1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18pub mod display_map;
19mod editor_settings;
20mod element;
21mod hunk_diff;
22mod inlay_hint_cache;
23
24mod debounced_delay;
25mod git;
26mod highlight_matching_bracket;
27mod hover_links;
28mod hover_popover;
29mod inline_completion_provider;
30pub mod items;
31mod mouse_context_menu;
32pub mod movement;
33mod persistence;
34mod rust_analyzer_ext;
35pub mod scroll;
36mod selections_collection;
37pub mod tasks;
38
39#[cfg(test)]
40mod editor_tests;
41#[cfg(any(test, feature = "test-support"))]
42pub mod test;
43use ::git::diff::{DiffHunk, DiffHunkStatus};
44use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
45pub(crate) use actions::*;
46use aho_corasick::AhoCorasick;
47use anyhow::{anyhow, Context as _, Result};
48use blink_manager::BlinkManager;
49use client::{Collaborator, ParticipantIndex};
50use clock::ReplicaId;
51use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
52use convert_case::{Case, Casing};
53use debounced_delay::DebouncedDelay;
54pub use display_map::DisplayPoint;
55use display_map::*;
56pub use editor_settings::EditorSettings;
57use element::LineWithInvisibles;
58pub use element::{
59 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
60};
61use futures::FutureExt;
62use fuzzy::{StringMatch, StringMatchCandidate};
63use git::blame::GitBlame;
64use git::diff_hunk_to_display;
65use gpui::{
66 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
67 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
68 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
69 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
70 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
71 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
72 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
73};
74use highlight_matching_bracket::refresh_matching_bracket_highlights;
75use hover_popover::{hide_hover, HoverState};
76use hunk_diff::ExpandedHunks;
77pub(crate) use hunk_diff::HunkToExpand;
78use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
79pub use inline_completion_provider::*;
80pub use items::MAX_TAB_TITLE_LEN;
81use itertools::Itertools;
82use language::{
83 char_kind,
84 language_settings::{self, all_language_settings, InlayHintSettings},
85 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
86 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
87 Point, Selection, SelectionGoal, TransactionId,
88};
89use language::{BufferRow, Runnable, RunnableRange};
90use task::{ResolvedTask, TaskTemplate, TaskVariables};
91
92use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
93use lsp::{DiagnosticSeverity, LanguageServerId};
94use mouse_context_menu::MouseContextMenu;
95use movement::TextLayoutDetails;
96pub use multi_buffer::{
97 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
98 ToPoint,
99};
100use multi_buffer::{MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
101use ordered_float::OrderedFloat;
102use parking_lot::{Mutex, RwLock};
103use project::project_settings::{GitGutterSetting, ProjectSettings};
104use project::{
105 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
106 ProjectTransaction, TaskSourceKind, WorktreeId,
107};
108use rand::prelude::*;
109use rpc::{proto::*, ErrorExt};
110use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
111use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
112use serde::{Deserialize, Serialize};
113use settings::{Settings, SettingsStore};
114use smallvec::SmallVec;
115use snippet::Snippet;
116use std::ops::Not as _;
117use std::{
118 any::TypeId,
119 borrow::Cow,
120 cmp::{self, Ordering, Reverse},
121 mem,
122 num::NonZeroU32,
123 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
124 path::Path,
125 sync::Arc,
126 time::{Duration, Instant},
127};
128pub use sum_tree::Bias;
129use sum_tree::TreeMap;
130use text::{BufferId, OffsetUtf16, Rope};
131use theme::{
132 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
133 ThemeColors, ThemeSettings,
134};
135use ui::{
136 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
137 Tooltip,
138};
139use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
140use workspace::item::{ItemHandle, PreviewTabsSettings};
141use workspace::notifications::{DetachAndPromptErr, NotificationId};
142use workspace::{
143 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
144};
145use workspace::{OpenInTerminal, OpenTerminal, Toast};
146
147use crate::hover_links::find_url;
148
149pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
150const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
151const MAX_LINE_LEN: usize = 1024;
152const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
153const MAX_SELECTION_HISTORY_LEN: usize = 1024;
154pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
155#[doc(hidden)]
156pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
157#[doc(hidden)]
158pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
159
160pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
161
162pub fn render_parsed_markdown(
163 element_id: impl Into<ElementId>,
164 parsed: &language::ParsedMarkdown,
165 editor_style: &EditorStyle,
166 workspace: Option<WeakView<Workspace>>,
167 cx: &mut WindowContext,
168) -> InteractiveText {
169 let code_span_background_color = cx
170 .theme()
171 .colors()
172 .editor_document_highlight_read_background;
173
174 let highlights = gpui::combine_highlights(
175 parsed.highlights.iter().filter_map(|(range, highlight)| {
176 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
177 Some((range.clone(), highlight))
178 }),
179 parsed
180 .regions
181 .iter()
182 .zip(&parsed.region_ranges)
183 .filter_map(|(region, range)| {
184 if region.code {
185 Some((
186 range.clone(),
187 HighlightStyle {
188 background_color: Some(code_span_background_color),
189 ..Default::default()
190 },
191 ))
192 } else {
193 None
194 }
195 }),
196 );
197
198 let mut links = Vec::new();
199 let mut link_ranges = Vec::new();
200 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
201 if let Some(link) = region.link.clone() {
202 links.push(link);
203 link_ranges.push(range.clone());
204 }
205 }
206
207 InteractiveText::new(
208 element_id,
209 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
210 )
211 .on_click(link_ranges, move |clicked_range_ix, cx| {
212 match &links[clicked_range_ix] {
213 markdown::Link::Web { url } => cx.open_url(url),
214 markdown::Link::Path { path } => {
215 if let Some(workspace) = &workspace {
216 _ = workspace.update(cx, |workspace, cx| {
217 workspace.open_abs_path(path.clone(), false, cx).detach();
218 });
219 }
220 }
221 }
222 })
223}
224
225#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
226pub(crate) enum InlayId {
227 Suggestion(usize),
228 Hint(usize),
229}
230
231impl InlayId {
232 fn id(&self) -> usize {
233 match self {
234 Self::Suggestion(id) => *id,
235 Self::Hint(id) => *id,
236 }
237 }
238}
239
240enum DiffRowHighlight {}
241enum DocumentHighlightRead {}
242enum DocumentHighlightWrite {}
243enum InputComposition {}
244
245#[derive(Copy, Clone, PartialEq, Eq)]
246pub enum Direction {
247 Prev,
248 Next,
249}
250
251pub fn init_settings(cx: &mut AppContext) {
252 EditorSettings::register(cx);
253}
254
255pub fn init(cx: &mut AppContext) {
256 init_settings(cx);
257
258 workspace::register_project_item::<Editor>(cx);
259 workspace::register_followable_item::<Editor>(cx);
260 workspace::register_deserializable_item::<Editor>(cx);
261 cx.observe_new_views(
262 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
263 workspace.register_action(Editor::new_file);
264 workspace.register_action(Editor::new_file_in_direction);
265 },
266 )
267 .detach();
268
269 cx.on_action(move |_: &workspace::NewFile, cx| {
270 let app_state = workspace::AppState::global(cx);
271 if let Some(app_state) = app_state.upgrade() {
272 workspace::open_new(app_state, cx, |workspace, cx| {
273 Editor::new_file(workspace, &Default::default(), cx)
274 })
275 .detach();
276 }
277 });
278 cx.on_action(move |_: &workspace::NewWindow, cx| {
279 let app_state = workspace::AppState::global(cx);
280 if let Some(app_state) = app_state.upgrade() {
281 workspace::open_new(app_state, cx, |workspace, cx| {
282 Editor::new_file(workspace, &Default::default(), cx)
283 })
284 .detach();
285 }
286 });
287}
288
289pub struct SearchWithinRange;
290
291trait InvalidationRegion {
292 fn ranges(&self) -> &[Range<Anchor>];
293}
294
295#[derive(Clone, Debug, PartialEq)]
296pub enum SelectPhase {
297 Begin {
298 position: DisplayPoint,
299 add: bool,
300 click_count: usize,
301 },
302 BeginColumnar {
303 position: DisplayPoint,
304 goal_column: u32,
305 },
306 Extend {
307 position: DisplayPoint,
308 click_count: usize,
309 },
310 Update {
311 position: DisplayPoint,
312 goal_column: u32,
313 scroll_delta: gpui::Point<f32>,
314 },
315 End,
316}
317
318#[derive(Clone, Debug)]
319pub enum SelectMode {
320 Character,
321 Word(Range<Anchor>),
322 Line(Range<Anchor>),
323 All,
324}
325
326#[derive(Copy, Clone, PartialEq, Eq, Debug)]
327pub enum EditorMode {
328 SingleLine,
329 AutoHeight { max_lines: usize },
330 Full,
331}
332
333#[derive(Clone, Debug)]
334pub enum SoftWrap {
335 None,
336 PreferLine,
337 EditorWidth,
338 Column(u32),
339}
340
341#[derive(Clone)]
342pub struct EditorStyle {
343 pub background: Hsla,
344 pub local_player: PlayerColor,
345 pub text: TextStyle,
346 pub scrollbar_width: Pixels,
347 pub syntax: Arc<SyntaxTheme>,
348 pub status: StatusColors,
349 pub inlay_hints_style: HighlightStyle,
350 pub suggestions_style: HighlightStyle,
351}
352
353impl Default for EditorStyle {
354 fn default() -> Self {
355 Self {
356 background: Hsla::default(),
357 local_player: PlayerColor::default(),
358 text: TextStyle::default(),
359 scrollbar_width: Pixels::default(),
360 syntax: Default::default(),
361 // HACK: Status colors don't have a real default.
362 // We should look into removing the status colors from the editor
363 // style and retrieve them directly from the theme.
364 status: StatusColors::dark(),
365 inlay_hints_style: HighlightStyle::default(),
366 suggestions_style: HighlightStyle::default(),
367 }
368 }
369}
370
371type CompletionId = usize;
372
373// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
374// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
375
376type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
377
378struct ScrollbarMarkerState {
379 scrollbar_size: Size<Pixels>,
380 dirty: bool,
381 markers: Arc<[PaintQuad]>,
382 pending_refresh: Option<Task<Result<()>>>,
383}
384
385impl ScrollbarMarkerState {
386 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
387 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
388 }
389}
390
391impl Default for ScrollbarMarkerState {
392 fn default() -> Self {
393 Self {
394 scrollbar_size: Size::default(),
395 dirty: false,
396 markers: Arc::from([]),
397 pending_refresh: None,
398 }
399 }
400}
401
402#[derive(Clone, Debug)]
403struct RunnableTasks {
404 templates: Vec<(TaskSourceKind, TaskTemplate)>,
405 // We need the column at which the task context evaluation should take place.
406 column: u32,
407 extra_variables: HashMap<String, String>,
408}
409
410#[derive(Clone)]
411struct ResolvedTasks {
412 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
413 position: Anchor,
414}
415
416/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
417///
418/// See the [module level documentation](self) for more information.
419pub struct Editor {
420 focus_handle: FocusHandle,
421 /// The text buffer being edited
422 buffer: Model<MultiBuffer>,
423 /// Map of how text in the buffer should be displayed.
424 /// Handles soft wraps, folds, fake inlay text insertions, etc.
425 pub display_map: Model<DisplayMap>,
426 pub selections: SelectionsCollection,
427 pub scroll_manager: ScrollManager,
428 columnar_selection_tail: Option<Anchor>,
429 add_selections_state: Option<AddSelectionsState>,
430 select_next_state: Option<SelectNextState>,
431 select_prev_state: Option<SelectNextState>,
432 selection_history: SelectionHistory,
433 autoclose_regions: Vec<AutocloseRegion>,
434 snippet_stack: InvalidationStack<SnippetState>,
435 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
436 ime_transaction: Option<TransactionId>,
437 active_diagnostics: Option<ActiveDiagnosticGroup>,
438 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
439 project: Option<Model<Project>>,
440 completion_provider: Option<Box<dyn CompletionProvider>>,
441 collaboration_hub: Option<Box<dyn CollaborationHub>>,
442 blink_manager: Model<BlinkManager>,
443 show_cursor_names: bool,
444 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
445 pub show_local_selections: bool,
446 mode: EditorMode,
447 show_breadcrumbs: bool,
448 show_gutter: bool,
449 show_wrap_guides: Option<bool>,
450 placeholder_text: Option<Arc<str>>,
451 highlight_order: usize,
452 highlighted_rows: HashMap<TypeId, Vec<(usize, RangeInclusive<Anchor>, Option<Hsla>)>>,
453 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
454 scrollbar_marker_state: ScrollbarMarkerState,
455 nav_history: Option<ItemNavHistory>,
456 context_menu: RwLock<Option<ContextMenu>>,
457 mouse_context_menu: Option<MouseContextMenu>,
458 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
459 find_all_references_task_sources: Vec<Anchor>,
460 next_completion_id: CompletionId,
461 completion_documentation_pre_resolve_debounce: DebouncedDelay,
462 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
463 code_actions_task: Option<Task<()>>,
464 document_highlights_task: Option<Task<()>>,
465 pending_rename: Option<RenameState>,
466 searchable: bool,
467 cursor_shape: CursorShape,
468 collapse_matches: bool,
469 autoindent_mode: Option<AutoindentMode>,
470 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
471 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
472 input_enabled: bool,
473 use_modal_editing: bool,
474 read_only: bool,
475 leader_peer_id: Option<PeerId>,
476 remote_id: Option<ViewId>,
477 hover_state: HoverState,
478 gutter_hovered: bool,
479 hovered_link_state: Option<HoveredLinkState>,
480 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
481 active_inline_completion: Option<Inlay>,
482 show_inline_completions: bool,
483 inlay_hint_cache: InlayHintCache,
484 expanded_hunks: ExpandedHunks,
485 next_inlay_id: usize,
486 _subscriptions: Vec<Subscription>,
487 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
488 gutter_dimensions: GutterDimensions,
489 pub vim_replace_map: HashMap<Range<usize>, String>,
490 style: Option<EditorStyle>,
491 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
492 use_autoclose: bool,
493 auto_replace_emoji_shortcode: bool,
494 show_git_blame_gutter: bool,
495 show_git_blame_inline: bool,
496 show_git_blame_inline_delay_task: Option<Task<()>>,
497 git_blame_inline_enabled: bool,
498 blame: Option<Model<GitBlame>>,
499 blame_subscription: Option<Subscription>,
500 custom_context_menu: Option<
501 Box<
502 dyn 'static
503 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
504 >,
505 >,
506 last_bounds: Option<Bounds<Pixels>>,
507 expect_bounds_change: Option<Bounds<Pixels>>,
508 tasks: HashMap<(BufferId, BufferRow), (usize, RunnableTasks)>,
509 tasks_update_task: Option<Task<()>>,
510}
511
512#[derive(Clone)]
513pub struct EditorSnapshot {
514 pub mode: EditorMode,
515 show_gutter: bool,
516 render_git_blame_gutter: bool,
517 pub display_snapshot: DisplaySnapshot,
518 pub placeholder_text: Option<Arc<str>>,
519 is_focused: bool,
520 scroll_anchor: ScrollAnchor,
521 ongoing_scroll: OngoingScroll,
522}
523
524const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
525
526#[derive(Debug, Clone, Copy)]
527pub struct GutterDimensions {
528 pub left_padding: Pixels,
529 pub right_padding: Pixels,
530 pub width: Pixels,
531 pub margin: Pixels,
532 pub git_blame_entries_width: Option<Pixels>,
533}
534
535impl Default for GutterDimensions {
536 fn default() -> Self {
537 Self {
538 left_padding: Pixels::ZERO,
539 right_padding: Pixels::ZERO,
540 width: Pixels::ZERO,
541 margin: Pixels::ZERO,
542 git_blame_entries_width: None,
543 }
544 }
545}
546
547#[derive(Debug)]
548pub struct RemoteSelection {
549 pub replica_id: ReplicaId,
550 pub selection: Selection<Anchor>,
551 pub cursor_shape: CursorShape,
552 pub peer_id: PeerId,
553 pub line_mode: bool,
554 pub participant_index: Option<ParticipantIndex>,
555 pub user_name: Option<SharedString>,
556}
557
558#[derive(Clone, Debug)]
559struct SelectionHistoryEntry {
560 selections: Arc<[Selection<Anchor>]>,
561 select_next_state: Option<SelectNextState>,
562 select_prev_state: Option<SelectNextState>,
563 add_selections_state: Option<AddSelectionsState>,
564}
565
566enum SelectionHistoryMode {
567 Normal,
568 Undoing,
569 Redoing,
570}
571
572#[derive(Clone, PartialEq, Eq, Hash)]
573struct HoveredCursor {
574 replica_id: u16,
575 selection_id: usize,
576}
577
578impl Default for SelectionHistoryMode {
579 fn default() -> Self {
580 Self::Normal
581 }
582}
583
584#[derive(Default)]
585struct SelectionHistory {
586 #[allow(clippy::type_complexity)]
587 selections_by_transaction:
588 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
589 mode: SelectionHistoryMode,
590 undo_stack: VecDeque<SelectionHistoryEntry>,
591 redo_stack: VecDeque<SelectionHistoryEntry>,
592}
593
594impl SelectionHistory {
595 fn insert_transaction(
596 &mut self,
597 transaction_id: TransactionId,
598 selections: Arc<[Selection<Anchor>]>,
599 ) {
600 self.selections_by_transaction
601 .insert(transaction_id, (selections, None));
602 }
603
604 #[allow(clippy::type_complexity)]
605 fn transaction(
606 &self,
607 transaction_id: TransactionId,
608 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
609 self.selections_by_transaction.get(&transaction_id)
610 }
611
612 #[allow(clippy::type_complexity)]
613 fn transaction_mut(
614 &mut self,
615 transaction_id: TransactionId,
616 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
617 self.selections_by_transaction.get_mut(&transaction_id)
618 }
619
620 fn push(&mut self, entry: SelectionHistoryEntry) {
621 if !entry.selections.is_empty() {
622 match self.mode {
623 SelectionHistoryMode::Normal => {
624 self.push_undo(entry);
625 self.redo_stack.clear();
626 }
627 SelectionHistoryMode::Undoing => self.push_redo(entry),
628 SelectionHistoryMode::Redoing => self.push_undo(entry),
629 }
630 }
631 }
632
633 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
634 if self
635 .undo_stack
636 .back()
637 .map_or(true, |e| e.selections != entry.selections)
638 {
639 self.undo_stack.push_back(entry);
640 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
641 self.undo_stack.pop_front();
642 }
643 }
644 }
645
646 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
647 if self
648 .redo_stack
649 .back()
650 .map_or(true, |e| e.selections != entry.selections)
651 {
652 self.redo_stack.push_back(entry);
653 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
654 self.redo_stack.pop_front();
655 }
656 }
657 }
658}
659
660#[derive(Clone, Debug)]
661struct AddSelectionsState {
662 above: bool,
663 stack: Vec<usize>,
664}
665
666#[derive(Clone)]
667struct SelectNextState {
668 query: AhoCorasick,
669 wordwise: bool,
670 done: bool,
671}
672
673impl std::fmt::Debug for SelectNextState {
674 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
675 f.debug_struct(std::any::type_name::<Self>())
676 .field("wordwise", &self.wordwise)
677 .field("done", &self.done)
678 .finish()
679 }
680}
681
682#[derive(Debug)]
683struct AutocloseRegion {
684 selection_id: usize,
685 range: Range<Anchor>,
686 pair: BracketPair,
687}
688
689#[derive(Debug)]
690struct SnippetState {
691 ranges: Vec<Vec<Range<Anchor>>>,
692 active_index: usize,
693}
694
695#[doc(hidden)]
696pub struct RenameState {
697 pub range: Range<Anchor>,
698 pub old_name: Arc<str>,
699 pub editor: View<Editor>,
700 block_id: BlockId,
701}
702
703struct InvalidationStack<T>(Vec<T>);
704
705struct RegisteredInlineCompletionProvider {
706 provider: Arc<dyn InlineCompletionProviderHandle>,
707 _subscription: Subscription,
708}
709
710enum ContextMenu {
711 Completions(CompletionsMenu),
712 CodeActions(CodeActionsMenu),
713}
714
715impl ContextMenu {
716 fn select_first(
717 &mut self,
718 project: Option<&Model<Project>>,
719 cx: &mut ViewContext<Editor>,
720 ) -> bool {
721 if self.visible() {
722 match self {
723 ContextMenu::Completions(menu) => menu.select_first(project, cx),
724 ContextMenu::CodeActions(menu) => menu.select_first(cx),
725 }
726 true
727 } else {
728 false
729 }
730 }
731
732 fn select_prev(
733 &mut self,
734 project: Option<&Model<Project>>,
735 cx: &mut ViewContext<Editor>,
736 ) -> bool {
737 if self.visible() {
738 match self {
739 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
740 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
741 }
742 true
743 } else {
744 false
745 }
746 }
747
748 fn select_next(
749 &mut self,
750 project: Option<&Model<Project>>,
751 cx: &mut ViewContext<Editor>,
752 ) -> bool {
753 if self.visible() {
754 match self {
755 ContextMenu::Completions(menu) => menu.select_next(project, cx),
756 ContextMenu::CodeActions(menu) => menu.select_next(cx),
757 }
758 true
759 } else {
760 false
761 }
762 }
763
764 fn select_last(
765 &mut self,
766 project: Option<&Model<Project>>,
767 cx: &mut ViewContext<Editor>,
768 ) -> bool {
769 if self.visible() {
770 match self {
771 ContextMenu::Completions(menu) => menu.select_last(project, cx),
772 ContextMenu::CodeActions(menu) => menu.select_last(cx),
773 }
774 true
775 } else {
776 false
777 }
778 }
779
780 fn visible(&self) -> bool {
781 match self {
782 ContextMenu::Completions(menu) => menu.visible(),
783 ContextMenu::CodeActions(menu) => menu.visible(),
784 }
785 }
786
787 fn render(
788 &self,
789 cursor_position: DisplayPoint,
790 style: &EditorStyle,
791 max_height: Pixels,
792 workspace: Option<WeakView<Workspace>>,
793 cx: &mut ViewContext<Editor>,
794 ) -> (ContextMenuOrigin, AnyElement) {
795 match self {
796 ContextMenu::Completions(menu) => (
797 ContextMenuOrigin::EditorPoint(cursor_position),
798 menu.render(style, max_height, workspace, cx),
799 ),
800 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
801 }
802 }
803}
804
805enum ContextMenuOrigin {
806 EditorPoint(DisplayPoint),
807 GutterIndicator(DisplayRow),
808}
809
810#[derive(Clone)]
811struct CompletionsMenu {
812 id: CompletionId,
813 initial_position: Anchor,
814 buffer: Model<Buffer>,
815 completions: Arc<RwLock<Box<[Completion]>>>,
816 match_candidates: Arc<[StringMatchCandidate]>,
817 matches: Arc<[StringMatch]>,
818 selected_item: usize,
819 scroll_handle: UniformListScrollHandle,
820 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
821}
822
823impl CompletionsMenu {
824 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
825 self.selected_item = 0;
826 self.scroll_handle.scroll_to_item(self.selected_item);
827 self.attempt_resolve_selected_completion_documentation(project, cx);
828 cx.notify();
829 }
830
831 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
832 if self.selected_item > 0 {
833 self.selected_item -= 1;
834 } else {
835 self.selected_item = self.matches.len() - 1;
836 }
837 self.scroll_handle.scroll_to_item(self.selected_item);
838 self.attempt_resolve_selected_completion_documentation(project, cx);
839 cx.notify();
840 }
841
842 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
843 if self.selected_item + 1 < self.matches.len() {
844 self.selected_item += 1;
845 } else {
846 self.selected_item = 0;
847 }
848 self.scroll_handle.scroll_to_item(self.selected_item);
849 self.attempt_resolve_selected_completion_documentation(project, cx);
850 cx.notify();
851 }
852
853 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
854 self.selected_item = self.matches.len() - 1;
855 self.scroll_handle.scroll_to_item(self.selected_item);
856 self.attempt_resolve_selected_completion_documentation(project, cx);
857 cx.notify();
858 }
859
860 fn pre_resolve_completion_documentation(
861 buffer: Model<Buffer>,
862 completions: Arc<RwLock<Box<[Completion]>>>,
863 matches: Arc<[StringMatch]>,
864 editor: &Editor,
865 cx: &mut ViewContext<Editor>,
866 ) -> Task<()> {
867 let settings = EditorSettings::get_global(cx);
868 if !settings.show_completion_documentation {
869 return Task::ready(());
870 }
871
872 let Some(provider) = editor.completion_provider.as_ref() else {
873 return Task::ready(());
874 };
875
876 let resolve_task = provider.resolve_completions(
877 buffer,
878 matches.iter().map(|m| m.candidate_id).collect(),
879 completions.clone(),
880 cx,
881 );
882
883 return cx.spawn(move |this, mut cx| async move {
884 if let Some(true) = resolve_task.await.log_err() {
885 this.update(&mut cx, |_, cx| cx.notify()).ok();
886 }
887 });
888 }
889
890 fn attempt_resolve_selected_completion_documentation(
891 &mut self,
892 project: Option<&Model<Project>>,
893 cx: &mut ViewContext<Editor>,
894 ) {
895 let settings = EditorSettings::get_global(cx);
896 if !settings.show_completion_documentation {
897 return;
898 }
899
900 let completion_index = self.matches[self.selected_item].candidate_id;
901 let Some(project) = project else {
902 return;
903 };
904
905 let resolve_task = project.update(cx, |project, cx| {
906 project.resolve_completions(
907 self.buffer.clone(),
908 vec![completion_index],
909 self.completions.clone(),
910 cx,
911 )
912 });
913
914 let delay_ms =
915 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
916 let delay = Duration::from_millis(delay_ms);
917
918 self.selected_completion_documentation_resolve_debounce
919 .lock()
920 .fire_new(delay, cx, |_, cx| {
921 cx.spawn(move |this, mut cx| async move {
922 if let Some(true) = resolve_task.await.log_err() {
923 this.update(&mut cx, |_, cx| cx.notify()).ok();
924 }
925 })
926 });
927 }
928
929 fn visible(&self) -> bool {
930 !self.matches.is_empty()
931 }
932
933 fn render(
934 &self,
935 style: &EditorStyle,
936 max_height: Pixels,
937 workspace: Option<WeakView<Workspace>>,
938 cx: &mut ViewContext<Editor>,
939 ) -> AnyElement {
940 let settings = EditorSettings::get_global(cx);
941 let show_completion_documentation = settings.show_completion_documentation;
942
943 let widest_completion_ix = self
944 .matches
945 .iter()
946 .enumerate()
947 .max_by_key(|(_, mat)| {
948 let completions = self.completions.read();
949 let completion = &completions[mat.candidate_id];
950 let documentation = &completion.documentation;
951
952 let mut len = completion.label.text.chars().count();
953 if let Some(Documentation::SingleLine(text)) = documentation {
954 if show_completion_documentation {
955 len += text.chars().count();
956 }
957 }
958
959 len
960 })
961 .map(|(ix, _)| ix);
962
963 let completions = self.completions.clone();
964 let matches = self.matches.clone();
965 let selected_item = self.selected_item;
966 let style = style.clone();
967
968 let multiline_docs = if show_completion_documentation {
969 let mat = &self.matches[selected_item];
970 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
971 Some(Documentation::MultiLinePlainText(text)) => {
972 Some(div().child(SharedString::from(text.clone())))
973 }
974 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
975 Some(div().child(render_parsed_markdown(
976 "completions_markdown",
977 parsed,
978 &style,
979 workspace,
980 cx,
981 )))
982 }
983 _ => None,
984 };
985 multiline_docs.map(|div| {
986 div.id("multiline_docs")
987 .max_h(max_height)
988 .flex_1()
989 .px_1p5()
990 .py_1()
991 .min_w(px(260.))
992 .max_w(px(640.))
993 .w(px(500.))
994 .overflow_y_scroll()
995 .occlude()
996 })
997 } else {
998 None
999 };
1000
1001 let list = uniform_list(
1002 cx.view().clone(),
1003 "completions",
1004 matches.len(),
1005 move |_editor, range, cx| {
1006 let start_ix = range.start;
1007 let completions_guard = completions.read();
1008
1009 matches[range]
1010 .iter()
1011 .enumerate()
1012 .map(|(ix, mat)| {
1013 let item_ix = start_ix + ix;
1014 let candidate_id = mat.candidate_id;
1015 let completion = &completions_guard[candidate_id];
1016
1017 let documentation = if show_completion_documentation {
1018 &completion.documentation
1019 } else {
1020 &None
1021 };
1022
1023 let highlights = gpui::combine_highlights(
1024 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1025 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1026 |(range, mut highlight)| {
1027 // Ignore font weight for syntax highlighting, as we'll use it
1028 // for fuzzy matches.
1029 highlight.font_weight = None;
1030
1031 if completion.lsp_completion.deprecated.unwrap_or(false) {
1032 highlight.strikethrough = Some(StrikethroughStyle {
1033 thickness: 1.0.into(),
1034 ..Default::default()
1035 });
1036 highlight.color = Some(cx.theme().colors().text_muted);
1037 }
1038
1039 (range, highlight)
1040 },
1041 ),
1042 );
1043 let completion_label = StyledText::new(completion.label.text.clone())
1044 .with_highlights(&style.text, highlights);
1045 let documentation_label =
1046 if let Some(Documentation::SingleLine(text)) = documentation {
1047 if text.trim().is_empty() {
1048 None
1049 } else {
1050 Some(
1051 h_flex().ml_4().child(
1052 Label::new(text.clone())
1053 .size(LabelSize::Small)
1054 .color(Color::Muted),
1055 ),
1056 )
1057 }
1058 } else {
1059 None
1060 };
1061
1062 div().min_w(px(220.)).max_w(px(540.)).child(
1063 ListItem::new(mat.candidate_id)
1064 .inset(true)
1065 .selected(item_ix == selected_item)
1066 .on_click(cx.listener(move |editor, _event, cx| {
1067 cx.stop_propagation();
1068 if let Some(task) = editor.confirm_completion(
1069 &ConfirmCompletion {
1070 item_ix: Some(item_ix),
1071 },
1072 cx,
1073 ) {
1074 task.detach_and_log_err(cx)
1075 }
1076 }))
1077 .child(h_flex().overflow_hidden().child(completion_label))
1078 .end_slot::<Div>(documentation_label),
1079 )
1080 })
1081 .collect()
1082 },
1083 )
1084 .occlude()
1085 .max_h(max_height)
1086 .track_scroll(self.scroll_handle.clone())
1087 .with_width_from_item(widest_completion_ix);
1088
1089 Popover::new()
1090 .child(list)
1091 .when_some(multiline_docs, |popover, multiline_docs| {
1092 popover.aside(multiline_docs)
1093 })
1094 .into_any_element()
1095 }
1096
1097 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1098 let mut matches = if let Some(query) = query {
1099 fuzzy::match_strings(
1100 &self.match_candidates,
1101 query,
1102 query.chars().any(|c| c.is_uppercase()),
1103 100,
1104 &Default::default(),
1105 executor,
1106 )
1107 .await
1108 } else {
1109 self.match_candidates
1110 .iter()
1111 .enumerate()
1112 .map(|(candidate_id, candidate)| StringMatch {
1113 candidate_id,
1114 score: Default::default(),
1115 positions: Default::default(),
1116 string: candidate.string.clone(),
1117 })
1118 .collect()
1119 };
1120
1121 // Remove all candidates where the query's start does not match the start of any word in the candidate
1122 if let Some(query) = query {
1123 if let Some(query_start) = query.chars().next() {
1124 matches.retain(|string_match| {
1125 split_words(&string_match.string).any(|word| {
1126 // Check that the first codepoint of the word as lowercase matches the first
1127 // codepoint of the query as lowercase
1128 word.chars()
1129 .flat_map(|codepoint| codepoint.to_lowercase())
1130 .zip(query_start.to_lowercase())
1131 .all(|(word_cp, query_cp)| word_cp == query_cp)
1132 })
1133 });
1134 }
1135 }
1136
1137 let completions = self.completions.read();
1138 matches.sort_unstable_by_key(|mat| {
1139 // We do want to strike a balance here between what the language server tells us
1140 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1141 // `Creat` and there is a local variable called `CreateComponent`).
1142 // So what we do is: we bucket all matches into two buckets
1143 // - Strong matches
1144 // - Weak matches
1145 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1146 // and the Weak matches are the rest.
1147 //
1148 // For the strong matches, we sort by the language-servers score first and for the weak
1149 // matches, we prefer our fuzzy finder first.
1150 //
1151 // The thinking behind that: it's useless to take the sort_text the language-server gives
1152 // us into account when it's obviously a bad match.
