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<(Model<Buffer>, 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 (buffer, code_actions) = this.available_code_actions.clone().unzip();
3871 if tasks.is_none() && code_actions.is_none() {
3872 return None;
3873 }
3874 let buffer = buffer.or_else(|| {
3875 let snapshot = this.snapshot(cx);
3876 let (buffer_snapshot, _) =
3877 snapshot.buffer_snapshot.buffer_line_for_row(display_row)?;
3878 let buffer_id = buffer_snapshot.remote_id();
3879 this.buffer().read(cx).buffer(buffer_id)
3880 });
3881 let Some(buffer) = buffer else {
3882 return None;
3883 };
3884 this.completion_tasks.clear();
3885 this.discard_inline_completion(cx);
3886 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3887 |(tasks, (workspace, _))| {
3888 if let Some(buffer_point) = buffer_row {
3889 let position = Point::new(buffer_point.row, tasks.column);
3890 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3891 let location = Location {
3892 buffer: buffer.clone(),
3893 range: range_start..range_start,
3894 };
3895 workspace
3896 .update(cx, |workspace, cx| {
3897 tasks::task_context_for_location(workspace, location, cx)
3898 })
3899 .ok()
3900 .flatten()
3901 } else {
3902 None
3903 }
3904 },
3905 );
3906 let tasks = tasks
3907 .zip(task_context.as_ref())
3908 .map(|(tasks, task_context)| {
3909 Arc::new(ResolvedTasks {
3910 templates: tasks
3911 .templates
3912 .iter()
3913 .filter_map(|(kind, template)| {
3914 template
3915 .resolve_task(&kind.to_id_base(), &task_context)
3916 .map(|task| (kind.clone(), task))
3917 })
3918 .collect(),
3919 position: Point::new(display_row, tasks.column),
3920 })
3921 });
3922 let spawn_straight_away = tasks
3923 .as_ref()
3924 .map_or(false, |tasks| tasks.templates.len() == 1)
3925 && code_actions
3926 .as_ref()
3927 .map_or(true, |actions| actions.is_empty());
3928 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3929 buffer,
3930 actions: CodeActionContents {
3931 tasks,
3932 actions: code_actions,
3933 },
3934 selected_item: Default::default(),
3935 scroll_handle: UniformListScrollHandle::default(),
3936 deployed_from_indicator,
3937 }));
3938 if spawn_straight_away {
3939 if let Some(task) =
3940 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3941 {
3942 cx.notify();
3943 return Some(task);
3944 }
3945 }
3946 cx.notify();
3947 }
3948 Some(Task::ready(Ok(())))
3949 })?;
3950 if let Some(task) = spawned_test_task {
3951 task.await?;
3952 }
3953
3954 Ok::<_, anyhow::Error>(())
3955 })
3956 .detach_and_log_err(cx);
3957 }
3958
3959 pub fn confirm_code_action(
3960 &mut self,
3961 action: &ConfirmCodeAction,
3962 cx: &mut ViewContext<Self>,
3963 ) -> Option<Task<Result<()>>> {
3964 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3965 menu
3966 } else {
3967 return None;
3968 };
3969 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3970 let action = actions_menu.actions.get(action_ix)?;
3971 let title = action.label();
3972 let buffer = actions_menu.buffer;
3973 let workspace = self.workspace()?;
3974
3975 match action {
3976 CodeActionsItem::Task(task_source_kind, resolved_task) => {
3977 workspace.update(cx, |workspace, cx| {
3978 workspace::tasks::schedule_resolved_task(
3979 workspace,
3980 task_source_kind,
3981 resolved_task,
3982 false,
3983 cx,
3984 );
3985
3986 None
3987 })
3988 }
3989 CodeActionsItem::CodeAction(action) => {
3990 let apply_code_actions = workspace
3991 .read(cx)
3992 .project()
3993 .clone()
3994 .update(cx, |project, cx| {
3995 project.apply_code_action(buffer, action, true, cx)
3996 });
3997 let workspace = workspace.downgrade();
3998 Some(cx.spawn(|editor, cx| async move {
3999 let project_transaction = apply_code_actions.await?;
4000 Self::open_project_transaction(
4001 &editor,
4002 workspace,
4003 project_transaction,
4004 title,
4005 cx,
4006 )
4007 .await
4008 }))
4009 }
4010 }
4011 }
4012
4013 async fn open_project_transaction(
4014 this: &WeakView<Editor>,
4015 workspace: WeakView<Workspace>,
4016 transaction: ProjectTransaction,
4017 title: String,
4018 mut cx: AsyncWindowContext,
4019 ) -> Result<()> {
4020 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4021
4022 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4023 cx.update(|cx| {
4024 entries.sort_unstable_by_key(|(buffer, _)| {
4025 buffer.read(cx).file().map(|f| f.path().clone())
4026 });
4027 })?;
4028
4029 // If the project transaction's edits are all contained within this editor, then
4030 // avoid opening a new editor to display them.
4031
4032 if let Some((buffer, transaction)) = entries.first() {
4033 if entries.len() == 1 {
4034 let excerpt = this.update(&mut cx, |editor, cx| {
4035 editor
4036 .buffer()
4037 .read(cx)
4038 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4039 })?;
4040 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4041 if excerpted_buffer == *buffer {
4042 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4043 let excerpt_range = excerpt_range.to_offset(buffer);
4044 buffer
4045 .edited_ranges_for_transaction::<usize>(transaction)
4046 .all(|range| {
4047 excerpt_range.start <= range.start
4048 && excerpt_range.end >= range.end
4049 })
4050 })?;
4051
4052 if all_edits_within_excerpt {
4053 return Ok(());
4054 }
4055 }
4056 }
4057 }
4058 } else {
4059 return Ok(());
4060 }
4061
4062 let mut ranges_to_highlight = Vec::new();
4063 let excerpt_buffer = cx.new_model(|cx| {
4064 let mut multibuffer =
4065 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4066 for (buffer_handle, transaction) in &entries {
4067 let buffer = buffer_handle.read(cx);
4068 ranges_to_highlight.extend(
4069 multibuffer.push_excerpts_with_context_lines(
4070 buffer_handle.clone(),
4071 buffer
4072 .edited_ranges_for_transaction::<usize>(transaction)
4073 .collect(),
4074 DEFAULT_MULTIBUFFER_CONTEXT,
4075 cx,
4076 ),
4077 );
4078 }
4079 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4080 multibuffer
4081 })?;
4082
4083 workspace.update(&mut cx, |workspace, cx| {
4084 let project = workspace.project().clone();
4085 let editor =
4086 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4087 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4088 editor.update(cx, |editor, cx| {
4089 editor.highlight_background::<Self>(
4090 &ranges_to_highlight,
4091 |theme| theme.editor_highlighted_line_background,
4092 cx,
4093 );
4094 });
4095 })?;
4096
4097 Ok(())
4098 }
4099
4100 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4101 let project = self.project.clone()?;
4102 let buffer = self.buffer.read(cx);
4103 let newest_selection = self.selections.newest_anchor().clone();
4104 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4105 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4106 if start_buffer != end_buffer {
4107 return None;
4108 }
4109
4110 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4111 cx.background_executor()
4112 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4113 .await;
4114
4115 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4116 project.code_actions(&start_buffer, start..end, cx)
4117 }) {
4118 code_actions.await
4119 } else {
4120 Vec::new()
4121 };
4122
4123 this.update(&mut cx, |this, cx| {
4124 this.available_code_actions = if actions.is_empty() {
4125 None
4126 } else {
4127 Some((start_buffer, actions.into()))
4128 };
4129 cx.notify();
4130 })
4131 .log_err();
4132 }));
4133 None
4134 }
4135
4136 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4137 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4138 self.show_git_blame_inline = false;
4139
4140 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4141 cx.background_executor().timer(delay).await;
4142
4143 this.update(&mut cx, |this, cx| {
4144 this.show_git_blame_inline = true;
4145 cx.notify();
4146 })
4147 .log_err();
4148 }));
4149 }
4150 }
4151
4152 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4153 if self.pending_rename.is_some() {
4154 return None;
4155 }
4156
4157 let project = self.project.clone()?;
4158 let buffer = self.buffer.read(cx);
4159 let newest_selection = self.selections.newest_anchor().clone();
4160 let cursor_position = newest_selection.head();
4161 let (cursor_buffer, cursor_buffer_position) =
4162 buffer.text_anchor_for_position(cursor_position, cx)?;
4163 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4164 if cursor_buffer != tail_buffer {
4165 return None;
4166 }
4167
4168 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4169 cx.background_executor()
4170 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4171 .await;
4172
4173 let highlights = if let Some(highlights) = project
4174 .update(&mut cx, |project, cx| {
4175 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4176 })
4177 .log_err()
4178 {
4179 highlights.await.log_err()
4180 } else {
4181 None
4182 };
4183
4184 if let Some(highlights) = highlights {
4185 this.update(&mut cx, |this, cx| {
4186 if this.pending_rename.is_some() {
4187 return;
4188 }
4189
4190 let buffer_id = cursor_position.buffer_id;
4191 let buffer = this.buffer.read(cx);
4192 if !buffer
4193 .text_anchor_for_position(cursor_position, cx)
4194 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4195 {
4196 return;
4197 }
4198
4199 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4200 let mut write_ranges = Vec::new();
4201 let mut read_ranges = Vec::new();
4202 for highlight in highlights {
4203 for (excerpt_id, excerpt_range) in
4204 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4205 {
4206 let start = highlight
4207 .range
4208 .start
4209 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4210 let end = highlight
4211 .range
4212 .end
4213 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4214 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4215 continue;
4216 }
4217
4218 let range = Anchor {
4219 buffer_id,
4220 excerpt_id: excerpt_id,
4221 text_anchor: start,
4222 }..Anchor {
4223 buffer_id,
4224 excerpt_id,
4225 text_anchor: end,
4226 };
4227 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4228 write_ranges.push(range);
4229 } else {
4230 read_ranges.push(range);
4231 }
4232 }
4233 }
4234
4235 this.highlight_background::<DocumentHighlightRead>(
4236 &read_ranges,
4237 |theme| theme.editor_document_highlight_read_background,
4238 cx,
4239 );
4240 this.highlight_background::<DocumentHighlightWrite>(
4241 &write_ranges,
4242 |theme| theme.editor_document_highlight_write_background,
4243 cx,
4244 );
4245 cx.notify();
4246 })
4247 .log_err();
4248 }
4249 }));
4250 None
4251 }
4252
4253 fn refresh_inline_completion(
4254 &mut self,
4255 debounce: bool,
4256 cx: &mut ViewContext<Self>,
4257 ) -> Option<()> {
4258 let provider = self.inline_completion_provider()?;
4259 let cursor = self.selections.newest_anchor().head();
4260 let (buffer, cursor_buffer_position) =
4261 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4262 if !self.show_inline_completions
4263 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4264 {
4265 self.discard_inline_completion(cx);
4266 return None;
4267 }
4268
4269 self.update_visible_inline_completion(cx);
4270 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4271 Some(())
4272 }
4273
4274 fn cycle_inline_completion(
4275 &mut self,
4276 direction: Direction,
4277 cx: &mut ViewContext<Self>,
4278 ) -> Option<()> {
4279 let provider = self.inline_completion_provider()?;
4280 let cursor = self.selections.newest_anchor().head();
4281 let (buffer, cursor_buffer_position) =
4282 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4283 if !self.show_inline_completions
4284 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4285 {
4286 return None;
4287 }
4288
4289 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4290 self.update_visible_inline_completion(cx);
4291
4292 Some(())
4293 }
4294
4295 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4296 if !self.has_active_inline_completion(cx) {
4297 self.refresh_inline_completion(false, cx);
4298 return;
4299 }
4300
4301 self.update_visible_inline_completion(cx);
4302 }
4303
4304 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4305 self.show_cursor_names(cx);
4306 }
4307
4308 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4309 self.show_cursor_names = true;
4310 cx.notify();
4311 cx.spawn(|this, mut cx| async move {
4312 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4313 this.update(&mut cx, |this, cx| {
4314 this.show_cursor_names = false;
4315 cx.notify()
4316 })
4317 .ok()
4318 })
4319 .detach();
4320 }
4321
4322 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4323 if self.has_active_inline_completion(cx) {
4324 self.cycle_inline_completion(Direction::Next, cx);
4325 } else {
4326 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4327 if is_copilot_disabled {
4328 cx.propagate();
4329 }
4330 }
4331 }
4332
4333 pub fn previous_inline_completion(
4334 &mut self,
4335 _: &PreviousInlineCompletion,
4336 cx: &mut ViewContext<Self>,
4337 ) {
4338 if self.has_active_inline_completion(cx) {
4339 self.cycle_inline_completion(Direction::Prev, cx);
4340 } else {
4341 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4342 if is_copilot_disabled {
4343 cx.propagate();
4344 }
4345 }
4346 }
4347
4348 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4349 if let Some(completion) = self.take_active_inline_completion(cx) {
4350 if let Some(provider) = self.inline_completion_provider() {
4351 provider.accept(cx);
4352 }
4353
4354 cx.emit(EditorEvent::InputHandled {
4355 utf16_range_to_replace: None,
4356 text: completion.text.to_string().into(),
4357 });
4358 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4359 cx.notify();
4360 true
4361 } else {
4362 false
4363 }
4364 }
4365
4366 pub fn accept_partial_inline_completion(
4367 &mut self,
4368 _: &AcceptPartialInlineCompletion,
4369 cx: &mut ViewContext<Self>,
4370 ) {
4371 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4372 if let Some(completion) = self.take_active_inline_completion(cx) {
4373 let mut partial_completion = completion
4374 .text
4375 .chars()
4376 .by_ref()
4377 .take_while(|c| c.is_alphabetic())
4378 .collect::<String>();
4379 if partial_completion.is_empty() {
4380 partial_completion = completion
4381 .text
4382 .chars()
4383 .by_ref()
4384 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4385 .collect::<String>();
4386 }
4387
4388 cx.emit(EditorEvent::InputHandled {
4389 utf16_range_to_replace: None,
4390 text: partial_completion.clone().into(),
4391 });
4392 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4393 self.refresh_inline_completion(true, cx);
4394 cx.notify();
4395 }
4396 }
4397 }
4398
4399 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4400 if let Some(provider) = self.inline_completion_provider() {
4401 provider.discard(cx);
4402 }
4403
4404 self.take_active_inline_completion(cx).is_some()
4405 }
4406
4407 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4408 if let Some(completion) = self.active_inline_completion.as_ref() {
4409 let buffer = self.buffer.read(cx).read(cx);
4410 completion.position.is_valid(&buffer)
4411 } else {
4412 false
4413 }
4414 }
4415
4416 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4417 let completion = self.active_inline_completion.take()?;
4418 self.display_map.update(cx, |map, cx| {
4419 map.splice_inlays(vec![completion.id], Default::default(), cx);
4420 });
4421 let buffer = self.buffer.read(cx).read(cx);
4422
4423 if completion.position.is_valid(&buffer) {
4424 Some(completion)
4425 } else {
4426 None
4427 }
4428 }
4429
4430 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4431 let selection = self.selections.newest_anchor();
4432 let cursor = selection.head();
4433
4434 if self.context_menu.read().is_none()
4435 && self.completion_tasks.is_empty()
4436 && selection.start == selection.end
4437 {
4438 if let Some(provider) = self.inline_completion_provider() {
4439 if let Some((buffer, cursor_buffer_position)) =
4440 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4441 {
4442 if let Some(text) =
4443 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4444 {
4445 let text = Rope::from(text);
4446 let mut to_remove = Vec::new();
4447 if let Some(completion) = self.active_inline_completion.take() {
4448 to_remove.push(completion.id);
4449 }
4450
4451 let completion_inlay =
4452 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4453 self.active_inline_completion = Some(completion_inlay.clone());
4454 self.display_map.update(cx, move |map, cx| {
4455 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4456 });
4457 cx.notify();
4458 return;
4459 }
4460 }
4461 }
4462 }
4463
4464 self.discard_inline_completion(cx);
4465 }
4466
4467 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4468 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4469 }
4470
4471 fn render_code_actions_indicator(
4472 &self,
4473 _style: &EditorStyle,
4474 row: u32,
4475 is_active: bool,
4476 cx: &mut ViewContext<Self>,
4477 ) -> Option<IconButton> {
4478 if self.available_code_actions.is_some() {
4479 Some(
4480 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4481 .icon_size(IconSize::XSmall)
4482 .size(ui::ButtonSize::None)
4483 .icon_color(Color::Muted)
4484 .selected(is_active)
4485 .on_click(cx.listener(move |editor, _e, cx| {
4486 editor.toggle_code_actions(
4487 &ToggleCodeActions {
4488 deployed_from_indicator: Some(row),
4489 },
4490 cx,
4491 );
4492 })),
4493 )
4494 } else {
4495 None
4496 }
4497 }
4498
4499 fn clear_tasks(&mut self) {
4500 self.tasks.clear()
4501 }
4502
4503 fn insert_tasks(&mut self, row: u32, tasks: RunnableTasks) {
4504 if let Some(_) = self.tasks.insert(row, tasks) {
4505 // This case should hopefully be rare, but just in case...
4506 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4507 }
4508 }
4509
4510 fn render_run_indicator(
4511 &self,
4512 _style: &EditorStyle,
4513 is_active: bool,
4514 row: u32,
4515 cx: &mut ViewContext<Self>,
4516 ) -> IconButton {
4517 IconButton::new("code_actions_indicator", ui::IconName::Play)
4518 .icon_size(IconSize::XSmall)
4519 .size(ui::ButtonSize::None)
4520 .icon_color(Color::Muted)
4521 .selected(is_active)
4522 .on_click(cx.listener(move |editor, _e, cx| {
4523 editor.toggle_code_actions(
4524 &ToggleCodeActions {
4525 deployed_from_indicator: Some(row),
4526 },
4527 cx,
4528 );
4529 }))
4530 }
4531
4532 pub fn render_fold_indicators(
4533 &mut self,
4534 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4535 _style: &EditorStyle,
4536 gutter_hovered: bool,
4537 _line_height: Pixels,
4538 _gutter_margin: Pixels,
4539 cx: &mut ViewContext<Self>,
4540 ) -> Vec<Option<AnyElement>> {
4541 fold_data
4542 .iter()
4543 .enumerate()
4544 .map(|(ix, fold_data)| {
4545 fold_data
4546 .map(|(fold_status, buffer_row, active)| {
4547 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4548 IconButton::new(ix, ui::IconName::ChevronDown)
4549 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4550 FoldStatus::Folded => {
4551 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4552 }
4553 FoldStatus::Foldable => {
4554 this.fold_at(&FoldAt { buffer_row }, cx);
4555 }
4556 }))
4557 .icon_color(ui::Color::Muted)
4558 .icon_size(ui::IconSize::Small)
4559 .selected(fold_status == FoldStatus::Folded)
4560 .selected_icon(ui::IconName::ChevronRight)
4561 .size(ui::ButtonSize::None)
4562 .into_any_element()
4563 })
4564 })
4565 .flatten()
4566 })
4567 .collect()
4568 }
4569
4570 pub fn context_menu_visible(&self) -> bool {
4571 self.context_menu
4572 .read()
4573 .as_ref()
4574 .map_or(false, |menu| menu.visible())
4575 }
4576
4577 fn render_context_menu(
4578 &self,
4579 cursor_position: DisplayPoint,
4580 style: &EditorStyle,
4581 max_height: Pixels,
4582 cx: &mut ViewContext<Editor>,
4583 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4584 self.context_menu.read().as_ref().map(|menu| {
4585 menu.render(
4586 cursor_position,
4587 style,
4588 max_height,
4589 self.workspace.as_ref().map(|(w, _)| w.clone()),
4590 cx,
4591 )
4592 })
4593 }
4594
4595 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4596 cx.notify();
4597 self.completion_tasks.clear();
4598 let context_menu = self.context_menu.write().take();
4599 if context_menu.is_some() {
4600 self.update_visible_inline_completion(cx);
4601 }
4602 context_menu
4603 }
4604
4605 pub fn insert_snippet(
4606 &mut self,
4607 insertion_ranges: &[Range<usize>],
4608 snippet: Snippet,
4609 cx: &mut ViewContext<Self>,
4610 ) -> Result<()> {
4611 let tabstops = self.buffer.update(cx, |buffer, cx| {
4612 let snippet_text: Arc<str> = snippet.text.clone().into();
4613 buffer.edit(
4614 insertion_ranges
4615 .iter()
4616 .cloned()
4617 .map(|range| (range, snippet_text.clone())),
4618 Some(AutoindentMode::EachLine),
4619 cx,
4620 );
4621
4622 let snapshot = &*buffer.read(cx);
4623 let snippet = &snippet;
4624 snippet
4625 .tabstops
4626 .iter()
4627 .map(|tabstop| {
4628 let mut tabstop_ranges = tabstop
4629 .iter()
4630 .flat_map(|tabstop_range| {
4631 let mut delta = 0_isize;
4632 insertion_ranges.iter().map(move |insertion_range| {
4633 let insertion_start = insertion_range.start as isize + delta;
4634 delta +=
4635 snippet.text.len() as isize - insertion_range.len() as isize;
4636
4637 let start = snapshot.anchor_before(
4638 (insertion_start + tabstop_range.start) as usize,
4639 );
4640 let end = snapshot
4641 .anchor_after((insertion_start + tabstop_range.end) as usize);
4642 start..end
4643 })
4644 })
4645 .collect::<Vec<_>>();
4646 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4647 tabstop_ranges
4648 })
4649 .collect::<Vec<_>>()
4650 });
4651
4652 if let Some(tabstop) = tabstops.first() {
4653 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4654 s.select_ranges(tabstop.iter().cloned());
4655 });
4656 self.snippet_stack.push(SnippetState {
4657 active_index: 0,
4658 ranges: tabstops,
4659 });
4660
4661 // Check whether the just-entered snippet ends with an auto-closable bracket.
4662 if self.autoclose_regions.is_empty() {
4663 let snapshot = self.buffer.read(cx).snapshot(cx);
4664 for selection in &mut self.selections.all::<Point>(cx) {
4665 let selection_head = selection.head();
4666 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4667 continue;
4668 };
4669
4670 let mut bracket_pair = None;
4671 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4672 let prev_chars = snapshot
4673 .reversed_chars_at(selection_head)
4674 .collect::<String>();
4675 for (pair, enabled) in scope.brackets() {
4676 if enabled
4677 && pair.close
4678 && prev_chars.starts_with(pair.start.as_str())
4679 && next_chars.starts_with(pair.end.as_str())
4680 {
4681 bracket_pair = Some(pair.clone());
4682 break;
4683 }
4684 }
4685 if let Some(pair) = bracket_pair {
4686 let start = snapshot.anchor_after(selection_head);
4687 let end = snapshot.anchor_after(selection_head);
4688 self.autoclose_regions.push(AutocloseRegion {
4689 selection_id: selection.id,
4690 range: start..end,
4691 pair,
4692 });
4693 }
4694 }
4695 }
4696 }
4697 Ok(())
4698 }
4699
4700 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4701 self.move_to_snippet_tabstop(Bias::Right, cx)
4702 }
4703
4704 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4705 self.move_to_snippet_tabstop(Bias::Left, cx)
4706 }
4707
4708 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4709 if let Some(mut snippet) = self.snippet_stack.pop() {
4710 match bias {
4711 Bias::Left => {
4712 if snippet.active_index > 0 {
4713 snippet.active_index -= 1;
4714 } else {
4715 self.snippet_stack.push(snippet);
4716 return false;
4717 }
4718 }
4719 Bias::Right => {
4720 if snippet.active_index + 1 < snippet.ranges.len() {
4721 snippet.active_index += 1;
4722 } else {
4723 self.snippet_stack.push(snippet);
4724 return false;
4725 }
4726 }
4727 }
4728 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4729 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4730 s.select_anchor_ranges(current_ranges.iter().cloned())
4731 });
4732 // If snippet state is not at the last tabstop, push it back on the stack
4733 if snippet.active_index + 1 < snippet.ranges.len() {
4734 self.snippet_stack.push(snippet);
4735 }
4736 return true;
4737 }
4738 }
4739
4740 false
4741 }
4742
4743 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4744 self.transact(cx, |this, cx| {
4745 this.select_all(&SelectAll, cx);
4746 this.insert("", cx);
4747 });
4748 }
4749
4750 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4751 self.transact(cx, |this, cx| {
4752 this.select_autoclose_pair(cx);
4753 let mut selections = this.selections.all::<Point>(cx);
4754 if !this.selections.line_mode {
4755 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4756 for selection in &mut selections {
4757 if selection.is_empty() {
4758 let old_head = selection.head();
4759 let mut new_head =
4760 movement::left(&display_map, old_head.to_display_point(&display_map))
4761 .to_point(&display_map);
4762 if let Some((buffer, line_buffer_range)) = display_map
4763 .buffer_snapshot
4764 .buffer_line_for_row(old_head.row)
4765 {
4766 let indent_size =
4767 buffer.indent_size_for_line(line_buffer_range.start.row);
4768 let indent_len = match indent_size.kind {
4769 IndentKind::Space => {
4770 buffer.settings_at(line_buffer_range.start, cx).tab_size
4771 }
4772 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4773 };
4774 if old_head.column <= indent_size.len && old_head.column > 0 {
4775 let indent_len = indent_len.get();
4776 new_head = cmp::min(
4777 new_head,
4778 Point::new(
4779 old_head.row,
4780 ((old_head.column - 1) / indent_len) * indent_len,
4781 ),
4782 );
4783 }
4784 }
4785
4786 selection.set_head(new_head, SelectionGoal::None);
4787 }
4788 }
4789 }
4790
4791 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4792 this.insert("", cx);
4793 this.refresh_inline_completion(true, cx);
4794 });
4795 }
4796
4797 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4798 self.transact(cx, |this, cx| {
4799 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4800 let line_mode = s.line_mode;
4801 s.move_with(|map, selection| {
4802 if selection.is_empty() && !line_mode {
4803 let cursor = movement::right(map, selection.head());
4804 selection.end = cursor;
4805 selection.reversed = true;
4806 selection.goal = SelectionGoal::None;
4807 }
4808 })
4809 });
4810 this.insert("", cx);
4811 this.refresh_inline_completion(true, cx);
4812 });
4813 }
4814
4815 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4816 if self.move_to_prev_snippet_tabstop(cx) {
4817 return;
4818 }
4819
4820 self.outdent(&Outdent, cx);
4821 }
4822
4823 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4824 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4825 return;
4826 }
4827
4828 let mut selections = self.selections.all_adjusted(cx);
4829 let buffer = self.buffer.read(cx);
4830 let snapshot = buffer.snapshot(cx);
4831 let rows_iter = selections.iter().map(|s| s.head().row);
4832 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4833
4834 let mut edits = Vec::new();
4835 let mut prev_edited_row = 0;
4836 let mut row_delta = 0;
4837 for selection in &mut selections {
4838 if selection.start.row != prev_edited_row {
4839 row_delta = 0;
4840 }
4841 prev_edited_row = selection.end.row;
4842
4843 // If the selection is non-empty, then increase the indentation of the selected lines.
4844 if !selection.is_empty() {
4845 row_delta =
4846 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4847 continue;
4848 }
4849
4850 // If the selection is empty and the cursor is in the leading whitespace before the
4851 // suggested indentation, then auto-indent the line.
