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 indent_guides;
30mod inline_completion_provider;
31pub mod items;
32mod mouse_context_menu;
33pub mod movement;
34mod persistence;
35mod rust_analyzer_ext;
36pub mod scroll;
37mod selections_collection;
38pub mod tasks;
39
40#[cfg(test)]
41mod editor_tests;
42#[cfg(any(test, feature = "test-support"))]
43pub mod test;
44use ::git::diff::{DiffHunk, DiffHunkStatus};
45use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
46pub(crate) use actions::*;
47use aho_corasick::AhoCorasick;
48use anyhow::{anyhow, Context as _, Result};
49use blink_manager::BlinkManager;
50use client::{Collaborator, ParticipantIndex};
51use clock::ReplicaId;
52use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
53use convert_case::{Case, Casing};
54use debounced_delay::DebouncedDelay;
55use display_map::*;
56pub use display_map::{DisplayPoint, FoldPlaceholder};
57use editor_settings::CurrentLineHighlight;
58pub use editor_settings::EditorSettings;
59use element::LineWithInvisibles;
60pub use element::{
61 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
62};
63use futures::FutureExt;
64use fuzzy::{StringMatch, StringMatchCandidate};
65use git::blame::GitBlame;
66use git::diff_hunk_to_display;
67use gpui::{
68 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
69 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
70 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
71 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
72 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
73 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
74 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
75};
76use highlight_matching_bracket::refresh_matching_bracket_highlights;
77use hover_popover::{hide_hover, HoverState};
78use hunk_diff::ExpandedHunks;
79pub(crate) use hunk_diff::HunkToExpand;
80use indent_guides::ActiveIndentGuidesState;
81use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
82pub use inline_completion_provider::*;
83pub use items::MAX_TAB_TITLE_LEN;
84use itertools::Itertools;
85use language::{
86 char_kind,
87 language_settings::{self, all_language_settings, InlayHintSettings},
88 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
89 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
90 Point, Selection, SelectionGoal, TransactionId,
91};
92use language::{BufferRow, Runnable, RunnableRange};
93use task::{ResolvedTask, TaskTemplate, TaskVariables};
94
95use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
96use lsp::{DiagnosticSeverity, LanguageServerId};
97use mouse_context_menu::MouseContextMenu;
98use movement::TextLayoutDetails;
99pub use multi_buffer::{
100 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
101 ToPoint,
102};
103use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
104use ordered_float::OrderedFloat;
105use parking_lot::{Mutex, RwLock};
106use project::project_settings::{GitGutterSetting, ProjectSettings};
107use project::{
108 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
109 ProjectTransaction, TaskSourceKind, WorktreeId,
110};
111use rand::prelude::*;
112use rpc::{proto::*, ErrorExt};
113use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
114use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
115use serde::{Deserialize, Serialize};
116use settings::{Settings, SettingsStore};
117use smallvec::SmallVec;
118use snippet::Snippet;
119use std::ops::Not as _;
120use std::{
121 any::TypeId,
122 borrow::Cow,
123 cmp::{self, Ordering, Reverse},
124 mem,
125 num::NonZeroU32,
126 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
127 path::Path,
128 sync::Arc,
129 time::{Duration, Instant},
130};
131pub use sum_tree::Bias;
132use sum_tree::TreeMap;
133use text::{BufferId, OffsetUtf16, Rope};
134use theme::{
135 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
136 ThemeColors, ThemeSettings,
137};
138use ui::{
139 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
140 Tooltip,
141};
142use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
143use workspace::item::{ItemHandle, PreviewTabsSettings};
144use workspace::notifications::{DetachAndPromptErr, NotificationId};
145use workspace::{
146 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
147};
148use workspace::{OpenInTerminal, OpenTerminal, Toast};
149
150use crate::hover_links::find_url;
151
152pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
153const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
154const MAX_LINE_LEN: usize = 1024;
155const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
156const MAX_SELECTION_HISTORY_LEN: usize = 1024;
157pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
158#[doc(hidden)]
159pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
160#[doc(hidden)]
161pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
162
163pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
164
165pub fn render_parsed_markdown(
166 element_id: impl Into<ElementId>,
167 parsed: &language::ParsedMarkdown,
168 editor_style: &EditorStyle,
169 workspace: Option<WeakView<Workspace>>,
170 cx: &mut WindowContext,
171) -> InteractiveText {
172 let code_span_background_color = cx
173 .theme()
174 .colors()
175 .editor_document_highlight_read_background;
176
177 let highlights = gpui::combine_highlights(
178 parsed.highlights.iter().filter_map(|(range, highlight)| {
179 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
180 Some((range.clone(), highlight))
181 }),
182 parsed
183 .regions
184 .iter()
185 .zip(&parsed.region_ranges)
186 .filter_map(|(region, range)| {
187 if region.code {
188 Some((
189 range.clone(),
190 HighlightStyle {
191 background_color: Some(code_span_background_color),
192 ..Default::default()
193 },
194 ))
195 } else {
196 None
197 }
198 }),
199 );
200
201 let mut links = Vec::new();
202 let mut link_ranges = Vec::new();
203 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
204 if let Some(link) = region.link.clone() {
205 links.push(link);
206 link_ranges.push(range.clone());
207 }
208 }
209
210 InteractiveText::new(
211 element_id,
212 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
213 )
214 .on_click(link_ranges, move |clicked_range_ix, cx| {
215 match &links[clicked_range_ix] {
216 markdown::Link::Web { url } => cx.open_url(url),
217 markdown::Link::Path { path } => {
218 if let Some(workspace) = &workspace {
219 _ = workspace.update(cx, |workspace, cx| {
220 workspace.open_abs_path(path.clone(), false, cx).detach();
221 });
222 }
223 }
224 }
225 })
226}
227
228#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
229pub(crate) enum InlayId {
230 Suggestion(usize),
231 Hint(usize),
232}
233
234impl InlayId {
235 fn id(&self) -> usize {
236 match self {
237 Self::Suggestion(id) => *id,
238 Self::Hint(id) => *id,
239 }
240 }
241}
242
243enum DiffRowHighlight {}
244enum DocumentHighlightRead {}
245enum DocumentHighlightWrite {}
246enum InputComposition {}
247
248#[derive(Copy, Clone, PartialEq, Eq)]
249pub enum Direction {
250 Prev,
251 Next,
252}
253
254pub fn init_settings(cx: &mut AppContext) {
255 EditorSettings::register(cx);
256}
257
258pub fn init(cx: &mut AppContext) {
259 init_settings(cx);
260
261 workspace::register_project_item::<Editor>(cx);
262 workspace::register_followable_item::<Editor>(cx);
263 workspace::register_deserializable_item::<Editor>(cx);
264 cx.observe_new_views(
265 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
266 workspace.register_action(Editor::new_file);
267 workspace.register_action(Editor::new_file_in_direction);
268 },
269 )
270 .detach();
271
272 cx.on_action(move |_: &workspace::NewFile, cx| {
273 let app_state = workspace::AppState::global(cx);
274 if let Some(app_state) = app_state.upgrade() {
275 workspace::open_new(app_state, cx, |workspace, cx| {
276 Editor::new_file(workspace, &Default::default(), cx)
277 })
278 .detach();
279 }
280 });
281 cx.on_action(move |_: &workspace::NewWindow, cx| {
282 let app_state = workspace::AppState::global(cx);
283 if let Some(app_state) = app_state.upgrade() {
284 workspace::open_new(app_state, cx, |workspace, cx| {
285 Editor::new_file(workspace, &Default::default(), cx)
286 })
287 .detach();
288 }
289 });
290}
291
292pub struct SearchWithinRange;
293
294trait InvalidationRegion {
295 fn ranges(&self) -> &[Range<Anchor>];
296}
297
298#[derive(Clone, Debug, PartialEq)]
299pub enum SelectPhase {
300 Begin {
301 position: DisplayPoint,
302 add: bool,
303 click_count: usize,
304 },
305 BeginColumnar {
306 position: DisplayPoint,
307 reset: bool,
308 goal_column: u32,
309 },
310 Extend {
311 position: DisplayPoint,
312 click_count: usize,
313 },
314 Update {
315 position: DisplayPoint,
316 goal_column: u32,
317 scroll_delta: gpui::Point<f32>,
318 },
319 End,
320}
321
322#[derive(Clone, Debug)]
323pub enum SelectMode {
324 Character,
325 Word(Range<Anchor>),
326 Line(Range<Anchor>),
327 All,
328}
329
330#[derive(Copy, Clone, PartialEq, Eq, Debug)]
331pub enum EditorMode {
332 SingleLine,
333 AutoHeight { max_lines: usize },
334 Full,
335}
336
337#[derive(Clone, Debug)]
338pub enum SoftWrap {
339 None,
340 PreferLine,
341 EditorWidth,
342 Column(u32),
343}
344
345#[derive(Clone)]
346pub struct EditorStyle {
347 pub background: Hsla,
348 pub local_player: PlayerColor,
349 pub text: TextStyle,
350 pub scrollbar_width: Pixels,
351 pub syntax: Arc<SyntaxTheme>,
352 pub status: StatusColors,
353 pub inlay_hints_style: HighlightStyle,
354 pub suggestions_style: HighlightStyle,
355}
356
357impl Default for EditorStyle {
358 fn default() -> Self {
359 Self {
360 background: Hsla::default(),
361 local_player: PlayerColor::default(),
362 text: TextStyle::default(),
363 scrollbar_width: Pixels::default(),
364 syntax: Default::default(),
365 // HACK: Status colors don't have a real default.
366 // We should look into removing the status colors from the editor
367 // style and retrieve them directly from the theme.
368 status: StatusColors::dark(),
369 inlay_hints_style: HighlightStyle::default(),
370 suggestions_style: HighlightStyle::default(),
371 }
372 }
373}
374
375type CompletionId = usize;
376
377// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
378// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
379
380type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
381
382struct ScrollbarMarkerState {
383 scrollbar_size: Size<Pixels>,
384 dirty: bool,
385 markers: Arc<[PaintQuad]>,
386 pending_refresh: Option<Task<Result<()>>>,
387}
388
389impl ScrollbarMarkerState {
390 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
391 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
392 }
393}
394
395impl Default for ScrollbarMarkerState {
396 fn default() -> Self {
397 Self {
398 scrollbar_size: Size::default(),
399 dirty: false,
400 markers: Arc::from([]),
401 pending_refresh: None,
402 }
403 }
404}
405
406#[derive(Clone, Debug)]
407struct RunnableTasks {
408 templates: Vec<(TaskSourceKind, TaskTemplate)>,
409 offset: MultiBufferOffset,
410 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
411 column: u32,
412 // Values of all named captures, including those starting with '_'
413 extra_variables: HashMap<String, String>,
414 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
415 context_range: Range<BufferOffset>,
416}
417
418#[derive(Clone)]
419struct ResolvedTasks {
420 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
421 position: Anchor,
422}
423#[derive(Copy, Clone, Debug)]
424struct MultiBufferOffset(usize);
425#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
426struct BufferOffset(usize);
427/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
428///
429/// See the [module level documentation](self) for more information.
430pub struct Editor {
431 focus_handle: FocusHandle,
432 /// The text buffer being edited
433 buffer: Model<MultiBuffer>,
434 /// Map of how text in the buffer should be displayed.
435 /// Handles soft wraps, folds, fake inlay text insertions, etc.
436 pub display_map: Model<DisplayMap>,
437 pub selections: SelectionsCollection,
438 pub scroll_manager: ScrollManager,
439 columnar_selection_tail: Option<Anchor>,
440 add_selections_state: Option<AddSelectionsState>,
441 select_next_state: Option<SelectNextState>,
442 select_prev_state: Option<SelectNextState>,
443 selection_history: SelectionHistory,
444 autoclose_regions: Vec<AutocloseRegion>,
445 snippet_stack: InvalidationStack<SnippetState>,
446 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
447 ime_transaction: Option<TransactionId>,
448 active_diagnostics: Option<ActiveDiagnosticGroup>,
449 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
450 project: Option<Model<Project>>,
451 completion_provider: Option<Box<dyn CompletionProvider>>,
452 collaboration_hub: Option<Box<dyn CollaborationHub>>,
453 blink_manager: Model<BlinkManager>,
454 show_cursor_names: bool,
455 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
456 pub show_local_selections: bool,
457 mode: EditorMode,
458 show_breadcrumbs: bool,
459 show_gutter: bool,
460 show_line_numbers: Option<bool>,
461 show_git_diff_gutter: Option<bool>,
462 show_code_actions: Option<bool>,
463 show_wrap_guides: Option<bool>,
464 show_indent_guides: Option<bool>,
465 placeholder_text: Option<Arc<str>>,
466 highlight_order: usize,
467 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
468 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
469 scrollbar_marker_state: ScrollbarMarkerState,
470 active_indent_guides_state: ActiveIndentGuidesState,
471 nav_history: Option<ItemNavHistory>,
472 context_menu: RwLock<Option<ContextMenu>>,
473 mouse_context_menu: Option<MouseContextMenu>,
474 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
475 find_all_references_task_sources: Vec<Anchor>,
476 next_completion_id: CompletionId,
477 completion_documentation_pre_resolve_debounce: DebouncedDelay,
478 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
479 code_actions_task: Option<Task<()>>,
480 document_highlights_task: Option<Task<()>>,
481 pending_rename: Option<RenameState>,
482 searchable: bool,
483 cursor_shape: CursorShape,
484 current_line_highlight: CurrentLineHighlight,
485 collapse_matches: bool,
486 autoindent_mode: Option<AutoindentMode>,
487 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
488 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
489 input_enabled: bool,
490 use_modal_editing: bool,
491 read_only: bool,
492 leader_peer_id: Option<PeerId>,
493 remote_id: Option<ViewId>,
494 hover_state: HoverState,
495 gutter_hovered: bool,
496 hovered_link_state: Option<HoveredLinkState>,
497 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
498 active_inline_completion: Option<Inlay>,
499 show_inline_completions: bool,
500 inlay_hint_cache: InlayHintCache,
501 expanded_hunks: ExpandedHunks,
502 next_inlay_id: usize,
503 _subscriptions: Vec<Subscription>,
504 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
505 gutter_dimensions: GutterDimensions,
506 pub vim_replace_map: HashMap<Range<usize>, String>,
507 style: Option<EditorStyle>,
508 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
509 use_autoclose: bool,
510 auto_replace_emoji_shortcode: bool,
511 show_git_blame_gutter: bool,
512 show_git_blame_inline: bool,
513 show_git_blame_inline_delay_task: Option<Task<()>>,
514 git_blame_inline_enabled: bool,
515 blame: Option<Model<GitBlame>>,
516 blame_subscription: Option<Subscription>,
517 custom_context_menu: Option<
518 Box<
519 dyn 'static
520 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
521 >,
522 >,
523 last_bounds: Option<Bounds<Pixels>>,
524 expect_bounds_change: Option<Bounds<Pixels>>,
525 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
526 tasks_update_task: Option<Task<()>>,
527}
528
529#[derive(Clone)]
530pub struct EditorSnapshot {
531 pub mode: EditorMode,
532 show_gutter: bool,
533 show_line_numbers: Option<bool>,
534 show_git_diff_gutter: Option<bool>,
535 show_code_actions: Option<bool>,
536 render_git_blame_gutter: bool,
537 pub display_snapshot: DisplaySnapshot,
538 pub placeholder_text: Option<Arc<str>>,
539 is_focused: bool,
540 scroll_anchor: ScrollAnchor,
541 ongoing_scroll: OngoingScroll,
542 current_line_highlight: CurrentLineHighlight,
543 gutter_hovered: bool,
544}
545
546const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
547
548#[derive(Debug, Clone, Copy)]
549pub struct GutterDimensions {
550 pub left_padding: Pixels,
551 pub right_padding: Pixels,
552 pub width: Pixels,
553 pub margin: Pixels,
554 pub git_blame_entries_width: Option<Pixels>,
555}
556
557impl Default for GutterDimensions {
558 fn default() -> Self {
559 Self {
560 left_padding: Pixels::ZERO,
561 right_padding: Pixels::ZERO,
562 width: Pixels::ZERO,
563 margin: Pixels::ZERO,
564 git_blame_entries_width: None,
565 }
566 }
567}
568
569#[derive(Debug)]
570pub struct RemoteSelection {
571 pub replica_id: ReplicaId,
572 pub selection: Selection<Anchor>,
573 pub cursor_shape: CursorShape,
574 pub peer_id: PeerId,
575 pub line_mode: bool,
576 pub participant_index: Option<ParticipantIndex>,
577 pub user_name: Option<SharedString>,
578}
579
580#[derive(Clone, Debug)]
581struct SelectionHistoryEntry {
582 selections: Arc<[Selection<Anchor>]>,
583 select_next_state: Option<SelectNextState>,
584 select_prev_state: Option<SelectNextState>,
585 add_selections_state: Option<AddSelectionsState>,
586}
587
588enum SelectionHistoryMode {
589 Normal,
590 Undoing,
591 Redoing,
592}
593
594#[derive(Clone, PartialEq, Eq, Hash)]
595struct HoveredCursor {
596 replica_id: u16,
597 selection_id: usize,
598}
599
600impl Default for SelectionHistoryMode {
601 fn default() -> Self {
602 Self::Normal
603 }
604}
605
606#[derive(Default)]
607struct SelectionHistory {
608 #[allow(clippy::type_complexity)]
609 selections_by_transaction:
610 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
611 mode: SelectionHistoryMode,
612 undo_stack: VecDeque<SelectionHistoryEntry>,
613 redo_stack: VecDeque<SelectionHistoryEntry>,
614}
615
616impl SelectionHistory {
617 fn insert_transaction(
618 &mut self,
619 transaction_id: TransactionId,
620 selections: Arc<[Selection<Anchor>]>,
621 ) {
622 self.selections_by_transaction
623 .insert(transaction_id, (selections, None));
624 }
625
626 #[allow(clippy::type_complexity)]
627 fn transaction(
628 &self,
629 transaction_id: TransactionId,
630 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
631 self.selections_by_transaction.get(&transaction_id)
632 }
633
634 #[allow(clippy::type_complexity)]
635 fn transaction_mut(
636 &mut self,
637 transaction_id: TransactionId,
638 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
639 self.selections_by_transaction.get_mut(&transaction_id)
640 }
641
642 fn push(&mut self, entry: SelectionHistoryEntry) {
643 if !entry.selections.is_empty() {
644 match self.mode {
645 SelectionHistoryMode::Normal => {
646 self.push_undo(entry);
647 self.redo_stack.clear();
648 }
649 SelectionHistoryMode::Undoing => self.push_redo(entry),
650 SelectionHistoryMode::Redoing => self.push_undo(entry),
651 }
652 }
653 }
654
655 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
656 if self
657 .undo_stack
658 .back()
659 .map_or(true, |e| e.selections != entry.selections)
660 {
661 self.undo_stack.push_back(entry);
662 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
663 self.undo_stack.pop_front();
664 }
665 }
666 }
667
668 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
669 if self
670 .redo_stack
671 .back()
672 .map_or(true, |e| e.selections != entry.selections)
673 {
674 self.redo_stack.push_back(entry);
675 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
676 self.redo_stack.pop_front();
677 }
678 }
679 }
680}
681
682struct RowHighlight {
683 index: usize,
684 range: RangeInclusive<Anchor>,
685 color: Option<Hsla>,
686 should_autoscroll: bool,
687}
688
689#[derive(Clone, Debug)]
690struct AddSelectionsState {
691 above: bool,
692 stack: Vec<usize>,
693}
694
695#[derive(Clone)]
696struct SelectNextState {
697 query: AhoCorasick,
698 wordwise: bool,
699 done: bool,
700}
701
702impl std::fmt::Debug for SelectNextState {
703 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
704 f.debug_struct(std::any::type_name::<Self>())
705 .field("wordwise", &self.wordwise)
706 .field("done", &self.done)
707 .finish()
708 }
709}
710
711#[derive(Debug)]
712struct AutocloseRegion {
713 selection_id: usize,
714 range: Range<Anchor>,
715 pair: BracketPair,
716}
717
718#[derive(Debug)]
719struct SnippetState {
720 ranges: Vec<Vec<Range<Anchor>>>,
721 active_index: usize,
722}
723
724#[doc(hidden)]
725pub struct RenameState {
726 pub range: Range<Anchor>,
727 pub old_name: Arc<str>,
728 pub editor: View<Editor>,
729 block_id: BlockId,
730}
731
732struct InvalidationStack<T>(Vec<T>);
733
734struct RegisteredInlineCompletionProvider {
735 provider: Arc<dyn InlineCompletionProviderHandle>,
736 _subscription: Subscription,
737}
738
739enum ContextMenu {
740 Completions(CompletionsMenu),
741 CodeActions(CodeActionsMenu),
742}
743
744impl ContextMenu {
745 fn select_first(
746 &mut self,
747 project: Option<&Model<Project>>,
748 cx: &mut ViewContext<Editor>,
749 ) -> bool {
750 if self.visible() {
751 match self {
752 ContextMenu::Completions(menu) => menu.select_first(project, cx),
753 ContextMenu::CodeActions(menu) => menu.select_first(cx),
754 }
755 true
756 } else {
757 false
758 }
759 }
760
761 fn select_prev(
762 &mut self,
763 project: Option<&Model<Project>>,
764 cx: &mut ViewContext<Editor>,
765 ) -> bool {
766 if self.visible() {
767 match self {
768 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
769 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
770 }
771 true
772 } else {
773 false
774 }
775 }
776
777 fn select_next(
778 &mut self,
779 project: Option<&Model<Project>>,
780 cx: &mut ViewContext<Editor>,
781 ) -> bool {
782 if self.visible() {
783 match self {
784 ContextMenu::Completions(menu) => menu.select_next(project, cx),
785 ContextMenu::CodeActions(menu) => menu.select_next(cx),
786 }
787 true
788 } else {
789 false
790 }
791 }
792
793 fn select_last(
794 &mut self,
795 project: Option<&Model<Project>>,
796 cx: &mut ViewContext<Editor>,
797 ) -> bool {
798 if self.visible() {
799 match self {
800 ContextMenu::Completions(menu) => menu.select_last(project, cx),
801 ContextMenu::CodeActions(menu) => menu.select_last(cx),
802 }
803 true
804 } else {
805 false
806 }
807 }
808
809 fn visible(&self) -> bool {
810 match self {
811 ContextMenu::Completions(menu) => menu.visible(),
812 ContextMenu::CodeActions(menu) => menu.visible(),
813 }
814 }
815
816 fn render(
817 &self,
818 cursor_position: DisplayPoint,
819 style: &EditorStyle,
820 max_height: Pixels,
821 workspace: Option<WeakView<Workspace>>,
822 cx: &mut ViewContext<Editor>,
823 ) -> (ContextMenuOrigin, AnyElement) {
824 match self {
825 ContextMenu::Completions(menu) => (
826 ContextMenuOrigin::EditorPoint(cursor_position),
827 menu.render(style, max_height, workspace, cx),
828 ),
829 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
830 }
831 }
832}
833
834enum ContextMenuOrigin {
835 EditorPoint(DisplayPoint),
836 GutterIndicator(DisplayRow),
837}
838
839#[derive(Clone)]
840struct CompletionsMenu {
841 id: CompletionId,
842 initial_position: Anchor,
843 buffer: Model<Buffer>,
844 completions: Arc<RwLock<Box<[Completion]>>>,
845 match_candidates: Arc<[StringMatchCandidate]>,
846 matches: Arc<[StringMatch]>,
847 selected_item: usize,
848 scroll_handle: UniformListScrollHandle,
849 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
850}
851
852impl CompletionsMenu {
853 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
854 self.selected_item = 0;
855 self.scroll_handle.scroll_to_item(self.selected_item);
856 self.attempt_resolve_selected_completion_documentation(project, cx);
857 cx.notify();
858 }
859
860 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
861 if self.selected_item > 0 {
862 self.selected_item -= 1;
863 } else {
864 self.selected_item = self.matches.len() - 1;
865 }
866 self.scroll_handle.scroll_to_item(self.selected_item);
867 self.attempt_resolve_selected_completion_documentation(project, cx);
868 cx.notify();
869 }
870
871 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
872 if self.selected_item + 1 < self.matches.len() {
873 self.selected_item += 1;
874 } else {
875 self.selected_item = 0;
876 }
877 self.scroll_handle.scroll_to_item(self.selected_item);
878 self.attempt_resolve_selected_completion_documentation(project, cx);
879 cx.notify();
880 }
881
882 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
883 self.selected_item = self.matches.len() - 1;
884 self.scroll_handle.scroll_to_item(self.selected_item);
885 self.attempt_resolve_selected_completion_documentation(project, cx);
886 cx.notify();
887 }
888
889 fn pre_resolve_completion_documentation(
890 buffer: Model<Buffer>,
891 completions: Arc<RwLock<Box<[Completion]>>>,
892 matches: Arc<[StringMatch]>,
893 editor: &Editor,
894 cx: &mut ViewContext<Editor>,
895 ) -> Task<()> {
896 let settings = EditorSettings::get_global(cx);
897 if !settings.show_completion_documentation {
898 return Task::ready(());
899 }
900
901 let Some(provider) = editor.completion_provider.as_ref() else {
902 return Task::ready(());
903 };
904
905 let resolve_task = provider.resolve_completions(
906 buffer,
907 matches.iter().map(|m| m.candidate_id).collect(),
908 completions.clone(),
909 cx,
910 );
911
912 return cx.spawn(move |this, mut cx| async move {
913 if let Some(true) = resolve_task.await.log_err() {
914 this.update(&mut cx, |_, cx| cx.notify()).ok();
915 }
916 });
917 }
918
919 fn attempt_resolve_selected_completion_documentation(
920 &mut self,
921 project: Option<&Model<Project>>,
922 cx: &mut ViewContext<Editor>,
923 ) {
924 let settings = EditorSettings::get_global(cx);
925 if !settings.show_completion_documentation {
926 return;
927 }
928
929 let completion_index = self.matches[self.selected_item].candidate_id;
930 let Some(project) = project else {
931 return;
932 };
933
934 let resolve_task = project.update(cx, |project, cx| {
935 project.resolve_completions(
936 self.buffer.clone(),
937 vec![completion_index],
938 self.completions.clone(),
939 cx,
940 )
941 });
942
943 let delay_ms =
944 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
945 let delay = Duration::from_millis(delay_ms);
946
947 self.selected_completion_documentation_resolve_debounce
948 .lock()
949 .fire_new(delay, cx, |_, cx| {
950 cx.spawn(move |this, mut cx| async move {
951 if let Some(true) = resolve_task.await.log_err() {
952 this.update(&mut cx, |_, cx| cx.notify()).ok();
953 }
954 })
955 });
956 }
957
958 fn visible(&self) -> bool {
959 !self.matches.is_empty()
960 }
961
962 fn render(
963 &self,
964 style: &EditorStyle,
965 max_height: Pixels,
966 workspace: Option<WeakView<Workspace>>,
967 cx: &mut ViewContext<Editor>,
968 ) -> AnyElement {
969 let settings = EditorSettings::get_global(cx);
970 let show_completion_documentation = settings.show_completion_documentation;
971
972 let widest_completion_ix = self
973 .matches
974 .iter()
975 .enumerate()
976 .max_by_key(|(_, mat)| {
977 let completions = self.completions.read();
978 let completion = &completions[mat.candidate_id];
979 let documentation = &completion.documentation;
980
981 let mut len = completion.label.text.chars().count();
982 if let Some(Documentation::SingleLine(text)) = documentation {
983 if show_completion_documentation {
984 len += text.chars().count();
985 }
986 }
987
988 len
989 })
990 .map(|(ix, _)| ix);
991
992 let completions = self.completions.clone();
993 let matches = self.matches.clone();
994 let selected_item = self.selected_item;
995 let style = style.clone();
996
997 let multiline_docs = if show_completion_documentation {
998 let mat = &self.matches[selected_item];
999 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1000 Some(Documentation::MultiLinePlainText(text)) => {
1001 Some(div().child(SharedString::from(text.clone())))
1002 }
1003 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1004 Some(div().child(render_parsed_markdown(
1005 "completions_markdown",
1006 parsed,
1007 &style,
1008 workspace,
1009 cx,
1010 )))
1011 }
1012 _ => None,
1013 };
1014 multiline_docs.map(|div| {
1015 div.id("multiline_docs")
1016 .max_h(max_height)
1017 .flex_1()
1018 .px_1p5()
1019 .py_1()
1020 .min_w(px(260.))
1021 .max_w(px(640.))
1022 .w(px(500.))
1023 .overflow_y_scroll()
1024 .occlude()
1025 })
1026 } else {
1027 None
1028 };
1029
1030 let list = uniform_list(
1031 cx.view().clone(),
1032 "completions",
1033 matches.len(),
1034 move |_editor, range, cx| {
1035 let start_ix = range.start;
1036 let completions_guard = completions.read();
1037
1038 matches[range]
1039 .iter()
1040 .enumerate()
1041 .map(|(ix, mat)| {
1042 let item_ix = start_ix + ix;
1043 let candidate_id = mat.candidate_id;
1044 let completion = &completions_guard[candidate_id];
1045
1046 let documentation = if show_completion_documentation {
1047 &completion.documentation
1048 } else {
1049 &None
1050 };
1051
1052 let highlights = gpui::combine_highlights(
1053 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1054 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1055 |(range, mut highlight)| {
1056 // Ignore font weight for syntax highlighting, as we'll use it
1057 // for fuzzy matches.
1058 highlight.font_weight = None;
1059
1060 if completion.lsp_completion.deprecated.unwrap_or(false) {
1061 highlight.strikethrough = Some(StrikethroughStyle {
1062 thickness: 1.0.into(),
1063 ..Default::default()
1064 });
1065 highlight.color = Some(cx.theme().colors().text_muted);
1066 }
1067
1068 (range, highlight)
1069 },
1070 ),
1071 );
1072 let completion_label = StyledText::new(completion.label.text.clone())
1073 .with_highlights(&style.text, highlights);
1074 let documentation_label =
1075 if let Some(Documentation::SingleLine(text)) = documentation {
1076 if text.trim().is_empty() {
1077 None
1078 } else {
1079 Some(
1080 h_flex().ml_4().child(
1081 Label::new(text.clone())
1082 .size(LabelSize::Small)
1083 .color(Color::Muted),
1084 ),
1085 )
1086 }
1087 } else {
1088 None
1089 };
1090
1091 div().min_w(px(220.)).max_w(px(540.)).child(
1092 ListItem::new(mat.candidate_id)
1093 .inset(true)
1094 .selected(item_ix == selected_item)
1095 .on_click(cx.listener(move |editor, _event, cx| {
1096 cx.stop_propagation();
1097 if let Some(task) = editor.confirm_completion(
1098 &ConfirmCompletion {
1099 item_ix: Some(item_ix),
1100 },
1101 cx,
1102 ) {
1103 task.detach_and_log_err(cx)
1104 }
1105 }))
1106 .child(h_flex().overflow_hidden().child(completion_label))
1107 .end_slot::<Div>(documentation_label),
1108 )
1109 })
1110 .collect()
1111 },
1112 )
1113 .occlude()
1114 .max_h(max_height)
1115 .track_scroll(self.scroll_handle.clone())
1116 .with_width_from_item(widest_completion_ix);
1117
1118 Popover::new()
1119 .child(list)
1120 .when_some(multiline_docs, |popover, multiline_docs| {
1121 popover.aside(multiline_docs)
1122 })
1123 .into_any_element()
1124 }
1125
1126 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1127 let mut matches = if let Some(query) = query {
1128 fuzzy::match_strings(
1129 &self.match_candidates,
1130 query,
1131 query.chars().any(|c| c.is_uppercase()),
1132 100,
1133 &Default::default(),
1134 executor,
1135 )
1136 .await
1137 } else {
1138 self.match_candidates
1139 .iter()
1140 .enumerate()
1141 .map(|(candidate_id, candidate)| StringMatch {
1142 candidate_id,
1143 score: Default::default(),
1144 positions: Default::default(),
1145 string: candidate.string.clone(),
1146 })
1147 .collect()
1148 };
1149
1150 // Remove all candidates where the query's start does not match the start of any word in the candidate
1151 if let Some(query) = query {
1152 if let Some(query_start) = query.chars().next() {
1153 matches.retain(|string_match| {
1154 split_words(&string_match.string).any(|word| {
1155 // Check that the first codepoint of the word as lowercase matches the first
1156 // codepoint of the query as lowercase
1157 word.chars()
1158 .flat_map(|codepoint| codepoint.to_lowercase())
1159 .zip(query_start.to_lowercase())
1160 .all(|(word_cp, query_cp)| word_cp == query_cp)
1161 })
1162 });
1163 }
1164 }
1165
1166 let completions = self.completions.read();
1167 matches.sort_unstable_by_key(|mat| {
1168 // We do want to strike a balance here between what the language server tells us
1169 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1170 // `Creat` and there is a local variable called `CreateComponent`).
1171 // So what we do is: we bucket all matches into two buckets
1172 // - Strong matches
1173 // - Weak matches
1174 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1175 // and the Weak matches are the rest.
1176 //
1177 // For the strong matches, we sort by the language-servers score first and for the weak
1178 // matches, we prefer our fuzzy finder first.
1179 //
1180 // The thinking behind that: it's useless to take the sort_text the language-server gives
1181 // us into account when it's obviously a bad match.
