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;
18mod debounced_delay;
19pub mod display_map;
20mod editor_settings;
21mod element;
22mod git;
23mod highlight_matching_bracket;
24mod hover_links;
25mod hover_popover;
26mod hunk_diff;
27mod indent_guides;
28mod inlay_hint_cache;
29mod inline_completion_provider;
30pub mod items;
31mod mouse_context_menu;
32pub mod movement;
33mod persistence;
34mod rust_analyzer_ext;
35pub mod scroll;
36mod selections_collection;
37pub mod tasks;
38
39#[cfg(test)]
40mod editor_tests;
41#[cfg(any(test, feature = "test-support"))]
42pub mod test;
43use ::git::diff::{DiffHunk, DiffHunkStatus};
44use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
45pub(crate) use actions::*;
46use aho_corasick::AhoCorasick;
47use anyhow::{anyhow, Context as _, Result};
48use blink_manager::BlinkManager;
49use client::{Collaborator, ParticipantIndex};
50use clock::ReplicaId;
51use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
52use convert_case::{Case, Casing};
53use debounced_delay::DebouncedDelay;
54use display_map::*;
55pub use display_map::{DisplayPoint, FoldPlaceholder};
56pub use editor_settings::{CurrentLineHighlight, EditorSettings};
57use element::LineWithInvisibles;
58pub use element::{
59 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
60};
61use futures::FutureExt;
62use fuzzy::{StringMatch, StringMatchCandidate};
63use git::blame::GitBlame;
64use git::diff_hunk_to_display;
65use gpui::{
66 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
67 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
68 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
69 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, ListSizingBehavior, Model,
70 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle,
71 Styled, StyledText, Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle,
72 View, ViewContext, ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
73};
74use highlight_matching_bracket::refresh_matching_bracket_highlights;
75use hover_popover::{hide_hover, HoverState};
76use hunk_diff::ExpandedHunks;
77pub(crate) use hunk_diff::HunkToExpand;
78use indent_guides::ActiveIndentGuidesState;
79use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
80pub use inline_completion_provider::*;
81pub use items::MAX_TAB_TITLE_LEN;
82use itertools::Itertools;
83use language::{
84 char_kind,
85 language_settings::{self, all_language_settings, InlayHintSettings},
86 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
87 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
88 Point, Selection, SelectionGoal, TransactionId,
89};
90use language::{BufferRow, Runnable, RunnableRange};
91use task::{ResolvedTask, TaskTemplate, TaskVariables};
92
93use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
94use lsp::{DiagnosticSeverity, LanguageServerId};
95use mouse_context_menu::MouseContextMenu;
96use movement::TextLayoutDetails;
97pub use multi_buffer::{
98 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
99 ToPoint,
100};
101use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
102use ordered_float::OrderedFloat;
103use parking_lot::{Mutex, RwLock};
104use project::project_settings::{GitGutterSetting, ProjectSettings};
105use project::{
106 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
107 ProjectTransaction, TaskSourceKind, WorktreeId,
108};
109use rand::prelude::*;
110use rpc::{proto::*, ErrorExt};
111use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
112use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
113use serde::{Deserialize, Serialize};
114use settings::{update_settings_file, Settings, SettingsStore};
115use smallvec::SmallVec;
116use snippet::Snippet;
117use std::ops::Not as _;
118use std::{
119 any::TypeId,
120 borrow::Cow,
121 cmp::{self, Ordering, Reverse},
122 mem,
123 num::NonZeroU32,
124 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
125 path::Path,
126 sync::Arc,
127 time::{Duration, Instant},
128};
129pub use sum_tree::Bias;
130use sum_tree::TreeMap;
131use text::{BufferId, OffsetUtf16, Rope};
132use theme::{
133 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
134 ThemeColors, ThemeSettings,
135};
136use ui::{
137 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
138 Tooltip,
139};
140use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
141use workspace::item::{ItemHandle, PreviewTabsSettings};
142use workspace::notifications::{DetachAndPromptErr, NotificationId};
143use workspace::{
144 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
145};
146use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
147
148use crate::hover_links::find_url;
149
150pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
151const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
152const MAX_LINE_LEN: usize = 1024;
153const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
154const MAX_SELECTION_HISTORY_LEN: usize = 1024;
155pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
156#[doc(hidden)]
157pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
158#[doc(hidden)]
159pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
160
161pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
162
163pub fn render_parsed_markdown(
164 element_id: impl Into<ElementId>,
165 parsed: &language::ParsedMarkdown,
166 editor_style: &EditorStyle,
167 workspace: Option<WeakView<Workspace>>,
168 cx: &mut WindowContext,
169) -> InteractiveText {
170 let code_span_background_color = cx
171 .theme()
172 .colors()
173 .editor_document_highlight_read_background;
174
175 let highlights = gpui::combine_highlights(
176 parsed.highlights.iter().filter_map(|(range, highlight)| {
177 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
178 Some((range.clone(), highlight))
179 }),
180 parsed
181 .regions
182 .iter()
183 .zip(&parsed.region_ranges)
184 .filter_map(|(region, range)| {
185 if region.code {
186 Some((
187 range.clone(),
188 HighlightStyle {
189 background_color: Some(code_span_background_color),
190 ..Default::default()
191 },
192 ))
193 } else {
194 None
195 }
196 }),
197 );
198
199 let mut links = Vec::new();
200 let mut link_ranges = Vec::new();
201 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
202 if let Some(link) = region.link.clone() {
203 links.push(link);
204 link_ranges.push(range.clone());
205 }
206 }
207
208 InteractiveText::new(
209 element_id,
210 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
211 )
212 .on_click(link_ranges, move |clicked_range_ix, cx| {
213 match &links[clicked_range_ix] {
214 markdown::Link::Web { url } => cx.open_url(url),
215 markdown::Link::Path { path } => {
216 if let Some(workspace) = &workspace {
217 _ = workspace.update(cx, |workspace, cx| {
218 workspace.open_abs_path(path.clone(), false, cx).detach();
219 });
220 }
221 }
222 }
223 })
224}
225
226#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
227pub(crate) enum InlayId {
228 Suggestion(usize),
229 Hint(usize),
230}
231
232impl InlayId {
233 fn id(&self) -> usize {
234 match self {
235 Self::Suggestion(id) => *id,
236 Self::Hint(id) => *id,
237 }
238 }
239}
240
241enum DiffRowHighlight {}
242enum DocumentHighlightRead {}
243enum DocumentHighlightWrite {}
244enum InputComposition {}
245
246#[derive(Copy, Clone, PartialEq, Eq)]
247pub enum Direction {
248 Prev,
249 Next,
250}
251
252pub fn init_settings(cx: &mut AppContext) {
253 EditorSettings::register(cx);
254}
255
256pub fn init(cx: &mut AppContext) {
257 init_settings(cx);
258
259 workspace::register_project_item::<Editor>(cx);
260 workspace::register_followable_item::<Editor>(cx);
261 workspace::register_deserializable_item::<Editor>(cx);
262 cx.observe_new_views(
263 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
264 workspace.register_action(Editor::new_file);
265 workspace.register_action(Editor::new_file_in_direction);
266 },
267 )
268 .detach();
269
270 cx.on_action(move |_: &workspace::NewFile, cx| {
271 let app_state = workspace::AppState::global(cx);
272 if let Some(app_state) = app_state.upgrade() {
273 workspace::open_new(app_state, cx, |workspace, cx| {
274 Editor::new_file(workspace, &Default::default(), cx)
275 })
276 .detach();
277 }
278 });
279 cx.on_action(move |_: &workspace::NewWindow, cx| {
280 let app_state = workspace::AppState::global(cx);
281 if let Some(app_state) = app_state.upgrade() {
282 workspace::open_new(app_state, cx, |workspace, cx| {
283 Editor::new_file(workspace, &Default::default(), cx)
284 })
285 .detach();
286 }
287 });
288}
289
290pub struct SearchWithinRange;
291
292trait InvalidationRegion {
293 fn ranges(&self) -> &[Range<Anchor>];
294}
295
296#[derive(Clone, Debug, PartialEq)]
297pub enum SelectPhase {
298 Begin {
299 position: DisplayPoint,
300 add: bool,
301 click_count: usize,
302 },
303 BeginColumnar {
304 position: DisplayPoint,
305 reset: bool,
306 goal_column: u32,
307 },
308 Extend {
309 position: DisplayPoint,
310 click_count: usize,
311 },
312 Update {
313 position: DisplayPoint,
314 goal_column: u32,
315 scroll_delta: gpui::Point<f32>,
316 },
317 End,
318}
319
320#[derive(Clone, Debug)]
321pub enum SelectMode {
322 Character,
323 Word(Range<Anchor>),
324 Line(Range<Anchor>),
325 All,
326}
327
328#[derive(Copy, Clone, PartialEq, Eq, Debug)]
329pub enum EditorMode {
330 SingleLine,
331 AutoHeight { max_lines: usize },
332 Full,
333}
334
335#[derive(Clone, Debug)]
336pub enum SoftWrap {
337 None,
338 PreferLine,
339 EditorWidth,
340 Column(u32),
341}
342
343#[derive(Clone)]
344pub struct EditorStyle {
345 pub background: Hsla,
346 pub local_player: PlayerColor,
347 pub text: TextStyle,
348 pub scrollbar_width: Pixels,
349 pub syntax: Arc<SyntaxTheme>,
350 pub status: StatusColors,
351 pub inlay_hints_style: HighlightStyle,
352 pub suggestions_style: HighlightStyle,
353}
354
355impl Default for EditorStyle {
356 fn default() -> Self {
357 Self {
358 background: Hsla::default(),
359 local_player: PlayerColor::default(),
360 text: TextStyle::default(),
361 scrollbar_width: Pixels::default(),
362 syntax: Default::default(),
363 // HACK: Status colors don't have a real default.
364 // We should look into removing the status colors from the editor
365 // style and retrieve them directly from the theme.
366 status: StatusColors::dark(),
367 inlay_hints_style: HighlightStyle::default(),
368 suggestions_style: HighlightStyle::default(),
369 }
370 }
371}
372
373type CompletionId = usize;
374
375// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
376// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
377
378type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
379
380struct ScrollbarMarkerState {
381 scrollbar_size: Size<Pixels>,
382 dirty: bool,
383 markers: Arc<[PaintQuad]>,
384 pending_refresh: Option<Task<Result<()>>>,
385}
386
387impl ScrollbarMarkerState {
388 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
389 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
390 }
391}
392
393impl Default for ScrollbarMarkerState {
394 fn default() -> Self {
395 Self {
396 scrollbar_size: Size::default(),
397 dirty: false,
398 markers: Arc::from([]),
399 pending_refresh: None,
400 }
401 }
402}
403
404#[derive(Clone, Debug)]
405struct RunnableTasks {
406 templates: Vec<(TaskSourceKind, TaskTemplate)>,
407 offset: MultiBufferOffset,
408 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
409 column: u32,
410 // Values of all named captures, including those starting with '_'
411 extra_variables: HashMap<String, String>,
412 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
413 context_range: Range<BufferOffset>,
414}
415
416#[derive(Clone)]
417struct ResolvedTasks {
418 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
419 position: Anchor,
420}
421#[derive(Copy, Clone, Debug)]
422struct MultiBufferOffset(usize);
423#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
424struct BufferOffset(usize);
425/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
426///
427/// See the [module level documentation](self) for more information.
428pub struct Editor {
429 focus_handle: FocusHandle,
430 /// The text buffer being edited
431 buffer: Model<MultiBuffer>,
432 /// Map of how text in the buffer should be displayed.
433 /// Handles soft wraps, folds, fake inlay text insertions, etc.
434 pub display_map: Model<DisplayMap>,
435 pub selections: SelectionsCollection,
436 pub scroll_manager: ScrollManager,
437 columnar_selection_tail: Option<Anchor>,
438 add_selections_state: Option<AddSelectionsState>,
439 select_next_state: Option<SelectNextState>,
440 select_prev_state: Option<SelectNextState>,
441 selection_history: SelectionHistory,
442 autoclose_regions: Vec<AutocloseRegion>,
443 snippet_stack: InvalidationStack<SnippetState>,
444 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
445 ime_transaction: Option<TransactionId>,
446 active_diagnostics: Option<ActiveDiagnosticGroup>,
447 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
448 project: Option<Model<Project>>,
449 completion_provider: Option<Box<dyn CompletionProvider>>,
450 collaboration_hub: Option<Box<dyn CollaborationHub>>,
451 blink_manager: Model<BlinkManager>,
452 show_cursor_names: bool,
453 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
454 pub show_local_selections: bool,
455 mode: EditorMode,
456 show_breadcrumbs: bool,
457 show_gutter: bool,
458 show_line_numbers: Option<bool>,
459 show_git_diff_gutter: Option<bool>,
460 show_code_actions: Option<bool>,
461 show_wrap_guides: Option<bool>,
462 show_indent_guides: Option<bool>,
463 placeholder_text: Option<Arc<str>>,
464 highlight_order: usize,
465 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
466 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
467 scrollbar_marker_state: ScrollbarMarkerState,
468 active_indent_guides_state: ActiveIndentGuidesState,
469 nav_history: Option<ItemNavHistory>,
470 context_menu: RwLock<Option<ContextMenu>>,
471 mouse_context_menu: Option<MouseContextMenu>,
472 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
473 find_all_references_task_sources: Vec<Anchor>,
474 next_completion_id: CompletionId,
475 completion_documentation_pre_resolve_debounce: DebouncedDelay,
476 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
477 code_actions_task: Option<Task<()>>,
478 document_highlights_task: Option<Task<()>>,
479 pending_rename: Option<RenameState>,
480 searchable: bool,
481 cursor_shape: CursorShape,
482 current_line_highlight: Option<CurrentLineHighlight>,
483 collapse_matches: bool,
484 autoindent_mode: Option<AutoindentMode>,
485 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
486 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
487 input_enabled: bool,
488 use_modal_editing: bool,
489 read_only: bool,
490 leader_peer_id: Option<PeerId>,
491 remote_id: Option<ViewId>,
492 hover_state: HoverState,
493 gutter_hovered: bool,
494 hovered_link_state: Option<HoveredLinkState>,
495 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
496 active_inline_completion: Option<Inlay>,
497 show_inline_completions: bool,
498 inlay_hint_cache: InlayHintCache,
499 expanded_hunks: ExpandedHunks,
500 next_inlay_id: usize,
501 _subscriptions: Vec<Subscription>,
502 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
503 gutter_dimensions: GutterDimensions,
504 pub vim_replace_map: HashMap<Range<usize>, String>,
505 style: Option<EditorStyle>,
506 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
507 use_autoclose: bool,
508 auto_replace_emoji_shortcode: bool,
509 show_git_blame_gutter: bool,
510 show_git_blame_inline: bool,
511 show_git_blame_inline_delay_task: Option<Task<()>>,
512 git_blame_inline_enabled: bool,
513 blame: Option<Model<GitBlame>>,
514 blame_subscription: Option<Subscription>,
515 custom_context_menu: Option<
516 Box<
517 dyn 'static
518 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
519 >,
520 >,
521 last_bounds: Option<Bounds<Pixels>>,
522 expect_bounds_change: Option<Bounds<Pixels>>,
523 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
524 tasks_update_task: Option<Task<()>>,
525 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
526}
527
528#[derive(Clone)]
529pub struct EditorSnapshot {
530 pub mode: EditorMode,
531 show_gutter: bool,
532 show_line_numbers: Option<bool>,
533 show_git_diff_gutter: Option<bool>,
534 show_code_actions: Option<bool>,
535 render_git_blame_gutter: bool,
536 pub display_snapshot: DisplaySnapshot,
537 pub placeholder_text: Option<Arc<str>>,
538 is_focused: bool,
539 scroll_anchor: ScrollAnchor,
540 ongoing_scroll: OngoingScroll,
541 current_line_highlight: CurrentLineHighlight,
542 gutter_hovered: bool,
543}
544
545const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
546
547#[derive(Debug, Clone, Copy)]
548pub struct GutterDimensions {
549 pub left_padding: Pixels,
550 pub right_padding: Pixels,
551 pub width: Pixels,
552 pub margin: Pixels,
553 pub git_blame_entries_width: Option<Pixels>,
554}
555
556impl GutterDimensions {
557 /// The full width of the space taken up by the gutter.