1153
1154 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1155 enum MatchScore<'a> {
1156 Strong {
1157 sort_text: Option<&'a str>,
1158 score: Reverse<OrderedFloat<f64>>,
1159 sort_key: (usize, &'a str),
1160 },
1161 Weak {
1162 score: Reverse<OrderedFloat<f64>>,
1163 sort_text: Option<&'a str>,
1164 sort_key: (usize, &'a str),
1165 },
1166 }
1167
1168 let completion = &completions[mat.candidate_id];
1169 let sort_key = completion.sort_key();
1170 let sort_text = completion.lsp_completion.sort_text.as_deref();
1171 let score = Reverse(OrderedFloat(mat.score));
1172
1173 if mat.score >= 0.2 {
1174 MatchScore::Strong {
1175 sort_text,
1176 score,
1177 sort_key,
1178 }
1179 } else {
1180 MatchScore::Weak {
1181 score,
1182 sort_text,
1183 sort_key,
1184 }
1185 }
1186 });
1187
1188 for mat in &mut matches {
1189 let completion = &completions[mat.candidate_id];
1190 mat.string.clone_from(&completion.label.text);
1191 for position in &mut mat.positions {
1192 *position += completion.label.filter_range.start;
1193 }
1194 }
1195 drop(completions);
1196
1197 self.matches = matches.into();
1198 self.selected_item = 0;
1199 }
1200}
1201
1202#[derive(Clone)]
1203struct CodeActionContents {
1204 tasks: Option<Arc<ResolvedTasks>>,
1205 actions: Option<Arc<[CodeAction]>>,
1206}
1207
1208impl CodeActionContents {
1209 fn len(&self) -> usize {
1210 match (&self.tasks, &self.actions) {
1211 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1212 (Some(tasks), None) => tasks.templates.len(),
1213 (None, Some(actions)) => actions.len(),
1214 (None, None) => 0,
1215 }
1216 }
1217
1218 fn is_empty(&self) -> bool {
1219 match (&self.tasks, &self.actions) {
1220 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1221 (Some(tasks), None) => tasks.templates.is_empty(),
1222 (None, Some(actions)) => actions.is_empty(),
1223 (None, None) => true,
1224 }
1225 }
1226
1227 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1228 self.tasks
1229 .iter()
1230 .flat_map(|tasks| {
1231 tasks
1232 .templates
1233 .iter()
1234 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1235 })
1236 .chain(self.actions.iter().flat_map(|actions| {
1237 actions
1238 .iter()
1239 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1240 }))
1241 }
1242 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1243 match (&self.tasks, &self.actions) {
1244 (Some(tasks), Some(actions)) => {
1245 if index < tasks.templates.len() {
1246 tasks
1247 .templates
1248 .get(index)
1249 .cloned()
1250 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1251 } else {
1252 actions
1253 .get(index - tasks.templates.len())
1254 .cloned()
1255 .map(CodeActionsItem::CodeAction)
1256 }
1257 }
1258 (Some(tasks), None) => tasks
1259 .templates
1260 .get(index)
1261 .cloned()
1262 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1263 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1264 (None, None) => None,
1265 }
1266 }
1267}
1268
1269#[allow(clippy::large_enum_variant)]
1270#[derive(Clone)]
1271enum CodeActionsItem {
1272 Task(TaskSourceKind, ResolvedTask),
1273 CodeAction(CodeAction),
1274}
1275
1276impl CodeActionsItem {
1277 fn as_task(&self) -> Option<&ResolvedTask> {
1278 let Self::Task(_, task) = self else {
1279 return None;
1280 };
1281 Some(task)
1282 }
1283 fn as_code_action(&self) -> Option<&CodeAction> {
1284 let Self::CodeAction(action) = self else {
1285 return None;
1286 };
1287 Some(action)
1288 }
1289 fn label(&self) -> String {
1290 match self {
1291 Self::CodeAction(action) => action.lsp_action.title.clone(),
1292 Self::Task(_, task) => task.resolved_label.clone(),
1293 }
1294 }
1295}
1296
1297struct CodeActionsMenu {
1298 actions: CodeActionContents,
1299 buffer: Model<Buffer>,
1300 selected_item: usize,
1301 scroll_handle: UniformListScrollHandle,
1302 deployed_from_indicator: Option<DisplayRow>,
1303}
1304
1305impl CodeActionsMenu {
1306 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1307 self.selected_item = 0;
1308 self.scroll_handle.scroll_to_item(self.selected_item);
1309 cx.notify()
1310 }
1311
1312 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1313 if self.selected_item > 0 {
1314 self.selected_item -= 1;
1315 } else {
1316 self.selected_item = self.actions.len() - 1;
1317 }
1318 self.scroll_handle.scroll_to_item(self.selected_item);
1319 cx.notify();
1320 }
1321
1322 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1323 if self.selected_item + 1 < self.actions.len() {
1324 self.selected_item += 1;
1325 } else {
1326 self.selected_item = 0;
1327 }
1328 self.scroll_handle.scroll_to_item(self.selected_item);
1329 cx.notify();
1330 }
1331
1332 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1333 self.selected_item = self.actions.len() - 1;
1334 self.scroll_handle.scroll_to_item(self.selected_item);
1335 cx.notify()
1336 }
1337
1338 fn visible(&self) -> bool {
1339 !self.actions.is_empty()
1340 }
1341
1342 fn render(
1343 &self,
1344 cursor_position: DisplayPoint,
1345 _style: &EditorStyle,
1346 max_height: Pixels,
1347 cx: &mut ViewContext<Editor>,
1348 ) -> (ContextMenuOrigin, AnyElement) {
1349 let actions = self.actions.clone();
1350 let selected_item = self.selected_item;
1351 let element = uniform_list(
1352 cx.view().clone(),
1353 "code_actions_menu",
1354 self.actions.len(),
1355 move |_this, range, cx| {
1356 actions
1357 .iter()
1358 .skip(range.start)
1359 .take(range.end - range.start)
1360 .enumerate()
1361 .map(|(ix, action)| {
1362 let item_ix = range.start + ix;
1363 let selected = selected_item == item_ix;
1364 let colors = cx.theme().colors();
1365 div()
1366 .px_2()
1367 .text_color(colors.text)
1368 .when(selected, |style| {
1369 style
1370 .bg(colors.element_active)
1371 .text_color(colors.text_accent)
1372 })
1373 .hover(|style| {
1374 style
1375 .bg(colors.element_hover)
1376 .text_color(colors.text_accent)
1377 })
1378 .whitespace_nowrap()
1379 .when_some(action.as_code_action(), |this, action| {
1380 this.on_mouse_down(
1381 MouseButton::Left,
1382 cx.listener(move |editor, _, cx| {
1383 cx.stop_propagation();
1384 if let Some(task) = editor.confirm_code_action(
1385 &ConfirmCodeAction {
1386 item_ix: Some(item_ix),
1387 },
1388 cx,
1389 ) {
1390 task.detach_and_log_err(cx)
1391 }
1392 }),
1393 )
1394 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1395 .child(SharedString::from(action.lsp_action.title.clone()))
1396 })
1397 .when_some(action.as_task(), |this, task| {
1398 this.on_mouse_down(
1399 MouseButton::Left,
1400 cx.listener(move |editor, _, cx| {
1401 cx.stop_propagation();
1402 if let Some(task) = editor.confirm_code_action(
1403 &ConfirmCodeAction {
1404 item_ix: Some(item_ix),
1405 },
1406 cx,
1407 ) {
1408 task.detach_and_log_err(cx)
1409 }
1410 }),
1411 )
1412 .child(SharedString::from(task.resolved_label.clone()))
1413 })
1414 })
1415 .collect()
1416 },
1417 )
1418 .elevation_1(cx)
1419 .px_2()
1420 .py_1()
1421 .max_h(max_height)
1422 .occlude()
1423 .track_scroll(self.scroll_handle.clone())
1424 .with_width_from_item(
1425 self.actions
1426 .iter()
1427 .enumerate()
1428 .max_by_key(|(_, action)| match action {
1429 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1430 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1431 })
1432 .map(|(ix, _)| ix),
1433 )
1434 .into_any_element();
1435
1436 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1437 ContextMenuOrigin::GutterIndicator(row)
1438 } else {
1439 ContextMenuOrigin::EditorPoint(cursor_position)
1440 };
1441
1442 (cursor_position, element)
1443 }
1444}
1445
1446#[derive(Debug)]
1447struct ActiveDiagnosticGroup {
1448 primary_range: Range<Anchor>,
1449 primary_message: String,
1450 group_id: usize,
1451 blocks: HashMap<BlockId, Diagnostic>,
1452 is_valid: bool,
1453}
1454
1455#[derive(Serialize, Deserialize)]
1456pub struct ClipboardSelection {
1457 pub len: usize,
1458 pub is_entire_line: bool,
1459 pub first_line_indent: u32,
1460}
1461
1462#[derive(Debug)]
1463pub(crate) struct NavigationData {
1464 cursor_anchor: Anchor,
1465 cursor_position: Point,
1466 scroll_anchor: ScrollAnchor,
1467 scroll_top_row: u32,
1468}
1469
1470enum GotoDefinitionKind {
1471 Symbol,
1472 Type,
1473 Implementation,
1474}
1475
1476#[derive(Debug, Clone)]
1477enum InlayHintRefreshReason {
1478 Toggle(bool),
1479 SettingsChange(InlayHintSettings),
1480 NewLinesShown,
1481 BufferEdited(HashSet<Arc<Language>>),
1482 RefreshRequested,
1483 ExcerptsRemoved(Vec<ExcerptId>),
1484}
1485
1486impl InlayHintRefreshReason {
1487 fn description(&self) -> &'static str {
1488 match self {
1489 Self::Toggle(_) => "toggle",
1490 Self::SettingsChange(_) => "settings change",
1491 Self::NewLinesShown => "new lines shown",
1492 Self::BufferEdited(_) => "buffer edited",
1493 Self::RefreshRequested => "refresh requested",
1494 Self::ExcerptsRemoved(_) => "excerpts removed",
1495 }
1496 }
1497}
1498
1499impl Editor {
1500 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1501 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1502 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1503 Self::new(EditorMode::SingleLine, buffer, None, cx)
1504 }
1505
1506 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1507 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1508 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1509 Self::new(EditorMode::Full, buffer, None, cx)
1510 }
1511
1512 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1513 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1514 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1515 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1516 }
1517
1518 pub fn for_buffer(
1519 buffer: Model<Buffer>,
1520 project: Option<Model<Project>>,
1521 cx: &mut ViewContext<Self>,
1522 ) -> Self {
1523 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1524 Self::new(EditorMode::Full, buffer, project, cx)
1525 }
1526
1527 pub fn for_multibuffer(
1528 buffer: Model<MultiBuffer>,
1529 project: Option<Model<Project>>,
1530 cx: &mut ViewContext<Self>,
1531 ) -> Self {
1532 Self::new(EditorMode::Full, buffer, project, cx)
1533 }
1534
1535 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1536 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1537 self.display_map.update(cx, |display_map, cx| {
1538 let snapshot = display_map.snapshot(cx);
1539 clone.display_map.update(cx, |display_map, cx| {
1540 display_map.set_state(&snapshot, cx);
1541 });
1542 });
1543 clone.selections.clone_state(&self.selections);
1544 clone.scroll_manager.clone_state(&self.scroll_manager);
1545 clone.searchable = self.searchable;
1546 clone
1547 }
1548
1549 fn new(
1550 mode: EditorMode,
1551 buffer: Model<MultiBuffer>,
1552 project: Option<Model<Project>>,
1553 cx: &mut ViewContext<Self>,
1554 ) -> Self {
1555 let style = cx.text_style();
1556 let font_size = style.font_size.to_pixels(cx.rem_size());
1557 let display_map = cx.new_model(|cx| {
1558 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1559 });
1560
1561 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1562
1563 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1564
1565 let soft_wrap_mode_override =
1566 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1567
1568 let mut project_subscriptions = Vec::new();
1569 if mode == EditorMode::Full {
1570 if let Some(project) = project.as_ref() {
1571 if buffer.read(cx).is_singleton() {
1572 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1573 cx.emit(EditorEvent::TitleChanged);
1574 }));
1575 }
1576 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1577 if let project::Event::RefreshInlayHints = event {
1578 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1579 };
1580 }));
1581 }
1582 }
1583
1584 let inlay_hint_settings = inlay_hint_settings(
1585 selections.newest_anchor().head(),
1586 &buffer.read(cx).snapshot(cx),
1587 cx,
1588 );
1589
1590 let focus_handle = cx.focus_handle();
1591 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1592 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1593
1594 let mut this = Self {
1595 focus_handle,
1596 buffer: buffer.clone(),
1597 display_map: display_map.clone(),
1598 selections,
1599 scroll_manager: ScrollManager::new(cx),
1600 columnar_selection_tail: None,
1601 add_selections_state: None,
1602 select_next_state: None,
1603 select_prev_state: None,
1604 selection_history: Default::default(),
1605 autoclose_regions: Default::default(),
1606 snippet_stack: Default::default(),
1607 select_larger_syntax_node_stack: Vec::new(),
1608 ime_transaction: Default::default(),
1609 active_diagnostics: None,
1610 soft_wrap_mode_override,
1611 completion_provider: project.clone().map(|project| Box::new(project) as _),
1612 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1613 project,
1614 blink_manager: blink_manager.clone(),
1615 show_local_selections: true,
1616 mode,
1617 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1618 show_gutter: mode == EditorMode::Full,
1619 show_wrap_guides: None,
1620 placeholder_text: None,
1621 highlight_order: 0,
1622 highlighted_rows: HashMap::default(),
1623 background_highlights: Default::default(),
1624 scrollbar_marker_state: ScrollbarMarkerState::default(),
1625 nav_history: None,
1626 context_menu: RwLock::new(None),
1627 mouse_context_menu: None,
1628 completion_tasks: Default::default(),
1629 find_all_references_task_sources: Vec::new(),
1630 next_completion_id: 0,
1631 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1632 next_inlay_id: 0,
1633 available_code_actions: Default::default(),
1634 code_actions_task: Default::default(),
1635 document_highlights_task: Default::default(),
1636 pending_rename: Default::default(),
1637 searchable: true,
1638 cursor_shape: Default::default(),
1639 autoindent_mode: Some(AutoindentMode::EachLine),
1640 collapse_matches: false,
1641 workspace: None,
1642 keymap_context_layers: Default::default(),
1643 input_enabled: true,
1644 use_modal_editing: mode == EditorMode::Full,
1645 read_only: false,
1646 use_autoclose: true,
1647 auto_replace_emoji_shortcode: false,
1648 leader_peer_id: None,
1649 remote_id: None,
1650 hover_state: Default::default(),
1651 hovered_link_state: Default::default(),
1652 inline_completion_provider: None,
1653 active_inline_completion: None,
1654 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1655 expanded_hunks: ExpandedHunks::default(),
1656 gutter_hovered: false,
1657 pixel_position_of_newest_cursor: None,
1658 last_bounds: None,
1659 expect_bounds_change: None,
1660 gutter_dimensions: GutterDimensions::default(),
1661 style: None,
1662 show_cursor_names: false,
1663 hovered_cursors: Default::default(),
1664 editor_actions: Default::default(),
1665 vim_replace_map: Default::default(),
1666 show_inline_completions: mode == EditorMode::Full,
1667 custom_context_menu: None,
1668 show_git_blame_gutter: false,
1669 show_git_blame_inline: false,
1670 show_git_blame_inline_delay_task: None,
1671 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1672 blame: None,
1673 blame_subscription: None,
1674 tasks: Default::default(),
1675 _subscriptions: vec![
1676 cx.observe(&buffer, Self::on_buffer_changed),
1677 cx.subscribe(&buffer, Self::on_buffer_event),
1678 cx.observe(&display_map, Self::on_display_map_changed),
1679 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1680 cx.observe_global::<SettingsStore>(Self::settings_changed),
1681 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1682 cx.observe_window_activation(|editor, cx| {
1683 let active = cx.is_window_active();
1684 editor.blink_manager.update(cx, |blink_manager, cx| {
1685 if active {
1686 blink_manager.enable(cx);
1687 } else {
1688 blink_manager.show_cursor(cx);
1689 blink_manager.disable(cx);
1690 }
1691 });
1692 }),
1693 ],
1694 tasks_update_task: None,
1695 };
1696 this.tasks_update_task = Some(this.refresh_runnables(cx));
1697 this._subscriptions.extend(project_subscriptions);
1698
1699 this.end_selection(cx);
1700 this.scroll_manager.show_scrollbar(cx);
1701
1702 if mode == EditorMode::Full {
1703 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1704 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1705
1706 if this.git_blame_inline_enabled {
1707 this.git_blame_inline_enabled = true;
1708 this.start_git_blame_inline(false, cx);
1709 }
1710 }
1711
1712 this.report_editor_event("open", None, cx);
1713 this
1714 }
1715
1716 fn key_context(&self, cx: &AppContext) -> KeyContext {
1717 let mut key_context = KeyContext::new_with_defaults();
1718 key_context.add("Editor");
1719 let mode = match self.mode {
1720 EditorMode::SingleLine => "single_line",
1721 EditorMode::AutoHeight { .. } => "auto_height",
1722 EditorMode::Full => "full",
1723 };
1724 key_context.set("mode", mode);
1725 if self.pending_rename.is_some() {
1726 key_context.add("renaming");
1727 }
1728 if self.context_menu_visible() {
1729 match self.context_menu.read().as_ref() {
1730 Some(ContextMenu::Completions(_)) => {
1731 key_context.add("menu");
1732 key_context.add("showing_completions")
1733 }
1734 Some(ContextMenu::CodeActions(_)) => {
1735 key_context.add("menu");
1736 key_context.add("showing_code_actions")
1737 }
1738 None => {}
1739 }
1740 }
1741
1742 for layer in self.keymap_context_layers.values() {
1743 key_context.extend(layer);
1744 }
1745
1746 if let Some(extension) = self
1747 .buffer
1748 .read(cx)
1749 .as_singleton()
1750 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1751 {
1752 key_context.set("extension", extension.to_string());
1753 }
1754
1755 if self.has_active_inline_completion(cx) {
1756 key_context.add("copilot_suggestion");
1757 key_context.add("inline_completion");
1758 }
1759
1760 key_context
1761 }
1762
1763 pub fn new_file(
1764 workspace: &mut Workspace,
1765 _: &workspace::NewFile,
1766 cx: &mut ViewContext<Workspace>,
1767 ) {
1768 let project = workspace.project().clone();
1769 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1770
1771 cx.spawn(|workspace, mut cx| async move {
1772 let buffer = create.await?;
1773 workspace.update(&mut cx, |workspace, cx| {
1774 workspace.add_item_to_active_pane(
1775 Box::new(
1776 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1777 ),
1778 None,
1779 cx,
1780 )
1781 })
1782 })
1783 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1784 ErrorCode::RemoteUpgradeRequired => Some(format!(
1785 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1786 e.error_tag("required").unwrap_or("the latest version")
1787 )),
1788 _ => None,
1789 });
1790 }
1791
1792 pub fn new_file_in_direction(
1793 workspace: &mut Workspace,
1794 action: &workspace::NewFileInDirection,
1795 cx: &mut ViewContext<Workspace>,
1796 ) {
1797 let project = workspace.project().clone();
1798 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1799 let direction = action.0;
1800
1801 cx.spawn(|workspace, mut cx| async move {
1802 let buffer = create.await?;
1803 workspace.update(&mut cx, move |workspace, cx| {
1804 workspace.split_item(
1805 direction,
1806 Box::new(
1807 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1808 ),
1809 cx,
1810 )
1811 })?;
1812 anyhow::Ok(())
1813 })
1814 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1815 ErrorCode::RemoteUpgradeRequired => Some(format!(
1816 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1817 e.error_tag("required").unwrap_or("the latest version")
1818 )),
1819 _ => None,
1820 });
1821 }
1822
1823 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1824 self.buffer.read(cx).replica_id()
1825 }
1826
1827 pub fn leader_peer_id(&self) -> Option<PeerId> {
1828 self.leader_peer_id
1829 }
1830
1831 pub fn buffer(&self) -> &Model<MultiBuffer> {
1832 &self.buffer
1833 }
1834
1835 pub fn workspace(&self) -> Option<View<Workspace>> {
1836 self.workspace.as_ref()?.0.upgrade()
1837 }
1838
1839 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1840 self.buffer().read(cx).title(cx)
1841 }
1842
1843 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1844 EditorSnapshot {
1845 mode: self.mode,
1846 show_gutter: self.show_gutter,
1847 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1848 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1849 scroll_anchor: self.scroll_manager.anchor(),
1850 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1851 placeholder_text: self.placeholder_text.clone(),
1852 is_focused: self.focus_handle.is_focused(cx),
1853 }
1854 }
1855
1856 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1857 self.buffer.read(cx).language_at(point, cx)
1858 }
1859
1860 pub fn file_at<T: ToOffset>(
1861 &self,
1862 point: T,
1863 cx: &AppContext,
1864 ) -> Option<Arc<dyn language::File>> {
1865 self.buffer.read(cx).read(cx).file_at(point).cloned()
1866 }
1867
1868 pub fn active_excerpt(
1869 &self,
1870 cx: &AppContext,
1871 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1872 self.buffer
1873 .read(cx)
1874 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1875 }
1876
1877 pub fn mode(&self) -> EditorMode {
1878 self.mode
1879 }
1880
1881 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1882 self.collaboration_hub.as_deref()
1883 }
1884
1885 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1886 self.collaboration_hub = Some(hub);
1887 }
1888
1889 pub fn set_custom_context_menu(
1890 &mut self,
1891 f: impl 'static
1892 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1893 ) {
1894 self.custom_context_menu = Some(Box::new(f))
1895 }
1896
1897 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1898 self.completion_provider = Some(hub);
1899 }
1900
1901 pub fn set_inline_completion_provider<T>(
1902 &mut self,
1903 provider: Option<Model<T>>,
1904 cx: &mut ViewContext<Self>,
1905 ) where
1906 T: InlineCompletionProvider,
1907 {
1908 self.inline_completion_provider =
1909 provider.map(|provider| RegisteredInlineCompletionProvider {
1910 _subscription: cx.observe(&provider, |this, _, cx| {
1911 if this.focus_handle.is_focused(cx) {
1912 this.update_visible_inline_completion(cx);
1913 }
1914 }),
1915 provider: Arc::new(provider),
1916 });
1917 self.refresh_inline_completion(false, cx);
1918 }
1919
1920 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1921 self.placeholder_text.as_deref()
1922 }
1923
1924 pub fn set_placeholder_text(
1925 &mut self,
1926 placeholder_text: impl Into<Arc<str>>,
1927 cx: &mut ViewContext<Self>,
1928 ) {
1929 let placeholder_text = Some(placeholder_text.into());
1930 if self.placeholder_text != placeholder_text {
1931 self.placeholder_text = placeholder_text;
1932 cx.notify();
1933 }
1934 }
1935
1936 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1937 self.cursor_shape = cursor_shape;
1938 cx.notify();
1939 }
1940
1941 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1942 self.collapse_matches = collapse_matches;
1943 }
1944
1945 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1946 if self.collapse_matches {
1947 return range.start..range.start;
1948 }
1949 range.clone()
1950 }
1951
1952 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1953 if self.display_map.read(cx).clip_at_line_ends != clip {
1954 self.display_map
1955 .update(cx, |map, _| map.clip_at_line_ends = clip);
1956 }
1957 }
1958
1959 pub fn set_keymap_context_layer<Tag: 'static>(
1960 &mut self,
1961 context: KeyContext,
1962 cx: &mut ViewContext<Self>,
1963 ) {
1964 self.keymap_context_layers
1965 .insert(TypeId::of::<Tag>(), context);
1966 cx.notify();
1967 }
1968
1969 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1970 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1971 cx.notify();
1972 }
1973
1974 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1975 self.input_enabled = input_enabled;
1976 }
1977
1978 pub fn set_autoindent(&mut self, autoindent: bool) {
1979 if autoindent {
1980 self.autoindent_mode = Some(AutoindentMode::EachLine);
1981 } else {
1982 self.autoindent_mode = None;
1983 }
1984 }
1985
1986 pub fn read_only(&self, cx: &AppContext) -> bool {
1987 self.read_only || self.buffer.read(cx).read_only()
1988 }
1989
1990 pub fn set_read_only(&mut self, read_only: bool) {
1991 self.read_only = read_only;
1992 }
1993
1994 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1995 self.use_autoclose = autoclose;
1996 }
1997
1998 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1999 self.auto_replace_emoji_shortcode = auto_replace;
2000 }
2001
2002 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2003 self.show_inline_completions = show_inline_completions;
2004 }
2005
2006 pub fn set_use_modal_editing(&mut self, to: bool) {
2007 self.use_modal_editing = to;
2008 }
2009
2010 pub fn use_modal_editing(&self) -> bool {
2011 self.use_modal_editing
2012 }
2013
2014 fn selections_did_change(
2015 &mut self,
2016 local: bool,
2017 old_cursor_position: &Anchor,
2018 cx: &mut ViewContext<Self>,
2019 ) {
2020 // Copy selections to primary selection buffer
2021 #[cfg(target_os = "linux")]
2022 if local {
2023 let selections = self.selections.all::<usize>(cx);
2024 let buffer_handle = self.buffer.read(cx).read(cx);
2025
2026 let mut text = String::new();
2027 for (index, selection) in selections.iter().enumerate() {
2028 let text_for_selection = buffer_handle
2029 .text_for_range(selection.start..selection.end)
2030 .collect::<String>();
2031
2032 text.push_str(&text_for_selection);
2033 if index != selections.len() - 1 {
2034 text.push('\n');
2035 }
2036 }
2037
2038 if !text.is_empty() {
2039 cx.write_to_primary(ClipboardItem::new(text));
2040 }
2041 }
2042
2043 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2044 self.buffer.update(cx, |buffer, cx| {
2045 buffer.set_active_selections(
2046 &self.selections.disjoint_anchors(),
2047 self.selections.line_mode,
2048 self.cursor_shape,
2049 cx,
2050 )
2051 });
2052 }
2053
2054 let display_map = self
2055 .display_map
2056 .update(cx, |display_map, cx| display_map.snapshot(cx));
2057 let buffer = &display_map.buffer_snapshot;
2058 self.add_selections_state = None;
2059 self.select_next_state = None;
2060 self.select_prev_state = None;
2061 self.select_larger_syntax_node_stack.clear();
2062 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2063 self.snippet_stack
2064 .invalidate(&self.selections.disjoint_anchors(), buffer);
2065 self.take_rename(false, cx);
2066
2067 let new_cursor_position = self.selections.newest_anchor().head();
2068
2069 self.push_to_nav_history(
2070 *old_cursor_position,
2071 Some(new_cursor_position.to_point(buffer)),
2072 cx,
2073 );
2074
2075 if local {
2076 let new_cursor_position = self.selections.newest_anchor().head();
2077 let mut context_menu = self.context_menu.write();
2078 let completion_menu = match context_menu.as_ref() {
2079 Some(ContextMenu::Completions(menu)) => Some(menu),
2080
2081 _ => {
2082 *context_menu = None;
2083 None
2084 }
2085 };
2086
2087 if let Some(completion_menu) = completion_menu {
2088 let cursor_position = new_cursor_position.to_offset(buffer);
2089 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2090 if kind == Some(CharKind::Word)
2091 && word_range.to_inclusive().contains(&cursor_position)
2092 {
2093 let mut completion_menu = completion_menu.clone();
2094 drop(context_menu);
2095
2096 let query = Self::completion_query(buffer, cursor_position);
2097 cx.spawn(move |this, mut cx| async move {
2098 completion_menu
2099 .filter(query.as_deref(), cx.background_executor().clone())
2100 .await;
2101
2102 this.update(&mut cx, |this, cx| {
2103 let mut context_menu = this.context_menu.write();
2104 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2105 return;
2106 };
2107
2108 if menu.id > completion_menu.id {
2109 return;
2110 }
2111
2112 *context_menu = Some(ContextMenu::Completions(completion_menu));
2113 drop(context_menu);
2114 cx.notify();
2115 })
2116 })
2117 .detach();
2118
2119 self.show_completions(&ShowCompletions, cx);
2120 } else {
2121 drop(context_menu);
2122 self.hide_context_menu(cx);
2123 }
2124 } else {
2125 drop(context_menu);
2126 }
2127
2128 hide_hover(self, cx);
2129
2130 if old_cursor_position.to_display_point(&display_map).row()
2131 != new_cursor_position.to_display_point(&display_map).row()
2132 {
2133 self.available_code_actions.take();
2134 }
2135 self.refresh_code_actions(cx);
2136 self.refresh_document_highlights(cx);
2137 refresh_matching_bracket_highlights(self, cx);
2138 self.discard_inline_completion(cx);
2139 if self.git_blame_inline_enabled {
2140 self.start_inline_blame_timer(cx);
2141 }
2142 }
2143
2144 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2145 cx.emit(EditorEvent::SelectionsChanged { local });
2146
2147 if self.selections.disjoint_anchors().len() == 1 {
2148 cx.emit(SearchEvent::ActiveMatchChanged)
2149 }
2150
2151 cx.notify();
2152 }
2153
2154 pub fn change_selections<R>(
2155 &mut self,
2156 autoscroll: Option<Autoscroll>,
2157 cx: &mut ViewContext<Self>,
2158 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2159 ) -> R {
2160 let old_cursor_position = self.selections.newest_anchor().head();
2161 self.push_to_selection_history();
2162
2163 let (changed, result) = self.selections.change_with(cx, change);
2164
2165 if changed {
2166 if let Some(autoscroll) = autoscroll {
2167 self.request_autoscroll(autoscroll, cx);
2168 }
2169 self.selections_did_change(true, &old_cursor_position, cx);
2170 }
2171
2172 result
2173 }
2174
2175 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2176 where
2177 I: IntoIterator<Item = (Range<S>, T)>,
2178 S: ToOffset,
2179 T: Into<Arc<str>>,
2180 {
2181 if self.read_only(cx) {
2182 return;
2183 }
2184
2185 self.buffer
2186 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2187 }
2188
2189 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2190 where
2191 I: IntoIterator<Item = (Range<S>, T)>,
2192 S: ToOffset,
2193 T: Into<Arc<str>>,
2194 {
2195 if self.read_only(cx) {
2196 return;
2197 }
2198
2199 self.buffer.update(cx, |buffer, cx| {
2200 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2201 });
2202 }
2203
2204 pub fn edit_with_block_indent<I, S, T>(
2205 &mut self,
2206 edits: I,
2207 original_indent_columns: Vec<u32>,
2208 cx: &mut ViewContext<Self>,
2209 ) where
2210 I: IntoIterator<Item = (Range<S>, T)>,
2211 S: ToOffset,
2212 T: Into<Arc<str>>,
2213 {
2214 if self.read_only(cx) {
2215 return;
2216 }
2217
2218 self.buffer.update(cx, |buffer, cx| {
2219 buffer.edit(
2220 edits,
2221 Some(AutoindentMode::Block {
2222 original_indent_columns,
2223 }),
2224 cx,
2225 )
2226 });
2227 }
2228
2229 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2230 self.hide_context_menu(cx);
2231
2232 match phase {
2233 SelectPhase::Begin {
2234 position,
2235 add,
2236 click_count,
2237 } => self.begin_selection(position, add, click_count, cx),
2238 SelectPhase::BeginColumnar {
2239 position,
2240 goal_column,
2241 } => self.begin_columnar_selection(position, goal_column, cx),
2242 SelectPhase::Extend {
2243 position,
2244 click_count,
2245 } => self.extend_selection(position, click_count, cx),
2246 SelectPhase::Update {
2247 position,
2248 goal_column,
2249 scroll_delta,
2250 } => self.update_selection(position, goal_column, scroll_delta, cx),
2251 SelectPhase::End => self.end_selection(cx),
2252 }
2253 }
2254
2255 fn extend_selection(
2256 &mut self,
2257 position: DisplayPoint,
2258 click_count: usize,
2259 cx: &mut ViewContext<Self>,
2260 ) {
2261 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2262 let tail = self.selections.newest::<usize>(cx).tail();
2263 self.begin_selection(position, false, click_count, cx);
2264
2265 let position = position.to_offset(&display_map, Bias::Left);
2266 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2267
2268 let mut pending_selection = self
2269 .selections
2270 .pending_anchor()
2271 .expect("extend_selection not called with pending selection");
2272 if position >= tail {
2273 pending_selection.start = tail_anchor;
2274 } else {
2275 pending_selection.end = tail_anchor;
2276 pending_selection.reversed = true;
2277 }
2278
2279 let mut pending_mode = self.selections.pending_mode().unwrap();
2280 match &mut pending_mode {
2281 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2282 _ => {}
2283 }
2284
2285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2286 s.set_pending(pending_selection, pending_mode)
2287 });
2288 }
2289
2290 fn begin_selection(
2291 &mut self,
2292 position: DisplayPoint,
2293 add: bool,
2294 click_count: usize,
2295 cx: &mut ViewContext<Self>,
2296 ) {
2297 if !self.focus_handle.is_focused(cx) {
2298 cx.focus(&self.focus_handle);
2299 }
2300
2301 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2302 let buffer = &display_map.buffer_snapshot;
2303 let newest_selection = self.selections.newest_anchor().clone();
2304 let position = display_map.clip_point(position, Bias::Left);
2305
2306 let start;
2307 let end;
2308 let mode;
2309 let auto_scroll;
2310 match click_count {
2311 1 => {
2312 start = buffer.anchor_before(position.to_point(&display_map));
2313 end = start;
2314 mode = SelectMode::Character;
2315 auto_scroll = true;
2316 }
2317 2 => {
2318 let range = movement::surrounding_word(&display_map, position);
2319 start = buffer.anchor_before(range.start.to_point(&display_map));
2320 end = buffer.anchor_before(range.end.to_point(&display_map));
2321 mode = SelectMode::Word(start..end);
2322 auto_scroll = true;
2323 }
2324 3 => {
2325 let position = display_map
2326 .clip_point(position, Bias::Left)
2327 .to_point(&display_map);
2328 let line_start = display_map.prev_line_boundary(position).0;
2329 let next_line_start = buffer.clip_point(
2330 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2331 Bias::Left,
2332 );
2333 start = buffer.anchor_before(line_start);
2334 end = buffer.anchor_before(next_line_start);
2335 mode = SelectMode::Line(start..end);
2336 auto_scroll = true;
2337 }
2338 _ => {
2339 start = buffer.anchor_before(0);
2340 end = buffer.anchor_before(buffer.len());
2341 mode = SelectMode::All;
2342 auto_scroll = false;
2343 }
2344 }
2345
2346 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2347 if !add {
2348 s.clear_disjoint();
2349 } else if click_count > 1 {
2350 s.delete(newest_selection.id)
2351 }
2352
2353 s.set_pending_anchor_range(start..end, mode);
2354 });
2355 }
2356
2357 fn begin_columnar_selection(
2358 &mut self,
2359 position: DisplayPoint,
2360 goal_column: u32,
2361 cx: &mut ViewContext<Self>,
2362 ) {
2363 if !self.focus_handle.is_focused(cx) {
2364 cx.focus(&self.focus_handle);
2365 }
2366
2367 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2368 let tail = self.selections.newest::<Point>(cx).tail();
2369 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2370
2371 self.select_columns(
2372 tail.to_display_point(&display_map),
2373 position,
2374 goal_column,
2375 &display_map,
2376 cx,
2377 );
2378 }
2379
2380 fn update_selection(
2381 &mut self,
2382 position: DisplayPoint,
2383 goal_column: u32,
2384 scroll_delta: gpui::Point<f32>,
2385 cx: &mut ViewContext<Self>,
2386 ) {
2387 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2388
2389 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2390 let tail = tail.to_display_point(&display_map);
2391 self.select_columns(tail, position, goal_column, &display_map, cx);
2392 } else if let Some(mut pending) = self.selections.pending_anchor() {
2393 let buffer = self.buffer.read(cx).snapshot(cx);
2394 let head;
2395 let tail;
2396 let mode = self.selections.pending_mode().unwrap();
2397 match &mode {
2398 SelectMode::Character => {
2399 head = position.to_point(&display_map);
2400 tail = pending.tail().to_point(&buffer);
2401 }
2402 SelectMode::Word(original_range) => {
2403 let original_display_range = original_range.start.to_display_point(&display_map)
2404 ..original_range.end.to_display_point(&display_map);
2405 let original_buffer_range = original_display_range.start.to_point(&display_map)
2406 ..original_display_range.end.to_point(&display_map);
2407 if movement::is_inside_word(&display_map, position)
2408 || original_display_range.contains(&position)
2409 {
2410 let word_range = movement::surrounding_word(&display_map, position);
2411 if word_range.start < original_display_range.start {
2412 head = word_range.start.to_point(&display_map);
2413 } else {
2414 head = word_range.end.to_point(&display_map);
2415 }
2416 } else {
2417 head = position.to_point(&display_map);
2418 }
2419
2420 if head <= original_buffer_range.start {
2421 tail = original_buffer_range.end;
2422 } else {
2423 tail = original_buffer_range.start;
2424 }
2425 }
2426 SelectMode::Line(original_range) => {
2427 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2428
2429 let position = display_map
2430 .clip_point(position, Bias::Left)
2431 .to_point(&display_map);
2432 let line_start = display_map.prev_line_boundary(position).0;
2433 let next_line_start = buffer.clip_point(
2434 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2435 Bias::Left,
2436 );
2437
2438 if line_start < original_range.start {
2439 head = line_start
2440 } else {
2441 head = next_line_start
2442 }
2443
2444 if head <= original_range.start {
2445 tail = original_range.end;
2446 } else {
2447 tail = original_range.start;
2448 }
2449 }
2450 SelectMode::All => {
2451 return;
2452 }
2453 };
2454
2455 if head < tail {
2456 pending.start = buffer.anchor_before(head);
2457 pending.end = buffer.anchor_before(tail);
2458 pending.reversed = true;
2459 } else {
2460 pending.start = buffer.anchor_before(tail);
2461 pending.end = buffer.anchor_before(head);
2462 pending.reversed = false;
2463 }
2464
2465 self.change_selections(None, cx, |s| {
2466 s.set_pending(pending, mode);
2467 });
2468 } else {
2469 log::error!("update_selection dispatched with no pending selection");
2470 return;
2471 }
2472
2473 self.apply_scroll_delta(scroll_delta, cx);
2474 cx.notify();
2475 }
2476
2477 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2478 self.columnar_selection_tail.take();
2479 if self.selections.pending_anchor().is_some() {
2480 let selections = self.selections.all::<usize>(cx);
2481 self.change_selections(None, cx, |s| {
2482 s.select(selections);
2483 s.clear_pending();
2484 });
2485 }
2486 }
2487
2488 fn select_columns(
2489 &mut self,
2490 tail: DisplayPoint,
2491 head: DisplayPoint,
2492 goal_column: u32,
2493 display_map: &DisplaySnapshot,
2494 cx: &mut ViewContext<Self>,
2495 ) {
2496 let start_row = cmp::min(tail.row(), head.row());
2497 let end_row = cmp::max(tail.row(), head.row());
2498 let start_column = cmp::min(tail.column(), goal_column);
2499 let end_column = cmp::max(tail.column(), goal_column);
2500 let reversed = start_column < tail.column();
2501
2502 let selection_ranges = (start_row.0..=end_row.0)
2503 .map(DisplayRow)
2504 .filter_map(|row| {
2505 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2506 let start = display_map
2507 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2508 .to_point(display_map);
2509 let end = display_map
2510 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2511 .to_point(display_map);
2512 if reversed {
2513 Some(end..start)
2514 } else {
2515 Some(start..end)
2516 }
2517 } else {
2518 None
2519 }
2520 })
2521 .collect::<Vec<_>>();
2522
2523 self.change_selections(None, cx, |s| {
2524 s.select_ranges(selection_ranges);
2525 });
2526 cx.notify();
2527 }
2528
2529 pub fn has_pending_nonempty_selection(&self) -> bool {
2530 let pending_nonempty_selection = match self.selections.pending_anchor() {
2531 Some(Selection { start, end, .. }) => start != end,
2532 None => false,
2533 };
2534 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2535 }
2536
2537 pub fn has_pending_selection(&self) -> bool {
2538 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2539 }
2540
2541 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2542 self.clear_expanded_diff_hunks(cx);
2543 if self.dismiss_menus_and_popups(cx) {
2544 return;
2545 }
2546
2547 if self.mode == EditorMode::Full {
2548 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2549 return;
2550 }
2551 }
2552
2553 cx.propagate();
2554 }
2555
2556 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2557 if self.take_rename(false, cx).is_some() {
2558 return true;
2559 }
2560
2561 if hide_hover(self, cx) {
2562 return true;
2563 }
2564
2565 if self.hide_context_menu(cx).is_some() {
2566 return true;
2567 }
2568
2569 if self.discard_inline_completion(cx) {
2570 return true;
2571 }
2572
2573 if self.snippet_stack.pop().is_some() {
2574 return true;
2575 }
2576
2577 if self.mode == EditorMode::Full {
2578 if self.active_diagnostics.is_some() {
2579 self.dismiss_diagnostics(cx);
2580 return true;
2581 }
2582 }
2583
2584 false
2585 }
2586
2587 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2588 let text: Arc<str> = text.into();
2589
2590 if self.read_only(cx) {
2591 return;
2592 }
2593
2594 let selections = self.selections.all_adjusted(cx);
2595 let mut brace_inserted = false;
2596 let mut edits = Vec::new();
2597 let mut new_selections = Vec::with_capacity(selections.len());
2598 let mut new_autoclose_regions = Vec::new();
2599 let snapshot = self.buffer.read(cx).read(cx);
2600
2601 for (selection, autoclose_region) in
2602 self.selections_with_autoclose_regions(selections, &snapshot)
2603 {
2604 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2605 // Determine if the inserted text matches the opening or closing
2606 // bracket of any of this language's bracket pairs.
2607 let mut bracket_pair = None;
2608 let mut is_bracket_pair_start = false;
2609 let mut is_bracket_pair_end = false;
2610 if !text.is_empty() {
2611 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2612 // and they are removing the character that triggered IME popup.
2613 for (pair, enabled) in scope.brackets() {
2614 if !pair.close {
2615 continue;
2616 }
2617
2618 if enabled && pair.start.ends_with(text.as_ref()) {
2619 bracket_pair = Some(pair.clone());
2620 is_bracket_pair_start = true;
2621 break;
2622 }
2623 if pair.end.as_str() == text.as_ref() {
2624 bracket_pair = Some(pair.clone());
2625 is_bracket_pair_end = true;
2626 break;
2627 }
2628 }
2629 }
2630
2631 if let Some(bracket_pair) = bracket_pair {
2632 if selection.is_empty() {
2633 if is_bracket_pair_start {
2634 let prefix_len = bracket_pair.start.len() - text.len();
2635
2636 // If the inserted text is a suffix of an opening bracket and the
2637 // selection is preceded by the rest of the opening bracket, then
2638 // insert the closing bracket.
2639 let following_text_allows_autoclose = snapshot
2640 .chars_at(selection.start)
2641 .next()
2642 .map_or(true, |c| scope.should_autoclose_before(c));
2643 let preceding_text_matches_prefix = prefix_len == 0
2644 || (selection.start.column >= (prefix_len as u32)
2645 && snapshot.contains_str_at(
2646 Point::new(
2647 selection.start.row,
2648 selection.start.column - (prefix_len as u32),
2649 ),
2650 &bracket_pair.start[..prefix_len],
2651 ));
2652 let autoclose = self.use_autoclose
2653 && snapshot.settings_at(selection.start, cx).use_autoclose;
2654 if autoclose
2655 && following_text_allows_autoclose
2656 && preceding_text_matches_prefix
2657 {
2658 let anchor = snapshot.anchor_before(selection.end);
2659 new_selections.push((selection.map(|_| anchor), text.len()));
2660 new_autoclose_regions.push((
2661 anchor,
2662 text.len(),
2663 selection.id,
2664 bracket_pair.clone(),
2665 ));
2666 edits.push((
2667 selection.range(),
2668 format!("{}{}", text, bracket_pair.end).into(),
2669 ));
2670 brace_inserted = true;
2671 continue;
2672 }
2673 }
2674
2675 if let Some(region) = autoclose_region {
2676 // If the selection is followed by an auto-inserted closing bracket,
2677 // then don't insert that closing bracket again; just move the selection
2678 // past the closing bracket.
2679 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2680 && text.as_ref() == region.pair.end.as_str();
2681 if should_skip {
2682 let anchor = snapshot.anchor_after(selection.end);
2683 new_selections
2684 .push((selection.map(|_| anchor), region.pair.end.len()));
2685 continue;
2686 }
2687 }
2688
2689 let always_treat_brackets_as_autoclosed = snapshot
2690 .settings_at(selection.start, cx)
2691 .always_treat_brackets_as_autoclosed;
2692 if always_treat_brackets_as_autoclosed
2693 && is_bracket_pair_end
2694 && snapshot.contains_str_at(selection.end, text.as_ref())
2695 {
2696 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2697 // and the inserted text is a closing bracket and the selection is followed
2698 // by the closing bracket then move the selection past the closing bracket.
2699 let anchor = snapshot.anchor_after(selection.end);
2700 new_selections.push((selection.map(|_| anchor), text.len()));
2701 continue;
2702 }
2703 }
2704 // If an opening bracket is 1 character long and is typed while
2705 // text is selected, then surround that text with the bracket pair.
2706 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2707 edits.push((selection.start..selection.start, text.clone()));
2708 edits.push((
2709 selection.end..selection.end,
2710 bracket_pair.end.as_str().into(),
2711 ));
2712 brace_inserted = true;
2713 new_selections.push((
2714 Selection {
2715 id: selection.id,
2716 start: snapshot.anchor_after(selection.start),
2717 end: snapshot.anchor_before(selection.end),
2718 reversed: selection.reversed,
2719 goal: selection.goal,
2720 },
2721 0,
2722 ));
2723 continue;
2724 }
2725 }
2726 }
2727
2728 if self.auto_replace_emoji_shortcode
2729 && selection.is_empty()
2730 && text.as_ref().ends_with(':')
2731 {
2732 if let Some(possible_emoji_short_code) =
2733 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2734 {
2735 if !possible_emoji_short_code.is_empty() {
2736 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2737 let emoji_shortcode_start = Point::new(
2738 selection.start.row,
2739 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2740 );
2741
2742 // Remove shortcode from buffer
2743 edits.push((
2744 emoji_shortcode_start..selection.start,
2745 "".to_string().into(),
2746 ));
2747 new_selections.push((
2748 Selection {
2749 id: selection.id,
2750 start: snapshot.anchor_after(emoji_shortcode_start),
2751 end: snapshot.anchor_before(selection.start),
2752 reversed: selection.reversed,
2753 goal: selection.goal,
2754 },
2755 0,
2756 ));
2757
2758 // Insert emoji
2759 let selection_start_anchor = snapshot.anchor_after(selection.start);
2760 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2761 edits.push((selection.start..selection.end, emoji.to_string().into()));
2762
2763 continue;
2764 }
2765 }
2766 }
2767 }
2768
2769 // If not handling any auto-close operation, then just replace the selected
2770 // text with the given input and move the selection to the end of the
2771 // newly inserted text.
2772 let anchor = snapshot.anchor_after(selection.end);
2773 new_selections.push((selection.map(|_| anchor), 0));
2774 edits.push((selection.start..selection.end, text.clone()));
2775 }
2776
2777 drop(snapshot);
2778 self.transact(cx, |this, cx| {
2779 this.buffer.update(cx, |buffer, cx| {
2780 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2781 });
2782
2783 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2784 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2785 let snapshot = this.buffer.read(cx).read(cx);
2786 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2787 .zip(new_selection_deltas)
2788 .map(|(selection, delta)| Selection {
2789 id: selection.id,
2790 start: selection.start + delta,
2791 end: selection.end + delta,
2792 reversed: selection.reversed,
2793 goal: SelectionGoal::None,
2794 })
2795 .collect::<Vec<_>>();
2796
2797 let mut i = 0;
2798 for (position, delta, selection_id, pair) in new_autoclose_regions {
2799 let position = position.to_offset(&snapshot) + delta;
2800 let start = snapshot.anchor_before(position);
2801 let end = snapshot.anchor_after(position);
2802 while let Some(existing_state) = this.autoclose_regions.get(i) {
2803 match existing_state.range.start.cmp(&start, &snapshot) {
2804 Ordering::Less => i += 1,
2805 Ordering::Greater => break,
2806 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2807 Ordering::Less => i += 1,
2808 Ordering::Equal => break,
2809 Ordering::Greater => break,
2810 },
2811 }
2812 }
2813 this.autoclose_regions.insert(
2814 i,
2815 AutocloseRegion {
2816 selection_id,
2817 range: start..end,
2818 pair,
2819 },
2820 );
2821 }
2822
2823 drop(snapshot);
2824 let had_active_inline_completion = this.has_active_inline_completion(cx);
2825 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2826
2827 if brace_inserted {
2828 // If we inserted a brace while composing text (i.e. typing `"` on a
2829 // Brazilian keyboard), exit the composing state because most likely
2830 // the user wanted to surround the selection.
