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::{
83 char_kind,
84 language_settings::{self, all_language_settings, InlayHintSettings},
85 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
86 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
87 Point, Selection, SelectionGoal, TransactionId,
88};
89use language::{BufferRow, Runnable, RunnableRange};
90use task::{ResolvedTask, TaskTemplate, TaskVariables};
91
92use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
93use lsp::{DiagnosticSeverity, LanguageServerId};
94use mouse_context_menu::MouseContextMenu;
95use movement::TextLayoutDetails;
96pub use multi_buffer::{
97 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
98 ToPoint,
99};
100use multi_buffer::{MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
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 extra_variables: HashMap<String, String>,
408}
409
410#[derive(Clone)]
411struct ResolvedTasks {
412 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
413 position: Anchor,
414}
415
416/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
417///
418/// See the [module level documentation](self) for more information.
419pub struct Editor {
420 focus_handle: FocusHandle,
421 /// The text buffer being edited
422 buffer: Model<MultiBuffer>,
423 /// Map of how text in the buffer should be displayed.
424 /// Handles soft wraps, folds, fake inlay text insertions, etc.
425 pub display_map: Model<DisplayMap>,
426 pub selections: SelectionsCollection,
427 pub scroll_manager: ScrollManager,
428 columnar_selection_tail: Option<Anchor>,
429 add_selections_state: Option<AddSelectionsState>,
430 select_next_state: Option<SelectNextState>,
431 select_prev_state: Option<SelectNextState>,
432 selection_history: SelectionHistory,
433 autoclose_regions: Vec<AutocloseRegion>,
434 snippet_stack: InvalidationStack<SnippetState>,
435 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
436 ime_transaction: Option<TransactionId>,
437 active_diagnostics: Option<ActiveDiagnosticGroup>,
438 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
439 project: Option<Model<Project>>,
440 completion_provider: Option<Box<dyn CompletionProvider>>,
441 collaboration_hub: Option<Box<dyn CollaborationHub>>,
442 blink_manager: Model<BlinkManager>,
443 show_cursor_names: bool,
444 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
445 pub show_local_selections: bool,
446 mode: EditorMode,
447 show_breadcrumbs: bool,
448 show_gutter: bool,
449 show_wrap_guides: Option<bool>,
450 placeholder_text: Option<Arc<str>>,
451 highlight_order: usize,
452 highlighted_rows: HashMap<TypeId, Vec<(usize, RangeInclusive<Anchor>, Option<Hsla>)>>,
453 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
454 scrollbar_marker_state: ScrollbarMarkerState,
455 nav_history: Option<ItemNavHistory>,
456 context_menu: RwLock<Option<ContextMenu>>,
457 mouse_context_menu: Option<MouseContextMenu>,
458 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
459 find_all_references_task_sources: Vec<Anchor>,
460 next_completion_id: CompletionId,
461 completion_documentation_pre_resolve_debounce: DebouncedDelay,
462 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
463 code_actions_task: Option<Task<()>>,
464 document_highlights_task: Option<Task<()>>,
465 pending_rename: Option<RenameState>,
466 searchable: bool,
467 cursor_shape: CursorShape,
468 collapse_matches: bool,
469 autoindent_mode: Option<AutoindentMode>,
470 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
471 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
472 input_enabled: bool,
473 use_modal_editing: bool,
474 read_only: bool,
475 leader_peer_id: Option<PeerId>,
476 remote_id: Option<ViewId>,
477 hover_state: HoverState,
478 gutter_hovered: bool,
479 hovered_link_state: Option<HoveredLinkState>,
480 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
481 active_inline_completion: Option<Inlay>,
482 show_inline_completions: bool,
483 inlay_hint_cache: InlayHintCache,
484 expanded_hunks: ExpandedHunks,
485 next_inlay_id: usize,
486 _subscriptions: Vec<Subscription>,
487 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
488 gutter_dimensions: GutterDimensions,
489 pub vim_replace_map: HashMap<Range<usize>, String>,
490 style: Option<EditorStyle>,
491 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
492 use_autoclose: bool,
493 auto_replace_emoji_shortcode: bool,
494 show_git_blame_gutter: bool,
495 show_git_blame_inline: bool,
496 show_git_blame_inline_delay_task: Option<Task<()>>,
497 git_blame_inline_enabled: bool,
498 blame: Option<Model<GitBlame>>,
499 blame_subscription: Option<Subscription>,
500 custom_context_menu: Option<
501 Box<
502 dyn 'static
503 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
504 >,
505 >,
506 last_bounds: Option<Bounds<Pixels>>,
507 expect_bounds_change: Option<Bounds<Pixels>>,
508 tasks: HashMap<(BufferId, BufferRow), (usize, RunnableTasks)>,
509 tasks_update_task: Option<Task<()>>,
510}
511
512#[derive(Clone)]
513pub struct EditorSnapshot {
514 pub mode: EditorMode,
515 show_gutter: bool,
516 render_git_blame_gutter: bool,
517 pub display_snapshot: DisplaySnapshot,
518 pub placeholder_text: Option<Arc<str>>,
519 is_focused: bool,
520 scroll_anchor: ScrollAnchor,
521 ongoing_scroll: OngoingScroll,
522}
523
524const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
525
526#[derive(Debug, Clone, Copy)]
527pub struct GutterDimensions {
528 pub left_padding: Pixels,
529 pub right_padding: Pixels,
530 pub width: Pixels,
531 pub margin: Pixels,
532 pub git_blame_entries_width: Option<Pixels>,
533}
534
535impl Default for GutterDimensions {
536 fn default() -> Self {
537 Self {
538 left_padding: Pixels::ZERO,
539 right_padding: Pixels::ZERO,
540 width: Pixels::ZERO,
541 margin: Pixels::ZERO,
542 git_blame_entries_width: None,
543 }
544 }
545}
546
547#[derive(Debug)]
548pub struct RemoteSelection {
549 pub replica_id: ReplicaId,
550 pub selection: Selection<Anchor>,
551 pub cursor_shape: CursorShape,
552 pub peer_id: PeerId,
553 pub line_mode: bool,
554 pub participant_index: Option<ParticipantIndex>,
555 pub user_name: Option<SharedString>,
556}
557
558#[derive(Clone, Debug)]
559struct SelectionHistoryEntry {
560 selections: Arc<[Selection<Anchor>]>,
561 select_next_state: Option<SelectNextState>,
562 select_prev_state: Option<SelectNextState>,
563 add_selections_state: Option<AddSelectionsState>,
564}
565
566enum SelectionHistoryMode {
567 Normal,
568 Undoing,
569 Redoing,
570}
571
572#[derive(Clone, PartialEq, Eq, Hash)]
573struct HoveredCursor {
574 replica_id: u16,
575 selection_id: usize,
576}
577
578impl Default for SelectionHistoryMode {
579 fn default() -> Self {
580 Self::Normal
581 }
582}
583
584#[derive(Default)]
585struct SelectionHistory {
586 #[allow(clippy::type_complexity)]
587 selections_by_transaction:
588 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
589 mode: SelectionHistoryMode,
590 undo_stack: VecDeque<SelectionHistoryEntry>,
591 redo_stack: VecDeque<SelectionHistoryEntry>,
592}
593
594impl SelectionHistory {
595 fn insert_transaction(
596 &mut self,
597 transaction_id: TransactionId,
598 selections: Arc<[Selection<Anchor>]>,
599 ) {
600 self.selections_by_transaction
601 .insert(transaction_id, (selections, None));
602 }
603
604 #[allow(clippy::type_complexity)]
605 fn transaction(
606 &self,
607 transaction_id: TransactionId,
608 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
609 self.selections_by_transaction.get(&transaction_id)
610 }
611
612 #[allow(clippy::type_complexity)]
613 fn transaction_mut(
614 &mut self,
615 transaction_id: TransactionId,
616 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
617 self.selections_by_transaction.get_mut(&transaction_id)
618 }
619
620 fn push(&mut self, entry: SelectionHistoryEntry) {
621 if !entry.selections.is_empty() {
622 match self.mode {
623 SelectionHistoryMode::Normal => {
624 self.push_undo(entry);
625 self.redo_stack.clear();
626 }
627 SelectionHistoryMode::Undoing => self.push_redo(entry),
628 SelectionHistoryMode::Redoing => self.push_undo(entry),
629 }
630 }
631 }
632
633 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
634 if self
635 .undo_stack
636 .back()
637 .map_or(true, |e| e.selections != entry.selections)
638 {
639 self.undo_stack.push_back(entry);
640 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
641 self.undo_stack.pop_front();
642 }
643 }
644 }
645
646 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
647 if self
648 .redo_stack
649 .back()
650 .map_or(true, |e| e.selections != entry.selections)
651 {
652 self.redo_stack.push_back(entry);
653 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
654 self.redo_stack.pop_front();
655 }
656 }
657 }
658}
659
660#[derive(Clone, Debug)]
661struct AddSelectionsState {
662 above: bool,
663 stack: Vec<usize>,
664}
665
666#[derive(Clone)]
667struct SelectNextState {
668 query: AhoCorasick,
669 wordwise: bool,
670 done: bool,
671}
672
673impl std::fmt::Debug for SelectNextState {
674 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
675 f.debug_struct(std::any::type_name::<Self>())
676 .field("wordwise", &self.wordwise)
677 .field("done", &self.done)
678 .finish()
679 }
680}
681
682#[derive(Debug)]
683struct AutocloseRegion {
684 selection_id: usize,
685 range: Range<Anchor>,
686 pair: BracketPair,
687}
688
689#[derive(Debug)]
690struct SnippetState {
691 ranges: Vec<Vec<Range<Anchor>>>,
692 active_index: usize,
693}
694
695#[doc(hidden)]
696pub struct RenameState {
697 pub range: Range<Anchor>,
698 pub old_name: Arc<str>,
699 pub editor: View<Editor>,
700 block_id: BlockId,
701}
702
703struct InvalidationStack<T>(Vec<T>);
704
705struct RegisteredInlineCompletionProvider {
706 provider: Arc<dyn InlineCompletionProviderHandle>,
707 _subscription: Subscription,
708}
709
710enum ContextMenu {
711 Completions(CompletionsMenu),
712 CodeActions(CodeActionsMenu),
713}
714
715impl ContextMenu {
716 fn select_first(
717 &mut self,
718 project: Option<&Model<Project>>,
719 cx: &mut ViewContext<Editor>,
720 ) -> bool {
721 if self.visible() {
722 match self {
723 ContextMenu::Completions(menu) => menu.select_first(project, cx),
724 ContextMenu::CodeActions(menu) => menu.select_first(cx),
725 }
726 true
727 } else {
728 false
729 }
730 }
731
732 fn select_prev(
733 &mut self,
734 project: Option<&Model<Project>>,
735 cx: &mut ViewContext<Editor>,
736 ) -> bool {
737 if self.visible() {
738 match self {
739 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
740 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
741 }
742 true
743 } else {
744 false
745 }
746 }
747
748 fn select_next(
749 &mut self,
750 project: Option<&Model<Project>>,
751 cx: &mut ViewContext<Editor>,
752 ) -> bool {
753 if self.visible() {
754 match self {
755 ContextMenu::Completions(menu) => menu.select_next(project, cx),
756 ContextMenu::CodeActions(menu) => menu.select_next(cx),
757 }
758 true
759 } else {
760 false
761 }
762 }
763
764 fn select_last(
765 &mut self,
766 project: Option<&Model<Project>>,
767 cx: &mut ViewContext<Editor>,
768 ) -> bool {
769 if self.visible() {
770 match self {
771 ContextMenu::Completions(menu) => menu.select_last(project, cx),
772 ContextMenu::CodeActions(menu) => menu.select_last(cx),
773 }
774 true
775 } else {
776 false
777 }
778 }
779
780 fn visible(&self) -> bool {
781 match self {
782 ContextMenu::Completions(menu) => menu.visible(),
783 ContextMenu::CodeActions(menu) => menu.visible(),
784 }
785 }
786
787 fn render(
788 &self,
789 cursor_position: DisplayPoint,
790 style: &EditorStyle,
791 max_height: Pixels,
792 workspace: Option<WeakView<Workspace>>,
793 cx: &mut ViewContext<Editor>,
794 ) -> (ContextMenuOrigin, AnyElement) {
795 match self {
796 ContextMenu::Completions(menu) => (
797 ContextMenuOrigin::EditorPoint(cursor_position),
798 menu.render(style, max_height, workspace, cx),
799 ),
800 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
801 }
802 }
803}
804
805enum ContextMenuOrigin {
806 EditorPoint(DisplayPoint),
807 GutterIndicator(DisplayRow),
808}
809
810#[derive(Clone)]
811struct CompletionsMenu {
812 id: CompletionId,
813 initial_position: Anchor,
814 buffer: Model<Buffer>,
815 completions: Arc<RwLock<Box<[Completion]>>>,
816 match_candidates: Arc<[StringMatchCandidate]>,
817 matches: Arc<[StringMatch]>,
818 selected_item: usize,
819 scroll_handle: UniformListScrollHandle,
820 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
821}
822
823impl CompletionsMenu {
824 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
825 self.selected_item = 0;
826 self.scroll_handle.scroll_to_item(self.selected_item);
827 self.attempt_resolve_selected_completion_documentation(project, cx);
828 cx.notify();
829 }
830
831 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
832 if self.selected_item > 0 {
833 self.selected_item -= 1;
834 } else {
835 self.selected_item = self.matches.len() - 1;
836 }
837 self.scroll_handle.scroll_to_item(self.selected_item);
838 self.attempt_resolve_selected_completion_documentation(project, cx);
839 cx.notify();
840 }
841
842 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
843 if self.selected_item + 1 < self.matches.len() {
844 self.selected_item += 1;
845 } else {
846 self.selected_item = 0;
847 }
848 self.scroll_handle.scroll_to_item(self.selected_item);
849 self.attempt_resolve_selected_completion_documentation(project, cx);
850 cx.notify();
851 }
852
853 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
854 self.selected_item = self.matches.len() - 1;
855 self.scroll_handle.scroll_to_item(self.selected_item);
856 self.attempt_resolve_selected_completion_documentation(project, cx);
857 cx.notify();
858 }
859
860 fn pre_resolve_completion_documentation(
861 buffer: Model<Buffer>,
862 completions: Arc<RwLock<Box<[Completion]>>>,
863 matches: Arc<[StringMatch]>,
864 editor: &Editor,
865 cx: &mut ViewContext<Editor>,
866 ) -> Task<()> {
867 let settings = EditorSettings::get_global(cx);
868 if !settings.show_completion_documentation {
869 return Task::ready(());
870 }
871
872 let Some(provider) = editor.completion_provider.as_ref() else {
873 return Task::ready(());
874 };
875
876 let resolve_task = provider.resolve_completions(
877 buffer,
878 matches.iter().map(|m| m.candidate_id).collect(),
879 completions.clone(),
880 cx,
881 );
882
883 return cx.spawn(move |this, mut cx| async move {
884 if let Some(true) = resolve_task.await.log_err() {
885 this.update(&mut cx, |_, cx| cx.notify()).ok();
886 }
887 });
888 }
889
890 fn attempt_resolve_selected_completion_documentation(
891 &mut self,
892 project: Option<&Model<Project>>,
893 cx: &mut ViewContext<Editor>,
894 ) {
895 let settings = EditorSettings::get_global(cx);
896 if !settings.show_completion_documentation {
897 return;
898 }
899
900 let completion_index = self.matches[self.selected_item].candidate_id;
901 let Some(project) = project else {
902 return;
903 };
904
905 let resolve_task = project.update(cx, |project, cx| {
906 project.resolve_completions(
907 self.buffer.clone(),
908 vec![completion_index],
909 self.completions.clone(),
910 cx,
911 )
912 });
913
914 let delay_ms =
915 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
916 let delay = Duration::from_millis(delay_ms);
917
918 self.selected_completion_documentation_resolve_debounce
919 .lock()
920 .fire_new(delay, cx, |_, cx| {
921 cx.spawn(move |this, mut cx| async move {
922 if let Some(true) = resolve_task.await.log_err() {
923 this.update(&mut cx, |_, cx| cx.notify()).ok();
924 }
925 })
926 });
927 }
928
929 fn visible(&self) -> bool {
930 !self.matches.is_empty()
931 }
932
933 fn render(
934 &self,
935 style: &EditorStyle,
936 max_height: Pixels,
937 workspace: Option<WeakView<Workspace>>,
938 cx: &mut ViewContext<Editor>,
939 ) -> AnyElement {
940 let settings = EditorSettings::get_global(cx);
941 let show_completion_documentation = settings.show_completion_documentation;
942
943 let widest_completion_ix = self
944 .matches
945 .iter()
946 .enumerate()
947 .max_by_key(|(_, mat)| {
948 let completions = self.completions.read();
949 let completion = &completions[mat.candidate_id];
950 let documentation = &completion.documentation;
951
952 let mut len = completion.label.text.chars().count();
953 if let Some(Documentation::SingleLine(text)) = documentation {
954 if show_completion_documentation {
955 len += text.chars().count();
956 }
957 }
958
959 len
960 })
961 .map(|(ix, _)| ix);
962
963 let completions = self.completions.clone();
964 let matches = self.matches.clone();
965 let selected_item = self.selected_item;
966 let style = style.clone();
967
968 let multiline_docs = if show_completion_documentation {
969 let mat = &self.matches[selected_item];
970 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
971 Some(Documentation::MultiLinePlainText(text)) => {
972 Some(div().child(SharedString::from(text.clone())))
973 }
974 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
975 Some(div().child(render_parsed_markdown(
976 "completions_markdown",
977 parsed,
978 &style,
979 workspace,
980 cx,
981 )))
982 }
983 _ => None,
984 };
985 multiline_docs.map(|div| {
986 div.id("multiline_docs")
987 .max_h(max_height)
988 .flex_1()
989 .px_1p5()
990 .py_1()
991 .min_w(px(260.))
992 .max_w(px(640.))
993 .w(px(500.))
994 .overflow_y_scroll()
995 .occlude()
996 })
997 } else {
998 None
999 };
1000
1001 let list = uniform_list(
1002 cx.view().clone(),
1003 "completions",
1004 matches.len(),
1005 move |_editor, range, cx| {
1006 let start_ix = range.start;
1007 let completions_guard = completions.read();
1008
1009 matches[range]
1010 .iter()
1011 .enumerate()
1012 .map(|(ix, mat)| {
1013 let item_ix = start_ix + ix;
1014 let candidate_id = mat.candidate_id;
1015 let completion = &completions_guard[candidate_id];
1016
1017 let documentation = if show_completion_documentation {
1018 &completion.documentation
1019 } else {
1020 &None
1021 };
1022
1023 let highlights = gpui::combine_highlights(
1024 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1025 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1026 |(range, mut highlight)| {
1027 // Ignore font weight for syntax highlighting, as we'll use it
1028 // for fuzzy matches.
1029 highlight.font_weight = None;
1030
1031 if completion.lsp_completion.deprecated.unwrap_or(false) {
1032 highlight.strikethrough = Some(StrikethroughStyle {
1033 thickness: 1.0.into(),
1034 ..Default::default()
1035 });
1036 highlight.color = Some(cx.theme().colors().text_muted);
1037 }
1038
1039 (range, highlight)
1040 },
1041 ),
1042 );
1043 let completion_label = StyledText::new(completion.label.text.clone())
1044 .with_highlights(&style.text, highlights);
1045 let documentation_label =
1046 if let Some(Documentation::SingleLine(text)) = documentation {
1047 if text.trim().is_empty() {
1048 None
1049 } else {
1050 Some(
1051 h_flex().ml_4().child(
1052 Label::new(text.clone())
1053 .size(LabelSize::Small)
1054 .color(Color::Muted),
1055 ),
1056 )
1057 }
1058 } else {
1059 None
1060 };
1061
1062 div().min_w(px(220.)).max_w(px(540.)).child(
1063 ListItem::new(mat.candidate_id)
1064 .inset(true)
1065 .selected(item_ix == selected_item)
1066 .on_click(cx.listener(move |editor, _event, cx| {
1067 cx.stop_propagation();
1068 if let Some(task) = editor.confirm_completion(
1069 &ConfirmCompletion {
1070 item_ix: Some(item_ix),
1071 },
1072 cx,
1073 ) {
1074 task.detach_and_log_err(cx)
1075 }
1076 }))
1077 .child(h_flex().overflow_hidden().child(completion_label))
1078 .end_slot::<Div>(documentation_label),
1079 )
1080 })
1081 .collect()
1082 },
1083 )
1084 .occlude()
1085 .max_h(max_height)
1086 .track_scroll(self.scroll_handle.clone())
1087 .with_width_from_item(widest_completion_ix);
1088
1089 Popover::new()
1090 .child(list)
1091 .when_some(multiline_docs, |popover, multiline_docs| {
1092 popover.aside(multiline_docs)
1093 })
1094 .into_any_element()
1095 }
1096
1097 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1098 let mut matches = if let Some(query) = query {
1099 fuzzy::match_strings(
1100 &self.match_candidates,
1101 query,
1102 query.chars().any(|c| c.is_uppercase()),
1103 100,
1104 &Default::default(),
1105 executor,
1106 )
1107 .await
1108 } else {
1109 self.match_candidates
1110 .iter()
1111 .enumerate()
1112 .map(|(candidate_id, candidate)| StringMatch {
1113 candidate_id,
1114 score: Default::default(),
1115 positions: Default::default(),
1116 string: candidate.string.clone(),
1117 })
1118 .collect()
1119 };
1120
1121 // Remove all candidates where the query's start does not match the start of any word in the candidate
1122 if let Some(query) = query {
1123 if let Some(query_start) = query.chars().next() {
1124 matches.retain(|string_match| {
1125 split_words(&string_match.string).any(|word| {
1126 // Check that the first codepoint of the word as lowercase matches the first
1127 // codepoint of the query as lowercase
1128 word.chars()
1129 .flat_map(|codepoint| codepoint.to_lowercase())
1130 .zip(query_start.to_lowercase())
1131 .all(|(word_cp, query_cp)| word_cp == query_cp)
1132 })
1133 });
1134 }
1135 }
1136
1137 let completions = self.completions.read();
1138 matches.sort_unstable_by_key(|mat| {
1139 // We do want to strike a balance here between what the language server tells us
1140 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1141 // `Creat` and there is a local variable called `CreateComponent`).
1142 // So what we do is: we bucket all matches into two buckets
1143 // - Strong matches
1144 // - Weak matches
1145 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1146 // and the Weak matches are the rest.
1147 //
1148 // For the strong matches, we sort by the language-servers score first and for the weak
1149 // matches, we prefer our fuzzy finder first.
1150 //
1151 // The thinking behind that: it's useless to take the sort_text the language-server gives
1152 // us into account when it's obviously a bad match.
1153
1154 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1155 enum MatchScore<'a> {
1156 Strong {
1157 sort_text: Option<&'a str>,
1158 score: Reverse<OrderedFloat<f64>>,
1159 sort_key: (usize, &'a str),
1160 },
1161 Weak {
1162 score: Reverse<OrderedFloat<f64>>,
1163 sort_text: Option<&'a str>,
1164 sort_key: (usize, &'a str),
1165 },
1166 }
1167
1168 let completion = &completions[mat.candidate_id];
1169 let sort_key = completion.sort_key();
1170 let sort_text = completion.lsp_completion.sort_text.as_deref();
1171 let score = Reverse(OrderedFloat(mat.score));
1172
1173 if mat.score >= 0.2 {
1174 MatchScore::Strong {
1175 sort_text,
1176 score,
1177 sort_key,
1178 }
1179 } else {
1180 MatchScore::Weak {
1181 score,
1182 sort_text,
1183 sort_key,
1184 }
1185 }
1186 });
1187
1188 for mat in &mut matches {
1189 let completion = &completions[mat.candidate_id];
1190 mat.string.clone_from(&completion.label.text);
1191 for position in &mut mat.positions {
1192 *position += completion.label.filter_range.start;
1193 }
1194 }
1195 drop(completions);
1196
1197 self.matches = matches.into();
1198 self.selected_item = 0;
1199 }
1200}
1201
1202#[derive(Clone)]
1203struct CodeActionContents {
1204 tasks: Option<Arc<ResolvedTasks>>,
1205 actions: Option<Arc<[CodeAction]>>,
1206}
1207
1208impl CodeActionContents {
1209 fn len(&self) -> usize {
1210 match (&self.tasks, &self.actions) {
1211 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1212 (Some(tasks), None) => tasks.templates.len(),
1213 (None, Some(actions)) => actions.len(),
1214 (None, None) => 0,
1215 }
1216 }
1217
1218 fn is_empty(&self) -> bool {
1219 match (&self.tasks, &self.actions) {
1220 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1221 (Some(tasks), None) => tasks.templates.is_empty(),
1222 (None, Some(actions)) => actions.is_empty(),
1223 (None, None) => true,
1224 }
1225 }
1226
1227 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1228 self.tasks
1229 .iter()
1230 .flat_map(|tasks| {
1231 tasks
1232 .templates
1233 .iter()
1234 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1235 })
1236 .chain(self.actions.iter().flat_map(|actions| {
1237 actions
1238 .iter()
1239 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1240 }))
1241 }
1242 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1243 match (&self.tasks, &self.actions) {
1244 (Some(tasks), Some(actions)) => {
1245 if index < tasks.templates.len() {
1246 tasks
1247 .templates
1248 .get(index)
1249 .cloned()
1250 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1251 } else {
1252 actions
1253 .get(index - tasks.templates.len())
1254 .cloned()
1255 .map(CodeActionsItem::CodeAction)
1256 }
1257 }
1258 (Some(tasks), None) => tasks
1259 .templates
1260 .get(index)
1261 .cloned()
1262 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1263 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1264 (None, None) => None,
1265 }
1266 }
1267}
1268
1269#[allow(clippy::large_enum_variant)]
1270#[derive(Clone)]
1271enum CodeActionsItem {
1272 Task(TaskSourceKind, ResolvedTask),
1273 CodeAction(CodeAction),
1274}
1275
1276impl CodeActionsItem {
1277 fn as_task(&self) -> Option<&ResolvedTask> {
1278 let Self::Task(_, task) = self else {
1279 return None;
1280 };
1281 Some(task)
1282 }
1283 fn as_code_action(&self) -> Option<&CodeAction> {
1284 let Self::CodeAction(action) = self else {
1285 return None;
1286 };
1287 Some(action)
1288 }
1289 fn label(&self) -> String {
1290 match self {
1291 Self::CodeAction(action) => action.lsp_action.title.clone(),
1292 Self::Task(_, task) => task.resolved_label.clone(),
1293 }
1294 }
1295}
1296
1297struct CodeActionsMenu {
1298 actions: CodeActionContents,
1299 buffer: Model<Buffer>,
1300 selected_item: usize,
1301 scroll_handle: UniformListScrollHandle,
1302 deployed_from_indicator: Option<DisplayRow>,
1303}
1304
1305impl CodeActionsMenu {
1306 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1307 self.selected_item = 0;
1308 self.scroll_handle.scroll_to_item(self.selected_item);
1309 cx.notify()
1310 }
1311
1312 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1313 if self.selected_item > 0 {
1314 self.selected_item -= 1;
1315 } else {
1316 self.selected_item = self.actions.len() - 1;
1317 }
1318 self.scroll_handle.scroll_to_item(self.selected_item);
1319 cx.notify();
1320 }
1321
1322 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1323 if self.selected_item + 1 < self.actions.len() {
1324 self.selected_item += 1;
1325 } else {
1326 self.selected_item = 0;
1327 }
1328 self.scroll_handle.scroll_to_item(self.selected_item);
1329 cx.notify();
1330 }
1331
1332 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1333 self.selected_item = self.actions.len() - 1;
1334 self.scroll_handle.scroll_to_item(self.selected_item);
1335 cx.notify()
1336 }
1337
1338 fn visible(&self) -> bool {
1339 !self.actions.is_empty()
1340 }
1341
1342 fn render(
1343 &self,
1344 cursor_position: DisplayPoint,
1345 _style: &EditorStyle,
1346 max_height: Pixels,
1347 cx: &mut ViewContext<Editor>,
1348 ) -> (ContextMenuOrigin, AnyElement) {
1349 let actions = self.actions.clone();
1350 let selected_item = self.selected_item;
1351 let element = uniform_list(
1352 cx.view().clone(),
1353 "code_actions_menu",
1354 self.actions.len(),
1355 move |_this, range, cx| {
1356 actions
1357 .iter()
1358 .skip(range.start)
1359 .take(range.end - range.start)
1360 .enumerate()
1361 .map(|(ix, action)| {
1362 let item_ix = range.start + ix;
1363 let selected = selected_item == item_ix;
1364 let colors = cx.theme().colors();
1365 div()
1366 .px_2()
1367 .text_color(colors.text)
1368 .when(selected, |style| {
1369 style
1370 .bg(colors.element_active)
1371 .text_color(colors.text_accent)
1372 })
1373 .hover(|style| {
1374 style
1375 .bg(colors.element_hover)
1376 .text_color(colors.text_accent)
1377 })
1378 .whitespace_nowrap()
1379 .when_some(action.as_code_action(), |this, action| {
1380 this.on_mouse_down(
1381 MouseButton::Left,
1382 cx.listener(move |editor, _, cx| {
1383 cx.stop_propagation();
1384 if let Some(task) = editor.confirm_code_action(
1385 &ConfirmCodeAction {
1386 item_ix: Some(item_ix),
1387 },
1388 cx,
1389 ) {
1390 task.detach_and_log_err(cx)
1391 }
1392 }),
1393 )
1394 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1395 .child(SharedString::from(action.lsp_action.title.clone()))
1396 })
1397 .when_some(action.as_task(), |this, task| {
1398 this.on_mouse_down(
1399 MouseButton::Left,
1400 cx.listener(move |editor, _, cx| {
1401 cx.stop_propagation();
1402 if let Some(task) = editor.confirm_code_action(
1403 &ConfirmCodeAction {
1404 item_ix: Some(item_ix),
1405 },
1406 cx,
1407 ) {
1408 task.detach_and_log_err(cx)
1409 }
1410 }),
1411 )
1412 .child(SharedString::from(task.resolved_label.clone()))
1413 })
1414 })
1415 .collect()
1416 },
1417 )
1418 .elevation_1(cx)
1419 .px_2()
1420 .py_1()
1421 .max_h(max_height)
1422 .occlude()
1423 .track_scroll(self.scroll_handle.clone())
1424 .with_width_from_item(
1425 self.actions
1426 .iter()
1427 .enumerate()
1428 .max_by_key(|(_, action)| match action {
1429 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1430 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1431 })
1432 .map(|(ix, _)| ix),
1433 )
1434 .into_any_element();
1435
1436 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1437 ContextMenuOrigin::GutterIndicator(row)
1438 } else {
1439 ContextMenuOrigin::EditorPoint(cursor_position)
1440 };
1441
1442 (cursor_position, element)
1443 }
1444}
1445
1446#[derive(Debug)]
1447struct ActiveDiagnosticGroup {
1448 primary_range: Range<Anchor>,
1449 primary_message: String,
1450 group_id: usize,
1451 blocks: HashMap<BlockId, Diagnostic>,
1452 is_valid: bool,
1453}
1454
1455#[derive(Serialize, Deserialize)]
1456pub struct ClipboardSelection {
1457 pub len: usize,
1458 pub is_entire_line: bool,
1459 pub first_line_indent: u32,
1460}
1461
1462#[derive(Debug)]
1463pub(crate) struct NavigationData {
1464 cursor_anchor: Anchor,
1465 cursor_position: Point,
1466 scroll_anchor: ScrollAnchor,
1467 scroll_top_row: u32,
1468}
1469
1470enum GotoDefinitionKind {
1471 Symbol,
1472 Type,
1473 Implementation,
1474}
1475
1476#[derive(Debug, Clone)]
1477enum InlayHintRefreshReason {
1478 Toggle(bool),
1479 SettingsChange(InlayHintSettings),
1480 NewLinesShown,
1481 BufferEdited(HashSet<Arc<Language>>),
1482 RefreshRequested,
1483 ExcerptsRemoved(Vec<ExcerptId>),
1484}
1485
1486impl InlayHintRefreshReason {
1487 fn description(&self) -> &'static str {
1488 match self {
1489 Self::Toggle(_) => "toggle",
1490 Self::SettingsChange(_) => "settings change",
1491 Self::NewLinesShown => "new lines shown",
1492 Self::BufferEdited(_) => "buffer edited",
1493 Self::RefreshRequested => "refresh requested",
1494 Self::ExcerptsRemoved(_) => "excerpts removed",
1495 }
1496 }
1497}
1498
1499impl Editor {
1500 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1501 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1502 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1503 Self::new(EditorMode::SingleLine, buffer, None, cx)
1504 }
1505
1506 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1507 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1508 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1509 Self::new(EditorMode::Full, buffer, None, cx)
1510 }
1511
1512 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1513 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1514 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1515 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1516 }
1517
1518 pub fn for_buffer(
1519 buffer: Model<Buffer>,
1520 project: Option<Model<Project>>,
1521 cx: &mut ViewContext<Self>,
1522 ) -> Self {
1523 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1524 Self::new(EditorMode::Full, buffer, project, cx)
1525 }
1526
1527 pub fn for_multibuffer(
1528 buffer: Model<MultiBuffer>,
1529 project: Option<Model<Project>>,
1530 cx: &mut ViewContext<Self>,
1531 ) -> Self {
1532 Self::new(EditorMode::Full, buffer, project, cx)
1533 }
1534
1535 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1536 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1537 self.display_map.update(cx, |display_map, cx| {
1538 let snapshot = display_map.snapshot(cx);
1539 clone.display_map.update(cx, |display_map, cx| {
1540 display_map.set_state(&snapshot, cx);
1541 });
1542 });
1543 clone.selections.clone_state(&self.selections);
1544 clone.scroll_manager.clone_state(&self.scroll_manager);
1545 clone.searchable = self.searchable;
1546 clone
1547 }
1548
1549 fn new(
1550 mode: EditorMode,
1551 buffer: Model<MultiBuffer>,
1552 project: Option<Model<Project>>,
1553 cx: &mut ViewContext<Self>,
1554 ) -> Self {
1555 let style = cx.text_style();
1556 let font_size = style.font_size.to_pixels(cx.rem_size());
1557 let display_map = cx.new_model(|cx| {
1558 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1559 });
1560
1561 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1562
1563 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1564
1565 let soft_wrap_mode_override =
1566 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1567
1568 let mut project_subscriptions = Vec::new();
1569 if mode == EditorMode::Full {
1570 if let Some(project) = project.as_ref() {
1571 if buffer.read(cx).is_singleton() {
1572 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1573 cx.emit(EditorEvent::TitleChanged);
1574 }));
1575 }
1576 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1577 if let project::Event::RefreshInlayHints = event {
1578 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1579 };
1580 }));
1581 }
1582 }
1583
1584 let inlay_hint_settings = inlay_hint_settings(
1585 selections.newest_anchor().head(),
1586 &buffer.read(cx).snapshot(cx),
1587 cx,
1588 );
1589
1590 let focus_handle = cx.focus_handle();
1591 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1592 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1593
1594 let mut this = Self {
1595 focus_handle,
1596 buffer: buffer.clone(),
1597 display_map: display_map.clone(),
1598 selections,
1599 scroll_manager: ScrollManager::new(cx),
1600 columnar_selection_tail: None,
1601 add_selections_state: None,
1602 select_next_state: None,
1603 select_prev_state: None,
1604 selection_history: Default::default(),
1605 autoclose_regions: Default::default(),
1606 snippet_stack: Default::default(),
1607 select_larger_syntax_node_stack: Vec::new(),
1608 ime_transaction: Default::default(),
1609 active_diagnostics: None,
1610 soft_wrap_mode_override,
1611 completion_provider: project.clone().map(|project| Box::new(project) as _),
1612 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1613 project,
1614 blink_manager: blink_manager.clone(),
1615 show_local_selections: true,
1616 mode,
1617 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1618 show_gutter: mode == EditorMode::Full,
1619 show_wrap_guides: None,
1620 placeholder_text: None,
1621 highlight_order: 0,
1622 highlighted_rows: HashMap::default(),
1623 background_highlights: Default::default(),
1624 scrollbar_marker_state: ScrollbarMarkerState::default(),
1625 nav_history: None,
1626 context_menu: RwLock::new(None),
1627 mouse_context_menu: None,
1628 completion_tasks: Default::default(),
1629 find_all_references_task_sources: Vec::new(),
1630 next_completion_id: 0,
1631 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1632 next_inlay_id: 0,
1633 available_code_actions: Default::default(),
1634 code_actions_task: Default::default(),
1635 document_highlights_task: Default::default(),
1636 pending_rename: Default::default(),
1637 searchable: true,
1638 cursor_shape: Default::default(),
1639 autoindent_mode: Some(AutoindentMode::EachLine),
1640 collapse_matches: false,
1641 workspace: None,
1642 keymap_context_layers: Default::default(),
1643 input_enabled: true,
1644 use_modal_editing: mode == EditorMode::Full,
1645 read_only: false,
1646 use_autoclose: true,
1647 auto_replace_emoji_shortcode: false,
1648 leader_peer_id: None,
1649 remote_id: None,
1650 hover_state: Default::default(),
1651 hovered_link_state: Default::default(),
1652 inline_completion_provider: None,
1653 active_inline_completion: None,
1654 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1655 expanded_hunks: ExpandedHunks::default(),
1656 gutter_hovered: false,
1657 pixel_position_of_newest_cursor: None,
1658 last_bounds: None,
1659 expect_bounds_change: None,
1660 gutter_dimensions: GutterDimensions::default(),
1661 style: None,
1662 show_cursor_names: false,
1663 hovered_cursors: Default::default(),
1664 editor_actions: Default::default(),
1665 vim_replace_map: Default::default(),
1666 show_inline_completions: mode == EditorMode::Full,
1667 custom_context_menu: None,
1668 show_git_blame_gutter: false,
1669 show_git_blame_inline: false,
1670 show_git_blame_inline_delay_task: None,
1671 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1672 blame: None,
1673 blame_subscription: None,
1674 tasks: Default::default(),
1675 _subscriptions: vec![
1676 cx.observe(&buffer, Self::on_buffer_changed),
1677 cx.subscribe(&buffer, Self::on_buffer_event),
1678 cx.observe(&display_map, Self::on_display_map_changed),
1679 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1680 cx.observe_global::<SettingsStore>(Self::settings_changed),
1681 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1682 cx.observe_window_activation(|editor, cx| {
1683 let active = cx.is_window_active();
1684 editor.blink_manager.update(cx, |blink_manager, cx| {
1685 if active {
1686 blink_manager.enable(cx);
1687 } else {
1688 blink_manager.show_cursor(cx);
1689 blink_manager.disable(cx);
1690 }
1691 });
1692 }),
1693 ],
1694 tasks_update_task: None,
1695 };
1696 this.tasks_update_task = Some(this.refresh_runnables(cx));
1697 this._subscriptions.extend(project_subscriptions);
1698
1699 this.end_selection(cx);
1700 this.scroll_manager.show_scrollbar(cx);
1701
1702 if mode == EditorMode::Full {
1703 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1704 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1705
1706 if this.git_blame_inline_enabled {
1707 this.git_blame_inline_enabled = true;
1708 this.start_git_blame_inline(false, cx);
1709 }
1710 }
1711
1712 this.report_editor_event("open", None, cx);
1713 this
1714 }
1715
1716 fn key_context(&self, cx: &AppContext) -> KeyContext {
1717 let mut key_context = KeyContext::new_with_defaults();
1718 key_context.add("Editor");
1719 let mode = match self.mode {
1720 EditorMode::SingleLine => "single_line",
1721 EditorMode::AutoHeight { .. } => "auto_height",
1722 EditorMode::Full => "full",
1723 };
1724 key_context.set("mode", mode);
1725 if self.pending_rename.is_some() {
1726 key_context.add("renaming");
1727 }
1728 if self.context_menu_visible() {
1729 match self.context_menu.read().as_ref() {
1730 Some(ContextMenu::Completions(_)) => {
1731 key_context.add("menu");
1732 key_context.add("showing_completions")
1733 }
1734 Some(ContextMenu::CodeActions(_)) => {
1735 key_context.add("menu");
1736 key_context.add("showing_code_actions")
1737 }
1738 None => {}
1739 }
1740 }
1741
1742 for layer in self.keymap_context_layers.values() {
1743 key_context.extend(layer);
1744 }
1745
1746 if let Some(extension) = self
1747 .buffer
1748 .read(cx)
1749 .as_singleton()
1750 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1751 {
1752 key_context.set("extension", extension.to_string());
1753 }
1754
1755 if self.has_active_inline_completion(cx) {
1756 key_context.add("copilot_suggestion");
1757 key_context.add("inline_completion");
1758 }
1759
1760 key_context
1761 }
1762
1763 pub fn new_file(
1764 workspace: &mut Workspace,
1765 _: &workspace::NewFile,
1766 cx: &mut ViewContext<Workspace>,
1767 ) {
1768 let project = workspace.project().clone();
1769 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1770
1771 cx.spawn(|workspace, mut cx| async move {
1772 let buffer = create.await?;
1773 workspace.update(&mut cx, |workspace, cx| {
1774 workspace.add_item_to_active_pane(
1775 Box::new(
1776 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1777 ),
1778 None,
1779 cx,
1780 )
1781 })
1782 })
1783 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1784 ErrorCode::RemoteUpgradeRequired => Some(format!(
1785 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1786 e.error_tag("required").unwrap_or("the latest version")
1787 )),
1788 _ => None,
1789 });
1790 }
1791
1792 pub fn new_file_in_direction(
1793 workspace: &mut Workspace,
1794 action: &workspace::NewFileInDirection,
1795 cx: &mut ViewContext<Workspace>,
1796 ) {
1797 let project = workspace.project().clone();
1798 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1799 let direction = action.0;
1800
1801 cx.spawn(|workspace, mut cx| async move {
1802 let buffer = create.await?;
1803 workspace.update(&mut cx, move |workspace, cx| {
1804 workspace.split_item(