4852 let cursor = selection.head();
4853 let current_indent = snapshot.indent_size_for_line(cursor.row);
4854 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4855 if cursor.column < suggested_indent.len
4856 && cursor.column <= current_indent.len
4857 && current_indent.len <= suggested_indent.len
4858 {
4859 selection.start = Point::new(cursor.row, suggested_indent.len);
4860 selection.end = selection.start;
4861 if row_delta == 0 {
4862 edits.extend(Buffer::edit_for_indent_size_adjustment(
4863 cursor.row,
4864 current_indent,
4865 suggested_indent,
4866 ));
4867 row_delta = suggested_indent.len - current_indent.len;
4868 }
4869 continue;
4870 }
4871 }
4872
4873 // Accept copilot completion if there is only one selection and the cursor is not
4874 // in the leading whitespace.
4875 if self.selections.count() == 1
4876 && cursor.column >= current_indent.len
4877 && self.has_active_inline_completion(cx)
4878 {
4879 self.accept_inline_completion(cx);
4880 return;
4881 }
4882
4883 // Otherwise, insert a hard or soft tab.
4884 let settings = buffer.settings_at(cursor, cx);
4885 let tab_size = if settings.hard_tabs {
4886 IndentSize::tab()
4887 } else {
4888 let tab_size = settings.tab_size.get();
4889 let char_column = snapshot
4890 .text_for_range(Point::new(cursor.row, 0)..cursor)
4891 .flat_map(str::chars)
4892 .count()
4893 + row_delta as usize;
4894 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4895 IndentSize::spaces(chars_to_next_tab_stop)
4896 };
4897 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4898 selection.end = selection.start;
4899 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4900 row_delta += tab_size.len;
4901 }
4902
4903 self.transact(cx, |this, cx| {
4904 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4905 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4906 this.refresh_inline_completion(true, cx);
4907 });
4908 }
4909
4910 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4911 if self.read_only(cx) {
4912 return;
4913 }
4914 let mut selections = self.selections.all::<Point>(cx);
4915 let mut prev_edited_row = 0;
4916 let mut row_delta = 0;
4917 let mut edits = Vec::new();
4918 let buffer = self.buffer.read(cx);
4919 let snapshot = buffer.snapshot(cx);
4920 for selection in &mut selections {
4921 if selection.start.row != prev_edited_row {
4922 row_delta = 0;
4923 }
4924 prev_edited_row = selection.end.row;
4925
4926 row_delta =
4927 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4928 }
4929
4930 self.transact(cx, |this, cx| {
4931 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4932 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4933 });
4934 }
4935
4936 fn indent_selection(
4937 buffer: &MultiBuffer,
4938 snapshot: &MultiBufferSnapshot,
4939 selection: &mut Selection<Point>,
4940 edits: &mut Vec<(Range<Point>, String)>,
4941 delta_for_start_row: u32,
4942 cx: &AppContext,
4943 ) -> u32 {
4944 let settings = buffer.settings_at(selection.start, cx);
4945 let tab_size = settings.tab_size.get();
4946 let indent_kind = if settings.hard_tabs {
4947 IndentKind::Tab
4948 } else {
4949 IndentKind::Space
4950 };
4951 let mut start_row = selection.start.row;
4952 let mut end_row = selection.end.row + 1;
4953
4954 // If a selection ends at the beginning of a line, don't indent
4955 // that last line.
4956 if selection.end.column == 0 && selection.end.row > selection.start.row {
4957 end_row -= 1;
4958 }
4959
4960 // Avoid re-indenting a row that has already been indented by a
4961 // previous selection, but still update this selection's column
4962 // to reflect that indentation.
4963 if delta_for_start_row > 0 {
4964 start_row += 1;
4965 selection.start.column += delta_for_start_row;
4966 if selection.end.row == selection.start.row {
4967 selection.end.column += delta_for_start_row;
4968 }
4969 }
4970
4971 let mut delta_for_end_row = 0;
4972 let has_multiple_rows = start_row + 1 != end_row;
4973 for row in start_row..end_row {
4974 let current_indent = snapshot.indent_size_for_line(row);
4975 let indent_delta = match (current_indent.kind, indent_kind) {
4976 (IndentKind::Space, IndentKind::Space) => {
4977 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4978 IndentSize::spaces(columns_to_next_tab_stop)
4979 }
4980 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4981 (_, IndentKind::Tab) => IndentSize::tab(),
4982 };
4983
4984 let start = if has_multiple_rows || current_indent.len < selection.start.column {
4985 0
4986 } else {
4987 selection.start.column
4988 };
4989 let row_start = Point::new(row, start);
4990 edits.push((
4991 row_start..row_start,
4992 indent_delta.chars().collect::<String>(),
4993 ));
4994
4995 // Update this selection's endpoints to reflect the indentation.
4996 if row == selection.start.row {
4997 selection.start.column += indent_delta.len;
4998 }
4999 if row == selection.end.row {
5000 selection.end.column += indent_delta.len;
5001 delta_for_end_row = indent_delta.len;
5002 }
5003 }
5004
5005 if selection.start.row == selection.end.row {
5006 delta_for_start_row + delta_for_end_row
5007 } else {
5008 delta_for_end_row
5009 }
5010 }
5011
5012 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5013 if self.read_only(cx) {
5014 return;
5015 }
5016 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5017 let selections = self.selections.all::<Point>(cx);
5018 let mut deletion_ranges = Vec::new();
5019 let mut last_outdent = None;
5020 {
5021 let buffer = self.buffer.read(cx);
5022 let snapshot = buffer.snapshot(cx);
5023 for selection in &selections {
5024 let settings = buffer.settings_at(selection.start, cx);
5025 let tab_size = settings.tab_size.get();
5026 let mut rows = selection.spanned_rows(false, &display_map);
5027
5028 // Avoid re-outdenting a row that has already been outdented by a
5029 // previous selection.
5030 if let Some(last_row) = last_outdent {
5031 if last_row == rows.start {
5032 rows.start += 1;
5033 }
5034 }
5035 let has_multiple_rows = rows.len() > 1;
5036 for row in rows {
5037 let indent_size = snapshot.indent_size_for_line(row);
5038 if indent_size.len > 0 {
5039 let deletion_len = match indent_size.kind {
5040 IndentKind::Space => {
5041 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5042 if columns_to_prev_tab_stop == 0 {
5043 tab_size
5044 } else {
5045 columns_to_prev_tab_stop
5046 }
5047 }
5048 IndentKind::Tab => 1,
5049 };
5050 let start = if has_multiple_rows
5051 || deletion_len > selection.start.column
5052 || indent_size.len < selection.start.column
5053 {
5054 0
5055 } else {
5056 selection.start.column - deletion_len
5057 };
5058 deletion_ranges
5059 .push(Point::new(row, start)..Point::new(row, start + deletion_len));
5060 last_outdent = Some(row);
5061 }
5062 }
5063 }
5064 }
5065
5066 self.transact(cx, |this, cx| {
5067 this.buffer.update(cx, |buffer, cx| {
5068 let empty_str: Arc<str> = "".into();
5069 buffer.edit(
5070 deletion_ranges
5071 .into_iter()
5072 .map(|range| (range, empty_str.clone())),
5073 None,
5074 cx,
5075 );
5076 });
5077 let selections = this.selections.all::<usize>(cx);
5078 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5079 });
5080 }
5081
5082 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5083 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5084 let selections = self.selections.all::<Point>(cx);
5085
5086 let mut new_cursors = Vec::new();
5087 let mut edit_ranges = Vec::new();
5088 let mut selections = selections.iter().peekable();
5089 while let Some(selection) = selections.next() {
5090 let mut rows = selection.spanned_rows(false, &display_map);
5091 let goal_display_column = selection.head().to_display_point(&display_map).column();
5092
5093 // Accumulate contiguous regions of rows that we want to delete.
5094 while let Some(next_selection) = selections.peek() {
5095 let next_rows = next_selection.spanned_rows(false, &display_map);
5096 if next_rows.start <= rows.end {
5097 rows.end = next_rows.end;
5098 selections.next().unwrap();
5099 } else {
5100 break;
5101 }
5102 }
5103
5104 let buffer = &display_map.buffer_snapshot;
5105 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
5106 let edit_end;
5107 let cursor_buffer_row;
5108 if buffer.max_point().row >= rows.end {
5109 // If there's a line after the range, delete the \n from the end of the row range
5110 // and position the cursor on the next line.
5111 edit_end = Point::new(rows.end, 0).to_offset(buffer);
5112 cursor_buffer_row = rows.end;
5113 } else {
5114 // If there isn't a line after the range, delete the \n from the line before the
5115 // start of the row range and position the cursor there.
5116 edit_start = edit_start.saturating_sub(1);
5117 edit_end = buffer.len();
5118 cursor_buffer_row = rows.start.saturating_sub(1);
5119 }
5120
5121 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
5122 *cursor.column_mut() =
5123 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5124
5125 new_cursors.push((
5126 selection.id,
5127 buffer.anchor_after(cursor.to_point(&display_map)),
5128 ));
5129 edit_ranges.push(edit_start..edit_end);
5130 }
5131
5132 self.transact(cx, |this, cx| {
5133 let buffer = this.buffer.update(cx, |buffer, cx| {
5134 let empty_str: Arc<str> = "".into();
5135 buffer.edit(
5136 edit_ranges
5137 .into_iter()
5138 .map(|range| (range, empty_str.clone())),
5139 None,
5140 cx,
5141 );
5142 buffer.snapshot(cx)
5143 });
5144 let new_selections = new_cursors
5145 .into_iter()
5146 .map(|(id, cursor)| {
5147 let cursor = cursor.to_point(&buffer);
5148 Selection {
5149 id,
5150 start: cursor,
5151 end: cursor,
5152 reversed: false,
5153 goal: SelectionGoal::None,
5154 }
5155 })
5156 .collect();
5157
5158 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5159 s.select(new_selections);
5160 });
5161 });
5162 }
5163
5164 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5165 if self.read_only(cx) {
5166 return;
5167 }
5168 let mut row_ranges = Vec::<Range<u32>>::new();
5169 for selection in self.selections.all::<Point>(cx) {
5170 let start = selection.start.row;
5171 let end = if selection.start.row == selection.end.row {
5172 selection.start.row + 1
5173 } else {
5174 selection.end.row
5175 };
5176
5177 if let Some(last_row_range) = row_ranges.last_mut() {
5178 if start <= last_row_range.end {
5179 last_row_range.end = end;
5180 continue;
5181 }
5182 }
5183 row_ranges.push(start..end);
5184 }
5185
5186 let snapshot = self.buffer.read(cx).snapshot(cx);
5187 let mut cursor_positions = Vec::new();
5188 for row_range in &row_ranges {
5189 let anchor = snapshot.anchor_before(Point::new(
5190 row_range.end - 1,
5191 snapshot.line_len(row_range.end - 1),
5192 ));
5193 cursor_positions.push(anchor..anchor);
5194 }
5195
5196 self.transact(cx, |this, cx| {
5197 for row_range in row_ranges.into_iter().rev() {
5198 for row in row_range.rev() {
5199 let end_of_line = Point::new(row, snapshot.line_len(row));
5200 let indent = snapshot.indent_size_for_line(row + 1);
5201 let start_of_next_line = Point::new(row + 1, indent.len);
5202
5203 let replace = if snapshot.line_len(row + 1) > indent.len {
5204 " "
5205 } else {
5206 ""
5207 };
5208
5209 this.buffer.update(cx, |buffer, cx| {
5210 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5211 });
5212 }
5213 }
5214
5215 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5216 s.select_anchor_ranges(cursor_positions)
5217 });
5218 });
5219 }
5220
5221 pub fn sort_lines_case_sensitive(
5222 &mut self,
5223 _: &SortLinesCaseSensitive,
5224 cx: &mut ViewContext<Self>,
5225 ) {
5226 self.manipulate_lines(cx, |lines| lines.sort())
5227 }
5228
5229 pub fn sort_lines_case_insensitive(
5230 &mut self,
5231 _: &SortLinesCaseInsensitive,
5232 cx: &mut ViewContext<Self>,
5233 ) {
5234 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5235 }
5236
5237 pub fn unique_lines_case_insensitive(
5238 &mut self,
5239 _: &UniqueLinesCaseInsensitive,
5240 cx: &mut ViewContext<Self>,
5241 ) {
5242 self.manipulate_lines(cx, |lines| {
5243 let mut seen = HashSet::default();
5244 lines.retain(|line| seen.insert(line.to_lowercase()));
5245 })
5246 }
5247
5248 pub fn unique_lines_case_sensitive(
5249 &mut self,
5250 _: &UniqueLinesCaseSensitive,
5251 cx: &mut ViewContext<Self>,
5252 ) {
5253 self.manipulate_lines(cx, |lines| {
5254 let mut seen = HashSet::default();
5255 lines.retain(|line| seen.insert(*line));
5256 })
5257 }
5258
5259 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5260 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5261 if !revert_changes.is_empty() {
5262 self.transact(cx, |editor, cx| {
5263 editor.buffer().update(cx, |multi_buffer, cx| {
5264 for (buffer_id, changes) in revert_changes {
5265 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5266 buffer.update(cx, |buffer, cx| {
5267 buffer.edit(
5268 changes.into_iter().map(|(range, text)| {
5269 (range, text.to_string().map(Arc::<str>::from))
5270 }),
5271 None,
5272 cx,
5273 );
5274 });
5275 }
5276 }
5277 });
5278 editor.change_selections(None, cx, |selections| selections.refresh());
5279 });
5280 }
5281 }
5282
5283 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5284 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5285 let project_path = buffer.read(cx).project_path(cx)?;
5286 let project = self.project.as_ref()?.read(cx);
5287 let entry = project.entry_for_path(&project_path, cx)?;
5288 let abs_path = project.absolute_path(&project_path, cx)?;
5289 let parent = if entry.is_symlink {
5290 abs_path.canonicalize().ok()?
5291 } else {
5292 abs_path
5293 }
5294 .parent()?
5295 .to_path_buf();
5296 Some(parent)
5297 }) {
5298 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5299 }
5300 }
5301
5302 fn gather_revert_changes(
5303 &mut self,
5304 selections: &[Selection<Anchor>],
5305 cx: &mut ViewContext<'_, Editor>,
5306 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5307 let mut revert_changes = HashMap::default();
5308 self.buffer.update(cx, |multi_buffer, cx| {
5309 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5310 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5311 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5312 }
5313 });
5314 revert_changes
5315 }
5316
5317 fn prepare_revert_change(
5318 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5319 multi_buffer: &MultiBuffer,
5320 hunk: &DiffHunk<u32>,
5321 cx: &mut AppContext,
5322 ) -> Option<()> {
5323 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5324 let buffer = buffer.read(cx);
5325 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5326 let buffer_snapshot = buffer.snapshot();
5327 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5328 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5329 probe
5330 .0
5331 .start
5332 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5333 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5334 }) {
5335 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5336 Some(())
5337 } else {
5338 None
5339 }
5340 }
5341
5342 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5343 self.manipulate_lines(cx, |lines| lines.reverse())
5344 }
5345
5346 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5347 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5348 }
5349
5350 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5351 where
5352 Fn: FnMut(&mut Vec<&str>),
5353 {
5354 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5355 let buffer = self.buffer.read(cx).snapshot(cx);
5356
5357 let mut edits = Vec::new();
5358
5359 let selections = self.selections.all::<Point>(cx);
5360 let mut selections = selections.iter().peekable();
5361 let mut contiguous_row_selections = Vec::new();
5362 let mut new_selections = Vec::new();
5363 let mut added_lines = 0;
5364 let mut removed_lines = 0;
5365
5366 while let Some(selection) = selections.next() {
5367 let (start_row, end_row) = consume_contiguous_rows(
5368 &mut contiguous_row_selections,
5369 selection,
5370 &display_map,
5371 &mut selections,
5372 );
5373
5374 let start_point = Point::new(start_row, 0);
5375 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5376 let text = buffer
5377 .text_for_range(start_point..end_point)
5378 .collect::<String>();
5379
5380 let mut lines = text.split('\n').collect_vec();
5381
5382 let lines_before = lines.len();
5383 callback(&mut lines);
5384 let lines_after = lines.len();
5385
5386 edits.push((start_point..end_point, lines.join("\n")));
5387
5388 // Selections must change based on added and removed line count
5389 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5390 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5391 new_selections.push(Selection {
5392 id: selection.id,
5393 start: start_row,
5394 end: end_row,
5395 goal: SelectionGoal::None,
5396 reversed: selection.reversed,
5397 });
5398
5399 if lines_after > lines_before {
5400 added_lines += lines_after - lines_before;
5401 } else if lines_before > lines_after {
5402 removed_lines += lines_before - lines_after;
5403 }
5404 }
5405
5406 self.transact(cx, |this, cx| {
5407 let buffer = this.buffer.update(cx, |buffer, cx| {
5408 buffer.edit(edits, None, cx);
5409 buffer.snapshot(cx)
5410 });
5411
5412 // Recalculate offsets on newly edited buffer
5413 let new_selections = new_selections
5414 .iter()
5415 .map(|s| {
5416 let start_point = Point::new(s.start, 0);
5417 let end_point = Point::new(s.end, buffer.line_len(s.end));
5418 Selection {
5419 id: s.id,
5420 start: buffer.point_to_offset(start_point),
5421 end: buffer.point_to_offset(end_point),
5422 goal: s.goal,
5423 reversed: s.reversed,
5424 }
5425 })
5426 .collect();
5427
5428 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5429 s.select(new_selections);
5430 });
5431
5432 this.request_autoscroll(Autoscroll::fit(), cx);
5433 });
5434 }
5435
5436 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5437 self.manipulate_text(cx, |text| text.to_uppercase())
5438 }
5439
5440 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5441 self.manipulate_text(cx, |text| text.to_lowercase())
5442 }
5443
5444 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5445 self.manipulate_text(cx, |text| {
5446 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5447 // https://github.com/rutrum/convert-case/issues/16
5448 text.split('\n')
5449 .map(|line| line.to_case(Case::Title))
5450 .join("\n")
5451 })
5452 }
5453
5454 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5455 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5456 }
5457
5458 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5459 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5460 }
5461
5462 pub fn convert_to_upper_camel_case(
5463 &mut self,
5464 _: &ConvertToUpperCamelCase,
5465 cx: &mut ViewContext<Self>,
5466 ) {
5467 self.manipulate_text(cx, |text| {
5468 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5469 // https://github.com/rutrum/convert-case/issues/16
5470 text.split('\n')
5471 .map(|line| line.to_case(Case::UpperCamel))
5472 .join("\n")
5473 })
5474 }
5475
5476 pub fn convert_to_lower_camel_case(
5477 &mut self,
5478 _: &ConvertToLowerCamelCase,
5479 cx: &mut ViewContext<Self>,
5480 ) {
5481 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5482 }
5483
5484 pub fn convert_to_opposite_case(
5485 &mut self,
5486 _: &ConvertToOppositeCase,
5487 cx: &mut ViewContext<Self>,
5488 ) {
5489 self.manipulate_text(cx, |text| {
5490 text.chars()
5491 .fold(String::with_capacity(text.len()), |mut t, c| {
5492 if c.is_uppercase() {
5493 t.extend(c.to_lowercase());
5494 } else {
5495 t.extend(c.to_uppercase());
5496 }
5497 t
5498 })
5499 })
5500 }
5501
5502 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5503 where
5504 Fn: FnMut(&str) -> String,
5505 {
5506 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5507 let buffer = self.buffer.read(cx).snapshot(cx);
5508
5509 let mut new_selections = Vec::new();
5510 let mut edits = Vec::new();
5511 let mut selection_adjustment = 0i32;
5512
5513 for selection in self.selections.all::<usize>(cx) {
5514 let selection_is_empty = selection.is_empty();
5515
5516 let (start, end) = if selection_is_empty {
5517 let word_range = movement::surrounding_word(
5518 &display_map,
5519 selection.start.to_display_point(&display_map),
5520 );
5521 let start = word_range.start.to_offset(&display_map, Bias::Left);
5522 let end = word_range.end.to_offset(&display_map, Bias::Left);
5523 (start, end)
5524 } else {
5525 (selection.start, selection.end)
5526 };
5527
5528 let text = buffer.text_for_range(start..end).collect::<String>();
5529 let old_length = text.len() as i32;
5530 let text = callback(&text);
5531
5532 new_selections.push(Selection {
5533 start: (start as i32 - selection_adjustment) as usize,
5534 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5535 goal: SelectionGoal::None,
5536 ..selection
5537 });
5538
5539 selection_adjustment += old_length - text.len() as i32;
5540
5541 edits.push((start..end, text));
5542 }
5543
5544 self.transact(cx, |this, cx| {
5545 this.buffer.update(cx, |buffer, cx| {
5546 buffer.edit(edits, None, cx);
5547 });
5548
5549 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5550 s.select(new_selections);
5551 });
5552
5553 this.request_autoscroll(Autoscroll::fit(), cx);
5554 });
5555 }
5556
5557 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5558 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5559 let buffer = &display_map.buffer_snapshot;
5560 let selections = self.selections.all::<Point>(cx);
5561
5562 let mut edits = Vec::new();
5563 let mut selections_iter = selections.iter().peekable();
5564 while let Some(selection) = selections_iter.next() {
5565 // Avoid duplicating the same lines twice.
5566 let mut rows = selection.spanned_rows(false, &display_map);
5567
5568 while let Some(next_selection) = selections_iter.peek() {
5569 let next_rows = next_selection.spanned_rows(false, &display_map);
5570 if next_rows.start < rows.end {
5571 rows.end = next_rows.end;
5572 selections_iter.next().unwrap();
5573 } else {
5574 break;
5575 }
5576 }
5577
5578 // Copy the text from the selected row region and splice it either at the start
5579 // or end of the region.
