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.toggle_code_actions(
4513 &ToggleCodeActions {
4514 deployed_from_indicator: Some(row),
4515 },
4516 cx,
4517 );
4518 })),
4519 )
4520 } else {
4521 None
4522 }
4523 }
4524
4525 fn clear_tasks(&mut self) {
4526 self.tasks.clear()
4527 }
4528
4529 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: (usize, RunnableTasks)) {
4530 if let Some(_) = self.tasks.insert(key, value) {
4531 // This case should hopefully be rare, but just in case...
4532 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4533 }
4534 }
4535
4536 fn render_run_indicator(
4537 &self,
4538 _style: &EditorStyle,
4539 is_active: bool,
4540 row: DisplayRow,
4541 cx: &mut ViewContext<Self>,
4542 ) -> IconButton {
4543 IconButton::new("code_actions_indicator", ui::IconName::Play)
4544 .icon_size(IconSize::XSmall)
4545 .size(ui::ButtonSize::None)
4546 .icon_color(Color::Muted)
4547 .selected(is_active)
4548 .on_click(cx.listener(move |editor, _e, cx| {
4549 editor.toggle_code_actions(
4550 &ToggleCodeActions {
4551 deployed_from_indicator: Some(row),
4552 },
4553 cx,
4554 );
4555 }))
4556 }
4557
4558 pub fn render_fold_indicators(
4559 &mut self,
4560 fold_data: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
4561 _style: &EditorStyle,
4562 gutter_hovered: bool,
4563 _line_height: Pixels,
4564 _gutter_margin: Pixels,
4565 cx: &mut ViewContext<Self>,
4566 ) -> Vec<Option<AnyElement>> {
4567 fold_data
4568 .iter()
4569 .enumerate()
4570 .map(|(ix, fold_data)| {
4571 fold_data
4572 .map(|(fold_status, buffer_row, active)| {
4573 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4574 IconButton::new(ix, ui::IconName::ChevronDown)
4575 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4576 FoldStatus::Folded => {
4577 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4578 }
4579 FoldStatus::Foldable => {
4580 this.fold_at(&FoldAt { buffer_row }, cx);
4581 }
4582 }))
4583 .icon_color(ui::Color::Muted)
4584 .icon_size(ui::IconSize::Small)
4585 .selected(fold_status == FoldStatus::Folded)
4586 .selected_icon(ui::IconName::ChevronRight)
4587 .size(ui::ButtonSize::None)
4588 .into_any_element()
4589 })
4590 })
4591 .flatten()
4592 })
4593 .collect()
4594 }
4595
4596 pub fn context_menu_visible(&self) -> bool {
4597 self.context_menu
4598 .read()
4599 .as_ref()
4600 .map_or(false, |menu| menu.visible())
4601 }
4602
4603 fn render_context_menu(
4604 &self,
4605 cursor_position: DisplayPoint,
4606 style: &EditorStyle,
4607 max_height: Pixels,
4608 cx: &mut ViewContext<Editor>,
4609 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4610 self.context_menu.read().as_ref().map(|menu| {
4611 menu.render(
4612 cursor_position,
4613 style,
4614 max_height,
4615 self.workspace.as_ref().map(|(w, _)| w.clone()),
4616 cx,
4617 )
4618 })
4619 }
4620
4621 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4622 cx.notify();
4623 self.completion_tasks.clear();
4624 let context_menu = self.context_menu.write().take();
4625 if context_menu.is_some() {
4626 self.update_visible_inline_completion(cx);
4627 }
4628 context_menu
4629 }
4630
4631 pub fn insert_snippet(
4632 &mut self,
4633 insertion_ranges: &[Range<usize>],
4634 snippet: Snippet,
4635 cx: &mut ViewContext<Self>,
4636 ) -> Result<()> {
4637 let tabstops = self.buffer.update(cx, |buffer, cx| {
4638 let snippet_text: Arc<str> = snippet.text.clone().into();
4639 buffer.edit(
4640 insertion_ranges
4641 .iter()
4642 .cloned()
4643 .map(|range| (range, snippet_text.clone())),
4644 Some(AutoindentMode::EachLine),
4645 cx,
4646 );
4647
4648 let snapshot = &*buffer.read(cx);
4649 let snippet = &snippet;
4650 snippet
4651 .tabstops
4652 .iter()
4653 .map(|tabstop| {
4654 let mut tabstop_ranges = tabstop
4655 .iter()
4656 .flat_map(|tabstop_range| {
4657 let mut delta = 0_isize;
4658 insertion_ranges.iter().map(move |insertion_range| {
4659 let insertion_start = insertion_range.start as isize + delta;
4660 delta +=
4661 snippet.text.len() as isize - insertion_range.len() as isize;
4662
4663 let start = snapshot.anchor_before(
4664 (insertion_start + tabstop_range.start) as usize,
4665 );
4666 let end = snapshot
4667 .anchor_after((insertion_start + tabstop_range.end) as usize);
4668 start..end
4669 })
4670 })
4671 .collect::<Vec<_>>();
4672 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4673 tabstop_ranges
4674 })
4675 .collect::<Vec<_>>()
4676 });
4677
4678 if let Some(tabstop) = tabstops.first() {
4679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4680 s.select_ranges(tabstop.iter().cloned());
4681 });
4682 self.snippet_stack.push(SnippetState {
4683 active_index: 0,
4684 ranges: tabstops,
4685 });
4686
4687 // Check whether the just-entered snippet ends with an auto-closable bracket.
4688 if self.autoclose_regions.is_empty() {
4689 let snapshot = self.buffer.read(cx).snapshot(cx);
4690 for selection in &mut self.selections.all::<Point>(cx) {
4691 let selection_head = selection.head();
4692 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4693 continue;
4694 };
4695
4696 let mut bracket_pair = None;
4697 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4698 let prev_chars = snapshot
4699 .reversed_chars_at(selection_head)
4700 .collect::<String>();
4701 for (pair, enabled) in scope.brackets() {
4702 if enabled
4703 && pair.close
4704 && prev_chars.starts_with(pair.start.as_str())
4705 && next_chars.starts_with(pair.end.as_str())
4706 {
4707 bracket_pair = Some(pair.clone());
4708 break;
4709 }
4710 }
4711 if let Some(pair) = bracket_pair {
4712 let start = snapshot.anchor_after(selection_head);
4713 let end = snapshot.anchor_after(selection_head);
4714 self.autoclose_regions.push(AutocloseRegion {
4715 selection_id: selection.id,
4716 range: start..end,
4717 pair,
4718 });
4719 }
4720 }
4721 }
4722 }
4723 Ok(())
4724 }
4725
4726 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4727 self.move_to_snippet_tabstop(Bias::Right, cx)
4728 }
4729
4730 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4731 self.move_to_snippet_tabstop(Bias::Left, cx)
4732 }
4733
4734 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4735 if let Some(mut snippet) = self.snippet_stack.pop() {
4736 match bias {
4737 Bias::Left => {
4738 if snippet.active_index > 0 {
4739 snippet.active_index -= 1;
4740 } else {
4741 self.snippet_stack.push(snippet);
4742 return false;
4743 }
4744 }
4745 Bias::Right => {
4746 if snippet.active_index + 1 < snippet.ranges.len() {
4747 snippet.active_index += 1;
4748 } else {
4749 self.snippet_stack.push(snippet);
4750 return false;
4751 }
4752 }
4753 }
4754 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4755 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4756 s.select_anchor_ranges(current_ranges.iter().cloned())
4757 });
4758 // If snippet state is not at the last tabstop, push it back on the stack
4759 if snippet.active_index + 1 < snippet.ranges.len() {
4760 self.snippet_stack.push(snippet);
4761 }
4762 return true;
4763 }
4764 }
4765
4766 false
4767 }
4768
4769 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4770 self.transact(cx, |this, cx| {
4771 this.select_all(&SelectAll, cx);
4772 this.insert("", cx);
4773 });
4774 }
4775
4776 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4777 self.transact(cx, |this, cx| {
4778 this.select_autoclose_pair(cx);
4779 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4780 if !this.selections.line_mode {
4781 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4782 for selection in &mut selections {
4783 if selection.is_empty() {
4784 let old_head = selection.head();
4785 let mut new_head =
4786 movement::left(&display_map, old_head.to_display_point(&display_map))
4787 .to_point(&display_map);
4788 if let Some((buffer, line_buffer_range)) = display_map
4789 .buffer_snapshot
4790 .buffer_line_for_row(MultiBufferRow(old_head.row))
4791 {
4792 let indent_size =
4793 buffer.indent_size_for_line(line_buffer_range.start.row);
4794 let indent_len = match indent_size.kind {
4795 IndentKind::Space => {
4796 buffer.settings_at(line_buffer_range.start, cx).tab_size
4797 }
4798 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4799 };
4800 if old_head.column <= indent_size.len && old_head.column > 0 {
4801 let indent_len = indent_len.get();
4802 new_head = cmp::min(
4803 new_head,
4804 MultiBufferPoint::new(
4805 old_head.row,
4806 ((old_head.column - 1) / indent_len) * indent_len,
4807 ),
4808 );
4809 }
4810 }
4811
4812 selection.set_head(new_head, SelectionGoal::None);
4813 }
4814 }
4815 }
4816
4817 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4818 this.insert("", cx);
4819 this.refresh_inline_completion(true, cx);
4820 });
4821 }
4822
4823 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4824 self.transact(cx, |this, cx| {
4825 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4826 let line_mode = s.line_mode;
4827 s.move_with(|map, selection| {
4828 if selection.is_empty() && !line_mode {
4829 let cursor = movement::right(map, selection.head());
4830 selection.end = cursor;
4831 selection.reversed = true;
4832 selection.goal = SelectionGoal::None;
4833 }
4834 })
4835 });
4836 this.insert("", cx);
4837 this.refresh_inline_completion(true, cx);
4838 });
4839 }
4840
4841 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4842 if self.move_to_prev_snippet_tabstop(cx) {
4843 return;
4844 }
4845
4846 self.outdent(&Outdent, cx);
4847 }
4848
4849 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4850 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4851 return;
4852 }
4853
4854 let mut selections = self.selections.all_adjusted(cx);
4855 let buffer = self.buffer.read(cx);
4856 let snapshot = buffer.snapshot(cx);
4857 let rows_iter = selections.iter().map(|s| s.head().row);
4858 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4859
4860 let mut edits = Vec::new();
4861 let mut prev_edited_row = 0;
4862 let mut row_delta = 0;
4863 for selection in &mut selections {
4864 if selection.start.row != prev_edited_row {
4865 row_delta = 0;
4866 }
4867 prev_edited_row = selection.end.row;
4868
4869 // If the selection is non-empty, then increase the indentation of the selected lines.
4870 if !selection.is_empty() {
4871 row_delta =
4872 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4873 continue;
4874 }
4875
4876 // If the selection is empty and the cursor is in the leading whitespace before the
4877 // suggested indentation, then auto-indent the line.
4878 let cursor = selection.head();
4879 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4880 if let Some(suggested_indent) =
4881 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4882 {
4883 if cursor.column < suggested_indent.len
4884 && cursor.column <= current_indent.len
4885 && current_indent.len <= suggested_indent.len
4886 {
4887 selection.start = Point::new(cursor.row, suggested_indent.len);
4888 selection.end = selection.start;
4889 if row_delta == 0 {
4890 edits.extend(Buffer::edit_for_indent_size_adjustment(
4891 cursor.row,
4892 current_indent,
4893 suggested_indent,
4894 ));
4895 row_delta = suggested_indent.len - current_indent.len;
4896 }
4897 continue;
4898 }
4899 }
4900
4901 // Accept copilot completion if there is only one selection and the cursor is not
4902 // in the leading whitespace.
4903 if self.selections.count() == 1
4904 && cursor.column >= current_indent.len
4905 && self.has_active_inline_completion(cx)
4906 {
4907 self.accept_inline_completion(cx);
4908 return;
4909 }
4910
4911 // Otherwise, insert a hard or soft tab.
4912 let settings = buffer.settings_at(cursor, cx);
4913 let tab_size = if settings.hard_tabs {
4914 IndentSize::tab()
4915 } else {
4916 let tab_size = settings.tab_size.get();
4917 let char_column = snapshot
4918 .text_for_range(Point::new(cursor.row, 0)..cursor)
4919 .flat_map(str::chars)
4920 .count()
4921 + row_delta as usize;
4922 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4923 IndentSize::spaces(chars_to_next_tab_stop)
4924 };
4925 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4926 selection.end = selection.start;
4927 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4928 row_delta += tab_size.len;
4929 }
4930
4931 self.transact(cx, |this, cx| {
4932 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4933 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4934 this.refresh_inline_completion(true, cx);
4935 });
4936 }
4937
4938 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4939 if self.read_only(cx) {
4940 return;
4941 }
4942 let mut selections = self.selections.all::<Point>(cx);
4943 let mut prev_edited_row = 0;
4944 let mut row_delta = 0;
4945 let mut edits = Vec::new();
4946 let buffer = self.buffer.read(cx);
4947 let snapshot = buffer.snapshot(cx);
4948 for selection in &mut selections {
4949 if selection.start.row != prev_edited_row {
4950 row_delta = 0;
4951 }
4952 prev_edited_row = selection.end.row;
4953
4954 row_delta =
4955 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4956 }
4957
4958 self.transact(cx, |this, cx| {
4959 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4960 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4961 });
4962 }
4963
4964 fn indent_selection(
4965 buffer: &MultiBuffer,
4966 snapshot: &MultiBufferSnapshot,
4967 selection: &mut Selection<Point>,
4968 edits: &mut Vec<(Range<Point>, String)>,
4969 delta_for_start_row: u32,
4970 cx: &AppContext,
4971 ) -> u32 {
4972 let settings = buffer.settings_at(selection.start, cx);
4973 let tab_size = settings.tab_size.get();
4974 let indent_kind = if settings.hard_tabs {
4975 IndentKind::Tab
4976 } else {
4977 IndentKind::Space
4978 };
4979 let mut start_row = selection.start.row;
4980 let mut end_row = selection.end.row + 1;
4981
4982 // If a selection ends at the beginning of a line, don't indent
4983 // that last line.
4984 if selection.end.column == 0 && selection.end.row > selection.start.row {
4985 end_row -= 1;
4986 }
4987
4988 // Avoid re-indenting a row that has already been indented by a
4989 // previous selection, but still update this selection's column
4990 // to reflect that indentation.
4991 if delta_for_start_row > 0 {
4992 start_row += 1;
4993 selection.start.column += delta_for_start_row;
4994 if selection.end.row == selection.start.row {
4995 selection.end.column += delta_for_start_row;
4996 }
4997 }
4998
4999 let mut delta_for_end_row = 0;
5000 let has_multiple_rows = start_row + 1 != end_row;
5001 for row in start_row..end_row {
5002 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5003 let indent_delta = match (current_indent.kind, indent_kind) {
5004 (IndentKind::Space, IndentKind::Space) => {
5005 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5006 IndentSize::spaces(columns_to_next_tab_stop)
5007 }
5008 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5009 (_, IndentKind::Tab) => IndentSize::tab(),
5010 };
5011
5012 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5013 0
5014 } else {
5015 selection.start.column
5016 };
5017 let row_start = Point::new(row, start);
5018 edits.push((
5019 row_start..row_start,
5020 indent_delta.chars().collect::<String>(),
5021 ));
5022
5023 // Update this selection's endpoints to reflect the indentation.
5024 if row == selection.start.row {
5025 selection.start.column += indent_delta.len;
5026 }
5027 if row == selection.end.row {
5028 selection.end.column += indent_delta.len;
5029 delta_for_end_row = indent_delta.len;
5030 }
5031 }
5032
5033 if selection.start.row == selection.end.row {
5034 delta_for_start_row + delta_for_end_row
5035 } else {
5036 delta_for_end_row
5037 }
5038 }
5039
5040 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5041 if self.read_only(cx) {
5042 return;
5043 }
5044 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5045 let selections = self.selections.all::<Point>(cx);
5046 let mut deletion_ranges = Vec::new();
5047 let mut last_outdent = None;
5048 {
5049 let buffer = self.buffer.read(cx);
5050 let snapshot = buffer.snapshot(cx);
5051 for selection in &selections {
5052 let settings = buffer.settings_at(selection.start, cx);
5053 let tab_size = settings.tab_size.get();
5054 let mut rows = selection.spanned_rows(false, &display_map);
5055
5056 // Avoid re-outdenting a row that has already been outdented by a
5057 // previous selection.
5058 if let Some(last_row) = last_outdent {
5059 if last_row == rows.start {
5060 rows.start = rows.start.next_row();
5061 }
5062 }
5063 let has_multiple_rows = rows.len() > 1;
5064 for row in rows.iter_rows() {
5065 let indent_size = snapshot.indent_size_for_line(row);
5066 if indent_size.len > 0 {
5067 let deletion_len = match indent_size.kind {
5068 IndentKind::Space => {
5069 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5070 if columns_to_prev_tab_stop == 0 {
5071 tab_size
5072 } else {
5073 columns_to_prev_tab_stop
5074 }
5075 }
5076 IndentKind::Tab => 1,
5077 };
5078 let start = if has_multiple_rows
5079 || deletion_len > selection.start.column
5080 || indent_size.len < selection.start.column
5081 {
5082 0
5083 } else {
5084 selection.start.column - deletion_len
5085 };
5086 deletion_ranges.push(
5087 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5088 );
5089 last_outdent = Some(row);
5090 }
5091 }
5092 }
5093 }
5094
5095 self.transact(cx, |this, cx| {
5096 this.buffer.update(cx, |buffer, cx| {
5097 let empty_str: Arc<str> = "".into();
5098 buffer.edit(
5099 deletion_ranges
5100 .into_iter()
5101 .map(|range| (range, empty_str.clone())),
5102 None,
5103 cx,
5104 );
5105 });
5106 let selections = this.selections.all::<usize>(cx);
5107 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5108 });
5109 }
5110
5111 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5112 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5113 let selections = self.selections.all::<Point>(cx);
5114
5115 let mut new_cursors = Vec::new();
5116 let mut edit_ranges = Vec::new();
5117 let mut selections = selections.iter().peekable();
5118 while let Some(selection) = selections.next() {
5119 let mut rows = selection.spanned_rows(false, &display_map);
5120 let goal_display_column = selection.head().to_display_point(&display_map).column();
5121
5122 // Accumulate contiguous regions of rows that we want to delete.
5123 while let Some(next_selection) = selections.peek() {
5124 let next_rows = next_selection.spanned_rows(false, &display_map);
5125 if next_rows.start <= rows.end {
5126 rows.end = next_rows.end;
5127 selections.next().unwrap();
5128 } else {
5129 break;
5130 }
5131 }
5132
5133 let buffer = &display_map.buffer_snapshot;
5134 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5135 let edit_end;
5136 let cursor_buffer_row;
5137 if buffer.max_point().row >= rows.end.0 {
5138 // If there's a line after the range, delete the \n from the end of the row range
5139 // and position the cursor on the next line.
5140 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5141 cursor_buffer_row = rows.end;
5142 } else {
5143 // If there isn't a line after the range, delete the \n from the line before the
5144 // start of the row range and position the cursor there.
5145 edit_start = edit_start.saturating_sub(1);
5146 edit_end = buffer.len();
5147 cursor_buffer_row = rows.start.previous_row();
5148 }
5149
5150 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5151 *cursor.column_mut() =
5152 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5153
5154 new_cursors.push((
5155 selection.id,
5156 buffer.anchor_after(cursor.to_point(&display_map)),
5157 ));
5158 edit_ranges.push(edit_start..edit_end);
5159 }
5160
5161 self.transact(cx, |this, cx| {
5162 let buffer = this.buffer.update(cx, |buffer, cx| {
5163 let empty_str: Arc<str> = "".into();
5164 buffer.edit(
5165 edit_ranges
5166 .into_iter()
5167 .map(|range| (range, empty_str.clone())),
5168 None,
5169 cx,
5170 );
5171 buffer.snapshot(cx)
5172 });
5173 let new_selections = new_cursors
5174 .into_iter()
5175 .map(|(id, cursor)| {
5176 let cursor = cursor.to_point(&buffer);
5177 Selection {
5178 id,
5179 start: cursor,
5180 end: cursor,
5181 reversed: false,
5182 goal: SelectionGoal::None,
5183 }
5184 })
5185 .collect();
5186
5187 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5188 s.select(new_selections);
5189 });
5190 });
5191 }
5192
5193 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5194 if self.read_only(cx) {
5195 return;
5196 }
5197 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5198 for selection in self.selections.all::<Point>(cx) {
5199 let start = MultiBufferRow(selection.start.row);
5200 let end = if selection.start.row == selection.end.row {
5201 MultiBufferRow(selection.start.row + 1)
5202 } else {
5203 MultiBufferRow(selection.end.row)
5204 };
5205
5206 if let Some(last_row_range) = row_ranges.last_mut() {
5207 if start <= last_row_range.end {
5208 last_row_range.end = end;
5209 continue;
5210 }
5211 }
5212 row_ranges.push(start..end);
5213 }
5214
5215 let snapshot = self.buffer.read(cx).snapshot(cx);
5216 let mut cursor_positions = Vec::new();
5217 for row_range in &row_ranges {
5218 let anchor = snapshot.anchor_before(Point::new(
5219 row_range.end.previous_row().0,
5220 snapshot.line_len(row_range.end.previous_row()),
5221 ));
5222 cursor_positions.push(anchor..anchor);
5223 }
5224
5225 self.transact(cx, |this, cx| {
5226 for row_range in row_ranges.into_iter().rev() {
5227 for row in row_range.iter_rows().rev() {
5228 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5229 let next_line_row = row.next_row();
5230 let indent = snapshot.indent_size_for_line(next_line_row);
5231 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5232
5233 let replace = if snapshot.line_len(next_line_row) > indent.len {
5234 " "
5235 } else {
5236 ""
5237 };
5238
5239 this.buffer.update(cx, |buffer, cx| {
5240 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5241 });
5242 }
5243 }
5244
5245 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5246 s.select_anchor_ranges(cursor_positions)
5247 });
5248 });
5249 }
5250
5251 pub fn sort_lines_case_sensitive(
5252 &mut self,
5253 _: &SortLinesCaseSensitive,
5254 cx: &mut ViewContext<Self>,
5255 ) {
5256 self.manipulate_lines(cx, |lines| lines.sort())
5257 }
5258
5259 pub fn sort_lines_case_insensitive(
5260 &mut self,
5261 _: &SortLinesCaseInsensitive,
5262 cx: &mut ViewContext<Self>,
5263 ) {
5264 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5265 }
5266
5267 pub fn unique_lines_case_insensitive(
5268 &mut self,
5269 _: &UniqueLinesCaseInsensitive,
5270 cx: &mut ViewContext<Self>,
5271 ) {
5272 self.manipulate_lines(cx, |lines| {
5273 let mut seen = HashSet::default();
5274 lines.retain(|line| seen.insert(line.to_lowercase()));
5275 })
5276 }
5277
5278 pub fn unique_lines_case_sensitive(
5279 &mut self,
5280 _: &UniqueLinesCaseSensitive,
5281 cx: &mut ViewContext<Self>,
5282 ) {
5283 self.manipulate_lines(cx, |lines| {
5284 let mut seen = HashSet::default();
5285 lines.retain(|line| seen.insert(*line));
5286 })
5287 }
5288
5289 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5290 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5291 if !revert_changes.is_empty() {
5292 self.transact(cx, |editor, cx| {
5293 editor.buffer().update(cx, |multi_buffer, cx| {
5294 for (buffer_id, changes) in revert_changes {
5295 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5296 buffer.update(cx, |buffer, cx| {
5297 buffer.edit(
5298 changes.into_iter().map(|(range, text)| {
5299 (range, text.to_string().map(Arc::<str>::from))
5300 }),
5301 None,
5302 cx,
5303 );
5304 });
5305 }
5306 }
5307 });
5308 editor.change_selections(None, cx, |selections| selections.refresh());
5309 });
5310 }
5311 }
5312
5313 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5314 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5315 let project_path = buffer.read(cx).project_path(cx)?;
5316 let project = self.project.as_ref()?.read(cx);
5317 let entry = project.entry_for_path(&project_path, cx)?;
5318 let abs_path = project.absolute_path(&project_path, cx)?;
5319 let parent = if entry.is_symlink {
5320 abs_path.canonicalize().ok()?
5321 } else {
5322 abs_path
5323 }
5324 .parent()?
