1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18pub mod display_map;
19mod editor_settings;
20mod element;
21mod hunk_diff;
22mod inlay_hint_cache;
23
24mod debounced_delay;
25mod git;
26mod highlight_matching_bracket;
27mod hover_links;
28mod hover_popover;
29mod inline_completion_provider;
30pub mod items;
31mod mouse_context_menu;
32pub mod movement;
33mod persistence;
34mod rust_analyzer_ext;
35pub mod scroll;
36mod selections_collection;
37pub mod tasks;
38
39#[cfg(test)]
40mod editor_tests;
41#[cfg(any(test, feature = "test-support"))]
42pub mod test;
43use ::git::diff::{DiffHunk, DiffHunkStatus};
44use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
45pub(crate) use actions::*;
46use aho_corasick::AhoCorasick;
47use anyhow::{anyhow, Context as _, Result};
48use blink_manager::BlinkManager;
49use client::{Collaborator, ParticipantIndex};
50use clock::ReplicaId;
51use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
52use convert_case::{Case, Casing};
53use debounced_delay::DebouncedDelay;
54pub use display_map::DisplayPoint;
55use display_map::*;
56pub use editor_settings::EditorSettings;
57use element::LineWithInvisibles;
58pub use element::{
59 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
60};
61use futures::FutureExt;
62use fuzzy::{StringMatch, StringMatchCandidate};
63use git::blame::GitBlame;
64use git::diff_hunk_to_display;
65use gpui::{
66 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
67 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
68 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
69 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
70 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
71 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
72 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
73};
74use highlight_matching_bracket::refresh_matching_bracket_highlights;
75use hover_popover::{hide_hover, HoverState};
76use hunk_diff::ExpandedHunks;
77pub(crate) use hunk_diff::HunkToExpand;
78use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
79pub use inline_completion_provider::*;
80pub use items::MAX_TAB_TITLE_LEN;
81use itertools::Itertools;
82use language::Runnable;
83use language::{
84 char_kind,
85 language_settings::{self, all_language_settings, InlayHintSettings},
86 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
87 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
88 Point, Selection, SelectionGoal, TransactionId,
89};
90use task::{ResolvedTask, TaskTemplate};
91
92use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
93use lsp::{DiagnosticSeverity, LanguageServerId};
94use mouse_context_menu::MouseContextMenu;
95use movement::TextLayoutDetails;
96use multi_buffer::ToOffsetUtf16;
97pub use multi_buffer::{
98 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
99 ToPoint,
100};
101use ordered_float::OrderedFloat;
102use parking_lot::{Mutex, RwLock};
103use project::project_settings::{GitGutterSetting, ProjectSettings};
104use project::{
105 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
106 ProjectTransaction, TaskSourceKind, WorktreeId,
107};
108use rand::prelude::*;
109use rpc::{proto::*, ErrorExt};
110use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
111use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
112use serde::{Deserialize, Serialize};
113use settings::{Settings, SettingsStore};
114use smallvec::SmallVec;
115use snippet::Snippet;
116use std::ops::Not as _;
117use std::{
118 any::TypeId,
119 borrow::Cow,
120 cmp::{self, Ordering, Reverse},
121 mem,
122 num::NonZeroU32,
123 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
124 path::Path,
125 sync::Arc,
126 time::{Duration, Instant},
127};
128pub use sum_tree::Bias;
129use sum_tree::TreeMap;
130use text::{BufferId, OffsetUtf16, Rope};
131use theme::{
132 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
133 ThemeColors, ThemeSettings,
134};
135use ui::{
136 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
137 Tooltip,
138};
139use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
140use workspace::item::{ItemHandle, PreviewTabsSettings};
141use workspace::notifications::{DetachAndPromptErr, NotificationId};
142use workspace::{
143 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
144};
145use workspace::{OpenInTerminal, OpenTerminal, Toast};
146
147use crate::hover_links::find_url;
148
149pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
150const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
151const MAX_LINE_LEN: usize = 1024;
152const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
153const MAX_SELECTION_HISTORY_LEN: usize = 1024;
154pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
155#[doc(hidden)]
156pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
157#[doc(hidden)]
158pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
159
160pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
161
162pub fn render_parsed_markdown(
163 element_id: impl Into<ElementId>,
164 parsed: &language::ParsedMarkdown,
165 editor_style: &EditorStyle,
166 workspace: Option<WeakView<Workspace>>,
167 cx: &mut WindowContext,
168) -> InteractiveText {
169 let code_span_background_color = cx
170 .theme()
171 .colors()
172 .editor_document_highlight_read_background;
173
174 let highlights = gpui::combine_highlights(
175 parsed.highlights.iter().filter_map(|(range, highlight)| {
176 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
177 Some((range.clone(), highlight))
178 }),
179 parsed
180 .regions
181 .iter()
182 .zip(&parsed.region_ranges)
183 .filter_map(|(region, range)| {
184 if region.code {
185 Some((
186 range.clone(),
187 HighlightStyle {
188 background_color: Some(code_span_background_color),
189 ..Default::default()
190 },
191 ))
192 } else {
193 None
194 }
195 }),
196 );
197
198 let mut links = Vec::new();
199 let mut link_ranges = Vec::new();
200 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
201 if let Some(link) = region.link.clone() {
202 links.push(link);
203 link_ranges.push(range.clone());
204 }
205 }
206
207 InteractiveText::new(
208 element_id,
209 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
210 )
211 .on_click(link_ranges, move |clicked_range_ix, cx| {
212 match &links[clicked_range_ix] {
213 markdown::Link::Web { url } => cx.open_url(url),
214 markdown::Link::Path { path } => {
215 if let Some(workspace) = &workspace {
216 _ = workspace.update(cx, |workspace, cx| {
217 workspace.open_abs_path(path.clone(), false, cx).detach();
218 });
219 }
220 }
221 }
222 })
223}
224
225#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
226pub(crate) enum InlayId {
227 Suggestion(usize),
228 Hint(usize),
229}
230
231impl InlayId {
232 fn id(&self) -> usize {
233 match self {
234 Self::Suggestion(id) => *id,
235 Self::Hint(id) => *id,
236 }
237 }
238}
239
240enum DiffRowHighlight {}
241enum DocumentHighlightRead {}
242enum DocumentHighlightWrite {}
243enum InputComposition {}
244
245#[derive(Copy, Clone, PartialEq, Eq)]
246pub enum Direction {
247 Prev,
248 Next,
249}
250
251pub fn init_settings(cx: &mut AppContext) {
252 EditorSettings::register(cx);
253}
254
255pub fn init(cx: &mut AppContext) {
256 init_settings(cx);
257
258 workspace::register_project_item::<Editor>(cx);
259 workspace::register_followable_item::<Editor>(cx);
260 workspace::register_deserializable_item::<Editor>(cx);
261 cx.observe_new_views(
262 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
263 workspace.register_action(Editor::new_file);
264 workspace.register_action(Editor::new_file_in_direction);
265 },
266 )
267 .detach();
268
269 cx.on_action(move |_: &workspace::NewFile, cx| {
270 let app_state = workspace::AppState::global(cx);
271 if let Some(app_state) = app_state.upgrade() {
272 workspace::open_new(app_state, cx, |workspace, cx| {
273 Editor::new_file(workspace, &Default::default(), cx)
274 })
275 .detach();
276 }
277 });
278 cx.on_action(move |_: &workspace::NewWindow, cx| {
279 let app_state = workspace::AppState::global(cx);
280 if let Some(app_state) = app_state.upgrade() {
281 workspace::open_new(app_state, cx, |workspace, cx| {
282 Editor::new_file(workspace, &Default::default(), cx)
283 })
284 .detach();
285 }
286 });
287}
288
289pub struct SearchWithinRange;
290
291trait InvalidationRegion {
292 fn ranges(&self) -> &[Range<Anchor>];
293}
294
295#[derive(Clone, Debug, PartialEq)]
296pub enum SelectPhase {
297 Begin {
298 position: DisplayPoint,
299 add: bool,
300 click_count: usize,
301 },
302 BeginColumnar {
303 position: DisplayPoint,
304 goal_column: u32,
305 },
306 Extend {
307 position: DisplayPoint,
308 click_count: usize,
309 },
310 Update {
311 position: DisplayPoint,
312 goal_column: u32,
313 scroll_delta: gpui::Point<f32>,
314 },
315 End,
316}
317
318#[derive(Clone, Debug)]
319pub enum SelectMode {
320 Character,
321 Word(Range<Anchor>),
322 Line(Range<Anchor>),
323 All,
324}
325
326#[derive(Copy, Clone, PartialEq, Eq, Debug)]
327pub enum EditorMode {
328 SingleLine,
329 AutoHeight { max_lines: usize },
330 Full,
331}
332
333#[derive(Clone, Debug)]
334pub enum SoftWrap {
335 None,
336 PreferLine,
337 EditorWidth,
338 Column(u32),
339}
340
341#[derive(Clone)]
342pub struct EditorStyle {
343 pub background: Hsla,
344 pub local_player: PlayerColor,
345 pub text: TextStyle,
346 pub scrollbar_width: Pixels,
347 pub syntax: Arc<SyntaxTheme>,
348 pub status: StatusColors,
349 pub inlay_hints_style: HighlightStyle,
350 pub suggestions_style: HighlightStyle,
351}
352
353impl Default for EditorStyle {
354 fn default() -> Self {
355 Self {
356 background: Hsla::default(),
357 local_player: PlayerColor::default(),
358 text: TextStyle::default(),
359 scrollbar_width: Pixels::default(),
360 syntax: Default::default(),
361 // HACK: Status colors don't have a real default.
362 // We should look into removing the status colors from the editor
363 // style and retrieve them directly from the theme.
364 status: StatusColors::dark(),
365 inlay_hints_style: HighlightStyle::default(),
366 suggestions_style: HighlightStyle::default(),
367 }
368 }
369}
370
371type CompletionId = usize;
372
373// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
374// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
375
376type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
377
378struct ScrollbarMarkerState {
379 scrollbar_size: Size<Pixels>,
380 dirty: bool,
381 markers: Arc<[PaintQuad]>,
382 pending_refresh: Option<Task<Result<()>>>,
383}
384
385impl ScrollbarMarkerState {
386 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
387 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
388 }
389}
390
391impl Default for ScrollbarMarkerState {
392 fn default() -> Self {
393 Self {
394 scrollbar_size: Size::default(),
395 dirty: false,
396 markers: Arc::from([]),
397 pending_refresh: None,
398 }
399 }
400}
401
402#[derive(Clone, Debug)]
403struct RunnableTasks {
404 templates: Vec<(TaskSourceKind, TaskTemplate)>,
405 // We need the column at which the task context evaluation should take place.
406 column: u32,
407}
408
409#[derive(Clone)]
410struct ResolvedTasks {
411 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
412 position: text::Point,
413}
414
415/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
416///
417/// See the [module level documentation](self) for more information.
418pub struct Editor {
419 focus_handle: FocusHandle,
420 /// The text buffer being edited
421 buffer: Model<MultiBuffer>,
422 /// Map of how text in the buffer should be displayed.
423 /// Handles soft wraps, folds, fake inlay text insertions, etc.
424 pub display_map: Model<DisplayMap>,
425 pub selections: SelectionsCollection,
426 pub scroll_manager: ScrollManager,
427 columnar_selection_tail: Option<Anchor>,
428 add_selections_state: Option<AddSelectionsState>,
429 select_next_state: Option<SelectNextState>,
430 select_prev_state: Option<SelectNextState>,
431 selection_history: SelectionHistory,
432 autoclose_regions: Vec<AutocloseRegion>,
433 snippet_stack: InvalidationStack<SnippetState>,
434 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
435 ime_transaction: Option<TransactionId>,
436 active_diagnostics: Option<ActiveDiagnosticGroup>,
437 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
438 project: Option<Model<Project>>,
439 completion_provider: Option<Box<dyn CompletionProvider>>,
440 collaboration_hub: Option<Box<dyn CollaborationHub>>,
441 blink_manager: Model<BlinkManager>,
442 show_cursor_names: bool,
443 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
444 pub show_local_selections: bool,
445 mode: EditorMode,
446 show_breadcrumbs: bool,
447 show_gutter: bool,
448 show_wrap_guides: Option<bool>,
449 placeholder_text: Option<Arc<str>>,
450 highlight_order: usize,
451 highlighted_rows: HashMap<TypeId, Vec<(usize, Range<Anchor>, Hsla)>>,
452 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
453 scrollbar_marker_state: ScrollbarMarkerState,
454 nav_history: Option<ItemNavHistory>,
455 context_menu: RwLock<Option<ContextMenu>>,
456 mouse_context_menu: Option<MouseContextMenu>,
457 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
458 find_all_references_task_sources: Vec<Anchor>,
459 next_completion_id: CompletionId,
460 completion_documentation_pre_resolve_debounce: DebouncedDelay,
461 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
462 code_actions_task: Option<Task<()>>,
463 document_highlights_task: Option<Task<()>>,
464 pending_rename: Option<RenameState>,
465 searchable: bool,
466 cursor_shape: CursorShape,
467 collapse_matches: bool,
468 autoindent_mode: Option<AutoindentMode>,
469 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
470 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
471 input_enabled: bool,
472 use_modal_editing: bool,
473 read_only: bool,
474 leader_peer_id: Option<PeerId>,
475 remote_id: Option<ViewId>,
476 hover_state: HoverState,
477 gutter_hovered: bool,
478 hovered_link_state: Option<HoveredLinkState>,
479 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
480 active_inline_completion: Option<Inlay>,
481 show_inline_completions: bool,
482 inlay_hint_cache: InlayHintCache,
483 expanded_hunks: ExpandedHunks,
484 next_inlay_id: usize,
485 _subscriptions: Vec<Subscription>,
486 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
487 gutter_dimensions: GutterDimensions,
488 pub vim_replace_map: HashMap<Range<usize>, String>,
489 style: Option<EditorStyle>,
490 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
491 use_autoclose: bool,
492 auto_replace_emoji_shortcode: bool,
493 show_git_blame_gutter: bool,
494 show_git_blame_inline: bool,
495 show_git_blame_inline_delay_task: Option<Task<()>>,
496 git_blame_inline_enabled: bool,
497 blame: Option<Model<GitBlame>>,
498 blame_subscription: Option<Subscription>,
499 custom_context_menu: Option<
500 Box<
501 dyn 'static
502 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
503 >,
504 >,
505 last_bounds: Option<Bounds<Pixels>>,
506 expect_bounds_change: Option<Bounds<Pixels>>,
507 tasks: HashMap<u32, RunnableTasks>,
508 tasks_update_task: Option<Task<()>>,
509}
510
511#[derive(Clone)]
512pub struct EditorSnapshot {
513 pub mode: EditorMode,
514 show_gutter: bool,
515 render_git_blame_gutter: bool,
516 pub display_snapshot: DisplaySnapshot,
517 pub placeholder_text: Option<Arc<str>>,
518 is_focused: bool,
519 scroll_anchor: ScrollAnchor,
520 ongoing_scroll: OngoingScroll,
521}
522
523const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
524
525#[derive(Debug, Clone, Copy)]
526pub struct GutterDimensions {
527 pub left_padding: Pixels,
528 pub right_padding: Pixels,
529 pub width: Pixels,
530 pub margin: Pixels,
531 pub git_blame_entries_width: Option<Pixels>,
532}
533
534impl Default for GutterDimensions {
535 fn default() -> Self {
536 Self {
537 left_padding: Pixels::ZERO,
538 right_padding: Pixels::ZERO,
539 width: Pixels::ZERO,
540 margin: Pixels::ZERO,
541 git_blame_entries_width: None,
542 }
543 }
544}
545
546#[derive(Debug)]
547pub struct RemoteSelection {
548 pub replica_id: ReplicaId,
549 pub selection: Selection<Anchor>,
550 pub cursor_shape: CursorShape,
551 pub peer_id: PeerId,
552 pub line_mode: bool,
553 pub participant_index: Option<ParticipantIndex>,
554 pub user_name: Option<SharedString>,
555}
556
557#[derive(Clone, Debug)]
558struct SelectionHistoryEntry {
559 selections: Arc<[Selection<Anchor>]>,
560 select_next_state: Option<SelectNextState>,
561 select_prev_state: Option<SelectNextState>,
562 add_selections_state: Option<AddSelectionsState>,
563}
564
565enum SelectionHistoryMode {
566 Normal,
567 Undoing,
568 Redoing,
569}
570
571#[derive(Clone, PartialEq, Eq, Hash)]
572struct HoveredCursor {
573 replica_id: u16,
574 selection_id: usize,
575}
576
577impl Default for SelectionHistoryMode {
578 fn default() -> Self {
579 Self::Normal
580 }
581}
582
583#[derive(Default)]
584struct SelectionHistory {
585 #[allow(clippy::type_complexity)]
586 selections_by_transaction:
587 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
588 mode: SelectionHistoryMode,
589 undo_stack: VecDeque<SelectionHistoryEntry>,
590 redo_stack: VecDeque<SelectionHistoryEntry>,
591}
592
593impl SelectionHistory {
594 fn insert_transaction(
595 &mut self,
596 transaction_id: TransactionId,
597 selections: Arc<[Selection<Anchor>]>,
598 ) {
599 self.selections_by_transaction
600 .insert(transaction_id, (selections, None));
601 }
602
603 #[allow(clippy::type_complexity)]
604 fn transaction(
605 &self,
606 transaction_id: TransactionId,
607 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
608 self.selections_by_transaction.get(&transaction_id)
609 }
610
611 #[allow(clippy::type_complexity)]
612 fn transaction_mut(
613 &mut self,
614 transaction_id: TransactionId,
615 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
616 self.selections_by_transaction.get_mut(&transaction_id)
617 }
618
619 fn push(&mut self, entry: SelectionHistoryEntry) {
620 if !entry.selections.is_empty() {
621 match self.mode {
622 SelectionHistoryMode::Normal => {
623 self.push_undo(entry);
624 self.redo_stack.clear();
625 }
626 SelectionHistoryMode::Undoing => self.push_redo(entry),
627 SelectionHistoryMode::Redoing => self.push_undo(entry),
628 }
629 }
630 }
631
632 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
633 if self
634 .undo_stack
635 .back()
636 .map_or(true, |e| e.selections != entry.selections)
637 {
638 self.undo_stack.push_back(entry);
639 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
640 self.undo_stack.pop_front();
641 }
642 }
643 }
644
645 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
646 if self
647 .redo_stack
648 .back()
649 .map_or(true, |e| e.selections != entry.selections)
650 {
651 self.redo_stack.push_back(entry);
652 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
653 self.redo_stack.pop_front();
654 }
655 }
656 }
657}
658
659#[derive(Clone, Debug)]
660struct AddSelectionsState {
661 above: bool,
662 stack: Vec<usize>,
663}
664
665#[derive(Clone)]
666struct SelectNextState {
667 query: AhoCorasick,
668 wordwise: bool,
669 done: bool,
670}
671
672impl std::fmt::Debug for SelectNextState {
673 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
674 f.debug_struct(std::any::type_name::<Self>())
675 .field("wordwise", &self.wordwise)
676 .field("done", &self.done)
677 .finish()
678 }
679}
680
681#[derive(Debug)]
682struct AutocloseRegion {
683 selection_id: usize,
684 range: Range<Anchor>,
685 pair: BracketPair,
686}
687
688#[derive(Debug)]
689struct SnippetState {
690 ranges: Vec<Vec<Range<Anchor>>>,
691 active_index: usize,
692}
693
694#[doc(hidden)]
695pub struct RenameState {
696 pub range: Range<Anchor>,
697 pub old_name: Arc<str>,
698 pub editor: View<Editor>,
699 block_id: BlockId,
700}
701
702struct InvalidationStack<T>(Vec<T>);
703
704struct RegisteredInlineCompletionProvider {
705 provider: Arc<dyn InlineCompletionProviderHandle>,
706 _subscription: Subscription,
707}
708
709enum ContextMenu {
710 Completions(CompletionsMenu),
711 CodeActions(CodeActionsMenu),
712}
713
714impl ContextMenu {
715 fn select_first(
716 &mut self,
717 project: Option<&Model<Project>>,
718 cx: &mut ViewContext<Editor>,
719 ) -> bool {
720 if self.visible() {
721 match self {
722 ContextMenu::Completions(menu) => menu.select_first(project, cx),
723 ContextMenu::CodeActions(menu) => menu.select_first(cx),
724 }
725 true
726 } else {
727 false
728 }
729 }
730
731 fn select_prev(
732 &mut self,
733 project: Option<&Model<Project>>,
734 cx: &mut ViewContext<Editor>,
735 ) -> bool {
736 if self.visible() {
737 match self {
738 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
739 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
740 }
741 true
742 } else {
743 false
744 }
745 }
746
747 fn select_next(
748 &mut self,
749 project: Option<&Model<Project>>,
750 cx: &mut ViewContext<Editor>,
751 ) -> bool {
752 if self.visible() {
753 match self {
754 ContextMenu::Completions(menu) => menu.select_next(project, cx),
755 ContextMenu::CodeActions(menu) => menu.select_next(cx),
756 }
757 true
758 } else {
759 false
760 }
761 }
762
763 fn select_last(
764 &mut self,
765 project: Option<&Model<Project>>,
766 cx: &mut ViewContext<Editor>,
767 ) -> bool {
768 if self.visible() {
769 match self {
770 ContextMenu::Completions(menu) => menu.select_last(project, cx),
771 ContextMenu::CodeActions(menu) => menu.select_last(cx),
772 }
773 true
774 } else {
775 false
776 }
777 }
778
779 fn visible(&self) -> bool {
780 match self {
781 ContextMenu::Completions(menu) => menu.visible(),
782 ContextMenu::CodeActions(menu) => menu.visible(),
783 }
784 }
785
786 fn render(
787 &self,
788 cursor_position: DisplayPoint,
789 style: &EditorStyle,
790 max_height: Pixels,
791 workspace: Option<WeakView<Workspace>>,
792 cx: &mut ViewContext<Editor>,
793 ) -> (ContextMenuOrigin, AnyElement) {
794 match self {
795 ContextMenu::Completions(menu) => (
796 ContextMenuOrigin::EditorPoint(cursor_position),
797 menu.render(style, max_height, workspace, cx),
798 ),
799 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
800 }
801 }
802}
803
804enum ContextMenuOrigin {
805 EditorPoint(DisplayPoint),
806 GutterIndicator(u32),
807}
808
809#[derive(Clone)]
810struct CompletionsMenu {
811 id: CompletionId,
812 initial_position: Anchor,
813 buffer: Model<Buffer>,
814 completions: Arc<RwLock<Box<[Completion]>>>,
815 match_candidates: Arc<[StringMatchCandidate]>,
816 matches: Arc<[StringMatch]>,
817 selected_item: usize,
818 scroll_handle: UniformListScrollHandle,
819 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
820}
821
822impl CompletionsMenu {
823 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
824 self.selected_item = 0;
825 self.scroll_handle.scroll_to_item(self.selected_item);
826 self.attempt_resolve_selected_completion_documentation(project, cx);
827 cx.notify();
828 }
829
830 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
831 if self.selected_item > 0 {
832 self.selected_item -= 1;
833 } else {
834 self.selected_item = self.matches.len() - 1;
835 }
836 self.scroll_handle.scroll_to_item(self.selected_item);
837 self.attempt_resolve_selected_completion_documentation(project, cx);
838 cx.notify();
839 }
840
841 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
842 if self.selected_item + 1 < self.matches.len() {
843 self.selected_item += 1;
844 } else {
845 self.selected_item = 0;
846 }
847 self.scroll_handle.scroll_to_item(self.selected_item);
848 self.attempt_resolve_selected_completion_documentation(project, cx);
849 cx.notify();
850 }
851
852 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
853 self.selected_item = self.matches.len() - 1;
854 self.scroll_handle.scroll_to_item(self.selected_item);
855 self.attempt_resolve_selected_completion_documentation(project, cx);
856 cx.notify();
857 }
858
859 fn pre_resolve_completion_documentation(
860 buffer: Model<Buffer>,
861 completions: Arc<RwLock<Box<[Completion]>>>,
862 matches: Arc<[StringMatch]>,
863 editor: &Editor,
864 cx: &mut ViewContext<Editor>,
865 ) -> Task<()> {
866 let settings = EditorSettings::get_global(cx);
867 if !settings.show_completion_documentation {
868 return Task::ready(());
869 }
870
871 let Some(provider) = editor.completion_provider.as_ref() else {
872 return Task::ready(());
873 };
874
875 let resolve_task = provider.resolve_completions(
876 buffer,
877 matches.iter().map(|m| m.candidate_id).collect(),
878 completions.clone(),
879 cx,
880 );
881
882 return cx.spawn(move |this, mut cx| async move {
883 if let Some(true) = resolve_task.await.log_err() {
884 this.update(&mut cx, |_, cx| cx.notify()).ok();
885 }
886 });
887 }
888
889 fn attempt_resolve_selected_completion_documentation(
890 &mut self,
891 project: Option<&Model<Project>>,
892 cx: &mut ViewContext<Editor>,
893 ) {
894 let settings = EditorSettings::get_global(cx);
895 if !settings.show_completion_documentation {
896 return;
897 }
898
899 let completion_index = self.matches[self.selected_item].candidate_id;
900 let Some(project) = project else {
901 return;
902 };
903
904 let resolve_task = project.update(cx, |project, cx| {
905 project.resolve_completions(
906 self.buffer.clone(),
907 vec![completion_index],
908 self.completions.clone(),
909 cx,
910 )
911 });
912
913 let delay_ms =
914 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
915 let delay = Duration::from_millis(delay_ms);
916
917 self.selected_completion_documentation_resolve_debounce
918 .lock()
919 .fire_new(delay, cx, |_, cx| {
920 cx.spawn(move |this, mut cx| async move {
921 if let Some(true) = resolve_task.await.log_err() {
922 this.update(&mut cx, |_, cx| cx.notify()).ok();
923 }
924 })
925 });
926 }
927
928 fn visible(&self) -> bool {
929 !self.matches.is_empty()
930 }
931
932 fn render(
933 &self,
934 style: &EditorStyle,
935 max_height: Pixels,
936 workspace: Option<WeakView<Workspace>>,
937 cx: &mut ViewContext<Editor>,
938 ) -> AnyElement {
939 let settings = EditorSettings::get_global(cx);
940 let show_completion_documentation = settings.show_completion_documentation;
941
942 let widest_completion_ix = self
943 .matches
944 .iter()
945 .enumerate()
946 .max_by_key(|(_, mat)| {
947 let completions = self.completions.read();
948 let completion = &completions[mat.candidate_id];
949 let documentation = &completion.documentation;
950
951 let mut len = completion.label.text.chars().count();
952 if let Some(Documentation::SingleLine(text)) = documentation {
953 if show_completion_documentation {
954 len += text.chars().count();
955 }
956 }
957
958 len
959 })
960 .map(|(ix, _)| ix);
961
962 let completions = self.completions.clone();
963 let matches = self.matches.clone();
964 let selected_item = self.selected_item;
965 let style = style.clone();
966
967 let multiline_docs = if show_completion_documentation {
968 let mat = &self.matches[selected_item];
969 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
970 Some(Documentation::MultiLinePlainText(text)) => {
971 Some(div().child(SharedString::from(text.clone())))
972 }
973 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
974 Some(div().child(render_parsed_markdown(
975 "completions_markdown",
976 parsed,
977 &style,
978 workspace,
979 cx,
980 )))
981 }
982 _ => None,
983 };
984 multiline_docs.map(|div| {
985 div.id("multiline_docs")
986 .max_h(max_height)
987 .flex_1()
988 .px_1p5()
989 .py_1()
990 .min_w(px(260.))
991 .max_w(px(640.))
992 .w(px(500.))
993 .overflow_y_scroll()
994 .occlude()
995 })
996 } else {
997 None
998 };
999
1000 let list = uniform_list(
1001 cx.view().clone(),
1002 "completions",
1003 matches.len(),
1004 move |_editor, range, cx| {
1005 let start_ix = range.start;
1006 let completions_guard = completions.read();
1007
1008 matches[range]
1009 .iter()
1010 .enumerate()
1011 .map(|(ix, mat)| {
1012 let item_ix = start_ix + ix;
1013 let candidate_id = mat.candidate_id;
1014 let completion = &completions_guard[candidate_id];
1015
1016 let documentation = if show_completion_documentation {
1017 &completion.documentation
1018 } else {
1019 &None
1020 };
1021
1022 let highlights = gpui::combine_highlights(
1023 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1024 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1025 |(range, mut highlight)| {
1026 // Ignore font weight for syntax highlighting, as we'll use it
1027 // for fuzzy matches.
1028 highlight.font_weight = None;
1029
1030 if completion.lsp_completion.deprecated.unwrap_or(false) {
1031 highlight.strikethrough = Some(StrikethroughStyle {
1032 thickness: 1.0.into(),
1033 ..Default::default()
1034 });
1035 highlight.color = Some(cx.theme().colors().text_muted);
1036 }
1037
1038 (range, highlight)
1039 },
1040 ),
1041 );
1042 let completion_label = StyledText::new(completion.label.text.clone())
1043 .with_highlights(&style.text, highlights);
1044 let documentation_label =
1045 if let Some(Documentation::SingleLine(text)) = documentation {
1046 if text.trim().is_empty() {
1047 None
1048 } else {
1049 Some(
1050 h_flex().ml_4().child(
1051 Label::new(text.clone())
1052 .size(LabelSize::Small)
1053 .color(Color::Muted),
1054 ),
1055 )
1056 }
1057 } else {
1058 None
1059 };
1060
1061 div().min_w(px(220.)).max_w(px(540.)).child(
1062 ListItem::new(mat.candidate_id)
1063 .inset(true)
1064 .selected(item_ix == selected_item)
1065 .on_click(cx.listener(move |editor, _event, cx| {
1066 cx.stop_propagation();
1067 if let Some(task) = editor.confirm_completion(
1068 &ConfirmCompletion {
1069 item_ix: Some(item_ix),
1070 },
1071 cx,
1072 ) {
1073 task.detach_and_log_err(cx)
1074 }
1075 }))
1076 .child(h_flex().overflow_hidden().child(completion_label))
1077 .end_slot::<Div>(documentation_label),
1078 )
1079 })
1080 .collect()
1081 },
1082 )
1083 .occlude()
1084 .max_h(max_height)
1085 .track_scroll(self.scroll_handle.clone())
1086 .with_width_from_item(widest_completion_ix);
1087
1088 Popover::new()
1089 .child(list)
1090 .when_some(multiline_docs, |popover, multiline_docs| {
1091 popover.aside(multiline_docs)
1092 })
1093 .into_any_element()
1094 }
1095
1096 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1097 let mut matches = if let Some(query) = query {
1098 fuzzy::match_strings(
1099 &self.match_candidates,
1100 query,
1101 query.chars().any(|c| c.is_uppercase()),
1102 100,
1103 &Default::default(),
1104 executor,
1105 )
1106 .await
1107 } else {
1108 self.match_candidates
1109 .iter()
1110 .enumerate()
1111 .map(|(candidate_id, candidate)| StringMatch {
1112 candidate_id,
1113 score: Default::default(),
1114 positions: Default::default(),
1115 string: candidate.string.clone(),
1116 })
1117 .collect()
1118 };
1119
1120 // Remove all candidates where the query's start does not match the start of any word in the candidate
1121 if let Some(query) = query {
1122 if let Some(query_start) = query.chars().next() {
1123 matches.retain(|string_match| {
1124 split_words(&string_match.string).any(|word| {
1125 // Check that the first codepoint of the word as lowercase matches the first
1126 // codepoint of the query as lowercase
1127 word.chars()
1128 .flat_map(|codepoint| codepoint.to_lowercase())
1129 .zip(query_start.to_lowercase())
1130 .all(|(word_cp, query_cp)| word_cp == query_cp)
1131 })
1132 });
1133 }
1134 }
1135
1136 let completions = self.completions.read();
1137 matches.sort_unstable_by_key(|mat| {
1138 // We do want to strike a balance here between what the language server tells us
1139 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1140 // `Creat` and there is a local variable called `CreateComponent`).
1141 // So what we do is: we bucket all matches into two buckets
1142 // - Strong matches
1143 // - Weak matches
1144 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1145 // and the Weak matches are the rest.
1146 //
1147 // For the strong matches, we sort by the language-servers score first and for the weak
1148 // matches, we prefer our fuzzy finder first.
1149 //
1150 // The thinking behind that: it's useless to take the sort_text the language-server gives
1151 // us into account when it's obviously a bad match.
