1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18pub mod display_map;
19mod editor_settings;
20mod element;
21mod hunk_diff;
22mod inlay_hint_cache;
23
24mod debounced_delay;
25mod git;
26mod highlight_matching_bracket;
27mod hover_links;
28mod hover_popover;
29mod inline_completion_provider;
30pub mod items;
31mod mouse_context_menu;
32pub mod movement;
33mod persistence;
34mod rust_analyzer_ext;
35pub mod scroll;
36mod selections_collection;
37pub mod tasks;
38
39#[cfg(test)]
40mod editor_tests;
41#[cfg(any(test, feature = "test-support"))]
42pub mod test;
43use ::git::diff::{DiffHunk, DiffHunkStatus};
44use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
45pub(crate) use actions::*;
46use aho_corasick::AhoCorasick;
47use anyhow::{anyhow, Context as _, Result};
48use blink_manager::BlinkManager;
49use client::{Collaborator, ParticipantIndex};
50use clock::ReplicaId;
51use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
52use convert_case::{Case, Casing};
53use debounced_delay::DebouncedDelay;
54pub use display_map::DisplayPoint;
55use display_map::*;
56pub use editor_settings::EditorSettings;
57use element::LineWithInvisibles;
58pub use element::{
59 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
60};
61use futures::FutureExt;
62use fuzzy::{StringMatch, StringMatchCandidate};
63use git::blame::GitBlame;
64use git::diff_hunk_to_display;
65use gpui::{
66 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
67 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
68 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
69 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
70 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
71 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
72 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
73};
74use highlight_matching_bracket::refresh_matching_bracket_highlights;
75use hover_popover::{hide_hover, HoverState};
76use hunk_diff::ExpandedHunks;
77pub(crate) use hunk_diff::HunkToExpand;
78use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
79pub use inline_completion_provider::*;
80pub use items::MAX_TAB_TITLE_LEN;
81use itertools::Itertools;
82use language::Runnable;
83use language::{
84 char_kind,
85 language_settings::{self, all_language_settings, InlayHintSettings},
86 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
87 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
88 Point, Selection, SelectionGoal, TransactionId,
89};
90use task::{ResolvedTask, TaskTemplate};
91
92use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
93use lsp::{DiagnosticSeverity, LanguageServerId};
94use mouse_context_menu::MouseContextMenu;
95use movement::TextLayoutDetails;
96use multi_buffer::ToOffsetUtf16;
97pub use multi_buffer::{
98 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
99 ToPoint,
100};
101use ordered_float::OrderedFloat;
102use parking_lot::{Mutex, RwLock};
103use project::project_settings::{GitGutterSetting, ProjectSettings};
104use project::{
105 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
106 ProjectTransaction, TaskSourceKind, WorktreeId,
107};
108use rand::prelude::*;
109use rpc::{proto::*, ErrorExt};
110use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
111use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
112use serde::{Deserialize, Serialize};
113use settings::{Settings, SettingsStore};
114use smallvec::SmallVec;
115use snippet::Snippet;
116use std::ops::Not as _;
117use std::{
118 any::TypeId,
119 borrow::Cow,
120 cmp::{self, Ordering, Reverse},
121 mem,
122 num::NonZeroU32,
123 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
124 path::Path,
125 sync::Arc,
126 time::{Duration, Instant},
127};
128pub use sum_tree::Bias;
129use sum_tree::TreeMap;
130use text::{BufferId, OffsetUtf16, Rope};
131use theme::{
132 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
133 ThemeColors, ThemeSettings,
134};
135use ui::{
136 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
137 Tooltip,
138};
139use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
140use workspace::item::{ItemHandle, PreviewTabsSettings};
141use workspace::notifications::{DetachAndPromptErr, NotificationId};
142use workspace::{
143 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
144};
145use workspace::{OpenInTerminal, OpenTerminal, Toast};
146
147use crate::hover_links::find_url;
148
149pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
150const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
151const MAX_LINE_LEN: usize = 1024;
152const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
153const MAX_SELECTION_HISTORY_LEN: usize = 1024;
154pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
155#[doc(hidden)]
156pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
157#[doc(hidden)]
158pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
159
160pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
161
162pub fn render_parsed_markdown(
163 element_id: impl Into<ElementId>,
164 parsed: &language::ParsedMarkdown,
165 editor_style: &EditorStyle,
166 workspace: Option<WeakView<Workspace>>,
167 cx: &mut WindowContext,
168) -> InteractiveText {
169 let code_span_background_color = cx
170 .theme()
171 .colors()
172 .editor_document_highlight_read_background;
173
174 let highlights = gpui::combine_highlights(
175 parsed.highlights.iter().filter_map(|(range, highlight)| {
176 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
177 Some((range.clone(), highlight))
178 }),
179 parsed
180 .regions
181 .iter()
182 .zip(&parsed.region_ranges)
183 .filter_map(|(region, range)| {
184 if region.code {
185 Some((
186 range.clone(),
187 HighlightStyle {
188 background_color: Some(code_span_background_color),
189 ..Default::default()
190 },
191 ))
192 } else {
193 None
194 }
195 }),
196 );
197
198 let mut links = Vec::new();
199 let mut link_ranges = Vec::new();
200 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
201 if let Some(link) = region.link.clone() {
202 links.push(link);
203 link_ranges.push(range.clone());
204 }
205 }
206
207 InteractiveText::new(
208 element_id,
209 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
210 )
211 .on_click(link_ranges, move |clicked_range_ix, cx| {
212 match &links[clicked_range_ix] {
213 markdown::Link::Web { url } => cx.open_url(url),
214 markdown::Link::Path { path } => {
215 if let Some(workspace) = &workspace {
216 _ = workspace.update(cx, |workspace, cx| {
217 workspace.open_abs_path(path.clone(), false, cx).detach();
218 });
219 }
220 }
221 }
222 })
223}
224
225#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
226pub(crate) enum InlayId {
227 Suggestion(usize),
228 Hint(usize),
229}
230
231impl InlayId {
232 fn id(&self) -> usize {
233 match self {
234 Self::Suggestion(id) => *id,
235 Self::Hint(id) => *id,
236 }
237 }
238}
239
240enum DiffRowHighlight {}
241enum DocumentHighlightRead {}
242enum DocumentHighlightWrite {}
243enum InputComposition {}
244
245#[derive(Copy, Clone, PartialEq, Eq)]
246pub enum Direction {
247 Prev,
248 Next,
249}
250
251pub fn init_settings(cx: &mut AppContext) {
252 EditorSettings::register(cx);
253}
254
255pub fn init(cx: &mut AppContext) {
256 init_settings(cx);
257
258 workspace::register_project_item::<Editor>(cx);
259 workspace::register_followable_item::<Editor>(cx);
260 workspace::register_deserializable_item::<Editor>(cx);
261 cx.observe_new_views(
262 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
263 workspace.register_action(Editor::new_file);
264 workspace.register_action(Editor::new_file_in_direction);
265 },
266 )
267 .detach();
268
269 cx.on_action(move |_: &workspace::NewFile, cx| {
270 let app_state = workspace::AppState::global(cx);
271 if let Some(app_state) = app_state.upgrade() {
272 workspace::open_new(app_state, cx, |workspace, cx| {
273 Editor::new_file(workspace, &Default::default(), cx)
274 })
275 .detach();
276 }
277 });
278 cx.on_action(move |_: &workspace::NewWindow, cx| {
279 let app_state = workspace::AppState::global(cx);
280 if let Some(app_state) = app_state.upgrade() {
281 workspace::open_new(app_state, cx, |workspace, cx| {
282 Editor::new_file(workspace, &Default::default(), cx)
283 })
284 .detach();
285 }
286 });
287}
288
289pub struct SearchWithinRange;
290
291trait InvalidationRegion {
292 fn ranges(&self) -> &[Range<Anchor>];
293}
294
295#[derive(Clone, Debug, PartialEq)]
296pub enum SelectPhase {
297 Begin {
298 position: DisplayPoint,
299 add: bool,
300 click_count: usize,
301 },
302 BeginColumnar {
303 position: DisplayPoint,
304 goal_column: u32,
305 },
306 Extend {
307 position: DisplayPoint,
308 click_count: usize,
309 },
310 Update {
311 position: DisplayPoint,
312 goal_column: u32,
313 scroll_delta: gpui::Point<f32>,
314 },
315 End,
316}
317
318#[derive(Clone, Debug)]
319pub enum SelectMode {
320 Character,
321 Word(Range<Anchor>),
322 Line(Range<Anchor>),
323 All,
324}
325
326#[derive(Copy, Clone, PartialEq, Eq, Debug)]
327pub enum EditorMode {
328 SingleLine,
329 AutoHeight { max_lines: usize },
330 Full,
331}
332
333#[derive(Clone, Debug)]
334pub enum SoftWrap {
335 None,
336 PreferLine,
337 EditorWidth,
338 Column(u32),
339}
340
341#[derive(Clone)]
342pub struct EditorStyle {
343 pub background: Hsla,
344 pub local_player: PlayerColor,
345 pub text: TextStyle,
346 pub scrollbar_width: Pixels,
347 pub syntax: Arc<SyntaxTheme>,
348 pub status: StatusColors,
349 pub inlay_hints_style: HighlightStyle,
350 pub suggestions_style: HighlightStyle,
351}
352
353impl Default for EditorStyle {
354 fn default() -> Self {
355 Self {
356 background: Hsla::default(),
357 local_player: PlayerColor::default(),
358 text: TextStyle::default(),
359 scrollbar_width: Pixels::default(),
360 syntax: Default::default(),
361 // HACK: Status colors don't have a real default.
362 // We should look into removing the status colors from the editor
363 // style and retrieve them directly from the theme.
364 status: StatusColors::dark(),
365 inlay_hints_style: HighlightStyle::default(),
366 suggestions_style: HighlightStyle::default(),
367 }
368 }
369}
370
371type CompletionId = usize;
372
373// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
374// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
375
376type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
377
378struct ScrollbarMarkerState {
379 scrollbar_size: Size<Pixels>,
380 dirty: bool,
381 markers: Arc<[PaintQuad]>,
382 pending_refresh: Option<Task<Result<()>>>,
383}
384
385impl ScrollbarMarkerState {
386 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
387 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
388 }
389}
390
391impl Default for ScrollbarMarkerState {
392 fn default() -> Self {
393 Self {
394 scrollbar_size: Size::default(),
395 dirty: false,
396 markers: Arc::from([]),
397 pending_refresh: None,
398 }
399 }
400}
401
402#[derive(Clone, Debug)]
403struct RunnableTasks {
404 templates: Vec<(TaskSourceKind, TaskTemplate)>,
405 // We need the column at which the task context evaluation should take place.
406 column: u32,
407}
408
409#[derive(Clone)]
410struct ResolvedTasks {
411 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
412 position: text::Point,
413}
414
415/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
416///
417/// See the [module level documentation](self) for more information.
418pub struct Editor {
419 focus_handle: FocusHandle,
420 /// The text buffer being edited
421 buffer: Model<MultiBuffer>,
422 /// Map of how text in the buffer should be displayed.
423 /// Handles soft wraps, folds, fake inlay text insertions, etc.
424 pub display_map: Model<DisplayMap>,
425 pub selections: SelectionsCollection,
426 pub scroll_manager: ScrollManager,
427 columnar_selection_tail: Option<Anchor>,
428 add_selections_state: Option<AddSelectionsState>,
429 select_next_state: Option<SelectNextState>,
430 select_prev_state: Option<SelectNextState>,
431 selection_history: SelectionHistory,
432 autoclose_regions: Vec<AutocloseRegion>,
433 snippet_stack: InvalidationStack<SnippetState>,
434 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
435 ime_transaction: Option<TransactionId>,
436 active_diagnostics: Option<ActiveDiagnosticGroup>,
437 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
438 project: Option<Model<Project>>,
439 completion_provider: Option<Box<dyn CompletionProvider>>,
440 collaboration_hub: Option<Box<dyn CollaborationHub>>,
441 blink_manager: Model<BlinkManager>,
442 show_cursor_names: bool,
443 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
444 pub show_local_selections: bool,
445 mode: EditorMode,
446 show_breadcrumbs: bool,
447 show_gutter: bool,
448 show_wrap_guides: Option<bool>,
449 placeholder_text: Option<Arc<str>>,
450 highlight_order: usize,
451 highlighted_rows: HashMap<TypeId, Vec<(usize, Range<Anchor>, Hsla)>>,
452 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
453 scrollbar_marker_state: ScrollbarMarkerState,
454 nav_history: Option<ItemNavHistory>,
455 context_menu: RwLock<Option<ContextMenu>>,
456 mouse_context_menu: Option<MouseContextMenu>,
457 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
458 find_all_references_task_sources: Vec<Anchor>,
459 next_completion_id: CompletionId,
460 completion_documentation_pre_resolve_debounce: DebouncedDelay,
461 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
462 code_actions_task: Option<Task<()>>,
463 document_highlights_task: Option<Task<()>>,
464 pending_rename: Option<RenameState>,
465 searchable: bool,
466 cursor_shape: CursorShape,
467 collapse_matches: bool,
468 autoindent_mode: Option<AutoindentMode>,
469 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
470 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
471 input_enabled: bool,
472 use_modal_editing: bool,
473 read_only: bool,
474 leader_peer_id: Option<PeerId>,
475 remote_id: Option<ViewId>,
476 hover_state: HoverState,
477 gutter_hovered: bool,
478 hovered_link_state: Option<HoveredLinkState>,
479 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
480 active_inline_completion: Option<Inlay>,
481 show_inline_completions: bool,
482 inlay_hint_cache: InlayHintCache,
483 expanded_hunks: ExpandedHunks,
484 next_inlay_id: usize,
485 _subscriptions: Vec<Subscription>,
486 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
487 gutter_dimensions: GutterDimensions,
488 pub vim_replace_map: HashMap<Range<usize>, String>,
489 style: Option<EditorStyle>,
490 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
491 use_autoclose: bool,
492 auto_replace_emoji_shortcode: bool,
493 show_git_blame_gutter: bool,
494 show_git_blame_inline: bool,
495 show_git_blame_inline_delay_task: Option<Task<()>>,
496 git_blame_inline_enabled: bool,
497 blame: Option<Model<GitBlame>>,
498 blame_subscription: Option<Subscription>,
499 custom_context_menu: Option<
500 Box<
501 dyn 'static
502 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
503 >,
504 >,
505 last_bounds: Option<Bounds<Pixels>>,
506 expect_bounds_change: Option<Bounds<Pixels>>,
507 tasks: HashMap<(BufferId, u32), (usize, 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 let snapshot = self.snapshot(cx);
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 display_row = action
3855 .deployed_from_indicator
3856 .map(|row| {
3857 DisplayPoint::new(row, 0)
3858 .to_point(&snapshot.display_snapshot)
3859 .row
3860 })
3861 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head().row);
3862 let (buffer, buffer_row) = snapshot
3863 .buffer_snapshot
3864 .buffer_line_for_row(display_row)
3865 .and_then(|(buffer_snapshot, range)| {
3866 this.buffer
3867 .read(cx)
3868 .buffer(buffer_snapshot.remote_id())
3869 .map(|buffer| (buffer, range.start.row))
3870 })?;
3871 let (_, code_actions) = this
3872 .available_code_actions
3873 .clone()
3874 .and_then(|(location, code_actions)| {
3875 let snapshot = location.buffer.read(cx).snapshot();
3876 let point_range = location.range.to_point(&snapshot);
3877 let point_range = point_range.start.row..=point_range.end.row;
3878 if point_range.contains(&buffer_row) {
3879 Some((location, code_actions))
3880 } else {
3881 None
3882 }
3883 })
3884 .unzip();
3885 let buffer_id = buffer.read(cx).remote_id();
3886 let tasks = this
3887 .tasks
3888 .get(&(buffer_id, buffer_row))
3889 .map(|t| Arc::new(t.to_owned()));
3890 if tasks.is_none() && code_actions.is_none() {
3891 return None;
3892 }
3893
3894 this.completion_tasks.clear();
3895 this.discard_inline_completion(cx);
3896 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3897 |(tasks, (workspace, _))| {
3898 let position = Point::new(buffer_row, tasks.1.column);
3899 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3900 let location = Location {
3901 buffer: buffer.clone(),
3902 range: range_start..range_start,
3903 };
3904 workspace
3905 .update(cx, |workspace, cx| {
3906 tasks::task_context_for_location(workspace, location, cx)
3907 })
3908 .ok()
3909 .flatten()
3910 },
3911 );
3912 let tasks = tasks
3913 .zip(task_context.as_ref())
3914 .map(|(tasks, task_context)| {
3915 Arc::new(ResolvedTasks {
3916 templates: tasks
3917 .1
3918 .templates
3919 .iter()
3920 .filter_map(|(kind, template)| {
3921 template
3922 .resolve_task(&kind.to_id_base(), &task_context)
3923 .map(|task| (kind.clone(), task))
3924 })
3925 .collect(),
3926 position: Point::new(buffer_row, tasks.1.column),
3927 })
3928 });
3929 let spawn_straight_away = tasks
3930 .as_ref()
3931 .map_or(false, |tasks| tasks.templates.len() == 1)
3932 && code_actions
3933 .as_ref()
3934 .map_or(true, |actions| actions.is_empty());
3935 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3936 buffer,
3937 actions: CodeActionContents {
3938 tasks,
3939 actions: code_actions,
3940 },
3941 selected_item: Default::default(),
3942 scroll_handle: UniformListScrollHandle::default(),
3943 deployed_from_indicator,
3944 }));
3945 if spawn_straight_away {
3946 if let Some(task) =
3947 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3948 {
3949 cx.notify();
3950 return Some(task);
3951 }
3952 }
3953 cx.notify();
3954 }
3955 Some(Task::ready(Ok(())))
3956 })?;
3957 if let Some(task) = spawned_test_task {
3958 task.await?;
3959 }
3960
3961 Ok::<_, anyhow::Error>(())
3962 })
3963 .detach_and_log_err(cx);
3964 }
3965
3966 pub fn confirm_code_action(
3967 &mut self,
3968 action: &ConfirmCodeAction,
3969 cx: &mut ViewContext<Self>,
3970 ) -> Option<Task<Result<()>>> {
3971 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3972 menu
3973 } else {
3974 return None;
3975 };
3976 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3977 let action = actions_menu.actions.get(action_ix)?;
3978 let title = action.label();
3979 let buffer = actions_menu.buffer;
3980 let workspace = self.workspace()?;
3981
3982 match action {
3983 CodeActionsItem::Task(task_source_kind, resolved_task) => {
3984 workspace.update(cx, |workspace, cx| {
3985 workspace::tasks::schedule_resolved_task(
3986 workspace,
3987 task_source_kind,
3988 resolved_task,
3989 false,
3990 cx,
3991 );
3992
3993 Some(Task::ready(Ok(())))
3994 })
3995 }
3996 CodeActionsItem::CodeAction(action) => {
3997 let apply_code_actions = workspace
3998 .read(cx)
3999 .project()
4000 .clone()
4001 .update(cx, |project, cx| {
4002 project.apply_code_action(buffer, action, true, cx)
4003 });
4004 let workspace = workspace.downgrade();
4005 Some(cx.spawn(|editor, cx| async move {
4006 let project_transaction = apply_code_actions.await?;
4007 Self::open_project_transaction(
4008 &editor,
4009 workspace,
4010 project_transaction,
4011 title,
4012 cx,
4013 )
4014 .await
4015 }))
4016 }
4017 }
4018 }
4019
4020 async fn open_project_transaction(
4021 this: &WeakView<Editor>,
4022 workspace: WeakView<Workspace>,
4023 transaction: ProjectTransaction,
4024 title: String,
4025 mut cx: AsyncWindowContext,
4026 ) -> Result<()> {
4027 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4028
4029 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4030 cx.update(|cx| {
4031 entries.sort_unstable_by_key(|(buffer, _)| {
4032 buffer.read(cx).file().map(|f| f.path().clone())
4033 });
4034 })?;
4035
4036 // If the project transaction's edits are all contained within this editor, then
4037 // avoid opening a new editor to display them.
4038
4039 if let Some((buffer, transaction)) = entries.first() {
4040 if entries.len() == 1 {
4041 let excerpt = this.update(&mut cx, |editor, cx| {
4042 editor
4043 .buffer()
4044 .read(cx)
4045 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4046 })?;
4047 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4048 if excerpted_buffer == *buffer {
4049 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4050 let excerpt_range = excerpt_range.to_offset(buffer);
4051 buffer
4052 .edited_ranges_for_transaction::<usize>(transaction)
4053 .all(|range| {
4054 excerpt_range.start <= range.start
4055 && excerpt_range.end >= range.end
4056 })
4057 })?;
4058
4059 if all_edits_within_excerpt {
4060 return Ok(());
4061 }
4062 }
4063 }
4064 }
4065 } else {
4066 return Ok(());
4067 }
4068
4069 let mut ranges_to_highlight = Vec::new();
4070 let excerpt_buffer = cx.new_model(|cx| {
4071 let mut multibuffer =
4072 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4073 for (buffer_handle, transaction) in &entries {
4074 let buffer = buffer_handle.read(cx);
4075 ranges_to_highlight.extend(
4076 multibuffer.push_excerpts_with_context_lines(
4077 buffer_handle.clone(),
4078 buffer
4079 .edited_ranges_for_transaction::<usize>(transaction)
4080 .collect(),
4081 DEFAULT_MULTIBUFFER_CONTEXT,
4082 cx,
4083 ),
4084 );
4085 }
4086 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4087 multibuffer
4088 })?;
4089
4090 workspace.update(&mut cx, |workspace, cx| {
4091 let project = workspace.project().clone();
4092 let editor =
4093 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4094 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4095 editor.update(cx, |editor, cx| {
4096 editor.highlight_background::<Self>(
4097 &ranges_to_highlight,
4098 |theme| theme.editor_highlighted_line_background,
4099 cx,
4100 );
4101 });
4102 })?;
4103
4104 Ok(())
4105 }
4106
4107 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4108 let project = self.project.clone()?;
4109 let buffer = self.buffer.read(cx);
4110 let newest_selection = self.selections.newest_anchor().clone();
4111 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4112 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4113 if start_buffer != end_buffer {
4114 return None;
4115 }
4116
4117 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4118 cx.background_executor()
4119 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4120 .await;
4121
4122 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4123 project.code_actions(&start_buffer, start..end, cx)
4124 }) {
4125 code_actions.await
4126 } else {
4127 Vec::new()
4128 };
4129
4130 this.update(&mut cx, |this, cx| {
4131 this.available_code_actions = if actions.is_empty() {
4132 None
4133 } else {
4134 Some((
4135 Location {
4136 buffer: start_buffer,
4137 range: start..end,
4138 },
4139 actions.into(),
4140 ))
4141 };
4142 cx.notify();
4143 })
4144 .log_err();
4145 }));
4146 None
4147 }
4148
4149 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4150 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4151 self.show_git_blame_inline = false;
4152
4153 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4154 cx.background_executor().timer(delay).await;
4155
4156 this.update(&mut cx, |this, cx| {
4157 this.show_git_blame_inline = true;
4158 cx.notify();
4159 })
4160 .log_err();
4161 }));
4162 }
4163 }
4164
4165 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4166 if self.pending_rename.is_some() {
4167 return None;
4168 }
4169
4170 let project = self.project.clone()?;
4171 let buffer = self.buffer.read(cx);
4172 let newest_selection = self.selections.newest_anchor().clone();
4173 let cursor_position = newest_selection.head();
4174 let (cursor_buffer, cursor_buffer_position) =
4175 buffer.text_anchor_for_position(cursor_position, cx)?;
4176 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4177 if cursor_buffer != tail_buffer {
4178 return None;
4179 }
4180
4181 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4182 cx.background_executor()
4183 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4184 .await;
4185
4186 let highlights = if let Some(highlights) = project
4187 .update(&mut cx, |project, cx| {
4188 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4189 })
4190 .log_err()
4191 {
4192 highlights.await.log_err()
4193 } else {
4194 None
4195 };
4196
4197 if let Some(highlights) = highlights {
4198 this.update(&mut cx, |this, cx| {
4199 if this.pending_rename.is_some() {
4200 return;
4201 }
4202
4203 let buffer_id = cursor_position.buffer_id;
4204 let buffer = this.buffer.read(cx);
4205 if !buffer
4206 .text_anchor_for_position(cursor_position, cx)
4207 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4208 {
4209 return;
4210 }
4211
4212 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4213 let mut write_ranges = Vec::new();
4214 let mut read_ranges = Vec::new();
4215 for highlight in highlights {
4216 for (excerpt_id, excerpt_range) in
4217 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4218 {
4219 let start = highlight
4220 .range
4221 .start
4222 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4223 let end = highlight
4224 .range
4225 .end
4226 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4227 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4228 continue;
4229 }
4230
4231 let range = Anchor {
4232 buffer_id,
4233 excerpt_id: excerpt_id,
4234 text_anchor: start,
4235 }..Anchor {
4236 buffer_id,
4237 excerpt_id,
4238 text_anchor: end,
4239 };
4240 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4241 write_ranges.push(range);
4242 } else {
4243 read_ranges.push(range);
4244 }
4245 }
4246 }
4247
4248 this.highlight_background::<DocumentHighlightRead>(
4249 &read_ranges,
4250 |theme| theme.editor_document_highlight_read_background,
4251 cx,
4252 );
4253 this.highlight_background::<DocumentHighlightWrite>(
4254 &write_ranges,
4255 |theme| theme.editor_document_highlight_write_background,
4256 cx,
4257 );
4258 cx.notify();
4259 })
4260 .log_err();
4261 }
4262 }));
4263 None
4264 }
4265
4266 fn refresh_inline_completion(
4267 &mut self,
4268 debounce: bool,
4269 cx: &mut ViewContext<Self>,
4270 ) -> Option<()> {
4271 let provider = self.inline_completion_provider()?;
4272 let cursor = self.selections.newest_anchor().head();
4273 let (buffer, cursor_buffer_position) =
4274 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4275 if !self.show_inline_completions
4276 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4277 {
4278 self.discard_inline_completion(cx);
4279 return None;
4280 }
4281
4282 self.update_visible_inline_completion(cx);
4283 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4284 Some(())
4285 }
4286
4287 fn cycle_inline_completion(
4288 &mut self,
4289 direction: Direction,
4290 cx: &mut ViewContext<Self>,
4291 ) -> Option<()> {
4292 let provider = self.inline_completion_provider()?;
4293 let cursor = self.selections.newest_anchor().head();
4294 let (buffer, cursor_buffer_position) =
4295 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4296 if !self.show_inline_completions
4297 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4298 {
4299 return None;
4300 }
4301
4302 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4303 self.update_visible_inline_completion(cx);
4304
4305 Some(())
4306 }
4307
4308 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4309 if !self.has_active_inline_completion(cx) {
4310 self.refresh_inline_completion(false, cx);
4311 return;
4312 }
4313
4314 self.update_visible_inline_completion(cx);
4315 }
4316
4317 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4318 self.show_cursor_names(cx);
4319 }
4320
4321 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4322 self.show_cursor_names = true;
4323 cx.notify();
4324 cx.spawn(|this, mut cx| async move {
4325 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4326 this.update(&mut cx, |this, cx| {
4327 this.show_cursor_names = false;
4328 cx.notify()
4329 })
4330 .ok()
4331 })
4332 .detach();
4333 }
4334
4335 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4336 if self.has_active_inline_completion(cx) {
4337 self.cycle_inline_completion(Direction::Next, cx);
4338 } else {
4339 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4340 if is_copilot_disabled {
4341 cx.propagate();
4342 }
4343 }
4344 }
4345
4346 pub fn previous_inline_completion(
4347 &mut self,
4348 _: &PreviousInlineCompletion,
4349 cx: &mut ViewContext<Self>,
4350 ) {
4351 if self.has_active_inline_completion(cx) {
4352 self.cycle_inline_completion(Direction::Prev, cx);
4353 } else {
4354 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4355 if is_copilot_disabled {
4356 cx.propagate();
4357 }
4358 }
4359 }
4360
4361 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4362 if let Some(completion) = self.take_active_inline_completion(cx) {
4363 if let Some(provider) = self.inline_completion_provider() {
4364 provider.accept(cx);
4365 }
4366
4367 cx.emit(EditorEvent::InputHandled {
4368 utf16_range_to_replace: None,
4369 text: completion.text.to_string().into(),
4370 });
4371 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4372 self.refresh_inline_completion(true, cx);
4373 cx.notify();
4374 true
4375 } else {
4376 false
4377 }
4378 }
4379
4380 pub fn accept_partial_inline_completion(
4381 &mut self,
4382 _: &AcceptPartialInlineCompletion,
4383 cx: &mut ViewContext<Self>,
4384 ) {
4385 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4386 if let Some(completion) = self.take_active_inline_completion(cx) {
4387 let mut partial_completion = completion
4388 .text
4389 .chars()
4390 .by_ref()
4391 .take_while(|c| c.is_alphabetic())
4392 .collect::<String>();
4393 if partial_completion.is_empty() {
4394 partial_completion = completion
4395 .text
4396 .chars()
4397 .by_ref()
4398 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4399 .collect::<String>();
4400 }
4401
4402 cx.emit(EditorEvent::InputHandled {
4403 utf16_range_to_replace: None,
4404 text: partial_completion.clone().into(),
4405 });
4406 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4407 self.refresh_inline_completion(true, cx);
4408 cx.notify();
4409 }
4410 }
4411 }
4412
4413 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4414 if let Some(provider) = self.inline_completion_provider() {
4415 provider.discard(cx);
4416 }
4417
4418 self.take_active_inline_completion(cx).is_some()
4419 }
4420
4421 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4422 if let Some(completion) = self.active_inline_completion.as_ref() {
4423 let buffer = self.buffer.read(cx).read(cx);
4424 completion.position.is_valid(&buffer)
4425 } else {
4426 false
4427 }
4428 }
4429
4430 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4431 let completion = self.active_inline_completion.take()?;
4432 self.display_map.update(cx, |map, cx| {
4433 map.splice_inlays(vec![completion.id], Default::default(), cx);
4434 });
4435 let buffer = self.buffer.read(cx).read(cx);
4436
4437 if completion.position.is_valid(&buffer) {
4438 Some(completion)
4439 } else {
4440 None
4441 }
4442 }
4443
4444 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4445 let selection = self.selections.newest_anchor();
4446 let cursor = selection.head();
4447
4448 if self.context_menu.read().is_none()
4449 && self.completion_tasks.is_empty()
4450 && selection.start == selection.end
4451 {
4452 if let Some(provider) = self.inline_completion_provider() {
4453 if let Some((buffer, cursor_buffer_position)) =
4454 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4455 {
4456 if let Some(text) =
4457 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4458 {
4459 let text = Rope::from(text);
4460 let mut to_remove = Vec::new();
4461 if let Some(completion) = self.active_inline_completion.take() {
4462 to_remove.push(completion.id);
4463 }
4464
4465 let completion_inlay =
4466 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4467 self.active_inline_completion = Some(completion_inlay.clone());
4468 self.display_map.update(cx, move |map, cx| {
4469 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4470 });
4471 cx.notify();
4472 return;
4473 }
4474 }
4475 }
4476 }
4477
4478 self.discard_inline_completion(cx);
4479 }
4480
4481 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4482 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4483 }
4484
4485 fn render_code_actions_indicator(
4486 &self,
4487 _style: &EditorStyle,
4488 row: u32,
4489 is_active: bool,
4490 cx: &mut ViewContext<Self>,
4491 ) -> Option<IconButton> {
4492 if self.available_code_actions.is_some() {
4493 Some(
4494 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4495 .icon_size(IconSize::XSmall)
4496 .size(ui::ButtonSize::None)
4497 .icon_color(Color::Muted)
4498 .selected(is_active)
4499 .on_click(cx.listener(move |editor, _e, cx| {
4500 editor.toggle_code_actions(
4501 &ToggleCodeActions {
4502 deployed_from_indicator: Some(row),
4503 },
4504 cx,
4505 );
4506 })),
4507 )
4508 } else {
4509 None
4510 }
4511 }
4512
4513 fn clear_tasks(&mut self) {
4514 self.tasks.clear()
4515 }
4516
4517 fn insert_tasks(&mut self, key: (BufferId, u32), value: (usize, RunnableTasks)) {
4518 if let Some(_) = self.tasks.insert(key, value) {
4519 // This case should hopefully be rare, but just in case...