5325 .to_path_buf();
5326 Some(parent)
5327 }) {
5328 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5329 }
5330 }
5331
5332 fn gather_revert_changes(
5333 &mut self,
5334 selections: &[Selection<Anchor>],
5335 cx: &mut ViewContext<'_, Editor>,
5336 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5337 let mut revert_changes = HashMap::default();
5338 self.buffer.update(cx, |multi_buffer, cx| {
5339 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5340 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5341 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5342 }
5343 });
5344 revert_changes
5345 }
5346
5347 fn prepare_revert_change(
5348 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5349 multi_buffer: &MultiBuffer,
5350 hunk: &DiffHunk<MultiBufferRow>,
5351 cx: &mut AppContext,
5352 ) -> Option<()> {
5353 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5354 let buffer = buffer.read(cx);
5355 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5356 let buffer_snapshot = buffer.snapshot();
5357 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5358 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5359 probe
5360 .0
5361 .start
5362 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5363 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5364 }) {
5365 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5366 Some(())
5367 } else {
5368 None
5369 }
5370 }
5371
5372 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5373 self.manipulate_lines(cx, |lines| lines.reverse())
5374 }
5375
5376 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5377 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5378 }
5379
5380 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5381 where
5382 Fn: FnMut(&mut Vec<&str>),
5383 {
5384 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5385 let buffer = self.buffer.read(cx).snapshot(cx);
5386
5387 let mut edits = Vec::new();
5388
5389 let selections = self.selections.all::<Point>(cx);
5390 let mut selections = selections.iter().peekable();
5391 let mut contiguous_row_selections = Vec::new();
5392 let mut new_selections = Vec::new();
5393 let mut added_lines = 0;
5394 let mut removed_lines = 0;
5395
5396 while let Some(selection) = selections.next() {
5397 let (start_row, end_row) = consume_contiguous_rows(
5398 &mut contiguous_row_selections,
5399 selection,
5400 &display_map,
5401 &mut selections,
5402 );
5403
5404 let start_point = Point::new(start_row.0, 0);
5405 let end_point = Point::new(
5406 end_row.previous_row().0,
5407 buffer.line_len(end_row.previous_row()),
5408 );
5409 let text = buffer
5410 .text_for_range(start_point..end_point)
5411 .collect::<String>();
5412
5413 let mut lines = text.split('\n').collect_vec();
5414
5415 let lines_before = lines.len();
5416 callback(&mut lines);
5417 let lines_after = lines.len();
5418
5419 edits.push((start_point..end_point, lines.join("\n")));
5420
5421 // Selections must change based on added and removed line count
5422 let start_row =
5423 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5424 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5425 new_selections.push(Selection {
5426 id: selection.id,
5427 start: start_row,
5428 end: end_row,
5429 goal: SelectionGoal::None,
5430 reversed: selection.reversed,
5431 });
5432
5433 if lines_after > lines_before {
5434 added_lines += lines_after - lines_before;
5435 } else if lines_before > lines_after {
5436 removed_lines += lines_before - lines_after;
5437 }
5438 }
5439
5440 self.transact(cx, |this, cx| {
5441 let buffer = this.buffer.update(cx, |buffer, cx| {
5442 buffer.edit(edits, None, cx);
5443 buffer.snapshot(cx)
5444 });
5445
5446 // Recalculate offsets on newly edited buffer
5447 let new_selections = new_selections
5448 .iter()
5449 .map(|s| {
5450 let start_point = Point::new(s.start.0, 0);
5451 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5452 Selection {
5453 id: s.id,
5454 start: buffer.point_to_offset(start_point),
5455 end: buffer.point_to_offset(end_point),
5456 goal: s.goal,
5457 reversed: s.reversed,
5458 }
5459 })
5460 .collect();
5461
5462 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5463 s.select(new_selections);
5464 });
5465
5466 this.request_autoscroll(Autoscroll::fit(), cx);
5467 });
5468 }
5469
5470 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5471 self.manipulate_text(cx, |text| text.to_uppercase())
5472 }
5473
5474 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5475 self.manipulate_text(cx, |text| text.to_lowercase())
5476 }
5477
5478 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5479 self.manipulate_text(cx, |text| {
5480 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5481 // https://github.com/rutrum/convert-case/issues/16
5482 text.split('\n')
5483 .map(|line| line.to_case(Case::Title))
5484 .join("\n")
5485 })
5486 }
5487
5488 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5489 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5490 }
5491
5492 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5493 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5494 }
5495
5496 pub fn convert_to_upper_camel_case(
5497 &mut self,
5498 _: &ConvertToUpperCamelCase,
5499 cx: &mut ViewContext<Self>,
5500 ) {
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::UpperCamel))
5506 .join("\n")
5507 })
5508 }
5509
5510 pub fn convert_to_lower_camel_case(
5511 &mut self,
5512 _: &ConvertToLowerCamelCase,
5513 cx: &mut ViewContext<Self>,
5514 ) {
5515 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5516 }
5517
5518 pub fn convert_to_opposite_case(
5519 &mut self,
5520 _: &ConvertToOppositeCase,
5521 cx: &mut ViewContext<Self>,
5522 ) {
5523 self.manipulate_text(cx, |text| {
5524 text.chars()
5525 .fold(String::with_capacity(text.len()), |mut t, c| {
5526 if c.is_uppercase() {
5527 t.extend(c.to_lowercase());
5528 } else {
5529 t.extend(c.to_uppercase());
5530 }
5531 t
5532 })
5533 })
5534 }
5535
5536 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5537 where
5538 Fn: FnMut(&str) -> String,
5539 {
5540 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5541 let buffer = self.buffer.read(cx).snapshot(cx);
5542
5543 let mut new_selections = Vec::new();
5544 let mut edits = Vec::new();
5545 let mut selection_adjustment = 0i32;
5546
5547 for selection in self.selections.all::<usize>(cx) {
5548 let selection_is_empty = selection.is_empty();
5549
5550 let (start, end) = if selection_is_empty {
5551 let word_range = movement::surrounding_word(
5552 &display_map,
5553 selection.start.to_display_point(&display_map),
5554 );
5555 let start = word_range.start.to_offset(&display_map, Bias::Left);
5556 let end = word_range.end.to_offset(&display_map, Bias::Left);
5557 (start, end)
5558 } else {
5559 (selection.start, selection.end)
5560 };
5561
5562 let text = buffer.text_for_range(start..end).collect::<String>();
5563 let old_length = text.len() as i32;
5564 let text = callback(&text);
5565
5566 new_selections.push(Selection {
5567 start: (start as i32 - selection_adjustment) as usize,
5568 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5569 goal: SelectionGoal::None,
5570 ..selection
5571 });
5572
5573 selection_adjustment += old_length - text.len() as i32;
5574
5575 edits.push((start..end, text));
5576 }
5577
5578 self.transact(cx, |this, cx| {
5579 this.buffer.update(cx, |buffer, cx| {
5580 buffer.edit(edits, None, cx);
5581 });
5582
5583 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5584 s.select(new_selections);
5585 });
5586
5587 this.request_autoscroll(Autoscroll::fit(), cx);
5588 });
5589 }
5590
5591 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5592 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5593 let buffer = &display_map.buffer_snapshot;
5594 let selections = self.selections.all::<Point>(cx);
5595
5596 let mut edits = Vec::new();
5597 let mut selections_iter = selections.iter().peekable();
5598 while let Some(selection) = selections_iter.next() {
5599 // Avoid duplicating the same lines twice.
5600 let mut rows = selection.spanned_rows(false, &display_map);
5601
5602 while let Some(next_selection) = selections_iter.peek() {
5603 let next_rows = next_selection.spanned_rows(false, &display_map);
5604 if next_rows.start < rows.end {
5605 rows.end = next_rows.end;
5606 selections_iter.next().unwrap();
5607 } else {
5608 break;
5609 }
5610 }
5611
5612 // Copy the text from the selected row region and splice it either at the start
5613 // or end of the region.
5614 let start = Point::new(rows.start.0, 0);
5615 let end = Point::new(
5616 rows.end.previous_row().0,
5617 buffer.line_len(rows.end.previous_row()),
5618 );
5619 let text = buffer
5620 .text_for_range(start..end)
5621 .chain(Some("\n"))
5622 .collect::<String>();
5623 let insert_location = if upwards {
5624 Point::new(rows.end.0, 0)
5625 } else {
5626 start
5627 };
5628 edits.push((insert_location..insert_location, text));
5629 }
5630
5631 self.transact(cx, |this, cx| {
5632 this.buffer.update(cx, |buffer, cx| {
5633 buffer.edit(edits, None, cx);
5634 });
5635
5636 this.request_autoscroll(Autoscroll::fit(), cx);
5637 });
5638 }
5639
5640 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5641 self.duplicate_line(true, cx);
5642 }
5643
5644 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5645 self.duplicate_line(false, cx);
5646 }
5647
5648 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5649 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5650 let buffer = self.buffer.read(cx).snapshot(cx);
5651
5652 let mut edits = Vec::new();
5653 let mut unfold_ranges = Vec::new();
5654 let mut refold_ranges = Vec::new();
5655
5656 let selections = self.selections.all::<Point>(cx);
5657 let mut selections = selections.iter().peekable();
5658 let mut contiguous_row_selections = Vec::new();
5659 let mut new_selections = Vec::new();
5660
5661 while let Some(selection) = selections.next() {
5662 // Find all the selections that span a contiguous row range
5663 let (start_row, end_row) = consume_contiguous_rows(
5664 &mut contiguous_row_selections,
5665 selection,
5666 &display_map,
5667 &mut selections,
5668 );
5669
5670 // Move the text spanned by the row range to be before the line preceding the row range
5671 if start_row.0 > 0 {
5672 let range_to_move = Point::new(
5673 start_row.previous_row().0,
5674 buffer.line_len(start_row.previous_row()),
5675 )
5676 ..Point::new(
5677 end_row.previous_row().0,
5678 buffer.line_len(end_row.previous_row()),
5679 );
5680 let insertion_point = display_map
5681 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5682 .0;
5683
5684 // Don't move lines across excerpts
5685 if buffer
5686 .excerpt_boundaries_in_range((
5687 Bound::Excluded(insertion_point),
5688 Bound::Included(range_to_move.end),
5689 ))
5690 .next()
5691 .is_none()
5692 {
5693 let text = buffer
5694 .text_for_range(range_to_move.clone())
5695 .flat_map(|s| s.chars())
5696 .skip(1)
5697 .chain(['\n'])
5698 .collect::<String>();
5699
5700 edits.push((
5701 buffer.anchor_after(range_to_move.start)
5702 ..buffer.anchor_before(range_to_move.end),
5703 String::new(),
5704 ));
5705 let insertion_anchor = buffer.anchor_after(insertion_point);
5706 edits.push((insertion_anchor..insertion_anchor, text));
5707
5708 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5709
5710 // Move selections up
5711 new_selections.extend(contiguous_row_selections.drain(..).map(
5712 |mut selection| {
5713 selection.start.row -= row_delta;
5714 selection.end.row -= row_delta;
5715 selection
5716 },
5717 ));
5718
5719 // Move folds up
5720 unfold_ranges.push(range_to_move.clone());
5721 for fold in display_map.folds_in_range(
5722 buffer.anchor_before(range_to_move.start)
5723 ..buffer.anchor_after(range_to_move.end),
5724 ) {
5725 let mut start = fold.range.start.to_point(&buffer);
5726 let mut end = fold.range.end.to_point(&buffer);
5727 start.row -= row_delta;
5728 end.row -= row_delta;
5729 refold_ranges.push(start..end);
5730 }
5731 }
5732 }
5733
5734 // If we didn't move line(s), preserve the existing selections
5735 new_selections.append(&mut contiguous_row_selections);
5736 }
5737
5738 self.transact(cx, |this, cx| {
5739 this.unfold_ranges(unfold_ranges, true, true, cx);
5740 this.buffer.update(cx, |buffer, cx| {
5741 for (range, text) in edits {
5742 buffer.edit([(range, text)], None, cx);
5743 }
5744 });
5745 this.fold_ranges(refold_ranges, true, cx);
5746 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5747 s.select(new_selections);
5748 })
5749 });
5750 }
5751
5752 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5753 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5754 let buffer = self.buffer.read(cx).snapshot(cx);
5755
5756 let mut edits = Vec::new();
5757 let mut unfold_ranges = Vec::new();
5758 let mut refold_ranges = Vec::new();
5759
5760 let selections = self.selections.all::<Point>(cx);
5761 let mut selections = selections.iter().peekable();
5762 let mut contiguous_row_selections = Vec::new();
5763 let mut new_selections = Vec::new();
5764
5765 while let Some(selection) = selections.next() {
5766 // Find all the selections that span a contiguous row range
5767 let (start_row, end_row) = consume_contiguous_rows(
5768 &mut contiguous_row_selections,
5769 selection,
5770 &display_map,
5771 &mut selections,
5772 );
5773
5774 // Move the text spanned by the row range to be after the last line of the row range
5775 if end_row.0 <= buffer.max_point().row {
5776 let range_to_move =
5777 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5778 let insertion_point = display_map
5779 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5780 .0;
5781
5782 // Don't move lines across excerpt boundaries
5783 if buffer
5784 .excerpt_boundaries_in_range((
5785 Bound::Excluded(range_to_move.start),
5786 Bound::Included(insertion_point),
5787 ))
5788 .next()
5789 .is_none()
5790 {
5791 let mut text = String::from("\n");
5792 text.extend(buffer.text_for_range(range_to_move.clone()));
5793 text.pop(); // Drop trailing newline
5794 edits.push((
5795 buffer.anchor_after(range_to_move.start)
5796 ..buffer.anchor_before(range_to_move.end),
5797 String::new(),
5798 ));
5799 let insertion_anchor = buffer.anchor_after(insertion_point);
5800 edits.push((insertion_anchor..insertion_anchor, text));
5801
5802 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5803
5804 // Move selections down
5805 new_selections.extend(contiguous_row_selections.drain(..).map(
5806 |mut selection| {
5807 selection.start.row += row_delta;
5808 selection.end.row += row_delta;
5809 selection
5810 },
5811 ));
5812
5813 // Move folds down
5814 unfold_ranges.push(range_to_move.clone());
5815 for fold in display_map.folds_in_range(
5816 buffer.anchor_before(range_to_move.start)
5817 ..buffer.anchor_after(range_to_move.end),
5818 ) {
5819 let mut start = fold.range.start.to_point(&buffer);
5820 let mut end = fold.range.end.to_point(&buffer);
5821 start.row += row_delta;
5822 end.row += row_delta;
5823 refold_ranges.push(start..end);
5824 }
5825 }
5826 }
5827
5828 // If we didn't move line(s), preserve the existing selections
5829 new_selections.append(&mut contiguous_row_selections);
5830 }
5831
5832 self.transact(cx, |this, cx| {
5833 this.unfold_ranges(unfold_ranges, true, true, cx);
5834 this.buffer.update(cx, |buffer, cx| {
5835 for (range, text) in edits {
5836 buffer.edit([(range, text)], None, cx);
5837 }
5838 });
5839 this.fold_ranges(refold_ranges, true, cx);
5840 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5841 });
5842 }
5843
5844 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5845 let text_layout_details = &self.text_layout_details(cx);
5846 self.transact(cx, |this, cx| {
5847 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5848 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5849 let line_mode = s.line_mode;
5850 s.move_with(|display_map, selection| {
5851 if !selection.is_empty() || line_mode {
5852 return;
5853 }
5854
5855 let mut head = selection.head();
5856 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5857 if head.column() == display_map.line_len(head.row()) {
5858 transpose_offset = display_map
5859 .buffer_snapshot
5860 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5861 }
5862
5863 if transpose_offset == 0 {
5864 return;
5865 }
5866
5867 *head.column_mut() += 1;
5868 head = display_map.clip_point(head, Bias::Right);
5869 let goal = SelectionGoal::HorizontalPosition(
5870 display_map
5871 .x_for_display_point(head, &text_layout_details)
5872 .into(),
5873 );
5874 selection.collapse_to(head, goal);
5875
5876 let transpose_start = display_map
5877 .buffer_snapshot
5878 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5879 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5880 let transpose_end = display_map
5881 .buffer_snapshot
5882 .clip_offset(transpose_offset + 1, Bias::Right);
5883 if let Some(ch) =
5884 display_map.buffer_snapshot.chars_at(transpose_start).next()
5885 {
5886 edits.push((transpose_start..transpose_offset, String::new()));
5887 edits.push((transpose_end..transpose_end, ch.to_string()));
5888 }
5889 }
5890 });
5891 edits
5892 });
5893 this.buffer
5894 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5895 let selections = this.selections.all::<usize>(cx);
5896 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5897 s.select(selections);
5898 });
5899 });
5900 }
5901
5902 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5903 let mut text = String::new();
5904 let buffer = self.buffer.read(cx).snapshot(cx);
5905 let mut selections = self.selections.all::<Point>(cx);
5906 let mut clipboard_selections = Vec::with_capacity(selections.len());
5907 {
5908 let max_point = buffer.max_point();
5909 let mut is_first = true;
5910 for selection in &mut selections {
5911 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5912 if is_entire_line {
5913 selection.start = Point::new(selection.start.row, 0);
5914 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5915 selection.goal = SelectionGoal::None;
5916 }
5917 if is_first {
5918 is_first = false;
5919 } else {
5920 text += "\n";
5921 }
5922 let mut len = 0;
5923 for chunk in buffer.text_for_range(selection.start..selection.end) {
5924 text.push_str(chunk);
5925 len += chunk.len();
5926 }
5927 clipboard_selections.push(ClipboardSelection {
5928 len,
5929 is_entire_line,
5930 first_line_indent: buffer
5931 .indent_size_for_line(MultiBufferRow(selection.start.row))
5932 .len,
5933 });
5934 }
5935 }
5936
5937 self.transact(cx, |this, cx| {
5938 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5939 s.select(selections);
5940 });
5941 this.insert("", cx);
5942 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5943 });
5944 }
5945
5946 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5947 let selections = self.selections.all::<Point>(cx);
5948 let buffer = self.buffer.read(cx).read(cx);
5949 let mut text = String::new();
5950
5951 let mut clipboard_selections = Vec::with_capacity(selections.len());
5952 {
5953 let max_point = buffer.max_point();
5954 let mut is_first = true;
5955 for selection in selections.iter() {
5956 let mut start = selection.start;
5957 let mut end = selection.end;
5958 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5959 if is_entire_line {
5960 start = Point::new(start.row, 0);
5961 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5962 }
5963 if is_first {
5964 is_first = false;
5965 } else {
5966 text += "\n";
5967 }
5968 let mut len = 0;
5969 for chunk in buffer.text_for_range(start..end) {
5970 text.push_str(chunk);
5971 len += chunk.len();
5972 }
5973 clipboard_selections.push(ClipboardSelection {
5974 len,
5975 is_entire_line,
5976 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
5977 });
5978 }
5979 }
5980
5981 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5982 }
5983
5984 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5985 if self.read_only(cx) {
5986 return;
5987 }
5988
5989 self.transact(cx, |this, cx| {
5990 if let Some(item) = cx.read_from_clipboard() {
5991 let clipboard_text = Cow::Borrowed(item.text());
5992 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5993 let old_selections = this.selections.all::<usize>(cx);
5994 let all_selections_were_entire_line =
5995 clipboard_selections.iter().all(|s| s.is_entire_line);
5996 let first_selection_indent_column =
5997 clipboard_selections.first().map(|s| s.first_line_indent);
5998 if clipboard_selections.len() != old_selections.len() {
5999 clipboard_selections.drain(..);
6000 }
6001
6002 this.buffer.update(cx, |buffer, cx| {
6003 let snapshot = buffer.read(cx);
6004 let mut start_offset = 0;
6005 let mut edits = Vec::new();
6006 let mut original_indent_columns = Vec::new();
6007 let line_mode = this.selections.line_mode;
6008 for (ix, selection) in old_selections.iter().enumerate() {
6009 let to_insert;
6010 let entire_line;
6011 let original_indent_column;
6012 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6013 let end_offset = start_offset + clipboard_selection.len;
6014 to_insert = &clipboard_text[start_offset..end_offset];
6015 entire_line = clipboard_selection.is_entire_line;
6016 start_offset = end_offset + 1;
6017 original_indent_column =
6018 Some(clipboard_selection.first_line_indent);
6019 } else {
6020 to_insert = clipboard_text.as_str();
6021 entire_line = all_selections_were_entire_line;
6022 original_indent_column = first_selection_indent_column
6023 }
6024
6025 // If the corresponding selection was empty when this slice of the
6026 // clipboard text was written, then the entire line containing the
6027 // selection was copied. If this selection is also currently empty,
6028 // then paste the line before the current line of the buffer.