5580 let start = Point::new(rows.start, 0);
5581 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5582 let text = buffer
5583 .text_for_range(start..end)
5584 .chain(Some("\n"))
5585 .collect::<String>();
5586 let insert_location = if upwards {
5587 Point::new(rows.end, 0)
5588 } else {
5589 start
5590 };
5591 edits.push((insert_location..insert_location, text));
5592 }
5593
5594 self.transact(cx, |this, cx| {
5595 this.buffer.update(cx, |buffer, cx| {
5596 buffer.edit(edits, None, cx);
5597 });
5598
5599 this.request_autoscroll(Autoscroll::fit(), cx);
5600 });
5601 }
5602
5603 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5604 self.duplicate_line(true, cx);
5605 }
5606
5607 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5608 self.duplicate_line(false, cx);
5609 }
5610
5611 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5612 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5613 let buffer = self.buffer.read(cx).snapshot(cx);
5614
5615 let mut edits = Vec::new();
5616 let mut unfold_ranges = Vec::new();
5617 let mut refold_ranges = Vec::new();
5618
5619 let selections = self.selections.all::<Point>(cx);
5620 let mut selections = selections.iter().peekable();
5621 let mut contiguous_row_selections = Vec::new();
5622 let mut new_selections = Vec::new();
5623
5624 while let Some(selection) = selections.next() {
5625 // Find all the selections that span a contiguous row range
5626 let (start_row, end_row) = consume_contiguous_rows(
5627 &mut contiguous_row_selections,
5628 selection,
5629 &display_map,
5630 &mut selections,
5631 );
5632
5633 // Move the text spanned by the row range to be before the line preceding the row range
5634 if start_row > 0 {
5635 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5636 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5637 let insertion_point = display_map
5638 .prev_line_boundary(Point::new(start_row - 1, 0))
5639 .0;
5640
5641 // Don't move lines across excerpts
5642 if buffer
5643 .excerpt_boundaries_in_range((
5644 Bound::Excluded(insertion_point),
5645 Bound::Included(range_to_move.end),
5646 ))
5647 .next()
5648 .is_none()
5649 {
5650 let text = buffer
5651 .text_for_range(range_to_move.clone())
5652 .flat_map(|s| s.chars())
5653 .skip(1)
5654 .chain(['\n'])
5655 .collect::<String>();
5656
5657 edits.push((
5658 buffer.anchor_after(range_to_move.start)
5659 ..buffer.anchor_before(range_to_move.end),
5660 String::new(),
5661 ));
5662 let insertion_anchor = buffer.anchor_after(insertion_point);
5663 edits.push((insertion_anchor..insertion_anchor, text));
5664
5665 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5666
5667 // Move selections up
5668 new_selections.extend(contiguous_row_selections.drain(..).map(
5669 |mut selection| {
5670 selection.start.row -= row_delta;
5671 selection.end.row -= row_delta;
5672 selection
5673 },
5674 ));
5675
5676 // Move folds up
5677 unfold_ranges.push(range_to_move.clone());
5678 for fold in display_map.folds_in_range(
5679 buffer.anchor_before(range_to_move.start)
5680 ..buffer.anchor_after(range_to_move.end),
5681 ) {
5682 let mut start = fold.range.start.to_point(&buffer);
5683 let mut end = fold.range.end.to_point(&buffer);
5684 start.row -= row_delta;
5685 end.row -= row_delta;
5686 refold_ranges.push(start..end);
5687 }
5688 }
5689 }
5690
5691 // If we didn't move line(s), preserve the existing selections
5692 new_selections.append(&mut contiguous_row_selections);
5693 }
5694
5695 self.transact(cx, |this, cx| {
5696 this.unfold_ranges(unfold_ranges, true, true, cx);
5697 this.buffer.update(cx, |buffer, cx| {
5698 for (range, text) in edits {
5699 buffer.edit([(range, text)], None, cx);
5700 }
5701 });
5702 this.fold_ranges(refold_ranges, true, cx);
5703 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5704 s.select(new_selections);
5705 })
5706 });
5707 }
5708
5709 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5710 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5711 let buffer = self.buffer.read(cx).snapshot(cx);
5712
5713 let mut edits = Vec::new();
5714 let mut unfold_ranges = Vec::new();
5715 let mut refold_ranges = Vec::new();
5716
5717 let selections = self.selections.all::<Point>(cx);
5718 let mut selections = selections.iter().peekable();
5719 let mut contiguous_row_selections = Vec::new();
5720 let mut new_selections = Vec::new();
5721
5722 while let Some(selection) = selections.next() {
5723 // Find all the selections that span a contiguous row range
5724 let (start_row, end_row) = consume_contiguous_rows(
5725 &mut contiguous_row_selections,
5726 selection,
5727 &display_map,
5728 &mut selections,
5729 );
5730
5731 // Move the text spanned by the row range to be after the last line of the row range
5732 if end_row <= buffer.max_point().row {
5733 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5734 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5735
5736 // Don't move lines across excerpt boundaries
5737 if buffer
5738 .excerpt_boundaries_in_range((
5739 Bound::Excluded(range_to_move.start),
5740 Bound::Included(insertion_point),
5741 ))
5742 .next()
5743 .is_none()
5744 {
5745 let mut text = String::from("\n");
5746 text.extend(buffer.text_for_range(range_to_move.clone()));
5747 text.pop(); // Drop trailing newline
5748 edits.push((
5749 buffer.anchor_after(range_to_move.start)
5750 ..buffer.anchor_before(range_to_move.end),
5751 String::new(),
5752 ));
5753 let insertion_anchor = buffer.anchor_after(insertion_point);
5754 edits.push((insertion_anchor..insertion_anchor, text));
5755
5756 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5757
5758 // Move selections down
5759 new_selections.extend(contiguous_row_selections.drain(..).map(
5760 |mut selection| {
5761 selection.start.row += row_delta;
5762 selection.end.row += row_delta;
5763 selection
5764 },
5765 ));
5766
5767 // Move folds down
5768 unfold_ranges.push(range_to_move.clone());
5769 for fold in display_map.folds_in_range(
5770 buffer.anchor_before(range_to_move.start)
5771 ..buffer.anchor_after(range_to_move.end),
5772 ) {
5773 let mut start = fold.range.start.to_point(&buffer);
5774 let mut end = fold.range.end.to_point(&buffer);
5775 start.row += row_delta;
5776 end.row += row_delta;
5777 refold_ranges.push(start..end);
5778 }
5779 }
5780 }
5781
5782 // If we didn't move line(s), preserve the existing selections
5783 new_selections.append(&mut contiguous_row_selections);
5784 }
5785
5786 self.transact(cx, |this, cx| {
5787 this.unfold_ranges(unfold_ranges, true, true, cx);
5788 this.buffer.update(cx, |buffer, cx| {
5789 for (range, text) in edits {
5790 buffer.edit([(range, text)], None, cx);
5791 }
5792 });
5793 this.fold_ranges(refold_ranges, true, cx);
5794 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5795 });
5796 }
5797
5798 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5799 let text_layout_details = &self.text_layout_details(cx);
5800 self.transact(cx, |this, cx| {
5801 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5802 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5803 let line_mode = s.line_mode;
5804 s.move_with(|display_map, selection| {
5805 if !selection.is_empty() || line_mode {
5806 return;
5807 }
5808
5809 let mut head = selection.head();
5810 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5811 if head.column() == display_map.line_len(head.row()) {
5812 transpose_offset = display_map
5813 .buffer_snapshot
5814 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5815 }
5816
5817 if transpose_offset == 0 {
5818 return;
5819 }
5820
5821 *head.column_mut() += 1;
5822 head = display_map.clip_point(head, Bias::Right);
5823 let goal = SelectionGoal::HorizontalPosition(
5824 display_map
5825 .x_for_display_point(head, &text_layout_details)
5826 .into(),
5827 );
5828 selection.collapse_to(head, goal);
5829
5830 let transpose_start = display_map
5831 .buffer_snapshot
5832 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5833 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5834 let transpose_end = display_map
5835 .buffer_snapshot
5836 .clip_offset(transpose_offset + 1, Bias::Right);
5837 if let Some(ch) =
5838 display_map.buffer_snapshot.chars_at(transpose_start).next()
5839 {
5840 edits.push((transpose_start..transpose_offset, String::new()));
5841 edits.push((transpose_end..transpose_end, ch.to_string()));
5842 }
5843 }
5844 });
5845 edits
5846 });
5847 this.buffer
5848 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5849 let selections = this.selections.all::<usize>(cx);
5850 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5851 s.select(selections);
5852 });
5853 });
5854 }
5855
5856 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5857 let mut text = String::new();
5858 let buffer = self.buffer.read(cx).snapshot(cx);
5859 let mut selections = self.selections.all::<Point>(cx);
5860 let mut clipboard_selections = Vec::with_capacity(selections.len());
5861 {
5862 let max_point = buffer.max_point();
5863 let mut is_first = true;
5864 for selection in &mut selections {
5865 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5866 if is_entire_line {
5867 selection.start = Point::new(selection.start.row, 0);
5868 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5869 selection.goal = SelectionGoal::None;
5870 }
5871 if is_first {
5872 is_first = false;
5873 } else {
5874 text += "\n";
5875 }
5876 let mut len = 0;
5877 for chunk in buffer.text_for_range(selection.start..selection.end) {
5878 text.push_str(chunk);
5879 len += chunk.len();
5880 }
5881 clipboard_selections.push(ClipboardSelection {
5882 len,
5883 is_entire_line,
5884 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5885 });
5886 }
5887 }
5888
5889 self.transact(cx, |this, cx| {
5890 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5891 s.select(selections);
5892 });
5893 this.insert("", cx);
5894 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5895 });
5896 }
5897
5898 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5899 let selections = self.selections.all::<Point>(cx);
5900 let buffer = self.buffer.read(cx).read(cx);
5901 let mut text = String::new();
5902
5903 let mut clipboard_selections = Vec::with_capacity(selections.len());
5904 {
5905 let max_point = buffer.max_point();
5906 let mut is_first = true;
5907 for selection in selections.iter() {
5908 let mut start = selection.start;
5909 let mut end = selection.end;
5910 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5911 if is_entire_line {
5912 start = Point::new(start.row, 0);
5913 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5914 }
5915 if is_first {
5916 is_first = false;
5917 } else {
5918 text += "\n";
5919 }
5920 let mut len = 0;
5921 for chunk in buffer.text_for_range(start..end) {
5922 text.push_str(chunk);
5923 len += chunk.len();
5924 }
5925 clipboard_selections.push(ClipboardSelection {
5926 len,
5927 is_entire_line,
5928 first_line_indent: buffer.indent_size_for_line(start.row).len,
5929 });
5930 }
5931 }
5932
5933 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5934 }
5935
5936 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5937 if self.read_only(cx) {
5938 return;
5939 }
5940
5941 self.transact(cx, |this, cx| {
5942 if let Some(item) = cx.read_from_clipboard() {
5943 let clipboard_text = Cow::Borrowed(item.text());
5944 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5945 let old_selections = this.selections.all::<usize>(cx);
5946 let all_selections_were_entire_line =
5947 clipboard_selections.iter().all(|s| s.is_entire_line);
5948 let first_selection_indent_column =
5949 clipboard_selections.first().map(|s| s.first_line_indent);
5950 if clipboard_selections.len() != old_selections.len() {
5951 clipboard_selections.drain(..);
5952 }
5953
5954 this.buffer.update(cx, |buffer, cx| {
5955 let snapshot = buffer.read(cx);
5956 let mut start_offset = 0;
5957 let mut edits = Vec::new();
5958 let mut original_indent_columns = Vec::new();
5959 let line_mode = this.selections.line_mode;
5960 for (ix, selection) in old_selections.iter().enumerate() {
5961 let to_insert;
5962 let entire_line;
5963 let original_indent_column;
5964 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5965 let end_offset = start_offset + clipboard_selection.len;
5966 to_insert = &clipboard_text[start_offset..end_offset];
5967 entire_line = clipboard_selection.is_entire_line;
5968 start_offset = end_offset + 1;
5969 original_indent_column =
5970 Some(clipboard_selection.first_line_indent);
5971 } else {
5972 to_insert = clipboard_text.as_str();
5973 entire_line = all_selections_were_entire_line;
5974 original_indent_column = first_selection_indent_column
5975 }
5976
5977 // If the corresponding selection was empty when this slice of the
5978 // clipboard text was written, then the entire line containing the
5979 // selection was copied. If this selection is also currently empty,
5980 // then paste the line before the current line of the buffer.
5981 let range = if selection.is_empty() && !line_mode && entire_line {
5982 let column = selection.start.to_point(&snapshot).column as usize;
5983 let line_start = selection.start - column;
5984 line_start..line_start
5985 } else {
5986 selection.range()
5987 };
5988
5989 edits.push((range, to_insert));
5990 original_indent_columns.extend(original_indent_column);
5991 }
5992 drop(snapshot);
5993
5994 buffer.edit(
5995 edits,
5996 Some(AutoindentMode::Block {
5997 original_indent_columns,
5998 }),
5999 cx,
6000 );
6001 });
6002
6003 let selections = this.selections.all::<usize>(cx);
6004 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6005 } else {
6006 this.insert(&clipboard_text, cx);
6007 }
6008 }
6009 });
6010 }
6011
6012 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6013 if self.read_only(cx) {
6014 return;
6015 }
6016
6017 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6018 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6019 self.change_selections(None, cx, |s| {
6020 s.select_anchors(selections.to_vec());
6021 });
6022 }
6023 self.request_autoscroll(Autoscroll::fit(), cx);
6024 self.unmark_text(cx);
6025 self.refresh_inline_completion(true, cx);
6026 cx.emit(EditorEvent::Edited);
6027 cx.emit(EditorEvent::TransactionUndone {
6028 transaction_id: tx_id,
6029 });
6030 }
6031 }
6032
6033 pub fn redo(&mut self, _: &Redo, 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.redo(cx)) {
6039 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6040 {
6041 self.change_selections(None, cx, |s| {
6042 s.select_anchors(selections.to_vec());
6043 });
6044 }
6045 self.request_autoscroll(Autoscroll::fit(), cx);
6046 self.unmark_text(cx);
6047 self.refresh_inline_completion(true, cx);
6048 cx.emit(EditorEvent::Edited);
6049 }
6050 }
6051
6052 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6053 self.buffer
6054 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6055 }
6056
6057 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6058 self.buffer
6059 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6060 }
6061
6062 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6063 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6064 let line_mode = s.line_mode;
6065 s.move_with(|map, selection| {
6066 let cursor = if selection.is_empty() && !line_mode {
6067 movement::left(map, selection.start)
6068 } else {
6069 selection.start
6070 };
6071 selection.collapse_to(cursor, SelectionGoal::None);
6072 });
6073 })
6074 }
6075
6076 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6077 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6078 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6079 })
6080 }
6081
6082 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6083 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6084 let line_mode = s.line_mode;
6085 s.move_with(|map, selection| {
6086 let cursor = if selection.is_empty() && !line_mode {
6087 movement::right(map, selection.end)
6088 } else {
6089 selection.end
6090 };
6091 selection.collapse_to(cursor, SelectionGoal::None)
6092 });
6093 })
6094 }
6095
6096 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6098 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6099 })
6100 }
6101
6102 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6103 if self.take_rename(true, cx).is_some() {
6104 return;
6105 }
6106
6107 if matches!(self.mode, EditorMode::SingleLine) {
6108 cx.propagate();
6109 return;
6110 }
6111
6112 let text_layout_details = &self.text_layout_details(cx);
6113
6114 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6115 let line_mode = s.line_mode;
6116 s.move_with(|map, selection| {
6117 if !selection.is_empty() && !line_mode {
6118 selection.goal = SelectionGoal::None;
6119 }
6120 let (cursor, goal) = movement::up(
6121 map,
6122 selection.start,
6123 selection.goal,
6124 false,
6125 &text_layout_details,
6126 );
6127 selection.collapse_to(cursor, goal);
6128 });
6129 })
6130 }
6131
6132 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6133 if self.take_rename(true, cx).is_some() {
6134 return;
6135 }
6136
6137 if matches!(self.mode, EditorMode::SingleLine) {
6138 cx.propagate();
6139 return;
6140 }
6141
6142 let text_layout_details = &self.text_layout_details(cx);
6143
6144 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6145 let line_mode = s.line_mode;
6146 s.move_with(|map, selection| {
6147 if !selection.is_empty() && !line_mode {
6148 selection.goal = SelectionGoal::None;
6149 }
6150 let (cursor, goal) = movement::up_by_rows(
6151 map,
6152 selection.start,
6153 action.lines,
6154 selection.goal,
6155 false,
6156 &text_layout_details,
6157 );
6158 selection.collapse_to(cursor, goal);
6159 });
6160 })
6161 }
6162
6163 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6164 if self.take_rename(true, cx).is_some() {
6165 return;
6166 }
6167
6168 if matches!(self.mode, EditorMode::SingleLine) {
6169 cx.propagate();
6170 return;
6171 }
6172
6173 let text_layout_details = &self.text_layout_details(cx);
6174
6175 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6176 let line_mode = s.line_mode;
6177 s.move_with(|map, selection| {
6178 if !selection.is_empty() && !line_mode {
6179 selection.goal = SelectionGoal::None;
6180 }
6181 let (cursor, goal) = movement::down_by_rows(
6182 map,
6183 selection.start,
6184 action.lines,
6185 selection.goal,
6186 false,
6187 &text_layout_details,
6188 );
6189 selection.collapse_to(cursor, goal);
6190 });
6191 })
6192 }
6193
6194 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6195 let text_layout_details = &self.text_layout_details(cx);
6196 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6197 s.move_heads_with(|map, head, goal| {
6198 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6199 })
6200 })
6201 }
6202
6203 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6204 let text_layout_details = &self.text_layout_details(cx);
6205 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6206 s.move_heads_with(|map, head, goal| {
6207 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6208 })
6209 })
6210 }
6211
6212 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6213 if self.take_rename(true, cx).is_some() {
6214 return;
6215 }
6216
6217 if matches!(self.mode, EditorMode::SingleLine) {
6218 cx.propagate();
6219 return;
6220 }
6221
6222 let row_count = if let Some(row_count) = self.visible_line_count() {
6223 row_count as u32 - 1
6224 } else {
6225 return;
6226 };
6227
6228 let autoscroll = if action.center_cursor {
6229 Autoscroll::center()
6230 } else {
6231 Autoscroll::fit()
6232 };
6233
6234 let text_layout_details = &self.text_layout_details(cx);
6235
6236 self.change_selections(Some(autoscroll), cx, |s| {
6237 let line_mode = s.line_mode;
6238 s.move_with(|map, selection| {
6239 if !selection.is_empty() && !line_mode {
6240 selection.goal = SelectionGoal::None;
6241 }
6242 let (cursor, goal) = movement::up_by_rows(
6243 map,
6244 selection.end,
6245 row_count,
6246 selection.goal,
6247 false,
6248 &text_layout_details,
6249 );
6250 selection.collapse_to(cursor, goal);
6251 });
6252 });
6253 }
6254
6255 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6256 let text_layout_details = &self.text_layout_details(cx);
6257 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6258 s.move_heads_with(|map, head, goal| {
6259 movement::up(map, head, goal, false, &text_layout_details)
6260 })
6261 })
6262 }
6263
6264 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6265 self.take_rename(true, cx);
6266
6267 if self.mode == EditorMode::SingleLine {
6268 cx.propagate();
6269 return;
6270 }
6271
6272 let text_layout_details = &self.text_layout_details(cx);
6273 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6274 let line_mode = s.line_mode;
6275 s.move_with(|map, selection| {
6276 if !selection.is_empty() && !line_mode {
6277 selection.goal = SelectionGoal::None;
6278 }
6279 let (cursor, goal) = movement::down(
6280 map,
6281 selection.end,
6282 selection.goal,
6283 false,
6284 &text_layout_details,
6285 );
6286 selection.collapse_to(cursor, goal);
6287 });
6288 });
6289 }
6290
6291 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6292 if self.take_rename(true, cx).is_some() {
6293 return;
6294 }
6295
6296 if self
6297 .context_menu
6298 .write()
6299 .as_mut()
6300 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6301 .unwrap_or(false)
6302 {
6303 return;
6304 }
6305
6306 if matches!(self.mode, EditorMode::SingleLine) {
6307 cx.propagate();
6308 return;
6309 }
6310
6311 let row_count = if let Some(row_count) = self.visible_line_count() {
6312 row_count as u32 - 1
6313 } else {
6314 return;
6315 };
6316
6317 let autoscroll = if action.center_cursor {
6318 Autoscroll::center()
6319 } else {
6320 Autoscroll::fit()
6321 };
6322
6323 let text_layout_details = &self.text_layout_details(cx);
6324 self.change_selections(Some(autoscroll), cx, |s| {
6325 let line_mode = s.line_mode;
6326 s.move_with(|map, selection| {
6327 if !selection.is_empty() && !line_mode {
6328 selection.goal = SelectionGoal::None;
6329 }
6330 let (cursor, goal) = movement::down_by_rows(
6331 map,
6332 selection.end,
6333 row_count,
6334 selection.goal,
6335 false,
6336 &text_layout_details,
6337 );
6338 selection.collapse_to(cursor, goal);
6339 });
6340 });
6341 }
6342
6343 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6344 let text_layout_details = &self.text_layout_details(cx);
6345 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6346 s.move_heads_with(|map, head, goal| {
6347 movement::down(map, head, goal, false, &text_layout_details)
6348 })
6349 });
6350 }
6351
6352 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6353 if let Some(context_menu) = self.context_menu.write().as_mut() {
6354 context_menu.select_first(self.project.as_ref(), cx);
6355 }
6356 }
6357
6358 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6359 if let Some(context_menu) = self.context_menu.write().as_mut() {
6360 context_menu.select_prev(self.project.as_ref(), cx);
6361 }
6362 }
6363
6364 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6365 if let Some(context_menu) = self.context_menu.write().as_mut() {
6366 context_menu.select_next(self.project.as_ref(), cx);
6367 }
6368 }
6369
6370 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6371 if let Some(context_menu) = self.context_menu.write().as_mut() {
6372 context_menu.select_last(self.project.as_ref(), cx);
6373 }
6374 }
6375
6376 pub fn move_to_previous_word_start(
6377 &mut self,
6378 _: &MoveToPreviousWordStart,
6379 cx: &mut ViewContext<Self>,
6380 ) {
6381 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6382 s.move_cursors_with(|map, head, _| {
6383 (
6384 movement::previous_word_start(map, head),
6385 SelectionGoal::None,
6386 )
6387 });
6388 })
6389 }
6390
6391 pub fn move_to_previous_subword_start(
6392 &mut self,
6393 _: &MoveToPreviousSubwordStart,
6394 cx: &mut ViewContext<Self>,
6395 ) {
6396 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6397 s.move_cursors_with(|map, head, _| {
6398 (
6399 movement::previous_subword_start(map, head),
6400 SelectionGoal::None,
6401 )
6402 });
6403 })
6404 }
6405
6406 pub fn select_to_previous_word_start(
6407 &mut self,
6408 _: &SelectToPreviousWordStart,
6409 cx: &mut ViewContext<Self>,
6410 ) {
6411 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6412 s.move_heads_with(|map, head, _| {
6413 (
6414 movement::previous_word_start(map, head),
6415 SelectionGoal::None,
6416 )
6417 });
6418 })
6419 }
6420
6421 pub fn select_to_previous_subword_start(
6422 &mut self,
6423 _: &SelectToPreviousSubwordStart,
6424 cx: &mut ViewContext<Self>,
6425 ) {
6426 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6427 s.move_heads_with(|map, head, _| {
6428 (
6429 movement::previous_subword_start(map, head),
6430 SelectionGoal::None,
6431 )
6432 });
6433 })
6434 }
6435
6436 pub fn delete_to_previous_word_start(
6437 &mut self,
6438 _: &DeleteToPreviousWordStart,
6439 cx: &mut ViewContext<Self>,
6440 ) {
6441 self.transact(cx, |this, cx| {
6442 this.select_autoclose_pair(cx);
6443 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6444 let line_mode = s.line_mode;
6445 s.move_with(|map, selection| {
6446 if selection.is_empty() && !line_mode {
6447 let cursor = movement::previous_word_start(map, selection.head());
6448 selection.set_head(cursor, SelectionGoal::None);
6449 }
6450 });
6451 });
6452 this.insert("", cx);
6453 });
6454 }
6455
6456 pub fn delete_to_previous_subword_start(
6457 &mut self,
6458 _: &DeleteToPreviousSubwordStart,
6459 cx: &mut ViewContext<Self>,
6460 ) {
6461 self.transact(cx, |this, cx| {
6462 this.select_autoclose_pair(cx);
6463 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6464 let line_mode = s.line_mode;
6465 s.move_with(|map, selection| {
6466 if selection.is_empty() && !line_mode {
6467 let cursor = movement::previous_subword_start(map, selection.head());
6468 selection.set_head(cursor, SelectionGoal::None);
6469 }
6470 });
6471 });
6472 this.insert("", cx);
6473 });
6474 }
6475
6476 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6477 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6478 s.move_cursors_with(|map, head, _| {
6479 (movement::next_word_end(map, head), SelectionGoal::None)
6480 });
6481 })
6482 }
6483
6484 pub fn move_to_next_subword_end(
6485 &mut self,
6486 _: &MoveToNextSubwordEnd,
6487 cx: &mut ViewContext<Self>,
6488 ) {
6489 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6490 s.move_cursors_with(|map, head, _| {
6491 (movement::next_subword_end(map, head), SelectionGoal::None)
6492 });
6493 })
6494 }
6495
6496 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6497 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6498 s.move_heads_with(|map, head, _| {
6499 (movement::next_word_end(map, head), SelectionGoal::None)
6500 });
6501 })
6502 }
6503
6504 pub fn select_to_next_subword_end(
6505 &mut self,
6506 _: &SelectToNextSubwordEnd,
6507 cx: &mut ViewContext<Self>,
6508 ) {
6509 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6510 s.move_heads_with(|map, head, _| {
6511 (movement::next_subword_end(map, head), SelectionGoal::None)
6512 });
6513 })
6514 }
6515
6516 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6517 self.transact(cx, |this, cx| {
6518 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6519 let line_mode = s.line_mode;
6520 s.move_with(|map, selection| {
6521 if selection.is_empty() && !line_mode {
6522 let cursor = movement::next_word_end(map, selection.head());
6523 selection.set_head(cursor, SelectionGoal::None);
6524 }
6525 });
6526 });
6527 this.insert("", cx);
6528 });
6529 }
6530
6531 pub fn delete_to_next_subword_end(
6532 &mut self,
6533 _: &DeleteToNextSubwordEnd,
6534 cx: &mut ViewContext<Self>,
6535 ) {
6536 self.transact(cx, |this, cx| {
6537 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6538 s.move_with(|map, selection| {
6539 if selection.is_empty() {
6540 let cursor = movement::next_subword_end(map, selection.head());
6541 selection.set_head(cursor, SelectionGoal::None);
6542 }
6543 });
6544 });
6545 this.insert("", cx);
6546 });
6547 }
6548
6549 pub fn move_to_beginning_of_line(
6550 &mut self,
6551 action: &MoveToBeginningOfLine,
6552 cx: &mut ViewContext<Self>,
6553 ) {
6554 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6555 s.move_cursors_with(|map, head, _| {
6556 (
6557 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6558 SelectionGoal::None,
6559 )
6560 });
6561 })
6562 }
6563
6564 pub fn select_to_beginning_of_line(
6565 &mut self,
6566 action: &SelectToBeginningOfLine,
6567 cx: &mut ViewContext<Self>,
6568 ) {
6569 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6570 s.move_heads_with(|map, head, _| {
6571 (
6572 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6573 SelectionGoal::None,
6574 )
6575 });
6576 });
6577 }
6578
6579 pub fn delete_to_beginning_of_line(
6580 &mut self,
6581 _: &DeleteToBeginningOfLine,
6582 cx: &mut ViewContext<Self>,
6583 ) {
6584 self.transact(cx, |this, cx| {
6585 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6586 s.move_with(|_, selection| {
6587 selection.reversed = true;
6588 });
6589 });
6590
6591 this.select_to_beginning_of_line(
6592 &SelectToBeginningOfLine {
6593 stop_at_soft_wraps: false,
6594 },
6595 cx,
6596 );
6597 this.backspace(&Backspace, cx);
6598 });
6599 }
6600
6601 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6602 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6603 s.move_cursors_with(|map, head, _| {
6604 (
6605 movement::line_end(map, head, action.stop_at_soft_wraps),
6606 SelectionGoal::None,
6607 )
6608 });
6609 })
6610 }
6611
6612 pub fn select_to_end_of_line(
6613 &mut self,
6614 action: &SelectToEndOfLine,
6615 cx: &mut ViewContext<Self>,
6616 ) {
6617 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6618 s.move_heads_with(|map, head, _| {
6619 (
6620 movement::line_end(map, head, action.stop_at_soft_wraps),
6621 SelectionGoal::None,
6622 )
6623 });
6624 })
6625 }
6626
6627 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6628 self.transact(cx, |this, cx| {
6629 this.select_to_end_of_line(
6630 &SelectToEndOfLine {
6631 stop_at_soft_wraps: false,
6632 },
6633 cx,
6634 );
6635 this.delete(&Delete, cx);
6636 });
6637 }
6638
6639 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6640 self.transact(cx, |this, cx| {
6641 this.select_to_end_of_line(
6642 &SelectToEndOfLine {
6643 stop_at_soft_wraps: false,
6644 },
6645 cx,
6646 );
6647 this.cut(&Cut, cx);
6648 });
6649 }
6650
6651 pub fn move_to_start_of_paragraph(
6652 &mut self,
6653 _: &MoveToStartOfParagraph,
6654 cx: &mut ViewContext<Self>,
6655 ) {
6656 if matches!(self.mode, EditorMode::SingleLine) {
6657 cx.propagate();
6658 return;
6659 }
6660
6661 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6662 s.move_with(|map, selection| {
6663 selection.collapse_to(
6664 movement::start_of_paragraph(map, selection.head(), 1),
6665 SelectionGoal::None,
6666 )
6667 });