1152
1153 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1154 enum MatchScore<'a> {
1155 Strong {
1156 sort_text: Option<&'a str>,
1157 score: Reverse<OrderedFloat<f64>>,
1158 sort_key: (usize, &'a str),
1159 },
1160 Weak {
1161 score: Reverse<OrderedFloat<f64>>,
1162 sort_text: Option<&'a str>,
1163 sort_key: (usize, &'a str),
1164 },
1165 }
1166
1167 let completion = &completions[mat.candidate_id];
1168 let sort_key = completion.sort_key();
1169 let sort_text = completion.lsp_completion.sort_text.as_deref();
1170 let score = Reverse(OrderedFloat(mat.score));
1171
1172 if mat.score >= 0.2 {
1173 MatchScore::Strong {
1174 sort_text,
1175 score,
1176 sort_key,
1177 }
1178 } else {
1179 MatchScore::Weak {
1180 score,
1181 sort_text,
1182 sort_key,
1183 }
1184 }
1185 });
1186
1187 for mat in &mut matches {
1188 let completion = &completions[mat.candidate_id];
1189 mat.string.clone_from(&completion.label.text);
1190 for position in &mut mat.positions {
1191 *position += completion.label.filter_range.start;
1192 }
1193 }
1194 drop(completions);
1195
1196 self.matches = matches.into();
1197 self.selected_item = 0;
1198 }
1199}
1200
1201#[derive(Clone)]
1202struct CodeActionContents {
1203 tasks: Option<Arc<ResolvedTasks>>,
1204 actions: Option<Arc<[CodeAction]>>,
1205}
1206
1207impl CodeActionContents {
1208 fn len(&self) -> usize {
1209 match (&self.tasks, &self.actions) {
1210 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1211 (Some(tasks), None) => tasks.templates.len(),
1212 (None, Some(actions)) => actions.len(),
1213 (None, None) => 0,
1214 }
1215 }
1216
1217 fn is_empty(&self) -> bool {
1218 match (&self.tasks, &self.actions) {
1219 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1220 (Some(tasks), None) => tasks.templates.is_empty(),
1221 (None, Some(actions)) => actions.is_empty(),
1222 (None, None) => true,
1223 }
1224 }
1225
1226 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1227 self.tasks
1228 .iter()
1229 .flat_map(|tasks| {
1230 tasks
1231 .templates
1232 .iter()
1233 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1234 })
1235 .chain(self.actions.iter().flat_map(|actions| {
1236 actions
1237 .iter()
1238 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1239 }))
1240 }
1241 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1242 match (&self.tasks, &self.actions) {
1243 (Some(tasks), Some(actions)) => {
1244 if index < tasks.templates.len() {
1245 tasks
1246 .templates
1247 .get(index)
1248 .cloned()
1249 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1250 } else {
1251 actions
1252 .get(index - tasks.templates.len())
1253 .cloned()
1254 .map(CodeActionsItem::CodeAction)
1255 }
1256 }
1257 (Some(tasks), None) => tasks
1258 .templates
1259 .get(index)
1260 .cloned()
1261 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1262 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1263 (None, None) => None,
1264 }
1265 }
1266}
1267
1268#[allow(clippy::large_enum_variant)]
1269#[derive(Clone)]
1270enum CodeActionsItem {
1271 Task(TaskSourceKind, ResolvedTask),
1272 CodeAction(CodeAction),
1273}
1274
1275impl CodeActionsItem {
1276 fn as_task(&self) -> Option<&ResolvedTask> {
1277 let Self::Task(_, task) = self else {
1278 return None;
1279 };
1280 Some(task)
1281 }
1282 fn as_code_action(&self) -> Option<&CodeAction> {
1283 let Self::CodeAction(action) = self else {
1284 return None;
1285 };
1286 Some(action)
1287 }
1288 fn label(&self) -> String {
1289 match self {
1290 Self::CodeAction(action) => action.lsp_action.title.clone(),
1291 Self::Task(_, task) => task.resolved_label.clone(),
1292 }
1293 }
1294}
1295
1296struct CodeActionsMenu {
1297 actions: CodeActionContents,
1298 buffer: Model<Buffer>,
1299 selected_item: usize,
1300 scroll_handle: UniformListScrollHandle,
1301 deployed_from_indicator: Option<u32>,
1302}
1303
1304impl CodeActionsMenu {
1305 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1306 self.selected_item = 0;
1307 self.scroll_handle.scroll_to_item(self.selected_item);
1308 cx.notify()
1309 }
1310
1311 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1312 if self.selected_item > 0 {
1313 self.selected_item -= 1;
1314 } else {
1315 self.selected_item = self.actions.len() - 1;
1316 }
1317 self.scroll_handle.scroll_to_item(self.selected_item);
1318 cx.notify();
1319 }
1320
1321 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1322 if self.selected_item + 1 < self.actions.len() {
1323 self.selected_item += 1;
1324 } else {
1325 self.selected_item = 0;
1326 }
1327 self.scroll_handle.scroll_to_item(self.selected_item);
1328 cx.notify();
1329 }
1330
1331 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1332 self.selected_item = self.actions.len() - 1;
1333 self.scroll_handle.scroll_to_item(self.selected_item);
1334 cx.notify()
1335 }
1336
1337 fn visible(&self) -> bool {
1338 !self.actions.is_empty()
1339 }
1340
1341 fn render(
1342 &self,
1343 cursor_position: DisplayPoint,
1344 _style: &EditorStyle,
1345 max_height: Pixels,
1346 cx: &mut ViewContext<Editor>,
1347 ) -> (ContextMenuOrigin, AnyElement) {
1348 let actions = self.actions.clone();
1349 let selected_item = self.selected_item;
1350 let element = uniform_list(
1351 cx.view().clone(),
1352 "code_actions_menu",
1353 self.actions.len(),
1354 move |_this, range, cx| {
1355 actions
1356 .iter()
1357 .skip(range.start)
1358 .take(range.end - range.start)
1359 .enumerate()
1360 .map(|(ix, action)| {
1361 let item_ix = range.start + ix;
1362 let selected = selected_item == item_ix;
1363 let colors = cx.theme().colors();
1364 div()
1365 .px_2()
1366 .text_color(colors.text)
1367 .when(selected, |style| {
1368 style
1369 .bg(colors.element_active)
1370 .text_color(colors.text_accent)
1371 })
1372 .hover(|style| {
1373 style
1374 .bg(colors.element_hover)
1375 .text_color(colors.text_accent)
1376 })
1377 .whitespace_nowrap()
1378 .when_some(action.as_code_action(), |this, action| {
1379 this.on_mouse_down(
1380 MouseButton::Left,
1381 cx.listener(move |editor, _, cx| {
1382 cx.stop_propagation();
1383 if let Some(task) = editor.confirm_code_action(
1384 &ConfirmCodeAction {
1385 item_ix: Some(item_ix),
1386 },
1387 cx,
1388 ) {
1389 task.detach_and_log_err(cx)
1390 }
1391 }),
1392 )
1393 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1394 .child(SharedString::from(action.lsp_action.title.clone()))
1395 })
1396 .when_some(action.as_task(), |this, task| {
1397 this.on_mouse_down(
1398 MouseButton::Left,
1399 cx.listener(move |editor, _, cx| {
1400 cx.stop_propagation();
1401 if let Some(task) = editor.confirm_code_action(
1402 &ConfirmCodeAction {
1403 item_ix: Some(item_ix),
1404 },
1405 cx,
1406 ) {
1407 task.detach_and_log_err(cx)
1408 }
1409 }),
1410 )
1411 .child(SharedString::from(task.resolved_label.clone()))
1412 })
1413 })
1414 .collect()
1415 },
1416 )
1417 .elevation_1(cx)
1418 .px_2()
1419 .py_1()
1420 .max_h(max_height)
1421 .occlude()
1422 .track_scroll(self.scroll_handle.clone())
1423 .with_width_from_item(
1424 self.actions
1425 .iter()
1426 .enumerate()
1427 .max_by_key(|(_, action)| match action {
1428 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1429 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1430 })
1431 .map(|(ix, _)| ix),
1432 )
1433 .into_any_element();
1434
1435 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1436 ContextMenuOrigin::GutterIndicator(row)
1437 } else {
1438 ContextMenuOrigin::EditorPoint(cursor_position)
1439 };
1440
1441 (cursor_position, element)
1442 }
1443}
1444
1445#[derive(Debug)]
1446struct ActiveDiagnosticGroup {
1447 primary_range: Range<Anchor>,
1448 primary_message: String,
1449 blocks: HashMap<BlockId, Diagnostic>,
1450 is_valid: bool,
1451}
1452
1453#[derive(Serialize, Deserialize)]
1454pub struct ClipboardSelection {
1455 pub len: usize,
1456 pub is_entire_line: bool,
1457 pub first_line_indent: u32,
1458}
1459
1460#[derive(Debug)]
1461pub(crate) struct NavigationData {
1462 cursor_anchor: Anchor,
1463 cursor_position: Point,
1464 scroll_anchor: ScrollAnchor,
1465 scroll_top_row: u32,
1466}
1467
1468enum GotoDefinitionKind {
1469 Symbol,
1470 Type,
1471 Implementation,
1472}
1473
1474#[derive(Debug, Clone)]
1475enum InlayHintRefreshReason {
1476 Toggle(bool),
1477 SettingsChange(InlayHintSettings),
1478 NewLinesShown,
1479 BufferEdited(HashSet<Arc<Language>>),
1480 RefreshRequested,
1481 ExcerptsRemoved(Vec<ExcerptId>),
1482}
1483
1484impl InlayHintRefreshReason {
1485 fn description(&self) -> &'static str {
1486 match self {
1487 Self::Toggle(_) => "toggle",
1488 Self::SettingsChange(_) => "settings change",
1489 Self::NewLinesShown => "new lines shown",
1490 Self::BufferEdited(_) => "buffer edited",
1491 Self::RefreshRequested => "refresh requested",
1492 Self::ExcerptsRemoved(_) => "excerpts removed",
1493 }
1494 }
1495}
1496
1497impl Editor {
1498 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1499 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1500 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1501 Self::new(EditorMode::SingleLine, buffer, None, cx)
1502 }
1503
1504 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1505 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1506 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1507 Self::new(EditorMode::Full, buffer, None, cx)
1508 }
1509
1510 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1511 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1512 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1513 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1514 }
1515
1516 pub fn for_buffer(
1517 buffer: Model<Buffer>,
1518 project: Option<Model<Project>>,
1519 cx: &mut ViewContext<Self>,
1520 ) -> Self {
1521 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1522 Self::new(EditorMode::Full, buffer, project, cx)
1523 }
1524
1525 pub fn for_multibuffer(
1526 buffer: Model<MultiBuffer>,
1527 project: Option<Model<Project>>,
1528 cx: &mut ViewContext<Self>,
1529 ) -> Self {
1530 Self::new(EditorMode::Full, buffer, project, cx)
1531 }
1532
1533 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1534 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1535 self.display_map.update(cx, |display_map, cx| {
1536 let snapshot = display_map.snapshot(cx);
1537 clone.display_map.update(cx, |display_map, cx| {
1538 display_map.set_state(&snapshot, cx);
1539 });
1540 });
1541 clone.selections.clone_state(&self.selections);
1542 clone.scroll_manager.clone_state(&self.scroll_manager);
1543 clone.searchable = self.searchable;
1544 clone
1545 }
1546
1547 fn new(
1548 mode: EditorMode,
1549 buffer: Model<MultiBuffer>,
1550 project: Option<Model<Project>>,
1551 cx: &mut ViewContext<Self>,
1552 ) -> Self {
1553 let style = cx.text_style();
1554 let font_size = style.font_size.to_pixels(cx.rem_size());
1555 let display_map = cx.new_model(|cx| {
1556 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1557 });
1558
1559 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1560
1561 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1562
1563 let soft_wrap_mode_override =
1564 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1565
1566 let mut project_subscriptions = Vec::new();
1567 if mode == EditorMode::Full {
1568 if let Some(project) = project.as_ref() {
1569 if buffer.read(cx).is_singleton() {
1570 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1571 cx.emit(EditorEvent::TitleChanged);
1572 }));
1573 }
1574 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1575 if let project::Event::RefreshInlayHints = event {
1576 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1577 };
1578 }));
1579 }
1580 }
1581
1582 let inlay_hint_settings = inlay_hint_settings(
1583 selections.newest_anchor().head(),
1584 &buffer.read(cx).snapshot(cx),
1585 cx,
1586 );
1587
1588 let focus_handle = cx.focus_handle();
1589 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1590 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1591
1592 let mut this = Self {
1593 focus_handle,
1594 buffer: buffer.clone(),
1595 display_map: display_map.clone(),
1596 selections,
1597 scroll_manager: ScrollManager::new(cx),
1598 columnar_selection_tail: None,
1599 add_selections_state: None,
1600 select_next_state: None,
1601 select_prev_state: None,
1602 selection_history: Default::default(),
1603 autoclose_regions: Default::default(),
1604 snippet_stack: Default::default(),
1605 select_larger_syntax_node_stack: Vec::new(),
1606 ime_transaction: Default::default(),
1607 active_diagnostics: None,
1608 soft_wrap_mode_override,
1609 completion_provider: project.clone().map(|project| Box::new(project) as _),
1610 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1611 project,
1612 blink_manager: blink_manager.clone(),
1613 show_local_selections: true,
1614 mode,
1615 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1616 show_gutter: mode == EditorMode::Full,
1617 show_wrap_guides: None,
1618 placeholder_text: None,
1619 highlight_order: 0,
1620 highlighted_rows: HashMap::default(),
1621 background_highlights: Default::default(),
1622 scrollbar_marker_state: ScrollbarMarkerState::default(),
1623 nav_history: None,
1624 context_menu: RwLock::new(None),
1625 mouse_context_menu: None,
1626 completion_tasks: Default::default(),
1627 find_all_references_task_sources: Vec::new(),
1628 next_completion_id: 0,
1629 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1630 next_inlay_id: 0,
1631 available_code_actions: Default::default(),
1632 code_actions_task: Default::default(),
1633 document_highlights_task: Default::default(),
1634 pending_rename: Default::default(),
1635 searchable: true,
1636 cursor_shape: Default::default(),
1637 autoindent_mode: Some(AutoindentMode::EachLine),
1638 collapse_matches: false,
1639 workspace: None,
1640 keymap_context_layers: Default::default(),
1641 input_enabled: true,
1642 use_modal_editing: mode == EditorMode::Full,
1643 read_only: false,
1644 use_autoclose: true,
1645 auto_replace_emoji_shortcode: false,
1646 leader_peer_id: None,
1647 remote_id: None,
1648 hover_state: Default::default(),
1649 hovered_link_state: Default::default(),
1650 inline_completion_provider: None,
1651 active_inline_completion: None,
1652 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1653 expanded_hunks: ExpandedHunks::default(),
1654 gutter_hovered: false,
1655 pixel_position_of_newest_cursor: None,
1656 last_bounds: None,
1657 expect_bounds_change: None,
1658 gutter_dimensions: GutterDimensions::default(),
1659 style: None,
1660 show_cursor_names: false,
1661 hovered_cursors: Default::default(),
1662 editor_actions: Default::default(),
1663 vim_replace_map: Default::default(),
1664 show_inline_completions: mode == EditorMode::Full,
1665 custom_context_menu: None,
1666 show_git_blame_gutter: false,
1667 show_git_blame_inline: false,
1668 show_git_blame_inline_delay_task: None,
1669 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1670 blame: None,
1671 blame_subscription: None,
1672 tasks: Default::default(),
1673 _subscriptions: vec![
1674 cx.observe(&buffer, Self::on_buffer_changed),
1675 cx.subscribe(&buffer, Self::on_buffer_event),
1676 cx.observe(&display_map, Self::on_display_map_changed),
1677 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1678 cx.observe_global::<SettingsStore>(Self::settings_changed),
1679 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1680 cx.observe_window_activation(|editor, cx| {
1681 let active = cx.is_window_active();
1682 editor.blink_manager.update(cx, |blink_manager, cx| {
1683 if active {
1684 blink_manager.enable(cx);
1685 } else {
1686 blink_manager.show_cursor(cx);
1687 blink_manager.disable(cx);
1688 }
1689 });
1690 }),
1691 ],
1692 tasks_update_task: None,
1693 };
1694 this.tasks_update_task = Some(this.refresh_runnables(cx));
1695 this._subscriptions.extend(project_subscriptions);
1696
1697 this.end_selection(cx);
1698 this.scroll_manager.show_scrollbar(cx);
1699
1700 if mode == EditorMode::Full {
1701 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1702 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1703
1704 if this.git_blame_inline_enabled {
1705 this.git_blame_inline_enabled = true;
1706 this.start_git_blame_inline(false, cx);
1707 }
1708 }
1709
1710 this.report_editor_event("open", None, cx);
1711 this
1712 }
1713
1714 fn key_context(&self, cx: &AppContext) -> KeyContext {
1715 let mut key_context = KeyContext::new_with_defaults();
1716 key_context.add("Editor");
1717 let mode = match self.mode {
1718 EditorMode::SingleLine => "single_line",
1719 EditorMode::AutoHeight { .. } => "auto_height",
1720 EditorMode::Full => "full",
1721 };
1722 key_context.set("mode", mode);
1723 if self.pending_rename.is_some() {
1724 key_context.add("renaming");
1725 }
1726 if self.context_menu_visible() {
1727 match self.context_menu.read().as_ref() {
1728 Some(ContextMenu::Completions(_)) => {
1729 key_context.add("menu");
1730 key_context.add("showing_completions")
1731 }
1732 Some(ContextMenu::CodeActions(_)) => {
1733 key_context.add("menu");
1734 key_context.add("showing_code_actions")
1735 }
1736 None => {}
1737 }
1738 }
1739
1740 for layer in self.keymap_context_layers.values() {
1741 key_context.extend(layer);
1742 }
1743
1744 if let Some(extension) = self
1745 .buffer
1746 .read(cx)
1747 .as_singleton()
1748 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1749 {
1750 key_context.set("extension", extension.to_string());
1751 }
1752
1753 if self.has_active_inline_completion(cx) {
1754 key_context.add("copilot_suggestion");
1755 key_context.add("inline_completion");
1756 }
1757
1758 key_context
1759 }
1760
1761 pub fn new_file(
1762 workspace: &mut Workspace,
1763 _: &workspace::NewFile,
1764 cx: &mut ViewContext<Workspace>,
1765 ) {
1766 let project = workspace.project().clone();
1767 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1768
1769 cx.spawn(|workspace, mut cx| async move {
1770 let buffer = create.await?;
1771 workspace.update(&mut cx, |workspace, cx| {
1772 workspace.add_item_to_active_pane(
1773 Box::new(
1774 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1775 ),
1776 None,
1777 cx,
1778 )
1779 })
1780 })
1781 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1782 ErrorCode::RemoteUpgradeRequired => Some(format!(
1783 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1784 e.error_tag("required").unwrap_or("the latest version")
1785 )),
1786 _ => None,
1787 });
1788 }
1789
1790 pub fn new_file_in_direction(
1791 workspace: &mut Workspace,
1792 action: &workspace::NewFileInDirection,
1793 cx: &mut ViewContext<Workspace>,
1794 ) {
1795 let project = workspace.project().clone();
1796 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1797 let direction = action.0;
1798
1799 cx.spawn(|workspace, mut cx| async move {
1800 let buffer = create.await?;
1801 workspace.update(&mut cx, move |workspace, cx| {
1802 workspace.split_item(
1803 direction,
1804 Box::new(
1805 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1806 ),
1807 cx,
1808 )
1809 })?;
1810 anyhow::Ok(())
1811 })
1812 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1813 ErrorCode::RemoteUpgradeRequired => Some(format!(
1814 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1815 e.error_tag("required").unwrap_or("the latest version")
1816 )),
1817 _ => None,
1818 });
1819 }
1820
1821 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1822 self.buffer.read(cx).replica_id()
1823 }
1824
1825 pub fn leader_peer_id(&self) -> Option<PeerId> {
1826 self.leader_peer_id
1827 }
1828
1829 pub fn buffer(&self) -> &Model<MultiBuffer> {
1830 &self.buffer
1831 }
1832
1833 pub fn workspace(&self) -> Option<View<Workspace>> {
1834 self.workspace.as_ref()?.0.upgrade()
1835 }
1836
1837 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1838 self.buffer().read(cx).title(cx)
1839 }
1840
1841 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1842 EditorSnapshot {
1843 mode: self.mode,
1844 show_gutter: self.show_gutter,
1845 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1846 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1847 scroll_anchor: self.scroll_manager.anchor(),
1848 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1849 placeholder_text: self.placeholder_text.clone(),
1850 is_focused: self.focus_handle.is_focused(cx),
1851 }
1852 }
1853
1854 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1855 self.buffer.read(cx).language_at(point, cx)
1856 }
1857
1858 pub fn file_at<T: ToOffset>(
1859 &self,
1860 point: T,
1861 cx: &AppContext,
1862 ) -> Option<Arc<dyn language::File>> {
1863 self.buffer.read(cx).read(cx).file_at(point).cloned()
1864 }
1865
1866 pub fn active_excerpt(
1867 &self,
1868 cx: &AppContext,
1869 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1870 self.buffer
1871 .read(cx)
1872 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1873 }
1874
1875 pub fn mode(&self) -> EditorMode {
1876 self.mode
1877 }
1878
1879 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1880 self.collaboration_hub.as_deref()
1881 }
1882
1883 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1884 self.collaboration_hub = Some(hub);
1885 }
1886
1887 pub fn set_custom_context_menu(
1888 &mut self,
1889 f: impl 'static
1890 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1891 ) {
1892 self.custom_context_menu = Some(Box::new(f))
1893 }
1894
1895 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1896 self.completion_provider = Some(hub);
1897 }
1898
1899 pub fn set_inline_completion_provider<T>(
1900 &mut self,
1901 provider: Option<Model<T>>,
1902 cx: &mut ViewContext<Self>,
1903 ) where
1904 T: InlineCompletionProvider,
1905 {
1906 self.inline_completion_provider =
1907 provider.map(|provider| RegisteredInlineCompletionProvider {
1908 _subscription: cx.observe(&provider, |this, _, cx| {
1909 if this.focus_handle.is_focused(cx) {
1910 this.update_visible_inline_completion(cx);
1911 }
1912 }),
1913 provider: Arc::new(provider),
1914 });
1915 self.refresh_inline_completion(false, cx);
1916 }
1917
1918 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1919 self.placeholder_text.as_deref()
1920 }
1921
1922 pub fn set_placeholder_text(
1923 &mut self,
1924 placeholder_text: impl Into<Arc<str>>,
1925 cx: &mut ViewContext<Self>,
1926 ) {
1927 let placeholder_text = Some(placeholder_text.into());
1928 if self.placeholder_text != placeholder_text {
1929 self.placeholder_text = placeholder_text;
1930 cx.notify();
1931 }
1932 }
1933
1934 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1935 self.cursor_shape = cursor_shape;
1936 cx.notify();
1937 }
1938
1939 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1940 self.collapse_matches = collapse_matches;
1941 }
1942
1943 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1944 if self.collapse_matches {
1945 return range.start..range.start;
1946 }
1947 range.clone()
1948 }
1949
1950 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1951 if self.display_map.read(cx).clip_at_line_ends != clip {
1952 self.display_map
1953 .update(cx, |map, _| map.clip_at_line_ends = clip);
1954 }
1955 }
1956
1957 pub fn set_keymap_context_layer<Tag: 'static>(
1958 &mut self,
1959 context: KeyContext,
1960 cx: &mut ViewContext<Self>,
1961 ) {
1962 self.keymap_context_layers
1963 .insert(TypeId::of::<Tag>(), context);
1964 cx.notify();
1965 }
1966
1967 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1968 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1969 cx.notify();
1970 }
1971
1972 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1973 self.input_enabled = input_enabled;
1974 }
1975
1976 pub fn set_autoindent(&mut self, autoindent: bool) {
1977 if autoindent {
1978 self.autoindent_mode = Some(AutoindentMode::EachLine);
1979 } else {
1980 self.autoindent_mode = None;
1981 }
1982 }
1983
1984 pub fn read_only(&self, cx: &AppContext) -> bool {
1985 self.read_only || self.buffer.read(cx).read_only()
1986 }
1987
1988 pub fn set_read_only(&mut self, read_only: bool) {
1989 self.read_only = read_only;
1990 }
1991
1992 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1993 self.use_autoclose = autoclose;
1994 }
1995
1996 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1997 self.auto_replace_emoji_shortcode = auto_replace;
1998 }
1999
2000 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2001 self.show_inline_completions = show_inline_completions;
2002 }
2003
2004 pub fn set_use_modal_editing(&mut self, to: bool) {
2005 self.use_modal_editing = to;
2006 }
2007
2008 pub fn use_modal_editing(&self) -> bool {
2009 self.use_modal_editing
2010 }
2011
2012 fn selections_did_change(
2013 &mut self,
2014 local: bool,
2015 old_cursor_position: &Anchor,
2016 cx: &mut ViewContext<Self>,
2017 ) {
2018 // Copy selections to primary selection buffer
2019 #[cfg(target_os = "linux")]
2020 if local {
2021 let selections = self.selections.all::<usize>(cx);
2022 let buffer_handle = self.buffer.read(cx).read(cx);
2023
2024 let mut text = String::new();
2025 for (index, selection) in selections.iter().enumerate() {
2026 let text_for_selection = buffer_handle
2027 .text_for_range(selection.start..selection.end)
2028 .collect::<String>();
2029
2030 text.push_str(&text_for_selection);
2031 if index != selections.len() - 1 {
2032 text.push('\n');
2033 }
2034 }
2035
2036 if !text.is_empty() {
2037 cx.write_to_primary(ClipboardItem::new(text));
2038 }
2039 }
2040
2041 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2042 self.buffer.update(cx, |buffer, cx| {
2043 buffer.set_active_selections(
2044 &self.selections.disjoint_anchors(),
2045 self.selections.line_mode,
2046 self.cursor_shape,
2047 cx,
2048 )
2049 });
2050 }
2051
2052 let display_map = self
2053 .display_map
2054 .update(cx, |display_map, cx| display_map.snapshot(cx));
2055 let buffer = &display_map.buffer_snapshot;
2056 self.add_selections_state = None;
2057 self.select_next_state = None;
2058 self.select_prev_state = None;
2059 self.select_larger_syntax_node_stack.clear();
2060 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2061 self.snippet_stack
2062 .invalidate(&self.selections.disjoint_anchors(), buffer);
2063 self.take_rename(false, cx);
2064
2065 let new_cursor_position = self.selections.newest_anchor().head();
2066
2067 self.push_to_nav_history(
2068 *old_cursor_position,
2069 Some(new_cursor_position.to_point(buffer)),
2070 cx,
2071 );
2072
2073 if local {
2074 let new_cursor_position = self.selections.newest_anchor().head();
2075 let mut context_menu = self.context_menu.write();
2076 let completion_menu = match context_menu.as_ref() {
2077 Some(ContextMenu::Completions(menu)) => Some(menu),
2078
2079 _ => {
2080 *context_menu = None;
2081 None
2082 }
2083 };
2084
2085 if let Some(completion_menu) = completion_menu {
2086 let cursor_position = new_cursor_position.to_offset(buffer);
2087 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2088 if kind == Some(CharKind::Word)
2089 && word_range.to_inclusive().contains(&cursor_position)
2090 {
2091 let mut completion_menu = completion_menu.clone();
2092 drop(context_menu);
2093
2094 let query = Self::completion_query(buffer, cursor_position);
2095 cx.spawn(move |this, mut cx| async move {
2096 completion_menu
2097 .filter(query.as_deref(), cx.background_executor().clone())
2098 .await;
2099
2100 this.update(&mut cx, |this, cx| {
2101 let mut context_menu = this.context_menu.write();
2102 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2103 return;
2104 };
2105
2106 if menu.id > completion_menu.id {
2107 return;
2108 }
2109
2110 *context_menu = Some(ContextMenu::Completions(completion_menu));
2111 drop(context_menu);
2112 cx.notify();
2113 })
2114 })
2115 .detach();
2116
2117 self.show_completions(&ShowCompletions, cx);
2118 } else {
2119 drop(context_menu);
2120 self.hide_context_menu(cx);
2121 }
2122 } else {
2123 drop(context_menu);
2124 }
2125
2126 hide_hover(self, cx);
2127
2128 if old_cursor_position.to_display_point(&display_map).row()
2129 != new_cursor_position.to_display_point(&display_map).row()
2130 {
2131 self.available_code_actions.take();
2132 }
2133 self.refresh_code_actions(cx);
2134 self.refresh_document_highlights(cx);
2135 refresh_matching_bracket_highlights(self, cx);
2136 self.discard_inline_completion(cx);
2137 if self.git_blame_inline_enabled {
2138 self.start_inline_blame_timer(cx);
2139 }
2140 }
2141
2142 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2143 cx.emit(EditorEvent::SelectionsChanged { local });
2144
2145 if self.selections.disjoint_anchors().len() == 1 {
2146 cx.emit(SearchEvent::ActiveMatchChanged)
2147 }
2148
2149 cx.notify();
2150 }
2151
2152 pub fn change_selections<R>(
2153 &mut self,
2154 autoscroll: Option<Autoscroll>,
2155 cx: &mut ViewContext<Self>,
2156 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2157 ) -> R {
2158 let old_cursor_position = self.selections.newest_anchor().head();
2159 self.push_to_selection_history();
2160
2161 let (changed, result) = self.selections.change_with(cx, change);
2162
2163 if changed {
2164 if let Some(autoscroll) = autoscroll {
2165 self.request_autoscroll(autoscroll, cx);
2166 }
2167 self.selections_did_change(true, &old_cursor_position, cx);
2168 }
2169
2170 result
2171 }
2172
2173 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2174 where
2175 I: IntoIterator<Item = (Range<S>, T)>,
2176 S: ToOffset,
2177 T: Into<Arc<str>>,
2178 {
2179 if self.read_only(cx) {
2180 return;
2181 }
2182
2183 self.buffer
2184 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2185 }
2186
2187 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2188 where
2189 I: IntoIterator<Item = (Range<S>, T)>,
2190 S: ToOffset,
2191 T: Into<Arc<str>>,
2192 {
2193 if self.read_only(cx) {
2194 return;
2195 }
2196
2197 self.buffer.update(cx, |buffer, cx| {
2198 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2199 });
2200 }
2201
2202 pub fn edit_with_block_indent<I, S, T>(
2203 &mut self,
2204 edits: I,
2205 original_indent_columns: Vec<u32>,
2206 cx: &mut ViewContext<Self>,
2207 ) where
2208 I: IntoIterator<Item = (Range<S>, T)>,
2209 S: ToOffset,
2210 T: Into<Arc<str>>,
2211 {
2212 if self.read_only(cx) {
2213 return;
2214 }
2215
2216 self.buffer.update(cx, |buffer, cx| {
2217 buffer.edit(
2218 edits,
2219 Some(AutoindentMode::Block {
2220 original_indent_columns,
2221 }),
2222 cx,
2223 )
2224 });
2225 }
2226
2227 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2228 self.hide_context_menu(cx);
2229
2230 match phase {
2231 SelectPhase::Begin {
2232 position,
2233 add,
2234 click_count,
2235 } => self.begin_selection(position, add, click_count, cx),
2236 SelectPhase::BeginColumnar {
2237 position,
2238 goal_column,
2239 } => self.begin_columnar_selection(position, goal_column, cx),
2240 SelectPhase::Extend {
2241 position,
2242 click_count,
2243 } => self.extend_selection(position, click_count, cx),
2244 SelectPhase::Update {
2245 position,
2246 goal_column,
2247 scroll_delta,
2248 } => self.update_selection(position, goal_column, scroll_delta, cx),
2249 SelectPhase::End => self.end_selection(cx),
2250 }
2251 }
2252
2253 fn extend_selection(
2254 &mut self,
2255 position: DisplayPoint,
2256 click_count: usize,
2257 cx: &mut ViewContext<Self>,
2258 ) {
2259 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2260 let tail = self.selections.newest::<usize>(cx).tail();
2261 self.begin_selection(position, false, click_count, cx);
2262
2263 let position = position.to_offset(&display_map, Bias::Left);
2264 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2265
2266 let mut pending_selection = self
2267 .selections
2268 .pending_anchor()
2269 .expect("extend_selection not called with pending selection");
2270 if position >= tail {
2271 pending_selection.start = tail_anchor;
2272 } else {
2273 pending_selection.end = tail_anchor;
2274 pending_selection.reversed = true;
2275 }
2276
2277 let mut pending_mode = self.selections.pending_mode().unwrap();
2278 match &mut pending_mode {
2279 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2280 _ => {}
2281 }
2282
2283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2284 s.set_pending(pending_selection, pending_mode)
2285 });
2286 }
2287
2288 fn begin_selection(
2289 &mut self,
2290 position: DisplayPoint,
2291 add: bool,
2292 click_count: usize,
2293 cx: &mut ViewContext<Self>,
2294 ) {
2295 if !self.focus_handle.is_focused(cx) {
2296 cx.focus(&self.focus_handle);
2297 }
2298
2299 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2300 let buffer = &display_map.buffer_snapshot;
2301 let newest_selection = self.selections.newest_anchor().clone();
2302 let position = display_map.clip_point(position, Bias::Left);
2303
2304 let start;
2305 let end;
2306 let mode;
2307 let auto_scroll;
2308 match click_count {
2309 1 => {
2310 start = buffer.anchor_before(position.to_point(&display_map));
2311 end = start;
2312 mode = SelectMode::Character;
2313 auto_scroll = true;
2314 }
2315 2 => {
2316 let range = movement::surrounding_word(&display_map, position);
2317 start = buffer.anchor_before(range.start.to_point(&display_map));
2318 end = buffer.anchor_before(range.end.to_point(&display_map));
2319 mode = SelectMode::Word(start..end);
2320 auto_scroll = true;
2321 }
2322 3 => {
2323 let position = display_map
2324 .clip_point(position, Bias::Left)
2325 .to_point(&display_map);
2326 let line_start = display_map.prev_line_boundary(position).0;
2327 let next_line_start = buffer.clip_point(
2328 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2329 Bias::Left,
2330 );
2331 start = buffer.anchor_before(line_start);
2332 end = buffer.anchor_before(next_line_start);
2333 mode = SelectMode::Line(start..end);
2334 auto_scroll = true;
2335 }
2336 _ => {
2337 start = buffer.anchor_before(0);
2338 end = buffer.anchor_before(buffer.len());
2339 mode = SelectMode::All;
2340 auto_scroll = false;
2341 }
2342 }
2343
2344 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2345 if !add {
2346 s.clear_disjoint();
2347 } else if click_count > 1 {
2348 s.delete(newest_selection.id)
2349 }
2350
2351 s.set_pending_anchor_range(start..end, mode);
2352 });
2353 }
2354
2355 fn begin_columnar_selection(
2356 &mut self,
2357 position: DisplayPoint,
2358 goal_column: u32,
2359 cx: &mut ViewContext<Self>,
2360 ) {
2361 if !self.focus_handle.is_focused(cx) {
2362 cx.focus(&self.focus_handle);
2363 }
2364
2365 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2366 let tail = self.selections.newest::<Point>(cx).tail();
2367 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2368
2369 self.select_columns(
2370 tail.to_display_point(&display_map),
2371 position,
2372 goal_column,
2373 &display_map,
2374 cx,
2375 );
2376 }
2377
2378 fn update_selection(
2379 &mut self,
2380 position: DisplayPoint,
2381 goal_column: u32,
2382 scroll_delta: gpui::Point<f32>,
2383 cx: &mut ViewContext<Self>,
2384 ) {
2385 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2386
2387 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2388 let tail = tail.to_display_point(&display_map);
2389 self.select_columns(tail, position, goal_column, &display_map, cx);
2390 } else if let Some(mut pending) = self.selections.pending_anchor() {
2391 let buffer = self.buffer.read(cx).snapshot(cx);
2392 let head;
2393 let tail;
2394 let mode = self.selections.pending_mode().unwrap();
2395 match &mode {
2396 SelectMode::Character => {
2397 head = position.to_point(&display_map);
2398 tail = pending.tail().to_point(&buffer);
2399 }
2400 SelectMode::Word(original_range) => {
2401 let original_display_range = original_range.start.to_display_point(&display_map)
2402 ..original_range.end.to_display_point(&display_map);
2403 let original_buffer_range = original_display_range.start.to_point(&display_map)
2404 ..original_display_range.end.to_point(&display_map);
2405 if movement::is_inside_word(&display_map, position)
2406 || original_display_range.contains(&position)
2407 {
2408 let word_range = movement::surrounding_word(&display_map, position);
2409 if word_range.start < original_display_range.start {
2410 head = word_range.start.to_point(&display_map);
2411 } else {
2412 head = word_range.end.to_point(&display_map);
2413 }
2414 } else {
2415 head = position.to_point(&display_map);
2416 }
2417
2418 if head <= original_buffer_range.start {
2419 tail = original_buffer_range.end;
2420 } else {
2421 tail = original_buffer_range.start;
2422 }
2423 }
2424 SelectMode::Line(original_range) => {
2425 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2426
2427 let position = display_map
2428 .clip_point(position, Bias::Left)
2429 .to_point(&display_map);
2430 let line_start = display_map.prev_line_boundary(position).0;
2431 let next_line_start = buffer.clip_point(
2432 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2433 Bias::Left,
2434 );
2435
2436 if line_start < original_range.start {
2437 head = line_start
2438 } else {
2439 head = next_line_start
2440 }
2441
2442 if head <= original_range.start {
2443 tail = original_range.end;
2444 } else {
2445 tail = original_range.start;
2446 }
2447 }
2448 SelectMode::All => {
2449 return;
2450 }
2451 };
2452
2453 if head < tail {
2454 pending.start = buffer.anchor_before(head);
2455 pending.end = buffer.anchor_before(tail);
2456 pending.reversed = true;
2457 } else {
2458 pending.start = buffer.anchor_before(tail);
2459 pending.end = buffer.anchor_before(head);
2460 pending.reversed = false;
2461 }
2462
2463 self.change_selections(None, cx, |s| {
2464 s.set_pending(pending, mode);
2465 });
2466 } else {
2467 log::error!("update_selection dispatched with no pending selection");
2468 return;
2469 }
2470
2471 self.apply_scroll_delta(scroll_delta, cx);
2472 cx.notify();
2473 }
2474
2475 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2476 self.columnar_selection_tail.take();
2477 if self.selections.pending_anchor().is_some() {
2478 let selections = self.selections.all::<usize>(cx);
2479 self.change_selections(None, cx, |s| {
2480 s.select(selections);
2481 s.clear_pending();
2482 });
2483 }
2484 }
2485
2486 fn select_columns(
2487 &mut self,
2488 tail: DisplayPoint,
2489 head: DisplayPoint,
2490 goal_column: u32,
2491 display_map: &DisplaySnapshot,
2492 cx: &mut ViewContext<Self>,
2493 ) {
2494 let start_row = cmp::min(tail.row(), head.row());
2495 let end_row = cmp::max(tail.row(), head.row());
2496 let start_column = cmp::min(tail.column(), goal_column);
2497 let end_column = cmp::max(tail.column(), goal_column);
2498 let reversed = start_column < tail.column();
2499
2500 let selection_ranges = (start_row..=end_row)
2501 .filter_map(|row| {
2502 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2503 let start = display_map
2504 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2505 .to_point(display_map);
2506 let end = display_map
2507 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2508 .to_point(display_map);
2509 if reversed {
2510 Some(end..start)
2511 } else {
2512 Some(start..end)
2513 }
2514 } else {
2515 None
2516 }
2517 })
2518 .collect::<Vec<_>>();
2519
2520 self.change_selections(None, cx, |s| {
2521 s.select_ranges(selection_ranges);
2522 });
2523 cx.notify();
2524 }
2525
2526 pub fn has_pending_nonempty_selection(&self) -> bool {
2527 let pending_nonempty_selection = match self.selections.pending_anchor() {
2528 Some(Selection { start, end, .. }) => start != end,
2529 None => false,
2530 };
2531 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2532 }
2533
2534 pub fn has_pending_selection(&self) -> bool {
2535 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2536 }
2537
2538 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2539 self.clear_expanded_diff_hunks(cx);
2540 if self.dismiss_menus_and_popups(cx) {
2541 return;
2542 }
2543
2544 if self.mode == EditorMode::Full {
2545 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2546 return;
2547 }
2548 }
2549
2550 cx.propagate();
2551 }
2552
2553 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2554 if self.take_rename(false, cx).is_some() {
2555 return true;
2556 }
2557
2558 if hide_hover(self, cx) {
2559 return true;
2560 }
2561
2562 if self.hide_context_menu(cx).is_some() {
2563 return true;
2564 }
2565
2566 if self.discard_inline_completion(cx) {
2567 return true;
2568 }
2569
2570 if self.snippet_stack.pop().is_some() {
2571 return true;
2572 }
2573
2574 if self.mode == EditorMode::Full {
2575 if self.active_diagnostics.is_some() {
2576 self.dismiss_diagnostics(cx);
2577 return true;
2578 }
2579 }
2580
2581 false
2582 }
2583
2584 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2585 let text: Arc<str> = text.into();
2586
2587 if self.read_only(cx) {
2588 return;
2589 }
2590
2591 let selections = self.selections.all_adjusted(cx);
2592 let mut brace_inserted = false;
2593 let mut edits = Vec::new();
2594 let mut new_selections = Vec::with_capacity(selections.len());
2595 let mut new_autoclose_regions = Vec::new();
2596 let snapshot = self.buffer.read(cx).read(cx);
2597
2598 for (selection, autoclose_region) in
2599 self.selections_with_autoclose_regions(selections, &snapshot)
2600 {
2601 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2602 // Determine if the inserted text matches the opening or closing
2603 // bracket of any of this language's bracket pairs.
2604 let mut bracket_pair = None;
2605 let mut is_bracket_pair_start = false;
2606 let mut is_bracket_pair_end = false;
2607 if !text.is_empty() {
2608 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2609 // and they are removing the character that triggered IME popup.
2610 for (pair, enabled) in scope.brackets() {
2611 if !pair.close {
2612 continue;
2613 }
2614
2615 if enabled && pair.start.ends_with(text.as_ref()) {
2616 bracket_pair = Some(pair.clone());
2617 is_bracket_pair_start = true;
2618 break;
2619 }
2620 if pair.end.as_str() == text.as_ref() {
2621 bracket_pair = Some(pair.clone());
2622 is_bracket_pair_end = true;
2623 break;
2624 }
2625 }
2626 }
2627
2628 if let Some(bracket_pair) = bracket_pair {
2629 if selection.is_empty() {
2630 if is_bracket_pair_start {
2631 let prefix_len = bracket_pair.start.len() - text.len();
2632
2633 // If the inserted text is a suffix of an opening bracket and the
2634 // selection is preceded by the rest of the opening bracket, then
2635 // insert the closing bracket.
2636 let following_text_allows_autoclose = snapshot
2637 .chars_at(selection.start)
2638 .next()
2639 .map_or(true, |c| scope.should_autoclose_before(c));
2640 let preceding_text_matches_prefix = prefix_len == 0
2641 || (selection.start.column >= (prefix_len as u32)
2642 && snapshot.contains_str_at(
2643 Point::new(
2644 selection.start.row,
2645 selection.start.column - (prefix_len as u32),
2646 ),
2647 &bracket_pair.start[..prefix_len],
2648 ));
2649 let autoclose = self.use_autoclose
2650 && snapshot.settings_at(selection.start, cx).use_autoclose;
2651 if autoclose
2652 && following_text_allows_autoclose
2653 && preceding_text_matches_prefix
2654 {
2655 let anchor = snapshot.anchor_before(selection.end);
2656 new_selections.push((selection.map(|_| anchor), text.len()));
2657 new_autoclose_regions.push((
2658 anchor,
2659 text.len(),
2660 selection.id,
2661 bracket_pair.clone(),
2662 ));
2663 edits.push((
2664 selection.range(),
2665 format!("{}{}", text, bracket_pair.end).into(),
2666 ));
2667 brace_inserted = true;
2668 continue;
2669 }
2670 }
2671
2672 if let Some(region) = autoclose_region {
2673 // If the selection is followed by an auto-inserted closing bracket,
2674 // then don't insert that closing bracket again; just move the selection
2675 // past the closing bracket.
2676 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2677 && text.as_ref() == region.pair.end.as_str();
2678 if should_skip {
2679 let anchor = snapshot.anchor_after(selection.end);
2680 new_selections
2681 .push((selection.map(|_| anchor), region.pair.end.len()));
2682 continue;
2683 }
2684 }
2685
2686 let always_treat_brackets_as_autoclosed = snapshot
2687 .settings_at(selection.start, cx)
2688 .always_treat_brackets_as_autoclosed;
2689 if always_treat_brackets_as_autoclosed
2690 && is_bracket_pair_end
2691 && snapshot.contains_str_at(selection.end, text.as_ref())
2692 {
2693 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2694 // and the inserted text is a closing bracket and the selection is followed
2695 // by the closing bracket then move the selection past the closing bracket.
2696 let anchor = snapshot.anchor_after(selection.end);
2697 new_selections.push((selection.map(|_| anchor), text.len()));
2698 continue;
2699 }
2700 }
2701 // If an opening bracket is 1 character long and is typed while
2702 // text is selected, then surround that text with the bracket pair.
2703 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2704 edits.push((selection.start..selection.start, text.clone()));
2705 edits.push((
2706 selection.end..selection.end,
2707 bracket_pair.end.as_str().into(),
2708 ));
2709 brace_inserted = true;
2710 new_selections.push((
2711 Selection {
2712 id: selection.id,
2713 start: snapshot.anchor_after(selection.start),
2714 end: snapshot.anchor_before(selection.end),
2715 reversed: selection.reversed,
2716 goal: selection.goal,
2717 },
2718 0,
2719 ));
2720 continue;
2721 }
2722 }
2723 }
2724
2725 if self.auto_replace_emoji_shortcode
2726 && selection.is_empty()
2727 && text.as_ref().ends_with(':')
2728 {
2729 if let Some(possible_emoji_short_code) =
2730 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2731 {
2732 if !possible_emoji_short_code.is_empty() {
2733 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2734 let emoji_shortcode_start = Point::new(
2735 selection.start.row,
2736 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2737 );
2738
2739 // Remove shortcode from buffer
2740 edits.push((
2741 emoji_shortcode_start..selection.start,
2742 "".to_string().into(),
2743 ));
2744 new_selections.push((
2745 Selection {
2746 id: selection.id,
2747 start: snapshot.anchor_after(emoji_shortcode_start),
2748 end: snapshot.anchor_before(selection.start),
2749 reversed: selection.reversed,
2750 goal: selection.goal,
2751 },
2752 0,
2753 ));
2754
2755 // Insert emoji
2756 let selection_start_anchor = snapshot.anchor_after(selection.start);
2757 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2758 edits.push((selection.start..selection.end, emoji.to_string().into()));
2759
2760 continue;
2761 }
2762 }
2763 }
2764 }
2765
2766 // If not handling any auto-close operation, then just replace the selected
2767 // text with the given input and move the selection to the end of the
2768 // newly inserted text.
2769 let anchor = snapshot.anchor_after(selection.end);
2770 new_selections.push((selection.map(|_| anchor), 0));
2771 edits.push((selection.start..selection.end, text.clone()));
2772 }
2773
2774 drop(snapshot);
2775 self.transact(cx, |this, cx| {
2776 this.buffer.update(cx, |buffer, cx| {
2777 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2778 });
2779
2780 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2781 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2782 let snapshot = this.buffer.read(cx).read(cx);
2783 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2784 .zip(new_selection_deltas)
2785 .map(|(selection, delta)| Selection {
2786 id: selection.id,
2787 start: selection.start + delta,
2788 end: selection.end + delta,
2789 reversed: selection.reversed,
2790 goal: SelectionGoal::None,
2791 })
2792 .collect::<Vec<_>>();
2793
2794 let mut i = 0;
2795 for (position, delta, selection_id, pair) in new_autoclose_regions {
2796 let position = position.to_offset(&snapshot) + delta;
2797 let start = snapshot.anchor_before(position);
2798 let end = snapshot.anchor_after(position);
2799 while let Some(existing_state) = this.autoclose_regions.get(i) {
2800 match existing_state.range.start.cmp(&start, &snapshot) {
2801 Ordering::Less => i += 1,
2802 Ordering::Greater => break,
2803 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2804 Ordering::Less => i += 1,
2805 Ordering::Equal => break,
2806 Ordering::Greater => break,
2807 },
2808 }
2809 }
2810 this.autoclose_regions.insert(
2811 i,
2812 AutocloseRegion {
2813 selection_id,
2814 range: start..end,
2815 pair,
2816 },
2817 );
2818 }
2819
2820 drop(snapshot);
2821 let had_active_inline_completion = this.has_active_inline_completion(cx);
2822 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2823
2824 if brace_inserted {
2825 // If we inserted a brace while composing text (i.e. typing `"` on a
2826 // Brazilian keyboard), exit the composing state because most likely
2827 // the user wanted to surround the selection.
