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, RangeInclusive<Anchor>, Option<Hsla>)>>,
452 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
453 scrollbar_marker_state: ScrollbarMarkerState,
454 nav_history: Option<ItemNavHistory>,
455 context_menu: RwLock<Option<ContextMenu>>,
456 mouse_context_menu: Option<MouseContextMenu>,
457 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
458 find_all_references_task_sources: Vec<Anchor>,
459 next_completion_id: CompletionId,
460 completion_documentation_pre_resolve_debounce: DebouncedDelay,
461 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
462 code_actions_task: Option<Task<()>>,
463 document_highlights_task: Option<Task<()>>,
464 pending_rename: Option<RenameState>,
465 searchable: bool,
466 cursor_shape: CursorShape,
467 collapse_matches: bool,
468 autoindent_mode: Option<AutoindentMode>,
469 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
470 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
471 input_enabled: bool,
472 use_modal_editing: bool,
473 read_only: bool,
474 leader_peer_id: Option<PeerId>,
475 remote_id: Option<ViewId>,
476 hover_state: HoverState,
477 gutter_hovered: bool,
478 hovered_link_state: Option<HoveredLinkState>,
479 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
480 active_inline_completion: Option<Inlay>,
481 show_inline_completions: bool,
482 inlay_hint_cache: InlayHintCache,
483 expanded_hunks: ExpandedHunks,
484 next_inlay_id: usize,
485 _subscriptions: Vec<Subscription>,
486 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
487 gutter_dimensions: GutterDimensions,
488 pub vim_replace_map: HashMap<Range<usize>, String>,
489 style: Option<EditorStyle>,
490 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
491 use_autoclose: bool,
492 auto_replace_emoji_shortcode: bool,
493 show_git_blame_gutter: bool,
494 show_git_blame_inline: bool,
495 show_git_blame_inline_delay_task: Option<Task<()>>,
496 git_blame_inline_enabled: bool,
497 blame: Option<Model<GitBlame>>,
498 blame_subscription: Option<Subscription>,
499 custom_context_menu: Option<
500 Box<
501 dyn 'static
502 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
503 >,
504 >,
505 last_bounds: Option<Bounds<Pixels>>,
506 expect_bounds_change: Option<Bounds<Pixels>>,
507 tasks: HashMap<u32, RunnableTasks>,
508 tasks_update_task: Option<Task<()>>,
509}
510
511#[derive(Clone)]
512pub struct EditorSnapshot {
513 pub mode: EditorMode,
514 show_gutter: bool,
515 render_git_blame_gutter: bool,
516 pub display_snapshot: DisplaySnapshot,
517 pub placeholder_text: Option<Arc<str>>,
518 is_focused: bool,
519 scroll_anchor: ScrollAnchor,
520 ongoing_scroll: OngoingScroll,
521}
522
523const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
524
525#[derive(Debug, Clone, Copy)]
526pub struct GutterDimensions {
527 pub left_padding: Pixels,
528 pub right_padding: Pixels,
529 pub width: Pixels,
530 pub margin: Pixels,
531 pub git_blame_entries_width: Option<Pixels>,
532}
533
534impl Default for GutterDimensions {
535 fn default() -> Self {
536 Self {
537 left_padding: Pixels::ZERO,
538 right_padding: Pixels::ZERO,
539 width: Pixels::ZERO,
540 margin: Pixels::ZERO,
541 git_blame_entries_width: None,
542 }
543 }
544}
545
546#[derive(Debug)]
547pub struct RemoteSelection {
548 pub replica_id: ReplicaId,
549 pub selection: Selection<Anchor>,
550 pub cursor_shape: CursorShape,
551 pub peer_id: PeerId,
552 pub line_mode: bool,
553 pub participant_index: Option<ParticipantIndex>,
554 pub user_name: Option<SharedString>,
555}
556
557#[derive(Clone, Debug)]
558struct SelectionHistoryEntry {
559 selections: Arc<[Selection<Anchor>]>,
560 select_next_state: Option<SelectNextState>,
561 select_prev_state: Option<SelectNextState>,
562 add_selections_state: Option<AddSelectionsState>,
563}
564
565enum SelectionHistoryMode {
566 Normal,
567 Undoing,
568 Redoing,
569}
570
571#[derive(Clone, PartialEq, Eq, Hash)]
572struct HoveredCursor {
573 replica_id: u16,
574 selection_id: usize,
575}
576
577impl Default for SelectionHistoryMode {
578 fn default() -> Self {
579 Self::Normal
580 }
581}
582
583#[derive(Default)]
584struct SelectionHistory {
585 #[allow(clippy::type_complexity)]
586 selections_by_transaction:
587 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
588 mode: SelectionHistoryMode,
589 undo_stack: VecDeque<SelectionHistoryEntry>,
590 redo_stack: VecDeque<SelectionHistoryEntry>,
591}
592
593impl SelectionHistory {
594 fn insert_transaction(
595 &mut self,
596 transaction_id: TransactionId,
597 selections: Arc<[Selection<Anchor>]>,
598 ) {
599 self.selections_by_transaction
600 .insert(transaction_id, (selections, None));
601 }
602
603 #[allow(clippy::type_complexity)]
604 fn transaction(
605 &self,
606 transaction_id: TransactionId,
607 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
608 self.selections_by_transaction.get(&transaction_id)
609 }
610
611 #[allow(clippy::type_complexity)]
612 fn transaction_mut(
613 &mut self,
614 transaction_id: TransactionId,
615 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
616 self.selections_by_transaction.get_mut(&transaction_id)
617 }
618
619 fn push(&mut self, entry: SelectionHistoryEntry) {
620 if !entry.selections.is_empty() {
621 match self.mode {
622 SelectionHistoryMode::Normal => {
623 self.push_undo(entry);
624 self.redo_stack.clear();
625 }
626 SelectionHistoryMode::Undoing => self.push_redo(entry),
627 SelectionHistoryMode::Redoing => self.push_undo(entry),
628 }
629 }
630 }
631
632 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
633 if self
634 .undo_stack
635 .back()
636 .map_or(true, |e| e.selections != entry.selections)
637 {
638 self.undo_stack.push_back(entry);
639 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
640 self.undo_stack.pop_front();
641 }
642 }
643 }
644
645 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
646 if self
647 .redo_stack
648 .back()
649 .map_or(true, |e| e.selections != entry.selections)
650 {
651 self.redo_stack.push_back(entry);
652 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
653 self.redo_stack.pop_front();
654 }
655 }
656 }
657}
658
659#[derive(Clone, Debug)]
660struct AddSelectionsState {
661 above: bool,
662 stack: Vec<usize>,
663}
664
665#[derive(Clone)]
666struct SelectNextState {
667 query: AhoCorasick,
668 wordwise: bool,
669 done: bool,
670}
671
672impl std::fmt::Debug for SelectNextState {
673 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
674 f.debug_struct(std::any::type_name::<Self>())
675 .field("wordwise", &self.wordwise)
676 .field("done", &self.done)
677 .finish()
678 }
679}
680
681#[derive(Debug)]
682struct AutocloseRegion {
683 selection_id: usize,
684 range: Range<Anchor>,
685 pair: BracketPair,
686}
687
688#[derive(Debug)]
689struct SnippetState {
690 ranges: Vec<Vec<Range<Anchor>>>,
691 active_index: usize,
692}
693
694#[doc(hidden)]
695pub struct RenameState {
696 pub range: Range<Anchor>,
697 pub old_name: Arc<str>,
698 pub editor: View<Editor>,
699 block_id: BlockId,
700}
701
702struct InvalidationStack<T>(Vec<T>);
703
704struct RegisteredInlineCompletionProvider {
705 provider: Arc<dyn InlineCompletionProviderHandle>,
706 _subscription: Subscription,
707}
708
709enum ContextMenu {
710 Completions(CompletionsMenu),
711 CodeActions(CodeActionsMenu),
712}
713
714impl ContextMenu {
715 fn select_first(
716 &mut self,
717 project: Option<&Model<Project>>,
718 cx: &mut ViewContext<Editor>,
719 ) -> bool {
720 if self.visible() {
721 match self {
722 ContextMenu::Completions(menu) => menu.select_first(project, cx),
723 ContextMenu::CodeActions(menu) => menu.select_first(cx),
724 }
725 true
726 } else {
727 false
728 }
729 }
730
731 fn select_prev(
732 &mut self,
733 project: Option<&Model<Project>>,
734 cx: &mut ViewContext<Editor>,
735 ) -> bool {
736 if self.visible() {
737 match self {
738 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
739 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
740 }
741 true
742 } else {
743 false
744 }
745 }
746
747 fn select_next(
748 &mut self,
749 project: Option<&Model<Project>>,
750 cx: &mut ViewContext<Editor>,
751 ) -> bool {
752 if self.visible() {
753 match self {
754 ContextMenu::Completions(menu) => menu.select_next(project, cx),
755 ContextMenu::CodeActions(menu) => menu.select_next(cx),
756 }
757 true
758 } else {
759 false
760 }
761 }
762
763 fn select_last(
764 &mut self,
765 project: Option<&Model<Project>>,
766 cx: &mut ViewContext<Editor>,
767 ) -> bool {
768 if self.visible() {
769 match self {
770 ContextMenu::Completions(menu) => menu.select_last(project, cx),
771 ContextMenu::CodeActions(menu) => menu.select_last(cx),
772 }
773 true
774 } else {
775 false
776 }
777 }
778
779 fn visible(&self) -> bool {
780 match self {
781 ContextMenu::Completions(menu) => menu.visible(),
782 ContextMenu::CodeActions(menu) => menu.visible(),
783 }
784 }
785
786 fn render(
787 &self,
788 cursor_position: DisplayPoint,
789 style: &EditorStyle,
790 max_height: Pixels,
791 workspace: Option<WeakView<Workspace>>,
792 cx: &mut ViewContext<Editor>,
793 ) -> (ContextMenuOrigin, AnyElement) {
794 match self {
795 ContextMenu::Completions(menu) => (
796 ContextMenuOrigin::EditorPoint(cursor_position),
797 menu.render(style, max_height, workspace, cx),
798 ),
799 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
800 }
801 }
802}
803
804enum ContextMenuOrigin {
805 EditorPoint(DisplayPoint),
806 GutterIndicator(u32),
807}
808
809#[derive(Clone)]
810struct CompletionsMenu {
811 id: CompletionId,
812 initial_position: Anchor,
813 buffer: Model<Buffer>,
814 completions: Arc<RwLock<Box<[Completion]>>>,
815 match_candidates: Arc<[StringMatchCandidate]>,
816 matches: Arc<[StringMatch]>,
817 selected_item: usize,
818 scroll_handle: UniformListScrollHandle,
819 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
820}
821
822impl CompletionsMenu {
823 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
824 self.selected_item = 0;
825 self.scroll_handle.scroll_to_item(self.selected_item);
826 self.attempt_resolve_selected_completion_documentation(project, cx);
827 cx.notify();
828 }
829
830 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
831 if self.selected_item > 0 {
832 self.selected_item -= 1;
833 } else {
834 self.selected_item = self.matches.len() - 1;
835 }
836 self.scroll_handle.scroll_to_item(self.selected_item);
837 self.attempt_resolve_selected_completion_documentation(project, cx);
838 cx.notify();
839 }
840
841 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
842 if self.selected_item + 1 < self.matches.len() {
843 self.selected_item += 1;
844 } else {
845 self.selected_item = 0;
846 }
847 self.scroll_handle.scroll_to_item(self.selected_item);
848 self.attempt_resolve_selected_completion_documentation(project, cx);
849 cx.notify();
850 }
851
852 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
853 self.selected_item = self.matches.len() - 1;
854 self.scroll_handle.scroll_to_item(self.selected_item);
855 self.attempt_resolve_selected_completion_documentation(project, cx);
856 cx.notify();
857 }
858
859 fn pre_resolve_completion_documentation(
860 buffer: Model<Buffer>,
861 completions: Arc<RwLock<Box<[Completion]>>>,
862 matches: Arc<[StringMatch]>,
863 editor: &Editor,
864 cx: &mut ViewContext<Editor>,
865 ) -> Task<()> {
866 let settings = EditorSettings::get_global(cx);
867 if !settings.show_completion_documentation {
868 return Task::ready(());
869 }
870
871 let Some(provider) = editor.completion_provider.as_ref() else {
872 return Task::ready(());
873 };
874
875 let resolve_task = provider.resolve_completions(
876 buffer,
877 matches.iter().map(|m| m.candidate_id).collect(),
878 completions.clone(),
879 cx,
880 );
881
882 return cx.spawn(move |this, mut cx| async move {
883 if let Some(true) = resolve_task.await.log_err() {
884 this.update(&mut cx, |_, cx| cx.notify()).ok();
885 }
886 });
887 }
888
889 fn attempt_resolve_selected_completion_documentation(
890 &mut self,
891 project: Option<&Model<Project>>,
892 cx: &mut ViewContext<Editor>,
893 ) {
894 let settings = EditorSettings::get_global(cx);
895 if !settings.show_completion_documentation {
896 return;
897 }
898
899 let completion_index = self.matches[self.selected_item].candidate_id;
900 let Some(project) = project else {
901 return;
902 };
903
904 let resolve_task = project.update(cx, |project, cx| {
905 project.resolve_completions(
906 self.buffer.clone(),
907 vec![completion_index],
908 self.completions.clone(),
909 cx,
910 )
911 });
912
913 let delay_ms =
914 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
915 let delay = Duration::from_millis(delay_ms);
916
917 self.selected_completion_documentation_resolve_debounce
918 .lock()
919 .fire_new(delay, cx, |_, cx| {
920 cx.spawn(move |this, mut cx| async move {
921 if let Some(true) = resolve_task.await.log_err() {
922 this.update(&mut cx, |_, cx| cx.notify()).ok();
923 }
924 })
925 });
926 }
927
928 fn visible(&self) -> bool {
929 !self.matches.is_empty()
930 }
931
932 fn render(
933 &self,
934 style: &EditorStyle,
935 max_height: Pixels,
936 workspace: Option<WeakView<Workspace>>,
937 cx: &mut ViewContext<Editor>,
938 ) -> AnyElement {
939 let settings = EditorSettings::get_global(cx);
940 let show_completion_documentation = settings.show_completion_documentation;
941
942 let widest_completion_ix = self
943 .matches
944 .iter()
945 .enumerate()
946 .max_by_key(|(_, mat)| {
947 let completions = self.completions.read();
948 let completion = &completions[mat.candidate_id];
949 let documentation = &completion.documentation;
950
951 let mut len = completion.label.text.chars().count();
952 if let Some(Documentation::SingleLine(text)) = documentation {
953 if show_completion_documentation {
954 len += text.chars().count();
955 }
956 }
957
958 len
959 })
960 .map(|(ix, _)| ix);
961
962 let completions = self.completions.clone();
963 let matches = self.matches.clone();
964 let selected_item = self.selected_item;
965 let style = style.clone();
966
967 let multiline_docs = if show_completion_documentation {
968 let mat = &self.matches[selected_item];
969 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
970 Some(Documentation::MultiLinePlainText(text)) => {
971 Some(div().child(SharedString::from(text.clone())))
972 }
973 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
974 Some(div().child(render_parsed_markdown(
975 "completions_markdown",
976 parsed,
977 &style,
978 workspace,
979 cx,
980 )))
981 }
982 _ => None,
983 };
984 multiline_docs.map(|div| {
985 div.id("multiline_docs")
986 .max_h(max_height)
987 .flex_1()
988 .px_1p5()
989 .py_1()
990 .min_w(px(260.))
991 .max_w(px(640.))
992 .w(px(500.))
993 .overflow_y_scroll()
994 .occlude()
995 })
996 } else {
997 None
998 };
999
1000 let list = uniform_list(
1001 cx.view().clone(),
1002 "completions",
1003 matches.len(),
1004 move |_editor, range, cx| {
1005 let start_ix = range.start;
1006 let completions_guard = completions.read();
1007
1008 matches[range]
1009 .iter()
1010 .enumerate()
1011 .map(|(ix, mat)| {
1012 let item_ix = start_ix + ix;
1013 let candidate_id = mat.candidate_id;
1014 let completion = &completions_guard[candidate_id];
1015
1016 let documentation = if show_completion_documentation {
1017 &completion.documentation
1018 } else {
1019 &None
1020 };
1021
1022 let highlights = gpui::combine_highlights(
1023 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1024 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1025 |(range, mut highlight)| {
1026 // Ignore font weight for syntax highlighting, as we'll use it
1027 // for fuzzy matches.
1028 highlight.font_weight = None;
1029
1030 if completion.lsp_completion.deprecated.unwrap_or(false) {
1031 highlight.strikethrough = Some(StrikethroughStyle {
1032 thickness: 1.0.into(),
1033 ..Default::default()
1034 });
1035 highlight.color = Some(cx.theme().colors().text_muted);
1036 }
1037
1038 (range, highlight)
1039 },
1040 ),
1041 );
1042 let completion_label = StyledText::new(completion.label.text.clone())
1043 .with_highlights(&style.text, highlights);
1044 let documentation_label =
1045 if let Some(Documentation::SingleLine(text)) = documentation {
1046 if text.trim().is_empty() {
1047 None
1048 } else {
1049 Some(
1050 h_flex().ml_4().child(
1051 Label::new(text.clone())
1052 .size(LabelSize::Small)
1053 .color(Color::Muted),
1054 ),
1055 )
1056 }
1057 } else {
1058 None
1059 };
1060
1061 div().min_w(px(220.)).max_w(px(540.)).child(
1062 ListItem::new(mat.candidate_id)
1063 .inset(true)
1064 .selected(item_ix == selected_item)
1065 .on_click(cx.listener(move |editor, _event, cx| {
1066 cx.stop_propagation();
1067 if let Some(task) = editor.confirm_completion(
1068 &ConfirmCompletion {
1069 item_ix: Some(item_ix),
1070 },
1071 cx,
1072 ) {
1073 task.detach_and_log_err(cx)
1074 }
1075 }))
1076 .child(h_flex().overflow_hidden().child(completion_label))
1077 .end_slot::<Div>(documentation_label),
1078 )
1079 })
1080 .collect()
1081 },
1082 )
1083 .occlude()
1084 .max_h(max_height)
1085 .track_scroll(self.scroll_handle.clone())
1086 .with_width_from_item(widest_completion_ix);
1087
1088 Popover::new()
1089 .child(list)
1090 .when_some(multiline_docs, |popover, multiline_docs| {
1091 popover.aside(multiline_docs)
1092 })
1093 .into_any_element()
1094 }
1095
1096 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1097 let mut matches = if let Some(query) = query {
1098 fuzzy::match_strings(
1099 &self.match_candidates,
1100 query,
1101 query.chars().any(|c| c.is_uppercase()),
1102 100,
1103 &Default::default(),
1104 executor,
1105 )
1106 .await
1107 } else {
1108 self.match_candidates
1109 .iter()
1110 .enumerate()
1111 .map(|(candidate_id, candidate)| StringMatch {
1112 candidate_id,
1113 score: Default::default(),
1114 positions: Default::default(),
1115 string: candidate.string.clone(),
1116 })
1117 .collect()
1118 };
1119
1120 // Remove all candidates where the query's start does not match the start of any word in the candidate
1121 if let Some(query) = query {
1122 if let Some(query_start) = query.chars().next() {
1123 matches.retain(|string_match| {
1124 split_words(&string_match.string).any(|word| {
1125 // Check that the first codepoint of the word as lowercase matches the first
1126 // codepoint of the query as lowercase
1127 word.chars()
1128 .flat_map(|codepoint| codepoint.to_lowercase())
1129 .zip(query_start.to_lowercase())
1130 .all(|(word_cp, query_cp)| word_cp == query_cp)
1131 })
1132 });
1133 }
1134 }
1135
1136 let completions = self.completions.read();
1137 matches.sort_unstable_by_key(|mat| {
1138 // We do want to strike a balance here between what the language server tells us
1139 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1140 // `Creat` and there is a local variable called `CreateComponent`).
1141 // So what we do is: we bucket all matches into two buckets
1142 // - Strong matches
1143 // - Weak matches
1144 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1145 // and the Weak matches are the rest.
1146 //
1147 // For the strong matches, we sort by the language-servers score first and for the weak
1148 // matches, we prefer our fuzzy finder first.
1149 //
1150 // The thinking behind that: it's useless to take the sort_text the language-server gives
1151 // us into account when it's obviously a bad match.
1152
1153 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1154 enum MatchScore<'a> {
1155 Strong {
1156 sort_text: Option<&'a str>,
1157 score: Reverse<OrderedFloat<f64>>,
1158 sort_key: (usize, &'a str),
1159 },
1160 Weak {
1161 score: Reverse<OrderedFloat<f64>>,
1162 sort_text: Option<&'a str>,
1163 sort_key: (usize, &'a str),
1164 },
1165 }
1166
1167 let completion = &completions[mat.candidate_id];
1168 let sort_key = completion.sort_key();
1169 let sort_text = completion.lsp_completion.sort_text.as_deref();
1170 let score = Reverse(OrderedFloat(mat.score));
1171
1172 if mat.score >= 0.2 {
1173 MatchScore::Strong {
1174 sort_text,
1175 score,
1176 sort_key,
1177 }
1178 } else {
1179 MatchScore::Weak {
1180 score,
1181 sort_text,
1182 sort_key,
1183 }
1184 }
1185 });
1186
1187 for mat in &mut matches {
1188 let completion = &completions[mat.candidate_id];
1189 mat.string.clone_from(&completion.label.text);
1190 for position in &mut mat.positions {
1191 *position += completion.label.filter_range.start;
1192 }
1193 }
1194 drop(completions);
1195
1196 self.matches = matches.into();
1197 self.selected_item = 0;
1198 }
1199}
1200
1201#[derive(Clone)]
1202struct CodeActionContents {
1203 tasks: Option<Arc<ResolvedTasks>>,
1204 actions: Option<Arc<[CodeAction]>>,
1205}
1206
1207impl CodeActionContents {
1208 fn len(&self) -> usize {
1209 match (&self.tasks, &self.actions) {
1210 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1211 (Some(tasks), None) => tasks.templates.len(),
1212 (None, Some(actions)) => actions.len(),
1213 (None, None) => 0,
1214 }
1215 }
1216
1217 fn is_empty(&self) -> bool {
1218 match (&self.tasks, &self.actions) {
1219 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1220 (Some(tasks), None) => tasks.templates.is_empty(),
1221 (None, Some(actions)) => actions.is_empty(),
1222 (None, None) => true,
1223 }
1224 }
1225
1226 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1227 self.tasks
1228 .iter()
1229 .flat_map(|tasks| {
1230 tasks
1231 .templates
1232 .iter()
1233 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1234 })
1235 .chain(self.actions.iter().flat_map(|actions| {
1236 actions
1237 .iter()
1238 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1239 }))
1240 }
1241 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1242 match (&self.tasks, &self.actions) {
1243 (Some(tasks), Some(actions)) => {
1244 if index < tasks.templates.len() {
1245 tasks
1246 .templates
1247 .get(index)
1248 .cloned()
1249 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1250 } else {
1251 actions
1252 .get(index - tasks.templates.len())
1253 .cloned()
1254 .map(CodeActionsItem::CodeAction)
1255 }
1256 }
1257 (Some(tasks), None) => tasks
1258 .templates
1259 .get(index)
1260 .cloned()
1261 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1262 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1263 (None, None) => None,
1264 }
1265 }
1266}
1267
1268#[allow(clippy::large_enum_variant)]
1269#[derive(Clone)]
1270enum CodeActionsItem {
1271 Task(TaskSourceKind, ResolvedTask),
1272 CodeAction(CodeAction),
1273}
1274
1275impl CodeActionsItem {
1276 fn as_task(&self) -> Option<&ResolvedTask> {
1277 let Self::Task(_, task) = self else {
1278 return None;
1279 };
1280 Some(task)
1281 }
1282 fn as_code_action(&self) -> Option<&CodeAction> {
1283 let Self::CodeAction(action) = self else {
1284 return None;
1285 };
1286 Some(action)
1287 }
1288 fn label(&self) -> String {
1289 match self {
1290 Self::CodeAction(action) => action.lsp_action.title.clone(),
1291 Self::Task(_, task) => task.resolved_label.clone(),
1292 }
1293 }
1294}
1295
1296struct CodeActionsMenu {
1297 actions: CodeActionContents,
1298 buffer: Model<Buffer>,
1299 selected_item: usize,
1300 scroll_handle: UniformListScrollHandle,
1301 deployed_from_indicator: Option<u32>,
1302}
1303
1304impl CodeActionsMenu {
1305 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1306 self.selected_item = 0;
1307 self.scroll_handle.scroll_to_item(self.selected_item);
1308 cx.notify()
1309 }
1310
1311 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1312 if self.selected_item > 0 {
1313 self.selected_item -= 1;
1314 } else {
1315 self.selected_item = self.actions.len() - 1;
1316 }
1317 self.scroll_handle.scroll_to_item(self.selected_item);
1318 cx.notify();
1319 }
1320
1321 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1322 if self.selected_item + 1 < self.actions.len() {
1323 self.selected_item += 1;
1324 } else {
1325 self.selected_item = 0;
1326 }
1327 self.scroll_handle.scroll_to_item(self.selected_item);
1328 cx.notify();
1329 }
1330
1331 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1332 self.selected_item = self.actions.len() - 1;
1333 self.scroll_handle.scroll_to_item(self.selected_item);
1334 cx.notify()
1335 }
1336
1337 fn visible(&self) -> bool {
1338 !self.actions.is_empty()
1339 }
1340
1341 fn render(
1342 &self,
1343 cursor_position: DisplayPoint,
1344 _style: &EditorStyle,
1345 max_height: Pixels,
1346 cx: &mut ViewContext<Editor>,
1347 ) -> (ContextMenuOrigin, AnyElement) {
1348 let actions = self.actions.clone();
1349 let selected_item = self.selected_item;
1350 let element = uniform_list(
1351 cx.view().clone(),
1352 "code_actions_menu",
1353 self.actions.len(),
1354 move |_this, range, cx| {
1355 actions
1356 .iter()
1357 .skip(range.start)
1358 .take(range.end - range.start)
1359 .enumerate()
1360 .map(|(ix, action)| {
1361 let item_ix = range.start + ix;
1362 let selected = selected_item == item_ix;
1363 let colors = cx.theme().colors();
1364 div()
1365 .px_2()
1366 .text_color(colors.text)
1367 .when(selected, |style| {
1368 style
1369 .bg(colors.element_active)
1370 .text_color(colors.text_accent)
1371 })
1372 .hover(|style| {
1373 style
1374 .bg(colors.element_hover)
1375 .text_color(colors.text_accent)
1376 })
1377 .whitespace_nowrap()
1378 .when_some(action.as_code_action(), |this, action| {
1379 this.on_mouse_down(
1380 MouseButton::Left,
1381 cx.listener(move |editor, _, cx| {
1382 cx.stop_propagation();
1383 if let Some(task) = editor.confirm_code_action(
1384 &ConfirmCodeAction {
1385 item_ix: Some(item_ix),
1386 },
1387 cx,
1388 ) {
1389 task.detach_and_log_err(cx)
1390 }
1391 }),
1392 )
1393 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1394 .child(SharedString::from(action.lsp_action.title.clone()))
1395 })
1396 .when_some(action.as_task(), |this, task| {
1397 this.on_mouse_down(
1398 MouseButton::Left,
1399 cx.listener(move |editor, _, cx| {
1400 cx.stop_propagation();
1401 if let Some(task) = editor.confirm_code_action(
1402 &ConfirmCodeAction {
1403 item_ix: Some(item_ix),
1404 },
1405 cx,
1406 ) {
1407 task.detach_and_log_err(cx)
1408 }
1409 }),
1410 )
1411 .child(SharedString::from(task.resolved_label.clone()))
1412 })
1413 })
1414 .collect()
1415 },
1416 )
1417 .elevation_1(cx)
1418 .px_2()
1419 .py_1()
1420 .max_h(max_height)
1421 .occlude()
1422 .track_scroll(self.scroll_handle.clone())
1423 .with_width_from_item(
1424 self.actions
1425 .iter()
1426 .enumerate()
1427 .max_by_key(|(_, action)| match action {
1428 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1429 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1430 })
1431 .map(|(ix, _)| ix),
1432 )
1433 .into_any_element();
1434
1435 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1436 ContextMenuOrigin::GutterIndicator(row)
1437 } else {
1438 ContextMenuOrigin::EditorPoint(cursor_position)
1439 };
1440
1441 (cursor_position, element)
1442 }
1443}
1444
1445#[derive(Debug)]
1446struct ActiveDiagnosticGroup {
1447 primary_range: Range<Anchor>,
1448 primary_message: String,
1449 blocks: HashMap<BlockId, Diagnostic>,
1450 is_valid: bool,
1451}
1452
1453#[derive(Serialize, Deserialize)]
1454pub struct ClipboardSelection {
1455 pub len: usize,
1456 pub is_entire_line: bool,
1457 pub first_line_indent: u32,
1458}
1459
1460#[derive(Debug)]
1461pub(crate) struct NavigationData {
1462 cursor_anchor: Anchor,
1463 cursor_position: Point,
1464 scroll_anchor: ScrollAnchor,
1465 scroll_top_row: u32,
1466}
1467
1468enum GotoDefinitionKind {
1469 Symbol,
1470 Type,
1471 Implementation,
1472}
1473
1474#[derive(Debug, Clone)]
1475enum InlayHintRefreshReason {
1476 Toggle(bool),
1477 SettingsChange(InlayHintSettings),
1478 NewLinesShown,
1479 BufferEdited(HashSet<Arc<Language>>),
1480 RefreshRequested,
1481 ExcerptsRemoved(Vec<ExcerptId>),
1482}
1483
1484impl InlayHintRefreshReason {
1485 fn description(&self) -> &'static str {
1486 match self {
1487 Self::Toggle(_) => "toggle",
1488 Self::SettingsChange(_) => "settings change",
1489 Self::NewLinesShown => "new lines shown",
1490 Self::BufferEdited(_) => "buffer edited",
1491 Self::RefreshRequested => "refresh requested",
1492 Self::ExcerptsRemoved(_) => "excerpts removed",
1493 }
1494 }
1495}
1496
1497impl Editor {
1498 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1499 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1500 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1501 Self::new(EditorMode::SingleLine, buffer, None, cx)
1502 }
1503
1504 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1505 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1506 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1507 Self::new(EditorMode::Full, buffer, None, cx)
1508 }
1509
1510 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1511 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1512 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1513 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1514 }
1515
1516 pub fn for_buffer(
1517 buffer: Model<Buffer>,
1518 project: Option<Model<Project>>,
1519 cx: &mut ViewContext<Self>,
1520 ) -> Self {
1521 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1522 Self::new(EditorMode::Full, buffer, project, cx)
1523 }
1524
1525 pub fn for_multibuffer(
1526 buffer: Model<MultiBuffer>,
1527 project: Option<Model<Project>>,
1528 cx: &mut ViewContext<Self>,
1529 ) -> Self {
1530 Self::new(EditorMode::Full, buffer, project, cx)
1531 }
1532
1533 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1534 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1535 self.display_map.update(cx, |display_map, cx| {
1536 let snapshot = display_map.snapshot(cx);
1537 clone.display_map.update(cx, |display_map, cx| {
1538 display_map.set_state(&snapshot, cx);
1539 });
1540 });
1541 clone.selections.clone_state(&self.selections);
1542 clone.scroll_manager.clone_state(&self.scroll_manager);
1543 clone.searchable = self.searchable;
1544 clone
1545 }
1546
1547 fn new(
1548 mode: EditorMode,
1549 buffer: Model<MultiBuffer>,
1550 project: Option<Model<Project>>,
1551 cx: &mut ViewContext<Self>,
1552 ) -> Self {
1553 let style = cx.text_style();
1554 let font_size = style.font_size.to_pixels(cx.rem_size());
1555 let display_map = cx.new_model(|cx| {
1556 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1557 });
1558
1559 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1560
1561 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1562
1563 let soft_wrap_mode_override =
1564 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1565
1566 let mut project_subscriptions = Vec::new();
1567 if mode == EditorMode::Full {
1568 if let Some(project) = project.as_ref() {
1569 if buffer.read(cx).is_singleton() {
1570 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1571 cx.emit(EditorEvent::TitleChanged);
1572 }));
1573 }
1574 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1575 if let project::Event::RefreshInlayHints = event {
1576 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1577 };
1578 }));
1579 }
1580 }
1581
1582 let inlay_hint_settings = inlay_hint_settings(
1583 selections.newest_anchor().head(),
1584 &buffer.read(cx).snapshot(cx),
1585 cx,
1586 );
1587
1588 let focus_handle = cx.focus_handle();
1589 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1590 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1591
1592 let mut this = Self {
1593 focus_handle,
1594 buffer: buffer.clone(),
1595 display_map: display_map.clone(),
1596 selections,
1597 scroll_manager: ScrollManager::new(cx),
1598 columnar_selection_tail: None,
1599 add_selections_state: None,
1600 select_next_state: None,
1601 select_prev_state: None,
1602 selection_history: Default::default(),
1603 autoclose_regions: Default::default(),
1604 snippet_stack: Default::default(),
1605 select_larger_syntax_node_stack: Vec::new(),
1606 ime_transaction: Default::default(),
1607 active_diagnostics: None,
1608 soft_wrap_mode_override,
1609 completion_provider: project.clone().map(|project| Box::new(project) as _),
1610 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1611 project,
1612 blink_manager: blink_manager.clone(),
1613 show_local_selections: true,
1614 mode,
1615 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1616 show_gutter: mode == EditorMode::Full,
1617 show_wrap_guides: None,
1618 placeholder_text: None,
1619 highlight_order: 0,
1620 highlighted_rows: HashMap::default(),
1621 background_highlights: Default::default(),
1622 scrollbar_marker_state: ScrollbarMarkerState::default(),
1623 nav_history: None,
1624 context_menu: RwLock::new(None),
1625 mouse_context_menu: None,
1626 completion_tasks: Default::default(),
1627 find_all_references_task_sources: Vec::new(),
1628 next_completion_id: 0,
1629 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1630 next_inlay_id: 0,
1631 available_code_actions: Default::default(),
1632 code_actions_task: Default::default(),
1633 document_highlights_task: Default::default(),
1634 pending_rename: Default::default(),
1635 searchable: true,
1636 cursor_shape: Default::default(),
1637 autoindent_mode: Some(AutoindentMode::EachLine),
1638 collapse_matches: false,
1639 workspace: None,
1640 keymap_context_layers: Default::default(),
1641 input_enabled: true,
1642 use_modal_editing: mode == EditorMode::Full,
1643 read_only: false,
1644 use_autoclose: true,
1645 auto_replace_emoji_shortcode: false,
1646 leader_peer_id: None,
1647 remote_id: None,
1648 hover_state: Default::default(),
1649 hovered_link_state: Default::default(),
1650 inline_completion_provider: None,
1651 active_inline_completion: None,
1652 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1653 expanded_hunks: ExpandedHunks::default(),
1654 gutter_hovered: false,
1655 pixel_position_of_newest_cursor: None,
1656 last_bounds: None,
1657 expect_bounds_change: None,
1658 gutter_dimensions: GutterDimensions::default(),
1659 style: None,
1660 show_cursor_names: false,
1661 hovered_cursors: Default::default(),
1662 editor_actions: Default::default(),
1663 vim_replace_map: Default::default(),
1664 show_inline_completions: mode == EditorMode::Full,
1665 custom_context_menu: None,
1666 show_git_blame_gutter: false,
1667 show_git_blame_inline: false,
1668 show_git_blame_inline_delay_task: None,
1669 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1670 blame: None,
1671 blame_subscription: None,
1672 tasks: Default::default(),
1673 _subscriptions: vec![
1674 cx.observe(&buffer, Self::on_buffer_changed),
1675 cx.subscribe(&buffer, Self::on_buffer_event),
1676 cx.observe(&display_map, Self::on_display_map_changed),
1677 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1678 cx.observe_global::<SettingsStore>(Self::settings_changed),
1679 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1680 cx.observe_window_activation(|editor, cx| {
1681 let active = cx.is_window_active();
1682 editor.blink_manager.update(cx, |blink_manager, cx| {
1683 if active {
1684 blink_manager.enable(cx);
1685 } else {
1686 blink_manager.show_cursor(cx);
1687 blink_manager.disable(cx);
1688 }
1689 });
1690 }),
1691 ],
1692 tasks_update_task: None,
1693 };
1694 this.tasks_update_task = Some(this.refresh_runnables(cx));
1695 this._subscriptions.extend(project_subscriptions);
1696
1697 this.end_selection(cx);
1698 this.scroll_manager.show_scrollbar(cx);
1699
1700 if mode == EditorMode::Full {
1701 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1702 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1703
1704 if this.git_blame_inline_enabled {
1705 this.git_blame_inline_enabled = true;
1706 this.start_git_blame_inline(false, cx);
1707 }
1708 }
1709
1710 this.report_editor_event("open", None, cx);
1711 this
1712 }
1713
1714 fn key_context(&self, cx: &AppContext) -> KeyContext {
1715 let mut key_context = KeyContext::new_with_defaults();
1716 key_context.add("Editor");
1717 let mode = match self.mode {
1718 EditorMode::SingleLine => "single_line",
1719 EditorMode::AutoHeight { .. } => "auto_height",
1720 EditorMode::Full => "full",
1721 };
1722 key_context.set("mode", mode);
1723 if self.pending_rename.is_some() {
1724 key_context.add("renaming");
1725 }
1726 if self.context_menu_visible() {
1727 match self.context_menu.read().as_ref() {
1728 Some(ContextMenu::Completions(_)) => {
1729 key_context.add("menu");
1730 key_context.add("showing_completions")
1731 }
1732 Some(ContextMenu::CodeActions(_)) => {
1733 key_context.add("menu");
1734 key_context.add("showing_code_actions")
1735 }
1736 None => {}
1737 }
1738 }
1739
1740 for layer in self.keymap_context_layers.values() {
1741 key_context.extend(layer);
1742 }
1743
1744 if let Some(extension) = self
1745 .buffer
1746 .read(cx)
1747 .as_singleton()
1748 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1749 {
1750 key_context.set("extension", extension.to_string());
1751 }
1752
1753 if self.has_active_inline_completion(cx) {
1754 key_context.add("copilot_suggestion");
1755 key_context.add("inline_completion");
1756 }
1757
1758 key_context
1759 }
1760
1761 pub fn new_file(
1762 workspace: &mut Workspace,
1763 _: &workspace::NewFile,
1764 cx: &mut ViewContext<Workspace>,
1765 ) {
1766 let project = workspace.project().clone();
1767 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1768
1769 cx.spawn(|workspace, mut cx| async move {
1770 let buffer = create.await?;
1771 workspace.update(&mut cx, |workspace, cx| {
1772 workspace.add_item_to_active_pane(
1773 Box::new(
1774 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1775 ),
1776 None,
1777 cx,
1778 )
1779 })
1780 })
1781 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1782 ErrorCode::RemoteUpgradeRequired => Some(format!(
1783 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1784 e.error_tag("required").unwrap_or("the latest version")
1785 )),
1786 _ => None,
1787 });
1788 }
1789
1790 pub fn new_file_in_direction(
1791 workspace: &mut Workspace,
1792 action: &workspace::NewFileInDirection,
1793 cx: &mut ViewContext<Workspace>,
1794 ) {
1795 let project = workspace.project().clone();
1796 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1797 let direction = action.0;
1798
1799 cx.spawn(|workspace, mut cx| async move {
1800 let buffer = create.await?;
1801 workspace.update(&mut cx, move |workspace, cx| {
1802 workspace.split_item(
1803 direction,
1804 Box::new(
1805 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1806 ),
1807 cx,
1808 )
1809 })?;
1810 anyhow::Ok(())
1811 })
1812 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1813 ErrorCode::RemoteUpgradeRequired => Some(format!(
1814 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1815 e.error_tag("required").unwrap_or("the latest version")
1816 )),
1817 _ => None,
1818 });
1819 }
1820
1821 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1822 self.buffer.read(cx).replica_id()
1823 }
1824
1825 pub fn leader_peer_id(&self) -> Option<PeerId> {
1826 self.leader_peer_id
1827 }
1828
1829 pub fn buffer(&self) -> &Model<MultiBuffer> {
1830 &self.buffer
1831 }
1832
1833 pub fn workspace(&self) -> Option<View<Workspace>> {
1834 self.workspace.as_ref()?.0.upgrade()
1835 }
1836
1837 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1838 self.buffer().read(cx).title(cx)
1839 }
1840
1841 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1842 EditorSnapshot {
1843 mode: self.mode,
1844 show_gutter: self.show_gutter,
1845 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1846 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1847 scroll_anchor: self.scroll_manager.anchor(),
1848 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1849 placeholder_text: self.placeholder_text.clone(),