6668 })
6669 }
6670
6671 pub fn move_to_end_of_paragraph(
6672 &mut self,
6673 _: &MoveToEndOfParagraph,
6674 cx: &mut ViewContext<Self>,
6675 ) {
6676 if matches!(self.mode, EditorMode::SingleLine) {
6677 cx.propagate();
6678 return;
6679 }
6680
6681 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6682 s.move_with(|map, selection| {
6683 selection.collapse_to(
6684 movement::end_of_paragraph(map, selection.head(), 1),
6685 SelectionGoal::None,
6686 )
6687 });
6688 })
6689 }
6690
6691 pub fn select_to_start_of_paragraph(
6692 &mut self,
6693 _: &SelectToStartOfParagraph,
6694 cx: &mut ViewContext<Self>,
6695 ) {
6696 if matches!(self.mode, EditorMode::SingleLine) {
6697 cx.propagate();
6698 return;
6699 }
6700
6701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6702 s.move_heads_with(|map, head, _| {
6703 (
6704 movement::start_of_paragraph(map, head, 1),
6705 SelectionGoal::None,
6706 )
6707 });
6708 })
6709 }
6710
6711 pub fn select_to_end_of_paragraph(
6712 &mut self,
6713 _: &SelectToEndOfParagraph,
6714 cx: &mut ViewContext<Self>,
6715 ) {
6716 if matches!(self.mode, EditorMode::SingleLine) {
6717 cx.propagate();
6718 return;
6719 }
6720
6721 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6722 s.move_heads_with(|map, head, _| {
6723 (
6724 movement::end_of_paragraph(map, head, 1),
6725 SelectionGoal::None,
6726 )
6727 });
6728 })
6729 }
6730
6731 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6732 if matches!(self.mode, EditorMode::SingleLine) {
6733 cx.propagate();
6734 return;
6735 }
6736
6737 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6738 s.select_ranges(vec![0..0]);
6739 });
6740 }
6741
6742 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6743 let mut selection = self.selections.last::<Point>(cx);
6744 selection.set_head(Point::zero(), SelectionGoal::None);
6745
6746 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6747 s.select(vec![selection]);
6748 });
6749 }
6750
6751 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6752 if matches!(self.mode, EditorMode::SingleLine) {
6753 cx.propagate();
6754 return;
6755 }
6756
6757 let cursor = self.buffer.read(cx).read(cx).len();
6758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6759 s.select_ranges(vec![cursor..cursor])
6760 });
6761 }
6762
6763 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6764 self.nav_history = nav_history;
6765 }
6766
6767 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6768 self.nav_history.as_ref()
6769 }
6770
6771 fn push_to_nav_history(
6772 &mut self,
6773 cursor_anchor: Anchor,
6774 new_position: Option<Point>,
6775 cx: &mut ViewContext<Self>,
6776 ) {
6777 if let Some(nav_history) = self.nav_history.as_mut() {
6778 let buffer = self.buffer.read(cx).read(cx);
6779 let cursor_position = cursor_anchor.to_point(&buffer);
6780 let scroll_state = self.scroll_manager.anchor();
6781 let scroll_top_row = scroll_state.top_row(&buffer);
6782 drop(buffer);
6783
6784 if let Some(new_position) = new_position {
6785 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6786 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6787 return;
6788 }
6789 }
6790
6791 nav_history.push(
6792 Some(NavigationData {
6793 cursor_anchor,
6794 cursor_position,
6795 scroll_anchor: scroll_state,
6796 scroll_top_row,
6797 }),
6798 cx,
6799 );
6800 }
6801 }
6802
6803 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6804 let buffer = self.buffer.read(cx).snapshot(cx);
6805 let mut selection = self.selections.first::<usize>(cx);
6806 selection.set_head(buffer.len(), SelectionGoal::None);
6807 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6808 s.select(vec![selection]);
6809 });
6810 }
6811
6812 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6813 let end = self.buffer.read(cx).read(cx).len();
6814 self.change_selections(None, cx, |s| {
6815 s.select_ranges(vec![0..end]);
6816 });
6817 }
6818
6819 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6820 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6821 let mut selections = self.selections.all::<Point>(cx);
6822 let max_point = display_map.buffer_snapshot.max_point();
6823 for selection in &mut selections {
6824 let rows = selection.spanned_rows(true, &display_map);
6825 selection.start = Point::new(rows.start, 0);
6826 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6827 selection.reversed = false;
6828 }
6829 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6830 s.select(selections);
6831 });
6832 }
6833
6834 pub fn split_selection_into_lines(
6835 &mut self,
6836 _: &SplitSelectionIntoLines,
6837 cx: &mut ViewContext<Self>,
6838 ) {
6839 let mut to_unfold = Vec::new();
6840 let mut new_selection_ranges = Vec::new();
6841 {
6842 let selections = self.selections.all::<Point>(cx);
6843 let buffer = self.buffer.read(cx).read(cx);
6844 for selection in selections {
6845 for row in selection.start.row..selection.end.row {
6846 let cursor = Point::new(row, buffer.line_len(row));
6847 new_selection_ranges.push(cursor..cursor);
6848 }
6849 new_selection_ranges.push(selection.end..selection.end);
6850 to_unfold.push(selection.start..selection.end);
6851 }
6852 }
6853 self.unfold_ranges(to_unfold, true, true, cx);
6854 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6855 s.select_ranges(new_selection_ranges);
6856 });
6857 }
6858
6859 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6860 self.add_selection(true, cx);
6861 }
6862
6863 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6864 self.add_selection(false, cx);
6865 }
6866
6867 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6868 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6869 let mut selections = self.selections.all::<Point>(cx);
6870 let text_layout_details = self.text_layout_details(cx);
6871 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6872 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6873 let range = oldest_selection.display_range(&display_map).sorted();
6874
6875 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6876 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6877 let positions = start_x.min(end_x)..start_x.max(end_x);
6878
6879 selections.clear();
6880 let mut stack = Vec::new();
6881 for row in range.start.row()..=range.end.row() {
6882 if let Some(selection) = self.selections.build_columnar_selection(
6883 &display_map,
6884 row,
6885 &positions,
6886 oldest_selection.reversed,
6887 &text_layout_details,
6888 ) {
6889 stack.push(selection.id);
6890 selections.push(selection);
6891 }
6892 }
6893
6894 if above {
6895 stack.reverse();
6896 }
6897
6898 AddSelectionsState { above, stack }
6899 });
6900
6901 let last_added_selection = *state.stack.last().unwrap();
6902 let mut new_selections = Vec::new();
6903 if above == state.above {
6904 let end_row = if above {
6905 0
6906 } else {
6907 display_map.max_point().row()
6908 };
6909
6910 'outer: for selection in selections {
6911 if selection.id == last_added_selection {
6912 let range = selection.display_range(&display_map).sorted();
6913 debug_assert_eq!(range.start.row(), range.end.row());
6914 let mut row = range.start.row();
6915 let positions =
6916 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6917 px(start)..px(end)
6918 } else {
6919 let start_x =
6920 display_map.x_for_display_point(range.start, &text_layout_details);
6921 let end_x =
6922 display_map.x_for_display_point(range.end, &text_layout_details);
6923 start_x.min(end_x)..start_x.max(end_x)
6924 };
6925
6926 while row != end_row {
6927 if above {
6928 row -= 1;
6929 } else {
6930 row += 1;
6931 }
6932
6933 if let Some(new_selection) = self.selections.build_columnar_selection(
6934 &display_map,
6935 row,
6936 &positions,
6937 selection.reversed,
6938 &text_layout_details,
6939 ) {
6940 state.stack.push(new_selection.id);
6941 if above {
6942 new_selections.push(new_selection);
6943 new_selections.push(selection);
6944 } else {
6945 new_selections.push(selection);
6946 new_selections.push(new_selection);
6947 }
6948
6949 continue 'outer;
6950 }
6951 }
6952 }
6953
6954 new_selections.push(selection);
6955 }
6956 } else {
6957 new_selections = selections;
6958 new_selections.retain(|s| s.id != last_added_selection);
6959 state.stack.pop();
6960 }
6961
6962 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6963 s.select(new_selections);
6964 });
6965 if state.stack.len() > 1 {
6966 self.add_selections_state = Some(state);
6967 }
6968 }
6969
6970 pub fn select_next_match_internal(
6971 &mut self,
6972 display_map: &DisplaySnapshot,
6973 replace_newest: bool,
6974 autoscroll: Option<Autoscroll>,
6975 cx: &mut ViewContext<Self>,
6976 ) -> Result<()> {
6977 fn select_next_match_ranges(
6978 this: &mut Editor,
6979 range: Range<usize>,
6980 replace_newest: bool,
6981 auto_scroll: Option<Autoscroll>,
6982 cx: &mut ViewContext<Editor>,
6983 ) {
6984 this.unfold_ranges([range.clone()], false, true, cx);
6985 this.change_selections(auto_scroll, cx, |s| {
6986 if replace_newest {
6987 s.delete(s.newest_anchor().id);
6988 }
6989 s.insert_range(range.clone());
6990 });
6991 }
6992
6993 let buffer = &display_map.buffer_snapshot;
6994 let mut selections = self.selections.all::<usize>(cx);
6995 if let Some(mut select_next_state) = self.select_next_state.take() {
6996 let query = &select_next_state.query;
6997 if !select_next_state.done {
6998 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6999 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7000 let mut next_selected_range = None;
7001
7002 let bytes_after_last_selection =
7003 buffer.bytes_in_range(last_selection.end..buffer.len());
7004 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7005 let query_matches = query
7006 .stream_find_iter(bytes_after_last_selection)
7007 .map(|result| (last_selection.end, result))
7008 .chain(
7009 query
7010 .stream_find_iter(bytes_before_first_selection)
7011 .map(|result| (0, result)),
7012 );
7013
7014 for (start_offset, query_match) in query_matches {
7015 let query_match = query_match.unwrap(); // can only fail due to I/O
7016 let offset_range =
7017 start_offset + query_match.start()..start_offset + query_match.end();
7018 let display_range = offset_range.start.to_display_point(&display_map)
7019 ..offset_range.end.to_display_point(&display_map);
7020
7021 if !select_next_state.wordwise
7022 || (!movement::is_inside_word(&display_map, display_range.start)
7023 && !movement::is_inside_word(&display_map, display_range.end))
7024 {
7025 // TODO: This is n^2, because we might check all the selections
7026 if !selections
7027 .iter()
7028 .any(|selection| selection.range().overlaps(&offset_range))
7029 {
7030 next_selected_range = Some(offset_range);
7031 break;
7032 }
7033 }
7034 }
7035
7036 if let Some(next_selected_range) = next_selected_range {
7037 select_next_match_ranges(
7038 self,
7039 next_selected_range,
7040 replace_newest,
7041 autoscroll,
7042 cx,
7043 );
7044 } else {
7045 select_next_state.done = true;
7046 }
7047 }
7048
7049 self.select_next_state = Some(select_next_state);
7050 } else {
7051 let mut only_carets = true;
7052 let mut same_text_selected = true;
7053 let mut selected_text = None;
7054
7055 let mut selections_iter = selections.iter().peekable();
7056 while let Some(selection) = selections_iter.next() {
7057 if selection.start != selection.end {
7058 only_carets = false;
7059 }
7060
7061 if same_text_selected {
7062 if selected_text.is_none() {
7063 selected_text =
7064 Some(buffer.text_for_range(selection.range()).collect::<String>());
7065 }
7066
7067 if let Some(next_selection) = selections_iter.peek() {
7068 if next_selection.range().len() == selection.range().len() {
7069 let next_selected_text = buffer
7070 .text_for_range(next_selection.range())
7071 .collect::<String>();
7072 if Some(next_selected_text) != selected_text {
7073 same_text_selected = false;
7074 selected_text = None;
7075 }
7076 } else {
7077 same_text_selected = false;
7078 selected_text = None;
7079 }
7080 }
7081 }
7082 }
7083
7084 if only_carets {
7085 for selection in &mut selections {
7086 let word_range = movement::surrounding_word(
7087 &display_map,
7088 selection.start.to_display_point(&display_map),
7089 );
7090 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7091 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7092 selection.goal = SelectionGoal::None;
7093 selection.reversed = false;
7094 select_next_match_ranges(
7095 self,
7096 selection.start..selection.end,
7097 replace_newest,
7098 autoscroll,
7099 cx,
7100 );
7101 }
7102
7103 if selections.len() == 1 {
7104 let selection = selections
7105 .last()
7106 .expect("ensured that there's only one selection");
7107 let query = buffer
7108 .text_for_range(selection.start..selection.end)
7109 .collect::<String>();
7110 let is_empty = query.is_empty();
7111 let select_state = SelectNextState {
7112 query: AhoCorasick::new(&[query])?,
7113 wordwise: true,
7114 done: is_empty,
7115 };
7116 self.select_next_state = Some(select_state);
7117 } else {
7118 self.select_next_state = None;
7119 }
7120 } else if let Some(selected_text) = selected_text {
7121 self.select_next_state = Some(SelectNextState {
7122 query: AhoCorasick::new(&[selected_text])?,
7123 wordwise: false,
7124 done: false,
7125 });
7126 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7127 }
7128 }
7129 Ok(())
7130 }
7131
7132 pub fn select_all_matches(
7133 &mut self,
7134 _action: &SelectAllMatches,
7135 cx: &mut ViewContext<Self>,
7136 ) -> Result<()> {
7137 self.push_to_selection_history();
7138 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7139
7140 self.select_next_match_internal(&display_map, false, None, cx)?;
7141 let Some(select_next_state) = self.select_next_state.as_mut() else {
7142 return Ok(());
7143 };
7144 if select_next_state.done {
7145 return Ok(());
7146 }
7147
7148 let mut new_selections = self.selections.all::<usize>(cx);
7149
7150 let buffer = &display_map.buffer_snapshot;
7151 let query_matches = select_next_state
7152 .query
7153 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7154
7155 for query_match in query_matches {
7156 let query_match = query_match.unwrap(); // can only fail due to I/O
7157 let offset_range = query_match.start()..query_match.end();
7158 let display_range = offset_range.start.to_display_point(&display_map)
7159 ..offset_range.end.to_display_point(&display_map);
7160
7161 if !select_next_state.wordwise
7162 || (!movement::is_inside_word(&display_map, display_range.start)
7163 && !movement::is_inside_word(&display_map, display_range.end))
7164 {
7165 self.selections.change_with(cx, |selections| {
7166 new_selections.push(Selection {
7167 id: selections.new_selection_id(),
7168 start: offset_range.start,
7169 end: offset_range.end,
7170 reversed: false,
7171 goal: SelectionGoal::None,
7172 });
7173 });
7174 }
7175 }
7176
7177 new_selections.sort_by_key(|selection| selection.start);
7178 let mut ix = 0;
7179 while ix + 1 < new_selections.len() {
7180 let current_selection = &new_selections[ix];
7181 let next_selection = &new_selections[ix + 1];
7182 if current_selection.range().overlaps(&next_selection.range()) {
7183 if current_selection.id < next_selection.id {
7184 new_selections.remove(ix + 1);
7185 } else {
7186 new_selections.remove(ix);
7187 }
7188 } else {
7189 ix += 1;
7190 }
7191 }
7192
7193 select_next_state.done = true;
7194 self.unfold_ranges(
7195 new_selections.iter().map(|selection| selection.range()),
7196 false,
7197 false,
7198 cx,
7199 );
7200 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7201 selections.select(new_selections)
7202 });
7203
7204 Ok(())
7205 }
7206
7207 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7208 self.push_to_selection_history();
7209 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7210 self.select_next_match_internal(
7211 &display_map,
7212 action.replace_newest,
7213 Some(Autoscroll::newest()),
7214 cx,
7215 )?;
7216 Ok(())
7217 }
7218
7219 pub fn select_previous(
7220 &mut self,
7221 action: &SelectPrevious,
7222 cx: &mut ViewContext<Self>,
7223 ) -> Result<()> {
7224 self.push_to_selection_history();
7225 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7226 let buffer = &display_map.buffer_snapshot;
7227 let mut selections = self.selections.all::<usize>(cx);
7228 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7229 let query = &select_prev_state.query;
7230 if !select_prev_state.done {
7231 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7232 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7233 let mut next_selected_range = None;
7234 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7235 let bytes_before_last_selection =
7236 buffer.reversed_bytes_in_range(0..last_selection.start);
7237 let bytes_after_first_selection =
7238 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7239 let query_matches = query
7240 .stream_find_iter(bytes_before_last_selection)
7241 .map(|result| (last_selection.start, result))
7242 .chain(
7243 query
7244 .stream_find_iter(bytes_after_first_selection)
7245 .map(|result| (buffer.len(), result)),
7246 );
7247 for (end_offset, query_match) in query_matches {
7248 let query_match = query_match.unwrap(); // can only fail due to I/O
7249 let offset_range =
7250 end_offset - query_match.end()..end_offset - query_match.start();
7251 let display_range = offset_range.start.to_display_point(&display_map)
7252 ..offset_range.end.to_display_point(&display_map);
7253
7254 if !select_prev_state.wordwise
7255 || (!movement::is_inside_word(&display_map, display_range.start)
7256 && !movement::is_inside_word(&display_map, display_range.end))
7257 {
7258 next_selected_range = Some(offset_range);
7259 break;
7260 }
7261 }
7262
7263 if let Some(next_selected_range) = next_selected_range {
7264 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7265 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7266 if action.replace_newest {
7267 s.delete(s.newest_anchor().id);
7268 }
7269 s.insert_range(next_selected_range);
7270 });
7271 } else {
7272 select_prev_state.done = true;
7273 }
7274 }
7275
7276 self.select_prev_state = Some(select_prev_state);
7277 } else {
7278 let mut only_carets = true;
7279 let mut same_text_selected = true;
7280 let mut selected_text = None;
7281
7282 let mut selections_iter = selections.iter().peekable();
7283 while let Some(selection) = selections_iter.next() {
7284 if selection.start != selection.end {
7285 only_carets = false;
7286 }
7287
7288 if same_text_selected {
7289 if selected_text.is_none() {
7290 selected_text =
7291 Some(buffer.text_for_range(selection.range()).collect::<String>());
7292 }
7293
7294 if let Some(next_selection) = selections_iter.peek() {
7295 if next_selection.range().len() == selection.range().len() {
7296 let next_selected_text = buffer
7297 .text_for_range(next_selection.range())
7298 .collect::<String>();
7299 if Some(next_selected_text) != selected_text {
7300 same_text_selected = false;
7301 selected_text = None;
7302 }
7303 } else {
7304 same_text_selected = false;
7305 selected_text = None;
7306 }
7307 }
7308 }
7309 }
7310
7311 if only_carets {
7312 for selection in &mut selections {
7313 let word_range = movement::surrounding_word(
7314 &display_map,
7315 selection.start.to_display_point(&display_map),
7316 );
7317 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7318 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7319 selection.goal = SelectionGoal::None;
7320 selection.reversed = false;
7321 }
7322 if selections.len() == 1 {
7323 let selection = selections
7324 .last()
7325 .expect("ensured that there's only one selection");
7326 let query = buffer
7327 .text_for_range(selection.start..selection.end)
7328 .collect::<String>();
7329 let is_empty = query.is_empty();
7330 let select_state = SelectNextState {
7331 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7332 wordwise: true,
7333 done: is_empty,
7334 };
7335 self.select_prev_state = Some(select_state);
7336 } else {
7337 self.select_prev_state = None;
7338 }
7339
7340 self.unfold_ranges(
7341 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7342 false,
7343 true,
7344 cx,
7345 );
7346 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7347 s.select(selections);
7348 });
7349 } else if let Some(selected_text) = selected_text {
7350 self.select_prev_state = Some(SelectNextState {
7351 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7352 wordwise: false,
7353 done: false,
7354 });
7355 self.select_previous(action, cx)?;
7356 }
7357 }
7358 Ok(())
7359 }
7360
7361 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7362 let text_layout_details = &self.text_layout_details(cx);
7363 self.transact(cx, |this, cx| {
7364 let mut selections = this.selections.all::<Point>(cx);
7365 let mut edits = Vec::new();
7366 let mut selection_edit_ranges = Vec::new();
7367 let mut last_toggled_row = None;
7368 let snapshot = this.buffer.read(cx).read(cx);
7369 let empty_str: Arc<str> = "".into();
7370 let mut suffixes_inserted = Vec::new();
7371
7372 fn comment_prefix_range(
7373 snapshot: &MultiBufferSnapshot,
7374 row: u32,
7375 comment_prefix: &str,
7376 comment_prefix_whitespace: &str,
7377 ) -> Range<Point> {
7378 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7379
7380 let mut line_bytes = snapshot
7381 .bytes_in_range(start..snapshot.max_point())
7382 .flatten()
7383 .copied();
7384
7385 // If this line currently begins with the line comment prefix, then record
7386 // the range containing the prefix.
7387 if line_bytes
7388 .by_ref()
7389 .take(comment_prefix.len())
7390 .eq(comment_prefix.bytes())
7391 {
7392 // Include any whitespace that matches the comment prefix.
7393 let matching_whitespace_len = line_bytes
7394 .zip(comment_prefix_whitespace.bytes())
7395 .take_while(|(a, b)| a == b)
7396 .count() as u32;
7397 let end = Point::new(
7398 start.row,
7399 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7400 );
7401 start..end
7402 } else {
7403 start..start
7404 }
7405 }
7406
7407 fn comment_suffix_range(
7408 snapshot: &MultiBufferSnapshot,
7409 row: u32,
7410 comment_suffix: &str,
7411 comment_suffix_has_leading_space: bool,
7412 ) -> Range<Point> {
7413 let end = Point::new(row, snapshot.line_len(row));
7414 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7415
7416 let mut line_end_bytes = snapshot
7417 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7418 .flatten()
7419 .copied();
7420
7421 let leading_space_len = if suffix_start_column > 0
7422 && line_end_bytes.next() == Some(b' ')
7423 && comment_suffix_has_leading_space
7424 {
7425 1
7426 } else {
7427 0
7428 };
7429
7430 // If this line currently begins with the line comment prefix, then record
7431 // the range containing the prefix.
7432 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7433 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7434 start..end
7435 } else {
7436 end..end
7437 }
7438 }
7439
7440 // TODO: Handle selections that cross excerpts
7441 for selection in &mut selections {
7442 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7443 let language = if let Some(language) =
7444 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7445 {
7446 language
7447 } else {
7448 continue;
7449 };
7450
7451 selection_edit_ranges.clear();
7452
7453 // If multiple selections contain a given row, avoid processing that
7454 // row more than once.
7455 let mut start_row = selection.start.row;
7456 if last_toggled_row == Some(start_row) {
7457 start_row += 1;
7458 }
7459 let end_row =
7460 if selection.end.row > selection.start.row && selection.end.column == 0 {
7461 selection.end.row - 1
7462 } else {
7463 selection.end.row
7464 };
7465 last_toggled_row = Some(end_row);
7466
7467 if start_row > end_row {
7468 continue;
7469 }
7470
7471 // If the language has line comments, toggle those.
7472 let full_comment_prefixes = language.line_comment_prefixes();
7473 if !full_comment_prefixes.is_empty() {
7474 let first_prefix = full_comment_prefixes
7475 .first()
7476 .expect("prefixes is non-empty");
7477 let prefix_trimmed_lengths = full_comment_prefixes
7478 .iter()
7479 .map(|p| p.trim_end_matches(' ').len())
7480 .collect::<SmallVec<[usize; 4]>>();
7481
7482 let mut all_selection_lines_are_comments = true;
7483
7484 for row in start_row..=end_row {
7485 if start_row < end_row && snapshot.is_line_blank(row) {
7486 continue;
7487 }
7488
7489 let prefix_range = full_comment_prefixes
7490 .iter()
7491 .zip(prefix_trimmed_lengths.iter().copied())
7492 .map(|(prefix, trimmed_prefix_len)| {
7493 comment_prefix_range(
7494 snapshot.deref(),
7495 row,
7496 &prefix[..trimmed_prefix_len],
7497 &prefix[trimmed_prefix_len..],
7498 )
7499 })
7500 .max_by_key(|range| range.end.column - range.start.column)
7501 .expect("prefixes is non-empty");
7502
7503 if prefix_range.is_empty() {
7504 all_selection_lines_are_comments = false;
7505 }
7506
7507 selection_edit_ranges.push(prefix_range);
7508 }
7509
7510 if all_selection_lines_are_comments {
7511 edits.extend(
7512 selection_edit_ranges
7513 .iter()
7514 .cloned()
7515 .map(|range| (range, empty_str.clone())),
7516 );
7517 } else {
7518 let min_column = selection_edit_ranges
7519 .iter()
7520 .map(|range| range.start.column)
7521 .min()
7522 .unwrap_or(0);
7523 edits.extend(selection_edit_ranges.iter().map(|range| {
7524 let position = Point::new(range.start.row, min_column);
7525 (position..position, first_prefix.clone())
7526 }));
7527 }
7528 } else if let Some((full_comment_prefix, comment_suffix)) =
7529 language.block_comment_delimiters()
7530 {
7531 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7532 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7533 let prefix_range = comment_prefix_range(
7534 snapshot.deref(),
7535 start_row,
7536 comment_prefix,
7537 comment_prefix_whitespace,
7538 );
7539 let suffix_range = comment_suffix_range(
7540 snapshot.deref(),
7541 end_row,
7542 comment_suffix.trim_start_matches(' '),
7543 comment_suffix.starts_with(' '),
7544 );
7545
7546 if prefix_range.is_empty() || suffix_range.is_empty() {
7547 edits.push((
7548 prefix_range.start..prefix_range.start,
7549 full_comment_prefix.clone(),
7550 ));
7551 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7552 suffixes_inserted.push((end_row, comment_suffix.len()));
7553 } else {
7554 edits.push((prefix_range, empty_str.clone()));
7555 edits.push((suffix_range, empty_str.clone()));
7556 }
7557 } else {
7558 continue;
7559 }
7560 }
7561
7562 drop(snapshot);
7563 this.buffer.update(cx, |buffer, cx| {
7564 buffer.edit(edits, None, cx);
7565 });
7566
7567 // Adjust selections so that they end before any comment suffixes that
7568 // were inserted.
7569 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7570 let mut selections = this.selections.all::<Point>(cx);
7571 let snapshot = this.buffer.read(cx).read(cx);
7572 for selection in &mut selections {
7573 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7574 match row.cmp(&selection.end.row) {
7575 Ordering::Less => {
7576 suffixes_inserted.next();
7577 continue;
7578 }
7579 Ordering::Greater => break,
7580 Ordering::Equal => {
7581 if selection.end.column == snapshot.line_len(row) {
7582 if selection.is_empty() {
7583 selection.start.column -= suffix_len as u32;
7584 }
7585 selection.end.column -= suffix_len as u32;
7586 }
7587 break;
7588 }
7589 }
7590 }
7591 }
7592
7593 drop(snapshot);
7594 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7595
7596 let selections = this.selections.all::<Point>(cx);
7597 let selections_on_single_row = selections.windows(2).all(|selections| {
7598 selections[0].start.row == selections[1].start.row
7599 && selections[0].end.row == selections[1].end.row
7600 && selections[0].start.row == selections[0].end.row
7601 });
7602 let selections_selecting = selections
7603 .iter()
7604 .any(|selection| selection.start != selection.end);
7605 let advance_downwards = action.advance_downwards
7606 && selections_on_single_row
7607 && !selections_selecting
7608 && this.mode != EditorMode::SingleLine;
7609
7610 if advance_downwards {
7611 let snapshot = this.buffer.read(cx).snapshot(cx);
7612
7613 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7614 s.move_cursors_with(|display_snapshot, display_point, _| {
7615 let mut point = display_point.to_point(display_snapshot);
7616 point.row += 1;
7617 point = snapshot.clip_point(point, Bias::Left);
7618 let display_point = point.to_display_point(display_snapshot);
7619 let goal = SelectionGoal::HorizontalPosition(
7620 display_snapshot
7621 .x_for_display_point(display_point, &text_layout_details)
7622 .into(),
7623 );
7624 (display_point, goal)
7625 })
7626 });
7627 }
7628 });
7629 }
7630
7631 pub fn select_larger_syntax_node(
7632 &mut self,
7633 _: &SelectLargerSyntaxNode,
7634 cx: &mut ViewContext<Self>,
7635 ) {
7636 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7637 let buffer = self.buffer.read(cx).snapshot(cx);
7638 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7639
7640 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7641 let mut selected_larger_node = false;
7642 let new_selections = old_selections
7643 .iter()
7644 .map(|selection| {
7645 let old_range = selection.start..selection.end;
7646 let mut new_range = old_range.clone();
7647 while let Some(containing_range) =
7648 buffer.range_for_syntax_ancestor(new_range.clone())
7649 {
7650 new_range = containing_range;
7651 if !display_map.intersects_fold(new_range.start)
7652 && !display_map.intersects_fold(new_range.end)
7653 {
7654 break;
7655 }
7656 }
7657
7658 selected_larger_node |= new_range != old_range;
7659 Selection {
7660 id: selection.id,
7661 start: new_range.start,
7662 end: new_range.end,
7663 goal: SelectionGoal::None,
7664 reversed: selection.reversed,
7665 }
7666 })
7667 .collect::<Vec<_>>();
7668
7669 if selected_larger_node {
7670 stack.push(old_selections);
7671 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7672 s.select(new_selections);
7673 });
7674 }
7675 self.select_larger_syntax_node_stack = stack;
7676 }
7677
7678 pub fn select_smaller_syntax_node(
7679 &mut self,
7680 _: &SelectSmallerSyntaxNode,
7681 cx: &mut ViewContext<Self>,
7682 ) {
7683 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7684 if let Some(selections) = stack.pop() {
7685 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7686 s.select(selections.to_vec());
7687 });
7688 }
7689 self.select_larger_syntax_node_stack = stack;
7690 }
7691
7692 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7693 let project = self.project.clone();
7694 cx.spawn(|this, mut cx| async move {
7695 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7696 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7697 }) else {
7698 return;
7699 };
7700
7701 let Some(project) = project else {
7702 return;
7703 };
7704 if project
7705 .update(&mut cx, |this, _| this.is_remote())
7706 .unwrap_or(true)
7707 {
7708 // Do not display any test indicators in remote projects.
