selection(
2330 &mut self,
2331 position: DisplayPoint,
2332 add: bool,
2333 click_count: usize,
2334 cx: &mut ViewContext<Self>,
2335 ) {
2336 if !self.focus_handle.is_focused(cx) {
2337 cx.focus(&self.focus_handle);
2338 }
2339
2340 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2341 let buffer = &display_map.buffer_snapshot;
2342 let newest_selection = self.selections.newest_anchor().clone();
2343 let position = display_map.clip_point(position, Bias::Left);
2344
2345 let start;
2346 let end;
2347 let mode;
2348 let auto_scroll;
2349 match click_count {
2350 1 => {
2351 start = buffer.anchor_before(position.to_point(&display_map));
2352 end = start;
2353 mode = SelectMode::Character;
2354 auto_scroll = true;
2355 }
2356 2 => {
2357 let range = movement::surrounding_word(&display_map, position);
2358 start = buffer.anchor_before(range.start.to_point(&display_map));
2359 end = buffer.anchor_before(range.end.to_point(&display_map));
2360 mode = SelectMode::Word(start..end);
2361 auto_scroll = true;
2362 }
2363 3 => {
2364 let position = display_map
2365 .clip_point(position, Bias::Left)
2366 .to_point(&display_map);
2367 let line_start = display_map.prev_line_boundary(position).0;
2368 let next_line_start = buffer.clip_point(
2369 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2370 Bias::Left,
2371 );
2372 start = buffer.anchor_before(line_start);
2373 end = buffer.anchor_before(next_line_start);
2374 mode = SelectMode::Line(start..end);
2375 auto_scroll = true;
2376 }
2377 _ => {
2378 start = buffer.anchor_before(0);
2379 end = buffer.anchor_before(buffer.len());
2380 mode = SelectMode::All;
2381 auto_scroll = false;
2382 }
2383 }
2384
2385 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2386 if !add {
2387 s.clear_disjoint();
2388 } else if click_count > 1 {
2389 s.delete(newest_selection.id)
2390 }
2391
2392 s.set_pending_anchor_range(start..end, mode);
2393 });
2394 }
2395
2396 fn begin_columnar_selection(
2397 &mut self,
2398 position: DisplayPoint,
2399 goal_column: u32,
2400 cx: &mut ViewContext<Self>,
2401 ) {
2402 if !self.focus_handle.is_focused(cx) {
2403 cx.focus(&self.focus_handle);
2404 }
2405
2406 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2407 let tail = self.selections.newest::<Point>(cx).tail();
2408 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2409
2410 self.select_columns(
2411 tail.to_display_point(&display_map),
2412 position,
2413 goal_column,
2414 &display_map,
2415 cx,
2416 );
2417 }
2418
2419 fn update_selection(
2420 &mut self,
2421 position: DisplayPoint,
2422 goal_column: u32,
2423 scroll_delta: gpui::Point<f32>,
2424 cx: &mut ViewContext<Self>,
2425 ) {
2426 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2427
2428 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2429 let tail = tail.to_display_point(&display_map);
2430 self.select_columns(tail, position, goal_column, &display_map, cx);
2431 } else if let Some(mut pending) = self.selections.pending_anchor() {
2432 let buffer = self.buffer.read(cx).snapshot(cx);
2433 let head;
2434 let tail;
2435 let mode = self.selections.pending_mode().unwrap();
2436 match &mode {
2437 SelectMode::Character => {
2438 head = position.to_point(&display_map);
2439 tail = pending.tail().to_point(&buffer);
2440 }
2441 SelectMode::Word(original_range) => {
2442 let original_display_range = original_range.start.to_display_point(&display_map)
2443 ..original_range.end.to_display_point(&display_map);
2444 let original_buffer_range = original_display_range.start.to_point(&display_map)
2445 ..original_display_range.end.to_point(&display_map);
2446 if movement::is_inside_word(&display_map, position)
2447 || original_display_range.contains(&position)
2448 {
2449 let word_range = movement::surrounding_word(&display_map, position);
2450 if word_range.start < original_display_range.start {
2451 head = word_range.start.to_point(&display_map);
2452 } else {
2453 head = word_range.end.to_point(&display_map);
2454 }
2455 } else {
2456 head = position.to_point(&display_map);
2457 }
2458
2459 if head <= original_buffer_range.start {
2460 tail = original_buffer_range.end;
2461 } else {
2462 tail = original_buffer_range.start;
2463 }
2464 }
2465 SelectMode::Line(original_range) => {
2466 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2467
2468 let position = display_map
2469 .clip_point(position, Bias::Left)
2470 .to_point(&display_map);
2471 let line_start = display_map.prev_line_boundary(position).0;
2472 let next_line_start = buffer.clip_point(
2473 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2474 Bias::Left,
2475 );
2476
2477 if line_start < original_range.start {
2478 head = line_start
2479 } else {
2480 head = next_line_start
2481 }
2482
2483 if head <= original_range.start {
2484 tail = original_range.end;
2485 } else {
2486 tail = original_range.start;
2487 }
2488 }
2489 SelectMode::All => {
2490 return;
2491 }
2492 };
2493
2494 if head < tail {
2495 pending.start = buffer.anchor_before(head);
2496 pending.end = buffer.anchor_before(tail);
2497 pending.reversed = true;
2498 } else {
2499 pending.start = buffer.anchor_before(tail);
2500 pending.end = buffer.anchor_before(head);
2501 pending.reversed = false;
2502 }
2503
2504 self.change_selections(None, cx, |s| {
2505 s.set_pending(pending, mode);
2506 });
2507 } else {
2508 log::error!("update_selection dispatched with no pending selection");
2509 return;
2510 }
2511
2512 self.apply_scroll_delta(scroll_delta, cx);
2513 cx.notify();
2514 }
2515
2516 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2517 self.columnar_selection_tail.take();
2518 if self.selections.pending_anchor().is_some() {
2519 let selections = self.selections.all::<usize>(cx);
2520 self.change_selections(None, cx, |s| {
2521 s.select(selections);
2522 s.clear_pending();
2523 });
2524 }
2525 }
2526
2527 fn select_columns(
2528 &mut self,
2529 tail: DisplayPoint,
2530 head: DisplayPoint,
2531 goal_column: u32,
2532 display_map: &DisplaySnapshot,
2533 cx: &mut ViewContext<Self>,
2534 ) {
2535 let start_row = cmp::min(tail.row(), head.row());
2536 let end_row = cmp::max(tail.row(), head.row());
2537 let start_column = cmp::min(tail.column(), goal_column);
2538 let end_column = cmp::max(tail.column(), goal_column);
2539 let reversed = start_column < tail.column();
2540
2541 let selection_ranges = (start_row.0..=end_row.0)
2542 .map(DisplayRow)
2543 .filter_map(|row| {
2544 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2545 let start = display_map
2546 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2547 .to_point(display_map);
2548 let end = display_map
2549 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2550 .to_point(display_map);
2551 if reversed {
2552 Some(end..start)
2553 } else {
2554 Some(start..end)
2555 }
2556 } else {
2557 None
2558 }
2559 })
2560 .collect::<Vec<_>>();
2561
2562 self.change_selections(None, cx, |s| {
2563 s.select_ranges(selection_ranges);
2564 });
2565 cx.notify();
2566 }
2567
2568 pub fn has_pending_nonempty_selection(&self) -> bool {
2569 let pending_nonempty_selection = match self.selections.pending_anchor() {
2570 Some(Selection { start, end, .. }) => start != end,
2571 None => false,
2572 };
2573 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2574 }
2575
2576 pub fn has_pending_selection(&self) -> bool {
2577 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2578 }
2579
2580 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2581 self.clear_expanded_diff_hunks(cx);
2582 if self.dismiss_menus_and_popups(true, cx) {
2583 return;
2584 }
2585
2586 if self.mode == EditorMode::Full {
2587 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2588 return;
2589 }
2590 }
2591
2592 cx.propagate();
2593 }
2594
2595 pub fn dismiss_menus_and_popups(
2596 &mut self,
2597 should_report_inline_completion_event: bool,
2598 cx: &mut ViewContext<Self>,
2599 ) -> bool {
2600 if self.take_rename(false, cx).is_some() {
2601 return true;
2602 }
2603
2604 if hide_hover(self, cx) {
2605 return true;
2606 }
2607
2608 if self.hide_context_menu(cx).is_some() {
2609 return true;
2610 }
2611
2612 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2613 return true;
2614 }
2615
2616 if self.snippet_stack.pop().is_some() {
2617 return true;
2618 }
2619
2620 if self.mode == EditorMode::Full {
2621 if self.active_diagnostics.is_some() {
2622 self.dismiss_diagnostics(cx);
2623 return true;
2624 }
2625 }
2626
2627 false
2628 }
2629
2630 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2631 let text: Arc<str> = text.into();
2632
2633 if self.read_only(cx) {
2634 return;
2635 }
2636
2637 let selections = self.selections.all_adjusted(cx);
2638 let mut brace_inserted = false;
2639 let mut edits = Vec::new();
2640 let mut new_selections = Vec::with_capacity(selections.len());
2641 let mut new_autoclose_regions = Vec::new();
2642 let snapshot = self.buffer.read(cx).read(cx);
2643
2644 for (selection, autoclose_region) in
2645 self.selections_with_autoclose_regions(selections, &snapshot)
2646 {
2647 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2648 // Determine if the inserted text matches the opening or closing
2649 // bracket of any of this language's bracket pairs.
2650 let mut bracket_pair = None;
2651 let mut is_bracket_pair_start = false;
2652 let mut is_bracket_pair_end = false;
2653 if !text.is_empty() {
2654 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2655 // and they are removing the character that triggered IME popup.
2656 for (pair, enabled) in scope.brackets() {
2657 if !pair.close {
2658 continue;
2659 }
2660
2661 if enabled && pair.start.ends_with(text.as_ref()) {
2662 bracket_pair = Some(pair.clone());
2663 is_bracket_pair_start = true;
2664 break;
2665 }
2666 if pair.end.as_str() == text.as_ref() {
2667 bracket_pair = Some(pair.clone());
2668 is_bracket_pair_end = true;
2669 break;
2670 }
2671 }
2672 }
2673
2674 if let Some(bracket_pair) = bracket_pair {
2675 if selection.is_empty() {
2676 if is_bracket_pair_start {
2677 let prefix_len = bracket_pair.start.len() - text.len();
2678
2679 // If the inserted text is a suffix of an opening bracket and the
2680 // selection is preceded by the rest of the opening bracket, then
2681 // insert the closing bracket.
2682 let following_text_allows_autoclose = snapshot
2683 .chars_at(selection.start)
2684 .next()
2685 .map_or(true, |c| scope.should_autoclose_before(c));
2686 let preceding_text_matches_prefix = prefix_len == 0
2687 || (selection.start.column >= (prefix_len as u32)
2688 && snapshot.contains_str_at(
2689 Point::new(
2690 selection.start.row,
2691 selection.start.column - (prefix_len as u32),
2692 ),
2693 &bracket_pair.start[..prefix_len],
2694 ));
2695 let autoclose = self.use_autoclose
2696 && snapshot.settings_at(selection.start, cx).use_autoclose;
2697 if autoclose
2698 && following_text_allows_autoclose
2699 && preceding_text_matches_prefix
2700 {
2701 let anchor = snapshot.anchor_before(selection.end);
2702 new_selections.push((selection.map(|_| anchor), text.len()));
2703 new_autoclose_regions.push((
2704 anchor,
2705 text.len(),
2706 selection.id,
2707 bracket_pair.clone(),
2708 ));
2709 edits.push((
2710 selection.range(),
2711 format!("{}{}", text, bracket_pair.end).into(),
2712 ));
2713 brace_inserted = true;
2714 continue;
2715 }
2716 }
2717
2718 if let Some(region) = autoclose_region {
2719 // If the selection is followed by an auto-inserted closing bracket,
2720 // then don't insert that closing bracket again; just move the selection
2721 // past the closing bracket.
2722 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2723 && text.as_ref() == region.pair.end.as_str();
2724 if should_skip {
2725 let anchor = snapshot.anchor_after(selection.end);
2726 new_selections
2727 .push((selection.map(|_| anchor), region.pair.end.len()));
2728 continue;
2729 }
2730 }
2731
2732 let always_treat_brackets_as_autoclosed = snapshot
2733 .settings_at(selection.start, cx)
2734 .always_treat_brackets_as_autoclosed;
2735 if always_treat_brackets_as_autoclosed
2736 && is_bracket_pair_end
2737 && snapshot.contains_str_at(selection.end, text.as_ref())
2738 {
2739 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2740 // and the inserted text is a closing bracket and the selection is followed
2741 // by the closing bracket then move the selection past the closing bracket.
2742 let anchor = snapshot.anchor_after(selection.end);
2743 new_selections.push((selection.map(|_| anchor), text.len()));
2744 continue;
2745 }
2746 }
2747 // If an opening bracket is 1 character long and is typed while
2748 // text is selected, then surround that text with the bracket pair.
2749 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2750 edits.push((selection.start..selection.start, text.clone()));
2751 edits.push((
2752 selection.end..selection.end,
2753 bracket_pair.end.as_str().into(),
2754 ));
2755 brace_inserted = true;
2756 new_selections.push((
2757 Selection {
2758 id: selection.id,
2759 start: snapshot.anchor_after(selection.start),
2760 end: snapshot.anchor_before(selection.end),
2761 reversed: selection.reversed,
2762 goal: selection.goal,
2763 },
2764 0,
2765 ));
2766 continue;
2767 }
2768 }
2769 }
2770
2771 if self.auto_replace_emoji_shortcode
2772 && selection.is_empty()
2773 && text.as_ref().ends_with(':')
2774 {
2775 if let Some(possible_emoji_short_code) =
2776 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2777 {
2778 if !possible_emoji_short_code.is_empty() {
2779 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2780 let emoji_shortcode_start = Point::new(
2781 selection.start.row,
2782 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2783 );
2784
2785 // Remove shortcode from buffer
2786 edits.push((
2787 emoji_shortcode_start..selection.start,
2788 "".to_string().into(),
2789 ));
2790 new_selections.push((
2791 Selection {
2792 id: selection.id,
2793 start: snapshot.anchor_after(emoji_shortcode_start),
2794 end: snapshot.anchor_before(selection.start),
2795 reversed: selection.reversed,
2796 goal: selection.goal,
2797 },
2798 0,
2799 ));
2800
2801 // Insert emoji
2802 let selection_start_anchor = snapshot.anchor_after(selection.start);
2803 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2804 edits.push((selection.start..selection.end, emoji.to_string().into()));
2805
2806 continue;
2807 }
2808 }
2809 }
2810 }
2811
2812 // If not handling any auto-close operation, then just replace the selected
2813 // text with the given input and move the selection to the end of the
2814 // newly inserted text.
2815 let anchor = snapshot.anchor_after(selection.end);
2816 new_selections.push((selection.map(|_| anchor), 0));
2817 edits.push((selection.start..selection.end, text.clone()));
2818 }
2819
2820 drop(snapshot);
2821 self.transact(cx, |this, cx| {
2822 this.buffer.update(cx, |buffer, cx| {
2823 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2824 });
2825
2826 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2827 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2828 let snapshot = this.buffer.read(cx).read(cx);
2829 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2830 .zip(new_selection_deltas)
2831 .map(|(selection, delta)| Selection {
2832 id: selection.id,
2833 start: selection.start + delta,
2834 end: selection.end + delta,
2835 reversed: selection.reversed,
2836 goal: SelectionGoal::None,
2837 })
2838 .collect::<Vec<_>>();
2839
2840 let mut i = 0;
2841 for (position, delta, selection_id, pair) in new_autoclose_regions {
2842 let position = position.to_offset(&snapshot) + delta;
2843 let start = snapshot.anchor_before(position);
2844 let end = snapshot.anchor_after(position);
2845 while let Some(existing_state) = this.autoclose_regions.get(i) {
2846 match existing_state.range.start.cmp(&start, &snapshot) {
2847 Ordering::Less => i += 1,
2848 Ordering::Greater => break,
2849 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2850 Ordering::Less => i += 1,
2851 Ordering::Equal => break,
2852 Ordering::Greater => break,
2853 },
2854 }
2855 }
2856 this.autoclose_regions.insert(
2857 i,
2858 AutocloseRegion {
2859 selection_id,
2860 range: start..end,
2861 pair,
2862 },
2863 );
2864 }
2865
2866 drop(snapshot);
2867 let had_active_inline_completion = this.has_active_inline_completion(cx);
2868 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2869 s.select(new_selections)
2870 });
2871
2872 if brace_inserted {
2873 // If we inserted a brace while composing text (i.e. typing `"` on a
2874 // Brazilian keyboard), exit the composing state because most likely
2875 // the user wanted to surround the selection.
2876 this.unmark_text(cx);
2877 } else if EditorSettings::get_global(cx).use_on_type_format {
2878 if let Some(on_type_format_task) =
2879 this.trigger_on_type_formatting(text.to_string(), cx)
2880 {
2881 on_type_format_task.detach_and_log_err(cx);
2882 }
2883 }
2884
2885 let trigger_in_words = !had_active_inline_completion;
2886 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2887 this.refresh_inline_completion(true, cx);
2888 });
2889 }
2890
2891 fn find_possible_emoji_shortcode_at_position(
2892 snapshot: &MultiBufferSnapshot,
2893 position: Point,
2894 ) -> Option<String> {
2895 let mut chars = Vec::new();
2896 let mut found_colon = false;
2897 for char in snapshot.reversed_chars_at(position).take(100) {
2898 // Found a possible emoji shortcode in the middle of the buffer
2899 if found_colon {
2900 if char.is_whitespace() {
2901 chars.reverse();
2902 return Some(chars.iter().collect());
2903 }
2904 // If the previous character is not a whitespace, we are in the middle of a word
2905 // and we only want to complete the shortcode if the word is made up of other emojis
2906 let mut containing_word = String::new();
2907 for ch in snapshot
2908 .reversed_chars_at(position)
2909 .skip(chars.len() + 1)
2910 .take(100)
2911 {
2912 if ch.is_whitespace() {
2913 break;
2914 }
2915 containing_word.push(ch);
2916 }
2917 let containing_word = containing_word.chars().rev().collect::<String>();
2918 if util::word_consists_of_emojis(containing_word.as_str()) {
2919 chars.reverse();
2920 return Some(chars.iter().collect());
2921 }
2922 }
2923
2924 if char.is_whitespace() || !char.is_ascii() {
2925 return None;
2926 }
2927 if char == ':' {
2928 found_colon = true;
2929 } else {
2930 chars.push(char);
2931 }
2932 }
2933 // Found a possible emoji shortcode at the beginning of the buffer
2934 chars.reverse();
2935 Some(chars.iter().collect())
2936 }
2937
2938 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2939 self.transact(cx, |this, cx| {
2940 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2941 let selections = this.selections.all::<usize>(cx);
2942 let multi_buffer = this.buffer.read(cx);
2943 let buffer = multi_buffer.snapshot(cx);
2944 selections
2945 .iter()
2946 .map(|selection| {
2947 let start_point = selection.start.to_point(&buffer);
2948 let mut indent =
2949 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2950 indent.len = cmp::min(indent.len, start_point.column);
2951 let start = selection.start;
2952 let end = selection.end;
2953 let selection_is_empty = start == end;
2954 let language_scope = buffer.language_scope_at(start);
2955 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2956 &language_scope
2957 {
2958 let leading_whitespace_len = buffer
2959 .reversed_chars_at(start)
2960 .take_while(|c| c.is_whitespace() && *c != '\n')
2961 .map(|c| c.len_utf8())
2962 .sum::<usize>();
2963
2964 let trailing_whitespace_len = buffer
2965 .chars_at(end)
2966 .take_while(|c| c.is_whitespace() && *c != '\n')
2967 .map(|c| c.len_utf8())
2968 .sum::<usize>();
2969
2970 let insert_extra_newline =
2971 language.brackets().any(|(pair, enabled)| {
2972 let pair_start = pair.start.trim_end();
2973 let pair_end = pair.end.trim_start();
2974
2975 enabled
2976 && pair.newline
2977 && buffer.contains_str_at(
2978 end + trailing_whitespace_len,
2979 pair_end,
2980 )
2981 && buffer.contains_str_at(
2982 (start - leading_whitespace_len)
2983 .saturating_sub(pair_start.len()),
2984 pair_start,
2985 )
2986 });
2987
2988 // Comment extension on newline is allowed only for cursor selections
2989 let comment_delimiter = maybe!({
2990 if !selection_is_empty {
2991 return None;
2992 }
2993
2994 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2995 return None;
2996 }
2997
2998 let delimiters = language.line_comment_prefixes();
2999 let max_len_of_delimiter =
3000 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3001 let (snapshot, range) =
3002 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3003
3004 let mut index_of_first_non_whitespace = 0;
3005 let comment_candidate = snapshot
3006 .chars_for_range(range)
3007 .skip_while(|c| {
3008 let should_skip = c.is_whitespace();
3009 if should_skip {
3010 index_of_first_non_whitespace += 1;
3011 }
3012 should_skip
3013 })
3014 .take(max_len_of_delimiter)
3015 .collect::<String>();
3016 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3017 comment_candidate.starts_with(comment_prefix.as_ref())
3018 })?;
3019 let cursor_is_placed_after_comment_marker =
3020 index_of_first_non_whitespace + comment_prefix.len()
3021 <= start_point.column as usize;
3022 if cursor_is_placed_after_comment_marker {
3023 Some(comment_prefix.clone())
3024 } else {
3025 None
3026 }
3027 });
3028 (comment_delimiter, insert_extra_newline)
3029 } else {
3030 (None, false)
3031 };
3032
3033 let capacity_for_delimiter = comment_delimiter
3034 .as_deref()
3035 .map(str::len)
3036 .unwrap_or_default();
3037 let mut new_text =
3038 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3039 new_text.push_str("\n");
3040 new_text.extend(indent.chars());
3041 if let Some(delimiter) = &comment_delimiter {
3042 new_text.push_str(&delimiter);
3043 }
3044 if insert_extra_newline {
3045 new_text = new_text.repeat(2);
3046 }
3047
3048 let anchor = buffer.anchor_after(end);
3049 let new_selection = selection.map(|_| anchor);
3050 (
3051 (start..end, new_text),
3052 (insert_extra_newline, new_selection),
3053 )
3054 })
3055 .unzip()
3056 };
3057
3058 this.edit_with_autoindent(edits, cx);
3059 let buffer = this.buffer.read(cx).snapshot(cx);
3060 let new_selections = selection_fixup_info
3061 .into_iter()
3062 .map(|(extra_newline_inserted, new_selection)| {
3063 let mut cursor = new_selection.end.to_point(&buffer);
3064 if extra_newline_inserted {
3065 cursor.row -= 1;
3066 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3067 }
3068 new_selection.map(|_| cursor)
3069 })
3070 .collect();
3071
3072 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3073 this.refresh_inline_completion(true, cx);
3074 });
3075 }
3076
3077 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3078 let buffer = self.buffer.read(cx);
3079 let snapshot = buffer.snapshot(cx);
3080
3081 let mut edits = Vec::new();
3082 let mut rows = Vec::new();
3083
3084 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3085 let cursor = selection.head();
3086 let row = cursor.row;
3087
3088 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3089
3090 let newline = "\n".to_string();
3091 edits.push((start_of_line..start_of_line, newline));
3092
3093 rows.push(row + rows_inserted as u32);
3094 }
3095
3096 self.transact(cx, |editor, cx| {
3097 editor.edit(edits, cx);
3098
3099 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3100 let mut index = 0;
3101 s.move_cursors_with(|map, _, _| {
3102 let row = rows[index];
3103 index += 1;
3104
3105 let point = Point::new(row, 0);
3106 let boundary = map.next_line_boundary(point).1;
3107 let clipped = map.clip_point(boundary, Bias::Left);
3108
3109 (clipped, SelectionGoal::None)
3110 });
3111 });
3112
3113 let mut indent_edits = Vec::new();
3114 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3115 for row in rows {
3116 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3117 for (row, indent) in indents {
3118 if indent.len == 0 {
3119 continue;
3120 }
3121
3122 let text = match indent.kind {
3123 IndentKind::Space => " ".repeat(indent.len as usize),
3124 IndentKind::Tab => "\t".repeat(indent.len as usize),
3125 };
3126 let point = Point::new(row.0, 0);
3127 indent_edits.push((point..point, text));
3128 }
3129 }
3130 editor.edit(indent_edits, cx);
3131 });
3132 }
3133
3134 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3135 let buffer = self.buffer.read(cx);
3136 let snapshot = buffer.snapshot(cx);
3137
3138 let mut edits = Vec::new();
3139 let mut rows = Vec::new();
3140 let mut rows_inserted = 0;
3141
3142 for selection in self.selections.all_adjusted(cx) {
3143 let cursor = selection.head();
3144 let row = cursor.row;
3145
3146 let point = Point::new(row + 1, 0);
3147 let start_of_line = snapshot.clip_point(point, Bias::Left);
3148
3149 let newline = "\n".to_string();
3150 edits.push((start_of_line..start_of_line, newline));
3151
3152 rows_inserted += 1;
3153 rows.push(row + rows_inserted);
3154 }
3155
3156 self.transact(cx, |editor, cx| {
3157 editor.edit(edits, cx);
3158
3159 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3160 let mut index = 0;
3161 s.move_cursors_with(|map, _, _| {
3162 let row = rows[index];
3163 index += 1;
3164
3165 let point = Point::new(row, 0);
3166 let boundary = map.next_line_boundary(point).1;
3167 let clipped = map.clip_point(boundary, Bias::Left);
3168
3169 (clipped, SelectionGoal::None)
3170 });
3171 });
3172
3173 let mut indent_edits = Vec::new();
3174 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3175 for row in rows {
3176 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3177 for (row, indent) in indents {
3178 if indent.len == 0 {
3179 continue;
3180 }
3181
3182 let text = match indent.kind {
3183 IndentKind::Space => " ".repeat(indent.len as usize),
3184 IndentKind::Tab => "\t".repeat(indent.len as usize),
3185 };
3186 let point = Point::new(row.0, 0);
3187 indent_edits.push((point..point, text));
3188 }
3189 }
3190 editor.edit(indent_edits, cx);
3191 });
3192 }
3193
3194 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3195 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3196 original_indent_columns: Vec::new(),
3197 });
3198 self.insert_with_autoindent_mode(text, autoindent, cx);
3199 }
3200
3201 fn insert_with_autoindent_mode(
3202 &mut self,
3203 text: &str,
3204 autoindent_mode: Option<AutoindentMode>,
3205 cx: &mut ViewContext<Self>,
3206 ) {
3207 if self.read_only(cx) {
3208 return;
3209 }
3210
3211 let text: Arc<str> = text.into();
3212 self.transact(cx, |this, cx| {
3213 let old_selections = this.selections.all_adjusted(cx);
3214 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3215 let anchors = {
3216 let snapshot = buffer.read(cx);
3217 old_selections
3218 .iter()
3219 .map(|s| {
3220 let anchor = snapshot.anchor_after(s.head());
3221 s.map(|_| anchor)
3222 })
3223 .collect::<Vec<_>>()
3224 };
3225 buffer.edit(
3226 old_selections
3227 .iter()
3228 .map(|s| (s.start..s.end, text.clone())),
3229 autoindent_mode,
3230 cx,
3231 );
3232 anchors
3233 });
3234
3235 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3236 s.select_anchors(selection_anchors);
3237 })
3238 });
3239 }
3240
3241 fn trigger_completion_on_input(
3242 &mut self,
3243 text: &str,
3244 trigger_in_words: bool,
3245 cx: &mut ViewContext<Self>,
3246 ) {
3247 if !EditorSettings::get_global(cx).show_completions_on_input {
3248 return;
3249 }
3250
3251 let selection = self.selections.newest_anchor();
3252 if self
3253 .buffer
3254 .read(cx)
3255 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3256 {
3257 self.show_completions(&ShowCompletions, cx);
3258 } else {
3259 self.hide_context_menu(cx);
3260 }
3261 }
3262
3263 /// If any empty selections is touching the start of its innermost containing autoclose
3264 /// region, expand it to select the brackets.
3265 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3266 let selections = self.selections.all::<usize>(cx);
3267 let buffer = self.buffer.read(cx).read(cx);
3268 let new_selections = self
3269 .selections_with_autoclose_regions(selections, &buffer)
3270 .map(|(mut selection, region)| {
3271 if !selection.is_empty() {
3272 return selection;
3273 }
3274
3275 if let Some(region) = region {
3276 let mut range = region.range.to_offset(&buffer);
3277 if selection.start == range.start && range.start >= region.pair.start.len() {
3278 range.start -= region.pair.start.len();
3279 if buffer.contains_str_at(range.start, ®ion.pair.start)
3280 && buffer.contains_str_at(range.end, ®ion.pair.end)
3281 {
3282 range.end += region.pair.end.len();
3283 selection.start = range.start;
3284 selection.end = range.end;
3285
3286 return selection;
3287 }
3288 }
3289 }
3290
3291 let always_treat_brackets_as_autoclosed = buffer
3292 .settings_at(selection.start, cx)
3293 .always_treat_brackets_as_autoclosed;
3294
3295 if !always_treat_brackets_as_autoclosed {
3296 return selection;
3297 }
3298
3299 if let Some(scope) = buffer.language_scope_at(selection.start) {
3300 for (pair, enabled) in scope.brackets() {
3301 if !enabled || !pair.close {
3302 continue;
3303 }
3304
3305 if buffer.contains_str_at(selection.start, &pair.end) {
3306 let pair_start_len = pair.start.len();
3307 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3308 {
3309 selection.start -= pair_start_len;
3310 selection.end += pair.end.len();
3311
3312 return selection;
3313 }
3314 }
3315 }
3316 }
3317
3318 selection
3319 })
3320 .collect();
3321
3322 drop(buffer);
3323 self.change_selections(None, cx, |selections| selections.select(new_selections));
3324 }
3325
3326 /// Iterate the given selections, and for each one, find the smallest surrounding
3327 /// autoclose region. This uses the ordering of the selections and the autoclose
3328 /// regions to avoid repeated comparisons.
3329 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3330 &'a self,
3331 selections: impl IntoIterator<Item = Selection<D>>,
3332 buffer: &'a MultiBufferSnapshot,
3333 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3334 let mut i = 0;
3335 let mut regions = self.autoclose_regions.as_slice();
3336 selections.into_iter().map(move |selection| {
3337 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3338
3339 let mut enclosing = None;
3340 while let Some(pair_state) = regions.get(i) {
3341 if pair_state.range.end.to_offset(buffer) < range.start {
3342 regions = ®ions[i + 1..];
3343 i = 0;
3344 } else if pair_state.range.start.to_offset(buffer) > range.end {
3345 break;
3346 } else {
3347 if pair_state.selection_id == selection.id {
3348 enclosing = Some(pair_state);
3349 }
3350 i += 1;
3351 }
3352 }
3353
3354 (selection.clone(), enclosing)
3355 })
3356 }
3357
3358 /// Remove any autoclose regions that no longer contain their selection.