2828 this.unmark_text(cx);
2829 } else if EditorSettings::get_global(cx).use_on_type_format {
2830 if let Some(on_type_format_task) =
2831 this.trigger_on_type_formatting(text.to_string(), cx)
2832 {
2833 on_type_format_task.detach_and_log_err(cx);
2834 }
2835 }
2836
2837 let trigger_in_words = !had_active_inline_completion;
2838 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2839 this.refresh_inline_completion(true, cx);
2840 });
2841 }
2842
2843 fn find_possible_emoji_shortcode_at_position(
2844 snapshot: &MultiBufferSnapshot,
2845 position: Point,
2846 ) -> Option<String> {
2847 let mut chars = Vec::new();
2848 let mut found_colon = false;
2849 for char in snapshot.reversed_chars_at(position).take(100) {
2850 // Found a possible emoji shortcode in the middle of the buffer
2851 if found_colon {
2852 if char.is_whitespace() {
2853 chars.reverse();
2854 return Some(chars.iter().collect());
2855 }
2856 // If the previous character is not a whitespace, we are in the middle of a word
2857 // and we only want to complete the shortcode if the word is made up of other emojis
2858 let mut containing_word = String::new();
2859 for ch in snapshot
2860 .reversed_chars_at(position)
2861 .skip(chars.len() + 1)
2862 .take(100)
2863 {
2864 if ch.is_whitespace() {
2865 break;
2866 }
2867 containing_word.push(ch);
2868 }
2869 let containing_word = containing_word.chars().rev().collect::<String>();
2870 if util::word_consists_of_emojis(containing_word.as_str()) {
2871 chars.reverse();
2872 return Some(chars.iter().collect());
2873 }
2874 }
2875
2876 if char.is_whitespace() || !char.is_ascii() {
2877 return None;
2878 }
2879 if char == ':' {
2880 found_colon = true;
2881 } else {
2882 chars.push(char);
2883 }
2884 }
2885 // Found a possible emoji shortcode at the beginning of the buffer
2886 chars.reverse();
2887 Some(chars.iter().collect())
2888 }
2889
2890 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2891 self.transact(cx, |this, cx| {
2892 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2893 let selections = this.selections.all::<usize>(cx);
2894 let multi_buffer = this.buffer.read(cx);
2895 let buffer = multi_buffer.snapshot(cx);
2896 selections
2897 .iter()
2898 .map(|selection| {
2899 let start_point = selection.start.to_point(&buffer);
2900 let mut indent = buffer.indent_size_for_line(start_point.row);
2901 indent.len = cmp::min(indent.len, start_point.column);
2902 let start = selection.start;
2903 let end = selection.end;
2904 let selection_is_empty = start == end;
2905 let language_scope = buffer.language_scope_at(start);
2906 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2907 &language_scope
2908 {
2909 let leading_whitespace_len = buffer
2910 .reversed_chars_at(start)
2911 .take_while(|c| c.is_whitespace() && *c != '\n')
2912 .map(|c| c.len_utf8())
2913 .sum::<usize>();
2914
2915 let trailing_whitespace_len = buffer
2916 .chars_at(end)
2917 .take_while(|c| c.is_whitespace() && *c != '\n')
2918 .map(|c| c.len_utf8())
2919 .sum::<usize>();
2920
2921 let insert_extra_newline =
2922 language.brackets().any(|(pair, enabled)| {
2923 let pair_start = pair.start.trim_end();
2924 let pair_end = pair.end.trim_start();
2925
2926 enabled
2927 && pair.newline
2928 && buffer.contains_str_at(
2929 end + trailing_whitespace_len,
2930 pair_end,
2931 )
2932 && buffer.contains_str_at(
2933 (start - leading_whitespace_len)
2934 .saturating_sub(pair_start.len()),
2935 pair_start,
2936 )
2937 });
2938
2939 // Comment extension on newline is allowed only for cursor selections
2940 let comment_delimiter = maybe!({
2941 if !selection_is_empty {
2942 return None;
2943 }
2944
2945 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2946 return None;
2947 }
2948
2949 let delimiters = language.line_comment_prefixes();
2950 let max_len_of_delimiter =
2951 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2952 let (snapshot, range) =
2953 buffer.buffer_line_for_row(start_point.row)?;
2954
2955 let mut index_of_first_non_whitespace = 0;
2956 let comment_candidate = snapshot
2957 .chars_for_range(range)
2958 .skip_while(|c| {
2959 let should_skip = c.is_whitespace();
2960 if should_skip {
2961 index_of_first_non_whitespace += 1;
2962 }
2963 should_skip
2964 })
2965 .take(max_len_of_delimiter)
2966 .collect::<String>();
2967 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2968 comment_candidate.starts_with(comment_prefix.as_ref())
2969 })?;
2970 let cursor_is_placed_after_comment_marker =
2971 index_of_first_non_whitespace + comment_prefix.len()
2972 <= start_point.column as usize;
2973 if cursor_is_placed_after_comment_marker {
2974 Some(comment_prefix.clone())
2975 } else {
2976 None
2977 }
2978 });
2979 (comment_delimiter, insert_extra_newline)
2980 } else {
2981 (None, false)
2982 };
2983
2984 let capacity_for_delimiter = comment_delimiter
2985 .as_deref()
2986 .map(str::len)
2987 .unwrap_or_default();
2988 let mut new_text =
2989 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2990 new_text.push_str("\n");
2991 new_text.extend(indent.chars());
2992 if let Some(delimiter) = &comment_delimiter {
2993 new_text.push_str(&delimiter);
2994 }
2995 if insert_extra_newline {
2996 new_text = new_text.repeat(2);
2997 }
2998
2999 let anchor = buffer.anchor_after(end);
3000 let new_selection = selection.map(|_| anchor);
3001 (
3002 (start..end, new_text),
3003 (insert_extra_newline, new_selection),
3004 )
3005 })
3006 .unzip()
3007 };
3008
3009 this.edit_with_autoindent(edits, cx);
3010 let buffer = this.buffer.read(cx).snapshot(cx);
3011 let new_selections = selection_fixup_info
3012 .into_iter()
3013 .map(|(extra_newline_inserted, new_selection)| {
3014 let mut cursor = new_selection.end.to_point(&buffer);
3015 if extra_newline_inserted {
3016 cursor.row -= 1;
3017 cursor.column = buffer.line_len(cursor.row);
3018 }
3019 new_selection.map(|_| cursor)
3020 })
3021 .collect();
3022
3023 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3024 this.refresh_inline_completion(true, cx);
3025 });
3026 }
3027
3028 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3029 let buffer = self.buffer.read(cx);
3030 let snapshot = buffer.snapshot(cx);
3031
3032 let mut edits = Vec::new();
3033 let mut rows = Vec::new();
3034
3035 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3036 let cursor = selection.head();
3037 let row = cursor.row;
3038
3039 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3040
3041 let newline = "\n".to_string();
3042 edits.push((start_of_line..start_of_line, newline));
3043
3044 rows.push(row + rows_inserted as u32);
3045 }
3046
3047 self.transact(cx, |editor, cx| {
3048 editor.edit(edits, cx);
3049
3050 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3051 let mut index = 0;
3052 s.move_cursors_with(|map, _, _| {
3053 let row = rows[index];
3054 index += 1;
3055
3056 let point = Point::new(row, 0);
3057 let boundary = map.next_line_boundary(point).1;
3058 let clipped = map.clip_point(boundary, Bias::Left);
3059
3060 (clipped, SelectionGoal::None)
3061 });
3062 });
3063
3064 let mut indent_edits = Vec::new();
3065 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3066 for row in rows {
3067 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3068 for (row, indent) in indents {
3069 if indent.len == 0 {
3070 continue;
3071 }
3072
3073 let text = match indent.kind {
3074 IndentKind::Space => " ".repeat(indent.len as usize),
3075 IndentKind::Tab => "\t".repeat(indent.len as usize),
3076 };
3077 let point = Point::new(row, 0);
3078 indent_edits.push((point..point, text));
3079 }
3080 }
3081 editor.edit(indent_edits, cx);
3082 });
3083 }
3084
3085 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3086 let buffer = self.buffer.read(cx);
3087 let snapshot = buffer.snapshot(cx);
3088
3089 let mut edits = Vec::new();
3090 let mut rows = Vec::new();
3091 let mut rows_inserted = 0;
3092
3093 for selection in self.selections.all_adjusted(cx) {
3094 let cursor = selection.head();
3095 let row = cursor.row;
3096
3097 let point = Point::new(row + 1, 0);
3098 let start_of_line = snapshot.clip_point(point, Bias::Left);
3099
3100 let newline = "\n".to_string();
3101 edits.push((start_of_line..start_of_line, newline));
3102
3103 rows_inserted += 1;
3104 rows.push(row + rows_inserted);
3105 }
3106
3107 self.transact(cx, |editor, cx| {
3108 editor.edit(edits, cx);
3109
3110 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3111 let mut index = 0;
3112 s.move_cursors_with(|map, _, _| {
3113 let row = rows[index];
3114 index += 1;
3115
3116 let point = Point::new(row, 0);
3117 let boundary = map.next_line_boundary(point).1;
3118 let clipped = map.clip_point(boundary, Bias::Left);
3119
3120 (clipped, SelectionGoal::None)
3121 });
3122 });
3123
3124 let mut indent_edits = Vec::new();
3125 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3126 for row in rows {
3127 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3128 for (row, indent) in indents {
3129 if indent.len == 0 {
3130 continue;
3131 }
3132
3133 let text = match indent.kind {
3134 IndentKind::Space => " ".repeat(indent.len as usize),
3135 IndentKind::Tab => "\t".repeat(indent.len as usize),
3136 };
3137 let point = Point::new(row, 0);
3138 indent_edits.push((point..point, text));
3139 }
3140 }
3141 editor.edit(indent_edits, cx);
3142 });
3143 }
3144
3145 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3146 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3147 original_indent_columns: Vec::new(),
3148 });
3149 self.insert_with_autoindent_mode(text, autoindent, cx);
3150 }
3151
3152 fn insert_with_autoindent_mode(
3153 &mut self,
3154 text: &str,
3155 autoindent_mode: Option<AutoindentMode>,
3156 cx: &mut ViewContext<Self>,
3157 ) {
3158 if self.read_only(cx) {
3159 return;
3160 }
3161
3162 let text: Arc<str> = text.into();
3163 self.transact(cx, |this, cx| {
3164 let old_selections = this.selections.all_adjusted(cx);
3165 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3166 let anchors = {
3167 let snapshot = buffer.read(cx);
3168 old_selections
3169 .iter()
3170 .map(|s| {
3171 let anchor = snapshot.anchor_after(s.head());
3172 s.map(|_| anchor)
3173 })
3174 .collect::<Vec<_>>()
3175 };
3176 buffer.edit(
3177 old_selections
3178 .iter()
3179 .map(|s| (s.start..s.end, text.clone())),
3180 autoindent_mode,
3181 cx,
3182 );
3183 anchors
3184 });
3185
3186 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3187 s.select_anchors(selection_anchors);
3188 })
3189 });
3190 }
3191
3192 fn trigger_completion_on_input(
3193 &mut self,
3194 text: &str,
3195 trigger_in_words: bool,
3196 cx: &mut ViewContext<Self>,
3197 ) {
3198 if !EditorSettings::get_global(cx).show_completions_on_input {
3199 return;
3200 }
3201
3202 let selection = self.selections.newest_anchor();
3203 if self
3204 .buffer
3205 .read(cx)
3206 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3207 {
3208 self.show_completions(&ShowCompletions, cx);
3209 } else {
3210 self.hide_context_menu(cx);
3211 }
3212 }
3213
3214 /// If any empty selections is touching the start of its innermost containing autoclose
3215 /// region, expand it to select the brackets.
3216 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3217 let selections = self.selections.all::<usize>(cx);
3218 let buffer = self.buffer.read(cx).read(cx);
3219 let new_selections = self
3220 .selections_with_autoclose_regions(selections, &buffer)
3221 .map(|(mut selection, region)| {
3222 if !selection.is_empty() {
3223 return selection;
3224 }
3225
3226 if let Some(region) = region {
3227 let mut range = region.range.to_offset(&buffer);
3228 if selection.start == range.start && range.start >= region.pair.start.len() {
3229 range.start -= region.pair.start.len();
3230 if buffer.contains_str_at(range.start, ®ion.pair.start)
3231 && buffer.contains_str_at(range.end, ®ion.pair.end)
3232 {
3233 range.end += region.pair.end.len();
3234 selection.start = range.start;
3235 selection.end = range.end;
3236
3237 return selection;
3238 }
3239 }
3240 }
3241
3242 let always_treat_brackets_as_autoclosed = buffer
3243 .settings_at(selection.start, cx)
3244 .always_treat_brackets_as_autoclosed;
3245
3246 if !always_treat_brackets_as_autoclosed {
3247 return selection;
3248 }
3249
3250 if let Some(scope) = buffer.language_scope_at(selection.start) {
3251 for (pair, enabled) in scope.brackets() {
3252 if !enabled || !pair.close {
3253 continue;
3254 }
3255
3256 if buffer.contains_str_at(selection.start, &pair.end) {
3257 let pair_start_len = pair.start.len();
3258 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3259 {
3260 selection.start -= pair_start_len;
3261 selection.end += pair.end.len();
3262
3263 return selection;
3264 }
3265 }
3266 }
3267 }
3268
3269 selection
3270 })
3271 .collect();
3272
3273 drop(buffer);
3274 self.change_selections(None, cx, |selections| selections.select(new_selections));
3275 }
3276
3277 /// Iterate the given selections, and for each one, find the smallest surrounding
3278 /// autoclose region. This uses the ordering of the selections and the autoclose
3279 /// regions to avoid repeated comparisons.
3280 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3281 &'a self,
3282 selections: impl IntoIterator<Item = Selection<D>>,
3283 buffer: &'a MultiBufferSnapshot,
3284 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3285 let mut i = 0;
3286 let mut regions = self.autoclose_regions.as_slice();
3287 selections.into_iter().map(move |selection| {
3288 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3289
3290 let mut enclosing = None;
3291 while let Some(pair_state) = regions.get(i) {
3292 if pair_state.range.end.to_offset(buffer) < range.start {
3293 regions = ®ions[i + 1..];
3294 i = 0;
3295 } else if pair_state.range.start.to_offset(buffer) > range.end {
3296 break;
3297 } else {
3298 if pair_state.selection_id == selection.id {
3299 enclosing = Some(pair_state);
3300 }
3301 i += 1;
3302 }
3303 }
3304
3305 (selection.clone(), enclosing)
3306 })
3307 }
3308
3309 /// Remove any autoclose regions that no longer contain their selection.
3310 fn invalidate_autoclose_regions(
3311 &mut self,
3312 mut selections: &[Selection<Anchor>],
3313 buffer: &MultiBufferSnapshot,
3314 ) {
3315 self.autoclose_regions.retain(|state| {
3316 let mut i = 0;
3317 while let Some(selection) = selections.get(i) {
3318 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3319 selections = &selections[1..];
3320 continue;
3321 }
3322 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3323 break;
3324 }
3325 if selection.id == state.selection_id {
3326 return true;
3327 } else {
3328 i += 1;
3329 }
3330 }
3331 false
3332 });
3333 }
3334
3335 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3336 let offset = position.to_offset(buffer);
3337 let (word_range, kind) = buffer.surrounding_word(offset);
3338 if offset > word_range.start && kind == Some(CharKind::Word) {
3339 Some(
3340 buffer
3341 .text_for_range(word_range.start..offset)
3342 .collect::<String>(),
3343 )
3344 } else {
3345 None
3346 }
3347 }
3348
3349 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3350 self.refresh_inlay_hints(
3351 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3352 cx,
3353 );
3354 }
3355
3356 pub fn inlay_hints_enabled(&self) -> bool {
3357 self.inlay_hint_cache.enabled
3358 }
3359
3360 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3361 if self.project.is_none() || self.mode != EditorMode::Full {
3362 return;
3363 }
3364
3365 let reason_description = reason.description();
3366 let ignore_debounce = matches!(
3367 reason,
3368 InlayHintRefreshReason::SettingsChange(_)
3369 | InlayHintRefreshReason::Toggle(_)
3370 | InlayHintRefreshReason::ExcerptsRemoved(_)
3371 );
3372 let (invalidate_cache, required_languages) = match reason {
3373 InlayHintRefreshReason::Toggle(enabled) => {
3374 self.inlay_hint_cache.enabled = enabled;
3375 if enabled {
3376 (InvalidationStrategy::RefreshRequested, None)
3377 } else {
3378 self.inlay_hint_cache.clear();
3379 self.splice_inlays(
3380 self.visible_inlay_hints(cx)
3381 .iter()
3382 .map(|inlay| inlay.id)
3383 .collect(),
3384 Vec::new(),
3385 cx,
3386 );
3387 return;
3388 }
3389 }
3390 InlayHintRefreshReason::SettingsChange(new_settings) => {
3391 match self.inlay_hint_cache.update_settings(
3392 &self.buffer,
3393 new_settings,
3394 self.visible_inlay_hints(cx),
3395 cx,
3396 ) {
3397 ControlFlow::Break(Some(InlaySplice {
3398 to_remove,
3399 to_insert,
3400 })) => {
3401 self.splice_inlays(to_remove, to_insert, cx);
3402 return;
3403 }
3404 ControlFlow::Break(None) => return,
3405 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3406 }
3407 }
3408 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3409 if let Some(InlaySplice {
3410 to_remove,
3411 to_insert,
3412 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3413 {
3414 self.splice_inlays(to_remove, to_insert, cx);
3415 }
3416 return;
3417 }
3418 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3419 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3420 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3421 }
3422 InlayHintRefreshReason::RefreshRequested => {
3423 (InvalidationStrategy::RefreshRequested, None)
3424 }
3425 };
3426
3427 if let Some(InlaySplice {
3428 to_remove,
3429 to_insert,
3430 }) = self.inlay_hint_cache.spawn_hint_refresh(
3431 reason_description,
3432 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3433 invalidate_cache,
3434 ignore_debounce,
3435 cx,
3436 ) {
3437 self.splice_inlays(to_remove, to_insert, cx);
3438 }
3439 }
3440
3441 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3442 self.display_map
3443 .read(cx)
3444 .current_inlays()
3445 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3446 .cloned()
3447 .collect()
3448 }
3449
3450 pub fn excerpts_for_inlay_hints_query(
3451 &self,
3452 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3453 cx: &mut ViewContext<Editor>,
3454 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3455 let Some(project) = self.project.as_ref() else {
3456 return HashMap::default();
3457 };
3458 let project = project.read(cx);
3459 let multi_buffer = self.buffer().read(cx);
3460 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3461 let multi_buffer_visible_start = self
3462 .scroll_manager
3463 .anchor()
3464 .anchor
3465 .to_point(&multi_buffer_snapshot);
3466 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3467 multi_buffer_visible_start
3468 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3469 Bias::Left,
3470 );
3471 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3472 multi_buffer
3473 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3474 .into_iter()
3475 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3476 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3477 let buffer = buffer_handle.read(cx);
3478 let buffer_file = project::File::from_dyn(buffer.file())?;
3479 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3480 let worktree_entry = buffer_worktree
3481 .read(cx)
3482 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3483 if worktree_entry.is_ignored {
3484 return None;
3485 }
3486
3487 let language = buffer.language()?;
3488 if let Some(restrict_to_languages) = restrict_to_languages {
3489 if !restrict_to_languages.contains(language) {
3490 return None;
3491 }
3492 }
3493 Some((
3494 excerpt_id,
3495 (
3496 buffer_handle,
3497 buffer.version().clone(),
3498 excerpt_visible_range,
3499 ),
3500 ))
3501 })
3502 .collect()
3503 }
3504
3505 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3506 TextLayoutDetails {
3507 text_system: cx.text_system().clone(),
3508 editor_style: self.style.clone().unwrap(),
3509 rem_size: cx.rem_size(),
3510 scroll_anchor: self.scroll_manager.anchor(),
3511 visible_rows: self.visible_line_count(),
3512 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3513 }
3514 }
3515
3516 fn splice_inlays(
3517 &self,
3518 to_remove: Vec<InlayId>,
3519 to_insert: Vec<Inlay>,
3520 cx: &mut ViewContext<Self>,
3521 ) {
3522 self.display_map.update(cx, |display_map, cx| {
3523 display_map.splice_inlays(to_remove, to_insert, cx);
3524 });
3525 cx.notify();
3526 }
3527
3528 fn trigger_on_type_formatting(
3529 &self,
3530 input: String,
3531 cx: &mut ViewContext<Self>,
3532 ) -> Option<Task<Result<()>>> {
3533 if input.len() != 1 {
3534 return None;
3535 }
3536
3537 let project = self.project.as_ref()?;
3538 let position = self.selections.newest_anchor().head();
3539 let (buffer, buffer_position) = self
3540 .buffer
3541 .read(cx)
3542 .text_anchor_for_position(position, cx)?;
3543
3544 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3545 // hence we do LSP request & edit on host side only — add formats to host's history.
3546 let push_to_lsp_host_history = true;
3547 // If this is not the host, append its history with new edits.
3548 let push_to_client_history = project.read(cx).is_remote();
3549
3550 let on_type_formatting = project.update(cx, |project, cx| {
3551 project.on_type_format(
3552 buffer.clone(),
3553 buffer_position,
3554 input,
3555 push_to_lsp_host_history,
3556 cx,
3557 )
3558 });
3559 Some(cx.spawn(|editor, mut cx| async move {
3560 if let Some(transaction) = on_type_formatting.await? {
3561 if push_to_client_history {
3562 buffer
3563 .update(&mut cx, |buffer, _| {
3564 buffer.push_transaction(transaction, Instant::now());
3565 })
3566 .ok();
3567 }
3568 editor.update(&mut cx, |editor, cx| {
3569 editor.refresh_document_highlights(cx);
3570 })?;
3571 }
3572 Ok(())
3573 }))
3574 }
3575
3576 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3577 if self.pending_rename.is_some() {
3578 return;
3579 }
3580
3581 let Some(provider) = self.completion_provider.as_ref() else {
3582 return;
3583 };
3584
3585 let position = self.selections.newest_anchor().head();
3586 let (buffer, buffer_position) =
3587 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3588 output
3589 } else {
3590 return;
3591 };
3592
3593 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3594 let completions = provider.completions(&buffer, buffer_position, cx);
3595
3596 let id = post_inc(&mut self.next_completion_id);
3597 let task = cx.spawn(|this, mut cx| {
3598 async move {
3599 let completions = completions.await.log_err();
3600 let menu = if let Some(completions) = completions {
3601 let mut menu = CompletionsMenu {
3602 id,
3603 initial_position: position,
3604 match_candidates: completions
3605 .iter()
3606 .enumerate()
3607 .map(|(id, completion)| {
3608 StringMatchCandidate::new(
3609 id,
3610 completion.label.text[completion.label.filter_range.clone()]
3611 .into(),
3612 )
3613 })
3614 .collect(),
3615 buffer: buffer.clone(),
3616 completions: Arc::new(RwLock::new(completions.into())),
3617 matches: Vec::new().into(),
3618 selected_item: 0,
3619 scroll_handle: UniformListScrollHandle::new(),
3620 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3621 DebouncedDelay::new(),
3622 )),
3623 };
3624 menu.filter(query.as_deref(), cx.background_executor().clone())
3625 .await;
3626
3627 if menu.matches.is_empty() {
3628 None
3629 } else {
3630 this.update(&mut cx, |editor, cx| {
3631 let completions = menu.completions.clone();
3632 let matches = menu.matches.clone();
3633
3634 let delay_ms = EditorSettings::get_global(cx)
3635 .completion_documentation_secondary_query_debounce;
3636 let delay = Duration::from_millis(delay_ms);
3637
3638 editor
3639 .completion_documentation_pre_resolve_debounce
3640 .fire_new(delay, cx, |editor, cx| {
3641 CompletionsMenu::pre_resolve_completion_documentation(
3642 buffer,
3643 completions,
3644 matches,
3645 editor,
3646 cx,
3647 )
3648 });
3649 })
3650 .ok();
3651 Some(menu)
3652 }
3653 } else {
3654 None
3655 };
3656
3657 this.update(&mut cx, |this, cx| {
3658 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3659
3660 let mut context_menu = this.context_menu.write();
3661 match context_menu.as_ref() {
3662 None => {}
3663
3664 Some(ContextMenu::Completions(prev_menu)) => {
3665 if prev_menu.id > id {
3666 return;
3667 }
3668 }
3669
3670 _ => return,
3671 }
3672
3673 if this.focus_handle.is_focused(cx) && menu.is_some() {
3674 let menu = menu.unwrap();
3675 *context_menu = Some(ContextMenu::Completions(menu));
3676 drop(context_menu);
3677 this.discard_inline_completion(cx);
3678 cx.notify();
3679 } else if this.completion_tasks.len() <= 1 {
3680 // If there are no more completion tasks and the last menu was
3681 // empty, we should hide it. If it was already hidden, we should
3682 // also show the copilot completion when available.
3683 drop(context_menu);
3684 if this.hide_context_menu(cx).is_none() {
3685 this.update_visible_inline_completion(cx);
3686 }
3687 }
3688 })?;
3689
3690 Ok::<_, anyhow::Error>(())
3691 }
3692 .log_err()
3693 });
3694
3695 self.completion_tasks.push((id, task));
3696 }
3697
3698 pub fn confirm_completion(
3699 &mut self,
3700 action: &ConfirmCompletion,
3701 cx: &mut ViewContext<Self>,
3702 ) -> Option<Task<Result<()>>> {
3703 use language::ToOffset as _;
3704
3705 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3706 menu
3707 } else {
3708 return None;
3709 };
3710
3711 let mat = completions_menu
3712 .matches
3713 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3714 let buffer_handle = completions_menu.buffer;
3715 let completions = completions_menu.completions.read();
3716 let completion = completions.get(mat.candidate_id)?;
3717 cx.stop_propagation();
3718
3719 let snippet;
3720 let text;
3721 if completion.is_snippet() {
3722 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3723 text = snippet.as_ref().unwrap().text.clone();
3724 } else {
3725 snippet = None;
3726 text = completion.new_text.clone();
3727 };
3728 let selections = self.selections.all::<usize>(cx);
3729 let buffer = buffer_handle.read(cx);
3730 let old_range = completion.old_range.to_offset(buffer);
3731 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3732
3733 let newest_selection = self.selections.newest_anchor();
3734 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3735 return None;
3736 }
3737
3738 let lookbehind = newest_selection
3739 .start
3740 .text_anchor
3741 .to_offset(buffer)
3742 .saturating_sub(old_range.start);
3743 let lookahead = old_range
3744 .end
3745 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3746 let mut common_prefix_len = old_text
3747 .bytes()
3748 .zip(text.bytes())
3749 .take_while(|(a, b)| a == b)
3750 .count();
3751
3752 let snapshot = self.buffer.read(cx).snapshot(cx);
3753 let mut range_to_replace: Option<Range<isize>> = None;
3754 let mut ranges = Vec::new();
3755 for selection in &selections {
3756 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3757 let start = selection.start.saturating_sub(lookbehind);
3758 let end = selection.end + lookahead;
3759 if selection.id == newest_selection.id {
3760 range_to_replace = Some(
3761 ((start + common_prefix_len) as isize - selection.start as isize)
3762 ..(end as isize - selection.start as isize),
3763 );
3764 }
3765 ranges.push(start + common_prefix_len..end);
3766 } else {
3767 common_prefix_len = 0;
3768 ranges.clear();
3769 ranges.extend(selections.iter().map(|s| {
3770 if s.id == newest_selection.id {
3771 range_to_replace = Some(
3772 old_range.start.to_offset_utf16(&snapshot).0 as isize
3773 - selection.start as isize
3774 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3775 - selection.start as isize,
3776 );
3777 old_range.clone()
3778 } else {
3779 s.start..s.end
3780 }
3781 }));
3782 break;
3783 }
3784 }
3785 let text = &text[common_prefix_len..];
3786
3787 cx.emit(EditorEvent::InputHandled {
3788 utf16_range_to_replace: range_to_replace,
3789 text: text.into(),
3790 });
3791
3792 self.transact(cx, |this, cx| {
3793 if let Some(mut snippet) = snippet {
3794 snippet.text = text.to_string();
3795 for tabstop in snippet.tabstops.iter_mut().flatten() {
3796 tabstop.start -= common_prefix_len as isize;
3797 tabstop.end -= common_prefix_len as isize;
3798 }
3799
3800 this.insert_snippet(&ranges, snippet, cx).log_err();
3801 } else {
3802 this.buffer.update(cx, |buffer, cx| {
3803 buffer.edit(
3804 ranges.iter().map(|range| (range.clone(), text)),
3805 this.autoindent_mode.clone(),
3806 cx,
3807 );
3808 });
3809 }
3810
3811 this.refresh_inline_completion(true, cx);
3812 });
3813
3814 let provider = self.completion_provider.as_ref()?;
3815 let apply_edits = provider.apply_additional_edits_for_completion(
3816 buffer_handle,
3817 completion.clone(),
3818 true,
3819 cx,
3820 );
3821 Some(cx.foreground_executor().spawn(async move {
3822 apply_edits.await?;
3823 Ok(())
3824 }))
3825 }
3826
3827 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3828 let mut context_menu = self.context_menu.write();
3829 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3830 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3831 // Toggle if we're selecting the same one
3832 *context_menu = None;
3833 cx.notify();
3834 return;
3835 } else {
3836 // Otherwise, clear it and start a new one
3837 *context_menu = None;
3838 cx.notify();
3839 }
3840 }
3841 drop(context_menu);
3842
3843 let deployed_from_indicator = action.deployed_from_indicator;
3844 let mut task = self.code_actions_task.take();
3845 let action = action.clone();
3846 cx.spawn(|this, mut cx| async move {
3847 while let Some(prev_task) = task {
3848 prev_task.await;
3849 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3850 }
3851
3852 let spawned_test_task = this.update(&mut cx, |this, cx| {
3853 if this.focus_handle.is_focused(cx) {
3854 let snapshot = this.snapshot(cx);
3855 let display_row = action.deployed_from_indicator.unwrap_or_else(|| {
3856 this.selections
3857 .newest::<Point>(cx)
3858 .head()
3859 .to_display_point(&snapshot.display_snapshot)
3860 .row()
3861 });
3862
3863 let buffer_point =
3864 DisplayPoint::new(display_row, 0).to_point(&snapshot.display_snapshot);
3865 let buffer_row = snapshot
3866 .buffer_snapshot
3867 .buffer_line_for_row(buffer_point.row)
3868 .map(|(_, Range { start, .. })| start);
3869 let tasks = this.tasks.get(&display_row).map(|t| Arc::new(t.to_owned()));
3870 let (location, code_actions) = this
3871 .available_code_actions
3872 .clone()
3873 .and_then(|(location, code_actions)| {
3874 let snapshot = location.buffer.read(cx).snapshot();
3875 let point_range = location.range.to_point(&snapshot);
3876 let point_range = point_range.start.row..=point_range.end.row;
3877 if buffer_row.map_or(false, |row| point_range.contains(&row.row)) {
3878 Some((location, code_actions))
3879 } else {
3880 None
3881 }
3882 })
3883 .unzip();
3884 if tasks.is_none() && code_actions.is_none() {
3885 return None;
3886 }
3887
3888 let buffer = location.map(|location| location.buffer).or_else(|| {
3889 let snapshot = this.snapshot(cx);
3890 let (buffer_snapshot, _) =
3891 snapshot.buffer_snapshot.buffer_line_for_row(display_row)?;
3892 let buffer_id = buffer_snapshot.remote_id();
3893 this.buffer().read(cx).buffer(buffer_id)
3894 });
3895 let Some(buffer) = buffer else {
3896 return None;
3897 };
3898 this.completion_tasks.clear();
3899 this.discard_inline_completion(cx);
3900 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3901 |(tasks, (workspace, _))| {
3902 if let Some(buffer_point) = buffer_row {
3903 let position = Point::new(buffer_point.row, tasks.column);
3904 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3905 let location = Location {
3906 buffer: buffer.clone(),
3907 range: range_start..range_start,
3908 };
3909 workspace
3910 .update(cx, |workspace, cx| {
3911 tasks::task_context_for_location(workspace, location, cx)
3912 })
3913 .ok()
3914 .flatten()
3915 } else {
3916 None
3917 }
3918 },
3919 );
3920 let tasks = tasks
3921 .zip(task_context.as_ref())
3922 .map(|(tasks, task_context)| {
3923 Arc::new(ResolvedTasks {
3924 templates: tasks
3925 .templates
3926 .iter()
3927 .filter_map(|(kind, template)| {
3928 template
3929 .resolve_task(&kind.to_id_base(), &task_context)
3930 .map(|task| (kind.clone(), task))
3931 })
3932 .collect(),
3933 position: Point::new(display_row, tasks.column),
3934 })
3935 });
3936 let spawn_straight_away = tasks
3937 .as_ref()
3938 .map_or(false, |tasks| tasks.templates.len() == 1)
3939 && code_actions
3940 .as_ref()
3941 .map_or(true, |actions| actions.is_empty());
3942 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3943 buffer,
3944 actions: CodeActionContents {
3945 tasks,
3946 actions: code_actions,
3947 },
3948 selected_item: Default::default(),
3949 scroll_handle: UniformListScrollHandle::default(),
3950 deployed_from_indicator,
3951 }));
3952 if spawn_straight_away {
3953 if let Some(task) =
3954 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3955 {
3956 cx.notify();
3957 return Some(task);
3958 }
3959 }
3960 cx.notify();
3961 }
3962 Some(Task::ready(Ok(())))
3963 })?;
3964 if let Some(task) = spawned_test_task {
3965 task.await?;
3966 }
3967
3968 Ok::<_, anyhow::Error>(())
3969 })
3970 .detach_and_log_err(cx);
3971 }
3972
3973 pub fn confirm_code_action(
3974 &mut self,
3975 action: &ConfirmCodeAction,
3976 cx: &mut ViewContext<Self>,
3977 ) -> Option<Task<Result<()>>> {
3978 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3979 menu
3980 } else {
3981 return None;
3982 };
3983 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3984 let action = actions_menu.actions.get(action_ix)?;
3985 let title = action.label();
3986 let buffer = actions_menu.buffer;
3987 let workspace = self.workspace()?;
3988
3989 match action {
3990 CodeActionsItem::Task(task_source_kind, resolved_task) => {
3991 workspace.update(cx, |workspace, cx| {
3992 workspace::tasks::schedule_resolved_task(
3993 workspace,
3994 task_source_kind,
3995 resolved_task,
3996 false,
3997 cx,
3998 );
3999
4000 Some(Task::ready(Ok(())))
4001 })
4002 }
4003 CodeActionsItem::CodeAction(action) => {
4004 let apply_code_actions = workspace
4005 .read(cx)
4006 .project()
4007 .clone()
4008 .update(cx, |project, cx| {
4009 project.apply_code_action(buffer, action, true, cx)
4010 });
4011 let workspace = workspace.downgrade();
4012 Some(cx.spawn(|editor, cx| async move {
4013 let project_transaction = apply_code_actions.await?;
4014 Self::open_project_transaction(
4015 &editor,
4016 workspace,
4017 project_transaction,
4018 title,
4019 cx,
4020 )
4021 .await
4022 }))
4023 }
4024 }
4025 }
4026
4027 async fn open_project_transaction(
4028 this: &WeakView<Editor>,
4029 workspace: WeakView<Workspace>,
4030 transaction: ProjectTransaction,
4031 title: String,
4032 mut cx: AsyncWindowContext,
4033 ) -> Result<()> {
4034 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4035
4036 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4037 cx.update(|cx| {
4038 entries.sort_unstable_by_key(|(buffer, _)| {
4039 buffer.read(cx).file().map(|f| f.path().clone())
4040 });
4041 })?;
4042
4043 // If the project transaction's edits are all contained within this editor, then
4044 // avoid opening a new editor to display them.
4045
4046 if let Some((buffer, transaction)) = entries.first() {
4047 if entries.len() == 1 {
4048 let excerpt = this.update(&mut cx, |editor, cx| {
4049 editor
4050 .buffer()
4051 .read(cx)
4052 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4053 })?;
4054 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4055 if excerpted_buffer == *buffer {
4056 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4057 let excerpt_range = excerpt_range.to_offset(buffer);
4058 buffer
4059 .edited_ranges_for_transaction::<usize>(transaction)
4060 .all(|range| {
4061 excerpt_range.start <= range.start
4062 && excerpt_range.end >= range.end
4063 })
4064 })?;
4065
4066 if all_edits_within_excerpt {
4067 return Ok(());
4068 }
4069 }
4070 }
4071 }
4072 } else {
4073 return Ok(());
4074 }
4075
4076 let mut ranges_to_highlight = Vec::new();
4077 let excerpt_buffer = cx.new_model(|cx| {
4078 let mut multibuffer =
4079 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4080 for (buffer_handle, transaction) in &entries {
4081 let buffer = buffer_handle.read(cx);
4082 ranges_to_highlight.extend(
4083 multibuffer.push_excerpts_with_context_lines(
4084 buffer_handle.clone(),
4085 buffer
4086 .edited_ranges_for_transaction::<usize>(transaction)
4087 .collect(),
4088 DEFAULT_MULTIBUFFER_CONTEXT,
4089 cx,
4090 ),
4091 );
4092 }
4093 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4094 multibuffer
4095 })?;
4096
4097 workspace.update(&mut cx, |workspace, cx| {
4098 let project = workspace.project().clone();
4099 let editor =
4100 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4101 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4102 editor.update(cx, |editor, cx| {
4103 editor.highlight_background::<Self>(
4104 &ranges_to_highlight,
4105 |theme| theme.editor_highlighted_line_background,
4106 cx,
4107 );
4108 });
4109 })?;
4110
4111 Ok(())
4112 }
4113
4114 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4115 let project = self.project.clone()?;
4116 let buffer = self.buffer.read(cx);
4117 let newest_selection = self.selections.newest_anchor().clone();
4118 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4119 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4120 if start_buffer != end_buffer {
4121 return None;
4122 }
4123
4124 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4125 cx.background_executor()
4126 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4127 .await;
4128
4129 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4130 project.code_actions(&start_buffer, start..end, cx)
4131 }) {
4132 code_actions.await
4133 } else {
4134 Vec::new()
4135 };
4136
4137 this.update(&mut cx, |this, cx| {
4138 this.available_code_actions = if actions.is_empty() {
4139 None
4140 } else {
4141 Some((
4142 Location {
4143 buffer: start_buffer,
4144 range: start..end,
4145 },
4146 actions.into(),
4147 ))
4148 };
4149 cx.notify();
4150 })
4151 .log_err();
4152 }));
4153 None
4154 }
4155
4156 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4157 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4158 self.show_git_blame_inline = false;
4159
4160 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4161 cx.background_executor().timer(delay).await;
4162
4163 this.update(&mut cx, |this, cx| {
4164 this.show_git_blame_inline = true;
4165 cx.notify();
4166 })
4167 .log_err();
4168 }));
4169 }
4170 }
4171
4172 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4173 if self.pending_rename.is_some() {
4174 return None;
4175 }
4176
4177 let project = self.project.clone()?;
4178 let buffer = self.buffer.read(cx);
4179 let newest_selection = self.selections.newest_anchor().clone();
4180 let cursor_position = newest_selection.head();
4181 let (cursor_buffer, cursor_buffer_position) =
4182 buffer.text_anchor_for_position(cursor_position, cx)?;
4183 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4184 if cursor_buffer != tail_buffer {
4185 return None;
4186 }
4187
4188 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4189 cx.background_executor()
4190 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4191 .await;
4192
4193 let highlights = if let Some(highlights) = project
4194 .update(&mut cx, |project, cx| {
4195 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4196 })
4197 .log_err()
4198 {
4199 highlights.await.log_err()
4200 } else {
4201 None
4202 };
4203
4204 if let Some(highlights) = highlights {
4205 this.update(&mut cx, |this, cx| {
4206 if this.pending_rename.is_some() {
4207 return;
4208 }
4209
4210 let buffer_id = cursor_position.buffer_id;
4211 let buffer = this.buffer.read(cx);
4212 if !buffer
4213 .text_anchor_for_position(cursor_position, cx)
4214 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4215 {
4216 return;
4217 }
4218
4219 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4220 let mut write_ranges = Vec::new();
4221 let mut read_ranges = Vec::new();
4222 for highlight in highlights {
4223 for (excerpt_id, excerpt_range) in
4224 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4225 {
4226 let start = highlight
4227 .range
4228 .start
4229 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4230 let end = highlight
4231 .range
4232 .end
4233 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4234 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4235 continue;
4236 }
4237
4238 let range = Anchor {
4239 buffer_id,
4240 excerpt_id: excerpt_id,
4241 text_anchor: start,
4242 }..Anchor {
4243 buffer_id,
4244 excerpt_id,
4245 text_anchor: end,
4246 };
4247 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4248 write_ranges.push(range);
4249 } else {
4250 read_ranges.push(range);
4251 }
4252 }
4253 }
4254
4255 this.highlight_background::<DocumentHighlightRead>(
4256 &read_ranges,
4257 |theme| theme.editor_document_highlight_read_background,
4258 cx,
4259 );
4260 this.highlight_background::<DocumentHighlightWrite>(
4261 &write_ranges,
4262 |theme| theme.editor_document_highlight_write_background,
4263 cx,
4264 );
4265 cx.notify();
4266 })
4267 .log_err();
4268 }
4269 }));
4270 None
4271 }
4272
4273 fn refresh_inline_completion(
4274 &mut self,
4275 debounce: bool,
4276 cx: &mut ViewContext<Self>,
4277 ) -> Option<()> {
4278 let provider = self.inline_completion_provider()?;
4279 let cursor = self.selections.newest_anchor().head();
4280 let (buffer, cursor_buffer_position) =
4281 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4282 if !self.show_inline_completions
4283 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4284 {
4285 self.discard_inline_completion(cx);
4286 return None;
4287 }
4288
4289 self.update_visible_inline_completion(cx);
4290 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4291 Some(())
4292 }
4293
4294 fn cycle_inline_completion(
4295 &mut self,
4296 direction: Direction,
4297 cx: &mut ViewContext<Self>,
4298 ) -> Option<()> {
4299 let provider = self.inline_completion_provider()?;
4300 let cursor = self.selections.newest_anchor().head();
4301 let (buffer, cursor_buffer_position) =
4302 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4303 if !self.show_inline_completions
4304 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4305 {
4306 return None;
4307 }
4308
4309 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4310 self.update_visible_inline_completion(cx);
4311
4312 Some(())
4313 }
4314
4315 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4316 if !self.has_active_inline_completion(cx) {
4317 self.refresh_inline_completion(false, cx);
4318 return;
4319 }
4320
4321 self.update_visible_inline_completion(cx);
4322 }
4323
4324 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4325 self.show_cursor_names(cx);
4326 }
4327
4328 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4329 self.show_cursor_names = true;
4330 cx.notify();
4331 cx.spawn(|this, mut cx| async move {
4332 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4333 this.update(&mut cx, |this, cx| {
4334 this.show_cursor_names = false;
4335 cx.notify()
4336 })
4337 .ok()
4338 })
4339 .detach();
4340 }
4341
4342 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4343 if self.has_active_inline_completion(cx) {
4344 self.cycle_inline_completion(Direction::Next, cx);
4345 } else {
4346 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4347 if is_copilot_disabled {
4348 cx.propagate();
4349 }
4350 }
4351 }
4352
4353 pub fn previous_inline_completion(
4354 &mut self,
4355 _: &PreviousInlineCompletion,
4356 cx: &mut ViewContext<Self>,
4357 ) {
4358 if self.has_active_inline_completion(cx) {
4359 self.cycle_inline_completion(Direction::Prev, cx);
4360 } else {
4361 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4362 if is_copilot_disabled {
4363 cx.propagate();
4364 }
4365 }
4366 }
4367
4368 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4369 if let Some(completion) = self.take_active_inline_completion(cx) {
4370 if let Some(provider) = self.inline_completion_provider() {
4371 provider.accept(cx);
4372 }
4373
4374 cx.emit(EditorEvent::InputHandled {
4375 utf16_range_to_replace: None,
4376 text: completion.text.to_string().into(),
4377 });
4378 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4379 self.refresh_inline_completion(true, cx);
4380 cx.notify();
4381 true
4382 } else {
4383 false
4384 }
4385 }
4386
4387 pub fn accept_partial_inline_completion(
4388 &mut self,
4389 _: &AcceptPartialInlineCompletion,
4390 cx: &mut ViewContext<Self>,
4391 ) {
4392 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4393 if let Some(completion) = self.take_active_inline_completion(cx) {
4394 let mut partial_completion = completion
4395 .text
4396 .chars()
4397 .by_ref()
4398 .take_while(|c| c.is_alphabetic())
4399 .collect::<String>();
4400 if partial_completion.is_empty() {
4401 partial_completion = completion
4402 .text
4403 .chars()
4404 .by_ref()
4405 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4406 .collect::<String>();
4407 }
4408
4409 cx.emit(EditorEvent::InputHandled {
4410 utf16_range_to_replace: None,
4411 text: partial_completion.clone().into(),
4412 });
4413 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4414 self.refresh_inline_completion(true, cx);
4415 cx.notify();
4416 }
4417 }
4418 }
4419
4420 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4421 if let Some(provider) = self.inline_completion_provider() {
4422 provider.discard(cx);
4423 }
4424
4425 self.take_active_inline_completion(cx).is_some()
4426 }
4427
4428 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4429 if let Some(completion) = self.active_inline_completion.as_ref() {
4430 let buffer = self.buffer.read(cx).read(cx);
4431 completion.position.is_valid(&buffer)
4432 } else {
4433 false
4434 }
4435 }
4436
4437 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4438 let completion = self.active_inline_completion.take()?;
4439 self.display_map.update(cx, |map, cx| {
4440 map.splice_inlays(vec![completion.id], Default::default(), cx);
4441 });
4442 let buffer = self.buffer.read(cx).read(cx);
4443
4444 if completion.position.is_valid(&buffer) {
4445 Some(completion)
4446 } else {
4447 None
4448 }
4449 }
4450
4451 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4452 let selection = self.selections.newest_anchor();
4453 let cursor = selection.head();
4454
4455 if self.context_menu.read().is_none()
4456 && self.completion_tasks.is_empty()
4457 && selection.start == selection.end
4458 {
4459 if let Some(provider) = self.inline_completion_provider() {
4460 if let Some((buffer, cursor_buffer_position)) =
4461 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4462 {
4463 if let Some(text) =
4464 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4465 {
4466 let text = Rope::from(text);
4467 let mut to_remove = Vec::new();
4468 if let Some(completion) = self.active_inline_completion.take() {
4469 to_remove.push(completion.id);
4470 }
4471
4472 let completion_inlay =
4473 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4474 self.active_inline_completion = Some(completion_inlay.clone());
4475 self.display_map.update(cx, move |map, cx| {
4476 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4477 });
4478 cx.notify();
4479 return;
4480 }
4481 }
4482 }
4483 }
4484
4485 self.discard_inline_completion(cx);
4486 }
4487
4488 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4489 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4490 }
4491
4492 fn render_code_actions_indicator(
4493 &self,
4494 _style: &EditorStyle,
4495 row: u32,
4496 is_active: bool,
4497 cx: &mut ViewContext<Self>,
4498 ) -> Option<IconButton> {
4499 if self.available_code_actions.is_some() {
4500 Some(
4501 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4502 .icon_size(IconSize::XSmall)
4503 .size(ui::ButtonSize::None)
4504 .icon_color(Color::Muted)
4505 .selected(is_active)
4506 .on_click(cx.listener(move |editor, _e, cx| {
4507 editor.toggle_code_actions(
4508 &ToggleCodeActions {
4509 deployed_from_indicator: Some(row),
4510 },
4511 cx,
4512 );
4513 })),
4514 )
4515 } else {
4516 None
4517 }
4518 }
4519
4520 fn clear_tasks(&mut self) {
4521 self.tasks.clear()
4522 }
4523
4524 fn insert_tasks(&mut self, row: u32, tasks: RunnableTasks) {
4525 if let Some(_) = self.tasks.insert(row, tasks) {
4526 // This case should hopefully be rare, but just in case...
