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, ListSizingBehavior, Model,
72 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle,
73 Styled, StyledText, Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle,
74 View, ViewContext, 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>, Option<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 GutterDimensions {
558 /// The full width of the space taken up by the gutter.
559 pub fn full_width(&self) -> Pixels {
560 self.margin + self.width
561 }
562
563 /// The width of the space reserved for the fold indicators,
564 /// use alongside 'justify_end' and `gutter_width` to
565 /// right align content with the line numbers
566 pub fn fold_area_width(&self) -> Pixels {
567 self.margin + self.right_padding
568 }
569}
570
571impl Default for GutterDimensions {
572 fn default() -> Self {
573 Self {
574 left_padding: Pixels::ZERO,
575 right_padding: Pixels::ZERO,
576 width: Pixels::ZERO,
577 margin: Pixels::ZERO,
578 git_blame_entries_width: None,
579 }
580 }
581}
582
583#[derive(Debug)]
584pub struct RemoteSelection {
585 pub replica_id: ReplicaId,
586 pub selection: Selection<Anchor>,
587 pub cursor_shape: CursorShape,
588 pub peer_id: PeerId,
589 pub line_mode: bool,
590 pub participant_index: Option<ParticipantIndex>,
591 pub user_name: Option<SharedString>,
592}
593
594#[derive(Clone, Debug)]
595struct SelectionHistoryEntry {
596 selections: Arc<[Selection<Anchor>]>,
597 select_next_state: Option<SelectNextState>,
598 select_prev_state: Option<SelectNextState>,
599 add_selections_state: Option<AddSelectionsState>,
600}
601
602enum SelectionHistoryMode {
603 Normal,
604 Undoing,
605 Redoing,
606}
607
608#[derive(Clone, PartialEq, Eq, Hash)]
609struct HoveredCursor {
610 replica_id: u16,
611 selection_id: usize,
612}
613
614impl Default for SelectionHistoryMode {
615 fn default() -> Self {
616 Self::Normal
617 }
618}
619
620#[derive(Default)]
621struct SelectionHistory {
622 #[allow(clippy::type_complexity)]
623 selections_by_transaction:
624 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
625 mode: SelectionHistoryMode,
626 undo_stack: VecDeque<SelectionHistoryEntry>,
627 redo_stack: VecDeque<SelectionHistoryEntry>,
628}
629
630impl SelectionHistory {
631 fn insert_transaction(
632 &mut self,
633 transaction_id: TransactionId,
634 selections: Arc<[Selection<Anchor>]>,
635 ) {
636 self.selections_by_transaction
637 .insert(transaction_id, (selections, None));
638 }
639
640 #[allow(clippy::type_complexity)]
641 fn transaction(
642 &self,
643 transaction_id: TransactionId,
644 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
645 self.selections_by_transaction.get(&transaction_id)
646 }
647
648 #[allow(clippy::type_complexity)]
649 fn transaction_mut(
650 &mut self,
651 transaction_id: TransactionId,
652 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
653 self.selections_by_transaction.get_mut(&transaction_id)
654 }
655
656 fn push(&mut self, entry: SelectionHistoryEntry) {
657 if !entry.selections.is_empty() {
658 match self.mode {
659 SelectionHistoryMode::Normal => {
660 self.push_undo(entry);
661 self.redo_stack.clear();
662 }
663 SelectionHistoryMode::Undoing => self.push_redo(entry),
664 SelectionHistoryMode::Redoing => self.push_undo(entry),
665 }
666 }
667 }
668
669 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
670 if self
671 .undo_stack
672 .back()
673 .map_or(true, |e| e.selections != entry.selections)
674 {
675 self.undo_stack.push_back(entry);
676 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
677 self.undo_stack.pop_front();
678 }
679 }
680 }
681
682 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
683 if self
684 .redo_stack
685 .back()
686 .map_or(true, |e| e.selections != entry.selections)
687 {
688 self.redo_stack.push_back(entry);
689 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
690 self.redo_stack.pop_front();
691 }
692 }
693 }
694}
695
696struct RowHighlight {
697 index: usize,
698 range: RangeInclusive<Anchor>,
699 color: Option<Hsla>,
700 should_autoscroll: bool,
701}
702
703#[derive(Clone, Debug)]
704struct AddSelectionsState {
705 above: bool,
706 stack: Vec<usize>,
707}
708
709#[derive(Clone)]
710struct SelectNextState {
711 query: AhoCorasick,
712 wordwise: bool,
713 done: bool,
714}
715
716impl std::fmt::Debug for SelectNextState {
717 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
718 f.debug_struct(std::any::type_name::<Self>())
719 .field("wordwise", &self.wordwise)
720 .field("done", &self.done)
721 .finish()
722 }
723}
724
725#[derive(Debug)]
726struct AutocloseRegion {
727 selection_id: usize,
728 range: Range<Anchor>,
729 pair: BracketPair,
730}
731
732#[derive(Debug)]
733struct SnippetState {
734 ranges: Vec<Vec<Range<Anchor>>>,
735 active_index: usize,
736}
737
738#[doc(hidden)]
739pub struct RenameState {
740 pub range: Range<Anchor>,
741 pub old_name: Arc<str>,
742 pub editor: View<Editor>,
743 block_id: BlockId,
744}
745
746struct InvalidationStack<T>(Vec<T>);
747
748struct RegisteredInlineCompletionProvider {
749 provider: Arc<dyn InlineCompletionProviderHandle>,
750 _subscription: Subscription,
751}
752
753enum ContextMenu {
754 Completions(CompletionsMenu),
755 CodeActions(CodeActionsMenu),
756}
757
758impl ContextMenu {
759 fn select_first(
760 &mut self,
761 project: Option<&Model<Project>>,
762 cx: &mut ViewContext<Editor>,
763 ) -> bool {
764 if self.visible() {
765 match self {
766 ContextMenu::Completions(menu) => menu.select_first(project, cx),
767 ContextMenu::CodeActions(menu) => menu.select_first(cx),
768 }
769 true
770 } else {
771 false
772 }
773 }
774
775 fn select_prev(
776 &mut self,
777 project: Option<&Model<Project>>,
778 cx: &mut ViewContext<Editor>,
779 ) -> bool {
780 if self.visible() {
781 match self {
782 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
783 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
784 }
785 true
786 } else {
787 false
788 }
789 }
790
791 fn select_next(
792 &mut self,
793 project: Option<&Model<Project>>,
794 cx: &mut ViewContext<Editor>,
795 ) -> bool {
796 if self.visible() {
797 match self {
798 ContextMenu::Completions(menu) => menu.select_next(project, cx),
799 ContextMenu::CodeActions(menu) => menu.select_next(cx),
800 }
801 true
802 } else {
803 false
804 }
805 }
806
807 fn select_last(
808 &mut self,
809 project: Option<&Model<Project>>,
810 cx: &mut ViewContext<Editor>,
811 ) -> bool {
812 if self.visible() {
813 match self {
814 ContextMenu::Completions(menu) => menu.select_last(project, cx),
815 ContextMenu::CodeActions(menu) => menu.select_last(cx),
816 }
817 true
818 } else {
819 false
820 }
821 }
822
823 fn visible(&self) -> bool {
824 match self {
825 ContextMenu::Completions(menu) => menu.visible(),
826 ContextMenu::CodeActions(menu) => menu.visible(),
827 }
828 }
829
830 fn render(
831 &self,
832 cursor_position: DisplayPoint,
833 style: &EditorStyle,
834 max_height: Pixels,
835 workspace: Option<WeakView<Workspace>>,
836 cx: &mut ViewContext<Editor>,
837 ) -> (ContextMenuOrigin, AnyElement) {
838 match self {
839 ContextMenu::Completions(menu) => (
840 ContextMenuOrigin::EditorPoint(cursor_position),
841 menu.render(style, max_height, workspace, cx),
842 ),
843 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
844 }
845 }
846}
847
848enum ContextMenuOrigin {
849 EditorPoint(DisplayPoint),
850 GutterIndicator(DisplayRow),
851}
852
853#[derive(Clone)]
854struct CompletionsMenu {
855 id: CompletionId,
856 initial_position: Anchor,
857 buffer: Model<Buffer>,
858 completions: Arc<RwLock<Box<[Completion]>>>,
859 match_candidates: Arc<[StringMatchCandidate]>,
860 matches: Arc<[StringMatch]>,
861 selected_item: usize,
862 scroll_handle: UniformListScrollHandle,
863 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
864}
865
866impl CompletionsMenu {
867 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
868 self.selected_item = 0;
869 self.scroll_handle.scroll_to_item(self.selected_item);
870 self.attempt_resolve_selected_completion_documentation(project, cx);
871 cx.notify();
872 }
873
874 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
875 if self.selected_item > 0 {
876 self.selected_item -= 1;
877 } else {
878 self.selected_item = self.matches.len() - 1;
879 }
880 self.scroll_handle.scroll_to_item(self.selected_item);
881 self.attempt_resolve_selected_completion_documentation(project, cx);
882 cx.notify();
883 }
884
885 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
886 if self.selected_item + 1 < self.matches.len() {
887 self.selected_item += 1;
888 } else {
889 self.selected_item = 0;
890 }
891 self.scroll_handle.scroll_to_item(self.selected_item);
892 self.attempt_resolve_selected_completion_documentation(project, cx);
893 cx.notify();
894 }
895
896 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
897 self.selected_item = self.matches.len() - 1;
898 self.scroll_handle.scroll_to_item(self.selected_item);
899 self.attempt_resolve_selected_completion_documentation(project, cx);
900 cx.notify();
901 }
902
903 fn pre_resolve_completion_documentation(
904 buffer: Model<Buffer>,
905 completions: Arc<RwLock<Box<[Completion]>>>,
906 matches: Arc<[StringMatch]>,
907 editor: &Editor,
908 cx: &mut ViewContext<Editor>,
909 ) -> Task<()> {
910 let settings = EditorSettings::get_global(cx);
911 if !settings.show_completion_documentation {
912 return Task::ready(());
913 }
914
915 let Some(provider) = editor.completion_provider.as_ref() else {
916 return Task::ready(());
917 };
918
919 let resolve_task = provider.resolve_completions(
920 buffer,
921 matches.iter().map(|m| m.candidate_id).collect(),
922 completions.clone(),
923 cx,
924 );
925
926 return cx.spawn(move |this, mut cx| async move {
927 if let Some(true) = resolve_task.await.log_err() {
928 this.update(&mut cx, |_, cx| cx.notify()).ok();
929 }
930 });
931 }
932
933 fn attempt_resolve_selected_completion_documentation(
934 &mut self,
935 project: Option<&Model<Project>>,
936 cx: &mut ViewContext<Editor>,
937 ) {
938 let settings = EditorSettings::get_global(cx);
939 if !settings.show_completion_documentation {
940 return;
941 }
942
943 let completion_index = self.matches[self.selected_item].candidate_id;
944 let Some(project) = project else {
945 return;
946 };
947
948 let resolve_task = project.update(cx, |project, cx| {
949 project.resolve_completions(
950 self.buffer.clone(),
951 vec![completion_index],
952 self.completions.clone(),
953 cx,
954 )
955 });
956
957 let delay_ms =
958 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
959 let delay = Duration::from_millis(delay_ms);
960
961 self.selected_completion_documentation_resolve_debounce
962 .lock()
963 .fire_new(delay, cx, |_, cx| {
964 cx.spawn(move |this, mut cx| async move {
965 if let Some(true) = resolve_task.await.log_err() {
966 this.update(&mut cx, |_, cx| cx.notify()).ok();
967 }
968 })
969 });
970 }
971
972 fn visible(&self) -> bool {
973 !self.matches.is_empty()
974 }
975
976 fn render(
977 &self,
978 style: &EditorStyle,
979 max_height: Pixels,
980 workspace: Option<WeakView<Workspace>>,
981 cx: &mut ViewContext<Editor>,
982 ) -> AnyElement {
983 let settings = EditorSettings::get_global(cx);
984 let show_completion_documentation = settings.show_completion_documentation;
985
986 let widest_completion_ix = self
987 .matches
988 .iter()
989 .enumerate()
990 .max_by_key(|(_, mat)| {
991 let completions = self.completions.read();
992 let completion = &completions[mat.candidate_id];
993 let documentation = &completion.documentation;
994
995 let mut len = completion.label.text.chars().count();
996 if let Some(Documentation::SingleLine(text)) = documentation {
997 if show_completion_documentation {
998 len += text.chars().count();
999 }
1000 }
1001
1002 len
1003 })
1004 .map(|(ix, _)| ix);
1005
1006 let completions = self.completions.clone();
1007 let matches = self.matches.clone();
1008 let selected_item = self.selected_item;
1009 let style = style.clone();
1010
1011 let multiline_docs = if show_completion_documentation {
1012 let mat = &self.matches[selected_item];
1013 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1014 Some(Documentation::MultiLinePlainText(text)) => {
1015 Some(div().child(SharedString::from(text.clone())))
1016 }
1017 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1018 Some(div().child(render_parsed_markdown(
1019 "completions_markdown",
1020 parsed,
1021 &style,
1022 workspace,
1023 cx,
1024 )))
1025 }
1026 _ => None,
1027 };
1028 multiline_docs.map(|div| {
1029 div.id("multiline_docs")
1030 .max_h(max_height)
1031 .flex_1()
1032 .px_1p5()
1033 .py_1()
1034 .min_w(px(260.))
1035 .max_w(px(640.))
1036 .w(px(500.))
1037 .overflow_y_scroll()
1038 .occlude()
1039 })
1040 } else {
1041 None
1042 };
1043
1044 let list = uniform_list(
1045 cx.view().clone(),
1046 "completions",
1047 matches.len(),
1048 move |_editor, range, cx| {
1049 let start_ix = range.start;
1050 let completions_guard = completions.read();
1051
1052 matches[range]
1053 .iter()
1054 .enumerate()
1055 .map(|(ix, mat)| {
1056 let item_ix = start_ix + ix;
1057 let candidate_id = mat.candidate_id;
1058 let completion = &completions_guard[candidate_id];
1059
1060 let documentation = if show_completion_documentation {
1061 &completion.documentation
1062 } else {
1063 &None
1064 };
1065
1066 let highlights = gpui::combine_highlights(
1067 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1068 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1069 |(range, mut highlight)| {
1070 // Ignore font weight for syntax highlighting, as we'll use it
1071 // for fuzzy matches.
1072 highlight.font_weight = None;
1073
1074 if completion.lsp_completion.deprecated.unwrap_or(false) {
1075 highlight.strikethrough = Some(StrikethroughStyle {
1076 thickness: 1.0.into(),
1077 ..Default::default()
1078 });
1079 highlight.color = Some(cx.theme().colors().text_muted);
1080 }
1081
1082 (range, highlight)
1083 },
1084 ),
1085 );
1086 let completion_label = StyledText::new(completion.label.text.clone())
1087 .with_highlights(&style.text, highlights);
1088 let documentation_label =
1089 if let Some(Documentation::SingleLine(text)) = documentation {
1090 if text.trim().is_empty() {
1091 None
1092 } else {
1093 Some(
1094 h_flex().ml_4().child(
1095 Label::new(text.clone())
1096 .size(LabelSize::Small)
1097 .color(Color::Muted),
1098 ),
1099 )
1100 }
1101 } else {
1102 None
1103 };
1104
1105 div().min_w(px(220.)).max_w(px(540.)).child(
1106 ListItem::new(mat.candidate_id)
1107 .inset(true)
1108 .selected(item_ix == selected_item)
1109 .on_click(cx.listener(move |editor, _event, cx| {
1110 cx.stop_propagation();
1111 if let Some(task) = editor.confirm_completion(
1112 &ConfirmCompletion {
1113 item_ix: Some(item_ix),
1114 },
1115 cx,
1116 ) {
1117 task.detach_and_log_err(cx)
1118 }
1119 }))
1120 .child(h_flex().overflow_hidden().child(completion_label))
1121 .end_slot::<Div>(documentation_label),
1122 )
1123 })
1124 .collect()
1125 },
1126 )
1127 .occlude()
1128 .max_h(max_height)
1129 .track_scroll(self.scroll_handle.clone())
1130 .with_width_from_item(widest_completion_ix)
1131 .with_sizing_behavior(ListSizingBehavior::Infer);
1132
1133 Popover::new()
1134 .child(list)
1135 .when_some(multiline_docs, |popover, multiline_docs| {
1136 popover.aside(multiline_docs)
1137 })
1138 .into_any_element()
1139 }
1140
1141 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1142 let mut matches = if let Some(query) = query {
1143 fuzzy::match_strings(
1144 &self.match_candidates,
1145 query,
1146 query.chars().any(|c| c.is_uppercase()),
1147 100,
1148 &Default::default(),
1149 executor,
1150 )
1151 .await
1152 } else {
1153 self.match_candidates
1154 .iter()
1155 .enumerate()
1156 .map(|(candidate_id, candidate)| StringMatch {
1157 candidate_id,
1158 score: Default::default(),
1159 positions: Default::default(),
1160 string: candidate.string.clone(),
1161 })
1162 .collect()
1163 };
1164
1165 // Remove all candidates where the query's start does not match the start of any word in the candidate
1166 if let Some(query) = query {
1167 if let Some(query_start) = query.chars().next() {
1168 matches.retain(|string_match| {
1169 split_words(&string_match.string).any(|word| {
1170 // Check that the first codepoint of the word as lowercase matches the first
1171 // codepoint of the query as lowercase
1172 word.chars()
1173 .flat_map(|codepoint| codepoint.to_lowercase())
1174 .zip(query_start.to_lowercase())
1175 .all(|(word_cp, query_cp)| word_cp == query_cp)
1176 })
1177 });
1178 }
1179 }
1180
1181 let completions = self.completions.read();
1182 matches.sort_unstable_by_key(|mat| {
1183 // We do want to strike a balance here between what the language server tells us
1184 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1185 // `Creat` and there is a local variable called `CreateComponent`).
1186 // So what we do is: we bucket all matches into two buckets
1187 // - Strong matches
1188 // - Weak matches
1189 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1190 // and the Weak matches are the rest.
1191 //
1192 // For the strong matches, we sort by the language-servers score first and for the weak
1193 // matches, we prefer our fuzzy finder first.
1194 //
1195 // The thinking behind that: it's useless to take the sort_text the language-server gives
1196 // us into account when it's obviously a bad match.
1197
1198 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1199 enum MatchScore<'a> {
1200 Strong {
1201 sort_text: Option<&'a str>,
1202 score: Reverse<OrderedFloat<f64>>,
1203 sort_key: (usize, &'a str),
1204 },
1205 Weak {
1206 score: Reverse<OrderedFloat<f64>>,
1207 sort_text: Option<&'a str>,
1208 sort_key: (usize, &'a str),
1209 },
1210 }
1211
1212 let completion = &completions[mat.candidate_id];
1213 let sort_key = completion.sort_key();
1214 let sort_text = completion.lsp_completion.sort_text.as_deref();
1215 let score = Reverse(OrderedFloat(mat.score));
1216
1217 if mat.score >= 0.2 {
1218 MatchScore::Strong {
1219 sort_text,
1220 score,
1221 sort_key,
1222 }
1223 } else {
1224 MatchScore::Weak {
1225 score,
1226 sort_text,
1227 sort_key,
1228 }
1229 }
1230 });
1231
1232 for mat in &mut matches {
1233 let completion = &completions[mat.candidate_id];
1234 mat.string.clone_from(&completion.label.text);
1235 for position in &mut mat.positions {
1236 *position += completion.label.filter_range.start;
1237 }
1238 }
1239 drop(completions);
1240
1241 self.matches = matches.into();
1242 self.selected_item = 0;
1243 }
1244}
1245
1246#[derive(Clone)]
1247struct CodeActionContents {
1248 tasks: Option<Arc<ResolvedTasks>>,
1249 actions: Option<Arc<[CodeAction]>>,
1250}
1251
1252impl CodeActionContents {
1253 fn len(&self) -> usize {
1254 match (&self.tasks, &self.actions) {
1255 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1256 (Some(tasks), None) => tasks.templates.len(),
1257 (None, Some(actions)) => actions.len(),
1258 (None, None) => 0,
1259 }
1260 }
1261
1262 fn is_empty(&self) -> bool {
1263 match (&self.tasks, &self.actions) {
1264 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1265 (Some(tasks), None) => tasks.templates.is_empty(),
1266 (None, Some(actions)) => actions.is_empty(),
1267 (None, None) => true,
1268 }
1269 }
1270
1271 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1272 self.tasks
1273 .iter()
1274 .flat_map(|tasks| {
1275 tasks
1276 .templates
1277 .iter()
1278 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1279 })
1280 .chain(self.actions.iter().flat_map(|actions| {
1281 actions
1282 .iter()
1283 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1284 }))
1285 }
1286 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1287 match (&self.tasks, &self.actions) {
1288 (Some(tasks), Some(actions)) => {
1289 if index < tasks.templates.len() {
1290 tasks
1291 .templates
1292 .get(index)
1293 .cloned()
1294 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1295 } else {
1296 actions
1297 .get(index - tasks.templates.len())
1298 .cloned()
1299 .map(CodeActionsItem::CodeAction)
1300 }
1301 }
1302 (Some(tasks), None) => tasks
1303 .templates
1304 .get(index)
1305 .cloned()
1306 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1307 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1308 (None, None) => None,
1309 }
1310 }
1311}
1312
1313#[allow(clippy::large_enum_variant)]
1314#[derive(Clone)]
1315enum CodeActionsItem {
1316 Task(TaskSourceKind, ResolvedTask),
1317 CodeAction(CodeAction),
1318}
1319
1320impl CodeActionsItem {
1321 fn as_task(&self) -> Option<&ResolvedTask> {
1322 let Self::Task(_, task) = self else {
1323 return None;
1324 };
1325 Some(task)
1326 }
1327 fn as_code_action(&self) -> Option<&CodeAction> {
1328 let Self::CodeAction(action) = self else {
1329 return None;
1330 };
1331 Some(action)
1332 }
1333 fn label(&self) -> String {
1334 match self {
1335 Self::CodeAction(action) => action.lsp_action.title.clone(),
1336 Self::Task(_, task) => task.resolved_label.clone(),
1337 }
1338 }
1339}
1340
1341struct CodeActionsMenu {
1342 actions: CodeActionContents,
1343 buffer: Model<Buffer>,
1344 selected_item: usize,
1345 scroll_handle: UniformListScrollHandle,
1346 deployed_from_indicator: Option<DisplayRow>,
1347}
1348
1349impl CodeActionsMenu {
1350 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1351 self.selected_item = 0;
1352 self.scroll_handle.scroll_to_item(self.selected_item);
1353 cx.notify()
1354 }
1355
1356 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1357 if self.selected_item > 0 {
1358 self.selected_item -= 1;
1359 } else {
1360 self.selected_item = self.actions.len() - 1;
1361 }
1362 self.scroll_handle.scroll_to_item(self.selected_item);
1363 cx.notify();
1364 }
1365
1366 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1367 if self.selected_item + 1 < self.actions.len() {
1368 self.selected_item += 1;
1369 } else {
1370 self.selected_item = 0;
1371 }
1372 self.scroll_handle.scroll_to_item(self.selected_item);
1373 cx.notify();
1374 }
1375
1376 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1377 self.selected_item = self.actions.len() - 1;
1378 self.scroll_handle.scroll_to_item(self.selected_item);
1379 cx.notify()
1380 }
1381
1382 fn visible(&self) -> bool {
1383 !self.actions.is_empty()
1384 }
1385
1386 fn render(
1387 &self,
1388 cursor_position: DisplayPoint,
1389 _style: &EditorStyle,
1390 max_height: Pixels,
1391 cx: &mut ViewContext<Editor>,
1392 ) -> (ContextMenuOrigin, AnyElement) {
1393 let actions = self.actions.clone();
1394 let selected_item = self.selected_item;
1395 let element = uniform_list(
1396 cx.view().clone(),
1397 "code_actions_menu",
1398 self.actions.len(),
1399 move |_this, range, cx| {
1400 actions
1401 .iter()
1402 .skip(range.start)
1403 .take(range.end - range.start)
1404 .enumerate()
1405 .map(|(ix, action)| {
1406 let item_ix = range.start + ix;
1407 let selected = selected_item == item_ix;
1408 let colors = cx.theme().colors();
1409 div()
1410 .px_2()
1411 .text_color(colors.text)
1412 .when(selected, |style| {
1413 style
1414 .bg(colors.element_active)
1415 .text_color(colors.text_accent)
1416 })
1417 .hover(|style| {
1418 style
1419 .bg(colors.element_hover)
1420 .text_color(colors.text_accent)
1421 })
1422 .whitespace_nowrap()
1423 .when_some(action.as_code_action(), |this, action| {
1424 this.on_mouse_down(
1425 MouseButton::Left,
1426 cx.listener(move |editor, _, cx| {
1427 cx.stop_propagation();
1428 if let Some(task) = editor.confirm_code_action(
1429 &ConfirmCodeAction {
1430 item_ix: Some(item_ix),
1431 },
1432 cx,
1433 ) {
1434 task.detach_and_log_err(cx)
1435 }
1436 }),
1437 )
1438 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1439 .child(SharedString::from(action.lsp_action.title.clone()))
1440 })
1441 .when_some(action.as_task(), |this, task| {
1442 this.on_mouse_down(
1443 MouseButton::Left,
1444 cx.listener(move |editor, _, cx| {
1445 cx.stop_propagation();
1446 if let Some(task) = editor.confirm_code_action(
1447 &ConfirmCodeAction {
1448 item_ix: Some(item_ix),
1449 },
1450 cx,
1451 ) {
1452 task.detach_and_log_err(cx)
1453 }
1454 }),
1455 )
1456 .child(SharedString::from(task.resolved_label.clone()))
1457 })
1458 })
1459 .collect()
1460 },
1461 )
1462 .elevation_1(cx)
1463 .px_2()
1464 .py_1()
1465 .max_h(max_height)
1466 .occlude()
1467 .track_scroll(self.scroll_handle.clone())
1468 .with_width_from_item(
1469 self.actions
1470 .iter()
1471 .enumerate()
1472 .max_by_key(|(_, action)| match action {
1473 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1474 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1475 })
1476 .map(|(ix, _)| ix),
1477 )
1478 .with_sizing_behavior(ListSizingBehavior::Infer)
1479 .into_any_element();
1480
1481 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1482 ContextMenuOrigin::GutterIndicator(row)
1483 } else {
1484 ContextMenuOrigin::EditorPoint(cursor_position)
1485 };
1486
1487 (cursor_position, element)
1488 }
1489}
1490
1491#[derive(Debug)]
1492struct ActiveDiagnosticGroup {
1493 primary_range: Range<Anchor>,
1494 primary_message: String,
1495 group_id: usize,
1496 blocks: HashMap<BlockId, Diagnostic>,
1497 is_valid: bool,
1498}
1499
1500#[derive(Serialize, Deserialize)]
1501pub struct ClipboardSelection {
1502 pub len: usize,
1503 pub is_entire_line: bool,
1504 pub first_line_indent: u32,
1505}
1506
1507#[derive(Debug)]
1508pub(crate) struct NavigationData {
1509 cursor_anchor: Anchor,
1510 cursor_position: Point,
1511 scroll_anchor: ScrollAnchor,
1512 scroll_top_row: u32,
1513}
1514
1515enum GotoDefinitionKind {
1516 Symbol,
1517 Type,
1518 Implementation,
1519}
1520
1521#[derive(Debug, Clone)]
1522enum InlayHintRefreshReason {
1523 Toggle(bool),
1524 SettingsChange(InlayHintSettings),
1525 NewLinesShown,
1526 BufferEdited(HashSet<Arc<Language>>),
1527 RefreshRequested,
1528 ExcerptsRemoved(Vec<ExcerptId>),
1529}
1530
1531impl InlayHintRefreshReason {
1532 fn description(&self) -> &'static str {
1533 match self {
1534 Self::Toggle(_) => "toggle",
1535 Self::SettingsChange(_) => "settings change",
1536 Self::NewLinesShown => "new lines shown",
1537 Self::BufferEdited(_) => "buffer edited",
1538 Self::RefreshRequested => "refresh requested",
1539 Self::ExcerptsRemoved(_) => "excerpts removed",
1540 }
1541 }
1542}
1543
1544impl Editor {
1545 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1546 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1547 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1548 Self::new(EditorMode::SingleLine, buffer, None, false, cx)
1549 }
1550
1551 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1552 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1553 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1554 Self::new(EditorMode::Full, buffer, None, false, cx)
1555 }
1556
1557 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1558 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1559 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1560 Self::new(
1561 EditorMode::AutoHeight { max_lines },
1562 buffer,
1563 None,
1564 false,
1565 cx,
1566 )
1567 }
1568
1569 pub fn for_buffer(
1570 buffer: Model<Buffer>,
1571 project: Option<Model<Project>>,
1572 cx: &mut ViewContext<Self>,
1573 ) -> Self {
1574 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1575 Self::new(EditorMode::Full, buffer, project, false, cx)
1576 }
1577
1578 pub fn for_multibuffer(
1579 buffer: Model<MultiBuffer>,
1580 project: Option<Model<Project>>,
1581 show_excerpt_controls: bool,
1582 cx: &mut ViewContext<Self>,
1583 ) -> Self {
1584 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1585 }
1586
1587 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1588 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1589 let mut clone = Self::new(
1590 self.mode,
1591 self.buffer.clone(),
1592 self.project.clone(),
1593 show_excerpt_controls,
1594 cx,
1595 );
1596 self.display_map.update(cx, |display_map, cx| {
1597 let snapshot = display_map.snapshot(cx);
1598 clone.display_map.update(cx, |display_map, cx| {
1599 display_map.set_state(&snapshot, cx);
1600 });
1601 });
1602 clone.selections.clone_state(&self.selections);
1603 clone.scroll_manager.clone_state(&self.scroll_manager);
1604 clone.searchable = self.searchable;
1605 clone
1606 }
1607
1608 fn new(
1609 mode: EditorMode,
1610 buffer: Model<MultiBuffer>,
1611 project: Option<Model<Project>>,
1612 show_excerpt_controls: bool,
1613 cx: &mut ViewContext<Self>,
1614 ) -> Self {
1615 let style = cx.text_style();
1616 let font_size = style.font_size.to_pixels(cx.rem_size());
1617 let editor = cx.view().downgrade();
1618 let fold_placeholder = FoldPlaceholder {
1619 constrain_width: true,
1620 render: Arc::new(move |fold_id, fold_range, cx| {
1621 let editor = editor.clone();
1622 div()
1623 .id(fold_id)
1624 .bg(cx.theme().colors().ghost_element_background)
1625 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1626 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1627 .rounded_sm()
1628 .size_full()
1629 .cursor_pointer()
1630 .child("⋯")
1631 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1632 .on_click(move |_, cx| {
1633 editor
1634 .update(cx, |editor, cx| {
1635 editor.unfold_ranges(
1636 [fold_range.start..fold_range.end],
1637 true,
1638 false,
1639 cx,
1640 );
1641 cx.stop_propagation();
1642 })
1643 .ok();
1644 })
1645 .into_any()
1646 }),
1647 merge_adjacent: true,
1648 };
1649 let display_map = cx.new_model(|cx| {
1650 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1651
1652 DisplayMap::new(
1653 buffer.clone(),
1654 style.font(),
1655 font_size,
1656 None,
1657 show_excerpt_controls,
1658 file_header_size,
1659 1,
1660 1,
1661 fold_placeholder,
1662 cx,
1663 )
1664 });
1665
1666 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1667
1668 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1669
1670 let soft_wrap_mode_override =
1671 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1672
1673 let mut project_subscriptions = Vec::new();
1674 if mode == EditorMode::Full {
1675 if let Some(project) = project.as_ref() {
1676 if buffer.read(cx).is_singleton() {
1677 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1678 cx.emit(EditorEvent::TitleChanged);
1679 }));
1680 }
1681 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1682 if let project::Event::RefreshInlayHints = event {
1683 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1684 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1685 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1686 let focus_handle = editor.focus_handle(cx);
1687 if focus_handle.is_focused(cx) {
1688 let snapshot = buffer.read(cx).snapshot();
1689 for (range, snippet) in snippet_edits {
1690 let editor_range =
1691 language::range_from_lsp(*range).to_offset(&snapshot);
1692 editor
1693 .insert_snippet(&[editor_range], snippet.clone(), cx)
1694 .ok();
1695 }
1696 }
1697 }
1698 }
1699 }));
1700 let task_inventory = project.read(cx).task_inventory().clone();
1701 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1702 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1703 }));
1704 }
1705 }
1706
1707 let inlay_hint_settings = inlay_hint_settings(
1708 selections.newest_anchor().head(),
1709 &buffer.read(cx).snapshot(cx),
1710 cx,
1711 );
1712 let focus_handle = cx.focus_handle();
1713 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1714 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1715
1716 let show_indent_guides = if mode == EditorMode::SingleLine {
1717 Some(false)
1718 } else {
1719 None
1720 };
1721
1722 let mut this = Self {
1723 focus_handle,
1724 buffer: buffer.clone(),
1725 display_map: display_map.clone(),
1726 selections,
1727 scroll_manager: ScrollManager::new(cx),
1728 columnar_selection_tail: None,
1729 add_selections_state: None,
1730 select_next_state: None,
1731 select_prev_state: None,
1732 selection_history: Default::default(),
1733 autoclose_regions: Default::default(),
1734 snippet_stack: Default::default(),
1735 select_larger_syntax_node_stack: Vec::new(),
1736 ime_transaction: Default::default(),
1737 active_diagnostics: None,
1738 soft_wrap_mode_override,
1739 completion_provider: project.clone().map(|project| Box::new(project) as _),
1740 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1741 project,
1742 blink_manager: blink_manager.clone(),
1743 show_local_selections: true,
1744 mode,
1745 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1746 show_gutter: mode == EditorMode::Full,
1747 show_line_numbers: None,
1748 show_git_diff_gutter: None,
1749 show_code_actions: None,
1750 show_wrap_guides: None,
1751 show_indent_guides,
1752 placeholder_text: None,
1753 highlight_order: 0,
1754 highlighted_rows: HashMap::default(),
1755 background_highlights: Default::default(),
1756 scrollbar_marker_state: ScrollbarMarkerState::default(),
1757 active_indent_guides_state: ActiveIndentGuidesState::default(),
1758 nav_history: None,
1759 context_menu: RwLock::new(None),
1760 mouse_context_menu: None,
1761 completion_tasks: Default::default(),
1762 find_all_references_task_sources: Vec::new(),
1763 next_completion_id: 0,
1764 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1765 next_inlay_id: 0,
1766 available_code_actions: Default::default(),
1767 code_actions_task: Default::default(),
1768 document_highlights_task: Default::default(),
1769 pending_rename: Default::default(),
1770 searchable: true,
1771 cursor_shape: Default::default(),
1772 current_line_highlight: EditorSettings::get_global(cx).current_line_highlight,
1773 autoindent_mode: Some(AutoindentMode::EachLine),
1774 collapse_matches: false,
1775 workspace: None,
1776 keymap_context_layers: Default::default(),
1777 input_enabled: true,
1778 use_modal_editing: mode == EditorMode::Full,
1779 read_only: false,
1780 use_autoclose: true,
1781 auto_replace_emoji_shortcode: false,
1782 leader_peer_id: None,
1783 remote_id: None,
1784 hover_state: Default::default(),
1785 hovered_link_state: Default::default(),
1786 inline_completion_provider: None,
1787 active_inline_completion: None,
1788 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1789 expanded_hunks: ExpandedHunks::default(),
1790 gutter_hovered: false,
1791 pixel_position_of_newest_cursor: None,
1792 last_bounds: None,
1793 expect_bounds_change: None,
1794 gutter_dimensions: GutterDimensions::default(),
1795 style: None,
1796 show_cursor_names: false,
1797 hovered_cursors: Default::default(),
1798 editor_actions: Default::default(),
1799 vim_replace_map: Default::default(),
1800 show_inline_completions: mode == EditorMode::Full,
1801 custom_context_menu: None,
1802 show_git_blame_gutter: false,
1803 show_git_blame_inline: false,
1804 show_git_blame_inline_delay_task: None,
1805 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1806 blame: None,
1807 blame_subscription: None,
1808 tasks: Default::default(),
1809 _subscriptions: vec![
1810 cx.observe(&buffer, Self::on_buffer_changed),
1811 cx.subscribe(&buffer, Self::on_buffer_event),
1812 cx.observe(&display_map, Self::on_display_map_changed),
1813 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1814 cx.observe_global::<SettingsStore>(Self::settings_changed),
1815 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1816 cx.observe_window_activation(|editor, cx| {
1817 let active = cx.is_window_active();
1818 editor.blink_manager.update(cx, |blink_manager, cx| {
1819 if active {
1820 blink_manager.enable(cx);
1821 } else {
1822 blink_manager.show_cursor(cx);
1823 blink_manager.disable(cx);
1824 }
1825 });
1826 }),
1827 ],
1828 tasks_update_task: None,
1829 };
1830 this.tasks_update_task = Some(this.refresh_runnables(cx));
1831 this._subscriptions.extend(project_subscriptions);
1832
1833 this.end_selection(cx);
1834 this.scroll_manager.show_scrollbar(cx);
1835
1836 if mode == EditorMode::Full {
1837 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1838 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1839
1840 if this.git_blame_inline_enabled {
1841 this.git_blame_inline_enabled = true;
1842 this.start_git_blame_inline(false, cx);
1843 }
1844 }
1845
1846 this.report_editor_event("open", None, cx);
1847 this
1848 }
1849
1850 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1851 self.mouse_context_menu
1852 .as_ref()
1853 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1854 }
1855
1856 fn key_context(&self, cx: &AppContext) -> KeyContext {
1857 let mut key_context = KeyContext::new_with_defaults();
1858 key_context.add("Editor");
1859 let mode = match self.mode {
1860 EditorMode::SingleLine => "single_line",
1861 EditorMode::AutoHeight { .. } => "auto_height",
1862 EditorMode::Full => "full",
1863 };
1864 key_context.set("mode", mode);
1865 if self.pending_rename.is_some() {
1866 key_context.add("renaming");
1867 }
1868 if self.context_menu_visible() {
1869 match self.context_menu.read().as_ref() {
1870 Some(ContextMenu::Completions(_)) => {
1871 key_context.add("menu");
1872 key_context.add("showing_completions")
1873 }
1874 Some(ContextMenu::CodeActions(_)) => {
1875 key_context.add("menu");
1876 key_context.add("showing_code_actions")
1877 }
1878 None => {}
1879 }
1880 }
1881
1882 for layer in self.keymap_context_layers.values() {
1883 key_context.extend(layer);
1884 }
1885
1886 if let Some(extension) = self
1887 .buffer
1888 .read(cx)
1889 .as_singleton()
1890 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1891 {
1892 key_context.set("extension", extension.to_string());
1893 }
1894
1895 if self.has_active_inline_completion(cx) {
1896 key_context.add("copilot_suggestion");
1897 key_context.add("inline_completion");
1898 }
1899
1900 key_context
1901 }
1902
1903 pub fn new_file(
1904 workspace: &mut Workspace,
1905 _: &workspace::NewFile,
1906 cx: &mut ViewContext<Workspace>,
1907 ) {
1908 let project = workspace.project().clone();
1909 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1910
1911 cx.spawn(|workspace, mut cx| async move {
1912 let buffer = create.await?;
1913 workspace.update(&mut cx, |workspace, cx| {
1914 workspace.add_item_to_active_pane(
1915 Box::new(
1916 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1917 ),
1918 None,
1919 cx,
1920 )
1921 })
1922 })
1923 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1924 ErrorCode::RemoteUpgradeRequired => Some(format!(
1925 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1926 e.error_tag("required").unwrap_or("the latest version")
1927 )),
1928 _ => None,
1929 });
1930 }
1931
1932 pub fn new_file_in_direction(
1933 workspace: &mut Workspace,
1934 action: &workspace::NewFileInDirection,
1935 cx: &mut ViewContext<Workspace>,
1936 ) {
1937 let project = workspace.project().clone();
1938 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1939 let direction = action.0;
1940
1941 cx.spawn(|workspace, mut cx| async move {
1942 let buffer = create.await?;
1943 workspace.update(&mut cx, move |workspace, cx| {
1944 workspace.split_item(
1945 direction,
1946 Box::new(
1947 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1948 ),
1949 cx,
1950 )
1951 })?;
1952 anyhow::Ok(())
1953 })
1954 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1955 ErrorCode::RemoteUpgradeRequired => Some(format!(
1956 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1957 e.error_tag("required").unwrap_or("the latest version")
1958 )),
1959 _ => None,
1960 });
1961 }
1962
1963 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1964 self.buffer.read(cx).replica_id()
1965 }
1966
1967 pub fn leader_peer_id(&self) -> Option<PeerId> {
1968 self.leader_peer_id
1969 }
1970
1971 pub fn buffer(&self) -> &Model<MultiBuffer> {
1972 &self.buffer
1973 }
1974
1975 pub fn workspace(&self) -> Option<View<Workspace>> {
1976 self.workspace.as_ref()?.0.upgrade()
1977 }
1978
1979 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1980 self.buffer().read(cx).title(cx)
1981 }
1982
1983 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1984 EditorSnapshot {
1985 mode: self.mode,
1986 show_gutter: self.show_gutter,
1987 show_line_numbers: self.show_line_numbers,
1988 show_git_diff_gutter: self.show_git_diff_gutter,
1989 show_code_actions: self.show_code_actions,
1990 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1991 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1992 scroll_anchor: self.scroll_manager.anchor(),
1993 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1994 placeholder_text: self.placeholder_text.clone(),
1995 is_focused: self.focus_handle.is_focused(cx),
1996 current_line_highlight: self.current_line_highlight,
1997 gutter_hovered: self.gutter_hovered,
1998 }
1999 }
2000
2001 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2002 self.buffer.read(cx).language_at(point, cx)
2003 }
2004
2005 pub fn file_at<T: ToOffset>(
2006 &self,
2007 point: T,
2008 cx: &AppContext,