3359 fn invalidate_autoclose_regions(
3360 &mut self,
3361 mut selections: &[Selection<Anchor>],
3362 buffer: &MultiBufferSnapshot,
3363 ) {
3364 self.autoclose_regions.retain(|state| {
3365 let mut i = 0;
3366 while let Some(selection) = selections.get(i) {
3367 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3368 selections = &selections[1..];
3369 continue;
3370 }
3371 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3372 break;
3373 }
3374 if selection.id == state.selection_id {
3375 return true;
3376 } else {
3377 i += 1;
3378 }
3379 }
3380 false
3381 });
3382 }
3383
3384 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3385 let offset = position.to_offset(buffer);
3386 let (word_range, kind) = buffer.surrounding_word(offset);
3387 if offset > word_range.start && kind == Some(CharKind::Word) {
3388 Some(
3389 buffer
3390 .text_for_range(word_range.start..offset)
3391 .collect::<String>(),
3392 )
3393 } else {
3394 None
3395 }
3396 }
3397
3398 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3399 self.refresh_inlay_hints(
3400 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3401 cx,
3402 );
3403 }
3404
3405 pub fn inlay_hints_enabled(&self) -> bool {
3406 self.inlay_hint_cache.enabled
3407 }
3408
3409 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3410 if self.project.is_none() || self.mode != EditorMode::Full {
3411 return;
3412 }
3413
3414 let reason_description = reason.description();
3415 let ignore_debounce = matches!(
3416 reason,
3417 InlayHintRefreshReason::SettingsChange(_)
3418 | InlayHintRefreshReason::Toggle(_)
3419 | InlayHintRefreshReason::ExcerptsRemoved(_)
3420 );
3421 let (invalidate_cache, required_languages) = match reason {
3422 InlayHintRefreshReason::Toggle(enabled) => {
3423 self.inlay_hint_cache.enabled = enabled;
3424 if enabled {
3425 (InvalidationStrategy::RefreshRequested, None)
3426 } else {
3427 self.inlay_hint_cache.clear();
3428 self.splice_inlays(
3429 self.visible_inlay_hints(cx)
3430 .iter()
3431 .map(|inlay| inlay.id)
3432 .collect(),
3433 Vec::new(),
3434 cx,
3435 );
3436 return;
3437 }
3438 }
3439 InlayHintRefreshReason::SettingsChange(new_settings) => {
3440 match self.inlay_hint_cache.update_settings(
3441 &self.buffer,
3442 new_settings,
3443 self.visible_inlay_hints(cx),
3444 cx,
3445 ) {
3446 ControlFlow::Break(Some(InlaySplice {
3447 to_remove,
3448 to_insert,
3449 })) => {
3450 self.splice_inlays(to_remove, to_insert, cx);
3451 return;
3452 }
3453 ControlFlow::Break(None) => return,
3454 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3455 }
3456 }
3457 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3458 if let Some(InlaySplice {
3459 to_remove,
3460 to_insert,
3461 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3462 {
3463 self.splice_inlays(to_remove, to_insert, cx);
3464 }
3465 return;
3466 }
3467 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3468 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3469 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3470 }
3471 InlayHintRefreshReason::RefreshRequested => {
3472 (InvalidationStrategy::RefreshRequested, None)
3473 }
3474 };
3475
3476 if let Some(InlaySplice {
3477 to_remove,
3478 to_insert,
3479 }) = self.inlay_hint_cache.spawn_hint_refresh(
3480 reason_description,
3481 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3482 invalidate_cache,
3483 ignore_debounce,
3484 cx,
3485 ) {
3486 self.splice_inlays(to_remove, to_insert, cx);
3487 }
3488 }
3489
3490 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3491 self.display_map
3492 .read(cx)
3493 .current_inlays()
3494 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3495 .cloned()
3496 .collect()
3497 }
3498
3499 pub fn excerpts_for_inlay_hints_query(
3500 &self,
3501 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3502 cx: &mut ViewContext<Editor>,
3503 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3504 let Some(project) = self.project.as_ref() else {
3505 return HashMap::default();
3506 };
3507 let project = project.read(cx);
3508 let multi_buffer = self.buffer().read(cx);
3509 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3510 let multi_buffer_visible_start = self
3511 .scroll_manager
3512 .anchor()
3513 .anchor
3514 .to_point(&multi_buffer_snapshot);
3515 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3516 multi_buffer_visible_start
3517 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3518 Bias::Left,
3519 );
3520 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3521 multi_buffer
3522 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3523 .into_iter()
3524 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3525 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3526 let buffer = buffer_handle.read(cx);
3527 let buffer_file = project::File::from_dyn(buffer.file())?;
3528 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3529 let worktree_entry = buffer_worktree
3530 .read(cx)
3531 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3532 if worktree_entry.is_ignored {
3533 return None;
3534 }
3535
3536 let language = buffer.language()?;
3537 if let Some(restrict_to_languages) = restrict_to_languages {
3538 if !restrict_to_languages.contains(language) {
3539 return None;
3540 }
3541 }
3542 Some((
3543 excerpt_id,
3544 (
3545 buffer_handle,
3546 buffer.version().clone(),
3547 excerpt_visible_range,
3548 ),
3549 ))
3550 })
3551 .collect()
3552 }
3553
3554 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3555 TextLayoutDetails {
3556 text_system: cx.text_system().clone(),
3557 editor_style: self.style.clone().unwrap(),
3558 rem_size: cx.rem_size(),
3559 scroll_anchor: self.scroll_manager.anchor(),
3560 visible_rows: self.visible_line_count(),
3561 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3562 }
3563 }
3564
3565 fn splice_inlays(
3566 &self,
3567 to_remove: Vec<InlayId>,
3568 to_insert: Vec<Inlay>,
3569 cx: &mut ViewContext<Self>,
3570 ) {
3571 self.display_map.update(cx, |display_map, cx| {
3572 display_map.splice_inlays(to_remove, to_insert, cx);
3573 });
3574 cx.notify();
3575 }
3576
3577 fn trigger_on_type_formatting(
3578 &self,
3579 input: String,
3580 cx: &mut ViewContext<Self>,
3581 ) -> Option<Task<Result<()>>> {
3582 if input.len() != 1 {
3583 return None;
3584 }
3585
3586 let project = self.project.as_ref()?;
3587 let position = self.selections.newest_anchor().head();
3588 let (buffer, buffer_position) = self
3589 .buffer
3590 .read(cx)
3591 .text_anchor_for_position(position, cx)?;
3592
3593 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3594 // hence we do LSP request & edit on host side only — add formats to host's history.
3595 let push_to_lsp_host_history = true;
3596 // If this is not the host, append its history with new edits.
3597 let push_to_client_history = project.read(cx).is_remote();
3598
3599 let on_type_formatting = project.update(cx, |project, cx| {
3600 project.on_type_format(
3601 buffer.clone(),
3602 buffer_position,
3603 input,
3604 push_to_lsp_host_history,
3605 cx,
3606 )
3607 });
3608 Some(cx.spawn(|editor, mut cx| async move {
3609 if let Some(transaction) = on_type_formatting.await? {
3610 if push_to_client_history {
3611 buffer
3612 .update(&mut cx, |buffer, _| {
3613 buffer.push_transaction(transaction, Instant::now());
3614 })
3615 .ok();
3616 }
3617 editor.update(&mut cx, |editor, cx| {
3618 editor.refresh_document_highlights(cx);
3619 })?;
3620 }
3621 Ok(())
3622 }))
3623 }
3624
3625 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3626 if self.pending_rename.is_some() {
3627 return;
3628 }
3629
3630 let Some(provider) = self.completion_provider.as_ref() else {
3631 return;
3632 };
3633
3634 let position = self.selections.newest_anchor().head();
3635 let (buffer, buffer_position) =
3636 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3637 output
3638 } else {
3639 return;
3640 };
3641
3642 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3643 let completions = provider.completions(&buffer, buffer_position, cx);
3644
3645 let id = post_inc(&mut self.next_completion_id);
3646 let task = cx.spawn(|this, mut cx| {
3647 async move {
3648 let completions = completions.await.log_err();
3649 let menu = if let Some(completions) = completions {
3650 let mut menu = CompletionsMenu {
3651 id,
3652 initial_position: position,
3653 match_candidates: completions
3654 .iter()
3655 .enumerate()
3656 .map(|(id, completion)| {
3657 StringMatchCandidate::new(
3658 id,
3659 completion.label.text[completion.label.filter_range.clone()]
3660 .into(),
3661 )
3662 })
3663 .collect(),
3664 buffer: buffer.clone(),
3665 completions: Arc::new(RwLock::new(completions.into())),
3666 matches: Vec::new().into(),
3667 selected_item: 0,
3668 scroll_handle: UniformListScrollHandle::new(),
3669 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3670 DebouncedDelay::new(),
3671 )),
3672 };
3673 menu.filter(query.as_deref(), cx.background_executor().clone())
3674 .await;
3675
3676 if menu.matches.is_empty() {
3677 None
3678 } else {
3679 this.update(&mut cx, |editor, cx| {
3680 let completions = menu.completions.clone();
3681 let matches = menu.matches.clone();
3682
3683 let delay_ms = EditorSettings::get_global(cx)
3684 .completion_documentation_secondary_query_debounce;
3685 let delay = Duration::from_millis(delay_ms);
3686
3687 editor
3688 .completion_documentation_pre_resolve_debounce
3689 .fire_new(delay, cx, |editor, cx| {
3690 CompletionsMenu::pre_resolve_completion_documentation(
3691 buffer,
3692 completions,
3693 matches,
3694 editor,
3695 cx,
3696 )
3697 });
3698 })
3699 .ok();
3700 Some(menu)
3701 }
3702 } else {
3703 None
3704 };
3705
3706 this.update(&mut cx, |this, cx| {
3707 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3708
3709 let mut context_menu = this.context_menu.write();
3710 match context_menu.as_ref() {
3711 None => {}
3712
3713 Some(ContextMenu::Completions(prev_menu)) => {
3714 if prev_menu.id > id {
3715 return;
3716 }
3717 }
3718
3719 _ => return,
3720 }
3721
3722 if this.focus_handle.is_focused(cx) && menu.is_some() {
3723 let menu = menu.unwrap();
3724 *context_menu = Some(ContextMenu::Completions(menu));
3725 drop(context_menu);
3726 this.discard_inline_completion(false, cx);
3727 cx.notify();
3728 } else if this.completion_tasks.len() <= 1 {
3729 // If there are no more completion tasks and the last menu was
3730 // empty, we should hide it. If it was already hidden, we should
3731 // also show the copilot completion when available.
3732 drop(context_menu);
3733 if this.hide_context_menu(cx).is_none() {
3734 this.update_visible_inline_completion(cx);
3735 }
3736 }
3737 })?;
3738
3739 Ok::<_, anyhow::Error>(())
3740 }
3741 .log_err()
3742 });
3743
3744 self.completion_tasks.push((id, task));
3745 }
3746
3747 pub fn confirm_completion(
3748 &mut self,
3749 action: &ConfirmCompletion,
3750 cx: &mut ViewContext<Self>,
3751 ) -> Option<Task<Result<()>>> {
3752 use language::ToOffset as _;
3753
3754 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3755 menu
3756 } else {
3757 return None;
3758 };
3759
3760 let mat = completions_menu
3761 .matches
3762 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3763 let buffer_handle = completions_menu.buffer;
3764 let completions = completions_menu.completions.read();
3765 let completion = completions.get(mat.candidate_id)?;
3766 cx.stop_propagation();
3767
3768 let snippet;
3769 let text;
3770 if completion.is_snippet() {
3771 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3772 text = snippet.as_ref().unwrap().text.clone();
3773 } else {
3774 snippet = None;
3775 text = completion.new_text.clone();
3776 };
3777 let selections = self.selections.all::<usize>(cx);
3778 let buffer = buffer_handle.read(cx);
3779 let old_range = completion.old_range.to_offset(buffer);
3780 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3781
3782 let newest_selection = self.selections.newest_anchor();
3783 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3784 return None;
3785 }
3786
3787 let lookbehind = newest_selection
3788 .start
3789 .text_anchor
3790 .to_offset(buffer)
3791 .saturating_sub(old_range.start);
3792 let lookahead = old_range
3793 .end
3794 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3795 let mut common_prefix_len = old_text
3796 .bytes()
3797 .zip(text.bytes())
3798 .take_while(|(a, b)| a == b)
3799 .count();
3800
3801 let snapshot = self.buffer.read(cx).snapshot(cx);
3802 let mut range_to_replace: Option<Range<isize>> = None;
3803 let mut ranges = Vec::new();
3804 for selection in &selections {
3805 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3806 let start = selection.start.saturating_sub(lookbehind);
3807 let end = selection.end + lookahead;
3808 if selection.id == newest_selection.id {
3809 range_to_replace = Some(
3810 ((start + common_prefix_len) as isize - selection.start as isize)
3811 ..(end as isize - selection.start as isize),
3812 );
3813 }
3814 ranges.push(start + common_prefix_len..end);
3815 } else {
3816 common_prefix_len = 0;
3817 ranges.clear();
3818 ranges.extend(selections.iter().map(|s| {
3819 if s.id == newest_selection.id {
3820 range_to_replace = Some(
3821 old_range.start.to_offset_utf16(&snapshot).0 as isize
3822 - selection.start as isize
3823 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3824 - selection.start as isize,
3825 );
3826 old_range.clone()
3827 } else {
3828 s.start..s.end
3829 }
3830 }));
3831 break;
3832 }
3833 }
3834 let text = &text[common_prefix_len..];
3835
3836 cx.emit(EditorEvent::InputHandled {
3837 utf16_range_to_replace: range_to_replace,
3838 text: text.into(),
3839 });
3840
3841 self.transact(cx, |this, cx| {
3842 if let Some(mut snippet) = snippet {
3843 snippet.text = text.to_string();
3844 for tabstop in snippet.tabstops.iter_mut().flatten() {
3845 tabstop.start -= common_prefix_len as isize;
3846 tabstop.end -= common_prefix_len as isize;
3847 }
3848
3849 this.insert_snippet(&ranges, snippet, cx).log_err();
3850 } else {
3851 this.buffer.update(cx, |buffer, cx| {
3852 buffer.edit(
3853 ranges.iter().map(|range| (range.clone(), text)),
3854 this.autoindent_mode.clone(),
3855 cx,
3856 );
3857 });
3858 }
3859
3860 this.refresh_inline_completion(true, cx);
3861 });
3862
3863 let provider = self.completion_provider.as_ref()?;
3864 let apply_edits = provider.apply_additional_edits_for_completion(
3865 buffer_handle,
3866 completion.clone(),
3867 true,
3868 cx,
3869 );
3870 Some(cx.foreground_executor().spawn(async move {
3871 apply_edits.await?;
3872 Ok(())
3873 }))
3874 }
3875
3876 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3877 let mut context_menu = self.context_menu.write();
3878 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3879 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3880 // Toggle if we're selecting the same one
3881 *context_menu = None;
3882 cx.notify();
3883 return;
3884 } else {
3885 // Otherwise, clear it and start a new one
3886 *context_menu = None;
3887 cx.notify();
3888 }
3889 }
3890 drop(context_menu);
3891 let snapshot = self.snapshot(cx);
3892 let deployed_from_indicator = action.deployed_from_indicator;
3893 let mut task = self.code_actions_task.take();
3894 let action = action.clone();
3895 cx.spawn(|this, mut cx| async move {
3896 while let Some(prev_task) = task {
3897 prev_task.await;
3898 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3899 }
3900
3901 let spawned_test_task = this.update(&mut cx, |this, cx| {
3902 if this.focus_handle.is_focused(cx) {
3903 let multibuffer_point = action
3904 .deployed_from_indicator
3905 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3906 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head());
3907 let (buffer, buffer_row) = snapshot
3908 .buffer_snapshot
3909 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3910 .and_then(|(buffer_snapshot, range)| {
3911 this.buffer
3912 .read(cx)
3913 .buffer(buffer_snapshot.remote_id())
3914 .map(|buffer| (buffer, range.start.row))
3915 })?;
3916 let (_, code_actions) = this
3917 .available_code_actions
3918 .clone()
3919 .and_then(|(location, code_actions)| {
3920 let snapshot = location.buffer.read(cx).snapshot();
3921 let point_range = location.range.to_point(&snapshot);
3922 let point_range = point_range.start.row..=point_range.end.row;
3923 if point_range.contains(&buffer_row) {
3924 Some((location, code_actions))
3925 } else {
3926 None
3927 }
3928 })
3929 .unzip();
3930 let buffer_id = buffer.read(cx).remote_id();
3931 let tasks = this
3932 .tasks
3933 .get(&(buffer_id, buffer_row))
3934 .map(|t| Arc::new(t.to_owned()));
3935 if tasks.is_none() && code_actions.is_none() {
3936 return None;
3937 }
3938
3939 this.completion_tasks.clear();
3940 this.discard_inline_completion(false, cx);
3941 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3942 |(tasks, (workspace, _))| {
3943 let position = Point::new(buffer_row, tasks.1.column);
3944 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3945 let location = Location {
3946 buffer: buffer.clone(),
3947 range: range_start..range_start,
3948 };
3949 workspace
3950 .update(cx, |workspace, cx| {
3951 tasks::task_context_for_location(workspace, location, cx)
3952 })
3953 .ok()
3954 .flatten()
3955 },
3956 );
3957 let tasks = tasks.zip(task_context).map(|(tasks, mut task_context)| {
3958 // Fill in the environmental variables from the tree-sitter captures
3959 let mut additional_task_variables = TaskVariables::default();
3960 for (capture_name, value) in tasks.1.extra_variables.clone() {
3961 additional_task_variables.insert(
3962 task::VariableName::Custom(capture_name.into()),
3963 value.clone(),
3964 );
3965 }
3966 task_context
3967 .task_variables
3968 .extend(additional_task_variables);
3969
3970 Arc::new(ResolvedTasks {
3971 templates: tasks
3972 .1
3973 .templates
3974 .iter()
3975 .filter_map(|(kind, template)| {
3976 template
3977 .resolve_task(&kind.to_id_base(), &task_context)
3978 .map(|task| (kind.clone(), task))
3979 })
3980 .collect(),
3981 position: snapshot
3982 .buffer_snapshot
3983 .anchor_before(Point::new(multibuffer_point.row, tasks.1.column)),
3984 })
3985 });
3986 let spawn_straight_away = tasks
3987 .as_ref()
3988 .map_or(false, |tasks| tasks.templates.len() == 1)
3989 && code_actions
3990 .as_ref()
3991 .map_or(true, |actions| actions.is_empty());
3992 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3993 buffer,
3994 actions: CodeActionContents {
3995 tasks,
3996 actions: code_actions,
3997 },
3998 selected_item: Default::default(),
3999 scroll_handle: UniformListScrollHandle::default(),
4000 deployed_from_indicator,
4001 }));
4002 if spawn_straight_away {
4003 if let Some(task) =
4004 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
4005 {
4006 cx.notify();
4007 return Some(task);
4008 }
4009 }
4010 cx.notify();
4011 }
4012 Some(Task::ready(Ok(())))
4013 })?;
4014 if let Some(task) = spawned_test_task {
4015 task.await?;
4016 }
4017
4018 Ok::<_, anyhow::Error>(())
4019 })
4020 .detach_and_log_err(cx);
4021 }
4022
4023 pub fn confirm_code_action(
4024 &mut self,
4025 action: &ConfirmCodeAction,
4026 cx: &mut ViewContext<Self>,
4027 ) -> Option<Task<Result<()>>> {
4028 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4029 menu
4030 } else {
4031 return None;
4032 };
4033 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4034 let action = actions_menu.actions.get(action_ix)?;
4035 let title = action.label();
4036 let buffer = actions_menu.buffer;
4037 let workspace = self.workspace()?;
4038
4039 match action {
4040 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4041 workspace.update(cx, |workspace, cx| {
4042 workspace::tasks::schedule_resolved_task(
4043 workspace,
4044 task_source_kind,
4045 resolved_task,
4046 false,
4047 cx,
4048 );
4049
4050 Some(Task::ready(Ok(())))
4051 })
4052 }
4053 CodeActionsItem::CodeAction(action) => {
4054 let apply_code_actions = workspace
4055 .read(cx)
4056 .project()
4057 .clone()
4058 .update(cx, |project, cx| {
4059 project.apply_code_action(buffer, action, true, cx)
4060 });
4061 let workspace = workspace.downgrade();
4062 Some(cx.spawn(|editor, cx| async move {
4063 let project_transaction = apply_code_actions.await?;
4064 Self::open_project_transaction(
4065 &editor,
4066 workspace,
4067 project_transaction,
4068 title,
4069 cx,
4070 )
4071 .await
4072 }))
4073 }
4074 }
4075 }
4076
4077 pub async fn open_project_transaction(
4078 this: &WeakView<Editor>,
4079 workspace: WeakView<Workspace>,
4080 transaction: ProjectTransaction,
4081 title: String,
4082 mut cx: AsyncWindowContext,
4083 ) -> Result<()> {
4084 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4085
4086 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4087 cx.update(|cx| {
4088 entries.sort_unstable_by_key(|(buffer, _)| {
4089 buffer.read(cx).file().map(|f| f.path().clone())
4090 });
4091 })?;
4092
4093 // If the project transaction's edits are all contained within this editor, then
4094 // avoid opening a new editor to display them.
4095
4096 if let Some((buffer, transaction)) = entries.first() {
4097 if entries.len() == 1 {
4098 let excerpt = this.update(&mut cx, |editor, cx| {
4099 editor
4100 .buffer()
4101 .read(cx)
4102 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4103 })?;
4104 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4105 if excerpted_buffer == *buffer {
4106 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4107 let excerpt_range = excerpt_range.to_offset(buffer);
4108 buffer
4109 .edited_ranges_for_transaction::<usize>(transaction)
4110 .all(|range| {
4111 excerpt_range.start <= range.start
4112 && excerpt_range.end >= range.end
4113 })
4114 })?;
4115
4116 if all_edits_within_excerpt {
4117 return Ok(());
4118 }
4119 }
4120 }
4121 }
4122 } else {
4123 return Ok(());
4124 }
4125
4126 let mut ranges_to_highlight = Vec::new();
4127 let excerpt_buffer = cx.new_model(|cx| {
4128 let mut multibuffer =
4129 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4130 for (buffer_handle, transaction) in &entries {
4131 let buffer = buffer_handle.read(cx);
4132 ranges_to_highlight.extend(
4133 multibuffer.push_excerpts_with_context_lines(
4134 buffer_handle.clone(),
4135 buffer
4136 .edited_ranges_for_transaction::<usize>(transaction)
4137 .collect(),
4138 DEFAULT_MULTIBUFFER_CONTEXT,
4139 cx,
4140 ),
4141 );
4142 }
4143 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4144 multibuffer
4145 })?;
4146
4147 workspace.update(&mut cx, |workspace, cx| {
4148 let project = workspace.project().clone();
4149 let editor =
4150 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4151 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4152 editor.update(cx, |editor, cx| {
4153 editor.highlight_background::<Self>(
4154 &ranges_to_highlight,
4155 |theme| theme.editor_highlighted_line_background,
4156 cx,
4157 );
4158 });
4159 })?;
4160
4161 Ok(())
4162 }
4163
4164 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4165 let project = self.project.clone()?;
4166 let buffer = self.buffer.read(cx);
4167 let newest_selection = self.selections.newest_anchor().clone();
4168 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4169 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4170 if start_buffer != end_buffer {
4171 return None;
4172 }
4173
4174 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4175 cx.background_executor()
4176 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4177 .await;
4178
4179 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4180 project.code_actions(&start_buffer, start..end, cx)
4181 }) {
4182 code_actions.await
4183 } else {
4184 Vec::new()
4185 };
4186
4187 this.update(&mut cx, |this, cx| {
4188 this.available_code_actions = if actions.is_empty() {
4189 None
4190 } else {
4191 Some((
4192 Location {
4193 buffer: start_buffer,
4194 range: start..end,
4195 },
4196 actions.into(),
4197 ))
4198 };
4199 cx.notify();
4200 })
4201 .log_err();
4202 }));
4203 None
4204 }
4205
4206 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4207 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4208 self.show_git_blame_inline = false;
4209
4210 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4211 cx.background_executor().timer(delay).await;
4212
4213 this.update(&mut cx, |this, cx| {
4214 this.show_git_blame_inline = true;
4215 cx.notify();
4216 })
4217 .log_err();
4218 }));
4219 }
4220 }
4221
4222 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4223 if self.pending_rename.is_some() {
4224 return None;
4225 }
4226
4227 let project = self.project.clone()?;
4228 let buffer = self.buffer.read(cx);
4229 let newest_selection = self.selections.newest_anchor().clone();
4230 let cursor_position = newest_selection.head();
4231 let (cursor_buffer, cursor_buffer_position) =
4232 buffer.text_anchor_for_position(cursor_position, cx)?;
4233 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4234 if cursor_buffer != tail_buffer {
4235 return None;
4236 }
4237
4238 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4239 cx.background_executor()
4240 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4241 .await;
4242
4243 let highlights = if let Some(highlights) = project
4244 .update(&mut cx, |project, cx| {
4245 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4246 })
4247 .log_err()
4248 {
4249 highlights.await.log_err()
4250 } else {
4251 None
4252 };
4253
4254 if let Some(highlights) = highlights {
4255 this.update(&mut cx, |this, cx| {
4256 if this.pending_rename.is_some() {
4257 return;
4258 }
4259
4260 let buffer_id = cursor_position.buffer_id;
4261 let buffer = this.buffer.read(cx);
4262 if !buffer
4263 .text_anchor_for_position(cursor_position, cx)
4264 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4265 {
4266 return;
4267 }
4268
4269 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4270 let mut write_ranges = Vec::new();
4271 let mut read_ranges = Vec::new();
4272 for highlight in highlights {
4273 for (excerpt_id, excerpt_range) in
4274 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4275 {
4276 let start = highlight
4277 .range
4278 .start
4279 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4280 let end = highlight
4281 .range
4282 .end
4283 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4284 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4285 continue;
4286 }
4287
4288 let range = Anchor {
4289 buffer_id,
4290 excerpt_id: excerpt_id,
4291 text_anchor: start,
4292 }..Anchor {
4293 buffer_id,
4294 excerpt_id,
4295 text_anchor: end,
4296 };
4297 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4298 write_ranges.push(range);
4299 } else {
4300 read_ranges.push(range);
4301 }
4302 }
4303 }
4304
4305 this.highlight_background::<DocumentHighlightRead>(
4306 &read_ranges,
4307 |theme| theme.editor_document_highlight_read_background,
4308 cx,
4309 );
4310 this.highlight_background::<DocumentHighlightWrite>(
4311 &write_ranges,
4312 |theme| theme.editor_document_highlight_write_background,
4313 cx,
4314 );
4315 cx.notify();
4316 })
4317 .log_err();
4318 }
4319 }));
4320 None
4321 }
4322
4323 fn refresh_inline_completion(
4324 &mut self,
4325 debounce: bool,
4326 cx: &mut ViewContext<Self>,
4327 ) -> Option<()> {
4328 let provider = self.inline_completion_provider()?;
4329 let cursor = self.selections.newest_anchor().head();
4330 let (buffer, cursor_buffer_position) =
4331 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4332 if !self.show_inline_completions
4333 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4334 {
4335 self.discard_inline_completion(false, cx);
4336 return None;
4337 }
4338
4339 self.update_visible_inline_completion(cx);
4340 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4341 Some(())
4342 }
4343
4344 fn cycle_inline_completion(
4345 &mut self,
4346 direction: Direction,
4347 cx: &mut ViewContext<Self>,
4348 ) -> Option<()> {
4349 let provider = self.inline_completion_provider()?;
4350 let cursor = self.selections.newest_anchor().head();
4351 let (buffer, cursor_buffer_position) =
4352 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4353 if !self.show_inline_completions
4354 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4355 {
4356 return None;
4357 }
4358
4359 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4360 self.update_visible_inline_completion(cx);
4361
4362 Some(())
4363 }
4364
4365 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4366 if !self.has_active_inline_completion(cx) {
4367 self.refresh_inline_completion(false, cx);
4368 return;
4369 }
4370
4371 self.update_visible_inline_completion(cx);
4372 }
4373
4374 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4375 self.show_cursor_names(cx);
4376 }
4377
4378 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4379 self.show_cursor_names = true;
4380 cx.notify();
4381 cx.spawn(|this, mut cx| async move {
4382 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4383 this.update(&mut cx, |this, cx| {
4384 this.show_cursor_names = false;
4385 cx.notify()
4386 })
4387 .ok()
4388 })
4389 .detach();
4390 }
4391
4392 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4393 if self.has_active_inline_completion(cx) {
4394 self.cycle_inline_completion(Direction::Next, cx);
4395 } else {
4396 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4397 if is_copilot_disabled {
4398 cx.propagate();
4399 }
4400 }
4401 }
4402
4403 pub fn previous_inline_completion(
4404 &mut self,
4405 _: &PreviousInlineCompletion,
4406 cx: &mut ViewContext<Self>,
4407 ) {
4408 if self.has_active_inline_completion(cx) {
4409 self.cycle_inline_completion(Direction::Prev, cx);
4410 } else {
4411 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4412 if is_copilot_disabled {
4413 cx.propagate();
4414 }
4415 }
4416 }
4417
4418 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4419 if let Some(completion) = self.take_active_inline_completion(cx) {
4420 if let Some(provider) = self.inline_completion_provider() {
4421 provider.accept(cx);
4422 }
4423
4424 cx.emit(EditorEvent::InputHandled {
4425 utf16_range_to_replace: None,
4426 text: completion.text.to_string().into(),
4427 });
4428 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4429 self.refresh_inline_completion(true, cx);
4430 cx.notify();
4431 true
4432 } else {
4433 false
4434 }
4435 }
4436
4437 pub fn accept_partial_inline_completion(
4438 &mut self,
4439 _: &AcceptPartialInlineCompletion,
4440 cx: &mut ViewContext<Self>,
4441 ) {
4442 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4443 if let Some(completion) = self.take_active_inline_completion(cx) {
4444 let mut partial_completion = completion
4445 .text
4446 .chars()
4447 .by_ref()
4448 .take_while(|c| c.is_alphabetic())
4449 .collect::<String>();
4450 if partial_completion.is_empty() {
4451 partial_completion = completion
4452 .text
4453 .chars()
4454 .by_ref()
4455 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4456 .collect::<String>();
4457 }
4458
4459 cx.emit(EditorEvent::InputHandled {
4460 utf16_range_to_replace: None,
4461 text: partial_completion.clone().into(),
4462 });
4463 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4464 self.refresh_inline_completion(true, cx);
4465 cx.notify();
4466 }
4467 }
4468 }
4469
4470 fn discard_inline_completion(
4471 &mut self,
4472 should_report_inline_completion_event: bool,
4473 cx: &mut ViewContext<Self>,
4474 ) -> bool {
4475 if let Some(provider) = self.inline_completion_provider() {
4476 provider.discard(should_report_inline_completion_event, cx);
4477 }
4478
4479 self.take_active_inline_completion(cx).is_some()
4480 }
4481
4482 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4483 if let Some(completion) = self.active_inline_completion.as_ref() {
4484 let buffer = self.buffer.read(cx).read(cx);
4485 completion.position.is_valid(&buffer)
4486 } else {
4487 false
4488 }
4489 }
4490
4491 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4492 let completion = self.active_inline_completion.take()?;
4493 self.display_map.update(cx, |map, cx| {
4494 map.splice_inlays(vec![completion.id], Default::default(), cx);
4495 });
4496 let buffer = self.buffer.read(cx).read(cx);
4497
4498 if completion.position.is_valid(&buffer) {
4499 Some(completion)
4500 } else {
4501 None
4502 }
4503 }
4504
4505 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4506 let selection = self.selections.newest_anchor();
4507 let cursor = selection.head();
4508
4509 if self.context_menu.read().is_none()
4510 && self.completion_tasks.is_empty()
4511 && selection.start == selection.end
4512 {
4513 if let Some(provider) = self.inline_completion_provider() {
4514 if let Some((buffer, cursor_buffer_position)) =
4515 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4516 {
4517 if let Some(text) =
4518 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4519 {
4520 let text = Rope::from(text);
4521 let mut to_remove = Vec::new();
4522 if let Some(completion) = self.active_inline_completion.take() {
4523 to_remove.push(completion.id);
4524 }
4525
4526 let completion_inlay =
4527 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4528 self.active_inline_completion = Some(completion_inlay.clone());
4529 self.display_map.update(cx, move |map, cx| {
4530 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4531 });
4532 cx.notify();
4533 return;
4534 }
4535 }
4536 }
4537 }
4538
4539 self.discard_inline_completion(false, cx);
4540 }
4541
4542 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4543 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4544 }
4545
4546 fn render_code_actions_indicator(
4547 &self,
4548 _style: &EditorStyle,
4549 row: DisplayRow,
4550 is_active: bool,
4551 cx: &mut ViewContext<Self>,
4552 ) -> Option<IconButton> {
4553 if self.available_code_actions.is_some() {
4554 Some(
4555 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4556 .icon_size(IconSize::XSmall)
4557 .size(ui::ButtonSize::None)
4558 .icon_color(Color::Muted)
4559 .selected(is_active)
4560 .on_click(cx.listener(move |editor, _e, cx| {
4561 editor.focus(cx);
4562 editor.toggle_code_actions(
4563 &ToggleCodeActions {
4564 deployed_from_indicator: Some(row),
4565 },
4566 cx,
4567 );
4568 })),
4569 )
4570 } else {
4571 None
4572 }
4573 }
4574
4575 fn clear_tasks(&mut self) {
4576 self.tasks.clear()
4577 }
4578
4579 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: (usize, RunnableTasks)) {
4580 if let Some(_) = self.tasks.insert(key, value) {
4581 // This case should hopefully be rare, but just in case...
4582 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4583 }
4584 }
4585
4586 fn render_run_indicator(
4587 &self,
4588 _style: &EditorStyle,
4589 is_active: bool,
4590 row: DisplayRow,
4591 cx: &mut ViewContext<Self>,
4592 ) -> IconButton {
4593 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4594 .icon_size(IconSize::XSmall)
4595 .size(ui::ButtonSize::None)
4596 .icon_color(Color::Muted)
4597 .selected(is_active)
4598 .on_click(cx.listener(move |editor, _e, cx| {
4599 editor.focus(cx);
4600 editor.toggle_code_actions(
4601 &ToggleCodeActions {
4602 deployed_from_indicator: Some(row),
4603 },
4604 cx,
4605 );
4606 }))
4607 }
4608
4609 pub fn render_fold_indicators(
4610 &mut self,
4611 fold_data: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
4612 _style: &EditorStyle,
4613 gutter_hovered: bool,
4614 _line_height: Pixels,
4615 _gutter_margin: Pixels,
4616 cx: &mut ViewContext<Self>,
4617 ) -> Vec<Option<AnyElement>> {
4618 fold_data
4619 .iter()
4620 .enumerate()
4621 .map(|(ix, fold_data)| {
4622 fold_data
4623 .map(|(fold_status, buffer_row, active)| {
4624 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4625 IconButton::new(ix, ui::IconName::ChevronDown)
4626 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4627 FoldStatus::Folded => {
4628 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4629 }
4630 FoldStatus::Foldable => {
4631 this.fold_at(&FoldAt { buffer_row }, cx);
4632 }
4633 }))
4634 .icon_color(ui::Color::Muted)
4635 .icon_size(ui::IconSize::Small)
4636 .selected(fold_status == FoldStatus::Folded)
4637 .selected_icon(ui::IconName::ChevronRight)
4638 .size(ui::ButtonSize::None)
4639 .into_any_element()
4640 })
4641 })
4642 .flatten()
4643 })
4644 .collect()
4645 }
4646
4647 pub fn context_menu_visible(&self) -> bool {
4648 self.context_menu
4649 .read()
4650 .as_ref()
4651 .map_or(false, |menu| menu.visible())
4652 }
4653
4654 fn render_context_menu(
4655 &self,
4656 cursor_position: DisplayPoint,
4657 style: &EditorStyle,
4658 max_height: Pixels,
4659 cx: &mut ViewContext<Editor>,
4660 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4661 self.context_menu.read().as_ref().map(|menu| {
4662 menu.render(
4663 cursor_position,
4664 style,
4665 max_height,
4666 self.workspace.as_ref().map(|(w, _)| w.clone()),
4667 cx,
4668 )
4669 })
4670 }
4671
4672 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4673 cx.notify();
4674 self.completion_tasks.clear();
4675 let context_menu = self.context_menu.write().take();
4676 if context_menu.is_some() {
4677 self.update_visible_inline_completion(cx);
4678 }
4679 context_menu
4680 }
4681
4682 pub fn insert_snippet(
4683 &mut self,
4684 insertion_ranges: &[Range<usize>],
4685 snippet: Snippet,
4686 cx: &mut ViewContext<Self>,
4687 ) -> Result<()> {
4688 struct Tabstop<T> {
4689 is_end_tabstop: bool,
4690 ranges: Vec<Range<T>>,
4691 }
4692
4693 let tabstops = self.buffer.update(cx, |buffer, cx| {
4694 let snippet_text: Arc<str> = snippet.text.clone().into();
4695 buffer.edit(
4696 insertion_ranges
4697 .iter()
4698 .cloned()
4699 .map(|range| (range, snippet_text.clone())),
4700 Some(AutoindentMode::EachLine),
4701 cx,
4702 );
4703
4704 let snapshot = &*buffer.read(cx);
4705 let snippet = &snippet;
4706 snippet
4707 .tabstops
4708 .iter()
4709 .map(|tabstop| {
4710 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4711 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4712 });
4713 let mut tabstop_ranges = tabstop
4714 .iter()
4715 .flat_map(|tabstop_range| {
4716 let mut delta = 0_isize;
4717 insertion_ranges.iter().map(move |insertion_range| {
4718 let insertion_start = insertion_range.start as isize + delta;
4719 delta +=
4720 snippet.text.len() as isize - insertion_range.len() as isize;
4721
4722 let start = ((insertion_start + tabstop_range.start) as usize)
4723 .min(snapshot.len());
4724 let end = ((insertion_start + tabstop_range.end) as usize)
4725 .min(snapshot.len());
4726 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4727 })
4728 })
4729 .collect::<Vec<_>>();
4730 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4731
4732 Tabstop {
4733 is_end_tabstop,
4734 ranges: tabstop_ranges,
4735 }
4736 })
4737 .collect::<Vec<_>>()
4738 });
4739
4740 if let Some(tabstop) = tabstops.first() {
4741 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4742 s.select_ranges(tabstop.ranges.iter().cloned());
4743 });
4744
4745 // If we're already at the last tabstop and it's at the end of the snippet,
4746 // we're done, we don't need to keep the state around.
