1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18pub mod display_map;
19mod editor_settings;
20mod element;
21mod hunk_diff;
22mod inlay_hint_cache;
23
24mod debounced_delay;
25mod git;
26mod highlight_matching_bracket;
27mod hover_links;
28mod hover_popover;
29mod indent_guides;
30mod inline_completion_provider;
31pub mod items;
32mod mouse_context_menu;
33pub mod movement;
34mod persistence;
35mod rust_analyzer_ext;
36pub mod scroll;
37mod selections_collection;
38pub mod tasks;
39
40#[cfg(test)]
41mod editor_tests;
42#[cfg(any(test, feature = "test-support"))]
43pub mod test;
44use ::git::diff::{DiffHunk, DiffHunkStatus};
45use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
46pub(crate) use actions::*;
47use aho_corasick::AhoCorasick;
48use anyhow::{anyhow, Context as _, Result};
49use blink_manager::BlinkManager;
50use client::{Collaborator, ParticipantIndex};
51use clock::ReplicaId;
52use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
53use convert_case::{Case, Casing};
54use debounced_delay::DebouncedDelay;
55use display_map::*;
56pub use display_map::{DisplayPoint, FoldPlaceholder};
57use editor_settings::CurrentLineHighlight;
58pub use editor_settings::EditorSettings;
59use element::LineWithInvisibles;
60pub use element::{
61 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
62};
63use futures::FutureExt;
64use fuzzy::{StringMatch, StringMatchCandidate};
65use git::blame::GitBlame;
66use git::diff_hunk_to_display;
67use gpui::{
68 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
69 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
70 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
71 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
72 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
73 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
74 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
75};
76use highlight_matching_bracket::refresh_matching_bracket_highlights;
77use hover_popover::{hide_hover, HoverState};
78use hunk_diff::ExpandedHunks;
79pub(crate) use hunk_diff::HunkToExpand;
80use indent_guides::ActiveIndentGuidesState;
81use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
82pub use inline_completion_provider::*;
83pub use items::MAX_TAB_TITLE_LEN;
84use itertools::Itertools;
85use language::{
86 char_kind,
87 language_settings::{self, all_language_settings, InlayHintSettings},
88 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
89 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
90 Point, Selection, SelectionGoal, TransactionId,
91};
92use language::{BufferRow, Runnable, RunnableRange};
93use task::{ResolvedTask, TaskTemplate, TaskVariables};
94
95use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
96use lsp::{DiagnosticSeverity, LanguageServerId};
97use mouse_context_menu::MouseContextMenu;
98use movement::TextLayoutDetails;
99pub use multi_buffer::{
100 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
101 ToPoint,
102};
103use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
104use ordered_float::OrderedFloat;
105use parking_lot::{Mutex, RwLock};
106use project::project_settings::{GitGutterSetting, ProjectSettings};
107use project::{
108 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
109 ProjectTransaction, TaskSourceKind, WorktreeId,
110};
111use rand::prelude::*;
112use rpc::{proto::*, ErrorExt};
113use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
114use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
115use serde::{Deserialize, Serialize};
116use settings::{Settings, SettingsStore};
117use smallvec::SmallVec;
118use snippet::Snippet;
119use std::ops::Not as _;
120use std::{
121 any::TypeId,
122 borrow::Cow,
123 cmp::{self, Ordering, Reverse},
124 mem,
125 num::NonZeroU32,
126 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
127 path::Path,
128 sync::Arc,
129 time::{Duration, Instant},
130};
131pub use sum_tree::Bias;
132use sum_tree::TreeMap;
133use text::{BufferId, OffsetUtf16, Rope};
134use theme::{
135 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
136 ThemeColors, ThemeSettings,
137};
138use ui::{
139 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
140 Tooltip,
141};
142use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
143use workspace::item::{ItemHandle, PreviewTabsSettings};
144use workspace::notifications::{DetachAndPromptErr, NotificationId};
145use workspace::{
146 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
147};
148use workspace::{OpenInTerminal, OpenTerminal, Toast};
149
150use crate::hover_links::find_url;
151
152pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
153const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
154const MAX_LINE_LEN: usize = 1024;
155const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
156const MAX_SELECTION_HISTORY_LEN: usize = 1024;
157pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
158#[doc(hidden)]
159pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
160#[doc(hidden)]
161pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
162
163pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
164
165pub fn render_parsed_markdown(
166 element_id: impl Into<ElementId>,
167 parsed: &language::ParsedMarkdown,
168 editor_style: &EditorStyle,
169 workspace: Option<WeakView<Workspace>>,
170 cx: &mut WindowContext,
171) -> InteractiveText {
172 let code_span_background_color = cx
173 .theme()
174 .colors()
175 .editor_document_highlight_read_background;
176
177 let highlights = gpui::combine_highlights(
178 parsed.highlights.iter().filter_map(|(range, highlight)| {
179 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
180 Some((range.clone(), highlight))
181 }),
182 parsed
183 .regions
184 .iter()
185 .zip(&parsed.region_ranges)
186 .filter_map(|(region, range)| {
187 if region.code {
188 Some((
189 range.clone(),
190 HighlightStyle {
191 background_color: Some(code_span_background_color),
192 ..Default::default()
193 },
194 ))
195 } else {
196 None
197 }
198 }),
199 );
200
201 let mut links = Vec::new();
202 let mut link_ranges = Vec::new();
203 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
204 if let Some(link) = region.link.clone() {
205 links.push(link);
206 link_ranges.push(range.clone());
207 }
208 }
209
210 InteractiveText::new(
211 element_id,
212 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
213 )
214 .on_click(link_ranges, move |clicked_range_ix, cx| {
215 match &links[clicked_range_ix] {
216 markdown::Link::Web { url } => cx.open_url(url),
217 markdown::Link::Path { path } => {
218 if let Some(workspace) = &workspace {
219 _ = workspace.update(cx, |workspace, cx| {
220 workspace.open_abs_path(path.clone(), false, cx).detach();
221 });
222 }
223 }
224 }
225 })
226}
227
228#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
229pub(crate) enum InlayId {
230 Suggestion(usize),
231 Hint(usize),
232}
233
234impl InlayId {
235 fn id(&self) -> usize {
236 match self {
237 Self::Suggestion(id) => *id,
238 Self::Hint(id) => *id,
239 }
240 }
241}
242
243enum DiffRowHighlight {}
244enum DocumentHighlightRead {}
245enum DocumentHighlightWrite {}
246enum InputComposition {}
247
248#[derive(Copy, Clone, PartialEq, Eq)]
249pub enum Direction {
250 Prev,
251 Next,
252}
253
254pub fn init_settings(cx: &mut AppContext) {
255 EditorSettings::register(cx);
256}
257
258pub fn init(cx: &mut AppContext) {
259 init_settings(cx);
260
261 workspace::register_project_item::<Editor>(cx);
262 workspace::register_followable_item::<Editor>(cx);
263 workspace::register_deserializable_item::<Editor>(cx);
264 cx.observe_new_views(
265 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
266 workspace.register_action(Editor::new_file);
267 workspace.register_action(Editor::new_file_in_direction);
268 },
269 )
270 .detach();
271
272 cx.on_action(move |_: &workspace::NewFile, cx| {
273 let app_state = workspace::AppState::global(cx);
274 if let Some(app_state) = app_state.upgrade() {
275 workspace::open_new(app_state, cx, |workspace, cx| {
276 Editor::new_file(workspace, &Default::default(), cx)
277 })
278 .detach();
279 }
280 });
281 cx.on_action(move |_: &workspace::NewWindow, cx| {
282 let app_state = workspace::AppState::global(cx);
283 if let Some(app_state) = app_state.upgrade() {
284 workspace::open_new(app_state, cx, |workspace, cx| {
285 Editor::new_file(workspace, &Default::default(), cx)
286 })
287 .detach();
288 }
289 });
290}
291
292pub struct SearchWithinRange;
293
294trait InvalidationRegion {
295 fn ranges(&self) -> &[Range<Anchor>];
296}
297
298#[derive(Clone, Debug, PartialEq)]
299pub enum SelectPhase {
300 Begin {
301 position: DisplayPoint,
302 add: bool,
303 click_count: usize,
304 },
305 BeginColumnar {
306 position: DisplayPoint,
307 reset: bool,
308 goal_column: u32,
309 },
310 Extend {
311 position: DisplayPoint,
312 click_count: usize,
313 },
314 Update {
315 position: DisplayPoint,
316 goal_column: u32,
317 scroll_delta: gpui::Point<f32>,
318 },
319 End,
320}
321
322#[derive(Clone, Debug)]
323pub enum SelectMode {
324 Character,
325 Word(Range<Anchor>),
326 Line(Range<Anchor>),
327 All,
328}
329
330#[derive(Copy, Clone, PartialEq, Eq, Debug)]
331pub enum EditorMode {
332 SingleLine,
333 AutoHeight { max_lines: usize },
334 Full,
335}
336
337#[derive(Clone, Debug)]
338pub enum SoftWrap {
339 None,
340 PreferLine,
341 EditorWidth,
342 Column(u32),
343}
344
345#[derive(Clone)]
346pub struct EditorStyle {
347 pub background: Hsla,
348 pub local_player: PlayerColor,
349 pub text: TextStyle,
350 pub scrollbar_width: Pixels,
351 pub syntax: Arc<SyntaxTheme>,
352 pub status: StatusColors,
353 pub inlay_hints_style: HighlightStyle,
354 pub suggestions_style: HighlightStyle,
355}
356
357impl Default for EditorStyle {
358 fn default() -> Self {
359 Self {
360 background: Hsla::default(),
361 local_player: PlayerColor::default(),
362 text: TextStyle::default(),
363 scrollbar_width: Pixels::default(),
364 syntax: Default::default(),
365 // HACK: Status colors don't have a real default.
366 // We should look into removing the status colors from the editor
367 // style and retrieve them directly from the theme.
368 status: StatusColors::dark(),
369 inlay_hints_style: HighlightStyle::default(),
370 suggestions_style: HighlightStyle::default(),
371 }
372 }
373}
374
375type CompletionId = usize;
376
377// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
378// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
379
380type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
381
382struct ScrollbarMarkerState {
383 scrollbar_size: Size<Pixels>,
384 dirty: bool,
385 markers: Arc<[PaintQuad]>,
386 pending_refresh: Option<Task<Result<()>>>,
387}
388
389impl ScrollbarMarkerState {
390 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
391 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
392 }
393}
394
395impl Default for ScrollbarMarkerState {
396 fn default() -> Self {
397 Self {
398 scrollbar_size: Size::default(),
399 dirty: false,
400 markers: Arc::from([]),
401 pending_refresh: None,
402 }
403 }
404}
405
406#[derive(Clone, Debug)]
407struct RunnableTasks {
408 templates: Vec<(TaskSourceKind, TaskTemplate)>,
409 offset: MultiBufferOffset,
410 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
411 column: u32,
412 // Values of all named captures, including those starting with '_'
413 extra_variables: HashMap<String, String>,
414 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
415 context_range: Range<BufferOffset>,
416}
417
418#[derive(Clone)]
419struct ResolvedTasks {
420 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
421 position: Anchor,
422}
423#[derive(Copy, Clone, Debug)]
424struct MultiBufferOffset(usize);
425#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
426struct BufferOffset(usize);
427/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
428///
429/// See the [module level documentation](self) for more information.
430pub struct Editor {
431 focus_handle: FocusHandle,
432 /// The text buffer being edited
433 buffer: Model<MultiBuffer>,
434 /// Map of how text in the buffer should be displayed.
435 /// Handles soft wraps, folds, fake inlay text insertions, etc.
436 pub display_map: Model<DisplayMap>,
437 pub selections: SelectionsCollection,
438 pub scroll_manager: ScrollManager,
439 columnar_selection_tail: Option<Anchor>,
440 add_selections_state: Option<AddSelectionsState>,
441 select_next_state: Option<SelectNextState>,
442 select_prev_state: Option<SelectNextState>,
443 selection_history: SelectionHistory,
444 autoclose_regions: Vec<AutocloseRegion>,
445 snippet_stack: InvalidationStack<SnippetState>,
446 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
447 ime_transaction: Option<TransactionId>,
448 active_diagnostics: Option<ActiveDiagnosticGroup>,
449 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
450 project: Option<Model<Project>>,
451 completion_provider: Option<Box<dyn CompletionProvider>>,
452 collaboration_hub: Option<Box<dyn CollaborationHub>>,
453 blink_manager: Model<BlinkManager>,
454 show_cursor_names: bool,
455 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
456 pub show_local_selections: bool,
457 mode: EditorMode,
458 show_breadcrumbs: bool,
459 show_gutter: bool,
460 show_line_numbers: Option<bool>,
461 show_git_diff_gutter: Option<bool>,
462 show_code_actions: Option<bool>,
463 show_wrap_guides: Option<bool>,
464 show_indent_guides: Option<bool>,
465 placeholder_text: Option<Arc<str>>,
466 highlight_order: usize,
467 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
468 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
469 scrollbar_marker_state: ScrollbarMarkerState,
470 active_indent_guides_state: ActiveIndentGuidesState,
471 nav_history: Option<ItemNavHistory>,
472 context_menu: RwLock<Option<ContextMenu>>,
473 mouse_context_menu: Option<MouseContextMenu>,
474 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
475 find_all_references_task_sources: Vec<Anchor>,
476 next_completion_id: CompletionId,
477 completion_documentation_pre_resolve_debounce: DebouncedDelay,
478 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
479 code_actions_task: Option<Task<()>>,
480 document_highlights_task: Option<Task<()>>,
481 pending_rename: Option<RenameState>,
482 searchable: bool,
483 cursor_shape: CursorShape,
484 current_line_highlight: CurrentLineHighlight,
485 collapse_matches: bool,
486 autoindent_mode: Option<AutoindentMode>,
487 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
488 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
489 input_enabled: bool,
490 use_modal_editing: bool,
491 read_only: bool,
492 leader_peer_id: Option<PeerId>,
493 remote_id: Option<ViewId>,
494 hover_state: HoverState,
495 gutter_hovered: bool,
496 hovered_link_state: Option<HoveredLinkState>,
497 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
498 active_inline_completion: Option<Inlay>,
499 show_inline_completions: bool,
500 inlay_hint_cache: InlayHintCache,
501 expanded_hunks: ExpandedHunks,
502 next_inlay_id: usize,
503 _subscriptions: Vec<Subscription>,
504 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
505 gutter_dimensions: GutterDimensions,
506 pub vim_replace_map: HashMap<Range<usize>, String>,
507 style: Option<EditorStyle>,
508 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
509 use_autoclose: bool,
510 auto_replace_emoji_shortcode: bool,
511 show_git_blame_gutter: bool,
512 show_git_blame_inline: bool,
513 show_git_blame_inline_delay_task: Option<Task<()>>,
514 git_blame_inline_enabled: bool,
515 blame: Option<Model<GitBlame>>,
516 blame_subscription: Option<Subscription>,
517 custom_context_menu: Option<
518 Box<
519 dyn 'static
520 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
521 >,
522 >,
523 last_bounds: Option<Bounds<Pixels>>,
524 expect_bounds_change: Option<Bounds<Pixels>>,
525 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
526 tasks_update_task: Option<Task<()>>,
527}
528
529#[derive(Clone)]
530pub struct EditorSnapshot {
531 pub mode: EditorMode,
532 show_gutter: bool,
533 show_line_numbers: Option<bool>,
534 show_git_diff_gutter: Option<bool>,
535 show_code_actions: Option<bool>,
536 render_git_blame_gutter: bool,
537 pub display_snapshot: DisplaySnapshot,
538 pub placeholder_text: Option<Arc<str>>,
539 is_focused: bool,
540 scroll_anchor: ScrollAnchor,
541 ongoing_scroll: OngoingScroll,
542 current_line_highlight: CurrentLineHighlight,
543 gutter_hovered: bool,
544}
545
546const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
547
548#[derive(Debug, Clone, Copy)]
549pub struct GutterDimensions {
550 pub left_padding: Pixels,
551 pub right_padding: Pixels,
552 pub width: Pixels,
553 pub margin: Pixels,
554 pub git_blame_entries_width: Option<Pixels>,
555}
556
557impl Default for GutterDimensions {
558 fn default() -> Self {
559 Self {
560 left_padding: Pixels::ZERO,
561 right_padding: Pixels::ZERO,
562 width: Pixels::ZERO,
563 margin: Pixels::ZERO,
564 git_blame_entries_width: None,
565 }
566 }
567}
568
569#[derive(Debug)]
570pub struct RemoteSelection {
571 pub replica_id: ReplicaId,
572 pub selection: Selection<Anchor>,
573 pub cursor_shape: CursorShape,
574 pub peer_id: PeerId,
575 pub line_mode: bool,
576 pub participant_index: Option<ParticipantIndex>,
577 pub user_name: Option<SharedString>,
578}
579
580#[derive(Clone, Debug)]
581struct SelectionHistoryEntry {
582 selections: Arc<[Selection<Anchor>]>,
583 select_next_state: Option<SelectNextState>,
584 select_prev_state: Option<SelectNextState>,
585 add_selections_state: Option<AddSelectionsState>,
586}
587
588enum SelectionHistoryMode {
589 Normal,
590 Undoing,
591 Redoing,
592}
593
594#[derive(Clone, PartialEq, Eq, Hash)]
595struct HoveredCursor {
596 replica_id: u16,
597 selection_id: usize,
598}
599
600impl Default for SelectionHistoryMode {
601 fn default() -> Self {
602 Self::Normal
603 }
604}
605
606#[derive(Default)]
607struct SelectionHistory {
608 #[allow(clippy::type_complexity)]
609 selections_by_transaction:
610 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
611 mode: SelectionHistoryMode,
612 undo_stack: VecDeque<SelectionHistoryEntry>,
613 redo_stack: VecDeque<SelectionHistoryEntry>,
614}
615
616impl SelectionHistory {
617 fn insert_transaction(
618 &mut self,
619 transaction_id: TransactionId,
620 selections: Arc<[Selection<Anchor>]>,
621 ) {
622 self.selections_by_transaction
623 .insert(transaction_id, (selections, None));
624 }
625
626 #[allow(clippy::type_complexity)]
627 fn transaction(
628 &self,
629 transaction_id: TransactionId,
630 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
631 self.selections_by_transaction.get(&transaction_id)
632 }
633
634 #[allow(clippy::type_complexity)]
635 fn transaction_mut(
636 &mut self,
637 transaction_id: TransactionId,
638 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
639 self.selections_by_transaction.get_mut(&transaction_id)
640 }
641
642 fn push(&mut self, entry: SelectionHistoryEntry) {
643 if !entry.selections.is_empty() {
644 match self.mode {
645 SelectionHistoryMode::Normal => {
646 self.push_undo(entry);
647 self.redo_stack.clear();
648 }
649 SelectionHistoryMode::Undoing => self.push_redo(entry),
650 SelectionHistoryMode::Redoing => self.push_undo(entry),
651 }
652 }
653 }
654
655 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
656 if self
657 .undo_stack
658 .back()
659 .map_or(true, |e| e.selections != entry.selections)
660 {
661 self.undo_stack.push_back(entry);
662 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
663 self.undo_stack.pop_front();
664 }
665 }
666 }
667
668 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
669 if self
670 .redo_stack
671 .back()
672 .map_or(true, |e| e.selections != entry.selections)
673 {
674 self.redo_stack.push_back(entry);
675 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
676 self.redo_stack.pop_front();
677 }
678 }
679 }
680}
681
682struct RowHighlight {
683 index: usize,
684 range: RangeInclusive<Anchor>,
685 color: Option<Hsla>,
686 should_autoscroll: bool,
687}
688
689#[derive(Clone, Debug)]
690struct AddSelectionsState {
691 above: bool,
692 stack: Vec<usize>,
693}
694
695#[derive(Clone)]
696struct SelectNextState {
697 query: AhoCorasick,
698 wordwise: bool,
699 done: bool,
700}
701
702impl std::fmt::Debug for SelectNextState {
703 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
704 f.debug_struct(std::any::type_name::<Self>())
705 .field("wordwise", &self.wordwise)
706 .field("done", &self.done)
707 .finish()
708 }
709}
710
711#[derive(Debug)]
712struct AutocloseRegion {
713 selection_id: usize,
714 range: Range<Anchor>,
715 pair: BracketPair,
716}
717
718#[derive(Debug)]
719struct SnippetState {
720 ranges: Vec<Vec<Range<Anchor>>>,
721 active_index: usize,
722}
723
724#[doc(hidden)]
725pub struct RenameState {
726 pub range: Range<Anchor>,
727 pub old_name: Arc<str>,
728 pub editor: View<Editor>,
729 block_id: BlockId,
730}
731
732struct InvalidationStack<T>(Vec<T>);
733
734struct RegisteredInlineCompletionProvider {
735 provider: Arc<dyn InlineCompletionProviderHandle>,
736 _subscription: Subscription,
737}
738
739enum ContextMenu {
740 Completions(CompletionsMenu),
741 CodeActions(CodeActionsMenu),
742}
743
744impl ContextMenu {
745 fn select_first(
746 &mut self,
747 project: Option<&Model<Project>>,
748 cx: &mut ViewContext<Editor>,
749 ) -> bool {
750 if self.visible() {
751 match self {
752 ContextMenu::Completions(menu) => menu.select_first(project, cx),
753 ContextMenu::CodeActions(menu) => menu.select_first(cx),
754 }
755 true
756 } else {
757 false
758 }
759 }
760
761 fn select_prev(
762 &mut self,
763 project: Option<&Model<Project>>,
764 cx: &mut ViewContext<Editor>,
765 ) -> bool {
766 if self.visible() {
767 match self {
768 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
769 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
770 }
771 true
772 } else {
773 false
774 }
775 }
776
777 fn select_next(
778 &mut self,
779 project: Option<&Model<Project>>,
780 cx: &mut ViewContext<Editor>,
781 ) -> bool {
782 if self.visible() {
783 match self {
784 ContextMenu::Completions(menu) => menu.select_next(project, cx),
785 ContextMenu::CodeActions(menu) => menu.select_next(cx),
786 }
787 true
788 } else {
789 false
790 }
791 }
792
793 fn select_last(
794 &mut self,
795 project: Option<&Model<Project>>,
796 cx: &mut ViewContext<Editor>,
797 ) -> bool {
798 if self.visible() {
799 match self {
800 ContextMenu::Completions(menu) => menu.select_last(project, cx),
801 ContextMenu::CodeActions(menu) => menu.select_last(cx),
802 }
803 true
804 } else {
805 false
806 }
807 }
808
809 fn visible(&self) -> bool {
810 match self {
811 ContextMenu::Completions(menu) => menu.visible(),
812 ContextMenu::CodeActions(menu) => menu.visible(),
813 }
814 }
815
816 fn render(
817 &self,
818 cursor_position: DisplayPoint,
819 style: &EditorStyle,
820 max_height: Pixels,
821 workspace: Option<WeakView<Workspace>>,
822 cx: &mut ViewContext<Editor>,
823 ) -> (ContextMenuOrigin, AnyElement) {
824 match self {
825 ContextMenu::Completions(menu) => (
826 ContextMenuOrigin::EditorPoint(cursor_position),
827 menu.render(style, max_height, workspace, cx),
828 ),
829 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
830 }
831 }
832}
833
834enum ContextMenuOrigin {
835 EditorPoint(DisplayPoint),
836 GutterIndicator(DisplayRow),
837}
838
839#[derive(Clone)]
840struct CompletionsMenu {
841 id: CompletionId,
842 initial_position: Anchor,
843 buffer: Model<Buffer>,
844 completions: Arc<RwLock<Box<[Completion]>>>,
845 match_candidates: Arc<[StringMatchCandidate]>,
846 matches: Arc<[StringMatch]>,
847 selected_item: usize,
848 scroll_handle: UniformListScrollHandle,
849 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
850}
851
852impl CompletionsMenu {
853 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
854 self.selected_item = 0;
855 self.scroll_handle.scroll_to_item(self.selected_item);
856 self.attempt_resolve_selected_completion_documentation(project, cx);
857 cx.notify();
858 }
859
860 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
861 if self.selected_item > 0 {
862 self.selected_item -= 1;
863 } else {
864 self.selected_item = self.matches.len() - 1;
865 }
866 self.scroll_handle.scroll_to_item(self.selected_item);
867 self.attempt_resolve_selected_completion_documentation(project, cx);
868 cx.notify();
869 }
870
871 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
872 if self.selected_item + 1 < self.matches.len() {
873 self.selected_item += 1;
874 } else {
875 self.selected_item = 0;
876 }
877 self.scroll_handle.scroll_to_item(self.selected_item);
878 self.attempt_resolve_selected_completion_documentation(project, cx);
879 cx.notify();
880 }
881
882 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
883 self.selected_item = self.matches.len() - 1;
884 self.scroll_handle.scroll_to_item(self.selected_item);
885 self.attempt_resolve_selected_completion_documentation(project, cx);
886 cx.notify();
887 }
888
889 fn pre_resolve_completion_documentation(
890 buffer: Model<Buffer>,
891 completions: Arc<RwLock<Box<[Completion]>>>,
892 matches: Arc<[StringMatch]>,
893 editor: &Editor,
894 cx: &mut ViewContext<Editor>,
895 ) -> Task<()> {
896 let settings = EditorSettings::get_global(cx);
897 if !settings.show_completion_documentation {
898 return Task::ready(());
899 }
900
901 let Some(provider) = editor.completion_provider.as_ref() else {
902 return Task::ready(());
903 };
904
905 let resolve_task = provider.resolve_completions(
906 buffer,
907 matches.iter().map(|m| m.candidate_id).collect(),
908 completions.clone(),
909 cx,
910 );
911
912 return cx.spawn(move |this, mut cx| async move {
913 if let Some(true) = resolve_task.await.log_err() {
914 this.update(&mut cx, |_, cx| cx.notify()).ok();
915 }
916 });
917 }
918
919 fn attempt_resolve_selected_completion_documentation(
920 &mut self,
921 project: Option<&Model<Project>>,
922 cx: &mut ViewContext<Editor>,
923 ) {
924 let settings = EditorSettings::get_global(cx);
925 if !settings.show_completion_documentation {
926 return;
927 }
928
929 let completion_index = self.matches[self.selected_item].candidate_id;
930 let Some(project) = project else {
931 return;
932 };
933
934 let resolve_task = project.update(cx, |project, cx| {
935 project.resolve_completions(
936 self.buffer.clone(),
937 vec![completion_index],
938 self.completions.clone(),
939 cx,
940 )
941 });
942
943 let delay_ms =
944 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
945 let delay = Duration::from_millis(delay_ms);
946
947 self.selected_completion_documentation_resolve_debounce
948 .lock()
949 .fire_new(delay, cx, |_, cx| {
950 cx.spawn(move |this, mut cx| async move {
951 if let Some(true) = resolve_task.await.log_err() {
952 this.update(&mut cx, |_, cx| cx.notify()).ok();
953 }
954 })
955 });
956 }
957
958 fn visible(&self) -> bool {
959 !self.matches.is_empty()
960 }
961
962 fn render(
963 &self,
964 style: &EditorStyle,
965 max_height: Pixels,
966 workspace: Option<WeakView<Workspace>>,
967 cx: &mut ViewContext<Editor>,
968 ) -> AnyElement {
969 let settings = EditorSettings::get_global(cx);
970 let show_completion_documentation = settings.show_completion_documentation;
971
972 let widest_completion_ix = self
973 .matches
974 .iter()
975 .enumerate()
976 .max_by_key(|(_, mat)| {
977 let completions = self.completions.read();
978 let completion = &completions[mat.candidate_id];
979 let documentation = &completion.documentation;
980
981 let mut len = completion.label.text.chars().count();
982 if let Some(Documentation::SingleLine(text)) = documentation {
983 if show_completion_documentation {
984 len += text.chars().count();
985 }
986 }
987
988 len
989 })
990 .map(|(ix, _)| ix);
991
992 let completions = self.completions.clone();
993 let matches = self.matches.clone();
994 let selected_item = self.selected_item;
995 let style = style.clone();
996
997 let multiline_docs = if show_completion_documentation {
998 let mat = &self.matches[selected_item];
999 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1000 Some(Documentation::MultiLinePlainText(text)) => {
1001 Some(div().child(SharedString::from(text.clone())))
1002 }
1003 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1004 Some(div().child(render_parsed_markdown(
1005 "completions_markdown",
1006 parsed,
1007 &style,
1008 workspace,
1009 cx,
1010 )))
1011 }
1012 _ => None,
1013 };
1014 multiline_docs.map(|div| {
1015 div.id("multiline_docs")
1016 .max_h(max_height)
1017 .flex_1()
1018 .px_1p5()
1019 .py_1()
1020 .min_w(px(260.))
1021 .max_w(px(640.))
1022 .w(px(500.))
1023 .overflow_y_scroll()
1024 .occlude()
1025 })
1026 } else {
1027 None
1028 };
1029
1030 let list = uniform_list(
1031 cx.view().clone(),
1032 "completions",
1033 matches.len(),
1034 move |_editor, range, cx| {
1035 let start_ix = range.start;
1036 let completions_guard = completions.read();
1037
1038 matches[range]
1039 .iter()
1040 .enumerate()
1041 .map(|(ix, mat)| {
1042 let item_ix = start_ix + ix;
1043 let candidate_id = mat.candidate_id;
1044 let completion = &completions_guard[candidate_id];
1045
1046 let documentation = if show_completion_documentation {
1047 &completion.documentation
1048 } else {
1049 &None
1050 };
1051
1052 let highlights = gpui::combine_highlights(
1053 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1054 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1055 |(range, mut highlight)| {
1056 // Ignore font weight for syntax highlighting, as we'll use it
1057 // for fuzzy matches.
1058 highlight.font_weight = None;
1059
1060 if completion.lsp_completion.deprecated.unwrap_or(false) {
1061 highlight.strikethrough = Some(StrikethroughStyle {
1062 thickness: 1.0.into(),
1063 ..Default::default()
1064 });
1065 highlight.color = Some(cx.theme().colors().text_muted);
1066 }
1067
1068 (range, highlight)
1069 },
1070 ),
1071 );
1072 let completion_label = StyledText::new(completion.label.text.clone())
1073 .with_highlights(&style.text, highlights);
1074 let documentation_label =
1075 if let Some(Documentation::SingleLine(text)) = documentation {
1076 if text.trim().is_empty() {
1077 None
1078 } else {
1079 Some(
1080 h_flex().ml_4().child(
1081 Label::new(text.clone())
1082 .size(LabelSize::Small)
1083 .color(Color::Muted),
1084 ),
1085 )
1086 }
1087 } else {
1088 None
1089 };
1090
1091 div().min_w(px(220.)).max_w(px(540.)).child(
1092 ListItem::new(mat.candidate_id)
1093 .inset(true)
1094 .selected(item_ix == selected_item)
1095 .on_click(cx.listener(move |editor, _event, cx| {
1096 cx.stop_propagation();
1097 if let Some(task) = editor.confirm_completion(
1098 &ConfirmCompletion {
1099 item_ix: Some(item_ix),
1100 },
1101 cx,
1102 ) {
1103 task.detach_and_log_err(cx)
1104 }
1105 }))
1106 .child(h_flex().overflow_hidden().child(completion_label))
1107 .end_slot::<Div>(documentation_label),
1108 )
1109 })
1110 .collect()
1111 },
1112 )
1113 .occlude()
1114 .max_h(max_height)
1115 .track_scroll(self.scroll_handle.clone())
1116 .with_width_from_item(widest_completion_ix);
1117
1118 Popover::new()
1119 .child(list)
1120 .when_some(multiline_docs, |popover, multiline_docs| {
1121 popover.aside(multiline_docs)
1122 })
1123 .into_any_element()
1124 }
1125
1126 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1127 let mut matches = if let Some(query) = query {
1128 fuzzy::match_strings(
1129 &self.match_candidates,
1130 query,
1131 query.chars().any(|c| c.is_uppercase()),
1132 100,
1133 &Default::default(),
1134 executor,
1135 )
1136 .await
1137 } else {
1138 self.match_candidates
1139 .iter()
1140 .enumerate()
1141 .map(|(candidate_id, candidate)| StringMatch {
1142 candidate_id,
1143 score: Default::default(),
1144 positions: Default::default(),
1145 string: candidate.string.clone(),
1146 })
1147 .collect()
1148 };
1149
1150 // Remove all candidates where the query's start does not match the start of any word in the candidate
1151 if let Some(query) = query {
1152 if let Some(query_start) = query.chars().next() {
1153 matches.retain(|string_match| {
1154 split_words(&string_match.string).any(|word| {
1155 // Check that the first codepoint of the word as lowercase matches the first
1156 // codepoint of the query as lowercase
1157 word.chars()
1158 .flat_map(|codepoint| codepoint.to_lowercase())
1159 .zip(query_start.to_lowercase())
1160 .all(|(word_cp, query_cp)| word_cp == query_cp)
1161 })
1162 });
1163 }
1164 }
1165
1166 let completions = self.completions.read();
1167 matches.sort_unstable_by_key(|mat| {
1168 // We do want to strike a balance here between what the language server tells us
1169 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1170 // `Creat` and there is a local variable called `CreateComponent`).
1171 // So what we do is: we bucket all matches into two buckets
1172 // - Strong matches
1173 // - Weak matches
1174 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1175 // and the Weak matches are the rest.
1176 //
1177 // For the strong matches, we sort by the language-servers score first and for the weak
1178 // matches, we prefer our fuzzy finder first.
1179 //
1180 // The thinking behind that: it's useless to take the sort_text the language-server gives
1181 // us into account when it's obviously a bad match.