6029 let range = if selection.is_empty() && !line_mode && entire_line {
6030 let column = selection.start.to_point(&snapshot).column as usize;
6031 let line_start = selection.start - column;
6032 line_start..line_start
6033 } else {
6034 selection.range()
6035 };
6036
6037 edits.push((range, to_insert));
6038 original_indent_columns.extend(original_indent_column);
6039 }
6040 drop(snapshot);
6041
6042 buffer.edit(
6043 edits,
6044 Some(AutoindentMode::Block {
6045 original_indent_columns,
6046 }),
6047 cx,
6048 );
6049 });
6050
6051 let selections = this.selections.all::<usize>(cx);
6052 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6053 } else {
6054 this.insert(&clipboard_text, cx);
6055 }
6056 }
6057 });
6058 }
6059
6060 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6061 if self.read_only(cx) {
6062 return;
6063 }
6064
6065 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6066 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6067 self.change_selections(None, cx, |s| {
6068 s.select_anchors(selections.to_vec());
6069 });
6070 }
6071 self.request_autoscroll(Autoscroll::fit(), cx);
6072 self.unmark_text(cx);
6073 self.refresh_inline_completion(true, cx);
6074 cx.emit(EditorEvent::Edited);
6075 cx.emit(EditorEvent::TransactionUndone {
6076 transaction_id: tx_id,
6077 });
6078 }
6079 }
6080
6081 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6082 if self.read_only(cx) {
6083 return;
6084 }
6085
6086 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6087 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6088 {
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 }
6098 }
6099
6100 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6101 self.buffer
6102 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6103 }
6104
6105 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6106 self.buffer
6107 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6108 }
6109
6110 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6111 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6112 let line_mode = s.line_mode;
6113 s.move_with(|map, selection| {
6114 let cursor = if selection.is_empty() && !line_mode {
6115 movement::left(map, selection.start)
6116 } else {
6117 selection.start
6118 };
6119 selection.collapse_to(cursor, SelectionGoal::None);
6120 });
6121 })
6122 }
6123
6124 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6125 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6126 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6127 })
6128 }
6129
6130 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6131 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6132 let line_mode = s.line_mode;
6133 s.move_with(|map, selection| {
6134 let cursor = if selection.is_empty() && !line_mode {
6135 movement::right(map, selection.end)
6136 } else {
6137 selection.end
6138 };
6139 selection.collapse_to(cursor, SelectionGoal::None)
6140 });
6141 })
6142 }
6143
6144 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6145 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6146 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6147 })
6148 }
6149
6150 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6151 if self.take_rename(true, cx).is_some() {
6152 return;
6153 }
6154
6155 if matches!(self.mode, EditorMode::SingleLine) {
6156 cx.propagate();
6157 return;
6158 }
6159
6160 let text_layout_details = &self.text_layout_details(cx);
6161
6162 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6163 let line_mode = s.line_mode;
6164 s.move_with(|map, selection| {
6165 if !selection.is_empty() && !line_mode {
6166 selection.goal = SelectionGoal::None;
6167 }
6168 let (cursor, goal) = movement::up(
6169 map,
6170 selection.start,
6171 selection.goal,
6172 false,
6173 &text_layout_details,
6174 );
6175 selection.collapse_to(cursor, goal);
6176 });
6177 })
6178 }
6179
6180 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6181 if self.take_rename(true, cx).is_some() {
6182 return;
6183 }
6184
6185 if matches!(self.mode, EditorMode::SingleLine) {
6186 cx.propagate();
6187 return;
6188 }
6189
6190 let text_layout_details = &self.text_layout_details(cx);
6191
6192 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6193 let line_mode = s.line_mode;
6194 s.move_with(|map, selection| {
6195 if !selection.is_empty() && !line_mode {
6196 selection.goal = SelectionGoal::None;
6197 }
6198 let (cursor, goal) = movement::up_by_rows(
6199 map,
6200 selection.start,
6201 action.lines,
6202 selection.goal,
6203 false,
6204 &text_layout_details,
6205 );
6206 selection.collapse_to(cursor, goal);
6207 });
6208 })
6209 }
6210
6211 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6212 if self.take_rename(true, cx).is_some() {
6213 return;
6214 }
6215
6216 if matches!(self.mode, EditorMode::SingleLine) {
6217 cx.propagate();
6218 return;
6219 }
6220
6221 let text_layout_details = &self.text_layout_details(cx);
6222
6223 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6224 let line_mode = s.line_mode;
6225 s.move_with(|map, selection| {
6226 if !selection.is_empty() && !line_mode {
6227 selection.goal = SelectionGoal::None;
6228 }
6229 let (cursor, goal) = movement::down_by_rows(
6230 map,
6231 selection.start,
6232 action.lines,
6233 selection.goal,
6234 false,
6235 &text_layout_details,
6236 );
6237 selection.collapse_to(cursor, goal);
6238 });
6239 })
6240 }
6241
6242 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6243 let text_layout_details = &self.text_layout_details(cx);
6244 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6245 s.move_heads_with(|map, head, goal| {
6246 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6247 })
6248 })
6249 }
6250
6251 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6252 let text_layout_details = &self.text_layout_details(cx);
6253 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6254 s.move_heads_with(|map, head, goal| {
6255 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6256 })
6257 })
6258 }
6259
6260 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6261 if self.take_rename(true, cx).is_some() {
6262 return;
6263 }
6264
6265 if matches!(self.mode, EditorMode::SingleLine) {
6266 cx.propagate();
6267 return;
6268 }
6269
6270 let row_count = if let Some(row_count) = self.visible_line_count() {
6271 row_count as u32 - 1
6272 } else {
6273 return;
6274 };
6275
6276 let autoscroll = if action.center_cursor {
6277 Autoscroll::center()
6278 } else {
6279 Autoscroll::fit()
6280 };
6281
6282 let text_layout_details = &self.text_layout_details(cx);
6283
6284 self.change_selections(Some(autoscroll), cx, |s| {
6285 let line_mode = s.line_mode;
6286 s.move_with(|map, selection| {
6287 if !selection.is_empty() && !line_mode {
6288 selection.goal = SelectionGoal::None;
6289 }
6290 let (cursor, goal) = movement::up_by_rows(
6291 map,
6292 selection.end,
6293 row_count,
6294 selection.goal,
6295 false,
6296 &text_layout_details,
6297 );
6298 selection.collapse_to(cursor, goal);
6299 });
6300 });
6301 }
6302
6303 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6304 let text_layout_details = &self.text_layout_details(cx);
6305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6306 s.move_heads_with(|map, head, goal| {
6307 movement::up(map, head, goal, false, &text_layout_details)
6308 })
6309 })
6310 }
6311
6312 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6313 self.take_rename(true, cx);
6314
6315 if self.mode == EditorMode::SingleLine {
6316 cx.propagate();
6317 return;
6318 }
6319
6320 let text_layout_details = &self.text_layout_details(cx);
6321 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6322 let line_mode = s.line_mode;
6323 s.move_with(|map, selection| {
6324 if !selection.is_empty() && !line_mode {
6325 selection.goal = SelectionGoal::None;
6326 }
6327 let (cursor, goal) = movement::down(
6328 map,
6329 selection.end,
6330 selection.goal,
6331 false,
6332 &text_layout_details,
6333 );
6334 selection.collapse_to(cursor, goal);
6335 });
6336 });
6337 }
6338
6339 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6340 if self.take_rename(true, cx).is_some() {
6341 return;
6342 }
6343
6344 if self
6345 .context_menu
6346 .write()
6347 .as_mut()
6348 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6349 .unwrap_or(false)
6350 {
6351 return;
6352 }
6353
6354 if matches!(self.mode, EditorMode::SingleLine) {
6355 cx.propagate();
6356 return;
6357 }
6358
6359 let row_count = if let Some(row_count) = self.visible_line_count() {
6360 row_count as u32 - 1
6361 } else {
6362 return;
6363 };
6364
6365 let autoscroll = if action.center_cursor {
6366 Autoscroll::center()
6367 } else {
6368 Autoscroll::fit()
6369 };
6370
6371 let text_layout_details = &self.text_layout_details(cx);
6372 self.change_selections(Some(autoscroll), cx, |s| {
6373 let line_mode = s.line_mode;
6374 s.move_with(|map, selection| {
6375 if !selection.is_empty() && !line_mode {
6376 selection.goal = SelectionGoal::None;
6377 }
6378 let (cursor, goal) = movement::down_by_rows(
6379 map,
6380 selection.end,
6381 row_count,
6382 selection.goal,
6383 false,
6384 &text_layout_details,
6385 );
6386 selection.collapse_to(cursor, goal);
6387 });
6388 });
6389 }
6390
6391 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6392 let text_layout_details = &self.text_layout_details(cx);
6393 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6394 s.move_heads_with(|map, head, goal| {
6395 movement::down(map, head, goal, false, &text_layout_details)
6396 })
6397 });
6398 }
6399
6400 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6401 if let Some(context_menu) = self.context_menu.write().as_mut() {
6402 context_menu.select_first(self.project.as_ref(), cx);
6403 }
6404 }
6405
6406 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6407 if let Some(context_menu) = self.context_menu.write().as_mut() {
6408 context_menu.select_prev(self.project.as_ref(), cx);
6409 }
6410 }
6411
6412 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6413 if let Some(context_menu) = self.context_menu.write().as_mut() {
6414 context_menu.select_next(self.project.as_ref(), cx);
6415 }
6416 }
6417
6418 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6419 if let Some(context_menu) = self.context_menu.write().as_mut() {
6420 context_menu.select_last(self.project.as_ref(), cx);
6421 }
6422 }
6423
6424 pub fn move_to_previous_word_start(
6425 &mut self,
6426 _: &MoveToPreviousWordStart,
6427 cx: &mut ViewContext<Self>,
6428 ) {
6429 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6430 s.move_cursors_with(|map, head, _| {
6431 (
6432 movement::previous_word_start(map, head),
6433 SelectionGoal::None,
6434 )
6435 });
6436 })
6437 }
6438
6439 pub fn move_to_previous_subword_start(
6440 &mut self,
6441 _: &MoveToPreviousSubwordStart,
6442 cx: &mut ViewContext<Self>,
6443 ) {
6444 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6445 s.move_cursors_with(|map, head, _| {
6446 (
6447 movement::previous_subword_start(map, head),
6448 SelectionGoal::None,
6449 )
6450 });
6451 })
6452 }
6453
6454 pub fn select_to_previous_word_start(
6455 &mut self,
6456 _: &SelectToPreviousWordStart,
6457 cx: &mut ViewContext<Self>,
6458 ) {
6459 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6460 s.move_heads_with(|map, head, _| {
6461 (
6462 movement::previous_word_start(map, head),
6463 SelectionGoal::None,
6464 )
6465 });
6466 })
6467 }
6468
6469 pub fn select_to_previous_subword_start(
6470 &mut self,
6471 _: &SelectToPreviousSubwordStart,
6472 cx: &mut ViewContext<Self>,
6473 ) {
6474 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6475 s.move_heads_with(|map, head, _| {
6476 (
6477 movement::previous_subword_start(map, head),
6478 SelectionGoal::None,
6479 )
6480 });
6481 })
6482 }
6483
6484 pub fn delete_to_previous_word_start(
6485 &mut self,
6486 _: &DeleteToPreviousWordStart,
6487 cx: &mut ViewContext<Self>,
6488 ) {
6489 self.transact(cx, |this, cx| {
6490 this.select_autoclose_pair(cx);
6491 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6492 let line_mode = s.line_mode;
6493 s.move_with(|map, selection| {
6494 if selection.is_empty() && !line_mode {
6495 let cursor = movement::previous_word_start(map, selection.head());
6496 selection.set_head(cursor, SelectionGoal::None);
6497 }
6498 });
6499 });
6500 this.insert("", cx);
6501 });
6502 }
6503
6504 pub fn delete_to_previous_subword_start(
6505 &mut self,
6506 _: &DeleteToPreviousSubwordStart,
6507 cx: &mut ViewContext<Self>,
6508 ) {
6509 self.transact(cx, |this, cx| {
6510 this.select_autoclose_pair(cx);
6511 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6512 let line_mode = s.line_mode;
6513 s.move_with(|map, selection| {
6514 if selection.is_empty() && !line_mode {
6515 let cursor = movement::previous_subword_start(map, selection.head());
6516 selection.set_head(cursor, SelectionGoal::None);
6517 }
6518 });
6519 });
6520 this.insert("", cx);
6521 });
6522 }
6523
6524 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6525 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6526 s.move_cursors_with(|map, head, _| {
6527 (movement::next_word_end(map, head), SelectionGoal::None)
6528 });
6529 })
6530 }
6531
6532 pub fn move_to_next_subword_end(
6533 &mut self,
6534 _: &MoveToNextSubwordEnd,
6535 cx: &mut ViewContext<Self>,
6536 ) {
6537 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6538 s.move_cursors_with(|map, head, _| {
6539 (movement::next_subword_end(map, head), SelectionGoal::None)
6540 });
6541 })
6542 }
6543
6544 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6545 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6546 s.move_heads_with(|map, head, _| {
6547 (movement::next_word_end(map, head), SelectionGoal::None)
6548 });
6549 })
6550 }
6551
6552 pub fn select_to_next_subword_end(
6553 &mut self,
6554 _: &SelectToNextSubwordEnd,
6555 cx: &mut ViewContext<Self>,
6556 ) {
6557 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6558 s.move_heads_with(|map, head, _| {
6559 (movement::next_subword_end(map, head), SelectionGoal::None)
6560 });
6561 })
6562 }
6563
6564 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6565 self.transact(cx, |this, cx| {
6566 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6567 let line_mode = s.line_mode;
6568 s.move_with(|map, selection| {
6569 if selection.is_empty() && !line_mode {
6570 let cursor = movement::next_word_end(map, selection.head());
6571 selection.set_head(cursor, SelectionGoal::None);
6572 }
6573 });
6574 });
6575 this.insert("", cx);
6576 });
6577 }
6578
6579 pub fn delete_to_next_subword_end(
6580 &mut self,
6581 _: &DeleteToNextSubwordEnd,
6582 cx: &mut ViewContext<Self>,
6583 ) {
6584 self.transact(cx, |this, cx| {
6585 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6586 s.move_with(|map, selection| {
6587 if selection.is_empty() {
6588 let cursor = movement::next_subword_end(map, selection.head());
6589 selection.set_head(cursor, SelectionGoal::None);
6590 }
6591 });
6592 });
6593 this.insert("", cx);
6594 });
6595 }
6596
6597 pub fn move_to_beginning_of_line(
6598 &mut self,
6599 action: &MoveToBeginningOfLine,
6600 cx: &mut ViewContext<Self>,
6601 ) {
6602 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6603 s.move_cursors_with(|map, head, _| {
6604 (
6605 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6606 SelectionGoal::None,
6607 )
6608 });
6609 })
6610 }
6611
6612 pub fn select_to_beginning_of_line(
6613 &mut self,
6614 action: &SelectToBeginningOfLine,
6615 cx: &mut ViewContext<Self>,
6616 ) {
6617 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6618 s.move_heads_with(|map, head, _| {
6619 (
6620 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6621 SelectionGoal::None,
6622 )
6623 });
6624 });
6625 }
6626
6627 pub fn delete_to_beginning_of_line(
6628 &mut self,
6629 _: &DeleteToBeginningOfLine,
6630 cx: &mut ViewContext<Self>,
6631 ) {
6632 self.transact(cx, |this, cx| {
6633 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6634 s.move_with(|_, selection| {
6635 selection.reversed = true;
6636 });
6637 });
6638
6639 this.select_to_beginning_of_line(
6640 &SelectToBeginningOfLine {
6641 stop_at_soft_wraps: false,
6642 },
6643 cx,
6644 );
6645 this.backspace(&Backspace, cx);
6646 });
6647 }
6648
6649 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6650 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6651 s.move_cursors_with(|map, head, _| {
6652 (
6653 movement::line_end(map, head, action.stop_at_soft_wraps),
6654 SelectionGoal::None,
6655 )
6656 });
6657 })
6658 }
6659
6660 pub fn select_to_end_of_line(
6661 &mut self,
6662 action: &SelectToEndOfLine,
6663 cx: &mut ViewContext<Self>,
6664 ) {
6665 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6666 s.move_heads_with(|map, head, _| {
6667 (
6668 movement::line_end(map, head, action.stop_at_soft_wraps),
6669 SelectionGoal::None,
6670 )
6671 });
6672 })
6673 }
6674
6675 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6676 self.transact(cx, |this, cx| {
6677 this.select_to_end_of_line(
6678 &SelectToEndOfLine {
6679 stop_at_soft_wraps: false,
6680 },
6681 cx,
6682 );
6683 this.delete(&Delete, cx);
6684 });
6685 }
6686
6687 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6688 self.transact(cx, |this, cx| {
6689 this.select_to_end_of_line(
6690 &SelectToEndOfLine {
6691 stop_at_soft_wraps: false,
6692 },
6693 cx,
6694 );
6695 this.cut(&Cut, cx);
6696 });
6697 }
6698
6699 pub fn move_to_start_of_paragraph(
6700 &mut self,
6701 _: &MoveToStartOfParagraph,
6702 cx: &mut ViewContext<Self>,
6703 ) {
6704 if matches!(self.mode, EditorMode::SingleLine) {
6705 cx.propagate();
6706 return;
6707 }
6708
6709 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6710 s.move_with(|map, selection| {
6711 selection.collapse_to(
6712 movement::start_of_paragraph(map, selection.head(), 1),
6713 SelectionGoal::None,
6714 )
6715 });
6716 })
6717 }
6718
6719 pub fn move_to_end_of_paragraph(
6720 &mut self,
6721 _: &MoveToEndOfParagraph,
6722 cx: &mut ViewContext<Self>,
6723 ) {
6724 if matches!(self.mode, EditorMode::SingleLine) {
6725 cx.propagate();
6726 return;
6727 }
6728
6729 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6730 s.move_with(|map, selection| {
6731 selection.collapse_to(
6732 movement::end_of_paragraph(map, selection.head(), 1),
6733 SelectionGoal::None,
6734 )
6735 });
6736 })
6737 }
6738
6739 pub fn select_to_start_of_paragraph(
6740 &mut self,
6741 _: &SelectToStartOfParagraph,
6742 cx: &mut ViewContext<Self>,
6743 ) {
6744 if matches!(self.mode, EditorMode::SingleLine) {
6745 cx.propagate();
6746 return;
6747 }
6748
6749 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6750 s.move_heads_with(|map, head, _| {
6751 (
6752 movement::start_of_paragraph(map, head, 1),
6753 SelectionGoal::None,
6754 )
6755 });
6756 })
6757 }
6758
6759 pub fn select_to_end_of_paragraph(
6760 &mut self,
6761 _: &SelectToEndOfParagraph,
6762 cx: &mut ViewContext<Self>,
6763 ) {
6764 if matches!(self.mode, EditorMode::SingleLine) {
6765 cx.propagate();
6766 return;
6767 }
6768
6769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6770 s.move_heads_with(|map, head, _| {
6771 (
6772 movement::end_of_paragraph(map, head, 1),
6773 SelectionGoal::None,
6774 )
6775 });
6776 })
6777 }
6778
6779 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6780 if matches!(self.mode, EditorMode::SingleLine) {
6781 cx.propagate();
6782 return;
6783 }
6784
6785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6786 s.select_ranges(vec![0..0]);
6787 });
6788 }
6789
6790 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6791 let mut selection = self.selections.last::<Point>(cx);
6792 selection.set_head(Point::zero(), SelectionGoal::None);
6793
6794 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6795 s.select(vec![selection]);
6796 });
6797 }
6798
6799 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6800 if matches!(self.mode, EditorMode::SingleLine) {
6801 cx.propagate();
6802 return;
6803 }
6804
6805 let cursor = self.buffer.read(cx).read(cx).len();
6806 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6807 s.select_ranges(vec![cursor..cursor])
6808 });
6809 }
6810
6811 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6812 self.nav_history = nav_history;
6813 }
6814
6815 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6816 self.nav_history.as_ref()
6817 }
6818
6819 fn push_to_nav_history(
6820 &mut self,
6821 cursor_anchor: Anchor,
6822 new_position: Option<Point>,
6823 cx: &mut ViewContext<Self>,
6824 ) {
6825 if let Some(nav_history) = self.nav_history.as_mut() {
6826 let buffer = self.buffer.read(cx).read(cx);
6827 let cursor_position = cursor_anchor.to_point(&buffer);
6828 let scroll_state = self.scroll_manager.anchor();
6829 let scroll_top_row = scroll_state.top_row(&buffer);
6830 drop(buffer);
6831
6832 if let Some(new_position) = new_position {
6833 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6834 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6835 return;
6836 }
6837 }
6838
6839 nav_history.push(
6840 Some(NavigationData {
6841 cursor_anchor,
6842 cursor_position,
6843 scroll_anchor: scroll_state,
6844 scroll_top_row,
6845 }),
6846 cx,
6847 );
6848 }
6849 }
6850
6851 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6852 let buffer = self.buffer.read(cx).snapshot(cx);
6853 let mut selection = self.selections.first::<usize>(cx);
6854 selection.set_head(buffer.len(), SelectionGoal::None);
6855 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6856 s.select(vec![selection]);
6857 });
6858 }
6859
6860 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6861 let end = self.buffer.read(cx).read(cx).len();
6862 self.change_selections(None, cx, |s| {
6863 s.select_ranges(vec![0..end]);
6864 });
6865 }
6866
6867 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6868 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6869 let mut selections = self.selections.all::<Point>(cx);
6870 let max_point = display_map.buffer_snapshot.max_point();
6871 for selection in &mut selections {
6872 let rows = selection.spanned_rows(true, &display_map);
6873 selection.start = Point::new(rows.start.0, 0);
6874 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
6875 selection.reversed = false;
6876 }
6877 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6878 s.select(selections);
6879 });
6880 }
6881
6882 pub fn split_selection_into_lines(
6883 &mut self,
6884 _: &SplitSelectionIntoLines,
6885 cx: &mut ViewContext<Self>,
6886 ) {
6887 let mut to_unfold = Vec::new();
6888 let mut new_selection_ranges = Vec::new();
6889 {
6890 let selections = self.selections.all::<Point>(cx);
6891 let buffer = self.buffer.read(cx).read(cx);
6892 for selection in selections {
6893 for row in selection.start.row..selection.end.row {
6894 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
6895 new_selection_ranges.push(cursor..cursor);
6896 }
6897 new_selection_ranges.push(selection.end..selection.end);
6898 to_unfold.push(selection.start..selection.end);
6899 }
6900 }
6901 self.unfold_ranges(to_unfold, true, true, cx);
6902 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6903 s.select_ranges(new_selection_ranges);
6904 });
6905 }
6906
6907 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6908 self.add_selection(true, cx);
6909 }
6910
6911 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6912 self.add_selection(false, cx);
6913 }
6914
6915 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6916 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6917 let mut selections = self.selections.all::<Point>(cx);
6918 let text_layout_details = self.text_layout_details(cx);
6919 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6920 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6921 let range = oldest_selection.display_range(&display_map).sorted();
6922
6923 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6924 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6925 let positions = start_x.min(end_x)..start_x.max(end_x);
6926
6927 selections.clear();
6928 let mut stack = Vec::new();
6929 for row in range.start.row().0..=range.end.row().0 {
6930 if let Some(selection) = self.selections.build_columnar_selection(
6931 &display_map,
6932 DisplayRow(row),
6933 &positions,
6934 oldest_selection.reversed,
6935 &text_layout_details,
6936 ) {
6937 stack.push(selection.id);
6938 selections.push(selection);
6939 }
6940 }
6941
6942 if above {
6943 stack.reverse();
6944 }
6945
6946 AddSelectionsState { above, stack }
6947 });
6948
6949 let last_added_selection = *state.stack.last().unwrap();
6950 let mut new_selections = Vec::new();
6951 if above == state.above {
6952 let end_row = if above {
6953 DisplayRow(0)
6954 } else {
6955 display_map.max_point().row()
6956 };
6957
6958 'outer: for selection in selections {
6959 if selection.id == last_added_selection {
6960 let range = selection.display_range(&display_map).sorted();
6961 debug_assert_eq!(range.start.row(), range.end.row());
6962 let mut row = range.start.row();
6963 let positions =
6964 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6965 px(start)..px(end)
6966 } else {
6967 let start_x =
6968 display_map.x_for_display_point(range.start, &text_layout_details);
6969 let end_x =
6970 display_map.x_for_display_point(range.end, &text_layout_details);
6971 start_x.min(end_x)..start_x.max(end_x)
6972 };
6973
6974 while row != end_row {
6975 if above {
6976 row.0 -= 1;
6977 } else {
6978 row.0 += 1;
6979 }
6980
6981 if let Some(new_selection) = self.selections.build_columnar_selection(
6982 &display_map,
6983 row,
6984 &positions,
6985 selection.reversed,
6986 &text_layout_details,
6987 ) {
6988 state.stack.push(new_selection.id);
6989 if above {
6990 new_selections.push(new_selection);
6991 new_selections.push(selection);
6992 } else {
6993 new_selections.push(selection);
6994 new_selections.push(new_selection);
6995 }
6996
6997 continue 'outer;
6998 }
6999 }
7000 }
7001
7002 new_selections.push(selection);
7003 }
7004 } else {
7005 new_selections = selections;
7006 new_selections.retain(|s| s.id != last_added_selection);
7007 state.stack.pop();
7008 }
7009
7010 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7011 s.select(new_selections);
7012 });
7013 if state.stack.len() > 1 {
7014 self.add_selections_state = Some(state);
7015 }
7016 }
7017
7018 pub fn select_next_match_internal(
7019 &mut self,
7020 display_map: &DisplaySnapshot,
7021 replace_newest: bool,
7022 autoscroll: Option<Autoscroll>,
7023 cx: &mut ViewContext<Self>,
7024 ) -> Result<()> {
7025 fn select_next_match_ranges(
7026 this: &mut Editor,
7027 range: Range<usize>,
7028 replace_newest: bool,
7029 auto_scroll: Option<Autoscroll>,
7030 cx: &mut ViewContext<Editor>,
7031 ) {
7032 this.unfold_ranges([range.clone()], false, true, cx);
7033 this.change_selections(auto_scroll, cx, |s| {
7034 if replace_newest {
7035 s.delete(s.newest_anchor().id);
7036 }
7037 s.insert_range(range.clone());
7038 });
7039 }
7040
7041 let buffer = &display_map.buffer_snapshot;
7042 let mut selections = self.selections.all::<usize>(cx);
7043 if let Some(mut select_next_state) = self.select_next_state.take() {
7044 let query = &select_next_state.query;
7045 if !select_next_state.done {
7046 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7047 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7048 let mut next_selected_range = None;
7049
7050 let bytes_after_last_selection =
7051 buffer.bytes_in_range(last_selection.end..buffer.len());
7052 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7053 let query_matches = query
7054 .stream_find_iter(bytes_after_last_selection)
7055 .map(|result| (last_selection.end, result))
7056 .chain(
7057 query
7058 .stream_find_iter(bytes_before_first_selection)
7059 .map(|result| (0, result)),
7060 );
7061
7062 for (start_offset, query_match) in query_matches {
7063 let query_match = query_match.unwrap(); // can only fail due to I/O
7064 let offset_range =
7065 start_offset + query_match.start()..start_offset + query_match.end();
7066 let display_range = offset_range.start.to_display_point(&display_map)
7067 ..offset_range.end.to_display_point(&display_map);
7068
7069 if !select_next_state.wordwise
7070 || (!movement::is_inside_word(&display_map, display_range.start)
7071 && !movement::is_inside_word(&display_map, display_range.end))
7072 {
7073 // TODO: This is n^2, because we might check all the selections
7074 if !selections
7075 .iter()
7076 .any(|selection| selection.range().overlaps(&offset_range))
7077 {
7078 next_selected_range = Some(offset_range);
7079 break;
7080 }
7081 }
7082 }
7083
7084 if let Some(next_selected_range) = next_selected_range {
7085 select_next_match_ranges(
7086 self,
7087 next_selected_range,
7088 replace_newest,
7089 autoscroll,
7090 cx,
7091 );
7092 } else {
7093 select_next_state.done = true;
7094 }
7095 }
7096
7097 self.select_next_state = Some(select_next_state);
7098 } else {
7099 let mut only_carets = true;
7100 let mut same_text_selected = true;
7101 let mut selected_text = None;
7102
7103 let mut selections_iter = selections.iter().peekable();
7104 while let Some(selection) = selections_iter.next() {
7105 if selection.start != selection.end {
7106 only_carets = false;
7107 }
7108
7109 if same_text_selected {
7110 if selected_text.is_none() {
7111 selected_text =
7112 Some(buffer.text_for_range(selection.range()).collect::<String>());
7113 }
7114
7115 if let Some(next_selection) = selections_iter.peek() {
7116 if next_selection.range().len() == selection.range().len() {
7117 let next_selected_text = buffer
7118 .text_for_range(next_selection.range())
7119 .collect::<String>();
7120 if Some(next_selected_text) != selected_text {
7121 same_text_selected = false;
7122 selected_text = None;
7123 }
7124 } else {
7125 same_text_selected = false;
7126 selected_text = None;
7127 }
7128 }
7129 }
7130 }
7131
7132 if only_carets {
7133 for selection in &mut selections {
7134 let word_range = movement::surrounding_word(
7135 &display_map,
7136 selection.start.to_display_point(&display_map),
7137 );
7138 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7139 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7140 selection.goal = SelectionGoal::None;
7141 selection.reversed = false;
7142 select_next_match_ranges(
7143 self,
7144 selection.start..selection.end,
7145 replace_newest,
7146 autoscroll,
7147 cx,
7148 );
7149 }
7150
7151 if selections.len() == 1 {
7152 let selection = selections
7153 .last()
7154 .expect("ensured that there's only one selection");
7155 let query = buffer
7156 .text_for_range(selection.start..selection.end)
7157 .collect::<String>();
7158 let is_empty = query.is_empty();
7159 let select_state = SelectNextState {
7160 query: AhoCorasick::new(&[query])?,
7161 wordwise: true,
7162 done: is_empty,
7163 };
7164 self.select_next_state = Some(select_state);
7165 } else {
7166 self.select_next_state = None;
7167 }
7168 } else if let Some(selected_text) = selected_text {
7169 self.select_next_state = Some(SelectNextState {
7170 query: AhoCorasick::new(&[selected_text])?,
7171 wordwise: false,
7172 done: false,
7173 });
7174 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7175 }
7176 }
7177 Ok(())
7178 }
7179
7180 pub fn select_all_matches(
7181 &mut self,
7182 _action: &SelectAllMatches,
7183 cx: &mut ViewContext<Self>,
7184 ) -> Result<()> {
7185 self.push_to_selection_history();
7186 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7187
7188 self.select_next_match_internal(&display_map, false, None, cx)?;
7189 let Some(select_next_state) = self.select_next_state.as_mut() else {
7190 return Ok(());
7191 };
7192 if select_next_state.done {
7193 return Ok(());
7194 }
7195
7196 let mut new_selections = self.selections.all::<usize>(cx);
7197
7198 let buffer = &display_map.buffer_snapshot;
7199 let query_matches = select_next_state
7200 .query
7201 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7202
7203 for query_match in query_matches {
7204 let query_match = query_match.unwrap(); // can only fail due to I/O
7205 let offset_range = query_match.start()..query_match.end();
7206 let display_range = offset_range.start.to_display_point(&display_map)
7207 ..offset_range.end.to_display_point(&display_map);
7208
7209 if !select_next_state.wordwise
7210 || (!movement::is_inside_word(&display_map, display_range.start)
7211 && !movement::is_inside_word(&display_map, display_range.end))
7212 {
7213 self.selections.change_with(cx, |selections| {
7214 new_selections.push(Selection {
7215 id: selections.new_selection_id(),
7216 start: offset_range.start,
7217 end: offset_range.end,
7218 reversed: false,
7219 goal: SelectionGoal::None,
7220 });
7221 });
7222 }
7223 }
7224
7225 new_selections.sort_by_key(|selection| selection.start);
7226 let mut ix = 0;
7227 while ix + 1 < new_selections.len() {
7228 let current_selection = &new_selections[ix];
7229 let next_selection = &new_selections[ix + 1];
7230 if current_selection.range().overlaps(&next_selection.range()) {
7231 if current_selection.id < next_selection.id {
7232 new_selections.remove(ix + 1);
7233 } else {
7234 new_selections.remove(ix);
7235 }
7236 } else {
7237 ix += 1;
7238 }
7239 }
7240
7241 select_next_state.done = true;
7242 self.unfold_ranges(
7243 new_selections.iter().map(|selection| selection.range()),
7244 false,
7245 false,
7246 cx,
7247 );
7248 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7249 selections.select(new_selections)
7250 });
7251
7252 Ok(())
7253 }
7254
7255 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7256 self.push_to_selection_history();
7257 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7258 self.select_next_match_internal(
7259 &display_map,
7260 action.replace_newest,
7261 Some(Autoscroll::newest()),
7262 cx,
7263 )?;
7264 Ok(())
7265 }
7266
7267 pub fn select_previous(
7268 &mut self,
7269 action: &SelectPrevious,
7270 cx: &mut ViewContext<Self>,
7271 ) -> Result<()> {
7272 self.push_to_selection_history();
7273 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7274 let buffer = &display_map.buffer_snapshot;
7275 let mut selections = self.selections.all::<usize>(cx);
7276 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7277 let query = &select_prev_state.query;
7278 if !select_prev_state.done {
7279 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7280 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7281 let mut next_selected_range = None;
7282 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7283 let bytes_before_last_selection =
7284 buffer.reversed_bytes_in_range(0..last_selection.start);
7285 let bytes_after_first_selection =
7286 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7287 let query_matches = query
7288 .stream_find_iter(bytes_before_last_selection)
7289 .map(|result| (last_selection.start, result))
7290 .chain(
7291 query
7292 .stream_find_iter(bytes_after_first_selection)
7293 .map(|result| (buffer.len(), result)),
7294 );
7295 for (end_offset, query_match) in query_matches {
7296 let query_match = query_match.unwrap(); // can only fail due to I/O
7297 let offset_range =
7298 end_offset - query_match.end()..end_offset - query_match.start();
7299 let display_range = offset_range.start.to_display_point(&display_map)
7300 ..offset_range.end.to_display_point(&display_map);
7301
7302 if !select_prev_state.wordwise
7303 || (!movement::is_inside_word(&display_map, display_range.start)
7304 && !movement::is_inside_word(&display_map, display_range.end))
7305 {
7306 next_selected_range = Some(offset_range);
7307 break;
7308 }
7309 }
7310
7311 if let Some(next_selected_range) = next_selected_range {
7312 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7313 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7314 if action.replace_newest {
7315 s.delete(s.newest_anchor().id);
7316 }
7317 s.insert_range(next_selected_range);
7318 });
7319 } else {
7320 select_prev_state.done = true;
7321 }
7322 }
7323
7324 self.select_prev_state = Some(select_prev_state);
7325 } else {
7326 let mut only_carets = true;
7327 let mut same_text_selected = true;
7328 let mut selected_text = None;
7329
7330 let mut selections_iter = selections.iter().peekable();
7331 while let Some(selection) = selections_iter.next() {
7332 if selection.start != selection.end {
7333 only_carets = false;
7334 }
7335
7336 if same_text_selected {
7337 if selected_text.is_none() {
7338 selected_text =
7339 Some(buffer.text_for_range(selection.range()).collect::<String>());
7340 }
7341
7342 if let Some(next_selection) = selections_iter.peek() {
7343 if next_selection.range().len() == selection.range().len() {
7344 let next_selected_text = buffer
7345 .text_for_range(next_selection.range())
7346 .collect::<String>();
7347 if Some(next_selected_text) != selected_text {
7348 same_text_selected = false;
7349 selected_text = None;
7350 }
7351 } else {
7352 same_text_selected = false;
7353 selected_text = None;
7354 }
7355 }
7356 }
7357 }
7358
7359 if only_carets {
7360 for selection in &mut selections {
7361 let word_range = movement::surrounding_word(
7362 &display_map,
7363 selection.start.to_display_point(&display_map),
7364 );
7365 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7366 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7367 selection.goal = SelectionGoal::None;
7368 selection.reversed = false;
7369 }
7370 if selections.len() == 1 {
7371 let selection = selections
7372 .last()
7373 .expect("ensured that there's only one selection");
7374 let query = buffer
7375 .text_for_range(selection.start..selection.end)
7376 .collect::<String>();
7377 let is_empty = query.is_empty();
7378 let select_state = SelectNextState {
7379 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7380 wordwise: true,
7381 done: is_empty,
7382 };
7383 self.select_prev_state = Some(select_state);
7384 } else {
7385 self.select_prev_state = None;
7386 }
7387
7388 self.unfold_ranges(
7389 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7390 false,
7391 true,
7392 cx,
7393 );
7394 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7395 s.select(selections);
7396 });
7397 } else if let Some(selected_text) = selected_text {
7398 self.select_prev_state = Some(SelectNextState {
7399 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7400 wordwise: false,
7401 done: false,
7402 });
7403 self.select_previous(action, cx)?;
7404 }
7405 }
7406 Ok(())
7407 }
7408
7409 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7410 let text_layout_details = &self.text_layout_details(cx);
7411 self.transact(cx, |this, cx| {
7412 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7413 let mut edits = Vec::new();
7414 let mut selection_edit_ranges = Vec::new();
7415 let mut last_toggled_row = None;
7416 let snapshot = this.buffer.read(cx).read(cx);
7417 let empty_str: Arc<str> = "".into();
7418 let mut suffixes_inserted = Vec::new();
7419
7420 fn comment_prefix_range(
7421 snapshot: &MultiBufferSnapshot,
7422 row: MultiBufferRow,
7423 comment_prefix: &str,
7424 comment_prefix_whitespace: &str,
7425 ) -> Range<Point> {
7426 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7427
7428 let mut line_bytes = snapshot
7429 .bytes_in_range(start..snapshot.max_point())
7430 .flatten()
7431 .copied();
7432
7433 // If this line currently begins with the line comment prefix, then record
7434 // the range containing the prefix.