4747 if !tabstop.is_end_tabstop {
4748 let ranges = tabstops
4749 .into_iter()
4750 .map(|tabstop| tabstop.ranges)
4751 .collect::<Vec<_>>();
4752 self.snippet_stack.push(SnippetState {
4753 active_index: 0,
4754 ranges,
4755 });
4756 }
4757
4758 // Check whether the just-entered snippet ends with an auto-closable bracket.
4759 if self.autoclose_regions.is_empty() {
4760 let snapshot = self.buffer.read(cx).snapshot(cx);
4761 for selection in &mut self.selections.all::<Point>(cx) {
4762 let selection_head = selection.head();
4763 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4764 continue;
4765 };
4766
4767 let mut bracket_pair = None;
4768 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4769 let prev_chars = snapshot
4770 .reversed_chars_at(selection_head)
4771 .collect::<String>();
4772 for (pair, enabled) in scope.brackets() {
4773 if enabled
4774 && pair.close
4775 && prev_chars.starts_with(pair.start.as_str())
4776 && next_chars.starts_with(pair.end.as_str())
4777 {
4778 bracket_pair = Some(pair.clone());
4779 break;
4780 }
4781 }
4782 if let Some(pair) = bracket_pair {
4783 let start = snapshot.anchor_after(selection_head);
4784 let end = snapshot.anchor_after(selection_head);
4785 self.autoclose_regions.push(AutocloseRegion {
4786 selection_id: selection.id,
4787 range: start..end,
4788 pair,
4789 });
4790 }
4791 }
4792 }
4793 }
4794 Ok(())
4795 }
4796
4797 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4798 self.move_to_snippet_tabstop(Bias::Right, cx)
4799 }
4800
4801 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4802 self.move_to_snippet_tabstop(Bias::Left, cx)
4803 }
4804
4805 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4806 if let Some(mut snippet) = self.snippet_stack.pop() {
4807 match bias {
4808 Bias::Left => {
4809 if snippet.active_index > 0 {
4810 snippet.active_index -= 1;
4811 } else {
4812 self.snippet_stack.push(snippet);
4813 return false;
4814 }
4815 }
4816 Bias::Right => {
4817 if snippet.active_index + 1 < snippet.ranges.len() {
4818 snippet.active_index += 1;
4819 } else {
4820 self.snippet_stack.push(snippet);
4821 return false;
4822 }
4823 }
4824 }
4825 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4826 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4827 s.select_anchor_ranges(current_ranges.iter().cloned())
4828 });
4829 // If snippet state is not at the last tabstop, push it back on the stack
4830 if snippet.active_index + 1 < snippet.ranges.len() {
4831 self.snippet_stack.push(snippet);
4832 }
4833 return true;
4834 }
4835 }
4836
4837 false
4838 }
4839
4840 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4841 self.transact(cx, |this, cx| {
4842 this.select_all(&SelectAll, cx);
4843 this.insert("", cx);
4844 });
4845 }
4846
4847 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4848 self.transact(cx, |this, cx| {
4849 this.select_autoclose_pair(cx);
4850 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4851 if !this.selections.line_mode {
4852 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4853 for selection in &mut selections {
4854 if selection.is_empty() {
4855 let old_head = selection.head();
4856 let mut new_head =
4857 movement::left(&display_map, old_head.to_display_point(&display_map))
4858 .to_point(&display_map);
4859 if let Some((buffer, line_buffer_range)) = display_map
4860 .buffer_snapshot
4861 .buffer_line_for_row(MultiBufferRow(old_head.row))
4862 {
4863 let indent_size =
4864 buffer.indent_size_for_line(line_buffer_range.start.row);
4865 let indent_len = match indent_size.kind {
4866 IndentKind::Space => {
4867 buffer.settings_at(line_buffer_range.start, cx).tab_size
4868 }
4869 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4870 };
4871 if old_head.column <= indent_size.len && old_head.column > 0 {
4872 let indent_len = indent_len.get();
4873 new_head = cmp::min(
4874 new_head,
4875 MultiBufferPoint::new(
4876 old_head.row,
4877 ((old_head.column - 1) / indent_len) * indent_len,
4878 ),
4879 );
4880 }
4881 }
4882
4883 selection.set_head(new_head, SelectionGoal::None);
4884 }
4885 }
4886 }
4887
4888 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4889 this.insert("", cx);
4890 this.refresh_inline_completion(true, cx);
4891 });
4892 }
4893
4894 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4895 self.transact(cx, |this, cx| {
4896 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4897 let line_mode = s.line_mode;
4898 s.move_with(|map, selection| {
4899 if selection.is_empty() && !line_mode {
4900 let cursor = movement::right(map, selection.head());
4901 selection.end = cursor;
4902 selection.reversed = true;
4903 selection.goal = SelectionGoal::None;
4904 }
4905 })
4906 });
4907 this.insert("", cx);
4908 this.refresh_inline_completion(true, cx);
4909 });
4910 }
4911
4912 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4913 if self.move_to_prev_snippet_tabstop(cx) {
4914 return;
4915 }
4916
4917 self.outdent(&Outdent, cx);
4918 }
4919
4920 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4921 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4922 return;
4923 }
4924
4925 let mut selections = self.selections.all_adjusted(cx);
4926 let buffer = self.buffer.read(cx);
4927 let snapshot = buffer.snapshot(cx);
4928 let rows_iter = selections.iter().map(|s| s.head().row);
4929 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4930
4931 let mut edits = Vec::new();
4932 let mut prev_edited_row = 0;
4933 let mut row_delta = 0;
4934 for selection in &mut selections {
4935 if selection.start.row != prev_edited_row {
4936 row_delta = 0;
4937 }
4938 prev_edited_row = selection.end.row;
4939
4940 // If the selection is non-empty, then increase the indentation of the selected lines.
4941 if !selection.is_empty() {
4942 row_delta =
4943 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4944 continue;
4945 }
4946
4947 // If the selection is empty and the cursor is in the leading whitespace before the
4948 // suggested indentation, then auto-indent the line.
4949 let cursor = selection.head();
4950 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4951 if let Some(suggested_indent) =
4952 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4953 {
4954 if cursor.column < suggested_indent.len
4955 && cursor.column <= current_indent.len
4956 && current_indent.len <= suggested_indent.len
4957 {
4958 selection.start = Point::new(cursor.row, suggested_indent.len);
4959 selection.end = selection.start;
4960 if row_delta == 0 {
4961 edits.extend(Buffer::edit_for_indent_size_adjustment(
4962 cursor.row,
4963 current_indent,
4964 suggested_indent,
4965 ));
4966 row_delta = suggested_indent.len - current_indent.len;
4967 }
4968 continue;
4969 }
4970 }
4971
4972 // Accept copilot completion if there is only one selection and the cursor is not
4973 // in the leading whitespace.
4974 if self.selections.count() == 1
4975 && cursor.column >= current_indent.len
4976 && self.has_active_inline_completion(cx)
4977 {
4978 self.accept_inline_completion(cx);
4979 return;
4980 }
4981
4982 // Otherwise, insert a hard or soft tab.
4983 let settings = buffer.settings_at(cursor, cx);
4984 let tab_size = if settings.hard_tabs {
4985 IndentSize::tab()
4986 } else {
4987 let tab_size = settings.tab_size.get();
4988 let char_column = snapshot
4989 .text_for_range(Point::new(cursor.row, 0)..cursor)
4990 .flat_map(str::chars)
4991 .count()
4992 + row_delta as usize;
4993 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4994 IndentSize::spaces(chars_to_next_tab_stop)
4995 };
4996 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4997 selection.end = selection.start;
4998 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4999 row_delta += tab_size.len;
5000 }
5001
5002 self.transact(cx, |this, cx| {
5003 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5004 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5005 this.refresh_inline_completion(true, cx);
5006 });
5007 }
5008
5009 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5010 if self.read_only(cx) {
5011 return;
5012 }
5013 let mut selections = self.selections.all::<Point>(cx);
5014 let mut prev_edited_row = 0;
5015 let mut row_delta = 0;
5016 let mut edits = Vec::new();
5017 let buffer = self.buffer.read(cx);
5018 let snapshot = buffer.snapshot(cx);
5019 for selection in &mut selections {
5020 if selection.start.row != prev_edited_row {
5021 row_delta = 0;
5022 }
5023 prev_edited_row = selection.end.row;
5024
5025 row_delta =
5026 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5027 }
5028
5029 self.transact(cx, |this, cx| {
5030 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5031 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5032 });
5033 }
5034
5035 fn indent_selection(
5036 buffer: &MultiBuffer,
5037 snapshot: &MultiBufferSnapshot,
5038 selection: &mut Selection<Point>,
5039 edits: &mut Vec<(Range<Point>, String)>,
5040 delta_for_start_row: u32,
5041 cx: &AppContext,
5042 ) -> u32 {
5043 let settings = buffer.settings_at(selection.start, cx);
5044 let tab_size = settings.tab_size.get();
5045 let indent_kind = if settings.hard_tabs {
5046 IndentKind::Tab
5047 } else {
5048 IndentKind::Space
5049 };
5050 let mut start_row = selection.start.row;
5051 let mut end_row = selection.end.row + 1;
5052
5053 // If a selection ends at the beginning of a line, don't indent
5054 // that last line.
5055 if selection.end.column == 0 && selection.end.row > selection.start.row {
5056 end_row -= 1;
5057 }
5058
5059 // Avoid re-indenting a row that has already been indented by a
5060 // previous selection, but still update this selection's column
5061 // to reflect that indentation.
5062 if delta_for_start_row > 0 {
5063 start_row += 1;
5064 selection.start.column += delta_for_start_row;
5065 if selection.end.row == selection.start.row {
5066 selection.end.column += delta_for_start_row;
5067 }
5068 }
5069
5070 let mut delta_for_end_row = 0;
5071 let has_multiple_rows = start_row + 1 != end_row;
5072 for row in start_row..end_row {
5073 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5074 let indent_delta = match (current_indent.kind, indent_kind) {
5075 (IndentKind::Space, IndentKind::Space) => {
5076 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5077 IndentSize::spaces(columns_to_next_tab_stop)
5078 }
5079 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5080 (_, IndentKind::Tab) => IndentSize::tab(),
5081 };
5082
5083 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5084 0
5085 } else {
5086 selection.start.column
5087 };
5088 let row_start = Point::new(row, start);
5089 edits.push((
5090 row_start..row_start,
5091 indent_delta.chars().collect::<String>(),
5092 ));
5093
5094 // Update this selection's endpoints to reflect the indentation.
5095 if row == selection.start.row {
5096 selection.start.column += indent_delta.len;
5097 }
5098 if row == selection.end.row {
5099 selection.end.column += indent_delta.len;
5100 delta_for_end_row = indent_delta.len;
5101 }
5102 }
5103
5104 if selection.start.row == selection.end.row {
5105 delta_for_start_row + delta_for_end_row
5106 } else {
5107 delta_for_end_row
5108 }
5109 }
5110
5111 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5112 if self.read_only(cx) {
5113 return;
5114 }
5115 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5116 let selections = self.selections.all::<Point>(cx);
5117 let mut deletion_ranges = Vec::new();
5118 let mut last_outdent = None;
5119 {
5120 let buffer = self.buffer.read(cx);
5121 let snapshot = buffer.snapshot(cx);
5122 for selection in &selections {
5123 let settings = buffer.settings_at(selection.start, cx);
5124 let tab_size = settings.tab_size.get();
5125 let mut rows = selection.spanned_rows(false, &display_map);
5126
5127 // Avoid re-outdenting a row that has already been outdented by a
5128 // previous selection.
5129 if let Some(last_row) = last_outdent {
5130 if last_row == rows.start {
5131 rows.start = rows.start.next_row();
5132 }
5133 }
5134 let has_multiple_rows = rows.len() > 1;
5135 for row in rows.iter_rows() {
5136 let indent_size = snapshot.indent_size_for_line(row);
5137 if indent_size.len > 0 {
5138 let deletion_len = match indent_size.kind {
5139 IndentKind::Space => {
5140 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5141 if columns_to_prev_tab_stop == 0 {
5142 tab_size
5143 } else {
5144 columns_to_prev_tab_stop
5145 }
5146 }
5147 IndentKind::Tab => 1,
5148 };
5149 let start = if has_multiple_rows
5150 || deletion_len > selection.start.column
5151 || indent_size.len < selection.start.column
5152 {
5153 0
5154 } else {
5155 selection.start.column - deletion_len
5156 };
5157 deletion_ranges.push(
5158 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5159 );
5160 last_outdent = Some(row);
5161 }
5162 }
5163 }
5164 }
5165
5166 self.transact(cx, |this, cx| {
5167 this.buffer.update(cx, |buffer, cx| {
5168 let empty_str: Arc<str> = "".into();
5169 buffer.edit(
5170 deletion_ranges
5171 .into_iter()
5172 .map(|range| (range, empty_str.clone())),
5173 None,
5174 cx,
5175 );
5176 });
5177 let selections = this.selections.all::<usize>(cx);
5178 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5179 });
5180 }
5181
5182 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5183 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5184 let selections = self.selections.all::<Point>(cx);
5185
5186 let mut new_cursors = Vec::new();
5187 let mut edit_ranges = Vec::new();
5188 let mut selections = selections.iter().peekable();
5189 while let Some(selection) = selections.next() {
5190 let mut rows = selection.spanned_rows(false, &display_map);
5191 let goal_display_column = selection.head().to_display_point(&display_map).column();
5192
5193 // Accumulate contiguous regions of rows that we want to delete.
5194 while let Some(next_selection) = selections.peek() {
5195 let next_rows = next_selection.spanned_rows(false, &display_map);
5196 if next_rows.start <= rows.end {
5197 rows.end = next_rows.end;
5198 selections.next().unwrap();
5199 } else {
5200 break;
5201 }
5202 }
5203
5204 let buffer = &display_map.buffer_snapshot;
5205 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5206 let edit_end;
5207 let cursor_buffer_row;
5208 if buffer.max_point().row >= rows.end.0 {
5209 // If there's a line after the range, delete the \n from the end of the row range
5210 // and position the cursor on the next line.
5211 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5212 cursor_buffer_row = rows.end;
5213 } else {
5214 // If there isn't a line after the range, delete the \n from the line before the
5215 // start of the row range and position the cursor there.
5216 edit_start = edit_start.saturating_sub(1);
5217 edit_end = buffer.len();
5218 cursor_buffer_row = rows.start.previous_row();
5219 }
5220
5221 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5222 *cursor.column_mut() =
5223 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5224
5225 new_cursors.push((
5226 selection.id,
5227 buffer.anchor_after(cursor.to_point(&display_map)),
5228 ));
5229 edit_ranges.push(edit_start..edit_end);
5230 }
5231
5232 self.transact(cx, |this, cx| {
5233 let buffer = this.buffer.update(cx, |buffer, cx| {
5234 let empty_str: Arc<str> = "".into();
5235 buffer.edit(
5236 edit_ranges
5237 .into_iter()
5238 .map(|range| (range, empty_str.clone())),
5239 None,
5240 cx,
5241 );
5242 buffer.snapshot(cx)
5243 });
5244 let new_selections = new_cursors
5245 .into_iter()
5246 .map(|(id, cursor)| {
5247 let cursor = cursor.to_point(&buffer);
5248 Selection {
5249 id,
5250 start: cursor,
5251 end: cursor,
5252 reversed: false,
5253 goal: SelectionGoal::None,
5254 }
5255 })
5256 .collect();
5257
5258 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5259 s.select(new_selections);
5260 });
5261 });
5262 }
5263
5264 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5265 if self.read_only(cx) {
5266 return;
5267 }
5268 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5269 for selection in self.selections.all::<Point>(cx) {
5270 let start = MultiBufferRow(selection.start.row);
5271 let end = if selection.start.row == selection.end.row {
5272 MultiBufferRow(selection.start.row + 1)
5273 } else {
5274 MultiBufferRow(selection.end.row)
5275 };
5276
5277 if let Some(last_row_range) = row_ranges.last_mut() {
5278 if start <= last_row_range.end {
5279 last_row_range.end = end;
5280 continue;
5281 }
5282 }
5283 row_ranges.push(start..end);
5284 }
5285
5286 let snapshot = self.buffer.read(cx).snapshot(cx);
5287 let mut cursor_positions = Vec::new();
5288 for row_range in &row_ranges {
5289 let anchor = snapshot.anchor_before(Point::new(
5290 row_range.end.previous_row().0,
5291 snapshot.line_len(row_range.end.previous_row()),
5292 ));
5293 cursor_positions.push(anchor..anchor);
5294 }
5295
5296 self.transact(cx, |this, cx| {
5297 for row_range in row_ranges.into_iter().rev() {
5298 for row in row_range.iter_rows().rev() {
5299 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5300 let next_line_row = row.next_row();
5301 let indent = snapshot.indent_size_for_line(next_line_row);
5302 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5303
5304 let replace = if snapshot.line_len(next_line_row) > indent.len {
5305 " "
5306 } else {
5307 ""
5308 };
5309
5310 this.buffer.update(cx, |buffer, cx| {
5311 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5312 });
5313 }
5314 }
5315
5316 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5317 s.select_anchor_ranges(cursor_positions)
5318 });
5319 });
5320 }
5321
5322 pub fn sort_lines_case_sensitive(
5323 &mut self,
5324 _: &SortLinesCaseSensitive,
5325 cx: &mut ViewContext<Self>,
5326 ) {
5327 self.manipulate_lines(cx, |lines| lines.sort())
5328 }
5329
5330 pub fn sort_lines_case_insensitive(
5331 &mut self,
5332 _: &SortLinesCaseInsensitive,
5333 cx: &mut ViewContext<Self>,
5334 ) {
5335 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5336 }
5337
5338 pub fn unique_lines_case_insensitive(
5339 &mut self,
5340 _: &UniqueLinesCaseInsensitive,
5341 cx: &mut ViewContext<Self>,
5342 ) {
5343 self.manipulate_lines(cx, |lines| {
5344 let mut seen = HashSet::default();
5345 lines.retain(|line| seen.insert(line.to_lowercase()));
5346 })
5347 }
5348
5349 pub fn unique_lines_case_sensitive(
5350 &mut self,
5351 _: &UniqueLinesCaseSensitive,
5352 cx: &mut ViewContext<Self>,
5353 ) {
5354 self.manipulate_lines(cx, |lines| {
5355 let mut seen = HashSet::default();
5356 lines.retain(|line| seen.insert(*line));
5357 })
5358 }
5359
5360 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5361 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5362 if !revert_changes.is_empty() {
5363 self.transact(cx, |editor, cx| {
5364 editor.buffer().update(cx, |multi_buffer, cx| {
5365 for (buffer_id, changes) in revert_changes {
5366 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5367 buffer.update(cx, |buffer, cx| {
5368 buffer.edit(
5369 changes.into_iter().map(|(range, text)| {
5370 (range, text.to_string().map(Arc::<str>::from))
5371 }),
5372 None,
5373 cx,
5374 );
5375 });
5376 }
5377 }
5378 });
5379 editor.change_selections(None, cx, |selections| selections.refresh());
5380 });
5381 }
5382 }
5383
5384 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5385 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5386 let project_path = buffer.read(cx).project_path(cx)?;
5387 let project = self.project.as_ref()?.read(cx);
5388 let entry = project.entry_for_path(&project_path, cx)?;
5389 let abs_path = project.absolute_path(&project_path, cx)?;
5390 let parent = if entry.is_symlink {
5391 abs_path.canonicalize().ok()?
5392 } else {
5393 abs_path
5394 }
5395 .parent()?
5396 .to_path_buf();
5397 Some(parent)
5398 }) {
5399 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5400 }
5401 }
5402
5403 fn gather_revert_changes(
5404 &mut self,
5405 selections: &[Selection<Anchor>],
5406 cx: &mut ViewContext<'_, Editor>,
5407 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5408 let mut revert_changes = HashMap::default();
5409 self.buffer.update(cx, |multi_buffer, cx| {
5410 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5411 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5412 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5413 }
5414 });
5415 revert_changes
5416 }
5417
5418 fn prepare_revert_change(
5419 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5420 multi_buffer: &MultiBuffer,
5421 hunk: &DiffHunk<MultiBufferRow>,
5422 cx: &mut AppContext,
5423 ) -> Option<()> {
5424 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5425 let buffer = buffer.read(cx);
5426 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5427 let buffer_snapshot = buffer.snapshot();
5428 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5429 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5430 probe
5431 .0
5432 .start
5433 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5434 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5435 }) {
5436 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5437 Some(())
5438 } else {
5439 None
5440 }
5441 }
5442
5443 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5444 self.manipulate_lines(cx, |lines| lines.reverse())
5445 }
5446
5447 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5448 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5449 }
5450
5451 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5452 where
5453 Fn: FnMut(&mut Vec<&str>),
5454 {
5455 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5456 let buffer = self.buffer.read(cx).snapshot(cx);
5457
5458 let mut edits = Vec::new();
5459
5460 let selections = self.selections.all::<Point>(cx);
5461 let mut selections = selections.iter().peekable();
5462 let mut contiguous_row_selections = Vec::new();
5463 let mut new_selections = Vec::new();
5464 let mut added_lines = 0;
5465 let mut removed_lines = 0;
5466
5467 while let Some(selection) = selections.next() {
5468 let (start_row, end_row) = consume_contiguous_rows(
5469 &mut contiguous_row_selections,
5470 selection,
5471 &display_map,
5472 &mut selections,
5473 );
5474
5475 let start_point = Point::new(start_row.0, 0);
5476 let end_point = Point::new(
5477 end_row.previous_row().0,
5478 buffer.line_len(end_row.previous_row()),
5479 );
5480 let text = buffer
5481 .text_for_range(start_point..end_point)
5482 .collect::<String>();
5483
5484 let mut lines = text.split('\n').collect_vec();
5485
5486 let lines_before = lines.len();
5487 callback(&mut lines);
5488 let lines_after = lines.len();
5489
5490 edits.push((start_point..end_point, lines.join("\n")));
5491
5492 // Selections must change based on added and removed line count
5493 let start_row =
5494 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5495 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5496 new_selections.push(Selection {
5497 id: selection.id,
5498 start: start_row,
5499 end: end_row,
5500 goal: SelectionGoal::None,
5501 reversed: selection.reversed,
5502 });
5503
5504 if lines_after > lines_before {
5505 added_lines += lines_after - lines_before;
5506 } else if lines_before > lines_after {
5507 removed_lines += lines_before - lines_after;
5508 }
5509 }
5510
5511 self.transact(cx, |this, cx| {
5512 let buffer = this.buffer.update(cx, |buffer, cx| {
5513 buffer.edit(edits, None, cx);
5514 buffer.snapshot(cx)
5515 });
5516
5517 // Recalculate offsets on newly edited buffer
5518 let new_selections = new_selections
5519 .iter()
5520 .map(|s| {
5521 let start_point = Point::new(s.start.0, 0);
5522 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5523 Selection {
5524 id: s.id,
5525 start: buffer.point_to_offset(start_point),
5526 end: buffer.point_to_offset(end_point),
5527 goal: s.goal,
5528 reversed: s.reversed,
5529 }
5530 })
5531 .collect();
5532
5533 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5534 s.select(new_selections);
5535 });
5536
5537 this.request_autoscroll(Autoscroll::fit(), cx);
5538 });
5539 }
5540
5541 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5542 self.manipulate_text(cx, |text| text.to_uppercase())
5543 }
5544
5545 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5546 self.manipulate_text(cx, |text| text.to_lowercase())
5547 }
5548
5549 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5550 self.manipulate_text(cx, |text| {
5551 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5552 // https://github.com/rutrum/convert-case/issues/16
5553 text.split('\n')
5554 .map(|line| line.to_case(Case::Title))
5555 .join("\n")
5556 })
5557 }
5558
5559 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5560 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5561 }
5562
5563 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5564 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5565 }
5566
5567 pub fn convert_to_upper_camel_case(
5568 &mut self,
5569 _: &ConvertToUpperCamelCase,
5570 cx: &mut ViewContext<Self>,
5571 ) {
5572 self.manipulate_text(cx, |text| {
5573 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5574 // https://github.com/rutrum/convert-case/issues/16
5575 text.split('\n')
5576 .map(|line| line.to_case(Case::UpperCamel))
5577 .join("\n")
5578 })
5579 }
5580
5581 pub fn convert_to_lower_camel_case(
5582 &mut self,
5583 _: &ConvertToLowerCamelCase,
5584 cx: &mut ViewContext<Self>,
5585 ) {
5586 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5587 }
5588
5589 pub fn convert_to_opposite_case(
5590 &mut self,
5591 _: &ConvertToOppositeCase,
5592 cx: &mut ViewContext<Self>,
5593 ) {
5594 self.manipulate_text(cx, |text| {
5595 text.chars()
5596 .fold(String::with_capacity(text.len()), |mut t, c| {
5597 if c.is_uppercase() {
5598 t.extend(c.to_lowercase());
5599 } else {
5600 t.extend(c.to_uppercase());
5601 }
5602 t
5603 })
5604 })
5605 }
5606
5607 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5608 where
5609 Fn: FnMut(&str) -> String,
5610 {
5611 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5612 let buffer = self.buffer.read(cx).snapshot(cx);
5613
5614 let mut new_selections = Vec::new();
5615 let mut edits = Vec::new();
5616 let mut selection_adjustment = 0i32;
5617
5618 for selection in self.selections.all::<usize>(cx) {
5619 let selection_is_empty = selection.is_empty();
5620
5621 let (start, end) = if selection_is_empty {
5622 let word_range = movement::surrounding_word(
5623 &display_map,
5624 selection.start.to_display_point(&display_map),
5625 );
5626 let start = word_range.start.to_offset(&display_map, Bias::Left);
5627 let end = word_range.end.to_offset(&display_map, Bias::Left);
5628 (start, end)
5629 } else {
5630 (selection.start, selection.end)
5631 };
5632
5633 let text = buffer.text_for_range(start..end).collect::<String>();
5634 let old_length = text.len() as i32;
5635 let text = callback(&text);
5636
5637 new_selections.push(Selection {
5638 start: (start as i32 - selection_adjustment) as usize,
5639 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5640 goal: SelectionGoal::None,
5641 ..selection
5642 });
5643
5644 selection_adjustment += old_length - text.len() as i32;
5645
5646 edits.push((start..end, text));
5647 }
5648
5649 self.transact(cx, |this, cx| {
5650 this.buffer.update(cx, |buffer, cx| {
5651 buffer.edit(edits, None, cx);
5652 });
5653
5654 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5655 s.select(new_selections);
5656 });
5657
5658 this.request_autoscroll(Autoscroll::fit(), cx);
5659 });
5660 }
5661
5662 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5663 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5664 let buffer = &display_map.buffer_snapshot;
5665 let selections = self.selections.all::<Point>(cx);
5666
5667 let mut edits = Vec::new();
5668 let mut selections_iter = selections.iter().peekable();
5669 while let Some(selection) = selections_iter.next() {
5670 // Avoid duplicating the same lines twice.
5671 let mut rows = selection.spanned_rows(false, &display_map);
5672
5673 while let Some(next_selection) = selections_iter.peek() {
5674 let next_rows = next_selection.spanned_rows(false, &display_map);
5675 if next_rows.start < rows.end {
5676 rows.end = next_rows.end;
5677 selections_iter.next().unwrap();
5678 } else {
5679 break;
5680 }
5681 }
5682
5683 // Copy the text from the selected row region and splice it either at the start
5684 // or end of the region.