1182
1183 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1184 enum MatchScore<'a> {
1185 Strong {
1186 sort_text: Option<&'a str>,
1187 score: Reverse<OrderedFloat<f64>>,
1188 sort_key: (usize, &'a str),
1189 },
1190 Weak {
1191 score: Reverse<OrderedFloat<f64>>,
1192 sort_text: Option<&'a str>,
1193 sort_key: (usize, &'a str),
1194 },
1195 }
1196
1197 let completion = &completions[mat.candidate_id];
1198 let sort_key = completion.sort_key();
1199 let sort_text = completion.lsp_completion.sort_text.as_deref();
1200 let score = Reverse(OrderedFloat(mat.score));
1201
1202 if mat.score >= 0.2 {
1203 MatchScore::Strong {
1204 sort_text,
1205 score,
1206 sort_key,
1207 }
1208 } else {
1209 MatchScore::Weak {
1210 score,
1211 sort_text,
1212 sort_key,
1213 }
1214 }
1215 });
1216
1217 for mat in &mut matches {
1218 let completion = &completions[mat.candidate_id];
1219 mat.string.clone_from(&completion.label.text);
1220 for position in &mut mat.positions {
1221 *position += completion.label.filter_range.start;
1222 }
1223 }
1224 drop(completions);
1225
1226 self.matches = matches.into();
1227 self.selected_item = 0;
1228 }
1229}
1230
1231#[derive(Clone)]
1232struct CodeActionContents {
1233 tasks: Option<Arc<ResolvedTasks>>,
1234 actions: Option<Arc<[CodeAction]>>,
1235}
1236
1237impl CodeActionContents {
1238 fn len(&self) -> usize {
1239 match (&self.tasks, &self.actions) {
1240 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1241 (Some(tasks), None) => tasks.templates.len(),
1242 (None, Some(actions)) => actions.len(),
1243 (None, None) => 0,
1244 }
1245 }
1246
1247 fn is_empty(&self) -> bool {
1248 match (&self.tasks, &self.actions) {
1249 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1250 (Some(tasks), None) => tasks.templates.is_empty(),
1251 (None, Some(actions)) => actions.is_empty(),
1252 (None, None) => true,
1253 }
1254 }
1255
1256 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1257 self.tasks
1258 .iter()
1259 .flat_map(|tasks| {
1260 tasks
1261 .templates
1262 .iter()
1263 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1264 })
1265 .chain(self.actions.iter().flat_map(|actions| {
1266 actions
1267 .iter()
1268 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1269 }))
1270 }
1271 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1272 match (&self.tasks, &self.actions) {
1273 (Some(tasks), Some(actions)) => {
1274 if index < tasks.templates.len() {
1275 tasks
1276 .templates
1277 .get(index)
1278 .cloned()
1279 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1280 } else {
1281 actions
1282 .get(index - tasks.templates.len())
1283 .cloned()
1284 .map(CodeActionsItem::CodeAction)
1285 }
1286 }
1287 (Some(tasks), None) => tasks
1288 .templates
1289 .get(index)
1290 .cloned()
1291 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1292 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1293 (None, None) => None,
1294 }
1295 }
1296}
1297
1298#[allow(clippy::large_enum_variant)]
1299#[derive(Clone)]
1300enum CodeActionsItem {
1301 Task(TaskSourceKind, ResolvedTask),
1302 CodeAction(CodeAction),
1303}
1304
1305impl CodeActionsItem {
1306 fn as_task(&self) -> Option<&ResolvedTask> {
1307 let Self::Task(_, task) = self else {
1308 return None;
1309 };
1310 Some(task)
1311 }
1312 fn as_code_action(&self) -> Option<&CodeAction> {
1313 let Self::CodeAction(action) = self else {
1314 return None;
1315 };
1316 Some(action)
1317 }
1318 fn label(&self) -> String {
1319 match self {
1320 Self::CodeAction(action) => action.lsp_action.title.clone(),
1321 Self::Task(_, task) => task.resolved_label.clone(),
1322 }
1323 }
1324}
1325
1326struct CodeActionsMenu {
1327 actions: CodeActionContents,
1328 buffer: Model<Buffer>,
1329 selected_item: usize,
1330 scroll_handle: UniformListScrollHandle,
1331 deployed_from_indicator: Option<DisplayRow>,
1332}
1333
1334impl CodeActionsMenu {
1335 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1336 self.selected_item = 0;
1337 self.scroll_handle.scroll_to_item(self.selected_item);
1338 cx.notify()
1339 }
1340
1341 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1342 if self.selected_item > 0 {
1343 self.selected_item -= 1;
1344 } else {
1345 self.selected_item = self.actions.len() - 1;
1346 }
1347 self.scroll_handle.scroll_to_item(self.selected_item);
1348 cx.notify();
1349 }
1350
1351 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1352 if self.selected_item + 1 < self.actions.len() {
1353 self.selected_item += 1;
1354 } else {
1355 self.selected_item = 0;
1356 }
1357 self.scroll_handle.scroll_to_item(self.selected_item);
1358 cx.notify();
1359 }
1360
1361 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1362 self.selected_item = self.actions.len() - 1;
1363 self.scroll_handle.scroll_to_item(self.selected_item);
1364 cx.notify()
1365 }
1366
1367 fn visible(&self) -> bool {
1368 !self.actions.is_empty()
1369 }
1370
1371 fn render(
1372 &self,
1373 cursor_position: DisplayPoint,
1374 _style: &EditorStyle,
1375 max_height: Pixels,
1376 cx: &mut ViewContext<Editor>,
1377 ) -> (ContextMenuOrigin, AnyElement) {
1378 let actions = self.actions.clone();
1379 let selected_item = self.selected_item;
1380 let element = uniform_list(
1381 cx.view().clone(),
1382 "code_actions_menu",
1383 self.actions.len(),
1384 move |_this, range, cx| {
1385 actions
1386 .iter()
1387 .skip(range.start)
1388 .take(range.end - range.start)
1389 .enumerate()
1390 .map(|(ix, action)| {
1391 let item_ix = range.start + ix;
1392 let selected = selected_item == item_ix;
1393 let colors = cx.theme().colors();
1394 div()
1395 .px_2()
1396 .text_color(colors.text)
1397 .when(selected, |style| {
1398 style
1399 .bg(colors.element_active)
1400 .text_color(colors.text_accent)
1401 })
1402 .hover(|style| {
1403 style
1404 .bg(colors.element_hover)
1405 .text_color(colors.text_accent)
1406 })
1407 .whitespace_nowrap()
1408 .when_some(action.as_code_action(), |this, action| {
1409 this.on_mouse_down(
1410 MouseButton::Left,
1411 cx.listener(move |editor, _, cx| {
1412 cx.stop_propagation();
1413 if let Some(task) = editor.confirm_code_action(
1414 &ConfirmCodeAction {
1415 item_ix: Some(item_ix),
1416 },
1417 cx,
1418 ) {
1419 task.detach_and_log_err(cx)
1420 }
1421 }),
1422 )
1423 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1424 .child(SharedString::from(action.lsp_action.title.clone()))
1425 })
1426 .when_some(action.as_task(), |this, task| {
1427 this.on_mouse_down(
1428 MouseButton::Left,
1429 cx.listener(move |editor, _, cx| {
1430 cx.stop_propagation();
1431 if let Some(task) = editor.confirm_code_action(
1432 &ConfirmCodeAction {
1433 item_ix: Some(item_ix),
1434 },
1435 cx,
1436 ) {
1437 task.detach_and_log_err(cx)
1438 }
1439 }),
1440 )
1441 .child(SharedString::from(task.resolved_label.clone()))
1442 })
1443 })
1444 .collect()
1445 },
1446 )
1447 .elevation_1(cx)
1448 .px_2()
1449 .py_1()
1450 .max_h(max_height)
1451 .occlude()
1452 .track_scroll(self.scroll_handle.clone())
1453 .with_width_from_item(
1454 self.actions
1455 .iter()
1456 .enumerate()
1457 .max_by_key(|(_, action)| match action {
1458 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1459 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1460 })
1461 .map(|(ix, _)| ix),
1462 )
1463 .into_any_element();
1464
1465 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1466 ContextMenuOrigin::GutterIndicator(row)
1467 } else {
1468 ContextMenuOrigin::EditorPoint(cursor_position)
1469 };
1470
1471 (cursor_position, element)
1472 }
1473}
1474
1475#[derive(Debug)]
1476struct ActiveDiagnosticGroup {
1477 primary_range: Range<Anchor>,
1478 primary_message: String,
1479 group_id: usize,
1480 blocks: HashMap<BlockId, Diagnostic>,
1481 is_valid: bool,
1482}
1483
1484#[derive(Serialize, Deserialize)]
1485pub struct ClipboardSelection {
1486 pub len: usize,
1487 pub is_entire_line: bool,
1488 pub first_line_indent: u32,
1489}
1490
1491#[derive(Debug)]
1492pub(crate) struct NavigationData {
1493 cursor_anchor: Anchor,
1494 cursor_position: Point,
1495 scroll_anchor: ScrollAnchor,
1496 scroll_top_row: u32,
1497}
1498
1499enum GotoDefinitionKind {
1500 Symbol,
1501 Type,
1502 Implementation,
1503}
1504
1505#[derive(Debug, Clone)]
1506enum InlayHintRefreshReason {
1507 Toggle(bool),
1508 SettingsChange(InlayHintSettings),
1509 NewLinesShown,
1510 BufferEdited(HashSet<Arc<Language>>),
1511 RefreshRequested,
1512 ExcerptsRemoved(Vec<ExcerptId>),
1513}
1514
1515impl InlayHintRefreshReason {
1516 fn description(&self) -> &'static str {
1517 match self {
1518 Self::Toggle(_) => "toggle",
1519 Self::SettingsChange(_) => "settings change",
1520 Self::NewLinesShown => "new lines shown",
1521 Self::BufferEdited(_) => "buffer edited",
1522 Self::RefreshRequested => "refresh requested",
1523 Self::ExcerptsRemoved(_) => "excerpts removed",
1524 }
1525 }
1526}
1527
1528impl Editor {
1529 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1530 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1531 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1532 Self::new(EditorMode::SingleLine, buffer, None, false, cx)
1533 }
1534
1535 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1536 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1537 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1538 Self::new(EditorMode::Full, buffer, None, false, cx)
1539 }
1540
1541 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1542 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1543 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1544 Self::new(
1545 EditorMode::AutoHeight { max_lines },
1546 buffer,
1547 None,
1548 false,
1549 cx,
1550 )
1551 }
1552
1553 pub fn for_buffer(
1554 buffer: Model<Buffer>,
1555 project: Option<Model<Project>>,
1556 cx: &mut ViewContext<Self>,
1557 ) -> Self {
1558 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1559 Self::new(EditorMode::Full, buffer, project, false, cx)
1560 }
1561
1562 pub fn for_multibuffer(
1563 buffer: Model<MultiBuffer>,
1564 project: Option<Model<Project>>,
1565 show_excerpt_controls: bool,
1566 cx: &mut ViewContext<Self>,
1567 ) -> Self {
1568 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1569 }
1570
1571 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1572 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1573 let mut clone = Self::new(
1574 self.mode,
1575 self.buffer.clone(),
1576 self.project.clone(),
1577 show_excerpt_controls,
1578 cx,
1579 );
1580 self.display_map.update(cx, |display_map, cx| {
1581 let snapshot = display_map.snapshot(cx);
1582 clone.display_map.update(cx, |display_map, cx| {
1583 display_map.set_state(&snapshot, cx);
1584 });
1585 });
1586 clone.selections.clone_state(&self.selections);
1587 clone.scroll_manager.clone_state(&self.scroll_manager);
1588 clone.searchable = self.searchable;
1589 clone
1590 }
1591
1592 fn new(
1593 mode: EditorMode,
1594 buffer: Model<MultiBuffer>,
1595 project: Option<Model<Project>>,
1596 show_excerpt_controls: bool,
1597 cx: &mut ViewContext<Self>,
1598 ) -> Self {
1599 let style = cx.text_style();
1600 let font_size = style.font_size.to_pixels(cx.rem_size());
1601 let editor = cx.view().downgrade();
1602 let fold_placeholder = FoldPlaceholder {
1603 constrain_width: true,
1604 render: Arc::new(move |fold_id, fold_range, cx| {
1605 let editor = editor.clone();
1606 div()
1607 .id(fold_id)
1608 .bg(cx.theme().colors().ghost_element_background)
1609 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1610 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1611 .rounded_sm()
1612 .size_full()
1613 .cursor_pointer()
1614 .child("⋯")
1615 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1616 .on_click(move |_, cx| {
1617 editor
1618 .update(cx, |editor, cx| {
1619 editor.unfold_ranges(
1620 [fold_range.start..fold_range.end],
1621 true,
1622 false,
1623 cx,
1624 );
1625 cx.stop_propagation();
1626 })
1627 .ok();
1628 })
1629 .into_any()
1630 }),
1631 merge_adjacent: true,
1632 };
1633 let display_map = cx.new_model(|cx| {
1634 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1635
1636 DisplayMap::new(
1637 buffer.clone(),
1638 style.font(),
1639 font_size,
1640 None,
1641 show_excerpt_controls,
1642 file_header_size,
1643 1,
1644 1,
1645 fold_placeholder,
1646 cx,
1647 )
1648 });
1649
1650 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1651
1652 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1653
1654 let soft_wrap_mode_override =
1655 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1656
1657 let mut project_subscriptions = Vec::new();
1658 if mode == EditorMode::Full {
1659 if let Some(project) = project.as_ref() {
1660 if buffer.read(cx).is_singleton() {
1661 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1662 cx.emit(EditorEvent::TitleChanged);
1663 }));
1664 }
1665 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1666 if let project::Event::RefreshInlayHints = event {
1667 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1668 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1669 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1670 let focus_handle = editor.focus_handle(cx);
1671 if focus_handle.is_focused(cx) {
1672 let snapshot = buffer.read(cx).snapshot();
1673 for (range, snippet) in snippet_edits {
1674 let editor_range =
1675 language::range_from_lsp(*range).to_offset(&snapshot);
1676 editor
1677 .insert_snippet(&[editor_range], snippet.clone(), cx)
1678 .ok();
1679 }
1680 }
1681 }
1682 }
1683 }));
1684 let task_inventory = project.read(cx).task_inventory().clone();
1685 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1686 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1687 }));
1688 }
1689 }
1690
1691 let inlay_hint_settings = inlay_hint_settings(
1692 selections.newest_anchor().head(),
1693 &buffer.read(cx).snapshot(cx),
1694 cx,
1695 );
1696 let focus_handle = cx.focus_handle();
1697 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1698 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1699
1700 let show_indent_guides = if mode == EditorMode::SingleLine {
1701 Some(false)
1702 } else {
1703 None
1704 };
1705
1706 let mut this = Self {
1707 focus_handle,
1708 buffer: buffer.clone(),
1709 display_map: display_map.clone(),
1710 selections,
1711 scroll_manager: ScrollManager::new(cx),
1712 columnar_selection_tail: None,
1713 add_selections_state: None,
1714 select_next_state: None,
1715 select_prev_state: None,
1716 selection_history: Default::default(),
1717 autoclose_regions: Default::default(),
1718 snippet_stack: Default::default(),
1719 select_larger_syntax_node_stack: Vec::new(),
1720 ime_transaction: Default::default(),
1721 active_diagnostics: None,
1722 soft_wrap_mode_override,
1723 completion_provider: project.clone().map(|project| Box::new(project) as _),
1724 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1725 project,
1726 blink_manager: blink_manager.clone(),
1727 show_local_selections: true,
1728 mode,
1729 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1730 show_gutter: mode == EditorMode::Full,
1731 show_line_numbers: None,
1732 show_git_diff_gutter: None,
1733 show_code_actions: None,
1734 show_wrap_guides: None,
1735 show_indent_guides,
1736 placeholder_text: None,
1737 highlight_order: 0,
1738 highlighted_rows: HashMap::default(),
1739 background_highlights: Default::default(),
1740 scrollbar_marker_state: ScrollbarMarkerState::default(),
1741 active_indent_guides_state: ActiveIndentGuidesState::default(),
1742 nav_history: None,
1743 context_menu: RwLock::new(None),
1744 mouse_context_menu: None,
1745 completion_tasks: Default::default(),
1746 find_all_references_task_sources: Vec::new(),
1747 next_completion_id: 0,
1748 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1749 next_inlay_id: 0,
1750 available_code_actions: Default::default(),
1751 code_actions_task: Default::default(),
1752 document_highlights_task: Default::default(),
1753 pending_rename: Default::default(),
1754 searchable: true,
1755 cursor_shape: Default::default(),
1756 current_line_highlight: EditorSettings::get_global(cx).current_line_highlight,
1757 autoindent_mode: Some(AutoindentMode::EachLine),
1758 collapse_matches: false,
1759 workspace: None,
1760 keymap_context_layers: Default::default(),
1761 input_enabled: true,
1762 use_modal_editing: mode == EditorMode::Full,
1763 read_only: false,
1764 use_autoclose: true,
1765 auto_replace_emoji_shortcode: false,
1766 leader_peer_id: None,
1767 remote_id: None,
1768 hover_state: Default::default(),
1769 hovered_link_state: Default::default(),
1770 inline_completion_provider: None,
1771 active_inline_completion: None,
1772 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1773 expanded_hunks: ExpandedHunks::default(),
1774 gutter_hovered: false,
1775 pixel_position_of_newest_cursor: None,
1776 last_bounds: None,
1777 expect_bounds_change: None,
1778 gutter_dimensions: GutterDimensions::default(),
1779 style: None,
1780 show_cursor_names: false,
1781 hovered_cursors: Default::default(),
1782 editor_actions: Default::default(),
1783 vim_replace_map: Default::default(),
1784 show_inline_completions: mode == EditorMode::Full,
1785 custom_context_menu: None,
1786 show_git_blame_gutter: false,
1787 show_git_blame_inline: false,
1788 show_git_blame_inline_delay_task: None,
1789 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1790 blame: None,
1791 blame_subscription: None,
1792 tasks: Default::default(),
1793 _subscriptions: vec![
1794 cx.observe(&buffer, Self::on_buffer_changed),
1795 cx.subscribe(&buffer, Self::on_buffer_event),
1796 cx.observe(&display_map, Self::on_display_map_changed),
1797 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1798 cx.observe_global::<SettingsStore>(Self::settings_changed),
1799 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1800 cx.observe_window_activation(|editor, cx| {
1801 let active = cx.is_window_active();
1802 editor.blink_manager.update(cx, |blink_manager, cx| {
1803 if active {
1804 blink_manager.enable(cx);
1805 } else {
1806 blink_manager.show_cursor(cx);
1807 blink_manager.disable(cx);
1808 }
1809 });
1810 }),
1811 ],
1812 tasks_update_task: None,
1813 };
1814 this.tasks_update_task = Some(this.refresh_runnables(cx));
1815 this._subscriptions.extend(project_subscriptions);
1816
1817 this.end_selection(cx);
1818 this.scroll_manager.show_scrollbar(cx);
1819
1820 if mode == EditorMode::Full {
1821 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1822 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1823
1824 if this.git_blame_inline_enabled {
1825 this.git_blame_inline_enabled = true;
1826 this.start_git_blame_inline(false, cx);
1827 }
1828 }
1829
1830 this.report_editor_event("open", None, cx);
1831 this
1832 }
1833
1834 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1835 self.mouse_context_menu
1836 .as_ref()
1837 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1838 }
1839
1840 fn key_context(&self, cx: &AppContext) -> KeyContext {
1841 let mut key_context = KeyContext::new_with_defaults();
1842 key_context.add("Editor");
1843 let mode = match self.mode {
1844 EditorMode::SingleLine => "single_line",
1845 EditorMode::AutoHeight { .. } => "auto_height",
1846 EditorMode::Full => "full",
1847 };
1848 key_context.set("mode", mode);
1849 if self.pending_rename.is_some() {
1850 key_context.add("renaming");
1851 }
1852 if self.context_menu_visible() {
1853 match self.context_menu.read().as_ref() {
1854 Some(ContextMenu::Completions(_)) => {
1855 key_context.add("menu");
1856 key_context.add("showing_completions")
1857 }
1858 Some(ContextMenu::CodeActions(_)) => {
1859 key_context.add("menu");
1860 key_context.add("showing_code_actions")
1861 }
1862 None => {}
1863 }
1864 }
1865
1866 for layer in self.keymap_context_layers.values() {
1867 key_context.extend(layer);
1868 }
1869
1870 if let Some(extension) = self
1871 .buffer
1872 .read(cx)
1873 .as_singleton()
1874 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1875 {
1876 key_context.set("extension", extension.to_string());
1877 }
1878
1879 if self.has_active_inline_completion(cx) {
1880 key_context.add("copilot_suggestion");
1881 key_context.add("inline_completion");
1882 }
1883
1884 key_context
1885 }
1886
1887 pub fn new_file(
1888 workspace: &mut Workspace,
1889 _: &workspace::NewFile,
1890 cx: &mut ViewContext<Workspace>,
1891 ) {
1892 let project = workspace.project().clone();
1893 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1894
1895 cx.spawn(|workspace, mut cx| async move {
1896 let buffer = create.await?;
1897 workspace.update(&mut cx, |workspace, cx| {
1898 workspace.add_item_to_active_pane(
1899 Box::new(
1900 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1901 ),
1902 None,
1903 cx,
1904 )
1905 })
1906 })
1907 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1908 ErrorCode::RemoteUpgradeRequired => Some(format!(
1909 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1910 e.error_tag("required").unwrap_or("the latest version")
1911 )),
1912 _ => None,
1913 });
1914 }
1915
1916 pub fn new_file_in_direction(
1917 workspace: &mut Workspace,
1918 action: &workspace::NewFileInDirection,
1919 cx: &mut ViewContext<Workspace>,
1920 ) {
1921 let project = workspace.project().clone();
1922 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1923 let direction = action.0;
1924
1925 cx.spawn(|workspace, mut cx| async move {
1926 let buffer = create.await?;
1927 workspace.update(&mut cx, move |workspace, cx| {
1928 workspace.split_item(
1929 direction,
1930 Box::new(
1931 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1932 ),
1933 cx,
1934 )
1935 })?;
1936 anyhow::Ok(())
1937 })
1938 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1939 ErrorCode::RemoteUpgradeRequired => Some(format!(
1940 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1941 e.error_tag("required").unwrap_or("the latest version")
1942 )),
1943 _ => None,
1944 });
1945 }
1946
1947 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1948 self.buffer.read(cx).replica_id()
1949 }
1950
1951 pub fn leader_peer_id(&self) -> Option<PeerId> {
1952 self.leader_peer_id
1953 }
1954
1955 pub fn buffer(&self) -> &Model<MultiBuffer> {
1956 &self.buffer
1957 }
1958
1959 pub fn workspace(&self) -> Option<View<Workspace>> {
1960 self.workspace.as_ref()?.0.upgrade()
1961 }
1962
1963 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1964 self.buffer().read(cx).title(cx)
1965 }
1966
1967 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1968 EditorSnapshot {
1969 mode: self.mode,
1970 show_gutter: self.show_gutter,
1971 show_line_numbers: self.show_line_numbers,
1972 show_git_diff_gutter: self.show_git_diff_gutter,
1973 show_code_actions: self.show_code_actions,
1974 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1975 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1976 scroll_anchor: self.scroll_manager.anchor(),
1977 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1978 placeholder_text: self.placeholder_text.clone(),
1979 is_focused: self.focus_handle.is_focused(cx),
1980 current_line_highlight: self.current_line_highlight,
1981 gutter_hovered: self.gutter_hovered,
1982 }
1983 }
1984
1985 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1986 self.buffer.read(cx).language_at(point, cx)
1987 }
1988
1989 pub fn file_at<T: ToOffset>(
1990 &self,
1991 point: T,
1992 cx: &AppContext,
1993 ) -> Option<Arc<dyn language::File>> {
1994 self.buffer.read(cx).read(cx).file_at(point).cloned()
1995 }
1996
1997 pub fn active_excerpt(
1998 &self,
1999 cx: &AppContext,
2000 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2001 self.buffer
2002 .read(cx)
2003 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2004 }
2005
2006 pub fn mode(&self) -> EditorMode {
2007 self.mode
2008 }
2009
2010 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2011 self.collaboration_hub.as_deref()
2012 }
2013
2014 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2015 self.collaboration_hub = Some(hub);
2016 }
2017
2018 pub fn set_custom_context_menu(
2019 &mut self,
2020 f: impl 'static
2021 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2022 ) {
2023 self.custom_context_menu = Some(Box::new(f))
2024 }
2025
2026 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2027 self.completion_provider = Some(provider);
2028 }
2029
2030 pub fn set_inline_completion_provider<T>(
2031 &mut self,
2032 provider: Option<Model<T>>,
2033 cx: &mut ViewContext<Self>,
2034 ) where
2035 T: InlineCompletionProvider,
2036 {
2037 self.inline_completion_provider =
2038 provider.map(|provider| RegisteredInlineCompletionProvider {
2039 _subscription: cx.observe(&provider, |this, _, cx| {
2040 if this.focus_handle.is_focused(cx) {
2041 this.update_visible_inline_completion(cx);
2042 }
2043 }),
2044 provider: Arc::new(provider),
2045 });
2046 self.refresh_inline_completion(false, cx);
2047 }
2048
2049 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
2050 self.placeholder_text.as_deref()
2051 }
2052
2053 pub fn set_placeholder_text(
2054 &mut self,
2055 placeholder_text: impl Into<Arc<str>>,
2056 cx: &mut ViewContext<Self>,
2057 ) {
2058 let placeholder_text = Some(placeholder_text.into());
2059 if self.placeholder_text != placeholder_text {
2060 self.placeholder_text = placeholder_text;
2061 cx.notify();
2062 }
2063 }
2064
2065 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2066 self.cursor_shape = cursor_shape;
2067 cx.notify();
2068 }
2069
2070 pub fn set_current_line_highlight(&mut self, current_line_highlight: CurrentLineHighlight) {
2071 self.current_line_highlight = current_line_highlight;
2072 }
2073
2074 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2075 self.collapse_matches = collapse_matches;
2076 }
2077
2078 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2079 if self.collapse_matches {
2080 return range.start..range.start;
2081 }
2082 range.clone()
2083 }
2084
2085 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2086 if self.display_map.read(cx).clip_at_line_ends != clip {
2087 self.display_map
2088 .update(cx, |map, _| map.clip_at_line_ends = clip);
2089 }
2090 }
2091
2092 pub fn set_keymap_context_layer<Tag: 'static>(
2093 &mut self,
2094 context: KeyContext,
2095 cx: &mut ViewContext<Self>,
2096 ) {
2097 self.keymap_context_layers
2098 .insert(TypeId::of::<Tag>(), context);
2099 cx.notify();
2100 }
2101
2102 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2103 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2104 cx.notify();
2105 }
2106
2107 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2108 self.input_enabled = input_enabled;
2109 }
2110
2111 pub fn set_autoindent(&mut self, autoindent: bool) {
2112 if autoindent {
2113 self.autoindent_mode = Some(AutoindentMode::EachLine);
2114 } else {
2115 self.autoindent_mode = None;
2116 }
2117 }
2118
2119 pub fn read_only(&self, cx: &AppContext) -> bool {
2120 self.read_only || self.buffer.read(cx).read_only()
2121 }
2122
2123 pub fn set_read_only(&mut self, read_only: bool) {
2124 self.read_only = read_only;
2125 }
2126
2127 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2128 self.use_autoclose = autoclose;
2129 }
2130
2131 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2132 self.auto_replace_emoji_shortcode = auto_replace;
2133 }
2134
2135 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2136 self.show_inline_completions = show_inline_completions;
2137 }
2138
2139 pub fn set_use_modal_editing(&mut self, to: bool) {
2140 self.use_modal_editing = to;
2141 }
2142
2143 pub fn use_modal_editing(&self) -> bool {
2144 self.use_modal_editing
2145 }
2146
2147 fn selections_did_change(
2148 &mut self,
2149 local: bool,
2150 old_cursor_position: &Anchor,
2151 show_completions: bool,
2152 cx: &mut ViewContext<Self>,
2153 ) {
2154 // Copy selections to primary selection buffer
2155 #[cfg(target_os = "linux")]
2156 if local {
2157 let selections = self.selections.all::<usize>(cx);
2158 let buffer_handle = self.buffer.read(cx).read(cx);
2159
2160 let mut text = String::new();
2161 for (index, selection) in selections.iter().enumerate() {
2162 let text_for_selection = buffer_handle
2163 .text_for_range(selection.start..selection.end)
2164 .collect::<String>();
2165
2166 text.push_str(&text_for_selection);
2167 if index != selections.len() - 1 {
2168 text.push('\n');
2169 }
2170 }
2171
2172 if !text.is_empty() {
2173 cx.write_to_primary(ClipboardItem::new(text));
2174 }
2175 }
2176
2177 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2178 self.buffer.update(cx, |buffer, cx| {
2179 buffer.set_active_selections(
2180 &self.selections.disjoint_anchors(),
2181 self.selections.line_mode,
2182 self.cursor_shape,
2183 cx,
2184 )
2185 });
2186 }
2187
2188 let display_map = self
2189 .display_map
2190 .update(cx, |display_map, cx| display_map.snapshot(cx));
2191 let buffer = &display_map.buffer_snapshot;
2192 self.add_selections_state = None;
2193 self.select_next_state = None;
2194 self.select_prev_state = None;
2195 self.select_larger_syntax_node_stack.clear();
2196 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2197 self.snippet_stack
2198 .invalidate(&self.selections.disjoint_anchors(), buffer);
2199 self.take_rename(false, cx);
2200
2201 let new_cursor_position = self.selections.newest_anchor().head();
2202
2203 self.push_to_nav_history(
2204 *old_cursor_position,
2205 Some(new_cursor_position.to_point(buffer)),
2206 cx,
2207 );
2208
2209 if local {
2210 let new_cursor_position = self.selections.newest_anchor().head();
2211 let mut context_menu = self.context_menu.write();
2212 let completion_menu = match context_menu.as_ref() {
2213 Some(ContextMenu::Completions(menu)) => Some(menu),
2214
2215 _ => {
2216 *context_menu = None;
2217 None
2218 }
2219 };
2220
2221 if let Some(completion_menu) = completion_menu {
2222 let cursor_position = new_cursor_position.to_offset(buffer);
2223 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2224 if kind == Some(CharKind::Word)
2225 && word_range.to_inclusive().contains(&cursor_position)
2226 {
2227 let mut completion_menu = completion_menu.clone();
2228 drop(context_menu);
2229
2230 let query = Self::completion_query(buffer, cursor_position);
2231 cx.spawn(move |this, mut cx| async move {
2232 completion_menu
2233 .filter(query.as_deref(), cx.background_executor().clone())
2234 .await;
2235
2236 this.update(&mut cx, |this, cx| {
2237 let mut context_menu = this.context_menu.write();
2238 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2239 return;
2240 };
2241
2242 if menu.id > completion_menu.id {
2243 return;
2244 }
2245
2246 *context_menu = Some(ContextMenu::Completions(completion_menu));
2247 drop(context_menu);
2248 cx.notify();
2249 })
2250 })
2251 .detach();
2252
2253 if show_completions {
2254 self.show_completions(&ShowCompletions, cx);
2255 }
2256 } else {
2257 drop(context_menu);
2258 self.hide_context_menu(cx);
2259 }
2260 } else {
2261 drop(context_menu);
2262 }
2263
2264 hide_hover(self, cx);
2265
2266 if old_cursor_position.to_display_point(&display_map).row()
2267 != new_cursor_position.to_display_point(&display_map).row()
2268 {
2269 self.available_code_actions.take();
2270 }
2271 self.refresh_code_actions(cx);
2272 self.refresh_document_highlights(cx);
2273 refresh_matching_bracket_highlights(self, cx);
2274 self.discard_inline_completion(false, cx);
2275 if self.git_blame_inline_enabled {
2276 self.start_inline_blame_timer(cx);
2277 }
2278 }
2279
2280 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2281 cx.emit(EditorEvent::SelectionsChanged { local });
2282
2283 if self.selections.disjoint_anchors().len() == 1 {
2284 cx.emit(SearchEvent::ActiveMatchChanged)
2285 }
2286
2287 cx.notify();
2288 }
2289
2290 pub fn change_selections<R>(
2291 &mut self,
2292 autoscroll: Option<Autoscroll>,
2293 cx: &mut ViewContext<Self>,
2294 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2295 ) -> R {
2296 self.change_selections_inner(autoscroll, true, cx, change)
2297 }
2298
2299 pub fn change_selections_inner<R>(
2300 &mut self,
2301 autoscroll: Option<Autoscroll>,
2302 request_completions: bool,
2303 cx: &mut ViewContext<Self>,
2304 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2305 ) -> R {
2306 let old_cursor_position = self.selections.newest_anchor().head();
2307 self.push_to_selection_history();
2308
2309 let (changed, result) = self.selections.change_with(cx, change);
2310
2311 if changed {
2312 if let Some(autoscroll) = autoscroll {
2313 self.request_autoscroll(autoscroll, cx);
2314 }
2315 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2316 }
2317
2318 result
2319 }
2320
2321 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2322 where
2323 I: IntoIterator<Item = (Range<S>, T)>,
2324 S: ToOffset,
2325 T: Into<Arc<str>>,
2326 {
2327 if self.read_only(cx) {
2328 return;
2329 }
2330
2331 self.buffer
2332 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2333 }
2334
2335 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2336 where
2337 I: IntoIterator<Item = (Range<S>, T)>,
2338 S: ToOffset,
2339 T: Into<Arc<str>>,
2340 {
2341 if self.read_only(cx) {
2342 return;
2343 }
2344
2345 self.buffer.update(cx, |buffer, cx| {
2346 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2347 });
2348 }
2349
2350 pub fn edit_with_block_indent<I, S, T>(
2351 &mut self,
2352 edits: I,
2353 original_indent_columns: Vec<u32>,
2354 cx: &mut ViewContext<Self>,
2355 ) where
2356 I: IntoIterator<Item = (Range<S>, T)>,
2357 S: ToOffset,
2358 T: Into<Arc<str>>,
2359 {
2360 if self.read_only(cx) {
2361 return;
2362 }
2363
2364 self.buffer.update(cx, |buffer, cx| {
2365 buffer.edit(
2366 edits,
2367 Some(AutoindentMode::Block {
2368 original_indent_columns,
2369 }),
2370 cx,
2371 )
2372 });
2373 }
2374
2375 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2376 self.hide_context_menu(cx);
2377
2378 match phase {
2379 SelectPhase::Begin {
2380 position,
2381 add,
2382 click_count,
2383 } => self.begin_selection(position, add, click_count, cx),
2384 SelectPhase::BeginColumnar {
2385 position,
2386 goal_column,
2387 reset,
2388 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2389 SelectPhase::Extend {
2390 position,
2391 click_count,
2392 } => self.extend_selection(position, click_count, cx),
2393 SelectPhase::Update {
2394 position,
2395 goal_column,
2396 scroll_delta,
2397 } => self.update_selection(position, goal_column, scroll_delta, cx),
2398 SelectPhase::End => self.end_selection(cx),
2399 }
2400 }
2401
2402 fn extend_selection(
2403 &mut self,
2404 position: DisplayPoint,
2405 click_count: usize,
2406 cx: &mut ViewContext<Self>,
2407 ) {
2408 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2409 let tail = self.selections.newest::<usize>(cx).tail();
2410 self.begin_selection(position, false, click_count, cx);
2411
2412 let position = position.to_offset(&display_map, Bias::Left);
2413 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2414
2415 let mut pending_selection = self
2416 .selections
2417 .pending_anchor()
2418 .expect("extend_selection not called with pending selection");
2419 if position >= tail {
2420 pending_selection.start = tail_anchor;
2421 } else {
2422 pending_selection.end = tail_anchor;
2423 pending_selection.reversed = true;
2424 }
2425
2426 let mut pending_mode = self.selections.pending_mode().unwrap();
2427 match &mut pending_mode {
2428 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2429 _ => {}
2430 }
2431
2432 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2433 s.set_pending(pending_selection, pending_mode)
2434 });
2435 }
2436
2437 fn begin_selection(
2438 &mut self,
2439 position: DisplayPoint,
2440 add: bool,
2441 click_count: usize,
2442 cx: &mut ViewContext<Self>,
2443 ) {
2444 if !self.focus_handle.is_focused(cx) {
2445 cx.focus(&self.focus_handle);
2446 }
2447
2448 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2449 let buffer = &display_map.buffer_snapshot;
2450 let newest_selection = self.selections.newest_anchor().clone();
2451 let position = display_map.clip_point(position, Bias::Left);
2452
2453 let start;
2454 let end;
2455 let mode;
2456 let auto_scroll;
2457 match click_count {
2458 1 => {
2459 start = buffer.anchor_before(position.to_point(&display_map));
2460 end = start;
2461 mode = SelectMode::Character;
2462 auto_scroll = true;
2463 }
2464 2 => {
2465 let range = movement::surrounding_word(&display_map, position);
2466 start = buffer.anchor_before(range.start.to_point(&display_map));
2467 end = buffer.anchor_before(range.end.to_point(&display_map));
2468 mode = SelectMode::Word(start..end);
2469 auto_scroll = true;
2470 }
2471 3 => {
2472 let position = display_map
2473 .clip_point(position, Bias::Left)
2474 .to_point(&display_map);
2475 let line_start = display_map.prev_line_boundary(position).0;
2476 let next_line_start = buffer.clip_point(
2477 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2478 Bias::Left,
2479 );
2480 start = buffer.anchor_before(line_start);
2481 end = buffer.anchor_before(next_line_start);
2482 mode = SelectMode::Line(start..end);
2483 auto_scroll = true;
2484 }
2485 _ => {
2486 start = buffer.anchor_before(0);
2487 end = buffer.anchor_before(buffer.len());
2488 mode = SelectMode::All;
2489 auto_scroll = false;
2490 }
2491 }
2492
2493 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2494 if !add {
2495 s.clear_disjoint();
2496 } else if click_count > 1 {
2497 s.delete(newest_selection.id)
2498 }
2499
2500 s.set_pending_anchor_range(start..end, mode);
2501 });
2502 }
2503
2504 fn begin_columnar_selection(
2505 &mut self,
2506 position: DisplayPoint,
2507 goal_column: u32,
2508 reset: bool,
2509 cx: &mut ViewContext<Self>,
2510 ) {
2511 if !self.focus_handle.is_focused(cx) {
2512 cx.focus(&self.focus_handle);
2513 }
2514
2515 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2516
2517 if reset {
2518 let pointer_position = display_map
2519 .buffer_snapshot
2520 .anchor_before(position.to_point(&display_map));
2521
2522 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2523 s.clear_disjoint();
2524 s.set_pending_anchor_range(
2525 pointer_position..pointer_position,
2526 SelectMode::Character,
2527 );
2528 });
2529 }
2530
2531 let tail = self.selections.newest::<Point>(cx).tail();
2532 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2533
2534 if !reset {
2535 self.select_columns(
2536 tail.to_display_point(&display_map),
2537 position,
2538 goal_column,
2539 &display_map,
2540 cx,
2541 );
2542 }
2543 }
2544
2545 fn update_selection(
2546 &mut self,
2547 position: DisplayPoint,
2548 goal_column: u32,
2549 scroll_delta: gpui::Point<f32>,
2550 cx: &mut ViewContext<Self>,
2551 ) {
2552 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2553
2554 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2555 let tail = tail.to_display_point(&display_map);
2556 self.select_columns(tail, position, goal_column, &display_map, cx);
2557 } else if let Some(mut pending) = self.selections.pending_anchor() {
2558 let buffer = self.buffer.read(cx).snapshot(cx);
2559 let head;
2560 let tail;
2561 let mode = self.selections.pending_mode().unwrap();
2562 match &mode {
2563 SelectMode::Character => {
2564 head = position.to_point(&display_map);
2565 tail = pending.tail().to_point(&buffer);
2566 }
2567 SelectMode::Word(original_range) => {
2568 let original_display_range = original_range.start.to_display_point(&display_map)
2569 ..original_range.end.to_display_point(&display_map);
2570 let original_buffer_range = original_display_range.start.to_point(&display_map)
2571 ..original_display_range.end.to_point(&display_map);
2572 if movement::is_inside_word(&display_map, position)
2573 || original_display_range.contains(&position)
2574 {
2575 let word_range = movement::surrounding_word(&display_map, position);
2576 if word_range.start < original_display_range.start {
2577 head = word_range.start.to_point(&display_map);
2578 } else {
2579 head = word_range.end.to_point(&display_map);
2580 }
2581 } else {
2582 head = position.to_point(&display_map);
2583 }
2584
2585 if head <= original_buffer_range.start {
2586 tail = original_buffer_range.end;
2587 } else {
2588 tail = original_buffer_range.start;
2589 }
2590 }
2591 SelectMode::Line(original_range) => {
2592 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2593
2594 let position = display_map
2595 .clip_point(position, Bias::Left)
2596 .to_point(&display_map);
2597 let line_start = display_map.prev_line_boundary(position).0;
2598 let next_line_start = buffer.clip_point(
2599 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2600 Bias::Left,
2601 );
2602
2603 if line_start < original_range.start {
2604 head = line_start
2605 } else {
2606 head = next_line_start
2607 }
2608
2609 if head <= original_range.start {
2610 tail = original_range.end;
2611 } else {
2612 tail = original_range.start;
2613 }
2614 }
2615 SelectMode::All => {
2616 return;
2617 }
2618 };
2619
2620 if head < tail {
2621 pending.start = buffer.anchor_before(head);
2622 pending.end = buffer.anchor_before(tail);
2623 pending.reversed = true;
2624 } else {
2625 pending.start = buffer.anchor_before(tail);
2626 pending.end = buffer.anchor_before(head);
2627 pending.reversed = false;
2628 }
2629
2630 self.change_selections(None, cx, |s| {
2631 s.set_pending(pending, mode);
2632 });
2633 } else {
2634 log::error!("update_selection dispatched with no pending selection");
2635 return;
2636 }
2637
2638 self.apply_scroll_delta(scroll_delta, cx);
2639 cx.notify();
2640 }
2641
2642 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2643 self.columnar_selection_tail.take();
2644 if self.selections.pending_anchor().is_some() {
2645 let selections = self.selections.all::<usize>(cx);
2646 self.change_selections(None, cx, |s| {
2647 s.select(selections);
2648 s.clear_pending();
2649 });
2650 }
2651 }
2652
2653 fn select_columns(
2654 &mut self,
2655 tail: DisplayPoint,
2656 head: DisplayPoint,
2657 goal_column: u32,
2658 display_map: &DisplaySnapshot,
2659 cx: &mut ViewContext<Self>,
2660 ) {
2661 let start_row = cmp::min(tail.row(), head.row());
2662 let end_row = cmp::max(tail.row(), head.row());
2663 let start_column = cmp::min(tail.column(), goal_column);
2664 let end_column = cmp::max(tail.column(), goal_column);
2665 let reversed = start_column < tail.column();
2666
2667 let selection_ranges = (start_row.0..=end_row.0)
2668 .map(DisplayRow)
2669 .filter_map(|row| {
2670 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2671 let start = display_map
2672 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2673 .to_point(display_map);
2674 let end = display_map
2675 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2676 .to_point(display_map);
2677 if reversed {
2678 Some(end..start)
2679 } else {
2680 Some(start..end)
2681 }
2682 } else {
2683 None
2684 }
2685 })
2686 .collect::<Vec<_>>();
2687
2688 self.change_selections(None, cx, |s| {
2689 s.select_ranges(selection_ranges);
2690 });
2691 cx.notify();
2692 }
2693
2694 pub fn has_pending_nonempty_selection(&self) -> bool {
2695 let pending_nonempty_selection = match self.selections.pending_anchor() {
2696 Some(Selection { start, end, .. }) => start != end,
2697 None => false,
2698 };
2699 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2700 }
2701
2702 pub fn has_pending_selection(&self) -> bool {
2703 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2704 }
2705
2706 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2707 self.clear_expanded_diff_hunks(cx);
2708 if self.dismiss_menus_and_popups(true, cx) {
2709 return;
2710 }
2711
2712 if self.mode == EditorMode::Full {
2713 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2714 return;
2715 }
2716 }
2717
2718 cx.propagate();
2719 }
2720
2721 pub fn dismiss_menus_and_popups(
2722 &mut self,
2723 should_report_inline_completion_event: bool,
2724 cx: &mut ViewContext<Self>,
2725 ) -> bool {
2726 if self.take_rename(false, cx).is_some() {
2727 return true;
2728 }
2729
2730 if hide_hover(self, cx) {
2731 return true;
2732 }
2733
2734 if self.hide_context_menu(cx).is_some() {
2735 return true;
2736 }
2737
2738 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2739 return true;
2740 }
2741
2742 if self.snippet_stack.pop().is_some() {
2743 return true;
2744 }
2745
2746 if self.mode == EditorMode::Full {
2747 if self.active_diagnostics.is_some() {
2748 self.dismiss_diagnostics(cx);
2749 return true;
2750 }
2751 }
2752
2753 false
2754 }
2755
2756 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2757 let text: Arc<str> = text.into();
2758
2759 if self.read_only(cx) {
2760 return;
2761 }
2762
2763 let selections = self.selections.all_adjusted(cx);
2764 let mut brace_inserted = false;
2765 let mut edits = Vec::new();
2766 let mut new_selections = Vec::with_capacity(selections.len());
2767 let mut new_autoclose_regions = Vec::new();
2768 let snapshot = self.buffer.read(cx).read(cx);
2769
2770 for (selection, autoclose_region) in
2771 self.selections_with_autoclose_regions(selections, &snapshot)
2772 {
2773 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2774 // Determine if the inserted text matches the opening or closing
2775 // bracket of any of this language's bracket pairs.
2776 let mut bracket_pair = None;
2777 let mut is_bracket_pair_start = false;
2778 let mut is_bracket_pair_end = false;
2779 if !text.is_empty() {
2780 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2781 // and they are removing the character that triggered IME popup.
2782 for (pair, enabled) in scope.brackets() {
2783 if !pair.close {
2784 continue;
2785 }
2786
2787 if enabled && pair.start.ends_with(text.as_ref()) {
2788 bracket_pair = Some(pair.clone());
2789 is_bracket_pair_start = true;
2790 break;
2791 }
2792 if pair.end.as_str() == text.as_ref() {
2793 bracket_pair = Some(pair.clone());
2794 is_bracket_pair_end = true;
2795 break;
2796 }
2797 }
2798 }
2799
2800 if let Some(bracket_pair) = bracket_pair {
2801 if selection.is_empty() {
2802 if is_bracket_pair_start {
2803 let prefix_len = bracket_pair.start.len() - text.len();
2804
2805 // If the inserted text is a suffix of an opening bracket and the
2806 // selection is preceded by the rest of the opening bracket, then
2807 // insert the closing bracket.
2808 let following_text_allows_autoclose = snapshot
2809 .chars_at(selection.start)
2810 .next()
2811 .map_or(true, |c| scope.should_autoclose_before(c));
2812 let preceding_text_matches_prefix = prefix_len == 0
2813 || (selection.start.column >= (prefix_len as u32)
2814 && snapshot.contains_str_at(
2815 Point::new(
2816 selection.start.row,
2817 selection.start.column - (prefix_len as u32),
2818 ),
2819 &bracket_pair.start[..prefix_len],
2820 ));
2821 let autoclose = self.use_autoclose
2822 && snapshot.settings_at(selection.start, cx).use_autoclose;
2823 if autoclose
2824 && following_text_allows_autoclose
2825 && preceding_text_matches_prefix
2826 {
2827 let anchor = snapshot.anchor_before(selection.end);
2828 new_selections.push((selection.map(|_| anchor), text.len()));
2829 new_autoclose_regions.push((
2830 anchor,
2831 text.len(),
2832 selection.id,
2833 bracket_pair.clone(),
2834 ));
2835 edits.push((
2836 selection.range(),
2837 format!("{}{}", text, bracket_pair.end).into(),
2838 ));
2839 brace_inserted = true;
2840 continue;
2841 }
2842 }
2843
2844 if let Some(region) = autoclose_region {
2845 // If the selection is followed by an auto-inserted closing bracket,
2846 // then don't insert that closing bracket again; just move the selection
2847 // past the closing bracket.
2848 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2849 && text.as_ref() == region.pair.end.as_str();
2850 if should_skip {
2851 let anchor = snapshot.anchor_after(selection.end);
2852 new_selections
2853 .push((selection.map(|_| anchor), region.pair.end.len()));
2854 continue;
2855 }
2856 }
2857
2858 let always_treat_brackets_as_autoclosed = snapshot
2859 .settings_at(selection.start, cx)
2860 .always_treat_brackets_as_autoclosed;
2861 if always_treat_brackets_as_autoclosed
2862 && is_bracket_pair_end
2863 && snapshot.contains_str_at(selection.end, text.as_ref())
2864 {
2865 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2866 // and the inserted text is a closing bracket and the selection is followed
2867 // by the closing bracket then move the selection past the closing bracket.
2868 let anchor = snapshot.anchor_after(selection.end);
2869 new_selections.push((selection.map(|_| anchor), text.len()));
2870 continue;
2871 }
2872 }
2873 // If an opening bracket is 1 character long and is typed while
2874 // text is selected, then surround that text with the bracket pair.
2875 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2876 edits.push((selection.start..selection.start, text.clone()));
2877 edits.push((
2878 selection.end..selection.end,
2879 bracket_pair.end.as_str().into(),
2880 ));
2881 brace_inserted = true;
2882 new_selections.push((
2883 Selection {
2884 id: selection.id,
2885 start: snapshot.anchor_after(selection.start),
2886 end: snapshot.anchor_before(selection.end),
2887 reversed: selection.reversed,
2888 goal: selection.goal,
2889 },
2890 0,
2891 ));
2892 continue;
2893 }
2894 }
2895 }
2896
2897 if self.auto_replace_emoji_shortcode
2898 && selection.is_empty()
2899 && text.as_ref().ends_with(':')
2900 {
2901 if let Some(possible_emoji_short_code) =
2902 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2903 {
2904 if !possible_emoji_short_code.is_empty() {
2905 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2906 let emoji_shortcode_start = Point::new(
2907 selection.start.row,
2908 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2909 );
2910
2911 // Remove shortcode from buffer
2912 edits.push((
2913 emoji_shortcode_start..selection.start,
2914 "".to_string().into(),
2915 ));
2916 new_selections.push((
2917 Selection {
2918 id: selection.id,
2919 start: snapshot.anchor_after(emoji_shortcode_start),
2920 end: snapshot.anchor_before(selection.start),
2921 reversed: selection.reversed,
2922 goal: selection.goal,
2923 },
2924 0,
2925 ));
2926
2927 // Insert emoji
2928 let selection_start_anchor = snapshot.anchor_after(selection.start);
2929 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2930 edits.push((selection.start..selection.end, emoji.to_string().into()));
2931
2932 continue;
2933 }
2934 }
2935 }
2936 }
2937
2938 // If not handling any auto-close operation, then just replace the selected
2939 // text with the given input and move the selection to the end of the
2940 // newly inserted text.
2941 let anchor = snapshot.anchor_after(selection.end);
2942 new_selections.push((selection.map(|_| anchor), 0));
2943 edits.push((selection.start..selection.end, text.clone()));
2944 }
2945
2946 drop(snapshot);
2947 self.transact(cx, |this, cx| {
2948 this.buffer.update(cx, |buffer, cx| {
2949 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2950 });
2951
2952 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2953 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2954 let snapshot = this.buffer.read(cx).read(cx);
2955 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2956 .zip(new_selection_deltas)
2957 .map(|(selection, delta)| Selection {
2958 id: selection.id,
2959 start: selection.start + delta,
2960 end: selection.end + delta,
2961 reversed: selection.reversed,
2962 goal: SelectionGoal::None,
2963 })
2964 .collect::<Vec<_>>();
2965
2966 let mut i = 0;
2967 for (position, delta, selection_id, pair) in new_autoclose_regions {
2968 let position = position.to_offset(&snapshot) + delta;
2969 let start = snapshot.anchor_before(position);
2970 let end = snapshot.anchor_after(position);
2971 while let Some(existing_state) = this.autoclose_regions.get(i) {
2972 match existing_state.range.start.cmp(&start, &snapshot) {
2973 Ordering::Less => i += 1,
2974 Ordering::Greater => break,
2975 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2976 Ordering::Less => i += 1,
2977 Ordering::Equal => break,
2978 Ordering::Greater => break,
2979 },
2980 }
2981 }
2982 this.autoclose_regions.insert(
2983 i,
2984 AutocloseRegion {
2985 selection_id,
2986 range: start..end,
2987 pair,
2988 },
2989 );
2990 }
2991
2992 drop(snapshot);
2993 let had_active_inline_completion = this.has_active_inline_completion(cx);
2994 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2995 s.select(new_selections)
2996 });
2997
2998 if brace_inserted {
2999 // If we inserted a brace while composing text (i.e. typing `"` on a
3000 // Brazilian keyboard), exit the composing state because most likely
3001 // the user wanted to surround the selection.