558 pub fn full_width(&self) -> Pixels {
559 self.margin + self.width
560 }
561
562 /// The width of the space reserved for the fold indicators,
563 /// use alongside 'justify_end' and `gutter_width` to
564 /// right align content with the line numbers
565 pub fn fold_area_width(&self) -> Pixels {
566 self.margin + self.right_padding
567 }
568}
569
570impl Default for GutterDimensions {
571 fn default() -> Self {
572 Self {
573 left_padding: Pixels::ZERO,
574 right_padding: Pixels::ZERO,
575 width: Pixels::ZERO,
576 margin: Pixels::ZERO,
577 git_blame_entries_width: None,
578 }
579 }
580}
581
582#[derive(Debug)]
583pub struct RemoteSelection {
584 pub replica_id: ReplicaId,
585 pub selection: Selection<Anchor>,
586 pub cursor_shape: CursorShape,
587 pub peer_id: PeerId,
588 pub line_mode: bool,
589 pub participant_index: Option<ParticipantIndex>,
590 pub user_name: Option<SharedString>,
591}
592
593#[derive(Clone, Debug)]
594struct SelectionHistoryEntry {
595 selections: Arc<[Selection<Anchor>]>,
596 select_next_state: Option<SelectNextState>,
597 select_prev_state: Option<SelectNextState>,
598 add_selections_state: Option<AddSelectionsState>,
599}
600
601enum SelectionHistoryMode {
602 Normal,
603 Undoing,
604 Redoing,
605}
606
607#[derive(Clone, PartialEq, Eq, Hash)]
608struct HoveredCursor {
609 replica_id: u16,
610 selection_id: usize,
611}
612
613impl Default for SelectionHistoryMode {
614 fn default() -> Self {
615 Self::Normal
616 }
617}
618
619#[derive(Default)]
620struct SelectionHistory {
621 #[allow(clippy::type_complexity)]
622 selections_by_transaction:
623 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
624 mode: SelectionHistoryMode,
625 undo_stack: VecDeque<SelectionHistoryEntry>,
626 redo_stack: VecDeque<SelectionHistoryEntry>,
627}
628
629impl SelectionHistory {
630 fn insert_transaction(
631 &mut self,
632 transaction_id: TransactionId,
633 selections: Arc<[Selection<Anchor>]>,
634 ) {
635 self.selections_by_transaction
636 .insert(transaction_id, (selections, None));
637 }
638
639 #[allow(clippy::type_complexity)]
640 fn transaction(
641 &self,
642 transaction_id: TransactionId,
643 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
644 self.selections_by_transaction.get(&transaction_id)
645 }
646
647 #[allow(clippy::type_complexity)]
648 fn transaction_mut(
649 &mut self,
650 transaction_id: TransactionId,
651 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
652 self.selections_by_transaction.get_mut(&transaction_id)
653 }
654
655 fn push(&mut self, entry: SelectionHistoryEntry) {
656 if !entry.selections.is_empty() {
657 match self.mode {
658 SelectionHistoryMode::Normal => {
659 self.push_undo(entry);
660 self.redo_stack.clear();
661 }
662 SelectionHistoryMode::Undoing => self.push_redo(entry),
663 SelectionHistoryMode::Redoing => self.push_undo(entry),
664 }
665 }
666 }
667
668 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
669 if self
670 .undo_stack
671 .back()
672 .map_or(true, |e| e.selections != entry.selections)
673 {
674 self.undo_stack.push_back(entry);
675 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
676 self.undo_stack.pop_front();
677 }
678 }
679 }
680
681 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
682 if self
683 .redo_stack
684 .back()
685 .map_or(true, |e| e.selections != entry.selections)
686 {
687 self.redo_stack.push_back(entry);
688 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
689 self.redo_stack.pop_front();
690 }
691 }
692 }
693}
694
695struct RowHighlight {
696 index: usize,
697 range: RangeInclusive<Anchor>,
698 color: Option<Hsla>,
699 should_autoscroll: bool,
700}
701
702#[derive(Clone, Debug)]
703struct AddSelectionsState {
704 above: bool,
705 stack: Vec<usize>,
706}
707
708#[derive(Clone)]
709struct SelectNextState {
710 query: AhoCorasick,
711 wordwise: bool,
712 done: bool,
713}
714
715impl std::fmt::Debug for SelectNextState {
716 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
717 f.debug_struct(std::any::type_name::<Self>())
718 .field("wordwise", &self.wordwise)
719 .field("done", &self.done)
720 .finish()
721 }
722}
723
724#[derive(Debug)]
725struct AutocloseRegion {
726 selection_id: usize,
727 range: Range<Anchor>,
728 pair: BracketPair,
729}
730
731#[derive(Debug)]
732struct SnippetState {
733 ranges: Vec<Vec<Range<Anchor>>>,
734 active_index: usize,
735}
736
737#[doc(hidden)]
738pub struct RenameState {
739 pub range: Range<Anchor>,
740 pub old_name: Arc<str>,
741 pub editor: View<Editor>,
742 block_id: BlockId,
743}
744
745struct InvalidationStack<T>(Vec<T>);
746
747struct RegisteredInlineCompletionProvider {
748 provider: Arc<dyn InlineCompletionProviderHandle>,
749 _subscription: Subscription,
750}
751
752enum ContextMenu {
753 Completions(CompletionsMenu),
754 CodeActions(CodeActionsMenu),
755}
756
757impl ContextMenu {
758 fn select_first(
759 &mut self,
760 project: Option<&Model<Project>>,
761 cx: &mut ViewContext<Editor>,
762 ) -> bool {
763 if self.visible() {
764 match self {
765 ContextMenu::Completions(menu) => menu.select_first(project, cx),
766 ContextMenu::CodeActions(menu) => menu.select_first(cx),
767 }
768 true
769 } else {
770 false
771 }
772 }
773
774 fn select_prev(
775 &mut self,
776 project: Option<&Model<Project>>,
777 cx: &mut ViewContext<Editor>,
778 ) -> bool {
779 if self.visible() {
780 match self {
781 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
782 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
783 }
784 true
785 } else {
786 false
787 }
788 }
789
790 fn select_next(
791 &mut self,
792 project: Option<&Model<Project>>,
793 cx: &mut ViewContext<Editor>,
794 ) -> bool {
795 if self.visible() {
796 match self {
797 ContextMenu::Completions(menu) => menu.select_next(project, cx),
798 ContextMenu::CodeActions(menu) => menu.select_next(cx),
799 }
800 true
801 } else {
802 false
803 }
804 }
805
806 fn select_last(
807 &mut self,
808 project: Option<&Model<Project>>,
809 cx: &mut ViewContext<Editor>,
810 ) -> bool {
811 if self.visible() {
812 match self {
813 ContextMenu::Completions(menu) => menu.select_last(project, cx),
814 ContextMenu::CodeActions(menu) => menu.select_last(cx),
815 }
816 true
817 } else {
818 false
819 }
820 }
821
822 fn visible(&self) -> bool {
823 match self {
824 ContextMenu::Completions(menu) => menu.visible(),
825 ContextMenu::CodeActions(menu) => menu.visible(),
826 }
827 }
828
829 fn render(
830 &self,
831 cursor_position: DisplayPoint,
832 style: &EditorStyle,
833 max_height: Pixels,
834 workspace: Option<WeakView<Workspace>>,
835 cx: &mut ViewContext<Editor>,
836 ) -> (ContextMenuOrigin, AnyElement) {
837 match self {
838 ContextMenu::Completions(menu) => (
839 ContextMenuOrigin::EditorPoint(cursor_position),
840 menu.render(style, max_height, workspace, cx),
841 ),
842 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
843 }
844 }
845}
846
847enum ContextMenuOrigin {
848 EditorPoint(DisplayPoint),
849 GutterIndicator(DisplayRow),
850}
851
852#[derive(Clone)]
853struct CompletionsMenu {
854 id: CompletionId,
855 initial_position: Anchor,
856 buffer: Model<Buffer>,
857 completions: Arc<RwLock<Box<[Completion]>>>,
858 match_candidates: Arc<[StringMatchCandidate]>,
859 matches: Arc<[StringMatch]>,
860 selected_item: usize,
861 scroll_handle: UniformListScrollHandle,
862 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
863}
864
865impl CompletionsMenu {
866 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
867 self.selected_item = 0;
868 self.scroll_handle.scroll_to_item(self.selected_item);
869 self.attempt_resolve_selected_completion_documentation(project, cx);
870 cx.notify();
871 }
872
873 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
874 if self.selected_item > 0 {
875 self.selected_item -= 1;
876 } else {
877 self.selected_item = self.matches.len() - 1;
878 }
879 self.scroll_handle.scroll_to_item(self.selected_item);
880 self.attempt_resolve_selected_completion_documentation(project, cx);
881 cx.notify();
882 }
883
884 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
885 if self.selected_item + 1 < self.matches.len() {
886 self.selected_item += 1;
887 } else {
888 self.selected_item = 0;
889 }
890 self.scroll_handle.scroll_to_item(self.selected_item);
891 self.attempt_resolve_selected_completion_documentation(project, cx);
892 cx.notify();
893 }
894
895 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
896 self.selected_item = self.matches.len() - 1;
897 self.scroll_handle.scroll_to_item(self.selected_item);
898 self.attempt_resolve_selected_completion_documentation(project, cx);
899 cx.notify();
900 }
901
902 fn pre_resolve_completion_documentation(
903 buffer: Model<Buffer>,
904 completions: Arc<RwLock<Box<[Completion]>>>,
905 matches: Arc<[StringMatch]>,
906 editor: &Editor,
907 cx: &mut ViewContext<Editor>,
908 ) -> Task<()> {
909 let settings = EditorSettings::get_global(cx);
910 if !settings.show_completion_documentation {
911 return Task::ready(());
912 }
913
914 let Some(provider) = editor.completion_provider.as_ref() else {
915 return Task::ready(());
916 };
917
918 let resolve_task = provider.resolve_completions(
919 buffer,
920 matches.iter().map(|m| m.candidate_id).collect(),
921 completions.clone(),
922 cx,
923 );
924
925 return cx.spawn(move |this, mut cx| async move {
926 if let Some(true) = resolve_task.await.log_err() {
927 this.update(&mut cx, |_, cx| cx.notify()).ok();
928 }
929 });
930 }
931
932 fn attempt_resolve_selected_completion_documentation(
933 &mut self,
934 project: Option<&Model<Project>>,
935 cx: &mut ViewContext<Editor>,
936 ) {
937 let settings = EditorSettings::get_global(cx);
938 if !settings.show_completion_documentation {
939 return;
940 }
941
942 let completion_index = self.matches[self.selected_item].candidate_id;
943 let Some(project) = project else {
944 return;
945 };
946
947 let resolve_task = project.update(cx, |project, cx| {
948 project.resolve_completions(
949 self.buffer.clone(),
950 vec![completion_index],
951 self.completions.clone(),
952 cx,
953 )
954 });
955
956 let delay_ms =
957 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
958 let delay = Duration::from_millis(delay_ms);
959
960 self.selected_completion_documentation_resolve_debounce
961 .lock()
962 .fire_new(delay, cx, |_, cx| {
963 cx.spawn(move |this, mut cx| async move {
964 if let Some(true) = resolve_task.await.log_err() {
965 this.update(&mut cx, |_, cx| cx.notify()).ok();
966 }
967 })
968 });
969 }
970
971 fn visible(&self) -> bool {
972 !self.matches.is_empty()
973 }
974
975 fn render(
976 &self,
977 style: &EditorStyle,
978 max_height: Pixels,
979 workspace: Option<WeakView<Workspace>>,
980 cx: &mut ViewContext<Editor>,
981 ) -> AnyElement {
982 let settings = EditorSettings::get_global(cx);
983 let show_completion_documentation = settings.show_completion_documentation;
984
985 let widest_completion_ix = self
986 .matches
987 .iter()
988 .enumerate()
989 .max_by_key(|(_, mat)| {
990 let completions = self.completions.read();
991 let completion = &completions[mat.candidate_id];
992 let documentation = &completion.documentation;
993
994 let mut len = completion.label.text.chars().count();
995 if let Some(Documentation::SingleLine(text)) = documentation {
996 if show_completion_documentation {
997 len += text.chars().count();
998 }
999 }
1000
1001 len
1002 })
1003 .map(|(ix, _)| ix);
1004
1005 let completions = self.completions.clone();
1006 let matches = self.matches.clone();
1007 let selected_item = self.selected_item;
1008 let style = style.clone();
1009
1010 let multiline_docs = if show_completion_documentation {
1011 let mat = &self.matches[selected_item];
1012 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1013 Some(Documentation::MultiLinePlainText(text)) => {
1014 Some(div().child(SharedString::from(text.clone())))
1015 }
1016 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1017 Some(div().child(render_parsed_markdown(
1018 "completions_markdown",
1019 parsed,
1020 &style,
1021 workspace,
1022 cx,
1023 )))
1024 }
1025 _ => None,
1026 };
1027 multiline_docs.map(|div| {
1028 div.id("multiline_docs")
1029 .max_h(max_height)
1030 .flex_1()
1031 .px_1p5()
1032 .py_1()
1033 .min_w(px(260.))