1182
1183 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1184 enum MatchScore<'a> {
1185 Strong {
1186 sort_text: Option<&'a str>,
1187 score: Reverse<OrderedFloat<f64>>,
1188 sort_key: (usize, &'a str),
1189 },
1190 Weak {
1191 score: Reverse<OrderedFloat<f64>>,
1192 sort_text: Option<&'a str>,
1193 sort_key: (usize, &'a str),
1194 },
1195 }
1196
1197 let completion = &completions[mat.candidate_id];
1198 let sort_key = completion.sort_key();
1199 let sort_text = completion.lsp_completion.sort_text.as_deref();
1200 let score = Reverse(OrderedFloat(mat.score));
1201
1202 if mat.score >= 0.2 {
1203 MatchScore::Strong {
1204 sort_text,
1205 score,
1206 sort_key,
1207 }
1208 } else {
1209 MatchScore::Weak {
1210 score,
1211 sort_text,
1212 sort_key,
1213 }
1214 }
1215 });
1216
1217 for mat in &mut matches {
1218 let completion = &completions[mat.candidate_id];
1219 mat.string.clone_from(&completion.label.text);
1220 for position in &mut mat.positions {
1221 *position += completion.label.filter_range.start;
1222 }
1223 }
1224 drop(completions);
1225
1226 self.matches = matches.into();
1227 self.selected_item = 0;
1228 }
1229}
1230
1231#[derive(Clone)]
1232struct CodeActionContents {
1233 tasks: Option<Arc<ResolvedTasks>>,
1234 actions: Option<Arc<[CodeAction]>>,
1235}
1236
1237impl CodeActionContents {
1238 fn len(&self) -> usize {
1239 match (&self.tasks, &self.actions) {
1240 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1241 (Some(tasks), None) => tasks.templates.len(),
1242 (None, Some(actions)) => actions.len(),
1243 (None, None) => 0,
1244 }
1245 }
1246
1247 fn is_empty(&self) -> bool {
1248 match (&self.tasks, &self.actions) {
1249 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1250 (Some(tasks), None) => tasks.templates.is_empty(),
1251 (None, Some(actions)) => actions.is_empty(),
1252 (None, None) => true,
1253 }
1254 }
1255
1256 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1257 self.tasks
1258 .iter()
1259 .flat_map(|tasks| {
1260 tasks
1261 .templates
1262 .iter()
1263 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1264 })
1265 .chain(self.actions.iter().flat_map(|actions| {
1266 actions
1267 .iter()
1268 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1269 }))
1270 }
1271 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1272 match (&self.tasks, &self.actions) {
1273 (Some(tasks), Some(actions)) => {
1274 if index < tasks.templates.len() {
1275 tasks
1276 .templates
1277 .get(index)
1278 .cloned()
1279 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1280 } else {
1281 actions
1282 .get(index - tasks.templates.len())
1283 .cloned()
1284 .map(CodeActionsItem::CodeAction)
1285 }
1286 }
1287 (Some(tasks), None) => tasks
1288 .templates
1289 .get(index)
1290 .cloned()
1291 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1292 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1293 (None, None) => None,
1294 }
1295 }
1296}
1297
1298#[allow(clippy::large_enum_variant)]
1299#[derive(Clone)]
1300enum CodeActionsItem {
1301 Task(TaskSourceKind, ResolvedTask),
1302 CodeAction(CodeAction),
1303}
1304
1305impl CodeActionsItem {
1306 fn as_task(&self) -> Option<&ResolvedTask> {
1307 let Self::Task(_, task) = self else {
1308 return None;
1309 };
1310 Some(task)
1311 }
1312 fn as_code_action(&self) -> Option<&CodeAction> {
1313 let Self::CodeAction(action) = self else {
1314 return None;
1315 };
1316 Some(action)
1317 }
1318 fn label(&self) -> String {
1319 match self {
1320 Self::CodeAction(action) => action.lsp_action.title.clone(),
1321 Self::Task(_, task) => task.resolved_label.clone(),
1322 }
1323 }
1324}
1325
1326struct CodeActionsMenu {
1327 actions: CodeActionContents,
1328 buffer: Model<Buffer>,
1329 selected_item: usize,
1330 scroll_handle: UniformListScrollHandle,
1331 deployed_from_indicator: Option<DisplayRow>,
1332}
1333
1334impl CodeActionsMenu {
1335 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1336 self.selected_item = 0;
1337 self.scroll_handle.scroll_to_item(self.selected_item);
1338 cx.notify()
1339 }
1340
1341 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1342 if self.selected_item > 0 {
1343 self.selected_item -= 1;
1344 } else {
1345 self.selected_item = self.actions.len() - 1;
1346 }
1347 self.scroll_handle.scroll_to_item(self.selected_item);
1348 cx.notify();
1349 }
1350
1351 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1352 if self.selected_item + 1 < self.actions.len() {
1353 self.selected_item += 1;
1354 } else {
1355 self.selected_item = 0;
1356 }
1357 self.scroll_handle.scroll_to_item(self.selected_item);
1358 cx.notify();
1359 }
1360
1361 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1362 self.selected_item = self.actions.len() - 1;
1363 self.scroll_handle.scroll_to_item(self.selected_item);
1364 cx.notify()
1365 }
1366
1367 fn visible(&self) -> bool {
1368 !self.actions.is_empty()
1369 }
1370
1371 fn render(
1372 &self,
1373 cursor_position: DisplayPoint,
1374 _style: &EditorStyle,
1375 max_height: Pixels,
1376 cx: &mut ViewContext<Editor>,
1377 ) -> (ContextMenuOrigin, AnyElement) {
1378 let actions = self.actions.clone();
1379 let selected_item = self.selected_item;
1380 let element = uniform_list(
1381 cx.view().clone(),
1382 "code_actions_menu",
1383 self.actions.len(),
1384 move |_this, range, cx| {
1385 actions
1386 .iter()
1387 .skip(range.start)
1388 .take(range.end - range.start)
1389 .enumerate()
1390 .map(|(ix, action)| {
1391 let item_ix = range.start + ix;
1392 let selected = selected_item == item_ix;
1393 let colors = cx.theme().colors();
1394 div()
1395 .px_2()
1396 .text_color(colors.text)
1397 .when(selected, |style| {
1398 style
1399 .bg(colors.element_active)
1400 .text_color(colors.text_accent)
1401 })
1402 .hover(|style| {
1403 style
1404 .bg(colors.element_hover)
1405 .text_color(colors.text_accent)
1406 })
1407 .whitespace_nowrap()
1408 .when_some(action.as_code_action(), |this, action| {
1409 this.on_mouse_down(
1410 MouseButton::Left,
1411 cx.listener(move |editor, _, cx| {
1412 cx.stop_propagation();
1413 if let Some(task) = editor.confirm_code_action(
1414 &ConfirmCodeAction {
1415 item_ix: Some(item_ix),
1416 },
1417 cx,
1418 ) {
1419 task.detach_and_log_err(cx)
1420 }
1421 }),
1422 )
1423 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1424 .child(SharedString::from(action.lsp_action.title.clone()))
1425 })
1426 .when_some(action.as_task(), |this, task| {
1427 this.on_mouse_down(
1428 MouseButton::Left,
1429 cx.listener(move |editor, _, cx| {
1430 cx.stop_propagation();
1431 if let Some(task) = editor.confirm_code_action(
1432 &ConfirmCodeAction {
1433 item_ix: Some(item_ix),
1434 },
1435 cx,
1436 ) {
1437 task.detach_and_log_err(cx)
1438 }
1439 }),
1440 )
1441 .child(SharedString::from(task.resolved_label.clone()))
1442 })
1443 })
1444 .collect()
1445 },
1446 )
1447 .elevation_1(cx)
1448 .px_2()
1449 .py_1()
1450 .max_h(max_height)
1451 .occlude()
1452 .track_scroll(self.scroll_handle.clone())
1453 .with_width_from_item(
1454 self.actions
1455 .iter()
1456 .enumerate()
1457 .max_by_key(|(_, action)| match action {
1458 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1459 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1460 })
1461 .map(|(ix, _)| ix),
1462 )
1463 .into_any_element();
1464
1465 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1466 ContextMenuOrigin::GutterIndicator(row)
1467 } else {
1468 ContextMenuOrigin::EditorPoint(cursor_position)
1469 };
1470
1471 (cursor_position, element)
1472 }
1473}
1474
1475#[derive(Debug)]
1476struct ActiveDiagnosticGroup {
1477 primary_range: Range<Anchor>,
1478 primary_message: String,
1479 group_id: usize,
1480 blocks: HashMap<BlockId, Diagnostic>,
1481 is_valid: bool,
1482}
1483
1484#[derive(Serialize, Deserialize)]
1485pub struct ClipboardSelection {
1486 pub len: usize,
1487 pub is_entire_line: bool,
1488 pub first_line_indent: u32,
1489}
1490
1491#[derive(Debug)]
1492pub(crate) struct NavigationData {
1493 cursor_anchor: Anchor,
1494 cursor_position: Point,
1495 scroll_anchor: ScrollAnchor,
1496 scroll_top_row: u32,
1497}
1498
1499enum GotoDefinitionKind {
1500 Symbol,
1501 Type,
1502 Implementation,
1503}
1504
1505#[derive(Debug, Clone)]
1506enum InlayHintRefreshReason {
1507 Toggle(bool),
1508 SettingsChange(InlayHintSettings),
1509 NewLinesShown,
1510 BufferEdited(HashSet<Arc<Language>>),
1511 RefreshRequested,
1512 ExcerptsRemoved(Vec<ExcerptId>),
1513}
1514
1515impl InlayHintRefreshReason {
1516 fn description(&self) -> &'static str {
1517 match self {
1518 Self::Toggle(_) => "toggle",
1519 Self::SettingsChange(_) => "settings change",
1520 Self::NewLinesShown => "new lines shown",
1521 Self::BufferEdited(_) => "buffer edited",
1522 Self::RefreshRequested => "refresh requested",
1523 Self::ExcerptsRemoved(_) => "excerpts removed",
1524 }
1525 }
1526}
1527
1528impl Editor {
1529 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1530 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1531 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1532 Self::new(EditorMode::SingleLine, buffer, None, false, cx)
1533 }
1534
1535 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1536 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1537 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1538 Self::new(EditorMode::Full, buffer, None, false, cx)
1539 }
1540
1541 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1542 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1543 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1544 Self::new(
1545 EditorMode::AutoHeight { max_lines },
1546 buffer,
1547 None,
1548 false,
1549 cx,
1550 )
1551 }
1552
1553 pub fn for_buffer(
1554 buffer: Model<Buffer>,
1555 project: Option<Model<Project>>,
1556 cx: &mut ViewContext<Self>,
1557 ) -> Self {
1558 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1559 Self::new(EditorMode::Full, buffer, project, false, cx)
1560 }
1561
1562 pub fn for_multibuffer(
1563 buffer: Model<MultiBuffer>,
1564 project: Option<Model<Project>>,
1565 show_excerpt_controls: bool,
1566 cx: &mut ViewContext<Self>,
1567 ) -> Self {
1568 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1569 }
1570
1571 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1572 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1573 let mut clone = Self::new(
1574 self.mode,
1575 self.buffer.clone(),
1576 self.project.clone(),
1577 show_excerpt_controls,
1578 cx,
1579 );
1580 self.display_map.update(cx, |display_map, cx| {
1581 let snapshot = display_map.snapshot(cx);
1582 clone.display_map.update(cx, |display_map, cx| {
1583 display_map.set_state(&snapshot, cx);
1584 });
1585 });
1586 clone.selections.clone_state(&self.selections);
1587 clone.scroll_manager.clone_state(&self.scroll_manager);
1588 clone.searchable = self.searchable;
1589 clone
1590 }
1591
1592 fn new(
1593 mode: EditorMode,
1594 buffer: Model<MultiBuffer>,
1595 project: Option<Model<Project>>,
1596 show_excerpt_controls: bool,
1597 cx: &mut ViewContext<Self>,
1598 ) -> Self {
1599 let style = cx.text_style();
1600 let font_size = style.font_size.to_pixels(cx.rem_size());
1601 let editor = cx.view().downgrade();
1602 let fold_placeholder = FoldPlaceholder {
1603 constrain_width: true,
1604 render: Arc::new(move |fold_id, fold_range, cx| {
1605 let editor = editor.clone();
1606 div()
1607 .id(fold_id)
1608 .bg(cx.theme().colors().ghost_element_background)
1609 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1610 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1611 .rounded_sm()
1612 .size_full()
1613 .cursor_pointer()
1614 .child("⋯")
1615 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1616 .on_click(move |_, cx| {
1617 editor
1618 .update(cx, |editor, cx| {
1619 editor.unfold_ranges(
1620 [fold_range.start..fold_range.end],
1621 true,
1622 false,
1623 cx,
1624 );
1625 cx.stop_propagation();
1626 })
1627 .ok();
1628 })
1629 .into_any()
1630 }),
1631 merge_adjacent: true,
1632 };
1633 let display_map = cx.new_model(|cx| {
1634 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1635
1636 DisplayMap::new(
1637 buffer.clone(),
1638 style.font(),
1639 font_size,
1640 None,
1641 show_excerpt_controls,
1642 file_header_size,
1643 1,
1644 1,
1645 fold_placeholder,
1646 cx,
1647 )
1648 });
1649
1650 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1651
1652 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1653
1654 let soft_wrap_mode_override =
1655 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1656
1657 let mut project_subscriptions = Vec::new();
1658 if mode == EditorMode::Full {
1659 if let Some(project) = project.as_ref() {
1660 if buffer.read(cx).is_singleton() {
1661 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1662 cx.emit(EditorEvent::TitleChanged);
1663 }));
1664 }
1665 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1666 if let project::Event::RefreshInlayHints = event {
1667 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1668 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1669 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1670 let focus_handle = editor.focus_handle(cx);
1671 if focus_handle.is_focused(cx) {
1672 let snapshot = buffer.read(cx).snapshot();
1673 for (range, snippet) in snippet_edits {
1674 let editor_range =
1675 language::range_from_lsp(*range).to_offset(&snapshot);
1676 editor
1677 .insert_snippet(&[editor_range], snippet.clone(), cx)
1678 .ok();
1679 }
1680 }
1681 }
1682 }
1683 }));
1684 let task_inventory = project.read(cx).task_inventory().clone();
1685 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1686 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1687 }));
1688 }
1689 }
1690
1691 let inlay_hint_settings = inlay_hint_settings(
1692 selections.newest_anchor().head(),
1693 &buffer.read(cx).snapshot(cx),
1694 cx,
1695 );
1696 let focus_handle = cx.focus_handle();
1697 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1698 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1699
1700 let mut this = Self {
1701 focus_handle,
1702 buffer: buffer.clone(),
1703 display_map: display_map.clone(),
1704 selections,
1705 scroll_manager: ScrollManager::new(cx),
1706 columnar_selection_tail: None,
1707 add_selections_state: None,
1708 select_next_state: None,
1709 select_prev_state: None,
1710 selection_history: Default::default(),
1711 autoclose_regions: Default::default(),
1712 snippet_stack: Default::default(),
1713 select_larger_syntax_node_stack: Vec::new(),
1714 ime_transaction: Default::default(),
1715 active_diagnostics: None,
1716 soft_wrap_mode_override,
1717 completion_provider: project.clone().map(|project| Box::new(project) as _),
1718 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1719 project,
1720 blink_manager: blink_manager.clone(),
1721 show_local_selections: true,
1722 mode,
1723 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1724 show_gutter: mode == EditorMode::Full,
1725 show_line_numbers: None,
1726 show_git_diff_gutter: None,
1727 show_code_actions: None,
1728 show_wrap_guides: None,
1729 show_indent_guides: None,
1730 placeholder_text: None,
1731 highlight_order: 0,
1732 highlighted_rows: HashMap::default(),
1733 background_highlights: Default::default(),
1734 scrollbar_marker_state: ScrollbarMarkerState::default(),
1735 active_indent_guides_state: ActiveIndentGuidesState::default(),
1736 nav_history: None,
1737 context_menu: RwLock::new(None),
1738 mouse_context_menu: None,
1739 completion_tasks: Default::default(),
1740 find_all_references_task_sources: Vec::new(),
1741 next_completion_id: 0,
1742 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1743 next_inlay_id: 0,
1744 available_code_actions: Default::default(),
1745 code_actions_task: Default::default(),
1746 document_highlights_task: Default::default(),
1747 pending_rename: Default::default(),
1748 searchable: true,
1749 cursor_shape: Default::default(),
1750 current_line_highlight: EditorSettings::get_global(cx).current_line_highlight,
1751 autoindent_mode: Some(AutoindentMode::EachLine),
1752 collapse_matches: false,
1753 workspace: None,
1754 keymap_context_layers: Default::default(),
1755 input_enabled: true,
1756 use_modal_editing: mode == EditorMode::Full,
1757 read_only: false,
1758 use_autoclose: true,
1759 auto_replace_emoji_shortcode: false,
1760 leader_peer_id: None,
1761 remote_id: None,
1762 hover_state: Default::default(),
1763 hovered_link_state: Default::default(),
1764 inline_completion_provider: None,
1765 active_inline_completion: None,
1766 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1767 expanded_hunks: ExpandedHunks::default(),
1768 gutter_hovered: false,
1769 pixel_position_of_newest_cursor: None,
1770 last_bounds: None,
1771 expect_bounds_change: None,
1772 gutter_dimensions: GutterDimensions::default(),
1773 style: None,
1774 show_cursor_names: false,
1775 hovered_cursors: Default::default(),
1776 editor_actions: Default::default(),
1777 vim_replace_map: Default::default(),
1778 show_inline_completions: mode == EditorMode::Full,
1779 custom_context_menu: None,
1780 show_git_blame_gutter: false,
1781 show_git_blame_inline: false,
1782 show_git_blame_inline_delay_task: None,
1783 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1784 blame: None,
1785 blame_subscription: None,
1786 tasks: Default::default(),
1787 _subscriptions: vec![
1788 cx.observe(&buffer, Self::on_buffer_changed),
1789 cx.subscribe(&buffer, Self::on_buffer_event),
1790 cx.observe(&display_map, Self::on_display_map_changed),
1791 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1792 cx.observe_global::<SettingsStore>(Self::settings_changed),
1793 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1794 cx.observe_window_activation(|editor, cx| {
1795 let active = cx.is_window_active();
1796 editor.blink_manager.update(cx, |blink_manager, cx| {
1797 if active {
1798 blink_manager.enable(cx);
1799 } else {
1800 blink_manager.show_cursor(cx);
1801 blink_manager.disable(cx);
1802 }
1803 });
1804 }),
1805 ],
1806 tasks_update_task: None,
1807 };
1808 this.tasks_update_task = Some(this.refresh_runnables(cx));
1809 this._subscriptions.extend(project_subscriptions);
1810
1811 this.end_selection(cx);
1812 this.scroll_manager.show_scrollbar(cx);
1813
1814 if mode == EditorMode::Full {
1815 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1816 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1817
1818 if this.git_blame_inline_enabled {
1819 this.git_blame_inline_enabled = true;
1820 this.start_git_blame_inline(false, cx);
1821 }
1822 }
1823
1824 this.report_editor_event("open", None, cx);
1825 this
1826 }
1827
1828 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1829 self.mouse_context_menu
1830 .as_ref()
1831 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1832 }
1833
1834 fn key_context(&self, cx: &AppContext) -> KeyContext {
1835 let mut key_context = KeyContext::new_with_defaults();
1836 key_context.add("Editor");
1837 let mode = match self.mode {
1838 EditorMode::SingleLine => "single_line",
1839 EditorMode::AutoHeight { .. } => "auto_height",
1840 EditorMode::Full => "full",
1841 };
1842 key_context.set("mode", mode);
1843 if self.pending_rename.is_some() {
1844 key_context.add("renaming");
1845 }
1846 if self.context_menu_visible() {
1847 match self.context_menu.read().as_ref() {
1848 Some(ContextMenu::Completions(_)) => {
1849 key_context.add("menu");
1850 key_context.add("showing_completions")
1851 }
1852 Some(ContextMenu::CodeActions(_)) => {
1853 key_context.add("menu");
1854 key_context.add("showing_code_actions")
1855 }
1856 None => {}
1857 }
1858 }
1859
1860 for layer in self.keymap_context_layers.values() {
1861 key_context.extend(layer);
1862 }
1863
1864 if let Some(extension) = self
1865 .buffer
1866 .read(cx)
1867 .as_singleton()
1868 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1869 {
1870 key_context.set("extension", extension.to_string());
1871 }
1872
1873 if self.has_active_inline_completion(cx) {
1874 key_context.add("copilot_suggestion");
1875 key_context.add("inline_completion");
1876 }
1877
1878 key_context
1879 }
1880
1881 pub fn new_file(
1882 workspace: &mut Workspace,
1883 _: &workspace::NewFile,
1884 cx: &mut ViewContext<Workspace>,
1885 ) {
1886 let project = workspace.project().clone();
1887 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1888
1889 cx.spawn(|workspace, mut cx| async move {
1890 let buffer = create.await?;
1891 workspace.update(&mut cx, |workspace, cx| {
1892 workspace.add_item_to_active_pane(
1893 Box::new(
1894 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1895 ),
1896 None,
1897 cx,
1898 )
1899 })
1900 })
1901 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1902 ErrorCode::RemoteUpgradeRequired => Some(format!(
1903 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1904 e.error_tag("required").unwrap_or("the latest version")
1905 )),
1906 _ => None,
1907 });
1908 }
1909
1910 pub fn new_file_in_direction(
1911 workspace: &mut Workspace,
1912 action: &workspace::NewFileInDirection,
1913 cx: &mut ViewContext<Workspace>,
1914 ) {
1915 let project = workspace.project().clone();
1916 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1917 let direction = action.0;
1918
1919 cx.spawn(|workspace, mut cx| async move {
1920 let buffer = create.await?;
1921 workspace.update(&mut cx, move |workspace, cx| {
1922 workspace.split_item(
1923 direction,
1924 Box::new(
1925 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1926 ),
1927 cx,
1928 )
1929 })?;
1930 anyhow::Ok(())
1931 })
1932 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1933 ErrorCode::RemoteUpgradeRequired => Some(format!(
1934 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1935 e.error_tag("required").unwrap_or("the latest version")
1936 )),
1937 _ => None,
1938 });
1939 }
1940
1941 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1942 self.buffer.read(cx).replica_id()
1943 }
1944
1945 pub fn leader_peer_id(&self) -> Option<PeerId> {
1946 self.leader_peer_id
1947 }
1948
1949 pub fn buffer(&self) -> &Model<MultiBuffer> {
1950 &self.buffer
1951 }
1952
1953 pub fn workspace(&self) -> Option<View<Workspace>> {
1954 self.workspace.as_ref()?.0.upgrade()
1955 }
1956
1957 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1958 self.buffer().read(cx).title(cx)
1959 }
1960
1961 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1962 EditorSnapshot {
1963 mode: self.mode,
1964 show_gutter: self.show_gutter,
1965 show_line_numbers: self.show_line_numbers,
1966 show_git_diff_gutter: self.show_git_diff_gutter,
1967 show_code_actions: self.show_code_actions,
1968 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1969 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1970 scroll_anchor: self.scroll_manager.anchor(),
1971 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1972 placeholder_text: self.placeholder_text.clone(),
1973 is_focused: self.focus_handle.is_focused(cx),
1974 current_line_highlight: self.current_line_highlight,
1975 gutter_hovered: self.gutter_hovered,
1976 }
1977 }
1978
1979 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1980 self.buffer.read(cx).language_at(point, cx)
1981 }
1982
1983 pub fn file_at<T: ToOffset>(
1984 &self,
1985 point: T,
1986 cx: &AppContext,
1987 ) -> Option<Arc<dyn language::File>> {
1988 self.buffer.read(cx).read(cx).file_at(point).cloned()
1989 }
1990
1991 pub fn active_excerpt(
1992 &self,
1993 cx: &AppContext,
1994 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1995 self.buffer
1996 .read(cx)
1997 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1998 }
1999
2000 pub fn mode(&self) -> EditorMode {
2001 self.mode
2002 }
2003
2004 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2005 self.collaboration_hub.as_deref()
2006 }
2007
2008 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2009 self.collaboration_hub = Some(hub);
2010 }
2011
2012 pub fn set_custom_context_menu(
2013 &mut self,
2014 f: impl 'static
2015 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2016 ) {
2017 self.custom_context_menu = Some(Box::new(f))
2018 }
2019
2020 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2021 self.completion_provider = Some(provider);
2022 }
2023
2024 pub fn set_inline_completion_provider<T>(
2025 &mut self,
2026 provider: Option<Model<T>>,
2027 cx: &mut ViewContext<Self>,
2028 ) where
2029 T: InlineCompletionProvider,
2030 {
2031 self.inline_completion_provider =
2032 provider.map(|provider| RegisteredInlineCompletionProvider {
2033 _subscription: cx.observe(&provider, |this, _, cx| {
2034 if this.focus_handle.is_focused(cx) {
2035 this.update_visible_inline_completion(cx);
2036 }
2037 }),
2038 provider: Arc::new(provider),
2039 });
2040 self.refresh_inline_completion(false, cx);
2041 }
2042
2043 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
2044 self.placeholder_text.as_deref()
2045 }
2046
2047 pub fn set_placeholder_text(
2048 &mut self,
2049 placeholder_text: impl Into<Arc<str>>,
2050 cx: &mut ViewContext<Self>,
2051 ) {
2052 let placeholder_text = Some(placeholder_text.into());
2053 if self.placeholder_text != placeholder_text {
2054 self.placeholder_text = placeholder_text;
2055 cx.notify();
2056 }
2057 }
2058
2059 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2060 self.cursor_shape = cursor_shape;
2061 cx.notify();
2062 }
2063
2064 pub fn set_current_line_highlight(&mut self, current_line_highlight: CurrentLineHighlight) {
2065 self.current_line_highlight = current_line_highlight;
2066 }
2067
2068 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2069 self.collapse_matches = collapse_matches;
2070 }
2071
2072 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2073 if self.collapse_matches {
2074 return range.start..range.start;
2075 }
2076 range.clone()
2077 }
2078
2079 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2080 if self.display_map.read(cx).clip_at_line_ends != clip {
2081 self.display_map
2082 .update(cx, |map, _| map.clip_at_line_ends = clip);
2083 }
2084 }
2085
2086 pub fn set_keymap_context_layer<Tag: 'static>(
2087 &mut self,
2088 context: KeyContext,
2089 cx: &mut ViewContext<Self>,
2090 ) {
2091 self.keymap_context_layers
2092 .insert(TypeId::of::<Tag>(), context);
2093 cx.notify();
2094 }
2095
2096 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2097 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2098 cx.notify();
2099 }
2100
2101 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2102 self.input_enabled = input_enabled;
2103 }
2104
2105 pub fn set_autoindent(&mut self, autoindent: bool) {
2106 if autoindent {
2107 self.autoindent_mode = Some(AutoindentMode::EachLine);
2108 } else {
2109 self.autoindent_mode = None;
2110 }
2111 }
2112
2113 pub fn read_only(&self, cx: &AppContext) -> bool {
2114 self.read_only || self.buffer.read(cx).read_only()
2115 }
2116
2117 pub fn set_read_only(&mut self, read_only: bool) {
2118 self.read_only = read_only;
2119 }
2120
2121 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2122 self.use_autoclose = autoclose;
2123 }
2124
2125 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2126 self.auto_replace_emoji_shortcode = auto_replace;
2127 }
2128
2129 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2130 self.show_inline_completions = show_inline_completions;
2131 }
2132
2133 pub fn set_use_modal_editing(&mut self, to: bool) {
2134 self.use_modal_editing = to;
2135 }
2136
2137 pub fn use_modal_editing(&self) -> bool {
2138 self.use_modal_editing
2139 }
2140
2141 fn selections_did_change(
2142 &mut self,
2143 local: bool,
2144 old_cursor_position: &Anchor,
2145 show_completions: bool,
2146 cx: &mut ViewContext<Self>,
2147 ) {
2148 // Copy selections to primary selection buffer
2149 #[cfg(target_os = "linux")]
2150 if local {
2151 let selections = self.selections.all::<usize>(cx);
2152 let buffer_handle = self.buffer.read(cx).read(cx);
2153
2154 let mut text = String::new();
2155 for (index, selection) in selections.iter().enumerate() {
2156 let text_for_selection = buffer_handle
2157 .text_for_range(selection.start..selection.end)
2158 .collect::<String>();
2159
2160 text.push_str(&text_for_selection);
2161 if index != selections.len() - 1 {
2162 text.push('\n');
2163 }
2164 }
2165
2166 if !text.is_empty() {
2167 cx.write_to_primary(ClipboardItem::new(text));
2168 }
2169 }
2170
2171 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2172 self.buffer.update(cx, |buffer, cx| {
2173 buffer.set_active_selections(
2174 &self.selections.disjoint_anchors(),
2175 self.selections.line_mode,
2176 self.cursor_shape,
2177 cx,
2178 )
2179 });
2180 }
2181
2182 let display_map = self
2183 .display_map
2184 .update(cx, |display_map, cx| display_map.snapshot(cx));
2185 let buffer = &display_map.buffer_snapshot;
2186 self.add_selections_state = None;
2187 self.select_next_state = None;
2188 self.select_prev_state = None;
2189 self.select_larger_syntax_node_stack.clear();
2190 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2191 self.snippet_stack
2192 .invalidate(&self.selections.disjoint_anchors(), buffer);
2193 self.take_rename(false, cx);
2194
2195 let new_cursor_position = self.selections.newest_anchor().head();
2196
2197 self.push_to_nav_history(
2198 *old_cursor_position,
2199 Some(new_cursor_position.to_point(buffer)),
2200 cx,
2201 );
2202
2203 if local {
2204 let new_cursor_position = self.selections.newest_anchor().head();
2205 let mut context_menu = self.context_menu.write();
2206 let completion_menu = match context_menu.as_ref() {
2207 Some(ContextMenu::Completions(menu)) => Some(menu),
2208
2209 _ => {
2210 *context_menu = None;
2211 None
2212 }
2213 };
2214
2215 if let Some(completion_menu) = completion_menu {
2216 let cursor_position = new_cursor_position.to_offset(buffer);
2217 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2218 if kind == Some(CharKind::Word)
2219 && word_range.to_inclusive().contains(&cursor_position)
2220 {
2221 let mut completion_menu = completion_menu.clone();
2222 drop(context_menu);
2223
2224 let query = Self::completion_query(buffer, cursor_position);
2225 cx.spawn(move |this, mut cx| async move {
2226 completion_menu
2227 .filter(query.as_deref(), cx.background_executor().clone())
2228 .await;
2229
2230 this.update(&mut cx, |this, cx| {
2231 let mut context_menu = this.context_menu.write();
2232 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2233 return;
2234 };
2235
2236 if menu.id > completion_menu.id {
2237 return;
2238 }
2239
2240 *context_menu = Some(ContextMenu::Completions(completion_menu));
2241 drop(context_menu);
2242 cx.notify();
2243 })
2244 })
2245 .detach();
2246
2247 if show_completions {
2248 self.show_completions(&ShowCompletions, cx);
2249 }
2250 } else {
2251 drop(context_menu);
2252 self.hide_context_menu(cx);
2253 }
2254 } else {
2255 drop(context_menu);
2256 }
2257
2258 hide_hover(self, cx);
2259
2260 if old_cursor_position.to_display_point(&display_map).row()
2261 != new_cursor_position.to_display_point(&display_map).row()
2262 {
2263 self.available_code_actions.take();
2264 }
2265 self.refresh_code_actions(cx);
2266 self.refresh_document_highlights(cx);
2267 refresh_matching_bracket_highlights(self, cx);
2268 self.discard_inline_completion(false, cx);
2269 if self.git_blame_inline_enabled {
2270 self.start_inline_blame_timer(cx);
2271 }
2272 }
2273
2274 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2275 cx.emit(EditorEvent::SelectionsChanged { local });
2276
2277 if self.selections.disjoint_anchors().len() == 1 {
2278 cx.emit(SearchEvent::ActiveMatchChanged)
2279 }
2280
2281 cx.notify();
2282 }
2283
2284 pub fn change_selections<R>(
2285 &mut self,
2286 autoscroll: Option<Autoscroll>,
2287 cx: &mut ViewContext<Self>,
2288 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2289 ) -> R {
2290 self.change_selections_inner(autoscroll, true, cx, change)
2291 }
2292
2293 pub fn change_selections_inner<R>(
2294 &mut self,
2295 autoscroll: Option<Autoscroll>,
2296 request_completions: bool,
2297 cx: &mut ViewContext<Self>,
2298 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2299 ) -> R {
2300 let old_cursor_position = self.selections.newest_anchor().head();
2301 self.push_to_selection_history();
2302
2303 let (changed, result) = self.selections.change_with(cx, change);
2304
2305 if changed {
2306 if let Some(autoscroll) = autoscroll {
2307 self.request_autoscroll(autoscroll, cx);
2308 }
2309 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2310 }
2311
2312 result
2313 }
2314
2315 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2316 where
2317 I: IntoIterator<Item = (Range<S>, T)>,
2318 S: ToOffset,
2319 T: Into<Arc<str>>,
2320 {
2321 if self.read_only(cx) {
2322 return;
2323 }
2324
2325 self.buffer
2326 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2327 }
2328
2329 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2330 where
2331 I: IntoIterator<Item = (Range<S>, T)>,
2332 S: ToOffset,
2333 T: Into<Arc<str>>,
2334 {
2335 if self.read_only(cx) {
2336 return;
2337 }
2338
2339 self.buffer.update(cx, |buffer, cx| {
2340 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2341 });
2342 }
2343
2344 pub fn edit_with_block_indent<I, S, T>(
2345 &mut self,
2346 edits: I,
2347 original_indent_columns: Vec<u32>,
2348 cx: &mut ViewContext<Self>,
2349 ) where
2350 I: IntoIterator<Item = (Range<S>, T)>,
2351 S: ToOffset,
2352 T: Into<Arc<str>>,
2353 {
2354 if self.read_only(cx) {
2355 return;
2356 }
2357
2358 self.buffer.update(cx, |buffer, cx| {
2359 buffer.edit(
2360 edits,
2361 Some(AutoindentMode::Block {
2362 original_indent_columns,
2363 }),
2364 cx,
2365 )
2366 });
2367 }
2368
2369 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2370 self.hide_context_menu(cx);
2371
2372 match phase {
2373 SelectPhase::Begin {
2374 position,
2375 add,
2376 click_count,
2377 } => self.begin_selection(position, add, click_count, cx),
2378 SelectPhase::BeginColumnar {
2379 position,
2380 goal_column,
2381 reset,
2382 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2383 SelectPhase::Extend {
2384 position,
2385 click_count,
2386 } => self.extend_selection(position, click_count, cx),
2387 SelectPhase::Update {
2388 position,
2389 goal_column,
2390 scroll_delta,
2391 } => self.update_selection(position, goal_column, scroll_delta, cx),
2392 SelectPhase::End => self.end_selection(cx),
2393 }
2394 }
2395
2396 fn extend_selection(
2397 &mut self,
2398 position: DisplayPoint,
2399 click_count: usize,
2400 cx: &mut ViewContext<Self>,
2401 ) {
2402 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2403 let tail = self.selections.newest::<usize>(cx).tail();
2404 self.begin_selection(position, false, click_count, cx);
2405
2406 let position = position.to_offset(&display_map, Bias::Left);
2407 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2408
2409 let mut pending_selection = self
2410 .selections
2411 .pending_anchor()
2412 .expect("extend_selection not called with pending selection");
2413 if position >= tail {
2414 pending_selection.start = tail_anchor;
2415 } else {
2416 pending_selection.end = tail_anchor;
2417 pending_selection.reversed = true;
2418 }
2419
2420 let mut pending_mode = self.selections.pending_mode().unwrap();
2421 match &mut pending_mode {
2422 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2423 _ => {}
2424 }
2425
2426 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2427 s.set_pending(pending_selection, pending_mode)
2428 });
2429 }
2430
2431 fn begin_selection(
2432 &mut self,
2433 position: DisplayPoint,
2434 add: bool,
2435 click_count: usize,
2436 cx: &mut ViewContext<Self>,
2437 ) {
2438 if !self.focus_handle.is_focused(cx) {
2439 cx.focus(&self.focus_handle);
2440 }
2441
2442 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2443 let buffer = &display_map.buffer_snapshot;
2444 let newest_selection = self.selections.newest_anchor().clone();
2445 let position = display_map.clip_point(position, Bias::Left);
2446
2447 let start;
2448 let end;
2449 let mode;
2450 let auto_scroll;
2451 match click_count {
2452 1 => {
2453 start = buffer.anchor_before(position.to_point(&display_map));
2454 end = start;
2455 mode = SelectMode::Character;
2456 auto_scroll = true;
2457 }
2458 2 => {
2459 let range = movement::surrounding_word(&display_map, position);
2460 start = buffer.anchor_before(range.start.to_point(&display_map));
2461 end = buffer.anchor_before(range.end.to_point(&display_map));
2462 mode = SelectMode::Word(start..end);
2463 auto_scroll = true;
2464 }
2465 3 => {
2466 let position = display_map
2467 .clip_point(position, Bias::Left)
2468 .to_point(&display_map);
2469 let line_start = display_map.prev_line_boundary(position).0;
2470 let next_line_start = buffer.clip_point(
2471 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2472 Bias::Left,
2473 );
2474 start = buffer.anchor_before(line_start);
2475 end = buffer.anchor_before(next_line_start);
2476 mode = SelectMode::Line(start..end);
2477 auto_scroll = true;
2478 }
2479 _ => {
2480 start = buffer.anchor_before(0);
2481 end = buffer.anchor_before(buffer.len());
2482 mode = SelectMode::All;
2483 auto_scroll = false;
2484 }
2485 }
2486
2487 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2488 if !add {
2489 s.clear_disjoint();
2490 } else if click_count > 1 {
2491 s.delete(newest_selection.id)
2492 }
2493
2494 s.set_pending_anchor_range(start..end, mode);
2495 });
2496 }
2497
2498 fn begin_columnar_selection(
2499 &mut self,
2500 position: DisplayPoint,
2501 goal_column: u32,
2502 reset: bool,
2503 cx: &mut ViewContext<Self>,
2504 ) {
2505 if !self.focus_handle.is_focused(cx) {
2506 cx.focus(&self.focus_handle);
2507 }
2508
2509 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2510
2511 if reset {
2512 let pointer_position = display_map
2513 .buffer_snapshot
2514 .anchor_before(position.to_point(&display_map));
2515
2516 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2517 s.clear_disjoint();
2518 s.set_pending_anchor_range(
2519 pointer_position..pointer_position,
2520 SelectMode::Character,
2521 );
2522 });
2523 }
2524
2525 let tail = self.selections.newest::<Point>(cx).tail();
2526 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2527
2528 if !reset {
2529 self.select_columns(
2530 tail.to_display_point(&display_map),
2531 position,
2532 goal_column,
2533 &display_map,
2534 cx,
2535 );
2536 }
2537 }
2538
2539 fn update_selection(
2540 &mut self,
2541 position: DisplayPoint,
2542 goal_column: u32,
2543 scroll_delta: gpui::Point<f32>,
2544 cx: &mut ViewContext<Self>,
2545 ) {
2546 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2547
2548 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2549 let tail = tail.to_display_point(&display_map);
2550 self.select_columns(tail, position, goal_column, &display_map, cx);
2551 } else if let Some(mut pending) = self.selections.pending_anchor() {
2552 let buffer = self.buffer.read(cx).snapshot(cx);
2553 let head;
2554 let tail;
2555 let mode = self.selections.pending_mode().unwrap();
2556 match &mode {
2557 SelectMode::Character => {
2558 head = position.to_point(&display_map);
2559 tail = pending.tail().to_point(&buffer);
2560 }
2561 SelectMode::Word(original_range) => {
2562 let original_display_range = original_range.start.to_display_point(&display_map)
2563 ..original_range.end.to_display_point(&display_map);
2564 let original_buffer_range = original_display_range.start.to_point(&display_map)
2565 ..original_display_range.end.to_point(&display_map);
2566 if movement::is_inside_word(&display_map, position)
2567 || original_display_range.contains(&position)
2568 {
2569 let word_range = movement::surrounding_word(&display_map, position);
2570 if word_range.start < original_display_range.start {
2571 head = word_range.start.to_point(&display_map);
2572 } else {
2573 head = word_range.end.to_point(&display_map);
2574 }
2575 } else {
2576 head = position.to_point(&display_map);
2577 }
2578
2579 if head <= original_buffer_range.start {
2580 tail = original_buffer_range.end;
2581 } else {
2582 tail = original_buffer_range.start;
2583 }
2584 }
2585 SelectMode::Line(original_range) => {
2586 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2587
2588 let position = display_map
2589 .clip_point(position, Bias::Left)
2590 .to_point(&display_map);
2591 let line_start = display_map.prev_line_boundary(position).0;
2592 let next_line_start = buffer.clip_point(
2593 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2594 Bias::Left,
2595 );
2596
2597 if line_start < original_range.start {
2598 head = line_start
2599 } else {
2600 head = next_line_start
2601 }
2602
2603 if head <= original_range.start {
2604 tail = original_range.end;
2605 } else {
2606 tail = original_range.start;
2607 }
2608 }
2609 SelectMode::All => {
2610 return;
2611 }
2612 };
2613
2614 if head < tail {
2615 pending.start = buffer.anchor_before(head);
2616 pending.end = buffer.anchor_before(tail);
2617 pending.reversed = true;
2618 } else {
2619 pending.start = buffer.anchor_before(tail);
2620 pending.end = buffer.anchor_before(head);
2621 pending.reversed = false;
2622 }
2623
2624 self.change_selections(None, cx, |s| {
2625 s.set_pending(pending, mode);
2626 });
2627 } else {
2628 log::error!("update_selection dispatched with no pending selection");
2629 return;
2630 }
2631
2632 self.apply_scroll_delta(scroll_delta, cx);
2633 cx.notify();
2634 }
2635
2636 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2637 self.columnar_selection_tail.take();
2638 if self.selections.pending_anchor().is_some() {
2639 let selections = self.selections.all::<usize>(cx);
2640 self.change_selections(None, cx, |s| {
2641 s.select(selections);
2642 s.clear_pending();
2643 });
2644 }
2645 }
2646
2647 fn select_columns(
2648 &mut self,
2649 tail: DisplayPoint,
2650 head: DisplayPoint,
2651 goal_column: u32,
2652 display_map: &DisplaySnapshot,
2653 cx: &mut ViewContext<Self>,
2654 ) {
2655 let start_row = cmp::min(tail.row(), head.row());
2656 let end_row = cmp::max(tail.row(), head.row());
2657 let start_column = cmp::min(tail.column(), goal_column);
2658 let end_column = cmp::max(tail.column(), goal_column);
2659 let reversed = start_column < tail.column();
2660
2661 let selection_ranges = (start_row.0..=end_row.0)
2662 .map(DisplayRow)
2663 .filter_map(|row| {
2664 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2665 let start = display_map
2666 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2667 .to_point(display_map);
2668 let end = display_map
2669 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2670 .to_point(display_map);
2671 if reversed {
2672 Some(end..start)
2673 } else {
2674 Some(start..end)
2675 }
2676 } else {
2677 None
2678 }
2679 })
2680 .collect::<Vec<_>>();
2681
2682 self.change_selections(None, cx, |s| {
2683 s.select_ranges(selection_ranges);
2684 });
2685 cx.notify();
2686 }
2687
2688 pub fn has_pending_nonempty_selection(&self) -> bool {
2689 let pending_nonempty_selection = match self.selections.pending_anchor() {
2690 Some(Selection { start, end, .. }) => start != end,
2691 None => false,
2692 };
2693 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2694 }
2695
2696 pub fn has_pending_selection(&self) -> bool {
2697 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2698 }
2699
2700 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2701 self.clear_expanded_diff_hunks(cx);
2702 if self.dismiss_menus_and_popups(true, cx) {
2703 return;
2704 }
2705
2706 if self.mode == EditorMode::Full {
2707 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2708 return;
2709 }
2710 }
2711
2712 cx.propagate();
2713 }
2714
2715 pub fn dismiss_menus_and_popups(
2716 &mut self,
2717 should_report_inline_completion_event: bool,
2718 cx: &mut ViewContext<Self>,
2719 ) -> bool {
2720 if self.take_rename(false, cx).is_some() {
2721 return true;
2722 }
2723
2724 if hide_hover(self, cx) {
2725 return true;
2726 }
2727
2728 if self.hide_context_menu(cx).is_some() {
2729 return true;
2730 }
2731
2732 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2733 return true;
2734 }
2735
2736 if self.snippet_stack.pop().is_some() {
2737 return true;
2738 }
2739
2740 if self.mode == EditorMode::Full {
2741 if self.active_diagnostics.is_some() {
2742 self.dismiss_diagnostics(cx);
2743 return true;
2744 }
2745 }
2746
2747 false
2748 }
2749
2750 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2751 let text: Arc<str> = text.into();
2752
2753 if self.read_only(cx) {
2754 return;
2755 }
2756
2757 let selections = self.selections.all_adjusted(cx);
2758 let mut brace_inserted = false;
2759 let mut edits = Vec::new();
2760 let mut new_selections = Vec::with_capacity(selections.len());
2761 let mut new_autoclose_regions = Vec::new();
2762 let snapshot = self.buffer.read(cx).read(cx);
2763
2764 for (selection, autoclose_region) in
2765 self.selections_with_autoclose_regions(selections, &snapshot)
2766 {
2767 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2768 // Determine if the inserted text matches the opening or closing
2769 // bracket of any of this language's bracket pairs.
2770 let mut bracket_pair = None;
2771 let mut is_bracket_pair_start = false;
2772 let mut is_bracket_pair_end = false;
2773 if !text.is_empty() {
2774 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2775 // and they are removing the character that triggered IME popup.
2776 for (pair, enabled) in scope.brackets() {
2777 if !pair.close {
2778 continue;
2779 }
2780
2781 if enabled && pair.start.ends_with(text.as_ref()) {
2782 bracket_pair = Some(pair.clone());
2783 is_bracket_pair_start = true;
2784 break;
2785 }
2786 if pair.end.as_str() == text.as_ref() {
2787 bracket_pair = Some(pair.clone());
2788 is_bracket_pair_end = true;
2789 break;
2790 }
2791 }
2792 }
2793
2794 if let Some(bracket_pair) = bracket_pair {
2795 if selection.is_empty() {
2796 if is_bracket_pair_start {
2797 let prefix_len = bracket_pair.start.len() - text.len();
2798
2799 // If the inserted text is a suffix of an opening bracket and the
2800 // selection is preceded by the rest of the opening bracket, then
2801 // insert the closing bracket.
2802 let following_text_allows_autoclose = snapshot
2803 .chars_at(selection.start)
2804 .next()
2805 .map_or(true, |c| scope.should_autoclose_before(c));
2806 let preceding_text_matches_prefix = prefix_len == 0
2807 || (selection.start.column >= (prefix_len as u32)
2808 && snapshot.contains_str_at(
2809 Point::new(
2810 selection.start.row,
2811 selection.start.column - (prefix_len as u32),
2812 ),
2813 &bracket_pair.start[..prefix_len],
2814 ));
2815 let autoclose = self.use_autoclose
2816 && snapshot.settings_at(selection.start, cx).use_autoclose;
2817 if autoclose
2818 && following_text_allows_autoclose
2819 && preceding_text_matches_prefix
2820 {
2821 let anchor = snapshot.anchor_before(selection.end);
2822 new_selections.push((selection.map(|_| anchor), text.len()));
2823 new_autoclose_regions.push((
2824 anchor,
2825 text.len(),
2826 selection.id,
2827 bracket_pair.clone(),
2828 ));
2829 edits.push((
2830 selection.range(),
2831 format!("{}{}", text, bracket_pair.end).into(),
2832 ));
2833 brace_inserted = true;
2834 continue;
2835 }
2836 }
2837
2838 if let Some(region) = autoclose_region {
2839 // If the selection is followed by an auto-inserted closing bracket,
2840 // then don't insert that closing bracket again; just move the selection
2841 // past the closing bracket.
2842 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2843 && text.as_ref() == region.pair.end.as_str();
2844 if should_skip {
2845 let anchor = snapshot.anchor_after(selection.end);
2846 new_selections
2847 .push((selection.map(|_| anchor), region.pair.end.len()));
2848 continue;
2849 }
2850 }
2851
2852 let always_treat_brackets_as_autoclosed = snapshot
2853 .settings_at(selection.start, cx)
2854 .always_treat_brackets_as_autoclosed;
2855 if always_treat_brackets_as_autoclosed
2856 && is_bracket_pair_end
2857 && snapshot.contains_str_at(selection.end, text.as_ref())
2858 {
2859 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2860 // and the inserted text is a closing bracket and the selection is followed
2861 // by the closing bracket then move the selection past the closing bracket.
2862 let anchor = snapshot.anchor_after(selection.end);
2863 new_selections.push((selection.map(|_| anchor), text.len()));
2864 continue;
2865 }
2866 }
2867 // If an opening bracket is 1 character long and is typed while
2868 // text is selected, then surround that text with the bracket pair.
2869 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2870 edits.push((selection.start..selection.start, text.clone()));
2871 edits.push((
2872 selection.end..selection.end,
2873 bracket_pair.end.as_str().into(),
2874 ));
2875 brace_inserted = true;
2876 new_selections.push((
2877 Selection {
2878 id: selection.id,
2879 start: snapshot.anchor_after(selection.start),
2880 end: snapshot.anchor_before(selection.end),
2881 reversed: selection.reversed,
2882 goal: selection.goal,
2883 },
2884 0,
2885 ));
2886 continue;
2887 }
2888 }
2889 }
2890
2891 if self.auto_replace_emoji_shortcode
2892 && selection.is_empty()
2893 && text.as_ref().ends_with(':')
2894 {
2895 if let Some(possible_emoji_short_code) =
2896 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2897 {
2898 if !possible_emoji_short_code.is_empty() {
2899 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2900 let emoji_shortcode_start = Point::new(
2901 selection.start.row,
2902 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2903 );
2904
2905 // Remove shortcode from buffer
2906 edits.push((
2907 emoji_shortcode_start..selection.start,
2908 "".to_string().into(),
2909 ));
2910 new_selections.push((
2911 Selection {
2912 id: selection.id,
2913 start: snapshot.anchor_after(emoji_shortcode_start),
2914 end: snapshot.anchor_before(selection.start),
2915 reversed: selection.reversed,
2916 goal: selection.goal,
2917 },
2918 0,
2919 ));
2920
2921 // Insert emoji
2922 let selection_start_anchor = snapshot.anchor_after(selection.start);
2923 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2924 edits.push((selection.start..selection.end, emoji.to_string().into()));
2925
2926 continue;
2927 }
2928 }
2929 }
2930 }
2931
2932 // If not handling any auto-close operation, then just replace the selected
2933 // text with the given input and move the selection to the end of the
2934 // newly inserted text.
2935 let anchor = snapshot.anchor_after(selection.end);
2936 new_selections.push((selection.map(|_| anchor), 0));
2937 edits.push((selection.start..selection.end, text.clone()));
2938 }
2939
2940 drop(snapshot);
2941 self.transact(cx, |this, cx| {
2942 this.buffer.update(cx, |buffer, cx| {
2943 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2944 });
2945
2946 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2947 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2948 let snapshot = this.buffer.read(cx).read(cx);
2949 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2950 .zip(new_selection_deltas)
2951 .map(|(selection, delta)| Selection {
2952 id: selection.id,
2953 start: selection.start + delta,
2954 end: selection.end + delta,
2955 reversed: selection.reversed,
2956 goal: SelectionGoal::None,
2957 })
2958 .collect::<Vec<_>>();
2959
2960 let mut i = 0;
2961 for (position, delta, selection_id, pair) in new_autoclose_regions {
2962 let position = position.to_offset(&snapshot) + delta;
2963 let start = snapshot.anchor_before(position);
2964 let end = snapshot.anchor_after(position);
2965 while let Some(existing_state) = this.autoclose_regions.get(i) {
2966 match existing_state.range.start.cmp(&start, &snapshot) {
2967 Ordering::Less => i += 1,
2968 Ordering::Greater => break,
2969 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2970 Ordering::Less => i += 1,
2971 Ordering::Equal => break,
2972 Ordering::Greater => break,
2973 },
2974 }
2975 }
2976 this.autoclose_regions.insert(
2977 i,
2978 AutocloseRegion {
2979 selection_id,
2980 range: start..end,
2981 pair,
2982 },
2983 );
2984 }
2985
2986 drop(snapshot);
2987 let had_active_inline_completion = this.has_active_inline_completion(cx);
2988 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2989 s.select(new_selections)
2990 });
2991
2992 if brace_inserted {
2993 // If we inserted a brace while composing text (i.e. typing `"` on a
2994 // Brazilian keyboard), exit the composing state because most likely
2995 // the user wanted to surround the selection.