7435 if line_bytes
7436 .by_ref()
7437 .take(comment_prefix.len())
7438 .eq(comment_prefix.bytes())
7439 {
7440 // Include any whitespace that matches the comment prefix.
7441 let matching_whitespace_len = line_bytes
7442 .zip(comment_prefix_whitespace.bytes())
7443 .take_while(|(a, b)| a == b)
7444 .count() as u32;
7445 let end = Point::new(
7446 start.row,
7447 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7448 );
7449 start..end
7450 } else {
7451 start..start
7452 }
7453 }
7454
7455 fn comment_suffix_range(
7456 snapshot: &MultiBufferSnapshot,
7457 row: MultiBufferRow,
7458 comment_suffix: &str,
7459 comment_suffix_has_leading_space: bool,
7460 ) -> Range<Point> {
7461 let end = Point::new(row.0, snapshot.line_len(row));
7462 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7463
7464 let mut line_end_bytes = snapshot
7465 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7466 .flatten()
7467 .copied();
7468
7469 let leading_space_len = if suffix_start_column > 0
7470 && line_end_bytes.next() == Some(b' ')
7471 && comment_suffix_has_leading_space
7472 {
7473 1
7474 } else {
7475 0
7476 };
7477
7478 // If this line currently begins with the line comment prefix, then record
7479 // the range containing the prefix.
7480 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7481 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7482 start..end
7483 } else {
7484 end..end
7485 }
7486 }
7487
7488 // TODO: Handle selections that cross excerpts
7489 for selection in &mut selections {
7490 let start_column = snapshot
7491 .indent_size_for_line(MultiBufferRow(selection.start.row))
7492 .len;
7493 let language = if let Some(language) =
7494 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7495 {
7496 language
7497 } else {
7498 continue;
7499 };
7500
7501 selection_edit_ranges.clear();
7502
7503 // If multiple selections contain a given row, avoid processing that
7504 // row more than once.
7505 let mut start_row = MultiBufferRow(selection.start.row);
7506 if last_toggled_row == Some(start_row) {
7507 start_row = start_row.next_row();
7508 }
7509 let end_row =
7510 if selection.end.row > selection.start.row && selection.end.column == 0 {
7511 MultiBufferRow(selection.end.row - 1)
7512 } else {
7513 MultiBufferRow(selection.end.row)
7514 };
7515 last_toggled_row = Some(end_row);
7516
7517 if start_row > end_row {
7518 continue;
7519 }
7520
7521 // If the language has line comments, toggle those.
7522 let full_comment_prefixes = language.line_comment_prefixes();
7523 if !full_comment_prefixes.is_empty() {
7524 let first_prefix = full_comment_prefixes
7525 .first()
7526 .expect("prefixes is non-empty");
7527 let prefix_trimmed_lengths = full_comment_prefixes
7528 .iter()
7529 .map(|p| p.trim_end_matches(' ').len())
7530 .collect::<SmallVec<[usize; 4]>>();
7531
7532 let mut all_selection_lines_are_comments = true;
7533
7534 for row in start_row.0..=end_row.0 {
7535 let row = MultiBufferRow(row);
7536 if start_row < end_row && snapshot.is_line_blank(row) {
7537 continue;
7538 }
7539
7540 let prefix_range = full_comment_prefixes
7541 .iter()
7542 .zip(prefix_trimmed_lengths.iter().copied())
7543 .map(|(prefix, trimmed_prefix_len)| {
7544 comment_prefix_range(
7545 snapshot.deref(),
7546 row,
7547 &prefix[..trimmed_prefix_len],
7548 &prefix[trimmed_prefix_len..],
7549 )
7550 })
7551 .max_by_key(|range| range.end.column - range.start.column)
7552 .expect("prefixes is non-empty");
7553
7554 if prefix_range.is_empty() {
7555 all_selection_lines_are_comments = false;
7556 }
7557
7558 selection_edit_ranges.push(prefix_range);
7559 }
7560
7561 if all_selection_lines_are_comments {
7562 edits.extend(
7563 selection_edit_ranges
7564 .iter()
7565 .cloned()
7566 .map(|range| (range, empty_str.clone())),
7567 );
7568 } else {
7569 let min_column = selection_edit_ranges
7570 .iter()
7571 .map(|range| range.start.column)
7572 .min()
7573 .unwrap_or(0);
7574 edits.extend(selection_edit_ranges.iter().map(|range| {
7575 let position = Point::new(range.start.row, min_column);
7576 (position..position, first_prefix.clone())
7577 }));
7578 }
7579 } else if let Some((full_comment_prefix, comment_suffix)) =
7580 language.block_comment_delimiters()
7581 {
7582 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7583 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7584 let prefix_range = comment_prefix_range(
7585 snapshot.deref(),
7586 start_row,
7587 comment_prefix,
7588 comment_prefix_whitespace,
7589 );
7590 let suffix_range = comment_suffix_range(
7591 snapshot.deref(),
7592 end_row,
7593 comment_suffix.trim_start_matches(' '),
7594 comment_suffix.starts_with(' '),
7595 );
7596
7597 if prefix_range.is_empty() || suffix_range.is_empty() {
7598 edits.push((
7599 prefix_range.start..prefix_range.start,
7600 full_comment_prefix.clone(),
7601 ));
7602 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7603 suffixes_inserted.push((end_row, comment_suffix.len()));
7604 } else {
7605 edits.push((prefix_range, empty_str.clone()));
7606 edits.push((suffix_range, empty_str.clone()));
7607 }
7608 } else {
7609 continue;
7610 }
7611 }
7612
7613 drop(snapshot);
7614 this.buffer.update(cx, |buffer, cx| {
7615 buffer.edit(edits, None, cx);
7616 });
7617
7618 // Adjust selections so that they end before any comment suffixes that
7619 // were inserted.
7620 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7621 let mut selections = this.selections.all::<Point>(cx);
7622 let snapshot = this.buffer.read(cx).read(cx);
7623 for selection in &mut selections {
7624 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7625 match row.cmp(&MultiBufferRow(selection.end.row)) {
7626 Ordering::Less => {
7627 suffixes_inserted.next();
7628 continue;
7629 }
7630 Ordering::Greater => break,
7631 Ordering::Equal => {
7632 if selection.end.column == snapshot.line_len(row) {
7633 if selection.is_empty() {
7634 selection.start.column -= suffix_len as u32;
7635 }
7636 selection.end.column -= suffix_len as u32;
7637 }
7638 break;
7639 }
7640 }
7641 }
7642 }
7643
7644 drop(snapshot);
7645 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7646
7647 let selections = this.selections.all::<Point>(cx);
7648 let selections_on_single_row = selections.windows(2).all(|selections| {
7649 selections[0].start.row == selections[1].start.row
7650 && selections[0].end.row == selections[1].end.row
7651 && selections[0].start.row == selections[0].end.row
7652 });
7653 let selections_selecting = selections
7654 .iter()
7655 .any(|selection| selection.start != selection.end);
7656 let advance_downwards = action.advance_downwards
7657 && selections_on_single_row
7658 && !selections_selecting
7659 && this.mode != EditorMode::SingleLine;
7660
7661 if advance_downwards {
7662 let snapshot = this.buffer.read(cx).snapshot(cx);
7663
7664 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7665 s.move_cursors_with(|display_snapshot, display_point, _| {
7666 let mut point = display_point.to_point(display_snapshot);
7667 point.row += 1;
7668 point = snapshot.clip_point(point, Bias::Left);
7669 let display_point = point.to_display_point(display_snapshot);
7670 let goal = SelectionGoal::HorizontalPosition(
7671 display_snapshot
7672 .x_for_display_point(display_point, &text_layout_details)
7673 .into(),
7674 );
7675 (display_point, goal)
7676 })
7677 });
7678 }
7679 });
7680 }
7681
7682 pub fn select_larger_syntax_node(
7683 &mut self,
7684 _: &SelectLargerSyntaxNode,
7685 cx: &mut ViewContext<Self>,
7686 ) {
7687 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7688 let buffer = self.buffer.read(cx).snapshot(cx);
7689 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7690
7691 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7692 let mut selected_larger_node = false;
7693 let new_selections = old_selections
7694 .iter()
7695 .map(|selection| {
7696 let old_range = selection.start..selection.end;
7697 let mut new_range = old_range.clone();
7698 while let Some(containing_range) =
7699 buffer.range_for_syntax_ancestor(new_range.clone())
7700 {
7701 new_range = containing_range;
7702 if !display_map.intersects_fold(new_range.start)
7703 && !display_map.intersects_fold(new_range.end)
7704 {
7705 break;
7706 }
7707 }
7708
7709 selected_larger_node |= new_range != old_range;
7710 Selection {
7711 id: selection.id,
7712 start: new_range.start,
7713 end: new_range.end,
7714 goal: SelectionGoal::None,
7715 reversed: selection.reversed,
7716 }
7717 })
7718 .collect::<Vec<_>>();
7719
7720 if selected_larger_node {
7721 stack.push(old_selections);
7722 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7723 s.select(new_selections);
7724 });
7725 }
7726 self.select_larger_syntax_node_stack = stack;
7727 }
7728
7729 pub fn select_smaller_syntax_node(
7730 &mut self,
7731 _: &SelectSmallerSyntaxNode,
7732 cx: &mut ViewContext<Self>,
7733 ) {
7734 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7735 if let Some(selections) = stack.pop() {
7736 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7737 s.select(selections.to_vec());
7738 });
7739 }
7740 self.select_larger_syntax_node_stack = stack;
7741 }
7742
7743 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7744 let project = self.project.clone();
7745 cx.spawn(|this, mut cx| async move {
7746 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7747 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7748 }) else {
7749 return;
7750 };
7751
7752 let Some(project) = project else {
7753 return;
7754 };
7755 if project
7756 .update(&mut cx, |this, _| this.is_remote())
7757 .unwrap_or(true)
7758 {
7759 // Do not display any test indicators in remote projects.
7760 return;
7761 }
7762 let new_rows =
7763 cx.background_executor()
7764 .spawn({
7765 let snapshot = display_snapshot.clone();
7766 async move {
7767 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7768 }
7769 })
7770 .await;
7771 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7772
7773 this.update(&mut cx, |this, _| {
7774 this.clear_tasks();
7775 for (key, value) in rows {
7776 this.insert_tasks(key, value);
7777 }
7778 })
7779 .ok();
7780 })
7781 }
7782 fn fetch_runnable_ranges(
7783 snapshot: &DisplaySnapshot,
7784 range: Range<Anchor>,
7785 ) -> Vec<language::RunnableRange> {
7786 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7787 }
7788
7789 fn runnable_rows(
7790 project: Model<Project>,
7791 snapshot: DisplaySnapshot,
7792 runnable_ranges: Vec<RunnableRange>,
7793 mut cx: AsyncWindowContext,
7794 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7795 runnable_ranges
7796 .into_iter()
7797 .filter_map(|mut runnable| {
7798 let (tasks, _) = cx
7799 .update(|cx| {
7800 Self::resolve_runnable(project.clone(), &mut runnable.runnable, cx)
7801 })
7802 .ok()?;
7803 if tasks.is_empty() {
7804 return None;
7805 }
7806
7807 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7808
7809 let row = snapshot
7810 .buffer_snapshot
7811 .buffer_line_for_row(MultiBufferRow(point.row))?
7812 .1
7813 .start
7814 .row;
7815
7816 Some((
7817 (runnable.buffer_id, row),
7818 (
7819 runnable.run_range.start,
7820 RunnableTasks {
7821 templates: tasks,
7822 column: point.column,
7823 extra_variables: runnable.extra_captures,
7824 },
7825 ),
7826 ))
7827 })
7828 .collect()
7829 }
7830
7831 fn resolve_runnable(
7832 project: Model<Project>,
7833 runnable: &mut Runnable,
7834 cx: &WindowContext<'_>,
7835 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7836 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7837 let worktree_id = project
7838 .buffer_for_id(runnable.buffer)
7839 .and_then(|buffer| buffer.read(cx).file())
7840 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7841
7842 (project.task_inventory().clone(), worktree_id)
7843 });
7844
7845 let inventory = inventory.read(cx);
7846 let tags = mem::take(&mut runnable.tags);
7847 let mut tags: Vec<_> = tags
7848 .into_iter()
7849 .flat_map(|tag| {
7850 let tag = tag.0.clone();
7851 inventory
7852 .list_tasks(Some(runnable.language.clone()), worktree_id)
7853 .into_iter()
7854 .filter(move |(_, template)| {
7855 template.tags.iter().any(|source_tag| source_tag == &tag)
7856 })
7857 })
7858 .sorted_by_key(|(kind, _)| kind.to_owned())
7859 .collect();
7860 if let Some((leading_tag_source, _)) = tags.first() {
7861 // Strongest source wins; if we have worktree tag binding, prefer that to
7862 // global and language bindings;
7863 // if we have a global binding, prefer that to language binding.
7864 let first_mismatch = tags
7865 .iter()
7866 .position(|(tag_source, _)| tag_source != leading_tag_source);
7867 if let Some(index) = first_mismatch {
7868 tags.truncate(index);
7869 }
7870 }
7871
7872 (tags, worktree_id)
7873 }
7874
7875 pub fn move_to_enclosing_bracket(
7876 &mut self,
7877 _: &MoveToEnclosingBracket,
7878 cx: &mut ViewContext<Self>,
7879 ) {
7880 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7881 s.move_offsets_with(|snapshot, selection| {
7882 let Some(enclosing_bracket_ranges) =
7883 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7884 else {
7885 return;
7886 };
7887
7888 let mut best_length = usize::MAX;
7889 let mut best_inside = false;
7890 let mut best_in_bracket_range = false;
7891 let mut best_destination = None;
7892 for (open, close) in enclosing_bracket_ranges {
7893 let close = close.to_inclusive();
7894 let length = close.end() - open.start;
7895 let inside = selection.start >= open.end && selection.end <= *close.start();
7896 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7897 || close.contains(&selection.head());
7898
7899 // If best is next to a bracket and current isn't, skip
7900 if !in_bracket_range && best_in_bracket_range {
7901 continue;
7902 }
7903
7904 // Prefer smaller lengths unless best is inside and current isn't
7905 if length > best_length && (best_inside || !inside) {
7906 continue;
7907 }
7908
7909 best_length = length;
7910 best_inside = inside;
7911 best_in_bracket_range = in_bracket_range;
7912 best_destination = Some(
7913 if close.contains(&selection.start) && close.contains(&selection.end) {
7914 if inside {
7915 open.end
7916 } else {
7917 open.start
7918 }
7919 } else {
7920 if inside {
7921 *close.start()
7922 } else {
7923 *close.end()
7924 }
7925 },
7926 );
7927 }
7928
7929 if let Some(destination) = best_destination {
7930 selection.collapse_to(destination, SelectionGoal::None);
7931 }
7932 })
7933 });
7934 }
7935
7936 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7937 self.end_selection(cx);
7938 self.selection_history.mode = SelectionHistoryMode::Undoing;
7939 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7940 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7941 self.select_next_state = entry.select_next_state;
7942 self.select_prev_state = entry.select_prev_state;
7943 self.add_selections_state = entry.add_selections_state;
7944 self.request_autoscroll(Autoscroll::newest(), cx);
7945 }
7946 self.selection_history.mode = SelectionHistoryMode::Normal;
7947 }
7948
7949 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7950 self.end_selection(cx);
7951 self.selection_history.mode = SelectionHistoryMode::Redoing;
7952 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7953 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7954 self.select_next_state = entry.select_next_state;
7955 self.select_prev_state = entry.select_prev_state;
7956 self.add_selections_state = entry.add_selections_state;
7957 self.request_autoscroll(Autoscroll::newest(), cx);
7958 }
7959 self.selection_history.mode = SelectionHistoryMode::Normal;
7960 }
7961
7962 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7963 let selections = self.selections.disjoint_anchors();
7964
7965 let lines = if action.lines == 0 { 3 } else { action.lines };
7966
7967 self.buffer.update(cx, |buffer, cx| {
7968 buffer.expand_excerpts(
7969 selections
7970 .into_iter()
7971 .map(|selection| selection.head().excerpt_id)
7972 .dedup(),
7973 lines,
7974 cx,
7975 )
7976 })
7977 }
7978
7979 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7980 self.buffer
7981 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7982 }
7983
7984 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7985 self.go_to_diagnostic_impl(Direction::Next, cx)
7986 }
7987
7988 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7989 self.go_to_diagnostic_impl(Direction::Prev, cx)
7990 }
7991
7992 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7993 let buffer = self.buffer.read(cx).snapshot(cx);
7994 let selection = self.selections.newest::<usize>(cx);
7995
7996 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7997 if direction == Direction::Next {
7998 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7999 let (group_id, jump_to) = popover.activation_info();
8000 if self.activate_diagnostics(group_id, cx) {
8001 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8002 let mut new_selection = s.newest_anchor().clone();
8003 new_selection.collapse_to(jump_to, SelectionGoal::None);
8004 s.select_anchors(vec![new_selection.clone()]);
8005 });
8006 }
8007 return;
8008 }
8009 }
8010
8011 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8012 active_diagnostics
8013 .primary_range
8014 .to_offset(&buffer)
8015 .to_inclusive()
8016 });
8017 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8018 if active_primary_range.contains(&selection.head()) {
8019 *active_primary_range.start()
8020 } else {
8021 selection.head()
8022 }
8023 } else {
8024 selection.head()
8025 };
8026 let snapshot = self.snapshot(cx);
8027 loop {
8028 let diagnostics = if direction == Direction::Prev {
8029 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8030 } else {
8031 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8032 }
8033 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8034 let group = diagnostics
8035 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8036 // be sorted in a stable way
8037 // skip until we are at current active diagnostic, if it exists
8038 .skip_while(|entry| {
8039 (match direction {
8040 Direction::Prev => entry.range.start >= search_start,
8041 Direction::Next => entry.range.start <= search_start,
8042 }) && self
8043 .active_diagnostics
8044 .as_ref()
8045 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8046 })
8047 .find_map(|entry| {
8048 if entry.diagnostic.is_primary
8049 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8050 && !entry.range.is_empty()
8051 // if we match with the active diagnostic, skip it
8052 && Some(entry.diagnostic.group_id)
8053 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8054 {
8055 Some((entry.range, entry.diagnostic.group_id))
8056 } else {
8057 None
8058 }
8059 });
8060
8061 if let Some((primary_range, group_id)) = group {
8062 if self.activate_diagnostics(group_id, cx) {
8063 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8064 s.select(vec![Selection {
8065 id: selection.id,
8066 start: primary_range.start,
8067 end: primary_range.start,
8068 reversed: false,
8069 goal: SelectionGoal::None,
8070 }]);
8071 });
8072 }
8073 break;
8074 } else {
8075 // Cycle around to the start of the buffer, potentially moving back to the start of
8076 // the currently active diagnostic.