4520 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4521 }
4522 }
4523
4524 fn render_run_indicator(
4525 &self,
4526 _style: &EditorStyle,
4527 is_active: bool,
4528 row: u32,
4529 cx: &mut ViewContext<Self>,
4530 ) -> IconButton {
4531 IconButton::new("code_actions_indicator", ui::IconName::Play)
4532 .icon_size(IconSize::XSmall)
4533 .size(ui::ButtonSize::None)
4534 .icon_color(Color::Muted)
4535 .selected(is_active)
4536 .on_click(cx.listener(move |editor, _e, cx| {
4537 editor.toggle_code_actions(
4538 &ToggleCodeActions {
4539 deployed_from_indicator: Some(row),
4540 },
4541 cx,
4542 );
4543 }))
4544 }
4545
4546 pub fn render_fold_indicators(
4547 &mut self,
4548 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4549 _style: &EditorStyle,
4550 gutter_hovered: bool,
4551 _line_height: Pixels,
4552 _gutter_margin: Pixels,
4553 cx: &mut ViewContext<Self>,
4554 ) -> Vec<Option<AnyElement>> {
4555 fold_data
4556 .iter()
4557 .enumerate()
4558 .map(|(ix, fold_data)| {
4559 fold_data
4560 .map(|(fold_status, buffer_row, active)| {
4561 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4562 IconButton::new(ix, ui::IconName::ChevronDown)
4563 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4564 FoldStatus::Folded => {
4565 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4566 }
4567 FoldStatus::Foldable => {
4568 this.fold_at(&FoldAt { buffer_row }, cx);
4569 }
4570 }))
4571 .icon_color(ui::Color::Muted)
4572 .icon_size(ui::IconSize::Small)
4573 .selected(fold_status == FoldStatus::Folded)
4574 .selected_icon(ui::IconName::ChevronRight)
4575 .size(ui::ButtonSize::None)
4576 .into_any_element()
4577 })
4578 })
4579 .flatten()
4580 })
4581 .collect()
4582 }
4583
4584 pub fn context_menu_visible(&self) -> bool {
4585 self.context_menu
4586 .read()
4587 .as_ref()
4588 .map_or(false, |menu| menu.visible())
4589 }
4590
4591 fn render_context_menu(
4592 &self,
4593 cursor_position: DisplayPoint,
4594 style: &EditorStyle,
4595 max_height: Pixels,
4596 cx: &mut ViewContext<Editor>,
4597 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4598 self.context_menu.read().as_ref().map(|menu| {
4599 menu.render(
4600 cursor_position,
4601 style,
4602 max_height,
4603 self.workspace.as_ref().map(|(w, _)| w.clone()),
4604 cx,
4605 )
4606 })
4607 }
4608
4609 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4610 cx.notify();
4611 self.completion_tasks.clear();
4612 let context_menu = self.context_menu.write().take();
4613 if context_menu.is_some() {
4614 self.update_visible_inline_completion(cx);
4615 }
4616 context_menu
4617 }
4618
4619 pub fn insert_snippet(
4620 &mut self,
4621 insertion_ranges: &[Range<usize>],
4622 snippet: Snippet,
4623 cx: &mut ViewContext<Self>,
4624 ) -> Result<()> {
4625 let tabstops = self.buffer.update(cx, |buffer, cx| {
4626 let snippet_text: Arc<str> = snippet.text.clone().into();
4627 buffer.edit(
4628 insertion_ranges
4629 .iter()
4630 .cloned()
4631 .map(|range| (range, snippet_text.clone())),
4632 Some(AutoindentMode::EachLine),
4633 cx,
4634 );
4635
4636 let snapshot = &*buffer.read(cx);
4637 let snippet = &snippet;
4638 snippet
4639 .tabstops
4640 .iter()
4641 .map(|tabstop| {
4642 let mut tabstop_ranges = tabstop
4643 .iter()
4644 .flat_map(|tabstop_range| {
4645 let mut delta = 0_isize;
4646 insertion_ranges.iter().map(move |insertion_range| {
4647 let insertion_start = insertion_range.start as isize + delta;
4648 delta +=
4649 snippet.text.len() as isize - insertion_range.len() as isize;
4650
4651 let start = snapshot.anchor_before(
4652 (insertion_start + tabstop_range.start) as usize,
4653 );
4654 let end = snapshot
4655 .anchor_after((insertion_start + tabstop_range.end) as usize);
4656 start..end
4657 })
4658 })
4659 .collect::<Vec<_>>();
4660 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4661 tabstop_ranges
4662 })
4663 .collect::<Vec<_>>()
4664 });
4665
4666 if let Some(tabstop) = tabstops.first() {
4667 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4668 s.select_ranges(tabstop.iter().cloned());
4669 });
4670 self.snippet_stack.push(SnippetState {
4671 active_index: 0,
4672 ranges: tabstops,
4673 });
4674
4675 // Check whether the just-entered snippet ends with an auto-closable bracket.
4676 if self.autoclose_regions.is_empty() {
4677 let snapshot = self.buffer.read(cx).snapshot(cx);
4678 for selection in &mut self.selections.all::<Point>(cx) {
4679 let selection_head = selection.head();
4680 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4681 continue;
4682 };
4683
4684 let mut bracket_pair = None;
4685 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4686 let prev_chars = snapshot
4687 .reversed_chars_at(selection_head)
4688 .collect::<String>();
4689 for (pair, enabled) in scope.brackets() {
4690 if enabled
4691 && pair.close
4692 && prev_chars.starts_with(pair.start.as_str())
4693 && next_chars.starts_with(pair.end.as_str())
4694 {
4695 bracket_pair = Some(pair.clone());
4696 break;
4697 }
4698 }
4699 if let Some(pair) = bracket_pair {
4700 let start = snapshot.anchor_after(selection_head);
4701 let end = snapshot.anchor_after(selection_head);
4702 self.autoclose_regions.push(AutocloseRegion {
4703 selection_id: selection.id,
4704 range: start..end,
4705 pair,
4706 });
4707 }
4708 }
4709 }
4710 }
4711 Ok(())
4712 }
4713
4714 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4715 self.move_to_snippet_tabstop(Bias::Right, cx)
4716 }
4717
4718 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4719 self.move_to_snippet_tabstop(Bias::Left, cx)
4720 }
4721
4722 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4723 if let Some(mut snippet) = self.snippet_stack.pop() {
4724 match bias {
4725 Bias::Left => {
4726 if snippet.active_index > 0 {
4727 snippet.active_index -= 1;
4728 } else {
4729 self.snippet_stack.push(snippet);
4730 return false;
4731 }
4732 }
4733 Bias::Right => {
4734 if snippet.active_index + 1 < snippet.ranges.len() {
4735 snippet.active_index += 1;
4736 } else {
4737 self.snippet_stack.push(snippet);
4738 return false;
4739 }
4740 }
4741 }
4742 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4743 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4744 s.select_anchor_ranges(current_ranges.iter().cloned())
4745 });
4746 // If snippet state is not at the last tabstop, push it back on the stack
4747 if snippet.active_index + 1 < snippet.ranges.len() {
4748 self.snippet_stack.push(snippet);
4749 }
4750 return true;
4751 }
4752 }
4753
4754 false
4755 }
4756
4757 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4758 self.transact(cx, |this, cx| {
4759 this.select_all(&SelectAll, cx);
4760 this.insert("", cx);
4761 });
4762 }
4763
4764 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4765 self.transact(cx, |this, cx| {
4766 this.select_autoclose_pair(cx);
4767 let mut selections = this.selections.all::<Point>(cx);
4768 if !this.selections.line_mode {
4769 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4770 for selection in &mut selections {
4771 if selection.is_empty() {
4772 let old_head = selection.head();
4773 let mut new_head =
4774 movement::left(&display_map, old_head.to_display_point(&display_map))
4775 .to_point(&display_map);
4776 if let Some((buffer, line_buffer_range)) = display_map
4777 .buffer_snapshot
4778 .buffer_line_for_row(old_head.row)
4779 {
4780 let indent_size =
4781 buffer.indent_size_for_line(line_buffer_range.start.row);
4782 let indent_len = match indent_size.kind {
4783 IndentKind::Space => {
4784 buffer.settings_at(line_buffer_range.start, cx).tab_size
4785 }
4786 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4787 };
4788 if old_head.column <= indent_size.len && old_head.column > 0 {
4789 let indent_len = indent_len.get();
4790 new_head = cmp::min(
4791 new_head,
4792 Point::new(
4793 old_head.row,
4794 ((old_head.column - 1) / indent_len) * indent_len,
4795 ),
4796 );
4797 }
4798 }
4799
4800 selection.set_head(new_head, SelectionGoal::None);
4801 }
4802 }
4803 }
4804
4805 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4806 this.insert("", cx);
4807 this.refresh_inline_completion(true, cx);
4808 });
4809 }
4810
4811 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4812 self.transact(cx, |this, cx| {
4813 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4814 let line_mode = s.line_mode;
4815 s.move_with(|map, selection| {
4816 if selection.is_empty() && !line_mode {
4817 let cursor = movement::right(map, selection.head());
4818 selection.end = cursor;
4819 selection.reversed = true;
4820 selection.goal = SelectionGoal::None;
4821 }
4822 })
4823 });
4824 this.insert("", cx);
4825 this.refresh_inline_completion(true, cx);
4826 });
4827 }
4828
4829 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4830 if self.move_to_prev_snippet_tabstop(cx) {
4831 return;
4832 }
4833
4834 self.outdent(&Outdent, cx);
4835 }
4836
4837 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4838 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4839 return;
4840 }
4841
4842 let mut selections = self.selections.all_adjusted(cx);
4843 let buffer = self.buffer.read(cx);
4844 let snapshot = buffer.snapshot(cx);
4845 let rows_iter = selections.iter().map(|s| s.head().row);
4846 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4847
4848 let mut edits = Vec::new();
4849 let mut prev_edited_row = 0;
4850 let mut row_delta = 0;
4851 for selection in &mut selections {
4852 if selection.start.row != prev_edited_row {
4853 row_delta = 0;
4854 }
4855 prev_edited_row = selection.end.row;
4856
4857 // If the selection is non-empty, then increase the indentation of the selected lines.
4858 if !selection.is_empty() {
4859 row_delta =
4860 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4861 continue;
4862 }
4863
4864 // If the selection is empty and the cursor is in the leading whitespace before the
4865 // suggested indentation, then auto-indent the line.
4866 let cursor = selection.head();
4867 let current_indent = snapshot.indent_size_for_line(cursor.row);
4868 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4869 if cursor.column < suggested_indent.len
4870 && cursor.column <= current_indent.len
4871 && current_indent.len <= suggested_indent.len
4872 {
4873 selection.start = Point::new(cursor.row, suggested_indent.len);
4874 selection.end = selection.start;
4875 if row_delta == 0 {
4876 edits.extend(Buffer::edit_for_indent_size_adjustment(
4877 cursor.row,
4878 current_indent,
4879 suggested_indent,
4880 ));
4881 row_delta = suggested_indent.len - current_indent.len;
4882 }
4883 continue;
4884 }
4885 }
4886
4887 // Accept copilot completion if there is only one selection and the cursor is not
4888 // in the leading whitespace.
4889 if self.selections.count() == 1
4890 && cursor.column >= current_indent.len
4891 && self.has_active_inline_completion(cx)
4892 {
4893 self.accept_inline_completion(cx);
4894 return;
4895 }
4896
4897 // Otherwise, insert a hard or soft tab.
4898 let settings = buffer.settings_at(cursor, cx);
4899 let tab_size = if settings.hard_tabs {
4900 IndentSize::tab()
4901 } else {
4902 let tab_size = settings.tab_size.get();
4903 let char_column = snapshot
4904 .text_for_range(Point::new(cursor.row, 0)..cursor)
4905 .flat_map(str::chars)
4906 .count()
4907 + row_delta as usize;
4908 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4909 IndentSize::spaces(chars_to_next_tab_stop)
4910 };
4911 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4912 selection.end = selection.start;
4913 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4914 row_delta += tab_size.len;
4915 }
4916
4917 self.transact(cx, |this, cx| {
4918 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4919 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4920 this.refresh_inline_completion(true, cx);
4921 });
4922 }
4923
4924 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4925 if self.read_only(cx) {
4926 return;
4927 }
4928 let mut selections = self.selections.all::<Point>(cx);
4929 let mut prev_edited_row = 0;
4930 let mut row_delta = 0;
4931 let mut edits = Vec::new();
4932 let buffer = self.buffer.read(cx);
4933 let snapshot = buffer.snapshot(cx);
4934 for selection in &mut selections {
4935 if selection.start.row != prev_edited_row {
4936 row_delta = 0;
4937 }
4938 prev_edited_row = selection.end.row;
4939
4940 row_delta =
4941 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4942 }
4943
4944 self.transact(cx, |this, cx| {
4945 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4946 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4947 });
4948 }
4949
4950 fn indent_selection(
4951 buffer: &MultiBuffer,
4952 snapshot: &MultiBufferSnapshot,
4953 selection: &mut Selection<Point>,
4954 edits: &mut Vec<(Range<Point>, String)>,
4955 delta_for_start_row: u32,
4956 cx: &AppContext,
4957 ) -> u32 {
4958 let settings = buffer.settings_at(selection.start, cx);
4959 let tab_size = settings.tab_size.get();
4960 let indent_kind = if settings.hard_tabs {
4961 IndentKind::Tab
4962 } else {
4963 IndentKind::Space
4964 };
4965 let mut start_row = selection.start.row;
4966 let mut end_row = selection.end.row + 1;
4967
4968 // If a selection ends at the beginning of a line, don't indent
4969 // that last line.
4970 if selection.end.column == 0 && selection.end.row > selection.start.row {
4971 end_row -= 1;
4972 }
4973
4974 // Avoid re-indenting a row that has already been indented by a
4975 // previous selection, but still update this selection's column
4976 // to reflect that indentation.
4977 if delta_for_start_row > 0 {
4978 start_row += 1;
4979 selection.start.column += delta_for_start_row;
4980 if selection.end.row == selection.start.row {
4981 selection.end.column += delta_for_start_row;
4982 }
4983 }
4984
4985 let mut delta_for_end_row = 0;
4986 let has_multiple_rows = start_row + 1 != end_row;
4987 for row in start_row..end_row {
4988 let current_indent = snapshot.indent_size_for_line(row);
4989 let indent_delta = match (current_indent.kind, indent_kind) {
4990 (IndentKind::Space, IndentKind::Space) => {
4991 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4992 IndentSize::spaces(columns_to_next_tab_stop)
4993 }
4994 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4995 (_, IndentKind::Tab) => IndentSize::tab(),
4996 };
4997
4998 let start = if has_multiple_rows || current_indent.len < selection.start.column {
4999 0
5000 } else {
5001 selection.start.column
5002 };
5003 let row_start = Point::new(row, start);
5004 edits.push((
5005 row_start..row_start,
5006 indent_delta.chars().collect::<String>(),
5007 ));
5008
5009 // Update this selection's endpoints to reflect the indentation.
5010 if row == selection.start.row {
5011 selection.start.column += indent_delta.len;
5012 }
5013 if row == selection.end.row {
5014 selection.end.column += indent_delta.len;
5015 delta_for_end_row = indent_delta.len;
5016 }
5017 }
5018
5019 if selection.start.row == selection.end.row {
5020 delta_for_start_row + delta_for_end_row
5021 } else {
5022 delta_for_end_row
5023 }
5024 }
5025
5026 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5027 if self.read_only(cx) {
5028 return;
5029 }
5030 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5031 let selections = self.selections.all::<Point>(cx);
5032 let mut deletion_ranges = Vec::new();
5033 let mut last_outdent = None;
5034 {
5035 let buffer = self.buffer.read(cx);
5036 let snapshot = buffer.snapshot(cx);
5037 for selection in &selections {
5038 let settings = buffer.settings_at(selection.start, cx);
5039 let tab_size = settings.tab_size.get();
5040 let mut rows = selection.spanned_rows(false, &display_map);
5041
5042 // Avoid re-outdenting a row that has already been outdented by a
5043 // previous selection.
5044 if let Some(last_row) = last_outdent {
5045 if last_row == rows.start {
5046 rows.start += 1;
5047 }
5048 }
5049 let has_multiple_rows = rows.len() > 1;
5050 for row in rows {
5051 let indent_size = snapshot.indent_size_for_line(row);
5052 if indent_size.len > 0 {
5053 let deletion_len = match indent_size.kind {
5054 IndentKind::Space => {
5055 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5056 if columns_to_prev_tab_stop == 0 {
5057 tab_size
5058 } else {
5059 columns_to_prev_tab_stop
5060 }
5061 }
5062 IndentKind::Tab => 1,
5063 };
5064 let start = if has_multiple_rows
5065 || deletion_len > selection.start.column
5066 || indent_size.len < selection.start.column
5067 {
5068 0
5069 } else {
5070 selection.start.column - deletion_len
5071 };
5072 deletion_ranges
5073 .push(Point::new(row, start)..Point::new(row, start + deletion_len));
5074 last_outdent = Some(row);
5075 }
5076 }
5077 }
5078 }
5079
5080 self.transact(cx, |this, cx| {
5081 this.buffer.update(cx, |buffer, cx| {
5082 let empty_str: Arc<str> = "".into();
5083 buffer.edit(
5084 deletion_ranges
5085 .into_iter()
5086 .map(|range| (range, empty_str.clone())),
5087 None,
5088 cx,
5089 );
5090 });
5091 let selections = this.selections.all::<usize>(cx);
5092 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5093 });
5094 }
5095
5096 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5097 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5098 let selections = self.selections.all::<Point>(cx);
5099
5100 let mut new_cursors = Vec::new();
5101 let mut edit_ranges = Vec::new();
5102 let mut selections = selections.iter().peekable();
5103 while let Some(selection) = selections.next() {
5104 let mut rows = selection.spanned_rows(false, &display_map);
5105 let goal_display_column = selection.head().to_display_point(&display_map).column();
5106
5107 // Accumulate contiguous regions of rows that we want to delete.
5108 while let Some(next_selection) = selections.peek() {
5109 let next_rows = next_selection.spanned_rows(false, &display_map);
5110 if next_rows.start <= rows.end {
5111 rows.end = next_rows.end;
5112 selections.next().unwrap();
5113 } else {
5114 break;
5115 }
5116 }
5117
5118 let buffer = &display_map.buffer_snapshot;
5119 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
5120 let edit_end;
5121 let cursor_buffer_row;
5122 if buffer.max_point().row >= rows.end {
5123 // If there's a line after the range, delete the \n from the end of the row range
5124 // and position the cursor on the next line.
5125 edit_end = Point::new(rows.end, 0).to_offset(buffer);
5126 cursor_buffer_row = rows.end;
5127 } else {
5128 // If there isn't a line after the range, delete the \n from the line before the
5129 // start of the row range and position the cursor there.
5130 edit_start = edit_start.saturating_sub(1);
5131 edit_end = buffer.len();
5132 cursor_buffer_row = rows.start.saturating_sub(1);
5133 }
5134
5135 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
5136 *cursor.column_mut() =
5137 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5138
5139 new_cursors.push((
5140 selection.id,
5141 buffer.anchor_after(cursor.to_point(&display_map)),
5142 ));
5143 edit_ranges.push(edit_start..edit_end);
5144 }
5145
5146 self.transact(cx, |this, cx| {
5147 let buffer = this.buffer.update(cx, |buffer, cx| {
5148 let empty_str: Arc<str> = "".into();
5149 buffer.edit(
5150 edit_ranges
5151 .into_iter()
5152 .map(|range| (range, empty_str.clone())),
5153 None,
5154 cx,
5155 );
5156 buffer.snapshot(cx)
5157 });
5158 let new_selections = new_cursors
5159 .into_iter()
5160 .map(|(id, cursor)| {
5161 let cursor = cursor.to_point(&buffer);
5162 Selection {
5163 id,
5164 start: cursor,
5165 end: cursor,
5166 reversed: false,
5167 goal: SelectionGoal::None,
5168 }
5169 })
5170 .collect();
5171
5172 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5173 s.select(new_selections);
5174 });
5175 });
5176 }
5177
5178 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5179 if self.read_only(cx) {
5180 return;
5181 }
5182 let mut row_ranges = Vec::<Range<u32>>::new();
5183 for selection in self.selections.all::<Point>(cx) {
5184 let start = selection.start.row;
5185 let end = if selection.start.row == selection.end.row {
5186 selection.start.row + 1
5187 } else {
5188 selection.end.row
5189 };
5190
5191 if let Some(last_row_range) = row_ranges.last_mut() {
5192 if start <= last_row_range.end {
5193 last_row_range.end = end;
5194 continue;
5195 }
5196 }
5197 row_ranges.push(start..end);
5198 }
5199
5200 let snapshot = self.buffer.read(cx).snapshot(cx);
5201 let mut cursor_positions = Vec::new();
5202 for row_range in &row_ranges {
5203 let anchor = snapshot.anchor_before(Point::new(
5204 row_range.end - 1,
5205 snapshot.line_len(row_range.end - 1),
5206 ));
5207 cursor_positions.push(anchor..anchor);
5208 }
5209
5210 self.transact(cx, |this, cx| {
5211 for row_range in row_ranges.into_iter().rev() {
5212 for row in row_range.rev() {
5213 let end_of_line = Point::new(row, snapshot.line_len(row));
5214 let indent = snapshot.indent_size_for_line(row + 1);
5215 let start_of_next_line = Point::new(row + 1, indent.len);
5216
5217 let replace = if snapshot.line_len(row + 1) > indent.len {
5218 " "
5219 } else {
5220 ""
5221 };
5222
5223 this.buffer.update(cx, |buffer, cx| {
5224 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5225 });
5226 }
5227 }
5228
5229 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5230 s.select_anchor_ranges(cursor_positions)
5231 });
5232 });
5233 }
5234
5235 pub fn sort_lines_case_sensitive(
5236 &mut self,
5237 _: &SortLinesCaseSensitive,
5238 cx: &mut ViewContext<Self>,
5239 ) {
5240 self.manipulate_lines(cx, |lines| lines.sort())
5241 }
5242
5243 pub fn sort_lines_case_insensitive(
5244 &mut self,
5245 _: &SortLinesCaseInsensitive,
5246 cx: &mut ViewContext<Self>,
5247 ) {
5248 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5249 }
5250
5251 pub fn unique_lines_case_insensitive(
5252 &mut self,
5253 _: &UniqueLinesCaseInsensitive,
5254 cx: &mut ViewContext<Self>,
5255 ) {
5256 self.manipulate_lines(cx, |lines| {
5257 let mut seen = HashSet::default();
5258 lines.retain(|line| seen.insert(line.to_lowercase()));
5259 })
5260 }
5261
5262 pub fn unique_lines_case_sensitive(
5263 &mut self,
5264 _: &UniqueLinesCaseSensitive,
5265 cx: &mut ViewContext<Self>,
5266 ) {
5267 self.manipulate_lines(cx, |lines| {
5268 let mut seen = HashSet::default();
5269 lines.retain(|line| seen.insert(*line));
5270 })
5271 }
5272
5273 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5274 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5275 if !revert_changes.is_empty() {
5276 self.transact(cx, |editor, cx| {
5277 editor.buffer().update(cx, |multi_buffer, cx| {
5278 for (buffer_id, changes) in revert_changes {
5279 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5280 buffer.update(cx, |buffer, cx| {
5281 buffer.edit(
5282 changes.into_iter().map(|(range, text)| {
5283 (range, text.to_string().map(Arc::<str>::from))
5284 }),
5285 None,
5286 cx,
5287 );
5288 });
5289 }
5290 }
5291 });
5292 editor.change_selections(None, cx, |selections| selections.refresh());
5293 });
5294 }
5295 }
5296
5297 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5298 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5299 let project_path = buffer.read(cx).project_path(cx)?;
5300 let project = self.project.as_ref()?.read(cx);
5301 let entry = project.entry_for_path(&project_path, cx)?;
5302 let abs_path = project.absolute_path(&project_path, cx)?;
5303 let parent = if entry.is_symlink {
5304 abs_path.canonicalize().ok()?
5305 } else {
5306 abs_path
5307 }
5308 .parent()?