2996 this.unmark_text(cx);
2997 } else if EditorSettings::get_global(cx).use_on_type_format {
2998 if let Some(on_type_format_task) =
2999 this.trigger_on_type_formatting(text.to_string(), cx)
3000 {
3001 on_type_format_task.detach_and_log_err(cx);
3002 }
3003 }
3004
3005 let trigger_in_words = !had_active_inline_completion;
3006 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3007 this.refresh_inline_completion(true, cx);
3008 });
3009 }
3010
3011 fn find_possible_emoji_shortcode_at_position(
3012 snapshot: &MultiBufferSnapshot,
3013 position: Point,
3014 ) -> Option<String> {
3015 let mut chars = Vec::new();
3016 let mut found_colon = false;
3017 for char in snapshot.reversed_chars_at(position).take(100) {
3018 // Found a possible emoji shortcode in the middle of the buffer
3019 if found_colon {
3020 if char.is_whitespace() {
3021 chars.reverse();
3022 return Some(chars.iter().collect());
3023 }
3024 // If the previous character is not a whitespace, we are in the middle of a word
3025 // and we only want to complete the shortcode if the word is made up of other emojis
3026 let mut containing_word = String::new();
3027 for ch in snapshot
3028 .reversed_chars_at(position)
3029 .skip(chars.len() + 1)
3030 .take(100)
3031 {
3032 if ch.is_whitespace() {
3033 break;
3034 }
3035 containing_word.push(ch);
3036 }
3037 let containing_word = containing_word.chars().rev().collect::<String>();
3038 if util::word_consists_of_emojis(containing_word.as_str()) {
3039 chars.reverse();
3040 return Some(chars.iter().collect());
3041 }
3042 }
3043
3044 if char.is_whitespace() || !char.is_ascii() {
3045 return None;
3046 }
3047 if char == ':' {
3048 found_colon = true;
3049 } else {
3050 chars.push(char);
3051 }
3052 }
3053 // Found a possible emoji shortcode at the beginning of the buffer
3054 chars.reverse();
3055 Some(chars.iter().collect())
3056 }
3057
3058 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3059 self.transact(cx, |this, cx| {
3060 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3061 let selections = this.selections.all::<usize>(cx);
3062 let multi_buffer = this.buffer.read(cx);
3063 let buffer = multi_buffer.snapshot(cx);
3064 selections
3065 .iter()
3066 .map(|selection| {
3067 let start_point = selection.start.to_point(&buffer);
3068 let mut indent =
3069 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3070 indent.len = cmp::min(indent.len, start_point.column);
3071 let start = selection.start;
3072 let end = selection.end;
3073 let selection_is_empty = start == end;
3074 let language_scope = buffer.language_scope_at(start);
3075 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3076 &language_scope
3077 {
3078 let leading_whitespace_len = buffer
3079 .reversed_chars_at(start)
3080 .take_while(|c| c.is_whitespace() && *c != '\n')
3081 .map(|c| c.len_utf8())
3082 .sum::<usize>();
3083
3084 let trailing_whitespace_len = buffer
3085 .chars_at(end)
3086 .take_while(|c| c.is_whitespace() && *c != '\n')
3087 .map(|c| c.len_utf8())
3088 .sum::<usize>();
3089
3090 let insert_extra_newline =
3091 language.brackets().any(|(pair, enabled)| {
3092 let pair_start = pair.start.trim_end();
3093 let pair_end = pair.end.trim_start();
3094
3095 enabled
3096 && pair.newline
3097 && buffer.contains_str_at(
3098 end + trailing_whitespace_len,
3099 pair_end,
3100 )
3101 && buffer.contains_str_at(
3102 (start - leading_whitespace_len)
3103 .saturating_sub(pair_start.len()),
3104 pair_start,
3105 )
3106 });
3107
3108 // Comment extension on newline is allowed only for cursor selections
3109 let comment_delimiter = maybe!({
3110 if !selection_is_empty {
3111 return None;
3112 }
3113
3114 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3115 return None;
3116 }
3117
3118 let delimiters = language.line_comment_prefixes();
3119 let max_len_of_delimiter =
3120 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3121 let (snapshot, range) =
3122 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3123
3124 let mut index_of_first_non_whitespace = 0;
3125 let comment_candidate = snapshot
3126 .chars_for_range(range)
3127 .skip_while(|c| {
3128 let should_skip = c.is_whitespace();
3129 if should_skip {
3130 index_of_first_non_whitespace += 1;
3131 }
3132 should_skip
3133 })
3134 .take(max_len_of_delimiter)
3135 .collect::<String>();
3136 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3137 comment_candidate.starts_with(comment_prefix.as_ref())
3138 })?;
3139 let cursor_is_placed_after_comment_marker =
3140 index_of_first_non_whitespace + comment_prefix.len()
3141 <= start_point.column as usize;
3142 if cursor_is_placed_after_comment_marker {
3143 Some(comment_prefix.clone())
3144 } else {
3145 None
3146 }
3147 });
3148 (comment_delimiter, insert_extra_newline)
3149 } else {
3150 (None, false)
3151 };
3152
3153 let capacity_for_delimiter = comment_delimiter
3154 .as_deref()
3155 .map(str::len)
3156 .unwrap_or_default();
3157 let mut new_text =
3158 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3159 new_text.push_str("\n");
3160 new_text.extend(indent.chars());
3161 if let Some(delimiter) = &comment_delimiter {
3162 new_text.push_str(&delimiter);
3163 }
3164 if insert_extra_newline {
3165 new_text = new_text.repeat(2);
3166 }
3167
3168 let anchor = buffer.anchor_after(end);
3169 let new_selection = selection.map(|_| anchor);
3170 (
3171 (start..end, new_text),
3172 (insert_extra_newline, new_selection),
3173 )
3174 })
3175 .unzip()
3176 };
3177
3178 this.edit_with_autoindent(edits, cx);
3179 let buffer = this.buffer.read(cx).snapshot(cx);
3180 let new_selections = selection_fixup_info
3181 .into_iter()
3182 .map(|(extra_newline_inserted, new_selection)| {
3183 let mut cursor = new_selection.end.to_point(&buffer);
3184 if extra_newline_inserted {
3185 cursor.row -= 1;
3186 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3187 }
3188 new_selection.map(|_| cursor)
3189 })
3190 .collect();
3191
3192 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3193 this.refresh_inline_completion(true, cx);
3194 });
3195 }
3196
3197 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3198 let buffer = self.buffer.read(cx);
3199 let snapshot = buffer.snapshot(cx);
3200
3201 let mut edits = Vec::new();
3202 let mut rows = Vec::new();
3203
3204 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3205 let cursor = selection.head();
3206 let row = cursor.row;
3207
3208 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3209
3210 let newline = "\n".to_string();
3211 edits.push((start_of_line..start_of_line, newline));
3212
3213 rows.push(row + rows_inserted as u32);
3214 }
3215
3216 self.transact(cx, |editor, cx| {
3217 editor.edit(edits, cx);
3218
3219 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3220 let mut index = 0;
3221 s.move_cursors_with(|map, _, _| {
3222 let row = rows[index];
3223 index += 1;
3224
3225 let point = Point::new(row, 0);
3226 let boundary = map.next_line_boundary(point).1;
3227 let clipped = map.clip_point(boundary, Bias::Left);
3228
3229 (clipped, SelectionGoal::None)
3230 });
3231 });
3232
3233 let mut indent_edits = Vec::new();
3234 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3235 for row in rows {
3236 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3237 for (row, indent) in indents {
3238 if indent.len == 0 {
3239 continue;
3240 }
3241
3242 let text = match indent.kind {
3243 IndentKind::Space => " ".repeat(indent.len as usize),
3244 IndentKind::Tab => "\t".repeat(indent.len as usize),
3245 };
3246 let point = Point::new(row.0, 0);
3247 indent_edits.push((point..point, text));
3248 }
3249 }
3250 editor.edit(indent_edits, cx);
3251 });
3252 }
3253
3254 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3255 let buffer = self.buffer.read(cx);
3256 let snapshot = buffer.snapshot(cx);
3257
3258 let mut edits = Vec::new();
3259 let mut rows = Vec::new();
3260 let mut rows_inserted = 0;
3261
3262 for selection in self.selections.all_adjusted(cx) {
3263 let cursor = selection.head();
3264 let row = cursor.row;
3265
3266 let point = Point::new(row + 1, 0);
3267 let start_of_line = snapshot.clip_point(point, Bias::Left);
3268
3269 let newline = "\n".to_string();
3270 edits.push((start_of_line..start_of_line, newline));
3271
3272 rows_inserted += 1;
3273 rows.push(row + rows_inserted);
3274 }
3275
3276 self.transact(cx, |editor, cx| {
3277 editor.edit(edits, cx);
3278
3279 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3280 let mut index = 0;
3281 s.move_cursors_with(|map, _, _| {
3282 let row = rows[index];
3283 index += 1;
3284
3285 let point = Point::new(row, 0);
3286 let boundary = map.next_line_boundary(point).1;
3287 let clipped = map.clip_point(boundary, Bias::Left);
3288
3289 (clipped, SelectionGoal::None)
3290 });
3291 });
3292
3293 let mut indent_edits = Vec::new();
3294 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3295 for row in rows {
3296 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3297 for (row, indent) in indents {
3298 if indent.len == 0 {
3299 continue;
3300 }
3301
3302 let text = match indent.kind {
3303 IndentKind::Space => " ".repeat(indent.len as usize),
3304 IndentKind::Tab => "\t".repeat(indent.len as usize),
3305 };
3306 let point = Point::new(row.0, 0);
3307 indent_edits.push((point..point, text));
3308 }
3309 }
3310 editor.edit(indent_edits, cx);
3311 });
3312 }
3313
3314 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3315 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3316 original_indent_columns: Vec::new(),
3317 });
3318 self.insert_with_autoindent_mode(text, autoindent, cx);
3319 }
3320
3321 fn insert_with_autoindent_mode(
3322 &mut self,
3323 text: &str,
3324 autoindent_mode: Option<AutoindentMode>,
3325 cx: &mut ViewContext<Self>,
3326 ) {
3327 if self.read_only(cx) {
3328 return;
3329 }
3330
3331 let text: Arc<str> = text.into();
3332 self.transact(cx, |this, cx| {
3333 let old_selections = this.selections.all_adjusted(cx);
3334 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3335 let anchors = {
3336 let snapshot = buffer.read(cx);
3337 old_selections
3338 .iter()
3339 .map(|s| {
3340 let anchor = snapshot.anchor_after(s.head());
3341 s.map(|_| anchor)
3342 })
3343 .collect::<Vec<_>>()
3344 };
3345 buffer.edit(
3346 old_selections
3347 .iter()
3348 .map(|s| (s.start..s.end, text.clone())),
3349 autoindent_mode,
3350 cx,
3351 );
3352 anchors
3353 });
3354
3355 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3356 s.select_anchors(selection_anchors);
3357 })
3358 });
3359 }
3360
3361 fn trigger_completion_on_input(
3362 &mut self,
3363 text: &str,
3364 trigger_in_words: bool,
3365 cx: &mut ViewContext<Self>,
3366 ) {
3367 if self.is_completion_trigger(text, trigger_in_words, cx) {
3368 self.show_completions(&ShowCompletions, cx);
3369 } else {
3370 self.hide_context_menu(cx);
3371 }
3372 }
3373
3374 fn is_completion_trigger(
3375 &self,
3376 text: &str,
3377 trigger_in_words: bool,
3378 cx: &mut ViewContext<Self>,
3379 ) -> bool {
3380 let position = self.selections.newest_anchor().head();
3381 let multibuffer = self.buffer.read(cx);
3382 let Some(buffer) = position
3383 .buffer_id
3384 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3385 else {
3386 return false;
3387 };
3388
3389 if let Some(completion_provider) = &self.completion_provider {
3390 completion_provider.is_completion_trigger(
3391 &buffer,
3392 position.text_anchor,
3393 text,
3394 trigger_in_words,
3395 cx,
3396 )
3397 } else {
3398 false
3399 }
3400 }
3401
3402 /// If any empty selections is touching the start of its innermost containing autoclose
3403 /// region, expand it to select the brackets.
3404 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3405 let selections = self.selections.all::<usize>(cx);
3406 let buffer = self.buffer.read(cx).read(cx);
3407 let new_selections = self
3408 .selections_with_autoclose_regions(selections, &buffer)
3409 .map(|(mut selection, region)| {
3410 if !selection.is_empty() {
3411 return selection;
3412 }
3413
3414 if let Some(region) = region {
3415 let mut range = region.range.to_offset(&buffer);
3416 if selection.start == range.start && range.start >= region.pair.start.len() {
3417 range.start -= region.pair.start.len();
3418 if buffer.contains_str_at(range.start, ®ion.pair.start)
3419 && buffer.contains_str_at(range.end, ®ion.pair.end)
3420 {
3421 range.end += region.pair.end.len();
3422 selection.start = range.start;
3423 selection.end = range.end;
3424
3425 return selection;
3426 }
3427 }
3428 }
3429
3430 let always_treat_brackets_as_autoclosed = buffer
3431 .settings_at(selection.start, cx)
3432 .always_treat_brackets_as_autoclosed;
3433
3434 if !always_treat_brackets_as_autoclosed {
3435 return selection;
3436 }
3437
3438 if let Some(scope) = buffer.language_scope_at(selection.start) {
3439 for (pair, enabled) in scope.brackets() {
3440 if !enabled || !pair.close {
3441 continue;
3442 }
3443
3444 if buffer.contains_str_at(selection.start, &pair.end) {
3445 let pair_start_len = pair.start.len();
3446 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3447 {
3448 selection.start -= pair_start_len;
3449 selection.end += pair.end.len();
3450
3451 return selection;
3452 }
3453 }
3454 }
3455 }
3456
3457 selection
3458 })
3459 .collect();
3460
3461 drop(buffer);
3462 self.change_selections(None, cx, |selections| selections.select(new_selections));
3463 }
3464
3465 /// Iterate the given selections, and for each one, find the smallest surrounding
3466 /// autoclose region. This uses the ordering of the selections and the autoclose
3467 /// regions to avoid repeated comparisons.
3468 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3469 &'a self,
3470 selections: impl IntoIterator<Item = Selection<D>>,
3471 buffer: &'a MultiBufferSnapshot,
3472 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3473 let mut i = 0;
3474 let mut regions = self.autoclose_regions.as_slice();
3475 selections.into_iter().map(move |selection| {
3476 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3477
3478 let mut enclosing = None;
3479 while let Some(pair_state) = regions.get(i) {
3480 if pair_state.range.end.to_offset(buffer) < range.start {
3481 regions = ®ions[i + 1..];
3482 i = 0;
3483 } else if pair_state.range.start.to_offset(buffer) > range.end {
3484 break;
3485 } else {
3486 if pair_state.selection_id == selection.id {
3487 enclosing = Some(pair_state);
3488 }
3489 i += 1;
3490 }
3491 }
3492
3493 (selection.clone(), enclosing)
3494 })
3495 }
3496
3497 /// Remove any autoclose regions that no longer contain their selection.
3498 fn invalidate_autoclose_regions(
3499 &mut self,
3500 mut selections: &[Selection<Anchor>],
3501 buffer: &MultiBufferSnapshot,
3502 ) {
3503 self.autoclose_regions.retain(|state| {
3504 let mut i = 0;
3505 while let Some(selection) = selections.get(i) {
3506 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3507 selections = &selections[1..];
3508 continue;
3509 }
3510 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3511 break;
3512 }
3513 if selection.id == state.selection_id {
3514 return true;
3515 } else {
3516 i += 1;
3517 }
3518 }
3519 false
3520 });
3521 }
3522
3523 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3524 let offset = position.to_offset(buffer);
3525 let (word_range, kind) = buffer.surrounding_word(offset);
3526 if offset > word_range.start && kind == Some(CharKind::Word) {
3527 Some(
3528 buffer
3529 .text_for_range(word_range.start..offset)
3530 .collect::<String>(),
3531 )
3532 } else {
3533 None
3534 }
3535 }
3536
3537 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3538 self.refresh_inlay_hints(
3539 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3540 cx,
3541 );
3542 }
3543
3544 pub fn inlay_hints_enabled(&self) -> bool {
3545 self.inlay_hint_cache.enabled
3546 }
3547
3548 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3549 if self.project.is_none() || self.mode != EditorMode::Full {
3550 return;
3551 }
3552
3553 let reason_description = reason.description();
3554 let ignore_debounce = matches!(
3555 reason,
3556 InlayHintRefreshReason::SettingsChange(_)
3557 | InlayHintRefreshReason::Toggle(_)
3558 | InlayHintRefreshReason::ExcerptsRemoved(_)
3559 );
3560 let (invalidate_cache, required_languages) = match reason {
3561 InlayHintRefreshReason::Toggle(enabled) => {
3562 self.inlay_hint_cache.enabled = enabled;
3563 if enabled {
3564 (InvalidationStrategy::RefreshRequested, None)
3565 } else {
3566 self.inlay_hint_cache.clear();
3567 self.splice_inlays(
3568 self.visible_inlay_hints(cx)
3569 .iter()
3570 .map(|inlay| inlay.id)
3571 .collect(),
3572 Vec::new(),
3573 cx,
3574 );
3575 return;
3576 }
3577 }
3578 InlayHintRefreshReason::SettingsChange(new_settings) => {
3579 match self.inlay_hint_cache.update_settings(
3580 &self.buffer,
3581 new_settings,
3582 self.visible_inlay_hints(cx),
3583 cx,
3584 ) {
3585 ControlFlow::Break(Some(InlaySplice {
3586 to_remove,
3587 to_insert,
3588 })) => {
3589 self.splice_inlays(to_remove, to_insert, cx);
3590 return;
3591 }
3592 ControlFlow::Break(None) => return,
3593 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3594 }
3595 }
3596 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3597 if let Some(InlaySplice {
3598 to_remove,
3599 to_insert,
3600 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3601 {
3602 self.splice_inlays(to_remove, to_insert, cx);
3603 }
3604 return;
3605 }
3606 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3607 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3608 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3609 }
3610 InlayHintRefreshReason::RefreshRequested => {
3611 (InvalidationStrategy::RefreshRequested, None)
3612 }
3613 };
3614
3615 if let Some(InlaySplice {
3616 to_remove,
3617 to_insert,
3618 }) = self.inlay_hint_cache.spawn_hint_refresh(
3619 reason_description,
3620 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3621 invalidate_cache,
3622 ignore_debounce,
3623 cx,
3624 ) {
3625 self.splice_inlays(to_remove, to_insert, cx);
3626 }
3627 }
3628
3629 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3630 self.display_map
3631 .read(cx)
3632 .current_inlays()
3633 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3634 .cloned()
3635 .collect()
3636 }
3637
3638 pub fn excerpts_for_inlay_hints_query(
3639 &self,
3640 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3641 cx: &mut ViewContext<Editor>,
3642 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3643 let Some(project) = self.project.as_ref() else {
3644 return HashMap::default();
3645 };
3646 let project = project.read(cx);
3647 let multi_buffer = self.buffer().read(cx);
3648 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3649 let multi_buffer_visible_start = self
3650 .scroll_manager
3651 .anchor()
3652 .anchor
3653 .to_point(&multi_buffer_snapshot);
3654 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3655 multi_buffer_visible_start
3656 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3657 Bias::Left,
3658 );
3659 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3660 multi_buffer
3661 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3662 .into_iter()
3663 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3664 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3665 let buffer = buffer_handle.read(cx);
3666 let buffer_file = project::File::from_dyn(buffer.file())?;
3667 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3668 let worktree_entry = buffer_worktree
3669 .read(cx)
3670 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3671 if worktree_entry.is_ignored {
3672 return None;
3673 }
3674
3675 let language = buffer.language()?;
3676 if let Some(restrict_to_languages) = restrict_to_languages {
3677 if !restrict_to_languages.contains(language) {
3678 return None;
3679 }
3680 }
3681 Some((
3682 excerpt_id,
3683 (
3684 buffer_handle,
3685 buffer.version().clone(),
3686 excerpt_visible_range,
3687 ),
3688 ))
3689 })
3690 .collect()
3691 }
3692
3693 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3694 TextLayoutDetails {
3695 text_system: cx.text_system().clone(),
3696 editor_style: self.style.clone().unwrap(),
3697 rem_size: cx.rem_size(),
3698 scroll_anchor: self.scroll_manager.anchor(),
3699 visible_rows: self.visible_line_count(),
3700 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3701 }
3702 }
3703
3704 fn splice_inlays(
3705 &self,
3706 to_remove: Vec<InlayId>,
3707 to_insert: Vec<Inlay>,
3708 cx: &mut ViewContext<Self>,
3709 ) {
3710 self.display_map.update(cx, |display_map, cx| {
3711 display_map.splice_inlays(to_remove, to_insert, cx);
3712 });
3713 cx.notify();
3714 }
3715
3716 fn trigger_on_type_formatting(
3717 &self,
3718 input: String,
3719 cx: &mut ViewContext<Self>,
3720 ) -> Option<Task<Result<()>>> {
3721 if input.len() != 1 {
3722 return None;
3723 }
3724
3725 let project = self.project.as_ref()?;
3726 let position = self.selections.newest_anchor().head();
3727 let (buffer, buffer_position) = self
3728 .buffer
3729 .read(cx)
3730 .text_anchor_for_position(position, cx)?;
3731
3732 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3733 // hence we do LSP request & edit on host side only — add formats to host's history.
3734 let push_to_lsp_host_history = true;
3735 // If this is not the host, append its history with new edits.
3736 let push_to_client_history = project.read(cx).is_remote();
3737
3738 let on_type_formatting = project.update(cx, |project, cx| {
3739 project.on_type_format(
3740 buffer.clone(),
3741 buffer_position,
3742 input,
3743 push_to_lsp_host_history,
3744 cx,
3745 )
3746 });
3747 Some(cx.spawn(|editor, mut cx| async move {
3748 if let Some(transaction) = on_type_formatting.await? {
3749 if push_to_client_history {
3750 buffer
3751 .update(&mut cx, |buffer, _| {
3752 buffer.push_transaction(transaction, Instant::now());
3753 })
3754 .ok();
3755 }
3756 editor.update(&mut cx, |editor, cx| {
3757 editor.refresh_document_highlights(cx);
3758 })?;
3759 }
3760 Ok(())
3761 }))
3762 }
3763
3764 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3765 if self.pending_rename.is_some() {
3766 return;
3767 }
3768
3769 let Some(provider) = self.completion_provider.as_ref() else {
3770 return;
3771 };
3772
3773 let position = self.selections.newest_anchor().head();
3774 let (buffer, buffer_position) =
3775 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3776 output
3777 } else {
3778 return;
3779 };
3780
3781 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3782 let completions = provider.completions(&buffer, buffer_position, cx);
3783
3784 let id = post_inc(&mut self.next_completion_id);
3785 let task = cx.spawn(|this, mut cx| {
3786 async move {
3787 let completions = completions.await.log_err();
3788 let menu = if let Some(completions) = completions {
3789 let mut menu = CompletionsMenu {
3790 id,
3791 initial_position: position,
3792 match_candidates: completions
3793 .iter()
3794 .enumerate()
3795 .map(|(id, completion)| {
3796 StringMatchCandidate::new(
3797 id,
3798 completion.label.text[completion.label.filter_range.clone()]
3799 .into(),
3800 )
3801 })
3802 .collect(),
3803 buffer: buffer.clone(),
3804 completions: Arc::new(RwLock::new(completions.into())),
3805 matches: Vec::new().into(),
3806 selected_item: 0,
3807 scroll_handle: UniformListScrollHandle::new(),
3808 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3809 DebouncedDelay::new(),
3810 )),
3811 };
3812 menu.filter(query.as_deref(), cx.background_executor().clone())
3813 .await;
3814
3815 if menu.matches.is_empty() {
3816 None
3817 } else {
3818 this.update(&mut cx, |editor, cx| {
3819 let completions = menu.completions.clone();
3820 let matches = menu.matches.clone();
3821
3822 let delay_ms = EditorSettings::get_global(cx)
3823 .completion_documentation_secondary_query_debounce;
3824 let delay = Duration::from_millis(delay_ms);
3825
3826 editor
3827 .completion_documentation_pre_resolve_debounce
3828 .fire_new(delay, cx, |editor, cx| {
3829 CompletionsMenu::pre_resolve_completion_documentation(
3830 buffer,
3831 completions,
3832 matches,
3833 editor,
3834 cx,
3835 )
3836 });
3837 })
3838 .ok();
3839 Some(menu)
3840 }
3841 } else {
3842 None
3843 };
3844
3845 this.update(&mut cx, |this, cx| {
3846 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3847
3848 let mut context_menu = this.context_menu.write();
3849 match context_menu.as_ref() {
3850 None => {}
3851
3852 Some(ContextMenu::Completions(prev_menu)) => {
3853 if prev_menu.id > id {
3854 return;
3855 }
3856 }
3857
3858 _ => return,
3859 }
3860
3861 if this.focus_handle.is_focused(cx) && menu.is_some() {
3862 let menu = menu.unwrap();
3863 *context_menu = Some(ContextMenu::Completions(menu));
3864 drop(context_menu);
3865 this.discard_inline_completion(false, cx);
3866 cx.notify();
3867 } else if this.completion_tasks.len() <= 1 {
3868 // If there are no more completion tasks and the last menu was
3869 // empty, we should hide it. If it was already hidden, we should
3870 // also show the copilot completion when available.
3871 drop(context_menu);
3872 if this.hide_context_menu(cx).is_none() {
3873 this.update_visible_inline_completion(cx);
3874 }
3875 }
3876 })?;
3877
3878 Ok::<_, anyhow::Error>(())
3879 }
3880 .log_err()
3881 });
3882
3883 self.completion_tasks.push((id, task));
3884 }
3885
3886 pub fn confirm_completion(
3887 &mut self,
3888 action: &ConfirmCompletion,
3889 cx: &mut ViewContext<Self>,
3890 ) -> Option<Task<Result<()>>> {
3891 use language::ToOffset as _;
3892
3893 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3894 menu
3895 } else {
3896 return None;
3897 };
3898
3899 let mat = completions_menu
3900 .matches
3901 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3902 let buffer_handle = completions_menu.buffer;
3903 let completions = completions_menu.completions.read();
3904 let completion = completions.get(mat.candidate_id)?;
3905 cx.stop_propagation();
3906
3907 let snippet;
3908 let text;
3909
3910 if completion.is_snippet() {
3911 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3912 text = snippet.as_ref().unwrap().text.clone();
3913 } else {
3914 snippet = None;
3915 text = completion.new_text.clone();
3916 };
3917 let selections = self.selections.all::<usize>(cx);
3918 let buffer = buffer_handle.read(cx);
3919 let old_range = completion.old_range.to_offset(buffer);
3920 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3921
3922 let newest_selection = self.selections.newest_anchor();
3923 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3924 return None;
3925 }
3926
3927 let lookbehind = newest_selection
3928 .start
3929 .text_anchor
3930 .to_offset(buffer)
3931 .saturating_sub(old_range.start);
3932 let lookahead = old_range
3933 .end
3934 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3935 let mut common_prefix_len = old_text
3936 .bytes()
3937 .zip(text.bytes())
3938 .take_while(|(a, b)| a == b)
3939 .count();
3940
3941 let snapshot = self.buffer.read(cx).snapshot(cx);
3942 let mut range_to_replace: Option<Range<isize>> = None;
3943 let mut ranges = Vec::new();
3944 for selection in &selections {
3945 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3946 let start = selection.start.saturating_sub(lookbehind);
3947 let end = selection.end + lookahead;
3948 if selection.id == newest_selection.id {
3949 range_to_replace = Some(
3950 ((start + common_prefix_len) as isize - selection.start as isize)
3951 ..(end as isize - selection.start as isize),
3952 );
3953 }
3954 ranges.push(start + common_prefix_len..end);
3955 } else {
3956 common_prefix_len = 0;
3957 ranges.clear();
3958 ranges.extend(selections.iter().map(|s| {
3959 if s.id == newest_selection.id {
3960 range_to_replace = Some(
3961 old_range.start.to_offset_utf16(&snapshot).0 as isize
3962 - selection.start as isize
3963 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3964 - selection.start as isize,
3965 );
3966 old_range.clone()
3967 } else {
3968 s.start..s.end
3969 }
3970 }));
3971 break;
3972 }
3973 }
3974 let text = &text[common_prefix_len..];
3975
3976 cx.emit(EditorEvent::InputHandled {
3977 utf16_range_to_replace: range_to_replace,
3978 text: text.into(),
3979 });
3980
3981 self.transact(cx, |this, cx| {
3982 if let Some(mut snippet) = snippet {
3983 snippet.text = text.to_string();
3984 for tabstop in snippet.tabstops.iter_mut().flatten() {
3985 tabstop.start -= common_prefix_len as isize;
3986 tabstop.end -= common_prefix_len as isize;
3987 }
3988
3989 this.insert_snippet(&ranges, snippet, cx).log_err();
3990 } else {
3991 this.buffer.update(cx, |buffer, cx| {
3992 buffer.edit(
3993 ranges.iter().map(|range| (range.clone(), text)),
3994 this.autoindent_mode.clone(),
3995 cx,
3996 );
3997 });
3998 }
3999
4000 this.refresh_inline_completion(true, cx);
4001 });
4002
4003 if let Some(confirm) = completion.confirm.as_ref() {
4004 (confirm)(cx);
4005 }
4006
4007 if completion.show_new_completions_on_confirm {
4008 self.show_completions(&ShowCompletions, cx);
4009 }
4010
4011 let provider = self.completion_provider.as_ref()?;
4012 let apply_edits = provider.apply_additional_edits_for_completion(
4013 buffer_handle,
4014 completion.clone(),
4015 true,
4016 cx,
4017 );
4018 Some(cx.foreground_executor().spawn(async move {
4019 apply_edits.await?;
4020 Ok(())
4021 }))
4022 }
4023
4024 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4025 let mut context_menu = self.context_menu.write();
4026 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4027 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4028 // Toggle if we're selecting the same one
4029 *context_menu = None;
4030 cx.notify();
4031 return;
4032 } else {
4033 // Otherwise, clear it and start a new one
4034 *context_menu = None;
4035 cx.notify();
4036 }
4037 }
4038 drop(context_menu);
4039 let snapshot = self.snapshot(cx);
4040 let deployed_from_indicator = action.deployed_from_indicator;
4041 let mut task = self.code_actions_task.take();
4042 let action = action.clone();
4043 cx.spawn(|editor, mut cx| async move {
4044 while let Some(prev_task) = task {
4045 prev_task.await;
4046 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4047 }
4048
4049 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4050 if editor.focus_handle.is_focused(cx) {
4051 let multibuffer_point = action
4052 .deployed_from_indicator
4053 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4054 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4055 let (buffer, buffer_row) = snapshot
4056 .buffer_snapshot
4057 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4058 .and_then(|(buffer_snapshot, range)| {
4059 editor
4060 .buffer
4061 .read(cx)
4062 .buffer(buffer_snapshot.remote_id())
4063 .map(|buffer| (buffer, range.start.row))
4064 })?;
4065 let (_, code_actions) = editor
4066 .available_code_actions
4067 .clone()
4068 .and_then(|(location, code_actions)| {
4069 let snapshot = location.buffer.read(cx).snapshot();
4070 let point_range = location.range.to_point(&snapshot);
4071 let point_range = point_range.start.row..=point_range.end.row;
4072 if point_range.contains(&buffer_row) {
4073 Some((location, code_actions))
4074 } else {
4075 None
4076 }
4077 })
4078 .unzip();
4079 let buffer_id = buffer.read(cx).remote_id();
4080 let tasks = editor
4081 .tasks
4082 .get(&(buffer_id, buffer_row))
4083 .map(|t| Arc::new(t.to_owned()));
4084 if tasks.is_none() && code_actions.is_none() {
4085 return None;
4086 }
4087
4088 editor.completion_tasks.clear();
4089 editor.discard_inline_completion(false, cx);
4090 let task_context =
4091 tasks
4092 .as_ref()
4093 .zip(editor.project.clone())
4094 .map(|(tasks, project)| {
4095 let position = Point::new(buffer_row, tasks.column);
4096 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4097 let location = Location {
4098 buffer: buffer.clone(),
4099 range: range_start..range_start,
4100 };
4101 // Fill in the environmental variables from the tree-sitter captures
4102 let mut captured_task_variables = TaskVariables::default();
4103 for (capture_name, value) in tasks.extra_variables.clone() {
4104 captured_task_variables.insert(
4105 task::VariableName::Custom(capture_name.into()),
4106 value.clone(),
4107 );
4108 }
4109 project.update(cx, |project, cx| {
4110 project.task_context_for_location(
4111 captured_task_variables,
4112 location,
4113 cx,
4114 )
4115 })
4116 });
4117
4118 Some(cx.spawn(|editor, mut cx| async move {
4119 let task_context = match task_context {
4120 Some(task_context) => task_context.await,
4121 None => None,
4122 };
4123 let resolved_tasks =
4124 tasks.zip(task_context).map(|(tasks, task_context)| {
4125 Arc::new(ResolvedTasks {
4126 templates: tasks
4127 .templates
4128 .iter()
4129 .filter_map(|(kind, template)| {
4130 template
4131 .resolve_task(&kind.to_id_base(), &task_context)
4132 .map(|task| (kind.clone(), task))
4133 })
4134 .collect(),
4135 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4136 multibuffer_point.row,
4137 tasks.column,
4138 )),
4139 })
4140 });
4141 let spawn_straight_away = resolved_tasks
4142 .as_ref()
4143 .map_or(false, |tasks| tasks.templates.len() == 1)
4144 && code_actions
4145 .as_ref()
4146 .map_or(true, |actions| actions.is_empty());
4147 if let Some(task) = editor
4148 .update(&mut cx, |editor, cx| {
4149 *editor.context_menu.write() =
4150 Some(ContextMenu::CodeActions(CodeActionsMenu {
4151 buffer,
4152 actions: CodeActionContents {
4153 tasks: resolved_tasks,
4154 actions: code_actions,
4155 },
4156 selected_item: Default::default(),
4157 scroll_handle: UniformListScrollHandle::default(),
4158 deployed_from_indicator,
4159 }));
4160 if spawn_straight_away {
4161 if let Some(task) = editor.confirm_code_action(
4162 &ConfirmCodeAction { item_ix: Some(0) },
4163 cx,
4164 ) {
4165 cx.notify();
4166 return task;
4167 }
4168 }
4169 cx.notify();
4170 Task::ready(Ok(()))
4171 })
4172 .ok()
4173 {
4174 task.await
4175 } else {
4176 Ok(())
4177 }
4178 }))
4179 } else {
4180 Some(Task::ready(Ok(())))
4181 }
4182 })?;
4183 if let Some(task) = spawned_test_task {
4184 task.await?;
4185 }
4186
4187 Ok::<_, anyhow::Error>(())
4188 })
4189 .detach_and_log_err(cx);
4190 }
4191
4192 pub fn confirm_code_action(
4193 &mut self,
4194 action: &ConfirmCodeAction,
4195 cx: &mut ViewContext<Self>,
4196 ) -> Option<Task<Result<()>>> {
4197 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4198 menu
4199 } else {
4200 return None;
4201 };
4202 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4203 let action = actions_menu.actions.get(action_ix)?;
4204 let title = action.label();
4205 let buffer = actions_menu.buffer;
4206 let workspace = self.workspace()?;
4207
4208 match action {
4209 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4210 workspace.update(cx, |workspace, cx| {
4211 workspace::tasks::schedule_resolved_task(
4212 workspace,
4213 task_source_kind,
4214 resolved_task,
4215 false,
4216 cx,
4217 );
4218
4219 Some(Task::ready(Ok(())))
4220 })
4221 }
4222 CodeActionsItem::CodeAction(action) => {
4223 let apply_code_actions = workspace
4224 .read(cx)
4225 .project()
4226 .clone()
4227 .update(cx, |project, cx| {
4228 project.apply_code_action(buffer, action, true, cx)
4229 });
4230 let workspace = workspace.downgrade();
4231 Some(cx.spawn(|editor, cx| async move {
4232 let project_transaction = apply_code_actions.await?;
4233 Self::open_project_transaction(
4234 &editor,
4235 workspace,
4236 project_transaction,
4237 title,
4238 cx,
4239 )
4240 .await
4241 }))
4242 }
4243 }
4244 }
4245
4246 pub async fn open_project_transaction(
4247 this: &WeakView<Editor>,
4248 workspace: WeakView<Workspace>,
4249 transaction: ProjectTransaction,
4250 title: String,
4251 mut cx: AsyncWindowContext,
4252 ) -> Result<()> {
4253 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4254
4255 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4256 cx.update(|cx| {
4257 entries.sort_unstable_by_key(|(buffer, _)| {
4258 buffer.read(cx).file().map(|f| f.path().clone())
4259 });
4260 })?;
4261
4262 // If the project transaction's edits are all contained within this editor, then
4263 // avoid opening a new editor to display them.
4264
4265 if let Some((buffer, transaction)) = entries.first() {
4266 if entries.len() == 1 {
4267 let excerpt = this.update(&mut cx, |editor, cx| {
4268 editor
4269 .buffer()
4270 .read(cx)
4271 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4272 })?;
4273 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4274 if excerpted_buffer == *buffer {
4275 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4276 let excerpt_range = excerpt_range.to_offset(buffer);
4277 buffer
4278 .edited_ranges_for_transaction::<usize>(transaction)
4279 .all(|range| {
4280 excerpt_range.start <= range.start
4281 && excerpt_range.end >= range.end
4282 })
4283 })?;
4284
4285 if all_edits_within_excerpt {
4286 return Ok(());
4287 }
4288 }
4289 }
4290 }
4291 } else {
4292 return Ok(());
4293 }
4294
4295 let mut ranges_to_highlight = Vec::new();
4296 let excerpt_buffer = cx.new_model(|cx| {
4297 let mut multibuffer =
4298 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4299 for (buffer_handle, transaction) in &entries {
4300 let buffer = buffer_handle.read(cx);
4301 ranges_to_highlight.extend(
4302 multibuffer.push_excerpts_with_context_lines(
4303 buffer_handle.clone(),
4304 buffer
4305 .edited_ranges_for_transaction::<usize>(transaction)
4306 .collect(),
4307 DEFAULT_MULTIBUFFER_CONTEXT,
4308 cx,
4309 ),
4310 );
4311 }
4312 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4313 multibuffer
4314 })?;
4315
4316 workspace.update(&mut cx, |workspace, cx| {
4317 let project = workspace.project().clone();
4318 let editor =
4319 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4320 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4321 editor.update(cx, |editor, cx| {
4322 editor.highlight_background::<Self>(
4323 &ranges_to_highlight,
4324 |theme| theme.editor_highlighted_line_background,
4325 cx,
4326 );
4327 });
4328 })?;
4329
4330 Ok(())
4331 }
4332
4333 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4334 let project = self.project.clone()?;
4335 let buffer = self.buffer.read(cx);
4336 let newest_selection = self.selections.newest_anchor().clone();
4337 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4338 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4339 if start_buffer != end_buffer {
4340 return None;
4341 }
4342
4343 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4344 cx.background_executor()
4345 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4346 .await;
4347
4348 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4349 project.code_actions(&start_buffer, start..end, cx)
4350 }) {
4351 code_actions.await
4352 } else {
4353 Vec::new()
4354 };
4355
4356 this.update(&mut cx, |this, cx| {
4357 this.available_code_actions = if actions.is_empty() {
4358 None
4359 } else {
4360 Some((
4361 Location {
4362 buffer: start_buffer,
4363 range: start..end,
4364 },
4365 actions.into(),
4366 ))
4367 };
4368 cx.notify();
4369 })
4370 .log_err();
4371 }));
4372 None
4373 }
4374
4375 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4376 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4377 self.show_git_blame_inline = false;
4378
4379 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4380 cx.background_executor().timer(delay).await;
4381
4382 this.update(&mut cx, |this, cx| {
4383 this.show_git_blame_inline = true;
4384 cx.notify();
4385 })
4386 .log_err();
4387 }));
4388 }
4389 }
4390
4391 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4392 if self.pending_rename.is_some() {
4393 return None;
4394 }
4395
4396 let project = self.project.clone()?;
4397 let buffer = self.buffer.read(cx);
4398 let newest_selection = self.selections.newest_anchor().clone();
4399 let cursor_position = newest_selection.head();
4400 let (cursor_buffer, cursor_buffer_position) =
4401 buffer.text_anchor_for_position(cursor_position, cx)?;
4402 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4403 if cursor_buffer != tail_buffer {
4404 return None;
4405 }
4406
4407 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4408 cx.background_executor()
4409 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4410 .await;
4411
4412 let highlights = if let Some(highlights) = project
4413 .update(&mut cx, |project, cx| {
4414 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4415 })
4416 .log_err()
4417 {
4418 highlights.await.log_err()
4419 } else {
4420 None
4421 };
4422
4423 if let Some(highlights) = highlights {
4424 this.update(&mut cx, |this, cx| {
4425 if this.pending_rename.is_some() {
4426 return;
4427 }
4428
4429 let buffer_id = cursor_position.buffer_id;
4430 let buffer = this.buffer.read(cx);
4431 if !buffer
4432 .text_anchor_for_position(cursor_position, cx)
4433 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4434 {
4435 return;
4436 }
4437
4438 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4439 let mut write_ranges = Vec::new();
4440 let mut read_ranges = Vec::new();
4441 for highlight in highlights {
4442 for (excerpt_id, excerpt_range) in
4443 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4444 {
4445 let start = highlight
4446 .range
4447 .start
4448 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4449 let end = highlight
4450 .range
4451 .end
4452 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4453 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4454 continue;
4455 }
4456
4457 let range = Anchor {
4458 buffer_id,
4459 excerpt_id: excerpt_id,
4460 text_anchor: start,
4461 }..Anchor {
4462 buffer_id,
4463 excerpt_id,
4464 text_anchor: end,
4465 };
4466 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4467 write_ranges.push(range);
4468 } else {
4469 read_ranges.push(range);
4470 }
4471 }
4472 }
4473
4474 this.highlight_background::<DocumentHighlightRead>(
4475 &read_ranges,
4476 |theme| theme.editor_document_highlight_read_background,
4477 cx,
4478 );
4479 this.highlight_background::<DocumentHighlightWrite>(
4480 &write_ranges,
4481 |theme| theme.editor_document_highlight_write_background,
4482 cx,
4483 );
4484 cx.notify();
4485 })
4486 .log_err();
4487 }
4488 }));
4489 None
4490 }
4491
4492 fn refresh_inline_completion(
4493 &mut self,
4494 debounce: bool,
4495 cx: &mut ViewContext<Self>,
4496 ) -> Option<()> {
4497 let provider = self.inline_completion_provider()?;
4498 let cursor = self.selections.newest_anchor().head();
4499 let (buffer, cursor_buffer_position) =
4500 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4501 if !self.show_inline_completions
4502 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4503 {
4504 self.discard_inline_completion(false, cx);
4505 return None;
4506 }
4507
4508 self.update_visible_inline_completion(cx);
4509 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4510 Some(())
4511 }
4512
4513 fn cycle_inline_completion(
4514 &mut self,
4515 direction: Direction,
4516 cx: &mut ViewContext<Self>,
4517 ) -> Option<()> {
4518 let provider = self.inline_completion_provider()?;
4519 let cursor = self.selections.newest_anchor().head();
4520 let (buffer, cursor_buffer_position) =
4521 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4522 if !self.show_inline_completions
4523 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4524 {
4525 return None;
4526 }
4527
4528 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4529 self.update_visible_inline_completion(cx);
4530
4531 Some(())
4532 }
4533
4534 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4535 if !self.has_active_inline_completion(cx) {
4536 self.refresh_inline_completion(false, cx);
4537 return;
4538 }
4539
4540 self.update_visible_inline_completion(cx);
4541 }
4542
4543 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4544 self.show_cursor_names(cx);
4545 }
4546
4547 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4548 self.show_cursor_names = true;
4549 cx.notify();
4550 cx.spawn(|this, mut cx| async move {
4551 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4552 this.update(&mut cx, |this, cx| {
4553 this.show_cursor_names = false;
4554 cx.notify()
4555 })
4556 .ok()
4557 })
4558 .detach();
4559 }
4560
4561 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4562 if self.has_active_inline_completion(cx) {
4563 self.cycle_inline_completion(Direction::Next, cx);
4564 } else {
4565 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4566 if is_copilot_disabled {
4567 cx.propagate();
4568 }
4569 }
4570 }
4571
4572 pub fn previous_inline_completion(
4573 &mut self,
4574 _: &PreviousInlineCompletion,
4575 cx: &mut ViewContext<Self>,
4576 ) {
4577 if self.has_active_inline_completion(cx) {
4578 self.cycle_inline_completion(Direction::Prev, cx);
4579 } else {
4580 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4581 if is_copilot_disabled {
4582 cx.propagate();
4583 }
4584 }
4585 }
4586
4587 pub fn accept_inline_completion(
4588 &mut self,
4589 _: &AcceptInlineCompletion,
4590 cx: &mut ViewContext<Self>,
4591 ) {
4592 let Some(completion) = self.take_active_inline_completion(cx) else {
4593 return;
4594 };
4595 if let Some(provider) = self.inline_completion_provider() {
4596 provider.accept(cx);
4597 }
4598
4599 cx.emit(EditorEvent::InputHandled {
4600 utf16_range_to_replace: None,
4601 text: completion.text.to_string().into(),
4602 });
4603 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4604 self.refresh_inline_completion(true, cx);
4605 cx.notify();
4606 }
4607
4608 pub fn accept_partial_inline_completion(
4609 &mut self,
4610 _: &AcceptPartialInlineCompletion,
4611 cx: &mut ViewContext<Self>,
4612 ) {
4613 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4614 if let Some(completion) = self.take_active_inline_completion(cx) {
4615 let mut partial_completion = completion
4616 .text
4617 .chars()
4618 .by_ref()
4619 .take_while(|c| c.is_alphabetic())
4620 .collect::<String>();
4621 if partial_completion.is_empty() {
4622 partial_completion = completion
4623 .text
4624 .chars()
4625 .by_ref()
4626 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4627 .collect::<String>();
4628 }
4629
4630 cx.emit(EditorEvent::InputHandled {
4631 utf16_range_to_replace: None,
4632 text: partial_completion.clone().into(),
4633 });
4634 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4635 self.refresh_inline_completion(true, cx);
4636 cx.notify();
4637 }
4638 }
4639 }
4640
4641 fn discard_inline_completion(
4642 &mut self,
4643 should_report_inline_completion_event: bool,
4644 cx: &mut ViewContext<Self>,
4645 ) -> bool {
4646 if let Some(provider) = self.inline_completion_provider() {
4647 provider.discard(should_report_inline_completion_event, cx);
4648 }
4649
4650 self.take_active_inline_completion(cx).is_some()
4651 }
4652
4653 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4654 if let Some(completion) = self.active_inline_completion.as_ref() {
4655 let buffer = self.buffer.read(cx).read(cx);
4656 completion.position.is_valid(&buffer)
4657 } else {
4658 false
4659 }
4660 }
4661
4662 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4663 let completion = self.active_inline_completion.take()?;
4664 self.display_map.update(cx, |map, cx| {
4665 map.splice_inlays(vec![completion.id], Default::default(), cx);
4666 });
4667 let buffer = self.buffer.read(cx).read(cx);
4668
4669 if completion.position.is_valid(&buffer) {
4670 Some(completion)
4671 } else {
4672 None
4673 }
4674 }
4675
4676 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4677 let selection = self.selections.newest_anchor();
4678 let cursor = selection.head();
4679
4680 if self.context_menu.read().is_none()
4681 && self.completion_tasks.is_empty()
4682 && selection.start == selection.end
4683 {
4684 if let Some(provider) = self.inline_completion_provider() {
4685 if let Some((buffer, cursor_buffer_position)) =
4686 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4687 {
4688 if let Some(text) =
4689 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4690 {
4691 let text = Rope::from(text);
4692 let mut to_remove = Vec::new();
4693 if let Some(completion) = self.active_inline_completion.take() {
4694 to_remove.push(completion.id);
4695 }
4696
4697 let completion_inlay =
4698 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4699 self.active_inline_completion = Some(completion_inlay.clone());
4700 self.display_map.update(cx, move |map, cx| {
4701 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4702 });
4703 cx.notify();
4704 return;
4705 }
4706 }
4707 }
4708 }
4709
4710 self.discard_inline_completion(false, cx);
4711 }
4712
4713 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4714 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4715 }
4716
4717 fn render_code_actions_indicator(
4718 &self,
4719 _style: &EditorStyle,
4720 row: DisplayRow,
4721 is_active: bool,
4722 cx: &mut ViewContext<Self>,
4723 ) -> Option<IconButton> {
4724 if self.available_code_actions.is_some() {
4725 Some(
4726 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4727 .icon_size(IconSize::XSmall)
4728 .size(ui::ButtonSize::None)
4729 .icon_color(Color::Muted)
4730 .selected(is_active)
4731 .on_click(cx.listener(move |editor, _e, cx| {
4732 editor.focus(cx);
4733 editor.toggle_code_actions(
4734 &ToggleCodeActions {
4735 deployed_from_indicator: Some(row),
4736 },
4737 cx,
4738 );
4739 })),
4740 )
4741 } else {
4742 None
4743 }
4744 }
4745
4746 fn clear_tasks(&mut self) {
4747 self.tasks.clear()
4748 }
4749
4750 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4751 if let Some(_) = self.tasks.insert(key, value) {
4752 // This case should hopefully be rare, but just in case...