8077 active_primary_range.take();
8078 if direction == Direction::Prev {
8079 if search_start == buffer.len() {
8080 break;
8081 } else {
8082 search_start = buffer.len();
8083 }
8084 } else if search_start == 0 {
8085 break;
8086 } else {
8087 search_start = 0;
8088 }
8089 }
8090 }
8091 }
8092
8093 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8094 let snapshot = self
8095 .display_map
8096 .update(cx, |display_map, cx| display_map.snapshot(cx));
8097 let selection = self.selections.newest::<Point>(cx);
8098
8099 if !self.seek_in_direction(
8100 &snapshot,
8101 selection.head(),
8102 false,
8103 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8104 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8105 ),
8106 cx,
8107 ) {
8108 let wrapped_point = Point::zero();
8109 self.seek_in_direction(
8110 &snapshot,
8111 wrapped_point,
8112 true,
8113 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8114 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8115 ),
8116 cx,
8117 );
8118 }
8119 }
8120
8121 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8122 let snapshot = self
8123 .display_map
8124 .update(cx, |display_map, cx| display_map.snapshot(cx));
8125 let selection = self.selections.newest::<Point>(cx);
8126
8127 if !self.seek_in_direction(
8128 &snapshot,
8129 selection.head(),
8130 false,
8131 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8132 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8133 ),
8134 cx,
8135 ) {
8136 let wrapped_point = snapshot.buffer_snapshot.max_point();
8137 self.seek_in_direction(
8138 &snapshot,
8139 wrapped_point,
8140 true,
8141 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8142 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8143 ),
8144 cx,
8145 );
8146 }
8147 }
8148
8149 fn seek_in_direction(
8150 &mut self,
8151 snapshot: &DisplaySnapshot,
8152 initial_point: Point,
8153 is_wrapped: bool,
8154 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8155 cx: &mut ViewContext<Editor>,
8156 ) -> bool {
8157 let display_point = initial_point.to_display_point(snapshot);
8158 let mut hunks = hunks
8159 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8160 .filter(|hunk| {
8161 if is_wrapped {
8162 true
8163 } else {
8164 !hunk.contains_display_row(display_point.row())
8165 }
8166 })
8167 .dedup();
8168
8169 if let Some(hunk) = hunks.next() {
8170 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8171 let row = hunk.start_display_row();
8172 let point = DisplayPoint::new(row, 0);
8173 s.select_display_ranges([point..point]);
8174 });
8175
8176 true
8177 } else {
8178 false
8179 }
8180 }
8181
8182 pub fn go_to_definition(
8183 &mut self,
8184 _: &GoToDefinition,
8185 cx: &mut ViewContext<Self>,
8186 ) -> Task<Result<bool>> {
8187 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8188 }
8189
8190 pub fn go_to_implementation(
8191 &mut self,
8192 _: &GoToImplementation,
8193 cx: &mut ViewContext<Self>,
8194 ) -> Task<Result<bool>> {
8195 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8196 }
8197
8198 pub fn go_to_implementation_split(
8199 &mut self,
8200 _: &GoToImplementationSplit,
8201 cx: &mut ViewContext<Self>,
8202 ) -> Task<Result<bool>> {
8203 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8204 }
8205
8206 pub fn go_to_type_definition(
8207 &mut self,
8208 _: &GoToTypeDefinition,
8209 cx: &mut ViewContext<Self>,
8210 ) -> Task<Result<bool>> {
8211 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8212 }
8213
8214 pub fn go_to_definition_split(
8215 &mut self,
8216 _: &GoToDefinitionSplit,
8217 cx: &mut ViewContext<Self>,
8218 ) -> Task<Result<bool>> {
8219 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8220 }
8221
8222 pub fn go_to_type_definition_split(
8223 &mut self,
8224 _: &GoToTypeDefinitionSplit,
8225 cx: &mut ViewContext<Self>,
8226 ) -> Task<Result<bool>> {
8227 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8228 }
8229
8230 fn go_to_definition_of_kind(
8231 &mut self,
8232 kind: GotoDefinitionKind,
8233 split: bool,
8234 cx: &mut ViewContext<Self>,
8235 ) -> Task<Result<bool>> {
8236 let Some(workspace) = self.workspace() else {
8237 return Task::ready(Ok(false));
8238 };
8239 let buffer = self.buffer.read(cx);
8240 let head = self.selections.newest::<usize>(cx).head();
8241 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8242 text_anchor
8243 } else {
8244 return Task::ready(Ok(false));
8245 };
8246
8247 let project = workspace.read(cx).project().clone();
8248 let definitions = project.update(cx, |project, cx| match kind {
8249 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8250 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8251 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8252 });
8253
8254 cx.spawn(|editor, mut cx| async move {
8255 let definitions = definitions.await?;
8256 let navigated = editor
8257 .update(&mut cx, |editor, cx| {
8258 editor.navigate_to_hover_links(
8259 Some(kind),
8260 definitions
8261 .into_iter()
8262 .filter(|location| {
8263 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8264 })
8265 .map(HoverLink::Text)
8266 .collect::<Vec<_>>(),
8267 split,
8268 cx,
8269 )
8270 })?
8271 .await?;
8272 anyhow::Ok(navigated)
8273 })
8274 }
8275
8276 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8277 let position = self.selections.newest_anchor().head();
8278 let Some((buffer, buffer_position)) =
8279 self.buffer.read(cx).text_anchor_for_position(position, cx)
8280 else {
8281 return;
8282 };
8283
8284 cx.spawn(|editor, mut cx| async move {
8285 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8286 editor.update(&mut cx, |_, cx| {
8287 cx.open_url(&url);
8288 })
8289 } else {
8290 Ok(())
8291 }
8292 })
8293 .detach();
8294 }
8295
8296 pub(crate) fn navigate_to_hover_links(
8297 &mut self,
8298 kind: Option<GotoDefinitionKind>,
8299 mut definitions: Vec<HoverLink>,
8300 split: bool,
8301 cx: &mut ViewContext<Editor>,
8302 ) -> Task<Result<bool>> {
8303 // If there is one definition, just open it directly
8304 if definitions.len() == 1 {
8305 let definition = definitions.pop().unwrap();
8306 let target_task = match definition {
8307 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8308 HoverLink::InlayHint(lsp_location, server_id) => {
8309 self.compute_target_location(lsp_location, server_id, cx)
8310 }
8311 HoverLink::Url(url) => {
8312 cx.open_url(&url);
8313 Task::ready(Ok(None))
8314 }
8315 };
8316 cx.spawn(|editor, mut cx| async move {
8317 let target = target_task.await.context("target resolution task")?;
8318 if let Some(target) = target {
8319 editor.update(&mut cx, |editor, cx| {
8320 let Some(workspace) = editor.workspace() else {
8321 return false;
8322 };
8323 let pane = workspace.read(cx).active_pane().clone();
8324
8325 let range = target.range.to_offset(target.buffer.read(cx));
8326 let range = editor.range_for_match(&range);
8327 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8328 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8329 s.select_ranges([range]);
8330 });
8331 } else {
8332 cx.window_context().defer(move |cx| {
8333 let target_editor: View<Self> =
8334 workspace.update(cx, |workspace, cx| {
8335 let pane = if split {
8336 workspace.adjacent_pane(cx)
8337 } else {
8338 workspace.active_pane().clone()
8339 };
8340
8341 workspace.open_project_item(pane, target.buffer.clone(), cx)
8342 });
8343 target_editor.update(cx, |target_editor, cx| {
8344 // When selecting a definition in a different buffer, disable the nav history
8345 // to avoid creating a history entry at the previous cursor location.
8346 pane.update(cx, |pane, _| pane.disable_history());
8347 target_editor.change_selections(
8348 Some(Autoscroll::focused()),
8349 cx,
8350 |s| {
8351 s.select_ranges([range]);
8352 },
8353 );
8354 pane.update(cx, |pane, _| pane.enable_history());
8355 });
8356 });
8357 }
8358 true
8359 })
8360 } else {
8361 Ok(false)
8362 }
8363 })
8364 } else if !definitions.is_empty() {
8365 let replica_id = self.replica_id(cx);
8366 cx.spawn(|editor, mut cx| async move {
8367 let (title, location_tasks, workspace) = editor
8368 .update(&mut cx, |editor, cx| {
8369 let tab_kind = match kind {
8370 Some(GotoDefinitionKind::Implementation) => "Implementations",
8371 _ => "Definitions",
8372 };
8373 let title = definitions
8374 .iter()
8375 .find_map(|definition| match definition {
8376 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8377 let buffer = origin.buffer.read(cx);
8378 format!(
8379 "{} for {}",
8380 tab_kind,
8381 buffer
8382 .text_for_range(origin.range.clone())
8383 .collect::<String>()
8384 )
8385 }),
8386 HoverLink::InlayHint(_, _) => None,
8387 HoverLink::Url(_) => None,
8388 })
8389 .unwrap_or(tab_kind.to_string());
8390 let location_tasks = definitions
8391 .into_iter()
8392 .map(|definition| match definition {
8393 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8394 HoverLink::InlayHint(lsp_location, server_id) => {
8395 editor.compute_target_location(lsp_location, server_id, cx)
8396 }
8397 HoverLink::Url(_) => Task::ready(Ok(None)),
8398 })
8399 .collect::<Vec<_>>();
8400 (title, location_tasks, editor.workspace().clone())
8401 })
8402 .context("location tasks preparation")?;
8403
8404 let locations = futures::future::join_all(location_tasks)
8405 .await
8406 .into_iter()
8407 .filter_map(|location| location.transpose())
8408 .collect::<Result<_>>()
8409 .context("location tasks")?;
8410
8411 let Some(workspace) = workspace else {
8412 return Ok(false);
8413 };
8414 let opened = workspace
8415 .update(&mut cx, |workspace, cx| {
8416 Self::open_locations_in_multibuffer(
8417 workspace, locations, replica_id, title, split, cx,
8418 )
8419 })
8420 .ok();
8421
8422 anyhow::Ok(opened.is_some())
8423 })
8424 } else {
8425 Task::ready(Ok(false))
8426 }
8427 }
8428
8429 fn compute_target_location(
8430 &self,
8431 lsp_location: lsp::Location,
8432 server_id: LanguageServerId,
8433 cx: &mut ViewContext<Editor>,
8434 ) -> Task<anyhow::Result<Option<Location>>> {
8435 let Some(project) = self.project.clone() else {
8436 return Task::Ready(Some(Ok(None)));
8437 };
8438
8439 cx.spawn(move |editor, mut cx| async move {
8440 let location_task = editor.update(&mut cx, |editor, cx| {
8441 project.update(cx, |project, cx| {
8442 let language_server_name =
8443 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8444 project
8445 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8446 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8447 });
8448 language_server_name.map(|language_server_name| {
8449 project.open_local_buffer_via_lsp(
8450 lsp_location.uri.clone(),
8451 server_id,
8452 language_server_name,
8453 cx,
8454 )
8455 })
8456 })
8457 })?;
8458 let location = match location_task {
8459 Some(task) => Some({
8460 let target_buffer_handle = task.await.context("open local buffer")?;
8461 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8462 let target_start = target_buffer
8463 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8464 let target_end = target_buffer
8465 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8466 target_buffer.anchor_after(target_start)
8467 ..target_buffer.anchor_before(target_end)
8468 })?;
8469 Location {
8470 buffer: target_buffer_handle,
8471 range,
8472 }
8473 }),
8474 None => None,
8475 };
8476 Ok(location)
8477 })
8478 }
8479
8480 pub fn find_all_references(
8481 &mut self,
8482 _: &FindAllReferences,
8483 cx: &mut ViewContext<Self>,
8484 ) -> Option<Task<Result<()>>> {
8485 let multi_buffer = self.buffer.read(cx);
8486 let selection = self.selections.newest::<usize>(cx);
8487 let head = selection.head();
8488
8489 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8490 let head_anchor = multi_buffer_snapshot.anchor_at(
8491 head,
8492 if head < selection.tail() {
8493 Bias::Right
8494 } else {
8495 Bias::Left
8496 },
8497 );
8498
8499 match self
8500 .find_all_references_task_sources
8501 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8502 {
8503 Ok(_) => {
8504 log::info!(
8505 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8506 );
8507 return None;
8508 }
8509 Err(i) => {
8510 self.find_all_references_task_sources.insert(i, head_anchor);
8511 }
8512 }
8513
8514 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8515 let replica_id = self.replica_id(cx);
8516 let workspace = self.workspace()?;
8517 let project = workspace.read(cx).project().clone();
8518 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8519 Some(cx.spawn(|editor, mut cx| async move {
8520 let _cleanup = defer({
8521 let mut cx = cx.clone();
8522 move || {
8523 let _ = editor.update(&mut cx, |editor, _| {
8524 if let Ok(i) =
8525 editor
8526 .find_all_references_task_sources
8527 .binary_search_by(|anchor| {
8528 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8529 })
8530 {
8531 editor.find_all_references_task_sources.remove(i);
8532 }
8533 });
8534 }
8535 });
8536
8537 let locations = references.await?;
8538 if locations.is_empty() {
8539 return anyhow::Ok(());
8540 }
8541
8542 workspace.update(&mut cx, |workspace, cx| {
8543 let title = locations
8544 .first()
8545 .as_ref()
8546 .map(|location| {
8547 let buffer = location.buffer.read(cx);
8548 format!(
8549 "References to `{}`",
8550 buffer
8551 .text_for_range(location.range.clone())
8552 .collect::<String>()
8553 )
8554 })
8555 .unwrap();
8556 Self::open_locations_in_multibuffer(
8557 workspace, locations, replica_id, title, false, cx,
8558 );
8559 })
8560 }))
8561 }
8562
8563 /// Opens a multibuffer with the given project locations in it
8564 pub fn open_locations_in_multibuffer(
8565 workspace: &mut Workspace,
8566 mut locations: Vec<Location>,
8567 replica_id: ReplicaId,
8568 title: String,
8569 split: bool,
8570 cx: &mut ViewContext<Workspace>,
8571 ) {
8572 // If there are multiple definitions, open them in a multibuffer
8573 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8574 let mut locations = locations.into_iter().peekable();
8575 let mut ranges_to_highlight = Vec::new();
8576 let capability = workspace.project().read(cx).capability();
8577
8578 let excerpt_buffer = cx.new_model(|cx| {
8579 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8580 while let Some(location) = locations.next() {
8581 let buffer = location.buffer.read(cx);
8582 let mut ranges_for_buffer = Vec::new();
8583 let range = location.range.to_offset(buffer);
8584 ranges_for_buffer.push(range.clone());
8585
8586 while let Some(next_location) = locations.peek() {
8587 if next_location.buffer == location.buffer {
8588 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8589 locations.next();
8590 } else {
8591 break;
8592 }
8593 }
8594
8595 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8596 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8597 location.buffer.clone(),
8598 ranges_for_buffer,
8599 DEFAULT_MULTIBUFFER_CONTEXT,
8600 cx,
8601 ))
8602 }
8603
8604 multibuffer.with_title(title)
8605 });
8606
8607 let editor = cx.new_view(|cx| {
8608 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8609 });
8610 editor.update(cx, |editor, cx| {
8611 editor.highlight_background::<Self>(
8612 &ranges_to_highlight,
8613 |theme| theme.editor_highlighted_line_background,
8614 cx,
8615 );
8616 });
8617
8618 let item = Box::new(editor);
8619 let item_id = item.item_id();
8620
8621 if split {
8622 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8623 } else {
8624 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8625 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8626 pane.close_current_preview_item(cx)
8627 } else {
8628 None
8629 }
8630 });
8631 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8632 }
8633 workspace.active_pane().update(cx, |pane, cx| {
8634 pane.set_preview_item_id(Some(item_id), cx);
8635 });
8636 }
8637
8638 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8639 use language::ToOffset as _;
8640
8641 let project = self.project.clone()?;
8642 let selection = self.selections.newest_anchor().clone();
8643 let (cursor_buffer, cursor_buffer_position) = self
8644 .buffer
8645 .read(cx)
8646 .text_anchor_for_position(selection.head(), cx)?;
8647 let (tail_buffer, cursor_buffer_position_end) = self
8648 .buffer
8649 .read(cx)
8650 .text_anchor_for_position(selection.tail(), cx)?;
8651 if tail_buffer != cursor_buffer {
8652 return None;
8653 }
8654
8655 let snapshot = cursor_buffer.read(cx).snapshot();
8656 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8657 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8658 let prepare_rename = project.update(cx, |project, cx| {
8659 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8660 });
8661 drop(snapshot);
8662
8663 Some(cx.spawn(|this, mut cx| async move {
8664 let rename_range = if let Some(range) = prepare_rename.await? {
8665 Some(range)
8666 } else {
8667 this.update(&mut cx, |this, cx| {
8668 let buffer = this.buffer.read(cx).snapshot(cx);
8669 let mut buffer_highlights = this
8670 .document_highlights_for_position(selection.head(), &buffer)
8671 .filter(|highlight| {
8672 highlight.start.excerpt_id == selection.head().excerpt_id
8673 && highlight.end.excerpt_id == selection.head().excerpt_id
8674 });
8675 buffer_highlights
8676 .next()
8677 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8678 })?
8679 };
8680 if let Some(rename_range) = rename_range {
8681 this.update(&mut cx, |this, cx| {
8682 let snapshot = cursor_buffer.read(cx).snapshot();
8683 let rename_buffer_range = rename_range.to_offset(&snapshot);
8684 let cursor_offset_in_rename_range =
8685 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8686 let cursor_offset_in_rename_range_end =
8687 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8688
8689 this.take_rename(false, cx);
8690 let buffer = this.buffer.read(cx).read(cx);
8691 let cursor_offset = selection.head().to_offset(&buffer);
8692 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8693 let rename_end = rename_start + rename_buffer_range.len();
8694 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8695 let mut old_highlight_id = None;
8696 let old_name: Arc<str> = buffer
8697 .chunks(rename_start..rename_end, true)
8698 .map(|chunk| {
8699 if old_highlight_id.is_none() {
8700 old_highlight_id = chunk.syntax_highlight_id;
8701 }
8702 chunk.text
8703 })
8704 .collect::<String>()
8705 .into();
8706
8707 drop(buffer);
8708
8709 // Position the selection in the rename editor so that it matches the current selection.
8710 this.show_local_selections = false;
8711 let rename_editor = cx.new_view(|cx| {
8712 let mut editor = Editor::single_line(cx);
8713 editor.buffer.update(cx, |buffer, cx| {
8714 buffer.edit([(0..0, old_name.clone())], None, cx)
8715 });
8716 let rename_selection_range = match cursor_offset_in_rename_range
8717 .cmp(&cursor_offset_in_rename_range_end)
8718 {
8719 Ordering::Equal => {
8720 editor.select_all(&SelectAll, cx);
8721 return editor;
8722 }
8723 Ordering::Less => {
8724 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8725 }
8726 Ordering::Greater => {
8727 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8728 }
8729 };
8730 if rename_selection_range.end > old_name.len() {
8731 editor.select_all(&SelectAll, cx);
8732 } else {
8733 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8734 s.select_ranges([rename_selection_range]);
8735 });
8736 }
8737 editor
8738 });
8739
8740 let write_highlights =
8741 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8742 let read_highlights =
8743 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8744 let ranges = write_highlights
8745 .iter()
8746 .flat_map(|(_, ranges)| ranges.iter())
8747 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8748 .cloned()
8749 .collect();
8750
8751 this.highlight_text::<Rename>(
8752 ranges,
8753 HighlightStyle {
8754 fade_out: Some(0.6),
8755 ..Default::default()
8756 },
8757 cx,
8758 );
8759 let rename_focus_handle = rename_editor.focus_handle(cx);
8760 cx.focus(&rename_focus_handle);
8761 let block_id = this.insert_blocks(
8762 [BlockProperties {
8763 style: BlockStyle::Flex,
8764 position: range.start,
8765 height: 1,
8766 render: Box::new({
8767 let rename_editor = rename_editor.clone();
8768 move |cx: &mut BlockContext| {
8769 let mut text_style = cx.editor_style.text.clone();
8770 if let Some(highlight_style) = old_highlight_id
8771 .and_then(|h| h.style(&cx.editor_style.syntax))
8772 {
8773 text_style = text_style.highlight(highlight_style);
8774 }
8775 div()
8776 .pl(cx.anchor_x)
8777 .child(EditorElement::new(
8778 &rename_editor,
8779 EditorStyle {
8780 background: cx.theme().system().transparent,
8781 local_player: cx.editor_style.local_player,
8782 text: text_style,
8783 scrollbar_width: cx.editor_style.scrollbar_width,
8784 syntax: cx.editor_style.syntax.clone(),
8785 status: cx.editor_style.status.clone(),
8786 inlay_hints_style: HighlightStyle {
8787 color: Some(cx.theme().status().hint),
8788 font_weight: Some(FontWeight::BOLD),
8789 ..HighlightStyle::default()
8790 },
8791 suggestions_style: HighlightStyle {
8792 color: Some(cx.theme().status().predictive),
8793 ..HighlightStyle::default()
8794 },
8795 },
8796 ))
8797 .into_any_element()
8798 }
8799 }),
8800 disposition: BlockDisposition::Below,
8801 }],
8802 Some(Autoscroll::fit()),
8803 cx,
8804 )[0];
8805 this.pending_rename = Some(RenameState {
8806 range,
8807 old_name,
8808 editor: rename_editor,
8809 block_id,
8810 });
8811 })?;
8812 }
8813
8814 Ok(())
8815 }))
8816 }
8817
8818 pub fn confirm_rename(
8819 &mut self,
8820 _: &ConfirmRename,
8821 cx: &mut ViewContext<Self>,
8822 ) -> Option<Task<Result<()>>> {
8823 let rename = self.take_rename(false, cx)?;
8824 let workspace = self.workspace()?;
8825 let (start_buffer, start) = self
8826 .buffer
8827 .read(cx)
8828 .text_anchor_for_position(rename.range.start, cx)?;
8829 let (end_buffer, end) = self
8830 .buffer
8831 .read(cx)
8832 .text_anchor_for_position(rename.range.end, cx)?;
8833 if start_buffer != end_buffer {
8834 return None;
8835 }
8836
8837 let buffer = start_buffer;
8838 let range = start..end;
8839 let old_name = rename.old_name;
8840 let new_name = rename.editor.read(cx).text(cx);
8841
8842 let rename = workspace
8843 .read(cx)
8844 .project()
8845 .clone()
8846 .update(cx, |project, cx| {
8847 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8848 });
8849 let workspace = workspace.downgrade();
8850
8851 Some(cx.spawn(|editor, mut cx| async move {
8852 let project_transaction = rename.await?;
8853 Self::open_project_transaction(
8854 &editor,
8855 workspace,
8856 project_transaction,
8857 format!("Rename: {} → {}", old_name, new_name),
8858 cx.clone(),
8859 )
8860 .await?;
8861
8862 editor.update(&mut cx, |editor, cx| {
8863 editor.refresh_document_highlights(cx);
8864 })?;
8865 Ok(())
8866 }))
8867 }
8868
8869 fn take_rename(
8870 &mut self,
8871 moving_cursor: bool,
8872 cx: &mut ViewContext<Self>,
8873 ) -> Option<RenameState> {
8874 let rename = self.pending_rename.take()?;
8875 if rename.editor.focus_handle(cx).is_focused(cx) {
8876 cx.focus(&self.focus_handle);
8877 }
8878
8879 self.remove_blocks(
8880 [rename.block_id].into_iter().collect(),
8881 Some(Autoscroll::fit()),
8882 cx,
8883 );
8884 self.clear_highlights::<Rename>(cx);
8885 self.show_local_selections = true;
8886
8887 if moving_cursor {
8888 let rename_editor = rename.editor.read(cx);
8889 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8890
8891 // Update the selection to match the position of the selection inside
8892 // the rename editor.