1805 direction,
1806 Box::new(
1807 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1808 ),
1809 cx,
1810 )
1811 })?;
1812 anyhow::Ok(())
1813 })
1814 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1815 ErrorCode::RemoteUpgradeRequired => Some(format!(
1816 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1817 e.error_tag("required").unwrap_or("the latest version")
1818 )),
1819 _ => None,
1820 });
1821 }
1822
1823 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1824 self.buffer.read(cx).replica_id()
1825 }
1826
1827 pub fn leader_peer_id(&self) -> Option<PeerId> {
1828 self.leader_peer_id
1829 }
1830
1831 pub fn buffer(&self) -> &Model<MultiBuffer> {
1832 &self.buffer
1833 }
1834
1835 pub fn workspace(&self) -> Option<View<Workspace>> {
1836 self.workspace.as_ref()?.0.upgrade()
1837 }
1838
1839 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1840 self.buffer().read(cx).title(cx)
1841 }
1842
1843 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1844 EditorSnapshot {
1845 mode: self.mode,
1846 show_gutter: self.show_gutter,
1847 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1848 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1849 scroll_anchor: self.scroll_manager.anchor(),
1850 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1851 placeholder_text: self.placeholder_text.clone(),
1852 is_focused: self.focus_handle.is_focused(cx),
1853 }
1854 }
1855
1856 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1857 self.buffer.read(cx).language_at(point, cx)
1858 }
1859
1860 pub fn file_at<T: ToOffset>(
1861 &self,
1862 point: T,
1863 cx: &AppContext,
1864 ) -> Option<Arc<dyn language::File>> {
1865 self.buffer.read(cx).read(cx).file_at(point).cloned()
1866 }
1867
1868 pub fn active_excerpt(
1869 &self,
1870 cx: &AppContext,
1871 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1872 self.buffer
1873 .read(cx)
1874 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1875 }
1876
1877 pub fn mode(&self) -> EditorMode {
1878 self.mode
1879 }
1880
1881 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1882 self.collaboration_hub.as_deref()
1883 }
1884
1885 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1886 self.collaboration_hub = Some(hub);
1887 }
1888
1889 pub fn set_custom_context_menu(
1890 &mut self,
1891 f: impl 'static
1892 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1893 ) {
1894 self.custom_context_menu = Some(Box::new(f))
1895 }
1896
1897 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1898 self.completion_provider = Some(hub);
1899 }
1900
1901 pub fn set_inline_completion_provider<T>(
1902 &mut self,
1903 provider: Option<Model<T>>,
1904 cx: &mut ViewContext<Self>,
1905 ) where
1906 T: InlineCompletionProvider,
1907 {
1908 self.inline_completion_provider =
1909 provider.map(|provider| RegisteredInlineCompletionProvider {
1910 _subscription: cx.observe(&provider, |this, _, cx| {
1911 if this.focus_handle.is_focused(cx) {
1912 this.update_visible_inline_completion(cx);
1913 }
1914 }),
1915 provider: Arc::new(provider),
1916 });
1917 self.refresh_inline_completion(false, cx);
1918 }
1919
1920 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1921 self.placeholder_text.as_deref()
1922 }
1923
1924 pub fn set_placeholder_text(
1925 &mut self,
1926 placeholder_text: impl Into<Arc<str>>,
1927 cx: &mut ViewContext<Self>,
1928 ) {
1929 let placeholder_text = Some(placeholder_text.into());
1930 if self.placeholder_text != placeholder_text {
1931 self.placeholder_text = placeholder_text;
1932 cx.notify();
1933 }
1934 }
1935
1936 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1937 self.cursor_shape = cursor_shape;
1938 cx.notify();
1939 }
1940
1941 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1942 self.collapse_matches = collapse_matches;
1943 }
1944
1945 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1946 if self.collapse_matches {
1947 return range.start..range.start;
1948 }
1949 range.clone()
1950 }
1951
1952 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1953 if self.display_map.read(cx).clip_at_line_ends != clip {
1954 self.display_map
1955 .update(cx, |map, _| map.clip_at_line_ends = clip);
1956 }
1957 }
1958
1959 pub fn set_keymap_context_layer<Tag: 'static>(
1960 &mut self,
1961 context: KeyContext,
1962 cx: &mut ViewContext<Self>,
1963 ) {
1964 self.keymap_context_layers
1965 .insert(TypeId::of::<Tag>(), context);
1966 cx.notify();
1967 }
1968
1969 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1970 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1971 cx.notify();
1972 }
1973
1974 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1975 self.input_enabled = input_enabled;
1976 }
1977
1978 pub fn set_autoindent(&mut self, autoindent: bool) {
1979 if autoindent {
1980 self.autoindent_mode = Some(AutoindentMode::EachLine);
1981 } else {
1982 self.autoindent_mode = None;
1983 }
1984 }
1985
1986 pub fn read_only(&self, cx: &AppContext) -> bool {
1987 self.read_only || self.buffer.read(cx).read_only()
1988 }
1989
1990 pub fn set_read_only(&mut self, read_only: bool) {
1991 self.read_only = read_only;
1992 }
1993
1994 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1995 self.use_autoclose = autoclose;
1996 }
1997
1998 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1999 self.auto_replace_emoji_shortcode = auto_replace;
2000 }
2001
2002 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2003 self.show_inline_completions = show_inline_completions;
2004 }
2005
2006 pub fn set_use_modal_editing(&mut self, to: bool) {
2007 self.use_modal_editing = to;
2008 }
2009
2010 pub fn use_modal_editing(&self) -> bool {
2011 self.use_modal_editing
2012 }
2013
2014 fn selections_did_change(
2015 &mut self,
2016 local: bool,
2017 old_cursor_position: &Anchor,
2018 cx: &mut ViewContext<Self>,
2019 ) {
2020 // Copy selections to primary selection buffer
2021 #[cfg(target_os = "linux")]
2022 if local {
2023 let selections = self.selections.all::<usize>(cx);
2024 let buffer_handle = self.buffer.read(cx).read(cx);
2025
2026 let mut text = String::new();
2027 for (index, selection) in selections.iter().enumerate() {
2028 let text_for_selection = buffer_handle
2029 .text_for_range(selection.start..selection.end)
2030 .collect::<String>();
2031
2032 text.push_str(&text_for_selection);
2033 if index != selections.len() - 1 {
2034 text.push('\n');
2035 }
2036 }
2037
2038 if !text.is_empty() {
2039 cx.write_to_primary(ClipboardItem::new(text));
2040 }
2041 }
2042
2043 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2044 self.buffer.update(cx, |buffer, cx| {
2045 buffer.set_active_selections(
2046 &self.selections.disjoint_anchors(),
2047 self.selections.line_mode,
2048 self.cursor_shape,
2049 cx,
2050 )
2051 });
2052 }
2053
2054 let display_map = self
2055 .display_map
2056 .update(cx, |display_map, cx| display_map.snapshot(cx));
2057 let buffer = &display_map.buffer_snapshot;
2058 self.add_selections_state = None;
2059 self.select_next_state = None;
2060 self.select_prev_state = None;
2061 self.select_larger_syntax_node_stack.clear();
2062 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2063 self.snippet_stack
2064 .invalidate(&self.selections.disjoint_anchors(), buffer);
2065 self.take_rename(false, cx);
2066
2067 let new_cursor_position = self.selections.newest_anchor().head();
2068
2069 self.push_to_nav_history(
2070 *old_cursor_position,
2071 Some(new_cursor_position.to_point(buffer)),
2072 cx,
2073 );
2074
2075 if local {
2076 let new_cursor_position = self.selections.newest_anchor().head();
2077 let mut context_menu = self.context_menu.write();
2078 let completion_menu = match context_menu.as_ref() {
2079 Some(ContextMenu::Completions(menu)) => Some(menu),
2080
2081 _ => {
2082 *context_menu = None;
2083 None
2084 }
2085 };
2086
2087 if let Some(completion_menu) = completion_menu {
2088 let cursor_position = new_cursor_position.to_offset(buffer);
2089 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2090 if kind == Some(CharKind::Word)
2091 && word_range.to_inclusive().contains(&cursor_position)
2092 {
2093 let mut completion_menu = completion_menu.clone();
2094 drop(context_menu);
2095
2096 let query = Self::completion_query(buffer, cursor_position);
2097 cx.spawn(move |this, mut cx| async move {
2098 completion_menu
2099 .filter(query.as_deref(), cx.background_executor().clone())
2100 .await;
2101
2102 this.update(&mut cx, |this, cx| {
2103 let mut context_menu = this.context_menu.write();
2104 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2105 return;
2106 };
2107
2108 if menu.id > completion_menu.id {
2109 return;
2110 }
2111
2112 *context_menu = Some(ContextMenu::Completions(completion_menu));
2113 drop(context_menu);
2114 cx.notify();
2115 })
2116 })
2117 .detach();
2118
2119 self.show_completions(&ShowCompletions, cx);
2120 } else {
2121 drop(context_menu);
2122 self.hide_context_menu(cx);
2123 }
2124 } else {
2125 drop(context_menu);
2126 }
2127
2128 hide_hover(self, cx);
2129
2130 if old_cursor_position.to_display_point(&display_map).row()
2131 != new_cursor_position.to_display_point(&display_map).row()
2132 {
2133 self.available_code_actions.take();
2134 }
2135 self.refresh_code_actions(cx);
2136 self.refresh_document_highlights(cx);
2137 refresh_matching_bracket_highlights(self, cx);
2138 self.discard_inline_completion(cx);
2139 if self.git_blame_inline_enabled {
2140 self.start_inline_blame_timer(cx);
2141 }
2142 }
2143
2144 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2145 cx.emit(EditorEvent::SelectionsChanged { local });
2146
2147 if self.selections.disjoint_anchors().len() == 1 {
2148 cx.emit(SearchEvent::ActiveMatchChanged)
2149 }
2150
2151 cx.notify();
2152 }
2153
2154 pub fn change_selections<R>(
2155 &mut self,
2156 autoscroll: Option<Autoscroll>,
2157 cx: &mut ViewContext<Self>,
2158 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2159 ) -> R {
2160 let old_cursor_position = self.selections.newest_anchor().head();
2161 self.push_to_selection_history();
2162
2163 let (changed, result) = self.selections.change_with(cx, change);
2164
2165 if changed {
2166 if let Some(autoscroll) = autoscroll {
2167 self.request_autoscroll(autoscroll, cx);
2168 }
2169 self.selections_did_change(true, &old_cursor_position, cx);
2170 }
2171
2172 result
2173 }
2174
2175 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2176 where
2177 I: IntoIterator<Item = (Range<S>, T)>,
2178 S: ToOffset,
2179 T: Into<Arc<str>>,
2180 {
2181 if self.read_only(cx) {
2182 return;
2183 }
2184
2185 self.buffer
2186 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2187 }
2188
2189 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2190 where
2191 I: IntoIterator<Item = (Range<S>, T)>,
2192 S: ToOffset,
2193 T: Into<Arc<str>>,
2194 {
2195 if self.read_only(cx) {
2196 return;
2197 }
2198
2199 self.buffer.update(cx, |buffer, cx| {
2200 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2201 });
2202 }
2203
2204 pub fn edit_with_block_indent<I, S, T>(
2205 &mut self,
2206 edits: I,
2207 original_indent_columns: Vec<u32>,
2208 cx: &mut ViewContext<Self>,
2209 ) where
2210 I: IntoIterator<Item = (Range<S>, T)>,
2211 S: ToOffset,
2212 T: Into<Arc<str>>,
2213 {
2214 if self.read_only(cx) {
2215 return;
2216 }
2217
2218 self.buffer.update(cx, |buffer, cx| {
2219 buffer.edit(
2220 edits,
2221 Some(AutoindentMode::Block {
2222 original_indent_columns,
2223 }),
2224 cx,
2225 )
2226 });
2227 }
2228
2229 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2230 self.hide_context_menu(cx);
2231
2232 match phase {
2233 SelectPhase::Begin {
2234 position,
2235 add,
2236 click_count,
2237 } => self.begin_selection(position, add, click_count, cx),
2238 SelectPhase::BeginColumnar {
2239 position,
2240 goal_column,
2241 } => self.begin_columnar_selection(position, goal_column, cx),
2242 SelectPhase::Extend {
2243 position,
2244 click_count,
2245 } => self.extend_selection(position, click_count, cx),
2246 SelectPhase::Update {
2247 position,
2248 goal_column,
2249 scroll_delta,
2250 } => self.update_selection(position, goal_column, scroll_delta, cx),
2251 SelectPhase::End => self.end_selection(cx),
2252 }
2253 }
2254
2255 fn extend_selection(
2256 &mut self,
2257 position: DisplayPoint,
2258 click_count: usize,
2259 cx: &mut ViewContext<Self>,
2260 ) {
2261 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2262 let tail = self.selections.newest::<usize>(cx).tail();
2263 self.begin_selection(position, false, click_count, cx);
2264
2265 let position = position.to_offset(&display_map, Bias::Left);
2266 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2267
2268 let mut pending_selection = self
2269 .selections
2270 .pending_anchor()
2271 .expect("extend_selection not called with pending selection");
2272 if position >= tail {
2273 pending_selection.start = tail_anchor;
2274 } else {
2275 pending_selection.end = tail_anchor;
2276 pending_selection.reversed = true;
2277 }
2278
2279 let mut pending_mode = self.selections.pending_mode().unwrap();
2280 match &mut pending_mode {
2281 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2282 _ => {}
2283 }
2284
2285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2286 s.set_pending(pending_selection, pending_mode)
2287 });
2288 }
2289
2290 fn begin_selection(
2291 &mut self,
2292 position: DisplayPoint,
2293 add: bool,
2294 click_count: usize,
2295 cx: &mut ViewContext<Self>,
2296 ) {
2297 if !self.focus_handle.is_focused(cx) {
2298 cx.focus(&self.focus_handle);
2299 }
2300
2301 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2302 let buffer = &display_map.buffer_snapshot;
2303 let newest_selection = self.selections.newest_anchor().clone();
2304 let position = display_map.clip_point(position, Bias::Left);
2305
2306 let start;
2307 let end;
2308 let mode;
2309 let auto_scroll;
2310 match click_count {
2311 1 => {
2312 start = buffer.anchor_before(position.to_point(&display_map));
2313 end = start;
2314 mode = SelectMode::Character;
2315 auto_scroll = true;
2316 }
2317 2 => {
2318 let range = movement::surrounding_word(&display_map, position);
2319 start = buffer.anchor_before(range.start.to_point(&display_map));
2320 end = buffer.anchor_before(range.end.to_point(&display_map));
2321 mode = SelectMode::Word(start..end);
2322 auto_scroll = true;
2323 }
2324 3 => {
2325 let position = display_map
2326 .clip_point(position, Bias::Left)
2327 .to_point(&display_map);
2328 let line_start = display_map.prev_line_boundary(position).0;
2329 let next_line_start = buffer.clip_point(
2330 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2331 Bias::Left,
2332 );
2333 start = buffer.anchor_before(line_start);
2334 end = buffer.anchor_before(next_line_start);
2335 mode = SelectMode::Line(start..end);
2336 auto_scroll = true;
2337 }
2338 _ => {
2339 start = buffer.anchor_before(0);
2340 end = buffer.anchor_before(buffer.len());
2341 mode = SelectMode::All;
2342 auto_scroll = false;
2343 }
2344 }
2345
2346 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2347 if !add {
2348 s.clear_disjoint();
2349 } else if click_count > 1 {
2350 s.delete(newest_selection.id)
2351 }
2352
2353 s.set_pending_anchor_range(start..end, mode);
2354 });
2355 }
2356
2357 fn begin_columnar_selection(
2358 &mut self,
2359 position: DisplayPoint,
2360 goal_column: u32,
2361 cx: &mut ViewContext<Self>,
2362 ) {
2363 if !self.focus_handle.is_focused(cx) {
2364 cx.focus(&self.focus_handle);
2365 }
2366
2367 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2368 let tail = self.selections.newest::<Point>(cx).tail();
2369 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2370
2371 self.select_columns(
2372 tail.to_display_point(&display_map),
2373 position,
2374 goal_column,
2375 &display_map,
2376 cx,
2377 );
2378 }
2379
2380 fn update_selection(
2381 &mut self,
2382 position: DisplayPoint,
2383 goal_column: u32,
2384 scroll_delta: gpui::Point<f32>,
2385 cx: &mut ViewContext<Self>,
2386 ) {
2387 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2388
2389 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2390 let tail = tail.to_display_point(&display_map);
2391 self.select_columns(tail, position, goal_column, &display_map, cx);
2392 } else if let Some(mut pending) = self.selections.pending_anchor() {
2393 let buffer = self.buffer.read(cx).snapshot(cx);
2394 let head;
2395 let tail;
2396 let mode = self.selections.pending_mode().unwrap();
2397 match &mode {
2398 SelectMode::Character => {
2399 head = position.to_point(&display_map);
2400 tail = pending.tail().to_point(&buffer);
2401 }
2402 SelectMode::Word(original_range) => {
2403 let original_display_range = original_range.start.to_display_point(&display_map)
2404 ..original_range.end.to_display_point(&display_map);
2405 let original_buffer_range = original_display_range.start.to_point(&display_map)
2406 ..original_display_range.end.to_point(&display_map);
2407 if movement::is_inside_word(&display_map, position)
2408 || original_display_range.contains(&position)
2409 {
2410 let word_range = movement::surrounding_word(&display_map, position);
2411 if word_range.start < original_display_range.start {
2412 head = word_range.start.to_point(&display_map);
2413 } else {
2414 head = word_range.end.to_point(&display_map);
2415 }
2416 } else {
2417 head = position.to_point(&display_map);
2418 }
2419
2420 if head <= original_buffer_range.start {
2421 tail = original_buffer_range.end;
2422 } else {
2423 tail = original_buffer_range.start;
2424 }
2425 }
2426 SelectMode::Line(original_range) => {
2427 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2428
2429 let position = display_map
2430 .clip_point(position, Bias::Left)
2431 .to_point(&display_map);
2432 let line_start = display_map.prev_line_boundary(position).0;
2433 let next_line_start = buffer.clip_point(
2434 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2435 Bias::Left,
2436 );
2437
2438 if line_start < original_range.start {
2439 head = line_start
2440 } else {
2441 head = next_line_start
2442 }
2443
2444 if head <= original_range.start {
2445 tail = original_range.end;
2446 } else {
2447 tail = original_range.start;
2448 }
2449 }
2450 SelectMode::All => {
2451 return;
2452 }
2453 };
2454
2455 if head < tail {
2456 pending.start = buffer.anchor_before(head);
2457 pending.end = buffer.anchor_before(tail);
2458 pending.reversed = true;
2459 } else {
2460 pending.start = buffer.anchor_before(tail);
2461 pending.end = buffer.anchor_before(head);
2462 pending.reversed = false;
2463 }
2464
2465 self.change_selections(None, cx, |s| {
2466 s.set_pending(pending, mode);
2467 });
2468 } else {
2469 log::error!("update_selection dispatched with no pending selection");
2470 return;
2471 }
2472
2473 self.apply_scroll_delta(scroll_delta, cx);
2474 cx.notify();
2475 }
2476
2477 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2478 self.columnar_selection_tail.take();
2479 if self.selections.pending_anchor().is_some() {
2480 let selections = self.selections.all::<usize>(cx);
2481 self.change_selections(None, cx, |s| {
2482 s.select(selections);
2483 s.clear_pending();
2484 });
2485 }
2486 }
2487
2488 fn select_columns(
2489 &mut self,
2490 tail: DisplayPoint,
2491 head: DisplayPoint,
2492 goal_column: u32,
2493 display_map: &DisplaySnapshot,
2494 cx: &mut ViewContext<Self>,
2495 ) {
2496 let start_row = cmp::min(tail.row(), head.row());
2497 let end_row = cmp::max(tail.row(), head.row());
2498 let start_column = cmp::min(tail.column(), goal_column);
2499 let end_column = cmp::max(tail.column(), goal_column);
2500 let reversed = start_column < tail.column();
2501
2502 let selection_ranges = (start_row.0..=end_row.0)
2503 .map(DisplayRow)
2504 .filter_map(|row| {
2505 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2506 let start = display_map
2507 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2508 .to_point(display_map);
2509 let end = display_map
2510 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2511 .to_point(display_map);
2512 if reversed {
2513 Some(end..start)
2514 } else {
2515 Some(start..end)
2516 }
2517 } else {
2518 None
2519 }
2520 })
2521 .collect::<Vec<_>>();
2522
2523 self.change_selections(None, cx, |s| {
2524 s.select_ranges(selection_ranges);
2525 });
2526 cx.notify();
2527 }
2528
2529 pub fn has_pending_nonempty_selection(&self) -> bool {
2530 let pending_nonempty_selection = match self.selections.pending_anchor() {
2531 Some(Selection { start, end, .. }) => start != end,
2532 None => false,
2533 };
2534 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2535 }
2536
2537 pub fn has_pending_selection(&self) -> bool {
2538 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2539 }
2540
2541 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2542 self.clear_expanded_diff_hunks(cx);
2543 if self.dismiss_menus_and_popups(cx) {
2544 return;
2545 }
2546
2547 if self.mode == EditorMode::Full {
2548 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2549 return;
2550 }
2551 }
2552
2553 cx.propagate();
2554 }
2555
2556 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2557 if self.take_rename(false, cx).is_some() {
2558 return true;
2559 }
2560
2561 if hide_hover(self, cx) {
2562 return true;
2563 }
2564
2565 if self.hide_context_menu(cx).is_some() {
2566 return true;
2567 }
2568
2569 if self.discard_inline_completion(cx) {
2570 return true;
2571 }
2572
2573 if self.snippet_stack.pop().is_some() {
2574 return true;
2575 }
2576
2577 if self.mode == EditorMode::Full {
2578 if self.active_diagnostics.is_some() {
2579 self.dismiss_diagnostics(cx);
2580 return true;
2581 }
2582 }
2583
2584 false
2585 }
2586
2587 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2588 let text: Arc<str> = text.into();
2589
2590 if self.read_only(cx) {
2591 return;
2592 }
2593
2594 let selections = self.selections.all_adjusted(cx);
2595 let mut brace_inserted = false;
2596 let mut edits = Vec::new();
2597 let mut new_selections = Vec::with_capacity(selections.len());
2598 let mut new_autoclose_regions = Vec::new();
2599 let snapshot = self.buffer.read(cx).read(cx);
2600
2601 for (selection, autoclose_region) in
2602 self.selections_with_autoclose_regions(selections, &snapshot)
2603 {
2604 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2605 // Determine if the inserted text matches the opening or closing
2606 // bracket of any of this language's bracket pairs.
2607 let mut bracket_pair = None;
2608 let mut is_bracket_pair_start = false;
2609 let mut is_bracket_pair_end = false;
2610 if !text.is_empty() {
2611 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2612 // and they are removing the character that triggered IME popup.
2613 for (pair, enabled) in scope.brackets() {
2614 if !pair.close {
2615 continue;
2616 }
2617
2618 if enabled && pair.start.ends_with(text.as_ref()) {
2619 bracket_pair = Some(pair.clone());
2620 is_bracket_pair_start = true;
2621 break;
2622 }
2623 if pair.end.as_str() == text.as_ref() {
2624 bracket_pair = Some(pair.clone());
2625 is_bracket_pair_end = true;
2626 break;
2627 }
2628 }
2629 }
2630
2631 if let Some(bracket_pair) = bracket_pair {
2632 if selection.is_empty() {
2633 if is_bracket_pair_start {
2634 let prefix_len = bracket_pair.start.len() - text.len();
2635
2636 // If the inserted text is a suffix of an opening bracket and the
2637 // selection is preceded by the rest of the opening bracket, then
2638 // insert the closing bracket.
2639 let following_text_allows_autoclose = snapshot
2640 .chars_at(selection.start)
2641 .next()
2642 .map_or(true, |c| scope.should_autoclose_before(c));
2643 let preceding_text_matches_prefix = prefix_len == 0
2644 || (selection.start.column >= (prefix_len as u32)
2645 && snapshot.contains_str_at(
2646 Point::new(
2647 selection.start.row,
2648 selection.start.column - (prefix_len as u32),
2649 ),
2650 &bracket_pair.start[..prefix_len],
2651 ));
2652 let autoclose = self.use_autoclose
2653 && snapshot.settings_at(selection.start, cx).use_autoclose;
2654 if autoclose
2655 && following_text_allows_autoclose
2656 && preceding_text_matches_prefix
2657 {
2658 let anchor = snapshot.anchor_before(selection.end);
2659 new_selections.push((selection.map(|_| anchor), text.len()));
2660 new_autoclose_regions.push((
2661 anchor,
2662 text.len(),
2663 selection.id,
2664 bracket_pair.clone(),
2665 ));
2666 edits.push((
2667 selection.range(),
2668 format!("{}{}", text, bracket_pair.end).into(),
2669 ));
2670 brace_inserted = true;
2671 continue;
2672 }
2673 }
2674
2675 if let Some(region) = autoclose_region {
2676 // If the selection is followed by an auto-inserted closing bracket,
2677 // then don't insert that closing bracket again; just move the selection
2678 // past the closing bracket.
2679 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2680 && text.as_ref() == region.pair.end.as_str();
2681 if should_skip {
2682 let anchor = snapshot.anchor_after(selection.end);
2683 new_selections
2684 .push((selection.map(|_| anchor), region.pair.end.len()));
2685 continue;
2686 }
2687 }
2688
2689 let always_treat_brackets_as_autoclosed = snapshot
2690 .settings_at(selection.start, cx)
2691 .always_treat_brackets_as_autoclosed;
2692 if always_treat_brackets_as_autoclosed
2693 && is_bracket_pair_end
2694 && snapshot.contains_str_at(selection.end, text.as_ref())
2695 {
2696 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2697 // and the inserted text is a closing bracket and the selection is followed
2698 // by the closing bracket then move the selection past the closing bracket.
2699 let anchor = snapshot.anchor_after(selection.end);
2700 new_selections.push((selection.map(|_| anchor), text.len()));
2701 continue;
2702 }
2703 }
2704 // If an opening bracket is 1 character long and is typed while
2705 // text is selected, then surround that text with the bracket pair.
2706 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2707 edits.push((selection.start..selection.start, text.clone()));
2708 edits.push((
2709 selection.end..selection.end,
2710 bracket_pair.end.as_str().into(),
2711 ));
2712 brace_inserted = true;
2713 new_selections.push((
2714 Selection {
2715 id: selection.id,
2716 start: snapshot.anchor_after(selection.start),
2717 end: snapshot.anchor_before(selection.end),
2718 reversed: selection.reversed,
2719 goal: selection.goal,
2720 },
2721 0,
2722 ));
2723 continue;
2724 }
2725 }
2726 }
2727
2728 if self.auto_replace_emoji_shortcode
2729 && selection.is_empty()
2730 && text.as_ref().ends_with(':')
2731 {
2732 if let Some(possible_emoji_short_code) =
2733 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2734 {
2735 if !possible_emoji_short_code.is_empty() {
2736 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2737 let emoji_shortcode_start = Point::new(
2738 selection.start.row,
2739 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2740 );
2741
2742 // Remove shortcode from buffer
2743 edits.push((
2744 emoji_shortcode_start..selection.start,
2745 "".to_string().into(),
2746 ));
2747 new_selections.push((
2748 Selection {
2749 id: selection.id,
2750 start: snapshot.anchor_after(emoji_shortcode_start),
2751 end: snapshot.anchor_before(selection.start),
2752 reversed: selection.reversed,
2753 goal: selection.goal,
2754 },
2755 0,
2756 ));
2757
2758 // Insert emoji
2759 let selection_start_anchor = snapshot.anchor_after(selection.start);
2760 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2761 edits.push((selection.start..selection.end, emoji.to_string().into()));
2762
2763 continue;
2764 }
2765 }
2766 }
2767 }
2768
2769 // If not handling any auto-close operation, then just replace the selected
2770 // text with the given input and move the selection to the end of the
2771 // newly inserted text.
2772 let anchor = snapshot.anchor_after(selection.end);
2773 new_selections.push((selection.map(|_| anchor), 0));
2774 edits.push((selection.start..selection.end, text.clone()));
2775 }
2776
2777 drop(snapshot);
2778 self.transact(cx, |this, cx| {
2779 this.buffer.update(cx, |buffer, cx| {
2780 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2781 });
2782
2783 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2784 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2785 let snapshot = this.buffer.read(cx).read(cx);
2786 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2787 .zip(new_selection_deltas)
2788 .map(|(selection, delta)| Selection {
2789 id: selection.id,
2790 start: selection.start + delta,
2791 end: selection.end + delta,
2792 reversed: selection.reversed,
2793 goal: SelectionGoal::None,
2794 })
2795 .collect::<Vec<_>>();
2796
2797 let mut i = 0;
2798 for (position, delta, selection_id, pair) in new_autoclose_regions {
2799 let position = position.to_offset(&snapshot) + delta;
2800 let start = snapshot.anchor_before(position);
2801 let end = snapshot.anchor_after(position);
2802 while let Some(existing_state) = this.autoclose_regions.get(i) {
2803 match existing_state.range.start.cmp(&start, &snapshot) {
2804 Ordering::Less => i += 1,
2805 Ordering::Greater => break,
2806 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2807 Ordering::Less => i += 1,
2808 Ordering::Equal => break,
2809 Ordering::Greater => break,
2810 },
2811 }
2812 }
2813 this.autoclose_regions.insert(
2814 i,
2815 AutocloseRegion {
2816 selection_id,
2817 range: start..end,
2818 pair,
2819 },
2820 );
2821 }
2822
2823 drop(snapshot);
2824 let had_active_inline_completion = this.has_active_inline_completion(cx);
2825 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2826
2827 if brace_inserted {
2828 // If we inserted a brace while composing text (i.e. typing `"` on a
2829 // Brazilian keyboard), exit the composing state because most likely
2830 // the user wanted to surround the selection.
2831 this.unmark_text(cx);
2832 } else if EditorSettings::get_global(cx).use_on_type_format {
2833 if let Some(on_type_format_task) =
2834 this.trigger_on_type_formatting(text.to_string(), cx)
2835 {
2836 on_type_format_task.detach_and_log_err(cx);
2837 }
2838 }
2839
2840 let trigger_in_words = !had_active_inline_completion;
2841 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2842 this.refresh_inline_completion(true, cx);
2843 });
2844 }
2845
2846 fn find_possible_emoji_shortcode_at_position(
2847 snapshot: &MultiBufferSnapshot,
2848 position: Point,
2849 ) -> Option<String> {
2850 let mut chars = Vec::new();
2851 let mut found_colon = false;
2852 for char in snapshot.reversed_chars_at(position).take(100) {
2853 // Found a possible emoji shortcode in the middle of the buffer
2854 if found_colon {
2855 if char.is_whitespace() {
2856 chars.reverse();
2857 return Some(chars.iter().collect());
2858 }
2859 // If the previous character is not a whitespace, we are in the middle of a word
2860 // and we only want to complete the shortcode if the word is made up of other emojis
2861 let mut containing_word = String::new();
2862 for ch in snapshot
2863 .reversed_chars_at(position)
2864 .skip(chars.len() + 1)
2865 .take(100)
2866 {
2867 if ch.is_whitespace() {
2868 break;
2869 }
2870 containing_word.push(ch);
2871 }
2872 let containing_word = containing_word.chars().rev().collect::<String>();
2873 if util::word_consists_of_emojis(containing_word.as_str()) {
2874 chars.reverse();
2875 return Some(chars.iter().collect());
2876 }
2877 }
2878
2879 if char.is_whitespace() || !char.is_ascii() {
2880 return None;
2881 }
2882 if char == ':' {
2883 found_colon = true;
2884 } else {
2885 chars.push(char);
2886 }
2887 }
2888 // Found a possible emoji shortcode at the beginning of the buffer
2889 chars.reverse();
2890 Some(chars.iter().collect())
2891 }
2892
2893 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2894 self.transact(cx, |this, cx| {
2895 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2896 let selections = this.selections.all::<usize>(cx);
2897 let multi_buffer = this.buffer.read(cx);
2898 let buffer = multi_buffer.snapshot(cx);
2899 selections
2900 .iter()
2901 .map(|selection| {
2902 let start_point = selection.start.to_point(&buffer);
2903 let mut indent =
2904 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2905 indent.len = cmp::min(indent.len, start_point.column);
2906 let start = selection.start;
2907 let end = selection.end;
2908 let selection_is_empty = start == end;
2909 let language_scope = buffer.language_scope_at(start);
2910 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2911 &language_scope
2912 {
2913 let leading_whitespace_len = buffer
2914 .reversed_chars_at(start)
2915 .take_while(|c| c.is_whitespace() && *c != '\n')
2916 .map(|c| c.len_utf8())
2917 .sum::<usize>();
2918
2919 let trailing_whitespace_len = buffer
2920 .chars_at(end)
2921 .take_while(|c| c.is_whitespace() && *c != '\n')
2922 .map(|c| c.len_utf8())
2923 .sum::<usize>();
2924
2925 let insert_extra_newline =
2926 language.brackets().any(|(pair, enabled)| {
2927 let pair_start = pair.start.trim_end();
2928 let pair_end = pair.end.trim_start();
2929
2930 enabled
2931 && pair.newline
2932 && buffer.contains_str_at(
2933 end + trailing_whitespace_len,
2934 pair_end,
2935 )
2936 && buffer.contains_str_at(
2937 (start - leading_whitespace_len)
2938 .saturating_sub(pair_start.len()),
2939 pair_start,
2940 )
2941 });
2942
2943 // Comment extension on newline is allowed only for cursor selections
2944 let comment_delimiter = maybe!({
2945 if !selection_is_empty {
2946 return None;
2947 }
2948
2949 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2950 return None;
2951 }
2952
2953 let delimiters = language.line_comment_prefixes();
2954 let max_len_of_delimiter =
2955 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2956 let (snapshot, range) =
2957 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2958
2959 let mut index_of_first_non_whitespace = 0;
2960 let comment_candidate = snapshot
2961 .chars_for_range(range)
2962 .skip_while(|c| {
2963 let should_skip = c.is_whitespace();
2964 if should_skip {
2965 index_of_first_non_whitespace += 1;
2966 }
2967 should_skip
2968 })
2969 .take(max_len_of_delimiter)
2970 .collect::<String>();
2971 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2972 comment_candidate.starts_with(comment_prefix.as_ref())
2973 })?;
2974 let cursor_is_placed_after_comment_marker =
2975 index_of_first_non_whitespace + comment_prefix.len()
2976 <= start_point.column as usize;
2977 if cursor_is_placed_after_comment_marker {
2978 Some(comment_prefix.clone())
2979 } else {
2980 None
2981 }
2982 });
2983 (comment_delimiter, insert_extra_newline)
2984 } else {
2985 (None, false)
2986 };
2987
2988 let capacity_for_delimiter = comment_delimiter
2989 .as_deref()
2990 .map(str::len)
2991 .unwrap_or_default();
2992 let mut new_text =
2993 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2994 new_text.push_str("\n");
2995 new_text.extend(indent.chars());
2996 if let Some(delimiter) = &comment_delimiter {
2997 new_text.push_str(&delimiter);
2998 }
2999 if insert_extra_newline {
3000 new_text = new_text.repeat(2);
3001 }
3002
3003 let anchor = buffer.anchor_after(end);
3004 let new_selection = selection.map(|_| anchor);
3005 (
3006 (start..end, new_text),
3007 (insert_extra_newline, new_selection),
3008 )
3009 })
3010 .unzip()
3011 };
3012
3013 this.edit_with_autoindent(edits, cx);
3014 let buffer = this.buffer.read(cx).snapshot(cx);
3015 let new_selections = selection_fixup_info
3016 .into_iter()
3017 .map(|(extra_newline_inserted, new_selection)| {
3018 let mut cursor = new_selection.end.to_point(&buffer);
3019 if extra_newline_inserted {
3020 cursor.row -= 1;
3021 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3022 }
3023 new_selection.map(|_| cursor)
3024 })
3025 .collect();
3026
3027 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3028 this.refresh_inline_completion(true, cx);
3029 });
3030 }
3031
3032 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3033 let buffer = self.buffer.read(cx);
3034 let snapshot = buffer.snapshot(cx);
3035
3036 let mut edits = Vec::new();
3037 let mut rows = Vec::new();
3038
3039 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3040 let cursor = selection.head();
3041 let row = cursor.row;
3042
3043 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3044
3045 let newline = "\n".to_string();
3046 edits.push((start_of_line..start_of_line, newline));
3047
3048 rows.push(row + rows_inserted as u32);
3049 }
3050
3051 self.transact(cx, |editor, cx| {
3052 editor.edit(edits, cx);
3053
3054 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3055 let mut index = 0;
3056 s.move_cursors_with(|map, _, _| {
3057 let row = rows[index];
3058 index += 1;
3059
3060 let point = Point::new(row, 0);
3061 let boundary = map.next_line_boundary(point).1;
3062 let clipped = map.clip_point(boundary, Bias::Left);
3063
3064 (clipped, SelectionGoal::None)
3065 });
3066 });
3067
3068 let mut indent_edits = Vec::new();
3069 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3070 for row in rows {
3071 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3072 for (row, indent) in indents {
3073 if indent.len == 0 {
3074 continue;
3075 }
3076
3077 let text = match indent.kind {
3078 IndentKind::Space => " ".repeat(indent.len as usize),
3079 IndentKind::Tab => "\t".repeat(indent.len as usize),
3080 };
3081 let point = Point::new(row.0, 0);
3082 indent_edits.push((point..point, text));
3083 }
3084 }
3085 editor.edit(indent_edits, cx);
3086 });
3087 }
3088
3089 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3090 let buffer = self.buffer.read(cx);
3091 let snapshot = buffer.snapshot(cx);
3092
3093 let mut edits = Vec::new();
3094 let mut rows = Vec::new();
3095 let mut rows_inserted = 0;
3096
3097 for selection in self.selections.all_adjusted(cx) {
3098 let cursor = selection.head();
3099 let row = cursor.row;
3100
3101 let point = Point::new(row + 1, 0);
3102 let start_of_line = snapshot.clip_point(point, Bias::Left);
3103
3104 let newline = "\n".to_string();
3105 edits.push((start_of_line..start_of_line, newline));
3106
3107 rows_inserted += 1;
3108 rows.push(row + rows_inserted);
3109 }
3110
3111 self.transact(cx, |editor, cx| {
3112 editor.edit(edits, cx);
3113
3114 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3115 let mut index = 0;
3116 s.move_cursors_with(|map, _, _| {
3117 let row = rows[index];
3118 index += 1;
3119
3120 let point = Point::new(row, 0);
3121 let boundary = map.next_line_boundary(point).1;
3122 let clipped = map.clip_point(boundary, Bias::Left);
3123
3124 (clipped, SelectionGoal::None)
3125 });
3126 });
3127
3128 let mut indent_edits = Vec::new();
3129 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3130 for row in rows {
3131 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3132 for (row, indent) in indents {
3133 if indent.len == 0 {
3134 continue;
3135 }
3136
3137 let text = match indent.kind {
3138 IndentKind::Space => " ".repeat(indent.len as usize),
3139 IndentKind::Tab => "\t".repeat(indent.len as usize),
3140 };
3141 let point = Point::new(row.0, 0);
3142 indent_edits.push((point..point, text));
3143 }
3144 }
3145 editor.edit(indent_edits, cx);
3146 });
3147 }
3148
3149 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3150 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3151 original_indent_columns: Vec::new(),
3152 });
3153 self.insert_with_autoindent_mode(text, autoindent, cx);
3154 }
3155
3156 fn insert_with_autoindent_mode(
3157 &mut self,
3158 text: &str,
3159 autoindent_mode: Option<AutoindentMode>,
3160 cx: &mut ViewContext<Self>,
3161 ) {
3162 if self.read_only(cx) {
3163 return;
3164 }
3165
3166 let text: Arc<str> = text.into();
3167 self.transact(cx, |this, cx| {
3168 let old_selections = this.selections.all_adjusted(cx);
3169 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3170 let anchors = {
3171 let snapshot = buffer.read(cx);
3172 old_selections
3173 .iter()
3174 .map(|s| {
3175 let anchor = snapshot.anchor_after(s.head());
3176 s.map(|_| anchor)
3177 })
3178 .collect::<Vec<_>>()
3179 };
3180 buffer.edit(
3181 old_selections
3182 .iter()
3183 .map(|s| (s.start..s.end, text.clone())),
3184 autoindent_mode,
3185 cx,
3186 );
3187 anchors
3188 });
3189
3190 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3191 s.select_anchors(selection_anchors);
3192 })
3193 });
3194 }
3195
3196 fn trigger_completion_on_input(
3197 &mut self,
3198 text: &str,
3199 trigger_in_words: bool,
3200 cx: &mut ViewContext<Self>,
3201 ) {
3202 if !EditorSettings::get_global(cx).show_completions_on_input {
3203 return;
3204 }
3205
3206 let selection = self.selections.newest_anchor();
3207 if self
3208 .buffer
3209 .read(cx)
3210 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3211 {
3212 self.show_completions(&ShowCompletions, cx);
3213 } else {
3214 self.hide_context_menu(cx);
3215 }
3216 }
3217
3218 /// If any empty selections is touching the start of its innermost containing autoclose
3219 /// region, expand it to select the brackets.