7709 return;
7710 }
7711 let new_rows =
7712 cx.background_executor()
7713 .spawn({
7714 let snapshot = display_snapshot.clone();
7715 async move {
7716 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7717 }
7718 })
7719 .await;
7720 let rows = Self::refresh_runnable_display_rows(
7721 project,
7722 display_snapshot,
7723 new_rows,
7724 cx.clone(),
7725 );
7726
7727 this.update(&mut cx, |this, _| {
7728 this.clear_tasks();
7729 for (row, tasks) in rows {
7730 this.insert_tasks(row, tasks);
7731 }
7732 })
7733 .ok();
7734 })
7735 }
7736 fn fetch_runnable_ranges(
7737 snapshot: &DisplaySnapshot,
7738 range: Range<Anchor>,
7739 ) -> Vec<(Range<usize>, Runnable)> {
7740 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7741 }
7742 fn refresh_runnable_display_rows(
7743 project: Model<Project>,
7744 snapshot: DisplaySnapshot,
7745 runnable_ranges: Vec<(Range<usize>, Runnable)>,
7746 mut cx: AsyncWindowContext,
7747 ) -> Vec<(u32, RunnableTasks)> {
7748 runnable_ranges
7749 .into_iter()
7750 .filter_map(|(multi_buffer_range, mut runnable)| {
7751 let (tasks, _) = cx
7752 .update(|cx| Self::resolve_runnable(project.clone(), &mut runnable, cx))
7753 .ok()?;
7754 if tasks.is_empty() {
7755 return None;
7756 }
7757 let point = multi_buffer_range.start.to_display_point(&snapshot);
7758 Some((
7759 point.row(),
7760 RunnableTasks {
7761 templates: tasks,
7762 column: point.column(),
7763 },
7764 ))
7765 })
7766 .collect()
7767 }
7768
7769 fn resolve_runnable(
7770 project: Model<Project>,
7771 runnable: &mut Runnable,
7772 cx: &WindowContext<'_>,
7773 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7774 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7775 let worktree_id = project
7776 .buffer_for_id(runnable.buffer)
7777 .and_then(|buffer| buffer.read(cx).file())
7778 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7779
7780 (project.task_inventory().clone(), worktree_id)
7781 });
7782
7783 let inventory = inventory.read(cx);
7784 let tags = mem::take(&mut runnable.tags);
7785 let mut tags: Vec<_> = tags
7786 .into_iter()
7787 .flat_map(|tag| {
7788 let tag = tag.0.clone();
7789 inventory
7790 .list_tasks(Some(runnable.language.clone()), worktree_id)
7791 .into_iter()
7792 .filter(move |(_, template)| {
7793 template.tags.iter().any(|source_tag| source_tag == &tag)
7794 })
7795 })
7796 .sorted_by_key(|(kind, _)| kind.to_owned())
7797 .collect();
7798 if let Some((leading_tag_source, _)) = tags.first() {
7799 // Strongest source wins; if we have worktree tag binding, prefer that to
7800 // global and language bindings;
7801 // if we have a global binding, prefer that to language binding.
7802 let first_mismatch = tags
7803 .iter()
7804 .position(|(tag_source, _)| tag_source != leading_tag_source);
7805 if let Some(index) = first_mismatch {
7806 tags.truncate(index);
7807 }
7808 }
7809
7810 (tags, worktree_id)
7811 }
7812
7813 pub fn move_to_enclosing_bracket(
7814 &mut self,
7815 _: &MoveToEnclosingBracket,
7816 cx: &mut ViewContext<Self>,
7817 ) {
7818 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7819 s.move_offsets_with(|snapshot, selection| {
7820 let Some(enclosing_bracket_ranges) =
7821 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7822 else {
7823 return;
7824 };
7825
7826 let mut best_length = usize::MAX;
7827 let mut best_inside = false;
7828 let mut best_in_bracket_range = false;
7829 let mut best_destination = None;
7830 for (open, close) in enclosing_bracket_ranges {
7831 let close = close.to_inclusive();
7832 let length = close.end() - open.start;
7833 let inside = selection.start >= open.end && selection.end <= *close.start();
7834 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7835 || close.contains(&selection.head());
7836
7837 // If best is next to a bracket and current isn't, skip
7838 if !in_bracket_range && best_in_bracket_range {
7839 continue;
7840 }
7841
7842 // Prefer smaller lengths unless best is inside and current isn't
7843 if length > best_length && (best_inside || !inside) {
7844 continue;
7845 }
7846
7847 best_length = length;
7848 best_inside = inside;
7849 best_in_bracket_range = in_bracket_range;
7850 best_destination = Some(
7851 if close.contains(&selection.start) && close.contains(&selection.end) {
7852 if inside {
7853 open.end
7854 } else {
7855 open.start
7856 }
7857 } else {
7858 if inside {
7859 *close.start()
7860 } else {
7861 *close.end()
7862 }
7863 },
7864 );
7865 }
7866
7867 if let Some(destination) = best_destination {
7868 selection.collapse_to(destination, SelectionGoal::None);
7869 }
7870 })
7871 });
7872 }
7873
7874 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7875 self.end_selection(cx);
7876 self.selection_history.mode = SelectionHistoryMode::Undoing;
7877 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7878 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7879 self.select_next_state = entry.select_next_state;
7880 self.select_prev_state = entry.select_prev_state;
7881 self.add_selections_state = entry.add_selections_state;
7882 self.request_autoscroll(Autoscroll::newest(), cx);
7883 }
7884 self.selection_history.mode = SelectionHistoryMode::Normal;
7885 }
7886
7887 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7888 self.end_selection(cx);
7889 self.selection_history.mode = SelectionHistoryMode::Redoing;
7890 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7891 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7892 self.select_next_state = entry.select_next_state;
7893 self.select_prev_state = entry.select_prev_state;
7894 self.add_selections_state = entry.add_selections_state;
7895 self.request_autoscroll(Autoscroll::newest(), cx);
7896 }
7897 self.selection_history.mode = SelectionHistoryMode::Normal;
7898 }
7899
7900 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7901 let selections = self.selections.disjoint_anchors();
7902
7903 let lines = if action.lines == 0 { 3 } else { action.lines };
7904
7905 self.buffer.update(cx, |buffer, cx| {
7906 buffer.expand_excerpts(
7907 selections
7908 .into_iter()
7909 .map(|selection| selection.head().excerpt_id)
7910 .dedup(),
7911 lines,
7912 cx,
7913 )
7914 })
7915 }
7916
7917 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7918 self.buffer
7919 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7920 }
7921
7922 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7923 self.go_to_diagnostic_impl(Direction::Next, cx)
7924 }
7925
7926 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7927 self.go_to_diagnostic_impl(Direction::Prev, cx)
7928 }
7929
7930 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7931 let buffer = self.buffer.read(cx).snapshot(cx);
7932 let selection = self.selections.newest::<usize>(cx);
7933
7934 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7935 if direction == Direction::Next {
7936 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7937 let (group_id, jump_to) = popover.activation_info();
7938 if self.activate_diagnostics(group_id, cx) {
7939 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7940 let mut new_selection = s.newest_anchor().clone();
7941 new_selection.collapse_to(jump_to, SelectionGoal::None);
7942 s.select_anchors(vec![new_selection.clone()]);
7943 });
7944 }
7945 return;
7946 }
7947 }
7948
7949 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7950 active_diagnostics
7951 .primary_range
7952 .to_offset(&buffer)
7953 .to_inclusive()
7954 });
7955 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7956 if active_primary_range.contains(&selection.head()) {
7957 *active_primary_range.end()
7958 } else {
7959 selection.head()
7960 }
7961 } else {
7962 selection.head()
7963 };
7964 let snapshot = self.snapshot(cx);
7965 loop {
7966 let mut diagnostics = if direction == Direction::Prev {
7967 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7968 } else {
7969 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7970 }
7971 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
7972 let group = diagnostics.find_map(|entry| {
7973 if entry.diagnostic.is_primary
7974 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7975 && !entry.range.is_empty()
7976 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7977 && !entry.range.contains(&search_start)
7978 {
7979 Some((entry.range, entry.diagnostic.group_id))
7980 } else {
7981 None
7982 }
7983 });
7984
7985 if let Some((primary_range, group_id)) = group {
7986 if self.activate_diagnostics(group_id, cx) {
7987 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7988 s.select(vec![Selection {
7989 id: selection.id,
7990 start: primary_range.start,
7991 end: primary_range.start,
7992 reversed: false,
7993 goal: SelectionGoal::None,
7994 }]);
7995 });
7996 }
7997 break;
7998 } else {
7999 // Cycle around to the start of the buffer, potentially moving back to the start of
8000 // the currently active diagnostic.
8001 active_primary_range.take();
8002 if direction == Direction::Prev {
8003 if search_start == buffer.len() {
8004 break;
8005 } else {
8006 search_start = buffer.len();
8007 }
8008 } else if search_start == 0 {
8009 break;
8010 } else {
8011 search_start = 0;
8012 }
8013 }
8014 }
8015 }
8016
8017 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8018 let snapshot = self
8019 .display_map
8020 .update(cx, |display_map, cx| display_map.snapshot(cx));
8021 let selection = self.selections.newest::<Point>(cx);
8022
8023 if !self.seek_in_direction(
8024 &snapshot,
8025 selection.head(),
8026 false,
8027 snapshot
8028 .buffer_snapshot
8029 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
8030 cx,
8031 ) {
8032 let wrapped_point = Point::zero();
8033 self.seek_in_direction(
8034 &snapshot,
8035 wrapped_point,
8036 true,
8037 snapshot
8038 .buffer_snapshot
8039 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
8040 cx,
8041 );
8042 }
8043 }
8044
8045 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8046 let snapshot = self
8047 .display_map
8048 .update(cx, |display_map, cx| display_map.snapshot(cx));
8049 let selection = self.selections.newest::<Point>(cx);
8050
8051 if !self.seek_in_direction(
8052 &snapshot,
8053 selection.head(),
8054 false,
8055 snapshot
8056 .buffer_snapshot
8057 .git_diff_hunks_in_range_rev(0..selection.head().row),
8058 cx,
8059 ) {
8060 let wrapped_point = snapshot.buffer_snapshot.max_point();
8061 self.seek_in_direction(
8062 &snapshot,
8063 wrapped_point,
8064 true,
8065 snapshot
8066 .buffer_snapshot
8067 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
8068 cx,
8069 );
8070 }
8071 }
8072
8073 fn seek_in_direction(
8074 &mut self,
8075 snapshot: &DisplaySnapshot,
8076 initial_point: Point,
8077 is_wrapped: bool,
8078 hunks: impl Iterator<Item = DiffHunk<u32>>,
8079 cx: &mut ViewContext<Editor>,
8080 ) -> bool {
8081 let display_point = initial_point.to_display_point(snapshot);
8082 let mut hunks = hunks
8083 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8084 .filter(|hunk| {
8085 if is_wrapped {
8086 true
8087 } else {
8088 !hunk.contains_display_row(display_point.row())
8089 }
8090 })
8091 .dedup();
8092
8093 if let Some(hunk) = hunks.next() {
8094 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8095 let row = hunk.start_display_row();
8096 let point = DisplayPoint::new(row, 0);
8097 s.select_display_ranges([point..point]);
8098 });
8099
8100 true
8101 } else {
8102 false
8103 }
8104 }
8105
8106 pub fn go_to_definition(
8107 &mut self,
8108 _: &GoToDefinition,
8109 cx: &mut ViewContext<Self>,
8110 ) -> Task<Result<bool>> {
8111 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8112 }
8113
8114 pub fn go_to_implementation(
8115 &mut self,
8116 _: &GoToImplementation,
8117 cx: &mut ViewContext<Self>,
8118 ) -> Task<Result<bool>> {
8119 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8120 }
8121
8122 pub fn go_to_implementation_split(
8123 &mut self,
8124 _: &GoToImplementationSplit,
8125 cx: &mut ViewContext<Self>,
8126 ) -> Task<Result<bool>> {
8127 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8128 }
8129
8130 pub fn go_to_type_definition(
8131 &mut self,
8132 _: &GoToTypeDefinition,
8133 cx: &mut ViewContext<Self>,
8134 ) -> Task<Result<bool>> {
8135 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8136 }
8137
8138 pub fn go_to_definition_split(
8139 &mut self,
8140 _: &GoToDefinitionSplit,
8141 cx: &mut ViewContext<Self>,
8142 ) -> Task<Result<bool>> {
8143 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8144 }
8145
8146 pub fn go_to_type_definition_split(
8147 &mut self,
8148 _: &GoToTypeDefinitionSplit,
8149 cx: &mut ViewContext<Self>,
8150 ) -> Task<Result<bool>> {
8151 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8152 }
8153
8154 fn go_to_definition_of_kind(
8155 &mut self,
8156 kind: GotoDefinitionKind,
8157 split: bool,
8158 cx: &mut ViewContext<Self>,
8159 ) -> Task<Result<bool>> {
8160 let Some(workspace) = self.workspace() else {
8161 return Task::ready(Ok(false));
8162 };
8163 let buffer = self.buffer.read(cx);
8164 let head = self.selections.newest::<usize>(cx).head();
8165 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8166 text_anchor
8167 } else {
8168 return Task::ready(Ok(false));
8169 };
8170
8171 let project = workspace.read(cx).project().clone();
8172 let definitions = project.update(cx, |project, cx| match kind {
8173 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8174 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8175 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8176 });
8177
8178 cx.spawn(|editor, mut cx| async move {
8179 let definitions = definitions.await?;
8180 let navigated = editor
8181 .update(&mut cx, |editor, cx| {
8182 editor.navigate_to_hover_links(
8183 Some(kind),
8184 definitions
8185 .into_iter()
8186 .filter(|location| {
8187 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8188 })
8189 .map(HoverLink::Text)
8190 .collect::<Vec<_>>(),
8191 split,
8192 cx,
8193 )
8194 })?
8195 .await?;
8196 anyhow::Ok(navigated)
8197 })
8198 }
8199
8200 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8201 let position = self.selections.newest_anchor().head();
8202 let Some((buffer, buffer_position)) =
8203 self.buffer.read(cx).text_anchor_for_position(position, cx)
8204 else {
8205 return;
8206 };
8207
8208 cx.spawn(|editor, mut cx| async move {
8209 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8210 editor.update(&mut cx, |_, cx| {
8211 cx.open_url(&url);
8212 })
8213 } else {
8214 Ok(())
8215 }
8216 })
8217 .detach();
8218 }
8219
8220 pub(crate) fn navigate_to_hover_links(
8221 &mut self,
8222 kind: Option<GotoDefinitionKind>,
8223 mut definitions: Vec<HoverLink>,
8224 split: bool,
8225 cx: &mut ViewContext<Editor>,
8226 ) -> Task<Result<bool>> {
8227 // If there is one definition, just open it directly
8228 if definitions.len() == 1 {
8229 let definition = definitions.pop().unwrap();
8230 let target_task = match definition {
8231 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8232 HoverLink::InlayHint(lsp_location, server_id) => {
8233 self.compute_target_location(lsp_location, server_id, cx)
8234 }
8235 HoverLink::Url(url) => {
8236 cx.open_url(&url);
8237 Task::ready(Ok(None))
8238 }
8239 };
8240 cx.spawn(|editor, mut cx| async move {
8241 let target = target_task.await.context("target resolution task")?;
8242 if let Some(target) = target {
8243 editor.update(&mut cx, |editor, cx| {
8244 let Some(workspace) = editor.workspace() else {
8245 return false;
8246 };
8247 let pane = workspace.read(cx).active_pane().clone();
8248
8249 let range = target.range.to_offset(target.buffer.read(cx));
8250 let range = editor.range_for_match(&range);
8251 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8252 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8253 s.select_ranges([range]);
8254 });
8255 } else {
8256 cx.window_context().defer(move |cx| {
8257 let target_editor: View<Self> =
8258 workspace.update(cx, |workspace, cx| {
8259 let pane = if split {
8260 workspace.adjacent_pane(cx)
8261 } else {
8262 workspace.active_pane().clone()
8263 };
8264
8265 workspace.open_project_item(pane, target.buffer.clone(), cx)
8266 });
8267 target_editor.update(cx, |target_editor, cx| {
8268 // When selecting a definition in a different buffer, disable the nav history
8269 // to avoid creating a history entry at the previous cursor location.
8270 pane.update(cx, |pane, _| pane.disable_history());
8271 target_editor.change_selections(
8272 Some(Autoscroll::focused()),
8273 cx,
8274 |s| {
8275 s.select_ranges([range]);
8276 },
8277 );
8278 pane.update(cx, |pane, _| pane.enable_history());
8279 });
8280 });
8281 }
8282 true
8283 })
8284 } else {
8285 Ok(false)
8286 }
8287 })
8288 } else if !definitions.is_empty() {
8289 let replica_id = self.replica_id(cx);
8290 cx.spawn(|editor, mut cx| async move {
8291 let (title, location_tasks, workspace) = editor
8292 .update(&mut cx, |editor, cx| {
8293 let tab_kind = match kind {
8294 Some(GotoDefinitionKind::Implementation) => "Implementations",
8295 _ => "Definitions",
8296 };
8297 let title = definitions
8298 .iter()
8299 .find_map(|definition| match definition {
8300 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8301 let buffer = origin.buffer.read(cx);
8302 format!(
8303 "{} for {}",
8304 tab_kind,
8305 buffer
8306 .text_for_range(origin.range.clone())
8307 .collect::<String>()
8308 )
8309 }),
8310 HoverLink::InlayHint(_, _) => None,
8311 HoverLink::Url(_) => None,
8312 })
8313 .unwrap_or(tab_kind.to_string());
8314 let location_tasks = definitions
8315 .into_iter()
8316 .map(|definition| match definition {
8317 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8318 HoverLink::InlayHint(lsp_location, server_id) => {
8319 editor.compute_target_location(lsp_location, server_id, cx)
8320 }
8321 HoverLink::Url(_) => Task::ready(Ok(None)),
8322 })
8323 .collect::<Vec<_>>();
8324 (title, location_tasks, editor.workspace().clone())
8325 })
8326 .context("location tasks preparation")?;
8327
8328 let locations = futures::future::join_all(location_tasks)
8329 .await
8330 .into_iter()
8331 .filter_map(|location| location.transpose())
8332 .collect::<Result<_>>()
8333 .context("location tasks")?;
8334
8335 let Some(workspace) = workspace else {
8336 return Ok(false);
8337 };
8338 let opened = workspace
8339 .update(&mut cx, |workspace, cx| {
8340 Self::open_locations_in_multibuffer(
8341 workspace, locations, replica_id, title, split, cx,
8342 )
8343 })
8344 .ok();
8345
8346 anyhow::Ok(opened.is_some())
8347 })
8348 } else {
8349 Task::ready(Ok(false))
8350 }
8351 }
8352
8353 fn compute_target_location(
8354 &self,
8355 lsp_location: lsp::Location,
8356 server_id: LanguageServerId,
8357 cx: &mut ViewContext<Editor>,
8358 ) -> Task<anyhow::Result<Option<Location>>> {
8359 let Some(project) = self.project.clone() else {
8360 return Task::Ready(Some(Ok(None)));
8361 };
8362
8363 cx.spawn(move |editor, mut cx| async move {
8364 let location_task = editor.update(&mut cx, |editor, cx| {
8365 project.update(cx, |project, cx| {
8366 let language_server_name =
8367 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8368 project
8369 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8370 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8371 });
8372 language_server_name.map(|language_server_name| {
8373 project.open_local_buffer_via_lsp(
8374 lsp_location.uri.clone(),
8375 server_id,
8376 language_server_name,
8377 cx,
8378 )
8379 })
8380 })
8381 })?;
8382 let location = match location_task {
8383 Some(task) => Some({
8384 let target_buffer_handle = task.await.context("open local buffer")?;
8385 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8386 let target_start = target_buffer
8387 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8388 let target_end = target_buffer
8389 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8390 target_buffer.anchor_after(target_start)
8391 ..target_buffer.anchor_before(target_end)
8392 })?;
8393 Location {
8394 buffer: target_buffer_handle,
8395 range,
8396 }
8397 }),
8398 None => None,
8399 };
8400 Ok(location)
8401 })
8402 }
8403
8404 pub fn find_all_references(
8405 &mut self,
8406 _: &FindAllReferences,
8407 cx: &mut ViewContext<Self>,
8408 ) -> Option<Task<Result<()>>> {
8409 let multi_buffer = self.buffer.read(cx);
8410 let selection = self.selections.newest::<usize>(cx);
8411 let head = selection.head();
8412
8413 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8414 let head_anchor = multi_buffer_snapshot.anchor_at(
8415 head,
8416 if head < selection.tail() {
8417 Bias::Right
8418 } else {
8419 Bias::Left
8420 },
8421 );
8422
8423 match self
8424 .find_all_references_task_sources
8425 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8426 {
8427 Ok(_) => {
8428 log::info!(
8429 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8430 );
8431 return None;
8432 }
8433 Err(i) => {
8434 self.find_all_references_task_sources.insert(i, head_anchor);
8435 }
8436 }
8437
8438 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8439 let replica_id = self.replica_id(cx);
8440 let workspace = self.workspace()?;
8441 let project = workspace.read(cx).project().clone();
8442 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8443 Some(cx.spawn(|editor, mut cx| async move {
8444 let _cleanup = defer({
8445 let mut cx = cx.clone();
8446 move || {
8447 let _ = editor.update(&mut cx, |editor, _| {
8448 if let Ok(i) =
8449 editor
8450 .find_all_references_task_sources
8451 .binary_search_by(|anchor| {
8452 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8453 })
8454 {
8455 editor.find_all_references_task_sources.remove(i);
8456 }
8457 });
8458 }
8459 });
8460
8461 let locations = references.await?;
8462 if locations.is_empty() {
8463 return anyhow::Ok(());
8464 }
8465
8466 workspace.update(&mut cx, |workspace, cx| {
8467 let title = locations
8468 .first()
8469 .as_ref()
8470 .map(|location| {
8471 let buffer = location.buffer.read(cx);
8472 format!(
8473 "References to `{}`",
8474 buffer
8475 .text_for_range(location.range.clone())
8476 .collect::<String>()
8477 )
8478 })
8479 .unwrap();
8480 Self::open_locations_in_multibuffer(
8481 workspace, locations, replica_id, title, false, cx,
8482 );
8483 })
8484 }))
8485 }
8486
8487 /// Opens a multibuffer with the given project locations in it
8488 pub fn open_locations_in_multibuffer(
8489 workspace: &mut Workspace,
8490 mut locations: Vec<Location>,
8491 replica_id: ReplicaId,
8492 title: String,
8493 split: bool,
8494 cx: &mut ViewContext<Workspace>,
8495 ) {
8496 // If there are multiple definitions, open them in a multibuffer
8497 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8498 let mut locations = locations.into_iter().peekable();
8499 let mut ranges_to_highlight = Vec::new();
8500 let capability = workspace.project().read(cx).capability();
8501
8502 let excerpt_buffer = cx.new_model(|cx| {
8503 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8504 while let Some(location) = locations.next() {
8505 let buffer = location.buffer.read(cx);
8506 let mut ranges_for_buffer = Vec::new();
8507 let range = location.range.to_offset(buffer);
8508 ranges_for_buffer.push(range.clone());
8509
8510 while let Some(next_location) = locations.peek() {
8511 if next_location.buffer == location.buffer {
8512 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8513 locations.next();
8514 } else {
8515 break;
8516 }
8517 }
8518
8519 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8520 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8521 location.buffer.clone(),
8522 ranges_for_buffer,
8523 DEFAULT_MULTIBUFFER_CONTEXT,
8524 cx,
8525 ))
8526 }
8527
8528 multibuffer.with_title(title)
8529 });
8530
8531 let editor = cx.new_view(|cx| {
8532 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8533 });
8534 editor.update(cx, |editor, cx| {
8535 editor.highlight_background::<Self>(
8536 &ranges_to_highlight,
8537 |theme| theme.editor_highlighted_line_background,
8538 cx,
8539 );
8540 });
8541
8542 let item = Box::new(editor);
8543 let item_id = item.item_id();
8544
8545 if split {
8546 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8547 } else {
8548 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8549 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8550 pane.close_current_preview_item(cx)
8551 } else {
8552 None
8553 }
8554 });
8555 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8556 }
8557 workspace.active_pane().update(cx, |pane, cx| {
8558 pane.set_preview_item_id(Some(item_id), cx);
8559 });
8560 }
8561
8562 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8563 use language::ToOffset as _;
8564
8565 let project = self.project.clone()?;
8566 let selection = self.selections.newest_anchor().clone();
8567 let (cursor_buffer, cursor_buffer_position) = self
8568 .buffer
8569 .read(cx)
8570 .text_anchor_for_position(selection.head(), cx)?;
8571 let (tail_buffer, cursor_buffer_position_end) = self
8572 .buffer
8573 .read(cx)
8574 .text_anchor_for_position(selection.tail(), cx)?;
8575 if tail_buffer != cursor_buffer {
8576 return None;
8577 }
8578
8579 let snapshot = cursor_buffer.read(cx).snapshot();
8580 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8581 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8582 let prepare_rename = project.update(cx, |project, cx| {
8583 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8584 });
8585 drop(snapshot);
8586
8587 Some(cx.spawn(|this, mut cx| async move {
8588 let rename_range = if let Some(range) = prepare_rename.await? {
8589 Some(range)
8590 } else {
8591 this.update(&mut cx, |this, cx| {
8592 let buffer = this.buffer.read(cx).snapshot(cx);
8593 let mut buffer_highlights = this
8594 .document_highlights_for_position(selection.head(), &buffer)
8595 .filter(|highlight| {
8596 highlight.start.excerpt_id == selection.head().excerpt_id
8597 && highlight.end.excerpt_id == selection.head().excerpt_id
8598 });
8599 buffer_highlights
8600 .next()
8601 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8602 })?
8603 };
8604 if let Some(rename_range) = rename_range {
8605 this.update(&mut cx, |this, cx| {
8606 let snapshot = cursor_buffer.read(cx).snapshot();
8607 let rename_buffer_range = rename_range.to_offset(&snapshot);
8608 let cursor_offset_in_rename_range =
8609 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8610 let cursor_offset_in_rename_range_end =
8611 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8612
8613 this.take_rename(false, cx);
8614 let buffer = this.buffer.read(cx).read(cx);
8615 let cursor_offset = selection.head().to_offset(&buffer);
8616 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8617 let rename_end = rename_start + rename_buffer_range.len();
8618 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8619 let mut old_highlight_id = None;
8620 let old_name: Arc<str> = buffer
8621 .chunks(rename_start..rename_end, true)
8622 .map(|chunk| {
8623 if old_highlight_id.is_none() {
8624 old_highlight_id = chunk.syntax_highlight_id;
8625 }
8626 chunk.text
8627 })
8628 .collect::<String>()
8629 .into();
8630
8631 drop(buffer);
8632
8633 // Position the selection in the rename editor so that it matches the current selection.