8893 let snapshot = self.buffer.read(cx).read(cx);
8894 let rename_range = rename.range.to_offset(&snapshot);
8895 let cursor_in_editor = snapshot
8896 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8897 .min(rename_range.end);
8898 drop(snapshot);
8899
8900 self.change_selections(None, cx, |s| {
8901 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8902 });
8903 } else {
8904 self.refresh_document_highlights(cx);
8905 }
8906
8907 Some(rename)
8908 }
8909
8910 pub fn pending_rename(&self) -> Option<&RenameState> {
8911 self.pending_rename.as_ref()
8912 }
8913
8914 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8915 let project = match &self.project {
8916 Some(project) => project.clone(),
8917 None => return None,
8918 };
8919
8920 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8921 }
8922
8923 fn perform_format(
8924 &mut self,
8925 project: Model<Project>,
8926 trigger: FormatTrigger,
8927 cx: &mut ViewContext<Self>,
8928 ) -> Task<Result<()>> {
8929 let buffer = self.buffer().clone();
8930 let mut buffers = buffer.read(cx).all_buffers();
8931 if trigger == FormatTrigger::Save {
8932 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8933 }
8934
8935 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8936 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8937
8938 cx.spawn(|_, mut cx| async move {
8939 let transaction = futures::select_biased! {
8940 () = timeout => {
8941 log::warn!("timed out waiting for formatting");
8942 None
8943 }
8944 transaction = format.log_err().fuse() => transaction,
8945 };
8946
8947 buffer
8948 .update(&mut cx, |buffer, cx| {
8949 if let Some(transaction) = transaction {
8950 if !buffer.is_singleton() {
8951 buffer.push_transaction(&transaction.0, cx);
8952 }
8953 }
8954
8955 cx.notify();
8956 })
8957 .ok();
8958
8959 Ok(())
8960 })
8961 }
8962
8963 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8964 if let Some(project) = self.project.clone() {
8965 self.buffer.update(cx, |multi_buffer, cx| {
8966 project.update(cx, |project, cx| {
8967 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8968 });
8969 })
8970 }
8971 }
8972
8973 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8974 cx.show_character_palette();
8975 }
8976
8977 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8978 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8979 let buffer = self.buffer.read(cx).snapshot(cx);
8980 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8981 let is_valid = buffer
8982 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8983 .any(|entry| {
8984 entry.diagnostic.is_primary
8985 && !entry.range.is_empty()
8986 && entry.range.start == primary_range_start
8987 && entry.diagnostic.message == active_diagnostics.primary_message
8988 });
8989
8990 if is_valid != active_diagnostics.is_valid {
8991 active_diagnostics.is_valid = is_valid;
8992 let mut new_styles = HashMap::default();
8993 for (block_id, diagnostic) in &active_diagnostics.blocks {
8994 new_styles.insert(
8995 *block_id,
8996 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8997 );
8998 }
8999 self.display_map
9000 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9001 }
9002 }
9003 }
9004
9005 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9006 self.dismiss_diagnostics(cx);
9007 let snapshot = self.snapshot(cx);
9008 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9009 let buffer = self.buffer.read(cx).snapshot(cx);
9010
9011 let mut primary_range = None;
9012 let mut primary_message = None;
9013 let mut group_end = Point::zero();
9014 let diagnostic_group = buffer
9015 .diagnostic_group::<MultiBufferPoint>(group_id)
9016 .filter_map(|entry| {
9017 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9018 && (entry.range.start.row == entry.range.end.row
9019 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9020 {
9021 return None;
9022 }
9023 if entry.range.end > group_end {
9024 group_end = entry.range.end;
9025 }
9026 if entry.diagnostic.is_primary {
9027 primary_range = Some(entry.range.clone());
9028 primary_message = Some(entry.diagnostic.message.clone());
9029 }
9030 Some(entry)
9031 })
9032 .collect::<Vec<_>>();
9033 let primary_range = primary_range?;
9034 let primary_message = primary_message?;
9035 let primary_range =
9036 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9037
9038 let blocks = display_map
9039 .insert_blocks(
9040 diagnostic_group.iter().map(|entry| {
9041 let diagnostic = entry.diagnostic.clone();
9042 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9043 BlockProperties {
9044 style: BlockStyle::Fixed,
9045 position: buffer.anchor_after(entry.range.start),
9046 height: message_height,
9047 render: diagnostic_block_renderer(diagnostic, true),
9048 disposition: BlockDisposition::Below,
9049 }
9050 }),
9051 cx,
9052 )
9053 .into_iter()
9054 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9055 .collect();
9056
9057 Some(ActiveDiagnosticGroup {
9058 primary_range,
9059 primary_message,
9060 group_id,
9061 blocks,
9062 is_valid: true,
9063 })
9064 });
9065 self.active_diagnostics.is_some()
9066 }
9067
9068 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9069 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9070 self.display_map.update(cx, |display_map, cx| {
9071 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9072 });
9073 cx.notify();
9074 }
9075 }
9076
9077 pub fn set_selections_from_remote(
9078 &mut self,
9079 selections: Vec<Selection<Anchor>>,
9080 pending_selection: Option<Selection<Anchor>>,
9081 cx: &mut ViewContext<Self>,
9082 ) {
9083 let old_cursor_position = self.selections.newest_anchor().head();
9084 self.selections.change_with(cx, |s| {
9085 s.select_anchors(selections);
9086 if let Some(pending_selection) = pending_selection {
9087 s.set_pending(pending_selection, SelectMode::Character);
9088 } else {
9089 s.clear_pending();
9090 }
9091 });
9092 self.selections_did_change(false, &old_cursor_position, cx);
9093 }
9094
9095 fn push_to_selection_history(&mut self) {
9096 self.selection_history.push(SelectionHistoryEntry {
9097 selections: self.selections.disjoint_anchors(),
9098 select_next_state: self.select_next_state.clone(),
9099 select_prev_state: self.select_prev_state.clone(),
9100 add_selections_state: self.add_selections_state.clone(),
9101 });
9102 }
9103
9104 pub fn transact(
9105 &mut self,
9106 cx: &mut ViewContext<Self>,
9107 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9108 ) -> Option<TransactionId> {
9109 self.start_transaction_at(Instant::now(), cx);
9110 update(self, cx);
9111 self.end_transaction_at(Instant::now(), cx)
9112 }
9113
9114 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9115 self.end_selection(cx);
9116 if let Some(tx_id) = self
9117 .buffer
9118 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9119 {
9120 self.selection_history
9121 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9122 cx.emit(EditorEvent::TransactionBegun {
9123 transaction_id: tx_id,
9124 })
9125 }
9126 }
9127
9128 fn end_transaction_at(
9129 &mut self,
9130 now: Instant,
9131 cx: &mut ViewContext<Self>,
9132 ) -> Option<TransactionId> {
9133 if let Some(tx_id) = self
9134 .buffer
9135 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9136 {
9137 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9138 *end_selections = Some(self.selections.disjoint_anchors());
9139 } else {
9140 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9141 }
9142
9143 cx.emit(EditorEvent::Edited);
9144 Some(tx_id)
9145 } else {
9146 None
9147 }
9148 }
9149
9150 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9151 let mut fold_ranges = Vec::new();
9152
9153 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9154
9155 let selections = self.selections.all_adjusted(cx);
9156 for selection in selections {
9157 let range = selection.range().sorted();
9158 let buffer_start_row = range.start.row;
9159
9160 for row in (0..=range.end.row).rev() {
9161 let fold_range = display_map.foldable_range(MultiBufferRow(row));
9162
9163 if let Some(fold_range) = fold_range {
9164 if fold_range.end.row >= buffer_start_row {
9165 fold_ranges.push(fold_range);
9166 if row <= range.start.row {
9167 break;
9168 }
9169 }
9170 }
9171 }
9172 }
9173
9174 self.fold_ranges(fold_ranges, true, cx);
9175 }
9176
9177 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9178 let buffer_row = fold_at.buffer_row;
9179 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9180
9181 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9182 let autoscroll = self
9183 .selections
9184 .all::<Point>(cx)
9185 .iter()
9186 .any(|selection| fold_range.overlaps(&selection.range()));
9187
9188 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9189 }
9190 }
9191
9192 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9193 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9194 let buffer = &display_map.buffer_snapshot;
9195 let selections = self.selections.all::<Point>(cx);
9196 let ranges = selections
9197 .iter()
9198 .map(|s| {
9199 let range = s.display_range(&display_map).sorted();
9200 let mut start = range.start.to_point(&display_map);
9201 let mut end = range.end.to_point(&display_map);
9202 start.column = 0;
9203 end.column = buffer.line_len(MultiBufferRow(end.row));
9204 start..end
9205 })
9206 .collect::<Vec<_>>();
9207
9208 self.unfold_ranges(ranges, true, true, cx);
9209 }
9210
9211 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9212 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9213
9214 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9215 ..Point::new(
9216 unfold_at.buffer_row.0,
9217 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9218 );
9219
9220 let autoscroll = self
9221 .selections
9222 .all::<Point>(cx)
9223 .iter()
9224 .any(|selection| selection.range().overlaps(&intersection_range));
9225
9226 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9227 }
9228
9229 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9230 let selections = self.selections.all::<Point>(cx);
9231 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9232 let line_mode = self.selections.line_mode;
9233 let ranges = selections.into_iter().map(|s| {
9234 if line_mode {
9235 let start = Point::new(s.start.row, 0);
9236 let end = Point::new(
9237 s.end.row,
9238 display_map
9239 .buffer_snapshot
9240 .line_len(MultiBufferRow(s.end.row)),
9241 );
9242 start..end
9243 } else {
9244 s.start..s.end
9245 }
9246 });
9247 self.fold_ranges(ranges, true, cx);
9248 }
9249
9250 pub fn fold_ranges<T: ToOffset + Clone>(
9251 &mut self,
9252 ranges: impl IntoIterator<Item = Range<T>>,
9253 auto_scroll: bool,
9254 cx: &mut ViewContext<Self>,
9255 ) {
9256 let mut fold_ranges = Vec::new();
9257 let mut buffers_affected = HashMap::default();
9258 let multi_buffer = self.buffer().read(cx);
9259 for range in ranges {
9260 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9261 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9262 };
9263 fold_ranges.push(range);
9264 }
9265
9266 let mut ranges = fold_ranges.into_iter().peekable();
9267 if ranges.peek().is_some() {
9268 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9269
9270 if auto_scroll {
9271 self.request_autoscroll(Autoscroll::fit(), cx);
9272 }
9273
9274 for buffer in buffers_affected.into_values() {
9275 self.sync_expanded_diff_hunks(buffer, cx);
9276 }
9277
9278 cx.notify();
9279
9280 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9281 // Clear diagnostics block when folding a range that contains it.
9282 let snapshot = self.snapshot(cx);
9283 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9284 drop(snapshot);
9285 self.active_diagnostics = Some(active_diagnostics);
9286 self.dismiss_diagnostics(cx);
9287 } else {
9288 self.active_diagnostics = Some(active_diagnostics);
9289 }
9290 }
9291
9292 self.scrollbar_marker_state.dirty = true;
9293 }
9294 }
9295
9296 pub fn unfold_ranges<T: ToOffset + Clone>(
9297 &mut self,
9298 ranges: impl IntoIterator<Item = Range<T>>,
9299 inclusive: bool,
9300 auto_scroll: bool,
9301 cx: &mut ViewContext<Self>,
9302 ) {
9303 let mut unfold_ranges = Vec::new();
9304 let mut buffers_affected = HashMap::default();
9305 let multi_buffer = self.buffer().read(cx);
9306 for range in ranges {
9307 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9308 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9309 };
9310 unfold_ranges.push(range);
9311 }
9312
9313 let mut ranges = unfold_ranges.into_iter().peekable();
9314 if ranges.peek().is_some() {
9315 self.display_map
9316 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9317 if auto_scroll {
9318 self.request_autoscroll(Autoscroll::fit(), cx);
9319 }
9320
9321 for buffer in buffers_affected.into_values() {
9322 self.sync_expanded_diff_hunks(buffer, cx);
9323 }
9324
9325 cx.notify();
9326 self.scrollbar_marker_state.dirty = true;
9327 }
9328 }
9329
9330 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9331 if hovered != self.gutter_hovered {
9332 self.gutter_hovered = hovered;
9333 cx.notify();
9334 }
9335 }
9336
9337 pub fn insert_blocks(
9338 &mut self,
9339 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9340 autoscroll: Option<Autoscroll>,
9341 cx: &mut ViewContext<Self>,
9342 ) -> Vec<BlockId> {
9343 let blocks = self
9344 .display_map
9345 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9346 if let Some(autoscroll) = autoscroll {
9347 self.request_autoscroll(autoscroll, cx);
9348 }
9349 blocks
9350 }
9351
9352 pub fn replace_blocks(
9353 &mut self,
9354 blocks: HashMap<BlockId, RenderBlock>,
9355 autoscroll: Option<Autoscroll>,
9356 cx: &mut ViewContext<Self>,
9357 ) {
9358 self.display_map
9359 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9360 if let Some(autoscroll) = autoscroll {
9361 self.request_autoscroll(autoscroll, cx);
9362 }
9363 }
9364
9365 pub fn remove_blocks(
9366 &mut self,
9367 block_ids: HashSet<BlockId>,
9368 autoscroll: Option<Autoscroll>,
9369 cx: &mut ViewContext<Self>,
9370 ) {
9371 self.display_map.update(cx, |display_map, cx| {
9372 display_map.remove_blocks(block_ids, cx)
9373 });
9374 if let Some(autoscroll) = autoscroll {
9375 self.request_autoscroll(autoscroll, cx);
9376 }
9377 }
9378
9379 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9380 self.display_map
9381 .update(cx, |map, cx| map.snapshot(cx))
9382 .longest_row()
9383 }
9384
9385 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9386 self.display_map
9387 .update(cx, |map, cx| map.snapshot(cx))
9388 .max_point()
9389 }
9390
9391 pub fn text(&self, cx: &AppContext) -> String {
9392 self.buffer.read(cx).read(cx).text()
9393 }
9394
9395 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9396 let text = self.text(cx);
9397 let text = text.trim();
9398
9399 if text.is_empty() {
9400 return None;
9401 }
9402
9403 Some(text.to_string())
9404 }
9405
9406 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9407 self.transact(cx, |this, cx| {
9408 this.buffer
9409 .read(cx)
9410 .as_singleton()
9411 .expect("you can only call set_text on editors for singleton buffers")
9412 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9413 });
9414 }
9415
9416 pub fn display_text(&self, cx: &mut AppContext) -> String {
9417 self.display_map
9418 .update(cx, |map, cx| map.snapshot(cx))
9419 .text()
9420 }
9421
9422 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9423 let mut wrap_guides = smallvec::smallvec![];
9424
9425 if self.show_wrap_guides == Some(false) {
9426 return wrap_guides;
9427 }
9428
9429 let settings = self.buffer.read(cx).settings_at(0, cx);
9430 if settings.show_wrap_guides {
9431 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9432 wrap_guides.push((soft_wrap as usize, true));
9433 }
9434 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9435 }
9436
9437 wrap_guides
9438 }
9439
9440 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9441 let settings = self.buffer.read(cx).settings_at(0, cx);
9442 let mode = self
9443 .soft_wrap_mode_override
9444 .unwrap_or_else(|| settings.soft_wrap);
9445 match mode {
9446 language_settings::SoftWrap::None => SoftWrap::None,
9447 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9448 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9449 language_settings::SoftWrap::PreferredLineLength => {
9450 SoftWrap::Column(settings.preferred_line_length)
9451 }
9452 }
9453 }
9454
9455 pub fn set_soft_wrap_mode(
9456 &mut self,
9457 mode: language_settings::SoftWrap,
9458 cx: &mut ViewContext<Self>,
9459 ) {
9460 self.soft_wrap_mode_override = Some(mode);
9461 cx.notify();
9462 }
9463
9464 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9465 let rem_size = cx.rem_size();
9466 self.display_map.update(cx, |map, cx| {
9467 map.set_font(
9468 style.text.font(),
9469 style.text.font_size.to_pixels(rem_size),
9470 cx,
9471 )
9472 });
9473 self.style = Some(style);
9474 }
9475
9476 pub fn style(&self) -> Option<&EditorStyle> {
9477 self.style.as_ref()
9478 }
9479
9480 // Called by the element. This method is not designed to be called outside of the editor
9481 // element's layout code because it does not notify when rewrapping is computed synchronously.
9482 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9483 self.display_map
9484 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9485 }
9486
9487 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9488 if self.soft_wrap_mode_override.is_some() {
9489 self.soft_wrap_mode_override.take();
9490 } else {
9491 let soft_wrap = match self.soft_wrap_mode(cx) {
9492 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9493 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9494 language_settings::SoftWrap::PreferLine
9495 }
9496 };
9497 self.soft_wrap_mode_override = Some(soft_wrap);
9498 }
9499 cx.notify();
9500 }
9501
9502 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9503 let mut editor_settings = EditorSettings::get_global(cx).clone();
9504 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9505 EditorSettings::override_global(editor_settings, cx);
9506 }
9507
9508 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9509 self.show_gutter = show_gutter;
9510 cx.notify();
9511 }
9512
9513 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9514 self.show_wrap_guides = Some(show_gutter);
9515 cx.notify();
9516 }
9517
9518 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9519 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9520 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9521 cx.reveal_path(&file.abs_path(cx));
9522 }
9523 }
9524 }
9525
9526 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9527 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9528 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9529 if let Some(path) = file.abs_path(cx).to_str() {
9530 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9531 }
9532 }
9533 }
9534 }
9535
9536 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9537 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9538 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9539 if let Some(path) = file.path().to_str() {
9540 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9541 }
9542 }
9543 }
9544 }
9545
9546 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9547 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9548
9549 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9550 self.start_git_blame(true, cx);
9551 }
9552
9553 cx.notify();
9554 }
9555
9556 pub fn toggle_git_blame_inline(
9557 &mut self,
9558 _: &ToggleGitBlameInline,
9559 cx: &mut ViewContext<Self>,
9560 ) {
9561 self.toggle_git_blame_inline_internal(true, cx);
9562 cx.notify();
9563 }
9564
9565 pub fn git_blame_inline_enabled(&self) -> bool {
9566 self.git_blame_inline_enabled
9567 }
9568
9569 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9570 if let Some(project) = self.project.as_ref() {
9571 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9572 return;
9573 };
9574
9575 if buffer.read(cx).file().is_none() {
9576 return;
9577 }
9578
9579 let focused = self.focus_handle(cx).contains_focused(cx);
9580
9581 let project = project.clone();
9582 let blame =
9583 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9584 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9585 self.blame = Some(blame);
9586 }
9587 }
9588
9589 fn toggle_git_blame_inline_internal(
9590 &mut self,
9591 user_triggered: bool,
9592 cx: &mut ViewContext<Self>,
9593 ) {
9594 if self.git_blame_inline_enabled {
9595 self.git_blame_inline_enabled = false;
9596 self.show_git_blame_inline = false;
9597 self.show_git_blame_inline_delay_task.take();
9598 } else {
9599 self.git_blame_inline_enabled = true;
9600 self.start_git_blame_inline(user_triggered, cx);
9601 }
9602
9603 cx.notify();
9604 }
9605
9606 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9607 self.start_git_blame(user_triggered, cx);
9608
9609 if ProjectSettings::get_global(cx)
9610 .git
9611 .inline_blame_delay()
9612 .is_some()
9613 {
9614 self.start_inline_blame_timer(cx);
9615 } else {
9616 self.show_git_blame_inline = true
9617 }
9618 }
9619
9620 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9621 self.blame.as_ref()
9622 }
9623
9624 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9625 self.show_git_blame_gutter && self.has_blame_entries(cx)
9626 }
9627
9628 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9629 self.show_git_blame_inline
9630 && self.focus_handle.is_focused(cx)
9631 && !self.newest_selection_head_on_empty_line(cx)
9632 && self.has_blame_entries(cx)
9633 }
9634
9635 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9636 self.blame()
9637 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9638 }
9639
9640 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9641 let cursor_anchor = self.selections.newest_anchor().head();
9642
9643 let snapshot = self.buffer.read(cx).snapshot(cx);
9644 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9645
9646 snapshot.line_len(buffer_row) == 0
9647 }
9648
9649 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9650 let (path, repo) = maybe!({
9651 let project_handle = self.project.as_ref()?.clone();
9652 let project = project_handle.read(cx);
9653 let buffer = self.buffer().read(cx).as_singleton()?;
9654 let path = buffer
9655 .read(cx)
9656 .file()?
9657 .as_local()?
9658 .path()
9659 .to_str()?
9660 .to_string();
9661 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9662 Some((path, repo))
9663 })
9664 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9665
9666 const REMOTE_NAME: &str = "origin";
9667 let origin_url = repo
9668 .lock()
9669 .remote_url(REMOTE_NAME)
9670 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9671 let sha = repo
9672 .lock()
9673 .head_sha()
9674 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9675 let selections = self.selections.all::<Point>(cx);
9676 let selection = selections.iter().peekable().next();
9677
9678 let (provider, remote) =
9679 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9680 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9681
9682 Ok(provider.build_permalink(
9683 remote,
9684 BuildPermalinkParams {
9685 sha: &sha,
9686 path: &path,
9687 selection: selection.map(|selection| {
9688 let range = selection.range();
9689 let start = range.start.row;
9690 let end = range.end.row;
9691 start..end
9692 }),
9693 },
9694 ))
9695 }
9696
9697 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9698 let permalink = self.get_permalink_to_line(cx);
9699
9700 match permalink {
9701 Ok(permalink) => {
9702 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9703 }
9704 Err(err) => {
9705 let message = format!("Failed to copy permalink: {err}");
9706
9707 Err::<(), anyhow::Error>(err).log_err();
9708
9709 if let Some(workspace) = self.workspace() {
9710 workspace.update(cx, |workspace, cx| {
9711 struct CopyPermalinkToLine;
9712
9713 workspace.show_toast(
9714 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9715 cx,
9716 )
9717 })
9718 }
9719 }
9720 }
9721 }
9722
9723 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9724 let permalink = self.get_permalink_to_line(cx);
9725
9726 match permalink {
9727 Ok(permalink) => {
9728 cx.open_url(permalink.as_ref());
9729 }
9730 Err(err) => {
9731 let message = format!("Failed to open permalink: {err}");
9732
9733 Err::<(), anyhow::Error>(err).log_err();
9734
9735 if let Some(workspace) = self.workspace() {
9736 workspace.update(cx, |workspace, cx| {
9737 struct OpenPermalinkToLine;
9738
9739 workspace.show_toast(
9740 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9741 cx,
9742 )
9743 })
9744 }
9745 }
9746 }
9747 }
9748
9749 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9750 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9751 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9752 pub fn highlight_rows<T: 'static>(
9753 &mut self,
9754 rows: RangeInclusive<Anchor>,
9755 color: Option<Hsla>,
9756 cx: &mut ViewContext<Self>,
9757 ) {
9758 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9759 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9760 hash_map::Entry::Occupied(o) => {
9761 let row_highlights = o.into_mut();
9762 let existing_highlight_index =
9763 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9764 highlight_range
9765 .start()
9766 .cmp(&rows.start(), &multi_buffer_snapshot)
9767 .then(
9768 highlight_range
9769 .end()
9770 .cmp(&rows.end(), &multi_buffer_snapshot),
9771 )
9772 });
9773 match color {
9774 Some(color) => {
9775 let insert_index = match existing_highlight_index {
9776 Ok(i) => i,
9777 Err(i) => i,
9778 };
9779 row_highlights.insert(
9780 insert_index,
9781 (post_inc(&mut self.highlight_order), rows, Some(color)),
9782 );
9783 }
9784 None => match existing_highlight_index {
9785 Ok(i) => {
9786 row_highlights.remove(i);
9787 }
9788 Err(i) => {
9789 row_highlights
9790 .insert(i, (post_inc(&mut self.highlight_order), rows, None));
9791 }
9792 },
9793 }
9794 }
9795 hash_map::Entry::Vacant(v) => {
9796 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9797 }
9798 }
9799 }
9800
9801 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9802 pub fn clear_row_highlights<T: 'static>(&mut self) {
9803 self.highlighted_rows.remove(&TypeId::of::<T>());
9804 }
9805
9806 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9807 pub fn highlighted_rows<T: 'static>(
9808 &self,
9809 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9810 Some(
9811 self.highlighted_rows
9812 .get(&TypeId::of::<T>())?
9813 .iter()
9814 .map(|(_, range, color)| (range, color.as_ref())),
9815 )
9816 }
9817
9818 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9819 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9820 /// Allows to ignore certain kinds of highlights.
9821 pub fn highlighted_display_rows(
9822 &mut self,
9823 exclude_highlights: HashSet<TypeId>,
9824 cx: &mut WindowContext,
9825 ) -> BTreeMap<DisplayRow, Hsla> {
9826 let snapshot = self.snapshot(cx);
9827 let mut used_highlight_orders = HashMap::default();
9828 self.highlighted_rows
9829 .iter()
9830 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9831 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9832 .fold(
9833 BTreeMap::<DisplayRow, Hsla>::new(),
9834 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9835 let start_row = anchor_range.start().to_display_point(&snapshot).row();
9836 let end_row = anchor_range.end().to_display_point(&snapshot).row();
9837 for row in start_row.0..=end_row.0 {
9838 let used_index =
9839 used_highlight_orders.entry(row).or_insert(*highlight_order);
9840 if highlight_order >= used_index {
9841 *used_index = *highlight_order;
9842 match hsla {
9843 Some(hsla) => {
9844 unique_rows.insert(DisplayRow(row), *hsla);
9845 }
9846 None => {
9847 unique_rows.remove(&DisplayRow(row));
9848 }
9849 }
9850 }
9851 }
9852 unique_rows
9853 },
9854 )
9855 }
9856
9857 pub fn set_search_within_ranges(
9858 &mut self,
9859 ranges: &[Range<Anchor>],
9860 cx: &mut ViewContext<Self>,
9861 ) {
9862 self.highlight_background::<SearchWithinRange>(
9863 ranges,
9864 |colors| colors.editor_document_highlight_read_background,
9865 cx,
9866 )
9867 }
9868
9869 pub fn highlight_background<T: 'static>(
9870 &mut self,
9871 ranges: &[Range<Anchor>],
9872 color_fetcher: fn(&ThemeColors) -> Hsla,
9873 cx: &mut ViewContext<Self>,
9874 ) {
9875 let snapshot = self.snapshot(cx);
9876 // this is to try and catch a panic sooner
9877 for range in ranges {
9878 snapshot
9879 .buffer_snapshot
9880 .summary_for_anchor::<usize>(&range.start);
9881 snapshot
9882 .buffer_snapshot
9883 .summary_for_anchor::<usize>(&range.end);
9884 }
9885
9886 self.background_highlights
9887 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9888 self.scrollbar_marker_state.dirty = true;
9889 cx.notify();
9890 }
9891
9892 pub fn clear_background_highlights<T: 'static>(
9893 &mut self,
9894 cx: &mut ViewContext<Self>,
9895 ) -> Option<BackgroundHighlight> {
9896 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9897 if !text_highlights.1.is_empty() {
9898 self.scrollbar_marker_state.dirty = true;
9899 cx.notify();
9900 }
9901 Some(text_highlights)
9902 }
9903
9904 #[cfg(feature = "test-support")]
9905 pub fn all_text_background_highlights(
9906 &mut self,
9907 cx: &mut ViewContext<Self>,
9908 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9909 let snapshot = self.snapshot(cx);
9910 let buffer = &snapshot.buffer_snapshot;
9911 let start = buffer.anchor_before(0);
9912 let end = buffer.anchor_after(buffer.len());
9913 let theme = cx.theme().colors();
9914 self.background_highlights_in_range(start..end, &snapshot, theme)
9915 }
9916
9917 fn document_highlights_for_position<'a>(
9918 &'a self,
9919 position: Anchor,
9920 buffer: &'a MultiBufferSnapshot,
9921 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9922 let read_highlights = self
9923 .background_highlights
9924 .get(&TypeId::of::<DocumentHighlightRead>())
9925 .map(|h| &h.1);
9926 let write_highlights = self
9927 .background_highlights
9928 .get(&TypeId::of::<DocumentHighlightWrite>())
9929 .map(|h| &h.1);
9930 let left_position = position.bias_left(buffer);
9931 let right_position = position.bias_right(buffer);
9932 read_highlights
9933 .into_iter()
9934 .chain(write_highlights)
9935 .flat_map(move |ranges| {
9936 let start_ix = match ranges.binary_search_by(|probe| {
9937 let cmp = probe.end.cmp(&left_position, buffer);
9938 if cmp.is_ge() {
9939 Ordering::Greater
9940 } else {
9941 Ordering::Less
9942 }
9943 }) {
9944 Ok(i) | Err(i) => i,
9945 };
9946
9947 ranges[start_ix..]