1034 .max_w(px(640.))
1035 .w(px(500.))
1036 .overflow_y_scroll()
1037 .occlude()
1038 })
1039 } else {
1040 None
1041 };
1042
1043 let list = uniform_list(
1044 cx.view().clone(),
1045 "completions",
1046 matches.len(),
1047 move |_editor, range, cx| {
1048 let start_ix = range.start;
1049 let completions_guard = completions.read();
1050
1051 matches[range]
1052 .iter()
1053 .enumerate()
1054 .map(|(ix, mat)| {
1055 let item_ix = start_ix + ix;
1056 let candidate_id = mat.candidate_id;
1057 let completion = &completions_guard[candidate_id];
1058
1059 let documentation = if show_completion_documentation {
1060 &completion.documentation
1061 } else {
1062 &None
1063 };
1064
1065 let highlights = gpui::combine_highlights(
1066 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1067 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1068 |(range, mut highlight)| {
1069 // Ignore font weight for syntax highlighting, as we'll use it
1070 // for fuzzy matches.
1071 highlight.font_weight = None;
1072
1073 if completion.lsp_completion.deprecated.unwrap_or(false) {
1074 highlight.strikethrough = Some(StrikethroughStyle {
1075 thickness: 1.0.into(),
1076 ..Default::default()
1077 });
1078 highlight.color = Some(cx.theme().colors().text_muted);
1079 }
1080
1081 (range, highlight)
1082 },
1083 ),
1084 );
1085 let completion_label = StyledText::new(completion.label.text.clone())
1086 .with_highlights(&style.text, highlights);
1087 let documentation_label =
1088 if let Some(Documentation::SingleLine(text)) = documentation {
1089 if text.trim().is_empty() {
1090 None
1091 } else {
1092 Some(
1093 h_flex().ml_4().child(
1094 Label::new(text.clone())
1095 .size(LabelSize::Small)
1096 .color(Color::Muted),
1097 ),
1098 )
1099 }
1100 } else {
1101 None
1102 };
1103
1104 div().min_w(px(220.)).max_w(px(540.)).child(
1105 ListItem::new(mat.candidate_id)
1106 .inset(true)
1107 .selected(item_ix == selected_item)
1108 .on_click(cx.listener(move |editor, _event, cx| {
1109 cx.stop_propagation();
1110 if let Some(task) = editor.confirm_completion(
1111 &ConfirmCompletion {
1112 item_ix: Some(item_ix),
1113 },
1114 cx,
1115 ) {
1116 task.detach_and_log_err(cx)
1117 }
1118 }))
1119 .child(h_flex().overflow_hidden().child(completion_label))
1120 .end_slot::<Div>(documentation_label),
1121 )
1122 })
1123 .collect()
1124 },
1125 )
1126 .occlude()
1127 .max_h(max_height)
1128 .track_scroll(self.scroll_handle.clone())
1129 .with_width_from_item(widest_completion_ix)
1130 .with_sizing_behavior(ListSizingBehavior::Infer);
1131
1132 Popover::new()
1133 .child(list)
1134 .when_some(multiline_docs, |popover, multiline_docs| {
1135 popover.aside(multiline_docs)
1136 })
1137 .into_any_element()
1138 }
1139
1140 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1141 let mut matches = if let Some(query) = query {
1142 fuzzy::match_strings(
1143 &self.match_candidates,
1144 query,
1145 query.chars().any(|c| c.is_uppercase()),
1146 100,
1147 &Default::default(),
1148 executor,
1149 )
1150 .await
1151 } else {
1152 self.match_candidates
1153 .iter()
1154 .enumerate()
1155 .map(|(candidate_id, candidate)| StringMatch {
1156 candidate_id,
1157 score: Default::default(),
1158 positions: Default::default(),
1159 string: candidate.string.clone(),
1160 })
1161 .collect()
1162 };
1163
1164 // Remove all candidates where the query's start does not match the start of any word in the candidate
1165 if let Some(query) = query {
1166 if let Some(query_start) = query.chars().next() {
1167 matches.retain(|string_match| {
1168 split_words(&string_match.string).any(|word| {
1169 // Check that the first codepoint of the word as lowercase matches the first
1170 // codepoint of the query as lowercase
1171 word.chars()
1172 .flat_map(|codepoint| codepoint.to_lowercase())
1173 .zip(query_start.to_lowercase())
1174 .all(|(word_cp, query_cp)| word_cp == query_cp)
1175 })
1176 });
1177 }
1178 }
1179
1180 let completions = self.completions.read();
1181 matches.sort_unstable_by_key(|mat| {
1182 // We do want to strike a balance here between what the language server tells us
1183 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1184 // `Creat` and there is a local variable called `CreateComponent`).
1185 // So what we do is: we bucket all matches into two buckets
1186 // - Strong matches
1187 // - Weak matches
1188 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1189 // and the Weak matches are the rest.
1190 //
1191 // For the strong matches, we sort by the language-servers score first and for the weak
1192 // matches, we prefer our fuzzy finder first.
1193 //
1194 // The thinking behind that: it's useless to take the sort_text the language-server gives
1195 // us into account when it's obviously a bad match.
1196
1197 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1198 enum MatchScore<'a> {
1199 Strong {
1200 sort_text: Option<&'a str>,
1201 score: Reverse<OrderedFloat<f64>>,
1202 sort_key: (usize, &'a str),
1203 },
1204 Weak {
1205 score: Reverse<OrderedFloat<f64>>,
1206 sort_text: Option<&'a str>,
1207 sort_key: (usize, &'a str),
1208 },
1209 }
1210
1211 let completion = &completions[mat.candidate_id];
1212 let sort_key = completion.sort_key();
1213 let sort_text = completion.lsp_completion.sort_text.as_deref();
1214 let score = Reverse(OrderedFloat(mat.score));
1215
1216 if mat.score >= 0.2 {
1217 MatchScore::Strong {
1218 sort_text,
1219 score,
1220 sort_key,
1221 }
1222 } else {
1223 MatchScore::Weak {
1224 score,
1225 sort_text,
1226 sort_key,
1227 }
1228 }
1229 });
1230
1231 for mat in &mut matches {
1232 let completion = &completions[mat.candidate_id];
1233 mat.string.clone_from(&completion.label.text);
1234 for position in &mut mat.positions {
1235 *position += completion.label.filter_range.start;
1236 }
1237 }
1238 drop(completions);
1239
1240 self.matches = matches.into();
1241 self.selected_item = 0;
1242 }
1243}
1244
1245#[derive(Clone)]
1246struct CodeActionContents {
1247 tasks: Option<Arc<ResolvedTasks>>,
1248 actions: Option<Arc<[CodeAction]>>,
1249}
1250
1251impl CodeActionContents {
1252 fn len(&self) -> usize {
1253 match (&self.tasks, &self.actions) {
1254 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1255 (Some(tasks), None) => tasks.templates.len(),
1256 (None, Some(actions)) => actions.len(),
1257 (None, None) => 0,
1258 }
1259 }
1260
1261 fn is_empty(&self) -> bool {
1262 match (&self.tasks, &self.actions) {
1263 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1264 (Some(tasks), None) => tasks.templates.is_empty(),
1265 (None, Some(actions)) => actions.is_empty(),
1266 (None, None) => true,
1267 }
1268 }
1269
1270 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1271 self.tasks
1272 .iter()
1273 .flat_map(|tasks| {
1274 tasks
1275 .templates
1276 .iter()
1277 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1278 })
1279 .chain(self.actions.iter().flat_map(|actions| {
1280 actions
1281 .iter()
1282 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1283 }))
1284 }
1285 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1286 match (&self.tasks, &self.actions) {
1287 (Some(tasks), Some(actions)) => {
1288 if index < tasks.templates.len() {
1289 tasks
1290 .templates
1291 .get(index)
1292 .cloned()
1293 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1294 } else {
1295 actions
1296 .get(index - tasks.templates.len())
1297 .cloned()
1298 .map(CodeActionsItem::CodeAction)
1299 }
1300 }
1301 (Some(tasks), None) => tasks
1302 .templates
1303 .get(index)
1304 .cloned()
1305 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1306 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1307 (None, None) => None,
1308 }
1309 }
1310}
1311
1312#[allow(clippy::large_enum_variant)]
1313#[derive(Clone)]
1314enum CodeActionsItem {
1315 Task(TaskSourceKind, ResolvedTask),
1316 CodeAction(CodeAction),
1317}
1318
1319impl CodeActionsItem {
1320 fn as_task(&self) -> Option<&ResolvedTask> {
1321 let Self::Task(_, task) = self else {
1322 return None;
1323 };
1324 Some(task)
1325 }
1326 fn as_code_action(&self) -> Option<&CodeAction> {
1327 let Self::CodeAction(action) = self else {
1328 return None;
1329 };
1330 Some(action)
1331 }
1332 fn label(&self) -> String {
1333 match self {
1334 Self::CodeAction(action) => action.lsp_action.title.clone(),
1335 Self::Task(_, task) => task.resolved_label.clone(),
1336 }
1337 }
1338}
1339
1340struct CodeActionsMenu {
1341 actions: CodeActionContents,
1342 buffer: Model<Buffer>,
1343 selected_item: usize,
1344 scroll_handle: UniformListScrollHandle,
1345 deployed_from_indicator: Option<DisplayRow>,
1346}
1347
1348impl CodeActionsMenu {
1349 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1350 self.selected_item = 0;
1351 self.scroll_handle.scroll_to_item(self.selected_item);
1352 cx.notify()
1353 }
1354
1355 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1356 if self.selected_item > 0 {
1357 self.selected_item -= 1;
1358 } else {
1359 self.selected_item = self.actions.len() - 1;
1360 }
1361 self.scroll_handle.scroll_to_item(self.selected_item);
1362 cx.notify();
1363 }
1364
1365 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1366 if self.selected_item + 1 < self.actions.len() {
1367 self.selected_item += 1;
1368 } else {
1369 self.selected_item = 0;
1370 }
1371 self.scroll_handle.scroll_to_item(self.selected_item);
1372 cx.notify();
1373 }
1374
1375 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1376 self.selected_item = self.actions.len() - 1;
1377 self.scroll_handle.scroll_to_item(self.selected_item);
1378 cx.notify()
1379 }
1380
1381 fn visible(&self) -> bool {
1382 !self.actions.is_empty()
1383 }
1384
1385 fn render(
1386 &self,
1387 cursor_position: DisplayPoint,
1388 _style: &EditorStyle,
1389 max_height: Pixels,
1390 cx: &mut ViewContext<Editor>,
1391 ) -> (ContextMenuOrigin, AnyElement) {
1392 let actions = self.actions.clone();
1393 let selected_item = self.selected_item;
1394 let element = uniform_list(
1395 cx.view().clone(),
1396 "code_actions_menu",
1397 self.actions.len(),
1398 move |_this, range, cx| {
1399 actions
1400 .iter()
1401 .skip(range.start)
1402 .take(range.end - range.start)
1403 .enumerate()
1404 .map(|(ix, action)| {
1405 let item_ix = range.start + ix;
1406 let selected = selected_item == item_ix;
1407 let colors = cx.theme().colors();
1408 div()
1409 .px_2()
1410 .text_color(colors.text)
1411 .when(selected, |style| {
1412 style
1413 .bg(colors.element_active)
1414 .text_color(colors.text_accent)
1415 })
1416 .hover(|style| {
1417 style
1418 .bg(colors.element_hover)
1419 .text_color(colors.text_accent)
1420 })
1421 .whitespace_nowrap()
1422 .when_some(action.as_code_action(), |this, action| {
1423 this.on_mouse_down(
1424 MouseButton::Left,
1425 cx.listener(move |editor, _, cx| {
1426 cx.stop_propagation();
1427 if let Some(task) = editor.confirm_code_action(
1428 &ConfirmCodeAction {
1429 item_ix: Some(item_ix),
1430 },
1431 cx,
1432 ) {
1433 task.detach_and_log_err(cx)
1434 }
1435 }),
1436 )
1437 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1438 .child(SharedString::from(action.lsp_action.title.clone()))
1439 })
1440 .when_some(action.as_task(), |this, task| {
1441 this.on_mouse_down(
1442 MouseButton::Left,
1443 cx.listener(move |editor, _, cx| {
1444 cx.stop_propagation();
1445 if let Some(task) = editor.confirm_code_action(
1446 &ConfirmCodeAction {
1447 item_ix: Some(item_ix),
1448 },
1449 cx,
1450 ) {
1451 task.detach_and_log_err(cx)
1452 }
1453 }),
1454 )
1455 .child(SharedString::from(task.resolved_label.clone()))
1456 })
1457 })
1458 .collect()
1459 },
1460 )
1461 .elevation_1(cx)
1462 .px_2()
1463 .py_1()
1464 .max_h(max_height)
1465 .occlude()
1466 .track_scroll(self.scroll_handle.clone())
1467 .with_width_from_item(
1468 self.actions
1469 .iter()
1470 .enumerate()
1471 .max_by_key(|(_, action)| match action {
1472 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1473 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1474 })
1475 .map(|(ix, _)| ix),
1476 )
1477 .with_sizing_behavior(ListSizingBehavior::Infer)
1478 .into_any_element();
1479
1480 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1481 ContextMenuOrigin::GutterIndicator(row)
1482 } else {
1483 ContextMenuOrigin::EditorPoint(cursor_position)
1484 };
1485
1486 (cursor_position, element)
1487 }
1488}
1489
1490#[derive(Debug)]
1491struct ActiveDiagnosticGroup {
1492 primary_range: Range<Anchor>,
1493 primary_message: String,
1494 group_id: usize,
1495 blocks: HashMap<BlockId, Diagnostic>,
1496 is_valid: bool,
1497}
1498
1499#[derive(Serialize, Deserialize)]
1500pub struct ClipboardSelection {
1501 pub len: usize,
1502 pub is_entire_line: bool,
1503 pub first_line_indent: u32,
1504}
1505
1506#[derive(Debug)]
1507pub(crate) struct NavigationData {
1508 cursor_anchor: Anchor,
1509 cursor_position: Point,
1510 scroll_anchor: ScrollAnchor,
1511 scroll_top_row: u32,
1512}
1513
1514enum GotoDefinitionKind {
1515 Symbol,
1516 Type,
1517 Implementation,
1518}
1519
1520#[derive(Debug, Clone)]
1521enum InlayHintRefreshReason {
1522 Toggle(bool),
1523 SettingsChange(InlayHintSettings),
1524 NewLinesShown,
1525 BufferEdited(HashSet<Arc<Language>>),
1526 RefreshRequested,
1527 ExcerptsRemoved(Vec<ExcerptId>),
1528}
1529
1530impl InlayHintRefreshReason {
1531 fn description(&self) -> &'static str {
1532 match self {
1533 Self::Toggle(_) => "toggle",
1534 Self::SettingsChange(_) => "settings change",
1535 Self::NewLinesShown => "new lines shown",
1536 Self::BufferEdited(_) => "buffer edited",
1537 Self::RefreshRequested => "refresh requested",
1538 Self::ExcerptsRemoved(_) => "excerpts removed",
1539 }
1540 }
1541}
1542
1543impl Editor {
1544 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1545 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1546 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1547 Self::new(EditorMode::SingleLine, buffer, None, false, cx)