3220 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3221 let selections = self.selections.all::<usize>(cx);
3222 let buffer = self.buffer.read(cx).read(cx);
3223 let new_selections = self
3224 .selections_with_autoclose_regions(selections, &buffer)
3225 .map(|(mut selection, region)| {
3226 if !selection.is_empty() {
3227 return selection;
3228 }
3229
3230 if let Some(region) = region {
3231 let mut range = region.range.to_offset(&buffer);
3232 if selection.start == range.start && range.start >= region.pair.start.len() {
3233 range.start -= region.pair.start.len();
3234 if buffer.contains_str_at(range.start, ®ion.pair.start)
3235 && buffer.contains_str_at(range.end, ®ion.pair.end)
3236 {
3237 range.end += region.pair.end.len();
3238 selection.start = range.start;
3239 selection.end = range.end;
3240
3241 return selection;
3242 }
3243 }
3244 }
3245
3246 let always_treat_brackets_as_autoclosed = buffer
3247 .settings_at(selection.start, cx)
3248 .always_treat_brackets_as_autoclosed;
3249
3250 if !always_treat_brackets_as_autoclosed {
3251 return selection;
3252 }
3253
3254 if let Some(scope) = buffer.language_scope_at(selection.start) {
3255 for (pair, enabled) in scope.brackets() {
3256 if !enabled || !pair.close {
3257 continue;
3258 }
3259
3260 if buffer.contains_str_at(selection.start, &pair.end) {
3261 let pair_start_len = pair.start.len();
3262 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3263 {
3264 selection.start -= pair_start_len;
3265 selection.end += pair.end.len();
3266
3267 return selection;
3268 }
3269 }
3270 }
3271 }
3272
3273 selection
3274 })
3275 .collect();
3276
3277 drop(buffer);
3278 self.change_selections(None, cx, |selections| selections.select(new_selections));
3279 }
3280
3281 /// Iterate the given selections, and for each one, find the smallest surrounding
3282 /// autoclose region. This uses the ordering of the selections and the autoclose
3283 /// regions to avoid repeated comparisons.
3284 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3285 &'a self,
3286 selections: impl IntoIterator<Item = Selection<D>>,
3287 buffer: &'a MultiBufferSnapshot,
3288 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3289 let mut i = 0;
3290 let mut regions = self.autoclose_regions.as_slice();
3291 selections.into_iter().map(move |selection| {
3292 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3293
3294 let mut enclosing = None;
3295 while let Some(pair_state) = regions.get(i) {
3296 if pair_state.range.end.to_offset(buffer) < range.start {
3297 regions = ®ions[i + 1..];
3298 i = 0;
3299 } else if pair_state.range.start.to_offset(buffer) > range.end {
3300 break;
3301 } else {
3302 if pair_state.selection_id == selection.id {
3303 enclosing = Some(pair_state);
3304 }
3305 i += 1;
3306 }
3307 }
3308
3309 (selection.clone(), enclosing)
3310 })
3311 }
3312
3313 /// Remove any autoclose regions that no longer contain their selection.
3314 fn invalidate_autoclose_regions(
3315 &mut self,
3316 mut selections: &[Selection<Anchor>],
3317 buffer: &MultiBufferSnapshot,
3318 ) {
3319 self.autoclose_regions.retain(|state| {
3320 let mut i = 0;
3321 while let Some(selection) = selections.get(i) {
3322 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3323 selections = &selections[1..];
3324 continue;
3325 }
3326 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3327 break;
3328 }
3329 if selection.id == state.selection_id {
3330 return true;
3331 } else {
3332 i += 1;
3333 }
3334 }
3335 false
3336 });
3337 }
3338
3339 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3340 let offset = position.to_offset(buffer);
3341 let (word_range, kind) = buffer.surrounding_word(offset);
3342 if offset > word_range.start && kind == Some(CharKind::Word) {
3343 Some(
3344 buffer
3345 .text_for_range(word_range.start..offset)
3346 .collect::<String>(),
3347 )
3348 } else {
3349 None
3350 }
3351 }
3352
3353 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3354 self.refresh_inlay_hints(
3355 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3356 cx,
3357 );
3358 }
3359
3360 pub fn inlay_hints_enabled(&self) -> bool {
3361 self.inlay_hint_cache.enabled
3362 }
3363
3364 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3365 if self.project.is_none() || self.mode != EditorMode::Full {
3366 return;
3367 }
3368
3369 let reason_description = reason.description();
3370 let ignore_debounce = matches!(
3371 reason,
3372 InlayHintRefreshReason::SettingsChange(_)
3373 | InlayHintRefreshReason::Toggle(_)
3374 | InlayHintRefreshReason::ExcerptsRemoved(_)
3375 );
3376 let (invalidate_cache, required_languages) = match reason {
3377 InlayHintRefreshReason::Toggle(enabled) => {
3378 self.inlay_hint_cache.enabled = enabled;
3379 if enabled {
3380 (InvalidationStrategy::RefreshRequested, None)
3381 } else {
3382 self.inlay_hint_cache.clear();
3383 self.splice_inlays(
3384 self.visible_inlay_hints(cx)
3385 .iter()
3386 .map(|inlay| inlay.id)
3387 .collect(),
3388 Vec::new(),
3389 cx,
3390 );
3391 return;
3392 }
3393 }
3394 InlayHintRefreshReason::SettingsChange(new_settings) => {
3395 match self.inlay_hint_cache.update_settings(
3396 &self.buffer,
3397 new_settings,
3398 self.visible_inlay_hints(cx),
3399 cx,
3400 ) {
3401 ControlFlow::Break(Some(InlaySplice {
3402 to_remove,
3403 to_insert,
3404 })) => {
3405 self.splice_inlays(to_remove, to_insert, cx);
3406 return;
3407 }
3408 ControlFlow::Break(None) => return,
3409 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3410 }
3411 }
3412 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3413 if let Some(InlaySplice {
3414 to_remove,
3415 to_insert,
3416 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3417 {
3418 self.splice_inlays(to_remove, to_insert, cx);
3419 }
3420 return;
3421 }
3422 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3423 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3424 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3425 }
3426 InlayHintRefreshReason::RefreshRequested => {
3427 (InvalidationStrategy::RefreshRequested, None)
3428 }
3429 };
3430
3431 if let Some(InlaySplice {
3432 to_remove,
3433 to_insert,
3434 }) = self.inlay_hint_cache.spawn_hint_refresh(
3435 reason_description,
3436 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3437 invalidate_cache,
3438 ignore_debounce,
3439 cx,
3440 ) {
3441 self.splice_inlays(to_remove, to_insert, cx);
3442 }
3443 }
3444
3445 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3446 self.display_map
3447 .read(cx)
3448 .current_inlays()
3449 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3450 .cloned()
3451 .collect()
3452 }
3453
3454 pub fn excerpts_for_inlay_hints_query(
3455 &self,
3456 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3457 cx: &mut ViewContext<Editor>,
3458 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3459 let Some(project) = self.project.as_ref() else {
3460 return HashMap::default();
3461 };
3462 let project = project.read(cx);
3463 let multi_buffer = self.buffer().read(cx);
3464 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3465 let multi_buffer_visible_start = self
3466 .scroll_manager
3467 .anchor()
3468 .anchor
3469 .to_point(&multi_buffer_snapshot);
3470 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3471 multi_buffer_visible_start
3472 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3473 Bias::Left,
3474 );
3475 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3476 multi_buffer
3477 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3478 .into_iter()
3479 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3480 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3481 let buffer = buffer_handle.read(cx);
3482 let buffer_file = project::File::from_dyn(buffer.file())?;
3483 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3484 let worktree_entry = buffer_worktree
3485 .read(cx)
3486 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3487 if worktree_entry.is_ignored {
3488 return None;
3489 }
3490
3491 let language = buffer.language()?;
3492 if let Some(restrict_to_languages) = restrict_to_languages {
3493 if !restrict_to_languages.contains(language) {
3494 return None;
3495 }
3496 }
3497 Some((
3498 excerpt_id,
3499 (
3500 buffer_handle,
3501 buffer.version().clone(),
3502 excerpt_visible_range,
3503 ),
3504 ))
3505 })
3506 .collect()
3507 }
3508
3509 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3510 TextLayoutDetails {
3511 text_system: cx.text_system().clone(),
3512 editor_style: self.style.clone().unwrap(),
3513 rem_size: cx.rem_size(),
3514 scroll_anchor: self.scroll_manager.anchor(),
3515 visible_rows: self.visible_line_count(),
3516 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3517 }
3518 }
3519
3520 fn splice_inlays(
3521 &self,
3522 to_remove: Vec<InlayId>,
3523 to_insert: Vec<Inlay>,
3524 cx: &mut ViewContext<Self>,
3525 ) {
3526 self.display_map.update(cx, |display_map, cx| {
3527 display_map.splice_inlays(to_remove, to_insert, cx);
3528 });
3529 cx.notify();
3530 }
3531
3532 fn trigger_on_type_formatting(
3533 &self,
3534 input: String,
3535 cx: &mut ViewContext<Self>,
3536 ) -> Option<Task<Result<()>>> {
3537 if input.len() != 1 {
3538 return None;
3539 }
3540
3541 let project = self.project.as_ref()?;
3542 let position = self.selections.newest_anchor().head();
3543 let (buffer, buffer_position) = self
3544 .buffer
3545 .read(cx)
3546 .text_anchor_for_position(position, cx)?;
3547
3548 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3549 // hence we do LSP request & edit on host side only — add formats to host's history.
3550 let push_to_lsp_host_history = true;
3551 // If this is not the host, append its history with new edits.
3552 let push_to_client_history = project.read(cx).is_remote();
3553
3554 let on_type_formatting = project.update(cx, |project, cx| {
3555 project.on_type_format(
3556 buffer.clone(),
3557 buffer_position,
3558 input,
3559 push_to_lsp_host_history,
3560 cx,
3561 )
3562 });
3563 Some(cx.spawn(|editor, mut cx| async move {
3564 if let Some(transaction) = on_type_formatting.await? {
3565 if push_to_client_history {
3566 buffer
3567 .update(&mut cx, |buffer, _| {
3568 buffer.push_transaction(transaction, Instant::now());
3569 })
3570 .ok();
3571 }
3572 editor.update(&mut cx, |editor, cx| {
3573 editor.refresh_document_highlights(cx);
3574 })?;
3575 }
3576 Ok(())
3577 }))
3578 }
3579
3580 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3581 if self.pending_rename.is_some() {
3582 return;
3583 }
3584
3585 let Some(provider) = self.completion_provider.as_ref() else {
3586 return;
3587 };
3588
3589 let position = self.selections.newest_anchor().head();
3590 let (buffer, buffer_position) =
3591 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3592 output
3593 } else {
3594 return;
3595 };
3596
3597 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3598 let completions = provider.completions(&buffer, buffer_position, cx);
3599
3600 let id = post_inc(&mut self.next_completion_id);
3601 let task = cx.spawn(|this, mut cx| {
3602 async move {
3603 let completions = completions.await.log_err();
3604 let menu = if let Some(completions) = completions {
3605 let mut menu = CompletionsMenu {
3606 id,
3607 initial_position: position,
3608 match_candidates: completions
3609 .iter()
3610 .enumerate()
3611 .map(|(id, completion)| {
3612 StringMatchCandidate::new(
3613 id,
3614 completion.label.text[completion.label.filter_range.clone()]
3615 .into(),
3616 )
3617 })
3618 .collect(),
3619 buffer: buffer.clone(),
3620 completions: Arc::new(RwLock::new(completions.into())),
3621 matches: Vec::new().into(),
3622 selected_item: 0,
3623 scroll_handle: UniformListScrollHandle::new(),
3624 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3625 DebouncedDelay::new(),
3626 )),
3627 };
3628 menu.filter(query.as_deref(), cx.background_executor().clone())
3629 .await;
3630
3631 if menu.matches.is_empty() {
3632 None
3633 } else {
3634 this.update(&mut cx, |editor, cx| {
3635 let completions = menu.completions.clone();
3636 let matches = menu.matches.clone();
3637
3638 let delay_ms = EditorSettings::get_global(cx)
3639 .completion_documentation_secondary_query_debounce;
3640 let delay = Duration::from_millis(delay_ms);
3641
3642 editor
3643 .completion_documentation_pre_resolve_debounce
3644 .fire_new(delay, cx, |editor, cx| {
3645 CompletionsMenu::pre_resolve_completion_documentation(
3646 buffer,
3647 completions,
3648 matches,
3649 editor,
3650 cx,
3651 )
3652 });
3653 })
3654 .ok();
3655 Some(menu)
3656 }
3657 } else {
3658 None
3659 };
3660
3661 this.update(&mut cx, |this, cx| {
3662 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3663
3664 let mut context_menu = this.context_menu.write();
3665 match context_menu.as_ref() {
3666 None => {}
3667
3668 Some(ContextMenu::Completions(prev_menu)) => {
3669 if prev_menu.id > id {
3670 return;
3671 }
3672 }
3673
3674 _ => return,
3675 }
3676
3677 if this.focus_handle.is_focused(cx) && menu.is_some() {
3678 let menu = menu.unwrap();
3679 *context_menu = Some(ContextMenu::Completions(menu));
3680 drop(context_menu);
3681 this.discard_inline_completion(cx);
3682 cx.notify();
3683 } else if this.completion_tasks.len() <= 1 {
3684 // If there are no more completion tasks and the last menu was
3685 // empty, we should hide it. If it was already hidden, we should
3686 // also show the copilot completion when available.
3687 drop(context_menu);
3688 if this.hide_context_menu(cx).is_none() {
3689 this.update_visible_inline_completion(cx);
3690 }
3691 }
3692 })?;
3693
3694 Ok::<_, anyhow::Error>(())
3695 }
3696 .log_err()
3697 });
3698
3699 self.completion_tasks.push((id, task));
3700 }
3701
3702 pub fn confirm_completion(
3703 &mut self,
3704 action: &ConfirmCompletion,
3705 cx: &mut ViewContext<Self>,
3706 ) -> Option<Task<Result<()>>> {
3707 use language::ToOffset as _;
3708
3709 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3710 menu
3711 } else {
3712 return None;
3713 };
3714
3715 let mat = completions_menu
3716 .matches
3717 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3718 let buffer_handle = completions_menu.buffer;
3719 let completions = completions_menu.completions.read();
3720 let completion = completions.get(mat.candidate_id)?;
3721 cx.stop_propagation();
3722
3723 let snippet;
3724 let text;
3725 if completion.is_snippet() {
3726 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3727 text = snippet.as_ref().unwrap().text.clone();
3728 } else {
3729 snippet = None;
3730 text = completion.new_text.clone();
3731 };
3732 let selections = self.selections.all::<usize>(cx);
3733 let buffer = buffer_handle.read(cx);
3734 let old_range = completion.old_range.to_offset(buffer);
3735 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3736
3737 let newest_selection = self.selections.newest_anchor();
3738 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3739 return None;
3740 }
3741
3742 let lookbehind = newest_selection
3743 .start
3744 .text_anchor
3745 .to_offset(buffer)
3746 .saturating_sub(old_range.start);
3747 let lookahead = old_range
3748 .end
3749 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3750 let mut common_prefix_len = old_text
3751 .bytes()
3752 .zip(text.bytes())
3753 .take_while(|(a, b)| a == b)
3754 .count();
3755
3756 let snapshot = self.buffer.read(cx).snapshot(cx);
3757 let mut range_to_replace: Option<Range<isize>> = None;
3758 let mut ranges = Vec::new();
3759 for selection in &selections {
3760 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3761 let start = selection.start.saturating_sub(lookbehind);
3762 let end = selection.end + lookahead;
3763 if selection.id == newest_selection.id {
3764 range_to_replace = Some(
3765 ((start + common_prefix_len) as isize - selection.start as isize)
3766 ..(end as isize - selection.start as isize),
3767 );
3768 }
3769 ranges.push(start + common_prefix_len..end);
3770 } else {
3771 common_prefix_len = 0;
3772 ranges.clear();
3773 ranges.extend(selections.iter().map(|s| {
3774 if s.id == newest_selection.id {
3775 range_to_replace = Some(
3776 old_range.start.to_offset_utf16(&snapshot).0 as isize
3777 - selection.start as isize
3778 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3779 - selection.start as isize,
3780 );
3781 old_range.clone()
3782 } else {
3783 s.start..s.end
3784 }
3785 }));
3786 break;
3787 }
3788 }
3789 let text = &text[common_prefix_len..];
3790
3791 cx.emit(EditorEvent::InputHandled {
3792 utf16_range_to_replace: range_to_replace,
3793 text: text.into(),
3794 });
3795
3796 self.transact(cx, |this, cx| {
3797 if let Some(mut snippet) = snippet {
3798 snippet.text = text.to_string();
3799 for tabstop in snippet.tabstops.iter_mut().flatten() {
3800 tabstop.start -= common_prefix_len as isize;
3801 tabstop.end -= common_prefix_len as isize;
3802 }
3803
3804 this.insert_snippet(&ranges, snippet, cx).log_err();
3805 } else {
3806 this.buffer.update(cx, |buffer, cx| {
3807 buffer.edit(
3808 ranges.iter().map(|range| (range.clone(), text)),
3809 this.autoindent_mode.clone(),
3810 cx,
3811 );
3812 });
3813 }
3814
3815 this.refresh_inline_completion(true, cx);
3816 });
3817
3818 let provider = self.completion_provider.as_ref()?;
3819 let apply_edits = provider.apply_additional_edits_for_completion(
3820 buffer_handle,
3821 completion.clone(),
3822 true,
3823 cx,
3824 );
3825 Some(cx.foreground_executor().spawn(async move {
3826 apply_edits.await?;
3827 Ok(())
3828 }))
3829 }
3830
3831 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3832 let mut context_menu = self.context_menu.write();
3833 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3834 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3835 // Toggle if we're selecting the same one
3836 *context_menu = None;
3837 cx.notify();
3838 return;
3839 } else {
3840 // Otherwise, clear it and start a new one
3841 *context_menu = None;
3842 cx.notify();
3843 }
3844 }
3845 drop(context_menu);
3846 let snapshot = self.snapshot(cx);
3847 let deployed_from_indicator = action.deployed_from_indicator;
3848 let mut task = self.code_actions_task.take();
3849 let action = action.clone();
3850 cx.spawn(|this, mut cx| async move {
3851 while let Some(prev_task) = task {
3852 prev_task.await;
3853 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3854 }
3855
3856 let spawned_test_task = this.update(&mut cx, |this, cx| {
3857 if this.focus_handle.is_focused(cx) {
3858 let multibuffer_point = action
3859 .deployed_from_indicator
3860 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3861 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head());
3862 let (buffer, buffer_row) = snapshot
3863 .buffer_snapshot
3864 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3865 .and_then(|(buffer_snapshot, range)| {
3866 this.buffer
3867 .read(cx)
3868 .buffer(buffer_snapshot.remote_id())
3869 .map(|buffer| (buffer, range.start.row))
3870 })?;
3871 let (_, code_actions) = this
3872 .available_code_actions
3873 .clone()
3874 .and_then(|(location, code_actions)| {
3875 let snapshot = location.buffer.read(cx).snapshot();
3876 let point_range = location.range.to_point(&snapshot);
3877 let point_range = point_range.start.row..=point_range.end.row;
3878 if point_range.contains(&buffer_row) {
3879 Some((location, code_actions))
3880 } else {
3881 None
3882 }
3883 })
3884 .unzip();
3885 let buffer_id = buffer.read(cx).remote_id();
3886 let tasks = this
3887 .tasks
3888 .get(&(buffer_id, buffer_row))
3889 .map(|t| Arc::new(t.to_owned()));
3890 if tasks.is_none() && code_actions.is_none() {
3891 return None;
3892 }
3893
3894 this.completion_tasks.clear();
3895 this.discard_inline_completion(cx);
3896 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3897 |(tasks, (workspace, _))| {
3898 let position = Point::new(buffer_row, tasks.1.column);
3899 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3900 let location = Location {
3901 buffer: buffer.clone(),
3902 range: range_start..range_start,
3903 };
3904 workspace
3905 .update(cx, |workspace, cx| {
3906 tasks::task_context_for_location(workspace, location, cx)
3907 })
3908 .ok()
3909 .flatten()
3910 },
3911 );
3912 let tasks = tasks.zip(task_context).map(|(tasks, mut task_context)| {
3913 // Fill in the environmental variables from the tree-sitter captures
3914 let mut additional_task_variables = TaskVariables::default();
3915 for (capture_name, value) in tasks.1.extra_variables.clone() {
3916 additional_task_variables.insert(
3917 task::VariableName::Custom(capture_name.into()),
3918 value.clone(),
3919 );
3920 }
3921 task_context
3922 .task_variables
3923 .extend(additional_task_variables);
3924
3925 Arc::new(ResolvedTasks {
3926 templates: tasks
3927 .1
3928 .templates
3929 .iter()
3930 .filter_map(|(kind, template)| {
3931 template
3932 .resolve_task(&kind.to_id_base(), &task_context)
3933 .map(|task| (kind.clone(), task))
3934 })
3935 .collect(),
3936 position: snapshot
3937 .buffer_snapshot
3938 .anchor_before(Point::new(multibuffer_point.row, tasks.1.column)),
3939 })
3940 });
3941 let spawn_straight_away = tasks
3942 .as_ref()
3943 .map_or(false, |tasks| tasks.templates.len() == 1)
3944 && code_actions
3945 .as_ref()
3946 .map_or(true, |actions| actions.is_empty());
3947 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3948 buffer,
3949 actions: CodeActionContents {
3950 tasks,
3951 actions: code_actions,
3952 },
3953 selected_item: Default::default(),
3954 scroll_handle: UniformListScrollHandle::default(),
3955 deployed_from_indicator,
3956 }));
3957 if spawn_straight_away {
3958 if let Some(task) =
3959 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3960 {
3961 cx.notify();
3962 return Some(task);
3963 }
3964 }
3965 cx.notify();
3966 }
3967 Some(Task::ready(Ok(())))
3968 })?;
3969 if let Some(task) = spawned_test_task {
3970 task.await?;
3971 }
3972
3973 Ok::<_, anyhow::Error>(())
3974 })
3975 .detach_and_log_err(cx);
3976 }
3977
3978 pub fn confirm_code_action(
3979 &mut self,
3980 action: &ConfirmCodeAction,
3981 cx: &mut ViewContext<Self>,
3982 ) -> Option<Task<Result<()>>> {
3983 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3984 menu
3985 } else {
3986 return None;
3987 };
3988 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3989 let action = actions_menu.actions.get(action_ix)?;
3990 let title = action.label();
3991 let buffer = actions_menu.buffer;
3992 let workspace = self.workspace()?;
3993
3994 match action {
3995 CodeActionsItem::Task(task_source_kind, resolved_task) => {
3996 workspace.update(cx, |workspace, cx| {
3997 workspace::tasks::schedule_resolved_task(
3998 workspace,
3999 task_source_kind,
4000 resolved_task,
4001 false,
4002 cx,
4003 );
4004
4005 Some(Task::ready(Ok(())))
4006 })
4007 }
4008 CodeActionsItem::CodeAction(action) => {
4009 let apply_code_actions = workspace
4010 .read(cx)
4011 .project()
4012 .clone()
4013 .update(cx, |project, cx| {
4014 project.apply_code_action(buffer, action, true, cx)
4015 });
4016 let workspace = workspace.downgrade();
4017 Some(cx.spawn(|editor, cx| async move {
4018 let project_transaction = apply_code_actions.await?;
4019 Self::open_project_transaction(
4020 &editor,
4021 workspace,
4022 project_transaction,
4023 title,
4024 cx,
4025 )
4026 .await
4027 }))
4028 }
4029 }
4030 }
4031
4032 async fn open_project_transaction(
4033 this: &WeakView<Editor>,
4034 workspace: WeakView<Workspace>,
4035 transaction: ProjectTransaction,
4036 title: String,
4037 mut cx: AsyncWindowContext,
4038 ) -> Result<()> {
4039 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4040
4041 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4042 cx.update(|cx| {
4043 entries.sort_unstable_by_key(|(buffer, _)| {
4044 buffer.read(cx).file().map(|f| f.path().clone())
4045 });
4046 })?;
4047
4048 // If the project transaction's edits are all contained within this editor, then
4049 // avoid opening a new editor to display them.
4050
4051 if let Some((buffer, transaction)) = entries.first() {
4052 if entries.len() == 1 {
4053 let excerpt = this.update(&mut cx, |editor, cx| {
4054 editor
4055 .buffer()
4056 .read(cx)
4057 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4058 })?;
4059 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4060 if excerpted_buffer == *buffer {
4061 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4062 let excerpt_range = excerpt_range.to_offset(buffer);
4063 buffer
4064 .edited_ranges_for_transaction::<usize>(transaction)
4065 .all(|range| {
4066 excerpt_range.start <= range.start
4067 && excerpt_range.end >= range.end
4068 })
4069 })?;
4070
4071 if all_edits_within_excerpt {
4072 return Ok(());
4073 }
4074 }
4075 }
4076 }
4077 } else {
4078 return Ok(());
4079 }
4080
4081 let mut ranges_to_highlight = Vec::new();
4082 let excerpt_buffer = cx.new_model(|cx| {
4083 let mut multibuffer =
4084 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4085 for (buffer_handle, transaction) in &entries {
4086 let buffer = buffer_handle.read(cx);
4087 ranges_to_highlight.extend(
4088 multibuffer.push_excerpts_with_context_lines(
4089 buffer_handle.clone(),
4090 buffer
4091 .edited_ranges_for_transaction::<usize>(transaction)
4092 .collect(),
4093 DEFAULT_MULTIBUFFER_CONTEXT,
4094 cx,
4095 ),
4096 );
4097 }
4098 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4099 multibuffer
4100 })?;
4101
4102 workspace.update(&mut cx, |workspace, cx| {
4103 let project = workspace.project().clone();
4104 let editor =
4105 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4106 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4107 editor.update(cx, |editor, cx| {
4108 editor.highlight_background::<Self>(
4109 &ranges_to_highlight,
4110 |theme| theme.editor_highlighted_line_background,
4111 cx,
4112 );
4113 });
4114 })?;
4115
4116 Ok(())
4117 }
4118
4119 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4120 let project = self.project.clone()?;
4121 let buffer = self.buffer.read(cx);
4122 let newest_selection = self.selections.newest_anchor().clone();
4123 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4124 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4125 if start_buffer != end_buffer {
4126 return None;
4127 }
4128
4129 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4130 cx.background_executor()
4131 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4132 .await;
4133
4134 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4135 project.code_actions(&start_buffer, start..end, cx)
4136 }) {
4137 code_actions.await
4138 } else {
4139 Vec::new()
4140 };
4141
4142 this.update(&mut cx, |this, cx| {
4143 this.available_code_actions = if actions.is_empty() {
4144 None
4145 } else {
4146 Some((
4147 Location {
4148 buffer: start_buffer,
4149 range: start..end,
4150 },
4151 actions.into(),
4152 ))
4153 };
4154 cx.notify();
4155 })
4156 .log_err();
4157 }));
4158 None
4159 }
4160
4161 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4162 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4163 self.show_git_blame_inline = false;
4164
4165 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4166 cx.background_executor().timer(delay).await;
4167
4168 this.update(&mut cx, |this, cx| {
4169 this.show_git_blame_inline = true;
4170 cx.notify();
4171 })
4172 .log_err();
4173 }));
4174 }
4175 }
4176
4177 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4178 if self.pending_rename.is_some() {
4179 return None;
4180 }
4181
4182 let project = self.project.clone()?;
4183 let buffer = self.buffer.read(cx);
4184 let newest_selection = self.selections.newest_anchor().clone();
4185 let cursor_position = newest_selection.head();
4186 let (cursor_buffer, cursor_buffer_position) =
4187 buffer.text_anchor_for_position(cursor_position, cx)?;
4188 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4189 if cursor_buffer != tail_buffer {
4190 return None;
4191 }
4192
4193 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4194 cx.background_executor()
4195 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4196 .await;
4197
4198 let highlights = if let Some(highlights) = project
4199 .update(&mut cx, |project, cx| {
4200 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4201 })
4202 .log_err()
4203 {
4204 highlights.await.log_err()
4205 } else {
4206 None
4207 };
4208
4209 if let Some(highlights) = highlights {
4210 this.update(&mut cx, |this, cx| {
4211 if this.pending_rename.is_some() {
4212 return;
4213 }
4214
4215 let buffer_id = cursor_position.buffer_id;
4216 let buffer = this.buffer.read(cx);
4217 if !buffer
4218 .text_anchor_for_position(cursor_position, cx)
4219 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4220 {
4221 return;
4222 }
4223
4224 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4225 let mut write_ranges = Vec::new();
4226 let mut read_ranges = Vec::new();
4227 for highlight in highlights {
4228 for (excerpt_id, excerpt_range) in
4229 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4230 {
4231 let start = highlight
4232 .range
4233 .start
4234 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4235 let end = highlight
4236 .range
4237 .end
4238 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4239 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4240 continue;
4241 }
4242
4243 let range = Anchor {
4244 buffer_id,
4245 excerpt_id: excerpt_id,
4246 text_anchor: start,
4247 }..Anchor {
4248 buffer_id,
4249 excerpt_id,
4250 text_anchor: end,
4251 };
4252 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4253 write_ranges.push(range);
4254 } else {
4255 read_ranges.push(range);
4256 }
4257 }
4258 }
4259
4260 this.highlight_background::<DocumentHighlightRead>(
4261 &read_ranges,
4262 |theme| theme.editor_document_highlight_read_background,
4263 cx,
4264 );
4265 this.highlight_background::<DocumentHighlightWrite>(
4266 &write_ranges,
4267 |theme| theme.editor_document_highlight_write_background,
4268 cx,
4269 );
4270 cx.notify();
4271 })
4272 .log_err();
4273 }
4274 }));
4275 None
4276 }
4277
4278 fn refresh_inline_completion(
4279 &mut self,
4280 debounce: bool,
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 self.discard_inline_completion(cx);
4291 return None;
4292 }
4293
4294 self.update_visible_inline_completion(cx);
4295 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4296 Some(())
4297 }
4298
4299 fn cycle_inline_completion(
4300 &mut self,
4301 direction: Direction,
4302 cx: &mut ViewContext<Self>,
4303 ) -> Option<()> {
4304 let provider = self.inline_completion_provider()?;
4305 let cursor = self.selections.newest_anchor().head();
4306 let (buffer, cursor_buffer_position) =
4307 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4308 if !self.show_inline_completions
4309 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4310 {
4311 return None;
4312 }
4313
4314 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4315 self.update_visible_inline_completion(cx);
4316
4317 Some(())
4318 }
4319
4320 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4321 if !self.has_active_inline_completion(cx) {
4322 self.refresh_inline_completion(false, cx);
4323 return;
4324 }
4325
4326 self.update_visible_inline_completion(cx);
4327 }
4328
4329 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4330 self.show_cursor_names(cx);
4331 }
4332
4333 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4334 self.show_cursor_names = true;
4335 cx.notify();
4336 cx.spawn(|this, mut cx| async move {
4337 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4338 this.update(&mut cx, |this, cx| {
4339 this.show_cursor_names = false;
4340 cx.notify()
4341 })
4342 .ok()
4343 })
4344 .detach();
4345 }
4346
4347 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4348 if self.has_active_inline_completion(cx) {
4349 self.cycle_inline_completion(Direction::Next, cx);
4350 } else {
4351 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4352 if is_copilot_disabled {
4353 cx.propagate();
4354 }
4355 }
4356 }
4357
4358 pub fn previous_inline_completion(
4359 &mut self,
4360 _: &PreviousInlineCompletion,
4361 cx: &mut ViewContext<Self>,
4362 ) {
4363 if self.has_active_inline_completion(cx) {
4364 self.cycle_inline_completion(Direction::Prev, cx);
4365 } else {
4366 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4367 if is_copilot_disabled {
4368 cx.propagate();
4369 }
4370 }
4371 }
4372
4373 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4374 if let Some(completion) = self.take_active_inline_completion(cx) {
4375 if let Some(provider) = self.inline_completion_provider() {
4376 provider.accept(cx);
4377 }
4378
4379 cx.emit(EditorEvent::InputHandled {
4380 utf16_range_to_replace: None,
4381 text: completion.text.to_string().into(),
4382 });
4383 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4384 self.refresh_inline_completion(true, cx);
4385 cx.notify();
4386 true
4387 } else {
4388 false
4389 }
4390 }
4391
4392 pub fn accept_partial_inline_completion(
4393 &mut self,
4394 _: &AcceptPartialInlineCompletion,
4395 cx: &mut ViewContext<Self>,
4396 ) {
4397 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4398 if let Some(completion) = self.take_active_inline_completion(cx) {
4399 let mut partial_completion = completion
4400 .text
4401 .chars()
4402 .by_ref()
4403 .take_while(|c| c.is_alphabetic())
4404 .collect::<String>();
4405 if partial_completion.is_empty() {
4406 partial_completion = completion
4407 .text
4408 .chars()
4409 .by_ref()
4410 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4411 .collect::<String>();
4412 }
4413
4414 cx.emit(EditorEvent::InputHandled {
4415 utf16_range_to_replace: None,
4416 text: partial_completion.clone().into(),
4417 });
4418 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4419 self.refresh_inline_completion(true, cx);
4420 cx.notify();
4421 }
4422 }
4423 }
4424
4425 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4426 if let Some(provider) = self.inline_completion_provider() {
4427 provider.discard(cx);
4428 }
4429
4430 self.take_active_inline_completion(cx).is_some()
4431 }
4432
4433 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4434 if let Some(completion) = self.active_inline_completion.as_ref() {
4435 let buffer = self.buffer.read(cx).read(cx);
4436 completion.position.is_valid(&buffer)
4437 } else {
4438 false
4439 }
4440 }
4441
4442 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4443 let completion = self.active_inline_completion.take()?;
4444 self.display_map.update(cx, |map, cx| {
4445 map.splice_inlays(vec![completion.id], Default::default(), cx);
4446 });
4447 let buffer = self.buffer.read(cx).read(cx);
4448
4449 if completion.position.is_valid(&buffer) {
4450 Some(completion)
4451 } else {
4452 None
4453 }
4454 }
4455
4456 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4457 let selection = self.selections.newest_anchor();
4458 let cursor = selection.head();
4459
4460 if self.context_menu.read().is_none()
4461 && self.completion_tasks.is_empty()
4462 && selection.start == selection.end
4463 {
4464 if let Some(provider) = self.inline_completion_provider() {
4465 if let Some((buffer, cursor_buffer_position)) =
4466 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4467 {
4468 if let Some(text) =
4469 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4470 {
4471 let text = Rope::from(text);
4472 let mut to_remove = Vec::new();
4473 if let Some(completion) = self.active_inline_completion.take() {
4474 to_remove.push(completion.id);
4475 }
4476
4477 let completion_inlay =
4478 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4479 self.active_inline_completion = Some(completion_inlay.clone());
4480 self.display_map.update(cx, move |map, cx| {
4481 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4482 });
4483 cx.notify();
4484 return;
4485 }
4486 }
4487 }
4488 }
4489
4490 self.discard_inline_completion(cx);
4491 }
4492
4493 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4494 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4495 }
4496
4497 fn render_code_actions_indicator(
4498 &self,
4499 _style: &EditorStyle,
4500 row: DisplayRow,
4501 is_active: bool,
4502 cx: &mut ViewContext<Self>,
4503 ) -> Option<IconButton> {
4504 if self.available_code_actions.is_some() {
4505 Some(
4506 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4507 .icon_size(IconSize::XSmall)
4508 .size(ui::ButtonSize::None)
4509 .icon_color(Color::Muted)
4510 .selected(is_active)
4511 .on_click(cx.listener(move |editor, _e, cx| {
4512 editor.focus(cx);
4513 editor.toggle_code_actions(
4514 &ToggleCodeActions {
4515 deployed_from_indicator: Some(row),
4516 },
4517 cx,
4518 );
4519 })),
4520 )
4521 } else {
4522 None
4523 }
4524 }
4525
4526 fn clear_tasks(&mut self) {
4527 self.tasks.clear()
4528 }
4529
4530 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: (usize, RunnableTasks)) {
4531 if let Some(_) = self.tasks.insert(key, value) {
4532 // This case should hopefully be rare, but just in case...
4533 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4534 }
4535 }
4536
4537 fn render_run_indicator(
4538 &self,
4539 _style: &EditorStyle,
4540 is_active: bool,
4541 row: DisplayRow,
4542 cx: &mut ViewContext<Self>,
4543 ) -> IconButton {
4544 IconButton::new("run_indicator", ui::IconName::Play)
4545 .icon_size(IconSize::XSmall)
4546 .size(ui::ButtonSize::None)
4547 .icon_color(Color::Muted)
4548 .selected(is_active)
4549 .on_click(cx.listener(move |editor, _e, cx| {
4550 editor.focus(cx);
4551 editor.toggle_code_actions(
4552 &ToggleCodeActions {
4553 deployed_from_indicator: Some(row),
4554 },
4555 cx,
4556 );
4557 }))
4558 }
4559
4560 pub fn render_fold_indicators(
4561 &mut self,
4562 fold_data: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
4563 _style: &EditorStyle,
4564 gutter_hovered: bool,
4565 _line_height: Pixels,
4566 _gutter_margin: Pixels,
4567 cx: &mut ViewContext<Self>,
4568 ) -> Vec<Option<AnyElement>> {
4569 fold_data
4570 .iter()
4571 .enumerate()
4572 .map(|(ix, fold_data)| {
4573 fold_data
4574 .map(|(fold_status, buffer_row, active)| {
4575 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4576 IconButton::new(ix, ui::IconName::ChevronDown)
4577 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4578 FoldStatus::Folded => {
4579 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4580 }
4581 FoldStatus::Foldable => {
4582 this.fold_at(&FoldAt { buffer_row }, cx);
4583 }
4584 }))
4585 .icon_color(ui::Color::Muted)
4586 .icon_size(ui::IconSize::Small)
4587 .selected(fold_status == FoldStatus::Folded)
4588 .selected_icon(ui::IconName::ChevronRight)
4589 .size(ui::ButtonSize::None)
4590 .into_any_element()
4591 })
4592 })
4593 .flatten()
4594 })
4595 .collect()
4596 }
4597
4598 pub fn context_menu_visible(&self) -> bool {
4599 self.context_menu
4600 .read()
4601 .as_ref()
4602 .map_or(false, |menu| menu.visible())
4603 }
4604
4605 fn render_context_menu(
4606 &self,
4607 cursor_position: DisplayPoint,
4608 style: &EditorStyle,
4609 max_height: Pixels,
4610 cx: &mut ViewContext<Editor>,
4611 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4612 self.context_menu.read().as_ref().map(|menu| {
4613 menu.render(
4614 cursor_position,
4615 style,
4616 max_height,
4617 self.workspace.as_ref().map(|(w, _)| w.clone()),
4618 cx,
4619 )
4620 })
4621 }
4622
4623 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4624 cx.notify();
4625 self.completion_tasks.clear();
4626 let context_menu = self.context_menu.write().take();
4627 if context_menu.is_some() {
4628 self.update_visible_inline_completion(cx);
4629 }
4630 context_menu
4631 }
4632
4633 pub fn insert_snippet(
4634 &mut self,
4635 insertion_ranges: &[Range<usize>],
4636 snippet: Snippet,
4637 cx: &mut ViewContext<Self>,
4638 ) -> Result<()> {
4639 struct Tabstop<T> {
4640 is_end_tabstop: bool,
4641 ranges: Vec<Range<T>>,
4642 }
4643
4644 let tabstops = self.buffer.update(cx, |buffer, cx| {
4645 let snippet_text: Arc<str> = snippet.text.clone().into();
4646 buffer.edit(
4647 insertion_ranges
4648 .iter()
4649 .cloned()
4650 .map(|range| (range, snippet_text.clone())),
4651 Some(AutoindentMode::EachLine),
4652 cx,
4653 );
4654
4655 let snapshot = &*buffer.read(cx);
4656 let snippet = &snippet;
4657 snippet
4658 .tabstops
4659 .iter()
4660 .map(|tabstop| {
4661 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4662 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4663 });
4664 let mut tabstop_ranges = tabstop
4665 .iter()
4666 .flat_map(|tabstop_range| {
4667 let mut delta = 0_isize;
4668 insertion_ranges.iter().map(move |insertion_range| {
4669 let insertion_start = insertion_range.start as isize + delta;
4670 delta +=
4671 snippet.text.len() as isize - insertion_range.len() as isize;
4672
4673 let start = ((insertion_start + tabstop_range.start) as usize)
4674 .min(snapshot.len());
4675 let end = ((insertion_start + tabstop_range.end) as usize)
4676 .min(snapshot.len());
4677 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4678 })
4679 })
4680 .collect::<Vec<_>>();
4681 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4682
4683 Tabstop {
4684 is_end_tabstop,
4685 ranges: tabstop_ranges,
4686 }
4687 })
4688 .collect::<Vec<_>>()
4689 });
4690
4691 if let Some(tabstop) = tabstops.first() {
4692 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4693 s.select_ranges(tabstop.ranges.iter().cloned());
4694 });
4695
4696 // If we're already at the last tabstop and it's at the end of the snippet,
4697 // we're done, we don't need to keep the state around.