4527 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4528 }
4529 }
4530
4531 fn render_run_indicator(
4532 &self,
4533 _style: &EditorStyle,
4534 is_active: bool,
4535 row: u32,
4536 cx: &mut ViewContext<Self>,
4537 ) -> IconButton {
4538 IconButton::new("code_actions_indicator", ui::IconName::Play)
4539 .icon_size(IconSize::XSmall)
4540 .size(ui::ButtonSize::None)
4541 .icon_color(Color::Muted)
4542 .selected(is_active)
4543 .on_click(cx.listener(move |editor, _e, cx| {
4544 editor.toggle_code_actions(
4545 &ToggleCodeActions {
4546 deployed_from_indicator: Some(row),
4547 },
4548 cx,
4549 );
4550 }))
4551 }
4552
4553 pub fn render_fold_indicators(
4554 &mut self,
4555 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4556 _style: &EditorStyle,
4557 gutter_hovered: bool,
4558 _line_height: Pixels,
4559 _gutter_margin: Pixels,
4560 cx: &mut ViewContext<Self>,
4561 ) -> Vec<Option<AnyElement>> {
4562 fold_data
4563 .iter()
4564 .enumerate()
4565 .map(|(ix, fold_data)| {
4566 fold_data
4567 .map(|(fold_status, buffer_row, active)| {
4568 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4569 IconButton::new(ix, ui::IconName::ChevronDown)
4570 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4571 FoldStatus::Folded => {
4572 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4573 }
4574 FoldStatus::Foldable => {
4575 this.fold_at(&FoldAt { buffer_row }, cx);
4576 }
4577 }))
4578 .icon_color(ui::Color::Muted)
4579 .icon_size(ui::IconSize::Small)
4580 .selected(fold_status == FoldStatus::Folded)
4581 .selected_icon(ui::IconName::ChevronRight)
4582 .size(ui::ButtonSize::None)
4583 .into_any_element()
4584 })
4585 })
4586 .flatten()
4587 })
4588 .collect()
4589 }
4590
4591 pub fn context_menu_visible(&self) -> bool {
4592 self.context_menu
4593 .read()
4594 .as_ref()
4595 .map_or(false, |menu| menu.visible())
4596 }
4597
4598 fn render_context_menu(
4599 &self,
4600 cursor_position: DisplayPoint,
4601 style: &EditorStyle,
4602 max_height: Pixels,
4603 cx: &mut ViewContext<Editor>,
4604 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4605 self.context_menu.read().as_ref().map(|menu| {
4606 menu.render(
4607 cursor_position,
4608 style,
4609 max_height,
4610 self.workspace.as_ref().map(|(w, _)| w.clone()),
4611 cx,
4612 )
4613 })
4614 }
4615
4616 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4617 cx.notify();
4618 self.completion_tasks.clear();
4619 let context_menu = self.context_menu.write().take();
4620 if context_menu.is_some() {
4621 self.update_visible_inline_completion(cx);
4622 }
4623 context_menu
4624 }
4625
4626 pub fn insert_snippet(
4627 &mut self,
4628 insertion_ranges: &[Range<usize>],
4629 snippet: Snippet,
4630 cx: &mut ViewContext<Self>,
4631 ) -> Result<()> {
4632 let tabstops = self.buffer.update(cx, |buffer, cx| {
4633 let snippet_text: Arc<str> = snippet.text.clone().into();
4634 buffer.edit(
4635 insertion_ranges
4636 .iter()
4637 .cloned()
4638 .map(|range| (range, snippet_text.clone())),
4639 Some(AutoindentMode::EachLine),
4640 cx,
4641 );
4642
4643 let snapshot = &*buffer.read(cx);
4644 let snippet = &snippet;
4645 snippet
4646 .tabstops
4647 .iter()
4648 .map(|tabstop| {
4649 let mut tabstop_ranges = tabstop
4650 .iter()
4651 .flat_map(|tabstop_range| {
4652 let mut delta = 0_isize;
4653 insertion_ranges.iter().map(move |insertion_range| {
4654 let insertion_start = insertion_range.start as isize + delta;
4655 delta +=
4656 snippet.text.len() as isize - insertion_range.len() as isize;
4657
4658 let start = snapshot.anchor_before(
4659 (insertion_start + tabstop_range.start) as usize,
4660 );
4661 let end = snapshot
4662 .anchor_after((insertion_start + tabstop_range.end) as usize);
4663 start..end
4664 })
4665 })
4666 .collect::<Vec<_>>();
4667 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4668 tabstop_ranges
4669 })
4670 .collect::<Vec<_>>()
4671 });
4672
4673 if let Some(tabstop) = tabstops.first() {
4674 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4675 s.select_ranges(tabstop.iter().cloned());
4676 });
4677 self.snippet_stack.push(SnippetState {
4678 active_index: 0,
4679 ranges: tabstops,
4680 });
4681
4682 // Check whether the just-entered snippet ends with an auto-closable bracket.
4683 if self.autoclose_regions.is_empty() {
4684 let snapshot = self.buffer.read(cx).snapshot(cx);
4685 for selection in &mut self.selections.all::<Point>(cx) {
4686 let selection_head = selection.head();
4687 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4688 continue;
4689 };
4690
4691 let mut bracket_pair = None;
4692 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4693 let prev_chars = snapshot
4694 .reversed_chars_at(selection_head)
4695 .collect::<String>();
4696 for (pair, enabled) in scope.brackets() {
4697 if enabled
4698 && pair.close
4699 && prev_chars.starts_with(pair.start.as_str())
4700 && next_chars.starts_with(pair.end.as_str())
4701 {
4702 bracket_pair = Some(pair.clone());
4703 break;
4704 }
4705 }
4706 if let Some(pair) = bracket_pair {
4707 let start = snapshot.anchor_after(selection_head);
4708 let end = snapshot.anchor_after(selection_head);
4709 self.autoclose_regions.push(AutocloseRegion {
4710 selection_id: selection.id,
4711 range: start..end,
4712 pair,
4713 });
4714 }
4715 }
4716 }
4717 }
4718 Ok(())
4719 }
4720
4721 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4722 self.move_to_snippet_tabstop(Bias::Right, cx)
4723 }
4724
4725 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4726 self.move_to_snippet_tabstop(Bias::Left, cx)
4727 }
4728
4729 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4730 if let Some(mut snippet) = self.snippet_stack.pop() {
4731 match bias {
4732 Bias::Left => {
4733 if snippet.active_index > 0 {
4734 snippet.active_index -= 1;
4735 } else {
4736 self.snippet_stack.push(snippet);
4737 return false;
4738 }
4739 }
4740 Bias::Right => {
4741 if snippet.active_index + 1 < snippet.ranges.len() {
4742 snippet.active_index += 1;
4743 } else {
4744 self.snippet_stack.push(snippet);
4745 return false;
4746 }
4747 }
4748 }
4749 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4750 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4751 s.select_anchor_ranges(current_ranges.iter().cloned())
4752 });
4753 // If snippet state is not at the last tabstop, push it back on the stack
4754 if snippet.active_index + 1 < snippet.ranges.len() {
4755 self.snippet_stack.push(snippet);
4756 }
4757 return true;
4758 }
4759 }
4760
4761 false
4762 }
4763
4764 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4765 self.transact(cx, |this, cx| {
4766 this.select_all(&SelectAll, cx);
4767 this.insert("", cx);
4768 });
4769 }
4770
4771 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4772 self.transact(cx, |this, cx| {
4773 this.select_autoclose_pair(cx);
4774 let mut selections = this.selections.all::<Point>(cx);
4775 if !this.selections.line_mode {
4776 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4777 for selection in &mut selections {
4778 if selection.is_empty() {
4779 let old_head = selection.head();
4780 let mut new_head =
4781 movement::left(&display_map, old_head.to_display_point(&display_map))
4782 .to_point(&display_map);
4783 if let Some((buffer, line_buffer_range)) = display_map
4784 .buffer_snapshot
4785 .buffer_line_for_row(old_head.row)
4786 {
4787 let indent_size =
4788 buffer.indent_size_for_line(line_buffer_range.start.row);
4789 let indent_len = match indent_size.kind {
4790 IndentKind::Space => {
4791 buffer.settings_at(line_buffer_range.start, cx).tab_size
4792 }
4793 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4794 };
4795 if old_head.column <= indent_size.len && old_head.column > 0 {
4796 let indent_len = indent_len.get();
4797 new_head = cmp::min(
4798 new_head,
4799 Point::new(
4800 old_head.row,
4801 ((old_head.column - 1) / indent_len) * indent_len,
4802 ),
4803 );
4804 }
4805 }
4806
4807 selection.set_head(new_head, SelectionGoal::None);
4808 }
4809 }
4810 }
4811
4812 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4813 this.insert("", cx);
4814 this.refresh_inline_completion(true, cx);
4815 });
4816 }
4817
4818 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4819 self.transact(cx, |this, cx| {
4820 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4821 let line_mode = s.line_mode;
4822 s.move_with(|map, selection| {
4823 if selection.is_empty() && !line_mode {
4824 let cursor = movement::right(map, selection.head());
4825 selection.end = cursor;
4826 selection.reversed = true;
4827 selection.goal = SelectionGoal::None;
4828 }
4829 })
4830 });
4831 this.insert("", cx);
4832 this.refresh_inline_completion(true, cx);
4833 });
4834 }
4835
4836 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4837 if self.move_to_prev_snippet_tabstop(cx) {
4838 return;
4839 }
4840
4841 self.outdent(&Outdent, cx);
4842 }
4843
4844 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4845 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4846 return;
4847 }
4848
4849 let mut selections = self.selections.all_adjusted(cx);
4850 let buffer = self.buffer.read(cx);
4851 let snapshot = buffer.snapshot(cx);
4852 let rows_iter = selections.iter().map(|s| s.head().row);
4853 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4854
4855 let mut edits = Vec::new();
4856 let mut prev_edited_row = 0;
4857 let mut row_delta = 0;
4858 for selection in &mut selections {
4859 if selection.start.row != prev_edited_row {
4860 row_delta = 0;
4861 }
4862 prev_edited_row = selection.end.row;
4863
4864 // If the selection is non-empty, then increase the indentation of the selected lines.
4865 if !selection.is_empty() {
4866 row_delta =
4867 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4868 continue;
4869 }
4870
4871 // If the selection is empty and the cursor is in the leading whitespace before the
4872 // suggested indentation, then auto-indent the line.
4873 let cursor = selection.head();
4874 let current_indent = snapshot.indent_size_for_line(cursor.row);
4875 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4876 if cursor.column < suggested_indent.len
4877 && cursor.column <= current_indent.len
4878 && current_indent.len <= suggested_indent.len
4879 {
4880 selection.start = Point::new(cursor.row, suggested_indent.len);
4881 selection.end = selection.start;
4882 if row_delta == 0 {
4883 edits.extend(Buffer::edit_for_indent_size_adjustment(
4884 cursor.row,
4885 current_indent,
4886 suggested_indent,
4887 ));
4888 row_delta = suggested_indent.len - current_indent.len;
4889 }
4890 continue;
4891 }
4892 }
4893
4894 // Accept copilot completion if there is only one selection and the cursor is not
4895 // in the leading whitespace.
4896 if self.selections.count() == 1
4897 && cursor.column >= current_indent.len
4898 && self.has_active_inline_completion(cx)
4899 {
4900 self.accept_inline_completion(cx);
4901 return;
4902 }
4903
4904 // Otherwise, insert a hard or soft tab.
4905 let settings = buffer.settings_at(cursor, cx);
4906 let tab_size = if settings.hard_tabs {
4907 IndentSize::tab()
4908 } else {
4909 let tab_size = settings.tab_size.get();
4910 let char_column = snapshot
4911 .text_for_range(Point::new(cursor.row, 0)..cursor)
4912 .flat_map(str::chars)
4913 .count()
4914 + row_delta as usize;
4915 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4916 IndentSize::spaces(chars_to_next_tab_stop)
4917 };
4918 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4919 selection.end = selection.start;
4920 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4921 row_delta += tab_size.len;
4922 }
4923
4924 self.transact(cx, |this, cx| {
4925 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4926 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4927 this.refresh_inline_completion(true, cx);
4928 });
4929 }
4930
4931 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4932 if self.read_only(cx) {
4933 return;
4934 }
4935 let mut selections = self.selections.all::<Point>(cx);
4936 let mut prev_edited_row = 0;
4937 let mut row_delta = 0;
4938 let mut edits = Vec::new();
4939 let buffer = self.buffer.read(cx);
4940 let snapshot = buffer.snapshot(cx);
4941 for selection in &mut selections {
4942 if selection.start.row != prev_edited_row {
4943 row_delta = 0;
4944 }
4945 prev_edited_row = selection.end.row;
4946
4947 row_delta =
4948 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4949 }
4950
4951 self.transact(cx, |this, cx| {
4952 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4953 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4954 });
4955 }
4956
4957 fn indent_selection(
4958 buffer: &MultiBuffer,
4959 snapshot: &MultiBufferSnapshot,
4960 selection: &mut Selection<Point>,
4961 edits: &mut Vec<(Range<Point>, String)>,
4962 delta_for_start_row: u32,
4963 cx: &AppContext,
4964 ) -> u32 {
4965 let settings = buffer.settings_at(selection.start, cx);
4966 let tab_size = settings.tab_size.get();
4967 let indent_kind = if settings.hard_tabs {
4968 IndentKind::Tab
4969 } else {
4970 IndentKind::Space
4971 };
4972 let mut start_row = selection.start.row;
4973 let mut end_row = selection.end.row + 1;
4974
4975 // If a selection ends at the beginning of a line, don't indent
4976 // that last line.
4977 if selection.end.column == 0 && selection.end.row > selection.start.row {
4978 end_row -= 1;
4979 }
4980
4981 // Avoid re-indenting a row that has already been indented by a
4982 // previous selection, but still update this selection's column
4983 // to reflect that indentation.
4984 if delta_for_start_row > 0 {
4985 start_row += 1;
4986 selection.start.column += delta_for_start_row;
4987 if selection.end.row == selection.start.row {
4988 selection.end.column += delta_for_start_row;
4989 }
4990 }
4991
4992 let mut delta_for_end_row = 0;
4993 let has_multiple_rows = start_row + 1 != end_row;
4994 for row in start_row..end_row {
4995 let current_indent = snapshot.indent_size_for_line(row);
4996 let indent_delta = match (current_indent.kind, indent_kind) {
4997 (IndentKind::Space, IndentKind::Space) => {
4998 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4999 IndentSize::spaces(columns_to_next_tab_stop)
5000 }
5001 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5002 (_, IndentKind::Tab) => IndentSize::tab(),
5003 };
5004
5005 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5006 0
5007 } else {
5008 selection.start.column
5009 };
5010 let row_start = Point::new(row, start);
5011 edits.push((
5012 row_start..row_start,
5013 indent_delta.chars().collect::<String>(),
5014 ));
5015
5016 // Update this selection's endpoints to reflect the indentation.
5017 if row == selection.start.row {
5018 selection.start.column += indent_delta.len;
5019 }
5020 if row == selection.end.row {
5021 selection.end.column += indent_delta.len;
5022 delta_for_end_row = indent_delta.len;
5023 }
5024 }
5025
5026 if selection.start.row == selection.end.row {
5027 delta_for_start_row + delta_for_end_row
5028 } else {
5029 delta_for_end_row
5030 }
5031 }
5032
5033 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5034 if self.read_only(cx) {
5035 return;
5036 }
5037 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5038 let selections = self.selections.all::<Point>(cx);
5039 let mut deletion_ranges = Vec::new();
5040 let mut last_outdent = None;
5041 {
5042 let buffer = self.buffer.read(cx);
5043 let snapshot = buffer.snapshot(cx);
5044 for selection in &selections {
5045 let settings = buffer.settings_at(selection.start, cx);
5046 let tab_size = settings.tab_size.get();
5047 let mut rows = selection.spanned_rows(false, &display_map);
5048
5049 // Avoid re-outdenting a row that has already been outdented by a
5050 // previous selection.
5051 if let Some(last_row) = last_outdent {
5052 if last_row == rows.start {
5053 rows.start += 1;
5054 }
5055 }
5056 let has_multiple_rows = rows.len() > 1;
5057 for row in rows {
5058 let indent_size = snapshot.indent_size_for_line(row);
5059 if indent_size.len > 0 {
5060 let deletion_len = match indent_size.kind {
5061 IndentKind::Space => {
5062 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5063 if columns_to_prev_tab_stop == 0 {
5064 tab_size
5065 } else {
5066 columns_to_prev_tab_stop
5067 }
5068 }
5069 IndentKind::Tab => 1,
5070 };
5071 let start = if has_multiple_rows
5072 || deletion_len > selection.start.column
5073 || indent_size.len < selection.start.column
5074 {
5075 0
5076 } else {
5077 selection.start.column - deletion_len
5078 };
5079 deletion_ranges
5080 .push(Point::new(row, start)..Point::new(row, start + deletion_len));
5081 last_outdent = Some(row);
5082 }
5083 }
5084 }
5085 }
5086
5087 self.transact(cx, |this, cx| {
5088 this.buffer.update(cx, |buffer, cx| {
5089 let empty_str: Arc<str> = "".into();
5090 buffer.edit(
5091 deletion_ranges
5092 .into_iter()
5093 .map(|range| (range, empty_str.clone())),
5094 None,
5095 cx,
5096 );
5097 });
5098 let selections = this.selections.all::<usize>(cx);
5099 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5100 });
5101 }
5102
5103 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5104 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5105 let selections = self.selections.all::<Point>(cx);
5106
5107 let mut new_cursors = Vec::new();
5108 let mut edit_ranges = Vec::new();
5109 let mut selections = selections.iter().peekable();
5110 while let Some(selection) = selections.next() {
5111 let mut rows = selection.spanned_rows(false, &display_map);
5112 let goal_display_column = selection.head().to_display_point(&display_map).column();
5113
5114 // Accumulate contiguous regions of rows that we want to delete.
5115 while let Some(next_selection) = selections.peek() {
5116 let next_rows = next_selection.spanned_rows(false, &display_map);
5117 if next_rows.start <= rows.end {
5118 rows.end = next_rows.end;
5119 selections.next().unwrap();
5120 } else {
5121 break;
5122 }
5123 }
5124
5125 let buffer = &display_map.buffer_snapshot;
5126 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
5127 let edit_end;
5128 let cursor_buffer_row;
5129 if buffer.max_point().row >= rows.end {
5130 // If there's a line after the range, delete the \n from the end of the row range
5131 // and position the cursor on the next line.
5132 edit_end = Point::new(rows.end, 0).to_offset(buffer);
5133 cursor_buffer_row = rows.end;
5134 } else {
5135 // If there isn't a line after the range, delete the \n from the line before the
5136 // start of the row range and position the cursor there.
5137 edit_start = edit_start.saturating_sub(1);
5138 edit_end = buffer.len();
5139 cursor_buffer_row = rows.start.saturating_sub(1);
5140 }
5141
5142 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
5143 *cursor.column_mut() =
5144 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5145
5146 new_cursors.push((
5147 selection.id,
5148 buffer.anchor_after(cursor.to_point(&display_map)),
5149 ));
5150 edit_ranges.push(edit_start..edit_end);
5151 }
5152
5153 self.transact(cx, |this, cx| {
5154 let buffer = this.buffer.update(cx, |buffer, cx| {
5155 let empty_str: Arc<str> = "".into();
5156 buffer.edit(
5157 edit_ranges
5158 .into_iter()
5159 .map(|range| (range, empty_str.clone())),
5160 None,
5161 cx,
5162 );
5163 buffer.snapshot(cx)
5164 });
5165 let new_selections = new_cursors
5166 .into_iter()
5167 .map(|(id, cursor)| {
5168 let cursor = cursor.to_point(&buffer);
5169 Selection {
5170 id,
5171 start: cursor,
5172 end: cursor,
5173 reversed: false,
5174 goal: SelectionGoal::None,
5175 }
5176 })
5177 .collect();
5178
5179 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5180 s.select(new_selections);
5181 });
5182 });
5183 }
5184
5185 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5186 if self.read_only(cx) {
5187 return;
5188 }
5189 let mut row_ranges = Vec::<Range<u32>>::new();
5190 for selection in self.selections.all::<Point>(cx) {
5191 let start = selection.start.row;
5192 let end = if selection.start.row == selection.end.row {
5193 selection.start.row + 1
5194 } else {
5195 selection.end.row
5196 };
5197
5198 if let Some(last_row_range) = row_ranges.last_mut() {
5199 if start <= last_row_range.end {
5200 last_row_range.end = end;
5201 continue;
5202 }
5203 }
5204 row_ranges.push(start..end);
5205 }
5206
5207 let snapshot = self.buffer.read(cx).snapshot(cx);
5208 let mut cursor_positions = Vec::new();
5209 for row_range in &row_ranges {
5210 let anchor = snapshot.anchor_before(Point::new(
5211 row_range.end - 1,
5212 snapshot.line_len(row_range.end - 1),
5213 ));
5214 cursor_positions.push(anchor..anchor);
5215 }
5216
5217 self.transact(cx, |this, cx| {
5218 for row_range in row_ranges.into_iter().rev() {
5219 for row in row_range.rev() {
5220 let end_of_line = Point::new(row, snapshot.line_len(row));
5221 let indent = snapshot.indent_size_for_line(row + 1);
5222 let start_of_next_line = Point::new(row + 1, indent.len);
5223
5224 let replace = if snapshot.line_len(row + 1) > indent.len {
5225 " "
5226 } else {
5227 ""
5228 };
5229
5230 this.buffer.update(cx, |buffer, cx| {
5231 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5232 });
5233 }
5234 }
5235
5236 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5237 s.select_anchor_ranges(cursor_positions)
5238 });
5239 });
5240 }
5241
5242 pub fn sort_lines_case_sensitive(
5243 &mut self,
5244 _: &SortLinesCaseSensitive,
5245 cx: &mut ViewContext<Self>,
5246 ) {
5247 self.manipulate_lines(cx, |lines| lines.sort())
5248 }
5249
5250 pub fn sort_lines_case_insensitive(
5251 &mut self,
5252 _: &SortLinesCaseInsensitive,
5253 cx: &mut ViewContext<Self>,
5254 ) {
5255 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5256 }
5257
5258 pub fn unique_lines_case_insensitive(
5259 &mut self,
5260 _: &UniqueLinesCaseInsensitive,
5261 cx: &mut ViewContext<Self>,
5262 ) {
5263 self.manipulate_lines(cx, |lines| {
5264 let mut seen = HashSet::default();
5265 lines.retain(|line| seen.insert(line.to_lowercase()));
5266 })
5267 }
5268
5269 pub fn unique_lines_case_sensitive(
5270 &mut self,
5271 _: &UniqueLinesCaseSensitive,
5272 cx: &mut ViewContext<Self>,
5273 ) {
5274 self.manipulate_lines(cx, |lines| {
5275 let mut seen = HashSet::default();
5276 lines.retain(|line| seen.insert(*line));
5277 })
5278 }
5279
5280 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5281 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5282 if !revert_changes.is_empty() {
5283 self.transact(cx, |editor, cx| {
5284 editor.buffer().update(cx, |multi_buffer, cx| {
5285 for (buffer_id, changes) in revert_changes {
5286 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5287 buffer.update(cx, |buffer, cx| {
5288 buffer.edit(
5289 changes.into_iter().map(|(range, text)| {
5290 (range, text.to_string().map(Arc::<str>::from))
5291 }),
5292 None,
5293 cx,
5294 );
5295 });
5296 }
5297 }
5298 });
5299 editor.change_selections(None, cx, |selections| selections.refresh());
5300 });
5301 }
5302 }
5303
5304 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5305 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5306 let project_path = buffer.read(cx).project_path(cx)?;
5307 let project = self.project.as_ref()?.read(cx);
5308 let entry = project.entry_for_path(&project_path, cx)?;
5309 let abs_path = project.absolute_path(&project_path, cx)?;
5310 let parent = if entry.is_symlink {
5311 abs_path.canonicalize().ok()?
5312 } else {
5313 abs_path
5314 }
5315 .parent()?
5316 .to_path_buf();
5317 Some(parent)
5318 }) {
5319 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5320 }
5321 }
5322
5323 fn gather_revert_changes(
5324 &mut self,
5325 selections: &[Selection<Anchor>],
5326 cx: &mut ViewContext<'_, Editor>,
5327 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5328 let mut revert_changes = HashMap::default();
5329 self.buffer.update(cx, |multi_buffer, cx| {
5330 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5331 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5332 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5333 }
5334 });
5335 revert_changes
5336 }
5337
5338 fn prepare_revert_change(
5339 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5340 multi_buffer: &MultiBuffer,
5341 hunk: &DiffHunk<u32>,
5342 cx: &mut AppContext,
5343 ) -> Option<()> {
5344 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5345 let buffer = buffer.read(cx);
5346 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5347 let buffer_snapshot = buffer.snapshot();
5348 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5349 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5350 probe
5351 .0
5352 .start
5353 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5354 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5355 }) {
5356 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5357 Some(())
5358 } else {
5359 None
5360 }
5361 }
5362
5363 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5364 self.manipulate_lines(cx, |lines| lines.reverse())
5365 }
5366
5367 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5368 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5369 }
5370
5371 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5372 where
5373 Fn: FnMut(&mut Vec<&str>),
5374 {
5375 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5376 let buffer = self.buffer.read(cx).snapshot(cx);
5377
5378 let mut edits = Vec::new();
5379
5380 let selections = self.selections.all::<Point>(cx);
5381 let mut selections = selections.iter().peekable();
5382 let mut contiguous_row_selections = Vec::new();
5383 let mut new_selections = Vec::new();
5384 let mut added_lines = 0;
5385 let mut removed_lines = 0;
5386
5387 while let Some(selection) = selections.next() {
5388 let (start_row, end_row) = consume_contiguous_rows(
5389 &mut contiguous_row_selections,
5390 selection,
5391 &display_map,
5392 &mut selections,
5393 );
5394
5395 let start_point = Point::new(start_row, 0);
5396 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5397 let text = buffer
5398 .text_for_range(start_point..end_point)
5399 .collect::<String>();
5400
5401 let mut lines = text.split('\n').collect_vec();
5402
5403 let lines_before = lines.len();
5404 callback(&mut lines);
5405 let lines_after = lines.len();
5406
5407 edits.push((start_point..end_point, lines.join("\n")));
5408
5409 // Selections must change based on added and removed line count
5410 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5411 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5412 new_selections.push(Selection {
5413 id: selection.id,
5414 start: start_row,
5415 end: end_row,
5416 goal: SelectionGoal::None,
5417 reversed: selection.reversed,
5418 });
5419
5420 if lines_after > lines_before {
5421 added_lines += lines_after - lines_before;
5422 } else if lines_before > lines_after {
5423 removed_lines += lines_before - lines_after;
5424 }
5425 }
5426
5427 self.transact(cx, |this, cx| {
5428 let buffer = this.buffer.update(cx, |buffer, cx| {
5429 buffer.edit(edits, None, cx);
5430 buffer.snapshot(cx)
5431 });
5432
5433 // Recalculate offsets on newly edited buffer
5434 let new_selections = new_selections
5435 .iter()
5436 .map(|s| {
5437 let start_point = Point::new(s.start, 0);
5438 let end_point = Point::new(s.end, buffer.line_len(s.end));
5439 Selection {
5440 id: s.id,
5441 start: buffer.point_to_offset(start_point),
5442 end: buffer.point_to_offset(end_point),
5443 goal: s.goal,
5444 reversed: s.reversed,
5445 }
5446 })
5447 .collect();
5448
5449 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5450 s.select(new_selections);
5451 });
5452
5453 this.request_autoscroll(Autoscroll::fit(), cx);
5454 });
5455 }
5456
5457 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5458 self.manipulate_text(cx, |text| text.to_uppercase())
5459 }
5460
5461 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5462 self.manipulate_text(cx, |text| text.to_lowercase())
5463 }
5464
5465 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5466 self.manipulate_text(cx, |text| {
5467 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5468 // https://github.com/rutrum/convert-case/issues/16
5469 text.split('\n')
5470 .map(|line| line.to_case(Case::Title))
5471 .join("\n")
5472 })
5473 }
5474
5475 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5476 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5477 }
5478
5479 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5480 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5481 }
5482
5483 pub fn convert_to_upper_camel_case(
5484 &mut self,
5485 _: &ConvertToUpperCamelCase,
5486 cx: &mut ViewContext<Self>,
5487 ) {
5488 self.manipulate_text(cx, |text| {
5489 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5490 // https://github.com/rutrum/convert-case/issues/16
5491 text.split('\n')
5492 .map(|line| line.to_case(Case::UpperCamel))
5493 .join("\n")
5494 })
5495 }
5496
5497 pub fn convert_to_lower_camel_case(
5498 &mut self,
5499 _: &ConvertToLowerCamelCase,
5500 cx: &mut ViewContext<Self>,
5501 ) {
5502 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5503 }
5504
5505 pub fn convert_to_opposite_case(
5506 &mut self,
5507 _: &ConvertToOppositeCase,
5508 cx: &mut ViewContext<Self>,
5509 ) {
5510 self.manipulate_text(cx, |text| {
5511 text.chars()
5512 .fold(String::with_capacity(text.len()), |mut t, c| {
5513 if c.is_uppercase() {
5514 t.extend(c.to_lowercase());
5515 } else {
5516 t.extend(c.to_uppercase());
5517 }
5518 t
5519 })
5520 })
5521 }
5522
5523 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5524 where
5525 Fn: FnMut(&str) -> String,
5526 {
5527 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5528 let buffer = self.buffer.read(cx).snapshot(cx);
5529
5530 let mut new_selections = Vec::new();
5531 let mut edits = Vec::new();
5532 let mut selection_adjustment = 0i32;
5533
5534 for selection in self.selections.all::<usize>(cx) {
5535 let selection_is_empty = selection.is_empty();
5536
5537 let (start, end) = if selection_is_empty {
5538 let word_range = movement::surrounding_word(
5539 &display_map,
5540 selection.start.to_display_point(&display_map),
5541 );
5542 let start = word_range.start.to_offset(&display_map, Bias::Left);
5543 let end = word_range.end.to_offset(&display_map, Bias::Left);
5544 (start, end)
5545 } else {
5546 (selection.start, selection.end)
5547 };
5548
5549 let text = buffer.text_for_range(start..end).collect::<String>();
5550 let old_length = text.len() as i32;
5551 let text = callback(&text);
5552
5553 new_selections.push(Selection {
5554 start: (start as i32 - selection_adjustment) as usize,
5555 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5556 goal: SelectionGoal::None,
5557 ..selection
5558 });
5559
5560 selection_adjustment += old_length - text.len() as i32;
5561
5562 edits.push((start..end, text));
5563 }
5564
5565 self.transact(cx, |this, cx| {
5566 this.buffer.update(cx, |buffer, cx| {
5567 buffer.edit(edits, None, cx);
5568 });
5569
5570 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5571 s.select(new_selections);
5572 });
5573
5574 this.request_autoscroll(Autoscroll::fit(), cx);
5575 });
5576 }
5577
5578 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5579 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5580 let buffer = &display_map.buffer_snapshot;
5581 let selections = self.selections.all::<Point>(cx);
5582
5583 let mut edits = Vec::new();
5584 let mut selections_iter = selections.iter().peekable();
5585 while let Some(selection) = selections_iter.next() {
5586 // Avoid duplicating the same lines twice.
5587 let mut rows = selection.spanned_rows(false, &display_map);
5588
5589 while let Some(next_selection) = selections_iter.peek() {
5590 let next_rows = next_selection.spanned_rows(false, &display_map);
5591 if next_rows.start < rows.end {
5592 rows.end = next_rows.end;
5593 selections_iter.next().unwrap();
5594 } else {
5595 break;
5596 }
5597 }
5598
5599 // Copy the text from the selected row region and splice it either at the start
5600 // or end of the region.