2831 this.unmark_text(cx);
2832 } else if EditorSettings::get_global(cx).use_on_type_format {
2833 if let Some(on_type_format_task) =
2834 this.trigger_on_type_formatting(text.to_string(), cx)
2835 {
2836 on_type_format_task.detach_and_log_err(cx);
2837 }
2838 }
2839
2840 let trigger_in_words = !had_active_inline_completion;
2841 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2842 this.refresh_inline_completion(true, cx);
2843 });
2844 }
2845
2846 fn find_possible_emoji_shortcode_at_position(
2847 snapshot: &MultiBufferSnapshot,
2848 position: Point,
2849 ) -> Option<String> {
2850 let mut chars = Vec::new();
2851 let mut found_colon = false;
2852 for char in snapshot.reversed_chars_at(position).take(100) {
2853 // Found a possible emoji shortcode in the middle of the buffer
2854 if found_colon {
2855 if char.is_whitespace() {
2856 chars.reverse();
2857 return Some(chars.iter().collect());
2858 }
2859 // If the previous character is not a whitespace, we are in the middle of a word
2860 // and we only want to complete the shortcode if the word is made up of other emojis
2861 let mut containing_word = String::new();
2862 for ch in snapshot
2863 .reversed_chars_at(position)
2864 .skip(chars.len() + 1)
2865 .take(100)
2866 {
2867 if ch.is_whitespace() {
2868 break;
2869 }
2870 containing_word.push(ch);
2871 }
2872 let containing_word = containing_word.chars().rev().collect::<String>();
2873 if util::word_consists_of_emojis(containing_word.as_str()) {
2874 chars.reverse();
2875 return Some(chars.iter().collect());
2876 }
2877 }
2878
2879 if char.is_whitespace() || !char.is_ascii() {
2880 return None;
2881 }
2882 if char == ':' {
2883 found_colon = true;
2884 } else {
2885 chars.push(char);
2886 }
2887 }
2888 // Found a possible emoji shortcode at the beginning of the buffer
2889 chars.reverse();
2890 Some(chars.iter().collect())
2891 }
2892
2893 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2894 self.transact(cx, |this, cx| {
2895 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2896 let selections = this.selections.all::<usize>(cx);
2897 let multi_buffer = this.buffer.read(cx);
2898 let buffer = multi_buffer.snapshot(cx);
2899 selections
2900 .iter()
2901 .map(|selection| {
2902 let start_point = selection.start.to_point(&buffer);
2903 let mut indent =
2904 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2905 indent.len = cmp::min(indent.len, start_point.column);
2906 let start = selection.start;
2907 let end = selection.end;
2908 let selection_is_empty = start == end;
2909 let language_scope = buffer.language_scope_at(start);
2910 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2911 &language_scope
2912 {
2913 let leading_whitespace_len = buffer
2914 .reversed_chars_at(start)
2915 .take_while(|c| c.is_whitespace() && *c != '\n')
2916 .map(|c| c.len_utf8())
2917 .sum::<usize>();
2918
2919 let trailing_whitespace_len = buffer
2920 .chars_at(end)
2921 .take_while(|c| c.is_whitespace() && *c != '\n')
2922 .map(|c| c.len_utf8())
2923 .sum::<usize>();
2924
2925 let insert_extra_newline =
2926 language.brackets().any(|(pair, enabled)| {
2927 let pair_start = pair.start.trim_end();
2928 let pair_end = pair.end.trim_start();
2929
2930 enabled
2931 && pair.newline
2932 && buffer.contains_str_at(
2933 end + trailing_whitespace_len,
2934 pair_end,
2935 )
2936 && buffer.contains_str_at(
2937 (start - leading_whitespace_len)
2938 .saturating_sub(pair_start.len()),
2939 pair_start,
2940 )
2941 });
2942
2943 // Comment extension on newline is allowed only for cursor selections
2944 let comment_delimiter = maybe!({
2945 if !selection_is_empty {
2946 return None;
2947 }
2948
2949 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2950 return None;
2951 }
2952
2953 let delimiters = language.line_comment_prefixes();
2954 let max_len_of_delimiter =
2955 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2956 let (snapshot, range) =
2957 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2958
2959 let mut index_of_first_non_whitespace = 0;
2960 let comment_candidate = snapshot
2961 .chars_for_range(range)
2962 .skip_while(|c| {
2963 let should_skip = c.is_whitespace();
2964 if should_skip {
2965 index_of_first_non_whitespace += 1;
2966 }
2967 should_skip
2968 })
2969 .take(max_len_of_delimiter)
2970 .collect::<String>();
2971 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2972 comment_candidate.starts_with(comment_prefix.as_ref())
2973 })?;
2974 let cursor_is_placed_after_comment_marker =
2975 index_of_first_non_whitespace + comment_prefix.len()
2976 <= start_point.column as usize;
2977 if cursor_is_placed_after_comment_marker {
2978 Some(comment_prefix.clone())
2979 } else {
2980 None
2981 }
2982 });
2983 (comment_delimiter, insert_extra_newline)
2984 } else {
2985 (None, false)
2986 };
2987
2988 let capacity_for_delimiter = comment_delimiter
2989 .as_deref()
2990 .map(str::len)
2991 .unwrap_or_default();
2992 let mut new_text =
2993 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2994 new_text.push_str("\n");
2995 new_text.extend(indent.chars());
2996 if let Some(delimiter) = &comment_delimiter {
2997 new_text.push_str(&delimiter);
2998 }
2999 if insert_extra_newline {
3000 new_text = new_text.repeat(2);
3001 }
3002
3003 let anchor = buffer.anchor_after(end);
3004 let new_selection = selection.map(|_| anchor);
3005 (
3006 (start..end, new_text),
3007 (insert_extra_newline, new_selection),
3008 )
3009 })
3010 .unzip()
3011 };
3012
3013 this.edit_with_autoindent(edits, cx);
3014 let buffer = this.buffer.read(cx).snapshot(cx);
3015 let new_selections = selection_fixup_info
3016 .into_iter()
3017 .map(|(extra_newline_inserted, new_selection)| {
3018 let mut cursor = new_selection.end.to_point(&buffer);
3019 if extra_newline_inserted {
3020 cursor.row -= 1;
3021 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3022 }
3023 new_selection.map(|_| cursor)
3024 })
3025 .collect();
3026
3027 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3028 this.refresh_inline_completion(true, cx);
3029 });
3030 }
3031
3032 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3033 let buffer = self.buffer.read(cx);
3034 let snapshot = buffer.snapshot(cx);
3035
3036 let mut edits = Vec::new();
3037 let mut rows = Vec::new();
3038
3039 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3040 let cursor = selection.head();
3041 let row = cursor.row;
3042
3043 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3044
3045 let newline = "\n".to_string();
3046 edits.push((start_of_line..start_of_line, newline));
3047
3048 rows.push(row + rows_inserted as u32);
3049 }
3050
3051 self.transact(cx, |editor, cx| {
3052 editor.edit(edits, cx);
3053
3054 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3055 let mut index = 0;
3056 s.move_cursors_with(|map, _, _| {
3057 let row = rows[index];
3058 index += 1;
3059
3060 let point = Point::new(row, 0);
3061 let boundary = map.next_line_boundary(point).1;
3062 let clipped = map.clip_point(boundary, Bias::Left);
3063
3064 (clipped, SelectionGoal::None)
3065 });
3066 });
3067
3068 let mut indent_edits = Vec::new();
3069 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3070 for row in rows {
3071 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3072 for (row, indent) in indents {
3073 if indent.len == 0 {
3074 continue;
3075 }
3076
3077 let text = match indent.kind {
3078 IndentKind::Space => " ".repeat(indent.len as usize),
3079 IndentKind::Tab => "\t".repeat(indent.len as usize),
3080 };
3081 let point = Point::new(row.0, 0);
3082 indent_edits.push((point..point, text));
3083 }
3084 }
3085 editor.edit(indent_edits, cx);
3086 });
3087 }
3088
3089 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3090 let buffer = self.buffer.read(cx);
3091 let snapshot = buffer.snapshot(cx);
3092
3093 let mut edits = Vec::new();
3094 let mut rows = Vec::new();
3095 let mut rows_inserted = 0;
3096
3097 for selection in self.selections.all_adjusted(cx) {
3098 let cursor = selection.head();
3099 let row = cursor.row;
3100
3101 let point = Point::new(row + 1, 0);
3102 let start_of_line = snapshot.clip_point(point, Bias::Left);
3103
3104 let newline = "\n".to_string();
3105 edits.push((start_of_line..start_of_line, newline));
3106
3107 rows_inserted += 1;
3108 rows.push(row + rows_inserted);
3109 }
3110
3111 self.transact(cx, |editor, cx| {
3112 editor.edit(edits, cx);
3113
3114 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3115 let mut index = 0;
3116 s.move_cursors_with(|map, _, _| {
3117 let row = rows[index];
3118 index += 1;
3119
3120 let point = Point::new(row, 0);
3121 let boundary = map.next_line_boundary(point).1;
3122 let clipped = map.clip_point(boundary, Bias::Left);
3123
3124 (clipped, SelectionGoal::None)
3125 });
3126 });
3127
3128 let mut indent_edits = Vec::new();
3129 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3130 for row in rows {
3131 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3132 for (row, indent) in indents {
3133 if indent.len == 0 {
3134 continue;
3135 }
3136
3137 let text = match indent.kind {
3138 IndentKind::Space => " ".repeat(indent.len as usize),
3139 IndentKind::Tab => "\t".repeat(indent.len as usize),
3140 };
3141 let point = Point::new(row.0, 0);
3142 indent_edits.push((point..point, text));
3143 }
3144 }
3145 editor.edit(indent_edits, cx);
3146 });
3147 }
3148
3149 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3150 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3151 original_indent_columns: Vec::new(),
3152 });
3153 self.insert_with_autoindent_mode(text, autoindent, cx);
3154 }
3155
3156 fn insert_with_autoindent_mode(
3157 &mut self,
3158 text: &str,
3159 autoindent_mode: Option<AutoindentMode>,
3160 cx: &mut ViewContext<Self>,
3161 ) {
3162 if self.read_only(cx) {
3163 return;
3164 }
3165
3166 let text: Arc<str> = text.into();
3167 self.transact(cx, |this, cx| {
3168 let old_selections = this.selections.all_adjusted(cx);
3169 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3170 let anchors = {
3171 let snapshot = buffer.read(cx);
3172 old_selections
3173 .iter()
3174 .map(|s| {
3175 let anchor = snapshot.anchor_after(s.head());
3176 s.map(|_| anchor)
3177 })
3178 .collect::<Vec<_>>()
3179 };
3180 buffer.edit(
3181 old_selections
3182 .iter()
3183 .map(|s| (s.start..s.end, text.clone())),
3184 autoindent_mode,
3185 cx,
3186 );
3187 anchors
3188 });
3189
3190 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3191 s.select_anchors(selection_anchors);
3192 })
3193 });
3194 }
3195
3196 fn trigger_completion_on_input(
3197 &mut self,
3198 text: &str,
3199 trigger_in_words: bool,
3200 cx: &mut ViewContext<Self>,
3201 ) {
3202 if !EditorSettings::get_global(cx).show_completions_on_input {
3203 return;
3204 }
3205
3206 let selection = self.selections.newest_anchor();
3207 if self
3208 .buffer
3209 .read(cx)
3210 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3211 {
3212 self.show_completions(&ShowCompletions, cx);
3213 } else {
3214 self.hide_context_menu(cx);
3215 }
3216 }
3217
3218 /// If any empty selections is touching the start of its innermost containing autoclose
3219 /// region, expand it to select the brackets.
3220 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3221 let selections = self.selections.all::<usize>(cx);
3222 let buffer = self.buffer.read(cx).read(cx);
3223 let new_selections = self
3224 .selections_with_autoclose_regions(selections, &buffer)
3225 .map(|(mut selection, region)| {
3226 if !selection.is_empty() {
3227 return selection;
3228 }
3229
3230 if let Some(region) = region {
3231 let mut range = region.range.to_offset(&buffer);
3232 if selection.start == range.start && range.start >= region.pair.start.len() {
3233 range.start -= region.pair.start.len();
3234 if buffer.contains_str_at(range.start, ®ion.pair.start)
3235 && buffer.contains_str_at(range.end, ®ion.pair.end)
3236 {
3237 range.end += region.pair.end.len();
3238 selection.start = range.start;
3239 selection.end = range.end;
3240
3241 return selection;
3242 }
3243 }
3244 }
3245
3246 let always_treat_brackets_as_autoclosed = buffer
3247 .settings_at(selection.start, cx)
3248 .always_treat_brackets_as_autoclosed;
3249
3250 if !always_treat_brackets_as_autoclosed {
3251 return selection;
3252 }
3253
3254 if let Some(scope) = buffer.language_scope_at(selection.start) {
3255 for (pair, enabled) in scope.brackets() {
3256 if !enabled || !pair.close {
3257 continue;
3258 }
3259
3260 if buffer.contains_str_at(selection.start, &pair.end) {
3261 let pair_start_len = pair.start.len();
3262 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3263 {
3264 selection.start -= pair_start_len;
3265 selection.end += pair.end.len();
3266
3267 return selection;
3268 }
3269 }
3270 }
3271 }
3272
3273 selection
3274 })
3275 .collect();
3276
3277 drop(buffer);
3278 self.change_selections(None, cx, |selections| selections.select(new_selections));
3279 }
3280
3281 /// Iterate the given selections, and for each one, find the smallest surrounding
3282 /// autoclose region. This uses the ordering of the selections and the autoclose
3283 /// regions to avoid repeated comparisons.
3284 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3285 &'a self,
3286 selections: impl IntoIterator<Item = Selection<D>>,
3287 buffer: &'a MultiBufferSnapshot,
3288 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3289 let mut i = 0;
3290 let mut regions = self.autoclose_regions.as_slice();
3291 selections.into_iter().map(move |selection| {
3292 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3293
3294 let mut enclosing = None;
3295 while let Some(pair_state) = regions.get(i) {
3296 if pair_state.range.end.to_offset(buffer) < range.start {
3297 regions = ®ions[i + 1..];
3298 i = 0;
3299 } else if pair_state.range.start.to_offset(buffer) > range.end {
3300 break;
3301 } else {
3302 if pair_state.selection_id == selection.id {
3303 enclosing = Some(pair_state);
3304 }
3305 i += 1;
3306 }
3307 }
3308
3309 (selection.clone(), enclosing)
3310 })
3311 }
3312
3313 /// Remove any autoclose regions that no longer contain their selection.
3314 fn invalidate_autoclose_regions(
3315 &mut self,
3316 mut selections: &[Selection<Anchor>],
3317 buffer: &MultiBufferSnapshot,
3318 ) {
3319 self.autoclose_regions.retain(|state| {
3320 let mut i = 0;
3321 while let Some(selection) = selections.get(i) {
3322 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3323 selections = &selections[1..];
3324 continue;
3325 }
3326 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3327 break;
3328 }
3329 if selection.id == state.selection_id {
3330 return true;
3331 } else {
3332 i += 1;
3333 }
3334 }
3335 false
3336 });
3337 }
3338
3339 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3340 let offset = position.to_offset(buffer);
3341 let (word_range, kind) = buffer.surrounding_word(offset);
3342 if offset > word_range.start && kind == Some(CharKind::Word) {
3343 Some(
3344 buffer
3345 .text_for_range(word_range.start..offset)
3346 .collect::<String>(),
3347 )
3348 } else {
3349 None
3350 }
3351 }
3352
3353 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3354 self.refresh_inlay_hints(
3355 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3356 cx,
3357 );
3358 }
3359
3360 pub fn inlay_hints_enabled(&self) -> bool {
3361 self.inlay_hint_cache.enabled
3362 }
3363
3364 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3365 if self.project.is_none() || self.mode != EditorMode::Full {
3366 return;
3367 }
3368
3369 let reason_description = reason.description();
3370 let ignore_debounce = matches!(
3371 reason,
3372 InlayHintRefreshReason::SettingsChange(_)
3373 | InlayHintRefreshReason::Toggle(_)
3374 | InlayHintRefreshReason::ExcerptsRemoved(_)
3375 );
3376 let (invalidate_cache, required_languages) = match reason {
3377 InlayHintRefreshReason::Toggle(enabled) => {
3378 self.inlay_hint_cache.enabled = enabled;
3379 if enabled {
3380 (InvalidationStrategy::RefreshRequested, None)
3381 } else {
3382 self.inlay_hint_cache.clear();
3383 self.splice_inlays(
3384 self.visible_inlay_hints(cx)
3385 .iter()
3386 .map(|inlay| inlay.id)
3387 .collect(),
3388 Vec::new(),
3389 cx,
3390 );
3391 return;
3392 }
3393 }
3394 InlayHintRefreshReason::SettingsChange(new_settings) => {
3395 match self.inlay_hint_cache.update_settings(
3396 &self.buffer,
3397 new_settings,
3398 self.visible_inlay_hints(cx),
3399 cx,
3400 ) {
3401 ControlFlow::Break(Some(InlaySplice {
3402 to_remove,
3403 to_insert,
3404 })) => {
3405 self.splice_inlays(to_remove, to_insert, cx);
3406 return;
3407 }
3408 ControlFlow::Break(None) => return,
3409 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3410 }
3411 }
3412 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3413 if let Some(InlaySplice {
3414 to_remove,
3415 to_insert,
3416 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3417 {
3418 self.splice_inlays(to_remove, to_insert, cx);
3419 }
3420 return;
3421 }
3422 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3423 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3424 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3425 }
3426 InlayHintRefreshReason::RefreshRequested => {
3427 (InvalidationStrategy::RefreshRequested, None)
3428 }
3429 };
3430
3431 if let Some(InlaySplice {
3432 to_remove,
3433 to_insert,
3434 }) = self.inlay_hint_cache.spawn_hint_refresh(
3435 reason_description,
3436 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3437 invalidate_cache,
3438 ignore_debounce,
3439 cx,
3440 ) {
3441 self.splice_inlays(to_remove, to_insert, cx);
3442 }
3443 }
3444
3445 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3446 self.display_map
3447 .read(cx)
3448 .current_inlays()
3449 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3450 .cloned()
3451 .collect()
3452 }
3453
3454 pub fn excerpts_for_inlay_hints_query(
3455 &self,
3456 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3457 cx: &mut ViewContext<Editor>,
3458 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3459 let Some(project) = self.project.as_ref() else {
3460 return HashMap::default();
3461 };
3462 let project = project.read(cx);
3463 let multi_buffer = self.buffer().read(cx);
3464 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3465 let multi_buffer_visible_start = self
3466 .scroll_manager
3467 .anchor()
3468 .anchor
3469 .to_point(&multi_buffer_snapshot);
3470 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3471 multi_buffer_visible_start
3472 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3473 Bias::Left,
3474 );
3475 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3476 multi_buffer
3477 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3478 .into_iter()
3479 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3480 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3481 let buffer = buffer_handle.read(cx);
3482 let buffer_file = project::File::from_dyn(buffer.file())?;
3483 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3484 let worktree_entry = buffer_worktree
3485 .read(cx)
3486 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3487 if worktree_entry.is_ignored {
3488 return None;
3489 }
3490
3491 let language = buffer.language()?;
3492 if let Some(restrict_to_languages) = restrict_to_languages {
3493 if !restrict_to_languages.contains(language) {
3494 return None;
3495 }
3496 }
3497 Some((
3498 excerpt_id,
3499 (
3500 buffer_handle,
3501 buffer.version().clone(),
3502 excerpt_visible_range,
3503 ),
3504 ))
3505 })
3506 .collect()
3507 }
3508
3509 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3510 TextLayoutDetails {
3511 text_system: cx.text_system().clone(),
3512 editor_style: self.style.clone().unwrap(),
3513 rem_size: cx.rem_size(),
3514 scroll_anchor: self.scroll_manager.anchor(),
3515 visible_rows: self.visible_line_count(),
3516 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3517 }
3518 }
3519
3520 fn splice_inlays(
3521 &self,
3522 to_remove: Vec<InlayId>,
3523 to_insert: Vec<Inlay>,
3524 cx: &mut ViewContext<Self>,
3525 ) {
3526 self.display_map.update(cx, |display_map, cx| {
3527 display_map.splice_inlays(to_remove, to_insert, cx);
3528 });
3529 cx.notify();
3530 }
3531
3532 fn trigger_on_type_formatting(
3533 &self,
3534 input: String,
3535 cx: &mut ViewContext<Self>,
3536 ) -> Option<Task<Result<()>>> {
3537 if input.len() != 1 {
3538 return None;
3539 }
3540
3541 let project = self.project.as_ref()?;
3542 let position = self.selections.newest_anchor().head();
3543 let (buffer, buffer_position) = self
3544 .buffer
3545 .read(cx)
3546 .text_anchor_for_position(position, cx)?;
3547
3548 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3549 // hence we do LSP request & edit on host side only — add formats to host's history.
3550 let push_to_lsp_host_history = true;
3551 // If this is not the host, append its history with new edits.
3552 let push_to_client_history = project.read(cx).is_remote();
3553
3554 let on_type_formatting = project.update(cx, |project, cx| {
3555 project.on_type_format(
3556 buffer.clone(),
3557 buffer_position,
3558 input,
3559 push_to_lsp_host_history,
3560 cx,
3561 )
3562 });
3563 Some(cx.spawn(|editor, mut cx| async move {
3564 if let Some(transaction) = on_type_formatting.await? {
3565 if push_to_client_history {
3566 buffer
3567 .update(&mut cx, |buffer, _| {
3568 buffer.push_transaction(transaction, Instant::now());
3569 })
3570 .ok();
3571 }
3572 editor.update(&mut cx, |editor, cx| {
3573 editor.refresh_document_highlights(cx);
3574 })?;
3575 }
3576 Ok(())
3577 }))
3578 }
3579
3580 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3581 if self.pending_rename.is_some() {
3582 return;
3583 }
3584
3585 let Some(provider) = self.completion_provider.as_ref() else {
3586 return;
3587 };
3588
3589 let position = self.selections.newest_anchor().head();
3590 let (buffer, buffer_position) =
3591 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3592 output
3593 } else {
3594 return;
3595 };
3596
3597 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3598 let completions = provider.completions(&buffer, buffer_position, cx);
3599
3600 let id = post_inc(&mut self.next_completion_id);
3601 let task = cx.spawn(|this, mut cx| {
3602 async move {
3603 let completions = completions.await.log_err();
3604 let menu = if let Some(completions) = completions {
3605 let mut menu = CompletionsMenu {
3606 id,
3607 initial_position: position,
3608 match_candidates: completions
3609 .iter()
3610 .enumerate()
3611 .map(|(id, completion)| {
3612 StringMatchCandidate::new(
3613 id,
3614 completion.label.text[completion.label.filter_range.clone()]
3615 .into(),
3616 )
3617 })
3618 .collect(),
3619 buffer: buffer.clone(),
3620 completions: Arc::new(RwLock::new(completions.into())),
3621 matches: Vec::new().into(),
3622 selected_item: 0,
3623 scroll_handle: UniformListScrollHandle::new(),
3624 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3625 DebouncedDelay::new(),
3626 )),
3627 };
3628 menu.filter(query.as_deref(), cx.background_executor().clone())
3629 .await;
3630
3631 if menu.matches.is_empty() {
3632 None
3633 } else {
3634 this.update(&mut cx, |editor, cx| {
3635 let completions = menu.completions.clone();
3636 let matches = menu.matches.clone();
3637
3638 let delay_ms = EditorSettings::get_global(cx)
3639 .completion_documentation_secondary_query_debounce;
3640 let delay = Duration::from_millis(delay_ms);
3641
3642 editor
3643 .completion_documentation_pre_resolve_debounce
3644 .fire_new(delay, cx, |editor, cx| {
3645 CompletionsMenu::pre_resolve_completion_documentation(
3646 buffer,
3647 completions,
3648 matches,
3649 editor,
3650 cx,
3651 )
3652 });
3653 })
3654 .ok();
3655 Some(menu)
3656 }
3657 } else {
3658 None
3659 };
3660
3661 this.update(&mut cx, |this, cx| {
3662 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3663
3664 let mut context_menu = this.context_menu.write();
3665 match context_menu.as_ref() {
3666 None => {}
3667
3668 Some(ContextMenu::Completions(prev_menu)) => {
3669 if prev_menu.id > id {
3670 return;
3671 }
3672 }
3673
3674 _ => return,
3675 }
3676
3677 if this.focus_handle.is_focused(cx) && menu.is_some() {
3678 let menu = menu.unwrap();
3679 *context_menu = Some(ContextMenu::Completions(menu));
3680 drop(context_menu);
3681 this.discard_inline_completion(cx);
3682 cx.notify();
3683 } else if this.completion_tasks.len() <= 1 {
3684 // If there are no more completion tasks and the last menu was
3685 // empty, we should hide it. If it was already hidden, we should
3686 // also show the copilot completion when available.
3687 drop(context_menu);
3688 if this.hide_context_menu(cx).is_none() {
3689 this.update_visible_inline_completion(cx);
3690 }
3691 }
3692 })?;
3693
3694 Ok::<_, anyhow::Error>(())
3695 }
3696 .log_err()
3697 });
3698
3699 self.completion_tasks.push((id, task));
3700 }
3701
3702 pub fn confirm_completion(
3703 &mut self,
3704 action: &ConfirmCompletion,
3705 cx: &mut ViewContext<Self>,
3706 ) -> Option<Task<Result<()>>> {
3707 use language::ToOffset as _;
3708
3709 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3710 menu
3711 } else {
3712 return None;
3713 };
3714
3715 let mat = completions_menu
3716 .matches
3717 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3718 let buffer_handle = completions_menu.buffer;
3719 let completions = completions_menu.completions.read();
3720 let completion = completions.get(mat.candidate_id)?;
3721 cx.stop_propagation();
3722
3723 let snippet;
3724 let text;
3725 if completion.is_snippet() {
3726 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3727 text = snippet.as_ref().unwrap().text.clone();
3728 } else {
3729 snippet = None;
3730 text = completion.new_text.clone();
3731 };
3732 let selections = self.selections.all::<usize>(cx);
3733 let buffer = buffer_handle.read(cx);
3734 let old_range = completion.old_range.to_offset(buffer);
3735 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3736
3737 let newest_selection = self.selections.newest_anchor();
3738 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3739 return None;
3740 }
3741
3742 let lookbehind = newest_selection
3743 .start
3744 .text_anchor
3745 .to_offset(buffer)
3746 .saturating_sub(old_range.start);
3747 let lookahead = old_range
3748 .end
3749 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3750 let mut common_prefix_len = old_text
3751 .bytes()
3752 .zip(text.bytes())
3753 .take_while(|(a, b)| a == b)
3754 .count();
3755
3756 let snapshot = self.buffer.read(cx).snapshot(cx);
3757 let mut range_to_replace: Option<Range<isize>> = None;
3758 let mut ranges = Vec::new();
3759 for selection in &selections {
3760 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3761 let start = selection.start.saturating_sub(lookbehind);
3762 let end = selection.end + lookahead;
3763 if selection.id == newest_selection.id {
3764 range_to_replace = Some(
3765 ((start + common_prefix_len) as isize - selection.start as isize)
3766 ..(end as isize - selection.start as isize),
3767 );
3768 }
3769 ranges.push(start + common_prefix_len..end);
3770 } else {
3771 common_prefix_len = 0;
3772 ranges.clear();
3773 ranges.extend(selections.iter().map(|s| {
3774 if s.id == newest_selection.id {
3775 range_to_replace = Some(
3776 old_range.start.to_offset_utf16(&snapshot).0 as isize
3777 - selection.start as isize
3778 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3779 - selection.start as isize,
3780 );
3781 old_range.clone()
3782 } else {
3783 s.start..s.end
3784 }
3785 }));
3786 break;
3787 }
3788 }
3789 let text = &text[common_prefix_len..];
3790
3791 cx.emit(EditorEvent::InputHandled {
3792 utf16_range_to_replace: range_to_replace,
3793 text: text.into(),
3794 });
3795
3796 self.transact(cx, |this, cx| {
3797 if let Some(mut snippet) = snippet {
3798 snippet.text = text.to_string();
3799 for tabstop in snippet.tabstops.iter_mut().flatten() {
3800 tabstop.start -= common_prefix_len as isize;
3801 tabstop.end -= common_prefix_len as isize;
3802 }
3803
3804 this.insert_snippet(&ranges, snippet, cx).log_err();
3805 } else {
3806 this.buffer.update(cx, |buffer, cx| {
3807 buffer.edit(
3808 ranges.iter().map(|range| (range.clone(), text)),
3809 this.autoindent_mode.clone(),
3810 cx,
3811 );
3812 });
3813 }
3814
3815 this.refresh_inline_completion(true, cx);
3816 });
3817
3818 let provider = self.completion_provider.as_ref()?;
3819 let apply_edits = provider.apply_additional_edits_for_completion(
3820 buffer_handle,
3821 completion.clone(),
3822 true,
3823 cx,
3824 );
3825 Some(cx.foreground_executor().spawn(async move {
3826 apply_edits.await?;
3827 Ok(())
3828 }))
3829 }
3830
3831 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3832 let mut context_menu = self.context_menu.write();
3833 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3834 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3835 // Toggle if we're selecting the same one
3836 *context_menu = None;
3837 cx.notify();
3838 return;
3839 } else {
3840 // Otherwise, clear it and start a new one
3841 *context_menu = None;
3842 cx.notify();
3843 }
3844 }
3845 drop(context_menu);
3846 let snapshot = self.snapshot(cx);
3847 let deployed_from_indicator = action.deployed_from_indicator;
3848 let mut task = self.code_actions_task.take();
3849 let action = action.clone();
3850 cx.spawn(|this, mut cx| async move {
3851 while let Some(prev_task) = task {
3852 prev_task.await;
3853 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3854 }
3855
3856 let spawned_test_task = this.update(&mut cx, |this, cx| {
3857 if this.focus_handle.is_focused(cx) {
3858 let multibuffer_point = action
3859 .deployed_from_indicator
3860 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3861 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head());
3862 let (buffer, buffer_row) = snapshot
3863 .buffer_snapshot
3864 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3865 .and_then(|(buffer_snapshot, range)| {
3866 this.buffer
3867 .read(cx)
3868 .buffer(buffer_snapshot.remote_id())
3869 .map(|buffer| (buffer, range.start.row))
3870 })?;
3871 let (_, code_actions) = this
3872 .available_code_actions
3873 .clone()
3874 .and_then(|(location, code_actions)| {
3875 let snapshot = location.buffer.read(cx).snapshot();
3876 let point_range = location.range.to_point(&snapshot);
3877 let point_range = point_range.start.row..=point_range.end.row;
3878 if point_range.contains(&buffer_row) {
3879 Some((location, code_actions))
3880 } else {
3881 None
3882 }
3883 })
3884 .unzip();
3885 let buffer_id = buffer.read(cx).remote_id();
3886 let tasks = this
3887 .tasks
3888 .get(&(buffer_id, buffer_row))
3889 .map(|t| Arc::new(t.to_owned()));
3890 if tasks.is_none() && code_actions.is_none() {
3891 return None;
3892 }
3893
3894 this.completion_tasks.clear();
3895 this.discard_inline_completion(cx);
3896 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3897 |(tasks, (workspace, _))| {
3898 let position = Point::new(buffer_row, tasks.1.column);
3899 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3900 let location = Location {
3901 buffer: buffer.clone(),
3902 range: range_start..range_start,
3903 };
3904 workspace
3905 .update(cx, |workspace, cx| {
3906 tasks::task_context_for_location(workspace, location, cx)
3907 })
3908 .ok()
3909 .flatten()
3910 },
3911 );
3912 let tasks = tasks.zip(task_context).map(|(tasks, mut task_context)| {
3913 // Fill in the environmental variables from the tree-sitter captures
3914 let mut additional_task_variables = TaskVariables::default();
3915 for (capture_name, value) in tasks.1.extra_variables.clone() {
3916 additional_task_variables.insert(
3917 task::VariableName::Custom(capture_name.into()),
3918 value.clone(),
3919 );
3920 }
3921 task_context
3922 .task_variables
3923 .extend(additional_task_variables);
3924
3925 Arc::new(ResolvedTasks {
3926 templates: tasks
3927 .1
3928 .templates
3929 .iter()
3930 .filter_map(|(kind, template)| {
3931 template
3932 .resolve_task(&kind.to_id_base(), &task_context)
3933 .map(|task| (kind.clone(), task))
3934 })
3935 .collect(),
3936 position: snapshot
3937 .buffer_snapshot
3938 .anchor_before(Point::new(multibuffer_point.row, tasks.1.column)),
3939 })
3940 });
3941 let spawn_straight_away = tasks
3942 .as_ref()
3943 .map_or(false, |tasks| tasks.templates.len() == 1)
3944 && code_actions
3945 .as_ref()
3946 .map_or(true, |actions| actions.is_empty());
3947 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3948 buffer,
3949 actions: CodeActionContents {
3950 tasks,
3951 actions: code_actions,
3952 },
3953 selected_item: Default::default(),
3954 scroll_handle: UniformListScrollHandle::default(),
3955 deployed_from_indicator,
3956 }));
3957 if spawn_straight_away {
3958 if let Some(task) =
3959 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3960 {
3961 cx.notify();
3962 return Some(task);
3963 }
3964 }
3965 cx.notify();
3966 }
3967 Some(Task::ready(Ok(())))
3968 })?;
3969 if let Some(task) = spawned_test_task {
3970 task.await?;
3971 }
3972
3973 Ok::<_, anyhow::Error>(())
3974 })
3975 .detach_and_log_err(cx);
3976 }
3977
3978 pub fn confirm_code_action(
3979 &mut self,
3980 action: &ConfirmCodeAction,
3981 cx: &mut ViewContext<Self>,
3982 ) -> Option<Task<Result<()>>> {
3983 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3984 menu
3985 } else {
3986 return None;
3987 };
3988 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3989 let action = actions_menu.actions.get(action_ix)?;
3990 let title = action.label();
3991 let buffer = actions_menu.buffer;
3992 let workspace = self.workspace()?;
3993
3994 match action {
3995 CodeActionsItem::Task(task_source_kind, resolved_task) => {
3996 workspace.update(cx, |workspace, cx| {
3997 workspace::tasks::schedule_resolved_task(
3998 workspace,
3999 task_source_kind,
4000 resolved_task,
4001 false,
4002 cx,
4003 );
4004
4005 Some(Task::ready(Ok(())))
4006 })
4007 }
4008 CodeActionsItem::CodeAction(action) => {
4009 let apply_code_actions = workspace
4010 .read(cx)
4011 .project()
4012 .clone()
4013 .update(cx, |project, cx| {
4014 project.apply_code_action(buffer, action, true, cx)
4015 });
4016 let workspace = workspace.downgrade();
4017 Some(cx.spawn(|editor, cx| async move {
4018 let project_transaction = apply_code_actions.await?;
4019 Self::open_project_transaction(
4020 &editor,
4021 workspace,
4022 project_transaction,
4023 title,
4024 cx,
4025 )
4026 .await
4027 }))
4028 }
4029 }
4030 }
4031
4032 async fn open_project_transaction(
4033 this: &WeakView<Editor>,
4034 workspace: WeakView<Workspace>,
4035 transaction: ProjectTransaction,
4036 title: String,
4037 mut cx: AsyncWindowContext,
4038 ) -> Result<()> {
4039 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4040
4041 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4042 cx.update(|cx| {
4043 entries.sort_unstable_by_key(|(buffer, _)| {
4044 buffer.read(cx).file().map(|f| f.path().clone())
4045 });
4046 })?;
4047
4048 // If the project transaction's edits are all contained within this editor, then
4049 // avoid opening a new editor to display them.
4050
4051 if let Some((buffer, transaction)) = entries.first() {
4052 if entries.len() == 1 {
4053 let excerpt = this.update(&mut cx, |editor, cx| {
4054 editor
4055 .buffer()
4056 .read(cx)
4057 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4058 })?;
4059 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4060 if excerpted_buffer == *buffer {
4061 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4062 let excerpt_range = excerpt_range.to_offset(buffer);
4063 buffer
4064 .edited_ranges_for_transaction::<usize>(transaction)
4065 .all(|range| {
4066 excerpt_range.start <= range.start
4067 && excerpt_range.end >= range.end
4068 })
4069 })?;
4070
4071 if all_edits_within_excerpt {
4072 return Ok(());
4073 }
4074 }
4075 }
4076 }
4077 } else {
4078 return Ok(());
4079 }
4080
4081 let mut ranges_to_highlight = Vec::new();
4082 let excerpt_buffer = cx.new_model(|cx| {
4083 let mut multibuffer =
4084 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4085 for (buffer_handle, transaction) in &entries {
4086 let buffer = buffer_handle.read(cx);
4087 ranges_to_highlight.extend(
4088 multibuffer.push_excerpts_with_context_lines(
4089 buffer_handle.clone(),
4090 buffer
4091 .edited_ranges_for_transaction::<usize>(transaction)
4092 .collect(),
4093 DEFAULT_MULTIBUFFER_CONTEXT,
4094 cx,
4095 ),
4096 );
4097 }
4098 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4099 multibuffer
4100 })?;
4101
4102 workspace.update(&mut cx, |workspace, cx| {
4103 let project = workspace.project().clone();
4104 let editor =
4105 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4106 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4107 editor.update(cx, |editor, cx| {
4108 editor.highlight_background::<Self>(
4109 &ranges_to_highlight,
4110 |theme| theme.editor_highlighted_line_background,
4111 cx,
4112 );
4113 });
4114 })?;
4115
4116 Ok(())
4117 }
4118
4119 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4120 let project = self.project.clone()?;
4121 let buffer = self.buffer.read(cx);
4122 let newest_selection = self.selections.newest_anchor().clone();
4123 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4124 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4125 if start_buffer != end_buffer {
4126 return None;
4127 }
4128
4129 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4130 cx.background_executor()
4131 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4132 .await;
4133
4134 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4135 project.code_actions(&start_buffer, start..end, cx)
4136 }) {
4137 code_actions.await
4138 } else {
4139 Vec::new()
4140 };
4141
4142 this.update(&mut cx, |this, cx| {
4143 this.available_code_actions = if actions.is_empty() {
4144 None
4145 } else {
4146 Some((
4147 Location {
4148 buffer: start_buffer,
4149 range: start..end,
4150 },
4151 actions.into(),
4152 ))
4153 };
4154 cx.notify();
4155 })
4156 .log_err();
4157 }));
4158 None
4159 }
4160
4161 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4162 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4163 self.show_git_blame_inline = false;
4164
4165 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4166 cx.background_executor().timer(delay).await;
4167
4168 this.update(&mut cx, |this, cx| {
4169 this.show_git_blame_inline = true;
4170 cx.notify();
4171 })
4172 .log_err();
4173 }));
4174 }
4175 }
4176
4177 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4178 if self.pending_rename.is_some() {
4179 return None;
4180 }
4181
4182 let project = self.project.clone()?;
4183 let buffer = self.buffer.read(cx);
4184 let newest_selection = self.selections.newest_anchor().clone();
4185 let cursor_position = newest_selection.head();
4186 let (cursor_buffer, cursor_buffer_position) =
4187 buffer.text_anchor_for_position(cursor_position, cx)?;
4188 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4189 if cursor_buffer != tail_buffer {
4190 return None;
4191 }
4192
4193 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4194 cx.background_executor()
4195 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4196 .await;
4197
4198 let highlights = if let Some(highlights) = project
4199 .update(&mut cx, |project, cx| {
4200 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4201 })
4202 .log_err()
4203 {
4204 highlights.await.log_err()
4205 } else {
4206 None
4207 };
4208
4209 if let Some(highlights) = highlights {
4210 this.update(&mut cx, |this, cx| {
4211 if this.pending_rename.is_some() {
4212 return;
4213 }
4214
4215 let buffer_id = cursor_position.buffer_id;
4216 let buffer = this.buffer.read(cx);
4217 if !buffer
4218 .text_anchor_for_position(cursor_position, cx)
4219 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4220 {
4221 return;
4222 }
4223
4224 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4225 let mut write_ranges = Vec::new();
4226 let mut read_ranges = Vec::new();
4227 for highlight in highlights {
4228 for (excerpt_id, excerpt_range) in
4229 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4230 {
4231 let start = highlight
4232 .range
4233 .start
4234 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4235 let end = highlight
4236 .range
4237 .end
4238 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4239 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4240 continue;
4241 }
4242
4243 let range = Anchor {
4244 buffer_id,
4245 excerpt_id: excerpt_id,
4246 text_anchor: start,
4247 }..Anchor {
4248 buffer_id,
4249 excerpt_id,
4250 text_anchor: end,
4251 };
4252 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4253 write_ranges.push(range);
4254 } else {
4255 read_ranges.push(range);
4256 }
4257 }
4258 }
4259
4260 this.highlight_background::<DocumentHighlightRead>(
4261 &read_ranges,
4262 |theme| theme.editor_document_highlight_read_background,
4263 cx,
4264 );
4265 this.highlight_background::<DocumentHighlightWrite>(
4266 &write_ranges,
4267 |theme| theme.editor_document_highlight_write_background,
4268 cx,
4269 );
4270 cx.notify();
4271 })
4272 .log_err();
4273 }
4274 }));
4275 None
4276 }
4277
4278 fn refresh_inline_completion(
4279 &mut self,
4280 debounce: bool,
4281 cx: &mut ViewContext<Self>,
4282 ) -> Option<()> {
4283 let provider = self.inline_completion_provider()?;
4284 let cursor = self.selections.newest_anchor().head();
4285 let (buffer, cursor_buffer_position) =
4286 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4287 if !self.show_inline_completions
4288 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4289 {
4290 self.discard_inline_completion(cx);
4291 return None;
4292 }
4293
4294 self.update_visible_inline_completion(cx);
4295 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4296 Some(())
4297 }
4298
4299 fn cycle_inline_completion(
4300 &mut self,
4301 direction: Direction,
4302 cx: &mut ViewContext<Self>,
4303 ) -> Option<()> {
4304 let provider = self.inline_completion_provider()?;
4305 let cursor = self.selections.newest_anchor().head();
4306 let (buffer, cursor_buffer_position) =
4307 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4308 if !self.show_inline_completions
4309 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4310 {
4311 return None;
4312 }
4313
4314 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4315 self.update_visible_inline_completion(cx);
4316
4317 Some(())
4318 }
4319
4320 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4321 if !self.has_active_inline_completion(cx) {
4322 self.refresh_inline_completion(false, cx);
4323 return;
4324 }
4325
4326 self.update_visible_inline_completion(cx);
4327 }
4328
4329 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4330 self.show_cursor_names(cx);
4331 }
4332
4333 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4334 self.show_cursor_names = true;
4335 cx.notify();
4336 cx.spawn(|this, mut cx| async move {
4337 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4338 this.update(&mut cx, |this, cx| {
4339 this.show_cursor_names = false;
4340 cx.notify()
4341 })
4342 .ok()
4343 })
4344 .detach();
4345 }
4346
4347 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4348 if self.has_active_inline_completion(cx) {
4349 self.cycle_inline_completion(Direction::Next, cx);
4350 } else {
4351 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4352 if is_copilot_disabled {
4353 cx.propagate();
4354 }
4355 }
4356 }
4357
4358 pub fn previous_inline_completion(
4359 &mut self,
4360 _: &PreviousInlineCompletion,
4361 cx: &mut ViewContext<Self>,
4362 ) {
4363 if self.has_active_inline_completion(cx) {
4364 self.cycle_inline_completion(Direction::Prev, cx);
4365 } else {
4366 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4367 if is_copilot_disabled {
4368 cx.propagate();
4369 }
4370 }
4371 }
4372
4373 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4374 if let Some(completion) = self.take_active_inline_completion(cx) {
4375 if let Some(provider) = self.inline_completion_provider() {
4376 provider.accept(cx);
4377 }
4378
4379 cx.emit(EditorEvent::InputHandled {
4380 utf16_range_to_replace: None,
4381 text: completion.text.to_string().into(),
4382 });
4383 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4384 self.refresh_inline_completion(true, cx);
4385 cx.notify();
4386 true
4387 } else {
4388 false
4389 }
4390 }
4391
4392 pub fn accept_partial_inline_completion(
4393 &mut self,
4394 _: &AcceptPartialInlineCompletion,
4395 cx: &mut ViewContext<Self>,
4396 ) {
4397 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4398 if let Some(completion) = self.take_active_inline_completion(cx) {
4399 let mut partial_completion = completion
4400 .text
4401 .chars()
4402 .by_ref()
4403 .take_while(|c| c.is_alphabetic())
4404 .collect::<String>();
4405 if partial_completion.is_empty() {
4406 partial_completion = completion
4407 .text
4408 .chars()
4409 .by_ref()
4410 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4411 .collect::<String>();
4412 }
4413
4414 cx.emit(EditorEvent::InputHandled {
4415 utf16_range_to_replace: None,
4416 text: partial_completion.clone().into(),
4417 });
4418 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4419 self.refresh_inline_completion(true, cx);
4420 cx.notify();
4421 }
4422 }
4423 }
4424
4425 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4426 if let Some(provider) = self.inline_completion_provider() {
4427 provider.discard(cx);
4428 }
4429
4430 self.take_active_inline_completion(cx).is_some()
4431 }
4432
4433 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4434 if let Some(completion) = self.active_inline_completion.as_ref() {
4435 let buffer = self.buffer.read(cx).read(cx);
4436 completion.position.is_valid(&buffer)
4437 } else {
4438 false
4439 }
4440 }
4441
4442 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4443 let completion = self.active_inline_completion.take()?;
4444 self.display_map.update(cx, |map, cx| {
4445 map.splice_inlays(vec![completion.id], Default::default(), cx);
4446 });
4447 let buffer = self.buffer.read(cx).read(cx);
4448
4449 if completion.position.is_valid(&buffer) {
4450 Some(completion)
4451 } else {
4452 None
4453 }
4454 }
4455
4456 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4457 let selection = self.selections.newest_anchor();
4458 let cursor = selection.head();
4459
4460 if self.context_menu.read().is_none()
4461 && self.completion_tasks.is_empty()
4462 && selection.start == selection.end
4463 {
4464 if let Some(provider) = self.inline_completion_provider() {
4465 if let Some((buffer, cursor_buffer_position)) =
4466 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4467 {
4468 if let Some(text) =
4469 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4470 {
4471 let text = Rope::from(text);
4472 let mut to_remove = Vec::new();
4473 if let Some(completion) = self.active_inline_completion.take() {
4474 to_remove.push(completion.id);
4475 }
4476
4477 let completion_inlay =
4478 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4479 self.active_inline_completion = Some(completion_inlay.clone());
4480 self.display_map.update(cx, move |map, cx| {
4481 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4482 });
4483 cx.notify();
4484 return;
4485 }
4486 }
4487 }
4488 }
4489
4490 self.discard_inline_completion(cx);
4491 }
4492
4493 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4494 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4495 }
4496
4497 fn render_code_actions_indicator(
4498 &self,
4499 _style: &EditorStyle,
4500 row: DisplayRow,
4501 is_active: bool,
4502 cx: &mut ViewContext<Self>,
4503 ) -> Option<IconButton> {
4504 if self.available_code_actions.is_some() {
4505 Some(
4506 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4507 .icon_size(IconSize::XSmall)
4508 .size(ui::ButtonSize::None)
4509 .icon_color(Color::Muted)
4510 .selected(is_active)
4511 .on_click(cx.listener(move |editor, _e, cx| {
4512 editor.focus(cx);
4513 editor.toggle_code_actions(
4514 &ToggleCodeActions {
4515 deployed_from_indicator: Some(row),
4516 },
4517 cx,
4518 );
4519 })),
4520 )
4521 } else {
4522 None
4523 }
4524 }
4525
4526 fn clear_tasks(&mut self) {
4527 self.tasks.clear()
4528 }
4529
4530 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: (usize, RunnableTasks)) {
4531 if let Some(_) = self.tasks.insert(key, value) {
4532 // This case should hopefully be rare, but just in case...