4698 if !tabstop.is_end_tabstop {
4699 let ranges = tabstops
4700 .into_iter()
4701 .map(|tabstop| tabstop.ranges)
4702 .collect::<Vec<_>>();
4703 self.snippet_stack.push(SnippetState {
4704 active_index: 0,
4705 ranges,
4706 });
4707 }
4708
4709 // Check whether the just-entered snippet ends with an auto-closable bracket.
4710 if self.autoclose_regions.is_empty() {
4711 let snapshot = self.buffer.read(cx).snapshot(cx);
4712 for selection in &mut self.selections.all::<Point>(cx) {
4713 let selection_head = selection.head();
4714 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4715 continue;
4716 };
4717
4718 let mut bracket_pair = None;
4719 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4720 let prev_chars = snapshot
4721 .reversed_chars_at(selection_head)
4722 .collect::<String>();
4723 for (pair, enabled) in scope.brackets() {
4724 if enabled
4725 && pair.close
4726 && prev_chars.starts_with(pair.start.as_str())
4727 && next_chars.starts_with(pair.end.as_str())
4728 {
4729 bracket_pair = Some(pair.clone());
4730 break;
4731 }
4732 }
4733 if let Some(pair) = bracket_pair {
4734 let start = snapshot.anchor_after(selection_head);
4735 let end = snapshot.anchor_after(selection_head);
4736 self.autoclose_regions.push(AutocloseRegion {
4737 selection_id: selection.id,
4738 range: start..end,
4739 pair,
4740 });
4741 }
4742 }
4743 }
4744 }
4745 Ok(())
4746 }
4747
4748 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4749 self.move_to_snippet_tabstop(Bias::Right, cx)
4750 }
4751
4752 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4753 self.move_to_snippet_tabstop(Bias::Left, cx)
4754 }
4755
4756 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4757 if let Some(mut snippet) = self.snippet_stack.pop() {
4758 match bias {
4759 Bias::Left => {
4760 if snippet.active_index > 0 {
4761 snippet.active_index -= 1;
4762 } else {
4763 self.snippet_stack.push(snippet);
4764 return false;
4765 }
4766 }
4767 Bias::Right => {
4768 if snippet.active_index + 1 < snippet.ranges.len() {
4769 snippet.active_index += 1;
4770 } else {
4771 self.snippet_stack.push(snippet);
4772 return false;
4773 }
4774 }
4775 }
4776 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4777 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4778 s.select_anchor_ranges(current_ranges.iter().cloned())
4779 });
4780 // If snippet state is not at the last tabstop, push it back on the stack
4781 if snippet.active_index + 1 < snippet.ranges.len() {
4782 self.snippet_stack.push(snippet);
4783 }
4784 return true;
4785 }
4786 }
4787
4788 false
4789 }
4790
4791 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4792 self.transact(cx, |this, cx| {
4793 this.select_all(&SelectAll, cx);
4794 this.insert("", cx);
4795 });
4796 }
4797
4798 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4799 self.transact(cx, |this, cx| {
4800 this.select_autoclose_pair(cx);
4801 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4802 if !this.selections.line_mode {
4803 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4804 for selection in &mut selections {
4805 if selection.is_empty() {
4806 let old_head = selection.head();
4807 let mut new_head =
4808 movement::left(&display_map, old_head.to_display_point(&display_map))
4809 .to_point(&display_map);
4810 if let Some((buffer, line_buffer_range)) = display_map
4811 .buffer_snapshot
4812 .buffer_line_for_row(MultiBufferRow(old_head.row))
4813 {
4814 let indent_size =
4815 buffer.indent_size_for_line(line_buffer_range.start.row);
4816 let indent_len = match indent_size.kind {
4817 IndentKind::Space => {
4818 buffer.settings_at(line_buffer_range.start, cx).tab_size
4819 }
4820 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4821 };
4822 if old_head.column <= indent_size.len && old_head.column > 0 {
4823 let indent_len = indent_len.get();
4824 new_head = cmp::min(
4825 new_head,
4826 MultiBufferPoint::new(
4827 old_head.row,
4828 ((old_head.column - 1) / indent_len) * indent_len,
4829 ),
4830 );
4831 }
4832 }
4833
4834 selection.set_head(new_head, SelectionGoal::None);
4835 }
4836 }
4837 }
4838
4839 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4840 this.insert("", cx);
4841 this.refresh_inline_completion(true, cx);
4842 });
4843 }
4844
4845 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4846 self.transact(cx, |this, cx| {
4847 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4848 let line_mode = s.line_mode;
4849 s.move_with(|map, selection| {
4850 if selection.is_empty() && !line_mode {
4851 let cursor = movement::right(map, selection.head());
4852 selection.end = cursor;
4853 selection.reversed = true;
4854 selection.goal = SelectionGoal::None;
4855 }
4856 })
4857 });
4858 this.insert("", cx);
4859 this.refresh_inline_completion(true, cx);
4860 });
4861 }
4862
4863 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4864 if self.move_to_prev_snippet_tabstop(cx) {
4865 return;
4866 }
4867
4868 self.outdent(&Outdent, cx);
4869 }
4870
4871 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4872 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4873 return;
4874 }
4875
4876 let mut selections = self.selections.all_adjusted(cx);
4877 let buffer = self.buffer.read(cx);
4878 let snapshot = buffer.snapshot(cx);
4879 let rows_iter = selections.iter().map(|s| s.head().row);
4880 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4881
4882 let mut edits = Vec::new();
4883 let mut prev_edited_row = 0;
4884 let mut row_delta = 0;
4885 for selection in &mut selections {
4886 if selection.start.row != prev_edited_row {
4887 row_delta = 0;
4888 }
4889 prev_edited_row = selection.end.row;
4890
4891 // If the selection is non-empty, then increase the indentation of the selected lines.
4892 if !selection.is_empty() {
4893 row_delta =
4894 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4895 continue;
4896 }
4897
4898 // If the selection is empty and the cursor is in the leading whitespace before the
4899 // suggested indentation, then auto-indent the line.
4900 let cursor = selection.head();
4901 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4902 if let Some(suggested_indent) =
4903 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4904 {
4905 if cursor.column < suggested_indent.len
4906 && cursor.column <= current_indent.len
4907 && current_indent.len <= suggested_indent.len
4908 {
4909 selection.start = Point::new(cursor.row, suggested_indent.len);
4910 selection.end = selection.start;
4911 if row_delta == 0 {
4912 edits.extend(Buffer::edit_for_indent_size_adjustment(
4913 cursor.row,
4914 current_indent,
4915 suggested_indent,
4916 ));
4917 row_delta = suggested_indent.len - current_indent.len;
4918 }
4919 continue;
4920 }
4921 }
4922
4923 // Accept copilot completion if there is only one selection and the cursor is not
4924 // in the leading whitespace.
4925 if self.selections.count() == 1
4926 && cursor.column >= current_indent.len
4927 && self.has_active_inline_completion(cx)
4928 {
4929 self.accept_inline_completion(cx);
4930 return;
4931 }
4932
4933 // Otherwise, insert a hard or soft tab.
4934 let settings = buffer.settings_at(cursor, cx);
4935 let tab_size = if settings.hard_tabs {
4936 IndentSize::tab()
4937 } else {
4938 let tab_size = settings.tab_size.get();
4939 let char_column = snapshot
4940 .text_for_range(Point::new(cursor.row, 0)..cursor)
4941 .flat_map(str::chars)
4942 .count()
4943 + row_delta as usize;
4944 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4945 IndentSize::spaces(chars_to_next_tab_stop)
4946 };
4947 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4948 selection.end = selection.start;
4949 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4950 row_delta += tab_size.len;
4951 }
4952
4953 self.transact(cx, |this, cx| {
4954 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4955 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4956 this.refresh_inline_completion(true, cx);
4957 });
4958 }
4959
4960 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4961 if self.read_only(cx) {
4962 return;
4963 }
4964 let mut selections = self.selections.all::<Point>(cx);
4965 let mut prev_edited_row = 0;
4966 let mut row_delta = 0;
4967 let mut edits = Vec::new();
4968 let buffer = self.buffer.read(cx);
4969 let snapshot = buffer.snapshot(cx);
4970 for selection in &mut selections {
4971 if selection.start.row != prev_edited_row {
4972 row_delta = 0;
4973 }
4974 prev_edited_row = selection.end.row;
4975
4976 row_delta =
4977 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4978 }
4979
4980 self.transact(cx, |this, cx| {
4981 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4982 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4983 });
4984 }
4985
4986 fn indent_selection(
4987 buffer: &MultiBuffer,
4988 snapshot: &MultiBufferSnapshot,
4989 selection: &mut Selection<Point>,
4990 edits: &mut Vec<(Range<Point>, String)>,
4991 delta_for_start_row: u32,
4992 cx: &AppContext,
4993 ) -> u32 {
4994 let settings = buffer.settings_at(selection.start, cx);
4995 let tab_size = settings.tab_size.get();
4996 let indent_kind = if settings.hard_tabs {
4997 IndentKind::Tab
4998 } else {
4999 IndentKind::Space
5000 };
5001 let mut start_row = selection.start.row;
5002 let mut end_row = selection.end.row + 1;
5003
5004 // If a selection ends at the beginning of a line, don't indent
5005 // that last line.
5006 if selection.end.column == 0 && selection.end.row > selection.start.row {
5007 end_row -= 1;
5008 }
5009
5010 // Avoid re-indenting a row that has already been indented by a
5011 // previous selection, but still update this selection's column
5012 // to reflect that indentation.
5013 if delta_for_start_row > 0 {
5014 start_row += 1;
5015 selection.start.column += delta_for_start_row;
5016 if selection.end.row == selection.start.row {
5017 selection.end.column += delta_for_start_row;
5018 }
5019 }
5020
5021 let mut delta_for_end_row = 0;
5022 let has_multiple_rows = start_row + 1 != end_row;
5023 for row in start_row..end_row {
5024 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5025 let indent_delta = match (current_indent.kind, indent_kind) {
5026 (IndentKind::Space, IndentKind::Space) => {
5027 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5028 IndentSize::spaces(columns_to_next_tab_stop)
5029 }
5030 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5031 (_, IndentKind::Tab) => IndentSize::tab(),
5032 };
5033
5034 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5035 0
5036 } else {
5037 selection.start.column
5038 };
5039 let row_start = Point::new(row, start);
5040 edits.push((
5041 row_start..row_start,
5042 indent_delta.chars().collect::<String>(),
5043 ));
5044
5045 // Update this selection's endpoints to reflect the indentation.
5046 if row == selection.start.row {
5047 selection.start.column += indent_delta.len;
5048 }
5049 if row == selection.end.row {
5050 selection.end.column += indent_delta.len;
5051 delta_for_end_row = indent_delta.len;
5052 }
5053 }
5054
5055 if selection.start.row == selection.end.row {
5056 delta_for_start_row + delta_for_end_row
5057 } else {
5058 delta_for_end_row
5059 }
5060 }
5061
5062 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5063 if self.read_only(cx) {
5064 return;
5065 }
5066 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5067 let selections = self.selections.all::<Point>(cx);
5068 let mut deletion_ranges = Vec::new();
5069 let mut last_outdent = None;
5070 {
5071 let buffer = self.buffer.read(cx);
5072 let snapshot = buffer.snapshot(cx);
5073 for selection in &selections {
5074 let settings = buffer.settings_at(selection.start, cx);
5075 let tab_size = settings.tab_size.get();
5076 let mut rows = selection.spanned_rows(false, &display_map);
5077
5078 // Avoid re-outdenting a row that has already been outdented by a
5079 // previous selection.
5080 if let Some(last_row) = last_outdent {
5081 if last_row == rows.start {
5082 rows.start = rows.start.next_row();
5083 }
5084 }
5085 let has_multiple_rows = rows.len() > 1;
5086 for row in rows.iter_rows() {
5087 let indent_size = snapshot.indent_size_for_line(row);
5088 if indent_size.len > 0 {
5089 let deletion_len = match indent_size.kind {
5090 IndentKind::Space => {
5091 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5092 if columns_to_prev_tab_stop == 0 {
5093 tab_size
5094 } else {
5095 columns_to_prev_tab_stop
5096 }
5097 }
5098 IndentKind::Tab => 1,
5099 };
5100 let start = if has_multiple_rows
5101 || deletion_len > selection.start.column
5102 || indent_size.len < selection.start.column
5103 {
5104 0
5105 } else {
5106 selection.start.column - deletion_len
5107 };
5108 deletion_ranges.push(
5109 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5110 );
5111 last_outdent = Some(row);
5112 }
5113 }
5114 }
5115 }
5116
5117 self.transact(cx, |this, cx| {
5118 this.buffer.update(cx, |buffer, cx| {
5119 let empty_str: Arc<str> = "".into();
5120 buffer.edit(
5121 deletion_ranges
5122 .into_iter()
5123 .map(|range| (range, empty_str.clone())),
5124 None,
5125 cx,
5126 );
5127 });
5128 let selections = this.selections.all::<usize>(cx);
5129 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5130 });
5131 }
5132
5133 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5134 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5135 let selections = self.selections.all::<Point>(cx);
5136
5137 let mut new_cursors = Vec::new();
5138 let mut edit_ranges = Vec::new();
5139 let mut selections = selections.iter().peekable();
5140 while let Some(selection) = selections.next() {
5141 let mut rows = selection.spanned_rows(false, &display_map);
5142 let goal_display_column = selection.head().to_display_point(&display_map).column();
5143
5144 // Accumulate contiguous regions of rows that we want to delete.
5145 while let Some(next_selection) = selections.peek() {
5146 let next_rows = next_selection.spanned_rows(false, &display_map);
5147 if next_rows.start <= rows.end {
5148 rows.end = next_rows.end;
5149 selections.next().unwrap();
5150 } else {
5151 break;
5152 }
5153 }
5154
5155 let buffer = &display_map.buffer_snapshot;
5156 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5157 let edit_end;
5158 let cursor_buffer_row;
5159 if buffer.max_point().row >= rows.end.0 {
5160 // If there's a line after the range, delete the \n from the end of the row range
5161 // and position the cursor on the next line.
5162 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5163 cursor_buffer_row = rows.end;
5164 } else {
5165 // If there isn't a line after the range, delete the \n from the line before the
5166 // start of the row range and position the cursor there.
5167 edit_start = edit_start.saturating_sub(1);
5168 edit_end = buffer.len();
5169 cursor_buffer_row = rows.start.previous_row();
5170 }
5171
5172 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5173 *cursor.column_mut() =
5174 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5175
5176 new_cursors.push((
5177 selection.id,
5178 buffer.anchor_after(cursor.to_point(&display_map)),
5179 ));
5180 edit_ranges.push(edit_start..edit_end);
5181 }
5182
5183 self.transact(cx, |this, cx| {
5184 let buffer = this.buffer.update(cx, |buffer, cx| {
5185 let empty_str: Arc<str> = "".into();
5186 buffer.edit(
5187 edit_ranges
5188 .into_iter()
5189 .map(|range| (range, empty_str.clone())),
5190 None,
5191 cx,
5192 );
5193 buffer.snapshot(cx)
5194 });
5195 let new_selections = new_cursors
5196 .into_iter()
5197 .map(|(id, cursor)| {
5198 let cursor = cursor.to_point(&buffer);
5199 Selection {
5200 id,
5201 start: cursor,
5202 end: cursor,
5203 reversed: false,
5204 goal: SelectionGoal::None,
5205 }
5206 })
5207 .collect();
5208
5209 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5210 s.select(new_selections);
5211 });
5212 });
5213 }
5214
5215 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5216 if self.read_only(cx) {
5217 return;
5218 }
5219 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5220 for selection in self.selections.all::<Point>(cx) {
5221 let start = MultiBufferRow(selection.start.row);
5222 let end = if selection.start.row == selection.end.row {
5223 MultiBufferRow(selection.start.row + 1)
5224 } else {
5225 MultiBufferRow(selection.end.row)
5226 };
5227
5228 if let Some(last_row_range) = row_ranges.last_mut() {
5229 if start <= last_row_range.end {
5230 last_row_range.end = end;
5231 continue;
5232 }
5233 }
5234 row_ranges.push(start..end);
5235 }
5236
5237 let snapshot = self.buffer.read(cx).snapshot(cx);
5238 let mut cursor_positions = Vec::new();
5239 for row_range in &row_ranges {
5240 let anchor = snapshot.anchor_before(Point::new(
5241 row_range.end.previous_row().0,
5242 snapshot.line_len(row_range.end.previous_row()),
5243 ));
5244 cursor_positions.push(anchor..anchor);
5245 }
5246
5247 self.transact(cx, |this, cx| {
5248 for row_range in row_ranges.into_iter().rev() {
5249 for row in row_range.iter_rows().rev() {
5250 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5251 let next_line_row = row.next_row();
5252 let indent = snapshot.indent_size_for_line(next_line_row);
5253 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5254
5255 let replace = if snapshot.line_len(next_line_row) > indent.len {
5256 " "
5257 } else {
5258 ""
5259 };
5260
5261 this.buffer.update(cx, |buffer, cx| {
5262 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5263 });
5264 }
5265 }
5266
5267 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5268 s.select_anchor_ranges(cursor_positions)
5269 });
5270 });
5271 }
5272
5273 pub fn sort_lines_case_sensitive(
5274 &mut self,
5275 _: &SortLinesCaseSensitive,
5276 cx: &mut ViewContext<Self>,
5277 ) {
5278 self.manipulate_lines(cx, |lines| lines.sort())
5279 }
5280
5281 pub fn sort_lines_case_insensitive(
5282 &mut self,
5283 _: &SortLinesCaseInsensitive,
5284 cx: &mut ViewContext<Self>,
5285 ) {
5286 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5287 }
5288
5289 pub fn unique_lines_case_insensitive(
5290 &mut self,
5291 _: &UniqueLinesCaseInsensitive,
5292 cx: &mut ViewContext<Self>,
5293 ) {
5294 self.manipulate_lines(cx, |lines| {
5295 let mut seen = HashSet::default();
5296 lines.retain(|line| seen.insert(line.to_lowercase()));
5297 })
5298 }
5299
5300 pub fn unique_lines_case_sensitive(
5301 &mut self,
5302 _: &UniqueLinesCaseSensitive,
5303 cx: &mut ViewContext<Self>,
5304 ) {
5305 self.manipulate_lines(cx, |lines| {
5306 let mut seen = HashSet::default();
5307 lines.retain(|line| seen.insert(*line));
5308 })
5309 }
5310
5311 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5312 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5313 if !revert_changes.is_empty() {
5314 self.transact(cx, |editor, cx| {
5315 editor.buffer().update(cx, |multi_buffer, cx| {
5316 for (buffer_id, changes) in revert_changes {
5317 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5318 buffer.update(cx, |buffer, cx| {
5319 buffer.edit(
5320 changes.into_iter().map(|(range, text)| {
5321 (range, text.to_string().map(Arc::<str>::from))
5322 }),
5323 None,
5324 cx,
5325 );
5326 });
5327 }
5328 }
5329 });
5330 editor.change_selections(None, cx, |selections| selections.refresh());
5331 });
5332 }
5333 }
5334
5335 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5336 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5337 let project_path = buffer.read(cx).project_path(cx)?;
5338 let project = self.project.as_ref()?.read(cx);
5339 let entry = project.entry_for_path(&project_path, cx)?;
5340 let abs_path = project.absolute_path(&project_path, cx)?;
5341 let parent = if entry.is_symlink {
5342 abs_path.canonicalize().ok()?
5343 } else {
5344 abs_path
5345 }
5346 .parent()?
5347 .to_path_buf();
5348 Some(parent)
5349 }) {
5350 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5351 }
5352 }
5353
5354 fn gather_revert_changes(
5355 &mut self,
5356 selections: &[Selection<Anchor>],
5357 cx: &mut ViewContext<'_, Editor>,
5358 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5359 let mut revert_changes = HashMap::default();
5360 self.buffer.update(cx, |multi_buffer, cx| {
5361 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5362 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5363 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5364 }
5365 });
5366 revert_changes
5367 }
5368
5369 fn prepare_revert_change(
5370 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5371 multi_buffer: &MultiBuffer,
5372 hunk: &DiffHunk<MultiBufferRow>,
5373 cx: &mut AppContext,
5374 ) -> Option<()> {
5375 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5376 let buffer = buffer.read(cx);
5377 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5378 let buffer_snapshot = buffer.snapshot();
5379 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5380 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5381 probe
5382 .0
5383 .start
5384 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5385 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5386 }) {
5387 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5388 Some(())
5389 } else {
5390 None
5391 }
5392 }
5393
5394 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5395 self.manipulate_lines(cx, |lines| lines.reverse())
5396 }
5397
5398 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5399 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5400 }
5401
5402 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5403 where
5404 Fn: FnMut(&mut Vec<&str>),
5405 {
5406 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5407 let buffer = self.buffer.read(cx).snapshot(cx);
5408
5409 let mut edits = Vec::new();
5410
5411 let selections = self.selections.all::<Point>(cx);
5412 let mut selections = selections.iter().peekable();
5413 let mut contiguous_row_selections = Vec::new();
5414 let mut new_selections = Vec::new();
5415 let mut added_lines = 0;
5416 let mut removed_lines = 0;
5417
5418 while let Some(selection) = selections.next() {
5419 let (start_row, end_row) = consume_contiguous_rows(
5420 &mut contiguous_row_selections,
5421 selection,
5422 &display_map,
5423 &mut selections,
5424 );
5425
5426 let start_point = Point::new(start_row.0, 0);
5427 let end_point = Point::new(
5428 end_row.previous_row().0,
5429 buffer.line_len(end_row.previous_row()),
5430 );
5431 let text = buffer
5432 .text_for_range(start_point..end_point)
5433 .collect::<String>();
5434
5435 let mut lines = text.split('\n').collect_vec();
5436
5437 let lines_before = lines.len();
5438 callback(&mut lines);
5439 let lines_after = lines.len();
5440
5441 edits.push((start_point..end_point, lines.join("\n")));
5442
5443 // Selections must change based on added and removed line count
5444 let start_row =
5445 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5446 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5447 new_selections.push(Selection {
5448 id: selection.id,
5449 start: start_row,
5450 end: end_row,
5451 goal: SelectionGoal::None,
5452 reversed: selection.reversed,
5453 });
5454
5455 if lines_after > lines_before {
5456 added_lines += lines_after - lines_before;
5457 } else if lines_before > lines_after {
5458 removed_lines += lines_before - lines_after;
5459 }
5460 }
5461
5462 self.transact(cx, |this, cx| {
5463 let buffer = this.buffer.update(cx, |buffer, cx| {
5464 buffer.edit(edits, None, cx);
5465 buffer.snapshot(cx)
5466 });
5467
5468 // Recalculate offsets on newly edited buffer
5469 let new_selections = new_selections
5470 .iter()
5471 .map(|s| {
5472 let start_point = Point::new(s.start.0, 0);
5473 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5474 Selection {
5475 id: s.id,
5476 start: buffer.point_to_offset(start_point),
5477 end: buffer.point_to_offset(end_point),
5478 goal: s.goal,
5479 reversed: s.reversed,
5480 }
5481 })
5482 .collect();
5483
5484 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5485 s.select(new_selections);
5486 });
5487
5488 this.request_autoscroll(Autoscroll::fit(), cx);
5489 });
5490 }
5491
5492 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5493 self.manipulate_text(cx, |text| text.to_uppercase())
5494 }
5495
5496 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5497 self.manipulate_text(cx, |text| text.to_lowercase())
5498 }
5499
5500 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5501 self.manipulate_text(cx, |text| {
5502 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5503 // https://github.com/rutrum/convert-case/issues/16
5504 text.split('\n')
5505 .map(|line| line.to_case(Case::Title))
5506 .join("\n")
5507 })
5508 }
5509
5510 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5511 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5512 }
5513
5514 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5515 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5516 }
5517
5518 pub fn convert_to_upper_camel_case(
5519 &mut self,
5520 _: &ConvertToUpperCamelCase,
5521 cx: &mut ViewContext<Self>,
5522 ) {
5523 self.manipulate_text(cx, |text| {
5524 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5525 // https://github.com/rutrum/convert-case/issues/16
5526 text.split('\n')
5527 .map(|line| line.to_case(Case::UpperCamel))
5528 .join("\n")
5529 })
5530 }
5531
5532 pub fn convert_to_lower_camel_case(
5533 &mut self,
5534 _: &ConvertToLowerCamelCase,
5535 cx: &mut ViewContext<Self>,
5536 ) {
5537 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5538 }
5539
5540 pub fn convert_to_opposite_case(
5541 &mut self,
5542 _: &ConvertToOppositeCase,
5543 cx: &mut ViewContext<Self>,
5544 ) {
5545 self.manipulate_text(cx, |text| {
5546 text.chars()
5547 .fold(String::with_capacity(text.len()), |mut t, c| {
5548 if c.is_uppercase() {
5549 t.extend(c.to_lowercase());
5550 } else {
5551 t.extend(c.to_uppercase());
5552 }
5553 t
5554 })
5555 })
5556 }
5557
5558 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5559 where
5560 Fn: FnMut(&str) -> String,
5561 {
5562 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5563 let buffer = self.buffer.read(cx).snapshot(cx);
5564
5565 let mut new_selections = Vec::new();
5566 let mut edits = Vec::new();
5567 let mut selection_adjustment = 0i32;
5568
5569 for selection in self.selections.all::<usize>(cx) {
5570 let selection_is_empty = selection.is_empty();
5571
5572 let (start, end) = if selection_is_empty {
5573 let word_range = movement::surrounding_word(
5574 &display_map,
5575 selection.start.to_display_point(&display_map),
5576 );
5577 let start = word_range.start.to_offset(&display_map, Bias::Left);
5578 let end = word_range.end.to_offset(&display_map, Bias::Left);
5579 (start, end)
5580 } else {
5581 (selection.start, selection.end)
5582 };
5583
5584 let text = buffer.text_for_range(start..end).collect::<String>();
5585 let old_length = text.len() as i32;
5586 let text = callback(&text);
5587
5588 new_selections.push(Selection {
5589 start: (start as i32 - selection_adjustment) as usize,
5590 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5591 goal: SelectionGoal::None,
5592 ..selection
5593 });
5594
5595 selection_adjustment += old_length - text.len() as i32;
5596
5597 edits.push((start..end, text));
5598 }
5599
5600 self.transact(cx, |this, cx| {
5601 this.buffer.update(cx, |buffer, cx| {
5602 buffer.edit(edits, None, cx);
5603 });
5604
5605 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5606 s.select(new_selections);
5607 });
5608
5609 this.request_autoscroll(Autoscroll::fit(), cx);
5610 });
5611 }
5612
5613 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5614 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5615 let buffer = &display_map.buffer_snapshot;
5616 let selections = self.selections.all::<Point>(cx);
5617
5618 let mut edits = Vec::new();
5619 let mut selections_iter = selections.iter().peekable();
5620 while let Some(selection) = selections_iter.next() {
5621 // Avoid duplicating the same lines twice.
5622 let mut rows = selection.spanned_rows(false, &display_map);
5623
5624 while let Some(next_selection) = selections_iter.peek() {
5625 let next_rows = next_selection.spanned_rows(false, &display_map);
5626 if next_rows.start < rows.end {
5627 rows.end = next_rows.end;
5628 selections_iter.next().unwrap();
5629 } else {
5630 break;
5631 }
5632 }
5633
5634 // Copy the text from the selected row region and splice it either at the start
5635 // or end of the region.
5636 let start = Point::new(rows.start.0, 0);
5637 let end = Point::new(
5638 rows.end.previous_row().0,
5639 buffer.line_len(rows.end.previous_row()),
5640 );
5641 let text = buffer
5642 .text_for_range(start..end)
5643 .chain(Some("\n"))
5644 .collect::<String>();
5645 let insert_location = if upwards {
5646 Point::new(rows.end.0, 0)
5647 } else {
5648 start
5649 };
5650 edits.push((insert_location..insert_location, text));
5651 }
5652
5653 self.transact(cx, |this, cx| {
5654 this.buffer.update(cx, |buffer, cx| {
5655 buffer.edit(edits, None, cx);
5656 });
5657
5658 this.request_autoscroll(Autoscroll::fit(), cx);
5659 });
5660 }
5661
5662 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5663 self.duplicate_line(true, cx);
5664 }
5665
5666 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5667 self.duplicate_line(false, cx);
5668 }
5669
5670 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5671 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5672 let buffer = self.buffer.read(cx).snapshot(cx);
5673
5674 let mut edits = Vec::new();
5675 let mut unfold_ranges = Vec::new();
5676 let mut refold_ranges = Vec::new();
5677
5678 let selections = self.selections.all::<Point>(cx);
5679 let mut selections = selections.iter().peekable();
5680 let mut contiguous_row_selections = Vec::new();
5681 let mut new_selections = Vec::new();
5682
5683 while let Some(selection) = selections.next() {
5684 // Find all the selections that span a contiguous row range
5685 let (start_row, end_row) = consume_contiguous_rows(
5686 &mut contiguous_row_selections,
5687 selection,
5688 &display_map,
5689 &mut selections,
5690 );
5691
5692 // Move the text spanned by the row range to be before the line preceding the row range
5693 if start_row.0 > 0 {
5694 let range_to_move = Point::new(
5695 start_row.previous_row().0,
5696 buffer.line_len(start_row.previous_row()),
5697 )
5698 ..Point::new(
5699 end_row.previous_row().0,
5700 buffer.line_len(end_row.previous_row()),
5701 );
5702 let insertion_point = display_map
5703 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5704 .0;
5705
5706 // Don't move lines across excerpts
5707 if buffer
5708 .excerpt_boundaries_in_range((
5709 Bound::Excluded(insertion_point),
5710 Bound::Included(range_to_move.end),
5711 ))
5712 .next()
5713 .is_none()
5714 {
5715 let text = buffer
5716 .text_for_range(range_to_move.clone())
5717 .flat_map(|s| s.chars())
5718 .skip(1)
5719 .chain(['\n'])
5720 .collect::<String>();
5721
5722 edits.push((
5723 buffer.anchor_after(range_to_move.start)
5724 ..buffer.anchor_before(range_to_move.end),
5725 String::new(),
5726 ));
5727 let insertion_anchor = buffer.anchor_after(insertion_point);
5728 edits.push((insertion_anchor..insertion_anchor, text));
5729
5730 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5731
5732 // Move selections up
5733 new_selections.extend(contiguous_row_selections.drain(..).map(
5734 |mut selection| {
5735 selection.start.row -= row_delta;
5736 selection.end.row -= row_delta;
5737 selection
5738 },
5739 ));
5740
5741 // Move folds up
5742 unfold_ranges.push(range_to_move.clone());
5743 for fold in display_map.folds_in_range(
5744 buffer.anchor_before(range_to_move.start)
5745 ..buffer.anchor_after(range_to_move.end),
5746 ) {
5747 let mut start = fold.range.start.to_point(&buffer);
5748 let mut end = fold.range.end.to_point(&buffer);
5749 start.row -= row_delta;
5750 end.row -= row_delta;
5751 refold_ranges.push(start..end);
5752 }
5753 }
5754 }
5755
5756 // If we didn't move line(s), preserve the existing selections
5757 new_selections.append(&mut contiguous_row_selections);
5758 }
5759
5760 self.transact(cx, |this, cx| {
5761 this.unfold_ranges(unfold_ranges, true, true, cx);
5762 this.buffer.update(cx, |buffer, cx| {
5763 for (range, text) in edits {
5764 buffer.edit([(range, text)], None, cx);
5765 }
5766 });
5767 this.fold_ranges(refold_ranges, true, cx);
5768 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5769 s.select(new_selections);
5770 })
5771 });
5772 }
5773
5774 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5775 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5776 let buffer = self.buffer.read(cx).snapshot(cx);
5777
5778 let mut edits = Vec::new();
5779 let mut unfold_ranges = Vec::new();
5780 let mut refold_ranges = Vec::new();
5781
5782 let selections = self.selections.all::<Point>(cx);
5783 let mut selections = selections.iter().peekable();
5784 let mut contiguous_row_selections = Vec::new();
5785 let mut new_selections = Vec::new();
5786
5787 while let Some(selection) = selections.next() {
5788 // Find all the selections that span a contiguous row range
5789 let (start_row, end_row) = consume_contiguous_rows(
5790 &mut contiguous_row_selections,
5791 selection,
5792 &display_map,
5793 &mut selections,
5794 );
5795
5796 // Move the text spanned by the row range to be after the last line of the row range
5797 if end_row.0 <= buffer.max_point().row {
5798 let range_to_move =
5799 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5800 let insertion_point = display_map
5801 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5802 .0;
5803
5804 // Don't move lines across excerpt boundaries
5805 if buffer
5806 .excerpt_boundaries_in_range((
5807 Bound::Excluded(range_to_move.start),
5808 Bound::Included(insertion_point),
5809 ))
5810 .next()
5811 .is_none()
5812 {
5813 let mut text = String::from("\n");
5814 text.extend(buffer.text_for_range(range_to_move.clone()));
5815 text.pop(); // Drop trailing newline
5816 edits.push((
5817 buffer.anchor_after(range_to_move.start)
5818 ..buffer.anchor_before(range_to_move.end),
5819 String::new(),
5820 ));
5821 let insertion_anchor = buffer.anchor_after(insertion_point);
5822 edits.push((insertion_anchor..insertion_anchor, text));
5823
5824 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5825
5826 // Move selections down
5827 new_selections.extend(contiguous_row_selections.drain(..).map(
5828 |mut selection| {
5829 selection.start.row += row_delta;
5830 selection.end.row += row_delta;
5831 selection
5832 },
5833 ));
5834
5835 // Move folds down
5836 unfold_ranges.push(range_to_move.clone());
5837 for fold in display_map.folds_in_range(
5838 buffer.anchor_before(range_to_move.start)
5839 ..buffer.anchor_after(range_to_move.end),
5840 ) {
5841 let mut start = fold.range.start.to_point(&buffer);
5842 let mut end = fold.range.end.to_point(&buffer);
5843 start.row += row_delta;
5844 end.row += row_delta;
5845 refold_ranges.push(start..end);
5846 }
5847 }
5848 }
5849
5850 // If we didn't move line(s), preserve the existing selections
5851 new_selections.append(&mut contiguous_row_selections);
5852 }
5853
5854 self.transact(cx, |this, cx| {
5855 this.unfold_ranges(unfold_ranges, true, true, cx);
5856 this.buffer.update(cx, |buffer, cx| {
5857 for (range, text) in edits {
5858 buffer.edit([(range, text)], None, cx);
5859 }
5860 });
5861 this.fold_ranges(refold_ranges, true, cx);
5862 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5863 });
5864 }
5865
5866 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5867 let text_layout_details = &self.text_layout_details(cx);
5868 self.transact(cx, |this, cx| {
5869 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5870 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5871 let line_mode = s.line_mode;
5872 s.move_with(|display_map, selection| {
5873 if !selection.is_empty() || line_mode {
5874 return;
5875 }
5876
5877 let mut head = selection.head();
5878 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5879 if head.column() == display_map.line_len(head.row()) {
5880 transpose_offset = display_map
5881 .buffer_snapshot
5882 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5883 }
5884
5885 if transpose_offset == 0 {
5886 return;
5887 }
5888
5889 *head.column_mut() += 1;
5890 head = display_map.clip_point(head, Bias::Right);
5891 let goal = SelectionGoal::HorizontalPosition(
5892 display_map
5893 .x_for_display_point(head, &text_layout_details)
5894 .into(),
5895 );
5896 selection.collapse_to(head, goal);
5897
5898 let transpose_start = display_map
5899 .buffer_snapshot
5900 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5901 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5902 let transpose_end = display_map
5903 .buffer_snapshot
5904 .clip_offset(transpose_offset + 1, Bias::Right);
5905 if let Some(ch) =
5906 display_map.buffer_snapshot.chars_at(transpose_start).next()
5907 {
5908 edits.push((transpose_start..transpose_offset, String::new()));
5909 edits.push((transpose_end..transpose_end, ch.to_string()));
5910 }
5911 }
5912 });
5913 edits
5914 });
5915 this.buffer
5916 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5917 let selections = this.selections.all::<usize>(cx);
5918 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5919 s.select(selections);
5920 });
5921 });
5922 }
5923
5924 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5925 let mut text = String::new();
5926 let buffer = self.buffer.read(cx).snapshot(cx);
5927 let mut selections = self.selections.all::<Point>(cx);
5928 let mut clipboard_selections = Vec::with_capacity(selections.len());
5929 {
5930 let max_point = buffer.max_point();
5931 let mut is_first = true;
5932 for selection in &mut selections {
5933 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5934 if is_entire_line {
5935 selection.start = Point::new(selection.start.row, 0);
5936 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5937 selection.goal = SelectionGoal::None;
5938 }
5939 if is_first {
5940 is_first = false;
5941 } else {
5942 text += "\n";
5943 }
5944 let mut len = 0;
5945 for chunk in buffer.text_for_range(selection.start..selection.end) {
5946 text.push_str(chunk);
5947 len += chunk.len();
5948 }
5949 clipboard_selections.push(ClipboardSelection {
5950 len,
5951 is_entire_line,
5952 first_line_indent: buffer
5953 .indent_size_for_line(MultiBufferRow(selection.start.row))
5954 .len,
5955 });
5956 }
5957 }
5958
5959 self.transact(cx, |this, cx| {
5960 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5961 s.select(selections);
5962 });
5963 this.insert("", cx);
5964 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5965 });
5966 }
5967
5968 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5969 let selections = self.selections.all::<Point>(cx);
5970 let buffer = self.buffer.read(cx).read(cx);
5971 let mut text = String::new();
5972
5973 let mut clipboard_selections = Vec::with_capacity(selections.len());
5974 {
5975 let max_point = buffer.max_point();
5976 let mut is_first = true;
5977 for selection in selections.iter() {
5978 let mut start = selection.start;
5979 let mut end = selection.end;
5980 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5981 if is_entire_line {
5982 start = Point::new(start.row, 0);
5983 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5984 }
5985 if is_first {
5986 is_first = false;
5987 } else {
5988 text += "\n";
5989 }
5990 let mut len = 0;
5991 for chunk in buffer.text_for_range(start..end) {
5992 text.push_str(chunk);
5993 len += chunk.len();
5994 }
5995 clipboard_selections.push(ClipboardSelection {
5996 len,
5997 is_entire_line,
5998 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
5999 });
6000 }
6001 }
6002
6003 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6004 }
6005
6006 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6007 if self.read_only(cx) {
6008 return;
6009 }
6010
6011 self.transact(cx, |this, cx| {
6012 if let Some(item) = cx.read_from_clipboard() {
6013 let clipboard_text = Cow::Borrowed(item.text());
6014 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6015 let old_selections = this.selections.all::<usize>(cx);
6016 let all_selections_were_entire_line =
6017 clipboard_selections.iter().all(|s| s.is_entire_line);
6018 let first_selection_indent_column =
6019 clipboard_selections.first().map(|s| s.first_line_indent);
6020 if clipboard_selections.len() != old_selections.len() {
6021 clipboard_selections.drain(..);
6022 }
6023
6024 this.buffer.update(cx, |buffer, cx| {
6025 let snapshot = buffer.read(cx);
6026 let mut start_offset = 0;
6027 let mut edits = Vec::new();
6028 let mut original_indent_columns = Vec::new();
6029 let line_mode = this.selections.line_mode;
6030 for (ix, selection) in old_selections.iter().enumerate() {
6031 let to_insert;
6032 let entire_line;
6033 let original_indent_column;
6034 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6035 let end_offset = start_offset + clipboard_selection.len;
6036 to_insert = &clipboard_text[start_offset..end_offset];
6037 entire_line = clipboard_selection.is_entire_line;
6038 start_offset = end_offset + 1;
6039 original_indent_column =
6040 Some(clipboard_selection.first_line_indent);
6041 } else {
6042 to_insert = clipboard_text.as_str();
6043 entire_line = all_selections_were_entire_line;
6044 original_indent_column = first_selection_indent_column
6045 }
6046
6047 // If the corresponding selection was empty when this slice of the
6048 // clipboard text was written, then the entire line containing the
6049 // selection was copied. If this selection is also currently empty,
6050 // then paste the line before the current line of the buffer.