5309 .to_path_buf();
5310 Some(parent)
5311 }) {
5312 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5313 }
5314 }
5315
5316 fn gather_revert_changes(
5317 &mut self,
5318 selections: &[Selection<Anchor>],
5319 cx: &mut ViewContext<'_, Editor>,
5320 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5321 let mut revert_changes = HashMap::default();
5322 self.buffer.update(cx, |multi_buffer, cx| {
5323 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5324 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5325 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5326 }
5327 });
5328 revert_changes
5329 }
5330
5331 fn prepare_revert_change(
5332 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5333 multi_buffer: &MultiBuffer,
5334 hunk: &DiffHunk<u32>,
5335 cx: &mut AppContext,
5336 ) -> Option<()> {
5337 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5338 let buffer = buffer.read(cx);
5339 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5340 let buffer_snapshot = buffer.snapshot();
5341 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5342 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5343 probe
5344 .0
5345 .start
5346 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5347 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5348 }) {
5349 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5350 Some(())
5351 } else {
5352 None
5353 }
5354 }
5355
5356 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5357 self.manipulate_lines(cx, |lines| lines.reverse())
5358 }
5359
5360 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5361 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5362 }
5363
5364 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5365 where
5366 Fn: FnMut(&mut Vec<&str>),
5367 {
5368 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5369 let buffer = self.buffer.read(cx).snapshot(cx);
5370
5371 let mut edits = Vec::new();
5372
5373 let selections = self.selections.all::<Point>(cx);
5374 let mut selections = selections.iter().peekable();
5375 let mut contiguous_row_selections = Vec::new();
5376 let mut new_selections = Vec::new();
5377 let mut added_lines = 0;
5378 let mut removed_lines = 0;
5379
5380 while let Some(selection) = selections.next() {
5381 let (start_row, end_row) = consume_contiguous_rows(
5382 &mut contiguous_row_selections,
5383 selection,
5384 &display_map,
5385 &mut selections,
5386 );
5387
5388 let start_point = Point::new(start_row, 0);
5389 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5390 let text = buffer
5391 .text_for_range(start_point..end_point)
5392 .collect::<String>();
5393
5394 let mut lines = text.split('\n').collect_vec();
5395
5396 let lines_before = lines.len();
5397 callback(&mut lines);
5398 let lines_after = lines.len();
5399
5400 edits.push((start_point..end_point, lines.join("\n")));
5401
5402 // Selections must change based on added and removed line count
5403 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5404 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5405 new_selections.push(Selection {
5406 id: selection.id,
5407 start: start_row,
5408 end: end_row,
5409 goal: SelectionGoal::None,
5410 reversed: selection.reversed,
5411 });
5412
5413 if lines_after > lines_before {
5414 added_lines += lines_after - lines_before;
5415 } else if lines_before > lines_after {
5416 removed_lines += lines_before - lines_after;
5417 }
5418 }
5419
5420 self.transact(cx, |this, cx| {
5421 let buffer = this.buffer.update(cx, |buffer, cx| {
5422 buffer.edit(edits, None, cx);
5423 buffer.snapshot(cx)
5424 });
5425
5426 // Recalculate offsets on newly edited buffer
5427 let new_selections = new_selections
5428 .iter()
5429 .map(|s| {
5430 let start_point = Point::new(s.start, 0);
5431 let end_point = Point::new(s.end, buffer.line_len(s.end));
5432 Selection {
5433 id: s.id,
5434 start: buffer.point_to_offset(start_point),
5435 end: buffer.point_to_offset(end_point),
5436 goal: s.goal,
5437 reversed: s.reversed,
5438 }
5439 })
5440 .collect();
5441
5442 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5443 s.select(new_selections);
5444 });
5445
5446 this.request_autoscroll(Autoscroll::fit(), cx);
5447 });
5448 }
5449
5450 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5451 self.manipulate_text(cx, |text| text.to_uppercase())
5452 }
5453
5454 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5455 self.manipulate_text(cx, |text| text.to_lowercase())
5456 }
5457
5458 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5459 self.manipulate_text(cx, |text| {
5460 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5461 // https://github.com/rutrum/convert-case/issues/16
5462 text.split('\n')
5463 .map(|line| line.to_case(Case::Title))
5464 .join("\n")
5465 })
5466 }
5467
5468 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5469 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5470 }
5471
5472 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5473 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5474 }
5475
5476 pub fn convert_to_upper_camel_case(
5477 &mut self,
5478 _: &ConvertToUpperCamelCase,
5479 cx: &mut ViewContext<Self>,
5480 ) {
5481 self.manipulate_text(cx, |text| {
5482 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5483 // https://github.com/rutrum/convert-case/issues/16
5484 text.split('\n')
5485 .map(|line| line.to_case(Case::UpperCamel))
5486 .join("\n")
5487 })
5488 }
5489
5490 pub fn convert_to_lower_camel_case(
5491 &mut self,
5492 _: &ConvertToLowerCamelCase,
5493 cx: &mut ViewContext<Self>,
5494 ) {
5495 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5496 }
5497
5498 pub fn convert_to_opposite_case(
5499 &mut self,
5500 _: &ConvertToOppositeCase,
5501 cx: &mut ViewContext<Self>,
5502 ) {
5503 self.manipulate_text(cx, |text| {
5504 text.chars()
5505 .fold(String::with_capacity(text.len()), |mut t, c| {
5506 if c.is_uppercase() {
5507 t.extend(c.to_lowercase());
5508 } else {
5509 t.extend(c.to_uppercase());
5510 }
5511 t
5512 })
5513 })
5514 }
5515
5516 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5517 where
5518 Fn: FnMut(&str) -> String,
5519 {
5520 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5521 let buffer = self.buffer.read(cx).snapshot(cx);
5522
5523 let mut new_selections = Vec::new();
5524 let mut edits = Vec::new();
5525 let mut selection_adjustment = 0i32;
5526
5527 for selection in self.selections.all::<usize>(cx) {
5528 let selection_is_empty = selection.is_empty();
5529
5530 let (start, end) = if selection_is_empty {
5531 let word_range = movement::surrounding_word(
5532 &display_map,
5533 selection.start.to_display_point(&display_map),
5534 );
5535 let start = word_range.start.to_offset(&display_map, Bias::Left);
5536 let end = word_range.end.to_offset(&display_map, Bias::Left);
5537 (start, end)
5538 } else {
5539 (selection.start, selection.end)
5540 };
5541
5542 let text = buffer.text_for_range(start..end).collect::<String>();
5543 let old_length = text.len() as i32;
5544 let text = callback(&text);
5545
5546 new_selections.push(Selection {
5547 start: (start as i32 - selection_adjustment) as usize,
5548 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5549 goal: SelectionGoal::None,
5550 ..selection
5551 });
5552
5553 selection_adjustment += old_length - text.len() as i32;
5554
5555 edits.push((start..end, text));
5556 }
5557
5558 self.transact(cx, |this, cx| {
5559 this.buffer.update(cx, |buffer, cx| {
5560 buffer.edit(edits, None, cx);
5561 });
5562
5563 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5564 s.select(new_selections);
5565 });
5566
5567 this.request_autoscroll(Autoscroll::fit(), cx);
5568 });
5569 }
5570
5571 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5572 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5573 let buffer = &display_map.buffer_snapshot;
5574 let selections = self.selections.all::<Point>(cx);
5575
5576 let mut edits = Vec::new();
5577 let mut selections_iter = selections.iter().peekable();
5578 while let Some(selection) = selections_iter.next() {
5579 // Avoid duplicating the same lines twice.
5580 let mut rows = selection.spanned_rows(false, &display_map);
5581
5582 while let Some(next_selection) = selections_iter.peek() {
5583 let next_rows = next_selection.spanned_rows(false, &display_map);
5584 if next_rows.start < rows.end {
5585 rows.end = next_rows.end;
5586 selections_iter.next().unwrap();
5587 } else {
5588 break;
5589 }
5590 }
5591
5592 // Copy the text from the selected row region and splice it either at the start
5593 // or end of the region.
5594 let start = Point::new(rows.start, 0);
5595 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5596 let text = buffer
5597 .text_for_range(start..end)
5598 .chain(Some("\n"))
5599 .collect::<String>();
5600 let insert_location = if upwards {
5601 Point::new(rows.end, 0)
5602 } else {
5603 start
5604 };
5605 edits.push((insert_location..insert_location, text));
5606 }
5607
5608 self.transact(cx, |this, cx| {
5609 this.buffer.update(cx, |buffer, cx| {
5610 buffer.edit(edits, None, cx);
5611 });
5612
5613 this.request_autoscroll(Autoscroll::fit(), cx);
5614 });
5615 }
5616
5617 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5618 self.duplicate_line(true, cx);
5619 }
5620
5621 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5622 self.duplicate_line(false, cx);
5623 }
5624
5625 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5626 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5627 let buffer = self.buffer.read(cx).snapshot(cx);
5628
5629 let mut edits = Vec::new();
5630 let mut unfold_ranges = Vec::new();
5631 let mut refold_ranges = Vec::new();
5632
5633 let selections = self.selections.all::<Point>(cx);
5634 let mut selections = selections.iter().peekable();
5635 let mut contiguous_row_selections = Vec::new();
5636 let mut new_selections = Vec::new();
5637
5638 while let Some(selection) = selections.next() {
5639 // Find all the selections that span a contiguous row range
5640 let (start_row, end_row) = consume_contiguous_rows(
5641 &mut contiguous_row_selections,
5642 selection,
5643 &display_map,
5644 &mut selections,
5645 );
5646
5647 // Move the text spanned by the row range to be before the line preceding the row range
5648 if start_row > 0 {
5649 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5650 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5651 let insertion_point = display_map
5652 .prev_line_boundary(Point::new(start_row - 1, 0))
5653 .0;
5654
5655 // Don't move lines across excerpts
5656 if buffer
5657 .excerpt_boundaries_in_range((
5658 Bound::Excluded(insertion_point),
5659 Bound::Included(range_to_move.end),
5660 ))
5661 .next()
5662 .is_none()
5663 {
5664 let text = buffer
5665 .text_for_range(range_to_move.clone())
5666 .flat_map(|s| s.chars())
5667 .skip(1)
5668 .chain(['\n'])
5669 .collect::<String>();
5670
5671 edits.push((
5672 buffer.anchor_after(range_to_move.start)
5673 ..buffer.anchor_before(range_to_move.end),
5674 String::new(),
5675 ));
5676 let insertion_anchor = buffer.anchor_after(insertion_point);
5677 edits.push((insertion_anchor..insertion_anchor, text));
5678
5679 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5680
5681 // Move selections up
5682 new_selections.extend(contiguous_row_selections.drain(..).map(
5683 |mut selection| {
5684 selection.start.row -= row_delta;
5685 selection.end.row -= row_delta;
5686 selection
5687 },
5688 ));
5689
5690 // Move folds up
5691 unfold_ranges.push(range_to_move.clone());
5692 for fold in display_map.folds_in_range(
5693 buffer.anchor_before(range_to_move.start)
5694 ..buffer.anchor_after(range_to_move.end),
5695 ) {
5696 let mut start = fold.range.start.to_point(&buffer);
5697 let mut end = fold.range.end.to_point(&buffer);
5698 start.row -= row_delta;
5699 end.row -= row_delta;
5700 refold_ranges.push(start..end);
5701 }
5702 }
5703 }
5704
5705 // If we didn't move line(s), preserve the existing selections
5706 new_selections.append(&mut contiguous_row_selections);
5707 }
5708
5709 self.transact(cx, |this, cx| {
5710 this.unfold_ranges(unfold_ranges, true, true, cx);
5711 this.buffer.update(cx, |buffer, cx| {
5712 for (range, text) in edits {
5713 buffer.edit([(range, text)], None, cx);
5714 }
5715 });
5716 this.fold_ranges(refold_ranges, true, cx);
5717 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5718 s.select(new_selections);
5719 })
5720 });
5721 }
5722
5723 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5724 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5725 let buffer = self.buffer.read(cx).snapshot(cx);
5726
5727 let mut edits = Vec::new();
5728 let mut unfold_ranges = Vec::new();
5729 let mut refold_ranges = Vec::new();
5730
5731 let selections = self.selections.all::<Point>(cx);
5732 let mut selections = selections.iter().peekable();
5733 let mut contiguous_row_selections = Vec::new();
5734 let mut new_selections = Vec::new();
5735
5736 while let Some(selection) = selections.next() {
5737 // Find all the selections that span a contiguous row range
5738 let (start_row, end_row) = consume_contiguous_rows(
5739 &mut contiguous_row_selections,
5740 selection,
5741 &display_map,
5742 &mut selections,
5743 );
5744
5745 // Move the text spanned by the row range to be after the last line of the row range
5746 if end_row <= buffer.max_point().row {
5747 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5748 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5749
5750 // Don't move lines across excerpt boundaries
5751 if buffer
5752 .excerpt_boundaries_in_range((
5753 Bound::Excluded(range_to_move.start),
5754 Bound::Included(insertion_point),
5755 ))
5756 .next()
5757 .is_none()
5758 {
5759 let mut text = String::from("\n");
5760 text.extend(buffer.text_for_range(range_to_move.clone()));
5761 text.pop(); // Drop trailing newline
5762 edits.push((
5763 buffer.anchor_after(range_to_move.start)
5764 ..buffer.anchor_before(range_to_move.end),
5765 String::new(),
5766 ));
5767 let insertion_anchor = buffer.anchor_after(insertion_point);
5768 edits.push((insertion_anchor..insertion_anchor, text));
5769
5770 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5771
5772 // Move selections down
5773 new_selections.extend(contiguous_row_selections.drain(..).map(
5774 |mut selection| {
5775 selection.start.row += row_delta;
5776 selection.end.row += row_delta;
5777 selection
5778 },
5779 ));
5780
5781 // Move folds down
5782 unfold_ranges.push(range_to_move.clone());
5783 for fold in display_map.folds_in_range(
5784 buffer.anchor_before(range_to_move.start)
5785 ..buffer.anchor_after(range_to_move.end),
5786 ) {
5787 let mut start = fold.range.start.to_point(&buffer);
5788 let mut end = fold.range.end.to_point(&buffer);
5789 start.row += row_delta;
5790 end.row += row_delta;
5791 refold_ranges.push(start..end);
5792 }
5793 }
5794 }
5795
5796 // If we didn't move line(s), preserve the existing selections
5797 new_selections.append(&mut contiguous_row_selections);
5798 }
5799
5800 self.transact(cx, |this, cx| {
5801 this.unfold_ranges(unfold_ranges, true, true, cx);
5802 this.buffer.update(cx, |buffer, cx| {
5803 for (range, text) in edits {
5804 buffer.edit([(range, text)], None, cx);
5805 }
5806 });
5807 this.fold_ranges(refold_ranges, true, cx);
5808 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5809 });
5810 }
5811
5812 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5813 let text_layout_details = &self.text_layout_details(cx);
5814 self.transact(cx, |this, cx| {
5815 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5816 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5817 let line_mode = s.line_mode;
5818 s.move_with(|display_map, selection| {
5819 if !selection.is_empty() || line_mode {
5820 return;
5821 }
5822
5823 let mut head = selection.head();
5824 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5825 if head.column() == display_map.line_len(head.row()) {
5826 transpose_offset = display_map
5827 .buffer_snapshot
5828 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5829 }
5830
5831 if transpose_offset == 0 {
5832 return;
5833 }
5834
5835 *head.column_mut() += 1;
5836 head = display_map.clip_point(head, Bias::Right);
5837 let goal = SelectionGoal::HorizontalPosition(
5838 display_map
5839 .x_for_display_point(head, &text_layout_details)
5840 .into(),
5841 );
5842 selection.collapse_to(head, goal);
5843
5844 let transpose_start = display_map
5845 .buffer_snapshot
5846 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5847 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5848 let transpose_end = display_map
5849 .buffer_snapshot
5850 .clip_offset(transpose_offset + 1, Bias::Right);
5851 if let Some(ch) =
5852 display_map.buffer_snapshot.chars_at(transpose_start).next()
5853 {
5854 edits.push((transpose_start..transpose_offset, String::new()));
5855 edits.push((transpose_end..transpose_end, ch.to_string()));
5856 }
5857 }
5858 });
5859 edits
5860 });
5861 this.buffer
5862 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5863 let selections = this.selections.all::<usize>(cx);
5864 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5865 s.select(selections);
5866 });
5867 });
5868 }
5869
5870 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5871 let mut text = String::new();
5872 let buffer = self.buffer.read(cx).snapshot(cx);
5873 let mut selections = self.selections.all::<Point>(cx);
5874 let mut clipboard_selections = Vec::with_capacity(selections.len());
5875 {
5876 let max_point = buffer.max_point();
5877 let mut is_first = true;
5878 for selection in &mut selections {
5879 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5880 if is_entire_line {
5881 selection.start = Point::new(selection.start.row, 0);
5882 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5883 selection.goal = SelectionGoal::None;
5884 }
5885 if is_first {
5886 is_first = false;
5887 } else {
5888 text += "\n";
5889 }
5890 let mut len = 0;
5891 for chunk in buffer.text_for_range(selection.start..selection.end) {
5892 text.push_str(chunk);
5893 len += chunk.len();
5894 }
5895 clipboard_selections.push(ClipboardSelection {
5896 len,
5897 is_entire_line,
5898 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5899 });
5900 }
5901 }
5902
5903 self.transact(cx, |this, cx| {
5904 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5905 s.select(selections);
5906 });
5907 this.insert("", cx);
5908 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5909 });
5910 }
5911
5912 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5913 let selections = self.selections.all::<Point>(cx);
5914 let buffer = self.buffer.read(cx).read(cx);
5915 let mut text = String::new();
5916
5917 let mut clipboard_selections = Vec::with_capacity(selections.len());
5918 {
5919 let max_point = buffer.max_point();
5920 let mut is_first = true;
5921 for selection in selections.iter() {
5922 let mut start = selection.start;
5923 let mut end = selection.end;
5924 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5925 if is_entire_line {
5926 start = Point::new(start.row, 0);
5927 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5928 }
5929 if is_first {
5930 is_first = false;
5931 } else {
5932 text += "\n";
5933 }
5934 let mut len = 0;
5935 for chunk in buffer.text_for_range(start..end) {
5936 text.push_str(chunk);
5937 len += chunk.len();
5938 }
5939 clipboard_selections.push(ClipboardSelection {
5940 len,
5941 is_entire_line,
5942 first_line_indent: buffer.indent_size_for_line(start.row).len,
5943 });
5944 }
5945 }
5946
5947 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5948 }
5949
5950 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5951 if self.read_only(cx) {
5952 return;
5953 }
5954
5955 self.transact(cx, |this, cx| {
5956 if let Some(item) = cx.read_from_clipboard() {
5957 let clipboard_text = Cow::Borrowed(item.text());
5958 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5959 let old_selections = this.selections.all::<usize>(cx);
5960 let all_selections_were_entire_line =
5961 clipboard_selections.iter().all(|s| s.is_entire_line);
5962 let first_selection_indent_column =
5963 clipboard_selections.first().map(|s| s.first_line_indent);
5964 if clipboard_selections.len() != old_selections.len() {
5965 clipboard_selections.drain(..);
5966 }
5967
5968 this.buffer.update(cx, |buffer, cx| {
5969 let snapshot = buffer.read(cx);
5970 let mut start_offset = 0;
5971 let mut edits = Vec::new();
5972 let mut original_indent_columns = Vec::new();
5973 let line_mode = this.selections.line_mode;
5974 for (ix, selection) in old_selections.iter().enumerate() {
5975 let to_insert;
5976 let entire_line;
5977 let original_indent_column;
5978 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5979 let end_offset = start_offset + clipboard_selection.len;
5980 to_insert = &clipboard_text[start_offset..end_offset];
5981 entire_line = clipboard_selection.is_entire_line;
5982 start_offset = end_offset + 1;
5983 original_indent_column =
5984 Some(clipboard_selection.first_line_indent);
5985 } else {
5986 to_insert = clipboard_text.as_str();
5987 entire_line = all_selections_were_entire_line;
5988 original_indent_column = first_selection_indent_column
5989 }
5990
5991 // If the corresponding selection was empty when this slice of the
5992 // clipboard text was written, then the entire line containing the
5993 // selection was copied. If this selection is also currently empty,
5994 // then paste the line before the current line of the buffer.
5995 let range = if selection.is_empty() && !line_mode && entire_line {
5996 let column = selection.start.to_point(&snapshot).column as usize;
5997 let line_start = selection.start - column;
5998 line_start..line_start
5999 } else {
6000 selection.range()
6001 };
6002
6003 edits.push((range, to_insert));
6004 original_indent_columns.extend(original_indent_column);
6005 }
6006 drop(snapshot);
6007
6008 buffer.edit(
6009 edits,
6010 Some(AutoindentMode::Block {
6011 original_indent_columns,
6012 }),
6013 cx,
6014 );
6015 });
6016
6017 let selections = this.selections.all::<usize>(cx);
6018 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6019 } else {
6020 this.insert(&clipboard_text, cx);
6021 }
6022 }
6023 });
6024 }
6025
6026 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6027 if self.read_only(cx) {
6028 return;
6029 }
6030
6031 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6032 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6033 self.change_selections(None, cx, |s| {
6034 s.select_anchors(selections.to_vec());
6035 });
6036 }
6037 self.request_autoscroll(Autoscroll::fit(), cx);
6038 self.unmark_text(cx);
6039 self.refresh_inline_completion(true, cx);
6040 cx.emit(EditorEvent::Edited);
6041 cx.emit(EditorEvent::TransactionUndone {
6042 transaction_id: tx_id,
6043 });
6044 }
6045 }
6046
6047 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6048 if self.read_only(cx) {
6049 return;
6050 }
6051
6052 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6053 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6054 {
6055 self.change_selections(None, cx, |s| {
6056 s.select_anchors(selections.to_vec());
6057 });
6058 }
6059 self.request_autoscroll(Autoscroll::fit(), cx);
6060 self.unmark_text(cx);
6061 self.refresh_inline_completion(true, cx);
6062 cx.emit(EditorEvent::Edited);
6063 }
6064 }
6065
6066 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6067 self.buffer
6068 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6069 }
6070
6071 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6072 self.buffer
6073 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6074 }
6075
6076 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6077 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6078 let line_mode = s.line_mode;
6079 s.move_with(|map, selection| {
6080 let cursor = if selection.is_empty() && !line_mode {
6081 movement::left(map, selection.start)
6082 } else {
6083 selection.start
6084 };
6085 selection.collapse_to(cursor, SelectionGoal::None);
6086 });
6087 })
6088 }
6089
6090 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6091 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6092 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6093 })
6094 }
6095
6096 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6098 let line_mode = s.line_mode;
6099 s.move_with(|map, selection| {
6100 let cursor = if selection.is_empty() && !line_mode {
6101 movement::right(map, selection.end)
6102 } else {
6103 selection.end
6104 };
6105 selection.collapse_to(cursor, SelectionGoal::None)
6106 });
6107 })
6108 }
6109
6110 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6111 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6112 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6113 })
6114 }
6115
6116 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6117 if self.take_rename(true, cx).is_some() {
6118 return;
6119 }
6120
6121 if matches!(self.mode, EditorMode::SingleLine) {
6122 cx.propagate();
6123 return;
6124 }
6125
6126 let text_layout_details = &self.text_layout_details(cx);
6127
6128 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6129 let line_mode = s.line_mode;
6130 s.move_with(|map, selection| {
6131 if !selection.is_empty() && !line_mode {
6132 selection.goal = SelectionGoal::None;
6133 }
6134 let (cursor, goal) = movement::up(
6135 map,
6136 selection.start,
6137 selection.goal,
6138 false,
6139 &text_layout_details,
6140 );
6141 selection.collapse_to(cursor, goal);
6142 });
6143 })
6144 }
6145
6146 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6147 if self.take_rename(true, cx).is_some() {
6148 return;
6149 }
6150
6151 if matches!(self.mode, EditorMode::SingleLine) {
6152 cx.propagate();
6153 return;
6154 }
6155
6156 let text_layout_details = &self.text_layout_details(cx);
6157
6158 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6159 let line_mode = s.line_mode;
6160 s.move_with(|map, selection| {
6161 if !selection.is_empty() && !line_mode {
6162 selection.goal = SelectionGoal::None;
6163 }
6164 let (cursor, goal) = movement::up_by_rows(
6165 map,
6166 selection.start,
6167 action.lines,
6168 selection.goal,
6169 false,
6170 &text_layout_details,
6171 );
6172 selection.collapse_to(cursor, goal);
6173 });
6174 })
6175 }
6176
6177 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6178 if self.take_rename(true, cx).is_some() {
6179 return;
6180 }
6181
6182 if matches!(self.mode, EditorMode::SingleLine) {
6183 cx.propagate();
6184 return;
6185 }
6186
6187 let text_layout_details = &self.text_layout_details(cx);
6188
6189 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6190 let line_mode = s.line_mode;
6191 s.move_with(|map, selection| {
6192 if !selection.is_empty() && !line_mode {
6193 selection.goal = SelectionGoal::None;
6194 }
6195 let (cursor, goal) = movement::down_by_rows(
6196 map,
6197 selection.start,
6198 action.lines,
6199 selection.goal,
6200 false,
6201 &text_layout_details,
6202 );
6203 selection.collapse_to(cursor, goal);
6204 });
6205 })
6206 }
6207
6208 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6209 let text_layout_details = &self.text_layout_details(cx);
6210 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6211 s.move_heads_with(|map, head, goal| {
6212 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6213 })
6214 })
6215 }
6216
6217 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6218 let text_layout_details = &self.text_layout_details(cx);
6219 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6220 s.move_heads_with(|map, head, goal| {
6221 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6222 })
6223 })
6224 }
6225
6226 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6227 if self.take_rename(true, cx).is_some() {
6228 return;
6229 }
6230
6231 if matches!(self.mode, EditorMode::SingleLine) {
6232 cx.propagate();
6233 return;
6234 }
6235
6236 let row_count = if let Some(row_count) = self.visible_line_count() {
6237 row_count as u32 - 1
6238 } else {
6239 return;
6240 };
6241
6242 let autoscroll = if action.center_cursor {
6243 Autoscroll::center()
6244 } else {
6245 Autoscroll::fit()
6246 };
6247
6248 let text_layout_details = &self.text_layout_details(cx);
6249
6250 self.change_selections(Some(autoscroll), cx, |s| {
6251 let line_mode = s.line_mode;
6252 s.move_with(|map, selection| {
6253 if !selection.is_empty() && !line_mode {
6254 selection.goal = SelectionGoal::None;
6255 }
6256 let (cursor, goal) = movement::up_by_rows(
6257 map,
6258 selection.end,
6259 row_count,
6260 selection.goal,
6261 false,
6262 &text_layout_details,
6263 );
6264 selection.collapse_to(cursor, goal);
6265 });
6266 });
6267 }
6268
6269 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6270 let text_layout_details = &self.text_layout_details(cx);
6271 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6272 s.move_heads_with(|map, head, goal| {
6273 movement::up(map, head, goal, false, &text_layout_details)
6274 })
6275 })
6276 }
6277
6278 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6279 self.take_rename(true, cx);
6280
6281 if self.mode == EditorMode::SingleLine {
6282 cx.propagate();
6283 return;
6284 }
6285
6286 let text_layout_details = &self.text_layout_details(cx);
6287 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6288 let line_mode = s.line_mode;
6289 s.move_with(|map, selection| {
6290 if !selection.is_empty() && !line_mode {
6291 selection.goal = SelectionGoal::None;
6292 }
6293 let (cursor, goal) = movement::down(
6294 map,
6295 selection.end,
6296 selection.goal,
6297 false,
6298 &text_layout_details,
6299 );
6300 selection.collapse_to(cursor, goal);
6301 });
6302 });
6303 }
6304
6305 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6306 if self.take_rename(true, cx).is_some() {
6307 return;
6308 }
6309
6310 if self
6311 .context_menu
6312 .write()
6313 .as_mut()
6314 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6315 .unwrap_or(false)
6316 {
6317 return;
6318 }
6319
6320 if matches!(self.mode, EditorMode::SingleLine) {
6321 cx.propagate();
6322 return;
6323 }
6324
6325 let row_count = if let Some(row_count) = self.visible_line_count() {
6326 row_count as u32 - 1
6327 } else {
6328 return;
6329 };
6330
6331 let autoscroll = if action.center_cursor {
6332 Autoscroll::center()
6333 } else {
6334 Autoscroll::fit()
6335 };
6336
6337 let text_layout_details = &self.text_layout_details(cx);
6338 self.change_selections(Some(autoscroll), cx, |s| {
6339 let line_mode = s.line_mode;
6340 s.move_with(|map, selection| {
6341 if !selection.is_empty() && !line_mode {
6342 selection.goal = SelectionGoal::None;
6343 }
6344 let (cursor, goal) = movement::down_by_rows(
6345 map,
6346 selection.end,
6347 row_count,
6348 selection.goal,
6349 false,
6350 &text_layout_details,
6351 );
6352 selection.collapse_to(cursor, goal);
6353 });
6354 });
6355 }
6356
6357 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6358 let text_layout_details = &self.text_layout_details(cx);
6359 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6360 s.move_heads_with(|map, head, goal| {
6361 movement::down(map, head, goal, false, &text_layout_details)
6362 })
6363 });
6364 }
6365
6366 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6367 if let Some(context_menu) = self.context_menu.write().as_mut() {
6368 context_menu.select_first(self.project.as_ref(), cx);
6369 }
6370 }
6371
6372 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6373 if let Some(context_menu) = self.context_menu.write().as_mut() {
6374 context_menu.select_prev(self.project.as_ref(), cx);
6375 }
6376 }
6377
