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 indent_guides;
30mod inline_completion_provider;
31pub mod items;
32mod mouse_context_menu;
33pub mod movement;
34mod persistence;
35mod rust_analyzer_ext;
36pub mod scroll;
37mod selections_collection;
38pub mod tasks;
39
40#[cfg(test)]
41mod editor_tests;
42#[cfg(any(test, feature = "test-support"))]
43pub mod test;
44use ::git::diff::{DiffHunk, DiffHunkStatus};
45use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
46pub(crate) use actions::*;
47use aho_corasick::AhoCorasick;
48use anyhow::{anyhow, Context as _, Result};
49use blink_manager::BlinkManager;
50use client::{Collaborator, ParticipantIndex};
51use clock::ReplicaId;
52use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
53use convert_case::{Case, Casing};
54use debounced_delay::DebouncedDelay;
55use display_map::*;
56pub use display_map::{DisplayPoint, FoldPlaceholder};
57use editor_settings::CurrentLineHighlight;
58pub use editor_settings::EditorSettings;
59use element::LineWithInvisibles;
60pub use element::{
61 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
62};
63use futures::FutureExt;
64use fuzzy::{StringMatch, StringMatchCandidate};
65use git::blame::GitBlame;
66use git::diff_hunk_to_display;
67use gpui::{
68 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
69 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
70 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
71 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
72 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
73 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
74 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
75};
76use highlight_matching_bracket::refresh_matching_bracket_highlights;
77use hover_popover::{hide_hover, HoverState};
78use hunk_diff::ExpandedHunks;
79pub(crate) use hunk_diff::HunkToExpand;
80use indent_guides::ActiveIndentGuidesState;
81use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
82pub use inline_completion_provider::*;
83pub use items::MAX_TAB_TITLE_LEN;
84use itertools::Itertools;
85use language::{
86 char_kind,
87 language_settings::{self, all_language_settings, InlayHintSettings},
88 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
89 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
90 Point, Selection, SelectionGoal, TransactionId,
91};
92use language::{BufferRow, Runnable, RunnableRange};
93use task::{ResolvedTask, TaskTemplate, TaskVariables};
94
95use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
96use lsp::{DiagnosticSeverity, LanguageServerId};
97use mouse_context_menu::MouseContextMenu;
98use movement::TextLayoutDetails;
99pub use multi_buffer::{
100 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
101 ToPoint,
102};
103use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
104use ordered_float::OrderedFloat;
105use parking_lot::{Mutex, RwLock};
106use project::project_settings::{GitGutterSetting, ProjectSettings};
107use project::{
108 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
109 ProjectTransaction, TaskSourceKind, WorktreeId,
110};
111use rand::prelude::*;
112use rpc::{proto::*, ErrorExt};
113use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
114use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
115use serde::{Deserialize, Serialize};
116use settings::{Settings, SettingsStore};
117use smallvec::SmallVec;
118use snippet::Snippet;
119use std::ops::Not as _;
120use std::{
121 any::TypeId,
122 borrow::Cow,
123 cmp::{self, Ordering, Reverse},
124 mem,
125 num::NonZeroU32,
126 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
127 path::Path,
128 sync::Arc,
129 time::{Duration, Instant},
130};
131pub use sum_tree::Bias;
132use sum_tree::TreeMap;
133use text::{BufferId, OffsetUtf16, Rope};
134use theme::{
135 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
136 ThemeColors, ThemeSettings,
137};
138use ui::{
139 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
140 Tooltip,
141};
142use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
143use workspace::item::{ItemHandle, PreviewTabsSettings};
144use workspace::notifications::{DetachAndPromptErr, NotificationId};
145use workspace::{
146 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
147};
148use workspace::{OpenInTerminal, OpenTerminal, Toast};
149
150use crate::hover_links::find_url;
151
152pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
153const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
154const MAX_LINE_LEN: usize = 1024;
155const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
156const MAX_SELECTION_HISTORY_LEN: usize = 1024;
157pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
158#[doc(hidden)]
159pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
160#[doc(hidden)]
161pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
162
163pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
164
165pub fn render_parsed_markdown(
166 element_id: impl Into<ElementId>,
167 parsed: &language::ParsedMarkdown,
168 editor_style: &EditorStyle,
169 workspace: Option<WeakView<Workspace>>,
170 cx: &mut WindowContext,
171) -> InteractiveText {
172 let code_span_background_color = cx
173 .theme()
174 .colors()
175 .editor_document_highlight_read_background;
176
177 let highlights = gpui::combine_highlights(
178 parsed.highlights.iter().filter_map(|(range, highlight)| {
179 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
180 Some((range.clone(), highlight))
181 }),
182 parsed
183 .regions
184 .iter()
185 .zip(&parsed.region_ranges)
186 .filter_map(|(region, range)| {
187 if region.code {
188 Some((
189 range.clone(),
190 HighlightStyle {
191 background_color: Some(code_span_background_color),
192 ..Default::default()
193 },
194 ))
195 } else {
196 None
197 }
198 }),
199 );
200
201 let mut links = Vec::new();
202 let mut link_ranges = Vec::new();
203 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
204 if let Some(link) = region.link.clone() {
205 links.push(link);
206 link_ranges.push(range.clone());
207 }
208 }
209
210 InteractiveText::new(
211 element_id,
212 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
213 )
214 .on_click(link_ranges, move |clicked_range_ix, cx| {
215 match &links[clicked_range_ix] {
216 markdown::Link::Web { url } => cx.open_url(url),
217 markdown::Link::Path { path } => {
218 if let Some(workspace) = &workspace {
219 _ = workspace.update(cx, |workspace, cx| {
220 workspace.open_abs_path(path.clone(), false, cx).detach();
221 });
222 }
223 }
224 }
225 })
226}
227
228#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
229pub(crate) enum InlayId {
230 Suggestion(usize),
231 Hint(usize),
232}
233
234impl InlayId {
235 fn id(&self) -> usize {
236 match self {
237 Self::Suggestion(id) => *id,
238 Self::Hint(id) => *id,
239 }
240 }
241}
242
243enum DiffRowHighlight {}
244enum DocumentHighlightRead {}
245enum DocumentHighlightWrite {}
246enum InputComposition {}
247
248#[derive(Copy, Clone, PartialEq, Eq)]
249pub enum Direction {
250 Prev,
251 Next,
252}
253
254pub fn init_settings(cx: &mut AppContext) {
255 EditorSettings::register(cx);
256}
257
258pub fn init(cx: &mut AppContext) {
259 init_settings(cx);
260
261 workspace::register_project_item::<Editor>(cx);
262 workspace::register_followable_item::<Editor>(cx);
263 workspace::register_deserializable_item::<Editor>(cx);
264 cx.observe_new_views(
265 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
266 workspace.register_action(Editor::new_file);
267 workspace.register_action(Editor::new_file_in_direction);
268 },
269 )
270 .detach();
271
272 cx.on_action(move |_: &workspace::NewFile, cx| {
273 let app_state = workspace::AppState::global(cx);
274 if let Some(app_state) = app_state.upgrade() {
275 workspace::open_new(app_state, cx, |workspace, cx| {
276 Editor::new_file(workspace, &Default::default(), cx)
277 })
278 .detach();
279 }
280 });
281 cx.on_action(move |_: &workspace::NewWindow, cx| {
282 let app_state = workspace::AppState::global(cx);
283 if let Some(app_state) = app_state.upgrade() {
284 workspace::open_new(app_state, cx, |workspace, cx| {
285 Editor::new_file(workspace, &Default::default(), cx)
286 })
287 .detach();
288 }
289 });
290}
291
292pub struct SearchWithinRange;
293
294trait InvalidationRegion {
295 fn ranges(&self) -> &[Range<Anchor>];
296}
297
298#[derive(Clone, Debug, PartialEq)]
299pub enum SelectPhase {
300 Begin {
301 position: DisplayPoint,
302 add: bool,
303 click_count: usize,
304 },
305 BeginColumnar {
306 position: DisplayPoint,
307 reset: bool,
308 goal_column: u32,
309 },
310 Extend {
311 position: DisplayPoint,
312 click_count: usize,
313 },
314 Update {
315 position: DisplayPoint,
316 goal_column: u32,
317 scroll_delta: gpui::Point<f32>,
318 },
319 End,
320}
321
322#[derive(Clone, Debug)]
323pub enum SelectMode {
324 Character,
325 Word(Range<Anchor>),
326 Line(Range<Anchor>),
327 All,
328}
329
330#[derive(Copy, Clone, PartialEq, Eq, Debug)]
331pub enum EditorMode {
332 SingleLine,
333 AutoHeight { max_lines: usize },
334 Full,
335}
336
337#[derive(Clone, Debug)]
338pub enum SoftWrap {
339 None,
340 PreferLine,
341 EditorWidth,
342 Column(u32),
343}
344
345#[derive(Clone)]
346pub struct EditorStyle {
347 pub background: Hsla,
348 pub local_player: PlayerColor,
349 pub text: TextStyle,
350 pub scrollbar_width: Pixels,
351 pub syntax: Arc<SyntaxTheme>,
352 pub status: StatusColors,
353 pub inlay_hints_style: HighlightStyle,
354 pub suggestions_style: HighlightStyle,
355}
356
357impl Default for EditorStyle {
358 fn default() -> Self {
359 Self {
360 background: Hsla::default(),
361 local_player: PlayerColor::default(),
362 text: TextStyle::default(),
363 scrollbar_width: Pixels::default(),
364 syntax: Default::default(),
365 // HACK: Status colors don't have a real default.
366 // We should look into removing the status colors from the editor
367 // style and retrieve them directly from the theme.
368 status: StatusColors::dark(),
369 inlay_hints_style: HighlightStyle::default(),
370 suggestions_style: HighlightStyle::default(),
371 }
372 }
373}
374
375type CompletionId = usize;
376
377// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
378// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
379
380type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
381
382struct ScrollbarMarkerState {
383 scrollbar_size: Size<Pixels>,
384 dirty: bool,
385 markers: Arc<[PaintQuad]>,
386 pending_refresh: Option<Task<Result<()>>>,
387}
388
389impl ScrollbarMarkerState {
390 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
391 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
392 }
393}
394
395impl Default for ScrollbarMarkerState {
396 fn default() -> Self {
397 Self {
398 scrollbar_size: Size::default(),
399 dirty: false,
400 markers: Arc::from([]),
401 pending_refresh: None,
402 }
403 }
404}
405
406#[derive(Clone, Debug)]
407struct RunnableTasks {
408 templates: Vec<(TaskSourceKind, TaskTemplate)>,
409 offset: MultiBufferOffset,
410 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
411 column: u32,
412 // Values of all named captures, including those starting with '_'
413 extra_variables: HashMap<String, String>,
414 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
415 context_range: Range<BufferOffset>,
416}
417
418#[derive(Clone)]
419struct ResolvedTasks {
420 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
421 position: Anchor,
422}
423#[derive(Copy, Clone, Debug)]
424struct MultiBufferOffset(usize);
425#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
426struct BufferOffset(usize);
427/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
428///
429/// See the [module level documentation](self) for more information.
430pub struct Editor {
431 focus_handle: FocusHandle,
432 /// The text buffer being edited
433 buffer: Model<MultiBuffer>,
434 /// Map of how text in the buffer should be displayed.
435 /// Handles soft wraps, folds, fake inlay text insertions, etc.
436 pub display_map: Model<DisplayMap>,
437 pub selections: SelectionsCollection,
438 pub scroll_manager: ScrollManager,
439 columnar_selection_tail: Option<Anchor>,
440 add_selections_state: Option<AddSelectionsState>,
441 select_next_state: Option<SelectNextState>,
442 select_prev_state: Option<SelectNextState>,
443 selection_history: SelectionHistory,
444 autoclose_regions: Vec<AutocloseRegion>,
445 snippet_stack: InvalidationStack<SnippetState>,
446 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
447 ime_transaction: Option<TransactionId>,
448 active_diagnostics: Option<ActiveDiagnosticGroup>,
449 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
450 project: Option<Model<Project>>,
451 completion_provider: Option<Box<dyn CompletionProvider>>,
452 collaboration_hub: Option<Box<dyn CollaborationHub>>,
453 blink_manager: Model<BlinkManager>,
454 show_cursor_names: bool,
455 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
456 pub show_local_selections: bool,
457 mode: EditorMode,
458 show_breadcrumbs: bool,
459 show_gutter: bool,
460 show_line_numbers: Option<bool>,
461 show_git_diff_gutter: Option<bool>,
462 show_code_actions: Option<bool>,
463 show_wrap_guides: Option<bool>,
464 show_indent_guides: Option<bool>,
465 placeholder_text: Option<Arc<str>>,
466 highlight_order: usize,
467 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
468 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
469 scrollbar_marker_state: ScrollbarMarkerState,
470 active_indent_guides_state: ActiveIndentGuidesState,
471 nav_history: Option<ItemNavHistory>,
472 context_menu: RwLock<Option<ContextMenu>>,
473 mouse_context_menu: Option<MouseContextMenu>,
474 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
475 find_all_references_task_sources: Vec<Anchor>,
476 next_completion_id: CompletionId,
477 completion_documentation_pre_resolve_debounce: DebouncedDelay,
478 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
479 code_actions_task: Option<Task<()>>,
480 document_highlights_task: Option<Task<()>>,
481 pending_rename: Option<RenameState>,
482 searchable: bool,
483 cursor_shape: CursorShape,
484 current_line_highlight: CurrentLineHighlight,
485 collapse_matches: bool,
486 autoindent_mode: Option<AutoindentMode>,
487 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
488 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
489 input_enabled: bool,
490 use_modal_editing: bool,
491 read_only: bool,
492 leader_peer_id: Option<PeerId>,
493 remote_id: Option<ViewId>,
494 hover_state: HoverState,
495 gutter_hovered: bool,
496 hovered_link_state: Option<HoveredLinkState>,
497 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
498 active_inline_completion: Option<Inlay>,
499 show_inline_completions: bool,
500 inlay_hint_cache: InlayHintCache,
501 expanded_hunks: ExpandedHunks,
502 next_inlay_id: usize,
503 _subscriptions: Vec<Subscription>,
504 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
505 gutter_dimensions: GutterDimensions,
506 pub vim_replace_map: HashMap<Range<usize>, String>,
507 style: Option<EditorStyle>,
508 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
509 use_autoclose: bool,
510 auto_replace_emoji_shortcode: bool,
511 show_git_blame_gutter: bool,
512 show_git_blame_inline: bool,
513 show_git_blame_inline_delay_task: Option<Task<()>>,
514 git_blame_inline_enabled: bool,
515 blame: Option<Model<GitBlame>>,
516 blame_subscription: Option<Subscription>,
517 custom_context_menu: Option<
518 Box<
519 dyn 'static
520 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
521 >,
522 >,
523 last_bounds: Option<Bounds<Pixels>>,
524 expect_bounds_change: Option<Bounds<Pixels>>,
525 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
526 tasks_update_task: Option<Task<()>>,
527}
528
529#[derive(Clone)]
530pub struct EditorSnapshot {
531 pub mode: EditorMode,
532 show_gutter: bool,
533 show_line_numbers: Option<bool>,
534 show_git_diff_gutter: Option<bool>,
535 show_code_actions: Option<bool>,
536 render_git_blame_gutter: bool,
537 pub display_snapshot: DisplaySnapshot,
538 pub placeholder_text: Option<Arc<str>>,
539 is_focused: bool,
540 scroll_anchor: ScrollAnchor,
541 ongoing_scroll: OngoingScroll,
542 current_line_highlight: CurrentLineHighlight,
543 gutter_hovered: bool,
544}
545
546const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
547
548#[derive(Debug, Clone, Copy)]
549pub struct GutterDimensions {
550 pub left_padding: Pixels,
551 pub right_padding: Pixels,
552 pub width: Pixels,
553 pub margin: Pixels,
554 pub git_blame_entries_width: Option<Pixels>,
555}
556
557impl Default for GutterDimensions {
558 fn default() -> Self {
559 Self {
560 left_padding: Pixels::ZERO,
561 right_padding: Pixels::ZERO,
562 width: Pixels::ZERO,
563 margin: Pixels::ZERO,
564 git_blame_entries_width: None,
565 }
566 }
567}
568
569#[derive(Debug)]
570pub struct RemoteSelection {
571 pub replica_id: ReplicaId,
572 pub selection: Selection<Anchor>,
573 pub cursor_shape: CursorShape,
574 pub peer_id: PeerId,
575 pub line_mode: bool,
576 pub participant_index: Option<ParticipantIndex>,
577 pub user_name: Option<SharedString>,
578}
579
580#[derive(Clone, Debug)]
581struct SelectionHistoryEntry {
582 selections: Arc<[Selection<Anchor>]>,
583 select_next_state: Option<SelectNextState>,
584 select_prev_state: Option<SelectNextState>,
585 add_selections_state: Option<AddSelectionsState>,
586}
587
588enum SelectionHistoryMode {
589 Normal,
590 Undoing,
591 Redoing,
592}
593
594#[derive(Clone, PartialEq, Eq, Hash)]
595struct HoveredCursor {
596 replica_id: u16,
597 selection_id: usize,
598}
599
600impl Default for SelectionHistoryMode {
601 fn default() -> Self {
602 Self::Normal
603 }
604}
605
606#[derive(Default)]
607struct SelectionHistory {
608 #[allow(clippy::type_complexity)]
609 selections_by_transaction:
610 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
611 mode: SelectionHistoryMode,
612 undo_stack: VecDeque<SelectionHistoryEntry>,
613 redo_stack: VecDeque<SelectionHistoryEntry>,
614}
615
616impl SelectionHistory {
617 fn insert_transaction(
618 &mut self,
619 transaction_id: TransactionId,
620 selections: Arc<[Selection<Anchor>]>,
621 ) {
622 self.selections_by_transaction
623 .insert(transaction_id, (selections, None));
624 }
625
626 #[allow(clippy::type_complexity)]
627 fn transaction(
628 &self,
629 transaction_id: TransactionId,
630 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
631 self.selections_by_transaction.get(&transaction_id)
632 }
633
634 #[allow(clippy::type_complexity)]
635 fn transaction_mut(
636 &mut self,
637 transaction_id: TransactionId,
638 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
639 self.selections_by_transaction.get_mut(&transaction_id)
640 }
641
642 fn push(&mut self, entry: SelectionHistoryEntry) {
643 if !entry.selections.is_empty() {
644 match self.mode {
645 SelectionHistoryMode::Normal => {
646 self.push_undo(entry);
647 self.redo_stack.clear();
648 }
649 SelectionHistoryMode::Undoing => self.push_redo(entry),
650 SelectionHistoryMode::Redoing => self.push_undo(entry),
651 }
652 }
653 }
654
655 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
656 if self
657 .undo_stack
658 .back()
659 .map_or(true, |e| e.selections != entry.selections)
660 {
661 self.undo_stack.push_back(entry);
662 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
663 self.undo_stack.pop_front();
664 }
665 }
666 }
667
668 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
669 if self
670 .redo_stack
671 .back()
672 .map_or(true, |e| e.selections != entry.selections)
673 {
674 self.redo_stack.push_back(entry);
675 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
676 self.redo_stack.pop_front();
677 }
678 }
679 }
680}
681
682struct RowHighlight {
683 index: usize,
684 range: RangeInclusive<Anchor>,
685 color: Option<Hsla>,
686 should_autoscroll: bool,
687}
688
689#[derive(Clone, Debug)]
690struct AddSelectionsState {
691 above: bool,
692 stack: Vec<usize>,
693}
694
695#[derive(Clone)]
696struct SelectNextState {
697 query: AhoCorasick,
698 wordwise: bool,
699 done: bool,
700}
701
702impl std::fmt::Debug for SelectNextState {
703 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
704 f.debug_struct(std::any::type_name::<Self>())
705 .field("wordwise", &self.wordwise)
706 .field("done", &self.done)
707 .finish()
708 }
709}
710
711#[derive(Debug)]
712struct AutocloseRegion {
713 selection_id: usize,
714 range: Range<Anchor>,
715 pair: BracketPair,
716}
717
718#[derive(Debug)]
719struct SnippetState {
720 ranges: Vec<Vec<Range<Anchor>>>,
721 active_index: usize,
722}
723
724#[doc(hidden)]
725pub struct RenameState {
726 pub range: Range<Anchor>,
727 pub old_name: Arc<str>,
728 pub editor: View<Editor>,
729 block_id: BlockId,
730}
731
732struct InvalidationStack<T>(Vec<T>);
733
734struct RegisteredInlineCompletionProvider {
735 provider: Arc<dyn InlineCompletionProviderHandle>,
736 _subscription: Subscription,
737}
738
739enum ContextMenu {
740 Completions(CompletionsMenu),
741 CodeActions(CodeActionsMenu),
742}
743
744impl ContextMenu {
745 fn select_first(
746 &mut self,
747 project: Option<&Model<Project>>,
748 cx: &mut ViewContext<Editor>,
749 ) -> bool {
750 if self.visible() {
751 match self {
752 ContextMenu::Completions(menu) => menu.select_first(project, cx),
753 ContextMenu::CodeActions(menu) => menu.select_first(cx),
754 }
755 true
756 } else {
757 false
758 }
759 }
760
761 fn select_prev(
762 &mut self,
763 project: Option<&Model<Project>>,
764 cx: &mut ViewContext<Editor>,
765 ) -> bool {
766 if self.visible() {
767 match self {
768 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
769 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
770 }
771 true
772 } else {
773 false
774 }
775 }
776
777 fn select_next(
778 &mut self,
779 project: Option<&Model<Project>>,
780 cx: &mut ViewContext<Editor>,
781 ) -> bool {
782 if self.visible() {
783 match self {
784 ContextMenu::Completions(menu) => menu.select_next(project, cx),
785 ContextMenu::CodeActions(menu) => menu.select_next(cx),
786 }
787 true
788 } else {
789 false
790 }
791 }
792
793 fn select_last(
794 &mut self,
795 project: Option<&Model<Project>>,
796 cx: &mut ViewContext<Editor>,
797 ) -> bool {
798 if self.visible() {
799 match self {
800 ContextMenu::Completions(menu) => menu.select_last(project, cx),
801 ContextMenu::CodeActions(menu) => menu.select_last(cx),
802 }
803 true
804 } else {
805 false
806 }
807 }
808
809 fn visible(&self) -> bool {
810 match self {
811 ContextMenu::Completions(menu) => menu.visible(),
812 ContextMenu::CodeActions(menu) => menu.visible(),
813 }
814 }
815
816 fn render(
817 &self,
818 cursor_position: DisplayPoint,
819 style: &EditorStyle,
820 max_height: Pixels,
821 workspace: Option<WeakView<Workspace>>,
822 cx: &mut ViewContext<Editor>,
823 ) -> (ContextMenuOrigin, AnyElement) {
824 match self {
825 ContextMenu::Completions(menu) => (
826 ContextMenuOrigin::EditorPoint(cursor_position),
827 menu.render(style, max_height, workspace, cx),
828 ),
829 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
830 }
831 }
832}
833
834enum ContextMenuOrigin {
835 EditorPoint(DisplayPoint),
836 GutterIndicator(DisplayRow),
837}
838
839#[derive(Clone)]
840struct CompletionsMenu {
841 id: CompletionId,
842 initial_position: Anchor,
843 buffer: Model<Buffer>,
844 completions: Arc<RwLock<Box<[Completion]>>>,
845 match_candidates: Arc<[StringMatchCandidate]>,
846 matches: Arc<[StringMatch]>,
847 selected_item: usize,
848 scroll_handle: UniformListScrollHandle,
849 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
850}
851
852impl CompletionsMenu {
853 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
854 self.selected_item = 0;
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 select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
861 if self.selected_item > 0 {
862 self.selected_item -= 1;
863 } else {
864 self.selected_item = self.matches.len() - 1;
865 }
866 self.scroll_handle.scroll_to_item(self.selected_item);
867 self.attempt_resolve_selected_completion_documentation(project, cx);
868 cx.notify();
869 }
870
871 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
872 if self.selected_item + 1 < self.matches.len() {
873 self.selected_item += 1;
874 } else {
875 self.selected_item = 0;
876 }
877 self.scroll_handle.scroll_to_item(self.selected_item);
878 self.attempt_resolve_selected_completion_documentation(project, cx);
879 cx.notify();
880 }
881
882 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
883 self.selected_item = self.matches.len() - 1;
884 self.scroll_handle.scroll_to_item(self.selected_item);
885 self.attempt_resolve_selected_completion_documentation(project, cx);
886 cx.notify();
887 }
888
889 fn pre_resolve_completion_documentation(
890 buffer: Model<Buffer>,
891 completions: Arc<RwLock<Box<[Completion]>>>,
892 matches: Arc<[StringMatch]>,
893 editor: &Editor,
894 cx: &mut ViewContext<Editor>,
895 ) -> Task<()> {
896 let settings = EditorSettings::get_global(cx);
897 if !settings.show_completion_documentation {
898 return Task::ready(());
899 }
900
901 let Some(provider) = editor.completion_provider.as_ref() else {
902 return Task::ready(());
903 };
904
905 let resolve_task = provider.resolve_completions(
906 buffer,
907 matches.iter().map(|m| m.candidate_id).collect(),
908 completions.clone(),
909 cx,
910 );
911
912 return cx.spawn(move |this, mut cx| async move {
913 if let Some(true) = resolve_task.await.log_err() {
914 this.update(&mut cx, |_, cx| cx.notify()).ok();
915 }
916 });
917 }
918
919 fn attempt_resolve_selected_completion_documentation(
920 &mut self,
921 project: Option<&Model<Project>>,
922 cx: &mut ViewContext<Editor>,
923 ) {
924 let settings = EditorSettings::get_global(cx);
925 if !settings.show_completion_documentation {
926 return;
927 }
928
929 let completion_index = self.matches[self.selected_item].candidate_id;
930 let Some(project) = project else {
931 return;
932 };
933
934 let resolve_task = project.update(cx, |project, cx| {
935 project.resolve_completions(
936 self.buffer.clone(),
937 vec![completion_index],
938 self.completions.clone(),
939 cx,
940 )
941 });
942
943 let delay_ms =
944 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
945 let delay = Duration::from_millis(delay_ms);
946
947 self.selected_completion_documentation_resolve_debounce
948 .lock()
949 .fire_new(delay, cx, |_, cx| {
950 cx.spawn(move |this, mut cx| async move {
951 if let Some(true) = resolve_task.await.log_err() {
952 this.update(&mut cx, |_, cx| cx.notify()).ok();
953 }
954 })
955 });
956 }
957
958 fn visible(&self) -> bool {
959 !self.matches.is_empty()
960 }
961
962 fn render(
963 &self,
964 style: &EditorStyle,
965 max_height: Pixels,
966 workspace: Option<WeakView<Workspace>>,
967 cx: &mut ViewContext<Editor>,
968 ) -> AnyElement {
969 let settings = EditorSettings::get_global(cx);
970 let show_completion_documentation = settings.show_completion_documentation;
971
972 let widest_completion_ix = self
973 .matches
974 .iter()
975 .enumerate()
976 .max_by_key(|(_, mat)| {
977 let completions = self.completions.read();
978 let completion = &completions[mat.candidate_id];
979 let documentation = &completion.documentation;
980
981 let mut len = completion.label.text.chars().count();
982 if let Some(Documentation::SingleLine(text)) = documentation {
983 if show_completion_documentation {
984 len += text.chars().count();
985 }
986 }
987
988 len
989 })
990 .map(|(ix, _)| ix);
991
992 let completions = self.completions.clone();
993 let matches = self.matches.clone();
994 let selected_item = self.selected_item;
995 let style = style.clone();
996
997 let multiline_docs = if show_completion_documentation {
998 let mat = &self.matches[selected_item];
999 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1000 Some(Documentation::MultiLinePlainText(text)) => {
1001 Some(div().child(SharedString::from(text.clone())))
1002 }
1003 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1004 Some(div().child(render_parsed_markdown(
1005 "completions_markdown",
1006 parsed,
1007 &style,
1008 workspace,
1009 cx,
1010 )))
1011 }
1012 _ => None,
1013 };
1014 multiline_docs.map(|div| {
1015 div.id("multiline_docs")
1016 .max_h(max_height)
1017 .flex_1()
1018 .px_1p5()
1019 .py_1()
1020 .min_w(px(260.))
1021 .max_w(px(640.))
1022 .w(px(500.))
1023 .overflow_y_scroll()
1024 .occlude()
1025 })
1026 } else {
1027 None
1028 };
1029
1030 let list = uniform_list(
1031 cx.view().clone(),
1032 "completions",
1033 matches.len(),
1034 move |_editor, range, cx| {
1035 let start_ix = range.start;
1036 let completions_guard = completions.read();
1037
1038 matches[range]
1039 .iter()
1040 .enumerate()
1041 .map(|(ix, mat)| {
1042 let item_ix = start_ix + ix;
1043 let candidate_id = mat.candidate_id;
1044 let completion = &completions_guard[candidate_id];
1045
1046 let documentation = if show_completion_documentation {
1047 &completion.documentation
1048 } else {
1049 &None
1050 };
1051
1052 let highlights = gpui::combine_highlights(
1053 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1054 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1055 |(range, mut highlight)| {
1056 // Ignore font weight for syntax highlighting, as we'll use it
1057 // for fuzzy matches.
1058 highlight.font_weight = None;
1059
1060 if completion.lsp_completion.deprecated.unwrap_or(false) {
1061 highlight.strikethrough = Some(StrikethroughStyle {
1062 thickness: 1.0.into(),
1063 ..Default::default()
1064 });
1065 highlight.color = Some(cx.theme().colors().text_muted);
1066 }
1067
1068 (range, highlight)
1069 },
1070 ),
1071 );
1072 let completion_label = StyledText::new(completion.label.text.clone())
1073 .with_highlights(&style.text, highlights);
1074 let documentation_label =
1075 if let Some(Documentation::SingleLine(text)) = documentation {
1076 if text.trim().is_empty() {
1077 None
1078 } else {
1079 Some(
1080 h_flex().ml_4().child(
1081 Label::new(text.clone())
1082 .size(LabelSize::Small)
1083 .color(Color::Muted),
1084 ),
1085 )
1086 }
1087 } else {
1088 None
1089 };
1090
1091 div().min_w(px(220.)).max_w(px(540.)).child(
1092 ListItem::new(mat.candidate_id)
1093 .inset(true)
1094 .selected(item_ix == selected_item)
1095 .on_click(cx.listener(move |editor, _event, cx| {
1096 cx.stop_propagation();
1097 if let Some(task) = editor.confirm_completion(
1098 &ConfirmCompletion {
1099 item_ix: Some(item_ix),
1100 },
1101 cx,
1102 ) {
1103 task.detach_and_log_err(cx)
1104 }
1105 }))
1106 .child(h_flex().overflow_hidden().child(completion_label))
1107 .end_slot::<Div>(documentation_label),
1108 )
1109 })
1110 .collect()
1111 },
1112 )
1113 .occlude()
1114 .max_h(max_height)
1115 .track_scroll(self.scroll_handle.clone())
1116 .with_width_from_item(widest_completion_ix);
1117
1118 Popover::new()
1119 .child(list)
1120 .when_some(multiline_docs, |popover, multiline_docs| {
1121 popover.aside(multiline_docs)
1122 })
1123 .into_any_element()
1124 }
1125
1126 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1127 let mut matches = if let Some(query) = query {
1128 fuzzy::match_strings(
1129 &self.match_candidates,
1130 query,
1131 query.chars().any(|c| c.is_uppercase()),
1132 100,
1133 &Default::default(),
1134 executor,
1135 )
1136 .await
1137 } else {
1138 self.match_candidates
1139 .iter()
1140 .enumerate()
1141 .map(|(candidate_id, candidate)| StringMatch {
1142 candidate_id,
1143 score: Default::default(),
1144 positions: Default::default(),
1145 string: candidate.string.clone(),
1146 })
1147 .collect()
1148 };
1149
1150 // Remove all candidates where the query's start does not match the start of any word in the candidate
1151 if let Some(query) = query {
1152 if let Some(query_start) = query.chars().next() {
1153 matches.retain(|string_match| {
1154 split_words(&string_match.string).any(|word| {
1155 // Check that the first codepoint of the word as lowercase matches the first
1156 // codepoint of the query as lowercase
1157 word.chars()
1158 .flat_map(|codepoint| codepoint.to_lowercase())
1159 .zip(query_start.to_lowercase())
1160 .all(|(word_cp, query_cp)| word_cp == query_cp)
1161 })
1162 });
1163 }
1164 }
1165
1166 let completions = self.completions.read();
1167 matches.sort_unstable_by_key(|mat| {
1168 // We do want to strike a balance here between what the language server tells us
1169 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1170 // `Creat` and there is a local variable called `CreateComponent`).
1171 // So what we do is: we bucket all matches into two buckets
1172 // - Strong matches
1173 // - Weak matches
1174 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1175 // and the Weak matches are the rest.
1176 //
1177 // For the strong matches, we sort by the language-servers score first and for the weak
1178 // matches, we prefer our fuzzy finder first.
1179 //
1180 // The thinking behind that: it's useless to take the sort_text the language-server gives
1181 // us into account when it's obviously a bad match.