4753 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4754 }
4755 }
4756
4757 fn render_run_indicator(
4758 &self,
4759 _style: &EditorStyle,
4760 is_active: bool,
4761 row: DisplayRow,
4762 cx: &mut ViewContext<Self>,
4763 ) -> IconButton {
4764 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4765 .icon_size(IconSize::XSmall)
4766 .size(ui::ButtonSize::None)
4767 .icon_color(Color::Muted)
4768 .selected(is_active)
4769 .on_click(cx.listener(move |editor, _e, cx| {
4770 editor.focus(cx);
4771 editor.toggle_code_actions(
4772 &ToggleCodeActions {
4773 deployed_from_indicator: Some(row),
4774 },
4775 cx,
4776 );
4777 }))
4778 }
4779
4780 pub fn context_menu_visible(&self) -> bool {
4781 self.context_menu
4782 .read()
4783 .as_ref()
4784 .map_or(false, |menu| menu.visible())
4785 }
4786
4787 fn render_context_menu(
4788 &self,
4789 cursor_position: DisplayPoint,
4790 style: &EditorStyle,
4791 max_height: Pixels,
4792 cx: &mut ViewContext<Editor>,
4793 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4794 self.context_menu.read().as_ref().map(|menu| {
4795 menu.render(
4796 cursor_position,
4797 style,
4798 max_height,
4799 self.workspace.as_ref().map(|(w, _)| w.clone()),
4800 cx,
4801 )
4802 })
4803 }
4804
4805 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4806 cx.notify();
4807 self.completion_tasks.clear();
4808 let context_menu = self.context_menu.write().take();
4809 if context_menu.is_some() {
4810 self.update_visible_inline_completion(cx);
4811 }
4812 context_menu
4813 }
4814
4815 pub fn insert_snippet(
4816 &mut self,
4817 insertion_ranges: &[Range<usize>],
4818 snippet: Snippet,
4819 cx: &mut ViewContext<Self>,
4820 ) -> Result<()> {
4821 struct Tabstop<T> {
4822 is_end_tabstop: bool,
4823 ranges: Vec<Range<T>>,
4824 }
4825
4826 let tabstops = self.buffer.update(cx, |buffer, cx| {
4827 let snippet_text: Arc<str> = snippet.text.clone().into();
4828 buffer.edit(
4829 insertion_ranges
4830 .iter()
4831 .cloned()
4832 .map(|range| (range, snippet_text.clone())),
4833 Some(AutoindentMode::EachLine),
4834 cx,
4835 );
4836
4837 let snapshot = &*buffer.read(cx);
4838 let snippet = &snippet;
4839 snippet
4840 .tabstops
4841 .iter()
4842 .map(|tabstop| {
4843 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4844 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4845 });
4846 let mut tabstop_ranges = tabstop
4847 .iter()
4848 .flat_map(|tabstop_range| {
4849 let mut delta = 0_isize;
4850 insertion_ranges.iter().map(move |insertion_range| {
4851 let insertion_start = insertion_range.start as isize + delta;
4852 delta +=
4853 snippet.text.len() as isize - insertion_range.len() as isize;
4854
4855 let start = ((insertion_start + tabstop_range.start) as usize)
4856 .min(snapshot.len());
4857 let end = ((insertion_start + tabstop_range.end) as usize)
4858 .min(snapshot.len());
4859 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4860 })
4861 })
4862 .collect::<Vec<_>>();
4863 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4864
4865 Tabstop {
4866 is_end_tabstop,
4867 ranges: tabstop_ranges,
4868 }
4869 })
4870 .collect::<Vec<_>>()
4871 });
4872
4873 if let Some(tabstop) = tabstops.first() {
4874 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4875 s.select_ranges(tabstop.ranges.iter().cloned());
4876 });
4877
4878 // If we're already at the last tabstop and it's at the end of the snippet,
4879 // we're done, we don't need to keep the state around.
4880 if !tabstop.is_end_tabstop {
4881 let ranges = tabstops
4882 .into_iter()
4883 .map(|tabstop| tabstop.ranges)
4884 .collect::<Vec<_>>();
4885 self.snippet_stack.push(SnippetState {
4886 active_index: 0,
4887 ranges,
4888 });
4889 }
4890
4891 // Check whether the just-entered snippet ends with an auto-closable bracket.
4892 if self.autoclose_regions.is_empty() {
4893 let snapshot = self.buffer.read(cx).snapshot(cx);
4894 for selection in &mut self.selections.all::<Point>(cx) {
4895 let selection_head = selection.head();
4896 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4897 continue;
4898 };
4899
4900 let mut bracket_pair = None;
4901 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4902 let prev_chars = snapshot
4903 .reversed_chars_at(selection_head)
4904 .collect::<String>();
4905 for (pair, enabled) in scope.brackets() {
4906 if enabled
4907 && pair.close
4908 && prev_chars.starts_with(pair.start.as_str())
4909 && next_chars.starts_with(pair.end.as_str())
4910 {
4911 bracket_pair = Some(pair.clone());
4912 break;
4913 }
4914 }
4915 if let Some(pair) = bracket_pair {
4916 let start = snapshot.anchor_after(selection_head);
4917 let end = snapshot.anchor_after(selection_head);
4918 self.autoclose_regions.push(AutocloseRegion {
4919 selection_id: selection.id,
4920 range: start..end,
4921 pair,
4922 });
4923 }
4924 }
4925 }
4926 }
4927 Ok(())
4928 }
4929
4930 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4931 self.move_to_snippet_tabstop(Bias::Right, cx)
4932 }
4933
4934 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4935 self.move_to_snippet_tabstop(Bias::Left, cx)
4936 }
4937
4938 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4939 if let Some(mut snippet) = self.snippet_stack.pop() {
4940 match bias {
4941 Bias::Left => {
4942 if snippet.active_index > 0 {
4943 snippet.active_index -= 1;
4944 } else {
4945 self.snippet_stack.push(snippet);
4946 return false;
4947 }
4948 }
4949 Bias::Right => {
4950 if snippet.active_index + 1 < snippet.ranges.len() {
4951 snippet.active_index += 1;
4952 } else {
4953 self.snippet_stack.push(snippet);
4954 return false;
4955 }
4956 }
4957 }
4958 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4959 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4960 s.select_anchor_ranges(current_ranges.iter().cloned())
4961 });
4962 // If snippet state is not at the last tabstop, push it back on the stack
4963 if snippet.active_index + 1 < snippet.ranges.len() {
4964 self.snippet_stack.push(snippet);
4965 }
4966 return true;
4967 }
4968 }
4969
4970 false
4971 }
4972
4973 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4974 self.transact(cx, |this, cx| {
4975 this.select_all(&SelectAll, cx);
4976 this.insert("", cx);
4977 });
4978 }
4979
4980 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4981 self.transact(cx, |this, cx| {
4982 this.select_autoclose_pair(cx);
4983 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4984 if !this.selections.line_mode {
4985 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4986 for selection in &mut selections {
4987 if selection.is_empty() {
4988 let old_head = selection.head();
4989 let mut new_head =
4990 movement::left(&display_map, old_head.to_display_point(&display_map))
4991 .to_point(&display_map);
4992 if let Some((buffer, line_buffer_range)) = display_map
4993 .buffer_snapshot
4994 .buffer_line_for_row(MultiBufferRow(old_head.row))
4995 {
4996 let indent_size =
4997 buffer.indent_size_for_line(line_buffer_range.start.row);
4998 let indent_len = match indent_size.kind {
4999 IndentKind::Space => {
5000 buffer.settings_at(line_buffer_range.start, cx).tab_size
5001 }
5002 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5003 };
5004 if old_head.column <= indent_size.len && old_head.column > 0 {
5005 let indent_len = indent_len.get();
5006 new_head = cmp::min(
5007 new_head,
5008 MultiBufferPoint::new(
5009 old_head.row,
5010 ((old_head.column - 1) / indent_len) * indent_len,
5011 ),
5012 );
5013 }
5014 }
5015
5016 selection.set_head(new_head, SelectionGoal::None);
5017 }
5018 }
5019 }
5020
5021 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5022 this.insert("", cx);
5023 this.refresh_inline_completion(true, cx);
5024 });
5025 }
5026
5027 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5028 self.transact(cx, |this, cx| {
5029 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5030 let line_mode = s.line_mode;
5031 s.move_with(|map, selection| {
5032 if selection.is_empty() && !line_mode {
5033 let cursor = movement::right(map, selection.head());
5034 selection.end = cursor;
5035 selection.reversed = true;
5036 selection.goal = SelectionGoal::None;
5037 }
5038 })
5039 });
5040 this.insert("", cx);
5041 this.refresh_inline_completion(true, cx);
5042 });
5043 }
5044
5045 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5046 if self.move_to_prev_snippet_tabstop(cx) {
5047 return;
5048 }
5049
5050 self.outdent(&Outdent, cx);
5051 }
5052
5053 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5054 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5055 return;
5056 }
5057
5058 let mut selections = self.selections.all_adjusted(cx);
5059 let buffer = self.buffer.read(cx);
5060 let snapshot = buffer.snapshot(cx);
5061 let rows_iter = selections.iter().map(|s| s.head().row);
5062 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5063
5064 let mut edits = Vec::new();
5065 let mut prev_edited_row = 0;
5066 let mut row_delta = 0;
5067 for selection in &mut selections {
5068 if selection.start.row != prev_edited_row {
5069 row_delta = 0;
5070 }
5071 prev_edited_row = selection.end.row;
5072
5073 // If the selection is non-empty, then increase the indentation of the selected lines.
5074 if !selection.is_empty() {
5075 row_delta =
5076 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5077 continue;
5078 }
5079
5080 // If the selection is empty and the cursor is in the leading whitespace before the
5081 // suggested indentation, then auto-indent the line.
5082 let cursor = selection.head();
5083 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5084 if let Some(suggested_indent) =
5085 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5086 {
5087 if cursor.column < suggested_indent.len
5088 && cursor.column <= current_indent.len
5089 && current_indent.len <= suggested_indent.len
5090 {
5091 selection.start = Point::new(cursor.row, suggested_indent.len);
5092 selection.end = selection.start;
5093 if row_delta == 0 {
5094 edits.extend(Buffer::edit_for_indent_size_adjustment(
5095 cursor.row,
5096 current_indent,
5097 suggested_indent,
5098 ));
5099 row_delta = suggested_indent.len - current_indent.len;
5100 }
5101 continue;
5102 }
5103 }
5104
5105 // Otherwise, insert a hard or soft tab.
5106 let settings = buffer.settings_at(cursor, cx);
5107 let tab_size = if settings.hard_tabs {
5108 IndentSize::tab()
5109 } else {
5110 let tab_size = settings.tab_size.get();
5111 let char_column = snapshot
5112 .text_for_range(Point::new(cursor.row, 0)..cursor)
5113 .flat_map(str::chars)
5114 .count()
5115 + row_delta as usize;
5116 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5117 IndentSize::spaces(chars_to_next_tab_stop)
5118 };
5119 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5120 selection.end = selection.start;
5121 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5122 row_delta += tab_size.len;
5123 }
5124
5125 self.transact(cx, |this, cx| {
5126 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5127 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5128 this.refresh_inline_completion(true, cx);
5129 });
5130 }
5131
5132 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5133 if self.read_only(cx) {
5134 return;
5135 }
5136 let mut selections = self.selections.all::<Point>(cx);
5137 let mut prev_edited_row = 0;
5138 let mut row_delta = 0;
5139 let mut edits = Vec::new();
5140 let buffer = self.buffer.read(cx);
5141 let snapshot = buffer.snapshot(cx);
5142 for selection in &mut selections {
5143 if selection.start.row != prev_edited_row {
5144 row_delta = 0;
5145 }
5146 prev_edited_row = selection.end.row;
5147
5148 row_delta =
5149 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5150 }
5151
5152 self.transact(cx, |this, cx| {
5153 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5154 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5155 });
5156 }
5157
5158 fn indent_selection(
5159 buffer: &MultiBuffer,
5160 snapshot: &MultiBufferSnapshot,
5161 selection: &mut Selection<Point>,
5162 edits: &mut Vec<(Range<Point>, String)>,
5163 delta_for_start_row: u32,
5164 cx: &AppContext,
5165 ) -> u32 {
5166 let settings = buffer.settings_at(selection.start, cx);
5167 let tab_size = settings.tab_size.get();
5168 let indent_kind = if settings.hard_tabs {
5169 IndentKind::Tab
5170 } else {
5171 IndentKind::Space
5172 };
5173 let mut start_row = selection.start.row;
5174 let mut end_row = selection.end.row + 1;
5175
5176 // If a selection ends at the beginning of a line, don't indent
5177 // that last line.
5178 if selection.end.column == 0 && selection.end.row > selection.start.row {
5179 end_row -= 1;
5180 }
5181
5182 // Avoid re-indenting a row that has already been indented by a
5183 // previous selection, but still update this selection's column
5184 // to reflect that indentation.
5185 if delta_for_start_row > 0 {
5186 start_row += 1;
5187 selection.start.column += delta_for_start_row;
5188 if selection.end.row == selection.start.row {
5189 selection.end.column += delta_for_start_row;
5190 }
5191 }
5192
5193 let mut delta_for_end_row = 0;
5194 let has_multiple_rows = start_row + 1 != end_row;
5195 for row in start_row..end_row {
5196 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5197 let indent_delta = match (current_indent.kind, indent_kind) {
5198 (IndentKind::Space, IndentKind::Space) => {
5199 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5200 IndentSize::spaces(columns_to_next_tab_stop)
5201 }
5202 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5203 (_, IndentKind::Tab) => IndentSize::tab(),
5204 };
5205
5206 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5207 0
5208 } else {
5209 selection.start.column
5210 };
5211 let row_start = Point::new(row, start);
5212 edits.push((
5213 row_start..row_start,
5214 indent_delta.chars().collect::<String>(),
5215 ));
5216
5217 // Update this selection's endpoints to reflect the indentation.
5218 if row == selection.start.row {
5219 selection.start.column += indent_delta.len;
5220 }
5221 if row == selection.end.row {
5222 selection.end.column += indent_delta.len;
5223 delta_for_end_row = indent_delta.len;
5224 }
5225 }
5226
5227 if selection.start.row == selection.end.row {
5228 delta_for_start_row + delta_for_end_row
5229 } else {
5230 delta_for_end_row
5231 }
5232 }
5233
5234 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5235 if self.read_only(cx) {
5236 return;
5237 }
5238 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5239 let selections = self.selections.all::<Point>(cx);
5240 let mut deletion_ranges = Vec::new();
5241 let mut last_outdent = None;
5242 {
5243 let buffer = self.buffer.read(cx);
5244 let snapshot = buffer.snapshot(cx);
5245 for selection in &selections {
5246 let settings = buffer.settings_at(selection.start, cx);
5247 let tab_size = settings.tab_size.get();
5248 let mut rows = selection.spanned_rows(false, &display_map);
5249
5250 // Avoid re-outdenting a row that has already been outdented by a
5251 // previous selection.
5252 if let Some(last_row) = last_outdent {
5253 if last_row == rows.start {
5254 rows.start = rows.start.next_row();
5255 }
5256 }
5257 let has_multiple_rows = rows.len() > 1;
5258 for row in rows.iter_rows() {
5259 let indent_size = snapshot.indent_size_for_line(row);
5260 if indent_size.len > 0 {
5261 let deletion_len = match indent_size.kind {
5262 IndentKind::Space => {
5263 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5264 if columns_to_prev_tab_stop == 0 {
5265 tab_size
5266 } else {
5267 columns_to_prev_tab_stop
5268 }
5269 }
5270 IndentKind::Tab => 1,
5271 };
5272 let start = if has_multiple_rows
5273 || deletion_len > selection.start.column
5274 || indent_size.len < selection.start.column
5275 {
5276 0
5277 } else {
5278 selection.start.column - deletion_len
5279 };
5280 deletion_ranges.push(
5281 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5282 );
5283 last_outdent = Some(row);
5284 }
5285 }
5286 }
5287 }
5288
5289 self.transact(cx, |this, cx| {
5290 this.buffer.update(cx, |buffer, cx| {
5291 let empty_str: Arc<str> = "".into();
5292 buffer.edit(
5293 deletion_ranges
5294 .into_iter()
5295 .map(|range| (range, empty_str.clone())),
5296 None,
5297 cx,
5298 );
5299 });
5300 let selections = this.selections.all::<usize>(cx);
5301 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5302 });
5303 }
5304
5305 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5306 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5307 let selections = self.selections.all::<Point>(cx);
5308
5309 let mut new_cursors = Vec::new();
5310 let mut edit_ranges = Vec::new();
5311 let mut selections = selections.iter().peekable();
5312 while let Some(selection) = selections.next() {
5313 let mut rows = selection.spanned_rows(false, &display_map);
5314 let goal_display_column = selection.head().to_display_point(&display_map).column();
5315
5316 // Accumulate contiguous regions of rows that we want to delete.
5317 while let Some(next_selection) = selections.peek() {
5318 let next_rows = next_selection.spanned_rows(false, &display_map);
5319 if next_rows.start <= rows.end {
5320 rows.end = next_rows.end;
5321 selections.next().unwrap();
5322 } else {
5323 break;
5324 }
5325 }
5326
5327 let buffer = &display_map.buffer_snapshot;
5328 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5329 let edit_end;
5330 let cursor_buffer_row;
5331 if buffer.max_point().row >= rows.end.0 {
5332 // If there's a line after the range, delete the \n from the end of the row range
5333 // and position the cursor on the next line.
5334 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5335 cursor_buffer_row = rows.end;
5336 } else {
5337 // If there isn't a line after the range, delete the \n from the line before the
5338 // start of the row range and position the cursor there.
5339 edit_start = edit_start.saturating_sub(1);
5340 edit_end = buffer.len();
5341 cursor_buffer_row = rows.start.previous_row();
5342 }
5343
5344 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5345 *cursor.column_mut() =
5346 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5347
5348 new_cursors.push((
5349 selection.id,
5350 buffer.anchor_after(cursor.to_point(&display_map)),
5351 ));
5352 edit_ranges.push(edit_start..edit_end);
5353 }
5354
5355 self.transact(cx, |this, cx| {
5356 let buffer = this.buffer.update(cx, |buffer, cx| {
5357 let empty_str: Arc<str> = "".into();
5358 buffer.edit(
5359 edit_ranges
5360 .into_iter()
5361 .map(|range| (range, empty_str.clone())),
5362 None,
5363 cx,
5364 );
5365 buffer.snapshot(cx)
5366 });
5367 let new_selections = new_cursors
5368 .into_iter()
5369 .map(|(id, cursor)| {
5370 let cursor = cursor.to_point(&buffer);
5371 Selection {
5372 id,
5373 start: cursor,
5374 end: cursor,
5375 reversed: false,
5376 goal: SelectionGoal::None,
5377 }
5378 })
5379 .collect();
5380
5381 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5382 s.select(new_selections);
5383 });
5384 });
5385 }
5386
5387 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5388 if self.read_only(cx) {
5389 return;
5390 }
5391 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5392 for selection in self.selections.all::<Point>(cx) {
5393 let start = MultiBufferRow(selection.start.row);
5394 let end = if selection.start.row == selection.end.row {
5395 MultiBufferRow(selection.start.row + 1)
5396 } else {
5397 MultiBufferRow(selection.end.row)
5398 };
5399
5400 if let Some(last_row_range) = row_ranges.last_mut() {
5401 if start <= last_row_range.end {
5402 last_row_range.end = end;
5403 continue;
5404 }
5405 }
5406 row_ranges.push(start..end);
5407 }
5408
5409 let snapshot = self.buffer.read(cx).snapshot(cx);
5410 let mut cursor_positions = Vec::new();
5411 for row_range in &row_ranges {
5412 let anchor = snapshot.anchor_before(Point::new(
5413 row_range.end.previous_row().0,
5414 snapshot.line_len(row_range.end.previous_row()),
5415 ));
5416 cursor_positions.push(anchor..anchor);
5417 }
5418
5419 self.transact(cx, |this, cx| {
5420 for row_range in row_ranges.into_iter().rev() {
5421 for row in row_range.iter_rows().rev() {
5422 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5423 let next_line_row = row.next_row();
5424 let indent = snapshot.indent_size_for_line(next_line_row);
5425 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5426
5427 let replace = if snapshot.line_len(next_line_row) > indent.len {
5428 " "
5429 } else {
5430 ""
5431 };
5432
5433 this.buffer.update(cx, |buffer, cx| {
5434 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5435 });
5436 }
5437 }
5438
5439 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5440 s.select_anchor_ranges(cursor_positions)
5441 });
5442 });
5443 }
5444
5445 pub fn sort_lines_case_sensitive(
5446 &mut self,
5447 _: &SortLinesCaseSensitive,
5448 cx: &mut ViewContext<Self>,
5449 ) {
5450 self.manipulate_lines(cx, |lines| lines.sort())
5451 }
5452
5453 pub fn sort_lines_case_insensitive(
5454 &mut self,
5455 _: &SortLinesCaseInsensitive,
5456 cx: &mut ViewContext<Self>,
5457 ) {
5458 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5459 }
5460
5461 pub fn unique_lines_case_insensitive(
5462 &mut self,
5463 _: &UniqueLinesCaseInsensitive,
5464 cx: &mut ViewContext<Self>,
5465 ) {
5466 self.manipulate_lines(cx, |lines| {
5467 let mut seen = HashSet::default();
5468 lines.retain(|line| seen.insert(line.to_lowercase()));
5469 })
5470 }
5471
5472 pub fn unique_lines_case_sensitive(
5473 &mut self,
5474 _: &UniqueLinesCaseSensitive,
5475 cx: &mut ViewContext<Self>,
5476 ) {
5477 self.manipulate_lines(cx, |lines| {
5478 let mut seen = HashSet::default();
5479 lines.retain(|line| seen.insert(*line));
5480 })
5481 }
5482
5483 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5484 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5485 if !revert_changes.is_empty() {
5486 self.transact(cx, |editor, cx| {
5487 editor.buffer().update(cx, |multi_buffer, cx| {
5488 for (buffer_id, changes) in revert_changes {
5489 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5490 buffer.update(cx, |buffer, cx| {
5491 buffer.edit(
5492 changes.into_iter().map(|(range, text)| {
5493 (range, text.to_string().map(Arc::<str>::from))
5494 }),
5495 None,
5496 cx,
5497 );
5498 });
5499 }
5500 }
5501 });
5502 editor.change_selections(None, cx, |selections| selections.refresh());
5503 });
5504 }
5505 }
5506
5507 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5508 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5509 let project_path = buffer.read(cx).project_path(cx)?;
5510 let project = self.project.as_ref()?.read(cx);
5511 let entry = project.entry_for_path(&project_path, cx)?;
5512 let abs_path = project.absolute_path(&project_path, cx)?;
5513 let parent = if entry.is_symlink {
5514 abs_path.canonicalize().ok()?
5515 } else {
5516 abs_path
5517 }
5518 .parent()?
5519 .to_path_buf();
5520 Some(parent)
5521 }) {
5522 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5523 }
5524 }
5525
5526 fn gather_revert_changes(
5527 &mut self,
5528 selections: &[Selection<Anchor>],
5529 cx: &mut ViewContext<'_, Editor>,
5530 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5531 let mut revert_changes = HashMap::default();
5532 self.buffer.update(cx, |multi_buffer, cx| {
5533 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5534 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5535 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5536 }
5537 });
5538 revert_changes
5539 }
5540
5541 fn prepare_revert_change(
5542 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5543 multi_buffer: &MultiBuffer,
5544 hunk: &DiffHunk<MultiBufferRow>,
5545 cx: &mut AppContext,
5546 ) -> Option<()> {
5547 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5548 let buffer = buffer.read(cx);
5549 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5550 let buffer_snapshot = buffer.snapshot();
5551 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5552 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5553 probe
5554 .0
5555 .start
5556 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5557 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5558 }) {
5559 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5560 Some(())
5561 } else {
5562 None
5563 }
5564 }
5565
5566 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5567 self.manipulate_lines(cx, |lines| lines.reverse())
5568 }
5569
5570 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5571 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5572 }
5573
5574 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5575 where
5576 Fn: FnMut(&mut Vec<&str>),
5577 {
5578 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5579 let buffer = self.buffer.read(cx).snapshot(cx);
5580
5581 let mut edits = Vec::new();
5582
5583 let selections = self.selections.all::<Point>(cx);
5584 let mut selections = selections.iter().peekable();
5585 let mut contiguous_row_selections = Vec::new();
5586 let mut new_selections = Vec::new();
5587 let mut added_lines = 0;
5588 let mut removed_lines = 0;
5589
5590 while let Some(selection) = selections.next() {
5591 let (start_row, end_row) = consume_contiguous_rows(
5592 &mut contiguous_row_selections,
5593 selection,
5594 &display_map,
5595 &mut selections,
5596 );
5597
5598 let start_point = Point::new(start_row.0, 0);
5599 let end_point = Point::new(
5600 end_row.previous_row().0,
5601 buffer.line_len(end_row.previous_row()),
5602 );
5603 let text = buffer
5604 .text_for_range(start_point..end_point)
5605 .collect::<String>();
5606
5607 let mut lines = text.split('\n').collect_vec();
5608
5609 let lines_before = lines.len();
5610 callback(&mut lines);
5611 let lines_after = lines.len();
5612
5613 edits.push((start_point..end_point, lines.join("\n")));
5614
5615 // Selections must change based on added and removed line count
5616 let start_row =
5617 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5618 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5619 new_selections.push(Selection {
5620 id: selection.id,
5621 start: start_row,
5622 end: end_row,
5623 goal: SelectionGoal::None,
5624 reversed: selection.reversed,
5625 });
5626
5627 if lines_after > lines_before {
5628 added_lines += lines_after - lines_before;
5629 } else if lines_before > lines_after {
5630 removed_lines += lines_before - lines_after;
5631 }
5632 }
5633
5634 self.transact(cx, |this, cx| {
5635 let buffer = this.buffer.update(cx, |buffer, cx| {
5636 buffer.edit(edits, None, cx);
5637 buffer.snapshot(cx)
5638 });
5639
5640 // Recalculate offsets on newly edited buffer
5641 let new_selections = new_selections
5642 .iter()
5643 .map(|s| {
5644 let start_point = Point::new(s.start.0, 0);
5645 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5646 Selection {
5647 id: s.id,
5648 start: buffer.point_to_offset(start_point),
5649 end: buffer.point_to_offset(end_point),
5650 goal: s.goal,
5651 reversed: s.reversed,
5652 }
5653 })
5654 .collect();
5655
5656 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5657 s.select(new_selections);
5658 });
5659
5660 this.request_autoscroll(Autoscroll::fit(), cx);
5661 });
5662 }
5663
5664 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5665 self.manipulate_text(cx, |text| text.to_uppercase())
5666 }
5667
5668 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5669 self.manipulate_text(cx, |text| text.to_lowercase())
5670 }
5671
5672 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5673 self.manipulate_text(cx, |text| {
5674 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5675 // https://github.com/rutrum/convert-case/issues/16
5676 text.split('\n')
5677 .map(|line| line.to_case(Case::Title))
5678 .join("\n")
5679 })
5680 }
5681
5682 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5683 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5684 }
5685
5686 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5687 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5688 }
5689
5690 pub fn convert_to_upper_camel_case(
5691 &mut self,
5692 _: &ConvertToUpperCamelCase,
5693 cx: &mut ViewContext<Self>,
5694 ) {
5695 self.manipulate_text(cx, |text| {
5696 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5697 // https://github.com/rutrum/convert-case/issues/16
5698 text.split('\n')
5699 .map(|line| line.to_case(Case::UpperCamel))
5700 .join("\n")
5701 })
5702 }
5703
5704 pub fn convert_to_lower_camel_case(
5705 &mut self,
5706 _: &ConvertToLowerCamelCase,
5707 cx: &mut ViewContext<Self>,
5708 ) {
5709 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5710 }
5711
5712 pub fn convert_to_opposite_case(
5713 &mut self,
5714 _: &ConvertToOppositeCase,
5715 cx: &mut ViewContext<Self>,
5716 ) {
5717 self.manipulate_text(cx, |text| {
5718 text.chars()
5719 .fold(String::with_capacity(text.len()), |mut t, c| {
5720 if c.is_uppercase() {
5721 t.extend(c.to_lowercase());
5722 } else {
5723 t.extend(c.to_uppercase());
5724 }
5725 t
5726 })
5727 })
5728 }
5729
5730 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5731 where
5732 Fn: FnMut(&str) -> String,
5733 {
5734 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5735 let buffer = self.buffer.read(cx).snapshot(cx);
5736
5737 let mut new_selections = Vec::new();
5738 let mut edits = Vec::new();
5739 let mut selection_adjustment = 0i32;
5740
5741 for selection in self.selections.all::<usize>(cx) {
5742 let selection_is_empty = selection.is_empty();
5743
5744 let (start, end) = if selection_is_empty {
5745 let word_range = movement::surrounding_word(
5746 &display_map,
5747 selection.start.to_display_point(&display_map),
5748 );
5749 let start = word_range.start.to_offset(&display_map, Bias::Left);
5750 let end = word_range.end.to_offset(&display_map, Bias::Left);
5751 (start, end)
5752 } else {
5753 (selection.start, selection.end)
5754 };
5755
5756 let text = buffer.text_for_range(start..end).collect::<String>();
5757 let old_length = text.len() as i32;
5758 let text = callback(&text);
5759
5760 new_selections.push(Selection {
5761 start: (start as i32 - selection_adjustment) as usize,
5762 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5763 goal: SelectionGoal::None,
5764 ..selection
5765 });
5766
5767 selection_adjustment += old_length - text.len() as i32;
5768
5769 edits.push((start..end, text));
5770 }
5771
5772 self.transact(cx, |this, cx| {
5773 this.buffer.update(cx, |buffer, cx| {
5774 buffer.edit(edits, None, cx);
5775 });
5776
5777 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5778 s.select(new_selections);
5779 });
5780
5781 this.request_autoscroll(Autoscroll::fit(), cx);
5782 });
5783 }
5784
5785 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5786 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5787 let buffer = &display_map.buffer_snapshot;
5788 let selections = self.selections.all::<Point>(cx);
5789
5790 let mut edits = Vec::new();
5791 let mut selections_iter = selections.iter().peekable();
5792 while let Some(selection) = selections_iter.next() {
5793 // Avoid duplicating the same lines twice.
5794 let mut rows = selection.spanned_rows(false, &display_map);
5795
5796 while let Some(next_selection) = selections_iter.peek() {
5797 let next_rows = next_selection.spanned_rows(false, &display_map);
5798 if next_rows.start < rows.end {
5799 rows.end = next_rows.end;
5800 selections_iter.next().unwrap();
5801 } else {
5802 break;
5803 }
5804 }
5805
5806 // Copy the text from the selected row region and splice it either at the start
5807 // or end of the region.
5808 let start = Point::new(rows.start.0, 0);
5809 let end = Point::new(
5810 rows.end.previous_row().0,
5811 buffer.line_len(rows.end.previous_row()),
5812 );
5813 let text = buffer
5814 .text_for_range(start..end)
5815 .chain(Some("\n"))
5816 .collect::<String>();
5817 let insert_location = if upwards {
5818 Point::new(rows.end.0, 0)
5819 } else {
5820 start
5821 };
5822 edits.push((insert_location..insert_location, text));
5823 }
5824
5825 self.transact(cx, |this, cx| {
5826 this.buffer.update(cx, |buffer, cx| {
5827 buffer.edit(edits, None, cx);
5828 });
5829
5830 this.request_autoscroll(Autoscroll::fit(), cx);
5831 });
5832 }
5833
5834 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5835 self.duplicate_line(true, cx);
5836 }
5837
5838 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5839 self.duplicate_line(false, cx);
5840 }
5841
5842 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5843 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5844 let buffer = self.buffer.read(cx).snapshot(cx);
5845
5846 let mut edits = Vec::new();
5847 let mut unfold_ranges = Vec::new();
5848 let mut refold_ranges = Vec::new();
5849
5850 let selections = self.selections.all::<Point>(cx);
5851 let mut selections = selections.iter().peekable();
5852 let mut contiguous_row_selections = Vec::new();
5853 let mut new_selections = Vec::new();
5854
5855 while let Some(selection) = selections.next() {
5856 // Find all the selections that span a contiguous row range
5857 let (start_row, end_row) = consume_contiguous_rows(
5858 &mut contiguous_row_selections,
5859 selection,
5860 &display_map,
5861 &mut selections,
5862 );
5863
5864 // Move the text spanned by the row range to be before the line preceding the row range
5865 if start_row.0 > 0 {
5866 let range_to_move = Point::new(
5867 start_row.previous_row().0,
5868 buffer.line_len(start_row.previous_row()),
5869 )
5870 ..Point::new(
5871 end_row.previous_row().0,
5872 buffer.line_len(end_row.previous_row()),
5873 );
5874 let insertion_point = display_map
5875 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5876 .0;
5877
5878 // Don't move lines across excerpts
5879 if buffer
5880 .excerpt_boundaries_in_range((
5881 Bound::Excluded(insertion_point),
5882 Bound::Included(range_to_move.end),
5883 ))
5884 .next()
5885 .is_none()
5886 {
5887 let text = buffer
5888 .text_for_range(range_to_move.clone())
5889 .flat_map(|s| s.chars())
5890 .skip(1)
5891 .chain(['\n'])
5892 .collect::<String>();
5893
5894 edits.push((
5895 buffer.anchor_after(range_to_move.start)
5896 ..buffer.anchor_before(range_to_move.end),
5897 String::new(),
5898 ));
5899 let insertion_anchor = buffer.anchor_after(insertion_point);
5900 edits.push((insertion_anchor..insertion_anchor, text));
5901
5902 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5903
5904 // Move selections up
5905 new_selections.extend(contiguous_row_selections.drain(..).map(
5906 |mut selection| {
5907 selection.start.row -= row_delta;
5908 selection.end.row -= row_delta;
5909 selection
5910 },
5911 ));
5912
5913 // Move folds up
5914 unfold_ranges.push(range_to_move.clone());
5915 for fold in display_map.folds_in_range(
5916 buffer.anchor_before(range_to_move.start)
5917 ..buffer.anchor_after(range_to_move.end),
5918 ) {
5919 let mut start = fold.range.start.to_point(&buffer);
5920 let mut end = fold.range.end.to_point(&buffer);
5921 start.row -= row_delta;
5922 end.row -= row_delta;
5923 refold_ranges.push((start..end, fold.placeholder.clone()));
5924 }
5925 }
5926 }
5927
5928 // If we didn't move line(s), preserve the existing selections
5929 new_selections.append(&mut contiguous_row_selections);
5930 }
5931
5932 self.transact(cx, |this, cx| {
5933 this.unfold_ranges(unfold_ranges, true, true, cx);
5934 this.buffer.update(cx, |buffer, cx| {
5935 for (range, text) in edits {
5936 buffer.edit([(range, text)], None, cx);
5937 }
5938 });
5939 this.fold_ranges(refold_ranges, true, cx);
5940 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5941 s.select(new_selections);
5942 })
5943 });
5944 }
5945
5946 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5947 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5948 let buffer = self.buffer.read(cx).snapshot(cx);
5949
5950 let mut edits = Vec::new();
5951 let mut unfold_ranges = Vec::new();
5952 let mut refold_ranges = Vec::new();
5953
5954 let selections = self.selections.all::<Point>(cx);
5955 let mut selections = selections.iter().peekable();
5956 let mut contiguous_row_selections = Vec::new();
5957 let mut new_selections = Vec::new();
5958
5959 while let Some(selection) = selections.next() {
5960 // Find all the selections that span a contiguous row range
5961 let (start_row, end_row) = consume_contiguous_rows(
5962 &mut contiguous_row_selections,
5963 selection,
5964 &display_map,
5965 &mut selections,
5966 );
5967
5968 // Move the text spanned by the row range to be after the last line of the row range
5969 if end_row.0 <= buffer.max_point().row {
5970 let range_to_move =
5971 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5972 let insertion_point = display_map
5973 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5974 .0;
5975
5976 // Don't move lines across excerpt boundaries
5977 if buffer
5978 .excerpt_boundaries_in_range((
5979 Bound::Excluded(range_to_move.start),
5980 Bound::Included(insertion_point),
5981 ))
5982 .next()
5983 .is_none()
5984 {
5985 let mut text = String::from("\n");
5986 text.extend(buffer.text_for_range(range_to_move.clone()));
5987 text.pop(); // Drop trailing newline
5988 edits.push((
5989 buffer.anchor_after(range_to_move.start)
5990 ..buffer.anchor_before(range_to_move.end),
5991 String::new(),
5992 ));
5993 let insertion_anchor = buffer.anchor_after(insertion_point);
5994 edits.push((insertion_anchor..insertion_anchor, text));
5995
5996 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5997
5998 // Move selections down
5999 new_selections.extend(contiguous_row_selections.drain(..).map(
6000 |mut selection| {
6001 selection.start.row += row_delta;
6002 selection.end.row += row_delta;
6003 selection
6004 },
6005 ));
6006
6007 // Move folds down
6008 unfold_ranges.push(range_to_move.clone());
6009 for fold in display_map.folds_in_range(
6010 buffer.anchor_before(range_to_move.start)
6011 ..buffer.anchor_after(range_to_move.end),
6012 ) {
6013 let mut start = fold.range.start.to_point(&buffer);
6014 let mut end = fold.range.end.to_point(&buffer);
6015 start.row += row_delta;
6016 end.row += row_delta;
6017 refold_ranges.push((start..end, fold.placeholder.clone()));
6018 }
6019 }
6020 }
6021
6022 // If we didn't move line(s), preserve the existing selections
6023 new_selections.append(&mut contiguous_row_selections);
6024 }
6025
6026 self.transact(cx, |this, cx| {
6027 this.unfold_ranges(unfold_ranges, true, true, cx);
6028 this.buffer.update(cx, |buffer, cx| {
6029 for (range, text) in edits {
6030 buffer.edit([(range, text)], None, cx);
6031 }
6032 });
6033 this.fold_ranges(refold_ranges, true, cx);
6034 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6035 });
6036 }
6037
6038 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6039 let text_layout_details = &self.text_layout_details(cx);
6040 self.transact(cx, |this, cx| {
6041 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6042 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6043 let line_mode = s.line_mode;
6044 s.move_with(|display_map, selection| {
6045 if !selection.is_empty() || line_mode {
6046 return;
6047 }
6048
6049 let mut head = selection.head();
6050 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6051 if head.column() == display_map.line_len(head.row()) {
6052 transpose_offset = display_map
6053 .buffer_snapshot
6054 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6055 }
6056
6057 if transpose_offset == 0 {
6058 return;
6059 }
6060
6061 *head.column_mut() += 1;
6062 head = display_map.clip_point(head, Bias::Right);
6063 let goal = SelectionGoal::HorizontalPosition(
6064 display_map
6065 .x_for_display_point(head, &text_layout_details)
6066 .into(),
6067 );
6068 selection.collapse_to(head, goal);
6069
6070 let transpose_start = display_map
6071 .buffer_snapshot
6072 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6073 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6074 let transpose_end = display_map
6075 .buffer_snapshot
6076 .clip_offset(transpose_offset + 1, Bias::Right);
6077 if let Some(ch) =
6078 display_map.buffer_snapshot.chars_at(transpose_start).next()
6079 {
6080 edits.push((transpose_start..transpose_offset, String::new()));
6081 edits.push((transpose_end..transpose_end, ch.to_string()));
6082 }
6083 }
6084 });
6085 edits
6086 });
6087 this.buffer
6088 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6089 let selections = this.selections.all::<usize>(cx);
6090 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6091 s.select(selections);
6092 });
6093 });
6094 }
6095
6096 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6097 let mut text = String::new();
6098 let buffer = self.buffer.read(cx).snapshot(cx);
6099 let mut selections = self.selections.all::<Point>(cx);
6100 let mut clipboard_selections = Vec::with_capacity(selections.len());
6101 {
6102 let max_point = buffer.max_point();
6103 let mut is_first = true;
6104 for selection in &mut selections {
6105 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6106 if is_entire_line {
6107 selection.start = Point::new(selection.start.row, 0);
6108 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6109 selection.goal = SelectionGoal::None;
6110 }
6111 if is_first {
6112 is_first = false;
6113 } else {
6114 text += "\n";
6115 }
6116 let mut len = 0;
6117 for chunk in buffer.text_for_range(selection.start..selection.end) {
6118 text.push_str(chunk);
6119 len += chunk.len();
6120 }
6121 clipboard_selections.push(ClipboardSelection {
6122 len,
6123 is_entire_line,
6124 first_line_indent: buffer
6125 .indent_size_for_line(MultiBufferRow(selection.start.row))
6126 .len,
6127 });
6128 }
6129 }
6130
6131 self.transact(cx, |this, cx| {
6132 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6133 s.select(selections);
6134 });
6135 this.insert("", cx);
6136 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6137 });
6138 }
6139
6140 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6141 let selections = self.selections.all::<Point>(cx);
6142 let buffer = self.buffer.read(cx).read(cx);
6143 let mut text = String::new();
6144
6145 let mut clipboard_selections = Vec::with_capacity(selections.len());
6146 {
6147 let max_point = buffer.max_point();
6148 let mut is_first = true;
6149 for selection in selections.iter() {
6150 let mut start = selection.start;
6151 let mut end = selection.end;
6152 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6153 if is_entire_line {
6154 start = Point::new(start.row, 0);
6155 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6156 }
6157 if is_first {
6158 is_first = false;
6159 } else {
6160 text += "\n";
6161 }
6162 let mut len = 0;
6163 for chunk in buffer.text_for_range(start..end) {
6164 text.push_str(chunk);
6165 len += chunk.len();
6166 }
6167 clipboard_selections.push(ClipboardSelection {
6168 len,
6169 is_entire_line,
6170 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6171 });
6172 }
6173 }
6174
6175 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6176 }
6177
6178 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6179 if self.read_only(cx) {
6180 return;
6181 }
6182
6183 self.transact(cx, |this, cx| {
6184 if let Some(item) = cx.read_from_clipboard() {
6185 let clipboard_text = Cow::Borrowed(item.text());
6186 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6187 let old_selections = this.selections.all::<usize>(cx);
6188 let all_selections_were_entire_line =
6189 clipboard_selections.iter().all(|s| s.is_entire_line);
6190 let first_selection_indent_column =
6191 clipboard_selections.first().map(|s| s.first_line_indent);
6192 if clipboard_selections.len() != old_selections.len() {
6193 clipboard_selections.drain(..);
6194 }
6195
6196 this.buffer.update(cx, |buffer, cx| {
6197 let snapshot = buffer.read(cx);
6198 let mut start_offset = 0;
6199 let mut edits = Vec::new();
6200 let mut original_indent_columns = Vec::new();
6201 let line_mode = this.selections.line_mode;
6202 for (ix, selection) in old_selections.iter().enumerate() {
6203 let to_insert;
6204 let entire_line;
6205 let original_indent_column;
6206 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6207 let end_offset = start_offset + clipboard_selection.len;
6208 to_insert = &clipboard_text[start_offset..end_offset];
6209 entire_line = clipboard_selection.is_entire_line;
6210 start_offset = end_offset + 1;
6211 original_indent_column =
6212 Some(clipboard_selection.first_line_indent);
6213 } else {
6214 to_insert = clipboard_text.as_str();
6215 entire_line = all_selections_were_entire_line;
6216 original_indent_column = first_selection_indent_column
6217 }
6218
6219 // If the corresponding selection was empty when this slice of the
6220 // clipboard text was written, then the entire line containing the
6221 // selection was copied. If this selection is also currently empty,
6222 // then paste the line before the current line of the buffer.