1850 is_focused: self.focus_handle.is_focused(cx),
1851 }
1852 }
1853
1854 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1855 self.buffer.read(cx).language_at(point, cx)
1856 }
1857
1858 pub fn file_at<T: ToOffset>(
1859 &self,
1860 point: T,
1861 cx: &AppContext,
1862 ) -> Option<Arc<dyn language::File>> {
1863 self.buffer.read(cx).read(cx).file_at(point).cloned()
1864 }
1865
1866 pub fn active_excerpt(
1867 &self,
1868 cx: &AppContext,
1869 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1870 self.buffer
1871 .read(cx)
1872 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1873 }
1874
1875 pub fn mode(&self) -> EditorMode {
1876 self.mode
1877 }
1878
1879 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1880 self.collaboration_hub.as_deref()
1881 }
1882
1883 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1884 self.collaboration_hub = Some(hub);
1885 }
1886
1887 pub fn set_custom_context_menu(
1888 &mut self,
1889 f: impl 'static
1890 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1891 ) {
1892 self.custom_context_menu = Some(Box::new(f))
1893 }
1894
1895 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1896 self.completion_provider = Some(hub);
1897 }
1898
1899 pub fn set_inline_completion_provider<T>(
1900 &mut self,
1901 provider: Option<Model<T>>,
1902 cx: &mut ViewContext<Self>,
1903 ) where
1904 T: InlineCompletionProvider,
1905 {
1906 self.inline_completion_provider =
1907 provider.map(|provider| RegisteredInlineCompletionProvider {
1908 _subscription: cx.observe(&provider, |this, _, cx| {
1909 if this.focus_handle.is_focused(cx) {
1910 this.update_visible_inline_completion(cx);
1911 }
1912 }),
1913 provider: Arc::new(provider),
1914 });
1915 self.refresh_inline_completion(false, cx);
1916 }
1917
1918 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1919 self.placeholder_text.as_deref()
1920 }
1921
1922 pub fn set_placeholder_text(
1923 &mut self,
1924 placeholder_text: impl Into<Arc<str>>,
1925 cx: &mut ViewContext<Self>,
1926 ) {
1927 let placeholder_text = Some(placeholder_text.into());
1928 if self.placeholder_text != placeholder_text {
1929 self.placeholder_text = placeholder_text;
1930 cx.notify();
1931 }
1932 }
1933
1934 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1935 self.cursor_shape = cursor_shape;
1936 cx.notify();
1937 }
1938
1939 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1940 self.collapse_matches = collapse_matches;
1941 }
1942
1943 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1944 if self.collapse_matches {
1945 return range.start..range.start;
1946 }
1947 range.clone()
1948 }
1949
1950 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1951 if self.display_map.read(cx).clip_at_line_ends != clip {
1952 self.display_map
1953 .update(cx, |map, _| map.clip_at_line_ends = clip);
1954 }
1955 }
1956
1957 pub fn set_keymap_context_layer<Tag: 'static>(
1958 &mut self,
1959 context: KeyContext,
1960 cx: &mut ViewContext<Self>,
1961 ) {
1962 self.keymap_context_layers
1963 .insert(TypeId::of::<Tag>(), context);
1964 cx.notify();
1965 }
1966
1967 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1968 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1969 cx.notify();
1970 }
1971
1972 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1973 self.input_enabled = input_enabled;
1974 }
1975
1976 pub fn set_autoindent(&mut self, autoindent: bool) {
1977 if autoindent {
1978 self.autoindent_mode = Some(AutoindentMode::EachLine);
1979 } else {
1980 self.autoindent_mode = None;
1981 }
1982 }
1983
1984 pub fn read_only(&self, cx: &AppContext) -> bool {
1985 self.read_only || self.buffer.read(cx).read_only()
1986 }
1987
1988 pub fn set_read_only(&mut self, read_only: bool) {
1989 self.read_only = read_only;
1990 }
1991
1992 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1993 self.use_autoclose = autoclose;
1994 }
1995
1996 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1997 self.auto_replace_emoji_shortcode = auto_replace;
1998 }
1999
2000 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2001 self.show_inline_completions = show_inline_completions;
2002 }
2003
2004 pub fn set_use_modal_editing(&mut self, to: bool) {
2005 self.use_modal_editing = to;
2006 }
2007
2008 pub fn use_modal_editing(&self) -> bool {
2009 self.use_modal_editing
2010 }
2011
2012 fn selections_did_change(
2013 &mut self,
2014 local: bool,
2015 old_cursor_position: &Anchor,
2016 cx: &mut ViewContext<Self>,
2017 ) {
2018 // Copy selections to primary selection buffer
2019 #[cfg(target_os = "linux")]
2020 if local {
2021 let selections = self.selections.all::<usize>(cx);
2022 let buffer_handle = self.buffer.read(cx).read(cx);
2023
2024 let mut text = String::new();
2025 for (index, selection) in selections.iter().enumerate() {
2026 let text_for_selection = buffer_handle
2027 .text_for_range(selection.start..selection.end)
2028 .collect::<String>();
2029
2030 text.push_str(&text_for_selection);
2031 if index != selections.len() - 1 {
2032 text.push('\n');
2033 }
2034 }
2035
2036 if !text.is_empty() {
2037 cx.write_to_primary(ClipboardItem::new(text));
2038 }
2039 }
2040
2041 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2042 self.buffer.update(cx, |buffer, cx| {
2043 buffer.set_active_selections(
2044 &self.selections.disjoint_anchors(),
2045 self.selections.line_mode,
2046 self.cursor_shape,
2047 cx,
2048 )
2049 });
2050 }
2051
2052 let display_map = self
2053 .display_map
2054 .update(cx, |display_map, cx| display_map.snapshot(cx));
2055 let buffer = &display_map.buffer_snapshot;
2056 self.add_selections_state = None;
2057 self.select_next_state = None;
2058 self.select_prev_state = None;
2059 self.select_larger_syntax_node_stack.clear();
2060 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2061 self.snippet_stack
2062 .invalidate(&self.selections.disjoint_anchors(), buffer);
2063 self.take_rename(false, cx);
2064
2065 let new_cursor_position = self.selections.newest_anchor().head();
2066
2067 self.push_to_nav_history(
2068 *old_cursor_position,
2069 Some(new_cursor_position.to_point(buffer)),
2070 cx,
2071 );
2072
2073 if local {
2074 let new_cursor_position = self.selections.newest_anchor().head();
2075 let mut context_menu = self.context_menu.write();
2076 let completion_menu = match context_menu.as_ref() {
2077 Some(ContextMenu::Completions(menu)) => Some(menu),
2078
2079 _ => {
2080 *context_menu = None;
2081 None
2082 }
2083 };
2084
2085 if let Some(completion_menu) = completion_menu {
2086 let cursor_position = new_cursor_position.to_offset(buffer);
2087 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2088 if kind == Some(CharKind::Word)
2089 && word_range.to_inclusive().contains(&cursor_position)
2090 {
2091 let mut completion_menu = completion_menu.clone();
2092 drop(context_menu);
2093
2094 let query = Self::completion_query(buffer, cursor_position);
2095 cx.spawn(move |this, mut cx| async move {
2096 completion_menu
2097 .filter(query.as_deref(), cx.background_executor().clone())
2098 .await;
2099
2100 this.update(&mut cx, |this, cx| {
2101 let mut context_menu = this.context_menu.write();
2102 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2103 return;
2104 };
2105
2106 if menu.id > completion_menu.id {
2107 return;
2108 }
2109
2110 *context_menu = Some(ContextMenu::Completions(completion_menu));
2111 drop(context_menu);
2112 cx.notify();
2113 })
2114 })
2115 .detach();
2116
2117 self.show_completions(&ShowCompletions, cx);
2118 } else {
2119 drop(context_menu);
2120 self.hide_context_menu(cx);
2121 }
2122 } else {
2123 drop(context_menu);
2124 }
2125
2126 hide_hover(self, cx);
2127
2128 if old_cursor_position.to_display_point(&display_map).row()
2129 != new_cursor_position.to_display_point(&display_map).row()
2130 {
2131 self.available_code_actions.take();
2132 }
2133 self.refresh_code_actions(cx);
2134 self.refresh_document_highlights(cx);
2135 refresh_matching_bracket_highlights(self, cx);
2136 self.discard_inline_completion(cx);
2137 if self.git_blame_inline_enabled {
2138 self.start_inline_blame_timer(cx);
2139 }
2140 }
2141
2142 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2143 cx.emit(EditorEvent::SelectionsChanged { local });
2144
2145 if self.selections.disjoint_anchors().len() == 1 {
2146 cx.emit(SearchEvent::ActiveMatchChanged)
2147 }
2148
2149 cx.notify();
2150 }
2151
2152 pub fn change_selections<R>(
2153 &mut self,
2154 autoscroll: Option<Autoscroll>,
2155 cx: &mut ViewContext<Self>,
2156 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2157 ) -> R {
2158 let old_cursor_position = self.selections.newest_anchor().head();
2159 self.push_to_selection_history();
2160
2161 let (changed, result) = self.selections.change_with(cx, change);
2162
2163 if changed {
2164 if let Some(autoscroll) = autoscroll {
2165 self.request_autoscroll(autoscroll, cx);
2166 }
2167 self.selections_did_change(true, &old_cursor_position, cx);
2168 }
2169
2170 result
2171 }
2172
2173 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2174 where
2175 I: IntoIterator<Item = (Range<S>, T)>,
2176 S: ToOffset,
2177 T: Into<Arc<str>>,
2178 {
2179 if self.read_only(cx) {
2180 return;
2181 }
2182
2183 self.buffer
2184 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2185 }
2186
2187 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2188 where
2189 I: IntoIterator<Item = (Range<S>, T)>,
2190 S: ToOffset,
2191 T: Into<Arc<str>>,
2192 {
2193 if self.read_only(cx) {
2194 return;
2195 }
2196
2197 self.buffer.update(cx, |buffer, cx| {
2198 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2199 });
2200 }
2201
2202 pub fn edit_with_block_indent<I, S, T>(
2203 &mut self,
2204 edits: I,
2205 original_indent_columns: Vec<u32>,
2206 cx: &mut ViewContext<Self>,
2207 ) where
2208 I: IntoIterator<Item = (Range<S>, T)>,
2209 S: ToOffset,
2210 T: Into<Arc<str>>,
2211 {
2212 if self.read_only(cx) {
2213 return;
2214 }
2215
2216 self.buffer.update(cx, |buffer, cx| {
2217 buffer.edit(
2218 edits,
2219 Some(AutoindentMode::Block {
2220 original_indent_columns,
2221 }),
2222 cx,
2223 )
2224 });
2225 }
2226
2227 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2228 self.hide_context_menu(cx);
2229
2230 match phase {
2231 SelectPhase::Begin {
2232 position,
2233 add,
2234 click_count,
2235 } => self.begin_selection(position, add, click_count, cx),
2236 SelectPhase::BeginColumnar {
2237 position,
2238 goal_column,
2239 } => self.begin_columnar_selection(position, goal_column, cx),
2240 SelectPhase::Extend {
2241 position,
2242 click_count,
2243 } => self.extend_selection(position, click_count, cx),
2244 SelectPhase::Update {
2245 position,
2246 goal_column,
2247 scroll_delta,
2248 } => self.update_selection(position, goal_column, scroll_delta, cx),
2249 SelectPhase::End => self.end_selection(cx),
2250 }
2251 }
2252
2253 fn extend_selection(
2254 &mut self,
2255 position: DisplayPoint,
2256 click_count: usize,
2257 cx: &mut ViewContext<Self>,
2258 ) {
2259 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2260 let tail = self.selections.newest::<usize>(cx).tail();
2261 self.begin_selection(position, false, click_count, cx);
2262
2263 let position = position.to_offset(&display_map, Bias::Left);
2264 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2265
2266 let mut pending_selection = self
2267 .selections
2268 .pending_anchor()
2269 .expect("extend_selection not called with pending selection");
2270 if position >= tail {
2271 pending_selection.start = tail_anchor;
2272 } else {
2273 pending_selection.end = tail_anchor;
2274 pending_selection.reversed = true;
2275 }
2276
2277 let mut pending_mode = self.selections.pending_mode().unwrap();
2278 match &mut pending_mode {
2279 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2280 _ => {}
2281 }
2282
2283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2284 s.set_pending(pending_selection, pending_mode)
2285 });
2286 }
2287
2288 fn begin_selection(
2289 &mut self,
2290 position: DisplayPoint,
2291 add: bool,
2292 click_count: usize,
2293 cx: &mut ViewContext<Self>,
2294 ) {
2295 if !self.focus_handle.is_focused(cx) {
2296 cx.focus(&self.focus_handle);
2297 }
2298
2299 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2300 let buffer = &display_map.buffer_snapshot;
2301 let newest_selection = self.selections.newest_anchor().clone();
2302 let position = display_map.clip_point(position, Bias::Left);
2303
2304 let start;
2305 let end;
2306 let mode;
2307 let auto_scroll;
2308 match click_count {
2309 1 => {
2310 start = buffer.anchor_before(position.to_point(&display_map));
2311 end = start;
2312 mode = SelectMode::Character;
2313 auto_scroll = true;
2314 }
2315 2 => {
2316 let range = movement::surrounding_word(&display_map, position);
2317 start = buffer.anchor_before(range.start.to_point(&display_map));
2318 end = buffer.anchor_before(range.end.to_point(&display_map));
2319 mode = SelectMode::Word(start..end);
2320 auto_scroll = true;
2321 }
2322 3 => {
2323 let position = display_map
2324 .clip_point(position, Bias::Left)
2325 .to_point(&display_map);
2326 let line_start = display_map.prev_line_boundary(position).0;
2327 let next_line_start = buffer.clip_point(
2328 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2329 Bias::Left,
2330 );
2331 start = buffer.anchor_before(line_start);
2332 end = buffer.anchor_before(next_line_start);
2333 mode = SelectMode::Line(start..end);
2334 auto_scroll = true;
2335 }
2336 _ => {
2337 start = buffer.anchor_before(0);
2338 end = buffer.anchor_before(buffer.len());
2339 mode = SelectMode::All;
2340 auto_scroll = false;
2341 }
2342 }
2343
2344 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2345 if !add {
2346 s.clear_disjoint();
2347 } else if click_count > 1 {
2348 s.delete(newest_selection.id)
2349 }
2350
2351 s.set_pending_anchor_range(start..end, mode);
2352 });
2353 }
2354
2355 fn begin_columnar_selection(
2356 &mut self,
2357 position: DisplayPoint,
2358 goal_column: u32,
2359 cx: &mut ViewContext<Self>,
2360 ) {
2361 if !self.focus_handle.is_focused(cx) {
2362 cx.focus(&self.focus_handle);
2363 }
2364
2365 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2366 let tail = self.selections.newest::<Point>(cx).tail();
2367 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2368
2369 self.select_columns(
2370 tail.to_display_point(&display_map),
2371 position,
2372 goal_column,
2373 &display_map,
2374 cx,
2375 );
2376 }
2377
2378 fn update_selection(
2379 &mut self,
2380 position: DisplayPoint,
2381 goal_column: u32,
2382 scroll_delta: gpui::Point<f32>,
2383 cx: &mut ViewContext<Self>,
2384 ) {
2385 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2386
2387 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2388 let tail = tail.to_display_point(&display_map);
2389 self.select_columns(tail, position, goal_column, &display_map, cx);
2390 } else if let Some(mut pending) = self.selections.pending_anchor() {
2391 let buffer = self.buffer.read(cx).snapshot(cx);
2392 let head;
2393 let tail;
2394 let mode = self.selections.pending_mode().unwrap();
2395 match &mode {
2396 SelectMode::Character => {
2397 head = position.to_point(&display_map);
2398 tail = pending.tail().to_point(&buffer);
2399 }
2400 SelectMode::Word(original_range) => {
2401 let original_display_range = original_range.start.to_display_point(&display_map)
2402 ..original_range.end.to_display_point(&display_map);
2403 let original_buffer_range = original_display_range.start.to_point(&display_map)
2404 ..original_display_range.end.to_point(&display_map);
2405 if movement::is_inside_word(&display_map, position)
2406 || original_display_range.contains(&position)
2407 {
2408 let word_range = movement::surrounding_word(&display_map, position);
2409 if word_range.start < original_display_range.start {
2410 head = word_range.start.to_point(&display_map);
2411 } else {
2412 head = word_range.end.to_point(&display_map);
2413 }
2414 } else {
2415 head = position.to_point(&display_map);
2416 }
2417
2418 if head <= original_buffer_range.start {
2419 tail = original_buffer_range.end;
2420 } else {
2421 tail = original_buffer_range.start;
2422 }
2423 }
2424 SelectMode::Line(original_range) => {
2425 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2426
2427 let position = display_map
2428 .clip_point(position, Bias::Left)
2429 .to_point(&display_map);
2430 let line_start = display_map.prev_line_boundary(position).0;
2431 let next_line_start = buffer.clip_point(
2432 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2433 Bias::Left,
2434 );
2435
2436 if line_start < original_range.start {
2437 head = line_start
2438 } else {
2439 head = next_line_start
2440 }
2441
2442 if head <= original_range.start {
2443 tail = original_range.end;
2444 } else {
2445 tail = original_range.start;
2446 }
2447 }
2448 SelectMode::All => {
2449 return;
2450 }
2451 };
2452
2453 if head < tail {
2454 pending.start = buffer.anchor_before(head);
2455 pending.end = buffer.anchor_before(tail);
2456 pending.reversed = true;
2457 } else {
2458 pending.start = buffer.anchor_before(tail);
2459 pending.end = buffer.anchor_before(head);
2460 pending.reversed = false;
2461 }
2462
2463 self.change_selections(None, cx, |s| {
2464 s.set_pending(pending, mode);
2465 });
2466 } else {
2467 log::error!("update_selection dispatched with no pending selection");
2468 return;
2469 }
2470
2471 self.apply_scroll_delta(scroll_delta, cx);
2472 cx.notify();
2473 }
2474
2475 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2476 self.columnar_selection_tail.take();
2477 if self.selections.pending_anchor().is_some() {
2478 let selections = self.selections.all::<usize>(cx);
2479 self.change_selections(None, cx, |s| {
2480 s.select(selections);
2481 s.clear_pending();
2482 });
2483 }
2484 }
2485
2486 fn select_columns(
2487 &mut self,
2488 tail: DisplayPoint,
2489 head: DisplayPoint,
2490 goal_column: u32,
2491 display_map: &DisplaySnapshot,
2492 cx: &mut ViewContext<Self>,
2493 ) {
2494 let start_row = cmp::min(tail.row(), head.row());
2495 let end_row = cmp::max(tail.row(), head.row());
2496 let start_column = cmp::min(tail.column(), goal_column);
2497 let end_column = cmp::max(tail.column(), goal_column);
2498 let reversed = start_column < tail.column();
2499
2500 let selection_ranges = (start_row..=end_row)
2501 .filter_map(|row| {
2502 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2503 let start = display_map
2504 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2505 .to_point(display_map);
2506 let end = display_map
2507 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2508 .to_point(display_map);
2509 if reversed {
2510 Some(end..start)
2511 } else {
2512 Some(start..end)
2513 }
2514 } else {
2515 None
2516 }
2517 })
2518 .collect::<Vec<_>>();
2519
2520 self.change_selections(None, cx, |s| {
2521 s.select_ranges(selection_ranges);
2522 });
2523 cx.notify();
2524 }
2525
2526 pub fn has_pending_nonempty_selection(&self) -> bool {
2527 let pending_nonempty_selection = match self.selections.pending_anchor() {
2528 Some(Selection { start, end, .. }) => start != end,
2529 None => false,
2530 };
2531 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2532 }
2533
2534 pub fn has_pending_selection(&self) -> bool {
2535 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2536 }
2537
2538 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2539 self.clear_expanded_diff_hunks(cx);
2540 if self.dismiss_menus_and_popups(cx) {
2541 return;
2542 }
2543
2544 if self.mode == EditorMode::Full {
2545 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2546 return;
2547 }
2548 }
2549
2550 cx.propagate();
2551 }
2552
2553 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2554 if self.take_rename(false, cx).is_some() {
2555 return true;
2556 }
2557
2558 if hide_hover(self, cx) {
2559 return true;
2560 }
2561
2562 if self.hide_context_menu(cx).is_some() {
2563 return true;
2564 }
2565
2566 if self.discard_inline_completion(cx) {
2567 return true;
2568 }
2569
2570 if self.snippet_stack.pop().is_some() {
2571 return true;
2572 }
2573
2574 if self.mode == EditorMode::Full {
2575 if self.active_diagnostics.is_some() {
2576 self.dismiss_diagnostics(cx);
2577 return true;
2578 }
2579 }
2580
2581 false
2582 }
2583
2584 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2585 let text: Arc<str> = text.into();
2586
2587 if self.read_only(cx) {
2588 return;
2589 }
2590
2591 let selections = self.selections.all_adjusted(cx);
2592 let mut brace_inserted = false;
2593 let mut edits = Vec::new();
2594 let mut new_selections = Vec::with_capacity(selections.len());
2595 let mut new_autoclose_regions = Vec::new();
2596 let snapshot = self.buffer.read(cx).read(cx);
2597
2598 for (selection, autoclose_region) in
2599 self.selections_with_autoclose_regions(selections, &snapshot)
2600 {
2601 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2602 // Determine if the inserted text matches the opening or closing
2603 // bracket of any of this language's bracket pairs.
2604 let mut bracket_pair = None;
2605 let mut is_bracket_pair_start = false;
2606 let mut is_bracket_pair_end = false;
2607 if !text.is_empty() {
2608 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2609 // and they are removing the character that triggered IME popup.
2610 for (pair, enabled) in scope.brackets() {
2611 if !pair.close {
2612 continue;
2613 }
2614
2615 if enabled && pair.start.ends_with(text.as_ref()) {
2616 bracket_pair = Some(pair.clone());
2617 is_bracket_pair_start = true;
2618 break;
2619 }
2620 if pair.end.as_str() == text.as_ref() {
2621 bracket_pair = Some(pair.clone());
2622 is_bracket_pair_end = true;
2623 break;
2624 }
2625 }
2626 }
2627
2628 if let Some(bracket_pair) = bracket_pair {
2629 if selection.is_empty() {
2630 if is_bracket_pair_start {
2631 let prefix_len = bracket_pair.start.len() - text.len();
2632
2633 // If the inserted text is a suffix of an opening bracket and the
2634 // selection is preceded by the rest of the opening bracket, then
2635 // insert the closing bracket.
2636 let following_text_allows_autoclose = snapshot
2637 .chars_at(selection.start)
2638 .next()
2639 .map_or(true, |c| scope.should_autoclose_before(c));
2640 let preceding_text_matches_prefix = prefix_len == 0
2641 || (selection.start.column >= (prefix_len as u32)
2642 && snapshot.contains_str_at(
2643 Point::new(
2644 selection.start.row,
2645 selection.start.column - (prefix_len as u32),
2646 ),
2647 &bracket_pair.start[..prefix_len],
2648 ));
2649 let autoclose = self.use_autoclose
2650 && snapshot.settings_at(selection.start, cx).use_autoclose;
2651 if autoclose
2652 && following_text_allows_autoclose
2653 && preceding_text_matches_prefix
2654 {
2655 let anchor = snapshot.anchor_before(selection.end);
2656 new_selections.push((selection.map(|_| anchor), text.len()));
2657 new_autoclose_regions.push((
2658 anchor,
2659 text.len(),
2660 selection.id,
2661 bracket_pair.clone(),
2662 ));
2663 edits.push((
2664 selection.range(),
2665 format!("{}{}", text, bracket_pair.end).into(),
2666 ));
2667 brace_inserted = true;
2668 continue;
2669 }
2670 }
2671
2672 if let Some(region) = autoclose_region {
2673 // If the selection is followed by an auto-inserted closing bracket,
2674 // then don't insert that closing bracket again; just move the selection
2675 // past the closing bracket.
2676 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2677 && text.as_ref() == region.pair.end.as_str();
2678 if should_skip {
2679 let anchor = snapshot.anchor_after(selection.end);
2680 new_selections
2681 .push((selection.map(|_| anchor), region.pair.end.len()));
2682 continue;
2683 }
2684 }
2685
2686 let always_treat_brackets_as_autoclosed = snapshot
2687 .settings_at(selection.start, cx)
2688 .always_treat_brackets_as_autoclosed;
2689 if always_treat_brackets_as_autoclosed
2690 && is_bracket_pair_end
2691 && snapshot.contains_str_at(selection.end, text.as_ref())
2692 {
2693 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2694 // and the inserted text is a closing bracket and the selection is followed
2695 // by the closing bracket then move the selection past the closing bracket.
2696 let anchor = snapshot.anchor_after(selection.end);
2697 new_selections.push((selection.map(|_| anchor), text.len()));
2698 continue;
2699 }
2700 }
2701 // If an opening bracket is 1 character long and is typed while
2702 // text is selected, then surround that text with the bracket pair.
2703 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2704 edits.push((selection.start..selection.start, text.clone()));
2705 edits.push((
2706 selection.end..selection.end,
2707 bracket_pair.end.as_str().into(),
2708 ));
2709 brace_inserted = true;
2710 new_selections.push((
2711 Selection {
2712 id: selection.id,
2713 start: snapshot.anchor_after(selection.start),
2714 end: snapshot.anchor_before(selection.end),
2715 reversed: selection.reversed,
2716 goal: selection.goal,
2717 },
2718 0,
2719 ));
2720 continue;
2721 }
2722 }
2723 }
2724
2725 if self.auto_replace_emoji_shortcode
2726 && selection.is_empty()
2727 && text.as_ref().ends_with(':')
2728 {
2729 if let Some(possible_emoji_short_code) =
2730 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2731 {
2732 if !possible_emoji_short_code.is_empty() {
2733 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2734 let emoji_shortcode_start = Point::new(
2735 selection.start.row,
2736 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2737 );
2738
2739 // Remove shortcode from buffer
2740 edits.push((
2741 emoji_shortcode_start..selection.start,
2742 "".to_string().into(),
2743 ));
2744 new_selections.push((
2745 Selection {
2746 id: selection.id,
2747 start: snapshot.anchor_after(emoji_shortcode_start),
2748 end: snapshot.anchor_before(selection.start),
2749 reversed: selection.reversed,
2750 goal: selection.goal,
2751 },
2752 0,
2753 ));
2754
2755 // Insert emoji
2756 let selection_start_anchor = snapshot.anchor_after(selection.start);
2757 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2758 edits.push((selection.start..selection.end, emoji.to_string().into()));
2759
2760 continue;
2761 }
2762 }
2763 }
2764 }
2765
2766 // If not handling any auto-close operation, then just replace the selected
2767 // text with the given input and move the selection to the end of the
2768 // newly inserted text.
2769 let anchor = snapshot.anchor_after(selection.end);
2770 new_selections.push((selection.map(|_| anchor), 0));
2771 edits.push((selection.start..selection.end, text.clone()));
2772 }
2773
2774 drop(snapshot);
2775 self.transact(cx, |this, cx| {
2776 this.buffer.update(cx, |buffer, cx| {
2777 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2778 });
2779
2780 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2781 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2782 let snapshot = this.buffer.read(cx).read(cx);
2783 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2784 .zip(new_selection_deltas)
2785 .map(|(selection, delta)| Selection {
2786 id: selection.id,
2787 start: selection.start + delta,
2788 end: selection.end + delta,
2789 reversed: selection.reversed,
2790 goal: SelectionGoal::None,
2791 })
2792 .collect::<Vec<_>>();
2793
2794 let mut i = 0;
2795 for (position, delta, selection_id, pair) in new_autoclose_regions {
2796 let position = position.to_offset(&snapshot) + delta;
2797 let start = snapshot.anchor_before(position);
2798 let end = snapshot.anchor_after(position);
2799 while let Some(existing_state) = this.autoclose_regions.get(i) {
2800 match existing_state.range.start.cmp(&start, &snapshot) {
2801 Ordering::Less => i += 1,
2802 Ordering::Greater => break,
2803 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2804 Ordering::Less => i += 1,
2805 Ordering::Equal => break,
2806 Ordering::Greater => break,
2807 },
2808 }
2809 }
2810 this.autoclose_regions.insert(
2811 i,
2812 AutocloseRegion {
2813 selection_id,
2814 range: start..end,
2815 pair,
2816 },
2817 );
2818 }
2819
2820 drop(snapshot);
2821 let had_active_inline_completion = this.has_active_inline_completion(cx);
2822 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2823
2824 if brace_inserted {
2825 // If we inserted a brace while composing text (i.e. typing `"` on a
2826 // Brazilian keyboard), exit the composing state because most likely
2827 // the user wanted to surround the selection.
2828 this.unmark_text(cx);
2829 } else if EditorSettings::get_global(cx).use_on_type_format {
2830 if let Some(on_type_format_task) =
2831 this.trigger_on_type_formatting(text.to_string(), cx)
2832 {
2833 on_type_format_task.detach_and_log_err(cx);
2834 }
2835 }
2836
2837 let trigger_in_words = !had_active_inline_completion;
2838 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2839 this.refresh_inline_completion(true, cx);
2840 });
2841 }
2842
2843 fn find_possible_emoji_shortcode_at_position(
2844 snapshot: &MultiBufferSnapshot,
2845 position: Point,
2846 ) -> Option<String> {
2847 let mut chars = Vec::new();
2848 let mut found_colon = false;
2849 for char in snapshot.reversed_chars_at(position).take(100) {
2850 // Found a possible emoji shortcode in the middle of the buffer
2851 if found_colon {
2852 if char.is_whitespace() {
2853 chars.reverse();
2854 return Some(chars.iter().collect());
2855 }
2856 // If the previous character is not a whitespace, we are in the middle of a word
2857 // and we only want to complete the shortcode if the word is made up of other emojis
2858 let mut containing_word = String::new();
2859 for ch in snapshot
2860 .reversed_chars_at(position)
2861 .skip(chars.len() + 1)
2862 .take(100)
2863 {
2864 if ch.is_whitespace() {
2865 break;
2866 }
2867 containing_word.push(ch);
2868 }
2869 let containing_word = containing_word.chars().rev().collect::<String>();
2870 if util::word_consists_of_emojis(containing_word.as_str()) {
2871 chars.reverse();
2872 return Some(chars.iter().collect());
2873 }
2874 }
2875
2876 if char.is_whitespace() || !char.is_ascii() {
2877 return None;
2878 }
2879 if char == ':' {
2880 found_colon = true;
2881 } else {
2882 chars.push(char);
2883 }
2884 }
2885 // Found a possible emoji shortcode at the beginning of the buffer
2886 chars.reverse();
2887 Some(chars.iter().collect())
2888 }
2889
2890 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2891 self.transact(cx, |this, cx| {
2892 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2893 let selections = this.selections.all::<usize>(cx);
2894 let multi_buffer = this.buffer.read(cx);
2895 let buffer = multi_buffer.snapshot(cx);
2896 selections
2897 .iter()
2898 .map(|selection| {
2899 let start_point = selection.start.to_point(&buffer);
2900 let mut indent = buffer.indent_size_for_line(start_point.row);
2901 indent.len = cmp::min(indent.len, start_point.column);
2902 let start = selection.start;
2903 let end = selection.end;
2904 let selection_is_empty = start == end;
2905 let language_scope = buffer.language_scope_at(start);
2906 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2907 &language_scope
2908 {
2909 let leading_whitespace_len = buffer
2910 .reversed_chars_at(start)
2911 .take_while(|c| c.is_whitespace() && *c != '\n')
2912 .map(|c| c.len_utf8())
2913 .sum::<usize>();
2914
2915 let trailing_whitespace_len = buffer
2916 .chars_at(end)
2917 .take_while(|c| c.is_whitespace() && *c != '\n')
2918 .map(|c| c.len_utf8())
2919 .sum::<usize>();
2920
2921 let insert_extra_newline =
2922 language.brackets().any(|(pair, enabled)| {
2923 let pair_start = pair.start.trim_end();
2924 let pair_end = pair.end.trim_start();
2925
2926 enabled
2927 && pair.newline
2928 && buffer.contains_str_at(
2929 end + trailing_whitespace_len,
2930 pair_end,
2931 )
2932 && buffer.contains_str_at(
2933 (start - leading_whitespace_len)
2934 .saturating_sub(pair_start.len()),
2935 pair_start,
2936 )
2937 });
2938
2939 // Comment extension on newline is allowed only for cursor selections
2940 let comment_delimiter = maybe!({
2941 if !selection_is_empty {
2942 return None;
2943 }
2944
2945 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2946 return None;
2947 }
2948
2949 let delimiters = language.line_comment_prefixes();
2950 let max_len_of_delimiter =
2951 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2952 let (snapshot, range) =
2953 buffer.buffer_line_for_row(start_point.row)?;
2954
2955 let mut index_of_first_non_whitespace = 0;
2956 let comment_candidate = snapshot
2957 .chars_for_range(range)
2958 .skip_while(|c| {
2959 let should_skip = c.is_whitespace();
2960 if should_skip {
2961 index_of_first_non_whitespace += 1;
2962 }
2963 should_skip
2964 })
2965 .take(max_len_of_delimiter)
2966 .collect::<String>();
2967 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2968 comment_candidate.starts_with(comment_prefix.as_ref())
2969 })?;
2970 let cursor_is_placed_after_comment_marker =
2971 index_of_first_non_whitespace + comment_prefix.len()
2972 <= start_point.column as usize;
2973 if cursor_is_placed_after_comment_marker {
2974 Some(comment_prefix.clone())
2975 } else {
2976 None
2977 }
2978 });
2979 (comment_delimiter, insert_extra_newline)
2980 } else {
2981 (None, false)
2982 };
2983
2984 let capacity_for_delimiter = comment_delimiter
2985 .as_deref()
2986 .map(str::len)
2987 .unwrap_or_default();
2988 let mut new_text =
2989 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2990 new_text.push_str("\n");
2991 new_text.extend(indent.chars());
2992 if let Some(delimiter) = &comment_delimiter {
2993 new_text.push_str(&delimiter);
2994 }
2995 if insert_extra_newline {
2996 new_text = new_text.repeat(2);
2997 }
2998
2999 let anchor = buffer.anchor_after(end);
3000 let new_selection = selection.map(|_| anchor);
3001 (
3002 (start..end, new_text),
3003 (insert_extra_newline, new_selection),
3004 )
3005 })
3006 .unzip()
3007 };
3008
3009 this.edit_with_autoindent(edits, cx);
3010 let buffer = this.buffer.read(cx).snapshot(cx);
3011 let new_selections = selection_fixup_info
3012 .into_iter()
3013 .map(|(extra_newline_inserted, new_selection)| {
3014 let mut cursor = new_selection.end.to_point(&buffer);
3015 if extra_newline_inserted {
3016 cursor.row -= 1;
3017 cursor.column = buffer.line_len(cursor.row);
3018 }
3019 new_selection.map(|_| cursor)
3020 })
3021 .collect();
3022
3023 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3024 this.refresh_inline_completion(true, cx);
3025 });
3026 }
3027
3028 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3029 let buffer = self.buffer.read(cx);
3030 let snapshot = buffer.snapshot(cx);
3031
3032 let mut edits = Vec::new();
3033 let mut rows = Vec::new();
3034
3035 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3036 let cursor = selection.head();
3037 let row = cursor.row;
3038
3039 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3040
3041 let newline = "\n".to_string();
3042 edits.push((start_of_line..start_of_line, newline));
3043
3044 rows.push(row + rows_inserted as u32);
3045 }
3046
3047 self.transact(cx, |editor, cx| {
3048 editor.edit(edits, cx);
3049
3050 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3051 let mut index = 0;
3052 s.move_cursors_with(|map, _, _| {
3053 let row = rows[index];
3054 index += 1;
3055
3056 let point = Point::new(row, 0);
3057 let boundary = map.next_line_boundary(point).1;
3058 let clipped = map.clip_point(boundary, Bias::Left);
3059
3060 (clipped, SelectionGoal::None)
3061 });
3062 });
3063
3064 let mut indent_edits = Vec::new();
3065 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3066 for row in rows {
3067 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3068 for (row, indent) in indents {
3069 if indent.len == 0 {
3070 continue;
3071 }
3072
3073 let text = match indent.kind {
3074 IndentKind::Space => " ".repeat(indent.len as usize),
3075 IndentKind::Tab => "\t".repeat(indent.len as usize),
3076 };
3077 let point = Point::new(row, 0);
3078 indent_edits.push((point..point, text));
3079 }
3080 }
3081 editor.edit(indent_edits, cx);
3082 });
3083 }
3084
3085 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3086 let buffer = self.buffer.read(cx);
3087 let snapshot = buffer.snapshot(cx);
3088
3089 let mut edits = Vec::new();
3090 let mut rows = Vec::new();
3091 let mut rows_inserted = 0;
3092
3093 for selection in self.selections.all_adjusted(cx) {
3094 let cursor = selection.head();
3095 let row = cursor.row;
3096
3097 let point = Point::new(row + 1, 0);
3098 let start_of_line = snapshot.clip_point(point, Bias::Left);
3099
3100 let newline = "\n".to_string();
3101 edits.push((start_of_line..start_of_line, newline));
3102
3103 rows_inserted += 1;
3104 rows.push(row + rows_inserted);
3105 }
3106
3107 self.transact(cx, |editor, cx| {
3108 editor.edit(edits, cx);
3109
3110 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3111 let mut index = 0;
3112 s.move_cursors_with(|map, _, _| {
3113 let row = rows[index];
3114 index += 1;
3115
3116 let point = Point::new(row, 0);
3117 let boundary = map.next_line_boundary(point).1;
3118 let clipped = map.clip_point(boundary, Bias::Left);
3119
3120 (clipped, SelectionGoal::None)
3121 });
3122 });
3123
3124 let mut indent_edits = Vec::new();
3125 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3126 for row in rows {
3127 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3128 for (row, indent) in indents {
3129 if indent.len == 0 {
3130 continue;
3131 }
3132
3133 let text = match indent.kind {
3134 IndentKind::Space => " ".repeat(indent.len as usize),
3135 IndentKind::Tab => "\t".repeat(indent.len as usize),
3136 };
3137 let point = Point::new(row, 0);
3138 indent_edits.push((point..point, text));
3139 }
3140 }
3141 editor.edit(indent_edits, cx);
3142 });
3143 }
3144
3145 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3146 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3147 original_indent_columns: Vec::new(),
3148 });
3149 self.insert_with_autoindent_mode(text, autoindent, cx);
3150 }
3151
3152 fn insert_with_autoindent_mode(
3153 &mut self,
3154 text: &str,
3155 autoindent_mode: Option<AutoindentMode>,
3156 cx: &mut ViewContext<Self>,
3157 ) {
3158 if self.read_only(cx) {
3159 return;
3160 }
3161
3162 let text: Arc<str> = text.into();
3163 self.transact(cx, |this, cx| {
3164 let old_selections = this.selections.all_adjusted(cx);
3165 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3166 let anchors = {
3167 let snapshot = buffer.read(cx);
3168 old_selections
3169 .iter()
3170 .map(|s| {
3171 let anchor = snapshot.anchor_after(s.head());
3172 s.map(|_| anchor)
3173 })
3174 .collect::<Vec<_>>()
3175 };
3176 buffer.edit(
3177 old_selections
3178 .iter()
3179 .map(|s| (s.start..s.end, text.clone())),
3180 autoindent_mode,
3181 cx,
3182 );
3183 anchors
3184 });
3185
3186 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3187 s.select_anchors(selection_anchors);
3188 })
3189 });
3190 }
3191
3192 fn trigger_completion_on_input(
3193 &mut self,
3194 text: &str,
3195 trigger_in_words: bool,
3196 cx: &mut ViewContext<Self>,
3197 ) {
3198 if !EditorSettings::get_global(cx).show_completions_on_input {
3199 return;
3200 }
3201
3202 let selection = self.selections.newest_anchor();
3203 if self
3204 .buffer
3205 .read(cx)
3206 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3207 {
3208 self.show_completions(&ShowCompletions, cx);
3209 } else {
3210 self.hide_context_menu(cx);
3211 }
3212 }
3213
3214 /// If any empty selections is touching the start of its innermost containing autoclose
3215 /// region, expand it to select the brackets.