5601 let start = Point::new(rows.start, 0);
5602 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5603 let text = buffer
5604 .text_for_range(start..end)
5605 .chain(Some("\n"))
5606 .collect::<String>();
5607 let insert_location = if upwards {
5608 Point::new(rows.end, 0)
5609 } else {
5610 start
5611 };
5612 edits.push((insert_location..insert_location, text));
5613 }
5614
5615 self.transact(cx, |this, cx| {
5616 this.buffer.update(cx, |buffer, cx| {
5617 buffer.edit(edits, None, cx);
5618 });
5619
5620 this.request_autoscroll(Autoscroll::fit(), cx);
5621 });
5622 }
5623
5624 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5625 self.duplicate_line(true, cx);
5626 }
5627
5628 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5629 self.duplicate_line(false, cx);
5630 }
5631
5632 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5633 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5634 let buffer = self.buffer.read(cx).snapshot(cx);
5635
5636 let mut edits = Vec::new();
5637 let mut unfold_ranges = Vec::new();
5638 let mut refold_ranges = Vec::new();
5639
5640 let selections = self.selections.all::<Point>(cx);
5641 let mut selections = selections.iter().peekable();
5642 let mut contiguous_row_selections = Vec::new();
5643 let mut new_selections = Vec::new();
5644
5645 while let Some(selection) = selections.next() {
5646 // Find all the selections that span a contiguous row range
5647 let (start_row, end_row) = consume_contiguous_rows(
5648 &mut contiguous_row_selections,
5649 selection,
5650 &display_map,
5651 &mut selections,
5652 );
5653
5654 // Move the text spanned by the row range to be before the line preceding the row range
5655 if start_row > 0 {
5656 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5657 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5658 let insertion_point = display_map
5659 .prev_line_boundary(Point::new(start_row - 1, 0))
5660 .0;
5661
5662 // Don't move lines across excerpts
5663 if buffer
5664 .excerpt_boundaries_in_range((
5665 Bound::Excluded(insertion_point),
5666 Bound::Included(range_to_move.end),
5667 ))
5668 .next()
5669 .is_none()
5670 {
5671 let text = buffer
5672 .text_for_range(range_to_move.clone())
5673 .flat_map(|s| s.chars())
5674 .skip(1)
5675 .chain(['\n'])
5676 .collect::<String>();
5677
5678 edits.push((
5679 buffer.anchor_after(range_to_move.start)
5680 ..buffer.anchor_before(range_to_move.end),
5681 String::new(),
5682 ));
5683 let insertion_anchor = buffer.anchor_after(insertion_point);
5684 edits.push((insertion_anchor..insertion_anchor, text));
5685
5686 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5687
5688 // Move selections up
5689 new_selections.extend(contiguous_row_selections.drain(..).map(
5690 |mut selection| {
5691 selection.start.row -= row_delta;
5692 selection.end.row -= row_delta;
5693 selection
5694 },
5695 ));
5696
5697 // Move folds up
5698 unfold_ranges.push(range_to_move.clone());
5699 for fold in display_map.folds_in_range(
5700 buffer.anchor_before(range_to_move.start)
5701 ..buffer.anchor_after(range_to_move.end),
5702 ) {
5703 let mut start = fold.range.start.to_point(&buffer);
5704 let mut end = fold.range.end.to_point(&buffer);
5705 start.row -= row_delta;
5706 end.row -= row_delta;
5707 refold_ranges.push(start..end);
5708 }
5709 }
5710 }
5711
5712 // If we didn't move line(s), preserve the existing selections
5713 new_selections.append(&mut contiguous_row_selections);
5714 }
5715
5716 self.transact(cx, |this, cx| {
5717 this.unfold_ranges(unfold_ranges, true, true, cx);
5718 this.buffer.update(cx, |buffer, cx| {
5719 for (range, text) in edits {
5720 buffer.edit([(range, text)], None, cx);
5721 }
5722 });
5723 this.fold_ranges(refold_ranges, true, cx);
5724 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5725 s.select(new_selections);
5726 })
5727 });
5728 }
5729
5730 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5731 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5732 let buffer = self.buffer.read(cx).snapshot(cx);
5733
5734 let mut edits = Vec::new();
5735 let mut unfold_ranges = Vec::new();
5736 let mut refold_ranges = Vec::new();
5737
5738 let selections = self.selections.all::<Point>(cx);
5739 let mut selections = selections.iter().peekable();
5740 let mut contiguous_row_selections = Vec::new();
5741 let mut new_selections = Vec::new();
5742
5743 while let Some(selection) = selections.next() {
5744 // Find all the selections that span a contiguous row range
5745 let (start_row, end_row) = consume_contiguous_rows(
5746 &mut contiguous_row_selections,
5747 selection,
5748 &display_map,
5749 &mut selections,
5750 );
5751
5752 // Move the text spanned by the row range to be after the last line of the row range
5753 if end_row <= buffer.max_point().row {
5754 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5755 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5756
5757 // Don't move lines across excerpt boundaries
5758 if buffer
5759 .excerpt_boundaries_in_range((
5760 Bound::Excluded(range_to_move.start),
5761 Bound::Included(insertion_point),
5762 ))
5763 .next()
5764 .is_none()
5765 {
5766 let mut text = String::from("\n");
5767 text.extend(buffer.text_for_range(range_to_move.clone()));
5768 text.pop(); // Drop trailing newline
5769 edits.push((
5770 buffer.anchor_after(range_to_move.start)
5771 ..buffer.anchor_before(range_to_move.end),
5772 String::new(),
5773 ));
5774 let insertion_anchor = buffer.anchor_after(insertion_point);
5775 edits.push((insertion_anchor..insertion_anchor, text));
5776
5777 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5778
5779 // Move selections down
5780 new_selections.extend(contiguous_row_selections.drain(..).map(
5781 |mut selection| {
5782 selection.start.row += row_delta;
5783 selection.end.row += row_delta;
5784 selection
5785 },
5786 ));
5787
5788 // Move folds down
5789 unfold_ranges.push(range_to_move.clone());
5790 for fold in display_map.folds_in_range(
5791 buffer.anchor_before(range_to_move.start)
5792 ..buffer.anchor_after(range_to_move.end),
5793 ) {
5794 let mut start = fold.range.start.to_point(&buffer);
5795 let mut end = fold.range.end.to_point(&buffer);
5796 start.row += row_delta;
5797 end.row += row_delta;
5798 refold_ranges.push(start..end);
5799 }
5800 }
5801 }
5802
5803 // If we didn't move line(s), preserve the existing selections
5804 new_selections.append(&mut contiguous_row_selections);
5805 }
5806
5807 self.transact(cx, |this, cx| {
5808 this.unfold_ranges(unfold_ranges, true, true, cx);
5809 this.buffer.update(cx, |buffer, cx| {
5810 for (range, text) in edits {
5811 buffer.edit([(range, text)], None, cx);
5812 }
5813 });
5814 this.fold_ranges(refold_ranges, true, cx);
5815 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5816 });
5817 }
5818
5819 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5820 let text_layout_details = &self.text_layout_details(cx);
5821 self.transact(cx, |this, cx| {
5822 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5823 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5824 let line_mode = s.line_mode;
5825 s.move_with(|display_map, selection| {
5826 if !selection.is_empty() || line_mode {
5827 return;
5828 }
5829
5830 let mut head = selection.head();
5831 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5832 if head.column() == display_map.line_len(head.row()) {
5833 transpose_offset = display_map
5834 .buffer_snapshot
5835 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5836 }
5837
5838 if transpose_offset == 0 {
5839 return;
5840 }
5841
5842 *head.column_mut() += 1;
5843 head = display_map.clip_point(head, Bias::Right);
5844 let goal = SelectionGoal::HorizontalPosition(
5845 display_map
5846 .x_for_display_point(head, &text_layout_details)
5847 .into(),
5848 );
5849 selection.collapse_to(head, goal);
5850
5851 let transpose_start = display_map
5852 .buffer_snapshot
5853 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5854 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5855 let transpose_end = display_map
5856 .buffer_snapshot
5857 .clip_offset(transpose_offset + 1, Bias::Right);
5858 if let Some(ch) =
5859 display_map.buffer_snapshot.chars_at(transpose_start).next()
5860 {
5861 edits.push((transpose_start..transpose_offset, String::new()));
5862 edits.push((transpose_end..transpose_end, ch.to_string()));
5863 }
5864 }
5865 });
5866 edits
5867 });
5868 this.buffer
5869 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5870 let selections = this.selections.all::<usize>(cx);
5871 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5872 s.select(selections);
5873 });
5874 });
5875 }
5876
5877 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5878 let mut text = String::new();
5879 let buffer = self.buffer.read(cx).snapshot(cx);
5880 let mut selections = self.selections.all::<Point>(cx);
5881 let mut clipboard_selections = Vec::with_capacity(selections.len());
5882 {
5883 let max_point = buffer.max_point();
5884 let mut is_first = true;
5885 for selection in &mut selections {
5886 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5887 if is_entire_line {
5888 selection.start = Point::new(selection.start.row, 0);
5889 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5890 selection.goal = SelectionGoal::None;
5891 }
5892 if is_first {
5893 is_first = false;
5894 } else {
5895 text += "\n";
5896 }
5897 let mut len = 0;
5898 for chunk in buffer.text_for_range(selection.start..selection.end) {
5899 text.push_str(chunk);
5900 len += chunk.len();
5901 }
5902 clipboard_selections.push(ClipboardSelection {
5903 len,
5904 is_entire_line,
5905 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5906 });
5907 }
5908 }
5909
5910 self.transact(cx, |this, cx| {
5911 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5912 s.select(selections);
5913 });
5914 this.insert("", cx);
5915 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5916 });
5917 }
5918
5919 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5920 let selections = self.selections.all::<Point>(cx);
5921 let buffer = self.buffer.read(cx).read(cx);
5922 let mut text = String::new();
5923
5924 let mut clipboard_selections = Vec::with_capacity(selections.len());
5925 {
5926 let max_point = buffer.max_point();
5927 let mut is_first = true;
5928 for selection in selections.iter() {
5929 let mut start = selection.start;
5930 let mut end = selection.end;
5931 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5932 if is_entire_line {
5933 start = Point::new(start.row, 0);
5934 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5935 }
5936 if is_first {
5937 is_first = false;
5938 } else {
5939 text += "\n";
5940 }
5941 let mut len = 0;
5942 for chunk in buffer.text_for_range(start..end) {
5943 text.push_str(chunk);
5944 len += chunk.len();
5945 }
5946 clipboard_selections.push(ClipboardSelection {
5947 len,
5948 is_entire_line,
5949 first_line_indent: buffer.indent_size_for_line(start.row).len,
5950 });
5951 }
5952 }
5953
5954 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5955 }
5956
5957 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5958 if self.read_only(cx) {
5959 return;
5960 }
5961
5962 self.transact(cx, |this, cx| {
5963 if let Some(item) = cx.read_from_clipboard() {
5964 let clipboard_text = Cow::Borrowed(item.text());
5965 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5966 let old_selections = this.selections.all::<usize>(cx);
5967 let all_selections_were_entire_line =
5968 clipboard_selections.iter().all(|s| s.is_entire_line);
5969 let first_selection_indent_column =
5970 clipboard_selections.first().map(|s| s.first_line_indent);
5971 if clipboard_selections.len() != old_selections.len() {
5972 clipboard_selections.drain(..);
5973 }
5974
5975 this.buffer.update(cx, |buffer, cx| {
5976 let snapshot = buffer.read(cx);
5977 let mut start_offset = 0;
5978 let mut edits = Vec::new();
5979 let mut original_indent_columns = Vec::new();
5980 let line_mode = this.selections.line_mode;
5981 for (ix, selection) in old_selections.iter().enumerate() {
5982 let to_insert;
5983 let entire_line;
5984 let original_indent_column;
5985 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5986 let end_offset = start_offset + clipboard_selection.len;
5987 to_insert = &clipboard_text[start_offset..end_offset];
5988 entire_line = clipboard_selection.is_entire_line;
5989 start_offset = end_offset + 1;
5990 original_indent_column =
5991 Some(clipboard_selection.first_line_indent);
5992 } else {
5993 to_insert = clipboard_text.as_str();
5994 entire_line = all_selections_were_entire_line;
5995 original_indent_column = first_selection_indent_column
5996 }
5997
5998 // If the corresponding selection was empty when this slice of the
5999 // clipboard text was written, then the entire line containing the
6000 // selection was copied. If this selection is also currently empty,
6001 // then paste the line before the current line of the buffer.
6002 let range = if selection.is_empty() && !line_mode && entire_line {
6003 let column = selection.start.to_point(&snapshot).column as usize;
6004 let line_start = selection.start - column;
6005 line_start..line_start
6006 } else {
6007 selection.range()
6008 };
6009
6010 edits.push((range, to_insert));
6011 original_indent_columns.extend(original_indent_column);
6012 }
6013 drop(snapshot);
6014
6015 buffer.edit(
6016 edits,
6017 Some(AutoindentMode::Block {
6018 original_indent_columns,
6019 }),
6020 cx,
6021 );
6022 });
6023
6024 let selections = this.selections.all::<usize>(cx);
6025 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6026 } else {
6027 this.insert(&clipboard_text, cx);
6028 }
6029 }
6030 });
6031 }
6032
6033 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6034 if self.read_only(cx) {
6035 return;
6036 }
6037
6038 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6039 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6040 self.change_selections(None, cx, |s| {
6041 s.select_anchors(selections.to_vec());
6042 });
6043 }
6044 self.request_autoscroll(Autoscroll::fit(), cx);
6045 self.unmark_text(cx);
6046 self.refresh_inline_completion(true, cx);
6047 cx.emit(EditorEvent::Edited);
6048 cx.emit(EditorEvent::TransactionUndone {
6049 transaction_id: tx_id,
6050 });
6051 }
6052 }
6053
6054 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6055 if self.read_only(cx) {
6056 return;
6057 }
6058
6059 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6060 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6061 {
6062 self.change_selections(None, cx, |s| {
6063 s.select_anchors(selections.to_vec());
6064 });
6065 }
6066 self.request_autoscroll(Autoscroll::fit(), cx);
6067 self.unmark_text(cx);
6068 self.refresh_inline_completion(true, cx);
6069 cx.emit(EditorEvent::Edited);
6070 }
6071 }
6072
6073 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6074 self.buffer
6075 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6076 }
6077
6078 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6079 self.buffer
6080 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6081 }
6082
6083 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6084 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6085 let line_mode = s.line_mode;
6086 s.move_with(|map, selection| {
6087 let cursor = if selection.is_empty() && !line_mode {
6088 movement::left(map, selection.start)
6089 } else {
6090 selection.start
6091 };
6092 selection.collapse_to(cursor, SelectionGoal::None);
6093 });
6094 })
6095 }
6096
6097 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6098 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6099 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6100 })
6101 }
6102
6103 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6104 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6105 let line_mode = s.line_mode;
6106 s.move_with(|map, selection| {
6107 let cursor = if selection.is_empty() && !line_mode {
6108 movement::right(map, selection.end)
6109 } else {
6110 selection.end
6111 };
6112 selection.collapse_to(cursor, SelectionGoal::None)
6113 });
6114 })
6115 }
6116
6117 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6118 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6119 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6120 })
6121 }
6122
6123 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6124 if self.take_rename(true, cx).is_some() {
6125 return;
6126 }
6127
6128 if matches!(self.mode, EditorMode::SingleLine) {
6129 cx.propagate();
6130 return;
6131 }
6132
6133 let text_layout_details = &self.text_layout_details(cx);
6134
6135 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6136 let line_mode = s.line_mode;
6137 s.move_with(|map, selection| {
6138 if !selection.is_empty() && !line_mode {
6139 selection.goal = SelectionGoal::None;
6140 }
6141 let (cursor, goal) = movement::up(
6142 map,
6143 selection.start,
6144 selection.goal,
6145 false,
6146 &text_layout_details,
6147 );
6148 selection.collapse_to(cursor, goal);
6149 });
6150 })
6151 }
6152
6153 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6154 if self.take_rename(true, cx).is_some() {
6155 return;
6156 }
6157
6158 if matches!(self.mode, EditorMode::SingleLine) {
6159 cx.propagate();
6160 return;
6161 }
6162
6163 let text_layout_details = &self.text_layout_details(cx);
6164
6165 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6166 let line_mode = s.line_mode;
6167 s.move_with(|map, selection| {
6168 if !selection.is_empty() && !line_mode {
6169 selection.goal = SelectionGoal::None;
6170 }
6171 let (cursor, goal) = movement::up_by_rows(
6172 map,
6173 selection.start,
6174 action.lines,
6175 selection.goal,
6176 false,
6177 &text_layout_details,
6178 );
6179 selection.collapse_to(cursor, goal);
6180 });
6181 })
6182 }
6183
6184 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6185 if self.take_rename(true, cx).is_some() {
6186 return;
6187 }
6188
6189 if matches!(self.mode, EditorMode::SingleLine) {
6190 cx.propagate();
6191 return;
6192 }
6193
6194 let text_layout_details = &self.text_layout_details(cx);
6195
6196 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6197 let line_mode = s.line_mode;
6198 s.move_with(|map, selection| {
6199 if !selection.is_empty() && !line_mode {
6200 selection.goal = SelectionGoal::None;
6201 }
6202 let (cursor, goal) = movement::down_by_rows(
6203 map,
6204 selection.start,
6205 action.lines,
6206 selection.goal,
6207 false,
6208 &text_layout_details,
6209 );
6210 selection.collapse_to(cursor, goal);
6211 });
6212 })
6213 }
6214
6215 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6216 let text_layout_details = &self.text_layout_details(cx);
6217 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6218 s.move_heads_with(|map, head, goal| {
6219 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6220 })
6221 })
6222 }
6223
6224 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6225 let text_layout_details = &self.text_layout_details(cx);
6226 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6227 s.move_heads_with(|map, head, goal| {
6228 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6229 })
6230 })
6231 }
6232
6233 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6234 if self.take_rename(true, cx).is_some() {
6235 return;
6236 }
6237
6238 if matches!(self.mode, EditorMode::SingleLine) {
6239 cx.propagate();
6240 return;
6241 }
6242
6243 let row_count = if let Some(row_count) = self.visible_line_count() {
6244 row_count as u32 - 1
6245 } else {
6246 return;
6247 };
6248
6249 let autoscroll = if action.center_cursor {
6250 Autoscroll::center()
6251 } else {
6252 Autoscroll::fit()
6253 };
6254
6255 let text_layout_details = &self.text_layout_details(cx);
6256
6257 self.change_selections(Some(autoscroll), cx, |s| {
6258 let line_mode = s.line_mode;
6259 s.move_with(|map, selection| {
6260 if !selection.is_empty() && !line_mode {
6261 selection.goal = SelectionGoal::None;
6262 }
6263 let (cursor, goal) = movement::up_by_rows(
6264 map,
6265 selection.end,
6266 row_count,
6267 selection.goal,
6268 false,
6269 &text_layout_details,
6270 );
6271 selection.collapse_to(cursor, goal);
6272 });
6273 });
6274 }
6275
6276 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6277 let text_layout_details = &self.text_layout_details(cx);
6278 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6279 s.move_heads_with(|map, head, goal| {
6280 movement::up(map, head, goal, false, &text_layout_details)
6281 })
6282 })
6283 }
6284
6285 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6286 self.take_rename(true, cx);
6287
6288 if self.mode == EditorMode::SingleLine {
6289 cx.propagate();
6290 return;
6291 }
6292
6293 let text_layout_details = &self.text_layout_details(cx);
6294 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6295 let line_mode = s.line_mode;
6296 s.move_with(|map, selection| {
6297 if !selection.is_empty() && !line_mode {
6298 selection.goal = SelectionGoal::None;
6299 }
6300 let (cursor, goal) = movement::down(
6301 map,
6302 selection.end,
6303 selection.goal,
6304 false,
6305 &text_layout_details,
6306 );
6307 selection.collapse_to(cursor, goal);
6308 });
6309 });
6310 }
6311
6312 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6313 if self.take_rename(true, cx).is_some() {
6314 return;
6315 }
6316
6317 if self
6318 .context_menu
6319 .write()
6320 .as_mut()
6321 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6322 .unwrap_or(false)
6323 {
6324 return;
6325 }
6326
6327 if matches!(self.mode, EditorMode::SingleLine) {
6328 cx.propagate();
6329 return;
6330 }
6331
6332 let row_count = if let Some(row_count) = self.visible_line_count() {
6333 row_count as u32 - 1
6334 } else {
6335 return;
6336 };
6337
6338 let autoscroll = if action.center_cursor {
6339 Autoscroll::center()
6340 } else {
6341 Autoscroll::fit()
6342 };
6343
6344 let text_layout_details = &self.text_layout_details(cx);
6345 self.change_selections(Some(autoscroll), cx, |s| {
6346 let line_mode = s.line_mode;
6347 s.move_with(|map, selection| {
6348 if !selection.is_empty() && !line_mode {
6349 selection.goal = SelectionGoal::None;
6350 }
6351 let (cursor, goal) = movement::down_by_rows(
6352 map,
6353 selection.end,
6354 row_count,
6355 selection.goal,
6356 false,
6357 &text_layout_details,
6358 );
6359 selection.collapse_to(cursor, goal);
6360 });
6361 });
6362 }
6363
6364 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6365 let text_layout_details = &self.text_layout_details(cx);
6366 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6367 s.move_heads_with(|map, head, goal| {
6368 movement::down(map, head, goal, false, &text_layout_details)
6369 })
6370 });
6371 }
6372
6373 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6374 if let Some(context_menu) = self.context_menu.write().as_mut() {
6375 context_menu.select_first(self.project.as_ref(), cx);
6376 }
6377 }
6378
6379 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6380 if let Some(context_menu) = self.context_menu.write().as_mut() {
6381 context_menu.select_prev(self.project.as_ref(), cx);
6382 }
6383 }
6384
6385 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6386 if let Some(context_menu) = self.context_menu.write().as_mut() {
6387 context_menu.select_next(self.project.as_ref(), cx);
6388 }
6389 }
6390
6391 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6392 if let Some(context_menu) = self.context_menu.write().as_mut() {
6393 context_menu.select_last(self.project.as_ref(), cx);
6394 }
6395 }
6396
6397 pub fn move_to_previous_word_start(
6398 &mut self,
6399 _: &MoveToPreviousWordStart,
6400 cx: &mut ViewContext<Self>,
6401 ) {
6402 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6403 s.move_cursors_with(|map, head, _| {
6404 (
6405 movement::previous_word_start(map, head),
6406 SelectionGoal::None,
6407 )
6408 });
6409 })
6410 }
6411
6412 pub fn move_to_previous_subword_start(
6413 &mut self,
6414 _: &MoveToPreviousSubwordStart,
6415 cx: &mut ViewContext<Self>,
6416 ) {
6417 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6418 s.move_cursors_with(|map, head, _| {
6419 (
6420 movement::previous_subword_start(map, head),
6421 SelectionGoal::None,
6422 )
6423 });
6424 })
6425 }
6426
6427 pub fn select_to_previous_word_start(
6428 &mut self,
6429 _: &SelectToPreviousWordStart,
6430 cx: &mut ViewContext<Self>,
6431 ) {
6432 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6433 s.move_heads_with(|map, head, _| {
6434 (
6435 movement::previous_word_start(map, head),
6436 SelectionGoal::None,
6437 )
6438 });
6439 })
6440 }
6441
6442 pub fn select_to_previous_subword_start(
6443 &mut self,
6444 _: &SelectToPreviousSubwordStart,
6445 cx: &mut ViewContext<Self>,
6446 ) {
6447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6448 s.move_heads_with(|map, head, _| {
6449 (
6450 movement::previous_subword_start(map, head),
6451 SelectionGoal::None,
6452 )
6453 });
6454 })
6455 }
6456
6457 pub fn delete_to_previous_word_start(
6458 &mut self,
6459 _: &DeleteToPreviousWordStart,
6460 cx: &mut ViewContext<Self>,
6461 ) {
6462 self.transact(cx, |this, cx| {
6463 this.select_autoclose_pair(cx);
6464 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6465 let line_mode = s.line_mode;
6466 s.move_with(|map, selection| {
6467 if selection.is_empty() && !line_mode {
6468 let cursor = movement::previous_word_start(map, selection.head());
6469 selection.set_head(cursor, SelectionGoal::None);
6470 }
6471 });
6472 });
6473 this.insert("", cx);
6474 });
6475 }
6476
6477 pub fn delete_to_previous_subword_start(
6478 &mut self,
6479 _: &DeleteToPreviousSubwordStart,
6480 cx: &mut ViewContext<Self>,
6481 ) {
6482 self.transact(cx, |this, cx| {
6483 this.select_autoclose_pair(cx);
6484 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6485 let line_mode = s.line_mode;
6486 s.move_with(|map, selection| {
6487 if selection.is_empty() && !line_mode {
6488 let cursor = movement::previous_subword_start(map, selection.head());
6489 selection.set_head(cursor, SelectionGoal::None);
6490 }
6491 });
6492 });
6493 this.insert("", cx);
6494 });
6495 }
6496
6497 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6498 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6499 s.move_cursors_with(|map, head, _| {
6500 (movement::next_word_end(map, head), SelectionGoal::None)
6501 });
6502 })
6503 }
6504
6505 pub fn move_to_next_subword_end(
6506 &mut self,
6507 _: &MoveToNextSubwordEnd,
6508 cx: &mut ViewContext<Self>,
6509 ) {
6510 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6511 s.move_cursors_with(|map, head, _| {
6512 (movement::next_subword_end(map, head), SelectionGoal::None)
6513 });
6514 })
6515 }
6516
6517 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6518 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6519 s.move_heads_with(|map, head, _| {
6520 (movement::next_word_end(map, head), SelectionGoal::None)
6521 });
6522 })
6523 }
6524
6525 pub fn select_to_next_subword_end(
6526 &mut self,
6527 _: &SelectToNextSubwordEnd,
6528 cx: &mut ViewContext<Self>,
6529 ) {
6530 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6531 s.move_heads_with(|map, head, _| {
6532 (movement::next_subword_end(map, head), SelectionGoal::None)
6533 });
6534 })
6535 }
6536
6537 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6538 self.transact(cx, |this, cx| {
6539 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6540 let line_mode = s.line_mode;
6541 s.move_with(|map, selection| {
6542 if selection.is_empty() && !line_mode {
6543 let cursor = movement::next_word_end(map, selection.head());
6544 selection.set_head(cursor, SelectionGoal::None);
6545 }
6546 });
6547 });
6548 this.insert("", cx);
6549 });
6550 }
6551
6552 pub fn delete_to_next_subword_end(
6553 &mut self,
6554 _: &DeleteToNextSubwordEnd,
6555 cx: &mut ViewContext<Self>,
6556 ) {
6557 self.transact(cx, |this, cx| {
6558 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6559 s.move_with(|map, selection| {
6560 if selection.is_empty() {
6561 let cursor = movement::next_subword_end(map, selection.head());
6562 selection.set_head(cursor, SelectionGoal::None);
6563 }
6564 });
6565 });
6566 this.insert("", cx);
6567 });
6568 }
6569
6570 pub fn move_to_beginning_of_line(
6571 &mut self,
6572 action: &MoveToBeginningOfLine,
6573 cx: &mut ViewContext<Self>,
6574 ) {
6575 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6576 s.move_cursors_with(|map, head, _| {
6577 (
6578 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6579 SelectionGoal::None,
6580 )
6581 });
6582 })
6583 }
6584
6585 pub fn select_to_beginning_of_line(
6586 &mut self,
6587 action: &SelectToBeginningOfLine,
6588 cx: &mut ViewContext<Self>,
6589 ) {
6590 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6591 s.move_heads_with(|map, head, _| {
6592 (
6593 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6594 SelectionGoal::None,
6595 )
6596 });
6597 });
6598 }
6599
6600 pub fn delete_to_beginning_of_line(
6601 &mut self,
6602 _: &DeleteToBeginningOfLine,
6603 cx: &mut ViewContext<Self>,
6604 ) {
6605 self.transact(cx, |this, cx| {
6606 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6607 s.move_with(|_, selection| {
6608 selection.reversed = true;
6609 });
6610 });
6611
6612 this.select_to_beginning_of_line(
6613 &SelectToBeginningOfLine {
6614 stop_at_soft_wraps: false,
6615 },
6616 cx,
6617 );
6618 this.backspace(&Backspace, cx);
6619 });
6620 }
6621
6622 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6623 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6624 s.move_cursors_with(|map, head, _| {
6625 (
6626 movement::line_end(map, head, action.stop_at_soft_wraps),
6627 SelectionGoal::None,
6628 )
6629 });
6630 })
6631 }
6632
6633 pub fn select_to_end_of_line(
6634 &mut self,
6635 action: &SelectToEndOfLine,
6636 cx: &mut ViewContext<Self>,
6637 ) {
6638 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6639 s.move_heads_with(|map, head, _| {
6640 (
6641 movement::line_end(map, head, action.stop_at_soft_wraps),
6642 SelectionGoal::None,
6643 )
6644 });
6645 })
6646 }
6647
6648 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6649 self.transact(cx, |this, cx| {
6650 this.select_to_end_of_line(
6651 &SelectToEndOfLine {
6652 stop_at_soft_wraps: false,
6653 },
6654 cx,
6655 );
6656 this.delete(&Delete, cx);
6657 });
6658 }
6659
6660 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6661 self.transact(cx, |this, cx| {
6662 this.select_to_end_of_line(
6663 &SelectToEndOfLine {
6664 stop_at_soft_wraps: false,
6665 },
6666 cx,
6667 );
6668 this.cut(&Cut, cx);
6669 });
6670 }
6671
6672 pub fn move_to_start_of_paragraph(
6673 &mut self,
6674 _: &MoveToStartOfParagraph,
6675 cx: &mut ViewContext<Self>,
6676 ) {
6677 if matches!(self.mode, EditorMode::SingleLine) {
6678 cx.propagate();
6679 return;
6680 }
6681
6682 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6683 s.move_with(|map, selection| {
6684 selection.collapse_to(
6685 movement::start_of_paragraph(map, selection.head(), 1),
6686 SelectionGoal::None,
6687 )
6688 });
6689 })
6690 }
6691
6692 pub fn move_to_end_of_paragraph(
6693 &mut self,
6694 _: &MoveToEndOfParagraph,
6695 cx: &mut ViewContext<Self>,
6696 ) {
6697 if matches!(self.mode, EditorMode::SingleLine) {
6698 cx.propagate();
6699 return;
6700 }
6701
6702 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6703 s.move_with(|map, selection| {
6704 selection.collapse_to(
6705 movement::end_of_paragraph(map, selection.head(), 1),
6706 SelectionGoal::None,
6707 )
6708 });
6709 })
6710 }
6711
6712 pub fn select_to_start_of_paragraph(
6713 &mut self,
6714 _: &SelectToStartOfParagraph,
6715 cx: &mut ViewContext<Self>,
6716 ) {
6717 if matches!(self.mode, EditorMode::SingleLine) {
6718 cx.propagate();
6719 return;
6720 }
6721
6722 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6723 s.move_heads_with(|map, head, _| {
6724 (
6725 movement::start_of_paragraph(map, head, 1),
6726 SelectionGoal::None,
6727 )
6728 });
6729 })
6730 }
6731
6732 pub fn select_to_end_of_paragraph(
6733 &mut self,
6734 _: &SelectToEndOfParagraph,
6735 cx: &mut ViewContext<Self>,
6736 ) {
6737 if matches!(self.mode, EditorMode::SingleLine) {
6738 cx.propagate();
6739 return;
6740 }
6741
6742 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6743 s.move_heads_with(|map, head, _| {
6744 (
6745 movement::end_of_paragraph(map, head, 1),
6746 SelectionGoal::None,
6747 )
6748 });
6749 })
6750 }
6751
6752 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6753 if matches!(self.mode, EditorMode::SingleLine) {
6754 cx.propagate();
6755 return;
6756 }
6757
6758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6759 s.select_ranges(vec![0..0]);
6760 });
6761 }
6762
6763 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6764 let mut selection = self.selections.last::<Point>(cx);
6765 selection.set_head(Point::zero(), SelectionGoal::None);
6766
6767 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6768 s.select(vec![selection]);
6769 });
6770 }
6771
6772 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6773 if matches!(self.mode, EditorMode::SingleLine) {
6774 cx.propagate();
6775 return;
6776 }
6777
6778 let cursor = self.buffer.read(cx).read(cx).len();
6779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6780 s.select_ranges(vec![cursor..cursor])
6781 });
6782 }
6783
6784 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6785 self.nav_history = nav_history;
6786 }
6787
6788 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6789 self.nav_history.as_ref()
6790 }
6791
6792 fn push_to_nav_history(
6793 &mut self,
6794 cursor_anchor: Anchor,
6795 new_position: Option<Point>,
6796 cx: &mut ViewContext<Self>,
6797 ) {
6798 if let Some(nav_history) = self.nav_history.as_mut() {
6799 let buffer = self.buffer.read(cx).read(cx);
6800 let cursor_position = cursor_anchor.to_point(&buffer);
6801 let scroll_state = self.scroll_manager.anchor();
6802 let scroll_top_row = scroll_state.top_row(&buffer);
6803 drop(buffer);
6804
6805 if let Some(new_position) = new_position {
6806 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6807 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6808 return;
6809 }
6810 }
6811
6812 nav_history.push(
6813 Some(NavigationData {
6814 cursor_anchor,
6815 cursor_position,
6816 scroll_anchor: scroll_state,
6817 scroll_top_row,
6818 }),
6819 cx,
6820 );
6821 }
6822 }
6823
6824 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6825 let buffer = self.buffer.read(cx).snapshot(cx);
6826 let mut selection = self.selections.first::<usize>(cx);
6827 selection.set_head(buffer.len(), SelectionGoal::None);
6828 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6829 s.select(vec![selection]);
6830 });
6831 }
6832
6833 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6834 let end = self.buffer.read(cx).read(cx).len();
6835 self.change_selections(None, cx, |s| {
6836 s.select_ranges(vec![0..end]);
6837 });
6838 }
6839
6840 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6841 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6842 let mut selections = self.selections.all::<Point>(cx);
6843 let max_point = display_map.buffer_snapshot.max_point();
6844 for selection in &mut selections {
6845 let rows = selection.spanned_rows(true, &display_map);
6846 selection.start = Point::new(rows.start, 0);
6847 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6848 selection.reversed = false;
6849 }
6850 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6851 s.select(selections);
6852 });
6853 }
6854
6855 pub fn split_selection_into_lines(
6856 &mut self,
6857 _: &SplitSelectionIntoLines,
6858 cx: &mut ViewContext<Self>,
6859 ) {
6860 let mut to_unfold = Vec::new();
6861 let mut new_selection_ranges = Vec::new();
6862 {
6863 let selections = self.selections.all::<Point>(cx);
6864 let buffer = self.buffer.read(cx).read(cx);
6865 for selection in selections {
6866 for row in selection.start.row..selection.end.row {
6867 let cursor = Point::new(row, buffer.line_len(row));
6868 new_selection_ranges.push(cursor..cursor);
6869 }
6870 new_selection_ranges.push(selection.end..selection.end);
6871 to_unfold.push(selection.start..selection.end);
6872 }
6873 }
6874 self.unfold_ranges(to_unfold, true, true, cx);
6875 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6876 s.select_ranges(new_selection_ranges);
6877 });
6878 }
6879
6880 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6881 self.add_selection(true, cx);
6882 }
6883
6884 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6885 self.add_selection(false, cx);
6886 }
6887
6888 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6889 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6890 let mut selections = self.selections.all::<Point>(cx);
6891 let text_layout_details = self.text_layout_details(cx);
6892 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6893 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6894 let range = oldest_selection.display_range(&display_map).sorted();
6895
6896 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6897 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6898 let positions = start_x.min(end_x)..start_x.max(end_x);
6899
6900 selections.clear();
6901 let mut stack = Vec::new();
6902 for row in range.start.row()..=range.end.row() {
6903 if let Some(selection) = self.selections.build_columnar_selection(
6904 &display_map,
6905 row,
6906 &positions,
6907 oldest_selection.reversed,
6908 &text_layout_details,
6909 ) {
6910 stack.push(selection.id);
6911 selections.push(selection);
6912 }
6913 }
6914
6915 if above {
6916 stack.reverse();
6917 }
6918
6919 AddSelectionsState { above, stack }
6920 });
6921
6922 let last_added_selection = *state.stack.last().unwrap();
6923 let mut new_selections = Vec::new();
6924 if above == state.above {
6925 let end_row = if above {
6926 0
6927 } else {
6928 display_map.max_point().row()
6929 };
6930
6931 'outer: for selection in selections {
6932 if selection.id == last_added_selection {
6933 let range = selection.display_range(&display_map).sorted();
6934 debug_assert_eq!(range.start.row(), range.end.row());
6935 let mut row = range.start.row();
6936 let positions =
6937 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6938 px(start)..px(end)
6939 } else {
6940 let start_x =
6941 display_map.x_for_display_point(range.start, &text_layout_details);
6942 let end_x =
6943 display_map.x_for_display_point(range.end, &text_layout_details);
6944 start_x.min(end_x)..start_x.max(end_x)
6945 };
6946
6947 while row != end_row {
6948 if above {
6949 row -= 1;
6950 } else {
6951 row += 1;
6952 }
6953
6954 if let Some(new_selection) = self.selections.build_columnar_selection(
6955 &display_map,
6956 row,
6957 &positions,
6958 selection.reversed,
6959 &text_layout_details,
6960 ) {
6961 state.stack.push(new_selection.id);
6962 if above {
6963 new_selections.push(new_selection);
6964 new_selections.push(selection);
6965 } else {
6966 new_selections.push(selection);
6967 new_selections.push(new_selection);
6968 }
6969
6970 continue 'outer;
6971 }
6972 }
6973 }
6974
6975 new_selections.push(selection);
6976 }
6977 } else {
6978 new_selections = selections;
6979 new_selections.retain(|s| s.id != last_added_selection);
6980 state.stack.pop();
6981 }
6982
6983 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6984 s.select(new_selections);
6985 });
6986 if state.stack.len() > 1 {
6987 self.add_selections_state = Some(state);
6988 }
6989 }
6990
6991 pub fn select_next_match_internal(
6992 &mut self,
6993 display_map: &DisplaySnapshot,
6994 replace_newest: bool,
6995 autoscroll: Option<Autoscroll>,
6996 cx: &mut ViewContext<Self>,
6997 ) -> Result<()> {
6998 fn select_next_match_ranges(
6999 this: &mut Editor,
7000 range: Range<usize>,
7001 replace_newest: bool,
7002 auto_scroll: Option<Autoscroll>,
7003 cx: &mut ViewContext<Editor>,
7004 ) {
7005 this.unfold_ranges([range.clone()], false, true, cx);
7006 this.change_selections(auto_scroll, cx, |s| {
7007 if replace_newest {
7008 s.delete(s.newest_anchor().id);
7009 }
7010 s.insert_range(range.clone());
7011 });
7012 }
7013
7014 let buffer = &display_map.buffer_snapshot;
7015 let mut selections = self.selections.all::<usize>(cx);
7016 if let Some(mut select_next_state) = self.select_next_state.take() {
7017 let query = &select_next_state.query;
7018 if !select_next_state.done {
7019 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7020 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7021 let mut next_selected_range = None;
7022
7023 let bytes_after_last_selection =
7024 buffer.bytes_in_range(last_selection.end..buffer.len());
7025 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7026 let query_matches = query
7027 .stream_find_iter(bytes_after_last_selection)
7028 .map(|result| (last_selection.end, result))
7029 .chain(
7030 query
7031 .stream_find_iter(bytes_before_first_selection)
7032 .map(|result| (0, result)),
7033 );
7034
7035 for (start_offset, query_match) in query_matches {
7036 let query_match = query_match.unwrap(); // can only fail due to I/O
7037 let offset_range =
7038 start_offset + query_match.start()..start_offset + query_match.end();
7039 let display_range = offset_range.start.to_display_point(&display_map)
7040 ..offset_range.end.to_display_point(&display_map);
7041
7042 if !select_next_state.wordwise
7043 || (!movement::is_inside_word(&display_map, display_range.start)
7044 && !movement::is_inside_word(&display_map, display_range.end))
7045 {
7046 // TODO: This is n^2, because we might check all the selections
7047 if !selections
7048 .iter()
7049 .any(|selection| selection.range().overlaps(&offset_range))
7050 {
7051 next_selected_range = Some(offset_range);
7052 break;
7053 }
7054 }
7055 }
7056
7057 if let Some(next_selected_range) = next_selected_range {
7058 select_next_match_ranges(
7059 self,
7060 next_selected_range,
7061 replace_newest,
7062 autoscroll,
7063 cx,
7064 );
7065 } else {
7066 select_next_state.done = true;
7067 }
7068 }
7069
7070 self.select_next_state = Some(select_next_state);
7071 } else {
7072 let mut only_carets = true;
7073 let mut same_text_selected = true;
7074 let mut selected_text = None;
7075
7076 let mut selections_iter = selections.iter().peekable();
7077 while let Some(selection) = selections_iter.next() {
7078 if selection.start != selection.end {
7079 only_carets = false;
7080 }
7081
7082 if same_text_selected {
7083 if selected_text.is_none() {
7084 selected_text =
7085 Some(buffer.text_for_range(selection.range()).collect::<String>());
7086 }
7087
7088 if let Some(next_selection) = selections_iter.peek() {
7089 if next_selection.range().len() == selection.range().len() {
7090 let next_selected_text = buffer
7091 .text_for_range(next_selection.range())
7092 .collect::<String>();
7093 if Some(next_selected_text) != selected_text {
7094 same_text_selected = false;
7095 selected_text = None;
7096 }
7097 } else {
7098 same_text_selected = false;
7099 selected_text = None;
7100 }
7101 }
7102 }
7103 }
7104
7105 if only_carets {
7106 for selection in &mut selections {
7107 let word_range = movement::surrounding_word(
7108 &display_map,
7109 selection.start.to_display_point(&display_map),
7110 );
7111 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7112 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7113 selection.goal = SelectionGoal::None;
7114 selection.reversed = false;
7115 select_next_match_ranges(
7116 self,
7117 selection.start..selection.end,
7118 replace_newest,
7119 autoscroll,
7120 cx,
7121 );
7122 }
7123
7124 if selections.len() == 1 {
7125 let selection = selections
7126 .last()
7127 .expect("ensured that there's only one selection");
7128 let query = buffer
7129 .text_for_range(selection.start..selection.end)
7130 .collect::<String>();
7131 let is_empty = query.is_empty();
7132 let select_state = SelectNextState {
7133 query: AhoCorasick::new(&[query])?,
7134 wordwise: true,
7135 done: is_empty,
7136 };
7137 self.select_next_state = Some(select_state);
7138 } else {
7139 self.select_next_state = None;
7140 }
7141 } else if let Some(selected_text) = selected_text {
7142 self.select_next_state = Some(SelectNextState {
7143 query: AhoCorasick::new(&[selected_text])?,
7144 wordwise: false,
7145 done: false,
7146 });
7147 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7148 }
7149 }
7150 Ok(())
7151 }
7152
7153 pub fn select_all_matches(
7154 &mut self,
7155 _action: &SelectAllMatches,
7156 cx: &mut ViewContext<Self>,
7157 ) -> Result<()> {
7158 self.push_to_selection_history();
7159 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7160
7161 self.select_next_match_internal(&display_map, false, None, cx)?;
7162 let Some(select_next_state) = self.select_next_state.as_mut() else {
7163 return Ok(());
7164 };
7165 if select_next_state.done {
7166 return Ok(());
7167 }
7168
7169 let mut new_selections = self.selections.all::<usize>(cx);
7170
7171 let buffer = &display_map.buffer_snapshot;
7172 let query_matches = select_next_state
7173 .query
7174 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7175
7176 for query_match in query_matches {
7177 let query_match = query_match.unwrap(); // can only fail due to I/O
7178 let offset_range = query_match.start()..query_match.end();
7179 let display_range = offset_range.start.to_display_point(&display_map)
7180 ..offset_range.end.to_display_point(&display_map);
7181
7182 if !select_next_state.wordwise
7183 || (!movement::is_inside_word(&display_map, display_range.start)
7184 && !movement::is_inside_word(&display_map, display_range.end))
7185 {
7186 self.selections.change_with(cx, |selections| {
7187 new_selections.push(Selection {
7188 id: selections.new_selection_id(),
7189 start: offset_range.start,
7190 end: offset_range.end,
7191 reversed: false,
7192 goal: SelectionGoal::None,
7193 });
7194 });
7195 }
7196 }
7197
7198 new_selections.sort_by_key(|selection| selection.start);
7199 let mut ix = 0;
7200 while ix + 1 < new_selections.len() {
7201 let current_selection = &new_selections[ix];
7202 let next_selection = &new_selections[ix + 1];
7203 if current_selection.range().overlaps(&next_selection.range()) {
7204 if current_selection.id < next_selection.id {
7205 new_selections.remove(ix + 1);
7206 } else {
7207 new_selections.remove(ix);
7208 }
7209 } else {
7210 ix += 1;
7211 }
7212 }
7213
7214 select_next_state.done = true;
7215 self.unfold_ranges(
7216 new_selections.iter().map(|selection| selection.range()),
7217 false,
7218 false,
7219 cx,
7220 );
7221 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7222 selections.select(new_selections)
7223 });
7224
7225 Ok(())
7226 }
7227
7228 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7229 self.push_to_selection_history();
7230 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7231 self.select_next_match_internal(
7232 &display_map,
7233 action.replace_newest,
7234 Some(Autoscroll::newest()),
7235 cx,
7236 )?;
7237 Ok(())
7238 }
7239
7240 pub fn select_previous(
7241 &mut self,
7242 action: &SelectPrevious,
7243 cx: &mut ViewContext<Self>,
7244 ) -> Result<()> {
7245 self.push_to_selection_history();
7246 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7247 let buffer = &display_map.buffer_snapshot;
7248 let mut selections = self.selections.all::<usize>(cx);
7249 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7250 let query = &select_prev_state.query;
7251 if !select_prev_state.done {
7252 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7253 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7254 let mut next_selected_range = None;
7255 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7256 let bytes_before_last_selection =
7257 buffer.reversed_bytes_in_range(0..last_selection.start);
7258 let bytes_after_first_selection =
7259 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7260 let query_matches = query
7261 .stream_find_iter(bytes_before_last_selection)
7262 .map(|result| (last_selection.start, result))
7263 .chain(
7264 query
7265 .stream_find_iter(bytes_after_first_selection)
7266 .map(|result| (buffer.len(), result)),
7267 );
7268 for (end_offset, query_match) in query_matches {
7269 let query_match = query_match.unwrap(); // can only fail due to I/O
7270 let offset_range =
7271 end_offset - query_match.end()..end_offset - query_match.start();
7272 let display_range = offset_range.start.to_display_point(&display_map)
7273 ..offset_range.end.to_display_point(&display_map);
7274
7275 if !select_prev_state.wordwise
7276 || (!movement::is_inside_word(&display_map, display_range.start)
7277 && !movement::is_inside_word(&display_map, display_range.end))
7278 {
7279 next_selected_range = Some(offset_range);
7280 break;
7281 }
7282 }
7283
7284 if let Some(next_selected_range) = next_selected_range {
7285 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7286 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7287 if action.replace_newest {
7288 s.delete(s.newest_anchor().id);
7289 }
7290 s.insert_range(next_selected_range);
7291 });
7292 } else {
7293 select_prev_state.done = true;
7294 }
7295 }
7296
7297 self.select_prev_state = Some(select_prev_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 }
7343 if selections.len() == 1 {
7344 let selection = selections
7345 .last()
7346 .expect("ensured that there's only one selection");
7347 let query = buffer
7348 .text_for_range(selection.start..selection.end)
7349 .collect::<String>();
7350 let is_empty = query.is_empty();
7351 let select_state = SelectNextState {
7352 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7353 wordwise: true,
7354 done: is_empty,
7355 };
7356 self.select_prev_state = Some(select_state);
7357 } else {
7358 self.select_prev_state = None;
7359 }
7360
7361 self.unfold_ranges(
7362 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7363 false,
7364 true,
7365 cx,
7366 );
7367 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7368 s.select(selections);
7369 });
7370 } else if let Some(selected_text) = selected_text {
7371 self.select_prev_state = Some(SelectNextState {
7372 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7373 wordwise: false,
7374 done: false,
7375 });
7376 self.select_previous(action, cx)?;
7377 }
7378 }
7379 Ok(())
7380 }
7381
7382 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7383 let text_layout_details = &self.text_layout_details(cx);
7384 self.transact(cx, |this, cx| {
7385 let mut selections = this.selections.all::<Point>(cx);
7386 let mut edits = Vec::new();
7387 let mut selection_edit_ranges = Vec::new();
7388 let mut last_toggled_row = None;
7389 let snapshot = this.buffer.read(cx).read(cx);
7390 let empty_str: Arc<str> = "".into();
7391 let mut suffixes_inserted = Vec::new();
7392
7393 fn comment_prefix_range(
7394 snapshot: &MultiBufferSnapshot,
7395 row: u32,
7396 comment_prefix: &str,
7397 comment_prefix_whitespace: &str,
7398 ) -> Range<Point> {
7399 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7400
7401 let mut line_bytes = snapshot
7402 .bytes_in_range(start..snapshot.max_point())
7403 .flatten()
7404 .copied();
7405
7406 // If this line currently begins with the line comment prefix, then record
7407 // the range containing the prefix.