9948 .iter()
9949 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9950 })
9951 }
9952
9953 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9954 self.background_highlights
9955 .get(&TypeId::of::<T>())
9956 .map_or(false, |(_, highlights)| !highlights.is_empty())
9957 }
9958
9959 pub fn background_highlights_in_range(
9960 &self,
9961 search_range: Range<Anchor>,
9962 display_snapshot: &DisplaySnapshot,
9963 theme: &ThemeColors,
9964 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9965 let mut results = Vec::new();
9966 for (color_fetcher, ranges) in self.background_highlights.values() {
9967 let color = color_fetcher(theme);
9968 let start_ix = match ranges.binary_search_by(|probe| {
9969 let cmp = probe
9970 .end
9971 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9972 if cmp.is_gt() {
9973 Ordering::Greater
9974 } else {
9975 Ordering::Less
9976 }
9977 }) {
9978 Ok(i) | Err(i) => i,
9979 };
9980 for range in &ranges[start_ix..] {
9981 if range
9982 .start
9983 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9984 .is_ge()
9985 {
9986 break;
9987 }
9988
9989 let start = range.start.to_display_point(&display_snapshot);
9990 let end = range.end.to_display_point(&display_snapshot);
9991 results.push((start..end, color))
9992 }
9993 }
9994 results
9995 }
9996
9997 pub fn background_highlight_row_ranges<T: 'static>(
9998 &self,
9999 search_range: Range<Anchor>,
10000 display_snapshot: &DisplaySnapshot,
10001 count: usize,
10002 ) -> Vec<RangeInclusive<DisplayPoint>> {
10003 let mut results = Vec::new();
10004 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10005 return vec![];
10006 };
10007
10008 let start_ix = match ranges.binary_search_by(|probe| {
10009 let cmp = probe
10010 .end
10011 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10012 if cmp.is_gt() {
10013 Ordering::Greater
10014 } else {
10015 Ordering::Less
10016 }
10017 }) {
10018 Ok(i) | Err(i) => i,
10019 };
10020 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10021 if let (Some(start_display), Some(end_display)) = (start, end) {
10022 results.push(
10023 start_display.to_display_point(display_snapshot)
10024 ..=end_display.to_display_point(display_snapshot),
10025 );
10026 }
10027 };
10028 let mut start_row: Option<Point> = None;
10029 let mut end_row: Option<Point> = None;
10030 if ranges.len() > count {
10031 return Vec::new();
10032 }
10033 for range in &ranges[start_ix..] {
10034 if range
10035 .start
10036 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10037 .is_ge()
10038 {
10039 break;
10040 }
10041 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10042 if let Some(current_row) = &end_row {
10043 if end.row == current_row.row {
10044 continue;
10045 }
10046 }
10047 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10048 if start_row.is_none() {
10049 assert_eq!(end_row, None);
10050 start_row = Some(start);
10051 end_row = Some(end);
10052 continue;
10053 }
10054 if let Some(current_end) = end_row.as_mut() {
10055 if start.row > current_end.row + 1 {
10056 push_region(start_row, end_row);
10057 start_row = Some(start);
10058 end_row = Some(end);
10059 } else {
10060 // Merge two hunks.
10061 *current_end = end;
10062 }
10063 } else {
10064 unreachable!();
10065 }
10066 }
10067 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10068 push_region(start_row, end_row);
10069 results
10070 }
10071
10072 /// Get the text ranges corresponding to the redaction query
10073 pub fn redacted_ranges(
10074 &self,
10075 search_range: Range<Anchor>,
10076 display_snapshot: &DisplaySnapshot,
10077 cx: &WindowContext,
10078 ) -> Vec<Range<DisplayPoint>> {
10079 display_snapshot
10080 .buffer_snapshot
10081 .redacted_ranges(search_range, |file| {
10082 if let Some(file) = file {
10083 file.is_private()
10084 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10085 } else {
10086 false
10087 }
10088 })
10089 .map(|range| {
10090 range.start.to_display_point(display_snapshot)
10091 ..range.end.to_display_point(display_snapshot)
10092 })
10093 .collect()
10094 }
10095
10096 pub fn highlight_text<T: 'static>(
10097 &mut self,
10098 ranges: Vec<Range<Anchor>>,
10099 style: HighlightStyle,
10100 cx: &mut ViewContext<Self>,
10101 ) {
10102 self.display_map.update(cx, |map, _| {
10103 map.highlight_text(TypeId::of::<T>(), ranges, style)
10104 });
10105 cx.notify();
10106 }
10107
10108 pub(crate) fn highlight_inlays<T: 'static>(
10109 &mut self,
10110 highlights: Vec<InlayHighlight>,
10111 style: HighlightStyle,
10112 cx: &mut ViewContext<Self>,
10113 ) {
10114 self.display_map.update(cx, |map, _| {
10115 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10116 });
10117 cx.notify();
10118 }
10119
10120 pub fn text_highlights<'a, T: 'static>(
10121 &'a self,
10122 cx: &'a AppContext,
10123 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10124 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10125 }
10126
10127 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10128 let cleared = self
10129 .display_map
10130 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10131 if cleared {
10132 cx.notify();
10133 }
10134 }
10135
10136 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10137 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10138 && self.focus_handle.is_focused(cx)
10139 }
10140
10141 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10142 cx.notify();
10143 }
10144
10145 fn on_buffer_event(
10146 &mut self,
10147 multibuffer: Model<MultiBuffer>,
10148 event: &multi_buffer::Event,
10149 cx: &mut ViewContext<Self>,
10150 ) {
10151 match event {
10152 multi_buffer::Event::Edited {
10153 singleton_buffer_edited,
10154 } => {
10155 self.scrollbar_marker_state.dirty = true;
10156 self.refresh_active_diagnostics(cx);
10157 self.refresh_code_actions(cx);
10158 if self.has_active_inline_completion(cx) {
10159 self.update_visible_inline_completion(cx);
10160 }
10161 cx.emit(EditorEvent::BufferEdited);
10162 cx.emit(SearchEvent::MatchesInvalidated);
10163
10164 if *singleton_buffer_edited {
10165 if let Some(project) = &self.project {
10166 let project = project.read(cx);
10167 let languages_affected = multibuffer
10168 .read(cx)
10169 .all_buffers()
10170 .into_iter()
10171 .filter_map(|buffer| {
10172 let buffer = buffer.read(cx);
10173 let language = buffer.language()?;
10174 if project.is_local()
10175 && project.language_servers_for_buffer(buffer, cx).count() == 0
10176 {
10177 None
10178 } else {
10179 Some(language)
10180 }
10181 })
10182 .cloned()
10183 .collect::<HashSet<_>>();
10184 if !languages_affected.is_empty() {
10185 self.refresh_inlay_hints(
10186 InlayHintRefreshReason::BufferEdited(languages_affected),
10187 cx,
10188 );
10189 }
10190 }
10191 }
10192
10193 let Some(project) = &self.project else { return };
10194 let telemetry = project.read(cx).client().telemetry().clone();
10195 telemetry.log_edit_event("editor");
10196 }
10197 multi_buffer::Event::ExcerptsAdded {
10198 buffer,
10199 predecessor,
10200 excerpts,
10201 } => {
10202 self.tasks_update_task = Some(self.refresh_runnables(cx));
10203 cx.emit(EditorEvent::ExcerptsAdded {
10204 buffer: buffer.clone(),
10205 predecessor: *predecessor,
10206 excerpts: excerpts.clone(),
10207 });
10208 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10209 }
10210 multi_buffer::Event::ExcerptsRemoved { ids } => {
10211 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10212 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10213 }
10214 multi_buffer::Event::Reparsed => {
10215 self.tasks_update_task = Some(self.refresh_runnables(cx));
10216
10217 cx.emit(EditorEvent::Reparsed);
10218 }
10219 multi_buffer::Event::LanguageChanged => {
10220 cx.emit(EditorEvent::Reparsed);
10221 cx.notify();
10222 }
10223 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10224 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10225 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10226 cx.emit(EditorEvent::TitleChanged)
10227 }
10228 multi_buffer::Event::DiffBaseChanged => {
10229 self.scrollbar_marker_state.dirty = true;
10230 cx.emit(EditorEvent::DiffBaseChanged);
10231 cx.notify();
10232 }
10233 multi_buffer::Event::DiffUpdated { buffer } => {
10234 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10235 cx.notify();
10236 }
10237 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10238 multi_buffer::Event::DiagnosticsUpdated => {
10239 self.refresh_active_diagnostics(cx);
10240 self.scrollbar_marker_state.dirty = true;
10241 cx.notify();
10242 }
10243 _ => {}
10244 };
10245 }
10246
10247 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10248 cx.notify();
10249 }
10250
10251 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10252 self.refresh_inline_completion(true, cx);
10253 self.refresh_inlay_hints(
10254 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10255 self.selections.newest_anchor().head(),
10256 &self.buffer.read(cx).snapshot(cx),
10257 cx,
10258 )),
10259 cx,
10260 );
10261 let editor_settings = EditorSettings::get_global(cx);
10262 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10263 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10264
10265 if self.mode == EditorMode::Full {
10266 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10267 if self.git_blame_inline_enabled != inline_blame_enabled {
10268 self.toggle_git_blame_inline_internal(false, cx);
10269 }
10270 }
10271
10272 cx.notify();
10273 }
10274
10275 pub fn set_searchable(&mut self, searchable: bool) {
10276 self.searchable = searchable;
10277 }
10278
10279 pub fn searchable(&self) -> bool {
10280 self.searchable
10281 }
10282
10283 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10284 self.open_excerpts_common(true, cx)
10285 }
10286
10287 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10288 self.open_excerpts_common(false, cx)
10289 }
10290
10291 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10292 let buffer = self.buffer.read(cx);
10293 if buffer.is_singleton() {
10294 cx.propagate();
10295 return;
10296 }
10297
10298 let Some(workspace) = self.workspace() else {
10299 cx.propagate();
10300 return;
10301 };
10302
10303 let mut new_selections_by_buffer = HashMap::default();
10304 for selection in self.selections.all::<usize>(cx) {
10305 for (buffer, mut range, _) in
10306 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10307 {
10308 if selection.reversed {
10309 mem::swap(&mut range.start, &mut range.end);
10310 }
10311 new_selections_by_buffer
10312 .entry(buffer)
10313 .or_insert(Vec::new())
10314 .push(range)
10315 }
10316 }
10317
10318 // We defer the pane interaction because we ourselves are a workspace item
10319 // and activating a new item causes the pane to call a method on us reentrantly,
10320 // which panics if we're on the stack.
10321 cx.window_context().defer(move |cx| {
10322 workspace.update(cx, |workspace, cx| {
10323 let pane = if split {
10324 workspace.adjacent_pane(cx)
10325 } else {
10326 workspace.active_pane().clone()
10327 };
10328
10329 for (buffer, ranges) in new_selections_by_buffer {
10330 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10331 editor.update(cx, |editor, cx| {
10332 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10333 s.select_ranges(ranges);
10334 });
10335 });
10336 }
10337 })
10338 });
10339 }
10340
10341 fn jump(
10342 &mut self,
10343 path: ProjectPath,
10344 position: Point,
10345 anchor: language::Anchor,
10346 offset_from_top: u32,
10347 cx: &mut ViewContext<Self>,
10348 ) {
10349 let workspace = self.workspace();
10350 cx.spawn(|_, mut cx| async move {
10351 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10352 let editor = workspace.update(&mut cx, |workspace, cx| {
10353 // Reset the preview item id before opening the new item
10354 workspace.active_pane().update(cx, |pane, cx| {
10355 pane.set_preview_item_id(None, cx);
10356 });
10357 workspace.open_path_preview(path, None, true, true, cx)
10358 })?;
10359 let editor = editor
10360 .await?
10361 .downcast::<Editor>()
10362 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10363 .downgrade();
10364 editor.update(&mut cx, |editor, cx| {
10365 let buffer = editor
10366 .buffer()
10367 .read(cx)
10368 .as_singleton()
10369 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10370 let buffer = buffer.read(cx);
10371 let cursor = if buffer.can_resolve(&anchor) {
10372 language::ToPoint::to_point(&anchor, buffer)
10373 } else {
10374 buffer.clip_point(position, Bias::Left)
10375 };
10376
10377 let nav_history = editor.nav_history.take();
10378 editor.change_selections(
10379 Some(Autoscroll::top_relative(offset_from_top as usize)),
10380 cx,
10381 |s| {
10382 s.select_ranges([cursor..cursor]);
10383 },
10384 );
10385 editor.nav_history = nav_history;
10386
10387 anyhow::Ok(())
10388 })??;
10389
10390 anyhow::Ok(())
10391 })
10392 .detach_and_log_err(cx);
10393 }
10394
10395 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10396 let snapshot = self.buffer.read(cx).read(cx);
10397 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10398 Some(
10399 ranges
10400 .iter()
10401 .map(move |range| {
10402 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10403 })
10404 .collect(),
10405 )
10406 }
10407
10408 fn selection_replacement_ranges(
10409 &self,
10410 range: Range<OffsetUtf16>,
10411 cx: &AppContext,
10412 ) -> Vec<Range<OffsetUtf16>> {
10413 let selections = self.selections.all::<OffsetUtf16>(cx);
10414 let newest_selection = selections
10415 .iter()
10416 .max_by_key(|selection| selection.id)
10417 .unwrap();
10418 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10419 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10420 let snapshot = self.buffer.read(cx).read(cx);
10421 selections
10422 .into_iter()
10423 .map(|mut selection| {
10424 selection.start.0 =
10425 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10426 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10427 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10428 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10429 })
10430 .collect()
10431 }
10432
10433 fn report_editor_event(
10434 &self,
10435 operation: &'static str,
10436 file_extension: Option<String>,
10437 cx: &AppContext,
10438 ) {
10439 if cfg!(any(test, feature = "test-support")) {
10440 return;
10441 }
10442
10443 let Some(project) = &self.project else { return };
10444
10445 // If None, we are in a file without an extension
10446 let file = self
10447 .buffer
10448 .read(cx)
10449 .as_singleton()
10450 .and_then(|b| b.read(cx).file());
10451 let file_extension = file_extension.or(file
10452 .as_ref()
10453 .and_then(|file| Path::new(file.file_name(cx)).extension())
10454 .and_then(|e| e.to_str())
10455 .map(|a| a.to_string()));
10456
10457 let vim_mode = cx
10458 .global::<SettingsStore>()
10459 .raw_user_settings()
10460 .get("vim_mode")
10461 == Some(&serde_json::Value::Bool(true));
10462
10463 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10464 == language::language_settings::InlineCompletionProvider::Copilot;
10465 let copilot_enabled_for_language = self
10466 .buffer
10467 .read(cx)
10468 .settings_at(0, cx)
10469 .show_inline_completions;
10470
10471 let telemetry = project.read(cx).client().telemetry().clone();
10472 telemetry.report_editor_event(
10473 file_extension,
10474 vim_mode,
10475 operation,
10476 copilot_enabled,
10477 copilot_enabled_for_language,
10478 )
10479 }
10480
10481 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10482 /// with each line being an array of {text, highlight} objects.
10483 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10484 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10485 return;
10486 };
10487
10488 #[derive(Serialize)]
10489 struct Chunk<'a> {
10490 text: String,
10491 highlight: Option<&'a str>,
10492 }
10493
10494 let snapshot = buffer.read(cx).snapshot();
10495 let range = self
10496 .selected_text_range(cx)
10497 .and_then(|selected_range| {
10498 if selected_range.is_empty() {
10499 None
10500 } else {
10501 Some(selected_range)
10502 }
10503 })
10504 .unwrap_or_else(|| 0..snapshot.len());
10505
10506 let chunks = snapshot.chunks(range, true);
10507 let mut lines = Vec::new();
10508 let mut line: VecDeque<Chunk> = VecDeque::new();
10509
10510 let Some(style) = self.style.as_ref() else {
10511 return;
10512 };
10513
10514 for chunk in chunks {
10515 let highlight = chunk
10516 .syntax_highlight_id
10517 .and_then(|id| id.name(&style.syntax));
10518 let mut chunk_lines = chunk.text.split('\n').peekable();
10519 while let Some(text) = chunk_lines.next() {
10520 let mut merged_with_last_token = false;
10521 if let Some(last_token) = line.back_mut() {
10522 if last_token.highlight == highlight {
10523 last_token.text.push_str(text);
10524 merged_with_last_token = true;
10525 }
10526 }
10527
10528 if !merged_with_last_token {
10529 line.push_back(Chunk {
10530 text: text.into(),
10531 highlight,
10532 });
10533 }
10534
10535 if chunk_lines.peek().is_some() {
10536 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10537 line.pop_front();
10538 }
10539 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10540 line.pop_back();
10541 }
10542
10543 lines.push(mem::take(&mut line));
10544 }
10545 }
10546 }
10547
10548 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10549 return;
10550 };
10551 cx.write_to_clipboard(ClipboardItem::new(lines));
10552 }
10553
10554 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10555 &self.inlay_hint_cache
10556 }
10557
10558 pub fn replay_insert_event(
10559 &mut self,
10560 text: &str,
10561 relative_utf16_range: Option<Range<isize>>,
10562 cx: &mut ViewContext<Self>,
10563 ) {
10564 if !self.input_enabled {
10565 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10566 return;
10567 }
10568 if let Some(relative_utf16_range) = relative_utf16_range {
10569 let selections = self.selections.all::<OffsetUtf16>(cx);
10570 self.change_selections(None, cx, |s| {
10571 let new_ranges = selections.into_iter().map(|range| {
10572 let start = OffsetUtf16(
10573 range
10574 .head()
10575 .0
10576 .saturating_add_signed(relative_utf16_range.start),
10577 );
10578 let end = OffsetUtf16(
10579 range
10580 .head()
10581 .0
10582 .saturating_add_signed(relative_utf16_range.end),
10583 );
10584 start..end
10585 });
10586 s.select_ranges(new_ranges);
10587 });
10588 }
10589
10590 self.handle_input(text, cx);
10591 }
10592
10593 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10594 let Some(project) = self.project.as_ref() else {
10595 return false;
10596 };
10597 let project = project.read(cx);
10598
10599 let mut supports = false;
10600 self.buffer().read(cx).for_each_buffer(|buffer| {
10601 if !supports {
10602 supports = project
10603 .language_servers_for_buffer(buffer.read(cx), cx)
10604 .any(
10605 |(_, server)| match server.capabilities().inlay_hint_provider {
10606 Some(lsp::OneOf::Left(enabled)) => enabled,
10607 Some(lsp::OneOf::Right(_)) => true,
10608 None => false,
10609 },
10610 )
10611 }
10612 });
10613 supports
10614 }
10615
10616 pub fn focus(&self, cx: &mut WindowContext) {
10617 cx.focus(&self.focus_handle)
10618 }
10619
10620 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10621 self.focus_handle.is_focused(cx)
10622 }
10623
10624 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10625 cx.emit(EditorEvent::Focused);
10626
10627 if let Some(rename) = self.pending_rename.as_ref() {
10628 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10629 cx.focus(&rename_editor_focus_handle);
10630 } else {
10631 if let Some(blame) = self.blame.as_ref() {
10632 blame.update(cx, GitBlame::focus)
10633 }
10634
10635 self.blink_manager.update(cx, BlinkManager::enable);
10636 self.show_cursor_names(cx);
10637 self.buffer.update(cx, |buffer, cx| {
10638 buffer.finalize_last_transaction(cx);
10639 if self.leader_peer_id.is_none() {
10640 buffer.set_active_selections(
10641 &self.selections.disjoint_anchors(),
10642 self.selections.line_mode,
10643 self.cursor_shape,
10644 cx,
10645 );
10646 }
10647 });
10648 }
10649 }
10650
10651 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10652 self.blink_manager.update(cx, BlinkManager::disable);
10653 self.buffer
10654 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10655
10656 if let Some(blame) = self.blame.as_ref() {
10657 blame.update(cx, GitBlame::blur)
10658 }
10659 self.hide_context_menu(cx);
10660 hide_hover(self, cx);
10661 cx.emit(EditorEvent::Blurred);
10662 cx.notify();
10663 }
10664
10665 pub fn register_action<A: Action>(
10666 &mut self,
10667 listener: impl Fn(&A, &mut WindowContext) + 'static,
10668 ) -> &mut Self {
10669 let listener = Arc::new(listener);
10670
10671 self.editor_actions.push(Box::new(move |cx| {
10672 let _view = cx.view().clone();
10673 let cx = cx.window_context();
10674 let listener = listener.clone();
10675 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10676 let action = action.downcast_ref().unwrap();
10677 if phase == DispatchPhase::Bubble {
10678 listener(action, cx)
10679 }
10680 })
10681 }));
10682 self
10683 }
10684}
10685
10686fn hunks_for_selections(
10687 multi_buffer_snapshot: &MultiBufferSnapshot,
10688 selections: &[Selection<Anchor>],
10689) -> Vec<DiffHunk<MultiBufferRow>> {
10690 let mut hunks = Vec::with_capacity(selections.len());
10691 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10692 HashMap::default();
10693 let buffer_rows_for_selections = selections.iter().map(|selection| {
10694 let head = selection.head();
10695 let tail = selection.tail();
10696 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
10697 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
10698 if start > end {
10699 end..start
10700 } else {
10701 start..end
10702 }
10703 });
10704
10705 for selected_multi_buffer_rows in buffer_rows_for_selections {
10706 let query_rows =
10707 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
10708 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10709 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10710 // when the caret is just above or just below the deleted hunk.
10711 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
10712 let related_to_selection = if allow_adjacent {
10713 hunk.associated_range.overlaps(&query_rows)
10714 || hunk.associated_range.start == query_rows.end
10715 || hunk.associated_range.end == query_rows.start
10716 } else {
10717 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10718 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10719 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10720 || selected_multi_buffer_rows.end == hunk.associated_range.start
10721 };
10722 if related_to_selection {
10723 if !processed_buffer_rows
10724 .entry(hunk.buffer_id)
10725 .or_default()
10726 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10727 {
10728 continue;
10729 }
10730 hunks.push(hunk);
10731 }
10732 }
10733 }
10734
10735 hunks
10736}
10737
10738pub trait CollaborationHub {
10739 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10740 fn user_participant_indices<'a>(
10741 &self,
10742 cx: &'a AppContext,
10743 ) -> &'a HashMap<u64, ParticipantIndex>;
10744 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10745}
10746
10747impl CollaborationHub for Model<Project> {
10748 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10749 self.read(cx).collaborators()
10750 }
10751
10752 fn user_participant_indices<'a>(
10753 &self,
10754 cx: &'a AppContext,
10755 ) -> &'a HashMap<u64, ParticipantIndex> {
10756 self.read(cx).user_store().read(cx).participant_indices()
10757 }
10758
10759 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10760 let this = self.read(cx);
10761 let user_ids = this.collaborators().values().map(|c| c.user_id);
10762 this.user_store().read_with(cx, |user_store, cx| {
10763 user_store.participant_names(user_ids, cx)
10764 })
10765 }
10766}
10767
10768pub trait CompletionProvider {
10769 fn completions(
10770 &self,
10771 buffer: &Model<Buffer>,
10772 buffer_position: text::Anchor,
10773 cx: &mut ViewContext<Editor>,
10774 ) -> Task<Result<Vec<Completion>>>;
10775
10776 fn resolve_completions(
10777 &self,
10778 buffer: Model<Buffer>,
10779 completion_indices: Vec<usize>,
10780 completions: Arc<RwLock<Box<[Completion]>>>,
10781 cx: &mut ViewContext<Editor>,
10782 ) -> Task<Result<bool>>;
10783
10784 fn apply_additional_edits_for_completion(
10785 &self,
10786 buffer: Model<Buffer>,
10787 completion: Completion,
10788 push_to_history: bool,
10789 cx: &mut ViewContext<Editor>,
10790 ) -> Task<Result<Option<language::Transaction>>>;
10791}
10792
10793impl CompletionProvider for Model<Project> {
10794 fn completions(
10795 &self,
10796 buffer: &Model<Buffer>,
10797 buffer_position: text::Anchor,
10798 cx: &mut ViewContext<Editor>,
10799 ) -> Task<Result<Vec<Completion>>> {
10800 self.update(cx, |project, cx| {
10801 project.completions(&buffer, buffer_position, cx)
10802 })
10803 }
10804
10805 fn resolve_completions(
10806 &self,
10807 buffer: Model<Buffer>,
10808 completion_indices: Vec<usize>,
10809 completions: Arc<RwLock<Box<[Completion]>>>,
10810 cx: &mut ViewContext<Editor>,
10811 ) -> Task<Result<bool>> {
10812 self.update(cx, |project, cx| {
10813 project.resolve_completions(buffer, completion_indices, completions, cx)
10814 })
10815 }
10816
10817 fn apply_additional_edits_for_completion(
10818 &self,
10819 buffer: Model<Buffer>,
10820 completion: Completion,
10821 push_to_history: bool,
10822 cx: &mut ViewContext<Editor>,
10823 ) -> Task<Result<Option<language::Transaction>>> {
10824 self.update(cx, |project, cx| {
10825 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10826 })
10827 }
10828}
10829
10830fn inlay_hint_settings(
10831 location: Anchor,
10832 snapshot: &MultiBufferSnapshot,
10833 cx: &mut ViewContext<'_, Editor>,
10834) -> InlayHintSettings {
10835 let file = snapshot.file_at(location);
10836 let language = snapshot.language_at(location);
10837 let settings = all_language_settings(file, cx);
10838 settings
10839 .language(language.map(|l| l.name()).as_deref())
10840 .inlay_hints
10841}
10842
10843fn consume_contiguous_rows(
10844 contiguous_row_selections: &mut Vec<Selection<Point>>,
10845 selection: &Selection<Point>,
10846 display_map: &DisplaySnapshot,
10847 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10848) -> (MultiBufferRow, MultiBufferRow) {
10849 contiguous_row_selections.push(selection.clone());
10850 let start_row = MultiBufferRow(selection.start.row);
10851 let mut end_row = ending_row(selection, display_map);
10852
10853 while let Some(next_selection) = selections.peek() {
10854 if next_selection.start.row <= end_row.0 {
10855 end_row = ending_row(next_selection, display_map);
10856 contiguous_row_selections.push(selections.next().unwrap().clone());
10857 } else {
10858 break;
10859 }
10860 }
10861 (start_row, end_row)
10862}
10863
10864fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
10865 if next_selection.end.column > 0 || next_selection.is_empty() {
10866 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
10867 } else {
10868 MultiBufferRow(next_selection.end.row)
10869 }
10870}
10871
10872impl EditorSnapshot {
10873 pub fn remote_selections_in_range<'a>(
10874 &'a self,
10875 range: &'a Range<Anchor>,
10876 collaboration_hub: &dyn CollaborationHub,
10877 cx: &'a AppContext,
10878 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10879 let participant_names = collaboration_hub.user_names(cx);
10880 let participant_indices = collaboration_hub.user_participant_indices(cx);
10881 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10882 let collaborators_by_replica_id = collaborators_by_peer_id
10883 .iter()
10884 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10885 .collect::<HashMap<_, _>>();
10886 self.buffer_snapshot
10887 .remote_selections_in_range(range)
10888 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10889 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10890 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10891 let user_name = participant_names.get(&collaborator.user_id).cloned();
10892 Some(RemoteSelection {
10893 replica_id,
10894 selection,
10895 cursor_shape,
10896 line_mode,
10897 participant_index,
10898 peer_id: collaborator.peer_id,
10899 user_name,
10900 })
10901 })
10902 }
10903
10904 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10905 self.display_snapshot.buffer_snapshot.language_at(position)
10906 }
10907
10908 pub fn is_focused(&self) -> bool {
10909 self.is_focused
10910 }
10911
10912 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10913 self.placeholder_text.as_ref()
10914 }
10915
10916 pub fn scroll_position(&self) -> gpui::Point<f32> {
10917 self.scroll_anchor.scroll_position(&self.display_snapshot)
10918 }
10919
10920 pub fn gutter_dimensions(
10921 &self,
10922 font_id: FontId,
10923 font_size: Pixels,
10924 em_width: Pixels,
10925 max_line_number_width: Pixels,
10926 cx: &AppContext,
10927 ) -> GutterDimensions {
10928 if !self.show_gutter {
10929 return GutterDimensions::default();
10930 }
10931 let descent = cx.text_system().descent(font_id, font_size);
10932
10933 let show_git_gutter = matches!(
10934 ProjectSettings::get_global(cx).git.git_gutter,
10935 Some(GitGutterSetting::TrackedFiles)
10936 );
10937 let gutter_settings = EditorSettings::get_global(cx).gutter;
10938 let gutter_lines_enabled = gutter_settings.line_numbers;
10939 let line_gutter_width = if gutter_lines_enabled {
10940 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10941 let min_width_for_number_on_gutter = em_width * 4.0;
10942 max_line_number_width.max(min_width_for_number_on_gutter)
10943 } else {
10944 0.0.into()
10945 };
10946
10947 let git_blame_entries_width = self
10948 .render_git_blame_gutter
10949 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10950
10951 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10952 left_padding += if gutter_settings.code_actions {
10953 em_width * 3.0
10954 } else if show_git_gutter && gutter_lines_enabled {
10955 em_width * 2.0
10956 } else if show_git_gutter || gutter_lines_enabled {
10957 em_width
10958 } else {
10959 px(0.)