1548 }
1549
1550 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1551 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1552 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1553 Self::new(EditorMode::Full, buffer, None, false, cx)
1554 }
1555
1556 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1557 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1558 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1559 Self::new(
1560 EditorMode::AutoHeight { max_lines },
1561 buffer,
1562 None,
1563 false,
1564 cx,
1565 )
1566 }
1567
1568 pub fn for_buffer(
1569 buffer: Model<Buffer>,
1570 project: Option<Model<Project>>,
1571 cx: &mut ViewContext<Self>,
1572 ) -> Self {
1573 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1574 Self::new(EditorMode::Full, buffer, project, false, cx)
1575 }
1576
1577 pub fn for_multibuffer(
1578 buffer: Model<MultiBuffer>,
1579 project: Option<Model<Project>>,
1580 show_excerpt_controls: bool,
1581 cx: &mut ViewContext<Self>,
1582 ) -> Self {
1583 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1584 }
1585
1586 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1587 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1588 let mut clone = Self::new(
1589 self.mode,
1590 self.buffer.clone(),
1591 self.project.clone(),
1592 show_excerpt_controls,
1593 cx,
1594 );
1595 self.display_map.update(cx, |display_map, cx| {
1596 let snapshot = display_map.snapshot(cx);
1597 clone.display_map.update(cx, |display_map, cx| {
1598 display_map.set_state(&snapshot, cx);
1599 });
1600 });
1601 clone.selections.clone_state(&self.selections);
1602 clone.scroll_manager.clone_state(&self.scroll_manager);
1603 clone.searchable = self.searchable;
1604 clone
1605 }
1606
1607 fn new(
1608 mode: EditorMode,
1609 buffer: Model<MultiBuffer>,
1610 project: Option<Model<Project>>,
1611 show_excerpt_controls: bool,
1612 cx: &mut ViewContext<Self>,
1613 ) -> Self {
1614 let style = cx.text_style();
1615 let font_size = style.font_size.to_pixels(cx.rem_size());
1616 let editor = cx.view().downgrade();
1617 let fold_placeholder = FoldPlaceholder {
1618 constrain_width: true,
1619 render: Arc::new(move |fold_id, fold_range, cx| {
1620 let editor = editor.clone();
1621 div()
1622 .id(fold_id)
1623 .bg(cx.theme().colors().ghost_element_background)
1624 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1625 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1626 .rounded_sm()
1627 .size_full()
1628 .cursor_pointer()
1629 .child("⋯")
1630 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1631 .on_click(move |_, cx| {
1632 editor
1633 .update(cx, |editor, cx| {
1634 editor.unfold_ranges(
1635 [fold_range.start..fold_range.end],
1636 true,
1637 false,
1638 cx,
1639 );
1640 cx.stop_propagation();
1641 })
1642 .ok();
1643 })
1644 .into_any()
1645 }),
1646 merge_adjacent: true,
1647 };
1648 let display_map = cx.new_model(|cx| {
1649 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1650
1651 DisplayMap::new(
1652 buffer.clone(),
1653 style.font(),
1654 font_size,
1655 None,
1656 show_excerpt_controls,
1657 file_header_size,
1658 1,
1659 1,
1660 fold_placeholder,
1661 cx,
1662 )
1663 });
1664
1665 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1666
1667 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1668
1669 let soft_wrap_mode_override =
1670 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1671
1672 let mut project_subscriptions = Vec::new();
1673 if mode == EditorMode::Full {
1674 if let Some(project) = project.as_ref() {
1675 if buffer.read(cx).is_singleton() {
1676 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1677 cx.emit(EditorEvent::TitleChanged);
1678 }));
1679 }
1680 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1681 if let project::Event::RefreshInlayHints = event {
1682 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1683 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1684 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1685 let focus_handle = editor.focus_handle(cx);
1686 if focus_handle.is_focused(cx) {
1687 let snapshot = buffer.read(cx).snapshot();
1688 for (range, snippet) in snippet_edits {
1689 let editor_range =
1690 language::range_from_lsp(*range).to_offset(&snapshot);
1691 editor
1692 .insert_snippet(&[editor_range], snippet.clone(), cx)
1693 .ok();
1694 }
1695 }
1696 }
1697 }
1698 }));
1699 let task_inventory = project.read(cx).task_inventory().clone();
1700 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1701 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1702 }));
1703 }
1704 }
1705
1706 let inlay_hint_settings = inlay_hint_settings(
1707 selections.newest_anchor().head(),
1708 &buffer.read(cx).snapshot(cx),
1709 cx,
1710 );
1711 let focus_handle = cx.focus_handle();
1712 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1713 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1714
1715 let show_indent_guides = if mode == EditorMode::SingleLine {
1716 Some(false)
1717 } else {
1718 None
1719 };
1720
1721 let mut this = Self {
1722 focus_handle,
1723 buffer: buffer.clone(),
1724 display_map: display_map.clone(),
1725 selections,
1726 scroll_manager: ScrollManager::new(cx),
1727 columnar_selection_tail: None,
1728 add_selections_state: None,
1729 select_next_state: None,
1730 select_prev_state: None,
1731 selection_history: Default::default(),
1732 autoclose_regions: Default::default(),
1733 snippet_stack: Default::default(),
1734 select_larger_syntax_node_stack: Vec::new(),
1735 ime_transaction: Default::default(),
1736 active_diagnostics: None,
1737 soft_wrap_mode_override,
1738 completion_provider: project.clone().map(|project| Box::new(project) as _),
1739 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1740 project,
1741 blink_manager: blink_manager.clone(),
1742 show_local_selections: true,
1743 mode,
1744 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1745 show_gutter: mode == EditorMode::Full,
1746 show_line_numbers: None,
1747 show_git_diff_gutter: None,
1748 show_code_actions: None,
1749 show_wrap_guides: None,
1750 show_indent_guides,
1751 placeholder_text: None,
1752 highlight_order: 0,
1753 highlighted_rows: HashMap::default(),
1754 background_highlights: Default::default(),
1755 scrollbar_marker_state: ScrollbarMarkerState::default(),
1756 active_indent_guides_state: ActiveIndentGuidesState::default(),
1757 nav_history: None,
1758 context_menu: RwLock::new(None),
1759 mouse_context_menu: None,
1760 completion_tasks: Default::default(),
1761 find_all_references_task_sources: Vec::new(),
1762 next_completion_id: 0,
1763 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1764 next_inlay_id: 0,
1765 available_code_actions: Default::default(),
1766 code_actions_task: Default::default(),
1767 document_highlights_task: Default::default(),
1768 pending_rename: Default::default(),
1769 searchable: true,
1770 cursor_shape: Default::default(),
1771 current_line_highlight: None,
1772 autoindent_mode: Some(AutoindentMode::EachLine),
1773 collapse_matches: false,
1774 workspace: None,
1775 keymap_context_layers: Default::default(),
1776 input_enabled: true,
1777 use_modal_editing: mode == EditorMode::Full,
1778 read_only: false,
1779 use_autoclose: true,
1780 auto_replace_emoji_shortcode: false,
1781 leader_peer_id: None,
1782 remote_id: None,
1783 hover_state: Default::default(),
1784 hovered_link_state: Default::default(),
1785 inline_completion_provider: None,
1786 active_inline_completion: None,
1787 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1788 expanded_hunks: ExpandedHunks::default(),
1789 gutter_hovered: false,
1790 pixel_position_of_newest_cursor: None,
1791 last_bounds: None,
1792 expect_bounds_change: None,
1793 gutter_dimensions: GutterDimensions::default(),
1794 style: None,
1795 show_cursor_names: false,
1796 hovered_cursors: Default::default(),
1797 editor_actions: Default::default(),
1798 vim_replace_map: Default::default(),
1799 show_inline_completions: mode == EditorMode::Full,
1800 custom_context_menu: None,
1801 show_git_blame_gutter: false,
1802 show_git_blame_inline: false,
1803 show_git_blame_inline_delay_task: None,
1804 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1805 blame: None,
1806 blame_subscription: None,
1807 tasks: Default::default(),
1808 _subscriptions: vec![
1809 cx.observe(&buffer, Self::on_buffer_changed),
1810 cx.subscribe(&buffer, Self::on_buffer_event),
1811 cx.observe(&display_map, Self::on_display_map_changed),
1812 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1813 cx.observe_global::<SettingsStore>(Self::settings_changed),
1814 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1815 cx.observe_window_activation(|editor, cx| {
1816 let active = cx.is_window_active();
1817 editor.blink_manager.update(cx, |blink_manager, cx| {
1818 if active {
1819 blink_manager.enable(cx);
1820 } else {
1821 blink_manager.show_cursor(cx);
1822 blink_manager.disable(cx);
1823 }
1824 });
1825 }),
1826 ],
1827 tasks_update_task: None,
1828 previous_search_ranges: None,
1829 };
1830 this.tasks_update_task = Some(this.refresh_runnables(cx));
1831 this._subscriptions.extend(project_subscriptions);
1832
1833 this.end_selection(cx);
1834 this.scroll_manager.show_scrollbar(cx);
1835
1836 if mode == EditorMode::Full {
1837 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1838 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1839
1840 if this.git_blame_inline_enabled {
1841 this.git_blame_inline_enabled = true;
1842 this.start_git_blame_inline(false, cx);
1843 }
1844 }
1845
1846 this.report_editor_event("open", None, cx);
1847 this
1848 }
1849
1850 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1851 self.mouse_context_menu
1852 .as_ref()
1853 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1854 }
1855
1856 fn key_context(&self, cx: &AppContext) -> KeyContext {
1857 let mut key_context = KeyContext::new_with_defaults();
1858 key_context.add("Editor");
1859 let mode = match self.mode {
1860 EditorMode::SingleLine => "single_line",
1861 EditorMode::AutoHeight { .. } => "auto_height",
1862 EditorMode::Full => "full",
1863 };
1864 key_context.set("mode", mode);
1865 if self.pending_rename.is_some() {
1866 key_context.add("renaming");
1867 }
1868 if self.context_menu_visible() {
1869 match self.context_menu.read().as_ref() {
1870 Some(ContextMenu::Completions(_)) => {
1871 key_context.add("menu");
1872 key_context.add("showing_completions")
1873 }
1874 Some(ContextMenu::CodeActions(_)) => {
1875 key_context.add("menu");
1876 key_context.add("showing_code_actions")
1877 }
1878 None => {}
1879 }
1880 }
1881
1882 for layer in self.keymap_context_layers.values() {
1883 key_context.extend(layer);
1884 }
1885
1886 if let Some(extension) = self
1887 .buffer
1888 .read(cx)
1889 .as_singleton()
1890 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1891 {
1892 key_context.set("extension", extension.to_string());
1893 }
1894
1895 if self.has_active_inline_completion(cx) {
1896 key_context.add("copilot_suggestion");
1897 key_context.add("inline_completion");
1898 }
1899
1900 key_context
1901 }
1902
1903 pub fn new_file(
1904 workspace: &mut Workspace,
1905 _: &workspace::NewFile,
1906 cx: &mut ViewContext<Workspace>,
1907 ) {
1908 let project = workspace.project().clone();
1909 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1910
1911 cx.spawn(|workspace, mut cx| async move {
1912 let buffer = create.await?;
1913 workspace.update(&mut cx, |workspace, cx| {
1914 workspace.add_item_to_active_pane(
1915 Box::new(
1916 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1917 ),
1918 None,
1919 cx,
1920 )
1921 })
1922 })
1923 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1924 ErrorCode::RemoteUpgradeRequired => Some(format!(
1925 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1926 e.error_tag("required").unwrap_or("the latest version")
1927 )),
1928 _ => None,
1929 });
1930 }
1931
1932 pub fn new_file_in_direction(
1933 workspace: &mut Workspace,
1934 action: &workspace::NewFileInDirection,
1935 cx: &mut ViewContext<Workspace>,
1936 ) {
1937 let project = workspace.project().clone();
1938 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1939 let direction = action.0;
1940
1941 cx.spawn(|workspace, mut cx| async move {
1942 let buffer = create.await?;
1943 workspace.update(&mut cx, move |workspace, cx| {
1944 workspace.split_item(
1945 direction,
1946 Box::new(
1947 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1948 ),
1949 cx,
1950 )
1951 })?;
1952 anyhow::Ok(())
1953 })
1954 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1955 ErrorCode::RemoteUpgradeRequired => Some(format!(
1956 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1957 e.error_tag("required").unwrap_or("the latest version")
1958 )),
1959 _ => None,
1960 });
1961 }
1962
1963 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1964 self.buffer.read(cx).replica_id()
1965 }
1966
1967 pub fn leader_peer_id(&self) -> Option<PeerId> {
1968 self.leader_peer_id
1969 }
1970
1971 pub fn buffer(&self) -> &Model<MultiBuffer> {
1972 &self.buffer
1973 }
1974
1975 pub fn workspace(&self) -> Option<View<Workspace>> {
1976 self.workspace.as_ref()?.0.upgrade()
1977 }
1978
1979 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1980 self.buffer().read(cx).title(cx)
1981 }
1982
1983 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1984 EditorSnapshot {
1985 mode: self.mode,
1986 show_gutter: self.show_gutter,
1987 show_line_numbers: self.show_line_numbers,
1988 show_git_diff_gutter: self.show_git_diff_gutter,
1989 show_code_actions: self.show_code_actions,
1990 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1991 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1992 scroll_anchor: self.scroll_manager.anchor(),