6378 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6379 if let Some(context_menu) = self.context_menu.write().as_mut() {
6380 context_menu.select_next(self.project.as_ref(), cx);
6381 }
6382 }
6383
6384 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6385 if let Some(context_menu) = self.context_menu.write().as_mut() {
6386 context_menu.select_last(self.project.as_ref(), cx);
6387 }
6388 }
6389
6390 pub fn move_to_previous_word_start(
6391 &mut self,
6392 _: &MoveToPreviousWordStart,
6393 cx: &mut ViewContext<Self>,
6394 ) {
6395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6396 s.move_cursors_with(|map, head, _| {
6397 (
6398 movement::previous_word_start(map, head),
6399 SelectionGoal::None,
6400 )
6401 });
6402 })
6403 }
6404
6405 pub fn move_to_previous_subword_start(
6406 &mut self,
6407 _: &MoveToPreviousSubwordStart,
6408 cx: &mut ViewContext<Self>,
6409 ) {
6410 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6411 s.move_cursors_with(|map, head, _| {
6412 (
6413 movement::previous_subword_start(map, head),
6414 SelectionGoal::None,
6415 )
6416 });
6417 })
6418 }
6419
6420 pub fn select_to_previous_word_start(
6421 &mut self,
6422 _: &SelectToPreviousWordStart,
6423 cx: &mut ViewContext<Self>,
6424 ) {
6425 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6426 s.move_heads_with(|map, head, _| {
6427 (
6428 movement::previous_word_start(map, head),
6429 SelectionGoal::None,
6430 )
6431 });
6432 })
6433 }
6434
6435 pub fn select_to_previous_subword_start(
6436 &mut self,
6437 _: &SelectToPreviousSubwordStart,
6438 cx: &mut ViewContext<Self>,
6439 ) {
6440 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6441 s.move_heads_with(|map, head, _| {
6442 (
6443 movement::previous_subword_start(map, head),
6444 SelectionGoal::None,
6445 )
6446 });
6447 })
6448 }
6449
6450 pub fn delete_to_previous_word_start(
6451 &mut self,
6452 _: &DeleteToPreviousWordStart,
6453 cx: &mut ViewContext<Self>,
6454 ) {
6455 self.transact(cx, |this, cx| {
6456 this.select_autoclose_pair(cx);
6457 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6458 let line_mode = s.line_mode;
6459 s.move_with(|map, selection| {
6460 if selection.is_empty() && !line_mode {
6461 let cursor = movement::previous_word_start(map, selection.head());
6462 selection.set_head(cursor, SelectionGoal::None);
6463 }
6464 });
6465 });
6466 this.insert("", cx);
6467 });
6468 }
6469
6470 pub fn delete_to_previous_subword_start(
6471 &mut self,
6472 _: &DeleteToPreviousSubwordStart,
6473 cx: &mut ViewContext<Self>,
6474 ) {
6475 self.transact(cx, |this, cx| {
6476 this.select_autoclose_pair(cx);
6477 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6478 let line_mode = s.line_mode;
6479 s.move_with(|map, selection| {
6480 if selection.is_empty() && !line_mode {
6481 let cursor = movement::previous_subword_start(map, selection.head());
6482 selection.set_head(cursor, SelectionGoal::None);
6483 }
6484 });
6485 });
6486 this.insert("", cx);
6487 });
6488 }
6489
6490 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6491 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6492 s.move_cursors_with(|map, head, _| {
6493 (movement::next_word_end(map, head), SelectionGoal::None)
6494 });
6495 })
6496 }
6497
6498 pub fn move_to_next_subword_end(
6499 &mut self,
6500 _: &MoveToNextSubwordEnd,
6501 cx: &mut ViewContext<Self>,
6502 ) {
6503 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6504 s.move_cursors_with(|map, head, _| {
6505 (movement::next_subword_end(map, head), SelectionGoal::None)
6506 });
6507 })
6508 }
6509
6510 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6511 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6512 s.move_heads_with(|map, head, _| {
6513 (movement::next_word_end(map, head), SelectionGoal::None)
6514 });
6515 })
6516 }
6517
6518 pub fn select_to_next_subword_end(
6519 &mut self,
6520 _: &SelectToNextSubwordEnd,
6521 cx: &mut ViewContext<Self>,
6522 ) {
6523 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6524 s.move_heads_with(|map, head, _| {
6525 (movement::next_subword_end(map, head), SelectionGoal::None)
6526 });
6527 })
6528 }
6529
6530 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6531 self.transact(cx, |this, cx| {
6532 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6533 let line_mode = s.line_mode;
6534 s.move_with(|map, selection| {
6535 if selection.is_empty() && !line_mode {
6536 let cursor = movement::next_word_end(map, selection.head());
6537 selection.set_head(cursor, SelectionGoal::None);
6538 }
6539 });
6540 });
6541 this.insert("", cx);
6542 });
6543 }
6544
6545 pub fn delete_to_next_subword_end(
6546 &mut self,
6547 _: &DeleteToNextSubwordEnd,
6548 cx: &mut ViewContext<Self>,
6549 ) {
6550 self.transact(cx, |this, cx| {
6551 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6552 s.move_with(|map, selection| {
6553 if selection.is_empty() {
6554 let cursor = movement::next_subword_end(map, selection.head());
6555 selection.set_head(cursor, SelectionGoal::None);
6556 }
6557 });
6558 });
6559 this.insert("", cx);
6560 });
6561 }
6562
6563 pub fn move_to_beginning_of_line(
6564 &mut self,
6565 action: &MoveToBeginningOfLine,
6566 cx: &mut ViewContext<Self>,
6567 ) {
6568 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6569 s.move_cursors_with(|map, head, _| {
6570 (
6571 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6572 SelectionGoal::None,
6573 )
6574 });
6575 })
6576 }
6577
6578 pub fn select_to_beginning_of_line(
6579 &mut self,
6580 action: &SelectToBeginningOfLine,
6581 cx: &mut ViewContext<Self>,
6582 ) {
6583 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6584 s.move_heads_with(|map, head, _| {
6585 (
6586 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6587 SelectionGoal::None,
6588 )
6589 });
6590 });
6591 }
6592
6593 pub fn delete_to_beginning_of_line(
6594 &mut self,
6595 _: &DeleteToBeginningOfLine,
6596 cx: &mut ViewContext<Self>,
6597 ) {
6598 self.transact(cx, |this, cx| {
6599 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6600 s.move_with(|_, selection| {
6601 selection.reversed = true;
6602 });
6603 });
6604
6605 this.select_to_beginning_of_line(
6606 &SelectToBeginningOfLine {
6607 stop_at_soft_wraps: false,
6608 },
6609 cx,
6610 );
6611 this.backspace(&Backspace, cx);
6612 });
6613 }
6614
6615 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6617 s.move_cursors_with(|map, head, _| {
6618 (
6619 movement::line_end(map, head, action.stop_at_soft_wraps),
6620 SelectionGoal::None,
6621 )
6622 });
6623 })
6624 }
6625
6626 pub fn select_to_end_of_line(
6627 &mut self,
6628 action: &SelectToEndOfLine,
6629 cx: &mut ViewContext<Self>,
6630 ) {
6631 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6632 s.move_heads_with(|map, head, _| {
6633 (
6634 movement::line_end(map, head, action.stop_at_soft_wraps),
6635 SelectionGoal::None,
6636 )
6637 });
6638 })
6639 }
6640
6641 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6642 self.transact(cx, |this, cx| {
6643 this.select_to_end_of_line(
6644 &SelectToEndOfLine {
6645 stop_at_soft_wraps: false,
6646 },
6647 cx,
6648 );
6649 this.delete(&Delete, cx);
6650 });
6651 }
6652
6653 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6654 self.transact(cx, |this, cx| {
6655 this.select_to_end_of_line(
6656 &SelectToEndOfLine {
6657 stop_at_soft_wraps: false,
6658 },
6659 cx,
6660 );
6661 this.cut(&Cut, cx);
6662 });
6663 }
6664
6665 pub fn move_to_start_of_paragraph(
6666 &mut self,
6667 _: &MoveToStartOfParagraph,
6668 cx: &mut ViewContext<Self>,
6669 ) {
6670 if matches!(self.mode, EditorMode::SingleLine) {
6671 cx.propagate();
6672 return;
6673 }
6674
6675 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6676 s.move_with(|map, selection| {
6677 selection.collapse_to(
6678 movement::start_of_paragraph(map, selection.head(), 1),
6679 SelectionGoal::None,
6680 )
6681 });
6682 })
6683 }
6684
6685 pub fn move_to_end_of_paragraph(
6686 &mut self,
6687 _: &MoveToEndOfParagraph,
6688 cx: &mut ViewContext<Self>,
6689 ) {
6690 if matches!(self.mode, EditorMode::SingleLine) {
6691 cx.propagate();
6692 return;
6693 }
6694
6695 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6696 s.move_with(|map, selection| {
6697 selection.collapse_to(
6698 movement::end_of_paragraph(map, selection.head(), 1),
6699 SelectionGoal::None,
6700 )
6701 });
6702 })
6703 }
6704
6705 pub fn select_to_start_of_paragraph(
6706 &mut self,
6707 _: &SelectToStartOfParagraph,
6708 cx: &mut ViewContext<Self>,
6709 ) {
6710 if matches!(self.mode, EditorMode::SingleLine) {
6711 cx.propagate();
6712 return;
6713 }
6714
6715 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6716 s.move_heads_with(|map, head, _| {
6717 (
6718 movement::start_of_paragraph(map, head, 1),
6719 SelectionGoal::None,
6720 )
6721 });
6722 })
6723 }
6724
6725 pub fn select_to_end_of_paragraph(
6726 &mut self,
6727 _: &SelectToEndOfParagraph,
6728 cx: &mut ViewContext<Self>,
6729 ) {
6730 if matches!(self.mode, EditorMode::SingleLine) {
6731 cx.propagate();
6732 return;
6733 }
6734
6735 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6736 s.move_heads_with(|map, head, _| {
6737 (
6738 movement::end_of_paragraph(map, head, 1),
6739 SelectionGoal::None,
6740 )
6741 });
6742 })
6743 }
6744
6745 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6746 if matches!(self.mode, EditorMode::SingleLine) {
6747 cx.propagate();
6748 return;
6749 }
6750
6751 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6752 s.select_ranges(vec![0..0]);
6753 });
6754 }
6755
6756 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6757 let mut selection = self.selections.last::<Point>(cx);
6758 selection.set_head(Point::zero(), SelectionGoal::None);
6759
6760 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6761 s.select(vec![selection]);
6762 });
6763 }
6764
6765 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6766 if matches!(self.mode, EditorMode::SingleLine) {
6767 cx.propagate();
6768 return;
6769 }
6770
6771 let cursor = self.buffer.read(cx).read(cx).len();
6772 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6773 s.select_ranges(vec![cursor..cursor])
6774 });
6775 }
6776
6777 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6778 self.nav_history = nav_history;
6779 }
6780
6781 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6782 self.nav_history.as_ref()
6783 }
6784
6785 fn push_to_nav_history(
6786 &mut self,
6787 cursor_anchor: Anchor,
6788 new_position: Option<Point>,
6789 cx: &mut ViewContext<Self>,
6790 ) {
6791 if let Some(nav_history) = self.nav_history.as_mut() {
6792 let buffer = self.buffer.read(cx).read(cx);
6793 let cursor_position = cursor_anchor.to_point(&buffer);
6794 let scroll_state = self.scroll_manager.anchor();
6795 let scroll_top_row = scroll_state.top_row(&buffer);
6796 drop(buffer);
6797
6798 if let Some(new_position) = new_position {
6799 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6800 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6801 return;
6802 }
6803 }
6804
6805 nav_history.push(
6806 Some(NavigationData {
6807 cursor_anchor,
6808 cursor_position,
6809 scroll_anchor: scroll_state,
6810 scroll_top_row,
6811 }),
6812 cx,
6813 );
6814 }
6815 }
6816
6817 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6818 let buffer = self.buffer.read(cx).snapshot(cx);
6819 let mut selection = self.selections.first::<usize>(cx);
6820 selection.set_head(buffer.len(), SelectionGoal::None);
6821 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6822 s.select(vec![selection]);
6823 });
6824 }
6825
6826 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6827 let end = self.buffer.read(cx).read(cx).len();
6828 self.change_selections(None, cx, |s| {
6829 s.select_ranges(vec![0..end]);
6830 });
6831 }
6832
6833 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6834 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6835 let mut selections = self.selections.all::<Point>(cx);
6836 let max_point = display_map.buffer_snapshot.max_point();
6837 for selection in &mut selections {
6838 let rows = selection.spanned_rows(true, &display_map);
6839 selection.start = Point::new(rows.start, 0);
6840 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6841 selection.reversed = false;
6842 }
6843 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6844 s.select(selections);
6845 });
6846 }
6847
6848 pub fn split_selection_into_lines(
6849 &mut self,
6850 _: &SplitSelectionIntoLines,
6851 cx: &mut ViewContext<Self>,
6852 ) {
6853 let mut to_unfold = Vec::new();
6854 let mut new_selection_ranges = Vec::new();
6855 {
6856 let selections = self.selections.all::<Point>(cx);
6857 let buffer = self.buffer.read(cx).read(cx);
6858 for selection in selections {
6859 for row in selection.start.row..selection.end.row {
6860 let cursor = Point::new(row, buffer.line_len(row));
6861 new_selection_ranges.push(cursor..cursor);
6862 }
6863 new_selection_ranges.push(selection.end..selection.end);
6864 to_unfold.push(selection.start..selection.end);
6865 }
6866 }
6867 self.unfold_ranges(to_unfold, true, true, cx);
6868 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6869 s.select_ranges(new_selection_ranges);
6870 });
6871 }
6872
6873 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6874 self.add_selection(true, cx);
6875 }
6876
6877 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6878 self.add_selection(false, cx);
6879 }
6880
6881 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6882 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6883 let mut selections = self.selections.all::<Point>(cx);
6884 let text_layout_details = self.text_layout_details(cx);
6885 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6886 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6887 let range = oldest_selection.display_range(&display_map).sorted();
6888
6889 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6890 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6891 let positions = start_x.min(end_x)..start_x.max(end_x);
6892
6893 selections.clear();
6894 let mut stack = Vec::new();
6895 for row in range.start.row()..=range.end.row() {
6896 if let Some(selection) = self.selections.build_columnar_selection(
6897 &display_map,
6898 row,
6899 &positions,
6900 oldest_selection.reversed,
6901 &text_layout_details,
6902 ) {
6903 stack.push(selection.id);
6904 selections.push(selection);
6905 }
6906 }
6907
6908 if above {
6909 stack.reverse();
6910 }
6911
6912 AddSelectionsState { above, stack }
6913 });
6914
6915 let last_added_selection = *state.stack.last().unwrap();
6916 let mut new_selections = Vec::new();
6917 if above == state.above {
6918 let end_row = if above {
6919 0
6920 } else {
6921 display_map.max_point().row()
6922 };
6923
6924 'outer: for selection in selections {
6925 if selection.id == last_added_selection {
6926 let range = selection.display_range(&display_map).sorted();
6927 debug_assert_eq!(range.start.row(), range.end.row());
6928 let mut row = range.start.row();
6929 let positions =
6930 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6931 px(start)..px(end)
6932 } else {
6933 let start_x =
6934 display_map.x_for_display_point(range.start, &text_layout_details);
6935 let end_x =
6936 display_map.x_for_display_point(range.end, &text_layout_details);
6937 start_x.min(end_x)..start_x.max(end_x)
6938 };
6939
6940 while row != end_row {
6941 if above {
6942 row -= 1;
6943 } else {
6944 row += 1;
6945 }
6946
6947 if let Some(new_selection) = self.selections.build_columnar_selection(
6948 &display_map,
6949 row,
6950 &positions,
6951 selection.reversed,
6952 &text_layout_details,
6953 ) {
6954 state.stack.push(new_selection.id);
6955 if above {
6956 new_selections.push(new_selection);
6957 new_selections.push(selection);
6958 } else {
6959 new_selections.push(selection);
6960 new_selections.push(new_selection);
6961 }
6962
6963 continue 'outer;
6964 }
6965 }
6966 }
6967
6968 new_selections.push(selection);
6969 }
6970 } else {
6971 new_selections = selections;
6972 new_selections.retain(|s| s.id != last_added_selection);
6973 state.stack.pop();
6974 }
6975
6976 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6977 s.select(new_selections);
6978 });
6979 if state.stack.len() > 1 {
6980 self.add_selections_state = Some(state);
6981 }
6982 }
6983
6984 pub fn select_next_match_internal(
6985 &mut self,
6986 display_map: &DisplaySnapshot,
6987 replace_newest: bool,
6988 autoscroll: Option<Autoscroll>,
6989 cx: &mut ViewContext<Self>,
6990 ) -> Result<()> {
6991 fn select_next_match_ranges(
6992 this: &mut Editor,
6993 range: Range<usize>,
6994 replace_newest: bool,
6995 auto_scroll: Option<Autoscroll>,
6996 cx: &mut ViewContext<Editor>,
6997 ) {
6998 this.unfold_ranges([range.clone()], false, true, cx);
6999 this.change_selections(auto_scroll, cx, |s| {
7000 if replace_newest {
7001 s.delete(s.newest_anchor().id);
7002 }
7003 s.insert_range(range.clone());
7004 });
7005 }
7006
7007 let buffer = &display_map.buffer_snapshot;
7008 let mut selections = self.selections.all::<usize>(cx);
7009 if let Some(mut select_next_state) = self.select_next_state.take() {
7010 let query = &select_next_state.query;
7011 if !select_next_state.done {
7012 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7013 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7014 let mut next_selected_range = None;
7015
7016 let bytes_after_last_selection =
7017 buffer.bytes_in_range(last_selection.end..buffer.len());
7018 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7019 let query_matches = query
7020 .stream_find_iter(bytes_after_last_selection)
7021 .map(|result| (last_selection.end, result))
7022 .chain(
7023 query
7024 .stream_find_iter(bytes_before_first_selection)
7025 .map(|result| (0, result)),
7026 );
7027
7028 for (start_offset, query_match) in query_matches {
7029 let query_match = query_match.unwrap(); // can only fail due to I/O
7030 let offset_range =
7031 start_offset + query_match.start()..start_offset + query_match.end();
7032 let display_range = offset_range.start.to_display_point(&display_map)
7033 ..offset_range.end.to_display_point(&display_map);
7034
7035 if !select_next_state.wordwise
7036 || (!movement::is_inside_word(&display_map, display_range.start)
7037 && !movement::is_inside_word(&display_map, display_range.end))
7038 {
7039 // TODO: This is n^2, because we might check all the selections
7040 if !selections
7041 .iter()
7042 .any(|selection| selection.range().overlaps(&offset_range))
7043 {
7044 next_selected_range = Some(offset_range);
7045 break;
7046 }
7047 }
7048 }
7049
7050 if let Some(next_selected_range) = next_selected_range {
7051 select_next_match_ranges(
7052 self,
7053 next_selected_range,
7054 replace_newest,
7055 autoscroll,
7056 cx,
7057 );
7058 } else {
7059 select_next_state.done = true;
7060 }
7061 }
7062
7063 self.select_next_state = Some(select_next_state);
7064 } else {
7065 let mut only_carets = true;
7066 let mut same_text_selected = true;
7067 let mut selected_text = None;
7068
7069 let mut selections_iter = selections.iter().peekable();
7070 while let Some(selection) = selections_iter.next() {
7071 if selection.start != selection.end {
7072 only_carets = false;
7073 }
7074
7075 if same_text_selected {
7076 if selected_text.is_none() {
7077 selected_text =
7078 Some(buffer.text_for_range(selection.range()).collect::<String>());
7079 }
7080
7081 if let Some(next_selection) = selections_iter.peek() {
7082 if next_selection.range().len() == selection.range().len() {
7083 let next_selected_text = buffer
7084 .text_for_range(next_selection.range())
7085 .collect::<String>();
7086 if Some(next_selected_text) != selected_text {
7087 same_text_selected = false;
7088 selected_text = None;
7089 }
7090 } else {
7091 same_text_selected = false;
7092 selected_text = None;
7093 }
7094 }
7095 }
7096 }
7097
7098 if only_carets {
7099 for selection in &mut selections {
7100 let word_range = movement::surrounding_word(
7101 &display_map,
7102 selection.start.to_display_point(&display_map),
7103 );
7104 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7105 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7106 selection.goal = SelectionGoal::None;
7107 selection.reversed = false;
7108 select_next_match_ranges(
7109 self,
7110 selection.start..selection.end,
7111 replace_newest,
7112 autoscroll,
7113 cx,
7114 );
7115 }
7116
7117 if selections.len() == 1 {
7118 let selection = selections
7119 .last()
7120 .expect("ensured that there's only one selection");
7121 let query = buffer
7122 .text_for_range(selection.start..selection.end)
7123 .collect::<String>();
7124 let is_empty = query.is_empty();
7125 let select_state = SelectNextState {
7126 query: AhoCorasick::new(&[query])?,
7127 wordwise: true,
7128 done: is_empty,
7129 };
7130 self.select_next_state = Some(select_state);
7131 } else {
7132 self.select_next_state = None;
7133 }
7134 } else if let Some(selected_text) = selected_text {
7135 self.select_next_state = Some(SelectNextState {
7136 query: AhoCorasick::new(&[selected_text])?,
7137 wordwise: false,
7138 done: false,
7139 });
7140 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7141 }
7142 }
7143 Ok(())
7144 }
7145
7146 pub fn select_all_matches(
7147 &mut self,
7148 _action: &SelectAllMatches,
7149 cx: &mut ViewContext<Self>,
7150 ) -> Result<()> {
7151 self.push_to_selection_history();
7152 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7153
7154 self.select_next_match_internal(&display_map, false, None, cx)?;
7155 let Some(select_next_state) = self.select_next_state.as_mut() else {
7156 return Ok(());
7157 };
7158 if select_next_state.done {
7159 return Ok(());
7160 }
7161
7162 let mut new_selections = self.selections.all::<usize>(cx);
7163
7164 let buffer = &display_map.buffer_snapshot;
7165 let query_matches = select_next_state
7166 .query
7167 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7168
7169 for query_match in query_matches {
7170 let query_match = query_match.unwrap(); // can only fail due to I/O
7171 let offset_range = query_match.start()..query_match.end();
7172 let display_range = offset_range.start.to_display_point(&display_map)
7173 ..offset_range.end.to_display_point(&display_map);
7174
7175 if !select_next_state.wordwise
7176 || (!movement::is_inside_word(&display_map, display_range.start)
7177 && !movement::is_inside_word(&display_map, display_range.end))
7178 {
7179 self.selections.change_with(cx, |selections| {
7180 new_selections.push(Selection {
7181 id: selections.new_selection_id(),
7182 start: offset_range.start,
7183 end: offset_range.end,
7184 reversed: false,
7185 goal: SelectionGoal::None,
7186 });
7187 });
7188 }
7189 }
7190
7191 new_selections.sort_by_key(|selection| selection.start);
7192 let mut ix = 0;
7193 while ix + 1 < new_selections.len() {
7194 let current_selection = &new_selections[ix];
7195 let next_selection = &new_selections[ix + 1];
7196 if current_selection.range().overlaps(&next_selection.range()) {
7197 if current_selection.id < next_selection.id {
7198 new_selections.remove(ix + 1);
7199 } else {
7200 new_selections.remove(ix);
7201 }
7202 } else {
7203 ix += 1;
7204 }
7205 }
7206
7207 select_next_state.done = true;
7208 self.unfold_ranges(
7209 new_selections.iter().map(|selection| selection.range()),
7210 false,
7211 false,
7212 cx,
7213 );
7214 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7215 selections.select(new_selections)
7216 });
7217
7218 Ok(())
7219 }
7220
7221 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7222 self.push_to_selection_history();
7223 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7224 self.select_next_match_internal(
7225 &display_map,
7226 action.replace_newest,
7227 Some(Autoscroll::newest()),
7228 cx,
7229 )?;
7230 Ok(())
7231 }
7232
7233 pub fn select_previous(
7234 &mut self,
7235 action: &SelectPrevious,
7236 cx: &mut ViewContext<Self>,
7237 ) -> Result<()> {
7238 self.push_to_selection_history();
7239 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7240 let buffer = &display_map.buffer_snapshot;
7241 let mut selections = self.selections.all::<usize>(cx);
7242 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7243 let query = &select_prev_state.query;
7244 if !select_prev_state.done {
7245 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7246 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7247 let mut next_selected_range = None;
7248 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7249 let bytes_before_last_selection =
7250 buffer.reversed_bytes_in_range(0..last_selection.start);
7251 let bytes_after_first_selection =
7252 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7253 let query_matches = query
7254 .stream_find_iter(bytes_before_last_selection)
7255 .map(|result| (last_selection.start, result))
7256 .chain(
7257 query
7258 .stream_find_iter(bytes_after_first_selection)
7259 .map(|result| (buffer.len(), result)),
7260 );
7261 for (end_offset, query_match) in query_matches {
7262 let query_match = query_match.unwrap(); // can only fail due to I/O
7263 let offset_range =
7264 end_offset - query_match.end()..end_offset - query_match.start();
7265 let display_range = offset_range.start.to_display_point(&display_map)
7266 ..offset_range.end.to_display_point(&display_map);
7267
7268 if !select_prev_state.wordwise
7269 || (!movement::is_inside_word(&display_map, display_range.start)
7270 && !movement::is_inside_word(&display_map, display_range.end))
7271 {
7272 next_selected_range = Some(offset_range);
7273 break;
7274 }
7275 }
7276
7277 if let Some(next_selected_range) = next_selected_range {
7278 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7279 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7280 if action.replace_newest {
7281 s.delete(s.newest_anchor().id);
7282 }
7283 s.insert_range(next_selected_range);
7284 });
7285 } else {
7286 select_prev_state.done = true;
7287 }
7288 }
7289
7290 self.select_prev_state = Some(select_prev_state);
7291 } else {
7292 let mut only_carets = true;
7293 let mut same_text_selected = true;
7294 let mut selected_text = None;
7295
7296 let mut selections_iter = selections.iter().peekable();
7297 while let Some(selection) = selections_iter.next() {
7298 if selection.start != selection.end {
7299 only_carets = false;
7300 }
7301
7302 if same_text_selected {
7303 if selected_text.is_none() {
7304 selected_text =
7305 Some(buffer.text_for_range(selection.range()).collect::<String>());
7306 }
7307
7308 if let Some(next_selection) = selections_iter.peek() {
7309 if next_selection.range().len() == selection.range().len() {
7310 let next_selected_text = buffer
7311 .text_for_range(next_selection.range())
7312 .collect::<String>();
7313 if Some(next_selected_text) != selected_text {
7314 same_text_selected = false;
7315 selected_text = None;
7316 }
7317 } else {
7318 same_text_selected = false;
7319 selected_text = None;
7320 }
7321 }
7322 }
7323 }
7324
7325 if only_carets {
7326 for selection in &mut selections {
7327 let word_range = movement::surrounding_word(
7328 &display_map,
7329 selection.start.to_display_point(&display_map),
7330 );
7331 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7332 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7333 selection.goal = SelectionGoal::None;
7334 selection.reversed = false;
7335 }
7336 if selections.len() == 1 {
7337 let selection = selections
7338 .last()
7339 .expect("ensured that there's only one selection");
7340 let query = buffer
7341 .text_for_range(selection.start..selection.end)
7342 .collect::<String>();
7343 let is_empty = query.is_empty();
7344 let select_state = SelectNextState {
7345 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7346 wordwise: true,
7347 done: is_empty,
7348 };
7349 self.select_prev_state = Some(select_state);
7350 } else {
7351 self.select_prev_state = None;
7352 }
7353
7354 self.unfold_ranges(
7355 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7356 false,
7357 true,
7358 cx,
7359 );
7360 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7361 s.select(selections);
7362 });
7363 } else if let Some(selected_text) = selected_text {
7364 self.select_prev_state = Some(SelectNextState {
7365 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7366 wordwise: false,
7367 done: false,
7368 });
7369 self.select_previous(action, cx)?;
7370 }
7371 }
7372 Ok(())
7373 }
7374
7375 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7376 let text_layout_details = &self.text_layout_details(cx);
7377 self.transact(cx, |this, cx| {
7378 let mut selections = this.selections.all::<Point>(cx);
7379 let mut edits = Vec::new();
7380 let mut selection_edit_ranges = Vec::new();
7381 let mut last_toggled_row = None;
7382 let snapshot = this.buffer.read(cx).read(cx);
7383 let empty_str: Arc<str> = "".into();
7384 let mut suffixes_inserted = Vec::new();
7385
7386 fn comment_prefix_range(
7387 snapshot: &MultiBufferSnapshot,
7388 row: u32,
7389 comment_prefix: &str,
7390 comment_prefix_whitespace: &str,
7391 ) -> Range<Point> {
7392 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7393
7394 let mut line_bytes = snapshot
7395 .bytes_in_range(start..snapshot.max_point())
7396 .flatten()
7397 .copied();
7398
7399 // If this line currently begins with the line comment prefix, then record
7400 // the range containing the prefix.
7401 if line_bytes
7402 .by_ref()
7403 .take(comment_prefix.len())
7404 .eq(comment_prefix.bytes())
7405 {
7406 // Include any whitespace that matches the comment prefix.
7407 let matching_whitespace_len = line_bytes
7408 .zip(comment_prefix_whitespace.bytes())
7409 .take_while(|(a, b)| a == b)
7410 .count() as u32;
7411 let end = Point::new(
7412 start.row,
7413 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7414 );
7415 start..end
7416 } else {
7417 start..start
7418 }
7419 }
7420
7421 fn comment_suffix_range(
7422 snapshot: &MultiBufferSnapshot,
7423 row: u32,
7424 comment_suffix: &str,
7425 comment_suffix_has_leading_space: bool,
7426 ) -> Range<Point> {
7427 let end = Point::new(row, snapshot.line_len(row));
7428 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7429
7430 let mut line_end_bytes = snapshot
7431 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7432 .flatten()
7433 .copied();
7434
7435 let leading_space_len = if suffix_start_column > 0
7436 && line_end_bytes.next() == Some(b' ')
7437 && comment_suffix_has_leading_space
7438 {
7439 1
7440 } else {
7441 0
7442 };
7443
7444 // If this line currently begins with the line comment prefix, then record
7445 // the range containing the prefix.
7446 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7447 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7448 start..end
7449 } else {
7450 end..end
7451 }
7452 }
7453
7454 // TODO: Handle selections that cross excerpts
7455 for selection in &mut selections {
7456 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7457 let language = if let Some(language) =
7458 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7459 {
7460 language
7461 } else {
7462 continue;
7463 };
7464
7465 selection_edit_ranges.clear();
7466
7467 // If multiple selections contain a given row, avoid processing that
7468 // row more than once.
7469 let mut start_row = selection.start.row;
7470 if last_toggled_row == Some(start_row) {
7471 start_row += 1;
7472 }
7473 let end_row =
7474 if selection.end.row > selection.start.row && selection.end.column == 0 {
7475 selection.end.row - 1
7476 } else {
7477 selection.end.row
7478 };
7479 last_toggled_row = Some(end_row);
7480
7481 if start_row > end_row {
7482 continue;
7483 }
7484
7485 // If the language has line comments, toggle those.