2009 ) -> Option<Arc<dyn language::File>> {
2010 self.buffer.read(cx).read(cx).file_at(point).cloned()
2011 }
2012
2013 pub fn active_excerpt(
2014 &self,
2015 cx: &AppContext,
2016 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2017 self.buffer
2018 .read(cx)
2019 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2020 }
2021
2022 pub fn mode(&self) -> EditorMode {
2023 self.mode
2024 }
2025
2026 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2027 self.collaboration_hub.as_deref()
2028 }
2029
2030 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2031 self.collaboration_hub = Some(hub);
2032 }
2033
2034 pub fn set_custom_context_menu(
2035 &mut self,
2036 f: impl 'static
2037 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2038 ) {
2039 self.custom_context_menu = Some(Box::new(f))
2040 }
2041
2042 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2043 self.completion_provider = Some(provider);
2044 }
2045
2046 pub fn set_inline_completion_provider<T>(
2047 &mut self,
2048 provider: Option<Model<T>>,
2049 cx: &mut ViewContext<Self>,
2050 ) where
2051 T: InlineCompletionProvider,
2052 {
2053 self.inline_completion_provider =
2054 provider.map(|provider| RegisteredInlineCompletionProvider {
2055 _subscription: cx.observe(&provider, |this, _, cx| {
2056 if this.focus_handle.is_focused(cx) {
2057 this.update_visible_inline_completion(cx);
2058 }
2059 }),
2060 provider: Arc::new(provider),
2061 });
2062 self.refresh_inline_completion(false, cx);
2063 }
2064
2065 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
2066 self.placeholder_text.as_deref()
2067 }
2068
2069 pub fn set_placeholder_text(
2070 &mut self,
2071 placeholder_text: impl Into<Arc<str>>,
2072 cx: &mut ViewContext<Self>,
2073 ) {
2074 let placeholder_text = Some(placeholder_text.into());
2075 if self.placeholder_text != placeholder_text {
2076 self.placeholder_text = placeholder_text;
2077 cx.notify();
2078 }
2079 }
2080
2081 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2082 self.cursor_shape = cursor_shape;
2083 cx.notify();
2084 }
2085
2086 pub fn set_current_line_highlight(&mut self, current_line_highlight: CurrentLineHighlight) {
2087 self.current_line_highlight = current_line_highlight;
2088 }
2089
2090 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2091 self.collapse_matches = collapse_matches;
2092 }
2093
2094 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2095 if self.collapse_matches {
2096 return range.start..range.start;
2097 }
2098 range.clone()
2099 }
2100
2101 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2102 if self.display_map.read(cx).clip_at_line_ends != clip {
2103 self.display_map
2104 .update(cx, |map, _| map.clip_at_line_ends = clip);
2105 }
2106 }
2107
2108 pub fn set_keymap_context_layer<Tag: 'static>(
2109 &mut self,
2110 context: KeyContext,
2111 cx: &mut ViewContext<Self>,
2112 ) {
2113 self.keymap_context_layers
2114 .insert(TypeId::of::<Tag>(), context);
2115 cx.notify();
2116 }
2117
2118 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2119 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2120 cx.notify();
2121 }
2122
2123 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2124 self.input_enabled = input_enabled;
2125 }
2126
2127 pub fn set_autoindent(&mut self, autoindent: bool) {
2128 if autoindent {
2129 self.autoindent_mode = Some(AutoindentMode::EachLine);
2130 } else {
2131 self.autoindent_mode = None;
2132 }
2133 }
2134
2135 pub fn read_only(&self, cx: &AppContext) -> bool {
2136 self.read_only || self.buffer.read(cx).read_only()
2137 }
2138
2139 pub fn set_read_only(&mut self, read_only: bool) {
2140 self.read_only = read_only;
2141 }
2142
2143 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2144 self.use_autoclose = autoclose;
2145 }
2146
2147 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2148 self.auto_replace_emoji_shortcode = auto_replace;
2149 }
2150
2151 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2152 self.show_inline_completions = show_inline_completions;
2153 }
2154
2155 pub fn set_use_modal_editing(&mut self, to: bool) {
2156 self.use_modal_editing = to;
2157 }
2158
2159 pub fn use_modal_editing(&self) -> bool {
2160 self.use_modal_editing
2161 }
2162
2163 fn selections_did_change(
2164 &mut self,
2165 local: bool,
2166 old_cursor_position: &Anchor,
2167 show_completions: bool,
2168 cx: &mut ViewContext<Self>,
2169 ) {
2170 // Copy selections to primary selection buffer
2171 #[cfg(target_os = "linux")]
2172 if local {
2173 let selections = self.selections.all::<usize>(cx);
2174 let buffer_handle = self.buffer.read(cx).read(cx);
2175
2176 let mut text = String::new();
2177 for (index, selection) in selections.iter().enumerate() {
2178 let text_for_selection = buffer_handle
2179 .text_for_range(selection.start..selection.end)
2180 .collect::<String>();
2181
2182 text.push_str(&text_for_selection);
2183 if index != selections.len() - 1 {
2184 text.push('\n');
2185 }
2186 }
2187
2188 if !text.is_empty() {
2189 cx.write_to_primary(ClipboardItem::new(text));
2190 }
2191 }
2192
2193 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2194 self.buffer.update(cx, |buffer, cx| {
2195 buffer.set_active_selections(
2196 &self.selections.disjoint_anchors(),
2197 self.selections.line_mode,
2198 self.cursor_shape,
2199 cx,
2200 )
2201 });
2202 }
2203
2204 let display_map = self
2205 .display_map
2206 .update(cx, |display_map, cx| display_map.snapshot(cx));
2207 let buffer = &display_map.buffer_snapshot;
2208 self.add_selections_state = None;
2209 self.select_next_state = None;
2210 self.select_prev_state = None;
2211 self.select_larger_syntax_node_stack.clear();
2212 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2213 self.snippet_stack
2214 .invalidate(&self.selections.disjoint_anchors(), buffer);
2215 self.take_rename(false, cx);
2216
2217 let new_cursor_position = self.selections.newest_anchor().head();
2218
2219 self.push_to_nav_history(
2220 *old_cursor_position,
2221 Some(new_cursor_position.to_point(buffer)),
2222 cx,
2223 );
2224
2225 if local {
2226 let new_cursor_position = self.selections.newest_anchor().head();
2227 let mut context_menu = self.context_menu.write();
2228 let completion_menu = match context_menu.as_ref() {
2229 Some(ContextMenu::Completions(menu)) => Some(menu),
2230
2231 _ => {
2232 *context_menu = None;
2233 None
2234 }
2235 };
2236
2237 if let Some(completion_menu) = completion_menu {
2238 let cursor_position = new_cursor_position.to_offset(buffer);
2239 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2240 if kind == Some(CharKind::Word)
2241 && word_range.to_inclusive().contains(&cursor_position)
2242 {
2243 let mut completion_menu = completion_menu.clone();
2244 drop(context_menu);
2245
2246 let query = Self::completion_query(buffer, cursor_position);
2247 cx.spawn(move |this, mut cx| async move {
2248 completion_menu
2249 .filter(query.as_deref(), cx.background_executor().clone())
2250 .await;
2251
2252 this.update(&mut cx, |this, cx| {
2253 let mut context_menu = this.context_menu.write();
2254 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2255 return;
2256 };
2257
2258 if menu.id > completion_menu.id {
2259 return;
2260 }
2261
2262 *context_menu = Some(ContextMenu::Completions(completion_menu));
2263 drop(context_menu);
2264 cx.notify();
2265 })
2266 })
2267 .detach();
2268
2269 if show_completions {
2270 self.show_completions(&ShowCompletions, cx);
2271 }
2272 } else {
2273 drop(context_menu);
2274 self.hide_context_menu(cx);
2275 }
2276 } else {
2277 drop(context_menu);
2278 }
2279
2280 hide_hover(self, cx);
2281
2282 if old_cursor_position.to_display_point(&display_map).row()
2283 != new_cursor_position.to_display_point(&display_map).row()
2284 {
2285 self.available_code_actions.take();
2286 }
2287 self.refresh_code_actions(cx);
2288 self.refresh_document_highlights(cx);
2289 refresh_matching_bracket_highlights(self, cx);
2290 self.discard_inline_completion(false, cx);
2291 if self.git_blame_inline_enabled {
2292 self.start_inline_blame_timer(cx);
2293 }
2294 }
2295
2296 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2297 cx.emit(EditorEvent::SelectionsChanged { local });
2298
2299 if self.selections.disjoint_anchors().len() == 1 {
2300 cx.emit(SearchEvent::ActiveMatchChanged)
2301 }
2302
2303 cx.notify();
2304 }
2305
2306 pub fn change_selections<R>(
2307 &mut self,
2308 autoscroll: Option<Autoscroll>,
2309 cx: &mut ViewContext<Self>,
2310 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2311 ) -> R {
2312 self.change_selections_inner(autoscroll, true, cx, change)
2313 }
2314
2315 pub fn change_selections_inner<R>(
2316 &mut self,
2317 autoscroll: Option<Autoscroll>,
2318 request_completions: bool,
2319 cx: &mut ViewContext<Self>,
2320 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2321 ) -> R {
2322 let old_cursor_position = self.selections.newest_anchor().head();
2323 self.push_to_selection_history();
2324
2325 let (changed, result) = self.selections.change_with(cx, change);
2326
2327 if changed {
2328 if let Some(autoscroll) = autoscroll {
2329 self.request_autoscroll(autoscroll, cx);
2330 }
2331 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2332 }
2333
2334 result
2335 }
2336
2337 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2338 where
2339 I: IntoIterator<Item = (Range<S>, T)>,
2340 S: ToOffset,
2341 T: Into<Arc<str>>,
2342 {
2343 if self.read_only(cx) {
2344 return;
2345 }
2346
2347 self.buffer
2348 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2349 }
2350
2351 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2352 where
2353 I: IntoIterator<Item = (Range<S>, T)>,
2354 S: ToOffset,
2355 T: Into<Arc<str>>,
2356 {
2357 if self.read_only(cx) {
2358 return;
2359 }
2360
2361 self.buffer.update(cx, |buffer, cx| {
2362 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2363 });
2364 }
2365
2366 pub fn edit_with_block_indent<I, S, T>(
2367 &mut self,
2368 edits: I,
2369 original_indent_columns: Vec<u32>,
2370 cx: &mut ViewContext<Self>,
2371 ) where
2372 I: IntoIterator<Item = (Range<S>, T)>,
2373 S: ToOffset,
2374 T: Into<Arc<str>>,
2375 {
2376 if self.read_only(cx) {
2377 return;
2378 }
2379
2380 self.buffer.update(cx, |buffer, cx| {
2381 buffer.edit(
2382 edits,
2383 Some(AutoindentMode::Block {
2384 original_indent_columns,
2385 }),
2386 cx,
2387 )
2388 });
2389 }
2390
2391 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2392 self.hide_context_menu(cx);
2393
2394 match phase {
2395 SelectPhase::Begin {
2396 position,
2397 add,
2398 click_count,
2399 } => self.begin_selection(position, add, click_count, cx),
2400 SelectPhase::BeginColumnar {
2401 position,
2402 goal_column,
2403 reset,
2404 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2405 SelectPhase::Extend {
2406 position,
2407 click_count,
2408 } => self.extend_selection(position, click_count, cx),
2409 SelectPhase::Update {
2410 position,
2411 goal_column,
2412 scroll_delta,
2413 } => self.update_selection(position, goal_column, scroll_delta, cx),
2414 SelectPhase::End => self.end_selection(cx),
2415 }
2416 }
2417
2418 fn extend_selection(
2419 &mut self,
2420 position: DisplayPoint,
2421 click_count: usize,
2422 cx: &mut ViewContext<Self>,
2423 ) {
2424 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2425 let tail = self.selections.newest::<usize>(cx).tail();
2426 self.begin_selection(position, false, click_count, cx);
2427
2428 let position = position.to_offset(&display_map, Bias::Left);
2429 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2430
2431 let mut pending_selection = self
2432 .selections
2433 .pending_anchor()
2434 .expect("extend_selection not called with pending selection");
2435 if position >= tail {
2436 pending_selection.start = tail_anchor;
2437 } else {
2438 pending_selection.end = tail_anchor;
2439 pending_selection.reversed = true;
2440 }
2441
2442 let mut pending_mode = self.selections.pending_mode().unwrap();
2443 match &mut pending_mode {
2444 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2445 _ => {}
2446 }
2447
2448 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2449 s.set_pending(pending_selection, pending_mode)
2450 });
2451 }
2452
2453 fn begin_selection(
2454 &mut self,
2455 position: DisplayPoint,
2456 add: bool,
2457 click_count: usize,
2458 cx: &mut ViewContext<Self>,
2459 ) {
2460 if !self.focus_handle.is_focused(cx) {
2461 cx.focus(&self.focus_handle);
2462 }
2463
2464 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2465 let buffer = &display_map.buffer_snapshot;
2466 let newest_selection = self.selections.newest_anchor().clone();
2467 let position = display_map.clip_point(position, Bias::Left);
2468
2469 let start;
2470 let end;
2471 let mode;
2472 let auto_scroll;
2473 match click_count {
2474 1 => {
2475 start = buffer.anchor_before(position.to_point(&display_map));
2476 end = start;
2477 mode = SelectMode::Character;
2478 auto_scroll = true;
2479 }
2480 2 => {
2481 let range = movement::surrounding_word(&display_map, position);
2482 start = buffer.anchor_before(range.start.to_point(&display_map));
2483 end = buffer.anchor_before(range.end.to_point(&display_map));
2484 mode = SelectMode::Word(start..end);
2485 auto_scroll = true;
2486 }
2487 3 => {
2488 let position = display_map
2489 .clip_point(position, Bias::Left)
2490 .to_point(&display_map);
2491 let line_start = display_map.prev_line_boundary(position).0;
2492 let next_line_start = buffer.clip_point(
2493 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2494 Bias::Left,
2495 );
2496 start = buffer.anchor_before(line_start);
2497 end = buffer.anchor_before(next_line_start);
2498 mode = SelectMode::Line(start..end);
2499 auto_scroll = true;
2500 }
2501 _ => {
2502 start = buffer.anchor_before(0);
2503 end = buffer.anchor_before(buffer.len());
2504 mode = SelectMode::All;
2505 auto_scroll = false;
2506 }
2507 }
2508
2509 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2510 if !add {
2511 s.clear_disjoint();
2512 } else if click_count > 1 {
2513 s.delete(newest_selection.id)
2514 }
2515
2516 s.set_pending_anchor_range(start..end, mode);
2517 });
2518 }
2519
2520 fn begin_columnar_selection(
2521 &mut self,
2522 position: DisplayPoint,
2523 goal_column: u32,
2524 reset: bool,
2525 cx: &mut ViewContext<Self>,
2526 ) {
2527 if !self.focus_handle.is_focused(cx) {
2528 cx.focus(&self.focus_handle);
2529 }
2530
2531 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2532
2533 if reset {
2534 let pointer_position = display_map
2535 .buffer_snapshot
2536 .anchor_before(position.to_point(&display_map));
2537
2538 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2539 s.clear_disjoint();
2540 s.set_pending_anchor_range(
2541 pointer_position..pointer_position,
2542 SelectMode::Character,
2543 );
2544 });
2545 }
2546
2547 let tail = self.selections.newest::<Point>(cx).tail();
2548 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2549
2550 if !reset {
2551 self.select_columns(
2552 tail.to_display_point(&display_map),
2553 position,
2554 goal_column,
2555 &display_map,
2556 cx,
2557 );
2558 }
2559 }
2560
2561 fn update_selection(
2562 &mut self,
2563 position: DisplayPoint,
2564 goal_column: u32,
2565 scroll_delta: gpui::Point<f32>,
2566 cx: &mut ViewContext<Self>,
2567 ) {
2568 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2569
2570 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2571 let tail = tail.to_display_point(&display_map);
2572 self.select_columns(tail, position, goal_column, &display_map, cx);
2573 } else if let Some(mut pending) = self.selections.pending_anchor() {
2574 let buffer = self.buffer.read(cx).snapshot(cx);
2575 let head;
2576 let tail;
2577 let mode = self.selections.pending_mode().unwrap();
2578 match &mode {
2579 SelectMode::Character => {
2580 head = position.to_point(&display_map);
2581 tail = pending.tail().to_point(&buffer);
2582 }
2583 SelectMode::Word(original_range) => {
2584 let original_display_range = original_range.start.to_display_point(&display_map)
2585 ..original_range.end.to_display_point(&display_map);
2586 let original_buffer_range = original_display_range.start.to_point(&display_map)
2587 ..original_display_range.end.to_point(&display_map);
2588 if movement::is_inside_word(&display_map, position)
2589 || original_display_range.contains(&position)
2590 {
2591 let word_range = movement::surrounding_word(&display_map, position);
2592 if word_range.start < original_display_range.start {
2593 head = word_range.start.to_point(&display_map);
2594 } else {
2595 head = word_range.end.to_point(&display_map);
2596 }
2597 } else {
2598 head = position.to_point(&display_map);
2599 }
2600
2601 if head <= original_buffer_range.start {
2602 tail = original_buffer_range.end;
2603 } else {
2604 tail = original_buffer_range.start;
2605 }
2606 }
2607 SelectMode::Line(original_range) => {
2608 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2609
2610 let position = display_map
2611 .clip_point(position, Bias::Left)
2612 .to_point(&display_map);
2613 let line_start = display_map.prev_line_boundary(position).0;
2614 let next_line_start = buffer.clip_point(
2615 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2616 Bias::Left,
2617 );
2618
2619 if line_start < original_range.start {
2620 head = line_start
2621 } else {
2622 head = next_line_start
2623 }
2624
2625 if head <= original_range.start {
2626 tail = original_range.end;
2627 } else {
2628 tail = original_range.start;
2629 }
2630 }
2631 SelectMode::All => {
2632 return;
2633 }
2634 };
2635
2636 if head < tail {
2637 pending.start = buffer.anchor_before(head);
2638 pending.end = buffer.anchor_before(tail);
2639 pending.reversed = true;
2640 } else {
2641 pending.start = buffer.anchor_before(tail);
2642 pending.end = buffer.anchor_before(head);
2643 pending.reversed = false;
2644 }
2645
2646 self.change_selections(None, cx, |s| {
2647 s.set_pending(pending, mode);
2648 });
2649 } else {
2650 log::error!("update_selection dispatched with no pending selection");
2651 return;
2652 }
2653
2654 self.apply_scroll_delta(scroll_delta, cx);
2655 cx.notify();
2656 }
2657
2658 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2659 self.columnar_selection_tail.take();
2660 if self.selections.pending_anchor().is_some() {
2661 let selections = self.selections.all::<usize>(cx);
2662 self.change_selections(None, cx, |s| {
2663 s.select(selections);
2664 s.clear_pending();
2665 });
2666 }
2667 }
2668
2669 fn select_columns(
2670 &mut self,
2671 tail: DisplayPoint,
2672 head: DisplayPoint,
2673 goal_column: u32,
2674 display_map: &DisplaySnapshot,
2675 cx: &mut ViewContext<Self>,
2676 ) {
2677 let start_row = cmp::min(tail.row(), head.row());
2678 let end_row = cmp::max(tail.row(), head.row());
2679 let start_column = cmp::min(tail.column(), goal_column);
2680 let end_column = cmp::max(tail.column(), goal_column);
2681 let reversed = start_column < tail.column();
2682
2683 let selection_ranges = (start_row.0..=end_row.0)
2684 .map(DisplayRow)
2685 .filter_map(|row| {
2686 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2687 let start = display_map
2688 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2689 .to_point(display_map);
2690 let end = display_map
2691 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2692 .to_point(display_map);
2693 if reversed {
2694 Some(end..start)
2695 } else {
2696 Some(start..end)
2697 }
2698 } else {
2699 None
2700 }
2701 })
2702 .collect::<Vec<_>>();
2703
2704 self.change_selections(None, cx, |s| {
2705 s.select_ranges(selection_ranges);
2706 });
2707 cx.notify();
2708 }
2709
2710 pub fn has_pending_nonempty_selection(&self) -> bool {
2711 let pending_nonempty_selection = match self.selections.pending_anchor() {
2712 Some(Selection { start, end, .. }) => start != end,
2713 None => false,
2714 };
2715 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2716 }
2717
2718 pub fn has_pending_selection(&self) -> bool {
2719 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2720 }
2721
2722 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2723 self.clear_expanded_diff_hunks(cx);
2724 if self.dismiss_menus_and_popups(true, cx) {
2725 return;
2726 }
2727
2728 if self.mode == EditorMode::Full {
2729 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2730 return;
2731 }
2732 }
2733
2734 cx.propagate();
2735 }
2736
2737 pub fn dismiss_menus_and_popups(
2738 &mut self,
2739 should_report_inline_completion_event: bool,
2740 cx: &mut ViewContext<Self>,
2741 ) -> bool {
2742 if self.take_rename(false, cx).is_some() {
2743 return true;
2744 }
2745
2746 if hide_hover(self, cx) {
2747 return true;
2748 }
2749
2750 if self.hide_context_menu(cx).is_some() {
2751 return true;
2752 }
2753
2754 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2755 return true;
2756 }
2757
2758 if self.snippet_stack.pop().is_some() {
2759 return true;
2760 }
2761
2762 if self.mode == EditorMode::Full {
2763 if self.active_diagnostics.is_some() {
2764 self.dismiss_diagnostics(cx);
2765 return true;
2766 }
2767 }
2768
2769 false
2770 }
2771
2772 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2773 let text: Arc<str> = text.into();
2774
2775 if self.read_only(cx) {
2776 return;
2777 }
2778
2779 let selections = self.selections.all_adjusted(cx);
2780 let mut brace_inserted = false;
2781 let mut edits = Vec::new();
2782 let mut new_selections = Vec::with_capacity(selections.len());
2783 let mut new_autoclose_regions = Vec::new();
2784 let snapshot = self.buffer.read(cx).read(cx);
2785
2786 for (selection, autoclose_region) in
2787 self.selections_with_autoclose_regions(selections, &snapshot)
2788 {
2789 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2790 // Determine if the inserted text matches the opening or closing
2791 // bracket of any of this language's bracket pairs.
2792 let mut bracket_pair = None;
2793 let mut is_bracket_pair_start = false;
2794 let mut is_bracket_pair_end = false;
2795 if !text.is_empty() {
2796 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2797 // and they are removing the character that triggered IME popup.
2798 for (pair, enabled) in scope.brackets() {
2799 if !pair.close {
2800 continue;
2801 }
2802
2803 if enabled && pair.start.ends_with(text.as_ref()) {
2804 bracket_pair = Some(pair.clone());
2805 is_bracket_pair_start = true;
2806 break;
2807 }
2808 if pair.end.as_str() == text.as_ref() {
2809 bracket_pair = Some(pair.clone());
2810 is_bracket_pair_end = true;
2811 break;
2812 }
2813 }
2814 }
2815
2816 if let Some(bracket_pair) = bracket_pair {
2817 if selection.is_empty() {
2818 if is_bracket_pair_start {
2819 let prefix_len = bracket_pair.start.len() - text.len();
2820
2821 // If the inserted text is a suffix of an opening bracket and the
2822 // selection is preceded by the rest of the opening bracket, then
2823 // insert the closing bracket.
2824 let following_text_allows_autoclose = snapshot
2825 .chars_at(selection.start)
2826 .next()
2827 .map_or(true, |c| scope.should_autoclose_before(c));
2828 let preceding_text_matches_prefix = prefix_len == 0
2829 || (selection.start.column >= (prefix_len as u32)
2830 && snapshot.contains_str_at(
2831 Point::new(
2832 selection.start.row,
2833 selection.start.column - (prefix_len as u32),
2834 ),
2835 &bracket_pair.start[..prefix_len],
2836 ));
2837 let autoclose = self.use_autoclose
2838 && snapshot.settings_at(selection.start, cx).use_autoclose;
2839 if autoclose
2840 && following_text_allows_autoclose
2841 && preceding_text_matches_prefix
2842 {
2843 let anchor = snapshot.anchor_before(selection.end);
2844 new_selections.push((selection.map(|_| anchor), text.len()));
2845 new_autoclose_regions.push((
2846 anchor,
2847 text.len(),
2848 selection.id,
2849 bracket_pair.clone(),
2850 ));
2851 edits.push((
2852 selection.range(),
2853 format!("{}{}", text, bracket_pair.end).into(),
2854 ));
2855 brace_inserted = true;
2856 continue;
2857 }
2858 }
2859
2860 if let Some(region) = autoclose_region {
2861 // If the selection is followed by an auto-inserted closing bracket,
2862 // then don't insert that closing bracket again; just move the selection
2863 // past the closing bracket.
2864 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2865 && text.as_ref() == region.pair.end.as_str();
2866 if should_skip {
2867 let anchor = snapshot.anchor_after(selection.end);
2868 new_selections
2869 .push((selection.map(|_| anchor), region.pair.end.len()));
2870 continue;
2871 }
2872 }
2873
2874 let always_treat_brackets_as_autoclosed = snapshot
2875 .settings_at(selection.start, cx)
2876 .always_treat_brackets_as_autoclosed;
2877 if always_treat_brackets_as_autoclosed
2878 && is_bracket_pair_end
2879 && snapshot.contains_str_at(selection.end, text.as_ref())
2880 {
2881 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2882 // and the inserted text is a closing bracket and the selection is followed
2883 // by the closing bracket then move the selection past the closing bracket.
2884 let anchor = snapshot.anchor_after(selection.end);
2885 new_selections.push((selection.map(|_| anchor), text.len()));
2886 continue;
2887 }
2888 }
2889 // If an opening bracket is 1 character long and is typed while
2890 // text is selected, then surround that text with the bracket pair.
2891 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2892 edits.push((selection.start..selection.start, text.clone()));
2893 edits.push((
2894 selection.end..selection.end,
2895 bracket_pair.end.as_str().into(),
2896 ));
2897 brace_inserted = true;
2898 new_selections.push((
2899 Selection {
2900 id: selection.id,
2901 start: snapshot.anchor_after(selection.start),
2902 end: snapshot.anchor_before(selection.end),
2903 reversed: selection.reversed,
2904 goal: selection.goal,
2905 },
2906 0,
2907 ));
2908 continue;
2909 }
2910 }
2911 }
2912
2913 if self.auto_replace_emoji_shortcode
2914 && selection.is_empty()
2915 && text.as_ref().ends_with(':')
2916 {
2917 if let Some(possible_emoji_short_code) =
2918 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2919 {
2920 if !possible_emoji_short_code.is_empty() {
2921 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2922 let emoji_shortcode_start = Point::new(
2923 selection.start.row,
2924 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2925 );
2926
2927 // Remove shortcode from buffer
2928 edits.push((
2929 emoji_shortcode_start..selection.start,
2930 "".to_string().into(),
2931 ));
2932 new_selections.push((
2933 Selection {
2934 id: selection.id,
2935 start: snapshot.anchor_after(emoji_shortcode_start),
2936 end: snapshot.anchor_before(selection.start),
2937 reversed: selection.reversed,
2938 goal: selection.goal,
2939 },
2940 0,
2941 ));
2942
2943 // Insert emoji
2944 let selection_start_anchor = snapshot.anchor_after(selection.start);
2945 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2946 edits.push((selection.start..selection.end, emoji.to_string().into()));
2947
2948 continue;
2949 }
2950 }
2951 }
2952 }
2953
2954 // If not handling any auto-close operation, then just replace the selected
2955 // text with the given input and move the selection to the end of the
2956 // newly inserted text.
2957 let anchor = snapshot.anchor_after(selection.end);
2958 new_selections.push((selection.map(|_| anchor), 0));
2959 edits.push((selection.start..selection.end, text.clone()));
2960 }
2961
2962 drop(snapshot);
2963 self.transact(cx, |this, cx| {
2964 this.buffer.update(cx, |buffer, cx| {
2965 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2966 });
2967
2968 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2969 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2970 let snapshot = this.buffer.read(cx).read(cx);
2971 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2972 .zip(new_selection_deltas)
2973 .map(|(selection, delta)| Selection {
2974 id: selection.id,
2975 start: selection.start + delta,
2976 end: selection.end + delta,
2977 reversed: selection.reversed,
2978 goal: SelectionGoal::None,
2979 })
2980 .collect::<Vec<_>>();
2981
2982 let mut i = 0;
2983 for (position, delta, selection_id, pair) in new_autoclose_regions {
2984 let position = position.to_offset(&snapshot) + delta;
2985 let start = snapshot.anchor_before(position);
2986 let end = snapshot.anchor_after(position);
2987 while let Some(existing_state) = this.autoclose_regions.get(i) {
2988 match existing_state.range.start.cmp(&start, &snapshot) {
2989 Ordering::Less => i += 1,
2990 Ordering::Greater => break,
2991 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2992 Ordering::Less => i += 1,
2993 Ordering::Equal => break,
2994 Ordering::Greater => break,
2995 },
2996 }
2997 }
2998 this.autoclose_regions.insert(
2999 i,
3000 AutocloseRegion {
3001 selection_id,
3002 range: start..end,
3003 pair,
3004 },
3005 );
3006 }
3007
3008 drop(snapshot);
3009 let had_active_inline_completion = this.has_active_inline_completion(cx);
3010 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3011 s.select(new_selections)
3012 });
3013
3014 if brace_inserted {
3015 // If we inserted a brace while composing text (i.e. typing `"` on a
3016 // Brazilian keyboard), exit the composing state because most likely
3017 // the user wanted to surround the selection.
3018 this.unmark_text(cx);
3019 } else if EditorSettings::get_global(cx).use_on_type_format {
3020 if let Some(on_type_format_task) =
3021 this.trigger_on_type_formatting(text.to_string(), cx)
3022 {
3023 on_type_format_task.detach_and_log_err(cx);
3024 }
3025 }
3026
3027 let trigger_in_words = !had_active_inline_completion;
3028 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3029 this.refresh_inline_completion(true, cx);
3030 });
3031 }
3032
3033 fn find_possible_emoji_shortcode_at_position(
3034 snapshot: &MultiBufferSnapshot,
3035 position: Point,
3036 ) -> Option<String> {
3037 let mut chars = Vec::new();
3038 let mut found_colon = false;
3039 for char in snapshot.reversed_chars_at(position).take(100) {
3040 // Found a possible emoji shortcode in the middle of the buffer
3041 if found_colon {
3042 if char.is_whitespace() {
3043 chars.reverse();
3044 return Some(chars.iter().collect());
3045 }
3046 // If the previous character is not a whitespace, we are in the middle of a word
3047 // and we only want to complete the shortcode if the word is made up of other emojis
3048 let mut containing_word = String::new();
3049 for ch in snapshot
3050 .reversed_chars_at(position)
3051 .skip(chars.len() + 1)
3052 .take(100)
3053 {
3054 if ch.is_whitespace() {
3055 break;
3056 }
3057 containing_word.push(ch);
3058 }
3059 let containing_word = containing_word.chars().rev().collect::<String>();
3060 if util::word_consists_of_emojis(containing_word.as_str()) {
3061 chars.reverse();
3062 return Some(chars.iter().collect());
3063 }
3064 }
3065
3066 if char.is_whitespace() || !char.is_ascii() {
3067 return None;
3068 }
3069 if char == ':' {
3070 found_colon = true;
3071 } else {
3072 chars.push(char);
3073 }
3074 }
3075 // Found a possible emoji shortcode at the beginning of the buffer
3076 chars.reverse();
3077 Some(chars.iter().collect())
3078 }
3079
3080 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3081 self.transact(cx, |this, cx| {
3082 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3083 let selections = this.selections.all::<usize>(cx);
3084 let multi_buffer = this.buffer.read(cx);
3085 let buffer = multi_buffer.snapshot(cx);
3086 selections
3087 .iter()
3088 .map(|selection| {
3089 let start_point = selection.start.to_point(&buffer);
3090 let mut indent =
3091 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3092 indent.len = cmp::min(indent.len, start_point.column);
3093 let start = selection.start;
3094 let end = selection.end;
3095 let selection_is_empty = start == end;
3096 let language_scope = buffer.language_scope_at(start);
3097 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3098 &language_scope
3099 {
3100 let leading_whitespace_len = buffer
3101 .reversed_chars_at(start)
3102 .take_while(|c| c.is_whitespace() && *c != '\n')
3103 .map(|c| c.len_utf8())
3104 .sum::<usize>();
3105
3106 let trailing_whitespace_len = buffer
3107 .chars_at(end)
3108 .take_while(|c| c.is_whitespace() && *c != '\n')
3109 .map(|c| c.len_utf8())
3110 .sum::<usize>();
3111
3112 let insert_extra_newline =
3113 language.brackets().any(|(pair, enabled)| {
3114 let pair_start = pair.start.trim_end();
3115 let pair_end = pair.end.trim_start();
3116
3117 enabled
3118 && pair.newline
3119 && buffer.contains_str_at(
3120 end + trailing_whitespace_len,
3121 pair_end,
3122 )
3123 && buffer.contains_str_at(
3124 (start - leading_whitespace_len)
3125 .saturating_sub(pair_start.len()),
3126 pair_start,
3127 )
3128 });
3129
3130 // Comment extension on newline is allowed only for cursor selections
3131 let comment_delimiter = maybe!({
3132 if !selection_is_empty {
3133 return None;
3134 }
3135
3136 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3137 return None;
3138 }
3139
3140 let delimiters = language.line_comment_prefixes();
3141 let max_len_of_delimiter =
3142 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3143 let (snapshot, range) =
3144 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3145
3146 let mut index_of_first_non_whitespace = 0;
3147 let comment_candidate = snapshot
3148 .chars_for_range(range)
3149 .skip_while(|c| {
3150 let should_skip = c.is_whitespace();
3151 if should_skip {
3152 index_of_first_non_whitespace += 1;
3153 }
3154 should_skip
3155 })
3156 .take(max_len_of_delimiter)
3157 .collect::<String>();
3158 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3159 comment_candidate.starts_with(comment_prefix.as_ref())
3160 })?;
3161 let cursor_is_placed_after_comment_marker =
3162 index_of_first_non_whitespace + comment_prefix.len()
3163 <= start_point.column as usize;
3164 if cursor_is_placed_after_comment_marker {
3165 Some(comment_prefix.clone())
3166 } else {
3167 None
3168 }
3169 });
3170 (comment_delimiter, insert_extra_newline)
3171 } else {
3172 (None, false)
3173 };
3174
3175 let capacity_for_delimiter = comment_delimiter
3176 .as_deref()
3177 .map(str::len)
3178 .unwrap_or_default();
3179 let mut new_text =
3180 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3181 new_text.push_str("\n");
3182 new_text.extend(indent.chars());
3183 if let Some(delimiter) = &comment_delimiter {
3184 new_text.push_str(&delimiter);
3185 }
3186 if insert_extra_newline {
3187 new_text = new_text.repeat(2);
3188 }
3189
3190 let anchor = buffer.anchor_after(end);
3191 let new_selection = selection.map(|_| anchor);
3192 (
3193 (start..end, new_text),
3194 (insert_extra_newline, new_selection),
3195 )
3196 })
3197 .unzip()
3198 };
3199
3200 this.edit_with_autoindent(edits, cx);
3201 let buffer = this.buffer.read(cx).snapshot(cx);
3202 let new_selections = selection_fixup_info
3203 .into_iter()
3204 .map(|(extra_newline_inserted, new_selection)| {
3205 let mut cursor = new_selection.end.to_point(&buffer);
3206 if extra_newline_inserted {
3207 cursor.row -= 1;
3208 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3209 }
3210 new_selection.map(|_| cursor)
3211 })
3212 .collect();
3213
3214 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3215 this.refresh_inline_completion(true, cx);
3216 });
3217 }
3218
3219 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3220 let buffer = self.buffer.read(cx);
3221 let snapshot = buffer.snapshot(cx);
3222
3223 let mut edits = Vec::new();
3224 let mut rows = Vec::new();
3225
3226 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3227 let cursor = selection.head();
3228 let row = cursor.row;
3229
3230 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3231
3232 let newline = "\n".to_string();
3233 edits.push((start_of_line..start_of_line, newline));
3234
3235 rows.push(row + rows_inserted as u32);
3236 }
3237
3238 self.transact(cx, |editor, cx| {
3239 editor.edit(edits, cx);
3240
3241 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3242 let mut index = 0;
3243 s.move_cursors_with(|map, _, _| {
3244 let row = rows[index];
3245 index += 1;
3246
3247 let point = Point::new(row, 0);
3248 let boundary = map.next_line_boundary(point).1;
3249 let clipped = map.clip_point(boundary, Bias::Left);
3250
3251 (clipped, SelectionGoal::None)
3252 });
3253 });
3254
3255 let mut indent_edits = Vec::new();
3256 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3257 for row in rows {
3258 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3259 for (row, indent) in indents {
3260 if indent.len == 0 {
3261 continue;
3262 }
3263
3264 let text = match indent.kind {
3265 IndentKind::Space => " ".repeat(indent.len as usize),
3266 IndentKind::Tab => "\t".repeat(indent.len as usize),
3267 };
3268 let point = Point::new(row.0, 0);
3269 indent_edits.push((point..point, text));
3270 }
3271 }
3272 editor.edit(indent_edits, cx);
3273 });
3274 }
3275
3276 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3277 let buffer = self.buffer.read(cx);
3278 let snapshot = buffer.snapshot(cx);
3279
3280 let mut edits = Vec::new();
3281 let mut rows = Vec::new();
3282 let mut rows_inserted = 0;
3283
3284 for selection in self.selections.all_adjusted(cx) {
3285 let cursor = selection.head();
3286 let row = cursor.row;
3287
3288 let point = Point::new(row + 1, 0);
3289 let start_of_line = snapshot.clip_point(point, Bias::Left);
3290
3291 let newline = "\n".to_string();
3292 edits.push((start_of_line..start_of_line, newline));
3293
3294 rows_inserted += 1;
3295 rows.push(row + rows_inserted);
3296 }
3297
3298 self.transact(cx, |editor, cx| {
3299 editor.edit(edits, cx);
3300
3301 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3302 let mut index = 0;
3303 s.move_cursors_with(|map, _, _| {
3304 let row = rows[index];
3305 index += 1;
3306
3307 let point = Point::new(row, 0);
3308 let boundary = map.next_line_boundary(point).1;
3309 let clipped = map.clip_point(boundary, Bias::Left);
3310
3311 (clipped, SelectionGoal::None)
3312 });
3313 });
3314
3315 let mut indent_edits = Vec::new();
3316 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3317 for row in rows {
3318 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3319 for (row, indent) in indents {
3320 if indent.len == 0 {
3321 continue;
3322 }
3323
3324 let text = match indent.kind {
3325 IndentKind::Space => " ".repeat(indent.len as usize),
3326 IndentKind::Tab => "\t".repeat(indent.len as usize),
3327 };
3328 let point = Point::new(row.0, 0);
3329 indent_edits.push((point..point, text));
3330 }
3331 }
3332 editor.edit(indent_edits, cx);
3333 });
3334 }
3335
3336 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3337 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3338 original_indent_columns: Vec::new(),
3339 });
3340 self.insert_with_autoindent_mode(text, autoindent, cx);
3341 }
3342
3343 fn insert_with_autoindent_mode(
3344 &mut self,
3345 text: &str,
3346 autoindent_mode: Option<AutoindentMode>,
3347 cx: &mut ViewContext<Self>,
3348 ) {
3349 if self.read_only(cx) {
3350 return;
3351 }
3352
3353 let text: Arc<str> = text.into();
3354 self.transact(cx, |this, cx| {
3355 let old_selections = this.selections.all_adjusted(cx);
3356 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3357 let anchors = {
3358 let snapshot = buffer.read(cx);
3359 old_selections
3360 .iter()
3361 .map(|s| {
3362 let anchor = snapshot.anchor_after(s.head());
3363 s.map(|_| anchor)
3364 })
3365 .collect::<Vec<_>>()
3366 };
3367 buffer.edit(
3368 old_selections
3369 .iter()
3370 .map(|s| (s.start..s.end, text.clone())),
3371 autoindent_mode,
3372 cx,
3373 );
3374 anchors
3375 });
3376
3377 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3378 s.select_anchors(selection_anchors);
3379 })
3380 });
3381 }
3382
3383 fn trigger_completion_on_input(
3384 &mut self,
3385 text: &str,
3386 trigger_in_words: bool,
3387 cx: &mut ViewContext<Self>,
3388 ) {
3389 if self.is_completion_trigger(text, trigger_in_words, cx) {
3390 self.show_completions(&ShowCompletions, cx);
3391 } else {
3392 self.hide_context_menu(cx);
3393 }
3394 }
3395
3396 fn is_completion_trigger(
3397 &self,
3398 text: &str,
3399 trigger_in_words: bool,
3400 cx: &mut ViewContext<Self>,
3401 ) -> bool {
3402 let position = self.selections.newest_anchor().head();
3403 let multibuffer = self.buffer.read(cx);
3404 let Some(buffer) = position
3405 .buffer_id
3406 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3407 else {
3408 return false;
3409 };
3410
3411 if let Some(completion_provider) = &self.completion_provider {
3412 completion_provider.is_completion_trigger(
3413 &buffer,
3414 position.text_anchor,
3415 text,
3416 trigger_in_words,
3417 cx,
3418 )
3419 } else {
3420 false
3421 }
3422 }
3423
3424 /// If any empty selections is touching the start of its innermost containing autoclose
3425 /// region, expand it to select the brackets.