1993 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1994 placeholder_text: self.placeholder_text.clone(),
1995 is_focused: self.focus_handle.is_focused(cx),
1996 current_line_highlight: self
1997 .current_line_highlight
1998 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1999 gutter_hovered: self.gutter_hovered,
2000 }
2001 }
2002
2003 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2004 self.buffer.read(cx).language_at(point, cx)
2005 }
2006
2007 pub fn file_at<T: ToOffset>(
2008 &self,
2009 point: T,
2010 cx: &AppContext,
2011 ) -> Option<Arc<dyn language::File>> {
2012 self.buffer.read(cx).read(cx).file_at(point).cloned()
2013 }
2014
2015 pub fn active_excerpt(
2016 &self,
2017 cx: &AppContext,
2018 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2019 self.buffer
2020 .read(cx)
2021 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2022 }
2023
2024 pub fn mode(&self) -> EditorMode {
2025 self.mode
2026 }
2027
2028 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2029 self.collaboration_hub.as_deref()
2030 }
2031
2032 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2033 self.collaboration_hub = Some(hub);
2034 }
2035
2036 pub fn set_custom_context_menu(
2037 &mut self,
2038 f: impl 'static
2039 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2040 ) {
2041 self.custom_context_menu = Some(Box::new(f))
2042 }
2043
2044 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2045 self.completion_provider = Some(provider);
2046 }
2047
2048 pub fn set_inline_completion_provider<T>(
2049 &mut self,
2050 provider: Option<Model<T>>,
2051 cx: &mut ViewContext<Self>,
2052 ) where
2053 T: InlineCompletionProvider,
2054 {
2055 self.inline_completion_provider =
2056 provider.map(|provider| RegisteredInlineCompletionProvider {
2057 _subscription: cx.observe(&provider, |this, _, cx| {
2058 if this.focus_handle.is_focused(cx) {
2059 this.update_visible_inline_completion(cx);
2060 }
2061 }),
2062 provider: Arc::new(provider),
2063 });
2064 self.refresh_inline_completion(false, cx);
2065 }
2066
2067 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
2068 self.placeholder_text.as_deref()
2069 }
2070
2071 pub fn set_placeholder_text(
2072 &mut self,
2073 placeholder_text: impl Into<Arc<str>>,
2074 cx: &mut ViewContext<Self>,
2075 ) {
2076 let placeholder_text = Some(placeholder_text.into());
2077 if self.placeholder_text != placeholder_text {
2078 self.placeholder_text = placeholder_text;
2079 cx.notify();
2080 }
2081 }
2082
2083 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2084 self.cursor_shape = cursor_shape;
2085 cx.notify();
2086 }
2087
2088 pub fn set_current_line_highlight(
2089 &mut self,
2090 current_line_highlight: Option<CurrentLineHighlight>,
2091 ) {
2092 self.current_line_highlight = current_line_highlight;
2093 }
2094
2095 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2096 self.collapse_matches = collapse_matches;
2097 }
2098
2099 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2100 if self.collapse_matches {
2101 return range.start..range.start;
2102 }
2103 range.clone()
2104 }
2105
2106 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2107 if self.display_map.read(cx).clip_at_line_ends != clip {
2108 self.display_map
2109 .update(cx, |map, _| map.clip_at_line_ends = clip);
2110 }
2111 }
2112
2113 pub fn set_keymap_context_layer<Tag: 'static>(
2114 &mut self,
2115 context: KeyContext,
2116 cx: &mut ViewContext<Self>,
2117 ) {
2118 self.keymap_context_layers
2119 .insert(TypeId::of::<Tag>(), context);
2120 cx.notify();
2121 }
2122
2123 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2124 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2125 cx.notify();
2126 }
2127
2128 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2129 self.input_enabled = input_enabled;
2130 }
2131
2132 pub fn set_autoindent(&mut self, autoindent: bool) {
2133 if autoindent {
2134 self.autoindent_mode = Some(AutoindentMode::EachLine);
2135 } else {
2136 self.autoindent_mode = None;
2137 }
2138 }
2139
2140 pub fn read_only(&self, cx: &AppContext) -> bool {
2141 self.read_only || self.buffer.read(cx).read_only()
2142 }
2143
2144 pub fn set_read_only(&mut self, read_only: bool) {
2145 self.read_only = read_only;
2146 }
2147
2148 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2149 self.use_autoclose = autoclose;
2150 }
2151
2152 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2153 self.auto_replace_emoji_shortcode = auto_replace;
2154 }
2155
2156 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2157 self.show_inline_completions = show_inline_completions;
2158 }
2159
2160 pub fn set_use_modal_editing(&mut self, to: bool) {
2161 self.use_modal_editing = to;
2162 }
2163
2164 pub fn use_modal_editing(&self) -> bool {
2165 self.use_modal_editing
2166 }
2167
2168 fn selections_did_change(
2169 &mut self,
2170 local: bool,
2171 old_cursor_position: &Anchor,
2172 show_completions: bool,
2173 cx: &mut ViewContext<Self>,
2174 ) {
2175 // Copy selections to primary selection buffer
2176 #[cfg(target_os = "linux")]
2177 if local {
2178 let selections = self.selections.all::<usize>(cx);
2179 let buffer_handle = self.buffer.read(cx).read(cx);
2180
2181 let mut text = String::new();
2182 for (index, selection) in selections.iter().enumerate() {
2183 let text_for_selection = buffer_handle
2184 .text_for_range(selection.start..selection.end)
2185 .collect::<String>();
2186
2187 text.push_str(&text_for_selection);
2188 if index != selections.len() - 1 {
2189 text.push('\n');
2190 }
2191 }
2192
2193 if !text.is_empty() {
2194 cx.write_to_primary(ClipboardItem::new(text));
2195 }
2196 }
2197
2198 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2199 self.buffer.update(cx, |buffer, cx| {
2200 buffer.set_active_selections(
2201 &self.selections.disjoint_anchors(),
2202 self.selections.line_mode,
2203 self.cursor_shape,
2204 cx,
2205 )
2206 });
2207 }
2208
2209 let display_map = self
2210 .display_map
2211 .update(cx, |display_map, cx| display_map.snapshot(cx));
2212 let buffer = &display_map.buffer_snapshot;
2213 self.add_selections_state = None;
2214 self.select_next_state = None;
2215 self.select_prev_state = None;
2216 self.select_larger_syntax_node_stack.clear();
2217 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2218 self.snippet_stack
2219 .invalidate(&self.selections.disjoint_anchors(), buffer);
2220 self.take_rename(false, cx);
2221
2222 let new_cursor_position = self.selections.newest_anchor().head();
2223
2224 self.push_to_nav_history(
2225 *old_cursor_position,
2226 Some(new_cursor_position.to_point(buffer)),
2227 cx,
2228 );
2229
2230 if local {
2231 let new_cursor_position = self.selections.newest_anchor().head();
2232 let mut context_menu = self.context_menu.write();
2233 let completion_menu = match context_menu.as_ref() {
2234 Some(ContextMenu::Completions(menu)) => Some(menu),
2235
2236 _ => {
2237 *context_menu = None;
2238 None
2239 }
2240 };
2241
2242 if let Some(completion_menu) = completion_menu {
2243 let cursor_position = new_cursor_position.to_offset(buffer);
2244 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2245 if kind == Some(CharKind::Word)
2246 && word_range.to_inclusive().contains(&cursor_position)
2247 {
2248 let mut completion_menu = completion_menu.clone();
2249 drop(context_menu);
2250
2251 let query = Self::completion_query(buffer, cursor_position);
2252 cx.spawn(move |this, mut cx| async move {
2253 completion_menu
2254 .filter(query.as_deref(), cx.background_executor().clone())
2255 .await;
2256
2257 this.update(&mut cx, |this, cx| {
2258 let mut context_menu = this.context_menu.write();
2259 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2260 return;
2261 };
2262
2263 if menu.id > completion_menu.id {
2264 return;
2265 }
2266
2267 *context_menu = Some(ContextMenu::Completions(completion_menu));
2268 drop(context_menu);
2269 cx.notify();
2270 })
2271 })
2272 .detach();
2273
2274 if show_completions {
2275 self.show_completions(&ShowCompletions, cx);
2276 }
2277 } else {
2278 drop(context_menu);
2279 self.hide_context_menu(cx);
2280 }
2281 } else {
2282 drop(context_menu);
2283 }
2284
2285 hide_hover(self, cx);
2286
2287 if old_cursor_position.to_display_point(&display_map).row()
2288 != new_cursor_position.to_display_point(&display_map).row()
2289 {
2290 self.available_code_actions.take();
2291 }
2292 self.refresh_code_actions(cx);
2293 self.refresh_document_highlights(cx);
2294 refresh_matching_bracket_highlights(self, cx);
2295 self.discard_inline_completion(false, cx);
2296 if self.git_blame_inline_enabled {
2297 self.start_inline_blame_timer(cx);
2298 }
2299 }
2300
2301 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2302 cx.emit(EditorEvent::SelectionsChanged { local });
2303
2304 if self.selections.disjoint_anchors().len() == 1 {
2305 cx.emit(SearchEvent::ActiveMatchChanged)
2306 }
2307
2308 cx.notify();
2309 }
2310
2311 pub fn change_selections<R>(
2312 &mut self,
2313 autoscroll: Option<Autoscroll>,
2314 cx: &mut ViewContext<Self>,
2315 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2316 ) -> R {
2317 self.change_selections_inner(autoscroll, true, cx, change)
2318 }
2319
2320 pub fn change_selections_inner<R>(
2321 &mut self,
2322 autoscroll: Option<Autoscroll>,
2323 request_completions: bool,
2324 cx: &mut ViewContext<Self>,
2325 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2326 ) -> R {
2327 let old_cursor_position = self.selections.newest_anchor().head();
2328 self.push_to_selection_history();
2329
2330 let (changed, result) = self.selections.change_with(cx, change);
2331
2332 if changed {
2333 if let Some(autoscroll) = autoscroll {
2334 self.request_autoscroll(autoscroll, cx);
2335 }
2336 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2337 }
2338
2339 result
2340 }
2341
2342 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2343 where
2344 I: IntoIterator<Item = (Range<S>, T)>,
2345 S: ToOffset,
2346 T: Into<Arc<str>>,
2347 {
2348 if self.read_only(cx) {
2349 return;
2350 }
2351
2352 self.buffer
2353 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2354 }
2355
2356 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2357 where
2358 I: IntoIterator<Item = (Range<S>, T)>,
2359 S: ToOffset,
2360 T: Into<Arc<str>>,
2361 {
2362 if self.read_only(cx) {
2363 return;
2364 }
2365
2366 self.buffer.update(cx, |buffer, cx| {
2367 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2368 });
2369 }
2370
2371 pub fn edit_with_block_indent<I, S, T>(
2372 &mut self,
2373 edits: I,
2374 original_indent_columns: Vec<u32>,
2375 cx: &mut ViewContext<Self>,
2376 ) where
2377 I: IntoIterator<Item = (Range<S>, T)>,
2378 S: ToOffset,
2379 T: Into<Arc<str>>,
2380 {
2381 if self.read_only(cx) {
2382 return;
2383 }
2384
2385 self.buffer.update(cx, |buffer, cx| {
2386 buffer.edit(
2387 edits,
2388 Some(AutoindentMode::Block {
2389 original_indent_columns,
2390 }),
2391 cx,
2392 )
2393 });
2394 }
2395
2396 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2397 self.hide_context_menu(cx);
2398
2399 match phase {
2400 SelectPhase::Begin {
2401 position,
2402 add,
2403 click_count,
2404 } => self.begin_selection(position, add, click_count, cx),
2405 SelectPhase::BeginColumnar {
2406 position,
2407 goal_column,
2408 reset,
2409 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2410 SelectPhase::Extend {
2411 position,
2412 click_count,
2413 } => self.extend_selection(position, click_count, cx),
2414 SelectPhase::Update {
2415 position,
2416 goal_column,
2417 scroll_delta,
2418 } => self.update_selection(position, goal_column, scroll_delta, cx),
2419 SelectPhase::End => self.end_selection(cx),
2420 }
2421 }
2422
2423 fn extend_selection(
2424 &mut self,
2425 position: DisplayPoint,
2426 click_count: usize,
2427 cx: &mut ViewContext<Self>,
2428 ) {
2429 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2430 let tail = self.selections.newest::<usize>(cx).tail();
2431 self.begin_selection(position, false, click_count, cx);
2432
2433 let position = position.to_offset(&display_map, Bias::Left);
2434 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2435
2436 let mut pending_selection = self
2437 .selections
2438 .pending_anchor()
2439 .expect("extend_selection not called with pending selection");
2440 if position >= tail {
2441 pending_selection.start = tail_anchor;
2442 } else {
2443 pending_selection.end = tail_anchor;
2444 pending_selection.reversed = true;
2445 }
2446
2447 let mut pending_mode = self.selections.pending_mode().unwrap();
2448 match &mut pending_mode {
2449 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2450 _ => {}
2451 }
2452
2453 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2454 s.set_pending(pending_selection, pending_mode)
2455 });
2456 }
2457
2458 fn begin_selection(
2459 &mut self,
2460 position: DisplayPoint,
2461 add: bool,
2462 click_count: usize,
2463 cx: &mut ViewContext<Self>,
2464 ) {
2465 if !self.focus_handle.is_focused(cx) {
2466 cx.focus(&self.focus_handle);
2467 }
2468
2469 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2470 let buffer = &display_map.buffer_snapshot;
2471 let newest_selection = self.selections.newest_anchor().clone();
2472 let position = display_map.clip_point(position, Bias::Left);
2473
2474 let start;
2475 let end;
2476 let mode;
2477 let auto_scroll;
2478 match click_count {
2479 1 => {
2480 start = buffer.anchor_before(position.to_point(&display_map));
2481 end = start;
2482 mode = SelectMode::Character;
2483 auto_scroll = true;
2484 }
2485 2 => {
2486 let range = movement::surrounding_word(&display_map, position);
2487 start = buffer.anchor_before(range.start.to_point(&display_map));
2488 end = buffer.anchor_before(range.end.to_point(&display_map));
2489 mode = SelectMode::Word(start..end);
2490 auto_scroll = true;
2491 }
2492 3 => {
2493 let position = display_map
2494 .clip_point(position, Bias::Left)
2495 .to_point(&display_map);