8634 this.show_local_selections = false;
8635 let rename_editor = cx.new_view(|cx| {
8636 let mut editor = Editor::single_line(cx);
8637 editor.buffer.update(cx, |buffer, cx| {
8638 buffer.edit([(0..0, old_name.clone())], None, cx)
8639 });
8640 let rename_selection_range = match cursor_offset_in_rename_range
8641 .cmp(&cursor_offset_in_rename_range_end)
8642 {
8643 Ordering::Equal => {
8644 editor.select_all(&SelectAll, cx);
8645 return editor;
8646 }
8647 Ordering::Less => {
8648 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8649 }
8650 Ordering::Greater => {
8651 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8652 }
8653 };
8654 if rename_selection_range.end > old_name.len() {
8655 editor.select_all(&SelectAll, cx);
8656 } else {
8657 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8658 s.select_ranges([rename_selection_range]);
8659 });
8660 }
8661 editor
8662 });
8663
8664 let write_highlights =
8665 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8666 let read_highlights =
8667 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8668 let ranges = write_highlights
8669 .iter()
8670 .flat_map(|(_, ranges)| ranges.iter())
8671 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8672 .cloned()
8673 .collect();
8674
8675 this.highlight_text::<Rename>(
8676 ranges,
8677 HighlightStyle {
8678 fade_out: Some(0.6),
8679 ..Default::default()
8680 },
8681 cx,
8682 );
8683 let rename_focus_handle = rename_editor.focus_handle(cx);
8684 cx.focus(&rename_focus_handle);
8685 let block_id = this.insert_blocks(
8686 [BlockProperties {
8687 style: BlockStyle::Flex,
8688 position: range.start,
8689 height: 1,
8690 render: Box::new({
8691 let rename_editor = rename_editor.clone();
8692 move |cx: &mut BlockContext| {
8693 let mut text_style = cx.editor_style.text.clone();
8694 if let Some(highlight_style) = old_highlight_id
8695 .and_then(|h| h.style(&cx.editor_style.syntax))
8696 {
8697 text_style = text_style.highlight(highlight_style);
8698 }
8699 div()
8700 .pl(cx.anchor_x)
8701 .child(EditorElement::new(
8702 &rename_editor,
8703 EditorStyle {
8704 background: cx.theme().system().transparent,
8705 local_player: cx.editor_style.local_player,
8706 text: text_style,
8707 scrollbar_width: cx.editor_style.scrollbar_width,
8708 syntax: cx.editor_style.syntax.clone(),
8709 status: cx.editor_style.status.clone(),
8710 inlay_hints_style: HighlightStyle {
8711 color: Some(cx.theme().status().hint),
8712 font_weight: Some(FontWeight::BOLD),
8713 ..HighlightStyle::default()
8714 },
8715 suggestions_style: HighlightStyle {
8716 color: Some(cx.theme().status().predictive),
8717 ..HighlightStyle::default()
8718 },
8719 },
8720 ))
8721 .into_any_element()
8722 }
8723 }),
8724 disposition: BlockDisposition::Below,
8725 }],
8726 Some(Autoscroll::fit()),
8727 cx,
8728 )[0];
8729 this.pending_rename = Some(RenameState {
8730 range,
8731 old_name,
8732 editor: rename_editor,
8733 block_id,
8734 });
8735 })?;
8736 }
8737
8738 Ok(())
8739 }))
8740 }
8741
8742 pub fn confirm_rename(
8743 &mut self,
8744 _: &ConfirmRename,
8745 cx: &mut ViewContext<Self>,
8746 ) -> Option<Task<Result<()>>> {
8747 let rename = self.take_rename(false, cx)?;
8748 let workspace = self.workspace()?;
8749 let (start_buffer, start) = self
8750 .buffer
8751 .read(cx)
8752 .text_anchor_for_position(rename.range.start, cx)?;
8753 let (end_buffer, end) = self
8754 .buffer
8755 .read(cx)
8756 .text_anchor_for_position(rename.range.end, cx)?;
8757 if start_buffer != end_buffer {
8758 return None;
8759 }
8760
8761 let buffer = start_buffer;
8762 let range = start..end;
8763 let old_name = rename.old_name;
8764 let new_name = rename.editor.read(cx).text(cx);
8765
8766 let rename = workspace
8767 .read(cx)
8768 .project()
8769 .clone()
8770 .update(cx, |project, cx| {
8771 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8772 });
8773 let workspace = workspace.downgrade();
8774
8775 Some(cx.spawn(|editor, mut cx| async move {
8776 let project_transaction = rename.await?;
8777 Self::open_project_transaction(
8778 &editor,
8779 workspace,
8780 project_transaction,
8781 format!("Rename: {} → {}", old_name, new_name),
8782 cx.clone(),
8783 )
8784 .await?;
8785
8786 editor.update(&mut cx, |editor, cx| {
8787 editor.refresh_document_highlights(cx);
8788 })?;
8789 Ok(())
8790 }))
8791 }
8792
8793 fn take_rename(
8794 &mut self,
8795 moving_cursor: bool,
8796 cx: &mut ViewContext<Self>,
8797 ) -> Option<RenameState> {
8798 let rename = self.pending_rename.take()?;
8799 if rename.editor.focus_handle(cx).is_focused(cx) {
8800 cx.focus(&self.focus_handle);
8801 }
8802
8803 self.remove_blocks(
8804 [rename.block_id].into_iter().collect(),
8805 Some(Autoscroll::fit()),
8806 cx,
8807 );
8808 self.clear_highlights::<Rename>(cx);
8809 self.show_local_selections = true;
8810
8811 if moving_cursor {
8812 let rename_editor = rename.editor.read(cx);
8813 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8814
8815 // Update the selection to match the position of the selection inside
8816 // the rename editor.
8817 let snapshot = self.buffer.read(cx).read(cx);
8818 let rename_range = rename.range.to_offset(&snapshot);
8819 let cursor_in_editor = snapshot
8820 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8821 .min(rename_range.end);
8822 drop(snapshot);
8823
8824 self.change_selections(None, cx, |s| {
8825 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8826 });
8827 } else {
8828 self.refresh_document_highlights(cx);
8829 }
8830
8831 Some(rename)
8832 }
8833
8834 pub fn pending_rename(&self) -> Option<&RenameState> {
8835 self.pending_rename.as_ref()
8836 }
8837
8838 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8839 let project = match &self.project {
8840 Some(project) => project.clone(),
8841 None => return None,
8842 };
8843
8844 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8845 }
8846
8847 fn perform_format(
8848 &mut self,
8849 project: Model<Project>,
8850 trigger: FormatTrigger,
8851 cx: &mut ViewContext<Self>,
8852 ) -> Task<Result<()>> {
8853 let buffer = self.buffer().clone();
8854 let mut buffers = buffer.read(cx).all_buffers();
8855 if trigger == FormatTrigger::Save {
8856 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8857 }
8858
8859 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8860 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8861
8862 cx.spawn(|_, mut cx| async move {
8863 let transaction = futures::select_biased! {
8864 () = timeout => {
8865 log::warn!("timed out waiting for formatting");
8866 None
8867 }
8868 transaction = format.log_err().fuse() => transaction,
8869 };
8870
8871 buffer
8872 .update(&mut cx, |buffer, cx| {
8873 if let Some(transaction) = transaction {
8874 if !buffer.is_singleton() {
8875 buffer.push_transaction(&transaction.0, cx);
8876 }
8877 }
8878
8879 cx.notify();
8880 })
8881 .ok();
8882
8883 Ok(())
8884 })
8885 }
8886
8887 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8888 if let Some(project) = self.project.clone() {
8889 self.buffer.update(cx, |multi_buffer, cx| {
8890 project.update(cx, |project, cx| {
8891 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8892 });
8893 })
8894 }
8895 }
8896
8897 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8898 cx.show_character_palette();
8899 }
8900
8901 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8902 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8903 let buffer = self.buffer.read(cx).snapshot(cx);
8904 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8905 let is_valid = buffer
8906 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8907 .any(|entry| {
8908 entry.diagnostic.is_primary
8909 && !entry.range.is_empty()
8910 && entry.range.start == primary_range_start
8911 && entry.diagnostic.message == active_diagnostics.primary_message
8912 });
8913
8914 if is_valid != active_diagnostics.is_valid {
8915 active_diagnostics.is_valid = is_valid;
8916 let mut new_styles = HashMap::default();
8917 for (block_id, diagnostic) in &active_diagnostics.blocks {
8918 new_styles.insert(
8919 *block_id,
8920 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8921 );
8922 }
8923 self.display_map
8924 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8925 }
8926 }
8927 }
8928
8929 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8930 self.dismiss_diagnostics(cx);
8931 let snapshot = self.snapshot(cx);
8932 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8933 let buffer = self.buffer.read(cx).snapshot(cx);
8934
8935 let mut primary_range = None;
8936 let mut primary_message = None;
8937 let mut group_end = Point::zero();
8938 let diagnostic_group = buffer
8939 .diagnostic_group::<Point>(group_id)
8940 .filter_map(|entry| {
8941 if snapshot.is_line_folded(entry.range.start.row)
8942 && (entry.range.start.row == entry.range.end.row
8943 || snapshot.is_line_folded(entry.range.end.row))
8944 {
8945 return None;
8946 }
8947 if entry.range.end > group_end {
8948 group_end = entry.range.end;
8949 }
8950 if entry.diagnostic.is_primary {
8951 primary_range = Some(entry.range.clone());
8952 primary_message = Some(entry.diagnostic.message.clone());
8953 }
8954 Some(entry)
8955 })
8956 .collect::<Vec<_>>();
8957 let primary_range = primary_range?;
8958 let primary_message = primary_message?;
8959 let primary_range =
8960 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8961
8962 let blocks = display_map
8963 .insert_blocks(
8964 diagnostic_group.iter().map(|entry| {
8965 let diagnostic = entry.diagnostic.clone();
8966 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8967 BlockProperties {
8968 style: BlockStyle::Fixed,
8969 position: buffer.anchor_after(entry.range.start),
8970 height: message_height,
8971 render: diagnostic_block_renderer(diagnostic, true),
8972 disposition: BlockDisposition::Below,
8973 }
8974 }),
8975 cx,
8976 )
8977 .into_iter()
8978 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8979 .collect();
8980
8981 Some(ActiveDiagnosticGroup {
8982 primary_range,
8983 primary_message,
8984 blocks,
8985 is_valid: true,
8986 })
8987 });
8988 self.active_diagnostics.is_some()
8989 }
8990
8991 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8992 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8993 self.display_map.update(cx, |display_map, cx| {
8994 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8995 });
8996 cx.notify();
8997 }
8998 }
8999
9000 pub fn set_selections_from_remote(
9001 &mut self,
9002 selections: Vec<Selection<Anchor>>,
9003 pending_selection: Option<Selection<Anchor>>,
9004 cx: &mut ViewContext<Self>,
9005 ) {
9006 let old_cursor_position = self.selections.newest_anchor().head();
9007 self.selections.change_with(cx, |s| {
9008 s.select_anchors(selections);
9009 if let Some(pending_selection) = pending_selection {
9010 s.set_pending(pending_selection, SelectMode::Character);
9011 } else {
9012 s.clear_pending();
9013 }
9014 });
9015 self.selections_did_change(false, &old_cursor_position, cx);
9016 }
9017
9018 fn push_to_selection_history(&mut self) {
9019 self.selection_history.push(SelectionHistoryEntry {
9020 selections: self.selections.disjoint_anchors(),
9021 select_next_state: self.select_next_state.clone(),
9022 select_prev_state: self.select_prev_state.clone(),
9023 add_selections_state: self.add_selections_state.clone(),
9024 });
9025 }
9026
9027 pub fn transact(
9028 &mut self,
9029 cx: &mut ViewContext<Self>,
9030 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9031 ) -> Option<TransactionId> {
9032 self.start_transaction_at(Instant::now(), cx);
9033 update(self, cx);
9034 self.end_transaction_at(Instant::now(), cx)
9035 }
9036
9037 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9038 self.end_selection(cx);
9039 if let Some(tx_id) = self
9040 .buffer
9041 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9042 {
9043 self.selection_history
9044 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9045 cx.emit(EditorEvent::TransactionBegun {
9046 transaction_id: tx_id,
9047 })
9048 }
9049 }
9050
9051 fn end_transaction_at(
9052 &mut self,
9053 now: Instant,
9054 cx: &mut ViewContext<Self>,
9055 ) -> Option<TransactionId> {
9056 if let Some(tx_id) = self
9057 .buffer
9058 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9059 {
9060 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9061 *end_selections = Some(self.selections.disjoint_anchors());
9062 } else {
9063 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9064 }
9065
9066 cx.emit(EditorEvent::Edited);
9067 Some(tx_id)
9068 } else {
9069 None
9070 }
9071 }
9072
9073 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9074 let mut fold_ranges = Vec::new();
9075
9076 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9077
9078 let selections = self.selections.all_adjusted(cx);
9079 for selection in selections {
9080 let range = selection.range().sorted();
9081 let buffer_start_row = range.start.row;
9082
9083 for row in (0..=range.end.row).rev() {
9084 let fold_range = display_map.foldable_range(row);
9085
9086 if let Some(fold_range) = fold_range {
9087 if fold_range.end.row >= buffer_start_row {
9088 fold_ranges.push(fold_range);
9089 if row <= range.start.row {
9090 break;
9091 }
9092 }
9093 }
9094 }
9095 }
9096
9097 self.fold_ranges(fold_ranges, true, cx);
9098 }
9099
9100 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9101 let buffer_row = fold_at.buffer_row;
9102 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9103
9104 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9105 let autoscroll = self
9106 .selections
9107 .all::<Point>(cx)
9108 .iter()
9109 .any(|selection| fold_range.overlaps(&selection.range()));
9110
9111 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9112 }
9113 }
9114
9115 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9116 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9117 let buffer = &display_map.buffer_snapshot;
9118 let selections = self.selections.all::<Point>(cx);
9119 let ranges = selections
9120 .iter()
9121 .map(|s| {
9122 let range = s.display_range(&display_map).sorted();
9123 let mut start = range.start.to_point(&display_map);
9124 let mut end = range.end.to_point(&display_map);
9125 start.column = 0;
9126 end.column = buffer.line_len(end.row);
9127 start..end
9128 })
9129 .collect::<Vec<_>>();
9130
9131 self.unfold_ranges(ranges, true, true, cx);
9132 }
9133
9134 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9135 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9136
9137 let intersection_range = Point::new(unfold_at.buffer_row, 0)
9138 ..Point::new(
9139 unfold_at.buffer_row,
9140 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9141 );
9142
9143 let autoscroll = self
9144 .selections
9145 .all::<Point>(cx)
9146 .iter()
9147 .any(|selection| selection.range().overlaps(&intersection_range));
9148
9149 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9150 }
9151
9152 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9153 let selections = self.selections.all::<Point>(cx);
9154 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9155 let line_mode = self.selections.line_mode;
9156 let ranges = selections.into_iter().map(|s| {
9157 if line_mode {
9158 let start = Point::new(s.start.row, 0);
9159 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
9160 start..end
9161 } else {
9162 s.start..s.end
9163 }
9164 });
9165 self.fold_ranges(ranges, true, cx);
9166 }
9167
9168 pub fn fold_ranges<T: ToOffset + Clone>(
9169 &mut self,
9170 ranges: impl IntoIterator<Item = Range<T>>,
9171 auto_scroll: bool,
9172 cx: &mut ViewContext<Self>,
9173 ) {
9174 let mut fold_ranges = Vec::new();
9175 let mut buffers_affected = HashMap::default();
9176 let multi_buffer = self.buffer().read(cx);
9177 for range in ranges {
9178 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9179 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9180 };
9181 fold_ranges.push(range);
9182 }
9183
9184 let mut ranges = fold_ranges.into_iter().peekable();
9185 if ranges.peek().is_some() {
9186 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9187
9188 if auto_scroll {
9189 self.request_autoscroll(Autoscroll::fit(), cx);
9190 }
9191
9192 for buffer in buffers_affected.into_values() {
9193 self.sync_expanded_diff_hunks(buffer, cx);
9194 }
9195
9196 cx.notify();
9197
9198 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9199 // Clear diagnostics block when folding a range that contains it.
9200 let snapshot = self.snapshot(cx);
9201 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9202 drop(snapshot);
9203 self.active_diagnostics = Some(active_diagnostics);
9204 self.dismiss_diagnostics(cx);
9205 } else {
9206 self.active_diagnostics = Some(active_diagnostics);
9207 }
9208 }
9209 }
9210 }
9211
9212 pub fn unfold_ranges<T: ToOffset + Clone>(
9213 &mut self,
9214 ranges: impl IntoIterator<Item = Range<T>>,
9215 inclusive: bool,
9216 auto_scroll: bool,
9217 cx: &mut ViewContext<Self>,
9218 ) {
9219 let mut unfold_ranges = Vec::new();
9220 let mut buffers_affected = HashMap::default();
9221 let multi_buffer = self.buffer().read(cx);
9222 for range in ranges {
9223 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9224 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9225 };
9226 unfold_ranges.push(range);
9227 }
9228
9229 let mut ranges = unfold_ranges.into_iter().peekable();
9230 if ranges.peek().is_some() {
9231 self.display_map
9232 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9233 if auto_scroll {
9234 self.request_autoscroll(Autoscroll::fit(), cx);
9235 }
9236
9237 for buffer in buffers_affected.into_values() {
9238 self.sync_expanded_diff_hunks(buffer, cx);
9239 }
9240
9241 cx.notify();
9242 }
9243 }
9244
9245 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9246 if hovered != self.gutter_hovered {
9247 self.gutter_hovered = hovered;
9248 cx.notify();
9249 }
9250 }
9251
9252 pub fn insert_blocks(
9253 &mut self,
9254 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9255 autoscroll: Option<Autoscroll>,
9256 cx: &mut ViewContext<Self>,
9257 ) -> Vec<BlockId> {
9258 let blocks = self
9259 .display_map
9260 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9261 if let Some(autoscroll) = autoscroll {
9262 self.request_autoscroll(autoscroll, cx);
9263 }
9264 blocks
9265 }
9266
9267 pub fn replace_blocks(
9268 &mut self,
9269 blocks: HashMap<BlockId, RenderBlock>,
9270 autoscroll: Option<Autoscroll>,
9271 cx: &mut ViewContext<Self>,
9272 ) {
9273 self.display_map
9274 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9275 if let Some(autoscroll) = autoscroll {
9276 self.request_autoscroll(autoscroll, cx);
9277 }
9278 }
9279
9280 pub fn remove_blocks(
9281 &mut self,
9282 block_ids: HashSet<BlockId>,
9283 autoscroll: Option<Autoscroll>,
9284 cx: &mut ViewContext<Self>,
9285 ) {
9286 self.display_map.update(cx, |display_map, cx| {
9287 display_map.remove_blocks(block_ids, cx)
9288 });
9289 if let Some(autoscroll) = autoscroll {
9290 self.request_autoscroll(autoscroll, cx);
9291 }
9292 }
9293
9294 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
9295 self.display_map
9296 .update(cx, |map, cx| map.snapshot(cx))
9297 .longest_row()
9298 }
9299
9300 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9301 self.display_map
9302 .update(cx, |map, cx| map.snapshot(cx))
9303 .max_point()
9304 }
9305
9306 pub fn text(&self, cx: &AppContext) -> String {
9307 self.buffer.read(cx).read(cx).text()
9308 }
9309
9310 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9311 let text = self.text(cx);
9312 let text = text.trim();
9313
9314 if text.is_empty() {
9315 return None;
9316 }
9317
9318 Some(text.to_string())
9319 }
9320
9321 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9322 self.transact(cx, |this, cx| {
9323 this.buffer
9324 .read(cx)
9325 .as_singleton()
9326 .expect("you can only call set_text on editors for singleton buffers")
9327 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9328 });
9329 }
9330
9331 pub fn display_text(&self, cx: &mut AppContext) -> String {
9332 self.display_map
9333 .update(cx, |map, cx| map.snapshot(cx))
9334 .text()
9335 }
9336
9337 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9338 let mut wrap_guides = smallvec::smallvec![];
9339
9340 if self.show_wrap_guides == Some(false) {
9341 return wrap_guides;
9342 }
9343
9344 let settings = self.buffer.read(cx).settings_at(0, cx);
9345 if settings.show_wrap_guides {
9346 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9347 wrap_guides.push((soft_wrap as usize, true));
9348 }
9349 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9350 }
9351
9352 wrap_guides
9353 }
9354
9355 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9356 let settings = self.buffer.read(cx).settings_at(0, cx);
9357 let mode = self
9358 .soft_wrap_mode_override
9359 .unwrap_or_else(|| settings.soft_wrap);
9360 match mode {
9361 language_settings::SoftWrap::None => SoftWrap::None,
9362 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9363 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9364 language_settings::SoftWrap::PreferredLineLength => {
9365 SoftWrap::Column(settings.preferred_line_length)
9366 }
9367 }
9368 }
9369
9370 pub fn set_soft_wrap_mode(
9371 &mut self,
9372 mode: language_settings::SoftWrap,
9373 cx: &mut ViewContext<Self>,
9374 ) {
9375 self.soft_wrap_mode_override = Some(mode);
9376 cx.notify();
9377 }
9378
9379 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9380 let rem_size = cx.rem_size();
9381 self.display_map.update(cx, |map, cx| {
9382 map.set_font(
9383 style.text.font(),
9384 style.text.font_size.to_pixels(rem_size),
9385 cx,
9386 )
9387 });
9388 self.style = Some(style);
9389 }
9390
9391 pub fn style(&self) -> Option<&EditorStyle> {
9392 self.style.as_ref()
9393 }
9394
9395 // Called by the element. This method is not designed to be called outside of the editor
9396 // element's layout code because it does not notify when rewrapping is computed synchronously.
9397 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9398 self.display_map
9399 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9400 }
9401
9402 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9403 if self.soft_wrap_mode_override.is_some() {
9404 self.soft_wrap_mode_override.take();
9405 } else {
9406 let soft_wrap = match self.soft_wrap_mode(cx) {
9407 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9408 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9409 language_settings::SoftWrap::PreferLine
9410 }
9411 };
9412 self.soft_wrap_mode_override = Some(soft_wrap);
9413 }
9414 cx.notify();
9415 }
9416
9417 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9418 let mut editor_settings = EditorSettings::get_global(cx).clone();
9419 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9420 EditorSettings::override_global(editor_settings, cx);
9421 }
9422
9423 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9424 self.show_gutter = show_gutter;
9425 cx.notify();
9426 }
9427
9428 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9429 self.show_wrap_guides = Some(show_gutter);
9430 cx.notify();
9431 }
9432
9433 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9434 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9435 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9436 cx.reveal_path(&file.abs_path(cx));
9437 }
9438 }
9439 }
9440
9441 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9442 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9443 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9444 if let Some(path) = file.abs_path(cx).to_str() {
9445 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9446 }
9447 }
9448 }
9449 }
9450
9451 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9452 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9453 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9454 if let Some(path) = file.path().to_str() {
9455 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9456 }
9457 }
9458 }
9459 }
9460
9461 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9462 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9463
9464 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9465 self.start_git_blame(true, cx);
9466 }
9467
9468 cx.notify();
9469 }
9470
9471 pub fn toggle_git_blame_inline(
9472 &mut self,
9473 _: &ToggleGitBlameInline,
9474 cx: &mut ViewContext<Self>,
9475 ) {
9476 self.toggle_git_blame_inline_internal(true, cx);
9477 cx.notify();
9478 }
9479
9480 pub fn git_blame_inline_enabled(&self) -> bool {
9481 self.git_blame_inline_enabled
9482 }
9483
9484 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9485 if let Some(project) = self.project.as_ref() {
9486 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9487 return;
9488 };
9489
9490 if buffer.read(cx).file().is_none() {
9491 return;
9492 }
9493
9494 let focused = self.focus_handle(cx).contains_focused(cx);
9495
9496 let project = project.clone();
9497 let blame =
9498 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9499 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9500 self.blame = Some(blame);
9501 }
9502 }
9503
9504 fn toggle_git_blame_inline_internal(
9505 &mut self,
9506 user_triggered: bool,
9507 cx: &mut ViewContext<Self>,
9508 ) {
9509 if self.git_blame_inline_enabled {
9510 self.git_blame_inline_enabled = false;
9511 self.show_git_blame_inline = false;
9512 self.show_git_blame_inline_delay_task.take();
9513 } else {
9514 self.git_blame_inline_enabled = true;
9515 self.start_git_blame_inline(user_triggered, cx);
9516 }
9517
9518 cx.notify();
9519 }
9520
9521 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9522 self.start_git_blame(user_triggered, cx);
9523
9524 if ProjectSettings::get_global(cx)
9525 .git
9526 .inline_blame_delay()
9527 .is_some()
9528 {
9529 self.start_inline_blame_timer(cx);
9530 } else {
9531 self.show_git_blame_inline = true
9532 }
9533 }
9534
9535 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9536 self.blame.as_ref()
9537 }
9538
9539 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9540 self.show_git_blame_gutter && self.has_blame_entries(cx)
9541 }
9542
9543 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9544 self.show_git_blame_inline
9545 && self.focus_handle.is_focused(cx)
9546 && !self.newest_selection_head_on_empty_line(cx)
9547 && self.has_blame_entries(cx)
9548 }
9549
9550 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9551 self.blame()
9552 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9553 }
9554
9555 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9556 let cursor_anchor = self.selections.newest_anchor().head();
9557
9558 let snapshot = self.buffer.read(cx).snapshot(cx);
9559 let buffer_row = cursor_anchor.to_point(&snapshot).row;
9560
9561 snapshot.line_len(buffer_row) == 0
9562 }
9563
9564 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9565 let (path, repo) = maybe!({
9566 let project_handle = self.project.as_ref()?.clone();
9567 let project = project_handle.read(cx);
9568 let buffer = self.buffer().read(cx).as_singleton()?;
9569 let path = buffer
9570 .read(cx)
9571 .file()?
9572 .as_local()?
9573 .path()
9574 .to_str()?
9575 .to_string();
9576 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9577 Some((path, repo))
9578 })
9579 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9580
9581 const REMOTE_NAME: &str = "origin";
9582 let origin_url = repo
9583 .lock()
9584 .remote_url(REMOTE_NAME)
9585 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9586 let sha = repo
9587 .lock()
9588 .head_sha()
9589 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9590 let selections = self.selections.all::<Point>(cx);
9591 let selection = selections.iter().peekable().next();
9592
9593 let (provider, remote) =
9594 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9595 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9596
9597 Ok(provider.build_permalink(
9598 remote,
9599 BuildPermalinkParams {
9600 sha: &sha,
9601 path: &path,
9602 selection: selection.map(|selection| {
9603 let range = selection.range();
9604 let start = range.start.row;
9605 let end = range.end.row;
9606 start..end
9607 }),
9608 },
9609 ))
9610 }
9611
9612 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9613 let permalink = self.get_permalink_to_line(cx);
9614
9615 match permalink {
9616 Ok(permalink) => {
9617 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9618 }
9619 Err(err) => {
9620 let message = format!("Failed to copy permalink: {err}");
9621
9622 Err::<(), anyhow::Error>(err).log_err();
9623
9624 if let Some(workspace) = self.workspace() {
9625 workspace.update(cx, |workspace, cx| {
9626 struct CopyPermalinkToLine;
9627
9628 workspace.show_toast(
9629 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9630 cx,
9631 )
9632 })
9633 }
9634 }
9635 }
9636 }
9637
9638 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9639 let permalink = self.get_permalink_to_line(cx);
9640
9641 match permalink {
9642 Ok(permalink) => {
9643 cx.open_url(permalink.as_ref());
9644 }
9645 Err(err) => {
9646 let message = format!("Failed to open permalink: {err}");
9647
9648 Err::<(), anyhow::Error>(err).log_err();
9649
9650 if let Some(workspace) = self.workspace() {
9651 workspace.update(cx, |workspace, cx| {
9652 struct OpenPermalinkToLine;
9653
9654 workspace.show_toast(
9655 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9656 cx,
9657 )
9658 })
9659 }
9660 }
9661 }
9662 }
9663
9664 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9665 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9666 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9667 pub fn highlight_rows<T: 'static>(
9668 &mut self,
9669 rows: Range<Anchor>,
9670 color: Option<Hsla>,
9671 cx: &mut ViewContext<Self>,
9672 ) {
9673 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9674 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9675 hash_map::Entry::Occupied(o) => {
9676 let row_highlights = o.into_mut();
9677 let existing_highlight_index =
9678 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9679 highlight_range
9680 .start
9681 .cmp(&rows.start, &multi_buffer_snapshot)
9682 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
9683 });
9684 match color {
9685 Some(color) => {
9686 let insert_index = match existing_highlight_index {
9687 Ok(i) => i,
9688 Err(i) => i,
9689 };
9690 row_highlights.insert(
9691 insert_index,
9692 (post_inc(&mut self.highlight_order), rows, color),
9693 );
9694 }
9695 None => {
9696 if let Ok(i) = existing_highlight_index {
9697 row_highlights.remove(i);
9698 }
9699 }
9700 }
9701 }
9702 hash_map::Entry::Vacant(v) => {
9703 if let Some(color) = color {
9704 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9705 }
9706 }
9707 }
9708 }
9709
9710 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9711 pub fn clear_row_highlights<T: 'static>(&mut self) {
9712 self.highlighted_rows.remove(&TypeId::of::<T>());
9713 }
9714
9715 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9716 pub fn highlighted_rows<T: 'static>(
9717 &self,
9718 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9719 Some(
9720 self.highlighted_rows
9721 .get(&TypeId::of::<T>())?