3216 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3217 let selections = self.selections.all::<usize>(cx);
3218 let buffer = self.buffer.read(cx).read(cx);
3219 let new_selections = self
3220 .selections_with_autoclose_regions(selections, &buffer)
3221 .map(|(mut selection, region)| {
3222 if !selection.is_empty() {
3223 return selection;
3224 }
3225
3226 if let Some(region) = region {
3227 let mut range = region.range.to_offset(&buffer);
3228 if selection.start == range.start && range.start >= region.pair.start.len() {
3229 range.start -= region.pair.start.len();
3230 if buffer.contains_str_at(range.start, ®ion.pair.start)
3231 && buffer.contains_str_at(range.end, ®ion.pair.end)
3232 {
3233 range.end += region.pair.end.len();
3234 selection.start = range.start;
3235 selection.end = range.end;
3236
3237 return selection;
3238 }
3239 }
3240 }
3241
3242 let always_treat_brackets_as_autoclosed = buffer
3243 .settings_at(selection.start, cx)
3244 .always_treat_brackets_as_autoclosed;
3245
3246 if !always_treat_brackets_as_autoclosed {
3247 return selection;
3248 }
3249
3250 if let Some(scope) = buffer.language_scope_at(selection.start) {
3251 for (pair, enabled) in scope.brackets() {
3252 if !enabled || !pair.close {
3253 continue;
3254 }
3255
3256 if buffer.contains_str_at(selection.start, &pair.end) {
3257 let pair_start_len = pair.start.len();
3258 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3259 {
3260 selection.start -= pair_start_len;
3261 selection.end += pair.end.len();
3262
3263 return selection;
3264 }
3265 }
3266 }
3267 }
3268
3269 selection
3270 })
3271 .collect();
3272
3273 drop(buffer);
3274 self.change_selections(None, cx, |selections| selections.select(new_selections));
3275 }
3276
3277 /// Iterate the given selections, and for each one, find the smallest surrounding
3278 /// autoclose region. This uses the ordering of the selections and the autoclose
3279 /// regions to avoid repeated comparisons.
3280 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3281 &'a self,
3282 selections: impl IntoIterator<Item = Selection<D>>,
3283 buffer: &'a MultiBufferSnapshot,
3284 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3285 let mut i = 0;
3286 let mut regions = self.autoclose_regions.as_slice();
3287 selections.into_iter().map(move |selection| {
3288 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3289
3290 let mut enclosing = None;
3291 while let Some(pair_state) = regions.get(i) {
3292 if pair_state.range.end.to_offset(buffer) < range.start {
3293 regions = ®ions[i + 1..];
3294 i = 0;
3295 } else if pair_state.range.start.to_offset(buffer) > range.end {
3296 break;
3297 } else {
3298 if pair_state.selection_id == selection.id {
3299 enclosing = Some(pair_state);
3300 }
3301 i += 1;
3302 }
3303 }
3304
3305 (selection.clone(), enclosing)
3306 })
3307 }
3308
3309 /// Remove any autoclose regions that no longer contain their selection.
3310 fn invalidate_autoclose_regions(
3311 &mut self,
3312 mut selections: &[Selection<Anchor>],
3313 buffer: &MultiBufferSnapshot,
3314 ) {
3315 self.autoclose_regions.retain(|state| {
3316 let mut i = 0;
3317 while let Some(selection) = selections.get(i) {
3318 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3319 selections = &selections[1..];
3320 continue;
3321 }
3322 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3323 break;
3324 }
3325 if selection.id == state.selection_id {
3326 return true;
3327 } else {
3328 i += 1;
3329 }
3330 }
3331 false
3332 });
3333 }
3334
3335 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3336 let offset = position.to_offset(buffer);
3337 let (word_range, kind) = buffer.surrounding_word(offset);
3338 if offset > word_range.start && kind == Some(CharKind::Word) {
3339 Some(
3340 buffer
3341 .text_for_range(word_range.start..offset)
3342 .collect::<String>(),
3343 )
3344 } else {
3345 None
3346 }
3347 }
3348
3349 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3350 self.refresh_inlay_hints(
3351 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3352 cx,
3353 );
3354 }
3355
3356 pub fn inlay_hints_enabled(&self) -> bool {
3357 self.inlay_hint_cache.enabled
3358 }
3359
3360 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3361 if self.project.is_none() || self.mode != EditorMode::Full {
3362 return;
3363 }
3364
3365 let reason_description = reason.description();
3366 let ignore_debounce = matches!(
3367 reason,
3368 InlayHintRefreshReason::SettingsChange(_)
3369 | InlayHintRefreshReason::Toggle(_)
3370 | InlayHintRefreshReason::ExcerptsRemoved(_)
3371 );
3372 let (invalidate_cache, required_languages) = match reason {
3373 InlayHintRefreshReason::Toggle(enabled) => {
3374 self.inlay_hint_cache.enabled = enabled;
3375 if enabled {
3376 (InvalidationStrategy::RefreshRequested, None)
3377 } else {
3378 self.inlay_hint_cache.clear();
3379 self.splice_inlays(
3380 self.visible_inlay_hints(cx)
3381 .iter()
3382 .map(|inlay| inlay.id)
3383 .collect(),
3384 Vec::new(),
3385 cx,
3386 );
3387 return;
3388 }
3389 }
3390 InlayHintRefreshReason::SettingsChange(new_settings) => {
3391 match self.inlay_hint_cache.update_settings(
3392 &self.buffer,
3393 new_settings,
3394 self.visible_inlay_hints(cx),
3395 cx,
3396 ) {
3397 ControlFlow::Break(Some(InlaySplice {
3398 to_remove,
3399 to_insert,
3400 })) => {
3401 self.splice_inlays(to_remove, to_insert, cx);
3402 return;
3403 }
3404 ControlFlow::Break(None) => return,
3405 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3406 }
3407 }
3408 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3409 if let Some(InlaySplice {
3410 to_remove,
3411 to_insert,
3412 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3413 {
3414 self.splice_inlays(to_remove, to_insert, cx);
3415 }
3416 return;
3417 }
3418 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3419 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3420 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3421 }
3422 InlayHintRefreshReason::RefreshRequested => {
3423 (InvalidationStrategy::RefreshRequested, None)
3424 }
3425 };
3426
3427 if let Some(InlaySplice {
3428 to_remove,
3429 to_insert,
3430 }) = self.inlay_hint_cache.spawn_hint_refresh(
3431 reason_description,
3432 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3433 invalidate_cache,
3434 ignore_debounce,
3435 cx,
3436 ) {
3437 self.splice_inlays(to_remove, to_insert, cx);
3438 }
3439 }
3440
3441 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3442 self.display_map
3443 .read(cx)
3444 .current_inlays()
3445 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3446 .cloned()
3447 .collect()
3448 }
3449
3450 pub fn excerpts_for_inlay_hints_query(
3451 &self,
3452 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3453 cx: &mut ViewContext<Editor>,
3454 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3455 let Some(project) = self.project.as_ref() else {
3456 return HashMap::default();
3457 };
3458 let project = project.read(cx);
3459 let multi_buffer = self.buffer().read(cx);
3460 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3461 let multi_buffer_visible_start = self
3462 .scroll_manager
3463 .anchor()
3464 .anchor
3465 .to_point(&multi_buffer_snapshot);
3466 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3467 multi_buffer_visible_start
3468 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3469 Bias::Left,
3470 );
3471 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3472 multi_buffer
3473 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3474 .into_iter()
3475 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3476 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3477 let buffer = buffer_handle.read(cx);
3478 let buffer_file = project::File::from_dyn(buffer.file())?;
3479 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3480 let worktree_entry = buffer_worktree
3481 .read(cx)
3482 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3483 if worktree_entry.is_ignored {
3484 return None;
3485 }
3486
3487 let language = buffer.language()?;
3488 if let Some(restrict_to_languages) = restrict_to_languages {
3489 if !restrict_to_languages.contains(language) {
3490 return None;
3491 }
3492 }
3493 Some((
3494 excerpt_id,
3495 (
3496 buffer_handle,
3497 buffer.version().clone(),
3498 excerpt_visible_range,
3499 ),
3500 ))
3501 })
3502 .collect()
3503 }
3504
3505 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3506 TextLayoutDetails {
3507 text_system: cx.text_system().clone(),
3508 editor_style: self.style.clone().unwrap(),
3509 rem_size: cx.rem_size(),
3510 scroll_anchor: self.scroll_manager.anchor(),
3511 visible_rows: self.visible_line_count(),
3512 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3513 }
3514 }
3515
3516 fn splice_inlays(
3517 &self,
3518 to_remove: Vec<InlayId>,
3519 to_insert: Vec<Inlay>,
3520 cx: &mut ViewContext<Self>,
3521 ) {
3522 self.display_map.update(cx, |display_map, cx| {
3523 display_map.splice_inlays(to_remove, to_insert, cx);
3524 });
3525 cx.notify();
3526 }
3527
3528 fn trigger_on_type_formatting(
3529 &self,
3530 input: String,
3531 cx: &mut ViewContext<Self>,
3532 ) -> Option<Task<Result<()>>> {
3533 if input.len() != 1 {
3534 return None;
3535 }
3536
3537 let project = self.project.as_ref()?;
3538 let position = self.selections.newest_anchor().head();
3539 let (buffer, buffer_position) = self
3540 .buffer
3541 .read(cx)
3542 .text_anchor_for_position(position, cx)?;
3543
3544 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3545 // hence we do LSP request & edit on host side only — add formats to host's history.
3546 let push_to_lsp_host_history = true;
3547 // If this is not the host, append its history with new edits.
3548 let push_to_client_history = project.read(cx).is_remote();
3549
3550 let on_type_formatting = project.update(cx, |project, cx| {
3551 project.on_type_format(
3552 buffer.clone(),
3553 buffer_position,
3554 input,
3555 push_to_lsp_host_history,
3556 cx,
3557 )
3558 });
3559 Some(cx.spawn(|editor, mut cx| async move {
3560 if let Some(transaction) = on_type_formatting.await? {
3561 if push_to_client_history {
3562 buffer
3563 .update(&mut cx, |buffer, _| {
3564 buffer.push_transaction(transaction, Instant::now());
3565 })
3566 .ok();
3567 }
3568 editor.update(&mut cx, |editor, cx| {
3569 editor.refresh_document_highlights(cx);
3570 })?;
3571 }
3572 Ok(())
3573 }))
3574 }
3575
3576 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3577 if self.pending_rename.is_some() {
3578 return;
3579 }
3580
3581 let Some(provider) = self.completion_provider.as_ref() else {
3582 return;
3583 };
3584
3585 let position = self.selections.newest_anchor().head();
3586 let (buffer, buffer_position) =
3587 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3588 output
3589 } else {
3590 return;
3591 };
3592
3593 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3594 let completions = provider.completions(&buffer, buffer_position, cx);
3595
3596 let id = post_inc(&mut self.next_completion_id);
3597 let task = cx.spawn(|this, mut cx| {
3598 async move {
3599 let completions = completions.await.log_err();
3600 let menu = if let Some(completions) = completions {
3601 let mut menu = CompletionsMenu {
3602 id,
3603 initial_position: position,
3604 match_candidates: completions
3605 .iter()
3606 .enumerate()
3607 .map(|(id, completion)| {
3608 StringMatchCandidate::new(
3609 id,
3610 completion.label.text[completion.label.filter_range.clone()]
3611 .into(),
3612 )
3613 })
3614 .collect(),
3615 buffer: buffer.clone(),
3616 completions: Arc::new(RwLock::new(completions.into())),
3617 matches: Vec::new().into(),
3618 selected_item: 0,
3619 scroll_handle: UniformListScrollHandle::new(),
3620 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3621 DebouncedDelay::new(),
3622 )),
3623 };
3624 menu.filter(query.as_deref(), cx.background_executor().clone())
3625 .await;
3626
3627 if menu.matches.is_empty() {
3628 None
3629 } else {
3630 this.update(&mut cx, |editor, cx| {
3631 let completions = menu.completions.clone();
3632 let matches = menu.matches.clone();
3633
3634 let delay_ms = EditorSettings::get_global(cx)
3635 .completion_documentation_secondary_query_debounce;
3636 let delay = Duration::from_millis(delay_ms);
3637
3638 editor
3639 .completion_documentation_pre_resolve_debounce
3640 .fire_new(delay, cx, |editor, cx| {
3641 CompletionsMenu::pre_resolve_completion_documentation(
3642 buffer,
3643 completions,
3644 matches,
3645 editor,
3646 cx,
3647 )
3648 });
3649 })
3650 .ok();
3651 Some(menu)
3652 }
3653 } else {
3654 None
3655 };
3656
3657 this.update(&mut cx, |this, cx| {
3658 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3659
3660 let mut context_menu = this.context_menu.write();
3661 match context_menu.as_ref() {
3662 None => {}
3663
3664 Some(ContextMenu::Completions(prev_menu)) => {
3665 if prev_menu.id > id {
3666 return;
3667 }
3668 }
3669
3670 _ => return,
3671 }
3672
3673 if this.focus_handle.is_focused(cx) && menu.is_some() {
3674 let menu = menu.unwrap();
3675 *context_menu = Some(ContextMenu::Completions(menu));
3676 drop(context_menu);
3677 this.discard_inline_completion(cx);
3678 cx.notify();
3679 } else if this.completion_tasks.len() <= 1 {
3680 // If there are no more completion tasks and the last menu was
3681 // empty, we should hide it. If it was already hidden, we should
3682 // also show the copilot completion when available.
3683 drop(context_menu);
3684 if this.hide_context_menu(cx).is_none() {
3685 this.update_visible_inline_completion(cx);
3686 }
3687 }
3688 })?;
3689
3690 Ok::<_, anyhow::Error>(())
3691 }
3692 .log_err()
3693 });
3694
3695 self.completion_tasks.push((id, task));
3696 }
3697
3698 pub fn confirm_completion(
3699 &mut self,
3700 action: &ConfirmCompletion,
3701 cx: &mut ViewContext<Self>,
3702 ) -> Option<Task<Result<()>>> {
3703 use language::ToOffset as _;
3704
3705 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3706 menu
3707 } else {
3708 return None;
3709 };
3710
3711 let mat = completions_menu
3712 .matches
3713 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3714 let buffer_handle = completions_menu.buffer;
3715 let completions = completions_menu.completions.read();
3716 let completion = completions.get(mat.candidate_id)?;
3717 cx.stop_propagation();
3718
3719 let snippet;
3720 let text;
3721 if completion.is_snippet() {
3722 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3723 text = snippet.as_ref().unwrap().text.clone();
3724 } else {
3725 snippet = None;
3726 text = completion.new_text.clone();
3727 };
3728 let selections = self.selections.all::<usize>(cx);
3729 let buffer = buffer_handle.read(cx);
3730 let old_range = completion.old_range.to_offset(buffer);
3731 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3732
3733 let newest_selection = self.selections.newest_anchor();
3734 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3735 return None;
3736 }
3737
3738 let lookbehind = newest_selection
3739 .start
3740 .text_anchor
3741 .to_offset(buffer)
3742 .saturating_sub(old_range.start);
3743 let lookahead = old_range
3744 .end
3745 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3746 let mut common_prefix_len = old_text
3747 .bytes()
3748 .zip(text.bytes())
3749 .take_while(|(a, b)| a == b)
3750 .count();
3751
3752 let snapshot = self.buffer.read(cx).snapshot(cx);
3753 let mut range_to_replace: Option<Range<isize>> = None;
3754 let mut ranges = Vec::new();
3755 for selection in &selections {
3756 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3757 let start = selection.start.saturating_sub(lookbehind);
3758 let end = selection.end + lookahead;
3759 if selection.id == newest_selection.id {
3760 range_to_replace = Some(
3761 ((start + common_prefix_len) as isize - selection.start as isize)
3762 ..(end as isize - selection.start as isize),
3763 );
3764 }
3765 ranges.push(start + common_prefix_len..end);
3766 } else {
3767 common_prefix_len = 0;
3768 ranges.clear();
3769 ranges.extend(selections.iter().map(|s| {
3770 if s.id == newest_selection.id {
3771 range_to_replace = Some(
3772 old_range.start.to_offset_utf16(&snapshot).0 as isize
3773 - selection.start as isize
3774 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3775 - selection.start as isize,
3776 );
3777 old_range.clone()
3778 } else {
3779 s.start..s.end
3780 }
3781 }));
3782 break;
3783 }
3784 }
3785 let text = &text[common_prefix_len..];
3786
3787 cx.emit(EditorEvent::InputHandled {
3788 utf16_range_to_replace: range_to_replace,
3789 text: text.into(),
3790 });
3791
3792 self.transact(cx, |this, cx| {
3793 if let Some(mut snippet) = snippet {
3794 snippet.text = text.to_string();
3795 for tabstop in snippet.tabstops.iter_mut().flatten() {
3796 tabstop.start -= common_prefix_len as isize;
3797 tabstop.end -= common_prefix_len as isize;
3798 }
3799
3800 this.insert_snippet(&ranges, snippet, cx).log_err();
3801 } else {
3802 this.buffer.update(cx, |buffer, cx| {
3803 buffer.edit(
3804 ranges.iter().map(|range| (range.clone(), text)),
3805 this.autoindent_mode.clone(),
3806 cx,
3807 );
3808 });
3809 }
3810
3811 this.refresh_inline_completion(true, cx);
3812 });
3813
3814 let provider = self.completion_provider.as_ref()?;
3815 let apply_edits = provider.apply_additional_edits_for_completion(
3816 buffer_handle,
3817 completion.clone(),
3818 true,
3819 cx,
3820 );
3821 Some(cx.foreground_executor().spawn(async move {
3822 apply_edits.await?;
3823 Ok(())
3824 }))
3825 }
3826
3827 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3828 let mut context_menu = self.context_menu.write();
3829 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3830 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3831 // Toggle if we're selecting the same one
3832 *context_menu = None;
3833 cx.notify();
3834 return;
3835 } else {
3836 // Otherwise, clear it and start a new one
3837 *context_menu = None;
3838 cx.notify();
3839 }
3840 }
3841 drop(context_menu);
3842
3843 let deployed_from_indicator = action.deployed_from_indicator;
3844 let mut task = self.code_actions_task.take();
3845 let action = action.clone();
3846 cx.spawn(|this, mut cx| async move {
3847 while let Some(prev_task) = task {
3848 prev_task.await;
3849 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3850 }
3851
3852 let spawned_test_task = this.update(&mut cx, |this, cx| {
3853 if this.focus_handle.is_focused(cx) {
3854 let buffer_row = action
3855 .deployed_from_indicator
3856 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head().row);
3857 let tasks = this.tasks.get(&buffer_row).map(|t| Arc::new(t.to_owned()));
3858 let (location, code_actions) = this
3859 .available_code_actions
3860 .clone()
3861 .and_then(|(location, code_actions)| {
3862 let snapshot = location.buffer.read(cx).snapshot();
3863 let point_range = location.range.to_point(&snapshot);
3864 let point_range = point_range.start.row..=point_range.end.row;
3865 if point_range.contains(&buffer_row) {
3866 Some((location, code_actions))
3867 } else {
3868 None
3869 }
3870 })
3871 .unzip();
3872 if tasks.is_none() && code_actions.is_none() {
3873 return None;
3874 }
3875
3876 let buffer = location.map(|location| location.buffer).or_else(|| {
3877 let snapshot = this.snapshot(cx);
3878 let (buffer_snapshot, _) =
3879 snapshot.buffer_snapshot.buffer_line_for_row(buffer_row)?;
3880 let buffer_id = buffer_snapshot.remote_id();
3881 this.buffer().read(cx).buffer(buffer_id)
3882 });
3883 let Some(buffer) = buffer else {
3884 return None;
3885 };
3886 this.completion_tasks.clear();
3887 this.discard_inline_completion(cx);
3888 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3889 |(tasks, (workspace, _))| {
3890 let position = Point::new(buffer_row, tasks.column);
3891 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3892 let location = Location {
3893 buffer: buffer.clone(),
3894 range: range_start..range_start,
3895 };
3896 workspace
3897 .update(cx, |workspace, cx| {
3898 tasks::task_context_for_location(workspace, location, cx)
3899 })
3900 .ok()
3901 .flatten()
3902 },
3903 );
3904 let tasks = tasks
3905 .zip(task_context.as_ref())
3906 .map(|(tasks, task_context)| {
3907 Arc::new(ResolvedTasks {
3908 templates: tasks
3909 .templates
3910 .iter()
3911 .filter_map(|(kind, template)| {
3912 template
3913 .resolve_task(&kind.to_id_base(), &task_context)
3914 .map(|task| (kind.clone(), task))
3915 })
3916 .collect(),
3917 position: Point::new(buffer_row, tasks.column),
3918 })
3919 });
3920 let spawn_straight_away = tasks
3921 .as_ref()
3922 .map_or(false, |tasks| tasks.templates.len() == 1)
3923 && code_actions
3924 .as_ref()
3925 .map_or(true, |actions| actions.is_empty());
3926 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3927 buffer,
3928 actions: CodeActionContents {
3929 tasks,
3930 actions: code_actions,
3931 },
3932 selected_item: Default::default(),
3933 scroll_handle: UniformListScrollHandle::default(),
3934 deployed_from_indicator,
3935 }));
3936 if spawn_straight_away {
3937 if let Some(task) =
3938 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3939 {
3940 cx.notify();
3941 return Some(task);
3942 }
3943 }
3944 cx.notify();
3945 }
3946 Some(Task::ready(Ok(())))
3947 })?;
3948 if let Some(task) = spawned_test_task {
3949 task.await?;
3950 }
3951
3952 Ok::<_, anyhow::Error>(())
3953 })
3954 .detach_and_log_err(cx);
3955 }
3956
3957 pub fn confirm_code_action(
3958 &mut self,
3959 action: &ConfirmCodeAction,
3960 cx: &mut ViewContext<Self>,
3961 ) -> Option<Task<Result<()>>> {
3962 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3963 menu
3964 } else {
3965 return None;
3966 };
3967 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3968 let action = actions_menu.actions.get(action_ix)?;
3969 let title = action.label();
3970 let buffer = actions_menu.buffer;
3971 let workspace = self.workspace()?;
3972
3973 match action {
3974 CodeActionsItem::Task(task_source_kind, resolved_task) => {
3975 workspace.update(cx, |workspace, cx| {
3976 workspace::tasks::schedule_resolved_task(
3977 workspace,
3978 task_source_kind,
3979 resolved_task,
3980 false,
3981 cx,
3982 );
3983
3984 Some(Task::ready(Ok(())))
3985 })
3986 }
3987 CodeActionsItem::CodeAction(action) => {
3988 let apply_code_actions = workspace
3989 .read(cx)
3990 .project()
3991 .clone()
3992 .update(cx, |project, cx| {
3993 project.apply_code_action(buffer, action, true, cx)
3994 });
3995 let workspace = workspace.downgrade();
3996 Some(cx.spawn(|editor, cx| async move {
3997 let project_transaction = apply_code_actions.await?;
3998 Self::open_project_transaction(
3999 &editor,
4000 workspace,
4001 project_transaction,
4002 title,
4003 cx,
4004 )
4005 .await
4006 }))
4007 }
4008 }
4009 }
4010
4011 async fn open_project_transaction(
4012 this: &WeakView<Editor>,
4013 workspace: WeakView<Workspace>,
4014 transaction: ProjectTransaction,
4015 title: String,
4016 mut cx: AsyncWindowContext,
4017 ) -> Result<()> {
4018 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4019
4020 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4021 cx.update(|cx| {
4022 entries.sort_unstable_by_key(|(buffer, _)| {
4023 buffer.read(cx).file().map(|f| f.path().clone())
4024 });
4025 })?;
4026
4027 // If the project transaction's edits are all contained within this editor, then
4028 // avoid opening a new editor to display them.
4029
4030 if let Some((buffer, transaction)) = entries.first() {
4031 if entries.len() == 1 {
4032 let excerpt = this.update(&mut cx, |editor, cx| {
4033 editor
4034 .buffer()
4035 .read(cx)
4036 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4037 })?;
4038 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4039 if excerpted_buffer == *buffer {
4040 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4041 let excerpt_range = excerpt_range.to_offset(buffer);
4042 buffer
4043 .edited_ranges_for_transaction::<usize>(transaction)
4044 .all(|range| {
4045 excerpt_range.start <= range.start
4046 && excerpt_range.end >= range.end
4047 })
4048 })?;
4049
4050 if all_edits_within_excerpt {
4051 return Ok(());
4052 }
4053 }
4054 }
4055 }
4056 } else {
4057 return Ok(());
4058 }
4059
4060 let mut ranges_to_highlight = Vec::new();
4061 let excerpt_buffer = cx.new_model(|cx| {
4062 let mut multibuffer =
4063 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4064 for (buffer_handle, transaction) in &entries {
4065 let buffer = buffer_handle.read(cx);
4066 ranges_to_highlight.extend(
4067 multibuffer.push_excerpts_with_context_lines(
4068 buffer_handle.clone(),
4069 buffer
4070 .edited_ranges_for_transaction::<usize>(transaction)
4071 .collect(),
4072 DEFAULT_MULTIBUFFER_CONTEXT,
4073 cx,
4074 ),
4075 );
4076 }
4077 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4078 multibuffer
4079 })?;
4080
4081 workspace.update(&mut cx, |workspace, cx| {
4082 let project = workspace.project().clone();
4083 let editor =
4084 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4085 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4086 editor.update(cx, |editor, cx| {
4087 editor.highlight_background::<Self>(
4088 &ranges_to_highlight,
4089 |theme| theme.editor_highlighted_line_background,
4090 cx,
4091 );
4092 });
4093 })?;
4094
4095 Ok(())
4096 }
4097
4098 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4099 let project = self.project.clone()?;
4100 let buffer = self.buffer.read(cx);
4101 let newest_selection = self.selections.newest_anchor().clone();
4102 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4103 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4104 if start_buffer != end_buffer {
4105 return None;
4106 }
4107
4108 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4109 cx.background_executor()
4110 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4111 .await;
4112
4113 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4114 project.code_actions(&start_buffer, start..end, cx)
4115 }) {
4116 code_actions.await
4117 } else {
4118 Vec::new()
4119 };
4120
4121 this.update(&mut cx, |this, cx| {
4122 this.available_code_actions = if actions.is_empty() {
4123 None
4124 } else {
4125 Some((
4126 Location {
4127 buffer: start_buffer,
4128 range: start..end,
4129 },
4130 actions.into(),
4131 ))
4132 };
4133 cx.notify();
4134 })
4135 .log_err();
4136 }));
4137 None
4138 }
4139
4140 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4141 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4142 self.show_git_blame_inline = false;
4143
4144 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4145 cx.background_executor().timer(delay).await;
4146
4147 this.update(&mut cx, |this, cx| {
4148 this.show_git_blame_inline = true;
4149 cx.notify();
4150 })
4151 .log_err();
4152 }));
4153 }
4154 }
4155
4156 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4157 if self.pending_rename.is_some() {
4158 return None;
4159 }
4160
4161 let project = self.project.clone()?;
4162 let buffer = self.buffer.read(cx);
4163 let newest_selection = self.selections.newest_anchor().clone();
4164 let cursor_position = newest_selection.head();
4165 let (cursor_buffer, cursor_buffer_position) =
4166 buffer.text_anchor_for_position(cursor_position, cx)?;
4167 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4168 if cursor_buffer != tail_buffer {
4169 return None;
4170 }
4171
4172 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4173 cx.background_executor()
4174 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4175 .await;
4176
4177 let highlights = if let Some(highlights) = project
4178 .update(&mut cx, |project, cx| {
4179 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4180 })
4181 .log_err()
4182 {
4183 highlights.await.log_err()
4184 } else {
4185 None
4186 };
4187
4188 if let Some(highlights) = highlights {
4189 this.update(&mut cx, |this, cx| {
4190 if this.pending_rename.is_some() {
4191 return;
4192 }
4193
4194 let buffer_id = cursor_position.buffer_id;
4195 let buffer = this.buffer.read(cx);
4196 if !buffer
4197 .text_anchor_for_position(cursor_position, cx)
4198 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4199 {
4200 return;
4201 }
4202
4203 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4204 let mut write_ranges = Vec::new();
4205 let mut read_ranges = Vec::new();
4206 for highlight in highlights {
4207 for (excerpt_id, excerpt_range) in
4208 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4209 {
4210 let start = highlight
4211 .range
4212 .start
4213 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4214 let end = highlight
4215 .range
4216 .end
4217 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4218 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4219 continue;
4220 }
4221
4222 let range = Anchor {
4223 buffer_id,
4224 excerpt_id: excerpt_id,
4225 text_anchor: start,
4226 }..Anchor {
4227 buffer_id,
4228 excerpt_id,
4229 text_anchor: end,
4230 };
4231 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4232 write_ranges.push(range);
4233 } else {
4234 read_ranges.push(range);
4235 }
4236 }
4237 }
4238
4239 this.highlight_background::<DocumentHighlightRead>(
4240 &read_ranges,
4241 |theme| theme.editor_document_highlight_read_background,
4242 cx,
4243 );
4244 this.highlight_background::<DocumentHighlightWrite>(
4245 &write_ranges,
4246 |theme| theme.editor_document_highlight_write_background,
4247 cx,
4248 );
4249 cx.notify();
4250 })
4251 .log_err();
4252 }
4253 }));
4254 None
4255 }
4256
4257 fn refresh_inline_completion(
4258 &mut self,
4259 debounce: bool,
4260 cx: &mut ViewContext<Self>,
4261 ) -> Option<()> {
4262 let provider = self.inline_completion_provider()?;
4263 let cursor = self.selections.newest_anchor().head();
4264 let (buffer, cursor_buffer_position) =
4265 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4266 if !self.show_inline_completions
4267 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4268 {
4269 self.discard_inline_completion(cx);
4270 return None;
4271 }
4272
4273 self.update_visible_inline_completion(cx);
4274 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4275 Some(())
4276 }
4277
4278 fn cycle_inline_completion(
4279 &mut self,
4280 direction: Direction,
4281 cx: &mut ViewContext<Self>,
4282 ) -> Option<()> {
4283 let provider = self.inline_completion_provider()?;
4284 let cursor = self.selections.newest_anchor().head();
4285 let (buffer, cursor_buffer_position) =
4286 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4287 if !self.show_inline_completions
4288 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4289 {
4290 return None;
4291 }
4292
4293 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4294 self.update_visible_inline_completion(cx);
4295
4296 Some(())
4297 }
4298
4299 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4300 if !self.has_active_inline_completion(cx) {
4301 self.refresh_inline_completion(false, cx);
4302 return;
4303 }
4304
4305 self.update_visible_inline_completion(cx);
4306 }
4307
4308 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4309 self.show_cursor_names(cx);
4310 }
4311
4312 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4313 self.show_cursor_names = true;
4314 cx.notify();
4315 cx.spawn(|this, mut cx| async move {
4316 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4317 this.update(&mut cx, |this, cx| {
4318 this.show_cursor_names = false;
4319 cx.notify()
4320 })
4321 .ok()
4322 })
4323 .detach();
4324 }
4325
4326 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4327 if self.has_active_inline_completion(cx) {
4328 self.cycle_inline_completion(Direction::Next, cx);
4329 } else {
4330 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4331 if is_copilot_disabled {
4332 cx.propagate();
4333 }
4334 }
4335 }
4336
4337 pub fn previous_inline_completion(
4338 &mut self,
4339 _: &PreviousInlineCompletion,
4340 cx: &mut ViewContext<Self>,
4341 ) {
4342 if self.has_active_inline_completion(cx) {
4343 self.cycle_inline_completion(Direction::Prev, cx);
4344 } else {
4345 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4346 if is_copilot_disabled {
4347 cx.propagate();
4348 }
4349 }
4350 }
4351
4352 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4353 if let Some(completion) = self.take_active_inline_completion(cx) {
4354 if let Some(provider) = self.inline_completion_provider() {
4355 provider.accept(cx);
4356 }
4357
4358 cx.emit(EditorEvent::InputHandled {
4359 utf16_range_to_replace: None,
4360 text: completion.text.to_string().into(),
4361 });
4362 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4363 self.refresh_inline_completion(true, cx);
4364 cx.notify();
4365 true
4366 } else {
4367 false
4368 }
4369 }
4370
4371 pub fn accept_partial_inline_completion(
4372 &mut self,
4373 _: &AcceptPartialInlineCompletion,
4374 cx: &mut ViewContext<Self>,
4375 ) {
4376 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4377 if let Some(completion) = self.take_active_inline_completion(cx) {
4378 let mut partial_completion = completion
4379 .text
4380 .chars()
4381 .by_ref()
4382 .take_while(|c| c.is_alphabetic())
4383 .collect::<String>();
4384 if partial_completion.is_empty() {
4385 partial_completion = completion
4386 .text
4387 .chars()
4388 .by_ref()
4389 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4390 .collect::<String>();
4391 }
4392
4393 cx.emit(EditorEvent::InputHandled {
4394 utf16_range_to_replace: None,
4395 text: partial_completion.clone().into(),
4396 });
4397 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4398 self.refresh_inline_completion(true, cx);
4399 cx.notify();
4400 }
4401 }
4402 }
4403
4404 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4405 if let Some(provider) = self.inline_completion_provider() {
4406 provider.discard(cx);
4407 }
4408
4409 self.take_active_inline_completion(cx).is_some()
4410 }
4411
4412 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4413 if let Some(completion) = self.active_inline_completion.as_ref() {
4414 let buffer = self.buffer.read(cx).read(cx);
4415 completion.position.is_valid(&buffer)
4416 } else {
4417 false
4418 }
4419 }
4420
4421 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4422 let completion = self.active_inline_completion.take()?;
4423 self.display_map.update(cx, |map, cx| {
4424 map.splice_inlays(vec![completion.id], Default::default(), cx);
4425 });
4426 let buffer = self.buffer.read(cx).read(cx);
4427
4428 if completion.position.is_valid(&buffer) {
4429 Some(completion)
4430 } else {
4431 None
4432 }
4433 }
4434
4435 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4436 let selection = self.selections.newest_anchor();
4437 let cursor = selection.head();
4438
4439 if self.context_menu.read().is_none()
4440 && self.completion_tasks.is_empty()
4441 && selection.start == selection.end
4442 {
4443 if let Some(provider) = self.inline_completion_provider() {
4444 if let Some((buffer, cursor_buffer_position)) =
4445 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4446 {
4447 if let Some(text) =
4448 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4449 {
4450 let text = Rope::from(text);
4451 let mut to_remove = Vec::new();
4452 if let Some(completion) = self.active_inline_completion.take() {
4453 to_remove.push(completion.id);
4454 }
4455
4456 let completion_inlay =
4457 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4458 self.active_inline_completion = Some(completion_inlay.clone());
4459 self.display_map.update(cx, move |map, cx| {
4460 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4461 });
4462 cx.notify();
4463 return;
4464 }
4465 }
4466 }
4467 }
4468
4469 self.discard_inline_completion(cx);
4470 }
4471
4472 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4473 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4474 }
4475
4476 fn render_code_actions_indicator(
4477 &self,
4478 _style: &EditorStyle,
4479 row: u32,
4480 is_active: bool,
4481 cx: &mut ViewContext<Self>,
4482 ) -> Option<IconButton> {
4483 if self.available_code_actions.is_some() {
4484 Some(
4485 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4486 .icon_size(IconSize::XSmall)
4487 .size(ui::ButtonSize::None)
4488 .icon_color(Color::Muted)
4489 .selected(is_active)
4490 .on_click(cx.listener(move |editor, _e, cx| {
4491 editor.toggle_code_actions(
4492 &ToggleCodeActions {
4493 deployed_from_indicator: Some(row),
4494 },
4495 cx,
4496 );
4497 })),
4498 )
4499 } else {
4500 None
4501 }
4502 }
4503
4504 fn clear_tasks(&mut self) {
4505 self.tasks.clear()
4506 }
4507
4508 fn insert_tasks(&mut self, row: u32, tasks: RunnableTasks) {
4509 if let Some(_) = self.tasks.insert(row, tasks) {
4510 // This case should hopefully be rare, but just in case...
4511 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4512 }
4513 }
4514
4515 fn render_run_indicator(
4516 &self,
4517 _style: &EditorStyle,
4518 is_active: bool,
4519 row: u32,
4520 cx: &mut ViewContext<Self>,
4521 ) -> IconButton {
4522 IconButton::new("code_actions_indicator", ui::IconName::Play)
4523 .icon_size(IconSize::XSmall)
4524 .size(ui::ButtonSize::None)
4525 .icon_color(Color::Muted)
4526 .selected(is_active)
4527 .on_click(cx.listener(move |editor, _e, cx| {
4528 editor.toggle_code_actions(
4529 &ToggleCodeActions {
4530 deployed_from_indicator: Some(row),
4531 },
4532 cx,
4533 );
4534 }))
4535 }
4536
4537 pub fn render_fold_indicators(
4538 &mut self,
4539 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4540 _style: &EditorStyle,
4541 gutter_hovered: bool,
4542 _line_height: Pixels,
4543 _gutter_margin: Pixels,
4544 cx: &mut ViewContext<Self>,
4545 ) -> Vec<Option<AnyElement>> {
4546 fold_data
4547 .iter()
4548 .enumerate()
4549 .map(|(ix, fold_data)| {
4550 fold_data
4551 .map(|(fold_status, buffer_row, active)| {
4552 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4553 IconButton::new(ix, ui::IconName::ChevronDown)
4554 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4555 FoldStatus::Folded => {
4556 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4557 }
4558 FoldStatus::Foldable => {
4559 this.fold_at(&FoldAt { buffer_row }, cx);
4560 }
4561 }))
4562 .icon_color(ui::Color::Muted)
4563 .icon_size(ui::IconSize::Small)
4564 .selected(fold_status == FoldStatus::Folded)
4565 .selected_icon(ui::IconName::ChevronRight)
4566 .size(ui::ButtonSize::None)
4567 .into_any_element()
4568 })
4569 })
4570 .flatten()
4571 })
4572 .collect()
4573 }
4574
4575 pub fn context_menu_visible(&self) -> bool {
4576 self.context_menu
4577 .read()
4578 .as_ref()
4579 .map_or(false, |menu| menu.visible())
4580 }
4581
4582 fn render_context_menu(
4583 &self,
4584 cursor_position: DisplayPoint,
4585 style: &EditorStyle,
4586 max_height: Pixels,
4587 cx: &mut ViewContext<Editor>,
4588 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4589 self.context_menu.read().as_ref().map(|menu| {
4590 menu.render(
4591 cursor_position,
4592 style,
4593 max_height,
4594 self.workspace.as_ref().map(|(w, _)| w.clone()),
4595 cx,
4596 )
4597 })
4598 }
4599
4600 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4601 cx.notify();
4602 self.completion_tasks.clear();
4603 let context_menu = self.context_menu.write().take();
4604 if context_menu.is_some() {
4605 self.update_visible_inline_completion(cx);
4606 }
4607 context_menu
4608 }
4609
4610 pub fn insert_snippet(
4611 &mut self,
4612 insertion_ranges: &[Range<usize>],
4613 snippet: Snippet,
4614 cx: &mut ViewContext<Self>,
4615 ) -> Result<()> {
4616 let tabstops = self.buffer.update(cx, |buffer, cx| {
4617 let snippet_text: Arc<str> = snippet.text.clone().into();
4618 buffer.edit(
4619 insertion_ranges
4620 .iter()
4621 .cloned()
4622 .map(|range| (range, snippet_text.clone())),
4623 Some(AutoindentMode::EachLine),
4624 cx,
4625 );
4626
4627 let snapshot = &*buffer.read(cx);
4628 let snippet = &snippet;
4629 snippet
4630 .tabstops
4631 .iter()
4632 .map(|tabstop| {
4633 let mut tabstop_ranges = tabstop
4634 .iter()
4635 .flat_map(|tabstop_range| {
4636 let mut delta = 0_isize;
4637 insertion_ranges.iter().map(move |insertion_range| {
4638 let insertion_start = insertion_range.start as isize + delta;
4639 delta +=
4640 snippet.text.len() as isize - insertion_range.len() as isize;
4641
4642 let start = snapshot.anchor_before(
4643 (insertion_start + tabstop_range.start) as usize,
4644 );
4645 let end = snapshot
4646 .anchor_after((insertion_start + tabstop_range.end) as usize);
4647 start..end
4648 })
4649 })
4650 .collect::<Vec<_>>();
4651 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4652 tabstop_ranges
4653 })
4654 .collect::<Vec<_>>()
4655 });
4656
4657 if let Some(tabstop) = tabstops.first() {
4658 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4659 s.select_ranges(tabstop.iter().cloned());
4660 });
4661 self.snippet_stack.push(SnippetState {
4662 active_index: 0,
4663 ranges: tabstops,
4664 });
4665
4666 // Check whether the just-entered snippet ends with an auto-closable bracket.