1182
1183 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1184 enum MatchScore<'a> {
1185 Strong {
1186 sort_text: Option<&'a str>,
1187 score: Reverse<OrderedFloat<f64>>,
1188 sort_key: (usize, &'a str),
1189 },
1190 Weak {
1191 score: Reverse<OrderedFloat<f64>>,
1192 sort_text: Option<&'a str>,
1193 sort_key: (usize, &'a str),
1194 },
1195 }
1196
1197 let completion = &completions[mat.candidate_id];
1198 let sort_key = completion.sort_key();
1199 let sort_text = completion.lsp_completion.sort_text.as_deref();
1200 let score = Reverse(OrderedFloat(mat.score));
1201
1202 if mat.score >= 0.2 {
1203 MatchScore::Strong {
1204 sort_text,
1205 score,
1206 sort_key,
1207 }
1208 } else {
1209 MatchScore::Weak {
1210 score,
1211 sort_text,
1212 sort_key,
1213 }
1214 }
1215 });
1216
1217 for mat in &mut matches {
1218 let completion = &completions[mat.candidate_id];
1219 mat.string.clone_from(&completion.label.text);
1220 for position in &mut mat.positions {
1221 *position += completion.label.filter_range.start;
1222 }
1223 }
1224 drop(completions);
1225
1226 self.matches = matches.into();
1227 self.selected_item = 0;
1228 }
1229}
1230
1231#[derive(Clone)]
1232struct CodeActionContents {
1233 tasks: Option<Arc<ResolvedTasks>>,
1234 actions: Option<Arc<[CodeAction]>>,
1235}
1236
1237impl CodeActionContents {
1238 fn len(&self) -> usize {
1239 match (&self.tasks, &self.actions) {
1240 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1241 (Some(tasks), None) => tasks.templates.len(),
1242 (None, Some(actions)) => actions.len(),
1243 (None, None) => 0,
1244 }
1245 }
1246
1247 fn is_empty(&self) -> bool {
1248 match (&self.tasks, &self.actions) {
1249 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1250 (Some(tasks), None) => tasks.templates.is_empty(),
1251 (None, Some(actions)) => actions.is_empty(),
1252 (None, None) => true,
1253 }
1254 }
1255
1256 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1257 self.tasks
1258 .iter()
1259 .flat_map(|tasks| {
1260 tasks
1261 .templates
1262 .iter()
1263 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1264 })
1265 .chain(self.actions.iter().flat_map(|actions| {
1266 actions
1267 .iter()
1268 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1269 }))
1270 }
1271 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1272 match (&self.tasks, &self.actions) {
1273 (Some(tasks), Some(actions)) => {
1274 if index < tasks.templates.len() {
1275 tasks
1276 .templates
1277 .get(index)
1278 .cloned()
1279 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1280 } else {
1281 actions
1282 .get(index - tasks.templates.len())
1283 .cloned()
1284 .map(CodeActionsItem::CodeAction)
1285 }
1286 }
1287 (Some(tasks), None) => tasks
1288 .templates
1289 .get(index)
1290 .cloned()
1291 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1292 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1293 (None, None) => None,
1294 }
1295 }
1296}
1297
1298#[allow(clippy::large_enum_variant)]
1299#[derive(Clone)]
1300enum CodeActionsItem {
1301 Task(TaskSourceKind, ResolvedTask),
1302 CodeAction(CodeAction),
1303}
1304
1305impl CodeActionsItem {
1306 fn as_task(&self) -> Option<&ResolvedTask> {
1307 let Self::Task(_, task) = self else {
1308 return None;
1309 };
1310 Some(task)
1311 }
1312 fn as_code_action(&self) -> Option<&CodeAction> {
1313 let Self::CodeAction(action) = self else {
1314 return None;
1315 };
1316 Some(action)
1317 }
1318 fn label(&self) -> String {
1319 match self {
1320 Self::CodeAction(action) => action.lsp_action.title.clone(),
1321 Self::Task(_, task) => task.resolved_label.clone(),
1322 }
1323 }
1324}
1325
1326struct CodeActionsMenu {
1327 actions: CodeActionContents,
1328 buffer: Model<Buffer>,
1329 selected_item: usize,
1330 scroll_handle: UniformListScrollHandle,
1331 deployed_from_indicator: Option<DisplayRow>,
1332}
1333
1334impl CodeActionsMenu {
1335 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1336 self.selected_item = 0;
1337 self.scroll_handle.scroll_to_item(self.selected_item);
1338 cx.notify()
1339 }
1340
1341 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1342 if self.selected_item > 0 {
1343 self.selected_item -= 1;
1344 } else {
1345 self.selected_item = self.actions.len() - 1;
1346 }
1347 self.scroll_handle.scroll_to_item(self.selected_item);
1348 cx.notify();
1349 }
1350
1351 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1352 if self.selected_item + 1 < self.actions.len() {
1353 self.selected_item += 1;
1354 } else {
1355 self.selected_item = 0;
1356 }
1357 self.scroll_handle.scroll_to_item(self.selected_item);
1358 cx.notify();
1359 }
1360
1361 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1362 self.selected_item = self.actions.len() - 1;
1363 self.scroll_handle.scroll_to_item(self.selected_item);
1364 cx.notify()
1365 }
1366
1367 fn visible(&self) -> bool {
1368 !self.actions.is_empty()
1369 }
1370
1371 fn render(
1372 &self,
1373 cursor_position: DisplayPoint,
1374 _style: &EditorStyle,
1375 max_height: Pixels,
1376 cx: &mut ViewContext<Editor>,
1377 ) -> (ContextMenuOrigin, AnyElement) {
1378 let actions = self.actions.clone();
1379 let selected_item = self.selected_item;
1380 let element = uniform_list(
1381 cx.view().clone(),
1382 "code_actions_menu",
1383 self.actions.len(),
1384 move |_this, range, cx| {
1385 actions
1386 .iter()
1387 .skip(range.start)
1388 .take(range.end - range.start)
1389 .enumerate()
1390 .map(|(ix, action)| {
1391 let item_ix = range.start + ix;
1392 let selected = selected_item == item_ix;
1393 let colors = cx.theme().colors();
1394 div()
1395 .px_2()
1396 .text_color(colors.text)
1397 .when(selected, |style| {
1398 style
1399 .bg(colors.element_active)
1400 .text_color(colors.text_accent)
1401 })
1402 .hover(|style| {
1403 style
1404 .bg(colors.element_hover)
1405 .text_color(colors.text_accent)
1406 })
1407 .whitespace_nowrap()
1408 .when_some(action.as_code_action(), |this, action| {
1409 this.on_mouse_down(
1410 MouseButton::Left,
1411 cx.listener(move |editor, _, cx| {
1412 cx.stop_propagation();
1413 if let Some(task) = editor.confirm_code_action(
1414 &ConfirmCodeAction {
1415 item_ix: Some(item_ix),
1416 },
1417 cx,
1418 ) {
1419 task.detach_and_log_err(cx)
1420 }
1421 }),
1422 )
1423 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1424 .child(SharedString::from(action.lsp_action.title.clone()))
1425 })
1426 .when_some(action.as_task(), |this, task| {
1427 this.on_mouse_down(
1428 MouseButton::Left,
1429 cx.listener(move |editor, _, cx| {
1430 cx.stop_propagation();
1431 if let Some(task) = editor.confirm_code_action(
1432 &ConfirmCodeAction {
1433 item_ix: Some(item_ix),
1434 },
1435 cx,
1436 ) {
1437 task.detach_and_log_err(cx)
1438 }
1439 }),
1440 )
1441 .child(SharedString::from(task.resolved_label.clone()))
1442 })
1443 })
1444 .collect()
1445 },
1446 )
1447 .elevation_1(cx)
1448 .px_2()
1449 .py_1()
1450 .max_h(max_height)
1451 .occlude()
1452 .track_scroll(self.scroll_handle.clone())
1453 .with_width_from_item(
1454 self.actions
1455 .iter()
1456 .enumerate()
1457 .max_by_key(|(_, action)| match action {
1458 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1459 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1460 })
1461 .map(|(ix, _)| ix),
1462 )
1463 .into_any_element();
1464
1465 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1466 ContextMenuOrigin::GutterIndicator(row)
1467 } else {
1468 ContextMenuOrigin::EditorPoint(cursor_position)
1469 };
1470
1471 (cursor_position, element)
1472 }
1473}
1474
1475#[derive(Debug)]
1476struct ActiveDiagnosticGroup {
1477 primary_range: Range<Anchor>,
1478 primary_message: String,
1479 group_id: usize,
1480 blocks: HashMap<BlockId, Diagnostic>,
1481 is_valid: bool,
1482}
1483
1484#[derive(Serialize, Deserialize)]
1485pub struct ClipboardSelection {
1486 pub len: usize,
1487 pub is_entire_line: bool,
1488 pub first_line_indent: u32,
1489}
1490
1491#[derive(Debug)]
1492pub(crate) struct NavigationData {
1493 cursor_anchor: Anchor,
1494 cursor_position: Point,
1495 scroll_anchor: ScrollAnchor,
1496 scroll_top_row: u32,
1497}
1498
1499enum GotoDefinitionKind {
1500 Symbol,
1501 Type,
1502 Implementation,
1503}
1504
1505#[derive(Debug, Clone)]
1506enum InlayHintRefreshReason {
1507 Toggle(bool),
1508 SettingsChange(InlayHintSettings),
1509 NewLinesShown,
1510 BufferEdited(HashSet<Arc<Language>>),
1511 RefreshRequested,
1512 ExcerptsRemoved(Vec<ExcerptId>),
1513}
1514
1515impl InlayHintRefreshReason {
1516 fn description(&self) -> &'static str {
1517 match self {
1518 Self::Toggle(_) => "toggle",
1519 Self::SettingsChange(_) => "settings change",
1520 Self::NewLinesShown => "new lines shown",
1521 Self::BufferEdited(_) => "buffer edited",
1522 Self::RefreshRequested => "refresh requested",
1523 Self::ExcerptsRemoved(_) => "excerpts removed",
1524 }
1525 }
1526}
1527
1528impl Editor {
1529 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1530 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1531 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1532 Self::new(EditorMode::SingleLine, buffer, None, false, cx)
1533 }
1534
1535 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1536 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1537 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1538 Self::new(EditorMode::Full, buffer, None, false, cx)
1539 }
1540
1541 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1542 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1543 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1544 Self::new(
1545 EditorMode::AutoHeight { max_lines },
1546 buffer,
1547 None,
1548 false,
1549 cx,
1550 )
1551 }
1552
1553 pub fn for_buffer(
1554 buffer: Model<Buffer>,
1555 project: Option<Model<Project>>,
1556 cx: &mut ViewContext<Self>,
1557 ) -> Self {
1558 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1559 Self::new(EditorMode::Full, buffer, project, false, cx)
1560 }
1561
1562 pub fn for_multibuffer(
1563 buffer: Model<MultiBuffer>,
1564 project: Option<Model<Project>>,
1565 show_excerpt_controls: bool,
1566 cx: &mut ViewContext<Self>,
1567 ) -> Self {
1568 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1569 }
1570
1571 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1572 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1573 let mut clone = Self::new(
1574 self.mode,
1575 self.buffer.clone(),
1576 self.project.clone(),
1577 show_excerpt_controls,
1578 cx,
1579 );
1580 self.display_map.update(cx, |display_map, cx| {
1581 let snapshot = display_map.snapshot(cx);
1582 clone.display_map.update(cx, |display_map, cx| {
1583 display_map.set_state(&snapshot, cx);
1584 });
1585 });
1586 clone.selections.clone_state(&self.selections);
1587 clone.scroll_manager.clone_state(&self.scroll_manager);
1588 clone.searchable = self.searchable;
1589 clone
1590 }
1591
1592 fn new(
1593 mode: EditorMode,
1594 buffer: Model<MultiBuffer>,
1595 project: Option<Model<Project>>,
1596 show_excerpt_controls: bool,
1597 cx: &mut ViewContext<Self>,
1598 ) -> Self {
1599 let style = cx.text_style();
1600 let font_size = style.font_size.to_pixels(cx.rem_size());
1601 let editor = cx.view().downgrade();
1602 let fold_placeholder = FoldPlaceholder {
1603 constrain_width: true,
1604 render: Arc::new(move |fold_id, fold_range, cx| {
1605 let editor = editor.clone();
1606 div()
1607 .id(fold_id)
1608 .bg(cx.theme().colors().ghost_element_background)
1609 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1610 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1611 .rounded_sm()
1612 .size_full()
1613 .cursor_pointer()
1614 .child("⋯")
1615 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1616 .on_click(move |_, cx| {
1617 editor
1618 .update(cx, |editor, cx| {
1619 editor.unfold_ranges(
1620 [fold_range.start..fold_range.end],
1621 true,
1622 false,
1623 cx,
1624 );
1625 cx.stop_propagation();
1626 })
1627 .ok();
1628 })
1629 .into_any()
1630 }),
1631 merge_adjacent: true,
1632 };
1633 let display_map = cx.new_model(|cx| {
1634 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1635
1636 DisplayMap::new(
1637 buffer.clone(),
1638 style.font(),
1639 font_size,
1640 None,
1641 show_excerpt_controls,
1642 file_header_size,
1643 1,
1644 1,
1645 fold_placeholder,
1646 cx,
1647 )
1648 });
1649
1650 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1651
1652 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1653
1654 let soft_wrap_mode_override =
1655 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1656
1657 let mut project_subscriptions = Vec::new();
1658 if mode == EditorMode::Full {
1659 if let Some(project) = project.as_ref() {
1660 if buffer.read(cx).is_singleton() {
1661 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1662 cx.emit(EditorEvent::TitleChanged);
1663 }));
1664 }
1665 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1666 if let project::Event::RefreshInlayHints = event {
1667 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1668 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1669 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1670 let focus_handle = editor.focus_handle(cx);
1671 if focus_handle.is_focused(cx) {
1672 let snapshot = buffer.read(cx).snapshot();
1673 for (range, snippet) in snippet_edits {
1674 let editor_range =
1675 language::range_from_lsp(*range).to_offset(&snapshot);
1676 editor
1677 .insert_snippet(&[editor_range], snippet.clone(), cx)
1678 .ok();
1679 }
1680 }
1681 }
1682 }
1683 }));
1684 let task_inventory = project.read(cx).task_inventory().clone();
1685 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1686 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1687 }));
1688 }
1689 }
1690
1691 let inlay_hint_settings = inlay_hint_settings(
1692 selections.newest_anchor().head(),
1693 &buffer.read(cx).snapshot(cx),
1694 cx,
1695 );
1696 let focus_handle = cx.focus_handle();
1697 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1698 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1699
1700 let mut this = Self {
1701 focus_handle,
1702 buffer: buffer.clone(),
1703 display_map: display_map.clone(),
1704 selections,
1705 scroll_manager: ScrollManager::new(cx),
1706 columnar_selection_tail: None,
1707 add_selections_state: None,
1708 select_next_state: None,
1709 select_prev_state: None,
1710 selection_history: Default::default(),
1711 autoclose_regions: Default::default(),
1712 snippet_stack: Default::default(),
1713 select_larger_syntax_node_stack: Vec::new(),
1714 ime_transaction: Default::default(),
1715 active_diagnostics: None,
1716 soft_wrap_mode_override,
1717 completion_provider: project.clone().map(|project| Box::new(project) as _),
1718 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1719 project,
1720 blink_manager: blink_manager.clone(),
1721 show_local_selections: true,
1722 mode,
1723 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1724 show_gutter: mode == EditorMode::Full,
1725 show_line_numbers: None,
1726 show_git_diff_gutter: None,
1727 show_code_actions: None,
1728 show_wrap_guides: None,
1729 show_indent_guides: None,
1730 placeholder_text: None,
1731 highlight_order: 0,
1732 highlighted_rows: HashMap::default(),
1733 background_highlights: Default::default(),
1734 scrollbar_marker_state: ScrollbarMarkerState::default(),
1735 active_indent_guides_state: ActiveIndentGuidesState::default(),
1736 nav_history: None,
1737 context_menu: RwLock::new(None),
1738 mouse_context_menu: None,
1739 completion_tasks: Default::default(),
1740 find_all_references_task_sources: Vec::new(),
1741 next_completion_id: 0,
1742 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1743 next_inlay_id: 0,
1744 available_code_actions: Default::default(),
1745 code_actions_task: Default::default(),
1746 document_highlights_task: Default::default(),
1747 pending_rename: Default::default(),
1748 searchable: true,
1749 cursor_shape: Default::default(),
1750 current_line_highlight: EditorSettings::get_global(cx).current_line_highlight,
1751 autoindent_mode: Some(AutoindentMode::EachLine),
1752 collapse_matches: false,
1753 workspace: None,
1754 keymap_context_layers: Default::default(),
1755 input_enabled: true,
1756 use_modal_editing: mode == EditorMode::Full,
1757 read_only: false,
1758 use_autoclose: true,
1759 auto_replace_emoji_shortcode: false,
1760 leader_peer_id: None,
1761 remote_id: None,
1762 hover_state: Default::default(),
1763 hovered_link_state: Default::default(),
1764 inline_completion_provider: None,
1765 active_inline_completion: None,
1766 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1767 expanded_hunks: ExpandedHunks::default(),
1768 gutter_hovered: false,
1769 pixel_position_of_newest_cursor: None,
1770 last_bounds: None,
1771 expect_bounds_change: None,
1772 gutter_dimensions: GutterDimensions::default(),
1773 style: None,
1774 show_cursor_names: false,
1775 hovered_cursors: Default::default(),
1776 editor_actions: Default::default(),
1777 vim_replace_map: Default::default(),
1778 show_inline_completions: mode == EditorMode::Full,
1779 custom_context_menu: None,
1780 show_git_blame_gutter: false,
1781 show_git_blame_inline: false,
1782 show_git_blame_inline_delay_task: None,
1783 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1784 blame: None,
1785 blame_subscription: None,
1786 tasks: Default::default(),
1787 _subscriptions: vec![
1788 cx.observe(&buffer, Self::on_buffer_changed),
1789 cx.subscribe(&buffer, Self::on_buffer_event),
1790 cx.observe(&display_map, Self::on_display_map_changed),
1791 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1792 cx.observe_global::<SettingsStore>(Self::settings_changed),
1793 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1794 cx.observe_window_activation(|editor, cx| {
1795 let active = cx.is_window_active();
1796 editor.blink_manager.update(cx, |blink_manager, cx| {
1797 if active {
1798 blink_manager.enable(cx);
1799 } else {
1800 blink_manager.show_cursor(cx);
1801 blink_manager.disable(cx);
1802 }
1803 });
1804 }),
1805 ],
1806 tasks_update_task: None,
1807 };
1808 this.tasks_update_task = Some(this.refresh_runnables(cx));
1809 this._subscriptions.extend(project_subscriptions);
1810
1811 this.end_selection(cx);
1812 this.scroll_manager.show_scrollbar(cx);
1813
1814 if mode == EditorMode::Full {
1815 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1816 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1817
1818 if this.git_blame_inline_enabled {
1819 this.git_blame_inline_enabled = true;
1820 this.start_git_blame_inline(false, cx);
1821 }
1822 }
1823
1824 this.report_editor_event("open", None, cx);
1825 this
1826 }
1827
1828 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1829 self.mouse_context_menu
1830 .as_ref()
1831 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1832 }
1833
1834 fn key_context(&self, cx: &AppContext) -> KeyContext {
1835 let mut key_context = KeyContext::new_with_defaults();
1836 key_context.add("Editor");
1837 let mode = match self.mode {
1838 EditorMode::SingleLine => "single_line",
1839 EditorMode::AutoHeight { .. } => "auto_height",
1840 EditorMode::Full => "full",
1841 };
1842 key_context.set("mode", mode);
1843 if self.pending_rename.is_some() {
1844 key_context.add("renaming");
1845 }
1846 if self.context_menu_visible() {
1847 match self.context_menu.read().as_ref() {
1848 Some(ContextMenu::Completions(_)) => {
1849 key_context.add("menu");
1850 key_context.add("showing_completions")
1851 }
1852 Some(ContextMenu::CodeActions(_)) => {
1853 key_context.add("menu");
1854 key_context.add("showing_code_actions")
1855 }
1856 None => {}
1857 }
1858 }
1859
1860 for layer in self.keymap_context_layers.values() {
1861 key_context.extend(layer);
1862 }
1863
1864 if let Some(extension) = self
1865 .buffer
1866 .read(cx)
1867 .as_singleton()
1868 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1869 {
1870 key_context.set("extension", extension.to_string());
1871 }
1872
1873 if self.has_active_inline_completion(cx) {
1874 key_context.add("copilot_suggestion");
1875 key_context.add("inline_completion");
1876 }
1877
1878 key_context
1879 }
1880
1881 pub fn new_file(
1882 workspace: &mut Workspace,
1883 _: &workspace::NewFile,
1884 cx: &mut ViewContext<Workspace>,
1885 ) {
1886 let project = workspace.project().clone();
1887 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1888
1889 cx.spawn(|workspace, mut cx| async move {
1890 let buffer = create.await?;
1891 workspace.update(&mut cx, |workspace, cx| {
1892 workspace.add_item_to_active_pane(
1893 Box::new(
1894 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1895 ),
1896 None,
1897 cx,
1898 )
1899 })
1900 })
1901 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1902 ErrorCode::RemoteUpgradeRequired => Some(format!(
1903 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1904 e.error_tag("required").unwrap_or("the latest version")
1905 )),
1906 _ => None,
1907 });
1908 }
1909
1910 pub fn new_file_in_direction(
1911 workspace: &mut Workspace,
1912 action: &workspace::NewFileInDirection,
1913 cx: &mut ViewContext<Workspace>,
1914 ) {
1915 let project = workspace.project().clone();
1916 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1917 let direction = action.0;
1918
1919 cx.spawn(|workspace, mut cx| async move {
1920 let buffer = create.await?;
1921 workspace.update(&mut cx, move |workspace, cx| {
1922 workspace.split_item(
1923 direction,
1924 Box::new(
1925 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1926 ),
1927 cx,
1928 )
1929 })?;
1930 anyhow::Ok(())
1931 })
1932 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1933 ErrorCode::RemoteUpgradeRequired => Some(format!(
1934 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1935 e.error_tag("required").unwrap_or("the latest version")
1936 )),
1937 _ => None,
1938 });
1939 }
1940
1941 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1942 self.buffer.read(cx).replica_id()
1943 }
1944
1945 pub fn leader_peer_id(&self) -> Option<PeerId> {
1946 self.leader_peer_id
1947 }
1948
1949 pub fn buffer(&self) -> &Model<MultiBuffer> {
1950 &self.buffer
1951 }
1952
1953 pub fn workspace(&self) -> Option<View<Workspace>> {
1954 self.workspace.as_ref()?.0.upgrade()
1955 }
1956
1957 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1958 self.buffer().read(cx).title(cx)
1959 }
1960
1961 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1962 EditorSnapshot {
1963 mode: self.mode,
1964 show_gutter: self.show_gutter,
1965 show_line_numbers: self.show_line_numbers,
1966 show_git_diff_gutter: self.show_git_diff_gutter,
1967 show_code_actions: self.show_code_actions,
1968 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1969 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1970 scroll_anchor: self.scroll_manager.anchor(),
1971 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1972 placeholder_text: self.placeholder_text.clone(),
1973 is_focused: self.focus_handle.is_focused(cx),
1974 current_line_highlight: self.current_line_highlight,
1975 gutter_hovered: self.gutter_hovered,
1976 }
1977 }
1978
1979 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1980 self.buffer.read(cx).language_at(point, cx)
1981 }
1982
1983 pub fn file_at<T: ToOffset>(
1984 &self,
1985 point: T,
1986 cx: &AppContext,
1987 ) -> Option<Arc<dyn language::File>> {
1988 self.buffer.read(cx).read(cx).file_at(point).cloned()
1989 }
1990
1991 pub fn active_excerpt(
1992 &self,
1993 cx: &AppContext,
1994 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1995 self.buffer
1996 .read(cx)
1997 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1998 }
1999
2000 pub fn mode(&self) -> EditorMode {
2001 self.mode
2002 }
2003
2004 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2005 self.collaboration_hub.as_deref()
2006 }
2007
2008 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2009 self.collaboration_hub = Some(hub);
2010 }
2011
2012 pub fn set_custom_context_menu(
2013 &mut self,
2014 f: impl 'static
2015 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2016 ) {
2017 self.custom_context_menu = Some(Box::new(f))
2018 }
2019
2020 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2021 self.completion_provider = Some(provider);
2022 }
2023
2024 pub fn set_inline_completion_provider<T>(
2025 &mut self,
2026 provider: Option<Model<T>>,
2027 cx: &mut ViewContext<Self>,
2028 ) where
2029 T: InlineCompletionProvider,
2030 {
2031 self.inline_completion_provider =
2032 provider.map(|provider| RegisteredInlineCompletionProvider {
2033 _subscription: cx.observe(&provider, |this, _, cx| {
2034 if this.focus_handle.is_focused(cx) {
2035 this.update_visible_inline_completion(cx);
2036 }
2037 }),
2038 provider: Arc::new(provider),
2039 });
2040 self.refresh_inline_completion(false, cx);
2041 }
2042
2043 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
2044 self.placeholder_text.as_deref()
2045 }
2046
2047 pub fn set_placeholder_text(
2048 &mut self,
2049 placeholder_text: impl Into<Arc<str>>,
2050 cx: &mut ViewContext<Self>,
2051 ) {
2052 let placeholder_text = Some(placeholder_text.into());
2053 if self.placeholder_text != placeholder_text {
2054 self.placeholder_text = placeholder_text;
2055 cx.notify();
2056 }
2057 }
2058
2059 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2060 self.cursor_shape = cursor_shape;
2061 cx.notify();
2062 }
2063
2064 pub fn set_current_line_highlight(&mut self, current_line_highlight: CurrentLineHighlight) {
2065 self.current_line_highlight = current_line_highlight;
2066 }
2067
2068 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2069 self.collapse_matches = collapse_matches;
2070 }
2071
2072 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2073 if self.collapse_matches {
2074 return range.start..range.start;
2075 }
2076 range.clone()
2077 }
2078
2079 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2080 if self.display_map.read(cx).clip_at_line_ends != clip {
2081 self.display_map
2082 .update(cx, |map, _| map.clip_at_line_ends = clip);
2083 }
2084 }
2085
2086 pub fn set_keymap_context_layer<Tag: 'static>(
2087 &mut self,
2088 context: KeyContext,
2089 cx: &mut ViewContext<Self>,
2090 ) {
2091 self.keymap_context_layers
2092 .insert(TypeId::of::<Tag>(), context);
2093 cx.notify();
2094 }
2095
2096 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2097 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2098 cx.notify();
2099 }
2100
2101 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2102 self.input_enabled = input_enabled;
2103 }
2104
2105 pub fn set_autoindent(&mut self, autoindent: bool) {
2106 if autoindent {
2107 self.autoindent_mode = Some(AutoindentMode::EachLine);
2108 } else {
2109 self.autoindent_mode = None;
2110 }
2111 }
2112
2113 pub fn read_only(&self, cx: &AppContext) -> bool {
2114 self.read_only || self.buffer.read(cx).read_only()
2115 }
2116
2117 pub fn set_read_only(&mut self, read_only: bool) {
2118 self.read_only = read_only;
2119 }
2120
2121 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2122 self.use_autoclose = autoclose;
2123 }
2124
2125 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2126 self.auto_replace_emoji_shortcode = auto_replace;
2127 }
2128
2129 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2130 self.show_inline_completions = show_inline_completions;
2131 }
2132
2133 pub fn set_use_modal_editing(&mut self, to: bool) {
2134 self.use_modal_editing = to;
2135 }
2136
2137 pub fn use_modal_editing(&self) -> bool {
2138 self.use_modal_editing
2139 }
2140
2141 fn selections_did_change(
2142 &mut self,
2143 local: bool,
2144 old_cursor_position: &Anchor,
2145 show_completions: bool,
2146 cx: &mut ViewContext<Self>,
2147 ) {
2148 // Copy selections to primary selection buffer
2149 #[cfg(target_os = "linux")]
2150 if local {
2151 let selections = self.selections.all::<usize>(cx);
2152 let buffer_handle = self.buffer.read(cx).read(cx);
2153
2154 let mut text = String::new();
2155 for (index, selection) in selections.iter().enumerate() {
2156 let text_for_selection = buffer_handle
2157 .text_for_range(selection.start..selection.end)
2158 .collect::<String>();
2159
2160 text.push_str(&text_for_selection);
2161 if index != selections.len() - 1 {
2162 text.push('\n');
2163 }
2164 }
2165
2166 if !text.is_empty() {
2167 cx.write_to_primary(ClipboardItem::new(text));
2168 }
2169 }
2170
2171 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2172 self.buffer.update(cx, |buffer, cx| {
2173 buffer.set_active_selections(
2174 &self.selections.disjoint_anchors(),
2175 self.selections.line_mode,
2176 self.cursor_shape,
2177 cx,
2178 )
2179 });
2180 }
2181
2182 let display_map = self
2183 .display_map
2184 .update(cx, |display_map, cx| display_map.snapshot(cx));
2185 let buffer = &display_map.buffer_snapshot;
2186 self.add_selections_state = None;
2187 self.select_next_state = None;
2188 self.select_prev_state = None;
2189 self.select_larger_syntax_node_stack.clear();
2190 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2191 self.snippet_stack
2192 .invalidate(&self.selections.disjoint_anchors(), buffer);
2193 self.take_rename(false, cx);
2194
2195 let new_cursor_position = self.selections.newest_anchor().head();
2196
2197 self.push_to_nav_history(
2198 *old_cursor_position,
2199 Some(new_cursor_position.to_point(buffer)),
2200 cx,
2201 );
2202
2203 if local {
2204 let new_cursor_position = self.selections.newest_anchor().head();
2205 let mut context_menu = self.context_menu.write();
2206 let completion_menu = match context_menu.as_ref() {
2207 Some(ContextMenu::Completions(menu)) => Some(menu),
2208
2209 _ => {
2210 *context_menu = None;
2211 None
2212 }
2213 };
2214
2215 if let Some(completion_menu) = completion_menu {
2216 let cursor_position = new_cursor_position.to_offset(buffer);
2217 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2218 if kind == Some(CharKind::Word)
2219 && word_range.to_inclusive().contains(&cursor_position)
2220 {
2221 let mut completion_menu = completion_menu.clone();
2222 drop(context_menu);
2223
2224 let query = Self::completion_query(buffer, cursor_position);
2225 cx.spawn(move |this, mut cx| async move {
2226 completion_menu
2227 .filter(query.as_deref(), cx.background_executor().clone())
2228 .await;
2229
2230 this.update(&mut cx, |this, cx| {
2231 let mut context_menu = this.context_menu.write();
2232 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2233 return;
2234 };
2235
2236 if menu.id > completion_menu.id {
2237 return;
2238 }
2239
2240 *context_menu = Some(ContextMenu::Completions(completion_menu));
2241 drop(context_menu);
2242 cx.notify();
2243 })
2244 })
2245 .detach();
2246
2247 if show_completions {
2248 self.show_completions(&ShowCompletions, cx);
2249 }
2250 } else {
2251 drop(context_menu);
2252 self.hide_context_menu(cx);
2253 }
2254 } else {
2255 drop(context_menu);
2256 }
2257
2258 hide_hover(self, cx);
2259
2260 if old_cursor_position.to_display_point(&display_map).row()
2261 != new_cursor_position.to_display_point(&display_map).row()
2262 {
2263 self.available_code_actions.take();
2264 }
2265 self.refresh_code_actions(cx);
2266 self.refresh_document_highlights(cx);
2267 refresh_matching_bracket_highlights(self, cx);
2268 self.discard_inline_completion(false, cx);
2269 if self.git_blame_inline_enabled {
2270 self.start_inline_blame_timer(cx);
2271 }
2272 }
2273
2274 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2275 cx.emit(EditorEvent::SelectionsChanged { local });
2276
2277 if self.selections.disjoint_anchors().len() == 1 {
2278 cx.emit(SearchEvent::ActiveMatchChanged)
2279 }
2280
2281 cx.notify();
2282 }
2283
2284 pub fn change_selections<R>(
2285 &mut self,
2286 autoscroll: Option<Autoscroll>,
2287 cx: &mut ViewContext<Self>,
2288 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2289 ) -> R {
2290 self.change_selections_inner(autoscroll, true, cx, change)
2291 }
2292
2293 pub fn change_selections_inner<R>(
2294 &mut self,
2295 autoscroll: Option<Autoscroll>,
2296 request_completions: bool,
2297 cx: &mut ViewContext<Self>,
2298 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2299 ) -> R {
2300 let old_cursor_position = self.selections.newest_anchor().head();
2301 self.push_to_selection_history();
2302
2303 let (changed, result) = self.selections.change_with(cx, change);
2304
2305 if changed {
2306 if let Some(autoscroll) = autoscroll {
2307 self.request_autoscroll(autoscroll, cx);
2308 }
2309 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2310 }
2311
2312 result
2313 }
2314
2315 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2316 where
2317 I: IntoIterator<Item = (Range<S>, T)>,
2318 S: ToOffset,
2319 T: Into<Arc<str>>,
2320 {
2321 if self.read_only(cx) {
2322 return;
2323 }
2324
2325 self.buffer
2326 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2327 }
2328
2329 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2330 where
2331 I: IntoIterator<Item = (Range<S>, T)>,
2332 S: ToOffset,
2333 T: Into<Arc<str>>,
2334 {
2335 if self.read_only(cx) {
2336 return;
2337 }
2338
2339 self.buffer.update(cx, |buffer, cx| {
2340 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2341 });
2342 }
2343
2344 pub fn edit_with_block_indent<I, S, T>(
2345 &mut self,
2346 edits: I,
2347 original_indent_columns: Vec<u32>,
2348 cx: &mut ViewContext<Self>,
2349 ) where
2350 I: IntoIterator<Item = (Range<S>, T)>,
2351 S: ToOffset,
2352 T: Into<Arc<str>>,
2353 {
2354 if self.read_only(cx) {
2355 return;
2356 }
2357
2358 self.buffer.update(cx, |buffer, cx| {
2359 buffer.edit(
2360 edits,
2361 Some(AutoindentMode::Block {
2362 original_indent_columns,
2363 }),
2364 cx,
2365 )
2366 });
2367 }
2368
2369 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2370 self.hide_context_menu(cx);
2371
2372 match phase {
2373 SelectPhase::Begin {
2374 position,
2375 add,
2376 click_count,
2377 } => self.begin_selection(position, add, click_count, cx),
2378 SelectPhase::BeginColumnar {
2379 position,
2380 goal_column,
2381 reset,
2382 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2383 SelectPhase::Extend {
2384 position,
2385 click_count,
2386 } => self.extend_selection(position, click_count, cx),
2387 SelectPhase::Update {
2388 position,
2389 goal_column,
2390 scroll_delta,
2391 } => self.update_selection(position, goal_column, scroll_delta, cx),
2392 SelectPhase::End => self.end_selection(cx),
2393 }
2394 }
2395
2396 fn extend_selection(
2397 &mut self,
2398 position: DisplayPoint,
2399 click_count: usize,
2400 cx: &mut ViewContext<Self>,
2401 ) {
2402 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2403 let tail = self.selections.newest::<usize>(cx).tail();
2404 self.begin_selection(position, false, click_count, cx);
2405
2406 let position = position.to_offset(&display_map, Bias::Left);
2407 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2408
2409 let mut pending_selection = self
2410 .selections
2411 .pending_anchor()
2412 .expect("extend_selection not called with pending selection");
2413 if position >= tail {
2414 pending_selection.start = tail_anchor;
2415 } else {
2416 pending_selection.end = tail_anchor;
2417 pending_selection.reversed = true;
2418 }
2419
2420 let mut pending_mode = self.selections.pending_mode().unwrap();
2421 match &mut pending_mode {
2422 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2423 _ => {}
2424 }
2425
2426 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2427 s.set_pending(pending_selection, pending_mode)
2428 });
2429 }
2430
2431 fn begin_selection(
2432 &mut self,
2433 position: DisplayPoint,
2434 add: bool,
2435 click_count: usize,
2436 cx: &mut ViewContext<Self>,
2437 ) {
2438 if !self.focus_handle.is_focused(cx) {
2439 cx.focus(&self.focus_handle);
2440 }
2441
2442 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2443 let buffer = &display_map.buffer_snapshot;
2444 let newest_selection = self.selections.newest_anchor().clone();
2445 let position = display_map.clip_point(position, Bias::Left);
2446
2447 let start;
2448 let end;
2449 let mode;
2450 let auto_scroll;
2451 match click_count {
2452 1 => {
2453 start = buffer.anchor_before(position.to_point(&display_map));
2454 end = start;
2455 mode = SelectMode::Character;
2456 auto_scroll = true;
2457 }
2458 2 => {
2459 let range = movement::surrounding_word(&display_map, position);
2460 start = buffer.anchor_before(range.start.to_point(&display_map));
2461 end = buffer.anchor_before(range.end.to_point(&display_map));
2462 mode = SelectMode::Word(start..end);
2463 auto_scroll = true;
2464 }
2465 3 => {
2466 let position = display_map
2467 .clip_point(position, Bias::Left)
2468 .to_point(&display_map);
2469 let line_start = display_map.prev_line_boundary(position).0;
2470 let next_line_start = buffer.clip_point(
2471 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2472 Bias::Left,
2473 );
2474 start = buffer.anchor_before(line_start);
2475 end = buffer.anchor_before(next_line_start);
2476 mode = SelectMode::Line(start..end);
2477 auto_scroll = true;
2478 }
2479 _ => {
2480 start = buffer.anchor_before(0);
2481 end = buffer.anchor_before(buffer.len());
2482 mode = SelectMode::All;
2483 auto_scroll = false;
2484 }
2485 }
2486
2487 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2488 if !add {
2489 s.clear_disjoint();
2490 } else if click_count > 1 {
2491 s.delete(newest_selection.id)
2492 }
2493
2494 s.set_pending_anchor_range(start..end, mode);
2495 });
2496 }
2497
2498 fn begin_columnar_selection(
2499 &mut self,
2500 position: DisplayPoint,
2501 goal_column: u32,
2502 reset: bool,
2503 cx: &mut ViewContext<Self>,
2504 ) {
2505 if !self.focus_handle.is_focused(cx) {
2506 cx.focus(&self.focus_handle);
2507 }
2508
2509 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2510
2511 if reset {
2512 let pointer_position = display_map
2513 .buffer_snapshot
2514 .anchor_before(position.to_point(&display_map));
2515
2516 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2517 s.clear_disjoint();
2518 s.set_pending_anchor_range(
2519 pointer_position..pointer_position,
2520 SelectMode::Character,
2521 );
2522 });
2523 }
2524
2525 let tail = self.selections.newest::<Point>(cx).tail();
2526 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2527
2528 if !reset {
2529 self.select_columns(
2530 tail.to_display_point(&display_map),
2531 position,
2532 goal_column,
2533 &display_map,
2534 cx,
2535 );
2536 }
2537 }
2538
2539 fn update_selection(
2540 &mut self,
2541 position: DisplayPoint,
2542 goal_column: u32,
2543 scroll_delta: gpui::Point<f32>,
2544 cx: &mut ViewContext<Self>,
2545 ) {
2546 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2547
2548 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2549 let tail = tail.to_display_point(&display_map);
2550 self.select_columns(tail, position, goal_column, &display_map, cx);
2551 } else if let Some(mut pending) = self.selections.pending_anchor() {
2552 let buffer = self.buffer.read(cx).snapshot(cx);
2553 let head;
2554 let tail;
2555 let mode = self.selections.pending_mode().unwrap();
2556 match &mode {
2557 SelectMode::Character => {
2558 head = position.to_point(&display_map);
2559 tail = pending.tail().to_point(&buffer);
2560 }
2561 SelectMode::Word(original_range) => {
2562 let original_display_range = original_range.start.to_display_point(&display_map)
2563 ..original_range.end.to_display_point(&display_map);
2564 let original_buffer_range = original_display_range.start.to_point(&display_map)
2565 ..original_display_range.end.to_point(&display_map);
2566 if movement::is_inside_word(&display_map, position)
2567 || original_display_range.contains(&position)
2568 {
2569 let word_range = movement::surrounding_word(&display_map, position);
2570 if word_range.start < original_display_range.start {
2571 head = word_range.start.to_point(&display_map);
2572 } else {
2573 head = word_range.end.to_point(&display_map);
2574 }
2575 } else {
2576 head = position.to_point(&display_map);
2577 }
2578
2579 if head <= original_buffer_range.start {
2580 tail = original_buffer_range.end;
2581 } else {
2582 tail = original_buffer_range.start;
2583 }
2584 }
2585 SelectMode::Line(original_range) => {
2586 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2587
2588 let position = display_map
2589 .clip_point(position, Bias::Left)
2590 .to_point(&display_map);
2591 let line_start = display_map.prev_line_boundary(position).0;
2592 let next_line_start = buffer.clip_point(
2593 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2594 Bias::Left,
2595 );
2596
2597 if line_start < original_range.start {
2598 head = line_start
2599 } else {
2600 head = next_line_start
2601 }
2602
2603 if head <= original_range.start {
2604 tail = original_range.end;
2605 } else {
2606 tail = original_range.start;
2607 }
2608 }
2609 SelectMode::All => {
2610 return;
2611 }
2612 };
2613
2614 if head < tail {
2615 pending.start = buffer.anchor_before(head);
2616 pending.end = buffer.anchor_before(tail);
2617 pending.reversed = true;
2618 } else {
2619 pending.start = buffer.anchor_before(tail);
2620 pending.end = buffer.anchor_before(head);
2621 pending.reversed = false;
2622 }
2623
2624 self.change_selections(None, cx, |s| {
2625 s.set_pending(pending, mode);
2626 });
2627 } else {
2628 log::error!("update_selection dispatched with no pending selection");
2629 return;
2630 }
2631
2632 self.apply_scroll_delta(scroll_delta, cx);
2633 cx.notify();
2634 }
2635
2636 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2637 self.columnar_selection_tail.take();
2638 if self.selections.pending_anchor().is_some() {
2639 let selections = self.selections.all::<usize>(cx);
2640 self.change_selections(None, cx, |s| {
2641 s.select(selections);
2642 s.clear_pending();
2643 });
2644 }
2645 }
2646
2647 fn select_columns(
2648 &mut self,
2649 tail: DisplayPoint,
2650 head: DisplayPoint,
2651 goal_column: u32,
2652 display_map: &DisplaySnapshot,
2653 cx: &mut ViewContext<Self>,
2654 ) {
2655 let start_row = cmp::min(tail.row(), head.row());
2656 let end_row = cmp::max(tail.row(), head.row());
2657 let start_column = cmp::min(tail.column(), goal_column);
2658 let end_column = cmp::max(tail.column(), goal_column);
2659 let reversed = start_column < tail.column();
2660
2661 let selection_ranges = (start_row.0..=end_row.0)
2662 .map(DisplayRow)
2663 .filter_map(|row| {
2664 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2665 let start = display_map
2666 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2667 .to_point(display_map);
2668 let end = display_map
2669 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2670 .to_point(display_map);
2671 if reversed {
2672 Some(end..start)
2673 } else {
2674 Some(start..end)
2675 }
2676 } else {
2677 None
2678 }
2679 })
2680 .collect::<Vec<_>>();
2681
2682 self.change_selections(None, cx, |s| {
2683 s.select_ranges(selection_ranges);
2684 });
2685 cx.notify();
2686 }
2687
2688 pub fn has_pending_nonempty_selection(&self) -> bool {
2689 let pending_nonempty_selection = match self.selections.pending_anchor() {
2690 Some(Selection { start, end, .. }) => start != end,
2691 None => false,
2692 };
2693 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2694 }
2695
2696 pub fn has_pending_selection(&self) -> bool {
2697 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2698 }
2699
2700 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2701 self.clear_expanded_diff_hunks(cx);
2702 if self.dismiss_menus_and_popups(true, cx) {
2703 return;
2704 }
2705
2706 if self.mode == EditorMode::Full {
2707 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2708 return;
2709 }
2710 }
2711
2712 cx.propagate();
2713 }
2714
2715 pub fn dismiss_menus_and_popups(
2716 &mut self,
2717 should_report_inline_completion_event: bool,
2718 cx: &mut ViewContext<Self>,
2719 ) -> bool {
2720 if self.take_rename(false, cx).is_some() {
2721 return true;
2722 }
2723
2724 if hide_hover(self, cx) {
2725 return true;
2726 }
2727
2728 if self.hide_context_menu(cx).is_some() {
2729 return true;
2730 }
2731
2732 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2733 return true;
2734 }
2735
2736 if self.snippet_stack.pop().is_some() {
2737 return true;
2738 }
2739
2740 if self.mode == EditorMode::Full {
2741 if self.active_diagnostics.is_some() {
2742 self.dismiss_diagnostics(cx);
2743 return true;
2744 }
2745 }
2746
2747 false
2748 }
2749
2750 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2751 let text: Arc<str> = text.into();
2752
2753 if self.read_only(cx) {
2754 return;
2755 }
2756
2757 let selections = self.selections.all_adjusted(cx);
2758 let mut brace_inserted = false;
2759 let mut edits = Vec::new();
2760 let mut new_selections = Vec::with_capacity(selections.len());
2761 let mut new_autoclose_regions = Vec::new();
2762 let snapshot = self.buffer.read(cx).read(cx);
2763
2764 for (selection, autoclose_region) in
2765 self.selections_with_autoclose_regions(selections, &snapshot)
2766 {
2767 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2768 // Determine if the inserted text matches the opening or closing
2769 // bracket of any of this language's bracket pairs.
2770 let mut bracket_pair = None;
2771 let mut is_bracket_pair_start = false;
2772 let mut is_bracket_pair_end = false;
2773 if !text.is_empty() {
2774 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2775 // and they are removing the character that triggered IME popup.
2776 for (pair, enabled) in scope.brackets() {
2777 if !pair.close {
2778 continue;
2779 }
2780
2781 if enabled && pair.start.ends_with(text.as_ref()) {
2782 bracket_pair = Some(pair.clone());
2783 is_bracket_pair_start = true;
2784 break;
2785 }
2786 if pair.end.as_str() == text.as_ref() {
2787 bracket_pair = Some(pair.clone());
2788 is_bracket_pair_end = true;
2789 break;
2790 }
2791 }
2792 }
2793
2794 if let Some(bracket_pair) = bracket_pair {
2795 if selection.is_empty() {
2796 if is_bracket_pair_start {
2797 let prefix_len = bracket_pair.start.len() - text.len();
2798
2799 // If the inserted text is a suffix of an opening bracket and the
2800 // selection is preceded by the rest of the opening bracket, then
2801 // insert the closing bracket.
2802 let following_text_allows_autoclose = snapshot
2803 .chars_at(selection.start)
2804 .next()
2805 .map_or(true, |c| scope.should_autoclose_before(c));
2806 let preceding_text_matches_prefix = prefix_len == 0
2807 || (selection.start.column >= (prefix_len as u32)
2808 && snapshot.contains_str_at(
2809 Point::new(
2810 selection.start.row,
2811 selection.start.column - (prefix_len as u32),
2812 ),
2813 &bracket_pair.start[..prefix_len],
2814 ));
2815 let autoclose = self.use_autoclose
2816 && snapshot.settings_at(selection.start, cx).use_autoclose;
2817 if autoclose
2818 && following_text_allows_autoclose
2819 && preceding_text_matches_prefix
2820 {
2821 let anchor = snapshot.anchor_before(selection.end);
2822 new_selections.push((selection.map(|_| anchor), text.len()));
2823 new_autoclose_regions.push((
2824 anchor,
2825 text.len(),
2826 selection.id,
2827 bracket_pair.clone(),
2828 ));
2829 edits.push((
2830 selection.range(),
2831 format!("{}{}", text, bracket_pair.end).into(),
2832 ));
2833 brace_inserted = true;
2834 continue;
2835 }
2836 }
2837
2838 if let Some(region) = autoclose_region {
2839 // If the selection is followed by an auto-inserted closing bracket,
2840 // then don't insert that closing bracket again; just move the selection
2841 // past the closing bracket.
2842 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2843 && text.as_ref() == region.pair.end.as_str();
2844 if should_skip {
2845 let anchor = snapshot.anchor_after(selection.end);
2846 new_selections
2847 .push((selection.map(|_| anchor), region.pair.end.len()));
2848 continue;
2849 }
2850 }
2851
2852 let always_treat_brackets_as_autoclosed = snapshot
2853 .settings_at(selection.start, cx)
2854 .always_treat_brackets_as_autoclosed;
2855 if always_treat_brackets_as_autoclosed
2856 && is_bracket_pair_end
2857 && snapshot.contains_str_at(selection.end, text.as_ref())
2858 {
2859 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2860 // and the inserted text is a closing bracket and the selection is followed
2861 // by the closing bracket then move the selection past the closing bracket.
2862 let anchor = snapshot.anchor_after(selection.end);
2863 new_selections.push((selection.map(|_| anchor), text.len()));
2864 continue;
2865 }
2866 }
2867 // If an opening bracket is 1 character long and is typed while
2868 // text is selected, then surround that text with the bracket pair.
2869 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2870 edits.push((selection.start..selection.start, text.clone()));
2871 edits.push((
2872 selection.end..selection.end,
2873 bracket_pair.end.as_str().into(),
2874 ));
2875 brace_inserted = true;
2876 new_selections.push((
2877 Selection {
2878 id: selection.id,
2879 start: snapshot.anchor_after(selection.start),
2880 end: snapshot.anchor_before(selection.end),
2881 reversed: selection.reversed,
2882 goal: selection.goal,
2883 },
2884 0,
2885 ));
2886 continue;
2887 }
2888 }
2889 }
2890
2891 if self.auto_replace_emoji_shortcode
2892 && selection.is_empty()
2893 && text.as_ref().ends_with(':')
2894 {
2895 if let Some(possible_emoji_short_code) =
2896 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2897 {
2898 if !possible_emoji_short_code.is_empty() {
2899 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2900 let emoji_shortcode_start = Point::new(
2901 selection.start.row,
2902 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2903 );
2904
2905 // Remove shortcode from buffer
2906 edits.push((
2907 emoji_shortcode_start..selection.start,
2908 "".to_string().into(),
2909 ));
2910 new_selections.push((
2911 Selection {
2912 id: selection.id,
2913 start: snapshot.anchor_after(emoji_shortcode_start),
2914 end: snapshot.anchor_before(selection.start),
2915 reversed: selection.reversed,
2916 goal: selection.goal,
2917 },
2918 0,
2919 ));
2920
2921 // Insert emoji
2922 let selection_start_anchor = snapshot.anchor_after(selection.start);
2923 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2924 edits.push((selection.start..selection.end, emoji.to_string().into()));
2925
2926 continue;
2927 }
2928 }
2929 }
2930 }
2931
2932 // If not handling any auto-close operation, then just replace the selected
2933 // text with the given input and move the selection to the end of the
2934 // newly inserted text.
2935 let anchor = snapshot.anchor_after(selection.end);
2936 new_selections.push((selection.map(|_| anchor), 0));
2937 edits.push((selection.start..selection.end, text.clone()));
2938 }
2939
2940 drop(snapshot);
2941 self.transact(cx, |this, cx| {
2942 this.buffer.update(cx, |buffer, cx| {
2943 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2944 });
2945
2946 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2947 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2948 let snapshot = this.buffer.read(cx).read(cx);
2949 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2950 .zip(new_selection_deltas)
2951 .map(|(selection, delta)| Selection {
2952 id: selection.id,
2953 start: selection.start + delta,
2954 end: selection.end + delta,
2955 reversed: selection.reversed,
2956 goal: SelectionGoal::None,
2957 })
2958 .collect::<Vec<_>>();
2959
2960 let mut i = 0;
2961 for (position, delta, selection_id, pair) in new_autoclose_regions {
2962 let position = position.to_offset(&snapshot) + delta;
2963 let start = snapshot.anchor_before(position);
2964 let end = snapshot.anchor_after(position);
2965 while let Some(existing_state) = this.autoclose_regions.get(i) {
2966 match existing_state.range.start.cmp(&start, &snapshot) {
2967 Ordering::Less => i += 1,
2968 Ordering::Greater => break,
2969 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2970 Ordering::Less => i += 1,
2971 Ordering::Equal => break,
2972 Ordering::Greater => break,
2973 },
2974 }
2975 }
2976 this.autoclose_regions.insert(
2977 i,
2978 AutocloseRegion {
2979 selection_id,
2980 range: start..end,
2981 pair,
2982 },
2983 );
2984 }
2985
2986 drop(snapshot);
2987 let had_active_inline_completion = this.has_active_inline_completion(cx);
2988 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2989 s.select(new_selections)
2990 });
2991
2992 if brace_inserted {
2993 // If we inserted a brace while composing text (i.e. typing `"` on a
2994 // Brazilian keyboard), exit the composing state because most likely
2995 // the user wanted to surround the selection.