3426 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3427 let selections = self.selections.all::<usize>(cx);
3428 let buffer = self.buffer.read(cx).read(cx);
3429 let new_selections = self
3430 .selections_with_autoclose_regions(selections, &buffer)
3431 .map(|(mut selection, region)| {
3432 if !selection.is_empty() {
3433 return selection;
3434 }
3435
3436 if let Some(region) = region {
3437 let mut range = region.range.to_offset(&buffer);
3438 if selection.start == range.start && range.start >= region.pair.start.len() {
3439 range.start -= region.pair.start.len();
3440 if buffer.contains_str_at(range.start, ®ion.pair.start)
3441 && buffer.contains_str_at(range.end, ®ion.pair.end)
3442 {
3443 range.end += region.pair.end.len();
3444 selection.start = range.start;
3445 selection.end = range.end;
3446
3447 return selection;
3448 }
3449 }
3450 }
3451
3452 let always_treat_brackets_as_autoclosed = buffer
3453 .settings_at(selection.start, cx)
3454 .always_treat_brackets_as_autoclosed;
3455
3456 if !always_treat_brackets_as_autoclosed {
3457 return selection;
3458 }
3459
3460 if let Some(scope) = buffer.language_scope_at(selection.start) {
3461 for (pair, enabled) in scope.brackets() {
3462 if !enabled || !pair.close {
3463 continue;
3464 }
3465
3466 if buffer.contains_str_at(selection.start, &pair.end) {
3467 let pair_start_len = pair.start.len();
3468 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3469 {
3470 selection.start -= pair_start_len;
3471 selection.end += pair.end.len();
3472
3473 return selection;
3474 }
3475 }
3476 }
3477 }
3478
3479 selection
3480 })
3481 .collect();
3482
3483 drop(buffer);
3484 self.change_selections(None, cx, |selections| selections.select(new_selections));
3485 }
3486
3487 /// Iterate the given selections, and for each one, find the smallest surrounding
3488 /// autoclose region. This uses the ordering of the selections and the autoclose
3489 /// regions to avoid repeated comparisons.
3490 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3491 &'a self,
3492 selections: impl IntoIterator<Item = Selection<D>>,
3493 buffer: &'a MultiBufferSnapshot,
3494 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3495 let mut i = 0;
3496 let mut regions = self.autoclose_regions.as_slice();
3497 selections.into_iter().map(move |selection| {
3498 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3499
3500 let mut enclosing = None;
3501 while let Some(pair_state) = regions.get(i) {
3502 if pair_state.range.end.to_offset(buffer) < range.start {
3503 regions = ®ions[i + 1..];
3504 i = 0;
3505 } else if pair_state.range.start.to_offset(buffer) > range.end {
3506 break;
3507 } else {
3508 if pair_state.selection_id == selection.id {
3509 enclosing = Some(pair_state);
3510 }
3511 i += 1;
3512 }
3513 }
3514
3515 (selection.clone(), enclosing)
3516 })
3517 }
3518
3519 /// Remove any autoclose regions that no longer contain their selection.
3520 fn invalidate_autoclose_regions(
3521 &mut self,
3522 mut selections: &[Selection<Anchor>],
3523 buffer: &MultiBufferSnapshot,
3524 ) {
3525 self.autoclose_regions.retain(|state| {
3526 let mut i = 0;
3527 while let Some(selection) = selections.get(i) {
3528 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3529 selections = &selections[1..];
3530 continue;
3531 }
3532 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3533 break;
3534 }
3535 if selection.id == state.selection_id {
3536 return true;
3537 } else {
3538 i += 1;
3539 }
3540 }
3541 false
3542 });
3543 }
3544
3545 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3546 let offset = position.to_offset(buffer);
3547 let (word_range, kind) = buffer.surrounding_word(offset);
3548 if offset > word_range.start && kind == Some(CharKind::Word) {
3549 Some(
3550 buffer
3551 .text_for_range(word_range.start..offset)
3552 .collect::<String>(),
3553 )
3554 } else {
3555 None
3556 }
3557 }
3558
3559 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3560 self.refresh_inlay_hints(
3561 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3562 cx,
3563 );
3564 }
3565
3566 pub fn inlay_hints_enabled(&self) -> bool {
3567 self.inlay_hint_cache.enabled
3568 }
3569
3570 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3571 if self.project.is_none() || self.mode != EditorMode::Full {
3572 return;
3573 }
3574
3575 let reason_description = reason.description();
3576 let ignore_debounce = matches!(
3577 reason,
3578 InlayHintRefreshReason::SettingsChange(_)
3579 | InlayHintRefreshReason::Toggle(_)
3580 | InlayHintRefreshReason::ExcerptsRemoved(_)
3581 );
3582 let (invalidate_cache, required_languages) = match reason {
3583 InlayHintRefreshReason::Toggle(enabled) => {
3584 self.inlay_hint_cache.enabled = enabled;
3585 if enabled {
3586 (InvalidationStrategy::RefreshRequested, None)
3587 } else {
3588 self.inlay_hint_cache.clear();
3589 self.splice_inlays(
3590 self.visible_inlay_hints(cx)
3591 .iter()
3592 .map(|inlay| inlay.id)
3593 .collect(),
3594 Vec::new(),
3595 cx,
3596 );
3597 return;
3598 }
3599 }
3600 InlayHintRefreshReason::SettingsChange(new_settings) => {
3601 match self.inlay_hint_cache.update_settings(
3602 &self.buffer,
3603 new_settings,
3604 self.visible_inlay_hints(cx),
3605 cx,
3606 ) {
3607 ControlFlow::Break(Some(InlaySplice {
3608 to_remove,
3609 to_insert,
3610 })) => {
3611 self.splice_inlays(to_remove, to_insert, cx);
3612 return;
3613 }
3614 ControlFlow::Break(None) => return,
3615 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3616 }
3617 }
3618 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3619 if let Some(InlaySplice {
3620 to_remove,
3621 to_insert,
3622 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3623 {
3624 self.splice_inlays(to_remove, to_insert, cx);
3625 }
3626 return;
3627 }
3628 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3629 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3630 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3631 }
3632 InlayHintRefreshReason::RefreshRequested => {
3633 (InvalidationStrategy::RefreshRequested, None)
3634 }
3635 };
3636
3637 if let Some(InlaySplice {
3638 to_remove,
3639 to_insert,
3640 }) = self.inlay_hint_cache.spawn_hint_refresh(
3641 reason_description,
3642 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3643 invalidate_cache,
3644 ignore_debounce,
3645 cx,
3646 ) {
3647 self.splice_inlays(to_remove, to_insert, cx);
3648 }
3649 }
3650
3651 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3652 self.display_map
3653 .read(cx)
3654 .current_inlays()
3655 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3656 .cloned()
3657 .collect()
3658 }
3659
3660 pub fn excerpts_for_inlay_hints_query(
3661 &self,
3662 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3663 cx: &mut ViewContext<Editor>,
3664 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3665 let Some(project) = self.project.as_ref() else {
3666 return HashMap::default();
3667 };
3668 let project = project.read(cx);
3669 let multi_buffer = self.buffer().read(cx);
3670 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3671 let multi_buffer_visible_start = self
3672 .scroll_manager
3673 .anchor()
3674 .anchor
3675 .to_point(&multi_buffer_snapshot);
3676 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3677 multi_buffer_visible_start
3678 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3679 Bias::Left,
3680 );
3681 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3682 multi_buffer
3683 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3684 .into_iter()
3685 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3686 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3687 let buffer = buffer_handle.read(cx);
3688 let buffer_file = project::File::from_dyn(buffer.file())?;
3689 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3690 let worktree_entry = buffer_worktree
3691 .read(cx)
3692 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3693 if worktree_entry.is_ignored {
3694 return None;
3695 }
3696
3697 let language = buffer.language()?;
3698 if let Some(restrict_to_languages) = restrict_to_languages {
3699 if !restrict_to_languages.contains(language) {
3700 return None;
3701 }
3702 }
3703 Some((
3704 excerpt_id,
3705 (
3706 buffer_handle,
3707 buffer.version().clone(),
3708 excerpt_visible_range,
3709 ),
3710 ))
3711 })
3712 .collect()
3713 }
3714
3715 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3716 TextLayoutDetails {
3717 text_system: cx.text_system().clone(),
3718 editor_style: self.style.clone().unwrap(),
3719 rem_size: cx.rem_size(),
3720 scroll_anchor: self.scroll_manager.anchor(),
3721 visible_rows: self.visible_line_count(),
3722 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3723 }
3724 }
3725
3726 fn splice_inlays(
3727 &self,
3728 to_remove: Vec<InlayId>,
3729 to_insert: Vec<Inlay>,
3730 cx: &mut ViewContext<Self>,
3731 ) {
3732 self.display_map.update(cx, |display_map, cx| {
3733 display_map.splice_inlays(to_remove, to_insert, cx);
3734 });
3735 cx.notify();
3736 }
3737
3738 fn trigger_on_type_formatting(
3739 &self,
3740 input: String,
3741 cx: &mut ViewContext<Self>,
3742 ) -> Option<Task<Result<()>>> {
3743 if input.len() != 1 {
3744 return None;
3745 }
3746
3747 let project = self.project.as_ref()?;
3748 let position = self.selections.newest_anchor().head();
3749 let (buffer, buffer_position) = self
3750 .buffer
3751 .read(cx)
3752 .text_anchor_for_position(position, cx)?;
3753
3754 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3755 // hence we do LSP request & edit on host side only — add formats to host's history.
3756 let push_to_lsp_host_history = true;
3757 // If this is not the host, append its history with new edits.
3758 let push_to_client_history = project.read(cx).is_remote();
3759
3760 let on_type_formatting = project.update(cx, |project, cx| {
3761 project.on_type_format(
3762 buffer.clone(),
3763 buffer_position,
3764 input,
3765 push_to_lsp_host_history,
3766 cx,
3767 )
3768 });
3769 Some(cx.spawn(|editor, mut cx| async move {
3770 if let Some(transaction) = on_type_formatting.await? {
3771 if push_to_client_history {
3772 buffer
3773 .update(&mut cx, |buffer, _| {
3774 buffer.push_transaction(transaction, Instant::now());
3775 })
3776 .ok();
3777 }
3778 editor.update(&mut cx, |editor, cx| {
3779 editor.refresh_document_highlights(cx);
3780 })?;
3781 }
3782 Ok(())
3783 }))
3784 }
3785
3786 pub fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3787 if self.pending_rename.is_some() {
3788 return;
3789 }
3790
3791 let Some(provider) = self.completion_provider.as_ref() else {
3792 return;
3793 };
3794
3795 let position = self.selections.newest_anchor().head();
3796 let (buffer, buffer_position) =
3797 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3798 output
3799 } else {
3800 return;
3801 };
3802
3803 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3804 let completions = provider.completions(&buffer, buffer_position, cx);
3805
3806 let id = post_inc(&mut self.next_completion_id);
3807 let task = cx.spawn(|this, mut cx| {
3808 async move {
3809 let completions = completions.await.log_err();
3810 let menu = if let Some(completions) = completions {
3811 let mut menu = CompletionsMenu {
3812 id,
3813 initial_position: position,
3814 match_candidates: completions
3815 .iter()
3816 .enumerate()
3817 .map(|(id, completion)| {
3818 StringMatchCandidate::new(
3819 id,
3820 completion.label.text[completion.label.filter_range.clone()]
3821 .into(),
3822 )
3823 })
3824 .collect(),
3825 buffer: buffer.clone(),
3826 completions: Arc::new(RwLock::new(completions.into())),
3827 matches: Vec::new().into(),
3828 selected_item: 0,
3829 scroll_handle: UniformListScrollHandle::new(),
3830 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3831 DebouncedDelay::new(),
3832 )),
3833 };
3834 menu.filter(query.as_deref(), cx.background_executor().clone())
3835 .await;
3836
3837 if menu.matches.is_empty() {
3838 None
3839 } else {
3840 this.update(&mut cx, |editor, cx| {
3841 let completions = menu.completions.clone();
3842 let matches = menu.matches.clone();
3843
3844 let delay_ms = EditorSettings::get_global(cx)
3845 .completion_documentation_secondary_query_debounce;
3846 let delay = Duration::from_millis(delay_ms);
3847
3848 editor
3849 .completion_documentation_pre_resolve_debounce
3850 .fire_new(delay, cx, |editor, cx| {
3851 CompletionsMenu::pre_resolve_completion_documentation(
3852 buffer,
3853 completions,
3854 matches,
3855 editor,
3856 cx,
3857 )
3858 });
3859 })
3860 .ok();
3861 Some(menu)
3862 }
3863 } else {
3864 None
3865 };
3866
3867 this.update(&mut cx, |this, cx| {
3868 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3869
3870 let mut context_menu = this.context_menu.write();
3871 match context_menu.as_ref() {
3872 None => {}
3873
3874 Some(ContextMenu::Completions(prev_menu)) => {
3875 if prev_menu.id > id {
3876 return;
3877 }
3878 }
3879
3880 _ => return,
3881 }
3882
3883 if this.focus_handle.is_focused(cx) && menu.is_some() {
3884 let menu = menu.unwrap();
3885 *context_menu = Some(ContextMenu::Completions(menu));
3886 drop(context_menu);
3887 this.discard_inline_completion(false, cx);
3888 cx.notify();
3889 } else if this.completion_tasks.len() <= 1 {
3890 // If there are no more completion tasks and the last menu was
3891 // empty, we should hide it. If it was already hidden, we should
3892 // also show the copilot completion when available.
3893 drop(context_menu);
3894 if this.hide_context_menu(cx).is_none() {
3895 this.update_visible_inline_completion(cx);
3896 }
3897 }
3898 })?;
3899
3900 Ok::<_, anyhow::Error>(())
3901 }
3902 .log_err()
3903 });
3904
3905 self.completion_tasks.push((id, task));
3906 }
3907
3908 pub fn confirm_completion(
3909 &mut self,
3910 action: &ConfirmCompletion,
3911 cx: &mut ViewContext<Self>,
3912 ) -> Option<Task<Result<()>>> {
3913 use language::ToOffset as _;
3914
3915 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3916 menu
3917 } else {
3918 return None;
3919 };
3920
3921 let mat = completions_menu
3922 .matches
3923 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3924 let buffer_handle = completions_menu.buffer;
3925 let completions = completions_menu.completions.read();
3926 let completion = completions.get(mat.candidate_id)?;
3927 cx.stop_propagation();
3928
3929 let snippet;
3930 let text;
3931
3932 if completion.is_snippet() {
3933 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3934 text = snippet.as_ref().unwrap().text.clone();
3935 } else {
3936 snippet = None;
3937 text = completion.new_text.clone();
3938 };
3939 let selections = self.selections.all::<usize>(cx);
3940 let buffer = buffer_handle.read(cx);
3941 let old_range = completion.old_range.to_offset(buffer);
3942 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3943
3944 let newest_selection = self.selections.newest_anchor();
3945 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3946 return None;
3947 }
3948
3949 let lookbehind = newest_selection
3950 .start
3951 .text_anchor
3952 .to_offset(buffer)
3953 .saturating_sub(old_range.start);
3954 let lookahead = old_range
3955 .end
3956 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3957 let mut common_prefix_len = old_text
3958 .bytes()
3959 .zip(text.bytes())
3960 .take_while(|(a, b)| a == b)
3961 .count();
3962
3963 let snapshot = self.buffer.read(cx).snapshot(cx);
3964 let mut range_to_replace: Option<Range<isize>> = None;
3965 let mut ranges = Vec::new();
3966 for selection in &selections {
3967 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3968 let start = selection.start.saturating_sub(lookbehind);
3969 let end = selection.end + lookahead;
3970 if selection.id == newest_selection.id {
3971 range_to_replace = Some(
3972 ((start + common_prefix_len) as isize - selection.start as isize)
3973 ..(end as isize - selection.start as isize),
3974 );
3975 }
3976 ranges.push(start + common_prefix_len..end);
3977 } else {
3978 common_prefix_len = 0;
3979 ranges.clear();
3980 ranges.extend(selections.iter().map(|s| {
3981 if s.id == newest_selection.id {
3982 range_to_replace = Some(
3983 old_range.start.to_offset_utf16(&snapshot).0 as isize
3984 - selection.start as isize
3985 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3986 - selection.start as isize,
3987 );
3988 old_range.clone()
3989 } else {
3990 s.start..s.end
3991 }
3992 }));
3993 break;
3994 }
3995 }
3996 let text = &text[common_prefix_len..];
3997
3998 cx.emit(EditorEvent::InputHandled {
3999 utf16_range_to_replace: range_to_replace,
4000 text: text.into(),
4001 });
4002
4003 self.transact(cx, |this, cx| {
4004 if let Some(mut snippet) = snippet {
4005 snippet.text = text.to_string();
4006 for tabstop in snippet.tabstops.iter_mut().flatten() {
4007 tabstop.start -= common_prefix_len as isize;
4008 tabstop.end -= common_prefix_len as isize;
4009 }
4010
4011 this.insert_snippet(&ranges, snippet, cx).log_err();
4012 } else {
4013 this.buffer.update(cx, |buffer, cx| {
4014 buffer.edit(
4015 ranges.iter().map(|range| (range.clone(), text)),
4016 this.autoindent_mode.clone(),
4017 cx,
4018 );
4019 });
4020 }
4021
4022 this.refresh_inline_completion(true, cx);
4023 });
4024
4025 if let Some(confirm) = completion.confirm.as_ref() {
4026 (confirm)(cx);
4027 }
4028
4029 if completion.show_new_completions_on_confirm {
4030 self.show_completions(&ShowCompletions, cx);
4031 }
4032
4033 let provider = self.completion_provider.as_ref()?;
4034 let apply_edits = provider.apply_additional_edits_for_completion(
4035 buffer_handle,
4036 completion.clone(),
4037 true,
4038 cx,
4039 );
4040 Some(cx.foreground_executor().spawn(async move {
4041 apply_edits.await?;
4042 Ok(())
4043 }))
4044 }
4045
4046 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4047 let mut context_menu = self.context_menu.write();
4048 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4049 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4050 // Toggle if we're selecting the same one
4051 *context_menu = None;
4052 cx.notify();
4053 return;
4054 } else {
4055 // Otherwise, clear it and start a new one
4056 *context_menu = None;
4057 cx.notify();
4058 }
4059 }
4060 drop(context_menu);
4061 let snapshot = self.snapshot(cx);
4062 let deployed_from_indicator = action.deployed_from_indicator;
4063 let mut task = self.code_actions_task.take();
4064 let action = action.clone();
4065 cx.spawn(|editor, mut cx| async move {
4066 while let Some(prev_task) = task {
4067 prev_task.await;
4068 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4069 }
4070
4071 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4072 if editor.focus_handle.is_focused(cx) {
4073 let multibuffer_point = action
4074 .deployed_from_indicator
4075 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4076 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4077 let (buffer, buffer_row) = snapshot
4078 .buffer_snapshot
4079 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4080 .and_then(|(buffer_snapshot, range)| {
4081 editor
4082 .buffer
4083 .read(cx)
4084 .buffer(buffer_snapshot.remote_id())
4085 .map(|buffer| (buffer, range.start.row))
4086 })?;
4087 let (_, code_actions) = editor
4088 .available_code_actions
4089 .clone()
4090 .and_then(|(location, code_actions)| {
4091 let snapshot = location.buffer.read(cx).snapshot();
4092 let point_range = location.range.to_point(&snapshot);
4093 let point_range = point_range.start.row..=point_range.end.row;
4094 if point_range.contains(&buffer_row) {
4095 Some((location, code_actions))
4096 } else {
4097 None
4098 }
4099 })
4100 .unzip();
4101 let buffer_id = buffer.read(cx).remote_id();
4102 let tasks = editor
4103 .tasks
4104 .get(&(buffer_id, buffer_row))
4105 .map(|t| Arc::new(t.to_owned()));
4106 if tasks.is_none() && code_actions.is_none() {
4107 return None;
4108 }
4109
4110 editor.completion_tasks.clear();
4111 editor.discard_inline_completion(false, cx);
4112 let task_context =
4113 tasks
4114 .as_ref()
4115 .zip(editor.project.clone())
4116 .map(|(tasks, project)| {
4117 let position = Point::new(buffer_row, tasks.column);
4118 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4119 let location = Location {
4120 buffer: buffer.clone(),
4121 range: range_start..range_start,
4122 };
4123 // Fill in the environmental variables from the tree-sitter captures
4124 let mut captured_task_variables = TaskVariables::default();
4125 for (capture_name, value) in tasks.extra_variables.clone() {
4126 captured_task_variables.insert(
4127 task::VariableName::Custom(capture_name.into()),
4128 value.clone(),
4129 );
4130 }
4131 project.update(cx, |project, cx| {
4132 project.task_context_for_location(
4133 captured_task_variables,
4134 location,
4135 cx,
4136 )
4137 })
4138 });
4139
4140 Some(cx.spawn(|editor, mut cx| async move {
4141 let task_context = match task_context {
4142 Some(task_context) => task_context.await,
4143 None => None,
4144 };
4145 let resolved_tasks =
4146 tasks.zip(task_context).map(|(tasks, task_context)| {
4147 Arc::new(ResolvedTasks {
4148 templates: tasks
4149 .templates
4150 .iter()
4151 .filter_map(|(kind, template)| {
4152 template
4153 .resolve_task(&kind.to_id_base(), &task_context)
4154 .map(|task| (kind.clone(), task))
4155 })
4156 .collect(),
4157 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4158 multibuffer_point.row,
4159 tasks.column,
4160 )),
4161 })
4162 });
4163 let spawn_straight_away = resolved_tasks
4164 .as_ref()
4165 .map_or(false, |tasks| tasks.templates.len() == 1)
4166 && code_actions
4167 .as_ref()
4168 .map_or(true, |actions| actions.is_empty());
4169 if let Some(task) = editor
4170 .update(&mut cx, |editor, cx| {
4171 *editor.context_menu.write() =
4172 Some(ContextMenu::CodeActions(CodeActionsMenu {
4173 buffer,
4174 actions: CodeActionContents {
4175 tasks: resolved_tasks,
4176 actions: code_actions,
4177 },
4178 selected_item: Default::default(),
4179 scroll_handle: UniformListScrollHandle::default(),
4180 deployed_from_indicator,
4181 }));
4182 if spawn_straight_away {
4183 if let Some(task) = editor.confirm_code_action(
4184 &ConfirmCodeAction { item_ix: Some(0) },
4185 cx,
4186 ) {
4187 cx.notify();
4188 return task;
4189 }
4190 }
4191 cx.notify();
4192 Task::ready(Ok(()))
4193 })
4194 .ok()
4195 {
4196 task.await
4197 } else {
4198 Ok(())
4199 }
4200 }))
4201 } else {
4202 Some(Task::ready(Ok(())))
4203 }
4204 })?;
4205 if let Some(task) = spawned_test_task {
4206 task.await?;
4207 }
4208
4209 Ok::<_, anyhow::Error>(())
4210 })
4211 .detach_and_log_err(cx);
4212 }
4213
4214 pub fn confirm_code_action(
4215 &mut self,
4216 action: &ConfirmCodeAction,
4217 cx: &mut ViewContext<Self>,
4218 ) -> Option<Task<Result<()>>> {
4219 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4220 menu
4221 } else {
4222 return None;
4223 };
4224 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4225 let action = actions_menu.actions.get(action_ix)?;
4226 let title = action.label();
4227 let buffer = actions_menu.buffer;
4228 let workspace = self.workspace()?;
4229
4230 match action {
4231 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4232 workspace.update(cx, |workspace, cx| {
4233 workspace::tasks::schedule_resolved_task(
4234 workspace,
4235 task_source_kind,
4236 resolved_task,
4237 false,
4238 cx,
4239 );
4240
4241 Some(Task::ready(Ok(())))
4242 })
4243 }
4244 CodeActionsItem::CodeAction(action) => {
4245 let apply_code_actions = workspace
4246 .read(cx)
4247 .project()
4248 .clone()
4249 .update(cx, |project, cx| {
4250 project.apply_code_action(buffer, action, true, cx)
4251 });
4252 let workspace = workspace.downgrade();
4253 Some(cx.spawn(|editor, cx| async move {
4254 let project_transaction = apply_code_actions.await?;
4255 Self::open_project_transaction(
4256 &editor,
4257 workspace,
4258 project_transaction,
4259 title,
4260 cx,
4261 )
4262 .await
4263 }))
4264 }
4265 }
4266 }
4267
4268 pub async fn open_project_transaction(
4269 this: &WeakView<Editor>,
4270 workspace: WeakView<Workspace>,
4271 transaction: ProjectTransaction,
4272 title: String,
4273 mut cx: AsyncWindowContext,
4274 ) -> Result<()> {
4275 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4276
4277 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4278 cx.update(|cx| {
4279 entries.sort_unstable_by_key(|(buffer, _)| {
4280 buffer.read(cx).file().map(|f| f.path().clone())
4281 });
4282 })?;
4283
4284 // If the project transaction's edits are all contained within this editor, then
4285 // avoid opening a new editor to display them.
4286
4287 if let Some((buffer, transaction)) = entries.first() {
4288 if entries.len() == 1 {
4289 let excerpt = this.update(&mut cx, |editor, cx| {
4290 editor
4291 .buffer()
4292 .read(cx)
4293 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4294 })?;
4295 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4296 if excerpted_buffer == *buffer {
4297 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4298 let excerpt_range = excerpt_range.to_offset(buffer);
4299 buffer
4300 .edited_ranges_for_transaction::<usize>(transaction)
4301 .all(|range| {
4302 excerpt_range.start <= range.start
4303 && excerpt_range.end >= range.end
4304 })
4305 })?;
4306
4307 if all_edits_within_excerpt {
4308 return Ok(());
4309 }
4310 }
4311 }
4312 }
4313 } else {
4314 return Ok(());
4315 }
4316
4317 let mut ranges_to_highlight = Vec::new();
4318 let excerpt_buffer = cx.new_model(|cx| {
4319 let mut multibuffer =
4320 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4321 for (buffer_handle, transaction) in &entries {
4322 let buffer = buffer_handle.read(cx);
4323 ranges_to_highlight.extend(
4324 multibuffer.push_excerpts_with_context_lines(
4325 buffer_handle.clone(),
4326 buffer
4327 .edited_ranges_for_transaction::<usize>(transaction)
4328 .collect(),
4329 DEFAULT_MULTIBUFFER_CONTEXT,
4330 cx,
4331 ),
4332 );
4333 }
4334 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4335 multibuffer
4336 })?;
4337
4338 workspace.update(&mut cx, |workspace, cx| {
4339 let project = workspace.project().clone();
4340 let editor =
4341 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4342 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4343 editor.update(cx, |editor, cx| {
4344 editor.highlight_background::<Self>(
4345 &ranges_to_highlight,
4346 |theme| theme.editor_highlighted_line_background,
4347 cx,
4348 );
4349 });
4350 })?;
4351
4352 Ok(())
4353 }
4354
4355 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4356 let project = self.project.clone()?;
4357 let buffer = self.buffer.read(cx);
4358 let newest_selection = self.selections.newest_anchor().clone();
4359 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4360 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4361 if start_buffer != end_buffer {
4362 return None;
4363 }
4364
4365 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4366 cx.background_executor()
4367 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4368 .await;
4369
4370 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4371 project.code_actions(&start_buffer, start..end, cx)
4372 }) {
4373 code_actions.await
4374 } else {
4375 Vec::new()
4376 };
4377
4378 this.update(&mut cx, |this, cx| {
4379 this.available_code_actions = if actions.is_empty() {
4380 None
4381 } else {
4382 Some((
4383 Location {
4384 buffer: start_buffer,
4385 range: start..end,
4386 },
4387 actions.into(),
4388 ))
4389 };
4390 cx.notify();
4391 })
4392 .log_err();
4393 }));
4394 None
4395 }
4396
4397 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4398 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4399 self.show_git_blame_inline = false;
4400
4401 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4402 cx.background_executor().timer(delay).await;
4403
4404 this.update(&mut cx, |this, cx| {
4405 this.show_git_blame_inline = true;
4406 cx.notify();
4407 })
4408 .log_err();
4409 }));
4410 }
4411 }
4412
4413 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4414 if self.pending_rename.is_some() {
4415 return None;
4416 }
4417
4418 let project = self.project.clone()?;
4419 let buffer = self.buffer.read(cx);
4420 let newest_selection = self.selections.newest_anchor().clone();
4421 let cursor_position = newest_selection.head();
4422 let (cursor_buffer, cursor_buffer_position) =
4423 buffer.text_anchor_for_position(cursor_position, cx)?;
4424 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4425 if cursor_buffer != tail_buffer {
4426 return None;
4427 }
4428
4429 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4430 cx.background_executor()
4431 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4432 .await;
4433
4434 let highlights = if let Some(highlights) = project
4435 .update(&mut cx, |project, cx| {
4436 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4437 })
4438 .log_err()
4439 {
4440 highlights.await.log_err()
4441 } else {
4442 None
4443 };
4444
4445 if let Some(highlights) = highlights {
4446 this.update(&mut cx, |this, cx| {
4447 if this.pending_rename.is_some() {
4448 return;
4449 }
4450
4451 let buffer_id = cursor_position.buffer_id;
4452 let buffer = this.buffer.read(cx);
4453 if !buffer
4454 .text_anchor_for_position(cursor_position, cx)
4455 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4456 {
4457 return;
4458 }
4459
4460 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4461 let mut write_ranges = Vec::new();
4462 let mut read_ranges = Vec::new();
4463 for highlight in highlights {
4464 for (excerpt_id, excerpt_range) in
4465 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4466 {
4467 let start = highlight
4468 .range
4469 .start
4470 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4471 let end = highlight
4472 .range
4473 .end
4474 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4475 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4476 continue;
4477 }
4478
4479 let range = Anchor {
4480 buffer_id,
4481 excerpt_id: excerpt_id,
4482 text_anchor: start,
4483 }..Anchor {
4484 buffer_id,
4485 excerpt_id,
4486 text_anchor: end,
4487 };
4488 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4489 write_ranges.push(range);
4490 } else {
4491 read_ranges.push(range);
4492 }
4493 }
4494 }
4495
4496 this.highlight_background::<DocumentHighlightRead>(
4497 &read_ranges,
4498 |theme| theme.editor_document_highlight_read_background,
4499 cx,
4500 );
4501 this.highlight_background::<DocumentHighlightWrite>(
4502 &write_ranges,
4503 |theme| theme.editor_document_highlight_write_background,
4504 cx,
4505 );
4506 cx.notify();
4507 })
4508 .log_err();
4509 }
4510 }));
4511 None
4512 }
4513
4514 fn refresh_inline_completion(
4515 &mut self,
4516 debounce: bool,
4517 cx: &mut ViewContext<Self>,
4518 ) -> Option<()> {
4519 let provider = self.inline_completion_provider()?;
4520 let cursor = self.selections.newest_anchor().head();
4521 let (buffer, cursor_buffer_position) =
4522 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4523 if !self.show_inline_completions
4524 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4525 {
4526 self.discard_inline_completion(false, cx);
4527 return None;
4528 }
4529
4530 self.update_visible_inline_completion(cx);
4531 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4532 Some(())
4533 }
4534
4535 fn cycle_inline_completion(
4536 &mut self,
4537 direction: Direction,
4538 cx: &mut ViewContext<Self>,
4539 ) -> Option<()> {
4540 let provider = self.inline_completion_provider()?;
4541 let cursor = self.selections.newest_anchor().head();
4542 let (buffer, cursor_buffer_position) =
4543 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4544 if !self.show_inline_completions
4545 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4546 {
4547 return None;
4548 }
4549
4550 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4551 self.update_visible_inline_completion(cx);
4552
4553 Some(())
4554 }
4555
4556 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4557 if !self.has_active_inline_completion(cx) {
4558 self.refresh_inline_completion(false, cx);
4559 return;
4560 }
4561
4562 self.update_visible_inline_completion(cx);
4563 }
4564
4565 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4566 self.show_cursor_names(cx);
4567 }
4568
4569 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4570 self.show_cursor_names = true;
4571 cx.notify();
4572 cx.spawn(|this, mut cx| async move {
4573 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4574 this.update(&mut cx, |this, cx| {
4575 this.show_cursor_names = false;
4576 cx.notify()
4577 })
4578 .ok()
4579 })
4580 .detach();
4581 }
4582
4583 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4584 if self.has_active_inline_completion(cx) {
4585 self.cycle_inline_completion(Direction::Next, cx);
4586 } else {
4587 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4588 if is_copilot_disabled {
4589 cx.propagate();
4590 }
4591 }
4592 }
4593
4594 pub fn previous_inline_completion(
4595 &mut self,
4596 _: &PreviousInlineCompletion,
4597 cx: &mut ViewContext<Self>,
4598 ) {
4599 if self.has_active_inline_completion(cx) {
4600 self.cycle_inline_completion(Direction::Prev, cx);
4601 } else {
4602 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4603 if is_copilot_disabled {
4604 cx.propagate();
4605 }
4606 }
4607 }
4608
4609 pub fn accept_inline_completion(
4610 &mut self,
4611 _: &AcceptInlineCompletion,
4612 cx: &mut ViewContext<Self>,
4613 ) {
4614 let Some(completion) = self.take_active_inline_completion(cx) else {
4615 return;
4616 };
4617 if let Some(provider) = self.inline_completion_provider() {
4618 provider.accept(cx);
4619 }
4620
4621 cx.emit(EditorEvent::InputHandled {
4622 utf16_range_to_replace: None,
4623 text: completion.text.to_string().into(),
4624 });
4625 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4626 self.refresh_inline_completion(true, cx);
4627 cx.notify();
4628 }
4629
4630 pub fn accept_partial_inline_completion(
4631 &mut self,
4632 _: &AcceptPartialInlineCompletion,
4633 cx: &mut ViewContext<Self>,
4634 ) {
4635 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4636 if let Some(completion) = self.take_active_inline_completion(cx) {
4637 let mut partial_completion = completion
4638 .text
4639 .chars()
4640 .by_ref()
4641 .take_while(|c| c.is_alphabetic())
4642 .collect::<String>();
4643 if partial_completion.is_empty() {
4644 partial_completion = completion
4645 .text
4646 .chars()
4647 .by_ref()
4648 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4649 .collect::<String>();
4650 }
4651
4652 cx.emit(EditorEvent::InputHandled {
4653 utf16_range_to_replace: None,
4654 text: partial_completion.clone().into(),
4655 });
4656 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4657 self.refresh_inline_completion(true, cx);
4658 cx.notify();
4659 }
4660 }
4661 }
4662
4663 fn discard_inline_completion(
4664 &mut self,
4665 should_report_inline_completion_event: bool,
4666 cx: &mut ViewContext<Self>,
4667 ) -> bool {
4668 if let Some(provider) = self.inline_completion_provider() {
4669 provider.discard(should_report_inline_completion_event, cx);
4670 }
4671
4672 self.take_active_inline_completion(cx).is_some()
4673 }
4674
4675 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4676 if let Some(completion) = self.active_inline_completion.as_ref() {
4677 let buffer = self.buffer.read(cx).read(cx);
4678 completion.position.is_valid(&buffer)
4679 } else {
4680 false
4681 }
4682 }
4683
4684 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4685 let completion = self.active_inline_completion.take()?;
4686 self.display_map.update(cx, |map, cx| {
4687 map.splice_inlays(vec![completion.id], Default::default(), cx);
4688 });
4689 let buffer = self.buffer.read(cx).read(cx);
4690
4691 if completion.position.is_valid(&buffer) {
4692 Some(completion)
4693 } else {
4694 None
4695 }
4696 }
4697
4698 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4699 let selection = self.selections.newest_anchor();
4700 let cursor = selection.head();
4701
4702 if self.context_menu.read().is_none()
4703 && self.completion_tasks.is_empty()
4704 && selection.start == selection.end
4705 {
4706 if let Some(provider) = self.inline_completion_provider() {
4707 if let Some((buffer, cursor_buffer_position)) =
4708 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4709 {
4710 if let Some(text) =
4711 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4712 {
4713 let text = Rope::from(text);
4714 let mut to_remove = Vec::new();
4715 if let Some(completion) = self.active_inline_completion.take() {
4716 to_remove.push(completion.id);
4717 }
4718
4719 let completion_inlay =
4720 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4721 self.active_inline_completion = Some(completion_inlay.clone());
4722 self.display_map.update(cx, move |map, cx| {
4723 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4724 });
4725 cx.notify();
4726 return;
4727 }
4728 }
4729 }
4730 }
4731
4732 self.discard_inline_completion(false, cx);
4733 }
4734
4735 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4736 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4737 }
4738
4739 fn render_code_actions_indicator(
4740 &self,
4741 _style: &EditorStyle,
4742 row: DisplayRow,
4743 is_active: bool,
4744 cx: &mut ViewContext<Self>,
4745 ) -> Option<IconButton> {
4746 if self.available_code_actions.is_some() {
4747 Some(
4748 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4749 .icon_size(IconSize::XSmall)
4750 .size(ui::ButtonSize::None)
4751 .icon_color(Color::Muted)
4752 .selected(is_active)
4753 .on_click(cx.listener(move |editor, _e, cx| {
4754 editor.focus(cx);
4755 editor.toggle_code_actions(
4756 &ToggleCodeActions {
4757 deployed_from_indicator: Some(row),
4758 },
4759 cx,
4760 );
4761 })),
4762 )
4763 } else {
4764 None
4765 }
4766 }
4767
4768 fn clear_tasks(&mut self) {
4769 self.tasks.clear()
4770 }
4771
4772 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4773 if let Some(_) = self.tasks.insert(key, value) {
4774 // This case should hopefully be rare, but just in case...
4775 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4776 }
4777 }
4778
4779 fn render_run_indicator(
4780 &self,
4781 _style: &EditorStyle,
4782 is_active: bool,
4783 row: DisplayRow,
4784 cx: &mut ViewContext<Self>,
4785 ) -> IconButton {
4786 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4787 .icon_size(IconSize::XSmall)
4788 .size(ui::ButtonSize::None)
4789 .icon_color(Color::Muted)
4790 .selected(is_active)
4791 .on_click(cx.listener(move |editor, _e, cx| {
4792 editor.focus(cx);
4793 editor.toggle_code_actions(
4794 &ToggleCodeActions {
4795 deployed_from_indicator: Some(row),
4796 },
4797 cx,
4798 );
4799 }))
4800 }
4801
4802 pub fn context_menu_visible(&self) -> bool {
4803 self.context_menu
4804 .read()
4805 .as_ref()
4806 .map_or(false, |menu| menu.visible())
4807 }
4808
4809 fn render_context_menu(
4810 &self,
4811 cursor_position: DisplayPoint,
4812 style: &EditorStyle,
4813 max_height: Pixels,
4814 cx: &mut ViewContext<Editor>,
4815 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4816 self.context_menu.read().as_ref().map(|menu| {
4817 menu.render(
4818 cursor_position,
4819 style,
4820 max_height,
4821 self.workspace.as_ref().map(|(w, _)| w.clone()),
4822 cx,
4823 )
4824 })
4825 }
4826
4827 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4828 cx.notify();
4829 self.completion_tasks.clear();
4830 let context_menu = self.context_menu.write().take();
4831 if context_menu.is_some() {
4832 self.update_visible_inline_completion(cx);
4833 }
4834 context_menu
4835 }
4836
4837 pub fn insert_snippet(
4838 &mut self,
4839 insertion_ranges: &[Range<usize>],
4840 snippet: Snippet,
4841 cx: &mut ViewContext<Self>,
4842 ) -> Result<()> {
4843 struct Tabstop<T> {
4844 is_end_tabstop: bool,
4845 ranges: Vec<Range<T>>,
4846 }
4847
4848 let tabstops = self.buffer.update(cx, |buffer, cx| {
4849 let snippet_text: Arc<str> = snippet.text.clone().into();
4850 buffer.edit(
4851 insertion_ranges
4852 .iter()
4853 .cloned()
4854 .map(|range| (range, snippet_text.clone())),
4855 Some(AutoindentMode::EachLine),
4856 cx,
4857 );
4858
4859 let snapshot = &*buffer.read(cx);
4860 let snippet = &snippet;
4861 snippet
4862 .tabstops
4863 .iter()
4864 .map(|tabstop| {
4865 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4866 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4867 });
4868 let mut tabstop_ranges = tabstop
4869 .iter()
4870 .flat_map(|tabstop_range| {
4871 let mut delta = 0_isize;
4872 insertion_ranges.iter().map(move |insertion_range| {
4873 let insertion_start = insertion_range.start as isize + delta;
4874 delta +=
4875 snippet.text.len() as isize - insertion_range.len() as isize;
4876
4877 let start = ((insertion_start + tabstop_range.start) as usize)
4878 .min(snapshot.len());
4879 let end = ((insertion_start + tabstop_range.end) as usize)
4880 .min(snapshot.len());
4881 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4882 })
4883 })
4884 .collect::<Vec<_>>();
4885 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4886
4887 Tabstop {
4888 is_end_tabstop,
4889 ranges: tabstop_ranges,
4890 }
4891 })
4892 .collect::<Vec<_>>()
4893 });
4894
4895 if let Some(tabstop) = tabstops.first() {
4896 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4897 s.select_ranges(tabstop.ranges.iter().cloned());
4898 });
4899
4900 // If we're already at the last tabstop and it's at the end of the snippet,
4901 // we're done, we don't need to keep the state around.