6223 let range = if selection.is_empty() && !line_mode && entire_line {
6224 let column = selection.start.to_point(&snapshot).column as usize;
6225 let line_start = selection.start - column;
6226 line_start..line_start
6227 } else {
6228 selection.range()
6229 };
6230
6231 edits.push((range, to_insert));
6232 original_indent_columns.extend(original_indent_column);
6233 }
6234 drop(snapshot);
6235
6236 buffer.edit(
6237 edits,
6238 Some(AutoindentMode::Block {
6239 original_indent_columns,
6240 }),
6241 cx,
6242 );
6243 });
6244
6245 let selections = this.selections.all::<usize>(cx);
6246 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6247 } else {
6248 this.insert(&clipboard_text, cx);
6249 }
6250 }
6251 });
6252 }
6253
6254 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6255 if self.read_only(cx) {
6256 return;
6257 }
6258
6259 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6260 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6261 self.change_selections(None, cx, |s| {
6262 s.select_anchors(selections.to_vec());
6263 });
6264 }
6265 self.request_autoscroll(Autoscroll::fit(), cx);
6266 self.unmark_text(cx);
6267 self.refresh_inline_completion(true, cx);
6268 cx.emit(EditorEvent::Edited);
6269 cx.emit(EditorEvent::TransactionUndone {
6270 transaction_id: tx_id,
6271 });
6272 }
6273 }
6274
6275 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6276 if self.read_only(cx) {
6277 return;
6278 }
6279
6280 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6281 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6282 {
6283 self.change_selections(None, cx, |s| {
6284 s.select_anchors(selections.to_vec());
6285 });
6286 }
6287 self.request_autoscroll(Autoscroll::fit(), cx);
6288 self.unmark_text(cx);
6289 self.refresh_inline_completion(true, cx);
6290 cx.emit(EditorEvent::Edited);
6291 }
6292 }
6293
6294 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6295 self.buffer
6296 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6297 }
6298
6299 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6300 self.buffer
6301 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6302 }
6303
6304 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6306 let line_mode = s.line_mode;
6307 s.move_with(|map, selection| {
6308 let cursor = if selection.is_empty() && !line_mode {
6309 movement::left(map, selection.start)
6310 } else {
6311 selection.start
6312 };
6313 selection.collapse_to(cursor, SelectionGoal::None);
6314 });
6315 })
6316 }
6317
6318 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6319 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6320 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6321 })
6322 }
6323
6324 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6325 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6326 let line_mode = s.line_mode;
6327 s.move_with(|map, selection| {
6328 let cursor = if selection.is_empty() && !line_mode {
6329 movement::right(map, selection.end)
6330 } else {
6331 selection.end
6332 };
6333 selection.collapse_to(cursor, SelectionGoal::None)
6334 });
6335 })
6336 }
6337
6338 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6339 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6340 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6341 })
6342 }
6343
6344 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6345 if self.take_rename(true, cx).is_some() {
6346 return;
6347 }
6348
6349 if matches!(self.mode, EditorMode::SingleLine) {
6350 cx.propagate();
6351 return;
6352 }
6353
6354 let text_layout_details = &self.text_layout_details(cx);
6355
6356 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6357 let line_mode = s.line_mode;
6358 s.move_with(|map, selection| {
6359 if !selection.is_empty() && !line_mode {
6360 selection.goal = SelectionGoal::None;
6361 }
6362 let (cursor, goal) = movement::up(
6363 map,
6364 selection.start,
6365 selection.goal,
6366 false,
6367 &text_layout_details,
6368 );
6369 selection.collapse_to(cursor, goal);
6370 });
6371 })
6372 }
6373
6374 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6375 if self.take_rename(true, cx).is_some() {
6376 return;
6377 }
6378
6379 if matches!(self.mode, EditorMode::SingleLine) {
6380 cx.propagate();
6381 return;
6382 }
6383
6384 let text_layout_details = &self.text_layout_details(cx);
6385
6386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6387 let line_mode = s.line_mode;
6388 s.move_with(|map, selection| {
6389 if !selection.is_empty() && !line_mode {
6390 selection.goal = SelectionGoal::None;
6391 }
6392 let (cursor, goal) = movement::up_by_rows(
6393 map,
6394 selection.start,
6395 action.lines,
6396 selection.goal,
6397 false,
6398 &text_layout_details,
6399 );
6400 selection.collapse_to(cursor, goal);
6401 });
6402 })
6403 }
6404
6405 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6406 if self.take_rename(true, cx).is_some() {
6407 return;
6408 }
6409
6410 if matches!(self.mode, EditorMode::SingleLine) {
6411 cx.propagate();
6412 return;
6413 }
6414
6415 let text_layout_details = &self.text_layout_details(cx);
6416
6417 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6418 let line_mode = s.line_mode;
6419 s.move_with(|map, selection| {
6420 if !selection.is_empty() && !line_mode {
6421 selection.goal = SelectionGoal::None;
6422 }
6423 let (cursor, goal) = movement::down_by_rows(
6424 map,
6425 selection.start,
6426 action.lines,
6427 selection.goal,
6428 false,
6429 &text_layout_details,
6430 );
6431 selection.collapse_to(cursor, goal);
6432 });
6433 })
6434 }
6435
6436 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6437 let text_layout_details = &self.text_layout_details(cx);
6438 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6439 s.move_heads_with(|map, head, goal| {
6440 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6441 })
6442 })
6443 }
6444
6445 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6446 let text_layout_details = &self.text_layout_details(cx);
6447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6448 s.move_heads_with(|map, head, goal| {
6449 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6450 })
6451 })
6452 }
6453
6454 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6455 if self.take_rename(true, cx).is_some() {
6456 return;
6457 }
6458
6459 if matches!(self.mode, EditorMode::SingleLine) {
6460 cx.propagate();
6461 return;
6462 }
6463
6464 let row_count = if let Some(row_count) = self.visible_line_count() {
6465 row_count as u32 - 1
6466 } else {
6467 return;
6468 };
6469
6470 let autoscroll = if action.center_cursor {
6471 Autoscroll::center()
6472 } else {
6473 Autoscroll::fit()
6474 };
6475
6476 let text_layout_details = &self.text_layout_details(cx);
6477
6478 self.change_selections(Some(autoscroll), cx, |s| {
6479 let line_mode = s.line_mode;
6480 s.move_with(|map, selection| {
6481 if !selection.is_empty() && !line_mode {
6482 selection.goal = SelectionGoal::None;
6483 }
6484 let (cursor, goal) = movement::up_by_rows(
6485 map,
6486 selection.end,
6487 row_count,
6488 selection.goal,
6489 false,
6490 &text_layout_details,
6491 );
6492 selection.collapse_to(cursor, goal);
6493 });
6494 });
6495 }
6496
6497 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6498 let text_layout_details = &self.text_layout_details(cx);
6499 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6500 s.move_heads_with(|map, head, goal| {
6501 movement::up(map, head, goal, false, &text_layout_details)
6502 })
6503 })
6504 }
6505
6506 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6507 self.take_rename(true, cx);
6508
6509 if self.mode == EditorMode::SingleLine {
6510 cx.propagate();
6511 return;
6512 }
6513
6514 let text_layout_details = &self.text_layout_details(cx);
6515 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6516 let line_mode = s.line_mode;
6517 s.move_with(|map, selection| {
6518 if !selection.is_empty() && !line_mode {
6519 selection.goal = SelectionGoal::None;
6520 }
6521 let (cursor, goal) = movement::down(
6522 map,
6523 selection.end,
6524 selection.goal,
6525 false,
6526 &text_layout_details,
6527 );
6528 selection.collapse_to(cursor, goal);
6529 });
6530 });
6531 }
6532
6533 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6534 if self.take_rename(true, cx).is_some() {
6535 return;
6536 }
6537
6538 if self
6539 .context_menu
6540 .write()
6541 .as_mut()
6542 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6543 .unwrap_or(false)
6544 {
6545 return;
6546 }
6547
6548 if matches!(self.mode, EditorMode::SingleLine) {
6549 cx.propagate();
6550 return;
6551 }
6552
6553 let row_count = if let Some(row_count) = self.visible_line_count() {
6554 row_count as u32 - 1
6555 } else {
6556 return;
6557 };
6558
6559 let autoscroll = if action.center_cursor {
6560 Autoscroll::center()
6561 } else {
6562 Autoscroll::fit()
6563 };
6564
6565 let text_layout_details = &self.text_layout_details(cx);
6566 self.change_selections(Some(autoscroll), cx, |s| {
6567 let line_mode = s.line_mode;
6568 s.move_with(|map, selection| {
6569 if !selection.is_empty() && !line_mode {
6570 selection.goal = SelectionGoal::None;
6571 }
6572 let (cursor, goal) = movement::down_by_rows(
6573 map,
6574 selection.end,
6575 row_count,
6576 selection.goal,
6577 false,
6578 &text_layout_details,
6579 );
6580 selection.collapse_to(cursor, goal);
6581 });
6582 });
6583 }
6584
6585 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6586 let text_layout_details = &self.text_layout_details(cx);
6587 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6588 s.move_heads_with(|map, head, goal| {
6589 movement::down(map, head, goal, false, &text_layout_details)
6590 })
6591 });
6592 }
6593
6594 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6595 if let Some(context_menu) = self.context_menu.write().as_mut() {
6596 context_menu.select_first(self.project.as_ref(), cx);
6597 }
6598 }
6599
6600 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6601 if let Some(context_menu) = self.context_menu.write().as_mut() {
6602 context_menu.select_prev(self.project.as_ref(), cx);
6603 }
6604 }
6605
6606 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6607 if let Some(context_menu) = self.context_menu.write().as_mut() {
6608 context_menu.select_next(self.project.as_ref(), cx);
6609 }
6610 }
6611
6612 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6613 if let Some(context_menu) = self.context_menu.write().as_mut() {
6614 context_menu.select_last(self.project.as_ref(), cx);
6615 }
6616 }
6617
6618 pub fn move_to_previous_word_start(
6619 &mut self,
6620 _: &MoveToPreviousWordStart,
6621 cx: &mut ViewContext<Self>,
6622 ) {
6623 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6624 s.move_cursors_with(|map, head, _| {
6625 (
6626 movement::previous_word_start(map, head),
6627 SelectionGoal::None,
6628 )
6629 });
6630 })
6631 }
6632
6633 pub fn move_to_previous_subword_start(
6634 &mut self,
6635 _: &MoveToPreviousSubwordStart,
6636 cx: &mut ViewContext<Self>,
6637 ) {
6638 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6639 s.move_cursors_with(|map, head, _| {
6640 (
6641 movement::previous_subword_start(map, head),
6642 SelectionGoal::None,
6643 )
6644 });
6645 })
6646 }
6647
6648 pub fn select_to_previous_word_start(
6649 &mut self,
6650 _: &SelectToPreviousWordStart,
6651 cx: &mut ViewContext<Self>,
6652 ) {
6653 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6654 s.move_heads_with(|map, head, _| {
6655 (
6656 movement::previous_word_start(map, head),
6657 SelectionGoal::None,
6658 )
6659 });
6660 })
6661 }
6662
6663 pub fn select_to_previous_subword_start(
6664 &mut self,
6665 _: &SelectToPreviousSubwordStart,
6666 cx: &mut ViewContext<Self>,
6667 ) {
6668 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6669 s.move_heads_with(|map, head, _| {
6670 (
6671 movement::previous_subword_start(map, head),
6672 SelectionGoal::None,
6673 )
6674 });
6675 })
6676 }
6677
6678 pub fn delete_to_previous_word_start(
6679 &mut self,
6680 _: &DeleteToPreviousWordStart,
6681 cx: &mut ViewContext<Self>,
6682 ) {
6683 self.transact(cx, |this, cx| {
6684 this.select_autoclose_pair(cx);
6685 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6686 let line_mode = s.line_mode;
6687 s.move_with(|map, selection| {
6688 if selection.is_empty() && !line_mode {
6689 let cursor = movement::previous_word_start(map, selection.head());
6690 selection.set_head(cursor, SelectionGoal::None);
6691 }
6692 });
6693 });
6694 this.insert("", cx);
6695 });
6696 }
6697
6698 pub fn delete_to_previous_subword_start(
6699 &mut self,
6700 _: &DeleteToPreviousSubwordStart,
6701 cx: &mut ViewContext<Self>,
6702 ) {
6703 self.transact(cx, |this, cx| {
6704 this.select_autoclose_pair(cx);
6705 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6706 let line_mode = s.line_mode;
6707 s.move_with(|map, selection| {
6708 if selection.is_empty() && !line_mode {
6709 let cursor = movement::previous_subword_start(map, selection.head());
6710 selection.set_head(cursor, SelectionGoal::None);
6711 }
6712 });
6713 });
6714 this.insert("", cx);
6715 });
6716 }
6717
6718 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6719 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6720 s.move_cursors_with(|map, head, _| {
6721 (movement::next_word_end(map, head), SelectionGoal::None)
6722 });
6723 })
6724 }
6725
6726 pub fn move_to_next_subword_end(
6727 &mut self,
6728 _: &MoveToNextSubwordEnd,
6729 cx: &mut ViewContext<Self>,
6730 ) {
6731 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6732 s.move_cursors_with(|map, head, _| {
6733 (movement::next_subword_end(map, head), SelectionGoal::None)
6734 });
6735 })
6736 }
6737
6738 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6739 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6740 s.move_heads_with(|map, head, _| {
6741 (movement::next_word_end(map, head), SelectionGoal::None)
6742 });
6743 })
6744 }
6745
6746 pub fn select_to_next_subword_end(
6747 &mut self,
6748 _: &SelectToNextSubwordEnd,
6749 cx: &mut ViewContext<Self>,
6750 ) {
6751 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6752 s.move_heads_with(|map, head, _| {
6753 (movement::next_subword_end(map, head), SelectionGoal::None)
6754 });
6755 })
6756 }
6757
6758 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6759 self.transact(cx, |this, cx| {
6760 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6761 let line_mode = s.line_mode;
6762 s.move_with(|map, selection| {
6763 if selection.is_empty() && !line_mode {
6764 let cursor = movement::next_word_end(map, selection.head());
6765 selection.set_head(cursor, SelectionGoal::None);
6766 }
6767 });
6768 });
6769 this.insert("", cx);
6770 });
6771 }
6772
6773 pub fn delete_to_next_subword_end(
6774 &mut self,
6775 _: &DeleteToNextSubwordEnd,
6776 cx: &mut ViewContext<Self>,
6777 ) {
6778 self.transact(cx, |this, cx| {
6779 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6780 s.move_with(|map, selection| {
6781 if selection.is_empty() {
6782 let cursor = movement::next_subword_end(map, selection.head());
6783 selection.set_head(cursor, SelectionGoal::None);
6784 }
6785 });
6786 });
6787 this.insert("", cx);
6788 });
6789 }
6790
6791 pub fn move_to_beginning_of_line(
6792 &mut self,
6793 action: &MoveToBeginningOfLine,
6794 cx: &mut ViewContext<Self>,
6795 ) {
6796 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6797 s.move_cursors_with(|map, head, _| {
6798 (
6799 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6800 SelectionGoal::None,
6801 )
6802 });
6803 })
6804 }
6805
6806 pub fn select_to_beginning_of_line(
6807 &mut self,
6808 action: &SelectToBeginningOfLine,
6809 cx: &mut ViewContext<Self>,
6810 ) {
6811 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6812 s.move_heads_with(|map, head, _| {
6813 (
6814 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6815 SelectionGoal::None,
6816 )
6817 });
6818 });
6819 }
6820
6821 pub fn delete_to_beginning_of_line(
6822 &mut self,
6823 _: &DeleteToBeginningOfLine,
6824 cx: &mut ViewContext<Self>,
6825 ) {
6826 self.transact(cx, |this, cx| {
6827 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6828 s.move_with(|_, selection| {
6829 selection.reversed = true;
6830 });
6831 });
6832
6833 this.select_to_beginning_of_line(
6834 &SelectToBeginningOfLine {
6835 stop_at_soft_wraps: false,
6836 },
6837 cx,
6838 );
6839 this.backspace(&Backspace, cx);
6840 });
6841 }
6842
6843 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6844 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6845 s.move_cursors_with(|map, head, _| {
6846 (
6847 movement::line_end(map, head, action.stop_at_soft_wraps),
6848 SelectionGoal::None,
6849 )
6850 });
6851 })
6852 }
6853
6854 pub fn select_to_end_of_line(
6855 &mut self,
6856 action: &SelectToEndOfLine,
6857 cx: &mut ViewContext<Self>,
6858 ) {
6859 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6860 s.move_heads_with(|map, head, _| {
6861 (
6862 movement::line_end(map, head, action.stop_at_soft_wraps),
6863 SelectionGoal::None,
6864 )
6865 });
6866 })
6867 }
6868
6869 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6870 self.transact(cx, |this, cx| {
6871 this.select_to_end_of_line(
6872 &SelectToEndOfLine {
6873 stop_at_soft_wraps: false,
6874 },
6875 cx,
6876 );
6877 this.delete(&Delete, cx);
6878 });
6879 }
6880
6881 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6882 self.transact(cx, |this, cx| {
6883 this.select_to_end_of_line(
6884 &SelectToEndOfLine {
6885 stop_at_soft_wraps: false,
6886 },
6887 cx,
6888 );
6889 this.cut(&Cut, cx);
6890 });
6891 }
6892
6893 pub fn move_to_start_of_paragraph(
6894 &mut self,
6895 _: &MoveToStartOfParagraph,
6896 cx: &mut ViewContext<Self>,
6897 ) {
6898 if matches!(self.mode, EditorMode::SingleLine) {
6899 cx.propagate();
6900 return;
6901 }
6902
6903 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6904 s.move_with(|map, selection| {
6905 selection.collapse_to(
6906 movement::start_of_paragraph(map, selection.head(), 1),
6907 SelectionGoal::None,
6908 )
6909 });
6910 })
6911 }
6912
6913 pub fn move_to_end_of_paragraph(
6914 &mut self,
6915 _: &MoveToEndOfParagraph,
6916 cx: &mut ViewContext<Self>,
6917 ) {
6918 if matches!(self.mode, EditorMode::SingleLine) {
6919 cx.propagate();
6920 return;
6921 }
6922
6923 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6924 s.move_with(|map, selection| {
6925 selection.collapse_to(
6926 movement::end_of_paragraph(map, selection.head(), 1),
6927 SelectionGoal::None,
6928 )
6929 });
6930 })
6931 }
6932
6933 pub fn select_to_start_of_paragraph(
6934 &mut self,
6935 _: &SelectToStartOfParagraph,
6936 cx: &mut ViewContext<Self>,
6937 ) {
6938 if matches!(self.mode, EditorMode::SingleLine) {
6939 cx.propagate();
6940 return;
6941 }
6942
6943 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6944 s.move_heads_with(|map, head, _| {
6945 (
6946 movement::start_of_paragraph(map, head, 1),
6947 SelectionGoal::None,
6948 )
6949 });
6950 })
6951 }
6952
6953 pub fn select_to_end_of_paragraph(
6954 &mut self,
6955 _: &SelectToEndOfParagraph,
6956 cx: &mut ViewContext<Self>,
6957 ) {
6958 if matches!(self.mode, EditorMode::SingleLine) {
6959 cx.propagate();
6960 return;
6961 }
6962
6963 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6964 s.move_heads_with(|map, head, _| {
6965 (
6966 movement::end_of_paragraph(map, head, 1),
6967 SelectionGoal::None,
6968 )
6969 });
6970 })
6971 }
6972
6973 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6974 if matches!(self.mode, EditorMode::SingleLine) {
6975 cx.propagate();
6976 return;
6977 }
6978
6979 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6980 s.select_ranges(vec![0..0]);
6981 });
6982 }
6983
6984 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6985 let mut selection = self.selections.last::<Point>(cx);
6986 selection.set_head(Point::zero(), SelectionGoal::None);
6987
6988 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6989 s.select(vec![selection]);
6990 });
6991 }
6992
6993 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6994 if matches!(self.mode, EditorMode::SingleLine) {
6995 cx.propagate();
6996 return;
6997 }
6998
6999 let cursor = self.buffer.read(cx).read(cx).len();
7000 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7001 s.select_ranges(vec![cursor..cursor])
7002 });
7003 }
7004
7005 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7006 self.nav_history = nav_history;
7007 }
7008
7009 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7010 self.nav_history.as_ref()
7011 }
7012
7013 fn push_to_nav_history(
7014 &mut self,
7015 cursor_anchor: Anchor,
7016 new_position: Option<Point>,
7017 cx: &mut ViewContext<Self>,
7018 ) {
7019 if let Some(nav_history) = self.nav_history.as_mut() {
7020 let buffer = self.buffer.read(cx).read(cx);
7021 let cursor_position = cursor_anchor.to_point(&buffer);
7022 let scroll_state = self.scroll_manager.anchor();
7023 let scroll_top_row = scroll_state.top_row(&buffer);
7024 drop(buffer);
7025
7026 if let Some(new_position) = new_position {
7027 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7028 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7029 return;
7030 }
7031 }
7032
7033 nav_history.push(
7034 Some(NavigationData {
7035 cursor_anchor,
7036 cursor_position,
7037 scroll_anchor: scroll_state,
7038 scroll_top_row,
7039 }),
7040 cx,
7041 );
7042 }
7043 }
7044
7045 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7046 let buffer = self.buffer.read(cx).snapshot(cx);
7047 let mut selection = self.selections.first::<usize>(cx);
7048 selection.set_head(buffer.len(), SelectionGoal::None);
7049 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7050 s.select(vec![selection]);
7051 });
7052 }
7053
7054 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7055 let end = self.buffer.read(cx).read(cx).len();
7056 self.change_selections(None, cx, |s| {
7057 s.select_ranges(vec![0..end]);
7058 });
7059 }
7060
7061 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7062 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7063 let mut selections = self.selections.all::<Point>(cx);
7064 let max_point = display_map.buffer_snapshot.max_point();
7065 for selection in &mut selections {
7066 let rows = selection.spanned_rows(true, &display_map);
7067 selection.start = Point::new(rows.start.0, 0);
7068 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7069 selection.reversed = false;
7070 }
7071 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7072 s.select(selections);
7073 });
7074 }
7075
7076 pub fn split_selection_into_lines(
7077 &mut self,
7078 _: &SplitSelectionIntoLines,
7079 cx: &mut ViewContext<Self>,
7080 ) {
7081 let mut to_unfold = Vec::new();
7082 let mut new_selection_ranges = Vec::new();
7083 {
7084 let selections = self.selections.all::<Point>(cx);
7085 let buffer = self.buffer.read(cx).read(cx);
7086 for selection in selections {
7087 for row in selection.start.row..selection.end.row {
7088 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7089 new_selection_ranges.push(cursor..cursor);
7090 }
7091 new_selection_ranges.push(selection.end..selection.end);
7092 to_unfold.push(selection.start..selection.end);
7093 }
7094 }
7095 self.unfold_ranges(to_unfold, true, true, cx);
7096 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7097 s.select_ranges(new_selection_ranges);
7098 });
7099 }
7100
7101 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7102 self.add_selection(true, cx);
7103 }
7104
7105 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7106 self.add_selection(false, cx);
7107 }
7108
7109 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7110 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7111 let mut selections = self.selections.all::<Point>(cx);
7112 let text_layout_details = self.text_layout_details(cx);
7113 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7114 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7115 let range = oldest_selection.display_range(&display_map).sorted();
7116
7117 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7118 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7119 let positions = start_x.min(end_x)..start_x.max(end_x);
7120
7121 selections.clear();
7122 let mut stack = Vec::new();
7123 for row in range.start.row().0..=range.end.row().0 {
7124 if let Some(selection) = self.selections.build_columnar_selection(
7125 &display_map,
7126 DisplayRow(row),
7127 &positions,
7128 oldest_selection.reversed,
7129 &text_layout_details,
7130 ) {
7131 stack.push(selection.id);
7132 selections.push(selection);
7133 }
7134 }
7135
7136 if above {
7137 stack.reverse();
7138 }
7139
7140 AddSelectionsState { above, stack }
7141 });
7142
7143 let last_added_selection = *state.stack.last().unwrap();
7144 let mut new_selections = Vec::new();
7145 if above == state.above {
7146 let end_row = if above {
7147 DisplayRow(0)
7148 } else {
7149 display_map.max_point().row()
7150 };
7151
7152 'outer: for selection in selections {
7153 if selection.id == last_added_selection {
7154 let range = selection.display_range(&display_map).sorted();
7155 debug_assert_eq!(range.start.row(), range.end.row());
7156 let mut row = range.start.row();
7157 let positions =
7158 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7159 px(start)..px(end)
7160 } else {
7161 let start_x =
7162 display_map.x_for_display_point(range.start, &text_layout_details);
7163 let end_x =
7164 display_map.x_for_display_point(range.end, &text_layout_details);
7165 start_x.min(end_x)..start_x.max(end_x)
7166 };
7167
7168 while row != end_row {
7169 if above {
7170 row.0 -= 1;
7171 } else {
7172 row.0 += 1;
7173 }
7174
7175 if let Some(new_selection) = self.selections.build_columnar_selection(
7176 &display_map,
7177 row,
7178 &positions,
7179 selection.reversed,
7180 &text_layout_details,
7181 ) {
7182 state.stack.push(new_selection.id);
7183 if above {
7184 new_selections.push(new_selection);
7185 new_selections.push(selection);
7186 } else {
7187 new_selections.push(selection);
7188 new_selections.push(new_selection);
7189 }
7190
7191 continue 'outer;
7192 }
7193 }
7194 }
7195
7196 new_selections.push(selection);
7197 }
7198 } else {
7199 new_selections = selections;
7200 new_selections.retain(|s| s.id != last_added_selection);
7201 state.stack.pop();
7202 }
7203
7204 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7205 s.select(new_selections);
7206 });
7207 if state.stack.len() > 1 {
7208 self.add_selections_state = Some(state);
7209 }
7210 }
7211
7212 pub fn select_next_match_internal(
7213 &mut self,
7214 display_map: &DisplaySnapshot,
7215 replace_newest: bool,
7216 autoscroll: Option<Autoscroll>,
7217 cx: &mut ViewContext<Self>,
7218 ) -> Result<()> {
7219 fn select_next_match_ranges(
7220 this: &mut Editor,
7221 range: Range<usize>,
7222 replace_newest: bool,
7223 auto_scroll: Option<Autoscroll>,
7224 cx: &mut ViewContext<Editor>,
7225 ) {
7226 this.unfold_ranges([range.clone()], false, true, cx);
7227 this.change_selections(auto_scroll, cx, |s| {
7228 if replace_newest {
7229 s.delete(s.newest_anchor().id);
7230 }
7231 s.insert_range(range.clone());
7232 });
7233 }
7234
7235 let buffer = &display_map.buffer_snapshot;
7236 let mut selections = self.selections.all::<usize>(cx);
7237 if let Some(mut select_next_state) = self.select_next_state.take() {
7238 let query = &select_next_state.query;
7239 if !select_next_state.done {
7240 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7241 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7242 let mut next_selected_range = None;
7243
7244 let bytes_after_last_selection =
7245 buffer.bytes_in_range(last_selection.end..buffer.len());
7246 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7247 let query_matches = query
7248 .stream_find_iter(bytes_after_last_selection)
7249 .map(|result| (last_selection.end, result))
7250 .chain(
7251 query
7252 .stream_find_iter(bytes_before_first_selection)
7253 .map(|result| (0, result)),
7254 );
7255
7256 for (start_offset, query_match) in query_matches {
7257 let query_match = query_match.unwrap(); // can only fail due to I/O
7258 let offset_range =
7259 start_offset + query_match.start()..start_offset + query_match.end();
7260 let display_range = offset_range.start.to_display_point(&display_map)
7261 ..offset_range.end.to_display_point(&display_map);
7262
7263 if !select_next_state.wordwise
7264 || (!movement::is_inside_word(&display_map, display_range.start)
7265 && !movement::is_inside_word(&display_map, display_range.end))
7266 {
7267 // TODO: This is n^2, because we might check all the selections
7268 if !selections
7269 .iter()
7270 .any(|selection| selection.range().overlaps(&offset_range))
7271 {
7272 next_selected_range = Some(offset_range);
7273 break;
7274 }
7275 }
7276 }
7277
7278 if let Some(next_selected_range) = next_selected_range {
7279 select_next_match_ranges(
7280 self,
7281 next_selected_range,
7282 replace_newest,
7283 autoscroll,
7284 cx,
7285 );
7286 } else {
7287 select_next_state.done = true;
7288 }
7289 }
7290
7291 self.select_next_state = Some(select_next_state);
7292 } else {
7293 let mut only_carets = true;
7294 let mut same_text_selected = true;
7295 let mut selected_text = None;
7296
7297 let mut selections_iter = selections.iter().peekable();
7298 while let Some(selection) = selections_iter.next() {
7299 if selection.start != selection.end {
7300 only_carets = false;
7301 }
7302
7303 if same_text_selected {
7304 if selected_text.is_none() {
7305 selected_text =
7306 Some(buffer.text_for_range(selection.range()).collect::<String>());
7307 }
7308
7309 if let Some(next_selection) = selections_iter.peek() {
7310 if next_selection.range().len() == selection.range().len() {
7311 let next_selected_text = buffer
7312 .text_for_range(next_selection.range())
7313 .collect::<String>();
7314 if Some(next_selected_text) != selected_text {
7315 same_text_selected = false;
7316 selected_text = None;
7317 }
7318 } else {
7319 same_text_selected = false;
7320 selected_text = None;
7321 }
7322 }
7323 }
7324 }
7325
7326 if only_carets {
7327 for selection in &mut selections {
7328 let word_range = movement::surrounding_word(
7329 &display_map,
7330 selection.start.to_display_point(&display_map),
7331 );
7332 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7333 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7334 selection.goal = SelectionGoal::None;
7335 selection.reversed = false;
7336 select_next_match_ranges(
7337 self,
7338 selection.start..selection.end,
7339 replace_newest,
7340 autoscroll,
7341 cx,
7342 );
7343 }
7344
7345 if selections.len() == 1 {
7346 let selection = selections
7347 .last()
7348 .expect("ensured that there's only one selection");
7349 let query = buffer
7350 .text_for_range(selection.start..selection.end)
7351 .collect::<String>();
7352 let is_empty = query.is_empty();
7353 let select_state = SelectNextState {
7354 query: AhoCorasick::new(&[query])?,
7355 wordwise: true,
7356 done: is_empty,
7357 };
7358 self.select_next_state = Some(select_state);
7359 } else {
7360 self.select_next_state = None;
7361 }
7362 } else if let Some(selected_text) = selected_text {
7363 self.select_next_state = Some(SelectNextState {
7364 query: AhoCorasick::new(&[selected_text])?,
7365 wordwise: false,
7366 done: false,
7367 });
7368 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7369 }
7370 }
7371 Ok(())
7372 }
7373
7374 pub fn select_all_matches(
7375 &mut self,
7376 _action: &SelectAllMatches,
7377 cx: &mut ViewContext<Self>,
7378 ) -> Result<()> {
7379 self.push_to_selection_history();
7380 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7381
7382 self.select_next_match_internal(&display_map, false, None, cx)?;
7383 let Some(select_next_state) = self.select_next_state.as_mut() else {
7384 return Ok(());
7385 };
7386 if select_next_state.done {
7387 return Ok(());
7388 }
7389
7390 let mut new_selections = self.selections.all::<usize>(cx);
7391
7392 let buffer = &display_map.buffer_snapshot;
7393 let query_matches = select_next_state
7394 .query
7395 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7396
7397 for query_match in query_matches {
7398 let query_match = query_match.unwrap(); // can only fail due to I/O
7399 let offset_range = query_match.start()..query_match.end();
7400 let display_range = offset_range.start.to_display_point(&display_map)
7401 ..offset_range.end.to_display_point(&display_map);
7402
7403 if !select_next_state.wordwise
7404 || (!movement::is_inside_word(&display_map, display_range.start)
7405 && !movement::is_inside_word(&display_map, display_range.end))
7406 {
7407 self.selections.change_with(cx, |selections| {
7408 new_selections.push(Selection {
7409 id: selections.new_selection_id(),
7410 start: offset_range.start,
7411 end: offset_range.end,
7412 reversed: false,
7413 goal: SelectionGoal::None,
7414 });
7415 });
7416 }
7417 }
7418
7419 new_selections.sort_by_key(|selection| selection.start);
7420 let mut ix = 0;
7421 while ix + 1 < new_selections.len() {
7422 let current_selection = &new_selections[ix];
7423 let next_selection = &new_selections[ix + 1];
7424 if current_selection.range().overlaps(&next_selection.range()) {
7425 if current_selection.id < next_selection.id {
7426 new_selections.remove(ix + 1);
7427 } else {
7428 new_selections.remove(ix);
7429 }
7430 } else {
7431 ix += 1;
7432 }
7433 }
7434
7435 select_next_state.done = true;
7436 self.unfold_ranges(
7437 new_selections.iter().map(|selection| selection.range()),
7438 false,
7439 false,
7440 cx,
7441 );
7442 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7443 selections.select(new_selections)
7444 });
7445
7446 Ok(())
7447 }
7448
7449 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7450 self.push_to_selection_history();
7451 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7452 self.select_next_match_internal(
7453 &display_map,
7454 action.replace_newest,
7455 Some(Autoscroll::newest()),
7456 cx,
7457 )?;
7458 Ok(())
7459 }
7460
7461 pub fn select_previous(
7462 &mut self,
7463 action: &SelectPrevious,
7464 cx: &mut ViewContext<Self>,
7465 ) -> Result<()> {
7466 self.push_to_selection_history();
7467 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7468 let buffer = &display_map.buffer_snapshot;
7469 let mut selections = self.selections.all::<usize>(cx);
7470 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7471 let query = &select_prev_state.query;
7472 if !select_prev_state.done {
7473 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7474 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7475 let mut next_selected_range = None;
7476 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7477 let bytes_before_last_selection =
7478 buffer.reversed_bytes_in_range(0..last_selection.start);
7479 let bytes_after_first_selection =
7480 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7481 let query_matches = query
7482 .stream_find_iter(bytes_before_last_selection)
7483 .map(|result| (last_selection.start, result))
7484 .chain(
7485 query
7486 .stream_find_iter(bytes_after_first_selection)
7487 .map(|result| (buffer.len(), result)),
7488 );
7489 for (end_offset, query_match) in query_matches {
7490 let query_match = query_match.unwrap(); // can only fail due to I/O
7491 let offset_range =
7492 end_offset - query_match.end()..end_offset - query_match.start();
7493 let display_range = offset_range.start.to_display_point(&display_map)
7494 ..offset_range.end.to_display_point(&display_map);
7495
7496 if !select_prev_state.wordwise
7497 || (!movement::is_inside_word(&display_map, display_range.start)
7498 && !movement::is_inside_word(&display_map, display_range.end))
7499 {
7500 next_selected_range = Some(offset_range);
7501 break;
7502 }
7503 }
7504
7505 if let Some(next_selected_range) = next_selected_range {
7506 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7507 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7508 if action.replace_newest {
7509 s.delete(s.newest_anchor().id);
7510 }
7511 s.insert_range(next_selected_range);
7512 });
7513 } else {
7514 select_prev_state.done = true;
7515 }
7516 }
7517
7518 self.select_prev_state = Some(select_prev_state);
7519 } else {
7520 let mut only_carets = true;
7521 let mut same_text_selected = true;
7522 let mut selected_text = None;
7523
7524 let mut selections_iter = selections.iter().peekable();
7525 while let Some(selection) = selections_iter.next() {
7526 if selection.start != selection.end {
7527 only_carets = false;
7528 }
7529
7530 if same_text_selected {
7531 if selected_text.is_none() {
7532 selected_text =
7533 Some(buffer.text_for_range(selection.range()).collect::<String>());
7534 }
7535
7536 if let Some(next_selection) = selections_iter.peek() {
7537 if next_selection.range().len() == selection.range().len() {
7538 let next_selected_text = buffer
7539 .text_for_range(next_selection.range())
7540 .collect::<String>();
7541 if Some(next_selected_text) != selected_text {
7542 same_text_selected = false;
7543 selected_text = None;
7544 }
7545 } else {
7546 same_text_selected = false;
7547 selected_text = None;
7548 }
7549 }
7550 }
7551 }
7552
7553 if only_carets {
7554 for selection in &mut selections {
7555 let word_range = movement::surrounding_word(
7556 &display_map,
7557 selection.start.to_display_point(&display_map),
7558 );
7559 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7560 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7561 selection.goal = SelectionGoal::None;
7562 selection.reversed = false;
7563 }
7564 if selections.len() == 1 {
7565 let selection = selections
7566 .last()
7567 .expect("ensured that there's only one selection");
7568 let query = buffer
7569 .text_for_range(selection.start..selection.end)
7570 .collect::<String>();
7571 let is_empty = query.is_empty();
7572 let select_state = SelectNextState {
7573 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7574 wordwise: true,
7575 done: is_empty,
7576 };
7577 self.select_prev_state = Some(select_state);
7578 } else {
7579 self.select_prev_state = None;
7580 }
7581
7582 self.unfold_ranges(
7583 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7584 false,
7585 true,
7586 cx,
7587 );
7588 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7589 s.select(selections);
7590 });
7591 } else if let Some(selected_text) = selected_text {
7592 self.select_prev_state = Some(SelectNextState {
7593 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7594 wordwise: false,
7595 done: false,
7596 });
7597 self.select_previous(action, cx)?;
7598 }
7599 }
7600 Ok(())
7601 }
7602
7603 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7604 let text_layout_details = &self.text_layout_details(cx);
7605 self.transact(cx, |this, cx| {
7606 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7607 let mut edits = Vec::new();
7608 let mut selection_edit_ranges = Vec::new();
7609 let mut last_toggled_row = None;
7610 let snapshot = this.buffer.read(cx).read(cx);
7611 let empty_str: Arc<str> = "".into();
7612 let mut suffixes_inserted = Vec::new();
7613
7614 fn comment_prefix_range(
7615 snapshot: &MultiBufferSnapshot,
7616 row: MultiBufferRow,
7617 comment_prefix: &str,
7618 comment_prefix_whitespace: &str,
7619 ) -> Range<Point> {
7620 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7621
7622 let mut line_bytes = snapshot
7623 .bytes_in_range(start..snapshot.max_point())
7624 .flatten()
7625 .copied();
7626
7627 // If this line currently begins with the line comment prefix, then record
7628 // the range containing the prefix.