5685 let start = Point::new(rows.start.0, 0);
5686 let end = Point::new(
5687 rows.end.previous_row().0,
5688 buffer.line_len(rows.end.previous_row()),
5689 );
5690 let text = buffer
5691 .text_for_range(start..end)
5692 .chain(Some("\n"))
5693 .collect::<String>();
5694 let insert_location = if upwards {
5695 Point::new(rows.end.0, 0)
5696 } else {
5697 start
5698 };
5699 edits.push((insert_location..insert_location, text));
5700 }
5701
5702 self.transact(cx, |this, cx| {
5703 this.buffer.update(cx, |buffer, cx| {
5704 buffer.edit(edits, None, cx);
5705 });
5706
5707 this.request_autoscroll(Autoscroll::fit(), cx);
5708 });
5709 }
5710
5711 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5712 self.duplicate_line(true, cx);
5713 }
5714
5715 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5716 self.duplicate_line(false, cx);
5717 }
5718
5719 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5720 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5721 let buffer = self.buffer.read(cx).snapshot(cx);
5722
5723 let mut edits = Vec::new();
5724 let mut unfold_ranges = Vec::new();
5725 let mut refold_ranges = Vec::new();
5726
5727 let selections = self.selections.all::<Point>(cx);
5728 let mut selections = selections.iter().peekable();
5729 let mut contiguous_row_selections = Vec::new();
5730 let mut new_selections = Vec::new();
5731
5732 while let Some(selection) = selections.next() {
5733 // Find all the selections that span a contiguous row range
5734 let (start_row, end_row) = consume_contiguous_rows(
5735 &mut contiguous_row_selections,
5736 selection,
5737 &display_map,
5738 &mut selections,
5739 );
5740
5741 // Move the text spanned by the row range to be before the line preceding the row range
5742 if start_row.0 > 0 {
5743 let range_to_move = Point::new(
5744 start_row.previous_row().0,
5745 buffer.line_len(start_row.previous_row()),
5746 )
5747 ..Point::new(
5748 end_row.previous_row().0,
5749 buffer.line_len(end_row.previous_row()),
5750 );
5751 let insertion_point = display_map
5752 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5753 .0;
5754
5755 // Don't move lines across excerpts
5756 if buffer
5757 .excerpt_boundaries_in_range((
5758 Bound::Excluded(insertion_point),
5759 Bound::Included(range_to_move.end),
5760 ))
5761 .next()
5762 .is_none()
5763 {
5764 let text = buffer
5765 .text_for_range(range_to_move.clone())
5766 .flat_map(|s| s.chars())
5767 .skip(1)
5768 .chain(['\n'])
5769 .collect::<String>();
5770
5771 edits.push((
5772 buffer.anchor_after(range_to_move.start)
5773 ..buffer.anchor_before(range_to_move.end),
5774 String::new(),
5775 ));
5776 let insertion_anchor = buffer.anchor_after(insertion_point);
5777 edits.push((insertion_anchor..insertion_anchor, text));
5778
5779 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5780
5781 // Move selections up
5782 new_selections.extend(contiguous_row_selections.drain(..).map(
5783 |mut selection| {
5784 selection.start.row -= row_delta;
5785 selection.end.row -= row_delta;
5786 selection
5787 },
5788 ));
5789
5790 // Move folds up
5791 unfold_ranges.push(range_to_move.clone());
5792 for fold in display_map.folds_in_range(
5793 buffer.anchor_before(range_to_move.start)
5794 ..buffer.anchor_after(range_to_move.end),
5795 ) {
5796 let mut start = fold.range.start.to_point(&buffer);
5797 let mut end = fold.range.end.to_point(&buffer);
5798 start.row -= row_delta;
5799 end.row -= row_delta;
5800 refold_ranges.push(start..end);
5801 }
5802 }
5803 }
5804
5805 // If we didn't move line(s), preserve the existing selections
5806 new_selections.append(&mut contiguous_row_selections);
5807 }
5808
5809 self.transact(cx, |this, cx| {
5810 this.unfold_ranges(unfold_ranges, true, true, cx);
5811 this.buffer.update(cx, |buffer, cx| {
5812 for (range, text) in edits {
5813 buffer.edit([(range, text)], None, cx);
5814 }
5815 });
5816 this.fold_ranges(refold_ranges, true, cx);
5817 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5818 s.select(new_selections);
5819 })
5820 });
5821 }
5822
5823 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5824 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5825 let buffer = self.buffer.read(cx).snapshot(cx);
5826
5827 let mut edits = Vec::new();
5828 let mut unfold_ranges = Vec::new();
5829 let mut refold_ranges = Vec::new();
5830
5831 let selections = self.selections.all::<Point>(cx);
5832 let mut selections = selections.iter().peekable();
5833 let mut contiguous_row_selections = Vec::new();
5834 let mut new_selections = Vec::new();
5835
5836 while let Some(selection) = selections.next() {
5837 // Find all the selections that span a contiguous row range
5838 let (start_row, end_row) = consume_contiguous_rows(
5839 &mut contiguous_row_selections,
5840 selection,
5841 &display_map,
5842 &mut selections,
5843 );
5844
5845 // Move the text spanned by the row range to be after the last line of the row range
5846 if end_row.0 <= buffer.max_point().row {
5847 let range_to_move =
5848 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5849 let insertion_point = display_map
5850 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5851 .0;
5852
5853 // Don't move lines across excerpt boundaries
5854 if buffer
5855 .excerpt_boundaries_in_range((
5856 Bound::Excluded(range_to_move.start),
5857 Bound::Included(insertion_point),
5858 ))
5859 .next()
5860 .is_none()
5861 {
5862 let mut text = String::from("\n");
5863 text.extend(buffer.text_for_range(range_to_move.clone()));
5864 text.pop(); // Drop trailing newline
5865 edits.push((
5866 buffer.anchor_after(range_to_move.start)
5867 ..buffer.anchor_before(range_to_move.end),
5868 String::new(),
5869 ));
5870 let insertion_anchor = buffer.anchor_after(insertion_point);
5871 edits.push((insertion_anchor..insertion_anchor, text));
5872
5873 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5874
5875 // Move selections down
5876 new_selections.extend(contiguous_row_selections.drain(..).map(
5877 |mut selection| {
5878 selection.start.row += row_delta;
5879 selection.end.row += row_delta;
5880 selection
5881 },
5882 ));
5883
5884 // Move folds down
5885 unfold_ranges.push(range_to_move.clone());
5886 for fold in display_map.folds_in_range(
5887 buffer.anchor_before(range_to_move.start)
5888 ..buffer.anchor_after(range_to_move.end),
5889 ) {
5890 let mut start = fold.range.start.to_point(&buffer);
5891 let mut end = fold.range.end.to_point(&buffer);
5892 start.row += row_delta;
5893 end.row += row_delta;
5894 refold_ranges.push(start..end);
5895 }
5896 }
5897 }
5898
5899 // If we didn't move line(s), preserve the existing selections
5900 new_selections.append(&mut contiguous_row_selections);
5901 }
5902
5903 self.transact(cx, |this, cx| {
5904 this.unfold_ranges(unfold_ranges, true, true, cx);
5905 this.buffer.update(cx, |buffer, cx| {
5906 for (range, text) in edits {
5907 buffer.edit([(range, text)], None, cx);
5908 }
5909 });
5910 this.fold_ranges(refold_ranges, true, cx);
5911 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5912 });
5913 }
5914
5915 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5916 let text_layout_details = &self.text_layout_details(cx);
5917 self.transact(cx, |this, cx| {
5918 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5919 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5920 let line_mode = s.line_mode;
5921 s.move_with(|display_map, selection| {
5922 if !selection.is_empty() || line_mode {
5923 return;
5924 }
5925
5926 let mut head = selection.head();
5927 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5928 if head.column() == display_map.line_len(head.row()) {
5929 transpose_offset = display_map
5930 .buffer_snapshot
5931 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5932 }
5933
5934 if transpose_offset == 0 {
5935 return;
5936 }
5937
5938 *head.column_mut() += 1;
5939 head = display_map.clip_point(head, Bias::Right);
5940 let goal = SelectionGoal::HorizontalPosition(
5941 display_map
5942 .x_for_display_point(head, &text_layout_details)
5943 .into(),
5944 );
5945 selection.collapse_to(head, goal);
5946
5947 let transpose_start = display_map
5948 .buffer_snapshot
5949 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5950 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5951 let transpose_end = display_map
5952 .buffer_snapshot
5953 .clip_offset(transpose_offset + 1, Bias::Right);
5954 if let Some(ch) =
5955 display_map.buffer_snapshot.chars_at(transpose_start).next()
5956 {
5957 edits.push((transpose_start..transpose_offset, String::new()));
5958 edits.push((transpose_end..transpose_end, ch.to_string()));
5959 }
5960 }
5961 });
5962 edits
5963 });
5964 this.buffer
5965 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5966 let selections = this.selections.all::<usize>(cx);
5967 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5968 s.select(selections);
5969 });
5970 });
5971 }
5972
5973 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5974 let mut text = String::new();
5975 let buffer = self.buffer.read(cx).snapshot(cx);
5976 let mut selections = self.selections.all::<Point>(cx);
5977 let mut clipboard_selections = Vec::with_capacity(selections.len());
5978 {
5979 let max_point = buffer.max_point();
5980 let mut is_first = true;
5981 for selection in &mut selections {
5982 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5983 if is_entire_line {
5984 selection.start = Point::new(selection.start.row, 0);
5985 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5986 selection.goal = SelectionGoal::None;
5987 }
5988 if is_first {
5989 is_first = false;
5990 } else {
5991 text += "\n";
5992 }
5993 let mut len = 0;
5994 for chunk in buffer.text_for_range(selection.start..selection.end) {
5995 text.push_str(chunk);
5996 len += chunk.len();
5997 }
5998 clipboard_selections.push(ClipboardSelection {
5999 len,
6000 is_entire_line,
6001 first_line_indent: buffer
6002 .indent_size_for_line(MultiBufferRow(selection.start.row))
6003 .len,
6004 });
6005 }
6006 }
6007
6008 self.transact(cx, |this, cx| {
6009 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6010 s.select(selections);
6011 });
6012 this.insert("", cx);
6013 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6014 });
6015 }
6016
6017 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6018 let selections = self.selections.all::<Point>(cx);
6019 let buffer = self.buffer.read(cx).read(cx);
6020 let mut text = String::new();
6021
6022 let mut clipboard_selections = Vec::with_capacity(selections.len());
6023 {
6024 let max_point = buffer.max_point();
6025 let mut is_first = true;
6026 for selection in selections.iter() {
6027 let mut start = selection.start;
6028 let mut end = selection.end;
6029 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6030 if is_entire_line {
6031 start = Point::new(start.row, 0);
6032 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6033 }
6034 if is_first {
6035 is_first = false;
6036 } else {
6037 text += "\n";
6038 }
6039 let mut len = 0;
6040 for chunk in buffer.text_for_range(start..end) {
6041 text.push_str(chunk);
6042 len += chunk.len();
6043 }
6044 clipboard_selections.push(ClipboardSelection {
6045 len,
6046 is_entire_line,
6047 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6048 });
6049 }
6050 }
6051
6052 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6053 }
6054
6055 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6056 if self.read_only(cx) {
6057 return;
6058 }
6059
6060 self.transact(cx, |this, cx| {
6061 if let Some(item) = cx.read_from_clipboard() {
6062 let clipboard_text = Cow::Borrowed(item.text());
6063 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6064 let old_selections = this.selections.all::<usize>(cx);
6065 let all_selections_were_entire_line =
6066 clipboard_selections.iter().all(|s| s.is_entire_line);
6067 let first_selection_indent_column =
6068 clipboard_selections.first().map(|s| s.first_line_indent);
6069 if clipboard_selections.len() != old_selections.len() {
6070 clipboard_selections.drain(..);
6071 }
6072
6073 this.buffer.update(cx, |buffer, cx| {
6074 let snapshot = buffer.read(cx);
6075 let mut start_offset = 0;
6076 let mut edits = Vec::new();
6077 let mut original_indent_columns = Vec::new();
6078 let line_mode = this.selections.line_mode;
6079 for (ix, selection) in old_selections.iter().enumerate() {
6080 let to_insert;
6081 let entire_line;
6082 let original_indent_column;
6083 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6084 let end_offset = start_offset + clipboard_selection.len;
6085 to_insert = &clipboard_text[start_offset..end_offset];
6086 entire_line = clipboard_selection.is_entire_line;
6087 start_offset = end_offset + 1;
6088 original_indent_column =
6089 Some(clipboard_selection.first_line_indent);
6090 } else {
6091 to_insert = clipboard_text.as_str();
6092 entire_line = all_selections_were_entire_line;
6093 original_indent_column = first_selection_indent_column
6094 }
6095
6096 // If the corresponding selection was empty when this slice of the
6097 // clipboard text was written, then the entire line containing the
6098 // selection was copied. If this selection is also currently empty,
6099 // then paste the line before the current line of the buffer.
6100 let range = if selection.is_empty() && !line_mode && entire_line {
6101 let column = selection.start.to_point(&snapshot).column as usize;
6102 let line_start = selection.start - column;
6103 line_start..line_start
6104 } else {
6105 selection.range()
6106 };
6107
6108 edits.push((range, to_insert));
6109 original_indent_columns.extend(original_indent_column);
6110 }
6111 drop(snapshot);
6112
6113 buffer.edit(
6114 edits,
6115 Some(AutoindentMode::Block {
6116 original_indent_columns,
6117 }),
6118 cx,
6119 );
6120 });
6121
6122 let selections = this.selections.all::<usize>(cx);
6123 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6124 } else {
6125 this.insert(&clipboard_text, cx);
6126 }
6127 }
6128 });
6129 }
6130
6131 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6132 if self.read_only(cx) {
6133 return;
6134 }
6135
6136 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6137 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6138 self.change_selections(None, cx, |s| {
6139 s.select_anchors(selections.to_vec());
6140 });
6141 }
6142 self.request_autoscroll(Autoscroll::fit(), cx);
6143 self.unmark_text(cx);
6144 self.refresh_inline_completion(true, cx);
6145 cx.emit(EditorEvent::Edited);
6146 cx.emit(EditorEvent::TransactionUndone {
6147 transaction_id: tx_id,
6148 });
6149 }
6150 }
6151
6152 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6153 if self.read_only(cx) {
6154 return;
6155 }
6156
6157 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6158 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6159 {
6160 self.change_selections(None, cx, |s| {
6161 s.select_anchors(selections.to_vec());
6162 });
6163 }
6164 self.request_autoscroll(Autoscroll::fit(), cx);
6165 self.unmark_text(cx);
6166 self.refresh_inline_completion(true, cx);
6167 cx.emit(EditorEvent::Edited);
6168 }
6169 }
6170
6171 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6172 self.buffer
6173 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6174 }
6175
6176 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6177 self.buffer
6178 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6179 }
6180
6181 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6182 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6183 let line_mode = s.line_mode;
6184 s.move_with(|map, selection| {
6185 let cursor = if selection.is_empty() && !line_mode {
6186 movement::left(map, selection.start)
6187 } else {
6188 selection.start
6189 };
6190 selection.collapse_to(cursor, SelectionGoal::None);
6191 });
6192 })
6193 }
6194
6195 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6196 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6197 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6198 })
6199 }
6200
6201 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6202 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6203 let line_mode = s.line_mode;
6204 s.move_with(|map, selection| {
6205 let cursor = if selection.is_empty() && !line_mode {
6206 movement::right(map, selection.end)
6207 } else {
6208 selection.end
6209 };
6210 selection.collapse_to(cursor, SelectionGoal::None)
6211 });
6212 })
6213 }
6214
6215 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6216 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6217 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6218 })
6219 }
6220
6221 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6222 if self.take_rename(true, cx).is_some() {
6223 return;
6224 }
6225
6226 if matches!(self.mode, EditorMode::SingleLine) {
6227 cx.propagate();
6228 return;
6229 }
6230
6231 let text_layout_details = &self.text_layout_details(cx);
6232
6233 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6234 let line_mode = s.line_mode;
6235 s.move_with(|map, selection| {
6236 if !selection.is_empty() && !line_mode {
6237 selection.goal = SelectionGoal::None;
6238 }
6239 let (cursor, goal) = movement::up(
6240 map,
6241 selection.start,
6242 selection.goal,
6243 false,
6244 &text_layout_details,
6245 );
6246 selection.collapse_to(cursor, goal);
6247 });
6248 })
6249 }
6250
6251 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6252 if self.take_rename(true, cx).is_some() {
6253 return;
6254 }
6255
6256 if matches!(self.mode, EditorMode::SingleLine) {
6257 cx.propagate();
6258 return;
6259 }
6260
6261 let text_layout_details = &self.text_layout_details(cx);
6262
6263 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6264 let line_mode = s.line_mode;
6265 s.move_with(|map, selection| {
6266 if !selection.is_empty() && !line_mode {
6267 selection.goal = SelectionGoal::None;
6268 }
6269 let (cursor, goal) = movement::up_by_rows(
6270 map,
6271 selection.start,
6272 action.lines,
6273 selection.goal,
6274 false,
6275 &text_layout_details,
6276 );
6277 selection.collapse_to(cursor, goal);
6278 });
6279 })
6280 }
6281
6282 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6283 if self.take_rename(true, cx).is_some() {
6284 return;
6285 }
6286
6287 if matches!(self.mode, EditorMode::SingleLine) {
6288 cx.propagate();
6289 return;
6290 }
6291
6292 let text_layout_details = &self.text_layout_details(cx);
6293
6294 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6295 let line_mode = s.line_mode;
6296 s.move_with(|map, selection| {
6297 if !selection.is_empty() && !line_mode {
6298 selection.goal = SelectionGoal::None;
6299 }
6300 let (cursor, goal) = movement::down_by_rows(
6301 map,
6302 selection.start,
6303 action.lines,
6304 selection.goal,
6305 false,
6306 &text_layout_details,
6307 );
6308 selection.collapse_to(cursor, goal);
6309 });
6310 })
6311 }
6312
6313 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6314 let text_layout_details = &self.text_layout_details(cx);
6315 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6316 s.move_heads_with(|map, head, goal| {
6317 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6318 })
6319 })
6320 }
6321
6322 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6323 let text_layout_details = &self.text_layout_details(cx);
6324 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6325 s.move_heads_with(|map, head, goal| {
6326 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6327 })
6328 })
6329 }
6330
6331 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6332 if self.take_rename(true, cx).is_some() {
6333 return;
6334 }
6335
6336 if matches!(self.mode, EditorMode::SingleLine) {
6337 cx.propagate();
6338 return;
6339 }
6340
6341 let row_count = if let Some(row_count) = self.visible_line_count() {
6342 row_count as u32 - 1
6343 } else {
6344 return;
6345 };
6346
6347 let autoscroll = if action.center_cursor {
6348 Autoscroll::center()
6349 } else {
6350 Autoscroll::fit()
6351 };
6352
6353 let text_layout_details = &self.text_layout_details(cx);
6354
6355 self.change_selections(Some(autoscroll), cx, |s| {
6356 let line_mode = s.line_mode;
6357 s.move_with(|map, selection| {
6358 if !selection.is_empty() && !line_mode {
6359 selection.goal = SelectionGoal::None;
6360 }
6361 let (cursor, goal) = movement::up_by_rows(
6362 map,
6363 selection.end,
6364 row_count,
6365 selection.goal,
6366 false,
6367 &text_layout_details,
6368 );
6369 selection.collapse_to(cursor, goal);
6370 });
6371 });
6372 }
6373
6374 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6375 let text_layout_details = &self.text_layout_details(cx);
6376 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6377 s.move_heads_with(|map, head, goal| {
6378 movement::up(map, head, goal, false, &text_layout_details)
6379 })
6380 })
6381 }
6382
6383 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6384 self.take_rename(true, cx);
6385
6386 if self.mode == EditorMode::SingleLine {
6387 cx.propagate();
6388 return;
6389 }
6390
6391 let text_layout_details = &self.text_layout_details(cx);
6392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6393 let line_mode = s.line_mode;
6394 s.move_with(|map, selection| {
6395 if !selection.is_empty() && !line_mode {
6396 selection.goal = SelectionGoal::None;
6397 }
6398 let (cursor, goal) = movement::down(
6399 map,
6400 selection.end,
6401 selection.goal,
6402 false,
6403 &text_layout_details,
6404 );
6405 selection.collapse_to(cursor, goal);
6406 });
6407 });
6408 }
6409
6410 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6411 if self.take_rename(true, cx).is_some() {
6412 return;
6413 }
6414
6415 if self
6416 .context_menu
6417 .write()
6418 .as_mut()
6419 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6420 .unwrap_or(false)
6421 {
6422 return;
6423 }
6424
6425 if matches!(self.mode, EditorMode::SingleLine) {
6426 cx.propagate();
6427 return;
6428 }
6429
6430 let row_count = if let Some(row_count) = self.visible_line_count() {
6431 row_count as u32 - 1
6432 } else {
6433 return;
6434 };
6435
6436 let autoscroll = if action.center_cursor {
6437 Autoscroll::center()
6438 } else {
6439 Autoscroll::fit()
6440 };
6441
6442 let text_layout_details = &self.text_layout_details(cx);
6443 self.change_selections(Some(autoscroll), cx, |s| {
6444 let line_mode = s.line_mode;
6445 s.move_with(|map, selection| {
6446 if !selection.is_empty() && !line_mode {
6447 selection.goal = SelectionGoal::None;
6448 }
6449 let (cursor, goal) = movement::down_by_rows(
6450 map,
6451 selection.end,
6452 row_count,
6453 selection.goal,
6454 false,
6455 &text_layout_details,
6456 );
6457 selection.collapse_to(cursor, goal);
6458 });
6459 });
6460 }
6461
6462 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6463 let text_layout_details = &self.text_layout_details(cx);
6464 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6465 s.move_heads_with(|map, head, goal| {
6466 movement::down(map, head, goal, false, &text_layout_details)
6467 })
6468 });
6469 }
6470
6471 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6472 if let Some(context_menu) = self.context_menu.write().as_mut() {
6473 context_menu.select_first(self.project.as_ref(), cx);
6474 }
6475 }
6476
6477 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6478 if let Some(context_menu) = self.context_menu.write().as_mut() {
6479 context_menu.select_prev(self.project.as_ref(), cx);
6480 }
6481 }
6482
6483 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6484 if let Some(context_menu) = self.context_menu.write().as_mut() {
6485 context_menu.select_next(self.project.as_ref(), cx);
6486 }
6487 }
6488
6489 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6490 if let Some(context_menu) = self.context_menu.write().as_mut() {
6491 context_menu.select_last(self.project.as_ref(), cx);
6492 }
6493 }
6494
6495 pub fn move_to_previous_word_start(
6496 &mut self,
6497 _: &MoveToPreviousWordStart,
6498 cx: &mut ViewContext<Self>,
6499 ) {
6500 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6501 s.move_cursors_with(|map, head, _| {
6502 (
6503 movement::previous_word_start(map, head),
6504 SelectionGoal::None,
6505 )
6506 });
6507 })
6508 }
6509
6510 pub fn move_to_previous_subword_start(
6511 &mut self,
6512 _: &MoveToPreviousSubwordStart,
6513 cx: &mut ViewContext<Self>,
6514 ) {
6515 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6516 s.move_cursors_with(|map, head, _| {
6517 (
6518 movement::previous_subword_start(map, head),
6519 SelectionGoal::None,
6520 )
6521 });
6522 })
6523 }
6524
6525 pub fn select_to_previous_word_start(
6526 &mut self,
6527 _: &SelectToPreviousWordStart,
6528 cx: &mut ViewContext<Self>,
6529 ) {
6530 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6531 s.move_heads_with(|map, head, _| {
6532 (
6533 movement::previous_word_start(map, head),
6534 SelectionGoal::None,
6535 )
6536 });
6537 })
6538 }
6539
6540 pub fn select_to_previous_subword_start(
6541 &mut self,
6542 _: &SelectToPreviousSubwordStart,
6543 cx: &mut ViewContext<Self>,
6544 ) {
6545 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6546 s.move_heads_with(|map, head, _| {
6547 (
6548 movement::previous_subword_start(map, head),
6549 SelectionGoal::None,
6550 )
6551 });
6552 })
6553 }
6554
6555 pub fn delete_to_previous_word_start(
6556 &mut self,
6557 _: &DeleteToPreviousWordStart,
6558 cx: &mut ViewContext<Self>,
6559 ) {
6560 self.transact(cx, |this, cx| {
6561 this.select_autoclose_pair(cx);
6562 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6563 let line_mode = s.line_mode;
6564 s.move_with(|map, selection| {
6565 if selection.is_empty() && !line_mode {
6566 let cursor = movement::previous_word_start(map, selection.head());
6567 selection.set_head(cursor, SelectionGoal::None);
6568 }
6569 });
6570 });
6571 this.insert("", cx);
6572 });
6573 }
6574
6575 pub fn delete_to_previous_subword_start(
6576 &mut self,
6577 _: &DeleteToPreviousSubwordStart,
6578 cx: &mut ViewContext<Self>,
6579 ) {
6580 self.transact(cx, |this, cx| {
6581 this.select_autoclose_pair(cx);
6582 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6583 let line_mode = s.line_mode;
6584 s.move_with(|map, selection| {
6585 if selection.is_empty() && !line_mode {
6586 let cursor = movement::previous_subword_start(map, selection.head());
6587 selection.set_head(cursor, SelectionGoal::None);
6588 }
6589 });
6590 });
6591 this.insert("", cx);
6592 });
6593 }
6594
6595 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6596 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6597 s.move_cursors_with(|map, head, _| {
6598 (movement::next_word_end(map, head), SelectionGoal::None)
6599 });
6600 })
6601 }
6602
6603 pub fn move_to_next_subword_end(
6604 &mut self,
6605 _: &MoveToNextSubwordEnd,
6606 cx: &mut ViewContext<Self>,
6607 ) {
6608 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6609 s.move_cursors_with(|map, head, _| {
6610 (movement::next_subword_end(map, head), SelectionGoal::None)
6611 });
6612 })
6613 }
6614
6615 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6617 s.move_heads_with(|map, head, _| {
6618 (movement::next_word_end(map, head), SelectionGoal::None)
6619 });
6620 })
6621 }
6622
6623 pub fn select_to_next_subword_end(
6624 &mut self,
6625 _: &SelectToNextSubwordEnd,
6626 cx: &mut ViewContext<Self>,
6627 ) {
6628 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6629 s.move_heads_with(|map, head, _| {
6630 (movement::next_subword_end(map, head), SelectionGoal::None)
6631 });
6632 })
6633 }
6634
6635 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6636 self.transact(cx, |this, cx| {
6637 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6638 let line_mode = s.line_mode;
6639 s.move_with(|map, selection| {
6640 if selection.is_empty() && !line_mode {
6641 let cursor = movement::next_word_end(map, selection.head());
6642 selection.set_head(cursor, SelectionGoal::None);
6643 }
6644 });
6645 });
6646 this.insert("", cx);
6647 });
6648 }
6649
6650 pub fn delete_to_next_subword_end(
6651 &mut self,
6652 _: &DeleteToNextSubwordEnd,
6653 cx: &mut ViewContext<Self>,
6654 ) {
6655 self.transact(cx, |this, cx| {
6656 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6657 s.move_with(|map, selection| {
6658 if selection.is_empty() {
6659 let cursor = movement::next_subword_end(map, selection.head());
6660 selection.set_head(cursor, SelectionGoal::None);
6661 }
6662 });
6663 });
6664 this.insert("", cx);
6665 });
6666 }
6667
6668 pub fn move_to_beginning_of_line(
6669 &mut self,
6670 action: &MoveToBeginningOfLine,
6671 cx: &mut ViewContext<Self>,
6672 ) {
6673 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6674 s.move_cursors_with(|map, head, _| {
6675 (
6676 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6677 SelectionGoal::None,
6678 )
6679 });
6680 })
6681 }
6682
6683 pub fn select_to_beginning_of_line(
6684 &mut self,
6685 action: &SelectToBeginningOfLine,
6686 cx: &mut ViewContext<Self>,
6687 ) {
6688 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6689 s.move_heads_with(|map, head, _| {
6690 (
6691 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6692 SelectionGoal::None,
6693 )
6694 });
6695 });
6696 }
6697
6698 pub fn delete_to_beginning_of_line(
6699 &mut self,
6700 _: &DeleteToBeginningOfLine,
6701 cx: &mut ViewContext<Self>,
6702 ) {
6703 self.transact(cx, |this, cx| {
6704 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6705 s.move_with(|_, selection| {
6706 selection.reversed = true;
6707 });
6708 });
6709
6710 this.select_to_beginning_of_line(
6711 &SelectToBeginningOfLine {
6712 stop_at_soft_wraps: false,
6713 },
6714 cx,
6715 );
6716 this.backspace(&Backspace, cx);
6717 });
6718 }
6719
6720 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6721 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6722 s.move_cursors_with(|map, head, _| {
6723 (
6724 movement::line_end(map, head, action.stop_at_soft_wraps),
6725 SelectionGoal::None,
6726 )
6727 });
6728 })
6729 }
6730
6731 pub fn select_to_end_of_line(
6732 &mut self,
6733 action: &SelectToEndOfLine,
6734 cx: &mut ViewContext<Self>,
6735 ) {
6736 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6737 s.move_heads_with(|map, head, _| {
6738 (
6739 movement::line_end(map, head, action.stop_at_soft_wraps),
6740 SelectionGoal::None,
6741 )
6742 });
6743 })
6744 }
6745
6746 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6747 self.transact(cx, |this, cx| {
6748 this.select_to_end_of_line(
6749 &SelectToEndOfLine {
6750 stop_at_soft_wraps: false,
6751 },
6752 cx,
6753 );
6754 this.delete(&Delete, cx);
6755 });
6756 }
6757
6758 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6759 self.transact(cx, |this, cx| {
6760 this.select_to_end_of_line(
6761 &SelectToEndOfLine {
6762 stop_at_soft_wraps: false,
6763 },
6764 cx,
6765 );
6766 this.cut(&Cut, cx);
6767 });
6768 }
6769
6770 pub fn move_to_start_of_paragraph(
6771 &mut self,
6772 _: &MoveToStartOfParagraph,
6773 cx: &mut ViewContext<Self>,
6774 ) {
6775 if matches!(self.mode, EditorMode::SingleLine) {
6776 cx.propagate();
6777 return;
6778 }
6779
6780 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6781 s.move_with(|map, selection| {
6782 selection.collapse_to(
6783 movement::start_of_paragraph(map, selection.head(), 1),
6784 SelectionGoal::None,
6785 )
6786 });
6787 })
6788 }
6789
6790 pub fn move_to_end_of_paragraph(
6791 &mut self,
6792 _: &MoveToEndOfParagraph,
6793 cx: &mut ViewContext<Self>,
6794 ) {
6795 if matches!(self.mode, EditorMode::SingleLine) {
6796 cx.propagate();
6797 return;
6798 }
6799
6800 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6801 s.move_with(|map, selection| {
6802 selection.collapse_to(
6803 movement::end_of_paragraph(map, selection.head(), 1),
6804 SelectionGoal::None,
6805 )
6806 });
6807 })
6808 }
6809
6810 pub fn select_to_start_of_paragraph(
6811 &mut self,
6812 _: &SelectToStartOfParagraph,
6813 cx: &mut ViewContext<Self>,
6814 ) {
6815 if matches!(self.mode, EditorMode::SingleLine) {
6816 cx.propagate();
6817 return;
6818 }
6819
6820 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6821 s.move_heads_with(|map, head, _| {
6822 (
6823 movement::start_of_paragraph(map, head, 1),
6824 SelectionGoal::None,
6825 )
6826 });
6827 })
6828 }
6829
6830 pub fn select_to_end_of_paragraph(
6831 &mut self,
6832 _: &SelectToEndOfParagraph,
6833 cx: &mut ViewContext<Self>,
6834 ) {
6835 if matches!(self.mode, EditorMode::SingleLine) {
6836 cx.propagate();
6837 return;
6838 }
6839
6840 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6841 s.move_heads_with(|map, head, _| {
6842 (
6843 movement::end_of_paragraph(map, head, 1),
6844 SelectionGoal::None,
6845 )
6846 });
6847 })
6848 }
6849
6850 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6851 if matches!(self.mode, EditorMode::SingleLine) {
6852 cx.propagate();
6853 return;
6854 }
6855
6856 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6857 s.select_ranges(vec![0..0]);
6858 });
6859 }
6860
6861 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6862 let mut selection = self.selections.last::<Point>(cx);
6863 selection.set_head(Point::zero(), SelectionGoal::None);
6864
6865 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6866 s.select(vec![selection]);
6867 });
6868 }
6869
6870 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6871 if matches!(self.mode, EditorMode::SingleLine) {
6872 cx.propagate();
6873 return;
6874 }
6875
6876 let cursor = self.buffer.read(cx).read(cx).len();
6877 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6878 s.select_ranges(vec![cursor..cursor])
6879 });
6880 }
6881
6882 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6883 self.nav_history = nav_history;
6884 }
6885
6886 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6887 self.nav_history.as_ref()
6888 }
6889
6890 fn push_to_nav_history(
6891 &mut self,
6892 cursor_anchor: Anchor,
6893 new_position: Option<Point>,
6894 cx: &mut ViewContext<Self>,
6895 ) {
6896 if let Some(nav_history) = self.nav_history.as_mut() {
6897 let buffer = self.buffer.read(cx).read(cx);
6898 let cursor_position = cursor_anchor.to_point(&buffer);
6899 let scroll_state = self.scroll_manager.anchor();
6900 let scroll_top_row = scroll_state.top_row(&buffer);
6901 drop(buffer);
6902
6903 if let Some(new_position) = new_position {
6904 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6905 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6906 return;
6907 }
6908 }
6909
6910 nav_history.push(
6911 Some(NavigationData {
6912 cursor_anchor,
6913 cursor_position,
6914 scroll_anchor: scroll_state,
6915 scroll_top_row,
6916 }),
6917 cx,
6918 );
6919 }
6920 }
6921
6922 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6923 let buffer = self.buffer.read(cx).snapshot(cx);
6924 let mut selection = self.selections.first::<usize>(cx);
6925 selection.set_head(buffer.len(), SelectionGoal::None);
6926 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6927 s.select(vec![selection]);
6928 });
6929 }
6930
6931 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6932 let end = self.buffer.read(cx).read(cx).len();
6933 self.change_selections(None, cx, |s| {
6934 s.select_ranges(vec![0..end]);
6935 });
6936 }
6937
6938 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6939 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6940 let mut selections = self.selections.all::<Point>(cx);
6941 let max_point = display_map.buffer_snapshot.max_point();
6942 for selection in &mut selections {
6943 let rows = selection.spanned_rows(true, &display_map);
6944 selection.start = Point::new(rows.start.0, 0);
6945 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
6946 selection.reversed = false;
6947 }
6948 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6949 s.select(selections);
6950 });
6951 }
6952
6953 pub fn split_selection_into_lines(
6954 &mut self,
6955 _: &SplitSelectionIntoLines,
6956 cx: &mut ViewContext<Self>,
6957 ) {
6958 let mut to_unfold = Vec::new();
6959 let mut new_selection_ranges = Vec::new();
6960 {
6961 let selections = self.selections.all::<Point>(cx);
6962 let buffer = self.buffer.read(cx).read(cx);
6963 for selection in selections {
6964 for row in selection.start.row..selection.end.row {
6965 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
6966 new_selection_ranges.push(cursor..cursor);
6967 }
6968 new_selection_ranges.push(selection.end..selection.end);
6969 to_unfold.push(selection.start..selection.end);
6970 }
6971 }
6972 self.unfold_ranges(to_unfold, true, true, cx);
6973 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6974 s.select_ranges(new_selection_ranges);
6975 });
6976 }
6977
6978 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6979 self.add_selection(true, cx);
6980 }
6981
6982 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6983 self.add_selection(false, cx);
6984 }
6985
6986 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6987 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6988 let mut selections = self.selections.all::<Point>(cx);
6989 let text_layout_details = self.text_layout_details(cx);
6990 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6991 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6992 let range = oldest_selection.display_range(&display_map).sorted();
6993
6994 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6995 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6996 let positions = start_x.min(end_x)..start_x.max(end_x);
6997
6998 selections.clear();
6999 let mut stack = Vec::new();
7000 for row in range.start.row().0..=range.end.row().0 {
7001 if let Some(selection) = self.selections.build_columnar_selection(
7002 &display_map,
7003 DisplayRow(row),
7004 &positions,
7005 oldest_selection.reversed,
7006 &text_layout_details,
7007 ) {
7008 stack.push(selection.id);
7009 selections.push(selection);
7010 }
7011 }
7012
7013 if above {
7014 stack.reverse();
7015 }
7016
7017 AddSelectionsState { above, stack }
7018 });
7019
7020 let last_added_selection = *state.stack.last().unwrap();
7021 let mut new_selections = Vec::new();
7022 if above == state.above {
7023 let end_row = if above {
7024 DisplayRow(0)
7025 } else {
7026 display_map.max_point().row()
7027 };
7028
7029 'outer: for selection in selections {
7030 if selection.id == last_added_selection {
7031 let range = selection.display_range(&display_map).sorted();
7032 debug_assert_eq!(range.start.row(), range.end.row());
7033 let mut row = range.start.row();
7034 let positions =
7035 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7036 px(start)..px(end)
7037 } else {
7038 let start_x =