3002 this.unmark_text(cx);
3003 } else if EditorSettings::get_global(cx).use_on_type_format {
3004 if let Some(on_type_format_task) =
3005 this.trigger_on_type_formatting(text.to_string(), cx)
3006 {
3007 on_type_format_task.detach_and_log_err(cx);
3008 }
3009 }
3010
3011 let trigger_in_words = !had_active_inline_completion;
3012 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3013 this.refresh_inline_completion(true, cx);
3014 });
3015 }
3016
3017 fn find_possible_emoji_shortcode_at_position(
3018 snapshot: &MultiBufferSnapshot,
3019 position: Point,
3020 ) -> Option<String> {
3021 let mut chars = Vec::new();
3022 let mut found_colon = false;
3023 for char in snapshot.reversed_chars_at(position).take(100) {
3024 // Found a possible emoji shortcode in the middle of the buffer
3025 if found_colon {
3026 if char.is_whitespace() {
3027 chars.reverse();
3028 return Some(chars.iter().collect());
3029 }
3030 // If the previous character is not a whitespace, we are in the middle of a word
3031 // and we only want to complete the shortcode if the word is made up of other emojis
3032 let mut containing_word = String::new();
3033 for ch in snapshot
3034 .reversed_chars_at(position)
3035 .skip(chars.len() + 1)
3036 .take(100)
3037 {
3038 if ch.is_whitespace() {
3039 break;
3040 }
3041 containing_word.push(ch);
3042 }
3043 let containing_word = containing_word.chars().rev().collect::<String>();
3044 if util::word_consists_of_emojis(containing_word.as_str()) {
3045 chars.reverse();
3046 return Some(chars.iter().collect());
3047 }
3048 }
3049
3050 if char.is_whitespace() || !char.is_ascii() {
3051 return None;
3052 }
3053 if char == ':' {
3054 found_colon = true;
3055 } else {
3056 chars.push(char);
3057 }
3058 }
3059 // Found a possible emoji shortcode at the beginning of the buffer
3060 chars.reverse();
3061 Some(chars.iter().collect())
3062 }
3063
3064 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3065 self.transact(cx, |this, cx| {
3066 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3067 let selections = this.selections.all::<usize>(cx);
3068 let multi_buffer = this.buffer.read(cx);
3069 let buffer = multi_buffer.snapshot(cx);
3070 selections
3071 .iter()
3072 .map(|selection| {
3073 let start_point = selection.start.to_point(&buffer);
3074 let mut indent =
3075 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3076 indent.len = cmp::min(indent.len, start_point.column);
3077 let start = selection.start;
3078 let end = selection.end;
3079 let selection_is_empty = start == end;
3080 let language_scope = buffer.language_scope_at(start);
3081 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3082 &language_scope
3083 {
3084 let leading_whitespace_len = buffer
3085 .reversed_chars_at(start)
3086 .take_while(|c| c.is_whitespace() && *c != '\n')
3087 .map(|c| c.len_utf8())
3088 .sum::<usize>();
3089
3090 let trailing_whitespace_len = buffer
3091 .chars_at(end)
3092 .take_while(|c| c.is_whitespace() && *c != '\n')
3093 .map(|c| c.len_utf8())
3094 .sum::<usize>();
3095
3096 let insert_extra_newline =
3097 language.brackets().any(|(pair, enabled)| {
3098 let pair_start = pair.start.trim_end();
3099 let pair_end = pair.end.trim_start();
3100
3101 enabled
3102 && pair.newline
3103 && buffer.contains_str_at(
3104 end + trailing_whitespace_len,
3105 pair_end,
3106 )
3107 && buffer.contains_str_at(
3108 (start - leading_whitespace_len)
3109 .saturating_sub(pair_start.len()),
3110 pair_start,
3111 )
3112 });
3113
3114 // Comment extension on newline is allowed only for cursor selections
3115 let comment_delimiter = maybe!({
3116 if !selection_is_empty {
3117 return None;
3118 }
3119
3120 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3121 return None;
3122 }
3123
3124 let delimiters = language.line_comment_prefixes();
3125 let max_len_of_delimiter =
3126 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3127 let (snapshot, range) =
3128 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3129
3130 let mut index_of_first_non_whitespace = 0;
3131 let comment_candidate = snapshot
3132 .chars_for_range(range)
3133 .skip_while(|c| {
3134 let should_skip = c.is_whitespace();
3135 if should_skip {
3136 index_of_first_non_whitespace += 1;
3137 }
3138 should_skip
3139 })
3140 .take(max_len_of_delimiter)
3141 .collect::<String>();
3142 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3143 comment_candidate.starts_with(comment_prefix.as_ref())
3144 })?;
3145 let cursor_is_placed_after_comment_marker =
3146 index_of_first_non_whitespace + comment_prefix.len()
3147 <= start_point.column as usize;
3148 if cursor_is_placed_after_comment_marker {
3149 Some(comment_prefix.clone())
3150 } else {
3151 None
3152 }
3153 });
3154 (comment_delimiter, insert_extra_newline)
3155 } else {
3156 (None, false)
3157 };
3158
3159 let capacity_for_delimiter = comment_delimiter
3160 .as_deref()
3161 .map(str::len)
3162 .unwrap_or_default();
3163 let mut new_text =
3164 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3165 new_text.push_str("\n");
3166 new_text.extend(indent.chars());
3167 if let Some(delimiter) = &comment_delimiter {
3168 new_text.push_str(&delimiter);
3169 }
3170 if insert_extra_newline {
3171 new_text = new_text.repeat(2);
3172 }
3173
3174 let anchor = buffer.anchor_after(end);
3175 let new_selection = selection.map(|_| anchor);
3176 (
3177 (start..end, new_text),
3178 (insert_extra_newline, new_selection),
3179 )
3180 })
3181 .unzip()
3182 };
3183
3184 this.edit_with_autoindent(edits, cx);
3185 let buffer = this.buffer.read(cx).snapshot(cx);
3186 let new_selections = selection_fixup_info
3187 .into_iter()
3188 .map(|(extra_newline_inserted, new_selection)| {
3189 let mut cursor = new_selection.end.to_point(&buffer);
3190 if extra_newline_inserted {
3191 cursor.row -= 1;
3192 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3193 }
3194 new_selection.map(|_| cursor)
3195 })
3196 .collect();
3197
3198 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3199 this.refresh_inline_completion(true, cx);
3200 });
3201 }
3202
3203 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3204 let buffer = self.buffer.read(cx);
3205 let snapshot = buffer.snapshot(cx);
3206
3207 let mut edits = Vec::new();
3208 let mut rows = Vec::new();
3209
3210 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3211 let cursor = selection.head();
3212 let row = cursor.row;
3213
3214 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3215
3216 let newline = "\n".to_string();
3217 edits.push((start_of_line..start_of_line, newline));
3218
3219 rows.push(row + rows_inserted as u32);
3220 }
3221
3222 self.transact(cx, |editor, cx| {
3223 editor.edit(edits, cx);
3224
3225 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3226 let mut index = 0;
3227 s.move_cursors_with(|map, _, _| {
3228 let row = rows[index];
3229 index += 1;
3230
3231 let point = Point::new(row, 0);
3232 let boundary = map.next_line_boundary(point).1;
3233 let clipped = map.clip_point(boundary, Bias::Left);
3234
3235 (clipped, SelectionGoal::None)
3236 });
3237 });
3238
3239 let mut indent_edits = Vec::new();
3240 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3241 for row in rows {
3242 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3243 for (row, indent) in indents {
3244 if indent.len == 0 {
3245 continue;
3246 }
3247
3248 let text = match indent.kind {
3249 IndentKind::Space => " ".repeat(indent.len as usize),
3250 IndentKind::Tab => "\t".repeat(indent.len as usize),
3251 };
3252 let point = Point::new(row.0, 0);
3253 indent_edits.push((point..point, text));
3254 }
3255 }
3256 editor.edit(indent_edits, cx);
3257 });
3258 }
3259
3260 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3261 let buffer = self.buffer.read(cx);
3262 let snapshot = buffer.snapshot(cx);
3263
3264 let mut edits = Vec::new();
3265 let mut rows = Vec::new();
3266 let mut rows_inserted = 0;
3267
3268 for selection in self.selections.all_adjusted(cx) {
3269 let cursor = selection.head();
3270 let row = cursor.row;
3271
3272 let point = Point::new(row + 1, 0);
3273 let start_of_line = snapshot.clip_point(point, Bias::Left);
3274
3275 let newline = "\n".to_string();
3276 edits.push((start_of_line..start_of_line, newline));
3277
3278 rows_inserted += 1;
3279 rows.push(row + rows_inserted);
3280 }
3281
3282 self.transact(cx, |editor, cx| {
3283 editor.edit(edits, cx);
3284
3285 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3286 let mut index = 0;
3287 s.move_cursors_with(|map, _, _| {
3288 let row = rows[index];
3289 index += 1;
3290
3291 let point = Point::new(row, 0);
3292 let boundary = map.next_line_boundary(point).1;
3293 let clipped = map.clip_point(boundary, Bias::Left);
3294
3295 (clipped, SelectionGoal::None)
3296 });
3297 });
3298
3299 let mut indent_edits = Vec::new();
3300 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3301 for row in rows {
3302 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3303 for (row, indent) in indents {
3304 if indent.len == 0 {
3305 continue;
3306 }
3307
3308 let text = match indent.kind {
3309 IndentKind::Space => " ".repeat(indent.len as usize),
3310 IndentKind::Tab => "\t".repeat(indent.len as usize),
3311 };
3312 let point = Point::new(row.0, 0);
3313 indent_edits.push((point..point, text));
3314 }
3315 }
3316 editor.edit(indent_edits, cx);
3317 });
3318 }
3319
3320 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3321 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3322 original_indent_columns: Vec::new(),
3323 });
3324 self.insert_with_autoindent_mode(text, autoindent, cx);
3325 }
3326
3327 fn insert_with_autoindent_mode(
3328 &mut self,
3329 text: &str,
3330 autoindent_mode: Option<AutoindentMode>,
3331 cx: &mut ViewContext<Self>,
3332 ) {
3333 if self.read_only(cx) {
3334 return;
3335 }
3336
3337 let text: Arc<str> = text.into();
3338 self.transact(cx, |this, cx| {
3339 let old_selections = this.selections.all_adjusted(cx);
3340 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3341 let anchors = {
3342 let snapshot = buffer.read(cx);
3343 old_selections
3344 .iter()
3345 .map(|s| {
3346 let anchor = snapshot.anchor_after(s.head());
3347 s.map(|_| anchor)
3348 })
3349 .collect::<Vec<_>>()
3350 };
3351 buffer.edit(
3352 old_selections
3353 .iter()
3354 .map(|s| (s.start..s.end, text.clone())),
3355 autoindent_mode,
3356 cx,
3357 );
3358 anchors
3359 });
3360
3361 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3362 s.select_anchors(selection_anchors);
3363 })
3364 });
3365 }
3366
3367 fn trigger_completion_on_input(
3368 &mut self,
3369 text: &str,
3370 trigger_in_words: bool,
3371 cx: &mut ViewContext<Self>,
3372 ) {
3373 if self.is_completion_trigger(text, trigger_in_words, cx) {
3374 self.show_completions(&ShowCompletions, cx);
3375 } else {
3376 self.hide_context_menu(cx);
3377 }
3378 }
3379
3380 fn is_completion_trigger(
3381 &self,
3382 text: &str,
3383 trigger_in_words: bool,
3384 cx: &mut ViewContext<Self>,
3385 ) -> bool {
3386 let position = self.selections.newest_anchor().head();
3387 let multibuffer = self.buffer.read(cx);
3388 let Some(buffer) = position
3389 .buffer_id
3390 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3391 else {
3392 return false;
3393 };
3394
3395 if let Some(completion_provider) = &self.completion_provider {
3396 completion_provider.is_completion_trigger(
3397 &buffer,
3398 position.text_anchor,
3399 text,
3400 trigger_in_words,
3401 cx,
3402 )
3403 } else {
3404 false
3405 }
3406 }
3407
3408 /// If any empty selections is touching the start of its innermost containing autoclose
3409 /// region, expand it to select the brackets.
3410 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3411 let selections = self.selections.all::<usize>(cx);
3412 let buffer = self.buffer.read(cx).read(cx);
3413 let new_selections = self
3414 .selections_with_autoclose_regions(selections, &buffer)
3415 .map(|(mut selection, region)| {
3416 if !selection.is_empty() {
3417 return selection;
3418 }
3419
3420 if let Some(region) = region {
3421 let mut range = region.range.to_offset(&buffer);
3422 if selection.start == range.start && range.start >= region.pair.start.len() {
3423 range.start -= region.pair.start.len();
3424 if buffer.contains_str_at(range.start, ®ion.pair.start)
3425 && buffer.contains_str_at(range.end, ®ion.pair.end)
3426 {
3427 range.end += region.pair.end.len();
3428 selection.start = range.start;
3429 selection.end = range.end;
3430
3431 return selection;
3432 }
3433 }
3434 }
3435
3436 let always_treat_brackets_as_autoclosed = buffer
3437 .settings_at(selection.start, cx)
3438 .always_treat_brackets_as_autoclosed;
3439
3440 if !always_treat_brackets_as_autoclosed {
3441 return selection;
3442 }
3443
3444 if let Some(scope) = buffer.language_scope_at(selection.start) {
3445 for (pair, enabled) in scope.brackets() {
3446 if !enabled || !pair.close {
3447 continue;
3448 }
3449
3450 if buffer.contains_str_at(selection.start, &pair.end) {
3451 let pair_start_len = pair.start.len();
3452 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3453 {
3454 selection.start -= pair_start_len;
3455 selection.end += pair.end.len();
3456
3457 return selection;
3458 }
3459 }
3460 }
3461 }
3462
3463 selection
3464 })
3465 .collect();
3466
3467 drop(buffer);
3468 self.change_selections(None, cx, |selections| selections.select(new_selections));
3469 }
3470
3471 /// Iterate the given selections, and for each one, find the smallest surrounding
3472 /// autoclose region. This uses the ordering of the selections and the autoclose
3473 /// regions to avoid repeated comparisons.
3474 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3475 &'a self,
3476 selections: impl IntoIterator<Item = Selection<D>>,
3477 buffer: &'a MultiBufferSnapshot,
3478 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3479 let mut i = 0;
3480 let mut regions = self.autoclose_regions.as_slice();
3481 selections.into_iter().map(move |selection| {
3482 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3483
3484 let mut enclosing = None;
3485 while let Some(pair_state) = regions.get(i) {
3486 if pair_state.range.end.to_offset(buffer) < range.start {
3487 regions = ®ions[i + 1..];
3488 i = 0;
3489 } else if pair_state.range.start.to_offset(buffer) > range.end {
3490 break;
3491 } else {
3492 if pair_state.selection_id == selection.id {
3493 enclosing = Some(pair_state);
3494 }
3495 i += 1;
3496 }
3497 }
3498
3499 (selection.clone(), enclosing)
3500 })
3501 }
3502
3503 /// Remove any autoclose regions that no longer contain their selection.
3504 fn invalidate_autoclose_regions(
3505 &mut self,
3506 mut selections: &[Selection<Anchor>],
3507 buffer: &MultiBufferSnapshot,
3508 ) {
3509 self.autoclose_regions.retain(|state| {
3510 let mut i = 0;
3511 while let Some(selection) = selections.get(i) {
3512 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3513 selections = &selections[1..];
3514 continue;
3515 }
3516 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3517 break;
3518 }
3519 if selection.id == state.selection_id {
3520 return true;
3521 } else {
3522 i += 1;
3523 }
3524 }
3525 false
3526 });
3527 }
3528
3529 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3530 let offset = position.to_offset(buffer);
3531 let (word_range, kind) = buffer.surrounding_word(offset);
3532 if offset > word_range.start && kind == Some(CharKind::Word) {
3533 Some(
3534 buffer
3535 .text_for_range(word_range.start..offset)
3536 .collect::<String>(),
3537 )
3538 } else {
3539 None
3540 }
3541 }
3542
3543 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3544 self.refresh_inlay_hints(
3545 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3546 cx,
3547 );
3548 }
3549
3550 pub fn inlay_hints_enabled(&self) -> bool {
3551 self.inlay_hint_cache.enabled
3552 }
3553
3554 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3555 if self.project.is_none() || self.mode != EditorMode::Full {
3556 return;
3557 }
3558
3559 let reason_description = reason.description();
3560 let ignore_debounce = matches!(
3561 reason,
3562 InlayHintRefreshReason::SettingsChange(_)
3563 | InlayHintRefreshReason::Toggle(_)
3564 | InlayHintRefreshReason::ExcerptsRemoved(_)
3565 );
3566 let (invalidate_cache, required_languages) = match reason {
3567 InlayHintRefreshReason::Toggle(enabled) => {
3568 self.inlay_hint_cache.enabled = enabled;
3569 if enabled {
3570 (InvalidationStrategy::RefreshRequested, None)
3571 } else {
3572 self.inlay_hint_cache.clear();
3573 self.splice_inlays(
3574 self.visible_inlay_hints(cx)
3575 .iter()
3576 .map(|inlay| inlay.id)
3577 .collect(),
3578 Vec::new(),
3579 cx,
3580 );
3581 return;
3582 }
3583 }
3584 InlayHintRefreshReason::SettingsChange(new_settings) => {
3585 match self.inlay_hint_cache.update_settings(
3586 &self.buffer,
3587 new_settings,
3588 self.visible_inlay_hints(cx),
3589 cx,
3590 ) {
3591 ControlFlow::Break(Some(InlaySplice {
3592 to_remove,
3593 to_insert,
3594 })) => {
3595 self.splice_inlays(to_remove, to_insert, cx);
3596 return;
3597 }
3598 ControlFlow::Break(None) => return,
3599 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3600 }
3601 }
3602 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3603 if let Some(InlaySplice {
3604 to_remove,
3605 to_insert,
3606 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3607 {
3608 self.splice_inlays(to_remove, to_insert, cx);
3609 }
3610 return;
3611 }
3612 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3613 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3614 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3615 }
3616 InlayHintRefreshReason::RefreshRequested => {
3617 (InvalidationStrategy::RefreshRequested, None)
3618 }
3619 };
3620
3621 if let Some(InlaySplice {
3622 to_remove,
3623 to_insert,
3624 }) = self.inlay_hint_cache.spawn_hint_refresh(
3625 reason_description,
3626 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3627 invalidate_cache,
3628 ignore_debounce,
3629 cx,
3630 ) {
3631 self.splice_inlays(to_remove, to_insert, cx);
3632 }
3633 }
3634
3635 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3636 self.display_map
3637 .read(cx)
3638 .current_inlays()
3639 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3640 .cloned()
3641 .collect()
3642 }
3643
3644 pub fn excerpts_for_inlay_hints_query(
3645 &self,
3646 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3647 cx: &mut ViewContext<Editor>,
3648 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3649 let Some(project) = self.project.as_ref() else {
3650 return HashMap::default();
3651 };
3652 let project = project.read(cx);
3653 let multi_buffer = self.buffer().read(cx);
3654 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3655 let multi_buffer_visible_start = self
3656 .scroll_manager
3657 .anchor()
3658 .anchor
3659 .to_point(&multi_buffer_snapshot);
3660 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3661 multi_buffer_visible_start
3662 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3663 Bias::Left,
3664 );
3665 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3666 multi_buffer
3667 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3668 .into_iter()
3669 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3670 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3671 let buffer = buffer_handle.read(cx);
3672 let buffer_file = project::File::from_dyn(buffer.file())?;
3673 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3674 let worktree_entry = buffer_worktree
3675 .read(cx)
3676 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3677 if worktree_entry.is_ignored {
3678 return None;
3679 }
3680
3681 let language = buffer.language()?;
3682 if let Some(restrict_to_languages) = restrict_to_languages {
3683 if !restrict_to_languages.contains(language) {
3684 return None;
3685 }
3686 }
3687 Some((
3688 excerpt_id,
3689 (
3690 buffer_handle,
3691 buffer.version().clone(),
3692 excerpt_visible_range,
3693 ),
3694 ))
3695 })
3696 .collect()
3697 }
3698
3699 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3700 TextLayoutDetails {
3701 text_system: cx.text_system().clone(),
3702 editor_style: self.style.clone().unwrap(),
3703 rem_size: cx.rem_size(),
3704 scroll_anchor: self.scroll_manager.anchor(),
3705 visible_rows: self.visible_line_count(),
3706 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3707 }
3708 }
3709
3710 fn splice_inlays(
3711 &self,
3712 to_remove: Vec<InlayId>,
3713 to_insert: Vec<Inlay>,
3714 cx: &mut ViewContext<Self>,
3715 ) {
3716 self.display_map.update(cx, |display_map, cx| {
3717 display_map.splice_inlays(to_remove, to_insert, cx);
3718 });
3719 cx.notify();
3720 }
3721
3722 fn trigger_on_type_formatting(
3723 &self,
3724 input: String,
3725 cx: &mut ViewContext<Self>,
3726 ) -> Option<Task<Result<()>>> {
3727 if input.len() != 1 {
3728 return None;
3729 }
3730
3731 let project = self.project.as_ref()?;
3732 let position = self.selections.newest_anchor().head();
3733 let (buffer, buffer_position) = self
3734 .buffer
3735 .read(cx)
3736 .text_anchor_for_position(position, cx)?;
3737
3738 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3739 // hence we do LSP request & edit on host side only — add formats to host's history.
3740 let push_to_lsp_host_history = true;
3741 // If this is not the host, append its history with new edits.
3742 let push_to_client_history = project.read(cx).is_remote();
3743
3744 let on_type_formatting = project.update(cx, |project, cx| {
3745 project.on_type_format(
3746 buffer.clone(),
3747 buffer_position,
3748 input,
3749 push_to_lsp_host_history,
3750 cx,
3751 )
3752 });
3753 Some(cx.spawn(|editor, mut cx| async move {
3754 if let Some(transaction) = on_type_formatting.await? {
3755 if push_to_client_history {
3756 buffer
3757 .update(&mut cx, |buffer, _| {
3758 buffer.push_transaction(transaction, Instant::now());
3759 })
3760 .ok();
3761 }
3762 editor.update(&mut cx, |editor, cx| {
3763 editor.refresh_document_highlights(cx);
3764 })?;
3765 }
3766 Ok(())
3767 }))
3768 }
3769
3770 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3771 if self.pending_rename.is_some() {
3772 return;
3773 }
3774
3775 let Some(provider) = self.completion_provider.as_ref() else {
3776 return;
3777 };
3778
3779 let position = self.selections.newest_anchor().head();
3780 let (buffer, buffer_position) =
3781 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3782 output
3783 } else {
3784 return;
3785 };
3786
3787 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3788 let completions = provider.completions(&buffer, buffer_position, cx);
3789
3790 let id = post_inc(&mut self.next_completion_id);
3791 let task = cx.spawn(|this, mut cx| {
3792 async move {
3793 let completions = completions.await.log_err();
3794 let menu = if let Some(completions) = completions {
3795 let mut menu = CompletionsMenu {
3796 id,
3797 initial_position: position,
3798 match_candidates: completions
3799 .iter()
3800 .enumerate()
3801 .map(|(id, completion)| {
3802 StringMatchCandidate::new(
3803 id,
3804 completion.label.text[completion.label.filter_range.clone()]
3805 .into(),
3806 )
3807 })
3808 .collect(),
3809 buffer: buffer.clone(),
3810 completions: Arc::new(RwLock::new(completions.into())),
3811 matches: Vec::new().into(),
3812 selected_item: 0,
3813 scroll_handle: UniformListScrollHandle::new(),
3814 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3815 DebouncedDelay::new(),
3816 )),
3817 };
3818 menu.filter(query.as_deref(), cx.background_executor().clone())
3819 .await;
3820
3821 if menu.matches.is_empty() {
3822 None
3823 } else {
3824 this.update(&mut cx, |editor, cx| {
3825 let completions = menu.completions.clone();
3826 let matches = menu.matches.clone();
3827
3828 let delay_ms = EditorSettings::get_global(cx)
3829 .completion_documentation_secondary_query_debounce;
3830 let delay = Duration::from_millis(delay_ms);
3831
3832 editor
3833 .completion_documentation_pre_resolve_debounce
3834 .fire_new(delay, cx, |editor, cx| {
3835 CompletionsMenu::pre_resolve_completion_documentation(
3836 buffer,
3837 completions,
3838 matches,
3839 editor,
3840 cx,
3841 )
3842 });
3843 })
3844 .ok();
3845 Some(menu)
3846 }
3847 } else {
3848 None
3849 };
3850
3851 this.update(&mut cx, |this, cx| {
3852 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3853
3854 let mut context_menu = this.context_menu.write();
3855 match context_menu.as_ref() {
3856 None => {}
3857
3858 Some(ContextMenu::Completions(prev_menu)) => {
3859 if prev_menu.id > id {
3860 return;
3861 }
3862 }
3863
3864 _ => return,
3865 }
3866
3867 if this.focus_handle.is_focused(cx) && menu.is_some() {
3868 let menu = menu.unwrap();
3869 *context_menu = Some(ContextMenu::Completions(menu));
3870 drop(context_menu);
3871 this.discard_inline_completion(false, cx);
3872 cx.notify();
3873 } else if this.completion_tasks.len() <= 1 {
3874 // If there are no more completion tasks and the last menu was
3875 // empty, we should hide it. If it was already hidden, we should
3876 // also show the copilot completion when available.
3877 drop(context_menu);
3878 if this.hide_context_menu(cx).is_none() {
3879 this.update_visible_inline_completion(cx);
3880 }
3881 }
3882 })?;
3883
3884 Ok::<_, anyhow::Error>(())
3885 }
3886 .log_err()
3887 });
3888
3889 self.completion_tasks.push((id, task));
3890 }
3891
3892 pub fn confirm_completion(
3893 &mut self,
3894 action: &ConfirmCompletion,
3895 cx: &mut ViewContext<Self>,
3896 ) -> Option<Task<Result<()>>> {
3897 use language::ToOffset as _;
3898
3899 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3900 menu
3901 } else {
3902 return None;
3903 };
3904
3905 let mat = completions_menu
3906 .matches
3907 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3908 let buffer_handle = completions_menu.buffer;
3909 let completions = completions_menu.completions.read();
3910 let completion = completions.get(mat.candidate_id)?;
3911 cx.stop_propagation();
3912
3913 let snippet;
3914 let text;
3915
3916 if completion.is_snippet() {
3917 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3918 text = snippet.as_ref().unwrap().text.clone();
3919 } else {
3920 snippet = None;
3921 text = completion.new_text.clone();
3922 };
3923 let selections = self.selections.all::<usize>(cx);
3924 let buffer = buffer_handle.read(cx);
3925 let old_range = completion.old_range.to_offset(buffer);
3926 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3927
3928 let newest_selection = self.selections.newest_anchor();
3929 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3930 return None;
3931 }
3932
3933 let lookbehind = newest_selection
3934 .start
3935 .text_anchor
3936 .to_offset(buffer)
3937 .saturating_sub(old_range.start);
3938 let lookahead = old_range
3939 .end
3940 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3941 let mut common_prefix_len = old_text
3942 .bytes()
3943 .zip(text.bytes())
3944 .take_while(|(a, b)| a == b)
3945 .count();
3946
3947 let snapshot = self.buffer.read(cx).snapshot(cx);
3948 let mut range_to_replace: Option<Range<isize>> = None;
3949 let mut ranges = Vec::new();
3950 for selection in &selections {
3951 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3952 let start = selection.start.saturating_sub(lookbehind);
3953 let end = selection.end + lookahead;
3954 if selection.id == newest_selection.id {
3955 range_to_replace = Some(
3956 ((start + common_prefix_len) as isize - selection.start as isize)
3957 ..(end as isize - selection.start as isize),
3958 );
3959 }
3960 ranges.push(start + common_prefix_len..end);
3961 } else {
3962 common_prefix_len = 0;
3963 ranges.clear();
3964 ranges.extend(selections.iter().map(|s| {
3965 if s.id == newest_selection.id {
3966 range_to_replace = Some(
3967 old_range.start.to_offset_utf16(&snapshot).0 as isize
3968 - selection.start as isize
3969 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3970 - selection.start as isize,
3971 );
3972 old_range.clone()
3973 } else {
3974 s.start..s.end
3975 }
3976 }));
3977 break;
3978 }
3979 }
3980 let text = &text[common_prefix_len..];
3981
3982 cx.emit(EditorEvent::InputHandled {
3983 utf16_range_to_replace: range_to_replace,
3984 text: text.into(),
3985 });
3986
3987 self.transact(cx, |this, cx| {
3988 if let Some(mut snippet) = snippet {
3989 snippet.text = text.to_string();
3990 for tabstop in snippet.tabstops.iter_mut().flatten() {
3991 tabstop.start -= common_prefix_len as isize;
3992 tabstop.end -= common_prefix_len as isize;
3993 }
3994
3995 this.insert_snippet(&ranges, snippet, cx).log_err();
3996 } else {
3997 this.buffer.update(cx, |buffer, cx| {
3998 buffer.edit(
3999 ranges.iter().map(|range| (range.clone(), text)),
4000 this.autoindent_mode.clone(),
4001 cx,
4002 );
4003 });
4004 }
4005
4006 this.refresh_inline_completion(true, cx);
4007 });
4008
4009 if let Some(confirm) = completion.confirm.as_ref() {
4010 (confirm)(cx);
4011 }
4012
4013 if completion.show_new_completions_on_confirm {
4014 self.show_completions(&ShowCompletions, cx);
4015 }
4016
4017 let provider = self.completion_provider.as_ref()?;
4018 let apply_edits = provider.apply_additional_edits_for_completion(
4019 buffer_handle,
4020 completion.clone(),
4021 true,
4022 cx,
4023 );
4024 Some(cx.foreground_executor().spawn(async move {
4025 apply_edits.await?;
4026 Ok(())
4027 }))
4028 }
4029
4030 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4031 let mut context_menu = self.context_menu.write();
4032 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4033 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4034 // Toggle if we're selecting the same one
4035 *context_menu = None;
4036 cx.notify();
4037 return;
4038 } else {
4039 // Otherwise, clear it and start a new one
4040 *context_menu = None;
4041 cx.notify();
4042 }
4043 }
4044 drop(context_menu);
4045 let snapshot = self.snapshot(cx);
4046 let deployed_from_indicator = action.deployed_from_indicator;
4047 let mut task = self.code_actions_task.take();
4048 let action = action.clone();
4049 cx.spawn(|editor, mut cx| async move {
4050 while let Some(prev_task) = task {
4051 prev_task.await;
4052 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4053 }
4054
4055 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4056 if editor.focus_handle.is_focused(cx) {
4057 let multibuffer_point = action
4058 .deployed_from_indicator
4059 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4060 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4061 let (buffer, buffer_row) = snapshot
4062 .buffer_snapshot
4063 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4064 .and_then(|(buffer_snapshot, range)| {
4065 editor
4066 .buffer
4067 .read(cx)
4068 .buffer(buffer_snapshot.remote_id())
4069 .map(|buffer| (buffer, range.start.row))
4070 })?;
4071 let (_, code_actions) = editor
4072 .available_code_actions
4073 .clone()
4074 .and_then(|(location, code_actions)| {
4075 let snapshot = location.buffer.read(cx).snapshot();
4076 let point_range = location.range.to_point(&snapshot);
4077 let point_range = point_range.start.row..=point_range.end.row;
4078 if point_range.contains(&buffer_row) {
4079 Some((location, code_actions))
4080 } else {
4081 None
4082 }
4083 })
4084 .unzip();
4085 let buffer_id = buffer.read(cx).remote_id();
4086 let tasks = editor
4087 .tasks
4088 .get(&(buffer_id, buffer_row))
4089 .map(|t| Arc::new(t.to_owned()));
4090 if tasks.is_none() && code_actions.is_none() {
4091 return None;
4092 }
4093
4094 editor.completion_tasks.clear();
4095 editor.discard_inline_completion(false, cx);
4096 let task_context =
4097 tasks
4098 .as_ref()
4099 .zip(editor.project.clone())
4100 .map(|(tasks, project)| {
4101 let position = Point::new(buffer_row, tasks.column);
4102 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4103 let location = Location {
4104 buffer: buffer.clone(),
4105 range: range_start..range_start,
4106 };
4107 // Fill in the environmental variables from the tree-sitter captures
4108 let mut captured_task_variables = TaskVariables::default();
4109 for (capture_name, value) in tasks.extra_variables.clone() {
4110 captured_task_variables.insert(
4111 task::VariableName::Custom(capture_name.into()),
4112 value.clone(),
4113 );
4114 }
4115 project.update(cx, |project, cx| {
4116 project.task_context_for_location(
4117 captured_task_variables,
4118 location,
4119 cx,
4120 )
4121 })
4122 });
4123
4124 Some(cx.spawn(|editor, mut cx| async move {
4125 let task_context = match task_context {
4126 Some(task_context) => task_context.await,
4127 None => None,
4128 };
4129 let resolved_tasks =
4130 tasks.zip(task_context).map(|(tasks, task_context)| {
4131 Arc::new(ResolvedTasks {
4132 templates: tasks
4133 .templates
4134 .iter()
4135 .filter_map(|(kind, template)| {
4136 template
4137 .resolve_task(&kind.to_id_base(), &task_context)
4138 .map(|task| (kind.clone(), task))
4139 })
4140 .collect(),
4141 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4142 multibuffer_point.row,
4143 tasks.column,
4144 )),
4145 })
4146 });
4147 let spawn_straight_away = resolved_tasks
4148 .as_ref()
4149 .map_or(false, |tasks| tasks.templates.len() == 1)
4150 && code_actions
4151 .as_ref()
4152 .map_or(true, |actions| actions.is_empty());
4153 if let Some(task) = editor
4154 .update(&mut cx, |editor, cx| {
4155 *editor.context_menu.write() =
4156 Some(ContextMenu::CodeActions(CodeActionsMenu {
4157 buffer,
4158 actions: CodeActionContents {
4159 tasks: resolved_tasks,
4160 actions: code_actions,
4161 },
4162 selected_item: Default::default(),
4163 scroll_handle: UniformListScrollHandle::default(),
4164 deployed_from_indicator,
4165 }));
4166 if spawn_straight_away {
4167 if let Some(task) = editor.confirm_code_action(
4168 &ConfirmCodeAction { item_ix: Some(0) },
4169 cx,
4170 ) {
4171 cx.notify();
4172 return task;
4173 }
4174 }
4175 cx.notify();
4176 Task::ready(Ok(()))
4177 })
4178 .ok()
4179 {
4180 task.await
4181 } else {
4182 Ok(())
4183 }
4184 }))
4185 } else {
4186 Some(Task::ready(Ok(())))
4187 }
4188 })?;
4189 if let Some(task) = spawned_test_task {
4190 task.await?;
4191 }
4192
4193 Ok::<_, anyhow::Error>(())
4194 })
4195 .detach_and_log_err(cx);
4196 }
4197
4198 pub fn confirm_code_action(
4199 &mut self,
4200 action: &ConfirmCodeAction,
4201 cx: &mut ViewContext<Self>,
4202 ) -> Option<Task<Result<()>>> {
4203 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4204 menu
4205 } else {
4206 return None;
4207 };
4208 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4209 let action = actions_menu.actions.get(action_ix)?;
4210 let title = action.label();
4211 let buffer = actions_menu.buffer;
4212 let workspace = self.workspace()?;
4213
4214 match action {
4215 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4216 workspace.update(cx, |workspace, cx| {
4217 workspace::tasks::schedule_resolved_task(
4218 workspace,
4219 task_source_kind,
4220 resolved_task,
4221 false,
4222 cx,
4223 );
4224
4225 Some(Task::ready(Ok(())))
4226 })
4227 }
4228 CodeActionsItem::CodeAction(action) => {
4229 let apply_code_actions = workspace
4230 .read(cx)
4231 .project()
4232 .clone()
4233 .update(cx, |project, cx| {
4234 project.apply_code_action(buffer, action, true, cx)
4235 });
4236 let workspace = workspace.downgrade();
4237 Some(cx.spawn(|editor, cx| async move {
4238 let project_transaction = apply_code_actions.await?;
4239 Self::open_project_transaction(
4240 &editor,
4241 workspace,
4242 project_transaction,
4243 title,
4244 cx,
4245 )
4246 .await
4247 }))
4248 }
4249 }
4250 }
4251
4252 pub async fn open_project_transaction(
4253 this: &WeakView<Editor>,
4254 workspace: WeakView<Workspace>,
4255 transaction: ProjectTransaction,
4256 title: String,
4257 mut cx: AsyncWindowContext,
4258 ) -> Result<()> {
4259 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4260
4261 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4262 cx.update(|cx| {
4263 entries.sort_unstable_by_key(|(buffer, _)| {
4264 buffer.read(cx).file().map(|f| f.path().clone())
4265 });
4266 })?;
4267
4268 // If the project transaction's edits are all contained within this editor, then
4269 // avoid opening a new editor to display them.
4270
4271 if let Some((buffer, transaction)) = entries.first() {
4272 if entries.len() == 1 {
4273 let excerpt = this.update(&mut cx, |editor, cx| {
4274 editor
4275 .buffer()
4276 .read(cx)
4277 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4278 })?;
4279 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4280 if excerpted_buffer == *buffer {
4281 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4282 let excerpt_range = excerpt_range.to_offset(buffer);
4283 buffer
4284 .edited_ranges_for_transaction::<usize>(transaction)
4285 .all(|range| {
4286 excerpt_range.start <= range.start
4287 && excerpt_range.end >= range.end
4288 })
4289 })?;
4290
4291 if all_edits_within_excerpt {
4292 return Ok(());
4293 }
4294 }
4295 }
4296 }
4297 } else {
4298 return Ok(());
4299 }
4300
4301 let mut ranges_to_highlight = Vec::new();
4302 let excerpt_buffer = cx.new_model(|cx| {
4303 let mut multibuffer =
4304 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4305 for (buffer_handle, transaction) in &entries {
4306 let buffer = buffer_handle.read(cx);
4307 ranges_to_highlight.extend(
4308 multibuffer.push_excerpts_with_context_lines(
4309 buffer_handle.clone(),
4310 buffer
4311 .edited_ranges_for_transaction::<usize>(transaction)
4312 .collect(),
4313 DEFAULT_MULTIBUFFER_CONTEXT,
4314 cx,
4315 ),
4316 );
4317 }
4318 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4319 multibuffer
4320 })?;
4321
4322 workspace.update(&mut cx, |workspace, cx| {
4323 let project = workspace.project().clone();
4324 let editor =
4325 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4326 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4327 editor.update(cx, |editor, cx| {
4328 editor.highlight_background::<Self>(
4329 &ranges_to_highlight,
4330 |theme| theme.editor_highlighted_line_background,
4331 cx,
4332 );
4333 });
4334 })?;
4335
4336 Ok(())
4337 }
4338
4339 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4340 let project = self.project.clone()?;
4341 let buffer = self.buffer.read(cx);
4342 let newest_selection = self.selections.newest_anchor().clone();
4343 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4344 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4345 if start_buffer != end_buffer {
4346 return None;
4347 }
4348
4349 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4350 cx.background_executor()
4351 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4352 .await;
4353
4354 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4355 project.code_actions(&start_buffer, start..end, cx)
4356 }) {
4357 code_actions.await
4358 } else {
4359 Vec::new()
4360 };
4361
4362 this.update(&mut cx, |this, cx| {
4363 this.available_code_actions = if actions.is_empty() {
4364 None
4365 } else {
4366 Some((
4367 Location {
4368 buffer: start_buffer,
4369 range: start..end,
4370 },
4371 actions.into(),
4372 ))
4373 };
4374 cx.notify();
4375 })
4376 .log_err();
4377 }));
4378 None
4379 }
4380
4381 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4382 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4383 self.show_git_blame_inline = false;
4384
4385 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4386 cx.background_executor().timer(delay).await;
4387
4388 this.update(&mut cx, |this, cx| {
4389 this.show_git_blame_inline = true;
4390 cx.notify();
4391 })
4392 .log_err();
4393 }));
4394 }
4395 }
4396
4397 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4398 if self.pending_rename.is_some() {
4399 return None;
4400 }
4401
4402 let project = self.project.clone()?;
4403 let buffer = self.buffer.read(cx);
4404 let newest_selection = self.selections.newest_anchor().clone();
4405 let cursor_position = newest_selection.head();
4406 let (cursor_buffer, cursor_buffer_position) =
4407 buffer.text_anchor_for_position(cursor_position, cx)?;
4408 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4409 if cursor_buffer != tail_buffer {
4410 return None;
4411 }
4412
4413 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4414 cx.background_executor()
4415 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4416 .await;
4417
4418 let highlights = if let Some(highlights) = project
4419 .update(&mut cx, |project, cx| {
4420 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4421 })
4422 .log_err()
4423 {
4424 highlights.await.log_err()
4425 } else {
4426 None
4427 };
4428
4429 if let Some(highlights) = highlights {
4430 this.update(&mut cx, |this, cx| {
4431 if this.pending_rename.is_some() {
4432 return;
4433 }
4434
4435 let buffer_id = cursor_position.buffer_id;
4436 let buffer = this.buffer.read(cx);
4437 if !buffer
4438 .text_anchor_for_position(cursor_position, cx)
4439 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4440 {
4441 return;
4442 }
4443
4444 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4445 let mut write_ranges = Vec::new();
4446 let mut read_ranges = Vec::new();
4447 for highlight in highlights {
4448 for (excerpt_id, excerpt_range) in
4449 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4450 {
4451 let start = highlight
4452 .range
4453 .start
4454 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4455 let end = highlight
4456 .range
4457 .end
4458 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4459 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4460 continue;
4461 }
4462
4463 let range = Anchor {
4464 buffer_id,
4465 excerpt_id: excerpt_id,
4466 text_anchor: start,
4467 }..Anchor {
4468 buffer_id,
4469 excerpt_id,
4470 text_anchor: end,
4471 };
4472 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4473 write_ranges.push(range);
4474 } else {
4475 read_ranges.push(range);
4476 }
4477 }
4478 }
4479
4480 this.highlight_background::<DocumentHighlightRead>(
4481 &read_ranges,
4482 |theme| theme.editor_document_highlight_read_background,
4483 cx,
4484 );
4485 this.highlight_background::<DocumentHighlightWrite>(
4486 &write_ranges,
4487 |theme| theme.editor_document_highlight_write_background,
4488 cx,
4489 );
4490 cx.notify();
4491 })
4492 .log_err();
4493 }
4494 }));
4495 None
4496 }
4497
4498 fn refresh_inline_completion(
4499 &mut self,
4500 debounce: bool,
4501 cx: &mut ViewContext<Self>,
4502 ) -> Option<()> {
4503 let provider = self.inline_completion_provider()?;
4504 let cursor = self.selections.newest_anchor().head();
4505 let (buffer, cursor_buffer_position) =
4506 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4507 if !self.show_inline_completions
4508 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4509 {
4510 self.discard_inline_completion(false, cx);
4511 return None;
4512 }
4513
4514 self.update_visible_inline_completion(cx);
4515 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4516 Some(())
4517 }
4518
4519 fn cycle_inline_completion(
4520 &mut self,
4521 direction: Direction,
4522 cx: &mut ViewContext<Self>,
4523 ) -> Option<()> {
4524 let provider = self.inline_completion_provider()?;
4525 let cursor = self.selections.newest_anchor().head();
4526 let (buffer, cursor_buffer_position) =
4527 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4528 if !self.show_inline_completions
4529 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4530 {
4531 return None;
4532 }
4533
4534 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4535 self.update_visible_inline_completion(cx);
4536
4537 Some(())
4538 }
4539
4540 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4541 if !self.has_active_inline_completion(cx) {
4542 self.refresh_inline_completion(false, cx);
4543 return;
4544 }
4545
4546 self.update_visible_inline_completion(cx);
4547 }
4548
4549 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4550 self.show_cursor_names(cx);
4551 }
4552
4553 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4554 self.show_cursor_names = true;
4555 cx.notify();
4556 cx.spawn(|this, mut cx| async move {
4557 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4558 this.update(&mut cx, |this, cx| {
4559 this.show_cursor_names = false;
4560 cx.notify()
4561 })
4562 .ok()
4563 })
4564 .detach();
4565 }
4566
4567 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4568 if self.has_active_inline_completion(cx) {
4569 self.cycle_inline_completion(Direction::Next, cx);
4570 } else {
4571 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4572 if is_copilot_disabled {
4573 cx.propagate();
4574 }
4575 }
4576 }
4577
4578 pub fn previous_inline_completion(
4579 &mut self,
4580 _: &PreviousInlineCompletion,
4581 cx: &mut ViewContext<Self>,
4582 ) {
4583 if self.has_active_inline_completion(cx) {
4584 self.cycle_inline_completion(Direction::Prev, cx);
4585 } else {
4586 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4587 if is_copilot_disabled {
4588 cx.propagate();
4589 }
4590 }
4591 }
4592
4593 pub fn accept_inline_completion(
4594 &mut self,
4595 _: &AcceptInlineCompletion,
4596 cx: &mut ViewContext<Self>,
4597 ) {
4598 let Some(completion) = self.take_active_inline_completion(cx) else {
4599 return;
4600 };
4601 if let Some(provider) = self.inline_completion_provider() {
4602 provider.accept(cx);
4603 }
4604
4605 cx.emit(EditorEvent::InputHandled {
4606 utf16_range_to_replace: None,
4607 text: completion.text.to_string().into(),
4608 });
4609 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4610 self.refresh_inline_completion(true, cx);
4611 cx.notify();
4612 }
4613
4614 pub fn accept_partial_inline_completion(
4615 &mut self,
4616 _: &AcceptPartialInlineCompletion,
4617 cx: &mut ViewContext<Self>,
4618 ) {
4619 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4620 if let Some(completion) = self.take_active_inline_completion(cx) {
4621 let mut partial_completion = completion
4622 .text
4623 .chars()
4624 .by_ref()
4625 .take_while(|c| c.is_alphabetic())
4626 .collect::<String>();
4627 if partial_completion.is_empty() {
4628 partial_completion = completion
4629 .text
4630 .chars()
4631 .by_ref()
4632 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4633 .collect::<String>();
4634 }
4635
4636 cx.emit(EditorEvent::InputHandled {
4637 utf16_range_to_replace: None,
4638 text: partial_completion.clone().into(),
4639 });
4640 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4641 self.refresh_inline_completion(true, cx);
4642 cx.notify();
4643 }
4644 }
4645 }
4646
4647 fn discard_inline_completion(
4648 &mut self,
4649 should_report_inline_completion_event: bool,
4650 cx: &mut ViewContext<Self>,
4651 ) -> bool {
4652 if let Some(provider) = self.inline_completion_provider() {
4653 provider.discard(should_report_inline_completion_event, cx);
4654 }
4655
4656 self.take_active_inline_completion(cx).is_some()
4657 }
4658
4659 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4660 if let Some(completion) = self.active_inline_completion.as_ref() {
4661 let buffer = self.buffer.read(cx).read(cx);
4662 completion.position.is_valid(&buffer)
4663 } else {
4664 false
4665 }
4666 }
4667
4668 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4669 let completion = self.active_inline_completion.take()?;
4670 self.display_map.update(cx, |map, cx| {
4671 map.splice_inlays(vec![completion.id], Default::default(), cx);
4672 });
4673 let buffer = self.buffer.read(cx).read(cx);
4674
4675 if completion.position.is_valid(&buffer) {
4676 Some(completion)
4677 } else {
4678 None
4679 }
4680 }
4681
4682 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4683 let selection = self.selections.newest_anchor();
4684 let cursor = selection.head();
4685
4686 if self.context_menu.read().is_none()
4687 && self.completion_tasks.is_empty()
4688 && selection.start == selection.end
4689 {
4690 if let Some(provider) = self.inline_completion_provider() {
4691 if let Some((buffer, cursor_buffer_position)) =
4692 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4693 {
4694 if let Some(text) =
4695 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4696 {
4697 let text = Rope::from(text);
4698 let mut to_remove = Vec::new();
4699 if let Some(completion) = self.active_inline_completion.take() {
4700 to_remove.push(completion.id);
4701 }
4702
4703 let completion_inlay =
4704 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4705 self.active_inline_completion = Some(completion_inlay.clone());
4706 self.display_map.update(cx, move |map, cx| {
4707 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4708 });
4709 cx.notify();
4710 return;
4711 }
4712 }
4713 }
4714 }
4715
4716 self.discard_inline_completion(false, cx);
4717 }
4718
4719 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4720 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4721 }
4722
4723 fn render_code_actions_indicator(
4724 &self,
4725 _style: &EditorStyle,
4726 row: DisplayRow,
4727 is_active: bool,
4728 cx: &mut ViewContext<Self>,
4729 ) -> Option<IconButton> {
4730 if self.available_code_actions.is_some() {
4731 Some(
4732 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4733 .icon_size(IconSize::XSmall)
4734 .size(ui::ButtonSize::None)
4735 .icon_color(Color::Muted)
4736 .selected(is_active)
4737 .on_click(cx.listener(move |editor, _e, cx| {
4738 editor.focus(cx);
4739 editor.toggle_code_actions(
4740 &ToggleCodeActions {
4741 deployed_from_indicator: Some(row),
4742 },
4743 cx,
4744 );
4745 })),
4746 )
4747 } else {
4748 None
4749 }
4750 }
4751
4752 fn clear_tasks(&mut self) {
4753 self.tasks.clear()
4754 }
4755
4756 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4757 if let Some(_) = self.tasks.insert(key, value) {
4758 // This case should hopefully be rare, but just in case...