7486 let full_comment_prefixes = language.line_comment_prefixes();
7487 if !full_comment_prefixes.is_empty() {
7488 let first_prefix = full_comment_prefixes
7489 .first()
7490 .expect("prefixes is non-empty");
7491 let prefix_trimmed_lengths = full_comment_prefixes
7492 .iter()
7493 .map(|p| p.trim_end_matches(' ').len())
7494 .collect::<SmallVec<[usize; 4]>>();
7495
7496 let mut all_selection_lines_are_comments = true;
7497
7498 for row in start_row..=end_row {
7499 if start_row < end_row && snapshot.is_line_blank(row) {
7500 continue;
7501 }
7502
7503 let prefix_range = full_comment_prefixes
7504 .iter()
7505 .zip(prefix_trimmed_lengths.iter().copied())
7506 .map(|(prefix, trimmed_prefix_len)| {
7507 comment_prefix_range(
7508 snapshot.deref(),
7509 row,
7510 &prefix[..trimmed_prefix_len],
7511 &prefix[trimmed_prefix_len..],
7512 )
7513 })
7514 .max_by_key(|range| range.end.column - range.start.column)
7515 .expect("prefixes is non-empty");
7516
7517 if prefix_range.is_empty() {
7518 all_selection_lines_are_comments = false;
7519 }
7520
7521 selection_edit_ranges.push(prefix_range);
7522 }
7523
7524 if all_selection_lines_are_comments {
7525 edits.extend(
7526 selection_edit_ranges
7527 .iter()
7528 .cloned()
7529 .map(|range| (range, empty_str.clone())),
7530 );
7531 } else {
7532 let min_column = selection_edit_ranges
7533 .iter()
7534 .map(|range| range.start.column)
7535 .min()
7536 .unwrap_or(0);
7537 edits.extend(selection_edit_ranges.iter().map(|range| {
7538 let position = Point::new(range.start.row, min_column);
7539 (position..position, first_prefix.clone())
7540 }));
7541 }
7542 } else if let Some((full_comment_prefix, comment_suffix)) =
7543 language.block_comment_delimiters()
7544 {
7545 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7546 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7547 let prefix_range = comment_prefix_range(
7548 snapshot.deref(),
7549 start_row,
7550 comment_prefix,
7551 comment_prefix_whitespace,
7552 );
7553 let suffix_range = comment_suffix_range(
7554 snapshot.deref(),
7555 end_row,
7556 comment_suffix.trim_start_matches(' '),
7557 comment_suffix.starts_with(' '),
7558 );
7559
7560 if prefix_range.is_empty() || suffix_range.is_empty() {
7561 edits.push((
7562 prefix_range.start..prefix_range.start,
7563 full_comment_prefix.clone(),
7564 ));
7565 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7566 suffixes_inserted.push((end_row, comment_suffix.len()));
7567 } else {
7568 edits.push((prefix_range, empty_str.clone()));
7569 edits.push((suffix_range, empty_str.clone()));
7570 }
7571 } else {
7572 continue;
7573 }
7574 }
7575
7576 drop(snapshot);
7577 this.buffer.update(cx, |buffer, cx| {
7578 buffer.edit(edits, None, cx);
7579 });
7580
7581 // Adjust selections so that they end before any comment suffixes that
7582 // were inserted.
7583 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7584 let mut selections = this.selections.all::<Point>(cx);
7585 let snapshot = this.buffer.read(cx).read(cx);
7586 for selection in &mut selections {
7587 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7588 match row.cmp(&selection.end.row) {
7589 Ordering::Less => {
7590 suffixes_inserted.next();
7591 continue;
7592 }
7593 Ordering::Greater => break,
7594 Ordering::Equal => {
7595 if selection.end.column == snapshot.line_len(row) {
7596 if selection.is_empty() {
7597 selection.start.column -= suffix_len as u32;
7598 }
7599 selection.end.column -= suffix_len as u32;
7600 }
7601 break;
7602 }
7603 }
7604 }
7605 }
7606
7607 drop(snapshot);
7608 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7609
7610 let selections = this.selections.all::<Point>(cx);
7611 let selections_on_single_row = selections.windows(2).all(|selections| {
7612 selections[0].start.row == selections[1].start.row
7613 && selections[0].end.row == selections[1].end.row
7614 && selections[0].start.row == selections[0].end.row
7615 });
7616 let selections_selecting = selections
7617 .iter()
7618 .any(|selection| selection.start != selection.end);
7619 let advance_downwards = action.advance_downwards
7620 && selections_on_single_row
7621 && !selections_selecting
7622 && this.mode != EditorMode::SingleLine;
7623
7624 if advance_downwards {
7625 let snapshot = this.buffer.read(cx).snapshot(cx);
7626
7627 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7628 s.move_cursors_with(|display_snapshot, display_point, _| {
7629 let mut point = display_point.to_point(display_snapshot);
7630 point.row += 1;
7631 point = snapshot.clip_point(point, Bias::Left);
7632 let display_point = point.to_display_point(display_snapshot);
7633 let goal = SelectionGoal::HorizontalPosition(
7634 display_snapshot
7635 .x_for_display_point(display_point, &text_layout_details)
7636 .into(),
7637 );
7638 (display_point, goal)
7639 })
7640 });
7641 }
7642 });
7643 }
7644
7645 pub fn select_larger_syntax_node(
7646 &mut self,
7647 _: &SelectLargerSyntaxNode,
7648 cx: &mut ViewContext<Self>,
7649 ) {
7650 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7651 let buffer = self.buffer.read(cx).snapshot(cx);
7652 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7653
7654 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7655 let mut selected_larger_node = false;
7656 let new_selections = old_selections
7657 .iter()
7658 .map(|selection| {
7659 let old_range = selection.start..selection.end;
7660 let mut new_range = old_range.clone();
7661 while let Some(containing_range) =
7662 buffer.range_for_syntax_ancestor(new_range.clone())
7663 {
7664 new_range = containing_range;
7665 if !display_map.intersects_fold(new_range.start)
7666 && !display_map.intersects_fold(new_range.end)
7667 {
7668 break;
7669 }
7670 }
7671
7672 selected_larger_node |= new_range != old_range;
7673 Selection {
7674 id: selection.id,
7675 start: new_range.start,
7676 end: new_range.end,
7677 goal: SelectionGoal::None,
7678 reversed: selection.reversed,
7679 }
7680 })
7681 .collect::<Vec<_>>();
7682
7683 if selected_larger_node {
7684 stack.push(old_selections);
7685 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7686 s.select(new_selections);
7687 });
7688 }
7689 self.select_larger_syntax_node_stack = stack;
7690 }
7691
7692 pub fn select_smaller_syntax_node(
7693 &mut self,
7694 _: &SelectSmallerSyntaxNode,
7695 cx: &mut ViewContext<Self>,
7696 ) {
7697 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7698 if let Some(selections) = stack.pop() {
7699 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7700 s.select(selections.to_vec());
7701 });
7702 }
7703 self.select_larger_syntax_node_stack = stack;
7704 }
7705
7706 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7707 let project = self.project.clone();
7708 cx.spawn(|this, mut cx| async move {
7709 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7710 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7711 }) else {
7712 return;
7713 };
7714
7715 let Some(project) = project else {
7716 return;
7717 };
7718 if project
7719 .update(&mut cx, |this, _| this.is_remote())
7720 .unwrap_or(true)
7721 {
7722 // Do not display any test indicators in remote projects.
7723 return;
7724 }
7725 let new_rows =
7726 cx.background_executor()
7727 .spawn({
7728 let snapshot = display_snapshot.clone();
7729 async move {
7730 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7731 }
7732 })
7733 .await;
7734 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7735
7736 this.update(&mut cx, |this, _| {
7737 this.clear_tasks();
7738 for (key, value) in rows {
7739 this.insert_tasks(key, value);
7740 }
7741 })
7742 .ok();
7743 })
7744 }
7745 fn fetch_runnable_ranges(
7746 snapshot: &DisplaySnapshot,
7747 range: Range<Anchor>,
7748 ) -> Vec<(BufferId, Range<usize>, Runnable)> {
7749 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7750 }
7751
7752 fn runnable_rows(
7753 project: Model<Project>,
7754 snapshot: DisplaySnapshot,
7755 runnable_ranges: Vec<(BufferId, Range<usize>, Runnable)>,
7756 mut cx: AsyncWindowContext,
7757 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7758 runnable_ranges
7759 .into_iter()
7760 .filter_map(|(buffer_id, multi_buffer_range, mut runnable)| {
7761 let (tasks, _) = cx
7762 .update(|cx| Self::resolve_runnable(project.clone(), &mut runnable, cx))
7763 .ok()?;
7764 if tasks.is_empty() {
7765 return None;
7766 }
7767 let point = multi_buffer_range.start.to_point(&snapshot.buffer_snapshot);
7768 let row = snapshot
7769 .buffer_snapshot
7770 .buffer_line_for_row(point.row)?
7771 .1
7772 .start
7773 .row;
7774 Some((
7775 (buffer_id, row),
7776 (
7777 multi_buffer_range.start,
7778 RunnableTasks {
7779 templates: tasks,
7780 column: point.column,
7781 },
7782 ),
7783 ))
7784 })
7785 .collect()
7786 }
7787
7788 fn resolve_runnable(
7789 project: Model<Project>,
7790 runnable: &mut Runnable,
7791 cx: &WindowContext<'_>,
7792 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7793 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7794 let worktree_id = project
7795 .buffer_for_id(runnable.buffer)
7796 .and_then(|buffer| buffer.read(cx).file())
7797 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7798
7799 (project.task_inventory().clone(), worktree_id)
7800 });
7801
7802 let inventory = inventory.read(cx);
7803 let tags = mem::take(&mut runnable.tags);
7804 let mut tags: Vec<_> = tags
7805 .into_iter()
7806 .flat_map(|tag| {
7807 let tag = tag.0.clone();
7808 inventory
7809 .list_tasks(Some(runnable.language.clone()), worktree_id)
7810 .into_iter()
7811 .filter(move |(_, template)| {
7812 template.tags.iter().any(|source_tag| source_tag == &tag)
7813 })
7814 })
7815 .sorted_by_key(|(kind, _)| kind.to_owned())
7816 .collect();
7817 if let Some((leading_tag_source, _)) = tags.first() {
7818 // Strongest source wins; if we have worktree tag binding, prefer that to
7819 // global and language bindings;
7820 // if we have a global binding, prefer that to language binding.
7821 let first_mismatch = tags
7822 .iter()
7823 .position(|(tag_source, _)| tag_source != leading_tag_source);
7824 if let Some(index) = first_mismatch {
7825 tags.truncate(index);
7826 }
7827 }
7828
7829 (tags, worktree_id)
7830 }
7831
7832 pub fn move_to_enclosing_bracket(
7833 &mut self,
7834 _: &MoveToEnclosingBracket,
7835 cx: &mut ViewContext<Self>,
7836 ) {
7837 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7838 s.move_offsets_with(|snapshot, selection| {
7839 let Some(enclosing_bracket_ranges) =
7840 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7841 else {
7842 return;
7843 };
7844
7845 let mut best_length = usize::MAX;
7846 let mut best_inside = false;
7847 let mut best_in_bracket_range = false;
7848 let mut best_destination = None;
7849 for (open, close) in enclosing_bracket_ranges {
7850 let close = close.to_inclusive();
7851 let length = close.end() - open.start;
7852 let inside = selection.start >= open.end && selection.end <= *close.start();
7853 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7854 || close.contains(&selection.head());
7855
7856 // If best is next to a bracket and current isn't, skip
7857 if !in_bracket_range && best_in_bracket_range {
7858 continue;
7859 }
7860
7861 // Prefer smaller lengths unless best is inside and current isn't
7862 if length > best_length && (best_inside || !inside) {
7863 continue;
7864 }
7865
7866 best_length = length;
7867 best_inside = inside;
7868 best_in_bracket_range = in_bracket_range;
7869 best_destination = Some(
7870 if close.contains(&selection.start) && close.contains(&selection.end) {
7871 if inside {
7872 open.end
7873 } else {
7874 open.start
7875 }
7876 } else {
7877 if inside {
7878 *close.start()
7879 } else {
7880 *close.end()
7881 }
7882 },
7883 );
7884 }
7885
7886 if let Some(destination) = best_destination {
7887 selection.collapse_to(destination, SelectionGoal::None);
7888 }
7889 })
7890 });
7891 }
7892
7893 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7894 self.end_selection(cx);
7895 self.selection_history.mode = SelectionHistoryMode::Undoing;
7896 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7897 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7898 self.select_next_state = entry.select_next_state;
7899 self.select_prev_state = entry.select_prev_state;
7900 self.add_selections_state = entry.add_selections_state;
7901 self.request_autoscroll(Autoscroll::newest(), cx);
7902 }
7903 self.selection_history.mode = SelectionHistoryMode::Normal;
7904 }
7905
7906 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7907 self.end_selection(cx);
7908 self.selection_history.mode = SelectionHistoryMode::Redoing;
7909 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7910 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7911 self.select_next_state = entry.select_next_state;
7912 self.select_prev_state = entry.select_prev_state;
7913 self.add_selections_state = entry.add_selections_state;
7914 self.request_autoscroll(Autoscroll::newest(), cx);
7915 }
7916 self.selection_history.mode = SelectionHistoryMode::Normal;
7917 }
7918
7919 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7920 let selections = self.selections.disjoint_anchors();
7921
7922 let lines = if action.lines == 0 { 3 } else { action.lines };
7923
7924 self.buffer.update(cx, |buffer, cx| {
7925 buffer.expand_excerpts(
7926 selections
7927 .into_iter()
7928 .map(|selection| selection.head().excerpt_id)
7929 .dedup(),
7930 lines,
7931 cx,
7932 )
7933 })
7934 }
7935
7936 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7937 self.buffer
7938 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7939 }
7940
7941 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7942 self.go_to_diagnostic_impl(Direction::Next, cx)
7943 }
7944
7945 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7946 self.go_to_diagnostic_impl(Direction::Prev, cx)
7947 }
7948
7949 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7950 let buffer = self.buffer.read(cx).snapshot(cx);
7951 let selection = self.selections.newest::<usize>(cx);
7952
7953 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7954 if direction == Direction::Next {
7955 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7956 let (group_id, jump_to) = popover.activation_info();
7957 if self.activate_diagnostics(group_id, cx) {
7958 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7959 let mut new_selection = s.newest_anchor().clone();
7960 new_selection.collapse_to(jump_to, SelectionGoal::None);
7961 s.select_anchors(vec![new_selection.clone()]);
7962 });
7963 }
7964 return;
7965 }
7966 }
7967
7968 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7969 active_diagnostics
7970 .primary_range
7971 .to_offset(&buffer)
7972 .to_inclusive()
7973 });
7974 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7975 if active_primary_range.contains(&selection.head()) {
7976 *active_primary_range.end()
7977 } else {
7978 selection.head()
7979 }
7980 } else {
7981 selection.head()
7982 };
7983 let snapshot = self.snapshot(cx);
7984 loop {
7985 let mut diagnostics = if direction == Direction::Prev {
7986 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7987 } else {
7988 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7989 }
7990 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
7991 let group = diagnostics.find_map(|entry| {
7992 if entry.diagnostic.is_primary
7993 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7994 && !entry.range.is_empty()
7995 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7996 && !entry.range.contains(&search_start)
7997 {
7998 Some((entry.range, entry.diagnostic.group_id))
7999 } else {
8000 None
8001 }
8002 });
8003
8004 if let Some((primary_range, group_id)) = group {
8005 if self.activate_diagnostics(group_id, cx) {
8006 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8007 s.select(vec![Selection {
8008 id: selection.id,
8009 start: primary_range.start,
8010 end: primary_range.start,
8011 reversed: false,
8012 goal: SelectionGoal::None,
8013 }]);
8014 });
8015 }
8016 break;
8017 } else {
8018 // Cycle around to the start of the buffer, potentially moving back to the start of
8019 // the currently active diagnostic.
8020 active_primary_range.take();
8021 if direction == Direction::Prev {
8022 if search_start == buffer.len() {
8023 break;
8024 } else {
8025 search_start = buffer.len();
8026 }
8027 } else if search_start == 0 {
8028 break;
8029 } else {
8030 search_start = 0;
8031 }
8032 }
8033 }
8034 }
8035
8036 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8037 let snapshot = self
8038 .display_map
8039 .update(cx, |display_map, cx| display_map.snapshot(cx));
8040 let selection = self.selections.newest::<Point>(cx);
8041
8042 if !self.seek_in_direction(
8043 &snapshot,
8044 selection.head(),
8045 false,
8046 snapshot
8047 .buffer_snapshot
8048 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
8049 cx,
8050 ) {
8051 let wrapped_point = Point::zero();
8052 self.seek_in_direction(
8053 &snapshot,
8054 wrapped_point,
8055 true,
8056 snapshot
8057 .buffer_snapshot
8058 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
8059 cx,
8060 );
8061 }
8062 }
8063
8064 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8065 let snapshot = self
8066 .display_map
8067 .update(cx, |display_map, cx| display_map.snapshot(cx));
8068 let selection = self.selections.newest::<Point>(cx);
8069
8070 if !self.seek_in_direction(
8071 &snapshot,
8072 selection.head(),
8073 false,
8074 snapshot
8075 .buffer_snapshot
8076 .git_diff_hunks_in_range_rev(0..selection.head().row),
8077 cx,
8078 ) {
8079 let wrapped_point = snapshot.buffer_snapshot.max_point();
8080 self.seek_in_direction(
8081 &snapshot,
8082 wrapped_point,
8083 true,
8084 snapshot
8085 .buffer_snapshot
8086 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
8087 cx,
8088 );
8089 }
8090 }
8091
8092 fn seek_in_direction(
8093 &mut self,
8094 snapshot: &DisplaySnapshot,
8095 initial_point: Point,
8096 is_wrapped: bool,
8097 hunks: impl Iterator<Item = DiffHunk<u32>>,
8098 cx: &mut ViewContext<Editor>,
8099 ) -> bool {
8100 let display_point = initial_point.to_display_point(snapshot);
8101 let mut hunks = hunks
8102 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8103 .filter(|hunk| {
8104 if is_wrapped {
8105 true
8106 } else {
8107 !hunk.contains_display_row(display_point.row())
8108 }
8109 })
8110 .dedup();
8111
8112 if let Some(hunk) = hunks.next() {
8113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8114 let row = hunk.start_display_row();
8115 let point = DisplayPoint::new(row, 0);
8116 s.select_display_ranges([point..point]);
8117 });
8118
8119 true
8120 } else {
8121 false
8122 }
8123 }
8124
8125 pub fn go_to_definition(
8126 &mut self,
8127 _: &GoToDefinition,
8128 cx: &mut ViewContext<Self>,
8129 ) -> Task<Result<bool>> {
8130 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8131 }
8132
8133 pub fn go_to_implementation(
8134 &mut self,
8135 _: &GoToImplementation,
8136 cx: &mut ViewContext<Self>,
8137 ) -> Task<Result<bool>> {
8138 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8139 }
8140
8141 pub fn go_to_implementation_split(
8142 &mut self,
8143 _: &GoToImplementationSplit,
8144 cx: &mut ViewContext<Self>,
8145 ) -> Task<Result<bool>> {
8146 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8147 }
8148
8149 pub fn go_to_type_definition(
8150 &mut self,
8151 _: &GoToTypeDefinition,
8152 cx: &mut ViewContext<Self>,
8153 ) -> Task<Result<bool>> {
8154 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8155 }
8156
8157 pub fn go_to_definition_split(
8158 &mut self,
8159 _: &GoToDefinitionSplit,
8160 cx: &mut ViewContext<Self>,
8161 ) -> Task<Result<bool>> {
8162 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8163 }
8164
8165 pub fn go_to_type_definition_split(
8166 &mut self,
8167 _: &GoToTypeDefinitionSplit,
8168 cx: &mut ViewContext<Self>,
8169 ) -> Task<Result<bool>> {
8170 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8171 }
8172
8173 fn go_to_definition_of_kind(
8174 &mut self,
8175 kind: GotoDefinitionKind,
8176 split: bool,
8177 cx: &mut ViewContext<Self>,
8178 ) -> Task<Result<bool>> {
8179 let Some(workspace) = self.workspace() else {
8180 return Task::ready(Ok(false));
8181 };
8182 let buffer = self.buffer.read(cx);
8183 let head = self.selections.newest::<usize>(cx).head();
8184 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8185 text_anchor
8186 } else {
8187 return Task::ready(Ok(false));
8188 };
8189
8190 let project = workspace.read(cx).project().clone();
8191 let definitions = project.update(cx, |project, cx| match kind {
8192 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8193 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8194 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8195 });
8196
8197 cx.spawn(|editor, mut cx| async move {
8198 let definitions = definitions.await?;
8199 let navigated = editor
8200 .update(&mut cx, |editor, cx| {
8201 editor.navigate_to_hover_links(
8202 Some(kind),
8203 definitions
8204 .into_iter()
8205 .filter(|location| {
8206 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8207 })
8208 .map(HoverLink::Text)
8209 .collect::<Vec<_>>(),
8210 split,
8211 cx,
8212 )
8213 })?
8214 .await?;
8215 anyhow::Ok(navigated)
8216 })
8217 }
8218
8219 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8220 let position = self.selections.newest_anchor().head();
8221 let Some((buffer, buffer_position)) =
8222 self.buffer.read(cx).text_anchor_for_position(position, cx)
8223 else {
8224 return;
8225 };
8226
8227 cx.spawn(|editor, mut cx| async move {
8228 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8229 editor.update(&mut cx, |_, cx| {
8230 cx.open_url(&url);
8231 })
8232 } else {
8233 Ok(())
8234 }
8235 })
8236 .detach();
8237 }
8238
8239 pub(crate) fn navigate_to_hover_links(
8240 &mut self,
8241 kind: Option<GotoDefinitionKind>,
8242 mut definitions: Vec<HoverLink>,
8243 split: bool,
8244 cx: &mut ViewContext<Editor>,
8245 ) -> Task<Result<bool>> {
8246 // If there is one definition, just open it directly
8247 if definitions.len() == 1 {
8248 let definition = definitions.pop().unwrap();
8249 let target_task = match definition {
8250 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8251 HoverLink::InlayHint(lsp_location, server_id) => {
8252 self.compute_target_location(lsp_location, server_id, cx)
8253 }
8254 HoverLink::Url(url) => {
8255 cx.open_url(&url);
8256 Task::ready(Ok(None))
8257 }
8258 };
8259 cx.spawn(|editor, mut cx| async move {
8260 let target = target_task.await.context("target resolution task")?;
8261 if let Some(target) = target {
8262 editor.update(&mut cx, |editor, cx| {
8263 let Some(workspace) = editor.workspace() else {
8264 return false;
8265 };
8266 let pane = workspace.read(cx).active_pane().clone();
8267
8268 let range = target.range.to_offset(target.buffer.read(cx));
8269 let range = editor.range_for_match(&range);
8270 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8271 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8272 s.select_ranges([range]);
8273 });
8274 } else {
8275 cx.window_context().defer(move |cx| {
8276 let target_editor: View<Self> =
8277 workspace.update(cx, |workspace, cx| {
8278 let pane = if split {
8279 workspace.adjacent_pane(cx)
8280 } else {
8281 workspace.active_pane().clone()
8282 };
8283
8284 workspace.open_project_item(pane, target.buffer.clone(), cx)
8285 });
8286 target_editor.update(cx, |target_editor, cx| {
8287 // When selecting a definition in a different buffer, disable the nav history
8288 // to avoid creating a history entry at the previous cursor location.
8289 pane.update(cx, |pane, _| pane.disable_history());
8290 target_editor.change_selections(
8291 Some(Autoscroll::focused()),
8292 cx,
8293 |s| {
8294 s.select_ranges([range]);
8295 },
8296 );
8297 pane.update(cx, |pane, _| pane.enable_history());
8298 });
8299 });
8300 }
8301 true
8302 })
8303 } else {
8304 Ok(false)
8305 }
8306 })
8307 } else if !definitions.is_empty() {
8308 let replica_id = self.replica_id(cx);
8309 cx.spawn(|editor, mut cx| async move {
8310 let (title, location_tasks, workspace) = editor
8311 .update(&mut cx, |editor, cx| {
8312 let tab_kind = match kind {
8313 Some(GotoDefinitionKind::Implementation) => "Implementations",
8314 _ => "Definitions",
8315 };
8316 let title = definitions
8317 .iter()
8318 .find_map(|definition| match definition {
8319 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8320 let buffer = origin.buffer.read(cx);
8321 format!(
8322 "{} for {}",
8323 tab_kind,
8324 buffer
8325 .text_for_range(origin.range.clone())
8326 .collect::<String>()
8327 )
8328 }),
8329 HoverLink::InlayHint(_, _) => None,
8330 HoverLink::Url(_) => None,
8331 })
8332 .unwrap_or(tab_kind.to_string());
8333 let location_tasks = definitions
8334 .into_iter()
8335 .map(|definition| match definition {
8336 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8337 HoverLink::InlayHint(lsp_location, server_id) => {
8338 editor.compute_target_location(lsp_location, server_id, cx)
8339 }
8340 HoverLink::Url(_) => Task::ready(Ok(None)),
8341 })
8342 .collect::<Vec<_>>();
8343 (title, location_tasks, editor.workspace().clone())
8344 })
8345 .context("location tasks preparation")?;
8346
8347 let locations = futures::future::join_all(location_tasks)
8348 .await
8349 .into_iter()
8350 .filter_map(|location| location.transpose())
8351 .collect::<Result<_>>()
8352 .context("location tasks")?;
8353
8354 let Some(workspace) = workspace else {
8355 return Ok(false);
8356 };
8357 let opened = workspace
8358 .update(&mut cx, |workspace, cx| {
8359 Self::open_locations_in_multibuffer(
8360 workspace, locations, replica_id, title, split, cx,
8361 )
8362 })
8363 .ok();
8364
8365 anyhow::Ok(opened.is_some())
8366 })
8367 } else {
8368 Task::ready(Ok(false))
8369 }
8370 }
8371
8372 fn compute_target_location(
8373 &self,
8374 lsp_location: lsp::Location,
8375 server_id: LanguageServerId,
8376 cx: &mut ViewContext<Editor>,
8377 ) -> Task<anyhow::Result<Option<Location>>> {
8378 let Some(project) = self.project.clone() else {
8379 return Task::Ready(Some(Ok(None)));
8380 };
8381
8382 cx.spawn(move |editor, mut cx| async move {
8383 let location_task = editor.update(&mut cx, |editor, cx| {
8384 project.update(cx, |project, cx| {
8385 let language_server_name =
8386 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8387 project
8388 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8389 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8390 });
8391 language_server_name.map(|language_server_name| {
8392 project.open_local_buffer_via_lsp(
8393 lsp_location.uri.clone(),
8394 server_id,
8395 language_server_name,
8396 cx,
8397 )
8398 })
8399 })
8400 })?;
8401 let location = match location_task {
8402 Some(task) => Some({
8403 let target_buffer_handle = task.await.context("open local buffer")?;
8404 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8405 let target_start = target_buffer
8406 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8407 let target_end = target_buffer
8408 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8409 target_buffer.anchor_after(target_start)
8410 ..target_buffer.anchor_before(target_end)
8411 })?;
8412 Location {
8413 buffer: target_buffer_handle,
8414 range,
8415 }
8416 }),
8417 None => None,
8418 };
8419 Ok(location)
8420 })
8421 }
8422
8423 pub fn find_all_references(
8424 &mut self,
8425 _: &FindAllReferences,
8426 cx: &mut ViewContext<Self>,
8427 ) -> Option<Task<Result<()>>> {
8428 let multi_buffer = self.buffer.read(cx);
8429 let selection = self.selections.newest::<usize>(cx);
8430 let head = selection.head();
8431
8432 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8433 let head_anchor = multi_buffer_snapshot.anchor_at(
8434 head,
8435 if head < selection.tail() {
8436 Bias::Right
8437 } else {
8438 Bias::Left
8439 },
8440 );
8441
8442 match self
8443 .find_all_references_task_sources
8444 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8445 {
8446 Ok(_) => {
8447 log::info!(
8448 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8449 );
8450 return None;
8451 }
8452 Err(i) => {
8453 self.find_all_references_task_sources.insert(i, head_anchor);
8454 }
8455 }
8456
8457 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8458 let replica_id = self.replica_id(cx);
8459 let workspace = self.workspace()?;
8460 let project = workspace.read(cx).project().clone();
8461 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8462 Some(cx.spawn(|editor, mut cx| async move {
8463 let _cleanup = defer({
8464 let mut cx = cx.clone();
8465 move || {
8466 let _ = editor.update(&mut cx, |editor, _| {
8467 if let Ok(i) =
8468 editor
8469 .find_all_references_task_sources
8470 .binary_search_by(|anchor| {
8471 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8472 })
8473 {
8474 editor.find_all_references_task_sources.remove(i);
8475 }
8476 });
8477 }
8478 });
8479
8480 let locations = references.await?;
8481 if locations.is_empty() {
8482 return anyhow::Ok(());
8483 }
8484
8485 workspace.update(&mut cx, |workspace, cx| {
8486 let title = locations
8487 .first()
8488 .as_ref()
8489 .map(|location| {
8490 let buffer = location.buffer.read(cx);
8491 format!(
8492 "References to `{}`",
8493 buffer
8494 .text_for_range(location.range.clone())
8495 .collect::<String>()
8496 )
8497 })
8498 .unwrap();
8499 Self::open_locations_in_multibuffer(
8500 workspace, locations, replica_id, title, false, cx,
8501 );
8502 })
8503 }))
8504 }
8505
8506 /// Opens a multibuffer with the given project locations in it
8507 pub fn open_locations_in_multibuffer(
8508 workspace: &mut Workspace,
8509 mut locations: Vec<Location>,
8510 replica_id: ReplicaId,
8511 title: String,
8512 split: bool,
8513 cx: &mut ViewContext<Workspace>,
8514 ) {
8515 // If there are multiple definitions, open them in a multibuffer
8516 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8517 let mut locations = locations.into_iter().peekable();
8518 let mut ranges_to_highlight = Vec::new();
8519 let capability = workspace.project().read(cx).capability();
8520
8521 let excerpt_buffer = cx.new_model(|cx| {
8522 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8523 while let Some(location) = locations.next() {
8524 let buffer = location.buffer.read(cx);
8525 let mut ranges_for_buffer = Vec::new();
8526 let range = location.range.to_offset(buffer);
8527 ranges_for_buffer.push(range.clone());
8528
8529 while let Some(next_location) = locations.peek() {
8530 if next_location.buffer == location.buffer {
8531 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8532 locations.next();
8533 } else {
8534 break;
8535 }
8536 }
8537
8538 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8539 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8540 location.buffer.clone(),
8541 ranges_for_buffer,
8542 DEFAULT_MULTIBUFFER_CONTEXT,
8543 cx,
8544 ))
8545 }
8546
8547 multibuffer.with_title(title)
8548 });
8549
8550 let editor = cx.new_view(|cx| {
8551 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8552 });
8553 editor.update(cx, |editor, cx| {
8554 editor.highlight_background::<Self>(
8555 &ranges_to_highlight,
8556 |theme| theme.editor_highlighted_line_background,
8557 cx,
8558 );
8559 });
8560
8561 let item = Box::new(editor);
8562 let item_id = item.item_id();
8563
8564 if split {
8565 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8566 } else {
8567 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8568 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8569 pane.close_current_preview_item(cx)
8570 } else {
8571 None
8572 }
8573 });
8574 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8575 }
8576 workspace.active_pane().update(cx, |pane, cx| {
8577 pane.set_preview_item_id(Some(item_id), cx);
8578 });
8579 }
8580
8581 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8582 use language::ToOffset as _;
8583
8584 let project = self.project.clone()?;
8585 let selection = self.selections.newest_anchor().clone();
8586 let (cursor_buffer, cursor_buffer_position) = self
8587 .buffer
8588 .read(cx)
8589 .text_anchor_for_position(selection.head(), cx)?;
8590 let (tail_buffer, cursor_buffer_position_end) = self
8591 .buffer
8592 .read(cx)
8593 .text_anchor_for_position(selection.tail(), cx)?;
8594 if tail_buffer != cursor_buffer {
8595 return None;
8596 }
8597
8598 let snapshot = cursor_buffer.read(cx).snapshot();
8599 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8600 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8601 let prepare_rename = project.update(cx, |project, cx| {
8602 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8603 });
8604 drop(snapshot);
8605
8606 Some(cx.spawn(|this, mut cx| async move {
8607 let rename_range = if let Some(range) = prepare_rename.await? {
8608 Some(range)
8609 } else {
8610 this.update(&mut cx, |this, cx| {
8611 let buffer = this.buffer.read(cx).snapshot(cx);
8612 let mut buffer_highlights = this
8613 .document_highlights_for_position(selection.head(), &buffer)
8614 .filter(|highlight| {
8615 highlight.start.excerpt_id == selection.head().excerpt_id
8616 && highlight.end.excerpt_id == selection.head().excerpt_id
8617 });
8618 buffer_highlights
8619 .next()
8620 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8621 })?