4667 if self.autoclose_regions.is_empty() {
4668 let snapshot = self.buffer.read(cx).snapshot(cx);
4669 for selection in &mut self.selections.all::<Point>(cx) {
4670 let selection_head = selection.head();
4671 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4672 continue;
4673 };
4674
4675 let mut bracket_pair = None;
4676 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4677 let prev_chars = snapshot
4678 .reversed_chars_at(selection_head)
4679 .collect::<String>();
4680 for (pair, enabled) in scope.brackets() {
4681 if enabled
4682 && pair.close
4683 && prev_chars.starts_with(pair.start.as_str())
4684 && next_chars.starts_with(pair.end.as_str())
4685 {
4686 bracket_pair = Some(pair.clone());
4687 break;
4688 }
4689 }
4690 if let Some(pair) = bracket_pair {
4691 let start = snapshot.anchor_after(selection_head);
4692 let end = snapshot.anchor_after(selection_head);
4693 self.autoclose_regions.push(AutocloseRegion {
4694 selection_id: selection.id,
4695 range: start..end,
4696 pair,
4697 });
4698 }
4699 }
4700 }
4701 }
4702 Ok(())
4703 }
4704
4705 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4706 self.move_to_snippet_tabstop(Bias::Right, cx)
4707 }
4708
4709 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4710 self.move_to_snippet_tabstop(Bias::Left, cx)
4711 }
4712
4713 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4714 if let Some(mut snippet) = self.snippet_stack.pop() {
4715 match bias {
4716 Bias::Left => {
4717 if snippet.active_index > 0 {
4718 snippet.active_index -= 1;
4719 } else {
4720 self.snippet_stack.push(snippet);
4721 return false;
4722 }
4723 }
4724 Bias::Right => {
4725 if snippet.active_index + 1 < snippet.ranges.len() {
4726 snippet.active_index += 1;
4727 } else {
4728 self.snippet_stack.push(snippet);
4729 return false;
4730 }
4731 }
4732 }
4733 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4734 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4735 s.select_anchor_ranges(current_ranges.iter().cloned())
4736 });
4737 // If snippet state is not at the last tabstop, push it back on the stack
4738 if snippet.active_index + 1 < snippet.ranges.len() {
4739 self.snippet_stack.push(snippet);
4740 }
4741 return true;
4742 }
4743 }
4744
4745 false
4746 }
4747
4748 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4749 self.transact(cx, |this, cx| {
4750 this.select_all(&SelectAll, cx);
4751 this.insert("", cx);
4752 });
4753 }
4754
4755 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4756 self.transact(cx, |this, cx| {
4757 this.select_autoclose_pair(cx);
4758 let mut selections = this.selections.all::<Point>(cx);
4759 if !this.selections.line_mode {
4760 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4761 for selection in &mut selections {
4762 if selection.is_empty() {
4763 let old_head = selection.head();
4764 let mut new_head =
4765 movement::left(&display_map, old_head.to_display_point(&display_map))
4766 .to_point(&display_map);
4767 if let Some((buffer, line_buffer_range)) = display_map
4768 .buffer_snapshot
4769 .buffer_line_for_row(old_head.row)
4770 {
4771 let indent_size =
4772 buffer.indent_size_for_line(line_buffer_range.start.row);
4773 let indent_len = match indent_size.kind {
4774 IndentKind::Space => {
4775 buffer.settings_at(line_buffer_range.start, cx).tab_size
4776 }
4777 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4778 };
4779 if old_head.column <= indent_size.len && old_head.column > 0 {
4780 let indent_len = indent_len.get();
4781 new_head = cmp::min(
4782 new_head,
4783 Point::new(
4784 old_head.row,
4785 ((old_head.column - 1) / indent_len) * indent_len,
4786 ),
4787 );
4788 }
4789 }
4790
4791 selection.set_head(new_head, SelectionGoal::None);
4792 }
4793 }
4794 }
4795
4796 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4797 this.insert("", cx);
4798 this.refresh_inline_completion(true, cx);
4799 });
4800 }
4801
4802 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4803 self.transact(cx, |this, cx| {
4804 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4805 let line_mode = s.line_mode;
4806 s.move_with(|map, selection| {
4807 if selection.is_empty() && !line_mode {
4808 let cursor = movement::right(map, selection.head());
4809 selection.end = cursor;
4810 selection.reversed = true;
4811 selection.goal = SelectionGoal::None;
4812 }
4813 })
4814 });
4815 this.insert("", cx);
4816 this.refresh_inline_completion(true, cx);
4817 });
4818 }
4819
4820 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4821 if self.move_to_prev_snippet_tabstop(cx) {
4822 return;
4823 }
4824
4825 self.outdent(&Outdent, cx);
4826 }
4827
4828 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4829 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4830 return;
4831 }
4832
4833 let mut selections = self.selections.all_adjusted(cx);
4834 let buffer = self.buffer.read(cx);
4835 let snapshot = buffer.snapshot(cx);
4836 let rows_iter = selections.iter().map(|s| s.head().row);
4837 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4838
4839 let mut edits = Vec::new();
4840 let mut prev_edited_row = 0;
4841 let mut row_delta = 0;
4842 for selection in &mut selections {
4843 if selection.start.row != prev_edited_row {
4844 row_delta = 0;
4845 }
4846 prev_edited_row = selection.end.row;
4847
4848 // If the selection is non-empty, then increase the indentation of the selected lines.
4849 if !selection.is_empty() {
4850 row_delta =
4851 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4852 continue;
4853 }
4854
4855 // If the selection is empty and the cursor is in the leading whitespace before the
4856 // suggested indentation, then auto-indent the line.
4857 let cursor = selection.head();
4858 let current_indent = snapshot.indent_size_for_line(cursor.row);
4859 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4860 if cursor.column < suggested_indent.len
4861 && cursor.column <= current_indent.len
4862 && current_indent.len <= suggested_indent.len
4863 {
4864 selection.start = Point::new(cursor.row, suggested_indent.len);
4865 selection.end = selection.start;
4866 if row_delta == 0 {
4867 edits.extend(Buffer::edit_for_indent_size_adjustment(
4868 cursor.row,
4869 current_indent,
4870 suggested_indent,
4871 ));
4872 row_delta = suggested_indent.len - current_indent.len;
4873 }
4874 continue;
4875 }
4876 }
4877
4878 // Accept copilot completion if there is only one selection and the cursor is not
4879 // in the leading whitespace.
4880 if self.selections.count() == 1
4881 && cursor.column >= current_indent.len
4882 && self.has_active_inline_completion(cx)
4883 {
4884 self.accept_inline_completion(cx);
4885 return;
4886 }
4887
4888 // Otherwise, insert a hard or soft tab.
4889 let settings = buffer.settings_at(cursor, cx);
4890 let tab_size = if settings.hard_tabs {
4891 IndentSize::tab()
4892 } else {
4893 let tab_size = settings.tab_size.get();
4894 let char_column = snapshot
4895 .text_for_range(Point::new(cursor.row, 0)..cursor)
4896 .flat_map(str::chars)
4897 .count()
4898 + row_delta as usize;
4899 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4900 IndentSize::spaces(chars_to_next_tab_stop)
4901 };
4902 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4903 selection.end = selection.start;
4904 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4905 row_delta += tab_size.len;
4906 }
4907
4908 self.transact(cx, |this, cx| {
4909 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4910 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4911 this.refresh_inline_completion(true, cx);
4912 });
4913 }
4914
4915 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4916 if self.read_only(cx) {
4917 return;
4918 }
4919 let mut selections = self.selections.all::<Point>(cx);
4920 let mut prev_edited_row = 0;
4921 let mut row_delta = 0;
4922 let mut edits = Vec::new();
4923 let buffer = self.buffer.read(cx);
4924 let snapshot = buffer.snapshot(cx);
4925 for selection in &mut selections {
4926 if selection.start.row != prev_edited_row {
4927 row_delta = 0;
4928 }
4929 prev_edited_row = selection.end.row;
4930
4931 row_delta =
4932 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4933 }
4934
4935 self.transact(cx, |this, cx| {
4936 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4937 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4938 });
4939 }
4940
4941 fn indent_selection(
4942 buffer: &MultiBuffer,
4943 snapshot: &MultiBufferSnapshot,
4944 selection: &mut Selection<Point>,
4945 edits: &mut Vec<(Range<Point>, String)>,
4946 delta_for_start_row: u32,
4947 cx: &AppContext,
4948 ) -> u32 {
4949 let settings = buffer.settings_at(selection.start, cx);
4950 let tab_size = settings.tab_size.get();
4951 let indent_kind = if settings.hard_tabs {
4952 IndentKind::Tab
4953 } else {
4954 IndentKind::Space
4955 };
4956 let mut start_row = selection.start.row;
4957 let mut end_row = selection.end.row + 1;
4958
4959 // If a selection ends at the beginning of a line, don't indent
4960 // that last line.
4961 if selection.end.column == 0 && selection.end.row > selection.start.row {
4962 end_row -= 1;
4963 }
4964
4965 // Avoid re-indenting a row that has already been indented by a
4966 // previous selection, but still update this selection's column
4967 // to reflect that indentation.
4968 if delta_for_start_row > 0 {
4969 start_row += 1;
4970 selection.start.column += delta_for_start_row;
4971 if selection.end.row == selection.start.row {
4972 selection.end.column += delta_for_start_row;
4973 }
4974 }
4975
4976 let mut delta_for_end_row = 0;
4977 let has_multiple_rows = start_row + 1 != end_row;
4978 for row in start_row..end_row {
4979 let current_indent = snapshot.indent_size_for_line(row);
4980 let indent_delta = match (current_indent.kind, indent_kind) {
4981 (IndentKind::Space, IndentKind::Space) => {
4982 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4983 IndentSize::spaces(columns_to_next_tab_stop)
4984 }
4985 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4986 (_, IndentKind::Tab) => IndentSize::tab(),
4987 };
4988
4989 let start = if has_multiple_rows || current_indent.len < selection.start.column {
4990 0
4991 } else {
4992 selection.start.column
4993 };
4994 let row_start = Point::new(row, start);
4995 edits.push((
4996 row_start..row_start,
4997 indent_delta.chars().collect::<String>(),
4998 ));
4999
5000 // Update this selection's endpoints to reflect the indentation.
5001 if row == selection.start.row {
5002 selection.start.column += indent_delta.len;
5003 }
5004 if row == selection.end.row {
5005 selection.end.column += indent_delta.len;
5006 delta_for_end_row = indent_delta.len;
5007 }
5008 }
5009
5010 if selection.start.row == selection.end.row {
5011 delta_for_start_row + delta_for_end_row
5012 } else {
5013 delta_for_end_row
5014 }
5015 }
5016
5017 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5018 if self.read_only(cx) {
5019 return;
5020 }
5021 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5022 let selections = self.selections.all::<Point>(cx);
5023 let mut deletion_ranges = Vec::new();
5024 let mut last_outdent = None;
5025 {
5026 let buffer = self.buffer.read(cx);
5027 let snapshot = buffer.snapshot(cx);
5028 for selection in &selections {
5029 let settings = buffer.settings_at(selection.start, cx);
5030 let tab_size = settings.tab_size.get();
5031 let mut rows = selection.spanned_rows(false, &display_map);
5032
5033 // Avoid re-outdenting a row that has already been outdented by a
5034 // previous selection.
5035 if let Some(last_row) = last_outdent {
5036 if last_row == rows.start {
5037 rows.start += 1;
5038 }
5039 }
5040 let has_multiple_rows = rows.len() > 1;
5041 for row in rows {
5042 let indent_size = snapshot.indent_size_for_line(row);
5043 if indent_size.len > 0 {
5044 let deletion_len = match indent_size.kind {
5045 IndentKind::Space => {
5046 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5047 if columns_to_prev_tab_stop == 0 {
5048 tab_size
5049 } else {
5050 columns_to_prev_tab_stop
5051 }
5052 }
5053 IndentKind::Tab => 1,
5054 };
5055 let start = if has_multiple_rows
5056 || deletion_len > selection.start.column
5057 || indent_size.len < selection.start.column
5058 {
5059 0
5060 } else {
5061 selection.start.column - deletion_len
5062 };
5063 deletion_ranges
5064 .push(Point::new(row, start)..Point::new(row, start + deletion_len));
5065 last_outdent = Some(row);
5066 }
5067 }
5068 }
5069 }
5070
5071 self.transact(cx, |this, cx| {
5072 this.buffer.update(cx, |buffer, cx| {
5073 let empty_str: Arc<str> = "".into();
5074 buffer.edit(
5075 deletion_ranges
5076 .into_iter()
5077 .map(|range| (range, empty_str.clone())),
5078 None,
5079 cx,
5080 );
5081 });
5082 let selections = this.selections.all::<usize>(cx);
5083 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5084 });
5085 }
5086
5087 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5088 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5089 let selections = self.selections.all::<Point>(cx);
5090
5091 let mut new_cursors = Vec::new();
5092 let mut edit_ranges = Vec::new();
5093 let mut selections = selections.iter().peekable();
5094 while let Some(selection) = selections.next() {
5095 let mut rows = selection.spanned_rows(false, &display_map);
5096 let goal_display_column = selection.head().to_display_point(&display_map).column();
5097
5098 // Accumulate contiguous regions of rows that we want to delete.
5099 while let Some(next_selection) = selections.peek() {
5100 let next_rows = next_selection.spanned_rows(false, &display_map);
5101 if next_rows.start <= rows.end {
5102 rows.end = next_rows.end;
5103 selections.next().unwrap();
5104 } else {
5105 break;
5106 }
5107 }
5108
5109 let buffer = &display_map.buffer_snapshot;
5110 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
5111 let edit_end;
5112 let cursor_buffer_row;
5113 if buffer.max_point().row >= rows.end {
5114 // If there's a line after the range, delete the \n from the end of the row range
5115 // and position the cursor on the next line.
5116 edit_end = Point::new(rows.end, 0).to_offset(buffer);
5117 cursor_buffer_row = rows.end;
5118 } else {
5119 // If there isn't a line after the range, delete the \n from the line before the
5120 // start of the row range and position the cursor there.
5121 edit_start = edit_start.saturating_sub(1);
5122 edit_end = buffer.len();
5123 cursor_buffer_row = rows.start.saturating_sub(1);
5124 }
5125
5126 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
5127 *cursor.column_mut() =
5128 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5129
5130 new_cursors.push((
5131 selection.id,
5132 buffer.anchor_after(cursor.to_point(&display_map)),
5133 ));
5134 edit_ranges.push(edit_start..edit_end);
5135 }
5136
5137 self.transact(cx, |this, cx| {
5138 let buffer = this.buffer.update(cx, |buffer, cx| {
5139 let empty_str: Arc<str> = "".into();
5140 buffer.edit(
5141 edit_ranges
5142 .into_iter()
5143 .map(|range| (range, empty_str.clone())),
5144 None,
5145 cx,
5146 );
5147 buffer.snapshot(cx)
5148 });
5149 let new_selections = new_cursors
5150 .into_iter()
5151 .map(|(id, cursor)| {
5152 let cursor = cursor.to_point(&buffer);
5153 Selection {
5154 id,
5155 start: cursor,
5156 end: cursor,
5157 reversed: false,
5158 goal: SelectionGoal::None,
5159 }
5160 })
5161 .collect();
5162
5163 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5164 s.select(new_selections);
5165 });
5166 });
5167 }
5168
5169 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5170 if self.read_only(cx) {
5171 return;
5172 }
5173 let mut row_ranges = Vec::<Range<u32>>::new();
5174 for selection in self.selections.all::<Point>(cx) {
5175 let start = selection.start.row;
5176 let end = if selection.start.row == selection.end.row {
5177 selection.start.row + 1
5178 } else {
5179 selection.end.row
5180 };
5181
5182 if let Some(last_row_range) = row_ranges.last_mut() {
5183 if start <= last_row_range.end {
5184 last_row_range.end = end;
5185 continue;
5186 }
5187 }
5188 row_ranges.push(start..end);
5189 }
5190
5191 let snapshot = self.buffer.read(cx).snapshot(cx);
5192 let mut cursor_positions = Vec::new();
5193 for row_range in &row_ranges {
5194 let anchor = snapshot.anchor_before(Point::new(
5195 row_range.end - 1,
5196 snapshot.line_len(row_range.end - 1),
5197 ));
5198 cursor_positions.push(anchor..anchor);
5199 }
5200
5201 self.transact(cx, |this, cx| {
5202 for row_range in row_ranges.into_iter().rev() {
5203 for row in row_range.rev() {
5204 let end_of_line = Point::new(row, snapshot.line_len(row));
5205 let indent = snapshot.indent_size_for_line(row + 1);
5206 let start_of_next_line = Point::new(row + 1, indent.len);
5207
5208 let replace = if snapshot.line_len(row + 1) > indent.len {
5209 " "
5210 } else {
5211 ""
5212 };
5213
5214 this.buffer.update(cx, |buffer, cx| {
5215 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5216 });
5217 }
5218 }
5219
5220 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5221 s.select_anchor_ranges(cursor_positions)
5222 });
5223 });
5224 }
5225
5226 pub fn sort_lines_case_sensitive(
5227 &mut self,
5228 _: &SortLinesCaseSensitive,
5229 cx: &mut ViewContext<Self>,
5230 ) {
5231 self.manipulate_lines(cx, |lines| lines.sort())
5232 }
5233
5234 pub fn sort_lines_case_insensitive(
5235 &mut self,
5236 _: &SortLinesCaseInsensitive,
5237 cx: &mut ViewContext<Self>,
5238 ) {
5239 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5240 }
5241
5242 pub fn unique_lines_case_insensitive(
5243 &mut self,
5244 _: &UniqueLinesCaseInsensitive,
5245 cx: &mut ViewContext<Self>,
5246 ) {
5247 self.manipulate_lines(cx, |lines| {
5248 let mut seen = HashSet::default();
5249 lines.retain(|line| seen.insert(line.to_lowercase()));
5250 })
5251 }
5252
5253 pub fn unique_lines_case_sensitive(
5254 &mut self,
5255 _: &UniqueLinesCaseSensitive,
5256 cx: &mut ViewContext<Self>,
5257 ) {
5258 self.manipulate_lines(cx, |lines| {
5259 let mut seen = HashSet::default();
5260 lines.retain(|line| seen.insert(*line));
5261 })
5262 }
5263
5264 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5265 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5266 if !revert_changes.is_empty() {
5267 self.transact(cx, |editor, cx| {
5268 editor.buffer().update(cx, |multi_buffer, cx| {
5269 for (buffer_id, changes) in revert_changes {
5270 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5271 buffer.update(cx, |buffer, cx| {
5272 buffer.edit(
5273 changes.into_iter().map(|(range, text)| {
5274 (range, text.to_string().map(Arc::<str>::from))
5275 }),
5276 None,
5277 cx,
5278 );
5279 });
5280 }
5281 }
5282 });
5283 editor.change_selections(None, cx, |selections| selections.refresh());
5284 });
5285 }
5286 }
5287
5288 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5289 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5290 let project_path = buffer.read(cx).project_path(cx)?;
5291 let project = self.project.as_ref()?.read(cx);
5292 let entry = project.entry_for_path(&project_path, cx)?;
5293 let abs_path = project.absolute_path(&project_path, cx)?;
5294 let parent = if entry.is_symlink {
5295 abs_path.canonicalize().ok()?
5296 } else {
5297 abs_path
5298 }
5299 .parent()?
5300 .to_path_buf();
5301 Some(parent)
5302 }) {
5303 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5304 }
5305 }
5306
5307 fn gather_revert_changes(
5308 &mut self,
5309 selections: &[Selection<Anchor>],
5310 cx: &mut ViewContext<'_, Editor>,
5311 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5312 let mut revert_changes = HashMap::default();
5313 self.buffer.update(cx, |multi_buffer, cx| {
5314 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5315 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5316 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5317 }
5318 });
5319 revert_changes
5320 }
5321
5322 fn prepare_revert_change(
5323 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5324 multi_buffer: &MultiBuffer,
5325 hunk: &DiffHunk<u32>,
5326 cx: &mut AppContext,
5327 ) -> Option<()> {
5328 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5329 let buffer = buffer.read(cx);
5330 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5331 let buffer_snapshot = buffer.snapshot();
5332 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5333 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5334 probe
5335 .0
5336 .start
5337 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5338 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5339 }) {
5340 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5341 Some(())
5342 } else {
5343 None
5344 }
5345 }
5346
5347 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5348 self.manipulate_lines(cx, |lines| lines.reverse())
5349 }
5350
5351 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5352 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5353 }
5354
5355 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5356 where
5357 Fn: FnMut(&mut Vec<&str>),
5358 {
5359 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5360 let buffer = self.buffer.read(cx).snapshot(cx);
5361
5362 let mut edits = Vec::new();
5363
5364 let selections = self.selections.all::<Point>(cx);
5365 let mut selections = selections.iter().peekable();
5366 let mut contiguous_row_selections = Vec::new();
5367 let mut new_selections = Vec::new();
5368 let mut added_lines = 0;
5369 let mut removed_lines = 0;
5370
5371 while let Some(selection) = selections.next() {
5372 let (start_row, end_row) = consume_contiguous_rows(
5373 &mut contiguous_row_selections,
5374 selection,
5375 &display_map,
5376 &mut selections,
5377 );
5378
5379 let start_point = Point::new(start_row, 0);
5380 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5381 let text = buffer
5382 .text_for_range(start_point..end_point)
5383 .collect::<String>();
5384
5385 let mut lines = text.split('\n').collect_vec();
5386
5387 let lines_before = lines.len();
5388 callback(&mut lines);
5389 let lines_after = lines.len();
5390
5391 edits.push((start_point..end_point, lines.join("\n")));
5392
5393 // Selections must change based on added and removed line count
5394 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5395 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5396 new_selections.push(Selection {
5397 id: selection.id,
5398 start: start_row,
5399 end: end_row,
5400 goal: SelectionGoal::None,
5401 reversed: selection.reversed,
5402 });
5403
5404 if lines_after > lines_before {
5405 added_lines += lines_after - lines_before;
5406 } else if lines_before > lines_after {
5407 removed_lines += lines_before - lines_after;
5408 }
5409 }
5410
5411 self.transact(cx, |this, cx| {
5412 let buffer = this.buffer.update(cx, |buffer, cx| {
5413 buffer.edit(edits, None, cx);
5414 buffer.snapshot(cx)
5415 });
5416
5417 // Recalculate offsets on newly edited buffer
5418 let new_selections = new_selections
5419 .iter()
5420 .map(|s| {
5421 let start_point = Point::new(s.start, 0);
5422 let end_point = Point::new(s.end, buffer.line_len(s.end));
5423 Selection {
5424 id: s.id,
5425 start: buffer.point_to_offset(start_point),
5426 end: buffer.point_to_offset(end_point),
5427 goal: s.goal,
5428 reversed: s.reversed,
5429 }
5430 })
5431 .collect();
5432
5433 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5434 s.select(new_selections);
5435 });
5436
5437 this.request_autoscroll(Autoscroll::fit(), cx);
5438 });
5439 }
5440
5441 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5442 self.manipulate_text(cx, |text| text.to_uppercase())
5443 }
5444
5445 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5446 self.manipulate_text(cx, |text| text.to_lowercase())
5447 }
5448
5449 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5450 self.manipulate_text(cx, |text| {
5451 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5452 // https://github.com/rutrum/convert-case/issues/16
5453 text.split('\n')
5454 .map(|line| line.to_case(Case::Title))
5455 .join("\n")
5456 })
5457 }
5458
5459 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5460 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5461 }
5462
5463 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5464 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5465 }
5466
5467 pub fn convert_to_upper_camel_case(
5468 &mut self,
5469 _: &ConvertToUpperCamelCase,
5470 cx: &mut ViewContext<Self>,
5471 ) {
5472 self.manipulate_text(cx, |text| {
5473 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5474 // https://github.com/rutrum/convert-case/issues/16
5475 text.split('\n')
5476 .map(|line| line.to_case(Case::UpperCamel))
5477 .join("\n")
5478 })
5479 }
5480
5481 pub fn convert_to_lower_camel_case(
5482 &mut self,
5483 _: &ConvertToLowerCamelCase,
5484 cx: &mut ViewContext<Self>,
5485 ) {
5486 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5487 }
5488
5489 pub fn convert_to_opposite_case(
5490 &mut self,
5491 _: &ConvertToOppositeCase,
5492 cx: &mut ViewContext<Self>,
5493 ) {
5494 self.manipulate_text(cx, |text| {
5495 text.chars()
5496 .fold(String::with_capacity(text.len()), |mut t, c| {
5497 if c.is_uppercase() {
5498 t.extend(c.to_lowercase());
5499 } else {
5500 t.extend(c.to_uppercase());
5501 }
5502 t
5503 })
5504 })
5505 }
5506
5507 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5508 where
5509 Fn: FnMut(&str) -> String,
5510 {
5511 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5512 let buffer = self.buffer.read(cx).snapshot(cx);
5513
5514 let mut new_selections = Vec::new();
5515 let mut edits = Vec::new();
5516 let mut selection_adjustment = 0i32;
5517
5518 for selection in self.selections.all::<usize>(cx) {
5519 let selection_is_empty = selection.is_empty();
5520
5521 let (start, end) = if selection_is_empty {
5522 let word_range = movement::surrounding_word(
5523 &display_map,
5524 selection.start.to_display_point(&display_map),
5525 );
5526 let start = word_range.start.to_offset(&display_map, Bias::Left);
5527 let end = word_range.end.to_offset(&display_map, Bias::Left);
5528 (start, end)
5529 } else {
5530 (selection.start, selection.end)
5531 };
5532
5533 let text = buffer.text_for_range(start..end).collect::<String>();
5534 let old_length = text.len() as i32;
5535 let text = callback(&text);
5536
5537 new_selections.push(Selection {
5538 start: (start as i32 - selection_adjustment) as usize,
5539 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5540 goal: SelectionGoal::None,
5541 ..selection
5542 });
5543
5544 selection_adjustment += old_length - text.len() as i32;
5545
5546 edits.push((start..end, text));
5547 }
5548
5549 self.transact(cx, |this, cx| {
5550 this.buffer.update(cx, |buffer, cx| {
5551 buffer.edit(edits, None, cx);
5552 });
5553
5554 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5555 s.select(new_selections);
5556 });
5557
5558 this.request_autoscroll(Autoscroll::fit(), cx);
5559 });
5560 }
5561
5562 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5563 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5564 let buffer = &display_map.buffer_snapshot;
5565 let selections = self.selections.all::<Point>(cx);
5566
5567 let mut edits = Vec::new();
5568 let mut selections_iter = selections.iter().peekable();
5569 while let Some(selection) = selections_iter.next() {
5570 // Avoid duplicating the same lines twice.
5571 let mut rows = selection.spanned_rows(false, &display_map);
5572
5573 while let Some(next_selection) = selections_iter.peek() {
5574 let next_rows = next_selection.spanned_rows(false, &display_map);
5575 if next_rows.start < rows.end {
5576 rows.end = next_rows.end;
5577 selections_iter.next().unwrap();
5578 } else {
5579 break;
5580 }
5581 }
5582
5583 // Copy the text from the selected row region and splice it either at the start
5584 // or end of the region.
5585 let start = Point::new(rows.start, 0);
5586 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5587 let text = buffer
5588 .text_for_range(start..end)
5589 .chain(Some("\n"))
5590 .collect::<String>();
5591 let insert_location = if upwards {
5592 Point::new(rows.end, 0)
5593 } else {
5594 start
5595 };
5596 edits.push((insert_location..insert_location, text));
5597 }
5598
5599 self.transact(cx, |this, cx| {
5600 this.buffer.update(cx, |buffer, cx| {
5601 buffer.edit(edits, None, cx);
5602 });
5603
5604 this.request_autoscroll(Autoscroll::fit(), cx);
5605 });
5606 }
5607
5608 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5609 self.duplicate_line(true, cx);
5610 }
5611
5612 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5613 self.duplicate_line(false, cx);
5614 }
5615
5616 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5617 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5618 let buffer = self.buffer.read(cx).snapshot(cx);
5619
5620 let mut edits = Vec::new();
5621 let mut unfold_ranges = Vec::new();
5622 let mut refold_ranges = Vec::new();
5623
5624 let selections = self.selections.all::<Point>(cx);
5625 let mut selections = selections.iter().peekable();
5626 let mut contiguous_row_selections = Vec::new();
5627 let mut new_selections = Vec::new();
5628
5629 while let Some(selection) = selections.next() {
5630 // Find all the selections that span a contiguous row range
5631 let (start_row, end_row) = consume_contiguous_rows(
5632 &mut contiguous_row_selections,
5633 selection,
5634 &display_map,
5635 &mut selections,
5636 );
5637
5638 // Move the text spanned by the row range to be before the line preceding the row range
5639 if start_row > 0 {
5640 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5641 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5642 let insertion_point = display_map
5643 .prev_line_boundary(Point::new(start_row - 1, 0))
5644 .0;
5645
5646 // Don't move lines across excerpts
5647 if buffer
5648 .excerpt_boundaries_in_range((
5649 Bound::Excluded(insertion_point),
5650 Bound::Included(range_to_move.end),
5651 ))
5652 .next()
5653 .is_none()
5654 {
5655 let text = buffer
5656 .text_for_range(range_to_move.clone())
5657 .flat_map(|s| s.chars())
5658 .skip(1)
5659 .chain(['\n'])
5660 .collect::<String>();
5661
5662 edits.push((
5663 buffer.anchor_after(range_to_move.start)
5664 ..buffer.anchor_before(range_to_move.end),
5665 String::new(),
5666 ));
5667 let insertion_anchor = buffer.anchor_after(insertion_point);
5668 edits.push((insertion_anchor..insertion_anchor, text));
5669
5670 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5671
5672 // Move selections up
5673 new_selections.extend(contiguous_row_selections.drain(..).map(
5674 |mut selection| {
5675 selection.start.row -= row_delta;
5676 selection.end.row -= row_delta;
5677 selection
5678 },
5679 ));
5680
5681 // Move folds up
5682 unfold_ranges.push(range_to_move.clone());
5683 for fold in display_map.folds_in_range(
5684 buffer.anchor_before(range_to_move.start)
5685 ..buffer.anchor_after(range_to_move.end),
5686 ) {
5687 let mut start = fold.range.start.to_point(&buffer);
5688 let mut end = fold.range.end.to_point(&buffer);
5689 start.row -= row_delta;
5690 end.row -= row_delta;
5691 refold_ranges.push(start..end);
5692 }
5693 }
5694 }
5695
5696 // If we didn't move line(s), preserve the existing selections
5697 new_selections.append(&mut contiguous_row_selections);
5698 }
5699
5700 self.transact(cx, |this, cx| {
5701 this.unfold_ranges(unfold_ranges, true, true, cx);
5702 this.buffer.update(cx, |buffer, cx| {
5703 for (range, text) in edits {
5704 buffer.edit([(range, text)], None, cx);
5705 }
5706 });
5707 this.fold_ranges(refold_ranges, true, cx);
5708 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5709 s.select(new_selections);
5710 })
5711 });
5712 }
5713
5714 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5715 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5716 let buffer = self.buffer.read(cx).snapshot(cx);
5717
5718 let mut edits = Vec::new();
5719 let mut unfold_ranges = Vec::new();
5720 let mut refold_ranges = Vec::new();
5721
5722 let selections = self.selections.all::<Point>(cx);
5723 let mut selections = selections.iter().peekable();
5724 let mut contiguous_row_selections = Vec::new();
5725 let mut new_selections = Vec::new();
5726
5727 while let Some(selection) = selections.next() {
5728 // Find all the selections that span a contiguous row range
5729 let (start_row, end_row) = consume_contiguous_rows(
5730 &mut contiguous_row_selections,
5731 selection,
5732 &display_map,
5733 &mut selections,
5734 );
5735
5736 // Move the text spanned by the row range to be after the last line of the row range
5737 if end_row <= buffer.max_point().row {
5738 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5739 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5740
5741 // Don't move lines across excerpt boundaries
5742 if buffer
5743 .excerpt_boundaries_in_range((
5744 Bound::Excluded(range_to_move.start),
5745 Bound::Included(insertion_point),
5746 ))
5747 .next()
5748 .is_none()
5749 {
5750 let mut text = String::from("\n");
5751 text.extend(buffer.text_for_range(range_to_move.clone()));
5752 text.pop(); // Drop trailing newline
5753 edits.push((
5754 buffer.anchor_after(range_to_move.start)
5755 ..buffer.anchor_before(range_to_move.end),
5756 String::new(),
5757 ));
5758 let insertion_anchor = buffer.anchor_after(insertion_point);
5759 edits.push((insertion_anchor..insertion_anchor, text));
5760
5761 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5762
5763 // Move selections down
5764 new_selections.extend(contiguous_row_selections.drain(..).map(
5765 |mut selection| {
5766 selection.start.row += row_delta;
5767 selection.end.row += row_delta;
5768 selection
5769 },
5770 ));
5771
5772 // Move folds down
5773 unfold_ranges.push(range_to_move.clone());
5774 for fold in display_map.folds_in_range(
5775 buffer.anchor_before(range_to_move.start)
5776 ..buffer.anchor_after(range_to_move.end),
5777 ) {
5778 let mut start = fold.range.start.to_point(&buffer);
5779 let mut end = fold.range.end.to_point(&buffer);
5780 start.row += row_delta;
5781 end.row += row_delta;
5782 refold_ranges.push(start..end);
5783 }
5784 }
5785 }
5786
5787 // If we didn't move line(s), preserve the existing selections
5788 new_selections.append(&mut contiguous_row_selections);
5789 }
5790
5791 self.transact(cx, |this, cx| {
5792 this.unfold_ranges(unfold_ranges, true, true, cx);
5793 this.buffer.update(cx, |buffer, cx| {
5794 for (range, text) in edits {
5795 buffer.edit([(range, text)], None, cx);
5796 }
5797 });
5798 this.fold_ranges(refold_ranges, true, cx);
5799 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5800 });
5801 }
5802
5803 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5804 let text_layout_details = &self.text_layout_details(cx);
5805 self.transact(cx, |this, cx| {
5806 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5807 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5808 let line_mode = s.line_mode;
5809 s.move_with(|display_map, selection| {
5810 if !selection.is_empty() || line_mode {
5811 return;
5812 }
5813
5814 let mut head = selection.head();
5815 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5816 if head.column() == display_map.line_len(head.row()) {
5817 transpose_offset = display_map
5818 .buffer_snapshot
5819 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5820 }
5821
5822 if transpose_offset == 0 {
5823 return;
5824 }
5825
5826 *head.column_mut() += 1;
5827 head = display_map.clip_point(head, Bias::Right);
5828 let goal = SelectionGoal::HorizontalPosition(
5829 display_map
5830 .x_for_display_point(head, &text_layout_details)
5831 .into(),
5832 );
5833 selection.collapse_to(head, goal);
5834
5835 let transpose_start = display_map
5836 .buffer_snapshot
5837 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5838 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5839 let transpose_end = display_map
5840 .buffer_snapshot
5841 .clip_offset(transpose_offset + 1, Bias::Right);
5842 if let Some(ch) =
5843 display_map.buffer_snapshot.chars_at(transpose_start).next()
5844 {
5845 edits.push((transpose_start..transpose_offset, String::new()));
5846 edits.push((transpose_end..transpose_end, ch.to_string()));
5847 }
5848 }
5849 });
5850 edits
5851 });
5852 this.buffer
5853 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5854 let selections = this.selections.all::<usize>(cx);
5855 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5856 s.select(selections);
5857 });
5858 });
5859 }
5860
5861 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5862 let mut text = String::new();
5863 let buffer = self.buffer.read(cx).snapshot(cx);
5864 let mut selections = self.selections.all::<Point>(cx);
5865 let mut clipboard_selections = Vec::with_capacity(selections.len());
5866 {
5867 let max_point = buffer.max_point();
5868 let mut is_first = true;
5869 for selection in &mut selections {
5870 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5871 if is_entire_line {
5872 selection.start = Point::new(selection.start.row, 0);
5873 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5874 selection.goal = SelectionGoal::None;
5875 }
5876 if is_first {
5877 is_first = false;
5878 } else {
5879 text += "\n";
5880 }
5881 let mut len = 0;
5882 for chunk in buffer.text_for_range(selection.start..selection.end) {
5883 text.push_str(chunk);
5884 len += chunk.len();
5885 }
5886 clipboard_selections.push(ClipboardSelection {
5887 len,
5888 is_entire_line,
5889 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5890 });
5891 }
5892 }
5893
5894 self.transact(cx, |this, cx| {
5895 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5896 s.select(selections);
5897 });
5898 this.insert("", cx);
5899 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5900 });
5901 }
5902
5903 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5904 let selections = self.selections.all::<Point>(cx);
5905 let buffer = self.buffer.read(cx).read(cx);
5906 let mut text = String::new();
5907
5908 let mut clipboard_selections = Vec::with_capacity(selections.len());
5909 {
5910 let max_point = buffer.max_point();
5911 let mut is_first = true;
5912 for selection in selections.iter() {
5913 let mut start = selection.start;
5914 let mut end = selection.end;
5915 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5916 if is_entire_line {
5917 start = Point::new(start.row, 0);
5918 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5919 }
5920 if is_first {
5921 is_first = false;
5922 } else {
5923 text += "\n";
5924 }
5925 let mut len = 0;
5926 for chunk in buffer.text_for_range(start..end) {
5927 text.push_str(chunk);
5928 len += chunk.len();
5929 }
5930 clipboard_selections.push(ClipboardSelection {
5931 len,
5932 is_entire_line,
5933 first_line_indent: buffer.indent_size_for_line(start.row).len,
5934 });
5935 }
5936 }
5937
5938 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5939 }
5940
5941 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5942 if self.read_only(cx) {
5943 return;
5944 }
5945
5946 self.transact(cx, |this, cx| {
5947 if let Some(item) = cx.read_from_clipboard() {
5948 let clipboard_text = Cow::Borrowed(item.text());
5949 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5950 let old_selections = this.selections.all::<usize>(cx);
5951 let all_selections_were_entire_line =
5952 clipboard_selections.iter().all(|s| s.is_entire_line);
5953 let first_selection_indent_column =
5954 clipboard_selections.first().map(|s| s.first_line_indent);
5955 if clipboard_selections.len() != old_selections.len() {
5956 clipboard_selections.drain(..);
5957 }
5958
5959 this.buffer.update(cx, |buffer, cx| {
5960 let snapshot = buffer.read(cx);
5961 let mut start_offset = 0;
5962 let mut edits = Vec::new();
5963 let mut original_indent_columns = Vec::new();
5964 let line_mode = this.selections.line_mode;
5965 for (ix, selection) in old_selections.iter().enumerate() {
5966 let to_insert;
5967 let entire_line;
5968 let original_indent_column;
5969 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5970 let end_offset = start_offset + clipboard_selection.len;
5971 to_insert = &clipboard_text[start_offset..end_offset];
5972 entire_line = clipboard_selection.is_entire_line;
5973 start_offset = end_offset + 1;
5974 original_indent_column =
5975 Some(clipboard_selection.first_line_indent);
5976 } else {
5977 to_insert = clipboard_text.as_str();
5978 entire_line = all_selections_were_entire_line;
5979 original_indent_column = first_selection_indent_column
5980 }
5981
5982 // If the corresponding selection was empty when this slice of the
5983 // clipboard text was written, then the entire line containing the
5984 // selection was copied. If this selection is also currently empty,
5985 // then paste the line before the current line of the buffer.