9722 .iter()
9723 .map(|(_, range, color)| (range, color)),
9724 )
9725 }
9726
9727 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9728 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9729 /// Allows to ignore certain kinds of highlights.
9730 pub fn highlighted_display_rows(
9731 &mut self,
9732 exclude_highlights: HashSet<TypeId>,
9733 cx: &mut WindowContext,
9734 ) -> BTreeMap<u32, Hsla> {
9735 let snapshot = self.snapshot(cx);
9736 let mut used_highlight_orders = HashMap::default();
9737 self.highlighted_rows
9738 .iter()
9739 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9740 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9741 .fold(
9742 BTreeMap::<u32, Hsla>::new(),
9743 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9744 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9745 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9746 for row in start_row..=end_row {
9747 let used_index =
9748 used_highlight_orders.entry(row).or_insert(*highlight_order);
9749 if highlight_order >= used_index {
9750 *used_index = *highlight_order;
9751 unique_rows.insert(row, *hsla);
9752 }
9753 }
9754 unique_rows
9755 },
9756 )
9757 }
9758
9759 pub fn set_search_within_ranges(
9760 &mut self,
9761 ranges: &[Range<Anchor>],
9762 cx: &mut ViewContext<Self>,
9763 ) {
9764 self.highlight_background::<SearchWithinRange>(
9765 ranges,
9766 |colors| colors.editor_document_highlight_read_background,
9767 cx,
9768 )
9769 }
9770
9771 pub fn highlight_background<T: 'static>(
9772 &mut self,
9773 ranges: &[Range<Anchor>],
9774 color_fetcher: fn(&ThemeColors) -> Hsla,
9775 cx: &mut ViewContext<Self>,
9776 ) {
9777 let snapshot = self.snapshot(cx);
9778 // this is to try and catch a panic sooner
9779 for range in ranges {
9780 snapshot
9781 .buffer_snapshot
9782 .summary_for_anchor::<usize>(&range.start);
9783 snapshot
9784 .buffer_snapshot
9785 .summary_for_anchor::<usize>(&range.end);
9786 }
9787
9788 self.background_highlights
9789 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9790 self.scrollbar_marker_state.dirty = true;
9791 cx.notify();
9792 }
9793
9794 pub fn clear_background_highlights<T: 'static>(
9795 &mut self,
9796 cx: &mut ViewContext<Self>,
9797 ) -> Option<BackgroundHighlight> {
9798 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9799 if !text_highlights.1.is_empty() {
9800 self.scrollbar_marker_state.dirty = true;
9801 cx.notify();
9802 }
9803 Some(text_highlights)
9804 }
9805
9806 #[cfg(feature = "test-support")]
9807 pub fn all_text_background_highlights(
9808 &mut self,
9809 cx: &mut ViewContext<Self>,
9810 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9811 let snapshot = self.snapshot(cx);
9812 let buffer = &snapshot.buffer_snapshot;
9813 let start = buffer.anchor_before(0);
9814 let end = buffer.anchor_after(buffer.len());
9815 let theme = cx.theme().colors();
9816 self.background_highlights_in_range(start..end, &snapshot, theme)
9817 }
9818
9819 fn document_highlights_for_position<'a>(
9820 &'a self,
9821 position: Anchor,
9822 buffer: &'a MultiBufferSnapshot,
9823 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9824 let read_highlights = self
9825 .background_highlights
9826 .get(&TypeId::of::<DocumentHighlightRead>())
9827 .map(|h| &h.1);
9828 let write_highlights = self
9829 .background_highlights
9830 .get(&TypeId::of::<DocumentHighlightWrite>())
9831 .map(|h| &h.1);
9832 let left_position = position.bias_left(buffer);
9833 let right_position = position.bias_right(buffer);
9834 read_highlights
9835 .into_iter()
9836 .chain(write_highlights)
9837 .flat_map(move |ranges| {
9838 let start_ix = match ranges.binary_search_by(|probe| {
9839 let cmp = probe.end.cmp(&left_position, buffer);
9840 if cmp.is_ge() {
9841 Ordering::Greater
9842 } else {
9843 Ordering::Less
9844 }
9845 }) {
9846 Ok(i) | Err(i) => i,
9847 };
9848
9849 ranges[start_ix..]
9850 .iter()
9851 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9852 })
9853 }
9854
9855 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9856 self.background_highlights
9857 .get(&TypeId::of::<T>())
9858 .map_or(false, |(_, highlights)| !highlights.is_empty())
9859 }
9860
9861 pub fn background_highlights_in_range(
9862 &self,
9863 search_range: Range<Anchor>,
9864 display_snapshot: &DisplaySnapshot,
9865 theme: &ThemeColors,
9866 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9867 let mut results = Vec::new();
9868 for (color_fetcher, ranges) in self.background_highlights.values() {
9869 let color = color_fetcher(theme);
9870 let start_ix = match ranges.binary_search_by(|probe| {
9871 let cmp = probe
9872 .end
9873 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9874 if cmp.is_gt() {
9875 Ordering::Greater
9876 } else {
9877 Ordering::Less
9878 }
9879 }) {
9880 Ok(i) | Err(i) => i,
9881 };
9882 for range in &ranges[start_ix..] {
9883 if range
9884 .start
9885 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9886 .is_ge()
9887 {
9888 break;
9889 }
9890
9891 let start = range.start.to_display_point(&display_snapshot);
9892 let end = range.end.to_display_point(&display_snapshot);
9893 results.push((start..end, color))
9894 }
9895 }
9896 results
9897 }
9898
9899 pub fn background_highlight_row_ranges<T: 'static>(
9900 &self,
9901 search_range: Range<Anchor>,
9902 display_snapshot: &DisplaySnapshot,
9903 count: usize,
9904 ) -> Vec<RangeInclusive<DisplayPoint>> {
9905 let mut results = Vec::new();
9906 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9907 return vec![];
9908 };
9909
9910 let start_ix = match ranges.binary_search_by(|probe| {
9911 let cmp = probe
9912 .end
9913 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9914 if cmp.is_gt() {
9915 Ordering::Greater
9916 } else {
9917 Ordering::Less
9918 }
9919 }) {
9920 Ok(i) | Err(i) => i,
9921 };
9922 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9923 if let (Some(start_display), Some(end_display)) = (start, end) {
9924 results.push(
9925 start_display.to_display_point(display_snapshot)
9926 ..=end_display.to_display_point(display_snapshot),
9927 );
9928 }
9929 };
9930 let mut start_row: Option<Point> = None;
9931 let mut end_row: Option<Point> = None;
9932 if ranges.len() > count {
9933 return Vec::new();
9934 }
9935 for range in &ranges[start_ix..] {
9936 if range
9937 .start
9938 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9939 .is_ge()
9940 {
9941 break;
9942 }
9943 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9944 if let Some(current_row) = &end_row {
9945 if end.row == current_row.row {
9946 continue;
9947 }
9948 }
9949 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9950 if start_row.is_none() {
9951 assert_eq!(end_row, None);
9952 start_row = Some(start);
9953 end_row = Some(end);
9954 continue;
9955 }
9956 if let Some(current_end) = end_row.as_mut() {
9957 if start.row > current_end.row + 1 {
9958 push_region(start_row, end_row);
9959 start_row = Some(start);
9960 end_row = Some(end);
9961 } else {
9962 // Merge two hunks.
9963 *current_end = end;
9964 }
9965 } else {
9966 unreachable!();
9967 }
9968 }
9969 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9970 push_region(start_row, end_row);
9971 results
9972 }
9973
9974 /// Get the text ranges corresponding to the redaction query
9975 pub fn redacted_ranges(
9976 &self,
9977 search_range: Range<Anchor>,
9978 display_snapshot: &DisplaySnapshot,
9979 cx: &WindowContext,
9980 ) -> Vec<Range<DisplayPoint>> {
9981 display_snapshot
9982 .buffer_snapshot
9983 .redacted_ranges(search_range, |file| {
9984 if let Some(file) = file {
9985 file.is_private()
9986 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9987 } else {
9988 false
9989 }
9990 })
9991 .map(|range| {
9992 range.start.to_display_point(display_snapshot)
9993 ..range.end.to_display_point(display_snapshot)
9994 })
9995 .collect()
9996 }
9997
9998 pub fn highlight_text<T: 'static>(
9999 &mut self,
10000 ranges: Vec<Range<Anchor>>,
10001 style: HighlightStyle,
10002 cx: &mut ViewContext<Self>,
10003 ) {
10004 self.display_map.update(cx, |map, _| {
10005 map.highlight_text(TypeId::of::<T>(), ranges, style)
10006 });
10007 cx.notify();
10008 }
10009
10010 pub(crate) fn highlight_inlays<T: 'static>(
10011 &mut self,
10012 highlights: Vec<InlayHighlight>,
10013 style: HighlightStyle,
10014 cx: &mut ViewContext<Self>,
10015 ) {
10016 self.display_map.update(cx, |map, _| {
10017 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10018 });
10019 cx.notify();
10020 }
10021
10022 pub fn text_highlights<'a, T: 'static>(
10023 &'a self,
10024 cx: &'a AppContext,
10025 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10026 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10027 }
10028
10029 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10030 let cleared = self
10031 .display_map
10032 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10033 if cleared {
10034 cx.notify();
10035 }
10036 }
10037
10038 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10039 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10040 && self.focus_handle.is_focused(cx)
10041 }
10042
10043 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10044 cx.notify();
10045 }
10046
10047 fn on_buffer_event(
10048 &mut self,
10049 multibuffer: Model<MultiBuffer>,
10050 event: &multi_buffer::Event,
10051 cx: &mut ViewContext<Self>,
10052 ) {
10053 match event {
10054 multi_buffer::Event::Edited {
10055 singleton_buffer_edited,
10056 } => {
10057 self.scrollbar_marker_state.dirty = true;
10058 self.refresh_active_diagnostics(cx);
10059 self.refresh_code_actions(cx);
10060 if self.has_active_inline_completion(cx) {
10061 self.update_visible_inline_completion(cx);
10062 }
10063 cx.emit(EditorEvent::BufferEdited);
10064 cx.emit(SearchEvent::MatchesInvalidated);
10065
10066 if *singleton_buffer_edited {
10067 if let Some(project) = &self.project {
10068 let project = project.read(cx);
10069 let languages_affected = multibuffer
10070 .read(cx)
10071 .all_buffers()
10072 .into_iter()
10073 .filter_map(|buffer| {
10074 let buffer = buffer.read(cx);
10075 let language = buffer.language()?;
10076 if project.is_local()
10077 && project.language_servers_for_buffer(buffer, cx).count() == 0
10078 {
10079 None
10080 } else {
10081 Some(language)
10082 }
10083 })
10084 .cloned()
10085 .collect::<HashSet<_>>();
10086 if !languages_affected.is_empty() {
10087 self.refresh_inlay_hints(
10088 InlayHintRefreshReason::BufferEdited(languages_affected),
10089 cx,
10090 );
10091 }
10092 }
10093 }
10094
10095 let Some(project) = &self.project else { return };
10096 let telemetry = project.read(cx).client().telemetry().clone();
10097 telemetry.log_edit_event("editor");
10098 }
10099 multi_buffer::Event::ExcerptsAdded {
10100 buffer,
10101 predecessor,
10102 excerpts,
10103 } => {
10104 cx.emit(EditorEvent::ExcerptsAdded {
10105 buffer: buffer.clone(),
10106 predecessor: *predecessor,
10107 excerpts: excerpts.clone(),
10108 });
10109 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10110 }
10111 multi_buffer::Event::ExcerptsRemoved { ids } => {
10112 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10113 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10114 }
10115 multi_buffer::Event::Reparsed => {
10116 self.tasks_update_task = Some(self.refresh_runnables(cx));
10117
10118 cx.emit(EditorEvent::Reparsed);
10119 }
10120 multi_buffer::Event::LanguageChanged => {
10121 cx.emit(EditorEvent::Reparsed);
10122 cx.notify();
10123 }
10124 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10125 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10126 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10127 cx.emit(EditorEvent::TitleChanged)
10128 }
10129 multi_buffer::Event::DiffBaseChanged => {
10130 self.scrollbar_marker_state.dirty = true;
10131 cx.emit(EditorEvent::DiffBaseChanged);
10132 cx.notify();
10133 }
10134 multi_buffer::Event::DiffUpdated { buffer } => {
10135 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10136 cx.notify();
10137 }
10138 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10139 multi_buffer::Event::DiagnosticsUpdated => {
10140 self.refresh_active_diagnostics(cx);
10141 self.scrollbar_marker_state.dirty = true;
10142 cx.notify();
10143 }
10144 _ => {}
10145 };
10146 }
10147
10148 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10149 cx.notify();
10150 }
10151
10152 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10153 self.refresh_inline_completion(true, cx);
10154 self.refresh_inlay_hints(
10155 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10156 self.selections.newest_anchor().head(),
10157 &self.buffer.read(cx).snapshot(cx),
10158 cx,
10159 )),
10160 cx,
10161 );
10162 let editor_settings = EditorSettings::get_global(cx);
10163 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10164 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10165
10166 if self.mode == EditorMode::Full {
10167 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10168 if self.git_blame_inline_enabled != inline_blame_enabled {
10169 self.toggle_git_blame_inline_internal(false, cx);
10170 }
10171 }
10172
10173 cx.notify();
10174 }
10175
10176 pub fn set_searchable(&mut self, searchable: bool) {
10177 self.searchable = searchable;
10178 }
10179
10180 pub fn searchable(&self) -> bool {
10181 self.searchable
10182 }
10183
10184 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10185 self.open_excerpts_common(true, cx)
10186 }
10187
10188 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10189 self.open_excerpts_common(false, cx)
10190 }
10191
10192 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10193 let buffer = self.buffer.read(cx);
10194 if buffer.is_singleton() {
10195 cx.propagate();
10196 return;
10197 }
10198
10199 let Some(workspace) = self.workspace() else {
10200 cx.propagate();
10201 return;
10202 };
10203
10204 let mut new_selections_by_buffer = HashMap::default();
10205 for selection in self.selections.all::<usize>(cx) {
10206 for (buffer, mut range, _) in
10207 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10208 {
10209 if selection.reversed {
10210 mem::swap(&mut range.start, &mut range.end);
10211 }
10212 new_selections_by_buffer
10213 .entry(buffer)
10214 .or_insert(Vec::new())
10215 .push(range)
10216 }
10217 }
10218
10219 // We defer the pane interaction because we ourselves are a workspace item
10220 // and activating a new item causes the pane to call a method on us reentrantly,
10221 // which panics if we're on the stack.
10222 cx.window_context().defer(move |cx| {
10223 workspace.update(cx, |workspace, cx| {
10224 let pane = if split {
10225 workspace.adjacent_pane(cx)
10226 } else {
10227 workspace.active_pane().clone()
10228 };
10229
10230 for (buffer, ranges) in new_selections_by_buffer {
10231 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10232 editor.update(cx, |editor, cx| {
10233 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10234 s.select_ranges(ranges);
10235 });
10236 });
10237 }
10238 })
10239 });
10240 }
10241
10242 fn jump(
10243 &mut self,
10244 path: ProjectPath,
10245 position: Point,
10246 anchor: language::Anchor,
10247 offset_from_top: u32,
10248 cx: &mut ViewContext<Self>,
10249 ) {
10250 let workspace = self.workspace();
10251 cx.spawn(|_, mut cx| async move {
10252 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10253 let editor = workspace.update(&mut cx, |workspace, cx| {
10254 // Reset the preview item id before opening the new item
10255 workspace.active_pane().update(cx, |pane, cx| {
10256 pane.set_preview_item_id(None, cx);
10257 });
10258 workspace.open_path_preview(path, None, true, true, cx)
10259 })?;
10260 let editor = editor
10261 .await?
10262 .downcast::<Editor>()
10263 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10264 .downgrade();
10265 editor.update(&mut cx, |editor, cx| {
10266 let buffer = editor
10267 .buffer()
10268 .read(cx)
10269 .as_singleton()
10270 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10271 let buffer = buffer.read(cx);
10272 let cursor = if buffer.can_resolve(&anchor) {
10273 language::ToPoint::to_point(&anchor, buffer)
10274 } else {
10275 buffer.clip_point(position, Bias::Left)
10276 };
10277
10278 let nav_history = editor.nav_history.take();
10279 editor.change_selections(
10280 Some(Autoscroll::top_relative(offset_from_top as usize)),
10281 cx,
10282 |s| {
10283 s.select_ranges([cursor..cursor]);
10284 },
10285 );
10286 editor.nav_history = nav_history;
10287
10288 anyhow::Ok(())
10289 })??;
10290
10291 anyhow::Ok(())
10292 })
10293 .detach_and_log_err(cx);
10294 }
10295
10296 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10297 let snapshot = self.buffer.read(cx).read(cx);
10298 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10299 Some(
10300 ranges
10301 .iter()
10302 .map(move |range| {
10303 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10304 })
10305 .collect(),
10306 )
10307 }
10308
10309 fn selection_replacement_ranges(
10310 &self,
10311 range: Range<OffsetUtf16>,
10312 cx: &AppContext,
10313 ) -> Vec<Range<OffsetUtf16>> {
10314 let selections = self.selections.all::<OffsetUtf16>(cx);
10315 let newest_selection = selections
10316 .iter()
10317 .max_by_key(|selection| selection.id)
10318 .unwrap();
10319 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10320 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10321 let snapshot = self.buffer.read(cx).read(cx);
10322 selections
10323 .into_iter()
10324 .map(|mut selection| {
10325 selection.start.0 =
10326 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10327 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10328 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10329 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10330 })
10331 .collect()
10332 }
10333
10334 fn report_editor_event(
10335 &self,
10336 operation: &'static str,
10337 file_extension: Option<String>,
10338 cx: &AppContext,
10339 ) {
10340 if cfg!(any(test, feature = "test-support")) {
10341 return;
10342 }
10343
10344 let Some(project) = &self.project else { return };
10345
10346 // If None, we are in a file without an extension
10347 let file = self
10348 .buffer
10349 .read(cx)
10350 .as_singleton()
10351 .and_then(|b| b.read(cx).file());
10352 let file_extension = file_extension.or(file
10353 .as_ref()
10354 .and_then(|file| Path::new(file.file_name(cx)).extension())
10355 .and_then(|e| e.to_str())
10356 .map(|a| a.to_string()));
10357
10358 let vim_mode = cx
10359 .global::<SettingsStore>()
10360 .raw_user_settings()
10361 .get("vim_mode")
10362 == Some(&serde_json::Value::Bool(true));
10363
10364 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10365 == language::language_settings::InlineCompletionProvider::Copilot;
10366 let copilot_enabled_for_language = self
10367 .buffer
10368 .read(cx)
10369 .settings_at(0, cx)
10370 .show_inline_completions;
10371
10372 let telemetry = project.read(cx).client().telemetry().clone();
10373 telemetry.report_editor_event(
10374 file_extension,
10375 vim_mode,
10376 operation,
10377 copilot_enabled,
10378 copilot_enabled_for_language,
10379 )
10380 }
10381
10382 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10383 /// with each line being an array of {text, highlight} objects.
10384 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10385 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10386 return;
10387 };
10388
10389 #[derive(Serialize)]
10390 struct Chunk<'a> {
10391 text: String,
10392 highlight: Option<&'a str>,
10393 }
10394
10395 let snapshot = buffer.read(cx).snapshot();
10396 let range = self
10397 .selected_text_range(cx)
10398 .and_then(|selected_range| {
10399 if selected_range.is_empty() {
10400 None
10401 } else {
10402 Some(selected_range)
10403 }
10404 })
10405 .unwrap_or_else(|| 0..snapshot.len());
10406
10407 let chunks = snapshot.chunks(range, true);
10408 let mut lines = Vec::new();
10409 let mut line: VecDeque<Chunk> = VecDeque::new();
10410
10411 let Some(style) = self.style.as_ref() else {
10412 return;
10413 };
10414
10415 for chunk in chunks {
10416 let highlight = chunk
10417 .syntax_highlight_id
10418 .and_then(|id| id.name(&style.syntax));
10419 let mut chunk_lines = chunk.text.split('\n').peekable();
10420 while let Some(text) = chunk_lines.next() {
10421 let mut merged_with_last_token = false;
10422 if let Some(last_token) = line.back_mut() {
10423 if last_token.highlight == highlight {
10424 last_token.text.push_str(text);
10425 merged_with_last_token = true;
10426 }
10427 }
10428
10429 if !merged_with_last_token {
10430 line.push_back(Chunk {
10431 text: text.into(),
10432 highlight,
10433 });
10434 }
10435
10436 if chunk_lines.peek().is_some() {
10437 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10438 line.pop_front();
10439 }
10440 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10441 line.pop_back();
10442 }
10443
10444 lines.push(mem::take(&mut line));
10445 }
10446 }
10447 }
10448
10449 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10450 return;
10451 };
10452 cx.write_to_clipboard(ClipboardItem::new(lines));
10453 }
10454
10455 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10456 &self.inlay_hint_cache
10457 }
10458
10459 pub fn replay_insert_event(
10460 &mut self,
10461 text: &str,
10462 relative_utf16_range: Option<Range<isize>>,
10463 cx: &mut ViewContext<Self>,
10464 ) {
10465 if !self.input_enabled {
10466 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10467 return;
10468 }
10469 if let Some(relative_utf16_range) = relative_utf16_range {
10470 let selections = self.selections.all::<OffsetUtf16>(cx);
10471 self.change_selections(None, cx, |s| {
10472 let new_ranges = selections.into_iter().map(|range| {
10473 let start = OffsetUtf16(
10474 range
10475 .head()
10476 .0
10477 .saturating_add_signed(relative_utf16_range.start),
10478 );
10479 let end = OffsetUtf16(
10480 range
10481 .head()
10482 .0
10483 .saturating_add_signed(relative_utf16_range.end),
10484 );
10485 start..end
10486 });
10487 s.select_ranges(new_ranges);
10488 });
10489 }
10490
10491 self.handle_input(text, cx);
10492 }
10493
10494 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10495 let Some(project) = self.project.as_ref() else {
10496 return false;
10497 };
10498 let project = project.read(cx);
10499
10500 let mut supports = false;
10501 self.buffer().read(cx).for_each_buffer(|buffer| {
10502 if !supports {
10503 supports = project
10504 .language_servers_for_buffer(buffer.read(cx), cx)
10505 .any(
10506 |(_, server)| match server.capabilities().inlay_hint_provider {
10507 Some(lsp::OneOf::Left(enabled)) => enabled,
10508 Some(lsp::OneOf::Right(_)) => true,
10509 None => false,
10510 },
10511 )
10512 }
10513 });
10514 supports
10515 }
10516
10517 pub fn focus(&self, cx: &mut WindowContext) {
10518 cx.focus(&self.focus_handle)
10519 }
10520
10521 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10522 self.focus_handle.is_focused(cx)
10523 }
10524
10525 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10526 cx.emit(EditorEvent::Focused);
10527
10528 if let Some(rename) = self.pending_rename.as_ref() {
10529 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10530 cx.focus(&rename_editor_focus_handle);
10531 } else {
10532 if let Some(blame) = self.blame.as_ref() {
10533 blame.update(cx, GitBlame::focus)
10534 }
10535
10536 self.blink_manager.update(cx, BlinkManager::enable);
10537 self.show_cursor_names(cx);
10538 self.buffer.update(cx, |buffer, cx| {
10539 buffer.finalize_last_transaction(cx);
10540 if self.leader_peer_id.is_none() {
10541 buffer.set_active_selections(
10542 &self.selections.disjoint_anchors(),
10543 self.selections.line_mode,
10544 self.cursor_shape,
10545 cx,
10546 );
10547 }
10548 });
10549 }
10550 }
10551
10552 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10553 self.blink_manager.update(cx, BlinkManager::disable);
10554 self.buffer
10555 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10556
10557 if let Some(blame) = self.blame.as_ref() {
10558 blame.update(cx, GitBlame::blur)
10559 }
10560 self.hide_context_menu(cx);
10561 hide_hover(self, cx);
10562 cx.emit(EditorEvent::Blurred);
10563 cx.notify();
10564 }
10565
10566 pub fn register_action<A: Action>(
10567 &mut self,
10568 listener: impl Fn(&A, &mut WindowContext) + 'static,
10569 ) -> &mut Self {
10570 let listener = Arc::new(listener);
10571
10572 self.editor_actions.push(Box::new(move |cx| {
10573 let _view = cx.view().clone();
10574 let cx = cx.window_context();
10575 let listener = listener.clone();
10576 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10577 let action = action.downcast_ref().unwrap();
10578 if phase == DispatchPhase::Bubble {
10579 listener(action, cx)
10580 }
10581 })
10582 }));
10583 self
10584 }
10585}
10586
10587fn hunks_for_selections(
10588 multi_buffer_snapshot: &MultiBufferSnapshot,
10589 selections: &[Selection<Anchor>],
10590) -> Vec<DiffHunk<u32>> {
10591 let mut hunks = Vec::with_capacity(selections.len());
10592 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10593 HashMap::default();
10594 let display_rows_for_selections = selections.iter().map(|selection| {
10595 let head = selection.head();
10596 let tail = selection.tail();
10597 let start = tail.to_point(&multi_buffer_snapshot).row;
10598 let end = head.to_point(&multi_buffer_snapshot).row;
10599 if start > end {
10600 end..start
10601 } else {
10602 start..end
10603 }
10604 });
10605
10606 for selected_multi_buffer_rows in display_rows_for_selections {
10607 let query_rows = selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
10608 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10609 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10610 // when the caret is just above or just below the deleted hunk.