4533 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4534 }
4535 }
4536
4537 fn render_run_indicator(
4538 &self,
4539 _style: &EditorStyle,
4540 is_active: bool,
4541 row: DisplayRow,
4542 cx: &mut ViewContext<Self>,
4543 ) -> IconButton {
4544 IconButton::new("run_indicator", ui::IconName::Play)
4545 .icon_size(IconSize::XSmall)
4546 .size(ui::ButtonSize::None)
4547 .icon_color(Color::Muted)
4548 .selected(is_active)
4549 .on_click(cx.listener(move |editor, _e, cx| {
4550 editor.focus(cx);
4551 editor.toggle_code_actions(
4552 &ToggleCodeActions {
4553 deployed_from_indicator: Some(row),
4554 },
4555 cx,
4556 );
4557 }))
4558 }
4559
4560 pub fn render_fold_indicators(
4561 &mut self,
4562 fold_data: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
4563 _style: &EditorStyle,
4564 gutter_hovered: bool,
4565 _line_height: Pixels,
4566 _gutter_margin: Pixels,
4567 cx: &mut ViewContext<Self>,
4568 ) -> Vec<Option<AnyElement>> {
4569 fold_data
4570 .iter()
4571 .enumerate()
4572 .map(|(ix, fold_data)| {
4573 fold_data
4574 .map(|(fold_status, buffer_row, active)| {
4575 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4576 IconButton::new(ix, ui::IconName::ChevronDown)
4577 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4578 FoldStatus::Folded => {
4579 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4580 }
4581 FoldStatus::Foldable => {
4582 this.fold_at(&FoldAt { buffer_row }, cx);
4583 }
4584 }))
4585 .icon_color(ui::Color::Muted)
4586 .icon_size(ui::IconSize::Small)
4587 .selected(fold_status == FoldStatus::Folded)
4588 .selected_icon(ui::IconName::ChevronRight)
4589 .size(ui::ButtonSize::None)
4590 .into_any_element()
4591 })
4592 })
4593 .flatten()
4594 })
4595 .collect()
4596 }
4597
4598 pub fn context_menu_visible(&self) -> bool {
4599 self.context_menu
4600 .read()
4601 .as_ref()
4602 .map_or(false, |menu| menu.visible())
4603 }
4604
4605 fn render_context_menu(
4606 &self,
4607 cursor_position: DisplayPoint,
4608 style: &EditorStyle,
4609 max_height: Pixels,
4610 cx: &mut ViewContext<Editor>,
4611 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4612 self.context_menu.read().as_ref().map(|menu| {
4613 menu.render(
4614 cursor_position,
4615 style,
4616 max_height,
4617 self.workspace.as_ref().map(|(w, _)| w.clone()),
4618 cx,
4619 )
4620 })
4621 }
4622
4623 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4624 cx.notify();
4625 self.completion_tasks.clear();
4626 let context_menu = self.context_menu.write().take();
4627 if context_menu.is_some() {
4628 self.update_visible_inline_completion(cx);
4629 }
4630 context_menu
4631 }
4632
4633 pub fn insert_snippet(
4634 &mut self,
4635 insertion_ranges: &[Range<usize>],
4636 snippet: Snippet,
4637 cx: &mut ViewContext<Self>,
4638 ) -> Result<()> {
4639 let tabstops = self.buffer.update(cx, |buffer, cx| {
4640 let snippet_text: Arc<str> = snippet.text.clone().into();
4641 buffer.edit(
4642 insertion_ranges
4643 .iter()
4644 .cloned()
4645 .map(|range| (range, snippet_text.clone())),
4646 Some(AutoindentMode::EachLine),
4647 cx,
4648 );
4649
4650 let snapshot = &*buffer.read(cx);
4651 let snippet = &snippet;
4652 snippet
4653 .tabstops
4654 .iter()
4655 .map(|tabstop| {
4656 let mut tabstop_ranges = tabstop
4657 .iter()
4658 .flat_map(|tabstop_range| {
4659 let mut delta = 0_isize;
4660 insertion_ranges.iter().map(move |insertion_range| {
4661 let insertion_start = insertion_range.start as isize + delta;
4662 delta +=
4663 snippet.text.len() as isize - insertion_range.len() as isize;
4664
4665 let start = snapshot.anchor_before(
4666 (insertion_start + tabstop_range.start) as usize,
4667 );
4668 let end = snapshot
4669 .anchor_after((insertion_start + tabstop_range.end) as usize);
4670 start..end
4671 })
4672 })
4673 .collect::<Vec<_>>();
4674 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4675 tabstop_ranges
4676 })
4677 .collect::<Vec<_>>()
4678 });
4679
4680 if let Some(tabstop) = tabstops.first() {
4681 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4682 s.select_ranges(tabstop.iter().cloned());
4683 });
4684 self.snippet_stack.push(SnippetState {
4685 active_index: 0,
4686 ranges: tabstops,
4687 });
4688
4689 // Check whether the just-entered snippet ends with an auto-closable bracket.
4690 if self.autoclose_regions.is_empty() {
4691 let snapshot = self.buffer.read(cx).snapshot(cx);
4692 for selection in &mut self.selections.all::<Point>(cx) {
4693 let selection_head = selection.head();
4694 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4695 continue;
4696 };
4697
4698 let mut bracket_pair = None;
4699 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4700 let prev_chars = snapshot
4701 .reversed_chars_at(selection_head)
4702 .collect::<String>();
4703 for (pair, enabled) in scope.brackets() {
4704 if enabled
4705 && pair.close
4706 && prev_chars.starts_with(pair.start.as_str())
4707 && next_chars.starts_with(pair.end.as_str())
4708 {
4709 bracket_pair = Some(pair.clone());
4710 break;
4711 }
4712 }
4713 if let Some(pair) = bracket_pair {
4714 let start = snapshot.anchor_after(selection_head);
4715 let end = snapshot.anchor_after(selection_head);
4716 self.autoclose_regions.push(AutocloseRegion {
4717 selection_id: selection.id,
4718 range: start..end,
4719 pair,
4720 });
4721 }
4722 }
4723 }
4724 }
4725 Ok(())
4726 }
4727
4728 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4729 self.move_to_snippet_tabstop(Bias::Right, cx)
4730 }
4731
4732 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4733 self.move_to_snippet_tabstop(Bias::Left, cx)
4734 }
4735
4736 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4737 if let Some(mut snippet) = self.snippet_stack.pop() {
4738 match bias {
4739 Bias::Left => {
4740 if snippet.active_index > 0 {
4741 snippet.active_index -= 1;
4742 } else {
4743 self.snippet_stack.push(snippet);
4744 return false;
4745 }
4746 }
4747 Bias::Right => {
4748 if snippet.active_index + 1 < snippet.ranges.len() {
4749 snippet.active_index += 1;
4750 } else {
4751 self.snippet_stack.push(snippet);
4752 return false;
4753 }
4754 }
4755 }
4756 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4757 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4758 s.select_anchor_ranges(current_ranges.iter().cloned())
4759 });
4760 // If snippet state is not at the last tabstop, push it back on the stack
4761 if snippet.active_index + 1 < snippet.ranges.len() {
4762 self.snippet_stack.push(snippet);
4763 }
4764 return true;
4765 }
4766 }
4767
4768 false
4769 }
4770
4771 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4772 self.transact(cx, |this, cx| {
4773 this.select_all(&SelectAll, cx);
4774 this.insert("", cx);
4775 });
4776 }
4777
4778 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4779 self.transact(cx, |this, cx| {
4780 this.select_autoclose_pair(cx);
4781 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4782 if !this.selections.line_mode {
4783 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4784 for selection in &mut selections {
4785 if selection.is_empty() {
4786 let old_head = selection.head();
4787 let mut new_head =
4788 movement::left(&display_map, old_head.to_display_point(&display_map))
4789 .to_point(&display_map);
4790 if let Some((buffer, line_buffer_range)) = display_map
4791 .buffer_snapshot
4792 .buffer_line_for_row(MultiBufferRow(old_head.row))
4793 {
4794 let indent_size =
4795 buffer.indent_size_for_line(line_buffer_range.start.row);
4796 let indent_len = match indent_size.kind {
4797 IndentKind::Space => {
4798 buffer.settings_at(line_buffer_range.start, cx).tab_size
4799 }
4800 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4801 };
4802 if old_head.column <= indent_size.len && old_head.column > 0 {
4803 let indent_len = indent_len.get();
4804 new_head = cmp::min(
4805 new_head,
4806 MultiBufferPoint::new(
4807 old_head.row,
4808 ((old_head.column - 1) / indent_len) * indent_len,
4809 ),
4810 );
4811 }
4812 }
4813
4814 selection.set_head(new_head, SelectionGoal::None);
4815 }
4816 }
4817 }
4818
4819 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4820 this.insert("", cx);
4821 this.refresh_inline_completion(true, cx);
4822 });
4823 }
4824
4825 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4826 self.transact(cx, |this, cx| {
4827 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4828 let line_mode = s.line_mode;
4829 s.move_with(|map, selection| {
4830 if selection.is_empty() && !line_mode {
4831 let cursor = movement::right(map, selection.head());
4832 selection.end = cursor;
4833 selection.reversed = true;
4834 selection.goal = SelectionGoal::None;
4835 }
4836 })
4837 });
4838 this.insert("", cx);
4839 this.refresh_inline_completion(true, cx);
4840 });
4841 }
4842
4843 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4844 if self.move_to_prev_snippet_tabstop(cx) {
4845 return;
4846 }
4847
4848 self.outdent(&Outdent, cx);
4849 }
4850
4851 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4852 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4853 return;
4854 }
4855
4856 let mut selections = self.selections.all_adjusted(cx);
4857 let buffer = self.buffer.read(cx);
4858 let snapshot = buffer.snapshot(cx);
4859 let rows_iter = selections.iter().map(|s| s.head().row);
4860 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4861
4862 let mut edits = Vec::new();
4863 let mut prev_edited_row = 0;
4864 let mut row_delta = 0;
4865 for selection in &mut selections {
4866 if selection.start.row != prev_edited_row {
4867 row_delta = 0;
4868 }
4869 prev_edited_row = selection.end.row;
4870
4871 // If the selection is non-empty, then increase the indentation of the selected lines.
4872 if !selection.is_empty() {
4873 row_delta =
4874 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4875 continue;
4876 }
4877
4878 // If the selection is empty and the cursor is in the leading whitespace before the
4879 // suggested indentation, then auto-indent the line.
4880 let cursor = selection.head();
4881 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4882 if let Some(suggested_indent) =
4883 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4884 {
4885 if cursor.column < suggested_indent.len
4886 && cursor.column <= current_indent.len
4887 && current_indent.len <= suggested_indent.len
4888 {
4889 selection.start = Point::new(cursor.row, suggested_indent.len);
4890 selection.end = selection.start;
4891 if row_delta == 0 {
4892 edits.extend(Buffer::edit_for_indent_size_adjustment(
4893 cursor.row,
4894 current_indent,
4895 suggested_indent,
4896 ));
4897 row_delta = suggested_indent.len - current_indent.len;
4898 }
4899 continue;
4900 }
4901 }
4902
4903 // Accept copilot completion if there is only one selection and the cursor is not
4904 // in the leading whitespace.
4905 if self.selections.count() == 1
4906 && cursor.column >= current_indent.len
4907 && self.has_active_inline_completion(cx)
4908 {
4909 self.accept_inline_completion(cx);
4910 return;
4911 }
4912
4913 // Otherwise, insert a hard or soft tab.
4914 let settings = buffer.settings_at(cursor, cx);
4915 let tab_size = if settings.hard_tabs {
4916 IndentSize::tab()
4917 } else {
4918 let tab_size = settings.tab_size.get();
4919 let char_column = snapshot
4920 .text_for_range(Point::new(cursor.row, 0)..cursor)
4921 .flat_map(str::chars)
4922 .count()
4923 + row_delta as usize;
4924 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4925 IndentSize::spaces(chars_to_next_tab_stop)
4926 };
4927 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4928 selection.end = selection.start;
4929 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4930 row_delta += tab_size.len;
4931 }
4932
4933 self.transact(cx, |this, cx| {
4934 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4935 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4936 this.refresh_inline_completion(true, cx);
4937 });
4938 }
4939
4940 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4941 if self.read_only(cx) {
4942 return;
4943 }
4944 let mut selections = self.selections.all::<Point>(cx);
4945 let mut prev_edited_row = 0;
4946 let mut row_delta = 0;
4947 let mut edits = Vec::new();
4948 let buffer = self.buffer.read(cx);
4949 let snapshot = buffer.snapshot(cx);
4950 for selection in &mut selections {
4951 if selection.start.row != prev_edited_row {
4952 row_delta = 0;
4953 }
4954 prev_edited_row = selection.end.row;
4955
4956 row_delta =
4957 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4958 }
4959
4960 self.transact(cx, |this, cx| {
4961 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4962 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4963 });
4964 }
4965
4966 fn indent_selection(
4967 buffer: &MultiBuffer,
4968 snapshot: &MultiBufferSnapshot,
4969 selection: &mut Selection<Point>,
4970 edits: &mut Vec<(Range<Point>, String)>,
4971 delta_for_start_row: u32,
4972 cx: &AppContext,
4973 ) -> u32 {
4974 let settings = buffer.settings_at(selection.start, cx);
4975 let tab_size = settings.tab_size.get();
4976 let indent_kind = if settings.hard_tabs {
4977 IndentKind::Tab
4978 } else {
4979 IndentKind::Space
4980 };
4981 let mut start_row = selection.start.row;
4982 let mut end_row = selection.end.row + 1;
4983
4984 // If a selection ends at the beginning of a line, don't indent
4985 // that last line.
4986 if selection.end.column == 0 && selection.end.row > selection.start.row {
4987 end_row -= 1;
4988 }
4989
4990 // Avoid re-indenting a row that has already been indented by a
4991 // previous selection, but still update this selection's column
4992 // to reflect that indentation.
4993 if delta_for_start_row > 0 {
4994 start_row += 1;
4995 selection.start.column += delta_for_start_row;
4996 if selection.end.row == selection.start.row {
4997 selection.end.column += delta_for_start_row;
4998 }
4999 }
5000
5001 let mut delta_for_end_row = 0;
5002 let has_multiple_rows = start_row + 1 != end_row;
5003 for row in start_row..end_row {
5004 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5005 let indent_delta = match (current_indent.kind, indent_kind) {
5006 (IndentKind::Space, IndentKind::Space) => {
5007 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5008 IndentSize::spaces(columns_to_next_tab_stop)
5009 }
5010 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5011 (_, IndentKind::Tab) => IndentSize::tab(),
5012 };
5013
5014 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5015 0
5016 } else {
5017 selection.start.column
5018 };
5019 let row_start = Point::new(row, start);
5020 edits.push((
5021 row_start..row_start,
5022 indent_delta.chars().collect::<String>(),
5023 ));
5024
5025 // Update this selection's endpoints to reflect the indentation.
5026 if row == selection.start.row {
5027 selection.start.column += indent_delta.len;
5028 }
5029 if row == selection.end.row {
5030 selection.end.column += indent_delta.len;
5031 delta_for_end_row = indent_delta.len;
5032 }
5033 }
5034
5035 if selection.start.row == selection.end.row {
5036 delta_for_start_row + delta_for_end_row
5037 } else {
5038 delta_for_end_row
5039 }
5040 }
5041
5042 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5043 if self.read_only(cx) {
5044 return;
5045 }
5046 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5047 let selections = self.selections.all::<Point>(cx);
5048 let mut deletion_ranges = Vec::new();
5049 let mut last_outdent = None;
5050 {
5051 let buffer = self.buffer.read(cx);
5052 let snapshot = buffer.snapshot(cx);
5053 for selection in &selections {
5054 let settings = buffer.settings_at(selection.start, cx);
5055 let tab_size = settings.tab_size.get();
5056 let mut rows = selection.spanned_rows(false, &display_map);
5057
5058 // Avoid re-outdenting a row that has already been outdented by a
5059 // previous selection.
5060 if let Some(last_row) = last_outdent {
5061 if last_row == rows.start {
5062 rows.start = rows.start.next_row();
5063 }
5064 }
5065 let has_multiple_rows = rows.len() > 1;
5066 for row in rows.iter_rows() {
5067 let indent_size = snapshot.indent_size_for_line(row);
5068 if indent_size.len > 0 {
5069 let deletion_len = match indent_size.kind {
5070 IndentKind::Space => {
5071 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5072 if columns_to_prev_tab_stop == 0 {
5073 tab_size
5074 } else {
5075 columns_to_prev_tab_stop
5076 }
5077 }
5078 IndentKind::Tab => 1,
5079 };
5080 let start = if has_multiple_rows
5081 || deletion_len > selection.start.column
5082 || indent_size.len < selection.start.column
5083 {
5084 0
5085 } else {
5086 selection.start.column - deletion_len
5087 };
5088 deletion_ranges.push(
5089 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5090 );
5091 last_outdent = Some(row);
5092 }
5093 }
5094 }
5095 }
5096
5097 self.transact(cx, |this, cx| {
5098 this.buffer.update(cx, |buffer, cx| {
5099 let empty_str: Arc<str> = "".into();
5100 buffer.edit(
5101 deletion_ranges
5102 .into_iter()
5103 .map(|range| (range, empty_str.clone())),
5104 None,
5105 cx,
5106 );
5107 });
5108 let selections = this.selections.all::<usize>(cx);
5109 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5110 });
5111 }
5112
5113 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5114 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5115 let selections = self.selections.all::<Point>(cx);
5116
5117 let mut new_cursors = Vec::new();
5118 let mut edit_ranges = Vec::new();
5119 let mut selections = selections.iter().peekable();
5120 while let Some(selection) = selections.next() {
5121 let mut rows = selection.spanned_rows(false, &display_map);
5122 let goal_display_column = selection.head().to_display_point(&display_map).column();
5123
5124 // Accumulate contiguous regions of rows that we want to delete.
5125 while let Some(next_selection) = selections.peek() {
5126 let next_rows = next_selection.spanned_rows(false, &display_map);
5127 if next_rows.start <= rows.end {
5128 rows.end = next_rows.end;
5129 selections.next().unwrap();
5130 } else {
5131 break;
5132 }
5133 }
5134
5135 let buffer = &display_map.buffer_snapshot;
5136 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5137 let edit_end;
5138 let cursor_buffer_row;
5139 if buffer.max_point().row >= rows.end.0 {
5140 // If there's a line after the range, delete the \n from the end of the row range
5141 // and position the cursor on the next line.
5142 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5143 cursor_buffer_row = rows.end;
5144 } else {
5145 // If there isn't a line after the range, delete the \n from the line before the
5146 // start of the row range and position the cursor there.
5147 edit_start = edit_start.saturating_sub(1);
5148 edit_end = buffer.len();
5149 cursor_buffer_row = rows.start.previous_row();
5150 }
5151
5152 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5153 *cursor.column_mut() =
5154 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5155
5156 new_cursors.push((
5157 selection.id,
5158 buffer.anchor_after(cursor.to_point(&display_map)),
5159 ));
5160 edit_ranges.push(edit_start..edit_end);
5161 }
5162
5163 self.transact(cx, |this, cx| {
5164 let buffer = this.buffer.update(cx, |buffer, cx| {
5165 let empty_str: Arc<str> = "".into();
5166 buffer.edit(
5167 edit_ranges
5168 .into_iter()
5169 .map(|range| (range, empty_str.clone())),
5170 None,
5171 cx,
5172 );
5173 buffer.snapshot(cx)
5174 });
5175 let new_selections = new_cursors
5176 .into_iter()
5177 .map(|(id, cursor)| {
5178 let cursor = cursor.to_point(&buffer);
5179 Selection {
5180 id,
5181 start: cursor,
5182 end: cursor,
5183 reversed: false,
5184 goal: SelectionGoal::None,
5185 }
5186 })
5187 .collect();
5188
5189 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5190 s.select(new_selections);
5191 });
5192 });
5193 }
5194
5195 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5196 if self.read_only(cx) {
5197 return;
5198 }
5199 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5200 for selection in self.selections.all::<Point>(cx) {
5201 let start = MultiBufferRow(selection.start.row);
5202 let end = if selection.start.row == selection.end.row {
5203 MultiBufferRow(selection.start.row + 1)
5204 } else {
5205 MultiBufferRow(selection.end.row)
5206 };
5207
5208 if let Some(last_row_range) = row_ranges.last_mut() {
5209 if start <= last_row_range.end {
5210 last_row_range.end = end;
5211 continue;
5212 }
5213 }
5214 row_ranges.push(start..end);
5215 }
5216
5217 let snapshot = self.buffer.read(cx).snapshot(cx);
5218 let mut cursor_positions = Vec::new();
5219 for row_range in &row_ranges {
5220 let anchor = snapshot.anchor_before(Point::new(
5221 row_range.end.previous_row().0,
5222 snapshot.line_len(row_range.end.previous_row()),
5223 ));
5224 cursor_positions.push(anchor..anchor);
5225 }
5226
5227 self.transact(cx, |this, cx| {
5228 for row_range in row_ranges.into_iter().rev() {
5229 for row in row_range.iter_rows().rev() {
5230 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5231 let next_line_row = row.next_row();
5232 let indent = snapshot.indent_size_for_line(next_line_row);
5233 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5234
5235 let replace = if snapshot.line_len(next_line_row) > indent.len {
5236 " "
5237 } else {
5238 ""
5239 };
5240
5241 this.buffer.update(cx, |buffer, cx| {
5242 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5243 });
5244 }
5245 }
5246
5247 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5248 s.select_anchor_ranges(cursor_positions)
5249 });
5250 });
5251 }
5252
5253 pub fn sort_lines_case_sensitive(
5254 &mut self,
5255 _: &SortLinesCaseSensitive,
5256 cx: &mut ViewContext<Self>,
5257 ) {
5258 self.manipulate_lines(cx, |lines| lines.sort())
5259 }
5260
5261 pub fn sort_lines_case_insensitive(
5262 &mut self,
5263 _: &SortLinesCaseInsensitive,
5264 cx: &mut ViewContext<Self>,
5265 ) {
5266 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5267 }
5268
5269 pub fn unique_lines_case_insensitive(
5270 &mut self,
5271 _: &UniqueLinesCaseInsensitive,
5272 cx: &mut ViewContext<Self>,
5273 ) {
5274 self.manipulate_lines(cx, |lines| {
5275 let mut seen = HashSet::default();
5276 lines.retain(|line| seen.insert(line.to_lowercase()));
5277 })
5278 }
5279
5280 pub fn unique_lines_case_sensitive(
5281 &mut self,
5282 _: &UniqueLinesCaseSensitive,
5283 cx: &mut ViewContext<Self>,
5284 ) {
5285 self.manipulate_lines(cx, |lines| {
5286 let mut seen = HashSet::default();
5287 lines.retain(|line| seen.insert(*line));
5288 })
5289 }
5290
5291 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5292 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5293 if !revert_changes.is_empty() {
5294 self.transact(cx, |editor, cx| {
5295 editor.buffer().update(cx, |multi_buffer, cx| {
5296 for (buffer_id, changes) in revert_changes {
5297 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5298 buffer.update(cx, |buffer, cx| {
5299 buffer.edit(
5300 changes.into_iter().map(|(range, text)| {
5301 (range, text.to_string().map(Arc::<str>::from))
5302 }),
5303 None,
5304 cx,
5305 );
5306 });
5307 }
5308 }
5309 });
5310 editor.change_selections(None, cx, |selections| selections.refresh());
5311 });
5312 }
5313 }
5314
5315 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5316 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5317 let project_path = buffer.read(cx).project_path(cx)?;
5318 let project = self.project.as_ref()?.read(cx);
5319 let entry = project.entry_for_path(&project_path, cx)?;
5320 let abs_path = project.absolute_path(&project_path, cx)?;
5321 let parent = if entry.is_symlink {
5322 abs_path.canonicalize().ok()?
5323 } else {
5324 abs_path
5325 }
5326 .parent()?
5327 .to_path_buf();
5328 Some(parent)
5329 }) {
5330 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5331 }
5332 }
5333
5334 fn gather_revert_changes(
5335 &mut self,
5336 selections: &[Selection<Anchor>],
5337 cx: &mut ViewContext<'_, Editor>,
5338 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5339 let mut revert_changes = HashMap::default();
5340 self.buffer.update(cx, |multi_buffer, cx| {
5341 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5342 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5343 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5344 }
5345 });
5346 revert_changes
5347 }
5348
5349 fn prepare_revert_change(
5350 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5351 multi_buffer: &MultiBuffer,
5352 hunk: &DiffHunk<MultiBufferRow>,
5353 cx: &mut AppContext,
5354 ) -> Option<()> {
5355 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5356 let buffer = buffer.read(cx);
5357 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5358 let buffer_snapshot = buffer.snapshot();
5359 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5360 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5361 probe
5362 .0
5363 .start
5364 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5365 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5366 }) {
5367 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5368 Some(())
5369 } else {
5370 None
5371 }
5372 }
5373
5374 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5375 self.manipulate_lines(cx, |lines| lines.reverse())
5376 }
5377
5378 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5379 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5380 }
5381
5382 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5383 where
5384 Fn: FnMut(&mut Vec<&str>),
5385 {
5386 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5387 let buffer = self.buffer.read(cx).snapshot(cx);
5388
5389 let mut edits = Vec::new();
5390
5391 let selections = self.selections.all::<Point>(cx);
5392 let mut selections = selections.iter().peekable();
5393 let mut contiguous_row_selections = Vec::new();
5394 let mut new_selections = Vec::new();
5395 let mut added_lines = 0;
5396 let mut removed_lines = 0;
5397
5398 while let Some(selection) = selections.next() {
5399 let (start_row, end_row) = consume_contiguous_rows(
5400 &mut contiguous_row_selections,
5401 selection,
5402 &display_map,
5403 &mut selections,
5404 );
5405
5406 let start_point = Point::new(start_row.0, 0);
5407 let end_point = Point::new(
5408 end_row.previous_row().0,
5409 buffer.line_len(end_row.previous_row()),
5410 );
5411 let text = buffer
5412 .text_for_range(start_point..end_point)
5413 .collect::<String>();
5414
5415 let mut lines = text.split('\n').collect_vec();
5416
5417 let lines_before = lines.len();
5418 callback(&mut lines);
5419 let lines_after = lines.len();
5420
5421 edits.push((start_point..end_point, lines.join("\n")));
5422
5423 // Selections must change based on added and removed line count
5424 let start_row =
5425 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5426 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5427 new_selections.push(Selection {
5428 id: selection.id,
5429 start: start_row,
5430 end: end_row,
5431 goal: SelectionGoal::None,
5432 reversed: selection.reversed,
5433 });
5434
5435 if lines_after > lines_before {
5436 added_lines += lines_after - lines_before;
5437 } else if lines_before > lines_after {
5438 removed_lines += lines_before - lines_after;
5439 }
5440 }
5441
5442 self.transact(cx, |this, cx| {
5443 let buffer = this.buffer.update(cx, |buffer, cx| {
5444 buffer.edit(edits, None, cx);
5445 buffer.snapshot(cx)
5446 });
5447
5448 // Recalculate offsets on newly edited buffer
5449 let new_selections = new_selections
5450 .iter()
5451 .map(|s| {
5452 let start_point = Point::new(s.start.0, 0);
5453 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5454 Selection {
5455 id: s.id,
5456 start: buffer.point_to_offset(start_point),
5457 end: buffer.point_to_offset(end_point),
5458 goal: s.goal,
5459 reversed: s.reversed,
5460 }
5461 })
5462 .collect();
5463
5464 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5465 s.select(new_selections);
5466 });
5467
5468 this.request_autoscroll(Autoscroll::fit(), cx);
5469 });
5470 }
5471
5472 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5473 self.manipulate_text(cx, |text| text.to_uppercase())
5474 }
5475
5476 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5477 self.manipulate_text(cx, |text| text.to_lowercase())
5478 }
5479
5480 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5481 self.manipulate_text(cx, |text| {
5482 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5483 // https://github.com/rutrum/convert-case/issues/16
5484 text.split('\n')
5485 .map(|line| line.to_case(Case::Title))
5486 .join("\n")
5487 })
5488 }
5489
5490 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5491 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5492 }
5493
5494 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5495 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5496 }
5497
5498 pub fn convert_to_upper_camel_case(
5499 &mut self,
5500 _: &ConvertToUpperCamelCase,
5501 cx: &mut ViewContext<Self>,
5502 ) {
5503 self.manipulate_text(cx, |text| {
5504 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5505 // https://github.com/rutrum/convert-case/issues/16
5506 text.split('\n')
5507 .map(|line| line.to_case(Case::UpperCamel))
5508 .join("\n")
5509 })
5510 }
5511
5512 pub fn convert_to_lower_camel_case(
5513 &mut self,
5514 _: &ConvertToLowerCamelCase,
5515 cx: &mut ViewContext<Self>,
5516 ) {
5517 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5518 }
5519
5520 pub fn convert_to_opposite_case(
5521 &mut self,
5522 _: &ConvertToOppositeCase,
5523 cx: &mut ViewContext<Self>,
5524 ) {
5525 self.manipulate_text(cx, |text| {
5526 text.chars()
5527 .fold(String::with_capacity(text.len()), |mut t, c| {
5528 if c.is_uppercase() {
5529 t.extend(c.to_lowercase());
5530 } else {
5531 t.extend(c.to_uppercase());
5532 }
5533 t
5534 })
5535 })
5536 }
5537
5538 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5539 where
5540 Fn: FnMut(&str) -> String,
5541 {
5542 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5543 let buffer = self.buffer.read(cx).snapshot(cx);
5544
5545 let mut new_selections = Vec::new();
5546 let mut edits = Vec::new();
5547 let mut selection_adjustment = 0i32;
5548
5549 for selection in self.selections.all::<usize>(cx) {
5550 let selection_is_empty = selection.is_empty();
5551
5552 let (start, end) = if selection_is_empty {
5553 let word_range = movement::surrounding_word(
5554 &display_map,
5555 selection.start.to_display_point(&display_map),
5556 );
5557 let start = word_range.start.to_offset(&display_map, Bias::Left);
5558 let end = word_range.end.to_offset(&display_map, Bias::Left);
5559 (start, end)
5560 } else {
5561 (selection.start, selection.end)
5562 };
5563
5564 let text = buffer.text_for_range(start..end).collect::<String>();
5565 let old_length = text.len() as i32;
5566 let text = callback(&text);
5567
5568 new_selections.push(Selection {
5569 start: (start as i32 - selection_adjustment) as usize,
5570 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5571 goal: SelectionGoal::None,
5572 ..selection
5573 });
5574
5575 selection_adjustment += old_length - text.len() as i32;
5576
5577 edits.push((start..end, text));
5578 }
5579
5580 self.transact(cx, |this, cx| {
5581 this.buffer.update(cx, |buffer, cx| {
5582 buffer.edit(edits, None, cx);
5583 });
5584
5585 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5586 s.select(new_selections);
5587 });
5588
5589 this.request_autoscroll(Autoscroll::fit(), cx);
5590 });
5591 }
5592
5593 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5594 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5595 let buffer = &display_map.buffer_snapshot;
5596 let selections = self.selections.all::<Point>(cx);
5597
5598 let mut edits = Vec::new();
5599 let mut selections_iter = selections.iter().peekable();
5600 while let Some(selection) = selections_iter.next() {
5601 // Avoid duplicating the same lines twice.
5602 let mut rows = selection.spanned_rows(false, &display_map);
5603
5604 while let Some(next_selection) = selections_iter.peek() {
5605 let next_rows = next_selection.spanned_rows(false, &display_map);
5606 if next_rows.start < rows.end {
5607 rows.end = next_rows.end;
5608 selections_iter.next().unwrap();
5609 } else {
5610 break;
5611 }
5612 }
5613
5614 // Copy the text from the selected row region and splice it either at the start
5615 // or end of the region.