7039 display_map.x_for_display_point(range.start, &text_layout_details);
7040 let end_x =
7041 display_map.x_for_display_point(range.end, &text_layout_details);
7042 start_x.min(end_x)..start_x.max(end_x)
7043 };
7044
7045 while row != end_row {
7046 if above {
7047 row.0 -= 1;
7048 } else {
7049 row.0 += 1;
7050 }
7051
7052 if let Some(new_selection) = self.selections.build_columnar_selection(
7053 &display_map,
7054 row,
7055 &positions,
7056 selection.reversed,
7057 &text_layout_details,
7058 ) {
7059 state.stack.push(new_selection.id);
7060 if above {
7061 new_selections.push(new_selection);
7062 new_selections.push(selection);
7063 } else {
7064 new_selections.push(selection);
7065 new_selections.push(new_selection);
7066 }
7067
7068 continue 'outer;
7069 }
7070 }
7071 }
7072
7073 new_selections.push(selection);
7074 }
7075 } else {
7076 new_selections = selections;
7077 new_selections.retain(|s| s.id != last_added_selection);
7078 state.stack.pop();
7079 }
7080
7081 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7082 s.select(new_selections);
7083 });
7084 if state.stack.len() > 1 {
7085 self.add_selections_state = Some(state);
7086 }
7087 }
7088
7089 pub fn select_next_match_internal(
7090 &mut self,
7091 display_map: &DisplaySnapshot,
7092 replace_newest: bool,
7093 autoscroll: Option<Autoscroll>,
7094 cx: &mut ViewContext<Self>,
7095 ) -> Result<()> {
7096 fn select_next_match_ranges(
7097 this: &mut Editor,
7098 range: Range<usize>,
7099 replace_newest: bool,
7100 auto_scroll: Option<Autoscroll>,
7101 cx: &mut ViewContext<Editor>,
7102 ) {
7103 this.unfold_ranges([range.clone()], false, true, cx);
7104 this.change_selections(auto_scroll, cx, |s| {
7105 if replace_newest {
7106 s.delete(s.newest_anchor().id);
7107 }
7108 s.insert_range(range.clone());
7109 });
7110 }
7111
7112 let buffer = &display_map.buffer_snapshot;
7113 let mut selections = self.selections.all::<usize>(cx);
7114 if let Some(mut select_next_state) = self.select_next_state.take() {
7115 let query = &select_next_state.query;
7116 if !select_next_state.done {
7117 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7118 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7119 let mut next_selected_range = None;
7120
7121 let bytes_after_last_selection =
7122 buffer.bytes_in_range(last_selection.end..buffer.len());
7123 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7124 let query_matches = query
7125 .stream_find_iter(bytes_after_last_selection)
7126 .map(|result| (last_selection.end, result))
7127 .chain(
7128 query
7129 .stream_find_iter(bytes_before_first_selection)
7130 .map(|result| (0, result)),
7131 );
7132
7133 for (start_offset, query_match) in query_matches {
7134 let query_match = query_match.unwrap(); // can only fail due to I/O
7135 let offset_range =
7136 start_offset + query_match.start()..start_offset + query_match.end();
7137 let display_range = offset_range.start.to_display_point(&display_map)
7138 ..offset_range.end.to_display_point(&display_map);
7139
7140 if !select_next_state.wordwise
7141 || (!movement::is_inside_word(&display_map, display_range.start)
7142 && !movement::is_inside_word(&display_map, display_range.end))
7143 {
7144 // TODO: This is n^2, because we might check all the selections
7145 if !selections
7146 .iter()
7147 .any(|selection| selection.range().overlaps(&offset_range))
7148 {
7149 next_selected_range = Some(offset_range);
7150 break;
7151 }
7152 }
7153 }
7154
7155 if let Some(next_selected_range) = next_selected_range {
7156 select_next_match_ranges(
7157 self,
7158 next_selected_range,
7159 replace_newest,
7160 autoscroll,
7161 cx,
7162 );
7163 } else {
7164 select_next_state.done = true;
7165 }
7166 }
7167
7168 self.select_next_state = Some(select_next_state);
7169 } else {
7170 let mut only_carets = true;
7171 let mut same_text_selected = true;
7172 let mut selected_text = None;
7173
7174 let mut selections_iter = selections.iter().peekable();
7175 while let Some(selection) = selections_iter.next() {
7176 if selection.start != selection.end {
7177 only_carets = false;
7178 }
7179
7180 if same_text_selected {
7181 if selected_text.is_none() {
7182 selected_text =
7183 Some(buffer.text_for_range(selection.range()).collect::<String>());
7184 }
7185
7186 if let Some(next_selection) = selections_iter.peek() {
7187 if next_selection.range().len() == selection.range().len() {
7188 let next_selected_text = buffer
7189 .text_for_range(next_selection.range())
7190 .collect::<String>();
7191 if Some(next_selected_text) != selected_text {
7192 same_text_selected = false;
7193 selected_text = None;
7194 }
7195 } else {
7196 same_text_selected = false;
7197 selected_text = None;
7198 }
7199 }
7200 }
7201 }
7202
7203 if only_carets {
7204 for selection in &mut selections {
7205 let word_range = movement::surrounding_word(
7206 &display_map,
7207 selection.start.to_display_point(&display_map),
7208 );
7209 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7210 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7211 selection.goal = SelectionGoal::None;
7212 selection.reversed = false;
7213 select_next_match_ranges(
7214 self,
7215 selection.start..selection.end,
7216 replace_newest,
7217 autoscroll,
7218 cx,
7219 );
7220 }
7221
7222 if selections.len() == 1 {
7223 let selection = selections
7224 .last()
7225 .expect("ensured that there's only one selection");
7226 let query = buffer
7227 .text_for_range(selection.start..selection.end)
7228 .collect::<String>();
7229 let is_empty = query.is_empty();
7230 let select_state = SelectNextState {
7231 query: AhoCorasick::new(&[query])?,
7232 wordwise: true,
7233 done: is_empty,
7234 };
7235 self.select_next_state = Some(select_state);
7236 } else {
7237 self.select_next_state = None;
7238 }
7239 } else if let Some(selected_text) = selected_text {
7240 self.select_next_state = Some(SelectNextState {
7241 query: AhoCorasick::new(&[selected_text])?,
7242 wordwise: false,
7243 done: false,
7244 });
7245 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7246 }
7247 }
7248 Ok(())
7249 }
7250
7251 pub fn select_all_matches(
7252 &mut self,
7253 _action: &SelectAllMatches,
7254 cx: &mut ViewContext<Self>,
7255 ) -> Result<()> {
7256 self.push_to_selection_history();
7257 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7258
7259 self.select_next_match_internal(&display_map, false, None, cx)?;
7260 let Some(select_next_state) = self.select_next_state.as_mut() else {
7261 return Ok(());
7262 };
7263 if select_next_state.done {
7264 return Ok(());
7265 }
7266
7267 let mut new_selections = self.selections.all::<usize>(cx);
7268
7269 let buffer = &display_map.buffer_snapshot;
7270 let query_matches = select_next_state
7271 .query
7272 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7273
7274 for query_match in query_matches {
7275 let query_match = query_match.unwrap(); // can only fail due to I/O
7276 let offset_range = query_match.start()..query_match.end();
7277 let display_range = offset_range.start.to_display_point(&display_map)
7278 ..offset_range.end.to_display_point(&display_map);
7279
7280 if !select_next_state.wordwise
7281 || (!movement::is_inside_word(&display_map, display_range.start)
7282 && !movement::is_inside_word(&display_map, display_range.end))
7283 {
7284 self.selections.change_with(cx, |selections| {
7285 new_selections.push(Selection {
7286 id: selections.new_selection_id(),
7287 start: offset_range.start,
7288 end: offset_range.end,
7289 reversed: false,
7290 goal: SelectionGoal::None,
7291 });
7292 });
7293 }
7294 }
7295
7296 new_selections.sort_by_key(|selection| selection.start);
7297 let mut ix = 0;
7298 while ix + 1 < new_selections.len() {
7299 let current_selection = &new_selections[ix];
7300 let next_selection = &new_selections[ix + 1];
7301 if current_selection.range().overlaps(&next_selection.range()) {
7302 if current_selection.id < next_selection.id {
7303 new_selections.remove(ix + 1);
7304 } else {
7305 new_selections.remove(ix);
7306 }
7307 } else {
7308 ix += 1;
7309 }
7310 }
7311
7312 select_next_state.done = true;
7313 self.unfold_ranges(
7314 new_selections.iter().map(|selection| selection.range()),
7315 false,
7316 false,
7317 cx,
7318 );
7319 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7320 selections.select(new_selections)
7321 });
7322
7323 Ok(())
7324 }
7325
7326 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7327 self.push_to_selection_history();
7328 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7329 self.select_next_match_internal(
7330 &display_map,
7331 action.replace_newest,
7332 Some(Autoscroll::newest()),
7333 cx,
7334 )?;
7335 Ok(())
7336 }
7337
7338 pub fn select_previous(
7339 &mut self,
7340 action: &SelectPrevious,
7341 cx: &mut ViewContext<Self>,
7342 ) -> Result<()> {
7343 self.push_to_selection_history();
7344 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7345 let buffer = &display_map.buffer_snapshot;
7346 let mut selections = self.selections.all::<usize>(cx);
7347 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7348 let query = &select_prev_state.query;
7349 if !select_prev_state.done {
7350 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7351 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7352 let mut next_selected_range = None;
7353 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7354 let bytes_before_last_selection =
7355 buffer.reversed_bytes_in_range(0..last_selection.start);
7356 let bytes_after_first_selection =
7357 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7358 let query_matches = query
7359 .stream_find_iter(bytes_before_last_selection)
7360 .map(|result| (last_selection.start, result))
7361 .chain(
7362 query
7363 .stream_find_iter(bytes_after_first_selection)
7364 .map(|result| (buffer.len(), result)),
7365 );
7366 for (end_offset, query_match) in query_matches {
7367 let query_match = query_match.unwrap(); // can only fail due to I/O
7368 let offset_range =
7369 end_offset - query_match.end()..end_offset - query_match.start();
7370 let display_range = offset_range.start.to_display_point(&display_map)
7371 ..offset_range.end.to_display_point(&display_map);
7372
7373 if !select_prev_state.wordwise
7374 || (!movement::is_inside_word(&display_map, display_range.start)
7375 && !movement::is_inside_word(&display_map, display_range.end))
7376 {
7377 next_selected_range = Some(offset_range);
7378 break;
7379 }
7380 }
7381
7382 if let Some(next_selected_range) = next_selected_range {
7383 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7384 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7385 if action.replace_newest {
7386 s.delete(s.newest_anchor().id);
7387 }
7388 s.insert_range(next_selected_range);
7389 });
7390 } else {
7391 select_prev_state.done = true;
7392 }
7393 }
7394
7395 self.select_prev_state = Some(select_prev_state);
7396 } else {
7397 let mut only_carets = true;
7398 let mut same_text_selected = true;
7399 let mut selected_text = None;
7400
7401 let mut selections_iter = selections.iter().peekable();
7402 while let Some(selection) = selections_iter.next() {
7403 if selection.start != selection.end {
7404 only_carets = false;
7405 }
7406
7407 if same_text_selected {
7408 if selected_text.is_none() {
7409 selected_text =
7410 Some(buffer.text_for_range(selection.range()).collect::<String>());
7411 }
7412
7413 if let Some(next_selection) = selections_iter.peek() {
7414 if next_selection.range().len() == selection.range().len() {
7415 let next_selected_text = buffer
7416 .text_for_range(next_selection.range())
7417 .collect::<String>();
7418 if Some(next_selected_text) != selected_text {
7419 same_text_selected = false;
7420 selected_text = None;
7421 }
7422 } else {
7423 same_text_selected = false;
7424 selected_text = None;
7425 }
7426 }
7427 }
7428 }
7429
7430 if only_carets {
7431 for selection in &mut selections {
7432 let word_range = movement::surrounding_word(
7433 &display_map,
7434 selection.start.to_display_point(&display_map),
7435 );
7436 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7437 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7438 selection.goal = SelectionGoal::None;
7439 selection.reversed = false;
7440 }
7441 if selections.len() == 1 {
7442 let selection = selections
7443 .last()
7444 .expect("ensured that there's only one selection");
7445 let query = buffer
7446 .text_for_range(selection.start..selection.end)
7447 .collect::<String>();
7448 let is_empty = query.is_empty();
7449 let select_state = SelectNextState {
7450 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7451 wordwise: true,
7452 done: is_empty,
7453 };
7454 self.select_prev_state = Some(select_state);
7455 } else {
7456 self.select_prev_state = None;
7457 }
7458
7459 self.unfold_ranges(
7460 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7461 false,
7462 true,
7463 cx,
7464 );
7465 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7466 s.select(selections);
7467 });
7468 } else if let Some(selected_text) = selected_text {
7469 self.select_prev_state = Some(SelectNextState {
7470 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7471 wordwise: false,
7472 done: false,
7473 });
7474 self.select_previous(action, cx)?;
7475 }
7476 }
7477 Ok(())
7478 }
7479
7480 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7481 let text_layout_details = &self.text_layout_details(cx);
7482 self.transact(cx, |this, cx| {
7483 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7484 let mut edits = Vec::new();
7485 let mut selection_edit_ranges = Vec::new();
7486 let mut last_toggled_row = None;
7487 let snapshot = this.buffer.read(cx).read(cx);
7488 let empty_str: Arc<str> = "".into();
7489 let mut suffixes_inserted = Vec::new();
7490
7491 fn comment_prefix_range(
7492 snapshot: &MultiBufferSnapshot,
7493 row: MultiBufferRow,
7494 comment_prefix: &str,
7495 comment_prefix_whitespace: &str,
7496 ) -> Range<Point> {
7497 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7498
7499 let mut line_bytes = snapshot
7500 .bytes_in_range(start..snapshot.max_point())
7501 .flatten()
7502 .copied();
7503
7504 // If this line currently begins with the line comment prefix, then record
7505 // the range containing the prefix.
7506 if line_bytes
7507 .by_ref()
7508 .take(comment_prefix.len())
7509 .eq(comment_prefix.bytes())
7510 {
7511 // Include any whitespace that matches the comment prefix.
7512 let matching_whitespace_len = line_bytes
7513 .zip(comment_prefix_whitespace.bytes())
7514 .take_while(|(a, b)| a == b)
7515 .count() as u32;
7516 let end = Point::new(
7517 start.row,
7518 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7519 );
7520 start..end
7521 } else {
7522 start..start
7523 }
7524 }
7525
7526 fn comment_suffix_range(
7527 snapshot: &MultiBufferSnapshot,
7528 row: MultiBufferRow,
7529 comment_suffix: &str,
7530 comment_suffix_has_leading_space: bool,
7531 ) -> Range<Point> {
7532 let end = Point::new(row.0, snapshot.line_len(row));
7533 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7534
7535 let mut line_end_bytes = snapshot
7536 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7537 .flatten()
7538 .copied();
7539
7540 let leading_space_len = if suffix_start_column > 0
7541 && line_end_bytes.next() == Some(b' ')
7542 && comment_suffix_has_leading_space
7543 {
7544 1
7545 } else {
7546 0
7547 };
7548
7549 // If this line currently begins with the line comment prefix, then record
7550 // the range containing the prefix.
7551 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7552 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7553 start..end
7554 } else {
7555 end..end
7556 }
7557 }
7558
7559 // TODO: Handle selections that cross excerpts
7560 for selection in &mut selections {
7561 let start_column = snapshot
7562 .indent_size_for_line(MultiBufferRow(selection.start.row))
7563 .len;
7564 let language = if let Some(language) =
7565 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7566 {
7567 language
7568 } else {
7569 continue;
7570 };
7571
7572 selection_edit_ranges.clear();
7573
7574 // If multiple selections contain a given row, avoid processing that
7575 // row more than once.
7576 let mut start_row = MultiBufferRow(selection.start.row);
7577 if last_toggled_row == Some(start_row) {
7578 start_row = start_row.next_row();
7579 }
7580 let end_row =
7581 if selection.end.row > selection.start.row && selection.end.column == 0 {
7582 MultiBufferRow(selection.end.row - 1)
7583 } else {
7584 MultiBufferRow(selection.end.row)
7585 };
7586 last_toggled_row = Some(end_row);
7587
7588 if start_row > end_row {
7589 continue;
7590 }
7591
7592 // If the language has line comments, toggle those.
7593 let full_comment_prefixes = language.line_comment_prefixes();
7594 if !full_comment_prefixes.is_empty() {
7595 let first_prefix = full_comment_prefixes
7596 .first()
7597 .expect("prefixes is non-empty");
7598 let prefix_trimmed_lengths = full_comment_prefixes
7599 .iter()
7600 .map(|p| p.trim_end_matches(' ').len())
7601 .collect::<SmallVec<[usize; 4]>>();
7602
7603 let mut all_selection_lines_are_comments = true;
7604
7605 for row in start_row.0..=end_row.0 {
7606 let row = MultiBufferRow(row);
7607 if start_row < end_row && snapshot.is_line_blank(row) {
7608 continue;
7609 }
7610
7611 let prefix_range = full_comment_prefixes
7612 .iter()
7613 .zip(prefix_trimmed_lengths.iter().copied())
7614 .map(|(prefix, trimmed_prefix_len)| {
7615 comment_prefix_range(
7616 snapshot.deref(),
7617 row,
7618 &prefix[..trimmed_prefix_len],
7619 &prefix[trimmed_prefix_len..],
7620 )
7621 })
7622 .max_by_key(|range| range.end.column - range.start.column)
7623 .expect("prefixes is non-empty");
7624
7625 if prefix_range.is_empty() {
7626 all_selection_lines_are_comments = false;
7627 }
7628
7629 selection_edit_ranges.push(prefix_range);
7630 }
7631
7632 if all_selection_lines_are_comments {
7633 edits.extend(
7634 selection_edit_ranges
7635 .iter()
7636 .cloned()
7637 .map(|range| (range, empty_str.clone())),
7638 );
7639 } else {
7640 let min_column = selection_edit_ranges
7641 .iter()
7642 .map(|range| range.start.column)
7643 .min()
7644 .unwrap_or(0);
7645 edits.extend(selection_edit_ranges.iter().map(|range| {
7646 let position = Point::new(range.start.row, min_column);
7647 (position..position, first_prefix.clone())
7648 }));
7649 }
7650 } else if let Some((full_comment_prefix, comment_suffix)) =
7651 language.block_comment_delimiters()
7652 {
7653 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7654 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7655 let prefix_range = comment_prefix_range(
7656 snapshot.deref(),
7657 start_row,
7658 comment_prefix,
7659 comment_prefix_whitespace,
7660 );
7661 let suffix_range = comment_suffix_range(
7662 snapshot.deref(),
7663 end_row,
7664 comment_suffix.trim_start_matches(' '),
7665 comment_suffix.starts_with(' '),
7666 );
7667
7668 if prefix_range.is_empty() || suffix_range.is_empty() {
7669 edits.push((
7670 prefix_range.start..prefix_range.start,
7671 full_comment_prefix.clone(),
7672 ));
7673 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7674 suffixes_inserted.push((end_row, comment_suffix.len()));
7675 } else {
7676 edits.push((prefix_range, empty_str.clone()));
7677 edits.push((suffix_range, empty_str.clone()));
7678 }
7679 } else {
7680 continue;
7681 }
7682 }
7683
7684 drop(snapshot);
7685 this.buffer.update(cx, |buffer, cx| {
7686 buffer.edit(edits, None, cx);
7687 });
7688
7689 // Adjust selections so that they end before any comment suffixes that
7690 // were inserted.
7691 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7692 let mut selections = this.selections.all::<Point>(cx);
7693 let snapshot = this.buffer.read(cx).read(cx);
7694 for selection in &mut selections {
7695 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7696 match row.cmp(&MultiBufferRow(selection.end.row)) {
7697 Ordering::Less => {
7698 suffixes_inserted.next();
7699 continue;
7700 }
7701 Ordering::Greater => break,
7702 Ordering::Equal => {
7703 if selection.end.column == snapshot.line_len(row) {
7704 if selection.is_empty() {
7705 selection.start.column -= suffix_len as u32;
7706 }
7707 selection.end.column -= suffix_len as u32;
7708 }
7709 break;
7710 }
7711 }
7712 }
7713 }
7714
7715 drop(snapshot);
7716 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7717
7718 let selections = this.selections.all::<Point>(cx);
7719 let selections_on_single_row = selections.windows(2).all(|selections| {
7720 selections[0].start.row == selections[1].start.row
7721 && selections[0].end.row == selections[1].end.row
7722 && selections[0].start.row == selections[0].end.row
7723 });
7724 let selections_selecting = selections
7725 .iter()
7726 .any(|selection| selection.start != selection.end);
7727 let advance_downwards = action.advance_downwards
7728 && selections_on_single_row
7729 && !selections_selecting
7730 && this.mode != EditorMode::SingleLine;
7731
7732 if advance_downwards {
7733 let snapshot = this.buffer.read(cx).snapshot(cx);
7734
7735 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7736 s.move_cursors_with(|display_snapshot, display_point, _| {
7737 let mut point = display_point.to_point(display_snapshot);
7738 point.row += 1;
7739 point = snapshot.clip_point(point, Bias::Left);
7740 let display_point = point.to_display_point(display_snapshot);
7741 let goal = SelectionGoal::HorizontalPosition(
7742 display_snapshot
7743 .x_for_display_point(display_point, &text_layout_details)
7744 .into(),
7745 );
7746 (display_point, goal)
7747 })
7748 });
7749 }
7750 });
7751 }
7752
7753 pub fn select_larger_syntax_node(
7754 &mut self,
7755 _: &SelectLargerSyntaxNode,
7756 cx: &mut ViewContext<Self>,
7757 ) {
7758 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7759 let buffer = self.buffer.read(cx).snapshot(cx);
7760 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7761
7762 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7763 let mut selected_larger_node = false;
7764 let new_selections = old_selections
7765 .iter()
7766 .map(|selection| {
7767 let old_range = selection.start..selection.end;
7768 let mut new_range = old_range.clone();
7769 while let Some(containing_range) =
7770 buffer.range_for_syntax_ancestor(new_range.clone())
7771 {
7772 new_range = containing_range;
7773 if !display_map.intersects_fold(new_range.start)
7774 && !display_map.intersects_fold(new_range.end)
7775 {
7776 break;
7777 }
7778 }
7779
7780 selected_larger_node |= new_range != old_range;
7781 Selection {
7782 id: selection.id,
7783 start: new_range.start,
7784 end: new_range.end,
7785 goal: SelectionGoal::None,
7786 reversed: selection.reversed,
7787 }
7788 })
7789 .collect::<Vec<_>>();
7790
7791 if selected_larger_node {
7792 stack.push(old_selections);
7793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7794 s.select(new_selections);
7795 });
7796 }
7797 self.select_larger_syntax_node_stack = stack;
7798 }
7799
7800 pub fn select_smaller_syntax_node(
7801 &mut self,
7802 _: &SelectSmallerSyntaxNode,
7803 cx: &mut ViewContext<Self>,
7804 ) {
7805 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7806 if let Some(selections) = stack.pop() {
7807 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7808 s.select(selections.to_vec());
7809 });
7810 }
7811 self.select_larger_syntax_node_stack = stack;
7812 }
7813
7814 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7815 let project = self.project.clone();
7816 cx.spawn(|this, mut cx| async move {
7817 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7818 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7819 }) else {
7820 return;
7821 };
7822
7823 let Some(project) = project else {
7824 return;
7825 };
7826 if project
7827 .update(&mut cx, |this, _| this.is_remote())
7828 .unwrap_or(true)
7829 {
7830 // Do not display any test indicators in remote projects.
7831 return;
7832 }
7833 let new_rows =
7834 cx.background_executor()
7835 .spawn({
7836 let snapshot = display_snapshot.clone();
7837 async move {
7838 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7839 }
7840 })
7841 .await;
7842 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7843
7844 this.update(&mut cx, |this, _| {
7845 this.clear_tasks();
7846 for (key, value) in rows {
7847 this.insert_tasks(key, value);
7848 }
7849 })
7850 .ok();
7851 })
7852 }
7853 fn fetch_runnable_ranges(
7854 snapshot: &DisplaySnapshot,
7855 range: Range<Anchor>,
7856 ) -> Vec<language::RunnableRange> {
7857 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7858 }
7859
7860 fn runnable_rows(
7861 project: Model<Project>,
7862 snapshot: DisplaySnapshot,
7863 runnable_ranges: Vec<RunnableRange>,
7864 mut cx: AsyncWindowContext,
7865 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7866 runnable_ranges
7867 .into_iter()
7868 .filter_map(|mut runnable| {
7869 let (tasks, _) = cx
7870 .update(|cx| {
7871 Self::resolve_runnable(project.clone(), &mut runnable.runnable, cx)
7872 })
7873 .ok()?;
7874 if tasks.is_empty() {
7875 return None;
7876 }
7877
7878 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7879
7880 let row = snapshot
7881 .buffer_snapshot
7882 .buffer_line_for_row(MultiBufferRow(point.row))?
7883 .1
7884 .start
7885 .row;
7886
7887 Some((
7888 (runnable.buffer_id, row),
7889 (
7890 runnable.run_range.start,
7891 RunnableTasks {
7892 templates: tasks,
7893 column: point.column,
7894 extra_variables: runnable.extra_captures,
7895 },
7896 ),
7897 ))
7898 })
7899 .collect()
7900 }
7901
7902 fn resolve_runnable(
7903 project: Model<Project>,
7904 runnable: &mut Runnable,
7905 cx: &WindowContext<'_>,
7906 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7907 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7908 let worktree_id = project
7909 .buffer_for_id(runnable.buffer)
7910 .and_then(|buffer| buffer.read(cx).file())
7911 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7912
7913 (project.task_inventory().clone(), worktree_id)
7914 });
7915
7916 let inventory = inventory.read(cx);
7917 let tags = mem::take(&mut runnable.tags);
7918 let mut tags: Vec<_> = tags
7919 .into_iter()
7920 .flat_map(|tag| {
7921 let tag = tag.0.clone();
7922 inventory
7923 .list_tasks(Some(runnable.language.clone()), worktree_id)
7924 .into_iter()
7925 .filter(move |(_, template)| {
7926 template.tags.iter().any(|source_tag| source_tag == &tag)
7927 })
7928 })
7929 .sorted_by_key(|(kind, _)| kind.to_owned())
7930 .collect();
7931 if let Some((leading_tag_source, _)) = tags.first() {
7932 // Strongest source wins; if we have worktree tag binding, prefer that to
7933 // global and language bindings;
7934 // if we have a global binding, prefer that to language binding.
7935 let first_mismatch = tags
7936 .iter()
7937 .position(|(tag_source, _)| tag_source != leading_tag_source);
7938 if let Some(index) = first_mismatch {
7939 tags.truncate(index);
7940 }
7941 }
7942
7943 (tags, worktree_id)
7944 }
7945
7946 pub fn move_to_enclosing_bracket(
7947 &mut self,
7948 _: &MoveToEnclosingBracket,
7949 cx: &mut ViewContext<Self>,
7950 ) {
7951 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7952 s.move_offsets_with(|snapshot, selection| {
7953 let Some(enclosing_bracket_ranges) =
7954 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7955 else {
7956 return;
7957 };
7958
7959 let mut best_length = usize::MAX;
7960 let mut best_inside = false;
7961 let mut best_in_bracket_range = false;
7962 let mut best_destination = None;
7963 for (open, close) in enclosing_bracket_ranges {
7964 let close = close.to_inclusive();
7965 let length = close.end() - open.start;
7966 let inside = selection.start >= open.end && selection.end <= *close.start();
7967 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7968 || close.contains(&selection.head());
7969
7970 // If best is next to a bracket and current isn't, skip
7971 if !in_bracket_range && best_in_bracket_range {
7972 continue;
7973 }
7974
7975 // Prefer smaller lengths unless best is inside and current isn't
7976 if length > best_length && (best_inside || !inside) {
7977 continue;
7978 }
7979
7980 best_length = length;
7981 best_inside = inside;
7982 best_in_bracket_range = in_bracket_range;
7983 best_destination = Some(
7984 if close.contains(&selection.start) && close.contains(&selection.end) {
7985 if inside {
7986 open.end
7987 } else {
7988 open.start
7989 }
7990 } else {
7991 if inside {
7992 *close.start()
7993 } else {
7994 *close.end()
7995 }
7996 },
7997 );
7998 }
7999
8000 if let Some(destination) = best_destination {
8001 selection.collapse_to(destination, SelectionGoal::None);
8002 }
8003 })
8004 });
8005 }
8006
8007 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8008 self.end_selection(cx);
8009 self.selection_history.mode = SelectionHistoryMode::Undoing;
8010 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8011 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8012 self.select_next_state = entry.select_next_state;
8013 self.select_prev_state = entry.select_prev_state;
8014 self.add_selections_state = entry.add_selections_state;
8015 self.request_autoscroll(Autoscroll::newest(), cx);
8016 }
8017 self.selection_history.mode = SelectionHistoryMode::Normal;
8018 }
8019
8020 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8021 self.end_selection(cx);
8022 self.selection_history.mode = SelectionHistoryMode::Redoing;
8023 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8024 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8025 self.select_next_state = entry.select_next_state;
8026 self.select_prev_state = entry.select_prev_state;
8027 self.add_selections_state = entry.add_selections_state;
8028 self.request_autoscroll(Autoscroll::newest(), cx);
8029 }
8030 self.selection_history.mode = SelectionHistoryMode::Normal;
8031 }
8032
8033 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8034 let selections = self.selections.disjoint_anchors();
8035
8036 let lines = if action.lines == 0 { 3 } else { action.lines };
8037
8038 self.buffer.update(cx, |buffer, cx| {
8039 buffer.expand_excerpts(
8040 selections
8041 .into_iter()
8042 .map(|selection| selection.head().excerpt_id)
8043 .dedup(),
8044 lines,
8045 cx,
8046 )
8047 })
8048 }
8049
8050 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
8051 self.buffer
8052 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
8053 }
8054
8055 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8056 self.go_to_diagnostic_impl(Direction::Next, cx)
8057 }
8058
8059 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8060 self.go_to_diagnostic_impl(Direction::Prev, cx)
8061 }
8062
8063 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8064 let buffer = self.buffer.read(cx).snapshot(cx);
8065 let selection = self.selections.newest::<usize>(cx);
8066
8067 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8068 if direction == Direction::Next {
8069 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8070 let (group_id, jump_to) = popover.activation_info();
8071 if self.activate_diagnostics(group_id, cx) {
8072 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8073 let mut new_selection = s.newest_anchor().clone();
8074 new_selection.collapse_to(jump_to, SelectionGoal::None);
8075 s.select_anchors(vec![new_selection.clone()]);
8076 });
8077 }
8078 return;
8079 }
8080 }
8081
8082 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8083 active_diagnostics
8084 .primary_range
8085 .to_offset(&buffer)
8086 .to_inclusive()
8087 });
8088 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8089 if active_primary_range.contains(&selection.head()) {
8090 *active_primary_range.start()
8091 } else {
8092 selection.head()
8093 }
8094 } else {
8095 selection.head()
8096 };
8097 let snapshot = self.snapshot(cx);
8098 loop {
8099 let diagnostics = if direction == Direction::Prev {
8100 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8101 } else {
8102 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8103 }
8104 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8105 let group = diagnostics
8106 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8107 // be sorted in a stable way
8108 // skip until we are at current active diagnostic, if it exists
8109 .skip_while(|entry| {
8110 (match direction {
8111 Direction::Prev => entry.range.start >= search_start,
8112 Direction::Next => entry.range.start <= search_start,
8113 }) && self
8114 .active_diagnostics
8115 .as_ref()
8116 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8117 })
8118 .find_map(|entry| {
8119 if entry.diagnostic.is_primary
8120 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8121 && !entry.range.is_empty()
8122 // if we match with the active diagnostic, skip it
8123 && Some(entry.diagnostic.group_id)
8124 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8125 {
8126 Some((entry.range, entry.diagnostic.group_id))
8127 } else {
8128 None
8129 }
8130 });
8131
8132 if let Some((primary_range, group_id)) = group {
8133 if self.activate_diagnostics(group_id, cx) {
8134 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8135 s.select(vec![Selection {
8136 id: selection.id,
8137 start: primary_range.start,
8138 end: primary_range.start,
8139 reversed: false,
8140 goal: SelectionGoal::None,
8141 }]);
8142 });
8143 }
8144 break;
8145 } else {
8146 // Cycle around to the start of the buffer, potentially moving back to the start of
8147 // the currently active diagnostic.
8148 active_primary_range.take();
8149 if direction == Direction::Prev {
8150 if search_start == buffer.len() {
8151 break;
8152 } else {
8153 search_start = buffer.len();
8154 }
8155 } else if search_start == 0 {
8156 break;
8157 } else {
8158 search_start = 0;
8159 }
8160 }
8161 }
8162 }
8163
8164 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8165 let snapshot = self
8166 .display_map
8167 .update(cx, |display_map, cx| display_map.snapshot(cx));
8168 let selection = self.selections.newest::<Point>(cx);
8169
8170 if !self.seek_in_direction(
8171 &snapshot,
8172 selection.head(),
8173 false,
8174 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8175 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8176 ),
8177 cx,
8178 ) {
8179 let wrapped_point = Point::zero();
8180 self.seek_in_direction(
8181 &snapshot,
8182 wrapped_point,
8183 true,
8184 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8185 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8186 ),
8187 cx,
8188 );
8189 }
8190 }
8191
8192 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8193 let snapshot = self
8194 .display_map
8195 .update(cx, |display_map, cx| display_map.snapshot(cx));
8196 let selection = self.selections.newest::<Point>(cx);
8197
8198 if !self.seek_in_direction(
8199 &snapshot,
8200 selection.head(),
8201 false,
8202 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8203 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8204 ),
8205 cx,
8206 ) {
8207 let wrapped_point = snapshot.buffer_snapshot.max_point();
8208 self.seek_in_direction(
8209 &snapshot,
8210 wrapped_point,
8211 true,
8212 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8213 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8214 ),
8215 cx,
8216 );
8217 }
8218 }
8219
8220 fn seek_in_direction(
8221 &mut self,
8222 snapshot: &DisplaySnapshot,
8223 initial_point: Point,
8224 is_wrapped: bool,
8225 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8226 cx: &mut ViewContext<Editor>,
8227 ) -> bool {
8228 let display_point = initial_point.to_display_point(snapshot);
8229 let mut hunks = hunks
8230 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8231 .filter(|hunk| {
8232 if is_wrapped {
8233 true
8234 } else {
8235 !hunk.contains_display_row(display_point.row())
8236 }
8237 })
8238 .dedup();
8239
8240 if let Some(hunk) = hunks.next() {
8241 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8242 let row = hunk.start_display_row();
8243 let point = DisplayPoint::new(row, 0);
8244 s.select_display_ranges([point..point]);
8245 });
8246
8247 true
8248 } else {
8249 false
8250 }
8251 }
8252
8253 pub fn go_to_definition(
8254 &mut self,
8255 _: &GoToDefinition,
8256 cx: &mut ViewContext<Self>,
8257 ) -> Task<Result<bool>> {
8258 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8259 }
8260
8261 pub fn go_to_implementation(
8262 &mut self,
8263 _: &GoToImplementation,
8264 cx: &mut ViewContext<Self>,
8265 ) -> Task<Result<bool>> {
8266 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8267 }
8268
8269 pub fn go_to_implementation_split(
8270 &mut self,
8271 _: &GoToImplementationSplit,
8272 cx: &mut ViewContext<Self>,
8273 ) -> Task<Result<bool>> {
8274 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8275 }
8276
8277 pub fn go_to_type_definition(
8278 &mut self,
8279 _: &GoToTypeDefinition,
8280 cx: &mut ViewContext<Self>,
8281 ) -> Task<Result<bool>> {
8282 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8283 }
8284
8285 pub fn go_to_definition_split(
8286 &mut self,
8287 _: &GoToDefinitionSplit,
8288 cx: &mut ViewContext<Self>,
8289 ) -> Task<Result<bool>> {
8290 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8291 }
8292
8293 pub fn go_to_type_definition_split(
8294 &mut self,
8295 _: &GoToTypeDefinitionSplit,
8296 cx: &mut ViewContext<Self>,
8297 ) -> Task<Result<bool>> {
8298 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8299 }
8300
8301 fn go_to_definition_of_kind(
8302 &mut self,
8303 kind: GotoDefinitionKind,
8304 split: bool,
8305 cx: &mut ViewContext<Self>,
8306 ) -> Task<Result<bool>> {
8307 let Some(workspace) = self.workspace() else {
8308 return Task::ready(Ok(false));
8309 };
8310 let buffer = self.buffer.read(cx);
8311 let head = self.selections.newest::<usize>(cx).head();
8312 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8313 text_anchor
8314 } else {
8315 return Task::ready(Ok(false));
8316 };
8317
8318 let project = workspace.read(cx).project().clone();
8319 let definitions = project.update(cx, |project, cx| match kind {
8320 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8321 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8322 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8323 });
8324
8325 cx.spawn(|editor, mut cx| async move {
8326 let definitions = definitions.await?;
8327 let navigated = editor
8328 .update(&mut cx, |editor, cx| {
8329 editor.navigate_to_hover_links(
8330 Some(kind),
8331 definitions
8332 .into_iter()
8333 .filter(|location| {
8334 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8335 })
8336 .map(HoverLink::Text)
8337 .collect::<Vec<_>>(),
8338 split,
8339 cx,
8340 )
8341 })?