7629 if line_bytes
7630 .by_ref()
7631 .take(comment_prefix.len())
7632 .eq(comment_prefix.bytes())
7633 {
7634 // Include any whitespace that matches the comment prefix.
7635 let matching_whitespace_len = line_bytes
7636 .zip(comment_prefix_whitespace.bytes())
7637 .take_while(|(a, b)| a == b)
7638 .count() as u32;
7639 let end = Point::new(
7640 start.row,
7641 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7642 );
7643 start..end
7644 } else {
7645 start..start
7646 }
7647 }
7648
7649 fn comment_suffix_range(
7650 snapshot: &MultiBufferSnapshot,
7651 row: MultiBufferRow,
7652 comment_suffix: &str,
7653 comment_suffix_has_leading_space: bool,
7654 ) -> Range<Point> {
7655 let end = Point::new(row.0, snapshot.line_len(row));
7656 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7657
7658 let mut line_end_bytes = snapshot
7659 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7660 .flatten()
7661 .copied();
7662
7663 let leading_space_len = if suffix_start_column > 0
7664 && line_end_bytes.next() == Some(b' ')
7665 && comment_suffix_has_leading_space
7666 {
7667 1
7668 } else {
7669 0
7670 };
7671
7672 // If this line currently begins with the line comment prefix, then record
7673 // the range containing the prefix.
7674 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7675 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7676 start..end
7677 } else {
7678 end..end
7679 }
7680 }
7681
7682 // TODO: Handle selections that cross excerpts
7683 for selection in &mut selections {
7684 let start_column = snapshot
7685 .indent_size_for_line(MultiBufferRow(selection.start.row))
7686 .len;
7687 let language = if let Some(language) =
7688 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7689 {
7690 language
7691 } else {
7692 continue;
7693 };
7694
7695 selection_edit_ranges.clear();
7696
7697 // If multiple selections contain a given row, avoid processing that
7698 // row more than once.
7699 let mut start_row = MultiBufferRow(selection.start.row);
7700 if last_toggled_row == Some(start_row) {
7701 start_row = start_row.next_row();
7702 }
7703 let end_row =
7704 if selection.end.row > selection.start.row && selection.end.column == 0 {
7705 MultiBufferRow(selection.end.row - 1)
7706 } else {
7707 MultiBufferRow(selection.end.row)
7708 };
7709 last_toggled_row = Some(end_row);
7710
7711 if start_row > end_row {
7712 continue;
7713 }
7714
7715 // If the language has line comments, toggle those.
7716 let full_comment_prefixes = language.line_comment_prefixes();
7717 if !full_comment_prefixes.is_empty() {
7718 let first_prefix = full_comment_prefixes
7719 .first()
7720 .expect("prefixes is non-empty");
7721 let prefix_trimmed_lengths = full_comment_prefixes
7722 .iter()
7723 .map(|p| p.trim_end_matches(' ').len())
7724 .collect::<SmallVec<[usize; 4]>>();
7725
7726 let mut all_selection_lines_are_comments = true;
7727
7728 for row in start_row.0..=end_row.0 {
7729 let row = MultiBufferRow(row);
7730 if start_row < end_row && snapshot.is_line_blank(row) {
7731 continue;
7732 }
7733
7734 let prefix_range = full_comment_prefixes
7735 .iter()
7736 .zip(prefix_trimmed_lengths.iter().copied())
7737 .map(|(prefix, trimmed_prefix_len)| {
7738 comment_prefix_range(
7739 snapshot.deref(),
7740 row,
7741 &prefix[..trimmed_prefix_len],
7742 &prefix[trimmed_prefix_len..],
7743 )
7744 })
7745 .max_by_key(|range| range.end.column - range.start.column)
7746 .expect("prefixes is non-empty");
7747
7748 if prefix_range.is_empty() {
7749 all_selection_lines_are_comments = false;
7750 }
7751
7752 selection_edit_ranges.push(prefix_range);
7753 }
7754
7755 if all_selection_lines_are_comments {
7756 edits.extend(
7757 selection_edit_ranges
7758 .iter()
7759 .cloned()
7760 .map(|range| (range, empty_str.clone())),
7761 );
7762 } else {
7763 let min_column = selection_edit_ranges
7764 .iter()
7765 .map(|range| range.start.column)
7766 .min()
7767 .unwrap_or(0);
7768 edits.extend(selection_edit_ranges.iter().map(|range| {
7769 let position = Point::new(range.start.row, min_column);
7770 (position..position, first_prefix.clone())
7771 }));
7772 }
7773 } else if let Some((full_comment_prefix, comment_suffix)) =
7774 language.block_comment_delimiters()
7775 {
7776 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7777 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7778 let prefix_range = comment_prefix_range(
7779 snapshot.deref(),
7780 start_row,
7781 comment_prefix,
7782 comment_prefix_whitespace,
7783 );
7784 let suffix_range = comment_suffix_range(
7785 snapshot.deref(),
7786 end_row,
7787 comment_suffix.trim_start_matches(' '),
7788 comment_suffix.starts_with(' '),
7789 );
7790
7791 if prefix_range.is_empty() || suffix_range.is_empty() {
7792 edits.push((
7793 prefix_range.start..prefix_range.start,
7794 full_comment_prefix.clone(),
7795 ));
7796 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7797 suffixes_inserted.push((end_row, comment_suffix.len()));
7798 } else {
7799 edits.push((prefix_range, empty_str.clone()));
7800 edits.push((suffix_range, empty_str.clone()));
7801 }
7802 } else {
7803 continue;
7804 }
7805 }
7806
7807 drop(snapshot);
7808 this.buffer.update(cx, |buffer, cx| {
7809 buffer.edit(edits, None, cx);
7810 });
7811
7812 // Adjust selections so that they end before any comment suffixes that
7813 // were inserted.
7814 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7815 let mut selections = this.selections.all::<Point>(cx);
7816 let snapshot = this.buffer.read(cx).read(cx);
7817 for selection in &mut selections {
7818 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7819 match row.cmp(&MultiBufferRow(selection.end.row)) {
7820 Ordering::Less => {
7821 suffixes_inserted.next();
7822 continue;
7823 }
7824 Ordering::Greater => break,
7825 Ordering::Equal => {
7826 if selection.end.column == snapshot.line_len(row) {
7827 if selection.is_empty() {
7828 selection.start.column -= suffix_len as u32;
7829 }
7830 selection.end.column -= suffix_len as u32;
7831 }
7832 break;
7833 }
7834 }
7835 }
7836 }
7837
7838 drop(snapshot);
7839 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7840
7841 let selections = this.selections.all::<Point>(cx);
7842 let selections_on_single_row = selections.windows(2).all(|selections| {
7843 selections[0].start.row == selections[1].start.row
7844 && selections[0].end.row == selections[1].end.row
7845 && selections[0].start.row == selections[0].end.row
7846 });
7847 let selections_selecting = selections
7848 .iter()
7849 .any(|selection| selection.start != selection.end);
7850 let advance_downwards = action.advance_downwards
7851 && selections_on_single_row
7852 && !selections_selecting
7853 && this.mode != EditorMode::SingleLine;
7854
7855 if advance_downwards {
7856 let snapshot = this.buffer.read(cx).snapshot(cx);
7857
7858 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7859 s.move_cursors_with(|display_snapshot, display_point, _| {
7860 let mut point = display_point.to_point(display_snapshot);
7861 point.row += 1;
7862 point = snapshot.clip_point(point, Bias::Left);
7863 let display_point = point.to_display_point(display_snapshot);
7864 let goal = SelectionGoal::HorizontalPosition(
7865 display_snapshot
7866 .x_for_display_point(display_point, &text_layout_details)
7867 .into(),
7868 );
7869 (display_point, goal)
7870 })
7871 });
7872 }
7873 });
7874 }
7875
7876 pub fn select_larger_syntax_node(
7877 &mut self,
7878 _: &SelectLargerSyntaxNode,
7879 cx: &mut ViewContext<Self>,
7880 ) {
7881 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7882 let buffer = self.buffer.read(cx).snapshot(cx);
7883 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7884
7885 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7886 let mut selected_larger_node = false;
7887 let new_selections = old_selections
7888 .iter()
7889 .map(|selection| {
7890 let old_range = selection.start..selection.end;
7891 let mut new_range = old_range.clone();
7892 while let Some(containing_range) =
7893 buffer.range_for_syntax_ancestor(new_range.clone())
7894 {
7895 new_range = containing_range;
7896 if !display_map.intersects_fold(new_range.start)
7897 && !display_map.intersects_fold(new_range.end)
7898 {
7899 break;
7900 }
7901 }
7902
7903 selected_larger_node |= new_range != old_range;
7904 Selection {
7905 id: selection.id,
7906 start: new_range.start,
7907 end: new_range.end,
7908 goal: SelectionGoal::None,
7909 reversed: selection.reversed,
7910 }
7911 })
7912 .collect::<Vec<_>>();
7913
7914 if selected_larger_node {
7915 stack.push(old_selections);
7916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.select(new_selections);
7918 });
7919 }
7920 self.select_larger_syntax_node_stack = stack;
7921 }
7922
7923 pub fn select_smaller_syntax_node(
7924 &mut self,
7925 _: &SelectSmallerSyntaxNode,
7926 cx: &mut ViewContext<Self>,
7927 ) {
7928 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7929 if let Some(selections) = stack.pop() {
7930 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7931 s.select(selections.to_vec());
7932 });
7933 }
7934 self.select_larger_syntax_node_stack = stack;
7935 }
7936
7937 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7938 let project = self.project.clone();
7939 cx.spawn(|this, mut cx| async move {
7940 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7941 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7942 }) else {
7943 return;
7944 };
7945
7946 let Some(project) = project else {
7947 return;
7948 };
7949
7950 let hide_runnables = project
7951 .update(&mut cx, |project, cx| {
7952 // Do not display any test indicators in non-dev server remote projects.
7953 project.is_remote() && project.ssh_connection_string(cx).is_none()
7954 })
7955 .unwrap_or(true);
7956 if hide_runnables {
7957 return;
7958 }
7959 let new_rows =
7960 cx.background_executor()
7961 .spawn({
7962 let snapshot = display_snapshot.clone();
7963 async move {
7964 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7965 }
7966 })
7967 .await;
7968 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7969
7970 this.update(&mut cx, |this, _| {
7971 this.clear_tasks();
7972 for (key, value) in rows {
7973 this.insert_tasks(key, value);
7974 }
7975 })
7976 .ok();
7977 })
7978 }
7979 fn fetch_runnable_ranges(
7980 snapshot: &DisplaySnapshot,
7981 range: Range<Anchor>,
7982 ) -> Vec<language::RunnableRange> {
7983 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7984 }
7985
7986 fn runnable_rows(
7987 project: Model<Project>,
7988 snapshot: DisplaySnapshot,
7989 runnable_ranges: Vec<RunnableRange>,
7990 mut cx: AsyncWindowContext,
7991 ) -> Vec<((BufferId, u32), RunnableTasks)> {
7992 runnable_ranges
7993 .into_iter()
7994 .filter_map(|mut runnable| {
7995 let tasks = cx
7996 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
7997 .ok()?;
7998 if tasks.is_empty() {
7999 return None;
8000 }
8001
8002 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8003
8004 let row = snapshot
8005 .buffer_snapshot
8006 .buffer_line_for_row(MultiBufferRow(point.row))?
8007 .1
8008 .start
8009 .row;
8010
8011 let context_range =
8012 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8013 Some((
8014 (runnable.buffer_id, row),
8015 RunnableTasks {
8016 templates: tasks,
8017 offset: MultiBufferOffset(runnable.run_range.start),
8018 context_range,
8019 column: point.column,
8020 extra_variables: runnable.extra_captures,
8021 },
8022 ))
8023 })
8024 .collect()
8025 }
8026
8027 fn templates_with_tags(
8028 project: &Model<Project>,
8029 runnable: &mut Runnable,
8030 cx: &WindowContext<'_>,
8031 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8032 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
8033 let worktree_id = project
8034 .buffer_for_id(runnable.buffer)
8035 .and_then(|buffer| buffer.read(cx).file())
8036 .map(|file| WorktreeId::from_usize(file.worktree_id()));
8037
8038 (project.task_inventory().clone(), worktree_id)
8039 });
8040
8041 let inventory = inventory.read(cx);
8042 let tags = mem::take(&mut runnable.tags);
8043 let mut tags: Vec<_> = tags
8044 .into_iter()
8045 .flat_map(|tag| {
8046 let tag = tag.0.clone();
8047 inventory
8048 .list_tasks(Some(runnable.language.clone()), worktree_id)
8049 .into_iter()
8050 .filter(move |(_, template)| {
8051 template.tags.iter().any(|source_tag| source_tag == &tag)
8052 })
8053 })
8054 .sorted_by_key(|(kind, _)| kind.to_owned())
8055 .collect();
8056 if let Some((leading_tag_source, _)) = tags.first() {
8057 // Strongest source wins; if we have worktree tag binding, prefer that to
8058 // global and language bindings;
8059 // if we have a global binding, prefer that to language binding.
8060 let first_mismatch = tags
8061 .iter()
8062 .position(|(tag_source, _)| tag_source != leading_tag_source);
8063 if let Some(index) = first_mismatch {
8064 tags.truncate(index);
8065 }
8066 }
8067
8068 tags
8069 }
8070
8071 pub fn move_to_enclosing_bracket(
8072 &mut self,
8073 _: &MoveToEnclosingBracket,
8074 cx: &mut ViewContext<Self>,
8075 ) {
8076 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8077 s.move_offsets_with(|snapshot, selection| {
8078 let Some(enclosing_bracket_ranges) =
8079 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8080 else {
8081 return;
8082 };
8083
8084 let mut best_length = usize::MAX;
8085 let mut best_inside = false;
8086 let mut best_in_bracket_range = false;
8087 let mut best_destination = None;
8088 for (open, close) in enclosing_bracket_ranges {
8089 let close = close.to_inclusive();
8090 let length = close.end() - open.start;
8091 let inside = selection.start >= open.end && selection.end <= *close.start();
8092 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8093 || close.contains(&selection.head());
8094
8095 // If best is next to a bracket and current isn't, skip
8096 if !in_bracket_range && best_in_bracket_range {
8097 continue;
8098 }
8099
8100 // Prefer smaller lengths unless best is inside and current isn't
8101 if length > best_length && (best_inside || !inside) {
8102 continue;
8103 }
8104
8105 best_length = length;
8106 best_inside = inside;
8107 best_in_bracket_range = in_bracket_range;
8108 best_destination = Some(
8109 if close.contains(&selection.start) && close.contains(&selection.end) {
8110 if inside {
8111 open.end
8112 } else {
8113 open.start
8114 }
8115 } else {
8116 if inside {
8117 *close.start()
8118 } else {
8119 *close.end()
8120 }
8121 },
8122 );
8123 }
8124
8125 if let Some(destination) = best_destination {
8126 selection.collapse_to(destination, SelectionGoal::None);
8127 }
8128 })
8129 });
8130 }
8131
8132 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8133 self.end_selection(cx);
8134 self.selection_history.mode = SelectionHistoryMode::Undoing;
8135 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8136 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8137 self.select_next_state = entry.select_next_state;
8138 self.select_prev_state = entry.select_prev_state;
8139 self.add_selections_state = entry.add_selections_state;
8140 self.request_autoscroll(Autoscroll::newest(), cx);
8141 }
8142 self.selection_history.mode = SelectionHistoryMode::Normal;
8143 }
8144
8145 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8146 self.end_selection(cx);
8147 self.selection_history.mode = SelectionHistoryMode::Redoing;
8148 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8149 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8150 self.select_next_state = entry.select_next_state;
8151 self.select_prev_state = entry.select_prev_state;
8152 self.add_selections_state = entry.add_selections_state;
8153 self.request_autoscroll(Autoscroll::newest(), cx);
8154 }
8155 self.selection_history.mode = SelectionHistoryMode::Normal;
8156 }
8157
8158 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8159 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8160 }
8161
8162 pub fn expand_excerpts_down(
8163 &mut self,
8164 action: &ExpandExcerptsDown,
8165 cx: &mut ViewContext<Self>,
8166 ) {
8167 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8168 }
8169
8170 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8171 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8172 }
8173
8174 pub fn expand_excerpts_for_direction(
8175 &mut self,
8176 lines: u32,
8177 direction: ExpandExcerptDirection,
8178 cx: &mut ViewContext<Self>,
8179 ) {
8180 let selections = self.selections.disjoint_anchors();
8181
8182 let lines = if lines == 0 {
8183 EditorSettings::get_global(cx).expand_excerpt_lines
8184 } else {
8185 lines
8186 };
8187
8188 self.buffer.update(cx, |buffer, cx| {
8189 buffer.expand_excerpts(
8190 selections
8191 .into_iter()
8192 .map(|selection| selection.head().excerpt_id)
8193 .dedup(),
8194 lines,
8195 direction,
8196 cx,
8197 )
8198 })
8199 }
8200
8201 pub fn expand_excerpt(
8202 &mut self,
8203 excerpt: ExcerptId,
8204 direction: ExpandExcerptDirection,
8205 cx: &mut ViewContext<Self>,
8206 ) {
8207 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8208 self.buffer.update(cx, |buffer, cx| {
8209 buffer.expand_excerpts([excerpt], lines, direction, cx)
8210 })
8211 }
8212
8213 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8214 self.go_to_diagnostic_impl(Direction::Next, cx)
8215 }
8216
8217 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8218 self.go_to_diagnostic_impl(Direction::Prev, cx)
8219 }
8220
8221 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8222 let buffer = self.buffer.read(cx).snapshot(cx);
8223 let selection = self.selections.newest::<usize>(cx);
8224
8225 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8226 if direction == Direction::Next {
8227 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8228 let (group_id, jump_to) = popover.activation_info();
8229 if self.activate_diagnostics(group_id, cx) {
8230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8231 let mut new_selection = s.newest_anchor().clone();
8232 new_selection.collapse_to(jump_to, SelectionGoal::None);
8233 s.select_anchors(vec![new_selection.clone()]);
8234 });
8235 }
8236 return;
8237 }
8238 }
8239
8240 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8241 active_diagnostics
8242 .primary_range
8243 .to_offset(&buffer)
8244 .to_inclusive()
8245 });
8246 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8247 if active_primary_range.contains(&selection.head()) {
8248 *active_primary_range.start()
8249 } else {
8250 selection.head()
8251 }
8252 } else {
8253 selection.head()
8254 };
8255 let snapshot = self.snapshot(cx);
8256 loop {
8257 let diagnostics = if direction == Direction::Prev {
8258 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8259 } else {
8260 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8261 }
8262 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8263 let group = diagnostics
8264 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8265 // be sorted in a stable way
8266 // skip until we are at current active diagnostic, if it exists
8267 .skip_while(|entry| {
8268 (match direction {
8269 Direction::Prev => entry.range.start >= search_start,
8270 Direction::Next => entry.range.start <= search_start,
8271 }) && self
8272 .active_diagnostics
8273 .as_ref()
8274 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8275 })
8276 .find_map(|entry| {
8277 if entry.diagnostic.is_primary
8278 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8279 && !entry.range.is_empty()
8280 // if we match with the active diagnostic, skip it
8281 && Some(entry.diagnostic.group_id)
8282 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8283 {
8284 Some((entry.range, entry.diagnostic.group_id))
8285 } else {
8286 None
8287 }
8288 });
8289
8290 if let Some((primary_range, group_id)) = group {
8291 if self.activate_diagnostics(group_id, cx) {
8292 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8293 s.select(vec![Selection {
8294 id: selection.id,
8295 start: primary_range.start,
8296 end: primary_range.start,
8297 reversed: false,
8298 goal: SelectionGoal::None,
8299 }]);
8300 });
8301 }
8302 break;
8303 } else {
8304 // Cycle around to the start of the buffer, potentially moving back to the start of
8305 // the currently active diagnostic.
8306 active_primary_range.take();
8307 if direction == Direction::Prev {
8308 if search_start == buffer.len() {
8309 break;
8310 } else {
8311 search_start = buffer.len();
8312 }
8313 } else if search_start == 0 {
8314 break;
8315 } else {
8316 search_start = 0;
8317 }
8318 }
8319 }
8320 }
8321
8322 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8323 let snapshot = self
8324 .display_map
8325 .update(cx, |display_map, cx| display_map.snapshot(cx));
8326 let selection = self.selections.newest::<Point>(cx);
8327
8328 if !self.seek_in_direction(
8329 &snapshot,
8330 selection.head(),
8331 false,
8332 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8333 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8334 ),
8335 cx,
8336 ) {
8337 let wrapped_point = Point::zero();
8338 self.seek_in_direction(
8339 &snapshot,
8340 wrapped_point,
8341 true,
8342 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8343 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8344 ),
8345 cx,
8346 );
8347 }
8348 }
8349
8350 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8351 let snapshot = self
8352 .display_map
8353 .update(cx, |display_map, cx| display_map.snapshot(cx));
8354 let selection = self.selections.newest::<Point>(cx);
8355
8356 if !self.seek_in_direction(
8357 &snapshot,
8358 selection.head(),
8359 false,
8360 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8361 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8362 ),
8363 cx,
8364 ) {
8365 let wrapped_point = snapshot.buffer_snapshot.max_point();
8366 self.seek_in_direction(
8367 &snapshot,
8368 wrapped_point,
8369 true,
8370 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8371 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8372 ),
8373 cx,
8374 );
8375 }
8376 }
8377
8378 fn seek_in_direction(
8379 &mut self,
8380 snapshot: &DisplaySnapshot,
8381 initial_point: Point,
8382 is_wrapped: bool,
8383 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8384 cx: &mut ViewContext<Editor>,
8385 ) -> bool {
8386 let display_point = initial_point.to_display_point(snapshot);
8387 let mut hunks = hunks
8388 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8389 .filter(|hunk| {
8390 if is_wrapped {
8391 true
8392 } else {
8393 !hunk.contains_display_row(display_point.row())
8394 }
8395 })
8396 .dedup();
8397
8398 if let Some(hunk) = hunks.next() {
8399 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8400 let row = hunk.start_display_row();
8401 let point = DisplayPoint::new(row, 0);
8402 s.select_display_ranges([point..point]);
8403 });
8404
8405 true
8406 } else {
8407 false
8408 }
8409 }
8410
8411 pub fn go_to_definition(
8412 &mut self,
8413 _: &GoToDefinition,
8414 cx: &mut ViewContext<Self>,
8415 ) -> Task<Result<bool>> {
8416 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8417 }
8418
8419 pub fn go_to_implementation(
8420 &mut self,
8421 _: &GoToImplementation,
8422 cx: &mut ViewContext<Self>,
8423 ) -> Task<Result<bool>> {
8424 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8425 }
8426
8427 pub fn go_to_implementation_split(
8428 &mut self,
8429 _: &GoToImplementationSplit,
8430 cx: &mut ViewContext<Self>,
8431 ) -> Task<Result<bool>> {
8432 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8433 }
8434
8435 pub fn go_to_type_definition(
8436 &mut self,
8437 _: &GoToTypeDefinition,
8438 cx: &mut ViewContext<Self>,
8439 ) -> Task<Result<bool>> {
8440 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8441 }
8442
8443 pub fn go_to_definition_split(
8444 &mut self,
8445 _: &GoToDefinitionSplit,
8446 cx: &mut ViewContext<Self>,
8447 ) -> Task<Result<bool>> {
8448 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8449 }
8450
8451 pub fn go_to_type_definition_split(
8452 &mut self,
8453 _: &GoToTypeDefinitionSplit,
8454 cx: &mut ViewContext<Self>,
8455 ) -> Task<Result<bool>> {
8456 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8457 }
8458
8459 fn go_to_definition_of_kind(
8460 &mut self,
8461 kind: GotoDefinitionKind,
8462 split: bool,
8463 cx: &mut ViewContext<Self>,
8464 ) -> Task<Result<bool>> {
8465 let Some(workspace) = self.workspace() else {
8466 return Task::ready(Ok(false));
8467 };
8468 let buffer = self.buffer.read(cx);
8469 let head = self.selections.newest::<usize>(cx).head();
8470 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8471 text_anchor
8472 } else {
8473 return Task::ready(Ok(false));
8474 };
8475
8476 let project = workspace.read(cx).project().clone();
8477 let definitions = project.update(cx, |project, cx| match kind {
8478 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8479 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8480 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8481 });
8482
8483 cx.spawn(|editor, mut cx| async move {
8484 let definitions = definitions.await?;
8485 let navigated = editor
8486 .update(&mut cx, |editor, cx| {
8487 editor.navigate_to_hover_links(
8488 Some(kind),
8489 definitions
8490 .into_iter()
8491 .filter(|location| {
8492 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8493 })
8494 .map(HoverLink::Text)
8495 .collect::<Vec<_>>(),
8496 split,
8497 cx,
8498 )
8499 })?
8500 .await?;
8501 anyhow::Ok(navigated)
8502 })
8503 }
8504
8505 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8506 let position = self.selections.newest_anchor().head();
8507 let Some((buffer, buffer_position)) =
8508 self.buffer.read(cx).text_anchor_for_position(position, cx)
8509 else {
8510 return;
8511 };
8512
8513 cx.spawn(|editor, mut cx| async move {
8514 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8515 editor.update(&mut cx, |_, cx| {
8516 cx.open_url(&url);
8517 })
8518 } else {
8519 Ok(())
8520 }
8521 })
8522 .detach();
8523 }
8524
8525 pub(crate) fn navigate_to_hover_links(
8526 &mut self,
8527 kind: Option<GotoDefinitionKind>,
8528 mut definitions: Vec<HoverLink>,
8529 split: bool,
8530 cx: &mut ViewContext<Editor>,
8531 ) -> Task<Result<bool>> {
8532 // If there is one definition, just open it directly
8533 if definitions.len() == 1 {
8534 let definition = definitions.pop().unwrap();
8535 let target_task = match definition {
8536 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8537 HoverLink::InlayHint(lsp_location, server_id) => {
8538 self.compute_target_location(lsp_location, server_id, cx)
8539 }
8540 HoverLink::Url(url) => {
8541 cx.open_url(&url);
8542 Task::ready(Ok(None))
8543 }
8544 };
8545 cx.spawn(|editor, mut cx| async move {
8546 let target = target_task.await.context("target resolution task")?;
8547 if let Some(target) = target {
8548 editor.update(&mut cx, |editor, cx| {
8549 let Some(workspace) = editor.workspace() else {
8550 return false;
8551 };
8552 let pane = workspace.read(cx).active_pane().clone();
8553
8554 let range = target.range.to_offset(target.buffer.read(cx));
8555 let range = editor.range_for_match(&range);
8556
8557 /// If select range has more than one line, we
8558 /// just point the cursor to range.start.
8559 fn check_multiline_range(
8560 buffer: &Buffer,
8561 range: Range<usize>,
8562 ) -> Range<usize> {
8563 if buffer.offset_to_point(range.start).row
8564 == buffer.offset_to_point(range.end).row
8565 {
8566 range
8567 } else {
8568 range.start..range.start
8569 }
8570 }
8571
8572 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8573 let buffer = target.buffer.read(cx);
8574 let range = check_multiline_range(buffer, range);
8575 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8576 s.select_ranges([range]);
8577 });
8578 } else {
8579 cx.window_context().defer(move |cx| {
8580 let target_editor: View<Self> =
8581 workspace.update(cx, |workspace, cx| {
8582 let pane = if split {
8583 workspace.adjacent_pane(cx)
8584 } else {
8585 workspace.active_pane().clone()
8586 };
8587
8588 workspace.open_project_item(pane, target.buffer.clone(), cx)
8589 });
8590 target_editor.update(cx, |target_editor, cx| {
8591 // When selecting a definition in a different buffer, disable the nav history
8592 // to avoid creating a history entry at the previous cursor location.
8593 pane.update(cx, |pane, _| pane.disable_history());
8594 let buffer = target.buffer.read(cx);
8595 let range = check_multiline_range(buffer, range);
8596 target_editor.change_selections(
8597 Some(Autoscroll::focused()),
8598 cx,
8599 |s| {
8600 s.select_ranges([range]);
8601 },
8602 );
8603 pane.update(cx, |pane, _| pane.enable_history());
8604 });
8605 });
8606 }
8607 true
8608 })
8609 } else {
8610 Ok(false)
8611 }
8612 })
8613 } else if !definitions.is_empty() {
8614 let replica_id = self.replica_id(cx);
8615 cx.spawn(|editor, mut cx| async move {
8616 let (title, location_tasks, workspace) = editor
8617 .update(&mut cx, |editor, cx| {
8618 let tab_kind = match kind {
8619 Some(GotoDefinitionKind::Implementation) => "Implementations",
8620 _ => "Definitions",
8621 };
8622 let title = definitions
8623 .iter()
8624 .find_map(|definition| match definition {
8625 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8626 let buffer = origin.buffer.read(cx);
8627 format!(
8628 "{} for {}",
8629 tab_kind,
8630 buffer
8631 .text_for_range(origin.range.clone())
8632 .collect::<String>()
8633 )
8634 }),
8635 HoverLink::InlayHint(_, _) => None,
8636 HoverLink::Url(_) => None,
8637 })
8638 .unwrap_or(tab_kind.to_string());
8639 let location_tasks = definitions
8640 .into_iter()
8641 .map(|definition| match definition {
8642 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8643 HoverLink::InlayHint(lsp_location, server_id) => {
8644 editor.compute_target_location(lsp_location, server_id, cx)
8645 }
8646 HoverLink::Url(_) => Task::ready(Ok(None)),
8647 })
8648 .collect::<Vec<_>>();
8649 (title, location_tasks, editor.workspace().clone())
8650 })
8651 .context("location tasks preparation")?;
8652
8653 let locations = futures::future::join_all(location_tasks)
8654 .await
8655 .into_iter()
8656 .filter_map(|location| location.transpose())
8657 .collect::<Result<_>>()
8658 .context("location tasks")?;
8659
8660 let Some(workspace) = workspace else {
8661 return Ok(false);
8662 };
8663 let opened = workspace
8664 .update(&mut cx, |workspace, cx| {
8665 Self::open_locations_in_multibuffer(
8666 workspace, locations, replica_id, title, split, cx,
8667 )
8668 })
8669 .ok();
8670
8671 anyhow::Ok(opened.is_some())
8672 })
8673 } else {
8674 Task::ready(Ok(false))
8675 }
8676 }
8677
8678 fn compute_target_location(
8679 &self,
8680 lsp_location: lsp::Location,
8681 server_id: LanguageServerId,
8682 cx: &mut ViewContext<Editor>,
8683 ) -> Task<anyhow::Result<Option<Location>>> {
8684 let Some(project) = self.project.clone() else {
8685 return Task::Ready(Some(Ok(None)));
8686 };
8687
8688 cx.spawn(move |editor, mut cx| async move {
8689 let location_task = editor.update(&mut cx, |editor, cx| {
8690 project.update(cx, |project, cx| {
8691 let language_server_name =
8692 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8693 project
8694 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8695 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8696 });
8697 language_server_name.map(|language_server_name| {
8698 project.open_local_buffer_via_lsp(
8699 lsp_location.uri.clone(),
8700 server_id,
8701 language_server_name,
8702 cx,
8703 )
8704 })
8705 })
8706 })?;
8707 let location = match location_task {
8708 Some(task) => Some({
8709 let target_buffer_handle = task.await.context("open local buffer")?;
8710 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8711 let target_start = target_buffer
8712 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8713 let target_end = target_buffer
8714 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8715 target_buffer.anchor_after(target_start)
8716 ..target_buffer.anchor_before(target_end)
8717 })?;
8718 Location {
8719 buffer: target_buffer_handle,
8720 range,
8721 }
8722 }),
8723 None => None,
8724 };
8725 Ok(location)
8726 })
8727 }
8728
8729 pub fn find_all_references(
8730 &mut self,
8731 _: &FindAllReferences,
8732 cx: &mut ViewContext<Self>,
8733 ) -> Option<Task<Result<()>>> {
8734 let multi_buffer = self.buffer.read(cx);
8735 let selection = self.selections.newest::<usize>(cx);
8736 let head = selection.head();
8737
8738 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8739 let head_anchor = multi_buffer_snapshot.anchor_at(
8740 head,
8741 if head < selection.tail() {
8742 Bias::Right
8743 } else {
8744 Bias::Left
8745 },
8746 );
8747
8748 match self
8749 .find_all_references_task_sources
8750 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8751 {
8752 Ok(_) => {
8753 log::info!(
8754 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8755 );
8756 return None;
8757 }
8758 Err(i) => {
8759 self.find_all_references_task_sources.insert(i, head_anchor);
8760 }
8761 }
8762
8763 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8764 let replica_id = self.replica_id(cx);
8765 let workspace = self.workspace()?;
8766 let project = workspace.read(cx).project().clone();
8767 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8768 Some(cx.spawn(|editor, mut cx| async move {
8769 let _cleanup = defer({
8770 let mut cx = cx.clone();
8771 move || {
8772 let _ = editor.update(&mut cx, |editor, _| {
8773 if let Ok(i) =
8774 editor
8775 .find_all_references_task_sources
8776 .binary_search_by(|anchor| {
8777 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8778 })
8779 {
8780 editor.find_all_references_task_sources.remove(i);
8781 }
8782 });
8783 }
8784 });
8785
8786 let locations = references.await?;
8787 if locations.is_empty() {
8788 return anyhow::Ok(());
8789 }
8790
8791 workspace.update(&mut cx, |workspace, cx| {
8792 let title = locations
8793 .first()
8794 .as_ref()
8795 .map(|location| {
8796 let buffer = location.buffer.read(cx);
8797 format!(
8798 "References to `{}`",
8799 buffer
8800 .text_for_range(location.range.clone())
8801 .collect::<String>()
8802 )
8803 })
8804 .unwrap();
8805 Self::open_locations_in_multibuffer(
8806 workspace, locations, replica_id, title, false, cx,
8807 );
8808 })
8809 }))
8810 }
8811
8812 /// Opens a multibuffer with the given project locations in it
8813 pub fn open_locations_in_multibuffer(
8814 workspace: &mut Workspace,
8815 mut locations: Vec<Location>,
8816 replica_id: ReplicaId,
8817 title: String,
8818 split: bool,
8819 cx: &mut ViewContext<Workspace>,
8820 ) {
8821 // If there are multiple definitions, open them in a multibuffer
8822 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8823 let mut locations = locations.into_iter().peekable();
8824 let mut ranges_to_highlight = Vec::new();
8825 let capability = workspace.project().read(cx).capability();
8826
8827 let excerpt_buffer = cx.new_model(|cx| {
8828 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8829 while let Some(location) = locations.next() {
8830 let buffer = location.buffer.read(cx);
8831 let mut ranges_for_buffer = Vec::new();
8832 let range = location.range.to_offset(buffer);
8833 ranges_for_buffer.push(range.clone());
8834
8835 while let Some(next_location) = locations.peek() {
8836 if next_location.buffer == location.buffer {
8837 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8838 locations.next();
8839 } else {
8840 break;
8841 }
8842 }
8843
8844 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8845 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8846 location.buffer.clone(),
8847 ranges_for_buffer,
8848 DEFAULT_MULTIBUFFER_CONTEXT,
8849 cx,
8850 ))
8851 }
8852
8853 multibuffer.with_title(title)
8854 });
8855
8856 let editor = cx.new_view(|cx| {
8857 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
8858 });
8859 editor.update(cx, |editor, cx| {
8860 editor.highlight_background::<Self>(
8861 &ranges_to_highlight,
8862 |theme| theme.editor_highlighted_line_background,
8863 cx,
8864 );
8865 });
8866
8867 let item = Box::new(editor);
8868 let item_id = item.item_id();
8869
8870 if split {
8871 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8872 } else {
8873 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8874 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8875 pane.close_current_preview_item(cx)
8876 } else {
8877 None
8878 }
8879 });
8880 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8881 }
8882 workspace.active_pane().update(cx, |pane, cx| {
8883 pane.set_preview_item_id(Some(item_id), cx);
8884 });
8885 }
8886
8887 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8888 use language::ToOffset as _;
8889
8890 let project = self.project.clone()?;
8891 let selection = self.selections.newest_anchor().clone();
8892 let (cursor_buffer, cursor_buffer_position) = self
8893 .buffer
8894 .read(cx)
8895 .text_anchor_for_position(selection.head(), cx)?;
8896 let (tail_buffer, cursor_buffer_position_end) = self
8897 .buffer
8898 .read(cx)
8899 .text_anchor_for_position(selection.tail(), cx)?;
8900 if tail_buffer != cursor_buffer {
8901 return None;
8902 }
8903
8904 let snapshot = cursor_buffer.read(cx).snapshot();
8905 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8906 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8907 let prepare_rename = project.update(cx, |project, cx| {
8908 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8909 });
8910 drop(snapshot);
8911
8912 Some(cx.spawn(|this, mut cx| async move {
8913 let rename_range = if let Some(range) = prepare_rename.await? {
8914 Some(range)
8915 } else {
8916 this.update(&mut cx, |this, cx| {
8917 let buffer = this.buffer.read(cx).snapshot(cx);
8918 let mut buffer_highlights = this
8919 .document_highlights_for_position(selection.head(), &buffer)
8920 .filter(|highlight| {
8921 highlight.start.excerpt_id == selection.head().excerpt_id
8922 && highlight.end.excerpt_id == selection.head().excerpt_id
8923 });
8924 buffer_highlights
8925 .next()
8926 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8927 })?
8928 };
8929 if let Some(rename_range) = rename_range {
8930 this.update(&mut cx, |this, cx| {
8931 let snapshot = cursor_buffer.read(cx).snapshot();
8932 let rename_buffer_range = rename_range.to_offset(&snapshot);
8933 let cursor_offset_in_rename_range =
8934 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8935 let cursor_offset_in_rename_range_end =
8936 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8937
8938 this.take_rename(false, cx);
8939 let buffer = this.buffer.read(cx).read(cx);
8940 let cursor_offset = selection.head().to_offset(&buffer);
8941 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8942 let rename_end = rename_start + rename_buffer_range.len();
8943 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8944 let mut old_highlight_id = None;
8945 let old_name: Arc<str> = buffer
8946 .chunks(rename_start..rename_end, true)
8947 .map(|chunk| {
8948 if old_highlight_id.is_none() {
8949 old_highlight_id = chunk.syntax_highlight_id;
8950 }
8951 chunk.text
8952 })
8953 .collect::<String>()
8954 .into();
8955
8956 drop(buffer);
8957
8958 // Position the selection in the rename editor so that it matches the current selection.
8959 this.show_local_selections = false;
8960 let rename_editor = cx.new_view(|cx| {
8961 let mut editor = Editor::single_line(cx);
8962 editor.buffer.update(cx, |buffer, cx| {
8963 buffer.edit([(0..0, old_name.clone())], None, cx)
8964 });
8965 let rename_selection_range = match cursor_offset_in_rename_range
8966 .cmp(&cursor_offset_in_rename_range_end)
8967 {
8968 Ordering::Equal => {
8969 editor.select_all(&SelectAll, cx);
8970 return editor;
8971 }
8972 Ordering::Less => {
8973 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8974 }
8975 Ordering::Greater => {
8976 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8977 }
8978 };
8979 if rename_selection_range.end > old_name.len() {
8980 editor.select_all(&SelectAll, cx);
8981 } else {
8982 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8983 s.select_ranges([rename_selection_range]);
8984 });
8985 }
8986 editor
8987 });
8988
8989 let write_highlights =
8990 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8991 let read_highlights =
8992 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8993 let ranges = write_highlights
8994 .iter()
8995 .flat_map(|(_, ranges)| ranges.iter())
8996 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8997 .cloned()
8998 .collect();
8999
9000 this.highlight_text::<Rename>(
9001 ranges,
9002 HighlightStyle {
9003 fade_out: Some(0.6),
9004 ..Default::default()
9005 },
9006 cx,
9007 );
9008 let rename_focus_handle = rename_editor.focus_handle(cx);
9009 cx.focus(&rename_focus_handle);
9010 let block_id = this.insert_blocks(
9011 [BlockProperties {
9012 style: BlockStyle::Flex,
9013 position: range.start,
9014 height: 1,
9015 render: Box::new({
9016 let rename_editor = rename_editor.clone();
9017 move |cx: &mut BlockContext| {
9018 let mut text_style = cx.editor_style.text.clone();
9019 if let Some(highlight_style) = old_highlight_id
9020 .and_then(|h| h.style(&cx.editor_style.syntax))
9021 {
9022 text_style = text_style.highlight(highlight_style);
9023 }
9024 div()
9025 .pl(cx.anchor_x)
9026 .child(EditorElement::new(
9027 &rename_editor,
9028 EditorStyle {
9029 background: cx.theme().system().transparent,
9030 local_player: cx.editor_style.local_player,
9031 text: text_style,
9032 scrollbar_width: cx.editor_style.scrollbar_width,
9033 syntax: cx.editor_style.syntax.clone(),
9034 status: cx.editor_style.status.clone(),
9035 inlay_hints_style: HighlightStyle {
9036 color: Some(cx.theme().status().hint),
9037 font_weight: Some(FontWeight::BOLD),
9038 ..HighlightStyle::default()
9039 },
9040 suggestions_style: HighlightStyle {
9041 color: Some(cx.theme().status().predictive),
9042 ..HighlightStyle::default()
9043 },
9044 },
9045 ))
9046 .into_any_element()
9047 }
9048 }),
9049 disposition: BlockDisposition::Below,
9050 }],
9051 Some(Autoscroll::fit()),
9052 cx,
9053 )[0];
9054 this.pending_rename = Some(RenameState {
9055 range,
9056 old_name,
9057 editor: rename_editor,
9058 block_id,
9059 });
9060 })?;
9061 }
9062
9063 Ok(())
9064 }))
9065 }
9066
9067 pub fn confirm_rename(
9068 &mut self,
9069 _: &ConfirmRename,
9070 cx: &mut ViewContext<Self>,
9071 ) -> Option<Task<Result<()>>> {
9072 let rename = self.take_rename(false, cx)?;
9073 let workspace = self.workspace()?;
9074 let (start_buffer, start) = self
9075 .buffer
9076 .read(cx)
9077 .text_anchor_for_position(rename.range.start, cx)?;
9078 let (end_buffer, end) = self
9079 .buffer
9080 .read(cx)
9081 .text_anchor_for_position(rename.range.end, cx)?;
9082 if start_buffer != end_buffer {
9083 return None;
9084 }
9085
9086 let buffer = start_buffer;
9087 let range = start..end;
9088 let old_name = rename.old_name;
9089 let new_name = rename.editor.read(cx).text(cx);
9090
9091 let rename = workspace
9092 .read(cx)
9093 .project()
9094 .clone()
9095 .update(cx, |project, cx| {
9096 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9097 });
9098 let workspace = workspace.downgrade();
9099
9100 Some(cx.spawn(|editor, mut cx| async move {
9101 let project_transaction = rename.await?;
9102 Self::open_project_transaction(
9103 &editor,
9104 workspace,
9105 project_transaction,
9106 format!("Rename: {} → {}", old_name, new_name),
9107 cx.clone(),
9108 )
9109 .await?;
9110
9111 editor.update(&mut cx, |editor, cx| {
9112 editor.refresh_document_highlights(cx);
9113 })?;
9114 Ok(())
9115 }))
9116 }
9117
9118 fn take_rename(
9119 &mut self,
9120 moving_cursor: bool,
9121 cx: &mut ViewContext<Self>,
9122 ) -> Option<RenameState> {
9123 let rename = self.pending_rename.take()?;
9124 if rename.editor.focus_handle(cx).is_focused(cx) {
9125 cx.focus(&self.focus_handle);
9126 }
9127
9128 self.remove_blocks(
9129 [rename.block_id].into_iter().collect(),
9130 Some(Autoscroll::fit()),
9131 cx,
9132 );
9133 self.clear_highlights::<Rename>(cx);
9134 self.show_local_selections = true;
9135
9136 if moving_cursor {
9137 let rename_editor = rename.editor.read(cx);
9138 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9139
9140 // Update the selection to match the position of the selection inside
9141 // the rename editor.