5616 let start = Point::new(rows.start.0, 0);
5617 let end = Point::new(
5618 rows.end.previous_row().0,
5619 buffer.line_len(rows.end.previous_row()),
5620 );
5621 let text = buffer
5622 .text_for_range(start..end)
5623 .chain(Some("\n"))
5624 .collect::<String>();
5625 let insert_location = if upwards {
5626 Point::new(rows.end.0, 0)
5627 } else {
5628 start
5629 };
5630 edits.push((insert_location..insert_location, text));
5631 }
5632
5633 self.transact(cx, |this, cx| {
5634 this.buffer.update(cx, |buffer, cx| {
5635 buffer.edit(edits, None, cx);
5636 });
5637
5638 this.request_autoscroll(Autoscroll::fit(), cx);
5639 });
5640 }
5641
5642 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5643 self.duplicate_line(true, cx);
5644 }
5645
5646 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5647 self.duplicate_line(false, cx);
5648 }
5649
5650 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5651 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5652 let buffer = self.buffer.read(cx).snapshot(cx);
5653
5654 let mut edits = Vec::new();
5655 let mut unfold_ranges = Vec::new();
5656 let mut refold_ranges = Vec::new();
5657
5658 let selections = self.selections.all::<Point>(cx);
5659 let mut selections = selections.iter().peekable();
5660 let mut contiguous_row_selections = Vec::new();
5661 let mut new_selections = Vec::new();
5662
5663 while let Some(selection) = selections.next() {
5664 // Find all the selections that span a contiguous row range
5665 let (start_row, end_row) = consume_contiguous_rows(
5666 &mut contiguous_row_selections,
5667 selection,
5668 &display_map,
5669 &mut selections,
5670 );
5671
5672 // Move the text spanned by the row range to be before the line preceding the row range
5673 if start_row.0 > 0 {
5674 let range_to_move = Point::new(
5675 start_row.previous_row().0,
5676 buffer.line_len(start_row.previous_row()),
5677 )
5678 ..Point::new(
5679 end_row.previous_row().0,
5680 buffer.line_len(end_row.previous_row()),
5681 );
5682 let insertion_point = display_map
5683 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5684 .0;
5685
5686 // Don't move lines across excerpts
5687 if buffer
5688 .excerpt_boundaries_in_range((
5689 Bound::Excluded(insertion_point),
5690 Bound::Included(range_to_move.end),
5691 ))
5692 .next()
5693 .is_none()
5694 {
5695 let text = buffer
5696 .text_for_range(range_to_move.clone())
5697 .flat_map(|s| s.chars())
5698 .skip(1)
5699 .chain(['\n'])
5700 .collect::<String>();
5701
5702 edits.push((
5703 buffer.anchor_after(range_to_move.start)
5704 ..buffer.anchor_before(range_to_move.end),
5705 String::new(),
5706 ));
5707 let insertion_anchor = buffer.anchor_after(insertion_point);
5708 edits.push((insertion_anchor..insertion_anchor, text));
5709
5710 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5711
5712 // Move selections up
5713 new_selections.extend(contiguous_row_selections.drain(..).map(
5714 |mut selection| {
5715 selection.start.row -= row_delta;
5716 selection.end.row -= row_delta;
5717 selection
5718 },
5719 ));
5720
5721 // Move folds up
5722 unfold_ranges.push(range_to_move.clone());
5723 for fold in display_map.folds_in_range(
5724 buffer.anchor_before(range_to_move.start)
5725 ..buffer.anchor_after(range_to_move.end),
5726 ) {
5727 let mut start = fold.range.start.to_point(&buffer);
5728 let mut end = fold.range.end.to_point(&buffer);
5729 start.row -= row_delta;
5730 end.row -= row_delta;
5731 refold_ranges.push(start..end);
5732 }
5733 }
5734 }
5735
5736 // If we didn't move line(s), preserve the existing selections
5737 new_selections.append(&mut contiguous_row_selections);
5738 }
5739
5740 self.transact(cx, |this, cx| {
5741 this.unfold_ranges(unfold_ranges, true, true, cx);
5742 this.buffer.update(cx, |buffer, cx| {
5743 for (range, text) in edits {
5744 buffer.edit([(range, text)], None, cx);
5745 }
5746 });
5747 this.fold_ranges(refold_ranges, true, cx);
5748 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5749 s.select(new_selections);
5750 })
5751 });
5752 }
5753
5754 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5755 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5756 let buffer = self.buffer.read(cx).snapshot(cx);
5757
5758 let mut edits = Vec::new();
5759 let mut unfold_ranges = Vec::new();
5760 let mut refold_ranges = Vec::new();
5761
5762 let selections = self.selections.all::<Point>(cx);
5763 let mut selections = selections.iter().peekable();
5764 let mut contiguous_row_selections = Vec::new();
5765 let mut new_selections = Vec::new();
5766
5767 while let Some(selection) = selections.next() {
5768 // Find all the selections that span a contiguous row range
5769 let (start_row, end_row) = consume_contiguous_rows(
5770 &mut contiguous_row_selections,
5771 selection,
5772 &display_map,
5773 &mut selections,
5774 );
5775
5776 // Move the text spanned by the row range to be after the last line of the row range
5777 if end_row.0 <= buffer.max_point().row {
5778 let range_to_move =
5779 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5780 let insertion_point = display_map
5781 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5782 .0;
5783
5784 // Don't move lines across excerpt boundaries
5785 if buffer
5786 .excerpt_boundaries_in_range((
5787 Bound::Excluded(range_to_move.start),
5788 Bound::Included(insertion_point),
5789 ))
5790 .next()
5791 .is_none()
5792 {
5793 let mut text = String::from("\n");
5794 text.extend(buffer.text_for_range(range_to_move.clone()));
5795 text.pop(); // Drop trailing newline
5796 edits.push((
5797 buffer.anchor_after(range_to_move.start)
5798 ..buffer.anchor_before(range_to_move.end),
5799 String::new(),
5800 ));
5801 let insertion_anchor = buffer.anchor_after(insertion_point);
5802 edits.push((insertion_anchor..insertion_anchor, text));
5803
5804 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5805
5806 // Move selections down
5807 new_selections.extend(contiguous_row_selections.drain(..).map(
5808 |mut selection| {
5809 selection.start.row += row_delta;
5810 selection.end.row += row_delta;
5811 selection
5812 },
5813 ));
5814
5815 // Move folds down
5816 unfold_ranges.push(range_to_move.clone());
5817 for fold in display_map.folds_in_range(
5818 buffer.anchor_before(range_to_move.start)
5819 ..buffer.anchor_after(range_to_move.end),
5820 ) {
5821 let mut start = fold.range.start.to_point(&buffer);
5822 let mut end = fold.range.end.to_point(&buffer);
5823 start.row += row_delta;
5824 end.row += row_delta;
5825 refold_ranges.push(start..end);
5826 }
5827 }
5828 }
5829
5830 // If we didn't move line(s), preserve the existing selections
5831 new_selections.append(&mut contiguous_row_selections);
5832 }
5833
5834 self.transact(cx, |this, cx| {
5835 this.unfold_ranges(unfold_ranges, true, true, cx);
5836 this.buffer.update(cx, |buffer, cx| {
5837 for (range, text) in edits {
5838 buffer.edit([(range, text)], None, cx);
5839 }
5840 });
5841 this.fold_ranges(refold_ranges, true, cx);
5842 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5843 });
5844 }
5845
5846 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5847 let text_layout_details = &self.text_layout_details(cx);
5848 self.transact(cx, |this, cx| {
5849 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5850 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5851 let line_mode = s.line_mode;
5852 s.move_with(|display_map, selection| {
5853 if !selection.is_empty() || line_mode {
5854 return;
5855 }
5856
5857 let mut head = selection.head();
5858 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5859 if head.column() == display_map.line_len(head.row()) {
5860 transpose_offset = display_map
5861 .buffer_snapshot
5862 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5863 }
5864
5865 if transpose_offset == 0 {
5866 return;
5867 }
5868
5869 *head.column_mut() += 1;
5870 head = display_map.clip_point(head, Bias::Right);
5871 let goal = SelectionGoal::HorizontalPosition(
5872 display_map
5873 .x_for_display_point(head, &text_layout_details)
5874 .into(),
5875 );
5876 selection.collapse_to(head, goal);
5877
5878 let transpose_start = display_map
5879 .buffer_snapshot
5880 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5881 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5882 let transpose_end = display_map
5883 .buffer_snapshot
5884 .clip_offset(transpose_offset + 1, Bias::Right);
5885 if let Some(ch) =
5886 display_map.buffer_snapshot.chars_at(transpose_start).next()
5887 {
5888 edits.push((transpose_start..transpose_offset, String::new()));
5889 edits.push((transpose_end..transpose_end, ch.to_string()));
5890 }
5891 }
5892 });
5893 edits
5894 });
5895 this.buffer
5896 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5897 let selections = this.selections.all::<usize>(cx);
5898 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5899 s.select(selections);
5900 });
5901 });
5902 }
5903
5904 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5905 let mut text = String::new();
5906 let buffer = self.buffer.read(cx).snapshot(cx);
5907 let mut selections = self.selections.all::<Point>(cx);
5908 let mut clipboard_selections = Vec::with_capacity(selections.len());
5909 {
5910 let max_point = buffer.max_point();
5911 let mut is_first = true;
5912 for selection in &mut selections {
5913 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5914 if is_entire_line {
5915 selection.start = Point::new(selection.start.row, 0);
5916 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5917 selection.goal = SelectionGoal::None;
5918 }
5919 if is_first {
5920 is_first = false;
5921 } else {
5922 text += "\n";
5923 }
5924 let mut len = 0;
5925 for chunk in buffer.text_for_range(selection.start..selection.end) {
5926 text.push_str(chunk);
5927 len += chunk.len();
5928 }
5929 clipboard_selections.push(ClipboardSelection {
5930 len,
5931 is_entire_line,
5932 first_line_indent: buffer
5933 .indent_size_for_line(MultiBufferRow(selection.start.row))
5934 .len,
5935 });
5936 }
5937 }
5938
5939 self.transact(cx, |this, cx| {
5940 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5941 s.select(selections);
5942 });
5943 this.insert("", cx);
5944 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5945 });
5946 }
5947
5948 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5949 let selections = self.selections.all::<Point>(cx);
5950 let buffer = self.buffer.read(cx).read(cx);
5951 let mut text = String::new();
5952
5953 let mut clipboard_selections = Vec::with_capacity(selections.len());
5954 {
5955 let max_point = buffer.max_point();
5956 let mut is_first = true;
5957 for selection in selections.iter() {
5958 let mut start = selection.start;
5959 let mut end = selection.end;
5960 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5961 if is_entire_line {
5962 start = Point::new(start.row, 0);
5963 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5964 }
5965 if is_first {
5966 is_first = false;
5967 } else {
5968 text += "\n";
5969 }
5970 let mut len = 0;
5971 for chunk in buffer.text_for_range(start..end) {
5972 text.push_str(chunk);
5973 len += chunk.len();
5974 }
5975 clipboard_selections.push(ClipboardSelection {
5976 len,
5977 is_entire_line,
5978 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
5979 });
5980 }
5981 }
5982
5983 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5984 }
5985
5986 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5987 if self.read_only(cx) {
5988 return;
5989 }
5990
5991 self.transact(cx, |this, cx| {
5992 if let Some(item) = cx.read_from_clipboard() {
5993 let clipboard_text = Cow::Borrowed(item.text());
5994 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5995 let old_selections = this.selections.all::<usize>(cx);
5996 let all_selections_were_entire_line =
5997 clipboard_selections.iter().all(|s| s.is_entire_line);
5998 let first_selection_indent_column =
5999 clipboard_selections.first().map(|s| s.first_line_indent);
6000 if clipboard_selections.len() != old_selections.len() {
6001 clipboard_selections.drain(..);
6002 }
6003
6004 this.buffer.update(cx, |buffer, cx| {
6005 let snapshot = buffer.read(cx);
6006 let mut start_offset = 0;
6007 let mut edits = Vec::new();
6008 let mut original_indent_columns = Vec::new();
6009 let line_mode = this.selections.line_mode;
6010 for (ix, selection) in old_selections.iter().enumerate() {
6011 let to_insert;
6012 let entire_line;
6013 let original_indent_column;
6014 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6015 let end_offset = start_offset + clipboard_selection.len;
6016 to_insert = &clipboard_text[start_offset..end_offset];
6017 entire_line = clipboard_selection.is_entire_line;
6018 start_offset = end_offset + 1;
6019 original_indent_column =
6020 Some(clipboard_selection.first_line_indent);
6021 } else {
6022 to_insert = clipboard_text.as_str();
6023 entire_line = all_selections_were_entire_line;
6024 original_indent_column = first_selection_indent_column
6025 }
6026
6027 // If the corresponding selection was empty when this slice of the
6028 // clipboard text was written, then the entire line containing the
6029 // selection was copied. If this selection is also currently empty,
6030 // then paste the line before the current line of the buffer.
6031 let range = if selection.is_empty() && !line_mode && entire_line {
6032 let column = selection.start.to_point(&snapshot).column as usize;
6033 let line_start = selection.start - column;
6034 line_start..line_start
6035 } else {
6036 selection.range()
6037 };
6038
6039 edits.push((range, to_insert));
6040 original_indent_columns.extend(original_indent_column);
6041 }
6042 drop(snapshot);
6043
6044 buffer.edit(
6045 edits,
6046 Some(AutoindentMode::Block {
6047 original_indent_columns,
6048 }),
6049 cx,
6050 );
6051 });
6052
6053 let selections = this.selections.all::<usize>(cx);
6054 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6055 } else {
6056 this.insert(&clipboard_text, cx);
6057 }
6058 }
6059 });
6060 }
6061
6062 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6063 if self.read_only(cx) {
6064 return;
6065 }
6066
6067 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6068 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6069 self.change_selections(None, cx, |s| {
6070 s.select_anchors(selections.to_vec());
6071 });
6072 }
6073 self.request_autoscroll(Autoscroll::fit(), cx);
6074 self.unmark_text(cx);
6075 self.refresh_inline_completion(true, cx);
6076 cx.emit(EditorEvent::Edited);
6077 cx.emit(EditorEvent::TransactionUndone {
6078 transaction_id: tx_id,
6079 });
6080 }
6081 }
6082
6083 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6084 if self.read_only(cx) {
6085 return;
6086 }
6087
6088 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6089 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6090 {
6091 self.change_selections(None, cx, |s| {
6092 s.select_anchors(selections.to_vec());
6093 });
6094 }
6095 self.request_autoscroll(Autoscroll::fit(), cx);
6096 self.unmark_text(cx);
6097 self.refresh_inline_completion(true, cx);
6098 cx.emit(EditorEvent::Edited);
6099 }
6100 }
6101
6102 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6103 self.buffer
6104 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6105 }
6106
6107 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6108 self.buffer
6109 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6110 }
6111
6112 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6114 let line_mode = s.line_mode;
6115 s.move_with(|map, selection| {
6116 let cursor = if selection.is_empty() && !line_mode {
6117 movement::left(map, selection.start)
6118 } else {
6119 selection.start
6120 };
6121 selection.collapse_to(cursor, SelectionGoal::None);
6122 });
6123 })
6124 }
6125
6126 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6127 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6128 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6129 })
6130 }
6131
6132 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6134 let line_mode = s.line_mode;
6135 s.move_with(|map, selection| {
6136 let cursor = if selection.is_empty() && !line_mode {
6137 movement::right(map, selection.end)
6138 } else {
6139 selection.end
6140 };
6141 selection.collapse_to(cursor, SelectionGoal::None)
6142 });
6143 })
6144 }
6145
6146 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6147 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6148 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6149 })
6150 }
6151
6152 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6153 if self.take_rename(true, cx).is_some() {
6154 return;
6155 }
6156
6157 if matches!(self.mode, EditorMode::SingleLine) {
6158 cx.propagate();
6159 return;
6160 }
6161
6162 let text_layout_details = &self.text_layout_details(cx);
6163
6164 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6165 let line_mode = s.line_mode;
6166 s.move_with(|map, selection| {
6167 if !selection.is_empty() && !line_mode {
6168 selection.goal = SelectionGoal::None;
6169 }
6170 let (cursor, goal) = movement::up(
6171 map,
6172 selection.start,
6173 selection.goal,
6174 false,
6175 &text_layout_details,
6176 );
6177 selection.collapse_to(cursor, goal);
6178 });
6179 })
6180 }
6181
6182 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6183 if self.take_rename(true, cx).is_some() {
6184 return;
6185 }
6186
6187 if matches!(self.mode, EditorMode::SingleLine) {
6188 cx.propagate();
6189 return;
6190 }
6191
6192 let text_layout_details = &self.text_layout_details(cx);
6193
6194 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6195 let line_mode = s.line_mode;
6196 s.move_with(|map, selection| {
6197 if !selection.is_empty() && !line_mode {
6198 selection.goal = SelectionGoal::None;
6199 }
6200 let (cursor, goal) = movement::up_by_rows(
6201 map,
6202 selection.start,
6203 action.lines,
6204 selection.goal,
6205 false,
6206 &text_layout_details,
6207 );
6208 selection.collapse_to(cursor, goal);
6209 });
6210 })
6211 }
6212
6213 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6214 if self.take_rename(true, cx).is_some() {
6215 return;
6216 }
6217
6218 if matches!(self.mode, EditorMode::SingleLine) {
6219 cx.propagate();
6220 return;
6221 }
6222
6223 let text_layout_details = &self.text_layout_details(cx);
6224
6225 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6226 let line_mode = s.line_mode;
6227 s.move_with(|map, selection| {
6228 if !selection.is_empty() && !line_mode {
6229 selection.goal = SelectionGoal::None;
6230 }
6231 let (cursor, goal) = movement::down_by_rows(
6232 map,
6233 selection.start,
6234 action.lines,
6235 selection.goal,
6236 false,
6237 &text_layout_details,
6238 );
6239 selection.collapse_to(cursor, goal);
6240 });
6241 })
6242 }
6243
6244 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6245 let text_layout_details = &self.text_layout_details(cx);
6246 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6247 s.move_heads_with(|map, head, goal| {
6248 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6249 })
6250 })
6251 }
6252
6253 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6254 let text_layout_details = &self.text_layout_details(cx);
6255 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6256 s.move_heads_with(|map, head, goal| {
6257 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6258 })
6259 })
6260 }
6261
6262 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6263 if self.take_rename(true, cx).is_some() {
6264 return;
6265 }
6266
6267 if matches!(self.mode, EditorMode::SingleLine) {
6268 cx.propagate();
6269 return;
6270 }
6271
6272 let row_count = if let Some(row_count) = self.visible_line_count() {
6273 row_count as u32 - 1
6274 } else {
6275 return;
6276 };
6277
6278 let autoscroll = if action.center_cursor {
6279 Autoscroll::center()
6280 } else {
6281 Autoscroll::fit()
6282 };
6283
6284 let text_layout_details = &self.text_layout_details(cx);
6285
6286 self.change_selections(Some(autoscroll), cx, |s| {
6287 let line_mode = s.line_mode;
6288 s.move_with(|map, selection| {
6289 if !selection.is_empty() && !line_mode {
6290 selection.goal = SelectionGoal::None;
6291 }
6292 let (cursor, goal) = movement::up_by_rows(
6293 map,
6294 selection.end,
6295 row_count,
6296 selection.goal,
6297 false,
6298 &text_layout_details,
6299 );
6300 selection.collapse_to(cursor, goal);
6301 });
6302 });
6303 }
6304
6305 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6306 let text_layout_details = &self.text_layout_details(cx);
6307 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6308 s.move_heads_with(|map, head, goal| {
6309 movement::up(map, head, goal, false, &text_layout_details)
6310 })
6311 })
6312 }
6313
6314 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6315 self.take_rename(true, cx);
6316
6317 if self.mode == EditorMode::SingleLine {
6318 cx.propagate();
6319 return;
6320 }
6321
6322 let text_layout_details = &self.text_layout_details(cx);
6323 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6324 let line_mode = s.line_mode;
6325 s.move_with(|map, selection| {
6326 if !selection.is_empty() && !line_mode {
6327 selection.goal = SelectionGoal::None;
6328 }
6329 let (cursor, goal) = movement::down(
6330 map,
6331 selection.end,
6332 selection.goal,
6333 false,
6334 &text_layout_details,
6335 );
6336 selection.collapse_to(cursor, goal);
6337 });
6338 });
6339 }
6340
6341 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6342 if self.take_rename(true, cx).is_some() {
6343 return;
6344 }
6345
6346 if self
6347 .context_menu
6348 .write()
6349 .as_mut()
6350 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6351 .unwrap_or(false)
6352 {
6353 return;
6354 }
6355
6356 if matches!(self.mode, EditorMode::SingleLine) {
6357 cx.propagate();
6358 return;
6359 }
6360
6361 let row_count = if let Some(row_count) = self.visible_line_count() {
6362 row_count as u32 - 1
6363 } else {
6364 return;
6365 };
6366
6367 let autoscroll = if action.center_cursor {
6368 Autoscroll::center()
6369 } else {
6370 Autoscroll::fit()
6371 };
6372
6373 let text_layout_details = &self.text_layout_details(cx);
6374 self.change_selections(Some(autoscroll), cx, |s| {
6375 let line_mode = s.line_mode;
6376 s.move_with(|map, selection| {
6377 if !selection.is_empty() && !line_mode {
6378 selection.goal = SelectionGoal::None;
6379 }
6380 let (cursor, goal) = movement::down_by_rows(
6381 map,
6382 selection.end,
6383 row_count,
6384 selection.goal,
6385 false,
6386 &text_layout_details,
6387 );
6388 selection.collapse_to(cursor, goal);
6389 });
6390 });
6391 }
6392
6393 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6394 let text_layout_details = &self.text_layout_details(cx);
6395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6396 s.move_heads_with(|map, head, goal| {
6397 movement::down(map, head, goal, false, &text_layout_details)
6398 })
6399 });
6400 }
6401
6402 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6403 if let Some(context_menu) = self.context_menu.write().as_mut() {
6404 context_menu.select_first(self.project.as_ref(), cx);
6405 }
6406 }
6407
6408 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6409 if let Some(context_menu) = self.context_menu.write().as_mut() {
6410 context_menu.select_prev(self.project.as_ref(), cx);
6411 }
6412 }
6413
6414 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6415 if let Some(context_menu) = self.context_menu.write().as_mut() {
6416 context_menu.select_next(self.project.as_ref(), cx);
6417 }
6418 }
6419
6420 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6421 if let Some(context_menu) = self.context_menu.write().as_mut() {
6422 context_menu.select_last(self.project.as_ref(), cx);
6423 }
6424 }
6425
6426 pub fn move_to_previous_word_start(
6427 &mut self,
6428 _: &MoveToPreviousWordStart,
6429 cx: &mut ViewContext<Self>,
6430 ) {
6431 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6432 s.move_cursors_with(|map, head, _| {
6433 (
6434 movement::previous_word_start(map, head),
6435 SelectionGoal::None,
6436 )
6437 });
6438 })
6439 }
6440
6441 pub fn move_to_previous_subword_start(
6442 &mut self,
6443 _: &MoveToPreviousSubwordStart,
6444 cx: &mut ViewContext<Self>,
6445 ) {
6446 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6447 s.move_cursors_with(|map, head, _| {
6448 (
6449 movement::previous_subword_start(map, head),
6450 SelectionGoal::None,
6451 )
6452 });
6453 })
6454 }
6455
6456 pub fn select_to_previous_word_start(
6457 &mut self,
6458 _: &SelectToPreviousWordStart,
6459 cx: &mut ViewContext<Self>,
6460 ) {
6461 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6462 s.move_heads_with(|map, head, _| {
6463 (
6464 movement::previous_word_start(map, head),
6465 SelectionGoal::None,
6466 )
6467 });
6468 })
6469 }
6470
6471 pub fn select_to_previous_subword_start(
6472 &mut self,
6473 _: &SelectToPreviousSubwordStart,
6474 cx: &mut ViewContext<Self>,
6475 ) {
6476 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6477 s.move_heads_with(|map, head, _| {
6478 (
6479 movement::previous_subword_start(map, head),
6480 SelectionGoal::None,
6481 )
6482 });
6483 })
6484 }
6485
6486 pub fn delete_to_previous_word_start(
6487 &mut self,
6488 _: &DeleteToPreviousWordStart,
6489 cx: &mut ViewContext<Self>,
6490 ) {
6491 self.transact(cx, |this, cx| {
6492 this.select_autoclose_pair(cx);
6493 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6494 let line_mode = s.line_mode;
6495 s.move_with(|map, selection| {
6496 if selection.is_empty() && !line_mode {
6497 let cursor = movement::previous_word_start(map, selection.head());
6498 selection.set_head(cursor, SelectionGoal::None);
6499 }
6500 });
6501 });
6502 this.insert("", cx);
6503 });
6504 }
6505
6506 pub fn delete_to_previous_subword_start(
6507 &mut self,
6508 _: &DeleteToPreviousSubwordStart,
6509 cx: &mut ViewContext<Self>,
6510 ) {
6511 self.transact(cx, |this, cx| {
6512 this.select_autoclose_pair(cx);
6513 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6514 let line_mode = s.line_mode;
6515 s.move_with(|map, selection| {
6516 if selection.is_empty() && !line_mode {
6517 let cursor = movement::previous_subword_start(map, selection.head());
6518 selection.set_head(cursor, SelectionGoal::None);
6519 }
6520 });
6521 });
6522 this.insert("", cx);
6523 });
6524 }
6525
6526 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6527 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6528 s.move_cursors_with(|map, head, _| {
6529 (movement::next_word_end(map, head), SelectionGoal::None)
6530 });
6531 })
6532 }
6533
6534 pub fn move_to_next_subword_end(
6535 &mut self,
6536 _: &MoveToNextSubwordEnd,
6537 cx: &mut ViewContext<Self>,
6538 ) {
6539 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6540 s.move_cursors_with(|map, head, _| {
6541 (movement::next_subword_end(map, head), SelectionGoal::None)
6542 });
6543 })
6544 }
6545
6546 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6548 s.move_heads_with(|map, head, _| {
6549 (movement::next_word_end(map, head), SelectionGoal::None)
6550 });
6551 })
6552 }
6553
6554 pub fn select_to_next_subword_end(
6555 &mut self,
6556 _: &SelectToNextSubwordEnd,
6557 cx: &mut ViewContext<Self>,
6558 ) {
6559 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6560 s.move_heads_with(|map, head, _| {
6561 (movement::next_subword_end(map, head), SelectionGoal::None)
6562 });
6563 })
6564 }
6565
6566 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6567 self.transact(cx, |this, cx| {
6568 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6569 let line_mode = s.line_mode;
6570 s.move_with(|map, selection| {
6571 if selection.is_empty() && !line_mode {
6572 let cursor = movement::next_word_end(map, selection.head());
6573 selection.set_head(cursor, SelectionGoal::None);
6574 }
6575 });
6576 });
6577 this.insert("", cx);
6578 });
6579 }
6580
6581 pub fn delete_to_next_subword_end(
6582 &mut self,
6583 _: &DeleteToNextSubwordEnd,
6584 cx: &mut ViewContext<Self>,
6585 ) {
6586 self.transact(cx, |this, cx| {
6587 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6588 s.move_with(|map, selection| {
6589 if selection.is_empty() {
6590 let cursor = movement::next_subword_end(map, selection.head());
6591 selection.set_head(cursor, SelectionGoal::None);
6592 }
6593 });
6594 });
6595 this.insert("", cx);
6596 });
6597 }
6598
6599 pub fn move_to_beginning_of_line(
6600 &mut self,
6601 action: &MoveToBeginningOfLine,
6602 cx: &mut ViewContext<Self>,
6603 ) {
6604 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6605 s.move_cursors_with(|map, head, _| {
6606 (
6607 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6608 SelectionGoal::None,
6609 )
6610 });
6611 })
6612 }
6613
6614 pub fn select_to_beginning_of_line(
6615 &mut self,
6616 action: &SelectToBeginningOfLine,
6617 cx: &mut ViewContext<Self>,
6618 ) {
6619 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6620 s.move_heads_with(|map, head, _| {
6621 (
6622 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6623 SelectionGoal::None,
6624 )
6625 });
6626 });
6627 }
6628
6629 pub fn delete_to_beginning_of_line(
6630 &mut self,
6631 _: &DeleteToBeginningOfLine,
6632 cx: &mut ViewContext<Self>,
6633 ) {
6634 self.transact(cx, |this, cx| {
6635 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6636 s.move_with(|_, selection| {
6637 selection.reversed = true;
6638 });
6639 });
6640
6641 this.select_to_beginning_of_line(
6642 &SelectToBeginningOfLine {
6643 stop_at_soft_wraps: false,
6644 },
6645 cx,
6646 );
6647 this.backspace(&Backspace, cx);
6648 });
6649 }
6650
6651 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6652 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6653 s.move_cursors_with(|map, head, _| {
6654 (
6655 movement::line_end(map, head, action.stop_at_soft_wraps),
6656 SelectionGoal::None,
6657 )
6658 });
6659 })
6660 }
6661
6662 pub fn select_to_end_of_line(
6663 &mut self,
6664 action: &SelectToEndOfLine,
6665 cx: &mut ViewContext<Self>,
6666 ) {
6667 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6668 s.move_heads_with(|map, head, _| {
6669 (
6670 movement::line_end(map, head, action.stop_at_soft_wraps),
6671 SelectionGoal::None,
6672 )
6673 });
6674 })
6675 }
6676
6677 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6678 self.transact(cx, |this, cx| {
6679 this.select_to_end_of_line(
6680 &SelectToEndOfLine {
6681 stop_at_soft_wraps: false,
6682 },
6683 cx,
6684 );
6685 this.delete(&Delete, cx);
6686 });
6687 }
6688
6689 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6690 self.transact(cx, |this, cx| {
6691 this.select_to_end_of_line(
6692 &SelectToEndOfLine {
6693 stop_at_soft_wraps: false,
6694 },
6695 cx,
6696 );
6697 this.cut(&Cut, cx);
6698 });
6699 }
6700
6701 pub fn move_to_start_of_paragraph(
6702 &mut self,
6703 _: &MoveToStartOfParagraph,
6704 cx: &mut ViewContext<Self>,
6705 ) {
6706 if matches!(self.mode, EditorMode::SingleLine) {
6707 cx.propagate();
6708 return;
6709 }
6710
6711 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6712 s.move_with(|map, selection| {
6713 selection.collapse_to(
6714 movement::start_of_paragraph(map, selection.head(), 1),
6715 SelectionGoal::None,
6716 )
6717 });
6718 })
6719 }
6720
6721 pub fn move_to_end_of_paragraph(
6722 &mut self,
6723 _: &MoveToEndOfParagraph,
6724 cx: &mut ViewContext<Self>,
6725 ) {
6726 if matches!(self.mode, EditorMode::SingleLine) {
6727 cx.propagate();
6728 return;
6729 }
6730
6731 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6732 s.move_with(|map, selection| {
6733 selection.collapse_to(
6734 movement::end_of_paragraph(map, selection.head(), 1),
6735 SelectionGoal::None,
6736 )
6737 });
6738 })
6739 }
6740
6741 pub fn select_to_start_of_paragraph(
6742 &mut self,
6743 _: &SelectToStartOfParagraph,
6744 cx: &mut ViewContext<Self>,
6745 ) {
6746 if matches!(self.mode, EditorMode::SingleLine) {
6747 cx.propagate();
6748 return;
6749 }
6750
6751 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6752 s.move_heads_with(|map, head, _| {
6753 (
6754 movement::start_of_paragraph(map, head, 1),
6755 SelectionGoal::None,
6756 )
6757 });
6758 })
6759 }
6760
6761 pub fn select_to_end_of_paragraph(
6762 &mut self,
6763 _: &SelectToEndOfParagraph,
6764 cx: &mut ViewContext<Self>,
6765 ) {
6766 if matches!(self.mode, EditorMode::SingleLine) {
6767 cx.propagate();
6768 return;
6769 }
6770
6771 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6772 s.move_heads_with(|map, head, _| {
6773 (
6774 movement::end_of_paragraph(map, head, 1),
6775 SelectionGoal::None,
6776 )
6777 });
6778 })
6779 }
6780
6781 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6782 if matches!(self.mode, EditorMode::SingleLine) {
6783 cx.propagate();
6784 return;
6785 }
6786
6787 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6788 s.select_ranges(vec![0..0]);
6789 });
6790 }
6791
6792 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6793 let mut selection = self.selections.last::<Point>(cx);
6794 selection.set_head(Point::zero(), SelectionGoal::None);
6795
6796 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6797 s.select(vec![selection]);
6798 });
6799 }
6800
6801 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6802 if matches!(self.mode, EditorMode::SingleLine) {
6803 cx.propagate();
6804 return;
6805 }
6806
6807 let cursor = self.buffer.read(cx).read(cx).len();
6808 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6809 s.select_ranges(vec![cursor..cursor])
6810 });
6811 }
6812
6813 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6814 self.nav_history = nav_history;
6815 }
6816
6817 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6818 self.nav_history.as_ref()
6819 }
6820
6821 fn push_to_nav_history(
6822 &mut self,
6823 cursor_anchor: Anchor,
6824 new_position: Option<Point>,
6825 cx: &mut ViewContext<Self>,
6826 ) {
6827 if let Some(nav_history) = self.nav_history.as_mut() {
6828 let buffer = self.buffer.read(cx).read(cx);
6829 let cursor_position = cursor_anchor.to_point(&buffer);
6830 let scroll_state = self.scroll_manager.anchor();
6831 let scroll_top_row = scroll_state.top_row(&buffer);
6832 drop(buffer);
6833
6834 if let Some(new_position) = new_position {
6835 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6836 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6837 return;
6838 }
6839 }
6840
6841 nav_history.push(
6842 Some(NavigationData {
6843 cursor_anchor,
6844 cursor_position,
6845 scroll_anchor: scroll_state,
6846 scroll_top_row,
6847 }),
6848 cx,
6849 );
6850 }
6851 }
6852
6853 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6854 let buffer = self.buffer.read(cx).snapshot(cx);
6855 let mut selection = self.selections.first::<usize>(cx);
6856 selection.set_head(buffer.len(), SelectionGoal::None);
6857 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6858 s.select(vec![selection]);
6859 });
6860 }
6861
6862 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6863 let end = self.buffer.read(cx).read(cx).len();
6864 self.change_selections(None, cx, |s| {
6865 s.select_ranges(vec![0..end]);
6866 });
6867 }
6868
6869 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6870 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6871 let mut selections = self.selections.all::<Point>(cx);
6872 let max_point = display_map.buffer_snapshot.max_point();
6873 for selection in &mut selections {
6874 let rows = selection.spanned_rows(true, &display_map);
6875 selection.start = Point::new(rows.start.0, 0);
6876 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
6877 selection.reversed = false;
6878 }
6879 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6880 s.select(selections);
6881 });
6882 }
6883
6884 pub fn split_selection_into_lines(
6885 &mut self,
6886 _: &SplitSelectionIntoLines,
6887 cx: &mut ViewContext<Self>,
6888 ) {
6889 let mut to_unfold = Vec::new();
6890 let mut new_selection_ranges = Vec::new();
6891 {
6892 let selections = self.selections.all::<Point>(cx);
6893 let buffer = self.buffer.read(cx).read(cx);
6894 for selection in selections {
6895 for row in selection.start.row..selection.end.row {
6896 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
6897 new_selection_ranges.push(cursor..cursor);
6898 }
6899 new_selection_ranges.push(selection.end..selection.end);
6900 to_unfold.push(selection.start..selection.end);
6901 }
6902 }
6903 self.unfold_ranges(to_unfold, true, true, cx);
6904 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6905 s.select_ranges(new_selection_ranges);
6906 });
6907 }
6908
6909 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6910 self.add_selection(true, cx);
6911 }
6912
6913 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6914 self.add_selection(false, cx);
6915 }
6916
6917 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6918 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6919 let mut selections = self.selections.all::<Point>(cx);
6920 let text_layout_details = self.text_layout_details(cx);
6921 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6922 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6923 let range = oldest_selection.display_range(&display_map).sorted();
6924
6925 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6926 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6927 let positions = start_x.min(end_x)..start_x.max(end_x);
6928
6929 selections.clear();
6930 let mut stack = Vec::new();
6931 for row in range.start.row().0..=range.end.row().0 {
6932 if let Some(selection) = self.selections.build_columnar_selection(
6933 &display_map,
6934 DisplayRow(row),
6935 &positions,
6936 oldest_selection.reversed,
6937 &text_layout_details,
6938 ) {
6939 stack.push(selection.id);
6940 selections.push(selection);
6941 }
6942 }
6943
6944 if above {
6945 stack.reverse();
6946 }
6947
6948 AddSelectionsState { above, stack }
6949 });
6950
6951 let last_added_selection = *state.stack.last().unwrap();
6952 let mut new_selections = Vec::new();
6953 if above == state.above {
6954 let end_row = if above {
6955 DisplayRow(0)
6956 } else {
6957 display_map.max_point().row()
6958 };
6959
6960 'outer: for selection in selections {
6961 if selection.id == last_added_selection {
6962 let range = selection.display_range(&display_map).sorted();
6963 debug_assert_eq!(range.start.row(), range.end.row());
6964 let mut row = range.start.row();
6965 let positions =
6966 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6967 px(start)..px(end)
6968 } else {
6969 let start_x =
6970 display_map.x_for_display_point(range.start, &text_layout_details);
6971 let end_x =
6972 display_map.x_for_display_point(range.end, &text_layout_details);
6973 start_x.min(end_x)..start_x.max(end_x)
6974 };
6975
6976 while row != end_row {
6977 if above {
6978 row.0 -= 1;
6979 } else {
6980 row.0 += 1;
6981 }
6982
6983 if let Some(new_selection) = self.selections.build_columnar_selection(
6984 &display_map,
6985 row,
6986 &positions,
6987 selection.reversed,
6988 &text_layout_details,
6989 ) {
6990 state.stack.push(new_selection.id);
6991 if above {
6992 new_selections.push(new_selection);
6993 new_selections.push(selection);
6994 } else {
6995 new_selections.push(selection);
6996 new_selections.push(new_selection);
6997 }
6998
6999 continue 'outer;
7000 }
7001 }
7002 }
7003
7004 new_selections.push(selection);
7005 }
7006 } else {
7007 new_selections = selections;
7008 new_selections.retain(|s| s.id != last_added_selection);
7009 state.stack.pop();
7010 }
7011
7012 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7013 s.select(new_selections);
7014 });
7015 if state.stack.len() > 1 {
7016 self.add_selections_state = Some(state);
7017 }
7018 }
7019
7020 pub fn select_next_match_internal(
7021 &mut self,
7022 display_map: &DisplaySnapshot,
7023 replace_newest: bool,
7024 autoscroll: Option<Autoscroll>,
7025 cx: &mut ViewContext<Self>,
7026 ) -> Result<()> {
7027 fn select_next_match_ranges(
7028 this: &mut Editor,
7029 range: Range<usize>,
7030 replace_newest: bool,
7031 auto_scroll: Option<Autoscroll>,
7032 cx: &mut ViewContext<Editor>,
7033 ) {
7034 this.unfold_ranges([range.clone()], false, true, cx);
7035 this.change_selections(auto_scroll, cx, |s| {
7036 if replace_newest {
7037 s.delete(s.newest_anchor().id);
7038 }
7039 s.insert_range(range.clone());
7040 });
7041 }
7042
7043 let buffer = &display_map.buffer_snapshot;
7044 let mut selections = self.selections.all::<usize>(cx);
7045 if let Some(mut select_next_state) = self.select_next_state.take() {
7046 let query = &select_next_state.query;
7047 if !select_next_state.done {
7048 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7049 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7050 let mut next_selected_range = None;
7051
7052 let bytes_after_last_selection =
7053 buffer.bytes_in_range(last_selection.end..buffer.len());
7054 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7055 let query_matches = query
7056 .stream_find_iter(bytes_after_last_selection)
7057 .map(|result| (last_selection.end, result))
7058 .chain(
7059 query
7060 .stream_find_iter(bytes_before_first_selection)
7061 .map(|result| (0, result)),
7062 );
7063
7064 for (start_offset, query_match) in query_matches {
7065 let query_match = query_match.unwrap(); // can only fail due to I/O
7066 let offset_range =
7067 start_offset + query_match.start()..start_offset + query_match.end();
7068 let display_range = offset_range.start.to_display_point(&display_map)
7069 ..offset_range.end.to_display_point(&display_map);
7070
7071 if !select_next_state.wordwise
7072 || (!movement::is_inside_word(&display_map, display_range.start)
7073 && !movement::is_inside_word(&display_map, display_range.end))
7074 {
7075 // TODO: This is n^2, because we might check all the selections
7076 if !selections
7077 .iter()
7078 .any(|selection| selection.range().overlaps(&offset_range))
7079 {
7080 next_selected_range = Some(offset_range);
7081 break;
7082 }
7083 }
7084 }
7085
7086 if let Some(next_selected_range) = next_selected_range {
7087 select_next_match_ranges(
7088 self,
7089 next_selected_range,
7090 replace_newest,
7091 autoscroll,
7092 cx,
7093 );
7094 } else {
7095 select_next_state.done = true;
7096 }
7097 }
7098
7099 self.select_next_state = Some(select_next_state);
7100 } else {
7101 let mut only_carets = true;
7102 let mut same_text_selected = true;
7103 let mut selected_text = None;
7104
7105 let mut selections_iter = selections.iter().peekable();
7106 while let Some(selection) = selections_iter.next() {
7107 if selection.start != selection.end {
7108 only_carets = false;
7109 }
7110
7111 if same_text_selected {
7112 if selected_text.is_none() {
7113 selected_text =
7114 Some(buffer.text_for_range(selection.range()).collect::<String>());
7115 }
7116
7117 if let Some(next_selection) = selections_iter.peek() {
7118 if next_selection.range().len() == selection.range().len() {
7119 let next_selected_text = buffer
7120 .text_for_range(next_selection.range())
7121 .collect::<String>();
7122 if Some(next_selected_text) != selected_text {
7123 same_text_selected = false;
7124 selected_text = None;
7125 }
7126 } else {
7127 same_text_selected = false;
7128 selected_text = None;
7129 }
7130 }
7131 }
7132 }
7133
7134 if only_carets {
7135 for selection in &mut selections {
7136 let word_range = movement::surrounding_word(
7137 &display_map,
7138 selection.start.to_display_point(&display_map),
7139 );
7140 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7141 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7142 selection.goal = SelectionGoal::None;
7143 selection.reversed = false;
7144 select_next_match_ranges(
7145 self,
7146 selection.start..selection.end,
7147 replace_newest,
7148 autoscroll,
7149 cx,
7150 );
7151 }
7152
7153 if selections.len() == 1 {
7154 let selection = selections
7155 .last()
7156 .expect("ensured that there's only one selection");
7157 let query = buffer
7158 .text_for_range(selection.start..selection.end)
7159 .collect::<String>();
7160 let is_empty = query.is_empty();
7161 let select_state = SelectNextState {
7162 query: AhoCorasick::new(&[query])?,
7163 wordwise: true,
7164 done: is_empty,
7165 };
7166 self.select_next_state = Some(select_state);
7167 } else {
7168 self.select_next_state = None;
7169 }
7170 } else if let Some(selected_text) = selected_text {
7171 self.select_next_state = Some(SelectNextState {
7172 query: AhoCorasick::new(&[selected_text])?,
7173 wordwise: false,
7174 done: false,
7175 });
7176 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7177 }
7178 }
7179 Ok(())
7180 }
7181
7182 pub fn select_all_matches(
7183 &mut self,
7184 _action: &SelectAllMatches,
7185 cx: &mut ViewContext<Self>,
7186 ) -> Result<()> {
7187 self.push_to_selection_history();
7188 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7189
7190 self.select_next_match_internal(&display_map, false, None, cx)?;
7191 let Some(select_next_state) = self.select_next_state.as_mut() else {
7192 return Ok(());
7193 };
7194 if select_next_state.done {
7195 return Ok(());
7196 }
7197
7198 let mut new_selections = self.selections.all::<usize>(cx);
7199
7200 let buffer = &display_map.buffer_snapshot;
7201 let query_matches = select_next_state
7202 .query
7203 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7204
7205 for query_match in query_matches {
7206 let query_match = query_match.unwrap(); // can only fail due to I/O
7207 let offset_range = query_match.start()..query_match.end();
7208 let display_range = offset_range.start.to_display_point(&display_map)
7209 ..offset_range.end.to_display_point(&display_map);
7210
7211 if !select_next_state.wordwise
7212 || (!movement::is_inside_word(&display_map, display_range.start)
7213 && !movement::is_inside_word(&display_map, display_range.end))
7214 {
7215 self.selections.change_with(cx, |selections| {
7216 new_selections.push(Selection {
7217 id: selections.new_selection_id(),
7218 start: offset_range.start,
7219 end: offset_range.end,
7220 reversed: false,
7221 goal: SelectionGoal::None,
7222 });
7223 });
7224 }
7225 }
7226
7227 new_selections.sort_by_key(|selection| selection.start);
7228 let mut ix = 0;
7229 while ix + 1 < new_selections.len() {
7230 let current_selection = &new_selections[ix];
7231 let next_selection = &new_selections[ix + 1];
7232 if current_selection.range().overlaps(&next_selection.range()) {
7233 if current_selection.id < next_selection.id {
7234 new_selections.remove(ix + 1);
7235 } else {
7236 new_selections.remove(ix);
7237 }
7238 } else {
7239 ix += 1;
7240 }
7241 }
7242
7243 select_next_state.done = true;
7244 self.unfold_ranges(
7245 new_selections.iter().map(|selection| selection.range()),
7246 false,
7247 false,
7248 cx,
7249 );
7250 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7251 selections.select(new_selections)
7252 });
7253
7254 Ok(())
7255 }
7256
7257 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7258 self.push_to_selection_history();
7259 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7260 self.select_next_match_internal(
7261 &display_map,
7262 action.replace_newest,
7263 Some(Autoscroll::newest()),
7264 cx,
7265 )?;
7266 Ok(())
7267 }
7268
7269 pub fn select_previous(
7270 &mut self,
7271 action: &SelectPrevious,
7272 cx: &mut ViewContext<Self>,
7273 ) -> Result<()> {
7274 self.push_to_selection_history();
7275 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7276 let buffer = &display_map.buffer_snapshot;
7277 let mut selections = self.selections.all::<usize>(cx);
7278 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7279 let query = &select_prev_state.query;
7280 if !select_prev_state.done {
7281 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7282 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7283 let mut next_selected_range = None;
7284 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7285 let bytes_before_last_selection =
7286 buffer.reversed_bytes_in_range(0..last_selection.start);
7287 let bytes_after_first_selection =
7288 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7289 let query_matches = query
7290 .stream_find_iter(bytes_before_last_selection)
7291 .map(|result| (last_selection.start, result))
7292 .chain(
7293 query
7294 .stream_find_iter(bytes_after_first_selection)
7295 .map(|result| (buffer.len(), result)),
7296 );
7297 for (end_offset, query_match) in query_matches {
7298 let query_match = query_match.unwrap(); // can only fail due to I/O
7299 let offset_range =
7300 end_offset - query_match.end()..end_offset - query_match.start();
7301 let display_range = offset_range.start.to_display_point(&display_map)
7302 ..offset_range.end.to_display_point(&display_map);
7303
7304 if !select_prev_state.wordwise
7305 || (!movement::is_inside_word(&display_map, display_range.start)
7306 && !movement::is_inside_word(&display_map, display_range.end))
7307 {
7308 next_selected_range = Some(offset_range);
7309 break;
7310 }
7311 }
7312
7313 if let Some(next_selected_range) = next_selected_range {
7314 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7315 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7316 if action.replace_newest {
7317 s.delete(s.newest_anchor().id);
7318 }
7319 s.insert_range(next_selected_range);
7320 });
7321 } else {
7322 select_prev_state.done = true;
7323 }
7324 }
7325
7326 self.select_prev_state = Some(select_prev_state);
7327 } else {
7328 let mut only_carets = true;
7329 let mut same_text_selected = true;
7330 let mut selected_text = None;
7331
7332 let mut selections_iter = selections.iter().peekable();
7333 while let Some(selection) = selections_iter.next() {
7334 if selection.start != selection.end {
7335 only_carets = false;
7336 }
7337
7338 if same_text_selected {
7339 if selected_text.is_none() {
7340 selected_text =
7341 Some(buffer.text_for_range(selection.range()).collect::<String>());
7342 }
7343
7344 if let Some(next_selection) = selections_iter.peek() {
7345 if next_selection.range().len() == selection.range().len() {
7346 let next_selected_text = buffer
7347 .text_for_range(next_selection.range())
7348 .collect::<String>();
7349 if Some(next_selected_text) != selected_text {
7350 same_text_selected = false;
7351 selected_text = None;
7352 }
7353 } else {
7354 same_text_selected = false;
7355 selected_text = None;
7356 }
7357 }
7358 }
7359 }
7360
7361 if only_carets {
7362 for selection in &mut selections {
7363 let word_range = movement::surrounding_word(
7364 &display_map,
7365 selection.start.to_display_point(&display_map),
7366 );
7367 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7368 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7369 selection.goal = SelectionGoal::None;
7370 selection.reversed = false;
7371 }
7372 if selections.len() == 1 {
7373 let selection = selections
7374 .last()
7375 .expect("ensured that there's only one selection");
7376 let query = buffer
7377 .text_for_range(selection.start..selection.end)
7378 .collect::<String>();
7379 let is_empty = query.is_empty();
7380 let select_state = SelectNextState {
7381 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7382 wordwise: true,
7383 done: is_empty,
7384 };
7385 self.select_prev_state = Some(select_state);
7386 } else {
7387 self.select_prev_state = None;
7388 }
7389
7390 self.unfold_ranges(
7391 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7392 false,
7393 true,
7394 cx,
7395 );
7396 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7397 s.select(selections);
7398 });
7399 } else if let Some(selected_text) = selected_text {
7400 self.select_prev_state = Some(SelectNextState {
7401 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7402 wordwise: false,
7403 done: false,
7404 });
7405 self.select_previous(action, cx)?;
7406 }
7407 }
7408 Ok(())
7409 }
7410
7411 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7412 let text_layout_details = &self.text_layout_details(cx);
7413 self.transact(cx, |this, cx| {
7414 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7415 let mut edits = Vec::new();
7416 let mut selection_edit_ranges = Vec::new();
7417 let mut last_toggled_row = None;
7418 let snapshot = this.buffer.read(cx).read(cx);
7419 let empty_str: Arc<str> = "".into();
7420 let mut suffixes_inserted = Vec::new();
7421
7422 fn comment_prefix_range(
7423 snapshot: &MultiBufferSnapshot,
7424 row: MultiBufferRow,
7425 comment_prefix: &str,
7426 comment_prefix_whitespace: &str,
7427 ) -> Range<Point> {
7428 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7429
7430 let mut line_bytes = snapshot
7431 .bytes_in_range(start..snapshot.max_point())
7432 .flatten()
7433 .copied();
7434
7435 // If this line currently begins with the line comment prefix, then record
7436 // the range containing the prefix.