4759 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4760 }
4761 }
4762
4763 fn render_run_indicator(
4764 &self,
4765 _style: &EditorStyle,
4766 is_active: bool,
4767 row: DisplayRow,
4768 cx: &mut ViewContext<Self>,
4769 ) -> IconButton {
4770 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4771 .icon_size(IconSize::XSmall)
4772 .size(ui::ButtonSize::None)
4773 .icon_color(Color::Muted)
4774 .selected(is_active)
4775 .on_click(cx.listener(move |editor, _e, cx| {
4776 editor.focus(cx);
4777 editor.toggle_code_actions(
4778 &ToggleCodeActions {
4779 deployed_from_indicator: Some(row),
4780 },
4781 cx,
4782 );
4783 }))
4784 }
4785
4786 pub fn context_menu_visible(&self) -> bool {
4787 self.context_menu
4788 .read()
4789 .as_ref()
4790 .map_or(false, |menu| menu.visible())
4791 }
4792
4793 fn render_context_menu(
4794 &self,
4795 cursor_position: DisplayPoint,
4796 style: &EditorStyle,
4797 max_height: Pixels,
4798 cx: &mut ViewContext<Editor>,
4799 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4800 self.context_menu.read().as_ref().map(|menu| {
4801 menu.render(
4802 cursor_position,
4803 style,
4804 max_height,
4805 self.workspace.as_ref().map(|(w, _)| w.clone()),
4806 cx,
4807 )
4808 })
4809 }
4810
4811 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4812 cx.notify();
4813 self.completion_tasks.clear();
4814 let context_menu = self.context_menu.write().take();
4815 if context_menu.is_some() {
4816 self.update_visible_inline_completion(cx);
4817 }
4818 context_menu
4819 }
4820
4821 pub fn insert_snippet(
4822 &mut self,
4823 insertion_ranges: &[Range<usize>],
4824 snippet: Snippet,
4825 cx: &mut ViewContext<Self>,
4826 ) -> Result<()> {
4827 struct Tabstop<T> {
4828 is_end_tabstop: bool,
4829 ranges: Vec<Range<T>>,
4830 }
4831
4832 let tabstops = self.buffer.update(cx, |buffer, cx| {
4833 let snippet_text: Arc<str> = snippet.text.clone().into();
4834 buffer.edit(
4835 insertion_ranges
4836 .iter()
4837 .cloned()
4838 .map(|range| (range, snippet_text.clone())),
4839 Some(AutoindentMode::EachLine),
4840 cx,
4841 );
4842
4843 let snapshot = &*buffer.read(cx);
4844 let snippet = &snippet;
4845 snippet
4846 .tabstops
4847 .iter()
4848 .map(|tabstop| {
4849 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4850 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4851 });
4852 let mut tabstop_ranges = tabstop
4853 .iter()
4854 .flat_map(|tabstop_range| {
4855 let mut delta = 0_isize;
4856 insertion_ranges.iter().map(move |insertion_range| {
4857 let insertion_start = insertion_range.start as isize + delta;
4858 delta +=
4859 snippet.text.len() as isize - insertion_range.len() as isize;
4860
4861 let start = ((insertion_start + tabstop_range.start) as usize)
4862 .min(snapshot.len());
4863 let end = ((insertion_start + tabstop_range.end) as usize)
4864 .min(snapshot.len());
4865 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4866 })
4867 })
4868 .collect::<Vec<_>>();
4869 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4870
4871 Tabstop {
4872 is_end_tabstop,
4873 ranges: tabstop_ranges,
4874 }
4875 })
4876 .collect::<Vec<_>>()
4877 });
4878
4879 if let Some(tabstop) = tabstops.first() {
4880 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4881 s.select_ranges(tabstop.ranges.iter().cloned());
4882 });
4883
4884 // If we're already at the last tabstop and it's at the end of the snippet,
4885 // we're done, we don't need to keep the state around.
4886 if !tabstop.is_end_tabstop {
4887 let ranges = tabstops
4888 .into_iter()
4889 .map(|tabstop| tabstop.ranges)
4890 .collect::<Vec<_>>();
4891 self.snippet_stack.push(SnippetState {
4892 active_index: 0,
4893 ranges,
4894 });
4895 }
4896
4897 // Check whether the just-entered snippet ends with an auto-closable bracket.
4898 if self.autoclose_regions.is_empty() {
4899 let snapshot = self.buffer.read(cx).snapshot(cx);
4900 for selection in &mut self.selections.all::<Point>(cx) {
4901 let selection_head = selection.head();
4902 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4903 continue;
4904 };
4905
4906 let mut bracket_pair = None;
4907 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4908 let prev_chars = snapshot
4909 .reversed_chars_at(selection_head)
4910 .collect::<String>();
4911 for (pair, enabled) in scope.brackets() {
4912 if enabled
4913 && pair.close
4914 && prev_chars.starts_with(pair.start.as_str())
4915 && next_chars.starts_with(pair.end.as_str())
4916 {
4917 bracket_pair = Some(pair.clone());
4918 break;
4919 }
4920 }
4921 if let Some(pair) = bracket_pair {
4922 let start = snapshot.anchor_after(selection_head);
4923 let end = snapshot.anchor_after(selection_head);
4924 self.autoclose_regions.push(AutocloseRegion {
4925 selection_id: selection.id,
4926 range: start..end,
4927 pair,
4928 });
4929 }
4930 }
4931 }
4932 }
4933 Ok(())
4934 }
4935
4936 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4937 self.move_to_snippet_tabstop(Bias::Right, cx)
4938 }
4939
4940 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4941 self.move_to_snippet_tabstop(Bias::Left, cx)
4942 }
4943
4944 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4945 if let Some(mut snippet) = self.snippet_stack.pop() {
4946 match bias {
4947 Bias::Left => {
4948 if snippet.active_index > 0 {
4949 snippet.active_index -= 1;
4950 } else {
4951 self.snippet_stack.push(snippet);
4952 return false;
4953 }
4954 }
4955 Bias::Right => {
4956 if snippet.active_index + 1 < snippet.ranges.len() {
4957 snippet.active_index += 1;
4958 } else {
4959 self.snippet_stack.push(snippet);
4960 return false;
4961 }
4962 }
4963 }
4964 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4965 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4966 s.select_anchor_ranges(current_ranges.iter().cloned())
4967 });
4968 // If snippet state is not at the last tabstop, push it back on the stack
4969 if snippet.active_index + 1 < snippet.ranges.len() {
4970 self.snippet_stack.push(snippet);
4971 }
4972 return true;
4973 }
4974 }
4975
4976 false
4977 }
4978
4979 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4980 self.transact(cx, |this, cx| {
4981 this.select_all(&SelectAll, cx);
4982 this.insert("", cx);
4983 });
4984 }
4985
4986 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4987 self.transact(cx, |this, cx| {
4988 this.select_autoclose_pair(cx);
4989 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4990 if !this.selections.line_mode {
4991 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4992 for selection in &mut selections {
4993 if selection.is_empty() {
4994 let old_head = selection.head();
4995 let mut new_head =
4996 movement::left(&display_map, old_head.to_display_point(&display_map))
4997 .to_point(&display_map);
4998 if let Some((buffer, line_buffer_range)) = display_map
4999 .buffer_snapshot
5000 .buffer_line_for_row(MultiBufferRow(old_head.row))
5001 {
5002 let indent_size =
5003 buffer.indent_size_for_line(line_buffer_range.start.row);
5004 let indent_len = match indent_size.kind {
5005 IndentKind::Space => {
5006 buffer.settings_at(line_buffer_range.start, cx).tab_size
5007 }
5008 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5009 };
5010 if old_head.column <= indent_size.len && old_head.column > 0 {
5011 let indent_len = indent_len.get();
5012 new_head = cmp::min(
5013 new_head,
5014 MultiBufferPoint::new(
5015 old_head.row,
5016 ((old_head.column - 1) / indent_len) * indent_len,
5017 ),
5018 );
5019 }
5020 }
5021
5022 selection.set_head(new_head, SelectionGoal::None);
5023 }
5024 }
5025 }
5026
5027 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5028 this.insert("", cx);
5029 this.refresh_inline_completion(true, cx);
5030 });
5031 }
5032
5033 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5034 self.transact(cx, |this, cx| {
5035 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5036 let line_mode = s.line_mode;
5037 s.move_with(|map, selection| {
5038 if selection.is_empty() && !line_mode {
5039 let cursor = movement::right(map, selection.head());
5040 selection.end = cursor;
5041 selection.reversed = true;
5042 selection.goal = SelectionGoal::None;
5043 }
5044 })
5045 });
5046 this.insert("", cx);
5047 this.refresh_inline_completion(true, cx);
5048 });
5049 }
5050
5051 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5052 if self.move_to_prev_snippet_tabstop(cx) {
5053 return;
5054 }
5055
5056 self.outdent(&Outdent, cx);
5057 }
5058
5059 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5060 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5061 return;
5062 }
5063
5064 let mut selections = self.selections.all_adjusted(cx);
5065 let buffer = self.buffer.read(cx);
5066 let snapshot = buffer.snapshot(cx);
5067 let rows_iter = selections.iter().map(|s| s.head().row);
5068 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5069
5070 let mut edits = Vec::new();
5071 let mut prev_edited_row = 0;
5072 let mut row_delta = 0;
5073 for selection in &mut selections {
5074 if selection.start.row != prev_edited_row {
5075 row_delta = 0;
5076 }
5077 prev_edited_row = selection.end.row;
5078
5079 // If the selection is non-empty, then increase the indentation of the selected lines.
5080 if !selection.is_empty() {
5081 row_delta =
5082 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5083 continue;
5084 }
5085
5086 // If the selection is empty and the cursor is in the leading whitespace before the
5087 // suggested indentation, then auto-indent the line.
5088 let cursor = selection.head();
5089 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5090 if let Some(suggested_indent) =
5091 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5092 {
5093 if cursor.column < suggested_indent.len
5094 && cursor.column <= current_indent.len
5095 && current_indent.len <= suggested_indent.len
5096 {
5097 selection.start = Point::new(cursor.row, suggested_indent.len);
5098 selection.end = selection.start;
5099 if row_delta == 0 {
5100 edits.extend(Buffer::edit_for_indent_size_adjustment(
5101 cursor.row,
5102 current_indent,
5103 suggested_indent,
5104 ));
5105 row_delta = suggested_indent.len - current_indent.len;
5106 }
5107 continue;
5108 }
5109 }
5110
5111 // Otherwise, insert a hard or soft tab.
5112 let settings = buffer.settings_at(cursor, cx);
5113 let tab_size = if settings.hard_tabs {
5114 IndentSize::tab()
5115 } else {
5116 let tab_size = settings.tab_size.get();
5117 let char_column = snapshot
5118 .text_for_range(Point::new(cursor.row, 0)..cursor)
5119 .flat_map(str::chars)
5120 .count()
5121 + row_delta as usize;
5122 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5123 IndentSize::spaces(chars_to_next_tab_stop)
5124 };
5125 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5126 selection.end = selection.start;
5127 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5128 row_delta += tab_size.len;
5129 }
5130
5131 self.transact(cx, |this, cx| {
5132 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5133 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5134 this.refresh_inline_completion(true, cx);
5135 });
5136 }
5137
5138 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5139 if self.read_only(cx) {
5140 return;
5141 }
5142 let mut selections = self.selections.all::<Point>(cx);
5143 let mut prev_edited_row = 0;
5144 let mut row_delta = 0;
5145 let mut edits = Vec::new();
5146 let buffer = self.buffer.read(cx);
5147 let snapshot = buffer.snapshot(cx);
5148 for selection in &mut selections {
5149 if selection.start.row != prev_edited_row {
5150 row_delta = 0;
5151 }
5152 prev_edited_row = selection.end.row;
5153
5154 row_delta =
5155 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5156 }
5157
5158 self.transact(cx, |this, cx| {
5159 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5160 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5161 });
5162 }
5163
5164 fn indent_selection(
5165 buffer: &MultiBuffer,
5166 snapshot: &MultiBufferSnapshot,
5167 selection: &mut Selection<Point>,
5168 edits: &mut Vec<(Range<Point>, String)>,
5169 delta_for_start_row: u32,
5170 cx: &AppContext,
5171 ) -> u32 {
5172 let settings = buffer.settings_at(selection.start, cx);
5173 let tab_size = settings.tab_size.get();
5174 let indent_kind = if settings.hard_tabs {
5175 IndentKind::Tab
5176 } else {
5177 IndentKind::Space
5178 };
5179 let mut start_row = selection.start.row;
5180 let mut end_row = selection.end.row + 1;
5181
5182 // If a selection ends at the beginning of a line, don't indent
5183 // that last line.
5184 if selection.end.column == 0 && selection.end.row > selection.start.row {
5185 end_row -= 1;
5186 }
5187
5188 // Avoid re-indenting a row that has already been indented by a
5189 // previous selection, but still update this selection's column
5190 // to reflect that indentation.
5191 if delta_for_start_row > 0 {
5192 start_row += 1;
5193 selection.start.column += delta_for_start_row;
5194 if selection.end.row == selection.start.row {
5195 selection.end.column += delta_for_start_row;
5196 }
5197 }
5198
5199 let mut delta_for_end_row = 0;
5200 let has_multiple_rows = start_row + 1 != end_row;
5201 for row in start_row..end_row {
5202 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5203 let indent_delta = match (current_indent.kind, indent_kind) {
5204 (IndentKind::Space, IndentKind::Space) => {
5205 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5206 IndentSize::spaces(columns_to_next_tab_stop)
5207 }
5208 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5209 (_, IndentKind::Tab) => IndentSize::tab(),
5210 };
5211
5212 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5213 0
5214 } else {
5215 selection.start.column
5216 };
5217 let row_start = Point::new(row, start);
5218 edits.push((
5219 row_start..row_start,
5220 indent_delta.chars().collect::<String>(),
5221 ));
5222
5223 // Update this selection's endpoints to reflect the indentation.
5224 if row == selection.start.row {
5225 selection.start.column += indent_delta.len;
5226 }
5227 if row == selection.end.row {
5228 selection.end.column += indent_delta.len;
5229 delta_for_end_row = indent_delta.len;
5230 }
5231 }
5232
5233 if selection.start.row == selection.end.row {
5234 delta_for_start_row + delta_for_end_row
5235 } else {
5236 delta_for_end_row
5237 }
5238 }
5239
5240 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5241 if self.read_only(cx) {
5242 return;
5243 }
5244 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5245 let selections = self.selections.all::<Point>(cx);
5246 let mut deletion_ranges = Vec::new();
5247 let mut last_outdent = None;
5248 {
5249 let buffer = self.buffer.read(cx);
5250 let snapshot = buffer.snapshot(cx);
5251 for selection in &selections {
5252 let settings = buffer.settings_at(selection.start, cx);
5253 let tab_size = settings.tab_size.get();
5254 let mut rows = selection.spanned_rows(false, &display_map);
5255
5256 // Avoid re-outdenting a row that has already been outdented by a
5257 // previous selection.
5258 if let Some(last_row) = last_outdent {
5259 if last_row == rows.start {
5260 rows.start = rows.start.next_row();
5261 }
5262 }
5263 let has_multiple_rows = rows.len() > 1;
5264 for row in rows.iter_rows() {
5265 let indent_size = snapshot.indent_size_for_line(row);
5266 if indent_size.len > 0 {
5267 let deletion_len = match indent_size.kind {
5268 IndentKind::Space => {
5269 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5270 if columns_to_prev_tab_stop == 0 {
5271 tab_size
5272 } else {
5273 columns_to_prev_tab_stop
5274 }
5275 }
5276 IndentKind::Tab => 1,
5277 };
5278 let start = if has_multiple_rows
5279 || deletion_len > selection.start.column
5280 || indent_size.len < selection.start.column
5281 {
5282 0
5283 } else {
5284 selection.start.column - deletion_len
5285 };
5286 deletion_ranges.push(
5287 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5288 );
5289 last_outdent = Some(row);
5290 }
5291 }
5292 }
5293 }
5294
5295 self.transact(cx, |this, cx| {
5296 this.buffer.update(cx, |buffer, cx| {
5297 let empty_str: Arc<str> = "".into();
5298 buffer.edit(
5299 deletion_ranges
5300 .into_iter()
5301 .map(|range| (range, empty_str.clone())),
5302 None,
5303 cx,
5304 );
5305 });
5306 let selections = this.selections.all::<usize>(cx);
5307 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5308 });
5309 }
5310
5311 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5312 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5313 let selections = self.selections.all::<Point>(cx);
5314
5315 let mut new_cursors = Vec::new();
5316 let mut edit_ranges = Vec::new();
5317 let mut selections = selections.iter().peekable();
5318 while let Some(selection) = selections.next() {
5319 let mut rows = selection.spanned_rows(false, &display_map);
5320 let goal_display_column = selection.head().to_display_point(&display_map).column();
5321
5322 // Accumulate contiguous regions of rows that we want to delete.
5323 while let Some(next_selection) = selections.peek() {
5324 let next_rows = next_selection.spanned_rows(false, &display_map);
5325 if next_rows.start <= rows.end {
5326 rows.end = next_rows.end;
5327 selections.next().unwrap();
5328 } else {
5329 break;
5330 }
5331 }
5332
5333 let buffer = &display_map.buffer_snapshot;
5334 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5335 let edit_end;
5336 let cursor_buffer_row;
5337 if buffer.max_point().row >= rows.end.0 {
5338 // If there's a line after the range, delete the \n from the end of the row range
5339 // and position the cursor on the next line.
5340 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5341 cursor_buffer_row = rows.end;
5342 } else {
5343 // If there isn't a line after the range, delete the \n from the line before the
5344 // start of the row range and position the cursor there.
5345 edit_start = edit_start.saturating_sub(1);
5346 edit_end = buffer.len();
5347 cursor_buffer_row = rows.start.previous_row();
5348 }
5349
5350 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5351 *cursor.column_mut() =
5352 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5353
5354 new_cursors.push((
5355 selection.id,
5356 buffer.anchor_after(cursor.to_point(&display_map)),
5357 ));
5358 edit_ranges.push(edit_start..edit_end);
5359 }
5360
5361 self.transact(cx, |this, cx| {
5362 let buffer = this.buffer.update(cx, |buffer, cx| {
5363 let empty_str: Arc<str> = "".into();
5364 buffer.edit(
5365 edit_ranges
5366 .into_iter()
5367 .map(|range| (range, empty_str.clone())),
5368 None,
5369 cx,
5370 );
5371 buffer.snapshot(cx)
5372 });
5373 let new_selections = new_cursors
5374 .into_iter()
5375 .map(|(id, cursor)| {
5376 let cursor = cursor.to_point(&buffer);
5377 Selection {
5378 id,
5379 start: cursor,
5380 end: cursor,
5381 reversed: false,
5382 goal: SelectionGoal::None,
5383 }
5384 })
5385 .collect();
5386
5387 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5388 s.select(new_selections);
5389 });
5390 });
5391 }
5392
5393 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5394 if self.read_only(cx) {
5395 return;
5396 }
5397 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5398 for selection in self.selections.all::<Point>(cx) {
5399 let start = MultiBufferRow(selection.start.row);
5400 let end = if selection.start.row == selection.end.row {
5401 MultiBufferRow(selection.start.row + 1)
5402 } else {
5403 MultiBufferRow(selection.end.row)
5404 };
5405
5406 if let Some(last_row_range) = row_ranges.last_mut() {
5407 if start <= last_row_range.end {
5408 last_row_range.end = end;
5409 continue;
5410 }
5411 }
5412 row_ranges.push(start..end);
5413 }
5414
5415 let snapshot = self.buffer.read(cx).snapshot(cx);
5416 let mut cursor_positions = Vec::new();
5417 for row_range in &row_ranges {
5418 let anchor = snapshot.anchor_before(Point::new(
5419 row_range.end.previous_row().0,
5420 snapshot.line_len(row_range.end.previous_row()),
5421 ));
5422 cursor_positions.push(anchor..anchor);
5423 }
5424
5425 self.transact(cx, |this, cx| {
5426 for row_range in row_ranges.into_iter().rev() {
5427 for row in row_range.iter_rows().rev() {
5428 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5429 let next_line_row = row.next_row();
5430 let indent = snapshot.indent_size_for_line(next_line_row);
5431 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5432
5433 let replace = if snapshot.line_len(next_line_row) > indent.len {
5434 " "
5435 } else {
5436 ""
5437 };
5438
5439 this.buffer.update(cx, |buffer, cx| {
5440 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5441 });
5442 }
5443 }
5444
5445 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5446 s.select_anchor_ranges(cursor_positions)
5447 });
5448 });
5449 }
5450
5451 pub fn sort_lines_case_sensitive(
5452 &mut self,
5453 _: &SortLinesCaseSensitive,
5454 cx: &mut ViewContext<Self>,
5455 ) {
5456 self.manipulate_lines(cx, |lines| lines.sort())
5457 }
5458
5459 pub fn sort_lines_case_insensitive(
5460 &mut self,
5461 _: &SortLinesCaseInsensitive,
5462 cx: &mut ViewContext<Self>,
5463 ) {
5464 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5465 }
5466
5467 pub fn unique_lines_case_insensitive(
5468 &mut self,
5469 _: &UniqueLinesCaseInsensitive,
5470 cx: &mut ViewContext<Self>,
5471 ) {
5472 self.manipulate_lines(cx, |lines| {
5473 let mut seen = HashSet::default();
5474 lines.retain(|line| seen.insert(line.to_lowercase()));
5475 })
5476 }
5477
5478 pub fn unique_lines_case_sensitive(
5479 &mut self,
5480 _: &UniqueLinesCaseSensitive,
5481 cx: &mut ViewContext<Self>,
5482 ) {
5483 self.manipulate_lines(cx, |lines| {
5484 let mut seen = HashSet::default();
5485 lines.retain(|line| seen.insert(*line));
5486 })
5487 }
5488
5489 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5490 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5491 if !revert_changes.is_empty() {
5492 self.transact(cx, |editor, cx| {
5493 editor.buffer().update(cx, |multi_buffer, cx| {
5494 for (buffer_id, changes) in revert_changes {
5495 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5496 buffer.update(cx, |buffer, cx| {
5497 buffer.edit(
5498 changes.into_iter().map(|(range, text)| {
5499 (range, text.to_string().map(Arc::<str>::from))
5500 }),
5501 None,
5502 cx,
5503 );
5504 });
5505 }
5506 }
5507 });
5508 editor.change_selections(None, cx, |selections| selections.refresh());
5509 });
5510 }
5511 }
5512
5513 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5514 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5515 let project_path = buffer.read(cx).project_path(cx)?;
5516 let project = self.project.as_ref()?.read(cx);
5517 let entry = project.entry_for_path(&project_path, cx)?;
5518 let abs_path = project.absolute_path(&project_path, cx)?;
5519 let parent = if entry.is_symlink {
5520 abs_path.canonicalize().ok()?
5521 } else {
5522 abs_path
5523 }
5524 .parent()?
5525 .to_path_buf();
5526 Some(parent)
5527 }) {
5528 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5529 }
5530 }
5531
5532 fn gather_revert_changes(
5533 &mut self,
5534 selections: &[Selection<Anchor>],
5535 cx: &mut ViewContext<'_, Editor>,
5536 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5537 let mut revert_changes = HashMap::default();
5538 self.buffer.update(cx, |multi_buffer, cx| {
5539 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5540 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5541 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5542 }
5543 });
5544 revert_changes
5545 }
5546
5547 fn prepare_revert_change(
5548 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5549 multi_buffer: &MultiBuffer,
5550 hunk: &DiffHunk<MultiBufferRow>,
5551 cx: &mut AppContext,
5552 ) -> Option<()> {
5553 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5554 let buffer = buffer.read(cx);
5555 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5556 let buffer_snapshot = buffer.snapshot();
5557 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5558 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5559 probe
5560 .0
5561 .start
5562 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5563 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5564 }) {
5565 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5566 Some(())
5567 } else {
5568 None
5569 }
5570 }
5571
5572 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5573 self.manipulate_lines(cx, |lines| lines.reverse())
5574 }
5575
5576 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5577 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5578 }
5579
5580 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5581 where
5582 Fn: FnMut(&mut Vec<&str>),
5583 {
5584 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5585 let buffer = self.buffer.read(cx).snapshot(cx);
5586
5587 let mut edits = Vec::new();
5588
5589 let selections = self.selections.all::<Point>(cx);
5590 let mut selections = selections.iter().peekable();
5591 let mut contiguous_row_selections = Vec::new();
5592 let mut new_selections = Vec::new();
5593 let mut added_lines = 0;
5594 let mut removed_lines = 0;
5595
5596 while let Some(selection) = selections.next() {
5597 let (start_row, end_row) = consume_contiguous_rows(
5598 &mut contiguous_row_selections,
5599 selection,
5600 &display_map,
5601 &mut selections,
5602 );
5603
5604 let start_point = Point::new(start_row.0, 0);
5605 let end_point = Point::new(
5606 end_row.previous_row().0,
5607 buffer.line_len(end_row.previous_row()),
5608 );
5609 let text = buffer
5610 .text_for_range(start_point..end_point)
5611 .collect::<String>();
5612
5613 let mut lines = text.split('\n').collect_vec();
5614
5615 let lines_before = lines.len();
5616 callback(&mut lines);
5617 let lines_after = lines.len();
5618
5619 edits.push((start_point..end_point, lines.join("\n")));
5620
5621 // Selections must change based on added and removed line count
5622 let start_row =
5623 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5624 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5625 new_selections.push(Selection {
5626 id: selection.id,
5627 start: start_row,
5628 end: end_row,
5629 goal: SelectionGoal::None,
5630 reversed: selection.reversed,
5631 });
5632
5633 if lines_after > lines_before {
5634 added_lines += lines_after - lines_before;
5635 } else if lines_before > lines_after {
5636 removed_lines += lines_before - lines_after;
5637 }
5638 }
5639
5640 self.transact(cx, |this, cx| {
5641 let buffer = this.buffer.update(cx, |buffer, cx| {
5642 buffer.edit(edits, None, cx);
5643 buffer.snapshot(cx)
5644 });
5645
5646 // Recalculate offsets on newly edited buffer
5647 let new_selections = new_selections
5648 .iter()
5649 .map(|s| {
5650 let start_point = Point::new(s.start.0, 0);
5651 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5652 Selection {
5653 id: s.id,
5654 start: buffer.point_to_offset(start_point),
5655 end: buffer.point_to_offset(end_point),
5656 goal: s.goal,
5657 reversed: s.reversed,
5658 }
5659 })
5660 .collect();
5661
5662 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5663 s.select(new_selections);
5664 });
5665
5666 this.request_autoscroll(Autoscroll::fit(), cx);
5667 });
5668 }
5669
5670 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5671 self.manipulate_text(cx, |text| text.to_uppercase())
5672 }
5673
5674 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5675 self.manipulate_text(cx, |text| text.to_lowercase())
5676 }
5677
5678 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5679 self.manipulate_text(cx, |text| {
5680 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5681 // https://github.com/rutrum/convert-case/issues/16
5682 text.split('\n')
5683 .map(|line| line.to_case(Case::Title))
5684 .join("\n")
5685 })
5686 }
5687
5688 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5689 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5690 }
5691
5692 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5693 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5694 }
5695
5696 pub fn convert_to_upper_camel_case(
5697 &mut self,
5698 _: &ConvertToUpperCamelCase,
5699 cx: &mut ViewContext<Self>,
5700 ) {
5701 self.manipulate_text(cx, |text| {
5702 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5703 // https://github.com/rutrum/convert-case/issues/16
5704 text.split('\n')
5705 .map(|line| line.to_case(Case::UpperCamel))
5706 .join("\n")
5707 })
5708 }
5709
5710 pub fn convert_to_lower_camel_case(
5711 &mut self,
5712 _: &ConvertToLowerCamelCase,
5713 cx: &mut ViewContext<Self>,
5714 ) {
5715 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5716 }
5717
5718 pub fn convert_to_opposite_case(
5719 &mut self,
5720 _: &ConvertToOppositeCase,
5721 cx: &mut ViewContext<Self>,
5722 ) {
5723 self.manipulate_text(cx, |text| {
5724 text.chars()
5725 .fold(String::with_capacity(text.len()), |mut t, c| {
5726 if c.is_uppercase() {
5727 t.extend(c.to_lowercase());
5728 } else {
5729 t.extend(c.to_uppercase());
5730 }
5731 t
5732 })
5733 })
5734 }
5735
5736 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5737 where
5738 Fn: FnMut(&str) -> String,
5739 {
5740 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5741 let buffer = self.buffer.read(cx).snapshot(cx);
5742
5743 let mut new_selections = Vec::new();
5744 let mut edits = Vec::new();
5745 let mut selection_adjustment = 0i32;
5746
5747 for selection in self.selections.all::<usize>(cx) {
5748 let selection_is_empty = selection.is_empty();
5749
5750 let (start, end) = if selection_is_empty {
5751 let word_range = movement::surrounding_word(
5752 &display_map,
5753 selection.start.to_display_point(&display_map),
5754 );
5755 let start = word_range.start.to_offset(&display_map, Bias::Left);
5756 let end = word_range.end.to_offset(&display_map, Bias::Left);
5757 (start, end)
5758 } else {
5759 (selection.start, selection.end)
5760 };
5761
5762 let text = buffer.text_for_range(start..end).collect::<String>();
5763 let old_length = text.len() as i32;
5764 let text = callback(&text);
5765
5766 new_selections.push(Selection {
5767 start: (start as i32 - selection_adjustment) as usize,
5768 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5769 goal: SelectionGoal::None,
5770 ..selection
5771 });
5772
5773 selection_adjustment += old_length - text.len() as i32;
5774
5775 edits.push((start..end, text));
5776 }
5777
5778 self.transact(cx, |this, cx| {
5779 this.buffer.update(cx, |buffer, cx| {
5780 buffer.edit(edits, None, cx);
5781 });
5782
5783 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5784 s.select(new_selections);
5785 });
5786
5787 this.request_autoscroll(Autoscroll::fit(), cx);
5788 });
5789 }
5790
5791 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5792 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5793 let buffer = &display_map.buffer_snapshot;
5794 let selections = self.selections.all::<Point>(cx);
5795
5796 let mut edits = Vec::new();
5797 let mut selections_iter = selections.iter().peekable();
5798 while let Some(selection) = selections_iter.next() {
5799 // Avoid duplicating the same lines twice.
5800 let mut rows = selection.spanned_rows(false, &display_map);
5801
5802 while let Some(next_selection) = selections_iter.peek() {
5803 let next_rows = next_selection.spanned_rows(false, &display_map);
5804 if next_rows.start < rows.end {
5805 rows.end = next_rows.end;
5806 selections_iter.next().unwrap();
5807 } else {
5808 break;
5809 }
5810 }
5811
5812 // Copy the text from the selected row region and splice it either at the start
5813 // or end of the region.
5814 let start = Point::new(rows.start.0, 0);
5815 let end = Point::new(
5816 rows.end.previous_row().0,
5817 buffer.line_len(rows.end.previous_row()),
5818 );
5819 let text = buffer
5820 .text_for_range(start..end)
5821 .chain(Some("\n"))
5822 .collect::<String>();
5823 let insert_location = if upwards {
5824 Point::new(rows.end.0, 0)
5825 } else {
5826 start
5827 };
5828 edits.push((insert_location..insert_location, text));
5829 }
5830
5831 self.transact(cx, |this, cx| {
5832 this.buffer.update(cx, |buffer, cx| {
5833 buffer.edit(edits, None, cx);
5834 });
5835
5836 this.request_autoscroll(Autoscroll::fit(), cx);
5837 });
5838 }
5839
5840 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5841 self.duplicate_line(true, cx);
5842 }
5843
5844 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5845 self.duplicate_line(false, cx);
5846 }
5847
5848 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5849 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5850 let buffer = self.buffer.read(cx).snapshot(cx);
5851
5852 let mut edits = Vec::new();
5853 let mut unfold_ranges = Vec::new();
5854 let mut refold_ranges = Vec::new();
5855
5856 let selections = self.selections.all::<Point>(cx);
5857 let mut selections = selections.iter().peekable();
5858 let mut contiguous_row_selections = Vec::new();
5859 let mut new_selections = Vec::new();
5860
5861 while let Some(selection) = selections.next() {
5862 // Find all the selections that span a contiguous row range
5863 let (start_row, end_row) = consume_contiguous_rows(
5864 &mut contiguous_row_selections,
5865 selection,
5866 &display_map,
5867 &mut selections,
5868 );
5869
5870 // Move the text spanned by the row range to be before the line preceding the row range
5871 if start_row.0 > 0 {
5872 let range_to_move = Point::new(
5873 start_row.previous_row().0,
5874 buffer.line_len(start_row.previous_row()),
5875 )
5876 ..Point::new(
5877 end_row.previous_row().0,
5878 buffer.line_len(end_row.previous_row()),
5879 );
5880 let insertion_point = display_map
5881 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5882 .0;
5883
5884 // Don't move lines across excerpts
5885 if buffer
5886 .excerpt_boundaries_in_range((
5887 Bound::Excluded(insertion_point),
5888 Bound::Included(range_to_move.end),
5889 ))
5890 .next()
5891 .is_none()
5892 {
5893 let text = buffer
5894 .text_for_range(range_to_move.clone())
5895 .flat_map(|s| s.chars())
5896 .skip(1)
5897 .chain(['\n'])
5898 .collect::<String>();
5899
5900 edits.push((
5901 buffer.anchor_after(range_to_move.start)
5902 ..buffer.anchor_before(range_to_move.end),
5903 String::new(),
5904 ));
5905 let insertion_anchor = buffer.anchor_after(insertion_point);
5906 edits.push((insertion_anchor..insertion_anchor, text));
5907
5908 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5909
5910 // Move selections up
5911 new_selections.extend(contiguous_row_selections.drain(..).map(
5912 |mut selection| {
5913 selection.start.row -= row_delta;
5914 selection.end.row -= row_delta;
5915 selection
5916 },
5917 ));
5918
5919 // Move folds up
5920 unfold_ranges.push(range_to_move.clone());
5921 for fold in display_map.folds_in_range(
5922 buffer.anchor_before(range_to_move.start)
5923 ..buffer.anchor_after(range_to_move.end),
5924 ) {
5925 let mut start = fold.range.start.to_point(&buffer);
5926 let mut end = fold.range.end.to_point(&buffer);
5927 start.row -= row_delta;
5928 end.row -= row_delta;
5929 refold_ranges.push((start..end, fold.placeholder.clone()));
5930 }
5931 }
5932 }
5933
5934 // If we didn't move line(s), preserve the existing selections
5935 new_selections.append(&mut contiguous_row_selections);
5936 }
5937
5938 self.transact(cx, |this, cx| {
5939 this.unfold_ranges(unfold_ranges, true, true, cx);
5940 this.buffer.update(cx, |buffer, cx| {
5941 for (range, text) in edits {
5942 buffer.edit([(range, text)], None, cx);
5943 }
5944 });
5945 this.fold_ranges(refold_ranges, true, cx);
5946 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5947 s.select(new_selections);
5948 })
5949 });
5950 }
5951
5952 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5953 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5954 let buffer = self.buffer.read(cx).snapshot(cx);
5955
5956 let mut edits = Vec::new();
5957 let mut unfold_ranges = Vec::new();
5958 let mut refold_ranges = Vec::new();
5959
5960 let selections = self.selections.all::<Point>(cx);
5961 let mut selections = selections.iter().peekable();
5962 let mut contiguous_row_selections = Vec::new();
5963 let mut new_selections = Vec::new();
5964
5965 while let Some(selection) = selections.next() {
5966 // Find all the selections that span a contiguous row range
5967 let (start_row, end_row) = consume_contiguous_rows(
5968 &mut contiguous_row_selections,
5969 selection,
5970 &display_map,
5971 &mut selections,
5972 );
5973
5974 // Move the text spanned by the row range to be after the last line of the row range
5975 if end_row.0 <= buffer.max_point().row {
5976 let range_to_move =
5977 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5978 let insertion_point = display_map
5979 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5980 .0;
5981
5982 // Don't move lines across excerpt boundaries
5983 if buffer
5984 .excerpt_boundaries_in_range((
5985 Bound::Excluded(range_to_move.start),
5986 Bound::Included(insertion_point),
5987 ))
5988 .next()
5989 .is_none()
5990 {
5991 let mut text = String::from("\n");
5992 text.extend(buffer.text_for_range(range_to_move.clone()));
5993 text.pop(); // Drop trailing newline
5994 edits.push((
5995 buffer.anchor_after(range_to_move.start)
5996 ..buffer.anchor_before(range_to_move.end),
5997 String::new(),
5998 ));
5999 let insertion_anchor = buffer.anchor_after(insertion_point);
6000 edits.push((insertion_anchor..insertion_anchor, text));
6001
6002 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6003
6004 // Move selections down
6005 new_selections.extend(contiguous_row_selections.drain(..).map(
6006 |mut selection| {
6007 selection.start.row += row_delta;
6008 selection.end.row += row_delta;
6009 selection
6010 },
6011 ));
6012
6013 // Move folds down
6014 unfold_ranges.push(range_to_move.clone());
6015 for fold in display_map.folds_in_range(
6016 buffer.anchor_before(range_to_move.start)
6017 ..buffer.anchor_after(range_to_move.end),
6018 ) {
6019 let mut start = fold.range.start.to_point(&buffer);
6020 let mut end = fold.range.end.to_point(&buffer);
6021 start.row += row_delta;
6022 end.row += row_delta;
6023 refold_ranges.push((start..end, fold.placeholder.clone()));
6024 }
6025 }
6026 }
6027
6028 // If we didn't move line(s), preserve the existing selections
6029 new_selections.append(&mut contiguous_row_selections);
6030 }
6031
6032 self.transact(cx, |this, cx| {
6033 this.unfold_ranges(unfold_ranges, true, true, cx);
6034 this.buffer.update(cx, |buffer, cx| {
6035 for (range, text) in edits {
6036 buffer.edit([(range, text)], None, cx);
6037 }
6038 });
6039 this.fold_ranges(refold_ranges, true, cx);
6040 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6041 });
6042 }
6043
6044 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6045 let text_layout_details = &self.text_layout_details(cx);
6046 self.transact(cx, |this, cx| {
6047 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6048 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6049 let line_mode = s.line_mode;
6050 s.move_with(|display_map, selection| {
6051 if !selection.is_empty() || line_mode {
6052 return;
6053 }
6054
6055 let mut head = selection.head();
6056 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6057 if head.column() == display_map.line_len(head.row()) {
6058 transpose_offset = display_map
6059 .buffer_snapshot
6060 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6061 }
6062
6063 if transpose_offset == 0 {
6064 return;
6065 }
6066
6067 *head.column_mut() += 1;
6068 head = display_map.clip_point(head, Bias::Right);
6069 let goal = SelectionGoal::HorizontalPosition(
6070 display_map
6071 .x_for_display_point(head, &text_layout_details)
6072 .into(),
6073 );
6074 selection.collapse_to(head, goal);
6075
6076 let transpose_start = display_map
6077 .buffer_snapshot
6078 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6079 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6080 let transpose_end = display_map
6081 .buffer_snapshot
6082 .clip_offset(transpose_offset + 1, Bias::Right);
6083 if let Some(ch) =
6084 display_map.buffer_snapshot.chars_at(transpose_start).next()
6085 {
6086 edits.push((transpose_start..transpose_offset, String::new()));
6087 edits.push((transpose_end..transpose_end, ch.to_string()));
6088 }
6089 }
6090 });
6091 edits
6092 });
6093 this.buffer
6094 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6095 let selections = this.selections.all::<usize>(cx);
6096 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6097 s.select(selections);
6098 });
6099 });
6100 }
6101
6102 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6103 let mut text = String::new();
6104 let buffer = self.buffer.read(cx).snapshot(cx);
6105 let mut selections = self.selections.all::<Point>(cx);
6106 let mut clipboard_selections = Vec::with_capacity(selections.len());
6107 {
6108 let max_point = buffer.max_point();
6109 let mut is_first = true;
6110 for selection in &mut selections {
6111 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6112 if is_entire_line {
6113 selection.start = Point::new(selection.start.row, 0);
6114 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6115 selection.goal = SelectionGoal::None;
6116 }
6117 if is_first {
6118 is_first = false;
6119 } else {
6120 text += "\n";
6121 }
6122 let mut len = 0;
6123 for chunk in buffer.text_for_range(selection.start..selection.end) {
6124 text.push_str(chunk);
6125 len += chunk.len();
6126 }
6127 clipboard_selections.push(ClipboardSelection {
6128 len,
6129 is_entire_line,
6130 first_line_indent: buffer
6131 .indent_size_for_line(MultiBufferRow(selection.start.row))
6132 .len,
6133 });
6134 }
6135 }
6136
6137 self.transact(cx, |this, cx| {
6138 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6139 s.select(selections);
6140 });
6141 this.insert("", cx);
6142 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6143 });
6144 }
6145
6146 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6147 let selections = self.selections.all::<Point>(cx);
6148 let buffer = self.buffer.read(cx).read(cx);
6149 let mut text = String::new();
6150
6151 let mut clipboard_selections = Vec::with_capacity(selections.len());
6152 {
6153 let max_point = buffer.max_point();
6154 let mut is_first = true;
6155 for selection in selections.iter() {
6156 let mut start = selection.start;
6157 let mut end = selection.end;
6158 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6159 if is_entire_line {
6160 start = Point::new(start.row, 0);
6161 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6162 }
6163 if is_first {
6164 is_first = false;
6165 } else {
6166 text += "\n";
6167 }
6168 let mut len = 0;
6169 for chunk in buffer.text_for_range(start..end) {
6170 text.push_str(chunk);
6171 len += chunk.len();
6172 }
6173 clipboard_selections.push(ClipboardSelection {
6174 len,
6175 is_entire_line,
6176 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6177 });
6178 }
6179 }
6180
6181 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6182 }
6183
6184 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6185 if self.read_only(cx) {
6186 return;
6187 }
6188
6189 self.transact(cx, |this, cx| {
6190 if let Some(item) = cx.read_from_clipboard() {
6191 let clipboard_text = Cow::Borrowed(item.text());
6192 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6193 let old_selections = this.selections.all::<usize>(cx);
6194 let all_selections_were_entire_line =
6195 clipboard_selections.iter().all(|s| s.is_entire_line);
6196 let first_selection_indent_column =
6197 clipboard_selections.first().map(|s| s.first_line_indent);
6198 if clipboard_selections.len() != old_selections.len() {
6199 clipboard_selections.drain(..);
6200 }
6201
6202 this.buffer.update(cx, |buffer, cx| {
6203 let snapshot = buffer.read(cx);
6204 let mut start_offset = 0;
6205 let mut edits = Vec::new();
6206 let mut original_indent_columns = Vec::new();
6207 let line_mode = this.selections.line_mode;
6208 for (ix, selection) in old_selections.iter().enumerate() {
6209 let to_insert;
6210 let entire_line;
6211 let original_indent_column;
6212 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6213 let end_offset = start_offset + clipboard_selection.len;
6214 to_insert = &clipboard_text[start_offset..end_offset];
6215 entire_line = clipboard_selection.is_entire_line;
6216 start_offset = end_offset + 1;
6217 original_indent_column =
6218 Some(clipboard_selection.first_line_indent);
6219 } else {
6220 to_insert = clipboard_text.as_str();
6221 entire_line = all_selections_were_entire_line;
6222 original_indent_column = first_selection_indent_column
6223 }
6224
6225 // If the corresponding selection was empty when this slice of the
6226 // clipboard text was written, then the entire line containing the
6227 // selection was copied. If this selection is also currently empty,
6228 // then paste the line before the current line of the buffer.