4902 if !tabstop.is_end_tabstop {
4903 let ranges = tabstops
4904 .into_iter()
4905 .map(|tabstop| tabstop.ranges)
4906 .collect::<Vec<_>>();
4907 self.snippet_stack.push(SnippetState {
4908 active_index: 0,
4909 ranges,
4910 });
4911 }
4912
4913 // Check whether the just-entered snippet ends with an auto-closable bracket.
4914 if self.autoclose_regions.is_empty() {
4915 let snapshot = self.buffer.read(cx).snapshot(cx);
4916 for selection in &mut self.selections.all::<Point>(cx) {
4917 let selection_head = selection.head();
4918 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4919 continue;
4920 };
4921
4922 let mut bracket_pair = None;
4923 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4924 let prev_chars = snapshot
4925 .reversed_chars_at(selection_head)
4926 .collect::<String>();
4927 for (pair, enabled) in scope.brackets() {
4928 if enabled
4929 && pair.close
4930 && prev_chars.starts_with(pair.start.as_str())
4931 && next_chars.starts_with(pair.end.as_str())
4932 {
4933 bracket_pair = Some(pair.clone());
4934 break;
4935 }
4936 }
4937 if let Some(pair) = bracket_pair {
4938 let start = snapshot.anchor_after(selection_head);
4939 let end = snapshot.anchor_after(selection_head);
4940 self.autoclose_regions.push(AutocloseRegion {
4941 selection_id: selection.id,
4942 range: start..end,
4943 pair,
4944 });
4945 }
4946 }
4947 }
4948 }
4949 Ok(())
4950 }
4951
4952 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4953 self.move_to_snippet_tabstop(Bias::Right, cx)
4954 }
4955
4956 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4957 self.move_to_snippet_tabstop(Bias::Left, cx)
4958 }
4959
4960 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4961 if let Some(mut snippet) = self.snippet_stack.pop() {
4962 match bias {
4963 Bias::Left => {
4964 if snippet.active_index > 0 {
4965 snippet.active_index -= 1;
4966 } else {
4967 self.snippet_stack.push(snippet);
4968 return false;
4969 }
4970 }
4971 Bias::Right => {
4972 if snippet.active_index + 1 < snippet.ranges.len() {
4973 snippet.active_index += 1;
4974 } else {
4975 self.snippet_stack.push(snippet);
4976 return false;
4977 }
4978 }
4979 }
4980 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4982 s.select_anchor_ranges(current_ranges.iter().cloned())
4983 });
4984 // If snippet state is not at the last tabstop, push it back on the stack
4985 if snippet.active_index + 1 < snippet.ranges.len() {
4986 self.snippet_stack.push(snippet);
4987 }
4988 return true;
4989 }
4990 }
4991
4992 false
4993 }
4994
4995 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4996 self.transact(cx, |this, cx| {
4997 this.select_all(&SelectAll, cx);
4998 this.insert("", cx);
4999 });
5000 }
5001
5002 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5003 self.transact(cx, |this, cx| {
5004 this.select_autoclose_pair(cx);
5005 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5006 if !this.selections.line_mode {
5007 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5008 for selection in &mut selections {
5009 if selection.is_empty() {
5010 let old_head = selection.head();
5011 let mut new_head =
5012 movement::left(&display_map, old_head.to_display_point(&display_map))
5013 .to_point(&display_map);
5014 if let Some((buffer, line_buffer_range)) = display_map
5015 .buffer_snapshot
5016 .buffer_line_for_row(MultiBufferRow(old_head.row))
5017 {
5018 let indent_size =
5019 buffer.indent_size_for_line(line_buffer_range.start.row);
5020 let indent_len = match indent_size.kind {
5021 IndentKind::Space => {
5022 buffer.settings_at(line_buffer_range.start, cx).tab_size
5023 }
5024 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5025 };
5026 if old_head.column <= indent_size.len && old_head.column > 0 {
5027 let indent_len = indent_len.get();
5028 new_head = cmp::min(
5029 new_head,
5030 MultiBufferPoint::new(
5031 old_head.row,
5032 ((old_head.column - 1) / indent_len) * indent_len,
5033 ),
5034 );
5035 }
5036 }
5037
5038 selection.set_head(new_head, SelectionGoal::None);
5039 }
5040 }
5041 }
5042
5043 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5044 this.insert("", cx);
5045 this.refresh_inline_completion(true, cx);
5046 });
5047 }
5048
5049 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5050 self.transact(cx, |this, cx| {
5051 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5052 let line_mode = s.line_mode;
5053 s.move_with(|map, selection| {
5054 if selection.is_empty() && !line_mode {
5055 let cursor = movement::right(map, selection.head());
5056 selection.end = cursor;
5057 selection.reversed = true;
5058 selection.goal = SelectionGoal::None;
5059 }
5060 })
5061 });
5062 this.insert("", cx);
5063 this.refresh_inline_completion(true, cx);
5064 });
5065 }
5066
5067 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5068 if self.move_to_prev_snippet_tabstop(cx) {
5069 return;
5070 }
5071
5072 self.outdent(&Outdent, cx);
5073 }
5074
5075 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5076 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5077 return;
5078 }
5079
5080 let mut selections = self.selections.all_adjusted(cx);
5081 let buffer = self.buffer.read(cx);
5082 let snapshot = buffer.snapshot(cx);
5083 let rows_iter = selections.iter().map(|s| s.head().row);
5084 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5085
5086 let mut edits = Vec::new();
5087 let mut prev_edited_row = 0;
5088 let mut row_delta = 0;
5089 for selection in &mut selections {
5090 if selection.start.row != prev_edited_row {
5091 row_delta = 0;
5092 }
5093 prev_edited_row = selection.end.row;
5094
5095 // If the selection is non-empty, then increase the indentation of the selected lines.
5096 if !selection.is_empty() {
5097 row_delta =
5098 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5099 continue;
5100 }
5101
5102 // If the selection is empty and the cursor is in the leading whitespace before the
5103 // suggested indentation, then auto-indent the line.
5104 let cursor = selection.head();
5105 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5106 if let Some(suggested_indent) =
5107 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5108 {
5109 if cursor.column < suggested_indent.len
5110 && cursor.column <= current_indent.len
5111 && current_indent.len <= suggested_indent.len
5112 {
5113 selection.start = Point::new(cursor.row, suggested_indent.len);
5114 selection.end = selection.start;
5115 if row_delta == 0 {
5116 edits.extend(Buffer::edit_for_indent_size_adjustment(
5117 cursor.row,
5118 current_indent,
5119 suggested_indent,
5120 ));
5121 row_delta = suggested_indent.len - current_indent.len;
5122 }
5123 continue;
5124 }
5125 }
5126
5127 // Otherwise, insert a hard or soft tab.
5128 let settings = buffer.settings_at(cursor, cx);
5129 let tab_size = if settings.hard_tabs {
5130 IndentSize::tab()
5131 } else {
5132 let tab_size = settings.tab_size.get();
5133 let char_column = snapshot
5134 .text_for_range(Point::new(cursor.row, 0)..cursor)
5135 .flat_map(str::chars)
5136 .count()
5137 + row_delta as usize;
5138 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5139 IndentSize::spaces(chars_to_next_tab_stop)
5140 };
5141 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5142 selection.end = selection.start;
5143 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5144 row_delta += tab_size.len;
5145 }
5146
5147 self.transact(cx, |this, cx| {
5148 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5149 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5150 this.refresh_inline_completion(true, cx);
5151 });
5152 }
5153
5154 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5155 if self.read_only(cx) {
5156 return;
5157 }
5158 let mut selections = self.selections.all::<Point>(cx);
5159 let mut prev_edited_row = 0;
5160 let mut row_delta = 0;
5161 let mut edits = Vec::new();
5162 let buffer = self.buffer.read(cx);
5163 let snapshot = buffer.snapshot(cx);
5164 for selection in &mut selections {
5165 if selection.start.row != prev_edited_row {
5166 row_delta = 0;
5167 }
5168 prev_edited_row = selection.end.row;
5169
5170 row_delta =
5171 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5172 }
5173
5174 self.transact(cx, |this, cx| {
5175 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5176 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5177 });
5178 }
5179
5180 fn indent_selection(
5181 buffer: &MultiBuffer,
5182 snapshot: &MultiBufferSnapshot,
5183 selection: &mut Selection<Point>,
5184 edits: &mut Vec<(Range<Point>, String)>,
5185 delta_for_start_row: u32,
5186 cx: &AppContext,
5187 ) -> u32 {
5188 let settings = buffer.settings_at(selection.start, cx);
5189 let tab_size = settings.tab_size.get();
5190 let indent_kind = if settings.hard_tabs {
5191 IndentKind::Tab
5192 } else {
5193 IndentKind::Space
5194 };
5195 let mut start_row = selection.start.row;
5196 let mut end_row = selection.end.row + 1;
5197
5198 // If a selection ends at the beginning of a line, don't indent
5199 // that last line.
5200 if selection.end.column == 0 && selection.end.row > selection.start.row {
5201 end_row -= 1;
5202 }
5203
5204 // Avoid re-indenting a row that has already been indented by a
5205 // previous selection, but still update this selection's column
5206 // to reflect that indentation.
5207 if delta_for_start_row > 0 {
5208 start_row += 1;
5209 selection.start.column += delta_for_start_row;
5210 if selection.end.row == selection.start.row {
5211 selection.end.column += delta_for_start_row;
5212 }
5213 }
5214
5215 let mut delta_for_end_row = 0;
5216 let has_multiple_rows = start_row + 1 != end_row;
5217 for row in start_row..end_row {
5218 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5219 let indent_delta = match (current_indent.kind, indent_kind) {
5220 (IndentKind::Space, IndentKind::Space) => {
5221 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5222 IndentSize::spaces(columns_to_next_tab_stop)
5223 }
5224 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5225 (_, IndentKind::Tab) => IndentSize::tab(),
5226 };
5227
5228 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5229 0
5230 } else {
5231 selection.start.column
5232 };
5233 let row_start = Point::new(row, start);
5234 edits.push((
5235 row_start..row_start,
5236 indent_delta.chars().collect::<String>(),
5237 ));
5238
5239 // Update this selection's endpoints to reflect the indentation.
5240 if row == selection.start.row {
5241 selection.start.column += indent_delta.len;
5242 }
5243 if row == selection.end.row {
5244 selection.end.column += indent_delta.len;
5245 delta_for_end_row = indent_delta.len;
5246 }
5247 }
5248
5249 if selection.start.row == selection.end.row {
5250 delta_for_start_row + delta_for_end_row
5251 } else {
5252 delta_for_end_row
5253 }
5254 }
5255
5256 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5257 if self.read_only(cx) {
5258 return;
5259 }
5260 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5261 let selections = self.selections.all::<Point>(cx);
5262 let mut deletion_ranges = Vec::new();
5263 let mut last_outdent = None;
5264 {
5265 let buffer = self.buffer.read(cx);
5266 let snapshot = buffer.snapshot(cx);
5267 for selection in &selections {
5268 let settings = buffer.settings_at(selection.start, cx);
5269 let tab_size = settings.tab_size.get();
5270 let mut rows = selection.spanned_rows(false, &display_map);
5271
5272 // Avoid re-outdenting a row that has already been outdented by a
5273 // previous selection.
5274 if let Some(last_row) = last_outdent {
5275 if last_row == rows.start {
5276 rows.start = rows.start.next_row();
5277 }
5278 }
5279 let has_multiple_rows = rows.len() > 1;
5280 for row in rows.iter_rows() {
5281 let indent_size = snapshot.indent_size_for_line(row);
5282 if indent_size.len > 0 {
5283 let deletion_len = match indent_size.kind {
5284 IndentKind::Space => {
5285 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5286 if columns_to_prev_tab_stop == 0 {
5287 tab_size
5288 } else {
5289 columns_to_prev_tab_stop
5290 }
5291 }
5292 IndentKind::Tab => 1,
5293 };
5294 let start = if has_multiple_rows
5295 || deletion_len > selection.start.column
5296 || indent_size.len < selection.start.column
5297 {
5298 0
5299 } else {
5300 selection.start.column - deletion_len
5301 };
5302 deletion_ranges.push(
5303 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5304 );
5305 last_outdent = Some(row);
5306 }
5307 }
5308 }
5309 }
5310
5311 self.transact(cx, |this, cx| {
5312 this.buffer.update(cx, |buffer, cx| {
5313 let empty_str: Arc<str> = "".into();
5314 buffer.edit(
5315 deletion_ranges
5316 .into_iter()
5317 .map(|range| (range, empty_str.clone())),
5318 None,
5319 cx,
5320 );
5321 });
5322 let selections = this.selections.all::<usize>(cx);
5323 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5324 });
5325 }
5326
5327 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5328 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5329 let selections = self.selections.all::<Point>(cx);
5330
5331 let mut new_cursors = Vec::new();
5332 let mut edit_ranges = Vec::new();
5333 let mut selections = selections.iter().peekable();
5334 while let Some(selection) = selections.next() {
5335 let mut rows = selection.spanned_rows(false, &display_map);
5336 let goal_display_column = selection.head().to_display_point(&display_map).column();
5337
5338 // Accumulate contiguous regions of rows that we want to delete.
5339 while let Some(next_selection) = selections.peek() {
5340 let next_rows = next_selection.spanned_rows(false, &display_map);
5341 if next_rows.start <= rows.end {
5342 rows.end = next_rows.end;
5343 selections.next().unwrap();
5344 } else {
5345 break;
5346 }
5347 }
5348
5349 let buffer = &display_map.buffer_snapshot;
5350 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5351 let edit_end;
5352 let cursor_buffer_row;
5353 if buffer.max_point().row >= rows.end.0 {
5354 // If there's a line after the range, delete the \n from the end of the row range
5355 // and position the cursor on the next line.
5356 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5357 cursor_buffer_row = rows.end;
5358 } else {
5359 // If there isn't a line after the range, delete the \n from the line before the
5360 // start of the row range and position the cursor there.
5361 edit_start = edit_start.saturating_sub(1);
5362 edit_end = buffer.len();
5363 cursor_buffer_row = rows.start.previous_row();
5364 }
5365
5366 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5367 *cursor.column_mut() =
5368 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5369
5370 new_cursors.push((
5371 selection.id,
5372 buffer.anchor_after(cursor.to_point(&display_map)),
5373 ));
5374 edit_ranges.push(edit_start..edit_end);
5375 }
5376
5377 self.transact(cx, |this, cx| {
5378 let buffer = this.buffer.update(cx, |buffer, cx| {
5379 let empty_str: Arc<str> = "".into();
5380 buffer.edit(
5381 edit_ranges
5382 .into_iter()
5383 .map(|range| (range, empty_str.clone())),
5384 None,
5385 cx,
5386 );
5387 buffer.snapshot(cx)
5388 });
5389 let new_selections = new_cursors
5390 .into_iter()
5391 .map(|(id, cursor)| {
5392 let cursor = cursor.to_point(&buffer);
5393 Selection {
5394 id,
5395 start: cursor,
5396 end: cursor,
5397 reversed: false,
5398 goal: SelectionGoal::None,
5399 }
5400 })
5401 .collect();
5402
5403 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5404 s.select(new_selections);
5405 });
5406 });
5407 }
5408
5409 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5410 if self.read_only(cx) {
5411 return;
5412 }
5413 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5414 for selection in self.selections.all::<Point>(cx) {
5415 let start = MultiBufferRow(selection.start.row);
5416 let end = if selection.start.row == selection.end.row {
5417 MultiBufferRow(selection.start.row + 1)
5418 } else {
5419 MultiBufferRow(selection.end.row)
5420 };
5421
5422 if let Some(last_row_range) = row_ranges.last_mut() {
5423 if start <= last_row_range.end {
5424 last_row_range.end = end;
5425 continue;
5426 }
5427 }
5428 row_ranges.push(start..end);
5429 }
5430
5431 let snapshot = self.buffer.read(cx).snapshot(cx);
5432 let mut cursor_positions = Vec::new();
5433 for row_range in &row_ranges {
5434 let anchor = snapshot.anchor_before(Point::new(
5435 row_range.end.previous_row().0,
5436 snapshot.line_len(row_range.end.previous_row()),
5437 ));
5438 cursor_positions.push(anchor..anchor);
5439 }
5440
5441 self.transact(cx, |this, cx| {
5442 for row_range in row_ranges.into_iter().rev() {
5443 for row in row_range.iter_rows().rev() {
5444 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5445 let next_line_row = row.next_row();
5446 let indent = snapshot.indent_size_for_line(next_line_row);
5447 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5448
5449 let replace = if snapshot.line_len(next_line_row) > indent.len {
5450 " "
5451 } else {
5452 ""
5453 };
5454
5455 this.buffer.update(cx, |buffer, cx| {
5456 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5457 });
5458 }
5459 }
5460
5461 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5462 s.select_anchor_ranges(cursor_positions)
5463 });
5464 });
5465 }
5466
5467 pub fn sort_lines_case_sensitive(
5468 &mut self,
5469 _: &SortLinesCaseSensitive,
5470 cx: &mut ViewContext<Self>,
5471 ) {
5472 self.manipulate_lines(cx, |lines| lines.sort())
5473 }
5474
5475 pub fn sort_lines_case_insensitive(
5476 &mut self,
5477 _: &SortLinesCaseInsensitive,
5478 cx: &mut ViewContext<Self>,
5479 ) {
5480 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5481 }
5482
5483 pub fn unique_lines_case_insensitive(
5484 &mut self,
5485 _: &UniqueLinesCaseInsensitive,
5486 cx: &mut ViewContext<Self>,
5487 ) {
5488 self.manipulate_lines(cx, |lines| {
5489 let mut seen = HashSet::default();
5490 lines.retain(|line| seen.insert(line.to_lowercase()));
5491 })
5492 }
5493
5494 pub fn unique_lines_case_sensitive(
5495 &mut self,
5496 _: &UniqueLinesCaseSensitive,
5497 cx: &mut ViewContext<Self>,
5498 ) {
5499 self.manipulate_lines(cx, |lines| {
5500 let mut seen = HashSet::default();
5501 lines.retain(|line| seen.insert(*line));
5502 })
5503 }
5504
5505 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5506 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5507 if !revert_changes.is_empty() {
5508 self.transact(cx, |editor, cx| {
5509 editor.buffer().update(cx, |multi_buffer, cx| {
5510 for (buffer_id, changes) in revert_changes {
5511 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5512 buffer.update(cx, |buffer, cx| {
5513 buffer.edit(
5514 changes.into_iter().map(|(range, text)| {
5515 (range, text.to_string().map(Arc::<str>::from))
5516 }),
5517 None,
5518 cx,
5519 );
5520 });
5521 }
5522 }
5523 });
5524 editor.change_selections(None, cx, |selections| selections.refresh());
5525 });
5526 }
5527 }
5528
5529 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5530 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5531 let project_path = buffer.read(cx).project_path(cx)?;
5532 let project = self.project.as_ref()?.read(cx);
5533 let entry = project.entry_for_path(&project_path, cx)?;
5534 let abs_path = project.absolute_path(&project_path, cx)?;
5535 let parent = if entry.is_symlink {
5536 abs_path.canonicalize().ok()?
5537 } else {
5538 abs_path
5539 }
5540 .parent()?
5541 .to_path_buf();
5542 Some(parent)
5543 }) {
5544 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5545 }
5546 }
5547
5548 fn gather_revert_changes(
5549 &mut self,
5550 selections: &[Selection<Anchor>],
5551 cx: &mut ViewContext<'_, Editor>,
5552 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5553 let mut revert_changes = HashMap::default();
5554 self.buffer.update(cx, |multi_buffer, cx| {
5555 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5556 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5557 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5558 }
5559 });
5560 revert_changes
5561 }
5562
5563 fn prepare_revert_change(
5564 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5565 multi_buffer: &MultiBuffer,
5566 hunk: &DiffHunk<MultiBufferRow>,
5567 cx: &mut AppContext,
5568 ) -> Option<()> {
5569 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5570 let buffer = buffer.read(cx);
5571 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5572 let buffer_snapshot = buffer.snapshot();
5573 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5574 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5575 probe
5576 .0
5577 .start
5578 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5579 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5580 }) {
5581 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5582 Some(())
5583 } else {
5584 None
5585 }
5586 }
5587
5588 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5589 self.manipulate_lines(cx, |lines| lines.reverse())
5590 }
5591
5592 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5593 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5594 }
5595
5596 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5597 where
5598 Fn: FnMut(&mut Vec<&str>),
5599 {
5600 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5601 let buffer = self.buffer.read(cx).snapshot(cx);
5602
5603 let mut edits = Vec::new();
5604
5605 let selections = self.selections.all::<Point>(cx);
5606 let mut selections = selections.iter().peekable();
5607 let mut contiguous_row_selections = Vec::new();
5608 let mut new_selections = Vec::new();
5609 let mut added_lines = 0;
5610 let mut removed_lines = 0;
5611
5612 while let Some(selection) = selections.next() {
5613 let (start_row, end_row) = consume_contiguous_rows(
5614 &mut contiguous_row_selections,
5615 selection,
5616 &display_map,
5617 &mut selections,
5618 );
5619
5620 let start_point = Point::new(start_row.0, 0);
5621 let end_point = Point::new(
5622 end_row.previous_row().0,
5623 buffer.line_len(end_row.previous_row()),
5624 );
5625 let text = buffer
5626 .text_for_range(start_point..end_point)
5627 .collect::<String>();
5628
5629 let mut lines = text.split('\n').collect_vec();
5630
5631 let lines_before = lines.len();
5632 callback(&mut lines);
5633 let lines_after = lines.len();
5634
5635 edits.push((start_point..end_point, lines.join("\n")));
5636
5637 // Selections must change based on added and removed line count
5638 let start_row =
5639 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5640 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5641 new_selections.push(Selection {
5642 id: selection.id,
5643 start: start_row,
5644 end: end_row,
5645 goal: SelectionGoal::None,
5646 reversed: selection.reversed,
5647 });
5648
5649 if lines_after > lines_before {
5650 added_lines += lines_after - lines_before;
5651 } else if lines_before > lines_after {
5652 removed_lines += lines_before - lines_after;
5653 }
5654 }
5655
5656 self.transact(cx, |this, cx| {
5657 let buffer = this.buffer.update(cx, |buffer, cx| {
5658 buffer.edit(edits, None, cx);
5659 buffer.snapshot(cx)
5660 });
5661
5662 // Recalculate offsets on newly edited buffer
5663 let new_selections = new_selections
5664 .iter()
5665 .map(|s| {
5666 let start_point = Point::new(s.start.0, 0);
5667 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5668 Selection {
5669 id: s.id,
5670 start: buffer.point_to_offset(start_point),
5671 end: buffer.point_to_offset(end_point),
5672 goal: s.goal,
5673 reversed: s.reversed,
5674 }
5675 })
5676 .collect();
5677
5678 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5679 s.select(new_selections);
5680 });
5681
5682 this.request_autoscroll(Autoscroll::fit(), cx);
5683 });
5684 }
5685
5686 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5687 self.manipulate_text(cx, |text| text.to_uppercase())
5688 }
5689
5690 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5691 self.manipulate_text(cx, |text| text.to_lowercase())
5692 }
5693
5694 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
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::Title))
5700 .join("\n")
5701 })
5702 }
5703
5704 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5705 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5706 }
5707
5708 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5709 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5710 }
5711
5712 pub fn convert_to_upper_camel_case(
5713 &mut self,
5714 _: &ConvertToUpperCamelCase,
5715 cx: &mut ViewContext<Self>,
5716 ) {
5717 self.manipulate_text(cx, |text| {
5718 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5719 // https://github.com/rutrum/convert-case/issues/16
5720 text.split('\n')
5721 .map(|line| line.to_case(Case::UpperCamel))
5722 .join("\n")
5723 })
5724 }
5725
5726 pub fn convert_to_lower_camel_case(
5727 &mut self,
5728 _: &ConvertToLowerCamelCase,
5729 cx: &mut ViewContext<Self>,
5730 ) {
5731 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5732 }
5733
5734 pub fn convert_to_opposite_case(
5735 &mut self,
5736 _: &ConvertToOppositeCase,
5737 cx: &mut ViewContext<Self>,
5738 ) {
5739 self.manipulate_text(cx, |text| {
5740 text.chars()
5741 .fold(String::with_capacity(text.len()), |mut t, c| {
5742 if c.is_uppercase() {
5743 t.extend(c.to_lowercase());
5744 } else {
5745 t.extend(c.to_uppercase());
5746 }
5747 t
5748 })
5749 })
5750 }
5751
5752 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5753 where
5754 Fn: FnMut(&str) -> String,
5755 {
5756 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5757 let buffer = self.buffer.read(cx).snapshot(cx);
5758
5759 let mut new_selections = Vec::new();
5760 let mut edits = Vec::new();
5761 let mut selection_adjustment = 0i32;
5762
5763 for selection in self.selections.all::<usize>(cx) {
5764 let selection_is_empty = selection.is_empty();
5765
5766 let (start, end) = if selection_is_empty {
5767 let word_range = movement::surrounding_word(
5768 &display_map,
5769 selection.start.to_display_point(&display_map),
5770 );
5771 let start = word_range.start.to_offset(&display_map, Bias::Left);
5772 let end = word_range.end.to_offset(&display_map, Bias::Left);
5773 (start, end)
5774 } else {
5775 (selection.start, selection.end)
5776 };
5777
5778 let text = buffer.text_for_range(start..end).collect::<String>();
5779 let old_length = text.len() as i32;
5780 let text = callback(&text);
5781
5782 new_selections.push(Selection {
5783 start: (start as i32 - selection_adjustment) as usize,
5784 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5785 goal: SelectionGoal::None,
5786 ..selection
5787 });
5788
5789 selection_adjustment += old_length - text.len() as i32;
5790
5791 edits.push((start..end, text));
5792 }
5793
5794 self.transact(cx, |this, cx| {
5795 this.buffer.update(cx, |buffer, cx| {
5796 buffer.edit(edits, None, cx);
5797 });
5798
5799 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5800 s.select(new_selections);
5801 });
5802
5803 this.request_autoscroll(Autoscroll::fit(), cx);
5804 });
5805 }
5806
5807 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5809 let buffer = &display_map.buffer_snapshot;
5810 let selections = self.selections.all::<Point>(cx);
5811
5812 let mut edits = Vec::new();
5813 let mut selections_iter = selections.iter().peekable();
5814 while let Some(selection) = selections_iter.next() {
5815 // Avoid duplicating the same lines twice.
5816 let mut rows = selection.spanned_rows(false, &display_map);
5817
5818 while let Some(next_selection) = selections_iter.peek() {
5819 let next_rows = next_selection.spanned_rows(false, &display_map);
5820 if next_rows.start < rows.end {
5821 rows.end = next_rows.end;
5822 selections_iter.next().unwrap();
5823 } else {
5824 break;
5825 }
5826 }
5827
5828 // Copy the text from the selected row region and splice it either at the start
5829 // or end of the region.
5830 let start = Point::new(rows.start.0, 0);
5831 let end = Point::new(
5832 rows.end.previous_row().0,
5833 buffer.line_len(rows.end.previous_row()),
5834 );
5835 let text = buffer
5836 .text_for_range(start..end)
5837 .chain(Some("\n"))
5838 .collect::<String>();
5839 let insert_location = if upwards {
5840 Point::new(rows.end.0, 0)
5841 } else {
5842 start
5843 };
5844 edits.push((insert_location..insert_location, text));
5845 }
5846
5847 self.transact(cx, |this, cx| {
5848 this.buffer.update(cx, |buffer, cx| {
5849 buffer.edit(edits, None, cx);
5850 });
5851
5852 this.request_autoscroll(Autoscroll::fit(), cx);
5853 });
5854 }
5855
5856 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5857 self.duplicate_line(true, cx);
5858 }
5859
5860 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5861 self.duplicate_line(false, cx);
5862 }
5863
5864 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5865 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5866 let buffer = self.buffer.read(cx).snapshot(cx);
5867
5868 let mut edits = Vec::new();
5869 let mut unfold_ranges = Vec::new();
5870 let mut refold_ranges = Vec::new();
5871
5872 let selections = self.selections.all::<Point>(cx);
5873 let mut selections = selections.iter().peekable();
5874 let mut contiguous_row_selections = Vec::new();
5875 let mut new_selections = Vec::new();
5876
5877 while let Some(selection) = selections.next() {
5878 // Find all the selections that span a contiguous row range
5879 let (start_row, end_row) = consume_contiguous_rows(
5880 &mut contiguous_row_selections,
5881 selection,
5882 &display_map,
5883 &mut selections,
5884 );
5885
5886 // Move the text spanned by the row range to be before the line preceding the row range
5887 if start_row.0 > 0 {
5888 let range_to_move = Point::new(
5889 start_row.previous_row().0,
5890 buffer.line_len(start_row.previous_row()),
5891 )
5892 ..Point::new(
5893 end_row.previous_row().0,
5894 buffer.line_len(end_row.previous_row()),
5895 );
5896 let insertion_point = display_map
5897 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5898 .0;
5899
5900 // Don't move lines across excerpts
5901 if buffer
5902 .excerpt_boundaries_in_range((
5903 Bound::Excluded(insertion_point),
5904 Bound::Included(range_to_move.end),
5905 ))
5906 .next()
5907 .is_none()
5908 {
5909 let text = buffer
5910 .text_for_range(range_to_move.clone())
5911 .flat_map(|s| s.chars())
5912 .skip(1)
5913 .chain(['\n'])
5914 .collect::<String>();
5915
5916 edits.push((
5917 buffer.anchor_after(range_to_move.start)
5918 ..buffer.anchor_before(range_to_move.end),
5919 String::new(),
5920 ));
5921 let insertion_anchor = buffer.anchor_after(insertion_point);
5922 edits.push((insertion_anchor..insertion_anchor, text));
5923
5924 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5925
5926 // Move selections up
5927 new_selections.extend(contiguous_row_selections.drain(..).map(
5928 |mut selection| {
5929 selection.start.row -= row_delta;
5930 selection.end.row -= row_delta;
5931 selection
5932 },
5933 ));
5934
5935 // Move folds up
5936 unfold_ranges.push(range_to_move.clone());
5937 for fold in display_map.folds_in_range(
5938 buffer.anchor_before(range_to_move.start)
5939 ..buffer.anchor_after(range_to_move.end),
5940 ) {
5941 let mut start = fold.range.start.to_point(&buffer);
5942 let mut end = fold.range.end.to_point(&buffer);
5943 start.row -= row_delta;
5944 end.row -= row_delta;
5945 refold_ranges.push((start..end, fold.placeholder.clone()));
5946 }
5947 }
5948 }
5949
5950 // If we didn't move line(s), preserve the existing selections
5951 new_selections.append(&mut contiguous_row_selections);
5952 }
5953
5954 self.transact(cx, |this, cx| {
5955 this.unfold_ranges(unfold_ranges, true, true, cx);
5956 this.buffer.update(cx, |buffer, cx| {
5957 for (range, text) in edits {
5958 buffer.edit([(range, text)], None, cx);
5959 }
5960 });
5961 this.fold_ranges(refold_ranges, true, cx);
5962 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5963 s.select(new_selections);
5964 })
5965 });
5966 }
5967
5968 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5969 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5970 let buffer = self.buffer.read(cx).snapshot(cx);
5971
5972 let mut edits = Vec::new();
5973 let mut unfold_ranges = Vec::new();
5974 let mut refold_ranges = Vec::new();
5975
5976 let selections = self.selections.all::<Point>(cx);
5977 let mut selections = selections.iter().peekable();
5978 let mut contiguous_row_selections = Vec::new();
5979 let mut new_selections = Vec::new();
5980
5981 while let Some(selection) = selections.next() {
5982 // Find all the selections that span a contiguous row range
5983 let (start_row, end_row) = consume_contiguous_rows(
5984 &mut contiguous_row_selections,
5985 selection,
5986 &display_map,
5987 &mut selections,
5988 );
5989
5990 // Move the text spanned by the row range to be after the last line of the row range
5991 if end_row.0 <= buffer.max_point().row {
5992 let range_to_move =
5993 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5994 let insertion_point = display_map
5995 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5996 .0;
5997
5998 // Don't move lines across excerpt boundaries
5999 if buffer
6000 .excerpt_boundaries_in_range((
6001 Bound::Excluded(range_to_move.start),
6002 Bound::Included(insertion_point),
6003 ))
6004 .next()
6005 .is_none()
6006 {
6007 let mut text = String::from("\n");
6008 text.extend(buffer.text_for_range(range_to_move.clone()));
6009 text.pop(); // Drop trailing newline
6010 edits.push((
6011 buffer.anchor_after(range_to_move.start)
6012 ..buffer.anchor_before(range_to_move.end),
6013 String::new(),
6014 ));
6015 let insertion_anchor = buffer.anchor_after(insertion_point);
6016 edits.push((insertion_anchor..insertion_anchor, text));
6017
6018 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6019
6020 // Move selections down
6021 new_selections.extend(contiguous_row_selections.drain(..).map(
6022 |mut selection| {
6023 selection.start.row += row_delta;
6024 selection.end.row += row_delta;
6025 selection
6026 },
6027 ));
6028
6029 // Move folds down
6030 unfold_ranges.push(range_to_move.clone());
6031 for fold in display_map.folds_in_range(
6032 buffer.anchor_before(range_to_move.start)
6033 ..buffer.anchor_after(range_to_move.end),
6034 ) {
6035 let mut start = fold.range.start.to_point(&buffer);
6036 let mut end = fold.range.end.to_point(&buffer);
6037 start.row += row_delta;
6038 end.row += row_delta;
6039 refold_ranges.push((start..end, fold.placeholder.clone()));
6040 }
6041 }
6042 }
6043
6044 // If we didn't move line(s), preserve the existing selections
6045 new_selections.append(&mut contiguous_row_selections);
6046 }
6047
6048 self.transact(cx, |this, cx| {
6049 this.unfold_ranges(unfold_ranges, true, true, cx);
6050 this.buffer.update(cx, |buffer, cx| {
6051 for (range, text) in edits {
6052 buffer.edit([(range, text)], None, cx);
6053 }
6054 });
6055 this.fold_ranges(refold_ranges, true, cx);
6056 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6057 });
6058 }
6059
6060 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6061 let text_layout_details = &self.text_layout_details(cx);
6062 self.transact(cx, |this, cx| {
6063 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6064 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6065 let line_mode = s.line_mode;
6066 s.move_with(|display_map, selection| {
6067 if !selection.is_empty() || line_mode {
6068 return;
6069 }
6070
6071 let mut head = selection.head();
6072 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6073 if head.column() == display_map.line_len(head.row()) {
6074 transpose_offset = display_map
6075 .buffer_snapshot
6076 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6077 }
6078
6079 if transpose_offset == 0 {
6080 return;
6081 }
6082
6083 *head.column_mut() += 1;
6084 head = display_map.clip_point(head, Bias::Right);
6085 let goal = SelectionGoal::HorizontalPosition(
6086 display_map
6087 .x_for_display_point(head, &text_layout_details)
6088 .into(),
6089 );
6090 selection.collapse_to(head, goal);
6091
6092 let transpose_start = display_map
6093 .buffer_snapshot
6094 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6095 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6096 let transpose_end = display_map
6097 .buffer_snapshot
6098 .clip_offset(transpose_offset + 1, Bias::Right);
6099 if let Some(ch) =
6100 display_map.buffer_snapshot.chars_at(transpose_start).next()
6101 {
6102 edits.push((transpose_start..transpose_offset, String::new()));
6103 edits.push((transpose_end..transpose_end, ch.to_string()));
6104 }
6105 }
6106 });
6107 edits
6108 });
6109 this.buffer
6110 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6111 let selections = this.selections.all::<usize>(cx);
6112 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6113 s.select(selections);
6114 });
6115 });
6116 }
6117
6118 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6119 let mut text = String::new();
6120 let buffer = self.buffer.read(cx).snapshot(cx);
6121 let mut selections = self.selections.all::<Point>(cx);
6122 let mut clipboard_selections = Vec::with_capacity(selections.len());
6123 {
6124 let max_point = buffer.max_point();
6125 let mut is_first = true;
6126 for selection in &mut selections {
6127 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6128 if is_entire_line {
6129 selection.start = Point::new(selection.start.row, 0);
6130 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6131 selection.goal = SelectionGoal::None;
6132 }
6133 if is_first {
6134 is_first = false;
6135 } else {
6136 text += "\n";
6137 }
6138 let mut len = 0;
6139 for chunk in buffer.text_for_range(selection.start..selection.end) {
6140 text.push_str(chunk);
6141 len += chunk.len();
6142 }
6143 clipboard_selections.push(ClipboardSelection {
6144 len,
6145 is_entire_line,
6146 first_line_indent: buffer
6147 .indent_size_for_line(MultiBufferRow(selection.start.row))
6148 .len,
6149 });
6150 }
6151 }
6152
6153 self.transact(cx, |this, cx| {
6154 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6155 s.select(selections);
6156 });
6157 this.insert("", cx);
6158 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6159 });
6160 }
6161
6162 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6163 let selections = self.selections.all::<Point>(cx);
6164 let buffer = self.buffer.read(cx).read(cx);
6165 let mut text = String::new();
6166
6167 let mut clipboard_selections = Vec::with_capacity(selections.len());
6168 {
6169 let max_point = buffer.max_point();
6170 let mut is_first = true;
6171 for selection in selections.iter() {
6172 let mut start = selection.start;
6173 let mut end = selection.end;
6174 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6175 if is_entire_line {
6176 start = Point::new(start.row, 0);
6177 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6178 }
6179 if is_first {
6180 is_first = false;
6181 } else {
6182 text += "\n";
6183 }
6184 let mut len = 0;
6185 for chunk in buffer.text_for_range(start..end) {
6186 text.push_str(chunk);
6187 len += chunk.len();
6188 }
6189 clipboard_selections.push(ClipboardSelection {
6190 len,
6191 is_entire_line,
6192 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6193 });
6194 }
6195 }
6196
6197 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6198 }
6199
6200 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6201 if self.read_only(cx) {
6202 return;
6203 }
6204
6205 self.transact(cx, |this, cx| {
6206 if let Some(item) = cx.read_from_clipboard() {
6207 let clipboard_text = Cow::Borrowed(item.text());
6208 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6209 let old_selections = this.selections.all::<usize>(cx);
6210 let all_selections_were_entire_line =
6211 clipboard_selections.iter().all(|s| s.is_entire_line);
6212 let first_selection_indent_column =
6213 clipboard_selections.first().map(|s| s.first_line_indent);
6214 if clipboard_selections.len() != old_selections.len() {
6215 clipboard_selections.drain(..);
6216 }
6217
6218 this.buffer.update(cx, |buffer, cx| {
6219 let snapshot = buffer.read(cx);
6220 let mut start_offset = 0;
6221 let mut edits = Vec::new();
6222 let mut original_indent_columns = Vec::new();
6223 let line_mode = this.selections.line_mode;
6224 for (ix, selection) in old_selections.iter().enumerate() {
6225 let to_insert;
6226 let entire_line;
6227 let original_indent_column;
6228 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6229 let end_offset = start_offset + clipboard_selection.len;
6230 to_insert = &clipboard_text[start_offset..end_offset];
6231 entire_line = clipboard_selection.is_entire_line;
6232 start_offset = end_offset + 1;
6233 original_indent_column =
6234 Some(clipboard_selection.first_line_indent);
6235 } else {
6236 to_insert = clipboard_text.as_str();
6237 entire_line = all_selections_were_entire_line;
6238 original_indent_column = first_selection_indent_column
6239 }
6240
6241 // If the corresponding selection was empty when this slice of the
6242 // clipboard text was written, then the entire line containing the
6243 // selection was copied. If this selection is also currently empty,
6244 // then paste the line before the current line of the buffer.