9142 let snapshot = self.buffer.read(cx).read(cx);
9143 let rename_range = rename.range.to_offset(&snapshot);
9144 let cursor_in_editor = snapshot
9145 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9146 .min(rename_range.end);
9147 drop(snapshot);
9148
9149 self.change_selections(None, cx, |s| {
9150 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9151 });
9152 } else {
9153 self.refresh_document_highlights(cx);
9154 }
9155
9156 Some(rename)
9157 }
9158
9159 pub fn pending_rename(&self) -> Option<&RenameState> {
9160 self.pending_rename.as_ref()
9161 }
9162
9163 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9164 let project = match &self.project {
9165 Some(project) => project.clone(),
9166 None => return None,
9167 };
9168
9169 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9170 }
9171
9172 fn perform_format(
9173 &mut self,
9174 project: Model<Project>,
9175 trigger: FormatTrigger,
9176 cx: &mut ViewContext<Self>,
9177 ) -> Task<Result<()>> {
9178 let buffer = self.buffer().clone();
9179 let mut buffers = buffer.read(cx).all_buffers();
9180 if trigger == FormatTrigger::Save {
9181 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9182 }
9183
9184 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9185 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9186
9187 cx.spawn(|_, mut cx| async move {
9188 let transaction = futures::select_biased! {
9189 () = timeout => {
9190 log::warn!("timed out waiting for formatting");
9191 None
9192 }
9193 transaction = format.log_err().fuse() => transaction,
9194 };
9195
9196 buffer
9197 .update(&mut cx, |buffer, cx| {
9198 if let Some(transaction) = transaction {
9199 if !buffer.is_singleton() {
9200 buffer.push_transaction(&transaction.0, cx);
9201 }
9202 }
9203
9204 cx.notify();
9205 })
9206 .ok();
9207
9208 Ok(())
9209 })
9210 }
9211
9212 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9213 if let Some(project) = self.project.clone() {
9214 self.buffer.update(cx, |multi_buffer, cx| {
9215 project.update(cx, |project, cx| {
9216 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9217 });
9218 })
9219 }
9220 }
9221
9222 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9223 cx.show_character_palette();
9224 }
9225
9226 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9227 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9228 let buffer = self.buffer.read(cx).snapshot(cx);
9229 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9230 let is_valid = buffer
9231 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9232 .any(|entry| {
9233 entry.diagnostic.is_primary
9234 && !entry.range.is_empty()
9235 && entry.range.start == primary_range_start
9236 && entry.diagnostic.message == active_diagnostics.primary_message
9237 });
9238
9239 if is_valid != active_diagnostics.is_valid {
9240 active_diagnostics.is_valid = is_valid;
9241 let mut new_styles = HashMap::default();
9242 for (block_id, diagnostic) in &active_diagnostics.blocks {
9243 new_styles.insert(
9244 *block_id,
9245 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9246 );
9247 }
9248 self.display_map
9249 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9250 }
9251 }
9252 }
9253
9254 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9255 self.dismiss_diagnostics(cx);
9256 let snapshot = self.snapshot(cx);
9257 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9258 let buffer = self.buffer.read(cx).snapshot(cx);
9259
9260 let mut primary_range = None;
9261 let mut primary_message = None;
9262 let mut group_end = Point::zero();
9263 let diagnostic_group = buffer
9264 .diagnostic_group::<MultiBufferPoint>(group_id)
9265 .filter_map(|entry| {
9266 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9267 && (entry.range.start.row == entry.range.end.row
9268 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9269 {
9270 return None;
9271 }
9272 if entry.range.end > group_end {
9273 group_end = entry.range.end;
9274 }
9275 if entry.diagnostic.is_primary {
9276 primary_range = Some(entry.range.clone());
9277 primary_message = Some(entry.diagnostic.message.clone());
9278 }
9279 Some(entry)
9280 })
9281 .collect::<Vec<_>>();
9282 let primary_range = primary_range?;
9283 let primary_message = primary_message?;
9284 let primary_range =
9285 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9286
9287 let blocks = display_map
9288 .insert_blocks(
9289 diagnostic_group.iter().map(|entry| {
9290 let diagnostic = entry.diagnostic.clone();
9291 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9292 BlockProperties {
9293 style: BlockStyle::Fixed,
9294 position: buffer.anchor_after(entry.range.start),
9295 height: message_height,
9296 render: diagnostic_block_renderer(diagnostic, true),
9297 disposition: BlockDisposition::Below,
9298 }
9299 }),
9300 cx,
9301 )
9302 .into_iter()
9303 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9304 .collect();
9305
9306 Some(ActiveDiagnosticGroup {
9307 primary_range,
9308 primary_message,
9309 group_id,
9310 blocks,
9311 is_valid: true,
9312 })
9313 });
9314 self.active_diagnostics.is_some()
9315 }
9316
9317 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9318 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9319 self.display_map.update(cx, |display_map, cx| {
9320 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9321 });
9322 cx.notify();
9323 }
9324 }
9325
9326 pub fn set_selections_from_remote(
9327 &mut self,
9328 selections: Vec<Selection<Anchor>>,
9329 pending_selection: Option<Selection<Anchor>>,
9330 cx: &mut ViewContext<Self>,
9331 ) {
9332 let old_cursor_position = self.selections.newest_anchor().head();
9333 self.selections.change_with(cx, |s| {
9334 s.select_anchors(selections);
9335 if let Some(pending_selection) = pending_selection {
9336 s.set_pending(pending_selection, SelectMode::Character);
9337 } else {
9338 s.clear_pending();
9339 }
9340 });
9341 self.selections_did_change(false, &old_cursor_position, true, cx);
9342 }
9343
9344 fn push_to_selection_history(&mut self) {
9345 self.selection_history.push(SelectionHistoryEntry {
9346 selections: self.selections.disjoint_anchors(),
9347 select_next_state: self.select_next_state.clone(),
9348 select_prev_state: self.select_prev_state.clone(),
9349 add_selections_state: self.add_selections_state.clone(),
9350 });
9351 }
9352
9353 pub fn transact(
9354 &mut self,
9355 cx: &mut ViewContext<Self>,
9356 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9357 ) -> Option<TransactionId> {
9358 self.start_transaction_at(Instant::now(), cx);
9359 update(self, cx);
9360 self.end_transaction_at(Instant::now(), cx)
9361 }
9362
9363 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9364 self.end_selection(cx);
9365 if let Some(tx_id) = self
9366 .buffer
9367 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9368 {
9369 self.selection_history
9370 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9371 cx.emit(EditorEvent::TransactionBegun {
9372 transaction_id: tx_id,
9373 })
9374 }
9375 }
9376
9377 fn end_transaction_at(
9378 &mut self,
9379 now: Instant,
9380 cx: &mut ViewContext<Self>,
9381 ) -> Option<TransactionId> {
9382 if let Some(tx_id) = self
9383 .buffer
9384 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9385 {
9386 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9387 *end_selections = Some(self.selections.disjoint_anchors());
9388 } else {
9389 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9390 }
9391
9392 cx.emit(EditorEvent::Edited);
9393 Some(tx_id)
9394 } else {
9395 None
9396 }
9397 }
9398
9399 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9400 let mut fold_ranges = Vec::new();
9401
9402 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9403
9404 let selections = self.selections.all_adjusted(cx);
9405 for selection in selections {
9406 let range = selection.range().sorted();
9407 let buffer_start_row = range.start.row;
9408
9409 for row in (0..=range.end.row).rev() {
9410 if let Some((foldable_range, fold_text)) =
9411 display_map.foldable_range(MultiBufferRow(row))
9412 {
9413 if foldable_range.end.row >= buffer_start_row {
9414 fold_ranges.push((foldable_range, fold_text));
9415 if row <= range.start.row {
9416 break;
9417 }
9418 }
9419 }
9420 }
9421 }
9422
9423 self.fold_ranges(fold_ranges, true, cx);
9424 }
9425
9426 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9427 let buffer_row = fold_at.buffer_row;
9428 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9429
9430 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9431 let autoscroll = self
9432 .selections
9433 .all::<Point>(cx)
9434 .iter()
9435 .any(|selection| fold_range.overlaps(&selection.range()));
9436
9437 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9438 }
9439 }
9440
9441 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9442 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9443 let buffer = &display_map.buffer_snapshot;
9444 let selections = self.selections.all::<Point>(cx);
9445 let ranges = selections
9446 .iter()
9447 .map(|s| {
9448 let range = s.display_range(&display_map).sorted();
9449 let mut start = range.start.to_point(&display_map);
9450 let mut end = range.end.to_point(&display_map);
9451 start.column = 0;
9452 end.column = buffer.line_len(MultiBufferRow(end.row));
9453 start..end
9454 })
9455 .collect::<Vec<_>>();
9456
9457 self.unfold_ranges(ranges, true, true, cx);
9458 }
9459
9460 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9461 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9462
9463 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9464 ..Point::new(
9465 unfold_at.buffer_row.0,
9466 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9467 );
9468
9469 let autoscroll = self
9470 .selections
9471 .all::<Point>(cx)
9472 .iter()
9473 .any(|selection| selection.range().overlaps(&intersection_range));
9474
9475 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9476 }
9477
9478 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9479 let selections = self.selections.all::<Point>(cx);
9480 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9481 let line_mode = self.selections.line_mode;
9482 let ranges = selections.into_iter().map(|s| {
9483 if line_mode {
9484 let start = Point::new(s.start.row, 0);
9485 let end = Point::new(
9486 s.end.row,
9487 display_map
9488 .buffer_snapshot
9489 .line_len(MultiBufferRow(s.end.row)),
9490 );
9491 (start..end, display_map.fold_placeholder.clone())
9492 } else {
9493 (s.start..s.end, display_map.fold_placeholder.clone())
9494 }
9495 });
9496 self.fold_ranges(ranges, true, cx);
9497 }
9498
9499 pub fn fold_ranges<T: ToOffset + Clone>(
9500 &mut self,
9501 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9502 auto_scroll: bool,
9503 cx: &mut ViewContext<Self>,
9504 ) {
9505 let mut fold_ranges = Vec::new();
9506 let mut buffers_affected = HashMap::default();
9507 let multi_buffer = self.buffer().read(cx);
9508 for (fold_range, fold_text) in ranges {
9509 if let Some((_, buffer, _)) =
9510 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9511 {
9512 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9513 };
9514 fold_ranges.push((fold_range, fold_text));
9515 }
9516
9517 let mut ranges = fold_ranges.into_iter().peekable();
9518 if ranges.peek().is_some() {
9519 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9520
9521 if auto_scroll {
9522 self.request_autoscroll(Autoscroll::fit(), cx);
9523 }
9524
9525 for buffer in buffers_affected.into_values() {
9526 self.sync_expanded_diff_hunks(buffer, cx);
9527 }
9528
9529 cx.notify();
9530
9531 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9532 // Clear diagnostics block when folding a range that contains it.
9533 let snapshot = self.snapshot(cx);
9534 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9535 drop(snapshot);
9536 self.active_diagnostics = Some(active_diagnostics);
9537 self.dismiss_diagnostics(cx);
9538 } else {
9539 self.active_diagnostics = Some(active_diagnostics);
9540 }
9541 }
9542
9543 self.scrollbar_marker_state.dirty = true;
9544 }
9545 }
9546
9547 pub fn unfold_ranges<T: ToOffset + Clone>(
9548 &mut self,
9549 ranges: impl IntoIterator<Item = Range<T>>,
9550 inclusive: bool,
9551 auto_scroll: bool,
9552 cx: &mut ViewContext<Self>,
9553 ) {
9554 let mut unfold_ranges = Vec::new();
9555 let mut buffers_affected = HashMap::default();
9556 let multi_buffer = self.buffer().read(cx);
9557 for range in ranges {
9558 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9559 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9560 };
9561 unfold_ranges.push(range);
9562 }
9563
9564 let mut ranges = unfold_ranges.into_iter().peekable();
9565 if ranges.peek().is_some() {
9566 self.display_map
9567 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9568 if auto_scroll {
9569 self.request_autoscroll(Autoscroll::fit(), cx);
9570 }
9571
9572 for buffer in buffers_affected.into_values() {
9573 self.sync_expanded_diff_hunks(buffer, cx);
9574 }
9575
9576 cx.notify();
9577 self.scrollbar_marker_state.dirty = true;
9578 self.active_indent_guides_state.dirty = true;
9579 }
9580 }
9581
9582 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9583 if hovered != self.gutter_hovered {
9584 self.gutter_hovered = hovered;
9585 cx.notify();
9586 }
9587 }
9588
9589 pub fn insert_blocks(
9590 &mut self,
9591 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9592 autoscroll: Option<Autoscroll>,
9593 cx: &mut ViewContext<Self>,
9594 ) -> Vec<BlockId> {
9595 let blocks = self
9596 .display_map
9597 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9598 if let Some(autoscroll) = autoscroll {
9599 self.request_autoscroll(autoscroll, cx);
9600 }
9601 blocks
9602 }
9603
9604 pub fn replace_blocks(
9605 &mut self,
9606 blocks: HashMap<BlockId, RenderBlock>,
9607 autoscroll: Option<Autoscroll>,
9608 cx: &mut ViewContext<Self>,
9609 ) {
9610 self.display_map
9611 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9612 if let Some(autoscroll) = autoscroll {
9613 self.request_autoscroll(autoscroll, cx);
9614 }
9615 }
9616
9617 pub fn remove_blocks(
9618 &mut self,
9619 block_ids: HashSet<BlockId>,
9620 autoscroll: Option<Autoscroll>,
9621 cx: &mut ViewContext<Self>,
9622 ) {
9623 self.display_map.update(cx, |display_map, cx| {
9624 display_map.remove_blocks(block_ids, cx)
9625 });
9626 if let Some(autoscroll) = autoscroll {
9627 self.request_autoscroll(autoscroll, cx);
9628 }
9629 }
9630
9631 pub fn insert_flaps(
9632 &mut self,
9633 flaps: impl IntoIterator<Item = Flap>,
9634 cx: &mut ViewContext<Self>,
9635 ) -> Vec<FlapId> {
9636 self.display_map
9637 .update(cx, |map, cx| map.insert_flaps(flaps, cx))
9638 }
9639
9640 pub fn remove_flaps(
9641 &mut self,
9642 ids: impl IntoIterator<Item = FlapId>,
9643 cx: &mut ViewContext<Self>,
9644 ) {
9645 self.display_map
9646 .update(cx, |map, cx| map.remove_flaps(ids, cx));
9647 }
9648
9649 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9650 self.display_map
9651 .update(cx, |map, cx| map.snapshot(cx))
9652 .longest_row()
9653 }
9654
9655 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9656 self.display_map
9657 .update(cx, |map, cx| map.snapshot(cx))
9658 .max_point()
9659 }
9660
9661 pub fn text(&self, cx: &AppContext) -> String {
9662 self.buffer.read(cx).read(cx).text()
9663 }
9664
9665 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9666 let text = self.text(cx);
9667 let text = text.trim();
9668
9669 if text.is_empty() {
9670 return None;
9671 }
9672
9673 Some(text.to_string())
9674 }
9675
9676 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9677 self.transact(cx, |this, cx| {
9678 this.buffer
9679 .read(cx)
9680 .as_singleton()
9681 .expect("you can only call set_text on editors for singleton buffers")
9682 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9683 });
9684 }
9685
9686 pub fn display_text(&self, cx: &mut AppContext) -> String {
9687 self.display_map
9688 .update(cx, |map, cx| map.snapshot(cx))
9689 .text()
9690 }
9691
9692 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9693 let mut wrap_guides = smallvec::smallvec![];
9694
9695 if self.show_wrap_guides == Some(false) {
9696 return wrap_guides;
9697 }
9698
9699 let settings = self.buffer.read(cx).settings_at(0, cx);
9700 if settings.show_wrap_guides {
9701 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9702 wrap_guides.push((soft_wrap as usize, true));
9703 }
9704 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9705 }
9706
9707 wrap_guides
9708 }
9709
9710 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9711 let settings = self.buffer.read(cx).settings_at(0, cx);
9712 let mode = self
9713 .soft_wrap_mode_override
9714 .unwrap_or_else(|| settings.soft_wrap);
9715 match mode {
9716 language_settings::SoftWrap::None => SoftWrap::None,
9717 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9718 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9719 language_settings::SoftWrap::PreferredLineLength => {
9720 SoftWrap::Column(settings.preferred_line_length)
9721 }
9722 }
9723 }
9724
9725 pub fn set_soft_wrap_mode(
9726 &mut self,
9727 mode: language_settings::SoftWrap,
9728 cx: &mut ViewContext<Self>,
9729 ) {
9730 self.soft_wrap_mode_override = Some(mode);
9731 cx.notify();
9732 }
9733
9734 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9735 let rem_size = cx.rem_size();
9736 self.display_map.update(cx, |map, cx| {
9737 map.set_font(
9738 style.text.font(),
9739 style.text.font_size.to_pixels(rem_size),
9740 cx,
9741 )
9742 });
9743 self.style = Some(style);
9744 }
9745
9746 pub fn style(&self) -> Option<&EditorStyle> {
9747 self.style.as_ref()
9748 }
9749
9750 // Called by the element. This method is not designed to be called outside of the editor
9751 // element's layout code because it does not notify when rewrapping is computed synchronously.
9752 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9753 self.display_map
9754 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9755 }
9756
9757 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9758 if self.soft_wrap_mode_override.is_some() {
9759 self.soft_wrap_mode_override.take();
9760 } else {
9761 let soft_wrap = match self.soft_wrap_mode(cx) {
9762 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9763 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9764 language_settings::SoftWrap::PreferLine
9765 }
9766 };
9767 self.soft_wrap_mode_override = Some(soft_wrap);
9768 }
9769 cx.notify();
9770 }
9771
9772 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
9773 let currently_enabled = self.should_show_indent_guides(cx);
9774 self.show_indent_guides = Some(!currently_enabled);
9775 cx.notify();
9776 }
9777
9778 fn should_show_indent_guides(&self, cx: &mut ViewContext<Self>) -> bool {
9779 self.show_indent_guides.unwrap_or_else(|| {
9780 self.buffer
9781 .read(cx)
9782 .settings_at(0, cx)
9783 .indent_guides
9784 .enabled
9785 })
9786 }
9787
9788 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9789 let mut editor_settings = EditorSettings::get_global(cx).clone();
9790 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9791 EditorSettings::override_global(editor_settings, cx);
9792 }
9793
9794 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9795 self.show_gutter = show_gutter;
9796 cx.notify();
9797 }
9798
9799 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
9800 self.show_line_numbers = Some(show_line_numbers);
9801 cx.notify();
9802 }
9803
9804 pub fn set_show_git_diff_gutter(
9805 &mut self,
9806 show_git_diff_gutter: bool,
9807 cx: &mut ViewContext<Self>,
9808 ) {
9809 self.show_git_diff_gutter = Some(show_git_diff_gutter);
9810 cx.notify();
9811 }
9812
9813 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
9814 self.show_code_actions = Some(show_code_actions);
9815 cx.notify();
9816 }
9817
9818 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
9819 self.show_wrap_guides = Some(show_wrap_guides);
9820 cx.notify();
9821 }
9822
9823 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
9824 self.show_indent_guides = Some(show_indent_guides);
9825 cx.notify();
9826 }
9827
9828 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9829 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9830 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9831 cx.reveal_path(&file.abs_path(cx));
9832 }
9833 }
9834 }
9835
9836 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9837 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9838 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9839 if let Some(path) = file.abs_path(cx).to_str() {
9840 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9841 }
9842 }
9843 }
9844 }
9845
9846 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9847 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9848 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9849 if let Some(path) = file.path().to_str() {
9850 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9851 }
9852 }
9853 }
9854 }
9855
9856 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9857 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9858
9859 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9860 self.start_git_blame(true, cx);
9861 }
9862
9863 cx.notify();
9864 }
9865
9866 pub fn toggle_git_blame_inline(
9867 &mut self,
9868 _: &ToggleGitBlameInline,
9869 cx: &mut ViewContext<Self>,
9870 ) {
9871 self.toggle_git_blame_inline_internal(true, cx);
9872 cx.notify();
9873 }
9874
9875 pub fn git_blame_inline_enabled(&self) -> bool {
9876 self.git_blame_inline_enabled
9877 }
9878
9879 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9880 if let Some(project) = self.project.as_ref() {
9881 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9882 return;
9883 };
9884
9885 if buffer.read(cx).file().is_none() {
9886 return;
9887 }
9888
9889 let focused = self.focus_handle(cx).contains_focused(cx);
9890
9891 let project = project.clone();
9892 let blame =
9893 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9894 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9895 self.blame = Some(blame);
9896 }
9897 }
9898
9899 fn toggle_git_blame_inline_internal(
9900 &mut self,
9901 user_triggered: bool,
9902 cx: &mut ViewContext<Self>,
9903 ) {
9904 if self.git_blame_inline_enabled {
9905 self.git_blame_inline_enabled = false;
9906 self.show_git_blame_inline = false;
9907 self.show_git_blame_inline_delay_task.take();
9908 } else {
9909 self.git_blame_inline_enabled = true;
9910 self.start_git_blame_inline(user_triggered, cx);
9911 }
9912
9913 cx.notify();
9914 }
9915
9916 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9917 self.start_git_blame(user_triggered, cx);
9918
9919 if ProjectSettings::get_global(cx)
9920 .git
9921 .inline_blame_delay()
9922 .is_some()
9923 {
9924 self.start_inline_blame_timer(cx);
9925 } else {
9926 self.show_git_blame_inline = true
9927 }
9928 }
9929
9930 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9931 self.blame.as_ref()
9932 }
9933
9934 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9935 self.show_git_blame_gutter && self.has_blame_entries(cx)
9936 }
9937
9938 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9939 self.show_git_blame_inline
9940 && self.focus_handle.is_focused(cx)
9941 && !self.newest_selection_head_on_empty_line(cx)
9942 && self.has_blame_entries(cx)
9943 }
9944
9945 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9946 self.blame()
9947 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9948 }
9949
9950 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9951 let cursor_anchor = self.selections.newest_anchor().head();
9952
9953 let snapshot = self.buffer.read(cx).snapshot(cx);
9954 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9955
9956 snapshot.line_len(buffer_row) == 0
9957 }
9958
9959 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9960 let (path, repo) = maybe!({
9961 let project_handle = self.project.as_ref()?.clone();
9962 let project = project_handle.read(cx);
9963 let buffer = self.buffer().read(cx).as_singleton()?;
9964 let path = buffer
9965 .read(cx)
9966 .file()?
9967 .as_local()?
9968 .path()
9969 .to_str()?
9970 .to_string();
9971 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9972 Some((path, repo))
9973 })
9974 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9975
9976 const REMOTE_NAME: &str = "origin";
9977 let origin_url = repo
9978 .lock()
9979 .remote_url(REMOTE_NAME)
9980 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9981 let sha = repo
9982 .lock()
9983 .head_sha()
9984 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9985 let selections = self.selections.all::<Point>(cx);
9986 let selection = selections.iter().peekable().next();
9987
9988 let (provider, remote) =
9989 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9990 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9991
9992 Ok(provider.build_permalink(
9993 remote,
9994 BuildPermalinkParams {
9995 sha: &sha,
9996 path: &path,
9997 selection: selection.map(|selection| {
9998 let range = selection.range();
9999 let start = range.start.row;
10000 let end = range.end.row;
10001 start..end
10002 }),
10003 },
10004 ))
10005 }
10006
10007 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10008 let permalink = self.get_permalink_to_line(cx);
10009
10010 match permalink {
10011 Ok(permalink) => {
10012 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10013 }
10014 Err(err) => {
10015 let message = format!("Failed to copy permalink: {err}");
10016
10017 Err::<(), anyhow::Error>(err).log_err();
10018
10019 if let Some(workspace) = self.workspace() {
10020 workspace.update(cx, |workspace, cx| {
10021 struct CopyPermalinkToLine;
10022
10023 workspace.show_toast(
10024 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10025 cx,
10026 )
10027 })
10028 }
10029 }
10030 }
10031 }
10032
10033 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10034 let permalink = self.get_permalink_to_line(cx);
10035
10036 match permalink {
10037 Ok(permalink) => {
10038 cx.open_url(permalink.as_ref());
10039 }
10040 Err(err) => {
10041 let message = format!("Failed to open permalink: {err}");
10042
10043 Err::<(), anyhow::Error>(err).log_err();
10044
10045 if let Some(workspace) = self.workspace() {
10046 workspace.update(cx, |workspace, cx| {
10047 struct OpenPermalinkToLine;
10048
10049 workspace.show_toast(
10050 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10051 cx,
10052 )
10053 })
10054 }
10055 }
10056 }
10057 }
10058
10059 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10060 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10061 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10062 pub fn highlight_rows<T: 'static>(
10063 &mut self,
10064 rows: RangeInclusive<Anchor>,
10065 color: Option<Hsla>,
10066 should_autoscroll: bool,
10067 cx: &mut ViewContext<Self>,
10068 ) {
10069 let snapshot = self.buffer().read(cx).snapshot(cx);
10070 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10071 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10072 highlight
10073 .range
10074 .start()
10075 .cmp(&rows.start(), &snapshot)
10076 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10077 });
10078 match (color, existing_highlight_index) {
10079 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10080 ix,
10081 RowHighlight {
10082 index: post_inc(&mut self.highlight_order),
10083 range: rows,
10084 should_autoscroll,
10085 color,
10086 },
10087 ),
10088 (None, Ok(i)) => {
10089 row_highlights.remove(i);
10090 }
10091 }
10092 }
10093
10094 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10095 pub fn clear_row_highlights<T: 'static>(&mut self) {
10096 self.highlighted_rows.remove(&TypeId::of::<T>());
10097 }
10098
10099 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10100 pub fn highlighted_rows<T: 'static>(
10101 &self,
10102 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10103 Some(
10104 self.highlighted_rows
10105 .get(&TypeId::of::<T>())?
10106 .iter()
10107 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10108 )
10109 }
10110
10111 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10112 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10113 /// Allows to ignore certain kinds of highlights.
10114 pub fn highlighted_display_rows(
10115 &mut self,
10116 cx: &mut WindowContext,
10117 ) -> BTreeMap<DisplayRow, Hsla> {
10118 let snapshot = self.snapshot(cx);
10119 let mut used_highlight_orders = HashMap::default();
10120 self.highlighted_rows
10121 .iter()
10122 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10123 .fold(
10124 BTreeMap::<DisplayRow, Hsla>::new(),
10125 |mut unique_rows, highlight| {
10126 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10127 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10128 for row in start_row.0..=end_row.0 {
10129 let used_index =
10130 used_highlight_orders.entry(row).or_insert(highlight.index);
10131 if highlight.index >= *used_index {
10132 *used_index = highlight.index;
10133 match highlight.color {
10134 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10135 None => unique_rows.remove(&DisplayRow(row)),
10136 };
10137 }
10138 }
10139 unique_rows
10140 },
10141 )
10142 }
10143
10144 pub fn highlighted_display_row_for_autoscroll(
10145 &self,
10146 snapshot: &DisplaySnapshot,
10147 ) -> Option<DisplayRow> {
10148 self.highlighted_rows
10149 .values()
10150 .flat_map(|highlighted_rows| highlighted_rows.iter())
10151 .filter_map(|highlight| {
10152 if highlight.color.is_none() || !highlight.should_autoscroll {
10153 return None;
10154 }
10155 Some(highlight.range.start().to_display_point(&snapshot).row())
10156 })
10157 .min()
10158 }
10159
10160 pub fn set_search_within_ranges(
10161 &mut self,
10162 ranges: &[Range<Anchor>],
10163 cx: &mut ViewContext<Self>,
10164 ) {
10165 self.highlight_background::<SearchWithinRange>(
10166 ranges,
10167 |colors| colors.editor_document_highlight_read_background,
10168 cx,
10169 )
10170 }
10171
10172 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10173 self.clear_background_highlights::<SearchWithinRange>(cx);
10174 }
10175
10176 pub fn highlight_background<T: 'static>(
10177 &mut self,
10178 ranges: &[Range<Anchor>],
10179 color_fetcher: fn(&ThemeColors) -> Hsla,
10180 cx: &mut ViewContext<Self>,
10181 ) {
10182 let snapshot = self.snapshot(cx);
10183 // this is to try and catch a panic sooner
10184 for range in ranges {
10185 snapshot
10186 .buffer_snapshot
10187 .summary_for_anchor::<usize>(&range.start);
10188 snapshot
10189 .buffer_snapshot
10190 .summary_for_anchor::<usize>(&range.end);
10191 }
10192
10193 self.background_highlights
10194 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10195 self.scrollbar_marker_state.dirty = true;
10196 cx.notify();
10197 }
10198
10199 pub fn clear_background_highlights<T: 'static>(
10200 &mut self,
10201 cx: &mut ViewContext<Self>,
10202 ) -> Option<BackgroundHighlight> {
10203 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10204 if !text_highlights.1.is_empty() {
10205 self.scrollbar_marker_state.dirty = true;
10206 cx.notify();
10207 }
10208 Some(text_highlights)
10209 }
10210
10211 #[cfg(feature = "test-support")]
10212 pub fn all_text_background_highlights(
10213 &mut self,
10214 cx: &mut ViewContext<Self>,
10215 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10216 let snapshot = self.snapshot(cx);
10217 let buffer = &snapshot.buffer_snapshot;
10218 let start = buffer.anchor_before(0);
10219 let end = buffer.anchor_after(buffer.len());
10220 let theme = cx.theme().colors();
10221 self.background_highlights_in_range(start..end, &snapshot, theme)
10222 }
10223
10224 fn document_highlights_for_position<'a>(
10225 &'a self,
10226 position: Anchor,
10227 buffer: &'a MultiBufferSnapshot,
10228 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10229 let read_highlights = self
10230 .background_highlights
10231 .get(&TypeId::of::<DocumentHighlightRead>())
10232 .map(|h| &h.1);
10233 let write_highlights = self
10234 .background_highlights
10235 .get(&TypeId::of::<DocumentHighlightWrite>())
10236 .map(|h| &h.1);
10237 let left_position = position.bias_left(buffer);
10238 let right_position = position.bias_right(buffer);
10239 read_highlights
10240 .into_iter()
10241 .chain(write_highlights)
10242 .flat_map(move |ranges| {
10243 let start_ix = match ranges.binary_search_by(|probe| {
10244 let cmp = probe.end.cmp(&left_position, buffer);
10245 if cmp.is_ge() {
10246 Ordering::Greater
10247 } else {
10248 Ordering::Less
10249 }
10250 }) {
10251 Ok(i) | Err(i) => i,
10252 };
10253
10254 ranges[start_ix..]
10255 .iter()
10256 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10257 })
10258 }
10259
10260 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10261 self.background_highlights
10262 .get(&TypeId::of::<T>())
10263 .map_or(false, |(_, highlights)| !highlights.is_empty())
10264 }
10265
10266 pub fn background_highlights_in_range(
10267 &self,
10268 search_range: Range<Anchor>,
10269 display_snapshot: &DisplaySnapshot,
10270 theme: &ThemeColors,
10271 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10272 let mut results = Vec::new();
10273 for (color_fetcher, ranges) in self.background_highlights.values() {
10274 let color = color_fetcher(theme);
10275 let start_ix = match ranges.binary_search_by(|probe| {
10276 let cmp = probe
10277 .end
10278 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10279 if cmp.is_gt() {
10280 Ordering::Greater
10281 } else {
10282 Ordering::Less
10283 }
10284 }) {
10285 Ok(i) | Err(i) => i,
10286 };
10287 for range in &ranges[start_ix..] {
10288 if range
10289 .start
10290 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10291 .is_ge()
10292 {
10293 break;
10294 }
10295
10296 let start = range.start.to_display_point(&display_snapshot);
10297 let end = range.end.to_display_point(&display_snapshot);
10298 results.push((start..end, color))
10299 }
10300 }
10301 results
10302 }
10303
10304 pub fn background_highlight_row_ranges<T: 'static>(
10305 &self,
10306 search_range: Range<Anchor>,
10307 display_snapshot: &DisplaySnapshot,
10308 count: usize,
10309 ) -> Vec<RangeInclusive<DisplayPoint>> {
10310 let mut results = Vec::new();
10311 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10312 return vec![];
10313 };
10314
10315 let start_ix = match ranges.binary_search_by(|probe| {
10316 let cmp = probe
10317 .end
10318 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10319 if cmp.is_gt() {
10320 Ordering::Greater
10321 } else {
10322 Ordering::Less
10323 }
10324 }) {
10325 Ok(i) | Err(i) => i,
10326 };
10327 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10328 if let (Some(start_display), Some(end_display)) = (start, end) {
10329 results.push(
10330 start_display.to_display_point(display_snapshot)
10331 ..=end_display.to_display_point(display_snapshot),
10332 );
10333 }
10334 };
10335 let mut start_row: Option<Point> = None;
10336 let mut end_row: Option<Point> = None;
10337 if ranges.len() > count {
10338 return Vec::new();
10339 }
10340 for range in &ranges[start_ix..] {
10341 if range
10342 .start
10343 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10344 .is_ge()
10345 {
10346 break;
10347 }
10348 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10349 if let Some(current_row) = &end_row {
10350 if end.row == current_row.row {
10351 continue;
10352 }
10353 }
10354 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10355 if start_row.is_none() {
10356 assert_eq!(end_row, None);
10357 start_row = Some(start);
10358 end_row = Some(end);
10359 continue;
10360 }
10361 if let Some(current_end) = end_row.as_mut() {
10362 if start.row > current_end.row + 1 {
10363 push_region(start_row, end_row);
10364 start_row = Some(start);
10365 end_row = Some(end);
10366 } else {
10367 // Merge two hunks.
10368 *current_end = end;
10369 }
10370 } else {
10371 unreachable!();
10372 }
10373 }
10374 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10375 push_region(start_row, end_row);
10376 results
10377 }
10378
10379 /// Get the text ranges corresponding to the redaction query
10380 pub fn redacted_ranges(
10381 &self,
10382 search_range: Range<Anchor>,
10383 display_snapshot: &DisplaySnapshot,
10384 cx: &WindowContext,
10385 ) -> Vec<Range<DisplayPoint>> {
10386 display_snapshot
10387 .buffer_snapshot
10388 .redacted_ranges(search_range, |file| {
10389 if let Some(file) = file {
10390 file.is_private()
10391 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10392 } else {
10393 false
10394 }
10395 })
10396 .map(|range| {
10397 range.start.to_display_point(display_snapshot)
10398 ..range.end.to_display_point(display_snapshot)
10399 })
10400 .collect()
10401 }
10402
10403 pub fn highlight_text<T: 'static>(
10404 &mut self,
10405 ranges: Vec<Range<Anchor>>,
10406 style: HighlightStyle,
10407 cx: &mut ViewContext<Self>,
10408 ) {
10409 self.display_map.update(cx, |map, _| {
10410 map.highlight_text(TypeId::of::<T>(), ranges, style)
10411 });
10412 cx.notify();
10413 }
10414
10415 pub(crate) fn highlight_inlays<T: 'static>(
10416 &mut self,
10417 highlights: Vec<InlayHighlight>,
10418 style: HighlightStyle,
10419 cx: &mut ViewContext<Self>,
10420 ) {
10421 self.display_map.update(cx, |map, _| {
10422 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10423 });
10424 cx.notify();
10425 }
10426
10427 pub fn text_highlights<'a, T: 'static>(
10428 &'a self,
10429 cx: &'a AppContext,
10430 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10431 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10432 }
10433
10434 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10435 let cleared = self
10436 .display_map
10437 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10438 if cleared {
10439 cx.notify();
10440 }
10441 }
10442
10443 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10444 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10445 && self.focus_handle.is_focused(cx)
10446 }
10447
10448 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10449 cx.notify();
10450 }
10451
10452 fn on_buffer_event(
10453 &mut self,
10454 multibuffer: Model<MultiBuffer>,
10455 event: &multi_buffer::Event,
10456 cx: &mut ViewContext<Self>,
10457 ) {
10458 match event {
10459 multi_buffer::Event::Edited {
10460 singleton_buffer_edited,
10461 } => {
10462 self.scrollbar_marker_state.dirty = true;
10463 self.active_indent_guides_state.dirty = true;
10464 self.refresh_active_diagnostics(cx);
10465 self.refresh_code_actions(cx);
10466 if self.has_active_inline_completion(cx) {
10467 self.update_visible_inline_completion(cx);
10468 }
10469 cx.emit(EditorEvent::BufferEdited);
10470 cx.emit(SearchEvent::MatchesInvalidated);
10471
10472 if *singleton_buffer_edited {
10473 if let Some(project) = &self.project {
10474 let project = project.read(cx);
10475 let languages_affected = multibuffer
10476 .read(cx)
10477 .all_buffers()
10478 .into_iter()
10479 .filter_map(|buffer| {
10480 let buffer = buffer.read(cx);
10481 let language = buffer.language()?;
10482 if project.is_local()
10483 && project.language_servers_for_buffer(buffer, cx).count() == 0
10484 {
10485 None
10486 } else {
10487 Some(language)
10488 }
10489 })
10490 .cloned()
10491 .collect::<HashSet<_>>();
10492 if !languages_affected.is_empty() {
10493 self.refresh_inlay_hints(
10494 InlayHintRefreshReason::BufferEdited(languages_affected),
10495 cx,
10496 );
10497 }
10498 }
10499 }
10500
10501 let Some(project) = &self.project else { return };
10502 let telemetry = project.read(cx).client().telemetry().clone();
10503 telemetry.log_edit_event("editor");
10504 }
10505 multi_buffer::Event::ExcerptsAdded {
10506 buffer,
10507 predecessor,
10508 excerpts,
10509 } => {
10510 self.tasks_update_task = Some(self.refresh_runnables(cx));
10511 cx.emit(EditorEvent::ExcerptsAdded {
10512 buffer: buffer.clone(),
10513 predecessor: *predecessor,
10514 excerpts: excerpts.clone(),
10515 });
10516 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10517 }
10518 multi_buffer::Event::ExcerptsRemoved { ids } => {
10519 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10520 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10521 }
10522 multi_buffer::Event::Reparsed => {
10523 self.tasks_update_task = Some(self.refresh_runnables(cx));
10524
10525 cx.emit(EditorEvent::Reparsed);
10526 }
10527 multi_buffer::Event::LanguageChanged => {
10528 cx.emit(EditorEvent::Reparsed);
10529 cx.notify();
10530 }
10531 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10532 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10533 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10534 cx.emit(EditorEvent::TitleChanged)
10535 }
10536 multi_buffer::Event::DiffBaseChanged => {
10537 self.scrollbar_marker_state.dirty = true;
10538 cx.emit(EditorEvent::DiffBaseChanged);
10539 cx.notify();
10540 }
10541 multi_buffer::Event::DiffUpdated { buffer } => {
10542 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10543 cx.notify();
10544 }
10545 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10546 multi_buffer::Event::DiagnosticsUpdated => {
10547 self.refresh_active_diagnostics(cx);
10548 self.scrollbar_marker_state.dirty = true;
10549 cx.notify();
10550 }
10551 _ => {}
10552 };
10553 }
10554
10555 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10556 cx.notify();
10557 }
10558
10559 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10560 self.refresh_inline_completion(true, cx);
10561 self.refresh_inlay_hints(
10562 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10563 self.selections.newest_anchor().head(),
10564 &self.buffer.read(cx).snapshot(cx),
10565 cx,
10566 )),
10567 cx,
10568 );
10569 let editor_settings = EditorSettings::get_global(cx);
10570 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10571 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10572 self.current_line_highlight = editor_settings.current_line_highlight;
10573
10574 if self.mode == EditorMode::Full {
10575 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10576 if self.git_blame_inline_enabled != inline_blame_enabled {
10577 self.toggle_git_blame_inline_internal(false, cx);
10578 }
10579 }
10580
10581 cx.notify();
10582 }
10583
10584 pub fn set_searchable(&mut self, searchable: bool) {
10585 self.searchable = searchable;
10586 }
10587
10588 pub fn searchable(&self) -> bool {
10589 self.searchable
10590 }
10591
10592 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10593 self.open_excerpts_common(true, cx)
10594 }
10595
10596 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10597 self.open_excerpts_common(false, cx)
10598 }
10599
10600 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10601 let buffer = self.buffer.read(cx);
10602 if buffer.is_singleton() {
10603 cx.propagate();
10604 return;
10605 }
10606
10607 let Some(workspace) = self.workspace() else {
10608 cx.propagate();
10609 return;
10610 };
10611
10612 let mut new_selections_by_buffer = HashMap::default();
10613 for selection in self.selections.all::<usize>(cx) {
10614 for (buffer, mut range, _) in
10615 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10616 {
10617 if selection.reversed {
10618 mem::swap(&mut range.start, &mut range.end);
10619 }
10620 new_selections_by_buffer
10621 .entry(buffer)
10622 .or_insert(Vec::new())
10623 .push(range)
10624 }
10625 }
10626
10627 // We defer the pane interaction because we ourselves are a workspace item
10628 // and activating a new item causes the pane to call a method on us reentrantly,
10629 // which panics if we're on the stack.
10630 cx.window_context().defer(move |cx| {
10631 workspace.update(cx, |workspace, cx| {
10632 let pane = if split {
10633 workspace.adjacent_pane(cx)
10634 } else {
10635 workspace.active_pane().clone()
10636 };
10637
10638 for (buffer, ranges) in new_selections_by_buffer {
10639 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10640 editor.update(cx, |editor, cx| {
10641 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10642 s.select_ranges(ranges);
10643 });
10644 });
10645 }
10646 })
10647 });
10648 }
10649
10650 fn jump(
10651 &mut self,
10652 path: ProjectPath,
10653 position: Point,
10654 anchor: language::Anchor,
10655 offset_from_top: u32,
10656 cx: &mut ViewContext<Self>,
10657 ) {
10658 let workspace = self.workspace();
10659 cx.spawn(|_, mut cx| async move {
10660 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10661 let editor = workspace.update(&mut cx, |workspace, cx| {
10662 // Reset the preview item id before opening the new item
10663 workspace.active_pane().update(cx, |pane, cx| {
10664 pane.set_preview_item_id(None, cx);
10665 });
10666 workspace.open_path_preview(path, None, true, true, cx)
10667 })?;
10668 let editor = editor
10669 .await?