8342 .await?;
8343 anyhow::Ok(navigated)
8344 })
8345 }
8346
8347 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8348 let position = self.selections.newest_anchor().head();
8349 let Some((buffer, buffer_position)) =
8350 self.buffer.read(cx).text_anchor_for_position(position, cx)
8351 else {
8352 return;
8353 };
8354
8355 cx.spawn(|editor, mut cx| async move {
8356 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8357 editor.update(&mut cx, |_, cx| {
8358 cx.open_url(&url);
8359 })
8360 } else {
8361 Ok(())
8362 }
8363 })
8364 .detach();
8365 }
8366
8367 pub(crate) fn navigate_to_hover_links(
8368 &mut self,
8369 kind: Option<GotoDefinitionKind>,
8370 mut definitions: Vec<HoverLink>,
8371 split: bool,
8372 cx: &mut ViewContext<Editor>,
8373 ) -> Task<Result<bool>> {
8374 // If there is one definition, just open it directly
8375 if definitions.len() == 1 {
8376 let definition = definitions.pop().unwrap();
8377 let target_task = match definition {
8378 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8379 HoverLink::InlayHint(lsp_location, server_id) => {
8380 self.compute_target_location(lsp_location, server_id, cx)
8381 }
8382 HoverLink::Url(url) => {
8383 cx.open_url(&url);
8384 Task::ready(Ok(None))
8385 }
8386 };
8387 cx.spawn(|editor, mut cx| async move {
8388 let target = target_task.await.context("target resolution task")?;
8389 if let Some(target) = target {
8390 editor.update(&mut cx, |editor, cx| {
8391 let Some(workspace) = editor.workspace() else {
8392 return false;
8393 };
8394 let pane = workspace.read(cx).active_pane().clone();
8395
8396 let range = target.range.to_offset(target.buffer.read(cx));
8397 let range = editor.range_for_match(&range);
8398
8399 /// If select range has more than one line, we
8400 /// just point the cursor to range.start.
8401 fn check_multiline_range(
8402 buffer: &Buffer,
8403 range: Range<usize>,
8404 ) -> Range<usize> {
8405 if buffer.offset_to_point(range.start).row
8406 == buffer.offset_to_point(range.end).row
8407 {
8408 range
8409 } else {
8410 range.start..range.start
8411 }
8412 }
8413
8414 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8415 let buffer = target.buffer.read(cx);
8416 let range = check_multiline_range(buffer, range);
8417 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8418 s.select_ranges([range]);
8419 });
8420 } else {
8421 cx.window_context().defer(move |cx| {
8422 let target_editor: View<Self> =
8423 workspace.update(cx, |workspace, cx| {
8424 let pane = if split {
8425 workspace.adjacent_pane(cx)
8426 } else {
8427 workspace.active_pane().clone()
8428 };
8429
8430 workspace.open_project_item(pane, target.buffer.clone(), cx)
8431 });
8432 target_editor.update(cx, |target_editor, cx| {
8433 // When selecting a definition in a different buffer, disable the nav history
8434 // to avoid creating a history entry at the previous cursor location.
8435 pane.update(cx, |pane, _| pane.disable_history());
8436 let buffer = target.buffer.read(cx);
8437 let range = check_multiline_range(buffer, range);
8438 target_editor.change_selections(
8439 Some(Autoscroll::focused()),
8440 cx,
8441 |s| {
8442 s.select_ranges([range]);
8443 },
8444 );
8445 pane.update(cx, |pane, _| pane.enable_history());
8446 });
8447 });
8448 }
8449 true
8450 })
8451 } else {
8452 Ok(false)
8453 }
8454 })
8455 } else if !definitions.is_empty() {
8456 let replica_id = self.replica_id(cx);
8457 cx.spawn(|editor, mut cx| async move {
8458 let (title, location_tasks, workspace) = editor
8459 .update(&mut cx, |editor, cx| {
8460 let tab_kind = match kind {
8461 Some(GotoDefinitionKind::Implementation) => "Implementations",
8462 _ => "Definitions",
8463 };
8464 let title = definitions
8465 .iter()
8466 .find_map(|definition| match definition {
8467 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8468 let buffer = origin.buffer.read(cx);
8469 format!(
8470 "{} for {}",
8471 tab_kind,
8472 buffer
8473 .text_for_range(origin.range.clone())
8474 .collect::<String>()
8475 )
8476 }),
8477 HoverLink::InlayHint(_, _) => None,
8478 HoverLink::Url(_) => None,
8479 })
8480 .unwrap_or(tab_kind.to_string());
8481 let location_tasks = definitions
8482 .into_iter()
8483 .map(|definition| match definition {
8484 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8485 HoverLink::InlayHint(lsp_location, server_id) => {
8486 editor.compute_target_location(lsp_location, server_id, cx)
8487 }
8488 HoverLink::Url(_) => Task::ready(Ok(None)),
8489 })
8490 .collect::<Vec<_>>();
8491 (title, location_tasks, editor.workspace().clone())
8492 })
8493 .context("location tasks preparation")?;
8494
8495 let locations = futures::future::join_all(location_tasks)
8496 .await
8497 .into_iter()
8498 .filter_map(|location| location.transpose())
8499 .collect::<Result<_>>()
8500 .context("location tasks")?;
8501
8502 let Some(workspace) = workspace else {
8503 return Ok(false);
8504 };
8505 let opened = workspace
8506 .update(&mut cx, |workspace, cx| {
8507 Self::open_locations_in_multibuffer(
8508 workspace, locations, replica_id, title, split, cx,
8509 )
8510 })
8511 .ok();
8512
8513 anyhow::Ok(opened.is_some())
8514 })
8515 } else {
8516 Task::ready(Ok(false))
8517 }
8518 }
8519
8520 fn compute_target_location(
8521 &self,
8522 lsp_location: lsp::Location,
8523 server_id: LanguageServerId,
8524 cx: &mut ViewContext<Editor>,
8525 ) -> Task<anyhow::Result<Option<Location>>> {
8526 let Some(project) = self.project.clone() else {
8527 return Task::Ready(Some(Ok(None)));
8528 };
8529
8530 cx.spawn(move |editor, mut cx| async move {
8531 let location_task = editor.update(&mut cx, |editor, cx| {
8532 project.update(cx, |project, cx| {
8533 let language_server_name =
8534 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8535 project
8536 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8537 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8538 });
8539 language_server_name.map(|language_server_name| {
8540 project.open_local_buffer_via_lsp(
8541 lsp_location.uri.clone(),
8542 server_id,
8543 language_server_name,
8544 cx,
8545 )
8546 })
8547 })
8548 })?;
8549 let location = match location_task {
8550 Some(task) => Some({
8551 let target_buffer_handle = task.await.context("open local buffer")?;
8552 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8553 let target_start = target_buffer
8554 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8555 let target_end = target_buffer
8556 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8557 target_buffer.anchor_after(target_start)
8558 ..target_buffer.anchor_before(target_end)
8559 })?;
8560 Location {
8561 buffer: target_buffer_handle,
8562 range,
8563 }
8564 }),
8565 None => None,
8566 };
8567 Ok(location)
8568 })
8569 }
8570
8571 pub fn find_all_references(
8572 &mut self,
8573 _: &FindAllReferences,
8574 cx: &mut ViewContext<Self>,
8575 ) -> Option<Task<Result<()>>> {
8576 let multi_buffer = self.buffer.read(cx);
8577 let selection = self.selections.newest::<usize>(cx);
8578 let head = selection.head();
8579
8580 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8581 let head_anchor = multi_buffer_snapshot.anchor_at(
8582 head,
8583 if head < selection.tail() {
8584 Bias::Right
8585 } else {
8586 Bias::Left
8587 },
8588 );
8589
8590 match self
8591 .find_all_references_task_sources
8592 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8593 {
8594 Ok(_) => {
8595 log::info!(
8596 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8597 );
8598 return None;
8599 }
8600 Err(i) => {
8601 self.find_all_references_task_sources.insert(i, head_anchor);
8602 }
8603 }
8604
8605 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8606 let replica_id = self.replica_id(cx);
8607 let workspace = self.workspace()?;
8608 let project = workspace.read(cx).project().clone();
8609 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8610 Some(cx.spawn(|editor, mut cx| async move {
8611 let _cleanup = defer({
8612 let mut cx = cx.clone();
8613 move || {
8614 let _ = editor.update(&mut cx, |editor, _| {
8615 if let Ok(i) =
8616 editor
8617 .find_all_references_task_sources
8618 .binary_search_by(|anchor| {
8619 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8620 })
8621 {
8622 editor.find_all_references_task_sources.remove(i);
8623 }
8624 });
8625 }
8626 });
8627
8628 let locations = references.await?;
8629 if locations.is_empty() {
8630 return anyhow::Ok(());
8631 }
8632
8633 workspace.update(&mut cx, |workspace, cx| {
8634 let title = locations
8635 .first()
8636 .as_ref()
8637 .map(|location| {
8638 let buffer = location.buffer.read(cx);
8639 format!(
8640 "References to `{}`",
8641 buffer
8642 .text_for_range(location.range.clone())
8643 .collect::<String>()
8644 )
8645 })
8646 .unwrap();
8647 Self::open_locations_in_multibuffer(
8648 workspace, locations, replica_id, title, false, cx,
8649 );
8650 })
8651 }))
8652 }
8653
8654 /// Opens a multibuffer with the given project locations in it
8655 pub fn open_locations_in_multibuffer(
8656 workspace: &mut Workspace,
8657 mut locations: Vec<Location>,
8658 replica_id: ReplicaId,
8659 title: String,
8660 split: bool,
8661 cx: &mut ViewContext<Workspace>,
8662 ) {
8663 // If there are multiple definitions, open them in a multibuffer
8664 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8665 let mut locations = locations.into_iter().peekable();
8666 let mut ranges_to_highlight = Vec::new();
8667 let capability = workspace.project().read(cx).capability();
8668
8669 let excerpt_buffer = cx.new_model(|cx| {
8670 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8671 while let Some(location) = locations.next() {
8672 let buffer = location.buffer.read(cx);
8673 let mut ranges_for_buffer = Vec::new();
8674 let range = location.range.to_offset(buffer);
8675 ranges_for_buffer.push(range.clone());
8676
8677 while let Some(next_location) = locations.peek() {
8678 if next_location.buffer == location.buffer {
8679 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8680 locations.next();
8681 } else {
8682 break;
8683 }
8684 }
8685
8686 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8687 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8688 location.buffer.clone(),
8689 ranges_for_buffer,
8690 DEFAULT_MULTIBUFFER_CONTEXT,
8691 cx,
8692 ))
8693 }
8694
8695 multibuffer.with_title(title)
8696 });
8697
8698 let editor = cx.new_view(|cx| {
8699 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8700 });
8701 editor.update(cx, |editor, cx| {
8702 editor.highlight_background::<Self>(
8703 &ranges_to_highlight,
8704 |theme| theme.editor_highlighted_line_background,
8705 cx,
8706 );
8707 });
8708
8709 let item = Box::new(editor);
8710 let item_id = item.item_id();
8711
8712 if split {
8713 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8714 } else {
8715 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8716 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8717 pane.close_current_preview_item(cx)
8718 } else {
8719 None
8720 }
8721 });
8722 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8723 }
8724 workspace.active_pane().update(cx, |pane, cx| {
8725 pane.set_preview_item_id(Some(item_id), cx);
8726 });
8727 }
8728
8729 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8730 use language::ToOffset as _;
8731
8732 let project = self.project.clone()?;
8733 let selection = self.selections.newest_anchor().clone();
8734 let (cursor_buffer, cursor_buffer_position) = self
8735 .buffer
8736 .read(cx)
8737 .text_anchor_for_position(selection.head(), cx)?;
8738 let (tail_buffer, cursor_buffer_position_end) = self
8739 .buffer
8740 .read(cx)
8741 .text_anchor_for_position(selection.tail(), cx)?;
8742 if tail_buffer != cursor_buffer {
8743 return None;
8744 }
8745
8746 let snapshot = cursor_buffer.read(cx).snapshot();
8747 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8748 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8749 let prepare_rename = project.update(cx, |project, cx| {
8750 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8751 });
8752 drop(snapshot);
8753
8754 Some(cx.spawn(|this, mut cx| async move {
8755 let rename_range = if let Some(range) = prepare_rename.await? {
8756 Some(range)
8757 } else {
8758 this.update(&mut cx, |this, cx| {
8759 let buffer = this.buffer.read(cx).snapshot(cx);
8760 let mut buffer_highlights = this
8761 .document_highlights_for_position(selection.head(), &buffer)
8762 .filter(|highlight| {
8763 highlight.start.excerpt_id == selection.head().excerpt_id
8764 && highlight.end.excerpt_id == selection.head().excerpt_id
8765 });
8766 buffer_highlights
8767 .next()
8768 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8769 })?
8770 };
8771 if let Some(rename_range) = rename_range {
8772 this.update(&mut cx, |this, cx| {
8773 let snapshot = cursor_buffer.read(cx).snapshot();
8774 let rename_buffer_range = rename_range.to_offset(&snapshot);
8775 let cursor_offset_in_rename_range =
8776 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8777 let cursor_offset_in_rename_range_end =
8778 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8779
8780 this.take_rename(false, cx);
8781 let buffer = this.buffer.read(cx).read(cx);
8782 let cursor_offset = selection.head().to_offset(&buffer);
8783 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8784 let rename_end = rename_start + rename_buffer_range.len();
8785 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8786 let mut old_highlight_id = None;
8787 let old_name: Arc<str> = buffer
8788 .chunks(rename_start..rename_end, true)
8789 .map(|chunk| {
8790 if old_highlight_id.is_none() {
8791 old_highlight_id = chunk.syntax_highlight_id;
8792 }
8793 chunk.text
8794 })
8795 .collect::<String>()
8796 .into();
8797
8798 drop(buffer);
8799
8800 // Position the selection in the rename editor so that it matches the current selection.
8801 this.show_local_selections = false;
8802 let rename_editor = cx.new_view(|cx| {
8803 let mut editor = Editor::single_line(cx);
8804 editor.buffer.update(cx, |buffer, cx| {
8805 buffer.edit([(0..0, old_name.clone())], None, cx)
8806 });
8807 let rename_selection_range = match cursor_offset_in_rename_range
8808 .cmp(&cursor_offset_in_rename_range_end)
8809 {
8810 Ordering::Equal => {
8811 editor.select_all(&SelectAll, cx);
8812 return editor;
8813 }
8814 Ordering::Less => {
8815 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8816 }
8817 Ordering::Greater => {
8818 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8819 }
8820 };
8821 if rename_selection_range.end > old_name.len() {
8822 editor.select_all(&SelectAll, cx);
8823 } else {
8824 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8825 s.select_ranges([rename_selection_range]);
8826 });
8827 }
8828 editor
8829 });
8830
8831 let write_highlights =
8832 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8833 let read_highlights =
8834 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8835 let ranges = write_highlights
8836 .iter()
8837 .flat_map(|(_, ranges)| ranges.iter())
8838 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8839 .cloned()
8840 .collect();
8841
8842 this.highlight_text::<Rename>(
8843 ranges,
8844 HighlightStyle {
8845 fade_out: Some(0.6),
8846 ..Default::default()
8847 },
8848 cx,
8849 );
8850 let rename_focus_handle = rename_editor.focus_handle(cx);
8851 cx.focus(&rename_focus_handle);
8852 let block_id = this.insert_blocks(
8853 [BlockProperties {
8854 style: BlockStyle::Flex,
8855 position: range.start,
8856 height: 1,
8857 render: Box::new({
8858 let rename_editor = rename_editor.clone();
8859 move |cx: &mut BlockContext| {
8860 let mut text_style = cx.editor_style.text.clone();
8861 if let Some(highlight_style) = old_highlight_id
8862 .and_then(|h| h.style(&cx.editor_style.syntax))
8863 {
8864 text_style = text_style.highlight(highlight_style);
8865 }
8866 div()
8867 .pl(cx.anchor_x)
8868 .child(EditorElement::new(
8869 &rename_editor,
8870 EditorStyle {
8871 background: cx.theme().system().transparent,
8872 local_player: cx.editor_style.local_player,
8873 text: text_style,
8874 scrollbar_width: cx.editor_style.scrollbar_width,
8875 syntax: cx.editor_style.syntax.clone(),
8876 status: cx.editor_style.status.clone(),
8877 inlay_hints_style: HighlightStyle {
8878 color: Some(cx.theme().status().hint),
8879 font_weight: Some(FontWeight::BOLD),
8880 ..HighlightStyle::default()
8881 },
8882 suggestions_style: HighlightStyle {
8883 color: Some(cx.theme().status().predictive),
8884 ..HighlightStyle::default()
8885 },
8886 },
8887 ))
8888 .into_any_element()
8889 }
8890 }),
8891 disposition: BlockDisposition::Below,
8892 }],
8893 Some(Autoscroll::fit()),
8894 cx,
8895 )[0];
8896 this.pending_rename = Some(RenameState {
8897 range,
8898 old_name,
8899 editor: rename_editor,
8900 block_id,
8901 });
8902 })?;
8903 }
8904
8905 Ok(())
8906 }))
8907 }
8908
8909 pub fn confirm_rename(
8910 &mut self,
8911 _: &ConfirmRename,
8912 cx: &mut ViewContext<Self>,
8913 ) -> Option<Task<Result<()>>> {
8914 let rename = self.take_rename(false, cx)?;
8915 let workspace = self.workspace()?;
8916 let (start_buffer, start) = self
8917 .buffer
8918 .read(cx)
8919 .text_anchor_for_position(rename.range.start, cx)?;
8920 let (end_buffer, end) = self
8921 .buffer
8922 .read(cx)
8923 .text_anchor_for_position(rename.range.end, cx)?;
8924 if start_buffer != end_buffer {
8925 return None;
8926 }
8927
8928 let buffer = start_buffer;
8929 let range = start..end;
8930 let old_name = rename.old_name;
8931 let new_name = rename.editor.read(cx).text(cx);
8932
8933 let rename = workspace
8934 .read(cx)
8935 .project()
8936 .clone()
8937 .update(cx, |project, cx| {
8938 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8939 });
8940 let workspace = workspace.downgrade();
8941
8942 Some(cx.spawn(|editor, mut cx| async move {
8943 let project_transaction = rename.await?;
8944 Self::open_project_transaction(
8945 &editor,
8946 workspace,
8947 project_transaction,
8948 format!("Rename: {} → {}", old_name, new_name),
8949 cx.clone(),
8950 )
8951 .await?;
8952
8953 editor.update(&mut cx, |editor, cx| {
8954 editor.refresh_document_highlights(cx);
8955 })?;
8956 Ok(())
8957 }))
8958 }
8959
8960 fn take_rename(
8961 &mut self,
8962 moving_cursor: bool,
8963 cx: &mut ViewContext<Self>,
8964 ) -> Option<RenameState> {
8965 let rename = self.pending_rename.take()?;
8966 if rename.editor.focus_handle(cx).is_focused(cx) {
8967 cx.focus(&self.focus_handle);
8968 }
8969
8970 self.remove_blocks(
8971 [rename.block_id].into_iter().collect(),
8972 Some(Autoscroll::fit()),
8973 cx,
8974 );
8975 self.clear_highlights::<Rename>(cx);
8976 self.show_local_selections = true;
8977
8978 if moving_cursor {
8979 let rename_editor = rename.editor.read(cx);
8980 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8981
8982 // Update the selection to match the position of the selection inside
8983 // the rename editor.
8984 let snapshot = self.buffer.read(cx).read(cx);
8985 let rename_range = rename.range.to_offset(&snapshot);
8986 let cursor_in_editor = snapshot
8987 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8988 .min(rename_range.end);
8989 drop(snapshot);
8990
8991 self.change_selections(None, cx, |s| {
8992 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8993 });
8994 } else {
8995 self.refresh_document_highlights(cx);
8996 }
8997
8998 Some(rename)
8999 }
9000
9001 pub fn pending_rename(&self) -> Option<&RenameState> {
9002 self.pending_rename.as_ref()
9003 }
9004
9005 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9006 let project = match &self.project {
9007 Some(project) => project.clone(),
9008 None => return None,
9009 };
9010
9011 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9012 }
9013
9014 fn perform_format(
9015 &mut self,
9016 project: Model<Project>,
9017 trigger: FormatTrigger,
9018 cx: &mut ViewContext<Self>,
9019 ) -> Task<Result<()>> {
9020 let buffer = self.buffer().clone();
9021 let mut buffers = buffer.read(cx).all_buffers();
9022 if trigger == FormatTrigger::Save {
9023 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9024 }
9025
9026 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9027 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9028
9029 cx.spawn(|_, mut cx| async move {
9030 let transaction = futures::select_biased! {
9031 () = timeout => {
9032 log::warn!("timed out waiting for formatting");
9033 None
9034 }
9035 transaction = format.log_err().fuse() => transaction,
9036 };
9037
9038 buffer
9039 .update(&mut cx, |buffer, cx| {
9040 if let Some(transaction) = transaction {
9041 if !buffer.is_singleton() {
9042 buffer.push_transaction(&transaction.0, cx);
9043 }
9044 }
9045
9046 cx.notify();
9047 })
9048 .ok();
9049
9050 Ok(())
9051 })
9052 }
9053
9054 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9055 if let Some(project) = self.project.clone() {
9056 self.buffer.update(cx, |multi_buffer, cx| {
9057 project.update(cx, |project, cx| {
9058 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9059 });
9060 })
9061 }
9062 }
9063
9064 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9065 cx.show_character_palette();
9066 }
9067
9068 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9069 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9070 let buffer = self.buffer.read(cx).snapshot(cx);
9071 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9072 let is_valid = buffer
9073 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9074 .any(|entry| {
9075 entry.diagnostic.is_primary
9076 && !entry.range.is_empty()
9077 && entry.range.start == primary_range_start
9078 && entry.diagnostic.message == active_diagnostics.primary_message
9079 });
9080
9081 if is_valid != active_diagnostics.is_valid {
9082 active_diagnostics.is_valid = is_valid;
9083 let mut new_styles = HashMap::default();
9084 for (block_id, diagnostic) in &active_diagnostics.blocks {
9085 new_styles.insert(
9086 *block_id,
9087 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9088 );
9089 }
9090 self.display_map
9091 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9092 }
9093 }
9094 }
9095
9096 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9097 self.dismiss_diagnostics(cx);
9098 let snapshot = self.snapshot(cx);
9099 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9100 let buffer = self.buffer.read(cx).snapshot(cx);
9101
9102 let mut primary_range = None;
9103 let mut primary_message = None;
9104 let mut group_end = Point::zero();
9105 let diagnostic_group = buffer
9106 .diagnostic_group::<MultiBufferPoint>(group_id)
9107 .filter_map(|entry| {
9108 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9109 && (entry.range.start.row == entry.range.end.row
9110 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9111 {
9112 return None;
9113 }
9114 if entry.range.end > group_end {
9115 group_end = entry.range.end;
9116 }
9117 if entry.diagnostic.is_primary {
9118 primary_range = Some(entry.range.clone());
9119 primary_message = Some(entry.diagnostic.message.clone());
9120 }
9121 Some(entry)
9122 })
9123 .collect::<Vec<_>>();
9124 let primary_range = primary_range?;
9125 let primary_message = primary_message?;
9126 let primary_range =
9127 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9128
9129 let blocks = display_map
9130 .insert_blocks(
9131 diagnostic_group.iter().map(|entry| {
9132 let diagnostic = entry.diagnostic.clone();
9133 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9134 BlockProperties {
9135 style: BlockStyle::Fixed,
9136 position: buffer.anchor_after(entry.range.start),
9137 height: message_height,
9138 render: diagnostic_block_renderer(diagnostic, true),
9139 disposition: BlockDisposition::Below,
9140 }
9141 }),
9142 cx,
9143 )
9144 .into_iter()
9145 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9146 .collect();
9147
9148 Some(ActiveDiagnosticGroup {
9149 primary_range,
9150 primary_message,
9151 group_id,
9152 blocks,
9153 is_valid: true,
9154 })
9155 });
9156 self.active_diagnostics.is_some()
9157 }
9158
9159 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9160 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9161 self.display_map.update(cx, |display_map, cx| {
9162 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9163 });
9164 cx.notify();
9165 }
9166 }
9167
9168 pub fn set_selections_from_remote(
9169 &mut self,
9170 selections: Vec<Selection<Anchor>>,
9171 pending_selection: Option<Selection<Anchor>>,
9172 cx: &mut ViewContext<Self>,
9173 ) {
9174 let old_cursor_position = self.selections.newest_anchor().head();
9175 self.selections.change_with(cx, |s| {
9176 s.select_anchors(selections);
9177 if let Some(pending_selection) = pending_selection {
9178 s.set_pending(pending_selection, SelectMode::Character);
9179 } else {
9180 s.clear_pending();
9181 }
9182 });
9183 self.selections_did_change(false, &old_cursor_position, true, cx);
9184 }
9185
9186 fn push_to_selection_history(&mut self) {
9187 self.selection_history.push(SelectionHistoryEntry {
9188 selections: self.selections.disjoint_anchors(),
9189 select_next_state: self.select_next_state.clone(),
9190 select_prev_state: self.select_prev_state.clone(),
9191 add_selections_state: self.add_selections_state.clone(),
9192 });
9193 }
9194
9195 pub fn transact(
9196 &mut self,
9197 cx: &mut ViewContext<Self>,
9198 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9199 ) -> Option<TransactionId> {
9200 self.start_transaction_at(Instant::now(), cx);
9201 update(self, cx);
9202 self.end_transaction_at(Instant::now(), cx)
9203 }
9204
9205 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9206 self.end_selection(cx);
9207 if let Some(tx_id) = self
9208 .buffer
9209 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9210 {
9211 self.selection_history
9212 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9213 cx.emit(EditorEvent::TransactionBegun {
9214 transaction_id: tx_id,
9215 })
9216 }
9217 }
9218
9219 fn end_transaction_at(
9220 &mut self,
9221 now: Instant,
9222 cx: &mut ViewContext<Self>,
9223 ) -> Option<TransactionId> {
9224 if let Some(tx_id) = self
9225 .buffer
9226 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9227 {
9228 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9229 *end_selections = Some(self.selections.disjoint_anchors());
9230 } else {
9231 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9232 }
9233
9234 cx.emit(EditorEvent::Edited);
9235 Some(tx_id)
9236 } else {
9237 None
9238 }
9239 }
9240
9241 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9242 let mut fold_ranges = Vec::new();
9243
9244 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9245
9246 let selections = self.selections.all_adjusted(cx);
9247 for selection in selections {
9248 let range = selection.range().sorted();
9249 let buffer_start_row = range.start.row;
9250
9251 for row in (0..=range.end.row).rev() {
9252 let fold_range = display_map.foldable_range(MultiBufferRow(row));
9253
9254 if let Some(fold_range) = fold_range {
9255 if fold_range.end.row >= buffer_start_row {
9256 fold_ranges.push(fold_range);
9257 if row <= range.start.row {
9258 break;
9259 }
9260 }
9261 }
9262 }
9263 }
9264
9265 self.fold_ranges(fold_ranges, true, cx);
9266 }
9267
9268 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9269 let buffer_row = fold_at.buffer_row;
9270 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9271
9272 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9273 let autoscroll = self
9274 .selections
9275 .all::<Point>(cx)
9276 .iter()
9277 .any(|selection| fold_range.overlaps(&selection.range()));
9278
9279 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9280 }
9281 }
9282
9283 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9284 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9285 let buffer = &display_map.buffer_snapshot;
9286 let selections = self.selections.all::<Point>(cx);
9287 let ranges = selections
9288 .iter()
9289 .map(|s| {
9290 let range = s.display_range(&display_map).sorted();
9291 let mut start = range.start.to_point(&display_map);
9292 let mut end = range.end.to_point(&display_map);
9293 start.column = 0;
9294 end.column = buffer.line_len(MultiBufferRow(end.row));
9295 start..end
9296 })
9297 .collect::<Vec<_>>();
9298
9299 self.unfold_ranges(ranges, true, true, cx);
9300 }
9301
9302 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9303 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9304
9305 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9306 ..Point::new(
9307 unfold_at.buffer_row.0,
9308 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9309 );
9310
9311 let autoscroll = self
9312 .selections
9313 .all::<Point>(cx)
9314 .iter()
9315 .any(|selection| selection.range().overlaps(&intersection_range));
9316
9317 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9318 }
9319
9320 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9321 let selections = self.selections.all::<Point>(cx);
9322 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9323 let line_mode = self.selections.line_mode;
9324 let ranges = selections.into_iter().map(|s| {
9325 if line_mode {
9326 let start = Point::new(s.start.row, 0);
9327 let end = Point::new(
9328 s.end.row,
9329 display_map
9330 .buffer_snapshot
9331 .line_len(MultiBufferRow(s.end.row)),
9332 );
9333 start..end
9334 } else {
9335 s.start..s.end
9336 }
9337 });
9338 self.fold_ranges(ranges, true, cx);
9339 }
9340
9341 pub fn fold_ranges<T: ToOffset + Clone>(
9342 &mut self,
9343 ranges: impl IntoIterator<Item = Range<T>>,
9344 auto_scroll: bool,
9345 cx: &mut ViewContext<Self>,
9346 ) {
9347 let mut fold_ranges = Vec::new();
9348 let mut buffers_affected = HashMap::default();
9349 let multi_buffer = self.buffer().read(cx);
9350 for range in ranges {
9351 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9352 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9353 };
9354 fold_ranges.push(range);
9355 }
9356
9357 let mut ranges = fold_ranges.into_iter().peekable();
9358 if ranges.peek().is_some() {
9359 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9360
9361 if auto_scroll {
9362 self.request_autoscroll(Autoscroll::fit(), cx);
9363 }
9364
9365 for buffer in buffers_affected.into_values() {
9366 self.sync_expanded_diff_hunks(buffer, cx);
9367 }
9368
9369 cx.notify();
9370
9371 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9372 // Clear diagnostics block when folding a range that contains it.