7408 if line_bytes
7409 .by_ref()
7410 .take(comment_prefix.len())
7411 .eq(comment_prefix.bytes())
7412 {
7413 // Include any whitespace that matches the comment prefix.
7414 let matching_whitespace_len = line_bytes
7415 .zip(comment_prefix_whitespace.bytes())
7416 .take_while(|(a, b)| a == b)
7417 .count() as u32;
7418 let end = Point::new(
7419 start.row,
7420 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7421 );
7422 start..end
7423 } else {
7424 start..start
7425 }
7426 }
7427
7428 fn comment_suffix_range(
7429 snapshot: &MultiBufferSnapshot,
7430 row: u32,
7431 comment_suffix: &str,
7432 comment_suffix_has_leading_space: bool,
7433 ) -> Range<Point> {
7434 let end = Point::new(row, snapshot.line_len(row));
7435 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7436
7437 let mut line_end_bytes = snapshot
7438 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7439 .flatten()
7440 .copied();
7441
7442 let leading_space_len = if suffix_start_column > 0
7443 && line_end_bytes.next() == Some(b' ')
7444 && comment_suffix_has_leading_space
7445 {
7446 1
7447 } else {
7448 0
7449 };
7450
7451 // If this line currently begins with the line comment prefix, then record
7452 // the range containing the prefix.
7453 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7454 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7455 start..end
7456 } else {
7457 end..end
7458 }
7459 }
7460
7461 // TODO: Handle selections that cross excerpts
7462 for selection in &mut selections {
7463 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7464 let language = if let Some(language) =
7465 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7466 {
7467 language
7468 } else {
7469 continue;
7470 };
7471
7472 selection_edit_ranges.clear();
7473
7474 // If multiple selections contain a given row, avoid processing that
7475 // row more than once.
7476 let mut start_row = selection.start.row;
7477 if last_toggled_row == Some(start_row) {
7478 start_row += 1;
7479 }
7480 let end_row =
7481 if selection.end.row > selection.start.row && selection.end.column == 0 {
7482 selection.end.row - 1
7483 } else {
7484 selection.end.row
7485 };
7486 last_toggled_row = Some(end_row);
7487
7488 if start_row > end_row {
7489 continue;
7490 }
7491
7492 // If the language has line comments, toggle those.
7493 let full_comment_prefixes = language.line_comment_prefixes();
7494 if !full_comment_prefixes.is_empty() {
7495 let first_prefix = full_comment_prefixes
7496 .first()
7497 .expect("prefixes is non-empty");
7498 let prefix_trimmed_lengths = full_comment_prefixes
7499 .iter()
7500 .map(|p| p.trim_end_matches(' ').len())
7501 .collect::<SmallVec<[usize; 4]>>();
7502
7503 let mut all_selection_lines_are_comments = true;
7504
7505 for row in start_row..=end_row {
7506 if start_row < end_row && snapshot.is_line_blank(row) {
7507 continue;
7508 }
7509
7510 let prefix_range = full_comment_prefixes
7511 .iter()
7512 .zip(prefix_trimmed_lengths.iter().copied())
7513 .map(|(prefix, trimmed_prefix_len)| {
7514 comment_prefix_range(
7515 snapshot.deref(),
7516 row,
7517 &prefix[..trimmed_prefix_len],
7518 &prefix[trimmed_prefix_len..],
7519 )
7520 })
7521 .max_by_key(|range| range.end.column - range.start.column)
7522 .expect("prefixes is non-empty");
7523
7524 if prefix_range.is_empty() {
7525 all_selection_lines_are_comments = false;
7526 }
7527
7528 selection_edit_ranges.push(prefix_range);
7529 }
7530
7531 if all_selection_lines_are_comments {
7532 edits.extend(
7533 selection_edit_ranges
7534 .iter()
7535 .cloned()
7536 .map(|range| (range, empty_str.clone())),
7537 );
7538 } else {
7539 let min_column = selection_edit_ranges
7540 .iter()
7541 .map(|range| range.start.column)
7542 .min()
7543 .unwrap_or(0);
7544 edits.extend(selection_edit_ranges.iter().map(|range| {
7545 let position = Point::new(range.start.row, min_column);
7546 (position..position, first_prefix.clone())
7547 }));
7548 }
7549 } else if let Some((full_comment_prefix, comment_suffix)) =
7550 language.block_comment_delimiters()
7551 {
7552 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7553 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7554 let prefix_range = comment_prefix_range(
7555 snapshot.deref(),
7556 start_row,
7557 comment_prefix,
7558 comment_prefix_whitespace,
7559 );
7560 let suffix_range = comment_suffix_range(
7561 snapshot.deref(),
7562 end_row,
7563 comment_suffix.trim_start_matches(' '),
7564 comment_suffix.starts_with(' '),
7565 );
7566
7567 if prefix_range.is_empty() || suffix_range.is_empty() {
7568 edits.push((
7569 prefix_range.start..prefix_range.start,
7570 full_comment_prefix.clone(),
7571 ));
7572 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7573 suffixes_inserted.push((end_row, comment_suffix.len()));
7574 } else {
7575 edits.push((prefix_range, empty_str.clone()));
7576 edits.push((suffix_range, empty_str.clone()));
7577 }
7578 } else {
7579 continue;
7580 }
7581 }
7582
7583 drop(snapshot);
7584 this.buffer.update(cx, |buffer, cx| {
7585 buffer.edit(edits, None, cx);
7586 });
7587
7588 // Adjust selections so that they end before any comment suffixes that
7589 // were inserted.
7590 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7591 let mut selections = this.selections.all::<Point>(cx);
7592 let snapshot = this.buffer.read(cx).read(cx);
7593 for selection in &mut selections {
7594 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7595 match row.cmp(&selection.end.row) {
7596 Ordering::Less => {
7597 suffixes_inserted.next();
7598 continue;
7599 }
7600 Ordering::Greater => break,
7601 Ordering::Equal => {
7602 if selection.end.column == snapshot.line_len(row) {
7603 if selection.is_empty() {
7604 selection.start.column -= suffix_len as u32;
7605 }
7606 selection.end.column -= suffix_len as u32;
7607 }
7608 break;
7609 }
7610 }
7611 }
7612 }
7613
7614 drop(snapshot);
7615 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7616
7617 let selections = this.selections.all::<Point>(cx);
7618 let selections_on_single_row = selections.windows(2).all(|selections| {
7619 selections[0].start.row == selections[1].start.row
7620 && selections[0].end.row == selections[1].end.row
7621 && selections[0].start.row == selections[0].end.row
7622 });
7623 let selections_selecting = selections
7624 .iter()
7625 .any(|selection| selection.start != selection.end);
7626 let advance_downwards = action.advance_downwards
7627 && selections_on_single_row
7628 && !selections_selecting
7629 && this.mode != EditorMode::SingleLine;
7630
7631 if advance_downwards {
7632 let snapshot = this.buffer.read(cx).snapshot(cx);
7633
7634 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7635 s.move_cursors_with(|display_snapshot, display_point, _| {
7636 let mut point = display_point.to_point(display_snapshot);
7637 point.row += 1;
7638 point = snapshot.clip_point(point, Bias::Left);
7639 let display_point = point.to_display_point(display_snapshot);
7640 let goal = SelectionGoal::HorizontalPosition(
7641 display_snapshot
7642 .x_for_display_point(display_point, &text_layout_details)
7643 .into(),
7644 );
7645 (display_point, goal)
7646 })
7647 });
7648 }
7649 });
7650 }
7651
7652 pub fn select_larger_syntax_node(
7653 &mut self,
7654 _: &SelectLargerSyntaxNode,
7655 cx: &mut ViewContext<Self>,
7656 ) {
7657 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7658 let buffer = self.buffer.read(cx).snapshot(cx);
7659 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7660
7661 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7662 let mut selected_larger_node = false;
7663 let new_selections = old_selections
7664 .iter()
7665 .map(|selection| {
7666 let old_range = selection.start..selection.end;
7667 let mut new_range = old_range.clone();
7668 while let Some(containing_range) =
7669 buffer.range_for_syntax_ancestor(new_range.clone())
7670 {
7671 new_range = containing_range;
7672 if !display_map.intersects_fold(new_range.start)
7673 && !display_map.intersects_fold(new_range.end)
7674 {
7675 break;
7676 }
7677 }
7678
7679 selected_larger_node |= new_range != old_range;
7680 Selection {
7681 id: selection.id,
7682 start: new_range.start,
7683 end: new_range.end,
7684 goal: SelectionGoal::None,
7685 reversed: selection.reversed,
7686 }
7687 })
7688 .collect::<Vec<_>>();
7689
7690 if selected_larger_node {
7691 stack.push(old_selections);
7692 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7693 s.select(new_selections);
7694 });
7695 }
7696 self.select_larger_syntax_node_stack = stack;
7697 }
7698
7699 pub fn select_smaller_syntax_node(
7700 &mut self,
7701 _: &SelectSmallerSyntaxNode,
7702 cx: &mut ViewContext<Self>,
7703 ) {
7704 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7705 if let Some(selections) = stack.pop() {
7706 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7707 s.select(selections.to_vec());
7708 });
7709 }
7710 self.select_larger_syntax_node_stack = stack;
7711 }
7712
7713 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7714 let project = self.project.clone();
7715 cx.spawn(|this, mut cx| async move {
7716 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7717 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7718 }) else {
7719 return;
7720 };
7721
7722 let Some(project) = project else {
7723 return;
7724 };
7725 if project
7726 .update(&mut cx, |this, _| this.is_remote())
7727 .unwrap_or(true)
7728 {
7729 // Do not display any test indicators in remote projects.
7730 return;
7731 }
7732 let new_rows =
7733 cx.background_executor()
7734 .spawn({
7735 let snapshot = display_snapshot.clone();
7736 async move {
7737 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7738 }
7739 })
7740 .await;
7741 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7742
7743 this.update(&mut cx, |this, _| {
7744 this.clear_tasks();
7745 for (row, tasks) in rows {
7746 this.insert_tasks(row, tasks);
7747 }
7748 })
7749 .ok();
7750 })
7751 }
7752 fn fetch_runnable_ranges(
7753 snapshot: &DisplaySnapshot,
7754 range: Range<Anchor>,
7755 ) -> Vec<(Range<usize>, Runnable)> {
7756 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7757 }
7758
7759 fn runnable_rows(
7760 project: Model<Project>,
7761 snapshot: DisplaySnapshot,
7762 runnable_ranges: Vec<(Range<usize>, Runnable)>,
7763 mut cx: AsyncWindowContext,
7764 ) -> Vec<(u32, RunnableTasks)> {
7765 runnable_ranges
7766 .into_iter()
7767 .filter_map(|(multi_buffer_range, mut runnable)| {
7768 let (tasks, _) = cx
7769 .update(|cx| Self::resolve_runnable(project.clone(), &mut runnable, cx))
7770 .ok()?;
7771 if tasks.is_empty() {
7772 return None;
7773 }
7774 let point = multi_buffer_range.start.to_point(&snapshot.buffer_snapshot);
7775 Some((
7776 point.row,
7777 RunnableTasks {
7778 templates: tasks,
7779 column: point.column,
7780 },
7781 ))
7782 })
7783 .collect()
7784 }
7785
7786 fn resolve_runnable(
7787 project: Model<Project>,
7788 runnable: &mut Runnable,
7789 cx: &WindowContext<'_>,
7790 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7791 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7792 let worktree_id = project
7793 .buffer_for_id(runnable.buffer)
7794 .and_then(|buffer| buffer.read(cx).file())
7795 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7796
7797 (project.task_inventory().clone(), worktree_id)
7798 });
7799
7800 let inventory = inventory.read(cx);
7801 let tags = mem::take(&mut runnable.tags);
7802 let mut tags: Vec<_> = tags
7803 .into_iter()
7804 .flat_map(|tag| {
7805 let tag = tag.0.clone();
7806 inventory
7807 .list_tasks(Some(runnable.language.clone()), worktree_id)
7808 .into_iter()
7809 .filter(move |(_, template)| {
7810 template.tags.iter().any(|source_tag| source_tag == &tag)
7811 })
7812 })
7813 .sorted_by_key(|(kind, _)| kind.to_owned())
7814 .collect();
7815 if let Some((leading_tag_source, _)) = tags.first() {
7816 // Strongest source wins; if we have worktree tag binding, prefer that to
7817 // global and language bindings;
7818 // if we have a global binding, prefer that to language binding.
7819 let first_mismatch = tags
7820 .iter()
7821 .position(|(tag_source, _)| tag_source != leading_tag_source);
7822 if let Some(index) = first_mismatch {
7823 tags.truncate(index);
7824 }
7825 }
7826
7827 (tags, worktree_id)
7828 }
7829
7830 pub fn move_to_enclosing_bracket(
7831 &mut self,
7832 _: &MoveToEnclosingBracket,
7833 cx: &mut ViewContext<Self>,
7834 ) {
7835 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7836 s.move_offsets_with(|snapshot, selection| {
7837 let Some(enclosing_bracket_ranges) =
7838 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7839 else {
7840 return;
7841 };
7842
7843 let mut best_length = usize::MAX;
7844 let mut best_inside = false;
7845 let mut best_in_bracket_range = false;
7846 let mut best_destination = None;
7847 for (open, close) in enclosing_bracket_ranges {
7848 let close = close.to_inclusive();
7849 let length = close.end() - open.start;
7850 let inside = selection.start >= open.end && selection.end <= *close.start();
7851 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7852 || close.contains(&selection.head());
7853
7854 // If best is next to a bracket and current isn't, skip
7855 if !in_bracket_range && best_in_bracket_range {
7856 continue;
7857 }
7858
7859 // Prefer smaller lengths unless best is inside and current isn't
7860 if length > best_length && (best_inside || !inside) {
7861 continue;
7862 }
7863
7864 best_length = length;
7865 best_inside = inside;
7866 best_in_bracket_range = in_bracket_range;
7867 best_destination = Some(
7868 if close.contains(&selection.start) && close.contains(&selection.end) {
7869 if inside {
7870 open.end
7871 } else {
7872 open.start
7873 }
7874 } else {
7875 if inside {
7876 *close.start()
7877 } else {
7878 *close.end()
7879 }
7880 },
7881 );
7882 }
7883
7884 if let Some(destination) = best_destination {
7885 selection.collapse_to(destination, SelectionGoal::None);
7886 }
7887 })
7888 });
7889 }
7890
7891 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7892 self.end_selection(cx);
7893 self.selection_history.mode = SelectionHistoryMode::Undoing;
7894 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7895 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7896 self.select_next_state = entry.select_next_state;
7897 self.select_prev_state = entry.select_prev_state;
7898 self.add_selections_state = entry.add_selections_state;
7899 self.request_autoscroll(Autoscroll::newest(), cx);
7900 }
7901 self.selection_history.mode = SelectionHistoryMode::Normal;
7902 }
7903
7904 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7905 self.end_selection(cx);
7906 self.selection_history.mode = SelectionHistoryMode::Redoing;
7907 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7908 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7909 self.select_next_state = entry.select_next_state;
7910 self.select_prev_state = entry.select_prev_state;
7911 self.add_selections_state = entry.add_selections_state;
7912 self.request_autoscroll(Autoscroll::newest(), cx);
7913 }
7914 self.selection_history.mode = SelectionHistoryMode::Normal;
7915 }
7916
7917 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7918 let selections = self.selections.disjoint_anchors();
7919
7920 let lines = if action.lines == 0 { 3 } else { action.lines };
7921
7922 self.buffer.update(cx, |buffer, cx| {
7923 buffer.expand_excerpts(
7924 selections
7925 .into_iter()
7926 .map(|selection| selection.head().excerpt_id)
7927 .dedup(),
7928 lines,
7929 cx,
7930 )
7931 })
7932 }
7933
7934 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7935 self.buffer
7936 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7937 }
7938
7939 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7940 self.go_to_diagnostic_impl(Direction::Next, cx)
7941 }
7942
7943 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7944 self.go_to_diagnostic_impl(Direction::Prev, cx)
7945 }
7946
7947 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7948 let buffer = self.buffer.read(cx).snapshot(cx);
7949 let selection = self.selections.newest::<usize>(cx);
7950
7951 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7952 if direction == Direction::Next {
7953 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7954 let (group_id, jump_to) = popover.activation_info();
7955 if self.activate_diagnostics(group_id, cx) {
7956 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7957 let mut new_selection = s.newest_anchor().clone();
7958 new_selection.collapse_to(jump_to, SelectionGoal::None);
7959 s.select_anchors(vec![new_selection.clone()]);
7960 });
7961 }
7962 return;
7963 }
7964 }
7965
7966 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7967 active_diagnostics
7968 .primary_range
7969 .to_offset(&buffer)
7970 .to_inclusive()
7971 });
7972 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7973 if active_primary_range.contains(&selection.head()) {
7974 *active_primary_range.end()
7975 } else {
7976 selection.head()
7977 }
7978 } else {
7979 selection.head()
7980 };
7981 let snapshot = self.snapshot(cx);
7982 loop {
7983 let mut diagnostics = if direction == Direction::Prev {
7984 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7985 } else {
7986 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7987 }
7988 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
7989 let group = diagnostics.find_map(|entry| {
7990 if entry.diagnostic.is_primary
7991 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7992 && !entry.range.is_empty()
7993 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7994 && !entry.range.contains(&search_start)
7995 {
7996 Some((entry.range, entry.diagnostic.group_id))
7997 } else {
7998 None
7999 }
8000 });
8001
8002 if let Some((primary_range, group_id)) = group {
8003 if self.activate_diagnostics(group_id, cx) {
8004 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8005 s.select(vec![Selection {
8006 id: selection.id,
8007 start: primary_range.start,
8008 end: primary_range.start,
8009 reversed: false,
8010 goal: SelectionGoal::None,
8011 }]);
8012 });
8013 }
8014 break;
8015 } else {
8016 // Cycle around to the start of the buffer, potentially moving back to the start of
8017 // the currently active diagnostic.
8018 active_primary_range.take();
8019 if direction == Direction::Prev {
8020 if search_start == buffer.len() {
8021 break;
8022 } else {
8023 search_start = buffer.len();
8024 }
8025 } else if search_start == 0 {
8026 break;
8027 } else {
8028 search_start = 0;
8029 }
8030 }
8031 }
8032 }
8033
8034 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8035 let snapshot = self
8036 .display_map
8037 .update(cx, |display_map, cx| display_map.snapshot(cx));
8038 let selection = self.selections.newest::<Point>(cx);
8039
8040 if !self.seek_in_direction(
8041 &snapshot,
8042 selection.head(),
8043 false,
8044 snapshot
8045 .buffer_snapshot
8046 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
8047 cx,
8048 ) {
8049 let wrapped_point = Point::zero();
8050 self.seek_in_direction(
8051 &snapshot,
8052 wrapped_point,
8053 true,
8054 snapshot
8055 .buffer_snapshot
8056 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
8057 cx,
8058 );
8059 }
8060 }
8061
8062 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8063 let snapshot = self
8064 .display_map
8065 .update(cx, |display_map, cx| display_map.snapshot(cx));
8066 let selection = self.selections.newest::<Point>(cx);
8067
8068 if !self.seek_in_direction(
8069 &snapshot,
8070 selection.head(),
8071 false,
8072 snapshot
8073 .buffer_snapshot
8074 .git_diff_hunks_in_range_rev(0..selection.head().row),
8075 cx,
8076 ) {
8077 let wrapped_point = snapshot.buffer_snapshot.max_point();
8078 self.seek_in_direction(
8079 &snapshot,
8080 wrapped_point,
8081 true,
8082 snapshot
8083 .buffer_snapshot
8084 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
8085 cx,
8086 );
8087 }
8088 }
8089
8090 fn seek_in_direction(
8091 &mut self,
8092 snapshot: &DisplaySnapshot,
8093 initial_point: Point,
8094 is_wrapped: bool,
8095 hunks: impl Iterator<Item = DiffHunk<u32>>,
8096 cx: &mut ViewContext<Editor>,
8097 ) -> bool {
8098 let display_point = initial_point.to_display_point(snapshot);
8099 let mut hunks = hunks
8100 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8101 .filter(|hunk| {
8102 if is_wrapped {
8103 true
8104 } else {
8105 !hunk.contains_display_row(display_point.row())
8106 }
8107 })
8108 .dedup();
8109
8110 if let Some(hunk) = hunks.next() {
8111 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8112 let row = hunk.start_display_row();
8113 let point = DisplayPoint::new(row, 0);
8114 s.select_display_ranges([point..point]);
8115 });
8116
8117 true
8118 } else {
8119 false
8120 }
8121 }
8122
8123 pub fn go_to_definition(
8124 &mut self,
8125 _: &GoToDefinition,
8126 cx: &mut ViewContext<Self>,
8127 ) -> Task<Result<bool>> {
8128 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8129 }
8130
8131 pub fn go_to_implementation(
8132 &mut self,
8133 _: &GoToImplementation,
8134 cx: &mut ViewContext<Self>,
8135 ) -> Task<Result<bool>> {
8136 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8137 }
8138
8139 pub fn go_to_implementation_split(
8140 &mut self,
8141 _: &GoToImplementationSplit,
8142 cx: &mut ViewContext<Self>,
8143 ) -> Task<Result<bool>> {
8144 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8145 }
8146
8147 pub fn go_to_type_definition(
8148 &mut self,
8149 _: &GoToTypeDefinition,
8150 cx: &mut ViewContext<Self>,
8151 ) -> Task<Result<bool>> {
8152 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8153 }
8154
8155 pub fn go_to_definition_split(
8156 &mut self,
8157 _: &GoToDefinitionSplit,
8158 cx: &mut ViewContext<Self>,
8159 ) -> Task<Result<bool>> {
8160 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8161 }
8162
8163 pub fn go_to_type_definition_split(
8164 &mut self,
8165 _: &GoToTypeDefinitionSplit,
8166 cx: &mut ViewContext<Self>,
8167 ) -> Task<Result<bool>> {
8168 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8169 }
8170
8171 fn go_to_definition_of_kind(
8172 &mut self,
8173 kind: GotoDefinitionKind,
8174 split: bool,
8175 cx: &mut ViewContext<Self>,
8176 ) -> Task<Result<bool>> {
8177 let Some(workspace) = self.workspace() else {
8178 return Task::ready(Ok(false));
8179 };
8180 let buffer = self.buffer.read(cx);
8181 let head = self.selections.newest::<usize>(cx).head();
8182 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8183 text_anchor
8184 } else {
8185 return Task::ready(Ok(false));
8186 };
8187
8188 let project = workspace.read(cx).project().clone();
8189 let definitions = project.update(cx, |project, cx| match kind {
8190 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8191 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8192 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8193 });
8194
8195 cx.spawn(|editor, mut cx| async move {
8196 let definitions = definitions.await?;
8197 let navigated = editor
8198 .update(&mut cx, |editor, cx| {
8199 editor.navigate_to_hover_links(
8200 Some(kind),
8201 definitions
8202 .into_iter()
8203 .filter(|location| {
8204 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8205 })
8206 .map(HoverLink::Text)
8207 .collect::<Vec<_>>(),
8208 split,
8209 cx,
8210 )
8211 })?
8212 .await?;
8213 anyhow::Ok(navigated)
8214 })
8215 }
8216
8217 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8218 let position = self.selections.newest_anchor().head();
8219 let Some((buffer, buffer_position)) =
8220 self.buffer.read(cx).text_anchor_for_position(position, cx)
8221 else {
8222 return;
8223 };
8224
8225 cx.spawn(|editor, mut cx| async move {
8226 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8227 editor.update(&mut cx, |_, cx| {
8228 cx.open_url(&url);
8229 })
8230 } else {
8231 Ok(())
8232 }
8233 })
8234 .detach();
8235 }
8236
8237 pub(crate) fn navigate_to_hover_links(
8238 &mut self,
8239 kind: Option<GotoDefinitionKind>,
8240 mut definitions: Vec<HoverLink>,
8241 split: bool,
8242 cx: &mut ViewContext<Editor>,
8243 ) -> Task<Result<bool>> {
8244 // If there is one definition, just open it directly
8245 if definitions.len() == 1 {
8246 let definition = definitions.pop().unwrap();
8247 let target_task = match definition {
8248 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8249 HoverLink::InlayHint(lsp_location, server_id) => {
8250 self.compute_target_location(lsp_location, server_id, cx)
8251 }
8252 HoverLink::Url(url) => {
8253 cx.open_url(&url);
8254 Task::ready(Ok(None))
8255 }
8256 };
8257 cx.spawn(|editor, mut cx| async move {
8258 let target = target_task.await.context("target resolution task")?;
8259 if let Some(target) = target {
8260 editor.update(&mut cx, |editor, cx| {
8261 let Some(workspace) = editor.workspace() else {
8262 return false;
8263 };
8264 let pane = workspace.read(cx).active_pane().clone();
8265
8266 let range = target.range.to_offset(target.buffer.read(cx));
8267 let range = editor.range_for_match(&range);
8268 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8269 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8270 s.select_ranges([range]);
8271 });
8272 } else {
8273 cx.window_context().defer(move |cx| {
8274 let target_editor: View<Self> =
8275 workspace.update(cx, |workspace, cx| {
8276 let pane = if split {
8277 workspace.adjacent_pane(cx)
8278 } else {
8279 workspace.active_pane().clone()
8280 };
8281
8282 workspace.open_project_item(pane, target.buffer.clone(), cx)
8283 });
8284 target_editor.update(cx, |target_editor, cx| {
8285 // When selecting a definition in a different buffer, disable the nav history
8286 // to avoid creating a history entry at the previous cursor location.
8287 pane.update(cx, |pane, _| pane.disable_history());
8288 target_editor.change_selections(
8289 Some(Autoscroll::focused()),
8290 cx,
8291 |s| {
8292 s.select_ranges([range]);
8293 },
8294 );
8295 pane.update(cx, |pane, _| pane.enable_history());
8296 });
8297 });
8298 }
8299 true
8300 })
8301 } else {
8302 Ok(false)
8303 }
8304 })
8305 } else if !definitions.is_empty() {
8306 let replica_id = self.replica_id(cx);
8307 cx.spawn(|editor, mut cx| async move {
8308 let (title, location_tasks, workspace) = editor
8309 .update(&mut cx, |editor, cx| {
8310 let tab_kind = match kind {
8311 Some(GotoDefinitionKind::Implementation) => "Implementations",
8312 _ => "Definitions",
8313 };
8314 let title = definitions
8315 .iter()
8316 .find_map(|definition| match definition {
8317 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8318 let buffer = origin.buffer.read(cx);
8319 format!(
8320 "{} for {}",
8321 tab_kind,
8322 buffer
8323 .text_for_range(origin.range.clone())
8324 .collect::<String>()
8325 )
8326 }),
8327 HoverLink::InlayHint(_, _) => None,
8328 HoverLink::Url(_) => None,
8329 })
8330 .unwrap_or(tab_kind.to_string());
8331 let location_tasks = definitions
8332 .into_iter()
8333 .map(|definition| match definition {
8334 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8335 HoverLink::InlayHint(lsp_location, server_id) => {
8336 editor.compute_target_location(lsp_location, server_id, cx)
8337 }
8338 HoverLink::Url(_) => Task::ready(Ok(None)),
8339 })
8340 .collect::<Vec<_>>();
8341 (title, location_tasks, editor.workspace().clone())
8342 })
8343 .context("location tasks preparation")?;
8344
8345 let locations = futures::future::join_all(location_tasks)
8346 .await
8347 .into_iter()
8348 .filter_map(|location| location.transpose())
8349 .collect::<Result<_>>()
8350 .context("location tasks")?;
8351
8352 let Some(workspace) = workspace else {
8353 return Ok(false);
8354 };
8355 let opened = workspace
8356 .update(&mut cx, |workspace, cx| {
8357 Self::open_locations_in_multibuffer(
8358 workspace, locations, replica_id, title, split, cx,
8359 )
8360 })
8361 .ok();
8362
8363 anyhow::Ok(opened.is_some())
8364 })
8365 } else {
8366 Task::ready(Ok(false))
8367 }
8368 }
8369
8370 fn compute_target_location(
8371 &self,
8372 lsp_location: lsp::Location,
8373 server_id: LanguageServerId,
8374 cx: &mut ViewContext<Editor>,
8375 ) -> Task<anyhow::Result<Option<Location>>> {
8376 let Some(project) = self.project.clone() else {
8377 return Task::Ready(Some(Ok(None)));
8378 };
8379
8380 cx.spawn(move |editor, mut cx| async move {
8381 let location_task = editor.update(&mut cx, |editor, cx| {
8382 project.update(cx, |project, cx| {
8383 let language_server_name =
8384 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8385 project
8386 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8387 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8388 });
8389 language_server_name.map(|language_server_name| {
8390 project.open_local_buffer_via_lsp(
8391 lsp_location.uri.clone(),
8392 server_id,
8393 language_server_name,
8394 cx,
8395 )
8396 })
8397 })
8398 })?;
8399 let location = match location_task {
8400 Some(task) => Some({
8401 let target_buffer_handle = task.await.context("open local buffer")?;
8402 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8403 let target_start = target_buffer
8404 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8405 let target_end = target_buffer
8406 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8407 target_buffer.anchor_after(target_start)
8408 ..target_buffer.anchor_before(target_end)
8409 })?;
8410 Location {
8411 buffer: target_buffer_handle,
8412 range,
8413 }
8414 }),
8415 None => None,
8416 };
8417 Ok(location)
8418 })
8419 }
8420
8421 pub fn find_all_references(
8422 &mut self,
8423 _: &FindAllReferences,
8424 cx: &mut ViewContext<Self>,
8425 ) -> Option<Task<Result<()>>> {
8426 let multi_buffer = self.buffer.read(cx);
8427 let selection = self.selections.newest::<usize>(cx);
8428 let head = selection.head();
8429
8430 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8431 let head_anchor = multi_buffer_snapshot.anchor_at(
8432 head,
8433 if head < selection.tail() {
8434 Bias::Right
8435 } else {
8436 Bias::Left
8437 },
8438 );
8439
8440 match self
8441 .find_all_references_task_sources
8442 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8443 {
8444 Ok(_) => {
8445 log::info!(
8446 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8447 );
8448 return None;
8449 }
8450 Err(i) => {
8451 self.find_all_references_task_sources.insert(i, head_anchor);
8452 }
8453 }
8454
8455 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8456 let replica_id = self.replica_id(cx);
8457 let workspace = self.workspace()?;
8458 let project = workspace.read(cx).project().clone();
8459 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8460 Some(cx.spawn(|editor, mut cx| async move {
8461 let _cleanup = defer({
8462 let mut cx = cx.clone();
8463 move || {
8464 let _ = editor.update(&mut cx, |editor, _| {
8465 if let Ok(i) =
8466 editor
8467 .find_all_references_task_sources
8468 .binary_search_by(|anchor| {
8469 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8470 })
8471 {
8472 editor.find_all_references_task_sources.remove(i);
8473 }
8474 });
8475 }
8476 });
8477
8478 let locations = references.await?;
8479 if locations.is_empty() {
8480 return anyhow::Ok(());
8481 }
8482
8483 workspace.update(&mut cx, |workspace, cx| {
8484 let title = locations
8485 .first()
8486 .as_ref()
8487 .map(|location| {
8488 let buffer = location.buffer.read(cx);
8489 format!(
8490 "References to `{}`",
8491 buffer
8492 .text_for_range(location.range.clone())
8493 .collect::<String>()
8494 )
8495 })
8496 .unwrap();
8497 Self::open_locations_in_multibuffer(
8498 workspace, locations, replica_id, title, false, cx,
8499 );
8500 })
8501 }))
8502 }
8503
8504 /// Opens a multibuffer with the given project locations in it
8505 pub fn open_locations_in_multibuffer(
8506 workspace: &mut Workspace,
8507 mut locations: Vec<Location>,
8508 replica_id: ReplicaId,
8509 title: String,
8510 split: bool,
8511 cx: &mut ViewContext<Workspace>,
8512 ) {
8513 // If there are multiple definitions, open them in a multibuffer
8514 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8515 let mut locations = locations.into_iter().peekable();
8516 let mut ranges_to_highlight = Vec::new();
8517 let capability = workspace.project().read(cx).capability();
8518
8519 let excerpt_buffer = cx.new_model(|cx| {
8520 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8521 while let Some(location) = locations.next() {
8522 let buffer = location.buffer.read(cx);
8523 let mut ranges_for_buffer = Vec::new();
8524 let range = location.range.to_offset(buffer);
8525 ranges_for_buffer.push(range.clone());
8526
8527 while let Some(next_location) = locations.peek() {
8528 if next_location.buffer == location.buffer {
8529 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8530 locations.next();
8531 } else {
8532 break;
8533 }
8534 }
8535
8536 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8537 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8538 location.buffer.clone(),
8539 ranges_for_buffer,
8540 DEFAULT_MULTIBUFFER_CONTEXT,
8541 cx,
8542 ))
8543 }
8544
8545 multibuffer.with_title(title)
8546 });
8547
8548 let editor = cx.new_view(|cx| {
8549 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8550 });
8551 editor.update(cx, |editor, cx| {
8552 editor.highlight_background::<Self>(
8553 &ranges_to_highlight,
8554 |theme| theme.editor_highlighted_line_background,
8555 cx,
8556 );
8557 });
8558
8559 let item = Box::new(editor);
8560 let item_id = item.item_id();
8561
8562 if split {
8563 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8564 } else {
8565 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8566 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8567 pane.close_current_preview_item(cx)
8568 } else {
8569 None
8570 }
8571 });
8572 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8573 }
8574 workspace.active_pane().update(cx, |pane, cx| {
8575 pane.set_preview_item_id(Some(item_id), cx);
8576 });
8577 }
8578
8579 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8580 use language::ToOffset as _;
8581
8582 let project = self.project.clone()?;
8583 let selection = self.selections.newest_anchor().clone();
8584 let (cursor_buffer, cursor_buffer_position) = self
8585 .buffer
8586 .read(cx)
8587 .text_anchor_for_position(selection.head(), cx)?;
8588 let (tail_buffer, cursor_buffer_position_end) = self
8589 .buffer
8590 .read(cx)
8591 .text_anchor_for_position(selection.tail(), cx)?;
8592 if tail_buffer != cursor_buffer {
8593 return None;
8594 }
8595
8596 let snapshot = cursor_buffer.read(cx).snapshot();
8597 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8598 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8599 let prepare_rename = project.update(cx, |project, cx| {
8600 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8601 });
8602 drop(snapshot);
8603
8604 Some(cx.spawn(|this, mut cx| async move {
8605 let rename_range = if let Some(range) = prepare_rename.await? {
8606 Some(range)
8607 } else {
8608 this.update(&mut cx, |this, cx| {
8609 let buffer = this.buffer.read(cx).snapshot(cx);
8610 let mut buffer_highlights = this
8611 .document_highlights_for_position(selection.head(), &buffer)
8612 .filter(|highlight| {
8613 highlight.start.excerpt_id == selection.head().excerpt_id
8614 && highlight.end.excerpt_id == selection.head().excerpt_id
8615 });
8616 buffer_highlights
8617 .next()
8618 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8619 })?
8620 };
8621 if let Some(rename_range) = rename_range {
8622 this.update(&mut cx, |this, cx| {
8623 let snapshot = cursor_buffer.read(cx).snapshot();
8624 let rename_buffer_range = rename_range.to_offset(&snapshot);
8625 let cursor_offset_in_rename_range =
8626 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8627 let cursor_offset_in_rename_range_end =
8628 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8629
8630 this.take_rename(false, cx);
8631 let buffer = this.buffer.read(cx).read(cx);
8632 let cursor_offset = selection.head().to_offset(&buffer);
8633 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8634 let rename_end = rename_start + rename_buffer_range.len();
8635 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8636 let mut old_highlight_id = None;
8637 let old_name: Arc<str> = buffer
8638 .chunks(rename_start..rename_end, true)
8639 .map(|chunk| {
8640 if old_highlight_id.is_none() {
8641 old_highlight_id = chunk.syntax_highlight_id;
8642 }
8643 chunk.text
8644 })
8645 .collect::<String>()
8646 .into();
8647
8648 drop(buffer);
8649
8650 // Position the selection in the rename editor so that it matches the current selection.