8622 };
8623 if let Some(rename_range) = rename_range {
8624 this.update(&mut cx, |this, cx| {
8625 let snapshot = cursor_buffer.read(cx).snapshot();
8626 let rename_buffer_range = rename_range.to_offset(&snapshot);
8627 let cursor_offset_in_rename_range =
8628 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8629 let cursor_offset_in_rename_range_end =
8630 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8631
8632 this.take_rename(false, cx);
8633 let buffer = this.buffer.read(cx).read(cx);
8634 let cursor_offset = selection.head().to_offset(&buffer);
8635 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8636 let rename_end = rename_start + rename_buffer_range.len();
8637 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8638 let mut old_highlight_id = None;
8639 let old_name: Arc<str> = buffer
8640 .chunks(rename_start..rename_end, true)
8641 .map(|chunk| {
8642 if old_highlight_id.is_none() {
8643 old_highlight_id = chunk.syntax_highlight_id;
8644 }
8645 chunk.text
8646 })
8647 .collect::<String>()
8648 .into();
8649
8650 drop(buffer);
8651
8652 // Position the selection in the rename editor so that it matches the current selection.
8653 this.show_local_selections = false;
8654 let rename_editor = cx.new_view(|cx| {
8655 let mut editor = Editor::single_line(cx);
8656 editor.buffer.update(cx, |buffer, cx| {
8657 buffer.edit([(0..0, old_name.clone())], None, cx)
8658 });
8659 let rename_selection_range = match cursor_offset_in_rename_range
8660 .cmp(&cursor_offset_in_rename_range_end)
8661 {
8662 Ordering::Equal => {
8663 editor.select_all(&SelectAll, cx);
8664 return editor;
8665 }
8666 Ordering::Less => {
8667 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8668 }
8669 Ordering::Greater => {
8670 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8671 }
8672 };
8673 if rename_selection_range.end > old_name.len() {
8674 editor.select_all(&SelectAll, cx);
8675 } else {
8676 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8677 s.select_ranges([rename_selection_range]);
8678 });
8679 }
8680 editor
8681 });
8682
8683 let write_highlights =
8684 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8685 let read_highlights =
8686 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8687 let ranges = write_highlights
8688 .iter()
8689 .flat_map(|(_, ranges)| ranges.iter())
8690 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8691 .cloned()
8692 .collect();
8693
8694 this.highlight_text::<Rename>(
8695 ranges,
8696 HighlightStyle {
8697 fade_out: Some(0.6),
8698 ..Default::default()
8699 },
8700 cx,
8701 );
8702 let rename_focus_handle = rename_editor.focus_handle(cx);
8703 cx.focus(&rename_focus_handle);
8704 let block_id = this.insert_blocks(
8705 [BlockProperties {
8706 style: BlockStyle::Flex,
8707 position: range.start,
8708 height: 1,
8709 render: Box::new({
8710 let rename_editor = rename_editor.clone();
8711 move |cx: &mut BlockContext| {
8712 let mut text_style = cx.editor_style.text.clone();
8713 if let Some(highlight_style) = old_highlight_id
8714 .and_then(|h| h.style(&cx.editor_style.syntax))
8715 {
8716 text_style = text_style.highlight(highlight_style);
8717 }
8718 div()
8719 .pl(cx.anchor_x)
8720 .child(EditorElement::new(
8721 &rename_editor,
8722 EditorStyle {
8723 background: cx.theme().system().transparent,
8724 local_player: cx.editor_style.local_player,
8725 text: text_style,
8726 scrollbar_width: cx.editor_style.scrollbar_width,
8727 syntax: cx.editor_style.syntax.clone(),
8728 status: cx.editor_style.status.clone(),
8729 inlay_hints_style: HighlightStyle {
8730 color: Some(cx.theme().status().hint),
8731 font_weight: Some(FontWeight::BOLD),
8732 ..HighlightStyle::default()
8733 },
8734 suggestions_style: HighlightStyle {
8735 color: Some(cx.theme().status().predictive),
8736 ..HighlightStyle::default()
8737 },
8738 },
8739 ))
8740 .into_any_element()
8741 }
8742 }),
8743 disposition: BlockDisposition::Below,
8744 }],
8745 Some(Autoscroll::fit()),
8746 cx,
8747 )[0];
8748 this.pending_rename = Some(RenameState {
8749 range,
8750 old_name,
8751 editor: rename_editor,
8752 block_id,
8753 });
8754 })?;
8755 }
8756
8757 Ok(())
8758 }))
8759 }
8760
8761 pub fn confirm_rename(
8762 &mut self,
8763 _: &ConfirmRename,
8764 cx: &mut ViewContext<Self>,
8765 ) -> Option<Task<Result<()>>> {
8766 let rename = self.take_rename(false, cx)?;
8767 let workspace = self.workspace()?;
8768 let (start_buffer, start) = self
8769 .buffer
8770 .read(cx)
8771 .text_anchor_for_position(rename.range.start, cx)?;
8772 let (end_buffer, end) = self
8773 .buffer
8774 .read(cx)
8775 .text_anchor_for_position(rename.range.end, cx)?;
8776 if start_buffer != end_buffer {
8777 return None;
8778 }
8779
8780 let buffer = start_buffer;
8781 let range = start..end;
8782 let old_name = rename.old_name;
8783 let new_name = rename.editor.read(cx).text(cx);
8784
8785 let rename = workspace
8786 .read(cx)
8787 .project()
8788 .clone()
8789 .update(cx, |project, cx| {
8790 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8791 });
8792 let workspace = workspace.downgrade();
8793
8794 Some(cx.spawn(|editor, mut cx| async move {
8795 let project_transaction = rename.await?;
8796 Self::open_project_transaction(
8797 &editor,
8798 workspace,
8799 project_transaction,
8800 format!("Rename: {} → {}", old_name, new_name),
8801 cx.clone(),
8802 )
8803 .await?;
8804
8805 editor.update(&mut cx, |editor, cx| {
8806 editor.refresh_document_highlights(cx);
8807 })?;
8808 Ok(())
8809 }))
8810 }
8811
8812 fn take_rename(
8813 &mut self,
8814 moving_cursor: bool,
8815 cx: &mut ViewContext<Self>,
8816 ) -> Option<RenameState> {
8817 let rename = self.pending_rename.take()?;
8818 if rename.editor.focus_handle(cx).is_focused(cx) {
8819 cx.focus(&self.focus_handle);
8820 }
8821
8822 self.remove_blocks(
8823 [rename.block_id].into_iter().collect(),
8824 Some(Autoscroll::fit()),
8825 cx,
8826 );
8827 self.clear_highlights::<Rename>(cx);
8828 self.show_local_selections = true;
8829
8830 if moving_cursor {
8831 let rename_editor = rename.editor.read(cx);
8832 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8833
8834 // Update the selection to match the position of the selection inside
8835 // the rename editor.
8836 let snapshot = self.buffer.read(cx).read(cx);
8837 let rename_range = rename.range.to_offset(&snapshot);
8838 let cursor_in_editor = snapshot
8839 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8840 .min(rename_range.end);
8841 drop(snapshot);
8842
8843 self.change_selections(None, cx, |s| {
8844 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8845 });
8846 } else {
8847 self.refresh_document_highlights(cx);
8848 }
8849
8850 Some(rename)
8851 }
8852
8853 pub fn pending_rename(&self) -> Option<&RenameState> {
8854 self.pending_rename.as_ref()
8855 }
8856
8857 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8858 let project = match &self.project {
8859 Some(project) => project.clone(),
8860 None => return None,
8861 };
8862
8863 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8864 }
8865
8866 fn perform_format(
8867 &mut self,
8868 project: Model<Project>,
8869 trigger: FormatTrigger,
8870 cx: &mut ViewContext<Self>,
8871 ) -> Task<Result<()>> {
8872 let buffer = self.buffer().clone();
8873 let mut buffers = buffer.read(cx).all_buffers();
8874 if trigger == FormatTrigger::Save {
8875 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8876 }
8877
8878 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8879 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8880
8881 cx.spawn(|_, mut cx| async move {
8882 let transaction = futures::select_biased! {
8883 () = timeout => {
8884 log::warn!("timed out waiting for formatting");
8885 None
8886 }
8887 transaction = format.log_err().fuse() => transaction,
8888 };
8889
8890 buffer
8891 .update(&mut cx, |buffer, cx| {
8892 if let Some(transaction) = transaction {
8893 if !buffer.is_singleton() {
8894 buffer.push_transaction(&transaction.0, cx);
8895 }
8896 }
8897
8898 cx.notify();
8899 })
8900 .ok();
8901
8902 Ok(())
8903 })
8904 }
8905
8906 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8907 if let Some(project) = self.project.clone() {
8908 self.buffer.update(cx, |multi_buffer, cx| {
8909 project.update(cx, |project, cx| {
8910 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8911 });
8912 })
8913 }
8914 }
8915
8916 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8917 cx.show_character_palette();
8918 }
8919
8920 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8921 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8922 let buffer = self.buffer.read(cx).snapshot(cx);
8923 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8924 let is_valid = buffer
8925 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8926 .any(|entry| {
8927 entry.diagnostic.is_primary
8928 && !entry.range.is_empty()
8929 && entry.range.start == primary_range_start
8930 && entry.diagnostic.message == active_diagnostics.primary_message
8931 });
8932
8933 if is_valid != active_diagnostics.is_valid {
8934 active_diagnostics.is_valid = is_valid;
8935 let mut new_styles = HashMap::default();
8936 for (block_id, diagnostic) in &active_diagnostics.blocks {
8937 new_styles.insert(
8938 *block_id,
8939 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8940 );
8941 }
8942 self.display_map
8943 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8944 }
8945 }
8946 }
8947
8948 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8949 self.dismiss_diagnostics(cx);
8950 let snapshot = self.snapshot(cx);
8951 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8952 let buffer = self.buffer.read(cx).snapshot(cx);
8953
8954 let mut primary_range = None;
8955 let mut primary_message = None;
8956 let mut group_end = Point::zero();
8957 let diagnostic_group = buffer
8958 .diagnostic_group::<Point>(group_id)
8959 .filter_map(|entry| {
8960 if snapshot.is_line_folded(entry.range.start.row)
8961 && (entry.range.start.row == entry.range.end.row
8962 || snapshot.is_line_folded(entry.range.end.row))
8963 {
8964 return None;
8965 }
8966 if entry.range.end > group_end {
8967 group_end = entry.range.end;
8968 }
8969 if entry.diagnostic.is_primary {
8970 primary_range = Some(entry.range.clone());
8971 primary_message = Some(entry.diagnostic.message.clone());
8972 }
8973 Some(entry)
8974 })
8975 .collect::<Vec<_>>();
8976 let primary_range = primary_range?;
8977 let primary_message = primary_message?;
8978 let primary_range =
8979 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8980
8981 let blocks = display_map
8982 .insert_blocks(
8983 diagnostic_group.iter().map(|entry| {
8984 let diagnostic = entry.diagnostic.clone();
8985 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8986 BlockProperties {
8987 style: BlockStyle::Fixed,
8988 position: buffer.anchor_after(entry.range.start),
8989 height: message_height,
8990 render: diagnostic_block_renderer(diagnostic, true),
8991 disposition: BlockDisposition::Below,
8992 }
8993 }),
8994 cx,
8995 )
8996 .into_iter()
8997 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8998 .collect();
8999
9000 Some(ActiveDiagnosticGroup {
9001 primary_range,
9002 primary_message,
9003 blocks,
9004 is_valid: true,
9005 })
9006 });
9007 self.active_diagnostics.is_some()
9008 }
9009
9010 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9011 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9012 self.display_map.update(cx, |display_map, cx| {
9013 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9014 });
9015 cx.notify();
9016 }
9017 }
9018
9019 pub fn set_selections_from_remote(
9020 &mut self,
9021 selections: Vec<Selection<Anchor>>,
9022 pending_selection: Option<Selection<Anchor>>,
9023 cx: &mut ViewContext<Self>,
9024 ) {
9025 let old_cursor_position = self.selections.newest_anchor().head();
9026 self.selections.change_with(cx, |s| {
9027 s.select_anchors(selections);
9028 if let Some(pending_selection) = pending_selection {
9029 s.set_pending(pending_selection, SelectMode::Character);
9030 } else {
9031 s.clear_pending();
9032 }
9033 });
9034 self.selections_did_change(false, &old_cursor_position, cx);
9035 }
9036
9037 fn push_to_selection_history(&mut self) {
9038 self.selection_history.push(SelectionHistoryEntry {
9039 selections: self.selections.disjoint_anchors(),
9040 select_next_state: self.select_next_state.clone(),
9041 select_prev_state: self.select_prev_state.clone(),
9042 add_selections_state: self.add_selections_state.clone(),
9043 });
9044 }
9045
9046 pub fn transact(
9047 &mut self,
9048 cx: &mut ViewContext<Self>,
9049 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9050 ) -> Option<TransactionId> {
9051 self.start_transaction_at(Instant::now(), cx);
9052 update(self, cx);
9053 self.end_transaction_at(Instant::now(), cx)
9054 }
9055
9056 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9057 self.end_selection(cx);
9058 if let Some(tx_id) = self
9059 .buffer
9060 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9061 {
9062 self.selection_history
9063 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9064 cx.emit(EditorEvent::TransactionBegun {
9065 transaction_id: tx_id,
9066 })
9067 }
9068 }
9069
9070 fn end_transaction_at(
9071 &mut self,
9072 now: Instant,
9073 cx: &mut ViewContext<Self>,
9074 ) -> Option<TransactionId> {
9075 if let Some(tx_id) = self
9076 .buffer
9077 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9078 {
9079 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9080 *end_selections = Some(self.selections.disjoint_anchors());
9081 } else {
9082 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9083 }
9084
9085 cx.emit(EditorEvent::Edited);
9086 Some(tx_id)
9087 } else {
9088 None
9089 }
9090 }
9091
9092 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9093 let mut fold_ranges = Vec::new();
9094
9095 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9096
9097 let selections = self.selections.all_adjusted(cx);
9098 for selection in selections {
9099 let range = selection.range().sorted();
9100 let buffer_start_row = range.start.row;
9101
9102 for row in (0..=range.end.row).rev() {
9103 let fold_range = display_map.foldable_range(row);
9104
9105 if let Some(fold_range) = fold_range {
9106 if fold_range.end.row >= buffer_start_row {
9107 fold_ranges.push(fold_range);
9108 if row <= range.start.row {
9109 break;
9110 }
9111 }
9112 }
9113 }
9114 }
9115
9116 self.fold_ranges(fold_ranges, true, cx);
9117 }
9118
9119 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9120 let buffer_row = fold_at.buffer_row;
9121 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9122
9123 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9124 let autoscroll = self
9125 .selections
9126 .all::<Point>(cx)
9127 .iter()
9128 .any(|selection| fold_range.overlaps(&selection.range()));
9129
9130 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9131 }
9132 }
9133
9134 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9135 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9136 let buffer = &display_map.buffer_snapshot;
9137 let selections = self.selections.all::<Point>(cx);
9138 let ranges = selections
9139 .iter()
9140 .map(|s| {
9141 let range = s.display_range(&display_map).sorted();
9142 let mut start = range.start.to_point(&display_map);
9143 let mut end = range.end.to_point(&display_map);
9144 start.column = 0;
9145 end.column = buffer.line_len(end.row);
9146 start..end
9147 })
9148 .collect::<Vec<_>>();
9149
9150 self.unfold_ranges(ranges, true, true, cx);
9151 }
9152
9153 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9154 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9155
9156 let intersection_range = Point::new(unfold_at.buffer_row, 0)
9157 ..Point::new(
9158 unfold_at.buffer_row,
9159 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9160 );
9161
9162 let autoscroll = self
9163 .selections
9164 .all::<Point>(cx)
9165 .iter()
9166 .any(|selection| selection.range().overlaps(&intersection_range));
9167
9168 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9169 }
9170
9171 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9172 let selections = self.selections.all::<Point>(cx);
9173 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9174 let line_mode = self.selections.line_mode;
9175 let ranges = selections.into_iter().map(|s| {
9176 if line_mode {
9177 let start = Point::new(s.start.row, 0);
9178 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
9179 start..end
9180 } else {
9181 s.start..s.end
9182 }
9183 });
9184 self.fold_ranges(ranges, true, cx);
9185 }
9186
9187 pub fn fold_ranges<T: ToOffset + Clone>(
9188 &mut self,
9189 ranges: impl IntoIterator<Item = Range<T>>,
9190 auto_scroll: bool,
9191 cx: &mut ViewContext<Self>,
9192 ) {
9193 let mut fold_ranges = Vec::new();
9194 let mut buffers_affected = HashMap::default();
9195 let multi_buffer = self.buffer().read(cx);
9196 for range in ranges {
9197 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9198 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9199 };
9200 fold_ranges.push(range);
9201 }
9202
9203 let mut ranges = fold_ranges.into_iter().peekable();
9204 if ranges.peek().is_some() {
9205 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9206
9207 if auto_scroll {
9208 self.request_autoscroll(Autoscroll::fit(), cx);
9209 }
9210
9211 for buffer in buffers_affected.into_values() {
9212 self.sync_expanded_diff_hunks(buffer, cx);
9213 }
9214
9215 cx.notify();
9216
9217 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9218 // Clear diagnostics block when folding a range that contains it.
9219 let snapshot = self.snapshot(cx);
9220 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9221 drop(snapshot);
9222 self.active_diagnostics = Some(active_diagnostics);
9223 self.dismiss_diagnostics(cx);
9224 } else {
9225 self.active_diagnostics = Some(active_diagnostics);
9226 }
9227 }
9228
9229 self.scrollbar_marker_state.dirty = true;
9230 }
9231 }
9232
9233 pub fn unfold_ranges<T: ToOffset + Clone>(
9234 &mut self,
9235 ranges: impl IntoIterator<Item = Range<T>>,
9236 inclusive: bool,
9237 auto_scroll: bool,
9238 cx: &mut ViewContext<Self>,
9239 ) {
9240 let mut unfold_ranges = Vec::new();
9241 let mut buffers_affected = HashMap::default();
9242 let multi_buffer = self.buffer().read(cx);
9243 for range in ranges {
9244 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9245 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9246 };
9247 unfold_ranges.push(range);
9248 }
9249
9250 let mut ranges = unfold_ranges.into_iter().peekable();
9251 if ranges.peek().is_some() {
9252 self.display_map
9253 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9254 if auto_scroll {
9255 self.request_autoscroll(Autoscroll::fit(), cx);
9256 }
9257
9258 for buffer in buffers_affected.into_values() {
9259 self.sync_expanded_diff_hunks(buffer, cx);
9260 }
9261
9262 cx.notify();
9263 self.scrollbar_marker_state.dirty = true;
9264 }
9265 }
9266
9267 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9268 if hovered != self.gutter_hovered {
9269 self.gutter_hovered = hovered;
9270 cx.notify();
9271 }
9272 }
9273
9274 pub fn insert_blocks(
9275 &mut self,
9276 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9277 autoscroll: Option<Autoscroll>,
9278 cx: &mut ViewContext<Self>,
9279 ) -> Vec<BlockId> {
9280 let blocks = self
9281 .display_map
9282 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9283 if let Some(autoscroll) = autoscroll {
9284 self.request_autoscroll(autoscroll, cx);
9285 }
9286 blocks
9287 }
9288
9289 pub fn replace_blocks(
9290 &mut self,
9291 blocks: HashMap<BlockId, RenderBlock>,
9292 autoscroll: Option<Autoscroll>,
9293 cx: &mut ViewContext<Self>,
9294 ) {
9295 self.display_map
9296 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9297 if let Some(autoscroll) = autoscroll {
9298 self.request_autoscroll(autoscroll, cx);
9299 }
9300 }
9301
9302 pub fn remove_blocks(
9303 &mut self,
9304 block_ids: HashSet<BlockId>,
9305 autoscroll: Option<Autoscroll>,
9306 cx: &mut ViewContext<Self>,
9307 ) {
9308 self.display_map.update(cx, |display_map, cx| {
9309 display_map.remove_blocks(block_ids, cx)
9310 });
9311 if let Some(autoscroll) = autoscroll {
9312 self.request_autoscroll(autoscroll, cx);
9313 }
9314 }
9315
9316 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
9317 self.display_map
9318 .update(cx, |map, cx| map.snapshot(cx))
9319 .longest_row()
9320 }
9321
9322 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9323 self.display_map
9324 .update(cx, |map, cx| map.snapshot(cx))
9325 .max_point()
9326 }
9327
9328 pub fn text(&self, cx: &AppContext) -> String {
9329 self.buffer.read(cx).read(cx).text()
9330 }
9331
9332 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9333 let text = self.text(cx);
9334 let text = text.trim();
9335
9336 if text.is_empty() {
9337 return None;
9338 }
9339
9340 Some(text.to_string())
9341 }
9342
9343 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9344 self.transact(cx, |this, cx| {
9345 this.buffer
9346 .read(cx)
9347 .as_singleton()
9348 .expect("you can only call set_text on editors for singleton buffers")
9349 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9350 });
9351 }
9352
9353 pub fn display_text(&self, cx: &mut AppContext) -> String {
9354 self.display_map
9355 .update(cx, |map, cx| map.snapshot(cx))
9356 .text()
9357 }
9358
9359 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9360 let mut wrap_guides = smallvec::smallvec![];
9361
9362 if self.show_wrap_guides == Some(false) {
9363 return wrap_guides;
9364 }
9365
9366 let settings = self.buffer.read(cx).settings_at(0, cx);
9367 if settings.show_wrap_guides {
9368 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9369 wrap_guides.push((soft_wrap as usize, true));
9370 }
9371 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9372 }
9373
9374 wrap_guides
9375 }
9376
9377 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9378 let settings = self.buffer.read(cx).settings_at(0, cx);
9379 let mode = self
9380 .soft_wrap_mode_override
9381 .unwrap_or_else(|| settings.soft_wrap);
9382 match mode {
9383 language_settings::SoftWrap::None => SoftWrap::None,
9384 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9385 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9386 language_settings::SoftWrap::PreferredLineLength => {
9387 SoftWrap::Column(settings.preferred_line_length)
9388 }
9389 }
9390 }
9391
9392 pub fn set_soft_wrap_mode(
9393 &mut self,
9394 mode: language_settings::SoftWrap,
9395 cx: &mut ViewContext<Self>,
9396 ) {
9397 self.soft_wrap_mode_override = Some(mode);
9398 cx.notify();
9399 }
9400
9401 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9402 let rem_size = cx.rem_size();
9403 self.display_map.update(cx, |map, cx| {
9404 map.set_font(
9405 style.text.font(),
9406 style.text.font_size.to_pixels(rem_size),
9407 cx,
9408 )
9409 });
9410 self.style = Some(style);
9411 }
9412
9413 pub fn style(&self) -> Option<&EditorStyle> {
9414 self.style.as_ref()
9415 }
9416
9417 // Called by the element. This method is not designed to be called outside of the editor
9418 // element's layout code because it does not notify when rewrapping is computed synchronously.
9419 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9420 self.display_map
9421 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9422 }
9423
9424 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9425 if self.soft_wrap_mode_override.is_some() {
9426 self.soft_wrap_mode_override.take();
9427 } else {
9428 let soft_wrap = match self.soft_wrap_mode(cx) {
9429 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9430 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9431 language_settings::SoftWrap::PreferLine
9432 }
9433 };
9434 self.soft_wrap_mode_override = Some(soft_wrap);
9435 }
9436 cx.notify();
9437 }
9438
9439 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9440 let mut editor_settings = EditorSettings::get_global(cx).clone();
9441 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9442 EditorSettings::override_global(editor_settings, cx);
9443 }
9444
9445 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9446 self.show_gutter = show_gutter;
9447 cx.notify();
9448 }
9449
9450 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9451 self.show_wrap_guides = Some(show_gutter);
9452 cx.notify();
9453 }
9454
9455 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9456 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9457 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9458 cx.reveal_path(&file.abs_path(cx));
9459 }
9460 }
9461 }
9462
9463 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9464 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9465 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9466 if let Some(path) = file.abs_path(cx).to_str() {
9467 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9468 }
9469 }
9470 }
9471 }
9472
9473 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9474 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9475 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9476 if let Some(path) = file.path().to_str() {
9477 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9478 }
9479 }
9480 }
9481 }
9482
9483 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9484 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9485
9486 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9487 self.start_git_blame(true, cx);
9488 }
9489
9490 cx.notify();
9491 }
9492
9493 pub fn toggle_git_blame_inline(
9494 &mut self,
9495 _: &ToggleGitBlameInline,
9496 cx: &mut ViewContext<Self>,
9497 ) {
9498 self.toggle_git_blame_inline_internal(true, cx);
9499 cx.notify();
9500 }
9501
9502 pub fn git_blame_inline_enabled(&self) -> bool {
9503 self.git_blame_inline_enabled
9504 }
9505
9506 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9507 if let Some(project) = self.project.as_ref() {
9508 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9509 return;
9510 };
9511
9512 if buffer.read(cx).file().is_none() {
9513 return;
9514 }
9515
9516 let focused = self.focus_handle(cx).contains_focused(cx);
9517
9518 let project = project.clone();
9519 let blame =
9520 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9521 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9522 self.blame = Some(blame);
9523 }
9524 }
9525
9526 fn toggle_git_blame_inline_internal(
9527 &mut self,
9528 user_triggered: bool,
9529 cx: &mut ViewContext<Self>,
9530 ) {
9531 if self.git_blame_inline_enabled {
9532 self.git_blame_inline_enabled = false;
9533 self.show_git_blame_inline = false;
9534 self.show_git_blame_inline_delay_task.take();
9535 } else {
9536 self.git_blame_inline_enabled = true;
9537 self.start_git_blame_inline(user_triggered, cx);
9538 }
9539
9540 cx.notify();
9541 }
9542
9543 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9544 self.start_git_blame(user_triggered, cx);
9545
9546 if ProjectSettings::get_global(cx)
9547 .git
9548 .inline_blame_delay()
9549 .is_some()
9550 {
9551 self.start_inline_blame_timer(cx);
9552 } else {
9553 self.show_git_blame_inline = true
9554 }
9555 }
9556
9557 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9558 self.blame.as_ref()
9559 }
9560
9561 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9562 self.show_git_blame_gutter && self.has_blame_entries(cx)
9563 }
9564
9565 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9566 self.show_git_blame_inline
9567 && self.focus_handle.is_focused(cx)
9568 && !self.newest_selection_head_on_empty_line(cx)
9569 && self.has_blame_entries(cx)
9570 }
9571
9572 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9573 self.blame()
9574 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9575 }
9576
9577 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9578 let cursor_anchor = self.selections.newest_anchor().head();
9579
9580 let snapshot = self.buffer.read(cx).snapshot(cx);
9581 let buffer_row = cursor_anchor.to_point(&snapshot).row;
9582
9583 snapshot.line_len(buffer_row) == 0
9584 }
9585
9586 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9587 let (path, repo) = maybe!({
9588 let project_handle = self.project.as_ref()?.clone();
9589 let project = project_handle.read(cx);
9590 let buffer = self.buffer().read(cx).as_singleton()?;
9591 let path = buffer
9592 .read(cx)
9593 .file()?