9373 let snapshot = self.snapshot(cx);
9374 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9375 drop(snapshot);
9376 self.active_diagnostics = Some(active_diagnostics);
9377 self.dismiss_diagnostics(cx);
9378 } else {
9379 self.active_diagnostics = Some(active_diagnostics);
9380 }
9381 }
9382
9383 self.scrollbar_marker_state.dirty = true;
9384 }
9385 }
9386
9387 pub fn unfold_ranges<T: ToOffset + Clone>(
9388 &mut self,
9389 ranges: impl IntoIterator<Item = Range<T>>,
9390 inclusive: bool,
9391 auto_scroll: bool,
9392 cx: &mut ViewContext<Self>,
9393 ) {
9394 let mut unfold_ranges = Vec::new();
9395 let mut buffers_affected = HashMap::default();
9396 let multi_buffer = self.buffer().read(cx);
9397 for range in ranges {
9398 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9399 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9400 };
9401 unfold_ranges.push(range);
9402 }
9403
9404 let mut ranges = unfold_ranges.into_iter().peekable();
9405 if ranges.peek().is_some() {
9406 self.display_map
9407 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9408 if auto_scroll {
9409 self.request_autoscroll(Autoscroll::fit(), cx);
9410 }
9411
9412 for buffer in buffers_affected.into_values() {
9413 self.sync_expanded_diff_hunks(buffer, cx);
9414 }
9415
9416 cx.notify();
9417 self.scrollbar_marker_state.dirty = true;
9418 }
9419 }
9420
9421 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9422 if hovered != self.gutter_hovered {
9423 self.gutter_hovered = hovered;
9424 cx.notify();
9425 }
9426 }
9427
9428 pub fn insert_blocks(
9429 &mut self,
9430 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9431 autoscroll: Option<Autoscroll>,
9432 cx: &mut ViewContext<Self>,
9433 ) -> Vec<BlockId> {
9434 let blocks = self
9435 .display_map
9436 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9437 if let Some(autoscroll) = autoscroll {
9438 self.request_autoscroll(autoscroll, cx);
9439 }
9440 blocks
9441 }
9442
9443 pub fn replace_blocks(
9444 &mut self,
9445 blocks: HashMap<BlockId, RenderBlock>,
9446 autoscroll: Option<Autoscroll>,
9447 cx: &mut ViewContext<Self>,
9448 ) {
9449 self.display_map
9450 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9451 if let Some(autoscroll) = autoscroll {
9452 self.request_autoscroll(autoscroll, cx);
9453 }
9454 }
9455
9456 pub fn remove_blocks(
9457 &mut self,
9458 block_ids: HashSet<BlockId>,
9459 autoscroll: Option<Autoscroll>,
9460 cx: &mut ViewContext<Self>,
9461 ) {
9462 self.display_map.update(cx, |display_map, cx| {
9463 display_map.remove_blocks(block_ids, cx)
9464 });
9465 if let Some(autoscroll) = autoscroll {
9466 self.request_autoscroll(autoscroll, cx);
9467 }
9468 }
9469
9470 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9471 self.display_map
9472 .update(cx, |map, cx| map.snapshot(cx))
9473 .longest_row()
9474 }
9475
9476 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9477 self.display_map
9478 .update(cx, |map, cx| map.snapshot(cx))
9479 .max_point()
9480 }
9481
9482 pub fn text(&self, cx: &AppContext) -> String {
9483 self.buffer.read(cx).read(cx).text()
9484 }
9485
9486 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9487 let text = self.text(cx);
9488 let text = text.trim();
9489
9490 if text.is_empty() {
9491 return None;
9492 }
9493
9494 Some(text.to_string())
9495 }
9496
9497 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9498 self.transact(cx, |this, cx| {
9499 this.buffer
9500 .read(cx)
9501 .as_singleton()
9502 .expect("you can only call set_text on editors for singleton buffers")
9503 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9504 });
9505 }
9506
9507 pub fn display_text(&self, cx: &mut AppContext) -> String {
9508 self.display_map
9509 .update(cx, |map, cx| map.snapshot(cx))
9510 .text()
9511 }
9512
9513 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9514 let mut wrap_guides = smallvec::smallvec![];
9515
9516 if self.show_wrap_guides == Some(false) {
9517 return wrap_guides;
9518 }
9519
9520 let settings = self.buffer.read(cx).settings_at(0, cx);
9521 if settings.show_wrap_guides {
9522 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9523 wrap_guides.push((soft_wrap as usize, true));
9524 }
9525 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9526 }
9527
9528 wrap_guides
9529 }
9530
9531 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9532 let settings = self.buffer.read(cx).settings_at(0, cx);
9533 let mode = self
9534 .soft_wrap_mode_override
9535 .unwrap_or_else(|| settings.soft_wrap);
9536 match mode {
9537 language_settings::SoftWrap::None => SoftWrap::None,
9538 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9539 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9540 language_settings::SoftWrap::PreferredLineLength => {
9541 SoftWrap::Column(settings.preferred_line_length)
9542 }
9543 }
9544 }
9545
9546 pub fn set_soft_wrap_mode(
9547 &mut self,
9548 mode: language_settings::SoftWrap,
9549 cx: &mut ViewContext<Self>,
9550 ) {
9551 self.soft_wrap_mode_override = Some(mode);
9552 cx.notify();
9553 }
9554
9555 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9556 let rem_size = cx.rem_size();
9557 self.display_map.update(cx, |map, cx| {
9558 map.set_font(
9559 style.text.font(),
9560 style.text.font_size.to_pixels(rem_size),
9561 cx,
9562 )
9563 });
9564 self.style = Some(style);
9565 }
9566
9567 pub fn style(&self) -> Option<&EditorStyle> {
9568 self.style.as_ref()
9569 }
9570
9571 // Called by the element. This method is not designed to be called outside of the editor
9572 // element's layout code because it does not notify when rewrapping is computed synchronously.
9573 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9574 self.display_map
9575 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9576 }
9577
9578 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9579 if self.soft_wrap_mode_override.is_some() {
9580 self.soft_wrap_mode_override.take();
9581 } else {
9582 let soft_wrap = match self.soft_wrap_mode(cx) {
9583 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9584 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9585 language_settings::SoftWrap::PreferLine
9586 }
9587 };
9588 self.soft_wrap_mode_override = Some(soft_wrap);
9589 }
9590 cx.notify();
9591 }
9592
9593 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9594 let mut editor_settings = EditorSettings::get_global(cx).clone();
9595 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9596 EditorSettings::override_global(editor_settings, cx);
9597 }
9598
9599 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9600 self.show_gutter = show_gutter;
9601 cx.notify();
9602 }
9603
9604 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9605 self.show_wrap_guides = Some(show_gutter);
9606 cx.notify();
9607 }
9608
9609 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9610 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9611 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9612 cx.reveal_path(&file.abs_path(cx));
9613 }
9614 }
9615 }
9616
9617 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9618 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9619 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9620 if let Some(path) = file.abs_path(cx).to_str() {
9621 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9622 }
9623 }
9624 }
9625 }
9626
9627 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9628 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9629 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9630 if let Some(path) = file.path().to_str() {
9631 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9632 }
9633 }
9634 }
9635 }
9636
9637 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9638 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9639
9640 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9641 self.start_git_blame(true, cx);
9642 }
9643
9644 cx.notify();
9645 }
9646
9647 pub fn toggle_git_blame_inline(
9648 &mut self,
9649 _: &ToggleGitBlameInline,
9650 cx: &mut ViewContext<Self>,
9651 ) {
9652 self.toggle_git_blame_inline_internal(true, cx);
9653 cx.notify();
9654 }
9655
9656 pub fn git_blame_inline_enabled(&self) -> bool {
9657 self.git_blame_inline_enabled
9658 }
9659
9660 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9661 if let Some(project) = self.project.as_ref() {
9662 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9663 return;
9664 };
9665
9666 if buffer.read(cx).file().is_none() {
9667 return;
9668 }
9669
9670 let focused = self.focus_handle(cx).contains_focused(cx);
9671
9672 let project = project.clone();
9673 let blame =
9674 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9675 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9676 self.blame = Some(blame);
9677 }
9678 }
9679
9680 fn toggle_git_blame_inline_internal(
9681 &mut self,
9682 user_triggered: bool,
9683 cx: &mut ViewContext<Self>,
9684 ) {
9685 if self.git_blame_inline_enabled {
9686 self.git_blame_inline_enabled = false;
9687 self.show_git_blame_inline = false;
9688 self.show_git_blame_inline_delay_task.take();
9689 } else {
9690 self.git_blame_inline_enabled = true;
9691 self.start_git_blame_inline(user_triggered, cx);
9692 }
9693
9694 cx.notify();
9695 }
9696
9697 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9698 self.start_git_blame(user_triggered, cx);
9699
9700 if ProjectSettings::get_global(cx)
9701 .git
9702 .inline_blame_delay()
9703 .is_some()
9704 {
9705 self.start_inline_blame_timer(cx);
9706 } else {
9707 self.show_git_blame_inline = true
9708 }
9709 }
9710
9711 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9712 self.blame.as_ref()
9713 }
9714
9715 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9716 self.show_git_blame_gutter && self.has_blame_entries(cx)
9717 }
9718
9719 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9720 self.show_git_blame_inline
9721 && self.focus_handle.is_focused(cx)
9722 && !self.newest_selection_head_on_empty_line(cx)
9723 && self.has_blame_entries(cx)
9724 }
9725
9726 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9727 self.blame()
9728 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9729 }
9730
9731 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9732 let cursor_anchor = self.selections.newest_anchor().head();
9733
9734 let snapshot = self.buffer.read(cx).snapshot(cx);
9735 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9736
9737 snapshot.line_len(buffer_row) == 0
9738 }
9739
9740 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9741 let (path, repo) = maybe!({
9742 let project_handle = self.project.as_ref()?.clone();
9743 let project = project_handle.read(cx);
9744 let buffer = self.buffer().read(cx).as_singleton()?;
9745 let path = buffer
9746 .read(cx)
9747 .file()?
9748 .as_local()?
9749 .path()
9750 .to_str()?
9751 .to_string();
9752 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9753 Some((path, repo))
9754 })
9755 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9756
9757 const REMOTE_NAME: &str = "origin";
9758 let origin_url = repo
9759 .lock()
9760 .remote_url(REMOTE_NAME)
9761 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9762 let sha = repo
9763 .lock()
9764 .head_sha()
9765 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9766 let selections = self.selections.all::<Point>(cx);
9767 let selection = selections.iter().peekable().next();
9768
9769 let (provider, remote) =
9770 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9771 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9772
9773 Ok(provider.build_permalink(
9774 remote,
9775 BuildPermalinkParams {
9776 sha: &sha,
9777 path: &path,
9778 selection: selection.map(|selection| {
9779 let range = selection.range();
9780 let start = range.start.row;
9781 let end = range.end.row;
9782 start..end
9783 }),
9784 },
9785 ))
9786 }
9787
9788 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9789 let permalink = self.get_permalink_to_line(cx);
9790
9791 match permalink {
9792 Ok(permalink) => {
9793 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9794 }
9795 Err(err) => {
9796 let message = format!("Failed to copy permalink: {err}");
9797
9798 Err::<(), anyhow::Error>(err).log_err();
9799
9800 if let Some(workspace) = self.workspace() {
9801 workspace.update(cx, |workspace, cx| {
9802 struct CopyPermalinkToLine;
9803
9804 workspace.show_toast(
9805 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9806 cx,
9807 )
9808 })
9809 }
9810 }
9811 }
9812 }
9813
9814 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9815 let permalink = self.get_permalink_to_line(cx);
9816
9817 match permalink {
9818 Ok(permalink) => {
9819 cx.open_url(permalink.as_ref());
9820 }
9821 Err(err) => {
9822 let message = format!("Failed to open permalink: {err}");
9823
9824 Err::<(), anyhow::Error>(err).log_err();
9825
9826 if let Some(workspace) = self.workspace() {
9827 workspace.update(cx, |workspace, cx| {
9828 struct OpenPermalinkToLine;
9829
9830 workspace.show_toast(
9831 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9832 cx,
9833 )
9834 })
9835 }
9836 }
9837 }
9838 }
9839
9840 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9841 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9842 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9843 pub fn highlight_rows<T: 'static>(
9844 &mut self,
9845 rows: RangeInclusive<Anchor>,
9846 color: Option<Hsla>,
9847 should_autoscroll: bool,
9848 cx: &mut ViewContext<Self>,
9849 ) {
9850 let snapshot = self.buffer().read(cx).snapshot(cx);
9851 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
9852 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
9853 highlight
9854 .range
9855 .start()
9856 .cmp(&rows.start(), &snapshot)
9857 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
9858 });
9859 match (color, existing_highlight_index) {
9860 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
9861 ix,
9862 RowHighlight {
9863 index: post_inc(&mut self.highlight_order),
9864 range: rows,
9865 should_autoscroll,
9866 color,
9867 },
9868 ),
9869 (None, Ok(i)) => {
9870 row_highlights.remove(i);
9871 }
9872 }
9873 }
9874
9875 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9876 pub fn clear_row_highlights<T: 'static>(&mut self) {
9877 self.highlighted_rows.remove(&TypeId::of::<T>());
9878 }
9879
9880 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9881 pub fn highlighted_rows<T: 'static>(
9882 &self,
9883 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9884 Some(
9885 self.highlighted_rows
9886 .get(&TypeId::of::<T>())?
9887 .iter()
9888 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
9889 )
9890 }
9891
9892 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9893 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9894 /// Allows to ignore certain kinds of highlights.
9895 pub fn highlighted_display_rows(
9896 &mut self,
9897 cx: &mut WindowContext,
9898 ) -> BTreeMap<DisplayRow, Hsla> {
9899 let snapshot = self.snapshot(cx);
9900 let mut used_highlight_orders = HashMap::default();
9901 self.highlighted_rows
9902 .iter()
9903 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9904 .fold(
9905 BTreeMap::<DisplayRow, Hsla>::new(),
9906 |mut unique_rows, highlight| {
9907 let start_row = highlight.range.start().to_display_point(&snapshot).row();
9908 let end_row = highlight.range.end().to_display_point(&snapshot).row();
9909 for row in start_row.0..=end_row.0 {
9910 let used_index =
9911 used_highlight_orders.entry(row).or_insert(highlight.index);
9912 if highlight.index >= *used_index {
9913 *used_index = highlight.index;
9914 match highlight.color {
9915 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
9916 None => unique_rows.remove(&DisplayRow(row)),
9917 };
9918 }
9919 }
9920 unique_rows
9921 },
9922 )
9923 }
9924
9925 pub fn highlighted_display_row_for_autoscroll(
9926 &self,
9927 snapshot: &DisplaySnapshot,
9928 ) -> Option<DisplayRow> {
9929 self.highlighted_rows
9930 .values()
9931 .flat_map(|highlighted_rows| highlighted_rows.iter())
9932 .filter_map(|highlight| {
9933 if highlight.color.is_none() || !highlight.should_autoscroll {
9934 return None;
9935 }
9936 Some(highlight.range.start().to_display_point(&snapshot).row())
9937 })
9938 .min()
9939 }
9940
9941 pub fn set_search_within_ranges(
9942 &mut self,
9943 ranges: &[Range<Anchor>],
9944 cx: &mut ViewContext<Self>,
9945 ) {
9946 self.highlight_background::<SearchWithinRange>(
9947 ranges,
9948 |colors| colors.editor_document_highlight_read_background,
9949 cx,
9950 )
9951 }
9952
9953 pub fn highlight_background<T: 'static>(
9954 &mut self,
9955 ranges: &[Range<Anchor>],
9956 color_fetcher: fn(&ThemeColors) -> Hsla,
9957 cx: &mut ViewContext<Self>,
9958 ) {
9959 let snapshot = self.snapshot(cx);
9960 // this is to try and catch a panic sooner
9961 for range in ranges {
9962 snapshot
9963 .buffer_snapshot
9964 .summary_for_anchor::<usize>(&range.start);
9965 snapshot
9966 .buffer_snapshot
9967 .summary_for_anchor::<usize>(&range.end);
9968 }
9969
9970 self.background_highlights
9971 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9972 self.scrollbar_marker_state.dirty = true;
9973 cx.notify();
9974 }
9975
9976 pub fn clear_background_highlights<T: 'static>(
9977 &mut self,
9978 cx: &mut ViewContext<Self>,
9979 ) -> Option<BackgroundHighlight> {
9980 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9981 if !text_highlights.1.is_empty() {
9982 self.scrollbar_marker_state.dirty = true;
9983 cx.notify();
9984 }
9985 Some(text_highlights)
9986 }
9987
9988 #[cfg(feature = "test-support")]
9989 pub fn all_text_background_highlights(
9990 &mut self,
9991 cx: &mut ViewContext<Self>,
9992 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9993 let snapshot = self.snapshot(cx);
9994 let buffer = &snapshot.buffer_snapshot;
9995 let start = buffer.anchor_before(0);
9996 let end = buffer.anchor_after(buffer.len());
9997 let theme = cx.theme().colors();
9998 self.background_highlights_in_range(start..end, &snapshot, theme)
9999 }
10000
10001 fn document_highlights_for_position<'a>(
10002 &'a self,
10003 position: Anchor,
10004 buffer: &'a MultiBufferSnapshot,
10005 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10006 let read_highlights = self
10007 .background_highlights
10008 .get(&TypeId::of::<DocumentHighlightRead>())
10009 .map(|h| &h.1);
10010 let write_highlights = self
10011 .background_highlights
10012 .get(&TypeId::of::<DocumentHighlightWrite>())
10013 .map(|h| &h.1);
10014 let left_position = position.bias_left(buffer);
10015 let right_position = position.bias_right(buffer);
10016 read_highlights
10017 .into_iter()
10018 .chain(write_highlights)
10019 .flat_map(move |ranges| {
10020 let start_ix = match ranges.binary_search_by(|probe| {
10021 let cmp = probe.end.cmp(&left_position, buffer);
10022 if cmp.is_ge() {
10023 Ordering::Greater
10024 } else {
10025 Ordering::Less
10026 }
10027 }) {
10028 Ok(i) | Err(i) => i,
10029 };
10030
10031 ranges[start_ix..]
10032 .iter()
10033 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10034 })
10035 }
10036
10037 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10038 self.background_highlights
10039 .get(&TypeId::of::<T>())
10040 .map_or(false, |(_, highlights)| !highlights.is_empty())
10041 }
10042
10043 pub fn background_highlights_in_range(
10044 &self,
10045 search_range: Range<Anchor>,
10046 display_snapshot: &DisplaySnapshot,
10047 theme: &ThemeColors,
10048 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10049 let mut results = Vec::new();
10050 for (color_fetcher, ranges) in self.background_highlights.values() {
10051 let color = color_fetcher(theme);
10052 let start_ix = match ranges.binary_search_by(|probe| {
10053 let cmp = probe
10054 .end
10055 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10056 if cmp.is_gt() {
10057 Ordering::Greater
10058 } else {
10059 Ordering::Less
10060 }
10061 }) {
10062 Ok(i) | Err(i) => i,
10063 };
10064 for range in &ranges[start_ix..] {
10065 if range
10066 .start
10067 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10068 .is_ge()
10069 {
10070 break;
10071 }
10072
10073 let start = range.start.to_display_point(&display_snapshot);
10074 let end = range.end.to_display_point(&display_snapshot);
10075 results.push((start..end, color))
10076 }
10077 }
10078 results
10079 }
10080
10081 pub fn background_highlight_row_ranges<T: 'static>(
10082 &self,
10083 search_range: Range<Anchor>,
10084 display_snapshot: &DisplaySnapshot,
10085 count: usize,
10086 ) -> Vec<RangeInclusive<DisplayPoint>> {
10087 let mut results = Vec::new();
10088 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10089 return vec![];
10090 };
10091
10092 let start_ix = match ranges.binary_search_by(|probe| {
10093 let cmp = probe
10094 .end
10095 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10096 if cmp.is_gt() {
10097 Ordering::Greater
10098 } else {
10099 Ordering::Less
10100 }
10101 }) {
10102 Ok(i) | Err(i) => i,
10103 };
10104 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10105 if let (Some(start_display), Some(end_display)) = (start, end) {
10106 results.push(
10107 start_display.to_display_point(display_snapshot)
10108 ..=end_display.to_display_point(display_snapshot),
10109 );
10110 }
10111 };
10112 let mut start_row: Option<Point> = None;
10113 let mut end_row: Option<Point> = None;
10114 if ranges.len() > count {
10115 return Vec::new();
10116 }
10117 for range in &ranges[start_ix..] {
10118 if range
10119 .start
10120 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10121 .is_ge()
10122 {
10123 break;
10124 }
10125 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10126 if let Some(current_row) = &end_row {
10127 if end.row == current_row.row {
10128 continue;
10129 }
10130 }
10131 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10132 if start_row.is_none() {
10133 assert_eq!(end_row, None);
10134 start_row = Some(start);
10135 end_row = Some(end);
10136 continue;
10137 }
10138 if let Some(current_end) = end_row.as_mut() {
10139 if start.row > current_end.row + 1 {
10140 push_region(start_row, end_row);
10141 start_row = Some(start);
10142 end_row = Some(end);
10143 } else {
10144 // Merge two hunks.
10145 *current_end = end;
10146 }
10147 } else {
10148 unreachable!();
10149 }
10150 }
10151 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10152 push_region(start_row, end_row);
10153 results
10154 }
10155
10156 /// Get the text ranges corresponding to the redaction query
10157 pub fn redacted_ranges(
10158 &self,
10159 search_range: Range<Anchor>,
10160 display_snapshot: &DisplaySnapshot,
10161 cx: &WindowContext,
10162 ) -> Vec<Range<DisplayPoint>> {
10163 display_snapshot
10164 .buffer_snapshot
10165 .redacted_ranges(search_range, |file| {
10166 if let Some(file) = file {
10167 file.is_private()
10168 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10169 } else {
10170 false
10171 }
10172 })
10173 .map(|range| {
10174 range.start.to_display_point(display_snapshot)
10175 ..range.end.to_display_point(display_snapshot)
10176 })
10177 .collect()
10178 }
10179
10180 pub fn highlight_text<T: 'static>(
10181 &mut self,
10182 ranges: Vec<Range<Anchor>>,
10183 style: HighlightStyle,
10184 cx: &mut ViewContext<Self>,
10185 ) {
10186 self.display_map.update(cx, |map, _| {
10187 map.highlight_text(TypeId::of::<T>(), ranges, style)
10188 });
10189 cx.notify();
10190 }
10191
10192 pub(crate) fn highlight_inlays<T: 'static>(
10193 &mut self,
10194 highlights: Vec<InlayHighlight>,
10195 style: HighlightStyle,
10196 cx: &mut ViewContext<Self>,
10197 ) {
10198 self.display_map.update(cx, |map, _| {
10199 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10200 });
10201 cx.notify();
10202 }
10203
10204 pub fn text_highlights<'a, T: 'static>(
10205 &'a self,
10206 cx: &'a AppContext,
10207 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10208 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10209 }
10210
10211 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10212 let cleared = self
10213 .display_map
10214 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10215 if cleared {
10216 cx.notify();
10217 }
10218 }
10219
10220 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10221 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10222 && self.focus_handle.is_focused(cx)
10223 }
10224
10225 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10226 cx.notify();
10227 }
10228
10229 fn on_buffer_event(
10230 &mut self,
10231 multibuffer: Model<MultiBuffer>,
10232 event: &multi_buffer::Event,
10233 cx: &mut ViewContext<Self>,
10234 ) {
10235 match event {
10236 multi_buffer::Event::Edited {
10237 singleton_buffer_edited,
10238 } => {
10239 self.scrollbar_marker_state.dirty = true;
10240 self.refresh_active_diagnostics(cx);
10241 self.refresh_code_actions(cx);
10242 if self.has_active_inline_completion(cx) {
10243 self.update_visible_inline_completion(cx);
10244 }
10245 cx.emit(EditorEvent::BufferEdited);
10246 cx.emit(SearchEvent::MatchesInvalidated);
10247
10248 if *singleton_buffer_edited {
10249 if let Some(project) = &self.project {
10250 let project = project.read(cx);
10251 let languages_affected = multibuffer
10252 .read(cx)
10253 .all_buffers()
10254 .into_iter()
10255 .filter_map(|buffer| {
10256 let buffer = buffer.read(cx);
10257 let language = buffer.language()?;
10258 if project.is_local()
10259 && project.language_servers_for_buffer(buffer, cx).count() == 0
10260 {
10261 None
10262 } else {
10263 Some(language)
10264 }
10265 })
10266 .cloned()
10267 .collect::<HashSet<_>>();
10268 if !languages_affected.is_empty() {
10269 self.refresh_inlay_hints(
10270 InlayHintRefreshReason::BufferEdited(languages_affected),
10271 cx,
10272 );
10273 }
10274 }
10275 }
10276
10277 let Some(project) = &self.project else { return };
10278 let telemetry = project.read(cx).client().telemetry().clone();
10279 telemetry.log_edit_event("editor");
10280 }
10281 multi_buffer::Event::ExcerptsAdded {
10282 buffer,
10283 predecessor,
10284 excerpts,
10285 } => {
10286 self.tasks_update_task = Some(self.refresh_runnables(cx));
10287 cx.emit(EditorEvent::ExcerptsAdded {
10288 buffer: buffer.clone(),
10289 predecessor: *predecessor,
10290 excerpts: excerpts.clone(),
10291 });
10292 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10293 }
10294 multi_buffer::Event::ExcerptsRemoved { ids } => {
10295 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10296 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10297 }
10298 multi_buffer::Event::Reparsed => {
10299 self.tasks_update_task = Some(self.refresh_runnables(cx));
10300
10301 cx.emit(EditorEvent::Reparsed);
10302 }
10303 multi_buffer::Event::LanguageChanged => {
10304 cx.emit(EditorEvent::Reparsed);
10305 cx.notify();
10306 }
10307 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10308 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10309 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10310 cx.emit(EditorEvent::TitleChanged)
10311 }
10312 multi_buffer::Event::DiffBaseChanged => {
10313 self.scrollbar_marker_state.dirty = true;
10314 cx.emit(EditorEvent::DiffBaseChanged);
10315 cx.notify();
10316 }
10317 multi_buffer::Event::DiffUpdated { buffer } => {
10318 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10319 cx.notify();
10320 }
10321 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10322 multi_buffer::Event::DiagnosticsUpdated => {
10323 self.refresh_active_diagnostics(cx);
10324 self.scrollbar_marker_state.dirty = true;
10325 cx.notify();
10326 }
10327 _ => {}
10328 };
10329 }
10330
10331 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10332 cx.notify();
10333 }
10334
10335 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10336 self.refresh_inline_completion(true, cx);
10337 self.refresh_inlay_hints(
10338 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10339 self.selections.newest_anchor().head(),
10340 &self.buffer.read(cx).snapshot(cx),
10341 cx,
10342 )),
10343 cx,
10344 );
10345 let editor_settings = EditorSettings::get_global(cx);
10346 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10347 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10348 self.current_line_highlight = editor_settings.current_line_highlight;
10349
10350 if self.mode == EditorMode::Full {
10351 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10352 if self.git_blame_inline_enabled != inline_blame_enabled {
10353 self.toggle_git_blame_inline_internal(false, cx);
10354 }
10355 }
10356
10357 cx.notify();
10358 }
10359
10360 pub fn set_searchable(&mut self, searchable: bool) {
10361 self.searchable = searchable;
10362 }
10363
10364 pub fn searchable(&self) -> bool {
10365 self.searchable
10366 }
10367
10368 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10369 self.open_excerpts_common(true, cx)
10370 }
10371
10372 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10373 self.open_excerpts_common(false, cx)
10374 }
10375
10376 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10377 let buffer = self.buffer.read(cx);
10378 if buffer.is_singleton() {
10379 cx.propagate();
10380 return;
10381 }
10382
10383 let Some(workspace) = self.workspace() else {
10384 cx.propagate();
10385 return;
10386 };
10387
10388 let mut new_selections_by_buffer = HashMap::default();
10389 for selection in self.selections.all::<usize>(cx) {
10390 for (buffer, mut range, _) in
10391 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10392 {
10393 if selection.reversed {
10394 mem::swap(&mut range.start, &mut range.end);
10395 }
10396 new_selections_by_buffer
10397 .entry(buffer)
10398 .or_insert(Vec::new())
10399 .push(range)
10400 }
10401 }
10402
10403 // We defer the pane interaction because we ourselves are a workspace item
10404 // and activating a new item causes the pane to call a method on us reentrantly,
10405 // which panics if we're on the stack.
10406 cx.window_context().defer(move |cx| {
10407 workspace.update(cx, |workspace, cx| {
10408 let pane = if split {
10409 workspace.adjacent_pane(cx)
10410 } else {
10411 workspace.active_pane().clone()
10412 };
10413
10414 for (buffer, ranges) in new_selections_by_buffer {
10415 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10416 editor.update(cx, |editor, cx| {
10417 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10418 s.select_ranges(ranges);
10419 });
10420 });
10421 }
10422 })
10423 });
10424 }
10425
10426 fn jump(
10427 &mut self,
10428 path: ProjectPath,
10429 position: Point,
10430 anchor: language::Anchor,
10431 offset_from_top: u32,
10432 cx: &mut ViewContext<Self>,
10433 ) {
10434 let workspace = self.workspace();
10435 cx.spawn(|_, mut cx| async move {
10436 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10437 let editor = workspace.update(&mut cx, |workspace, cx| {
10438 // Reset the preview item id before opening the new item
10439 workspace.active_pane().update(cx, |pane, cx| {
10440 pane.set_preview_item_id(None, cx);
10441 });
10442 workspace.open_path_preview(path, None, true, true, cx)
10443 })?;
10444 let editor = editor
10445 .await?
10446 .downcast::<Editor>()
10447 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10448 .downgrade();
10449 editor.update(&mut cx, |editor, cx| {
10450 let buffer = editor
10451 .buffer()
10452 .read(cx)
10453 .as_singleton()
10454 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10455 let buffer = buffer.read(cx);
10456 let cursor = if buffer.can_resolve(&anchor) {
10457 language::ToPoint::to_point(&anchor, buffer)
10458 } else {
10459 buffer.clip_point(position, Bias::Left)
10460 };
10461
10462 let nav_history = editor.nav_history.take();
10463 editor.change_selections(
10464 Some(Autoscroll::top_relative(offset_from_top as usize)),
10465 cx,
10466 |s| {
10467 s.select_ranges([cursor..cursor]);
10468 },
10469 );
10470 editor.nav_history = nav_history;
10471
10472 anyhow::Ok(())
10473 })??;
10474
10475 anyhow::Ok(())
10476 })
10477 .detach_and_log_err(cx);
10478 }
10479
10480 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10481 let snapshot = self.buffer.read(cx).read(cx);
10482 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10483 Some(
10484 ranges
10485 .iter()
10486 .map(move |range| {
10487 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10488 })
10489 .collect(),
10490 )
10491 }
10492
10493 fn selection_replacement_ranges(
10494 &self,
10495 range: Range<OffsetUtf16>,
10496 cx: &AppContext,
10497 ) -> Vec<Range<OffsetUtf16>> {
10498 let selections = self.selections.all::<OffsetUtf16>(cx);
10499 let newest_selection = selections
10500 .iter()
10501 .max_by_key(|selection| selection.id)
10502 .unwrap();
10503 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10504 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10505 let snapshot = self.buffer.read(cx).read(cx);
10506 selections
10507 .into_iter()
10508 .map(|mut selection| {
10509 selection.start.0 =
10510 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10511 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10512 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10513 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10514 })
10515 .collect()
10516 }
10517
10518 fn report_editor_event(
10519 &self,
10520 operation: &'static str,
10521 file_extension: Option<String>,
10522 cx: &AppContext,
10523 ) {
10524 if cfg!(any(test, feature = "test-support")) {
10525 return;
10526 }
10527
10528 let Some(project) = &self.project else { return };
10529
10530 // If None, we are in a file without an extension
10531 let file = self
10532 .buffer
10533 .read(cx)
10534 .as_singleton()
10535 .and_then(|b| b.read(cx).file());
10536 let file_extension = file_extension.or(file
10537 .as_ref()
10538 .and_then(|file| Path::new(file.file_name(cx)).extension())
10539 .and_then(|e| e.to_str())
10540 .map(|a| a.to_string()));
10541
10542 let vim_mode = cx
10543 .global::<SettingsStore>()
10544 .raw_user_settings()
10545 .get("vim_mode")
10546 == Some(&serde_json::Value::Bool(true));
10547
10548 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10549 == language::language_settings::InlineCompletionProvider::Copilot;
10550 let copilot_enabled_for_language = self
10551 .buffer
10552 .read(cx)
10553 .settings_at(0, cx)
10554 .show_inline_completions;
10555
10556 let telemetry = project.read(cx).client().telemetry().clone();
10557 telemetry.report_editor_event(
10558 file_extension,
10559 vim_mode,
10560 operation,
10561 copilot_enabled,
10562 copilot_enabled_for_language,
10563 )
10564 }
10565
10566 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10567 /// with each line being an array of {text, highlight} objects.