6051 let range = if selection.is_empty() && !line_mode && entire_line {
6052 let column = selection.start.to_point(&snapshot).column as usize;
6053 let line_start = selection.start - column;
6054 line_start..line_start
6055 } else {
6056 selection.range()
6057 };
6058
6059 edits.push((range, to_insert));
6060 original_indent_columns.extend(original_indent_column);
6061 }
6062 drop(snapshot);
6063
6064 buffer.edit(
6065 edits,
6066 Some(AutoindentMode::Block {
6067 original_indent_columns,
6068 }),
6069 cx,
6070 );
6071 });
6072
6073 let selections = this.selections.all::<usize>(cx);
6074 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6075 } else {
6076 this.insert(&clipboard_text, cx);
6077 }
6078 }
6079 });
6080 }
6081
6082 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6083 if self.read_only(cx) {
6084 return;
6085 }
6086
6087 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6088 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6089 self.change_selections(None, cx, |s| {
6090 s.select_anchors(selections.to_vec());
6091 });
6092 }
6093 self.request_autoscroll(Autoscroll::fit(), cx);
6094 self.unmark_text(cx);
6095 self.refresh_inline_completion(true, cx);
6096 cx.emit(EditorEvent::Edited);
6097 cx.emit(EditorEvent::TransactionUndone {
6098 transaction_id: tx_id,
6099 });
6100 }
6101 }
6102
6103 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6104 if self.read_only(cx) {
6105 return;
6106 }
6107
6108 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6109 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6110 {
6111 self.change_selections(None, cx, |s| {
6112 s.select_anchors(selections.to_vec());
6113 });
6114 }
6115 self.request_autoscroll(Autoscroll::fit(), cx);
6116 self.unmark_text(cx);
6117 self.refresh_inline_completion(true, cx);
6118 cx.emit(EditorEvent::Edited);
6119 }
6120 }
6121
6122 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6123 self.buffer
6124 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6125 }
6126
6127 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6128 self.buffer
6129 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6130 }
6131
6132 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6134 let line_mode = s.line_mode;
6135 s.move_with(|map, selection| {
6136 let cursor = if selection.is_empty() && !line_mode {
6137 movement::left(map, selection.start)
6138 } else {
6139 selection.start
6140 };
6141 selection.collapse_to(cursor, SelectionGoal::None);
6142 });
6143 })
6144 }
6145
6146 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6147 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6148 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6149 })
6150 }
6151
6152 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6153 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6154 let line_mode = s.line_mode;
6155 s.move_with(|map, selection| {
6156 let cursor = if selection.is_empty() && !line_mode {
6157 movement::right(map, selection.end)
6158 } else {
6159 selection.end
6160 };
6161 selection.collapse_to(cursor, SelectionGoal::None)
6162 });
6163 })
6164 }
6165
6166 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6167 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6168 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6169 })
6170 }
6171
6172 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6173 if self.take_rename(true, cx).is_some() {
6174 return;
6175 }
6176
6177 if matches!(self.mode, EditorMode::SingleLine) {
6178 cx.propagate();
6179 return;
6180 }
6181
6182 let text_layout_details = &self.text_layout_details(cx);
6183
6184 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6185 let line_mode = s.line_mode;
6186 s.move_with(|map, selection| {
6187 if !selection.is_empty() && !line_mode {
6188 selection.goal = SelectionGoal::None;
6189 }
6190 let (cursor, goal) = movement::up(
6191 map,
6192 selection.start,
6193 selection.goal,
6194 false,
6195 &text_layout_details,
6196 );
6197 selection.collapse_to(cursor, goal);
6198 });
6199 })
6200 }
6201
6202 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6203 if self.take_rename(true, cx).is_some() {
6204 return;
6205 }
6206
6207 if matches!(self.mode, EditorMode::SingleLine) {
6208 cx.propagate();
6209 return;
6210 }
6211
6212 let text_layout_details = &self.text_layout_details(cx);
6213
6214 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6215 let line_mode = s.line_mode;
6216 s.move_with(|map, selection| {
6217 if !selection.is_empty() && !line_mode {
6218 selection.goal = SelectionGoal::None;
6219 }
6220 let (cursor, goal) = movement::up_by_rows(
6221 map,
6222 selection.start,
6223 action.lines,
6224 selection.goal,
6225 false,
6226 &text_layout_details,
6227 );
6228 selection.collapse_to(cursor, goal);
6229 });
6230 })
6231 }
6232
6233 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6234 if self.take_rename(true, cx).is_some() {
6235 return;
6236 }
6237
6238 if matches!(self.mode, EditorMode::SingleLine) {
6239 cx.propagate();
6240 return;
6241 }
6242
6243 let text_layout_details = &self.text_layout_details(cx);
6244
6245 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6246 let line_mode = s.line_mode;
6247 s.move_with(|map, selection| {
6248 if !selection.is_empty() && !line_mode {
6249 selection.goal = SelectionGoal::None;
6250 }
6251 let (cursor, goal) = movement::down_by_rows(
6252 map,
6253 selection.start,
6254 action.lines,
6255 selection.goal,
6256 false,
6257 &text_layout_details,
6258 );
6259 selection.collapse_to(cursor, goal);
6260 });
6261 })
6262 }
6263
6264 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6265 let text_layout_details = &self.text_layout_details(cx);
6266 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6267 s.move_heads_with(|map, head, goal| {
6268 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6269 })
6270 })
6271 }
6272
6273 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6274 let text_layout_details = &self.text_layout_details(cx);
6275 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6276 s.move_heads_with(|map, head, goal| {
6277 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6278 })
6279 })
6280 }
6281
6282 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6283 if self.take_rename(true, cx).is_some() {
6284 return;
6285 }
6286
6287 if matches!(self.mode, EditorMode::SingleLine) {
6288 cx.propagate();
6289 return;
6290 }
6291
6292 let row_count = if let Some(row_count) = self.visible_line_count() {
6293 row_count as u32 - 1
6294 } else {
6295 return;
6296 };
6297
6298 let autoscroll = if action.center_cursor {
6299 Autoscroll::center()
6300 } else {
6301 Autoscroll::fit()
6302 };
6303
6304 let text_layout_details = &self.text_layout_details(cx);
6305
6306 self.change_selections(Some(autoscroll), cx, |s| {
6307 let line_mode = s.line_mode;
6308 s.move_with(|map, selection| {
6309 if !selection.is_empty() && !line_mode {
6310 selection.goal = SelectionGoal::None;
6311 }
6312 let (cursor, goal) = movement::up_by_rows(
6313 map,
6314 selection.end,
6315 row_count,
6316 selection.goal,
6317 false,
6318 &text_layout_details,
6319 );
6320 selection.collapse_to(cursor, goal);
6321 });
6322 });
6323 }
6324
6325 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6326 let text_layout_details = &self.text_layout_details(cx);
6327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6328 s.move_heads_with(|map, head, goal| {
6329 movement::up(map, head, goal, false, &text_layout_details)
6330 })
6331 })
6332 }
6333
6334 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6335 self.take_rename(true, cx);
6336
6337 if self.mode == EditorMode::SingleLine {
6338 cx.propagate();
6339 return;
6340 }
6341
6342 let text_layout_details = &self.text_layout_details(cx);
6343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6344 let line_mode = s.line_mode;
6345 s.move_with(|map, selection| {
6346 if !selection.is_empty() && !line_mode {
6347 selection.goal = SelectionGoal::None;
6348 }
6349 let (cursor, goal) = movement::down(
6350 map,
6351 selection.end,
6352 selection.goal,
6353 false,
6354 &text_layout_details,
6355 );
6356 selection.collapse_to(cursor, goal);
6357 });
6358 });
6359 }
6360
6361 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6362 if self.take_rename(true, cx).is_some() {
6363 return;
6364 }
6365
6366 if self
6367 .context_menu
6368 .write()
6369 .as_mut()
6370 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6371 .unwrap_or(false)
6372 {
6373 return;
6374 }
6375
6376 if matches!(self.mode, EditorMode::SingleLine) {
6377 cx.propagate();
6378 return;
6379 }
6380
6381 let row_count = if let Some(row_count) = self.visible_line_count() {
6382 row_count as u32 - 1
6383 } else {
6384 return;
6385 };
6386
6387 let autoscroll = if action.center_cursor {
6388 Autoscroll::center()
6389 } else {
6390 Autoscroll::fit()
6391 };
6392
6393 let text_layout_details = &self.text_layout_details(cx);
6394 self.change_selections(Some(autoscroll), cx, |s| {
6395 let line_mode = s.line_mode;
6396 s.move_with(|map, selection| {
6397 if !selection.is_empty() && !line_mode {
6398 selection.goal = SelectionGoal::None;
6399 }
6400 let (cursor, goal) = movement::down_by_rows(
6401 map,
6402 selection.end,
6403 row_count,
6404 selection.goal,
6405 false,
6406 &text_layout_details,
6407 );
6408 selection.collapse_to(cursor, goal);
6409 });
6410 });
6411 }
6412
6413 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6414 let text_layout_details = &self.text_layout_details(cx);
6415 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6416 s.move_heads_with(|map, head, goal| {
6417 movement::down(map, head, goal, false, &text_layout_details)
6418 })
6419 });
6420 }
6421
6422 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6423 if let Some(context_menu) = self.context_menu.write().as_mut() {
6424 context_menu.select_first(self.project.as_ref(), cx);
6425 }
6426 }
6427
6428 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6429 if let Some(context_menu) = self.context_menu.write().as_mut() {
6430 context_menu.select_prev(self.project.as_ref(), cx);
6431 }
6432 }
6433
6434 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6435 if let Some(context_menu) = self.context_menu.write().as_mut() {
6436 context_menu.select_next(self.project.as_ref(), cx);
6437 }
6438 }
6439
6440 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6441 if let Some(context_menu) = self.context_menu.write().as_mut() {
6442 context_menu.select_last(self.project.as_ref(), cx);
6443 }
6444 }
6445
6446 pub fn move_to_previous_word_start(
6447 &mut self,
6448 _: &MoveToPreviousWordStart,
6449 cx: &mut ViewContext<Self>,
6450 ) {
6451 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6452 s.move_cursors_with(|map, head, _| {
6453 (
6454 movement::previous_word_start(map, head),
6455 SelectionGoal::None,
6456 )
6457 });
6458 })
6459 }
6460
6461 pub fn move_to_previous_subword_start(
6462 &mut self,
6463 _: &MoveToPreviousSubwordStart,
6464 cx: &mut ViewContext<Self>,
6465 ) {
6466 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6467 s.move_cursors_with(|map, head, _| {
6468 (
6469 movement::previous_subword_start(map, head),
6470 SelectionGoal::None,
6471 )
6472 });
6473 })
6474 }
6475
6476 pub fn select_to_previous_word_start(
6477 &mut self,
6478 _: &SelectToPreviousWordStart,
6479 cx: &mut ViewContext<Self>,
6480 ) {
6481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6482 s.move_heads_with(|map, head, _| {
6483 (
6484 movement::previous_word_start(map, head),
6485 SelectionGoal::None,
6486 )
6487 });
6488 })
6489 }
6490
6491 pub fn select_to_previous_subword_start(
6492 &mut self,
6493 _: &SelectToPreviousSubwordStart,
6494 cx: &mut ViewContext<Self>,
6495 ) {
6496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6497 s.move_heads_with(|map, head, _| {
6498 (
6499 movement::previous_subword_start(map, head),
6500 SelectionGoal::None,
6501 )
6502 });
6503 })
6504 }
6505
6506 pub fn delete_to_previous_word_start(
6507 &mut self,
6508 _: &DeleteToPreviousWordStart,
6509 cx: &mut ViewContext<Self>,
6510 ) {
6511 self.transact(cx, |this, cx| {
6512 this.select_autoclose_pair(cx);
6513 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6514 let line_mode = s.line_mode;
6515 s.move_with(|map, selection| {
6516 if selection.is_empty() && !line_mode {
6517 let cursor = movement::previous_word_start(map, selection.head());
6518 selection.set_head(cursor, SelectionGoal::None);
6519 }
6520 });
6521 });
6522 this.insert("", cx);
6523 });
6524 }
6525
6526 pub fn delete_to_previous_subword_start(
6527 &mut self,
6528 _: &DeleteToPreviousSubwordStart,
6529 cx: &mut ViewContext<Self>,
6530 ) {
6531 self.transact(cx, |this, cx| {
6532 this.select_autoclose_pair(cx);
6533 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6534 let line_mode = s.line_mode;
6535 s.move_with(|map, selection| {
6536 if selection.is_empty() && !line_mode {
6537 let cursor = movement::previous_subword_start(map, selection.head());
6538 selection.set_head(cursor, SelectionGoal::None);
6539 }
6540 });
6541 });
6542 this.insert("", cx);
6543 });
6544 }
6545
6546 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6548 s.move_cursors_with(|map, head, _| {
6549 (movement::next_word_end(map, head), SelectionGoal::None)
6550 });
6551 })
6552 }
6553
6554 pub fn move_to_next_subword_end(
6555 &mut self,
6556 _: &MoveToNextSubwordEnd,
6557 cx: &mut ViewContext<Self>,
6558 ) {
6559 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6560 s.move_cursors_with(|map, head, _| {
6561 (movement::next_subword_end(map, head), SelectionGoal::None)
6562 });
6563 })
6564 }
6565
6566 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6567 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6568 s.move_heads_with(|map, head, _| {
6569 (movement::next_word_end(map, head), SelectionGoal::None)
6570 });
6571 })
6572 }
6573
6574 pub fn select_to_next_subword_end(
6575 &mut self,
6576 _: &SelectToNextSubwordEnd,
6577 cx: &mut ViewContext<Self>,
6578 ) {
6579 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6580 s.move_heads_with(|map, head, _| {
6581 (movement::next_subword_end(map, head), SelectionGoal::None)
6582 });
6583 })
6584 }
6585
6586 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6587 self.transact(cx, |this, cx| {
6588 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6589 let line_mode = s.line_mode;
6590 s.move_with(|map, selection| {
6591 if selection.is_empty() && !line_mode {
6592 let cursor = movement::next_word_end(map, selection.head());
6593 selection.set_head(cursor, SelectionGoal::None);
6594 }
6595 });
6596 });
6597 this.insert("", cx);
6598 });
6599 }
6600
6601 pub fn delete_to_next_subword_end(
6602 &mut self,
6603 _: &DeleteToNextSubwordEnd,
6604 cx: &mut ViewContext<Self>,
6605 ) {
6606 self.transact(cx, |this, cx| {
6607 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6608 s.move_with(|map, selection| {
6609 if selection.is_empty() {
6610 let cursor = movement::next_subword_end(map, selection.head());
6611 selection.set_head(cursor, SelectionGoal::None);
6612 }
6613 });
6614 });
6615 this.insert("", cx);
6616 });
6617 }
6618
6619 pub fn move_to_beginning_of_line(
6620 &mut self,
6621 action: &MoveToBeginningOfLine,
6622 cx: &mut ViewContext<Self>,
6623 ) {
6624 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6625 s.move_cursors_with(|map, head, _| {
6626 (
6627 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6628 SelectionGoal::None,
6629 )
6630 });
6631 })
6632 }
6633
6634 pub fn select_to_beginning_of_line(
6635 &mut self,
6636 action: &SelectToBeginningOfLine,
6637 cx: &mut ViewContext<Self>,
6638 ) {
6639 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6640 s.move_heads_with(|map, head, _| {
6641 (
6642 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6643 SelectionGoal::None,
6644 )
6645 });
6646 });
6647 }
6648
6649 pub fn delete_to_beginning_of_line(
6650 &mut self,
6651 _: &DeleteToBeginningOfLine,
6652 cx: &mut ViewContext<Self>,
6653 ) {
6654 self.transact(cx, |this, cx| {
6655 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6656 s.move_with(|_, selection| {
6657 selection.reversed = true;
6658 });
6659 });
6660
6661 this.select_to_beginning_of_line(
6662 &SelectToBeginningOfLine {
6663 stop_at_soft_wraps: false,
6664 },
6665 cx,
6666 );
6667 this.backspace(&Backspace, cx);
6668 });
6669 }
6670
6671 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6672 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6673 s.move_cursors_with(|map, head, _| {
6674 (
6675 movement::line_end(map, head, action.stop_at_soft_wraps),
6676 SelectionGoal::None,
6677 )
6678 });
6679 })
6680 }
6681
6682 pub fn select_to_end_of_line(
6683 &mut self,
6684 action: &SelectToEndOfLine,
6685 cx: &mut ViewContext<Self>,
6686 ) {
6687 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6688 s.move_heads_with(|map, head, _| {
6689 (
6690 movement::line_end(map, head, action.stop_at_soft_wraps),
6691 SelectionGoal::None,
6692 )
6693 });
6694 })
6695 }
6696
6697 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6698 self.transact(cx, |this, cx| {
6699 this.select_to_end_of_line(
6700 &SelectToEndOfLine {
6701 stop_at_soft_wraps: false,
6702 },
6703 cx,
6704 );
6705 this.delete(&Delete, cx);
6706 });
6707 }
6708
6709 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6710 self.transact(cx, |this, cx| {
6711 this.select_to_end_of_line(
6712 &SelectToEndOfLine {
6713 stop_at_soft_wraps: false,
6714 },
6715 cx,
6716 );
6717 this.cut(&Cut, cx);
6718 });
6719 }
6720
6721 pub fn move_to_start_of_paragraph(
6722 &mut self,
6723 _: &MoveToStartOfParagraph,
6724 cx: &mut ViewContext<Self>,
6725 ) {
6726 if matches!(self.mode, EditorMode::SingleLine) {
6727 cx.propagate();
6728 return;
6729 }
6730
6731 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6732 s.move_with(|map, selection| {
6733 selection.collapse_to(
6734 movement::start_of_paragraph(map, selection.head(), 1),
6735 SelectionGoal::None,
6736 )
6737 });
6738 })
6739 }
6740
6741 pub fn move_to_end_of_paragraph(
6742 &mut self,
6743 _: &MoveToEndOfParagraph,
6744 cx: &mut ViewContext<Self>,
6745 ) {
6746 if matches!(self.mode, EditorMode::SingleLine) {
6747 cx.propagate();
6748 return;
6749 }
6750
6751 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6752 s.move_with(|map, selection| {
6753 selection.collapse_to(
6754 movement::end_of_paragraph(map, selection.head(), 1),
6755 SelectionGoal::None,
6756 )
6757 });
6758 })
6759 }
6760
6761 pub fn select_to_start_of_paragraph(
6762 &mut self,
6763 _: &SelectToStartOfParagraph,
6764 cx: &mut ViewContext<Self>,
6765 ) {
6766 if matches!(self.mode, EditorMode::SingleLine) {
6767 cx.propagate();
6768 return;
6769 }
6770
6771 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6772 s.move_heads_with(|map, head, _| {
6773 (
6774 movement::start_of_paragraph(map, head, 1),
6775 SelectionGoal::None,
6776 )
6777 });
6778 })
6779 }
6780
6781 pub fn select_to_end_of_paragraph(
6782 &mut self,
6783 _: &SelectToEndOfParagraph,
6784 cx: &mut ViewContext<Self>,
6785 ) {
6786 if matches!(self.mode, EditorMode::SingleLine) {
6787 cx.propagate();
6788 return;
6789 }
6790
6791 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6792 s.move_heads_with(|map, head, _| {
6793 (
6794 movement::end_of_paragraph(map, head, 1),
6795 SelectionGoal::None,
6796 )
6797 });
6798 })
6799 }
6800
6801 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6802 if matches!(self.mode, EditorMode::SingleLine) {
6803 cx.propagate();
6804 return;
6805 }
6806
6807 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6808 s.select_ranges(vec![0..0]);
6809 });
6810 }
6811
6812 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6813 let mut selection = self.selections.last::<Point>(cx);
6814 selection.set_head(Point::zero(), SelectionGoal::None);
6815
6816 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6817 s.select(vec![selection]);
6818 });
6819 }
6820
6821 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6822 if matches!(self.mode, EditorMode::SingleLine) {
6823 cx.propagate();
6824 return;
6825 }
6826
6827 let cursor = self.buffer.read(cx).read(cx).len();
6828 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6829 s.select_ranges(vec![cursor..cursor])
6830 });
6831 }
6832
6833 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6834 self.nav_history = nav_history;
6835 }
6836
6837 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6838 self.nav_history.as_ref()
6839 }
6840
6841 fn push_to_nav_history(
6842 &mut self,
6843 cursor_anchor: Anchor,
6844 new_position: Option<Point>,
6845 cx: &mut ViewContext<Self>,
6846 ) {
6847 if let Some(nav_history) = self.nav_history.as_mut() {
6848 let buffer = self.buffer.read(cx).read(cx);
6849 let cursor_position = cursor_anchor.to_point(&buffer);
6850 let scroll_state = self.scroll_manager.anchor();
6851 let scroll_top_row = scroll_state.top_row(&buffer);
6852 drop(buffer);
6853
6854 if let Some(new_position) = new_position {
6855 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6856 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6857 return;
6858 }
6859 }
6860
6861 nav_history.push(
6862 Some(NavigationData {
6863 cursor_anchor,
6864 cursor_position,
6865 scroll_anchor: scroll_state,
6866 scroll_top_row,
6867 }),
6868 cx,
6869 );
6870 }
6871 }
6872
6873 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6874 let buffer = self.buffer.read(cx).snapshot(cx);
6875 let mut selection = self.selections.first::<usize>(cx);
6876 selection.set_head(buffer.len(), SelectionGoal::None);
6877 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6878 s.select(vec![selection]);
6879 });
6880 }
6881
6882 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6883 let end = self.buffer.read(cx).read(cx).len();
6884 self.change_selections(None, cx, |s| {
6885 s.select_ranges(vec![0..end]);
6886 });
6887 }
6888
6889 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6890 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6891 let mut selections = self.selections.all::<Point>(cx);
6892 let max_point = display_map.buffer_snapshot.max_point();
6893 for selection in &mut selections {
6894 let rows = selection.spanned_rows(true, &display_map);
6895 selection.start = Point::new(rows.start.0, 0);
6896 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
6897 selection.reversed = false;
6898 }
6899 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6900 s.select(selections);
6901 });
6902 }
6903
6904 pub fn split_selection_into_lines(
6905 &mut self,
6906 _: &SplitSelectionIntoLines,
6907 cx: &mut ViewContext<Self>,
6908 ) {
6909 let mut to_unfold = Vec::new();
6910 let mut new_selection_ranges = Vec::new();
6911 {
6912 let selections = self.selections.all::<Point>(cx);
6913 let buffer = self.buffer.read(cx).read(cx);
6914 for selection in selections {
6915 for row in selection.start.row..selection.end.row {
6916 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
6917 new_selection_ranges.push(cursor..cursor);
6918 }
6919 new_selection_ranges.push(selection.end..selection.end);
6920 to_unfold.push(selection.start..selection.end);
6921 }
6922 }
6923 self.unfold_ranges(to_unfold, true, true, cx);
6924 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6925 s.select_ranges(new_selection_ranges);
6926 });
6927 }
6928
6929 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6930 self.add_selection(true, cx);
6931 }
6932
6933 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6934 self.add_selection(false, cx);
6935 }
6936
6937 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6938 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6939 let mut selections = self.selections.all::<Point>(cx);
6940 let text_layout_details = self.text_layout_details(cx);
6941 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6942 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6943 let range = oldest_selection.display_range(&display_map).sorted();
6944
6945 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6946 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6947 let positions = start_x.min(end_x)..start_x.max(end_x);
6948
6949 selections.clear();
6950 let mut stack = Vec::new();
6951 for row in range.start.row().0..=range.end.row().0 {
6952 if let Some(selection) = self.selections.build_columnar_selection(
6953 &display_map,
6954 DisplayRow(row),
6955 &positions,
6956 oldest_selection.reversed,
6957 &text_layout_details,
6958 ) {
6959 stack.push(selection.id);
6960 selections.push(selection);
6961 }
6962 }
6963
6964 if above {
6965 stack.reverse();
6966 }
6967
6968 AddSelectionsState { above, stack }
6969 });
6970
6971 let last_added_selection = *state.stack.last().unwrap();
6972 let mut new_selections = Vec::new();
6973 if above == state.above {
6974 let end_row = if above {
6975 DisplayRow(0)
6976 } else {
6977 display_map.max_point().row()
6978 };
6979
6980 'outer: for selection in selections {
6981 if selection.id == last_added_selection {
6982 let range = selection.display_range(&display_map).sorted();
6983 debug_assert_eq!(range.start.row(), range.end.row());
6984 let mut row = range.start.row();
6985 let positions =
6986 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6987 px(start)..px(end)
6988 } else {
6989 let start_x =
6990 display_map.x_for_display_point(range.start, &text_layout_details);
6991 let end_x =
6992 display_map.x_for_display_point(range.end, &text_layout_details);
6993 start_x.min(end_x)..start_x.max(end_x)
6994 };
6995
6996 while row != end_row {
6997 if above {
6998 row.0 -= 1;
6999 } else {
7000 row.0 += 1;
7001 }
7002
7003 if let Some(new_selection) = self.selections.build_columnar_selection(
7004 &display_map,
7005 row,
7006 &positions,
7007 selection.reversed,
7008 &text_layout_details,
7009 ) {
7010 state.stack.push(new_selection.id);
7011 if above {
7012 new_selections.push(new_selection);
7013 new_selections.push(selection);
7014 } else {
7015 new_selections.push(selection);
7016 new_selections.push(new_selection);
7017 }
7018
7019 continue 'outer;
7020 }
7021 }
7022 }
7023
7024 new_selections.push(selection);
7025 }
7026 } else {
7027 new_selections = selections;
7028 new_selections.retain(|s| s.id != last_added_selection);
7029 state.stack.pop();
7030 }
7031
7032 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7033 s.select(new_selections);
7034 });
7035 if state.stack.len() > 1 {
7036 self.add_selections_state = Some(state);
7037 }
7038 }
7039
7040 pub fn select_next_match_internal(
7041 &mut self,
7042 display_map: &DisplaySnapshot,
7043 replace_newest: bool,
7044 autoscroll: Option<Autoscroll>,
7045 cx: &mut ViewContext<Self>,
7046 ) -> Result<()> {
7047 fn select_next_match_ranges(
7048 this: &mut Editor,
7049 range: Range<usize>,
7050 replace_newest: bool,
7051 auto_scroll: Option<Autoscroll>,
7052 cx: &mut ViewContext<Editor>,
7053 ) {
7054 this.unfold_ranges([range.clone()], false, true, cx);
7055 this.change_selections(auto_scroll, cx, |s| {
7056 if replace_newest {
7057 s.delete(s.newest_anchor().id);
7058 }
7059 s.insert_range(range.clone());
7060 });
7061 }
7062
7063 let buffer = &display_map.buffer_snapshot;
7064 let mut selections = self.selections.all::<usize>(cx);
7065 if let Some(mut select_next_state) = self.select_next_state.take() {
7066 let query = &select_next_state.query;
7067 if !select_next_state.done {
7068 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7069 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7070 let mut next_selected_range = None;
7071
7072 let bytes_after_last_selection =
7073 buffer.bytes_in_range(last_selection.end..buffer.len());
7074 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7075 let query_matches = query
7076 .stream_find_iter(bytes_after_last_selection)
7077 .map(|result| (last_selection.end, result))
7078 .chain(
7079 query
7080 .stream_find_iter(bytes_before_first_selection)
7081 .map(|result| (0, result)),
7082 );
7083
7084 for (start_offset, query_match) in query_matches {
7085 let query_match = query_match.unwrap(); // can only fail due to I/O
7086 let offset_range =
7087 start_offset + query_match.start()..start_offset + query_match.end();
7088 let display_range = offset_range.start.to_display_point(&display_map)
7089 ..offset_range.end.to_display_point(&display_map);
7090
7091 if !select_next_state.wordwise
7092 || (!movement::is_inside_word(&display_map, display_range.start)
7093 && !movement::is_inside_word(&display_map, display_range.end))
7094 {
7095 // TODO: This is n^2, because we might check all the selections
7096 if !selections
7097 .iter()
7098 .any(|selection| selection.range().overlaps(&offset_range))
7099 {
7100 next_selected_range = Some(offset_range);
7101 break;
7102 }
7103 }
7104 }
7105
7106 if let Some(next_selected_range) = next_selected_range {
7107 select_next_match_ranges(
7108 self,
7109 next_selected_range,
7110 replace_newest,
7111 autoscroll,
7112 cx,
7113 );
7114 } else {
7115 select_next_state.done = true;
7116 }
7117 }
7118
7119 self.select_next_state = Some(select_next_state);
7120 } else {
7121 let mut only_carets = true;
7122 let mut same_text_selected = true;
7123 let mut selected_text = None;
7124
7125 let mut selections_iter = selections.iter().peekable();
7126 while let Some(selection) = selections_iter.next() {
7127 if selection.start != selection.end {
7128 only_carets = false;
7129 }
7130
7131 if same_text_selected {
7132 if selected_text.is_none() {
7133 selected_text =
7134 Some(buffer.text_for_range(selection.range()).collect::<String>());
7135 }
7136
7137 if let Some(next_selection) = selections_iter.peek() {
7138 if next_selection.range().len() == selection.range().len() {
7139 let next_selected_text = buffer
7140 .text_for_range(next_selection.range())
7141 .collect::<String>();
7142 if Some(next_selected_text) != selected_text {
7143 same_text_selected = false;
7144 selected_text = None;
7145 }
7146 } else {
7147 same_text_selected = false;
7148 selected_text = None;
7149 }
7150 }
7151 }
7152 }
7153
7154 if only_carets {
7155 for selection in &mut selections {
7156 let word_range = movement::surrounding_word(
7157 &display_map,
7158 selection.start.to_display_point(&display_map),
7159 );
7160 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7161 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7162 selection.goal = SelectionGoal::None;
7163 selection.reversed = false;
7164 select_next_match_ranges(
7165 self,
7166 selection.start..selection.end,
7167 replace_newest,
7168 autoscroll,
7169 cx,
7170 );
7171 }
7172
7173 if selections.len() == 1 {
7174 let selection = selections
7175 .last()
7176 .expect("ensured that there's only one selection");
7177 let query = buffer
7178 .text_for_range(selection.start..selection.end)
7179 .collect::<String>();
7180 let is_empty = query.is_empty();
7181 let select_state = SelectNextState {
7182 query: AhoCorasick::new(&[query])?,
7183 wordwise: true,
7184 done: is_empty,
7185 };
7186 self.select_next_state = Some(select_state);
7187 } else {
7188 self.select_next_state = None;
7189 }
7190 } else if let Some(selected_text) = selected_text {
7191 self.select_next_state = Some(SelectNextState {
7192 query: AhoCorasick::new(&[selected_text])?,
7193 wordwise: false,
7194 done: false,
7195 });
7196 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7197 }
7198 }
7199 Ok(())
7200 }
7201
7202 pub fn select_all_matches(
7203 &mut self,
7204 _action: &SelectAllMatches,
7205 cx: &mut ViewContext<Self>,
7206 ) -> Result<()> {
7207 self.push_to_selection_history();
7208 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7209
7210 self.select_next_match_internal(&display_map, false, None, cx)?;
7211 let Some(select_next_state) = self.select_next_state.as_mut() else {
7212 return Ok(());
7213 };
7214 if select_next_state.done {
7215 return Ok(());
7216 }
7217
7218 let mut new_selections = self.selections.all::<usize>(cx);
7219
7220 let buffer = &display_map.buffer_snapshot;
7221 let query_matches = select_next_state
7222 .query
7223 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7224
7225 for query_match in query_matches {
7226 let query_match = query_match.unwrap(); // can only fail due to I/O
7227 let offset_range = query_match.start()..query_match.end();
7228 let display_range = offset_range.start.to_display_point(&display_map)
7229 ..offset_range.end.to_display_point(&display_map);
7230
7231 if !select_next_state.wordwise
7232 || (!movement::is_inside_word(&display_map, display_range.start)
7233 && !movement::is_inside_word(&display_map, display_range.end))
7234 {
7235 self.selections.change_with(cx, |selections| {
7236 new_selections.push(Selection {
7237 id: selections.new_selection_id(),
7238 start: offset_range.start,
7239 end: offset_range.end,
7240 reversed: false,
7241 goal: SelectionGoal::None,
7242 });
7243 });
7244 }
7245 }
7246
7247 new_selections.sort_by_key(|selection| selection.start);
7248 let mut ix = 0;
7249 while ix + 1 < new_selections.len() {
7250 let current_selection = &new_selections[ix];
7251 let next_selection = &new_selections[ix + 1];
7252 if current_selection.range().overlaps(&next_selection.range()) {
7253 if current_selection.id < next_selection.id {
7254 new_selections.remove(ix + 1);
7255 } else {
7256 new_selections.remove(ix);
7257 }
7258 } else {
7259 ix += 1;
7260 }
7261 }
7262
7263 select_next_state.done = true;
7264 self.unfold_ranges(
7265 new_selections.iter().map(|selection| selection.range()),
7266 false,
7267 false,
7268 cx,
7269 );
7270 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7271 selections.select(new_selections)
7272 });
7273
7274 Ok(())
7275 }
7276
7277 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7278 self.push_to_selection_history();
7279 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7280 self.select_next_match_internal(
7281 &display_map,
7282 action.replace_newest,
7283 Some(Autoscroll::newest()),
7284 cx,
7285 )?;
7286 Ok(())
7287 }
7288
7289 pub fn select_previous(
7290 &mut self,
7291 action: &SelectPrevious,
7292 cx: &mut ViewContext<Self>,
7293 ) -> Result<()> {
7294 self.push_to_selection_history();
7295 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7296 let buffer = &display_map.buffer_snapshot;
7297 let mut selections = self.selections.all::<usize>(cx);
7298 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7299 let query = &select_prev_state.query;
7300 if !select_prev_state.done {
7301 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7302 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7303 let mut next_selected_range = None;
7304 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7305 let bytes_before_last_selection =
7306 buffer.reversed_bytes_in_range(0..last_selection.start);
7307 let bytes_after_first_selection =
7308 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7309 let query_matches = query
7310 .stream_find_iter(bytes_before_last_selection)
7311 .map(|result| (last_selection.start, result))
7312 .chain(
7313 query
7314 .stream_find_iter(bytes_after_first_selection)
7315 .map(|result| (buffer.len(), result)),
7316 );
7317 for (end_offset, query_match) in query_matches {
7318 let query_match = query_match.unwrap(); // can only fail due to I/O
7319 let offset_range =
7320 end_offset - query_match.end()..end_offset - query_match.start();
7321 let display_range = offset_range.start.to_display_point(&display_map)
7322 ..offset_range.end.to_display_point(&display_map);
7323
7324 if !select_prev_state.wordwise
7325 || (!movement::is_inside_word(&display_map, display_range.start)
7326 && !movement::is_inside_word(&display_map, display_range.end))
7327 {
7328 next_selected_range = Some(offset_range);
7329 break;
7330 }
7331 }
7332
7333 if let Some(next_selected_range) = next_selected_range {
7334 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7335 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7336 if action.replace_newest {
7337 s.delete(s.newest_anchor().id);
7338 }
7339 s.insert_range(next_selected_range);
7340 });
7341 } else {
7342 select_prev_state.done = true;
7343 }
7344 }
7345
7346 self.select_prev_state = Some(select_prev_state);
7347 } else {
7348 let mut only_carets = true;
7349 let mut same_text_selected = true;
7350 let mut selected_text = None;
7351
7352 let mut selections_iter = selections.iter().peekable();
7353 while let Some(selection) = selections_iter.next() {
7354 if selection.start != selection.end {
7355 only_carets = false;
7356 }
7357
7358 if same_text_selected {
7359 if selected_text.is_none() {
7360 selected_text =
7361 Some(buffer.text_for_range(selection.range()).collect::<String>());
7362 }
7363
7364 if let Some(next_selection) = selections_iter.peek() {
7365 if next_selection.range().len() == selection.range().len() {
7366 let next_selected_text = buffer
7367 .text_for_range(next_selection.range())
7368 .collect::<String>();
7369 if Some(next_selected_text) != selected_text {
7370 same_text_selected = false;
7371 selected_text = None;
7372 }
7373 } else {
7374 same_text_selected = false;
7375 selected_text = None;
7376 }
7377 }
7378 }
7379 }
7380
7381 if only_carets {
7382 for selection in &mut selections {
7383 let word_range = movement::surrounding_word(
7384 &display_map,
7385 selection.start.to_display_point(&display_map),
7386 );
7387 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7388 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7389 selection.goal = SelectionGoal::None;
7390 selection.reversed = false;
7391 }
7392 if selections.len() == 1 {
7393 let selection = selections
7394 .last()
7395 .expect("ensured that there's only one selection");
7396 let query = buffer
7397 .text_for_range(selection.start..selection.end)
7398 .collect::<String>();
7399 let is_empty = query.is_empty();
7400 let select_state = SelectNextState {
7401 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7402 wordwise: true,
7403 done: is_empty,
7404 };
7405 self.select_prev_state = Some(select_state);
7406 } else {
7407 self.select_prev_state = None;
7408 }
7409
7410 self.unfold_ranges(
7411 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7412 false,
7413 true,
7414 cx,
7415 );
7416 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7417 s.select(selections);
7418 });
7419 } else if let Some(selected_text) = selected_text {
7420 self.select_prev_state = Some(SelectNextState {
7421 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7422 wordwise: false,
7423 done: false,
7424 });
7425 self.select_previous(action, cx)?;
7426 }
7427 }
7428 Ok(())
7429 }
7430
7431 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7432 let text_layout_details = &self.text_layout_details(cx);
7433 self.transact(cx, |this, cx| {
7434 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7435 let mut edits = Vec::new();
7436 let mut selection_edit_ranges = Vec::new();
7437 let mut last_toggled_row = None;
7438 let snapshot = this.buffer.read(cx).read(cx);
7439 let empty_str: Arc<str> = "".into();
7440 let mut suffixes_inserted = Vec::new();
7441
7442 fn comment_prefix_range(
7443 snapshot: &MultiBufferSnapshot,
7444 row: MultiBufferRow,
7445 comment_prefix: &str,
7446 comment_prefix_whitespace: &str,
7447 ) -> Range<Point> {
7448 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7449
7450 let mut line_bytes = snapshot
7451 .bytes_in_range(start..snapshot.max_point())
7452 .flatten()
7453 .copied();
7454
7455 // If this line currently begins with the line comment prefix, then record
7456 // the range containing the prefix.
7457 if line_bytes
7458 .by_ref()
7459 .take(comment_prefix.len())
7460 .eq(comment_prefix.bytes())
7461 {
7462 // Include any whitespace that matches the comment prefix.