5986 let range = if selection.is_empty() && !line_mode && entire_line {
5987 let column = selection.start.to_point(&snapshot).column as usize;
5988 let line_start = selection.start - column;
5989 line_start..line_start
5990 } else {
5991 selection.range()
5992 };
5993
5994 edits.push((range, to_insert));
5995 original_indent_columns.extend(original_indent_column);
5996 }
5997 drop(snapshot);
5998
5999 buffer.edit(
6000 edits,
6001 Some(AutoindentMode::Block {
6002 original_indent_columns,
6003 }),
6004 cx,
6005 );
6006 });
6007
6008 let selections = this.selections.all::<usize>(cx);
6009 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6010 } else {
6011 this.insert(&clipboard_text, cx);
6012 }
6013 }
6014 });
6015 }
6016
6017 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6018 if self.read_only(cx) {
6019 return;
6020 }
6021
6022 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6023 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6024 self.change_selections(None, cx, |s| {
6025 s.select_anchors(selections.to_vec());
6026 });
6027 }
6028 self.request_autoscroll(Autoscroll::fit(), cx);
6029 self.unmark_text(cx);
6030 self.refresh_inline_completion(true, cx);
6031 cx.emit(EditorEvent::Edited);
6032 cx.emit(EditorEvent::TransactionUndone {
6033 transaction_id: tx_id,
6034 });
6035 }
6036 }
6037
6038 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6039 if self.read_only(cx) {
6040 return;
6041 }
6042
6043 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6044 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6045 {
6046 self.change_selections(None, cx, |s| {
6047 s.select_anchors(selections.to_vec());
6048 });
6049 }
6050 self.request_autoscroll(Autoscroll::fit(), cx);
6051 self.unmark_text(cx);
6052 self.refresh_inline_completion(true, cx);
6053 cx.emit(EditorEvent::Edited);
6054 }
6055 }
6056
6057 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6058 self.buffer
6059 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6060 }
6061
6062 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6063 self.buffer
6064 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6065 }
6066
6067 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6068 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6069 let line_mode = s.line_mode;
6070 s.move_with(|map, selection| {
6071 let cursor = if selection.is_empty() && !line_mode {
6072 movement::left(map, selection.start)
6073 } else {
6074 selection.start
6075 };
6076 selection.collapse_to(cursor, SelectionGoal::None);
6077 });
6078 })
6079 }
6080
6081 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6083 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6084 })
6085 }
6086
6087 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6088 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6089 let line_mode = s.line_mode;
6090 s.move_with(|map, selection| {
6091 let cursor = if selection.is_empty() && !line_mode {
6092 movement::right(map, selection.end)
6093 } else {
6094 selection.end
6095 };
6096 selection.collapse_to(cursor, SelectionGoal::None)
6097 });
6098 })
6099 }
6100
6101 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6103 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6104 })
6105 }
6106
6107 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6108 if self.take_rename(true, cx).is_some() {
6109 return;
6110 }
6111
6112 if matches!(self.mode, EditorMode::SingleLine) {
6113 cx.propagate();
6114 return;
6115 }
6116
6117 let text_layout_details = &self.text_layout_details(cx);
6118
6119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6120 let line_mode = s.line_mode;
6121 s.move_with(|map, selection| {
6122 if !selection.is_empty() && !line_mode {
6123 selection.goal = SelectionGoal::None;
6124 }
6125 let (cursor, goal) = movement::up(
6126 map,
6127 selection.start,
6128 selection.goal,
6129 false,
6130 &text_layout_details,
6131 );
6132 selection.collapse_to(cursor, goal);
6133 });
6134 })
6135 }
6136
6137 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6138 if self.take_rename(true, cx).is_some() {
6139 return;
6140 }
6141
6142 if matches!(self.mode, EditorMode::SingleLine) {
6143 cx.propagate();
6144 return;
6145 }
6146
6147 let text_layout_details = &self.text_layout_details(cx);
6148
6149 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6150 let line_mode = s.line_mode;
6151 s.move_with(|map, selection| {
6152 if !selection.is_empty() && !line_mode {
6153 selection.goal = SelectionGoal::None;
6154 }
6155 let (cursor, goal) = movement::up_by_rows(
6156 map,
6157 selection.start,
6158 action.lines,
6159 selection.goal,
6160 false,
6161 &text_layout_details,
6162 );
6163 selection.collapse_to(cursor, goal);
6164 });
6165 })
6166 }
6167
6168 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6169 if self.take_rename(true, cx).is_some() {
6170 return;
6171 }
6172
6173 if matches!(self.mode, EditorMode::SingleLine) {
6174 cx.propagate();
6175 return;
6176 }
6177
6178 let text_layout_details = &self.text_layout_details(cx);
6179
6180 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6181 let line_mode = s.line_mode;
6182 s.move_with(|map, selection| {
6183 if !selection.is_empty() && !line_mode {
6184 selection.goal = SelectionGoal::None;
6185 }
6186 let (cursor, goal) = movement::down_by_rows(
6187 map,
6188 selection.start,
6189 action.lines,
6190 selection.goal,
6191 false,
6192 &text_layout_details,
6193 );
6194 selection.collapse_to(cursor, goal);
6195 });
6196 })
6197 }
6198
6199 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6200 let text_layout_details = &self.text_layout_details(cx);
6201 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6202 s.move_heads_with(|map, head, goal| {
6203 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6204 })
6205 })
6206 }
6207
6208 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, 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::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6213 })
6214 })
6215 }
6216
6217 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6218 if self.take_rename(true, cx).is_some() {
6219 return;
6220 }
6221
6222 if matches!(self.mode, EditorMode::SingleLine) {
6223 cx.propagate();
6224 return;
6225 }
6226
6227 let row_count = if let Some(row_count) = self.visible_line_count() {
6228 row_count as u32 - 1
6229 } else {
6230 return;
6231 };
6232
6233 let autoscroll = if action.center_cursor {
6234 Autoscroll::center()
6235 } else {
6236 Autoscroll::fit()
6237 };
6238
6239 let text_layout_details = &self.text_layout_details(cx);
6240
6241 self.change_selections(Some(autoscroll), cx, |s| {
6242 let line_mode = s.line_mode;
6243 s.move_with(|map, selection| {
6244 if !selection.is_empty() && !line_mode {
6245 selection.goal = SelectionGoal::None;
6246 }
6247 let (cursor, goal) = movement::up_by_rows(
6248 map,
6249 selection.end,
6250 row_count,
6251 selection.goal,
6252 false,
6253 &text_layout_details,
6254 );
6255 selection.collapse_to(cursor, goal);
6256 });
6257 });
6258 }
6259
6260 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6261 let text_layout_details = &self.text_layout_details(cx);
6262 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6263 s.move_heads_with(|map, head, goal| {
6264 movement::up(map, head, goal, false, &text_layout_details)
6265 })
6266 })
6267 }
6268
6269 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6270 self.take_rename(true, cx);
6271
6272 if self.mode == EditorMode::SingleLine {
6273 cx.propagate();
6274 return;
6275 }
6276
6277 let text_layout_details = &self.text_layout_details(cx);
6278 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6279 let line_mode = s.line_mode;
6280 s.move_with(|map, selection| {
6281 if !selection.is_empty() && !line_mode {
6282 selection.goal = SelectionGoal::None;
6283 }
6284 let (cursor, goal) = movement::down(
6285 map,
6286 selection.end,
6287 selection.goal,
6288 false,
6289 &text_layout_details,
6290 );
6291 selection.collapse_to(cursor, goal);
6292 });
6293 });
6294 }
6295
6296 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6297 if self.take_rename(true, cx).is_some() {
6298 return;
6299 }
6300
6301 if self
6302 .context_menu
6303 .write()
6304 .as_mut()
6305 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6306 .unwrap_or(false)
6307 {
6308 return;
6309 }
6310
6311 if matches!(self.mode, EditorMode::SingleLine) {
6312 cx.propagate();
6313 return;
6314 }
6315
6316 let row_count = if let Some(row_count) = self.visible_line_count() {
6317 row_count as u32 - 1
6318 } else {
6319 return;
6320 };
6321
6322 let autoscroll = if action.center_cursor {
6323 Autoscroll::center()
6324 } else {
6325 Autoscroll::fit()
6326 };
6327
6328 let text_layout_details = &self.text_layout_details(cx);
6329 self.change_selections(Some(autoscroll), cx, |s| {
6330 let line_mode = s.line_mode;
6331 s.move_with(|map, selection| {
6332 if !selection.is_empty() && !line_mode {
6333 selection.goal = SelectionGoal::None;
6334 }
6335 let (cursor, goal) = movement::down_by_rows(
6336 map,
6337 selection.end,
6338 row_count,
6339 selection.goal,
6340 false,
6341 &text_layout_details,
6342 );
6343 selection.collapse_to(cursor, goal);
6344 });
6345 });
6346 }
6347
6348 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6349 let text_layout_details = &self.text_layout_details(cx);
6350 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6351 s.move_heads_with(|map, head, goal| {
6352 movement::down(map, head, goal, false, &text_layout_details)
6353 })
6354 });
6355 }
6356
6357 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6358 if let Some(context_menu) = self.context_menu.write().as_mut() {
6359 context_menu.select_first(self.project.as_ref(), cx);
6360 }
6361 }
6362
6363 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6364 if let Some(context_menu) = self.context_menu.write().as_mut() {
6365 context_menu.select_prev(self.project.as_ref(), cx);
6366 }
6367 }
6368
6369 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6370 if let Some(context_menu) = self.context_menu.write().as_mut() {
6371 context_menu.select_next(self.project.as_ref(), cx);
6372 }
6373 }
6374
6375 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6376 if let Some(context_menu) = self.context_menu.write().as_mut() {
6377 context_menu.select_last(self.project.as_ref(), cx);
6378 }
6379 }
6380
6381 pub fn move_to_previous_word_start(
6382 &mut self,
6383 _: &MoveToPreviousWordStart,
6384 cx: &mut ViewContext<Self>,
6385 ) {
6386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6387 s.move_cursors_with(|map, head, _| {
6388 (
6389 movement::previous_word_start(map, head),
6390 SelectionGoal::None,
6391 )
6392 });
6393 })
6394 }
6395
6396 pub fn move_to_previous_subword_start(
6397 &mut self,
6398 _: &MoveToPreviousSubwordStart,
6399 cx: &mut ViewContext<Self>,
6400 ) {
6401 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6402 s.move_cursors_with(|map, head, _| {
6403 (
6404 movement::previous_subword_start(map, head),
6405 SelectionGoal::None,
6406 )
6407 });
6408 })
6409 }
6410
6411 pub fn select_to_previous_word_start(
6412 &mut self,
6413 _: &SelectToPreviousWordStart,
6414 cx: &mut ViewContext<Self>,
6415 ) {
6416 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6417 s.move_heads_with(|map, head, _| {
6418 (
6419 movement::previous_word_start(map, head),
6420 SelectionGoal::None,
6421 )
6422 });
6423 })
6424 }
6425
6426 pub fn select_to_previous_subword_start(
6427 &mut self,
6428 _: &SelectToPreviousSubwordStart,
6429 cx: &mut ViewContext<Self>,
6430 ) {
6431 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6432 s.move_heads_with(|map, head, _| {
6433 (
6434 movement::previous_subword_start(map, head),
6435 SelectionGoal::None,
6436 )
6437 });
6438 })
6439 }
6440
6441 pub fn delete_to_previous_word_start(
6442 &mut self,
6443 _: &DeleteToPreviousWordStart,
6444 cx: &mut ViewContext<Self>,
6445 ) {
6446 self.transact(cx, |this, cx| {
6447 this.select_autoclose_pair(cx);
6448 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6449 let line_mode = s.line_mode;
6450 s.move_with(|map, selection| {
6451 if selection.is_empty() && !line_mode {
6452 let cursor = movement::previous_word_start(map, selection.head());
6453 selection.set_head(cursor, SelectionGoal::None);
6454 }
6455 });
6456 });
6457 this.insert("", cx);
6458 });
6459 }
6460
6461 pub fn delete_to_previous_subword_start(
6462 &mut self,
6463 _: &DeleteToPreviousSubwordStart,
6464 cx: &mut ViewContext<Self>,
6465 ) {
6466 self.transact(cx, |this, cx| {
6467 this.select_autoclose_pair(cx);
6468 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6469 let line_mode = s.line_mode;
6470 s.move_with(|map, selection| {
6471 if selection.is_empty() && !line_mode {
6472 let cursor = movement::previous_subword_start(map, selection.head());
6473 selection.set_head(cursor, SelectionGoal::None);
6474 }
6475 });
6476 });
6477 this.insert("", cx);
6478 });
6479 }
6480
6481 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6482 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6483 s.move_cursors_with(|map, head, _| {
6484 (movement::next_word_end(map, head), SelectionGoal::None)
6485 });
6486 })
6487 }
6488
6489 pub fn move_to_next_subword_end(
6490 &mut self,
6491 _: &MoveToNextSubwordEnd,
6492 cx: &mut ViewContext<Self>,
6493 ) {
6494 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6495 s.move_cursors_with(|map, head, _| {
6496 (movement::next_subword_end(map, head), SelectionGoal::None)
6497 });
6498 })
6499 }
6500
6501 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6502 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6503 s.move_heads_with(|map, head, _| {
6504 (movement::next_word_end(map, head), SelectionGoal::None)
6505 });
6506 })
6507 }
6508
6509 pub fn select_to_next_subword_end(
6510 &mut self,
6511 _: &SelectToNextSubwordEnd,
6512 cx: &mut ViewContext<Self>,
6513 ) {
6514 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6515 s.move_heads_with(|map, head, _| {
6516 (movement::next_subword_end(map, head), SelectionGoal::None)
6517 });
6518 })
6519 }
6520
6521 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6522 self.transact(cx, |this, cx| {
6523 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6524 let line_mode = s.line_mode;
6525 s.move_with(|map, selection| {
6526 if selection.is_empty() && !line_mode {
6527 let cursor = movement::next_word_end(map, selection.head());
6528 selection.set_head(cursor, SelectionGoal::None);
6529 }
6530 });
6531 });
6532 this.insert("", cx);
6533 });
6534 }
6535
6536 pub fn delete_to_next_subword_end(
6537 &mut self,
6538 _: &DeleteToNextSubwordEnd,
6539 cx: &mut ViewContext<Self>,
6540 ) {
6541 self.transact(cx, |this, cx| {
6542 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6543 s.move_with(|map, selection| {
6544 if selection.is_empty() {
6545 let cursor = movement::next_subword_end(map, selection.head());
6546 selection.set_head(cursor, SelectionGoal::None);
6547 }
6548 });
6549 });
6550 this.insert("", cx);
6551 });
6552 }
6553
6554 pub fn move_to_beginning_of_line(
6555 &mut self,
6556 action: &MoveToBeginningOfLine,
6557 cx: &mut ViewContext<Self>,
6558 ) {
6559 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6560 s.move_cursors_with(|map, head, _| {
6561 (
6562 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6563 SelectionGoal::None,
6564 )
6565 });
6566 })
6567 }
6568
6569 pub fn select_to_beginning_of_line(
6570 &mut self,
6571 action: &SelectToBeginningOfLine,
6572 cx: &mut ViewContext<Self>,
6573 ) {
6574 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6575 s.move_heads_with(|map, head, _| {
6576 (
6577 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6578 SelectionGoal::None,
6579 )
6580 });
6581 });
6582 }
6583
6584 pub fn delete_to_beginning_of_line(
6585 &mut self,
6586 _: &DeleteToBeginningOfLine,
6587 cx: &mut ViewContext<Self>,
6588 ) {
6589 self.transact(cx, |this, cx| {
6590 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6591 s.move_with(|_, selection| {
6592 selection.reversed = true;
6593 });
6594 });
6595
6596 this.select_to_beginning_of_line(
6597 &SelectToBeginningOfLine {
6598 stop_at_soft_wraps: false,
6599 },
6600 cx,
6601 );
6602 this.backspace(&Backspace, cx);
6603 });
6604 }
6605
6606 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6607 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6608 s.move_cursors_with(|map, head, _| {
6609 (
6610 movement::line_end(map, head, action.stop_at_soft_wraps),
6611 SelectionGoal::None,
6612 )
6613 });
6614 })
6615 }
6616
6617 pub fn select_to_end_of_line(
6618 &mut self,
6619 action: &SelectToEndOfLine,
6620 cx: &mut ViewContext<Self>,
6621 ) {
6622 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6623 s.move_heads_with(|map, head, _| {
6624 (
6625 movement::line_end(map, head, action.stop_at_soft_wraps),
6626 SelectionGoal::None,
6627 )
6628 });
6629 })
6630 }
6631
6632 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6633 self.transact(cx, |this, cx| {
6634 this.select_to_end_of_line(
6635 &SelectToEndOfLine {
6636 stop_at_soft_wraps: false,
6637 },
6638 cx,
6639 );
6640 this.delete(&Delete, cx);
6641 });
6642 }
6643
6644 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6645 self.transact(cx, |this, cx| {
6646 this.select_to_end_of_line(
6647 &SelectToEndOfLine {
6648 stop_at_soft_wraps: false,
6649 },
6650 cx,
6651 );
6652 this.cut(&Cut, cx);
6653 });
6654 }
6655
6656 pub fn move_to_start_of_paragraph(
6657 &mut self,
6658 _: &MoveToStartOfParagraph,
6659 cx: &mut ViewContext<Self>,
6660 ) {
6661 if matches!(self.mode, EditorMode::SingleLine) {
6662 cx.propagate();
6663 return;
6664 }
6665
6666 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6667 s.move_with(|map, selection| {
6668 selection.collapse_to(
6669 movement::start_of_paragraph(map, selection.head(), 1),
6670 SelectionGoal::None,
6671 )
6672 });
6673 })
6674 }
6675
6676 pub fn move_to_end_of_paragraph(
6677 &mut self,
6678 _: &MoveToEndOfParagraph,
6679 cx: &mut ViewContext<Self>,
6680 ) {
6681 if matches!(self.mode, EditorMode::SingleLine) {
6682 cx.propagate();
6683 return;
6684 }
6685
6686 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6687 s.move_with(|map, selection| {
6688 selection.collapse_to(
6689 movement::end_of_paragraph(map, selection.head(), 1),
6690 SelectionGoal::None,
6691 )
6692 });
6693 })
6694 }
6695
6696 pub fn select_to_start_of_paragraph(
6697 &mut self,
6698 _: &SelectToStartOfParagraph,
6699 cx: &mut ViewContext<Self>,
6700 ) {
6701 if matches!(self.mode, EditorMode::SingleLine) {
6702 cx.propagate();
6703 return;
6704 }
6705
6706 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6707 s.move_heads_with(|map, head, _| {
6708 (
6709 movement::start_of_paragraph(map, head, 1),
6710 SelectionGoal::None,
6711 )
6712 });
6713 })
6714 }
6715
6716 pub fn select_to_end_of_paragraph(
6717 &mut self,
6718 _: &SelectToEndOfParagraph,
6719 cx: &mut ViewContext<Self>,
6720 ) {
6721 if matches!(self.mode, EditorMode::SingleLine) {
6722 cx.propagate();
6723 return;
6724 }
6725
6726 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6727 s.move_heads_with(|map, head, _| {
6728 (
6729 movement::end_of_paragraph(map, head, 1),
6730 SelectionGoal::None,
6731 )
6732 });
6733 })
6734 }
6735
6736 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6737 if matches!(self.mode, EditorMode::SingleLine) {
6738 cx.propagate();
6739 return;
6740 }
6741
6742 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6743 s.select_ranges(vec![0..0]);
6744 });
6745 }
6746
6747 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6748 let mut selection = self.selections.last::<Point>(cx);
6749 selection.set_head(Point::zero(), SelectionGoal::None);
6750
6751 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6752 s.select(vec![selection]);
6753 });
6754 }
6755
6756 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6757 if matches!(self.mode, EditorMode::SingleLine) {
6758 cx.propagate();
6759 return;
6760 }
6761
6762 let cursor = self.buffer.read(cx).read(cx).len();
6763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6764 s.select_ranges(vec![cursor..cursor])
6765 });
6766 }
6767
6768 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6769 self.nav_history = nav_history;
6770 }
6771
6772 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6773 self.nav_history.as_ref()
6774 }
6775
6776 fn push_to_nav_history(
6777 &mut self,
6778 cursor_anchor: Anchor,
6779 new_position: Option<Point>,
6780 cx: &mut ViewContext<Self>,
6781 ) {
6782 if let Some(nav_history) = self.nav_history.as_mut() {
6783 let buffer = self.buffer.read(cx).read(cx);
6784 let cursor_position = cursor_anchor.to_point(&buffer);
6785 let scroll_state = self.scroll_manager.anchor();
6786 let scroll_top_row = scroll_state.top_row(&buffer);
6787 drop(buffer);
6788
6789 if let Some(new_position) = new_position {
6790 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6791 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6792 return;
6793 }
6794 }
6795
6796 nav_history.push(
6797 Some(NavigationData {
6798 cursor_anchor,
6799 cursor_position,
6800 scroll_anchor: scroll_state,
6801 scroll_top_row,
6802 }),
6803 cx,
6804 );
6805 }
6806 }
6807
6808 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6809 let buffer = self.buffer.read(cx).snapshot(cx);
6810 let mut selection = self.selections.first::<usize>(cx);
6811 selection.set_head(buffer.len(), SelectionGoal::None);
6812 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6813 s.select(vec![selection]);
6814 });
6815 }
6816
6817 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6818 let end = self.buffer.read(cx).read(cx).len();
6819 self.change_selections(None, cx, |s| {
6820 s.select_ranges(vec![0..end]);
6821 });
6822 }
6823
6824 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6825 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6826 let mut selections = self.selections.all::<Point>(cx);
6827 let max_point = display_map.buffer_snapshot.max_point();
6828 for selection in &mut selections {
6829 let rows = selection.spanned_rows(true, &display_map);
6830 selection.start = Point::new(rows.start, 0);
6831 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6832 selection.reversed = false;
6833 }
6834 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6835 s.select(selections);
6836 });
6837 }
6838
6839 pub fn split_selection_into_lines(
6840 &mut self,
6841 _: &SplitSelectionIntoLines,
6842 cx: &mut ViewContext<Self>,
6843 ) {
6844 let mut to_unfold = Vec::new();
6845 let mut new_selection_ranges = Vec::new();
6846 {
6847 let selections = self.selections.all::<Point>(cx);
6848 let buffer = self.buffer.read(cx).read(cx);
6849 for selection in selections {
6850 for row in selection.start.row..selection.end.row {
6851 let cursor = Point::new(row, buffer.line_len(row));
6852 new_selection_ranges.push(cursor..cursor);
6853 }
6854 new_selection_ranges.push(selection.end..selection.end);
6855 to_unfold.push(selection.start..selection.end);
6856 }
6857 }
6858 self.unfold_ranges(to_unfold, true, true, cx);
6859 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6860 s.select_ranges(new_selection_ranges);
6861 });
6862 }
6863
6864 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6865 self.add_selection(true, cx);
6866 }
6867
6868 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6869 self.add_selection(false, cx);
6870 }
6871
6872 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6873 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6874 let mut selections = self.selections.all::<Point>(cx);
6875 let text_layout_details = self.text_layout_details(cx);
6876 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6877 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6878 let range = oldest_selection.display_range(&display_map).sorted();
6879
6880 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6881 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6882 let positions = start_x.min(end_x)..start_x.max(end_x);
6883
6884 selections.clear();
6885 let mut stack = Vec::new();
6886 for row in range.start.row()..=range.end.row() {
6887 if let Some(selection) = self.selections.build_columnar_selection(
6888 &display_map,
6889 row,
6890 &positions,
6891 oldest_selection.reversed,
6892 &text_layout_details,
6893 ) {
6894 stack.push(selection.id);
6895 selections.push(selection);
6896 }
6897 }
6898
6899 if above {
6900 stack.reverse();
6901 }
6902
6903 AddSelectionsState { above, stack }
6904 });
6905
6906 let last_added_selection = *state.stack.last().unwrap();
6907 let mut new_selections = Vec::new();
6908 if above == state.above {
6909 let end_row = if above {
6910 0
6911 } else {
6912 display_map.max_point().row()
6913 };
6914
6915 'outer: for selection in selections {
6916 if selection.id == last_added_selection {
6917 let range = selection.display_range(&display_map).sorted();
6918 debug_assert_eq!(range.start.row(), range.end.row());
6919 let mut row = range.start.row();
6920 let positions =
6921 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6922 px(start)..px(end)
6923 } else {
6924 let start_x =
6925 display_map.x_for_display_point(range.start, &text_layout_details);
6926 let end_x =
6927 display_map.x_for_display_point(range.end, &text_layout_details);
6928 start_x.min(end_x)..start_x.max(end_x)
6929 };
6930
6931 while row != end_row {
6932 if above {
6933 row -= 1;
6934 } else {
6935 row += 1;
6936 }
6937
6938 if let Some(new_selection) = self.selections.build_columnar_selection(
6939 &display_map,
6940 row,
6941 &positions,
6942 selection.reversed,
6943 &text_layout_details,
6944 ) {
6945 state.stack.push(new_selection.id);
6946 if above {
6947 new_selections.push(new_selection);
6948 new_selections.push(selection);
6949 } else {
6950 new_selections.push(selection);
6951 new_selections.push(new_selection);
6952 }
6953
6954 continue 'outer;
6955 }
6956 }
6957 }
6958
6959 new_selections.push(selection);
6960 }
6961 } else {
6962 new_selections = selections;
6963 new_selections.retain(|s| s.id != last_added_selection);
6964 state.stack.pop();
6965 }
6966
6967 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6968 s.select(new_selections);
6969 });
6970 if state.stack.len() > 1 {
6971 self.add_selections_state = Some(state);
6972 }
6973 }
6974
6975 pub fn select_next_match_internal(
6976 &mut self,
6977 display_map: &DisplaySnapshot,
6978 replace_newest: bool,
6979 autoscroll: Option<Autoscroll>,
6980 cx: &mut ViewContext<Self>,
6981 ) -> Result<()> {
6982 fn select_next_match_ranges(
6983 this: &mut Editor,
6984 range: Range<usize>,
6985 replace_newest: bool,
6986 auto_scroll: Option<Autoscroll>,
6987 cx: &mut ViewContext<Editor>,
6988 ) {
6989 this.unfold_ranges([range.clone()], false, true, cx);
6990 this.change_selections(auto_scroll, cx, |s| {
6991 if replace_newest {
6992 s.delete(s.newest_anchor().id);
6993 }
6994 s.insert_range(range.clone());
6995 });
6996 }
6997
6998 let buffer = &display_map.buffer_snapshot;
6999 let mut selections = self.selections.all::<usize>(cx);
7000 if let Some(mut select_next_state) = self.select_next_state.take() {
7001 let query = &select_next_state.query;
7002 if !select_next_state.done {
7003 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7004 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7005 let mut next_selected_range = None;
7006
7007 let bytes_after_last_selection =
7008 buffer.bytes_in_range(last_selection.end..buffer.len());
7009 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7010 let query_matches = query
7011 .stream_find_iter(bytes_after_last_selection)
7012 .map(|result| (last_selection.end, result))
7013 .chain(
7014 query
7015 .stream_find_iter(bytes_before_first_selection)
7016 .map(|result| (0, result)),
7017 );
7018
7019 for (start_offset, query_match) in query_matches {
7020 let query_match = query_match.unwrap(); // can only fail due to I/O
7021 let offset_range =
7022 start_offset + query_match.start()..start_offset + query_match.end();
7023 let display_range = offset_range.start.to_display_point(&display_map)
7024 ..offset_range.end.to_display_point(&display_map);
7025
7026 if !select_next_state.wordwise
7027 || (!movement::is_inside_word(&display_map, display_range.start)
7028 && !movement::is_inside_word(&display_map, display_range.end))
7029 {
7030 // TODO: This is n^2, because we might check all the selections
7031 if !selections
7032 .iter()
7033 .any(|selection| selection.range().overlaps(&offset_range))
7034 {
7035 next_selected_range = Some(offset_range);
7036 break;
7037 }
7038 }
7039 }
7040
7041 if let Some(next_selected_range) = next_selected_range {
7042 select_next_match_ranges(
7043 self,
7044 next_selected_range,
7045 replace_newest,
7046 autoscroll,
7047 cx,
7048 );
7049 } else {
7050 select_next_state.done = true;
7051 }
7052 }
7053
7054 self.select_next_state = Some(select_next_state);
7055 } else {
7056 let mut only_carets = true;
7057 let mut same_text_selected = true;
7058 let mut selected_text = None;
7059
7060 let mut selections_iter = selections.iter().peekable();
7061 while let Some(selection) = selections_iter.next() {
7062 if selection.start != selection.end {
7063 only_carets = false;
7064 }
7065
7066 if same_text_selected {
7067 if selected_text.is_none() {
7068 selected_text =
7069 Some(buffer.text_for_range(selection.range()).collect::<String>());
7070 }
7071
7072 if let Some(next_selection) = selections_iter.peek() {
7073 if next_selection.range().len() == selection.range().len() {
7074 let next_selected_text = buffer
7075 .text_for_range(next_selection.range())
7076 .collect::<String>();
7077 if Some(next_selected_text) != selected_text {
7078 same_text_selected = false;
7079 selected_text = None;
7080 }
7081 } else {
7082 same_text_selected = false;
7083 selected_text = None;
7084 }
7085 }
7086 }
7087 }
7088
7089 if only_carets {
7090 for selection in &mut selections {
7091 let word_range = movement::surrounding_word(
7092 &display_map,
7093 selection.start.to_display_point(&display_map),
7094 );
7095 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7096 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7097 selection.goal = SelectionGoal::None;
7098 selection.reversed = false;
7099 select_next_match_ranges(
7100 self,
7101 selection.start..selection.end,
7102 replace_newest,
7103 autoscroll,
7104 cx,
7105 );
7106 }
7107
7108 if selections.len() == 1 {
7109 let selection = selections
7110 .last()
7111 .expect("ensured that there's only one selection");
7112 let query = buffer
7113 .text_for_range(selection.start..selection.end)
7114 .collect::<String>();
7115 let is_empty = query.is_empty();
7116 let select_state = SelectNextState {
7117 query: AhoCorasick::new(&[query])?,
7118 wordwise: true,
7119 done: is_empty,
7120 };
7121 self.select_next_state = Some(select_state);
7122 } else {
7123 self.select_next_state = None;
7124 }
7125 } else if let Some(selected_text) = selected_text {
7126 self.select_next_state = Some(SelectNextState {
7127 query: AhoCorasick::new(&[selected_text])?,
7128 wordwise: false,
7129 done: false,
7130 });
7131 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7132 }
7133 }
7134 Ok(())
7135 }
7136
7137 pub fn select_all_matches(
7138 &mut self,
7139 _action: &SelectAllMatches,
7140 cx: &mut ViewContext<Self>,
7141 ) -> Result<()> {
7142 self.push_to_selection_history();
7143 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7144
7145 self.select_next_match_internal(&display_map, false, None, cx)?;
7146 let Some(select_next_state) = self.select_next_state.as_mut() else {
7147 return Ok(());
7148 };
7149 if select_next_state.done {
7150 return Ok(());
7151 }
7152
7153 let mut new_selections = self.selections.all::<usize>(cx);
7154
7155 let buffer = &display_map.buffer_snapshot;
7156 let query_matches = select_next_state
7157 .query
7158 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7159
7160 for query_match in query_matches {
7161 let query_match = query_match.unwrap(); // can only fail due to I/O
7162 let offset_range = query_match.start()..query_match.end();
7163 let display_range = offset_range.start.to_display_point(&display_map)
7164 ..offset_range.end.to_display_point(&display_map);
7165
7166 if !select_next_state.wordwise
7167 || (!movement::is_inside_word(&display_map, display_range.start)
7168 && !movement::is_inside_word(&display_map, display_range.end))
7169 {
7170 self.selections.change_with(cx, |selections| {
7171 new_selections.push(Selection {
7172 id: selections.new_selection_id(),
7173 start: offset_range.start,
7174 end: offset_range.end,
7175 reversed: false,
7176 goal: SelectionGoal::None,
7177 });
7178 });
7179 }
7180 }
7181
7182 new_selections.sort_by_key(|selection| selection.start);
7183 let mut ix = 0;
7184 while ix + 1 < new_selections.len() {
7185 let current_selection = &new_selections[ix];
7186 let next_selection = &new_selections[ix + 1];
7187 if current_selection.range().overlaps(&next_selection.range()) {
7188 if current_selection.id < next_selection.id {
7189 new_selections.remove(ix + 1);
7190 } else {
7191 new_selections.remove(ix);
7192 }
7193 } else {
7194 ix += 1;
7195 }
7196 }
7197
7198 select_next_state.done = true;
7199 self.unfold_ranges(
7200 new_selections.iter().map(|selection| selection.range()),
7201 false,
7202 false,
7203 cx,
7204 );
7205 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7206 selections.select(new_selections)
7207 });
7208
7209 Ok(())
7210 }
7211
7212 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7213 self.push_to_selection_history();
7214 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7215 self.select_next_match_internal(
7216 &display_map,
7217 action.replace_newest,
7218 Some(Autoscroll::newest()),
7219 cx,
7220 )?;
7221 Ok(())
7222 }
7223
7224 pub fn select_previous(
7225 &mut self,
7226 action: &SelectPrevious,
7227 cx: &mut ViewContext<Self>,
7228 ) -> Result<()> {
7229 self.push_to_selection_history();
7230 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7231 let buffer = &display_map.buffer_snapshot;
7232 let mut selections = self.selections.all::<usize>(cx);
7233 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7234 let query = &select_prev_state.query;
7235 if !select_prev_state.done {
7236 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7237 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7238 let mut next_selected_range = None;
7239 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7240 let bytes_before_last_selection =
7241 buffer.reversed_bytes_in_range(0..last_selection.start);
7242 let bytes_after_first_selection =
7243 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7244 let query_matches = query
7245 .stream_find_iter(bytes_before_last_selection)
7246 .map(|result| (last_selection.start, result))
7247 .chain(
7248 query
7249 .stream_find_iter(bytes_after_first_selection)
7250 .map(|result| (buffer.len(), result)),
7251 );
7252 for (end_offset, query_match) in query_matches {
7253 let query_match = query_match.unwrap(); // can only fail due to I/O
7254 let offset_range =
7255 end_offset - query_match.end()..end_offset - query_match.start();
7256 let display_range = offset_range.start.to_display_point(&display_map)
7257 ..offset_range.end.to_display_point(&display_map);
7258
7259 if !select_prev_state.wordwise
7260 || (!movement::is_inside_word(&display_map, display_range.start)
7261 && !movement::is_inside_word(&display_map, display_range.end))
7262 {
7263 next_selected_range = Some(offset_range);
7264 break;
7265 }
7266 }
7267
7268 if let Some(next_selected_range) = next_selected_range {
7269 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7270 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7271 if action.replace_newest {
7272 s.delete(s.newest_anchor().id);
7273 }
7274 s.insert_range(next_selected_range);
7275 });
7276 } else {
7277 select_prev_state.done = true;
7278 }
7279 }
7280
7281 self.select_prev_state = Some(select_prev_state);
7282 } else {
7283 let mut only_carets = true;
7284 let mut same_text_selected = true;
7285 let mut selected_text = None;
7286
7287 let mut selections_iter = selections.iter().peekable();
7288 while let Some(selection) = selections_iter.next() {
7289 if selection.start != selection.end {
7290 only_carets = false;
7291 }
7292
7293 if same_text_selected {
7294 if selected_text.is_none() {
7295 selected_text =
7296 Some(buffer.text_for_range(selection.range()).collect::<String>());
7297 }
7298
7299 if let Some(next_selection) = selections_iter.peek() {
7300 if next_selection.range().len() == selection.range().len() {
7301 let next_selected_text = buffer
7302 .text_for_range(next_selection.range())
7303 .collect::<String>();
7304 if Some(next_selected_text) != selected_text {
7305 same_text_selected = false;
7306 selected_text = None;
7307 }
7308 } else {
7309 same_text_selected = false;
7310 selected_text = None;
7311 }
7312 }
7313 }
7314 }
7315
7316 if only_carets {
7317 for selection in &mut selections {
7318 let word_range = movement::surrounding_word(
7319 &display_map,
7320 selection.start.to_display_point(&display_map),
7321 );
7322 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7323 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7324 selection.goal = SelectionGoal::None;
7325 selection.reversed = false;
7326 }
7327 if selections.len() == 1 {
7328 let selection = selections
7329 .last()
7330 .expect("ensured that there's only one selection");
7331 let query = buffer
7332 .text_for_range(selection.start..selection.end)
7333 .collect::<String>();
7334 let is_empty = query.is_empty();
7335 let select_state = SelectNextState {
7336 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7337 wordwise: true,
7338 done: is_empty,
7339 };
7340 self.select_prev_state = Some(select_state);
7341 } else {
7342 self.select_prev_state = None;
7343 }
7344
7345 self.unfold_ranges(
7346 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7347 false,
7348 true,
7349 cx,
7350 );
7351 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7352 s.select(selections);
7353 });
7354 } else if let Some(selected_text) = selected_text {
7355 self.select_prev_state = Some(SelectNextState {
7356 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7357 wordwise: false,
7358 done: false,
7359 });
7360 self.select_previous(action, cx)?;
7361 }
7362 }
7363 Ok(())
7364 }
7365
7366 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7367 let text_layout_details = &self.text_layout_details(cx);
7368 self.transact(cx, |this, cx| {
7369 let mut selections = this.selections.all::<Point>(cx);
7370 let mut edits = Vec::new();
7371 let mut selection_edit_ranges = Vec::new();
7372 let mut last_toggled_row = None;
7373 let snapshot = this.buffer.read(cx).read(cx);
7374 let empty_str: Arc<str> = "".into();
7375 let mut suffixes_inserted = Vec::new();
7376
7377 fn comment_prefix_range(
7378 snapshot: &MultiBufferSnapshot,
7379 row: u32,
7380 comment_prefix: &str,
7381 comment_prefix_whitespace: &str,
7382 ) -> Range<Point> {
7383 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7384
7385 let mut line_bytes = snapshot
7386 .bytes_in_range(start..snapshot.max_point())
7387 .flatten()
7388 .copied();
7389
7390 // If this line currently begins with the line comment prefix, then record
7391 // the range containing the prefix.