10670 .downcast::<Editor>()
10671 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10672 .downgrade();
10673 editor.update(&mut cx, |editor, cx| {
10674 let buffer = editor
10675 .buffer()
10676 .read(cx)
10677 .as_singleton()
10678 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10679 let buffer = buffer.read(cx);
10680 let cursor = if buffer.can_resolve(&anchor) {
10681 language::ToPoint::to_point(&anchor, buffer)
10682 } else {
10683 buffer.clip_point(position, Bias::Left)
10684 };
10685
10686 let nav_history = editor.nav_history.take();
10687 editor.change_selections(
10688 Some(Autoscroll::top_relative(offset_from_top as usize)),
10689 cx,
10690 |s| {
10691 s.select_ranges([cursor..cursor]);
10692 },
10693 );
10694 editor.nav_history = nav_history;
10695
10696 anyhow::Ok(())
10697 })??;
10698
10699 anyhow::Ok(())
10700 })
10701 .detach_and_log_err(cx);
10702 }
10703
10704 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10705 let snapshot = self.buffer.read(cx).read(cx);
10706 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10707 Some(
10708 ranges
10709 .iter()
10710 .map(move |range| {
10711 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10712 })
10713 .collect(),
10714 )
10715 }
10716
10717 fn selection_replacement_ranges(
10718 &self,
10719 range: Range<OffsetUtf16>,
10720 cx: &AppContext,
10721 ) -> Vec<Range<OffsetUtf16>> {
10722 let selections = self.selections.all::<OffsetUtf16>(cx);
10723 let newest_selection = selections
10724 .iter()
10725 .max_by_key(|selection| selection.id)
10726 .unwrap();
10727 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10728 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10729 let snapshot = self.buffer.read(cx).read(cx);
10730 selections
10731 .into_iter()
10732 .map(|mut selection| {
10733 selection.start.0 =
10734 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10735 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10736 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10737 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10738 })
10739 .collect()
10740 }
10741
10742 fn report_editor_event(
10743 &self,
10744 operation: &'static str,
10745 file_extension: Option<String>,
10746 cx: &AppContext,
10747 ) {
10748 if cfg!(any(test, feature = "test-support")) {
10749 return;
10750 }
10751
10752 let Some(project) = &self.project else { return };
10753
10754 // If None, we are in a file without an extension
10755 let file = self
10756 .buffer
10757 .read(cx)
10758 .as_singleton()
10759 .and_then(|b| b.read(cx).file());
10760 let file_extension = file_extension.or(file
10761 .as_ref()
10762 .and_then(|file| Path::new(file.file_name(cx)).extension())
10763 .and_then(|e| e.to_str())
10764 .map(|a| a.to_string()));
10765
10766 let vim_mode = cx
10767 .global::<SettingsStore>()
10768 .raw_user_settings()
10769 .get("vim_mode")
10770 == Some(&serde_json::Value::Bool(true));
10771
10772 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10773 == language::language_settings::InlineCompletionProvider::Copilot;
10774 let copilot_enabled_for_language = self
10775 .buffer
10776 .read(cx)
10777 .settings_at(0, cx)
10778 .show_inline_completions;
10779
10780 let telemetry = project.read(cx).client().telemetry().clone();
10781 telemetry.report_editor_event(
10782 file_extension,
10783 vim_mode,
10784 operation,
10785 copilot_enabled,
10786 copilot_enabled_for_language,
10787 )
10788 }
10789
10790 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10791 /// with each line being an array of {text, highlight} objects.
10792 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10793 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10794 return;
10795 };
10796
10797 #[derive(Serialize)]
10798 struct Chunk<'a> {
10799 text: String,
10800 highlight: Option<&'a str>,
10801 }
10802
10803 let snapshot = buffer.read(cx).snapshot();
10804 let range = self
10805 .selected_text_range(cx)
10806 .and_then(|selected_range| {
10807 if selected_range.is_empty() {
10808 None
10809 } else {
10810 Some(selected_range)
10811 }
10812 })
10813 .unwrap_or_else(|| 0..snapshot.len());
10814
10815 let chunks = snapshot.chunks(range, true);
10816 let mut lines = Vec::new();
10817 let mut line: VecDeque<Chunk> = VecDeque::new();
10818
10819 let Some(style) = self.style.as_ref() else {
10820 return;
10821 };
10822
10823 for chunk in chunks {
10824 let highlight = chunk
10825 .syntax_highlight_id
10826 .and_then(|id| id.name(&style.syntax));
10827 let mut chunk_lines = chunk.text.split('\n').peekable();
10828 while let Some(text) = chunk_lines.next() {
10829 let mut merged_with_last_token = false;
10830 if let Some(last_token) = line.back_mut() {
10831 if last_token.highlight == highlight {
10832 last_token.text.push_str(text);
10833 merged_with_last_token = true;
10834 }
10835 }
10836
10837 if !merged_with_last_token {
10838 line.push_back(Chunk {
10839 text: text.into(),
10840 highlight,
10841 });
10842 }
10843
10844 if chunk_lines.peek().is_some() {
10845 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10846 line.pop_front();
10847 }
10848 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10849 line.pop_back();
10850 }
10851
10852 lines.push(mem::take(&mut line));
10853 }
10854 }
10855 }
10856
10857 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10858 return;
10859 };
10860 cx.write_to_clipboard(ClipboardItem::new(lines));
10861 }
10862
10863 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10864 &self.inlay_hint_cache
10865 }
10866
10867 pub fn replay_insert_event(
10868 &mut self,
10869 text: &str,
10870 relative_utf16_range: Option<Range<isize>>,
10871 cx: &mut ViewContext<Self>,
10872 ) {
10873 if !self.input_enabled {
10874 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10875 return;
10876 }
10877 if let Some(relative_utf16_range) = relative_utf16_range {
10878 let selections = self.selections.all::<OffsetUtf16>(cx);
10879 self.change_selections(None, cx, |s| {
10880 let new_ranges = selections.into_iter().map(|range| {
10881 let start = OffsetUtf16(
10882 range
10883 .head()
10884 .0
10885 .saturating_add_signed(relative_utf16_range.start),
10886 );
10887 let end = OffsetUtf16(
10888 range
10889 .head()
10890 .0
10891 .saturating_add_signed(relative_utf16_range.end),
10892 );
10893 start..end
10894 });
10895 s.select_ranges(new_ranges);
10896 });
10897 }
10898
10899 self.handle_input(text, cx);
10900 }
10901
10902 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10903 let Some(project) = self.project.as_ref() else {
10904 return false;
10905 };
10906 let project = project.read(cx);
10907
10908 let mut supports = false;
10909 self.buffer().read(cx).for_each_buffer(|buffer| {
10910 if !supports {
10911 supports = project
10912 .language_servers_for_buffer(buffer.read(cx), cx)
10913 .any(
10914 |(_, server)| match server.capabilities().inlay_hint_provider {
10915 Some(lsp::OneOf::Left(enabled)) => enabled,
10916 Some(lsp::OneOf::Right(_)) => true,
10917 None => false,
10918 },
10919 )
10920 }
10921 });
10922 supports
10923 }
10924
10925 pub fn focus(&self, cx: &mut WindowContext) {
10926 cx.focus(&self.focus_handle)
10927 }
10928
10929 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10930 self.focus_handle.is_focused(cx)
10931 }
10932
10933 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10934 cx.emit(EditorEvent::Focused);
10935 if let Some(rename) = self.pending_rename.as_ref() {
10936 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10937 cx.focus(&rename_editor_focus_handle);
10938 } else {
10939 if let Some(blame) = self.blame.as_ref() {
10940 blame.update(cx, GitBlame::focus)
10941 }
10942
10943 self.blink_manager.update(cx, BlinkManager::enable);
10944 self.show_cursor_names(cx);
10945 self.buffer.update(cx, |buffer, cx| {
10946 buffer.finalize_last_transaction(cx);
10947 if self.leader_peer_id.is_none() {
10948 buffer.set_active_selections(
10949 &self.selections.disjoint_anchors(),
10950 self.selections.line_mode,
10951 self.cursor_shape,
10952 cx,
10953 );
10954 }
10955 });
10956 }
10957 }
10958
10959 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10960 self.blink_manager.update(cx, BlinkManager::disable);
10961 self.buffer
10962 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10963
10964 if let Some(blame) = self.blame.as_ref() {
10965 blame.update(cx, GitBlame::blur)
10966 }
10967 self.hide_context_menu(cx);
10968 hide_hover(self, cx);
10969 cx.emit(EditorEvent::Blurred);
10970 cx.notify();
10971 }
10972
10973 pub fn register_action<A: Action>(
10974 &mut self,
10975 listener: impl Fn(&A, &mut WindowContext) + 'static,
10976 ) -> &mut Self {
10977 let listener = Arc::new(listener);
10978
10979 self.editor_actions.push(Box::new(move |cx| {
10980 let _view = cx.view().clone();
10981 let cx = cx.window_context();
10982 let listener = listener.clone();
10983 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10984 let action = action.downcast_ref().unwrap();
10985 if phase == DispatchPhase::Bubble {
10986 listener(action, cx)
10987 }
10988 })
10989 }));
10990 self
10991 }
10992}
10993
10994fn hunks_for_selections(
10995 multi_buffer_snapshot: &MultiBufferSnapshot,
10996 selections: &[Selection<Anchor>],
10997) -> Vec<DiffHunk<MultiBufferRow>> {
10998 let mut hunks = Vec::with_capacity(selections.len());
10999 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11000 HashMap::default();
11001 let buffer_rows_for_selections = selections.iter().map(|selection| {
11002 let head = selection.head();
11003 let tail = selection.tail();
11004 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11005 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11006 if start > end {
11007 end..start
11008 } else {
11009 start..end
11010 }
11011 });
11012
11013 for selected_multi_buffer_rows in buffer_rows_for_selections {
11014 let query_rows =
11015 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11016 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11017 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11018 // when the caret is just above or just below the deleted hunk.
11019 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11020 let related_to_selection = if allow_adjacent {
11021 hunk.associated_range.overlaps(&query_rows)
11022 || hunk.associated_range.start == query_rows.end
11023 || hunk.associated_range.end == query_rows.start
11024 } else {
11025 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11026 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11027 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11028 || selected_multi_buffer_rows.end == hunk.associated_range.start
11029 };
11030 if related_to_selection {
11031 if !processed_buffer_rows
11032 .entry(hunk.buffer_id)
11033 .or_default()
11034 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11035 {
11036 continue;
11037 }
11038 hunks.push(hunk);
11039 }
11040 }
11041 }
11042
11043 hunks
11044}
11045
11046pub trait CollaborationHub {
11047 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11048 fn user_participant_indices<'a>(
11049 &self,
11050 cx: &'a AppContext,
11051 ) -> &'a HashMap<u64, ParticipantIndex>;
11052 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11053}
11054
11055impl CollaborationHub for Model<Project> {
11056 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11057 self.read(cx).collaborators()
11058 }
11059
11060 fn user_participant_indices<'a>(
11061 &self,
11062 cx: &'a AppContext,
11063 ) -> &'a HashMap<u64, ParticipantIndex> {
11064 self.read(cx).user_store().read(cx).participant_indices()
11065 }
11066
11067 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11068 let this = self.read(cx);
11069 let user_ids = this.collaborators().values().map(|c| c.user_id);
11070 this.user_store().read_with(cx, |user_store, cx| {
11071 user_store.participant_names(user_ids, cx)
11072 })
11073 }
11074}
11075
11076pub trait CompletionProvider {
11077 fn completions(
11078 &self,
11079 buffer: &Model<Buffer>,
11080 buffer_position: text::Anchor,
11081 cx: &mut ViewContext<Editor>,
11082 ) -> Task<Result<Vec<Completion>>>;
11083
11084 fn resolve_completions(
11085 &self,
11086 buffer: Model<Buffer>,
11087 completion_indices: Vec<usize>,
11088 completions: Arc<RwLock<Box<[Completion]>>>,
11089 cx: &mut ViewContext<Editor>,
11090 ) -> Task<Result<bool>>;
11091
11092 fn apply_additional_edits_for_completion(
11093 &self,
11094 buffer: Model<Buffer>,
11095 completion: Completion,
11096 push_to_history: bool,
11097 cx: &mut ViewContext<Editor>,
11098 ) -> Task<Result<Option<language::Transaction>>>;
11099
11100 fn is_completion_trigger(
11101 &self,
11102 buffer: &Model<Buffer>,
11103 position: language::Anchor,
11104 text: &str,
11105 trigger_in_words: bool,
11106 cx: &mut ViewContext<Editor>,
11107 ) -> bool;
11108}
11109
11110impl CompletionProvider for Model<Project> {
11111 fn completions(
11112 &self,
11113 buffer: &Model<Buffer>,
11114 buffer_position: text::Anchor,
11115 cx: &mut ViewContext<Editor>,
11116 ) -> Task<Result<Vec<Completion>>> {
11117 self.update(cx, |project, cx| {
11118 project.completions(&buffer, buffer_position, cx)
11119 })
11120 }
11121
11122 fn resolve_completions(
11123 &self,
11124 buffer: Model<Buffer>,
11125 completion_indices: Vec<usize>,
11126 completions: Arc<RwLock<Box<[Completion]>>>,
11127 cx: &mut ViewContext<Editor>,
11128 ) -> Task<Result<bool>> {
11129 self.update(cx, |project, cx| {
11130 project.resolve_completions(buffer, completion_indices, completions, cx)
11131 })
11132 }
11133
11134 fn apply_additional_edits_for_completion(
11135 &self,
11136 buffer: Model<Buffer>,
11137 completion: Completion,
11138 push_to_history: bool,
11139 cx: &mut ViewContext<Editor>,
11140 ) -> Task<Result<Option<language::Transaction>>> {
11141 self.update(cx, |project, cx| {
11142 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11143 })
11144 }
11145
11146 fn is_completion_trigger(
11147 &self,
11148 buffer: &Model<Buffer>,
11149 position: language::Anchor,
11150 text: &str,
11151 trigger_in_words: bool,
11152 cx: &mut ViewContext<Editor>,
11153 ) -> bool {
11154 if !EditorSettings::get_global(cx).show_completions_on_input {
11155 return false;
11156 }
11157
11158 let mut chars = text.chars();
11159 let char = if let Some(char) = chars.next() {
11160 char
11161 } else {
11162 return false;
11163 };
11164 if chars.next().is_some() {
11165 return false;
11166 }
11167
11168 let buffer = buffer.read(cx);
11169 let scope = buffer.snapshot().language_scope_at(position);
11170 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11171 return true;
11172 }
11173
11174 buffer
11175 .completion_triggers()
11176 .iter()
11177 .any(|string| string == text)
11178 }
11179}
11180
11181fn inlay_hint_settings(
11182 location: Anchor,
11183 snapshot: &MultiBufferSnapshot,
11184 cx: &mut ViewContext<'_, Editor>,
11185) -> InlayHintSettings {
11186 let file = snapshot.file_at(location);
11187 let language = snapshot.language_at(location);
11188 let settings = all_language_settings(file, cx);
11189 settings
11190 .language(language.map(|l| l.name()).as_deref())
11191 .inlay_hints
11192}
11193
11194fn consume_contiguous_rows(
11195 contiguous_row_selections: &mut Vec<Selection<Point>>,
11196 selection: &Selection<Point>,
11197 display_map: &DisplaySnapshot,
11198 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11199) -> (MultiBufferRow, MultiBufferRow) {
11200 contiguous_row_selections.push(selection.clone());
11201 let start_row = MultiBufferRow(selection.start.row);
11202 let mut end_row = ending_row(selection, display_map);
11203
11204 while let Some(next_selection) = selections.peek() {
11205 if next_selection.start.row <= end_row.0 {
11206 end_row = ending_row(next_selection, display_map);
11207 contiguous_row_selections.push(selections.next().unwrap().clone());
11208 } else {
11209 break;
11210 }
11211 }
11212 (start_row, end_row)
11213}
11214
11215fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11216 if next_selection.end.column > 0 || next_selection.is_empty() {
11217 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11218 } else {
11219 MultiBufferRow(next_selection.end.row)
11220 }
11221}
11222
11223impl EditorSnapshot {
11224 pub fn remote_selections_in_range<'a>(
11225 &'a self,
11226 range: &'a Range<Anchor>,
11227 collaboration_hub: &dyn CollaborationHub,
11228 cx: &'a AppContext,
11229 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11230 let participant_names = collaboration_hub.user_names(cx);
11231 let participant_indices = collaboration_hub.user_participant_indices(cx);
11232 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11233 let collaborators_by_replica_id = collaborators_by_peer_id
11234 .iter()
11235 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11236 .collect::<HashMap<_, _>>();
11237 self.buffer_snapshot
11238 .remote_selections_in_range(range)
11239 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11240 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11241 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11242 let user_name = participant_names.get(&collaborator.user_id).cloned();
11243 Some(RemoteSelection {
11244 replica_id,
11245 selection,
11246 cursor_shape,
11247 line_mode,
11248 participant_index,
11249 peer_id: collaborator.peer_id,
11250 user_name,
11251 })
11252 })
11253 }
11254
11255 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11256 self.display_snapshot.buffer_snapshot.language_at(position)
11257 }
11258
11259 pub fn is_focused(&self) -> bool {
11260 self.is_focused
11261 }
11262
11263 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11264 self.placeholder_text.as_ref()
11265 }
11266
11267 pub fn scroll_position(&self) -> gpui::Point<f32> {
11268 self.scroll_anchor.scroll_position(&self.display_snapshot)
11269 }
11270
11271 pub fn gutter_dimensions(
11272 &self,
11273 font_id: FontId,
11274 font_size: Pixels,
11275 em_width: Pixels,
11276 max_line_number_width: Pixels,
11277 cx: &AppContext,
11278 ) -> GutterDimensions {
11279 if !self.show_gutter {
11280 return GutterDimensions::default();
11281 }
11282 let descent = cx.text_system().descent(font_id, font_size);
11283
11284 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11285 matches!(
11286 ProjectSettings::get_global(cx).git.git_gutter,
11287 Some(GitGutterSetting::TrackedFiles)
11288 )
11289 });
11290 let gutter_settings = EditorSettings::get_global(cx).gutter;
11291 let show_line_numbers = self
11292 .show_line_numbers
11293 .unwrap_or_else(|| gutter_settings.line_numbers);
11294 let line_gutter_width = if show_line_numbers {
11295 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11296 let min_width_for_number_on_gutter = em_width * 4.0;
11297 max_line_number_width.max(min_width_for_number_on_gutter)
11298 } else {
11299 0.0.into()
11300 };
11301
11302 let show_code_actions = self
11303 .show_code_actions
11304 .unwrap_or_else(|| gutter_settings.code_actions);
11305
11306 let git_blame_entries_width = self
11307 .render_git_blame_gutter
11308 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11309
11310 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11311 left_padding += if show_code_actions {
11312 em_width * 3.0
11313 } else if show_git_gutter && show_line_numbers {
11314 em_width * 2.0
11315 } else if show_git_gutter || show_line_numbers {
11316 em_width
11317 } else {
11318 px(0.)
11319 };
11320
11321 let right_padding = if gutter_settings.folds && show_line_numbers {
11322 em_width * 4.0
11323 } else if gutter_settings.folds {
11324 em_width * 3.0
11325 } else if show_line_numbers {
11326 em_width
11327 } else {
11328 px(0.)
11329 };
11330
11331 GutterDimensions {
11332 left_padding,
11333 right_padding,
11334 width: line_gutter_width + left_padding + right_padding,
11335 margin: -descent,
11336 git_blame_entries_width,
11337 }
11338 }
11339
11340 pub fn render_fold_toggle(
11341 &self,
11342 buffer_row: MultiBufferRow,
11343 row_contains_cursor: bool,
11344 editor: View<Editor>,
11345 cx: &mut WindowContext,
11346 ) -> Option<AnyElement> {
11347 let folded = self.is_line_folded(buffer_row);
11348
11349 if let Some(flap) = self
11350 .flap_snapshot
11351 .query_row(buffer_row, &self.buffer_snapshot)
11352 {
11353 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11354 if folded {
11355 editor.update(cx, |editor, cx| {
11356 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11357 });
11358 } else {
11359 editor.update(cx, |editor, cx| {
11360 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11361 });
11362 }
11363 });
11364
11365 Some((flap.render_toggle)(
11366 buffer_row,
11367 folded,
11368 toggle_callback,
11369 cx,
11370 ))
11371 } else if folded
11372 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11373 {
11374 Some(
11375 IconButton::new(
11376 ("indent-fold-indicator", buffer_row.0),
11377 ui::IconName::ChevronDown,
11378 )
11379 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
11380 if folded {
11381 this.unfold_at(&UnfoldAt { buffer_row }, cx);
11382 } else {
11383 this.fold_at(&FoldAt { buffer_row }, cx);
11384 }
11385 }))
11386 .icon_color(ui::Color::Muted)
11387 .icon_size(ui::IconSize::Small)
11388 .selected(folded)
11389 .selected_icon(ui::IconName::ChevronRight)
11390 .size(ui::ButtonSize::None)
11391 .into_any_element(),
11392 )
11393 } else {
11394 None
11395 }
11396 }
11397
11398 pub fn render_flap_trailer(
11399 &self,
11400 buffer_row: MultiBufferRow,
11401 cx: &mut WindowContext,
11402 ) -> Option<AnyElement> {
11403 let folded = self.is_line_folded(buffer_row);
11404 let flap = self
11405 .flap_snapshot
11406 .query_row(buffer_row, &self.buffer_snapshot)?;
11407 Some((flap.render_trailer)(buffer_row, folded, cx))
11408 }
11409}
11410
11411impl Deref for EditorSnapshot {
11412 type Target = DisplaySnapshot;
11413
11414 fn deref(&self) -> &Self::Target {
11415 &self.display_snapshot
11416 }
11417}
11418
11419#[derive(Clone, Debug, PartialEq, Eq)]
11420pub enum EditorEvent {
11421 InputIgnored {
11422 text: Arc<str>,
11423 },
11424 InputHandled {
11425 utf16_range_to_replace: Option<Range<isize>>,
11426 text: Arc<str>,
11427 },
11428 ExcerptsAdded {
11429 buffer: Model<Buffer>,
11430 predecessor: ExcerptId,
11431 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11432 },
11433 ExcerptsRemoved {
11434 ids: Vec<ExcerptId>,
11435 },
11436 BufferEdited,
11437 Edited,
11438 Reparsed,
11439 Focused,
11440 Blurred,
11441 DirtyChanged,
11442 Saved,
11443 TitleChanged,
11444 DiffBaseChanged,
11445 SelectionsChanged {
11446 local: bool,
11447 },
11448 ScrollPositionChanged {
11449 local: bool,
11450 autoscroll: bool,
11451 },
11452 Closed,
11453 TransactionUndone {
11454 transaction_id: clock::Lamport,
11455 },
11456 TransactionBegun {
11457 transaction_id: clock::Lamport,
11458 },
11459}
11460
11461impl EventEmitter<EditorEvent> for Editor {}
11462
11463impl FocusableView for Editor {
11464 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11465 self.focus_handle.clone()
11466 }
11467}
11468
11469impl Render for Editor {
11470 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11471 let settings = ThemeSettings::get_global(cx);
11472
11473 let text_style = match self.mode {
11474 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11475 color: cx.theme().colors().editor_foreground,
11476 font_family: settings.ui_font.family.clone(),
11477 font_features: settings.ui_font.features.clone(),
11478 font_size: rems(0.875).into(),
11479 font_weight: settings.ui_font.weight,
11480 font_style: FontStyle::Normal,
11481 line_height: relative(settings.buffer_line_height.value()),
11482 background_color: None,
11483 underline: None,
11484 strikethrough: None,
11485 white_space: WhiteSpace::Normal,
11486 },
11487 EditorMode::Full => TextStyle {
11488 color: cx.theme().colors().editor_foreground,
11489 font_family: settings.buffer_font.family.clone(),
11490 font_features: settings.buffer_font.features.clone(),
11491 font_size: settings.buffer_font_size(cx).into(),
11492 font_weight: settings.buffer_font.weight,
11493 font_style: FontStyle::Normal,
11494 line_height: relative(settings.buffer_line_height.value()),
11495 background_color: None,
11496 underline: None,
11497 strikethrough: None,
11498 white_space: WhiteSpace::Normal,
11499 },
11500 };
11501
11502 let background = match self.mode {
11503 EditorMode::SingleLine => cx.theme().system().transparent,
11504 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11505 EditorMode::Full => cx.theme().colors().editor_background,
11506 };
11507
11508 EditorElement::new(
11509 cx.view(),
11510 EditorStyle {
11511 background,
11512 local_player: cx.theme().players().local(),
11513 text: text_style,
11514 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11515 syntax: cx.theme().syntax().clone(),
11516 status: cx.theme().status().clone(),
11517 inlay_hints_style: HighlightStyle {
11518 color: Some(cx.theme().status().hint),
11519 ..HighlightStyle::default()
11520 },
11521 suggestions_style: HighlightStyle {
11522 color: Some(cx.theme().status().predictive),
11523 ..HighlightStyle::default()
11524 },
11525 },
11526 )
11527 }
11528}
11529
11530impl ViewInputHandler for Editor {
11531 fn text_for_range(
11532 &mut self,
11533 range_utf16: Range<usize>,
11534 cx: &mut ViewContext<Self>,
11535 ) -> Option<String> {
11536 Some(
11537 self.buffer
11538 .read(cx)
11539 .read(cx)
11540 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11541 .collect(),
11542 )
11543 }
11544
11545 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11546 // Prevent the IME menu from appearing when holding down an alphabetic key
11547 // while input is disabled.
11548 if !self.input_enabled {
11549 return None;
11550 }
11551
11552 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11553 Some(range.start.0..range.end.0)
11554 }
11555
11556 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11557 let snapshot = self.buffer.read(cx).read(cx);
11558 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11559 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11560 }
11561
11562 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11563 self.clear_highlights::<InputComposition>(cx);
11564 self.ime_transaction.take();
11565 }
11566
11567 fn replace_text_in_range(
11568 &mut self,
11569 range_utf16: Option<Range<usize>>,
11570 text: &str,
11571 cx: &mut ViewContext<Self>,
11572 ) {
11573 if !self.input_enabled {
11574 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11575 return;
11576 }
11577
11578 self.transact(cx, |this, cx| {
11579 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11580 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11581 Some(this.selection_replacement_ranges(range_utf16, cx))
11582 } else {
11583 this.marked_text_ranges(cx)
11584 };
11585
11586 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11587 let newest_selection_id = this.selections.newest_anchor().id;
11588 this.selections
11589 .all::<OffsetUtf16>(cx)
11590 .iter()
11591 .zip(ranges_to_replace.iter())
11592 .find_map(|(selection, range)| {
11593 if selection.id == newest_selection_id {
11594 Some(
11595 (range.start.0 as isize - selection.head().0 as isize)
11596 ..(range.end.0 as isize - selection.head().0 as isize),
11597 )
11598 } else {
11599 None
11600 }
11601 })
11602 });
11603
11604 cx.emit(EditorEvent::InputHandled {
11605 utf16_range_to_replace: range_to_replace,
11606 text: text.into(),
11607 });
11608
11609 if let Some(new_selected_ranges) = new_selected_ranges {
11610 this.change_selections(None, cx, |selections| {
11611 selections.select_ranges(new_selected_ranges)
11612 });
11613 this.backspace(&Default::default(), cx);
11614 }
11615
11616 this.handle_input(text, cx);
11617 });
11618
11619 if let Some(transaction) = self.ime_transaction {
11620 self.buffer.update(cx, |buffer, cx| {
11621 buffer.group_until_transaction(transaction, cx);
11622 });
11623 }
11624
11625 self.unmark_text(cx);
11626 }
11627
11628 fn replace_and_mark_text_in_range(
11629 &mut self,
11630 range_utf16: Option<Range<usize>>,
11631 text: &str,
11632 new_selected_range_utf16: Option<Range<usize>>,
11633 cx: &mut ViewContext<Self>,
11634 ) {
11635 if !self.input_enabled {
11636 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11637 return;
11638 }
11639
11640 let transaction = self.transact(cx, |this, cx| {
11641 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11642 let snapshot = this.buffer.read(cx).read(cx);
11643 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11644 for marked_range in &mut marked_ranges {
11645 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11646 marked_range.start.0 += relative_range_utf16.start;
11647 marked_range.start =
11648 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11649 marked_range.end =
11650 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11651 }
11652 }
11653 Some(marked_ranges)
11654 } else if let Some(range_utf16) = range_utf16 {
11655 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11656 Some(this.selection_replacement_ranges(range_utf16, cx))
11657 } else {
11658 None
11659 };
11660
11661 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11662 let newest_selection_id = this.selections.newest_anchor().id;
11663 this.selections
11664 .all::<OffsetUtf16>(cx)
11665 .iter()
11666 .zip(ranges_to_replace.iter())
11667 .find_map(|(selection, range)| {
11668 if selection.id == newest_selection_id {
11669 Some(
11670 (range.start.0 as isize - selection.head().0 as isize)
11671 ..(range.end.0 as isize - selection.head().0 as isize),
11672 )
11673 } else {
11674 None
11675 }
11676 })
11677 });
11678
11679 cx.emit(EditorEvent::InputHandled {
11680 utf16_range_to_replace: range_to_replace,
11681 text: text.into(),
11682 });
11683
11684 if let Some(ranges) = ranges_to_replace {
11685 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11686 }
11687
11688 let marked_ranges = {
11689 let snapshot = this.buffer.read(cx).read(cx);
11690 this.selections
11691 .disjoint_anchors()
11692 .iter()
11693 .map(|selection| {
11694 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11695 })
11696 .collect::<Vec<_>>()
11697 };
11698
11699 if text.is_empty() {
11700 this.unmark_text(cx);
11701 } else {
11702 this.highlight_text::<InputComposition>(
11703 marked_ranges.clone(),
11704 HighlightStyle {
11705 underline: Some(UnderlineStyle {
11706 thickness: px(1.),
11707 color: None,
11708 wavy: false,
11709 }),
11710 ..Default::default()
11711 },
11712 cx,
11713 );
11714 }
11715
11716 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11717 let use_autoclose = this.use_autoclose;
11718 this.set_use_autoclose(false);
11719 this.handle_input(text, cx);
11720 this.set_use_autoclose(use_autoclose);
11721
11722 if let Some(new_selected_range) = new_selected_range_utf16 {
11723 let snapshot = this.buffer.read(cx).read(cx);
11724 let new_selected_ranges = marked_ranges
11725 .into_iter()
11726 .map(|marked_range| {
11727 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11728 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11729 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11730 snapshot.clip_offset_utf16(new_start, Bias::Left)
11731 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11732 })
11733 .collect::<Vec<_>>();
11734
11735 drop(snapshot);
11736 this.change_selections(None, cx, |selections| {
11737 selections.select_ranges(new_selected_ranges)
11738 });
11739 }
11740 });
11741
11742 self.ime_transaction = self.ime_transaction.or(transaction);
11743 if let Some(transaction) = self.ime_transaction {
11744 self.buffer.update(cx, |buffer, cx| {
11745 buffer.group_until_transaction(transaction, cx);
11746 });
11747 }
11748
11749 if self.text_highlights::<InputComposition>(cx).is_none() {
11750 self.ime_transaction.take();
11751 }
11752 }
11753
11754 fn bounds_for_range(
11755 &mut self,
11756 range_utf16: Range<usize>,
11757 element_bounds: gpui::Bounds<Pixels>,
11758 cx: &mut ViewContext<Self>,
11759 ) -> Option<gpui::Bounds<Pixels>> {
11760 let text_layout_details = self.text_layout_details(cx);
11761 let style = &text_layout_details.editor_style;
11762 let font_id = cx.text_system().resolve_font(&style.text.font());
11763 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11764 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11765 let em_width = cx
11766 .text_system()
11767 .typographic_bounds(font_id, font_size, 'm')
11768 .unwrap()
11769 .size
11770 .width;
11771
11772 let snapshot = self.snapshot(cx);
11773 let scroll_position = snapshot.scroll_position();
11774 let scroll_left = scroll_position.x * em_width;
11775
11776 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11777 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11778 + self.gutter_dimensions.width;
11779 let y = line_height * (start.row().as_f32() - scroll_position.y);
11780
11781 Some(Bounds {
11782 origin: element_bounds.origin + point(x, y),
11783 size: size(em_width, line_height),
11784 })
11785 }
11786}
11787
11788trait SelectionExt {
11789 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11790 fn spanned_rows(
11791 &self,
11792 include_end_if_at_line_start: bool,
11793 map: &DisplaySnapshot,
11794 ) -> Range<MultiBufferRow>;
11795}
11796
11797impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11798 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11799 let start = self
11800 .start
11801 .to_point(&map.buffer_snapshot)
11802 .to_display_point(map);
11803 let end = self
11804 .end
11805 .to_point(&map.buffer_snapshot)
11806 .to_display_point(map);
11807 if self.reversed {
11808 end..start
11809 } else {
11810 start..end
11811 }
11812 }
11813
11814 fn spanned_rows(
11815 &self,
11816 include_end_if_at_line_start: bool,
11817 map: &DisplaySnapshot,
11818 ) -> Range<MultiBufferRow> {
11819 let start = self.start.to_point(&map.buffer_snapshot);
11820 let mut end = self.end.to_point(&map.buffer_snapshot);
11821 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11822 end.row -= 1;
11823 }
11824
11825 let buffer_start = map.prev_line_boundary(start).0;
11826 let buffer_end = map.next_line_boundary(end).0;
11827 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11828 }
11829}
11830
11831impl<T: InvalidationRegion> InvalidationStack<T> {
11832 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11833 where
11834 S: Clone + ToOffset,
11835 {
11836 while let Some(region) = self.last() {
11837 let all_selections_inside_invalidation_ranges =
11838 if selections.len() == region.ranges().len() {
11839 selections
11840 .iter()
11841 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11842 .all(|(selection, invalidation_range)| {
11843 let head = selection.head().to_offset(buffer);
11844 invalidation_range.start <= head && invalidation_range.end >= head
11845 })
11846 } else {
11847 false
11848 };
11849
11850 if all_selections_inside_invalidation_ranges {
11851 break;
11852 } else {
11853 self.pop();
11854 }
11855 }
11856 }
11857}
11858
11859impl<T> Default for InvalidationStack<T> {
11860 fn default() -> Self {
11861 Self(Default::default())
11862 }
11863}
11864
11865impl<T> Deref for InvalidationStack<T> {
11866 type Target = Vec<T>;
11867
11868 fn deref(&self) -> &Self::Target {
11869 &self.0
11870 }
11871}
11872
11873impl<T> DerefMut for InvalidationStack<T> {
11874 fn deref_mut(&mut self) -> &mut Self::Target {
11875 &mut self.0
11876 }
11877}
11878
11879impl InvalidationRegion for SnippetState {
11880 fn ranges(&self) -> &[Range<Anchor>] {
11881 &self.ranges[self.active_index]
11882 }
11883}
11884
11885pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11886 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11887
11888 Box::new(move |cx: &mut BlockContext| {
11889 let group_id: SharedString = cx.block_id.to_string().into();
11890
11891 let mut text_style = cx.text_style().clone();
11892 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11893 let theme_settings = ThemeSettings::get_global(cx);
11894 text_style.font_family = theme_settings.buffer_font.family.clone();
11895 text_style.font_style = theme_settings.buffer_font.style;
11896 text_style.font_features = theme_settings.buffer_font.features.clone();
11897 text_style.font_weight = theme_settings.buffer_font.weight;
11898
11899 let multi_line_diagnostic = diagnostic.message.contains('\n');
11900
11901 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11902 if multi_line_diagnostic {
11903 v_flex()
11904 } else {
11905 h_flex()
11906 }
11907 .children(diagnostic.is_primary.then(|| {
11908 IconButton::new(("close-block", block_id), IconName::XCircle)
11909 .icon_color(Color::Muted)
11910 .size(ButtonSize::Compact)
11911 .style(ButtonStyle::Transparent)
11912 .visible_on_hover(group_id.clone())
11913 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11914 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11915 }))
11916 .child(
11917 IconButton::new(("copy-block", block_id), IconName::Copy)
11918 .icon_color(Color::Muted)
11919 .size(ButtonSize::Compact)
11920 .style(ButtonStyle::Transparent)
11921 .visible_on_hover(group_id.clone())
11922 .on_click({
11923 let message = diagnostic.message.clone();
11924 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11925 })
11926 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11927 )
11928 };
11929
11930 let icon_size = buttons(&diagnostic, cx.block_id)
11931 .into_any_element()
11932 .layout_as_root(AvailableSpace::min_size(), cx);
11933
11934 h_flex()
11935 .id(cx.block_id)
11936 .group(group_id.clone())
11937 .relative()
11938 .size_full()
11939 .pl(cx.gutter_dimensions.width)
11940 .w(cx.max_width + cx.gutter_dimensions.width)
11941 .child(
11942 div()
11943 .flex()
11944 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11945 .flex_shrink(),
11946 )
11947 .child(buttons(&diagnostic, cx.block_id))
11948 .child(div().flex().flex_shrink_0().child(
11949 StyledText::new(text_without_backticks.clone()).with_highlights(
11950 &text_style,
11951 code_ranges.iter().map(|range| {
11952 (
11953 range.clone(),
11954 HighlightStyle {
11955 font_weight: Some(FontWeight::BOLD),
11956 ..Default::default()
11957 },
11958 )
11959 }),
11960 ),
11961 ))
11962 .into_any_element()
11963 })
11964}
11965
11966pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11967 let mut text_without_backticks = String::new();
11968 let mut code_ranges = Vec::new();
11969
11970 if let Some(source) = &diagnostic.source {
11971 text_without_backticks.push_str(&source);
11972 code_ranges.push(0..source.len());
11973 text_without_backticks.push_str(": ");
11974 }
11975
11976 let mut prev_offset = 0;
11977 let mut in_code_block = false;
11978 for (ix, _) in diagnostic
11979 .message
11980 .match_indices('`')
11981 .chain([(diagnostic.message.len(), "")])
11982 {
11983 let prev_len = text_without_backticks.len();
11984 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11985 prev_offset = ix + 1;
11986 if in_code_block {
11987 code_ranges.push(prev_len..text_without_backticks.len());
11988 in_code_block = false;
11989 } else {
11990 in_code_block = true;
11991 }
11992 }
11993
11994 (text_without_backticks.into(), code_ranges)
11995}
11996
11997fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11998 match (severity, valid) {
11999 (DiagnosticSeverity::ERROR, true) => colors.error,
12000 (DiagnosticSeverity::ERROR, false) => colors.error,
12001 (DiagnosticSeverity::WARNING, true) => colors.warning,
12002 (DiagnosticSeverity::WARNING, false) => colors.warning,
12003 (DiagnosticSeverity::INFORMATION, true) => colors.info,
12004 (DiagnosticSeverity::INFORMATION, false) => colors.info,
12005 (DiagnosticSeverity::HINT, true) => colors.info,
12006 (DiagnosticSeverity::HINT, false) => colors.info,
12007 _ => colors.ignored,
12008 }
12009}
12010
12011pub fn styled_runs_for_code_label<'a>(
12012 label: &'a CodeLabel,
12013 syntax_theme: &'a theme::SyntaxTheme,
12014) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12015 let fade_out = HighlightStyle {
12016 fade_out: Some(0.35),
12017 ..Default::default()
12018 };
12019
12020 let mut prev_end = label.filter_range.end;
12021 label
12022 .runs
12023 .iter()
12024 .enumerate()
12025 .flat_map(move |(ix, (range, highlight_id))| {
12026 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12027 style
12028 } else {
12029 return Default::default();
12030 };
12031 let mut muted_style = style;
12032 muted_style.highlight(fade_out);
12033
12034 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12035 if range.start >= label.filter_range.end {
12036 if range.start > prev_end {
12037 runs.push((prev_end..range.start, fade_out));
12038 }
12039 runs.push((range.clone(), muted_style));
12040 } else if range.end <= label.filter_range.end {
12041 runs.push((range.clone(), style));
12042 } else {
12043 runs.push((range.start..label.filter_range.end, style));
12044 runs.push((label.filter_range.end..range.end, muted_style));
12045 }
12046 prev_end = cmp::max(prev_end, range.end);
12047
12048 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12049 runs.push((prev_end..label.text.len(), fade_out));
12050 }
12051
12052 runs
12053 })
12054}
12055
12056pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12057 let mut prev_index = 0;
12058 let mut prev_codepoint: Option<char> = None;
12059 text.char_indices()
12060 .chain([(text.len(), '\0')])
12061 .filter_map(move |(index, codepoint)| {
12062 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12063 let is_boundary = index == text.len()
12064 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12065 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12066 if is_boundary {
12067 let chunk = &text[prev_index..index];
12068 prev_index = index;
12069 Some(chunk)
12070 } else {
12071 None
12072 }
12073 })
12074}
12075
12076trait RangeToAnchorExt {
12077 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12078}
12079
12080impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12081 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12082 let start_offset = self.start.to_offset(snapshot);
12083 let end_offset = self.end.to_offset(snapshot);
12084 if start_offset == end_offset {
12085 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12086 } else {
12087 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12088 }
12089 }
12090}
12091
12092pub trait RowExt {
12093 fn as_f32(&self) -> f32;
12094
12095 fn next_row(&self) -> Self;
12096
12097 fn previous_row(&self) -> Self;
12098
12099 fn minus(&self, other: Self) -> u32;
12100}
12101
12102impl RowExt for DisplayRow {
12103 fn as_f32(&self) -> f32 {
12104 self.0 as f32
12105 }
12106
12107 fn next_row(&self) -> Self {
12108 Self(self.0 + 1)
12109 }
12110
12111 fn previous_row(&self) -> Self {
12112 Self(self.0.saturating_sub(1))
12113 }
12114
12115 fn minus(&self, other: Self) -> u32 {
12116 self.0 - other.0
12117 }
12118}
12119
12120impl RowExt for MultiBufferRow {
12121 fn as_f32(&self) -> f32 {
12122 self.0 as f32
12123 }
12124
12125 fn next_row(&self) -> Self {
12126 Self(self.0 + 1)
12127 }
12128
12129 fn previous_row(&self) -> Self {
12130 Self(self.0.saturating_sub(1))
12131 }
12132
12133 fn minus(&self, other: Self) -> u32 {
12134 self.0 - other.0
12135 }
12136}
12137
12138trait RowRangeExt {
12139 type Row;
12140
12141 fn len(&self) -> usize;
12142
12143 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12144}
12145
12146impl RowRangeExt for Range<MultiBufferRow> {
12147 type Row = MultiBufferRow;
12148
12149 fn len(&self) -> usize {
12150 (self.end.0 - self.start.0) as usize
12151 }
12152
12153 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12154 (self.start.0..self.end.0).map(MultiBufferRow)
12155 }
12156}
12157
12158impl RowRangeExt for Range<DisplayRow> {
12159 type Row = DisplayRow;
12160
12161 fn len(&self) -> usize {
12162 (self.end.0 - self.start.0) as usize
12163 }
12164
12165 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12166 (self.start.0..self.end.0).map(DisplayRow)
12167 }
12168}
12169
12170fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12171 if hunk.diff_base_byte_range.is_empty() {
12172 DiffHunkStatus::Added
12173 } else if hunk.associated_range.is_empty() {
12174 DiffHunkStatus::Removed
12175 } else {
12176 DiffHunkStatus::Modified
12177 }
12178}