2996 this.unmark_text(cx);
2997 } else if EditorSettings::get_global(cx).use_on_type_format {
2998 if let Some(on_type_format_task) =
2999 this.trigger_on_type_formatting(text.to_string(), cx)
3000 {
3001 on_type_format_task.detach_and_log_err(cx);
3002 }
3003 }
3004
3005 let trigger_in_words = !had_active_inline_completion;
3006 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3007 this.refresh_inline_completion(true, cx);
3008 });
3009 }
3010
3011 fn find_possible_emoji_shortcode_at_position(
3012 snapshot: &MultiBufferSnapshot,
3013 position: Point,
3014 ) -> Option<String> {
3015 let mut chars = Vec::new();
3016 let mut found_colon = false;
3017 for char in snapshot.reversed_chars_at(position).take(100) {
3018 // Found a possible emoji shortcode in the middle of the buffer
3019 if found_colon {
3020 if char.is_whitespace() {
3021 chars.reverse();
3022 return Some(chars.iter().collect());
3023 }
3024 // If the previous character is not a whitespace, we are in the middle of a word
3025 // and we only want to complete the shortcode if the word is made up of other emojis
3026 let mut containing_word = String::new();
3027 for ch in snapshot
3028 .reversed_chars_at(position)
3029 .skip(chars.len() + 1)
3030 .take(100)
3031 {
3032 if ch.is_whitespace() {
3033 break;
3034 }
3035 containing_word.push(ch);
3036 }
3037 let containing_word = containing_word.chars().rev().collect::<String>();
3038 if util::word_consists_of_emojis(containing_word.as_str()) {
3039 chars.reverse();
3040 return Some(chars.iter().collect());
3041 }
3042 }
3043
3044 if char.is_whitespace() || !char.is_ascii() {
3045 return None;
3046 }
3047 if char == ':' {
3048 found_colon = true;
3049 } else {
3050 chars.push(char);
3051 }
3052 }
3053 // Found a possible emoji shortcode at the beginning of the buffer
3054 chars.reverse();
3055 Some(chars.iter().collect())
3056 }
3057
3058 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3059 self.transact(cx, |this, cx| {
3060 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3061 let selections = this.selections.all::<usize>(cx);
3062 let multi_buffer = this.buffer.read(cx);
3063 let buffer = multi_buffer.snapshot(cx);
3064 selections
3065 .iter()
3066 .map(|selection| {
3067 let start_point = selection.start.to_point(&buffer);
3068 let mut indent =
3069 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3070 indent.len = cmp::min(indent.len, start_point.column);
3071 let start = selection.start;
3072 let end = selection.end;
3073 let selection_is_empty = start == end;
3074 let language_scope = buffer.language_scope_at(start);
3075 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3076 &language_scope
3077 {
3078 let leading_whitespace_len = buffer
3079 .reversed_chars_at(start)
3080 .take_while(|c| c.is_whitespace() && *c != '\n')
3081 .map(|c| c.len_utf8())
3082 .sum::<usize>();
3083
3084 let trailing_whitespace_len = buffer
3085 .chars_at(end)
3086 .take_while(|c| c.is_whitespace() && *c != '\n')
3087 .map(|c| c.len_utf8())
3088 .sum::<usize>();
3089
3090 let insert_extra_newline =
3091 language.brackets().any(|(pair, enabled)| {
3092 let pair_start = pair.start.trim_end();
3093 let pair_end = pair.end.trim_start();
3094
3095 enabled
3096 && pair.newline
3097 && buffer.contains_str_at(
3098 end + trailing_whitespace_len,
3099 pair_end,
3100 )
3101 && buffer.contains_str_at(
3102 (start - leading_whitespace_len)
3103 .saturating_sub(pair_start.len()),
3104 pair_start,
3105 )
3106 });
3107
3108 // Comment extension on newline is allowed only for cursor selections
3109 let comment_delimiter = maybe!({
3110 if !selection_is_empty {
3111 return None;
3112 }
3113
3114 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3115 return None;
3116 }
3117
3118 let delimiters = language.line_comment_prefixes();
3119 let max_len_of_delimiter =
3120 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3121 let (snapshot, range) =
3122 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3123
3124 let mut index_of_first_non_whitespace = 0;
3125 let comment_candidate = snapshot
3126 .chars_for_range(range)
3127 .skip_while(|c| {
3128 let should_skip = c.is_whitespace();
3129 if should_skip {
3130 index_of_first_non_whitespace += 1;
3131 }
3132 should_skip
3133 })
3134 .take(max_len_of_delimiter)
3135 .collect::<String>();
3136 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3137 comment_candidate.starts_with(comment_prefix.as_ref())
3138 })?;
3139 let cursor_is_placed_after_comment_marker =
3140 index_of_first_non_whitespace + comment_prefix.len()
3141 <= start_point.column as usize;
3142 if cursor_is_placed_after_comment_marker {
3143 Some(comment_prefix.clone())
3144 } else {
3145 None
3146 }
3147 });
3148 (comment_delimiter, insert_extra_newline)
3149 } else {
3150 (None, false)
3151 };
3152
3153 let capacity_for_delimiter = comment_delimiter
3154 .as_deref()
3155 .map(str::len)
3156 .unwrap_or_default();
3157 let mut new_text =
3158 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3159 new_text.push_str("\n");
3160 new_text.extend(indent.chars());
3161 if let Some(delimiter) = &comment_delimiter {
3162 new_text.push_str(&delimiter);
3163 }
3164 if insert_extra_newline {
3165 new_text = new_text.repeat(2);
3166 }
3167
3168 let anchor = buffer.anchor_after(end);
3169 let new_selection = selection.map(|_| anchor);
3170 (
3171 (start..end, new_text),
3172 (insert_extra_newline, new_selection),
3173 )
3174 })
3175 .unzip()
3176 };
3177
3178 this.edit_with_autoindent(edits, cx);
3179 let buffer = this.buffer.read(cx).snapshot(cx);
3180 let new_selections = selection_fixup_info
3181 .into_iter()
3182 .map(|(extra_newline_inserted, new_selection)| {
3183 let mut cursor = new_selection.end.to_point(&buffer);
3184 if extra_newline_inserted {
3185 cursor.row -= 1;
3186 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3187 }
3188 new_selection.map(|_| cursor)
3189 })
3190 .collect();
3191
3192 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3193 this.refresh_inline_completion(true, cx);
3194 });
3195 }
3196
3197 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3198 let buffer = self.buffer.read(cx);
3199 let snapshot = buffer.snapshot(cx);
3200
3201 let mut edits = Vec::new();
3202 let mut rows = Vec::new();
3203
3204 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3205 let cursor = selection.head();
3206 let row = cursor.row;
3207
3208 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3209
3210 let newline = "\n".to_string();
3211 edits.push((start_of_line..start_of_line, newline));
3212
3213 rows.push(row + rows_inserted as u32);
3214 }
3215
3216 self.transact(cx, |editor, cx| {
3217 editor.edit(edits, cx);
3218
3219 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3220 let mut index = 0;
3221 s.move_cursors_with(|map, _, _| {
3222 let row = rows[index];
3223 index += 1;
3224
3225 let point = Point::new(row, 0);
3226 let boundary = map.next_line_boundary(point).1;
3227 let clipped = map.clip_point(boundary, Bias::Left);
3228
3229 (clipped, SelectionGoal::None)
3230 });
3231 });
3232
3233 let mut indent_edits = Vec::new();
3234 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3235 for row in rows {
3236 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3237 for (row, indent) in indents {
3238 if indent.len == 0 {
3239 continue;
3240 }
3241
3242 let text = match indent.kind {
3243 IndentKind::Space => " ".repeat(indent.len as usize),
3244 IndentKind::Tab => "\t".repeat(indent.len as usize),
3245 };
3246 let point = Point::new(row.0, 0);
3247 indent_edits.push((point..point, text));
3248 }
3249 }
3250 editor.edit(indent_edits, cx);
3251 });
3252 }
3253
3254 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3255 let buffer = self.buffer.read(cx);
3256 let snapshot = buffer.snapshot(cx);
3257
3258 let mut edits = Vec::new();
3259 let mut rows = Vec::new();
3260 let mut rows_inserted = 0;
3261
3262 for selection in self.selections.all_adjusted(cx) {
3263 let cursor = selection.head();
3264 let row = cursor.row;
3265
3266 let point = Point::new(row + 1, 0);
3267 let start_of_line = snapshot.clip_point(point, Bias::Left);
3268
3269 let newline = "\n".to_string();
3270 edits.push((start_of_line..start_of_line, newline));
3271
3272 rows_inserted += 1;
3273 rows.push(row + rows_inserted);
3274 }
3275
3276 self.transact(cx, |editor, cx| {
3277 editor.edit(edits, cx);
3278
3279 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3280 let mut index = 0;
3281 s.move_cursors_with(|map, _, _| {
3282 let row = rows[index];
3283 index += 1;
3284
3285 let point = Point::new(row, 0);
3286 let boundary = map.next_line_boundary(point).1;
3287 let clipped = map.clip_point(boundary, Bias::Left);
3288
3289 (clipped, SelectionGoal::None)
3290 });
3291 });
3292
3293 let mut indent_edits = Vec::new();
3294 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3295 for row in rows {
3296 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3297 for (row, indent) in indents {
3298 if indent.len == 0 {
3299 continue;
3300 }
3301
3302 let text = match indent.kind {
3303 IndentKind::Space => " ".repeat(indent.len as usize),
3304 IndentKind::Tab => "\t".repeat(indent.len as usize),
3305 };
3306 let point = Point::new(row.0, 0);
3307 indent_edits.push((point..point, text));
3308 }
3309 }
3310 editor.edit(indent_edits, cx);
3311 });
3312 }
3313
3314 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3315 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3316 original_indent_columns: Vec::new(),
3317 });
3318 self.insert_with_autoindent_mode(text, autoindent, cx);
3319 }
3320
3321 fn insert_with_autoindent_mode(
3322 &mut self,
3323 text: &str,
3324 autoindent_mode: Option<AutoindentMode>,
3325 cx: &mut ViewContext<Self>,
3326 ) {
3327 if self.read_only(cx) {
3328 return;
3329 }
3330
3331 let text: Arc<str> = text.into();
3332 self.transact(cx, |this, cx| {
3333 let old_selections = this.selections.all_adjusted(cx);
3334 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3335 let anchors = {
3336 let snapshot = buffer.read(cx);
3337 old_selections
3338 .iter()
3339 .map(|s| {
3340 let anchor = snapshot.anchor_after(s.head());
3341 s.map(|_| anchor)
3342 })
3343 .collect::<Vec<_>>()
3344 };
3345 buffer.edit(
3346 old_selections
3347 .iter()
3348 .map(|s| (s.start..s.end, text.clone())),
3349 autoindent_mode,
3350 cx,
3351 );
3352 anchors
3353 });
3354
3355 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3356 s.select_anchors(selection_anchors);
3357 })
3358 });
3359 }
3360
3361 fn trigger_completion_on_input(
3362 &mut self,
3363 text: &str,
3364 trigger_in_words: bool,
3365 cx: &mut ViewContext<Self>,
3366 ) {
3367 if self.is_completion_trigger(text, trigger_in_words, cx) {
3368 self.show_completions(&ShowCompletions, cx);
3369 } else {
3370 self.hide_context_menu(cx);
3371 }
3372 }
3373
3374 fn is_completion_trigger(
3375 &self,
3376 text: &str,
3377 trigger_in_words: bool,
3378 cx: &mut ViewContext<Self>,
3379 ) -> bool {
3380 let position = self.selections.newest_anchor().head();
3381 let multibuffer = self.buffer.read(cx);
3382 let Some(buffer) = position
3383 .buffer_id
3384 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3385 else {
3386 return false;
3387 };
3388
3389 if let Some(completion_provider) = &self.completion_provider {
3390 completion_provider.is_completion_trigger(
3391 &buffer,
3392 position.text_anchor,
3393 text,
3394 trigger_in_words,
3395 cx,
3396 )
3397 } else {
3398 false
3399 }
3400 }
3401
3402 /// If any empty selections is touching the start of its innermost containing autoclose
3403 /// region, expand it to select the brackets.
3404 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3405 let selections = self.selections.all::<usize>(cx);
3406 let buffer = self.buffer.read(cx).read(cx);
3407 let new_selections = self
3408 .selections_with_autoclose_regions(selections, &buffer)
3409 .map(|(mut selection, region)| {
3410 if !selection.is_empty() {
3411 return selection;
3412 }
3413
3414 if let Some(region) = region {
3415 let mut range = region.range.to_offset(&buffer);
3416 if selection.start == range.start && range.start >= region.pair.start.len() {
3417 range.start -= region.pair.start.len();
3418 if buffer.contains_str_at(range.start, ®ion.pair.start)
3419 && buffer.contains_str_at(range.end, ®ion.pair.end)
3420 {
3421 range.end += region.pair.end.len();
3422 selection.start = range.start;
3423 selection.end = range.end;
3424
3425 return selection;
3426 }
3427 }
3428 }
3429
3430 let always_treat_brackets_as_autoclosed = buffer
3431 .settings_at(selection.start, cx)
3432 .always_treat_brackets_as_autoclosed;
3433
3434 if !always_treat_brackets_as_autoclosed {
3435 return selection;
3436 }
3437
3438 if let Some(scope) = buffer.language_scope_at(selection.start) {
3439 for (pair, enabled) in scope.brackets() {
3440 if !enabled || !pair.close {
3441 continue;
3442 }
3443
3444 if buffer.contains_str_at(selection.start, &pair.end) {
3445 let pair_start_len = pair.start.len();
3446 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3447 {
3448 selection.start -= pair_start_len;
3449 selection.end += pair.end.len();
3450
3451 return selection;
3452 }
3453 }
3454 }
3455 }
3456
3457 selection
3458 })
3459 .collect();
3460
3461 drop(buffer);
3462 self.change_selections(None, cx, |selections| selections.select(new_selections));
3463 }
3464
3465 /// Iterate the given selections, and for each one, find the smallest surrounding
3466 /// autoclose region. This uses the ordering of the selections and the autoclose
3467 /// regions to avoid repeated comparisons.
3468 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3469 &'a self,
3470 selections: impl IntoIterator<Item = Selection<D>>,
3471 buffer: &'a MultiBufferSnapshot,
3472 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3473 let mut i = 0;
3474 let mut regions = self.autoclose_regions.as_slice();
3475 selections.into_iter().map(move |selection| {
3476 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3477
3478 let mut enclosing = None;
3479 while let Some(pair_state) = regions.get(i) {
3480 if pair_state.range.end.to_offset(buffer) < range.start {
3481 regions = ®ions[i + 1..];
3482 i = 0;
3483 } else if pair_state.range.start.to_offset(buffer) > range.end {
3484 break;
3485 } else {
3486 if pair_state.selection_id == selection.id {
3487 enclosing = Some(pair_state);
3488 }
3489 i += 1;
3490 }
3491 }
3492
3493 (selection.clone(), enclosing)
3494 })
3495 }
3496
3497 /// Remove any autoclose regions that no longer contain their selection.
3498 fn invalidate_autoclose_regions(
3499 &mut self,
3500 mut selections: &[Selection<Anchor>],
3501 buffer: &MultiBufferSnapshot,
3502 ) {
3503 self.autoclose_regions.retain(|state| {
3504 let mut i = 0;
3505 while let Some(selection) = selections.get(i) {
3506 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3507 selections = &selections[1..];
3508 continue;
3509 }
3510 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3511 break;
3512 }
3513 if selection.id == state.selection_id {
3514 return true;
3515 } else {
3516 i += 1;
3517 }
3518 }
3519 false
3520 });
3521 }
3522
3523 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3524 let offset = position.to_offset(buffer);
3525 let (word_range, kind) = buffer.surrounding_word(offset);
3526 if offset > word_range.start && kind == Some(CharKind::Word) {
3527 Some(
3528 buffer
3529 .text_for_range(word_range.start..offset)
3530 .collect::<String>(),
3531 )
3532 } else {
3533 None
3534 }
3535 }
3536
3537 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3538 self.refresh_inlay_hints(
3539 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3540 cx,
3541 );
3542 }
3543
3544 pub fn inlay_hints_enabled(&self) -> bool {
3545 self.inlay_hint_cache.enabled
3546 }
3547
3548 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3549 if self.project.is_none() || self.mode != EditorMode::Full {
3550 return;
3551 }
3552
3553 let reason_description = reason.description();
3554 let ignore_debounce = matches!(
3555 reason,
3556 InlayHintRefreshReason::SettingsChange(_)
3557 | InlayHintRefreshReason::Toggle(_)
3558 | InlayHintRefreshReason::ExcerptsRemoved(_)
3559 );
3560 let (invalidate_cache, required_languages) = match reason {
3561 InlayHintRefreshReason::Toggle(enabled) => {
3562 self.inlay_hint_cache.enabled = enabled;
3563 if enabled {
3564 (InvalidationStrategy::RefreshRequested, None)
3565 } else {
3566 self.inlay_hint_cache.clear();
3567 self.splice_inlays(
3568 self.visible_inlay_hints(cx)
3569 .iter()
3570 .map(|inlay| inlay.id)
3571 .collect(),
3572 Vec::new(),
3573 cx,
3574 );
3575 return;
3576 }
3577 }
3578 InlayHintRefreshReason::SettingsChange(new_settings) => {
3579 match self.inlay_hint_cache.update_settings(
3580 &self.buffer,
3581 new_settings,
3582 self.visible_inlay_hints(cx),
3583 cx,
3584 ) {
3585 ControlFlow::Break(Some(InlaySplice {
3586 to_remove,
3587 to_insert,
3588 })) => {
3589 self.splice_inlays(to_remove, to_insert, cx);
3590 return;
3591 }
3592 ControlFlow::Break(None) => return,
3593 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3594 }
3595 }
3596 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3597 if let Some(InlaySplice {
3598 to_remove,
3599 to_insert,
3600 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3601 {
3602 self.splice_inlays(to_remove, to_insert, cx);
3603 }
3604 return;
3605 }
3606 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3607 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3608 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3609 }
3610 InlayHintRefreshReason::RefreshRequested => {
3611 (InvalidationStrategy::RefreshRequested, None)
3612 }
3613 };
3614
3615 if let Some(InlaySplice {
3616 to_remove,
3617 to_insert,
3618 }) = self.inlay_hint_cache.spawn_hint_refresh(
3619 reason_description,
3620 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3621 invalidate_cache,
3622 ignore_debounce,
3623 cx,
3624 ) {
3625 self.splice_inlays(to_remove, to_insert, cx);
3626 }
3627 }
3628
3629 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3630 self.display_map
3631 .read(cx)
3632 .current_inlays()
3633 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3634 .cloned()
3635 .collect()
3636 }
3637
3638 pub fn excerpts_for_inlay_hints_query(
3639 &self,
3640 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3641 cx: &mut ViewContext<Editor>,
3642 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3643 let Some(project) = self.project.as_ref() else {
3644 return HashMap::default();
3645 };
3646 let project = project.read(cx);
3647 let multi_buffer = self.buffer().read(cx);
3648 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3649 let multi_buffer_visible_start = self
3650 .scroll_manager
3651 .anchor()
3652 .anchor
3653 .to_point(&multi_buffer_snapshot);
3654 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3655 multi_buffer_visible_start
3656 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3657 Bias::Left,
3658 );
3659 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3660 multi_buffer
3661 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3662 .into_iter()
3663 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3664 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3665 let buffer = buffer_handle.read(cx);
3666 let buffer_file = project::File::from_dyn(buffer.file())?;
3667 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3668 let worktree_entry = buffer_worktree
3669 .read(cx)
3670 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3671 if worktree_entry.is_ignored {
3672 return None;
3673 }
3674
3675 let language = buffer.language()?;
3676 if let Some(restrict_to_languages) = restrict_to_languages {
3677 if !restrict_to_languages.contains(language) {
3678 return None;
3679 }
3680 }
3681 Some((
3682 excerpt_id,
3683 (
3684 buffer_handle,
3685 buffer.version().clone(),
3686 excerpt_visible_range,
3687 ),
3688 ))
3689 })
3690 .collect()
3691 }
3692
3693 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3694 TextLayoutDetails {
3695 text_system: cx.text_system().clone(),
3696 editor_style: self.style.clone().unwrap(),
3697 rem_size: cx.rem_size(),
3698 scroll_anchor: self.scroll_manager.anchor(),
3699 visible_rows: self.visible_line_count(),
3700 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3701 }
3702 }
3703
3704 fn splice_inlays(
3705 &self,
3706 to_remove: Vec<InlayId>,
3707 to_insert: Vec<Inlay>,
3708 cx: &mut ViewContext<Self>,
3709 ) {
3710 self.display_map.update(cx, |display_map, cx| {
3711 display_map.splice_inlays(to_remove, to_insert, cx);
3712 });
3713 cx.notify();
3714 }
3715
3716 fn trigger_on_type_formatting(
3717 &self,
3718 input: String,
3719 cx: &mut ViewContext<Self>,
3720 ) -> Option<Task<Result<()>>> {
3721 if input.len() != 1 {
3722 return None;
3723 }
3724
3725 let project = self.project.as_ref()?;
3726 let position = self.selections.newest_anchor().head();
3727 let (buffer, buffer_position) = self
3728 .buffer
3729 .read(cx)
3730 .text_anchor_for_position(position, cx)?;
3731
3732 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3733 // hence we do LSP request & edit on host side only — add formats to host's history.
3734 let push_to_lsp_host_history = true;
3735 // If this is not the host, append its history with new edits.
3736 let push_to_client_history = project.read(cx).is_remote();
3737
3738 let on_type_formatting = project.update(cx, |project, cx| {
3739 project.on_type_format(
3740 buffer.clone(),
3741 buffer_position,
3742 input,
3743 push_to_lsp_host_history,
3744 cx,
3745 )
3746 });
3747 Some(cx.spawn(|editor, mut cx| async move {
3748 if let Some(transaction) = on_type_formatting.await? {
3749 if push_to_client_history {
3750 buffer
3751 .update(&mut cx, |buffer, _| {
3752 buffer.push_transaction(transaction, Instant::now());
3753 })
3754 .ok();
3755 }
3756 editor.update(&mut cx, |editor, cx| {
3757 editor.refresh_document_highlights(cx);
3758 })?;
3759 }
3760 Ok(())
3761 }))
3762 }
3763
3764 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3765 if self.pending_rename.is_some() {
3766 return;
3767 }
3768
3769 let Some(provider) = self.completion_provider.as_ref() else {
3770 return;
3771 };
3772
3773 let position = self.selections.newest_anchor().head();
3774 let (buffer, buffer_position) =
3775 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3776 output
3777 } else {
3778 return;
3779 };
3780
3781 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3782 let completions = provider.completions(&buffer, buffer_position, cx);
3783
3784 let id = post_inc(&mut self.next_completion_id);
3785 let task = cx.spawn(|this, mut cx| {
3786 async move {
3787 let completions = completions.await.log_err();
3788 let menu = if let Some(completions) = completions {
3789 let mut menu = CompletionsMenu {
3790 id,
3791 initial_position: position,
3792 match_candidates: completions
3793 .iter()
3794 .enumerate()
3795 .map(|(id, completion)| {
3796 StringMatchCandidate::new(
3797 id,
3798 completion.label.text[completion.label.filter_range.clone()]
3799 .into(),
3800 )
3801 })
3802 .collect(),
3803 buffer: buffer.clone(),
3804 completions: Arc::new(RwLock::new(completions.into())),
3805 matches: Vec::new().into(),
3806 selected_item: 0,
3807 scroll_handle: UniformListScrollHandle::new(),
3808 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3809 DebouncedDelay::new(),
3810 )),
3811 };
3812 menu.filter(query.as_deref(), cx.background_executor().clone())
3813 .await;
3814
3815 if menu.matches.is_empty() {
3816 None
3817 } else {
3818 this.update(&mut cx, |editor, cx| {
3819 let completions = menu.completions.clone();
3820 let matches = menu.matches.clone();
3821
3822 let delay_ms = EditorSettings::get_global(cx)
3823 .completion_documentation_secondary_query_debounce;
3824 let delay = Duration::from_millis(delay_ms);
3825
3826 editor
3827 .completion_documentation_pre_resolve_debounce
3828 .fire_new(delay, cx, |editor, cx| {
3829 CompletionsMenu::pre_resolve_completion_documentation(
3830 buffer,
3831 completions,
3832 matches,
3833 editor,
3834 cx,
3835 )
3836 });
3837 })
3838 .ok();
3839 Some(menu)
3840 }
3841 } else {
3842 None
3843 };
3844
3845 this.update(&mut cx, |this, cx| {
3846 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3847
3848 let mut context_menu = this.context_menu.write();
3849 match context_menu.as_ref() {
3850 None => {}
3851
3852 Some(ContextMenu::Completions(prev_menu)) => {
3853 if prev_menu.id > id {
3854 return;
3855 }
3856 }
3857
3858 _ => return,
3859 }
3860
3861 if this.focus_handle.is_focused(cx) && menu.is_some() {
3862 let menu = menu.unwrap();
3863 *context_menu = Some(ContextMenu::Completions(menu));
3864 drop(context_menu);
3865 this.discard_inline_completion(false, cx);
3866 cx.notify();
3867 } else if this.completion_tasks.len() <= 1 {
3868 // If there are no more completion tasks and the last menu was
3869 // empty, we should hide it. If it was already hidden, we should
3870 // also show the copilot completion when available.
3871 drop(context_menu);
3872 if this.hide_context_menu(cx).is_none() {
3873 this.update_visible_inline_completion(cx);
3874 }
3875 }
3876 })?;
3877
3878 Ok::<_, anyhow::Error>(())
3879 }
3880 .log_err()
3881 });
3882
3883 self.completion_tasks.push((id, task));
3884 }
3885
3886 pub fn confirm_completion(
3887 &mut self,
3888 action: &ConfirmCompletion,
3889 cx: &mut ViewContext<Self>,
3890 ) -> Option<Task<Result<()>>> {
3891 use language::ToOffset as _;
3892
3893 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3894 menu
3895 } else {
3896 return None;
3897 };
3898
3899 let mat = completions_menu
3900 .matches
3901 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3902 let buffer_handle = completions_menu.buffer;
3903 let completions = completions_menu.completions.read();
3904 let completion = completions.get(mat.candidate_id)?;
3905 cx.stop_propagation();
3906
3907 let snippet;
3908 let text;
3909
3910 if completion.is_snippet() {
3911 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3912 text = snippet.as_ref().unwrap().text.clone();
3913 } else {
3914 snippet = None;
3915 text = completion.new_text.clone();
3916 };
3917 let selections = self.selections.all::<usize>(cx);
3918 let buffer = buffer_handle.read(cx);
3919 let old_range = completion.old_range.to_offset(buffer);
3920 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3921
3922 let newest_selection = self.selections.newest_anchor();
3923 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3924 return None;
3925 }
3926
3927 let lookbehind = newest_selection
3928 .start
3929 .text_anchor
3930 .to_offset(buffer)
3931 .saturating_sub(old_range.start);
3932 let lookahead = old_range
3933 .end
3934 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3935 let mut common_prefix_len = old_text
3936 .bytes()
3937 .zip(text.bytes())
3938 .take_while(|(a, b)| a == b)
3939 .count();
3940
3941 let snapshot = self.buffer.read(cx).snapshot(cx);
3942 let mut range_to_replace: Option<Range<isize>> = None;
3943 let mut ranges = Vec::new();
3944 for selection in &selections {
3945 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3946 let start = selection.start.saturating_sub(lookbehind);
3947 let end = selection.end + lookahead;
3948 if selection.id == newest_selection.id {
3949 range_to_replace = Some(
3950 ((start + common_prefix_len) as isize - selection.start as isize)
3951 ..(end as isize - selection.start as isize),
3952 );
3953 }
3954 ranges.push(start + common_prefix_len..end);
3955 } else {
3956 common_prefix_len = 0;
3957 ranges.clear();
3958 ranges.extend(selections.iter().map(|s| {
3959 if s.id == newest_selection.id {
3960 range_to_replace = Some(
3961 old_range.start.to_offset_utf16(&snapshot).0 as isize
3962 - selection.start as isize
3963 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3964 - selection.start as isize,
3965 );
3966 old_range.clone()
3967 } else {
3968 s.start..s.end
3969 }
3970 }));
3971 break;
3972 }
3973 }
3974 let text = &text[common_prefix_len..];
3975
3976 cx.emit(EditorEvent::InputHandled {
3977 utf16_range_to_replace: range_to_replace,
3978 text: text.into(),
3979 });
3980
3981 self.transact(cx, |this, cx| {
3982 if let Some(mut snippet) = snippet {
3983 snippet.text = text.to_string();
3984 for tabstop in snippet.tabstops.iter_mut().flatten() {
3985 tabstop.start -= common_prefix_len as isize;
3986 tabstop.end -= common_prefix_len as isize;
3987 }
3988
3989 this.insert_snippet(&ranges, snippet, cx).log_err();
3990 } else {
3991 this.buffer.update(cx, |buffer, cx| {
3992 buffer.edit(
3993 ranges.iter().map(|range| (range.clone(), text)),
3994 this.autoindent_mode.clone(),
3995 cx,
3996 );
3997 });
3998 }
3999
4000 this.refresh_inline_completion(true, cx);
4001 });
4002
4003 if let Some(confirm) = completion.confirm.as_ref() {
4004 (confirm)(cx);
4005 }
4006
4007 let provider = self.completion_provider.as_ref()?;
4008 let apply_edits = provider.apply_additional_edits_for_completion(
4009 buffer_handle,
4010 completion.clone(),
4011 true,
4012 cx,
4013 );
4014 Some(cx.foreground_executor().spawn(async move {
4015 apply_edits.await?;
4016 Ok(())
4017 }))
4018 }
4019
4020 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4021 let mut context_menu = self.context_menu.write();
4022 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4023 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4024 // Toggle if we're selecting the same one
4025 *context_menu = None;
4026 cx.notify();
4027 return;
4028 } else {
4029 // Otherwise, clear it and start a new one
4030 *context_menu = None;
4031 cx.notify();
4032 }
4033 }
4034 drop(context_menu);
4035 let snapshot = self.snapshot(cx);
4036 let deployed_from_indicator = action.deployed_from_indicator;
4037 let mut task = self.code_actions_task.take();
4038 let action = action.clone();
4039 cx.spawn(|editor, mut cx| async move {
4040 while let Some(prev_task) = task {
4041 prev_task.await;
4042 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4043 }
4044
4045 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4046 if editor.focus_handle.is_focused(cx) {
4047 let multibuffer_point = action
4048 .deployed_from_indicator
4049 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4050 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4051 let (buffer, buffer_row) = snapshot
4052 .buffer_snapshot
4053 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4054 .and_then(|(buffer_snapshot, range)| {
4055 editor
4056 .buffer
4057 .read(cx)
4058 .buffer(buffer_snapshot.remote_id())
4059 .map(|buffer| (buffer, range.start.row))
4060 })?;
4061 let (_, code_actions) = editor
4062 .available_code_actions
4063 .clone()
4064 .and_then(|(location, code_actions)| {
4065 let snapshot = location.buffer.read(cx).snapshot();
4066 let point_range = location.range.to_point(&snapshot);
4067 let point_range = point_range.start.row..=point_range.end.row;
4068 if point_range.contains(&buffer_row) {
4069 Some((location, code_actions))
4070 } else {
4071 None
4072 }
4073 })
4074 .unzip();
4075 let buffer_id = buffer.read(cx).remote_id();
4076 let tasks = editor
4077 .tasks
4078 .get(&(buffer_id, buffer_row))
4079 .map(|t| Arc::new(t.to_owned()));
4080 if tasks.is_none() && code_actions.is_none() {
4081 return None;
4082 }
4083
4084 editor.completion_tasks.clear();
4085 editor.discard_inline_completion(false, cx);
4086 let task_context =
4087 tasks
4088 .as_ref()
4089 .zip(editor.project.clone())
4090 .map(|(tasks, project)| {
4091 let position = Point::new(buffer_row, tasks.column);
4092 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4093 let location = Location {
4094 buffer: buffer.clone(),
4095 range: range_start..range_start,
4096 };
4097 // Fill in the environmental variables from the tree-sitter captures
4098 let mut captured_task_variables = TaskVariables::default();
4099 for (capture_name, value) in tasks.extra_variables.clone() {
4100 captured_task_variables.insert(
4101 task::VariableName::Custom(capture_name.into()),
4102 value.clone(),
4103 );
4104 }
4105 project.update(cx, |project, cx| {
4106 project.task_context_for_location(
4107 captured_task_variables,
4108 location,
4109 cx,
4110 )
4111 })
4112 });
4113
4114 Some(cx.spawn(|editor, mut cx| async move {
4115 let task_context = match task_context {
4116 Some(task_context) => task_context.await,
4117 None => None,
4118 };
4119 let resolved_tasks =
4120 tasks.zip(task_context).map(|(tasks, task_context)| {
4121 Arc::new(ResolvedTasks {
4122 templates: tasks
4123 .templates
4124 .iter()
4125 .filter_map(|(kind, template)| {
4126 template
4127 .resolve_task(&kind.to_id_base(), &task_context)
4128 .map(|task| (kind.clone(), task))
4129 })
4130 .collect(),
4131 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4132 multibuffer_point.row,
4133 tasks.column,
4134 )),
4135 })
4136 });
4137 let spawn_straight_away = resolved_tasks
4138 .as_ref()
4139 .map_or(false, |tasks| tasks.templates.len() == 1)
4140 && code_actions
4141 .as_ref()
4142 .map_or(true, |actions| actions.is_empty());
4143 if let Some(task) = editor
4144 .update(&mut cx, |editor, cx| {
4145 *editor.context_menu.write() =
4146 Some(ContextMenu::CodeActions(CodeActionsMenu {
4147 buffer,
4148 actions: CodeActionContents {
4149 tasks: resolved_tasks,
4150 actions: code_actions,
4151 },
4152 selected_item: Default::default(),
4153 scroll_handle: UniformListScrollHandle::default(),
4154 deployed_from_indicator,
4155 }));
4156 if spawn_straight_away {
4157 if let Some(task) = editor.confirm_code_action(
4158 &ConfirmCodeAction { item_ix: Some(0) },
4159 cx,
4160 ) {
4161 cx.notify();
4162 return task;
4163 }
4164 }
4165 cx.notify();
4166 Task::ready(Ok(()))
4167 })
4168 .ok()
4169 {
4170 task.await
4171 } else {
4172 Ok(())
4173 }
4174 }))
4175 } else {
4176 Some(Task::ready(Ok(())))
4177 }
4178 })?;
4179 if let Some(task) = spawned_test_task {
4180 task.await?;
4181 }
4182
4183 Ok::<_, anyhow::Error>(())
4184 })
4185 .detach_and_log_err(cx);
4186 }
4187
4188 pub fn confirm_code_action(
4189 &mut self,
4190 action: &ConfirmCodeAction,
4191 cx: &mut ViewContext<Self>,
4192 ) -> Option<Task<Result<()>>> {
4193 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4194 menu
4195 } else {
4196 return None;
4197 };
4198 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4199 let action = actions_menu.actions.get(action_ix)?;
4200 let title = action.label();
4201 let buffer = actions_menu.buffer;
4202 let workspace = self.workspace()?;
4203
4204 match action {
4205 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4206 workspace.update(cx, |workspace, cx| {
4207 workspace::tasks::schedule_resolved_task(
4208 workspace,
4209 task_source_kind,
4210 resolved_task,
4211 false,
4212 cx,
4213 );
4214
4215 Some(Task::ready(Ok(())))
4216 })
4217 }
4218 CodeActionsItem::CodeAction(action) => {
4219 let apply_code_actions = workspace
4220 .read(cx)
4221 .project()
4222 .clone()
4223 .update(cx, |project, cx| {
4224 project.apply_code_action(buffer, action, true, cx)
4225 });
4226 let workspace = workspace.downgrade();
4227 Some(cx.spawn(|editor, cx| async move {
4228 let project_transaction = apply_code_actions.await?;
4229 Self::open_project_transaction(
4230 &editor,
4231 workspace,
4232 project_transaction,
4233 title,
4234 cx,
4235 )
4236 .await
4237 }))
4238 }
4239 }
4240 }
4241
4242 pub async fn open_project_transaction(
4243 this: &WeakView<Editor>,
4244 workspace: WeakView<Workspace>,
4245 transaction: ProjectTransaction,
4246 title: String,
4247 mut cx: AsyncWindowContext,
4248 ) -> Result<()> {
4249 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4250
4251 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4252 cx.update(|cx| {
4253 entries.sort_unstable_by_key(|(buffer, _)| {
4254 buffer.read(cx).file().map(|f| f.path().clone())
4255 });
4256 })?;
4257
4258 // If the project transaction's edits are all contained within this editor, then
4259 // avoid opening a new editor to display them.
4260
4261 if let Some((buffer, transaction)) = entries.first() {
4262 if entries.len() == 1 {
4263 let excerpt = this.update(&mut cx, |editor, cx| {
4264 editor
4265 .buffer()
4266 .read(cx)
4267 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4268 })?;
4269 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4270 if excerpted_buffer == *buffer {
4271 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4272 let excerpt_range = excerpt_range.to_offset(buffer);
4273 buffer
4274 .edited_ranges_for_transaction::<usize>(transaction)
4275 .all(|range| {
4276 excerpt_range.start <= range.start
4277 && excerpt_range.end >= range.end
4278 })
4279 })?;
4280
4281 if all_edits_within_excerpt {
4282 return Ok(());
4283 }
4284 }
4285 }
4286 }
4287 } else {
4288 return Ok(());
4289 }
4290
4291 let mut ranges_to_highlight = Vec::new();
4292 let excerpt_buffer = cx.new_model(|cx| {
4293 let mut multibuffer =
4294 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4295 for (buffer_handle, transaction) in &entries {
4296 let buffer = buffer_handle.read(cx);
4297 ranges_to_highlight.extend(
4298 multibuffer.push_excerpts_with_context_lines(
4299 buffer_handle.clone(),
4300 buffer
4301 .edited_ranges_for_transaction::<usize>(transaction)
4302 .collect(),
4303 DEFAULT_MULTIBUFFER_CONTEXT,
4304 cx,
4305 ),
4306 );
4307 }
4308 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4309 multibuffer
4310 })?;
4311
4312 workspace.update(&mut cx, |workspace, cx| {
4313 let project = workspace.project().clone();
4314 let editor =
4315 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4316 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4317 editor.update(cx, |editor, cx| {
4318 editor.highlight_background::<Self>(
4319 &ranges_to_highlight,
4320 |theme| theme.editor_highlighted_line_background,
4321 cx,
4322 );
4323 });
4324 })?;
4325
4326 Ok(())
4327 }
4328
4329 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4330 let project = self.project.clone()?;
4331 let buffer = self.buffer.read(cx);
4332 let newest_selection = self.selections.newest_anchor().clone();
4333 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4334 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4335 if start_buffer != end_buffer {
4336 return None;
4337 }
4338
4339 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4340 cx.background_executor()
4341 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4342 .await;
4343
4344 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4345 project.code_actions(&start_buffer, start..end, cx)
4346 }) {
4347 code_actions.await
4348 } else {
4349 Vec::new()
4350 };
4351
4352 this.update(&mut cx, |this, cx| {
4353 this.available_code_actions = if actions.is_empty() {
4354 None
4355 } else {
4356 Some((
4357 Location {
4358 buffer: start_buffer,
4359 range: start..end,
4360 },
4361 actions.into(),
4362 ))
4363 };
4364 cx.notify();
4365 })
4366 .log_err();
4367 }));
4368 None
4369 }
4370
4371 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4372 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4373 self.show_git_blame_inline = false;
4374
4375 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4376 cx.background_executor().timer(delay).await;
4377
4378 this.update(&mut cx, |this, cx| {
4379 this.show_git_blame_inline = true;
4380 cx.notify();
4381 })
4382 .log_err();
4383 }));
4384 }
4385 }
4386
4387 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4388 if self.pending_rename.is_some() {
4389 return None;
4390 }
4391
4392 let project = self.project.clone()?;
4393 let buffer = self.buffer.read(cx);
4394 let newest_selection = self.selections.newest_anchor().clone();
4395 let cursor_position = newest_selection.head();
4396 let (cursor_buffer, cursor_buffer_position) =
4397 buffer.text_anchor_for_position(cursor_position, cx)?;
4398 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4399 if cursor_buffer != tail_buffer {
4400 return None;
4401 }
4402
4403 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4404 cx.background_executor()
4405 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4406 .await;
4407
4408 let highlights = if let Some(highlights) = project
4409 .update(&mut cx, |project, cx| {
4410 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4411 })
4412 .log_err()
4413 {
4414 highlights.await.log_err()
4415 } else {
4416 None
4417 };
4418
4419 if let Some(highlights) = highlights {
4420 this.update(&mut cx, |this, cx| {
4421 if this.pending_rename.is_some() {
4422 return;
4423 }
4424
4425 let buffer_id = cursor_position.buffer_id;
4426 let buffer = this.buffer.read(cx);
4427 if !buffer
4428 .text_anchor_for_position(cursor_position, cx)
4429 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4430 {
4431 return;
4432 }
4433
4434 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4435 let mut write_ranges = Vec::new();
4436 let mut read_ranges = Vec::new();
4437 for highlight in highlights {
4438 for (excerpt_id, excerpt_range) in
4439 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4440 {
4441 let start = highlight
4442 .range
4443 .start
4444 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4445 let end = highlight
4446 .range
4447 .end
4448 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4449 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4450 continue;
4451 }
4452
4453 let range = Anchor {
4454 buffer_id,
4455 excerpt_id: excerpt_id,
4456 text_anchor: start,
4457 }..Anchor {
4458 buffer_id,
4459 excerpt_id,
4460 text_anchor: end,
4461 };
4462 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4463 write_ranges.push(range);
4464 } else {
4465 read_ranges.push(range);
4466 }
4467 }
4468 }
4469
4470 this.highlight_background::<DocumentHighlightRead>(
4471 &read_ranges,
4472 |theme| theme.editor_document_highlight_read_background,
4473 cx,
4474 );
4475 this.highlight_background::<DocumentHighlightWrite>(
4476 &write_ranges,
4477 |theme| theme.editor_document_highlight_write_background,
4478 cx,
4479 );
4480 cx.notify();
4481 })
4482 .log_err();
4483 }
4484 }));
4485 None
4486 }
4487
4488 fn refresh_inline_completion(
4489 &mut self,
4490 debounce: bool,
4491 cx: &mut ViewContext<Self>,
4492 ) -> Option<()> {
4493 let provider = self.inline_completion_provider()?;
4494 let cursor = self.selections.newest_anchor().head();
4495 let (buffer, cursor_buffer_position) =
4496 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4497 if !self.show_inline_completions
4498 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4499 {
4500 self.discard_inline_completion(false, cx);
4501 return None;
4502 }
4503
4504 self.update_visible_inline_completion(cx);
4505 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4506 Some(())
4507 }
4508
4509 fn cycle_inline_completion(
4510 &mut self,
4511 direction: Direction,
4512 cx: &mut ViewContext<Self>,
4513 ) -> Option<()> {
4514 let provider = self.inline_completion_provider()?;
4515 let cursor = self.selections.newest_anchor().head();
4516 let (buffer, cursor_buffer_position) =
4517 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4518 if !self.show_inline_completions
4519 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4520 {
4521 return None;
4522 }
4523
4524 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4525 self.update_visible_inline_completion(cx);
4526
4527 Some(())
4528 }
4529
4530 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4531 if !self.has_active_inline_completion(cx) {
4532 self.refresh_inline_completion(false, cx);
4533 return;
4534 }
4535
4536 self.update_visible_inline_completion(cx);
4537 }
4538
4539 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4540 self.show_cursor_names(cx);
4541 }
4542
4543 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4544 self.show_cursor_names = true;
4545 cx.notify();
4546 cx.spawn(|this, mut cx| async move {
4547 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4548 this.update(&mut cx, |this, cx| {
4549 this.show_cursor_names = false;
4550 cx.notify()
4551 })
4552 .ok()
4553 })
4554 .detach();
4555 }
4556
4557 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4558 if self.has_active_inline_completion(cx) {
4559 self.cycle_inline_completion(Direction::Next, cx);
4560 } else {
4561 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4562 if is_copilot_disabled {
4563 cx.propagate();
4564 }
4565 }
4566 }
4567
4568 pub fn previous_inline_completion(
4569 &mut self,
4570 _: &PreviousInlineCompletion,
4571 cx: &mut ViewContext<Self>,
4572 ) {
4573 if self.has_active_inline_completion(cx) {
4574 self.cycle_inline_completion(Direction::Prev, cx);
4575 } else {
4576 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4577 if is_copilot_disabled {
4578 cx.propagate();
4579 }
4580 }
4581 }
4582
4583 pub fn accept_inline_completion(
4584 &mut self,
4585 _: &AcceptInlineCompletion,
4586 cx: &mut ViewContext<Self>,
4587 ) {
4588 let Some(completion) = self.take_active_inline_completion(cx) else {
4589 return;
4590 };
4591 if let Some(provider) = self.inline_completion_provider() {
4592 provider.accept(cx);
4593 }
4594
4595 cx.emit(EditorEvent::InputHandled {
4596 utf16_range_to_replace: None,
4597 text: completion.text.to_string().into(),
4598 });
4599 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4600 self.refresh_inline_completion(true, cx);
4601 cx.notify();
4602 }
4603
4604 pub fn accept_partial_inline_completion(
4605 &mut self,
4606 _: &AcceptPartialInlineCompletion,
4607 cx: &mut ViewContext<Self>,
4608 ) {
4609 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4610 if let Some(completion) = self.take_active_inline_completion(cx) {
4611 let mut partial_completion = completion
4612 .text
4613 .chars()
4614 .by_ref()
4615 .take_while(|c| c.is_alphabetic())
4616 .collect::<String>();
4617 if partial_completion.is_empty() {
4618 partial_completion = completion
4619 .text
4620 .chars()
4621 .by_ref()
4622 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4623 .collect::<String>();
4624 }
4625
4626 cx.emit(EditorEvent::InputHandled {
4627 utf16_range_to_replace: None,
4628 text: partial_completion.clone().into(),
4629 });
4630 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4631 self.refresh_inline_completion(true, cx);
4632 cx.notify();
4633 }
4634 }
4635 }
4636
4637 fn discard_inline_completion(
4638 &mut self,
4639 should_report_inline_completion_event: bool,
4640 cx: &mut ViewContext<Self>,
4641 ) -> bool {
4642 if let Some(provider) = self.inline_completion_provider() {
4643 provider.discard(should_report_inline_completion_event, cx);
4644 }
4645
4646 self.take_active_inline_completion(cx).is_some()
4647 }
4648
4649 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4650 if let Some(completion) = self.active_inline_completion.as_ref() {
4651 let buffer = self.buffer.read(cx).read(cx);
4652 completion.position.is_valid(&buffer)
4653 } else {
4654 false
4655 }
4656 }
4657
4658 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4659 let completion = self.active_inline_completion.take()?;
4660 self.display_map.update(cx, |map, cx| {
4661 map.splice_inlays(vec![completion.id], Default::default(), cx);
4662 });
4663 let buffer = self.buffer.read(cx).read(cx);
4664
4665 if completion.position.is_valid(&buffer) {
4666 Some(completion)
4667 } else {
4668 None
4669 }
4670 }
4671
4672 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4673 let selection = self.selections.newest_anchor();
4674 let cursor = selection.head();
4675
4676 if self.context_menu.read().is_none()
4677 && self.completion_tasks.is_empty()
4678 && selection.start == selection.end
4679 {
4680 if let Some(provider) = self.inline_completion_provider() {
4681 if let Some((buffer, cursor_buffer_position)) =
4682 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4683 {
4684 if let Some(text) =
4685 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4686 {
4687 let text = Rope::from(text);
4688 let mut to_remove = Vec::new();
4689 if let Some(completion) = self.active_inline_completion.take() {
4690 to_remove.push(completion.id);
4691 }
4692
4693 let completion_inlay =
4694 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4695 self.active_inline_completion = Some(completion_inlay.clone());
4696 self.display_map.update(cx, move |map, cx| {
4697 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4698 });
4699 cx.notify();
4700 return;
4701 }
4702 }
4703 }
4704 }
4705
4706 self.discard_inline_completion(false, cx);
4707 }
4708
4709 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4710 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4711 }
4712
4713 fn render_code_actions_indicator(
4714 &self,
4715 _style: &EditorStyle,
4716 row: DisplayRow,
4717 is_active: bool,
4718 cx: &mut ViewContext<Self>,
4719 ) -> Option<IconButton> {
4720 if self.available_code_actions.is_some() {
4721 Some(
4722 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4723 .icon_size(IconSize::XSmall)
4724 .size(ui::ButtonSize::None)
4725 .icon_color(Color::Muted)
4726 .selected(is_active)
4727 .on_click(cx.listener(move |editor, _e, cx| {
4728 editor.focus(cx);
4729 editor.toggle_code_actions(
4730 &ToggleCodeActions {
4731 deployed_from_indicator: Some(row),
4732 },
4733 cx,
4734 );
4735 })),
4736 )
4737 } else {
4738 None
4739 }
4740 }
4741
4742 fn clear_tasks(&mut self) {
4743 self.tasks.clear()
4744 }
4745
4746 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4747 if let Some(_) = self.tasks.insert(key, value) {
4748 // This case should hopefully be rare, but just in case...