8651 this.show_local_selections = false;
8652 let rename_editor = cx.new_view(|cx| {
8653 let mut editor = Editor::single_line(cx);
8654 editor.buffer.update(cx, |buffer, cx| {
8655 buffer.edit([(0..0, old_name.clone())], None, cx)
8656 });
8657 let rename_selection_range = match cursor_offset_in_rename_range
8658 .cmp(&cursor_offset_in_rename_range_end)
8659 {
8660 Ordering::Equal => {
8661 editor.select_all(&SelectAll, cx);
8662 return editor;
8663 }
8664 Ordering::Less => {
8665 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8666 }
8667 Ordering::Greater => {
8668 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8669 }
8670 };
8671 if rename_selection_range.end > old_name.len() {
8672 editor.select_all(&SelectAll, cx);
8673 } else {
8674 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8675 s.select_ranges([rename_selection_range]);
8676 });
8677 }
8678 editor
8679 });
8680
8681 let write_highlights =
8682 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8683 let read_highlights =
8684 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8685 let ranges = write_highlights
8686 .iter()
8687 .flat_map(|(_, ranges)| ranges.iter())
8688 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8689 .cloned()
8690 .collect();
8691
8692 this.highlight_text::<Rename>(
8693 ranges,
8694 HighlightStyle {
8695 fade_out: Some(0.6),
8696 ..Default::default()
8697 },
8698 cx,
8699 );
8700 let rename_focus_handle = rename_editor.focus_handle(cx);
8701 cx.focus(&rename_focus_handle);
8702 let block_id = this.insert_blocks(
8703 [BlockProperties {
8704 style: BlockStyle::Flex,
8705 position: range.start,
8706 height: 1,
8707 render: Box::new({
8708 let rename_editor = rename_editor.clone();
8709 move |cx: &mut BlockContext| {
8710 let mut text_style = cx.editor_style.text.clone();
8711 if let Some(highlight_style) = old_highlight_id
8712 .and_then(|h| h.style(&cx.editor_style.syntax))
8713 {
8714 text_style = text_style.highlight(highlight_style);
8715 }
8716 div()
8717 .pl(cx.anchor_x)
8718 .child(EditorElement::new(
8719 &rename_editor,
8720 EditorStyle {
8721 background: cx.theme().system().transparent,
8722 local_player: cx.editor_style.local_player,
8723 text: text_style,
8724 scrollbar_width: cx.editor_style.scrollbar_width,
8725 syntax: cx.editor_style.syntax.clone(),
8726 status: cx.editor_style.status.clone(),
8727 inlay_hints_style: HighlightStyle {
8728 color: Some(cx.theme().status().hint),
8729 font_weight: Some(FontWeight::BOLD),
8730 ..HighlightStyle::default()
8731 },
8732 suggestions_style: HighlightStyle {
8733 color: Some(cx.theme().status().predictive),
8734 ..HighlightStyle::default()
8735 },
8736 },
8737 ))
8738 .into_any_element()
8739 }
8740 }),
8741 disposition: BlockDisposition::Below,
8742 }],
8743 Some(Autoscroll::fit()),
8744 cx,
8745 )[0];
8746 this.pending_rename = Some(RenameState {
8747 range,
8748 old_name,
8749 editor: rename_editor,
8750 block_id,
8751 });
8752 })?;
8753 }
8754
8755 Ok(())
8756 }))
8757 }
8758
8759 pub fn confirm_rename(
8760 &mut self,
8761 _: &ConfirmRename,
8762 cx: &mut ViewContext<Self>,
8763 ) -> Option<Task<Result<()>>> {
8764 let rename = self.take_rename(false, cx)?;
8765 let workspace = self.workspace()?;
8766 let (start_buffer, start) = self
8767 .buffer
8768 .read(cx)
8769 .text_anchor_for_position(rename.range.start, cx)?;
8770 let (end_buffer, end) = self
8771 .buffer
8772 .read(cx)
8773 .text_anchor_for_position(rename.range.end, cx)?;
8774 if start_buffer != end_buffer {
8775 return None;
8776 }
8777
8778 let buffer = start_buffer;
8779 let range = start..end;
8780 let old_name = rename.old_name;
8781 let new_name = rename.editor.read(cx).text(cx);
8782
8783 let rename = workspace
8784 .read(cx)
8785 .project()
8786 .clone()
8787 .update(cx, |project, cx| {
8788 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8789 });
8790 let workspace = workspace.downgrade();
8791
8792 Some(cx.spawn(|editor, mut cx| async move {
8793 let project_transaction = rename.await?;
8794 Self::open_project_transaction(
8795 &editor,
8796 workspace,
8797 project_transaction,
8798 format!("Rename: {} → {}", old_name, new_name),
8799 cx.clone(),
8800 )
8801 .await?;
8802
8803 editor.update(&mut cx, |editor, cx| {
8804 editor.refresh_document_highlights(cx);
8805 })?;
8806 Ok(())
8807 }))
8808 }
8809
8810 fn take_rename(
8811 &mut self,
8812 moving_cursor: bool,
8813 cx: &mut ViewContext<Self>,
8814 ) -> Option<RenameState> {
8815 let rename = self.pending_rename.take()?;
8816 if rename.editor.focus_handle(cx).is_focused(cx) {
8817 cx.focus(&self.focus_handle);
8818 }
8819
8820 self.remove_blocks(
8821 [rename.block_id].into_iter().collect(),
8822 Some(Autoscroll::fit()),
8823 cx,
8824 );
8825 self.clear_highlights::<Rename>(cx);
8826 self.show_local_selections = true;
8827
8828 if moving_cursor {
8829 let rename_editor = rename.editor.read(cx);
8830 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8831
8832 // Update the selection to match the position of the selection inside
8833 // the rename editor.
8834 let snapshot = self.buffer.read(cx).read(cx);
8835 let rename_range = rename.range.to_offset(&snapshot);
8836 let cursor_in_editor = snapshot
8837 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8838 .min(rename_range.end);
8839 drop(snapshot);
8840
8841 self.change_selections(None, cx, |s| {
8842 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8843 });
8844 } else {
8845 self.refresh_document_highlights(cx);
8846 }
8847
8848 Some(rename)
8849 }
8850
8851 pub fn pending_rename(&self) -> Option<&RenameState> {
8852 self.pending_rename.as_ref()
8853 }
8854
8855 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8856 let project = match &self.project {
8857 Some(project) => project.clone(),
8858 None => return None,
8859 };
8860
8861 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8862 }
8863
8864 fn perform_format(
8865 &mut self,
8866 project: Model<Project>,
8867 trigger: FormatTrigger,
8868 cx: &mut ViewContext<Self>,
8869 ) -> Task<Result<()>> {
8870 let buffer = self.buffer().clone();
8871 let mut buffers = buffer.read(cx).all_buffers();
8872 if trigger == FormatTrigger::Save {
8873 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8874 }
8875
8876 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8877 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8878
8879 cx.spawn(|_, mut cx| async move {
8880 let transaction = futures::select_biased! {
8881 () = timeout => {
8882 log::warn!("timed out waiting for formatting");
8883 None
8884 }
8885 transaction = format.log_err().fuse() => transaction,
8886 };
8887
8888 buffer
8889 .update(&mut cx, |buffer, cx| {
8890 if let Some(transaction) = transaction {
8891 if !buffer.is_singleton() {
8892 buffer.push_transaction(&transaction.0, cx);
8893 }
8894 }
8895
8896 cx.notify();
8897 })
8898 .ok();
8899
8900 Ok(())
8901 })
8902 }
8903
8904 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8905 if let Some(project) = self.project.clone() {
8906 self.buffer.update(cx, |multi_buffer, cx| {
8907 project.update(cx, |project, cx| {
8908 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8909 });
8910 })
8911 }
8912 }
8913
8914 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8915 cx.show_character_palette();
8916 }
8917
8918 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8919 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8920 let buffer = self.buffer.read(cx).snapshot(cx);
8921 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8922 let is_valid = buffer
8923 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8924 .any(|entry| {
8925 entry.diagnostic.is_primary
8926 && !entry.range.is_empty()
8927 && entry.range.start == primary_range_start
8928 && entry.diagnostic.message == active_diagnostics.primary_message
8929 });
8930
8931 if is_valid != active_diagnostics.is_valid {
8932 active_diagnostics.is_valid = is_valid;
8933 let mut new_styles = HashMap::default();
8934 for (block_id, diagnostic) in &active_diagnostics.blocks {
8935 new_styles.insert(
8936 *block_id,
8937 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8938 );
8939 }
8940 self.display_map
8941 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8942 }
8943 }
8944 }
8945
8946 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8947 self.dismiss_diagnostics(cx);
8948 let snapshot = self.snapshot(cx);
8949 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8950 let buffer = self.buffer.read(cx).snapshot(cx);
8951
8952 let mut primary_range = None;
8953 let mut primary_message = None;
8954 let mut group_end = Point::zero();
8955 let diagnostic_group = buffer
8956 .diagnostic_group::<Point>(group_id)
8957 .filter_map(|entry| {
8958 if snapshot.is_line_folded(entry.range.start.row)
8959 && (entry.range.start.row == entry.range.end.row
8960 || snapshot.is_line_folded(entry.range.end.row))
8961 {
8962 return None;
8963 }
8964 if entry.range.end > group_end {
8965 group_end = entry.range.end;
8966 }
8967 if entry.diagnostic.is_primary {
8968 primary_range = Some(entry.range.clone());
8969 primary_message = Some(entry.diagnostic.message.clone());
8970 }
8971 Some(entry)
8972 })
8973 .collect::<Vec<_>>();
8974 let primary_range = primary_range?;
8975 let primary_message = primary_message?;
8976 let primary_range =
8977 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8978
8979 let blocks = display_map
8980 .insert_blocks(
8981 diagnostic_group.iter().map(|entry| {
8982 let diagnostic = entry.diagnostic.clone();
8983 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8984 BlockProperties {
8985 style: BlockStyle::Fixed,
8986 position: buffer.anchor_after(entry.range.start),
8987 height: message_height,
8988 render: diagnostic_block_renderer(diagnostic, true),
8989 disposition: BlockDisposition::Below,
8990 }
8991 }),
8992 cx,
8993 )
8994 .into_iter()
8995 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8996 .collect();
8997
8998 Some(ActiveDiagnosticGroup {
8999 primary_range,
9000 primary_message,
9001 blocks,
9002 is_valid: true,
9003 })
9004 });
9005 self.active_diagnostics.is_some()
9006 }
9007
9008 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9009 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9010 self.display_map.update(cx, |display_map, cx| {
9011 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9012 });
9013 cx.notify();
9014 }
9015 }
9016
9017 pub fn set_selections_from_remote(
9018 &mut self,
9019 selections: Vec<Selection<Anchor>>,
9020 pending_selection: Option<Selection<Anchor>>,
9021 cx: &mut ViewContext<Self>,
9022 ) {
9023 let old_cursor_position = self.selections.newest_anchor().head();
9024 self.selections.change_with(cx, |s| {
9025 s.select_anchors(selections);
9026 if let Some(pending_selection) = pending_selection {
9027 s.set_pending(pending_selection, SelectMode::Character);
9028 } else {
9029 s.clear_pending();
9030 }
9031 });
9032 self.selections_did_change(false, &old_cursor_position, cx);
9033 }
9034
9035 fn push_to_selection_history(&mut self) {
9036 self.selection_history.push(SelectionHistoryEntry {
9037 selections: self.selections.disjoint_anchors(),
9038 select_next_state: self.select_next_state.clone(),
9039 select_prev_state: self.select_prev_state.clone(),
9040 add_selections_state: self.add_selections_state.clone(),
9041 });
9042 }
9043
9044 pub fn transact(
9045 &mut self,
9046 cx: &mut ViewContext<Self>,
9047 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9048 ) -> Option<TransactionId> {
9049 self.start_transaction_at(Instant::now(), cx);
9050 update(self, cx);
9051 self.end_transaction_at(Instant::now(), cx)
9052 }
9053
9054 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9055 self.end_selection(cx);
9056 if let Some(tx_id) = self
9057 .buffer
9058 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9059 {
9060 self.selection_history
9061 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9062 cx.emit(EditorEvent::TransactionBegun {
9063 transaction_id: tx_id,
9064 })
9065 }
9066 }
9067
9068 fn end_transaction_at(
9069 &mut self,
9070 now: Instant,
9071 cx: &mut ViewContext<Self>,
9072 ) -> Option<TransactionId> {
9073 if let Some(tx_id) = self
9074 .buffer
9075 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9076 {
9077 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9078 *end_selections = Some(self.selections.disjoint_anchors());
9079 } else {
9080 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9081 }
9082
9083 cx.emit(EditorEvent::Edited);
9084 Some(tx_id)
9085 } else {
9086 None
9087 }
9088 }
9089
9090 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9091 let mut fold_ranges = Vec::new();
9092
9093 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9094
9095 let selections = self.selections.all_adjusted(cx);
9096 for selection in selections {
9097 let range = selection.range().sorted();
9098 let buffer_start_row = range.start.row;
9099
9100 for row in (0..=range.end.row).rev() {
9101 let fold_range = display_map.foldable_range(row);
9102
9103 if let Some(fold_range) = fold_range {
9104 if fold_range.end.row >= buffer_start_row {
9105 fold_ranges.push(fold_range);
9106 if row <= range.start.row {
9107 break;
9108 }
9109 }
9110 }
9111 }
9112 }
9113
9114 self.fold_ranges(fold_ranges, true, cx);
9115 }
9116
9117 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9118 let buffer_row = fold_at.buffer_row;
9119 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9120
9121 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9122 let autoscroll = self
9123 .selections
9124 .all::<Point>(cx)
9125 .iter()
9126 .any(|selection| fold_range.overlaps(&selection.range()));
9127
9128 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9129 }
9130 }
9131
9132 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9133 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9134 let buffer = &display_map.buffer_snapshot;
9135 let selections = self.selections.all::<Point>(cx);
9136 let ranges = selections
9137 .iter()
9138 .map(|s| {
9139 let range = s.display_range(&display_map).sorted();
9140 let mut start = range.start.to_point(&display_map);
9141 let mut end = range.end.to_point(&display_map);
9142 start.column = 0;
9143 end.column = buffer.line_len(end.row);
9144 start..end
9145 })
9146 .collect::<Vec<_>>();
9147
9148 self.unfold_ranges(ranges, true, true, cx);
9149 }
9150
9151 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9152 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9153
9154 let intersection_range = Point::new(unfold_at.buffer_row, 0)
9155 ..Point::new(
9156 unfold_at.buffer_row,
9157 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9158 );
9159
9160 let autoscroll = self
9161 .selections
9162 .all::<Point>(cx)
9163 .iter()
9164 .any(|selection| selection.range().overlaps(&intersection_range));
9165
9166 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9167 }
9168
9169 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9170 let selections = self.selections.all::<Point>(cx);
9171 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9172 let line_mode = self.selections.line_mode;
9173 let ranges = selections.into_iter().map(|s| {
9174 if line_mode {
9175 let start = Point::new(s.start.row, 0);
9176 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
9177 start..end
9178 } else {
9179 s.start..s.end
9180 }
9181 });
9182 self.fold_ranges(ranges, true, cx);
9183 }
9184
9185 pub fn fold_ranges<T: ToOffset + Clone>(
9186 &mut self,
9187 ranges: impl IntoIterator<Item = Range<T>>,
9188 auto_scroll: bool,
9189 cx: &mut ViewContext<Self>,
9190 ) {
9191 let mut fold_ranges = Vec::new();
9192 let mut buffers_affected = HashMap::default();
9193 let multi_buffer = self.buffer().read(cx);
9194 for range in ranges {
9195 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9196 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9197 };
9198 fold_ranges.push(range);
9199 }
9200
9201 let mut ranges = fold_ranges.into_iter().peekable();
9202 if ranges.peek().is_some() {
9203 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9204
9205 if auto_scroll {
9206 self.request_autoscroll(Autoscroll::fit(), cx);
9207 }
9208
9209 for buffer in buffers_affected.into_values() {
9210 self.sync_expanded_diff_hunks(buffer, cx);
9211 }
9212
9213 cx.notify();
9214
9215 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9216 // Clear diagnostics block when folding a range that contains it.
9217 let snapshot = self.snapshot(cx);
9218 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9219 drop(snapshot);
9220 self.active_diagnostics = Some(active_diagnostics);
9221 self.dismiss_diagnostics(cx);
9222 } else {
9223 self.active_diagnostics = Some(active_diagnostics);
9224 }
9225 }
9226 }
9227 }
9228
9229 pub fn unfold_ranges<T: ToOffset + Clone>(
9230 &mut self,
9231 ranges: impl IntoIterator<Item = Range<T>>,
9232 inclusive: bool,
9233 auto_scroll: bool,
9234 cx: &mut ViewContext<Self>,
9235 ) {
9236 let mut unfold_ranges = Vec::new();
9237 let mut buffers_affected = HashMap::default();
9238 let multi_buffer = self.buffer().read(cx);
9239 for range in ranges {
9240 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9241 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9242 };
9243 unfold_ranges.push(range);
9244 }
9245
9246 let mut ranges = unfold_ranges.into_iter().peekable();
9247 if ranges.peek().is_some() {
9248 self.display_map
9249 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9250 if auto_scroll {
9251 self.request_autoscroll(Autoscroll::fit(), cx);
9252 }
9253
9254 for buffer in buffers_affected.into_values() {
9255 self.sync_expanded_diff_hunks(buffer, cx);
9256 }
9257
9258 cx.notify();
9259 }
9260 }
9261
9262 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9263 if hovered != self.gutter_hovered {
9264 self.gutter_hovered = hovered;
9265 cx.notify();
9266 }
9267 }
9268
9269 pub fn insert_blocks(
9270 &mut self,
9271 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9272 autoscroll: Option<Autoscroll>,
9273 cx: &mut ViewContext<Self>,
9274 ) -> Vec<BlockId> {
9275 let blocks = self
9276 .display_map
9277 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9278 if let Some(autoscroll) = autoscroll {
9279 self.request_autoscroll(autoscroll, cx);
9280 }
9281 blocks
9282 }
9283
9284 pub fn replace_blocks(
9285 &mut self,
9286 blocks: HashMap<BlockId, RenderBlock>,
9287 autoscroll: Option<Autoscroll>,
9288 cx: &mut ViewContext<Self>,
9289 ) {
9290 self.display_map
9291 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9292 if let Some(autoscroll) = autoscroll {
9293 self.request_autoscroll(autoscroll, cx);
9294 }
9295 }
9296
9297 pub fn remove_blocks(
9298 &mut self,
9299 block_ids: HashSet<BlockId>,
9300 autoscroll: Option<Autoscroll>,
9301 cx: &mut ViewContext<Self>,
9302 ) {
9303 self.display_map.update(cx, |display_map, cx| {
9304 display_map.remove_blocks(block_ids, cx)
9305 });
9306 if let Some(autoscroll) = autoscroll {
9307 self.request_autoscroll(autoscroll, cx);
9308 }
9309 }
9310
9311 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
9312 self.display_map
9313 .update(cx, |map, cx| map.snapshot(cx))
9314 .longest_row()
9315 }
9316
9317 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9318 self.display_map
9319 .update(cx, |map, cx| map.snapshot(cx))
9320 .max_point()
9321 }
9322
9323 pub fn text(&self, cx: &AppContext) -> String {
9324 self.buffer.read(cx).read(cx).text()
9325 }
9326
9327 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9328 let text = self.text(cx);
9329 let text = text.trim();
9330
9331 if text.is_empty() {
9332 return None;
9333 }
9334
9335 Some(text.to_string())
9336 }
9337
9338 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9339 self.transact(cx, |this, cx| {
9340 this.buffer
9341 .read(cx)
9342 .as_singleton()
9343 .expect("you can only call set_text on editors for singleton buffers")
9344 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9345 });
9346 }
9347
9348 pub fn display_text(&self, cx: &mut AppContext) -> String {
9349 self.display_map
9350 .update(cx, |map, cx| map.snapshot(cx))
9351 .text()
9352 }
9353
9354 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9355 let mut wrap_guides = smallvec::smallvec![];
9356
9357 if self.show_wrap_guides == Some(false) {
9358 return wrap_guides;
9359 }
9360
9361 let settings = self.buffer.read(cx).settings_at(0, cx);
9362 if settings.show_wrap_guides {
9363 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9364 wrap_guides.push((soft_wrap as usize, true));
9365 }
9366 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9367 }
9368
9369 wrap_guides
9370 }
9371
9372 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9373 let settings = self.buffer.read(cx).settings_at(0, cx);
9374 let mode = self
9375 .soft_wrap_mode_override
9376 .unwrap_or_else(|| settings.soft_wrap);
9377 match mode {
9378 language_settings::SoftWrap::None => SoftWrap::None,
9379 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9380 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9381 language_settings::SoftWrap::PreferredLineLength => {
9382 SoftWrap::Column(settings.preferred_line_length)
9383 }
9384 }
9385 }
9386
9387 pub fn set_soft_wrap_mode(
9388 &mut self,
9389 mode: language_settings::SoftWrap,
9390 cx: &mut ViewContext<Self>,
9391 ) {
9392 self.soft_wrap_mode_override = Some(mode);
9393 cx.notify();
9394 }
9395
9396 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9397 let rem_size = cx.rem_size();
9398 self.display_map.update(cx, |map, cx| {
9399 map.set_font(
9400 style.text.font(),
9401 style.text.font_size.to_pixels(rem_size),
9402 cx,
9403 )
9404 });
9405 self.style = Some(style);
9406 }
9407
9408 pub fn style(&self) -> Option<&EditorStyle> {
9409 self.style.as_ref()
9410 }
9411
9412 // Called by the element. This method is not designed to be called outside of the editor
9413 // element's layout code because it does not notify when rewrapping is computed synchronously.
9414 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9415 self.display_map
9416 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9417 }
9418
9419 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9420 if self.soft_wrap_mode_override.is_some() {
9421 self.soft_wrap_mode_override.take();
9422 } else {
9423 let soft_wrap = match self.soft_wrap_mode(cx) {
9424 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9425 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9426 language_settings::SoftWrap::PreferLine
9427 }
9428 };
9429 self.soft_wrap_mode_override = Some(soft_wrap);
9430 }
9431 cx.notify();
9432 }
9433
9434 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9435 let mut editor_settings = EditorSettings::get_global(cx).clone();
9436 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9437 EditorSettings::override_global(editor_settings, cx);
9438 }
9439
9440 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9441 self.show_gutter = show_gutter;
9442 cx.notify();
9443 }
9444
9445 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9446 self.show_wrap_guides = Some(show_gutter);
9447 cx.notify();
9448 }
9449
9450 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9451 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9452 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9453 cx.reveal_path(&file.abs_path(cx));
9454 }
9455 }
9456 }
9457
9458 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9459 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9460 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9461 if let Some(path) = file.abs_path(cx).to_str() {
9462 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9463 }
9464 }
9465 }
9466 }
9467
9468 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9469 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9470 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9471 if let Some(path) = file.path().to_str() {
9472 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9473 }
9474 }
9475 }
9476 }
9477
9478 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9479 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9480
9481 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9482 self.start_git_blame(true, cx);
9483 }
9484
9485 cx.notify();
9486 }
9487
9488 pub fn toggle_git_blame_inline(
9489 &mut self,
9490 _: &ToggleGitBlameInline,
9491 cx: &mut ViewContext<Self>,
9492 ) {
9493 self.toggle_git_blame_inline_internal(true, cx);
9494 cx.notify();
9495 }
9496
9497 pub fn git_blame_inline_enabled(&self) -> bool {
9498 self.git_blame_inline_enabled
9499 }
9500
9501 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9502 if let Some(project) = self.project.as_ref() {
9503 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9504 return;
9505 };
9506
9507 if buffer.read(cx).file().is_none() {
9508 return;
9509 }
9510
9511 let focused = self.focus_handle(cx).contains_focused(cx);
9512
9513 let project = project.clone();
9514 let blame =
9515 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9516 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9517 self.blame = Some(blame);
9518 }
9519 }
9520
9521 fn toggle_git_blame_inline_internal(
9522 &mut self,
9523 user_triggered: bool,
9524 cx: &mut ViewContext<Self>,
9525 ) {
9526 if self.git_blame_inline_enabled {
9527 self.git_blame_inline_enabled = false;
9528 self.show_git_blame_inline = false;
9529 self.show_git_blame_inline_delay_task.take();
9530 } else {
9531 self.git_blame_inline_enabled = true;
9532 self.start_git_blame_inline(user_triggered, cx);
9533 }
9534
9535 cx.notify();
9536 }
9537
9538 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9539 self.start_git_blame(user_triggered, cx);
9540
9541 if ProjectSettings::get_global(cx)
9542 .git
9543 .inline_blame_delay()
9544 .is_some()
9545 {
9546 self.start_inline_blame_timer(cx);
9547 } else {
9548 self.show_git_blame_inline = true
9549 }
9550 }
9551
9552 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9553 self.blame.as_ref()
9554 }
9555
9556 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9557 self.show_git_blame_gutter && self.has_blame_entries(cx)
9558 }
9559
9560 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9561 self.show_git_blame_inline
9562 && self.focus_handle.is_focused(cx)
9563 && !self.newest_selection_head_on_empty_line(cx)
9564 && self.has_blame_entries(cx)
9565 }
9566
9567 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9568 self.blame()
9569 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9570 }
9571
9572 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9573 let cursor_anchor = self.selections.newest_anchor().head();
9574
9575 let snapshot = self.buffer.read(cx).snapshot(cx);
9576 let buffer_row = cursor_anchor.to_point(&snapshot).row;
9577
9578 snapshot.line_len(buffer_row) == 0
9579 }
9580
9581 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9582 let (path, repo) = maybe!({
9583 let project_handle = self.project.as_ref()?.clone();
9584 let project = project_handle.read(cx);
9585 let buffer = self.buffer().read(cx).as_singleton()?;
9586 let path = buffer
9587 .read(cx)
9588 .file()?
9589 .as_local()?
9590 .path()
9591 .to_str()?
9592 .to_string();
9593 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9594 Some((path, repo))
9595 })
9596 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9597
9598 const REMOTE_NAME: &str = "origin";
9599 let origin_url = repo
9600 .lock()
9601 .remote_url(REMOTE_NAME)
9602 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9603 let sha = repo
9604 .lock()
9605 .head_sha()
9606 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9607 let selections = self.selections.all::<Point>(cx);
9608 let selection = selections.iter().peekable().next();
9609
9610 let (provider, remote) =
9611 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9612 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9613
9614 Ok(provider.build_permalink(
9615 remote,
9616 BuildPermalinkParams {
9617 sha: &sha,
9618 path: &path,
9619 selection: selection.map(|selection| {
9620 let range = selection.range();
9621 let start = range.start.row;
9622 let end = range.end.row;
9623 start..end
9624 }),
9625 },
9626 ))
9627 }
9628
9629 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9630 let permalink = self.get_permalink_to_line(cx);
9631
9632 match permalink {
9633 Ok(permalink) => {
9634 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9635 }
9636 Err(err) => {
9637 let message = format!("Failed to copy permalink: {err}");
9638
9639 Err::<(), anyhow::Error>(err).log_err();
9640
9641 if let Some(workspace) = self.workspace() {
9642 workspace.update(cx, |workspace, cx| {
9643 struct CopyPermalinkToLine;
9644
9645 workspace.show_toast(
9646 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9647 cx,
9648 )
9649 })
9650 }
9651 }
9652 }
9653 }
9654
9655 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9656 let permalink = self.get_permalink_to_line(cx);
9657
9658 match permalink {
9659 Ok(permalink) => {
9660 cx.open_url(permalink.as_ref());
9661 }
9662 Err(err) => {
9663 let message = format!("Failed to open permalink: {err}");
9664
9665 Err::<(), anyhow::Error>(err).log_err();
9666
9667 if let Some(workspace) = self.workspace() {
9668 workspace.update(cx, |workspace, cx| {
9669 struct OpenPermalinkToLine;
9670
9671 workspace.show_toast(
9672 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9673 cx,
9674 )
9675 })
9676 }
9677 }
9678 }
9679 }
9680
9681 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9682 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9683 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9684 pub fn highlight_rows<T: 'static>(
9685 &mut self,
9686 rows: Range<Anchor>,
9687 color: Option<Hsla>,
9688 cx: &mut ViewContext<Self>,
9689 ) {
9690 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9691 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9692 hash_map::Entry::Occupied(o) => {
9693 let row_highlights = o.into_mut();
9694 let existing_highlight_index =
9695 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9696 highlight_range
9697 .start
9698 .cmp(&rows.start, &multi_buffer_snapshot)
9699 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
9700 });
9701 match color {
9702 Some(color) => {
9703 let insert_index = match existing_highlight_index {
9704 Ok(i) => i,
9705 Err(i) => i,
9706 };
9707 row_highlights.insert(
9708 insert_index,
9709 (post_inc(&mut self.highlight_order), rows, color),
9710 );
9711 }
9712 None => {
9713 if let Ok(i) = existing_highlight_index {
9714 row_highlights.remove(i);
9715 }
9716 }
9717 }
9718 }
9719 hash_map::Entry::Vacant(v) => {
9720 if let Some(color) = color {
9721 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9722 }
9723 }
9724 }
9725 }
9726
9727 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9728 pub fn clear_row_highlights<T: 'static>(&mut self) {
9729 self.highlighted_rows.remove(&TypeId::of::<T>());
9730 }
9731
9732 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9733 pub fn highlighted_rows<T: 'static>(
9734 &self,
9735 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9736 Some(
9737 self.highlighted_rows
9738 .get(&TypeId::of::<T>())?
9739 .iter()
9740 .map(|(_, range, color)| (range, color)),
9741 )
9742 }
9743
9744 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9745 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9746 /// Allows to ignore certain kinds of highlights.
9747 pub fn highlighted_display_rows(
9748 &mut self,
9749 exclude_highlights: HashSet<TypeId>,
9750 cx: &mut WindowContext,
9751 ) -> BTreeMap<u32, Hsla> {
9752 let snapshot = self.snapshot(cx);
9753 let mut used_highlight_orders = HashMap::default();
9754 self.highlighted_rows
9755 .iter()
9756 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9757 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9758 .fold(
9759 BTreeMap::<u32, Hsla>::new(),
9760 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9761 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9762 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9763 for row in start_row..=end_row {
9764 let used_index =
9765 used_highlight_orders.entry(row).or_insert(*highlight_order);
9766 if highlight_order >= used_index {
9767 *used_index = *highlight_order;
9768 unique_rows.insert(row, *hsla);
9769 }
9770 }
9771 unique_rows
9772 },
9773 )
9774 }
9775
9776 pub fn set_search_within_ranges(
9777 &mut self,
9778 ranges: &[Range<Anchor>],
9779 cx: &mut ViewContext<Self>,
9780 ) {
9781 self.highlight_background::<SearchWithinRange>(
9782 ranges,
9783 |colors| colors.editor_document_highlight_read_background,
9784 cx,
9785 )
9786 }
9787
9788 pub fn highlight_background<T: 'static>(
9789 &mut self,
9790 ranges: &[Range<Anchor>],
9791 color_fetcher: fn(&ThemeColors) -> Hsla,
9792 cx: &mut ViewContext<Self>,
9793 ) {
9794 let snapshot = self.snapshot(cx);
9795 // this is to try and catch a panic sooner
9796 for range in ranges {
9797 snapshot
9798 .buffer_snapshot
9799 .summary_for_anchor::<usize>(&range.start);
9800 snapshot
9801 .buffer_snapshot
9802 .summary_for_anchor::<usize>(&range.end);
9803 }
9804
9805 self.background_highlights
9806 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9807 self.scrollbar_marker_state.dirty = true;
9808 cx.notify();
9809 }
9810
9811 pub fn clear_background_highlights<T: 'static>(
9812 &mut self,
9813 cx: &mut ViewContext<Self>,
9814 ) -> Option<BackgroundHighlight> {
9815 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9816 if !text_highlights.1.is_empty() {
9817 self.scrollbar_marker_state.dirty = true;
9818 cx.notify();
9819 }
9820 Some(text_highlights)
9821 }
9822
9823 #[cfg(feature = "test-support")]
9824 pub fn all_text_background_highlights(
9825 &mut self,
9826 cx: &mut ViewContext<Self>,
9827 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9828 let snapshot = self.snapshot(cx);
9829 let buffer = &snapshot.buffer_snapshot;
9830 let start = buffer.anchor_before(0);
9831 let end = buffer.anchor_after(buffer.len());
9832 let theme = cx.theme().colors();
9833 self.background_highlights_in_range(start..end, &snapshot, theme)
9834 }
9835
9836 fn document_highlights_for_position<'a>(
9837 &'a self,
9838 position: Anchor,
9839 buffer: &'a MultiBufferSnapshot,
9840 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9841 let read_highlights = self
9842 .background_highlights
9843 .get(&TypeId::of::<DocumentHighlightRead>())
9844 .map(|h| &h.1);
9845 let write_highlights = self
9846 .background_highlights
9847 .get(&TypeId::of::<DocumentHighlightWrite>())
9848 .map(|h| &h.1);
9849 let left_position = position.bias_left(buffer);
9850 let right_position = position.bias_right(buffer);
9851 read_highlights
9852 .into_iter()
9853 .chain(write_highlights)
9854 .flat_map(move |ranges| {
9855 let start_ix = match ranges.binary_search_by(|probe| {
9856 let cmp = probe.end.cmp(&left_position, buffer);
9857 if cmp.is_ge() {
9858 Ordering::Greater
9859 } else {
9860 Ordering::Less
9861 }
9862 }) {
9863 Ok(i) | Err(i) => i,
9864 };
9865
9866 ranges[start_ix..]
9867 .iter()
9868 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9869 })
9870 }
9871
9872 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9873 self.background_highlights
9874 .get(&TypeId::of::<T>())
9875 .map_or(false, |(_, highlights)| !highlights.is_empty())
9876 }
9877
9878 pub fn background_highlights_in_range(
9879 &self,
9880 search_range: Range<Anchor>,
9881 display_snapshot: &DisplaySnapshot,
9882 theme: &ThemeColors,
9883 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9884 let mut results = Vec::new();
9885 for (color_fetcher, ranges) in self.background_highlights.values() {
9886 let color = color_fetcher(theme);
9887 let start_ix = match ranges.binary_search_by(|probe| {
9888 let cmp = probe
9889 .end
9890 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9891 if cmp.is_gt() {
9892 Ordering::Greater
9893 } else {
9894 Ordering::Less
9895 }
9896 }) {
9897 Ok(i) | Err(i) => i,
9898 };
9899 for range in &ranges[start_ix..] {
9900 if range
9901 .start
9902 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9903 .is_ge()
9904 {
9905 break;
9906 }
9907
9908 let start = range.start.to_display_point(&display_snapshot);
9909 let end = range.end.to_display_point(&display_snapshot);
9910 results.push((start..end, color))
9911 }
9912 }
9913 results
9914 }
9915
9916 pub fn background_highlight_row_ranges<T: 'static>(
9917 &self,
9918 search_range: Range<Anchor>,
9919 display_snapshot: &DisplaySnapshot,
9920 count: usize,
9921 ) -> Vec<RangeInclusive<DisplayPoint>> {
9922 let mut results = Vec::new();
9923 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9924 return vec![];
9925 };
9926
9927 let start_ix = match ranges.binary_search_by(|probe| {
9928 let cmp = probe
9929 .end
9930 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9931 if cmp.is_gt() {
9932 Ordering::Greater
9933 } else {
9934 Ordering::Less
9935 }
9936 }) {
9937 Ok(i) | Err(i) => i,
9938 };
9939 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9940 if let (Some(start_display), Some(end_display)) = (start, end) {
9941 results.push(
9942 start_display.to_display_point(display_snapshot)
9943 ..=end_display.to_display_point(display_snapshot),
9944 );
9945 }
9946 };
9947 let mut start_row: Option<Point> = None;
9948 let mut end_row: Option<Point> = None;
9949 if ranges.len() > count {
9950 return Vec::new();
9951 }
9952 for range in &ranges[start_ix..] {
9953 if range
9954 .start
9955 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9956 .is_ge()
9957 {
9958 break;
9959 }
9960 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9961 if let Some(current_row) = &end_row {
9962 if end.row == current_row.row {
9963 continue;
9964 }
9965 }
9966 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9967 if start_row.is_none() {
9968 assert_eq!(end_row, None);
9969 start_row = Some(start);
9970 end_row = Some(end);
9971 continue;
9972 }
9973 if let Some(current_end) = end_row.as_mut() {
9974 if start.row > current_end.row + 1 {
9975 push_region(start_row, end_row);
9976 start_row = Some(start);
9977 end_row = Some(end);
9978 } else {
9979 // Merge two hunks.
9980 *current_end = end;
9981 }
9982 } else {
9983 unreachable!();
9984 }
9985 }
9986 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9987 push_region(start_row, end_row);
9988 results
9989 }
9990
9991 /// Get the text ranges corresponding to the redaction query
9992 pub fn redacted_ranges(
9993 &self,
9994 search_range: Range<Anchor>,
9995 display_snapshot: &DisplaySnapshot,
9996 cx: &WindowContext,
9997 ) -> Vec<Range<DisplayPoint>> {
9998 display_snapshot
9999 .buffer_snapshot
10000 .redacted_ranges(search_range, |file| {
10001 if let Some(file) = file {
10002 file.is_private()
10003 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10004 } else {
10005 false
10006 }
10007 })
10008 .map(|range| {
10009 range.start.to_display_point(display_snapshot)
10010 ..range.end.to_display_point(display_snapshot)
10011 })
10012 .collect()
10013 }
10014
10015 pub fn highlight_text<T: 'static>(
10016 &mut self,
10017 ranges: Vec<Range<Anchor>>,
10018 style: HighlightStyle,
10019 cx: &mut ViewContext<Self>,
10020 ) {
10021 self.display_map.update(cx, |map, _| {
10022 map.highlight_text(TypeId::of::<T>(), ranges, style)
10023 });
10024 cx.notify();
10025 }
10026
10027 pub(crate) fn highlight_inlays<T: 'static>(
10028 &mut self,
10029 highlights: Vec<InlayHighlight>,
10030 style: HighlightStyle,
10031 cx: &mut ViewContext<Self>,
10032 ) {
10033 self.display_map.update(cx, |map, _| {
10034 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10035 });
10036 cx.notify();
10037 }
10038
10039 pub fn text_highlights<'a, T: 'static>(
10040 &'a self,
10041 cx: &'a AppContext,
10042 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10043 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10044 }
10045
10046 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10047 let cleared = self
10048 .display_map
10049 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10050 if cleared {
10051 cx.notify();
10052 }
10053 }
10054
10055 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10056 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10057 && self.focus_handle.is_focused(cx)
10058 }
10059
10060 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10061 cx.notify();
10062 }
10063
10064 fn on_buffer_event(
10065 &mut self,
10066 multibuffer: Model<MultiBuffer>,
10067 event: &multi_buffer::Event,
10068 cx: &mut ViewContext<Self>,
10069 ) {
10070 match event {
10071 multi_buffer::Event::Edited {
10072 singleton_buffer_edited,
10073 } => {
10074 self.scrollbar_marker_state.dirty = true;
10075 self.refresh_active_diagnostics(cx);
10076 self.refresh_code_actions(cx);
10077 if self.has_active_inline_completion(cx) {
10078 self.update_visible_inline_completion(cx);
10079 }
10080 cx.emit(EditorEvent::BufferEdited);
10081 cx.emit(SearchEvent::MatchesInvalidated);
10082
10083 if *singleton_buffer_edited {
10084 if let Some(project) = &self.project {
10085 let project = project.read(cx);
10086 let languages_affected = multibuffer
10087 .read(cx)
10088 .all_buffers()
10089 .into_iter()
10090 .filter_map(|buffer| {
10091 let buffer = buffer.read(cx);
10092 let language = buffer.language()?;
10093 if project.is_local()
10094 && project.language_servers_for_buffer(buffer, cx).count() == 0
10095 {
10096 None
10097 } else {
10098 Some(language)
10099 }
10100 })
10101 .cloned()
10102 .collect::<HashSet<_>>();
10103 if !languages_affected.is_empty() {
10104 self.refresh_inlay_hints(
10105 InlayHintRefreshReason::BufferEdited(languages_affected),
10106 cx,
10107 );
10108 }
10109 }
10110 }
10111
10112 let Some(project) = &self.project else { return };
10113 let telemetry = project.read(cx).client().telemetry().clone();
10114 telemetry.log_edit_event("editor");
10115 }
10116 multi_buffer::Event::ExcerptsAdded {
10117 buffer,
10118 predecessor,
10119 excerpts,
10120 } => {
10121 cx.emit(EditorEvent::ExcerptsAdded {
10122 buffer: buffer.clone(),
10123 predecessor: *predecessor,
10124 excerpts: excerpts.clone(),
10125 });
10126 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10127 }
10128 multi_buffer::Event::ExcerptsRemoved { ids } => {
10129 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10130 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10131 }
10132 multi_buffer::Event::Reparsed => {
10133 self.tasks_update_task = Some(self.refresh_runnables(cx));
10134
10135 cx.emit(EditorEvent::Reparsed);
10136 }
10137 multi_buffer::Event::LanguageChanged => {
10138 cx.emit(EditorEvent::Reparsed);
10139 cx.notify();
10140 }
10141 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10142 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10143 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10144 cx.emit(EditorEvent::TitleChanged)
10145 }
10146 multi_buffer::Event::DiffBaseChanged => {
10147 self.scrollbar_marker_state.dirty = true;
10148 cx.emit(EditorEvent::DiffBaseChanged);
10149 cx.notify();
10150 }
10151 multi_buffer::Event::DiffUpdated { buffer } => {
10152 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10153 cx.notify();
10154 }
10155 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10156 multi_buffer::Event::DiagnosticsUpdated => {
10157 self.refresh_active_diagnostics(cx);
10158 self.scrollbar_marker_state.dirty = true;
10159 cx.notify();
10160 }
10161 _ => {}
10162 };
10163 }
10164
10165 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10166 cx.notify();
10167 }
10168
10169 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10170 self.refresh_inline_completion(true, cx);
10171 self.refresh_inlay_hints(
10172 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10173 self.selections.newest_anchor().head(),
10174 &self.buffer.read(cx).snapshot(cx),
10175 cx,
10176 )),
10177 cx,
10178 );
10179 let editor_settings = EditorSettings::get_global(cx);
10180 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10181 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10182
10183 if self.mode == EditorMode::Full {
10184 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10185 if self.git_blame_inline_enabled != inline_blame_enabled {
10186 self.toggle_git_blame_inline_internal(false, cx);
10187 }
10188 }
10189
10190 cx.notify();
10191 }
10192
10193 pub fn set_searchable(&mut self, searchable: bool) {
10194 self.searchable = searchable;
10195 }
10196
10197 pub fn searchable(&self) -> bool {
10198 self.searchable
10199 }
10200
10201 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10202 self.open_excerpts_common(true, cx)
10203 }
10204
10205 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10206 self.open_excerpts_common(false, cx)
10207 }
10208
10209 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10210 let buffer = self.buffer.read(cx);
10211 if buffer.is_singleton() {
10212 cx.propagate();
10213 return;
10214 }
10215
10216 let Some(workspace) = self.workspace() else {
10217 cx.propagate();
10218 return;
10219 };
10220
10221 let mut new_selections_by_buffer = HashMap::default();
10222 for selection in self.selections.all::<usize>(cx) {
10223 for (buffer, mut range, _) in
10224 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10225 {
10226 if selection.reversed {
10227 mem::swap(&mut range.start, &mut range.end);
10228 }
10229 new_selections_by_buffer
10230 .entry(buffer)
10231 .or_insert(Vec::new())
10232 .push(range)
10233 }
10234 }
10235
10236 // We defer the pane interaction because we ourselves are a workspace item
10237 // and activating a new item causes the pane to call a method on us reentrantly,
10238 // which panics if we're on the stack.