2496 let line_start = display_map.prev_line_boundary(position).0;
2497 let next_line_start = buffer.clip_point(
2498 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2499 Bias::Left,
2500 );
2501 start = buffer.anchor_before(line_start);
2502 end = buffer.anchor_before(next_line_start);
2503 mode = SelectMode::Line(start..end);
2504 auto_scroll = true;
2505 }
2506 _ => {
2507 start = buffer.anchor_before(0);
2508 end = buffer.anchor_before(buffer.len());
2509 mode = SelectMode::All;
2510 auto_scroll = false;
2511 }
2512 }
2513
2514 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2515 if !add {
2516 s.clear_disjoint();
2517 } else if click_count > 1 {
2518 s.delete(newest_selection.id)
2519 }
2520
2521 s.set_pending_anchor_range(start..end, mode);
2522 });
2523 }
2524
2525 fn begin_columnar_selection(
2526 &mut self,
2527 position: DisplayPoint,
2528 goal_column: u32,
2529 reset: bool,
2530 cx: &mut ViewContext<Self>,
2531 ) {
2532 if !self.focus_handle.is_focused(cx) {
2533 cx.focus(&self.focus_handle);
2534 }
2535
2536 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2537
2538 if reset {
2539 let pointer_position = display_map
2540 .buffer_snapshot
2541 .anchor_before(position.to_point(&display_map));
2542
2543 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2544 s.clear_disjoint();
2545 s.set_pending_anchor_range(
2546 pointer_position..pointer_position,
2547 SelectMode::Character,
2548 );
2549 });
2550 }
2551
2552 let tail = self.selections.newest::<Point>(cx).tail();
2553 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2554
2555 if !reset {
2556 self.select_columns(
2557 tail.to_display_point(&display_map),
2558 position,
2559 goal_column,
2560 &display_map,
2561 cx,
2562 );
2563 }
2564 }
2565
2566 fn update_selection(
2567 &mut self,
2568 position: DisplayPoint,
2569 goal_column: u32,
2570 scroll_delta: gpui::Point<f32>,
2571 cx: &mut ViewContext<Self>,
2572 ) {
2573 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2574
2575 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2576 let tail = tail.to_display_point(&display_map);
2577 self.select_columns(tail, position, goal_column, &display_map, cx);
2578 } else if let Some(mut pending) = self.selections.pending_anchor() {
2579 let buffer = self.buffer.read(cx).snapshot(cx);
2580 let head;
2581 let tail;
2582 let mode = self.selections.pending_mode().unwrap();
2583 match &mode {
2584 SelectMode::Character => {
2585 head = position.to_point(&display_map);
2586 tail = pending.tail().to_point(&buffer);
2587 }
2588 SelectMode::Word(original_range) => {
2589 let original_display_range = original_range.start.to_display_point(&display_map)
2590 ..original_range.end.to_display_point(&display_map);
2591 let original_buffer_range = original_display_range.start.to_point(&display_map)
2592 ..original_display_range.end.to_point(&display_map);
2593 if movement::is_inside_word(&display_map, position)
2594 || original_display_range.contains(&position)
2595 {
2596 let word_range = movement::surrounding_word(&display_map, position);
2597 if word_range.start < original_display_range.start {
2598 head = word_range.start.to_point(&display_map);
2599 } else {
2600 head = word_range.end.to_point(&display_map);
2601 }
2602 } else {
2603 head = position.to_point(&display_map);
2604 }
2605
2606 if head <= original_buffer_range.start {
2607 tail = original_buffer_range.end;
2608 } else {
2609 tail = original_buffer_range.start;
2610 }
2611 }
2612 SelectMode::Line(original_range) => {
2613 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2614
2615 let position = display_map
2616 .clip_point(position, Bias::Left)
2617 .to_point(&display_map);
2618 let line_start = display_map.prev_line_boundary(position).0;
2619 let next_line_start = buffer.clip_point(
2620 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2621 Bias::Left,
2622 );
2623
2624 if line_start < original_range.start {
2625 head = line_start
2626 } else {
2627 head = next_line_start
2628 }
2629
2630 if head <= original_range.start {
2631 tail = original_range.end;
2632 } else {
2633 tail = original_range.start;
2634 }
2635 }
2636 SelectMode::All => {
2637 return;
2638 }
2639 };
2640
2641 if head < tail {
2642 pending.start = buffer.anchor_before(head);
2643 pending.end = buffer.anchor_before(tail);
2644 pending.reversed = true;
2645 } else {
2646 pending.start = buffer.anchor_before(tail);
2647 pending.end = buffer.anchor_before(head);
2648 pending.reversed = false;
2649 }
2650
2651 self.change_selections(None, cx, |s| {
2652 s.set_pending(pending, mode);
2653 });
2654 } else {
2655 log::error!("update_selection dispatched with no pending selection");
2656 return;
2657 }
2658
2659 self.apply_scroll_delta(scroll_delta, cx);
2660 cx.notify();
2661 }
2662
2663 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2664 self.columnar_selection_tail.take();
2665 if self.selections.pending_anchor().is_some() {
2666 let selections = self.selections.all::<usize>(cx);
2667 self.change_selections(None, cx, |s| {
2668 s.select(selections);
2669 s.clear_pending();
2670 });
2671 }
2672 }
2673
2674 fn select_columns(
2675 &mut self,
2676 tail: DisplayPoint,
2677 head: DisplayPoint,
2678 goal_column: u32,
2679 display_map: &DisplaySnapshot,
2680 cx: &mut ViewContext<Self>,
2681 ) {
2682 let start_row = cmp::min(tail.row(), head.row());
2683 let end_row = cmp::max(tail.row(), head.row());
2684 let start_column = cmp::min(tail.column(), goal_column);
2685 let end_column = cmp::max(tail.column(), goal_column);
2686 let reversed = start_column < tail.column();
2687
2688 let selection_ranges = (start_row.0..=end_row.0)
2689 .map(DisplayRow)
2690 .filter_map(|row| {
2691 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2692 let start = display_map
2693 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2694 .to_point(display_map);
2695 let end = display_map
2696 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2697 .to_point(display_map);
2698 if reversed {
2699 Some(end..start)
2700 } else {
2701 Some(start..end)
2702 }
2703 } else {
2704 None
2705 }
2706 })
2707 .collect::<Vec<_>>();
2708
2709 self.change_selections(None, cx, |s| {
2710 s.select_ranges(selection_ranges);
2711 });
2712 cx.notify();
2713 }
2714
2715 pub fn has_pending_nonempty_selection(&self) -> bool {
2716 let pending_nonempty_selection = match self.selections.pending_anchor() {
2717 Some(Selection { start, end, .. }) => start != end,
2718 None => false,
2719 };
2720 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2721 }
2722
2723 pub fn has_pending_selection(&self) -> bool {
2724 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2725 }
2726
2727 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2728 self.clear_expanded_diff_hunks(cx);
2729 if self.dismiss_menus_and_popups(true, cx) {
2730 return;
2731 }
2732
2733 if self.mode == EditorMode::Full {
2734 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2735 return;
2736 }
2737 }
2738
2739 cx.propagate();
2740 }
2741
2742 pub fn dismiss_menus_and_popups(
2743 &mut self,
2744 should_report_inline_completion_event: bool,
2745 cx: &mut ViewContext<Self>,
2746 ) -> bool {
2747 if self.take_rename(false, cx).is_some() {
2748 return true;
2749 }
2750
2751 if hide_hover(self, cx) {
2752 return true;
2753 }
2754
2755 if self.hide_context_menu(cx).is_some() {
2756 return true;
2757 }
2758
2759 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2760 return true;
2761 }
2762
2763 if self.snippet_stack.pop().is_some() {
2764 return true;
2765 }
2766
2767 if self.mode == EditorMode::Full {
2768 if self.active_diagnostics.is_some() {
2769 self.dismiss_diagnostics(cx);
2770 return true;
2771 }
2772 }
2773
2774 false
2775 }
2776
2777 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2778 let text: Arc<str> = text.into();
2779
2780 if self.read_only(cx) {
2781 return;
2782 }
2783
2784 let selections = self.selections.all_adjusted(cx);
2785 let mut brace_inserted = false;
2786 let mut edits = Vec::new();
2787 let mut new_selections = Vec::with_capacity(selections.len());
2788 let mut new_autoclose_regions = Vec::new();
2789 let snapshot = self.buffer.read(cx).read(cx);
2790
2791 for (selection, autoclose_region) in
2792 self.selections_with_autoclose_regions(selections, &snapshot)
2793 {
2794 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2795 // Determine if the inserted text matches the opening or closing
2796 // bracket of any of this language's bracket pairs.
2797 let mut bracket_pair = None;
2798 let mut is_bracket_pair_start = false;
2799 let mut is_bracket_pair_end = false;
2800 if !text.is_empty() {
2801 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2802 // and they are removing the character that triggered IME popup.
2803 for (pair, enabled) in scope.brackets() {
2804 if !pair.close {
2805 continue;
2806 }
2807
2808 if enabled && pair.start.ends_with(text.as_ref()) {
2809 bracket_pair = Some(pair.clone());
2810 is_bracket_pair_start = true;
2811 break;
2812 }
2813 if pair.end.as_str() == text.as_ref() {
2814 bracket_pair = Some(pair.clone());
2815 is_bracket_pair_end = true;
2816 break;
2817 }
2818 }
2819 }
2820
2821 if let Some(bracket_pair) = bracket_pair {
2822 let autoclose = self.use_autoclose
2823 && snapshot.settings_at(selection.start, cx).use_autoclose;
2824
2825 if selection.is_empty() {
2826 if is_bracket_pair_start {
2827 let prefix_len = bracket_pair.start.len() - text.len();
2828
2829 // If the inserted text is a suffix of an opening bracket and the
2830 // selection is preceded by the rest of the opening bracket, then
2831 // insert the closing bracket.
2832 let following_text_allows_autoclose = snapshot
2833 .chars_at(selection.start)
2834 .next()
2835 .map_or(true, |c| scope.should_autoclose_before(c));
2836 let preceding_text_matches_prefix = prefix_len == 0
2837 || (selection.start.column >= (prefix_len as u32)
2838 && snapshot.contains_str_at(
2839 Point::new(
2840 selection.start.row,
2841 selection.start.column - (prefix_len as u32),
2842 ),
2843 &bracket_pair.start[..prefix_len],
2844 ));
2845 if autoclose
2846 && following_text_allows_autoclose
2847 && preceding_text_matches_prefix
2848 {
2849 let anchor = snapshot.anchor_before(selection.end);
2850 new_selections.push((selection.map(|_| anchor), text.len()));
2851 new_autoclose_regions.push((
2852 anchor,
2853 text.len(),
2854 selection.id,
2855 bracket_pair.clone(),
2856 ));
2857 edits.push((
2858 selection.range(),
2859 format!("{}{}", text, bracket_pair.end).into(),
2860 ));
2861 brace_inserted = true;
2862 continue;
2863 }
2864 }
2865
2866 if let Some(region) = autoclose_region {
2867 // If the selection is followed by an auto-inserted closing bracket,
2868 // then don't insert that closing bracket again; just move the selection
2869 // past the closing bracket.
2870 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2871 && text.as_ref() == region.pair.end.as_str();
2872 if should_skip {
2873 let anchor = snapshot.anchor_after(selection.end);
2874 new_selections
2875 .push((selection.map(|_| anchor), region.pair.end.len()));
2876 continue;
2877 }
2878 }
2879
2880 let always_treat_brackets_as_autoclosed = snapshot
2881 .settings_at(selection.start, cx)
2882 .always_treat_brackets_as_autoclosed;
2883 if always_treat_brackets_as_autoclosed
2884 && is_bracket_pair_end
2885 && snapshot.contains_str_at(selection.end, text.as_ref())
2886 {
2887 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2888 // and the inserted text is a closing bracket and the selection is followed
2889 // by the closing bracket then move the selection past the closing bracket.
2890 let anchor = snapshot.anchor_after(selection.end);
2891 new_selections.push((selection.map(|_| anchor), text.len()));
2892 continue;
2893 }
2894 }
2895 // If an opening bracket is 1 character long and is typed while
2896 // text is selected, then surround that text with the bracket pair.
2897 else if autoclose
2898 && is_bracket_pair_start
2899 && bracket_pair.start.chars().count() == 1
2900 {
2901 edits.push((selection.start..selection.start, text.clone()));
2902 edits.push((
2903 selection.end..selection.end,
2904 bracket_pair.end.as_str().into(),
2905 ));
2906 brace_inserted = true;
2907 new_selections.push((
2908 Selection {
2909 id: selection.id,
2910 start: snapshot.anchor_after(selection.start),
2911 end: snapshot.anchor_before(selection.end),
2912 reversed: selection.reversed,
2913 goal: selection.goal,
2914 },
2915 0,
2916 ));
2917 continue;
2918 }
2919 }
2920 }
2921
2922 if self.auto_replace_emoji_shortcode
2923 && selection.is_empty()
2924 && text.as_ref().ends_with(':')
2925 {
2926 if let Some(possible_emoji_short_code) =
2927 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2928 {
2929 if !possible_emoji_short_code.is_empty() {
2930 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2931 let emoji_shortcode_start = Point::new(
2932 selection.start.row,
2933 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2934 );
2935
2936 // Remove shortcode from buffer
2937 edits.push((
2938 emoji_shortcode_start..selection.start,
2939 "".to_string().into(),
2940 ));
2941 new_selections.push((
2942 Selection {
2943 id: selection.id,
2944 start: snapshot.anchor_after(emoji_shortcode_start),
2945 end: snapshot.anchor_before(selection.start),
2946 reversed: selection.reversed,
2947 goal: selection.goal,
2948 },
2949 0,
2950 ));
2951
2952 // Insert emoji
2953 let selection_start_anchor = snapshot.anchor_after(selection.start);
2954 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2955 edits.push((selection.start..selection.end, emoji.to_string().into()));
2956
2957 continue;
2958 }
2959 }
2960 }
2961 }
2962
2963 // If not handling any auto-close operation, then just replace the selected
2964 // text with the given input and move the selection to the end of the
2965 // newly inserted text.