4749 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4750 }
4751 }
4752
4753 fn render_run_indicator(
4754 &self,
4755 _style: &EditorStyle,
4756 is_active: bool,
4757 row: DisplayRow,
4758 cx: &mut ViewContext<Self>,
4759 ) -> IconButton {
4760 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4761 .icon_size(IconSize::XSmall)
4762 .size(ui::ButtonSize::None)
4763 .icon_color(Color::Muted)
4764 .selected(is_active)
4765 .on_click(cx.listener(move |editor, _e, cx| {
4766 editor.focus(cx);
4767 editor.toggle_code_actions(
4768 &ToggleCodeActions {
4769 deployed_from_indicator: Some(row),
4770 },
4771 cx,
4772 );
4773 }))
4774 }
4775
4776 pub fn context_menu_visible(&self) -> bool {
4777 self.context_menu
4778 .read()
4779 .as_ref()
4780 .map_or(false, |menu| menu.visible())
4781 }
4782
4783 fn render_context_menu(
4784 &self,
4785 cursor_position: DisplayPoint,
4786 style: &EditorStyle,
4787 max_height: Pixels,
4788 cx: &mut ViewContext<Editor>,
4789 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4790 self.context_menu.read().as_ref().map(|menu| {
4791 menu.render(
4792 cursor_position,
4793 style,
4794 max_height,
4795 self.workspace.as_ref().map(|(w, _)| w.clone()),
4796 cx,
4797 )
4798 })
4799 }
4800
4801 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4802 cx.notify();
4803 self.completion_tasks.clear();
4804 let context_menu = self.context_menu.write().take();
4805 if context_menu.is_some() {
4806 self.update_visible_inline_completion(cx);
4807 }
4808 context_menu
4809 }
4810
4811 pub fn insert_snippet(
4812 &mut self,
4813 insertion_ranges: &[Range<usize>],
4814 snippet: Snippet,
4815 cx: &mut ViewContext<Self>,
4816 ) -> Result<()> {
4817 struct Tabstop<T> {
4818 is_end_tabstop: bool,
4819 ranges: Vec<Range<T>>,
4820 }
4821
4822 let tabstops = self.buffer.update(cx, |buffer, cx| {
4823 let snippet_text: Arc<str> = snippet.text.clone().into();
4824 buffer.edit(
4825 insertion_ranges
4826 .iter()
4827 .cloned()
4828 .map(|range| (range, snippet_text.clone())),
4829 Some(AutoindentMode::EachLine),
4830 cx,
4831 );
4832
4833 let snapshot = &*buffer.read(cx);
4834 let snippet = &snippet;
4835 snippet
4836 .tabstops
4837 .iter()
4838 .map(|tabstop| {
4839 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4840 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4841 });
4842 let mut tabstop_ranges = tabstop
4843 .iter()
4844 .flat_map(|tabstop_range| {
4845 let mut delta = 0_isize;
4846 insertion_ranges.iter().map(move |insertion_range| {
4847 let insertion_start = insertion_range.start as isize + delta;
4848 delta +=
4849 snippet.text.len() as isize - insertion_range.len() as isize;
4850
4851 let start = ((insertion_start + tabstop_range.start) as usize)
4852 .min(snapshot.len());
4853 let end = ((insertion_start + tabstop_range.end) as usize)
4854 .min(snapshot.len());
4855 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4856 })
4857 })
4858 .collect::<Vec<_>>();
4859 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4860
4861 Tabstop {
4862 is_end_tabstop,
4863 ranges: tabstop_ranges,
4864 }
4865 })
4866 .collect::<Vec<_>>()
4867 });
4868
4869 if let Some(tabstop) = tabstops.first() {
4870 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4871 s.select_ranges(tabstop.ranges.iter().cloned());
4872 });
4873
4874 // If we're already at the last tabstop and it's at the end of the snippet,
4875 // we're done, we don't need to keep the state around.
4876 if !tabstop.is_end_tabstop {
4877 let ranges = tabstops
4878 .into_iter()
4879 .map(|tabstop| tabstop.ranges)
4880 .collect::<Vec<_>>();
4881 self.snippet_stack.push(SnippetState {
4882 active_index: 0,
4883 ranges,
4884 });
4885 }
4886
4887 // Check whether the just-entered snippet ends with an auto-closable bracket.
4888 if self.autoclose_regions.is_empty() {
4889 let snapshot = self.buffer.read(cx).snapshot(cx);
4890 for selection in &mut self.selections.all::<Point>(cx) {
4891 let selection_head = selection.head();
4892 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4893 continue;
4894 };
4895
4896 let mut bracket_pair = None;
4897 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4898 let prev_chars = snapshot
4899 .reversed_chars_at(selection_head)
4900 .collect::<String>();
4901 for (pair, enabled) in scope.brackets() {
4902 if enabled
4903 && pair.close
4904 && prev_chars.starts_with(pair.start.as_str())
4905 && next_chars.starts_with(pair.end.as_str())
4906 {
4907 bracket_pair = Some(pair.clone());
4908 break;
4909 }
4910 }
4911 if let Some(pair) = bracket_pair {
4912 let start = snapshot.anchor_after(selection_head);
4913 let end = snapshot.anchor_after(selection_head);
4914 self.autoclose_regions.push(AutocloseRegion {
4915 selection_id: selection.id,
4916 range: start..end,
4917 pair,
4918 });
4919 }
4920 }
4921 }
4922 }
4923 Ok(())
4924 }
4925
4926 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4927 self.move_to_snippet_tabstop(Bias::Right, cx)
4928 }
4929
4930 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4931 self.move_to_snippet_tabstop(Bias::Left, cx)
4932 }
4933
4934 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4935 if let Some(mut snippet) = self.snippet_stack.pop() {
4936 match bias {
4937 Bias::Left => {
4938 if snippet.active_index > 0 {
4939 snippet.active_index -= 1;
4940 } else {
4941 self.snippet_stack.push(snippet);
4942 return false;
4943 }
4944 }
4945 Bias::Right => {
4946 if snippet.active_index + 1 < snippet.ranges.len() {
4947 snippet.active_index += 1;
4948 } else {
4949 self.snippet_stack.push(snippet);
4950 return false;
4951 }
4952 }
4953 }
4954 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4955 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4956 s.select_anchor_ranges(current_ranges.iter().cloned())
4957 });
4958 // If snippet state is not at the last tabstop, push it back on the stack
4959 if snippet.active_index + 1 < snippet.ranges.len() {
4960 self.snippet_stack.push(snippet);
4961 }
4962 return true;
4963 }
4964 }
4965
4966 false
4967 }
4968
4969 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4970 self.transact(cx, |this, cx| {
4971 this.select_all(&SelectAll, cx);
4972 this.insert("", cx);
4973 });
4974 }
4975
4976 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4977 self.transact(cx, |this, cx| {
4978 this.select_autoclose_pair(cx);
4979 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4980 if !this.selections.line_mode {
4981 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4982 for selection in &mut selections {
4983 if selection.is_empty() {
4984 let old_head = selection.head();
4985 let mut new_head =
4986 movement::left(&display_map, old_head.to_display_point(&display_map))
4987 .to_point(&display_map);
4988 if let Some((buffer, line_buffer_range)) = display_map
4989 .buffer_snapshot
4990 .buffer_line_for_row(MultiBufferRow(old_head.row))
4991 {
4992 let indent_size =
4993 buffer.indent_size_for_line(line_buffer_range.start.row);
4994 let indent_len = match indent_size.kind {
4995 IndentKind::Space => {
4996 buffer.settings_at(line_buffer_range.start, cx).tab_size
4997 }
4998 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4999 };
5000 if old_head.column <= indent_size.len && old_head.column > 0 {
5001 let indent_len = indent_len.get();
5002 new_head = cmp::min(
5003 new_head,
5004 MultiBufferPoint::new(
5005 old_head.row,
5006 ((old_head.column - 1) / indent_len) * indent_len,
5007 ),
5008 );
5009 }
5010 }
5011
5012 selection.set_head(new_head, SelectionGoal::None);
5013 }
5014 }
5015 }
5016
5017 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5018 this.insert("", cx);
5019 this.refresh_inline_completion(true, cx);
5020 });
5021 }
5022
5023 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5024 self.transact(cx, |this, cx| {
5025 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5026 let line_mode = s.line_mode;
5027 s.move_with(|map, selection| {
5028 if selection.is_empty() && !line_mode {
5029 let cursor = movement::right(map, selection.head());
5030 selection.end = cursor;
5031 selection.reversed = true;
5032 selection.goal = SelectionGoal::None;
5033 }
5034 })
5035 });
5036 this.insert("", cx);
5037 this.refresh_inline_completion(true, cx);
5038 });
5039 }
5040
5041 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5042 if self.move_to_prev_snippet_tabstop(cx) {
5043 return;
5044 }
5045
5046 self.outdent(&Outdent, cx);
5047 }
5048
5049 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5050 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5051 return;
5052 }
5053
5054 let mut selections = self.selections.all_adjusted(cx);
5055 let buffer = self.buffer.read(cx);
5056 let snapshot = buffer.snapshot(cx);
5057 let rows_iter = selections.iter().map(|s| s.head().row);
5058 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5059
5060 let mut edits = Vec::new();
5061 let mut prev_edited_row = 0;
5062 let mut row_delta = 0;
5063 for selection in &mut selections {
5064 if selection.start.row != prev_edited_row {
5065 row_delta = 0;
5066 }
5067 prev_edited_row = selection.end.row;
5068
5069 // If the selection is non-empty, then increase the indentation of the selected lines.
5070 if !selection.is_empty() {
5071 row_delta =
5072 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5073 continue;
5074 }
5075
5076 // If the selection is empty and the cursor is in the leading whitespace before the
5077 // suggested indentation, then auto-indent the line.
5078 let cursor = selection.head();
5079 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5080 if let Some(suggested_indent) =
5081 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5082 {
5083 if cursor.column < suggested_indent.len
5084 && cursor.column <= current_indent.len
5085 && current_indent.len <= suggested_indent.len
5086 {
5087 selection.start = Point::new(cursor.row, suggested_indent.len);
5088 selection.end = selection.start;
5089 if row_delta == 0 {
5090 edits.extend(Buffer::edit_for_indent_size_adjustment(
5091 cursor.row,
5092 current_indent,
5093 suggested_indent,
5094 ));
5095 row_delta = suggested_indent.len - current_indent.len;
5096 }
5097 continue;
5098 }
5099 }
5100
5101 // Otherwise, insert a hard or soft tab.
5102 let settings = buffer.settings_at(cursor, cx);
5103 let tab_size = if settings.hard_tabs {
5104 IndentSize::tab()
5105 } else {
5106 let tab_size = settings.tab_size.get();
5107 let char_column = snapshot
5108 .text_for_range(Point::new(cursor.row, 0)..cursor)
5109 .flat_map(str::chars)
5110 .count()
5111 + row_delta as usize;
5112 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5113 IndentSize::spaces(chars_to_next_tab_stop)
5114 };
5115 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5116 selection.end = selection.start;
5117 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5118 row_delta += tab_size.len;
5119 }
5120
5121 self.transact(cx, |this, cx| {
5122 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5123 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5124 this.refresh_inline_completion(true, cx);
5125 });
5126 }
5127
5128 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5129 if self.read_only(cx) {
5130 return;
5131 }
5132 let mut selections = self.selections.all::<Point>(cx);
5133 let mut prev_edited_row = 0;
5134 let mut row_delta = 0;
5135 let mut edits = Vec::new();
5136 let buffer = self.buffer.read(cx);
5137 let snapshot = buffer.snapshot(cx);
5138 for selection in &mut selections {
5139 if selection.start.row != prev_edited_row {
5140 row_delta = 0;
5141 }
5142 prev_edited_row = selection.end.row;
5143
5144 row_delta =
5145 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5146 }
5147
5148 self.transact(cx, |this, cx| {
5149 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5150 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5151 });
5152 }
5153
5154 fn indent_selection(
5155 buffer: &MultiBuffer,
5156 snapshot: &MultiBufferSnapshot,
5157 selection: &mut Selection<Point>,
5158 edits: &mut Vec<(Range<Point>, String)>,
5159 delta_for_start_row: u32,
5160 cx: &AppContext,
5161 ) -> u32 {
5162 let settings = buffer.settings_at(selection.start, cx);
5163 let tab_size = settings.tab_size.get();
5164 let indent_kind = if settings.hard_tabs {
5165 IndentKind::Tab
5166 } else {
5167 IndentKind::Space
5168 };
5169 let mut start_row = selection.start.row;
5170 let mut end_row = selection.end.row + 1;
5171
5172 // If a selection ends at the beginning of a line, don't indent
5173 // that last line.
5174 if selection.end.column == 0 && selection.end.row > selection.start.row {
5175 end_row -= 1;
5176 }
5177
5178 // Avoid re-indenting a row that has already been indented by a
5179 // previous selection, but still update this selection's column
5180 // to reflect that indentation.
5181 if delta_for_start_row > 0 {
5182 start_row += 1;
5183 selection.start.column += delta_for_start_row;
5184 if selection.end.row == selection.start.row {
5185 selection.end.column += delta_for_start_row;
5186 }
5187 }
5188
5189 let mut delta_for_end_row = 0;
5190 let has_multiple_rows = start_row + 1 != end_row;
5191 for row in start_row..end_row {
5192 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5193 let indent_delta = match (current_indent.kind, indent_kind) {
5194 (IndentKind::Space, IndentKind::Space) => {
5195 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5196 IndentSize::spaces(columns_to_next_tab_stop)
5197 }
5198 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5199 (_, IndentKind::Tab) => IndentSize::tab(),
5200 };
5201
5202 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5203 0
5204 } else {
5205 selection.start.column
5206 };
5207 let row_start = Point::new(row, start);
5208 edits.push((
5209 row_start..row_start,
5210 indent_delta.chars().collect::<String>(),
5211 ));
5212
5213 // Update this selection's endpoints to reflect the indentation.
5214 if row == selection.start.row {
5215 selection.start.column += indent_delta.len;
5216 }
5217 if row == selection.end.row {
5218 selection.end.column += indent_delta.len;
5219 delta_for_end_row = indent_delta.len;
5220 }
5221 }
5222
5223 if selection.start.row == selection.end.row {
5224 delta_for_start_row + delta_for_end_row
5225 } else {
5226 delta_for_end_row
5227 }
5228 }
5229
5230 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5231 if self.read_only(cx) {
5232 return;
5233 }
5234 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5235 let selections = self.selections.all::<Point>(cx);
5236 let mut deletion_ranges = Vec::new();
5237 let mut last_outdent = None;
5238 {
5239 let buffer = self.buffer.read(cx);
5240 let snapshot = buffer.snapshot(cx);
5241 for selection in &selections {
5242 let settings = buffer.settings_at(selection.start, cx);
5243 let tab_size = settings.tab_size.get();
5244 let mut rows = selection.spanned_rows(false, &display_map);
5245
5246 // Avoid re-outdenting a row that has already been outdented by a
5247 // previous selection.
5248 if let Some(last_row) = last_outdent {
5249 if last_row == rows.start {
5250 rows.start = rows.start.next_row();
5251 }
5252 }
5253 let has_multiple_rows = rows.len() > 1;
5254 for row in rows.iter_rows() {
5255 let indent_size = snapshot.indent_size_for_line(row);
5256 if indent_size.len > 0 {
5257 let deletion_len = match indent_size.kind {
5258 IndentKind::Space => {
5259 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5260 if columns_to_prev_tab_stop == 0 {
5261 tab_size
5262 } else {
5263 columns_to_prev_tab_stop
5264 }
5265 }
5266 IndentKind::Tab => 1,
5267 };
5268 let start = if has_multiple_rows
5269 || deletion_len > selection.start.column
5270 || indent_size.len < selection.start.column
5271 {
5272 0
5273 } else {
5274 selection.start.column - deletion_len
5275 };
5276 deletion_ranges.push(
5277 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5278 );
5279 last_outdent = Some(row);
5280 }
5281 }
5282 }
5283 }
5284
5285 self.transact(cx, |this, cx| {
5286 this.buffer.update(cx, |buffer, cx| {
5287 let empty_str: Arc<str> = "".into();
5288 buffer.edit(
5289 deletion_ranges
5290 .into_iter()
5291 .map(|range| (range, empty_str.clone())),
5292 None,
5293 cx,
5294 );
5295 });
5296 let selections = this.selections.all::<usize>(cx);
5297 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5298 });
5299 }
5300
5301 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5302 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5303 let selections = self.selections.all::<Point>(cx);
5304
5305 let mut new_cursors = Vec::new();
5306 let mut edit_ranges = Vec::new();
5307 let mut selections = selections.iter().peekable();
5308 while let Some(selection) = selections.next() {
5309 let mut rows = selection.spanned_rows(false, &display_map);
5310 let goal_display_column = selection.head().to_display_point(&display_map).column();
5311
5312 // Accumulate contiguous regions of rows that we want to delete.
5313 while let Some(next_selection) = selections.peek() {
5314 let next_rows = next_selection.spanned_rows(false, &display_map);
5315 if next_rows.start <= rows.end {
5316 rows.end = next_rows.end;
5317 selections.next().unwrap();
5318 } else {
5319 break;
5320 }
5321 }
5322
5323 let buffer = &display_map.buffer_snapshot;
5324 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5325 let edit_end;
5326 let cursor_buffer_row;
5327 if buffer.max_point().row >= rows.end.0 {
5328 // If there's a line after the range, delete the \n from the end of the row range
5329 // and position the cursor on the next line.
5330 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5331 cursor_buffer_row = rows.end;
5332 } else {
5333 // If there isn't a line after the range, delete the \n from the line before the
5334 // start of the row range and position the cursor there.
5335 edit_start = edit_start.saturating_sub(1);
5336 edit_end = buffer.len();
5337 cursor_buffer_row = rows.start.previous_row();
5338 }
5339
5340 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5341 *cursor.column_mut() =
5342 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5343
5344 new_cursors.push((
5345 selection.id,
5346 buffer.anchor_after(cursor.to_point(&display_map)),
5347 ));
5348 edit_ranges.push(edit_start..edit_end);
5349 }
5350
5351 self.transact(cx, |this, cx| {
5352 let buffer = this.buffer.update(cx, |buffer, cx| {
5353 let empty_str: Arc<str> = "".into();
5354 buffer.edit(
5355 edit_ranges
5356 .into_iter()
5357 .map(|range| (range, empty_str.clone())),
5358 None,
5359 cx,
5360 );
5361 buffer.snapshot(cx)
5362 });
5363 let new_selections = new_cursors
5364 .into_iter()
5365 .map(|(id, cursor)| {
5366 let cursor = cursor.to_point(&buffer);
5367 Selection {
5368 id,
5369 start: cursor,
5370 end: cursor,
5371 reversed: false,
5372 goal: SelectionGoal::None,
5373 }
5374 })
5375 .collect();
5376
5377 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5378 s.select(new_selections);
5379 });
5380 });
5381 }
5382
5383 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5384 if self.read_only(cx) {
5385 return;
5386 }
5387 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5388 for selection in self.selections.all::<Point>(cx) {
5389 let start = MultiBufferRow(selection.start.row);
5390 let end = if selection.start.row == selection.end.row {
5391 MultiBufferRow(selection.start.row + 1)
5392 } else {
5393 MultiBufferRow(selection.end.row)
5394 };
5395
5396 if let Some(last_row_range) = row_ranges.last_mut() {
5397 if start <= last_row_range.end {
5398 last_row_range.end = end;
5399 continue;
5400 }
5401 }
5402 row_ranges.push(start..end);
5403 }
5404
5405 let snapshot = self.buffer.read(cx).snapshot(cx);
5406 let mut cursor_positions = Vec::new();
5407 for row_range in &row_ranges {
5408 let anchor = snapshot.anchor_before(Point::new(
5409 row_range.end.previous_row().0,
5410 snapshot.line_len(row_range.end.previous_row()),
5411 ));
5412 cursor_positions.push(anchor..anchor);
5413 }
5414
5415 self.transact(cx, |this, cx| {
5416 for row_range in row_ranges.into_iter().rev() {
5417 for row in row_range.iter_rows().rev() {
5418 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5419 let next_line_row = row.next_row();
5420 let indent = snapshot.indent_size_for_line(next_line_row);
5421 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5422
5423 let replace = if snapshot.line_len(next_line_row) > indent.len {
5424 " "
5425 } else {
5426 ""
5427 };
5428
5429 this.buffer.update(cx, |buffer, cx| {
5430 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5431 });
5432 }
5433 }
5434
5435 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5436 s.select_anchor_ranges(cursor_positions)
5437 });
5438 });
5439 }
5440
5441 pub fn sort_lines_case_sensitive(
5442 &mut self,
5443 _: &SortLinesCaseSensitive,
5444 cx: &mut ViewContext<Self>,
5445 ) {
5446 self.manipulate_lines(cx, |lines| lines.sort())
5447 }
5448
5449 pub fn sort_lines_case_insensitive(
5450 &mut self,
5451 _: &SortLinesCaseInsensitive,
5452 cx: &mut ViewContext<Self>,
5453 ) {
5454 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5455 }
5456
5457 pub fn unique_lines_case_insensitive(
5458 &mut self,
5459 _: &UniqueLinesCaseInsensitive,
5460 cx: &mut ViewContext<Self>,
5461 ) {
5462 self.manipulate_lines(cx, |lines| {
5463 let mut seen = HashSet::default();
5464 lines.retain(|line| seen.insert(line.to_lowercase()));
5465 })
5466 }
5467
5468 pub fn unique_lines_case_sensitive(
5469 &mut self,
5470 _: &UniqueLinesCaseSensitive,
5471 cx: &mut ViewContext<Self>,
5472 ) {
5473 self.manipulate_lines(cx, |lines| {
5474 let mut seen = HashSet::default();
5475 lines.retain(|line| seen.insert(*line));
5476 })
5477 }
5478
5479 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5480 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5481 if !revert_changes.is_empty() {
5482 self.transact(cx, |editor, cx| {
5483 editor.buffer().update(cx, |multi_buffer, cx| {
5484 for (buffer_id, changes) in revert_changes {
5485 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5486 buffer.update(cx, |buffer, cx| {
5487 buffer.edit(
5488 changes.into_iter().map(|(range, text)| {
5489 (range, text.to_string().map(Arc::<str>::from))
5490 }),
5491 None,
5492 cx,
5493 );
5494 });
5495 }
5496 }
5497 });
5498 editor.change_selections(None, cx, |selections| selections.refresh());
5499 });
5500 }
5501 }
5502
5503 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5504 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5505 let project_path = buffer.read(cx).project_path(cx)?;
5506 let project = self.project.as_ref()?.read(cx);
5507 let entry = project.entry_for_path(&project_path, cx)?;
5508 let abs_path = project.absolute_path(&project_path, cx)?;
5509 let parent = if entry.is_symlink {
5510 abs_path.canonicalize().ok()?
5511 } else {
5512 abs_path
5513 }
5514 .parent()?
5515 .to_path_buf();
5516 Some(parent)
5517 }) {
5518 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5519 }
5520 }
5521
5522 fn gather_revert_changes(
5523 &mut self,
5524 selections: &[Selection<Anchor>],
5525 cx: &mut ViewContext<'_, Editor>,
5526 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5527 let mut revert_changes = HashMap::default();
5528 self.buffer.update(cx, |multi_buffer, cx| {
5529 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5530 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5531 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5532 }
5533 });
5534 revert_changes
5535 }
5536
5537 fn prepare_revert_change(
5538 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5539 multi_buffer: &MultiBuffer,
5540 hunk: &DiffHunk<MultiBufferRow>,
5541 cx: &mut AppContext,
5542 ) -> Option<()> {
5543 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5544 let buffer = buffer.read(cx);
5545 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5546 let buffer_snapshot = buffer.snapshot();
5547 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5548 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5549 probe
5550 .0
5551 .start
5552 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5553 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5554 }) {
5555 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5556 Some(())
5557 } else {
5558 None
5559 }
5560 }
5561
5562 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5563 self.manipulate_lines(cx, |lines| lines.reverse())
5564 }
5565
5566 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5567 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5568 }
5569
5570 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5571 where
5572 Fn: FnMut(&mut Vec<&str>),
5573 {
5574 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5575 let buffer = self.buffer.read(cx).snapshot(cx);
5576
5577 let mut edits = Vec::new();
5578
5579 let selections = self.selections.all::<Point>(cx);
5580 let mut selections = selections.iter().peekable();
5581 let mut contiguous_row_selections = Vec::new();
5582 let mut new_selections = Vec::new();
5583 let mut added_lines = 0;
5584 let mut removed_lines = 0;
5585
5586 while let Some(selection) = selections.next() {
5587 let (start_row, end_row) = consume_contiguous_rows(
5588 &mut contiguous_row_selections,
5589 selection,
5590 &display_map,
5591 &mut selections,
5592 );
5593
5594 let start_point = Point::new(start_row.0, 0);
5595 let end_point = Point::new(
5596 end_row.previous_row().0,
5597 buffer.line_len(end_row.previous_row()),
5598 );
5599 let text = buffer
5600 .text_for_range(start_point..end_point)
5601 .collect::<String>();
5602
5603 let mut lines = text.split('\n').collect_vec();
5604
5605 let lines_before = lines.len();
5606 callback(&mut lines);
5607 let lines_after = lines.len();
5608
5609 edits.push((start_point..end_point, lines.join("\n")));
5610
5611 // Selections must change based on added and removed line count
5612 let start_row =
5613 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5614 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5615 new_selections.push(Selection {
5616 id: selection.id,
5617 start: start_row,
5618 end: end_row,
5619 goal: SelectionGoal::None,
5620 reversed: selection.reversed,
5621 });
5622
5623 if lines_after > lines_before {
5624 added_lines += lines_after - lines_before;
5625 } else if lines_before > lines_after {
5626 removed_lines += lines_before - lines_after;
5627 }
5628 }
5629
5630 self.transact(cx, |this, cx| {
5631 let buffer = this.buffer.update(cx, |buffer, cx| {
5632 buffer.edit(edits, None, cx);
5633 buffer.snapshot(cx)
5634 });
5635
5636 // Recalculate offsets on newly edited buffer
5637 let new_selections = new_selections
5638 .iter()
5639 .map(|s| {
5640 let start_point = Point::new(s.start.0, 0);
5641 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5642 Selection {
5643 id: s.id,
5644 start: buffer.point_to_offset(start_point),
5645 end: buffer.point_to_offset(end_point),
5646 goal: s.goal,
5647 reversed: s.reversed,
5648 }
5649 })
5650 .collect();
5651
5652 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5653 s.select(new_selections);
5654 });
5655
5656 this.request_autoscroll(Autoscroll::fit(), cx);
5657 });
5658 }
5659
5660 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5661 self.manipulate_text(cx, |text| text.to_uppercase())
5662 }
5663
5664 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5665 self.manipulate_text(cx, |text| text.to_lowercase())
5666 }
5667
5668 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5669 self.manipulate_text(cx, |text| {
5670 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5671 // https://github.com/rutrum/convert-case/issues/16
5672 text.split('\n')
5673 .map(|line| line.to_case(Case::Title))
5674 .join("\n")
5675 })
5676 }
5677
5678 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5679 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5680 }
5681
5682 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5683 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5684 }
5685
5686 pub fn convert_to_upper_camel_case(
5687 &mut self,
5688 _: &ConvertToUpperCamelCase,
5689 cx: &mut ViewContext<Self>,
5690 ) {
5691 self.manipulate_text(cx, |text| {
5692 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5693 // https://github.com/rutrum/convert-case/issues/16
5694 text.split('\n')
5695 .map(|line| line.to_case(Case::UpperCamel))
5696 .join("\n")
5697 })
5698 }
5699
5700 pub fn convert_to_lower_camel_case(
5701 &mut self,
5702 _: &ConvertToLowerCamelCase,
5703 cx: &mut ViewContext<Self>,
5704 ) {
5705 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5706 }
5707
5708 pub fn convert_to_opposite_case(
5709 &mut self,
5710 _: &ConvertToOppositeCase,
5711 cx: &mut ViewContext<Self>,
5712 ) {
5713 self.manipulate_text(cx, |text| {
5714 text.chars()
5715 .fold(String::with_capacity(text.len()), |mut t, c| {
5716 if c.is_uppercase() {
5717 t.extend(c.to_lowercase());
5718 } else {
5719 t.extend(c.to_uppercase());
5720 }
5721 t
5722 })
5723 })
5724 }
5725
5726 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5727 where
5728 Fn: FnMut(&str) -> String,
5729 {
5730 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5731 let buffer = self.buffer.read(cx).snapshot(cx);
5732
5733 let mut new_selections = Vec::new();
5734 let mut edits = Vec::new();
5735 let mut selection_adjustment = 0i32;
5736
5737 for selection in self.selections.all::<usize>(cx) {
5738 let selection_is_empty = selection.is_empty();
5739
5740 let (start, end) = if selection_is_empty {
5741 let word_range = movement::surrounding_word(
5742 &display_map,
5743 selection.start.to_display_point(&display_map),
5744 );
5745 let start = word_range.start.to_offset(&display_map, Bias::Left);
5746 let end = word_range.end.to_offset(&display_map, Bias::Left);
5747 (start, end)
5748 } else {
5749 (selection.start, selection.end)
5750 };
5751
5752 let text = buffer.text_for_range(start..end).collect::<String>();
5753 let old_length = text.len() as i32;
5754 let text = callback(&text);
5755
5756 new_selections.push(Selection {
5757 start: (start as i32 - selection_adjustment) as usize,
5758 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5759 goal: SelectionGoal::None,
5760 ..selection
5761 });
5762
5763 selection_adjustment += old_length - text.len() as i32;
5764
5765 edits.push((start..end, text));
5766 }
5767
5768 self.transact(cx, |this, cx| {
5769 this.buffer.update(cx, |buffer, cx| {
5770 buffer.edit(edits, None, cx);
5771 });
5772
5773 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5774 s.select(new_selections);
5775 });
5776
5777 this.request_autoscroll(Autoscroll::fit(), cx);
5778 });
5779 }
5780
5781 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5782 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5783 let buffer = &display_map.buffer_snapshot;
5784 let selections = self.selections.all::<Point>(cx);
5785
5786 let mut edits = Vec::new();
5787 let mut selections_iter = selections.iter().peekable();
5788 while let Some(selection) = selections_iter.next() {
5789 // Avoid duplicating the same lines twice.
5790 let mut rows = selection.spanned_rows(false, &display_map);
5791
5792 while let Some(next_selection) = selections_iter.peek() {
5793 let next_rows = next_selection.spanned_rows(false, &display_map);
5794 if next_rows.start < rows.end {
5795 rows.end = next_rows.end;
5796 selections_iter.next().unwrap();
5797 } else {
5798 break;
5799 }
5800 }
5801
5802 // Copy the text from the selected row region and splice it either at the start
5803 // or end of the region.
5804 let start = Point::new(rows.start.0, 0);
5805 let end = Point::new(
5806 rows.end.previous_row().0,
5807 buffer.line_len(rows.end.previous_row()),
5808 );
5809 let text = buffer
5810 .text_for_range(start..end)
5811 .chain(Some("\n"))
5812 .collect::<String>();
5813 let insert_location = if upwards {
5814 Point::new(rows.end.0, 0)
5815 } else {
5816 start
5817 };
5818 edits.push((insert_location..insert_location, text));
5819 }
5820
5821 self.transact(cx, |this, cx| {
5822 this.buffer.update(cx, |buffer, cx| {
5823 buffer.edit(edits, None, cx);
5824 });
5825
5826 this.request_autoscroll(Autoscroll::fit(), cx);
5827 });
5828 }
5829
5830 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5831 self.duplicate_line(true, cx);
5832 }
5833
5834 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5835 self.duplicate_line(false, cx);
5836 }
5837
5838 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5839 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5840 let buffer = self.buffer.read(cx).snapshot(cx);
5841
5842 let mut edits = Vec::new();
5843 let mut unfold_ranges = Vec::new();
5844 let mut refold_ranges = Vec::new();
5845
5846 let selections = self.selections.all::<Point>(cx);
5847 let mut selections = selections.iter().peekable();
5848 let mut contiguous_row_selections = Vec::new();
5849 let mut new_selections = Vec::new();
5850
5851 while let Some(selection) = selections.next() {
5852 // Find all the selections that span a contiguous row range
5853 let (start_row, end_row) = consume_contiguous_rows(
5854 &mut contiguous_row_selections,
5855 selection,
5856 &display_map,
5857 &mut selections,
5858 );
5859
5860 // Move the text spanned by the row range to be before the line preceding the row range
5861 if start_row.0 > 0 {
5862 let range_to_move = Point::new(
5863 start_row.previous_row().0,
5864 buffer.line_len(start_row.previous_row()),
5865 )
5866 ..Point::new(
5867 end_row.previous_row().0,
5868 buffer.line_len(end_row.previous_row()),
5869 );
5870 let insertion_point = display_map
5871 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5872 .0;
5873
5874 // Don't move lines across excerpts
5875 if buffer
5876 .excerpt_boundaries_in_range((
5877 Bound::Excluded(insertion_point),
5878 Bound::Included(range_to_move.end),
5879 ))
5880 .next()
5881 .is_none()
5882 {
5883 let text = buffer
5884 .text_for_range(range_to_move.clone())
5885 .flat_map(|s| s.chars())
5886 .skip(1)
5887 .chain(['\n'])
5888 .collect::<String>();
5889
5890 edits.push((
5891 buffer.anchor_after(range_to_move.start)
5892 ..buffer.anchor_before(range_to_move.end),
5893 String::new(),
5894 ));
5895 let insertion_anchor = buffer.anchor_after(insertion_point);
5896 edits.push((insertion_anchor..insertion_anchor, text));
5897
5898 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5899
5900 // Move selections up
5901 new_selections.extend(contiguous_row_selections.drain(..).map(
5902 |mut selection| {
5903 selection.start.row -= row_delta;
5904 selection.end.row -= row_delta;
5905 selection
5906 },
5907 ));
5908
5909 // Move folds up
5910 unfold_ranges.push(range_to_move.clone());
5911 for fold in display_map.folds_in_range(
5912 buffer.anchor_before(range_to_move.start)
5913 ..buffer.anchor_after(range_to_move.end),
5914 ) {
5915 let mut start = fold.range.start.to_point(&buffer);
5916 let mut end = fold.range.end.to_point(&buffer);
5917 start.row -= row_delta;
5918 end.row -= row_delta;
5919 refold_ranges.push((start..end, fold.placeholder.clone()));
5920 }
5921 }
5922 }
5923
5924 // If we didn't move line(s), preserve the existing selections
5925 new_selections.append(&mut contiguous_row_selections);
5926 }
5927
5928 self.transact(cx, |this, cx| {
5929 this.unfold_ranges(unfold_ranges, true, true, cx);
5930 this.buffer.update(cx, |buffer, cx| {
5931 for (range, text) in edits {
5932 buffer.edit([(range, text)], None, cx);
5933 }
5934 });
5935 this.fold_ranges(refold_ranges, true, cx);
5936 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5937 s.select(new_selections);
5938 })
5939 });
5940 }
5941
5942 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5943 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5944 let buffer = self.buffer.read(cx).snapshot(cx);
5945
5946 let mut edits = Vec::new();
5947 let mut unfold_ranges = Vec::new();
5948 let mut refold_ranges = Vec::new();
5949
5950 let selections = self.selections.all::<Point>(cx);
5951 let mut selections = selections.iter().peekable();
5952 let mut contiguous_row_selections = Vec::new();
5953 let mut new_selections = Vec::new();
5954
5955 while let Some(selection) = selections.next() {
5956 // Find all the selections that span a contiguous row range
5957 let (start_row, end_row) = consume_contiguous_rows(
5958 &mut contiguous_row_selections,
5959 selection,
5960 &display_map,
5961 &mut selections,
5962 );
5963
5964 // Move the text spanned by the row range to be after the last line of the row range
5965 if end_row.0 <= buffer.max_point().row {
5966 let range_to_move =
5967 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5968 let insertion_point = display_map
5969 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5970 .0;
5971
5972 // Don't move lines across excerpt boundaries
5973 if buffer
5974 .excerpt_boundaries_in_range((
5975 Bound::Excluded(range_to_move.start),
5976 Bound::Included(insertion_point),
5977 ))
5978 .next()
5979 .is_none()
5980 {
5981 let mut text = String::from("\n");
5982 text.extend(buffer.text_for_range(range_to_move.clone()));
5983 text.pop(); // Drop trailing newline
5984 edits.push((
5985 buffer.anchor_after(range_to_move.start)
5986 ..buffer.anchor_before(range_to_move.end),
5987 String::new(),
5988 ));
5989 let insertion_anchor = buffer.anchor_after(insertion_point);
5990 edits.push((insertion_anchor..insertion_anchor, text));
5991
5992 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5993
5994 // Move selections down
5995 new_selections.extend(contiguous_row_selections.drain(..).map(
5996 |mut selection| {
5997 selection.start.row += row_delta;
5998 selection.end.row += row_delta;
5999 selection
6000 },
6001 ));
6002
6003 // Move folds down
6004 unfold_ranges.push(range_to_move.clone());
6005 for fold in display_map.folds_in_range(
6006 buffer.anchor_before(range_to_move.start)
6007 ..buffer.anchor_after(range_to_move.end),
6008 ) {
6009 let mut start = fold.range.start.to_point(&buffer);
6010 let mut end = fold.range.end.to_point(&buffer);
6011 start.row += row_delta;
6012 end.row += row_delta;
6013 refold_ranges.push((start..end, fold.placeholder.clone()));
6014 }
6015 }
6016 }
6017
6018 // If we didn't move line(s), preserve the existing selections
6019 new_selections.append(&mut contiguous_row_selections);
6020 }
6021
6022 self.transact(cx, |this, cx| {
6023 this.unfold_ranges(unfold_ranges, true, true, cx);
6024 this.buffer.update(cx, |buffer, cx| {
6025 for (range, text) in edits {
6026 buffer.edit([(range, text)], None, cx);
6027 }
6028 });
6029 this.fold_ranges(refold_ranges, true, cx);
6030 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6031 });
6032 }
6033
6034 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6035 let text_layout_details = &self.text_layout_details(cx);
6036 self.transact(cx, |this, cx| {
6037 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6038 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6039 let line_mode = s.line_mode;
6040 s.move_with(|display_map, selection| {
6041 if !selection.is_empty() || line_mode {
6042 return;
6043 }
6044
6045 let mut head = selection.head();
6046 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6047 if head.column() == display_map.line_len(head.row()) {
6048 transpose_offset = display_map
6049 .buffer_snapshot
6050 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6051 }
6052
6053 if transpose_offset == 0 {
6054 return;
6055 }
6056
6057 *head.column_mut() += 1;
6058 head = display_map.clip_point(head, Bias::Right);
6059 let goal = SelectionGoal::HorizontalPosition(
6060 display_map
6061 .x_for_display_point(head, &text_layout_details)
6062 .into(),
6063 );
6064 selection.collapse_to(head, goal);
6065
6066 let transpose_start = display_map
6067 .buffer_snapshot
6068 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6069 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6070 let transpose_end = display_map
6071 .buffer_snapshot
6072 .clip_offset(transpose_offset + 1, Bias::Right);
6073 if let Some(ch) =
6074 display_map.buffer_snapshot.chars_at(transpose_start).next()
6075 {
6076 edits.push((transpose_start..transpose_offset, String::new()));
6077 edits.push((transpose_end..transpose_end, ch.to_string()));
6078 }
6079 }
6080 });
6081 edits
6082 });
6083 this.buffer
6084 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6085 let selections = this.selections.all::<usize>(cx);
6086 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6087 s.select(selections);
6088 });
6089 });
6090 }
6091
6092 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6093 let mut text = String::new();
6094 let buffer = self.buffer.read(cx).snapshot(cx);
6095 let mut selections = self.selections.all::<Point>(cx);
6096 let mut clipboard_selections = Vec::with_capacity(selections.len());
6097 {
6098 let max_point = buffer.max_point();
6099 let mut is_first = true;
6100 for selection in &mut selections {
6101 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6102 if is_entire_line {
6103 selection.start = Point::new(selection.start.row, 0);
6104 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6105 selection.goal = SelectionGoal::None;
6106 }
6107 if is_first {
6108 is_first = false;
6109 } else {
6110 text += "\n";
6111 }
6112 let mut len = 0;
6113 for chunk in buffer.text_for_range(selection.start..selection.end) {
6114 text.push_str(chunk);
6115 len += chunk.len();
6116 }
6117 clipboard_selections.push(ClipboardSelection {
6118 len,
6119 is_entire_line,
6120 first_line_indent: buffer
6121 .indent_size_for_line(MultiBufferRow(selection.start.row))
6122 .len,
6123 });
6124 }
6125 }
6126
6127 self.transact(cx, |this, cx| {
6128 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6129 s.select(selections);
6130 });
6131 this.insert("", cx);
6132 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6133 });
6134 }
6135
6136 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6137 let selections = self.selections.all::<Point>(cx);
6138 let buffer = self.buffer.read(cx).read(cx);
6139 let mut text = String::new();
6140
6141 let mut clipboard_selections = Vec::with_capacity(selections.len());
6142 {
6143 let max_point = buffer.max_point();
6144 let mut is_first = true;
6145 for selection in selections.iter() {
6146 let mut start = selection.start;
6147 let mut end = selection.end;
6148 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6149 if is_entire_line {
6150 start = Point::new(start.row, 0);
6151 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6152 }
6153 if is_first {
6154 is_first = false;
6155 } else {
6156 text += "\n";
6157 }
6158 let mut len = 0;
6159 for chunk in buffer.text_for_range(start..end) {
6160 text.push_str(chunk);
6161 len += chunk.len();
6162 }
6163 clipboard_selections.push(ClipboardSelection {
6164 len,
6165 is_entire_line,
6166 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6167 });
6168 }
6169 }
6170
6171 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6172 }
6173
6174 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6175 if self.read_only(cx) {
6176 return;
6177 }
6178
6179 self.transact(cx, |this, cx| {
6180 if let Some(item) = cx.read_from_clipboard() {
6181 let clipboard_text = Cow::Borrowed(item.text());
6182 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6183 let old_selections = this.selections.all::<usize>(cx);
6184 let all_selections_were_entire_line =
6185 clipboard_selections.iter().all(|s| s.is_entire_line);
6186 let first_selection_indent_column =
6187 clipboard_selections.first().map(|s| s.first_line_indent);
6188 if clipboard_selections.len() != old_selections.len() {
6189 clipboard_selections.drain(..);
6190 }
6191
6192 this.buffer.update(cx, |buffer, cx| {
6193 let snapshot = buffer.read(cx);
6194 let mut start_offset = 0;
6195 let mut edits = Vec::new();
6196 let mut original_indent_columns = Vec::new();
6197 let line_mode = this.selections.line_mode;
6198 for (ix, selection) in old_selections.iter().enumerate() {
6199 let to_insert;
6200 let entire_line;
6201 let original_indent_column;
6202 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6203 let end_offset = start_offset + clipboard_selection.len;
6204 to_insert = &clipboard_text[start_offset..end_offset];
6205 entire_line = clipboard_selection.is_entire_line;
6206 start_offset = end_offset + 1;
6207 original_indent_column =
6208 Some(clipboard_selection.first_line_indent);
6209 } else {
6210 to_insert = clipboard_text.as_str();
6211 entire_line = all_selections_were_entire_line;
6212 original_indent_column = first_selection_indent_column
6213 }
6214
6215 // If the corresponding selection was empty when this slice of the
6216 // clipboard text was written, then the entire line containing the
6217 // selection was copied. If this selection is also currently empty,
6218 // then paste the line before the current line of the buffer.