7463 let matching_whitespace_len = line_bytes
7464 .zip(comment_prefix_whitespace.bytes())
7465 .take_while(|(a, b)| a == b)
7466 .count() as u32;
7467 let end = Point::new(
7468 start.row,
7469 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7470 );
7471 start..end
7472 } else {
7473 start..start
7474 }
7475 }
7476
7477 fn comment_suffix_range(
7478 snapshot: &MultiBufferSnapshot,
7479 row: MultiBufferRow,
7480 comment_suffix: &str,
7481 comment_suffix_has_leading_space: bool,
7482 ) -> Range<Point> {
7483 let end = Point::new(row.0, snapshot.line_len(row));
7484 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7485
7486 let mut line_end_bytes = snapshot
7487 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7488 .flatten()
7489 .copied();
7490
7491 let leading_space_len = if suffix_start_column > 0
7492 && line_end_bytes.next() == Some(b' ')
7493 && comment_suffix_has_leading_space
7494 {
7495 1
7496 } else {
7497 0
7498 };
7499
7500 // If this line currently begins with the line comment prefix, then record
7501 // the range containing the prefix.
7502 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7503 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7504 start..end
7505 } else {
7506 end..end
7507 }
7508 }
7509
7510 // TODO: Handle selections that cross excerpts
7511 for selection in &mut selections {
7512 let start_column = snapshot
7513 .indent_size_for_line(MultiBufferRow(selection.start.row))
7514 .len;
7515 let language = if let Some(language) =
7516 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7517 {
7518 language
7519 } else {
7520 continue;
7521 };
7522
7523 selection_edit_ranges.clear();
7524
7525 // If multiple selections contain a given row, avoid processing that
7526 // row more than once.
7527 let mut start_row = MultiBufferRow(selection.start.row);
7528 if last_toggled_row == Some(start_row) {
7529 start_row = start_row.next_row();
7530 }
7531 let end_row =
7532 if selection.end.row > selection.start.row && selection.end.column == 0 {
7533 MultiBufferRow(selection.end.row - 1)
7534 } else {
7535 MultiBufferRow(selection.end.row)
7536 };
7537 last_toggled_row = Some(end_row);
7538
7539 if start_row > end_row {
7540 continue;
7541 }
7542
7543 // If the language has line comments, toggle those.
7544 let full_comment_prefixes = language.line_comment_prefixes();
7545 if !full_comment_prefixes.is_empty() {
7546 let first_prefix = full_comment_prefixes
7547 .first()
7548 .expect("prefixes is non-empty");
7549 let prefix_trimmed_lengths = full_comment_prefixes
7550 .iter()
7551 .map(|p| p.trim_end_matches(' ').len())
7552 .collect::<SmallVec<[usize; 4]>>();
7553
7554 let mut all_selection_lines_are_comments = true;
7555
7556 for row in start_row.0..=end_row.0 {
7557 let row = MultiBufferRow(row);
7558 if start_row < end_row && snapshot.is_line_blank(row) {
7559 continue;
7560 }
7561
7562 let prefix_range = full_comment_prefixes
7563 .iter()
7564 .zip(prefix_trimmed_lengths.iter().copied())
7565 .map(|(prefix, trimmed_prefix_len)| {
7566 comment_prefix_range(
7567 snapshot.deref(),
7568 row,
7569 &prefix[..trimmed_prefix_len],
7570 &prefix[trimmed_prefix_len..],
7571 )
7572 })
7573 .max_by_key(|range| range.end.column - range.start.column)
7574 .expect("prefixes is non-empty");
7575
7576 if prefix_range.is_empty() {
7577 all_selection_lines_are_comments = false;
7578 }
7579
7580 selection_edit_ranges.push(prefix_range);
7581 }
7582
7583 if all_selection_lines_are_comments {
7584 edits.extend(
7585 selection_edit_ranges
7586 .iter()
7587 .cloned()
7588 .map(|range| (range, empty_str.clone())),
7589 );
7590 } else {
7591 let min_column = selection_edit_ranges
7592 .iter()
7593 .map(|range| range.start.column)
7594 .min()
7595 .unwrap_or(0);
7596 edits.extend(selection_edit_ranges.iter().map(|range| {
7597 let position = Point::new(range.start.row, min_column);
7598 (position..position, first_prefix.clone())
7599 }));
7600 }
7601 } else if let Some((full_comment_prefix, comment_suffix)) =
7602 language.block_comment_delimiters()
7603 {
7604 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7605 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7606 let prefix_range = comment_prefix_range(
7607 snapshot.deref(),
7608 start_row,
7609 comment_prefix,
7610 comment_prefix_whitespace,
7611 );
7612 let suffix_range = comment_suffix_range(
7613 snapshot.deref(),
7614 end_row,
7615 comment_suffix.trim_start_matches(' '),
7616 comment_suffix.starts_with(' '),
7617 );
7618
7619 if prefix_range.is_empty() || suffix_range.is_empty() {
7620 edits.push((
7621 prefix_range.start..prefix_range.start,
7622 full_comment_prefix.clone(),
7623 ));
7624 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7625 suffixes_inserted.push((end_row, comment_suffix.len()));
7626 } else {
7627 edits.push((prefix_range, empty_str.clone()));
7628 edits.push((suffix_range, empty_str.clone()));
7629 }
7630 } else {
7631 continue;
7632 }
7633 }
7634
7635 drop(snapshot);
7636 this.buffer.update(cx, |buffer, cx| {
7637 buffer.edit(edits, None, cx);
7638 });
7639
7640 // Adjust selections so that they end before any comment suffixes that
7641 // were inserted.
7642 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7643 let mut selections = this.selections.all::<Point>(cx);
7644 let snapshot = this.buffer.read(cx).read(cx);
7645 for selection in &mut selections {
7646 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7647 match row.cmp(&MultiBufferRow(selection.end.row)) {
7648 Ordering::Less => {
7649 suffixes_inserted.next();
7650 continue;
7651 }
7652 Ordering::Greater => break,
7653 Ordering::Equal => {
7654 if selection.end.column == snapshot.line_len(row) {
7655 if selection.is_empty() {
7656 selection.start.column -= suffix_len as u32;
7657 }
7658 selection.end.column -= suffix_len as u32;
7659 }
7660 break;
7661 }
7662 }
7663 }
7664 }
7665
7666 drop(snapshot);
7667 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7668
7669 let selections = this.selections.all::<Point>(cx);
7670 let selections_on_single_row = selections.windows(2).all(|selections| {
7671 selections[0].start.row == selections[1].start.row
7672 && selections[0].end.row == selections[1].end.row
7673 && selections[0].start.row == selections[0].end.row
7674 });
7675 let selections_selecting = selections
7676 .iter()
7677 .any(|selection| selection.start != selection.end);
7678 let advance_downwards = action.advance_downwards
7679 && selections_on_single_row
7680 && !selections_selecting
7681 && this.mode != EditorMode::SingleLine;
7682
7683 if advance_downwards {
7684 let snapshot = this.buffer.read(cx).snapshot(cx);
7685
7686 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7687 s.move_cursors_with(|display_snapshot, display_point, _| {
7688 let mut point = display_point.to_point(display_snapshot);
7689 point.row += 1;
7690 point = snapshot.clip_point(point, Bias::Left);
7691 let display_point = point.to_display_point(display_snapshot);
7692 let goal = SelectionGoal::HorizontalPosition(
7693 display_snapshot
7694 .x_for_display_point(display_point, &text_layout_details)
7695 .into(),
7696 );
7697 (display_point, goal)
7698 })
7699 });
7700 }
7701 });
7702 }
7703
7704 pub fn select_larger_syntax_node(
7705 &mut self,
7706 _: &SelectLargerSyntaxNode,
7707 cx: &mut ViewContext<Self>,
7708 ) {
7709 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7710 let buffer = self.buffer.read(cx).snapshot(cx);
7711 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7712
7713 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7714 let mut selected_larger_node = false;
7715 let new_selections = old_selections
7716 .iter()
7717 .map(|selection| {
7718 let old_range = selection.start..selection.end;
7719 let mut new_range = old_range.clone();
7720 while let Some(containing_range) =
7721 buffer.range_for_syntax_ancestor(new_range.clone())
7722 {
7723 new_range = containing_range;
7724 if !display_map.intersects_fold(new_range.start)
7725 && !display_map.intersects_fold(new_range.end)
7726 {
7727 break;
7728 }
7729 }
7730
7731 selected_larger_node |= new_range != old_range;
7732 Selection {
7733 id: selection.id,
7734 start: new_range.start,
7735 end: new_range.end,
7736 goal: SelectionGoal::None,
7737 reversed: selection.reversed,
7738 }
7739 })
7740 .collect::<Vec<_>>();
7741
7742 if selected_larger_node {
7743 stack.push(old_selections);
7744 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7745 s.select(new_selections);
7746 });
7747 }
7748 self.select_larger_syntax_node_stack = stack;
7749 }
7750
7751 pub fn select_smaller_syntax_node(
7752 &mut self,
7753 _: &SelectSmallerSyntaxNode,
7754 cx: &mut ViewContext<Self>,
7755 ) {
7756 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7757 if let Some(selections) = stack.pop() {
7758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7759 s.select(selections.to_vec());
7760 });
7761 }
7762 self.select_larger_syntax_node_stack = stack;
7763 }
7764
7765 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7766 let project = self.project.clone();
7767 cx.spawn(|this, mut cx| async move {
7768 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7769 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7770 }) else {
7771 return;
7772 };
7773
7774 let Some(project) = project else {
7775 return;
7776 };
7777 if project
7778 .update(&mut cx, |this, _| this.is_remote())
7779 .unwrap_or(true)
7780 {
7781 // Do not display any test indicators in remote projects.
7782 return;
7783 }
7784 let new_rows =
7785 cx.background_executor()
7786 .spawn({
7787 let snapshot = display_snapshot.clone();
7788 async move {
7789 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7790 }
7791 })
7792 .await;
7793 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7794
7795 this.update(&mut cx, |this, _| {
7796 this.clear_tasks();
7797 for (key, value) in rows {
7798 this.insert_tasks(key, value);
7799 }
7800 })
7801 .ok();
7802 })
7803 }
7804 fn fetch_runnable_ranges(
7805 snapshot: &DisplaySnapshot,
7806 range: Range<Anchor>,
7807 ) -> Vec<language::RunnableRange> {
7808 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7809 }
7810
7811 fn runnable_rows(
7812 project: Model<Project>,
7813 snapshot: DisplaySnapshot,
7814 runnable_ranges: Vec<RunnableRange>,
7815 mut cx: AsyncWindowContext,
7816 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7817 runnable_ranges
7818 .into_iter()
7819 .filter_map(|mut runnable| {
7820 let (tasks, _) = cx
7821 .update(|cx| {
7822 Self::resolve_runnable(project.clone(), &mut runnable.runnable, cx)
7823 })
7824 .ok()?;
7825 if tasks.is_empty() {
7826 return None;
7827 }
7828
7829 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7830
7831 let row = snapshot
7832 .buffer_snapshot
7833 .buffer_line_for_row(MultiBufferRow(point.row))?
7834 .1
7835 .start
7836 .row;
7837
7838 Some((
7839 (runnable.buffer_id, row),
7840 (
7841 runnable.run_range.start,
7842 RunnableTasks {
7843 templates: tasks,
7844 column: point.column,
7845 extra_variables: runnable.extra_captures,
7846 },
7847 ),
7848 ))
7849 })
7850 .collect()
7851 }
7852
7853 fn resolve_runnable(
7854 project: Model<Project>,
7855 runnable: &mut Runnable,
7856 cx: &WindowContext<'_>,
7857 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7858 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7859 let worktree_id = project
7860 .buffer_for_id(runnable.buffer)
7861 .and_then(|buffer| buffer.read(cx).file())
7862 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7863
7864 (project.task_inventory().clone(), worktree_id)
7865 });
7866
7867 let inventory = inventory.read(cx);
7868 let tags = mem::take(&mut runnable.tags);
7869 let mut tags: Vec<_> = tags
7870 .into_iter()
7871 .flat_map(|tag| {
7872 let tag = tag.0.clone();
7873 inventory
7874 .list_tasks(Some(runnable.language.clone()), worktree_id)
7875 .into_iter()
7876 .filter(move |(_, template)| {
7877 template.tags.iter().any(|source_tag| source_tag == &tag)
7878 })
7879 })
7880 .sorted_by_key(|(kind, _)| kind.to_owned())
7881 .collect();
7882 if let Some((leading_tag_source, _)) = tags.first() {
7883 // Strongest source wins; if we have worktree tag binding, prefer that to
7884 // global and language bindings;
7885 // if we have a global binding, prefer that to language binding.
7886 let first_mismatch = tags
7887 .iter()
7888 .position(|(tag_source, _)| tag_source != leading_tag_source);
7889 if let Some(index) = first_mismatch {
7890 tags.truncate(index);
7891 }
7892 }
7893
7894 (tags, worktree_id)
7895 }
7896
7897 pub fn move_to_enclosing_bracket(
7898 &mut self,
7899 _: &MoveToEnclosingBracket,
7900 cx: &mut ViewContext<Self>,
7901 ) {
7902 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7903 s.move_offsets_with(|snapshot, selection| {
7904 let Some(enclosing_bracket_ranges) =
7905 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7906 else {
7907 return;
7908 };
7909
7910 let mut best_length = usize::MAX;
7911 let mut best_inside = false;
7912 let mut best_in_bracket_range = false;
7913 let mut best_destination = None;
7914 for (open, close) in enclosing_bracket_ranges {
7915 let close = close.to_inclusive();
7916 let length = close.end() - open.start;
7917 let inside = selection.start >= open.end && selection.end <= *close.start();
7918 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7919 || close.contains(&selection.head());
7920
7921 // If best is next to a bracket and current isn't, skip
7922 if !in_bracket_range && best_in_bracket_range {
7923 continue;
7924 }
7925
7926 // Prefer smaller lengths unless best is inside and current isn't
7927 if length > best_length && (best_inside || !inside) {
7928 continue;
7929 }
7930
7931 best_length = length;
7932 best_inside = inside;
7933 best_in_bracket_range = in_bracket_range;
7934 best_destination = Some(
7935 if close.contains(&selection.start) && close.contains(&selection.end) {
7936 if inside {
7937 open.end
7938 } else {
7939 open.start
7940 }
7941 } else {
7942 if inside {
7943 *close.start()
7944 } else {
7945 *close.end()
7946 }
7947 },
7948 );
7949 }
7950
7951 if let Some(destination) = best_destination {
7952 selection.collapse_to(destination, SelectionGoal::None);
7953 }
7954 })
7955 });
7956 }
7957
7958 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7959 self.end_selection(cx);
7960 self.selection_history.mode = SelectionHistoryMode::Undoing;
7961 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7962 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7963 self.select_next_state = entry.select_next_state;
7964 self.select_prev_state = entry.select_prev_state;
7965 self.add_selections_state = entry.add_selections_state;
7966 self.request_autoscroll(Autoscroll::newest(), cx);
7967 }
7968 self.selection_history.mode = SelectionHistoryMode::Normal;
7969 }
7970
7971 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7972 self.end_selection(cx);
7973 self.selection_history.mode = SelectionHistoryMode::Redoing;
7974 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7975 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7976 self.select_next_state = entry.select_next_state;
7977 self.select_prev_state = entry.select_prev_state;
7978 self.add_selections_state = entry.add_selections_state;
7979 self.request_autoscroll(Autoscroll::newest(), cx);
7980 }
7981 self.selection_history.mode = SelectionHistoryMode::Normal;
7982 }
7983
7984 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7985 let selections = self.selections.disjoint_anchors();
7986
7987 let lines = if action.lines == 0 { 3 } else { action.lines };
7988
7989 self.buffer.update(cx, |buffer, cx| {
7990 buffer.expand_excerpts(
7991 selections
7992 .into_iter()
7993 .map(|selection| selection.head().excerpt_id)
7994 .dedup(),
7995 lines,
7996 cx,
7997 )
7998 })
7999 }
8000
8001 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
8002 self.buffer
8003 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
8004 }
8005
8006 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8007 self.go_to_diagnostic_impl(Direction::Next, cx)
8008 }
8009
8010 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8011 self.go_to_diagnostic_impl(Direction::Prev, cx)
8012 }
8013
8014 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8015 let buffer = self.buffer.read(cx).snapshot(cx);
8016 let selection = self.selections.newest::<usize>(cx);
8017
8018 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8019 if direction == Direction::Next {
8020 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8021 let (group_id, jump_to) = popover.activation_info();
8022 if self.activate_diagnostics(group_id, cx) {
8023 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8024 let mut new_selection = s.newest_anchor().clone();
8025 new_selection.collapse_to(jump_to, SelectionGoal::None);
8026 s.select_anchors(vec![new_selection.clone()]);
8027 });
8028 }
8029 return;
8030 }
8031 }
8032
8033 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8034 active_diagnostics
8035 .primary_range
8036 .to_offset(&buffer)
8037 .to_inclusive()
8038 });
8039 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8040 if active_primary_range.contains(&selection.head()) {
8041 *active_primary_range.start()
8042 } else {
8043 selection.head()
8044 }
8045 } else {
8046 selection.head()
8047 };
8048 let snapshot = self.snapshot(cx);
8049 loop {
8050 let diagnostics = if direction == Direction::Prev {
8051 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8052 } else {
8053 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8054 }
8055 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8056 let group = diagnostics
8057 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8058 // be sorted in a stable way
8059 // skip until we are at current active diagnostic, if it exists
8060 .skip_while(|entry| {
8061 (match direction {
8062 Direction::Prev => entry.range.start >= search_start,
8063 Direction::Next => entry.range.start <= search_start,
8064 }) && self
8065 .active_diagnostics
8066 .as_ref()
8067 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8068 })
8069 .find_map(|entry| {
8070 if entry.diagnostic.is_primary
8071 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8072 && !entry.range.is_empty()
8073 // if we match with the active diagnostic, skip it
8074 && Some(entry.diagnostic.group_id)
8075 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8076 {
8077 Some((entry.range, entry.diagnostic.group_id))
8078 } else {
8079 None
8080 }
8081 });
8082
8083 if let Some((primary_range, group_id)) = group {
8084 if self.activate_diagnostics(group_id, cx) {
8085 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8086 s.select(vec![Selection {
8087 id: selection.id,
8088 start: primary_range.start,
8089 end: primary_range.start,
8090 reversed: false,
8091 goal: SelectionGoal::None,
8092 }]);
8093 });
8094 }
8095 break;
8096 } else {
8097 // Cycle around to the start of the buffer, potentially moving back to the start of
8098 // the currently active diagnostic.
8099 active_primary_range.take();
8100 if direction == Direction::Prev {
8101 if search_start == buffer.len() {
8102 break;
8103 } else {
8104 search_start = buffer.len();
8105 }
8106 } else if search_start == 0 {
8107 break;
8108 } else {
8109 search_start = 0;
8110 }
8111 }
8112 }
8113 }
8114
8115 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8116 let snapshot = self
8117 .display_map
8118 .update(cx, |display_map, cx| display_map.snapshot(cx));
8119 let selection = self.selections.newest::<Point>(cx);
8120
8121 if !self.seek_in_direction(
8122 &snapshot,
8123 selection.head(),
8124 false,
8125 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8126 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8127 ),
8128 cx,
8129 ) {
8130 let wrapped_point = Point::zero();
8131 self.seek_in_direction(
8132 &snapshot,
8133 wrapped_point,
8134 true,
8135 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8136 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8137 ),
8138 cx,
8139 );
8140 }
8141 }
8142
8143 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8144 let snapshot = self
8145 .display_map
8146 .update(cx, |display_map, cx| display_map.snapshot(cx));
8147 let selection = self.selections.newest::<Point>(cx);
8148
8149 if !self.seek_in_direction(
8150 &snapshot,
8151 selection.head(),
8152 false,
8153 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8154 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8155 ),
8156 cx,
8157 ) {
8158 let wrapped_point = snapshot.buffer_snapshot.max_point();
8159 self.seek_in_direction(
8160 &snapshot,
8161 wrapped_point,
8162 true,
8163 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8164 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8165 ),
8166 cx,
8167 );
8168 }
8169 }
8170
8171 fn seek_in_direction(
8172 &mut self,
8173 snapshot: &DisplaySnapshot,
8174 initial_point: Point,
8175 is_wrapped: bool,
8176 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8177 cx: &mut ViewContext<Editor>,
8178 ) -> bool {
8179 let display_point = initial_point.to_display_point(snapshot);
8180 let mut hunks = hunks
8181 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8182 .filter(|hunk| {
8183 if is_wrapped {
8184 true
8185 } else {
8186 !hunk.contains_display_row(display_point.row())
8187 }
8188 })
8189 .dedup();
8190
8191 if let Some(hunk) = hunks.next() {
8192 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8193 let row = hunk.start_display_row();
8194 let point = DisplayPoint::new(row, 0);
8195 s.select_display_ranges([point..point]);
8196 });
8197
8198 true
8199 } else {
8200 false
8201 }
8202 }
8203
8204 pub fn go_to_definition(
8205 &mut self,
8206 _: &GoToDefinition,
8207 cx: &mut ViewContext<Self>,
8208 ) -> Task<Result<bool>> {
8209 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8210 }
8211
8212 pub fn go_to_implementation(
8213 &mut self,
8214 _: &GoToImplementation,
8215 cx: &mut ViewContext<Self>,
8216 ) -> Task<Result<bool>> {
8217 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8218 }
8219
8220 pub fn go_to_implementation_split(
8221 &mut self,
8222 _: &GoToImplementationSplit,
8223 cx: &mut ViewContext<Self>,
8224 ) -> Task<Result<bool>> {
8225 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8226 }
8227
8228 pub fn go_to_type_definition(
8229 &mut self,
8230 _: &GoToTypeDefinition,
8231 cx: &mut ViewContext<Self>,
8232 ) -> Task<Result<bool>> {
8233 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8234 }
8235
8236 pub fn go_to_definition_split(
8237 &mut self,
8238 _: &GoToDefinitionSplit,
8239 cx: &mut ViewContext<Self>,
8240 ) -> Task<Result<bool>> {
8241 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8242 }
8243
8244 pub fn go_to_type_definition_split(
8245 &mut self,
8246 _: &GoToTypeDefinitionSplit,
8247 cx: &mut ViewContext<Self>,
8248 ) -> Task<Result<bool>> {
8249 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8250 }
8251
8252 fn go_to_definition_of_kind(
8253 &mut self,
8254 kind: GotoDefinitionKind,
8255 split: bool,
8256 cx: &mut ViewContext<Self>,
8257 ) -> Task<Result<bool>> {
8258 let Some(workspace) = self.workspace() else {
8259 return Task::ready(Ok(false));
8260 };
8261 let buffer = self.buffer.read(cx);
8262 let head = self.selections.newest::<usize>(cx).head();
8263 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8264 text_anchor
8265 } else {
8266 return Task::ready(Ok(false));
8267 };
8268
8269 let project = workspace.read(cx).project().clone();
8270 let definitions = project.update(cx, |project, cx| match kind {
8271 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8272 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8273 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8274 });
8275
8276 cx.spawn(|editor, mut cx| async move {
8277 let definitions = definitions.await?;
8278 let navigated = editor
8279 .update(&mut cx, |editor, cx| {
8280 editor.navigate_to_hover_links(
8281 Some(kind),
8282 definitions
8283 .into_iter()
8284 .filter(|location| {
8285 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8286 })
8287 .map(HoverLink::Text)
8288 .collect::<Vec<_>>(),
8289 split,
8290 cx,
8291 )
8292 })?
8293 .await?;
8294 anyhow::Ok(navigated)
8295 })
8296 }
8297
8298 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8299 let position = self.selections.newest_anchor().head();
8300 let Some((buffer, buffer_position)) =
8301 self.buffer.read(cx).text_anchor_for_position(position, cx)
8302 else {
8303 return;
8304 };
8305
8306 cx.spawn(|editor, mut cx| async move {
8307 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8308 editor.update(&mut cx, |_, cx| {
8309 cx.open_url(&url);
8310 })
8311 } else {
8312 Ok(())
8313 }
8314 })
8315 .detach();
8316 }
8317
8318 pub(crate) fn navigate_to_hover_links(
8319 &mut self,
8320 kind: Option<GotoDefinitionKind>,
8321 mut definitions: Vec<HoverLink>,
8322 split: bool,
8323 cx: &mut ViewContext<Editor>,
8324 ) -> Task<Result<bool>> {
8325 // If there is one definition, just open it directly
8326 if definitions.len() == 1 {
8327 let definition = definitions.pop().unwrap();
8328 let target_task = match definition {
8329 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8330 HoverLink::InlayHint(lsp_location, server_id) => {
8331 self.compute_target_location(lsp_location, server_id, cx)
8332 }
8333 HoverLink::Url(url) => {
8334 cx.open_url(&url);
8335 Task::ready(Ok(None))
8336 }
8337 };
8338 cx.spawn(|editor, mut cx| async move {
8339 let target = target_task.await.context("target resolution task")?;
8340 if let Some(target) = target {
8341 editor.update(&mut cx, |editor, cx| {
8342 let Some(workspace) = editor.workspace() else {
8343 return false;
8344 };
8345 let pane = workspace.read(cx).active_pane().clone();
8346
8347 let range = target.range.to_offset(target.buffer.read(cx));
8348 let range = editor.range_for_match(&range);
8349 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8350 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8351 s.select_ranges([range]);
8352 });
8353 } else {
8354 cx.window_context().defer(move |cx| {
8355 let target_editor: View<Self> =
8356 workspace.update(cx, |workspace, cx| {
8357 let pane = if split {
8358 workspace.adjacent_pane(cx)
8359 } else {
8360 workspace.active_pane().clone()
8361 };
8362
8363 workspace.open_project_item(pane, target.buffer.clone(), cx)
8364 });
8365 target_editor.update(cx, |target_editor, cx| {
8366 // When selecting a definition in a different buffer, disable the nav history
8367 // to avoid creating a history entry at the previous cursor location.
8368 pane.update(cx, |pane, _| pane.disable_history());
8369 target_editor.change_selections(
8370 Some(Autoscroll::focused()),
8371 cx,
8372 |s| {
8373 s.select_ranges([range]);
8374 },
8375 );
8376 pane.update(cx, |pane, _| pane.enable_history());
8377 });
8378 });
8379 }
8380 true
8381 })
8382 } else {
8383 Ok(false)
8384 }
8385 })
8386 } else if !definitions.is_empty() {
8387 let replica_id = self.replica_id(cx);
8388 cx.spawn(|editor, mut cx| async move {
8389 let (title, location_tasks, workspace) = editor
8390 .update(&mut cx, |editor, cx| {
8391 let tab_kind = match kind {
8392 Some(GotoDefinitionKind::Implementation) => "Implementations",
8393 _ => "Definitions",
8394 };
8395 let title = definitions
8396 .iter()
8397 .find_map(|definition| match definition {
8398 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8399 let buffer = origin.buffer.read(cx);
8400 format!(
8401 "{} for {}",
8402 tab_kind,
8403 buffer
8404 .text_for_range(origin.range.clone())
8405 .collect::<String>()
8406 )
8407 }),
8408 HoverLink::InlayHint(_, _) => None,
8409 HoverLink::Url(_) => None,
8410 })
8411 .unwrap_or(tab_kind.to_string());
8412 let location_tasks = definitions
8413 .into_iter()
8414 .map(|definition| match definition {
8415 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8416 HoverLink::InlayHint(lsp_location, server_id) => {
8417 editor.compute_target_location(lsp_location, server_id, cx)
8418 }
8419 HoverLink::Url(_) => Task::ready(Ok(None)),
8420 })
8421 .collect::<Vec<_>>();
8422 (title, location_tasks, editor.workspace().clone())
8423 })
8424 .context("location tasks preparation")?;
8425
8426 let locations = futures::future::join_all(location_tasks)
8427 .await
8428 .into_iter()
8429 .filter_map(|location| location.transpose())
8430 .collect::<Result<_>>()
8431 .context("location tasks")?;
8432
8433 let Some(workspace) = workspace else {
8434 return Ok(false);
8435 };
8436 let opened = workspace
8437 .update(&mut cx, |workspace, cx| {
8438 Self::open_locations_in_multibuffer(
8439 workspace, locations, replica_id, title, split, cx,
8440 )
8441 })
8442 .ok();
8443
8444 anyhow::Ok(opened.is_some())
8445 })
8446 } else {
8447 Task::ready(Ok(false))
8448 }
8449 }
8450
8451 fn compute_target_location(
8452 &self,
8453 lsp_location: lsp::Location,
8454 server_id: LanguageServerId,
8455 cx: &mut ViewContext<Editor>,
8456 ) -> Task<anyhow::Result<Option<Location>>> {
8457 let Some(project) = self.project.clone() else {
8458 return Task::Ready(Some(Ok(None)));
8459 };
8460
8461 cx.spawn(move |editor, mut cx| async move {
8462 let location_task = editor.update(&mut cx, |editor, cx| {
8463 project.update(cx, |project, cx| {
8464 let language_server_name =
8465 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8466 project
8467 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8468 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8469 });
8470 language_server_name.map(|language_server_name| {
8471 project.open_local_buffer_via_lsp(
8472 lsp_location.uri.clone(),
8473 server_id,
8474 language_server_name,
8475 cx,
8476 )
8477 })
8478 })
8479 })?;
8480 let location = match location_task {
8481 Some(task) => Some({
8482 let target_buffer_handle = task.await.context("open local buffer")?;
8483 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8484 let target_start = target_buffer
8485 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8486 let target_end = target_buffer
8487 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8488 target_buffer.anchor_after(target_start)
8489 ..target_buffer.anchor_before(target_end)
8490 })?;
8491 Location {
8492 buffer: target_buffer_handle,
8493 range,
8494 }
8495 }),
8496 None => None,
8497 };
8498 Ok(location)
8499 })
8500 }
8501
8502 pub fn find_all_references(
8503 &mut self,
8504 _: &FindAllReferences,
8505 cx: &mut ViewContext<Self>,
8506 ) -> Option<Task<Result<()>>> {
8507 let multi_buffer = self.buffer.read(cx);
8508 let selection = self.selections.newest::<usize>(cx);
8509 let head = selection.head();
8510
8511 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8512 let head_anchor = multi_buffer_snapshot.anchor_at(
8513 head,
8514 if head < selection.tail() {
8515 Bias::Right
8516 } else {
8517 Bias::Left
8518 },
8519 );
8520
8521 match self
8522 .find_all_references_task_sources
8523 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8524 {
8525 Ok(_) => {
8526 log::info!(
8527 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8528 );
8529 return None;
8530 }
8531 Err(i) => {
8532 self.find_all_references_task_sources.insert(i, head_anchor);
8533 }
8534 }
8535
8536 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8537 let replica_id = self.replica_id(cx);
8538 let workspace = self.workspace()?;
8539 let project = workspace.read(cx).project().clone();
8540 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8541 Some(cx.spawn(|editor, mut cx| async move {
8542 let _cleanup = defer({
8543 let mut cx = cx.clone();
8544 move || {
8545 let _ = editor.update(&mut cx, |editor, _| {
8546 if let Ok(i) =
8547 editor
8548 .find_all_references_task_sources
8549 .binary_search_by(|anchor| {
8550 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8551 })
8552 {
8553 editor.find_all_references_task_sources.remove(i);
8554 }
8555 });
8556 }
8557 });
8558
8559 let locations = references.await?;
8560 if locations.is_empty() {
8561 return anyhow::Ok(());
8562 }
8563
8564 workspace.update(&mut cx, |workspace, cx| {
8565 let title = locations
8566 .first()
8567 .as_ref()
8568 .map(|location| {
8569 let buffer = location.buffer.read(cx);
8570 format!(
8571 "References to `{}`",
8572 buffer
8573 .text_for_range(location.range.clone())
8574 .collect::<String>()
8575 )
8576 })
8577 .unwrap();
8578 Self::open_locations_in_multibuffer(
8579 workspace, locations, replica_id, title, false, cx,
8580 );
8581 })
8582 }))
8583 }
8584
8585 /// Opens a multibuffer with the given project locations in it
8586 pub fn open_locations_in_multibuffer(
8587 workspace: &mut Workspace,
8588 mut locations: Vec<Location>,
8589 replica_id: ReplicaId,
8590 title: String,
8591 split: bool,
8592 cx: &mut ViewContext<Workspace>,
8593 ) {
8594 // If there are multiple definitions, open them in a multibuffer
8595 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8596 let mut locations = locations.into_iter().peekable();
8597 let mut ranges_to_highlight = Vec::new();
8598 let capability = workspace.project().read(cx).capability();
8599
8600 let excerpt_buffer = cx.new_model(|cx| {
8601 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8602 while let Some(location) = locations.next() {
8603 let buffer = location.buffer.read(cx);
8604 let mut ranges_for_buffer = Vec::new();
8605 let range = location.range.to_offset(buffer);
8606 ranges_for_buffer.push(range.clone());
8607
8608 while let Some(next_location) = locations.peek() {
8609 if next_location.buffer == location.buffer {
8610 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8611 locations.next();
8612 } else {
8613 break;
8614 }
8615 }
8616
8617 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8618 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8619 location.buffer.clone(),
8620 ranges_for_buffer,
8621 DEFAULT_MULTIBUFFER_CONTEXT,
8622 cx,
8623 ))
8624 }
8625
8626 multibuffer.with_title(title)
8627 });
8628
8629 let editor = cx.new_view(|cx| {
8630 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8631 });
8632 editor.update(cx, |editor, cx| {
8633 editor.highlight_background::<Self>(
8634 &ranges_to_highlight,
8635 |theme| theme.editor_highlighted_line_background,
8636 cx,
8637 );
8638 });
8639
8640 let item = Box::new(editor);
8641 let item_id = item.item_id();
8642
8643 if split {
8644 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8645 } else {
8646 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8647 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8648 pane.close_current_preview_item(cx)
8649 } else {
8650 None
8651 }
8652 });
8653 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8654 }
8655 workspace.active_pane().update(cx, |pane, cx| {
8656 pane.set_preview_item_id(Some(item_id), cx);
8657 });
8658 }
8659
8660 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8661 use language::ToOffset as _;
8662
8663 let project = self.project.clone()?;
8664 let selection = self.selections.newest_anchor().clone();
8665 let (cursor_buffer, cursor_buffer_position) = self
8666 .buffer
8667 .read(cx)
8668 .text_anchor_for_position(selection.head(), cx)?;
8669 let (tail_buffer, cursor_buffer_position_end) = self
8670 .buffer
8671 .read(cx)
8672 .text_anchor_for_position(selection.tail(), cx)?;
8673 if tail_buffer != cursor_buffer {
8674 return None;
8675 }
8676
8677 let snapshot = cursor_buffer.read(cx).snapshot();
8678 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8679 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8680 let prepare_rename = project.update(cx, |project, cx| {
8681 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8682 });
8683 drop(snapshot);
8684
8685 Some(cx.spawn(|this, mut cx| async move {
8686 let rename_range = if let Some(range) = prepare_rename.await? {
8687 Some(range)
8688 } else {
8689 this.update(&mut cx, |this, cx| {
8690 let buffer = this.buffer.read(cx).snapshot(cx);
8691 let mut buffer_highlights = this
8692 .document_highlights_for_position(selection.head(), &buffer)
8693 .filter(|highlight| {
8694 highlight.start.excerpt_id == selection.head().excerpt_id
8695 && highlight.end.excerpt_id == selection.head().excerpt_id
8696 });
8697 buffer_highlights
8698 .next()
8699 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8700 })?
8701 };
8702 if let Some(rename_range) = rename_range {
8703 this.update(&mut cx, |this, cx| {
8704 let snapshot = cursor_buffer.read(cx).snapshot();
8705 let rename_buffer_range = rename_range.to_offset(&snapshot);
8706 let cursor_offset_in_rename_range =
8707 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8708 let cursor_offset_in_rename_range_end =
8709 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8710
8711 this.take_rename(false, cx);
8712 let buffer = this.buffer.read(cx).read(cx);
8713 let cursor_offset = selection.head().to_offset(&buffer);
8714 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8715 let rename_end = rename_start + rename_buffer_range.len();
8716 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8717 let mut old_highlight_id = None;
8718 let old_name: Arc<str> = buffer
8719 .chunks(rename_start..rename_end, true)
8720 .map(|chunk| {
8721 if old_highlight_id.is_none() {
8722 old_highlight_id = chunk.syntax_highlight_id;
8723 }
8724 chunk.text
8725 })
8726 .collect::<String>()
8727 .into();
8728
8729 drop(buffer);
8730
8731 // Position the selection in the rename editor so that it matches the current selection.
8732 this.show_local_selections = false;
8733 let rename_editor = cx.new_view(|cx| {
8734 let mut editor = Editor::single_line(cx);
8735 editor.buffer.update(cx, |buffer, cx| {
8736 buffer.edit([(0..0, old_name.clone())], None, cx)
8737 });
8738 let rename_selection_range = match cursor_offset_in_rename_range
8739 .cmp(&cursor_offset_in_rename_range_end)
8740 {
8741 Ordering::Equal => {
8742 editor.select_all(&SelectAll, cx);
8743 return editor;
8744 }
8745 Ordering::Less => {
8746 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8747 }
8748 Ordering::Greater => {
8749 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8750 }
8751 };
8752 if rename_selection_range.end > old_name.len() {
8753 editor.select_all(&SelectAll, cx);
8754 } else {
8755 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8756 s.select_ranges([rename_selection_range]);
8757 });
8758 }
8759 editor
8760 });
8761
8762 let write_highlights =
8763 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8764 let read_highlights =
8765 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8766 let ranges = write_highlights
8767 .iter()
8768 .flat_map(|(_, ranges)| ranges.iter())
8769 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8770 .cloned()
8771 .collect();
8772
8773 this.highlight_text::<Rename>(
8774 ranges,
8775 HighlightStyle {
8776 fade_out: Some(0.6),
8777 ..Default::default()
8778 },
8779 cx,
8780 );
8781 let rename_focus_handle = rename_editor.focus_handle(cx);
8782 cx.focus(&rename_focus_handle);
8783 let block_id = this.insert_blocks(
8784 [BlockProperties {
8785 style: BlockStyle::Flex,
8786 position: range.start,
8787 height: 1,
8788 render: Box::new({
8789 let rename_editor = rename_editor.clone();
8790 move |cx: &mut BlockContext| {
8791 let mut text_style = cx.editor_style.text.clone();
8792 if let Some(highlight_style) = old_highlight_id
8793 .and_then(|h| h.style(&cx.editor_style.syntax))
8794 {
8795 text_style = text_style.highlight(highlight_style);
8796 }
8797 div()
8798 .pl(cx.anchor_x)
8799 .child(EditorElement::new(
8800 &rename_editor,
8801 EditorStyle {
8802 background: cx.theme().system().transparent,
8803 local_player: cx.editor_style.local_player,
8804 text: text_style,
8805 scrollbar_width: cx.editor_style.scrollbar_width,
8806 syntax: cx.editor_style.syntax.clone(),
8807 status: cx.editor_style.status.clone(),
8808 inlay_hints_style: HighlightStyle {
8809 color: Some(cx.theme().status().hint),
8810 font_weight: Some(FontWeight::BOLD),
8811 ..HighlightStyle::default()
8812 },
8813 suggestions_style: HighlightStyle {
8814 color: Some(cx.theme().status().predictive),
8815 ..HighlightStyle::default()
8816 },
8817 },
8818 ))
8819 .into_any_element()
8820 }
8821 }),
8822 disposition: BlockDisposition::Below,
8823 }],
8824 Some(Autoscroll::fit()),
8825 cx,
8826 )[0];
8827 this.pending_rename = Some(RenameState {
8828 range,
8829 old_name,
8830 editor: rename_editor,
8831 block_id,
8832 });
8833 })?;
8834 }
8835
8836 Ok(())
8837 }))
8838 }
8839
8840 pub fn confirm_rename(
8841 &mut self,
8842 _: &ConfirmRename,
8843 cx: &mut ViewContext<Self>,
8844 ) -> Option<Task<Result<()>>> {
8845 let rename = self.take_rename(false, cx)?;
8846 let workspace = self.workspace()?;
8847 let (start_buffer, start) = self
8848 .buffer
8849 .read(cx)
8850 .text_anchor_for_position(rename.range.start, cx)?;
8851 let (end_buffer, end) = self
8852 .buffer
8853 .read(cx)
8854 .text_anchor_for_position(rename.range.end, cx)?;
8855 if start_buffer != end_buffer {
8856 return None;
8857 }
8858
8859 let buffer = start_buffer;
8860 let range = start..end;
8861 let old_name = rename.old_name;
8862 let new_name = rename.editor.read(cx).text(cx);
8863
8864 let rename = workspace
8865 .read(cx)
8866 .project()
8867 .clone()
8868 .update(cx, |project, cx| {
8869 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8870 });
8871 let workspace = workspace.downgrade();
8872
8873 Some(cx.spawn(|editor, mut cx| async move {
8874 let project_transaction = rename.await?;
8875 Self::open_project_transaction(
8876 &editor,
8877 workspace,
8878 project_transaction,
8879 format!("Rename: {} → {}", old_name, new_name),
8880 cx.clone(),
8881 )
8882 .await?;
8883
8884 editor.update(&mut cx, |editor, cx| {
8885 editor.refresh_document_highlights(cx);
8886 })?;
8887 Ok(())
8888 }))
8889 }
8890
8891 fn take_rename(
8892 &mut self,
8893 moving_cursor: bool,
8894 cx: &mut ViewContext<Self>,
8895 ) -> Option<RenameState> {
8896 let rename = self.pending_rename.take()?;
8897 if rename.editor.focus_handle(cx).is_focused(cx) {
8898 cx.focus(&self.focus_handle);
8899 }
8900
8901 self.remove_blocks(
8902 [rename.block_id].into_iter().collect(),
8903 Some(Autoscroll::fit()),
8904 cx,
8905 );
8906 self.clear_highlights::<Rename>(cx);
8907 self.show_local_selections = true;
8908
8909 if moving_cursor {
8910 let rename_editor = rename.editor.read(cx);
8911 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8912
8913 // Update the selection to match the position of the selection inside
8914 // the rename editor.