7437 if line_bytes
7438 .by_ref()
7439 .take(comment_prefix.len())
7440 .eq(comment_prefix.bytes())
7441 {
7442 // Include any whitespace that matches the comment prefix.
7443 let matching_whitespace_len = line_bytes
7444 .zip(comment_prefix_whitespace.bytes())
7445 .take_while(|(a, b)| a == b)
7446 .count() as u32;
7447 let end = Point::new(
7448 start.row,
7449 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7450 );
7451 start..end
7452 } else {
7453 start..start
7454 }
7455 }
7456
7457 fn comment_suffix_range(
7458 snapshot: &MultiBufferSnapshot,
7459 row: MultiBufferRow,
7460 comment_suffix: &str,
7461 comment_suffix_has_leading_space: bool,
7462 ) -> Range<Point> {
7463 let end = Point::new(row.0, snapshot.line_len(row));
7464 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7465
7466 let mut line_end_bytes = snapshot
7467 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7468 .flatten()
7469 .copied();
7470
7471 let leading_space_len = if suffix_start_column > 0
7472 && line_end_bytes.next() == Some(b' ')
7473 && comment_suffix_has_leading_space
7474 {
7475 1
7476 } else {
7477 0
7478 };
7479
7480 // If this line currently begins with the line comment prefix, then record
7481 // the range containing the prefix.
7482 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7483 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7484 start..end
7485 } else {
7486 end..end
7487 }
7488 }
7489
7490 // TODO: Handle selections that cross excerpts
7491 for selection in &mut selections {
7492 let start_column = snapshot
7493 .indent_size_for_line(MultiBufferRow(selection.start.row))
7494 .len;
7495 let language = if let Some(language) =
7496 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7497 {
7498 language
7499 } else {
7500 continue;
7501 };
7502
7503 selection_edit_ranges.clear();
7504
7505 // If multiple selections contain a given row, avoid processing that
7506 // row more than once.
7507 let mut start_row = MultiBufferRow(selection.start.row);
7508 if last_toggled_row == Some(start_row) {
7509 start_row = start_row.next_row();
7510 }
7511 let end_row =
7512 if selection.end.row > selection.start.row && selection.end.column == 0 {
7513 MultiBufferRow(selection.end.row - 1)
7514 } else {
7515 MultiBufferRow(selection.end.row)
7516 };
7517 last_toggled_row = Some(end_row);
7518
7519 if start_row > end_row {
7520 continue;
7521 }
7522
7523 // If the language has line comments, toggle those.
7524 let full_comment_prefixes = language.line_comment_prefixes();
7525 if !full_comment_prefixes.is_empty() {
7526 let first_prefix = full_comment_prefixes
7527 .first()
7528 .expect("prefixes is non-empty");
7529 let prefix_trimmed_lengths = full_comment_prefixes
7530 .iter()
7531 .map(|p| p.trim_end_matches(' ').len())
7532 .collect::<SmallVec<[usize; 4]>>();
7533
7534 let mut all_selection_lines_are_comments = true;
7535
7536 for row in start_row.0..=end_row.0 {
7537 let row = MultiBufferRow(row);
7538 if start_row < end_row && snapshot.is_line_blank(row) {
7539 continue;
7540 }
7541
7542 let prefix_range = full_comment_prefixes
7543 .iter()
7544 .zip(prefix_trimmed_lengths.iter().copied())
7545 .map(|(prefix, trimmed_prefix_len)| {
7546 comment_prefix_range(
7547 snapshot.deref(),
7548 row,
7549 &prefix[..trimmed_prefix_len],
7550 &prefix[trimmed_prefix_len..],
7551 )
7552 })
7553 .max_by_key(|range| range.end.column - range.start.column)
7554 .expect("prefixes is non-empty");
7555
7556 if prefix_range.is_empty() {
7557 all_selection_lines_are_comments = false;
7558 }
7559
7560 selection_edit_ranges.push(prefix_range);
7561 }
7562
7563 if all_selection_lines_are_comments {
7564 edits.extend(
7565 selection_edit_ranges
7566 .iter()
7567 .cloned()
7568 .map(|range| (range, empty_str.clone())),
7569 );
7570 } else {
7571 let min_column = selection_edit_ranges
7572 .iter()
7573 .map(|range| range.start.column)
7574 .min()
7575 .unwrap_or(0);
7576 edits.extend(selection_edit_ranges.iter().map(|range| {
7577 let position = Point::new(range.start.row, min_column);
7578 (position..position, first_prefix.clone())
7579 }));
7580 }
7581 } else if let Some((full_comment_prefix, comment_suffix)) =
7582 language.block_comment_delimiters()
7583 {
7584 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7585 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7586 let prefix_range = comment_prefix_range(
7587 snapshot.deref(),
7588 start_row,
7589 comment_prefix,
7590 comment_prefix_whitespace,
7591 );
7592 let suffix_range = comment_suffix_range(
7593 snapshot.deref(),
7594 end_row,
7595 comment_suffix.trim_start_matches(' '),
7596 comment_suffix.starts_with(' '),
7597 );
7598
7599 if prefix_range.is_empty() || suffix_range.is_empty() {
7600 edits.push((
7601 prefix_range.start..prefix_range.start,
7602 full_comment_prefix.clone(),
7603 ));
7604 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7605 suffixes_inserted.push((end_row, comment_suffix.len()));
7606 } else {
7607 edits.push((prefix_range, empty_str.clone()));
7608 edits.push((suffix_range, empty_str.clone()));
7609 }
7610 } else {
7611 continue;
7612 }
7613 }
7614
7615 drop(snapshot);
7616 this.buffer.update(cx, |buffer, cx| {
7617 buffer.edit(edits, None, cx);
7618 });
7619
7620 // Adjust selections so that they end before any comment suffixes that
7621 // were inserted.
7622 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7623 let mut selections = this.selections.all::<Point>(cx);
7624 let snapshot = this.buffer.read(cx).read(cx);
7625 for selection in &mut selections {
7626 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7627 match row.cmp(&MultiBufferRow(selection.end.row)) {
7628 Ordering::Less => {
7629 suffixes_inserted.next();
7630 continue;
7631 }
7632 Ordering::Greater => break,
7633 Ordering::Equal => {
7634 if selection.end.column == snapshot.line_len(row) {
7635 if selection.is_empty() {
7636 selection.start.column -= suffix_len as u32;
7637 }
7638 selection.end.column -= suffix_len as u32;
7639 }
7640 break;
7641 }
7642 }
7643 }
7644 }
7645
7646 drop(snapshot);
7647 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7648
7649 let selections = this.selections.all::<Point>(cx);
7650 let selections_on_single_row = selections.windows(2).all(|selections| {
7651 selections[0].start.row == selections[1].start.row
7652 && selections[0].end.row == selections[1].end.row
7653 && selections[0].start.row == selections[0].end.row
7654 });
7655 let selections_selecting = selections
7656 .iter()
7657 .any(|selection| selection.start != selection.end);
7658 let advance_downwards = action.advance_downwards
7659 && selections_on_single_row
7660 && !selections_selecting
7661 && this.mode != EditorMode::SingleLine;
7662
7663 if advance_downwards {
7664 let snapshot = this.buffer.read(cx).snapshot(cx);
7665
7666 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7667 s.move_cursors_with(|display_snapshot, display_point, _| {
7668 let mut point = display_point.to_point(display_snapshot);
7669 point.row += 1;
7670 point = snapshot.clip_point(point, Bias::Left);
7671 let display_point = point.to_display_point(display_snapshot);
7672 let goal = SelectionGoal::HorizontalPosition(
7673 display_snapshot
7674 .x_for_display_point(display_point, &text_layout_details)
7675 .into(),
7676 );
7677 (display_point, goal)
7678 })
7679 });
7680 }
7681 });
7682 }
7683
7684 pub fn select_larger_syntax_node(
7685 &mut self,
7686 _: &SelectLargerSyntaxNode,
7687 cx: &mut ViewContext<Self>,
7688 ) {
7689 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7690 let buffer = self.buffer.read(cx).snapshot(cx);
7691 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7692
7693 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7694 let mut selected_larger_node = false;
7695 let new_selections = old_selections
7696 .iter()
7697 .map(|selection| {
7698 let old_range = selection.start..selection.end;
7699 let mut new_range = old_range.clone();
7700 while let Some(containing_range) =
7701 buffer.range_for_syntax_ancestor(new_range.clone())
7702 {
7703 new_range = containing_range;
7704 if !display_map.intersects_fold(new_range.start)
7705 && !display_map.intersects_fold(new_range.end)
7706 {
7707 break;
7708 }
7709 }
7710
7711 selected_larger_node |= new_range != old_range;
7712 Selection {
7713 id: selection.id,
7714 start: new_range.start,
7715 end: new_range.end,
7716 goal: SelectionGoal::None,
7717 reversed: selection.reversed,
7718 }
7719 })
7720 .collect::<Vec<_>>();
7721
7722 if selected_larger_node {
7723 stack.push(old_selections);
7724 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7725 s.select(new_selections);
7726 });
7727 }
7728 self.select_larger_syntax_node_stack = stack;
7729 }
7730
7731 pub fn select_smaller_syntax_node(
7732 &mut self,
7733 _: &SelectSmallerSyntaxNode,
7734 cx: &mut ViewContext<Self>,
7735 ) {
7736 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7737 if let Some(selections) = stack.pop() {
7738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7739 s.select(selections.to_vec());
7740 });
7741 }
7742 self.select_larger_syntax_node_stack = stack;
7743 }
7744
7745 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7746 let project = self.project.clone();
7747 cx.spawn(|this, mut cx| async move {
7748 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7749 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7750 }) else {
7751 return;
7752 };
7753
7754 let Some(project) = project else {
7755 return;
7756 };
7757 if project
7758 .update(&mut cx, |this, _| this.is_remote())
7759 .unwrap_or(true)
7760 {
7761 // Do not display any test indicators in remote projects.
7762 return;
7763 }
7764 let new_rows =
7765 cx.background_executor()
7766 .spawn({
7767 let snapshot = display_snapshot.clone();
7768 async move {
7769 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7770 }
7771 })
7772 .await;
7773 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7774
7775 this.update(&mut cx, |this, _| {
7776 this.clear_tasks();
7777 for (key, value) in rows {
7778 this.insert_tasks(key, value);
7779 }
7780 })
7781 .ok();
7782 })
7783 }
7784 fn fetch_runnable_ranges(
7785 snapshot: &DisplaySnapshot,
7786 range: Range<Anchor>,
7787 ) -> Vec<language::RunnableRange> {
7788 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7789 }
7790
7791 fn runnable_rows(
7792 project: Model<Project>,
7793 snapshot: DisplaySnapshot,
7794 runnable_ranges: Vec<RunnableRange>,
7795 mut cx: AsyncWindowContext,
7796 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7797 runnable_ranges
7798 .into_iter()
7799 .filter_map(|mut runnable| {
7800 let (tasks, _) = cx
7801 .update(|cx| {
7802 Self::resolve_runnable(project.clone(), &mut runnable.runnable, cx)
7803 })
7804 .ok()?;
7805 if tasks.is_empty() {
7806 return None;
7807 }
7808
7809 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7810
7811 let row = snapshot
7812 .buffer_snapshot
7813 .buffer_line_for_row(MultiBufferRow(point.row))?
7814 .1
7815 .start
7816 .row;
7817
7818 Some((
7819 (runnable.buffer_id, row),
7820 (
7821 runnable.run_range.start,
7822 RunnableTasks {
7823 templates: tasks,
7824 column: point.column,
7825 extra_variables: runnable.extra_captures,
7826 },
7827 ),
7828 ))
7829 })
7830 .collect()
7831 }
7832
7833 fn resolve_runnable(
7834 project: Model<Project>,
7835 runnable: &mut Runnable,
7836 cx: &WindowContext<'_>,
7837 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7838 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7839 let worktree_id = project
7840 .buffer_for_id(runnable.buffer)
7841 .and_then(|buffer| buffer.read(cx).file())
7842 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7843
7844 (project.task_inventory().clone(), worktree_id)
7845 });
7846
7847 let inventory = inventory.read(cx);
7848 let tags = mem::take(&mut runnable.tags);
7849 let mut tags: Vec<_> = tags
7850 .into_iter()
7851 .flat_map(|tag| {
7852 let tag = tag.0.clone();
7853 inventory
7854 .list_tasks(Some(runnable.language.clone()), worktree_id)
7855 .into_iter()
7856 .filter(move |(_, template)| {
7857 template.tags.iter().any(|source_tag| source_tag == &tag)
7858 })
7859 })
7860 .sorted_by_key(|(kind, _)| kind.to_owned())
7861 .collect();
7862 if let Some((leading_tag_source, _)) = tags.first() {
7863 // Strongest source wins; if we have worktree tag binding, prefer that to
7864 // global and language bindings;
7865 // if we have a global binding, prefer that to language binding.
7866 let first_mismatch = tags
7867 .iter()
7868 .position(|(tag_source, _)| tag_source != leading_tag_source);
7869 if let Some(index) = first_mismatch {
7870 tags.truncate(index);
7871 }
7872 }
7873
7874 (tags, worktree_id)
7875 }
7876
7877 pub fn move_to_enclosing_bracket(
7878 &mut self,
7879 _: &MoveToEnclosingBracket,
7880 cx: &mut ViewContext<Self>,
7881 ) {
7882 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7883 s.move_offsets_with(|snapshot, selection| {
7884 let Some(enclosing_bracket_ranges) =
7885 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7886 else {
7887 return;
7888 };
7889
7890 let mut best_length = usize::MAX;
7891 let mut best_inside = false;
7892 let mut best_in_bracket_range = false;
7893 let mut best_destination = None;
7894 for (open, close) in enclosing_bracket_ranges {
7895 let close = close.to_inclusive();
7896 let length = close.end() - open.start;
7897 let inside = selection.start >= open.end && selection.end <= *close.start();
7898 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7899 || close.contains(&selection.head());
7900
7901 // If best is next to a bracket and current isn't, skip
7902 if !in_bracket_range && best_in_bracket_range {
7903 continue;
7904 }
7905
7906 // Prefer smaller lengths unless best is inside and current isn't
7907 if length > best_length && (best_inside || !inside) {
7908 continue;
7909 }
7910
7911 best_length = length;
7912 best_inside = inside;
7913 best_in_bracket_range = in_bracket_range;
7914 best_destination = Some(
7915 if close.contains(&selection.start) && close.contains(&selection.end) {
7916 if inside {
7917 open.end
7918 } else {
7919 open.start
7920 }
7921 } else {
7922 if inside {
7923 *close.start()
7924 } else {
7925 *close.end()
7926 }
7927 },
7928 );
7929 }
7930
7931 if let Some(destination) = best_destination {
7932 selection.collapse_to(destination, SelectionGoal::None);
7933 }
7934 })
7935 });
7936 }
7937
7938 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7939 self.end_selection(cx);
7940 self.selection_history.mode = SelectionHistoryMode::Undoing;
7941 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7942 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7943 self.select_next_state = entry.select_next_state;
7944 self.select_prev_state = entry.select_prev_state;
7945 self.add_selections_state = entry.add_selections_state;
7946 self.request_autoscroll(Autoscroll::newest(), cx);
7947 }
7948 self.selection_history.mode = SelectionHistoryMode::Normal;
7949 }
7950
7951 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7952 self.end_selection(cx);
7953 self.selection_history.mode = SelectionHistoryMode::Redoing;
7954 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7955 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7956 self.select_next_state = entry.select_next_state;
7957 self.select_prev_state = entry.select_prev_state;
7958 self.add_selections_state = entry.add_selections_state;
7959 self.request_autoscroll(Autoscroll::newest(), cx);
7960 }
7961 self.selection_history.mode = SelectionHistoryMode::Normal;
7962 }
7963
7964 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7965 let selections = self.selections.disjoint_anchors();
7966
7967 let lines = if action.lines == 0 { 3 } else { action.lines };
7968
7969 self.buffer.update(cx, |buffer, cx| {
7970 buffer.expand_excerpts(
7971 selections
7972 .into_iter()
7973 .map(|selection| selection.head().excerpt_id)
7974 .dedup(),
7975 lines,
7976 cx,
7977 )
7978 })
7979 }
7980
7981 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7982 self.buffer
7983 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7984 }
7985
7986 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7987 self.go_to_diagnostic_impl(Direction::Next, cx)
7988 }
7989
7990 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7991 self.go_to_diagnostic_impl(Direction::Prev, cx)
7992 }
7993
7994 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7995 let buffer = self.buffer.read(cx).snapshot(cx);
7996 let selection = self.selections.newest::<usize>(cx);
7997
7998 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7999 if direction == Direction::Next {
8000 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8001 let (group_id, jump_to) = popover.activation_info();
8002 if self.activate_diagnostics(group_id, cx) {
8003 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8004 let mut new_selection = s.newest_anchor().clone();
8005 new_selection.collapse_to(jump_to, SelectionGoal::None);
8006 s.select_anchors(vec![new_selection.clone()]);
8007 });
8008 }
8009 return;
8010 }
8011 }
8012
8013 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8014 active_diagnostics
8015 .primary_range
8016 .to_offset(&buffer)
8017 .to_inclusive()
8018 });
8019 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8020 if active_primary_range.contains(&selection.head()) {
8021 *active_primary_range.start()
8022 } else {
8023 selection.head()
8024 }
8025 } else {
8026 selection.head()
8027 };
8028 let snapshot = self.snapshot(cx);
8029 loop {
8030 let diagnostics = if direction == Direction::Prev {
8031 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8032 } else {
8033 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8034 }
8035 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8036 let group = diagnostics
8037 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8038 // be sorted in a stable way
8039 // skip until we are at current active diagnostic, if it exists
8040 .skip_while(|entry| {
8041 (match direction {
8042 Direction::Prev => entry.range.start >= search_start,
8043 Direction::Next => entry.range.start <= search_start,
8044 }) && self
8045 .active_diagnostics
8046 .as_ref()
8047 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8048 })
8049 .find_map(|entry| {
8050 if entry.diagnostic.is_primary
8051 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8052 && !entry.range.is_empty()
8053 // if we match with the active diagnostic, skip it
8054 && Some(entry.diagnostic.group_id)
8055 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8056 {
8057 Some((entry.range, entry.diagnostic.group_id))
8058 } else {
8059 None
8060 }
8061 });
8062
8063 if let Some((primary_range, group_id)) = group {
8064 if self.activate_diagnostics(group_id, cx) {
8065 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8066 s.select(vec![Selection {
8067 id: selection.id,
8068 start: primary_range.start,
8069 end: primary_range.start,
8070 reversed: false,
8071 goal: SelectionGoal::None,
8072 }]);
8073 });
8074 }
8075 break;
8076 } else {
8077 // Cycle around to the start of the buffer, potentially moving back to the start of
8078 // the currently active diagnostic.
8079 active_primary_range.take();
8080 if direction == Direction::Prev {
8081 if search_start == buffer.len() {
8082 break;
8083 } else {
8084 search_start = buffer.len();
8085 }
8086 } else if search_start == 0 {
8087 break;
8088 } else {
8089 search_start = 0;
8090 }
8091 }
8092 }
8093 }
8094
8095 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8096 let snapshot = self
8097 .display_map
8098 .update(cx, |display_map, cx| display_map.snapshot(cx));
8099 let selection = self.selections.newest::<Point>(cx);
8100
8101 if !self.seek_in_direction(
8102 &snapshot,
8103 selection.head(),
8104 false,
8105 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8106 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8107 ),
8108 cx,
8109 ) {
8110 let wrapped_point = Point::zero();
8111 self.seek_in_direction(
8112 &snapshot,
8113 wrapped_point,
8114 true,
8115 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8116 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8117 ),
8118 cx,
8119 );
8120 }
8121 }
8122
8123 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8124 let snapshot = self
8125 .display_map
8126 .update(cx, |display_map, cx| display_map.snapshot(cx));
8127 let selection = self.selections.newest::<Point>(cx);
8128
8129 if !self.seek_in_direction(
8130 &snapshot,
8131 selection.head(),
8132 false,
8133 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8134 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8135 ),
8136 cx,
8137 ) {
8138 let wrapped_point = snapshot.buffer_snapshot.max_point();
8139 self.seek_in_direction(
8140 &snapshot,
8141 wrapped_point,
8142 true,
8143 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8144 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8145 ),
8146 cx,
8147 );
8148 }
8149 }
8150
8151 fn seek_in_direction(
8152 &mut self,
8153 snapshot: &DisplaySnapshot,
8154 initial_point: Point,
8155 is_wrapped: bool,
8156 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8157 cx: &mut ViewContext<Editor>,
8158 ) -> bool {
8159 let display_point = initial_point.to_display_point(snapshot);
8160 let mut hunks = hunks
8161 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8162 .filter(|hunk| {
8163 if is_wrapped {
8164 true
8165 } else {
8166 !hunk.contains_display_row(display_point.row())
8167 }
8168 })
8169 .dedup();
8170
8171 if let Some(hunk) = hunks.next() {
8172 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8173 let row = hunk.start_display_row();
8174 let point = DisplayPoint::new(row, 0);
8175 s.select_display_ranges([point..point]);
8176 });
8177
8178 true
8179 } else {
8180 false
8181 }
8182 }
8183
8184 pub fn go_to_definition(
8185 &mut self,
8186 _: &GoToDefinition,
8187 cx: &mut ViewContext<Self>,
8188 ) -> Task<Result<bool>> {
8189 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8190 }
8191
8192 pub fn go_to_implementation(
8193 &mut self,
8194 _: &GoToImplementation,
8195 cx: &mut ViewContext<Self>,
8196 ) -> Task<Result<bool>> {
8197 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8198 }
8199
8200 pub fn go_to_implementation_split(
8201 &mut self,
8202 _: &GoToImplementationSplit,
8203 cx: &mut ViewContext<Self>,
8204 ) -> Task<Result<bool>> {
8205 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8206 }
8207
8208 pub fn go_to_type_definition(
8209 &mut self,
8210 _: &GoToTypeDefinition,
8211 cx: &mut ViewContext<Self>,
8212 ) -> Task<Result<bool>> {
8213 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8214 }
8215
8216 pub fn go_to_definition_split(
8217 &mut self,
8218 _: &GoToDefinitionSplit,
8219 cx: &mut ViewContext<Self>,
8220 ) -> Task<Result<bool>> {
8221 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8222 }
8223
8224 pub fn go_to_type_definition_split(
8225 &mut self,
8226 _: &GoToTypeDefinitionSplit,
8227 cx: &mut ViewContext<Self>,
8228 ) -> Task<Result<bool>> {
8229 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8230 }
8231
8232 fn go_to_definition_of_kind(
8233 &mut self,
8234 kind: GotoDefinitionKind,
8235 split: bool,
8236 cx: &mut ViewContext<Self>,
8237 ) -> Task<Result<bool>> {
8238 let Some(workspace) = self.workspace() else {
8239 return Task::ready(Ok(false));
8240 };
8241 let buffer = self.buffer.read(cx);
8242 let head = self.selections.newest::<usize>(cx).head();
8243 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8244 text_anchor
8245 } else {
8246 return Task::ready(Ok(false));
8247 };
8248
8249 let project = workspace.read(cx).project().clone();
8250 let definitions = project.update(cx, |project, cx| match kind {
8251 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8252 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8253 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8254 });
8255
8256 cx.spawn(|editor, mut cx| async move {
8257 let definitions = definitions.await?;
8258 let navigated = editor
8259 .update(&mut cx, |editor, cx| {
8260 editor.navigate_to_hover_links(
8261 Some(kind),
8262 definitions
8263 .into_iter()
8264 .filter(|location| {
8265 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8266 })
8267 .map(HoverLink::Text)
8268 .collect::<Vec<_>>(),
8269 split,
8270 cx,
8271 )
8272 })?
8273 .await?;
8274 anyhow::Ok(navigated)
8275 })
8276 }
8277
8278 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8279 let position = self.selections.newest_anchor().head();
8280 let Some((buffer, buffer_position)) =
8281 self.buffer.read(cx).text_anchor_for_position(position, cx)
8282 else {
8283 return;
8284 };
8285
8286 cx.spawn(|editor, mut cx| async move {
8287 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8288 editor.update(&mut cx, |_, cx| {
8289 cx.open_url(&url);
8290 })
8291 } else {
8292 Ok(())
8293 }
8294 })
8295 .detach();
8296 }
8297
8298 pub(crate) fn navigate_to_hover_links(
8299 &mut self,
8300 kind: Option<GotoDefinitionKind>,
8301 mut definitions: Vec<HoverLink>,
8302 split: bool,
8303 cx: &mut ViewContext<Editor>,
8304 ) -> Task<Result<bool>> {
8305 // If there is one definition, just open it directly
8306 if definitions.len() == 1 {
8307 let definition = definitions.pop().unwrap();
8308 let target_task = match definition {
8309 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8310 HoverLink::InlayHint(lsp_location, server_id) => {
8311 self.compute_target_location(lsp_location, server_id, cx)
8312 }
8313 HoverLink::Url(url) => {
8314 cx.open_url(&url);
8315 Task::ready(Ok(None))
8316 }
8317 };
8318 cx.spawn(|editor, mut cx| async move {
8319 let target = target_task.await.context("target resolution task")?;
8320 if let Some(target) = target {
8321 editor.update(&mut cx, |editor, cx| {
8322 let Some(workspace) = editor.workspace() else {
8323 return false;
8324 };
8325 let pane = workspace.read(cx).active_pane().clone();
8326
8327 let range = target.range.to_offset(target.buffer.read(cx));
8328 let range = editor.range_for_match(&range);
8329 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8330 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8331 s.select_ranges([range]);
8332 });
8333 } else {
8334 cx.window_context().defer(move |cx| {
8335 let target_editor: View<Self> =
8336 workspace.update(cx, |workspace, cx| {
8337 let pane = if split {
8338 workspace.adjacent_pane(cx)
8339 } else {
8340 workspace.active_pane().clone()
8341 };
8342
8343 workspace.open_project_item(pane, target.buffer.clone(), cx)
8344 });
8345 target_editor.update(cx, |target_editor, cx| {
8346 // When selecting a definition in a different buffer, disable the nav history
8347 // to avoid creating a history entry at the previous cursor location.
8348 pane.update(cx, |pane, _| pane.disable_history());
8349 target_editor.change_selections(
8350 Some(Autoscroll::focused()),
8351 cx,
8352 |s| {
8353 s.select_ranges([range]);
8354 },
8355 );
8356 pane.update(cx, |pane, _| pane.enable_history());
8357 });
8358 });
8359 }
8360 true
8361 })
8362 } else {
8363 Ok(false)
8364 }
8365 })
8366 } else if !definitions.is_empty() {
8367 let replica_id = self.replica_id(cx);
8368 cx.spawn(|editor, mut cx| async move {
8369 let (title, location_tasks, workspace) = editor
8370 .update(&mut cx, |editor, cx| {
8371 let tab_kind = match kind {
8372 Some(GotoDefinitionKind::Implementation) => "Implementations",
8373 _ => "Definitions",
8374 };
8375 let title = definitions
8376 .iter()
8377 .find_map(|definition| match definition {
8378 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8379 let buffer = origin.buffer.read(cx);
8380 format!(
8381 "{} for {}",
8382 tab_kind,
8383 buffer
8384 .text_for_range(origin.range.clone())
8385 .collect::<String>()
8386 )
8387 }),
8388 HoverLink::InlayHint(_, _) => None,
8389 HoverLink::Url(_) => None,
8390 })
8391 .unwrap_or(tab_kind.to_string());
8392 let location_tasks = definitions
8393 .into_iter()
8394 .map(|definition| match definition {
8395 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8396 HoverLink::InlayHint(lsp_location, server_id) => {
8397 editor.compute_target_location(lsp_location, server_id, cx)
8398 }
8399 HoverLink::Url(_) => Task::ready(Ok(None)),
8400 })
8401 .collect::<Vec<_>>();
8402 (title, location_tasks, editor.workspace().clone())
8403 })
8404 .context("location tasks preparation")?;
8405
8406 let locations = futures::future::join_all(location_tasks)
8407 .await
8408 .into_iter()
8409 .filter_map(|location| location.transpose())
8410 .collect::<Result<_>>()
8411 .context("location tasks")?;
8412
8413 let Some(workspace) = workspace else {
8414 return Ok(false);
8415 };
8416 let opened = workspace
8417 .update(&mut cx, |workspace, cx| {
8418 Self::open_locations_in_multibuffer(
8419 workspace, locations, replica_id, title, split, cx,
8420 )
8421 })
8422 .ok();
8423
8424 anyhow::Ok(opened.is_some())
8425 })
8426 } else {
8427 Task::ready(Ok(false))
8428 }
8429 }
8430
8431 fn compute_target_location(
8432 &self,
8433 lsp_location: lsp::Location,
8434 server_id: LanguageServerId,
8435 cx: &mut ViewContext<Editor>,
8436 ) -> Task<anyhow::Result<Option<Location>>> {
8437 let Some(project) = self.project.clone() else {
8438 return Task::Ready(Some(Ok(None)));
8439 };
8440
8441 cx.spawn(move |editor, mut cx| async move {
8442 let location_task = editor.update(&mut cx, |editor, cx| {
8443 project.update(cx, |project, cx| {
8444 let language_server_name =
8445 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8446 project
8447 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8448 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8449 });
8450 language_server_name.map(|language_server_name| {
8451 project.open_local_buffer_via_lsp(
8452 lsp_location.uri.clone(),
8453 server_id,
8454 language_server_name,
8455 cx,
8456 )
8457 })
8458 })
8459 })?;
8460 let location = match location_task {
8461 Some(task) => Some({
8462 let target_buffer_handle = task.await.context("open local buffer")?;
8463 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8464 let target_start = target_buffer
8465 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8466 let target_end = target_buffer
8467 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8468 target_buffer.anchor_after(target_start)
8469 ..target_buffer.anchor_before(target_end)
8470 })?;
8471 Location {
8472 buffer: target_buffer_handle,
8473 range,
8474 }
8475 }),
8476 None => None,
8477 };
8478 Ok(location)
8479 })
8480 }
8481
8482 pub fn find_all_references(
8483 &mut self,
8484 _: &FindAllReferences,
8485 cx: &mut ViewContext<Self>,
8486 ) -> Option<Task<Result<()>>> {
8487 let multi_buffer = self.buffer.read(cx);
8488 let selection = self.selections.newest::<usize>(cx);
8489 let head = selection.head();
8490
8491 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8492 let head_anchor = multi_buffer_snapshot.anchor_at(
8493 head,
8494 if head < selection.tail() {
8495 Bias::Right
8496 } else {
8497 Bias::Left
8498 },
8499 );
8500
8501 match self
8502 .find_all_references_task_sources
8503 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8504 {
8505 Ok(_) => {
8506 log::info!(
8507 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8508 );
8509 return None;
8510 }
8511 Err(i) => {
8512 self.find_all_references_task_sources.insert(i, head_anchor);
8513 }
8514 }
8515
8516 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8517 let replica_id = self.replica_id(cx);
8518 let workspace = self.workspace()?;
8519 let project = workspace.read(cx).project().clone();
8520 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8521 Some(cx.spawn(|editor, mut cx| async move {
8522 let _cleanup = defer({
8523 let mut cx = cx.clone();
8524 move || {
8525 let _ = editor.update(&mut cx, |editor, _| {
8526 if let Ok(i) =
8527 editor
8528 .find_all_references_task_sources
8529 .binary_search_by(|anchor| {
8530 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8531 })
8532 {
8533 editor.find_all_references_task_sources.remove(i);
8534 }
8535 });
8536 }
8537 });
8538
8539 let locations = references.await?;
8540 if locations.is_empty() {
8541 return anyhow::Ok(());
8542 }
8543
8544 workspace.update(&mut cx, |workspace, cx| {
8545 let title = locations
8546 .first()
8547 .as_ref()
8548 .map(|location| {
8549 let buffer = location.buffer.read(cx);
8550 format!(
8551 "References to `{}`",
8552 buffer
8553 .text_for_range(location.range.clone())
8554 .collect::<String>()
8555 )
8556 })
8557 .unwrap();
8558 Self::open_locations_in_multibuffer(
8559 workspace, locations, replica_id, title, false, cx,
8560 );
8561 })
8562 }))
8563 }
8564
8565 /// Opens a multibuffer with the given project locations in it
8566 pub fn open_locations_in_multibuffer(
8567 workspace: &mut Workspace,
8568 mut locations: Vec<Location>,
8569 replica_id: ReplicaId,
8570 title: String,
8571 split: bool,
8572 cx: &mut ViewContext<Workspace>,
8573 ) {
8574 // If there are multiple definitions, open them in a multibuffer
8575 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8576 let mut locations = locations.into_iter().peekable();
8577 let mut ranges_to_highlight = Vec::new();
8578 let capability = workspace.project().read(cx).capability();
8579
8580 let excerpt_buffer = cx.new_model(|cx| {
8581 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8582 while let Some(location) = locations.next() {
8583 let buffer = location.buffer.read(cx);
8584 let mut ranges_for_buffer = Vec::new();
8585 let range = location.range.to_offset(buffer);
8586 ranges_for_buffer.push(range.clone());
8587
8588 while let Some(next_location) = locations.peek() {
8589 if next_location.buffer == location.buffer {
8590 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8591 locations.next();
8592 } else {
8593 break;
8594 }
8595 }
8596
8597 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8598 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8599 location.buffer.clone(),
8600 ranges_for_buffer,
8601 DEFAULT_MULTIBUFFER_CONTEXT,
8602 cx,
8603 ))
8604 }
8605
8606 multibuffer.with_title(title)
8607 });
8608
8609 let editor = cx.new_view(|cx| {
8610 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8611 });
8612 editor.update(cx, |editor, cx| {
8613 editor.highlight_background::<Self>(
8614 &ranges_to_highlight,
8615 |theme| theme.editor_highlighted_line_background,
8616 cx,
8617 );
8618 });
8619
8620 let item = Box::new(editor);
8621 let item_id = item.item_id();
8622
8623 if split {
8624 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8625 } else {
8626 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8627 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8628 pane.close_current_preview_item(cx)
8629 } else {
8630 None
8631 }
8632 });
8633 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8634 }
8635 workspace.active_pane().update(cx, |pane, cx| {
8636 pane.set_preview_item_id(Some(item_id), cx);
8637 });
8638 }
8639
8640 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8641 use language::ToOffset as _;
8642
8643 let project = self.project.clone()?;
8644 let selection = self.selections.newest_anchor().clone();
8645 let (cursor_buffer, cursor_buffer_position) = self
8646 .buffer
8647 .read(cx)
8648 .text_anchor_for_position(selection.head(), cx)?;
8649 let (tail_buffer, cursor_buffer_position_end) = self
8650 .buffer
8651 .read(cx)
8652 .text_anchor_for_position(selection.tail(), cx)?;
8653 if tail_buffer != cursor_buffer {
8654 return None;
8655 }
8656
8657 let snapshot = cursor_buffer.read(cx).snapshot();
8658 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8659 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8660 let prepare_rename = project.update(cx, |project, cx| {
8661 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8662 });
8663 drop(snapshot);
8664
8665 Some(cx.spawn(|this, mut cx| async move {
8666 let rename_range = if let Some(range) = prepare_rename.await? {
8667 Some(range)
8668 } else {
8669 this.update(&mut cx, |this, cx| {
8670 let buffer = this.buffer.read(cx).snapshot(cx);
8671 let mut buffer_highlights = this
8672 .document_highlights_for_position(selection.head(), &buffer)
8673 .filter(|highlight| {
8674 highlight.start.excerpt_id == selection.head().excerpt_id
8675 && highlight.end.excerpt_id == selection.head().excerpt_id
8676 });
8677 buffer_highlights
8678 .next()
8679 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8680 })?
8681 };
8682 if let Some(rename_range) = rename_range {
8683 this.update(&mut cx, |this, cx| {
8684 let snapshot = cursor_buffer.read(cx).snapshot();
8685 let rename_buffer_range = rename_range.to_offset(&snapshot);
8686 let cursor_offset_in_rename_range =
8687 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8688 let cursor_offset_in_rename_range_end =
8689 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8690
8691 this.take_rename(false, cx);
8692 let buffer = this.buffer.read(cx).read(cx);
8693 let cursor_offset = selection.head().to_offset(&buffer);
8694 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8695 let rename_end = rename_start + rename_buffer_range.len();
8696 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8697 let mut old_highlight_id = None;
8698 let old_name: Arc<str> = buffer
8699 .chunks(rename_start..rename_end, true)
8700 .map(|chunk| {
8701 if old_highlight_id.is_none() {
8702 old_highlight_id = chunk.syntax_highlight_id;
8703 }
8704 chunk.text
8705 })
8706 .collect::<String>()
8707 .into();
8708
8709 drop(buffer);
8710
8711 // Position the selection in the rename editor so that it matches the current selection.