6219 let range = if selection.is_empty() && !line_mode && entire_line {
6220 let column = selection.start.to_point(&snapshot).column as usize;
6221 let line_start = selection.start - column;
6222 line_start..line_start
6223 } else {
6224 selection.range()
6225 };
6226
6227 edits.push((range, to_insert));
6228 original_indent_columns.extend(original_indent_column);
6229 }
6230 drop(snapshot);
6231
6232 buffer.edit(
6233 edits,
6234 Some(AutoindentMode::Block {
6235 original_indent_columns,
6236 }),
6237 cx,
6238 );
6239 });
6240
6241 let selections = this.selections.all::<usize>(cx);
6242 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6243 } else {
6244 this.insert(&clipboard_text, cx);
6245 }
6246 }
6247 });
6248 }
6249
6250 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6251 if self.read_only(cx) {
6252 return;
6253 }
6254
6255 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6256 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6257 self.change_selections(None, cx, |s| {
6258 s.select_anchors(selections.to_vec());
6259 });
6260 }
6261 self.request_autoscroll(Autoscroll::fit(), cx);
6262 self.unmark_text(cx);
6263 self.refresh_inline_completion(true, cx);
6264 cx.emit(EditorEvent::Edited);
6265 cx.emit(EditorEvent::TransactionUndone {
6266 transaction_id: tx_id,
6267 });
6268 }
6269 }
6270
6271 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6272 if self.read_only(cx) {
6273 return;
6274 }
6275
6276 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6277 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6278 {
6279 self.change_selections(None, cx, |s| {
6280 s.select_anchors(selections.to_vec());
6281 });
6282 }
6283 self.request_autoscroll(Autoscroll::fit(), cx);
6284 self.unmark_text(cx);
6285 self.refresh_inline_completion(true, cx);
6286 cx.emit(EditorEvent::Edited);
6287 }
6288 }
6289
6290 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6291 self.buffer
6292 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6293 }
6294
6295 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6296 self.buffer
6297 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6298 }
6299
6300 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6301 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6302 let line_mode = s.line_mode;
6303 s.move_with(|map, selection| {
6304 let cursor = if selection.is_empty() && !line_mode {
6305 movement::left(map, selection.start)
6306 } else {
6307 selection.start
6308 };
6309 selection.collapse_to(cursor, SelectionGoal::None);
6310 });
6311 })
6312 }
6313
6314 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6315 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6316 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6317 })
6318 }
6319
6320 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6321 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6322 let line_mode = s.line_mode;
6323 s.move_with(|map, selection| {
6324 let cursor = if selection.is_empty() && !line_mode {
6325 movement::right(map, selection.end)
6326 } else {
6327 selection.end
6328 };
6329 selection.collapse_to(cursor, SelectionGoal::None)
6330 });
6331 })
6332 }
6333
6334 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6335 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6336 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6337 })
6338 }
6339
6340 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6341 if self.take_rename(true, cx).is_some() {
6342 return;
6343 }
6344
6345 if matches!(self.mode, EditorMode::SingleLine) {
6346 cx.propagate();
6347 return;
6348 }
6349
6350 let text_layout_details = &self.text_layout_details(cx);
6351
6352 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6353 let line_mode = s.line_mode;
6354 s.move_with(|map, selection| {
6355 if !selection.is_empty() && !line_mode {
6356 selection.goal = SelectionGoal::None;
6357 }
6358 let (cursor, goal) = movement::up(
6359 map,
6360 selection.start,
6361 selection.goal,
6362 false,
6363 &text_layout_details,
6364 );
6365 selection.collapse_to(cursor, goal);
6366 });
6367 })
6368 }
6369
6370 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6371 if self.take_rename(true, cx).is_some() {
6372 return;
6373 }
6374
6375 if matches!(self.mode, EditorMode::SingleLine) {
6376 cx.propagate();
6377 return;
6378 }
6379
6380 let text_layout_details = &self.text_layout_details(cx);
6381
6382 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6383 let line_mode = s.line_mode;
6384 s.move_with(|map, selection| {
6385 if !selection.is_empty() && !line_mode {
6386 selection.goal = SelectionGoal::None;
6387 }
6388 let (cursor, goal) = movement::up_by_rows(
6389 map,
6390 selection.start,
6391 action.lines,
6392 selection.goal,
6393 false,
6394 &text_layout_details,
6395 );
6396 selection.collapse_to(cursor, goal);
6397 });
6398 })
6399 }
6400
6401 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6402 if self.take_rename(true, cx).is_some() {
6403 return;
6404 }
6405
6406 if matches!(self.mode, EditorMode::SingleLine) {
6407 cx.propagate();
6408 return;
6409 }
6410
6411 let text_layout_details = &self.text_layout_details(cx);
6412
6413 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6414 let line_mode = s.line_mode;
6415 s.move_with(|map, selection| {
6416 if !selection.is_empty() && !line_mode {
6417 selection.goal = SelectionGoal::None;
6418 }
6419 let (cursor, goal) = movement::down_by_rows(
6420 map,
6421 selection.start,
6422 action.lines,
6423 selection.goal,
6424 false,
6425 &text_layout_details,
6426 );
6427 selection.collapse_to(cursor, goal);
6428 });
6429 })
6430 }
6431
6432 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6433 let text_layout_details = &self.text_layout_details(cx);
6434 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6435 s.move_heads_with(|map, head, goal| {
6436 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6437 })
6438 })
6439 }
6440
6441 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6442 let text_layout_details = &self.text_layout_details(cx);
6443 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6444 s.move_heads_with(|map, head, goal| {
6445 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6446 })
6447 })
6448 }
6449
6450 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6451 if self.take_rename(true, cx).is_some() {
6452 return;
6453 }
6454
6455 if matches!(self.mode, EditorMode::SingleLine) {
6456 cx.propagate();
6457 return;
6458 }
6459
6460 let row_count = if let Some(row_count) = self.visible_line_count() {
6461 row_count as u32 - 1
6462 } else {
6463 return;
6464 };
6465
6466 let autoscroll = if action.center_cursor {
6467 Autoscroll::center()
6468 } else {
6469 Autoscroll::fit()
6470 };
6471
6472 let text_layout_details = &self.text_layout_details(cx);
6473
6474 self.change_selections(Some(autoscroll), cx, |s| {
6475 let line_mode = s.line_mode;
6476 s.move_with(|map, selection| {
6477 if !selection.is_empty() && !line_mode {
6478 selection.goal = SelectionGoal::None;
6479 }
6480 let (cursor, goal) = movement::up_by_rows(
6481 map,
6482 selection.end,
6483 row_count,
6484 selection.goal,
6485 false,
6486 &text_layout_details,
6487 );
6488 selection.collapse_to(cursor, goal);
6489 });
6490 });
6491 }
6492
6493 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6494 let text_layout_details = &self.text_layout_details(cx);
6495 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6496 s.move_heads_with(|map, head, goal| {
6497 movement::up(map, head, goal, false, &text_layout_details)
6498 })
6499 })
6500 }
6501
6502 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6503 self.take_rename(true, cx);
6504
6505 if self.mode == EditorMode::SingleLine {
6506 cx.propagate();
6507 return;
6508 }
6509
6510 let text_layout_details = &self.text_layout_details(cx);
6511 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6512 let line_mode = s.line_mode;
6513 s.move_with(|map, selection| {
6514 if !selection.is_empty() && !line_mode {
6515 selection.goal = SelectionGoal::None;
6516 }
6517 let (cursor, goal) = movement::down(
6518 map,
6519 selection.end,
6520 selection.goal,
6521 false,
6522 &text_layout_details,
6523 );
6524 selection.collapse_to(cursor, goal);
6525 });
6526 });
6527 }
6528
6529 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6530 if self.take_rename(true, cx).is_some() {
6531 return;
6532 }
6533
6534 if self
6535 .context_menu
6536 .write()
6537 .as_mut()
6538 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6539 .unwrap_or(false)
6540 {
6541 return;
6542 }
6543
6544 if matches!(self.mode, EditorMode::SingleLine) {
6545 cx.propagate();
6546 return;
6547 }
6548
6549 let row_count = if let Some(row_count) = self.visible_line_count() {
6550 row_count as u32 - 1
6551 } else {
6552 return;
6553 };
6554
6555 let autoscroll = if action.center_cursor {
6556 Autoscroll::center()
6557 } else {
6558 Autoscroll::fit()
6559 };
6560
6561 let text_layout_details = &self.text_layout_details(cx);
6562 self.change_selections(Some(autoscroll), cx, |s| {
6563 let line_mode = s.line_mode;
6564 s.move_with(|map, selection| {
6565 if !selection.is_empty() && !line_mode {
6566 selection.goal = SelectionGoal::None;
6567 }
6568 let (cursor, goal) = movement::down_by_rows(
6569 map,
6570 selection.end,
6571 row_count,
6572 selection.goal,
6573 false,
6574 &text_layout_details,
6575 );
6576 selection.collapse_to(cursor, goal);
6577 });
6578 });
6579 }
6580
6581 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6582 let text_layout_details = &self.text_layout_details(cx);
6583 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6584 s.move_heads_with(|map, head, goal| {
6585 movement::down(map, head, goal, false, &text_layout_details)
6586 })
6587 });
6588 }
6589
6590 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6591 if let Some(context_menu) = self.context_menu.write().as_mut() {
6592 context_menu.select_first(self.project.as_ref(), cx);
6593 }
6594 }
6595
6596 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6597 if let Some(context_menu) = self.context_menu.write().as_mut() {
6598 context_menu.select_prev(self.project.as_ref(), cx);
6599 }
6600 }
6601
6602 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6603 if let Some(context_menu) = self.context_menu.write().as_mut() {
6604 context_menu.select_next(self.project.as_ref(), cx);
6605 }
6606 }
6607
6608 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6609 if let Some(context_menu) = self.context_menu.write().as_mut() {
6610 context_menu.select_last(self.project.as_ref(), cx);
6611 }
6612 }
6613
6614 pub fn move_to_previous_word_start(
6615 &mut self,
6616 _: &MoveToPreviousWordStart,
6617 cx: &mut ViewContext<Self>,
6618 ) {
6619 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6620 s.move_cursors_with(|map, head, _| {
6621 (
6622 movement::previous_word_start(map, head),
6623 SelectionGoal::None,
6624 )
6625 });
6626 })
6627 }
6628
6629 pub fn move_to_previous_subword_start(
6630 &mut self,
6631 _: &MoveToPreviousSubwordStart,
6632 cx: &mut ViewContext<Self>,
6633 ) {
6634 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6635 s.move_cursors_with(|map, head, _| {
6636 (
6637 movement::previous_subword_start(map, head),
6638 SelectionGoal::None,
6639 )
6640 });
6641 })
6642 }
6643
6644 pub fn select_to_previous_word_start(
6645 &mut self,
6646 _: &SelectToPreviousWordStart,
6647 cx: &mut ViewContext<Self>,
6648 ) {
6649 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6650 s.move_heads_with(|map, head, _| {
6651 (
6652 movement::previous_word_start(map, head),
6653 SelectionGoal::None,
6654 )
6655 });
6656 })
6657 }
6658
6659 pub fn select_to_previous_subword_start(
6660 &mut self,
6661 _: &SelectToPreviousSubwordStart,
6662 cx: &mut ViewContext<Self>,
6663 ) {
6664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6665 s.move_heads_with(|map, head, _| {
6666 (
6667 movement::previous_subword_start(map, head),
6668 SelectionGoal::None,
6669 )
6670 });
6671 })
6672 }
6673
6674 pub fn delete_to_previous_word_start(
6675 &mut self,
6676 _: &DeleteToPreviousWordStart,
6677 cx: &mut ViewContext<Self>,
6678 ) {
6679 self.transact(cx, |this, cx| {
6680 this.select_autoclose_pair(cx);
6681 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6682 let line_mode = s.line_mode;
6683 s.move_with(|map, selection| {
6684 if selection.is_empty() && !line_mode {
6685 let cursor = movement::previous_word_start(map, selection.head());
6686 selection.set_head(cursor, SelectionGoal::None);
6687 }
6688 });
6689 });
6690 this.insert("", cx);
6691 });
6692 }
6693
6694 pub fn delete_to_previous_subword_start(
6695 &mut self,
6696 _: &DeleteToPreviousSubwordStart,
6697 cx: &mut ViewContext<Self>,
6698 ) {
6699 self.transact(cx, |this, cx| {
6700 this.select_autoclose_pair(cx);
6701 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6702 let line_mode = s.line_mode;
6703 s.move_with(|map, selection| {
6704 if selection.is_empty() && !line_mode {
6705 let cursor = movement::previous_subword_start(map, selection.head());
6706 selection.set_head(cursor, SelectionGoal::None);
6707 }
6708 });
6709 });
6710 this.insert("", cx);
6711 });
6712 }
6713
6714 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6715 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6716 s.move_cursors_with(|map, head, _| {
6717 (movement::next_word_end(map, head), SelectionGoal::None)
6718 });
6719 })
6720 }
6721
6722 pub fn move_to_next_subword_end(
6723 &mut self,
6724 _: &MoveToNextSubwordEnd,
6725 cx: &mut ViewContext<Self>,
6726 ) {
6727 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6728 s.move_cursors_with(|map, head, _| {
6729 (movement::next_subword_end(map, head), SelectionGoal::None)
6730 });
6731 })
6732 }
6733
6734 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6735 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6736 s.move_heads_with(|map, head, _| {
6737 (movement::next_word_end(map, head), SelectionGoal::None)
6738 });
6739 })
6740 }
6741
6742 pub fn select_to_next_subword_end(
6743 &mut self,
6744 _: &SelectToNextSubwordEnd,
6745 cx: &mut ViewContext<Self>,
6746 ) {
6747 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6748 s.move_heads_with(|map, head, _| {
6749 (movement::next_subword_end(map, head), SelectionGoal::None)
6750 });
6751 })
6752 }
6753
6754 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6755 self.transact(cx, |this, cx| {
6756 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6757 let line_mode = s.line_mode;
6758 s.move_with(|map, selection| {
6759 if selection.is_empty() && !line_mode {
6760 let cursor = movement::next_word_end(map, selection.head());
6761 selection.set_head(cursor, SelectionGoal::None);
6762 }
6763 });
6764 });
6765 this.insert("", cx);
6766 });
6767 }
6768
6769 pub fn delete_to_next_subword_end(
6770 &mut self,
6771 _: &DeleteToNextSubwordEnd,
6772 cx: &mut ViewContext<Self>,
6773 ) {
6774 self.transact(cx, |this, cx| {
6775 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6776 s.move_with(|map, selection| {
6777 if selection.is_empty() {
6778 let cursor = movement::next_subword_end(map, selection.head());
6779 selection.set_head(cursor, SelectionGoal::None);
6780 }
6781 });
6782 });
6783 this.insert("", cx);
6784 });
6785 }
6786
6787 pub fn move_to_beginning_of_line(
6788 &mut self,
6789 action: &MoveToBeginningOfLine,
6790 cx: &mut ViewContext<Self>,
6791 ) {
6792 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6793 s.move_cursors_with(|map, head, _| {
6794 (
6795 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6796 SelectionGoal::None,
6797 )
6798 });
6799 })
6800 }
6801
6802 pub fn select_to_beginning_of_line(
6803 &mut self,
6804 action: &SelectToBeginningOfLine,
6805 cx: &mut ViewContext<Self>,
6806 ) {
6807 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6808 s.move_heads_with(|map, head, _| {
6809 (
6810 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6811 SelectionGoal::None,
6812 )
6813 });
6814 });
6815 }
6816
6817 pub fn delete_to_beginning_of_line(
6818 &mut self,
6819 _: &DeleteToBeginningOfLine,
6820 cx: &mut ViewContext<Self>,
6821 ) {
6822 self.transact(cx, |this, cx| {
6823 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6824 s.move_with(|_, selection| {
6825 selection.reversed = true;
6826 });
6827 });
6828
6829 this.select_to_beginning_of_line(
6830 &SelectToBeginningOfLine {
6831 stop_at_soft_wraps: false,
6832 },
6833 cx,
6834 );
6835 this.backspace(&Backspace, cx);
6836 });
6837 }
6838
6839 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6840 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6841 s.move_cursors_with(|map, head, _| {
6842 (
6843 movement::line_end(map, head, action.stop_at_soft_wraps),
6844 SelectionGoal::None,
6845 )
6846 });
6847 })
6848 }
6849
6850 pub fn select_to_end_of_line(
6851 &mut self,
6852 action: &SelectToEndOfLine,
6853 cx: &mut ViewContext<Self>,
6854 ) {
6855 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6856 s.move_heads_with(|map, head, _| {
6857 (
6858 movement::line_end(map, head, action.stop_at_soft_wraps),
6859 SelectionGoal::None,
6860 )
6861 });
6862 })
6863 }
6864
6865 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6866 self.transact(cx, |this, cx| {
6867 this.select_to_end_of_line(
6868 &SelectToEndOfLine {
6869 stop_at_soft_wraps: false,
6870 },
6871 cx,
6872 );
6873 this.delete(&Delete, cx);
6874 });
6875 }
6876
6877 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6878 self.transact(cx, |this, cx| {
6879 this.select_to_end_of_line(
6880 &SelectToEndOfLine {
6881 stop_at_soft_wraps: false,
6882 },
6883 cx,
6884 );
6885 this.cut(&Cut, cx);
6886 });
6887 }
6888
6889 pub fn move_to_start_of_paragraph(
6890 &mut self,
6891 _: &MoveToStartOfParagraph,
6892 cx: &mut ViewContext<Self>,
6893 ) {
6894 if matches!(self.mode, EditorMode::SingleLine) {
6895 cx.propagate();
6896 return;
6897 }
6898
6899 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6900 s.move_with(|map, selection| {
6901 selection.collapse_to(
6902 movement::start_of_paragraph(map, selection.head(), 1),
6903 SelectionGoal::None,
6904 )
6905 });
6906 })
6907 }
6908
6909 pub fn move_to_end_of_paragraph(
6910 &mut self,
6911 _: &MoveToEndOfParagraph,
6912 cx: &mut ViewContext<Self>,
6913 ) {
6914 if matches!(self.mode, EditorMode::SingleLine) {
6915 cx.propagate();
6916 return;
6917 }
6918
6919 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6920 s.move_with(|map, selection| {
6921 selection.collapse_to(
6922 movement::end_of_paragraph(map, selection.head(), 1),
6923 SelectionGoal::None,
6924 )
6925 });
6926 })
6927 }
6928
6929 pub fn select_to_start_of_paragraph(
6930 &mut self,
6931 _: &SelectToStartOfParagraph,
6932 cx: &mut ViewContext<Self>,
6933 ) {
6934 if matches!(self.mode, EditorMode::SingleLine) {
6935 cx.propagate();
6936 return;
6937 }
6938
6939 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6940 s.move_heads_with(|map, head, _| {
6941 (
6942 movement::start_of_paragraph(map, head, 1),
6943 SelectionGoal::None,
6944 )
6945 });
6946 })
6947 }
6948
6949 pub fn select_to_end_of_paragraph(
6950 &mut self,
6951 _: &SelectToEndOfParagraph,
6952 cx: &mut ViewContext<Self>,
6953 ) {
6954 if matches!(self.mode, EditorMode::SingleLine) {
6955 cx.propagate();
6956 return;
6957 }
6958
6959 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6960 s.move_heads_with(|map, head, _| {
6961 (
6962 movement::end_of_paragraph(map, head, 1),
6963 SelectionGoal::None,
6964 )
6965 });
6966 })
6967 }
6968
6969 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6970 if matches!(self.mode, EditorMode::SingleLine) {
6971 cx.propagate();
6972 return;
6973 }
6974
6975 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6976 s.select_ranges(vec![0..0]);
6977 });
6978 }
6979
6980 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6981 let mut selection = self.selections.last::<Point>(cx);
6982 selection.set_head(Point::zero(), SelectionGoal::None);
6983
6984 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6985 s.select(vec![selection]);
6986 });
6987 }
6988
6989 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6990 if matches!(self.mode, EditorMode::SingleLine) {
6991 cx.propagate();
6992 return;
6993 }
6994
6995 let cursor = self.buffer.read(cx).read(cx).len();
6996 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6997 s.select_ranges(vec![cursor..cursor])
6998 });
6999 }
7000
7001 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7002 self.nav_history = nav_history;
7003 }
7004
7005 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7006 self.nav_history.as_ref()
7007 }
7008
7009 fn push_to_nav_history(
7010 &mut self,
7011 cursor_anchor: Anchor,
7012 new_position: Option<Point>,
7013 cx: &mut ViewContext<Self>,
7014 ) {
7015 if let Some(nav_history) = self.nav_history.as_mut() {
7016 let buffer = self.buffer.read(cx).read(cx);
7017 let cursor_position = cursor_anchor.to_point(&buffer);
7018 let scroll_state = self.scroll_manager.anchor();
7019 let scroll_top_row = scroll_state.top_row(&buffer);
7020 drop(buffer);
7021
7022 if let Some(new_position) = new_position {
7023 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7024 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7025 return;
7026 }
7027 }
7028
7029 nav_history.push(
7030 Some(NavigationData {
7031 cursor_anchor,
7032 cursor_position,
7033 scroll_anchor: scroll_state,
7034 scroll_top_row,
7035 }),
7036 cx,
7037 );
7038 }
7039 }
7040
7041 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7042 let buffer = self.buffer.read(cx).snapshot(cx);
7043 let mut selection = self.selections.first::<usize>(cx);
7044 selection.set_head(buffer.len(), SelectionGoal::None);
7045 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7046 s.select(vec![selection]);
7047 });
7048 }
7049
7050 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7051 let end = self.buffer.read(cx).read(cx).len();
7052 self.change_selections(None, cx, |s| {
7053 s.select_ranges(vec![0..end]);
7054 });
7055 }
7056
7057 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7058 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7059 let mut selections = self.selections.all::<Point>(cx);
7060 let max_point = display_map.buffer_snapshot.max_point();
7061 for selection in &mut selections {
7062 let rows = selection.spanned_rows(true, &display_map);
7063 selection.start = Point::new(rows.start.0, 0);
7064 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7065 selection.reversed = false;
7066 }
7067 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7068 s.select(selections);
7069 });
7070 }
7071
7072 pub fn split_selection_into_lines(
7073 &mut self,
7074 _: &SplitSelectionIntoLines,
7075 cx: &mut ViewContext<Self>,
7076 ) {
7077 let mut to_unfold = Vec::new();
7078 let mut new_selection_ranges = Vec::new();
7079 {
7080 let selections = self.selections.all::<Point>(cx);
7081 let buffer = self.buffer.read(cx).read(cx);
7082 for selection in selections {
7083 for row in selection.start.row..selection.end.row {
7084 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7085 new_selection_ranges.push(cursor..cursor);
7086 }
7087 new_selection_ranges.push(selection.end..selection.end);
7088 to_unfold.push(selection.start..selection.end);
7089 }
7090 }
7091 self.unfold_ranges(to_unfold, true, true, cx);
7092 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7093 s.select_ranges(new_selection_ranges);
7094 });
7095 }
7096
7097 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7098 self.add_selection(true, cx);
7099 }
7100
7101 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7102 self.add_selection(false, cx);
7103 }
7104
7105 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7106 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7107 let mut selections = self.selections.all::<Point>(cx);
7108 let text_layout_details = self.text_layout_details(cx);
7109 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7110 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7111 let range = oldest_selection.display_range(&display_map).sorted();
7112
7113 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7114 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7115 let positions = start_x.min(end_x)..start_x.max(end_x);
7116
7117 selections.clear();
7118 let mut stack = Vec::new();
7119 for row in range.start.row().0..=range.end.row().0 {
7120 if let Some(selection) = self.selections.build_columnar_selection(
7121 &display_map,
7122 DisplayRow(row),
7123 &positions,
7124 oldest_selection.reversed,
7125 &text_layout_details,
7126 ) {
7127 stack.push(selection.id);
7128 selections.push(selection);
7129 }
7130 }
7131
7132 if above {
7133 stack.reverse();
7134 }
7135
7136 AddSelectionsState { above, stack }
7137 });
7138
7139 let last_added_selection = *state.stack.last().unwrap();
7140 let mut new_selections = Vec::new();
7141 if above == state.above {
7142 let end_row = if above {
7143 DisplayRow(0)
7144 } else {
7145 display_map.max_point().row()
7146 };
7147
7148 'outer: for selection in selections {
7149 if selection.id == last_added_selection {
7150 let range = selection.display_range(&display_map).sorted();
7151 debug_assert_eq!(range.start.row(), range.end.row());
7152 let mut row = range.start.row();
7153 let positions =
7154 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7155 px(start)..px(end)
7156 } else {
7157 let start_x =
7158 display_map.x_for_display_point(range.start, &text_layout_details);
7159 let end_x =
7160 display_map.x_for_display_point(range.end, &text_layout_details);
7161 start_x.min(end_x)..start_x.max(end_x)
7162 };
7163
7164 while row != end_row {
7165 if above {
7166 row.0 -= 1;
7167 } else {
7168 row.0 += 1;
7169 }
7170
7171 if let Some(new_selection) = self.selections.build_columnar_selection(
7172 &display_map,
7173 row,
7174 &positions,
7175 selection.reversed,
7176 &text_layout_details,
7177 ) {
7178 state.stack.push(new_selection.id);
7179 if above {
7180 new_selections.push(new_selection);
7181 new_selections.push(selection);
7182 } else {
7183 new_selections.push(selection);
7184 new_selections.push(new_selection);
7185 }
7186
7187 continue 'outer;
7188 }
7189 }
7190 }
7191
7192 new_selections.push(selection);
7193 }
7194 } else {
7195 new_selections = selections;
7196 new_selections.retain(|s| s.id != last_added_selection);
7197 state.stack.pop();
7198 }
7199
7200 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7201 s.select(new_selections);
7202 });
7203 if state.stack.len() > 1 {
7204 self.add_selections_state = Some(state);
7205 }
7206 }
7207
7208 pub fn select_next_match_internal(
7209 &mut self,
7210 display_map: &DisplaySnapshot,
7211 replace_newest: bool,
7212 autoscroll: Option<Autoscroll>,
7213 cx: &mut ViewContext<Self>,
7214 ) -> Result<()> {
7215 fn select_next_match_ranges(
7216 this: &mut Editor,
7217 range: Range<usize>,
7218 replace_newest: bool,
7219 auto_scroll: Option<Autoscroll>,
7220 cx: &mut ViewContext<Editor>,
7221 ) {
7222 this.unfold_ranges([range.clone()], false, true, cx);
7223 this.change_selections(auto_scroll, cx, |s| {
7224 if replace_newest {
7225 s.delete(s.newest_anchor().id);
7226 }
7227 s.insert_range(range.clone());
7228 });
7229 }
7230
7231 let buffer = &display_map.buffer_snapshot;
7232 let mut selections = self.selections.all::<usize>(cx);
7233 if let Some(mut select_next_state) = self.select_next_state.take() {
7234 let query = &select_next_state.query;
7235 if !select_next_state.done {
7236 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7237 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7238 let mut next_selected_range = None;
7239
7240 let bytes_after_last_selection =
7241 buffer.bytes_in_range(last_selection.end..buffer.len());
7242 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7243 let query_matches = query
7244 .stream_find_iter(bytes_after_last_selection)
7245 .map(|result| (last_selection.end, result))
7246 .chain(
7247 query
7248 .stream_find_iter(bytes_before_first_selection)
7249 .map(|result| (0, result)),
7250 );
7251
7252 for (start_offset, query_match) in query_matches {
7253 let query_match = query_match.unwrap(); // can only fail due to I/O
7254 let offset_range =
7255 start_offset + query_match.start()..start_offset + query_match.end();
7256 let display_range = offset_range.start.to_display_point(&display_map)
7257 ..offset_range.end.to_display_point(&display_map);
7258
7259 if !select_next_state.wordwise
7260 || (!movement::is_inside_word(&display_map, display_range.start)
7261 && !movement::is_inside_word(&display_map, display_range.end))
7262 {
7263 // TODO: This is n^2, because we might check all the selections
7264 if !selections
7265 .iter()
7266 .any(|selection| selection.range().overlaps(&offset_range))
7267 {
7268 next_selected_range = Some(offset_range);
7269 break;
7270 }
7271 }
7272 }
7273
7274 if let Some(next_selected_range) = next_selected_range {
7275 select_next_match_ranges(
7276 self,
7277 next_selected_range,
7278 replace_newest,
7279 autoscroll,
7280 cx,
7281 );
7282 } else {
7283 select_next_state.done = true;
7284 }
7285 }
7286
7287 self.select_next_state = Some(select_next_state);
7288 } else {
7289 let mut only_carets = true;
7290 let mut same_text_selected = true;
7291 let mut selected_text = None;
7292
7293 let mut selections_iter = selections.iter().peekable();
7294 while let Some(selection) = selections_iter.next() {
7295 if selection.start != selection.end {
7296 only_carets = false;
7297 }
7298
7299 if same_text_selected {
7300 if selected_text.is_none() {
7301 selected_text =
7302 Some(buffer.text_for_range(selection.range()).collect::<String>());
7303 }
7304
7305 if let Some(next_selection) = selections_iter.peek() {
7306 if next_selection.range().len() == selection.range().len() {
7307 let next_selected_text = buffer
7308 .text_for_range(next_selection.range())
7309 .collect::<String>();
7310 if Some(next_selected_text) != selected_text {
7311 same_text_selected = false;
7312 selected_text = None;
7313 }
7314 } else {
7315 same_text_selected = false;
7316 selected_text = None;
7317 }
7318 }
7319 }
7320 }
7321
7322 if only_carets {
7323 for selection in &mut selections {
7324 let word_range = movement::surrounding_word(
7325 &display_map,
7326 selection.start.to_display_point(&display_map),
7327 );
7328 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7329 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7330 selection.goal = SelectionGoal::None;
7331 selection.reversed = false;
7332 select_next_match_ranges(
7333 self,
7334 selection.start..selection.end,
7335 replace_newest,
7336 autoscroll,
7337 cx,
7338 );
7339 }
7340
7341 if selections.len() == 1 {
7342 let selection = selections
7343 .last()
7344 .expect("ensured that there's only one selection");
7345 let query = buffer
7346 .text_for_range(selection.start..selection.end)
7347 .collect::<String>();
7348 let is_empty = query.is_empty();
7349 let select_state = SelectNextState {
7350 query: AhoCorasick::new(&[query])?,
7351 wordwise: true,
7352 done: is_empty,
7353 };
7354 self.select_next_state = Some(select_state);
7355 } else {
7356 self.select_next_state = None;
7357 }
7358 } else if let Some(selected_text) = selected_text {
7359 self.select_next_state = Some(SelectNextState {
7360 query: AhoCorasick::new(&[selected_text])?,
7361 wordwise: false,
7362 done: false,
7363 });
7364 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7365 }
7366 }
7367 Ok(())
7368 }
7369
7370 pub fn select_all_matches(
7371 &mut self,
7372 _action: &SelectAllMatches,
7373 cx: &mut ViewContext<Self>,
7374 ) -> Result<()> {
7375 self.push_to_selection_history();
7376 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7377
7378 self.select_next_match_internal(&display_map, false, None, cx)?;
7379 let Some(select_next_state) = self.select_next_state.as_mut() else {
7380 return Ok(());
7381 };
7382 if select_next_state.done {
7383 return Ok(());
7384 }
7385
7386 let mut new_selections = self.selections.all::<usize>(cx);
7387
7388 let buffer = &display_map.buffer_snapshot;
7389 let query_matches = select_next_state
7390 .query
7391 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7392
7393 for query_match in query_matches {
7394 let query_match = query_match.unwrap(); // can only fail due to I/O
7395 let offset_range = query_match.start()..query_match.end();
7396 let display_range = offset_range.start.to_display_point(&display_map)
7397 ..offset_range.end.to_display_point(&display_map);
7398
7399 if !select_next_state.wordwise
7400 || (!movement::is_inside_word(&display_map, display_range.start)
7401 && !movement::is_inside_word(&display_map, display_range.end))
7402 {
7403 self.selections.change_with(cx, |selections| {
7404 new_selections.push(Selection {
7405 id: selections.new_selection_id(),
7406 start: offset_range.start,
7407 end: offset_range.end,
7408 reversed: false,
7409 goal: SelectionGoal::None,
7410 });
7411 });
7412 }
7413 }
7414
7415 new_selections.sort_by_key(|selection| selection.start);
7416 let mut ix = 0;
7417 while ix + 1 < new_selections.len() {
7418 let current_selection = &new_selections[ix];
7419 let next_selection = &new_selections[ix + 1];
7420 if current_selection.range().overlaps(&next_selection.range()) {
7421 if current_selection.id < next_selection.id {
7422 new_selections.remove(ix + 1);
7423 } else {
7424 new_selections.remove(ix);
7425 }
7426 } else {
7427 ix += 1;
7428 }
7429 }
7430
7431 select_next_state.done = true;
7432 self.unfold_ranges(
7433 new_selections.iter().map(|selection| selection.range()),
7434 false,
7435 false,
7436 cx,
7437 );
7438 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7439 selections.select(new_selections)
7440 });
7441
7442 Ok(())
7443 }
7444
7445 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7446 self.push_to_selection_history();
7447 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7448 self.select_next_match_internal(
7449 &display_map,
7450 action.replace_newest,
7451 Some(Autoscroll::newest()),
7452 cx,
7453 )?;
7454 Ok(())
7455 }
7456
7457 pub fn select_previous(
7458 &mut self,
7459 action: &SelectPrevious,
7460 cx: &mut ViewContext<Self>,
7461 ) -> Result<()> {
7462 self.push_to_selection_history();
7463 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7464 let buffer = &display_map.buffer_snapshot;
7465 let mut selections = self.selections.all::<usize>(cx);
7466 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7467 let query = &select_prev_state.query;
7468 if !select_prev_state.done {
7469 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7470 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7471 let mut next_selected_range = None;
7472 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7473 let bytes_before_last_selection =
7474 buffer.reversed_bytes_in_range(0..last_selection.start);
7475 let bytes_after_first_selection =
7476 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7477 let query_matches = query
7478 .stream_find_iter(bytes_before_last_selection)
7479 .map(|result| (last_selection.start, result))
7480 .chain(
7481 query
7482 .stream_find_iter(bytes_after_first_selection)
7483 .map(|result| (buffer.len(), result)),
7484 );
7485 for (end_offset, query_match) in query_matches {
7486 let query_match = query_match.unwrap(); // can only fail due to I/O
7487 let offset_range =
7488 end_offset - query_match.end()..end_offset - query_match.start();
7489 let display_range = offset_range.start.to_display_point(&display_map)
7490 ..offset_range.end.to_display_point(&display_map);
7491
7492 if !select_prev_state.wordwise
7493 || (!movement::is_inside_word(&display_map, display_range.start)
7494 && !movement::is_inside_word(&display_map, display_range.end))
7495 {
7496 next_selected_range = Some(offset_range);
7497 break;
7498 }
7499 }
7500
7501 if let Some(next_selected_range) = next_selected_range {
7502 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7503 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7504 if action.replace_newest {
7505 s.delete(s.newest_anchor().id);
7506 }
7507 s.insert_range(next_selected_range);
7508 });
7509 } else {
7510 select_prev_state.done = true;
7511 }
7512 }
7513
7514 self.select_prev_state = Some(select_prev_state);
7515 } else {
7516 let mut only_carets = true;
7517 let mut same_text_selected = true;
7518 let mut selected_text = None;
7519
7520 let mut selections_iter = selections.iter().peekable();
7521 while let Some(selection) = selections_iter.next() {
7522 if selection.start != selection.end {
7523 only_carets = false;
7524 }
7525
7526 if same_text_selected {
7527 if selected_text.is_none() {
7528 selected_text =
7529 Some(buffer.text_for_range(selection.range()).collect::<String>());
7530 }
7531
7532 if let Some(next_selection) = selections_iter.peek() {
7533 if next_selection.range().len() == selection.range().len() {
7534 let next_selected_text = buffer
7535 .text_for_range(next_selection.range())
7536 .collect::<String>();
7537 if Some(next_selected_text) != selected_text {
7538 same_text_selected = false;
7539 selected_text = None;
7540 }
7541 } else {
7542 same_text_selected = false;
7543 selected_text = None;
7544 }
7545 }
7546 }
7547 }
7548
7549 if only_carets {
7550 for selection in &mut selections {
7551 let word_range = movement::surrounding_word(
7552 &display_map,
7553 selection.start.to_display_point(&display_map),
7554 );
7555 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7556 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7557 selection.goal = SelectionGoal::None;
7558 selection.reversed = false;
7559 }
7560 if selections.len() == 1 {
7561 let selection = selections
7562 .last()
7563 .expect("ensured that there's only one selection");
7564 let query = buffer
7565 .text_for_range(selection.start..selection.end)
7566 .collect::<String>();
7567 let is_empty = query.is_empty();
7568 let select_state = SelectNextState {
7569 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7570 wordwise: true,
7571 done: is_empty,
7572 };
7573 self.select_prev_state = Some(select_state);
7574 } else {
7575 self.select_prev_state = None;
7576 }
7577
7578 self.unfold_ranges(
7579 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7580 false,
7581 true,
7582 cx,
7583 );
7584 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7585 s.select(selections);
7586 });
7587 } else if let Some(selected_text) = selected_text {
7588 self.select_prev_state = Some(SelectNextState {
7589 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7590 wordwise: false,
7591 done: false,
7592 });
7593 self.select_previous(action, cx)?;
7594 }
7595 }
7596 Ok(())
7597 }
7598
7599 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7600 let text_layout_details = &self.text_layout_details(cx);
7601 self.transact(cx, |this, cx| {
7602 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7603 let mut edits = Vec::new();
7604 let mut selection_edit_ranges = Vec::new();
7605 let mut last_toggled_row = None;
7606 let snapshot = this.buffer.read(cx).read(cx);
7607 let empty_str: Arc<str> = "".into();
7608 let mut suffixes_inserted = Vec::new();
7609
7610 fn comment_prefix_range(
7611 snapshot: &MultiBufferSnapshot,
7612 row: MultiBufferRow,
7613 comment_prefix: &str,
7614 comment_prefix_whitespace: &str,
7615 ) -> Range<Point> {
7616 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7617
7618 let mut line_bytes = snapshot
7619 .bytes_in_range(start..snapshot.max_point())
7620 .flatten()
7621 .copied();
7622
7623 // If this line currently begins with the line comment prefix, then record
7624 // the range containing the prefix.