6245 let range = if selection.is_empty() && !line_mode && entire_line {
6246 let column = selection.start.to_point(&snapshot).column as usize;
6247 let line_start = selection.start - column;
6248 line_start..line_start
6249 } else {
6250 selection.range()
6251 };
6252
6253 edits.push((range, to_insert));
6254 original_indent_columns.extend(original_indent_column);
6255 }
6256 drop(snapshot);
6257
6258 buffer.edit(
6259 edits,
6260 Some(AutoindentMode::Block {
6261 original_indent_columns,
6262 }),
6263 cx,
6264 );
6265 });
6266
6267 let selections = this.selections.all::<usize>(cx);
6268 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6269 } else {
6270 this.insert(&clipboard_text, cx);
6271 }
6272 }
6273 });
6274 }
6275
6276 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6277 if self.read_only(cx) {
6278 return;
6279 }
6280
6281 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6282 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
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 cx.emit(EditorEvent::TransactionUndone {
6292 transaction_id: tx_id,
6293 });
6294 }
6295 }
6296
6297 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6298 if self.read_only(cx) {
6299 return;
6300 }
6301
6302 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6303 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6304 {
6305 self.change_selections(None, cx, |s| {
6306 s.select_anchors(selections.to_vec());
6307 });
6308 }
6309 self.request_autoscroll(Autoscroll::fit(), cx);
6310 self.unmark_text(cx);
6311 self.refresh_inline_completion(true, cx);
6312 cx.emit(EditorEvent::Edited);
6313 }
6314 }
6315
6316 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6317 self.buffer
6318 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6319 }
6320
6321 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6322 self.buffer
6323 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6324 }
6325
6326 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6328 let line_mode = s.line_mode;
6329 s.move_with(|map, selection| {
6330 let cursor = if selection.is_empty() && !line_mode {
6331 movement::left(map, selection.start)
6332 } else {
6333 selection.start
6334 };
6335 selection.collapse_to(cursor, SelectionGoal::None);
6336 });
6337 })
6338 }
6339
6340 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6341 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6342 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6343 })
6344 }
6345
6346 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6347 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6348 let line_mode = s.line_mode;
6349 s.move_with(|map, selection| {
6350 let cursor = if selection.is_empty() && !line_mode {
6351 movement::right(map, selection.end)
6352 } else {
6353 selection.end
6354 };
6355 selection.collapse_to(cursor, SelectionGoal::None)
6356 });
6357 })
6358 }
6359
6360 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6361 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6362 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6363 })
6364 }
6365
6366 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6367 if self.take_rename(true, cx).is_some() {
6368 return;
6369 }
6370
6371 if matches!(self.mode, EditorMode::SingleLine) {
6372 cx.propagate();
6373 return;
6374 }
6375
6376 let text_layout_details = &self.text_layout_details(cx);
6377
6378 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6379 let line_mode = s.line_mode;
6380 s.move_with(|map, selection| {
6381 if !selection.is_empty() && !line_mode {
6382 selection.goal = SelectionGoal::None;
6383 }
6384 let (cursor, goal) = movement::up(
6385 map,
6386 selection.start,
6387 selection.goal,
6388 false,
6389 &text_layout_details,
6390 );
6391 selection.collapse_to(cursor, goal);
6392 });
6393 })
6394 }
6395
6396 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6397 if self.take_rename(true, cx).is_some() {
6398 return;
6399 }
6400
6401 if matches!(self.mode, EditorMode::SingleLine) {
6402 cx.propagate();
6403 return;
6404 }
6405
6406 let text_layout_details = &self.text_layout_details(cx);
6407
6408 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6409 let line_mode = s.line_mode;
6410 s.move_with(|map, selection| {
6411 if !selection.is_empty() && !line_mode {
6412 selection.goal = SelectionGoal::None;
6413 }
6414 let (cursor, goal) = movement::up_by_rows(
6415 map,
6416 selection.start,
6417 action.lines,
6418 selection.goal,
6419 false,
6420 &text_layout_details,
6421 );
6422 selection.collapse_to(cursor, goal);
6423 });
6424 })
6425 }
6426
6427 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6428 if self.take_rename(true, cx).is_some() {
6429 return;
6430 }
6431
6432 if matches!(self.mode, EditorMode::SingleLine) {
6433 cx.propagate();
6434 return;
6435 }
6436
6437 let text_layout_details = &self.text_layout_details(cx);
6438
6439 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6440 let line_mode = s.line_mode;
6441 s.move_with(|map, selection| {
6442 if !selection.is_empty() && !line_mode {
6443 selection.goal = SelectionGoal::None;
6444 }
6445 let (cursor, goal) = movement::down_by_rows(
6446 map,
6447 selection.start,
6448 action.lines,
6449 selection.goal,
6450 false,
6451 &text_layout_details,
6452 );
6453 selection.collapse_to(cursor, goal);
6454 });
6455 })
6456 }
6457
6458 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6459 let text_layout_details = &self.text_layout_details(cx);
6460 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6461 s.move_heads_with(|map, head, goal| {
6462 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6463 })
6464 })
6465 }
6466
6467 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6468 let text_layout_details = &self.text_layout_details(cx);
6469 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6470 s.move_heads_with(|map, head, goal| {
6471 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6472 })
6473 })
6474 }
6475
6476 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6477 if self.take_rename(true, cx).is_some() {
6478 return;
6479 }
6480
6481 if matches!(self.mode, EditorMode::SingleLine) {
6482 cx.propagate();
6483 return;
6484 }
6485
6486 let row_count = if let Some(row_count) = self.visible_line_count() {
6487 row_count as u32 - 1
6488 } else {
6489 return;
6490 };
6491
6492 let autoscroll = if action.center_cursor {
6493 Autoscroll::center()
6494 } else {
6495 Autoscroll::fit()
6496 };
6497
6498 let text_layout_details = &self.text_layout_details(cx);
6499
6500 self.change_selections(Some(autoscroll), cx, |s| {
6501 let line_mode = s.line_mode;
6502 s.move_with(|map, selection| {
6503 if !selection.is_empty() && !line_mode {
6504 selection.goal = SelectionGoal::None;
6505 }
6506 let (cursor, goal) = movement::up_by_rows(
6507 map,
6508 selection.end,
6509 row_count,
6510 selection.goal,
6511 false,
6512 &text_layout_details,
6513 );
6514 selection.collapse_to(cursor, goal);
6515 });
6516 });
6517 }
6518
6519 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6520 let text_layout_details = &self.text_layout_details(cx);
6521 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6522 s.move_heads_with(|map, head, goal| {
6523 movement::up(map, head, goal, false, &text_layout_details)
6524 })
6525 })
6526 }
6527
6528 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6529 self.take_rename(true, cx);
6530
6531 if self.mode == EditorMode::SingleLine {
6532 cx.propagate();
6533 return;
6534 }
6535
6536 let text_layout_details = &self.text_layout_details(cx);
6537 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6538 let line_mode = s.line_mode;
6539 s.move_with(|map, selection| {
6540 if !selection.is_empty() && !line_mode {
6541 selection.goal = SelectionGoal::None;
6542 }
6543 let (cursor, goal) = movement::down(
6544 map,
6545 selection.end,
6546 selection.goal,
6547 false,
6548 &text_layout_details,
6549 );
6550 selection.collapse_to(cursor, goal);
6551 });
6552 });
6553 }
6554
6555 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6556 if self.take_rename(true, cx).is_some() {
6557 return;
6558 }
6559
6560 if self
6561 .context_menu
6562 .write()
6563 .as_mut()
6564 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6565 .unwrap_or(false)
6566 {
6567 return;
6568 }
6569
6570 if matches!(self.mode, EditorMode::SingleLine) {
6571 cx.propagate();
6572 return;
6573 }
6574
6575 let row_count = if let Some(row_count) = self.visible_line_count() {
6576 row_count as u32 - 1
6577 } else {
6578 return;
6579 };
6580
6581 let autoscroll = if action.center_cursor {
6582 Autoscroll::center()
6583 } else {
6584 Autoscroll::fit()
6585 };
6586
6587 let text_layout_details = &self.text_layout_details(cx);
6588 self.change_selections(Some(autoscroll), cx, |s| {
6589 let line_mode = s.line_mode;
6590 s.move_with(|map, selection| {
6591 if !selection.is_empty() && !line_mode {
6592 selection.goal = SelectionGoal::None;
6593 }
6594 let (cursor, goal) = movement::down_by_rows(
6595 map,
6596 selection.end,
6597 row_count,
6598 selection.goal,
6599 false,
6600 &text_layout_details,
6601 );
6602 selection.collapse_to(cursor, goal);
6603 });
6604 });
6605 }
6606
6607 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6608 let text_layout_details = &self.text_layout_details(cx);
6609 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6610 s.move_heads_with(|map, head, goal| {
6611 movement::down(map, head, goal, false, &text_layout_details)
6612 })
6613 });
6614 }
6615
6616 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6617 if let Some(context_menu) = self.context_menu.write().as_mut() {
6618 context_menu.select_first(self.project.as_ref(), cx);
6619 }
6620 }
6621
6622 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6623 if let Some(context_menu) = self.context_menu.write().as_mut() {
6624 context_menu.select_prev(self.project.as_ref(), cx);
6625 }
6626 }
6627
6628 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6629 if let Some(context_menu) = self.context_menu.write().as_mut() {
6630 context_menu.select_next(self.project.as_ref(), cx);
6631 }
6632 }
6633
6634 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6635 if let Some(context_menu) = self.context_menu.write().as_mut() {
6636 context_menu.select_last(self.project.as_ref(), cx);
6637 }
6638 }
6639
6640 pub fn move_to_previous_word_start(
6641 &mut self,
6642 _: &MoveToPreviousWordStart,
6643 cx: &mut ViewContext<Self>,
6644 ) {
6645 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6646 s.move_cursors_with(|map, head, _| {
6647 (
6648 movement::previous_word_start(map, head),
6649 SelectionGoal::None,
6650 )
6651 });
6652 })
6653 }
6654
6655 pub fn move_to_previous_subword_start(
6656 &mut self,
6657 _: &MoveToPreviousSubwordStart,
6658 cx: &mut ViewContext<Self>,
6659 ) {
6660 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6661 s.move_cursors_with(|map, head, _| {
6662 (
6663 movement::previous_subword_start(map, head),
6664 SelectionGoal::None,
6665 )
6666 });
6667 })
6668 }
6669
6670 pub fn select_to_previous_word_start(
6671 &mut self,
6672 _: &SelectToPreviousWordStart,
6673 cx: &mut ViewContext<Self>,
6674 ) {
6675 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6676 s.move_heads_with(|map, head, _| {
6677 (
6678 movement::previous_word_start(map, head),
6679 SelectionGoal::None,
6680 )
6681 });
6682 })
6683 }
6684
6685 pub fn select_to_previous_subword_start(
6686 &mut self,
6687 _: &SelectToPreviousSubwordStart,
6688 cx: &mut ViewContext<Self>,
6689 ) {
6690 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6691 s.move_heads_with(|map, head, _| {
6692 (
6693 movement::previous_subword_start(map, head),
6694 SelectionGoal::None,
6695 )
6696 });
6697 })
6698 }
6699
6700 pub fn delete_to_previous_word_start(
6701 &mut self,
6702 _: &DeleteToPreviousWordStart,
6703 cx: &mut ViewContext<Self>,
6704 ) {
6705 self.transact(cx, |this, cx| {
6706 this.select_autoclose_pair(cx);
6707 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6708 let line_mode = s.line_mode;
6709 s.move_with(|map, selection| {
6710 if selection.is_empty() && !line_mode {
6711 let cursor = movement::previous_word_start(map, selection.head());
6712 selection.set_head(cursor, SelectionGoal::None);
6713 }
6714 });
6715 });
6716 this.insert("", cx);
6717 });
6718 }
6719
6720 pub fn delete_to_previous_subword_start(
6721 &mut self,
6722 _: &DeleteToPreviousSubwordStart,
6723 cx: &mut ViewContext<Self>,
6724 ) {
6725 self.transact(cx, |this, cx| {
6726 this.select_autoclose_pair(cx);
6727 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6728 let line_mode = s.line_mode;
6729 s.move_with(|map, selection| {
6730 if selection.is_empty() && !line_mode {
6731 let cursor = movement::previous_subword_start(map, selection.head());
6732 selection.set_head(cursor, SelectionGoal::None);
6733 }
6734 });
6735 });
6736 this.insert("", cx);
6737 });
6738 }
6739
6740 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6741 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6742 s.move_cursors_with(|map, head, _| {
6743 (movement::next_word_end(map, head), SelectionGoal::None)
6744 });
6745 })
6746 }
6747
6748 pub fn move_to_next_subword_end(
6749 &mut self,
6750 _: &MoveToNextSubwordEnd,
6751 cx: &mut ViewContext<Self>,
6752 ) {
6753 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6754 s.move_cursors_with(|map, head, _| {
6755 (movement::next_subword_end(map, head), SelectionGoal::None)
6756 });
6757 })
6758 }
6759
6760 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6761 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6762 s.move_heads_with(|map, head, _| {
6763 (movement::next_word_end(map, head), SelectionGoal::None)
6764 });
6765 })
6766 }
6767
6768 pub fn select_to_next_subword_end(
6769 &mut self,
6770 _: &SelectToNextSubwordEnd,
6771 cx: &mut ViewContext<Self>,
6772 ) {
6773 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6774 s.move_heads_with(|map, head, _| {
6775 (movement::next_subword_end(map, head), SelectionGoal::None)
6776 });
6777 })
6778 }
6779
6780 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6781 self.transact(cx, |this, cx| {
6782 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6783 let line_mode = s.line_mode;
6784 s.move_with(|map, selection| {
6785 if selection.is_empty() && !line_mode {
6786 let cursor = movement::next_word_end(map, selection.head());
6787 selection.set_head(cursor, SelectionGoal::None);
6788 }
6789 });
6790 });
6791 this.insert("", cx);
6792 });
6793 }
6794
6795 pub fn delete_to_next_subword_end(
6796 &mut self,
6797 _: &DeleteToNextSubwordEnd,
6798 cx: &mut ViewContext<Self>,
6799 ) {
6800 self.transact(cx, |this, cx| {
6801 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6802 s.move_with(|map, selection| {
6803 if selection.is_empty() {
6804 let cursor = movement::next_subword_end(map, selection.head());
6805 selection.set_head(cursor, SelectionGoal::None);
6806 }
6807 });
6808 });
6809 this.insert("", cx);
6810 });
6811 }
6812
6813 pub fn move_to_beginning_of_line(
6814 &mut self,
6815 action: &MoveToBeginningOfLine,
6816 cx: &mut ViewContext<Self>,
6817 ) {
6818 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6819 s.move_cursors_with(|map, head, _| {
6820 (
6821 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6822 SelectionGoal::None,
6823 )
6824 });
6825 })
6826 }
6827
6828 pub fn select_to_beginning_of_line(
6829 &mut self,
6830 action: &SelectToBeginningOfLine,
6831 cx: &mut ViewContext<Self>,
6832 ) {
6833 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6834 s.move_heads_with(|map, head, _| {
6835 (
6836 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6837 SelectionGoal::None,
6838 )
6839 });
6840 });
6841 }
6842
6843 pub fn delete_to_beginning_of_line(
6844 &mut self,
6845 _: &DeleteToBeginningOfLine,
6846 cx: &mut ViewContext<Self>,
6847 ) {
6848 self.transact(cx, |this, cx| {
6849 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6850 s.move_with(|_, selection| {
6851 selection.reversed = true;
6852 });
6853 });
6854
6855 this.select_to_beginning_of_line(
6856 &SelectToBeginningOfLine {
6857 stop_at_soft_wraps: false,
6858 },
6859 cx,
6860 );
6861 this.backspace(&Backspace, cx);
6862 });
6863 }
6864
6865 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6866 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6867 s.move_cursors_with(|map, head, _| {
6868 (
6869 movement::line_end(map, head, action.stop_at_soft_wraps),
6870 SelectionGoal::None,
6871 )
6872 });
6873 })
6874 }
6875
6876 pub fn select_to_end_of_line(
6877 &mut self,
6878 action: &SelectToEndOfLine,
6879 cx: &mut ViewContext<Self>,
6880 ) {
6881 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6882 s.move_heads_with(|map, head, _| {
6883 (
6884 movement::line_end(map, head, action.stop_at_soft_wraps),
6885 SelectionGoal::None,
6886 )
6887 });
6888 })
6889 }
6890
6891 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6892 self.transact(cx, |this, cx| {
6893 this.select_to_end_of_line(
6894 &SelectToEndOfLine {
6895 stop_at_soft_wraps: false,
6896 },
6897 cx,
6898 );
6899 this.delete(&Delete, cx);
6900 });
6901 }
6902
6903 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6904 self.transact(cx, |this, cx| {
6905 this.select_to_end_of_line(
6906 &SelectToEndOfLine {
6907 stop_at_soft_wraps: false,
6908 },
6909 cx,
6910 );
6911 this.cut(&Cut, cx);
6912 });
6913 }
6914
6915 pub fn move_to_start_of_paragraph(
6916 &mut self,
6917 _: &MoveToStartOfParagraph,
6918 cx: &mut ViewContext<Self>,
6919 ) {
6920 if matches!(self.mode, EditorMode::SingleLine) {
6921 cx.propagate();
6922 return;
6923 }
6924
6925 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6926 s.move_with(|map, selection| {
6927 selection.collapse_to(
6928 movement::start_of_paragraph(map, selection.head(), 1),
6929 SelectionGoal::None,
6930 )
6931 });
6932 })
6933 }
6934
6935 pub fn move_to_end_of_paragraph(
6936 &mut self,
6937 _: &MoveToEndOfParagraph,
6938 cx: &mut ViewContext<Self>,
6939 ) {
6940 if matches!(self.mode, EditorMode::SingleLine) {
6941 cx.propagate();
6942 return;
6943 }
6944
6945 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6946 s.move_with(|map, selection| {
6947 selection.collapse_to(
6948 movement::end_of_paragraph(map, selection.head(), 1),
6949 SelectionGoal::None,
6950 )
6951 });
6952 })
6953 }
6954
6955 pub fn select_to_start_of_paragraph(
6956 &mut self,
6957 _: &SelectToStartOfParagraph,
6958 cx: &mut ViewContext<Self>,
6959 ) {
6960 if matches!(self.mode, EditorMode::SingleLine) {
6961 cx.propagate();
6962 return;
6963 }
6964
6965 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6966 s.move_heads_with(|map, head, _| {
6967 (
6968 movement::start_of_paragraph(map, head, 1),
6969 SelectionGoal::None,
6970 )
6971 });
6972 })
6973 }
6974
6975 pub fn select_to_end_of_paragraph(
6976 &mut self,
6977 _: &SelectToEndOfParagraph,
6978 cx: &mut ViewContext<Self>,
6979 ) {
6980 if matches!(self.mode, EditorMode::SingleLine) {
6981 cx.propagate();
6982 return;
6983 }
6984
6985 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6986 s.move_heads_with(|map, head, _| {
6987 (
6988 movement::end_of_paragraph(map, head, 1),
6989 SelectionGoal::None,
6990 )
6991 });
6992 })
6993 }
6994
6995 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6996 if matches!(self.mode, EditorMode::SingleLine) {
6997 cx.propagate();
6998 return;
6999 }
7000
7001 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7002 s.select_ranges(vec![0..0]);
7003 });
7004 }
7005
7006 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7007 let mut selection = self.selections.last::<Point>(cx);
7008 selection.set_head(Point::zero(), SelectionGoal::None);
7009
7010 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7011 s.select(vec![selection]);
7012 });
7013 }
7014
7015 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7016 if matches!(self.mode, EditorMode::SingleLine) {
7017 cx.propagate();
7018 return;
7019 }
7020
7021 let cursor = self.buffer.read(cx).read(cx).len();
7022 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7023 s.select_ranges(vec![cursor..cursor])
7024 });
7025 }
7026
7027 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7028 self.nav_history = nav_history;
7029 }
7030
7031 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7032 self.nav_history.as_ref()
7033 }
7034
7035 fn push_to_nav_history(
7036 &mut self,
7037 cursor_anchor: Anchor,
7038 new_position: Option<Point>,
7039 cx: &mut ViewContext<Self>,
7040 ) {
7041 if let Some(nav_history) = self.nav_history.as_mut() {
7042 let buffer = self.buffer.read(cx).read(cx);
7043 let cursor_position = cursor_anchor.to_point(&buffer);
7044 let scroll_state = self.scroll_manager.anchor();
7045 let scroll_top_row = scroll_state.top_row(&buffer);
7046 drop(buffer);
7047
7048 if let Some(new_position) = new_position {
7049 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7050 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7051 return;
7052 }
7053 }
7054
7055 nav_history.push(
7056 Some(NavigationData {
7057 cursor_anchor,
7058 cursor_position,
7059 scroll_anchor: scroll_state,
7060 scroll_top_row,
7061 }),
7062 cx,
7063 );
7064 }
7065 }
7066
7067 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7068 let buffer = self.buffer.read(cx).snapshot(cx);
7069 let mut selection = self.selections.first::<usize>(cx);
7070 selection.set_head(buffer.len(), SelectionGoal::None);
7071 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7072 s.select(vec![selection]);
7073 });
7074 }
7075
7076 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7077 let end = self.buffer.read(cx).read(cx).len();
7078 self.change_selections(None, cx, |s| {
7079 s.select_ranges(vec![0..end]);
7080 });
7081 }
7082
7083 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7084 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7085 let mut selections = self.selections.all::<Point>(cx);
7086 let max_point = display_map.buffer_snapshot.max_point();
7087 for selection in &mut selections {
7088 let rows = selection.spanned_rows(true, &display_map);
7089 selection.start = Point::new(rows.start.0, 0);
7090 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7091 selection.reversed = false;
7092 }
7093 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7094 s.select(selections);
7095 });
7096 }
7097
7098 pub fn split_selection_into_lines(
7099 &mut self,
7100 _: &SplitSelectionIntoLines,
7101 cx: &mut ViewContext<Self>,
7102 ) {
7103 let mut to_unfold = Vec::new();
7104 let mut new_selection_ranges = Vec::new();
7105 {
7106 let selections = self.selections.all::<Point>(cx);
7107 let buffer = self.buffer.read(cx).read(cx);
7108 for selection in selections {
7109 for row in selection.start.row..selection.end.row {
7110 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7111 new_selection_ranges.push(cursor..cursor);
7112 }
7113 new_selection_ranges.push(selection.end..selection.end);
7114 to_unfold.push(selection.start..selection.end);
7115 }
7116 }
7117 self.unfold_ranges(to_unfold, true, true, cx);
7118 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7119 s.select_ranges(new_selection_ranges);
7120 });
7121 }
7122
7123 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7124 self.add_selection(true, cx);
7125 }
7126
7127 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7128 self.add_selection(false, cx);
7129 }
7130
7131 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7132 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7133 let mut selections = self.selections.all::<Point>(cx);
7134 let text_layout_details = self.text_layout_details(cx);
7135 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7136 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7137 let range = oldest_selection.display_range(&display_map).sorted();
7138
7139 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7140 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7141 let positions = start_x.min(end_x)..start_x.max(end_x);
7142
7143 selections.clear();
7144 let mut stack = Vec::new();
7145 for row in range.start.row().0..=range.end.row().0 {
7146 if let Some(selection) = self.selections.build_columnar_selection(
7147 &display_map,
7148 DisplayRow(row),
7149 &positions,
7150 oldest_selection.reversed,
7151 &text_layout_details,
7152 ) {
7153 stack.push(selection.id);
7154 selections.push(selection);
7155 }
7156 }
7157
7158 if above {
7159 stack.reverse();
7160 }
7161
7162 AddSelectionsState { above, stack }
7163 });
7164
7165 let last_added_selection = *state.stack.last().unwrap();
7166 let mut new_selections = Vec::new();
7167 if above == state.above {
7168 let end_row = if above {
7169 DisplayRow(0)
7170 } else {
7171 display_map.max_point().row()
7172 };
7173
7174 'outer: for selection in selections {
7175 if selection.id == last_added_selection {
7176 let range = selection.display_range(&display_map).sorted();
7177 debug_assert_eq!(range.start.row(), range.end.row());
7178 let mut row = range.start.row();
7179 let positions =
7180 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7181 px(start)..px(end)
7182 } else {
7183 let start_x =
7184 display_map.x_for_display_point(range.start, &text_layout_details);
7185 let end_x =
7186 display_map.x_for_display_point(range.end, &text_layout_details);
7187 start_x.min(end_x)..start_x.max(end_x)
7188 };
7189
7190 while row != end_row {
7191 if above {
7192 row.0 -= 1;
7193 } else {
7194 row.0 += 1;
7195 }
7196
7197 if let Some(new_selection) = self.selections.build_columnar_selection(
7198 &display_map,
7199 row,
7200 &positions,
7201 selection.reversed,
7202 &text_layout_details,
7203 ) {
7204 state.stack.push(new_selection.id);
7205 if above {
7206 new_selections.push(new_selection);
7207 new_selections.push(selection);
7208 } else {
7209 new_selections.push(selection);
7210 new_selections.push(new_selection);
7211 }
7212
7213 continue 'outer;
7214 }
7215 }
7216 }
7217
7218 new_selections.push(selection);
7219 }
7220 } else {
7221 new_selections = selections;
7222 new_selections.retain(|s| s.id != last_added_selection);
7223 state.stack.pop();
7224 }
7225
7226 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7227 s.select(new_selections);
7228 });
7229 if state.stack.len() > 1 {
7230 self.add_selections_state = Some(state);
7231 }
7232 }
7233
7234 pub fn select_next_match_internal(
7235 &mut self,
7236 display_map: &DisplaySnapshot,
7237 replace_newest: bool,
7238 autoscroll: Option<Autoscroll>,
7239 cx: &mut ViewContext<Self>,
7240 ) -> Result<()> {
7241 fn select_next_match_ranges(
7242 this: &mut Editor,
7243 range: Range<usize>,
7244 replace_newest: bool,
7245 auto_scroll: Option<Autoscroll>,
7246 cx: &mut ViewContext<Editor>,
7247 ) {
7248 this.unfold_ranges([range.clone()], false, true, cx);
7249 this.change_selections(auto_scroll, cx, |s| {
7250 if replace_newest {
7251 s.delete(s.newest_anchor().id);
7252 }
7253 s.insert_range(range.clone());
7254 });
7255 }
7256
7257 let buffer = &display_map.buffer_snapshot;
7258 let mut selections = self.selections.all::<usize>(cx);
7259 if let Some(mut select_next_state) = self.select_next_state.take() {
7260 let query = &select_next_state.query;
7261 if !select_next_state.done {
7262 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7263 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7264 let mut next_selected_range = None;
7265
7266 let bytes_after_last_selection =
7267 buffer.bytes_in_range(last_selection.end..buffer.len());
7268 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7269 let query_matches = query
7270 .stream_find_iter(bytes_after_last_selection)
7271 .map(|result| (last_selection.end, result))
7272 .chain(
7273 query
7274 .stream_find_iter(bytes_before_first_selection)
7275 .map(|result| (0, result)),
7276 );
7277
7278 for (start_offset, query_match) in query_matches {
7279 let query_match = query_match.unwrap(); // can only fail due to I/O
7280 let offset_range =
7281 start_offset + query_match.start()..start_offset + query_match.end();
7282 let display_range = offset_range.start.to_display_point(&display_map)
7283 ..offset_range.end.to_display_point(&display_map);
7284
7285 if !select_next_state.wordwise
7286 || (!movement::is_inside_word(&display_map, display_range.start)
7287 && !movement::is_inside_word(&display_map, display_range.end))
7288 {
7289 // TODO: This is n^2, because we might check all the selections
7290 if !selections
7291 .iter()
7292 .any(|selection| selection.range().overlaps(&offset_range))
7293 {
7294 next_selected_range = Some(offset_range);
7295 break;
7296 }
7297 }
7298 }
7299
7300 if let Some(next_selected_range) = next_selected_range {
7301 select_next_match_ranges(
7302 self,
7303 next_selected_range,
7304 replace_newest,
7305 autoscroll,
7306 cx,
7307 );
7308 } else {
7309 select_next_state.done = true;
7310 }
7311 }
7312
7313 self.select_next_state = Some(select_next_state);
7314 } else {
7315 let mut only_carets = true;
7316 let mut same_text_selected = true;
7317 let mut selected_text = None;
7318
7319 let mut selections_iter = selections.iter().peekable();
7320 while let Some(selection) = selections_iter.next() {
7321 if selection.start != selection.end {
7322 only_carets = false;
7323 }
7324
7325 if same_text_selected {
7326 if selected_text.is_none() {
7327 selected_text =
7328 Some(buffer.text_for_range(selection.range()).collect::<String>());
7329 }
7330
7331 if let Some(next_selection) = selections_iter.peek() {
7332 if next_selection.range().len() == selection.range().len() {
7333 let next_selected_text = buffer
7334 .text_for_range(next_selection.range())
7335 .collect::<String>();
7336 if Some(next_selected_text) != selected_text {
7337 same_text_selected = false;
7338 selected_text = None;
7339 }
7340 } else {
7341 same_text_selected = false;
7342 selected_text = None;
7343 }
7344 }
7345 }
7346 }
7347
7348 if only_carets {
7349 for selection in &mut selections {
7350 let word_range = movement::surrounding_word(
7351 &display_map,
7352 selection.start.to_display_point(&display_map),
7353 );
7354 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7355 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7356 selection.goal = SelectionGoal::None;
7357 selection.reversed = false;
7358 select_next_match_ranges(
7359 self,
7360 selection.start..selection.end,
7361 replace_newest,
7362 autoscroll,
7363 cx,
7364 );
7365 }
7366
7367 if selections.len() == 1 {
7368 let selection = selections
7369 .last()
7370 .expect("ensured that there's only one selection");
7371 let query = buffer
7372 .text_for_range(selection.start..selection.end)
7373 .collect::<String>();
7374 let is_empty = query.is_empty();
7375 let select_state = SelectNextState {
7376 query: AhoCorasick::new(&[query])?,
7377 wordwise: true,
7378 done: is_empty,
7379 };
7380 self.select_next_state = Some(select_state);
7381 } else {
7382 self.select_next_state = None;
7383 }
7384 } else if let Some(selected_text) = selected_text {
7385 self.select_next_state = Some(SelectNextState {
7386 query: AhoCorasick::new(&[selected_text])?,
7387 wordwise: false,
7388 done: false,
7389 });
7390 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7391 }
7392 }
7393 Ok(())
7394 }
7395
7396 pub fn select_all_matches(
7397 &mut self,
7398 _action: &SelectAllMatches,
7399 cx: &mut ViewContext<Self>,
7400 ) -> Result<()> {
7401 self.push_to_selection_history();
7402 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7403
7404 self.select_next_match_internal(&display_map, false, None, cx)?;
7405 let Some(select_next_state) = self.select_next_state.as_mut() else {
7406 return Ok(());
7407 };
7408 if select_next_state.done {
7409 return Ok(());
7410 }
7411
7412 let mut new_selections = self.selections.all::<usize>(cx);
7413
7414 let buffer = &display_map.buffer_snapshot;
7415 let query_matches = select_next_state
7416 .query
7417 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7418
7419 for query_match in query_matches {
7420 let query_match = query_match.unwrap(); // can only fail due to I/O
7421 let offset_range = query_match.start()..query_match.end();
7422 let display_range = offset_range.start.to_display_point(&display_map)
7423 ..offset_range.end.to_display_point(&display_map);
7424
7425 if !select_next_state.wordwise
7426 || (!movement::is_inside_word(&display_map, display_range.start)
7427 && !movement::is_inside_word(&display_map, display_range.end))
7428 {
7429 self.selections.change_with(cx, |selections| {
7430 new_selections.push(Selection {
7431 id: selections.new_selection_id(),
7432 start: offset_range.start,
7433 end: offset_range.end,
7434 reversed: false,
7435 goal: SelectionGoal::None,
7436 });
7437 });
7438 }
7439 }
7440
7441 new_selections.sort_by_key(|selection| selection.start);
7442 let mut ix = 0;
7443 while ix + 1 < new_selections.len() {
7444 let current_selection = &new_selections[ix];
7445 let next_selection = &new_selections[ix + 1];
7446 if current_selection.range().overlaps(&next_selection.range()) {
7447 if current_selection.id < next_selection.id {
7448 new_selections.remove(ix + 1);
7449 } else {
7450 new_selections.remove(ix);
7451 }
7452 } else {
7453 ix += 1;
7454 }
7455 }
7456
7457 select_next_state.done = true;
7458 self.unfold_ranges(
7459 new_selections.iter().map(|selection| selection.range()),
7460 false,
7461 false,
7462 cx,
7463 );
7464 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7465 selections.select(new_selections)
7466 });
7467
7468 Ok(())
7469 }
7470
7471 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7472 self.push_to_selection_history();
7473 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7474 self.select_next_match_internal(
7475 &display_map,
7476 action.replace_newest,
7477 Some(Autoscroll::newest()),
7478 cx,
7479 )?;
7480 Ok(())
7481 }
7482
7483 pub fn select_previous(
7484 &mut self,
7485 action: &SelectPrevious,
7486 cx: &mut ViewContext<Self>,
7487 ) -> Result<()> {
7488 self.push_to_selection_history();
7489 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7490 let buffer = &display_map.buffer_snapshot;
7491 let mut selections = self.selections.all::<usize>(cx);
7492 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7493 let query = &select_prev_state.query;
7494 if !select_prev_state.done {
7495 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7496 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7497 let mut next_selected_range = None;
7498 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7499 let bytes_before_last_selection =
7500 buffer.reversed_bytes_in_range(0..last_selection.start);
7501 let bytes_after_first_selection =
7502 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7503 let query_matches = query
7504 .stream_find_iter(bytes_before_last_selection)
7505 .map(|result| (last_selection.start, result))
7506 .chain(
7507 query
7508 .stream_find_iter(bytes_after_first_selection)
7509 .map(|result| (buffer.len(), result)),
7510 );
7511 for (end_offset, query_match) in query_matches {
7512 let query_match = query_match.unwrap(); // can only fail due to I/O
7513 let offset_range =
7514 end_offset - query_match.end()..end_offset - query_match.start();
7515 let display_range = offset_range.start.to_display_point(&display_map)
7516 ..offset_range.end.to_display_point(&display_map);
7517
7518 if !select_prev_state.wordwise
7519 || (!movement::is_inside_word(&display_map, display_range.start)
7520 && !movement::is_inside_word(&display_map, display_range.end))
7521 {
7522 next_selected_range = Some(offset_range);
7523 break;
7524 }
7525 }
7526
7527 if let Some(next_selected_range) = next_selected_range {
7528 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7529 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7530 if action.replace_newest {
7531 s.delete(s.newest_anchor().id);
7532 }
7533 s.insert_range(next_selected_range);
7534 });
7535 } else {
7536 select_prev_state.done = true;
7537 }
7538 }
7539
7540 self.select_prev_state = Some(select_prev_state);
7541 } else {
7542 let mut only_carets = true;
7543 let mut same_text_selected = true;
7544 let mut selected_text = None;
7545
7546 let mut selections_iter = selections.iter().peekable();
7547 while let Some(selection) = selections_iter.next() {
7548 if selection.start != selection.end {
7549 only_carets = false;
7550 }
7551
7552 if same_text_selected {
7553 if selected_text.is_none() {
7554 selected_text =
7555 Some(buffer.text_for_range(selection.range()).collect::<String>());
7556 }
7557
7558 if let Some(next_selection) = selections_iter.peek() {
7559 if next_selection.range().len() == selection.range().len() {
7560 let next_selected_text = buffer
7561 .text_for_range(next_selection.range())
7562 .collect::<String>();
7563 if Some(next_selected_text) != selected_text {
7564 same_text_selected = false;
7565 selected_text = None;
7566 }
7567 } else {
7568 same_text_selected = false;
7569 selected_text = None;
7570 }
7571 }
7572 }
7573 }
7574
7575 if only_carets {
7576 for selection in &mut selections {
7577 let word_range = movement::surrounding_word(
7578 &display_map,
7579 selection.start.to_display_point(&display_map),
7580 );
7581 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7582 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7583 selection.goal = SelectionGoal::None;
7584 selection.reversed = false;
7585 }
7586 if selections.len() == 1 {
7587 let selection = selections
7588 .last()
7589 .expect("ensured that there's only one selection");
7590 let query = buffer
7591 .text_for_range(selection.start..selection.end)
7592 .collect::<String>();
7593 let is_empty = query.is_empty();
7594 let select_state = SelectNextState {
7595 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7596 wordwise: true,
7597 done: is_empty,
7598 };
7599 self.select_prev_state = Some(select_state);
7600 } else {
7601 self.select_prev_state = None;
7602 }
7603
7604 self.unfold_ranges(
7605 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7606 false,
7607 true,
7608 cx,
7609 );
7610 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7611 s.select(selections);
7612 });
7613 } else if let Some(selected_text) = selected_text {
7614 self.select_prev_state = Some(SelectNextState {
7615 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7616 wordwise: false,
7617 done: false,
7618 });
7619 self.select_previous(action, cx)?;
7620 }
7621 }
7622 Ok(())
7623 }
7624
7625 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7626 let text_layout_details = &self.text_layout_details(cx);
7627 self.transact(cx, |this, cx| {
7628 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7629 let mut edits = Vec::new();
7630 let mut selection_edit_ranges = Vec::new();
7631 let mut last_toggled_row = None;
7632 let snapshot = this.buffer.read(cx).read(cx);
7633 let empty_str: Arc<str> = "".into();
7634 let mut suffixes_inserted = Vec::new();
7635
7636 fn comment_prefix_range(
7637 snapshot: &MultiBufferSnapshot,
7638 row: MultiBufferRow,
7639 comment_prefix: &str,
7640 comment_prefix_whitespace: &str,
7641 ) -> Range<Point> {
7642 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7643
7644 let mut line_bytes = snapshot
7645 .bytes_in_range(start..snapshot.max_point())
7646 .flatten()
7647 .copied();
7648
7649 // If this line currently begins with the line comment prefix, then record
7650 // the range containing the prefix.
7651 if line_bytes
7652 .by_ref()
7653 .take(comment_prefix.len())
7654 .eq(comment_prefix.bytes())
7655 {
7656 // Include any whitespace that matches the comment prefix.
7657 let matching_whitespace_len = line_bytes
7658 .zip(comment_prefix_whitespace.bytes())
7659 .take_while(|(a, b)| a == b)
7660 .count() as u32;
7661 let end = Point::new(
7662 start.row,
7663 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7664 );
7665 start..end
7666 } else {
7667 start..start
7668 }
7669 }
7670
7671 fn comment_suffix_range(
7672 snapshot: &MultiBufferSnapshot,
7673 row: MultiBufferRow,
7674 comment_suffix: &str,
7675 comment_suffix_has_leading_space: bool,
7676 ) -> Range<Point> {
7677 let end = Point::new(row.0, snapshot.line_len(row));
7678 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7679
7680 let mut line_end_bytes = snapshot
7681 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7682 .flatten()
7683 .copied();
7684
7685 let leading_space_len = if suffix_start_column > 0
7686 && line_end_bytes.next() == Some(b' ')
7687 && comment_suffix_has_leading_space
7688 {
7689 1
7690 } else {
7691 0
7692 };
7693
7694 // If this line currently begins with the line comment prefix, then record
7695 // the range containing the prefix.
7696 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7697 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7698 start..end
7699 } else {
7700 end..end
7701 }
7702 }
7703
7704 // TODO: Handle selections that cross excerpts
7705 for selection in &mut selections {
7706 let start_column = snapshot
7707 .indent_size_for_line(MultiBufferRow(selection.start.row))
7708 .len;
7709 let language = if let Some(language) =
7710 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7711 {
7712 language
7713 } else {
7714 continue;
7715 };
7716
7717 selection_edit_ranges.clear();
7718
7719 // If multiple selections contain a given row, avoid processing that
7720 // row more than once.
7721 let mut start_row = MultiBufferRow(selection.start.row);
7722 if last_toggled_row == Some(start_row) {
7723 start_row = start_row.next_row();
7724 }
7725 let end_row =
7726 if selection.end.row > selection.start.row && selection.end.column == 0 {
7727 MultiBufferRow(selection.end.row - 1)
7728 } else {
7729 MultiBufferRow(selection.end.row)
7730 };
7731 last_toggled_row = Some(end_row);
7732
7733 if start_row > end_row {
7734 continue;
7735 }
7736
7737 // If the language has line comments, toggle those.
7738 let full_comment_prefixes = language.line_comment_prefixes();
7739 if !full_comment_prefixes.is_empty() {
7740 let first_prefix = full_comment_prefixes
7741 .first()
7742 .expect("prefixes is non-empty");
7743 let prefix_trimmed_lengths = full_comment_prefixes
7744 .iter()
7745 .map(|p| p.trim_end_matches(' ').len())
7746 .collect::<SmallVec<[usize; 4]>>();
7747
7748 let mut all_selection_lines_are_comments = true;
7749
7750 for row in start_row.0..=end_row.0 {
7751 let row = MultiBufferRow(row);
7752 if start_row < end_row && snapshot.is_line_blank(row) {
7753 continue;
7754 }
7755
7756 let prefix_range = full_comment_prefixes
7757 .iter()
7758 .zip(prefix_trimmed_lengths.iter().copied())
7759 .map(|(prefix, trimmed_prefix_len)| {
7760 comment_prefix_range(
7761 snapshot.deref(),
7762 row,
7763 &prefix[..trimmed_prefix_len],
7764 &prefix[trimmed_prefix_len..],
7765 )
7766 })
7767 .max_by_key(|range| range.end.column - range.start.column)
7768 .expect("prefixes is non-empty");
7769
7770 if prefix_range.is_empty() {
7771 all_selection_lines_are_comments = false;
7772 }
7773
7774 selection_edit_ranges.push(prefix_range);
7775 }
7776
7777 if all_selection_lines_are_comments {
7778 edits.extend(
7779 selection_edit_ranges
7780 .iter()
7781 .cloned()
7782 .map(|range| (range, empty_str.clone())),
7783 );
7784 } else {
7785 let min_column = selection_edit_ranges
7786 .iter()
7787 .map(|range| range.start.column)
7788 .min()
7789 .unwrap_or(0);
7790 edits.extend(selection_edit_ranges.iter().map(|range| {
7791 let position = Point::new(range.start.row, min_column);
7792 (position..position, first_prefix.clone())
7793 }));
7794 }
7795 } else if let Some((full_comment_prefix, comment_suffix)) =
7796 language.block_comment_delimiters()
7797 {
7798 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7799 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7800 let prefix_range = comment_prefix_range(
7801 snapshot.deref(),
7802 start_row,
7803 comment_prefix,
7804 comment_prefix_whitespace,
7805 );
7806 let suffix_range = comment_suffix_range(
7807 snapshot.deref(),
7808 end_row,
7809 comment_suffix.trim_start_matches(' '),
7810 comment_suffix.starts_with(' '),
7811 );
7812
7813 if prefix_range.is_empty() || suffix_range.is_empty() {
7814 edits.push((
7815 prefix_range.start..prefix_range.start,
7816 full_comment_prefix.clone(),
7817 ));
7818 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7819 suffixes_inserted.push((end_row, comment_suffix.len()));
7820 } else {
7821 edits.push((prefix_range, empty_str.clone()));
7822 edits.push((suffix_range, empty_str.clone()));
7823 }
7824 } else {
7825 continue;
7826 }
7827 }
7828
7829 drop(snapshot);
7830 this.buffer.update(cx, |buffer, cx| {
7831 buffer.edit(edits, None, cx);
7832 });
7833
7834 // Adjust selections so that they end before any comment suffixes that
7835 // were inserted.