8712 this.show_local_selections = false;
8713 let rename_editor = cx.new_view(|cx| {
8714 let mut editor = Editor::single_line(cx);
8715 editor.buffer.update(cx, |buffer, cx| {
8716 buffer.edit([(0..0, old_name.clone())], None, cx)
8717 });
8718 let rename_selection_range = match cursor_offset_in_rename_range
8719 .cmp(&cursor_offset_in_rename_range_end)
8720 {
8721 Ordering::Equal => {
8722 editor.select_all(&SelectAll, cx);
8723 return editor;
8724 }
8725 Ordering::Less => {
8726 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8727 }
8728 Ordering::Greater => {
8729 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8730 }
8731 };
8732 if rename_selection_range.end > old_name.len() {
8733 editor.select_all(&SelectAll, cx);
8734 } else {
8735 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8736 s.select_ranges([rename_selection_range]);
8737 });
8738 }
8739 editor
8740 });
8741
8742 let write_highlights =
8743 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8744 let read_highlights =
8745 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8746 let ranges = write_highlights
8747 .iter()
8748 .flat_map(|(_, ranges)| ranges.iter())
8749 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8750 .cloned()
8751 .collect();
8752
8753 this.highlight_text::<Rename>(
8754 ranges,
8755 HighlightStyle {
8756 fade_out: Some(0.6),
8757 ..Default::default()
8758 },
8759 cx,
8760 );
8761 let rename_focus_handle = rename_editor.focus_handle(cx);
8762 cx.focus(&rename_focus_handle);
8763 let block_id = this.insert_blocks(
8764 [BlockProperties {
8765 style: BlockStyle::Flex,
8766 position: range.start,
8767 height: 1,
8768 render: Box::new({
8769 let rename_editor = rename_editor.clone();
8770 move |cx: &mut BlockContext| {
8771 let mut text_style = cx.editor_style.text.clone();
8772 if let Some(highlight_style) = old_highlight_id
8773 .and_then(|h| h.style(&cx.editor_style.syntax))
8774 {
8775 text_style = text_style.highlight(highlight_style);
8776 }
8777 div()
8778 .pl(cx.anchor_x)
8779 .child(EditorElement::new(
8780 &rename_editor,
8781 EditorStyle {
8782 background: cx.theme().system().transparent,
8783 local_player: cx.editor_style.local_player,
8784 text: text_style,
8785 scrollbar_width: cx.editor_style.scrollbar_width,
8786 syntax: cx.editor_style.syntax.clone(),
8787 status: cx.editor_style.status.clone(),
8788 inlay_hints_style: HighlightStyle {
8789 color: Some(cx.theme().status().hint),
8790 font_weight: Some(FontWeight::BOLD),
8791 ..HighlightStyle::default()
8792 },
8793 suggestions_style: HighlightStyle {
8794 color: Some(cx.theme().status().predictive),
8795 ..HighlightStyle::default()
8796 },
8797 },
8798 ))
8799 .into_any_element()
8800 }
8801 }),
8802 disposition: BlockDisposition::Below,
8803 }],
8804 Some(Autoscroll::fit()),
8805 cx,
8806 )[0];
8807 this.pending_rename = Some(RenameState {
8808 range,
8809 old_name,
8810 editor: rename_editor,
8811 block_id,
8812 });
8813 })?;
8814 }
8815
8816 Ok(())
8817 }))
8818 }
8819
8820 pub fn confirm_rename(
8821 &mut self,
8822 _: &ConfirmRename,
8823 cx: &mut ViewContext<Self>,
8824 ) -> Option<Task<Result<()>>> {
8825 let rename = self.take_rename(false, cx)?;
8826 let workspace = self.workspace()?;
8827 let (start_buffer, start) = self
8828 .buffer
8829 .read(cx)
8830 .text_anchor_for_position(rename.range.start, cx)?;
8831 let (end_buffer, end) = self
8832 .buffer
8833 .read(cx)
8834 .text_anchor_for_position(rename.range.end, cx)?;
8835 if start_buffer != end_buffer {
8836 return None;
8837 }
8838
8839 let buffer = start_buffer;
8840 let range = start..end;
8841 let old_name = rename.old_name;
8842 let new_name = rename.editor.read(cx).text(cx);
8843
8844 let rename = workspace
8845 .read(cx)
8846 .project()
8847 .clone()
8848 .update(cx, |project, cx| {
8849 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8850 });
8851 let workspace = workspace.downgrade();
8852
8853 Some(cx.spawn(|editor, mut cx| async move {
8854 let project_transaction = rename.await?;
8855 Self::open_project_transaction(
8856 &editor,
8857 workspace,
8858 project_transaction,
8859 format!("Rename: {} → {}", old_name, new_name),
8860 cx.clone(),
8861 )
8862 .await?;
8863
8864 editor.update(&mut cx, |editor, cx| {
8865 editor.refresh_document_highlights(cx);
8866 })?;
8867 Ok(())
8868 }))
8869 }
8870
8871 fn take_rename(
8872 &mut self,
8873 moving_cursor: bool,
8874 cx: &mut ViewContext<Self>,
8875 ) -> Option<RenameState> {
8876 let rename = self.pending_rename.take()?;
8877 if rename.editor.focus_handle(cx).is_focused(cx) {
8878 cx.focus(&self.focus_handle);
8879 }
8880
8881 self.remove_blocks(
8882 [rename.block_id].into_iter().collect(),
8883 Some(Autoscroll::fit()),
8884 cx,
8885 );
8886 self.clear_highlights::<Rename>(cx);
8887 self.show_local_selections = true;
8888
8889 if moving_cursor {
8890 let rename_editor = rename.editor.read(cx);
8891 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8892
8893 // Update the selection to match the position of the selection inside
8894 // the rename editor.
8895 let snapshot = self.buffer.read(cx).read(cx);
8896 let rename_range = rename.range.to_offset(&snapshot);
8897 let cursor_in_editor = snapshot
8898 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8899 .min(rename_range.end);
8900 drop(snapshot);
8901
8902 self.change_selections(None, cx, |s| {
8903 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8904 });
8905 } else {
8906 self.refresh_document_highlights(cx);
8907 }
8908
8909 Some(rename)
8910 }
8911
8912 pub fn pending_rename(&self) -> Option<&RenameState> {
8913 self.pending_rename.as_ref()
8914 }
8915
8916 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8917 let project = match &self.project {
8918 Some(project) => project.clone(),
8919 None => return None,
8920 };
8921
8922 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8923 }
8924
8925 fn perform_format(
8926 &mut self,
8927 project: Model<Project>,
8928 trigger: FormatTrigger,
8929 cx: &mut ViewContext<Self>,
8930 ) -> Task<Result<()>> {
8931 let buffer = self.buffer().clone();
8932 let mut buffers = buffer.read(cx).all_buffers();
8933 if trigger == FormatTrigger::Save {
8934 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8935 }
8936
8937 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8938 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8939
8940 cx.spawn(|_, mut cx| async move {
8941 let transaction = futures::select_biased! {
8942 () = timeout => {
8943 log::warn!("timed out waiting for formatting");
8944 None
8945 }
8946 transaction = format.log_err().fuse() => transaction,
8947 };
8948
8949 buffer
8950 .update(&mut cx, |buffer, cx| {
8951 if let Some(transaction) = transaction {
8952 if !buffer.is_singleton() {
8953 buffer.push_transaction(&transaction.0, cx);
8954 }
8955 }
8956
8957 cx.notify();
8958 })
8959 .ok();
8960
8961 Ok(())
8962 })
8963 }
8964
8965 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8966 if let Some(project) = self.project.clone() {
8967 self.buffer.update(cx, |multi_buffer, cx| {
8968 project.update(cx, |project, cx| {
8969 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8970 });
8971 })
8972 }
8973 }
8974
8975 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8976 cx.show_character_palette();
8977 }
8978
8979 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8980 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8981 let buffer = self.buffer.read(cx).snapshot(cx);
8982 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8983 let is_valid = buffer
8984 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8985 .any(|entry| {
8986 entry.diagnostic.is_primary
8987 && !entry.range.is_empty()
8988 && entry.range.start == primary_range_start
8989 && entry.diagnostic.message == active_diagnostics.primary_message
8990 });
8991
8992 if is_valid != active_diagnostics.is_valid {
8993 active_diagnostics.is_valid = is_valid;
8994 let mut new_styles = HashMap::default();
8995 for (block_id, diagnostic) in &active_diagnostics.blocks {
8996 new_styles.insert(
8997 *block_id,
8998 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8999 );
9000 }
9001 self.display_map
9002 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9003 }
9004 }
9005 }
9006
9007 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9008 self.dismiss_diagnostics(cx);
9009 let snapshot = self.snapshot(cx);
9010 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9011 let buffer = self.buffer.read(cx).snapshot(cx);
9012
9013 let mut primary_range = None;
9014 let mut primary_message = None;
9015 let mut group_end = Point::zero();
9016 let diagnostic_group = buffer
9017 .diagnostic_group::<MultiBufferPoint>(group_id)
9018 .filter_map(|entry| {
9019 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9020 && (entry.range.start.row == entry.range.end.row
9021 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9022 {
9023 return None;
9024 }
9025 if entry.range.end > group_end {
9026 group_end = entry.range.end;
9027 }
9028 if entry.diagnostic.is_primary {
9029 primary_range = Some(entry.range.clone());
9030 primary_message = Some(entry.diagnostic.message.clone());
9031 }
9032 Some(entry)
9033 })
9034 .collect::<Vec<_>>();
9035 let primary_range = primary_range?;
9036 let primary_message = primary_message?;
9037 let primary_range =
9038 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9039
9040 let blocks = display_map
9041 .insert_blocks(
9042 diagnostic_group.iter().map(|entry| {
9043 let diagnostic = entry.diagnostic.clone();
9044 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9045 BlockProperties {
9046 style: BlockStyle::Fixed,
9047 position: buffer.anchor_after(entry.range.start),
9048 height: message_height,
9049 render: diagnostic_block_renderer(diagnostic, true),
9050 disposition: BlockDisposition::Below,
9051 }
9052 }),
9053 cx,
9054 )
9055 .into_iter()
9056 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9057 .collect();
9058
9059 Some(ActiveDiagnosticGroup {
9060 primary_range,
9061 primary_message,
9062 group_id,
9063 blocks,
9064 is_valid: true,
9065 })
9066 });
9067 self.active_diagnostics.is_some()
9068 }
9069
9070 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9071 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9072 self.display_map.update(cx, |display_map, cx| {
9073 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9074 });
9075 cx.notify();
9076 }
9077 }
9078
9079 pub fn set_selections_from_remote(
9080 &mut self,
9081 selections: Vec<Selection<Anchor>>,
9082 pending_selection: Option<Selection<Anchor>>,
9083 cx: &mut ViewContext<Self>,
9084 ) {
9085 let old_cursor_position = self.selections.newest_anchor().head();
9086 self.selections.change_with(cx, |s| {
9087 s.select_anchors(selections);
9088 if let Some(pending_selection) = pending_selection {
9089 s.set_pending(pending_selection, SelectMode::Character);
9090 } else {
9091 s.clear_pending();
9092 }
9093 });
9094 self.selections_did_change(false, &old_cursor_position, cx);
9095 }
9096
9097 fn push_to_selection_history(&mut self) {
9098 self.selection_history.push(SelectionHistoryEntry {
9099 selections: self.selections.disjoint_anchors(),
9100 select_next_state: self.select_next_state.clone(),
9101 select_prev_state: self.select_prev_state.clone(),
9102 add_selections_state: self.add_selections_state.clone(),
9103 });
9104 }
9105
9106 pub fn transact(
9107 &mut self,
9108 cx: &mut ViewContext<Self>,
9109 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9110 ) -> Option<TransactionId> {
9111 self.start_transaction_at(Instant::now(), cx);
9112 update(self, cx);
9113 self.end_transaction_at(Instant::now(), cx)
9114 }
9115
9116 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9117 self.end_selection(cx);
9118 if let Some(tx_id) = self
9119 .buffer
9120 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9121 {
9122 self.selection_history
9123 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9124 cx.emit(EditorEvent::TransactionBegun {
9125 transaction_id: tx_id,
9126 })
9127 }
9128 }
9129
9130 fn end_transaction_at(
9131 &mut self,
9132 now: Instant,
9133 cx: &mut ViewContext<Self>,
9134 ) -> Option<TransactionId> {
9135 if let Some(tx_id) = self
9136 .buffer
9137 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9138 {
9139 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9140 *end_selections = Some(self.selections.disjoint_anchors());
9141 } else {
9142 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9143 }
9144
9145 cx.emit(EditorEvent::Edited);
9146 Some(tx_id)
9147 } else {
9148 None
9149 }
9150 }
9151
9152 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9153 let mut fold_ranges = Vec::new();
9154
9155 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9156
9157 let selections = self.selections.all_adjusted(cx);
9158 for selection in selections {
9159 let range = selection.range().sorted();
9160 let buffer_start_row = range.start.row;
9161
9162 for row in (0..=range.end.row).rev() {
9163 let fold_range = display_map.foldable_range(MultiBufferRow(row));
9164
9165 if let Some(fold_range) = fold_range {
9166 if fold_range.end.row >= buffer_start_row {
9167 fold_ranges.push(fold_range);
9168 if row <= range.start.row {
9169 break;
9170 }
9171 }
9172 }
9173 }
9174 }
9175
9176 self.fold_ranges(fold_ranges, true, cx);
9177 }
9178
9179 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9180 let buffer_row = fold_at.buffer_row;
9181 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9182
9183 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9184 let autoscroll = self
9185 .selections
9186 .all::<Point>(cx)
9187 .iter()
9188 .any(|selection| fold_range.overlaps(&selection.range()));
9189
9190 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9191 }
9192 }
9193
9194 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9195 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9196 let buffer = &display_map.buffer_snapshot;
9197 let selections = self.selections.all::<Point>(cx);
9198 let ranges = selections
9199 .iter()
9200 .map(|s| {
9201 let range = s.display_range(&display_map).sorted();
9202 let mut start = range.start.to_point(&display_map);
9203 let mut end = range.end.to_point(&display_map);
9204 start.column = 0;
9205 end.column = buffer.line_len(MultiBufferRow(end.row));
9206 start..end
9207 })
9208 .collect::<Vec<_>>();
9209
9210 self.unfold_ranges(ranges, true, true, cx);
9211 }
9212
9213 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9214 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9215
9216 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9217 ..Point::new(
9218 unfold_at.buffer_row.0,
9219 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9220 );
9221
9222 let autoscroll = self
9223 .selections
9224 .all::<Point>(cx)
9225 .iter()
9226 .any(|selection| selection.range().overlaps(&intersection_range));
9227
9228 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9229 }
9230
9231 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9232 let selections = self.selections.all::<Point>(cx);
9233 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9234 let line_mode = self.selections.line_mode;
9235 let ranges = selections.into_iter().map(|s| {
9236 if line_mode {
9237 let start = Point::new(s.start.row, 0);
9238 let end = Point::new(
9239 s.end.row,
9240 display_map
9241 .buffer_snapshot
9242 .line_len(MultiBufferRow(s.end.row)),
9243 );
9244 start..end
9245 } else {
9246 s.start..s.end
9247 }
9248 });
9249 self.fold_ranges(ranges, true, cx);
9250 }
9251
9252 pub fn fold_ranges<T: ToOffset + Clone>(
9253 &mut self,
9254 ranges: impl IntoIterator<Item = Range<T>>,
9255 auto_scroll: bool,
9256 cx: &mut ViewContext<Self>,
9257 ) {
9258 let mut fold_ranges = Vec::new();
9259 let mut buffers_affected = HashMap::default();
9260 let multi_buffer = self.buffer().read(cx);
9261 for range in ranges {
9262 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9263 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9264 };
9265 fold_ranges.push(range);
9266 }
9267
9268 let mut ranges = fold_ranges.into_iter().peekable();
9269 if ranges.peek().is_some() {
9270 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9271
9272 if auto_scroll {
9273 self.request_autoscroll(Autoscroll::fit(), cx);
9274 }
9275
9276 for buffer in buffers_affected.into_values() {
9277 self.sync_expanded_diff_hunks(buffer, cx);
9278 }
9279
9280 cx.notify();
9281
9282 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9283 // Clear diagnostics block when folding a range that contains it.
9284 let snapshot = self.snapshot(cx);
9285 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9286 drop(snapshot);
9287 self.active_diagnostics = Some(active_diagnostics);
9288 self.dismiss_diagnostics(cx);
9289 } else {
9290 self.active_diagnostics = Some(active_diagnostics);
9291 }
9292 }
9293
9294 self.scrollbar_marker_state.dirty = true;
9295 }
9296 }
9297
9298 pub fn unfold_ranges<T: ToOffset + Clone>(
9299 &mut self,
9300 ranges: impl IntoIterator<Item = Range<T>>,
9301 inclusive: bool,
9302 auto_scroll: bool,
9303 cx: &mut ViewContext<Self>,
9304 ) {
9305 let mut unfold_ranges = Vec::new();
9306 let mut buffers_affected = HashMap::default();
9307 let multi_buffer = self.buffer().read(cx);
9308 for range in ranges {
9309 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9310 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9311 };
9312 unfold_ranges.push(range);
9313 }
9314
9315 let mut ranges = unfold_ranges.into_iter().peekable();
9316 if ranges.peek().is_some() {
9317 self.display_map
9318 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9319 if auto_scroll {
9320 self.request_autoscroll(Autoscroll::fit(), cx);
9321 }
9322
9323 for buffer in buffers_affected.into_values() {
9324 self.sync_expanded_diff_hunks(buffer, cx);
9325 }
9326
9327 cx.notify();
9328 self.scrollbar_marker_state.dirty = true;
9329 }
9330 }
9331
9332 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9333 if hovered != self.gutter_hovered {
9334 self.gutter_hovered = hovered;
9335 cx.notify();
9336 }
9337 }
9338
9339 pub fn insert_blocks(
9340 &mut self,
9341 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9342 autoscroll: Option<Autoscroll>,
9343 cx: &mut ViewContext<Self>,
9344 ) -> Vec<BlockId> {
9345 let blocks = self
9346 .display_map
9347 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9348 if let Some(autoscroll) = autoscroll {
9349 self.request_autoscroll(autoscroll, cx);
9350 }
9351 blocks
9352 }
9353
9354 pub fn replace_blocks(
9355 &mut self,
9356 blocks: HashMap<BlockId, RenderBlock>,
9357 autoscroll: Option<Autoscroll>,
9358 cx: &mut ViewContext<Self>,
9359 ) {
9360 self.display_map
9361 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9362 if let Some(autoscroll) = autoscroll {
9363 self.request_autoscroll(autoscroll, cx);
9364 }
9365 }
9366
9367 pub fn remove_blocks(
9368 &mut self,
9369 block_ids: HashSet<BlockId>,
9370 autoscroll: Option<Autoscroll>,
9371 cx: &mut ViewContext<Self>,
9372 ) {
9373 self.display_map.update(cx, |display_map, cx| {
9374 display_map.remove_blocks(block_ids, cx)
9375 });
9376 if let Some(autoscroll) = autoscroll {
9377 self.request_autoscroll(autoscroll, cx);
9378 }
9379 }
9380
9381 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9382 self.display_map
9383 .update(cx, |map, cx| map.snapshot(cx))
9384 .longest_row()
9385 }
9386
9387 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9388 self.display_map
9389 .update(cx, |map, cx| map.snapshot(cx))
9390 .max_point()
9391 }
9392
9393 pub fn text(&self, cx: &AppContext) -> String {
9394 self.buffer.read(cx).read(cx).text()
9395 }
9396
9397 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9398 let text = self.text(cx);
9399 let text = text.trim();
9400
9401 if text.is_empty() {
9402 return None;
9403 }
9404
9405 Some(text.to_string())
9406 }
9407
9408 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9409 self.transact(cx, |this, cx| {
9410 this.buffer
9411 .read(cx)
9412 .as_singleton()
9413 .expect("you can only call set_text on editors for singleton buffers")
9414 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9415 });
9416 }
9417
9418 pub fn display_text(&self, cx: &mut AppContext) -> String {
9419 self.display_map
9420 .update(cx, |map, cx| map.snapshot(cx))
9421 .text()
9422 }
9423
9424 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9425 let mut wrap_guides = smallvec::smallvec![];
9426
9427 if self.show_wrap_guides == Some(false) {
9428 return wrap_guides;
9429 }
9430
9431 let settings = self.buffer.read(cx).settings_at(0, cx);
9432 if settings.show_wrap_guides {
9433 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9434 wrap_guides.push((soft_wrap as usize, true));
9435 }
9436 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9437 }
9438
9439 wrap_guides
9440 }
9441
9442 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9443 let settings = self.buffer.read(cx).settings_at(0, cx);
9444 let mode = self
9445 .soft_wrap_mode_override
9446 .unwrap_or_else(|| settings.soft_wrap);
9447 match mode {
9448 language_settings::SoftWrap::None => SoftWrap::None,
9449 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9450 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9451 language_settings::SoftWrap::PreferredLineLength => {
9452 SoftWrap::Column(settings.preferred_line_length)
9453 }
9454 }
9455 }
9456
9457 pub fn set_soft_wrap_mode(
9458 &mut self,
9459 mode: language_settings::SoftWrap,
9460 cx: &mut ViewContext<Self>,
9461 ) {
9462 self.soft_wrap_mode_override = Some(mode);
9463 cx.notify();
9464 }
9465
9466 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9467 let rem_size = cx.rem_size();
9468 self.display_map.update(cx, |map, cx| {
9469 map.set_font(
9470 style.text.font(),
9471 style.text.font_size.to_pixels(rem_size),
9472 cx,
9473 )
9474 });
9475 self.style = Some(style);
9476 }
9477
9478 pub fn style(&self) -> Option<&EditorStyle> {
9479 self.style.as_ref()
9480 }
9481
9482 // Called by the element. This method is not designed to be called outside of the editor
9483 // element's layout code because it does not notify when rewrapping is computed synchronously.
9484 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9485 self.display_map
9486 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9487 }
9488
9489 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9490 if self.soft_wrap_mode_override.is_some() {
9491 self.soft_wrap_mode_override.take();
9492 } else {
9493 let soft_wrap = match self.soft_wrap_mode(cx) {
9494 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9495 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9496 language_settings::SoftWrap::PreferLine
9497 }
9498 };
9499 self.soft_wrap_mode_override = Some(soft_wrap);
9500 }
9501 cx.notify();
9502 }
9503
9504 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9505 let mut editor_settings = EditorSettings::get_global(cx).clone();
9506 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9507 EditorSettings::override_global(editor_settings, cx);
9508 }
9509
9510 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9511 self.show_gutter = show_gutter;
9512 cx.notify();
9513 }
9514
9515 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9516 self.show_wrap_guides = Some(show_gutter);
9517 cx.notify();
9518 }
9519
9520 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9521 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9522 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9523 cx.reveal_path(&file.abs_path(cx));
9524 }
9525 }
9526 }
9527
9528 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9529 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9530 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9531 if let Some(path) = file.abs_path(cx).to_str() {
9532 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9533 }
9534 }
9535 }
9536 }
9537
9538 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9539 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9540 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9541 if let Some(path) = file.path().to_str() {
9542 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9543 }
9544 }
9545 }
9546 }
9547
9548 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9549 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9550
9551 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9552 self.start_git_blame(true, cx);
9553 }
9554
9555 cx.notify();
9556 }
9557
9558 pub fn toggle_git_blame_inline(
9559 &mut self,
9560 _: &ToggleGitBlameInline,
9561 cx: &mut ViewContext<Self>,
9562 ) {
9563 self.toggle_git_blame_inline_internal(true, cx);
9564 cx.notify();
9565 }
9566
9567 pub fn git_blame_inline_enabled(&self) -> bool {
9568 self.git_blame_inline_enabled
9569 }
9570
9571 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9572 if let Some(project) = self.project.as_ref() {
9573 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9574 return;
9575 };
9576
9577 if buffer.read(cx).file().is_none() {
9578 return;
9579 }
9580
9581 let focused = self.focus_handle(cx).contains_focused(cx);
9582
9583 let project = project.clone();
9584 let blame =
9585 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9586 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9587 self.blame = Some(blame);
9588 }
9589 }
9590
9591 fn toggle_git_blame_inline_internal(
9592 &mut self,
9593 user_triggered: bool,
9594 cx: &mut ViewContext<Self>,
9595 ) {
9596 if self.git_blame_inline_enabled {
9597 self.git_blame_inline_enabled = false;
9598 self.show_git_blame_inline = false;
9599 self.show_git_blame_inline_delay_task.take();
9600 } else {
9601 self.git_blame_inline_enabled = true;
9602 self.start_git_blame_inline(user_triggered, cx);
9603 }
9604
9605 cx.notify();
9606 }
9607
9608 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9609 self.start_git_blame(user_triggered, cx);
9610
9611 if ProjectSettings::get_global(cx)
9612 .git
9613 .inline_blame_delay()
9614 .is_some()
9615 {
9616 self.start_inline_blame_timer(cx);
9617 } else {
9618 self.show_git_blame_inline = true
9619 }
9620 }
9621
9622 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9623 self.blame.as_ref()
9624 }
9625
9626 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9627 self.show_git_blame_gutter && self.has_blame_entries(cx)
9628 }
9629
9630 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9631 self.show_git_blame_inline
9632 && self.focus_handle.is_focused(cx)
9633 && !self.newest_selection_head_on_empty_line(cx)
9634 && self.has_blame_entries(cx)
9635 }
9636
9637 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9638 self.blame()
9639 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9640 }
9641
9642 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9643 let cursor_anchor = self.selections.newest_anchor().head();
9644
9645 let snapshot = self.buffer.read(cx).snapshot(cx);
9646 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9647
9648 snapshot.line_len(buffer_row) == 0
9649 }
9650
9651 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9652 let (path, repo) = maybe!({
9653 let project_handle = self.project.as_ref()?.clone();
9654 let project = project_handle.read(cx);
9655 let buffer = self.buffer().read(cx).as_singleton()?;
9656 let path = buffer
9657 .read(cx)
9658 .file()?
9659 .as_local()?
9660 .path()
9661 .to_str()?
9662 .to_string();
9663 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9664 Some((path, repo))
9665 })
9666 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9667
9668 const REMOTE_NAME: &str = "origin";
9669 let origin_url = repo
9670 .lock()
9671 .remote_url(REMOTE_NAME)
9672 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9673 let sha = repo
9674 .lock()
9675 .head_sha()
9676 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9677 let selections = self.selections.all::<Point>(cx);
9678 let selection = selections.iter().peekable().next();
9679
9680 let (provider, remote) =
9681 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9682 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9683
9684 Ok(provider.build_permalink(
9685 remote,
9686 BuildPermalinkParams {
9687 sha: &sha,
9688 path: &path,
9689 selection: selection.map(|selection| {
9690 let range = selection.range();
9691 let start = range.start.row;
9692 let end = range.end.row;
9693 start..end
9694 }),
9695 },
9696 ))
9697 }
9698
9699 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9700 let permalink = self.get_permalink_to_line(cx);
9701
9702 match permalink {
9703 Ok(permalink) => {
9704 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9705 }
9706 Err(err) => {
9707 let message = format!("Failed to copy permalink: {err}");
9708
9709 Err::<(), anyhow::Error>(err).log_err();
9710
9711 if let Some(workspace) = self.workspace() {
9712 workspace.update(cx, |workspace, cx| {
9713 struct CopyPermalinkToLine;
9714
9715 workspace.show_toast(
9716 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9717 cx,
9718 )
9719 })
9720 }
9721 }
9722 }
9723 }
9724
9725 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9726 let permalink = self.get_permalink_to_line(cx);
9727
9728 match permalink {
9729 Ok(permalink) => {
9730 cx.open_url(permalink.as_ref());
9731 }
9732 Err(err) => {
9733 let message = format!("Failed to open permalink: {err}");
9734
9735 Err::<(), anyhow::Error>(err).log_err();
9736
9737 if let Some(workspace) = self.workspace() {
9738 workspace.update(cx, |workspace, cx| {
9739 struct OpenPermalinkToLine;
9740
9741 workspace.show_toast(
9742 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9743 cx,
9744 )
9745 })
9746 }
9747 }
9748 }
9749 }
9750
9751 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9752 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9753 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9754 pub fn highlight_rows<T: 'static>(
9755 &mut self,
9756 rows: RangeInclusive<Anchor>,
9757 color: Option<Hsla>,
9758 cx: &mut ViewContext<Self>,
9759 ) {
9760 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9761 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9762 hash_map::Entry::Occupied(o) => {
9763 let row_highlights = o.into_mut();
9764 let existing_highlight_index =
9765 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9766 highlight_range
9767 .start()
9768 .cmp(&rows.start(), &multi_buffer_snapshot)
9769 .then(
9770 highlight_range
9771 .end()
9772 .cmp(&rows.end(), &multi_buffer_snapshot),
9773 )
9774 });
9775 match color {
9776 Some(color) => {
9777 let insert_index = match existing_highlight_index {
9778 Ok(i) => i,
9779 Err(i) => i,
9780 };
9781 row_highlights.insert(
9782 insert_index,
9783 (post_inc(&mut self.highlight_order), rows, Some(color)),
9784 );
9785 }
9786 None => match existing_highlight_index {
9787 Ok(i) => {
9788 row_highlights.remove(i);
9789 }
9790 Err(i) => {
9791 row_highlights
9792 .insert(i, (post_inc(&mut self.highlight_order), rows, None));
9793 }
9794 },
9795 }
9796 }
9797 hash_map::Entry::Vacant(v) => {
9798 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9799 }
9800 }
9801 }
9802
9803 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9804 pub fn clear_row_highlights<T: 'static>(&mut self) {
9805 self.highlighted_rows.remove(&TypeId::of::<T>());
9806 }
9807
9808 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9809 pub fn highlighted_rows<T: 'static>(
9810 &self,
9811 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9812 Some(
9813 self.highlighted_rows
9814 .get(&TypeId::of::<T>())?
9815 .iter()
9816 .map(|(_, range, color)| (range, color.as_ref())),
9817 )
9818 }
9819
9820 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9821 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9822 /// Allows to ignore certain kinds of highlights.
9823 pub fn highlighted_display_rows(
9824 &mut self,
9825 exclude_highlights: HashSet<TypeId>,
9826 cx: &mut WindowContext,
9827 ) -> BTreeMap<DisplayRow, Hsla> {
9828 let snapshot = self.snapshot(cx);
9829 let mut used_highlight_orders = HashMap::default();
9830 self.highlighted_rows
9831 .iter()
9832 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9833 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9834 .fold(
9835 BTreeMap::<DisplayRow, Hsla>::new(),
9836 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9837 let start_row = anchor_range.start().to_display_point(&snapshot).row();
9838 let end_row = anchor_range.end().to_display_point(&snapshot).row();
9839 for row in start_row.0..=end_row.0 {
9840 let used_index =
9841 used_highlight_orders.entry(row).or_insert(*highlight_order);
9842 if highlight_order >= used_index {
9843 *used_index = *highlight_order;
9844 match hsla {
9845 Some(hsla) => {
9846 unique_rows.insert(DisplayRow(row), *hsla);
9847 }
9848 None => {
9849 unique_rows.remove(&DisplayRow(row));
9850 }
9851 }
9852 }
9853 }
9854 unique_rows
9855 },
9856 )
9857 }
9858
9859 pub fn set_search_within_ranges(
9860 &mut self,
9861 ranges: &[Range<Anchor>],
9862 cx: &mut ViewContext<Self>,
9863 ) {
9864 self.highlight_background::<SearchWithinRange>(
9865 ranges,
9866 |colors| colors.editor_document_highlight_read_background,
9867 cx,
9868 )
9869 }
9870
9871 pub fn highlight_background<T: 'static>(
9872 &mut self,
9873 ranges: &[Range<Anchor>],
9874 color_fetcher: fn(&ThemeColors) -> Hsla,
9875 cx: &mut ViewContext<Self>,
9876 ) {
9877 let snapshot = self.snapshot(cx);
9878 // this is to try and catch a panic sooner
9879 for range in ranges {
9880 snapshot
9881 .buffer_snapshot
9882 .summary_for_anchor::<usize>(&range.start);
9883 snapshot
9884 .buffer_snapshot
9885 .summary_for_anchor::<usize>(&range.end);
9886 }
9887
9888 self.background_highlights
9889 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9890 self.scrollbar_marker_state.dirty = true;
9891 cx.notify();
9892 }
9893
9894 pub fn clear_background_highlights<T: 'static>(
9895 &mut self,
9896 cx: &mut ViewContext<Self>,
9897 ) -> Option<BackgroundHighlight> {
9898 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9899 if !text_highlights.1.is_empty() {
9900 self.scrollbar_marker_state.dirty = true;
9901 cx.notify();
9902 }
9903 Some(text_highlights)
9904 }
9905
9906 #[cfg(feature = "test-support")]
9907 pub fn all_text_background_highlights(
9908 &mut self,
9909 cx: &mut ViewContext<Self>,
9910 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9911 let snapshot = self.snapshot(cx);
9912 let buffer = &snapshot.buffer_snapshot;
9913 let start = buffer.anchor_before(0);
9914 let end = buffer.anchor_after(buffer.len());
9915 let theme = cx.theme().colors();
9916 self.background_highlights_in_range(start..end, &snapshot, theme)
9917 }
9918
9919 fn document_highlights_for_position<'a>(
9920 &'a self,
9921 position: Anchor,
9922 buffer: &'a MultiBufferSnapshot,
9923 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9924 let read_highlights = self
9925 .background_highlights
9926 .get(&TypeId::of::<DocumentHighlightRead>())
9927 .map(|h| &h.1);
9928 let write_highlights = self
9929 .background_highlights
9930 .get(&TypeId::of::<DocumentHighlightWrite>())
9931 .map(|h| &h.1);
9932 let left_position = position.bias_left(buffer);
9933 let right_position = position.bias_right(buffer);
9934 read_highlights
9935 .into_iter()
9936 .chain(write_highlights)
9937 .flat_map(move |ranges| {
9938 let start_ix = match ranges.binary_search_by(|probe| {
9939 let cmp = probe.end.cmp(&left_position, buffer);
9940 if cmp.is_ge() {
9941 Ordering::Greater
9942 } else {
9943 Ordering::Less
9944 }
9945 }) {
9946 Ok(i) | Err(i) => i,
9947 };
9948
9949 ranges[start_ix..]
9950 .iter()
9951 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9952 })
9953 }
9954
9955 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9956 self.background_highlights
9957 .get(&TypeId::of::<T>())
9958 .map_or(false, |(_, highlights)| !highlights.is_empty())
9959 }
9960
9961 pub fn background_highlights_in_range(
9962 &self,
9963 search_range: Range<Anchor>,
9964 display_snapshot: &DisplaySnapshot,
9965 theme: &ThemeColors,
9966 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9967 let mut results = Vec::new();
9968 for (color_fetcher, ranges) in self.background_highlights.values() {
9969 let color = color_fetcher(theme);
9970 let start_ix = match ranges.binary_search_by(|probe| {
9971 let cmp = probe
9972 .end
9973 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9974 if cmp.is_gt() {
9975 Ordering::Greater
9976 } else {
9977 Ordering::Less
9978 }
9979 }) {
9980 Ok(i) | Err(i) => i,
9981 };
9982 for range in &ranges[start_ix..] {
9983 if range
9984 .start
9985 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9986 .is_ge()
9987 {
9988 break;
9989 }
9990
9991 let start = range.start.to_display_point(&display_snapshot);
9992 let end = range.end.to_display_point(&display_snapshot);
9993 results.push((start..end, color))
9994 }
9995 }
9996 results
9997 }
9998
9999 pub fn background_highlight_row_ranges<T: 'static>(
10000 &self,
10001 search_range: Range<Anchor>,
10002 display_snapshot: &DisplaySnapshot,
10003 count: usize,
10004 ) -> Vec<RangeInclusive<DisplayPoint>> {
10005 let mut results = Vec::new();
10006 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10007 return vec![];
10008 };
10009
10010 let start_ix = match ranges.binary_search_by(|probe| {
10011 let cmp = probe
10012 .end
10013 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10014 if cmp.is_gt() {
10015 Ordering::Greater
10016 } else {
10017 Ordering::Less
10018 }
10019 }) {
10020 Ok(i) | Err(i) => i,
10021 };
10022 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10023 if let (Some(start_display), Some(end_display)) = (start, end) {
10024 results.push(
10025 start_display.to_display_point(display_snapshot)
10026 ..=end_display.to_display_point(display_snapshot),
10027 );
10028 }
10029 };
10030 let mut start_row: Option<Point> = None;
10031 let mut end_row: Option<Point> = None;
10032 if ranges.len() > count {
10033 return Vec::new();
10034 }
10035 for range in &ranges[start_ix..] {
10036 if range
10037 .start
10038 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10039 .is_ge()
10040 {
10041 break;
10042 }
10043 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10044 if let Some(current_row) = &end_row {
10045 if end.row == current_row.row {
10046 continue;
10047 }
10048 }
10049 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10050 if start_row.is_none() {
10051 assert_eq!(end_row, None);
10052 start_row = Some(start);
10053 end_row = Some(end);
10054 continue;
10055 }
10056 if let Some(current_end) = end_row.as_mut() {
10057 if start.row > current_end.row + 1 {
10058 push_region(start_row, end_row);
10059 start_row = Some(start);
10060 end_row = Some(end);
10061 } else {
10062 // Merge two hunks.
10063 *current_end = end;
10064 }
10065 } else {
10066 unreachable!();
10067 }
10068 }
10069 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10070 push_region(start_row, end_row);
10071 results
10072 }
10073
10074 /// Get the text ranges corresponding to the redaction query
10075 pub fn redacted_ranges(
10076 &self,
10077 search_range: Range<Anchor>,
10078 display_snapshot: &DisplaySnapshot,
10079 cx: &WindowContext,
10080 ) -> Vec<Range<DisplayPoint>> {
10081 display_snapshot
10082 .buffer_snapshot
10083 .redacted_ranges(search_range, |file| {
10084 if let Some(file) = file {
10085 file.is_private()
10086 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10087 } else {
10088 false
10089 }
10090 })
10091 .map(|range| {
10092 range.start.to_display_point(display_snapshot)
10093 ..range.end.to_display_point(display_snapshot)
10094 })
10095 .collect()
10096 }
10097
10098 pub fn highlight_text<T: 'static>(
10099 &mut self,
10100 ranges: Vec<Range<Anchor>>,
10101 style: HighlightStyle,
10102 cx: &mut ViewContext<Self>,
10103 ) {
10104 self.display_map.update(cx, |map, _| {
10105 map.highlight_text(TypeId::of::<T>(), ranges, style)
10106 });
10107 cx.notify();
10108 }
10109
10110 pub(crate) fn highlight_inlays<T: 'static>(
10111 &mut self,
10112 highlights: Vec<InlayHighlight>,
10113 style: HighlightStyle,
10114 cx: &mut ViewContext<Self>,
10115 ) {
10116 self.display_map.update(cx, |map, _| {
10117 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10118 });
10119 cx.notify();
10120 }
10121
10122 pub fn text_highlights<'a, T: 'static>(
10123 &'a self,
10124 cx: &'a AppContext,
10125 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10126 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10127 }
10128
10129 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10130 let cleared = self
10131 .display_map
10132 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10133 if cleared {
10134 cx.notify();
10135 }
10136 }
10137
10138 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10139 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10140 && self.focus_handle.is_focused(cx)
10141 }
10142
10143 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10144 cx.notify();
10145 }
10146
10147 fn on_buffer_event(
10148 &mut self,
10149 multibuffer: Model<MultiBuffer>,
10150 event: &multi_buffer::Event,
10151 cx: &mut ViewContext<Self>,
10152 ) {
10153 match event {
10154 multi_buffer::Event::Edited {
10155 singleton_buffer_edited,
10156 } => {
10157 self.scrollbar_marker_state.dirty = true;
10158 self.refresh_active_diagnostics(cx);
10159 self.refresh_code_actions(cx);
10160 if self.has_active_inline_completion(cx) {
10161 self.update_visible_inline_completion(cx);
10162 }
10163 cx.emit(EditorEvent::BufferEdited);
10164 cx.emit(SearchEvent::MatchesInvalidated);
10165
10166 if *singleton_buffer_edited {
10167 if let Some(project) = &self.project {
10168 let project = project.read(cx);
10169 let languages_affected = multibuffer
10170 .read(cx)
10171 .all_buffers()
10172 .into_iter()
10173 .filter_map(|buffer| {
10174 let buffer = buffer.read(cx);
10175 let language = buffer.language()?;
10176 if project.is_local()
10177 && project.language_servers_for_buffer(buffer, cx).count() == 0
10178 {
10179 None
10180 } else {
10181 Some(language)
10182 }
10183 })
10184 .cloned()
10185 .collect::<HashSet<_>>();
10186 if !languages_affected.is_empty() {
10187 self.refresh_inlay_hints(
10188 InlayHintRefreshReason::BufferEdited(languages_affected),
10189 cx,
10190 );
10191 }
10192 }
10193 }
10194
10195 let Some(project) = &self.project else { return };
10196 let telemetry = project.read(cx).client().telemetry().clone();
10197 telemetry.log_edit_event("editor");
10198 }
10199 multi_buffer::Event::ExcerptsAdded {
10200 buffer,
10201 predecessor,
10202 excerpts,
10203 } => {
10204 self.tasks_update_task = Some(self.refresh_runnables(cx));
10205 cx.emit(EditorEvent::ExcerptsAdded {
10206 buffer: buffer.clone(),
10207 predecessor: *predecessor,
10208 excerpts: excerpts.clone(),
10209 });
10210 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10211 }
10212 multi_buffer::Event::ExcerptsRemoved { ids } => {
10213 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10214 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10215 }
10216 multi_buffer::Event::Reparsed => {
10217 self.tasks_update_task = Some(self.refresh_runnables(cx));
10218
10219 cx.emit(EditorEvent::Reparsed);
10220 }
10221 multi_buffer::Event::LanguageChanged => {
10222 cx.emit(EditorEvent::Reparsed);
10223 cx.notify();
10224 }
10225 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10226 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10227 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10228 cx.emit(EditorEvent::TitleChanged)
10229 }
10230 multi_buffer::Event::DiffBaseChanged => {
10231 self.scrollbar_marker_state.dirty = true;
10232 cx.emit(EditorEvent::DiffBaseChanged);
10233 cx.notify();
10234 }
10235 multi_buffer::Event::DiffUpdated { buffer } => {
10236 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10237 cx.notify();
10238 }
10239 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10240 multi_buffer::Event::DiagnosticsUpdated => {
10241 self.refresh_active_diagnostics(cx);
10242 self.scrollbar_marker_state.dirty = true;
10243 cx.notify();
10244 }
10245 _ => {}
10246 };
10247 }
10248
10249 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10250 cx.notify();
10251 }
10252
10253 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10254 self.refresh_inline_completion(true, cx);
10255 self.refresh_inlay_hints(
10256 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10257 self.selections.newest_anchor().head(),
10258 &self.buffer.read(cx).snapshot(cx),
10259 cx,
10260 )),
10261 cx,
10262 );
10263 let editor_settings = EditorSettings::get_global(cx);
10264 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10265 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10266
10267 if self.mode == EditorMode::Full {
10268 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10269 if self.git_blame_inline_enabled != inline_blame_enabled {
10270 self.toggle_git_blame_inline_internal(false, cx);
10271 }
10272 }
10273
10274 cx.notify();
10275 }
10276
10277 pub fn set_searchable(&mut self, searchable: bool) {
10278 self.searchable = searchable;
10279 }
10280
10281 pub fn searchable(&self) -> bool {
10282 self.searchable
10283 }
10284
10285 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10286 self.open_excerpts_common(true, cx)
10287 }
10288
10289 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10290 self.open_excerpts_common(false, cx)
10291 }
10292
10293 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10294 let buffer = self.buffer.read(cx);
10295 if buffer.is_singleton() {
10296 cx.propagate();
10297 return;
10298 }
10299
10300 let Some(workspace) = self.workspace() else {
10301 cx.propagate();
10302 return;
10303 };
10304
10305 let mut new_selections_by_buffer = HashMap::default();
10306 for selection in self.selections.all::<usize>(cx) {
10307 for (buffer, mut range, _) in
10308 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10309 {
10310 if selection.reversed {
10311 mem::swap(&mut range.start, &mut range.end);
10312 }
10313 new_selections_by_buffer
10314 .entry(buffer)
10315 .or_insert(Vec::new())
10316 .push(range)
10317 }
10318 }
10319
10320 // We defer the pane interaction because we ourselves are a workspace item
10321 // and activating a new item causes the pane to call a method on us reentrantly,
10322 // which panics if we're on the stack.