7392 if line_bytes
7393 .by_ref()
7394 .take(comment_prefix.len())
7395 .eq(comment_prefix.bytes())
7396 {
7397 // Include any whitespace that matches the comment prefix.
7398 let matching_whitespace_len = line_bytes
7399 .zip(comment_prefix_whitespace.bytes())
7400 .take_while(|(a, b)| a == b)
7401 .count() as u32;
7402 let end = Point::new(
7403 start.row,
7404 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7405 );
7406 start..end
7407 } else {
7408 start..start
7409 }
7410 }
7411
7412 fn comment_suffix_range(
7413 snapshot: &MultiBufferSnapshot,
7414 row: u32,
7415 comment_suffix: &str,
7416 comment_suffix_has_leading_space: bool,
7417 ) -> Range<Point> {
7418 let end = Point::new(row, snapshot.line_len(row));
7419 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7420
7421 let mut line_end_bytes = snapshot
7422 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7423 .flatten()
7424 .copied();
7425
7426 let leading_space_len = if suffix_start_column > 0
7427 && line_end_bytes.next() == Some(b' ')
7428 && comment_suffix_has_leading_space
7429 {
7430 1
7431 } else {
7432 0
7433 };
7434
7435 // If this line currently begins with the line comment prefix, then record
7436 // the range containing the prefix.
7437 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7438 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7439 start..end
7440 } else {
7441 end..end
7442 }
7443 }
7444
7445 // TODO: Handle selections that cross excerpts
7446 for selection in &mut selections {
7447 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7448 let language = if let Some(language) =
7449 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7450 {
7451 language
7452 } else {
7453 continue;
7454 };
7455
7456 selection_edit_ranges.clear();
7457
7458 // If multiple selections contain a given row, avoid processing that
7459 // row more than once.
7460 let mut start_row = selection.start.row;
7461 if last_toggled_row == Some(start_row) {
7462 start_row += 1;
7463 }
7464 let end_row =
7465 if selection.end.row > selection.start.row && selection.end.column == 0 {
7466 selection.end.row - 1
7467 } else {
7468 selection.end.row
7469 };
7470 last_toggled_row = Some(end_row);
7471
7472 if start_row > end_row {
7473 continue;
7474 }
7475
7476 // If the language has line comments, toggle those.
7477 let full_comment_prefixes = language.line_comment_prefixes();
7478 if !full_comment_prefixes.is_empty() {
7479 let first_prefix = full_comment_prefixes
7480 .first()
7481 .expect("prefixes is non-empty");
7482 let prefix_trimmed_lengths = full_comment_prefixes
7483 .iter()
7484 .map(|p| p.trim_end_matches(' ').len())
7485 .collect::<SmallVec<[usize; 4]>>();
7486
7487 let mut all_selection_lines_are_comments = true;
7488
7489 for row in start_row..=end_row {
7490 if start_row < end_row && snapshot.is_line_blank(row) {
7491 continue;
7492 }
7493
7494 let prefix_range = full_comment_prefixes
7495 .iter()
7496 .zip(prefix_trimmed_lengths.iter().copied())
7497 .map(|(prefix, trimmed_prefix_len)| {
7498 comment_prefix_range(
7499 snapshot.deref(),
7500 row,
7501 &prefix[..trimmed_prefix_len],
7502 &prefix[trimmed_prefix_len..],
7503 )
7504 })
7505 .max_by_key(|range| range.end.column - range.start.column)
7506 .expect("prefixes is non-empty");
7507
7508 if prefix_range.is_empty() {
7509 all_selection_lines_are_comments = false;
7510 }
7511
7512 selection_edit_ranges.push(prefix_range);
7513 }
7514
7515 if all_selection_lines_are_comments {
7516 edits.extend(
7517 selection_edit_ranges
7518 .iter()
7519 .cloned()
7520 .map(|range| (range, empty_str.clone())),
7521 );
7522 } else {
7523 let min_column = selection_edit_ranges
7524 .iter()
7525 .map(|range| range.start.column)
7526 .min()
7527 .unwrap_or(0);
7528 edits.extend(selection_edit_ranges.iter().map(|range| {
7529 let position = Point::new(range.start.row, min_column);
7530 (position..position, first_prefix.clone())
7531 }));
7532 }
7533 } else if let Some((full_comment_prefix, comment_suffix)) =
7534 language.block_comment_delimiters()
7535 {
7536 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7537 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7538 let prefix_range = comment_prefix_range(
7539 snapshot.deref(),
7540 start_row,
7541 comment_prefix,
7542 comment_prefix_whitespace,
7543 );
7544 let suffix_range = comment_suffix_range(
7545 snapshot.deref(),
7546 end_row,
7547 comment_suffix.trim_start_matches(' '),
7548 comment_suffix.starts_with(' '),
7549 );
7550
7551 if prefix_range.is_empty() || suffix_range.is_empty() {
7552 edits.push((
7553 prefix_range.start..prefix_range.start,
7554 full_comment_prefix.clone(),
7555 ));
7556 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7557 suffixes_inserted.push((end_row, comment_suffix.len()));
7558 } else {
7559 edits.push((prefix_range, empty_str.clone()));
7560 edits.push((suffix_range, empty_str.clone()));
7561 }
7562 } else {
7563 continue;
7564 }
7565 }
7566
7567 drop(snapshot);
7568 this.buffer.update(cx, |buffer, cx| {
7569 buffer.edit(edits, None, cx);
7570 });
7571
7572 // Adjust selections so that they end before any comment suffixes that
7573 // were inserted.
7574 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7575 let mut selections = this.selections.all::<Point>(cx);
7576 let snapshot = this.buffer.read(cx).read(cx);
7577 for selection in &mut selections {
7578 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7579 match row.cmp(&selection.end.row) {
7580 Ordering::Less => {
7581 suffixes_inserted.next();
7582 continue;
7583 }
7584 Ordering::Greater => break,
7585 Ordering::Equal => {
7586 if selection.end.column == snapshot.line_len(row) {
7587 if selection.is_empty() {
7588 selection.start.column -= suffix_len as u32;
7589 }
7590 selection.end.column -= suffix_len as u32;
7591 }
7592 break;
7593 }
7594 }
7595 }
7596 }
7597
7598 drop(snapshot);
7599 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7600
7601 let selections = this.selections.all::<Point>(cx);
7602 let selections_on_single_row = selections.windows(2).all(|selections| {
7603 selections[0].start.row == selections[1].start.row
7604 && selections[0].end.row == selections[1].end.row
7605 && selections[0].start.row == selections[0].end.row
7606 });
7607 let selections_selecting = selections
7608 .iter()
7609 .any(|selection| selection.start != selection.end);
7610 let advance_downwards = action.advance_downwards
7611 && selections_on_single_row
7612 && !selections_selecting
7613 && this.mode != EditorMode::SingleLine;
7614
7615 if advance_downwards {
7616 let snapshot = this.buffer.read(cx).snapshot(cx);
7617
7618 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7619 s.move_cursors_with(|display_snapshot, display_point, _| {
7620 let mut point = display_point.to_point(display_snapshot);
7621 point.row += 1;
7622 point = snapshot.clip_point(point, Bias::Left);
7623 let display_point = point.to_display_point(display_snapshot);
7624 let goal = SelectionGoal::HorizontalPosition(
7625 display_snapshot
7626 .x_for_display_point(display_point, &text_layout_details)
7627 .into(),
7628 );
7629 (display_point, goal)
7630 })
7631 });
7632 }
7633 });
7634 }
7635
7636 pub fn select_larger_syntax_node(
7637 &mut self,
7638 _: &SelectLargerSyntaxNode,
7639 cx: &mut ViewContext<Self>,
7640 ) {
7641 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7642 let buffer = self.buffer.read(cx).snapshot(cx);
7643 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7644
7645 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7646 let mut selected_larger_node = false;
7647 let new_selections = old_selections
7648 .iter()
7649 .map(|selection| {
7650 let old_range = selection.start..selection.end;
7651 let mut new_range = old_range.clone();
7652 while let Some(containing_range) =
7653 buffer.range_for_syntax_ancestor(new_range.clone())
7654 {
7655 new_range = containing_range;
7656 if !display_map.intersects_fold(new_range.start)
7657 && !display_map.intersects_fold(new_range.end)
7658 {
7659 break;
7660 }
7661 }
7662
7663 selected_larger_node |= new_range != old_range;
7664 Selection {
7665 id: selection.id,
7666 start: new_range.start,
7667 end: new_range.end,
7668 goal: SelectionGoal::None,
7669 reversed: selection.reversed,
7670 }
7671 })
7672 .collect::<Vec<_>>();
7673
7674 if selected_larger_node {
7675 stack.push(old_selections);
7676 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7677 s.select(new_selections);
7678 });
7679 }
7680 self.select_larger_syntax_node_stack = stack;
7681 }
7682
7683 pub fn select_smaller_syntax_node(
7684 &mut self,
7685 _: &SelectSmallerSyntaxNode,
7686 cx: &mut ViewContext<Self>,
7687 ) {
7688 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7689 if let Some(selections) = stack.pop() {
7690 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7691 s.select(selections.to_vec());
7692 });
7693 }
7694 self.select_larger_syntax_node_stack = stack;
7695 }
7696
7697 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7698 let project = self.project.clone();
7699 cx.spawn(|this, mut cx| async move {
7700 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7701 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7702 }) else {
7703 return;
7704 };
7705
7706 let Some(project) = project else {
7707 return;
7708 };
7709 if project
7710 .update(&mut cx, |this, _| this.is_remote())
7711 .unwrap_or(true)
7712 {
7713 // Do not display any test indicators in remote projects.
7714 return;
7715 }
7716 let new_rows =
7717 cx.background_executor()
7718 .spawn({
7719 let snapshot = display_snapshot.clone();
7720 async move {
7721 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7722 }
7723 })
7724 .await;
7725 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7726
7727 this.update(&mut cx, |this, _| {
7728 this.clear_tasks();
7729 for (row, tasks) in rows {
7730 this.insert_tasks(row, tasks);
7731 }
7732 })
7733 .ok();
7734 })
7735 }
7736 fn fetch_runnable_ranges(
7737 snapshot: &DisplaySnapshot,
7738 range: Range<Anchor>,
7739 ) -> Vec<(Range<usize>, Runnable)> {
7740 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7741 }
7742
7743 fn runnable_rows(
7744 project: Model<Project>,
7745 snapshot: DisplaySnapshot,
7746 runnable_ranges: Vec<(Range<usize>, Runnable)>,
7747 mut cx: AsyncWindowContext,
7748 ) -> Vec<(u32, RunnableTasks)> {
7749 runnable_ranges
7750 .into_iter()
7751 .filter_map(|(multi_buffer_range, mut runnable)| {
7752 let (tasks, _) = cx
7753 .update(|cx| Self::resolve_runnable(project.clone(), &mut runnable, cx))
7754 .ok()?;
7755 if tasks.is_empty() {
7756 return None;
7757 }
7758 let point = multi_buffer_range.start.to_point(&snapshot.buffer_snapshot);
7759 Some((
7760 point.row,
7761 RunnableTasks {
7762 templates: tasks,
7763 column: point.column,
7764 },
7765 ))
7766 })
7767 .collect()
7768 }
7769
7770 fn resolve_runnable(
7771 project: Model<Project>,
7772 runnable: &mut Runnable,
7773 cx: &WindowContext<'_>,
7774 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7775 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7776 let worktree_id = project
7777 .buffer_for_id(runnable.buffer)
7778 .and_then(|buffer| buffer.read(cx).file())
7779 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7780
7781 (project.task_inventory().clone(), worktree_id)
7782 });
7783
7784 let inventory = inventory.read(cx);
7785 let tags = mem::take(&mut runnable.tags);
7786 let mut tags: Vec<_> = tags
7787 .into_iter()
7788 .flat_map(|tag| {
7789 let tag = tag.0.clone();
7790 inventory
7791 .list_tasks(Some(runnable.language.clone()), worktree_id)
7792 .into_iter()
7793 .filter(move |(_, template)| {
7794 template.tags.iter().any(|source_tag| source_tag == &tag)
7795 })
7796 })
7797 .sorted_by_key(|(kind, _)| kind.to_owned())
7798 .collect();
7799 if let Some((leading_tag_source, _)) = tags.first() {
7800 // Strongest source wins; if we have worktree tag binding, prefer that to
7801 // global and language bindings;
7802 // if we have a global binding, prefer that to language binding.
7803 let first_mismatch = tags
7804 .iter()
7805 .position(|(tag_source, _)| tag_source != leading_tag_source);
7806 if let Some(index) = first_mismatch {
7807 tags.truncate(index);
7808 }
7809 }
7810
7811 (tags, worktree_id)
7812 }
7813
7814 pub fn move_to_enclosing_bracket(
7815 &mut self,
7816 _: &MoveToEnclosingBracket,
7817 cx: &mut ViewContext<Self>,
7818 ) {
7819 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7820 s.move_offsets_with(|snapshot, selection| {
7821 let Some(enclosing_bracket_ranges) =
7822 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7823 else {
7824 return;
7825 };
7826
7827 let mut best_length = usize::MAX;
7828 let mut best_inside = false;
7829 let mut best_in_bracket_range = false;
7830 let mut best_destination = None;
7831 for (open, close) in enclosing_bracket_ranges {
7832 let close = close.to_inclusive();
7833 let length = close.end() - open.start;
7834 let inside = selection.start >= open.end && selection.end <= *close.start();
7835 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7836 || close.contains(&selection.head());
7837
7838 // If best is next to a bracket and current isn't, skip
7839 if !in_bracket_range && best_in_bracket_range {
7840 continue;
7841 }
7842
7843 // Prefer smaller lengths unless best is inside and current isn't
7844 if length > best_length && (best_inside || !inside) {
7845 continue;
7846 }
7847
7848 best_length = length;
7849 best_inside = inside;
7850 best_in_bracket_range = in_bracket_range;
7851 best_destination = Some(
7852 if close.contains(&selection.start) && close.contains(&selection.end) {
7853 if inside {
7854 open.end
7855 } else {
7856 open.start
7857 }
7858 } else {
7859 if inside {
7860 *close.start()
7861 } else {
7862 *close.end()
7863 }
7864 },
7865 );
7866 }
7867
7868 if let Some(destination) = best_destination {
7869 selection.collapse_to(destination, SelectionGoal::None);
7870 }
7871 })
7872 });
7873 }
7874
7875 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7876 self.end_selection(cx);
7877 self.selection_history.mode = SelectionHistoryMode::Undoing;
7878 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7879 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7880 self.select_next_state = entry.select_next_state;
7881 self.select_prev_state = entry.select_prev_state;
7882 self.add_selections_state = entry.add_selections_state;
7883 self.request_autoscroll(Autoscroll::newest(), cx);
7884 }
7885 self.selection_history.mode = SelectionHistoryMode::Normal;
7886 }
7887
7888 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7889 self.end_selection(cx);
7890 self.selection_history.mode = SelectionHistoryMode::Redoing;
7891 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7892 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7893 self.select_next_state = entry.select_next_state;
7894 self.select_prev_state = entry.select_prev_state;
7895 self.add_selections_state = entry.add_selections_state;
7896 self.request_autoscroll(Autoscroll::newest(), cx);
7897 }
7898 self.selection_history.mode = SelectionHistoryMode::Normal;
7899 }
7900
7901 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7902 let selections = self.selections.disjoint_anchors();
7903
7904 let lines = if action.lines == 0 { 3 } else { action.lines };
7905
7906 self.buffer.update(cx, |buffer, cx| {
7907 buffer.expand_excerpts(
7908 selections
7909 .into_iter()
7910 .map(|selection| selection.head().excerpt_id)
7911 .dedup(),
7912 lines,
7913 cx,
7914 )
7915 })
7916 }
7917
7918 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7919 self.buffer
7920 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7921 }
7922
7923 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7924 self.go_to_diagnostic_impl(Direction::Next, cx)
7925 }
7926
7927 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7928 self.go_to_diagnostic_impl(Direction::Prev, cx)
7929 }
7930
7931 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7932 let buffer = self.buffer.read(cx).snapshot(cx);
7933 let selection = self.selections.newest::<usize>(cx);
7934
7935 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7936 if direction == Direction::Next {
7937 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7938 let (group_id, jump_to) = popover.activation_info();
7939 if self.activate_diagnostics(group_id, cx) {
7940 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7941 let mut new_selection = s.newest_anchor().clone();
7942 new_selection.collapse_to(jump_to, SelectionGoal::None);
7943 s.select_anchors(vec![new_selection.clone()]);
7944 });
7945 }
7946 return;
7947 }
7948 }
7949
7950 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7951 active_diagnostics
7952 .primary_range
7953 .to_offset(&buffer)
7954 .to_inclusive()
7955 });
7956 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7957 if active_primary_range.contains(&selection.head()) {
7958 *active_primary_range.end()
7959 } else {
7960 selection.head()
7961 }
7962 } else {
7963 selection.head()
7964 };
7965 let snapshot = self.snapshot(cx);
7966 loop {
7967 let mut diagnostics = if direction == Direction::Prev {
7968 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7969 } else {
7970 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7971 }
7972 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
7973 let group = diagnostics.find_map(|entry| {
7974 if entry.diagnostic.is_primary
7975 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7976 && !entry.range.is_empty()
7977 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7978 && !entry.range.contains(&search_start)
7979 {
7980 Some((entry.range, entry.diagnostic.group_id))
7981 } else {
7982 None
7983 }
7984 });
7985
7986 if let Some((primary_range, group_id)) = group {
7987 if self.activate_diagnostics(group_id, cx) {
7988 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7989 s.select(vec![Selection {
7990 id: selection.id,
7991 start: primary_range.start,
7992 end: primary_range.start,
7993 reversed: false,
7994 goal: SelectionGoal::None,
7995 }]);
7996 });
7997 }
7998 break;
7999 } else {
8000 // Cycle around to the start of the buffer, potentially moving back to the start of
8001 // the currently active diagnostic.
8002 active_primary_range.take();
8003 if direction == Direction::Prev {
8004 if search_start == buffer.len() {
8005 break;
8006 } else {
8007 search_start = buffer.len();
8008 }
8009 } else if search_start == 0 {
8010 break;
8011 } else {
8012 search_start = 0;
8013 }
8014 }
8015 }
8016 }
8017
8018 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8019 let snapshot = self
8020 .display_map
8021 .update(cx, |display_map, cx| display_map.snapshot(cx));
8022 let selection = self.selections.newest::<Point>(cx);
8023
8024 if !self.seek_in_direction(
8025 &snapshot,
8026 selection.head(),
8027 false,
8028 snapshot
8029 .buffer_snapshot
8030 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
8031 cx,
8032 ) {
8033 let wrapped_point = Point::zero();
8034 self.seek_in_direction(
8035 &snapshot,
8036 wrapped_point,
8037 true,
8038 snapshot
8039 .buffer_snapshot
8040 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
8041 cx,
8042 );
8043 }
8044 }
8045
8046 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8047 let snapshot = self
8048 .display_map
8049 .update(cx, |display_map, cx| display_map.snapshot(cx));
8050 let selection = self.selections.newest::<Point>(cx);
8051
8052 if !self.seek_in_direction(
8053 &snapshot,
8054 selection.head(),
8055 false,
8056 snapshot
8057 .buffer_snapshot
8058 .git_diff_hunks_in_range_rev(0..selection.head().row),
8059 cx,
8060 ) {
8061 let wrapped_point = snapshot.buffer_snapshot.max_point();
8062 self.seek_in_direction(
8063 &snapshot,
8064 wrapped_point,
8065 true,
8066 snapshot
8067 .buffer_snapshot
8068 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
8069 cx,
8070 );
8071 }
8072 }
8073
8074 fn seek_in_direction(
8075 &mut self,
8076 snapshot: &DisplaySnapshot,
8077 initial_point: Point,
8078 is_wrapped: bool,
8079 hunks: impl Iterator<Item = DiffHunk<u32>>,
8080 cx: &mut ViewContext<Editor>,
8081 ) -> bool {
8082 let display_point = initial_point.to_display_point(snapshot);
8083 let mut hunks = hunks
8084 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8085 .filter(|hunk| {
8086 if is_wrapped {
8087 true
8088 } else {
8089 !hunk.contains_display_row(display_point.row())
8090 }
8091 })
8092 .dedup();
8093
8094 if let Some(hunk) = hunks.next() {
8095 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8096 let row = hunk.start_display_row();
8097 let point = DisplayPoint::new(row, 0);
8098 s.select_display_ranges([point..point]);
8099 });
8100
8101 true
8102 } else {
8103 false
8104 }
8105 }
8106
8107 pub fn go_to_definition(
8108 &mut self,
8109 _: &GoToDefinition,
8110 cx: &mut ViewContext<Self>,
8111 ) -> Task<Result<bool>> {
8112 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8113 }
8114
8115 pub fn go_to_implementation(
8116 &mut self,
8117 _: &GoToImplementation,
8118 cx: &mut ViewContext<Self>,
8119 ) -> Task<Result<bool>> {
8120 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8121 }
8122
8123 pub fn go_to_implementation_split(
8124 &mut self,
8125 _: &GoToImplementationSplit,
8126 cx: &mut ViewContext<Self>,
8127 ) -> Task<Result<bool>> {
8128 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8129 }
8130
8131 pub fn go_to_type_definition(
8132 &mut self,
8133 _: &GoToTypeDefinition,
8134 cx: &mut ViewContext<Self>,
8135 ) -> Task<Result<bool>> {
8136 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8137 }
8138
8139 pub fn go_to_definition_split(
8140 &mut self,
8141 _: &GoToDefinitionSplit,
8142 cx: &mut ViewContext<Self>,
8143 ) -> Task<Result<bool>> {
8144 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8145 }
8146
8147 pub fn go_to_type_definition_split(
8148 &mut self,
8149 _: &GoToTypeDefinitionSplit,
8150 cx: &mut ViewContext<Self>,
8151 ) -> Task<Result<bool>> {
8152 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8153 }
8154
8155 fn go_to_definition_of_kind(
8156 &mut self,
8157 kind: GotoDefinitionKind,
8158 split: bool,
8159 cx: &mut ViewContext<Self>,
8160 ) -> Task<Result<bool>> {
8161 let Some(workspace) = self.workspace() else {
8162 return Task::ready(Ok(false));
8163 };
8164 let buffer = self.buffer.read(cx);
8165 let head = self.selections.newest::<usize>(cx).head();
8166 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8167 text_anchor
8168 } else {
8169 return Task::ready(Ok(false));
8170 };
8171
8172 let project = workspace.read(cx).project().clone();
8173 let definitions = project.update(cx, |project, cx| match kind {
8174 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8175 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8176 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8177 });
8178
8179 cx.spawn(|editor, mut cx| async move {
8180 let definitions = definitions.await?;
8181 let navigated = editor
8182 .update(&mut cx, |editor, cx| {
8183 editor.navigate_to_hover_links(
8184 Some(kind),
8185 definitions
8186 .into_iter()
8187 .filter(|location| {
8188 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8189 })
8190 .map(HoverLink::Text)
8191 .collect::<Vec<_>>(),
8192 split,
8193 cx,
8194 )
8195 })?
8196 .await?;
8197 anyhow::Ok(navigated)
8198 })
8199 }
8200
8201 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8202 let position = self.selections.newest_anchor().head();
8203 let Some((buffer, buffer_position)) =
8204 self.buffer.read(cx).text_anchor_for_position(position, cx)
8205 else {
8206 return;
8207 };
8208
8209 cx.spawn(|editor, mut cx| async move {
8210 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8211 editor.update(&mut cx, |_, cx| {
8212 cx.open_url(&url);
8213 })
8214 } else {
8215 Ok(())
8216 }
8217 })
8218 .detach();
8219 }
8220
8221 pub(crate) fn navigate_to_hover_links(
8222 &mut self,
8223 kind: Option<GotoDefinitionKind>,
8224 mut definitions: Vec<HoverLink>,
8225 split: bool,
8226 cx: &mut ViewContext<Editor>,
8227 ) -> Task<Result<bool>> {
8228 // If there is one definition, just open it directly
8229 if definitions.len() == 1 {
8230 let definition = definitions.pop().unwrap();
8231 let target_task = match definition {
8232 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8233 HoverLink::InlayHint(lsp_location, server_id) => {
8234 self.compute_target_location(lsp_location, server_id, cx)
8235 }
8236 HoverLink::Url(url) => {
8237 cx.open_url(&url);
8238 Task::ready(Ok(None))
8239 }
8240 };
8241 cx.spawn(|editor, mut cx| async move {
8242 let target = target_task.await.context("target resolution task")?;
8243 if let Some(target) = target {
8244 editor.update(&mut cx, |editor, cx| {
8245 let Some(workspace) = editor.workspace() else {
8246 return false;
8247 };
8248 let pane = workspace.read(cx).active_pane().clone();
8249
8250 let range = target.range.to_offset(target.buffer.read(cx));
8251 let range = editor.range_for_match(&range);
8252 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8253 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8254 s.select_ranges([range]);
8255 });
8256 } else {
8257 cx.window_context().defer(move |cx| {
8258 let target_editor: View<Self> =
8259 workspace.update(cx, |workspace, cx| {
8260 let pane = if split {
8261 workspace.adjacent_pane(cx)
8262 } else {
8263 workspace.active_pane().clone()
8264 };
8265
8266 workspace.open_project_item(pane, target.buffer.clone(), cx)
8267 });
8268 target_editor.update(cx, |target_editor, cx| {
8269 // When selecting a definition in a different buffer, disable the nav history
8270 // to avoid creating a history entry at the previous cursor location.
8271 pane.update(cx, |pane, _| pane.disable_history());
8272 target_editor.change_selections(
8273 Some(Autoscroll::focused()),
8274 cx,
8275 |s| {
8276 s.select_ranges([range]);
8277 },
8278 );
8279 pane.update(cx, |pane, _| pane.enable_history());
8280 });
8281 });
8282 }
8283 true
8284 })
8285 } else {
8286 Ok(false)
8287 }
8288 })
8289 } else if !definitions.is_empty() {
8290 let replica_id = self.replica_id(cx);
8291 cx.spawn(|editor, mut cx| async move {
8292 let (title, location_tasks, workspace) = editor
8293 .update(&mut cx, |editor, cx| {
8294 let tab_kind = match kind {
8295 Some(GotoDefinitionKind::Implementation) => "Implementations",
8296 _ => "Definitions",
8297 };
8298 let title = definitions
8299 .iter()
8300 .find_map(|definition| match definition {
8301 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8302 let buffer = origin.buffer.read(cx);
8303 format!(
8304 "{} for {}",
8305 tab_kind,
8306 buffer
8307 .text_for_range(origin.range.clone())
8308 .collect::<String>()
8309 )
8310 }),
8311 HoverLink::InlayHint(_, _) => None,
8312 HoverLink::Url(_) => None,
8313 })
8314 .unwrap_or(tab_kind.to_string());
8315 let location_tasks = definitions
8316 .into_iter()
8317 .map(|definition| match definition {
8318 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8319 HoverLink::InlayHint(lsp_location, server_id) => {
8320 editor.compute_target_location(lsp_location, server_id, cx)
8321 }
8322 HoverLink::Url(_) => Task::ready(Ok(None)),
8323 })
8324 .collect::<Vec<_>>();
8325 (title, location_tasks, editor.workspace().clone())
8326 })
8327 .context("location tasks preparation")?;
8328
8329 let locations = futures::future::join_all(location_tasks)
8330 .await
8331 .into_iter()
8332 .filter_map(|location| location.transpose())
8333 .collect::<Result<_>>()
8334 .context("location tasks")?;
8335
8336 let Some(workspace) = workspace else {
8337 return Ok(false);
8338 };
8339 let opened = workspace
8340 .update(&mut cx, |workspace, cx| {
8341 Self::open_locations_in_multibuffer(
8342 workspace, locations, replica_id, title, split, cx,
8343 )
8344 })
8345 .ok();
8346
8347 anyhow::Ok(opened.is_some())
8348 })
8349 } else {
8350 Task::ready(Ok(false))
8351 }
8352 }
8353
8354 fn compute_target_location(
8355 &self,
8356 lsp_location: lsp::Location,
8357 server_id: LanguageServerId,
8358 cx: &mut ViewContext<Editor>,
8359 ) -> Task<anyhow::Result<Option<Location>>> {
8360 let Some(project) = self.project.clone() else {
8361 return Task::Ready(Some(Ok(None)));
8362 };
8363
8364 cx.spawn(move |editor, mut cx| async move {
8365 let location_task = editor.update(&mut cx, |editor, cx| {
8366 project.update(cx, |project, cx| {
8367 let language_server_name =
8368 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8369 project
8370 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8371 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8372 });
8373 language_server_name.map(|language_server_name| {
8374 project.open_local_buffer_via_lsp(
8375 lsp_location.uri.clone(),
8376 server_id,
8377 language_server_name,
8378 cx,
8379 )
8380 })
8381 })
8382 })?;
8383 let location = match location_task {
8384 Some(task) => Some({
8385 let target_buffer_handle = task.await.context("open local buffer")?;
8386 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8387 let target_start = target_buffer
8388 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8389 let target_end = target_buffer
8390 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8391 target_buffer.anchor_after(target_start)
8392 ..target_buffer.anchor_before(target_end)
8393 })?;
8394 Location {
8395 buffer: target_buffer_handle,
8396 range,
8397 }
8398 }),
8399 None => None,
8400 };
8401 Ok(location)
8402 })
8403 }
8404
8405 pub fn find_all_references(
8406 &mut self,
8407 _: &FindAllReferences,
8408 cx: &mut ViewContext<Self>,
8409 ) -> Option<Task<Result<()>>> {
8410 let multi_buffer = self.buffer.read(cx);
8411 let selection = self.selections.newest::<usize>(cx);
8412 let head = selection.head();
8413
8414 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8415 let head_anchor = multi_buffer_snapshot.anchor_at(
8416 head,
8417 if head < selection.tail() {
8418 Bias::Right
8419 } else {
8420 Bias::Left
8421 },
8422 );
8423
8424 match self
8425 .find_all_references_task_sources
8426 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8427 {
8428 Ok(_) => {
8429 log::info!(
8430 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8431 );
8432 return None;
8433 }
8434 Err(i) => {
8435 self.find_all_references_task_sources.insert(i, head_anchor);
8436 }
8437 }
8438
8439 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8440 let replica_id = self.replica_id(cx);
8441 let workspace = self.workspace()?;
8442 let project = workspace.read(cx).project().clone();
8443 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8444 Some(cx.spawn(|editor, mut cx| async move {
8445 let _cleanup = defer({
8446 let mut cx = cx.clone();
8447 move || {
8448 let _ = editor.update(&mut cx, |editor, _| {
8449 if let Ok(i) =
8450 editor
8451 .find_all_references_task_sources
8452 .binary_search_by(|anchor| {
8453 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8454 })
8455 {
8456 editor.find_all_references_task_sources.remove(i);
8457 }
8458 });
8459 }
8460 });
8461
8462 let locations = references.await?;
8463 if locations.is_empty() {
8464 return anyhow::Ok(());
8465 }
8466
8467 workspace.update(&mut cx, |workspace, cx| {
8468 let title = locations
8469 .first()
8470 .as_ref()
8471 .map(|location| {
8472 let buffer = location.buffer.read(cx);
8473 format!(
8474 "References to `{}`",
8475 buffer
8476 .text_for_range(location.range.clone())
8477 .collect::<String>()
8478 )
8479 })
8480 .unwrap();
8481 Self::open_locations_in_multibuffer(
8482 workspace, locations, replica_id, title, false, cx,
8483 );
8484 })
8485 }))
8486 }
8487
8488 /// Opens a multibuffer with the given project locations in it
8489 pub fn open_locations_in_multibuffer(
8490 workspace: &mut Workspace,
8491 mut locations: Vec<Location>,
8492 replica_id: ReplicaId,
8493 title: String,
8494 split: bool,
8495 cx: &mut ViewContext<Workspace>,
8496 ) {
8497 // If there are multiple definitions, open them in a multibuffer
8498 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8499 let mut locations = locations.into_iter().peekable();
8500 let mut ranges_to_highlight = Vec::new();
8501 let capability = workspace.project().read(cx).capability();
8502
8503 let excerpt_buffer = cx.new_model(|cx| {
8504 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8505 while let Some(location) = locations.next() {
8506 let buffer = location.buffer.read(cx);
8507 let mut ranges_for_buffer = Vec::new();
8508 let range = location.range.to_offset(buffer);
8509 ranges_for_buffer.push(range.clone());
8510
8511 while let Some(next_location) = locations.peek() {
8512 if next_location.buffer == location.buffer {
8513 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8514 locations.next();
8515 } else {
8516 break;
8517 }
8518 }
8519
8520 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8521 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8522 location.buffer.clone(),
8523 ranges_for_buffer,
8524 DEFAULT_MULTIBUFFER_CONTEXT,
8525 cx,
8526 ))
8527 }
8528
8529 multibuffer.with_title(title)
8530 });
8531
8532 let editor = cx.new_view(|cx| {
8533 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8534 });
8535 editor.update(cx, |editor, cx| {
8536 editor.highlight_background::<Self>(
8537 &ranges_to_highlight,
8538 |theme| theme.editor_highlighted_line_background,
8539 cx,
8540 );
8541 });
8542
8543 let item = Box::new(editor);
8544 let item_id = item.item_id();
8545
8546 if split {
8547 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8548 } else {
8549 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8550 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8551 pane.close_current_preview_item(cx)
8552 } else {
8553 None
8554 }
8555 });
8556 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8557 }
8558 workspace.active_pane().update(cx, |pane, cx| {
8559 pane.set_preview_item_id(Some(item_id), cx);
8560 });
8561 }
8562
8563 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8564 use language::ToOffset as _;
8565
8566 let project = self.project.clone()?;
8567 let selection = self.selections.newest_anchor().clone();
8568 let (cursor_buffer, cursor_buffer_position) = self
8569 .buffer
8570 .read(cx)
8571 .text_anchor_for_position(selection.head(), cx)?;
8572 let (tail_buffer, cursor_buffer_position_end) = self
8573 .buffer
8574 .read(cx)
8575 .text_anchor_for_position(selection.tail(), cx)?;
8576 if tail_buffer != cursor_buffer {
8577 return None;
8578 }
8579
8580 let snapshot = cursor_buffer.read(cx).snapshot();
8581 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8582 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8583 let prepare_rename = project.update(cx, |project, cx| {
8584 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8585 });
8586 drop(snapshot);
8587
8588 Some(cx.spawn(|this, mut cx| async move {
8589 let rename_range = if let Some(range) = prepare_rename.await? {
8590 Some(range)
8591 } else {
8592 this.update(&mut cx, |this, cx| {
8593 let buffer = this.buffer.read(cx).snapshot(cx);
8594 let mut buffer_highlights = this
8595 .document_highlights_for_position(selection.head(), &buffer)
8596 .filter(|highlight| {
8597 highlight.start.excerpt_id == selection.head().excerpt_id
8598 && highlight.end.excerpt_id == selection.head().excerpt_id
8599 });
8600 buffer_highlights
8601 .next()
8602 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8603 })?
8604 };
8605 if let Some(rename_range) = rename_range {
8606 this.update(&mut cx, |this, cx| {
8607 let snapshot = cursor_buffer.read(cx).snapshot();
8608 let rename_buffer_range = rename_range.to_offset(&snapshot);
8609 let cursor_offset_in_rename_range =
8610 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8611 let cursor_offset_in_rename_range_end =
8612 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8613
8614 this.take_rename(false, cx);
8615 let buffer = this.buffer.read(cx).read(cx);
8616 let cursor_offset = selection.head().to_offset(&buffer);
8617 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8618 let rename_end = rename_start + rename_buffer_range.len();
8619 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8620 let mut old_highlight_id = None;
8621 let old_name: Arc<str> = buffer
8622 .chunks(rename_start..rename_end, true)
8623 .map(|chunk| {
8624 if old_highlight_id.is_none() {
8625 old_highlight_id = chunk.syntax_highlight_id;
8626 }
8627 chunk.text
8628 })
8629 .collect::<String>()
8630 .into();
8631
8632 drop(buffer);
8633
8634 // Position the selection in the rename editor so that it matches the current selection.
8635 this.show_local_selections = false;
8636 let rename_editor = cx.new_view(|cx| {
8637 let mut editor = Editor::single_line(cx);
8638 editor.buffer.update(cx, |buffer, cx| {
8639 buffer.edit([(0..0, old_name.clone())], None, cx)
8640 });
8641 let rename_selection_range = match cursor_offset_in_rename_range
8642 .cmp(&cursor_offset_in_rename_range_end)
8643 {
8644 Ordering::Equal => {
8645 editor.select_all(&SelectAll, cx);
8646 return editor;
8647 }
8648 Ordering::Less => {
8649 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8650 }
8651 Ordering::Greater => {
8652 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8653 }
8654 };
8655 if rename_selection_range.end > old_name.len() {
8656 editor.select_all(&SelectAll, cx);
8657 } else {
8658 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8659 s.select_ranges([rename_selection_range]);
8660 });
8661 }
8662 editor
8663 });
8664
8665 let write_highlights =
8666 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8667 let read_highlights =
8668 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8669 let ranges = write_highlights
8670 .iter()
8671 .flat_map(|(_, ranges)| ranges.iter())
8672 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8673 .cloned()
8674 .collect();
8675
8676 this.highlight_text::<Rename>(
8677 ranges,
8678 HighlightStyle {
8679 fade_out: Some(0.6),
8680 ..Default::default()
8681 },
8682 cx,
8683 );
8684 let rename_focus_handle = rename_editor.focus_handle(cx);
8685 cx.focus(&rename_focus_handle);
8686 let block_id = this.insert_blocks(
8687 [BlockProperties {
8688 style: BlockStyle::Flex,
8689 position: range.start,
8690 height: 1,
8691 render: Box::new({
8692 let rename_editor = rename_editor.clone();
8693 move |cx: &mut BlockContext| {
8694 let mut text_style = cx.editor_style.text.clone();
8695 if let Some(highlight_style) = old_highlight_id
8696 .and_then(|h| h.style(&cx.editor_style.syntax))
8697 {
8698 text_style = text_style.highlight(highlight_style);
8699 }
8700 div()
8701 .pl(cx.anchor_x)
8702 .child(EditorElement::new(
8703 &rename_editor,
8704 EditorStyle {
8705 background: cx.theme().system().transparent,
8706 local_player: cx.editor_style.local_player,
8707 text: text_style,
8708 scrollbar_width: cx.editor_style.scrollbar_width,
8709 syntax: cx.editor_style.syntax.clone(),
8710 status: cx.editor_style.status.clone(),
8711 inlay_hints_style: HighlightStyle {
8712 color: Some(cx.theme().status().hint),
8713 font_weight: Some(FontWeight::BOLD),
8714 ..HighlightStyle::default()
8715 },
8716 suggestions_style: HighlightStyle {
8717 color: Some(cx.theme().status().predictive),
8718 ..HighlightStyle::default()
8719 },
8720 },
8721 ))
8722 .into_any_element()
8723 }
8724 }),
8725 disposition: BlockDisposition::Below,
8726 }],
8727 Some(Autoscroll::fit()),
8728 cx,
8729 )[0];
8730 this.pending_rename = Some(RenameState {
8731 range,
8732 old_name,
8733 editor: rename_editor,
8734 block_id,
8735 });
8736 })?;
8737 }
8738
8739 Ok(())
8740 }))
8741 }
8742
8743 pub fn confirm_rename(
8744 &mut self,
8745 _: &ConfirmRename,
8746 cx: &mut ViewContext<Self>,
8747 ) -> Option<Task<Result<()>>> {
8748 let rename = self.take_rename(false, cx)?;
8749 let workspace = self.workspace()?;
8750 let (start_buffer, start) = self
8751 .buffer
8752 .read(cx)
8753 .text_anchor_for_position(rename.range.start, cx)?;
8754 let (end_buffer, end) = self
8755 .buffer
8756 .read(cx)
8757 .text_anchor_for_position(rename.range.end, cx)?;
8758 if start_buffer != end_buffer {
8759 return None;
8760 }
8761
8762 let buffer = start_buffer;
8763 let range = start..end;
8764 let old_name = rename.old_name;
8765 let new_name = rename.editor.read(cx).text(cx);
8766
8767 let rename = workspace
8768 .read(cx)
8769 .project()
8770 .clone()
8771 .update(cx, |project, cx| {
8772 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8773 });
8774 let workspace = workspace.downgrade();
8775
8776 Some(cx.spawn(|editor, mut cx| async move {
8777 let project_transaction = rename.await?;
8778 Self::open_project_transaction(
8779 &editor,
8780 workspace,
8781 project_transaction,
8782 format!("Rename: {} → {}", old_name, new_name),
8783 cx.clone(),
8784 )
8785 .await?;
8786
8787 editor.update(&mut cx, |editor, cx| {
8788 editor.refresh_document_highlights(cx);
8789 })?;
8790 Ok(())
8791 }))
8792 }
8793
8794 fn take_rename(
8795 &mut self,
8796 moving_cursor: bool,
8797 cx: &mut ViewContext<Self>,
8798 ) -> Option<RenameState> {
8799 let rename = self.pending_rename.take()?;
8800 if rename.editor.focus_handle(cx).is_focused(cx) {
8801 cx.focus(&self.focus_handle);
8802 }
8803
8804 self.remove_blocks(
8805 [rename.block_id].into_iter().collect(),
8806 Some(Autoscroll::fit()),
8807 cx,
8808 );
8809 self.clear_highlights::<Rename>(cx);
8810 self.show_local_selections = true;
8811
8812 if moving_cursor {
8813 let rename_editor = rename.editor.read(cx);
8814 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8815
8816 // Update the selection to match the position of the selection inside
8817 // the rename editor.