8915 let snapshot = self.buffer.read(cx).read(cx);
8916 let rename_range = rename.range.to_offset(&snapshot);
8917 let cursor_in_editor = snapshot
8918 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8919 .min(rename_range.end);
8920 drop(snapshot);
8921
8922 self.change_selections(None, cx, |s| {
8923 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8924 });
8925 } else {
8926 self.refresh_document_highlights(cx);
8927 }
8928
8929 Some(rename)
8930 }
8931
8932 pub fn pending_rename(&self) -> Option<&RenameState> {
8933 self.pending_rename.as_ref()
8934 }
8935
8936 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8937 let project = match &self.project {
8938 Some(project) => project.clone(),
8939 None => return None,
8940 };
8941
8942 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8943 }
8944
8945 fn perform_format(
8946 &mut self,
8947 project: Model<Project>,
8948 trigger: FormatTrigger,
8949 cx: &mut ViewContext<Self>,
8950 ) -> Task<Result<()>> {
8951 let buffer = self.buffer().clone();
8952 let mut buffers = buffer.read(cx).all_buffers();
8953 if trigger == FormatTrigger::Save {
8954 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8955 }
8956
8957 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8958 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8959
8960 cx.spawn(|_, mut cx| async move {
8961 let transaction = futures::select_biased! {
8962 () = timeout => {
8963 log::warn!("timed out waiting for formatting");
8964 None
8965 }
8966 transaction = format.log_err().fuse() => transaction,
8967 };
8968
8969 buffer
8970 .update(&mut cx, |buffer, cx| {
8971 if let Some(transaction) = transaction {
8972 if !buffer.is_singleton() {
8973 buffer.push_transaction(&transaction.0, cx);
8974 }
8975 }
8976
8977 cx.notify();
8978 })
8979 .ok();
8980
8981 Ok(())
8982 })
8983 }
8984
8985 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8986 if let Some(project) = self.project.clone() {
8987 self.buffer.update(cx, |multi_buffer, cx| {
8988 project.update(cx, |project, cx| {
8989 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8990 });
8991 })
8992 }
8993 }
8994
8995 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8996 cx.show_character_palette();
8997 }
8998
8999 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9000 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9001 let buffer = self.buffer.read(cx).snapshot(cx);
9002 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9003 let is_valid = buffer
9004 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9005 .any(|entry| {
9006 entry.diagnostic.is_primary
9007 && !entry.range.is_empty()
9008 && entry.range.start == primary_range_start
9009 && entry.diagnostic.message == active_diagnostics.primary_message
9010 });
9011
9012 if is_valid != active_diagnostics.is_valid {
9013 active_diagnostics.is_valid = is_valid;
9014 let mut new_styles = HashMap::default();
9015 for (block_id, diagnostic) in &active_diagnostics.blocks {
9016 new_styles.insert(
9017 *block_id,
9018 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9019 );
9020 }
9021 self.display_map
9022 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9023 }
9024 }
9025 }
9026
9027 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9028 self.dismiss_diagnostics(cx);
9029 let snapshot = self.snapshot(cx);
9030 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9031 let buffer = self.buffer.read(cx).snapshot(cx);
9032
9033 let mut primary_range = None;
9034 let mut primary_message = None;
9035 let mut group_end = Point::zero();
9036 let diagnostic_group = buffer
9037 .diagnostic_group::<MultiBufferPoint>(group_id)
9038 .filter_map(|entry| {
9039 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9040 && (entry.range.start.row == entry.range.end.row
9041 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9042 {
9043 return None;
9044 }
9045 if entry.range.end > group_end {
9046 group_end = entry.range.end;
9047 }
9048 if entry.diagnostic.is_primary {
9049 primary_range = Some(entry.range.clone());
9050 primary_message = Some(entry.diagnostic.message.clone());
9051 }
9052 Some(entry)
9053 })
9054 .collect::<Vec<_>>();
9055 let primary_range = primary_range?;
9056 let primary_message = primary_message?;
9057 let primary_range =
9058 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9059
9060 let blocks = display_map
9061 .insert_blocks(
9062 diagnostic_group.iter().map(|entry| {
9063 let diagnostic = entry.diagnostic.clone();
9064 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9065 BlockProperties {
9066 style: BlockStyle::Fixed,
9067 position: buffer.anchor_after(entry.range.start),
9068 height: message_height,
9069 render: diagnostic_block_renderer(diagnostic, true),
9070 disposition: BlockDisposition::Below,
9071 }
9072 }),
9073 cx,
9074 )
9075 .into_iter()
9076 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9077 .collect();
9078
9079 Some(ActiveDiagnosticGroup {
9080 primary_range,
9081 primary_message,
9082 group_id,
9083 blocks,
9084 is_valid: true,
9085 })
9086 });
9087 self.active_diagnostics.is_some()
9088 }
9089
9090 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9091 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9092 self.display_map.update(cx, |display_map, cx| {
9093 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9094 });
9095 cx.notify();
9096 }
9097 }
9098
9099 pub fn set_selections_from_remote(
9100 &mut self,
9101 selections: Vec<Selection<Anchor>>,
9102 pending_selection: Option<Selection<Anchor>>,
9103 cx: &mut ViewContext<Self>,
9104 ) {
9105 let old_cursor_position = self.selections.newest_anchor().head();
9106 self.selections.change_with(cx, |s| {
9107 s.select_anchors(selections);
9108 if let Some(pending_selection) = pending_selection {
9109 s.set_pending(pending_selection, SelectMode::Character);
9110 } else {
9111 s.clear_pending();
9112 }
9113 });
9114 self.selections_did_change(false, &old_cursor_position, cx);
9115 }
9116
9117 fn push_to_selection_history(&mut self) {
9118 self.selection_history.push(SelectionHistoryEntry {
9119 selections: self.selections.disjoint_anchors(),
9120 select_next_state: self.select_next_state.clone(),
9121 select_prev_state: self.select_prev_state.clone(),
9122 add_selections_state: self.add_selections_state.clone(),
9123 });
9124 }
9125
9126 pub fn transact(
9127 &mut self,
9128 cx: &mut ViewContext<Self>,
9129 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9130 ) -> Option<TransactionId> {
9131 self.start_transaction_at(Instant::now(), cx);
9132 update(self, cx);
9133 self.end_transaction_at(Instant::now(), cx)
9134 }
9135
9136 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9137 self.end_selection(cx);
9138 if let Some(tx_id) = self
9139 .buffer
9140 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9141 {
9142 self.selection_history
9143 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9144 cx.emit(EditorEvent::TransactionBegun {
9145 transaction_id: tx_id,
9146 })
9147 }
9148 }
9149
9150 fn end_transaction_at(
9151 &mut self,
9152 now: Instant,
9153 cx: &mut ViewContext<Self>,
9154 ) -> Option<TransactionId> {
9155 if let Some(tx_id) = self
9156 .buffer
9157 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9158 {
9159 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9160 *end_selections = Some(self.selections.disjoint_anchors());
9161 } else {
9162 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9163 }
9164
9165 cx.emit(EditorEvent::Edited);
9166 Some(tx_id)
9167 } else {
9168 None
9169 }
9170 }
9171
9172 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9173 let mut fold_ranges = Vec::new();
9174
9175 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9176
9177 let selections = self.selections.all_adjusted(cx);
9178 for selection in selections {
9179 let range = selection.range().sorted();
9180 let buffer_start_row = range.start.row;
9181
9182 for row in (0..=range.end.row).rev() {
9183 let fold_range = display_map.foldable_range(MultiBufferRow(row));
9184
9185 if let Some(fold_range) = fold_range {
9186 if fold_range.end.row >= buffer_start_row {
9187 fold_ranges.push(fold_range);
9188 if row <= range.start.row {
9189 break;
9190 }
9191 }
9192 }
9193 }
9194 }
9195
9196 self.fold_ranges(fold_ranges, true, cx);
9197 }
9198
9199 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9200 let buffer_row = fold_at.buffer_row;
9201 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9202
9203 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9204 let autoscroll = self
9205 .selections
9206 .all::<Point>(cx)
9207 .iter()
9208 .any(|selection| fold_range.overlaps(&selection.range()));
9209
9210 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9211 }
9212 }
9213
9214 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9215 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9216 let buffer = &display_map.buffer_snapshot;
9217 let selections = self.selections.all::<Point>(cx);
9218 let ranges = selections
9219 .iter()
9220 .map(|s| {
9221 let range = s.display_range(&display_map).sorted();
9222 let mut start = range.start.to_point(&display_map);
9223 let mut end = range.end.to_point(&display_map);
9224 start.column = 0;
9225 end.column = buffer.line_len(MultiBufferRow(end.row));
9226 start..end
9227 })
9228 .collect::<Vec<_>>();
9229
9230 self.unfold_ranges(ranges, true, true, cx);
9231 }
9232
9233 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9234 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9235
9236 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9237 ..Point::new(
9238 unfold_at.buffer_row.0,
9239 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9240 );
9241
9242 let autoscroll = self
9243 .selections
9244 .all::<Point>(cx)
9245 .iter()
9246 .any(|selection| selection.range().overlaps(&intersection_range));
9247
9248 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9249 }
9250
9251 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9252 let selections = self.selections.all::<Point>(cx);
9253 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9254 let line_mode = self.selections.line_mode;
9255 let ranges = selections.into_iter().map(|s| {
9256 if line_mode {
9257 let start = Point::new(s.start.row, 0);
9258 let end = Point::new(
9259 s.end.row,
9260 display_map
9261 .buffer_snapshot
9262 .line_len(MultiBufferRow(s.end.row)),
9263 );
9264 start..end
9265 } else {
9266 s.start..s.end
9267 }
9268 });
9269 self.fold_ranges(ranges, true, cx);
9270 }
9271
9272 pub fn fold_ranges<T: ToOffset + Clone>(
9273 &mut self,
9274 ranges: impl IntoIterator<Item = Range<T>>,
9275 auto_scroll: bool,
9276 cx: &mut ViewContext<Self>,
9277 ) {
9278 let mut fold_ranges = Vec::new();
9279 let mut buffers_affected = HashMap::default();
9280 let multi_buffer = self.buffer().read(cx);
9281 for range in ranges {
9282 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9283 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9284 };
9285 fold_ranges.push(range);
9286 }
9287
9288 let mut ranges = fold_ranges.into_iter().peekable();
9289 if ranges.peek().is_some() {
9290 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9291
9292 if auto_scroll {
9293 self.request_autoscroll(Autoscroll::fit(), cx);
9294 }
9295
9296 for buffer in buffers_affected.into_values() {
9297 self.sync_expanded_diff_hunks(buffer, cx);
9298 }
9299
9300 cx.notify();
9301
9302 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9303 // Clear diagnostics block when folding a range that contains it.
9304 let snapshot = self.snapshot(cx);
9305 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9306 drop(snapshot);
9307 self.active_diagnostics = Some(active_diagnostics);
9308 self.dismiss_diagnostics(cx);
9309 } else {
9310 self.active_diagnostics = Some(active_diagnostics);
9311 }
9312 }
9313
9314 self.scrollbar_marker_state.dirty = true;
9315 }
9316 }
9317
9318 pub fn unfold_ranges<T: ToOffset + Clone>(
9319 &mut self,
9320 ranges: impl IntoIterator<Item = Range<T>>,
9321 inclusive: bool,
9322 auto_scroll: bool,
9323 cx: &mut ViewContext<Self>,
9324 ) {
9325 let mut unfold_ranges = Vec::new();
9326 let mut buffers_affected = HashMap::default();
9327 let multi_buffer = self.buffer().read(cx);
9328 for range in ranges {
9329 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9330 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9331 };
9332 unfold_ranges.push(range);
9333 }
9334
9335 let mut ranges = unfold_ranges.into_iter().peekable();
9336 if ranges.peek().is_some() {
9337 self.display_map
9338 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9339 if auto_scroll {
9340 self.request_autoscroll(Autoscroll::fit(), cx);
9341 }
9342
9343 for buffer in buffers_affected.into_values() {
9344 self.sync_expanded_diff_hunks(buffer, cx);
9345 }
9346
9347 cx.notify();
9348 self.scrollbar_marker_state.dirty = true;
9349 }
9350 }
9351
9352 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9353 if hovered != self.gutter_hovered {
9354 self.gutter_hovered = hovered;
9355 cx.notify();
9356 }
9357 }
9358
9359 pub fn insert_blocks(
9360 &mut self,
9361 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9362 autoscroll: Option<Autoscroll>,
9363 cx: &mut ViewContext<Self>,
9364 ) -> Vec<BlockId> {
9365 let blocks = self
9366 .display_map
9367 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9368 if let Some(autoscroll) = autoscroll {
9369 self.request_autoscroll(autoscroll, cx);
9370 }
9371 blocks
9372 }
9373
9374 pub fn replace_blocks(
9375 &mut self,
9376 blocks: HashMap<BlockId, RenderBlock>,
9377 autoscroll: Option<Autoscroll>,
9378 cx: &mut ViewContext<Self>,
9379 ) {
9380 self.display_map
9381 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9382 if let Some(autoscroll) = autoscroll {
9383 self.request_autoscroll(autoscroll, cx);
9384 }
9385 }
9386
9387 pub fn remove_blocks(
9388 &mut self,
9389 block_ids: HashSet<BlockId>,
9390 autoscroll: Option<Autoscroll>,
9391 cx: &mut ViewContext<Self>,
9392 ) {
9393 self.display_map.update(cx, |display_map, cx| {
9394 display_map.remove_blocks(block_ids, cx)
9395 });
9396 if let Some(autoscroll) = autoscroll {
9397 self.request_autoscroll(autoscroll, cx);
9398 }
9399 }
9400
9401 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9402 self.display_map
9403 .update(cx, |map, cx| map.snapshot(cx))
9404 .longest_row()
9405 }
9406
9407 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9408 self.display_map
9409 .update(cx, |map, cx| map.snapshot(cx))
9410 .max_point()
9411 }
9412
9413 pub fn text(&self, cx: &AppContext) -> String {
9414 self.buffer.read(cx).read(cx).text()
9415 }
9416
9417 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9418 let text = self.text(cx);
9419 let text = text.trim();
9420
9421 if text.is_empty() {
9422 return None;
9423 }
9424
9425 Some(text.to_string())
9426 }
9427
9428 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9429 self.transact(cx, |this, cx| {
9430 this.buffer
9431 .read(cx)
9432 .as_singleton()
9433 .expect("you can only call set_text on editors for singleton buffers")
9434 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9435 });
9436 }
9437
9438 pub fn display_text(&self, cx: &mut AppContext) -> String {
9439 self.display_map
9440 .update(cx, |map, cx| map.snapshot(cx))
9441 .text()
9442 }
9443
9444 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9445 let mut wrap_guides = smallvec::smallvec![];
9446
9447 if self.show_wrap_guides == Some(false) {
9448 return wrap_guides;
9449 }
9450
9451 let settings = self.buffer.read(cx).settings_at(0, cx);
9452 if settings.show_wrap_guides {
9453 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9454 wrap_guides.push((soft_wrap as usize, true));
9455 }
9456 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9457 }
9458
9459 wrap_guides
9460 }
9461
9462 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9463 let settings = self.buffer.read(cx).settings_at(0, cx);
9464 let mode = self
9465 .soft_wrap_mode_override
9466 .unwrap_or_else(|| settings.soft_wrap);
9467 match mode {
9468 language_settings::SoftWrap::None => SoftWrap::None,
9469 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9470 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9471 language_settings::SoftWrap::PreferredLineLength => {
9472 SoftWrap::Column(settings.preferred_line_length)
9473 }
9474 }
9475 }
9476
9477 pub fn set_soft_wrap_mode(
9478 &mut self,
9479 mode: language_settings::SoftWrap,
9480 cx: &mut ViewContext<Self>,
9481 ) {
9482 self.soft_wrap_mode_override = Some(mode);
9483 cx.notify();
9484 }
9485
9486 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9487 let rem_size = cx.rem_size();
9488 self.display_map.update(cx, |map, cx| {
9489 map.set_font(
9490 style.text.font(),
9491 style.text.font_size.to_pixels(rem_size),
9492 cx,
9493 )
9494 });
9495 self.style = Some(style);
9496 }
9497
9498 pub fn style(&self) -> Option<&EditorStyle> {
9499 self.style.as_ref()
9500 }
9501
9502 // Called by the element. This method is not designed to be called outside of the editor
9503 // element's layout code because it does not notify when rewrapping is computed synchronously.
9504 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9505 self.display_map
9506 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9507 }
9508
9509 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9510 if self.soft_wrap_mode_override.is_some() {
9511 self.soft_wrap_mode_override.take();
9512 } else {
9513 let soft_wrap = match self.soft_wrap_mode(cx) {
9514 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9515 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9516 language_settings::SoftWrap::PreferLine
9517 }
9518 };
9519 self.soft_wrap_mode_override = Some(soft_wrap);
9520 }
9521 cx.notify();
9522 }
9523
9524 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9525 let mut editor_settings = EditorSettings::get_global(cx).clone();
9526 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9527 EditorSettings::override_global(editor_settings, cx);
9528 }
9529
9530 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9531 self.show_gutter = show_gutter;
9532 cx.notify();
9533 }
9534
9535 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9536 self.show_wrap_guides = Some(show_gutter);
9537 cx.notify();
9538 }
9539
9540 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9541 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9542 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9543 cx.reveal_path(&file.abs_path(cx));
9544 }
9545 }
9546 }
9547
9548 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9549 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9550 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9551 if let Some(path) = file.abs_path(cx).to_str() {
9552 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9553 }
9554 }
9555 }
9556 }
9557
9558 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9559 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9560 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9561 if let Some(path) = file.path().to_str() {
9562 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9563 }
9564 }
9565 }
9566 }
9567
9568 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9569 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9570
9571 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9572 self.start_git_blame(true, cx);
9573 }
9574
9575 cx.notify();
9576 }
9577
9578 pub fn toggle_git_blame_inline(
9579 &mut self,
9580 _: &ToggleGitBlameInline,
9581 cx: &mut ViewContext<Self>,
9582 ) {
9583 self.toggle_git_blame_inline_internal(true, cx);
9584 cx.notify();
9585 }
9586
9587 pub fn git_blame_inline_enabled(&self) -> bool {
9588 self.git_blame_inline_enabled
9589 }
9590
9591 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9592 if let Some(project) = self.project.as_ref() {
9593 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9594 return;
9595 };
9596
9597 if buffer.read(cx).file().is_none() {
9598 return;
9599 }
9600
9601 let focused = self.focus_handle(cx).contains_focused(cx);
9602
9603 let project = project.clone();
9604 let blame =
9605 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9606 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9607 self.blame = Some(blame);
9608 }
9609 }
9610
9611 fn toggle_git_blame_inline_internal(
9612 &mut self,
9613 user_triggered: bool,
9614 cx: &mut ViewContext<Self>,
9615 ) {
9616 if self.git_blame_inline_enabled {
9617 self.git_blame_inline_enabled = false;
9618 self.show_git_blame_inline = false;
9619 self.show_git_blame_inline_delay_task.take();
9620 } else {
9621 self.git_blame_inline_enabled = true;
9622 self.start_git_blame_inline(user_triggered, cx);
9623 }
9624
9625 cx.notify();
9626 }
9627
9628 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9629 self.start_git_blame(user_triggered, cx);
9630
9631 if ProjectSettings::get_global(cx)
9632 .git
9633 .inline_blame_delay()
9634 .is_some()
9635 {
9636 self.start_inline_blame_timer(cx);
9637 } else {
9638 self.show_git_blame_inline = true
9639 }
9640 }
9641
9642 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9643 self.blame.as_ref()
9644 }
9645
9646 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9647 self.show_git_blame_gutter && self.has_blame_entries(cx)
9648 }
9649
9650 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9651 self.show_git_blame_inline
9652 && self.focus_handle.is_focused(cx)
9653 && !self.newest_selection_head_on_empty_line(cx)
9654 && self.has_blame_entries(cx)
9655 }
9656
9657 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9658 self.blame()
9659 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9660 }
9661
9662 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9663 let cursor_anchor = self.selections.newest_anchor().head();
9664
9665 let snapshot = self.buffer.read(cx).snapshot(cx);
9666 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9667
9668 snapshot.line_len(buffer_row) == 0
9669 }
9670
9671 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9672 let (path, repo) = maybe!({
9673 let project_handle = self.project.as_ref()?.clone();
9674 let project = project_handle.read(cx);
9675 let buffer = self.buffer().read(cx).as_singleton()?;
9676 let path = buffer
9677 .read(cx)
9678 .file()?
9679 .as_local()?
9680 .path()
9681 .to_str()?
9682 .to_string();
9683 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9684 Some((path, repo))
9685 })
9686 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9687
9688 const REMOTE_NAME: &str = "origin";
9689 let origin_url = repo
9690 .lock()
9691 .remote_url(REMOTE_NAME)
9692 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9693 let sha = repo
9694 .lock()
9695 .head_sha()
9696 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9697 let selections = self.selections.all::<Point>(cx);
9698 let selection = selections.iter().peekable().next();
9699
9700 let (provider, remote) =
9701 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9702 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9703
9704 Ok(provider.build_permalink(
9705 remote,
9706 BuildPermalinkParams {
9707 sha: &sha,
9708 path: &path,
9709 selection: selection.map(|selection| {
9710 let range = selection.range();
9711 let start = range.start.row;
9712 let end = range.end.row;
9713 start..end
9714 }),
9715 },
9716 ))
9717 }
9718
9719 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9720 let permalink = self.get_permalink_to_line(cx);
9721
9722 match permalink {
9723 Ok(permalink) => {
9724 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9725 }
9726 Err(err) => {
9727 let message = format!("Failed to copy permalink: {err}");
9728
9729 Err::<(), anyhow::Error>(err).log_err();
9730
9731 if let Some(workspace) = self.workspace() {
9732 workspace.update(cx, |workspace, cx| {
9733 struct CopyPermalinkToLine;
9734
9735 workspace.show_toast(
9736 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9737 cx,
9738 )
9739 })
9740 }
9741 }
9742 }
9743 }
9744
9745 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9746 let permalink = self.get_permalink_to_line(cx);
9747
9748 match permalink {
9749 Ok(permalink) => {
9750 cx.open_url(permalink.as_ref());
9751 }
9752 Err(err) => {
9753 let message = format!("Failed to open permalink: {err}");
9754
9755 Err::<(), anyhow::Error>(err).log_err();
9756
9757 if let Some(workspace) = self.workspace() {
9758 workspace.update(cx, |workspace, cx| {
9759 struct OpenPermalinkToLine;
9760
9761 workspace.show_toast(
9762 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9763 cx,
9764 )
9765 })
9766 }
9767 }
9768 }
9769 }
9770
9771 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9772 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9773 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9774 pub fn highlight_rows<T: 'static>(
9775 &mut self,
9776 rows: RangeInclusive<Anchor>,
9777 color: Option<Hsla>,
9778 cx: &mut ViewContext<Self>,
9779 ) {
9780 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9781 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9782 hash_map::Entry::Occupied(o) => {
9783 let row_highlights = o.into_mut();
9784 let existing_highlight_index =
9785 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9786 highlight_range
9787 .start()
9788 .cmp(&rows.start(), &multi_buffer_snapshot)
9789 .then(
9790 highlight_range
9791 .end()
9792 .cmp(&rows.end(), &multi_buffer_snapshot),
9793 )
9794 });
9795 match color {
9796 Some(color) => {
9797 let insert_index = match existing_highlight_index {
9798 Ok(i) => i,
9799 Err(i) => i,
9800 };
9801 row_highlights.insert(
9802 insert_index,
9803 (post_inc(&mut self.highlight_order), rows, Some(color)),
9804 );
9805 }
9806 None => match existing_highlight_index {
9807 Ok(i) => {
9808 row_highlights.remove(i);
9809 }
9810 Err(i) => {
9811 row_highlights
9812 .insert(i, (post_inc(&mut self.highlight_order), rows, None));
9813 }
9814 },
9815 }
9816 }
9817 hash_map::Entry::Vacant(v) => {
9818 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9819 }
9820 }
9821 }
9822
9823 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9824 pub fn clear_row_highlights<T: 'static>(&mut self) {
9825 self.highlighted_rows.remove(&TypeId::of::<T>());
9826 }
9827
9828 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9829 pub fn highlighted_rows<T: 'static>(
9830 &self,
9831 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9832 Some(
9833 self.highlighted_rows
9834 .get(&TypeId::of::<T>())?
9835 .iter()
9836 .map(|(_, range, color)| (range, color.as_ref())),
9837 )
9838 }
9839
9840 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9841 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9842 /// Allows to ignore certain kinds of highlights.
9843 pub fn highlighted_display_rows(
9844 &mut self,
9845 exclude_highlights: HashSet<TypeId>,
9846 cx: &mut WindowContext,
9847 ) -> BTreeMap<DisplayRow, Hsla> {
9848 let snapshot = self.snapshot(cx);
9849 let mut used_highlight_orders = HashMap::default();
9850 self.highlighted_rows
9851 .iter()
9852 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9853 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9854 .fold(
9855 BTreeMap::<DisplayRow, Hsla>::new(),
9856 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9857 let start_row = anchor_range.start().to_display_point(&snapshot).row();
9858 let end_row = anchor_range.end().to_display_point(&snapshot).row();
9859 for row in start_row.0..=end_row.0 {
9860 let used_index =
9861 used_highlight_orders.entry(row).or_insert(*highlight_order);
9862 if highlight_order >= used_index {
9863 *used_index = *highlight_order;
9864 match hsla {
9865 Some(hsla) => {
9866 unique_rows.insert(DisplayRow(row), *hsla);
9867 }
9868 None => {
9869 unique_rows.remove(&DisplayRow(row));
9870 }
9871 }
9872 }
9873 }
9874 unique_rows
9875 },
9876 )
9877 }
9878
9879 pub fn set_search_within_ranges(
9880 &mut self,
9881 ranges: &[Range<Anchor>],
9882 cx: &mut ViewContext<Self>,
9883 ) {
9884 self.highlight_background::<SearchWithinRange>(
9885 ranges,
9886 |colors| colors.editor_document_highlight_read_background,
9887 cx,
9888 )
9889 }
9890
9891 pub fn highlight_background<T: 'static>(
9892 &mut self,
9893 ranges: &[Range<Anchor>],
9894 color_fetcher: fn(&ThemeColors) -> Hsla,
9895 cx: &mut ViewContext<Self>,
9896 ) {
9897 let snapshot = self.snapshot(cx);
9898 // this is to try and catch a panic sooner
9899 for range in ranges {
9900 snapshot
9901 .buffer_snapshot
9902 .summary_for_anchor::<usize>(&range.start);
9903 snapshot
9904 .buffer_snapshot
9905 .summary_for_anchor::<usize>(&range.end);
9906 }
9907
9908 self.background_highlights
9909 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9910 self.scrollbar_marker_state.dirty = true;
9911 cx.notify();
9912 }
9913
9914 pub fn clear_background_highlights<T: 'static>(
9915 &mut self,
9916 cx: &mut ViewContext<Self>,
9917 ) -> Option<BackgroundHighlight> {
9918 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9919 if !text_highlights.1.is_empty() {
9920 self.scrollbar_marker_state.dirty = true;
9921 cx.notify();
9922 }
9923 Some(text_highlights)
9924 }
9925
9926 #[cfg(feature = "test-support")]
9927 pub fn all_text_background_highlights(
9928 &mut self,
9929 cx: &mut ViewContext<Self>,
9930 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9931 let snapshot = self.snapshot(cx);
9932 let buffer = &snapshot.buffer_snapshot;
9933 let start = buffer.anchor_before(0);
9934 let end = buffer.anchor_after(buffer.len());
9935 let theme = cx.theme().colors();
9936 self.background_highlights_in_range(start..end, &snapshot, theme)
9937 }
9938
9939 fn document_highlights_for_position<'a>(
9940 &'a self,
9941 position: Anchor,
9942 buffer: &'a MultiBufferSnapshot,
9943 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9944 let read_highlights = self
9945 .background_highlights
9946 .get(&TypeId::of::<DocumentHighlightRead>())
9947 .map(|h| &h.1);
9948 let write_highlights = self
9949 .background_highlights
9950 .get(&TypeId::of::<DocumentHighlightWrite>())
9951 .map(|h| &h.1);
9952 let left_position = position.bias_left(buffer);
9953 let right_position = position.bias_right(buffer);
9954 read_highlights
9955 .into_iter()
9956 .chain(write_highlights)
9957 .flat_map(move |ranges| {
9958 let start_ix = match ranges.binary_search_by(|probe| {
9959 let cmp = probe.end.cmp(&left_position, buffer);
9960 if cmp.is_ge() {
9961 Ordering::Greater
9962 } else {
9963 Ordering::Less
9964 }
9965 }) {
9966 Ok(i) | Err(i) => i,
9967 };
9968
9969 ranges[start_ix..]
9970 .iter()
9971 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9972 })
9973 }
9974
9975 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9976 self.background_highlights
9977 .get(&TypeId::of::<T>())
9978 .map_or(false, |(_, highlights)| !highlights.is_empty())
9979 }
9980
9981 pub fn background_highlights_in_range(
9982 &self,
9983 search_range: Range<Anchor>,
9984 display_snapshot: &DisplaySnapshot,
9985 theme: &ThemeColors,
9986 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9987 let mut results = Vec::new();
9988 for (color_fetcher, ranges) in self.background_highlights.values() {
9989 let color = color_fetcher(theme);
9990 let start_ix = match ranges.binary_search_by(|probe| {
9991 let cmp = probe
9992 .end
9993 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9994 if cmp.is_gt() {
9995 Ordering::Greater
9996 } else {
9997 Ordering::Less
9998 }
9999 }) {
10000 Ok(i) | Err(i) => i,
10001 };
10002 for range in &ranges[start_ix..] {
10003 if range
10004 .start
10005 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10006 .is_ge()
10007 {
10008 break;
10009 }
10010
10011 let start = range.start.to_display_point(&display_snapshot);
10012 let end = range.end.to_display_point(&display_snapshot);
10013 results.push((start..end, color))
10014 }
10015 }
10016 results
10017 }
10018
10019 pub fn background_highlight_row_ranges<T: 'static>(
10020 &self,
10021 search_range: Range<Anchor>,
10022 display_snapshot: &DisplaySnapshot,
10023 count: usize,
10024 ) -> Vec<RangeInclusive<DisplayPoint>> {
10025 let mut results = Vec::new();
10026 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10027 return vec![];
10028 };
10029
10030 let start_ix = match ranges.binary_search_by(|probe| {
10031 let cmp = probe
10032 .end
10033 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10034 if cmp.is_gt() {
10035 Ordering::Greater
10036 } else {
10037 Ordering::Less
10038 }
10039 }) {
10040 Ok(i) | Err(i) => i,
10041 };
10042 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10043 if let (Some(start_display), Some(end_display)) = (start, end) {
10044 results.push(
10045 start_display.to_display_point(display_snapshot)
10046 ..=end_display.to_display_point(display_snapshot),
10047 );
10048 }
10049 };
10050 let mut start_row: Option<Point> = None;
10051 let mut end_row: Option<Point> = None;
10052 if ranges.len() > count {
10053 return Vec::new();
10054 }
10055 for range in &ranges[start_ix..] {
10056 if range
10057 .start
10058 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10059 .is_ge()
10060 {
10061 break;
10062 }
10063 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10064 if let Some(current_row) = &end_row {
10065 if end.row == current_row.row {
10066 continue;
10067 }
10068 }
10069 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10070 if start_row.is_none() {
10071 assert_eq!(end_row, None);
10072 start_row = Some(start);
10073 end_row = Some(end);
10074 continue;
10075 }
10076 if let Some(current_end) = end_row.as_mut() {
10077 if start.row > current_end.row + 1 {
10078 push_region(start_row, end_row);
10079 start_row = Some(start);
10080 end_row = Some(end);
10081 } else {
10082 // Merge two hunks.
10083 *current_end = end;
10084 }
10085 } else {
10086 unreachable!();
10087 }
10088 }
10089 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10090 push_region(start_row, end_row);
10091 results
10092 }
10093
10094 /// Get the text ranges corresponding to the redaction query
10095 pub fn redacted_ranges(
10096 &self,
10097 search_range: Range<Anchor>,
10098 display_snapshot: &DisplaySnapshot,
10099 cx: &WindowContext,
10100 ) -> Vec<Range<DisplayPoint>> {
10101 display_snapshot
10102 .buffer_snapshot
10103 .redacted_ranges(search_range, |file| {
10104 if let Some(file) = file {
10105 file.is_private()
10106 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10107 } else {
10108 false
10109 }
10110 })
10111 .map(|range| {
10112 range.start.to_display_point(display_snapshot)
10113 ..range.end.to_display_point(display_snapshot)
10114 })
10115 .collect()
10116 }
10117
10118 pub fn highlight_text<T: 'static>(
10119 &mut self,
10120 ranges: Vec<Range<Anchor>>,
10121 style: HighlightStyle,
10122 cx: &mut ViewContext<Self>,
10123 ) {
10124 self.display_map.update(cx, |map, _| {
10125 map.highlight_text(TypeId::of::<T>(), ranges, style)
10126 });
10127 cx.notify();
10128 }
10129
10130 pub(crate) fn highlight_inlays<T: 'static>(
10131 &mut self,
10132 highlights: Vec<InlayHighlight>,
10133 style: HighlightStyle,
10134 cx: &mut ViewContext<Self>,
10135 ) {
10136 self.display_map.update(cx, |map, _| {
10137 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10138 });
10139 cx.notify();
10140 }
10141
10142 pub fn text_highlights<'a, T: 'static>(
10143 &'a self,
10144 cx: &'a AppContext,
10145 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10146 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10147 }
10148
10149 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10150 let cleared = self
10151 .display_map
10152 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10153 if cleared {
10154 cx.notify();
10155 }
10156 }
10157
10158 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10159 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10160 && self.focus_handle.is_focused(cx)
10161 }
10162
10163 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10164 cx.notify();
10165 }
10166
10167 fn on_buffer_event(
10168 &mut self,
10169 multibuffer: Model<MultiBuffer>,
10170 event: &multi_buffer::Event,
10171 cx: &mut ViewContext<Self>,
10172 ) {
10173 match event {
10174 multi_buffer::Event::Edited {
10175 singleton_buffer_edited,
10176 } => {
10177 self.scrollbar_marker_state.dirty = true;
10178 self.refresh_active_diagnostics(cx);
10179 self.refresh_code_actions(cx);
10180 if self.has_active_inline_completion(cx) {
10181 self.update_visible_inline_completion(cx);
10182 }
10183 cx.emit(EditorEvent::BufferEdited);
10184 cx.emit(SearchEvent::MatchesInvalidated);
10185
10186 if *singleton_buffer_edited {
10187 if let Some(project) = &self.project {
10188 let project = project.read(cx);
10189 let languages_affected = multibuffer
10190 .read(cx)
10191 .all_buffers()
10192 .into_iter()
10193 .filter_map(|buffer| {
10194 let buffer = buffer.read(cx);
10195 let language = buffer.language()?;
10196 if project.is_local()
10197 && project.language_servers_for_buffer(buffer, cx).count() == 0
10198 {
10199 None
10200 } else {
10201 Some(language)
10202 }
10203 })
10204 .cloned()
10205 .collect::<HashSet<_>>();
10206 if !languages_affected.is_empty() {
10207 self.refresh_inlay_hints(
10208 InlayHintRefreshReason::BufferEdited(languages_affected),
10209 cx,
10210 );
10211 }
10212 }
10213 }
10214
10215 let Some(project) = &self.project else { return };
10216 let telemetry = project.read(cx).client().telemetry().clone();
10217 telemetry.log_edit_event("editor");
10218 }
10219 multi_buffer::Event::ExcerptsAdded {
10220 buffer,
10221 predecessor,
10222 excerpts,
10223 } => {
10224 self.tasks_update_task = Some(self.refresh_runnables(cx));
10225 cx.emit(EditorEvent::ExcerptsAdded {
10226 buffer: buffer.clone(),
10227 predecessor: *predecessor,
10228 excerpts: excerpts.clone(),
10229 });
10230 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10231 }
10232 multi_buffer::Event::ExcerptsRemoved { ids } => {
10233 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10234 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10235 }
10236 multi_buffer::Event::Reparsed => {
10237 self.tasks_update_task = Some(self.refresh_runnables(cx));
10238
10239 cx.emit(EditorEvent::Reparsed);
10240 }
10241 multi_buffer::Event::LanguageChanged => {
10242 cx.emit(EditorEvent::Reparsed);
10243 cx.notify();
10244 }
10245 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10246 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10247 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10248 cx.emit(EditorEvent::TitleChanged)
10249 }
10250 multi_buffer::Event::DiffBaseChanged => {
10251 self.scrollbar_marker_state.dirty = true;
10252 cx.emit(EditorEvent::DiffBaseChanged);
10253 cx.notify();
10254 }
10255 multi_buffer::Event::DiffUpdated { buffer } => {
10256 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10257 cx.notify();
10258 }
10259 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10260 multi_buffer::Event::DiagnosticsUpdated => {
10261 self.refresh_active_diagnostics(cx);
10262 self.scrollbar_marker_state.dirty = true;
10263 cx.notify();
10264 }
10265 _ => {}
10266 };
10267 }
10268
10269 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10270 cx.notify();
10271 }
10272
10273 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10274 self.refresh_inline_completion(true, cx);
10275 self.refresh_inlay_hints(
10276 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10277 self.selections.newest_anchor().head(),
10278 &self.buffer.read(cx).snapshot(cx),
10279 cx,
10280 )),
10281 cx,
10282 );
10283 let editor_settings = EditorSettings::get_global(cx);
10284 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10285 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10286
10287 if self.mode == EditorMode::Full {
10288 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10289 if self.git_blame_inline_enabled != inline_blame_enabled {
10290 self.toggle_git_blame_inline_internal(false, cx);
10291 }
10292 }
10293
10294 cx.notify();
10295 }
10296
10297 pub fn set_searchable(&mut self, searchable: bool) {
10298 self.searchable = searchable;
10299 }
10300
10301 pub fn searchable(&self) -> bool {
10302 self.searchable
10303 }
10304
10305 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10306 self.open_excerpts_common(true, cx)
10307 }
10308
10309 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10310 self.open_excerpts_common(false, cx)
10311 }
10312
10313 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10314 let buffer = self.buffer.read(cx);
10315 if buffer.is_singleton() {
10316 cx.propagate();
10317 return;
10318 }
10319
10320 let Some(workspace) = self.workspace() else {
10321 cx.propagate();
10322 return;
10323 };
10324
10325 let mut new_selections_by_buffer = HashMap::default();
10326 for selection in self.selections.all::<usize>(cx) {
10327 for (buffer, mut range, _) in
10328 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10329 {
10330 if selection.reversed {
10331 mem::swap(&mut range.start, &mut range.end);
10332 }
10333 new_selections_by_buffer
10334 .entry(buffer)
10335 .or_insert(Vec::new())
10336 .push(range)
10337 }
10338 }
10339
10340 // We defer the pane interaction because we ourselves are a workspace item
10341 // and activating a new item causes the pane to call a method on us reentrantly,
10342 // which panics if we're on the stack.