6229 let range = if selection.is_empty() && !line_mode && entire_line {
6230 let column = selection.start.to_point(&snapshot).column as usize;
6231 let line_start = selection.start - column;
6232 line_start..line_start
6233 } else {
6234 selection.range()
6235 };
6236
6237 edits.push((range, to_insert));
6238 original_indent_columns.extend(original_indent_column);
6239 }
6240 drop(snapshot);
6241
6242 buffer.edit(
6243 edits,
6244 Some(AutoindentMode::Block {
6245 original_indent_columns,
6246 }),
6247 cx,
6248 );
6249 });
6250
6251 let selections = this.selections.all::<usize>(cx);
6252 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6253 } else {
6254 this.insert(&clipboard_text, cx);
6255 }
6256 }
6257 });
6258 }
6259
6260 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6261 if self.read_only(cx) {
6262 return;
6263 }
6264
6265 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6266 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6267 self.change_selections(None, cx, |s| {
6268 s.select_anchors(selections.to_vec());
6269 });
6270 }
6271 self.request_autoscroll(Autoscroll::fit(), cx);
6272 self.unmark_text(cx);
6273 self.refresh_inline_completion(true, cx);
6274 cx.emit(EditorEvent::Edited);
6275 cx.emit(EditorEvent::TransactionUndone {
6276 transaction_id: tx_id,
6277 });
6278 }
6279 }
6280
6281 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6282 if self.read_only(cx) {
6283 return;
6284 }
6285
6286 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6287 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6288 {
6289 self.change_selections(None, cx, |s| {
6290 s.select_anchors(selections.to_vec());
6291 });
6292 }
6293 self.request_autoscroll(Autoscroll::fit(), cx);
6294 self.unmark_text(cx);
6295 self.refresh_inline_completion(true, cx);
6296 cx.emit(EditorEvent::Edited);
6297 }
6298 }
6299
6300 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6301 self.buffer
6302 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6303 }
6304
6305 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6306 self.buffer
6307 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6308 }
6309
6310 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6311 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6312 let line_mode = s.line_mode;
6313 s.move_with(|map, selection| {
6314 let cursor = if selection.is_empty() && !line_mode {
6315 movement::left(map, selection.start)
6316 } else {
6317 selection.start
6318 };
6319 selection.collapse_to(cursor, SelectionGoal::None);
6320 });
6321 })
6322 }
6323
6324 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6325 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6326 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6327 })
6328 }
6329
6330 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6331 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6332 let line_mode = s.line_mode;
6333 s.move_with(|map, selection| {
6334 let cursor = if selection.is_empty() && !line_mode {
6335 movement::right(map, selection.end)
6336 } else {
6337 selection.end
6338 };
6339 selection.collapse_to(cursor, SelectionGoal::None)
6340 });
6341 })
6342 }
6343
6344 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6345 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6346 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6347 })
6348 }
6349
6350 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6351 if self.take_rename(true, cx).is_some() {
6352 return;
6353 }
6354
6355 if matches!(self.mode, EditorMode::SingleLine) {
6356 cx.propagate();
6357 return;
6358 }
6359
6360 let text_layout_details = &self.text_layout_details(cx);
6361
6362 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6363 let line_mode = s.line_mode;
6364 s.move_with(|map, selection| {
6365 if !selection.is_empty() && !line_mode {
6366 selection.goal = SelectionGoal::None;
6367 }
6368 let (cursor, goal) = movement::up(
6369 map,
6370 selection.start,
6371 selection.goal,
6372 false,
6373 &text_layout_details,
6374 );
6375 selection.collapse_to(cursor, goal);
6376 });
6377 })
6378 }
6379
6380 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6381 if self.take_rename(true, cx).is_some() {
6382 return;
6383 }
6384
6385 if matches!(self.mode, EditorMode::SingleLine) {
6386 cx.propagate();
6387 return;
6388 }
6389
6390 let text_layout_details = &self.text_layout_details(cx);
6391
6392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6393 let line_mode = s.line_mode;
6394 s.move_with(|map, selection| {
6395 if !selection.is_empty() && !line_mode {
6396 selection.goal = SelectionGoal::None;
6397 }
6398 let (cursor, goal) = movement::up_by_rows(
6399 map,
6400 selection.start,
6401 action.lines,
6402 selection.goal,
6403 false,
6404 &text_layout_details,
6405 );
6406 selection.collapse_to(cursor, goal);
6407 });
6408 })
6409 }
6410
6411 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6412 if self.take_rename(true, cx).is_some() {
6413 return;
6414 }
6415
6416 if matches!(self.mode, EditorMode::SingleLine) {
6417 cx.propagate();
6418 return;
6419 }
6420
6421 let text_layout_details = &self.text_layout_details(cx);
6422
6423 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6424 let line_mode = s.line_mode;
6425 s.move_with(|map, selection| {
6426 if !selection.is_empty() && !line_mode {
6427 selection.goal = SelectionGoal::None;
6428 }
6429 let (cursor, goal) = movement::down_by_rows(
6430 map,
6431 selection.start,
6432 action.lines,
6433 selection.goal,
6434 false,
6435 &text_layout_details,
6436 );
6437 selection.collapse_to(cursor, goal);
6438 });
6439 })
6440 }
6441
6442 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6443 let text_layout_details = &self.text_layout_details(cx);
6444 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6445 s.move_heads_with(|map, head, goal| {
6446 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6447 })
6448 })
6449 }
6450
6451 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6452 let text_layout_details = &self.text_layout_details(cx);
6453 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6454 s.move_heads_with(|map, head, goal| {
6455 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6456 })
6457 })
6458 }
6459
6460 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6461 if self.take_rename(true, cx).is_some() {
6462 return;
6463 }
6464
6465 if matches!(self.mode, EditorMode::SingleLine) {
6466 cx.propagate();
6467 return;
6468 }
6469
6470 let row_count = if let Some(row_count) = self.visible_line_count() {
6471 row_count as u32 - 1
6472 } else {
6473 return;
6474 };
6475
6476 let autoscroll = if action.center_cursor {
6477 Autoscroll::center()
6478 } else {
6479 Autoscroll::fit()
6480 };
6481
6482 let text_layout_details = &self.text_layout_details(cx);
6483
6484 self.change_selections(Some(autoscroll), cx, |s| {
6485 let line_mode = s.line_mode;
6486 s.move_with(|map, selection| {
6487 if !selection.is_empty() && !line_mode {
6488 selection.goal = SelectionGoal::None;
6489 }
6490 let (cursor, goal) = movement::up_by_rows(
6491 map,
6492 selection.end,
6493 row_count,
6494 selection.goal,
6495 false,
6496 &text_layout_details,
6497 );
6498 selection.collapse_to(cursor, goal);
6499 });
6500 });
6501 }
6502
6503 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6504 let text_layout_details = &self.text_layout_details(cx);
6505 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6506 s.move_heads_with(|map, head, goal| {
6507 movement::up(map, head, goal, false, &text_layout_details)
6508 })
6509 })
6510 }
6511
6512 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6513 self.take_rename(true, cx);
6514
6515 if self.mode == EditorMode::SingleLine {
6516 cx.propagate();
6517 return;
6518 }
6519
6520 let text_layout_details = &self.text_layout_details(cx);
6521 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6522 let line_mode = s.line_mode;
6523 s.move_with(|map, selection| {
6524 if !selection.is_empty() && !line_mode {
6525 selection.goal = SelectionGoal::None;
6526 }
6527 let (cursor, goal) = movement::down(
6528 map,
6529 selection.end,
6530 selection.goal,
6531 false,
6532 &text_layout_details,
6533 );
6534 selection.collapse_to(cursor, goal);
6535 });
6536 });
6537 }
6538
6539 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6540 if self.take_rename(true, cx).is_some() {
6541 return;
6542 }
6543
6544 if self
6545 .context_menu
6546 .write()
6547 .as_mut()
6548 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6549 .unwrap_or(false)
6550 {
6551 return;
6552 }
6553
6554 if matches!(self.mode, EditorMode::SingleLine) {
6555 cx.propagate();
6556 return;
6557 }
6558
6559 let row_count = if let Some(row_count) = self.visible_line_count() {
6560 row_count as u32 - 1
6561 } else {
6562 return;
6563 };
6564
6565 let autoscroll = if action.center_cursor {
6566 Autoscroll::center()
6567 } else {
6568 Autoscroll::fit()
6569 };
6570
6571 let text_layout_details = &self.text_layout_details(cx);
6572 self.change_selections(Some(autoscroll), cx, |s| {
6573 let line_mode = s.line_mode;
6574 s.move_with(|map, selection| {
6575 if !selection.is_empty() && !line_mode {
6576 selection.goal = SelectionGoal::None;
6577 }
6578 let (cursor, goal) = movement::down_by_rows(
6579 map,
6580 selection.end,
6581 row_count,
6582 selection.goal,
6583 false,
6584 &text_layout_details,
6585 );
6586 selection.collapse_to(cursor, goal);
6587 });
6588 });
6589 }
6590
6591 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6592 let text_layout_details = &self.text_layout_details(cx);
6593 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6594 s.move_heads_with(|map, head, goal| {
6595 movement::down(map, head, goal, false, &text_layout_details)
6596 })
6597 });
6598 }
6599
6600 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6601 if let Some(context_menu) = self.context_menu.write().as_mut() {
6602 context_menu.select_first(self.project.as_ref(), cx);
6603 }
6604 }
6605
6606 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6607 if let Some(context_menu) = self.context_menu.write().as_mut() {
6608 context_menu.select_prev(self.project.as_ref(), cx);
6609 }
6610 }
6611
6612 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6613 if let Some(context_menu) = self.context_menu.write().as_mut() {
6614 context_menu.select_next(self.project.as_ref(), cx);
6615 }
6616 }
6617
6618 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6619 if let Some(context_menu) = self.context_menu.write().as_mut() {
6620 context_menu.select_last(self.project.as_ref(), cx);
6621 }
6622 }
6623
6624 pub fn move_to_previous_word_start(
6625 &mut self,
6626 _: &MoveToPreviousWordStart,
6627 cx: &mut ViewContext<Self>,
6628 ) {
6629 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6630 s.move_cursors_with(|map, head, _| {
6631 (
6632 movement::previous_word_start(map, head),
6633 SelectionGoal::None,
6634 )
6635 });
6636 })
6637 }
6638
6639 pub fn move_to_previous_subword_start(
6640 &mut self,
6641 _: &MoveToPreviousSubwordStart,
6642 cx: &mut ViewContext<Self>,
6643 ) {
6644 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6645 s.move_cursors_with(|map, head, _| {
6646 (
6647 movement::previous_subword_start(map, head),
6648 SelectionGoal::None,
6649 )
6650 });
6651 })
6652 }
6653
6654 pub fn select_to_previous_word_start(
6655 &mut self,
6656 _: &SelectToPreviousWordStart,
6657 cx: &mut ViewContext<Self>,
6658 ) {
6659 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6660 s.move_heads_with(|map, head, _| {
6661 (
6662 movement::previous_word_start(map, head),
6663 SelectionGoal::None,
6664 )
6665 });
6666 })
6667 }
6668
6669 pub fn select_to_previous_subword_start(
6670 &mut self,
6671 _: &SelectToPreviousSubwordStart,
6672 cx: &mut ViewContext<Self>,
6673 ) {
6674 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6675 s.move_heads_with(|map, head, _| {
6676 (
6677 movement::previous_subword_start(map, head),
6678 SelectionGoal::None,
6679 )
6680 });
6681 })
6682 }
6683
6684 pub fn delete_to_previous_word_start(
6685 &mut self,
6686 _: &DeleteToPreviousWordStart,
6687 cx: &mut ViewContext<Self>,
6688 ) {
6689 self.transact(cx, |this, cx| {
6690 this.select_autoclose_pair(cx);
6691 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6692 let line_mode = s.line_mode;
6693 s.move_with(|map, selection| {
6694 if selection.is_empty() && !line_mode {
6695 let cursor = movement::previous_word_start(map, selection.head());
6696 selection.set_head(cursor, SelectionGoal::None);
6697 }
6698 });
6699 });
6700 this.insert("", cx);
6701 });
6702 }
6703
6704 pub fn delete_to_previous_subword_start(
6705 &mut self,
6706 _: &DeleteToPreviousSubwordStart,
6707 cx: &mut ViewContext<Self>,
6708 ) {
6709 self.transact(cx, |this, cx| {
6710 this.select_autoclose_pair(cx);
6711 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6712 let line_mode = s.line_mode;
6713 s.move_with(|map, selection| {
6714 if selection.is_empty() && !line_mode {
6715 let cursor = movement::previous_subword_start(map, selection.head());
6716 selection.set_head(cursor, SelectionGoal::None);
6717 }
6718 });
6719 });
6720 this.insert("", cx);
6721 });
6722 }
6723
6724 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6725 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6726 s.move_cursors_with(|map, head, _| {
6727 (movement::next_word_end(map, head), SelectionGoal::None)
6728 });
6729 })
6730 }
6731
6732 pub fn move_to_next_subword_end(
6733 &mut self,
6734 _: &MoveToNextSubwordEnd,
6735 cx: &mut ViewContext<Self>,
6736 ) {
6737 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6738 s.move_cursors_with(|map, head, _| {
6739 (movement::next_subword_end(map, head), SelectionGoal::None)
6740 });
6741 })
6742 }
6743
6744 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6745 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6746 s.move_heads_with(|map, head, _| {
6747 (movement::next_word_end(map, head), SelectionGoal::None)
6748 });
6749 })
6750 }
6751
6752 pub fn select_to_next_subword_end(
6753 &mut self,
6754 _: &SelectToNextSubwordEnd,
6755 cx: &mut ViewContext<Self>,
6756 ) {
6757 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6758 s.move_heads_with(|map, head, _| {
6759 (movement::next_subword_end(map, head), SelectionGoal::None)
6760 });
6761 })
6762 }
6763
6764 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6765 self.transact(cx, |this, cx| {
6766 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6767 let line_mode = s.line_mode;
6768 s.move_with(|map, selection| {
6769 if selection.is_empty() && !line_mode {
6770 let cursor = movement::next_word_end(map, selection.head());
6771 selection.set_head(cursor, SelectionGoal::None);
6772 }
6773 });
6774 });
6775 this.insert("", cx);
6776 });
6777 }
6778
6779 pub fn delete_to_next_subword_end(
6780 &mut self,
6781 _: &DeleteToNextSubwordEnd,
6782 cx: &mut ViewContext<Self>,
6783 ) {
6784 self.transact(cx, |this, cx| {
6785 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6786 s.move_with(|map, selection| {
6787 if selection.is_empty() {
6788 let cursor = movement::next_subword_end(map, selection.head());
6789 selection.set_head(cursor, SelectionGoal::None);
6790 }
6791 });
6792 });
6793 this.insert("", cx);
6794 });
6795 }
6796
6797 pub fn move_to_beginning_of_line(
6798 &mut self,
6799 action: &MoveToBeginningOfLine,
6800 cx: &mut ViewContext<Self>,
6801 ) {
6802 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6803 s.move_cursors_with(|map, head, _| {
6804 (
6805 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6806 SelectionGoal::None,
6807 )
6808 });
6809 })
6810 }
6811
6812 pub fn select_to_beginning_of_line(
6813 &mut self,
6814 action: &SelectToBeginningOfLine,
6815 cx: &mut ViewContext<Self>,
6816 ) {
6817 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6818 s.move_heads_with(|map, head, _| {
6819 (
6820 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6821 SelectionGoal::None,
6822 )
6823 });
6824 });
6825 }
6826
6827 pub fn delete_to_beginning_of_line(
6828 &mut self,
6829 _: &DeleteToBeginningOfLine,
6830 cx: &mut ViewContext<Self>,
6831 ) {
6832 self.transact(cx, |this, cx| {
6833 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6834 s.move_with(|_, selection| {
6835 selection.reversed = true;
6836 });
6837 });
6838
6839 this.select_to_beginning_of_line(
6840 &SelectToBeginningOfLine {
6841 stop_at_soft_wraps: false,
6842 },
6843 cx,
6844 );
6845 this.backspace(&Backspace, cx);
6846 });
6847 }
6848
6849 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6850 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6851 s.move_cursors_with(|map, head, _| {
6852 (
6853 movement::line_end(map, head, action.stop_at_soft_wraps),
6854 SelectionGoal::None,
6855 )
6856 });
6857 })
6858 }
6859
6860 pub fn select_to_end_of_line(
6861 &mut self,
6862 action: &SelectToEndOfLine,
6863 cx: &mut ViewContext<Self>,
6864 ) {
6865 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6866 s.move_heads_with(|map, head, _| {
6867 (
6868 movement::line_end(map, head, action.stop_at_soft_wraps),
6869 SelectionGoal::None,
6870 )
6871 });
6872 })
6873 }
6874
6875 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6876 self.transact(cx, |this, cx| {
6877 this.select_to_end_of_line(
6878 &SelectToEndOfLine {
6879 stop_at_soft_wraps: false,
6880 },
6881 cx,
6882 );
6883 this.delete(&Delete, cx);
6884 });
6885 }
6886
6887 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6888 self.transact(cx, |this, cx| {
6889 this.select_to_end_of_line(
6890 &SelectToEndOfLine {
6891 stop_at_soft_wraps: false,
6892 },
6893 cx,
6894 );
6895 this.cut(&Cut, cx);
6896 });
6897 }
6898
6899 pub fn move_to_start_of_paragraph(
6900 &mut self,
6901 _: &MoveToStartOfParagraph,
6902 cx: &mut ViewContext<Self>,
6903 ) {
6904 if matches!(self.mode, EditorMode::SingleLine) {
6905 cx.propagate();
6906 return;
6907 }
6908
6909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6910 s.move_with(|map, selection| {
6911 selection.collapse_to(
6912 movement::start_of_paragraph(map, selection.head(), 1),
6913 SelectionGoal::None,
6914 )
6915 });
6916 })
6917 }
6918
6919 pub fn move_to_end_of_paragraph(
6920 &mut self,
6921 _: &MoveToEndOfParagraph,
6922 cx: &mut ViewContext<Self>,
6923 ) {
6924 if matches!(self.mode, EditorMode::SingleLine) {
6925 cx.propagate();
6926 return;
6927 }
6928
6929 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6930 s.move_with(|map, selection| {
6931 selection.collapse_to(
6932 movement::end_of_paragraph(map, selection.head(), 1),
6933 SelectionGoal::None,
6934 )
6935 });
6936 })
6937 }
6938
6939 pub fn select_to_start_of_paragraph(
6940 &mut self,
6941 _: &SelectToStartOfParagraph,
6942 cx: &mut ViewContext<Self>,
6943 ) {
6944 if matches!(self.mode, EditorMode::SingleLine) {
6945 cx.propagate();
6946 return;
6947 }
6948
6949 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6950 s.move_heads_with(|map, head, _| {
6951 (
6952 movement::start_of_paragraph(map, head, 1),
6953 SelectionGoal::None,
6954 )
6955 });
6956 })
6957 }
6958
6959 pub fn select_to_end_of_paragraph(
6960 &mut self,
6961 _: &SelectToEndOfParagraph,
6962 cx: &mut ViewContext<Self>,
6963 ) {
6964 if matches!(self.mode, EditorMode::SingleLine) {
6965 cx.propagate();
6966 return;
6967 }
6968
6969 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6970 s.move_heads_with(|map, head, _| {
6971 (
6972 movement::end_of_paragraph(map, head, 1),
6973 SelectionGoal::None,
6974 )
6975 });
6976 })
6977 }
6978
6979 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
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.select_ranges(vec![0..0]);
6987 });
6988 }
6989
6990 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6991 let mut selection = self.selections.last::<Point>(cx);
6992 selection.set_head(Point::zero(), SelectionGoal::None);
6993
6994 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6995 s.select(vec![selection]);
6996 });
6997 }
6998
6999 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7000 if matches!(self.mode, EditorMode::SingleLine) {
7001 cx.propagate();
7002 return;
7003 }
7004
7005 let cursor = self.buffer.read(cx).read(cx).len();
7006 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7007 s.select_ranges(vec![cursor..cursor])
7008 });
7009 }
7010
7011 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7012 self.nav_history = nav_history;
7013 }
7014
7015 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7016 self.nav_history.as_ref()
7017 }
7018
7019 fn push_to_nav_history(
7020 &mut self,
7021 cursor_anchor: Anchor,
7022 new_position: Option<Point>,
7023 cx: &mut ViewContext<Self>,
7024 ) {
7025 if let Some(nav_history) = self.nav_history.as_mut() {
7026 let buffer = self.buffer.read(cx).read(cx);
7027 let cursor_position = cursor_anchor.to_point(&buffer);
7028 let scroll_state = self.scroll_manager.anchor();
7029 let scroll_top_row = scroll_state.top_row(&buffer);
7030 drop(buffer);
7031
7032 if let Some(new_position) = new_position {
7033 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7034 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7035 return;
7036 }
7037 }
7038
7039 nav_history.push(
7040 Some(NavigationData {
7041 cursor_anchor,
7042 cursor_position,
7043 scroll_anchor: scroll_state,
7044 scroll_top_row,
7045 }),
7046 cx,
7047 );
7048 }
7049 }
7050
7051 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7052 let buffer = self.buffer.read(cx).snapshot(cx);
7053 let mut selection = self.selections.first::<usize>(cx);
7054 selection.set_head(buffer.len(), SelectionGoal::None);
7055 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7056 s.select(vec![selection]);
7057 });
7058 }
7059
7060 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7061 let end = self.buffer.read(cx).read(cx).len();
7062 self.change_selections(None, cx, |s| {
7063 s.select_ranges(vec![0..end]);
7064 });
7065 }
7066
7067 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7068 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7069 let mut selections = self.selections.all::<Point>(cx);
7070 let max_point = display_map.buffer_snapshot.max_point();
7071 for selection in &mut selections {
7072 let rows = selection.spanned_rows(true, &display_map);
7073 selection.start = Point::new(rows.start.0, 0);
7074 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7075 selection.reversed = false;
7076 }
7077 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7078 s.select(selections);
7079 });
7080 }
7081
7082 pub fn split_selection_into_lines(
7083 &mut self,
7084 _: &SplitSelectionIntoLines,
7085 cx: &mut ViewContext<Self>,
7086 ) {
7087 let mut to_unfold = Vec::new();
7088 let mut new_selection_ranges = Vec::new();
7089 {
7090 let selections = self.selections.all::<Point>(cx);
7091 let buffer = self.buffer.read(cx).read(cx);
7092 for selection in selections {
7093 for row in selection.start.row..selection.end.row {
7094 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7095 new_selection_ranges.push(cursor..cursor);
7096 }
7097 new_selection_ranges.push(selection.end..selection.end);
7098 to_unfold.push(selection.start..selection.end);
7099 }
7100 }
7101 self.unfold_ranges(to_unfold, true, true, cx);
7102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7103 s.select_ranges(new_selection_ranges);
7104 });
7105 }
7106
7107 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7108 self.add_selection(true, cx);
7109 }
7110
7111 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7112 self.add_selection(false, cx);
7113 }
7114
7115 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7116 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7117 let mut selections = self.selections.all::<Point>(cx);
7118 let text_layout_details = self.text_layout_details(cx);
7119 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7120 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7121 let range = oldest_selection.display_range(&display_map).sorted();
7122
7123 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7124 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7125 let positions = start_x.min(end_x)..start_x.max(end_x);
7126
7127 selections.clear();
7128 let mut stack = Vec::new();
7129 for row in range.start.row().0..=range.end.row().0 {
7130 if let Some(selection) = self.selections.build_columnar_selection(
7131 &display_map,
7132 DisplayRow(row),
7133 &positions,
7134 oldest_selection.reversed,
7135 &text_layout_details,
7136 ) {
7137 stack.push(selection.id);
7138 selections.push(selection);
7139 }
7140 }
7141
7142 if above {
7143 stack.reverse();
7144 }
7145
7146 AddSelectionsState { above, stack }
7147 });
7148
7149 let last_added_selection = *state.stack.last().unwrap();
7150 let mut new_selections = Vec::new();
7151 if above == state.above {
7152 let end_row = if above {
7153 DisplayRow(0)
7154 } else {
7155 display_map.max_point().row()
7156 };
7157
7158 'outer: for selection in selections {
7159 if selection.id == last_added_selection {
7160 let range = selection.display_range(&display_map).sorted();
7161 debug_assert_eq!(range.start.row(), range.end.row());
7162 let mut row = range.start.row();
7163 let positions =
7164 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7165 px(start)..px(end)
7166 } else {
7167 let start_x =
7168 display_map.x_for_display_point(range.start, &text_layout_details);
7169 let end_x =
7170 display_map.x_for_display_point(range.end, &text_layout_details);
7171 start_x.min(end_x)..start_x.max(end_x)
7172 };
7173
7174 while row != end_row {
7175 if above {
7176 row.0 -= 1;
7177 } else {
7178 row.0 += 1;
7179 }
7180
7181 if let Some(new_selection) = self.selections.build_columnar_selection(
7182 &display_map,
7183 row,
7184 &positions,
7185 selection.reversed,
7186 &text_layout_details,
7187 ) {
7188 state.stack.push(new_selection.id);
7189 if above {
7190 new_selections.push(new_selection);
7191 new_selections.push(selection);
7192 } else {
7193 new_selections.push(selection);
7194 new_selections.push(new_selection);
7195 }
7196
7197 continue 'outer;
7198 }
7199 }
7200 }
7201
7202 new_selections.push(selection);
7203 }
7204 } else {
7205 new_selections = selections;
7206 new_selections.retain(|s| s.id != last_added_selection);
7207 state.stack.pop();
7208 }
7209
7210 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7211 s.select(new_selections);
7212 });
7213 if state.stack.len() > 1 {
7214 self.add_selections_state = Some(state);
7215 }
7216 }
7217
7218 pub fn select_next_match_internal(
7219 &mut self,
7220 display_map: &DisplaySnapshot,
7221 replace_newest: bool,
7222 autoscroll: Option<Autoscroll>,
7223 cx: &mut ViewContext<Self>,
7224 ) -> Result<()> {
7225 fn select_next_match_ranges(
7226 this: &mut Editor,
7227 range: Range<usize>,
7228 replace_newest: bool,
7229 auto_scroll: Option<Autoscroll>,
7230 cx: &mut ViewContext<Editor>,
7231 ) {
7232 this.unfold_ranges([range.clone()], false, true, cx);
7233 this.change_selections(auto_scroll, cx, |s| {
7234 if replace_newest {
7235 s.delete(s.newest_anchor().id);
7236 }
7237 s.insert_range(range.clone());
7238 });
7239 }
7240
7241 let buffer = &display_map.buffer_snapshot;
7242 let mut selections = self.selections.all::<usize>(cx);
7243 if let Some(mut select_next_state) = self.select_next_state.take() {
7244 let query = &select_next_state.query;
7245 if !select_next_state.done {
7246 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7247 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7248 let mut next_selected_range = None;
7249
7250 let bytes_after_last_selection =
7251 buffer.bytes_in_range(last_selection.end..buffer.len());
7252 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7253 let query_matches = query
7254 .stream_find_iter(bytes_after_last_selection)
7255 .map(|result| (last_selection.end, result))
7256 .chain(
7257 query
7258 .stream_find_iter(bytes_before_first_selection)
7259 .map(|result| (0, result)),
7260 );
7261
7262 for (start_offset, query_match) in query_matches {
7263 let query_match = query_match.unwrap(); // can only fail due to I/O
7264 let offset_range =
7265 start_offset + query_match.start()..start_offset + query_match.end();
7266 let display_range = offset_range.start.to_display_point(&display_map)
7267 ..offset_range.end.to_display_point(&display_map);
7268
7269 if !select_next_state.wordwise
7270 || (!movement::is_inside_word(&display_map, display_range.start)
7271 && !movement::is_inside_word(&display_map, display_range.end))
7272 {
7273 // TODO: This is n^2, because we might check all the selections
7274 if !selections
7275 .iter()
7276 .any(|selection| selection.range().overlaps(&offset_range))
7277 {
7278 next_selected_range = Some(offset_range);
7279 break;
7280 }
7281 }
7282 }
7283
7284 if let Some(next_selected_range) = next_selected_range {
7285 select_next_match_ranges(
7286 self,
7287 next_selected_range,
7288 replace_newest,
7289 autoscroll,
7290 cx,
7291 );
7292 } else {
7293 select_next_state.done = true;
7294 }
7295 }
7296
7297 self.select_next_state = Some(select_next_state);
7298 } else {
7299 let mut only_carets = true;
7300 let mut same_text_selected = true;
7301 let mut selected_text = None;
7302
7303 let mut selections_iter = selections.iter().peekable();
7304 while let Some(selection) = selections_iter.next() {
7305 if selection.start != selection.end {
7306 only_carets = false;
7307 }
7308
7309 if same_text_selected {
7310 if selected_text.is_none() {
7311 selected_text =
7312 Some(buffer.text_for_range(selection.range()).collect::<String>());
7313 }
7314
7315 if let Some(next_selection) = selections_iter.peek() {
7316 if next_selection.range().len() == selection.range().len() {
7317 let next_selected_text = buffer
7318 .text_for_range(next_selection.range())
7319 .collect::<String>();
7320 if Some(next_selected_text) != selected_text {
7321 same_text_selected = false;
7322 selected_text = None;
7323 }
7324 } else {
7325 same_text_selected = false;
7326 selected_text = None;
7327 }
7328 }
7329 }
7330 }
7331
7332 if only_carets {
7333 for selection in &mut selections {
7334 let word_range = movement::surrounding_word(
7335 &display_map,
7336 selection.start.to_display_point(&display_map),
7337 );
7338 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7339 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7340 selection.goal = SelectionGoal::None;
7341 selection.reversed = false;
7342 select_next_match_ranges(
7343 self,
7344 selection.start..selection.end,
7345 replace_newest,
7346 autoscroll,
7347 cx,
7348 );
7349 }
7350
7351 if selections.len() == 1 {
7352 let selection = selections
7353 .last()
7354 .expect("ensured that there's only one selection");
7355 let query = buffer
7356 .text_for_range(selection.start..selection.end)
7357 .collect::<String>();
7358 let is_empty = query.is_empty();
7359 let select_state = SelectNextState {
7360 query: AhoCorasick::new(&[query])?,
7361 wordwise: true,
7362 done: is_empty,
7363 };
7364 self.select_next_state = Some(select_state);
7365 } else {
7366 self.select_next_state = None;
7367 }
7368 } else if let Some(selected_text) = selected_text {
7369 self.select_next_state = Some(SelectNextState {
7370 query: AhoCorasick::new(&[selected_text])?,
7371 wordwise: false,
7372 done: false,
7373 });
7374 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7375 }
7376 }
7377 Ok(())
7378 }
7379
7380 pub fn select_all_matches(
7381 &mut self,
7382 _action: &SelectAllMatches,
7383 cx: &mut ViewContext<Self>,
7384 ) -> Result<()> {
7385 self.push_to_selection_history();
7386 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7387
7388 self.select_next_match_internal(&display_map, false, None, cx)?;
7389 let Some(select_next_state) = self.select_next_state.as_mut() else {
7390 return Ok(());
7391 };
7392 if select_next_state.done {
7393 return Ok(());
7394 }
7395
7396 let mut new_selections = self.selections.all::<usize>(cx);
7397
7398 let buffer = &display_map.buffer_snapshot;
7399 let query_matches = select_next_state
7400 .query
7401 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7402
7403 for query_match in query_matches {
7404 let query_match = query_match.unwrap(); // can only fail due to I/O
7405 let offset_range = query_match.start()..query_match.end();
7406 let display_range = offset_range.start.to_display_point(&display_map)
7407 ..offset_range.end.to_display_point(&display_map);
7408
7409 if !select_next_state.wordwise
7410 || (!movement::is_inside_word(&display_map, display_range.start)
7411 && !movement::is_inside_word(&display_map, display_range.end))
7412 {
7413 self.selections.change_with(cx, |selections| {
7414 new_selections.push(Selection {
7415 id: selections.new_selection_id(),
7416 start: offset_range.start,
7417 end: offset_range.end,
7418 reversed: false,
7419 goal: SelectionGoal::None,
7420 });
7421 });
7422 }
7423 }
7424
7425 new_selections.sort_by_key(|selection| selection.start);
7426 let mut ix = 0;
7427 while ix + 1 < new_selections.len() {
7428 let current_selection = &new_selections[ix];
7429 let next_selection = &new_selections[ix + 1];
7430 if current_selection.range().overlaps(&next_selection.range()) {
7431 if current_selection.id < next_selection.id {
7432 new_selections.remove(ix + 1);
7433 } else {
7434 new_selections.remove(ix);
7435 }
7436 } else {
7437 ix += 1;
7438 }
7439 }
7440
7441 select_next_state.done = true;
7442 self.unfold_ranges(
7443 new_selections.iter().map(|selection| selection.range()),
7444 false,
7445 false,
7446 cx,
7447 );
7448 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7449 selections.select(new_selections)
7450 });
7451
7452 Ok(())
7453 }
7454
7455 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7456 self.push_to_selection_history();
7457 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7458 self.select_next_match_internal(
7459 &display_map,
7460 action.replace_newest,
7461 Some(Autoscroll::newest()),
7462 cx,
7463 )?;
7464 Ok(())
7465 }
7466
7467 pub fn select_previous(
7468 &mut self,
7469 action: &SelectPrevious,
7470 cx: &mut ViewContext<Self>,
7471 ) -> Result<()> {
7472 self.push_to_selection_history();
7473 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7474 let buffer = &display_map.buffer_snapshot;
7475 let mut selections = self.selections.all::<usize>(cx);
7476 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7477 let query = &select_prev_state.query;
7478 if !select_prev_state.done {
7479 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7480 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7481 let mut next_selected_range = None;
7482 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7483 let bytes_before_last_selection =
7484 buffer.reversed_bytes_in_range(0..last_selection.start);
7485 let bytes_after_first_selection =
7486 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7487 let query_matches = query
7488 .stream_find_iter(bytes_before_last_selection)
7489 .map(|result| (last_selection.start, result))
7490 .chain(
7491 query
7492 .stream_find_iter(bytes_after_first_selection)
7493 .map(|result| (buffer.len(), result)),
7494 );
7495 for (end_offset, query_match) in query_matches {
7496 let query_match = query_match.unwrap(); // can only fail due to I/O
7497 let offset_range =
7498 end_offset - query_match.end()..end_offset - query_match.start();
7499 let display_range = offset_range.start.to_display_point(&display_map)
7500 ..offset_range.end.to_display_point(&display_map);
7501
7502 if !select_prev_state.wordwise
7503 || (!movement::is_inside_word(&display_map, display_range.start)
7504 && !movement::is_inside_word(&display_map, display_range.end))
7505 {
7506 next_selected_range = Some(offset_range);
7507 break;
7508 }
7509 }
7510
7511 if let Some(next_selected_range) = next_selected_range {
7512 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7513 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7514 if action.replace_newest {
7515 s.delete(s.newest_anchor().id);
7516 }
7517 s.insert_range(next_selected_range);
7518 });
7519 } else {
7520 select_prev_state.done = true;
7521 }
7522 }
7523
7524 self.select_prev_state = Some(select_prev_state);
7525 } else {
7526 let mut only_carets = true;
7527 let mut same_text_selected = true;
7528 let mut selected_text = None;
7529
7530 let mut selections_iter = selections.iter().peekable();
7531 while let Some(selection) = selections_iter.next() {
7532 if selection.start != selection.end {
7533 only_carets = false;
7534 }
7535
7536 if same_text_selected {
7537 if selected_text.is_none() {
7538 selected_text =
7539 Some(buffer.text_for_range(selection.range()).collect::<String>());
7540 }
7541
7542 if let Some(next_selection) = selections_iter.peek() {
7543 if next_selection.range().len() == selection.range().len() {
7544 let next_selected_text = buffer
7545 .text_for_range(next_selection.range())
7546 .collect::<String>();
7547 if Some(next_selected_text) != selected_text {
7548 same_text_selected = false;
7549 selected_text = None;
7550 }
7551 } else {
7552 same_text_selected = false;
7553 selected_text = None;
7554 }
7555 }
7556 }
7557 }
7558
7559 if only_carets {
7560 for selection in &mut selections {
7561 let word_range = movement::surrounding_word(
7562 &display_map,
7563 selection.start.to_display_point(&display_map),
7564 );
7565 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7566 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7567 selection.goal = SelectionGoal::None;
7568 selection.reversed = false;
7569 }
7570 if selections.len() == 1 {
7571 let selection = selections
7572 .last()
7573 .expect("ensured that there's only one selection");
7574 let query = buffer
7575 .text_for_range(selection.start..selection.end)
7576 .collect::<String>();
7577 let is_empty = query.is_empty();
7578 let select_state = SelectNextState {
7579 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7580 wordwise: true,
7581 done: is_empty,
7582 };
7583 self.select_prev_state = Some(select_state);
7584 } else {
7585 self.select_prev_state = None;
7586 }
7587
7588 self.unfold_ranges(
7589 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7590 false,
7591 true,
7592 cx,
7593 );
7594 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7595 s.select(selections);
7596 });
7597 } else if let Some(selected_text) = selected_text {
7598 self.select_prev_state = Some(SelectNextState {
7599 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7600 wordwise: false,
7601 done: false,
7602 });
7603 self.select_previous(action, cx)?;
7604 }
7605 }
7606 Ok(())
7607 }
7608
7609 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7610 let text_layout_details = &self.text_layout_details(cx);
7611 self.transact(cx, |this, cx| {
7612 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7613 let mut edits = Vec::new();
7614 let mut selection_edit_ranges = Vec::new();
7615 let mut last_toggled_row = None;
7616 let snapshot = this.buffer.read(cx).read(cx);
7617 let empty_str: Arc<str> = "".into();
7618 let mut suffixes_inserted = Vec::new();
7619
7620 fn comment_prefix_range(
7621 snapshot: &MultiBufferSnapshot,
7622 row: MultiBufferRow,
7623 comment_prefix: &str,
7624 comment_prefix_whitespace: &str,
7625 ) -> Range<Point> {
7626 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7627
7628 let mut line_bytes = snapshot
7629 .bytes_in_range(start..snapshot.max_point())
7630 .flatten()
7631 .copied();
7632
7633 // If this line currently begins with the line comment prefix, then record
7634 // the range containing the prefix.