7625 if line_bytes
7626 .by_ref()
7627 .take(comment_prefix.len())
7628 .eq(comment_prefix.bytes())
7629 {
7630 // Include any whitespace that matches the comment prefix.
7631 let matching_whitespace_len = line_bytes
7632 .zip(comment_prefix_whitespace.bytes())
7633 .take_while(|(a, b)| a == b)
7634 .count() as u32;
7635 let end = Point::new(
7636 start.row,
7637 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7638 );
7639 start..end
7640 } else {
7641 start..start
7642 }
7643 }
7644
7645 fn comment_suffix_range(
7646 snapshot: &MultiBufferSnapshot,
7647 row: MultiBufferRow,
7648 comment_suffix: &str,
7649 comment_suffix_has_leading_space: bool,
7650 ) -> Range<Point> {
7651 let end = Point::new(row.0, snapshot.line_len(row));
7652 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7653
7654 let mut line_end_bytes = snapshot
7655 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7656 .flatten()
7657 .copied();
7658
7659 let leading_space_len = if suffix_start_column > 0
7660 && line_end_bytes.next() == Some(b' ')
7661 && comment_suffix_has_leading_space
7662 {
7663 1
7664 } else {
7665 0
7666 };
7667
7668 // If this line currently begins with the line comment prefix, then record
7669 // the range containing the prefix.
7670 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7671 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7672 start..end
7673 } else {
7674 end..end
7675 }
7676 }
7677
7678 // TODO: Handle selections that cross excerpts
7679 for selection in &mut selections {
7680 let start_column = snapshot
7681 .indent_size_for_line(MultiBufferRow(selection.start.row))
7682 .len;
7683 let language = if let Some(language) =
7684 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7685 {
7686 language
7687 } else {
7688 continue;
7689 };
7690
7691 selection_edit_ranges.clear();
7692
7693 // If multiple selections contain a given row, avoid processing that
7694 // row more than once.
7695 let mut start_row = MultiBufferRow(selection.start.row);
7696 if last_toggled_row == Some(start_row) {
7697 start_row = start_row.next_row();
7698 }
7699 let end_row =
7700 if selection.end.row > selection.start.row && selection.end.column == 0 {
7701 MultiBufferRow(selection.end.row - 1)
7702 } else {
7703 MultiBufferRow(selection.end.row)
7704 };
7705 last_toggled_row = Some(end_row);
7706
7707 if start_row > end_row {
7708 continue;
7709 }
7710
7711 // If the language has line comments, toggle those.
7712 let full_comment_prefixes = language.line_comment_prefixes();
7713 if !full_comment_prefixes.is_empty() {
7714 let first_prefix = full_comment_prefixes
7715 .first()
7716 .expect("prefixes is non-empty");
7717 let prefix_trimmed_lengths = full_comment_prefixes
7718 .iter()
7719 .map(|p| p.trim_end_matches(' ').len())
7720 .collect::<SmallVec<[usize; 4]>>();
7721
7722 let mut all_selection_lines_are_comments = true;
7723
7724 for row in start_row.0..=end_row.0 {
7725 let row = MultiBufferRow(row);
7726 if start_row < end_row && snapshot.is_line_blank(row) {
7727 continue;
7728 }
7729
7730 let prefix_range = full_comment_prefixes
7731 .iter()
7732 .zip(prefix_trimmed_lengths.iter().copied())
7733 .map(|(prefix, trimmed_prefix_len)| {
7734 comment_prefix_range(
7735 snapshot.deref(),
7736 row,
7737 &prefix[..trimmed_prefix_len],
7738 &prefix[trimmed_prefix_len..],
7739 )
7740 })
7741 .max_by_key(|range| range.end.column - range.start.column)
7742 .expect("prefixes is non-empty");
7743
7744 if prefix_range.is_empty() {
7745 all_selection_lines_are_comments = false;
7746 }
7747
7748 selection_edit_ranges.push(prefix_range);
7749 }
7750
7751 if all_selection_lines_are_comments {
7752 edits.extend(
7753 selection_edit_ranges
7754 .iter()
7755 .cloned()
7756 .map(|range| (range, empty_str.clone())),
7757 );
7758 } else {
7759 let min_column = selection_edit_ranges
7760 .iter()
7761 .map(|range| range.start.column)
7762 .min()
7763 .unwrap_or(0);
7764 edits.extend(selection_edit_ranges.iter().map(|range| {
7765 let position = Point::new(range.start.row, min_column);
7766 (position..position, first_prefix.clone())
7767 }));
7768 }
7769 } else if let Some((full_comment_prefix, comment_suffix)) =
7770 language.block_comment_delimiters()
7771 {
7772 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7773 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7774 let prefix_range = comment_prefix_range(
7775 snapshot.deref(),
7776 start_row,
7777 comment_prefix,
7778 comment_prefix_whitespace,
7779 );
7780 let suffix_range = comment_suffix_range(
7781 snapshot.deref(),
7782 end_row,
7783 comment_suffix.trim_start_matches(' '),
7784 comment_suffix.starts_with(' '),
7785 );
7786
7787 if prefix_range.is_empty() || suffix_range.is_empty() {
7788 edits.push((
7789 prefix_range.start..prefix_range.start,
7790 full_comment_prefix.clone(),
7791 ));
7792 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7793 suffixes_inserted.push((end_row, comment_suffix.len()));
7794 } else {
7795 edits.push((prefix_range, empty_str.clone()));
7796 edits.push((suffix_range, empty_str.clone()));
7797 }
7798 } else {
7799 continue;
7800 }
7801 }
7802
7803 drop(snapshot);
7804 this.buffer.update(cx, |buffer, cx| {
7805 buffer.edit(edits, None, cx);
7806 });
7807
7808 // Adjust selections so that they end before any comment suffixes that
7809 // were inserted.
7810 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7811 let mut selections = this.selections.all::<Point>(cx);
7812 let snapshot = this.buffer.read(cx).read(cx);
7813 for selection in &mut selections {
7814 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7815 match row.cmp(&MultiBufferRow(selection.end.row)) {
7816 Ordering::Less => {
7817 suffixes_inserted.next();
7818 continue;
7819 }
7820 Ordering::Greater => break,
7821 Ordering::Equal => {
7822 if selection.end.column == snapshot.line_len(row) {
7823 if selection.is_empty() {
7824 selection.start.column -= suffix_len as u32;
7825 }
7826 selection.end.column -= suffix_len as u32;
7827 }
7828 break;
7829 }
7830 }
7831 }
7832 }
7833
7834 drop(snapshot);
7835 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7836
7837 let selections = this.selections.all::<Point>(cx);
7838 let selections_on_single_row = selections.windows(2).all(|selections| {
7839 selections[0].start.row == selections[1].start.row
7840 && selections[0].end.row == selections[1].end.row
7841 && selections[0].start.row == selections[0].end.row
7842 });
7843 let selections_selecting = selections
7844 .iter()
7845 .any(|selection| selection.start != selection.end);
7846 let advance_downwards = action.advance_downwards
7847 && selections_on_single_row
7848 && !selections_selecting
7849 && this.mode != EditorMode::SingleLine;
7850
7851 if advance_downwards {
7852 let snapshot = this.buffer.read(cx).snapshot(cx);
7853
7854 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7855 s.move_cursors_with(|display_snapshot, display_point, _| {
7856 let mut point = display_point.to_point(display_snapshot);
7857 point.row += 1;
7858 point = snapshot.clip_point(point, Bias::Left);
7859 let display_point = point.to_display_point(display_snapshot);
7860 let goal = SelectionGoal::HorizontalPosition(
7861 display_snapshot
7862 .x_for_display_point(display_point, &text_layout_details)
7863 .into(),
7864 );
7865 (display_point, goal)
7866 })
7867 });
7868 }
7869 });
7870 }
7871
7872 pub fn select_larger_syntax_node(
7873 &mut self,
7874 _: &SelectLargerSyntaxNode,
7875 cx: &mut ViewContext<Self>,
7876 ) {
7877 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7878 let buffer = self.buffer.read(cx).snapshot(cx);
7879 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7880
7881 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7882 let mut selected_larger_node = false;
7883 let new_selections = old_selections
7884 .iter()
7885 .map(|selection| {
7886 let old_range = selection.start..selection.end;
7887 let mut new_range = old_range.clone();
7888 while let Some(containing_range) =
7889 buffer.range_for_syntax_ancestor(new_range.clone())
7890 {
7891 new_range = containing_range;
7892 if !display_map.intersects_fold(new_range.start)
7893 && !display_map.intersects_fold(new_range.end)
7894 {
7895 break;
7896 }
7897 }
7898
7899 selected_larger_node |= new_range != old_range;
7900 Selection {
7901 id: selection.id,
7902 start: new_range.start,
7903 end: new_range.end,
7904 goal: SelectionGoal::None,
7905 reversed: selection.reversed,
7906 }
7907 })
7908 .collect::<Vec<_>>();
7909
7910 if selected_larger_node {
7911 stack.push(old_selections);
7912 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7913 s.select(new_selections);
7914 });
7915 }
7916 self.select_larger_syntax_node_stack = stack;
7917 }
7918
7919 pub fn select_smaller_syntax_node(
7920 &mut self,
7921 _: &SelectSmallerSyntaxNode,
7922 cx: &mut ViewContext<Self>,
7923 ) {
7924 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7925 if let Some(selections) = stack.pop() {
7926 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7927 s.select(selections.to_vec());
7928 });
7929 }
7930 self.select_larger_syntax_node_stack = stack;
7931 }
7932
7933 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7934 let project = self.project.clone();
7935 cx.spawn(|this, mut cx| async move {
7936 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7937 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7938 }) else {
7939 return;
7940 };
7941
7942 let Some(project) = project else {
7943 return;
7944 };
7945
7946 let hide_runnables = project
7947 .update(&mut cx, |project, cx| {
7948 // Do not display any test indicators in non-dev server remote projects.
7949 project.is_remote() && project.ssh_connection_string(cx).is_none()
7950 })
7951 .unwrap_or(true);
7952 if hide_runnables {
7953 return;
7954 }
7955 let new_rows =
7956 cx.background_executor()
7957 .spawn({
7958 let snapshot = display_snapshot.clone();
7959 async move {
7960 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7961 }
7962 })
7963 .await;
7964 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7965
7966 this.update(&mut cx, |this, _| {
7967 this.clear_tasks();
7968 for (key, value) in rows {
7969 this.insert_tasks(key, value);
7970 }
7971 })
7972 .ok();
7973 })
7974 }
7975 fn fetch_runnable_ranges(
7976 snapshot: &DisplaySnapshot,
7977 range: Range<Anchor>,
7978 ) -> Vec<language::RunnableRange> {
7979 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7980 }
7981
7982 fn runnable_rows(
7983 project: Model<Project>,
7984 snapshot: DisplaySnapshot,
7985 runnable_ranges: Vec<RunnableRange>,
7986 mut cx: AsyncWindowContext,
7987 ) -> Vec<((BufferId, u32), RunnableTasks)> {
7988 runnable_ranges
7989 .into_iter()
7990 .filter_map(|mut runnable| {
7991 let tasks = cx
7992 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
7993 .ok()?;
7994 if tasks.is_empty() {
7995 return None;
7996 }
7997
7998 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7999
8000 let row = snapshot
8001 .buffer_snapshot
8002 .buffer_line_for_row(MultiBufferRow(point.row))?
8003 .1
8004 .start
8005 .row;
8006
8007 let context_range =
8008 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8009 Some((
8010 (runnable.buffer_id, row),
8011 RunnableTasks {
8012 templates: tasks,
8013 offset: MultiBufferOffset(runnable.run_range.start),
8014 context_range,
8015 column: point.column,
8016 extra_variables: runnable.extra_captures,
8017 },
8018 ))
8019 })
8020 .collect()
8021 }
8022
8023 fn templates_with_tags(
8024 project: &Model<Project>,
8025 runnable: &mut Runnable,
8026 cx: &WindowContext<'_>,
8027 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8028 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
8029 let worktree_id = project
8030 .buffer_for_id(runnable.buffer)
8031 .and_then(|buffer| buffer.read(cx).file())
8032 .map(|file| WorktreeId::from_usize(file.worktree_id()));
8033
8034 (project.task_inventory().clone(), worktree_id)
8035 });
8036
8037 let inventory = inventory.read(cx);
8038 let tags = mem::take(&mut runnable.tags);
8039 let mut tags: Vec<_> = tags
8040 .into_iter()
8041 .flat_map(|tag| {
8042 let tag = tag.0.clone();
8043 inventory
8044 .list_tasks(Some(runnable.language.clone()), worktree_id)
8045 .into_iter()
8046 .filter(move |(_, template)| {
8047 template.tags.iter().any(|source_tag| source_tag == &tag)
8048 })
8049 })
8050 .sorted_by_key(|(kind, _)| kind.to_owned())
8051 .collect();
8052 if let Some((leading_tag_source, _)) = tags.first() {
8053 // Strongest source wins; if we have worktree tag binding, prefer that to
8054 // global and language bindings;
8055 // if we have a global binding, prefer that to language binding.
8056 let first_mismatch = tags
8057 .iter()
8058 .position(|(tag_source, _)| tag_source != leading_tag_source);
8059 if let Some(index) = first_mismatch {
8060 tags.truncate(index);
8061 }
8062 }
8063
8064 tags
8065 }
8066
8067 pub fn move_to_enclosing_bracket(
8068 &mut self,
8069 _: &MoveToEnclosingBracket,
8070 cx: &mut ViewContext<Self>,
8071 ) {
8072 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8073 s.move_offsets_with(|snapshot, selection| {
8074 let Some(enclosing_bracket_ranges) =
8075 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8076 else {
8077 return;
8078 };
8079
8080 let mut best_length = usize::MAX;
8081 let mut best_inside = false;
8082 let mut best_in_bracket_range = false;
8083 let mut best_destination = None;
8084 for (open, close) in enclosing_bracket_ranges {
8085 let close = close.to_inclusive();
8086 let length = close.end() - open.start;
8087 let inside = selection.start >= open.end && selection.end <= *close.start();
8088 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8089 || close.contains(&selection.head());
8090
8091 // If best is next to a bracket and current isn't, skip
8092 if !in_bracket_range && best_in_bracket_range {
8093 continue;
8094 }
8095
8096 // Prefer smaller lengths unless best is inside and current isn't
8097 if length > best_length && (best_inside || !inside) {
8098 continue;
8099 }
8100
8101 best_length = length;
8102 best_inside = inside;
8103 best_in_bracket_range = in_bracket_range;
8104 best_destination = Some(
8105 if close.contains(&selection.start) && close.contains(&selection.end) {
8106 if inside {
8107 open.end
8108 } else {
8109 open.start
8110 }
8111 } else {
8112 if inside {
8113 *close.start()
8114 } else {
8115 *close.end()
8116 }
8117 },
8118 );
8119 }
8120
8121 if let Some(destination) = best_destination {
8122 selection.collapse_to(destination, SelectionGoal::None);
8123 }
8124 })
8125 });
8126 }
8127
8128 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8129 self.end_selection(cx);
8130 self.selection_history.mode = SelectionHistoryMode::Undoing;
8131 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8132 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8133 self.select_next_state = entry.select_next_state;
8134 self.select_prev_state = entry.select_prev_state;
8135 self.add_selections_state = entry.add_selections_state;
8136 self.request_autoscroll(Autoscroll::newest(), cx);
8137 }
8138 self.selection_history.mode = SelectionHistoryMode::Normal;
8139 }
8140
8141 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8142 self.end_selection(cx);
8143 self.selection_history.mode = SelectionHistoryMode::Redoing;
8144 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8145 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8146 self.select_next_state = entry.select_next_state;
8147 self.select_prev_state = entry.select_prev_state;
8148 self.add_selections_state = entry.add_selections_state;
8149 self.request_autoscroll(Autoscroll::newest(), cx);
8150 }
8151 self.selection_history.mode = SelectionHistoryMode::Normal;
8152 }
8153
8154 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8155 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8156 }
8157
8158 pub fn expand_excerpts_down(
8159 &mut self,
8160 action: &ExpandExcerptsDown,
8161 cx: &mut ViewContext<Self>,
8162 ) {
8163 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8164 }
8165
8166 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8167 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8168 }
8169
8170 pub fn expand_excerpts_for_direction(
8171 &mut self,
8172 lines: u32,
8173 direction: ExpandExcerptDirection,
8174 cx: &mut ViewContext<Self>,
8175 ) {
8176 let selections = self.selections.disjoint_anchors();
8177
8178 let lines = if lines == 0 {
8179 EditorSettings::get_global(cx).expand_excerpt_lines
8180 } else {
8181 lines
8182 };
8183
8184 self.buffer.update(cx, |buffer, cx| {
8185 buffer.expand_excerpts(
8186 selections
8187 .into_iter()
8188 .map(|selection| selection.head().excerpt_id)
8189 .dedup(),
8190 lines,
8191 direction,
8192 cx,
8193 )
8194 })
8195 }
8196
8197 pub fn expand_excerpt(
8198 &mut self,
8199 excerpt: ExcerptId,
8200 direction: ExpandExcerptDirection,
8201 cx: &mut ViewContext<Self>,
8202 ) {
8203 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8204 self.buffer.update(cx, |buffer, cx| {
8205 buffer.expand_excerpts([excerpt], lines, direction, cx)
8206 })
8207 }
8208
8209 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8210 self.go_to_diagnostic_impl(Direction::Next, cx)
8211 }
8212
8213 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8214 self.go_to_diagnostic_impl(Direction::Prev, cx)
8215 }
8216
8217 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8218 let buffer = self.buffer.read(cx).snapshot(cx);
8219 let selection = self.selections.newest::<usize>(cx);
8220
8221 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8222 if direction == Direction::Next {
8223 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8224 let (group_id, jump_to) = popover.activation_info();
8225 if self.activate_diagnostics(group_id, cx) {
8226 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8227 let mut new_selection = s.newest_anchor().clone();
8228 new_selection.collapse_to(jump_to, SelectionGoal::None);
8229 s.select_anchors(vec![new_selection.clone()]);
8230 });
8231 }
8232 return;
8233 }
8234 }
8235
8236 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8237 active_diagnostics
8238 .primary_range
8239 .to_offset(&buffer)
8240 .to_inclusive()
8241 });
8242 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8243 if active_primary_range.contains(&selection.head()) {
8244 *active_primary_range.start()
8245 } else {
8246 selection.head()
8247 }
8248 } else {
8249 selection.head()
8250 };
8251 let snapshot = self.snapshot(cx);
8252 loop {
8253 let diagnostics = if direction == Direction::Prev {
8254 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8255 } else {
8256 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8257 }
8258 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8259 let group = diagnostics
8260 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8261 // be sorted in a stable way
8262 // skip until we are at current active diagnostic, if it exists
8263 .skip_while(|entry| {
8264 (match direction {
8265 Direction::Prev => entry.range.start >= search_start,
8266 Direction::Next => entry.range.start <= search_start,
8267 }) && self
8268 .active_diagnostics
8269 .as_ref()
8270 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8271 })
8272 .find_map(|entry| {
8273 if entry.diagnostic.is_primary
8274 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8275 && !entry.range.is_empty()
8276 // if we match with the active diagnostic, skip it
8277 && Some(entry.diagnostic.group_id)
8278 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8279 {
8280 Some((entry.range, entry.diagnostic.group_id))
8281 } else {
8282 None
8283 }
8284 });
8285
8286 if let Some((primary_range, group_id)) = group {
8287 if self.activate_diagnostics(group_id, cx) {
8288 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8289 s.select(vec![Selection {
8290 id: selection.id,
8291 start: primary_range.start,
8292 end: primary_range.start,
8293 reversed: false,
8294 goal: SelectionGoal::None,
8295 }]);
8296 });
8297 }
8298 break;
8299 } else {
8300 // Cycle around to the start of the buffer, potentially moving back to the start of
8301 // the currently active diagnostic.
8302 active_primary_range.take();
8303 if direction == Direction::Prev {
8304 if search_start == buffer.len() {
8305 break;
8306 } else {
8307 search_start = buffer.len();
8308 }
8309 } else if search_start == 0 {
8310 break;
8311 } else {
8312 search_start = 0;
8313 }
8314 }
8315 }
8316 }
8317
8318 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8319 let snapshot = self
8320 .display_map
8321 .update(cx, |display_map, cx| display_map.snapshot(cx));
8322 let selection = self.selections.newest::<Point>(cx);
8323
8324 if !self.seek_in_direction(
8325 &snapshot,
8326 selection.head(),
8327 false,
8328 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8329 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8330 ),
8331 cx,
8332 ) {
8333 let wrapped_point = Point::zero();
8334 self.seek_in_direction(
8335 &snapshot,
8336 wrapped_point,
8337 true,
8338 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8339 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8340 ),
8341 cx,
8342 );
8343 }
8344 }
8345
8346 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8347 let snapshot = self
8348 .display_map
8349 .update(cx, |display_map, cx| display_map.snapshot(cx));
8350 let selection = self.selections.newest::<Point>(cx);
8351
8352 if !self.seek_in_direction(
8353 &snapshot,
8354 selection.head(),
8355 false,
8356 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8357 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8358 ),
8359 cx,
8360 ) {
8361 let wrapped_point = snapshot.buffer_snapshot.max_point();
8362 self.seek_in_direction(
8363 &snapshot,
8364 wrapped_point,
8365 true,
8366 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8367 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8368 ),
8369 cx,
8370 );
8371 }
8372 }
8373
8374 fn seek_in_direction(
8375 &mut self,
8376 snapshot: &DisplaySnapshot,
8377 initial_point: Point,
8378 is_wrapped: bool,
8379 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8380 cx: &mut ViewContext<Editor>,
8381 ) -> bool {
8382 let display_point = initial_point.to_display_point(snapshot);
8383 let mut hunks = hunks
8384 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8385 .filter(|hunk| {
8386 if is_wrapped {
8387 true
8388 } else {
8389 !hunk.contains_display_row(display_point.row())
8390 }
8391 })
8392 .dedup();
8393
8394 if let Some(hunk) = hunks.next() {
8395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8396 let row = hunk.start_display_row();
8397 let point = DisplayPoint::new(row, 0);
8398 s.select_display_ranges([point..point]);
8399 });
8400
8401 true
8402 } else {
8403 false
8404 }
8405 }
8406
8407 pub fn go_to_definition(
8408 &mut self,
8409 _: &GoToDefinition,
8410 cx: &mut ViewContext<Self>,
8411 ) -> Task<Result<bool>> {
8412 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8413 }
8414
8415 pub fn go_to_implementation(
8416 &mut self,
8417 _: &GoToImplementation,
8418 cx: &mut ViewContext<Self>,
8419 ) -> Task<Result<bool>> {
8420 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8421 }
8422
8423 pub fn go_to_implementation_split(
8424 &mut self,
8425 _: &GoToImplementationSplit,
8426 cx: &mut ViewContext<Self>,
8427 ) -> Task<Result<bool>> {
8428 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8429 }
8430
8431 pub fn go_to_type_definition(
8432 &mut self,
8433 _: &GoToTypeDefinition,
8434 cx: &mut ViewContext<Self>,
8435 ) -> Task<Result<bool>> {
8436 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8437 }
8438
8439 pub fn go_to_definition_split(
8440 &mut self,
8441 _: &GoToDefinitionSplit,
8442 cx: &mut ViewContext<Self>,
8443 ) -> Task<Result<bool>> {
8444 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8445 }
8446
8447 pub fn go_to_type_definition_split(
8448 &mut self,
8449 _: &GoToTypeDefinitionSplit,
8450 cx: &mut ViewContext<Self>,
8451 ) -> Task<Result<bool>> {
8452 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8453 }
8454
8455 fn go_to_definition_of_kind(
8456 &mut self,
8457 kind: GotoDefinitionKind,
8458 split: bool,
8459 cx: &mut ViewContext<Self>,
8460 ) -> Task<Result<bool>> {
8461 let Some(workspace) = self.workspace() else {
8462 return Task::ready(Ok(false));
8463 };
8464 let buffer = self.buffer.read(cx);
8465 let head = self.selections.newest::<usize>(cx).head();
8466 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8467 text_anchor
8468 } else {
8469 return Task::ready(Ok(false));
8470 };
8471
8472 let project = workspace.read(cx).project().clone();
8473 let definitions = project.update(cx, |project, cx| match kind {
8474 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8475 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8476 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8477 });
8478
8479 cx.spawn(|editor, mut cx| async move {
8480 let definitions = definitions.await?;
8481 let navigated = editor
8482 .update(&mut cx, |editor, cx| {
8483 editor.navigate_to_hover_links(
8484 Some(kind),
8485 definitions
8486 .into_iter()
8487 .filter(|location| {
8488 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8489 })
8490 .map(HoverLink::Text)
8491 .collect::<Vec<_>>(),
8492 split,
8493 cx,
8494 )
8495 })?
8496 .await?;
8497 anyhow::Ok(navigated)
8498 })
8499 }
8500
8501 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8502 let position = self.selections.newest_anchor().head();
8503 let Some((buffer, buffer_position)) =
8504 self.buffer.read(cx).text_anchor_for_position(position, cx)
8505 else {
8506 return;
8507 };
8508
8509 cx.spawn(|editor, mut cx| async move {
8510 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8511 editor.update(&mut cx, |_, cx| {
8512 cx.open_url(&url);
8513 })
8514 } else {
8515 Ok(())
8516 }
8517 })
8518 .detach();
8519 }
8520
8521 pub(crate) fn navigate_to_hover_links(
8522 &mut self,
8523 kind: Option<GotoDefinitionKind>,
8524 mut definitions: Vec<HoverLink>,
8525 split: bool,
8526 cx: &mut ViewContext<Editor>,
8527 ) -> Task<Result<bool>> {
8528 // If there is one definition, just open it directly
8529 if definitions.len() == 1 {
8530 let definition = definitions.pop().unwrap();
8531 let target_task = match definition {
8532 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8533 HoverLink::InlayHint(lsp_location, server_id) => {
8534 self.compute_target_location(lsp_location, server_id, cx)
8535 }
8536 HoverLink::Url(url) => {
8537 cx.open_url(&url);
8538 Task::ready(Ok(None))
8539 }
8540 };
8541 cx.spawn(|editor, mut cx| async move {
8542 let target = target_task.await.context("target resolution task")?;
8543 if let Some(target) = target {
8544 editor.update(&mut cx, |editor, cx| {
8545 let Some(workspace) = editor.workspace() else {
8546 return false;
8547 };
8548 let pane = workspace.read(cx).active_pane().clone();
8549
8550 let range = target.range.to_offset(target.buffer.read(cx));
8551 let range = editor.range_for_match(&range);
8552
8553 /// If select range has more than one line, we
8554 /// just point the cursor to range.start.
8555 fn check_multiline_range(
8556 buffer: &Buffer,
8557 range: Range<usize>,
8558 ) -> Range<usize> {
8559 if buffer.offset_to_point(range.start).row
8560 == buffer.offset_to_point(range.end).row
8561 {
8562 range
8563 } else {
8564 range.start..range.start
8565 }
8566 }
8567
8568 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8569 let buffer = target.buffer.read(cx);
8570 let range = check_multiline_range(buffer, range);
8571 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8572 s.select_ranges([range]);
8573 });
8574 } else {
8575 cx.window_context().defer(move |cx| {
8576 let target_editor: View<Self> =
8577 workspace.update(cx, |workspace, cx| {
8578 let pane = if split {
8579 workspace.adjacent_pane(cx)
8580 } else {
8581 workspace.active_pane().clone()
8582 };
8583
8584 workspace.open_project_item(pane, target.buffer.clone(), cx)
8585 });
8586 target_editor.update(cx, |target_editor, cx| {
8587 // When selecting a definition in a different buffer, disable the nav history
8588 // to avoid creating a history entry at the previous cursor location.
8589 pane.update(cx, |pane, _| pane.disable_history());
8590 let buffer = target.buffer.read(cx);
8591 let range = check_multiline_range(buffer, range);
8592 target_editor.change_selections(
8593 Some(Autoscroll::focused()),
8594 cx,
8595 |s| {
8596 s.select_ranges([range]);
8597 },
8598 );
8599 pane.update(cx, |pane, _| pane.enable_history());
8600 });
8601 });
8602 }
8603 true
8604 })
8605 } else {
8606 Ok(false)
8607 }
8608 })
8609 } else if !definitions.is_empty() {
8610 let replica_id = self.replica_id(cx);
8611 cx.spawn(|editor, mut cx| async move {
8612 let (title, location_tasks, workspace) = editor
8613 .update(&mut cx, |editor, cx| {
8614 let tab_kind = match kind {
8615 Some(GotoDefinitionKind::Implementation) => "Implementations",
8616 _ => "Definitions",
8617 };
8618 let title = definitions
8619 .iter()
8620 .find_map(|definition| match definition {
8621 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8622 let buffer = origin.buffer.read(cx);
8623 format!(
8624 "{} for {}",
8625 tab_kind,
8626 buffer
8627 .text_for_range(origin.range.clone())
8628 .collect::<String>()
8629 )
8630 }),
8631 HoverLink::InlayHint(_, _) => None,
8632 HoverLink::Url(_) => None,
8633 })
8634 .unwrap_or(tab_kind.to_string());
8635 let location_tasks = definitions
8636 .into_iter()
8637 .map(|definition| match definition {
8638 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8639 HoverLink::InlayHint(lsp_location, server_id) => {
8640 editor.compute_target_location(lsp_location, server_id, cx)
8641 }
8642 HoverLink::Url(_) => Task::ready(Ok(None)),
8643 })
8644 .collect::<Vec<_>>();
8645 (title, location_tasks, editor.workspace().clone())
8646 })
8647 .context("location tasks preparation")?;
8648
8649 let locations = futures::future::join_all(location_tasks)
8650 .await
8651 .into_iter()
8652 .filter_map(|location| location.transpose())
8653 .collect::<Result<_>>()
8654 .context("location tasks")?;
8655
8656 let Some(workspace) = workspace else {
8657 return Ok(false);
8658 };
8659 let opened = workspace
8660 .update(&mut cx, |workspace, cx| {
8661 Self::open_locations_in_multibuffer(
8662 workspace, locations, replica_id, title, split, cx,
8663 )
8664 })
8665 .ok();
8666
8667 anyhow::Ok(opened.is_some())
8668 })
8669 } else {
8670 Task::ready(Ok(false))
8671 }
8672 }
8673
8674 fn compute_target_location(
8675 &self,
8676 lsp_location: lsp::Location,
8677 server_id: LanguageServerId,
8678 cx: &mut ViewContext<Editor>,
8679 ) -> Task<anyhow::Result<Option<Location>>> {
8680 let Some(project) = self.project.clone() else {
8681 return Task::Ready(Some(Ok(None)));
8682 };
8683
8684 cx.spawn(move |editor, mut cx| async move {
8685 let location_task = editor.update(&mut cx, |editor, cx| {
8686 project.update(cx, |project, cx| {
8687 let language_server_name =
8688 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8689 project
8690 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8691 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8692 });
8693 language_server_name.map(|language_server_name| {
8694 project.open_local_buffer_via_lsp(
8695 lsp_location.uri.clone(),
8696 server_id,
8697 language_server_name,
8698 cx,
8699 )
8700 })
8701 })
8702 })?;
8703 let location = match location_task {
8704 Some(task) => Some({
8705 let target_buffer_handle = task.await.context("open local buffer")?;
8706 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8707 let target_start = target_buffer
8708 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8709 let target_end = target_buffer
8710 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8711 target_buffer.anchor_after(target_start)
8712 ..target_buffer.anchor_before(target_end)
8713 })?;
8714 Location {
8715 buffer: target_buffer_handle,
8716 range,
8717 }
8718 }),
8719 None => None,
8720 };
8721 Ok(location)
8722 })
8723 }
8724
8725 pub fn find_all_references(
8726 &mut self,
8727 _: &FindAllReferences,
8728 cx: &mut ViewContext<Self>,
8729 ) -> Option<Task<Result<()>>> {
8730 let multi_buffer = self.buffer.read(cx);
8731 let selection = self.selections.newest::<usize>(cx);
8732 let head = selection.head();
8733
8734 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8735 let head_anchor = multi_buffer_snapshot.anchor_at(
8736 head,
8737 if head < selection.tail() {
8738 Bias::Right
8739 } else {
8740 Bias::Left
8741 },
8742 );
8743
8744 match self
8745 .find_all_references_task_sources
8746 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8747 {
8748 Ok(_) => {
8749 log::info!(
8750 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8751 );
8752 return None;
8753 }
8754 Err(i) => {
8755 self.find_all_references_task_sources.insert(i, head_anchor);
8756 }
8757 }
8758
8759 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8760 let replica_id = self.replica_id(cx);
8761 let workspace = self.workspace()?;
8762 let project = workspace.read(cx).project().clone();
8763 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8764 Some(cx.spawn(|editor, mut cx| async move {
8765 let _cleanup = defer({
8766 let mut cx = cx.clone();
8767 move || {
8768 let _ = editor.update(&mut cx, |editor, _| {
8769 if let Ok(i) =
8770 editor
8771 .find_all_references_task_sources
8772 .binary_search_by(|anchor| {
8773 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8774 })
8775 {
8776 editor.find_all_references_task_sources.remove(i);
8777 }
8778 });
8779 }
8780 });
8781
8782 let locations = references.await?;
8783 if locations.is_empty() {
8784 return anyhow::Ok(());
8785 }
8786
8787 workspace.update(&mut cx, |workspace, cx| {
8788 let title = locations
8789 .first()
8790 .as_ref()
8791 .map(|location| {
8792 let buffer = location.buffer.read(cx);
8793 format!(
8794 "References to `{}`",
8795 buffer
8796 .text_for_range(location.range.clone())
8797 .collect::<String>()
8798 )
8799 })
8800 .unwrap();
8801 Self::open_locations_in_multibuffer(
8802 workspace, locations, replica_id, title, false, cx,
8803 );
8804 })
8805 }))
8806 }
8807
8808 /// Opens a multibuffer with the given project locations in it
8809 pub fn open_locations_in_multibuffer(
8810 workspace: &mut Workspace,
8811 mut locations: Vec<Location>,
8812 replica_id: ReplicaId,
8813 title: String,
8814 split: bool,
8815 cx: &mut ViewContext<Workspace>,
8816 ) {
8817 // If there are multiple definitions, open them in a multibuffer
8818 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8819 let mut locations = locations.into_iter().peekable();
8820 let mut ranges_to_highlight = Vec::new();
8821 let capability = workspace.project().read(cx).capability();
8822
8823 let excerpt_buffer = cx.new_model(|cx| {
8824 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8825 while let Some(location) = locations.next() {
8826 let buffer = location.buffer.read(cx);
8827 let mut ranges_for_buffer = Vec::new();
8828 let range = location.range.to_offset(buffer);
8829 ranges_for_buffer.push(range.clone());
8830
8831 while let Some(next_location) = locations.peek() {
8832 if next_location.buffer == location.buffer {
8833 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8834 locations.next();
8835 } else {
8836 break;
8837 }
8838 }
8839
8840 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8841 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8842 location.buffer.clone(),
8843 ranges_for_buffer,
8844 DEFAULT_MULTIBUFFER_CONTEXT,
8845 cx,
8846 ))
8847 }
8848
8849 multibuffer.with_title(title)
8850 });
8851
8852 let editor = cx.new_view(|cx| {
8853 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
8854 });
8855 editor.update(cx, |editor, cx| {
8856 editor.highlight_background::<Self>(
8857 &ranges_to_highlight,
8858 |theme| theme.editor_highlighted_line_background,
8859 cx,
8860 );
8861 });
8862
8863 let item = Box::new(editor);
8864 let item_id = item.item_id();
8865
8866 if split {
8867 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8868 } else {
8869 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8870 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8871 pane.close_current_preview_item(cx)
8872 } else {
8873 None
8874 }
8875 });
8876 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8877 }
8878 workspace.active_pane().update(cx, |pane, cx| {
8879 pane.set_preview_item_id(Some(item_id), cx);
8880 });
8881 }
8882
8883 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8884 use language::ToOffset as _;
8885
8886 let project = self.project.clone()?;
8887 let selection = self.selections.newest_anchor().clone();
8888 let (cursor_buffer, cursor_buffer_position) = self
8889 .buffer
8890 .read(cx)
8891 .text_anchor_for_position(selection.head(), cx)?;
8892 let (tail_buffer, cursor_buffer_position_end) = self
8893 .buffer
8894 .read(cx)
8895 .text_anchor_for_position(selection.tail(), cx)?;
8896 if tail_buffer != cursor_buffer {
8897 return None;
8898 }
8899
8900 let snapshot = cursor_buffer.read(cx).snapshot();
8901 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8902 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8903 let prepare_rename = project.update(cx, |project, cx| {
8904 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8905 });
8906 drop(snapshot);
8907
8908 Some(cx.spawn(|this, mut cx| async move {
8909 let rename_range = if let Some(range) = prepare_rename.await? {
8910 Some(range)
8911 } else {
8912 this.update(&mut cx, |this, cx| {
8913 let buffer = this.buffer.read(cx).snapshot(cx);
8914 let mut buffer_highlights = this
8915 .document_highlights_for_position(selection.head(), &buffer)
8916 .filter(|highlight| {
8917 highlight.start.excerpt_id == selection.head().excerpt_id
8918 && highlight.end.excerpt_id == selection.head().excerpt_id
8919 });
8920 buffer_highlights
8921 .next()
8922 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8923 })?
8924 };
8925 if let Some(rename_range) = rename_range {
8926 this.update(&mut cx, |this, cx| {
8927 let snapshot = cursor_buffer.read(cx).snapshot();
8928 let rename_buffer_range = rename_range.to_offset(&snapshot);
8929 let cursor_offset_in_rename_range =
8930 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8931 let cursor_offset_in_rename_range_end =
8932 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8933
8934 this.take_rename(false, cx);
8935 let buffer = this.buffer.read(cx).read(cx);
8936 let cursor_offset = selection.head().to_offset(&buffer);
8937 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8938 let rename_end = rename_start + rename_buffer_range.len();
8939 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8940 let mut old_highlight_id = None;
8941 let old_name: Arc<str> = buffer
8942 .chunks(rename_start..rename_end, true)
8943 .map(|chunk| {
8944 if old_highlight_id.is_none() {
8945 old_highlight_id = chunk.syntax_highlight_id;
8946 }
8947 chunk.text
8948 })
8949 .collect::<String>()
8950 .into();
8951
8952 drop(buffer);
8953
8954 // Position the selection in the rename editor so that it matches the current selection.
8955 this.show_local_selections = false;
8956 let rename_editor = cx.new_view(|cx| {
8957 let mut editor = Editor::single_line(cx);
8958 editor.buffer.update(cx, |buffer, cx| {
8959 buffer.edit([(0..0, old_name.clone())], None, cx)
8960 });
8961 let rename_selection_range = match cursor_offset_in_rename_range
8962 .cmp(&cursor_offset_in_rename_range_end)
8963 {
8964 Ordering::Equal => {
8965 editor.select_all(&SelectAll, cx);
8966 return editor;
8967 }
8968 Ordering::Less => {
8969 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8970 }
8971 Ordering::Greater => {
8972 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8973 }
8974 };
8975 if rename_selection_range.end > old_name.len() {
8976 editor.select_all(&SelectAll, cx);
8977 } else {
8978 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8979 s.select_ranges([rename_selection_range]);
8980 });
8981 }
8982 editor
8983 });
8984
8985 let write_highlights =
8986 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8987 let read_highlights =
8988 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8989 let ranges = write_highlights
8990 .iter()
8991 .flat_map(|(_, ranges)| ranges.iter())
8992 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8993 .cloned()
8994 .collect();
8995
8996 this.highlight_text::<Rename>(
8997 ranges,
8998 HighlightStyle {
8999 fade_out: Some(0.6),
9000 ..Default::default()
9001 },
9002 cx,
9003 );
9004 let rename_focus_handle = rename_editor.focus_handle(cx);
9005 cx.focus(&rename_focus_handle);
9006 let block_id = this.insert_blocks(
9007 [BlockProperties {
9008 style: BlockStyle::Flex,
9009 position: range.start,
9010 height: 1,
9011 render: Box::new({
9012 let rename_editor = rename_editor.clone();
9013 move |cx: &mut BlockContext| {
9014 let mut text_style = cx.editor_style.text.clone();
9015 if let Some(highlight_style) = old_highlight_id
9016 .and_then(|h| h.style(&cx.editor_style.syntax))
9017 {
9018 text_style = text_style.highlight(highlight_style);
9019 }
9020 div()
9021 .pl(cx.anchor_x)
9022 .child(EditorElement::new(
9023 &rename_editor,
9024 EditorStyle {
9025 background: cx.theme().system().transparent,
9026 local_player: cx.editor_style.local_player,
9027 text: text_style,
9028 scrollbar_width: cx.editor_style.scrollbar_width,
9029 syntax: cx.editor_style.syntax.clone(),
9030 status: cx.editor_style.status.clone(),
9031 inlay_hints_style: HighlightStyle {
9032 color: Some(cx.theme().status().hint),
9033 font_weight: Some(FontWeight::BOLD),
9034 ..HighlightStyle::default()
9035 },
9036 suggestions_style: HighlightStyle {
9037 color: Some(cx.theme().status().predictive),
9038 ..HighlightStyle::default()
9039 },
9040 },
9041 ))
9042 .into_any_element()
9043 }
9044 }),
9045 disposition: BlockDisposition::Below,
9046 }],
9047 Some(Autoscroll::fit()),
9048 cx,
9049 )[0];
9050 this.pending_rename = Some(RenameState {
9051 range,
9052 old_name,
9053 editor: rename_editor,
9054 block_id,
9055 });
9056 })?;
9057 }
9058
9059 Ok(())
9060 }))
9061 }
9062
9063 pub fn confirm_rename(
9064 &mut self,
9065 _: &ConfirmRename,
9066 cx: &mut ViewContext<Self>,
9067 ) -> Option<Task<Result<()>>> {
9068 let rename = self.take_rename(false, cx)?;
9069 let workspace = self.workspace()?;
9070 let (start_buffer, start) = self
9071 .buffer
9072 .read(cx)
9073 .text_anchor_for_position(rename.range.start, cx)?;
9074 let (end_buffer, end) = self
9075 .buffer
9076 .read(cx)
9077 .text_anchor_for_position(rename.range.end, cx)?;
9078 if start_buffer != end_buffer {
9079 return None;
9080 }
9081
9082 let buffer = start_buffer;
9083 let range = start..end;
9084 let old_name = rename.old_name;
9085 let new_name = rename.editor.read(cx).text(cx);
9086
9087 let rename = workspace
9088 .read(cx)
9089 .project()
9090 .clone()
9091 .update(cx, |project, cx| {
9092 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9093 });
9094 let workspace = workspace.downgrade();
9095
9096 Some(cx.spawn(|editor, mut cx| async move {
9097 let project_transaction = rename.await?;
9098 Self::open_project_transaction(
9099 &editor,
9100 workspace,
9101 project_transaction,
9102 format!("Rename: {} → {}", old_name, new_name),
9103 cx.clone(),
9104 )
9105 .await?;
9106
9107 editor.update(&mut cx, |editor, cx| {
9108 editor.refresh_document_highlights(cx);
9109 })?;
9110 Ok(())
9111 }))
9112 }
9113
9114 fn take_rename(
9115 &mut self,
9116 moving_cursor: bool,
9117 cx: &mut ViewContext<Self>,
9118 ) -> Option<RenameState> {
9119 let rename = self.pending_rename.take()?;
9120 if rename.editor.focus_handle(cx).is_focused(cx) {
9121 cx.focus(&self.focus_handle);
9122 }
9123
9124 self.remove_blocks(
9125 [rename.block_id].into_iter().collect(),
9126 Some(Autoscroll::fit()),
9127 cx,
9128 );
9129 self.clear_highlights::<Rename>(cx);
9130 self.show_local_selections = true;
9131
9132 if moving_cursor {
9133 let rename_editor = rename.editor.read(cx);
9134 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9135
9136 // Update the selection to match the position of the selection inside
9137 // the rename editor.