9594 .as_local()?
9595 .path()
9596 .to_str()?
9597 .to_string();
9598 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9599 Some((path, repo))
9600 })
9601 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9602
9603 const REMOTE_NAME: &str = "origin";
9604 let origin_url = repo
9605 .lock()
9606 .remote_url(REMOTE_NAME)
9607 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9608 let sha = repo
9609 .lock()
9610 .head_sha()
9611 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9612 let selections = self.selections.all::<Point>(cx);
9613 let selection = selections.iter().peekable().next();
9614
9615 let (provider, remote) =
9616 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9617 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9618
9619 Ok(provider.build_permalink(
9620 remote,
9621 BuildPermalinkParams {
9622 sha: &sha,
9623 path: &path,
9624 selection: selection.map(|selection| {
9625 let range = selection.range();
9626 let start = range.start.row;
9627 let end = range.end.row;
9628 start..end
9629 }),
9630 },
9631 ))
9632 }
9633
9634 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9635 let permalink = self.get_permalink_to_line(cx);
9636
9637 match permalink {
9638 Ok(permalink) => {
9639 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9640 }
9641 Err(err) => {
9642 let message = format!("Failed to copy permalink: {err}");
9643
9644 Err::<(), anyhow::Error>(err).log_err();
9645
9646 if let Some(workspace) = self.workspace() {
9647 workspace.update(cx, |workspace, cx| {
9648 struct CopyPermalinkToLine;
9649
9650 workspace.show_toast(
9651 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9652 cx,
9653 )
9654 })
9655 }
9656 }
9657 }
9658 }
9659
9660 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9661 let permalink = self.get_permalink_to_line(cx);
9662
9663 match permalink {
9664 Ok(permalink) => {
9665 cx.open_url(permalink.as_ref());
9666 }
9667 Err(err) => {
9668 let message = format!("Failed to open permalink: {err}");
9669
9670 Err::<(), anyhow::Error>(err).log_err();
9671
9672 if let Some(workspace) = self.workspace() {
9673 workspace.update(cx, |workspace, cx| {
9674 struct OpenPermalinkToLine;
9675
9676 workspace.show_toast(
9677 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9678 cx,
9679 )
9680 })
9681 }
9682 }
9683 }
9684 }
9685
9686 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9687 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9688 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9689 pub fn highlight_rows<T: 'static>(
9690 &mut self,
9691 rows: Range<Anchor>,
9692 color: Option<Hsla>,
9693 cx: &mut ViewContext<Self>,
9694 ) {
9695 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9696 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9697 hash_map::Entry::Occupied(o) => {
9698 let row_highlights = o.into_mut();
9699 let existing_highlight_index =
9700 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9701 highlight_range
9702 .start
9703 .cmp(&rows.start, &multi_buffer_snapshot)
9704 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
9705 });
9706 match color {
9707 Some(color) => {
9708 let insert_index = match existing_highlight_index {
9709 Ok(i) => i,
9710 Err(i) => i,
9711 };
9712 row_highlights.insert(
9713 insert_index,
9714 (post_inc(&mut self.highlight_order), rows, color),
9715 );
9716 }
9717 None => {
9718 if let Ok(i) = existing_highlight_index {
9719 row_highlights.remove(i);
9720 }
9721 }
9722 }
9723 }
9724 hash_map::Entry::Vacant(v) => {
9725 if let Some(color) = color {
9726 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9727 }
9728 }
9729 }
9730 }
9731
9732 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9733 pub fn clear_row_highlights<T: 'static>(&mut self) {
9734 self.highlighted_rows.remove(&TypeId::of::<T>());
9735 }
9736
9737 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9738 pub fn highlighted_rows<T: 'static>(
9739 &self,
9740 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9741 Some(
9742 self.highlighted_rows
9743 .get(&TypeId::of::<T>())?
9744 .iter()
9745 .map(|(_, range, color)| (range, color)),
9746 )
9747 }
9748
9749 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9750 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9751 /// Allows to ignore certain kinds of highlights.
9752 pub fn highlighted_display_rows(
9753 &mut self,
9754 exclude_highlights: HashSet<TypeId>,
9755 cx: &mut WindowContext,
9756 ) -> BTreeMap<u32, Hsla> {
9757 let snapshot = self.snapshot(cx);
9758 let mut used_highlight_orders = HashMap::default();
9759 self.highlighted_rows
9760 .iter()
9761 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9762 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9763 .fold(
9764 BTreeMap::<u32, Hsla>::new(),
9765 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9766 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9767 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9768 for row in start_row..=end_row {
9769 let used_index =
9770 used_highlight_orders.entry(row).or_insert(*highlight_order);
9771 if highlight_order >= used_index {
9772 *used_index = *highlight_order;
9773 unique_rows.insert(row, *hsla);
9774 }
9775 }
9776 unique_rows
9777 },
9778 )
9779 }
9780
9781 pub fn set_search_within_ranges(
9782 &mut self,
9783 ranges: &[Range<Anchor>],
9784 cx: &mut ViewContext<Self>,
9785 ) {
9786 self.highlight_background::<SearchWithinRange>(
9787 ranges,
9788 |colors| colors.editor_document_highlight_read_background,
9789 cx,
9790 )
9791 }
9792
9793 pub fn highlight_background<T: 'static>(
9794 &mut self,
9795 ranges: &[Range<Anchor>],
9796 color_fetcher: fn(&ThemeColors) -> Hsla,
9797 cx: &mut ViewContext<Self>,
9798 ) {
9799 let snapshot = self.snapshot(cx);
9800 // this is to try and catch a panic sooner
9801 for range in ranges {
9802 snapshot
9803 .buffer_snapshot
9804 .summary_for_anchor::<usize>(&range.start);
9805 snapshot
9806 .buffer_snapshot
9807 .summary_for_anchor::<usize>(&range.end);
9808 }
9809
9810 self.background_highlights
9811 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9812 self.scrollbar_marker_state.dirty = true;
9813 cx.notify();
9814 }
9815
9816 pub fn clear_background_highlights<T: 'static>(
9817 &mut self,
9818 cx: &mut ViewContext<Self>,
9819 ) -> Option<BackgroundHighlight> {
9820 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9821 if !text_highlights.1.is_empty() {
9822 self.scrollbar_marker_state.dirty = true;
9823 cx.notify();
9824 }
9825 Some(text_highlights)
9826 }
9827
9828 #[cfg(feature = "test-support")]
9829 pub fn all_text_background_highlights(
9830 &mut self,
9831 cx: &mut ViewContext<Self>,
9832 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9833 let snapshot = self.snapshot(cx);
9834 let buffer = &snapshot.buffer_snapshot;
9835 let start = buffer.anchor_before(0);
9836 let end = buffer.anchor_after(buffer.len());
9837 let theme = cx.theme().colors();
9838 self.background_highlights_in_range(start..end, &snapshot, theme)
9839 }
9840
9841 fn document_highlights_for_position<'a>(
9842 &'a self,
9843 position: Anchor,
9844 buffer: &'a MultiBufferSnapshot,
9845 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9846 let read_highlights = self
9847 .background_highlights
9848 .get(&TypeId::of::<DocumentHighlightRead>())
9849 .map(|h| &h.1);
9850 let write_highlights = self
9851 .background_highlights
9852 .get(&TypeId::of::<DocumentHighlightWrite>())
9853 .map(|h| &h.1);
9854 let left_position = position.bias_left(buffer);
9855 let right_position = position.bias_right(buffer);
9856 read_highlights
9857 .into_iter()
9858 .chain(write_highlights)
9859 .flat_map(move |ranges| {
9860 let start_ix = match ranges.binary_search_by(|probe| {
9861 let cmp = probe.end.cmp(&left_position, buffer);
9862 if cmp.is_ge() {
9863 Ordering::Greater
9864 } else {
9865 Ordering::Less
9866 }
9867 }) {
9868 Ok(i) | Err(i) => i,
9869 };
9870
9871 ranges[start_ix..]
9872 .iter()
9873 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9874 })
9875 }
9876
9877 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9878 self.background_highlights
9879 .get(&TypeId::of::<T>())
9880 .map_or(false, |(_, highlights)| !highlights.is_empty())
9881 }
9882
9883 pub fn background_highlights_in_range(
9884 &self,
9885 search_range: Range<Anchor>,
9886 display_snapshot: &DisplaySnapshot,
9887 theme: &ThemeColors,
9888 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9889 let mut results = Vec::new();
9890 for (color_fetcher, ranges) in self.background_highlights.values() {
9891 let color = color_fetcher(theme);
9892 let start_ix = match ranges.binary_search_by(|probe| {
9893 let cmp = probe
9894 .end
9895 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9896 if cmp.is_gt() {
9897 Ordering::Greater
9898 } else {
9899 Ordering::Less
9900 }
9901 }) {
9902 Ok(i) | Err(i) => i,
9903 };
9904 for range in &ranges[start_ix..] {
9905 if range
9906 .start
9907 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9908 .is_ge()
9909 {
9910 break;
9911 }
9912
9913 let start = range.start.to_display_point(&display_snapshot);
9914 let end = range.end.to_display_point(&display_snapshot);
9915 results.push((start..end, color))
9916 }
9917 }
9918 results
9919 }
9920
9921 pub fn background_highlight_row_ranges<T: 'static>(
9922 &self,
9923 search_range: Range<Anchor>,
9924 display_snapshot: &DisplaySnapshot,
9925 count: usize,
9926 ) -> Vec<RangeInclusive<DisplayPoint>> {
9927 let mut results = Vec::new();
9928 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9929 return vec![];
9930 };
9931
9932 let start_ix = match ranges.binary_search_by(|probe| {
9933 let cmp = probe
9934 .end
9935 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9936 if cmp.is_gt() {
9937 Ordering::Greater
9938 } else {
9939 Ordering::Less
9940 }
9941 }) {
9942 Ok(i) | Err(i) => i,
9943 };
9944 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9945 if let (Some(start_display), Some(end_display)) = (start, end) {
9946 results.push(
9947 start_display.to_display_point(display_snapshot)
9948 ..=end_display.to_display_point(display_snapshot),
9949 );
9950 }
9951 };
9952 let mut start_row: Option<Point> = None;
9953 let mut end_row: Option<Point> = None;
9954 if ranges.len() > count {
9955 return Vec::new();
9956 }
9957 for range in &ranges[start_ix..] {
9958 if range
9959 .start
9960 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9961 .is_ge()
9962 {
9963 break;
9964 }
9965 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9966 if let Some(current_row) = &end_row {
9967 if end.row == current_row.row {
9968 continue;
9969 }
9970 }
9971 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9972 if start_row.is_none() {
9973 assert_eq!(end_row, None);
9974 start_row = Some(start);
9975 end_row = Some(end);
9976 continue;
9977 }
9978 if let Some(current_end) = end_row.as_mut() {
9979 if start.row > current_end.row + 1 {
9980 push_region(start_row, end_row);
9981 start_row = Some(start);
9982 end_row = Some(end);
9983 } else {
9984 // Merge two hunks.
9985 *current_end = end;
9986 }
9987 } else {
9988 unreachable!();
9989 }
9990 }
9991 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9992 push_region(start_row, end_row);
9993 results
9994 }
9995
9996 /// Get the text ranges corresponding to the redaction query
9997 pub fn redacted_ranges(
9998 &self,
9999 search_range: Range<Anchor>,
10000 display_snapshot: &DisplaySnapshot,
10001 cx: &WindowContext,
10002 ) -> Vec<Range<DisplayPoint>> {
10003 display_snapshot
10004 .buffer_snapshot
10005 .redacted_ranges(search_range, |file| {
10006 if let Some(file) = file {
10007 file.is_private()
10008 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10009 } else {
10010 false
10011 }
10012 })
10013 .map(|range| {
10014 range.start.to_display_point(display_snapshot)
10015 ..range.end.to_display_point(display_snapshot)
10016 })
10017 .collect()
10018 }
10019
10020 pub fn highlight_text<T: 'static>(
10021 &mut self,
10022 ranges: Vec<Range<Anchor>>,
10023 style: HighlightStyle,
10024 cx: &mut ViewContext<Self>,
10025 ) {
10026 self.display_map.update(cx, |map, _| {
10027 map.highlight_text(TypeId::of::<T>(), ranges, style)
10028 });
10029 cx.notify();
10030 }
10031
10032 pub(crate) fn highlight_inlays<T: 'static>(
10033 &mut self,
10034 highlights: Vec<InlayHighlight>,
10035 style: HighlightStyle,
10036 cx: &mut ViewContext<Self>,
10037 ) {
10038 self.display_map.update(cx, |map, _| {
10039 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10040 });
10041 cx.notify();
10042 }
10043
10044 pub fn text_highlights<'a, T: 'static>(
10045 &'a self,
10046 cx: &'a AppContext,
10047 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10048 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10049 }
10050
10051 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10052 let cleared = self
10053 .display_map
10054 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10055 if cleared {
10056 cx.notify();
10057 }
10058 }
10059
10060 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10061 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10062 && self.focus_handle.is_focused(cx)
10063 }
10064
10065 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10066 cx.notify();
10067 }
10068
10069 fn on_buffer_event(
10070 &mut self,
10071 multibuffer: Model<MultiBuffer>,
10072 event: &multi_buffer::Event,
10073 cx: &mut ViewContext<Self>,
10074 ) {
10075 match event {
10076 multi_buffer::Event::Edited {
10077 singleton_buffer_edited,
10078 } => {
10079 self.scrollbar_marker_state.dirty = true;
10080 self.refresh_active_diagnostics(cx);
10081 self.refresh_code_actions(cx);
10082 if self.has_active_inline_completion(cx) {
10083 self.update_visible_inline_completion(cx);
10084 }
10085 cx.emit(EditorEvent::BufferEdited);
10086 cx.emit(SearchEvent::MatchesInvalidated);
10087
10088 if *singleton_buffer_edited {
10089 if let Some(project) = &self.project {
10090 let project = project.read(cx);
10091 let languages_affected = multibuffer
10092 .read(cx)
10093 .all_buffers()
10094 .into_iter()
10095 .filter_map(|buffer| {
10096 let buffer = buffer.read(cx);
10097 let language = buffer.language()?;
10098 if project.is_local()
10099 && project.language_servers_for_buffer(buffer, cx).count() == 0
10100 {
10101 None
10102 } else {
10103 Some(language)
10104 }
10105 })
10106 .cloned()
10107 .collect::<HashSet<_>>();
10108 if !languages_affected.is_empty() {
10109 self.refresh_inlay_hints(
10110 InlayHintRefreshReason::BufferEdited(languages_affected),
10111 cx,
10112 );
10113 }
10114 }
10115 }
10116
10117 let Some(project) = &self.project else { return };
10118 let telemetry = project.read(cx).client().telemetry().clone();
10119 telemetry.log_edit_event("editor");
10120 }
10121 multi_buffer::Event::ExcerptsAdded {
10122 buffer,
10123 predecessor,
10124 excerpts,
10125 } => {
10126 self.tasks_update_task = Some(self.refresh_runnables(cx));
10127 cx.emit(EditorEvent::ExcerptsAdded {
10128 buffer: buffer.clone(),
10129 predecessor: *predecessor,
10130 excerpts: excerpts.clone(),
10131 });
10132 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10133 }
10134 multi_buffer::Event::ExcerptsRemoved { ids } => {
10135 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10136 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10137 }
10138 multi_buffer::Event::Reparsed => {
10139 self.tasks_update_task = Some(self.refresh_runnables(cx));
10140
10141 cx.emit(EditorEvent::Reparsed);
10142 }
10143 multi_buffer::Event::LanguageChanged => {
10144 cx.emit(EditorEvent::Reparsed);
10145 cx.notify();
10146 }
10147 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10148 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10149 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10150 cx.emit(EditorEvent::TitleChanged)
10151 }
10152 multi_buffer::Event::DiffBaseChanged => {
10153 self.scrollbar_marker_state.dirty = true;
10154 cx.emit(EditorEvent::DiffBaseChanged);
10155 cx.notify();
10156 }
10157 multi_buffer::Event::DiffUpdated { buffer } => {
10158 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10159 cx.notify();
10160 }
10161 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10162 multi_buffer::Event::DiagnosticsUpdated => {
10163 self.refresh_active_diagnostics(cx);
10164 self.scrollbar_marker_state.dirty = true;
10165 cx.notify();
10166 }
10167 _ => {}
10168 };
10169 }
10170
10171 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10172 cx.notify();
10173 }
10174
10175 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10176 self.refresh_inline_completion(true, cx);
10177 self.refresh_inlay_hints(
10178 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10179 self.selections.newest_anchor().head(),
10180 &self.buffer.read(cx).snapshot(cx),
10181 cx,
10182 )),
10183 cx,
10184 );
10185 let editor_settings = EditorSettings::get_global(cx);
10186 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10187 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10188
10189 if self.mode == EditorMode::Full {
10190 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10191 if self.git_blame_inline_enabled != inline_blame_enabled {
10192 self.toggle_git_blame_inline_internal(false, cx);
10193 }
10194 }
10195
10196 cx.notify();
10197 }
10198
10199 pub fn set_searchable(&mut self, searchable: bool) {
10200 self.searchable = searchable;
10201 }
10202
10203 pub fn searchable(&self) -> bool {
10204 self.searchable
10205 }
10206
10207 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10208 self.open_excerpts_common(true, cx)
10209 }
10210
10211 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10212 self.open_excerpts_common(false, cx)
10213 }
10214
10215 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10216 let buffer = self.buffer.read(cx);
10217 if buffer.is_singleton() {
10218 cx.propagate();
10219 return;
10220 }
10221
10222 let Some(workspace) = self.workspace() else {
10223 cx.propagate();
10224 return;
10225 };
10226
10227 let mut new_selections_by_buffer = HashMap::default();
10228 for selection in self.selections.all::<usize>(cx) {
10229 for (buffer, mut range, _) in
10230 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10231 {
10232 if selection.reversed {
10233 mem::swap(&mut range.start, &mut range.end);
10234 }
10235 new_selections_by_buffer
10236 .entry(buffer)
10237 .or_insert(Vec::new())
10238 .push(range)
10239 }
10240 }
10241
10242 // We defer the pane interaction because we ourselves are a workspace item
10243 // and activating a new item causes the pane to call a method on us reentrantly,
10244 // which panics if we're on the stack.
10245 cx.window_context().defer(move |cx| {
10246 workspace.update(cx, |workspace, cx| {
10247 let pane = if split {
10248 workspace.adjacent_pane(cx)
10249 } else {
10250 workspace.active_pane().clone()
10251 };
10252
10253 for (buffer, ranges) in new_selections_by_buffer {
10254 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10255 editor.update(cx, |editor, cx| {
10256 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10257 s.select_ranges(ranges);
10258 });
10259 });
10260 }
10261 })
10262 });
10263 }
10264
10265 fn jump(
10266 &mut self,
10267 path: ProjectPath,
10268 position: Point,
10269 anchor: language::Anchor,
10270 offset_from_top: u32,
10271 cx: &mut ViewContext<Self>,
10272 ) {
10273 let workspace = self.workspace();
10274 cx.spawn(|_, mut cx| async move {
10275 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10276 let editor = workspace.update(&mut cx, |workspace, cx| {
10277 // Reset the preview item id before opening the new item
10278 workspace.active_pane().update(cx, |pane, cx| {
10279 pane.set_preview_item_id(None, cx);
10280 });
10281 workspace.open_path_preview(path, None, true, true, cx)
10282 })?;
10283 let editor = editor
10284 .await?
10285 .downcast::<Editor>()
10286 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10287 .downgrade();
10288 editor.update(&mut cx, |editor, cx| {
10289 let buffer = editor
10290 .buffer()
10291 .read(cx)
10292 .as_singleton()
10293 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10294 let buffer = buffer.read(cx);
10295 let cursor = if buffer.can_resolve(&anchor) {
10296 language::ToPoint::to_point(&anchor, buffer)
10297 } else {
10298 buffer.clip_point(position, Bias::Left)
10299 };
10300
10301 let nav_history = editor.nav_history.take();
10302 editor.change_selections(
10303 Some(Autoscroll::top_relative(offset_from_top as usize)),
10304 cx,
10305 |s| {
10306 s.select_ranges([cursor..cursor]);
10307 },
10308 );
10309 editor.nav_history = nav_history;
10310
10311 anyhow::Ok(())
10312 })??;
10313
10314 anyhow::Ok(())
10315 })
10316 .detach_and_log_err(cx);
10317 }
10318
10319 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10320 let snapshot = self.buffer.read(cx).read(cx);
10321 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10322 Some(
10323 ranges
10324 .iter()
10325 .map(move |range| {
10326 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10327 })
10328 .collect(),
10329 )
10330 }
10331
10332 fn selection_replacement_ranges(
10333 &self,
10334 range: Range<OffsetUtf16>,
10335 cx: &AppContext,
10336 ) -> Vec<Range<OffsetUtf16>> {
10337 let selections = self.selections.all::<OffsetUtf16>(cx);
10338 let newest_selection = selections
10339 .iter()
10340 .max_by_key(|selection| selection.id)
10341 .unwrap();
10342 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10343 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10344 let snapshot = self.buffer.read(cx).read(cx);
10345 selections
10346 .into_iter()
10347 .map(|mut selection| {
10348 selection.start.0 =
10349 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10350 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10351 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10352 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10353 })
10354 .collect()
10355 }
10356
10357 fn report_editor_event(
10358 &self,
10359 operation: &'static str,
10360 file_extension: Option<String>,
10361 cx: &AppContext,
10362 ) {
10363 if cfg!(any(test, feature = "test-support")) {
10364 return;
10365 }
10366
10367 let Some(project) = &self.project else { return };
10368
10369 // If None, we are in a file without an extension
10370 let file = self
10371 .buffer
10372 .read(cx)
10373 .as_singleton()
10374 .and_then(|b| b.read(cx).file());
10375 let file_extension = file_extension.or(file
10376 .as_ref()
10377 .and_then(|file| Path::new(file.file_name(cx)).extension())
10378 .and_then(|e| e.to_str())
10379 .map(|a| a.to_string()));
10380
10381 let vim_mode = cx
10382 .global::<SettingsStore>()
10383 .raw_user_settings()
10384 .get("vim_mode")
10385 == Some(&serde_json::Value::Bool(true));
10386
10387 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10388 == language::language_settings::InlineCompletionProvider::Copilot;
10389 let copilot_enabled_for_language = self
10390 .buffer
10391 .read(cx)
10392 .settings_at(0, cx)
10393 .show_inline_completions;
10394
10395 let telemetry = project.read(cx).client().telemetry().clone();
10396 telemetry.report_editor_event(
10397 file_extension,
10398 vim_mode,
10399 operation,
10400 copilot_enabled,
10401 copilot_enabled_for_language,
10402 )
10403 }
10404
10405 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10406 /// with each line being an array of {text, highlight} objects.
10407 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10408 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10409 return;
10410 };
10411
10412 #[derive(Serialize)]
10413 struct Chunk<'a> {
10414 text: String,
10415 highlight: Option<&'a str>,
10416 }
10417
10418 let snapshot = buffer.read(cx).snapshot();
10419 let range = self
10420 .selected_text_range(cx)
10421 .and_then(|selected_range| {
10422 if selected_range.is_empty() {
10423 None
10424 } else {
10425 Some(selected_range)
10426 }
10427 })
10428 .unwrap_or_else(|| 0..snapshot.len());
10429
10430 let chunks = snapshot.chunks(range, true);
10431 let mut lines = Vec::new();
10432 let mut line: VecDeque<Chunk> = VecDeque::new();
10433
10434 let Some(style) = self.style.as_ref() else {
10435 return;
10436 };
10437
10438 for chunk in chunks {
10439 let highlight = chunk
10440 .syntax_highlight_id
10441 .and_then(|id| id.name(&style.syntax));
10442 let mut chunk_lines = chunk.text.split('\n').peekable();
10443 while let Some(text) = chunk_lines.next() {
10444 let mut merged_with_last_token = false;
10445 if let Some(last_token) = line.back_mut() {
10446 if last_token.highlight == highlight {
10447 last_token.text.push_str(text);
10448 merged_with_last_token = true;
10449 }
10450 }
10451
10452 if !merged_with_last_token {
10453 line.push_back(Chunk {
10454 text: text.into(),
10455 highlight,
10456 });
10457 }
10458
10459 if chunk_lines.peek().is_some() {
10460 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10461 line.pop_front();
10462 }
10463 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10464 line.pop_back();
10465 }
10466
10467 lines.push(mem::take(&mut line));
10468 }
10469 }
10470 }
10471
10472 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10473 return;
10474 };
10475 cx.write_to_clipboard(ClipboardItem::new(lines));
10476 }
10477
10478 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10479 &self.inlay_hint_cache
10480 }
10481
10482 pub fn replay_insert_event(
10483 &mut self,
10484 text: &str,
10485 relative_utf16_range: Option<Range<isize>>,
10486 cx: &mut ViewContext<Self>,
10487 ) {
10488 if !self.input_enabled {
10489 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10490 return;
10491 }
10492 if let Some(relative_utf16_range) = relative_utf16_range {
10493 let selections = self.selections.all::<OffsetUtf16>(cx);
10494 self.change_selections(None, cx, |s| {
10495 let new_ranges = selections.into_iter().map(|range| {
10496 let start = OffsetUtf16(
10497 range
10498 .head()
10499 .0
10500 .saturating_add_signed(relative_utf16_range.start),
10501 );
10502 let end = OffsetUtf16(
10503 range
10504 .head()
10505 .0
10506 .saturating_add_signed(relative_utf16_range.end),
10507 );
10508 start..end
10509 });
10510 s.select_ranges(new_ranges);
10511 });
10512 }
10513
10514 self.handle_input(text, cx);
10515 }
10516
10517 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10518 let Some(project) = self.project.as_ref() else {
10519 return false;
10520 };
10521 let project = project.read(cx);
10522
10523 let mut supports = false;
10524 self.buffer().read(cx).for_each_buffer(|buffer| {
10525 if !supports {
10526 supports = project
10527 .language_servers_for_buffer(buffer.read(cx), cx)
10528 .any(
10529 |(_, server)| match server.capabilities().inlay_hint_provider {
10530 Some(lsp::OneOf::Left(enabled)) => enabled,
10531 Some(lsp::OneOf::Right(_)) => true,
10532 None => false,
10533 },
10534 )
10535 }
10536 });
10537 supports
10538 }
10539
10540 pub fn focus(&self, cx: &mut WindowContext) {
10541 cx.focus(&self.focus_handle)
10542 }
10543
10544 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10545 self.focus_handle.is_focused(cx)
10546 }
10547
10548 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10549 cx.emit(EditorEvent::Focused);
10550
10551 if let Some(rename) = self.pending_rename.as_ref() {
10552 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10553 cx.focus(&rename_editor_focus_handle);
10554 } else {
10555 if let Some(blame) = self.blame.as_ref() {
10556 blame.update(cx, GitBlame::focus)
10557 }
10558
10559 self.blink_manager.update(cx, BlinkManager::enable);
10560 self.show_cursor_names(cx);
10561 self.buffer.update(cx, |buffer, cx| {
10562 buffer.finalize_last_transaction(cx);
10563 if self.leader_peer_id.is_none() {
10564 buffer.set_active_selections(
10565 &self.selections.disjoint_anchors(),
10566 self.selections.line_mode,
10567 self.cursor_shape,
10568 cx,
10569 );
10570 }
10571 });
10572 }
10573 }
10574
10575 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10576 self.blink_manager.update(cx, BlinkManager::disable);
10577 self.buffer
10578 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10579
10580 if let Some(blame) = self.blame.as_ref() {
10581 blame.update(cx, GitBlame::blur)
10582 }
10583 self.hide_context_menu(cx);
10584 hide_hover(self, cx);
10585 cx.emit(EditorEvent::Blurred);
10586 cx.notify();
10587 }
10588
10589 pub fn register_action<A: Action>(
10590 &mut self,
10591 listener: impl Fn(&A, &mut WindowContext) + 'static,
10592 ) -> &mut Self {
10593 let listener = Arc::new(listener);
10594
10595 self.editor_actions.push(Box::new(move |cx| {
10596 let _view = cx.view().clone();
10597 let cx = cx.window_context();
10598 let listener = listener.clone();
10599 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10600 let action = action.downcast_ref().unwrap();
10601 if phase == DispatchPhase::Bubble {
10602 listener(action, cx)
10603 }
10604 })
10605 }));
10606 self
10607 }
10608}
10609
10610fn hunks_for_selections(
10611 multi_buffer_snapshot: &MultiBufferSnapshot,
10612 selections: &[Selection<Anchor>],
10613) -> Vec<DiffHunk<u32>> {
10614 let mut hunks = Vec::with_capacity(selections.len());
10615 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10616 HashMap::default();
10617 let display_rows_for_selections = selections.iter().map(|selection| {
10618 let head = selection.head();
10619 let tail = selection.tail();
10620 let start = tail.to_point(&multi_buffer_snapshot).row;
10621 let end = head.to_point(&multi_buffer_snapshot).row;
10622 if start > end {
10623 end..start
10624 } else {
10625 start..end
10626 }
10627 });
10628
10629 for selected_multi_buffer_rows in display_rows_for_selections {
10630 let query_rows = selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
10631 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10632 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10633 // when the caret is just above or just below the deleted hunk.