8818 let snapshot = self.buffer.read(cx).read(cx);
8819 let rename_range = rename.range.to_offset(&snapshot);
8820 let cursor_in_editor = snapshot
8821 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8822 .min(rename_range.end);
8823 drop(snapshot);
8824
8825 self.change_selections(None, cx, |s| {
8826 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8827 });
8828 } else {
8829 self.refresh_document_highlights(cx);
8830 }
8831
8832 Some(rename)
8833 }
8834
8835 pub fn pending_rename(&self) -> Option<&RenameState> {
8836 self.pending_rename.as_ref()
8837 }
8838
8839 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8840 let project = match &self.project {
8841 Some(project) => project.clone(),
8842 None => return None,
8843 };
8844
8845 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8846 }
8847
8848 fn perform_format(
8849 &mut self,
8850 project: Model<Project>,
8851 trigger: FormatTrigger,
8852 cx: &mut ViewContext<Self>,
8853 ) -> Task<Result<()>> {
8854 let buffer = self.buffer().clone();
8855 let mut buffers = buffer.read(cx).all_buffers();
8856 if trigger == FormatTrigger::Save {
8857 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8858 }
8859
8860 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8861 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8862
8863 cx.spawn(|_, mut cx| async move {
8864 let transaction = futures::select_biased! {
8865 () = timeout => {
8866 log::warn!("timed out waiting for formatting");
8867 None
8868 }
8869 transaction = format.log_err().fuse() => transaction,
8870 };
8871
8872 buffer
8873 .update(&mut cx, |buffer, cx| {
8874 if let Some(transaction) = transaction {
8875 if !buffer.is_singleton() {
8876 buffer.push_transaction(&transaction.0, cx);
8877 }
8878 }
8879
8880 cx.notify();
8881 })
8882 .ok();
8883
8884 Ok(())
8885 })
8886 }
8887
8888 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8889 if let Some(project) = self.project.clone() {
8890 self.buffer.update(cx, |multi_buffer, cx| {
8891 project.update(cx, |project, cx| {
8892 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8893 });
8894 })
8895 }
8896 }
8897
8898 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8899 cx.show_character_palette();
8900 }
8901
8902 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8903 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8904 let buffer = self.buffer.read(cx).snapshot(cx);
8905 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8906 let is_valid = buffer
8907 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8908 .any(|entry| {
8909 entry.diagnostic.is_primary
8910 && !entry.range.is_empty()
8911 && entry.range.start == primary_range_start
8912 && entry.diagnostic.message == active_diagnostics.primary_message
8913 });
8914
8915 if is_valid != active_diagnostics.is_valid {
8916 active_diagnostics.is_valid = is_valid;
8917 let mut new_styles = HashMap::default();
8918 for (block_id, diagnostic) in &active_diagnostics.blocks {
8919 new_styles.insert(
8920 *block_id,
8921 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8922 );
8923 }
8924 self.display_map
8925 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8926 }
8927 }
8928 }
8929
8930 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8931 self.dismiss_diagnostics(cx);
8932 let snapshot = self.snapshot(cx);
8933 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8934 let buffer = self.buffer.read(cx).snapshot(cx);
8935
8936 let mut primary_range = None;
8937 let mut primary_message = None;
8938 let mut group_end = Point::zero();
8939 let diagnostic_group = buffer
8940 .diagnostic_group::<Point>(group_id)
8941 .filter_map(|entry| {
8942 if snapshot.is_line_folded(entry.range.start.row)
8943 && (entry.range.start.row == entry.range.end.row
8944 || snapshot.is_line_folded(entry.range.end.row))
8945 {
8946 return None;
8947 }
8948 if entry.range.end > group_end {
8949 group_end = entry.range.end;
8950 }
8951 if entry.diagnostic.is_primary {
8952 primary_range = Some(entry.range.clone());
8953 primary_message = Some(entry.diagnostic.message.clone());
8954 }
8955 Some(entry)
8956 })
8957 .collect::<Vec<_>>();
8958 let primary_range = primary_range?;
8959 let primary_message = primary_message?;
8960 let primary_range =
8961 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8962
8963 let blocks = display_map
8964 .insert_blocks(
8965 diagnostic_group.iter().map(|entry| {
8966 let diagnostic = entry.diagnostic.clone();
8967 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8968 BlockProperties {
8969 style: BlockStyle::Fixed,
8970 position: buffer.anchor_after(entry.range.start),
8971 height: message_height,
8972 render: diagnostic_block_renderer(diagnostic, true),
8973 disposition: BlockDisposition::Below,
8974 }
8975 }),
8976 cx,
8977 )
8978 .into_iter()
8979 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8980 .collect();
8981
8982 Some(ActiveDiagnosticGroup {
8983 primary_range,
8984 primary_message,
8985 blocks,
8986 is_valid: true,
8987 })
8988 });
8989 self.active_diagnostics.is_some()
8990 }
8991
8992 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8993 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8994 self.display_map.update(cx, |display_map, cx| {
8995 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8996 });
8997 cx.notify();
8998 }
8999 }
9000
9001 pub fn set_selections_from_remote(
9002 &mut self,
9003 selections: Vec<Selection<Anchor>>,
9004 pending_selection: Option<Selection<Anchor>>,
9005 cx: &mut ViewContext<Self>,
9006 ) {
9007 let old_cursor_position = self.selections.newest_anchor().head();
9008 self.selections.change_with(cx, |s| {
9009 s.select_anchors(selections);
9010 if let Some(pending_selection) = pending_selection {
9011 s.set_pending(pending_selection, SelectMode::Character);
9012 } else {
9013 s.clear_pending();
9014 }
9015 });
9016 self.selections_did_change(false, &old_cursor_position, cx);
9017 }
9018
9019 fn push_to_selection_history(&mut self) {
9020 self.selection_history.push(SelectionHistoryEntry {
9021 selections: self.selections.disjoint_anchors(),
9022 select_next_state: self.select_next_state.clone(),
9023 select_prev_state: self.select_prev_state.clone(),
9024 add_selections_state: self.add_selections_state.clone(),
9025 });
9026 }
9027
9028 pub fn transact(
9029 &mut self,
9030 cx: &mut ViewContext<Self>,
9031 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9032 ) -> Option<TransactionId> {
9033 self.start_transaction_at(Instant::now(), cx);
9034 update(self, cx);
9035 self.end_transaction_at(Instant::now(), cx)
9036 }
9037
9038 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9039 self.end_selection(cx);
9040 if let Some(tx_id) = self
9041 .buffer
9042 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9043 {
9044 self.selection_history
9045 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9046 cx.emit(EditorEvent::TransactionBegun {
9047 transaction_id: tx_id,
9048 })
9049 }
9050 }
9051
9052 fn end_transaction_at(
9053 &mut self,
9054 now: Instant,
9055 cx: &mut ViewContext<Self>,
9056 ) -> Option<TransactionId> {
9057 if let Some(tx_id) = self
9058 .buffer
9059 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9060 {
9061 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9062 *end_selections = Some(self.selections.disjoint_anchors());
9063 } else {
9064 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9065 }
9066
9067 cx.emit(EditorEvent::Edited);
9068 Some(tx_id)
9069 } else {
9070 None
9071 }
9072 }
9073
9074 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9075 let mut fold_ranges = Vec::new();
9076
9077 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9078
9079 let selections = self.selections.all_adjusted(cx);
9080 for selection in selections {
9081 let range = selection.range().sorted();
9082 let buffer_start_row = range.start.row;
9083
9084 for row in (0..=range.end.row).rev() {
9085 let fold_range = display_map.foldable_range(row);
9086
9087 if let Some(fold_range) = fold_range {
9088 if fold_range.end.row >= buffer_start_row {
9089 fold_ranges.push(fold_range);
9090 if row <= range.start.row {
9091 break;
9092 }
9093 }
9094 }
9095 }
9096 }
9097
9098 self.fold_ranges(fold_ranges, true, cx);
9099 }
9100
9101 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9102 let buffer_row = fold_at.buffer_row;
9103 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9104
9105 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9106 let autoscroll = self
9107 .selections
9108 .all::<Point>(cx)
9109 .iter()
9110 .any(|selection| fold_range.overlaps(&selection.range()));
9111
9112 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9113 }
9114 }
9115
9116 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9117 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9118 let buffer = &display_map.buffer_snapshot;
9119 let selections = self.selections.all::<Point>(cx);
9120 let ranges = selections
9121 .iter()
9122 .map(|s| {
9123 let range = s.display_range(&display_map).sorted();
9124 let mut start = range.start.to_point(&display_map);
9125 let mut end = range.end.to_point(&display_map);
9126 start.column = 0;
9127 end.column = buffer.line_len(end.row);
9128 start..end
9129 })
9130 .collect::<Vec<_>>();
9131
9132 self.unfold_ranges(ranges, true, true, cx);
9133 }
9134
9135 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9136 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9137
9138 let intersection_range = Point::new(unfold_at.buffer_row, 0)
9139 ..Point::new(
9140 unfold_at.buffer_row,
9141 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9142 );
9143
9144 let autoscroll = self
9145 .selections
9146 .all::<Point>(cx)
9147 .iter()
9148 .any(|selection| selection.range().overlaps(&intersection_range));
9149
9150 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9151 }
9152
9153 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9154 let selections = self.selections.all::<Point>(cx);
9155 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9156 let line_mode = self.selections.line_mode;
9157 let ranges = selections.into_iter().map(|s| {
9158 if line_mode {
9159 let start = Point::new(s.start.row, 0);
9160 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
9161 start..end
9162 } else {
9163 s.start..s.end
9164 }
9165 });
9166 self.fold_ranges(ranges, true, cx);
9167 }
9168
9169 pub fn fold_ranges<T: ToOffset + Clone>(
9170 &mut self,
9171 ranges: impl IntoIterator<Item = Range<T>>,
9172 auto_scroll: bool,
9173 cx: &mut ViewContext<Self>,
9174 ) {
9175 let mut fold_ranges = Vec::new();
9176 let mut buffers_affected = HashMap::default();
9177 let multi_buffer = self.buffer().read(cx);
9178 for range in ranges {
9179 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9180 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9181 };
9182 fold_ranges.push(range);
9183 }
9184
9185 let mut ranges = fold_ranges.into_iter().peekable();
9186 if ranges.peek().is_some() {
9187 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9188
9189 if auto_scroll {
9190 self.request_autoscroll(Autoscroll::fit(), cx);
9191 }
9192
9193 for buffer in buffers_affected.into_values() {
9194 self.sync_expanded_diff_hunks(buffer, cx);
9195 }
9196
9197 cx.notify();
9198
9199 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9200 // Clear diagnostics block when folding a range that contains it.
9201 let snapshot = self.snapshot(cx);
9202 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9203 drop(snapshot);
9204 self.active_diagnostics = Some(active_diagnostics);
9205 self.dismiss_diagnostics(cx);
9206 } else {
9207 self.active_diagnostics = Some(active_diagnostics);
9208 }
9209 }
9210 }
9211 }
9212
9213 pub fn unfold_ranges<T: ToOffset + Clone>(
9214 &mut self,
9215 ranges: impl IntoIterator<Item = Range<T>>,
9216 inclusive: bool,
9217 auto_scroll: bool,
9218 cx: &mut ViewContext<Self>,
9219 ) {
9220 let mut unfold_ranges = Vec::new();
9221 let mut buffers_affected = HashMap::default();
9222 let multi_buffer = self.buffer().read(cx);
9223 for range in ranges {
9224 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9225 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9226 };
9227 unfold_ranges.push(range);
9228 }
9229
9230 let mut ranges = unfold_ranges.into_iter().peekable();
9231 if ranges.peek().is_some() {
9232 self.display_map
9233 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9234 if auto_scroll {
9235 self.request_autoscroll(Autoscroll::fit(), cx);
9236 }
9237
9238 for buffer in buffers_affected.into_values() {
9239 self.sync_expanded_diff_hunks(buffer, cx);
9240 }
9241
9242 cx.notify();
9243 }
9244 }
9245
9246 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9247 if hovered != self.gutter_hovered {
9248 self.gutter_hovered = hovered;
9249 cx.notify();
9250 }
9251 }
9252
9253 pub fn insert_blocks(
9254 &mut self,
9255 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9256 autoscroll: Option<Autoscroll>,
9257 cx: &mut ViewContext<Self>,
9258 ) -> Vec<BlockId> {
9259 let blocks = self
9260 .display_map
9261 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9262 if let Some(autoscroll) = autoscroll {
9263 self.request_autoscroll(autoscroll, cx);
9264 }
9265 blocks
9266 }
9267
9268 pub fn replace_blocks(
9269 &mut self,
9270 blocks: HashMap<BlockId, RenderBlock>,
9271 autoscroll: Option<Autoscroll>,
9272 cx: &mut ViewContext<Self>,
9273 ) {
9274 self.display_map
9275 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9276 if let Some(autoscroll) = autoscroll {
9277 self.request_autoscroll(autoscroll, cx);
9278 }
9279 }
9280
9281 pub fn remove_blocks(
9282 &mut self,
9283 block_ids: HashSet<BlockId>,
9284 autoscroll: Option<Autoscroll>,
9285 cx: &mut ViewContext<Self>,
9286 ) {
9287 self.display_map.update(cx, |display_map, cx| {
9288 display_map.remove_blocks(block_ids, cx)
9289 });
9290 if let Some(autoscroll) = autoscroll {
9291 self.request_autoscroll(autoscroll, cx);
9292 }
9293 }
9294
9295 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
9296 self.display_map
9297 .update(cx, |map, cx| map.snapshot(cx))
9298 .longest_row()
9299 }
9300
9301 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9302 self.display_map
9303 .update(cx, |map, cx| map.snapshot(cx))
9304 .max_point()
9305 }
9306
9307 pub fn text(&self, cx: &AppContext) -> String {
9308 self.buffer.read(cx).read(cx).text()
9309 }
9310
9311 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9312 let text = self.text(cx);
9313 let text = text.trim();
9314
9315 if text.is_empty() {
9316 return None;
9317 }
9318
9319 Some(text.to_string())
9320 }
9321
9322 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9323 self.transact(cx, |this, cx| {
9324 this.buffer
9325 .read(cx)
9326 .as_singleton()
9327 .expect("you can only call set_text on editors for singleton buffers")
9328 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9329 });
9330 }
9331
9332 pub fn display_text(&self, cx: &mut AppContext) -> String {
9333 self.display_map
9334 .update(cx, |map, cx| map.snapshot(cx))
9335 .text()
9336 }
9337
9338 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9339 let mut wrap_guides = smallvec::smallvec![];
9340
9341 if self.show_wrap_guides == Some(false) {
9342 return wrap_guides;
9343 }
9344
9345 let settings = self.buffer.read(cx).settings_at(0, cx);
9346 if settings.show_wrap_guides {
9347 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9348 wrap_guides.push((soft_wrap as usize, true));
9349 }
9350 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9351 }
9352
9353 wrap_guides
9354 }
9355
9356 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9357 let settings = self.buffer.read(cx).settings_at(0, cx);
9358 let mode = self
9359 .soft_wrap_mode_override
9360 .unwrap_or_else(|| settings.soft_wrap);
9361 match mode {
9362 language_settings::SoftWrap::None => SoftWrap::None,
9363 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9364 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9365 language_settings::SoftWrap::PreferredLineLength => {
9366 SoftWrap::Column(settings.preferred_line_length)
9367 }
9368 }
9369 }
9370
9371 pub fn set_soft_wrap_mode(
9372 &mut self,
9373 mode: language_settings::SoftWrap,
9374 cx: &mut ViewContext<Self>,
9375 ) {
9376 self.soft_wrap_mode_override = Some(mode);
9377 cx.notify();
9378 }
9379
9380 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9381 let rem_size = cx.rem_size();
9382 self.display_map.update(cx, |map, cx| {
9383 map.set_font(
9384 style.text.font(),
9385 style.text.font_size.to_pixels(rem_size),
9386 cx,
9387 )
9388 });
9389 self.style = Some(style);
9390 }
9391
9392 pub fn style(&self) -> Option<&EditorStyle> {
9393 self.style.as_ref()
9394 }
9395
9396 // Called by the element. This method is not designed to be called outside of the editor
9397 // element's layout code because it does not notify when rewrapping is computed synchronously.
9398 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9399 self.display_map
9400 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9401 }
9402
9403 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9404 if self.soft_wrap_mode_override.is_some() {
9405 self.soft_wrap_mode_override.take();
9406 } else {
9407 let soft_wrap = match self.soft_wrap_mode(cx) {
9408 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9409 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9410 language_settings::SoftWrap::PreferLine
9411 }
9412 };
9413 self.soft_wrap_mode_override = Some(soft_wrap);
9414 }
9415 cx.notify();
9416 }
9417
9418 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9419 let mut editor_settings = EditorSettings::get_global(cx).clone();
9420 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9421 EditorSettings::override_global(editor_settings, cx);
9422 }
9423
9424 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9425 self.show_gutter = show_gutter;
9426 cx.notify();
9427 }
9428
9429 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9430 self.show_wrap_guides = Some(show_gutter);
9431 cx.notify();
9432 }
9433
9434 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9435 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9436 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9437 cx.reveal_path(&file.abs_path(cx));
9438 }
9439 }
9440 }
9441
9442 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9443 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9444 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9445 if let Some(path) = file.abs_path(cx).to_str() {
9446 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9447 }
9448 }
9449 }
9450 }
9451
9452 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9453 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9454 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9455 if let Some(path) = file.path().to_str() {
9456 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9457 }
9458 }
9459 }
9460 }
9461
9462 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9463 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9464
9465 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9466 self.start_git_blame(true, cx);
9467 }
9468
9469 cx.notify();
9470 }
9471
9472 pub fn toggle_git_blame_inline(
9473 &mut self,
9474 _: &ToggleGitBlameInline,
9475 cx: &mut ViewContext<Self>,
9476 ) {
9477 self.toggle_git_blame_inline_internal(true, cx);
9478 cx.notify();
9479 }
9480
9481 pub fn git_blame_inline_enabled(&self) -> bool {
9482 self.git_blame_inline_enabled
9483 }
9484
9485 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9486 if let Some(project) = self.project.as_ref() {
9487 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9488 return;
9489 };
9490
9491 if buffer.read(cx).file().is_none() {
9492 return;
9493 }
9494
9495 let focused = self.focus_handle(cx).contains_focused(cx);
9496
9497 let project = project.clone();
9498 let blame =
9499 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9500 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9501 self.blame = Some(blame);
9502 }
9503 }
9504
9505 fn toggle_git_blame_inline_internal(
9506 &mut self,
9507 user_triggered: bool,
9508 cx: &mut ViewContext<Self>,
9509 ) {
9510 if self.git_blame_inline_enabled {
9511 self.git_blame_inline_enabled = false;
9512 self.show_git_blame_inline = false;
9513 self.show_git_blame_inline_delay_task.take();
9514 } else {
9515 self.git_blame_inline_enabled = true;
9516 self.start_git_blame_inline(user_triggered, cx);
9517 }
9518
9519 cx.notify();
9520 }
9521
9522 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9523 self.start_git_blame(user_triggered, cx);
9524
9525 if ProjectSettings::get_global(cx)
9526 .git
9527 .inline_blame_delay()
9528 .is_some()
9529 {
9530 self.start_inline_blame_timer(cx);
9531 } else {
9532 self.show_git_blame_inline = true
9533 }
9534 }
9535
9536 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9537 self.blame.as_ref()
9538 }
9539
9540 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9541 self.show_git_blame_gutter && self.has_blame_entries(cx)
9542 }
9543
9544 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9545 self.show_git_blame_inline
9546 && self.focus_handle.is_focused(cx)
9547 && !self.newest_selection_head_on_empty_line(cx)
9548 && self.has_blame_entries(cx)
9549 }
9550
9551 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9552 self.blame()
9553 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9554 }
9555
9556 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9557 let cursor_anchor = self.selections.newest_anchor().head();
9558
9559 let snapshot = self.buffer.read(cx).snapshot(cx);
9560 let buffer_row = cursor_anchor.to_point(&snapshot).row;
9561
9562 snapshot.line_len(buffer_row) == 0
9563 }
9564
9565 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9566 let (path, repo) = maybe!({
9567 let project_handle = self.project.as_ref()?.clone();
9568 let project = project_handle.read(cx);
9569 let buffer = self.buffer().read(cx).as_singleton()?;
9570 let path = buffer
9571 .read(cx)
9572 .file()?
9573 .as_local()?
9574 .path()
9575 .to_str()?
9576 .to_string();
9577 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9578 Some((path, repo))
9579 })
9580 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9581
9582 const REMOTE_NAME: &str = "origin";
9583 let origin_url = repo
9584 .lock()
9585 .remote_url(REMOTE_NAME)
9586 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9587 let sha = repo
9588 .lock()
9589 .head_sha()
9590 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9591 let selections = self.selections.all::<Point>(cx);
9592 let selection = selections.iter().peekable().next();
9593
9594 let (provider, remote) =
9595 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9596 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9597
9598 Ok(provider.build_permalink(
9599 remote,
9600 BuildPermalinkParams {
9601 sha: &sha,
9602 path: &path,
9603 selection: selection.map(|selection| {
9604 let range = selection.range();
9605 let start = range.start.row;
9606 let end = range.end.row;
9607 start..end
9608 }),
9609 },
9610 ))
9611 }
9612
9613 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9614 let permalink = self.get_permalink_to_line(cx);
9615
9616 match permalink {
9617 Ok(permalink) => {
9618 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9619 }
9620 Err(err) => {
9621 let message = format!("Failed to copy permalink: {err}");
9622
9623 Err::<(), anyhow::Error>(err).log_err();
9624
9625 if let Some(workspace) = self.workspace() {
9626 workspace.update(cx, |workspace, cx| {
9627 struct CopyPermalinkToLine;
9628
9629 workspace.show_toast(
9630 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9631 cx,
9632 )
9633 })
9634 }
9635 }
9636 }
9637 }
9638
9639 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9640 let permalink = self.get_permalink_to_line(cx);
9641
9642 match permalink {
9643 Ok(permalink) => {
9644 cx.open_url(permalink.as_ref());
9645 }
9646 Err(err) => {
9647 let message = format!("Failed to open permalink: {err}");
9648
9649 Err::<(), anyhow::Error>(err).log_err();
9650
9651 if let Some(workspace) = self.workspace() {
9652 workspace.update(cx, |workspace, cx| {
9653 struct OpenPermalinkToLine;
9654
9655 workspace.show_toast(
9656 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9657 cx,
9658 )
9659 })
9660 }
9661 }
9662 }
9663 }
9664
9665 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9666 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9667 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9668 pub fn highlight_rows<T: 'static>(
9669 &mut self,
9670 rows: RangeInclusive<Anchor>,
9671 color: Option<Hsla>,
9672 cx: &mut ViewContext<Self>,
9673 ) {
9674 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9675 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9676 hash_map::Entry::Occupied(o) => {
9677 let row_highlights = o.into_mut();
9678 let existing_highlight_index =
9679 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9680 highlight_range
9681 .start()
9682 .cmp(&rows.start(), &multi_buffer_snapshot)
9683 .then(
9684 highlight_range
9685 .end()
9686 .cmp(&rows.end(), &multi_buffer_snapshot),
9687 )
9688 });
9689 match color {
9690 Some(color) => {
9691 let insert_index = match existing_highlight_index {
9692 Ok(i) => i,
9693 Err(i) => i,
9694 };
9695 row_highlights.insert(
9696 insert_index,
9697 (post_inc(&mut self.highlight_order), rows, Some(color)),
9698 );
9699 }
9700 None => match existing_highlight_index {
9701 Ok(i) => {
9702 row_highlights.remove(i);
9703 }
9704 Err(i) => {
9705 row_highlights
9706 .insert(i, (post_inc(&mut self.highlight_order), rows, None));
9707 }
9708 },
9709 }
9710 }
9711 hash_map::Entry::Vacant(v) => {
9712 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9713 }
9714 }
9715 }
9716
9717 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9718 pub fn clear_row_highlights<T: 'static>(&mut self) {
9719 self.highlighted_rows.remove(&TypeId::of::<T>());
9720 }
9721
9722 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9723 pub fn highlighted_rows<T: 'static>(
9724 &self,
9725 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9726 Some(
9727 self.highlighted_rows
9728 .get(&TypeId::of::<T>())?
9729 .iter()
9730 .map(|(_, range, color)| (range, color.as_ref())),
9731 )
9732 }
9733
9734 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9735 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9736 /// Allows to ignore certain kinds of highlights.
9737 pub fn highlighted_display_rows(
9738 &mut self,
9739 exclude_highlights: HashSet<TypeId>,
9740 cx: &mut WindowContext,
9741 ) -> BTreeMap<u32, Hsla> {
9742 let snapshot = self.snapshot(cx);
9743 let mut used_highlight_orders = HashMap::default();
9744 self.highlighted_rows
9745 .iter()
9746 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9747 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9748 .fold(
9749 BTreeMap::<u32, Hsla>::new(),
9750 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9751 let start_row = anchor_range.start().to_display_point(&snapshot).row();
9752 let end_row = anchor_range.end().to_display_point(&snapshot).row();
9753 for row in start_row..=end_row {
9754 let used_index =
9755 used_highlight_orders.entry(row).or_insert(*highlight_order);
9756 if highlight_order >= used_index {
9757 *used_index = *highlight_order;
9758 match hsla {
9759 Some(hsla) => {
9760 unique_rows.insert(row, *hsla);
9761 }
9762 None => {
9763 unique_rows.remove(&row);
9764 }
9765 }
9766 }
9767 }
9768 unique_rows
9769 },
9770 )
9771 }
9772
9773 pub fn set_search_within_ranges(
9774 &mut self,
9775 ranges: &[Range<Anchor>],
9776 cx: &mut ViewContext<Self>,
9777 ) {
9778 self.highlight_background::<SearchWithinRange>(
9779 ranges,
9780 |colors| colors.editor_document_highlight_read_background,
9781 cx,
9782 )
9783 }
9784
9785 pub fn highlight_background<T: 'static>(
9786 &mut self,
9787 ranges: &[Range<Anchor>],
9788 color_fetcher: fn(&ThemeColors) -> Hsla,
9789 cx: &mut ViewContext<Self>,
9790 ) {
9791 let snapshot = self.snapshot(cx);
9792 // this is to try and catch a panic sooner
9793 for range in ranges {
9794 snapshot
9795 .buffer_snapshot
9796 .summary_for_anchor::<usize>(&range.start);
9797 snapshot
9798 .buffer_snapshot
9799 .summary_for_anchor::<usize>(&range.end);
9800 }
9801
9802 self.background_highlights
9803 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9804 self.scrollbar_marker_state.dirty = true;
9805 cx.notify();
9806 }
9807
9808 pub fn clear_background_highlights<T: 'static>(
9809 &mut self,
9810 cx: &mut ViewContext<Self>,
9811 ) -> Option<BackgroundHighlight> {
9812 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9813 if !text_highlights.1.is_empty() {
9814 self.scrollbar_marker_state.dirty = true;
9815 cx.notify();
9816 }
9817 Some(text_highlights)
9818 }
9819
9820 #[cfg(feature = "test-support")]
9821 pub fn all_text_background_highlights(
9822 &mut self,
9823 cx: &mut ViewContext<Self>,
9824 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9825 let snapshot = self.snapshot(cx);
9826 let buffer = &snapshot.buffer_snapshot;
9827 let start = buffer.anchor_before(0);
9828 let end = buffer.anchor_after(buffer.len());
9829 let theme = cx.theme().colors();
9830 self.background_highlights_in_range(start..end, &snapshot, theme)
9831 }
9832
9833 fn document_highlights_for_position<'a>(
9834 &'a self,
9835 position: Anchor,
9836 buffer: &'a MultiBufferSnapshot,
9837 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9838 let read_highlights = self
9839 .background_highlights
9840 .get(&TypeId::of::<DocumentHighlightRead>())
9841 .map(|h| &h.1);
9842 let write_highlights = self
9843 .background_highlights
9844 .get(&TypeId::of::<DocumentHighlightWrite>())
9845 .map(|h| &h.1);
9846 let left_position = position.bias_left(buffer);
9847 let right_position = position.bias_right(buffer);
9848 read_highlights
9849 .into_iter()
9850 .chain(write_highlights)
9851 .flat_map(move |ranges| {
9852 let start_ix = match ranges.binary_search_by(|probe| {
9853 let cmp = probe.end.cmp(&left_position, buffer);
9854 if cmp.is_ge() {
9855 Ordering::Greater
9856 } else {
9857 Ordering::Less
9858 }
9859 }) {
9860 Ok(i) | Err(i) => i,
9861 };
9862
9863 ranges[start_ix..]
9864 .iter()
9865 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9866 })
9867 }
9868
9869 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9870 self.background_highlights
9871 .get(&TypeId::of::<T>())
9872 .map_or(false, |(_, highlights)| !highlights.is_empty())
9873 }
9874
9875 pub fn background_highlights_in_range(
9876 &self,
9877 search_range: Range<Anchor>,
9878 display_snapshot: &DisplaySnapshot,
9879 theme: &ThemeColors,
9880 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9881 let mut results = Vec::new();
9882 for (color_fetcher, ranges) in self.background_highlights.values() {
9883 let color = color_fetcher(theme);
9884 let start_ix = match ranges.binary_search_by(|probe| {
9885 let cmp = probe
9886 .end
9887 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9888 if cmp.is_gt() {
9889 Ordering::Greater
9890 } else {
9891 Ordering::Less
9892 }
9893 }) {
9894 Ok(i) | Err(i) => i,
9895 };
9896 for range in &ranges[start_ix..] {
9897 if range
9898 .start
9899 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9900 .is_ge()
9901 {
9902 break;
9903 }
9904
9905 let start = range.start.to_display_point(&display_snapshot);
9906 let end = range.end.to_display_point(&display_snapshot);
9907 results.push((start..end, color))
9908 }
9909 }
9910 results
9911 }
9912
9913 pub fn background_highlight_row_ranges<T: 'static>(
9914 &self,
9915 search_range: Range<Anchor>,
9916 display_snapshot: &DisplaySnapshot,
9917 count: usize,
9918 ) -> Vec<RangeInclusive<DisplayPoint>> {
9919 let mut results = Vec::new();
9920 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9921 return vec![];
9922 };
9923
9924 let start_ix = match ranges.binary_search_by(|probe| {
9925 let cmp = probe
9926 .end
9927 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9928 if cmp.is_gt() {
9929 Ordering::Greater
9930 } else {
9931 Ordering::Less
9932 }
9933 }) {
9934 Ok(i) | Err(i) => i,
9935 };
9936 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9937 if let (Some(start_display), Some(end_display)) = (start, end) {
9938 results.push(
9939 start_display.to_display_point(display_snapshot)
9940 ..=end_display.to_display_point(display_snapshot),
9941 );
9942 }
9943 };
9944 let mut start_row: Option<Point> = None;
9945 let mut end_row: Option<Point> = None;
9946 if ranges.len() > count {
9947 return Vec::new();
9948 }
9949 for range in &ranges[start_ix..] {
9950 if range
9951 .start
9952 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9953 .is_ge()
9954 {
9955 break;
9956 }
9957 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9958 if let Some(current_row) = &end_row {
9959 if end.row == current_row.row {
9960 continue;
9961 }
9962 }
9963 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9964 if start_row.is_none() {
9965 assert_eq!(end_row, None);
9966 start_row = Some(start);
9967 end_row = Some(end);
9968 continue;
9969 }
9970 if let Some(current_end) = end_row.as_mut() {
9971 if start.row > current_end.row + 1 {
9972 push_region(start_row, end_row);
9973 start_row = Some(start);
9974 end_row = Some(end);
9975 } else {
9976 // Merge two hunks.
9977 *current_end = end;
9978 }
9979 } else {
9980 unreachable!();
9981 }
9982 }
9983 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9984 push_region(start_row, end_row);
9985 results
9986 }
9987
9988 /// Get the text ranges corresponding to the redaction query
9989 pub fn redacted_ranges(
9990 &self,
9991 search_range: Range<Anchor>,
9992 display_snapshot: &DisplaySnapshot,
9993 cx: &WindowContext,
9994 ) -> Vec<Range<DisplayPoint>> {
9995 display_snapshot
9996 .buffer_snapshot
9997 .redacted_ranges(search_range, |file| {
9998 if let Some(file) = file {
9999 file.is_private()
10000 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10001 } else {
10002 false
10003 }
10004 })
10005 .map(|range| {
10006 range.start.to_display_point(display_snapshot)
10007 ..range.end.to_display_point(display_snapshot)
10008 })
10009 .collect()
10010 }
10011
10012 pub fn highlight_text<T: 'static>(
10013 &mut self,
10014 ranges: Vec<Range<Anchor>>,
10015 style: HighlightStyle,
10016 cx: &mut ViewContext<Self>,
10017 ) {
10018 self.display_map.update(cx, |map, _| {
10019 map.highlight_text(TypeId::of::<T>(), ranges, style)
10020 });
10021 cx.notify();
10022 }
10023
10024 pub(crate) fn highlight_inlays<T: 'static>(
10025 &mut self,
10026 highlights: Vec<InlayHighlight>,
10027 style: HighlightStyle,
10028 cx: &mut ViewContext<Self>,
10029 ) {
10030 self.display_map.update(cx, |map, _| {
10031 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10032 });
10033 cx.notify();
10034 }
10035
10036 pub fn text_highlights<'a, T: 'static>(
10037 &'a self,
10038 cx: &'a AppContext,
10039 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10040 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10041 }
10042
10043 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10044 let cleared = self
10045 .display_map
10046 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10047 if cleared {
10048 cx.notify();
10049 }
10050 }
10051
10052 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10053 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10054 && self.focus_handle.is_focused(cx)
10055 }
10056
10057 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10058 cx.notify();
10059 }
10060
10061 fn on_buffer_event(
10062 &mut self,
10063 multibuffer: Model<MultiBuffer>,
10064 event: &multi_buffer::Event,
10065 cx: &mut ViewContext<Self>,
10066 ) {
10067 match event {
10068 multi_buffer::Event::Edited {
10069 singleton_buffer_edited,
10070 } => {
10071 self.scrollbar_marker_state.dirty = true;
10072 self.refresh_active_diagnostics(cx);
10073 self.refresh_code_actions(cx);
10074 if self.has_active_inline_completion(cx) {
10075 self.update_visible_inline_completion(cx);
10076 }
10077 cx.emit(EditorEvent::BufferEdited);
10078 cx.emit(SearchEvent::MatchesInvalidated);
10079
10080 if *singleton_buffer_edited {
10081 if let Some(project) = &self.project {
10082 let project = project.read(cx);
10083 let languages_affected = multibuffer
10084 .read(cx)
10085 .all_buffers()
10086 .into_iter()
10087 .filter_map(|buffer| {
10088 let buffer = buffer.read(cx);
10089 let language = buffer.language()?;
10090 if project.is_local()
10091 && project.language_servers_for_buffer(buffer, cx).count() == 0
10092 {
10093 None
10094 } else {
10095 Some(language)
10096 }
10097 })
10098 .cloned()
10099 .collect::<HashSet<_>>();
10100 if !languages_affected.is_empty() {
10101 self.refresh_inlay_hints(
10102 InlayHintRefreshReason::BufferEdited(languages_affected),
10103 cx,
10104 );
10105 }
10106 }
10107 }
10108
10109 let Some(project) = &self.project else { return };
10110 let telemetry = project.read(cx).client().telemetry().clone();
10111 telemetry.log_edit_event("editor");
10112 }
10113 multi_buffer::Event::ExcerptsAdded {
10114 buffer,
10115 predecessor,
10116 excerpts,
10117 } => {
10118 cx.emit(EditorEvent::ExcerptsAdded {
10119 buffer: buffer.clone(),
10120 predecessor: *predecessor,
10121 excerpts: excerpts.clone(),
10122 });
10123 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10124 }
10125 multi_buffer::Event::ExcerptsRemoved { ids } => {
10126 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10127 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10128 }
10129 multi_buffer::Event::Reparsed => {
10130 self.tasks_update_task = Some(self.refresh_runnables(cx));
10131
10132 cx.emit(EditorEvent::Reparsed);
10133 }
10134 multi_buffer::Event::LanguageChanged => {
10135 cx.emit(EditorEvent::Reparsed);
10136 cx.notify();
10137 }
10138 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10139 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10140 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10141 cx.emit(EditorEvent::TitleChanged)
10142 }
10143 multi_buffer::Event::DiffBaseChanged => {
10144 self.scrollbar_marker_state.dirty = true;
10145 cx.emit(EditorEvent::DiffBaseChanged);
10146 cx.notify();
10147 }
10148 multi_buffer::Event::DiffUpdated { buffer } => {
10149 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10150 cx.notify();
10151 }
10152 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10153 multi_buffer::Event::DiagnosticsUpdated => {
10154 self.refresh_active_diagnostics(cx);
10155 self.scrollbar_marker_state.dirty = true;
10156 cx.notify();
10157 }
10158 _ => {}
10159 };
10160 }
10161
10162 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10163 cx.notify();
10164 }
10165
10166 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10167 self.refresh_inline_completion(true, cx);
10168 self.refresh_inlay_hints(
10169 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10170 self.selections.newest_anchor().head(),
10171 &self.buffer.read(cx).snapshot(cx),
10172 cx,
10173 )),
10174 cx,
10175 );
10176 let editor_settings = EditorSettings::get_global(cx);
10177 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10178 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10179
10180 if self.mode == EditorMode::Full {
10181 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10182 if self.git_blame_inline_enabled != inline_blame_enabled {
10183 self.toggle_git_blame_inline_internal(false, cx);
10184 }
10185 }
10186
10187 cx.notify();
10188 }
10189
10190 pub fn set_searchable(&mut self, searchable: bool) {
10191 self.searchable = searchable;
10192 }
10193
10194 pub fn searchable(&self) -> bool {
10195 self.searchable
10196 }
10197
10198 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10199 self.open_excerpts_common(true, cx)
10200 }
10201
10202 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10203 self.open_excerpts_common(false, cx)
10204 }
10205
10206 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10207 let buffer = self.buffer.read(cx);
10208 if buffer.is_singleton() {
10209 cx.propagate();
10210 return;
10211 }
10212
10213 let Some(workspace) = self.workspace() else {
10214 cx.propagate();
10215 return;
10216 };
10217
10218 let mut new_selections_by_buffer = HashMap::default();
10219 for selection in self.selections.all::<usize>(cx) {
10220 for (buffer, mut range, _) in
10221 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10222 {
10223 if selection.reversed {
10224 mem::swap(&mut range.start, &mut range.end);
10225 }
10226 new_selections_by_buffer
10227 .entry(buffer)
10228 .or_insert(Vec::new())
10229 .push(range)
10230 }
10231 }
10232
10233 // We defer the pane interaction because we ourselves are a workspace item
10234 // and activating a new item causes the pane to call a method on us reentrantly,
10235 // which panics if we're on the stack.