2966 let anchor = snapshot.anchor_after(selection.end);
2967 new_selections.push((selection.map(|_| anchor), 0));
2968 edits.push((selection.start..selection.end, text.clone()));
2969 }
2970
2971 drop(snapshot);
2972 self.transact(cx, |this, cx| {
2973 this.buffer.update(cx, |buffer, cx| {
2974 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2975 });
2976
2977 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2978 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2979 let snapshot = this.buffer.read(cx).read(cx);
2980 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2981 .zip(new_selection_deltas)
2982 .map(|(selection, delta)| Selection {
2983 id: selection.id,
2984 start: selection.start + delta,
2985 end: selection.end + delta,
2986 reversed: selection.reversed,
2987 goal: SelectionGoal::None,
2988 })
2989 .collect::<Vec<_>>();
2990
2991 let mut i = 0;
2992 for (position, delta, selection_id, pair) in new_autoclose_regions {
2993 let position = position.to_offset(&snapshot) + delta;
2994 let start = snapshot.anchor_before(position);
2995 let end = snapshot.anchor_after(position);
2996 while let Some(existing_state) = this.autoclose_regions.get(i) {
2997 match existing_state.range.start.cmp(&start, &snapshot) {
2998 Ordering::Less => i += 1,
2999 Ordering::Greater => break,
3000 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3001 Ordering::Less => i += 1,
3002 Ordering::Equal => break,
3003 Ordering::Greater => break,
3004 },
3005 }
3006 }
3007 this.autoclose_regions.insert(
3008 i,
3009 AutocloseRegion {
3010 selection_id,
3011 range: start..end,
3012 pair,
3013 },
3014 );
3015 }
3016
3017 drop(snapshot);
3018 let had_active_inline_completion = this.has_active_inline_completion(cx);
3019 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3020 s.select(new_selections)
3021 });
3022
3023 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
3024 if let Some(on_type_format_task) =
3025 this.trigger_on_type_formatting(text.to_string(), cx)
3026 {
3027 on_type_format_task.detach_and_log_err(cx);
3028 }
3029 }
3030
3031 let trigger_in_words = !had_active_inline_completion;
3032 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3033 this.refresh_inline_completion(true, cx);
3034 });
3035 }
3036
3037 fn find_possible_emoji_shortcode_at_position(
3038 snapshot: &MultiBufferSnapshot,
3039 position: Point,
3040 ) -> Option<String> {
3041 let mut chars = Vec::new();
3042 let mut found_colon = false;
3043 for char in snapshot.reversed_chars_at(position).take(100) {
3044 // Found a possible emoji shortcode in the middle of the buffer
3045 if found_colon {
3046 if char.is_whitespace() {
3047 chars.reverse();
3048 return Some(chars.iter().collect());
3049 }
3050 // If the previous character is not a whitespace, we are in the middle of a word
3051 // and we only want to complete the shortcode if the word is made up of other emojis
3052 let mut containing_word = String::new();
3053 for ch in snapshot
3054 .reversed_chars_at(position)
3055 .skip(chars.len() + 1)
3056 .take(100)
3057 {
3058 if ch.is_whitespace() {
3059 break;
3060 }
3061 containing_word.push(ch);
3062 }
3063 let containing_word = containing_word.chars().rev().collect::<String>();
3064 if util::word_consists_of_emojis(containing_word.as_str()) {
3065 chars.reverse();
3066 return Some(chars.iter().collect());
3067 }
3068 }
3069
3070 if char.is_whitespace() || !char.is_ascii() {
3071 return None;
3072 }
3073 if char == ':' {
3074 found_colon = true;
3075 } else {
3076 chars.push(char);
3077 }
3078 }
3079 // Found a possible emoji shortcode at the beginning of the buffer
3080 chars.reverse();
3081 Some(chars.iter().collect())
3082 }
3083
3084 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3085 self.transact(cx, |this, cx| {
3086 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3087 let selections = this.selections.all::<usize>(cx);
3088 let multi_buffer = this.buffer.read(cx);
3089 let buffer = multi_buffer.snapshot(cx);
3090 selections
3091 .iter()
3092 .map(|selection| {
3093 let start_point = selection.start.to_point(&buffer);
3094 let mut indent =
3095 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3096 indent.len = cmp::min(indent.len, start_point.column);
3097 let start = selection.start;
3098 let end = selection.end;
3099 let selection_is_empty = start == end;
3100 let language_scope = buffer.language_scope_at(start);
3101 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3102 &language_scope
3103 {
3104 let leading_whitespace_len = buffer
3105 .reversed_chars_at(start)
3106 .take_while(|c| c.is_whitespace() && *c != '\n')
3107 .map(|c| c.len_utf8())
3108 .sum::<usize>();
3109
3110 let trailing_whitespace_len = buffer
3111 .chars_at(end)
3112 .take_while(|c| c.is_whitespace() && *c != '\n')
3113 .map(|c| c.len_utf8())
3114 .sum::<usize>();
3115
3116 let insert_extra_newline =
3117 language.brackets().any(|(pair, enabled)| {
3118 let pair_start = pair.start.trim_end();
3119 let pair_end = pair.end.trim_start();
3120
3121 enabled
3122 && pair.newline
3123 && buffer.contains_str_at(
3124 end + trailing_whitespace_len,
3125 pair_end,
3126 )
3127 && buffer.contains_str_at(
3128 (start - leading_whitespace_len)
3129 .saturating_sub(pair_start.len()),
3130 pair_start,
3131 )
3132 });
3133
3134 // Comment extension on newline is allowed only for cursor selections
3135 let comment_delimiter = maybe!({
3136 if !selection_is_empty {
3137 return None;
3138 }
3139
3140 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3141 return None;
3142 }
3143
3144 let delimiters = language.line_comment_prefixes();
3145 let max_len_of_delimiter =
3146 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3147 let (snapshot, range) =
3148 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3149
3150 let mut index_of_first_non_whitespace = 0;
3151 let comment_candidate = snapshot
3152 .chars_for_range(range)
3153 .skip_while(|c| {
3154 let should_skip = c.is_whitespace();
3155 if should_skip {
3156 index_of_first_non_whitespace += 1;
3157 }
3158 should_skip
3159 })
3160 .take(max_len_of_delimiter)
3161 .collect::<String>();
3162 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3163 comment_candidate.starts_with(comment_prefix.as_ref())
3164 })?;
3165 let cursor_is_placed_after_comment_marker =
3166 index_of_first_non_whitespace + comment_prefix.len()
3167 <= start_point.column as usize;
3168 if cursor_is_placed_after_comment_marker {
3169 Some(comment_prefix.clone())
3170 } else {
3171 None
3172 }
3173 });
3174 (comment_delimiter, insert_extra_newline)
3175 } else {
3176 (None, false)
3177 };
3178
3179 let capacity_for_delimiter = comment_delimiter
3180 .as_deref()
3181 .map(str::len)
3182 .unwrap_or_default();
3183 let mut new_text =
3184 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3185 new_text.push_str("\n");
3186 new_text.extend(indent.chars());
3187 if let Some(delimiter) = &comment_delimiter {
3188 new_text.push_str(&delimiter);
3189 }
3190 if insert_extra_newline {
3191 new_text = new_text.repeat(2);
3192 }
3193
3194 let anchor = buffer.anchor_after(end);
3195 let new_selection = selection.map(|_| anchor);
3196 (
3197 (start..end, new_text),
3198 (insert_extra_newline, new_selection),
3199 )
3200 })
3201 .unzip()
3202 };
3203
3204 this.edit_with_autoindent(edits, cx);
3205 let buffer = this.buffer.read(cx).snapshot(cx);
3206 let new_selections = selection_fixup_info
3207 .into_iter()
3208 .map(|(extra_newline_inserted, new_selection)| {
3209 let mut cursor = new_selection.end.to_point(&buffer);
3210 if extra_newline_inserted {
3211 cursor.row -= 1;
3212 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3213 }
3214 new_selection.map(|_| cursor)
3215 })
3216 .collect();
3217
3218 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3219 this.refresh_inline_completion(true, cx);
3220 });
3221 }
3222
3223 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3224 let buffer = self.buffer.read(cx);
3225 let snapshot = buffer.snapshot(cx);
3226
3227 let mut edits = Vec::new();
3228 let mut rows = Vec::new();
3229
3230 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3231 let cursor = selection.head();
3232 let row = cursor.row;
3233
3234 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3235
3236 let newline = "\n".to_string();
3237 edits.push((start_of_line..start_of_line, newline));
3238
3239 rows.push(row + rows_inserted as u32);
3240 }
3241
3242 self.transact(cx, |editor, cx| {
3243 editor.edit(edits, cx);
3244
3245 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3246 let mut index = 0;
3247 s.move_cursors_with(|map, _, _| {
3248 let row = rows[index];
3249 index += 1;
3250
3251 let point = Point::new(row, 0);
3252 let boundary = map.next_line_boundary(point).1;
3253 let clipped = map.clip_point(boundary, Bias::Left);
3254
3255 (clipped, SelectionGoal::None)
3256 });
3257 });
3258
3259 let mut indent_edits = Vec::new();
3260 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3261 for row in rows {
3262 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3263 for (row, indent) in indents {
3264 if indent.len == 0 {
3265 continue;
3266 }
3267
3268 let text = match indent.kind {
3269 IndentKind::Space => " ".repeat(indent.len as usize),
3270 IndentKind::Tab => "\t".repeat(indent.len as usize),
3271 };
3272 let point = Point::new(row.0, 0);
3273 indent_edits.push((point..point, text));
3274 }
3275 }
3276 editor.edit(indent_edits, cx);
3277 });
3278 }
3279
3280 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3281 let buffer = self.buffer.read(cx);
3282 let snapshot = buffer.snapshot(cx);
3283
3284 let mut edits = Vec::new();
3285 let mut rows = Vec::new();
3286 let mut rows_inserted = 0;
3287
3288 for selection in self.selections.all_adjusted(cx) {
3289 let cursor = selection.head();
3290 let row = cursor.row;
3291
3292 let point = Point::new(row + 1, 0);
3293 let start_of_line = snapshot.clip_point(point, Bias::Left);
3294
3295 let newline = "\n".to_string();
3296 edits.push((start_of_line..start_of_line, newline));
3297
3298 rows_inserted += 1;
3299 rows.push(row + rows_inserted);
3300 }
3301
3302 self.transact(cx, |editor, cx| {
3303 editor.edit(edits, cx);
3304
3305 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3306 let mut index = 0;
3307 s.move_cursors_with(|map, _, _| {
3308 let row = rows[index];
3309 index += 1;
3310
3311 let point = Point::new(row, 0);
3312 let boundary = map.next_line_boundary(point).1;
3313 let clipped = map.clip_point(boundary, Bias::Left);
3314
3315 (clipped, SelectionGoal::None)
3316 });
3317 });
3318
3319 let mut indent_edits = Vec::new();
3320 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3321 for row in rows {
3322 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3323 for (row, indent) in indents {
3324 if indent.len == 0 {
3325 continue;
3326 }
3327
3328 let text = match indent.kind {
3329 IndentKind::Space => " ".repeat(indent.len as usize),
3330 IndentKind::Tab => "\t".repeat(indent.len as usize),
3331 };
3332 let point = Point::new(row.0, 0);
3333 indent_edits.push((point..point, text));
3334 }
3335 }
3336 editor.edit(indent_edits, cx);
3337 });
3338 }
3339
3340 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3341 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3342 original_indent_columns: Vec::new(),
3343 });
3344 self.insert_with_autoindent_mode(text, autoindent, cx);
3345 }
3346
3347 fn insert_with_autoindent_mode(
3348 &mut self,
3349 text: &str,
3350 autoindent_mode: Option<AutoindentMode>,
3351 cx: &mut ViewContext<Self>,
3352 ) {
3353 if self.read_only(cx) {
3354 return;
3355 }
3356
3357 let text: Arc<str> = text.into();
3358 self.transact(cx, |this, cx| {
3359 let old_selections = this.selections.all_adjusted(cx);
3360 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3361 let anchors = {
3362 let snapshot = buffer.read(cx);
3363 old_selections
3364 .iter()
3365 .map(|s| {
3366 let anchor = snapshot.anchor_after(s.head());
3367 s.map(|_| anchor)
3368 })
3369 .collect::<Vec<_>>()
3370 };
3371 buffer.edit(
3372 old_selections
3373 .iter()
3374 .map(|s| (s.start..s.end, text.clone())),
3375 autoindent_mode,
3376 cx,
3377 );
3378 anchors
3379 });
3380
3381 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3382 s.select_anchors(selection_anchors);
3383 })
3384 });
3385 }
3386
3387 fn trigger_completion_on_input(
3388 &mut self,
3389 text: &str,
3390 trigger_in_words: bool,
3391 cx: &mut ViewContext<Self>,
3392 ) {
3393 if self.is_completion_trigger(text, trigger_in_words, cx) {
3394 self.show_completions(&ShowCompletions, cx);
3395 } else {
3396 self.hide_context_menu(cx);
3397 }
3398 }
3399
3400 fn is_completion_trigger(
3401 &self,
3402 text: &str,
3403 trigger_in_words: bool,
3404 cx: &mut ViewContext<Self>,
3405 ) -> bool {
3406 let position = self.selections.newest_anchor().head();
3407 let multibuffer = self.buffer.read(cx);
3408 let Some(buffer) = position
3409 .buffer_id
3410 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3411 else {
3412 return false;
3413 };
3414
3415 if let Some(completion_provider) = &self.completion_provider {
3416 completion_provider.is_completion_trigger(
3417 &buffer,
3418 position.text_anchor,
3419 text,
3420 trigger_in_words,
3421 cx,
3422 )
3423 } else {
3424 false
3425 }
3426 }
3427
3428 /// If any empty selections is touching the start of its innermost containing autoclose
3429 /// region, expand it to select the brackets.