7635 if line_bytes
7636 .by_ref()
7637 .take(comment_prefix.len())
7638 .eq(comment_prefix.bytes())
7639 {
7640 // Include any whitespace that matches the comment prefix.
7641 let matching_whitespace_len = line_bytes
7642 .zip(comment_prefix_whitespace.bytes())
7643 .take_while(|(a, b)| a == b)
7644 .count() as u32;
7645 let end = Point::new(
7646 start.row,
7647 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7648 );
7649 start..end
7650 } else {
7651 start..start
7652 }
7653 }
7654
7655 fn comment_suffix_range(
7656 snapshot: &MultiBufferSnapshot,
7657 row: MultiBufferRow,
7658 comment_suffix: &str,
7659 comment_suffix_has_leading_space: bool,
7660 ) -> Range<Point> {
7661 let end = Point::new(row.0, snapshot.line_len(row));
7662 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7663
7664 let mut line_end_bytes = snapshot
7665 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7666 .flatten()
7667 .copied();
7668
7669 let leading_space_len = if suffix_start_column > 0
7670 && line_end_bytes.next() == Some(b' ')
7671 && comment_suffix_has_leading_space
7672 {
7673 1
7674 } else {
7675 0
7676 };
7677
7678 // If this line currently begins with the line comment prefix, then record
7679 // the range containing the prefix.
7680 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7681 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7682 start..end
7683 } else {
7684 end..end
7685 }
7686 }
7687
7688 // TODO: Handle selections that cross excerpts
7689 for selection in &mut selections {
7690 let start_column = snapshot
7691 .indent_size_for_line(MultiBufferRow(selection.start.row))
7692 .len;
7693 let language = if let Some(language) =
7694 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7695 {
7696 language
7697 } else {
7698 continue;
7699 };
7700
7701 selection_edit_ranges.clear();
7702
7703 // If multiple selections contain a given row, avoid processing that
7704 // row more than once.
7705 let mut start_row = MultiBufferRow(selection.start.row);
7706 if last_toggled_row == Some(start_row) {
7707 start_row = start_row.next_row();
7708 }
7709 let end_row =
7710 if selection.end.row > selection.start.row && selection.end.column == 0 {
7711 MultiBufferRow(selection.end.row - 1)
7712 } else {
7713 MultiBufferRow(selection.end.row)
7714 };
7715 last_toggled_row = Some(end_row);
7716
7717 if start_row > end_row {
7718 continue;
7719 }
7720
7721 // If the language has line comments, toggle those.
7722 let full_comment_prefixes = language.line_comment_prefixes();
7723 if !full_comment_prefixes.is_empty() {
7724 let first_prefix = full_comment_prefixes
7725 .first()
7726 .expect("prefixes is non-empty");
7727 let prefix_trimmed_lengths = full_comment_prefixes
7728 .iter()
7729 .map(|p| p.trim_end_matches(' ').len())
7730 .collect::<SmallVec<[usize; 4]>>();
7731
7732 let mut all_selection_lines_are_comments = true;
7733
7734 for row in start_row.0..=end_row.0 {
7735 let row = MultiBufferRow(row);
7736 if start_row < end_row && snapshot.is_line_blank(row) {
7737 continue;
7738 }
7739
7740 let prefix_range = full_comment_prefixes
7741 .iter()
7742 .zip(prefix_trimmed_lengths.iter().copied())
7743 .map(|(prefix, trimmed_prefix_len)| {
7744 comment_prefix_range(
7745 snapshot.deref(),
7746 row,
7747 &prefix[..trimmed_prefix_len],
7748 &prefix[trimmed_prefix_len..],
7749 )
7750 })
7751 .max_by_key(|range| range.end.column - range.start.column)
7752 .expect("prefixes is non-empty");
7753
7754 if prefix_range.is_empty() {
7755 all_selection_lines_are_comments = false;
7756 }
7757
7758 selection_edit_ranges.push(prefix_range);
7759 }
7760
7761 if all_selection_lines_are_comments {
7762 edits.extend(
7763 selection_edit_ranges
7764 .iter()
7765 .cloned()
7766 .map(|range| (range, empty_str.clone())),
7767 );
7768 } else {
7769 let min_column = selection_edit_ranges
7770 .iter()
7771 .map(|range| range.start.column)
7772 .min()
7773 .unwrap_or(0);
7774 edits.extend(selection_edit_ranges.iter().map(|range| {
7775 let position = Point::new(range.start.row, min_column);
7776 (position..position, first_prefix.clone())
7777 }));
7778 }
7779 } else if let Some((full_comment_prefix, comment_suffix)) =
7780 language.block_comment_delimiters()
7781 {
7782 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7783 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7784 let prefix_range = comment_prefix_range(
7785 snapshot.deref(),
7786 start_row,
7787 comment_prefix,
7788 comment_prefix_whitespace,
7789 );
7790 let suffix_range = comment_suffix_range(
7791 snapshot.deref(),
7792 end_row,
7793 comment_suffix.trim_start_matches(' '),
7794 comment_suffix.starts_with(' '),
7795 );
7796
7797 if prefix_range.is_empty() || suffix_range.is_empty() {
7798 edits.push((
7799 prefix_range.start..prefix_range.start,
7800 full_comment_prefix.clone(),
7801 ));
7802 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7803 suffixes_inserted.push((end_row, comment_suffix.len()));
7804 } else {
7805 edits.push((prefix_range, empty_str.clone()));
7806 edits.push((suffix_range, empty_str.clone()));
7807 }
7808 } else {
7809 continue;
7810 }
7811 }
7812
7813 drop(snapshot);
7814 this.buffer.update(cx, |buffer, cx| {
7815 buffer.edit(edits, None, cx);
7816 });
7817
7818 // Adjust selections so that they end before any comment suffixes that
7819 // were inserted.
7820 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7821 let mut selections = this.selections.all::<Point>(cx);
7822 let snapshot = this.buffer.read(cx).read(cx);
7823 for selection in &mut selections {
7824 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7825 match row.cmp(&MultiBufferRow(selection.end.row)) {
7826 Ordering::Less => {
7827 suffixes_inserted.next();
7828 continue;
7829 }
7830 Ordering::Greater => break,
7831 Ordering::Equal => {
7832 if selection.end.column == snapshot.line_len(row) {
7833 if selection.is_empty() {
7834 selection.start.column -= suffix_len as u32;
7835 }
7836 selection.end.column -= suffix_len as u32;
7837 }
7838 break;
7839 }
7840 }
7841 }
7842 }
7843
7844 drop(snapshot);
7845 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7846
7847 let selections = this.selections.all::<Point>(cx);
7848 let selections_on_single_row = selections.windows(2).all(|selections| {
7849 selections[0].start.row == selections[1].start.row
7850 && selections[0].end.row == selections[1].end.row
7851 && selections[0].start.row == selections[0].end.row
7852 });
7853 let selections_selecting = selections
7854 .iter()
7855 .any(|selection| selection.start != selection.end);
7856 let advance_downwards = action.advance_downwards
7857 && selections_on_single_row
7858 && !selections_selecting
7859 && this.mode != EditorMode::SingleLine;
7860
7861 if advance_downwards {
7862 let snapshot = this.buffer.read(cx).snapshot(cx);
7863
7864 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7865 s.move_cursors_with(|display_snapshot, display_point, _| {
7866 let mut point = display_point.to_point(display_snapshot);
7867 point.row += 1;
7868 point = snapshot.clip_point(point, Bias::Left);
7869 let display_point = point.to_display_point(display_snapshot);
7870 let goal = SelectionGoal::HorizontalPosition(
7871 display_snapshot
7872 .x_for_display_point(display_point, &text_layout_details)
7873 .into(),
7874 );
7875 (display_point, goal)
7876 })
7877 });
7878 }
7879 });
7880 }
7881
7882 pub fn select_larger_syntax_node(
7883 &mut self,
7884 _: &SelectLargerSyntaxNode,
7885 cx: &mut ViewContext<Self>,
7886 ) {
7887 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7888 let buffer = self.buffer.read(cx).snapshot(cx);
7889 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7890
7891 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7892 let mut selected_larger_node = false;
7893 let new_selections = old_selections
7894 .iter()
7895 .map(|selection| {
7896 let old_range = selection.start..selection.end;
7897 let mut new_range = old_range.clone();
7898 while let Some(containing_range) =
7899 buffer.range_for_syntax_ancestor(new_range.clone())
7900 {
7901 new_range = containing_range;
7902 if !display_map.intersects_fold(new_range.start)
7903 && !display_map.intersects_fold(new_range.end)
7904 {
7905 break;
7906 }
7907 }
7908
7909 selected_larger_node |= new_range != old_range;
7910 Selection {
7911 id: selection.id,
7912 start: new_range.start,
7913 end: new_range.end,
7914 goal: SelectionGoal::None,
7915 reversed: selection.reversed,
7916 }
7917 })
7918 .collect::<Vec<_>>();
7919
7920 if selected_larger_node {
7921 stack.push(old_selections);
7922 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7923 s.select(new_selections);
7924 });
7925 }
7926 self.select_larger_syntax_node_stack = stack;
7927 }
7928
7929 pub fn select_smaller_syntax_node(
7930 &mut self,
7931 _: &SelectSmallerSyntaxNode,
7932 cx: &mut ViewContext<Self>,
7933 ) {
7934 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7935 if let Some(selections) = stack.pop() {
7936 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7937 s.select(selections.to_vec());
7938 });
7939 }
7940 self.select_larger_syntax_node_stack = stack;
7941 }
7942
7943 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7944 let project = self.project.clone();
7945 cx.spawn(|this, mut cx| async move {
7946 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7947 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7948 }) else {
7949 return;
7950 };
7951
7952 let Some(project) = project else {
7953 return;
7954 };
7955
7956 let hide_runnables = project
7957 .update(&mut cx, |project, cx| {
7958 // Do not display any test indicators in non-dev server remote projects.
7959 project.is_remote() && project.ssh_connection_string(cx).is_none()
7960 })
7961 .unwrap_or(true);
7962 if hide_runnables {
7963 return;
7964 }
7965 let new_rows =
7966 cx.background_executor()
7967 .spawn({
7968 let snapshot = display_snapshot.clone();
7969 async move {
7970 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7971 }
7972 })
7973 .await;
7974 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7975
7976 this.update(&mut cx, |this, _| {
7977 this.clear_tasks();
7978 for (key, value) in rows {
7979 this.insert_tasks(key, value);
7980 }
7981 })
7982 .ok();
7983 })
7984 }
7985 fn fetch_runnable_ranges(
7986 snapshot: &DisplaySnapshot,
7987 range: Range<Anchor>,
7988 ) -> Vec<language::RunnableRange> {
7989 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7990 }
7991
7992 fn runnable_rows(
7993 project: Model<Project>,
7994 snapshot: DisplaySnapshot,
7995 runnable_ranges: Vec<RunnableRange>,
7996 mut cx: AsyncWindowContext,
7997 ) -> Vec<((BufferId, u32), RunnableTasks)> {
7998 runnable_ranges
7999 .into_iter()
8000 .filter_map(|mut runnable| {
8001 let tasks = cx
8002 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8003 .ok()?;
8004 if tasks.is_empty() {
8005 return None;
8006 }
8007
8008 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8009
8010 let row = snapshot
8011 .buffer_snapshot
8012 .buffer_line_for_row(MultiBufferRow(point.row))?
8013 .1
8014 .start
8015 .row;
8016
8017 let context_range =
8018 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8019 Some((
8020 (runnable.buffer_id, row),
8021 RunnableTasks {
8022 templates: tasks,
8023 offset: MultiBufferOffset(runnable.run_range.start),
8024 context_range,
8025 column: point.column,
8026 extra_variables: runnable.extra_captures,
8027 },
8028 ))
8029 })
8030 .collect()
8031 }
8032
8033 fn templates_with_tags(
8034 project: &Model<Project>,
8035 runnable: &mut Runnable,
8036 cx: &WindowContext<'_>,
8037 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8038 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
8039 let worktree_id = project
8040 .buffer_for_id(runnable.buffer)
8041 .and_then(|buffer| buffer.read(cx).file())
8042 .map(|file| WorktreeId::from_usize(file.worktree_id()));
8043
8044 (project.task_inventory().clone(), worktree_id)
8045 });
8046
8047 let inventory = inventory.read(cx);
8048 let tags = mem::take(&mut runnable.tags);
8049 let mut tags: Vec<_> = tags
8050 .into_iter()
8051 .flat_map(|tag| {
8052 let tag = tag.0.clone();
8053 inventory
8054 .list_tasks(Some(runnable.language.clone()), worktree_id)
8055 .into_iter()
8056 .filter(move |(_, template)| {
8057 template.tags.iter().any(|source_tag| source_tag == &tag)
8058 })
8059 })
8060 .sorted_by_key(|(kind, _)| kind.to_owned())
8061 .collect();
8062 if let Some((leading_tag_source, _)) = tags.first() {
8063 // Strongest source wins; if we have worktree tag binding, prefer that to
8064 // global and language bindings;
8065 // if we have a global binding, prefer that to language binding.
8066 let first_mismatch = tags
8067 .iter()
8068 .position(|(tag_source, _)| tag_source != leading_tag_source);
8069 if let Some(index) = first_mismatch {
8070 tags.truncate(index);
8071 }
8072 }
8073
8074 tags
8075 }
8076
8077 pub fn move_to_enclosing_bracket(
8078 &mut self,
8079 _: &MoveToEnclosingBracket,
8080 cx: &mut ViewContext<Self>,
8081 ) {
8082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8083 s.move_offsets_with(|snapshot, selection| {
8084 let Some(enclosing_bracket_ranges) =
8085 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8086 else {
8087 return;
8088 };
8089
8090 let mut best_length = usize::MAX;
8091 let mut best_inside = false;
8092 let mut best_in_bracket_range = false;
8093 let mut best_destination = None;
8094 for (open, close) in enclosing_bracket_ranges {
8095 let close = close.to_inclusive();
8096 let length = close.end() - open.start;
8097 let inside = selection.start >= open.end && selection.end <= *close.start();
8098 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8099 || close.contains(&selection.head());
8100
8101 // If best is next to a bracket and current isn't, skip
8102 if !in_bracket_range && best_in_bracket_range {
8103 continue;
8104 }
8105
8106 // Prefer smaller lengths unless best is inside and current isn't
8107 if length > best_length && (best_inside || !inside) {
8108 continue;
8109 }
8110
8111 best_length = length;
8112 best_inside = inside;
8113 best_in_bracket_range = in_bracket_range;
8114 best_destination = Some(
8115 if close.contains(&selection.start) && close.contains(&selection.end) {
8116 if inside {
8117 open.end
8118 } else {
8119 open.start
8120 }
8121 } else {
8122 if inside {
8123 *close.start()
8124 } else {
8125 *close.end()
8126 }
8127 },
8128 );
8129 }
8130
8131 if let Some(destination) = best_destination {
8132 selection.collapse_to(destination, SelectionGoal::None);
8133 }
8134 })
8135 });
8136 }
8137
8138 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8139 self.end_selection(cx);
8140 self.selection_history.mode = SelectionHistoryMode::Undoing;
8141 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8142 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8143 self.select_next_state = entry.select_next_state;
8144 self.select_prev_state = entry.select_prev_state;
8145 self.add_selections_state = entry.add_selections_state;
8146 self.request_autoscroll(Autoscroll::newest(), cx);
8147 }
8148 self.selection_history.mode = SelectionHistoryMode::Normal;
8149 }
8150
8151 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8152 self.end_selection(cx);
8153 self.selection_history.mode = SelectionHistoryMode::Redoing;
8154 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8155 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8156 self.select_next_state = entry.select_next_state;
8157 self.select_prev_state = entry.select_prev_state;
8158 self.add_selections_state = entry.add_selections_state;
8159 self.request_autoscroll(Autoscroll::newest(), cx);
8160 }
8161 self.selection_history.mode = SelectionHistoryMode::Normal;
8162 }
8163
8164 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8165 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8166 }
8167
8168 pub fn expand_excerpts_down(
8169 &mut self,
8170 action: &ExpandExcerptsDown,
8171 cx: &mut ViewContext<Self>,
8172 ) {
8173 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8174 }
8175
8176 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8177 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8178 }
8179
8180 pub fn expand_excerpts_for_direction(
8181 &mut self,
8182 lines: u32,
8183 direction: ExpandExcerptDirection,
8184 cx: &mut ViewContext<Self>,
8185 ) {
8186 let selections = self.selections.disjoint_anchors();
8187
8188 let lines = if lines == 0 {
8189 EditorSettings::get_global(cx).expand_excerpt_lines
8190 } else {
8191 lines
8192 };
8193
8194 self.buffer.update(cx, |buffer, cx| {
8195 buffer.expand_excerpts(
8196 selections
8197 .into_iter()
8198 .map(|selection| selection.head().excerpt_id)
8199 .dedup(),
8200 lines,
8201 direction,
8202 cx,
8203 )
8204 })
8205 }
8206
8207 pub fn expand_excerpt(
8208 &mut self,
8209 excerpt: ExcerptId,
8210 direction: ExpandExcerptDirection,
8211 cx: &mut ViewContext<Self>,
8212 ) {
8213 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8214 self.buffer.update(cx, |buffer, cx| {
8215 buffer.expand_excerpts([excerpt], lines, direction, cx)
8216 })
8217 }
8218
8219 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8220 self.go_to_diagnostic_impl(Direction::Next, cx)
8221 }
8222
8223 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8224 self.go_to_diagnostic_impl(Direction::Prev, cx)
8225 }
8226
8227 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8228 let buffer = self.buffer.read(cx).snapshot(cx);
8229 let selection = self.selections.newest::<usize>(cx);
8230
8231 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8232 if direction == Direction::Next {
8233 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8234 let (group_id, jump_to) = popover.activation_info();
8235 if self.activate_diagnostics(group_id, cx) {
8236 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8237 let mut new_selection = s.newest_anchor().clone();
8238 new_selection.collapse_to(jump_to, SelectionGoal::None);
8239 s.select_anchors(vec![new_selection.clone()]);
8240 });
8241 }
8242 return;
8243 }
8244 }
8245
8246 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8247 active_diagnostics
8248 .primary_range
8249 .to_offset(&buffer)
8250 .to_inclusive()
8251 });
8252 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8253 if active_primary_range.contains(&selection.head()) {
8254 *active_primary_range.start()
8255 } else {
8256 selection.head()
8257 }
8258 } else {
8259 selection.head()
8260 };
8261 let snapshot = self.snapshot(cx);
8262 loop {
8263 let diagnostics = if direction == Direction::Prev {
8264 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8265 } else {
8266 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8267 }
8268 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8269 let group = diagnostics
8270 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8271 // be sorted in a stable way
8272 // skip until we are at current active diagnostic, if it exists
8273 .skip_while(|entry| {
8274 (match direction {
8275 Direction::Prev => entry.range.start >= search_start,
8276 Direction::Next => entry.range.start <= search_start,
8277 }) && self
8278 .active_diagnostics
8279 .as_ref()
8280 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8281 })
8282 .find_map(|entry| {
8283 if entry.diagnostic.is_primary
8284 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8285 && !entry.range.is_empty()
8286 // if we match with the active diagnostic, skip it
8287 && Some(entry.diagnostic.group_id)
8288 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8289 {
8290 Some((entry.range, entry.diagnostic.group_id))
8291 } else {
8292 None
8293 }
8294 });
8295
8296 if let Some((primary_range, group_id)) = group {
8297 if self.activate_diagnostics(group_id, cx) {
8298 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8299 s.select(vec![Selection {
8300 id: selection.id,
8301 start: primary_range.start,
8302 end: primary_range.start,
8303 reversed: false,
8304 goal: SelectionGoal::None,
8305 }]);
8306 });
8307 }
8308 break;
8309 } else {
8310 // Cycle around to the start of the buffer, potentially moving back to the start of
8311 // the currently active diagnostic.
8312 active_primary_range.take();
8313 if direction == Direction::Prev {
8314 if search_start == buffer.len() {
8315 break;
8316 } else {
8317 search_start = buffer.len();
8318 }
8319 } else if search_start == 0 {
8320 break;
8321 } else {
8322 search_start = 0;
8323 }
8324 }
8325 }
8326 }
8327
8328 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8329 let snapshot = self
8330 .display_map
8331 .update(cx, |display_map, cx| display_map.snapshot(cx));
8332 let selection = self.selections.newest::<Point>(cx);
8333
8334 if !self.seek_in_direction(
8335 &snapshot,
8336 selection.head(),
8337 false,
8338 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8339 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8340 ),
8341 cx,
8342 ) {
8343 let wrapped_point = Point::zero();
8344 self.seek_in_direction(
8345 &snapshot,
8346 wrapped_point,
8347 true,
8348 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8349 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8350 ),
8351 cx,
8352 );
8353 }
8354 }
8355
8356 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8357 let snapshot = self
8358 .display_map
8359 .update(cx, |display_map, cx| display_map.snapshot(cx));
8360 let selection = self.selections.newest::<Point>(cx);
8361
8362 if !self.seek_in_direction(
8363 &snapshot,
8364 selection.head(),
8365 false,
8366 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8367 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8368 ),
8369 cx,
8370 ) {
8371 let wrapped_point = snapshot.buffer_snapshot.max_point();
8372 self.seek_in_direction(
8373 &snapshot,
8374 wrapped_point,
8375 true,
8376 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8377 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8378 ),
8379 cx,
8380 );
8381 }
8382 }
8383
8384 fn seek_in_direction(
8385 &mut self,
8386 snapshot: &DisplaySnapshot,
8387 initial_point: Point,
8388 is_wrapped: bool,
8389 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8390 cx: &mut ViewContext<Editor>,
8391 ) -> bool {
8392 let display_point = initial_point.to_display_point(snapshot);
8393 let mut hunks = hunks
8394 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8395 .filter(|hunk| {
8396 if is_wrapped {
8397 true
8398 } else {
8399 !hunk.contains_display_row(display_point.row())
8400 }
8401 })
8402 .dedup();
8403
8404 if let Some(hunk) = hunks.next() {
8405 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8406 let row = hunk.start_display_row();
8407 let point = DisplayPoint::new(row, 0);
8408 s.select_display_ranges([point..point]);
8409 });
8410
8411 true
8412 } else {
8413 false
8414 }
8415 }
8416
8417 pub fn go_to_definition(
8418 &mut self,
8419 _: &GoToDefinition,
8420 cx: &mut ViewContext<Self>,
8421 ) -> Task<Result<bool>> {
8422 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8423 }
8424
8425 pub fn go_to_implementation(
8426 &mut self,
8427 _: &GoToImplementation,
8428 cx: &mut ViewContext<Self>,
8429 ) -> Task<Result<bool>> {
8430 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8431 }
8432
8433 pub fn go_to_implementation_split(
8434 &mut self,
8435 _: &GoToImplementationSplit,
8436 cx: &mut ViewContext<Self>,
8437 ) -> Task<Result<bool>> {
8438 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8439 }
8440
8441 pub fn go_to_type_definition(
8442 &mut self,
8443 _: &GoToTypeDefinition,
8444 cx: &mut ViewContext<Self>,
8445 ) -> Task<Result<bool>> {
8446 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8447 }
8448
8449 pub fn go_to_definition_split(
8450 &mut self,
8451 _: &GoToDefinitionSplit,
8452 cx: &mut ViewContext<Self>,
8453 ) -> Task<Result<bool>> {
8454 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8455 }
8456
8457 pub fn go_to_type_definition_split(
8458 &mut self,
8459 _: &GoToTypeDefinitionSplit,
8460 cx: &mut ViewContext<Self>,
8461 ) -> Task<Result<bool>> {
8462 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8463 }
8464
8465 fn go_to_definition_of_kind(
8466 &mut self,
8467 kind: GotoDefinitionKind,
8468 split: bool,
8469 cx: &mut ViewContext<Self>,
8470 ) -> Task<Result<bool>> {
8471 let Some(workspace) = self.workspace() else {
8472 return Task::ready(Ok(false));
8473 };
8474 let buffer = self.buffer.read(cx);
8475 let head = self.selections.newest::<usize>(cx).head();
8476 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8477 text_anchor
8478 } else {
8479 return Task::ready(Ok(false));
8480 };
8481
8482 let project = workspace.read(cx).project().clone();
8483 let definitions = project.update(cx, |project, cx| match kind {
8484 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8485 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8486 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8487 });
8488
8489 cx.spawn(|editor, mut cx| async move {
8490 let definitions = definitions.await?;
8491 let navigated = editor
8492 .update(&mut cx, |editor, cx| {
8493 editor.navigate_to_hover_links(
8494 Some(kind),
8495 definitions
8496 .into_iter()
8497 .filter(|location| {
8498 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8499 })
8500 .map(HoverLink::Text)
8501 .collect::<Vec<_>>(),
8502 split,
8503 cx,
8504 )
8505 })?
8506 .await?;
8507 anyhow::Ok(navigated)
8508 })
8509 }
8510
8511 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8512 let position = self.selections.newest_anchor().head();
8513 let Some((buffer, buffer_position)) =
8514 self.buffer.read(cx).text_anchor_for_position(position, cx)
8515 else {
8516 return;
8517 };
8518
8519 cx.spawn(|editor, mut cx| async move {
8520 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8521 editor.update(&mut cx, |_, cx| {
8522 cx.open_url(&url);
8523 })
8524 } else {
8525 Ok(())
8526 }
8527 })
8528 .detach();
8529 }
8530
8531 pub(crate) fn navigate_to_hover_links(
8532 &mut self,
8533 kind: Option<GotoDefinitionKind>,
8534 mut definitions: Vec<HoverLink>,
8535 split: bool,
8536 cx: &mut ViewContext<Editor>,
8537 ) -> Task<Result<bool>> {
8538 // If there is one definition, just open it directly
8539 if definitions.len() == 1 {
8540 let definition = definitions.pop().unwrap();
8541 let target_task = match definition {
8542 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8543 HoverLink::InlayHint(lsp_location, server_id) => {
8544 self.compute_target_location(lsp_location, server_id, cx)
8545 }
8546 HoverLink::Url(url) => {
8547 cx.open_url(&url);
8548 Task::ready(Ok(None))
8549 }
8550 };
8551 cx.spawn(|editor, mut cx| async move {
8552 let target = target_task.await.context("target resolution task")?;
8553 if let Some(target) = target {
8554 editor.update(&mut cx, |editor, cx| {
8555 let Some(workspace) = editor.workspace() else {
8556 return false;
8557 };
8558 let pane = workspace.read(cx).active_pane().clone();
8559
8560 let range = target.range.to_offset(target.buffer.read(cx));
8561 let range = editor.range_for_match(&range);
8562
8563 /// If select range has more than one line, we
8564 /// just point the cursor to range.start.
8565 fn check_multiline_range(
8566 buffer: &Buffer,
8567 range: Range<usize>,
8568 ) -> Range<usize> {
8569 if buffer.offset_to_point(range.start).row
8570 == buffer.offset_to_point(range.end).row
8571 {
8572 range
8573 } else {
8574 range.start..range.start
8575 }
8576 }
8577
8578 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8579 let buffer = target.buffer.read(cx);
8580 let range = check_multiline_range(buffer, range);
8581 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8582 s.select_ranges([range]);
8583 });
8584 } else {
8585 cx.window_context().defer(move |cx| {
8586 let target_editor: View<Self> =
8587 workspace.update(cx, |workspace, cx| {
8588 let pane = if split {
8589 workspace.adjacent_pane(cx)
8590 } else {
8591 workspace.active_pane().clone()
8592 };
8593
8594 workspace.open_project_item(pane, target.buffer.clone(), cx)
8595 });
8596 target_editor.update(cx, |target_editor, cx| {
8597 // When selecting a definition in a different buffer, disable the nav history
8598 // to avoid creating a history entry at the previous cursor location.
8599 pane.update(cx, |pane, _| pane.disable_history());
8600 let buffer = target.buffer.read(cx);
8601 let range = check_multiline_range(buffer, range);
8602 target_editor.change_selections(
8603 Some(Autoscroll::focused()),
8604 cx,
8605 |s| {
8606 s.select_ranges([range]);
8607 },
8608 );
8609 pane.update(cx, |pane, _| pane.enable_history());
8610 });
8611 });
8612 }
8613 true
8614 })
8615 } else {
8616 Ok(false)
8617 }
8618 })
8619 } else if !definitions.is_empty() {
8620 let replica_id = self.replica_id(cx);
8621 cx.spawn(|editor, mut cx| async move {
8622 let (title, location_tasks, workspace) = editor
8623 .update(&mut cx, |editor, cx| {
8624 let tab_kind = match kind {
8625 Some(GotoDefinitionKind::Implementation) => "Implementations",
8626 _ => "Definitions",
8627 };
8628 let title = definitions
8629 .iter()
8630 .find_map(|definition| match definition {
8631 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8632 let buffer = origin.buffer.read(cx);
8633 format!(
8634 "{} for {}",
8635 tab_kind,
8636 buffer
8637 .text_for_range(origin.range.clone())
8638 .collect::<String>()
8639 )
8640 }),
8641 HoverLink::InlayHint(_, _) => None,
8642 HoverLink::Url(_) => None,
8643 })
8644 .unwrap_or(tab_kind.to_string());
8645 let location_tasks = definitions
8646 .into_iter()
8647 .map(|definition| match definition {
8648 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8649 HoverLink::InlayHint(lsp_location, server_id) => {
8650 editor.compute_target_location(lsp_location, server_id, cx)
8651 }
8652 HoverLink::Url(_) => Task::ready(Ok(None)),
8653 })
8654 .collect::<Vec<_>>();
8655 (title, location_tasks, editor.workspace().clone())
8656 })
8657 .context("location tasks preparation")?;
8658
8659 let locations = futures::future::join_all(location_tasks)
8660 .await
8661 .into_iter()
8662 .filter_map(|location| location.transpose())
8663 .collect::<Result<_>>()
8664 .context("location tasks")?;
8665
8666 let Some(workspace) = workspace else {
8667 return Ok(false);
8668 };
8669 let opened = workspace
8670 .update(&mut cx, |workspace, cx| {
8671 Self::open_locations_in_multibuffer(
8672 workspace, locations, replica_id, title, split, cx,
8673 )
8674 })
8675 .ok();
8676
8677 anyhow::Ok(opened.is_some())
8678 })
8679 } else {
8680 Task::ready(Ok(false))
8681 }
8682 }
8683
8684 fn compute_target_location(
8685 &self,
8686 lsp_location: lsp::Location,
8687 server_id: LanguageServerId,
8688 cx: &mut ViewContext<Editor>,
8689 ) -> Task<anyhow::Result<Option<Location>>> {
8690 let Some(project) = self.project.clone() else {
8691 return Task::Ready(Some(Ok(None)));
8692 };
8693
8694 cx.spawn(move |editor, mut cx| async move {
8695 let location_task = editor.update(&mut cx, |editor, cx| {
8696 project.update(cx, |project, cx| {
8697 let language_server_name =
8698 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8699 project
8700 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8701 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8702 });
8703 language_server_name.map(|language_server_name| {
8704 project.open_local_buffer_via_lsp(
8705 lsp_location.uri.clone(),
8706 server_id,
8707 language_server_name,
8708 cx,
8709 )
8710 })
8711 })
8712 })?;
8713 let location = match location_task {
8714 Some(task) => Some({
8715 let target_buffer_handle = task.await.context("open local buffer")?;
8716 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8717 let target_start = target_buffer
8718 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8719 let target_end = target_buffer
8720 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8721 target_buffer.anchor_after(target_start)
8722 ..target_buffer.anchor_before(target_end)
8723 })?;
8724 Location {
8725 buffer: target_buffer_handle,
8726 range,
8727 }
8728 }),
8729 None => None,
8730 };
8731 Ok(location)
8732 })
8733 }
8734
8735 pub fn find_all_references(
8736 &mut self,
8737 _: &FindAllReferences,
8738 cx: &mut ViewContext<Self>,
8739 ) -> Option<Task<Result<()>>> {
8740 let multi_buffer = self.buffer.read(cx);
8741 let selection = self.selections.newest::<usize>(cx);
8742 let head = selection.head();
8743
8744 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8745 let head_anchor = multi_buffer_snapshot.anchor_at(
8746 head,
8747 if head < selection.tail() {
8748 Bias::Right
8749 } else {
8750 Bias::Left
8751 },
8752 );
8753
8754 match self
8755 .find_all_references_task_sources
8756 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8757 {
8758 Ok(_) => {
8759 log::info!(
8760 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8761 );
8762 return None;
8763 }
8764 Err(i) => {
8765 self.find_all_references_task_sources.insert(i, head_anchor);
8766 }
8767 }
8768
8769 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8770 let replica_id = self.replica_id(cx);
8771 let workspace = self.workspace()?;
8772 let project = workspace.read(cx).project().clone();
8773 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8774 Some(cx.spawn(|editor, mut cx| async move {
8775 let _cleanup = defer({
8776 let mut cx = cx.clone();
8777 move || {
8778 let _ = editor.update(&mut cx, |editor, _| {
8779 if let Ok(i) =
8780 editor
8781 .find_all_references_task_sources
8782 .binary_search_by(|anchor| {
8783 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8784 })
8785 {
8786 editor.find_all_references_task_sources.remove(i);
8787 }
8788 });
8789 }
8790 });
8791
8792 let locations = references.await?;
8793 if locations.is_empty() {
8794 return anyhow::Ok(());
8795 }
8796
8797 workspace.update(&mut cx, |workspace, cx| {
8798 let title = locations
8799 .first()
8800 .as_ref()
8801 .map(|location| {
8802 let buffer = location.buffer.read(cx);
8803 format!(
8804 "References to `{}`",
8805 buffer
8806 .text_for_range(location.range.clone())
8807 .collect::<String>()
8808 )
8809 })
8810 .unwrap();
8811 Self::open_locations_in_multibuffer(
8812 workspace, locations, replica_id, title, false, cx,
8813 );
8814 })
8815 }))
8816 }
8817
8818 /// Opens a multibuffer with the given project locations in it
8819 pub fn open_locations_in_multibuffer(
8820 workspace: &mut Workspace,
8821 mut locations: Vec<Location>,
8822 replica_id: ReplicaId,
8823 title: String,
8824 split: bool,
8825 cx: &mut ViewContext<Workspace>,
8826 ) {
8827 // If there are multiple definitions, open them in a multibuffer
8828 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8829 let mut locations = locations.into_iter().peekable();
8830 let mut ranges_to_highlight = Vec::new();
8831 let capability = workspace.project().read(cx).capability();
8832
8833 let excerpt_buffer = cx.new_model(|cx| {
8834 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8835 while let Some(location) = locations.next() {
8836 let buffer = location.buffer.read(cx);
8837 let mut ranges_for_buffer = Vec::new();
8838 let range = location.range.to_offset(buffer);
8839 ranges_for_buffer.push(range.clone());
8840
8841 while let Some(next_location) = locations.peek() {
8842 if next_location.buffer == location.buffer {
8843 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8844 locations.next();
8845 } else {
8846 break;
8847 }
8848 }
8849
8850 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8851 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8852 location.buffer.clone(),
8853 ranges_for_buffer,
8854 DEFAULT_MULTIBUFFER_CONTEXT,
8855 cx,
8856 ))
8857 }
8858
8859 multibuffer.with_title(title)
8860 });
8861
8862 let editor = cx.new_view(|cx| {
8863 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
8864 });
8865 editor.update(cx, |editor, cx| {
8866 editor.highlight_background::<Self>(
8867 &ranges_to_highlight,
8868 |theme| theme.editor_highlighted_line_background,
8869 cx,
8870 );
8871 });
8872
8873 let item = Box::new(editor);
8874 let item_id = item.item_id();
8875
8876 if split {
8877 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8878 } else {
8879 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8880 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8881 pane.close_current_preview_item(cx)
8882 } else {
8883 None
8884 }
8885 });
8886 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8887 }
8888 workspace.active_pane().update(cx, |pane, cx| {
8889 pane.set_preview_item_id(Some(item_id), cx);
8890 });
8891 }
8892
8893 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8894 use language::ToOffset as _;
8895
8896 let project = self.project.clone()?;
8897 let selection = self.selections.newest_anchor().clone();
8898 let (cursor_buffer, cursor_buffer_position) = self
8899 .buffer
8900 .read(cx)
8901 .text_anchor_for_position(selection.head(), cx)?;
8902 let (tail_buffer, cursor_buffer_position_end) = self
8903 .buffer
8904 .read(cx)
8905 .text_anchor_for_position(selection.tail(), cx)?;
8906 if tail_buffer != cursor_buffer {
8907 return None;
8908 }
8909
8910 let snapshot = cursor_buffer.read(cx).snapshot();
8911 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8912 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8913 let prepare_rename = project.update(cx, |project, cx| {
8914 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8915 });
8916 drop(snapshot);
8917
8918 Some(cx.spawn(|this, mut cx| async move {
8919 let rename_range = if let Some(range) = prepare_rename.await? {
8920 Some(range)
8921 } else {
8922 this.update(&mut cx, |this, cx| {
8923 let buffer = this.buffer.read(cx).snapshot(cx);
8924 let mut buffer_highlights = this
8925 .document_highlights_for_position(selection.head(), &buffer)
8926 .filter(|highlight| {
8927 highlight.start.excerpt_id == selection.head().excerpt_id
8928 && highlight.end.excerpt_id == selection.head().excerpt_id
8929 });
8930 buffer_highlights
8931 .next()
8932 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8933 })?
8934 };
8935 if let Some(rename_range) = rename_range {
8936 this.update(&mut cx, |this, cx| {
8937 let snapshot = cursor_buffer.read(cx).snapshot();
8938 let rename_buffer_range = rename_range.to_offset(&snapshot);
8939 let cursor_offset_in_rename_range =
8940 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8941 let cursor_offset_in_rename_range_end =
8942 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8943
8944 this.take_rename(false, cx);
8945 let buffer = this.buffer.read(cx).read(cx);
8946 let cursor_offset = selection.head().to_offset(&buffer);
8947 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8948 let rename_end = rename_start + rename_buffer_range.len();
8949 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8950 let mut old_highlight_id = None;
8951 let old_name: Arc<str> = buffer
8952 .chunks(rename_start..rename_end, true)
8953 .map(|chunk| {
8954 if old_highlight_id.is_none() {
8955 old_highlight_id = chunk.syntax_highlight_id;
8956 }
8957 chunk.text
8958 })
8959 .collect::<String>()
8960 .into();
8961
8962 drop(buffer);
8963
8964 // Position the selection in the rename editor so that it matches the current selection.
8965 this.show_local_selections = false;
8966 let rename_editor = cx.new_view(|cx| {
8967 let mut editor = Editor::single_line(cx);
8968 editor.buffer.update(cx, |buffer, cx| {
8969 buffer.edit([(0..0, old_name.clone())], None, cx)
8970 });
8971 let rename_selection_range = match cursor_offset_in_rename_range
8972 .cmp(&cursor_offset_in_rename_range_end)
8973 {
8974 Ordering::Equal => {
8975 editor.select_all(&SelectAll, cx);
8976 return editor;
8977 }
8978 Ordering::Less => {
8979 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8980 }
8981 Ordering::Greater => {
8982 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8983 }
8984 };
8985 if rename_selection_range.end > old_name.len() {
8986 editor.select_all(&SelectAll, cx);
8987 } else {
8988 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8989 s.select_ranges([rename_selection_range]);
8990 });
8991 }
8992 editor
8993 });
8994
8995 let write_highlights =
8996 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8997 let read_highlights =
8998 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8999 let ranges = write_highlights
9000 .iter()
9001 .flat_map(|(_, ranges)| ranges.iter())
9002 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9003 .cloned()
9004 .collect();
9005
9006 this.highlight_text::<Rename>(
9007 ranges,
9008 HighlightStyle {
9009 fade_out: Some(0.6),
9010 ..Default::default()
9011 },
9012 cx,
9013 );
9014 let rename_focus_handle = rename_editor.focus_handle(cx);
9015 cx.focus(&rename_focus_handle);
9016 let block_id = this.insert_blocks(
9017 [BlockProperties {
9018 style: BlockStyle::Flex,
9019 position: range.start,
9020 height: 1,
9021 render: Box::new({
9022 let rename_editor = rename_editor.clone();
9023 move |cx: &mut BlockContext| {
9024 let mut text_style = cx.editor_style.text.clone();
9025 if let Some(highlight_style) = old_highlight_id
9026 .and_then(|h| h.style(&cx.editor_style.syntax))
9027 {
9028 text_style = text_style.highlight(highlight_style);
9029 }
9030 div()
9031 .pl(cx.anchor_x)
9032 .child(EditorElement::new(
9033 &rename_editor,
9034 EditorStyle {
9035 background: cx.theme().system().transparent,
9036 local_player: cx.editor_style.local_player,
9037 text: text_style,
9038 scrollbar_width: cx.editor_style.scrollbar_width,
9039 syntax: cx.editor_style.syntax.clone(),
9040 status: cx.editor_style.status.clone(),
9041 inlay_hints_style: HighlightStyle {
9042 color: Some(cx.theme().status().hint),
9043 font_weight: Some(FontWeight::BOLD),
9044 ..HighlightStyle::default()
9045 },
9046 suggestions_style: HighlightStyle {
9047 color: Some(cx.theme().status().predictive),
9048 ..HighlightStyle::default()
9049 },
9050 },
9051 ))
9052 .into_any_element()
9053 }
9054 }),
9055 disposition: BlockDisposition::Below,
9056 }],
9057 Some(Autoscroll::fit()),
9058 cx,
9059 )[0];
9060 this.pending_rename = Some(RenameState {
9061 range,
9062 old_name,
9063 editor: rename_editor,
9064 block_id,
9065 });
9066 })?;
9067 }
9068
9069 Ok(())
9070 }))
9071 }
9072
9073 pub fn confirm_rename(
9074 &mut self,
9075 _: &ConfirmRename,
9076 cx: &mut ViewContext<Self>,
9077 ) -> Option<Task<Result<()>>> {
9078 let rename = self.take_rename(false, cx)?;
9079 let workspace = self.workspace()?;
9080 let (start_buffer, start) = self
9081 .buffer
9082 .read(cx)
9083 .text_anchor_for_position(rename.range.start, cx)?;
9084 let (end_buffer, end) = self
9085 .buffer
9086 .read(cx)
9087 .text_anchor_for_position(rename.range.end, cx)?;
9088 if start_buffer != end_buffer {
9089 return None;
9090 }
9091
9092 let buffer = start_buffer;
9093 let range = start..end;
9094 let old_name = rename.old_name;
9095 let new_name = rename.editor.read(cx).text(cx);
9096
9097 let rename = workspace
9098 .read(cx)
9099 .project()
9100 .clone()
9101 .update(cx, |project, cx| {
9102 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9103 });
9104 let workspace = workspace.downgrade();
9105
9106 Some(cx.spawn(|editor, mut cx| async move {
9107 let project_transaction = rename.await?;
9108 Self::open_project_transaction(
9109 &editor,
9110 workspace,
9111 project_transaction,
9112 format!("Rename: {} → {}", old_name, new_name),
9113 cx.clone(),
9114 )
9115 .await?;
9116
9117 editor.update(&mut cx, |editor, cx| {
9118 editor.refresh_document_highlights(cx);
9119 })?;
9120 Ok(())
9121 }))
9122 }
9123
9124 fn take_rename(
9125 &mut self,
9126 moving_cursor: bool,
9127 cx: &mut ViewContext<Self>,
9128 ) -> Option<RenameState> {
9129 let rename = self.pending_rename.take()?;
9130 if rename.editor.focus_handle(cx).is_focused(cx) {
9131 cx.focus(&self.focus_handle);
9132 }
9133
9134 self.remove_blocks(
9135 [rename.block_id].into_iter().collect(),
9136 Some(Autoscroll::fit()),
9137 cx,
9138 );
9139 self.clear_highlights::<Rename>(cx);
9140 self.show_local_selections = true;
9141
9142 if moving_cursor {
9143 let rename_editor = rename.editor.read(cx);
9144 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9145
9146 // Update the selection to match the position of the selection inside
9147 // the rename editor.