9138 let snapshot = self.buffer.read(cx).read(cx);
9139 let rename_range = rename.range.to_offset(&snapshot);
9140 let cursor_in_editor = snapshot
9141 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9142 .min(rename_range.end);
9143 drop(snapshot);
9144
9145 self.change_selections(None, cx, |s| {
9146 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9147 });
9148 } else {
9149 self.refresh_document_highlights(cx);
9150 }
9151
9152 Some(rename)
9153 }
9154
9155 pub fn pending_rename(&self) -> Option<&RenameState> {
9156 self.pending_rename.as_ref()
9157 }
9158
9159 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9160 let project = match &self.project {
9161 Some(project) => project.clone(),
9162 None => return None,
9163 };
9164
9165 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9166 }
9167
9168 fn perform_format(
9169 &mut self,
9170 project: Model<Project>,
9171 trigger: FormatTrigger,
9172 cx: &mut ViewContext<Self>,
9173 ) -> Task<Result<()>> {
9174 let buffer = self.buffer().clone();
9175 let mut buffers = buffer.read(cx).all_buffers();
9176 if trigger == FormatTrigger::Save {
9177 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9178 }
9179
9180 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9181 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9182
9183 cx.spawn(|_, mut cx| async move {
9184 let transaction = futures::select_biased! {
9185 () = timeout => {
9186 log::warn!("timed out waiting for formatting");
9187 None
9188 }
9189 transaction = format.log_err().fuse() => transaction,
9190 };
9191
9192 buffer
9193 .update(&mut cx, |buffer, cx| {
9194 if let Some(transaction) = transaction {
9195 if !buffer.is_singleton() {
9196 buffer.push_transaction(&transaction.0, cx);
9197 }
9198 }
9199
9200 cx.notify();
9201 })
9202 .ok();
9203
9204 Ok(())
9205 })
9206 }
9207
9208 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9209 if let Some(project) = self.project.clone() {
9210 self.buffer.update(cx, |multi_buffer, cx| {
9211 project.update(cx, |project, cx| {
9212 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9213 });
9214 })
9215 }
9216 }
9217
9218 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9219 cx.show_character_palette();
9220 }
9221
9222 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9223 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9224 let buffer = self.buffer.read(cx).snapshot(cx);
9225 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9226 let is_valid = buffer
9227 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9228 .any(|entry| {
9229 entry.diagnostic.is_primary
9230 && !entry.range.is_empty()
9231 && entry.range.start == primary_range_start
9232 && entry.diagnostic.message == active_diagnostics.primary_message
9233 });
9234
9235 if is_valid != active_diagnostics.is_valid {
9236 active_diagnostics.is_valid = is_valid;
9237 let mut new_styles = HashMap::default();
9238 for (block_id, diagnostic) in &active_diagnostics.blocks {
9239 new_styles.insert(
9240 *block_id,
9241 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9242 );
9243 }
9244 self.display_map
9245 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9246 }
9247 }
9248 }
9249
9250 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9251 self.dismiss_diagnostics(cx);
9252 let snapshot = self.snapshot(cx);
9253 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9254 let buffer = self.buffer.read(cx).snapshot(cx);
9255
9256 let mut primary_range = None;
9257 let mut primary_message = None;
9258 let mut group_end = Point::zero();
9259 let diagnostic_group = buffer
9260 .diagnostic_group::<MultiBufferPoint>(group_id)
9261 .filter_map(|entry| {
9262 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9263 && (entry.range.start.row == entry.range.end.row
9264 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9265 {
9266 return None;
9267 }
9268 if entry.range.end > group_end {
9269 group_end = entry.range.end;
9270 }
9271 if entry.diagnostic.is_primary {
9272 primary_range = Some(entry.range.clone());
9273 primary_message = Some(entry.diagnostic.message.clone());
9274 }
9275 Some(entry)
9276 })
9277 .collect::<Vec<_>>();
9278 let primary_range = primary_range?;
9279 let primary_message = primary_message?;
9280 let primary_range =
9281 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9282
9283 let blocks = display_map
9284 .insert_blocks(
9285 diagnostic_group.iter().map(|entry| {
9286 let diagnostic = entry.diagnostic.clone();
9287 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9288 BlockProperties {
9289 style: BlockStyle::Fixed,
9290 position: buffer.anchor_after(entry.range.start),
9291 height: message_height,
9292 render: diagnostic_block_renderer(diagnostic, true),
9293 disposition: BlockDisposition::Below,
9294 }
9295 }),
9296 cx,
9297 )
9298 .into_iter()
9299 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9300 .collect();
9301
9302 Some(ActiveDiagnosticGroup {
9303 primary_range,
9304 primary_message,
9305 group_id,
9306 blocks,
9307 is_valid: true,
9308 })
9309 });
9310 self.active_diagnostics.is_some()
9311 }
9312
9313 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9314 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9315 self.display_map.update(cx, |display_map, cx| {
9316 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9317 });
9318 cx.notify();
9319 }
9320 }
9321
9322 pub fn set_selections_from_remote(
9323 &mut self,
9324 selections: Vec<Selection<Anchor>>,
9325 pending_selection: Option<Selection<Anchor>>,
9326 cx: &mut ViewContext<Self>,
9327 ) {
9328 let old_cursor_position = self.selections.newest_anchor().head();
9329 self.selections.change_with(cx, |s| {
9330 s.select_anchors(selections);
9331 if let Some(pending_selection) = pending_selection {
9332 s.set_pending(pending_selection, SelectMode::Character);
9333 } else {
9334 s.clear_pending();
9335 }
9336 });
9337 self.selections_did_change(false, &old_cursor_position, true, cx);
9338 }
9339
9340 fn push_to_selection_history(&mut self) {
9341 self.selection_history.push(SelectionHistoryEntry {
9342 selections: self.selections.disjoint_anchors(),
9343 select_next_state: self.select_next_state.clone(),
9344 select_prev_state: self.select_prev_state.clone(),
9345 add_selections_state: self.add_selections_state.clone(),
9346 });
9347 }
9348
9349 pub fn transact(
9350 &mut self,
9351 cx: &mut ViewContext<Self>,
9352 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9353 ) -> Option<TransactionId> {
9354 self.start_transaction_at(Instant::now(), cx);
9355 update(self, cx);
9356 self.end_transaction_at(Instant::now(), cx)
9357 }
9358
9359 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9360 self.end_selection(cx);
9361 if let Some(tx_id) = self
9362 .buffer
9363 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9364 {
9365 self.selection_history
9366 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9367 cx.emit(EditorEvent::TransactionBegun {
9368 transaction_id: tx_id,
9369 })
9370 }
9371 }
9372
9373 fn end_transaction_at(
9374 &mut self,
9375 now: Instant,
9376 cx: &mut ViewContext<Self>,
9377 ) -> Option<TransactionId> {
9378 if let Some(tx_id) = self
9379 .buffer
9380 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9381 {
9382 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9383 *end_selections = Some(self.selections.disjoint_anchors());
9384 } else {
9385 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9386 }
9387
9388 cx.emit(EditorEvent::Edited);
9389 Some(tx_id)
9390 } else {
9391 None
9392 }
9393 }
9394
9395 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9396 let mut fold_ranges = Vec::new();
9397
9398 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9399
9400 let selections = self.selections.all_adjusted(cx);
9401 for selection in selections {
9402 let range = selection.range().sorted();
9403 let buffer_start_row = range.start.row;
9404
9405 for row in (0..=range.end.row).rev() {
9406 if let Some((foldable_range, fold_text)) =
9407 display_map.foldable_range(MultiBufferRow(row))
9408 {
9409 if foldable_range.end.row >= buffer_start_row {
9410 fold_ranges.push((foldable_range, fold_text));
9411 if row <= range.start.row {
9412 break;
9413 }
9414 }
9415 }
9416 }
9417 }
9418
9419 self.fold_ranges(fold_ranges, true, cx);
9420 }
9421
9422 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9423 let buffer_row = fold_at.buffer_row;
9424 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9425
9426 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9427 let autoscroll = self
9428 .selections
9429 .all::<Point>(cx)
9430 .iter()
9431 .any(|selection| fold_range.overlaps(&selection.range()));
9432
9433 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9434 }
9435 }
9436
9437 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9438 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9439 let buffer = &display_map.buffer_snapshot;
9440 let selections = self.selections.all::<Point>(cx);
9441 let ranges = selections
9442 .iter()
9443 .map(|s| {
9444 let range = s.display_range(&display_map).sorted();
9445 let mut start = range.start.to_point(&display_map);
9446 let mut end = range.end.to_point(&display_map);
9447 start.column = 0;
9448 end.column = buffer.line_len(MultiBufferRow(end.row));
9449 start..end
9450 })
9451 .collect::<Vec<_>>();
9452
9453 self.unfold_ranges(ranges, true, true, cx);
9454 }
9455
9456 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9457 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9458
9459 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9460 ..Point::new(
9461 unfold_at.buffer_row.0,
9462 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9463 );
9464
9465 let autoscroll = self
9466 .selections
9467 .all::<Point>(cx)
9468 .iter()
9469 .any(|selection| selection.range().overlaps(&intersection_range));
9470
9471 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9472 }
9473
9474 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9475 let selections = self.selections.all::<Point>(cx);
9476 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9477 let line_mode = self.selections.line_mode;
9478 let ranges = selections.into_iter().map(|s| {
9479 if line_mode {
9480 let start = Point::new(s.start.row, 0);
9481 let end = Point::new(
9482 s.end.row,
9483 display_map
9484 .buffer_snapshot
9485 .line_len(MultiBufferRow(s.end.row)),
9486 );
9487 (start..end, display_map.fold_placeholder.clone())
9488 } else {
9489 (s.start..s.end, display_map.fold_placeholder.clone())
9490 }
9491 });
9492 self.fold_ranges(ranges, true, cx);
9493 }
9494
9495 pub fn fold_ranges<T: ToOffset + Clone>(
9496 &mut self,
9497 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9498 auto_scroll: bool,
9499 cx: &mut ViewContext<Self>,
9500 ) {
9501 let mut fold_ranges = Vec::new();
9502 let mut buffers_affected = HashMap::default();
9503 let multi_buffer = self.buffer().read(cx);
9504 for (fold_range, fold_text) in ranges {
9505 if let Some((_, buffer, _)) =
9506 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9507 {
9508 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9509 };
9510 fold_ranges.push((fold_range, fold_text));
9511 }
9512
9513 let mut ranges = fold_ranges.into_iter().peekable();
9514 if ranges.peek().is_some() {
9515 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9516
9517 if auto_scroll {
9518 self.request_autoscroll(Autoscroll::fit(), cx);
9519 }
9520
9521 for buffer in buffers_affected.into_values() {
9522 self.sync_expanded_diff_hunks(buffer, cx);
9523 }
9524
9525 cx.notify();
9526
9527 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9528 // Clear diagnostics block when folding a range that contains it.
9529 let snapshot = self.snapshot(cx);
9530 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9531 drop(snapshot);
9532 self.active_diagnostics = Some(active_diagnostics);
9533 self.dismiss_diagnostics(cx);
9534 } else {
9535 self.active_diagnostics = Some(active_diagnostics);
9536 }
9537 }
9538
9539 self.scrollbar_marker_state.dirty = true;
9540 }
9541 }
9542
9543 pub fn unfold_ranges<T: ToOffset + Clone>(
9544 &mut self,
9545 ranges: impl IntoIterator<Item = Range<T>>,
9546 inclusive: bool,
9547 auto_scroll: bool,
9548 cx: &mut ViewContext<Self>,
9549 ) {
9550 let mut unfold_ranges = Vec::new();
9551 let mut buffers_affected = HashMap::default();
9552 let multi_buffer = self.buffer().read(cx);
9553 for range in ranges {
9554 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9555 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9556 };
9557 unfold_ranges.push(range);
9558 }
9559
9560 let mut ranges = unfold_ranges.into_iter().peekable();
9561 if ranges.peek().is_some() {
9562 self.display_map
9563 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9564 if auto_scroll {
9565 self.request_autoscroll(Autoscroll::fit(), cx);
9566 }
9567
9568 for buffer in buffers_affected.into_values() {
9569 self.sync_expanded_diff_hunks(buffer, cx);
9570 }
9571
9572 cx.notify();
9573 self.scrollbar_marker_state.dirty = true;
9574 self.active_indent_guides_state.dirty = true;
9575 }
9576 }
9577
9578 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9579 if hovered != self.gutter_hovered {
9580 self.gutter_hovered = hovered;
9581 cx.notify();
9582 }
9583 }
9584
9585 pub fn insert_blocks(
9586 &mut self,
9587 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9588 autoscroll: Option<Autoscroll>,
9589 cx: &mut ViewContext<Self>,
9590 ) -> Vec<BlockId> {
9591 let blocks = self
9592 .display_map
9593 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9594 if let Some(autoscroll) = autoscroll {
9595 self.request_autoscroll(autoscroll, cx);
9596 }
9597 blocks
9598 }
9599
9600 pub fn replace_blocks(
9601 &mut self,
9602 blocks: HashMap<BlockId, RenderBlock>,
9603 autoscroll: Option<Autoscroll>,
9604 cx: &mut ViewContext<Self>,
9605 ) {
9606 self.display_map
9607 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9608 if let Some(autoscroll) = autoscroll {
9609 self.request_autoscroll(autoscroll, cx);
9610 }
9611 }
9612
9613 pub fn remove_blocks(
9614 &mut self,
9615 block_ids: HashSet<BlockId>,
9616 autoscroll: Option<Autoscroll>,
9617 cx: &mut ViewContext<Self>,
9618 ) {
9619 self.display_map.update(cx, |display_map, cx| {
9620 display_map.remove_blocks(block_ids, cx)
9621 });
9622 if let Some(autoscroll) = autoscroll {
9623 self.request_autoscroll(autoscroll, cx);
9624 }
9625 }
9626
9627 pub fn insert_flaps(
9628 &mut self,
9629 flaps: impl IntoIterator<Item = Flap>,
9630 cx: &mut ViewContext<Self>,
9631 ) -> Vec<FlapId> {
9632 self.display_map
9633 .update(cx, |map, cx| map.insert_flaps(flaps, cx))
9634 }
9635
9636 pub fn remove_flaps(
9637 &mut self,
9638 ids: impl IntoIterator<Item = FlapId>,
9639 cx: &mut ViewContext<Self>,
9640 ) {
9641 self.display_map
9642 .update(cx, |map, cx| map.remove_flaps(ids, cx));
9643 }
9644
9645 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9646 self.display_map
9647 .update(cx, |map, cx| map.snapshot(cx))
9648 .longest_row()
9649 }
9650
9651 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9652 self.display_map
9653 .update(cx, |map, cx| map.snapshot(cx))
9654 .max_point()
9655 }
9656
9657 pub fn text(&self, cx: &AppContext) -> String {
9658 self.buffer.read(cx).read(cx).text()
9659 }
9660
9661 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9662 let text = self.text(cx);
9663 let text = text.trim();
9664
9665 if text.is_empty() {
9666 return None;
9667 }
9668
9669 Some(text.to_string())
9670 }
9671
9672 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9673 self.transact(cx, |this, cx| {
9674 this.buffer
9675 .read(cx)
9676 .as_singleton()
9677 .expect("you can only call set_text on editors for singleton buffers")
9678 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9679 });
9680 }
9681
9682 pub fn display_text(&self, cx: &mut AppContext) -> String {
9683 self.display_map
9684 .update(cx, |map, cx| map.snapshot(cx))
9685 .text()
9686 }
9687
9688 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9689 let mut wrap_guides = smallvec::smallvec![];
9690
9691 if self.show_wrap_guides == Some(false) {
9692 return wrap_guides;
9693 }
9694
9695 let settings = self.buffer.read(cx).settings_at(0, cx);
9696 if settings.show_wrap_guides {
9697 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9698 wrap_guides.push((soft_wrap as usize, true));
9699 }
9700 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9701 }
9702
9703 wrap_guides
9704 }
9705
9706 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9707 let settings = self.buffer.read(cx).settings_at(0, cx);
9708 let mode = self
9709 .soft_wrap_mode_override
9710 .unwrap_or_else(|| settings.soft_wrap);
9711 match mode {
9712 language_settings::SoftWrap::None => SoftWrap::None,
9713 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9714 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9715 language_settings::SoftWrap::PreferredLineLength => {
9716 SoftWrap::Column(settings.preferred_line_length)
9717 }
9718 }
9719 }
9720
9721 pub fn set_soft_wrap_mode(
9722 &mut self,
9723 mode: language_settings::SoftWrap,
9724 cx: &mut ViewContext<Self>,
9725 ) {
9726 self.soft_wrap_mode_override = Some(mode);
9727 cx.notify();
9728 }
9729
9730 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9731 let rem_size = cx.rem_size();
9732 self.display_map.update(cx, |map, cx| {
9733 map.set_font(
9734 style.text.font(),
9735 style.text.font_size.to_pixels(rem_size),
9736 cx,
9737 )
9738 });
9739 self.style = Some(style);
9740 }
9741
9742 pub fn style(&self) -> Option<&EditorStyle> {
9743 self.style.as_ref()
9744 }
9745
9746 // Called by the element. This method is not designed to be called outside of the editor
9747 // element's layout code because it does not notify when rewrapping is computed synchronously.
9748 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9749 self.display_map
9750 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9751 }
9752
9753 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9754 if self.soft_wrap_mode_override.is_some() {
9755 self.soft_wrap_mode_override.take();
9756 } else {
9757 let soft_wrap = match self.soft_wrap_mode(cx) {
9758 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9759 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9760 language_settings::SoftWrap::PreferLine
9761 }
9762 };
9763 self.soft_wrap_mode_override = Some(soft_wrap);
9764 }
9765 cx.notify();
9766 }
9767
9768 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
9769 let currently_enabled = self.should_show_indent_guides(cx);
9770 self.show_indent_guides = Some(!currently_enabled);
9771 cx.notify();
9772 }
9773
9774 fn should_show_indent_guides(&self, cx: &mut ViewContext<Self>) -> bool {
9775 self.show_indent_guides.unwrap_or_else(|| {
9776 self.buffer
9777 .read(cx)
9778 .settings_at(0, cx)
9779 .indent_guides
9780 .enabled
9781 })
9782 }
9783
9784 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9785 let mut editor_settings = EditorSettings::get_global(cx).clone();
9786 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9787 EditorSettings::override_global(editor_settings, cx);
9788 }
9789
9790 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9791 self.show_gutter = show_gutter;
9792 cx.notify();
9793 }
9794
9795 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
9796 self.show_line_numbers = Some(show_line_numbers);
9797 cx.notify();
9798 }
9799
9800 pub fn set_show_git_diff_gutter(
9801 &mut self,
9802 show_git_diff_gutter: bool,
9803 cx: &mut ViewContext<Self>,
9804 ) {
9805 self.show_git_diff_gutter = Some(show_git_diff_gutter);
9806 cx.notify();
9807 }
9808
9809 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
9810 self.show_code_actions = Some(show_code_actions);
9811 cx.notify();
9812 }
9813
9814 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
9815 self.show_wrap_guides = Some(show_wrap_guides);
9816 cx.notify();
9817 }
9818
9819 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
9820 self.show_indent_guides = Some(show_indent_guides);
9821 cx.notify();
9822 }
9823
9824 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9825 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9826 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9827 cx.reveal_path(&file.abs_path(cx));
9828 }
9829 }
9830 }
9831
9832 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9833 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9834 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9835 if let Some(path) = file.abs_path(cx).to_str() {
9836 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9837 }
9838 }
9839 }
9840 }
9841
9842 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9843 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9844 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9845 if let Some(path) = file.path().to_str() {
9846 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9847 }
9848 }
9849 }
9850 }
9851
9852 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9853 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9854
9855 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9856 self.start_git_blame(true, cx);
9857 }
9858
9859 cx.notify();
9860 }
9861
9862 pub fn toggle_git_blame_inline(
9863 &mut self,
9864 _: &ToggleGitBlameInline,
9865 cx: &mut ViewContext<Self>,
9866 ) {
9867 self.toggle_git_blame_inline_internal(true, cx);
9868 cx.notify();
9869 }
9870
9871 pub fn git_blame_inline_enabled(&self) -> bool {
9872 self.git_blame_inline_enabled
9873 }
9874
9875 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9876 if let Some(project) = self.project.as_ref() {
9877 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9878 return;
9879 };
9880
9881 if buffer.read(cx).file().is_none() {
9882 return;
9883 }
9884
9885 let focused = self.focus_handle(cx).contains_focused(cx);
9886
9887 let project = project.clone();
9888 let blame =
9889 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9890 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9891 self.blame = Some(blame);
9892 }
9893 }
9894
9895 fn toggle_git_blame_inline_internal(
9896 &mut self,
9897 user_triggered: bool,
9898 cx: &mut ViewContext<Self>,
9899 ) {
9900 if self.git_blame_inline_enabled {
9901 self.git_blame_inline_enabled = false;
9902 self.show_git_blame_inline = false;
9903 self.show_git_blame_inline_delay_task.take();
9904 } else {
9905 self.git_blame_inline_enabled = true;
9906 self.start_git_blame_inline(user_triggered, cx);
9907 }
9908
9909 cx.notify();
9910 }
9911
9912 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9913 self.start_git_blame(user_triggered, cx);
9914
9915 if ProjectSettings::get_global(cx)
9916 .git
9917 .inline_blame_delay()
9918 .is_some()
9919 {
9920 self.start_inline_blame_timer(cx);
9921 } else {
9922 self.show_git_blame_inline = true
9923 }
9924 }
9925
9926 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9927 self.blame.as_ref()
9928 }
9929
9930 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9931 self.show_git_blame_gutter && self.has_blame_entries(cx)
9932 }
9933
9934 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9935 self.show_git_blame_inline
9936 && self.focus_handle.is_focused(cx)
9937 && !self.newest_selection_head_on_empty_line(cx)
9938 && self.has_blame_entries(cx)
9939 }
9940
9941 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9942 self.blame()
9943 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9944 }
9945
9946 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9947 let cursor_anchor = self.selections.newest_anchor().head();
9948
9949 let snapshot = self.buffer.read(cx).snapshot(cx);
9950 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9951
9952 snapshot.line_len(buffer_row) == 0
9953 }
9954
9955 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9956 let (path, repo) = maybe!({
9957 let project_handle = self.project.as_ref()?.clone();
9958 let project = project_handle.read(cx);
9959 let buffer = self.buffer().read(cx).as_singleton()?;
9960 let path = buffer
9961 .read(cx)
9962 .file()?
9963 .as_local()?
9964 .path()
9965 .to_str()?
9966 .to_string();
9967 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9968 Some((path, repo))
9969 })
9970 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9971
9972 const REMOTE_NAME: &str = "origin";
9973 let origin_url = repo
9974 .lock()
9975 .remote_url(REMOTE_NAME)
9976 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9977 let sha = repo
9978 .lock()
9979 .head_sha()
9980 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9981 let selections = self.selections.all::<Point>(cx);
9982 let selection = selections.iter().peekable().next();
9983
9984 let (provider, remote) =
9985 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9986 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9987
9988 Ok(provider.build_permalink(
9989 remote,
9990 BuildPermalinkParams {
9991 sha: &sha,
9992 path: &path,
9993 selection: selection.map(|selection| {
9994 let range = selection.range();
9995 let start = range.start.row;
9996 let end = range.end.row;
9997 start..end
9998 }),
9999 },
10000 ))
10001 }
10002
10003 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10004 let permalink = self.get_permalink_to_line(cx);
10005
10006 match permalink {
10007 Ok(permalink) => {
10008 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10009 }
10010 Err(err) => {
10011 let message = format!("Failed to copy permalink: {err}");
10012
10013 Err::<(), anyhow::Error>(err).log_err();
10014
10015 if let Some(workspace) = self.workspace() {
10016 workspace.update(cx, |workspace, cx| {
10017 struct CopyPermalinkToLine;
10018
10019 workspace.show_toast(
10020 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10021 cx,
10022 )
10023 })
10024 }
10025 }
10026 }
10027 }
10028
10029 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10030 let permalink = self.get_permalink_to_line(cx);
10031
10032 match permalink {
10033 Ok(permalink) => {
10034 cx.open_url(permalink.as_ref());
10035 }
10036 Err(err) => {
10037 let message = format!("Failed to open permalink: {err}");
10038
10039 Err::<(), anyhow::Error>(err).log_err();
10040
10041 if let Some(workspace) = self.workspace() {
10042 workspace.update(cx, |workspace, cx| {
10043 struct OpenPermalinkToLine;
10044
10045 workspace.show_toast(
10046 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10047 cx,
10048 )
10049 })
10050 }
10051 }
10052 }
10053 }
10054
10055 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10056 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10057 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10058 pub fn highlight_rows<T: 'static>(
10059 &mut self,
10060 rows: RangeInclusive<Anchor>,
10061 color: Option<Hsla>,
10062 should_autoscroll: bool,
10063 cx: &mut ViewContext<Self>,
10064 ) {
10065 let snapshot = self.buffer().read(cx).snapshot(cx);
10066 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10067 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10068 highlight
10069 .range
10070 .start()
10071 .cmp(&rows.start(), &snapshot)
10072 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10073 });
10074 match (color, existing_highlight_index) {
10075 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10076 ix,
10077 RowHighlight {
10078 index: post_inc(&mut self.highlight_order),
10079 range: rows,
10080 should_autoscroll,
10081 color,
10082 },
10083 ),
10084 (None, Ok(i)) => {
10085 row_highlights.remove(i);
10086 }
10087 }
10088 }
10089
10090 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10091 pub fn clear_row_highlights<T: 'static>(&mut self) {
10092 self.highlighted_rows.remove(&TypeId::of::<T>());
10093 }
10094
10095 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10096 pub fn highlighted_rows<T: 'static>(
10097 &self,
10098 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10099 Some(
10100 self.highlighted_rows
10101 .get(&TypeId::of::<T>())?
10102 .iter()
10103 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10104 )
10105 }
10106
10107 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10108 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10109 /// Allows to ignore certain kinds of highlights.
10110 pub fn highlighted_display_rows(
10111 &mut self,
10112 cx: &mut WindowContext,
10113 ) -> BTreeMap<DisplayRow, Hsla> {
10114 let snapshot = self.snapshot(cx);
10115 let mut used_highlight_orders = HashMap::default();
10116 self.highlighted_rows
10117 .iter()
10118 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10119 .fold(
10120 BTreeMap::<DisplayRow, Hsla>::new(),
10121 |mut unique_rows, highlight| {
10122 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10123 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10124 for row in start_row.0..=end_row.0 {
10125 let used_index =
10126 used_highlight_orders.entry(row).or_insert(highlight.index);
10127 if highlight.index >= *used_index {
10128 *used_index = highlight.index;
10129 match highlight.color {
10130 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10131 None => unique_rows.remove(&DisplayRow(row)),
10132 };
10133 }
10134 }
10135 unique_rows
10136 },
10137 )
10138 }
10139
10140 pub fn highlighted_display_row_for_autoscroll(
10141 &self,
10142 snapshot: &DisplaySnapshot,
10143 ) -> Option<DisplayRow> {
10144 self.highlighted_rows
10145 .values()
10146 .flat_map(|highlighted_rows| highlighted_rows.iter())
10147 .filter_map(|highlight| {
10148 if highlight.color.is_none() || !highlight.should_autoscroll {
10149 return None;
10150 }
10151 Some(highlight.range.start().to_display_point(&snapshot).row())
10152 })
10153 .min()
10154 }
10155
10156 pub fn set_search_within_ranges(
10157 &mut self,
10158 ranges: &[Range<Anchor>],
10159 cx: &mut ViewContext<Self>,
10160 ) {
10161 self.highlight_background::<SearchWithinRange>(
10162 ranges,
10163 |colors| colors.editor_document_highlight_read_background,
10164 cx,
10165 )
10166 }
10167
10168 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10169 self.clear_background_highlights::<SearchWithinRange>(cx);
10170 }
10171
10172 pub fn highlight_background<T: 'static>(
10173 &mut self,
10174 ranges: &[Range<Anchor>],
10175 color_fetcher: fn(&ThemeColors) -> Hsla,
10176 cx: &mut ViewContext<Self>,
10177 ) {
10178 let snapshot = self.snapshot(cx);
10179 // this is to try and catch a panic sooner
10180 for range in ranges {
10181 snapshot
10182 .buffer_snapshot
10183 .summary_for_anchor::<usize>(&range.start);
10184 snapshot
10185 .buffer_snapshot
10186 .summary_for_anchor::<usize>(&range.end);
10187 }
10188
10189 self.background_highlights
10190 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10191 self.scrollbar_marker_state.dirty = true;
10192 cx.notify();
10193 }
10194
10195 pub fn clear_background_highlights<T: 'static>(
10196 &mut self,
10197 cx: &mut ViewContext<Self>,
10198 ) -> Option<BackgroundHighlight> {
10199 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10200 if !text_highlights.1.is_empty() {
10201 self.scrollbar_marker_state.dirty = true;
10202 cx.notify();
10203 }
10204 Some(text_highlights)
10205 }
10206
10207 #[cfg(feature = "test-support")]
10208 pub fn all_text_background_highlights(
10209 &mut self,
10210 cx: &mut ViewContext<Self>,
10211 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10212 let snapshot = self.snapshot(cx);
10213 let buffer = &snapshot.buffer_snapshot;
10214 let start = buffer.anchor_before(0);
10215 let end = buffer.anchor_after(buffer.len());
10216 let theme = cx.theme().colors();
10217 self.background_highlights_in_range(start..end, &snapshot, theme)
10218 }
10219
10220 fn document_highlights_for_position<'a>(
10221 &'a self,
10222 position: Anchor,
10223 buffer: &'a MultiBufferSnapshot,
10224 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10225 let read_highlights = self
10226 .background_highlights
10227 .get(&TypeId::of::<DocumentHighlightRead>())
10228 .map(|h| &h.1);
10229 let write_highlights = self
10230 .background_highlights
10231 .get(&TypeId::of::<DocumentHighlightWrite>())
10232 .map(|h| &h.1);
10233 let left_position = position.bias_left(buffer);
10234 let right_position = position.bias_right(buffer);
10235 read_highlights
10236 .into_iter()
10237 .chain(write_highlights)
10238 .flat_map(move |ranges| {
10239 let start_ix = match ranges.binary_search_by(|probe| {
10240 let cmp = probe.end.cmp(&left_position, buffer);
10241 if cmp.is_ge() {
10242 Ordering::Greater
10243 } else {
10244 Ordering::Less
10245 }
10246 }) {
10247 Ok(i) | Err(i) => i,
10248 };
10249
10250 ranges[start_ix..]
10251 .iter()
10252 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10253 })
10254 }
10255
10256 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10257 self.background_highlights
10258 .get(&TypeId::of::<T>())
10259 .map_or(false, |(_, highlights)| !highlights.is_empty())
10260 }
10261
10262 pub fn background_highlights_in_range(
10263 &self,
10264 search_range: Range<Anchor>,
10265 display_snapshot: &DisplaySnapshot,
10266 theme: &ThemeColors,
10267 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10268 let mut results = Vec::new();
10269 for (color_fetcher, ranges) in self.background_highlights.values() {
10270 let color = color_fetcher(theme);
10271 let start_ix = match ranges.binary_search_by(|probe| {
10272 let cmp = probe
10273 .end
10274 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10275 if cmp.is_gt() {
10276 Ordering::Greater
10277 } else {
10278 Ordering::Less
10279 }
10280 }) {
10281 Ok(i) | Err(i) => i,
10282 };
10283 for range in &ranges[start_ix..] {
10284 if range
10285 .start
10286 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10287 .is_ge()
10288 {
10289 break;
10290 }
10291
10292 let start = range.start.to_display_point(&display_snapshot);
10293 let end = range.end.to_display_point(&display_snapshot);
10294 results.push((start..end, color))
10295 }
10296 }
10297 results
10298 }
10299
10300 pub fn background_highlight_row_ranges<T: 'static>(
10301 &self,
10302 search_range: Range<Anchor>,
10303 display_snapshot: &DisplaySnapshot,
10304 count: usize,
10305 ) -> Vec<RangeInclusive<DisplayPoint>> {
10306 let mut results = Vec::new();
10307 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10308 return vec![];
10309 };
10310
10311 let start_ix = match ranges.binary_search_by(|probe| {
10312 let cmp = probe
10313 .end
10314 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10315 if cmp.is_gt() {
10316 Ordering::Greater
10317 } else {
10318 Ordering::Less
10319 }
10320 }) {
10321 Ok(i) | Err(i) => i,
10322 };
10323 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10324 if let (Some(start_display), Some(end_display)) = (start, end) {
10325 results.push(
10326 start_display.to_display_point(display_snapshot)
10327 ..=end_display.to_display_point(display_snapshot),
10328 );
10329 }
10330 };
10331 let mut start_row: Option<Point> = None;
10332 let mut end_row: Option<Point> = None;
10333 if ranges.len() > count {
10334 return Vec::new();
10335 }
10336 for range in &ranges[start_ix..] {
10337 if range
10338 .start
10339 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10340 .is_ge()
10341 {
10342 break;
10343 }
10344 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10345 if let Some(current_row) = &end_row {
10346 if end.row == current_row.row {
10347 continue;
10348 }
10349 }
10350 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10351 if start_row.is_none() {
10352 assert_eq!(end_row, None);
10353 start_row = Some(start);
10354 end_row = Some(end);
10355 continue;
10356 }
10357 if let Some(current_end) = end_row.as_mut() {
10358 if start.row > current_end.row + 1 {
10359 push_region(start_row, end_row);
10360 start_row = Some(start);
10361 end_row = Some(end);
10362 } else {
10363 // Merge two hunks.
10364 *current_end = end;
10365 }
10366 } else {
10367 unreachable!();
10368 }
10369 }
10370 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10371 push_region(start_row, end_row);
10372 results
10373 }
10374
10375 /// Get the text ranges corresponding to the redaction query
10376 pub fn redacted_ranges(
10377 &self,
10378 search_range: Range<Anchor>,
10379 display_snapshot: &DisplaySnapshot,
10380 cx: &WindowContext,
10381 ) -> Vec<Range<DisplayPoint>> {
10382 display_snapshot
10383 .buffer_snapshot
10384 .redacted_ranges(search_range, |file| {
10385 if let Some(file) = file {
10386 file.is_private()
10387 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10388 } else {
10389 false
10390 }
10391 })
10392 .map(|range| {
10393 range.start.to_display_point(display_snapshot)
10394 ..range.end.to_display_point(display_snapshot)
10395 })
10396 .collect()
10397 }
10398
10399 pub fn highlight_text<T: 'static>(
10400 &mut self,
10401 ranges: Vec<Range<Anchor>>,
10402 style: HighlightStyle,
10403 cx: &mut ViewContext<Self>,
10404 ) {
10405 self.display_map.update(cx, |map, _| {
10406 map.highlight_text(TypeId::of::<T>(), ranges, style)
10407 });
10408 cx.notify();
10409 }
10410
10411 pub(crate) fn highlight_inlays<T: 'static>(
10412 &mut self,
10413 highlights: Vec<InlayHighlight>,
10414 style: HighlightStyle,
10415 cx: &mut ViewContext<Self>,
10416 ) {
10417 self.display_map.update(cx, |map, _| {
10418 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10419 });
10420 cx.notify();
10421 }
10422
10423 pub fn text_highlights<'a, T: 'static>(
10424 &'a self,
10425 cx: &'a AppContext,
10426 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10427 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10428 }
10429
10430 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10431 let cleared = self
10432 .display_map
10433 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10434 if cleared {
10435 cx.notify();
10436 }
10437 }
10438
10439 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10440 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10441 && self.focus_handle.is_focused(cx)
10442 }
10443
10444 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10445 cx.notify();
10446 }
10447
10448 fn on_buffer_event(
10449 &mut self,
10450 multibuffer: Model<MultiBuffer>,
10451 event: &multi_buffer::Event,
10452 cx: &mut ViewContext<Self>,
10453 ) {
10454 match event {
10455 multi_buffer::Event::Edited {
10456 singleton_buffer_edited,
10457 } => {
10458 self.scrollbar_marker_state.dirty = true;
10459 self.active_indent_guides_state.dirty = true;
10460 self.refresh_active_diagnostics(cx);
10461 self.refresh_code_actions(cx);
10462 if self.has_active_inline_completion(cx) {
10463 self.update_visible_inline_completion(cx);
10464 }
10465 cx.emit(EditorEvent::BufferEdited);
10466 cx.emit(SearchEvent::MatchesInvalidated);
10467
10468 if *singleton_buffer_edited {
10469 if let Some(project) = &self.project {
10470 let project = project.read(cx);
10471 let languages_affected = multibuffer
10472 .read(cx)
10473 .all_buffers()
10474 .into_iter()
10475 .filter_map(|buffer| {
10476 let buffer = buffer.read(cx);
10477 let language = buffer.language()?;
10478 if project.is_local()
10479 && project.language_servers_for_buffer(buffer, cx).count() == 0
10480 {
10481 None
10482 } else {
10483 Some(language)
10484 }
10485 })
10486 .cloned()
10487 .collect::<HashSet<_>>();
10488 if !languages_affected.is_empty() {
10489 self.refresh_inlay_hints(
10490 InlayHintRefreshReason::BufferEdited(languages_affected),
10491 cx,
10492 );
10493 }
10494 }
10495 }
10496
10497 let Some(project) = &self.project else { return };
10498 let telemetry = project.read(cx).client().telemetry().clone();
10499 telemetry.log_edit_event("editor");
10500 }
10501 multi_buffer::Event::ExcerptsAdded {
10502 buffer,
10503 predecessor,
10504 excerpts,
10505 } => {
10506 self.tasks_update_task = Some(self.refresh_runnables(cx));
10507 cx.emit(EditorEvent::ExcerptsAdded {
10508 buffer: buffer.clone(),
10509 predecessor: *predecessor,
10510 excerpts: excerpts.clone(),
10511 });
10512 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10513 }
10514 multi_buffer::Event::ExcerptsRemoved { ids } => {
10515 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10516 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10517 }
10518 multi_buffer::Event::Reparsed => {
10519 self.tasks_update_task = Some(self.refresh_runnables(cx));
10520
10521 cx.emit(EditorEvent::Reparsed);
10522 }
10523 multi_buffer::Event::LanguageChanged => {
10524 cx.emit(EditorEvent::Reparsed);
10525 cx.notify();
10526 }
10527 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10528 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10529 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10530 cx.emit(EditorEvent::TitleChanged)
10531 }
10532 multi_buffer::Event::DiffBaseChanged => {
10533 self.scrollbar_marker_state.dirty = true;
10534 cx.emit(EditorEvent::DiffBaseChanged);
10535 cx.notify();
10536 }
10537 multi_buffer::Event::DiffUpdated { buffer } => {
10538 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10539 cx.notify();
10540 }
10541 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10542 multi_buffer::Event::DiagnosticsUpdated => {
10543 self.refresh_active_diagnostics(cx);
10544 self.scrollbar_marker_state.dirty = true;
10545 cx.notify();
10546 }
10547 _ => {}
10548 };
10549 }
10550
10551 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10552 cx.notify();
10553 }
10554
10555 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10556 self.refresh_inline_completion(true, cx);
10557 self.refresh_inlay_hints(
10558 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10559 self.selections.newest_anchor().head(),
10560 &self.buffer.read(cx).snapshot(cx),
10561 cx,
10562 )),
10563 cx,
10564 );
10565 let editor_settings = EditorSettings::get_global(cx);
10566 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10567 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10568 self.current_line_highlight = editor_settings.current_line_highlight;
10569
10570 if self.mode == EditorMode::Full {
10571 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10572 if self.git_blame_inline_enabled != inline_blame_enabled {
10573 self.toggle_git_blame_inline_internal(false, cx);
10574 }
10575 }
10576
10577 cx.notify();
10578 }
10579
10580 pub fn set_searchable(&mut self, searchable: bool) {
10581 self.searchable = searchable;
10582 }
10583
10584 pub fn searchable(&self) -> bool {
10585 self.searchable
10586 }
10587
10588 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10589 self.open_excerpts_common(true, cx)
10590 }
10591
10592 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10593 self.open_excerpts_common(false, cx)
10594 }
10595
10596 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10597 let buffer = self.buffer.read(cx);
10598 if buffer.is_singleton() {
10599 cx.propagate();
10600 return;
10601 }
10602
10603 let Some(workspace) = self.workspace() else {
10604 cx.propagate();
10605 return;
10606 };
10607
10608 let mut new_selections_by_buffer = HashMap::default();
10609 for selection in self.selections.all::<usize>(cx) {
10610 for (buffer, mut range, _) in
10611 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10612 {
10613 if selection.reversed {
10614 mem::swap(&mut range.start, &mut range.end);
10615 }
10616 new_selections_by_buffer
10617 .entry(buffer)
10618 .or_insert(Vec::new())
10619 .push(range)
10620 }
10621 }
10622
10623 // We defer the pane interaction because we ourselves are a workspace item
10624 // and activating a new item causes the pane to call a method on us reentrantly,
10625 // which panics if we're on the stack.
10626 cx.window_context().defer(move |cx| {
10627 workspace.update(cx, |workspace, cx| {
10628 let pane = if split {
10629 workspace.adjacent_pane(cx)
10630 } else {
10631 workspace.active_pane().clone()
10632 };
10633
10634 for (buffer, ranges) in new_selections_by_buffer {
10635 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10636 editor.update(cx, |editor, cx| {
10637 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10638 s.select_ranges(ranges);
10639 });
10640 });
10641 }
10642 })
10643 });
10644 }
10645
10646 fn jump(
10647 &mut self,
10648 path: ProjectPath,
10649 position: Point,
10650 anchor: language::Anchor,
10651 offset_from_top: u32,
10652 cx: &mut ViewContext<Self>,
10653 ) {
10654 let workspace = self.workspace();
10655 cx.spawn(|_, mut cx| async move {
10656 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10657 let editor = workspace.update(&mut cx, |workspace, cx| {
10658 // Reset the preview item id before opening the new item
10659 workspace.active_pane().update(cx, |pane, cx| {
10660 pane.set_preview_item_id(None, cx);
10661 });
10662 workspace.open_path_preview(path, None, true, true, cx)
10663 })?;
10664 let editor = editor
10665 .await?
