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