9148 let snapshot = self.buffer.read(cx).read(cx);
9149 let rename_range = rename.range.to_offset(&snapshot);
9150 let cursor_in_editor = snapshot
9151 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9152 .min(rename_range.end);
9153 drop(snapshot);
9154
9155 self.change_selections(None, cx, |s| {
9156 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9157 });
9158 } else {
9159 self.refresh_document_highlights(cx);
9160 }
9161
9162 Some(rename)
9163 }
9164
9165 pub fn pending_rename(&self) -> Option<&RenameState> {
9166 self.pending_rename.as_ref()
9167 }
9168
9169 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9170 let project = match &self.project {
9171 Some(project) => project.clone(),
9172 None => return None,
9173 };
9174
9175 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9176 }
9177
9178 fn perform_format(
9179 &mut self,
9180 project: Model<Project>,
9181 trigger: FormatTrigger,
9182 cx: &mut ViewContext<Self>,
9183 ) -> Task<Result<()>> {
9184 let buffer = self.buffer().clone();
9185 let mut buffers = buffer.read(cx).all_buffers();
9186 if trigger == FormatTrigger::Save {
9187 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9188 }
9189
9190 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9191 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9192
9193 cx.spawn(|_, mut cx| async move {
9194 let transaction = futures::select_biased! {
9195 () = timeout => {
9196 log::warn!("timed out waiting for formatting");
9197 None
9198 }
9199 transaction = format.log_err().fuse() => transaction,
9200 };
9201
9202 buffer
9203 .update(&mut cx, |buffer, cx| {
9204 if let Some(transaction) = transaction {
9205 if !buffer.is_singleton() {
9206 buffer.push_transaction(&transaction.0, cx);
9207 }
9208 }
9209
9210 cx.notify();
9211 })
9212 .ok();
9213
9214 Ok(())
9215 })
9216 }
9217
9218 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9219 if let Some(project) = self.project.clone() {
9220 self.buffer.update(cx, |multi_buffer, cx| {
9221 project.update(cx, |project, cx| {
9222 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9223 });
9224 })
9225 }
9226 }
9227
9228 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9229 cx.show_character_palette();
9230 }
9231
9232 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9233 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9234 let buffer = self.buffer.read(cx).snapshot(cx);
9235 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9236 let is_valid = buffer
9237 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9238 .any(|entry| {
9239 entry.diagnostic.is_primary
9240 && !entry.range.is_empty()
9241 && entry.range.start == primary_range_start
9242 && entry.diagnostic.message == active_diagnostics.primary_message
9243 });
9244
9245 if is_valid != active_diagnostics.is_valid {
9246 active_diagnostics.is_valid = is_valid;
9247 let mut new_styles = HashMap::default();
9248 for (block_id, diagnostic) in &active_diagnostics.blocks {
9249 new_styles.insert(
9250 *block_id,
9251 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9252 );
9253 }
9254 self.display_map
9255 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9256 }
9257 }
9258 }
9259
9260 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9261 self.dismiss_diagnostics(cx);
9262 let snapshot = self.snapshot(cx);
9263 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9264 let buffer = self.buffer.read(cx).snapshot(cx);
9265
9266 let mut primary_range = None;
9267 let mut primary_message = None;
9268 let mut group_end = Point::zero();
9269 let diagnostic_group = buffer
9270 .diagnostic_group::<MultiBufferPoint>(group_id)
9271 .filter_map(|entry| {
9272 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9273 && (entry.range.start.row == entry.range.end.row
9274 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9275 {
9276 return None;
9277 }
9278 if entry.range.end > group_end {
9279 group_end = entry.range.end;
9280 }
9281 if entry.diagnostic.is_primary {
9282 primary_range = Some(entry.range.clone());
9283 primary_message = Some(entry.diagnostic.message.clone());
9284 }
9285 Some(entry)
9286 })
9287 .collect::<Vec<_>>();
9288 let primary_range = primary_range?;
9289 let primary_message = primary_message?;
9290 let primary_range =
9291 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9292
9293 let blocks = display_map
9294 .insert_blocks(
9295 diagnostic_group.iter().map(|entry| {
9296 let diagnostic = entry.diagnostic.clone();
9297 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9298 BlockProperties {
9299 style: BlockStyle::Fixed,
9300 position: buffer.anchor_after(entry.range.start),
9301 height: message_height,
9302 render: diagnostic_block_renderer(diagnostic, true),
9303 disposition: BlockDisposition::Below,
9304 }
9305 }),
9306 cx,
9307 )
9308 .into_iter()
9309 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9310 .collect();
9311
9312 Some(ActiveDiagnosticGroup {
9313 primary_range,
9314 primary_message,
9315 group_id,
9316 blocks,
9317 is_valid: true,
9318 })
9319 });
9320 self.active_diagnostics.is_some()
9321 }
9322
9323 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9324 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9325 self.display_map.update(cx, |display_map, cx| {
9326 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9327 });
9328 cx.notify();
9329 }
9330 }
9331
9332 pub fn set_selections_from_remote(
9333 &mut self,
9334 selections: Vec<Selection<Anchor>>,
9335 pending_selection: Option<Selection<Anchor>>,
9336 cx: &mut ViewContext<Self>,
9337 ) {
9338 let old_cursor_position = self.selections.newest_anchor().head();
9339 self.selections.change_with(cx, |s| {
9340 s.select_anchors(selections);
9341 if let Some(pending_selection) = pending_selection {
9342 s.set_pending(pending_selection, SelectMode::Character);
9343 } else {
9344 s.clear_pending();
9345 }
9346 });
9347 self.selections_did_change(false, &old_cursor_position, true, cx);
9348 }
9349
9350 fn push_to_selection_history(&mut self) {
9351 self.selection_history.push(SelectionHistoryEntry {
9352 selections: self.selections.disjoint_anchors(),
9353 select_next_state: self.select_next_state.clone(),
9354 select_prev_state: self.select_prev_state.clone(),
9355 add_selections_state: self.add_selections_state.clone(),
9356 });
9357 }
9358
9359 pub fn transact(
9360 &mut self,
9361 cx: &mut ViewContext<Self>,
9362 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9363 ) -> Option<TransactionId> {
9364 self.start_transaction_at(Instant::now(), cx);
9365 update(self, cx);
9366 self.end_transaction_at(Instant::now(), cx)
9367 }
9368
9369 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9370 self.end_selection(cx);
9371 if let Some(tx_id) = self
9372 .buffer
9373 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9374 {
9375 self.selection_history
9376 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9377 cx.emit(EditorEvent::TransactionBegun {
9378 transaction_id: tx_id,
9379 })
9380 }
9381 }
9382
9383 fn end_transaction_at(
9384 &mut self,
9385 now: Instant,
9386 cx: &mut ViewContext<Self>,
9387 ) -> Option<TransactionId> {
9388 if let Some(tx_id) = self
9389 .buffer
9390 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9391 {
9392 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9393 *end_selections = Some(self.selections.disjoint_anchors());
9394 } else {
9395 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9396 }
9397
9398 cx.emit(EditorEvent::Edited);
9399 Some(tx_id)
9400 } else {
9401 None
9402 }
9403 }
9404
9405 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9406 let mut fold_ranges = Vec::new();
9407
9408 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9409
9410 let selections = self.selections.all_adjusted(cx);
9411 for selection in selections {
9412 let range = selection.range().sorted();
9413 let buffer_start_row = range.start.row;
9414
9415 for row in (0..=range.end.row).rev() {
9416 if let Some((foldable_range, fold_text)) =
9417 display_map.foldable_range(MultiBufferRow(row))
9418 {
9419 if foldable_range.end.row >= buffer_start_row {
9420 fold_ranges.push((foldable_range, fold_text));
9421 if row <= range.start.row {
9422 break;
9423 }
9424 }
9425 }
9426 }
9427 }
9428
9429 self.fold_ranges(fold_ranges, true, cx);
9430 }
9431
9432 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9433 let buffer_row = fold_at.buffer_row;
9434 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9435
9436 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9437 let autoscroll = self
9438 .selections
9439 .all::<Point>(cx)
9440 .iter()
9441 .any(|selection| fold_range.overlaps(&selection.range()));
9442
9443 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9444 }
9445 }
9446
9447 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9448 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9449 let buffer = &display_map.buffer_snapshot;
9450 let selections = self.selections.all::<Point>(cx);
9451 let ranges = selections
9452 .iter()
9453 .map(|s| {
9454 let range = s.display_range(&display_map).sorted();
9455 let mut start = range.start.to_point(&display_map);
9456 let mut end = range.end.to_point(&display_map);
9457 start.column = 0;
9458 end.column = buffer.line_len(MultiBufferRow(end.row));
9459 start..end
9460 })
9461 .collect::<Vec<_>>();
9462
9463 self.unfold_ranges(ranges, true, true, cx);
9464 }
9465
9466 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9467 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9468
9469 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9470 ..Point::new(
9471 unfold_at.buffer_row.0,
9472 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9473 );
9474
9475 let autoscroll = self
9476 .selections
9477 .all::<Point>(cx)
9478 .iter()
9479 .any(|selection| selection.range().overlaps(&intersection_range));
9480
9481 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9482 }
9483
9484 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9485 let selections = self.selections.all::<Point>(cx);
9486 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9487 let line_mode = self.selections.line_mode;
9488 let ranges = selections.into_iter().map(|s| {
9489 if line_mode {
9490 let start = Point::new(s.start.row, 0);
9491 let end = Point::new(
9492 s.end.row,
9493 display_map
9494 .buffer_snapshot
9495 .line_len(MultiBufferRow(s.end.row)),
9496 );
9497 (start..end, display_map.fold_placeholder.clone())
9498 } else {
9499 (s.start..s.end, display_map.fold_placeholder.clone())
9500 }
9501 });
9502 self.fold_ranges(ranges, true, cx);
9503 }
9504
9505 pub fn fold_ranges<T: ToOffset + Clone>(
9506 &mut self,
9507 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9508 auto_scroll: bool,
9509 cx: &mut ViewContext<Self>,
9510 ) {
9511 let mut fold_ranges = Vec::new();
9512 let mut buffers_affected = HashMap::default();
9513 let multi_buffer = self.buffer().read(cx);
9514 for (fold_range, fold_text) in ranges {
9515 if let Some((_, buffer, _)) =
9516 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9517 {
9518 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9519 };
9520 fold_ranges.push((fold_range, fold_text));
9521 }
9522
9523 let mut ranges = fold_ranges.into_iter().peekable();
9524 if ranges.peek().is_some() {
9525 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9526
9527 if auto_scroll {
9528 self.request_autoscroll(Autoscroll::fit(), cx);
9529 }
9530
9531 for buffer in buffers_affected.into_values() {
9532 self.sync_expanded_diff_hunks(buffer, cx);
9533 }
9534
9535 cx.notify();
9536
9537 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9538 // Clear diagnostics block when folding a range that contains it.
9539 let snapshot = self.snapshot(cx);
9540 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9541 drop(snapshot);
9542 self.active_diagnostics = Some(active_diagnostics);
9543 self.dismiss_diagnostics(cx);
9544 } else {
9545 self.active_diagnostics = Some(active_diagnostics);
9546 }
9547 }
9548
9549 self.scrollbar_marker_state.dirty = true;
9550 }
9551 }
9552
9553 pub fn unfold_ranges<T: ToOffset + Clone>(
9554 &mut self,
9555 ranges: impl IntoIterator<Item = Range<T>>,
9556 inclusive: bool,
9557 auto_scroll: bool,
9558 cx: &mut ViewContext<Self>,
9559 ) {
9560 let mut unfold_ranges = Vec::new();
9561 let mut buffers_affected = HashMap::default();
9562 let multi_buffer = self.buffer().read(cx);
9563 for range in ranges {
9564 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9565 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9566 };
9567 unfold_ranges.push(range);
9568 }
9569
9570 let mut ranges = unfold_ranges.into_iter().peekable();
9571 if ranges.peek().is_some() {
9572 self.display_map
9573 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9574 if auto_scroll {
9575 self.request_autoscroll(Autoscroll::fit(), cx);
9576 }
9577
9578 for buffer in buffers_affected.into_values() {
9579 self.sync_expanded_diff_hunks(buffer, cx);
9580 }
9581
9582 cx.notify();
9583 self.scrollbar_marker_state.dirty = true;
9584 self.active_indent_guides_state.dirty = true;
9585 }
9586 }
9587
9588 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9589 if hovered != self.gutter_hovered {
9590 self.gutter_hovered = hovered;
9591 cx.notify();
9592 }
9593 }
9594
9595 pub fn insert_blocks(
9596 &mut self,
9597 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9598 autoscroll: Option<Autoscroll>,
9599 cx: &mut ViewContext<Self>,
9600 ) -> Vec<BlockId> {
9601 let blocks = self
9602 .display_map
9603 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9604 if let Some(autoscroll) = autoscroll {
9605 self.request_autoscroll(autoscroll, cx);
9606 }
9607 blocks
9608 }
9609
9610 pub fn replace_blocks(
9611 &mut self,
9612 blocks: HashMap<BlockId, RenderBlock>,
9613 autoscroll: Option<Autoscroll>,
9614 cx: &mut ViewContext<Self>,
9615 ) {
9616 self.display_map
9617 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9618 if let Some(autoscroll) = autoscroll {
9619 self.request_autoscroll(autoscroll, cx);
9620 }
9621 }
9622
9623 pub fn remove_blocks(
9624 &mut self,
9625 block_ids: HashSet<BlockId>,
9626 autoscroll: Option<Autoscroll>,
9627 cx: &mut ViewContext<Self>,
9628 ) {
9629 self.display_map.update(cx, |display_map, cx| {
9630 display_map.remove_blocks(block_ids, cx)
9631 });
9632 if let Some(autoscroll) = autoscroll {
9633 self.request_autoscroll(autoscroll, cx);
9634 }
9635 }
9636
9637 pub fn insert_flaps(
9638 &mut self,
9639 flaps: impl IntoIterator<Item = Flap>,
9640 cx: &mut ViewContext<Self>,
9641 ) -> Vec<FlapId> {
9642 self.display_map
9643 .update(cx, |map, cx| map.insert_flaps(flaps, cx))
9644 }
9645
9646 pub fn remove_flaps(
9647 &mut self,
9648 ids: impl IntoIterator<Item = FlapId>,
9649 cx: &mut ViewContext<Self>,
9650 ) {
9651 self.display_map
9652 .update(cx, |map, cx| map.remove_flaps(ids, cx));
9653 }
9654
9655 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9656 self.display_map
9657 .update(cx, |map, cx| map.snapshot(cx))
9658 .longest_row()
9659 }
9660
9661 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9662 self.display_map
9663 .update(cx, |map, cx| map.snapshot(cx))
9664 .max_point()
9665 }
9666
9667 pub fn text(&self, cx: &AppContext) -> String {
9668 self.buffer.read(cx).read(cx).text()
9669 }
9670
9671 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9672 let text = self.text(cx);
9673 let text = text.trim();
9674
9675 if text.is_empty() {
9676 return None;
9677 }
9678
9679 Some(text.to_string())
9680 }
9681
9682 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9683 self.transact(cx, |this, cx| {
9684 this.buffer
9685 .read(cx)
9686 .as_singleton()
9687 .expect("you can only call set_text on editors for singleton buffers")
9688 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9689 });
9690 }
9691
9692 pub fn display_text(&self, cx: &mut AppContext) -> String {
9693 self.display_map
9694 .update(cx, |map, cx| map.snapshot(cx))
9695 .text()
9696 }
9697
9698 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9699 let mut wrap_guides = smallvec::smallvec![];
9700
9701 if self.show_wrap_guides == Some(false) {
9702 return wrap_guides;
9703 }
9704
9705 let settings = self.buffer.read(cx).settings_at(0, cx);
9706 if settings.show_wrap_guides {
9707 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9708 wrap_guides.push((soft_wrap as usize, true));
9709 }
9710 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9711 }
9712
9713 wrap_guides
9714 }
9715
9716 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9717 let settings = self.buffer.read(cx).settings_at(0, cx);
9718 let mode = self
9719 .soft_wrap_mode_override
9720 .unwrap_or_else(|| settings.soft_wrap);
9721 match mode {
9722 language_settings::SoftWrap::None => SoftWrap::None,
9723 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9724 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9725 language_settings::SoftWrap::PreferredLineLength => {
9726 SoftWrap::Column(settings.preferred_line_length)
9727 }
9728 }
9729 }
9730
9731 pub fn set_soft_wrap_mode(
9732 &mut self,
9733 mode: language_settings::SoftWrap,
9734 cx: &mut ViewContext<Self>,
9735 ) {
9736 self.soft_wrap_mode_override = Some(mode);
9737 cx.notify();
9738 }
9739
9740 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9741 let rem_size = cx.rem_size();
9742 self.display_map.update(cx, |map, cx| {
9743 map.set_font(
9744 style.text.font(),
9745 style.text.font_size.to_pixels(rem_size),
9746 cx,
9747 )
9748 });
9749 self.style = Some(style);
9750 }
9751
9752 pub fn style(&self) -> Option<&EditorStyle> {
9753 self.style.as_ref()
9754 }
9755
9756 // Called by the element. This method is not designed to be called outside of the editor
9757 // element's layout code because it does not notify when rewrapping is computed synchronously.
9758 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9759 self.display_map
9760 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9761 }
9762
9763 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9764 if self.soft_wrap_mode_override.is_some() {
9765 self.soft_wrap_mode_override.take();
9766 } else {
9767 let soft_wrap = match self.soft_wrap_mode(cx) {
9768 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9769 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9770 language_settings::SoftWrap::PreferLine
9771 }
9772 };
9773 self.soft_wrap_mode_override = Some(soft_wrap);
9774 }
9775 cx.notify();
9776 }
9777
9778 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
9779 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
9780 self.buffer
9781 .read(cx)
9782 .settings_at(0, cx)
9783 .indent_guides
9784 .enabled
9785 });
9786 self.show_indent_guides = Some(!currently_enabled);
9787 cx.notify();
9788 }
9789
9790 fn should_show_indent_guides(&self) -> Option<bool> {
9791 self.show_indent_guides
9792 }
9793
9794 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9795 let mut editor_settings = EditorSettings::get_global(cx).clone();
9796 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9797 EditorSettings::override_global(editor_settings, cx);
9798 }
9799
9800 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9801 self.show_gutter = show_gutter;
9802 cx.notify();
9803 }
9804
9805 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
9806 self.show_line_numbers = Some(show_line_numbers);
9807 cx.notify();
9808 }
9809
9810 pub fn set_show_git_diff_gutter(
9811 &mut self,
9812 show_git_diff_gutter: bool,
9813 cx: &mut ViewContext<Self>,
9814 ) {
9815 self.show_git_diff_gutter = Some(show_git_diff_gutter);
9816 cx.notify();
9817 }
9818
9819 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
9820 self.show_code_actions = Some(show_code_actions);
9821 cx.notify();
9822 }
9823
9824 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
9825 self.show_wrap_guides = Some(show_wrap_guides);
9826 cx.notify();
9827 }
9828
9829 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
9830 self.show_indent_guides = Some(show_indent_guides);
9831 cx.notify();
9832 }
9833
9834 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9835 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9836 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9837 cx.reveal_path(&file.abs_path(cx));
9838 }
9839 }
9840 }
9841
9842 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9843 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9844 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9845 if let Some(path) = file.abs_path(cx).to_str() {
9846 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9847 }
9848 }
9849 }
9850 }
9851
9852 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9853 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9854 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9855 if let Some(path) = file.path().to_str() {
9856 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9857 }
9858 }
9859 }
9860 }
9861
9862 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9863 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9864
9865 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9866 self.start_git_blame(true, cx);
9867 }
9868
9869 cx.notify();
9870 }
9871
9872 pub fn toggle_git_blame_inline(
9873 &mut self,
9874 _: &ToggleGitBlameInline,
9875 cx: &mut ViewContext<Self>,
9876 ) {
9877 self.toggle_git_blame_inline_internal(true, cx);
9878 cx.notify();
9879 }
9880
9881 pub fn git_blame_inline_enabled(&self) -> bool {
9882 self.git_blame_inline_enabled
9883 }
9884
9885 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9886 if let Some(project) = self.project.as_ref() {
9887 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9888 return;
9889 };
9890
9891 if buffer.read(cx).file().is_none() {
9892 return;
9893 }
9894
9895 let focused = self.focus_handle(cx).contains_focused(cx);
9896
9897 let project = project.clone();
9898 let blame =
9899 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9900 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9901 self.blame = Some(blame);
9902 }
9903 }
9904
9905 fn toggle_git_blame_inline_internal(
9906 &mut self,
9907 user_triggered: bool,
9908 cx: &mut ViewContext<Self>,
9909 ) {
9910 if self.git_blame_inline_enabled {
9911 self.git_blame_inline_enabled = false;
9912 self.show_git_blame_inline = false;
9913 self.show_git_blame_inline_delay_task.take();
9914 } else {
9915 self.git_blame_inline_enabled = true;
9916 self.start_git_blame_inline(user_triggered, cx);
9917 }
9918
9919 cx.notify();
9920 }
9921
9922 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9923 self.start_git_blame(user_triggered, cx);
9924
9925 if ProjectSettings::get_global(cx)
9926 .git
9927 .inline_blame_delay()
9928 .is_some()
9929 {
9930 self.start_inline_blame_timer(cx);
9931 } else {
9932 self.show_git_blame_inline = true
9933 }
9934 }
9935
9936 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9937 self.blame.as_ref()
9938 }
9939
9940 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9941 self.show_git_blame_gutter && self.has_blame_entries(cx)
9942 }
9943
9944 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9945 self.show_git_blame_inline
9946 && self.focus_handle.is_focused(cx)
9947 && !self.newest_selection_head_on_empty_line(cx)
9948 && self.has_blame_entries(cx)
9949 }
9950
9951 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9952 self.blame()
9953 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9954 }
9955
9956 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9957 let cursor_anchor = self.selections.newest_anchor().head();
9958
9959 let snapshot = self.buffer.read(cx).snapshot(cx);
9960 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9961
9962 snapshot.line_len(buffer_row) == 0
9963 }
9964
9965 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9966 let (path, repo) = maybe!({
9967 let project_handle = self.project.as_ref()?.clone();
9968 let project = project_handle.read(cx);
9969 let buffer = self.buffer().read(cx).as_singleton()?;
9970 let path = buffer
9971 .read(cx)
9972 .file()?
9973 .as_local()?
9974 .path()
9975 .to_str()?
9976 .to_string();
9977 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9978 Some((path, repo))
9979 })
9980 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9981
9982 const REMOTE_NAME: &str = "origin";
9983 let origin_url = repo
9984 .lock()
9985 .remote_url(REMOTE_NAME)
9986 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9987 let sha = repo
9988 .lock()
9989 .head_sha()
9990 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9991 let selections = self.selections.all::<Point>(cx);
9992 let selection = selections.iter().peekable().next();
9993
9994 let (provider, remote) =
9995 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9996 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9997
9998 Ok(provider.build_permalink(
9999 remote,
10000 BuildPermalinkParams {
10001 sha: &sha,
10002 path: &path,
10003 selection: selection.map(|selection| {
10004 let range = selection.range();
10005 let start = range.start.row;
10006 let end = range.end.row;
10007 start..end
10008 }),
10009 },
10010 ))
10011 }
10012
10013 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10014 let permalink = self.get_permalink_to_line(cx);
10015
10016 match permalink {
10017 Ok(permalink) => {
10018 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10019 }
10020 Err(err) => {
10021 let message = format!("Failed to copy permalink: {err}");
10022
10023 Err::<(), anyhow::Error>(err).log_err();
10024
10025 if let Some(workspace) = self.workspace() {
10026 workspace.update(cx, |workspace, cx| {
10027 struct CopyPermalinkToLine;
10028
10029 workspace.show_toast(
10030 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10031 cx,
10032 )
10033 })
10034 }
10035 }
10036 }
10037 }
10038
10039 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10040 let permalink = self.get_permalink_to_line(cx);
10041
10042 match permalink {
10043 Ok(permalink) => {
10044 cx.open_url(permalink.as_ref());
10045 }
10046 Err(err) => {
10047 let message = format!("Failed to open permalink: {err}");
10048
10049 Err::<(), anyhow::Error>(err).log_err();
10050
10051 if let Some(workspace) = self.workspace() {
10052 workspace.update(cx, |workspace, cx| {
10053 struct OpenPermalinkToLine;
10054
10055 workspace.show_toast(
10056 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10057 cx,
10058 )
10059 })
10060 }
10061 }
10062 }
10063 }
10064
10065 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10066 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10067 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10068 pub fn highlight_rows<T: 'static>(
10069 &mut self,
10070 rows: RangeInclusive<Anchor>,
10071 color: Option<Hsla>,
10072 should_autoscroll: bool,
10073 cx: &mut ViewContext<Self>,
10074 ) {
10075 let snapshot = self.buffer().read(cx).snapshot(cx);
10076 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10077 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10078 highlight
10079 .range
10080 .start()
10081 .cmp(&rows.start(), &snapshot)
10082 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10083 });
10084 match (color, existing_highlight_index) {
10085 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10086 ix,
10087 RowHighlight {
10088 index: post_inc(&mut self.highlight_order),
10089 range: rows,
10090 should_autoscroll,
10091 color,
10092 },
10093 ),
10094 (None, Ok(i)) => {
10095 row_highlights.remove(i);
10096 }
10097 }
10098 }
10099
10100 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10101 pub fn clear_row_highlights<T: 'static>(&mut self) {
10102 self.highlighted_rows.remove(&TypeId::of::<T>());
10103 }
10104
10105 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10106 pub fn highlighted_rows<T: 'static>(
10107 &self,
10108 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10109 Some(
10110 self.highlighted_rows
10111 .get(&TypeId::of::<T>())?
10112 .iter()
10113 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10114 )
10115 }
10116
10117 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10118 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10119 /// Allows to ignore certain kinds of highlights.
10120 pub fn highlighted_display_rows(
10121 &mut self,
10122 cx: &mut WindowContext,
10123 ) -> BTreeMap<DisplayRow, Hsla> {
10124 let snapshot = self.snapshot(cx);
10125 let mut used_highlight_orders = HashMap::default();
10126 self.highlighted_rows
10127 .iter()
10128 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10129 .fold(
10130 BTreeMap::<DisplayRow, Hsla>::new(),
10131 |mut unique_rows, highlight| {
10132 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10133 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10134 for row in start_row.0..=end_row.0 {
10135 let used_index =
10136 used_highlight_orders.entry(row).or_insert(highlight.index);
10137 if highlight.index >= *used_index {
10138 *used_index = highlight.index;
10139 match highlight.color {
10140 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10141 None => unique_rows.remove(&DisplayRow(row)),
10142 };
10143 }
10144 }
10145 unique_rows
10146 },
10147 )
10148 }
10149
10150 pub fn highlighted_display_row_for_autoscroll(
10151 &self,
10152 snapshot: &DisplaySnapshot,
10153 ) -> Option<DisplayRow> {
10154 self.highlighted_rows
10155 .values()
10156 .flat_map(|highlighted_rows| highlighted_rows.iter())
10157 .filter_map(|highlight| {
10158 if highlight.color.is_none() || !highlight.should_autoscroll {
10159 return None;
10160 }
10161 Some(highlight.range.start().to_display_point(&snapshot).row())
10162 })
10163 .min()
10164 }
10165
10166 pub fn set_search_within_ranges(
10167 &mut self,
10168 ranges: &[Range<Anchor>],
10169 cx: &mut ViewContext<Self>,
10170 ) {
10171 self.highlight_background::<SearchWithinRange>(
10172 ranges,
10173 |colors| colors.editor_document_highlight_read_background,
10174 cx,
10175 )
10176 }
10177
10178 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10179 self.clear_background_highlights::<SearchWithinRange>(cx);
10180 }
10181
10182 pub fn highlight_background<T: 'static>(
10183 &mut self,
10184 ranges: &[Range<Anchor>],
10185 color_fetcher: fn(&ThemeColors) -> Hsla,
10186 cx: &mut ViewContext<Self>,
10187 ) {
10188 let snapshot = self.snapshot(cx);
10189 // this is to try and catch a panic sooner
10190 for range in ranges {
10191 snapshot
10192 .buffer_snapshot
10193 .summary_for_anchor::<usize>(&range.start);
10194 snapshot
10195 .buffer_snapshot
10196 .summary_for_anchor::<usize>(&range.end);
10197 }
10198
10199 self.background_highlights
10200 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10201 self.scrollbar_marker_state.dirty = true;
10202 cx.notify();
10203 }
10204
10205 pub fn clear_background_highlights<T: 'static>(
10206 &mut self,
10207 cx: &mut ViewContext<Self>,
10208 ) -> Option<BackgroundHighlight> {
10209 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10210 if !text_highlights.1.is_empty() {
10211 self.scrollbar_marker_state.dirty = true;
10212 cx.notify();
10213 }
10214 Some(text_highlights)
10215 }
10216
10217 #[cfg(feature = "test-support")]
10218 pub fn all_text_background_highlights(
10219 &mut self,
10220 cx: &mut ViewContext<Self>,
10221 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10222 let snapshot = self.snapshot(cx);
10223 let buffer = &snapshot.buffer_snapshot;
10224 let start = buffer.anchor_before(0);
10225 let end = buffer.anchor_after(buffer.len());
10226 let theme = cx.theme().colors();
10227 self.background_highlights_in_range(start..end, &snapshot, theme)
10228 }
10229
10230 fn document_highlights_for_position<'a>(
10231 &'a self,
10232 position: Anchor,
10233 buffer: &'a MultiBufferSnapshot,
10234 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10235 let read_highlights = self
10236 .background_highlights
10237 .get(&TypeId::of::<DocumentHighlightRead>())
10238 .map(|h| &h.1);
10239 let write_highlights = self
10240 .background_highlights
10241 .get(&TypeId::of::<DocumentHighlightWrite>())
10242 .map(|h| &h.1);
10243 let left_position = position.bias_left(buffer);
10244 let right_position = position.bias_right(buffer);
10245 read_highlights
10246 .into_iter()
10247 .chain(write_highlights)
10248 .flat_map(move |ranges| {
10249 let start_ix = match ranges.binary_search_by(|probe| {
10250 let cmp = probe.end.cmp(&left_position, buffer);
10251 if cmp.is_ge() {
10252 Ordering::Greater
10253 } else {
10254 Ordering::Less
10255 }
10256 }) {
10257 Ok(i) | Err(i) => i,
10258 };
10259
10260 ranges[start_ix..]
10261 .iter()
10262 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10263 })
10264 }
10265
10266 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10267 self.background_highlights
10268 .get(&TypeId::of::<T>())
10269 .map_or(false, |(_, highlights)| !highlights.is_empty())
10270 }
10271
10272 pub fn background_highlights_in_range(
10273 &self,
10274 search_range: Range<Anchor>,
10275 display_snapshot: &DisplaySnapshot,
10276 theme: &ThemeColors,
10277 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10278 let mut results = Vec::new();
10279 for (color_fetcher, ranges) in self.background_highlights.values() {
10280 let color = color_fetcher(theme);
10281 let start_ix = match ranges.binary_search_by(|probe| {
10282 let cmp = probe
10283 .end
10284 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10285 if cmp.is_gt() {
10286 Ordering::Greater
10287 } else {
10288 Ordering::Less
10289 }
10290 }) {
10291 Ok(i) | Err(i) => i,
10292 };
10293 for range in &ranges[start_ix..] {
10294 if range
10295 .start
10296 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10297 .is_ge()
10298 {
10299 break;
10300 }
10301
10302 let start = range.start.to_display_point(&display_snapshot);
10303 let end = range.end.to_display_point(&display_snapshot);
10304 results.push((start..end, color))
10305 }
10306 }
10307 results
10308 }
10309
10310 pub fn background_highlight_row_ranges<T: 'static>(
10311 &self,
10312 search_range: Range<Anchor>,
10313 display_snapshot: &DisplaySnapshot,
10314 count: usize,
10315 ) -> Vec<RangeInclusive<DisplayPoint>> {
10316 let mut results = Vec::new();
10317 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10318 return vec![];
10319 };
10320
10321 let start_ix = match ranges.binary_search_by(|probe| {
10322 let cmp = probe
10323 .end
10324 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10325 if cmp.is_gt() {
10326 Ordering::Greater
10327 } else {
10328 Ordering::Less
10329 }
10330 }) {
10331 Ok(i) | Err(i) => i,
10332 };
10333 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10334 if let (Some(start_display), Some(end_display)) = (start, end) {
10335 results.push(
10336 start_display.to_display_point(display_snapshot)
10337 ..=end_display.to_display_point(display_snapshot),
10338 );
10339 }
10340 };
10341 let mut start_row: Option<Point> = None;
10342 let mut end_row: Option<Point> = None;
10343 if ranges.len() > count {
10344 return Vec::new();
10345 }
10346 for range in &ranges[start_ix..] {
10347 if range
10348 .start
10349 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10350 .is_ge()
10351 {
10352 break;
10353 }
10354 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10355 if let Some(current_row) = &end_row {
10356 if end.row == current_row.row {
10357 continue;
10358 }
10359 }
10360 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10361 if start_row.is_none() {
10362 assert_eq!(end_row, None);
10363 start_row = Some(start);
10364 end_row = Some(end);
10365 continue;
10366 }
10367 if let Some(current_end) = end_row.as_mut() {
10368 if start.row > current_end.row + 1 {
10369 push_region(start_row, end_row);
10370 start_row = Some(start);
10371 end_row = Some(end);
10372 } else {
10373 // Merge two hunks.
10374 *current_end = end;
10375 }
10376 } else {
10377 unreachable!();
10378 }
10379 }
10380 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10381 push_region(start_row, end_row);
10382 results
10383 }
10384
10385 /// Get the text ranges corresponding to the redaction query
10386 pub fn redacted_ranges(
10387 &self,
10388 search_range: Range<Anchor>,
10389 display_snapshot: &DisplaySnapshot,
10390 cx: &WindowContext,
10391 ) -> Vec<Range<DisplayPoint>> {
10392 display_snapshot
10393 .buffer_snapshot
10394 .redacted_ranges(search_range, |file| {
10395 if let Some(file) = file {
10396 file.is_private()
10397 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10398 } else {
10399 false
10400 }
10401 })
10402 .map(|range| {
10403 range.start.to_display_point(display_snapshot)
10404 ..range.end.to_display_point(display_snapshot)
10405 })
10406 .collect()
10407 }
10408
10409 pub fn highlight_text<T: 'static>(
10410 &mut self,
10411 ranges: Vec<Range<Anchor>>,
10412 style: HighlightStyle,
10413 cx: &mut ViewContext<Self>,
10414 ) {
10415 self.display_map.update(cx, |map, _| {
10416 map.highlight_text(TypeId::of::<T>(), ranges, style)
10417 });
10418 cx.notify();
10419 }
10420
10421 pub(crate) fn highlight_inlays<T: 'static>(
10422 &mut self,
10423 highlights: Vec<InlayHighlight>,
10424 style: HighlightStyle,
10425 cx: &mut ViewContext<Self>,
10426 ) {
10427 self.display_map.update(cx, |map, _| {
10428 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10429 });
10430 cx.notify();
10431 }
10432
10433 pub fn text_highlights<'a, T: 'static>(
10434 &'a self,
10435 cx: &'a AppContext,
10436 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10437 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10438 }
10439
10440 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10441 let cleared = self
10442 .display_map
10443 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10444 if cleared {
10445 cx.notify();
10446 }
10447 }
10448
10449 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10450 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10451 && self.focus_handle.is_focused(cx)
10452 }
10453
10454 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10455 cx.notify();
10456 }
10457
10458 fn on_buffer_event(
10459 &mut self,
10460 multibuffer: Model<MultiBuffer>,
10461 event: &multi_buffer::Event,
10462 cx: &mut ViewContext<Self>,
10463 ) {
10464 match event {
10465 multi_buffer::Event::Edited {
10466 singleton_buffer_edited,
10467 } => {
10468 self.scrollbar_marker_state.dirty = true;
10469 self.active_indent_guides_state.dirty = true;
10470 self.refresh_active_diagnostics(cx);
10471 self.refresh_code_actions(cx);
10472 if self.has_active_inline_completion(cx) {
10473 self.update_visible_inline_completion(cx);
10474 }
10475 cx.emit(EditorEvent::BufferEdited);
10476 cx.emit(SearchEvent::MatchesInvalidated);
10477
10478 if *singleton_buffer_edited {
10479 if let Some(project) = &self.project {
10480 let project = project.read(cx);
10481 let languages_affected = multibuffer
10482 .read(cx)
10483 .all_buffers()
10484 .into_iter()
10485 .filter_map(|buffer| {
10486 let buffer = buffer.read(cx);
10487 let language = buffer.language()?;
10488 if project.is_local()
10489 && project.language_servers_for_buffer(buffer, cx).count() == 0
10490 {
10491 None
10492 } else {
10493 Some(language)
10494 }
10495 })
10496 .cloned()
10497 .collect::<HashSet<_>>();
10498 if !languages_affected.is_empty() {
10499 self.refresh_inlay_hints(
10500 InlayHintRefreshReason::BufferEdited(languages_affected),
10501 cx,
10502 );
10503 }
10504 }
10505 }
10506
10507 let Some(project) = &self.project else { return };
10508 let telemetry = project.read(cx).client().telemetry().clone();
10509 telemetry.log_edit_event("editor");
10510 }
10511 multi_buffer::Event::ExcerptsAdded {
10512 buffer,
10513 predecessor,
10514 excerpts,
10515 } => {
10516 self.tasks_update_task = Some(self.refresh_runnables(cx));
10517 cx.emit(EditorEvent::ExcerptsAdded {
10518 buffer: buffer.clone(),
10519 predecessor: *predecessor,
10520 excerpts: excerpts.clone(),
10521 });
10522 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10523 }
10524 multi_buffer::Event::ExcerptsRemoved { ids } => {
10525 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10526 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10527 }
10528 multi_buffer::Event::Reparsed => {
10529 self.tasks_update_task = Some(self.refresh_runnables(cx));
10530
10531 cx.emit(EditorEvent::Reparsed);
10532 }
10533 multi_buffer::Event::LanguageChanged => {
10534 cx.emit(EditorEvent::Reparsed);
10535 cx.notify();
10536 }
10537 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10538 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10539 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10540 cx.emit(EditorEvent::TitleChanged)
10541 }
10542 multi_buffer::Event::DiffBaseChanged => {
10543 self.scrollbar_marker_state.dirty = true;
10544 cx.emit(EditorEvent::DiffBaseChanged);
10545 cx.notify();
10546 }
10547 multi_buffer::Event::DiffUpdated { buffer } => {
10548 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10549 cx.notify();
10550 }
10551 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10552 multi_buffer::Event::DiagnosticsUpdated => {
10553 self.refresh_active_diagnostics(cx);
10554 self.scrollbar_marker_state.dirty = true;
10555 cx.notify();
10556 }
10557 _ => {}
10558 };
10559 }
10560
10561 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10562 cx.notify();
10563 }
10564
10565 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10566 self.refresh_inline_completion(true, cx);
10567 self.refresh_inlay_hints(
10568 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10569 self.selections.newest_anchor().head(),
10570 &self.buffer.read(cx).snapshot(cx),
10571 cx,
10572 )),
10573 cx,
10574 );
10575 let editor_settings = EditorSettings::get_global(cx);
10576 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10577 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10578 self.current_line_highlight = editor_settings.current_line_highlight;
10579
10580 if self.mode == EditorMode::Full {
10581 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10582 if self.git_blame_inline_enabled != inline_blame_enabled {
10583 self.toggle_git_blame_inline_internal(false, cx);
10584 }
10585 }
10586
10587 cx.notify();
10588 }
10589
10590 pub fn set_searchable(&mut self, searchable: bool) {
10591 self.searchable = searchable;
10592 }
10593
10594 pub fn searchable(&self) -> bool {
10595 self.searchable
10596 }
10597
10598 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10599 self.open_excerpts_common(true, cx)
10600 }
10601
10602 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10603 self.open_excerpts_common(false, cx)
10604 }
10605
10606 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10607 let buffer = self.buffer.read(cx);
10608 if buffer.is_singleton() {
10609 cx.propagate();
10610 return;
10611 }
10612
10613 let Some(workspace) = self.workspace() else {
10614 cx.propagate();
10615 return;
10616 };
10617
10618 let mut new_selections_by_buffer = HashMap::default();
10619 for selection in self.selections.all::<usize>(cx) {
10620 for (buffer, mut range, _) in
10621 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10622 {
10623 if selection.reversed {
10624 mem::swap(&mut range.start, &mut range.end);
10625 }
10626 new_selections_by_buffer
10627 .entry(buffer)
10628 .or_insert(Vec::new())
10629 .push(range)
10630 }
10631 }
10632
10633 // We defer the pane interaction because we ourselves are a workspace item
10634 // and activating a new item causes the pane to call a method on us reentrantly,
10635 // which panics if we're on the stack.
10636 cx.window_context().defer(move |cx| {
10637 workspace.update(cx, |workspace, cx| {
10638 let pane = if split {
10639 workspace.adjacent_pane(cx)
10640 } else {
10641 workspace.active_pane().clone()
10642 };
10643
10644 for (buffer, ranges) in new_selections_by_buffer {
10645 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10646 editor.update(cx, |editor, cx| {
10647 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10648 s.select_ranges(ranges);
10649 });
10650 });
10651 }
10652 })
10653 });
10654 }
10655
10656 fn jump(
10657 &mut self,
10658 path: ProjectPath,
10659 position: Point,
10660 anchor: language::Anchor,
10661 offset_from_top: u32,
10662 cx: &mut ViewContext<Self>,
10663 ) {
10664 let workspace = self.workspace();
10665 cx.spawn(|_, mut cx| async move {
10666 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10667 let editor = workspace.update(&mut cx, |workspace, cx| {
10668 // Reset the preview item id before opening the new item
10669 workspace.active_pane().update(cx, |pane, cx| {
10670 pane.set_preview_item_id(None, cx);
10671 });
10672 workspace.open_path_preview(path, None, true, true, cx)
10673 })?;
10674 let editor = editor
10675 .await?