10666 .downcast::<Editor>()
10667 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10668 .downgrade();
10669 editor.update(&mut cx, |editor, cx| {
10670 let buffer = editor
10671 .buffer()
10672 .read(cx)
10673 .as_singleton()
10674 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10675 let buffer = buffer.read(cx);
10676 let cursor = if buffer.can_resolve(&anchor) {
10677 language::ToPoint::to_point(&anchor, buffer)
10678 } else {
10679 buffer.clip_point(position, Bias::Left)
10680 };
10681
10682 let nav_history = editor.nav_history.take();
10683 editor.change_selections(
10684 Some(Autoscroll::top_relative(offset_from_top as usize)),
10685 cx,
10686 |s| {
10687 s.select_ranges([cursor..cursor]);
10688 },
10689 );
10690 editor.nav_history = nav_history;
10691
10692 anyhow::Ok(())
10693 })??;
10694
10695 anyhow::Ok(())
10696 })
10697 .detach_and_log_err(cx);
10698 }
10699
10700 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10701 let snapshot = self.buffer.read(cx).read(cx);
10702 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10703 Some(
10704 ranges
10705 .iter()
10706 .map(move |range| {
10707 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10708 })
10709 .collect(),
10710 )
10711 }
10712
10713 fn selection_replacement_ranges(
10714 &self,
10715 range: Range<OffsetUtf16>,
10716 cx: &AppContext,
10717 ) -> Vec<Range<OffsetUtf16>> {
10718 let selections = self.selections.all::<OffsetUtf16>(cx);
10719 let newest_selection = selections
10720 .iter()
10721 .max_by_key(|selection| selection.id)
10722 .unwrap();
10723 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10724 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10725 let snapshot = self.buffer.read(cx).read(cx);
10726 selections
10727 .into_iter()
10728 .map(|mut selection| {
10729 selection.start.0 =
10730 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10731 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10732 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10733 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10734 })
10735 .collect()
10736 }
10737
10738 fn report_editor_event(
10739 &self,
10740 operation: &'static str,
10741 file_extension: Option<String>,
10742 cx: &AppContext,
10743 ) {
10744 if cfg!(any(test, feature = "test-support")) {
10745 return;
10746 }
10747
10748 let Some(project) = &self.project else { return };
10749
10750 // If None, we are in a file without an extension
10751 let file = self
10752 .buffer
10753 .read(cx)
10754 .as_singleton()
10755 .and_then(|b| b.read(cx).file());
10756 let file_extension = file_extension.or(file
10757 .as_ref()
10758 .and_then(|file| Path::new(file.file_name(cx)).extension())
10759 .and_then(|e| e.to_str())
10760 .map(|a| a.to_string()));
10761
10762 let vim_mode = cx
10763 .global::<SettingsStore>()
10764 .raw_user_settings()
10765 .get("vim_mode")
10766 == Some(&serde_json::Value::Bool(true));
10767
10768 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10769 == language::language_settings::InlineCompletionProvider::Copilot;
10770 let copilot_enabled_for_language = self
10771 .buffer
10772 .read(cx)
10773 .settings_at(0, cx)
10774 .show_inline_completions;
10775
10776 let telemetry = project.read(cx).client().telemetry().clone();
10777 telemetry.report_editor_event(
10778 file_extension,
10779 vim_mode,
10780 operation,
10781 copilot_enabled,
10782 copilot_enabled_for_language,
10783 )
10784 }
10785
10786 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10787 /// with each line being an array of {text, highlight} objects.
10788 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10789 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10790 return;
10791 };
10792
10793 #[derive(Serialize)]
10794 struct Chunk<'a> {
10795 text: String,
10796 highlight: Option<&'a str>,
10797 }
10798
10799 let snapshot = buffer.read(cx).snapshot();
10800 let range = self
10801 .selected_text_range(cx)
10802 .and_then(|selected_range| {
10803 if selected_range.is_empty() {
10804 None
10805 } else {
10806 Some(selected_range)
10807 }
10808 })
10809 .unwrap_or_else(|| 0..snapshot.len());
10810
10811 let chunks = snapshot.chunks(range, true);
10812 let mut lines = Vec::new();
10813 let mut line: VecDeque<Chunk> = VecDeque::new();
10814
10815 let Some(style) = self.style.as_ref() else {
10816 return;
10817 };
10818
10819 for chunk in chunks {
10820 let highlight = chunk
10821 .syntax_highlight_id
10822 .and_then(|id| id.name(&style.syntax));
10823 let mut chunk_lines = chunk.text.split('\n').peekable();
10824 while let Some(text) = chunk_lines.next() {
10825 let mut merged_with_last_token = false;
10826 if let Some(last_token) = line.back_mut() {
10827 if last_token.highlight == highlight {
10828 last_token.text.push_str(text);
10829 merged_with_last_token = true;
10830 }
10831 }
10832
10833 if !merged_with_last_token {
10834 line.push_back(Chunk {
10835 text: text.into(),
10836 highlight,
10837 });
10838 }
10839
10840 if chunk_lines.peek().is_some() {
10841 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10842 line.pop_front();
10843 }
10844 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10845 line.pop_back();
10846 }
10847
10848 lines.push(mem::take(&mut line));
10849 }
10850 }
10851 }
10852
10853 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10854 return;
10855 };
10856 cx.write_to_clipboard(ClipboardItem::new(lines));
10857 }
10858
10859 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10860 &self.inlay_hint_cache
10861 }
10862
10863 pub fn replay_insert_event(
10864 &mut self,
10865 text: &str,
10866 relative_utf16_range: Option<Range<isize>>,
10867 cx: &mut ViewContext<Self>,
10868 ) {
10869 if !self.input_enabled {
10870 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10871 return;
10872 }
10873 if let Some(relative_utf16_range) = relative_utf16_range {
10874 let selections = self.selections.all::<OffsetUtf16>(cx);
10875 self.change_selections(None, cx, |s| {
10876 let new_ranges = selections.into_iter().map(|range| {
10877 let start = OffsetUtf16(
10878 range
10879 .head()
10880 .0
10881 .saturating_add_signed(relative_utf16_range.start),
10882 );
10883 let end = OffsetUtf16(
10884 range
10885 .head()
10886 .0
10887 .saturating_add_signed(relative_utf16_range.end),
10888 );
10889 start..end
10890 });
10891 s.select_ranges(new_ranges);
10892 });
10893 }
10894
10895 self.handle_input(text, cx);
10896 }
10897
10898 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10899 let Some(project) = self.project.as_ref() else {
10900 return false;
10901 };
10902 let project = project.read(cx);
10903
10904 let mut supports = false;
10905 self.buffer().read(cx).for_each_buffer(|buffer| {
10906 if !supports {
10907 supports = project
10908 .language_servers_for_buffer(buffer.read(cx), cx)
10909 .any(
10910 |(_, server)| match server.capabilities().inlay_hint_provider {
10911 Some(lsp::OneOf::Left(enabled)) => enabled,
10912 Some(lsp::OneOf::Right(_)) => true,
10913 None => false,
10914 },
10915 )
10916 }
10917 });
10918 supports
10919 }
10920
10921 pub fn focus(&self, cx: &mut WindowContext) {
10922 cx.focus(&self.focus_handle)
10923 }
10924
10925 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10926 self.focus_handle.is_focused(cx)
10927 }
10928
10929 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10930 cx.emit(EditorEvent::Focused);
10931 if let Some(rename) = self.pending_rename.as_ref() {
10932 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10933 cx.focus(&rename_editor_focus_handle);
10934 } else {
10935 if let Some(blame) = self.blame.as_ref() {
10936 blame.update(cx, GitBlame::focus)
10937 }
10938
10939 self.blink_manager.update(cx, BlinkManager::enable);
10940 self.show_cursor_names(cx);
10941 self.buffer.update(cx, |buffer, cx| {
10942 buffer.finalize_last_transaction(cx);
10943 if self.leader_peer_id.is_none() {
10944 buffer.set_active_selections(
10945 &self.selections.disjoint_anchors(),
10946 self.selections.line_mode,
10947 self.cursor_shape,
10948 cx,
10949 );
10950 }
10951 });
10952 }
10953 }
10954
10955 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10956 self.blink_manager.update(cx, BlinkManager::disable);
10957 self.buffer
10958 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10959
10960 if let Some(blame) = self.blame.as_ref() {
10961 blame.update(cx, GitBlame::blur)
10962 }
10963 self.hide_context_menu(cx);
10964 hide_hover(self, cx);
10965 cx.emit(EditorEvent::Blurred);
10966 cx.notify();
10967 }
10968
10969 pub fn register_action<A: Action>(
10970 &mut self,
10971 listener: impl Fn(&A, &mut WindowContext) + 'static,
10972 ) -> &mut Self {
10973 let listener = Arc::new(listener);
10974
10975 self.editor_actions.push(Box::new(move |cx| {
10976 let _view = cx.view().clone();
10977 let cx = cx.window_context();
10978 let listener = listener.clone();
10979 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10980 let action = action.downcast_ref().unwrap();
10981 if phase == DispatchPhase::Bubble {
10982 listener(action, cx)
10983 }
10984 })
10985 }));
10986 self
10987 }
10988}
10989
10990fn hunks_for_selections(
10991 multi_buffer_snapshot: &MultiBufferSnapshot,
10992 selections: &[Selection<Anchor>],
10993) -> Vec<DiffHunk<MultiBufferRow>> {
10994 let mut hunks = Vec::with_capacity(selections.len());
10995 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10996 HashMap::default();
10997 let buffer_rows_for_selections = selections.iter().map(|selection| {
10998 let head = selection.head();
10999 let tail = selection.tail();
11000 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11001 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11002 if start > end {
11003 end..start
11004 } else {
11005 start..end
11006 }
11007 });
11008
11009 for selected_multi_buffer_rows in buffer_rows_for_selections {
11010 let query_rows =
11011 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11012 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11013 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11014 // when the caret is just above or just below the deleted hunk.
11015 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11016 let related_to_selection = if allow_adjacent {
11017 hunk.associated_range.overlaps(&query_rows)
11018 || hunk.associated_range.start == query_rows.end
11019 || hunk.associated_range.end == query_rows.start
11020 } else {
11021 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11022 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11023 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11024 || selected_multi_buffer_rows.end == hunk.associated_range.start
11025 };
11026 if related_to_selection {
11027 if !processed_buffer_rows
11028 .entry(hunk.buffer_id)
11029 .or_default()
11030 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11031 {
11032 continue;
11033 }
11034 hunks.push(hunk);
11035 }
11036 }
11037 }
11038
11039 hunks
11040}
11041
11042pub trait CollaborationHub {
11043 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11044 fn user_participant_indices<'a>(
11045 &self,
11046 cx: &'a AppContext,
11047 ) -> &'a HashMap<u64, ParticipantIndex>;
11048 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11049}
11050
11051impl CollaborationHub for Model<Project> {
11052 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11053 self.read(cx).collaborators()
11054 }
11055
11056 fn user_participant_indices<'a>(
11057 &self,
11058 cx: &'a AppContext,
11059 ) -> &'a HashMap<u64, ParticipantIndex> {
11060 self.read(cx).user_store().read(cx).participant_indices()
11061 }
11062
11063 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11064 let this = self.read(cx);
11065 let user_ids = this.collaborators().values().map(|c| c.user_id);
11066 this.user_store().read_with(cx, |user_store, cx| {
11067 user_store.participant_names(user_ids, cx)
11068 })
11069 }
11070}
11071
11072pub trait CompletionProvider {
11073 fn completions(
11074 &self,
11075 buffer: &Model<Buffer>,
11076 buffer_position: text::Anchor,
11077 cx: &mut ViewContext<Editor>,
11078 ) -> Task<Result<Vec<Completion>>>;
11079
11080 fn resolve_completions(
11081 &self,
11082 buffer: Model<Buffer>,
11083 completion_indices: Vec<usize>,
11084 completions: Arc<RwLock<Box<[Completion]>>>,
11085 cx: &mut ViewContext<Editor>,
11086 ) -> Task<Result<bool>>;
11087
11088 fn apply_additional_edits_for_completion(
11089 &self,
11090 buffer: Model<Buffer>,
11091 completion: Completion,
11092 push_to_history: bool,
11093 cx: &mut ViewContext<Editor>,
11094 ) -> Task<Result<Option<language::Transaction>>>;
11095
11096 fn is_completion_trigger(
11097 &self,
11098 buffer: &Model<Buffer>,
11099 position: language::Anchor,
11100 text: &str,
11101 trigger_in_words: bool,
11102 cx: &mut ViewContext<Editor>,
11103 ) -> bool;
11104}
11105
11106impl CompletionProvider for Model<Project> {
11107 fn completions(
11108 &self,
11109 buffer: &Model<Buffer>,
11110 buffer_position: text::Anchor,
11111 cx: &mut ViewContext<Editor>,
11112 ) -> Task<Result<Vec<Completion>>> {
11113 self.update(cx, |project, cx| {
11114 project.completions(&buffer, buffer_position, cx)
11115 })
11116 }
11117
11118 fn resolve_completions(
11119 &self,
11120 buffer: Model<Buffer>,
11121 completion_indices: Vec<usize>,
11122 completions: Arc<RwLock<Box<[Completion]>>>,
11123 cx: &mut ViewContext<Editor>,
11124 ) -> Task<Result<bool>> {
11125 self.update(cx, |project, cx| {
11126 project.resolve_completions(buffer, completion_indices, completions, cx)
11127 })
11128 }
11129
11130 fn apply_additional_edits_for_completion(
11131 &self,
11132 buffer: Model<Buffer>,
11133 completion: Completion,
11134 push_to_history: bool,
11135 cx: &mut ViewContext<Editor>,
11136 ) -> Task<Result<Option<language::Transaction>>> {
11137 self.update(cx, |project, cx| {
11138 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11139 })
11140 }
11141
11142 fn is_completion_trigger(
11143 &self,
11144 buffer: &Model<Buffer>,
11145 position: language::Anchor,
11146 text: &str,
11147 trigger_in_words: bool,
11148 cx: &mut ViewContext<Editor>,
11149 ) -> bool {
11150 if !EditorSettings::get_global(cx).show_completions_on_input {
11151 return false;
11152 }
11153
11154 let mut chars = text.chars();
11155 let char = if let Some(char) = chars.next() {
11156 char
11157 } else {
11158 return false;
11159 };
11160 if chars.next().is_some() {
11161 return false;
11162 }
11163
11164 let buffer = buffer.read(cx);
11165 let scope = buffer.snapshot().language_scope_at(position);
11166 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11167 return true;
11168 }
11169
11170 buffer
11171 .completion_triggers()
11172 .iter()
11173 .any(|string| string == text)
11174 }
11175}
11176
11177fn inlay_hint_settings(
11178 location: Anchor,
11179 snapshot: &MultiBufferSnapshot,
11180 cx: &mut ViewContext<'_, Editor>,
11181) -> InlayHintSettings {
11182 let file = snapshot.file_at(location);
11183 let language = snapshot.language_at(location);
11184 let settings = all_language_settings(file, cx);
11185 settings
11186 .language(language.map(|l| l.name()).as_deref())
11187 .inlay_hints
11188}
11189
11190fn consume_contiguous_rows(
11191 contiguous_row_selections: &mut Vec<Selection<Point>>,
11192 selection: &Selection<Point>,
11193 display_map: &DisplaySnapshot,
11194 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11195) -> (MultiBufferRow, MultiBufferRow) {
11196 contiguous_row_selections.push(selection.clone());
11197 let start_row = MultiBufferRow(selection.start.row);
11198 let mut end_row = ending_row(selection, display_map);
11199
11200 while let Some(next_selection) = selections.peek() {
11201 if next_selection.start.row <= end_row.0 {
11202 end_row = ending_row(next_selection, display_map);
11203 contiguous_row_selections.push(selections.next().unwrap().clone());
11204 } else {
11205 break;
11206 }
11207 }
11208 (start_row, end_row)
11209}
11210
11211fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11212 if next_selection.end.column > 0 || next_selection.is_empty() {
11213 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11214 } else {
11215 MultiBufferRow(next_selection.end.row)
11216 }
11217}
11218
11219impl EditorSnapshot {
11220 pub fn remote_selections_in_range<'a>(
11221 &'a self,
11222 range: &'a Range<Anchor>,
11223 collaboration_hub: &dyn CollaborationHub,
11224 cx: &'a AppContext,
11225 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11226 let participant_names = collaboration_hub.user_names(cx);
11227 let participant_indices = collaboration_hub.user_participant_indices(cx);
11228 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11229 let collaborators_by_replica_id = collaborators_by_peer_id
11230 .iter()
11231 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11232 .collect::<HashMap<_, _>>();
11233 self.buffer_snapshot
11234 .remote_selections_in_range(range)
11235 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11236 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11237 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11238 let user_name = participant_names.get(&collaborator.user_id).cloned();
11239 Some(RemoteSelection {
11240 replica_id,
11241 selection,
11242 cursor_shape,
11243 line_mode,
11244 participant_index,
11245 peer_id: collaborator.peer_id,
11246 user_name,
11247 })
11248 })
11249 }
11250
11251 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11252 self.display_snapshot.buffer_snapshot.language_at(position)
11253 }
11254
11255 pub fn is_focused(&self) -> bool {
11256 self.is_focused
11257 }
11258
11259 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11260 self.placeholder_text.as_ref()
11261 }
11262
11263 pub fn scroll_position(&self) -> gpui::Point<f32> {
11264 self.scroll_anchor.scroll_position(&self.display_snapshot)
11265 }
11266
11267 pub fn gutter_dimensions(
11268 &self,
11269 font_id: FontId,
11270 font_size: Pixels,
11271 em_width: Pixels,
11272 max_line_number_width: Pixels,
11273 cx: &AppContext,
11274 ) -> GutterDimensions {
11275 if !self.show_gutter {
11276 return GutterDimensions::default();
11277 }
11278 let descent = cx.text_system().descent(font_id, font_size);
11279
11280 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11281 matches!(
11282 ProjectSettings::get_global(cx).git.git_gutter,
11283 Some(GitGutterSetting::TrackedFiles)
11284 )
11285 });
11286 let gutter_settings = EditorSettings::get_global(cx).gutter;
11287 let show_line_numbers = self
11288 .show_line_numbers
11289 .unwrap_or_else(|| gutter_settings.line_numbers);
11290 let line_gutter_width = if show_line_numbers {
11291 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11292 let min_width_for_number_on_gutter = em_width * 4.0;
11293 max_line_number_width.max(min_width_for_number_on_gutter)
11294 } else {
11295 0.0.into()
11296 };
11297
11298 let show_code_actions = self
11299 .show_code_actions
11300 .unwrap_or_else(|| gutter_settings.code_actions);
11301
11302 let git_blame_entries_width = self
11303 .render_git_blame_gutter
11304 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11305
11306 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11307 left_padding += if show_code_actions {
11308 em_width * 3.0
11309 } else if show_git_gutter && show_line_numbers {
11310 em_width * 2.0
11311 } else if show_git_gutter || show_line_numbers {
11312 em_width
11313 } else {
11314 px(0.)
11315 };
11316
11317 let right_padding = if gutter_settings.folds && show_line_numbers {
11318 em_width * 4.0
11319 } else if gutter_settings.folds {
11320 em_width * 3.0
11321 } else if show_line_numbers {
11322 em_width
11323 } else {
11324 px(0.)
11325 };
11326
11327 GutterDimensions {
11328 left_padding,
11329 right_padding,
11330 width: line_gutter_width + left_padding + right_padding,
11331 margin: -descent,
11332 git_blame_entries_width,
11333 }
11334 }
11335
11336 pub fn render_fold_toggle(
11337 &self,
11338 buffer_row: MultiBufferRow,
11339 row_contains_cursor: bool,
11340 editor: View<Editor>,
11341 cx: &mut WindowContext,
11342 ) -> Option<AnyElement> {
11343 let folded = self.is_line_folded(buffer_row);
11344
11345 if let Some(flap) = self
11346 .flap_snapshot
11347 .query_row(buffer_row, &self.buffer_snapshot)
11348 {
11349 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11350 if folded {
11351 editor.update(cx, |editor, cx| {
11352 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11353 });
11354 } else {
11355 editor.update(cx, |editor, cx| {
11356 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11357 });
11358 }
11359 });
11360
11361 Some((flap.render_toggle)(
11362 buffer_row,
11363 folded,
11364 toggle_callback,
11365 cx,
11366 ))
11367 } else if folded
11368 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11369 {
11370 Some(
11371 IconButton::new(
11372 ("indent-fold-indicator", buffer_row.0),
11373 ui::IconName::ChevronDown,
11374 )
11375 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
11376 if folded {
11377 this.unfold_at(&UnfoldAt { buffer_row }, cx);
11378 } else {
11379 this.fold_at(&FoldAt { buffer_row }, cx);
11380 }
11381 }))
11382 .icon_color(ui::Color::Muted)
11383 .icon_size(ui::IconSize::Small)
11384 .selected(folded)
11385 .selected_icon(ui::IconName::ChevronRight)
11386 .size(ui::ButtonSize::None)
11387 .into_any_element(),
11388 )
11389 } else {
11390 None
11391 }
11392 }
11393
11394 pub fn render_flap_trailer(
11395 &self,
11396 buffer_row: MultiBufferRow,
11397 cx: &mut WindowContext,
11398 ) -> Option<AnyElement> {
11399 let folded = self.is_line_folded(buffer_row);
11400 let flap = self
11401 .flap_snapshot
11402 .query_row(buffer_row, &self.buffer_snapshot)?;
11403 Some((flap.render_trailer)(buffer_row, folded, cx))
11404 }
11405}
11406
11407impl Deref for EditorSnapshot {
11408 type Target = DisplaySnapshot;
11409
11410 fn deref(&self) -> &Self::Target {
11411 &self.display_snapshot
11412 }
11413}
11414
11415#[derive(Clone, Debug, PartialEq, Eq)]
11416pub enum EditorEvent {
11417 InputIgnored {
11418 text: Arc<str>,
11419 },
11420 InputHandled {
11421 utf16_range_to_replace: Option<Range<isize>>,
11422 text: Arc<str>,
11423 },
11424 ExcerptsAdded {
11425 buffer: Model<Buffer>,
11426 predecessor: ExcerptId,
11427 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11428 },
11429 ExcerptsRemoved {
11430 ids: Vec<ExcerptId>,
11431 },
11432 BufferEdited,
11433 Edited,
11434 Reparsed,
11435 Focused,
11436 Blurred,
11437 DirtyChanged,
11438 Saved,
11439 TitleChanged,
11440 DiffBaseChanged,
11441 SelectionsChanged {
11442 local: bool,
11443 },
11444 ScrollPositionChanged {
11445 local: bool,
11446 autoscroll: bool,
11447 },
11448 Closed,
11449 TransactionUndone {
11450 transaction_id: clock::Lamport,
11451 },
11452 TransactionBegun {
11453 transaction_id: clock::Lamport,
11454 },
11455}
11456
11457impl EventEmitter<EditorEvent> for Editor {}
11458
11459impl FocusableView for Editor {
11460 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11461 self.focus_handle.clone()
11462 }
11463}
11464
11465impl Render for Editor {
11466 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11467 let settings = ThemeSettings::get_global(cx);
11468
11469 let text_style = match self.mode {
11470 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11471 color: cx.theme().colors().editor_foreground,
11472 font_family: settings.ui_font.family.clone(),
11473 font_features: settings.ui_font.features.clone(),
11474 font_size: rems(0.875).into(),
11475 font_weight: settings.ui_font.weight,
11476 font_style: FontStyle::Normal,
11477 line_height: relative(settings.buffer_line_height.value()),
11478 background_color: None,
11479 underline: None,
11480 strikethrough: None,
11481 white_space: WhiteSpace::Normal,
11482 },
11483 EditorMode::Full => TextStyle {
11484 color: cx.theme().colors().editor_foreground,
11485 font_family: settings.buffer_font.family.clone(),
11486 font_features: settings.buffer_font.features.clone(),
11487 font_size: settings.buffer_font_size(cx).into(),
11488 font_weight: settings.buffer_font.weight,
11489 font_style: FontStyle::Normal,
11490 line_height: relative(settings.buffer_line_height.value()),
11491 background_color: None,
11492 underline: None,
11493 strikethrough: None,
11494 white_space: WhiteSpace::Normal,
11495 },
11496 };
11497
11498 let background = match self.mode {
11499 EditorMode::SingleLine => cx.theme().system().transparent,
11500 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11501 EditorMode::Full => cx.theme().colors().editor_background,
11502 };
11503
11504 EditorElement::new(
11505 cx.view(),
11506 EditorStyle {
11507 background,
11508 local_player: cx.theme().players().local(),
11509 text: text_style,
11510 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11511 syntax: cx.theme().syntax().clone(),
11512 status: cx.theme().status().clone(),
11513 inlay_hints_style: HighlightStyle {
11514 color: Some(cx.theme().status().hint),
11515 ..HighlightStyle::default()
11516 },
11517 suggestions_style: HighlightStyle {
11518 color: Some(cx.theme().status().predictive),
11519 ..HighlightStyle::default()
11520 },
11521 },
11522 )
11523 }
11524}
11525
11526impl ViewInputHandler for Editor {
11527 fn text_for_range(
11528 &mut self,
11529 range_utf16: Range<usize>,
11530 cx: &mut ViewContext<Self>,
11531 ) -> Option<String> {
11532 Some(
11533 self.buffer
11534 .read(cx)
11535 .read(cx)
11536 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11537 .collect(),
11538 )
11539 }
11540
11541 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11542 // Prevent the IME menu from appearing when holding down an alphabetic key
11543 // while input is disabled.
11544 if !self.input_enabled {
11545 return None;
11546 }
11547
11548 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11549 Some(range.start.0..range.end.0)
11550 }
11551
11552 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11553 let snapshot = self.buffer.read(cx).read(cx);
11554 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11555 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11556 }
11557
11558 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11559 self.clear_highlights::<InputComposition>(cx);
11560 self.ime_transaction.take();
11561 }
11562
11563 fn replace_text_in_range(
11564 &mut self,
11565 range_utf16: Option<Range<usize>>,
11566 text: &str,
11567 cx: &mut ViewContext<Self>,
11568 ) {
11569 if !self.input_enabled {
11570 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11571 return;
11572 }
11573
11574 self.transact(cx, |this, cx| {
11575 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11576 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11577 Some(this.selection_replacement_ranges(range_utf16, cx))
11578 } else {
11579 this.marked_text_ranges(cx)
11580 };
11581
11582 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11583 let newest_selection_id = this.selections.newest_anchor().id;
11584 this.selections
11585 .all::<OffsetUtf16>(cx)
11586 .iter()
11587 .zip(ranges_to_replace.iter())
11588 .find_map(|(selection, range)| {
11589 if selection.id == newest_selection_id {
11590 Some(
11591 (range.start.0 as isize - selection.head().0 as isize)
11592 ..(range.end.0 as isize - selection.head().0 as isize),
11593 )
11594 } else {
11595 None
11596 }
11597 })
11598 });
11599
11600 cx.emit(EditorEvent::InputHandled {
11601 utf16_range_to_replace: range_to_replace,
11602 text: text.into(),
11603 });
11604
11605 if let Some(new_selected_ranges) = new_selected_ranges {
11606 this.change_selections(None, cx, |selections| {
11607 selections.select_ranges(new_selected_ranges)
11608 });
11609 this.backspace(&Default::default(), cx);
11610 }
11611
11612 this.handle_input(text, cx);
11613 });
11614
11615 if let Some(transaction) = self.ime_transaction {
11616 self.buffer.update(cx, |buffer, cx| {
11617 buffer.group_until_transaction(transaction, cx);
11618 });
11619 }
11620
11621 self.unmark_text(cx);
11622 }
11623
11624 fn replace_and_mark_text_in_range(
11625 &mut self,
11626 range_utf16: Option<Range<usize>>,
11627 text: &str,
11628 new_selected_range_utf16: Option<Range<usize>>,
11629 cx: &mut ViewContext<Self>,
11630 ) {
11631 if !self.input_enabled {
11632 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11633 return;
11634 }
11635
11636 let transaction = self.transact(cx, |this, cx| {
11637 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11638 let snapshot = this.buffer.read(cx).read(cx);
11639 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11640 for marked_range in &mut marked_ranges {
11641 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11642 marked_range.start.0 += relative_range_utf16.start;
11643 marked_range.start =
11644 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11645 marked_range.end =
11646 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11647 }
11648 }
11649 Some(marked_ranges)
11650 } else if let Some(range_utf16) = range_utf16 {
11651 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11652 Some(this.selection_replacement_ranges(range_utf16, cx))
11653 } else {
11654 None
11655 };
11656
11657 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11658 let newest_selection_id = this.selections.newest_anchor().id;
11659 this.selections
11660 .all::<OffsetUtf16>(cx)
11661 .iter()
11662 .zip(ranges_to_replace.iter())
11663 .find_map(|(selection, range)| {
11664 if selection.id == newest_selection_id {
11665 Some(
11666 (range.start.0 as isize - selection.head().0 as isize)
11667 ..(range.end.0 as isize - selection.head().0 as isize),
11668 )
11669 } else {
11670 None
11671 }
11672 })
11673 });
11674
11675 cx.emit(EditorEvent::InputHandled {
11676 utf16_range_to_replace: range_to_replace,
11677 text: text.into(),
11678 });
11679
11680 if let Some(ranges) = ranges_to_replace {
11681 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11682 }
11683
11684 let marked_ranges = {
11685 let snapshot = this.buffer.read(cx).read(cx);
11686 this.selections
11687 .disjoint_anchors()
11688 .iter()
11689 .map(|selection| {
11690 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11691 })
11692 .collect::<Vec<_>>()
11693 };
11694
11695 if text.is_empty() {
11696 this.unmark_text(cx);
11697 } else {
11698 this.highlight_text::<InputComposition>(
11699 marked_ranges.clone(),
11700 HighlightStyle {
11701 underline: Some(UnderlineStyle {
11702 thickness: px(1.),
11703 color: None,
11704 wavy: false,
11705 }),
11706 ..Default::default()
11707 },
11708 cx,
11709 );
11710 }
11711
11712 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11713 let use_autoclose = this.use_autoclose;
11714 this.set_use_autoclose(false);
11715 this.handle_input(text, cx);
11716 this.set_use_autoclose(use_autoclose);
11717
11718 if let Some(new_selected_range) = new_selected_range_utf16 {
11719 let snapshot = this.buffer.read(cx).read(cx);
11720 let new_selected_ranges = marked_ranges
11721 .into_iter()
11722 .map(|marked_range| {
11723 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11724 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11725 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11726 snapshot.clip_offset_utf16(new_start, Bias::Left)
11727 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11728 })
11729 .collect::<Vec<_>>();
11730
11731 drop(snapshot);
11732 this.change_selections(None, cx, |selections| {
11733 selections.select_ranges(new_selected_ranges)
11734 });
11735 }
11736 });
11737
11738 self.ime_transaction = self.ime_transaction.or(transaction);
11739 if let Some(transaction) = self.ime_transaction {
11740 self.buffer.update(cx, |buffer, cx| {
11741 buffer.group_until_transaction(transaction, cx);
11742 });
11743 }
11744
11745 if self.text_highlights::<InputComposition>(cx).is_none() {
11746 self.ime_transaction.take();
11747 }
11748 }
11749
11750 fn bounds_for_range(
11751 &mut self,
11752 range_utf16: Range<usize>,
11753 element_bounds: gpui::Bounds<Pixels>,
11754 cx: &mut ViewContext<Self>,
11755 ) -> Option<gpui::Bounds<Pixels>> {
11756 let text_layout_details = self.text_layout_details(cx);
11757 let style = &text_layout_details.editor_style;
11758 let font_id = cx.text_system().resolve_font(&style.text.font());
11759 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11760 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11761 let em_width = cx
11762 .text_system()
11763 .typographic_bounds(font_id, font_size, 'm')
11764 .unwrap()
11765 .size
11766 .width;
11767
11768 let snapshot = self.snapshot(cx);
11769 let scroll_position = snapshot.scroll_position();
11770 let scroll_left = scroll_position.x * em_width;
11771
11772 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11773 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11774 + self.gutter_dimensions.width;
11775 let y = line_height * (start.row().as_f32() - scroll_position.y);
11776
11777 Some(Bounds {
11778 origin: element_bounds.origin + point(x, y),
11779 size: size(em_width, line_height),
11780 })
11781 }
11782}
11783
11784trait SelectionExt {
11785 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11786 fn spanned_rows(
11787 &self,
11788 include_end_if_at_line_start: bool,
11789 map: &DisplaySnapshot,
11790 ) -> Range<MultiBufferRow>;
11791}
11792
11793impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11794 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11795 let start = self
11796 .start
11797 .to_point(&map.buffer_snapshot)
11798 .to_display_point(map);
11799 let end = self
11800 .end
11801 .to_point(&map.buffer_snapshot)
11802 .to_display_point(map);
11803 if self.reversed {
11804 end..start
11805 } else {
11806 start..end
11807 }
11808 }
11809
11810 fn spanned_rows(
11811 &self,
11812 include_end_if_at_line_start: bool,
11813 map: &DisplaySnapshot,
11814 ) -> Range<MultiBufferRow> {
11815 let start = self.start.to_point(&map.buffer_snapshot);
11816 let mut end = self.end.to_point(&map.buffer_snapshot);
11817 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11818 end.row -= 1;
11819 }
11820
11821 let buffer_start = map.prev_line_boundary(start).0;
11822 let buffer_end = map.next_line_boundary(end).0;
11823 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11824 }
11825}
11826
11827impl<T: InvalidationRegion> InvalidationStack<T> {
11828 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11829 where
11830 S: Clone + ToOffset,
11831 {
11832 while let Some(region) = self.last() {
11833 let all_selections_inside_invalidation_ranges =
11834 if selections.len() == region.ranges().len() {
11835 selections
11836 .iter()
11837 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11838 .all(|(selection, invalidation_range)| {
11839 let head = selection.head().to_offset(buffer);
11840 invalidation_range.start <= head && invalidation_range.end >= head
11841 })
11842 } else {
11843 false
11844 };
11845
11846 if all_selections_inside_invalidation_ranges {
11847 break;
11848 } else {
11849 self.pop();
11850 }
11851 }
11852 }
11853}
11854
11855impl<T> Default for InvalidationStack<T> {
11856 fn default() -> Self {
11857 Self(Default::default())
11858 }
11859}
11860
11861impl<T> Deref for InvalidationStack<T> {
11862 type Target = Vec<T>;
11863
11864 fn deref(&self) -> &Self::Target {
11865 &self.0
11866 }
11867}
11868
11869impl<T> DerefMut for InvalidationStack<T> {
11870 fn deref_mut(&mut self) -> &mut Self::Target {
11871 &mut self.0
11872 }
11873}
11874
11875impl InvalidationRegion for SnippetState {
11876 fn ranges(&self) -> &[Range<Anchor>] {
11877 &self.ranges[self.active_index]
11878 }
11879}
11880
11881pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11882 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11883
11884 Box::new(move |cx: &mut BlockContext| {
11885 let group_id: SharedString = cx.block_id.to_string().into();
11886
11887 let mut text_style = cx.text_style().clone();
11888 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11889 let theme_settings = ThemeSettings::get_global(cx);
11890 text_style.font_family = theme_settings.buffer_font.family.clone();
11891 text_style.font_style = theme_settings.buffer_font.style;
11892 text_style.font_features = theme_settings.buffer_font.features.clone();
11893 text_style.font_weight = theme_settings.buffer_font.weight;
11894
11895 let multi_line_diagnostic = diagnostic.message.contains('\n');
11896
11897 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11898 if multi_line_diagnostic {
11899 v_flex()
11900 } else {
11901 h_flex()
11902 }
11903 .children(diagnostic.is_primary.then(|| {
11904 IconButton::new(("close-block", block_id), IconName::XCircle)
11905 .icon_color(Color::Muted)
11906 .size(ButtonSize::Compact)
11907 .style(ButtonStyle::Transparent)
11908 .visible_on_hover(group_id.clone())
11909 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11910 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11911 }))
11912 .child(
11913 IconButton::new(("copy-block", block_id), IconName::Copy)
11914 .icon_color(Color::Muted)
11915 .size(ButtonSize::Compact)
11916 .style(ButtonStyle::Transparent)
11917 .visible_on_hover(group_id.clone())
11918 .on_click({
11919 let message = diagnostic.message.clone();
11920 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11921 })
11922 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11923 )
11924 };
11925
11926 let icon_size = buttons(&diagnostic, cx.block_id)
11927 .into_any_element()
11928 .layout_as_root(AvailableSpace::min_size(), cx);
11929
11930 h_flex()
11931 .id(cx.block_id)
11932 .group(group_id.clone())
11933 .relative()
11934 .size_full()
11935 .pl(cx.gutter_dimensions.width)
11936 .w(cx.max_width + cx.gutter_dimensions.width)
11937 .child(
11938 div()
11939 .flex()
11940 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11941 .flex_shrink(),
11942 )
11943 .child(buttons(&diagnostic, cx.block_id))
11944 .child(div().flex().flex_shrink_0().child(
11945 StyledText::new(text_without_backticks.clone()).with_highlights(
11946 &text_style,
11947 code_ranges.iter().map(|range| {
11948 (
11949 range.clone(),
11950 HighlightStyle {
11951 font_weight: Some(FontWeight::BOLD),
11952 ..Default::default()
11953 },
11954 )
11955 }),
11956 ),
11957 ))
11958 .into_any_element()
11959 })
11960}
11961
11962pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11963 let mut text_without_backticks = String::new();
11964 let mut code_ranges = Vec::new();
11965
11966 if let Some(source) = &diagnostic.source {
11967 text_without_backticks.push_str(&source);
11968 code_ranges.push(0..source.len());
11969 text_without_backticks.push_str(": ");
11970 }
11971
11972 let mut prev_offset = 0;
11973 let mut in_code_block = false;
11974 for (ix, _) in diagnostic
11975 .message
11976 .match_indices('`')
11977 .chain([(diagnostic.message.len(), "")])
11978 {
11979 let prev_len = text_without_backticks.len();
11980 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11981 prev_offset = ix + 1;
11982 if in_code_block {
11983 code_ranges.push(prev_len..text_without_backticks.len());
11984 in_code_block = false;
11985 } else {
11986 in_code_block = true;
11987 }
11988 }
11989
11990 (text_without_backticks.into(), code_ranges)
11991}
11992
11993fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11994 match (severity, valid) {
11995 (DiagnosticSeverity::ERROR, true) => colors.error,
11996 (DiagnosticSeverity::ERROR, false) => colors.error,
11997 (DiagnosticSeverity::WARNING, true) => colors.warning,
11998 (DiagnosticSeverity::WARNING, false) => colors.warning,
11999 (DiagnosticSeverity::INFORMATION, true) => colors.info,
12000 (DiagnosticSeverity::INFORMATION, false) => colors.info,
12001 (DiagnosticSeverity::HINT, true) => colors.info,
12002 (DiagnosticSeverity::HINT, false) => colors.info,
12003 _ => colors.ignored,
12004 }
12005}
12006
12007pub fn styled_runs_for_code_label<'a>(
12008 label: &'a CodeLabel,
12009 syntax_theme: &'a theme::SyntaxTheme,
12010) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12011 let fade_out = HighlightStyle {
12012 fade_out: Some(0.35),
12013 ..Default::default()
12014 };
12015
12016 let mut prev_end = label.filter_range.end;
12017 label
12018 .runs
12019 .iter()
12020 .enumerate()
12021 .flat_map(move |(ix, (range, highlight_id))| {
12022 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12023 style
12024 } else {
12025 return Default::default();
12026 };
12027 let mut muted_style = style;
12028 muted_style.highlight(fade_out);
12029
12030 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12031 if range.start >= label.filter_range.end {
12032 if range.start > prev_end {
12033 runs.push((prev_end..range.start, fade_out));
12034 }
12035 runs.push((range.clone(), muted_style));
12036 } else if range.end <= label.filter_range.end {
12037 runs.push((range.clone(), style));
12038 } else {
12039 runs.push((range.start..label.filter_range.end, style));
12040 runs.push((label.filter_range.end..range.end, muted_style));
12041 }
12042 prev_end = cmp::max(prev_end, range.end);
12043
12044 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12045 runs.push((prev_end..label.text.len(), fade_out));
12046 }
12047
12048 runs
12049 })
12050}
12051
12052pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12053 let mut prev_index = 0;
12054 let mut prev_codepoint: Option<char> = None;
12055 text.char_indices()
12056 .chain([(text.len(), '\0')])
12057 .filter_map(move |(index, codepoint)| {
12058 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12059 let is_boundary = index == text.len()
12060 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12061 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12062 if is_boundary {
12063 let chunk = &text[prev_index..index];
12064 prev_index = index;
12065 Some(chunk)
12066 } else {
12067 None
12068 }
12069 })
12070}
12071
12072trait RangeToAnchorExt {
12073 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12074}
12075
12076impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12077 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12078 let start_offset = self.start.to_offset(snapshot);
12079 let end_offset = self.end.to_offset(snapshot);
12080 if start_offset == end_offset {
12081 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12082 } else {
12083 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12084 }
12085 }
12086}
12087
12088pub trait RowExt {
12089 fn as_f32(&self) -> f32;
12090
12091 fn next_row(&self) -> Self;
12092
12093 fn previous_row(&self) -> Self;
12094
12095 fn minus(&self, other: Self) -> u32;
12096}
12097
12098impl RowExt for DisplayRow {
12099 fn as_f32(&self) -> f32 {
12100 self.0 as f32
12101 }
12102
12103 fn next_row(&self) -> Self {
12104 Self(self.0 + 1)
12105 }
12106
12107 fn previous_row(&self) -> Self {
12108 Self(self.0.saturating_sub(1))
12109 }
12110
12111 fn minus(&self, other: Self) -> u32 {
12112 self.0 - other.0
12113 }
12114}
12115
12116impl RowExt for MultiBufferRow {
12117 fn as_f32(&self) -> f32 {
12118 self.0 as f32
12119 }
12120
12121 fn next_row(&self) -> Self {
12122 Self(self.0 + 1)
12123 }
12124
12125 fn previous_row(&self) -> Self {
12126 Self(self.0.saturating_sub(1))
12127 }
12128
12129 fn minus(&self, other: Self) -> u32 {
12130 self.0 - other.0
12131 }
12132}
12133
12134trait RowRangeExt {
12135 type Row;
12136
12137 fn len(&self) -> usize;
12138
12139 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12140}
12141
12142impl RowRangeExt for Range<MultiBufferRow> {
12143 type Row = MultiBufferRow;
12144
12145 fn len(&self) -> usize {
12146 (self.end.0 - self.start.0) as usize
12147 }
12148
12149 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12150 (self.start.0..self.end.0).map(MultiBufferRow)
12151 }
12152}
12153
12154impl RowRangeExt for Range<DisplayRow> {
12155 type Row = DisplayRow;
12156
12157 fn len(&self) -> usize {
12158 (self.end.0 - self.start.0) as usize
12159 }
12160
12161 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12162 (self.start.0..self.end.0).map(DisplayRow)
12163 }
12164}
12165
12166fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12167 if hunk.diff_base_byte_range.is_empty() {
12168 DiffHunkStatus::Added
12169 } else if hunk.associated_range.is_empty() {
12170 DiffHunkStatus::Removed
12171 } else {
12172 DiffHunkStatus::Modified
12173 }
12174}