7836 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7837 let mut selections = this.selections.all::<Point>(cx);
7838 let snapshot = this.buffer.read(cx).read(cx);
7839 for selection in &mut selections {
7840 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7841 match row.cmp(&MultiBufferRow(selection.end.row)) {
7842 Ordering::Less => {
7843 suffixes_inserted.next();
7844 continue;
7845 }
7846 Ordering::Greater => break,
7847 Ordering::Equal => {
7848 if selection.end.column == snapshot.line_len(row) {
7849 if selection.is_empty() {
7850 selection.start.column -= suffix_len as u32;
7851 }
7852 selection.end.column -= suffix_len as u32;
7853 }
7854 break;
7855 }
7856 }
7857 }
7858 }
7859
7860 drop(snapshot);
7861 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7862
7863 let selections = this.selections.all::<Point>(cx);
7864 let selections_on_single_row = selections.windows(2).all(|selections| {
7865 selections[0].start.row == selections[1].start.row
7866 && selections[0].end.row == selections[1].end.row
7867 && selections[0].start.row == selections[0].end.row
7868 });
7869 let selections_selecting = selections
7870 .iter()
7871 .any(|selection| selection.start != selection.end);
7872 let advance_downwards = action.advance_downwards
7873 && selections_on_single_row
7874 && !selections_selecting
7875 && this.mode != EditorMode::SingleLine;
7876
7877 if advance_downwards {
7878 let snapshot = this.buffer.read(cx).snapshot(cx);
7879
7880 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7881 s.move_cursors_with(|display_snapshot, display_point, _| {
7882 let mut point = display_point.to_point(display_snapshot);
7883 point.row += 1;
7884 point = snapshot.clip_point(point, Bias::Left);
7885 let display_point = point.to_display_point(display_snapshot);
7886 let goal = SelectionGoal::HorizontalPosition(
7887 display_snapshot
7888 .x_for_display_point(display_point, &text_layout_details)
7889 .into(),
7890 );
7891 (display_point, goal)
7892 })
7893 });
7894 }
7895 });
7896 }
7897
7898 pub fn select_larger_syntax_node(
7899 &mut self,
7900 _: &SelectLargerSyntaxNode,
7901 cx: &mut ViewContext<Self>,
7902 ) {
7903 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7904 let buffer = self.buffer.read(cx).snapshot(cx);
7905 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7906
7907 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7908 let mut selected_larger_node = false;
7909 let new_selections = old_selections
7910 .iter()
7911 .map(|selection| {
7912 let old_range = selection.start..selection.end;
7913 let mut new_range = old_range.clone();
7914 while let Some(containing_range) =
7915 buffer.range_for_syntax_ancestor(new_range.clone())
7916 {
7917 new_range = containing_range;
7918 if !display_map.intersects_fold(new_range.start)
7919 && !display_map.intersects_fold(new_range.end)
7920 {
7921 break;
7922 }
7923 }
7924
7925 selected_larger_node |= new_range != old_range;
7926 Selection {
7927 id: selection.id,
7928 start: new_range.start,
7929 end: new_range.end,
7930 goal: SelectionGoal::None,
7931 reversed: selection.reversed,
7932 }
7933 })
7934 .collect::<Vec<_>>();
7935
7936 if selected_larger_node {
7937 stack.push(old_selections);
7938 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7939 s.select(new_selections);
7940 });
7941 }
7942 self.select_larger_syntax_node_stack = stack;
7943 }
7944
7945 pub fn select_smaller_syntax_node(
7946 &mut self,
7947 _: &SelectSmallerSyntaxNode,
7948 cx: &mut ViewContext<Self>,
7949 ) {
7950 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7951 if let Some(selections) = stack.pop() {
7952 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7953 s.select(selections.to_vec());
7954 });
7955 }
7956 self.select_larger_syntax_node_stack = stack;
7957 }
7958
7959 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7960 let project = self.project.clone();
7961 cx.spawn(|this, mut cx| async move {
7962 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7963 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7964 }) else {
7965 return;
7966 };
7967
7968 let Some(project) = project else {
7969 return;
7970 };
7971
7972 let hide_runnables = project
7973 .update(&mut cx, |project, cx| {
7974 // Do not display any test indicators in non-dev server remote projects.
7975 project.is_remote() && project.ssh_connection_string(cx).is_none()
7976 })
7977 .unwrap_or(true);
7978 if hide_runnables {
7979 return;
7980 }
7981 let new_rows =
7982 cx.background_executor()
7983 .spawn({
7984 let snapshot = display_snapshot.clone();
7985 async move {
7986 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7987 }
7988 })
7989 .await;
7990 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7991
7992 this.update(&mut cx, |this, _| {
7993 this.clear_tasks();
7994 for (key, value) in rows {
7995 this.insert_tasks(key, value);
7996 }
7997 })
7998 .ok();
7999 })
8000 }
8001 fn fetch_runnable_ranges(
8002 snapshot: &DisplaySnapshot,
8003 range: Range<Anchor>,
8004 ) -> Vec<language::RunnableRange> {
8005 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8006 }
8007
8008 fn runnable_rows(
8009 project: Model<Project>,
8010 snapshot: DisplaySnapshot,
8011 runnable_ranges: Vec<RunnableRange>,
8012 mut cx: AsyncWindowContext,
8013 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8014 runnable_ranges
8015 .into_iter()
8016 .filter_map(|mut runnable| {
8017 let tasks = cx
8018 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8019 .ok()?;
8020 if tasks.is_empty() {
8021 return None;
8022 }
8023
8024 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8025
8026 let row = snapshot
8027 .buffer_snapshot
8028 .buffer_line_for_row(MultiBufferRow(point.row))?
8029 .1
8030 .start
8031 .row;
8032
8033 let context_range =
8034 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8035 Some((
8036 (runnable.buffer_id, row),
8037 RunnableTasks {
8038 templates: tasks,
8039 offset: MultiBufferOffset(runnable.run_range.start),
8040 context_range,
8041 column: point.column,
8042 extra_variables: runnable.extra_captures,
8043 },
8044 ))
8045 })
8046 .collect()
8047 }
8048
8049 fn templates_with_tags(
8050 project: &Model<Project>,
8051 runnable: &mut Runnable,
8052 cx: &WindowContext<'_>,
8053 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8054 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
8055 let worktree_id = project
8056 .buffer_for_id(runnable.buffer)
8057 .and_then(|buffer| buffer.read(cx).file())
8058 .map(|file| WorktreeId::from_usize(file.worktree_id()));
8059
8060 (project.task_inventory().clone(), worktree_id)
8061 });
8062
8063 let inventory = inventory.read(cx);
8064 let tags = mem::take(&mut runnable.tags);
8065 let mut tags: Vec<_> = tags
8066 .into_iter()
8067 .flat_map(|tag| {
8068 let tag = tag.0.clone();
8069 inventory
8070 .list_tasks(Some(runnable.language.clone()), worktree_id)
8071 .into_iter()
8072 .filter(move |(_, template)| {
8073 template.tags.iter().any(|source_tag| source_tag == &tag)
8074 })
8075 })
8076 .sorted_by_key(|(kind, _)| kind.to_owned())
8077 .collect();
8078 if let Some((leading_tag_source, _)) = tags.first() {
8079 // Strongest source wins; if we have worktree tag binding, prefer that to
8080 // global and language bindings;
8081 // if we have a global binding, prefer that to language binding.
8082 let first_mismatch = tags
8083 .iter()
8084 .position(|(tag_source, _)| tag_source != leading_tag_source);
8085 if let Some(index) = first_mismatch {
8086 tags.truncate(index);
8087 }
8088 }
8089
8090 tags
8091 }
8092
8093 pub fn move_to_enclosing_bracket(
8094 &mut self,
8095 _: &MoveToEnclosingBracket,
8096 cx: &mut ViewContext<Self>,
8097 ) {
8098 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8099 s.move_offsets_with(|snapshot, selection| {
8100 let Some(enclosing_bracket_ranges) =
8101 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8102 else {
8103 return;
8104 };
8105
8106 let mut best_length = usize::MAX;
8107 let mut best_inside = false;
8108 let mut best_in_bracket_range = false;
8109 let mut best_destination = None;
8110 for (open, close) in enclosing_bracket_ranges {
8111 let close = close.to_inclusive();
8112 let length = close.end() - open.start;
8113 let inside = selection.start >= open.end && selection.end <= *close.start();
8114 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8115 || close.contains(&selection.head());
8116
8117 // If best is next to a bracket and current isn't, skip
8118 if !in_bracket_range && best_in_bracket_range {
8119 continue;
8120 }
8121
8122 // Prefer smaller lengths unless best is inside and current isn't
8123 if length > best_length && (best_inside || !inside) {
8124 continue;
8125 }
8126
8127 best_length = length;
8128 best_inside = inside;
8129 best_in_bracket_range = in_bracket_range;
8130 best_destination = Some(
8131 if close.contains(&selection.start) && close.contains(&selection.end) {
8132 if inside {
8133 open.end
8134 } else {
8135 open.start
8136 }
8137 } else {
8138 if inside {
8139 *close.start()
8140 } else {
8141 *close.end()
8142 }
8143 },
8144 );
8145 }
8146
8147 if let Some(destination) = best_destination {
8148 selection.collapse_to(destination, SelectionGoal::None);
8149 }
8150 })
8151 });
8152 }
8153
8154 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8155 self.end_selection(cx);
8156 self.selection_history.mode = SelectionHistoryMode::Undoing;
8157 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8158 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8159 self.select_next_state = entry.select_next_state;
8160 self.select_prev_state = entry.select_prev_state;
8161 self.add_selections_state = entry.add_selections_state;
8162 self.request_autoscroll(Autoscroll::newest(), cx);
8163 }
8164 self.selection_history.mode = SelectionHistoryMode::Normal;
8165 }
8166
8167 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8168 self.end_selection(cx);
8169 self.selection_history.mode = SelectionHistoryMode::Redoing;
8170 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8171 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8172 self.select_next_state = entry.select_next_state;
8173 self.select_prev_state = entry.select_prev_state;
8174 self.add_selections_state = entry.add_selections_state;
8175 self.request_autoscroll(Autoscroll::newest(), cx);
8176 }
8177 self.selection_history.mode = SelectionHistoryMode::Normal;
8178 }
8179
8180 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8181 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8182 }
8183
8184 pub fn expand_excerpts_down(
8185 &mut self,
8186 action: &ExpandExcerptsDown,
8187 cx: &mut ViewContext<Self>,
8188 ) {
8189 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8190 }
8191
8192 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8193 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8194 }
8195
8196 pub fn expand_excerpts_for_direction(
8197 &mut self,
8198 lines: u32,
8199 direction: ExpandExcerptDirection,
8200 cx: &mut ViewContext<Self>,
8201 ) {
8202 let selections = self.selections.disjoint_anchors();
8203
8204 let lines = if lines == 0 {
8205 EditorSettings::get_global(cx).expand_excerpt_lines
8206 } else {
8207 lines
8208 };
8209
8210 self.buffer.update(cx, |buffer, cx| {
8211 buffer.expand_excerpts(
8212 selections
8213 .into_iter()
8214 .map(|selection| selection.head().excerpt_id)
8215 .dedup(),
8216 lines,
8217 direction,
8218 cx,
8219 )
8220 })
8221 }
8222
8223 pub fn expand_excerpt(
8224 &mut self,
8225 excerpt: ExcerptId,
8226 direction: ExpandExcerptDirection,
8227 cx: &mut ViewContext<Self>,
8228 ) {
8229 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8230 self.buffer.update(cx, |buffer, cx| {
8231 buffer.expand_excerpts([excerpt], lines, direction, cx)
8232 })
8233 }
8234
8235 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8236 self.go_to_diagnostic_impl(Direction::Next, cx)
8237 }
8238
8239 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8240 self.go_to_diagnostic_impl(Direction::Prev, cx)
8241 }
8242
8243 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8244 let buffer = self.buffer.read(cx).snapshot(cx);
8245 let selection = self.selections.newest::<usize>(cx);
8246
8247 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8248 if direction == Direction::Next {
8249 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8250 let (group_id, jump_to) = popover.activation_info();
8251 if self.activate_diagnostics(group_id, cx) {
8252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8253 let mut new_selection = s.newest_anchor().clone();
8254 new_selection.collapse_to(jump_to, SelectionGoal::None);
8255 s.select_anchors(vec![new_selection.clone()]);
8256 });
8257 }
8258 return;
8259 }
8260 }
8261
8262 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8263 active_diagnostics
8264 .primary_range
8265 .to_offset(&buffer)
8266 .to_inclusive()
8267 });
8268 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8269 if active_primary_range.contains(&selection.head()) {
8270 *active_primary_range.start()
8271 } else {
8272 selection.head()
8273 }
8274 } else {
8275 selection.head()
8276 };
8277 let snapshot = self.snapshot(cx);
8278 loop {
8279 let diagnostics = if direction == Direction::Prev {
8280 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8281 } else {
8282 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8283 }
8284 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8285 let group = diagnostics
8286 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8287 // be sorted in a stable way
8288 // skip until we are at current active diagnostic, if it exists
8289 .skip_while(|entry| {
8290 (match direction {
8291 Direction::Prev => entry.range.start >= search_start,
8292 Direction::Next => entry.range.start <= search_start,
8293 }) && self
8294 .active_diagnostics
8295 .as_ref()
8296 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8297 })
8298 .find_map(|entry| {
8299 if entry.diagnostic.is_primary
8300 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8301 && !entry.range.is_empty()
8302 // if we match with the active diagnostic, skip it
8303 && Some(entry.diagnostic.group_id)
8304 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8305 {
8306 Some((entry.range, entry.diagnostic.group_id))
8307 } else {
8308 None
8309 }
8310 });
8311
8312 if let Some((primary_range, group_id)) = group {
8313 if self.activate_diagnostics(group_id, cx) {
8314 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8315 s.select(vec![Selection {
8316 id: selection.id,
8317 start: primary_range.start,
8318 end: primary_range.start,
8319 reversed: false,
8320 goal: SelectionGoal::None,
8321 }]);
8322 });
8323 }
8324 break;
8325 } else {
8326 // Cycle around to the start of the buffer, potentially moving back to the start of
8327 // the currently active diagnostic.
8328 active_primary_range.take();
8329 if direction == Direction::Prev {
8330 if search_start == buffer.len() {
8331 break;
8332 } else {
8333 search_start = buffer.len();
8334 }
8335 } else if search_start == 0 {
8336 break;
8337 } else {
8338 search_start = 0;
8339 }
8340 }
8341 }
8342 }
8343
8344 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8345 let snapshot = self
8346 .display_map
8347 .update(cx, |display_map, cx| display_map.snapshot(cx));
8348 let selection = self.selections.newest::<Point>(cx);
8349
8350 if !self.seek_in_direction(
8351 &snapshot,
8352 selection.head(),
8353 false,
8354 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8355 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8356 ),
8357 cx,
8358 ) {
8359 let wrapped_point = Point::zero();
8360 self.seek_in_direction(
8361 &snapshot,
8362 wrapped_point,
8363 true,
8364 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8365 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8366 ),
8367 cx,
8368 );
8369 }
8370 }
8371
8372 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8373 let snapshot = self
8374 .display_map
8375 .update(cx, |display_map, cx| display_map.snapshot(cx));
8376 let selection = self.selections.newest::<Point>(cx);
8377
8378 if !self.seek_in_direction(
8379 &snapshot,
8380 selection.head(),
8381 false,
8382 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8383 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8384 ),
8385 cx,
8386 ) {
8387 let wrapped_point = snapshot.buffer_snapshot.max_point();
8388 self.seek_in_direction(
8389 &snapshot,
8390 wrapped_point,
8391 true,
8392 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8393 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8394 ),
8395 cx,
8396 );
8397 }
8398 }
8399
8400 fn seek_in_direction(
8401 &mut self,
8402 snapshot: &DisplaySnapshot,
8403 initial_point: Point,
8404 is_wrapped: bool,
8405 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8406 cx: &mut ViewContext<Editor>,
8407 ) -> bool {
8408 let display_point = initial_point.to_display_point(snapshot);
8409 let mut hunks = hunks
8410 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8411 .filter(|hunk| {
8412 if is_wrapped {
8413 true
8414 } else {
8415 !hunk.contains_display_row(display_point.row())
8416 }
8417 })
8418 .dedup();
8419
8420 if let Some(hunk) = hunks.next() {
8421 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8422 let row = hunk.start_display_row();
8423 let point = DisplayPoint::new(row, 0);
8424 s.select_display_ranges([point..point]);
8425 });
8426
8427 true
8428 } else {
8429 false
8430 }
8431 }
8432
8433 pub fn go_to_definition(
8434 &mut self,
8435 _: &GoToDefinition,
8436 cx: &mut ViewContext<Self>,
8437 ) -> Task<Result<bool>> {
8438 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8439 }
8440
8441 pub fn go_to_implementation(
8442 &mut self,
8443 _: &GoToImplementation,
8444 cx: &mut ViewContext<Self>,
8445 ) -> Task<Result<bool>> {
8446 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8447 }
8448
8449 pub fn go_to_implementation_split(
8450 &mut self,
8451 _: &GoToImplementationSplit,
8452 cx: &mut ViewContext<Self>,
8453 ) -> Task<Result<bool>> {
8454 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8455 }
8456
8457 pub fn go_to_type_definition(
8458 &mut self,
8459 _: &GoToTypeDefinition,
8460 cx: &mut ViewContext<Self>,
8461 ) -> Task<Result<bool>> {
8462 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8463 }
8464
8465 pub fn go_to_definition_split(
8466 &mut self,
8467 _: &GoToDefinitionSplit,
8468 cx: &mut ViewContext<Self>,
8469 ) -> Task<Result<bool>> {
8470 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8471 }
8472
8473 pub fn go_to_type_definition_split(
8474 &mut self,
8475 _: &GoToTypeDefinitionSplit,
8476 cx: &mut ViewContext<Self>,
8477 ) -> Task<Result<bool>> {
8478 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8479 }
8480
8481 fn go_to_definition_of_kind(
8482 &mut self,
8483 kind: GotoDefinitionKind,
8484 split: bool,
8485 cx: &mut ViewContext<Self>,
8486 ) -> Task<Result<bool>> {
8487 let Some(workspace) = self.workspace() else {
8488 return Task::ready(Ok(false));
8489 };
8490 let buffer = self.buffer.read(cx);
8491 let head = self.selections.newest::<usize>(cx).head();
8492 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8493 text_anchor
8494 } else {
8495 return Task::ready(Ok(false));
8496 };
8497
8498 let project = workspace.read(cx).project().clone();
8499 let definitions = project.update(cx, |project, cx| match kind {
8500 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8501 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8502 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8503 });
8504
8505 cx.spawn(|editor, mut cx| async move {
8506 let definitions = definitions.await?;
8507 let navigated = editor
8508 .update(&mut cx, |editor, cx| {
8509 editor.navigate_to_hover_links(
8510 Some(kind),
8511 definitions
8512 .into_iter()
8513 .filter(|location| {
8514 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8515 })
8516 .map(HoverLink::Text)
8517 .collect::<Vec<_>>(),
8518 split,
8519 cx,
8520 )
8521 })?
8522 .await?;
8523 anyhow::Ok(navigated)
8524 })
8525 }
8526
8527 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8528 let position = self.selections.newest_anchor().head();
8529 let Some((buffer, buffer_position)) =
8530 self.buffer.read(cx).text_anchor_for_position(position, cx)
8531 else {
8532 return;
8533 };
8534
8535 cx.spawn(|editor, mut cx| async move {
8536 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8537 editor.update(&mut cx, |_, cx| {
8538 cx.open_url(&url);
8539 })
8540 } else {
8541 Ok(())
8542 }
8543 })
8544 .detach();
8545 }
8546
8547 pub(crate) fn navigate_to_hover_links(
8548 &mut self,
8549 kind: Option<GotoDefinitionKind>,
8550 mut definitions: Vec<HoverLink>,
8551 split: bool,
8552 cx: &mut ViewContext<Editor>,
8553 ) -> Task<Result<bool>> {
8554 // If there is one definition, just open it directly
8555 if definitions.len() == 1 {
8556 let definition = definitions.pop().unwrap();
8557 let target_task = match definition {
8558 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8559 HoverLink::InlayHint(lsp_location, server_id) => {
8560 self.compute_target_location(lsp_location, server_id, cx)
8561 }
8562 HoverLink::Url(url) => {
8563 cx.open_url(&url);
8564 Task::ready(Ok(None))
8565 }
8566 };
8567 cx.spawn(|editor, mut cx| async move {
8568 let target = target_task.await.context("target resolution task")?;
8569 if let Some(target) = target {
8570 editor.update(&mut cx, |editor, cx| {
8571 let Some(workspace) = editor.workspace() else {
8572 return false;
8573 };
8574 let pane = workspace.read(cx).active_pane().clone();
8575
8576 let range = target.range.to_offset(target.buffer.read(cx));
8577 let range = editor.range_for_match(&range);
8578
8579 /// If select range has more than one line, we
8580 /// just point the cursor to range.start.
8581 fn check_multiline_range(
8582 buffer: &Buffer,
8583 range: Range<usize>,
8584 ) -> Range<usize> {
8585 if buffer.offset_to_point(range.start).row
8586 == buffer.offset_to_point(range.end).row
8587 {
8588 range
8589 } else {
8590 range.start..range.start
8591 }
8592 }
8593
8594 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8595 let buffer = target.buffer.read(cx);
8596 let range = check_multiline_range(buffer, range);
8597 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8598 s.select_ranges([range]);
8599 });
8600 } else {
8601 cx.window_context().defer(move |cx| {
8602 let target_editor: View<Self> =
8603 workspace.update(cx, |workspace, cx| {
8604 let pane = if split {
8605 workspace.adjacent_pane(cx)
8606 } else {
8607 workspace.active_pane().clone()
8608 };
8609
8610 workspace.open_project_item(pane, target.buffer.clone(), cx)
8611 });
8612 target_editor.update(cx, |target_editor, cx| {
8613 // When selecting a definition in a different buffer, disable the nav history
8614 // to avoid creating a history entry at the previous cursor location.
8615 pane.update(cx, |pane, _| pane.disable_history());
8616 let buffer = target.buffer.read(cx);
8617 let range = check_multiline_range(buffer, range);
8618 target_editor.change_selections(
8619 Some(Autoscroll::focused()),
8620 cx,
8621 |s| {
8622 s.select_ranges([range]);
8623 },
8624 );
8625 pane.update(cx, |pane, _| pane.enable_history());
8626 });
8627 });
8628 }
8629 true
8630 })
8631 } else {
8632 Ok(false)
8633 }
8634 })
8635 } else if !definitions.is_empty() {
8636 let replica_id = self.replica_id(cx);
8637 cx.spawn(|editor, mut cx| async move {
8638 let (title, location_tasks, workspace) = editor
8639 .update(&mut cx, |editor, cx| {
8640 let tab_kind = match kind {
8641 Some(GotoDefinitionKind::Implementation) => "Implementations",
8642 _ => "Definitions",
8643 };
8644 let title = definitions
8645 .iter()
8646 .find_map(|definition| match definition {
8647 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8648 let buffer = origin.buffer.read(cx);
8649 format!(
8650 "{} for {}",
8651 tab_kind,
8652 buffer
8653 .text_for_range(origin.range.clone())
8654 .collect::<String>()
8655 )
8656 }),
8657 HoverLink::InlayHint(_, _) => None,
8658 HoverLink::Url(_) => None,
8659 })
8660 .unwrap_or(tab_kind.to_string());
8661 let location_tasks = definitions
8662 .into_iter()
8663 .map(|definition| match definition {
8664 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8665 HoverLink::InlayHint(lsp_location, server_id) => {
8666 editor.compute_target_location(lsp_location, server_id, cx)
8667 }
8668 HoverLink::Url(_) => Task::ready(Ok(None)),
8669 })
8670 .collect::<Vec<_>>();
8671 (title, location_tasks, editor.workspace().clone())
8672 })
8673 .context("location tasks preparation")?;
8674
8675 let locations = futures::future::join_all(location_tasks)
8676 .await
8677 .into_iter()
8678 .filter_map(|location| location.transpose())
8679 .collect::<Result<_>>()
8680 .context("location tasks")?;
8681
8682 let Some(workspace) = workspace else {
8683 return Ok(false);
8684 };
8685 let opened = workspace
8686 .update(&mut cx, |workspace, cx| {
8687 Self::open_locations_in_multibuffer(
8688 workspace, locations, replica_id, title, split, cx,
8689 )
8690 })
8691 .ok();
8692
8693 anyhow::Ok(opened.is_some())
8694 })
8695 } else {
8696 Task::ready(Ok(false))
8697 }
8698 }
8699
8700 fn compute_target_location(
8701 &self,
8702 lsp_location: lsp::Location,
8703 server_id: LanguageServerId,
8704 cx: &mut ViewContext<Editor>,
8705 ) -> Task<anyhow::Result<Option<Location>>> {
8706 let Some(project) = self.project.clone() else {
8707 return Task::Ready(Some(Ok(None)));
8708 };
8709
8710 cx.spawn(move |editor, mut cx| async move {
8711 let location_task = editor.update(&mut cx, |editor, cx| {
8712 project.update(cx, |project, cx| {
8713 let language_server_name =
8714 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8715 project
8716 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8717 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8718 });
8719 language_server_name.map(|language_server_name| {
8720 project.open_local_buffer_via_lsp(
8721 lsp_location.uri.clone(),
8722 server_id,
8723 language_server_name,
8724 cx,
8725 )
8726 })
8727 })
8728 })?;
8729 let location = match location_task {
8730 Some(task) => Some({
8731 let target_buffer_handle = task.await.context("open local buffer")?;
8732 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8733 let target_start = target_buffer
8734 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8735 let target_end = target_buffer
8736 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8737 target_buffer.anchor_after(target_start)
8738 ..target_buffer.anchor_before(target_end)
8739 })?;
8740 Location {
8741 buffer: target_buffer_handle,
8742 range,
8743 }
8744 }),
8745 None => None,
8746 };
8747 Ok(location)
8748 })
8749 }
8750
8751 pub fn find_all_references(
8752 &mut self,
8753 _: &FindAllReferences,
8754 cx: &mut ViewContext<Self>,
8755 ) -> Option<Task<Result<()>>> {
8756 let multi_buffer = self.buffer.read(cx);
8757 let selection = self.selections.newest::<usize>(cx);
8758 let head = selection.head();
8759
8760 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8761 let head_anchor = multi_buffer_snapshot.anchor_at(
8762 head,
8763 if head < selection.tail() {
8764 Bias::Right
8765 } else {
8766 Bias::Left
8767 },
8768 );
8769
8770 match self
8771 .find_all_references_task_sources
8772 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8773 {
8774 Ok(_) => {
8775 log::info!(
8776 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8777 );
8778 return None;
8779 }
8780 Err(i) => {
8781 self.find_all_references_task_sources.insert(i, head_anchor);
8782 }
8783 }
8784
8785 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8786 let replica_id = self.replica_id(cx);
8787 let workspace = self.workspace()?;
8788 let project = workspace.read(cx).project().clone();
8789 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8790 Some(cx.spawn(|editor, mut cx| async move {
8791 let _cleanup = defer({
8792 let mut cx = cx.clone();
8793 move || {
8794 let _ = editor.update(&mut cx, |editor, _| {
8795 if let Ok(i) =
8796 editor
8797 .find_all_references_task_sources
8798 .binary_search_by(|anchor| {
8799 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8800 })
8801 {
8802 editor.find_all_references_task_sources.remove(i);
8803 }
8804 });
8805 }
8806 });
8807
8808 let locations = references.await?;
8809 if locations.is_empty() {
8810 return anyhow::Ok(());
8811 }
8812
8813 workspace.update(&mut cx, |workspace, cx| {
8814 let title = locations
8815 .first()
8816 .as_ref()
8817 .map(|location| {
8818 let buffer = location.buffer.read(cx);
8819 format!(
8820 "References to `{}`",
8821 buffer
8822 .text_for_range(location.range.clone())
8823 .collect::<String>()
8824 )
8825 })
8826 .unwrap();
8827 Self::open_locations_in_multibuffer(
8828 workspace, locations, replica_id, title, false, cx,
8829 );
8830 })
8831 }))
8832 }
8833
8834 /// Opens a multibuffer with the given project locations in it
8835 pub fn open_locations_in_multibuffer(
8836 workspace: &mut Workspace,
8837 mut locations: Vec<Location>,
8838 replica_id: ReplicaId,
8839 title: String,
8840 split: bool,
8841 cx: &mut ViewContext<Workspace>,
8842 ) {
8843 // If there are multiple definitions, open them in a multibuffer
8844 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8845 let mut locations = locations.into_iter().peekable();
8846 let mut ranges_to_highlight = Vec::new();
8847 let capability = workspace.project().read(cx).capability();
8848
8849 let excerpt_buffer = cx.new_model(|cx| {
8850 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8851 while let Some(location) = locations.next() {
8852 let buffer = location.buffer.read(cx);
8853 let mut ranges_for_buffer = Vec::new();
8854 let range = location.range.to_offset(buffer);
8855 ranges_for_buffer.push(range.clone());
8856
8857 while let Some(next_location) = locations.peek() {
8858 if next_location.buffer == location.buffer {
8859 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8860 locations.next();
8861 } else {
8862 break;
8863 }
8864 }
8865
8866 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8867 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8868 location.buffer.clone(),
8869 ranges_for_buffer,
8870 DEFAULT_MULTIBUFFER_CONTEXT,
8871 cx,
8872 ))
8873 }
8874
8875 multibuffer.with_title(title)
8876 });
8877
8878 let editor = cx.new_view(|cx| {
8879 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
8880 });
8881 editor.update(cx, |editor, cx| {
8882 editor.highlight_background::<Self>(
8883 &ranges_to_highlight,
8884 |theme| theme.editor_highlighted_line_background,
8885 cx,
8886 );
8887 });
8888
8889 let item = Box::new(editor);
8890 let item_id = item.item_id();
8891
8892 if split {
8893 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8894 } else {
8895 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8896 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8897 pane.close_current_preview_item(cx)
8898 } else {
8899 None
8900 }
8901 });
8902 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8903 }
8904 workspace.active_pane().update(cx, |pane, cx| {
8905 pane.set_preview_item_id(Some(item_id), cx);
8906 });
8907 }
8908
8909 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8910 use language::ToOffset as _;
8911
8912 let project = self.project.clone()?;
8913 let selection = self.selections.newest_anchor().clone();
8914 let (cursor_buffer, cursor_buffer_position) = self
8915 .buffer
8916 .read(cx)
8917 .text_anchor_for_position(selection.head(), cx)?;
8918 let (tail_buffer, cursor_buffer_position_end) = self
8919 .buffer
8920 .read(cx)
8921 .text_anchor_for_position(selection.tail(), cx)?;
8922 if tail_buffer != cursor_buffer {
8923 return None;
8924 }
8925
8926 let snapshot = cursor_buffer.read(cx).snapshot();
8927 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8928 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8929 let prepare_rename = project.update(cx, |project, cx| {
8930 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8931 });
8932 drop(snapshot);
8933
8934 Some(cx.spawn(|this, mut cx| async move {
8935 let rename_range = if let Some(range) = prepare_rename.await? {
8936 Some(range)
8937 } else {
8938 this.update(&mut cx, |this, cx| {
8939 let buffer = this.buffer.read(cx).snapshot(cx);
8940 let mut buffer_highlights = this
8941 .document_highlights_for_position(selection.head(), &buffer)
8942 .filter(|highlight| {
8943 highlight.start.excerpt_id == selection.head().excerpt_id
8944 && highlight.end.excerpt_id == selection.head().excerpt_id
8945 });
8946 buffer_highlights
8947 .next()
8948 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8949 })?
8950 };
8951 if let Some(rename_range) = rename_range {
8952 this.update(&mut cx, |this, cx| {
8953 let snapshot = cursor_buffer.read(cx).snapshot();
8954 let rename_buffer_range = rename_range.to_offset(&snapshot);
8955 let cursor_offset_in_rename_range =
8956 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8957 let cursor_offset_in_rename_range_end =
8958 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8959
8960 this.take_rename(false, cx);
8961 let buffer = this.buffer.read(cx).read(cx);
8962 let cursor_offset = selection.head().to_offset(&buffer);
8963 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8964 let rename_end = rename_start + rename_buffer_range.len();
8965 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8966 let mut old_highlight_id = None;
8967 let old_name: Arc<str> = buffer
8968 .chunks(rename_start..rename_end, true)
8969 .map(|chunk| {
8970 if old_highlight_id.is_none() {
8971 old_highlight_id = chunk.syntax_highlight_id;
8972 }
8973 chunk.text
8974 })
8975 .collect::<String>()
8976 .into();
8977
8978 drop(buffer);
8979
8980 // Position the selection in the rename editor so that it matches the current selection.
8981 this.show_local_selections = false;
8982 let rename_editor = cx.new_view(|cx| {
8983 let mut editor = Editor::single_line(cx);
8984 editor.buffer.update(cx, |buffer, cx| {
8985 buffer.edit([(0..0, old_name.clone())], None, cx)
8986 });
8987 let rename_selection_range = match cursor_offset_in_rename_range
8988 .cmp(&cursor_offset_in_rename_range_end)
8989 {
8990 Ordering::Equal => {
8991 editor.select_all(&SelectAll, cx);
8992 return editor;
8993 }
8994 Ordering::Less => {
8995 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8996 }
8997 Ordering::Greater => {
8998 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8999 }
9000 };
9001 if rename_selection_range.end > old_name.len() {
9002 editor.select_all(&SelectAll, cx);
9003 } else {
9004 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9005 s.select_ranges([rename_selection_range]);
9006 });
9007 }
9008 editor
9009 });
9010
9011 let write_highlights =
9012 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9013 let read_highlights =
9014 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9015 let ranges = write_highlights
9016 .iter()
9017 .flat_map(|(_, ranges)| ranges.iter())
9018 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9019 .cloned()
9020 .collect();
9021
9022 this.highlight_text::<Rename>(
9023 ranges,
9024 HighlightStyle {
9025 fade_out: Some(0.6),
9026 ..Default::default()
9027 },
9028 cx,
9029 );
9030 let rename_focus_handle = rename_editor.focus_handle(cx);
9031 cx.focus(&rename_focus_handle);
9032 let block_id = this.insert_blocks(
9033 [BlockProperties {
9034 style: BlockStyle::Flex,
9035 position: range.start,
9036 height: 1,
9037 render: Box::new({
9038 let rename_editor = rename_editor.clone();
9039 move |cx: &mut BlockContext| {
9040 let mut text_style = cx.editor_style.text.clone();
9041 if let Some(highlight_style) = old_highlight_id
9042 .and_then(|h| h.style(&cx.editor_style.syntax))
9043 {
9044 text_style = text_style.highlight(highlight_style);
9045 }
9046 div()
9047 .pl(cx.anchor_x)
9048 .child(EditorElement::new(
9049 &rename_editor,
9050 EditorStyle {
9051 background: cx.theme().system().transparent,
9052 local_player: cx.editor_style.local_player,
9053 text: text_style,
9054 scrollbar_width: cx.editor_style.scrollbar_width,
9055 syntax: cx.editor_style.syntax.clone(),
9056 status: cx.editor_style.status.clone(),
9057 inlay_hints_style: HighlightStyle {
9058 color: Some(cx.theme().status().hint),
9059 font_weight: Some(FontWeight::BOLD),
9060 ..HighlightStyle::default()
9061 },
9062 suggestions_style: HighlightStyle {
9063 color: Some(cx.theme().status().predictive),
9064 ..HighlightStyle::default()
9065 },
9066 },
9067 ))
9068 .into_any_element()
9069 }
9070 }),
9071 disposition: BlockDisposition::Below,
9072 }],
9073 Some(Autoscroll::fit()),
9074 cx,
9075 )[0];
9076 this.pending_rename = Some(RenameState {
9077 range,
9078 old_name,
9079 editor: rename_editor,
9080 block_id,
9081 });
9082 })?;
9083 }
9084
9085 Ok(())
9086 }))
9087 }
9088
9089 pub fn confirm_rename(
9090 &mut self,
9091 _: &ConfirmRename,
9092 cx: &mut ViewContext<Self>,
9093 ) -> Option<Task<Result<()>>> {
9094 let rename = self.take_rename(false, cx)?;
9095 let workspace = self.workspace()?;
9096 let (start_buffer, start) = self
9097 .buffer
9098 .read(cx)
9099 .text_anchor_for_position(rename.range.start, cx)?;
9100 let (end_buffer, end) = self
9101 .buffer
9102 .read(cx)
9103 .text_anchor_for_position(rename.range.end, cx)?;
9104 if start_buffer != end_buffer {
9105 return None;
9106 }
9107
9108 let buffer = start_buffer;
9109 let range = start..end;
9110 let old_name = rename.old_name;
9111 let new_name = rename.editor.read(cx).text(cx);
9112
9113 let rename = workspace
9114 .read(cx)
9115 .project()
9116 .clone()
9117 .update(cx, |project, cx| {
9118 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9119 });
9120 let workspace = workspace.downgrade();
9121
9122 Some(cx.spawn(|editor, mut cx| async move {
9123 let project_transaction = rename.await?;
9124 Self::open_project_transaction(
9125 &editor,
9126 workspace,
9127 project_transaction,
9128 format!("Rename: {} → {}", old_name, new_name),
9129 cx.clone(),
9130 )
9131 .await?;
9132
9133 editor.update(&mut cx, |editor, cx| {
9134 editor.refresh_document_highlights(cx);
9135 })?;
9136 Ok(())
9137 }))
9138 }
9139
9140 fn take_rename(
9141 &mut self,
9142 moving_cursor: bool,
9143 cx: &mut ViewContext<Self>,
9144 ) -> Option<RenameState> {
9145 let rename = self.pending_rename.take()?;
9146 if rename.editor.focus_handle(cx).is_focused(cx) {
9147 cx.focus(&self.focus_handle);
9148 }
9149
9150 self.remove_blocks(
9151 [rename.block_id].into_iter().collect(),
9152 Some(Autoscroll::fit()),
9153 cx,
9154 );
9155 self.clear_highlights::<Rename>(cx);
9156 self.show_local_selections = true;
9157
9158 if moving_cursor {
9159 let rename_editor = rename.editor.read(cx);
9160 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9161
9162 // Update the selection to match the position of the selection inside
9163 // the rename editor.