10568 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10569 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10570 return;
10571 };
10572
10573 #[derive(Serialize)]
10574 struct Chunk<'a> {
10575 text: String,
10576 highlight: Option<&'a str>,
10577 }
10578
10579 let snapshot = buffer.read(cx).snapshot();
10580 let range = self
10581 .selected_text_range(cx)
10582 .and_then(|selected_range| {
10583 if selected_range.is_empty() {
10584 None
10585 } else {
10586 Some(selected_range)
10587 }
10588 })
10589 .unwrap_or_else(|| 0..snapshot.len());
10590
10591 let chunks = snapshot.chunks(range, true);
10592 let mut lines = Vec::new();
10593 let mut line: VecDeque<Chunk> = VecDeque::new();
10594
10595 let Some(style) = self.style.as_ref() else {
10596 return;
10597 };
10598
10599 for chunk in chunks {
10600 let highlight = chunk
10601 .syntax_highlight_id
10602 .and_then(|id| id.name(&style.syntax));
10603 let mut chunk_lines = chunk.text.split('\n').peekable();
10604 while let Some(text) = chunk_lines.next() {
10605 let mut merged_with_last_token = false;
10606 if let Some(last_token) = line.back_mut() {
10607 if last_token.highlight == highlight {
10608 last_token.text.push_str(text);
10609 merged_with_last_token = true;
10610 }
10611 }
10612
10613 if !merged_with_last_token {
10614 line.push_back(Chunk {
10615 text: text.into(),
10616 highlight,
10617 });
10618 }
10619
10620 if chunk_lines.peek().is_some() {
10621 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10622 line.pop_front();
10623 }
10624 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10625 line.pop_back();
10626 }
10627
10628 lines.push(mem::take(&mut line));
10629 }
10630 }
10631 }
10632
10633 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10634 return;
10635 };
10636 cx.write_to_clipboard(ClipboardItem::new(lines));
10637 }
10638
10639 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10640 &self.inlay_hint_cache
10641 }
10642
10643 pub fn replay_insert_event(
10644 &mut self,
10645 text: &str,
10646 relative_utf16_range: Option<Range<isize>>,
10647 cx: &mut ViewContext<Self>,
10648 ) {
10649 if !self.input_enabled {
10650 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10651 return;
10652 }
10653 if let Some(relative_utf16_range) = relative_utf16_range {
10654 let selections = self.selections.all::<OffsetUtf16>(cx);
10655 self.change_selections(None, cx, |s| {
10656 let new_ranges = selections.into_iter().map(|range| {
10657 let start = OffsetUtf16(
10658 range
10659 .head()
10660 .0
10661 .saturating_add_signed(relative_utf16_range.start),
10662 );
10663 let end = OffsetUtf16(
10664 range
10665 .head()
10666 .0
10667 .saturating_add_signed(relative_utf16_range.end),
10668 );
10669 start..end
10670 });
10671 s.select_ranges(new_ranges);
10672 });
10673 }
10674
10675 self.handle_input(text, cx);
10676 }
10677
10678 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10679 let Some(project) = self.project.as_ref() else {
10680 return false;
10681 };
10682 let project = project.read(cx);
10683
10684 let mut supports = false;
10685 self.buffer().read(cx).for_each_buffer(|buffer| {
10686 if !supports {
10687 supports = project
10688 .language_servers_for_buffer(buffer.read(cx), cx)
10689 .any(
10690 |(_, server)| match server.capabilities().inlay_hint_provider {
10691 Some(lsp::OneOf::Left(enabled)) => enabled,
10692 Some(lsp::OneOf::Right(_)) => true,
10693 None => false,
10694 },
10695 )
10696 }
10697 });
10698 supports
10699 }
10700
10701 pub fn focus(&self, cx: &mut WindowContext) {
10702 cx.focus(&self.focus_handle)
10703 }
10704
10705 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10706 self.focus_handle.is_focused(cx)
10707 }
10708
10709 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10710 cx.emit(EditorEvent::Focused);
10711
10712 if let Some(rename) = self.pending_rename.as_ref() {
10713 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10714 cx.focus(&rename_editor_focus_handle);
10715 } else {
10716 if let Some(blame) = self.blame.as_ref() {
10717 blame.update(cx, GitBlame::focus)
10718 }
10719
10720 self.blink_manager.update(cx, BlinkManager::enable);
10721 self.show_cursor_names(cx);
10722 self.buffer.update(cx, |buffer, cx| {
10723 buffer.finalize_last_transaction(cx);
10724 if self.leader_peer_id.is_none() {
10725 buffer.set_active_selections(
10726 &self.selections.disjoint_anchors(),
10727 self.selections.line_mode,
10728 self.cursor_shape,
10729 cx,
10730 );
10731 }
10732 });
10733 }
10734 }
10735
10736 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10737 self.blink_manager.update(cx, BlinkManager::disable);
10738 self.buffer
10739 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10740
10741 if let Some(blame) = self.blame.as_ref() {
10742 blame.update(cx, GitBlame::blur)
10743 }
10744 self.hide_context_menu(cx);
10745 hide_hover(self, cx);
10746 cx.emit(EditorEvent::Blurred);
10747 cx.notify();
10748 }
10749
10750 pub fn register_action<A: Action>(
10751 &mut self,
10752 listener: impl Fn(&A, &mut WindowContext) + 'static,
10753 ) -> &mut Self {
10754 let listener = Arc::new(listener);
10755
10756 self.editor_actions.push(Box::new(move |cx| {
10757 let _view = cx.view().clone();
10758 let cx = cx.window_context();
10759 let listener = listener.clone();
10760 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10761 let action = action.downcast_ref().unwrap();
10762 if phase == DispatchPhase::Bubble {
10763 listener(action, cx)
10764 }
10765 })
10766 }));
10767 self
10768 }
10769}
10770
10771fn hunks_for_selections(
10772 multi_buffer_snapshot: &MultiBufferSnapshot,
10773 selections: &[Selection<Anchor>],
10774) -> Vec<DiffHunk<MultiBufferRow>> {
10775 let mut hunks = Vec::with_capacity(selections.len());
10776 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10777 HashMap::default();
10778 let buffer_rows_for_selections = selections.iter().map(|selection| {
10779 let head = selection.head();
10780 let tail = selection.tail();
10781 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
10782 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
10783 if start > end {
10784 end..start
10785 } else {
10786 start..end
10787 }
10788 });
10789
10790 for selected_multi_buffer_rows in buffer_rows_for_selections {
10791 let query_rows =
10792 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
10793 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10794 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10795 // when the caret is just above or just below the deleted hunk.
10796 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
10797 let related_to_selection = if allow_adjacent {
10798 hunk.associated_range.overlaps(&query_rows)
10799 || hunk.associated_range.start == query_rows.end
10800 || hunk.associated_range.end == query_rows.start
10801 } else {
10802 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10803 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10804 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10805 || selected_multi_buffer_rows.end == hunk.associated_range.start
10806 };
10807 if related_to_selection {
10808 if !processed_buffer_rows
10809 .entry(hunk.buffer_id)
10810 .or_default()
10811 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10812 {
10813 continue;
10814 }
10815 hunks.push(hunk);
10816 }
10817 }
10818 }
10819
10820 hunks
10821}
10822
10823pub trait CollaborationHub {
10824 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10825 fn user_participant_indices<'a>(
10826 &self,
10827 cx: &'a AppContext,
10828 ) -> &'a HashMap<u64, ParticipantIndex>;
10829 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10830}
10831
10832impl CollaborationHub for Model<Project> {
10833 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10834 self.read(cx).collaborators()
10835 }
10836
10837 fn user_participant_indices<'a>(
10838 &self,
10839 cx: &'a AppContext,
10840 ) -> &'a HashMap<u64, ParticipantIndex> {
10841 self.read(cx).user_store().read(cx).participant_indices()
10842 }
10843
10844 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10845 let this = self.read(cx);
10846 let user_ids = this.collaborators().values().map(|c| c.user_id);
10847 this.user_store().read_with(cx, |user_store, cx| {
10848 user_store.participant_names(user_ids, cx)
10849 })
10850 }
10851}
10852
10853pub trait CompletionProvider {
10854 fn completions(
10855 &self,
10856 buffer: &Model<Buffer>,
10857 buffer_position: text::Anchor,
10858 cx: &mut ViewContext<Editor>,
10859 ) -> Task<Result<Vec<Completion>>>;
10860
10861 fn resolve_completions(
10862 &self,
10863 buffer: Model<Buffer>,
10864 completion_indices: Vec<usize>,
10865 completions: Arc<RwLock<Box<[Completion]>>>,
10866 cx: &mut ViewContext<Editor>,
10867 ) -> Task<Result<bool>>;
10868
10869 fn apply_additional_edits_for_completion(
10870 &self,
10871 buffer: Model<Buffer>,
10872 completion: Completion,
10873 push_to_history: bool,
10874 cx: &mut ViewContext<Editor>,
10875 ) -> Task<Result<Option<language::Transaction>>>;
10876}
10877
10878impl CompletionProvider for Model<Project> {
10879 fn completions(
10880 &self,
10881 buffer: &Model<Buffer>,
10882 buffer_position: text::Anchor,
10883 cx: &mut ViewContext<Editor>,
10884 ) -> Task<Result<Vec<Completion>>> {
10885 self.update(cx, |project, cx| {
10886 project.completions(&buffer, buffer_position, cx)
10887 })
10888 }
10889
10890 fn resolve_completions(
10891 &self,
10892 buffer: Model<Buffer>,
10893 completion_indices: Vec<usize>,
10894 completions: Arc<RwLock<Box<[Completion]>>>,
10895 cx: &mut ViewContext<Editor>,
10896 ) -> Task<Result<bool>> {
10897 self.update(cx, |project, cx| {
10898 project.resolve_completions(buffer, completion_indices, completions, cx)
10899 })
10900 }
10901
10902 fn apply_additional_edits_for_completion(
10903 &self,
10904 buffer: Model<Buffer>,
10905 completion: Completion,
10906 push_to_history: bool,
10907 cx: &mut ViewContext<Editor>,
10908 ) -> Task<Result<Option<language::Transaction>>> {
10909 self.update(cx, |project, cx| {
10910 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10911 })
10912 }
10913}
10914
10915fn inlay_hint_settings(
10916 location: Anchor,
10917 snapshot: &MultiBufferSnapshot,
10918 cx: &mut ViewContext<'_, Editor>,
10919) -> InlayHintSettings {
10920 let file = snapshot.file_at(location);
10921 let language = snapshot.language_at(location);
10922 let settings = all_language_settings(file, cx);
10923 settings
10924 .language(language.map(|l| l.name()).as_deref())
10925 .inlay_hints
10926}
10927
10928fn consume_contiguous_rows(
10929 contiguous_row_selections: &mut Vec<Selection<Point>>,
10930 selection: &Selection<Point>,
10931 display_map: &DisplaySnapshot,
10932 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10933) -> (MultiBufferRow, MultiBufferRow) {
10934 contiguous_row_selections.push(selection.clone());
10935 let start_row = MultiBufferRow(selection.start.row);
10936 let mut end_row = ending_row(selection, display_map);
10937
10938 while let Some(next_selection) = selections.peek() {
10939 if next_selection.start.row <= end_row.0 {
10940 end_row = ending_row(next_selection, display_map);
10941 contiguous_row_selections.push(selections.next().unwrap().clone());
10942 } else {
10943 break;
10944 }
10945 }
10946 (start_row, end_row)
10947}
10948
10949fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
10950 if next_selection.end.column > 0 || next_selection.is_empty() {
10951 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
10952 } else {
10953 MultiBufferRow(next_selection.end.row)
10954 }
10955}
10956
10957impl EditorSnapshot {
10958 pub fn remote_selections_in_range<'a>(
10959 &'a self,
10960 range: &'a Range<Anchor>,
10961 collaboration_hub: &dyn CollaborationHub,
10962 cx: &'a AppContext,
10963 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10964 let participant_names = collaboration_hub.user_names(cx);
10965 let participant_indices = collaboration_hub.user_participant_indices(cx);
10966 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10967 let collaborators_by_replica_id = collaborators_by_peer_id
10968 .iter()
10969 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10970 .collect::<HashMap<_, _>>();
10971 self.buffer_snapshot
10972 .remote_selections_in_range(range)
10973 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10974 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10975 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10976 let user_name = participant_names.get(&collaborator.user_id).cloned();
10977 Some(RemoteSelection {
10978 replica_id,
10979 selection,
10980 cursor_shape,
10981 line_mode,
10982 participant_index,
10983 peer_id: collaborator.peer_id,
10984 user_name,
10985 })
10986 })
10987 }
10988
10989 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10990 self.display_snapshot.buffer_snapshot.language_at(position)
10991 }
10992
10993 pub fn is_focused(&self) -> bool {
10994 self.is_focused
10995 }
10996
10997 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10998 self.placeholder_text.as_ref()
10999 }
11000
11001 pub fn scroll_position(&self) -> gpui::Point<f32> {
11002 self.scroll_anchor.scroll_position(&self.display_snapshot)
11003 }
11004
11005 pub fn gutter_dimensions(
11006 &self,
11007 font_id: FontId,
11008 font_size: Pixels,
11009 em_width: Pixels,
11010 max_line_number_width: Pixels,
11011 cx: &AppContext,
11012 ) -> GutterDimensions {
11013 if !self.show_gutter {
11014 return GutterDimensions::default();
11015 }
11016 let descent = cx.text_system().descent(font_id, font_size);
11017
11018 let show_git_gutter = matches!(
11019 ProjectSettings::get_global(cx).git.git_gutter,
11020 Some(GitGutterSetting::TrackedFiles)
11021 );
11022 let gutter_settings = EditorSettings::get_global(cx).gutter;
11023 let gutter_lines_enabled = gutter_settings.line_numbers;
11024 let line_gutter_width = if gutter_lines_enabled {
11025 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11026 let min_width_for_number_on_gutter = em_width * 4.0;
11027 max_line_number_width.max(min_width_for_number_on_gutter)
11028 } else {
11029 0.0.into()
11030 };
11031
11032 let git_blame_entries_width = self
11033 .render_git_blame_gutter
11034 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11035
11036 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11037 left_padding += if gutter_settings.code_actions {
11038 em_width * 3.0
11039 } else if show_git_gutter && gutter_lines_enabled {
11040 em_width * 2.0
11041 } else if show_git_gutter || gutter_lines_enabled {
11042 em_width
11043 } else {
11044 px(0.)
11045 };
11046
11047 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
11048 em_width * 4.0
11049 } else if gutter_settings.folds {
11050 em_width * 3.0
11051 } else if gutter_lines_enabled {
11052 em_width
11053 } else {
11054 px(0.)
11055 };
11056
11057 GutterDimensions {
11058 left_padding,
11059 right_padding,
11060 width: line_gutter_width + left_padding + right_padding,
11061 margin: -descent,
11062 git_blame_entries_width,
11063 }
11064 }
11065}
11066
11067impl Deref for EditorSnapshot {
11068 type Target = DisplaySnapshot;
11069
11070 fn deref(&self) -> &Self::Target {
11071 &self.display_snapshot
11072 }
11073}
11074
11075#[derive(Clone, Debug, PartialEq, Eq)]
11076pub enum EditorEvent {
11077 InputIgnored {
11078 text: Arc<str>,
11079 },
11080 InputHandled {
11081 utf16_range_to_replace: Option<Range<isize>>,
11082 text: Arc<str>,
11083 },
11084 ExcerptsAdded {
11085 buffer: Model<Buffer>,
11086 predecessor: ExcerptId,
11087 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11088 },
11089 ExcerptsRemoved {
11090 ids: Vec<ExcerptId>,
11091 },
11092 BufferEdited,
11093 Edited,
11094 Reparsed,
11095 Focused,
11096 Blurred,
11097 DirtyChanged,
11098 Saved,
11099 TitleChanged,
11100 DiffBaseChanged,
11101 SelectionsChanged {
11102 local: bool,
11103 },
11104 ScrollPositionChanged {
11105 local: bool,
11106 autoscroll: bool,
11107 },
11108 Closed,
11109 TransactionUndone {
11110 transaction_id: clock::Lamport,
11111 },
11112 TransactionBegun {
11113 transaction_id: clock::Lamport,
11114 },
11115}
11116
11117impl EventEmitter<EditorEvent> for Editor {}
11118
11119impl FocusableView for Editor {
11120 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11121 self.focus_handle.clone()
11122 }
11123}
11124
11125impl Render for Editor {
11126 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11127 let settings = ThemeSettings::get_global(cx);
11128
11129 let text_style = match self.mode {
11130 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11131 color: cx.theme().colors().editor_foreground,
11132 font_family: settings.ui_font.family.clone(),
11133 font_features: settings.ui_font.features.clone(),
11134 font_size: rems(0.875).into(),
11135 font_weight: FontWeight::NORMAL,
11136 font_style: FontStyle::Normal,
11137 line_height: relative(settings.buffer_line_height.value()),
11138 background_color: None,
11139 underline: None,
11140 strikethrough: None,
11141 white_space: WhiteSpace::Normal,
11142 },
11143 EditorMode::Full => TextStyle {
11144 color: cx.theme().colors().editor_foreground,
11145 font_family: settings.buffer_font.family.clone(),
11146 font_features: settings.buffer_font.features.clone(),
11147 font_size: settings.buffer_font_size(cx).into(),
11148 font_weight: FontWeight::NORMAL,
11149 font_style: FontStyle::Normal,
11150 line_height: relative(settings.buffer_line_height.value()),
11151 background_color: None,
11152 underline: None,
11153 strikethrough: None,
11154 white_space: WhiteSpace::Normal,
11155 },
11156 };
11157
11158 let background = match self.mode {
11159 EditorMode::SingleLine => cx.theme().system().transparent,
11160 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11161 EditorMode::Full => cx.theme().colors().editor_background,
11162 };
11163
11164 EditorElement::new(
11165 cx.view(),
11166 EditorStyle {
11167 background,
11168 local_player: cx.theme().players().local(),
11169 text: text_style,
11170 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11171 syntax: cx.theme().syntax().clone(),
11172 status: cx.theme().status().clone(),
11173 inlay_hints_style: HighlightStyle {
11174 color: Some(cx.theme().status().hint),
11175 ..HighlightStyle::default()
11176 },
11177 suggestions_style: HighlightStyle {
11178 color: Some(cx.theme().status().predictive),
11179 ..HighlightStyle::default()
11180 },
11181 },
11182 )
11183 }
11184}
11185
11186impl ViewInputHandler for Editor {
11187 fn text_for_range(
11188 &mut self,
11189 range_utf16: Range<usize>,
11190 cx: &mut ViewContext<Self>,
11191 ) -> Option<String> {
11192 Some(
11193 self.buffer
11194 .read(cx)
11195 .read(cx)
11196 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11197 .collect(),
11198 )
11199 }
11200
11201 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11202 // Prevent the IME menu from appearing when holding down an alphabetic key
11203 // while input is disabled.
11204 if !self.input_enabled {
11205 return None;
11206 }
11207
11208 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11209 Some(range.start.0..range.end.0)
11210 }
11211
11212 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11213 let snapshot = self.buffer.read(cx).read(cx);
11214 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11215 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11216 }
11217
11218 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11219 self.clear_highlights::<InputComposition>(cx);
11220 self.ime_transaction.take();
11221 }
11222
11223 fn replace_text_in_range(
11224 &mut self,
11225 range_utf16: Option<Range<usize>>,
11226 text: &str,
11227 cx: &mut ViewContext<Self>,
11228 ) {
11229 if !self.input_enabled {
11230 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11231 return;
11232 }
11233
11234 self.transact(cx, |this, cx| {
11235 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11236 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11237 Some(this.selection_replacement_ranges(range_utf16, cx))
11238 } else {
11239 this.marked_text_ranges(cx)
11240 };
11241
11242 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11243 let newest_selection_id = this.selections.newest_anchor().id;
11244 this.selections
11245 .all::<OffsetUtf16>(cx)
11246 .iter()
11247 .zip(ranges_to_replace.iter())
11248 .find_map(|(selection, range)| {
11249 if selection.id == newest_selection_id {
11250 Some(
11251 (range.start.0 as isize - selection.head().0 as isize)
11252 ..(range.end.0 as isize - selection.head().0 as isize),
11253 )
11254 } else {
11255 None
11256 }
11257 })
11258 });
11259
11260 cx.emit(EditorEvent::InputHandled {
11261 utf16_range_to_replace: range_to_replace,
11262 text: text.into(),
11263 });
11264
11265 if let Some(new_selected_ranges) = new_selected_ranges {
11266 this.change_selections(None, cx, |selections| {
11267 selections.select_ranges(new_selected_ranges)
11268 });
11269 this.backspace(&Default::default(), cx);
11270 }
11271
11272 this.handle_input(text, cx);
11273 });
11274
11275 if let Some(transaction) = self.ime_transaction {
11276 self.buffer.update(cx, |buffer, cx| {
11277 buffer.group_until_transaction(transaction, cx);
11278 });
11279 }
11280
11281 self.unmark_text(cx);
11282 }
11283
11284 fn replace_and_mark_text_in_range(
11285 &mut self,
11286 range_utf16: Option<Range<usize>>,
11287 text: &str,
11288 new_selected_range_utf16: Option<Range<usize>>,
11289 cx: &mut ViewContext<Self>,
11290 ) {
11291 if !self.input_enabled {
11292 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11293 return;
11294 }
11295
11296 let transaction = self.transact(cx, |this, cx| {
11297 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11298 let snapshot = this.buffer.read(cx).read(cx);
11299 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11300 for marked_range in &mut marked_ranges {
11301 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11302 marked_range.start.0 += relative_range_utf16.start;
11303 marked_range.start =
11304 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11305 marked_range.end =
11306 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11307 }
11308 }
11309 Some(marked_ranges)
11310 } else if let Some(range_utf16) = range_utf16 {
11311 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11312 Some(this.selection_replacement_ranges(range_utf16, cx))
11313 } else {
11314 None
11315 };
11316
11317 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11318 let newest_selection_id = this.selections.newest_anchor().id;
11319 this.selections
11320 .all::<OffsetUtf16>(cx)
11321 .iter()
11322 .zip(ranges_to_replace.iter())
11323 .find_map(|(selection, range)| {
11324 if selection.id == newest_selection_id {
11325 Some(
11326 (range.start.0 as isize - selection.head().0 as isize)
11327 ..(range.end.0 as isize - selection.head().0 as isize),
11328 )
11329 } else {
11330 None
11331 }
11332 })
11333 });
11334
11335 cx.emit(EditorEvent::InputHandled {
11336 utf16_range_to_replace: range_to_replace,
11337 text: text.into(),
11338 });
11339
11340 if let Some(ranges) = ranges_to_replace {
11341 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11342 }
11343
11344 let marked_ranges = {
11345 let snapshot = this.buffer.read(cx).read(cx);
11346 this.selections
11347 .disjoint_anchors()
11348 .iter()
11349 .map(|selection| {
11350 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11351 })
11352 .collect::<Vec<_>>()
11353 };
11354
11355 if text.is_empty() {
11356 this.unmark_text(cx);
11357 } else {
11358 this.highlight_text::<InputComposition>(
11359 marked_ranges.clone(),
11360 HighlightStyle {
11361 underline: Some(UnderlineStyle {
11362 thickness: px(1.),
11363 color: None,
11364 wavy: false,
11365 }),
11366 ..Default::default()
11367 },
11368 cx,
11369 );
11370 }
11371
11372 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11373 let use_autoclose = this.use_autoclose;
11374 this.set_use_autoclose(false);
11375 this.handle_input(text, cx);
11376 this.set_use_autoclose(use_autoclose);
11377
11378 if let Some(new_selected_range) = new_selected_range_utf16 {
11379 let snapshot = this.buffer.read(cx).read(cx);
11380 let new_selected_ranges = marked_ranges
11381 .into_iter()
11382 .map(|marked_range| {
11383 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11384 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11385 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11386 snapshot.clip_offset_utf16(new_start, Bias::Left)
11387 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11388 })
11389 .collect::<Vec<_>>();
11390
11391 drop(snapshot);
11392 this.change_selections(None, cx, |selections| {
11393 selections.select_ranges(new_selected_ranges)
11394 });
11395 }
11396 });
11397
11398 self.ime_transaction = self.ime_transaction.or(transaction);
11399 if let Some(transaction) = self.ime_transaction {
11400 self.buffer.update(cx, |buffer, cx| {
11401 buffer.group_until_transaction(transaction, cx);
11402 });
11403 }
11404
11405 if self.text_highlights::<InputComposition>(cx).is_none() {
11406 self.ime_transaction.take();
11407 }
11408 }
11409
11410 fn bounds_for_range(
11411 &mut self,
11412 range_utf16: Range<usize>,
11413 element_bounds: gpui::Bounds<Pixels>,
11414 cx: &mut ViewContext<Self>,
11415 ) -> Option<gpui::Bounds<Pixels>> {
11416 let text_layout_details = self.text_layout_details(cx);
11417 let style = &text_layout_details.editor_style;
11418 let font_id = cx.text_system().resolve_font(&style.text.font());
11419 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11420 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11421 let em_width = cx
11422 .text_system()
11423 .typographic_bounds(font_id, font_size, 'm')
11424 .unwrap()
11425 .size
11426 .width;
11427
11428 let snapshot = self.snapshot(cx);
11429 let scroll_position = snapshot.scroll_position();
11430 let scroll_left = scroll_position.x * em_width;
11431
11432 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11433 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11434 + self.gutter_dimensions.width;
11435 let y = line_height * (start.row().as_f32() - scroll_position.y);
11436
11437 Some(Bounds {
11438 origin: element_bounds.origin + point(x, y),
11439 size: size(em_width, line_height),
11440 })
11441 }
11442}
11443
11444trait SelectionExt {
11445 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11446 fn spanned_rows(
11447 &self,
11448 include_end_if_at_line_start: bool,
11449 map: &DisplaySnapshot,
11450 ) -> Range<MultiBufferRow>;
11451}
11452
11453impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11454 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11455 let start = self
11456 .start
11457 .to_point(&map.buffer_snapshot)
11458 .to_display_point(map);
11459 let end = self
11460 .end
11461 .to_point(&map.buffer_snapshot)
11462 .to_display_point(map);
11463 if self.reversed {
11464 end..start
11465 } else {
11466 start..end
11467 }
11468 }
11469
11470 fn spanned_rows(
11471 &self,
11472 include_end_if_at_line_start: bool,
11473 map: &DisplaySnapshot,
11474 ) -> Range<MultiBufferRow> {
11475 let start = self.start.to_point(&map.buffer_snapshot);
11476 let mut end = self.end.to_point(&map.buffer_snapshot);
11477 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11478 end.row -= 1;
11479 }
11480
11481 let buffer_start = map.prev_line_boundary(start).0;
11482 let buffer_end = map.next_line_boundary(end).0;
11483 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11484 }
11485}
11486
11487impl<T: InvalidationRegion> InvalidationStack<T> {
11488 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11489 where
11490 S: Clone + ToOffset,
11491 {
11492 while let Some(region) = self.last() {
11493 let all_selections_inside_invalidation_ranges =
11494 if selections.len() == region.ranges().len() {
11495 selections
11496 .iter()
11497 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11498 .all(|(selection, invalidation_range)| {
11499 let head = selection.head().to_offset(buffer);
11500 invalidation_range.start <= head && invalidation_range.end >= head
11501 })
11502 } else {
11503 false
11504 };
11505
11506 if all_selections_inside_invalidation_ranges {
11507 break;
11508 } else {
11509 self.pop();
11510 }
11511 }
11512 }
11513}
11514
11515impl<T> Default for InvalidationStack<T> {
11516 fn default() -> Self {
11517 Self(Default::default())
11518 }
11519}
11520
11521impl<T> Deref for InvalidationStack<T> {
11522 type Target = Vec<T>;
11523
11524 fn deref(&self) -> &Self::Target {
11525 &self.0
11526 }
11527}
11528
11529impl<T> DerefMut for InvalidationStack<T> {
11530 fn deref_mut(&mut self) -> &mut Self::Target {
11531 &mut self.0
11532 }
11533}
11534
11535impl InvalidationRegion for SnippetState {
11536 fn ranges(&self) -> &[Range<Anchor>] {
11537 &self.ranges[self.active_index]
11538 }
11539}
11540
11541pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11542 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11543
11544 Box::new(move |cx: &mut BlockContext| {
11545 let group_id: SharedString = cx.block_id.to_string().into();
11546
11547 let mut text_style = cx.text_style().clone();
11548 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11549 let theme_settings = ThemeSettings::get_global(cx);
11550 text_style.font_family = theme_settings.buffer_font.family.clone();
11551 text_style.font_style = theme_settings.buffer_font.style;
11552 text_style.font_features = theme_settings.buffer_font.features.clone();
11553 text_style.font_weight = theme_settings.buffer_font.weight;
11554
11555 let multi_line_diagnostic = diagnostic.message.contains('\n');
11556
11557 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11558 if multi_line_diagnostic {
11559 v_flex()
11560 } else {
11561 h_flex()
11562 }
11563 .children(diagnostic.is_primary.then(|| {
11564 IconButton::new(("close-block", block_id), IconName::XCircle)
11565 .icon_color(Color::Muted)
11566 .size(ButtonSize::Compact)
11567 .style(ButtonStyle::Transparent)
11568 .visible_on_hover(group_id.clone())
11569 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11570 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11571 }))
11572 .child(
11573 IconButton::new(("copy-block", block_id), IconName::Copy)
11574 .icon_color(Color::Muted)
11575 .size(ButtonSize::Compact)
11576 .style(ButtonStyle::Transparent)
11577 .visible_on_hover(group_id.clone())
11578 .on_click({
11579 let message = diagnostic.message.clone();
11580 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11581 })
11582 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11583 )
11584 };
11585
11586 let icon_size = buttons(&diagnostic, cx.block_id)
11587 .into_any_element()
11588 .layout_as_root(AvailableSpace::min_size(), cx);
11589
11590 h_flex()
11591 .id(cx.block_id)
11592 .group(group_id.clone())
11593 .relative()
11594 .size_full()
11595 .pl(cx.gutter_dimensions.width)
11596 .w(cx.max_width + cx.gutter_dimensions.width)
11597 .child(
11598 div()
11599 .flex()
11600 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11601 .flex_shrink(),
11602 )
11603 .child(buttons(&diagnostic, cx.block_id))
11604 .child(div().flex().flex_shrink_0().child(
11605 StyledText::new(text_without_backticks.clone()).with_highlights(
11606 &text_style,
11607 code_ranges.iter().map(|range| {
11608 (
11609 range.clone(),
11610 HighlightStyle {
11611 font_weight: Some(FontWeight::BOLD),
11612 ..Default::default()
11613 },
11614 )
11615 }),
11616 ),
11617 ))
11618 .into_any_element()
11619 })
11620}
11621
11622pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11623 let mut text_without_backticks = String::new();
11624 let mut code_ranges = Vec::new();
11625
11626 if let Some(source) = &diagnostic.source {
11627 text_without_backticks.push_str(&source);
11628 code_ranges.push(0..source.len());
11629 text_without_backticks.push_str(": ");
11630 }
11631
11632 let mut prev_offset = 0;
11633 let mut in_code_block = false;
11634 for (ix, _) in diagnostic
11635 .message
11636 .match_indices('`')
11637 .chain([(diagnostic.message.len(), "")])
11638 {
11639 let prev_len = text_without_backticks.len();
11640 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11641 prev_offset = ix + 1;
11642 if in_code_block {
11643 code_ranges.push(prev_len..text_without_backticks.len());
11644 in_code_block = false;
11645 } else {
11646 in_code_block = true;
11647 }
11648 }
11649
11650 (text_without_backticks.into(), code_ranges)
11651}
11652
11653fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11654 match (severity, valid) {
11655 (DiagnosticSeverity::ERROR, true) => colors.error,
11656 (DiagnosticSeverity::ERROR, false) => colors.error,
11657 (DiagnosticSeverity::WARNING, true) => colors.warning,
11658 (DiagnosticSeverity::WARNING, false) => colors.warning,
11659 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11660 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11661 (DiagnosticSeverity::HINT, true) => colors.info,
11662 (DiagnosticSeverity::HINT, false) => colors.info,
11663 _ => colors.ignored,
11664 }
11665}
11666
11667pub fn styled_runs_for_code_label<'a>(
11668 label: &'a CodeLabel,
11669 syntax_theme: &'a theme::SyntaxTheme,
11670) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11671 let fade_out = HighlightStyle {
11672 fade_out: Some(0.35),
11673 ..Default::default()
11674 };
11675
11676 let mut prev_end = label.filter_range.end;
11677 label
11678 .runs
11679 .iter()
11680 .enumerate()
11681 .flat_map(move |(ix, (range, highlight_id))| {
11682 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11683 style
11684 } else {
11685 return Default::default();
11686 };
11687 let mut muted_style = style;
11688 muted_style.highlight(fade_out);
11689
11690 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11691 if range.start >= label.filter_range.end {
11692 if range.start > prev_end {
11693 runs.push((prev_end..range.start, fade_out));
11694 }
11695 runs.push((range.clone(), muted_style));
11696 } else if range.end <= label.filter_range.end {
11697 runs.push((range.clone(), style));
11698 } else {
11699 runs.push((range.start..label.filter_range.end, style));
11700 runs.push((label.filter_range.end..range.end, muted_style));
11701 }
11702 prev_end = cmp::max(prev_end, range.end);
11703
11704 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11705 runs.push((prev_end..label.text.len(), fade_out));
11706 }
11707
11708 runs
11709 })
11710}
11711
11712pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11713 let mut prev_index = 0;
11714 let mut prev_codepoint: Option<char> = None;
11715 text.char_indices()
11716 .chain([(text.len(), '\0')])
11717 .filter_map(move |(index, codepoint)| {
11718 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11719 let is_boundary = index == text.len()
11720 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11721 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11722 if is_boundary {
11723 let chunk = &text[prev_index..index];
11724 prev_index = index;
11725 Some(chunk)
11726 } else {
11727 None
11728 }
11729 })
11730}
11731
11732trait RangeToAnchorExt {
11733 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11734}
11735
11736impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11737 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11738 let start_offset = self.start.to_offset(snapshot);
11739 let end_offset = self.end.to_offset(snapshot);
11740 if start_offset == end_offset {
11741 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11742 } else {
11743 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11744 }
11745 }
11746}
11747
11748pub trait RowExt {
11749 fn as_f32(&self) -> f32;
11750
11751 fn next_row(&self) -> Self;
11752
11753 fn previous_row(&self) -> Self;
11754
11755 fn minus(&self, other: Self) -> u32;
11756}
11757
11758impl RowExt for DisplayRow {
11759 fn as_f32(&self) -> f32 {
11760 self.0 as f32
11761 }
11762
11763 fn next_row(&self) -> Self {
11764 Self(self.0 + 1)
11765 }
11766
11767 fn previous_row(&self) -> Self {
11768 Self(self.0.saturating_sub(1))
11769 }
11770
11771 fn minus(&self, other: Self) -> u32 {
11772 self.0 - other.0
11773 }
11774}
11775
11776impl RowExt for MultiBufferRow {
11777 fn as_f32(&self) -> f32 {
11778 self.0 as f32
11779 }
11780
11781 fn next_row(&self) -> Self {
11782 Self(self.0 + 1)
11783 }
11784
11785 fn previous_row(&self) -> Self {
11786 Self(self.0.saturating_sub(1))
11787 }
11788
11789 fn minus(&self, other: Self) -> u32 {
11790 self.0 - other.0
11791 }
11792}
11793
11794trait RowRangeExt {
11795 type Row;
11796
11797 fn len(&self) -> usize;
11798
11799 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
11800}
11801
11802impl RowRangeExt for Range<MultiBufferRow> {
11803 type Row = MultiBufferRow;
11804
11805 fn len(&self) -> usize {
11806 (self.end.0 - self.start.0) as usize
11807 }
11808
11809 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
11810 (self.start.0..self.end.0).map(MultiBufferRow)
11811 }
11812}
11813
11814impl RowRangeExt for Range<DisplayRow> {
11815 type Row = DisplayRow;
11816
11817 fn len(&self) -> usize {
11818 (self.end.0 - self.start.0) as usize
11819 }
11820
11821 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
11822 (self.start.0..self.end.0).map(DisplayRow)
11823 }
11824}
11825
11826fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
11827 if hunk.diff_base_byte_range.is_empty() {
11828 DiffHunkStatus::Added
11829 } else if hunk.associated_range.is_empty() {
11830 DiffHunkStatus::Removed
11831 } else {
11832 DiffHunkStatus::Modified
11833 }
11834}