10676 .downcast::<Editor>()
10677 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10678 .downgrade();
10679 editor.update(&mut cx, |editor, cx| {
10680 let buffer = editor
10681 .buffer()
10682 .read(cx)
10683 .as_singleton()
10684 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10685 let buffer = buffer.read(cx);
10686 let cursor = if buffer.can_resolve(&anchor) {
10687 language::ToPoint::to_point(&anchor, buffer)
10688 } else {
10689 buffer.clip_point(position, Bias::Left)
10690 };
10691
10692 let nav_history = editor.nav_history.take();
10693 editor.change_selections(
10694 Some(Autoscroll::top_relative(offset_from_top as usize)),
10695 cx,
10696 |s| {
10697 s.select_ranges([cursor..cursor]);
10698 },
10699 );
10700 editor.nav_history = nav_history;
10701
10702 anyhow::Ok(())
10703 })??;
10704
10705 anyhow::Ok(())
10706 })
10707 .detach_and_log_err(cx);
10708 }
10709
10710 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10711 let snapshot = self.buffer.read(cx).read(cx);
10712 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10713 Some(
10714 ranges
10715 .iter()
10716 .map(move |range| {
10717 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10718 })
10719 .collect(),
10720 )
10721 }
10722
10723 fn selection_replacement_ranges(
10724 &self,
10725 range: Range<OffsetUtf16>,
10726 cx: &AppContext,
10727 ) -> Vec<Range<OffsetUtf16>> {
10728 let selections = self.selections.all::<OffsetUtf16>(cx);
10729 let newest_selection = selections
10730 .iter()
10731 .max_by_key(|selection| selection.id)
10732 .unwrap();
10733 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10734 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10735 let snapshot = self.buffer.read(cx).read(cx);
10736 selections
10737 .into_iter()
10738 .map(|mut selection| {
10739 selection.start.0 =
10740 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10741 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10742 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10743 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10744 })
10745 .collect()
10746 }
10747
10748 fn report_editor_event(
10749 &self,
10750 operation: &'static str,
10751 file_extension: Option<String>,
10752 cx: &AppContext,
10753 ) {
10754 if cfg!(any(test, feature = "test-support")) {
10755 return;
10756 }
10757
10758 let Some(project) = &self.project else { return };
10759
10760 // If None, we are in a file without an extension
10761 let file = self
10762 .buffer
10763 .read(cx)
10764 .as_singleton()
10765 .and_then(|b| b.read(cx).file());
10766 let file_extension = file_extension.or(file
10767 .as_ref()
10768 .and_then(|file| Path::new(file.file_name(cx)).extension())
10769 .and_then(|e| e.to_str())
10770 .map(|a| a.to_string()));
10771
10772 let vim_mode = cx
10773 .global::<SettingsStore>()
10774 .raw_user_settings()
10775 .get("vim_mode")
10776 == Some(&serde_json::Value::Bool(true));
10777
10778 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10779 == language::language_settings::InlineCompletionProvider::Copilot;
10780 let copilot_enabled_for_language = self
10781 .buffer
10782 .read(cx)
10783 .settings_at(0, cx)
10784 .show_inline_completions;
10785
10786 let telemetry = project.read(cx).client().telemetry().clone();
10787 telemetry.report_editor_event(
10788 file_extension,
10789 vim_mode,
10790 operation,
10791 copilot_enabled,
10792 copilot_enabled_for_language,
10793 )
10794 }
10795
10796 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10797 /// with each line being an array of {text, highlight} objects.
10798 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10799 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10800 return;
10801 };
10802
10803 #[derive(Serialize)]
10804 struct Chunk<'a> {
10805 text: String,
10806 highlight: Option<&'a str>,
10807 }
10808
10809 let snapshot = buffer.read(cx).snapshot();
10810 let range = self
10811 .selected_text_range(cx)
10812 .and_then(|selected_range| {
10813 if selected_range.is_empty() {
10814 None
10815 } else {
10816 Some(selected_range)
10817 }
10818 })
10819 .unwrap_or_else(|| 0..snapshot.len());
10820
10821 let chunks = snapshot.chunks(range, true);
10822 let mut lines = Vec::new();
10823 let mut line: VecDeque<Chunk> = VecDeque::new();
10824
10825 let Some(style) = self.style.as_ref() else {
10826 return;
10827 };
10828
10829 for chunk in chunks {
10830 let highlight = chunk
10831 .syntax_highlight_id
10832 .and_then(|id| id.name(&style.syntax));
10833 let mut chunk_lines = chunk.text.split('\n').peekable();
10834 while let Some(text) = chunk_lines.next() {
10835 let mut merged_with_last_token = false;
10836 if let Some(last_token) = line.back_mut() {
10837 if last_token.highlight == highlight {
10838 last_token.text.push_str(text);
10839 merged_with_last_token = true;
10840 }
10841 }
10842
10843 if !merged_with_last_token {
10844 line.push_back(Chunk {
10845 text: text.into(),
10846 highlight,
10847 });
10848 }
10849
10850 if chunk_lines.peek().is_some() {
10851 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10852 line.pop_front();
10853 }
10854 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10855 line.pop_back();
10856 }
10857
10858 lines.push(mem::take(&mut line));
10859 }
10860 }
10861 }
10862
10863 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10864 return;
10865 };
10866 cx.write_to_clipboard(ClipboardItem::new(lines));
10867 }
10868
10869 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10870 &self.inlay_hint_cache
10871 }
10872
10873 pub fn replay_insert_event(
10874 &mut self,
10875 text: &str,
10876 relative_utf16_range: Option<Range<isize>>,
10877 cx: &mut ViewContext<Self>,
10878 ) {
10879 if !self.input_enabled {
10880 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10881 return;
10882 }
10883 if let Some(relative_utf16_range) = relative_utf16_range {
10884 let selections = self.selections.all::<OffsetUtf16>(cx);
10885 self.change_selections(None, cx, |s| {
10886 let new_ranges = selections.into_iter().map(|range| {
10887 let start = OffsetUtf16(
10888 range
10889 .head()
10890 .0
10891 .saturating_add_signed(relative_utf16_range.start),
10892 );
10893 let end = OffsetUtf16(
10894 range
10895 .head()
10896 .0
10897 .saturating_add_signed(relative_utf16_range.end),
10898 );
10899 start..end
10900 });
10901 s.select_ranges(new_ranges);
10902 });
10903 }
10904
10905 self.handle_input(text, cx);
10906 }
10907
10908 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10909 let Some(project) = self.project.as_ref() else {
10910 return false;
10911 };
10912 let project = project.read(cx);
10913
10914 let mut supports = false;
10915 self.buffer().read(cx).for_each_buffer(|buffer| {
10916 if !supports {
10917 supports = project
10918 .language_servers_for_buffer(buffer.read(cx), cx)
10919 .any(
10920 |(_, server)| match server.capabilities().inlay_hint_provider {
10921 Some(lsp::OneOf::Left(enabled)) => enabled,
10922 Some(lsp::OneOf::Right(_)) => true,
10923 None => false,
10924 },
10925 )
10926 }
10927 });
10928 supports
10929 }
10930
10931 pub fn focus(&self, cx: &mut WindowContext) {
10932 cx.focus(&self.focus_handle)
10933 }
10934
10935 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10936 self.focus_handle.is_focused(cx)
10937 }
10938
10939 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10940 cx.emit(EditorEvent::Focused);
10941 if let Some(rename) = self.pending_rename.as_ref() {
10942 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10943 cx.focus(&rename_editor_focus_handle);
10944 } else {
10945 if let Some(blame) = self.blame.as_ref() {
10946 blame.update(cx, GitBlame::focus)
10947 }
10948
10949 self.blink_manager.update(cx, BlinkManager::enable);
10950 self.show_cursor_names(cx);
10951 self.buffer.update(cx, |buffer, cx| {
10952 buffer.finalize_last_transaction(cx);
10953 if self.leader_peer_id.is_none() {
10954 buffer.set_active_selections(
10955 &self.selections.disjoint_anchors(),
10956 self.selections.line_mode,
10957 self.cursor_shape,
10958 cx,
10959 );
10960 }
10961 });
10962 }
10963 }
10964
10965 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10966 self.blink_manager.update(cx, BlinkManager::disable);
10967 self.buffer
10968 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10969
10970 if let Some(blame) = self.blame.as_ref() {
10971 blame.update(cx, GitBlame::blur)
10972 }
10973 self.hide_context_menu(cx);
10974 hide_hover(self, cx);
10975 cx.emit(EditorEvent::Blurred);
10976 cx.notify();
10977 }
10978
10979 pub fn register_action<A: Action>(
10980 &mut self,
10981 listener: impl Fn(&A, &mut WindowContext) + 'static,
10982 ) -> &mut Self {
10983 let listener = Arc::new(listener);
10984
10985 self.editor_actions.push(Box::new(move |cx| {
10986 let _view = cx.view().clone();
10987 let cx = cx.window_context();
10988 let listener = listener.clone();
10989 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10990 let action = action.downcast_ref().unwrap();
10991 if phase == DispatchPhase::Bubble {
10992 listener(action, cx)
10993 }
10994 })
10995 }));
10996 self
10997 }
10998}
10999
11000fn hunks_for_selections(
11001 multi_buffer_snapshot: &MultiBufferSnapshot,
11002 selections: &[Selection<Anchor>],
11003) -> Vec<DiffHunk<MultiBufferRow>> {
11004 let mut hunks = Vec::with_capacity(selections.len());
11005 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11006 HashMap::default();
11007 let buffer_rows_for_selections = selections.iter().map(|selection| {
11008 let head = selection.head();
11009 let tail = selection.tail();
11010 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11011 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11012 if start > end {
11013 end..start
11014 } else {
11015 start..end
11016 }
11017 });
11018
11019 for selected_multi_buffer_rows in buffer_rows_for_selections {
11020 let query_rows =
11021 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11022 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11023 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11024 // when the caret is just above or just below the deleted hunk.
11025 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11026 let related_to_selection = if allow_adjacent {
11027 hunk.associated_range.overlaps(&query_rows)
11028 || hunk.associated_range.start == query_rows.end
11029 || hunk.associated_range.end == query_rows.start
11030 } else {
11031 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11032 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11033 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11034 || selected_multi_buffer_rows.end == hunk.associated_range.start
11035 };
11036 if related_to_selection {
11037 if !processed_buffer_rows
11038 .entry(hunk.buffer_id)
11039 .or_default()
11040 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11041 {
11042 continue;
11043 }
11044 hunks.push(hunk);
11045 }
11046 }
11047 }
11048
11049 hunks
11050}
11051
11052pub trait CollaborationHub {
11053 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11054 fn user_participant_indices<'a>(
11055 &self,
11056 cx: &'a AppContext,
11057 ) -> &'a HashMap<u64, ParticipantIndex>;
11058 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11059}
11060
11061impl CollaborationHub for Model<Project> {
11062 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11063 self.read(cx).collaborators()
11064 }
11065
11066 fn user_participant_indices<'a>(
11067 &self,
11068 cx: &'a AppContext,
11069 ) -> &'a HashMap<u64, ParticipantIndex> {
11070 self.read(cx).user_store().read(cx).participant_indices()
11071 }
11072
11073 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11074 let this = self.read(cx);
11075 let user_ids = this.collaborators().values().map(|c| c.user_id);
11076 this.user_store().read_with(cx, |user_store, cx| {
11077 user_store.participant_names(user_ids, cx)
11078 })
11079 }
11080}
11081
11082pub trait CompletionProvider {
11083 fn completions(
11084 &self,
11085 buffer: &Model<Buffer>,
11086 buffer_position: text::Anchor,
11087 cx: &mut ViewContext<Editor>,
11088 ) -> Task<Result<Vec<Completion>>>;
11089
11090 fn resolve_completions(
11091 &self,
11092 buffer: Model<Buffer>,
11093 completion_indices: Vec<usize>,
11094 completions: Arc<RwLock<Box<[Completion]>>>,
11095 cx: &mut ViewContext<Editor>,
11096 ) -> Task<Result<bool>>;
11097
11098 fn apply_additional_edits_for_completion(
11099 &self,
11100 buffer: Model<Buffer>,
11101 completion: Completion,
11102 push_to_history: bool,
11103 cx: &mut ViewContext<Editor>,
11104 ) -> Task<Result<Option<language::Transaction>>>;
11105
11106 fn is_completion_trigger(
11107 &self,
11108 buffer: &Model<Buffer>,
11109 position: language::Anchor,
11110 text: &str,
11111 trigger_in_words: bool,
11112 cx: &mut ViewContext<Editor>,
11113 ) -> bool;
11114}
11115
11116impl CompletionProvider for Model<Project> {
11117 fn completions(
11118 &self,
11119 buffer: &Model<Buffer>,
11120 buffer_position: text::Anchor,
11121 cx: &mut ViewContext<Editor>,
11122 ) -> Task<Result<Vec<Completion>>> {
11123 self.update(cx, |project, cx| {
11124 project.completions(&buffer, buffer_position, cx)
11125 })
11126 }
11127
11128 fn resolve_completions(
11129 &self,
11130 buffer: Model<Buffer>,
11131 completion_indices: Vec<usize>,
11132 completions: Arc<RwLock<Box<[Completion]>>>,
11133 cx: &mut ViewContext<Editor>,
11134 ) -> Task<Result<bool>> {
11135 self.update(cx, |project, cx| {
11136 project.resolve_completions(buffer, completion_indices, completions, cx)
11137 })
11138 }
11139
11140 fn apply_additional_edits_for_completion(
11141 &self,
11142 buffer: Model<Buffer>,
11143 completion: Completion,
11144 push_to_history: bool,
11145 cx: &mut ViewContext<Editor>,
11146 ) -> Task<Result<Option<language::Transaction>>> {
11147 self.update(cx, |project, cx| {
11148 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11149 })
11150 }
11151
11152 fn is_completion_trigger(
11153 &self,
11154 buffer: &Model<Buffer>,
11155 position: language::Anchor,
11156 text: &str,
11157 trigger_in_words: bool,
11158 cx: &mut ViewContext<Editor>,
11159 ) -> bool {
11160 if !EditorSettings::get_global(cx).show_completions_on_input {
11161 return false;
11162 }
11163
11164 let mut chars = text.chars();
11165 let char = if let Some(char) = chars.next() {
11166 char
11167 } else {
11168 return false;
11169 };
11170 if chars.next().is_some() {
11171 return false;
11172 }
11173
11174 let buffer = buffer.read(cx);
11175 let scope = buffer.snapshot().language_scope_at(position);
11176 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11177 return true;
11178 }
11179
11180 buffer
11181 .completion_triggers()
11182 .iter()
11183 .any(|string| string == text)
11184 }
11185}
11186
11187fn inlay_hint_settings(
11188 location: Anchor,
11189 snapshot: &MultiBufferSnapshot,
11190 cx: &mut ViewContext<'_, Editor>,
11191) -> InlayHintSettings {
11192 let file = snapshot.file_at(location);
11193 let language = snapshot.language_at(location);
11194 let settings = all_language_settings(file, cx);
11195 settings
11196 .language(language.map(|l| l.name()).as_deref())
11197 .inlay_hints
11198}
11199
11200fn consume_contiguous_rows(
11201 contiguous_row_selections: &mut Vec<Selection<Point>>,
11202 selection: &Selection<Point>,
11203 display_map: &DisplaySnapshot,
11204 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11205) -> (MultiBufferRow, MultiBufferRow) {
11206 contiguous_row_selections.push(selection.clone());
11207 let start_row = MultiBufferRow(selection.start.row);
11208 let mut end_row = ending_row(selection, display_map);
11209
11210 while let Some(next_selection) = selections.peek() {
11211 if next_selection.start.row <= end_row.0 {
11212 end_row = ending_row(next_selection, display_map);
11213 contiguous_row_selections.push(selections.next().unwrap().clone());
11214 } else {
11215 break;
11216 }
11217 }
11218 (start_row, end_row)
11219}
11220
11221fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11222 if next_selection.end.column > 0 || next_selection.is_empty() {
11223 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11224 } else {
11225 MultiBufferRow(next_selection.end.row)
11226 }
11227}
11228
11229impl EditorSnapshot {
11230 pub fn remote_selections_in_range<'a>(
11231 &'a self,
11232 range: &'a Range<Anchor>,
11233 collaboration_hub: &dyn CollaborationHub,
11234 cx: &'a AppContext,
11235 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11236 let participant_names = collaboration_hub.user_names(cx);
11237 let participant_indices = collaboration_hub.user_participant_indices(cx);
11238 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11239 let collaborators_by_replica_id = collaborators_by_peer_id
11240 .iter()
11241 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11242 .collect::<HashMap<_, _>>();
11243 self.buffer_snapshot
11244 .remote_selections_in_range(range)
11245 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11246 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11247 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11248 let user_name = participant_names.get(&collaborator.user_id).cloned();
11249 Some(RemoteSelection {
11250 replica_id,
11251 selection,
11252 cursor_shape,
11253 line_mode,
11254 participant_index,
11255 peer_id: collaborator.peer_id,
11256 user_name,
11257 })
11258 })
11259 }
11260
11261 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11262 self.display_snapshot.buffer_snapshot.language_at(position)
11263 }
11264
11265 pub fn is_focused(&self) -> bool {
11266 self.is_focused
11267 }
11268
11269 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11270 self.placeholder_text.as_ref()
11271 }
11272
11273 pub fn scroll_position(&self) -> gpui::Point<f32> {
11274 self.scroll_anchor.scroll_position(&self.display_snapshot)
11275 }
11276
11277 pub fn gutter_dimensions(
11278 &self,
11279 font_id: FontId,
11280 font_size: Pixels,
11281 em_width: Pixels,
11282 max_line_number_width: Pixels,
11283 cx: &AppContext,
11284 ) -> GutterDimensions {
11285 if !self.show_gutter {
11286 return GutterDimensions::default();
11287 }
11288 let descent = cx.text_system().descent(font_id, font_size);
11289
11290 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11291 matches!(
11292 ProjectSettings::get_global(cx).git.git_gutter,
11293 Some(GitGutterSetting::TrackedFiles)
11294 )
11295 });
11296 let gutter_settings = EditorSettings::get_global(cx).gutter;
11297 let show_line_numbers = self
11298 .show_line_numbers
11299 .unwrap_or_else(|| gutter_settings.line_numbers);
11300 let line_gutter_width = if show_line_numbers {
11301 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11302 let min_width_for_number_on_gutter = em_width * 4.0;
11303 max_line_number_width.max(min_width_for_number_on_gutter)
11304 } else {
11305 0.0.into()
11306 };
11307
11308 let show_code_actions = self
11309 .show_code_actions
11310 .unwrap_or_else(|| gutter_settings.code_actions);
11311
11312 let git_blame_entries_width = self
11313 .render_git_blame_gutter
11314 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11315
11316 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11317 left_padding += if show_code_actions {
11318 em_width * 3.0
11319 } else if show_git_gutter && show_line_numbers {
11320 em_width * 2.0
11321 } else if show_git_gutter || show_line_numbers {
11322 em_width
11323 } else {
11324 px(0.)
11325 };
11326
11327 let right_padding = if gutter_settings.folds && show_line_numbers {
11328 em_width * 4.0
11329 } else if gutter_settings.folds {
11330 em_width * 3.0
11331 } else if show_line_numbers {
11332 em_width
11333 } else {
11334 px(0.)
11335 };
11336
11337 GutterDimensions {
11338 left_padding,
11339 right_padding,
11340 width: line_gutter_width + left_padding + right_padding,
11341 margin: -descent,
11342 git_blame_entries_width,
11343 }
11344 }
11345
11346 pub fn render_fold_toggle(
11347 &self,
11348 buffer_row: MultiBufferRow,
11349 row_contains_cursor: bool,
11350 editor: View<Editor>,
11351 cx: &mut WindowContext,
11352 ) -> Option<AnyElement> {
11353 let folded = self.is_line_folded(buffer_row);
11354
11355 if let Some(flap) = self
11356 .flap_snapshot
11357 .query_row(buffer_row, &self.buffer_snapshot)
11358 {
11359 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11360 if folded {
11361 editor.update(cx, |editor, cx| {
11362 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11363 });
11364 } else {
11365 editor.update(cx, |editor, cx| {
11366 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11367 });
11368 }
11369 });
11370
11371 Some((flap.render_toggle)(
11372 buffer_row,
11373 folded,
11374 toggle_callback,
11375 cx,
11376 ))
11377 } else if folded
11378 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11379 {
11380 Some(
11381 IconButton::new(
11382 ("indent-fold-indicator", buffer_row.0),
11383 ui::IconName::ChevronDown,
11384 )
11385 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
11386 if folded {
11387 this.unfold_at(&UnfoldAt { buffer_row }, cx);
11388 } else {
11389 this.fold_at(&FoldAt { buffer_row }, cx);
11390 }
11391 }))
11392 .icon_color(ui::Color::Muted)
11393 .icon_size(ui::IconSize::Small)
11394 .selected(folded)
11395 .selected_icon(ui::IconName::ChevronRight)
11396 .size(ui::ButtonSize::None)
11397 .into_any_element(),
11398 )
11399 } else {
11400 None
11401 }
11402 }
11403
11404 pub fn render_flap_trailer(
11405 &self,
11406 buffer_row: MultiBufferRow,
11407 cx: &mut WindowContext,
11408 ) -> Option<AnyElement> {
11409 let folded = self.is_line_folded(buffer_row);
11410 let flap = self
11411 .flap_snapshot
11412 .query_row(buffer_row, &self.buffer_snapshot)?;
11413 Some((flap.render_trailer)(buffer_row, folded, cx))
11414 }
11415}
11416
11417impl Deref for EditorSnapshot {
11418 type Target = DisplaySnapshot;
11419
11420 fn deref(&self) -> &Self::Target {
11421 &self.display_snapshot
11422 }
11423}
11424
11425#[derive(Clone, Debug, PartialEq, Eq)]
11426pub enum EditorEvent {
11427 InputIgnored {
11428 text: Arc<str>,
11429 },
11430 InputHandled {
11431 utf16_range_to_replace: Option<Range<isize>>,
11432 text: Arc<str>,
11433 },
11434 ExcerptsAdded {
11435 buffer: Model<Buffer>,
11436 predecessor: ExcerptId,
11437 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11438 },
11439 ExcerptsRemoved {
11440 ids: Vec<ExcerptId>,
11441 },
11442 BufferEdited,
11443 Edited,
11444 Reparsed,
11445 Focused,
11446 Blurred,
11447 DirtyChanged,
11448 Saved,
11449 TitleChanged,
11450 DiffBaseChanged,
11451 SelectionsChanged {
11452 local: bool,
11453 },
11454 ScrollPositionChanged {
11455 local: bool,
11456 autoscroll: bool,
11457 },
11458 Closed,
11459 TransactionUndone {
11460 transaction_id: clock::Lamport,
11461 },
11462 TransactionBegun {
11463 transaction_id: clock::Lamport,
11464 },
11465}
11466
11467impl EventEmitter<EditorEvent> for Editor {}
11468
11469impl FocusableView for Editor {
11470 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11471 self.focus_handle.clone()
11472 }
11473}
11474
11475impl Render for Editor {
11476 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11477 let settings = ThemeSettings::get_global(cx);
11478
11479 let text_style = match self.mode {
11480 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11481 color: cx.theme().colors().editor_foreground,
11482 font_family: settings.ui_font.family.clone(),
11483 font_features: settings.ui_font.features.clone(),
11484 font_size: rems(0.875).into(),
11485 font_weight: settings.ui_font.weight,
11486 font_style: FontStyle::Normal,
11487 line_height: relative(settings.buffer_line_height.value()),
11488 background_color: None,
11489 underline: None,
11490 strikethrough: None,
11491 white_space: WhiteSpace::Normal,
11492 },
11493 EditorMode::Full => TextStyle {
11494 color: cx.theme().colors().editor_foreground,
11495 font_family: settings.buffer_font.family.clone(),
11496 font_features: settings.buffer_font.features.clone(),
11497 font_size: settings.buffer_font_size(cx).into(),
11498 font_weight: settings.buffer_font.weight,
11499 font_style: FontStyle::Normal,
11500 line_height: relative(settings.buffer_line_height.value()),
11501 background_color: None,
11502 underline: None,
11503 strikethrough: None,
11504 white_space: WhiteSpace::Normal,
11505 },
11506 };
11507
11508 let background = match self.mode {
11509 EditorMode::SingleLine => cx.theme().system().transparent,
11510 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11511 EditorMode::Full => cx.theme().colors().editor_background,
11512 };
11513
11514 EditorElement::new(
11515 cx.view(),
11516 EditorStyle {
11517 background,
11518 local_player: cx.theme().players().local(),
11519 text: text_style,
11520 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11521 syntax: cx.theme().syntax().clone(),
11522 status: cx.theme().status().clone(),
11523 inlay_hints_style: HighlightStyle {
11524 color: Some(cx.theme().status().hint),
11525 ..HighlightStyle::default()
11526 },
11527 suggestions_style: HighlightStyle {
11528 color: Some(cx.theme().status().predictive),
11529 ..HighlightStyle::default()
11530 },
11531 },
11532 )
11533 }
11534}
11535
11536impl ViewInputHandler for Editor {
11537 fn text_for_range(
11538 &mut self,
11539 range_utf16: Range<usize>,
11540 cx: &mut ViewContext<Self>,
11541 ) -> Option<String> {
11542 Some(
11543 self.buffer
11544 .read(cx)
11545 .read(cx)
11546 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11547 .collect(),
11548 )
11549 }
11550
11551 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11552 // Prevent the IME menu from appearing when holding down an alphabetic key
11553 // while input is disabled.
11554 if !self.input_enabled {
11555 return None;
11556 }
11557
11558 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11559 Some(range.start.0..range.end.0)
11560 }
11561
11562 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11563 let snapshot = self.buffer.read(cx).read(cx);
11564 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11565 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11566 }
11567
11568 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11569 self.clear_highlights::<InputComposition>(cx);
11570 self.ime_transaction.take();
11571 }
11572
11573 fn replace_text_in_range(
11574 &mut self,
11575 range_utf16: Option<Range<usize>>,
11576 text: &str,
11577 cx: &mut ViewContext<Self>,
11578 ) {
11579 if !self.input_enabled {
11580 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11581 return;
11582 }
11583
11584 self.transact(cx, |this, cx| {
11585 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11586 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11587 Some(this.selection_replacement_ranges(range_utf16, cx))
11588 } else {
11589 this.marked_text_ranges(cx)
11590 };
11591
11592 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11593 let newest_selection_id = this.selections.newest_anchor().id;
11594 this.selections
11595 .all::<OffsetUtf16>(cx)
11596 .iter()
11597 .zip(ranges_to_replace.iter())
11598 .find_map(|(selection, range)| {
11599 if selection.id == newest_selection_id {
11600 Some(
11601 (range.start.0 as isize - selection.head().0 as isize)
11602 ..(range.end.0 as isize - selection.head().0 as isize),
11603 )
11604 } else {
11605 None
11606 }
11607 })
11608 });
11609
11610 cx.emit(EditorEvent::InputHandled {
11611 utf16_range_to_replace: range_to_replace,
11612 text: text.into(),
11613 });
11614
11615 if let Some(new_selected_ranges) = new_selected_ranges {
11616 this.change_selections(None, cx, |selections| {
11617 selections.select_ranges(new_selected_ranges)
11618 });
11619 this.backspace(&Default::default(), cx);
11620 }
11621
11622 this.handle_input(text, cx);
11623 });
11624
11625 if let Some(transaction) = self.ime_transaction {
11626 self.buffer.update(cx, |buffer, cx| {
11627 buffer.group_until_transaction(transaction, cx);
11628 });
11629 }
11630
11631 self.unmark_text(cx);
11632 }
11633
11634 fn replace_and_mark_text_in_range(
11635 &mut self,
11636 range_utf16: Option<Range<usize>>,
11637 text: &str,
11638 new_selected_range_utf16: Option<Range<usize>>,
11639 cx: &mut ViewContext<Self>,
11640 ) {
11641 if !self.input_enabled {
11642 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11643 return;
11644 }
11645
11646 let transaction = self.transact(cx, |this, cx| {
11647 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11648 let snapshot = this.buffer.read(cx).read(cx);
11649 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11650 for marked_range in &mut marked_ranges {
11651 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11652 marked_range.start.0 += relative_range_utf16.start;
11653 marked_range.start =
11654 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11655 marked_range.end =
11656 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11657 }
11658 }
11659 Some(marked_ranges)
11660 } else if let Some(range_utf16) = range_utf16 {
11661 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11662 Some(this.selection_replacement_ranges(range_utf16, cx))
11663 } else {
11664 None
11665 };
11666
11667 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11668 let newest_selection_id = this.selections.newest_anchor().id;
11669 this.selections
11670 .all::<OffsetUtf16>(cx)
11671 .iter()
11672 .zip(ranges_to_replace.iter())
11673 .find_map(|(selection, range)| {
11674 if selection.id == newest_selection_id {
11675 Some(
11676 (range.start.0 as isize - selection.head().0 as isize)
11677 ..(range.end.0 as isize - selection.head().0 as isize),
11678 )
11679 } else {
11680 None
11681 }
11682 })
11683 });
11684
11685 cx.emit(EditorEvent::InputHandled {
11686 utf16_range_to_replace: range_to_replace,
11687 text: text.into(),
11688 });
11689
11690 if let Some(ranges) = ranges_to_replace {
11691 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11692 }
11693
11694 let marked_ranges = {
11695 let snapshot = this.buffer.read(cx).read(cx);
11696 this.selections
11697 .disjoint_anchors()
11698 .iter()
11699 .map(|selection| {
11700 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11701 })
11702 .collect::<Vec<_>>()
11703 };
11704
11705 if text.is_empty() {
11706 this.unmark_text(cx);
11707 } else {
11708 this.highlight_text::<InputComposition>(
11709 marked_ranges.clone(),
11710 HighlightStyle {
11711 underline: Some(UnderlineStyle {
11712 thickness: px(1.),
11713 color: None,
11714 wavy: false,
11715 }),
11716 ..Default::default()
11717 },
11718 cx,
11719 );
11720 }
11721
11722 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11723 let use_autoclose = this.use_autoclose;
11724 this.set_use_autoclose(false);
11725 this.handle_input(text, cx);
11726 this.set_use_autoclose(use_autoclose);
11727
11728 if let Some(new_selected_range) = new_selected_range_utf16 {
11729 let snapshot = this.buffer.read(cx).read(cx);
11730 let new_selected_ranges = marked_ranges
11731 .into_iter()
11732 .map(|marked_range| {
11733 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11734 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11735 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11736 snapshot.clip_offset_utf16(new_start, Bias::Left)
11737 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11738 })
11739 .collect::<Vec<_>>();
11740
11741 drop(snapshot);
11742 this.change_selections(None, cx, |selections| {
11743 selections.select_ranges(new_selected_ranges)
11744 });
11745 }
11746 });
11747
11748 self.ime_transaction = self.ime_transaction.or(transaction);
11749 if let Some(transaction) = self.ime_transaction {
11750 self.buffer.update(cx, |buffer, cx| {
11751 buffer.group_until_transaction(transaction, cx);
11752 });
11753 }
11754
11755 if self.text_highlights::<InputComposition>(cx).is_none() {
11756 self.ime_transaction.take();
11757 }
11758 }
11759
11760 fn bounds_for_range(
11761 &mut self,
11762 range_utf16: Range<usize>,
11763 element_bounds: gpui::Bounds<Pixels>,
11764 cx: &mut ViewContext<Self>,
11765 ) -> Option<gpui::Bounds<Pixels>> {
11766 let text_layout_details = self.text_layout_details(cx);
11767 let style = &text_layout_details.editor_style;
11768 let font_id = cx.text_system().resolve_font(&style.text.font());
11769 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11770 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11771 let em_width = cx
11772 .text_system()
11773 .typographic_bounds(font_id, font_size, 'm')
11774 .unwrap()
11775 .size
11776 .width;
11777
11778 let snapshot = self.snapshot(cx);
11779 let scroll_position = snapshot.scroll_position();
11780 let scroll_left = scroll_position.x * em_width;
11781
11782 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11783 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11784 + self.gutter_dimensions.width;
11785 let y = line_height * (start.row().as_f32() - scroll_position.y);
11786
11787 Some(Bounds {
11788 origin: element_bounds.origin + point(x, y),
11789 size: size(em_width, line_height),
11790 })
11791 }
11792}
11793
11794trait SelectionExt {
11795 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11796 fn spanned_rows(
11797 &self,
11798 include_end_if_at_line_start: bool,
11799 map: &DisplaySnapshot,
11800 ) -> Range<MultiBufferRow>;
11801}
11802
11803impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11804 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11805 let start = self
11806 .start
11807 .to_point(&map.buffer_snapshot)
11808 .to_display_point(map);
11809 let end = self
11810 .end
11811 .to_point(&map.buffer_snapshot)
11812 .to_display_point(map);
11813 if self.reversed {
11814 end..start
11815 } else {
11816 start..end
11817 }
11818 }
11819
11820 fn spanned_rows(
11821 &self,
11822 include_end_if_at_line_start: bool,
11823 map: &DisplaySnapshot,
11824 ) -> Range<MultiBufferRow> {
11825 let start = self.start.to_point(&map.buffer_snapshot);
11826 let mut end = self.end.to_point(&map.buffer_snapshot);
11827 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11828 end.row -= 1;
11829 }
11830
11831 let buffer_start = map.prev_line_boundary(start).0;
11832 let buffer_end = map.next_line_boundary(end).0;
11833 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11834 }
11835}
11836
11837impl<T: InvalidationRegion> InvalidationStack<T> {
11838 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11839 where
11840 S: Clone + ToOffset,
11841 {
11842 while let Some(region) = self.last() {
11843 let all_selections_inside_invalidation_ranges =
11844 if selections.len() == region.ranges().len() {
11845 selections
11846 .iter()
11847 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11848 .all(|(selection, invalidation_range)| {
11849 let head = selection.head().to_offset(buffer);
11850 invalidation_range.start <= head && invalidation_range.end >= head
11851 })
11852 } else {
11853 false
11854 };
11855
11856 if all_selections_inside_invalidation_ranges {
11857 break;
11858 } else {
11859 self.pop();
11860 }
11861 }
11862 }
11863}
11864
11865impl<T> Default for InvalidationStack<T> {
11866 fn default() -> Self {
11867 Self(Default::default())
11868 }
11869}
11870
11871impl<T> Deref for InvalidationStack<T> {
11872 type Target = Vec<T>;
11873
11874 fn deref(&self) -> &Self::Target {
11875 &self.0
11876 }
11877}
11878
11879impl<T> DerefMut for InvalidationStack<T> {
11880 fn deref_mut(&mut self) -> &mut Self::Target {
11881 &mut self.0
11882 }
11883}
11884
11885impl InvalidationRegion for SnippetState {
11886 fn ranges(&self) -> &[Range<Anchor>] {
11887 &self.ranges[self.active_index]
11888 }
11889}
11890
11891pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11892 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11893
11894 Box::new(move |cx: &mut BlockContext| {
11895 let group_id: SharedString = cx.block_id.to_string().into();
11896
11897 let mut text_style = cx.text_style().clone();
11898 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11899 let theme_settings = ThemeSettings::get_global(cx);
11900 text_style.font_family = theme_settings.buffer_font.family.clone();
11901 text_style.font_style = theme_settings.buffer_font.style;
11902 text_style.font_features = theme_settings.buffer_font.features.clone();
11903 text_style.font_weight = theme_settings.buffer_font.weight;
11904
11905 let multi_line_diagnostic = diagnostic.message.contains('\n');
11906
11907 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11908 if multi_line_diagnostic {
11909 v_flex()
11910 } else {
11911 h_flex()
11912 }
11913 .children(diagnostic.is_primary.then(|| {
11914 IconButton::new(("close-block", block_id), IconName::XCircle)
11915 .icon_color(Color::Muted)
11916 .size(ButtonSize::Compact)
11917 .style(ButtonStyle::Transparent)
11918 .visible_on_hover(group_id.clone())
11919 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11920 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11921 }))
11922 .child(
11923 IconButton::new(("copy-block", block_id), IconName::Copy)
11924 .icon_color(Color::Muted)
11925 .size(ButtonSize::Compact)
11926 .style(ButtonStyle::Transparent)
11927 .visible_on_hover(group_id.clone())
11928 .on_click({
11929 let message = diagnostic.message.clone();
11930 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11931 })
11932 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11933 )
11934 };
11935
11936 let icon_size = buttons(&diagnostic, cx.block_id)
11937 .into_any_element()
11938 .layout_as_root(AvailableSpace::min_size(), cx);
11939
11940 h_flex()
11941 .id(cx.block_id)
11942 .group(group_id.clone())
11943 .relative()
11944 .size_full()
11945 .pl(cx.gutter_dimensions.width)
11946 .w(cx.max_width + cx.gutter_dimensions.width)
11947 .child(
11948 div()
11949 .flex()
11950 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11951 .flex_shrink(),
11952 )
11953 .child(buttons(&diagnostic, cx.block_id))
11954 .child(div().flex().flex_shrink_0().child(
11955 StyledText::new(text_without_backticks.clone()).with_highlights(
11956 &text_style,
11957 code_ranges.iter().map(|range| {
11958 (
11959 range.clone(),
11960 HighlightStyle {
11961 font_weight: Some(FontWeight::BOLD),
11962 ..Default::default()
11963 },
11964 )
11965 }),
11966 ),
11967 ))
11968 .into_any_element()
11969 })
11970}
11971
11972pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11973 let mut text_without_backticks = String::new();
11974 let mut code_ranges = Vec::new();
11975
11976 if let Some(source) = &diagnostic.source {
11977 text_without_backticks.push_str(&source);
11978 code_ranges.push(0..source.len());
11979 text_without_backticks.push_str(": ");
11980 }
11981
11982 let mut prev_offset = 0;
11983 let mut in_code_block = false;
11984 for (ix, _) in diagnostic
11985 .message
11986 .match_indices('`')
11987 .chain([(diagnostic.message.len(), "")])
11988 {
11989 let prev_len = text_without_backticks.len();
11990 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11991 prev_offset = ix + 1;
11992 if in_code_block {
11993 code_ranges.push(prev_len..text_without_backticks.len());
11994 in_code_block = false;
11995 } else {
11996 in_code_block = true;
11997 }
11998 }
11999
12000 (text_without_backticks.into(), code_ranges)
12001}
12002
12003fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
12004 match (severity, valid) {
12005 (DiagnosticSeverity::ERROR, true) => colors.error,
12006 (DiagnosticSeverity::ERROR, false) => colors.error,
12007 (DiagnosticSeverity::WARNING, true) => colors.warning,
12008 (DiagnosticSeverity::WARNING, false) => colors.warning,
12009 (DiagnosticSeverity::INFORMATION, true) => colors.info,
12010 (DiagnosticSeverity::INFORMATION, false) => colors.info,
12011 (DiagnosticSeverity::HINT, true) => colors.info,
12012 (DiagnosticSeverity::HINT, false) => colors.info,
12013 _ => colors.ignored,
12014 }
12015}
12016
12017pub fn styled_runs_for_code_label<'a>(
12018 label: &'a CodeLabel,
12019 syntax_theme: &'a theme::SyntaxTheme,
12020) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12021 let fade_out = HighlightStyle {
12022 fade_out: Some(0.35),
12023 ..Default::default()
12024 };
12025
12026 let mut prev_end = label.filter_range.end;
12027 label
12028 .runs
12029 .iter()
12030 .enumerate()
12031 .flat_map(move |(ix, (range, highlight_id))| {
12032 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12033 style
12034 } else {
12035 return Default::default();
12036 };
12037 let mut muted_style = style;
12038 muted_style.highlight(fade_out);
12039
12040 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12041 if range.start >= label.filter_range.end {
12042 if range.start > prev_end {
12043 runs.push((prev_end..range.start, fade_out));
12044 }
12045 runs.push((range.clone(), muted_style));
12046 } else if range.end <= label.filter_range.end {
12047 runs.push((range.clone(), style));
12048 } else {
12049 runs.push((range.start..label.filter_range.end, style));
12050 runs.push((label.filter_range.end..range.end, muted_style));
12051 }
12052 prev_end = cmp::max(prev_end, range.end);
12053
12054 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12055 runs.push((prev_end..label.text.len(), fade_out));
12056 }
12057
12058 runs
12059 })
12060}
12061
12062pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12063 let mut prev_index = 0;
12064 let mut prev_codepoint: Option<char> = None;
12065 text.char_indices()
12066 .chain([(text.len(), '\0')])
12067 .filter_map(move |(index, codepoint)| {
12068 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12069 let is_boundary = index == text.len()
12070 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12071 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12072 if is_boundary {
12073 let chunk = &text[prev_index..index];
12074 prev_index = index;
12075 Some(chunk)
12076 } else {
12077 None
12078 }
12079 })
12080}
12081
12082trait RangeToAnchorExt {
12083 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12084}
12085
12086impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12087 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12088 let start_offset = self.start.to_offset(snapshot);
12089 let end_offset = self.end.to_offset(snapshot);
12090 if start_offset == end_offset {
12091 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12092 } else {
12093 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12094 }
12095 }
12096}
12097
12098pub trait RowExt {
12099 fn as_f32(&self) -> f32;
12100
12101 fn next_row(&self) -> Self;
12102
12103 fn previous_row(&self) -> Self;
12104
12105 fn minus(&self, other: Self) -> u32;
12106}
12107
12108impl RowExt for DisplayRow {
12109 fn as_f32(&self) -> f32 {
12110 self.0 as f32
12111 }
12112
12113 fn next_row(&self) -> Self {
12114 Self(self.0 + 1)
12115 }
12116
12117 fn previous_row(&self) -> Self {
12118 Self(self.0.saturating_sub(1))
12119 }
12120
12121 fn minus(&self, other: Self) -> u32 {
12122 self.0 - other.0
12123 }
12124}
12125
12126impl RowExt for MultiBufferRow {
12127 fn as_f32(&self) -> f32 {
12128 self.0 as f32
12129 }
12130
12131 fn next_row(&self) -> Self {
12132 Self(self.0 + 1)
12133 }
12134
12135 fn previous_row(&self) -> Self {
12136 Self(self.0.saturating_sub(1))
12137 }
12138
12139 fn minus(&self, other: Self) -> u32 {
12140 self.0 - other.0
12141 }
12142}
12143
12144trait RowRangeExt {
12145 type Row;
12146
12147 fn len(&self) -> usize;
12148
12149 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12150}
12151
12152impl RowRangeExt for Range<MultiBufferRow> {
12153 type Row = MultiBufferRow;
12154
12155 fn len(&self) -> usize {
12156 (self.end.0 - self.start.0) as usize
12157 }
12158
12159 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12160 (self.start.0..self.end.0).map(MultiBufferRow)
12161 }
12162}
12163
12164impl RowRangeExt for Range<DisplayRow> {
12165 type Row = DisplayRow;
12166
12167 fn len(&self) -> usize {
12168 (self.end.0 - self.start.0) as usize
12169 }
12170
12171 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12172 (self.start.0..self.end.0).map(DisplayRow)
12173 }
12174}
12175
12176fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12177 if hunk.diff_base_byte_range.is_empty() {
12178 DiffHunkStatus::Added
12179 } else if hunk.associated_range.is_empty() {
12180 DiffHunkStatus::Removed
12181 } else {
12182 DiffHunkStatus::Modified
12183 }
12184}