10634 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
10635 let related_to_selection = if allow_adjacent {
10636 hunk.associated_range.overlaps(&query_rows)
10637 || hunk.associated_range.start == query_rows.end
10638 || hunk.associated_range.end == query_rows.start
10639 } else {
10640 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10641 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10642 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10643 || selected_multi_buffer_rows.end == hunk.associated_range.start
10644 };
10645 if related_to_selection {
10646 if !processed_buffer_rows
10647 .entry(hunk.buffer_id)
10648 .or_default()
10649 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10650 {
10651 continue;
10652 }
10653 hunks.push(hunk);
10654 }
10655 }
10656 }
10657
10658 hunks
10659}
10660
10661pub trait CollaborationHub {
10662 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10663 fn user_participant_indices<'a>(
10664 &self,
10665 cx: &'a AppContext,
10666 ) -> &'a HashMap<u64, ParticipantIndex>;
10667 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10668}
10669
10670impl CollaborationHub for Model<Project> {
10671 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10672 self.read(cx).collaborators()
10673 }
10674
10675 fn user_participant_indices<'a>(
10676 &self,
10677 cx: &'a AppContext,
10678 ) -> &'a HashMap<u64, ParticipantIndex> {
10679 self.read(cx).user_store().read(cx).participant_indices()
10680 }
10681
10682 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10683 let this = self.read(cx);
10684 let user_ids = this.collaborators().values().map(|c| c.user_id);
10685 this.user_store().read_with(cx, |user_store, cx| {
10686 user_store.participant_names(user_ids, cx)
10687 })
10688 }
10689}
10690
10691pub trait CompletionProvider {
10692 fn completions(
10693 &self,
10694 buffer: &Model<Buffer>,
10695 buffer_position: text::Anchor,
10696 cx: &mut ViewContext<Editor>,
10697 ) -> Task<Result<Vec<Completion>>>;
10698
10699 fn resolve_completions(
10700 &self,
10701 buffer: Model<Buffer>,
10702 completion_indices: Vec<usize>,
10703 completions: Arc<RwLock<Box<[Completion]>>>,
10704 cx: &mut ViewContext<Editor>,
10705 ) -> Task<Result<bool>>;
10706
10707 fn apply_additional_edits_for_completion(
10708 &self,
10709 buffer: Model<Buffer>,
10710 completion: Completion,
10711 push_to_history: bool,
10712 cx: &mut ViewContext<Editor>,
10713 ) -> Task<Result<Option<language::Transaction>>>;
10714}
10715
10716impl CompletionProvider for Model<Project> {
10717 fn completions(
10718 &self,
10719 buffer: &Model<Buffer>,
10720 buffer_position: text::Anchor,
10721 cx: &mut ViewContext<Editor>,
10722 ) -> Task<Result<Vec<Completion>>> {
10723 self.update(cx, |project, cx| {
10724 project.completions(&buffer, buffer_position, cx)
10725 })
10726 }
10727
10728 fn resolve_completions(
10729 &self,
10730 buffer: Model<Buffer>,
10731 completion_indices: Vec<usize>,
10732 completions: Arc<RwLock<Box<[Completion]>>>,
10733 cx: &mut ViewContext<Editor>,
10734 ) -> Task<Result<bool>> {
10735 self.update(cx, |project, cx| {
10736 project.resolve_completions(buffer, completion_indices, completions, cx)
10737 })
10738 }
10739
10740 fn apply_additional_edits_for_completion(
10741 &self,
10742 buffer: Model<Buffer>,
10743 completion: Completion,
10744 push_to_history: bool,
10745 cx: &mut ViewContext<Editor>,
10746 ) -> Task<Result<Option<language::Transaction>>> {
10747 self.update(cx, |project, cx| {
10748 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10749 })
10750 }
10751}
10752
10753fn inlay_hint_settings(
10754 location: Anchor,
10755 snapshot: &MultiBufferSnapshot,
10756 cx: &mut ViewContext<'_, Editor>,
10757) -> InlayHintSettings {
10758 let file = snapshot.file_at(location);
10759 let language = snapshot.language_at(location);
10760 let settings = all_language_settings(file, cx);
10761 settings
10762 .language(language.map(|l| l.name()).as_deref())
10763 .inlay_hints
10764}
10765
10766fn consume_contiguous_rows(
10767 contiguous_row_selections: &mut Vec<Selection<Point>>,
10768 selection: &Selection<Point>,
10769 display_map: &DisplaySnapshot,
10770 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10771) -> (u32, u32) {
10772 contiguous_row_selections.push(selection.clone());
10773 let start_row = selection.start.row;
10774 let mut end_row = ending_row(selection, display_map);
10775
10776 while let Some(next_selection) = selections.peek() {
10777 if next_selection.start.row <= end_row {
10778 end_row = ending_row(next_selection, display_map);
10779 contiguous_row_selections.push(selections.next().unwrap().clone());
10780 } else {
10781 break;
10782 }
10783 }
10784 (start_row, end_row)
10785}
10786
10787fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10788 if next_selection.end.column > 0 || next_selection.is_empty() {
10789 display_map.next_line_boundary(next_selection.end).0.row + 1
10790 } else {
10791 next_selection.end.row
10792 }
10793}
10794
10795impl EditorSnapshot {
10796 pub fn remote_selections_in_range<'a>(
10797 &'a self,
10798 range: &'a Range<Anchor>,
10799 collaboration_hub: &dyn CollaborationHub,
10800 cx: &'a AppContext,
10801 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10802 let participant_names = collaboration_hub.user_names(cx);
10803 let participant_indices = collaboration_hub.user_participant_indices(cx);
10804 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10805 let collaborators_by_replica_id = collaborators_by_peer_id
10806 .iter()
10807 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10808 .collect::<HashMap<_, _>>();
10809 self.buffer_snapshot
10810 .remote_selections_in_range(range)
10811 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10812 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10813 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10814 let user_name = participant_names.get(&collaborator.user_id).cloned();
10815 Some(RemoteSelection {
10816 replica_id,
10817 selection,
10818 cursor_shape,
10819 line_mode,
10820 participant_index,
10821 peer_id: collaborator.peer_id,
10822 user_name,
10823 })
10824 })
10825 }
10826
10827 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10828 self.display_snapshot.buffer_snapshot.language_at(position)
10829 }
10830
10831 pub fn is_focused(&self) -> bool {
10832 self.is_focused
10833 }
10834
10835 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10836 self.placeholder_text.as_ref()
10837 }
10838
10839 pub fn scroll_position(&self) -> gpui::Point<f32> {
10840 self.scroll_anchor.scroll_position(&self.display_snapshot)
10841 }
10842
10843 pub fn gutter_dimensions(
10844 &self,
10845 font_id: FontId,
10846 font_size: Pixels,
10847 em_width: Pixels,
10848 max_line_number_width: Pixels,
10849 cx: &AppContext,
10850 ) -> GutterDimensions {
10851 if !self.show_gutter {
10852 return GutterDimensions::default();
10853 }
10854 let descent = cx.text_system().descent(font_id, font_size);
10855
10856 let show_git_gutter = matches!(
10857 ProjectSettings::get_global(cx).git.git_gutter,
10858 Some(GitGutterSetting::TrackedFiles)
10859 );
10860 let gutter_settings = EditorSettings::get_global(cx).gutter;
10861 let gutter_lines_enabled = gutter_settings.line_numbers;
10862 let line_gutter_width = if gutter_lines_enabled {
10863 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10864 let min_width_for_number_on_gutter = em_width * 4.0;
10865 max_line_number_width.max(min_width_for_number_on_gutter)
10866 } else {
10867 0.0.into()
10868 };
10869
10870 let git_blame_entries_width = self
10871 .render_git_blame_gutter
10872 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10873
10874 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10875 left_padding += if gutter_settings.code_actions {
10876 em_width * 3.0
10877 } else if show_git_gutter && gutter_lines_enabled {
10878 em_width * 2.0
10879 } else if show_git_gutter || gutter_lines_enabled {
10880 em_width
10881 } else {
10882 px(0.)
10883 };
10884
10885 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10886 em_width * 4.0
10887 } else if gutter_settings.folds {
10888 em_width * 3.0
10889 } else if gutter_lines_enabled {
10890 em_width
10891 } else {
10892 px(0.)
10893 };
10894
10895 GutterDimensions {
10896 left_padding,
10897 right_padding,
10898 width: line_gutter_width + left_padding + right_padding,
10899 margin: -descent,
10900 git_blame_entries_width,
10901 }
10902 }
10903}
10904
10905impl Deref for EditorSnapshot {
10906 type Target = DisplaySnapshot;
10907
10908 fn deref(&self) -> &Self::Target {
10909 &self.display_snapshot
10910 }
10911}
10912
10913#[derive(Clone, Debug, PartialEq, Eq)]
10914pub enum EditorEvent {
10915 InputIgnored {
10916 text: Arc<str>,
10917 },
10918 InputHandled {
10919 utf16_range_to_replace: Option<Range<isize>>,
10920 text: Arc<str>,
10921 },
10922 ExcerptsAdded {
10923 buffer: Model<Buffer>,
10924 predecessor: ExcerptId,
10925 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10926 },
10927 ExcerptsRemoved {
10928 ids: Vec<ExcerptId>,
10929 },
10930 BufferEdited,
10931 Edited,
10932 Reparsed,
10933 Focused,
10934 Blurred,
10935 DirtyChanged,
10936 Saved,
10937 TitleChanged,
10938 DiffBaseChanged,
10939 SelectionsChanged {
10940 local: bool,
10941 },
10942 ScrollPositionChanged {
10943 local: bool,
10944 autoscroll: bool,
10945 },
10946 Closed,
10947 TransactionUndone {
10948 transaction_id: clock::Lamport,
10949 },
10950 TransactionBegun {
10951 transaction_id: clock::Lamport,
10952 },
10953}
10954
10955impl EventEmitter<EditorEvent> for Editor {}
10956
10957impl FocusableView for Editor {
10958 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10959 self.focus_handle.clone()
10960 }
10961}
10962
10963impl Render for Editor {
10964 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10965 let settings = ThemeSettings::get_global(cx);
10966
10967 let text_style = match self.mode {
10968 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10969 color: cx.theme().colors().editor_foreground,
10970 font_family: settings.ui_font.family.clone(),
10971 font_features: settings.ui_font.features.clone(),
10972 font_size: rems(0.875).into(),
10973 font_weight: FontWeight::NORMAL,
10974 font_style: FontStyle::Normal,
10975 line_height: relative(settings.buffer_line_height.value()),
10976 background_color: None,
10977 underline: None,
10978 strikethrough: None,
10979 white_space: WhiteSpace::Normal,
10980 },
10981 EditorMode::Full => TextStyle {
10982 color: cx.theme().colors().editor_foreground,
10983 font_family: settings.buffer_font.family.clone(),
10984 font_features: settings.buffer_font.features.clone(),
10985 font_size: settings.buffer_font_size(cx).into(),
10986 font_weight: FontWeight::NORMAL,
10987 font_style: FontStyle::Normal,
10988 line_height: relative(settings.buffer_line_height.value()),
10989 background_color: None,
10990 underline: None,
10991 strikethrough: None,
10992 white_space: WhiteSpace::Normal,
10993 },
10994 };
10995
10996 let background = match self.mode {
10997 EditorMode::SingleLine => cx.theme().system().transparent,
10998 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10999 EditorMode::Full => cx.theme().colors().editor_background,
11000 };
11001
11002 EditorElement::new(
11003 cx.view(),
11004 EditorStyle {
11005 background,
11006 local_player: cx.theme().players().local(),
11007 text: text_style,
11008 scrollbar_width: px(13.),
11009 syntax: cx.theme().syntax().clone(),
11010 status: cx.theme().status().clone(),
11011 inlay_hints_style: HighlightStyle {
11012 color: Some(cx.theme().status().hint),
11013 ..HighlightStyle::default()
11014 },
11015 suggestions_style: HighlightStyle {
11016 color: Some(cx.theme().status().predictive),
11017 ..HighlightStyle::default()
11018 },
11019 },
11020 )
11021 }
11022}
11023
11024impl ViewInputHandler for Editor {
11025 fn text_for_range(
11026 &mut self,
11027 range_utf16: Range<usize>,
11028 cx: &mut ViewContext<Self>,
11029 ) -> Option<String> {
11030 Some(
11031 self.buffer
11032 .read(cx)
11033 .read(cx)
11034 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11035 .collect(),
11036 )
11037 }
11038
11039 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11040 // Prevent the IME menu from appearing when holding down an alphabetic key
11041 // while input is disabled.
11042 if !self.input_enabled {
11043 return None;
11044 }
11045
11046 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11047 Some(range.start.0..range.end.0)
11048 }
11049
11050 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11051 let snapshot = self.buffer.read(cx).read(cx);
11052 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11053 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11054 }
11055
11056 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11057 self.clear_highlights::<InputComposition>(cx);
11058 self.ime_transaction.take();
11059 }
11060
11061 fn replace_text_in_range(
11062 &mut self,
11063 range_utf16: Option<Range<usize>>,
11064 text: &str,
11065 cx: &mut ViewContext<Self>,
11066 ) {
11067 if !self.input_enabled {
11068 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11069 return;
11070 }
11071
11072 self.transact(cx, |this, cx| {
11073 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11074 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11075 Some(this.selection_replacement_ranges(range_utf16, cx))
11076 } else {
11077 this.marked_text_ranges(cx)
11078 };
11079
11080 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11081 let newest_selection_id = this.selections.newest_anchor().id;
11082 this.selections
11083 .all::<OffsetUtf16>(cx)
11084 .iter()
11085 .zip(ranges_to_replace.iter())
11086 .find_map(|(selection, range)| {
11087 if selection.id == newest_selection_id {
11088 Some(
11089 (range.start.0 as isize - selection.head().0 as isize)
11090 ..(range.end.0 as isize - selection.head().0 as isize),
11091 )
11092 } else {
11093 None
11094 }
11095 })
11096 });
11097
11098 cx.emit(EditorEvent::InputHandled {
11099 utf16_range_to_replace: range_to_replace,
11100 text: text.into(),
11101 });
11102
11103 if let Some(new_selected_ranges) = new_selected_ranges {
11104 this.change_selections(None, cx, |selections| {
11105 selections.select_ranges(new_selected_ranges)
11106 });
11107 this.backspace(&Default::default(), cx);
11108 }
11109
11110 this.handle_input(text, cx);
11111 });
11112
11113 if let Some(transaction) = self.ime_transaction {
11114 self.buffer.update(cx, |buffer, cx| {
11115 buffer.group_until_transaction(transaction, cx);
11116 });
11117 }
11118
11119 self.unmark_text(cx);
11120 }
11121
11122 fn replace_and_mark_text_in_range(
11123 &mut self,
11124 range_utf16: Option<Range<usize>>,
11125 text: &str,
11126 new_selected_range_utf16: Option<Range<usize>>,
11127 cx: &mut ViewContext<Self>,
11128 ) {
11129 if !self.input_enabled {
11130 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11131 return;
11132 }
11133
11134 let transaction = self.transact(cx, |this, cx| {
11135 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11136 let snapshot = this.buffer.read(cx).read(cx);
11137 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11138 for marked_range in &mut marked_ranges {
11139 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11140 marked_range.start.0 += relative_range_utf16.start;
11141 marked_range.start =
11142 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11143 marked_range.end =
11144 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11145 }
11146 }
11147 Some(marked_ranges)
11148 } else if let Some(range_utf16) = range_utf16 {
11149 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11150 Some(this.selection_replacement_ranges(range_utf16, cx))
11151 } else {
11152 None
11153 };
11154
11155 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11156 let newest_selection_id = this.selections.newest_anchor().id;
11157 this.selections
11158 .all::<OffsetUtf16>(cx)
11159 .iter()
11160 .zip(ranges_to_replace.iter())
11161 .find_map(|(selection, range)| {
11162 if selection.id == newest_selection_id {
11163 Some(
11164 (range.start.0 as isize - selection.head().0 as isize)
11165 ..(range.end.0 as isize - selection.head().0 as isize),
11166 )
11167 } else {
11168 None
11169 }
11170 })
11171 });
11172
11173 cx.emit(EditorEvent::InputHandled {
11174 utf16_range_to_replace: range_to_replace,
11175 text: text.into(),
11176 });
11177
11178 if let Some(ranges) = ranges_to_replace {
11179 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11180 }
11181
11182 let marked_ranges = {
11183 let snapshot = this.buffer.read(cx).read(cx);
11184 this.selections
11185 .disjoint_anchors()
11186 .iter()
11187 .map(|selection| {
11188 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11189 })
11190 .collect::<Vec<_>>()
11191 };
11192
11193 if text.is_empty() {
11194 this.unmark_text(cx);
11195 } else {
11196 this.highlight_text::<InputComposition>(
11197 marked_ranges.clone(),
11198 HighlightStyle {
11199 underline: Some(UnderlineStyle {
11200 thickness: px(1.),
11201 color: None,
11202 wavy: false,
11203 }),
11204 ..Default::default()
11205 },
11206 cx,
11207 );
11208 }
11209
11210 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11211 let use_autoclose = this.use_autoclose;
11212 this.set_use_autoclose(false);
11213 this.handle_input(text, cx);
11214 this.set_use_autoclose(use_autoclose);
11215
11216 if let Some(new_selected_range) = new_selected_range_utf16 {
11217 let snapshot = this.buffer.read(cx).read(cx);
11218 let new_selected_ranges = marked_ranges
11219 .into_iter()
11220 .map(|marked_range| {
11221 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11222 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11223 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11224 snapshot.clip_offset_utf16(new_start, Bias::Left)
11225 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11226 })
11227 .collect::<Vec<_>>();
11228
11229 drop(snapshot);
11230 this.change_selections(None, cx, |selections| {
11231 selections.select_ranges(new_selected_ranges)
11232 });
11233 }
11234 });
11235
11236 self.ime_transaction = self.ime_transaction.or(transaction);
11237 if let Some(transaction) = self.ime_transaction {
11238 self.buffer.update(cx, |buffer, cx| {
11239 buffer.group_until_transaction(transaction, cx);
11240 });
11241 }
11242
11243 if self.text_highlights::<InputComposition>(cx).is_none() {
11244 self.ime_transaction.take();
11245 }
11246 }
11247
11248 fn bounds_for_range(
11249 &mut self,
11250 range_utf16: Range<usize>,
11251 element_bounds: gpui::Bounds<Pixels>,
11252 cx: &mut ViewContext<Self>,
11253 ) -> Option<gpui::Bounds<Pixels>> {
11254 let text_layout_details = self.text_layout_details(cx);
11255 let style = &text_layout_details.editor_style;
11256 let font_id = cx.text_system().resolve_font(&style.text.font());
11257 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11258 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11259 let em_width = cx
11260 .text_system()
11261 .typographic_bounds(font_id, font_size, 'm')
11262 .unwrap()
11263 .size
11264 .width;
11265
11266 let snapshot = self.snapshot(cx);
11267 let scroll_position = snapshot.scroll_position();
11268 let scroll_left = scroll_position.x * em_width;
11269
11270 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11271 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11272 + self.gutter_dimensions.width;
11273 let y = line_height * (start.row() as f32 - scroll_position.y);
11274
11275 Some(Bounds {
11276 origin: element_bounds.origin + point(x, y),
11277 size: size(em_width, line_height),
11278 })
11279 }
11280}
11281
11282trait SelectionExt {
11283 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11284 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
11285 -> Range<u32>;
11286}
11287
11288impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11289 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11290 let start = self
11291 .start
11292 .to_point(&map.buffer_snapshot)
11293 .to_display_point(map);
11294 let end = self
11295 .end
11296 .to_point(&map.buffer_snapshot)
11297 .to_display_point(map);
11298 if self.reversed {
11299 end..start
11300 } else {
11301 start..end
11302 }
11303 }
11304
11305 fn spanned_rows(
11306 &self,
11307 include_end_if_at_line_start: bool,
11308 map: &DisplaySnapshot,
11309 ) -> Range<u32> {
11310 let start = self.start.to_point(&map.buffer_snapshot);
11311 let mut end = self.end.to_point(&map.buffer_snapshot);
11312 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11313 end.row -= 1;
11314 }
11315
11316 let buffer_start = map.prev_line_boundary(start).0;
11317 let buffer_end = map.next_line_boundary(end).0;
11318 buffer_start.row..buffer_end.row + 1
11319 }
11320}
11321
11322impl<T: InvalidationRegion> InvalidationStack<T> {
11323 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11324 where
11325 S: Clone + ToOffset,
11326 {
11327 while let Some(region) = self.last() {
11328 let all_selections_inside_invalidation_ranges =
11329 if selections.len() == region.ranges().len() {
11330 selections
11331 .iter()
11332 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11333 .all(|(selection, invalidation_range)| {
11334 let head = selection.head().to_offset(buffer);
11335 invalidation_range.start <= head && invalidation_range.end >= head
11336 })
11337 } else {
11338 false
11339 };
11340
11341 if all_selections_inside_invalidation_ranges {
11342 break;
11343 } else {
11344 self.pop();
11345 }
11346 }
11347 }
11348}
11349
11350impl<T> Default for InvalidationStack<T> {
11351 fn default() -> Self {
11352 Self(Default::default())
11353 }
11354}
11355
11356impl<T> Deref for InvalidationStack<T> {
11357 type Target = Vec<T>;
11358
11359 fn deref(&self) -> &Self::Target {
11360 &self.0
11361 }
11362}
11363
11364impl<T> DerefMut for InvalidationStack<T> {
11365 fn deref_mut(&mut self) -> &mut Self::Target {
11366 &mut self.0
11367 }
11368}
11369
11370impl InvalidationRegion for SnippetState {
11371 fn ranges(&self) -> &[Range<Anchor>] {
11372 &self.ranges[self.active_index]
11373 }
11374}
11375
11376pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11377 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11378
11379 Box::new(move |cx: &mut BlockContext| {
11380 let group_id: SharedString = cx.block_id.to_string().into();
11381
11382 let mut text_style = cx.text_style().clone();
11383 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11384 let theme_settings = ThemeSettings::get_global(cx);
11385 text_style.font_family = theme_settings.buffer_font.family.clone();
11386 text_style.font_style = theme_settings.buffer_font.style;
11387 text_style.font_features = theme_settings.buffer_font.features.clone();
11388 text_style.font_weight = theme_settings.buffer_font.weight;
11389
11390 let multi_line_diagnostic = diagnostic.message.contains('\n');
11391
11392 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11393 if multi_line_diagnostic {
11394 v_flex()
11395 } else {
11396 h_flex()
11397 }
11398 .children(diagnostic.is_primary.then(|| {
11399 IconButton::new(("close-block", block_id), IconName::XCircle)
11400 .icon_color(Color::Muted)
11401 .size(ButtonSize::Compact)
11402 .style(ButtonStyle::Transparent)
11403 .visible_on_hover(group_id.clone())
11404 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11405 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11406 }))
11407 .child(
11408 IconButton::new(("copy-block", block_id), IconName::Copy)
11409 .icon_color(Color::Muted)
11410 .size(ButtonSize::Compact)
11411 .style(ButtonStyle::Transparent)
11412 .visible_on_hover(group_id.clone())
11413 .on_click({
11414 let message = diagnostic.message.clone();
11415 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11416 })
11417 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11418 )
11419 };
11420
11421 let icon_size = buttons(&diagnostic, cx.block_id)
11422 .into_any_element()
11423 .layout_as_root(AvailableSpace::min_size(), cx);
11424
11425 h_flex()
11426 .id(cx.block_id)
11427 .group(group_id.clone())
11428 .relative()
11429 .size_full()
11430 .pl(cx.gutter_dimensions.width)
11431 .w(cx.max_width + cx.gutter_dimensions.width)
11432 .child(
11433 div()
11434 .flex()
11435 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11436 .flex_shrink(),
11437 )
11438 .child(buttons(&diagnostic, cx.block_id))
11439 .child(div().flex().flex_shrink_0().child(
11440 StyledText::new(text_without_backticks.clone()).with_highlights(
11441 &text_style,
11442 code_ranges.iter().map(|range| {
11443 (
11444 range.clone(),
11445 HighlightStyle {
11446 font_weight: Some(FontWeight::BOLD),
11447 ..Default::default()
11448 },
11449 )
11450 }),
11451 ),
11452 ))
11453 .into_any_element()
11454 })
11455}
11456
11457pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11458 let mut text_without_backticks = String::new();
11459 let mut code_ranges = Vec::new();
11460
11461 if let Some(source) = &diagnostic.source {
11462 text_without_backticks.push_str(&source);
11463 code_ranges.push(0..source.len());
11464 text_without_backticks.push_str(": ");
11465 }
11466
11467 let mut prev_offset = 0;
11468 let mut in_code_block = false;
11469 for (ix, _) in diagnostic
11470 .message
11471 .match_indices('`')
11472 .chain([(diagnostic.message.len(), "")])
11473 {
11474 let prev_len = text_without_backticks.len();
11475 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11476 prev_offset = ix + 1;
11477 if in_code_block {
11478 code_ranges.push(prev_len..text_without_backticks.len());
11479 in_code_block = false;
11480 } else {
11481 in_code_block = true;
11482 }
11483 }
11484
11485 (text_without_backticks.into(), code_ranges)
11486}
11487
11488fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11489 match (severity, valid) {
11490 (DiagnosticSeverity::ERROR, true) => colors.error,
11491 (DiagnosticSeverity::ERROR, false) => colors.error,
11492 (DiagnosticSeverity::WARNING, true) => colors.warning,
11493 (DiagnosticSeverity::WARNING, false) => colors.warning,
11494 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11495 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11496 (DiagnosticSeverity::HINT, true) => colors.info,
11497 (DiagnosticSeverity::HINT, false) => colors.info,
11498 _ => colors.ignored,
11499 }
11500}
11501
11502pub fn styled_runs_for_code_label<'a>(
11503 label: &'a CodeLabel,
11504 syntax_theme: &'a theme::SyntaxTheme,
11505) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11506 let fade_out = HighlightStyle {
11507 fade_out: Some(0.35),
11508 ..Default::default()
11509 };
11510
11511 let mut prev_end = label.filter_range.end;
11512 label
11513 .runs
11514 .iter()
11515 .enumerate()
11516 .flat_map(move |(ix, (range, highlight_id))| {
11517 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11518 style
11519 } else {
11520 return Default::default();
11521 };
11522 let mut muted_style = style;
11523 muted_style.highlight(fade_out);
11524
11525 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11526 if range.start >= label.filter_range.end {
11527 if range.start > prev_end {
11528 runs.push((prev_end..range.start, fade_out));
11529 }
11530 runs.push((range.clone(), muted_style));
11531 } else if range.end <= label.filter_range.end {
11532 runs.push((range.clone(), style));
11533 } else {
11534 runs.push((range.start..label.filter_range.end, style));
11535 runs.push((label.filter_range.end..range.end, muted_style));
11536 }
11537 prev_end = cmp::max(prev_end, range.end);
11538
11539 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11540 runs.push((prev_end..label.text.len(), fade_out));
11541 }
11542
11543 runs
11544 })
11545}
11546
11547pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11548 let mut prev_index = 0;
11549 let mut prev_codepoint: Option<char> = None;
11550 text.char_indices()
11551 .chain([(text.len(), '\0')])
11552 .filter_map(move |(index, codepoint)| {
11553 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11554 let is_boundary = index == text.len()
11555 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11556 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11557 if is_boundary {
11558 let chunk = &text[prev_index..index];
11559 prev_index = index;
11560 Some(chunk)
11561 } else {
11562 None
11563 }
11564 })
11565}
11566
11567trait RangeToAnchorExt {
11568 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11569}
11570
11571impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11572 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11573 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11574 }
11575}