10343 cx.window_context().defer(move |cx| {
10344 workspace.update(cx, |workspace, cx| {
10345 let pane = if split {
10346 workspace.adjacent_pane(cx)
10347 } else {
10348 workspace.active_pane().clone()
10349 };
10350
10351 for (buffer, ranges) in new_selections_by_buffer {
10352 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10353 editor.update(cx, |editor, cx| {
10354 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10355 s.select_ranges(ranges);
10356 });
10357 });
10358 }
10359 })
10360 });
10361 }
10362
10363 fn jump(
10364 &mut self,
10365 path: ProjectPath,
10366 position: Point,
10367 anchor: language::Anchor,
10368 offset_from_top: u32,
10369 cx: &mut ViewContext<Self>,
10370 ) {
10371 let workspace = self.workspace();
10372 cx.spawn(|_, mut cx| async move {
10373 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10374 let editor = workspace.update(&mut cx, |workspace, cx| {
10375 // Reset the preview item id before opening the new item
10376 workspace.active_pane().update(cx, |pane, cx| {
10377 pane.set_preview_item_id(None, cx);
10378 });
10379 workspace.open_path_preview(path, None, true, true, cx)
10380 })?;
10381 let editor = editor
10382 .await?
10383 .downcast::<Editor>()
10384 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10385 .downgrade();
10386 editor.update(&mut cx, |editor, cx| {
10387 let buffer = editor
10388 .buffer()
10389 .read(cx)
10390 .as_singleton()
10391 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10392 let buffer = buffer.read(cx);
10393 let cursor = if buffer.can_resolve(&anchor) {
10394 language::ToPoint::to_point(&anchor, buffer)
10395 } else {
10396 buffer.clip_point(position, Bias::Left)
10397 };
10398
10399 let nav_history = editor.nav_history.take();
10400 editor.change_selections(
10401 Some(Autoscroll::top_relative(offset_from_top as usize)),
10402 cx,
10403 |s| {
10404 s.select_ranges([cursor..cursor]);
10405 },
10406 );
10407 editor.nav_history = nav_history;
10408
10409 anyhow::Ok(())
10410 })??;
10411
10412 anyhow::Ok(())
10413 })
10414 .detach_and_log_err(cx);
10415 }
10416
10417 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10418 let snapshot = self.buffer.read(cx).read(cx);
10419 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10420 Some(
10421 ranges
10422 .iter()
10423 .map(move |range| {
10424 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10425 })
10426 .collect(),
10427 )
10428 }
10429
10430 fn selection_replacement_ranges(
10431 &self,
10432 range: Range<OffsetUtf16>,
10433 cx: &AppContext,
10434 ) -> Vec<Range<OffsetUtf16>> {
10435 let selections = self.selections.all::<OffsetUtf16>(cx);
10436 let newest_selection = selections
10437 .iter()
10438 .max_by_key(|selection| selection.id)
10439 .unwrap();
10440 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10441 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10442 let snapshot = self.buffer.read(cx).read(cx);
10443 selections
10444 .into_iter()
10445 .map(|mut selection| {
10446 selection.start.0 =
10447 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10448 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10449 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10450 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10451 })
10452 .collect()
10453 }
10454
10455 fn report_editor_event(
10456 &self,
10457 operation: &'static str,
10458 file_extension: Option<String>,
10459 cx: &AppContext,
10460 ) {
10461 if cfg!(any(test, feature = "test-support")) {
10462 return;
10463 }
10464
10465 let Some(project) = &self.project else { return };
10466
10467 // If None, we are in a file without an extension
10468 let file = self
10469 .buffer
10470 .read(cx)
10471 .as_singleton()
10472 .and_then(|b| b.read(cx).file());
10473 let file_extension = file_extension.or(file
10474 .as_ref()
10475 .and_then(|file| Path::new(file.file_name(cx)).extension())
10476 .and_then(|e| e.to_str())
10477 .map(|a| a.to_string()));
10478
10479 let vim_mode = cx
10480 .global::<SettingsStore>()
10481 .raw_user_settings()
10482 .get("vim_mode")
10483 == Some(&serde_json::Value::Bool(true));
10484
10485 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10486 == language::language_settings::InlineCompletionProvider::Copilot;
10487 let copilot_enabled_for_language = self
10488 .buffer
10489 .read(cx)
10490 .settings_at(0, cx)
10491 .show_inline_completions;
10492
10493 let telemetry = project.read(cx).client().telemetry().clone();
10494 telemetry.report_editor_event(
10495 file_extension,
10496 vim_mode,
10497 operation,
10498 copilot_enabled,
10499 copilot_enabled_for_language,
10500 )
10501 }
10502
10503 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10504 /// with each line being an array of {text, highlight} objects.
10505 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10506 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10507 return;
10508 };
10509
10510 #[derive(Serialize)]
10511 struct Chunk<'a> {
10512 text: String,
10513 highlight: Option<&'a str>,
10514 }
10515
10516 let snapshot = buffer.read(cx).snapshot();
10517 let range = self
10518 .selected_text_range(cx)
10519 .and_then(|selected_range| {
10520 if selected_range.is_empty() {
10521 None
10522 } else {
10523 Some(selected_range)
10524 }
10525 })
10526 .unwrap_or_else(|| 0..snapshot.len());
10527
10528 let chunks = snapshot.chunks(range, true);
10529 let mut lines = Vec::new();
10530 let mut line: VecDeque<Chunk> = VecDeque::new();
10531
10532 let Some(style) = self.style.as_ref() else {
10533 return;
10534 };
10535
10536 for chunk in chunks {
10537 let highlight = chunk
10538 .syntax_highlight_id
10539 .and_then(|id| id.name(&style.syntax));
10540 let mut chunk_lines = chunk.text.split('\n').peekable();
10541 while let Some(text) = chunk_lines.next() {
10542 let mut merged_with_last_token = false;
10543 if let Some(last_token) = line.back_mut() {
10544 if last_token.highlight == highlight {
10545 last_token.text.push_str(text);
10546 merged_with_last_token = true;
10547 }
10548 }
10549
10550 if !merged_with_last_token {
10551 line.push_back(Chunk {
10552 text: text.into(),
10553 highlight,
10554 });
10555 }
10556
10557 if chunk_lines.peek().is_some() {
10558 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10559 line.pop_front();
10560 }
10561 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10562 line.pop_back();
10563 }
10564
10565 lines.push(mem::take(&mut line));
10566 }
10567 }
10568 }
10569
10570 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10571 return;
10572 };
10573 cx.write_to_clipboard(ClipboardItem::new(lines));
10574 }
10575
10576 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10577 &self.inlay_hint_cache
10578 }
10579
10580 pub fn replay_insert_event(
10581 &mut self,
10582 text: &str,
10583 relative_utf16_range: Option<Range<isize>>,
10584 cx: &mut ViewContext<Self>,
10585 ) {
10586 if !self.input_enabled {
10587 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10588 return;
10589 }
10590 if let Some(relative_utf16_range) = relative_utf16_range {
10591 let selections = self.selections.all::<OffsetUtf16>(cx);
10592 self.change_selections(None, cx, |s| {
10593 let new_ranges = selections.into_iter().map(|range| {
10594 let start = OffsetUtf16(
10595 range
10596 .head()
10597 .0
10598 .saturating_add_signed(relative_utf16_range.start),
10599 );
10600 let end = OffsetUtf16(
10601 range
10602 .head()
10603 .0
10604 .saturating_add_signed(relative_utf16_range.end),
10605 );
10606 start..end
10607 });
10608 s.select_ranges(new_ranges);
10609 });
10610 }
10611
10612 self.handle_input(text, cx);
10613 }
10614
10615 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10616 let Some(project) = self.project.as_ref() else {
10617 return false;
10618 };
10619 let project = project.read(cx);
10620
10621 let mut supports = false;
10622 self.buffer().read(cx).for_each_buffer(|buffer| {
10623 if !supports {
10624 supports = project
10625 .language_servers_for_buffer(buffer.read(cx), cx)
10626 .any(
10627 |(_, server)| match server.capabilities().inlay_hint_provider {
10628 Some(lsp::OneOf::Left(enabled)) => enabled,
10629 Some(lsp::OneOf::Right(_)) => true,
10630 None => false,
10631 },
10632 )
10633 }
10634 });
10635 supports
10636 }
10637
10638 pub fn focus(&self, cx: &mut WindowContext) {
10639 cx.focus(&self.focus_handle)
10640 }
10641
10642 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10643 self.focus_handle.is_focused(cx)
10644 }
10645
10646 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10647 cx.emit(EditorEvent::Focused);
10648
10649 if let Some(rename) = self.pending_rename.as_ref() {
10650 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10651 cx.focus(&rename_editor_focus_handle);
10652 } else {
10653 if let Some(blame) = self.blame.as_ref() {
10654 blame.update(cx, GitBlame::focus)
10655 }
10656
10657 self.blink_manager.update(cx, BlinkManager::enable);
10658 self.show_cursor_names(cx);
10659 self.buffer.update(cx, |buffer, cx| {
10660 buffer.finalize_last_transaction(cx);
10661 if self.leader_peer_id.is_none() {
10662 buffer.set_active_selections(
10663 &self.selections.disjoint_anchors(),
10664 self.selections.line_mode,
10665 self.cursor_shape,
10666 cx,
10667 );
10668 }
10669 });
10670 }
10671 }
10672
10673 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10674 self.blink_manager.update(cx, BlinkManager::disable);
10675 self.buffer
10676 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10677
10678 if let Some(blame) = self.blame.as_ref() {
10679 blame.update(cx, GitBlame::blur)
10680 }
10681 self.hide_context_menu(cx);
10682 hide_hover(self, cx);
10683 cx.emit(EditorEvent::Blurred);
10684 cx.notify();
10685 }
10686
10687 pub fn register_action<A: Action>(
10688 &mut self,
10689 listener: impl Fn(&A, &mut WindowContext) + 'static,
10690 ) -> &mut Self {
10691 let listener = Arc::new(listener);
10692
10693 self.editor_actions.push(Box::new(move |cx| {
10694 let _view = cx.view().clone();
10695 let cx = cx.window_context();
10696 let listener = listener.clone();
10697 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10698 let action = action.downcast_ref().unwrap();
10699 if phase == DispatchPhase::Bubble {
10700 listener(action, cx)
10701 }
10702 })
10703 }));
10704 self
10705 }
10706}
10707
10708fn hunks_for_selections(
10709 multi_buffer_snapshot: &MultiBufferSnapshot,
10710 selections: &[Selection<Anchor>],
10711) -> Vec<DiffHunk<MultiBufferRow>> {
10712 let mut hunks = Vec::with_capacity(selections.len());
10713 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10714 HashMap::default();
10715 let buffer_rows_for_selections = selections.iter().map(|selection| {
10716 let head = selection.head();
10717 let tail = selection.tail();
10718 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
10719 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
10720 if start > end {
10721 end..start
10722 } else {
10723 start..end
10724 }
10725 });
10726
10727 for selected_multi_buffer_rows in buffer_rows_for_selections {
10728 let query_rows =
10729 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
10730 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10731 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10732 // when the caret is just above or just below the deleted hunk.
10733 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
10734 let related_to_selection = if allow_adjacent {
10735 hunk.associated_range.overlaps(&query_rows)
10736 || hunk.associated_range.start == query_rows.end
10737 || hunk.associated_range.end == query_rows.start
10738 } else {
10739 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10740 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10741 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10742 || selected_multi_buffer_rows.end == hunk.associated_range.start
10743 };
10744 if related_to_selection {
10745 if !processed_buffer_rows
10746 .entry(hunk.buffer_id)
10747 .or_default()
10748 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10749 {
10750 continue;
10751 }
10752 hunks.push(hunk);
10753 }
10754 }
10755 }
10756
10757 hunks
10758}
10759
10760pub trait CollaborationHub {
10761 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10762 fn user_participant_indices<'a>(
10763 &self,
10764 cx: &'a AppContext,
10765 ) -> &'a HashMap<u64, ParticipantIndex>;
10766 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10767}
10768
10769impl CollaborationHub for Model<Project> {
10770 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10771 self.read(cx).collaborators()
10772 }
10773
10774 fn user_participant_indices<'a>(
10775 &self,
10776 cx: &'a AppContext,
10777 ) -> &'a HashMap<u64, ParticipantIndex> {
10778 self.read(cx).user_store().read(cx).participant_indices()
10779 }
10780
10781 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10782 let this = self.read(cx);
10783 let user_ids = this.collaborators().values().map(|c| c.user_id);
10784 this.user_store().read_with(cx, |user_store, cx| {
10785 user_store.participant_names(user_ids, cx)
10786 })
10787 }
10788}
10789
10790pub trait CompletionProvider {
10791 fn completions(
10792 &self,
10793 buffer: &Model<Buffer>,
10794 buffer_position: text::Anchor,
10795 cx: &mut ViewContext<Editor>,
10796 ) -> Task<Result<Vec<Completion>>>;
10797
10798 fn resolve_completions(
10799 &self,
10800 buffer: Model<Buffer>,
10801 completion_indices: Vec<usize>,
10802 completions: Arc<RwLock<Box<[Completion]>>>,
10803 cx: &mut ViewContext<Editor>,
10804 ) -> Task<Result<bool>>;
10805
10806 fn apply_additional_edits_for_completion(
10807 &self,
10808 buffer: Model<Buffer>,
10809 completion: Completion,
10810 push_to_history: bool,
10811 cx: &mut ViewContext<Editor>,
10812 ) -> Task<Result<Option<language::Transaction>>>;
10813}
10814
10815impl CompletionProvider for Model<Project> {
10816 fn completions(
10817 &self,
10818 buffer: &Model<Buffer>,
10819 buffer_position: text::Anchor,
10820 cx: &mut ViewContext<Editor>,
10821 ) -> Task<Result<Vec<Completion>>> {
10822 self.update(cx, |project, cx| {
10823 project.completions(&buffer, buffer_position, cx)
10824 })
10825 }
10826
10827 fn resolve_completions(
10828 &self,
10829 buffer: Model<Buffer>,
10830 completion_indices: Vec<usize>,
10831 completions: Arc<RwLock<Box<[Completion]>>>,
10832 cx: &mut ViewContext<Editor>,
10833 ) -> Task<Result<bool>> {
10834 self.update(cx, |project, cx| {
10835 project.resolve_completions(buffer, completion_indices, completions, cx)
10836 })
10837 }
10838
10839 fn apply_additional_edits_for_completion(
10840 &self,
10841 buffer: Model<Buffer>,
10842 completion: Completion,
10843 push_to_history: bool,
10844 cx: &mut ViewContext<Editor>,
10845 ) -> Task<Result<Option<language::Transaction>>> {
10846 self.update(cx, |project, cx| {
10847 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10848 })
10849 }
10850}
10851
10852fn inlay_hint_settings(
10853 location: Anchor,
10854 snapshot: &MultiBufferSnapshot,
10855 cx: &mut ViewContext<'_, Editor>,
10856) -> InlayHintSettings {
10857 let file = snapshot.file_at(location);
10858 let language = snapshot.language_at(location);
10859 let settings = all_language_settings(file, cx);
10860 settings
10861 .language(language.map(|l| l.name()).as_deref())
10862 .inlay_hints
10863}
10864
10865fn consume_contiguous_rows(
10866 contiguous_row_selections: &mut Vec<Selection<Point>>,
10867 selection: &Selection<Point>,
10868 display_map: &DisplaySnapshot,
10869 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10870) -> (MultiBufferRow, MultiBufferRow) {
10871 contiguous_row_selections.push(selection.clone());
10872 let start_row = MultiBufferRow(selection.start.row);
10873 let mut end_row = ending_row(selection, display_map);
10874
10875 while let Some(next_selection) = selections.peek() {
10876 if next_selection.start.row <= end_row.0 {
10877 end_row = ending_row(next_selection, display_map);
10878 contiguous_row_selections.push(selections.next().unwrap().clone());
10879 } else {
10880 break;
10881 }
10882 }
10883 (start_row, end_row)
10884}
10885
10886fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
10887 if next_selection.end.column > 0 || next_selection.is_empty() {
10888 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
10889 } else {
10890 MultiBufferRow(next_selection.end.row)
10891 }
10892}
10893
10894impl EditorSnapshot {
10895 pub fn remote_selections_in_range<'a>(
10896 &'a self,
10897 range: &'a Range<Anchor>,
10898 collaboration_hub: &dyn CollaborationHub,
10899 cx: &'a AppContext,
10900 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10901 let participant_names = collaboration_hub.user_names(cx);
10902 let participant_indices = collaboration_hub.user_participant_indices(cx);
10903 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10904 let collaborators_by_replica_id = collaborators_by_peer_id
10905 .iter()
10906 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10907 .collect::<HashMap<_, _>>();
10908 self.buffer_snapshot
10909 .remote_selections_in_range(range)
10910 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10911 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10912 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10913 let user_name = participant_names.get(&collaborator.user_id).cloned();
10914 Some(RemoteSelection {
10915 replica_id,
10916 selection,
10917 cursor_shape,
10918 line_mode,
10919 participant_index,
10920 peer_id: collaborator.peer_id,
10921 user_name,
10922 })
10923 })
10924 }
10925
10926 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10927 self.display_snapshot.buffer_snapshot.language_at(position)
10928 }
10929
10930 pub fn is_focused(&self) -> bool {
10931 self.is_focused
10932 }
10933
10934 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10935 self.placeholder_text.as_ref()
10936 }
10937
10938 pub fn scroll_position(&self) -> gpui::Point<f32> {
10939 self.scroll_anchor.scroll_position(&self.display_snapshot)
10940 }
10941
10942 pub fn gutter_dimensions(
10943 &self,
10944 font_id: FontId,
10945 font_size: Pixels,
10946 em_width: Pixels,
10947 max_line_number_width: Pixels,
10948 cx: &AppContext,
10949 ) -> GutterDimensions {
10950 if !self.show_gutter {
10951 return GutterDimensions::default();
10952 }
10953 let descent = cx.text_system().descent(font_id, font_size);
10954
10955 let show_git_gutter = matches!(
10956 ProjectSettings::get_global(cx).git.git_gutter,
10957 Some(GitGutterSetting::TrackedFiles)
10958 );
10959 let gutter_settings = EditorSettings::get_global(cx).gutter;
10960 let gutter_lines_enabled = gutter_settings.line_numbers;
10961 let line_gutter_width = if gutter_lines_enabled {
10962 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10963 let min_width_for_number_on_gutter = em_width * 4.0;
10964 max_line_number_width.max(min_width_for_number_on_gutter)
10965 } else {
10966 0.0.into()
10967 };
10968
10969 let git_blame_entries_width = self
10970 .render_git_blame_gutter
10971 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10972
10973 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10974 left_padding += if gutter_settings.code_actions {
10975 em_width * 3.0
10976 } else if show_git_gutter && gutter_lines_enabled {
10977 em_width * 2.0
10978 } else if show_git_gutter || gutter_lines_enabled {
10979 em_width
10980 } else {
10981 px(0.)
10982 };
10983
10984 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10985 em_width * 4.0
10986 } else if gutter_settings.folds {
10987 em_width * 3.0
10988 } else if gutter_lines_enabled {
10989 em_width
10990 } else {
10991 px(0.)
10992 };
10993
10994 GutterDimensions {
10995 left_padding,
10996 right_padding,
10997 width: line_gutter_width + left_padding + right_padding,
10998 margin: -descent,
10999 git_blame_entries_width,
11000 }
11001 }
11002}
11003
11004impl Deref for EditorSnapshot {
11005 type Target = DisplaySnapshot;
11006
11007 fn deref(&self) -> &Self::Target {
11008 &self.display_snapshot
11009 }
11010}
11011
11012#[derive(Clone, Debug, PartialEq, Eq)]
11013pub enum EditorEvent {
11014 InputIgnored {
11015 text: Arc<str>,
11016 },
11017 InputHandled {
11018 utf16_range_to_replace: Option<Range<isize>>,
11019 text: Arc<str>,
11020 },
11021 ExcerptsAdded {
11022 buffer: Model<Buffer>,
11023 predecessor: ExcerptId,
11024 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11025 },
11026 ExcerptsRemoved {
11027 ids: Vec<ExcerptId>,
11028 },
11029 BufferEdited,
11030 Edited,
11031 Reparsed,
11032 Focused,
11033 Blurred,
11034 DirtyChanged,
11035 Saved,
11036 TitleChanged,
11037 DiffBaseChanged,
11038 SelectionsChanged {
11039 local: bool,
11040 },
11041 ScrollPositionChanged {
11042 local: bool,
11043 autoscroll: bool,
11044 },
11045 Closed,
11046 TransactionUndone {
11047 transaction_id: clock::Lamport,
11048 },
11049 TransactionBegun {
11050 transaction_id: clock::Lamport,
11051 },
11052}
11053
11054impl EventEmitter<EditorEvent> for Editor {}
11055
11056impl FocusableView for Editor {
11057 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11058 self.focus_handle.clone()
11059 }
11060}
11061
11062impl Render for Editor {
11063 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11064 let settings = ThemeSettings::get_global(cx);
11065
11066 let text_style = match self.mode {
11067 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11068 color: cx.theme().colors().editor_foreground,
11069 font_family: settings.ui_font.family.clone(),
11070 font_features: settings.ui_font.features.clone(),
11071 font_size: rems(0.875).into(),
11072 font_weight: FontWeight::NORMAL,
11073 font_style: FontStyle::Normal,
11074 line_height: relative(settings.buffer_line_height.value()),
11075 background_color: None,
11076 underline: None,
11077 strikethrough: None,
11078 white_space: WhiteSpace::Normal,
11079 },
11080 EditorMode::Full => TextStyle {
11081 color: cx.theme().colors().editor_foreground,
11082 font_family: settings.buffer_font.family.clone(),
11083 font_features: settings.buffer_font.features.clone(),
11084 font_size: settings.buffer_font_size(cx).into(),
11085 font_weight: FontWeight::NORMAL,
11086 font_style: FontStyle::Normal,
11087 line_height: relative(settings.buffer_line_height.value()),
11088 background_color: None,
11089 underline: None,
11090 strikethrough: None,
11091 white_space: WhiteSpace::Normal,
11092 },
11093 };
11094
11095 let background = match self.mode {
11096 EditorMode::SingleLine => cx.theme().system().transparent,
11097 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11098 EditorMode::Full => cx.theme().colors().editor_background,
11099 };
11100
11101 EditorElement::new(
11102 cx.view(),
11103 EditorStyle {
11104 background,
11105 local_player: cx.theme().players().local(),
11106 text: text_style,
11107 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11108 syntax: cx.theme().syntax().clone(),
11109 status: cx.theme().status().clone(),
11110 inlay_hints_style: HighlightStyle {
11111 color: Some(cx.theme().status().hint),
11112 ..HighlightStyle::default()
11113 },
11114 suggestions_style: HighlightStyle {
11115 color: Some(cx.theme().status().predictive),
11116 ..HighlightStyle::default()
11117 },
11118 },
11119 )
11120 }
11121}
11122
11123impl ViewInputHandler for Editor {
11124 fn text_for_range(
11125 &mut self,
11126 range_utf16: Range<usize>,
11127 cx: &mut ViewContext<Self>,
11128 ) -> Option<String> {
11129 Some(
11130 self.buffer
11131 .read(cx)
11132 .read(cx)
11133 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11134 .collect(),
11135 )
11136 }
11137
11138 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11139 // Prevent the IME menu from appearing when holding down an alphabetic key
11140 // while input is disabled.
11141 if !self.input_enabled {
11142 return None;
11143 }
11144
11145 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11146 Some(range.start.0..range.end.0)
11147 }
11148
11149 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11150 let snapshot = self.buffer.read(cx).read(cx);
11151 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11152 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11153 }
11154
11155 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11156 self.clear_highlights::<InputComposition>(cx);
11157 self.ime_transaction.take();
11158 }
11159
11160 fn replace_text_in_range(
11161 &mut self,
11162 range_utf16: Option<Range<usize>>,
11163 text: &str,
11164 cx: &mut ViewContext<Self>,
11165 ) {
11166 if !self.input_enabled {
11167 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11168 return;
11169 }
11170
11171 self.transact(cx, |this, cx| {
11172 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11173 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11174 Some(this.selection_replacement_ranges(range_utf16, cx))
11175 } else {
11176 this.marked_text_ranges(cx)
11177 };
11178
11179 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11180 let newest_selection_id = this.selections.newest_anchor().id;
11181 this.selections
11182 .all::<OffsetUtf16>(cx)
11183 .iter()
11184 .zip(ranges_to_replace.iter())
11185 .find_map(|(selection, range)| {
11186 if selection.id == newest_selection_id {
11187 Some(
11188 (range.start.0 as isize - selection.head().0 as isize)
11189 ..(range.end.0 as isize - selection.head().0 as isize),
11190 )
11191 } else {
11192 None
11193 }
11194 })
11195 });
11196
11197 cx.emit(EditorEvent::InputHandled {
11198 utf16_range_to_replace: range_to_replace,
11199 text: text.into(),
11200 });
11201
11202 if let Some(new_selected_ranges) = new_selected_ranges {
11203 this.change_selections(None, cx, |selections| {
11204 selections.select_ranges(new_selected_ranges)
11205 });
11206 this.backspace(&Default::default(), cx);
11207 }
11208
11209 this.handle_input(text, cx);
11210 });
11211
11212 if let Some(transaction) = self.ime_transaction {
11213 self.buffer.update(cx, |buffer, cx| {
11214 buffer.group_until_transaction(transaction, cx);
11215 });
11216 }
11217
11218 self.unmark_text(cx);
11219 }
11220
11221 fn replace_and_mark_text_in_range(
11222 &mut self,
11223 range_utf16: Option<Range<usize>>,
11224 text: &str,
11225 new_selected_range_utf16: Option<Range<usize>>,
11226 cx: &mut ViewContext<Self>,
11227 ) {
11228 if !self.input_enabled {
11229 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11230 return;
11231 }
11232
11233 let transaction = self.transact(cx, |this, cx| {
11234 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11235 let snapshot = this.buffer.read(cx).read(cx);
11236 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11237 for marked_range in &mut marked_ranges {
11238 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11239 marked_range.start.0 += relative_range_utf16.start;
11240 marked_range.start =
11241 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11242 marked_range.end =
11243 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11244 }
11245 }
11246 Some(marked_ranges)
11247 } else if let Some(range_utf16) = range_utf16 {
11248 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11249 Some(this.selection_replacement_ranges(range_utf16, cx))
11250 } else {
11251 None
11252 };
11253
11254 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11255 let newest_selection_id = this.selections.newest_anchor().id;
11256 this.selections
11257 .all::<OffsetUtf16>(cx)
11258 .iter()
11259 .zip(ranges_to_replace.iter())
11260 .find_map(|(selection, range)| {
11261 if selection.id == newest_selection_id {
11262 Some(
11263 (range.start.0 as isize - selection.head().0 as isize)
11264 ..(range.end.0 as isize - selection.head().0 as isize),
11265 )
11266 } else {
11267 None
11268 }
11269 })
11270 });
11271
11272 cx.emit(EditorEvent::InputHandled {
11273 utf16_range_to_replace: range_to_replace,
11274 text: text.into(),
11275 });
11276
11277 if let Some(ranges) = ranges_to_replace {
11278 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11279 }
11280
11281 let marked_ranges = {
11282 let snapshot = this.buffer.read(cx).read(cx);
11283 this.selections
11284 .disjoint_anchors()
11285 .iter()
11286 .map(|selection| {
11287 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11288 })
11289 .collect::<Vec<_>>()
11290 };
11291
11292 if text.is_empty() {
11293 this.unmark_text(cx);
11294 } else {
11295 this.highlight_text::<InputComposition>(
11296 marked_ranges.clone(),
11297 HighlightStyle {
11298 underline: Some(UnderlineStyle {
11299 thickness: px(1.),
11300 color: None,
11301 wavy: false,
11302 }),
11303 ..Default::default()
11304 },
11305 cx,
11306 );
11307 }
11308
11309 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11310 let use_autoclose = this.use_autoclose;
11311 this.set_use_autoclose(false);
11312 this.handle_input(text, cx);
11313 this.set_use_autoclose(use_autoclose);
11314
11315 if let Some(new_selected_range) = new_selected_range_utf16 {
11316 let snapshot = this.buffer.read(cx).read(cx);
11317 let new_selected_ranges = marked_ranges
11318 .into_iter()
11319 .map(|marked_range| {
11320 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11321 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11322 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11323 snapshot.clip_offset_utf16(new_start, Bias::Left)
11324 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11325 })
11326 .collect::<Vec<_>>();
11327
11328 drop(snapshot);
11329 this.change_selections(None, cx, |selections| {
11330 selections.select_ranges(new_selected_ranges)
11331 });
11332 }
11333 });
11334
11335 self.ime_transaction = self.ime_transaction.or(transaction);
11336 if let Some(transaction) = self.ime_transaction {
11337 self.buffer.update(cx, |buffer, cx| {
11338 buffer.group_until_transaction(transaction, cx);
11339 });
11340 }
11341
11342 if self.text_highlights::<InputComposition>(cx).is_none() {
11343 self.ime_transaction.take();
11344 }
11345 }
11346
11347 fn bounds_for_range(
11348 &mut self,
11349 range_utf16: Range<usize>,
11350 element_bounds: gpui::Bounds<Pixels>,
11351 cx: &mut ViewContext<Self>,
11352 ) -> Option<gpui::Bounds<Pixels>> {
11353 let text_layout_details = self.text_layout_details(cx);
11354 let style = &text_layout_details.editor_style;
11355 let font_id = cx.text_system().resolve_font(&style.text.font());
11356 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11357 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11358 let em_width = cx
11359 .text_system()
11360 .typographic_bounds(font_id, font_size, 'm')
11361 .unwrap()
11362 .size
11363 .width;
11364
11365 let snapshot = self.snapshot(cx);
11366 let scroll_position = snapshot.scroll_position();
11367 let scroll_left = scroll_position.x * em_width;
11368
11369 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11370 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11371 + self.gutter_dimensions.width;
11372 let y = line_height * (start.row().as_f32() - scroll_position.y);
11373
11374 Some(Bounds {
11375 origin: element_bounds.origin + point(x, y),
11376 size: size(em_width, line_height),
11377 })
11378 }
11379}
11380
11381trait SelectionExt {
11382 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11383 fn spanned_rows(
11384 &self,
11385 include_end_if_at_line_start: bool,
11386 map: &DisplaySnapshot,
11387 ) -> Range<MultiBufferRow>;
11388}
11389
11390impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11391 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11392 let start = self
11393 .start
11394 .to_point(&map.buffer_snapshot)
11395 .to_display_point(map);
11396 let end = self
11397 .end
11398 .to_point(&map.buffer_snapshot)
11399 .to_display_point(map);
11400 if self.reversed {
11401 end..start
11402 } else {
11403 start..end
11404 }
11405 }
11406
11407 fn spanned_rows(
11408 &self,
11409 include_end_if_at_line_start: bool,
11410 map: &DisplaySnapshot,
11411 ) -> Range<MultiBufferRow> {
11412 let start = self.start.to_point(&map.buffer_snapshot);
11413 let mut end = self.end.to_point(&map.buffer_snapshot);
11414 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11415 end.row -= 1;
11416 }
11417
11418 let buffer_start = map.prev_line_boundary(start).0;
11419 let buffer_end = map.next_line_boundary(end).0;
11420 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11421 }
11422}
11423
11424impl<T: InvalidationRegion> InvalidationStack<T> {
11425 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11426 where
11427 S: Clone + ToOffset,
11428 {
11429 while let Some(region) = self.last() {
11430 let all_selections_inside_invalidation_ranges =
11431 if selections.len() == region.ranges().len() {
11432 selections
11433 .iter()
11434 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11435 .all(|(selection, invalidation_range)| {
11436 let head = selection.head().to_offset(buffer);
11437 invalidation_range.start <= head && invalidation_range.end >= head
11438 })
11439 } else {
11440 false
11441 };
11442
11443 if all_selections_inside_invalidation_ranges {
11444 break;
11445 } else {
11446 self.pop();
11447 }
11448 }
11449 }
11450}
11451
11452impl<T> Default for InvalidationStack<T> {
11453 fn default() -> Self {
11454 Self(Default::default())
11455 }
11456}
11457
11458impl<T> Deref for InvalidationStack<T> {
11459 type Target = Vec<T>;
11460
11461 fn deref(&self) -> &Self::Target {
11462 &self.0
11463 }
11464}
11465
11466impl<T> DerefMut for InvalidationStack<T> {
11467 fn deref_mut(&mut self) -> &mut Self::Target {
11468 &mut self.0
11469 }
11470}
11471
11472impl InvalidationRegion for SnippetState {
11473 fn ranges(&self) -> &[Range<Anchor>] {
11474 &self.ranges[self.active_index]
11475 }
11476}
11477
11478pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11479 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11480
11481 Box::new(move |cx: &mut BlockContext| {
11482 let group_id: SharedString = cx.block_id.to_string().into();
11483
11484 let mut text_style = cx.text_style().clone();
11485 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11486 let theme_settings = ThemeSettings::get_global(cx);
11487 text_style.font_family = theme_settings.buffer_font.family.clone();
11488 text_style.font_style = theme_settings.buffer_font.style;
11489 text_style.font_features = theme_settings.buffer_font.features.clone();
11490 text_style.font_weight = theme_settings.buffer_font.weight;
11491
11492 let multi_line_diagnostic = diagnostic.message.contains('\n');
11493
11494 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11495 if multi_line_diagnostic {
11496 v_flex()
11497 } else {
11498 h_flex()
11499 }
11500 .children(diagnostic.is_primary.then(|| {
11501 IconButton::new(("close-block", block_id), IconName::XCircle)
11502 .icon_color(Color::Muted)
11503 .size(ButtonSize::Compact)
11504 .style(ButtonStyle::Transparent)
11505 .visible_on_hover(group_id.clone())
11506 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11507 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11508 }))
11509 .child(
11510 IconButton::new(("copy-block", block_id), IconName::Copy)
11511 .icon_color(Color::Muted)
11512 .size(ButtonSize::Compact)
11513 .style(ButtonStyle::Transparent)
11514 .visible_on_hover(group_id.clone())
11515 .on_click({
11516 let message = diagnostic.message.clone();
11517 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11518 })
11519 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11520 )
11521 };
11522
11523 let icon_size = buttons(&diagnostic, cx.block_id)
11524 .into_any_element()
11525 .layout_as_root(AvailableSpace::min_size(), cx);
11526
11527 h_flex()
11528 .id(cx.block_id)
11529 .group(group_id.clone())
11530 .relative()
11531 .size_full()
11532 .pl(cx.gutter_dimensions.width)
11533 .w(cx.max_width + cx.gutter_dimensions.width)
11534 .child(
11535 div()
11536 .flex()
11537 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11538 .flex_shrink(),
11539 )
11540 .child(buttons(&diagnostic, cx.block_id))
11541 .child(div().flex().flex_shrink_0().child(
11542 StyledText::new(text_without_backticks.clone()).with_highlights(
11543 &text_style,
11544 code_ranges.iter().map(|range| {
11545 (
11546 range.clone(),
11547 HighlightStyle {
11548 font_weight: Some(FontWeight::BOLD),
11549 ..Default::default()
11550 },
11551 )
11552 }),
11553 ),
11554 ))
11555 .into_any_element()
11556 })
11557}
11558
11559pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11560 let mut text_without_backticks = String::new();
11561 let mut code_ranges = Vec::new();
11562
11563 if let Some(source) = &diagnostic.source {
11564 text_without_backticks.push_str(&source);
11565 code_ranges.push(0..source.len());
11566 text_without_backticks.push_str(": ");
11567 }
11568
11569 let mut prev_offset = 0;
11570 let mut in_code_block = false;
11571 for (ix, _) in diagnostic
11572 .message
11573 .match_indices('`')
11574 .chain([(diagnostic.message.len(), "")])
11575 {
11576 let prev_len = text_without_backticks.len();
11577 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11578 prev_offset = ix + 1;
11579 if in_code_block {
11580 code_ranges.push(prev_len..text_without_backticks.len());
11581 in_code_block = false;
11582 } else {
11583 in_code_block = true;
11584 }
11585 }
11586
11587 (text_without_backticks.into(), code_ranges)
11588}
11589
11590fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11591 match (severity, valid) {
11592 (DiagnosticSeverity::ERROR, true) => colors.error,
11593 (DiagnosticSeverity::ERROR, false) => colors.error,
11594 (DiagnosticSeverity::WARNING, true) => colors.warning,
11595 (DiagnosticSeverity::WARNING, false) => colors.warning,
11596 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11597 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11598 (DiagnosticSeverity::HINT, true) => colors.info,
11599 (DiagnosticSeverity::HINT, false) => colors.info,
11600 _ => colors.ignored,
11601 }
11602}
11603
11604pub fn styled_runs_for_code_label<'a>(
11605 label: &'a CodeLabel,
11606 syntax_theme: &'a theme::SyntaxTheme,
11607) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11608 let fade_out = HighlightStyle {
11609 fade_out: Some(0.35),
11610 ..Default::default()
11611 };
11612
11613 let mut prev_end = label.filter_range.end;
11614 label
11615 .runs
11616 .iter()
11617 .enumerate()
11618 .flat_map(move |(ix, (range, highlight_id))| {
11619 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11620 style
11621 } else {
11622 return Default::default();
11623 };
11624 let mut muted_style = style;
11625 muted_style.highlight(fade_out);
11626
11627 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11628 if range.start >= label.filter_range.end {
11629 if range.start > prev_end {
11630 runs.push((prev_end..range.start, fade_out));
11631 }
11632 runs.push((range.clone(), muted_style));
11633 } else if range.end <= label.filter_range.end {
11634 runs.push((range.clone(), style));
11635 } else {
11636 runs.push((range.start..label.filter_range.end, style));
11637 runs.push((label.filter_range.end..range.end, muted_style));
11638 }
11639 prev_end = cmp::max(prev_end, range.end);
11640
11641 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11642 runs.push((prev_end..label.text.len(), fade_out));
11643 }
11644
11645 runs
11646 })
11647}
11648
11649pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11650 let mut prev_index = 0;
11651 let mut prev_codepoint: Option<char> = None;
11652 text.char_indices()
11653 .chain([(text.len(), '\0')])
11654 .filter_map(move |(index, codepoint)| {
11655 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11656 let is_boundary = index == text.len()
11657 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11658 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11659 if is_boundary {
11660 let chunk = &text[prev_index..index];
11661 prev_index = index;
11662 Some(chunk)
11663 } else {
11664 None
11665 }
11666 })
11667}
11668
11669trait RangeToAnchorExt {
11670 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11671}
11672
11673impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11674 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11675 let start_offset = self.start.to_offset(snapshot);
11676 let end_offset = self.end.to_offset(snapshot);
11677 if start_offset == end_offset {
11678 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11679 } else {
11680 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11681 }
11682 }
11683}
11684
11685pub trait RowExt {
11686 fn as_f32(&self) -> f32;
11687
11688 fn next_row(&self) -> Self;
11689
11690 fn previous_row(&self) -> Self;
11691
11692 fn minus(&self, other: Self) -> u32;
11693}
11694
11695impl RowExt for DisplayRow {
11696 fn as_f32(&self) -> f32 {
11697 self.0 as f32
11698 }
11699
11700 fn next_row(&self) -> Self {
11701 Self(self.0 + 1)
11702 }
11703
11704 fn previous_row(&self) -> Self {
11705 Self(self.0.saturating_sub(1))
11706 }
11707
11708 fn minus(&self, other: Self) -> u32 {
11709 self.0 - other.0
11710 }
11711}
11712
11713impl RowExt for MultiBufferRow {
11714 fn as_f32(&self) -> f32 {
11715 self.0 as f32
11716 }
11717
11718 fn next_row(&self) -> Self {
11719 Self(self.0 + 1)
11720 }
11721
11722 fn previous_row(&self) -> Self {
11723 Self(self.0.saturating_sub(1))
11724 }
11725
11726 fn minus(&self, other: Self) -> u32 {
11727 self.0 - other.0
11728 }
11729}
11730
11731trait RowRangeExt {
11732 type Row;
11733
11734 fn len(&self) -> usize;
11735
11736 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
11737}
11738
11739impl RowRangeExt for Range<MultiBufferRow> {
11740 type Row = MultiBufferRow;
11741
11742 fn len(&self) -> usize {
11743 (self.end.0 - self.start.0) as usize
11744 }
11745
11746 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
11747 (self.start.0..self.end.0).map(MultiBufferRow)
11748 }
11749}
11750
11751impl RowRangeExt for Range<DisplayRow> {
11752 type Row = DisplayRow;
11753
11754 fn len(&self) -> usize {
11755 (self.end.0 - self.start.0) as usize
11756 }
11757
11758 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
11759 (self.start.0..self.end.0).map(DisplayRow)
11760 }
11761}
11762
11763fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
11764 if hunk.diff_base_byte_range.is_empty() {
11765 DiffHunkStatus::Added
11766 } else if hunk.associated_range.is_empty() {
11767 DiffHunkStatus::Removed
11768 } else {
11769 DiffHunkStatus::Modified
11770 }
11771}