10960 };
10961
10962 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10963 em_width * 4.0
10964 } else if gutter_settings.folds {
10965 em_width * 3.0
10966 } else if gutter_lines_enabled {
10967 em_width
10968 } else {
10969 px(0.)
10970 };
10971
10972 GutterDimensions {
10973 left_padding,
10974 right_padding,
10975 width: line_gutter_width + left_padding + right_padding,
10976 margin: -descent,
10977 git_blame_entries_width,
10978 }
10979 }
10980}
10981
10982impl Deref for EditorSnapshot {
10983 type Target = DisplaySnapshot;
10984
10985 fn deref(&self) -> &Self::Target {
10986 &self.display_snapshot
10987 }
10988}
10989
10990#[derive(Clone, Debug, PartialEq, Eq)]
10991pub enum EditorEvent {
10992 InputIgnored {
10993 text: Arc<str>,
10994 },
10995 InputHandled {
10996 utf16_range_to_replace: Option<Range<isize>>,
10997 text: Arc<str>,
10998 },
10999 ExcerptsAdded {
11000 buffer: Model<Buffer>,
11001 predecessor: ExcerptId,
11002 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11003 },
11004 ExcerptsRemoved {
11005 ids: Vec<ExcerptId>,
11006 },
11007 BufferEdited,
11008 Edited,
11009 Reparsed,
11010 Focused,
11011 Blurred,
11012 DirtyChanged,
11013 Saved,
11014 TitleChanged,
11015 DiffBaseChanged,
11016 SelectionsChanged {
11017 local: bool,
11018 },
11019 ScrollPositionChanged {
11020 local: bool,
11021 autoscroll: bool,
11022 },
11023 Closed,
11024 TransactionUndone {
11025 transaction_id: clock::Lamport,
11026 },
11027 TransactionBegun {
11028 transaction_id: clock::Lamport,
11029 },
11030}
11031
11032impl EventEmitter<EditorEvent> for Editor {}
11033
11034impl FocusableView for Editor {
11035 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11036 self.focus_handle.clone()
11037 }
11038}
11039
11040impl Render for Editor {
11041 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11042 let settings = ThemeSettings::get_global(cx);
11043
11044 let text_style = match self.mode {
11045 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11046 color: cx.theme().colors().editor_foreground,
11047 font_family: settings.ui_font.family.clone(),
11048 font_features: settings.ui_font.features.clone(),
11049 font_size: rems(0.875).into(),
11050 font_weight: FontWeight::NORMAL,
11051 font_style: FontStyle::Normal,
11052 line_height: relative(settings.buffer_line_height.value()),
11053 background_color: None,
11054 underline: None,
11055 strikethrough: None,
11056 white_space: WhiteSpace::Normal,
11057 },
11058 EditorMode::Full => TextStyle {
11059 color: cx.theme().colors().editor_foreground,
11060 font_family: settings.buffer_font.family.clone(),
11061 font_features: settings.buffer_font.features.clone(),
11062 font_size: settings.buffer_font_size(cx).into(),
11063 font_weight: FontWeight::NORMAL,
11064 font_style: FontStyle::Normal,
11065 line_height: relative(settings.buffer_line_height.value()),
11066 background_color: None,
11067 underline: None,
11068 strikethrough: None,
11069 white_space: WhiteSpace::Normal,
11070 },
11071 };
11072
11073 let background = match self.mode {
11074 EditorMode::SingleLine => cx.theme().system().transparent,
11075 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11076 EditorMode::Full => cx.theme().colors().editor_background,
11077 };
11078
11079 EditorElement::new(
11080 cx.view(),
11081 EditorStyle {
11082 background,
11083 local_player: cx.theme().players().local(),
11084 text: text_style,
11085 scrollbar_width: px(13.),
11086 syntax: cx.theme().syntax().clone(),
11087 status: cx.theme().status().clone(),
11088 inlay_hints_style: HighlightStyle {
11089 color: Some(cx.theme().status().hint),
11090 ..HighlightStyle::default()
11091 },
11092 suggestions_style: HighlightStyle {
11093 color: Some(cx.theme().status().predictive),
11094 ..HighlightStyle::default()
11095 },
11096 },
11097 )
11098 }
11099}
11100
11101impl ViewInputHandler for Editor {
11102 fn text_for_range(
11103 &mut self,
11104 range_utf16: Range<usize>,
11105 cx: &mut ViewContext<Self>,
11106 ) -> Option<String> {
11107 Some(
11108 self.buffer
11109 .read(cx)
11110 .read(cx)
11111 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11112 .collect(),
11113 )
11114 }
11115
11116 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11117 // Prevent the IME menu from appearing when holding down an alphabetic key
11118 // while input is disabled.
11119 if !self.input_enabled {
11120 return None;
11121 }
11122
11123 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11124 Some(range.start.0..range.end.0)
11125 }
11126
11127 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11128 let snapshot = self.buffer.read(cx).read(cx);
11129 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11130 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11131 }
11132
11133 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11134 self.clear_highlights::<InputComposition>(cx);
11135 self.ime_transaction.take();
11136 }
11137
11138 fn replace_text_in_range(
11139 &mut self,
11140 range_utf16: Option<Range<usize>>,
11141 text: &str,
11142 cx: &mut ViewContext<Self>,
11143 ) {
11144 if !self.input_enabled {
11145 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11146 return;
11147 }
11148
11149 self.transact(cx, |this, cx| {
11150 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11151 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11152 Some(this.selection_replacement_ranges(range_utf16, cx))
11153 } else {
11154 this.marked_text_ranges(cx)
11155 };
11156
11157 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11158 let newest_selection_id = this.selections.newest_anchor().id;
11159 this.selections
11160 .all::<OffsetUtf16>(cx)
11161 .iter()
11162 .zip(ranges_to_replace.iter())
11163 .find_map(|(selection, range)| {
11164 if selection.id == newest_selection_id {
11165 Some(
11166 (range.start.0 as isize - selection.head().0 as isize)
11167 ..(range.end.0 as isize - selection.head().0 as isize),
11168 )
11169 } else {
11170 None
11171 }
11172 })
11173 });
11174
11175 cx.emit(EditorEvent::InputHandled {
11176 utf16_range_to_replace: range_to_replace,
11177 text: text.into(),
11178 });
11179
11180 if let Some(new_selected_ranges) = new_selected_ranges {
11181 this.change_selections(None, cx, |selections| {
11182 selections.select_ranges(new_selected_ranges)
11183 });
11184 this.backspace(&Default::default(), cx);
11185 }
11186
11187 this.handle_input(text, cx);
11188 });
11189
11190 if let Some(transaction) = self.ime_transaction {
11191 self.buffer.update(cx, |buffer, cx| {
11192 buffer.group_until_transaction(transaction, cx);
11193 });
11194 }
11195
11196 self.unmark_text(cx);
11197 }
11198
11199 fn replace_and_mark_text_in_range(
11200 &mut self,
11201 range_utf16: Option<Range<usize>>,
11202 text: &str,
11203 new_selected_range_utf16: Option<Range<usize>>,
11204 cx: &mut ViewContext<Self>,
11205 ) {
11206 if !self.input_enabled {
11207 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11208 return;
11209 }
11210
11211 let transaction = self.transact(cx, |this, cx| {
11212 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11213 let snapshot = this.buffer.read(cx).read(cx);
11214 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11215 for marked_range in &mut marked_ranges {
11216 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11217 marked_range.start.0 += relative_range_utf16.start;
11218 marked_range.start =
11219 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11220 marked_range.end =
11221 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11222 }
11223 }
11224 Some(marked_ranges)
11225 } else if let Some(range_utf16) = range_utf16 {
11226 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11227 Some(this.selection_replacement_ranges(range_utf16, cx))
11228 } else {
11229 None
11230 };
11231
11232 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11233 let newest_selection_id = this.selections.newest_anchor().id;
11234 this.selections
11235 .all::<OffsetUtf16>(cx)
11236 .iter()
11237 .zip(ranges_to_replace.iter())
11238 .find_map(|(selection, range)| {
11239 if selection.id == newest_selection_id {
11240 Some(
11241 (range.start.0 as isize - selection.head().0 as isize)
11242 ..(range.end.0 as isize - selection.head().0 as isize),
11243 )
11244 } else {
11245 None
11246 }
11247 })
11248 });
11249
11250 cx.emit(EditorEvent::InputHandled {
11251 utf16_range_to_replace: range_to_replace,
11252 text: text.into(),
11253 });
11254
11255 if let Some(ranges) = ranges_to_replace {
11256 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11257 }
11258
11259 let marked_ranges = {
11260 let snapshot = this.buffer.read(cx).read(cx);
11261 this.selections
11262 .disjoint_anchors()
11263 .iter()
11264 .map(|selection| {
11265 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11266 })
11267 .collect::<Vec<_>>()
11268 };
11269
11270 if text.is_empty() {
11271 this.unmark_text(cx);
11272 } else {
11273 this.highlight_text::<InputComposition>(
11274 marked_ranges.clone(),
11275 HighlightStyle {
11276 underline: Some(UnderlineStyle {
11277 thickness: px(1.),
11278 color: None,
11279 wavy: false,
11280 }),
11281 ..Default::default()
11282 },
11283 cx,
11284 );
11285 }
11286
11287 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11288 let use_autoclose = this.use_autoclose;
11289 this.set_use_autoclose(false);
11290 this.handle_input(text, cx);
11291 this.set_use_autoclose(use_autoclose);
11292
11293 if let Some(new_selected_range) = new_selected_range_utf16 {
11294 let snapshot = this.buffer.read(cx).read(cx);
11295 let new_selected_ranges = marked_ranges
11296 .into_iter()
11297 .map(|marked_range| {
11298 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11299 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11300 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11301 snapshot.clip_offset_utf16(new_start, Bias::Left)
11302 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11303 })
11304 .collect::<Vec<_>>();
11305
11306 drop(snapshot);
11307 this.change_selections(None, cx, |selections| {
11308 selections.select_ranges(new_selected_ranges)
11309 });
11310 }
11311 });
11312
11313 self.ime_transaction = self.ime_transaction.or(transaction);
11314 if let Some(transaction) = self.ime_transaction {
11315 self.buffer.update(cx, |buffer, cx| {
11316 buffer.group_until_transaction(transaction, cx);
11317 });
11318 }
11319
11320 if self.text_highlights::<InputComposition>(cx).is_none() {
11321 self.ime_transaction.take();
11322 }
11323 }
11324
11325 fn bounds_for_range(
11326 &mut self,
11327 range_utf16: Range<usize>,
11328 element_bounds: gpui::Bounds<Pixels>,
11329 cx: &mut ViewContext<Self>,
11330 ) -> Option<gpui::Bounds<Pixels>> {
11331 let text_layout_details = self.text_layout_details(cx);
11332 let style = &text_layout_details.editor_style;
11333 let font_id = cx.text_system().resolve_font(&style.text.font());
11334 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11335 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11336 let em_width = cx
11337 .text_system()
11338 .typographic_bounds(font_id, font_size, 'm')
11339 .unwrap()
11340 .size
11341 .width;
11342
11343 let snapshot = self.snapshot(cx);
11344 let scroll_position = snapshot.scroll_position();
11345 let scroll_left = scroll_position.x * em_width;
11346
11347 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11348 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11349 + self.gutter_dimensions.width;
11350 let y = line_height * (start.row().as_f32() - scroll_position.y);
11351
11352 Some(Bounds {
11353 origin: element_bounds.origin + point(x, y),
11354 size: size(em_width, line_height),
11355 })
11356 }
11357}
11358
11359trait SelectionExt {
11360 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11361 fn spanned_rows(
11362 &self,
11363 include_end_if_at_line_start: bool,
11364 map: &DisplaySnapshot,
11365 ) -> Range<MultiBufferRow>;
11366}
11367
11368impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11369 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11370 let start = self
11371 .start
11372 .to_point(&map.buffer_snapshot)
11373 .to_display_point(map);
11374 let end = self
11375 .end
11376 .to_point(&map.buffer_snapshot)
11377 .to_display_point(map);
11378 if self.reversed {
11379 end..start
11380 } else {
11381 start..end
11382 }
11383 }
11384
11385 fn spanned_rows(
11386 &self,
11387 include_end_if_at_line_start: bool,
11388 map: &DisplaySnapshot,
11389 ) -> Range<MultiBufferRow> {
11390 let start = self.start.to_point(&map.buffer_snapshot);
11391 let mut end = self.end.to_point(&map.buffer_snapshot);
11392 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11393 end.row -= 1;
11394 }
11395
11396 let buffer_start = map.prev_line_boundary(start).0;
11397 let buffer_end = map.next_line_boundary(end).0;
11398 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11399 }
11400}
11401
11402impl<T: InvalidationRegion> InvalidationStack<T> {
11403 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11404 where
11405 S: Clone + ToOffset,
11406 {
11407 while let Some(region) = self.last() {
11408 let all_selections_inside_invalidation_ranges =
11409 if selections.len() == region.ranges().len() {
11410 selections
11411 .iter()
11412 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11413 .all(|(selection, invalidation_range)| {
11414 let head = selection.head().to_offset(buffer);
11415 invalidation_range.start <= head && invalidation_range.end >= head
11416 })
11417 } else {
11418 false
11419 };
11420
11421 if all_selections_inside_invalidation_ranges {
11422 break;
11423 } else {
11424 self.pop();
11425 }
11426 }
11427 }
11428}
11429
11430impl<T> Default for InvalidationStack<T> {
11431 fn default() -> Self {
11432 Self(Default::default())
11433 }
11434}
11435
11436impl<T> Deref for InvalidationStack<T> {
11437 type Target = Vec<T>;
11438
11439 fn deref(&self) -> &Self::Target {
11440 &self.0
11441 }
11442}
11443
11444impl<T> DerefMut for InvalidationStack<T> {
11445 fn deref_mut(&mut self) -> &mut Self::Target {
11446 &mut self.0
11447 }
11448}
11449
11450impl InvalidationRegion for SnippetState {
11451 fn ranges(&self) -> &[Range<Anchor>] {
11452 &self.ranges[self.active_index]
11453 }
11454}
11455
11456pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11457 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11458
11459 Box::new(move |cx: &mut BlockContext| {
11460 let group_id: SharedString = cx.block_id.to_string().into();
11461
11462 let mut text_style = cx.text_style().clone();
11463 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11464 let theme_settings = ThemeSettings::get_global(cx);
11465 text_style.font_family = theme_settings.buffer_font.family.clone();
11466 text_style.font_style = theme_settings.buffer_font.style;
11467 text_style.font_features = theme_settings.buffer_font.features.clone();
11468 text_style.font_weight = theme_settings.buffer_font.weight;
11469
11470 let multi_line_diagnostic = diagnostic.message.contains('\n');
11471
11472 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11473 if multi_line_diagnostic {
11474 v_flex()
11475 } else {
11476 h_flex()
11477 }
11478 .children(diagnostic.is_primary.then(|| {
11479 IconButton::new(("close-block", block_id), IconName::XCircle)
11480 .icon_color(Color::Muted)
11481 .size(ButtonSize::Compact)
11482 .style(ButtonStyle::Transparent)
11483 .visible_on_hover(group_id.clone())
11484 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11485 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11486 }))
11487 .child(
11488 IconButton::new(("copy-block", block_id), IconName::Copy)
11489 .icon_color(Color::Muted)
11490 .size(ButtonSize::Compact)
11491 .style(ButtonStyle::Transparent)
11492 .visible_on_hover(group_id.clone())
11493 .on_click({
11494 let message = diagnostic.message.clone();
11495 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11496 })
11497 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11498 )
11499 };
11500
11501 let icon_size = buttons(&diagnostic, cx.block_id)
11502 .into_any_element()
11503 .layout_as_root(AvailableSpace::min_size(), cx);
11504
11505 h_flex()
11506 .id(cx.block_id)
11507 .group(group_id.clone())
11508 .relative()
11509 .size_full()
11510 .pl(cx.gutter_dimensions.width)
11511 .w(cx.max_width + cx.gutter_dimensions.width)
11512 .child(
11513 div()
11514 .flex()
11515 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11516 .flex_shrink(),
11517 )
11518 .child(buttons(&diagnostic, cx.block_id))
11519 .child(div().flex().flex_shrink_0().child(
11520 StyledText::new(text_without_backticks.clone()).with_highlights(
11521 &text_style,
11522 code_ranges.iter().map(|range| {
11523 (
11524 range.clone(),
11525 HighlightStyle {
11526 font_weight: Some(FontWeight::BOLD),
11527 ..Default::default()
11528 },
11529 )
11530 }),
11531 ),
11532 ))
11533 .into_any_element()
11534 })
11535}
11536
11537pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11538 let mut text_without_backticks = String::new();
11539 let mut code_ranges = Vec::new();
11540
11541 if let Some(source) = &diagnostic.source {
11542 text_without_backticks.push_str(&source);
11543 code_ranges.push(0..source.len());
11544 text_without_backticks.push_str(": ");
11545 }
11546
11547 let mut prev_offset = 0;
11548 let mut in_code_block = false;
11549 for (ix, _) in diagnostic
11550 .message
11551 .match_indices('`')
11552 .chain([(diagnostic.message.len(), "")])
11553 {
11554 let prev_len = text_without_backticks.len();
11555 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11556 prev_offset = ix + 1;
11557 if in_code_block {
11558 code_ranges.push(prev_len..text_without_backticks.len());
11559 in_code_block = false;
11560 } else {
11561 in_code_block = true;
11562 }
11563 }
11564
11565 (text_without_backticks.into(), code_ranges)
11566}
11567
11568fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11569 match (severity, valid) {
11570 (DiagnosticSeverity::ERROR, true) => colors.error,
11571 (DiagnosticSeverity::ERROR, false) => colors.error,
11572 (DiagnosticSeverity::WARNING, true) => colors.warning,
11573 (DiagnosticSeverity::WARNING, false) => colors.warning,
11574 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11575 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11576 (DiagnosticSeverity::HINT, true) => colors.info,
11577 (DiagnosticSeverity::HINT, false) => colors.info,
11578 _ => colors.ignored,
11579 }
11580}
11581
11582pub fn styled_runs_for_code_label<'a>(
11583 label: &'a CodeLabel,
11584 syntax_theme: &'a theme::SyntaxTheme,
11585) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11586 let fade_out = HighlightStyle {
11587 fade_out: Some(0.35),
11588 ..Default::default()
11589 };
11590
11591 let mut prev_end = label.filter_range.end;
11592 label
11593 .runs
11594 .iter()
11595 .enumerate()
11596 .flat_map(move |(ix, (range, highlight_id))| {
11597 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11598 style
11599 } else {
11600 return Default::default();
11601 };
11602 let mut muted_style = style;
11603 muted_style.highlight(fade_out);
11604
11605 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11606 if range.start >= label.filter_range.end {
11607 if range.start > prev_end {
11608 runs.push((prev_end..range.start, fade_out));
11609 }
11610 runs.push((range.clone(), muted_style));
11611 } else if range.end <= label.filter_range.end {
11612 runs.push((range.clone(), style));
11613 } else {
11614 runs.push((range.start..label.filter_range.end, style));
11615 runs.push((label.filter_range.end..range.end, muted_style));
11616 }
11617 prev_end = cmp::max(prev_end, range.end);
11618
11619 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11620 runs.push((prev_end..label.text.len(), fade_out));
11621 }
11622
11623 runs
11624 })
11625}
11626
11627pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11628 let mut prev_index = 0;
11629 let mut prev_codepoint: Option<char> = None;
11630 text.char_indices()
11631 .chain([(text.len(), '\0')])
11632 .filter_map(move |(index, codepoint)| {
11633 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11634 let is_boundary = index == text.len()
11635 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11636 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11637 if is_boundary {
11638 let chunk = &text[prev_index..index];
11639 prev_index = index;
11640 Some(chunk)
11641 } else {
11642 None
11643 }
11644 })
11645}
11646
11647trait RangeToAnchorExt {
11648 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11649}
11650
11651impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11652 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11653 let start_offset = self.start.to_offset(snapshot);
11654 let end_offset = self.end.to_offset(snapshot);
11655 if start_offset == end_offset {
11656 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11657 } else {
11658 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11659 }
11660 }
11661}
11662
11663pub trait RowExt {
11664 fn as_f32(&self) -> f32;
11665
11666 fn next_row(&self) -> Self;
11667
11668 fn previous_row(&self) -> Self;
11669
11670 fn minus(&self, other: Self) -> u32;
11671}
11672
11673impl RowExt for DisplayRow {
11674 fn as_f32(&self) -> f32 {
11675 self.0 as f32
11676 }
11677
11678 fn next_row(&self) -> Self {
11679 Self(self.0 + 1)
11680 }
11681
11682 fn previous_row(&self) -> Self {
11683 Self(self.0.saturating_sub(1))
11684 }
11685
11686 fn minus(&self, other: Self) -> u32 {
11687 self.0 - other.0
11688 }
11689}
11690
11691impl RowExt for MultiBufferRow {
11692 fn as_f32(&self) -> f32 {
11693 self.0 as f32
11694 }
11695
11696 fn next_row(&self) -> Self {
11697 Self(self.0 + 1)
11698 }
11699
11700 fn previous_row(&self) -> Self {
11701 Self(self.0.saturating_sub(1))
11702 }
11703
11704 fn minus(&self, other: Self) -> u32 {
11705 self.0 - other.0
11706 }
11707}
11708
11709trait RowRangeExt {
11710 type Row;
11711
11712 fn len(&self) -> usize;
11713
11714 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
11715}
11716
11717impl RowRangeExt for Range<MultiBufferRow> {
11718 type Row = MultiBufferRow;
11719
11720 fn len(&self) -> usize {
11721 (self.end.0 - self.start.0) as usize
11722 }
11723
11724 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
11725 (self.start.0..self.end.0).map(MultiBufferRow)
11726 }
11727}
11728
11729impl RowRangeExt for Range<DisplayRow> {
11730 type Row = DisplayRow;
11731
11732 fn len(&self) -> usize {
11733 (self.end.0 - self.start.0) as usize
11734 }
11735
11736 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
11737 (self.start.0..self.end.0).map(DisplayRow)
11738 }
11739}
11740
11741fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
11742 if hunk.diff_base_byte_range.is_empty() {
11743 DiffHunkStatus::Added
11744 } else if hunk.associated_range.is_empty() {
11745 DiffHunkStatus::Removed
11746 } else {
11747 DiffHunkStatus::Modified
11748 }
11749}