10611 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
10612 let related_to_selection = if allow_adjacent {
10613 hunk.associated_range.overlaps(&query_rows)
10614 || hunk.associated_range.start == query_rows.end
10615 || hunk.associated_range.end == query_rows.start
10616 } else {
10617 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10618 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10619 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10620 || selected_multi_buffer_rows.end == hunk.associated_range.start
10621 };
10622 if related_to_selection {
10623 if !processed_buffer_rows
10624 .entry(hunk.buffer_id)
10625 .or_default()
10626 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10627 {
10628 continue;
10629 }
10630 hunks.push(hunk);
10631 }
10632 }
10633 }
10634
10635 hunks
10636}
10637
10638pub trait CollaborationHub {
10639 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10640 fn user_participant_indices<'a>(
10641 &self,
10642 cx: &'a AppContext,
10643 ) -> &'a HashMap<u64, ParticipantIndex>;
10644 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10645}
10646
10647impl CollaborationHub for Model<Project> {
10648 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10649 self.read(cx).collaborators()
10650 }
10651
10652 fn user_participant_indices<'a>(
10653 &self,
10654 cx: &'a AppContext,
10655 ) -> &'a HashMap<u64, ParticipantIndex> {
10656 self.read(cx).user_store().read(cx).participant_indices()
10657 }
10658
10659 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10660 let this = self.read(cx);
10661 let user_ids = this.collaborators().values().map(|c| c.user_id);
10662 this.user_store().read_with(cx, |user_store, cx| {
10663 user_store.participant_names(user_ids, cx)
10664 })
10665 }
10666}
10667
10668pub trait CompletionProvider {
10669 fn completions(
10670 &self,
10671 buffer: &Model<Buffer>,
10672 buffer_position: text::Anchor,
10673 cx: &mut ViewContext<Editor>,
10674 ) -> Task<Result<Vec<Completion>>>;
10675
10676 fn resolve_completions(
10677 &self,
10678 buffer: Model<Buffer>,
10679 completion_indices: Vec<usize>,
10680 completions: Arc<RwLock<Box<[Completion]>>>,
10681 cx: &mut ViewContext<Editor>,
10682 ) -> Task<Result<bool>>;
10683
10684 fn apply_additional_edits_for_completion(
10685 &self,
10686 buffer: Model<Buffer>,
10687 completion: Completion,
10688 push_to_history: bool,
10689 cx: &mut ViewContext<Editor>,
10690 ) -> Task<Result<Option<language::Transaction>>>;
10691}
10692
10693impl CompletionProvider for Model<Project> {
10694 fn completions(
10695 &self,
10696 buffer: &Model<Buffer>,
10697 buffer_position: text::Anchor,
10698 cx: &mut ViewContext<Editor>,
10699 ) -> Task<Result<Vec<Completion>>> {
10700 self.update(cx, |project, cx| {
10701 project.completions(&buffer, buffer_position, cx)
10702 })
10703 }
10704
10705 fn resolve_completions(
10706 &self,
10707 buffer: Model<Buffer>,
10708 completion_indices: Vec<usize>,
10709 completions: Arc<RwLock<Box<[Completion]>>>,
10710 cx: &mut ViewContext<Editor>,
10711 ) -> Task<Result<bool>> {
10712 self.update(cx, |project, cx| {
10713 project.resolve_completions(buffer, completion_indices, completions, cx)
10714 })
10715 }
10716
10717 fn apply_additional_edits_for_completion(
10718 &self,
10719 buffer: Model<Buffer>,
10720 completion: Completion,
10721 push_to_history: bool,
10722 cx: &mut ViewContext<Editor>,
10723 ) -> Task<Result<Option<language::Transaction>>> {
10724 self.update(cx, |project, cx| {
10725 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10726 })
10727 }
10728}
10729
10730fn inlay_hint_settings(
10731 location: Anchor,
10732 snapshot: &MultiBufferSnapshot,
10733 cx: &mut ViewContext<'_, Editor>,
10734) -> InlayHintSettings {
10735 let file = snapshot.file_at(location);
10736 let language = snapshot.language_at(location);
10737 let settings = all_language_settings(file, cx);
10738 settings
10739 .language(language.map(|l| l.name()).as_deref())
10740 .inlay_hints
10741}
10742
10743fn consume_contiguous_rows(
10744 contiguous_row_selections: &mut Vec<Selection<Point>>,
10745 selection: &Selection<Point>,
10746 display_map: &DisplaySnapshot,
10747 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10748) -> (u32, u32) {
10749 contiguous_row_selections.push(selection.clone());
10750 let start_row = selection.start.row;
10751 let mut end_row = ending_row(selection, display_map);
10752
10753 while let Some(next_selection) = selections.peek() {
10754 if next_selection.start.row <= end_row {
10755 end_row = ending_row(next_selection, display_map);
10756 contiguous_row_selections.push(selections.next().unwrap().clone());
10757 } else {
10758 break;
10759 }
10760 }
10761 (start_row, end_row)
10762}
10763
10764fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10765 if next_selection.end.column > 0 || next_selection.is_empty() {
10766 display_map.next_line_boundary(next_selection.end).0.row + 1
10767 } else {
10768 next_selection.end.row
10769 }
10770}
10771
10772impl EditorSnapshot {
10773 pub fn remote_selections_in_range<'a>(
10774 &'a self,
10775 range: &'a Range<Anchor>,
10776 collaboration_hub: &dyn CollaborationHub,
10777 cx: &'a AppContext,
10778 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10779 let participant_names = collaboration_hub.user_names(cx);
10780 let participant_indices = collaboration_hub.user_participant_indices(cx);
10781 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10782 let collaborators_by_replica_id = collaborators_by_peer_id
10783 .iter()
10784 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10785 .collect::<HashMap<_, _>>();
10786 self.buffer_snapshot
10787 .remote_selections_in_range(range)
10788 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10789 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10790 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10791 let user_name = participant_names.get(&collaborator.user_id).cloned();
10792 Some(RemoteSelection {
10793 replica_id,
10794 selection,
10795 cursor_shape,
10796 line_mode,
10797 participant_index,
10798 peer_id: collaborator.peer_id,
10799 user_name,
10800 })
10801 })
10802 }
10803
10804 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10805 self.display_snapshot.buffer_snapshot.language_at(position)
10806 }
10807
10808 pub fn is_focused(&self) -> bool {
10809 self.is_focused
10810 }
10811
10812 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10813 self.placeholder_text.as_ref()
10814 }
10815
10816 pub fn scroll_position(&self) -> gpui::Point<f32> {
10817 self.scroll_anchor.scroll_position(&self.display_snapshot)
10818 }
10819
10820 pub fn gutter_dimensions(
10821 &self,
10822 font_id: FontId,
10823 font_size: Pixels,
10824 em_width: Pixels,
10825 max_line_number_width: Pixels,
10826 cx: &AppContext,
10827 ) -> GutterDimensions {
10828 if !self.show_gutter {
10829 return GutterDimensions::default();
10830 }
10831 let descent = cx.text_system().descent(font_id, font_size);
10832
10833 let show_git_gutter = matches!(
10834 ProjectSettings::get_global(cx).git.git_gutter,
10835 Some(GitGutterSetting::TrackedFiles)
10836 );
10837 let gutter_settings = EditorSettings::get_global(cx).gutter;
10838 let gutter_lines_enabled = gutter_settings.line_numbers;
10839 let line_gutter_width = if gutter_lines_enabled {
10840 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10841 let min_width_for_number_on_gutter = em_width * 4.0;
10842 max_line_number_width.max(min_width_for_number_on_gutter)
10843 } else {
10844 0.0.into()
10845 };
10846
10847 let git_blame_entries_width = self
10848 .render_git_blame_gutter
10849 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10850
10851 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10852 left_padding += if gutter_settings.code_actions {
10853 em_width * 3.0
10854 } else if show_git_gutter && gutter_lines_enabled {
10855 em_width * 2.0
10856 } else if show_git_gutter || gutter_lines_enabled {
10857 em_width
10858 } else {
10859 px(0.)
10860 };
10861
10862 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10863 em_width * 4.0
10864 } else if gutter_settings.folds {
10865 em_width * 3.0
10866 } else if gutter_lines_enabled {
10867 em_width
10868 } else {
10869 px(0.)
10870 };
10871
10872 GutterDimensions {
10873 left_padding,
10874 right_padding,
10875 width: line_gutter_width + left_padding + right_padding,
10876 margin: -descent,
10877 git_blame_entries_width,
10878 }
10879 }
10880}
10881
10882impl Deref for EditorSnapshot {
10883 type Target = DisplaySnapshot;
10884
10885 fn deref(&self) -> &Self::Target {
10886 &self.display_snapshot
10887 }
10888}
10889
10890#[derive(Clone, Debug, PartialEq, Eq)]
10891pub enum EditorEvent {
10892 InputIgnored {
10893 text: Arc<str>,
10894 },
10895 InputHandled {
10896 utf16_range_to_replace: Option<Range<isize>>,
10897 text: Arc<str>,
10898 },
10899 ExcerptsAdded {
10900 buffer: Model<Buffer>,
10901 predecessor: ExcerptId,
10902 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10903 },
10904 ExcerptsRemoved {
10905 ids: Vec<ExcerptId>,
10906 },
10907 BufferEdited,
10908 Edited,
10909 Reparsed,
10910 Focused,
10911 Blurred,
10912 DirtyChanged,
10913 Saved,
10914 TitleChanged,
10915 DiffBaseChanged,
10916 SelectionsChanged {
10917 local: bool,
10918 },
10919 ScrollPositionChanged {
10920 local: bool,
10921 autoscroll: bool,
10922 },
10923 Closed,
10924 TransactionUndone {
10925 transaction_id: clock::Lamport,
10926 },
10927 TransactionBegun {
10928 transaction_id: clock::Lamport,
10929 },
10930}
10931
10932impl EventEmitter<EditorEvent> for Editor {}
10933
10934impl FocusableView for Editor {
10935 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10936 self.focus_handle.clone()
10937 }
10938}
10939
10940impl Render for Editor {
10941 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10942 let settings = ThemeSettings::get_global(cx);
10943
10944 let text_style = match self.mode {
10945 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10946 color: cx.theme().colors().editor_foreground,
10947 font_family: settings.ui_font.family.clone(),
10948 font_features: settings.ui_font.features.clone(),
10949 font_size: rems(0.875).into(),
10950 font_weight: FontWeight::NORMAL,
10951 font_style: FontStyle::Normal,
10952 line_height: relative(settings.buffer_line_height.value()),
10953 background_color: None,
10954 underline: None,
10955 strikethrough: None,
10956 white_space: WhiteSpace::Normal,
10957 },
10958 EditorMode::Full => TextStyle {
10959 color: cx.theme().colors().editor_foreground,
10960 font_family: settings.buffer_font.family.clone(),
10961 font_features: settings.buffer_font.features.clone(),
10962 font_size: settings.buffer_font_size(cx).into(),
10963 font_weight: FontWeight::NORMAL,
10964 font_style: FontStyle::Normal,
10965 line_height: relative(settings.buffer_line_height.value()),
10966 background_color: None,
10967 underline: None,
10968 strikethrough: None,
10969 white_space: WhiteSpace::Normal,
10970 },
10971 };
10972
10973 let background = match self.mode {
10974 EditorMode::SingleLine => cx.theme().system().transparent,
10975 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10976 EditorMode::Full => cx.theme().colors().editor_background,
10977 };
10978
10979 EditorElement::new(
10980 cx.view(),
10981 EditorStyle {
10982 background,
10983 local_player: cx.theme().players().local(),
10984 text: text_style,
10985 scrollbar_width: px(13.),
10986 syntax: cx.theme().syntax().clone(),
10987 status: cx.theme().status().clone(),
10988 inlay_hints_style: HighlightStyle {
10989 color: Some(cx.theme().status().hint),
10990 ..HighlightStyle::default()
10991 },
10992 suggestions_style: HighlightStyle {
10993 color: Some(cx.theme().status().predictive),
10994 ..HighlightStyle::default()
10995 },
10996 },
10997 )
10998 }
10999}
11000
11001impl ViewInputHandler for Editor {
11002 fn text_for_range(
11003 &mut self,
11004 range_utf16: Range<usize>,
11005 cx: &mut ViewContext<Self>,
11006 ) -> Option<String> {
11007 Some(
11008 self.buffer
11009 .read(cx)
11010 .read(cx)
11011 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11012 .collect(),
11013 )
11014 }
11015
11016 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11017 // Prevent the IME menu from appearing when holding down an alphabetic key
11018 // while input is disabled.
11019 if !self.input_enabled {
11020 return None;
11021 }
11022
11023 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11024 Some(range.start.0..range.end.0)
11025 }
11026
11027 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11028 let snapshot = self.buffer.read(cx).read(cx);
11029 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11030 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11031 }
11032
11033 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11034 self.clear_highlights::<InputComposition>(cx);
11035 self.ime_transaction.take();
11036 }
11037
11038 fn replace_text_in_range(
11039 &mut self,
11040 range_utf16: Option<Range<usize>>,
11041 text: &str,
11042 cx: &mut ViewContext<Self>,
11043 ) {
11044 if !self.input_enabled {
11045 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11046 return;
11047 }
11048
11049 self.transact(cx, |this, cx| {
11050 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11051 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11052 Some(this.selection_replacement_ranges(range_utf16, cx))
11053 } else {
11054 this.marked_text_ranges(cx)
11055 };
11056
11057 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11058 let newest_selection_id = this.selections.newest_anchor().id;
11059 this.selections
11060 .all::<OffsetUtf16>(cx)
11061 .iter()
11062 .zip(ranges_to_replace.iter())
11063 .find_map(|(selection, range)| {
11064 if selection.id == newest_selection_id {
11065 Some(
11066 (range.start.0 as isize - selection.head().0 as isize)
11067 ..(range.end.0 as isize - selection.head().0 as isize),
11068 )
11069 } else {
11070 None
11071 }
11072 })
11073 });
11074
11075 cx.emit(EditorEvent::InputHandled {
11076 utf16_range_to_replace: range_to_replace,
11077 text: text.into(),
11078 });
11079
11080 if let Some(new_selected_ranges) = new_selected_ranges {
11081 this.change_selections(None, cx, |selections| {
11082 selections.select_ranges(new_selected_ranges)
11083 });
11084 this.backspace(&Default::default(), cx);
11085 }
11086
11087 this.handle_input(text, cx);
11088 });
11089
11090 if let Some(transaction) = self.ime_transaction {
11091 self.buffer.update(cx, |buffer, cx| {
11092 buffer.group_until_transaction(transaction, cx);
11093 });
11094 }
11095
11096 self.unmark_text(cx);
11097 }
11098
11099 fn replace_and_mark_text_in_range(
11100 &mut self,
11101 range_utf16: Option<Range<usize>>,
11102 text: &str,
11103 new_selected_range_utf16: Option<Range<usize>>,
11104 cx: &mut ViewContext<Self>,
11105 ) {
11106 if !self.input_enabled {
11107 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11108 return;
11109 }
11110
11111 let transaction = self.transact(cx, |this, cx| {
11112 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11113 let snapshot = this.buffer.read(cx).read(cx);
11114 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11115 for marked_range in &mut marked_ranges {
11116 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11117 marked_range.start.0 += relative_range_utf16.start;
11118 marked_range.start =
11119 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11120 marked_range.end =
11121 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11122 }
11123 }
11124 Some(marked_ranges)
11125 } else if let Some(range_utf16) = range_utf16 {
11126 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11127 Some(this.selection_replacement_ranges(range_utf16, cx))
11128 } else {
11129 None
11130 };
11131
11132 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11133 let newest_selection_id = this.selections.newest_anchor().id;
11134 this.selections
11135 .all::<OffsetUtf16>(cx)
11136 .iter()
11137 .zip(ranges_to_replace.iter())
11138 .find_map(|(selection, range)| {
11139 if selection.id == newest_selection_id {
11140 Some(
11141 (range.start.0 as isize - selection.head().0 as isize)
11142 ..(range.end.0 as isize - selection.head().0 as isize),
11143 )
11144 } else {
11145 None
11146 }
11147 })
11148 });
11149
11150 cx.emit(EditorEvent::InputHandled {
11151 utf16_range_to_replace: range_to_replace,
11152 text: text.into(),
11153 });
11154
11155 if let Some(ranges) = ranges_to_replace {
11156 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11157 }
11158
11159 let marked_ranges = {
11160 let snapshot = this.buffer.read(cx).read(cx);
11161 this.selections
11162 .disjoint_anchors()
11163 .iter()
11164 .map(|selection| {
11165 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11166 })
11167 .collect::<Vec<_>>()
11168 };
11169
11170 if text.is_empty() {
11171 this.unmark_text(cx);
11172 } else {
11173 this.highlight_text::<InputComposition>(
11174 marked_ranges.clone(),
11175 HighlightStyle {
11176 underline: Some(UnderlineStyle {
11177 thickness: px(1.),
11178 color: None,
11179 wavy: false,
11180 }),
11181 ..Default::default()
11182 },
11183 cx,
11184 );
11185 }
11186
11187 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11188 let use_autoclose = this.use_autoclose;
11189 this.set_use_autoclose(false);
11190 this.handle_input(text, cx);
11191 this.set_use_autoclose(use_autoclose);
11192
11193 if let Some(new_selected_range) = new_selected_range_utf16 {
11194 let snapshot = this.buffer.read(cx).read(cx);
11195 let new_selected_ranges = marked_ranges
11196 .into_iter()
11197 .map(|marked_range| {
11198 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11199 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11200 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11201 snapshot.clip_offset_utf16(new_start, Bias::Left)
11202 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11203 })
11204 .collect::<Vec<_>>();
11205
11206 drop(snapshot);
11207 this.change_selections(None, cx, |selections| {
11208 selections.select_ranges(new_selected_ranges)
11209 });
11210 }
11211 });
11212
11213 self.ime_transaction = self.ime_transaction.or(transaction);
11214 if let Some(transaction) = self.ime_transaction {
11215 self.buffer.update(cx, |buffer, cx| {
11216 buffer.group_until_transaction(transaction, cx);
11217 });
11218 }
11219
11220 if self.text_highlights::<InputComposition>(cx).is_none() {
11221 self.ime_transaction.take();
11222 }
11223 }
11224
11225 fn bounds_for_range(
11226 &mut self,
11227 range_utf16: Range<usize>,
11228 element_bounds: gpui::Bounds<Pixels>,
11229 cx: &mut ViewContext<Self>,
11230 ) -> Option<gpui::Bounds<Pixels>> {
11231 let text_layout_details = self.text_layout_details(cx);
11232 let style = &text_layout_details.editor_style;
11233 let font_id = cx.text_system().resolve_font(&style.text.font());
11234 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11235 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11236 let em_width = cx
11237 .text_system()
11238 .typographic_bounds(font_id, font_size, 'm')
11239 .unwrap()
11240 .size
11241 .width;
11242
11243 let snapshot = self.snapshot(cx);
11244 let scroll_position = snapshot.scroll_position();
11245 let scroll_left = scroll_position.x * em_width;
11246
11247 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11248 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11249 + self.gutter_dimensions.width;
11250 let y = line_height * (start.row() as f32 - scroll_position.y);
11251
11252 Some(Bounds {
11253 origin: element_bounds.origin + point(x, y),
11254 size: size(em_width, line_height),
11255 })
11256 }
11257}
11258
11259trait SelectionExt {
11260 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11261 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
11262 -> Range<u32>;
11263}
11264
11265impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11266 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11267 let start = self
11268 .start
11269 .to_point(&map.buffer_snapshot)
11270 .to_display_point(map);
11271 let end = self
11272 .end
11273 .to_point(&map.buffer_snapshot)
11274 .to_display_point(map);
11275 if self.reversed {
11276 end..start
11277 } else {
11278 start..end
11279 }
11280 }
11281
11282 fn spanned_rows(
11283 &self,
11284 include_end_if_at_line_start: bool,
11285 map: &DisplaySnapshot,
11286 ) -> Range<u32> {
11287 let start = self.start.to_point(&map.buffer_snapshot);
11288 let mut end = self.end.to_point(&map.buffer_snapshot);
11289 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11290 end.row -= 1;
11291 }
11292
11293 let buffer_start = map.prev_line_boundary(start).0;
11294 let buffer_end = map.next_line_boundary(end).0;
11295 buffer_start.row..buffer_end.row + 1
11296 }
11297}
11298
11299impl<T: InvalidationRegion> InvalidationStack<T> {
11300 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11301 where
11302 S: Clone + ToOffset,
11303 {
11304 while let Some(region) = self.last() {
11305 let all_selections_inside_invalidation_ranges =
11306 if selections.len() == region.ranges().len() {
11307 selections
11308 .iter()
11309 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11310 .all(|(selection, invalidation_range)| {
11311 let head = selection.head().to_offset(buffer);
11312 invalidation_range.start <= head && invalidation_range.end >= head
11313 })
11314 } else {
11315 false
11316 };
11317
11318 if all_selections_inside_invalidation_ranges {
11319 break;
11320 } else {
11321 self.pop();
11322 }
11323 }
11324 }
11325}
11326
11327impl<T> Default for InvalidationStack<T> {
11328 fn default() -> Self {
11329 Self(Default::default())
11330 }
11331}
11332
11333impl<T> Deref for InvalidationStack<T> {
11334 type Target = Vec<T>;
11335
11336 fn deref(&self) -> &Self::Target {
11337 &self.0
11338 }
11339}
11340
11341impl<T> DerefMut for InvalidationStack<T> {
11342 fn deref_mut(&mut self) -> &mut Self::Target {
11343 &mut self.0
11344 }
11345}
11346
11347impl InvalidationRegion for SnippetState {
11348 fn ranges(&self) -> &[Range<Anchor>] {
11349 &self.ranges[self.active_index]
11350 }
11351}
11352
11353pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11354 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11355
11356 Box::new(move |cx: &mut BlockContext| {
11357 let group_id: SharedString = cx.block_id.to_string().into();
11358
11359 let mut text_style = cx.text_style().clone();
11360 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11361 let theme_settings = ThemeSettings::get_global(cx);
11362 text_style.font_family = theme_settings.buffer_font.family.clone();
11363 text_style.font_style = theme_settings.buffer_font.style;
11364 text_style.font_features = theme_settings.buffer_font.features.clone();
11365 text_style.font_weight = theme_settings.buffer_font.weight;
11366
11367 let multi_line_diagnostic = diagnostic.message.contains('\n');
11368
11369 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11370 if multi_line_diagnostic {
11371 v_flex()
11372 } else {
11373 h_flex()
11374 }
11375 .children(diagnostic.is_primary.then(|| {
11376 IconButton::new(("close-block", block_id), IconName::XCircle)
11377 .icon_color(Color::Muted)
11378 .size(ButtonSize::Compact)
11379 .style(ButtonStyle::Transparent)
11380 .visible_on_hover(group_id.clone())
11381 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11382 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11383 }))
11384 .child(
11385 IconButton::new(("copy-block", block_id), IconName::Copy)
11386 .icon_color(Color::Muted)
11387 .size(ButtonSize::Compact)
11388 .style(ButtonStyle::Transparent)
11389 .visible_on_hover(group_id.clone())
11390 .on_click({
11391 let message = diagnostic.message.clone();
11392 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11393 })
11394 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11395 )
11396 };
11397
11398 let icon_size = buttons(&diagnostic, cx.block_id)
11399 .into_any_element()
11400 .layout_as_root(AvailableSpace::min_size(), cx);
11401
11402 h_flex()
11403 .id(cx.block_id)
11404 .group(group_id.clone())
11405 .relative()
11406 .size_full()
11407 .pl(cx.gutter_dimensions.width)
11408 .w(cx.max_width + cx.gutter_dimensions.width)
11409 .child(
11410 div()
11411 .flex()
11412 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11413 .flex_shrink(),
11414 )
11415 .child(buttons(&diagnostic, cx.block_id))
11416 .child(div().flex().flex_shrink_0().child(
11417 StyledText::new(text_without_backticks.clone()).with_highlights(
11418 &text_style,
11419 code_ranges.iter().map(|range| {
11420 (
11421 range.clone(),
11422 HighlightStyle {
11423 font_weight: Some(FontWeight::BOLD),
11424 ..Default::default()
11425 },
11426 )
11427 }),
11428 ),
11429 ))
11430 .into_any_element()
11431 })
11432}
11433
11434pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11435 let mut text_without_backticks = String::new();
11436 let mut code_ranges = Vec::new();
11437
11438 if let Some(source) = &diagnostic.source {
11439 text_without_backticks.push_str(&source);
11440 code_ranges.push(0..source.len());
11441 text_without_backticks.push_str(": ");
11442 }
11443
11444 let mut prev_offset = 0;
11445 let mut in_code_block = false;
11446 for (ix, _) in diagnostic
11447 .message
11448 .match_indices('`')
11449 .chain([(diagnostic.message.len(), "")])
11450 {
11451 let prev_len = text_without_backticks.len();
11452 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11453 prev_offset = ix + 1;
11454 if in_code_block {
11455 code_ranges.push(prev_len..text_without_backticks.len());
11456 in_code_block = false;
11457 } else {
11458 in_code_block = true;
11459 }
11460 }
11461
11462 (text_without_backticks.into(), code_ranges)
11463}
11464
11465fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11466 match (severity, valid) {
11467 (DiagnosticSeverity::ERROR, true) => colors.error,
11468 (DiagnosticSeverity::ERROR, false) => colors.error,
11469 (DiagnosticSeverity::WARNING, true) => colors.warning,
11470 (DiagnosticSeverity::WARNING, false) => colors.warning,
11471 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11472 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11473 (DiagnosticSeverity::HINT, true) => colors.info,
11474 (DiagnosticSeverity::HINT, false) => colors.info,
11475 _ => colors.ignored,
11476 }
11477}
11478
11479pub fn styled_runs_for_code_label<'a>(
11480 label: &'a CodeLabel,
11481 syntax_theme: &'a theme::SyntaxTheme,
11482) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11483 let fade_out = HighlightStyle {
11484 fade_out: Some(0.35),
11485 ..Default::default()
11486 };
11487
11488 let mut prev_end = label.filter_range.end;
11489 label
11490 .runs
11491 .iter()
11492 .enumerate()
11493 .flat_map(move |(ix, (range, highlight_id))| {
11494 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11495 style
11496 } else {
11497 return Default::default();
11498 };
11499 let mut muted_style = style;
11500 muted_style.highlight(fade_out);
11501
11502 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11503 if range.start >= label.filter_range.end {
11504 if range.start > prev_end {
11505 runs.push((prev_end..range.start, fade_out));
11506 }
11507 runs.push((range.clone(), muted_style));
11508 } else if range.end <= label.filter_range.end {
11509 runs.push((range.clone(), style));
11510 } else {
11511 runs.push((range.start..label.filter_range.end, style));
11512 runs.push((label.filter_range.end..range.end, muted_style));
11513 }
11514 prev_end = cmp::max(prev_end, range.end);
11515
11516 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11517 runs.push((prev_end..label.text.len(), fade_out));
11518 }
11519
11520 runs
11521 })
11522}
11523
11524pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11525 let mut prev_index = 0;
11526 let mut prev_codepoint: Option<char> = None;
11527 text.char_indices()
11528 .chain([(text.len(), '\0')])
11529 .filter_map(move |(index, codepoint)| {
11530 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11531 let is_boundary = index == text.len()
11532 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11533 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11534 if is_boundary {
11535 let chunk = &text[prev_index..index];
11536 prev_index = index;
11537 Some(chunk)
11538 } else {
11539 None
11540 }
11541 })
11542}
11543
11544trait RangeToAnchorExt {
11545 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11546}
11547
11548impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11549 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11550 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11551 }
11552}