9164 let snapshot = self.buffer.read(cx).read(cx);
9165 let rename_range = rename.range.to_offset(&snapshot);
9166 let cursor_in_editor = snapshot
9167 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9168 .min(rename_range.end);
9169 drop(snapshot);
9170
9171 self.change_selections(None, cx, |s| {
9172 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9173 });
9174 } else {
9175 self.refresh_document_highlights(cx);
9176 }
9177
9178 Some(rename)
9179 }
9180
9181 pub fn pending_rename(&self) -> Option<&RenameState> {
9182 self.pending_rename.as_ref()
9183 }
9184
9185 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9186 let project = match &self.project {
9187 Some(project) => project.clone(),
9188 None => return None,
9189 };
9190
9191 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9192 }
9193
9194 fn perform_format(
9195 &mut self,
9196 project: Model<Project>,
9197 trigger: FormatTrigger,
9198 cx: &mut ViewContext<Self>,
9199 ) -> Task<Result<()>> {
9200 let buffer = self.buffer().clone();
9201 let mut buffers = buffer.read(cx).all_buffers();
9202 if trigger == FormatTrigger::Save {
9203 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9204 }
9205
9206 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9207 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9208
9209 cx.spawn(|_, mut cx| async move {
9210 let transaction = futures::select_biased! {
9211 () = timeout => {
9212 log::warn!("timed out waiting for formatting");
9213 None
9214 }
9215 transaction = format.log_err().fuse() => transaction,
9216 };
9217
9218 buffer
9219 .update(&mut cx, |buffer, cx| {
9220 if let Some(transaction) = transaction {
9221 if !buffer.is_singleton() {
9222 buffer.push_transaction(&transaction.0, cx);
9223 }
9224 }
9225
9226 cx.notify();
9227 })
9228 .ok();
9229
9230 Ok(())
9231 })
9232 }
9233
9234 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9235 if let Some(project) = self.project.clone() {
9236 self.buffer.update(cx, |multi_buffer, cx| {
9237 project.update(cx, |project, cx| {
9238 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9239 });
9240 })
9241 }
9242 }
9243
9244 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9245 cx.show_character_palette();
9246 }
9247
9248 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9249 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9250 let buffer = self.buffer.read(cx).snapshot(cx);
9251 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9252 let is_valid = buffer
9253 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9254 .any(|entry| {
9255 entry.diagnostic.is_primary
9256 && !entry.range.is_empty()
9257 && entry.range.start == primary_range_start
9258 && entry.diagnostic.message == active_diagnostics.primary_message
9259 });
9260
9261 if is_valid != active_diagnostics.is_valid {
9262 active_diagnostics.is_valid = is_valid;
9263 let mut new_styles = HashMap::default();
9264 for (block_id, diagnostic) in &active_diagnostics.blocks {
9265 new_styles.insert(
9266 *block_id,
9267 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9268 );
9269 }
9270 self.display_map
9271 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9272 }
9273 }
9274 }
9275
9276 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9277 self.dismiss_diagnostics(cx);
9278 let snapshot = self.snapshot(cx);
9279 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9280 let buffer = self.buffer.read(cx).snapshot(cx);
9281
9282 let mut primary_range = None;
9283 let mut primary_message = None;
9284 let mut group_end = Point::zero();
9285 let diagnostic_group = buffer
9286 .diagnostic_group::<MultiBufferPoint>(group_id)
9287 .filter_map(|entry| {
9288 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9289 && (entry.range.start.row == entry.range.end.row
9290 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9291 {
9292 return None;
9293 }
9294 if entry.range.end > group_end {
9295 group_end = entry.range.end;
9296 }
9297 if entry.diagnostic.is_primary {
9298 primary_range = Some(entry.range.clone());
9299 primary_message = Some(entry.diagnostic.message.clone());
9300 }
9301 Some(entry)
9302 })
9303 .collect::<Vec<_>>();
9304 let primary_range = primary_range?;
9305 let primary_message = primary_message?;
9306 let primary_range =
9307 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9308
9309 let blocks = display_map
9310 .insert_blocks(
9311 diagnostic_group.iter().map(|entry| {
9312 let diagnostic = entry.diagnostic.clone();
9313 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9314 BlockProperties {
9315 style: BlockStyle::Fixed,
9316 position: buffer.anchor_after(entry.range.start),
9317 height: message_height,
9318 render: diagnostic_block_renderer(diagnostic, true),
9319 disposition: BlockDisposition::Below,
9320 }
9321 }),
9322 cx,
9323 )
9324 .into_iter()
9325 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9326 .collect();
9327
9328 Some(ActiveDiagnosticGroup {
9329 primary_range,
9330 primary_message,
9331 group_id,
9332 blocks,
9333 is_valid: true,
9334 })
9335 });
9336 self.active_diagnostics.is_some()
9337 }
9338
9339 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9340 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9341 self.display_map.update(cx, |display_map, cx| {
9342 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9343 });
9344 cx.notify();
9345 }
9346 }
9347
9348 pub fn set_selections_from_remote(
9349 &mut self,
9350 selections: Vec<Selection<Anchor>>,
9351 pending_selection: Option<Selection<Anchor>>,
9352 cx: &mut ViewContext<Self>,
9353 ) {
9354 let old_cursor_position = self.selections.newest_anchor().head();
9355 self.selections.change_with(cx, |s| {
9356 s.select_anchors(selections);
9357 if let Some(pending_selection) = pending_selection {
9358 s.set_pending(pending_selection, SelectMode::Character);
9359 } else {
9360 s.clear_pending();
9361 }
9362 });
9363 self.selections_did_change(false, &old_cursor_position, true, cx);
9364 }
9365
9366 fn push_to_selection_history(&mut self) {
9367 self.selection_history.push(SelectionHistoryEntry {
9368 selections: self.selections.disjoint_anchors(),
9369 select_next_state: self.select_next_state.clone(),
9370 select_prev_state: self.select_prev_state.clone(),
9371 add_selections_state: self.add_selections_state.clone(),
9372 });
9373 }
9374
9375 pub fn transact(
9376 &mut self,
9377 cx: &mut ViewContext<Self>,
9378 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9379 ) -> Option<TransactionId> {
9380 self.start_transaction_at(Instant::now(), cx);
9381 update(self, cx);
9382 self.end_transaction_at(Instant::now(), cx)
9383 }
9384
9385 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9386 self.end_selection(cx);
9387 if let Some(tx_id) = self
9388 .buffer
9389 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9390 {
9391 self.selection_history
9392 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9393 cx.emit(EditorEvent::TransactionBegun {
9394 transaction_id: tx_id,
9395 })
9396 }
9397 }
9398
9399 fn end_transaction_at(
9400 &mut self,
9401 now: Instant,
9402 cx: &mut ViewContext<Self>,
9403 ) -> Option<TransactionId> {
9404 if let Some(tx_id) = self
9405 .buffer
9406 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9407 {
9408 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9409 *end_selections = Some(self.selections.disjoint_anchors());
9410 } else {
9411 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9412 }
9413
9414 cx.emit(EditorEvent::Edited);
9415 Some(tx_id)
9416 } else {
9417 None
9418 }
9419 }
9420
9421 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9422 let mut fold_ranges = Vec::new();
9423
9424 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9425
9426 let selections = self.selections.all_adjusted(cx);
9427 for selection in selections {
9428 let range = selection.range().sorted();
9429 let buffer_start_row = range.start.row;
9430
9431 for row in (0..=range.end.row).rev() {
9432 if let Some((foldable_range, fold_text)) =
9433 display_map.foldable_range(MultiBufferRow(row))
9434 {
9435 if foldable_range.end.row >= buffer_start_row {
9436 fold_ranges.push((foldable_range, fold_text));
9437 if row <= range.start.row {
9438 break;
9439 }
9440 }
9441 }
9442 }
9443 }
9444
9445 self.fold_ranges(fold_ranges, true, cx);
9446 }
9447
9448 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9449 let buffer_row = fold_at.buffer_row;
9450 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9451
9452 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9453 let autoscroll = self
9454 .selections
9455 .all::<Point>(cx)
9456 .iter()
9457 .any(|selection| fold_range.overlaps(&selection.range()));
9458
9459 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9460 }
9461 }
9462
9463 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9464 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9465 let buffer = &display_map.buffer_snapshot;
9466 let selections = self.selections.all::<Point>(cx);
9467 let ranges = selections
9468 .iter()
9469 .map(|s| {
9470 let range = s.display_range(&display_map).sorted();
9471 let mut start = range.start.to_point(&display_map);
9472 let mut end = range.end.to_point(&display_map);
9473 start.column = 0;
9474 end.column = buffer.line_len(MultiBufferRow(end.row));
9475 start..end
9476 })
9477 .collect::<Vec<_>>();
9478
9479 self.unfold_ranges(ranges, true, true, cx);
9480 }
9481
9482 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9483 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9484
9485 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9486 ..Point::new(
9487 unfold_at.buffer_row.0,
9488 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9489 );
9490
9491 let autoscroll = self
9492 .selections
9493 .all::<Point>(cx)
9494 .iter()
9495 .any(|selection| selection.range().overlaps(&intersection_range));
9496
9497 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9498 }
9499
9500 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9501 let selections = self.selections.all::<Point>(cx);
9502 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9503 let line_mode = self.selections.line_mode;
9504 let ranges = selections.into_iter().map(|s| {
9505 if line_mode {
9506 let start = Point::new(s.start.row, 0);
9507 let end = Point::new(
9508 s.end.row,
9509 display_map
9510 .buffer_snapshot
9511 .line_len(MultiBufferRow(s.end.row)),
9512 );
9513 (start..end, display_map.fold_placeholder.clone())
9514 } else {
9515 (s.start..s.end, display_map.fold_placeholder.clone())
9516 }
9517 });
9518 self.fold_ranges(ranges, true, cx);
9519 }
9520
9521 pub fn fold_ranges<T: ToOffset + Clone>(
9522 &mut self,
9523 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9524 auto_scroll: bool,
9525 cx: &mut ViewContext<Self>,
9526 ) {
9527 let mut fold_ranges = Vec::new();
9528 let mut buffers_affected = HashMap::default();
9529 let multi_buffer = self.buffer().read(cx);
9530 for (fold_range, fold_text) in ranges {
9531 if let Some((_, buffer, _)) =
9532 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9533 {
9534 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9535 };
9536 fold_ranges.push((fold_range, fold_text));
9537 }
9538
9539 let mut ranges = fold_ranges.into_iter().peekable();
9540 if ranges.peek().is_some() {
9541 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9542
9543 if auto_scroll {
9544 self.request_autoscroll(Autoscroll::fit(), cx);
9545 }
9546
9547 for buffer in buffers_affected.into_values() {
9548 self.sync_expanded_diff_hunks(buffer, cx);
9549 }
9550
9551 cx.notify();
9552
9553 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9554 // Clear diagnostics block when folding a range that contains it.
9555 let snapshot = self.snapshot(cx);
9556 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9557 drop(snapshot);
9558 self.active_diagnostics = Some(active_diagnostics);
9559 self.dismiss_diagnostics(cx);
9560 } else {
9561 self.active_diagnostics = Some(active_diagnostics);
9562 }
9563 }
9564
9565 self.scrollbar_marker_state.dirty = true;
9566 }
9567 }
9568
9569 pub fn unfold_ranges<T: ToOffset + Clone>(
9570 &mut self,
9571 ranges: impl IntoIterator<Item = Range<T>>,
9572 inclusive: bool,
9573 auto_scroll: bool,
9574 cx: &mut ViewContext<Self>,
9575 ) {
9576 let mut unfold_ranges = Vec::new();
9577 let mut buffers_affected = HashMap::default();
9578 let multi_buffer = self.buffer().read(cx);
9579 for range in ranges {
9580 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9581 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9582 };
9583 unfold_ranges.push(range);
9584 }
9585
9586 let mut ranges = unfold_ranges.into_iter().peekable();
9587 if ranges.peek().is_some() {
9588 self.display_map
9589 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9590 if auto_scroll {
9591 self.request_autoscroll(Autoscroll::fit(), cx);
9592 }
9593
9594 for buffer in buffers_affected.into_values() {
9595 self.sync_expanded_diff_hunks(buffer, cx);
9596 }
9597
9598 cx.notify();
9599 self.scrollbar_marker_state.dirty = true;
9600 self.active_indent_guides_state.dirty = true;
9601 }
9602 }
9603
9604 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9605 if hovered != self.gutter_hovered {
9606 self.gutter_hovered = hovered;
9607 cx.notify();
9608 }
9609 }
9610
9611 pub fn insert_blocks(
9612 &mut self,
9613 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9614 autoscroll: Option<Autoscroll>,
9615 cx: &mut ViewContext<Self>,
9616 ) -> Vec<BlockId> {
9617 let blocks = self
9618 .display_map
9619 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9620 if let Some(autoscroll) = autoscroll {
9621 self.request_autoscroll(autoscroll, cx);
9622 }
9623 blocks
9624 }
9625
9626 pub fn replace_blocks(
9627 &mut self,
9628 blocks: HashMap<BlockId, RenderBlock>,
9629 autoscroll: Option<Autoscroll>,
9630 cx: &mut ViewContext<Self>,
9631 ) {
9632 self.display_map
9633 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9634 if let Some(autoscroll) = autoscroll {
9635 self.request_autoscroll(autoscroll, cx);
9636 }
9637 }
9638
9639 pub fn remove_blocks(
9640 &mut self,
9641 block_ids: HashSet<BlockId>,
9642 autoscroll: Option<Autoscroll>,
9643 cx: &mut ViewContext<Self>,
9644 ) {
9645 self.display_map.update(cx, |display_map, cx| {
9646 display_map.remove_blocks(block_ids, cx)
9647 });
9648 if let Some(autoscroll) = autoscroll {
9649 self.request_autoscroll(autoscroll, cx);
9650 }
9651 }
9652
9653 pub fn insert_flaps(
9654 &mut self,
9655 flaps: impl IntoIterator<Item = Flap>,
9656 cx: &mut ViewContext<Self>,
9657 ) -> Vec<FlapId> {
9658 self.display_map
9659 .update(cx, |map, cx| map.insert_flaps(flaps, cx))
9660 }
9661
9662 pub fn remove_flaps(
9663 &mut self,
9664 ids: impl IntoIterator<Item = FlapId>,
9665 cx: &mut ViewContext<Self>,
9666 ) {
9667 self.display_map
9668 .update(cx, |map, cx| map.remove_flaps(ids, cx));
9669 }
9670
9671 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9672 self.display_map
9673 .update(cx, |map, cx| map.snapshot(cx))
9674 .longest_row()
9675 }
9676
9677 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9678 self.display_map
9679 .update(cx, |map, cx| map.snapshot(cx))
9680 .max_point()
9681 }
9682
9683 pub fn text(&self, cx: &AppContext) -> String {
9684 self.buffer.read(cx).read(cx).text()
9685 }
9686
9687 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9688 let text = self.text(cx);
9689 let text = text.trim();
9690
9691 if text.is_empty() {
9692 return None;
9693 }
9694
9695 Some(text.to_string())
9696 }
9697
9698 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9699 self.transact(cx, |this, cx| {
9700 this.buffer
9701 .read(cx)
9702 .as_singleton()
9703 .expect("you can only call set_text on editors for singleton buffers")
9704 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9705 });
9706 }
9707
9708 pub fn display_text(&self, cx: &mut AppContext) -> String {
9709 self.display_map
9710 .update(cx, |map, cx| map.snapshot(cx))
9711 .text()
9712 }
9713
9714 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9715 let mut wrap_guides = smallvec::smallvec![];
9716
9717 if self.show_wrap_guides == Some(false) {
9718 return wrap_guides;
9719 }
9720
9721 let settings = self.buffer.read(cx).settings_at(0, cx);
9722 if settings.show_wrap_guides {
9723 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9724 wrap_guides.push((soft_wrap as usize, true));
9725 }
9726 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9727 }
9728
9729 wrap_guides
9730 }
9731
9732 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9733 let settings = self.buffer.read(cx).settings_at(0, cx);
9734 let mode = self
9735 .soft_wrap_mode_override
9736 .unwrap_or_else(|| settings.soft_wrap);
9737 match mode {
9738 language_settings::SoftWrap::None => SoftWrap::None,
9739 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9740 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9741 language_settings::SoftWrap::PreferredLineLength => {
9742 SoftWrap::Column(settings.preferred_line_length)
9743 }
9744 }
9745 }
9746
9747 pub fn set_soft_wrap_mode(
9748 &mut self,
9749 mode: language_settings::SoftWrap,
9750 cx: &mut ViewContext<Self>,
9751 ) {
9752 self.soft_wrap_mode_override = Some(mode);
9753 cx.notify();
9754 }
9755
9756 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9757 let rem_size = cx.rem_size();
9758 self.display_map.update(cx, |map, cx| {
9759 map.set_font(
9760 style.text.font(),
9761 style.text.font_size.to_pixels(rem_size),
9762 cx,
9763 )
9764 });
9765 self.style = Some(style);
9766 }
9767
9768 pub fn style(&self) -> Option<&EditorStyle> {
9769 self.style.as_ref()
9770 }
9771
9772 // Called by the element. This method is not designed to be called outside of the editor
9773 // element's layout code because it does not notify when rewrapping is computed synchronously.
9774 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9775 self.display_map
9776 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9777 }
9778
9779 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9780 if self.soft_wrap_mode_override.is_some() {
9781 self.soft_wrap_mode_override.take();
9782 } else {
9783 let soft_wrap = match self.soft_wrap_mode(cx) {
9784 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9785 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9786 language_settings::SoftWrap::PreferLine
9787 }
9788 };
9789 self.soft_wrap_mode_override = Some(soft_wrap);
9790 }
9791 cx.notify();
9792 }
9793
9794 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
9795 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
9796 self.buffer
9797 .read(cx)
9798 .settings_at(0, cx)
9799 .indent_guides
9800 .enabled
9801 });
9802 self.show_indent_guides = Some(!currently_enabled);
9803 cx.notify();
9804 }
9805
9806 fn should_show_indent_guides(&self) -> Option<bool> {
9807 self.show_indent_guides
9808 }
9809
9810 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9811 let mut editor_settings = EditorSettings::get_global(cx).clone();
9812 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9813 EditorSettings::override_global(editor_settings, cx);
9814 }
9815
9816 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9817 self.show_gutter = show_gutter;
9818 cx.notify();
9819 }
9820
9821 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
9822 self.show_line_numbers = Some(show_line_numbers);
9823 cx.notify();
9824 }
9825
9826 pub fn set_show_git_diff_gutter(
9827 &mut self,
9828 show_git_diff_gutter: bool,
9829 cx: &mut ViewContext<Self>,
9830 ) {
9831 self.show_git_diff_gutter = Some(show_git_diff_gutter);
9832 cx.notify();
9833 }
9834
9835 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
9836 self.show_code_actions = Some(show_code_actions);
9837 cx.notify();
9838 }
9839
9840 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
9841 self.show_wrap_guides = Some(show_wrap_guides);
9842 cx.notify();
9843 }
9844
9845 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
9846 self.show_indent_guides = Some(show_indent_guides);
9847 cx.notify();
9848 }
9849
9850 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9851 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9852 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9853 cx.reveal_path(&file.abs_path(cx));
9854 }
9855 }
9856 }
9857
9858 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9859 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9860 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9861 if let Some(path) = file.abs_path(cx).to_str() {
9862 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9863 }
9864 }
9865 }
9866 }
9867
9868 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9869 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9870 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9871 if let Some(path) = file.path().to_str() {
9872 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9873 }
9874 }
9875 }
9876 }
9877
9878 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9879 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9880
9881 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9882 self.start_git_blame(true, cx);
9883 }
9884
9885 cx.notify();
9886 }
9887
9888 pub fn toggle_git_blame_inline(
9889 &mut self,
9890 _: &ToggleGitBlameInline,
9891 cx: &mut ViewContext<Self>,
9892 ) {
9893 self.toggle_git_blame_inline_internal(true, cx);
9894 cx.notify();
9895 }
9896
9897 pub fn git_blame_inline_enabled(&self) -> bool {
9898 self.git_blame_inline_enabled
9899 }
9900
9901 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9902 if let Some(project) = self.project.as_ref() {
9903 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9904 return;
9905 };
9906
9907 if buffer.read(cx).file().is_none() {
9908 return;
9909 }
9910
9911 let focused = self.focus_handle(cx).contains_focused(cx);
9912
9913 let project = project.clone();
9914 let blame =
9915 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9916 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9917 self.blame = Some(blame);
9918 }
9919 }
9920
9921 fn toggle_git_blame_inline_internal(
9922 &mut self,
9923 user_triggered: bool,
9924 cx: &mut ViewContext<Self>,
9925 ) {
9926 if self.git_blame_inline_enabled {
9927 self.git_blame_inline_enabled = false;
9928 self.show_git_blame_inline = false;
9929 self.show_git_blame_inline_delay_task.take();
9930 } else {
9931 self.git_blame_inline_enabled = true;
9932 self.start_git_blame_inline(user_triggered, cx);
9933 }
9934
9935 cx.notify();
9936 }
9937
9938 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9939 self.start_git_blame(user_triggered, cx);
9940
9941 if ProjectSettings::get_global(cx)
9942 .git
9943 .inline_blame_delay()
9944 .is_some()
9945 {
9946 self.start_inline_blame_timer(cx);
9947 } else {
9948 self.show_git_blame_inline = true
9949 }
9950 }
9951
9952 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9953 self.blame.as_ref()
9954 }
9955
9956 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9957 self.show_git_blame_gutter && self.has_blame_entries(cx)
9958 }
9959
9960 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9961 self.show_git_blame_inline
9962 && self.focus_handle.is_focused(cx)
9963 && !self.newest_selection_head_on_empty_line(cx)
9964 && self.has_blame_entries(cx)
9965 }
9966
9967 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9968 self.blame()
9969 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9970 }
9971
9972 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9973 let cursor_anchor = self.selections.newest_anchor().head();
9974
9975 let snapshot = self.buffer.read(cx).snapshot(cx);
9976 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9977
9978 snapshot.line_len(buffer_row) == 0
9979 }
9980
9981 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9982 let (path, selection, repo) = maybe!({
9983 let project_handle = self.project.as_ref()?.clone();
9984 let project = project_handle.read(cx);
9985
9986 let selection = self.selections.newest::<Point>(cx);
9987 let selection_range = selection.range();
9988
9989 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9990 (buffer, selection_range.start.row..selection_range.end.row)
9991 } else {
9992 let buffer_ranges = self
9993 .buffer()
9994 .read(cx)
9995 .range_to_buffer_ranges(selection_range, cx);
9996
9997 let (buffer, range, _) = if selection.reversed {
9998 buffer_ranges.first()
9999 } else {
10000 buffer_ranges.last()
10001 }?;
10002
10003 let snapshot = buffer.read(cx).snapshot();
10004 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10005 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10006 (buffer.clone(), selection)
10007 };
10008
10009 let path = buffer
10010 .read(cx)
10011 .file()?
10012 .as_local()?
10013 .path()
10014 .to_str()?
10015 .to_string();
10016 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10017 Some((path, selection, repo))
10018 })
10019 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10020
10021 const REMOTE_NAME: &str = "origin";
10022 let origin_url = repo
10023 .remote_url(REMOTE_NAME)
10024 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10025 let sha = repo
10026 .head_sha()
10027 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10028
10029 let (provider, remote) =
10030 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10031 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10032
10033 Ok(provider.build_permalink(
10034 remote,
10035 BuildPermalinkParams {
10036 sha: &sha,
10037 path: &path,
10038 selection: Some(selection),
10039 },
10040 ))
10041 }
10042
10043 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10044 let permalink = self.get_permalink_to_line(cx);
10045
10046 match permalink {
10047 Ok(permalink) => {
10048 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10049 }
10050 Err(err) => {
10051 let message = format!("Failed to copy permalink: {err}");
10052
10053 Err::<(), anyhow::Error>(err).log_err();
10054
10055 if let Some(workspace) = self.workspace() {
10056 workspace.update(cx, |workspace, cx| {
10057 struct CopyPermalinkToLine;
10058
10059 workspace.show_toast(
10060 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10061 cx,
10062 )
10063 })
10064 }
10065 }
10066 }
10067 }
10068
10069 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10070 let permalink = self.get_permalink_to_line(cx);
10071
10072 match permalink {
10073 Ok(permalink) => {
10074 cx.open_url(permalink.as_ref());
10075 }
10076 Err(err) => {
10077 let message = format!("Failed to open permalink: {err}");
10078
10079 Err::<(), anyhow::Error>(err).log_err();
10080
10081 if let Some(workspace) = self.workspace() {
10082 workspace.update(cx, |workspace, cx| {
10083 struct OpenPermalinkToLine;
10084
10085 workspace.show_toast(
10086 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10087 cx,
10088 )
10089 })
10090 }
10091 }
10092 }
10093 }
10094
10095 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10096 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10097 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10098 pub fn highlight_rows<T: 'static>(
10099 &mut self,
10100 rows: RangeInclusive<Anchor>,
10101 color: Option<Hsla>,
10102 should_autoscroll: bool,
10103 cx: &mut ViewContext<Self>,
10104 ) {
10105 let snapshot = self.buffer().read(cx).snapshot(cx);
10106 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10107 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10108 highlight
10109 .range
10110 .start()
10111 .cmp(&rows.start(), &snapshot)
10112 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10113 });
10114 match (color, existing_highlight_index) {
10115 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10116 ix,
10117 RowHighlight {
10118 index: post_inc(&mut self.highlight_order),
10119 range: rows,
10120 should_autoscroll,
10121 color,
10122 },
10123 ),
10124 (None, Ok(i)) => {
10125 row_highlights.remove(i);
10126 }
10127 }
10128 }
10129
10130 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10131 pub fn clear_row_highlights<T: 'static>(&mut self) {
10132 self.highlighted_rows.remove(&TypeId::of::<T>());
10133 }
10134
10135 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10136 pub fn highlighted_rows<T: 'static>(
10137 &self,
10138 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10139 Some(
10140 self.highlighted_rows
10141 .get(&TypeId::of::<T>())?
10142 .iter()
10143 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10144 )
10145 }
10146
10147 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10148 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10149 /// Allows to ignore certain kinds of highlights.
10150 pub fn highlighted_display_rows(
10151 &mut self,
10152 cx: &mut WindowContext,
10153 ) -> BTreeMap<DisplayRow, Hsla> {
10154 let snapshot = self.snapshot(cx);
10155 let mut used_highlight_orders = HashMap::default();
10156 self.highlighted_rows
10157 .iter()
10158 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10159 .fold(
10160 BTreeMap::<DisplayRow, Hsla>::new(),
10161 |mut unique_rows, highlight| {
10162 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10163 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10164 for row in start_row.0..=end_row.0 {
10165 let used_index =
10166 used_highlight_orders.entry(row).or_insert(highlight.index);
10167 if highlight.index >= *used_index {
10168 *used_index = highlight.index;
10169 match highlight.color {
10170 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10171 None => unique_rows.remove(&DisplayRow(row)),
10172 };
10173 }
10174 }
10175 unique_rows
10176 },
10177 )
10178 }
10179
10180 pub fn highlighted_display_row_for_autoscroll(
10181 &self,
10182 snapshot: &DisplaySnapshot,
10183 ) -> Option<DisplayRow> {
10184 self.highlighted_rows
10185 .values()
10186 .flat_map(|highlighted_rows| highlighted_rows.iter())
10187 .filter_map(|highlight| {
10188 if highlight.color.is_none() || !highlight.should_autoscroll {
10189 return None;
10190 }
10191 Some(highlight.range.start().to_display_point(&snapshot).row())
10192 })
10193 .min()
10194 }
10195
10196 pub fn set_search_within_ranges(
10197 &mut self,
10198 ranges: &[Range<Anchor>],
10199 cx: &mut ViewContext<Self>,
10200 ) {
10201 self.highlight_background::<SearchWithinRange>(
10202 ranges,
10203 |colors| colors.editor_document_highlight_read_background,
10204 cx,
10205 )
10206 }
10207
10208 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10209 self.clear_background_highlights::<SearchWithinRange>(cx);
10210 }
10211
10212 pub fn highlight_background<T: 'static>(
10213 &mut self,
10214 ranges: &[Range<Anchor>],
10215 color_fetcher: fn(&ThemeColors) -> Hsla,
10216 cx: &mut ViewContext<Self>,
10217 ) {
10218 let snapshot = self.snapshot(cx);
10219 // this is to try and catch a panic sooner
10220 for range in ranges {
10221 snapshot
10222 .buffer_snapshot
10223 .summary_for_anchor::<usize>(&range.start);
10224 snapshot
10225 .buffer_snapshot
10226 .summary_for_anchor::<usize>(&range.end);
10227 }
10228
10229 self.background_highlights
10230 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10231 self.scrollbar_marker_state.dirty = true;
10232 cx.notify();
10233 }
10234
10235 pub fn clear_background_highlights<T: 'static>(
10236 &mut self,
10237 cx: &mut ViewContext<Self>,
10238 ) -> Option<BackgroundHighlight> {
10239 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10240 if !text_highlights.1.is_empty() {
10241 self.scrollbar_marker_state.dirty = true;
10242 cx.notify();
10243 }
10244 Some(text_highlights)
10245 }
10246
10247 #[cfg(feature = "test-support")]
10248 pub fn all_text_background_highlights(
10249 &mut self,
10250 cx: &mut ViewContext<Self>,
10251 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10252 let snapshot = self.snapshot(cx);
10253 let buffer = &snapshot.buffer_snapshot;
10254 let start = buffer.anchor_before(0);
10255 let end = buffer.anchor_after(buffer.len());
10256 let theme = cx.theme().colors();
10257 self.background_highlights_in_range(start..end, &snapshot, theme)
10258 }
10259
10260 fn document_highlights_for_position<'a>(
10261 &'a self,
10262 position: Anchor,
10263 buffer: &'a MultiBufferSnapshot,
10264 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10265 let read_highlights = self
10266 .background_highlights
10267 .get(&TypeId::of::<DocumentHighlightRead>())
10268 .map(|h| &h.1);
10269 let write_highlights = self
10270 .background_highlights
10271 .get(&TypeId::of::<DocumentHighlightWrite>())
10272 .map(|h| &h.1);
10273 let left_position = position.bias_left(buffer);
10274 let right_position = position.bias_right(buffer);
10275 read_highlights
10276 .into_iter()
10277 .chain(write_highlights)
10278 .flat_map(move |ranges| {
10279 let start_ix = match ranges.binary_search_by(|probe| {
10280 let cmp = probe.end.cmp(&left_position, buffer);
10281 if cmp.is_ge() {
10282 Ordering::Greater
10283 } else {
10284 Ordering::Less
10285 }
10286 }) {
10287 Ok(i) | Err(i) => i,
10288 };
10289
10290 ranges[start_ix..]
10291 .iter()
10292 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10293 })
10294 }
10295
10296 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10297 self.background_highlights
10298 .get(&TypeId::of::<T>())
10299 .map_or(false, |(_, highlights)| !highlights.is_empty())
10300 }
10301
10302 pub fn background_highlights_in_range(
10303 &self,
10304 search_range: Range<Anchor>,
10305 display_snapshot: &DisplaySnapshot,
10306 theme: &ThemeColors,
10307 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10308 let mut results = Vec::new();
10309 for (color_fetcher, ranges) in self.background_highlights.values() {
10310 let color = color_fetcher(theme);
10311 let start_ix = match ranges.binary_search_by(|probe| {
10312 let cmp = probe
10313 .end
10314 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10315 if cmp.is_gt() {
10316 Ordering::Greater
10317 } else {
10318 Ordering::Less
10319 }
10320 }) {
10321 Ok(i) | Err(i) => i,
10322 };
10323 for range in &ranges[start_ix..] {
10324 if range
10325 .start
10326 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10327 .is_ge()
10328 {
10329 break;
10330 }
10331
10332 let start = range.start.to_display_point(&display_snapshot);
10333 let end = range.end.to_display_point(&display_snapshot);
10334 results.push((start..end, color))
10335 }
10336 }
10337 results
10338 }
10339
10340 pub fn background_highlight_row_ranges<T: 'static>(
10341 &self,
10342 search_range: Range<Anchor>,
10343 display_snapshot: &DisplaySnapshot,
10344 count: usize,
10345 ) -> Vec<RangeInclusive<DisplayPoint>> {
10346 let mut results = Vec::new();
10347 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10348 return vec![];
10349 };
10350
10351 let start_ix = match ranges.binary_search_by(|probe| {
10352 let cmp = probe
10353 .end
10354 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10355 if cmp.is_gt() {
10356 Ordering::Greater
10357 } else {
10358 Ordering::Less
10359 }
10360 }) {
10361 Ok(i) | Err(i) => i,
10362 };
10363 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10364 if let (Some(start_display), Some(end_display)) = (start, end) {
10365 results.push(
10366 start_display.to_display_point(display_snapshot)
10367 ..=end_display.to_display_point(display_snapshot),
10368 );
10369 }
10370 };
10371 let mut start_row: Option<Point> = None;
10372 let mut end_row: Option<Point> = None;
10373 if ranges.len() > count {
10374 return Vec::new();
10375 }
10376 for range in &ranges[start_ix..] {
10377 if range
10378 .start
10379 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10380 .is_ge()
10381 {
10382 break;
10383 }
10384 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10385 if let Some(current_row) = &end_row {
10386 if end.row == current_row.row {
10387 continue;
10388 }
10389 }
10390 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10391 if start_row.is_none() {
10392 assert_eq!(end_row, None);
10393 start_row = Some(start);
10394 end_row = Some(end);
10395 continue;
10396 }
10397 if let Some(current_end) = end_row.as_mut() {
10398 if start.row > current_end.row + 1 {
10399 push_region(start_row, end_row);
10400 start_row = Some(start);
10401 end_row = Some(end);
10402 } else {
10403 // Merge two hunks.
10404 *current_end = end;
10405 }
10406 } else {
10407 unreachable!();
10408 }
10409 }
10410 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10411 push_region(start_row, end_row);
10412 results
10413 }
10414
10415 /// Get the text ranges corresponding to the redaction query
10416 pub fn redacted_ranges(
10417 &self,
10418 search_range: Range<Anchor>,
10419 display_snapshot: &DisplaySnapshot,
10420 cx: &WindowContext,
10421 ) -> Vec<Range<DisplayPoint>> {
10422 display_snapshot
10423 .buffer_snapshot
10424 .redacted_ranges(search_range, |file| {
10425 if let Some(file) = file {
10426 file.is_private()
10427 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10428 } else {
10429 false
10430 }
10431 })
10432 .map(|range| {
10433 range.start.to_display_point(display_snapshot)
10434 ..range.end.to_display_point(display_snapshot)
10435 })
10436 .collect()
10437 }
10438
10439 pub fn highlight_text<T: 'static>(
10440 &mut self,
10441 ranges: Vec<Range<Anchor>>,
10442 style: HighlightStyle,
10443 cx: &mut ViewContext<Self>,
10444 ) {
10445 self.display_map.update(cx, |map, _| {
10446 map.highlight_text(TypeId::of::<T>(), ranges, style)
10447 });
10448 cx.notify();
10449 }
10450
10451 pub(crate) fn highlight_inlays<T: 'static>(
10452 &mut self,
10453 highlights: Vec<InlayHighlight>,
10454 style: HighlightStyle,
10455 cx: &mut ViewContext<Self>,
10456 ) {
10457 self.display_map.update(cx, |map, _| {
10458 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10459 });
10460 cx.notify();
10461 }
10462
10463 pub fn text_highlights<'a, T: 'static>(
10464 &'a self,
10465 cx: &'a AppContext,
10466 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10467 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10468 }
10469
10470 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10471 let cleared = self
10472 .display_map
10473 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10474 if cleared {
10475 cx.notify();
10476 }
10477 }
10478
10479 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10480 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10481 && self.focus_handle.is_focused(cx)
10482 }
10483
10484 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10485 cx.notify();
10486 }
10487
10488 fn on_buffer_event(
10489 &mut self,
10490 multibuffer: Model<MultiBuffer>,
10491 event: &multi_buffer::Event,
10492 cx: &mut ViewContext<Self>,
10493 ) {
10494 match event {
10495 multi_buffer::Event::Edited {
10496 singleton_buffer_edited,
10497 } => {
10498 self.scrollbar_marker_state.dirty = true;
10499 self.active_indent_guides_state.dirty = true;
10500 self.refresh_active_diagnostics(cx);
10501 self.refresh_code_actions(cx);
10502 if self.has_active_inline_completion(cx) {
10503 self.update_visible_inline_completion(cx);
10504 }
10505 cx.emit(EditorEvent::BufferEdited);
10506 cx.emit(SearchEvent::MatchesInvalidated);
10507
10508 if *singleton_buffer_edited {
10509 if let Some(project) = &self.project {
10510 let project = project.read(cx);
10511 let languages_affected = multibuffer
10512 .read(cx)
10513 .all_buffers()
10514 .into_iter()
10515 .filter_map(|buffer| {
10516 let buffer = buffer.read(cx);
10517 let language = buffer.language()?;
10518 if project.is_local()
10519 && project.language_servers_for_buffer(buffer, cx).count() == 0
10520 {
10521 None
10522 } else {
10523 Some(language)
10524 }
10525 })
10526 .cloned()
10527 .collect::<HashSet<_>>();
10528 if !languages_affected.is_empty() {
10529 self.refresh_inlay_hints(
10530 InlayHintRefreshReason::BufferEdited(languages_affected),
10531 cx,
10532 );
10533 }
10534 }
10535 }
10536
10537 let Some(project) = &self.project else { return };
10538 let telemetry = project.read(cx).client().telemetry().clone();
10539 telemetry.log_edit_event("editor");
10540 }
10541 multi_buffer::Event::ExcerptsAdded {
10542 buffer,
10543 predecessor,
10544 excerpts,
10545 } => {
10546 self.tasks_update_task = Some(self.refresh_runnables(cx));
10547 cx.emit(EditorEvent::ExcerptsAdded {
10548 buffer: buffer.clone(),
10549 predecessor: *predecessor,
10550 excerpts: excerpts.clone(),
10551 });
10552 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10553 }
10554 multi_buffer::Event::ExcerptsRemoved { ids } => {
10555 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10556 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10557 }
10558 multi_buffer::Event::Reparsed => {
10559 self.tasks_update_task = Some(self.refresh_runnables(cx));
10560
10561 cx.emit(EditorEvent::Reparsed);
10562 }
10563 multi_buffer::Event::LanguageChanged => {
10564 cx.emit(EditorEvent::Reparsed);
10565 cx.notify();
10566 }
10567 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10568 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10569 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10570 cx.emit(EditorEvent::TitleChanged)
10571 }
10572 multi_buffer::Event::DiffBaseChanged => {
10573 self.scrollbar_marker_state.dirty = true;
10574 cx.emit(EditorEvent::DiffBaseChanged);
10575 cx.notify();
10576 }
10577 multi_buffer::Event::DiffUpdated { buffer } => {
10578 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10579 cx.notify();
10580 }
10581 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10582 multi_buffer::Event::DiagnosticsUpdated => {
10583 self.refresh_active_diagnostics(cx);
10584 self.scrollbar_marker_state.dirty = true;
10585 cx.notify();
10586 }
10587 _ => {}
10588 };
10589 }
10590
10591 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10592 cx.notify();
10593 }
10594
10595 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10596 self.refresh_inline_completion(true, cx);
10597 self.refresh_inlay_hints(
10598 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10599 self.selections.newest_anchor().head(),
10600 &self.buffer.read(cx).snapshot(cx),
10601 cx,
10602 )),
10603 cx,
10604 );
10605 let editor_settings = EditorSettings::get_global(cx);
10606 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10607 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10608 self.current_line_highlight = editor_settings.current_line_highlight;
10609
10610 if self.mode == EditorMode::Full {
10611 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10612 if self.git_blame_inline_enabled != inline_blame_enabled {
10613 self.toggle_git_blame_inline_internal(false, cx);
10614 }
10615 }
10616
10617 cx.notify();
10618 }
10619
10620 pub fn set_searchable(&mut self, searchable: bool) {
10621 self.searchable = searchable;
10622 }
10623
10624 pub fn searchable(&self) -> bool {
10625 self.searchable
10626 }
10627
10628 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10629 self.open_excerpts_common(true, cx)
10630 }
10631
10632 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10633 self.open_excerpts_common(false, cx)
10634 }
10635
10636 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10637 let buffer = self.buffer.read(cx);
10638 if buffer.is_singleton() {
10639 cx.propagate();
10640 return;
10641 }
10642
10643 let Some(workspace) = self.workspace() else {
10644 cx.propagate();
10645 return;
10646 };
10647
10648 let mut new_selections_by_buffer = HashMap::default();
10649 for selection in self.selections.all::<usize>(cx) {
10650 for (buffer, mut range, _) in
10651 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10652 {
10653 if selection.reversed {
10654 mem::swap(&mut range.start, &mut range.end);
10655 }
10656 new_selections_by_buffer
10657 .entry(buffer)
10658 .or_insert(Vec::new())
10659 .push(range)
10660 }
10661 }
10662
10663 // We defer the pane interaction because we ourselves are a workspace item
10664 // and activating a new item causes the pane to call a method on us reentrantly,
10665 // which panics if we're on the stack.
10666 cx.window_context().defer(move |cx| {
10667 workspace.update(cx, |workspace, cx| {
10668 let pane = if split {
10669 workspace.adjacent_pane(cx)
10670 } else {
10671 workspace.active_pane().clone()
10672 };
10673
10674 for (buffer, ranges) in new_selections_by_buffer {
10675 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10676 editor.update(cx, |editor, cx| {
10677 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10678 s.select_ranges(ranges);
10679 });
10680 });
10681 }
10682 })
10683 });
10684 }
10685
10686 fn jump(
10687 &mut self,
10688 path: ProjectPath,
10689 position: Point,
10690 anchor: language::Anchor,
10691 offset_from_top: u32,
10692 cx: &mut ViewContext<Self>,
10693 ) {
10694 let workspace = self.workspace();
10695 cx.spawn(|_, mut cx| async move {
10696 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10697 let editor = workspace.update(&mut cx, |workspace, cx| {
10698 // Reset the preview item id before opening the new item
10699 workspace.active_pane().update(cx, |pane, cx| {
10700 pane.set_preview_item_id(None, cx);
10701 });
10702 workspace.open_path_preview(path, None, true, true, cx)
10703 })?;
10704 let editor = editor
10705 .await?
10706 .downcast::<Editor>()
10707 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10708 .downgrade();
10709 editor.update(&mut cx, |editor, cx| {
10710 let buffer = editor
10711 .buffer()
10712 .read(cx)
10713 .as_singleton()
10714 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10715 let buffer = buffer.read(cx);
10716 let cursor = if buffer.can_resolve(&anchor) {
10717 language::ToPoint::to_point(&anchor, buffer)
10718 } else {
10719 buffer.clip_point(position, Bias::Left)
10720 };
10721
10722 let nav_history = editor.nav_history.take();
10723 editor.change_selections(
10724 Some(Autoscroll::top_relative(offset_from_top as usize)),
10725 cx,
10726 |s| {
10727 s.select_ranges([cursor..cursor]);
10728 },
10729 );
10730 editor.nav_history = nav_history;
10731
10732 anyhow::Ok(())
10733 })??;
10734
10735 anyhow::Ok(())
10736 })
10737 .detach_and_log_err(cx);
10738 }
10739
10740 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10741 let snapshot = self.buffer.read(cx).read(cx);
10742 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10743 Some(
10744 ranges
10745 .iter()
10746 .map(move |range| {
10747 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10748 })
10749 .collect(),
10750 )
10751 }
10752
10753 fn selection_replacement_ranges(
10754 &self,
10755 range: Range<OffsetUtf16>,
10756 cx: &AppContext,
10757 ) -> Vec<Range<OffsetUtf16>> {
10758 let selections = self.selections.all::<OffsetUtf16>(cx);
10759 let newest_selection = selections
10760 .iter()
10761 .max_by_key(|selection| selection.id)
10762 .unwrap();
10763 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10764 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10765 let snapshot = self.buffer.read(cx).read(cx);
10766 selections
10767 .into_iter()
10768 .map(|mut selection| {
10769 selection.start.0 =
10770 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10771 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10772 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10773 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10774 })
10775 .collect()
10776 }
10777
10778 fn report_editor_event(
10779 &self,
10780 operation: &'static str,
10781 file_extension: Option<String>,
10782 cx: &AppContext,
10783 ) {
10784 if cfg!(any(test, feature = "test-support")) {
10785 return;
10786 }
10787
10788 let Some(project) = &self.project else { return };
10789
10790 // If None, we are in a file without an extension
10791 let file = self
10792 .buffer
10793 .read(cx)
10794 .as_singleton()
10795 .and_then(|b| b.read(cx).file());
10796 let file_extension = file_extension.or(file
10797 .as_ref()
10798 .and_then(|file| Path::new(file.file_name(cx)).extension())
10799 .and_then(|e| e.to_str())
10800 .map(|a| a.to_string()));
10801
10802 let vim_mode = cx
10803 .global::<SettingsStore>()
10804 .raw_user_settings()
10805 .get("vim_mode")
10806 == Some(&serde_json::Value::Bool(true));
10807
10808 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10809 == language::language_settings::InlineCompletionProvider::Copilot;
10810 let copilot_enabled_for_language = self
10811 .buffer
10812 .read(cx)
10813 .settings_at(0, cx)
10814 .show_inline_completions;
10815
10816 let telemetry = project.read(cx).client().telemetry().clone();
10817 telemetry.report_editor_event(
10818 file_extension,
10819 vim_mode,
10820 operation,
10821 copilot_enabled,
10822 copilot_enabled_for_language,
10823 )
10824 }
10825
10826 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10827 /// with each line being an array of {text, highlight} objects.