10323 cx.window_context().defer(move |cx| {
10324 workspace.update(cx, |workspace, cx| {
10325 let pane = if split {
10326 workspace.adjacent_pane(cx)
10327 } else {
10328 workspace.active_pane().clone()
10329 };
10330
10331 for (buffer, ranges) in new_selections_by_buffer {
10332 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10333 editor.update(cx, |editor, cx| {
10334 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10335 s.select_ranges(ranges);
10336 });
10337 });
10338 }
10339 })
10340 });
10341 }
10342
10343 fn jump(
10344 &mut self,
10345 path: ProjectPath,
10346 position: Point,
10347 anchor: language::Anchor,
10348 offset_from_top: u32,
10349 cx: &mut ViewContext<Self>,
10350 ) {
10351 let workspace = self.workspace();
10352 cx.spawn(|_, mut cx| async move {
10353 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10354 let editor = workspace.update(&mut cx, |workspace, cx| {
10355 // Reset the preview item id before opening the new item
10356 workspace.active_pane().update(cx, |pane, cx| {
10357 pane.set_preview_item_id(None, cx);
10358 });
10359 workspace.open_path_preview(path, None, true, true, cx)
10360 })?;
10361 let editor = editor
10362 .await?
10363 .downcast::<Editor>()
10364 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10365 .downgrade();
10366 editor.update(&mut cx, |editor, cx| {
10367 let buffer = editor
10368 .buffer()
10369 .read(cx)
10370 .as_singleton()
10371 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10372 let buffer = buffer.read(cx);
10373 let cursor = if buffer.can_resolve(&anchor) {
10374 language::ToPoint::to_point(&anchor, buffer)
10375 } else {
10376 buffer.clip_point(position, Bias::Left)
10377 };
10378
10379 let nav_history = editor.nav_history.take();
10380 editor.change_selections(
10381 Some(Autoscroll::top_relative(offset_from_top as usize)),
10382 cx,
10383 |s| {
10384 s.select_ranges([cursor..cursor]);
10385 },
10386 );
10387 editor.nav_history = nav_history;
10388
10389 anyhow::Ok(())
10390 })??;
10391
10392 anyhow::Ok(())
10393 })
10394 .detach_and_log_err(cx);
10395 }
10396
10397 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10398 let snapshot = self.buffer.read(cx).read(cx);
10399 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10400 Some(
10401 ranges
10402 .iter()
10403 .map(move |range| {
10404 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10405 })
10406 .collect(),
10407 )
10408 }
10409
10410 fn selection_replacement_ranges(
10411 &self,
10412 range: Range<OffsetUtf16>,
10413 cx: &AppContext,
10414 ) -> Vec<Range<OffsetUtf16>> {
10415 let selections = self.selections.all::<OffsetUtf16>(cx);
10416 let newest_selection = selections
10417 .iter()
10418 .max_by_key(|selection| selection.id)
10419 .unwrap();
10420 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10421 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10422 let snapshot = self.buffer.read(cx).read(cx);
10423 selections
10424 .into_iter()
10425 .map(|mut selection| {
10426 selection.start.0 =
10427 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10428 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10429 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10430 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10431 })
10432 .collect()
10433 }
10434
10435 fn report_editor_event(
10436 &self,
10437 operation: &'static str,
10438 file_extension: Option<String>,
10439 cx: &AppContext,
10440 ) {
10441 if cfg!(any(test, feature = "test-support")) {
10442 return;
10443 }
10444
10445 let Some(project) = &self.project else { return };
10446
10447 // If None, we are in a file without an extension
10448 let file = self
10449 .buffer
10450 .read(cx)
10451 .as_singleton()
10452 .and_then(|b| b.read(cx).file());
10453 let file_extension = file_extension.or(file
10454 .as_ref()
10455 .and_then(|file| Path::new(file.file_name(cx)).extension())
10456 .and_then(|e| e.to_str())
10457 .map(|a| a.to_string()));
10458
10459 let vim_mode = cx
10460 .global::<SettingsStore>()
10461 .raw_user_settings()
10462 .get("vim_mode")
10463 == Some(&serde_json::Value::Bool(true));
10464
10465 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10466 == language::language_settings::InlineCompletionProvider::Copilot;
10467 let copilot_enabled_for_language = self
10468 .buffer
10469 .read(cx)
10470 .settings_at(0, cx)
10471 .show_inline_completions;
10472
10473 let telemetry = project.read(cx).client().telemetry().clone();
10474 telemetry.report_editor_event(
10475 file_extension,
10476 vim_mode,
10477 operation,
10478 copilot_enabled,
10479 copilot_enabled_for_language,
10480 )
10481 }
10482
10483 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10484 /// with each line being an array of {text, highlight} objects.
10485 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10486 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10487 return;
10488 };
10489
10490 #[derive(Serialize)]
10491 struct Chunk<'a> {
10492 text: String,
10493 highlight: Option<&'a str>,
10494 }
10495
10496 let snapshot = buffer.read(cx).snapshot();
10497 let range = self
10498 .selected_text_range(cx)
10499 .and_then(|selected_range| {
10500 if selected_range.is_empty() {
10501 None
10502 } else {
10503 Some(selected_range)
10504 }
10505 })
10506 .unwrap_or_else(|| 0..snapshot.len());
10507
10508 let chunks = snapshot.chunks(range, true);
10509 let mut lines = Vec::new();
10510 let mut line: VecDeque<Chunk> = VecDeque::new();
10511
10512 let Some(style) = self.style.as_ref() else {
10513 return;
10514 };
10515
10516 for chunk in chunks {
10517 let highlight = chunk
10518 .syntax_highlight_id
10519 .and_then(|id| id.name(&style.syntax));
10520 let mut chunk_lines = chunk.text.split('\n').peekable();
10521 while let Some(text) = chunk_lines.next() {
10522 let mut merged_with_last_token = false;
10523 if let Some(last_token) = line.back_mut() {
10524 if last_token.highlight == highlight {
10525 last_token.text.push_str(text);
10526 merged_with_last_token = true;
10527 }
10528 }
10529
10530 if !merged_with_last_token {
10531 line.push_back(Chunk {
10532 text: text.into(),
10533 highlight,
10534 });
10535 }
10536
10537 if chunk_lines.peek().is_some() {
10538 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10539 line.pop_front();
10540 }
10541 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10542 line.pop_back();
10543 }
10544
10545 lines.push(mem::take(&mut line));
10546 }
10547 }
10548 }
10549
10550 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10551 return;
10552 };
10553 cx.write_to_clipboard(ClipboardItem::new(lines));
10554 }
10555
10556 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10557 &self.inlay_hint_cache
10558 }
10559
10560 pub fn replay_insert_event(
10561 &mut self,
10562 text: &str,
10563 relative_utf16_range: Option<Range<isize>>,
10564 cx: &mut ViewContext<Self>,
10565 ) {
10566 if !self.input_enabled {
10567 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10568 return;
10569 }
10570 if let Some(relative_utf16_range) = relative_utf16_range {
10571 let selections = self.selections.all::<OffsetUtf16>(cx);
10572 self.change_selections(None, cx, |s| {
10573 let new_ranges = selections.into_iter().map(|range| {
10574 let start = OffsetUtf16(
10575 range
10576 .head()
10577 .0
10578 .saturating_add_signed(relative_utf16_range.start),
10579 );
10580 let end = OffsetUtf16(
10581 range
10582 .head()
10583 .0
10584 .saturating_add_signed(relative_utf16_range.end),
10585 );
10586 start..end
10587 });
10588 s.select_ranges(new_ranges);
10589 });
10590 }
10591
10592 self.handle_input(text, cx);
10593 }
10594
10595 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10596 let Some(project) = self.project.as_ref() else {
10597 return false;
10598 };
10599 let project = project.read(cx);
10600
10601 let mut supports = false;
10602 self.buffer().read(cx).for_each_buffer(|buffer| {
10603 if !supports {
10604 supports = project
10605 .language_servers_for_buffer(buffer.read(cx), cx)
10606 .any(
10607 |(_, server)| match server.capabilities().inlay_hint_provider {
10608 Some(lsp::OneOf::Left(enabled)) => enabled,
10609 Some(lsp::OneOf::Right(_)) => true,
10610 None => false,
10611 },
10612 )
10613 }
10614 });
10615 supports
10616 }
10617
10618 pub fn focus(&self, cx: &mut WindowContext) {
10619 cx.focus(&self.focus_handle)
10620 }
10621
10622 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10623 self.focus_handle.is_focused(cx)
10624 }
10625
10626 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10627 cx.emit(EditorEvent::Focused);
10628
10629 if let Some(rename) = self.pending_rename.as_ref() {
10630 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10631 cx.focus(&rename_editor_focus_handle);
10632 } else {
10633 if let Some(blame) = self.blame.as_ref() {
10634 blame.update(cx, GitBlame::focus)
10635 }
10636
10637 self.blink_manager.update(cx, BlinkManager::enable);
10638 self.show_cursor_names(cx);
10639 self.buffer.update(cx, |buffer, cx| {
10640 buffer.finalize_last_transaction(cx);
10641 if self.leader_peer_id.is_none() {
10642 buffer.set_active_selections(
10643 &self.selections.disjoint_anchors(),
10644 self.selections.line_mode,
10645 self.cursor_shape,
10646 cx,
10647 );
10648 }
10649 });
10650 }
10651 }
10652
10653 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10654 self.blink_manager.update(cx, BlinkManager::disable);
10655 self.buffer
10656 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10657
10658 if let Some(blame) = self.blame.as_ref() {
10659 blame.update(cx, GitBlame::blur)
10660 }
10661 self.hide_context_menu(cx);
10662 hide_hover(self, cx);
10663 cx.emit(EditorEvent::Blurred);
10664 cx.notify();
10665 }
10666
10667 pub fn register_action<A: Action>(
10668 &mut self,
10669 listener: impl Fn(&A, &mut WindowContext) + 'static,
10670 ) -> &mut Self {
10671 let listener = Arc::new(listener);
10672
10673 self.editor_actions.push(Box::new(move |cx| {
10674 let _view = cx.view().clone();
10675 let cx = cx.window_context();
10676 let listener = listener.clone();
10677 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10678 let action = action.downcast_ref().unwrap();
10679 if phase == DispatchPhase::Bubble {
10680 listener(action, cx)
10681 }
10682 })
10683 }));
10684 self
10685 }
10686}
10687
10688fn hunks_for_selections(
10689 multi_buffer_snapshot: &MultiBufferSnapshot,
10690 selections: &[Selection<Anchor>],
10691) -> Vec<DiffHunk<MultiBufferRow>> {
10692 let mut hunks = Vec::with_capacity(selections.len());
10693 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10694 HashMap::default();
10695 let buffer_rows_for_selections = selections.iter().map(|selection| {
10696 let head = selection.head();
10697 let tail = selection.tail();
10698 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
10699 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
10700 if start > end {
10701 end..start
10702 } else {
10703 start..end
10704 }
10705 });
10706
10707 for selected_multi_buffer_rows in buffer_rows_for_selections {
10708 let query_rows =
10709 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
10710 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10711 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10712 // when the caret is just above or just below the deleted hunk.
10713 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
10714 let related_to_selection = if allow_adjacent {
10715 hunk.associated_range.overlaps(&query_rows)
10716 || hunk.associated_range.start == query_rows.end
10717 || hunk.associated_range.end == query_rows.start
10718 } else {
10719 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10720 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10721 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10722 || selected_multi_buffer_rows.end == hunk.associated_range.start
10723 };
10724 if related_to_selection {
10725 if !processed_buffer_rows
10726 .entry(hunk.buffer_id)
10727 .or_default()
10728 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10729 {
10730 continue;
10731 }
10732 hunks.push(hunk);
10733 }
10734 }
10735 }
10736
10737 hunks
10738}
10739
10740pub trait CollaborationHub {
10741 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10742 fn user_participant_indices<'a>(
10743 &self,
10744 cx: &'a AppContext,
10745 ) -> &'a HashMap<u64, ParticipantIndex>;
10746 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10747}
10748
10749impl CollaborationHub for Model<Project> {
10750 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10751 self.read(cx).collaborators()
10752 }
10753
10754 fn user_participant_indices<'a>(
10755 &self,
10756 cx: &'a AppContext,
10757 ) -> &'a HashMap<u64, ParticipantIndex> {
10758 self.read(cx).user_store().read(cx).participant_indices()
10759 }
10760
10761 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10762 let this = self.read(cx);
10763 let user_ids = this.collaborators().values().map(|c| c.user_id);
10764 this.user_store().read_with(cx, |user_store, cx| {
10765 user_store.participant_names(user_ids, cx)
10766 })
10767 }
10768}
10769
10770pub trait CompletionProvider {
10771 fn completions(
10772 &self,
10773 buffer: &Model<Buffer>,
10774 buffer_position: text::Anchor,
10775 cx: &mut ViewContext<Editor>,
10776 ) -> Task<Result<Vec<Completion>>>;
10777
10778 fn resolve_completions(
10779 &self,
10780 buffer: Model<Buffer>,
10781 completion_indices: Vec<usize>,
10782 completions: Arc<RwLock<Box<[Completion]>>>,
10783 cx: &mut ViewContext<Editor>,
10784 ) -> Task<Result<bool>>;
10785
10786 fn apply_additional_edits_for_completion(
10787 &self,
10788 buffer: Model<Buffer>,
10789 completion: Completion,
10790 push_to_history: bool,
10791 cx: &mut ViewContext<Editor>,
10792 ) -> Task<Result<Option<language::Transaction>>>;
10793}
10794
10795impl CompletionProvider for Model<Project> {
10796 fn completions(
10797 &self,
10798 buffer: &Model<Buffer>,
10799 buffer_position: text::Anchor,
10800 cx: &mut ViewContext<Editor>,
10801 ) -> Task<Result<Vec<Completion>>> {
10802 self.update(cx, |project, cx| {
10803 project.completions(&buffer, buffer_position, cx)
10804 })
10805 }
10806
10807 fn resolve_completions(
10808 &self,
10809 buffer: Model<Buffer>,
10810 completion_indices: Vec<usize>,
10811 completions: Arc<RwLock<Box<[Completion]>>>,
10812 cx: &mut ViewContext<Editor>,
10813 ) -> Task<Result<bool>> {
10814 self.update(cx, |project, cx| {
10815 project.resolve_completions(buffer, completion_indices, completions, cx)
10816 })
10817 }
10818
10819 fn apply_additional_edits_for_completion(
10820 &self,
10821 buffer: Model<Buffer>,
10822 completion: Completion,
10823 push_to_history: bool,
10824 cx: &mut ViewContext<Editor>,
10825 ) -> Task<Result<Option<language::Transaction>>> {
10826 self.update(cx, |project, cx| {
10827 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10828 })
10829 }
10830}
10831
10832fn inlay_hint_settings(
10833 location: Anchor,
10834 snapshot: &MultiBufferSnapshot,
10835 cx: &mut ViewContext<'_, Editor>,
10836) -> InlayHintSettings {
10837 let file = snapshot.file_at(location);
10838 let language = snapshot.language_at(location);
10839 let settings = all_language_settings(file, cx);
10840 settings
10841 .language(language.map(|l| l.name()).as_deref())
10842 .inlay_hints
10843}
10844
10845fn consume_contiguous_rows(
10846 contiguous_row_selections: &mut Vec<Selection<Point>>,
10847 selection: &Selection<Point>,
10848 display_map: &DisplaySnapshot,
10849 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10850) -> (MultiBufferRow, MultiBufferRow) {
10851 contiguous_row_selections.push(selection.clone());
10852 let start_row = MultiBufferRow(selection.start.row);
10853 let mut end_row = ending_row(selection, display_map);
10854
10855 while let Some(next_selection) = selections.peek() {
10856 if next_selection.start.row <= end_row.0 {
10857 end_row = ending_row(next_selection, display_map);
10858 contiguous_row_selections.push(selections.next().unwrap().clone());
10859 } else {
10860 break;
10861 }
10862 }
10863 (start_row, end_row)
10864}
10865
10866fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
10867 if next_selection.end.column > 0 || next_selection.is_empty() {
10868 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
10869 } else {
10870 MultiBufferRow(next_selection.end.row)
10871 }
10872}
10873
10874impl EditorSnapshot {
10875 pub fn remote_selections_in_range<'a>(
10876 &'a self,
10877 range: &'a Range<Anchor>,
10878 collaboration_hub: &dyn CollaborationHub,
10879 cx: &'a AppContext,
10880 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10881 let participant_names = collaboration_hub.user_names(cx);
10882 let participant_indices = collaboration_hub.user_participant_indices(cx);
10883 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10884 let collaborators_by_replica_id = collaborators_by_peer_id
10885 .iter()
10886 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10887 .collect::<HashMap<_, _>>();
10888 self.buffer_snapshot
10889 .remote_selections_in_range(range)
10890 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10891 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10892 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10893 let user_name = participant_names.get(&collaborator.user_id).cloned();
10894 Some(RemoteSelection {
10895 replica_id,
10896 selection,
10897 cursor_shape,
10898 line_mode,
10899 participant_index,
10900 peer_id: collaborator.peer_id,
10901 user_name,
10902 })
10903 })
10904 }
10905
10906 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10907 self.display_snapshot.buffer_snapshot.language_at(position)
10908 }
10909
10910 pub fn is_focused(&self) -> bool {
10911 self.is_focused
10912 }
10913
10914 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10915 self.placeholder_text.as_ref()
10916 }
10917
10918 pub fn scroll_position(&self) -> gpui::Point<f32> {
10919 self.scroll_anchor.scroll_position(&self.display_snapshot)
10920 }
10921
10922 pub fn gutter_dimensions(
10923 &self,
10924 font_id: FontId,
10925 font_size: Pixels,
10926 em_width: Pixels,
10927 max_line_number_width: Pixels,
10928 cx: &AppContext,
10929 ) -> GutterDimensions {
10930 if !self.show_gutter {
10931 return GutterDimensions::default();
10932 }
10933 let descent = cx.text_system().descent(font_id, font_size);
10934
10935 let show_git_gutter = matches!(
10936 ProjectSettings::get_global(cx).git.git_gutter,
10937 Some(GitGutterSetting::TrackedFiles)
10938 );
10939 let gutter_settings = EditorSettings::get_global(cx).gutter;
10940 let gutter_lines_enabled = gutter_settings.line_numbers;
10941 let line_gutter_width = if gutter_lines_enabled {
10942 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10943 let min_width_for_number_on_gutter = em_width * 4.0;
10944 max_line_number_width.max(min_width_for_number_on_gutter)
10945 } else {
10946 0.0.into()
10947 };
10948
10949 let git_blame_entries_width = self
10950 .render_git_blame_gutter
10951 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10952
10953 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10954 left_padding += if gutter_settings.code_actions {
10955 em_width * 3.0
10956 } else if show_git_gutter && gutter_lines_enabled {
10957 em_width * 2.0
10958 } else if show_git_gutter || gutter_lines_enabled {
10959 em_width
10960 } else {
10961 px(0.)
10962 };
10963
10964 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10965 em_width * 4.0
10966 } else if gutter_settings.folds {
10967 em_width * 3.0
10968 } else if gutter_lines_enabled {
10969 em_width
10970 } else {
10971 px(0.)
10972 };
10973
10974 GutterDimensions {
10975 left_padding,
10976 right_padding,
10977 width: line_gutter_width + left_padding + right_padding,
10978 margin: -descent,
10979 git_blame_entries_width,
10980 }
10981 }
10982}
10983
10984impl Deref for EditorSnapshot {
10985 type Target = DisplaySnapshot;
10986
10987 fn deref(&self) -> &Self::Target {
10988 &self.display_snapshot
10989 }
10990}
10991
10992#[derive(Clone, Debug, PartialEq, Eq)]
10993pub enum EditorEvent {
10994 InputIgnored {
10995 text: Arc<str>,
10996 },
10997 InputHandled {
10998 utf16_range_to_replace: Option<Range<isize>>,
10999 text: Arc<str>,
11000 },
11001 ExcerptsAdded {
11002 buffer: Model<Buffer>,
11003 predecessor: ExcerptId,
11004 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11005 },
11006 ExcerptsRemoved {
11007 ids: Vec<ExcerptId>,
11008 },
11009 BufferEdited,
11010 Edited,
11011 Reparsed,
11012 Focused,
11013 Blurred,
11014 DirtyChanged,
11015 Saved,
11016 TitleChanged,
11017 DiffBaseChanged,
11018 SelectionsChanged {
11019 local: bool,
11020 },
11021 ScrollPositionChanged {
11022 local: bool,
11023 autoscroll: bool,
11024 },
11025 Closed,
11026 TransactionUndone {
11027 transaction_id: clock::Lamport,
11028 },
11029 TransactionBegun {
11030 transaction_id: clock::Lamport,
11031 },
11032}
11033
11034impl EventEmitter<EditorEvent> for Editor {}
11035
11036impl FocusableView for Editor {
11037 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11038 self.focus_handle.clone()
11039 }
11040}
11041
11042impl Render for Editor {
11043 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11044 let settings = ThemeSettings::get_global(cx);
11045
11046 let text_style = match self.mode {
11047 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11048 color: cx.theme().colors().editor_foreground,
11049 font_family: settings.ui_font.family.clone(),
11050 font_features: settings.ui_font.features.clone(),
11051 font_size: rems(0.875).into(),
11052 font_weight: FontWeight::NORMAL,
11053 font_style: FontStyle::Normal,
11054 line_height: relative(settings.buffer_line_height.value()),
11055 background_color: None,
11056 underline: None,
11057 strikethrough: None,
11058 white_space: WhiteSpace::Normal,
11059 },
11060 EditorMode::Full => TextStyle {
11061 color: cx.theme().colors().editor_foreground,
11062 font_family: settings.buffer_font.family.clone(),
11063 font_features: settings.buffer_font.features.clone(),
11064 font_size: settings.buffer_font_size(cx).into(),
11065 font_weight: FontWeight::NORMAL,
11066 font_style: FontStyle::Normal,
11067 line_height: relative(settings.buffer_line_height.value()),
11068 background_color: None,
11069 underline: None,
11070 strikethrough: None,
11071 white_space: WhiteSpace::Normal,
11072 },
11073 };
11074
11075 let background = match self.mode {
11076 EditorMode::SingleLine => cx.theme().system().transparent,
11077 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11078 EditorMode::Full => cx.theme().colors().editor_background,
11079 };
11080
11081 EditorElement::new(
11082 cx.view(),
11083 EditorStyle {
11084 background,
11085 local_player: cx.theme().players().local(),
11086 text: text_style,
11087 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11088 syntax: cx.theme().syntax().clone(),
11089 status: cx.theme().status().clone(),
11090 inlay_hints_style: HighlightStyle {
11091 color: Some(cx.theme().status().hint),
11092 ..HighlightStyle::default()
11093 },
11094 suggestions_style: HighlightStyle {
11095 color: Some(cx.theme().status().predictive),
11096 ..HighlightStyle::default()
11097 },
11098 },
11099 )
11100 }
11101}
11102
11103impl ViewInputHandler for Editor {
11104 fn text_for_range(
11105 &mut self,
11106 range_utf16: Range<usize>,
11107 cx: &mut ViewContext<Self>,
11108 ) -> Option<String> {
11109 Some(
11110 self.buffer
11111 .read(cx)
11112 .read(cx)
11113 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11114 .collect(),
11115 )
11116 }
11117
11118 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11119 // Prevent the IME menu from appearing when holding down an alphabetic key
11120 // while input is disabled.
11121 if !self.input_enabled {
11122 return None;
11123 }
11124
11125 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11126 Some(range.start.0..range.end.0)
11127 }
11128
11129 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11130 let snapshot = self.buffer.read(cx).read(cx);
11131 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11132 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11133 }
11134
11135 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11136 self.clear_highlights::<InputComposition>(cx);
11137 self.ime_transaction.take();
11138 }
11139
11140 fn replace_text_in_range(
11141 &mut self,
11142 range_utf16: Option<Range<usize>>,
11143 text: &str,
11144 cx: &mut ViewContext<Self>,
11145 ) {
11146 if !self.input_enabled {
11147 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11148 return;
11149 }
11150
11151 self.transact(cx, |this, cx| {
11152 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11153 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11154 Some(this.selection_replacement_ranges(range_utf16, cx))
11155 } else {
11156 this.marked_text_ranges(cx)
11157 };
11158
11159 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11160 let newest_selection_id = this.selections.newest_anchor().id;
11161 this.selections
11162 .all::<OffsetUtf16>(cx)
11163 .iter()
11164 .zip(ranges_to_replace.iter())
11165 .find_map(|(selection, range)| {
11166 if selection.id == newest_selection_id {
11167 Some(
11168 (range.start.0 as isize - selection.head().0 as isize)
11169 ..(range.end.0 as isize - selection.head().0 as isize),
11170 )
11171 } else {
11172 None
11173 }
11174 })
11175 });
11176
11177 cx.emit(EditorEvent::InputHandled {
11178 utf16_range_to_replace: range_to_replace,
11179 text: text.into(),
11180 });
11181
11182 if let Some(new_selected_ranges) = new_selected_ranges {
11183 this.change_selections(None, cx, |selections| {
11184 selections.select_ranges(new_selected_ranges)
11185 });
11186 this.backspace(&Default::default(), cx);
11187 }
11188
11189 this.handle_input(text, cx);
11190 });
11191
11192 if let Some(transaction) = self.ime_transaction {
11193 self.buffer.update(cx, |buffer, cx| {
11194 buffer.group_until_transaction(transaction, cx);
11195 });
11196 }
11197
11198 self.unmark_text(cx);
11199 }
11200
11201 fn replace_and_mark_text_in_range(
11202 &mut self,
11203 range_utf16: Option<Range<usize>>,
11204 text: &str,
11205 new_selected_range_utf16: Option<Range<usize>>,
11206 cx: &mut ViewContext<Self>,
11207 ) {
11208 if !self.input_enabled {
11209 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11210 return;
11211 }
11212
11213 let transaction = self.transact(cx, |this, cx| {
11214 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11215 let snapshot = this.buffer.read(cx).read(cx);
11216 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11217 for marked_range in &mut marked_ranges {
11218 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11219 marked_range.start.0 += relative_range_utf16.start;
11220 marked_range.start =
11221 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11222 marked_range.end =
11223 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11224 }
11225 }
11226 Some(marked_ranges)
11227 } else if let Some(range_utf16) = range_utf16 {
11228 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11229 Some(this.selection_replacement_ranges(range_utf16, cx))
11230 } else {
11231 None
11232 };
11233
11234 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11235 let newest_selection_id = this.selections.newest_anchor().id;
11236 this.selections
11237 .all::<OffsetUtf16>(cx)
11238 .iter()
11239 .zip(ranges_to_replace.iter())
11240 .find_map(|(selection, range)| {
11241 if selection.id == newest_selection_id {
11242 Some(
11243 (range.start.0 as isize - selection.head().0 as isize)
11244 ..(range.end.0 as isize - selection.head().0 as isize),
11245 )
11246 } else {
11247 None
11248 }
11249 })
11250 });
11251
11252 cx.emit(EditorEvent::InputHandled {
11253 utf16_range_to_replace: range_to_replace,
11254 text: text.into(),
11255 });
11256
11257 if let Some(ranges) = ranges_to_replace {
11258 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11259 }
11260
11261 let marked_ranges = {
11262 let snapshot = this.buffer.read(cx).read(cx);
11263 this.selections
11264 .disjoint_anchors()
11265 .iter()
11266 .map(|selection| {
11267 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11268 })
11269 .collect::<Vec<_>>()
11270 };
11271
11272 if text.is_empty() {
11273 this.unmark_text(cx);
11274 } else {
11275 this.highlight_text::<InputComposition>(
11276 marked_ranges.clone(),
11277 HighlightStyle {
11278 underline: Some(UnderlineStyle {
11279 thickness: px(1.),
11280 color: None,
11281 wavy: false,
11282 }),
11283 ..Default::default()
11284 },
11285 cx,
11286 );
11287 }
11288
11289 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11290 let use_autoclose = this.use_autoclose;
11291 this.set_use_autoclose(false);
11292 this.handle_input(text, cx);
11293 this.set_use_autoclose(use_autoclose);
11294
11295 if let Some(new_selected_range) = new_selected_range_utf16 {
11296 let snapshot = this.buffer.read(cx).read(cx);
11297 let new_selected_ranges = marked_ranges
11298 .into_iter()
11299 .map(|marked_range| {
11300 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11301 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11302 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11303 snapshot.clip_offset_utf16(new_start, Bias::Left)
11304 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11305 })
11306 .collect::<Vec<_>>();
11307
11308 drop(snapshot);
11309 this.change_selections(None, cx, |selections| {
11310 selections.select_ranges(new_selected_ranges)
11311 });
11312 }
11313 });
11314
11315 self.ime_transaction = self.ime_transaction.or(transaction);
11316 if let Some(transaction) = self.ime_transaction {
11317 self.buffer.update(cx, |buffer, cx| {
11318 buffer.group_until_transaction(transaction, cx);
11319 });
11320 }
11321
11322 if self.text_highlights::<InputComposition>(cx).is_none() {
11323 self.ime_transaction.take();
11324 }
11325 }
11326
11327 fn bounds_for_range(
11328 &mut self,
11329 range_utf16: Range<usize>,
11330 element_bounds: gpui::Bounds<Pixels>,
11331 cx: &mut ViewContext<Self>,
11332 ) -> Option<gpui::Bounds<Pixels>> {
11333 let text_layout_details = self.text_layout_details(cx);
11334 let style = &text_layout_details.editor_style;
11335 let font_id = cx.text_system().resolve_font(&style.text.font());
11336 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11337 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11338 let em_width = cx
11339 .text_system()
11340 .typographic_bounds(font_id, font_size, 'm')
11341 .unwrap()
11342 .size
11343 .width;
11344
11345 let snapshot = self.snapshot(cx);
11346 let scroll_position = snapshot.scroll_position();
11347 let scroll_left = scroll_position.x * em_width;
11348
11349 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11350 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11351 + self.gutter_dimensions.width;
11352 let y = line_height * (start.row().as_f32() - scroll_position.y);
11353
11354 Some(Bounds {
11355 origin: element_bounds.origin + point(x, y),
11356 size: size(em_width, line_height),
11357 })
11358 }
11359}
11360
11361trait SelectionExt {
11362 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11363 fn spanned_rows(
11364 &self,
11365 include_end_if_at_line_start: bool,
11366 map: &DisplaySnapshot,
11367 ) -> Range<MultiBufferRow>;
11368}
11369
11370impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11371 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11372 let start = self
11373 .start
11374 .to_point(&map.buffer_snapshot)
11375 .to_display_point(map);
11376 let end = self
11377 .end
11378 .to_point(&map.buffer_snapshot)
11379 .to_display_point(map);
11380 if self.reversed {
11381 end..start
11382 } else {
11383 start..end
11384 }
11385 }
11386
11387 fn spanned_rows(
11388 &self,
11389 include_end_if_at_line_start: bool,
11390 map: &DisplaySnapshot,
11391 ) -> Range<MultiBufferRow> {
11392 let start = self.start.to_point(&map.buffer_snapshot);
11393 let mut end = self.end.to_point(&map.buffer_snapshot);
11394 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11395 end.row -= 1;
11396 }
11397
11398 let buffer_start = map.prev_line_boundary(start).0;
11399 let buffer_end = map.next_line_boundary(end).0;
11400 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11401 }
11402}
11403
11404impl<T: InvalidationRegion> InvalidationStack<T> {
11405 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11406 where
11407 S: Clone + ToOffset,
11408 {
11409 while let Some(region) = self.last() {
11410 let all_selections_inside_invalidation_ranges =
11411 if selections.len() == region.ranges().len() {
11412 selections
11413 .iter()
11414 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11415 .all(|(selection, invalidation_range)| {
11416 let head = selection.head().to_offset(buffer);
11417 invalidation_range.start <= head && invalidation_range.end >= head
11418 })
11419 } else {
11420 false
11421 };
11422
11423 if all_selections_inside_invalidation_ranges {
11424 break;
11425 } else {
11426 self.pop();
11427 }
11428 }
11429 }
11430}
11431
11432impl<T> Default for InvalidationStack<T> {
11433 fn default() -> Self {
11434 Self(Default::default())
11435 }
11436}
11437
11438impl<T> Deref for InvalidationStack<T> {
11439 type Target = Vec<T>;
11440
11441 fn deref(&self) -> &Self::Target {
11442 &self.0
11443 }
11444}
11445
11446impl<T> DerefMut for InvalidationStack<T> {
11447 fn deref_mut(&mut self) -> &mut Self::Target {
11448 &mut self.0
11449 }
11450}
11451
11452impl InvalidationRegion for SnippetState {
11453 fn ranges(&self) -> &[Range<Anchor>] {
11454 &self.ranges[self.active_index]
11455 }
11456}
11457
11458pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11459 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11460
11461 Box::new(move |cx: &mut BlockContext| {
11462 let group_id: SharedString = cx.block_id.to_string().into();
11463
11464 let mut text_style = cx.text_style().clone();
11465 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11466 let theme_settings = ThemeSettings::get_global(cx);
11467 text_style.font_family = theme_settings.buffer_font.family.clone();
11468 text_style.font_style = theme_settings.buffer_font.style;
11469 text_style.font_features = theme_settings.buffer_font.features.clone();
11470 text_style.font_weight = theme_settings.buffer_font.weight;
11471
11472 let multi_line_diagnostic = diagnostic.message.contains('\n');
11473
11474 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11475 if multi_line_diagnostic {
11476 v_flex()
11477 } else {
11478 h_flex()
11479 }
11480 .children(diagnostic.is_primary.then(|| {
11481 IconButton::new(("close-block", block_id), IconName::XCircle)
11482 .icon_color(Color::Muted)
11483 .size(ButtonSize::Compact)
11484 .style(ButtonStyle::Transparent)
11485 .visible_on_hover(group_id.clone())
11486 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11487 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11488 }))
11489 .child(
11490 IconButton::new(("copy-block", block_id), IconName::Copy)
11491 .icon_color(Color::Muted)
11492 .size(ButtonSize::Compact)
11493 .style(ButtonStyle::Transparent)
11494 .visible_on_hover(group_id.clone())
11495 .on_click({
11496 let message = diagnostic.message.clone();
11497 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11498 })
11499 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11500 )
11501 };
11502
11503 let icon_size = buttons(&diagnostic, cx.block_id)
11504 .into_any_element()
11505 .layout_as_root(AvailableSpace::min_size(), cx);
11506
11507 h_flex()
11508 .id(cx.block_id)
11509 .group(group_id.clone())
11510 .relative()
11511 .size_full()
11512 .pl(cx.gutter_dimensions.width)
11513 .w(cx.max_width + cx.gutter_dimensions.width)
11514 .child(
11515 div()
11516 .flex()
11517 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11518 .flex_shrink(),
11519 )
11520 .child(buttons(&diagnostic, cx.block_id))
11521 .child(div().flex().flex_shrink_0().child(
11522 StyledText::new(text_without_backticks.clone()).with_highlights(
11523 &text_style,
11524 code_ranges.iter().map(|range| {
11525 (
11526 range.clone(),
11527 HighlightStyle {
11528 font_weight: Some(FontWeight::BOLD),
11529 ..Default::default()
11530 },
11531 )
11532 }),
11533 ),
11534 ))
11535 .into_any_element()
11536 })
11537}
11538
11539pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11540 let mut text_without_backticks = String::new();
11541 let mut code_ranges = Vec::new();
11542
11543 if let Some(source) = &diagnostic.source {
11544 text_without_backticks.push_str(&source);
11545 code_ranges.push(0..source.len());
11546 text_without_backticks.push_str(": ");
11547 }
11548
11549 let mut prev_offset = 0;
11550 let mut in_code_block = false;
11551 for (ix, _) in diagnostic
11552 .message
11553 .match_indices('`')
11554 .chain([(diagnostic.message.len(), "")])
11555 {
11556 let prev_len = text_without_backticks.len();
11557 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11558 prev_offset = ix + 1;
11559 if in_code_block {
11560 code_ranges.push(prev_len..text_without_backticks.len());
11561 in_code_block = false;
11562 } else {
11563 in_code_block = true;
11564 }
11565 }
11566
11567 (text_without_backticks.into(), code_ranges)
11568}
11569
11570fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11571 match (severity, valid) {
11572 (DiagnosticSeverity::ERROR, true) => colors.error,
11573 (DiagnosticSeverity::ERROR, false) => colors.error,
11574 (DiagnosticSeverity::WARNING, true) => colors.warning,
11575 (DiagnosticSeverity::WARNING, false) => colors.warning,
11576 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11577 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11578 (DiagnosticSeverity::HINT, true) => colors.info,
11579 (DiagnosticSeverity::HINT, false) => colors.info,
11580 _ => colors.ignored,
11581 }
11582}
11583
11584pub fn styled_runs_for_code_label<'a>(
11585 label: &'a CodeLabel,
11586 syntax_theme: &'a theme::SyntaxTheme,
11587) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11588 let fade_out = HighlightStyle {
11589 fade_out: Some(0.35),
11590 ..Default::default()
11591 };
11592
11593 let mut prev_end = label.filter_range.end;
11594 label
11595 .runs
11596 .iter()
11597 .enumerate()
11598 .flat_map(move |(ix, (range, highlight_id))| {
11599 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11600 style
11601 } else {
11602 return Default::default();
11603 };
11604 let mut muted_style = style;
11605 muted_style.highlight(fade_out);
11606
11607 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11608 if range.start >= label.filter_range.end {
11609 if range.start > prev_end {
11610 runs.push((prev_end..range.start, fade_out));
11611 }
11612 runs.push((range.clone(), muted_style));
11613 } else if range.end <= label.filter_range.end {
11614 runs.push((range.clone(), style));
11615 } else {
11616 runs.push((range.start..label.filter_range.end, style));
11617 runs.push((label.filter_range.end..range.end, muted_style));
11618 }
11619 prev_end = cmp::max(prev_end, range.end);
11620
11621 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11622 runs.push((prev_end..label.text.len(), fade_out));
11623 }
11624
11625 runs
11626 })
11627}
11628
11629pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11630 let mut prev_index = 0;
11631 let mut prev_codepoint: Option<char> = None;
11632 text.char_indices()
11633 .chain([(text.len(), '\0')])
11634 .filter_map(move |(index, codepoint)| {
11635 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11636 let is_boundary = index == text.len()
11637 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11638 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11639 if is_boundary {
11640 let chunk = &text[prev_index..index];
11641 prev_index = index;
11642 Some(chunk)
11643 } else {
11644 None
11645 }
11646 })
11647}
11648
11649trait RangeToAnchorExt {
11650 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11651}
11652
11653impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11654 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11655 let start_offset = self.start.to_offset(snapshot);
11656 let end_offset = self.end.to_offset(snapshot);
11657 if start_offset == end_offset {
11658 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11659 } else {
11660 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11661 }
11662 }
11663}
11664
11665pub trait RowExt {
11666 fn as_f32(&self) -> f32;
11667
11668 fn next_row(&self) -> Self;
11669
11670 fn previous_row(&self) -> Self;
11671
11672 fn minus(&self, other: Self) -> u32;
11673}
11674
11675impl RowExt for DisplayRow {
11676 fn as_f32(&self) -> f32 {
11677 self.0 as f32
11678 }
11679
11680 fn next_row(&self) -> Self {
11681 Self(self.0 + 1)
11682 }
11683
11684 fn previous_row(&self) -> Self {
11685 Self(self.0.saturating_sub(1))
11686 }
11687
11688 fn minus(&self, other: Self) -> u32 {
11689 self.0 - other.0
11690 }
11691}
11692
11693impl RowExt for MultiBufferRow {
11694 fn as_f32(&self) -> f32 {
11695 self.0 as f32
11696 }
11697
11698 fn next_row(&self) -> Self {
11699 Self(self.0 + 1)
11700 }
11701
11702 fn previous_row(&self) -> Self {
11703 Self(self.0.saturating_sub(1))
11704 }
11705
11706 fn minus(&self, other: Self) -> u32 {
11707 self.0 - other.0
11708 }
11709}
11710
11711trait RowRangeExt {
11712 type Row;
11713
11714 fn len(&self) -> usize;
11715
11716 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
11717}
11718
11719impl RowRangeExt for Range<MultiBufferRow> {
11720 type Row = MultiBufferRow;
11721
11722 fn len(&self) -> usize {
11723 (self.end.0 - self.start.0) as usize
11724 }
11725
11726 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
11727 (self.start.0..self.end.0).map(MultiBufferRow)
11728 }
11729}
11730
11731impl RowRangeExt for Range<DisplayRow> {
11732 type Row = DisplayRow;
11733
11734 fn len(&self) -> usize {
11735 (self.end.0 - self.start.0) as usize
11736 }
11737
11738 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
11739 (self.start.0..self.end.0).map(DisplayRow)
11740 }
11741}
11742
11743fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
11744 if hunk.diff_base_byte_range.is_empty() {
11745 DiffHunkStatus::Added
11746 } else if hunk.associated_range.is_empty() {
11747 DiffHunkStatus::Removed
11748 } else {
11749 DiffHunkStatus::Modified
11750 }
11751}