10239 cx.window_context().defer(move |cx| {
10240 workspace.update(cx, |workspace, cx| {
10241 let pane = if split {
10242 workspace.adjacent_pane(cx)
10243 } else {
10244 workspace.active_pane().clone()
10245 };
10246
10247 for (buffer, ranges) in new_selections_by_buffer {
10248 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10249 editor.update(cx, |editor, cx| {
10250 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10251 s.select_ranges(ranges);
10252 });
10253 });
10254 }
10255 })
10256 });
10257 }
10258
10259 fn jump(
10260 &mut self,
10261 path: ProjectPath,
10262 position: Point,
10263 anchor: language::Anchor,
10264 offset_from_top: u32,
10265 cx: &mut ViewContext<Self>,
10266 ) {
10267 let workspace = self.workspace();
10268 cx.spawn(|_, mut cx| async move {
10269 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10270 let editor = workspace.update(&mut cx, |workspace, cx| {
10271 // Reset the preview item id before opening the new item
10272 workspace.active_pane().update(cx, |pane, cx| {
10273 pane.set_preview_item_id(None, cx);
10274 });
10275 workspace.open_path_preview(path, None, true, true, cx)
10276 })?;
10277 let editor = editor
10278 .await?
10279 .downcast::<Editor>()
10280 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10281 .downgrade();
10282 editor.update(&mut cx, |editor, cx| {
10283 let buffer = editor
10284 .buffer()
10285 .read(cx)
10286 .as_singleton()
10287 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10288 let buffer = buffer.read(cx);
10289 let cursor = if buffer.can_resolve(&anchor) {
10290 language::ToPoint::to_point(&anchor, buffer)
10291 } else {
10292 buffer.clip_point(position, Bias::Left)
10293 };
10294
10295 let nav_history = editor.nav_history.take();
10296 editor.change_selections(
10297 Some(Autoscroll::top_relative(offset_from_top as usize)),
10298 cx,
10299 |s| {
10300 s.select_ranges([cursor..cursor]);
10301 },
10302 );
10303 editor.nav_history = nav_history;
10304
10305 anyhow::Ok(())
10306 })??;
10307
10308 anyhow::Ok(())
10309 })
10310 .detach_and_log_err(cx);
10311 }
10312
10313 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10314 let snapshot = self.buffer.read(cx).read(cx);
10315 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10316 Some(
10317 ranges
10318 .iter()
10319 .map(move |range| {
10320 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10321 })
10322 .collect(),
10323 )
10324 }
10325
10326 fn selection_replacement_ranges(
10327 &self,
10328 range: Range<OffsetUtf16>,
10329 cx: &AppContext,
10330 ) -> Vec<Range<OffsetUtf16>> {
10331 let selections = self.selections.all::<OffsetUtf16>(cx);
10332 let newest_selection = selections
10333 .iter()
10334 .max_by_key(|selection| selection.id)
10335 .unwrap();
10336 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10337 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10338 let snapshot = self.buffer.read(cx).read(cx);
10339 selections
10340 .into_iter()
10341 .map(|mut selection| {
10342 selection.start.0 =
10343 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10344 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10345 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10346 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10347 })
10348 .collect()
10349 }
10350
10351 fn report_editor_event(
10352 &self,
10353 operation: &'static str,
10354 file_extension: Option<String>,
10355 cx: &AppContext,
10356 ) {
10357 if cfg!(any(test, feature = "test-support")) {
10358 return;
10359 }
10360
10361 let Some(project) = &self.project else { return };
10362
10363 // If None, we are in a file without an extension
10364 let file = self
10365 .buffer
10366 .read(cx)
10367 .as_singleton()
10368 .and_then(|b| b.read(cx).file());
10369 let file_extension = file_extension.or(file
10370 .as_ref()
10371 .and_then(|file| Path::new(file.file_name(cx)).extension())
10372 .and_then(|e| e.to_str())
10373 .map(|a| a.to_string()));
10374
10375 let vim_mode = cx
10376 .global::<SettingsStore>()
10377 .raw_user_settings()
10378 .get("vim_mode")
10379 == Some(&serde_json::Value::Bool(true));
10380
10381 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10382 == language::language_settings::InlineCompletionProvider::Copilot;
10383 let copilot_enabled_for_language = self
10384 .buffer
10385 .read(cx)
10386 .settings_at(0, cx)
10387 .show_inline_completions;
10388
10389 let telemetry = project.read(cx).client().telemetry().clone();
10390 telemetry.report_editor_event(
10391 file_extension,
10392 vim_mode,
10393 operation,
10394 copilot_enabled,
10395 copilot_enabled_for_language,
10396 )
10397 }
10398
10399 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10400 /// with each line being an array of {text, highlight} objects.
10401 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10402 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10403 return;
10404 };
10405
10406 #[derive(Serialize)]
10407 struct Chunk<'a> {
10408 text: String,
10409 highlight: Option<&'a str>,
10410 }
10411
10412 let snapshot = buffer.read(cx).snapshot();
10413 let range = self
10414 .selected_text_range(cx)
10415 .and_then(|selected_range| {
10416 if selected_range.is_empty() {
10417 None
10418 } else {
10419 Some(selected_range)
10420 }
10421 })
10422 .unwrap_or_else(|| 0..snapshot.len());
10423
10424 let chunks = snapshot.chunks(range, true);
10425 let mut lines = Vec::new();
10426 let mut line: VecDeque<Chunk> = VecDeque::new();
10427
10428 let Some(style) = self.style.as_ref() else {
10429 return;
10430 };
10431
10432 for chunk in chunks {
10433 let highlight = chunk
10434 .syntax_highlight_id
10435 .and_then(|id| id.name(&style.syntax));
10436 let mut chunk_lines = chunk.text.split('\n').peekable();
10437 while let Some(text) = chunk_lines.next() {
10438 let mut merged_with_last_token = false;
10439 if let Some(last_token) = line.back_mut() {
10440 if last_token.highlight == highlight {
10441 last_token.text.push_str(text);
10442 merged_with_last_token = true;
10443 }
10444 }
10445
10446 if !merged_with_last_token {
10447 line.push_back(Chunk {
10448 text: text.into(),
10449 highlight,
10450 });
10451 }
10452
10453 if chunk_lines.peek().is_some() {
10454 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10455 line.pop_front();
10456 }
10457 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10458 line.pop_back();
10459 }
10460
10461 lines.push(mem::take(&mut line));
10462 }
10463 }
10464 }
10465
10466 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10467 return;
10468 };
10469 cx.write_to_clipboard(ClipboardItem::new(lines));
10470 }
10471
10472 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10473 &self.inlay_hint_cache
10474 }
10475
10476 pub fn replay_insert_event(
10477 &mut self,
10478 text: &str,
10479 relative_utf16_range: Option<Range<isize>>,
10480 cx: &mut ViewContext<Self>,
10481 ) {
10482 if !self.input_enabled {
10483 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10484 return;
10485 }
10486 if let Some(relative_utf16_range) = relative_utf16_range {
10487 let selections = self.selections.all::<OffsetUtf16>(cx);
10488 self.change_selections(None, cx, |s| {
10489 let new_ranges = selections.into_iter().map(|range| {
10490 let start = OffsetUtf16(
10491 range
10492 .head()
10493 .0
10494 .saturating_add_signed(relative_utf16_range.start),
10495 );
10496 let end = OffsetUtf16(
10497 range
10498 .head()
10499 .0
10500 .saturating_add_signed(relative_utf16_range.end),
10501 );
10502 start..end
10503 });
10504 s.select_ranges(new_ranges);
10505 });
10506 }
10507
10508 self.handle_input(text, cx);
10509 }
10510
10511 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10512 let Some(project) = self.project.as_ref() else {
10513 return false;
10514 };
10515 let project = project.read(cx);
10516
10517 let mut supports = false;
10518 self.buffer().read(cx).for_each_buffer(|buffer| {
10519 if !supports {
10520 supports = project
10521 .language_servers_for_buffer(buffer.read(cx), cx)
10522 .any(
10523 |(_, server)| match server.capabilities().inlay_hint_provider {
10524 Some(lsp::OneOf::Left(enabled)) => enabled,
10525 Some(lsp::OneOf::Right(_)) => true,
10526 None => false,
10527 },
10528 )
10529 }
10530 });
10531 supports
10532 }
10533
10534 pub fn focus(&self, cx: &mut WindowContext) {
10535 cx.focus(&self.focus_handle)
10536 }
10537
10538 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10539 self.focus_handle.is_focused(cx)
10540 }
10541
10542 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10543 cx.emit(EditorEvent::Focused);
10544
10545 if let Some(rename) = self.pending_rename.as_ref() {
10546 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10547 cx.focus(&rename_editor_focus_handle);
10548 } else {
10549 if let Some(blame) = self.blame.as_ref() {
10550 blame.update(cx, GitBlame::focus)
10551 }
10552
10553 self.blink_manager.update(cx, BlinkManager::enable);
10554 self.show_cursor_names(cx);
10555 self.buffer.update(cx, |buffer, cx| {
10556 buffer.finalize_last_transaction(cx);
10557 if self.leader_peer_id.is_none() {
10558 buffer.set_active_selections(
10559 &self.selections.disjoint_anchors(),
10560 self.selections.line_mode,
10561 self.cursor_shape,
10562 cx,
10563 );
10564 }
10565 });
10566 }
10567 }
10568
10569 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10570 self.blink_manager.update(cx, BlinkManager::disable);
10571 self.buffer
10572 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10573
10574 if let Some(blame) = self.blame.as_ref() {
10575 blame.update(cx, GitBlame::blur)
10576 }
10577 self.hide_context_menu(cx);
10578 hide_hover(self, cx);
10579 cx.emit(EditorEvent::Blurred);
10580 cx.notify();
10581 }
10582
10583 pub fn register_action<A: Action>(
10584 &mut self,
10585 listener: impl Fn(&A, &mut WindowContext) + 'static,
10586 ) -> &mut Self {
10587 let listener = Arc::new(listener);
10588
10589 self.editor_actions.push(Box::new(move |cx| {
10590 let _view = cx.view().clone();
10591 let cx = cx.window_context();
10592 let listener = listener.clone();
10593 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10594 let action = action.downcast_ref().unwrap();
10595 if phase == DispatchPhase::Bubble {
10596 listener(action, cx)
10597 }
10598 })
10599 }));
10600 self
10601 }
10602}
10603
10604fn hunks_for_selections(
10605 multi_buffer_snapshot: &MultiBufferSnapshot,
10606 selections: &[Selection<Anchor>],
10607) -> Vec<DiffHunk<u32>> {
10608 let mut hunks = Vec::with_capacity(selections.len());
10609 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10610 HashMap::default();
10611 let display_rows_for_selections = selections.iter().map(|selection| {
10612 let head = selection.head();
10613 let tail = selection.tail();
10614 let start = tail.to_point(&multi_buffer_snapshot).row;
10615 let end = head.to_point(&multi_buffer_snapshot).row;
10616 if start > end {
10617 end..start
10618 } else {
10619 start..end
10620 }
10621 });
10622
10623 for selected_multi_buffer_rows in display_rows_for_selections {
10624 let query_rows = selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
10625 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10626 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10627 // when the caret is just above or just below the deleted hunk.
10628 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
10629 let related_to_selection = if allow_adjacent {
10630 hunk.associated_range.overlaps(&query_rows)
10631 || hunk.associated_range.start == query_rows.end
10632 || hunk.associated_range.end == query_rows.start
10633 } else {
10634 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10635 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10636 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10637 || selected_multi_buffer_rows.end == hunk.associated_range.start
10638 };
10639 if related_to_selection {
10640 if !processed_buffer_rows
10641 .entry(hunk.buffer_id)
10642 .or_default()
10643 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10644 {
10645 continue;
10646 }
10647 hunks.push(hunk);
10648 }
10649 }
10650 }
10651
10652 hunks
10653}
10654
10655pub trait CollaborationHub {
10656 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10657 fn user_participant_indices<'a>(
10658 &self,
10659 cx: &'a AppContext,
10660 ) -> &'a HashMap<u64, ParticipantIndex>;
10661 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10662}
10663
10664impl CollaborationHub for Model<Project> {
10665 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10666 self.read(cx).collaborators()
10667 }
10668
10669 fn user_participant_indices<'a>(
10670 &self,
10671 cx: &'a AppContext,
10672 ) -> &'a HashMap<u64, ParticipantIndex> {
10673 self.read(cx).user_store().read(cx).participant_indices()
10674 }
10675
10676 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10677 let this = self.read(cx);
10678 let user_ids = this.collaborators().values().map(|c| c.user_id);
10679 this.user_store().read_with(cx, |user_store, cx| {
10680 user_store.participant_names(user_ids, cx)
10681 })
10682 }
10683}
10684
10685pub trait CompletionProvider {
10686 fn completions(
10687 &self,
10688 buffer: &Model<Buffer>,
10689 buffer_position: text::Anchor,
10690 cx: &mut ViewContext<Editor>,
10691 ) -> Task<Result<Vec<Completion>>>;
10692
10693 fn resolve_completions(
10694 &self,
10695 buffer: Model<Buffer>,
10696 completion_indices: Vec<usize>,
10697 completions: Arc<RwLock<Box<[Completion]>>>,
10698 cx: &mut ViewContext<Editor>,
10699 ) -> Task<Result<bool>>;
10700
10701 fn apply_additional_edits_for_completion(
10702 &self,
10703 buffer: Model<Buffer>,
10704 completion: Completion,
10705 push_to_history: bool,
10706 cx: &mut ViewContext<Editor>,
10707 ) -> Task<Result<Option<language::Transaction>>>;
10708}
10709
10710impl CompletionProvider for Model<Project> {
10711 fn completions(
10712 &self,
10713 buffer: &Model<Buffer>,
10714 buffer_position: text::Anchor,
10715 cx: &mut ViewContext<Editor>,
10716 ) -> Task<Result<Vec<Completion>>> {
10717 self.update(cx, |project, cx| {
10718 project.completions(&buffer, buffer_position, cx)
10719 })
10720 }
10721
10722 fn resolve_completions(
10723 &self,
10724 buffer: Model<Buffer>,
10725 completion_indices: Vec<usize>,
10726 completions: Arc<RwLock<Box<[Completion]>>>,
10727 cx: &mut ViewContext<Editor>,
10728 ) -> Task<Result<bool>> {
10729 self.update(cx, |project, cx| {
10730 project.resolve_completions(buffer, completion_indices, completions, cx)
10731 })
10732 }
10733
10734 fn apply_additional_edits_for_completion(
10735 &self,
10736 buffer: Model<Buffer>,
10737 completion: Completion,
10738 push_to_history: bool,
10739 cx: &mut ViewContext<Editor>,
10740 ) -> Task<Result<Option<language::Transaction>>> {
10741 self.update(cx, |project, cx| {
10742 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10743 })
10744 }
10745}
10746
10747fn inlay_hint_settings(
10748 location: Anchor,
10749 snapshot: &MultiBufferSnapshot,
10750 cx: &mut ViewContext<'_, Editor>,
10751) -> InlayHintSettings {
10752 let file = snapshot.file_at(location);
10753 let language = snapshot.language_at(location);
10754 let settings = all_language_settings(file, cx);
10755 settings
10756 .language(language.map(|l| l.name()).as_deref())
10757 .inlay_hints
10758}
10759
10760fn consume_contiguous_rows(
10761 contiguous_row_selections: &mut Vec<Selection<Point>>,
10762 selection: &Selection<Point>,
10763 display_map: &DisplaySnapshot,
10764 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10765) -> (u32, u32) {
10766 contiguous_row_selections.push(selection.clone());
10767 let start_row = selection.start.row;
10768 let mut end_row = ending_row(selection, display_map);
10769
10770 while let Some(next_selection) = selections.peek() {
10771 if next_selection.start.row <= end_row {
10772 end_row = ending_row(next_selection, display_map);
10773 contiguous_row_selections.push(selections.next().unwrap().clone());
10774 } else {
10775 break;
10776 }
10777 }
10778 (start_row, end_row)
10779}
10780
10781fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10782 if next_selection.end.column > 0 || next_selection.is_empty() {
10783 display_map.next_line_boundary(next_selection.end).0.row + 1
10784 } else {
10785 next_selection.end.row
10786 }
10787}
10788
10789impl EditorSnapshot {
10790 pub fn remote_selections_in_range<'a>(
10791 &'a self,
10792 range: &'a Range<Anchor>,
10793 collaboration_hub: &dyn CollaborationHub,
10794 cx: &'a AppContext,
10795 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10796 let participant_names = collaboration_hub.user_names(cx);
10797 let participant_indices = collaboration_hub.user_participant_indices(cx);
10798 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10799 let collaborators_by_replica_id = collaborators_by_peer_id
10800 .iter()
10801 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10802 .collect::<HashMap<_, _>>();
10803 self.buffer_snapshot
10804 .remote_selections_in_range(range)
10805 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10806 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10807 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10808 let user_name = participant_names.get(&collaborator.user_id).cloned();
10809 Some(RemoteSelection {
10810 replica_id,
10811 selection,
10812 cursor_shape,
10813 line_mode,
10814 participant_index,
10815 peer_id: collaborator.peer_id,
10816 user_name,
10817 })
10818 })
10819 }
10820
10821 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10822 self.display_snapshot.buffer_snapshot.language_at(position)
10823 }
10824
10825 pub fn is_focused(&self) -> bool {
10826 self.is_focused
10827 }
10828
10829 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10830 self.placeholder_text.as_ref()
10831 }
10832
10833 pub fn scroll_position(&self) -> gpui::Point<f32> {
10834 self.scroll_anchor.scroll_position(&self.display_snapshot)
10835 }
10836
10837 pub fn gutter_dimensions(
10838 &self,
10839 font_id: FontId,
10840 font_size: Pixels,
10841 em_width: Pixels,
10842 max_line_number_width: Pixels,
10843 cx: &AppContext,
10844 ) -> GutterDimensions {
10845 if !self.show_gutter {
10846 return GutterDimensions::default();
10847 }
10848 let descent = cx.text_system().descent(font_id, font_size);
10849
10850 let show_git_gutter = matches!(
10851 ProjectSettings::get_global(cx).git.git_gutter,
10852 Some(GitGutterSetting::TrackedFiles)
10853 );
10854 let gutter_settings = EditorSettings::get_global(cx).gutter;
10855 let gutter_lines_enabled = gutter_settings.line_numbers;
10856 let line_gutter_width = if gutter_lines_enabled {
10857 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10858 let min_width_for_number_on_gutter = em_width * 4.0;
10859 max_line_number_width.max(min_width_for_number_on_gutter)
10860 } else {
10861 0.0.into()
10862 };
10863
10864 let git_blame_entries_width = self
10865 .render_git_blame_gutter
10866 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10867
10868 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10869 left_padding += if gutter_settings.code_actions {
10870 em_width * 3.0
10871 } else if show_git_gutter && gutter_lines_enabled {
10872 em_width * 2.0
10873 } else if show_git_gutter || gutter_lines_enabled {
10874 em_width
10875 } else {
10876 px(0.)
10877 };
10878
10879 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10880 em_width * 4.0
10881 } else if gutter_settings.folds {
10882 em_width * 3.0
10883 } else if gutter_lines_enabled {
10884 em_width
10885 } else {
10886 px(0.)
10887 };
10888
10889 GutterDimensions {
10890 left_padding,
10891 right_padding,
10892 width: line_gutter_width + left_padding + right_padding,
10893 margin: -descent,
10894 git_blame_entries_width,
10895 }
10896 }
10897}
10898
10899impl Deref for EditorSnapshot {
10900 type Target = DisplaySnapshot;
10901
10902 fn deref(&self) -> &Self::Target {
10903 &self.display_snapshot
10904 }
10905}
10906
10907#[derive(Clone, Debug, PartialEq, Eq)]
10908pub enum EditorEvent {
10909 InputIgnored {
10910 text: Arc<str>,
10911 },
10912 InputHandled {
10913 utf16_range_to_replace: Option<Range<isize>>,
10914 text: Arc<str>,
10915 },
10916 ExcerptsAdded {
10917 buffer: Model<Buffer>,
10918 predecessor: ExcerptId,
10919 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10920 },
10921 ExcerptsRemoved {
10922 ids: Vec<ExcerptId>,
10923 },
10924 BufferEdited,
10925 Edited,
10926 Reparsed,
10927 Focused,
10928 Blurred,
10929 DirtyChanged,
10930 Saved,
10931 TitleChanged,
10932 DiffBaseChanged,
10933 SelectionsChanged {
10934 local: bool,
10935 },
10936 ScrollPositionChanged {
10937 local: bool,
10938 autoscroll: bool,
10939 },
10940 Closed,
10941 TransactionUndone {
10942 transaction_id: clock::Lamport,
10943 },
10944 TransactionBegun {
10945 transaction_id: clock::Lamport,
10946 },
10947}
10948
10949impl EventEmitter<EditorEvent> for Editor {}
10950
10951impl FocusableView for Editor {
10952 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10953 self.focus_handle.clone()
10954 }
10955}
10956
10957impl Render for Editor {
10958 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10959 let settings = ThemeSettings::get_global(cx);
10960
10961 let text_style = match self.mode {
10962 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10963 color: cx.theme().colors().editor_foreground,
10964 font_family: settings.ui_font.family.clone(),
10965 font_features: settings.ui_font.features.clone(),
10966 font_size: rems(0.875).into(),
10967 font_weight: FontWeight::NORMAL,
10968 font_style: FontStyle::Normal,
10969 line_height: relative(settings.buffer_line_height.value()),
10970 background_color: None,
10971 underline: None,
10972 strikethrough: None,
10973 white_space: WhiteSpace::Normal,
10974 },
10975 EditorMode::Full => TextStyle {
10976 color: cx.theme().colors().editor_foreground,
10977 font_family: settings.buffer_font.family.clone(),
10978 font_features: settings.buffer_font.features.clone(),
10979 font_size: settings.buffer_font_size(cx).into(),
10980 font_weight: FontWeight::NORMAL,
10981 font_style: FontStyle::Normal,
10982 line_height: relative(settings.buffer_line_height.value()),
10983 background_color: None,
10984 underline: None,
10985 strikethrough: None,
10986 white_space: WhiteSpace::Normal,
10987 },
10988 };
10989
10990 let background = match self.mode {
10991 EditorMode::SingleLine => cx.theme().system().transparent,
10992 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10993 EditorMode::Full => cx.theme().colors().editor_background,
10994 };
10995
10996 EditorElement::new(
10997 cx.view(),
10998 EditorStyle {
10999 background,
11000 local_player: cx.theme().players().local(),
11001 text: text_style,
11002 scrollbar_width: px(13.),
11003 syntax: cx.theme().syntax().clone(),
11004 status: cx.theme().status().clone(),
11005 inlay_hints_style: HighlightStyle {
11006 color: Some(cx.theme().status().hint),
11007 ..HighlightStyle::default()
11008 },
11009 suggestions_style: HighlightStyle {
11010 color: Some(cx.theme().status().predictive),
11011 ..HighlightStyle::default()
11012 },
11013 },
11014 )
11015 }
11016}
11017
11018impl ViewInputHandler for Editor {
11019 fn text_for_range(
11020 &mut self,
11021 range_utf16: Range<usize>,
11022 cx: &mut ViewContext<Self>,
11023 ) -> Option<String> {
11024 Some(
11025 self.buffer
11026 .read(cx)
11027 .read(cx)
11028 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11029 .collect(),
11030 )
11031 }
11032
11033 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11034 // Prevent the IME menu from appearing when holding down an alphabetic key
11035 // while input is disabled.
11036 if !self.input_enabled {
11037 return None;
11038 }
11039
11040 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11041 Some(range.start.0..range.end.0)
11042 }
11043
11044 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11045 let snapshot = self.buffer.read(cx).read(cx);
11046 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11047 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11048 }
11049
11050 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11051 self.clear_highlights::<InputComposition>(cx);
11052 self.ime_transaction.take();
11053 }
11054
11055 fn replace_text_in_range(
11056 &mut self,
11057 range_utf16: Option<Range<usize>>,
11058 text: &str,
11059 cx: &mut ViewContext<Self>,
11060 ) {
11061 if !self.input_enabled {
11062 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11063 return;
11064 }
11065
11066 self.transact(cx, |this, cx| {
11067 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11068 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11069 Some(this.selection_replacement_ranges(range_utf16, cx))
11070 } else {
11071 this.marked_text_ranges(cx)
11072 };
11073
11074 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11075 let newest_selection_id = this.selections.newest_anchor().id;
11076 this.selections
11077 .all::<OffsetUtf16>(cx)
11078 .iter()
11079 .zip(ranges_to_replace.iter())
11080 .find_map(|(selection, range)| {
11081 if selection.id == newest_selection_id {
11082 Some(
11083 (range.start.0 as isize - selection.head().0 as isize)
11084 ..(range.end.0 as isize - selection.head().0 as isize),
11085 )
11086 } else {
11087 None
11088 }
11089 })
11090 });
11091
11092 cx.emit(EditorEvent::InputHandled {
11093 utf16_range_to_replace: range_to_replace,
11094 text: text.into(),
11095 });
11096
11097 if let Some(new_selected_ranges) = new_selected_ranges {
11098 this.change_selections(None, cx, |selections| {
11099 selections.select_ranges(new_selected_ranges)
11100 });
11101 this.backspace(&Default::default(), cx);
11102 }
11103
11104 this.handle_input(text, cx);
11105 });
11106
11107 if let Some(transaction) = self.ime_transaction {
11108 self.buffer.update(cx, |buffer, cx| {
11109 buffer.group_until_transaction(transaction, cx);
11110 });
11111 }
11112
11113 self.unmark_text(cx);
11114 }
11115
11116 fn replace_and_mark_text_in_range(
11117 &mut self,
11118 range_utf16: Option<Range<usize>>,
11119 text: &str,
11120 new_selected_range_utf16: Option<Range<usize>>,
11121 cx: &mut ViewContext<Self>,
11122 ) {
11123 if !self.input_enabled {
11124 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11125 return;
11126 }
11127
11128 let transaction = self.transact(cx, |this, cx| {
11129 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11130 let snapshot = this.buffer.read(cx).read(cx);
11131 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11132 for marked_range in &mut marked_ranges {
11133 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11134 marked_range.start.0 += relative_range_utf16.start;
11135 marked_range.start =
11136 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11137 marked_range.end =
11138 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11139 }
11140 }
11141 Some(marked_ranges)
11142 } else if let Some(range_utf16) = range_utf16 {
11143 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11144 Some(this.selection_replacement_ranges(range_utf16, cx))
11145 } else {
11146 None
11147 };
11148
11149 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11150 let newest_selection_id = this.selections.newest_anchor().id;
11151 this.selections
11152 .all::<OffsetUtf16>(cx)
11153 .iter()
11154 .zip(ranges_to_replace.iter())
11155 .find_map(|(selection, range)| {
11156 if selection.id == newest_selection_id {
11157 Some(
11158 (range.start.0 as isize - selection.head().0 as isize)
11159 ..(range.end.0 as isize - selection.head().0 as isize),
11160 )
11161 } else {
11162 None
11163 }
11164 })
11165 });
11166
11167 cx.emit(EditorEvent::InputHandled {
11168 utf16_range_to_replace: range_to_replace,
11169 text: text.into(),
11170 });
11171
11172 if let Some(ranges) = ranges_to_replace {
11173 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11174 }
11175
11176 let marked_ranges = {
11177 let snapshot = this.buffer.read(cx).read(cx);
11178 this.selections
11179 .disjoint_anchors()
11180 .iter()
11181 .map(|selection| {
11182 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11183 })
11184 .collect::<Vec<_>>()
11185 };
11186
11187 if text.is_empty() {
11188 this.unmark_text(cx);
11189 } else {
11190 this.highlight_text::<InputComposition>(
11191 marked_ranges.clone(),
11192 HighlightStyle {
11193 underline: Some(UnderlineStyle {
11194 thickness: px(1.),
11195 color: None,
11196 wavy: false,
11197 }),
11198 ..Default::default()
11199 },
11200 cx,
11201 );
11202 }
11203
11204 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11205 let use_autoclose = this.use_autoclose;
11206 this.set_use_autoclose(false);
11207 this.handle_input(text, cx);
11208 this.set_use_autoclose(use_autoclose);
11209
11210 if let Some(new_selected_range) = new_selected_range_utf16 {
11211 let snapshot = this.buffer.read(cx).read(cx);
11212 let new_selected_ranges = marked_ranges
11213 .into_iter()
11214 .map(|marked_range| {
11215 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11216 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11217 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11218 snapshot.clip_offset_utf16(new_start, Bias::Left)
11219 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11220 })
11221 .collect::<Vec<_>>();
11222
11223 drop(snapshot);
11224 this.change_selections(None, cx, |selections| {
11225 selections.select_ranges(new_selected_ranges)
11226 });
11227 }
11228 });
11229
11230 self.ime_transaction = self.ime_transaction.or(transaction);
11231 if let Some(transaction) = self.ime_transaction {
11232 self.buffer.update(cx, |buffer, cx| {
11233 buffer.group_until_transaction(transaction, cx);
11234 });
11235 }
11236
11237 if self.text_highlights::<InputComposition>(cx).is_none() {
11238 self.ime_transaction.take();
11239 }
11240 }
11241
11242 fn bounds_for_range(
11243 &mut self,
11244 range_utf16: Range<usize>,
11245 element_bounds: gpui::Bounds<Pixels>,
11246 cx: &mut ViewContext<Self>,
11247 ) -> Option<gpui::Bounds<Pixels>> {
11248 let text_layout_details = self.text_layout_details(cx);
11249 let style = &text_layout_details.editor_style;
11250 let font_id = cx.text_system().resolve_font(&style.text.font());
11251 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11252 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11253 let em_width = cx
11254 .text_system()
11255 .typographic_bounds(font_id, font_size, 'm')
11256 .unwrap()
11257 .size
11258 .width;
11259
11260 let snapshot = self.snapshot(cx);
11261 let scroll_position = snapshot.scroll_position();
11262 let scroll_left = scroll_position.x * em_width;
11263
11264 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11265 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11266 + self.gutter_dimensions.width;
11267 let y = line_height * (start.row() as f32 - scroll_position.y);
11268
11269 Some(Bounds {
11270 origin: element_bounds.origin + point(x, y),
11271 size: size(em_width, line_height),
11272 })
11273 }
11274}
11275
11276trait SelectionExt {
11277 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11278 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
11279 -> Range<u32>;
11280}
11281
11282impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11283 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11284 let start = self
11285 .start
11286 .to_point(&map.buffer_snapshot)
11287 .to_display_point(map);
11288 let end = self
11289 .end
11290 .to_point(&map.buffer_snapshot)
11291 .to_display_point(map);
11292 if self.reversed {
11293 end..start
11294 } else {
11295 start..end
11296 }
11297 }
11298
11299 fn spanned_rows(
11300 &self,
11301 include_end_if_at_line_start: bool,
11302 map: &DisplaySnapshot,
11303 ) -> Range<u32> {
11304 let start = self.start.to_point(&map.buffer_snapshot);
11305 let mut end = self.end.to_point(&map.buffer_snapshot);
11306 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11307 end.row -= 1;
11308 }
11309
11310 let buffer_start = map.prev_line_boundary(start).0;
11311 let buffer_end = map.next_line_boundary(end).0;
11312 buffer_start.row..buffer_end.row + 1
11313 }
11314}
11315
11316impl<T: InvalidationRegion> InvalidationStack<T> {
11317 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11318 where
11319 S: Clone + ToOffset,
11320 {
11321 while let Some(region) = self.last() {
11322 let all_selections_inside_invalidation_ranges =
11323 if selections.len() == region.ranges().len() {
11324 selections
11325 .iter()
11326 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11327 .all(|(selection, invalidation_range)| {
11328 let head = selection.head().to_offset(buffer);
11329 invalidation_range.start <= head && invalidation_range.end >= head
11330 })
11331 } else {
11332 false
11333 };
11334
11335 if all_selections_inside_invalidation_ranges {
11336 break;
11337 } else {
11338 self.pop();
11339 }
11340 }
11341 }
11342}
11343
11344impl<T> Default for InvalidationStack<T> {
11345 fn default() -> Self {
11346 Self(Default::default())
11347 }
11348}
11349
11350impl<T> Deref for InvalidationStack<T> {
11351 type Target = Vec<T>;
11352
11353 fn deref(&self) -> &Self::Target {
11354 &self.0
11355 }
11356}
11357
11358impl<T> DerefMut for InvalidationStack<T> {
11359 fn deref_mut(&mut self) -> &mut Self::Target {
11360 &mut self.0
11361 }
11362}
11363
11364impl InvalidationRegion for SnippetState {
11365 fn ranges(&self) -> &[Range<Anchor>] {
11366 &self.ranges[self.active_index]
11367 }
11368}
11369
11370pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11371 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11372
11373 Box::new(move |cx: &mut BlockContext| {
11374 let group_id: SharedString = cx.block_id.to_string().into();
11375
11376 let mut text_style = cx.text_style().clone();
11377 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11378 let theme_settings = ThemeSettings::get_global(cx);
11379 text_style.font_family = theme_settings.buffer_font.family.clone();
11380 text_style.font_style = theme_settings.buffer_font.style;
11381 text_style.font_features = theme_settings.buffer_font.features.clone();
11382 text_style.font_weight = theme_settings.buffer_font.weight;
11383
11384 let multi_line_diagnostic = diagnostic.message.contains('\n');
11385
11386 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11387 if multi_line_diagnostic {
11388 v_flex()
11389 } else {
11390 h_flex()
11391 }
11392 .children(diagnostic.is_primary.then(|| {
11393 IconButton::new(("close-block", block_id), IconName::XCircle)
11394 .icon_color(Color::Muted)
11395 .size(ButtonSize::Compact)
11396 .style(ButtonStyle::Transparent)
11397 .visible_on_hover(group_id.clone())
11398 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11399 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11400 }))
11401 .child(
11402 IconButton::new(("copy-block", block_id), IconName::Copy)
11403 .icon_color(Color::Muted)
11404 .size(ButtonSize::Compact)
11405 .style(ButtonStyle::Transparent)
11406 .visible_on_hover(group_id.clone())
11407 .on_click({
11408 let message = diagnostic.message.clone();
11409 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11410 })
11411 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11412 )
11413 };
11414
11415 let icon_size = buttons(&diagnostic, cx.block_id)
11416 .into_any_element()
11417 .layout_as_root(AvailableSpace::min_size(), cx);
11418
11419 h_flex()
11420 .id(cx.block_id)
11421 .group(group_id.clone())
11422 .relative()
11423 .size_full()
11424 .pl(cx.gutter_dimensions.width)
11425 .w(cx.max_width + cx.gutter_dimensions.width)
11426 .child(
11427 div()
11428 .flex()
11429 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11430 .flex_shrink(),
11431 )
11432 .child(buttons(&diagnostic, cx.block_id))
11433 .child(div().flex().flex_shrink_0().child(
11434 StyledText::new(text_without_backticks.clone()).with_highlights(
11435 &text_style,
11436 code_ranges.iter().map(|range| {
11437 (
11438 range.clone(),
11439 HighlightStyle {
11440 font_weight: Some(FontWeight::BOLD),
11441 ..Default::default()
11442 },
11443 )
11444 }),
11445 ),
11446 ))
11447 .into_any_element()
11448 })
11449}
11450
11451pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11452 let mut text_without_backticks = String::new();
11453 let mut code_ranges = Vec::new();
11454
11455 if let Some(source) = &diagnostic.source {
11456 text_without_backticks.push_str(&source);
11457 code_ranges.push(0..source.len());
11458 text_without_backticks.push_str(": ");
11459 }
11460
11461 let mut prev_offset = 0;
11462 let mut in_code_block = false;
11463 for (ix, _) in diagnostic
11464 .message
11465 .match_indices('`')
11466 .chain([(diagnostic.message.len(), "")])
11467 {
11468 let prev_len = text_without_backticks.len();
11469 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11470 prev_offset = ix + 1;
11471 if in_code_block {
11472 code_ranges.push(prev_len..text_without_backticks.len());
11473 in_code_block = false;
11474 } else {
11475 in_code_block = true;
11476 }
11477 }
11478
11479 (text_without_backticks.into(), code_ranges)
11480}
11481
11482fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11483 match (severity, valid) {
11484 (DiagnosticSeverity::ERROR, true) => colors.error,
11485 (DiagnosticSeverity::ERROR, false) => colors.error,
11486 (DiagnosticSeverity::WARNING, true) => colors.warning,
11487 (DiagnosticSeverity::WARNING, false) => colors.warning,
11488 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11489 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11490 (DiagnosticSeverity::HINT, true) => colors.info,
11491 (DiagnosticSeverity::HINT, false) => colors.info,
11492 _ => colors.ignored,
11493 }
11494}
11495
11496pub fn styled_runs_for_code_label<'a>(
11497 label: &'a CodeLabel,
11498 syntax_theme: &'a theme::SyntaxTheme,
11499) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11500 let fade_out = HighlightStyle {
11501 fade_out: Some(0.35),
11502 ..Default::default()
11503 };
11504
11505 let mut prev_end = label.filter_range.end;
11506 label
11507 .runs
11508 .iter()
11509 .enumerate()
11510 .flat_map(move |(ix, (range, highlight_id))| {
11511 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11512 style
11513 } else {
11514 return Default::default();
11515 };
11516 let mut muted_style = style;
11517 muted_style.highlight(fade_out);
11518
11519 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11520 if range.start >= label.filter_range.end {
11521 if range.start > prev_end {
11522 runs.push((prev_end..range.start, fade_out));
11523 }
11524 runs.push((range.clone(), muted_style));
11525 } else if range.end <= label.filter_range.end {
11526 runs.push((range.clone(), style));
11527 } else {
11528 runs.push((range.start..label.filter_range.end, style));
11529 runs.push((label.filter_range.end..range.end, muted_style));
11530 }
11531 prev_end = cmp::max(prev_end, range.end);
11532
11533 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11534 runs.push((prev_end..label.text.len(), fade_out));
11535 }
11536
11537 runs
11538 })
11539}
11540
11541pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11542 let mut prev_index = 0;
11543 let mut prev_codepoint: Option<char> = None;
11544 text.char_indices()
11545 .chain([(text.len(), '\0')])
11546 .filter_map(move |(index, codepoint)| {
11547 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11548 let is_boundary = index == text.len()
11549 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11550 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11551 if is_boundary {
11552 let chunk = &text[prev_index..index];
11553 prev_index = index;
11554 Some(chunk)
11555 } else {
11556 None
11557 }
11558 })
11559}
11560
11561trait RangeToAnchorExt {
11562 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11563}
11564
11565impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11566 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11567 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11568 }
11569}