10828 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10829 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10830 return;
10831 };
10832
10833 #[derive(Serialize)]
10834 struct Chunk<'a> {
10835 text: String,
10836 highlight: Option<&'a str>,
10837 }
10838
10839 let snapshot = buffer.read(cx).snapshot();
10840 let range = self
10841 .selected_text_range(cx)
10842 .and_then(|selected_range| {
10843 if selected_range.is_empty() {
10844 None
10845 } else {
10846 Some(selected_range)
10847 }
10848 })
10849 .unwrap_or_else(|| 0..snapshot.len());
10850
10851 let chunks = snapshot.chunks(range, true);
10852 let mut lines = Vec::new();
10853 let mut line: VecDeque<Chunk> = VecDeque::new();
10854
10855 let Some(style) = self.style.as_ref() else {
10856 return;
10857 };
10858
10859 for chunk in chunks {
10860 let highlight = chunk
10861 .syntax_highlight_id
10862 .and_then(|id| id.name(&style.syntax));
10863 let mut chunk_lines = chunk.text.split('\n').peekable();
10864 while let Some(text) = chunk_lines.next() {
10865 let mut merged_with_last_token = false;
10866 if let Some(last_token) = line.back_mut() {
10867 if last_token.highlight == highlight {
10868 last_token.text.push_str(text);
10869 merged_with_last_token = true;
10870 }
10871 }
10872
10873 if !merged_with_last_token {
10874 line.push_back(Chunk {
10875 text: text.into(),
10876 highlight,
10877 });
10878 }
10879
10880 if chunk_lines.peek().is_some() {
10881 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10882 line.pop_front();
10883 }
10884 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10885 line.pop_back();
10886 }
10887
10888 lines.push(mem::take(&mut line));
10889 }
10890 }
10891 }
10892
10893 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10894 return;
10895 };
10896 cx.write_to_clipboard(ClipboardItem::new(lines));
10897 }
10898
10899 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10900 &self.inlay_hint_cache
10901 }
10902
10903 pub fn replay_insert_event(
10904 &mut self,
10905 text: &str,
10906 relative_utf16_range: Option<Range<isize>>,
10907 cx: &mut ViewContext<Self>,
10908 ) {
10909 if !self.input_enabled {
10910 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10911 return;
10912 }
10913 if let Some(relative_utf16_range) = relative_utf16_range {
10914 let selections = self.selections.all::<OffsetUtf16>(cx);
10915 self.change_selections(None, cx, |s| {
10916 let new_ranges = selections.into_iter().map(|range| {
10917 let start = OffsetUtf16(
10918 range
10919 .head()
10920 .0
10921 .saturating_add_signed(relative_utf16_range.start),
10922 );
10923 let end = OffsetUtf16(
10924 range
10925 .head()
10926 .0
10927 .saturating_add_signed(relative_utf16_range.end),
10928 );
10929 start..end
10930 });
10931 s.select_ranges(new_ranges);
10932 });
10933 }
10934
10935 self.handle_input(text, cx);
10936 }
10937
10938 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10939 let Some(project) = self.project.as_ref() else {
10940 return false;
10941 };
10942 let project = project.read(cx);
10943
10944 let mut supports = false;
10945 self.buffer().read(cx).for_each_buffer(|buffer| {
10946 if !supports {
10947 supports = project
10948 .language_servers_for_buffer(buffer.read(cx), cx)
10949 .any(
10950 |(_, server)| match server.capabilities().inlay_hint_provider {
10951 Some(lsp::OneOf::Left(enabled)) => enabled,
10952 Some(lsp::OneOf::Right(_)) => true,
10953 None => false,
10954 },
10955 )
10956 }
10957 });
10958 supports
10959 }
10960
10961 pub fn focus(&self, cx: &mut WindowContext) {
10962 cx.focus(&self.focus_handle)
10963 }
10964
10965 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10966 self.focus_handle.is_focused(cx)
10967 }
10968
10969 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10970 cx.emit(EditorEvent::Focused);
10971 if let Some(rename) = self.pending_rename.as_ref() {
10972 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10973 cx.focus(&rename_editor_focus_handle);
10974 } else {
10975 if let Some(blame) = self.blame.as_ref() {
10976 blame.update(cx, GitBlame::focus)
10977 }
10978
10979 self.blink_manager.update(cx, BlinkManager::enable);
10980 self.show_cursor_names(cx);
10981 self.buffer.update(cx, |buffer, cx| {
10982 buffer.finalize_last_transaction(cx);
10983 if self.leader_peer_id.is_none() {
10984 buffer.set_active_selections(
10985 &self.selections.disjoint_anchors(),
10986 self.selections.line_mode,
10987 self.cursor_shape,
10988 cx,
10989 );
10990 }
10991 });
10992 }
10993 }
10994
10995 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10996 self.blink_manager.update(cx, BlinkManager::disable);
10997 self.buffer
10998 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10999
11000 if let Some(blame) = self.blame.as_ref() {
11001 blame.update(cx, GitBlame::blur)
11002 }
11003 self.hide_context_menu(cx);
11004 hide_hover(self, cx);
11005 cx.emit(EditorEvent::Blurred);
11006 cx.notify();
11007 }
11008
11009 pub fn register_action<A: Action>(
11010 &mut self,
11011 listener: impl Fn(&A, &mut WindowContext) + 'static,
11012 ) -> &mut Self {
11013 let listener = Arc::new(listener);
11014
11015 self.editor_actions.push(Box::new(move |cx| {
11016 let _view = cx.view().clone();
11017 let cx = cx.window_context();
11018 let listener = listener.clone();
11019 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11020 let action = action.downcast_ref().unwrap();
11021 if phase == DispatchPhase::Bubble {
11022 listener(action, cx)
11023 }
11024 })
11025 }));
11026 self
11027 }
11028}
11029
11030fn hunks_for_selections(
11031 multi_buffer_snapshot: &MultiBufferSnapshot,
11032 selections: &[Selection<Anchor>],
11033) -> Vec<DiffHunk<MultiBufferRow>> {
11034 let mut hunks = Vec::with_capacity(selections.len());
11035 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11036 HashMap::default();
11037 let buffer_rows_for_selections = selections.iter().map(|selection| {
11038 let head = selection.head();
11039 let tail = selection.tail();
11040 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11041 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11042 if start > end {
11043 end..start
11044 } else {
11045 start..end
11046 }
11047 });
11048
11049 for selected_multi_buffer_rows in buffer_rows_for_selections {
11050 let query_rows =
11051 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11052 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11053 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11054 // when the caret is just above or just below the deleted hunk.
11055 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11056 let related_to_selection = if allow_adjacent {
11057 hunk.associated_range.overlaps(&query_rows)
11058 || hunk.associated_range.start == query_rows.end
11059 || hunk.associated_range.end == query_rows.start
11060 } else {
11061 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11062 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11063 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11064 || selected_multi_buffer_rows.end == hunk.associated_range.start
11065 };
11066 if related_to_selection {
11067 if !processed_buffer_rows
11068 .entry(hunk.buffer_id)
11069 .or_default()
11070 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11071 {
11072 continue;
11073 }
11074 hunks.push(hunk);
11075 }
11076 }
11077 }
11078
11079 hunks
11080}
11081
11082pub trait CollaborationHub {
11083 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11084 fn user_participant_indices<'a>(
11085 &self,
11086 cx: &'a AppContext,
11087 ) -> &'a HashMap<u64, ParticipantIndex>;
11088 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11089}
11090
11091impl CollaborationHub for Model<Project> {
11092 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11093 self.read(cx).collaborators()
11094 }
11095
11096 fn user_participant_indices<'a>(
11097 &self,
11098 cx: &'a AppContext,
11099 ) -> &'a HashMap<u64, ParticipantIndex> {
11100 self.read(cx).user_store().read(cx).participant_indices()
11101 }
11102
11103 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11104 let this = self.read(cx);
11105 let user_ids = this.collaborators().values().map(|c| c.user_id);
11106 this.user_store().read_with(cx, |user_store, cx| {
11107 user_store.participant_names(user_ids, cx)
11108 })
11109 }
11110}
11111
11112pub trait CompletionProvider {
11113 fn completions(
11114 &self,
11115 buffer: &Model<Buffer>,
11116 buffer_position: text::Anchor,
11117 cx: &mut ViewContext<Editor>,
11118 ) -> Task<Result<Vec<Completion>>>;
11119
11120 fn resolve_completions(
11121 &self,
11122 buffer: Model<Buffer>,
11123 completion_indices: Vec<usize>,
11124 completions: Arc<RwLock<Box<[Completion]>>>,
11125 cx: &mut ViewContext<Editor>,
11126 ) -> Task<Result<bool>>;
11127
11128 fn apply_additional_edits_for_completion(
11129 &self,
11130 buffer: Model<Buffer>,
11131 completion: Completion,
11132 push_to_history: bool,
11133 cx: &mut ViewContext<Editor>,
11134 ) -> Task<Result<Option<language::Transaction>>>;
11135
11136 fn is_completion_trigger(
11137 &self,
11138 buffer: &Model<Buffer>,
11139 position: language::Anchor,
11140 text: &str,
11141 trigger_in_words: bool,
11142 cx: &mut ViewContext<Editor>,
11143 ) -> bool;
11144}
11145
11146impl CompletionProvider for Model<Project> {
11147 fn completions(
11148 &self,
11149 buffer: &Model<Buffer>,
11150 buffer_position: text::Anchor,
11151 cx: &mut ViewContext<Editor>,
11152 ) -> Task<Result<Vec<Completion>>> {
11153 self.update(cx, |project, cx| {
11154 project.completions(&buffer, buffer_position, cx)
11155 })
11156 }
11157
11158 fn resolve_completions(
11159 &self,
11160 buffer: Model<Buffer>,
11161 completion_indices: Vec<usize>,
11162 completions: Arc<RwLock<Box<[Completion]>>>,
11163 cx: &mut ViewContext<Editor>,
11164 ) -> Task<Result<bool>> {
11165 self.update(cx, |project, cx| {
11166 project.resolve_completions(buffer, completion_indices, completions, cx)
11167 })
11168 }
11169
11170 fn apply_additional_edits_for_completion(
11171 &self,
11172 buffer: Model<Buffer>,
11173 completion: Completion,
11174 push_to_history: bool,
11175 cx: &mut ViewContext<Editor>,
11176 ) -> Task<Result<Option<language::Transaction>>> {
11177 self.update(cx, |project, cx| {
11178 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11179 })
11180 }
11181
11182 fn is_completion_trigger(
11183 &self,
11184 buffer: &Model<Buffer>,
11185 position: language::Anchor,
11186 text: &str,
11187 trigger_in_words: bool,
11188 cx: &mut ViewContext<Editor>,
11189 ) -> bool {
11190 if !EditorSettings::get_global(cx).show_completions_on_input {
11191 return false;
11192 }
11193
11194 let mut chars = text.chars();
11195 let char = if let Some(char) = chars.next() {
11196 char
11197 } else {
11198 return false;
11199 };
11200 if chars.next().is_some() {
11201 return false;
11202 }
11203
11204 let buffer = buffer.read(cx);
11205 let scope = buffer.snapshot().language_scope_at(position);
11206 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11207 return true;
11208 }
11209
11210 buffer
11211 .completion_triggers()
11212 .iter()
11213 .any(|string| string == text)
11214 }
11215}
11216
11217fn inlay_hint_settings(
11218 location: Anchor,
11219 snapshot: &MultiBufferSnapshot,
11220 cx: &mut ViewContext<'_, Editor>,
11221) -> InlayHintSettings {
11222 let file = snapshot.file_at(location);
11223 let language = snapshot.language_at(location);
11224 let settings = all_language_settings(file, cx);
11225 settings
11226 .language(language.map(|l| l.name()).as_deref())
11227 .inlay_hints
11228}
11229
11230fn consume_contiguous_rows(
11231 contiguous_row_selections: &mut Vec<Selection<Point>>,
11232 selection: &Selection<Point>,
11233 display_map: &DisplaySnapshot,
11234 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11235) -> (MultiBufferRow, MultiBufferRow) {
11236 contiguous_row_selections.push(selection.clone());
11237 let start_row = MultiBufferRow(selection.start.row);
11238 let mut end_row = ending_row(selection, display_map);
11239
11240 while let Some(next_selection) = selections.peek() {
11241 if next_selection.start.row <= end_row.0 {
11242 end_row = ending_row(next_selection, display_map);
11243 contiguous_row_selections.push(selections.next().unwrap().clone());
11244 } else {
11245 break;
11246 }
11247 }
11248 (start_row, end_row)
11249}
11250
11251fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11252 if next_selection.end.column > 0 || next_selection.is_empty() {
11253 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11254 } else {
11255 MultiBufferRow(next_selection.end.row)
11256 }
11257}
11258
11259impl EditorSnapshot {
11260 pub fn remote_selections_in_range<'a>(
11261 &'a self,
11262 range: &'a Range<Anchor>,
11263 collaboration_hub: &dyn CollaborationHub,
11264 cx: &'a AppContext,
11265 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11266 let participant_names = collaboration_hub.user_names(cx);
11267 let participant_indices = collaboration_hub.user_participant_indices(cx);
11268 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11269 let collaborators_by_replica_id = collaborators_by_peer_id
11270 .iter()
11271 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11272 .collect::<HashMap<_, _>>();
11273 self.buffer_snapshot
11274 .remote_selections_in_range(range)
11275 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11276 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11277 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11278 let user_name = participant_names.get(&collaborator.user_id).cloned();
11279 Some(RemoteSelection {
11280 replica_id,
11281 selection,
11282 cursor_shape,
11283 line_mode,
11284 participant_index,
11285 peer_id: collaborator.peer_id,
11286 user_name,
11287 })
11288 })
11289 }
11290
11291 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11292 self.display_snapshot.buffer_snapshot.language_at(position)
11293 }
11294
11295 pub fn is_focused(&self) -> bool {
11296 self.is_focused
11297 }
11298
11299 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11300 self.placeholder_text.as_ref()
11301 }
11302
11303 pub fn scroll_position(&self) -> gpui::Point<f32> {
11304 self.scroll_anchor.scroll_position(&self.display_snapshot)
11305 }
11306
11307 pub fn gutter_dimensions(
11308 &self,
11309 font_id: FontId,
11310 font_size: Pixels,
11311 em_width: Pixels,
11312 max_line_number_width: Pixels,
11313 cx: &AppContext,
11314 ) -> GutterDimensions {
11315 if !self.show_gutter {
11316 return GutterDimensions::default();
11317 }
11318 let descent = cx.text_system().descent(font_id, font_size);
11319
11320 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11321 matches!(
11322 ProjectSettings::get_global(cx).git.git_gutter,
11323 Some(GitGutterSetting::TrackedFiles)
11324 )
11325 });
11326 let gutter_settings = EditorSettings::get_global(cx).gutter;
11327 let show_line_numbers = self
11328 .show_line_numbers
11329 .unwrap_or_else(|| gutter_settings.line_numbers);
11330 let line_gutter_width = if show_line_numbers {
11331 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11332 let min_width_for_number_on_gutter = em_width * 4.0;
11333 max_line_number_width.max(min_width_for_number_on_gutter)
11334 } else {
11335 0.0.into()
11336 };
11337
11338 let show_code_actions = self
11339 .show_code_actions
11340 .unwrap_or_else(|| gutter_settings.code_actions);
11341
11342 let git_blame_entries_width = self
11343 .render_git_blame_gutter
11344 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11345
11346 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11347 left_padding += if show_code_actions {
11348 em_width * 3.0
11349 } else if show_git_gutter && show_line_numbers {
11350 em_width * 2.0
11351 } else if show_git_gutter || show_line_numbers {
11352 em_width
11353 } else {
11354 px(0.)
11355 };
11356
11357 let right_padding = if gutter_settings.folds && show_line_numbers {
11358 em_width * 4.0
11359 } else if gutter_settings.folds {
11360 em_width * 3.0
11361 } else if show_line_numbers {
11362 em_width
11363 } else {
11364 px(0.)
11365 };
11366
11367 GutterDimensions {
11368 left_padding,
11369 right_padding,
11370 width: line_gutter_width + left_padding + right_padding,
11371 margin: -descent,
11372 git_blame_entries_width,
11373 }
11374 }
11375
11376 pub fn render_fold_toggle(
11377 &self,
11378 buffer_row: MultiBufferRow,
11379 row_contains_cursor: bool,
11380 editor: View<Editor>,
11381 cx: &mut WindowContext,
11382 ) -> Option<AnyElement> {
11383 let folded = self.is_line_folded(buffer_row);
11384
11385 if let Some(flap) = self
11386 .flap_snapshot
11387 .query_row(buffer_row, &self.buffer_snapshot)
11388 {
11389 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11390 if folded {
11391 editor.update(cx, |editor, cx| {
11392 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11393 });
11394 } else {
11395 editor.update(cx, |editor, cx| {
11396 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11397 });
11398 }
11399 });
11400
11401 Some((flap.render_toggle)(
11402 buffer_row,
11403 folded,
11404 toggle_callback,
11405 cx,
11406 ))
11407 } else if folded
11408 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11409 {
11410 Some(
11411 IconButton::new(
11412 ("indent-fold-indicator", buffer_row.0),
11413 ui::IconName::ChevronDown,
11414 )
11415 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
11416 if folded {
11417 this.unfold_at(&UnfoldAt { buffer_row }, cx);
11418 } else {
11419 this.fold_at(&FoldAt { buffer_row }, cx);
11420 }
11421 }))
11422 .icon_color(ui::Color::Muted)
11423 .icon_size(ui::IconSize::Small)
11424 .selected(folded)
11425 .selected_icon(ui::IconName::ChevronRight)
11426 .size(ui::ButtonSize::None)
11427 .into_any_element(),
11428 )
11429 } else {
11430 None
11431 }
11432 }
11433
11434 pub fn render_flap_trailer(
11435 &self,
11436 buffer_row: MultiBufferRow,
11437 cx: &mut WindowContext,
11438 ) -> Option<AnyElement> {
11439 let folded = self.is_line_folded(buffer_row);
11440 let flap = self
11441 .flap_snapshot
11442 .query_row(buffer_row, &self.buffer_snapshot)?;
11443 Some((flap.render_trailer)(buffer_row, folded, cx))
11444 }
11445}
11446
11447impl Deref for EditorSnapshot {
11448 type Target = DisplaySnapshot;
11449
11450 fn deref(&self) -> &Self::Target {
11451 &self.display_snapshot
11452 }
11453}
11454
11455#[derive(Clone, Debug, PartialEq, Eq)]
11456pub enum EditorEvent {
11457 InputIgnored {
11458 text: Arc<str>,
11459 },
11460 InputHandled {
11461 utf16_range_to_replace: Option<Range<isize>>,
11462 text: Arc<str>,
11463 },
11464 ExcerptsAdded {
11465 buffer: Model<Buffer>,
11466 predecessor: ExcerptId,
11467 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11468 },
11469 ExcerptsRemoved {
11470 ids: Vec<ExcerptId>,
11471 },
11472 BufferEdited,
11473 Edited,
11474 Reparsed,
11475 Focused,
11476 Blurred,
11477 DirtyChanged,
11478 Saved,
11479 TitleChanged,
11480 DiffBaseChanged,
11481 SelectionsChanged {
11482 local: bool,
11483 },
11484 ScrollPositionChanged {
11485 local: bool,
11486 autoscroll: bool,
11487 },
11488 Closed,
11489 TransactionUndone {
11490 transaction_id: clock::Lamport,
11491 },
11492 TransactionBegun {
11493 transaction_id: clock::Lamport,
11494 },
11495}
11496
11497impl EventEmitter<EditorEvent> for Editor {}
11498
11499impl FocusableView for Editor {
11500 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11501 self.focus_handle.clone()
11502 }
11503}
11504
11505impl Render for Editor {
11506 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11507 let settings = ThemeSettings::get_global(cx);
11508
11509 let text_style = match self.mode {
11510 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11511 color: cx.theme().colors().editor_foreground,
11512 font_family: settings.ui_font.family.clone(),
11513 font_features: settings.ui_font.features.clone(),
11514 font_size: rems(0.875).into(),
11515 font_weight: settings.ui_font.weight,
11516 font_style: FontStyle::Normal,
11517 line_height: relative(settings.buffer_line_height.value()),
11518 background_color: None,
11519 underline: None,
11520 strikethrough: None,
11521 white_space: WhiteSpace::Normal,
11522 },
11523 EditorMode::Full => TextStyle {
11524 color: cx.theme().colors().editor_foreground,
11525 font_family: settings.buffer_font.family.clone(),
11526 font_features: settings.buffer_font.features.clone(),
11527 font_size: settings.buffer_font_size(cx).into(),
11528 font_weight: settings.buffer_font.weight,
11529 font_style: FontStyle::Normal,
11530 line_height: relative(settings.buffer_line_height.value()),
11531 background_color: None,
11532 underline: None,
11533 strikethrough: None,
11534 white_space: WhiteSpace::Normal,
11535 },
11536 };
11537
11538 let background = match self.mode {
11539 EditorMode::SingleLine => cx.theme().system().transparent,
11540 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11541 EditorMode::Full => cx.theme().colors().editor_background,
11542 };
11543
11544 EditorElement::new(
11545 cx.view(),
11546 EditorStyle {
11547 background,
11548 local_player: cx.theme().players().local(),
11549 text: text_style,
11550 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11551 syntax: cx.theme().syntax().clone(),
11552 status: cx.theme().status().clone(),
11553 inlay_hints_style: HighlightStyle {
11554 color: Some(cx.theme().status().hint),
11555 ..HighlightStyle::default()
11556 },
11557 suggestions_style: HighlightStyle {
11558 color: Some(cx.theme().status().predictive),
11559 ..HighlightStyle::default()
11560 },
11561 },
11562 )
11563 }
11564}
11565
11566impl ViewInputHandler for Editor {
11567 fn text_for_range(
11568 &mut self,
11569 range_utf16: Range<usize>,
11570 cx: &mut ViewContext<Self>,
11571 ) -> Option<String> {
11572 Some(
11573 self.buffer
11574 .read(cx)
11575 .read(cx)
11576 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11577 .collect(),
11578 )
11579 }
11580
11581 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11582 // Prevent the IME menu from appearing when holding down an alphabetic key
11583 // while input is disabled.
11584 if !self.input_enabled {
11585 return None;
11586 }
11587
11588 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11589 Some(range.start.0..range.end.0)
11590 }
11591
11592 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11593 let snapshot = self.buffer.read(cx).read(cx);
11594 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11595 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11596 }
11597
11598 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11599 self.clear_highlights::<InputComposition>(cx);
11600 self.ime_transaction.take();
11601 }
11602
11603 fn replace_text_in_range(
11604 &mut self,
11605 range_utf16: Option<Range<usize>>,
11606 text: &str,
11607 cx: &mut ViewContext<Self>,
11608 ) {
11609 if !self.input_enabled {
11610 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11611 return;
11612 }
11613
11614 self.transact(cx, |this, cx| {
11615 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11616 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11617 Some(this.selection_replacement_ranges(range_utf16, cx))
11618 } else {
11619 this.marked_text_ranges(cx)
11620 };
11621
11622 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11623 let newest_selection_id = this.selections.newest_anchor().id;
11624 this.selections
11625 .all::<OffsetUtf16>(cx)
11626 .iter()
11627 .zip(ranges_to_replace.iter())
11628 .find_map(|(selection, range)| {
11629 if selection.id == newest_selection_id {
11630 Some(
11631 (range.start.0 as isize - selection.head().0 as isize)
11632 ..(range.end.0 as isize - selection.head().0 as isize),
11633 )
11634 } else {
11635 None
11636 }
11637 })
11638 });
11639
11640 cx.emit(EditorEvent::InputHandled {
11641 utf16_range_to_replace: range_to_replace,
11642 text: text.into(),
11643 });
11644
11645 if let Some(new_selected_ranges) = new_selected_ranges {
11646 this.change_selections(None, cx, |selections| {
11647 selections.select_ranges(new_selected_ranges)
11648 });
11649 this.backspace(&Default::default(), cx);
11650 }
11651
11652 this.handle_input(text, cx);
11653 });
11654
11655 if let Some(transaction) = self.ime_transaction {
11656 self.buffer.update(cx, |buffer, cx| {
11657 buffer.group_until_transaction(transaction, cx);
11658 });
11659 }
11660
11661 self.unmark_text(cx);
11662 }
11663
11664 fn replace_and_mark_text_in_range(
11665 &mut self,
11666 range_utf16: Option<Range<usize>>,
11667 text: &str,
11668 new_selected_range_utf16: Option<Range<usize>>,
11669 cx: &mut ViewContext<Self>,
11670 ) {
11671 if !self.input_enabled {
11672 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11673 return;
11674 }
11675
11676 let transaction = self.transact(cx, |this, cx| {
11677 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11678 let snapshot = this.buffer.read(cx).read(cx);
11679 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11680 for marked_range in &mut marked_ranges {
11681 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11682 marked_range.start.0 += relative_range_utf16.start;
11683 marked_range.start =
11684 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11685 marked_range.end =
11686 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11687 }
11688 }
11689 Some(marked_ranges)
11690 } else if let Some(range_utf16) = range_utf16 {
11691 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11692 Some(this.selection_replacement_ranges(range_utf16, cx))
11693 } else {
11694 None
11695 };
11696
11697 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11698 let newest_selection_id = this.selections.newest_anchor().id;
11699 this.selections
11700 .all::<OffsetUtf16>(cx)
11701 .iter()
11702 .zip(ranges_to_replace.iter())
11703 .find_map(|(selection, range)| {
11704 if selection.id == newest_selection_id {
11705 Some(
11706 (range.start.0 as isize - selection.head().0 as isize)
11707 ..(range.end.0 as isize - selection.head().0 as isize),
11708 )
11709 } else {
11710 None
11711 }
11712 })
11713 });
11714
11715 cx.emit(EditorEvent::InputHandled {
11716 utf16_range_to_replace: range_to_replace,
11717 text: text.into(),
11718 });
11719
11720 if let Some(ranges) = ranges_to_replace {
11721 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11722 }
11723
11724 let marked_ranges = {
11725 let snapshot = this.buffer.read(cx).read(cx);
11726 this.selections
11727 .disjoint_anchors()
11728 .iter()
11729 .map(|selection| {
11730 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11731 })
11732 .collect::<Vec<_>>()
11733 };
11734
11735 if text.is_empty() {
11736 this.unmark_text(cx);
11737 } else {
11738 this.highlight_text::<InputComposition>(
11739 marked_ranges.clone(),
11740 HighlightStyle {
11741 underline: Some(UnderlineStyle {
11742 thickness: px(1.),
11743 color: None,
11744 wavy: false,
11745 }),
11746 ..Default::default()
11747 },
11748 cx,
11749 );
11750 }
11751
11752 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11753 let use_autoclose = this.use_autoclose;
11754 this.set_use_autoclose(false);
11755 this.handle_input(text, cx);
11756 this.set_use_autoclose(use_autoclose);
11757
11758 if let Some(new_selected_range) = new_selected_range_utf16 {
11759 let snapshot = this.buffer.read(cx).read(cx);
11760 let new_selected_ranges = marked_ranges
11761 .into_iter()
11762 .map(|marked_range| {
11763 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11764 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11765 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11766 snapshot.clip_offset_utf16(new_start, Bias::Left)
11767 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11768 })
11769 .collect::<Vec<_>>();
11770
11771 drop(snapshot);
11772 this.change_selections(None, cx, |selections| {
11773 selections.select_ranges(new_selected_ranges)
11774 });
11775 }
11776 });
11777
11778 self.ime_transaction = self.ime_transaction.or(transaction);
11779 if let Some(transaction) = self.ime_transaction {
11780 self.buffer.update(cx, |buffer, cx| {
11781 buffer.group_until_transaction(transaction, cx);
11782 });
11783 }
11784
11785 if self.text_highlights::<InputComposition>(cx).is_none() {
11786 self.ime_transaction.take();
11787 }
11788 }
11789
11790 fn bounds_for_range(
11791 &mut self,
11792 range_utf16: Range<usize>,
11793 element_bounds: gpui::Bounds<Pixels>,
11794 cx: &mut ViewContext<Self>,
11795 ) -> Option<gpui::Bounds<Pixels>> {
11796 let text_layout_details = self.text_layout_details(cx);
11797 let style = &text_layout_details.editor_style;
11798 let font_id = cx.text_system().resolve_font(&style.text.font());
11799 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11800 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11801 let em_width = cx
11802 .text_system()
11803 .typographic_bounds(font_id, font_size, 'm')
11804 .unwrap()
11805 .size
11806 .width;
11807
11808 let snapshot = self.snapshot(cx);
11809 let scroll_position = snapshot.scroll_position();
11810 let scroll_left = scroll_position.x * em_width;
11811
11812 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11813 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11814 + self.gutter_dimensions.width;
11815 let y = line_height * (start.row().as_f32() - scroll_position.y);
11816
11817 Some(Bounds {
11818 origin: element_bounds.origin + point(x, y),
11819 size: size(em_width, line_height),
11820 })
11821 }
11822}
11823
11824trait SelectionExt {
11825 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11826 fn spanned_rows(
11827 &self,
11828 include_end_if_at_line_start: bool,
11829 map: &DisplaySnapshot,
11830 ) -> Range<MultiBufferRow>;
11831}
11832
11833impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11834 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11835 let start = self
11836 .start
11837 .to_point(&map.buffer_snapshot)
11838 .to_display_point(map);
11839 let end = self
11840 .end
11841 .to_point(&map.buffer_snapshot)
11842 .to_display_point(map);
11843 if self.reversed {
11844 end..start
11845 } else {
11846 start..end
11847 }
11848 }
11849
11850 fn spanned_rows(
11851 &self,
11852 include_end_if_at_line_start: bool,
11853 map: &DisplaySnapshot,
11854 ) -> Range<MultiBufferRow> {
11855 let start = self.start.to_point(&map.buffer_snapshot);
11856 let mut end = self.end.to_point(&map.buffer_snapshot);
11857 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11858 end.row -= 1;
11859 }
11860
11861 let buffer_start = map.prev_line_boundary(start).0;
11862 let buffer_end = map.next_line_boundary(end).0;
11863 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11864 }
11865}
11866
11867impl<T: InvalidationRegion> InvalidationStack<T> {
11868 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11869 where
11870 S: Clone + ToOffset,
11871 {
11872 while let Some(region) = self.last() {
11873 let all_selections_inside_invalidation_ranges =
11874 if selections.len() == region.ranges().len() {
11875 selections
11876 .iter()
11877 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11878 .all(|(selection, invalidation_range)| {
11879 let head = selection.head().to_offset(buffer);
11880 invalidation_range.start <= head && invalidation_range.end >= head
11881 })
11882 } else {
11883 false
11884 };
11885
11886 if all_selections_inside_invalidation_ranges {
11887 break;
11888 } else {
11889 self.pop();
11890 }
11891 }
11892 }
11893}
11894
11895impl<T> Default for InvalidationStack<T> {
11896 fn default() -> Self {
11897 Self(Default::default())
11898 }
11899}
11900
11901impl<T> Deref for InvalidationStack<T> {
11902 type Target = Vec<T>;
11903
11904 fn deref(&self) -> &Self::Target {
11905 &self.0
11906 }
11907}
11908
11909impl<T> DerefMut for InvalidationStack<T> {
11910 fn deref_mut(&mut self) -> &mut Self::Target {
11911 &mut self.0
11912 }
11913}
11914
11915impl InvalidationRegion for SnippetState {
11916 fn ranges(&self) -> &[Range<Anchor>] {
11917 &self.ranges[self.active_index]
11918 }
11919}
11920
11921pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11922 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11923
11924 Box::new(move |cx: &mut BlockContext| {
11925 let group_id: SharedString = cx.block_id.to_string().into();
11926
11927 let mut text_style = cx.text_style().clone();
11928 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11929 let theme_settings = ThemeSettings::get_global(cx);
11930 text_style.font_family = theme_settings.buffer_font.family.clone();
11931 text_style.font_style = theme_settings.buffer_font.style;
11932 text_style.font_features = theme_settings.buffer_font.features.clone();
11933 text_style.font_weight = theme_settings.buffer_font.weight;
11934
11935 let multi_line_diagnostic = diagnostic.message.contains('\n');
11936
11937 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11938 if multi_line_diagnostic {
11939 v_flex()
11940 } else {
11941 h_flex()
11942 }
11943 .children(diagnostic.is_primary.then(|| {
11944 IconButton::new(("close-block", block_id), IconName::XCircle)
11945 .icon_color(Color::Muted)
11946 .size(ButtonSize::Compact)
11947 .style(ButtonStyle::Transparent)
11948 .visible_on_hover(group_id.clone())
11949 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11950 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11951 }))
11952 .child(
11953 IconButton::new(("copy-block", block_id), IconName::Copy)
11954 .icon_color(Color::Muted)
11955 .size(ButtonSize::Compact)
11956 .style(ButtonStyle::Transparent)
11957 .visible_on_hover(group_id.clone())
11958 .on_click({
11959 let message = diagnostic.message.clone();
11960 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11961 })
11962 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11963 )
11964 };
11965
11966 let icon_size = buttons(&diagnostic, cx.block_id)
11967 .into_any_element()
11968 .layout_as_root(AvailableSpace::min_size(), cx);
11969
11970 h_flex()
11971 .id(cx.block_id)
11972 .group(group_id.clone())
11973 .relative()
11974 .size_full()
11975 .pl(cx.gutter_dimensions.width)
11976 .w(cx.max_width + cx.gutter_dimensions.width)
11977 .child(
11978 div()
11979 .flex()
11980 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11981 .flex_shrink(),
11982 )
11983 .child(buttons(&diagnostic, cx.block_id))
11984 .child(div().flex().flex_shrink_0().child(
11985 StyledText::new(text_without_backticks.clone()).with_highlights(
11986 &text_style,
11987 code_ranges.iter().map(|range| {
11988 (
11989 range.clone(),
11990 HighlightStyle {
11991 font_weight: Some(FontWeight::BOLD),
11992 ..Default::default()
11993 },
11994 )
11995 }),
11996 ),
11997 ))
11998 .into_any_element()
11999 })
12000}
12001
12002pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
12003 let mut text_without_backticks = String::new();
12004 let mut code_ranges = Vec::new();
12005
12006 if let Some(source) = &diagnostic.source {
12007 text_without_backticks.push_str(&source);
12008 code_ranges.push(0..source.len());
12009 text_without_backticks.push_str(": ");
12010 }
12011
12012 let mut prev_offset = 0;
12013 let mut in_code_block = false;
12014 for (ix, _) in diagnostic
12015 .message
12016 .match_indices('`')
12017 .chain([(diagnostic.message.len(), "")])
12018 {
12019 let prev_len = text_without_backticks.len();
12020 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
12021 prev_offset = ix + 1;
12022 if in_code_block {
12023 code_ranges.push(prev_len..text_without_backticks.len());
12024 in_code_block = false;
12025 } else {
12026 in_code_block = true;
12027 }
12028 }
12029
12030 (text_without_backticks.into(), code_ranges)
12031}
12032
12033fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
12034 match (severity, valid) {
12035 (DiagnosticSeverity::ERROR, true) => colors.error,
12036 (DiagnosticSeverity::ERROR, false) => colors.error,
12037 (DiagnosticSeverity::WARNING, true) => colors.warning,
12038 (DiagnosticSeverity::WARNING, false) => colors.warning,
12039 (DiagnosticSeverity::INFORMATION, true) => colors.info,
12040 (DiagnosticSeverity::INFORMATION, false) => colors.info,
12041 (DiagnosticSeverity::HINT, true) => colors.info,
12042 (DiagnosticSeverity::HINT, false) => colors.info,
12043 _ => colors.ignored,
12044 }
12045}
12046
12047pub fn styled_runs_for_code_label<'a>(
12048 label: &'a CodeLabel,
12049 syntax_theme: &'a theme::SyntaxTheme,
12050) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12051 let fade_out = HighlightStyle {
12052 fade_out: Some(0.35),
12053 ..Default::default()
12054 };
12055
12056 let mut prev_end = label.filter_range.end;
12057 label
12058 .runs
12059 .iter()
12060 .enumerate()
12061 .flat_map(move |(ix, (range, highlight_id))| {
12062 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12063 style
12064 } else {
12065 return Default::default();
12066 };
12067 let mut muted_style = style;
12068 muted_style.highlight(fade_out);
12069
12070 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12071 if range.start >= label.filter_range.end {
12072 if range.start > prev_end {
12073 runs.push((prev_end..range.start, fade_out));
12074 }
12075 runs.push((range.clone(), muted_style));
12076 } else if range.end <= label.filter_range.end {
12077 runs.push((range.clone(), style));
12078 } else {
12079 runs.push((range.start..label.filter_range.end, style));
12080 runs.push((label.filter_range.end..range.end, muted_style));
12081 }
12082 prev_end = cmp::max(prev_end, range.end);
12083
12084 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12085 runs.push((prev_end..label.text.len(), fade_out));
12086 }
12087
12088 runs
12089 })
12090}
12091
12092pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12093 let mut prev_index = 0;
12094 let mut prev_codepoint: Option<char> = None;
12095 text.char_indices()
12096 .chain([(text.len(), '\0')])
12097 .filter_map(move |(index, codepoint)| {
12098 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12099 let is_boundary = index == text.len()
12100 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12101 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12102 if is_boundary {
12103 let chunk = &text[prev_index..index];
12104 prev_index = index;
12105 Some(chunk)
12106 } else {
12107 None
12108 }
12109 })
12110}
12111
12112trait RangeToAnchorExt {
12113 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12114}
12115
12116impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12117 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12118 let start_offset = self.start.to_offset(snapshot);
12119 let end_offset = self.end.to_offset(snapshot);
12120 if start_offset == end_offset {
12121 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12122 } else {
12123 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12124 }
12125 }
12126}
12127
12128pub trait RowExt {
12129 fn as_f32(&self) -> f32;
12130
12131 fn next_row(&self) -> Self;
12132
12133 fn previous_row(&self) -> Self;
12134
12135 fn minus(&self, other: Self) -> u32;
12136}
12137
12138impl RowExt for DisplayRow {
12139 fn as_f32(&self) -> f32 {
12140 self.0 as f32
12141 }
12142
12143 fn next_row(&self) -> Self {
12144 Self(self.0 + 1)
12145 }
12146
12147 fn previous_row(&self) -> Self {
12148 Self(self.0.saturating_sub(1))
12149 }
12150
12151 fn minus(&self, other: Self) -> u32 {
12152 self.0 - other.0
12153 }
12154}
12155
12156impl RowExt for MultiBufferRow {
12157 fn as_f32(&self) -> f32 {
12158 self.0 as f32
12159 }
12160
12161 fn next_row(&self) -> Self {
12162 Self(self.0 + 1)
12163 }
12164
12165 fn previous_row(&self) -> Self {
12166 Self(self.0.saturating_sub(1))
12167 }
12168
12169 fn minus(&self, other: Self) -> u32 {
12170 self.0 - other.0
12171 }
12172}
12173
12174trait RowRangeExt {
12175 type Row;
12176
12177 fn len(&self) -> usize;
12178
12179 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12180}
12181
12182impl RowRangeExt for Range<MultiBufferRow> {
12183 type Row = MultiBufferRow;
12184
12185 fn len(&self) -> usize {
12186 (self.end.0 - self.start.0) as usize
12187 }
12188
12189 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12190 (self.start.0..self.end.0).map(MultiBufferRow)
12191 }
12192}
12193
12194impl RowRangeExt for Range<DisplayRow> {
12195 type Row = DisplayRow;
12196
12197 fn len(&self) -> usize {
12198 (self.end.0 - self.start.0) as usize
12199 }
12200
12201 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12202 (self.start.0..self.end.0).map(DisplayRow)
12203 }
12204}
12205
12206fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12207 if hunk.diff_base_byte_range.is_empty() {
12208 DiffHunkStatus::Added
12209 } else if hunk.associated_range.is_empty() {
12210 DiffHunkStatus::Removed
12211 } else {
12212 DiffHunkStatus::Modified
12213 }
12214}