10236 cx.window_context().defer(move |cx| {
10237 workspace.update(cx, |workspace, cx| {
10238 let pane = if split {
10239 workspace.adjacent_pane(cx)
10240 } else {
10241 workspace.active_pane().clone()
10242 };
10243
10244 for (buffer, ranges) in new_selections_by_buffer {
10245 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10246 editor.update(cx, |editor, cx| {
10247 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10248 s.select_ranges(ranges);
10249 });
10250 });
10251 }
10252 })
10253 });
10254 }
10255
10256 fn jump(
10257 &mut self,
10258 path: ProjectPath,
10259 position: Point,
10260 anchor: language::Anchor,
10261 offset_from_top: u32,
10262 cx: &mut ViewContext<Self>,
10263 ) {
10264 let workspace = self.workspace();
10265 cx.spawn(|_, mut cx| async move {
10266 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10267 let editor = workspace.update(&mut cx, |workspace, cx| {
10268 // Reset the preview item id before opening the new item
10269 workspace.active_pane().update(cx, |pane, cx| {
10270 pane.set_preview_item_id(None, cx);
10271 });
10272 workspace.open_path_preview(path, None, true, true, cx)
10273 })?;
10274 let editor = editor
10275 .await?
10276 .downcast::<Editor>()
10277 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10278 .downgrade();
10279 editor.update(&mut cx, |editor, cx| {
10280 let buffer = editor
10281 .buffer()
10282 .read(cx)
10283 .as_singleton()
10284 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10285 let buffer = buffer.read(cx);
10286 let cursor = if buffer.can_resolve(&anchor) {
10287 language::ToPoint::to_point(&anchor, buffer)
10288 } else {
10289 buffer.clip_point(position, Bias::Left)
10290 };
10291
10292 let nav_history = editor.nav_history.take();
10293 editor.change_selections(
10294 Some(Autoscroll::top_relative(offset_from_top as usize)),
10295 cx,
10296 |s| {
10297 s.select_ranges([cursor..cursor]);
10298 },
10299 );
10300 editor.nav_history = nav_history;
10301
10302 anyhow::Ok(())
10303 })??;
10304
10305 anyhow::Ok(())
10306 })
10307 .detach_and_log_err(cx);
10308 }
10309
10310 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10311 let snapshot = self.buffer.read(cx).read(cx);
10312 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10313 Some(
10314 ranges
10315 .iter()
10316 .map(move |range| {
10317 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10318 })
10319 .collect(),
10320 )
10321 }
10322
10323 fn selection_replacement_ranges(
10324 &self,
10325 range: Range<OffsetUtf16>,
10326 cx: &AppContext,
10327 ) -> Vec<Range<OffsetUtf16>> {
10328 let selections = self.selections.all::<OffsetUtf16>(cx);
10329 let newest_selection = selections
10330 .iter()
10331 .max_by_key(|selection| selection.id)
10332 .unwrap();
10333 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10334 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10335 let snapshot = self.buffer.read(cx).read(cx);
10336 selections
10337 .into_iter()
10338 .map(|mut selection| {
10339 selection.start.0 =
10340 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10341 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10342 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10343 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10344 })
10345 .collect()
10346 }
10347
10348 fn report_editor_event(
10349 &self,
10350 operation: &'static str,
10351 file_extension: Option<String>,
10352 cx: &AppContext,
10353 ) {
10354 if cfg!(any(test, feature = "test-support")) {
10355 return;
10356 }
10357
10358 let Some(project) = &self.project else { return };
10359
10360 // If None, we are in a file without an extension
10361 let file = self
10362 .buffer
10363 .read(cx)
10364 .as_singleton()
10365 .and_then(|b| b.read(cx).file());
10366 let file_extension = file_extension.or(file
10367 .as_ref()
10368 .and_then(|file| Path::new(file.file_name(cx)).extension())
10369 .and_then(|e| e.to_str())
10370 .map(|a| a.to_string()));
10371
10372 let vim_mode = cx
10373 .global::<SettingsStore>()
10374 .raw_user_settings()
10375 .get("vim_mode")
10376 == Some(&serde_json::Value::Bool(true));
10377
10378 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10379 == language::language_settings::InlineCompletionProvider::Copilot;
10380 let copilot_enabled_for_language = self
10381 .buffer
10382 .read(cx)
10383 .settings_at(0, cx)
10384 .show_inline_completions;
10385
10386 let telemetry = project.read(cx).client().telemetry().clone();
10387 telemetry.report_editor_event(
10388 file_extension,
10389 vim_mode,
10390 operation,
10391 copilot_enabled,
10392 copilot_enabled_for_language,
10393 )
10394 }
10395
10396 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10397 /// with each line being an array of {text, highlight} objects.
10398 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10399 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10400 return;
10401 };
10402
10403 #[derive(Serialize)]
10404 struct Chunk<'a> {
10405 text: String,
10406 highlight: Option<&'a str>,
10407 }
10408
10409 let snapshot = buffer.read(cx).snapshot();
10410 let range = self
10411 .selected_text_range(cx)
10412 .and_then(|selected_range| {
10413 if selected_range.is_empty() {
10414 None
10415 } else {
10416 Some(selected_range)
10417 }
10418 })
10419 .unwrap_or_else(|| 0..snapshot.len());
10420
10421 let chunks = snapshot.chunks(range, true);
10422 let mut lines = Vec::new();
10423 let mut line: VecDeque<Chunk> = VecDeque::new();
10424
10425 let Some(style) = self.style.as_ref() else {
10426 return;
10427 };
10428
10429 for chunk in chunks {
10430 let highlight = chunk
10431 .syntax_highlight_id
10432 .and_then(|id| id.name(&style.syntax));
10433 let mut chunk_lines = chunk.text.split('\n').peekable();
10434 while let Some(text) = chunk_lines.next() {
10435 let mut merged_with_last_token = false;
10436 if let Some(last_token) = line.back_mut() {
10437 if last_token.highlight == highlight {
10438 last_token.text.push_str(text);
10439 merged_with_last_token = true;
10440 }
10441 }
10442
10443 if !merged_with_last_token {
10444 line.push_back(Chunk {
10445 text: text.into(),
10446 highlight,
10447 });
10448 }
10449
10450 if chunk_lines.peek().is_some() {
10451 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10452 line.pop_front();
10453 }
10454 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10455 line.pop_back();
10456 }
10457
10458 lines.push(mem::take(&mut line));
10459 }
10460 }
10461 }
10462
10463 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10464 return;
10465 };
10466 cx.write_to_clipboard(ClipboardItem::new(lines));
10467 }
10468
10469 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10470 &self.inlay_hint_cache
10471 }
10472
10473 pub fn replay_insert_event(
10474 &mut self,
10475 text: &str,
10476 relative_utf16_range: Option<Range<isize>>,
10477 cx: &mut ViewContext<Self>,
10478 ) {
10479 if !self.input_enabled {
10480 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10481 return;
10482 }
10483 if let Some(relative_utf16_range) = relative_utf16_range {
10484 let selections = self.selections.all::<OffsetUtf16>(cx);
10485 self.change_selections(None, cx, |s| {
10486 let new_ranges = selections.into_iter().map(|range| {
10487 let start = OffsetUtf16(
10488 range
10489 .head()
10490 .0
10491 .saturating_add_signed(relative_utf16_range.start),
10492 );
10493 let end = OffsetUtf16(
10494 range
10495 .head()
10496 .0
10497 .saturating_add_signed(relative_utf16_range.end),
10498 );
10499 start..end
10500 });
10501 s.select_ranges(new_ranges);
10502 });
10503 }
10504
10505 self.handle_input(text, cx);
10506 }
10507
10508 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10509 let Some(project) = self.project.as_ref() else {
10510 return false;
10511 };
10512 let project = project.read(cx);
10513
10514 let mut supports = false;
10515 self.buffer().read(cx).for_each_buffer(|buffer| {
10516 if !supports {
10517 supports = project
10518 .language_servers_for_buffer(buffer.read(cx), cx)
10519 .any(
10520 |(_, server)| match server.capabilities().inlay_hint_provider {
10521 Some(lsp::OneOf::Left(enabled)) => enabled,
10522 Some(lsp::OneOf::Right(_)) => true,
10523 None => false,
10524 },
10525 )
10526 }
10527 });
10528 supports
10529 }
10530
10531 pub fn focus(&self, cx: &mut WindowContext) {
10532 cx.focus(&self.focus_handle)
10533 }
10534
10535 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10536 self.focus_handle.is_focused(cx)
10537 }
10538
10539 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10540 cx.emit(EditorEvent::Focused);
10541
10542 if let Some(rename) = self.pending_rename.as_ref() {
10543 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10544 cx.focus(&rename_editor_focus_handle);
10545 } else {
10546 if let Some(blame) = self.blame.as_ref() {
10547 blame.update(cx, GitBlame::focus)
10548 }
10549
10550 self.blink_manager.update(cx, BlinkManager::enable);
10551 self.show_cursor_names(cx);
10552 self.buffer.update(cx, |buffer, cx| {
10553 buffer.finalize_last_transaction(cx);
10554 if self.leader_peer_id.is_none() {
10555 buffer.set_active_selections(
10556 &self.selections.disjoint_anchors(),
10557 self.selections.line_mode,
10558 self.cursor_shape,
10559 cx,
10560 );
10561 }
10562 });
10563 }
10564 }
10565
10566 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10567 self.blink_manager.update(cx, BlinkManager::disable);
10568 self.buffer
10569 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10570
10571 if let Some(blame) = self.blame.as_ref() {
10572 blame.update(cx, GitBlame::blur)
10573 }
10574 self.hide_context_menu(cx);
10575 hide_hover(self, cx);
10576 cx.emit(EditorEvent::Blurred);
10577 cx.notify();
10578 }
10579
10580 pub fn register_action<A: Action>(
10581 &mut self,
10582 listener: impl Fn(&A, &mut WindowContext) + 'static,
10583 ) -> &mut Self {
10584 let listener = Arc::new(listener);
10585
10586 self.editor_actions.push(Box::new(move |cx| {
10587 let _view = cx.view().clone();
10588 let cx = cx.window_context();
10589 let listener = listener.clone();
10590 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10591 let action = action.downcast_ref().unwrap();
10592 if phase == DispatchPhase::Bubble {
10593 listener(action, cx)
10594 }
10595 })
10596 }));
10597 self
10598 }
10599}
10600
10601fn hunks_for_selections(
10602 multi_buffer_snapshot: &MultiBufferSnapshot,
10603 selections: &[Selection<Anchor>],
10604) -> Vec<DiffHunk<u32>> {
10605 let mut hunks = Vec::with_capacity(selections.len());
10606 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10607 HashMap::default();
10608 let display_rows_for_selections = selections.iter().map(|selection| {
10609 let head = selection.head();
10610 let tail = selection.tail();
10611 let start = tail.to_point(&multi_buffer_snapshot).row;
10612 let end = head.to_point(&multi_buffer_snapshot).row;
10613 if start > end {
10614 end..start
10615 } else {
10616 start..end
10617 }
10618 });
10619
10620 for selected_multi_buffer_rows in display_rows_for_selections {
10621 let query_rows = selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
10622 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10623 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10624 // when the caret is just above or just below the deleted hunk.
10625 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
10626 let related_to_selection = if allow_adjacent {
10627 hunk.associated_range.overlaps(&query_rows)
10628 || hunk.associated_range.start == query_rows.end
10629 || hunk.associated_range.end == query_rows.start
10630 } else {
10631 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10632 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10633 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10634 || selected_multi_buffer_rows.end == hunk.associated_range.start
10635 };
10636 if related_to_selection {
10637 if !processed_buffer_rows
10638 .entry(hunk.buffer_id)
10639 .or_default()
10640 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10641 {
10642 continue;
10643 }
10644 hunks.push(hunk);
10645 }
10646 }
10647 }
10648
10649 hunks
10650}
10651
10652pub trait CollaborationHub {
10653 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10654 fn user_participant_indices<'a>(
10655 &self,
10656 cx: &'a AppContext,
10657 ) -> &'a HashMap<u64, ParticipantIndex>;
10658 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10659}
10660
10661impl CollaborationHub for Model<Project> {
10662 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10663 self.read(cx).collaborators()
10664 }
10665
10666 fn user_participant_indices<'a>(
10667 &self,
10668 cx: &'a AppContext,
10669 ) -> &'a HashMap<u64, ParticipantIndex> {
10670 self.read(cx).user_store().read(cx).participant_indices()
10671 }
10672
10673 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10674 let this = self.read(cx);
10675 let user_ids = this.collaborators().values().map(|c| c.user_id);
10676 this.user_store().read_with(cx, |user_store, cx| {
10677 user_store.participant_names(user_ids, cx)
10678 })
10679 }
10680}
10681
10682pub trait CompletionProvider {
10683 fn completions(
10684 &self,
10685 buffer: &Model<Buffer>,
10686 buffer_position: text::Anchor,
10687 cx: &mut ViewContext<Editor>,
10688 ) -> Task<Result<Vec<Completion>>>;
10689
10690 fn resolve_completions(
10691 &self,
10692 buffer: Model<Buffer>,
10693 completion_indices: Vec<usize>,
10694 completions: Arc<RwLock<Box<[Completion]>>>,
10695 cx: &mut ViewContext<Editor>,
10696 ) -> Task<Result<bool>>;
10697
10698 fn apply_additional_edits_for_completion(
10699 &self,
10700 buffer: Model<Buffer>,
10701 completion: Completion,
10702 push_to_history: bool,
10703 cx: &mut ViewContext<Editor>,
10704 ) -> Task<Result<Option<language::Transaction>>>;
10705}
10706
10707impl CompletionProvider for Model<Project> {
10708 fn completions(
10709 &self,
10710 buffer: &Model<Buffer>,
10711 buffer_position: text::Anchor,
10712 cx: &mut ViewContext<Editor>,
10713 ) -> Task<Result<Vec<Completion>>> {
10714 self.update(cx, |project, cx| {
10715 project.completions(&buffer, buffer_position, cx)
10716 })
10717 }
10718
10719 fn resolve_completions(
10720 &self,
10721 buffer: Model<Buffer>,
10722 completion_indices: Vec<usize>,
10723 completions: Arc<RwLock<Box<[Completion]>>>,
10724 cx: &mut ViewContext<Editor>,
10725 ) -> Task<Result<bool>> {
10726 self.update(cx, |project, cx| {
10727 project.resolve_completions(buffer, completion_indices, completions, cx)
10728 })
10729 }
10730
10731 fn apply_additional_edits_for_completion(
10732 &self,
10733 buffer: Model<Buffer>,
10734 completion: Completion,
10735 push_to_history: bool,
10736 cx: &mut ViewContext<Editor>,
10737 ) -> Task<Result<Option<language::Transaction>>> {
10738 self.update(cx, |project, cx| {
10739 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10740 })
10741 }
10742}
10743
10744fn inlay_hint_settings(
10745 location: Anchor,
10746 snapshot: &MultiBufferSnapshot,
10747 cx: &mut ViewContext<'_, Editor>,
10748) -> InlayHintSettings {
10749 let file = snapshot.file_at(location);
10750 let language = snapshot.language_at(location);
10751 let settings = all_language_settings(file, cx);
10752 settings
10753 .language(language.map(|l| l.name()).as_deref())
10754 .inlay_hints
10755}
10756
10757fn consume_contiguous_rows(
10758 contiguous_row_selections: &mut Vec<Selection<Point>>,
10759 selection: &Selection<Point>,
10760 display_map: &DisplaySnapshot,
10761 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10762) -> (u32, u32) {
10763 contiguous_row_selections.push(selection.clone());
10764 let start_row = selection.start.row;
10765 let mut end_row = ending_row(selection, display_map);
10766
10767 while let Some(next_selection) = selections.peek() {
10768 if next_selection.start.row <= end_row {
10769 end_row = ending_row(next_selection, display_map);
10770 contiguous_row_selections.push(selections.next().unwrap().clone());
10771 } else {
10772 break;
10773 }
10774 }
10775 (start_row, end_row)
10776}
10777
10778fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10779 if next_selection.end.column > 0 || next_selection.is_empty() {
10780 display_map.next_line_boundary(next_selection.end).0.row + 1
10781 } else {
10782 next_selection.end.row
10783 }
10784}
10785
10786impl EditorSnapshot {
10787 pub fn remote_selections_in_range<'a>(
10788 &'a self,
10789 range: &'a Range<Anchor>,
10790 collaboration_hub: &dyn CollaborationHub,
10791 cx: &'a AppContext,
10792 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10793 let participant_names = collaboration_hub.user_names(cx);
10794 let participant_indices = collaboration_hub.user_participant_indices(cx);
10795 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10796 let collaborators_by_replica_id = collaborators_by_peer_id
10797 .iter()
10798 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10799 .collect::<HashMap<_, _>>();
10800 self.buffer_snapshot
10801 .remote_selections_in_range(range)
10802 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10803 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10804 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10805 let user_name = participant_names.get(&collaborator.user_id).cloned();
10806 Some(RemoteSelection {
10807 replica_id,
10808 selection,
10809 cursor_shape,
10810 line_mode,
10811 participant_index,
10812 peer_id: collaborator.peer_id,
10813 user_name,
10814 })
10815 })
10816 }
10817
10818 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10819 self.display_snapshot.buffer_snapshot.language_at(position)
10820 }
10821
10822 pub fn is_focused(&self) -> bool {
10823 self.is_focused
10824 }
10825
10826 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10827 self.placeholder_text.as_ref()
10828 }
10829
10830 pub fn scroll_position(&self) -> gpui::Point<f32> {
10831 self.scroll_anchor.scroll_position(&self.display_snapshot)
10832 }
10833
10834 pub fn gutter_dimensions(
10835 &self,
10836 font_id: FontId,
10837 font_size: Pixels,
10838 em_width: Pixels,
10839 max_line_number_width: Pixels,
10840 cx: &AppContext,
10841 ) -> GutterDimensions {
10842 if !self.show_gutter {
10843 return GutterDimensions::default();
10844 }
10845 let descent = cx.text_system().descent(font_id, font_size);
10846
10847 let show_git_gutter = matches!(
10848 ProjectSettings::get_global(cx).git.git_gutter,
10849 Some(GitGutterSetting::TrackedFiles)
10850 );
10851 let gutter_settings = EditorSettings::get_global(cx).gutter;
10852 let gutter_lines_enabled = gutter_settings.line_numbers;
10853 let line_gutter_width = if gutter_lines_enabled {
10854 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10855 let min_width_for_number_on_gutter = em_width * 4.0;
10856 max_line_number_width.max(min_width_for_number_on_gutter)
10857 } else {
10858 0.0.into()
10859 };
10860
10861 let git_blame_entries_width = self
10862 .render_git_blame_gutter
10863 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10864
10865 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10866 left_padding += if gutter_settings.code_actions {
10867 em_width * 3.0
10868 } else if show_git_gutter && gutter_lines_enabled {
10869 em_width * 2.0
10870 } else if show_git_gutter || gutter_lines_enabled {
10871 em_width
10872 } else {
10873 px(0.)
10874 };
10875
10876 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10877 em_width * 4.0
10878 } else if gutter_settings.folds {
10879 em_width * 3.0
10880 } else if gutter_lines_enabled {
10881 em_width
10882 } else {
10883 px(0.)
10884 };
10885
10886 GutterDimensions {
10887 left_padding,
10888 right_padding,
10889 width: line_gutter_width + left_padding + right_padding,
10890 margin: -descent,
10891 git_blame_entries_width,
10892 }
10893 }
10894}
10895
10896impl Deref for EditorSnapshot {
10897 type Target = DisplaySnapshot;
10898
10899 fn deref(&self) -> &Self::Target {
10900 &self.display_snapshot
10901 }
10902}
10903
10904#[derive(Clone, Debug, PartialEq, Eq)]
10905pub enum EditorEvent {
10906 InputIgnored {
10907 text: Arc<str>,
10908 },
10909 InputHandled {
10910 utf16_range_to_replace: Option<Range<isize>>,
10911 text: Arc<str>,
10912 },
10913 ExcerptsAdded {
10914 buffer: Model<Buffer>,
10915 predecessor: ExcerptId,
10916 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10917 },
10918 ExcerptsRemoved {
10919 ids: Vec<ExcerptId>,
10920 },
10921 BufferEdited,
10922 Edited,
10923 Reparsed,
10924 Focused,
10925 Blurred,
10926 DirtyChanged,
10927 Saved,
10928 TitleChanged,
10929 DiffBaseChanged,
10930 SelectionsChanged {
10931 local: bool,
10932 },
10933 ScrollPositionChanged {
10934 local: bool,
10935 autoscroll: bool,
10936 },
10937 Closed,
10938 TransactionUndone {
10939 transaction_id: clock::Lamport,
10940 },
10941 TransactionBegun {
10942 transaction_id: clock::Lamport,
10943 },
10944}
10945
10946impl EventEmitter<EditorEvent> for Editor {}
10947
10948impl FocusableView for Editor {
10949 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10950 self.focus_handle.clone()
10951 }
10952}
10953
10954impl Render for Editor {
10955 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10956 let settings = ThemeSettings::get_global(cx);
10957
10958 let text_style = match self.mode {
10959 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10960 color: cx.theme().colors().editor_foreground,
10961 font_family: settings.ui_font.family.clone(),
10962 font_features: settings.ui_font.features.clone(),
10963 font_size: rems(0.875).into(),
10964 font_weight: FontWeight::NORMAL,
10965 font_style: FontStyle::Normal,
10966 line_height: relative(settings.buffer_line_height.value()),
10967 background_color: None,
10968 underline: None,
10969 strikethrough: None,
10970 white_space: WhiteSpace::Normal,
10971 },
10972 EditorMode::Full => TextStyle {
10973 color: cx.theme().colors().editor_foreground,
10974 font_family: settings.buffer_font.family.clone(),
10975 font_features: settings.buffer_font.features.clone(),
10976 font_size: settings.buffer_font_size(cx).into(),
10977 font_weight: FontWeight::NORMAL,
10978 font_style: FontStyle::Normal,
10979 line_height: relative(settings.buffer_line_height.value()),
10980 background_color: None,
10981 underline: None,
10982 strikethrough: None,
10983 white_space: WhiteSpace::Normal,
10984 },
10985 };
10986
10987 let background = match self.mode {
10988 EditorMode::SingleLine => cx.theme().system().transparent,
10989 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10990 EditorMode::Full => cx.theme().colors().editor_background,
10991 };
10992
10993 EditorElement::new(
10994 cx.view(),
10995 EditorStyle {
10996 background,
10997 local_player: cx.theme().players().local(),
10998 text: text_style,
10999 scrollbar_width: px(13.),
11000 syntax: cx.theme().syntax().clone(),
11001 status: cx.theme().status().clone(),
11002 inlay_hints_style: HighlightStyle {
11003 color: Some(cx.theme().status().hint),
11004 ..HighlightStyle::default()
11005 },
11006 suggestions_style: HighlightStyle {
11007 color: Some(cx.theme().status().predictive),
11008 ..HighlightStyle::default()
11009 },
11010 },
11011 )
11012 }
11013}
11014
11015impl ViewInputHandler for Editor {
11016 fn text_for_range(
11017 &mut self,
11018 range_utf16: Range<usize>,
11019 cx: &mut ViewContext<Self>,
11020 ) -> Option<String> {
11021 Some(
11022 self.buffer
11023 .read(cx)
11024 .read(cx)
11025 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11026 .collect(),
11027 )
11028 }
11029
11030 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11031 // Prevent the IME menu from appearing when holding down an alphabetic key
11032 // while input is disabled.
11033 if !self.input_enabled {
11034 return None;
11035 }
11036
11037 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11038 Some(range.start.0..range.end.0)
11039 }
11040
11041 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11042 let snapshot = self.buffer.read(cx).read(cx);
11043 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11044 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11045 }
11046
11047 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11048 self.clear_highlights::<InputComposition>(cx);
11049 self.ime_transaction.take();
11050 }
11051
11052 fn replace_text_in_range(
11053 &mut self,
11054 range_utf16: Option<Range<usize>>,
11055 text: &str,
11056 cx: &mut ViewContext<Self>,
11057 ) {
11058 if !self.input_enabled {
11059 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11060 return;
11061 }
11062
11063 self.transact(cx, |this, cx| {
11064 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11065 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11066 Some(this.selection_replacement_ranges(range_utf16, cx))
11067 } else {
11068 this.marked_text_ranges(cx)
11069 };
11070
11071 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11072 let newest_selection_id = this.selections.newest_anchor().id;
11073 this.selections
11074 .all::<OffsetUtf16>(cx)
11075 .iter()
11076 .zip(ranges_to_replace.iter())
11077 .find_map(|(selection, range)| {
11078 if selection.id == newest_selection_id {
11079 Some(
11080 (range.start.0 as isize - selection.head().0 as isize)
11081 ..(range.end.0 as isize - selection.head().0 as isize),
11082 )
11083 } else {
11084 None
11085 }
11086 })
11087 });
11088
11089 cx.emit(EditorEvent::InputHandled {
11090 utf16_range_to_replace: range_to_replace,
11091 text: text.into(),
11092 });
11093
11094 if let Some(new_selected_ranges) = new_selected_ranges {
11095 this.change_selections(None, cx, |selections| {
11096 selections.select_ranges(new_selected_ranges)
11097 });
11098 this.backspace(&Default::default(), cx);
11099 }
11100
11101 this.handle_input(text, cx);
11102 });
11103
11104 if let Some(transaction) = self.ime_transaction {
11105 self.buffer.update(cx, |buffer, cx| {
11106 buffer.group_until_transaction(transaction, cx);
11107 });
11108 }
11109
11110 self.unmark_text(cx);
11111 }
11112
11113 fn replace_and_mark_text_in_range(
11114 &mut self,
11115 range_utf16: Option<Range<usize>>,
11116 text: &str,
11117 new_selected_range_utf16: Option<Range<usize>>,
11118 cx: &mut ViewContext<Self>,
11119 ) {
11120 if !self.input_enabled {
11121 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11122 return;
11123 }
11124
11125 let transaction = self.transact(cx, |this, cx| {
11126 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11127 let snapshot = this.buffer.read(cx).read(cx);
11128 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11129 for marked_range in &mut marked_ranges {
11130 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11131 marked_range.start.0 += relative_range_utf16.start;
11132 marked_range.start =
11133 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11134 marked_range.end =
11135 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11136 }
11137 }
11138 Some(marked_ranges)
11139 } else if let Some(range_utf16) = range_utf16 {
11140 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11141 Some(this.selection_replacement_ranges(range_utf16, cx))
11142 } else {
11143 None
11144 };
11145
11146 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11147 let newest_selection_id = this.selections.newest_anchor().id;
11148 this.selections
11149 .all::<OffsetUtf16>(cx)
11150 .iter()
11151 .zip(ranges_to_replace.iter())
11152 .find_map(|(selection, range)| {
11153 if selection.id == newest_selection_id {
11154 Some(
11155 (range.start.0 as isize - selection.head().0 as isize)
11156 ..(range.end.0 as isize - selection.head().0 as isize),
11157 )
11158 } else {
11159 None
11160 }
11161 })
11162 });
11163
11164 cx.emit(EditorEvent::InputHandled {
11165 utf16_range_to_replace: range_to_replace,
11166 text: text.into(),
11167 });
11168
11169 if let Some(ranges) = ranges_to_replace {
11170 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11171 }
11172
11173 let marked_ranges = {
11174 let snapshot = this.buffer.read(cx).read(cx);
11175 this.selections
11176 .disjoint_anchors()
11177 .iter()
11178 .map(|selection| {
11179 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11180 })
11181 .collect::<Vec<_>>()
11182 };
11183
11184 if text.is_empty() {
11185 this.unmark_text(cx);
11186 } else {
11187 this.highlight_text::<InputComposition>(
11188 marked_ranges.clone(),
11189 HighlightStyle {
11190 underline: Some(UnderlineStyle {
11191 thickness: px(1.),
11192 color: None,
11193 wavy: false,
11194 }),
11195 ..Default::default()
11196 },
11197 cx,
11198 );
11199 }
11200
11201 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11202 let use_autoclose = this.use_autoclose;
11203 this.set_use_autoclose(false);
11204 this.handle_input(text, cx);
11205 this.set_use_autoclose(use_autoclose);
11206
11207 if let Some(new_selected_range) = new_selected_range_utf16 {
11208 let snapshot = this.buffer.read(cx).read(cx);
11209 let new_selected_ranges = marked_ranges
11210 .into_iter()
11211 .map(|marked_range| {
11212 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11213 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11214 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11215 snapshot.clip_offset_utf16(new_start, Bias::Left)
11216 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11217 })
11218 .collect::<Vec<_>>();
11219
11220 drop(snapshot);
11221 this.change_selections(None, cx, |selections| {
11222 selections.select_ranges(new_selected_ranges)
11223 });
11224 }
11225 });
11226
11227 self.ime_transaction = self.ime_transaction.or(transaction);
11228 if let Some(transaction) = self.ime_transaction {
11229 self.buffer.update(cx, |buffer, cx| {
11230 buffer.group_until_transaction(transaction, cx);
11231 });
11232 }
11233
11234 if self.text_highlights::<InputComposition>(cx).is_none() {
11235 self.ime_transaction.take();
11236 }
11237 }
11238
11239 fn bounds_for_range(
11240 &mut self,
11241 range_utf16: Range<usize>,
11242 element_bounds: gpui::Bounds<Pixels>,
11243 cx: &mut ViewContext<Self>,
11244 ) -> Option<gpui::Bounds<Pixels>> {
11245 let text_layout_details = self.text_layout_details(cx);
11246 let style = &text_layout_details.editor_style;
11247 let font_id = cx.text_system().resolve_font(&style.text.font());
11248 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11249 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11250 let em_width = cx
11251 .text_system()
11252 .typographic_bounds(font_id, font_size, 'm')
11253 .unwrap()
11254 .size
11255 .width;
11256
11257 let snapshot = self.snapshot(cx);
11258 let scroll_position = snapshot.scroll_position();
11259 let scroll_left = scroll_position.x * em_width;
11260
11261 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11262 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11263 + self.gutter_dimensions.width;
11264 let y = line_height * (start.row() as f32 - scroll_position.y);
11265
11266 Some(Bounds {
11267 origin: element_bounds.origin + point(x, y),
11268 size: size(em_width, line_height),
11269 })
11270 }
11271}
11272
11273trait SelectionExt {
11274 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11275 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
11276 -> Range<u32>;
11277}
11278
11279impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11280 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11281 let start = self
11282 .start
11283 .to_point(&map.buffer_snapshot)
11284 .to_display_point(map);
11285 let end = self
11286 .end
11287 .to_point(&map.buffer_snapshot)
11288 .to_display_point(map);
11289 if self.reversed {
11290 end..start
11291 } else {
11292 start..end
11293 }
11294 }
11295
11296 fn spanned_rows(
11297 &self,
11298 include_end_if_at_line_start: bool,
11299 map: &DisplaySnapshot,
11300 ) -> Range<u32> {
11301 let start = self.start.to_point(&map.buffer_snapshot);
11302 let mut end = self.end.to_point(&map.buffer_snapshot);
11303 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11304 end.row -= 1;
11305 }
11306
11307 let buffer_start = map.prev_line_boundary(start).0;
11308 let buffer_end = map.next_line_boundary(end).0;
11309 buffer_start.row..buffer_end.row + 1
11310 }
11311}
11312
11313impl<T: InvalidationRegion> InvalidationStack<T> {
11314 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11315 where
11316 S: Clone + ToOffset,
11317 {
11318 while let Some(region) = self.last() {
11319 let all_selections_inside_invalidation_ranges =
11320 if selections.len() == region.ranges().len() {
11321 selections
11322 .iter()
11323 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11324 .all(|(selection, invalidation_range)| {
11325 let head = selection.head().to_offset(buffer);
11326 invalidation_range.start <= head && invalidation_range.end >= head
11327 })
11328 } else {
11329 false
11330 };
11331
11332 if all_selections_inside_invalidation_ranges {
11333 break;
11334 } else {
11335 self.pop();
11336 }
11337 }
11338 }
11339}
11340
11341impl<T> Default for InvalidationStack<T> {
11342 fn default() -> Self {
11343 Self(Default::default())
11344 }
11345}
11346
11347impl<T> Deref for InvalidationStack<T> {
11348 type Target = Vec<T>;
11349
11350 fn deref(&self) -> &Self::Target {
11351 &self.0
11352 }
11353}
11354
11355impl<T> DerefMut for InvalidationStack<T> {
11356 fn deref_mut(&mut self) -> &mut Self::Target {
11357 &mut self.0
11358 }
11359}
11360
11361impl InvalidationRegion for SnippetState {
11362 fn ranges(&self) -> &[Range<Anchor>] {
11363 &self.ranges[self.active_index]
11364 }
11365}
11366
11367pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11368 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11369
11370 Box::new(move |cx: &mut BlockContext| {
11371 let group_id: SharedString = cx.block_id.to_string().into();
11372
11373 let mut text_style = cx.text_style().clone();
11374 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11375 let theme_settings = ThemeSettings::get_global(cx);
11376 text_style.font_family = theme_settings.buffer_font.family.clone();
11377 text_style.font_style = theme_settings.buffer_font.style;
11378 text_style.font_features = theme_settings.buffer_font.features.clone();
11379 text_style.font_weight = theme_settings.buffer_font.weight;
11380
11381 let multi_line_diagnostic = diagnostic.message.contains('\n');
11382
11383 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11384 if multi_line_diagnostic {
11385 v_flex()
11386 } else {
11387 h_flex()
11388 }
11389 .children(diagnostic.is_primary.then(|| {
11390 IconButton::new(("close-block", block_id), IconName::XCircle)
11391 .icon_color(Color::Muted)
11392 .size(ButtonSize::Compact)
11393 .style(ButtonStyle::Transparent)
11394 .visible_on_hover(group_id.clone())
11395 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11396 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11397 }))
11398 .child(
11399 IconButton::new(("copy-block", block_id), IconName::Copy)
11400 .icon_color(Color::Muted)
11401 .size(ButtonSize::Compact)
11402 .style(ButtonStyle::Transparent)
11403 .visible_on_hover(group_id.clone())
11404 .on_click({
11405 let message = diagnostic.message.clone();
11406 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11407 })
11408 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11409 )
11410 };
11411
11412 let icon_size = buttons(&diagnostic, cx.block_id)
11413 .into_any_element()
11414 .layout_as_root(AvailableSpace::min_size(), cx);
11415
11416 h_flex()
11417 .id(cx.block_id)
11418 .group(group_id.clone())
11419 .relative()
11420 .size_full()
11421 .pl(cx.gutter_dimensions.width)
11422 .w(cx.max_width + cx.gutter_dimensions.width)
11423 .child(
11424 div()
11425 .flex()
11426 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11427 .flex_shrink(),
11428 )
11429 .child(buttons(&diagnostic, cx.block_id))
11430 .child(div().flex().flex_shrink_0().child(
11431 StyledText::new(text_without_backticks.clone()).with_highlights(
11432 &text_style,
11433 code_ranges.iter().map(|range| {
11434 (
11435 range.clone(),
11436 HighlightStyle {
11437 font_weight: Some(FontWeight::BOLD),
11438 ..Default::default()
11439 },
11440 )
11441 }),
11442 ),
11443 ))
11444 .into_any_element()
11445 })
11446}
11447
11448pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11449 let mut text_without_backticks = String::new();
11450 let mut code_ranges = Vec::new();
11451
11452 if let Some(source) = &diagnostic.source {
11453 text_without_backticks.push_str(&source);
11454 code_ranges.push(0..source.len());
11455 text_without_backticks.push_str(": ");
11456 }
11457
11458 let mut prev_offset = 0;
11459 let mut in_code_block = false;
11460 for (ix, _) in diagnostic
11461 .message
11462 .match_indices('`')
11463 .chain([(diagnostic.message.len(), "")])
11464 {
11465 let prev_len = text_without_backticks.len();
11466 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11467 prev_offset = ix + 1;
11468 if in_code_block {
11469 code_ranges.push(prev_len..text_without_backticks.len());
11470 in_code_block = false;
11471 } else {
11472 in_code_block = true;
11473 }
11474 }
11475
11476 (text_without_backticks.into(), code_ranges)
11477}
11478
11479fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11480 match (severity, valid) {
11481 (DiagnosticSeverity::ERROR, true) => colors.error,
11482 (DiagnosticSeverity::ERROR, false) => colors.error,
11483 (DiagnosticSeverity::WARNING, true) => colors.warning,
11484 (DiagnosticSeverity::WARNING, false) => colors.warning,
11485 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11486 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11487 (DiagnosticSeverity::HINT, true) => colors.info,
11488 (DiagnosticSeverity::HINT, false) => colors.info,
11489 _ => colors.ignored,
11490 }
11491}
11492
11493pub fn styled_runs_for_code_label<'a>(
11494 label: &'a CodeLabel,
11495 syntax_theme: &'a theme::SyntaxTheme,
11496) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11497 let fade_out = HighlightStyle {
11498 fade_out: Some(0.35),
11499 ..Default::default()
11500 };
11501
11502 let mut prev_end = label.filter_range.end;
11503 label
11504 .runs
11505 .iter()
11506 .enumerate()
11507 .flat_map(move |(ix, (range, highlight_id))| {
11508 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11509 style
11510 } else {
11511 return Default::default();
11512 };
11513 let mut muted_style = style;
11514 muted_style.highlight(fade_out);
11515
11516 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11517 if range.start >= label.filter_range.end {
11518 if range.start > prev_end {
11519 runs.push((prev_end..range.start, fade_out));
11520 }
11521 runs.push((range.clone(), muted_style));
11522 } else if range.end <= label.filter_range.end {
11523 runs.push((range.clone(), style));
11524 } else {
11525 runs.push((range.start..label.filter_range.end, style));
11526 runs.push((label.filter_range.end..range.end, muted_style));
11527 }
11528 prev_end = cmp::max(prev_end, range.end);
11529
11530 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11531 runs.push((prev_end..label.text.len(), fade_out));
11532 }
11533
11534 runs
11535 })
11536}
11537
11538pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11539 let mut prev_index = 0;
11540 let mut prev_codepoint: Option<char> = None;
11541 text.char_indices()
11542 .chain([(text.len(), '\0')])
11543 .filter_map(move |(index, codepoint)| {
11544 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11545 let is_boundary = index == text.len()
11546 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11547 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11548 if is_boundary {
11549 let chunk = &text[prev_index..index];
11550 prev_index = index;
11551 Some(chunk)
11552 } else {
11553 None
11554 }
11555 })
11556}
11557
11558trait RangeToAnchorExt {
11559 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11560}
11561
11562impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11563 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11564 let start_offset = self.start.to_offset(snapshot);
11565 let end_offset = self.end.to_offset(snapshot);
11566 if start_offset == end_offset {
11567 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11568 } else {
11569 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11570 }
11571 }
11572}