3430 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3431 let selections = self.selections.all::<usize>(cx);
3432 let buffer = self.buffer.read(cx).read(cx);
3433 let new_selections = self
3434 .selections_with_autoclose_regions(selections, &buffer)
3435 .map(|(mut selection, region)| {
3436 if !selection.is_empty() {
3437 return selection;
3438 }
3439
3440 if let Some(region) = region {
3441 let mut range = region.range.to_offset(&buffer);
3442 if selection.start == range.start && range.start >= region.pair.start.len() {
3443 range.start -= region.pair.start.len();
3444 if buffer.contains_str_at(range.start, ®ion.pair.start)
3445 && buffer.contains_str_at(range.end, ®ion.pair.end)
3446 {
3447 range.end += region.pair.end.len();
3448 selection.start = range.start;
3449 selection.end = range.end;
3450
3451 return selection;
3452 }
3453 }
3454 }
3455
3456 let always_treat_brackets_as_autoclosed = buffer
3457 .settings_at(selection.start, cx)
3458 .always_treat_brackets_as_autoclosed;
3459
3460 if !always_treat_brackets_as_autoclosed {
3461 return selection;
3462 }
3463
3464 if let Some(scope) = buffer.language_scope_at(selection.start) {
3465 for (pair, enabled) in scope.brackets() {
3466 if !enabled || !pair.close {
3467 continue;
3468 }
3469
3470 if buffer.contains_str_at(selection.start, &pair.end) {
3471 let pair_start_len = pair.start.len();
3472 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3473 {
3474 selection.start -= pair_start_len;
3475 selection.end += pair.end.len();
3476
3477 return selection;
3478 }
3479 }
3480 }
3481 }
3482
3483 selection
3484 })
3485 .collect();
3486
3487 drop(buffer);
3488 self.change_selections(None, cx, |selections| selections.select(new_selections));
3489 }
3490
3491 /// Iterate the given selections, and for each one, find the smallest surrounding
3492 /// autoclose region. This uses the ordering of the selections and the autoclose
3493 /// regions to avoid repeated comparisons.
3494 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3495 &'a self,
3496 selections: impl IntoIterator<Item = Selection<D>>,
3497 buffer: &'a MultiBufferSnapshot,
3498 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3499 let mut i = 0;
3500 let mut regions = self.autoclose_regions.as_slice();
3501 selections.into_iter().map(move |selection| {
3502 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3503
3504 let mut enclosing = None;
3505 while let Some(pair_state) = regions.get(i) {
3506 if pair_state.range.end.to_offset(buffer) < range.start {
3507 regions = ®ions[i + 1..];
3508 i = 0;
3509 } else if pair_state.range.start.to_offset(buffer) > range.end {
3510 break;
3511 } else {
3512 if pair_state.selection_id == selection.id {
3513 enclosing = Some(pair_state);
3514 }
3515 i += 1;
3516 }
3517 }
3518
3519 (selection.clone(), enclosing)
3520 })
3521 }
3522
3523 /// Remove any autoclose regions that no longer contain their selection.
3524 fn invalidate_autoclose_regions(
3525 &mut self,
3526 mut selections: &[Selection<Anchor>],
3527 buffer: &MultiBufferSnapshot,
3528 ) {
3529 self.autoclose_regions.retain(|state| {
3530 let mut i = 0;
3531 while let Some(selection) = selections.get(i) {
3532 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3533 selections = &selections[1..];
3534 continue;
3535 }
3536 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3537 break;
3538 }
3539 if selection.id == state.selection_id {
3540 return true;
3541 } else {
3542 i += 1;
3543 }
3544 }
3545 false
3546 });
3547 }
3548
3549 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3550 let offset = position.to_offset(buffer);
3551 let (word_range, kind) = buffer.surrounding_word(offset);
3552 if offset > word_range.start && kind == Some(CharKind::Word) {
3553 Some(
3554 buffer
3555 .text_for_range(word_range.start..offset)
3556 .collect::<String>(),
3557 )
3558 } else {
3559 None
3560 }
3561 }
3562
3563 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3564 self.refresh_inlay_hints(
3565 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3566 cx,
3567 );
3568 }
3569
3570 pub fn inlay_hints_enabled(&self) -> bool {
3571 self.inlay_hint_cache.enabled
3572 }
3573
3574 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3575 if self.project.is_none() || self.mode != EditorMode::Full {
3576 return;
3577 }
3578
3579 let reason_description = reason.description();
3580 let ignore_debounce = matches!(
3581 reason,
3582 InlayHintRefreshReason::SettingsChange(_)
3583 | InlayHintRefreshReason::Toggle(_)
3584 | InlayHintRefreshReason::ExcerptsRemoved(_)
3585 );
3586 let (invalidate_cache, required_languages) = match reason {
3587 InlayHintRefreshReason::Toggle(enabled) => {
3588 self.inlay_hint_cache.enabled = enabled;
3589 if enabled {
3590 (InvalidationStrategy::RefreshRequested, None)
3591 } else {
3592 self.inlay_hint_cache.clear();
3593 self.splice_inlays(
3594 self.visible_inlay_hints(cx)
3595 .iter()
3596 .map(|inlay| inlay.id)
3597 .collect(),
3598 Vec::new(),
3599 cx,
3600 );
3601 return;
3602 }
3603 }
3604 InlayHintRefreshReason::SettingsChange(new_settings) => {
3605 match self.inlay_hint_cache.update_settings(
3606 &self.buffer,
3607 new_settings,
3608 self.visible_inlay_hints(cx),
3609 cx,
3610 ) {
3611 ControlFlow::Break(Some(InlaySplice {
3612 to_remove,
3613 to_insert,
3614 })) => {
3615 self.splice_inlays(to_remove, to_insert, cx);
3616 return;
3617 }
3618 ControlFlow::Break(None) => return,
3619 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3620 }
3621 }
3622 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3623 if let Some(InlaySplice {
3624 to_remove,
3625 to_insert,
3626 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3627 {
3628 self.splice_inlays(to_remove, to_insert, cx);
3629 }
3630 return;
3631 }
3632 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3633 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3634 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3635 }
3636 InlayHintRefreshReason::RefreshRequested => {
3637 (InvalidationStrategy::RefreshRequested, None)
3638 }
3639 };
3640
3641 if let Some(InlaySplice {
3642 to_remove,
3643 to_insert,
3644 }) = self.inlay_hint_cache.spawn_hint_refresh(
3645 reason_description,
3646 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3647 invalidate_cache,
3648 ignore_debounce,
3649 cx,
3650 ) {
3651 self.splice_inlays(to_remove, to_insert, cx);
3652 }
3653 }
3654
3655 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3656 self.display_map
3657 .read(cx)
3658 .current_inlays()
3659 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3660 .cloned()
3661 .collect()
3662 }
3663
3664 pub fn excerpts_for_inlay_hints_query(
3665 &self,
3666 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3667 cx: &mut ViewContext<Editor>,
3668 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3669 let Some(project) = self.project.as_ref() else {
3670 return HashMap::default();
3671 };
3672 let project = project.read(cx);
3673 let multi_buffer = self.buffer().read(cx);
3674 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3675 let multi_buffer_visible_start = self
3676 .scroll_manager
3677 .anchor()
3678 .anchor
3679 .to_point(&multi_buffer_snapshot);
3680 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3681 multi_buffer_visible_start
3682 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3683 Bias::Left,
3684 );
3685 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3686 multi_buffer
3687 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3688 .into_iter()
3689 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3690 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3691 let buffer = buffer_handle.read(cx);
3692 let buffer_file = project::File::from_dyn(buffer.file())?;
3693 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3694 let worktree_entry = buffer_worktree
3695 .read(cx)
3696 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3697 if worktree_entry.is_ignored {
3698 return None;
3699 }
3700
3701 let language = buffer.language()?;
3702 if let Some(restrict_to_languages) = restrict_to_languages {
3703 if !restrict_to_languages.contains(language) {
3704 return None;
3705 }
3706 }
3707 Some((
3708 excerpt_id,
3709 (
3710 buffer_handle,
3711 buffer.version().clone(),
3712 excerpt_visible_range,
3713 ),
3714 ))
3715 })
3716 .collect()
3717 }
3718
3719 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3720 TextLayoutDetails {
3721 text_system: cx.text_system().clone(),
3722 editor_style: self.style.clone().unwrap(),
3723 rem_size: cx.rem_size(),
3724 scroll_anchor: self.scroll_manager.anchor(),
3725 visible_rows: self.visible_line_count(),
3726 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3727 }
3728 }
3729
3730 fn splice_inlays(
3731 &self,
3732 to_remove: Vec<InlayId>,
3733 to_insert: Vec<Inlay>,
3734 cx: &mut ViewContext<Self>,
3735 ) {
3736 self.display_map.update(cx, |display_map, cx| {
3737 display_map.splice_inlays(to_remove, to_insert, cx);
3738 });
3739 cx.notify();
3740 }
3741
3742 fn trigger_on_type_formatting(
3743 &self,
3744 input: String,
3745 cx: &mut ViewContext<Self>,
3746 ) -> Option<Task<Result<()>>> {
3747 if input.len() != 1 {
3748 return None;
3749 }
3750
3751 let project = self.project.as_ref()?;
3752 let position = self.selections.newest_anchor().head();
3753 let (buffer, buffer_position) = self
3754 .buffer
3755 .read(cx)
3756 .text_anchor_for_position(position, cx)?;
3757
3758 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3759 // hence we do LSP request & edit on host side only — add formats to host's history.
3760 let push_to_lsp_host_history = true;
3761 // If this is not the host, append its history with new edits.
3762 let push_to_client_history = project.read(cx).is_remote();
3763
3764 let on_type_formatting = project.update(cx, |project, cx| {
3765 project.on_type_format(
3766 buffer.clone(),
3767 buffer_position,
3768 input,
3769 push_to_lsp_host_history,
3770 cx,
3771 )
3772 });
3773 Some(cx.spawn(|editor, mut cx| async move {
3774 if let Some(transaction) = on_type_formatting.await? {
3775 if push_to_client_history {
3776 buffer
3777 .update(&mut cx, |buffer, _| {
3778 buffer.push_transaction(transaction, Instant::now());
3779 })
3780 .ok();
3781 }
3782 editor.update(&mut cx, |editor, cx| {
3783 editor.refresh_document_highlights(cx);
3784 })?;
3785 }
3786 Ok(())
3787 }))
3788 }
3789
3790 pub fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3791 if self.pending_rename.is_some() {
3792 return;
3793 }
3794
3795 let Some(provider) = self.completion_provider.as_ref() else {
3796 return;
3797 };
3798
3799 let position = self.selections.newest_anchor().head();
3800 let (buffer, buffer_position) =
3801 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3802 output
3803 } else {
3804 return;
3805 };
3806
3807 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3808 let completions = provider.completions(&buffer, buffer_position, cx);
3809
3810 let id = post_inc(&mut self.next_completion_id);
3811 let task = cx.spawn(|this, mut cx| {
3812 async move {
3813 this.update(&mut cx, |this, _| {
3814 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3815 })?;
3816 let completions = completions.await.log_err();
3817 let menu = if let Some(completions) = completions {
3818 let mut menu = CompletionsMenu {
3819 id,
3820 initial_position: position,
3821 match_candidates: completions
3822 .iter()
3823 .enumerate()
3824 .map(|(id, completion)| {
3825 StringMatchCandidate::new(
3826 id,
3827 completion.label.text[completion.label.filter_range.clone()]
3828 .into(),
3829 )
3830 })
3831 .collect(),
3832 buffer: buffer.clone(),
3833 completions: Arc::new(RwLock::new(completions.into())),
3834 matches: Vec::new().into(),
3835 selected_item: 0,
3836 scroll_handle: UniformListScrollHandle::new(),
3837 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3838 DebouncedDelay::new(),
3839 )),
3840 };
3841 menu.filter(query.as_deref(), cx.background_executor().clone())
3842 .await;
3843
3844 if menu.matches.is_empty() {
3845 None
3846 } else {
3847 this.update(&mut cx, |editor, cx| {
3848 let completions = menu.completions.clone();
3849 let matches = menu.matches.clone();
3850
3851 let delay_ms = EditorSettings::get_global(cx)
3852 .completion_documentation_secondary_query_debounce;
3853 let delay = Duration::from_millis(delay_ms);
3854 editor
3855 .completion_documentation_pre_resolve_debounce
3856 .fire_new(delay, cx, |editor, cx| {
3857 CompletionsMenu::pre_resolve_completion_documentation(
3858 buffer,
3859 completions,
3860 matches,
3861 editor,
3862 cx,
3863 )
3864 });
3865 })
3866 .ok();
3867 Some(menu)
3868 }
3869 } else {
3870 None
3871 };
3872
3873 this.update(&mut cx, |this, cx| {
3874 let mut context_menu = this.context_menu.write();
3875 match context_menu.as_ref() {
3876 None => {}
3877
3878 Some(ContextMenu::Completions(prev_menu)) => {
3879 if prev_menu.id > id {
3880 return;
3881 }
3882 }
3883
3884 _ => return,
3885 }
3886
3887 if this.focus_handle.is_focused(cx) && menu.is_some() {
3888 let menu = menu.unwrap();
3889 *context_menu = Some(ContextMenu::Completions(menu));
3890 drop(context_menu);
3891 this.discard_inline_completion(false, cx);
3892 cx.notify();
3893 } else if this.completion_tasks.len() <= 1 {
3894 // If there are no more completion tasks and the last menu was
3895 // empty, we should hide it. If it was already hidden, we should
3896 // also show the copilot completion when available.
3897 drop(context_menu);
3898 if this.hide_context_menu(cx).is_none() {
3899 this.update_visible_inline_completion(cx);
3900 }
3901 }
3902 })?;
3903
3904 Ok::<_, anyhow::Error>(())
3905 }
3906 .log_err()
3907 });
3908
3909 self.completion_tasks.push((id, task));
3910 }
3911
3912 pub fn confirm_completion(
3913 &mut self,
3914 action: &ConfirmCompletion,
3915 cx: &mut ViewContext<Self>,
3916 ) -> Option<Task<Result<()>>> {
3917 use language::ToOffset as _;
3918
3919 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3920 menu
3921 } else {
3922 return None;
3923 };
3924
3925 let mat = completions_menu
3926 .matches
3927 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3928 let buffer_handle = completions_menu.buffer;
3929 let completions = completions_menu.completions.read();
3930 let completion = completions.get(mat.candidate_id)?;
3931 cx.stop_propagation();
3932
3933 let snippet;
3934 let text;
3935
3936 if completion.is_snippet() {
3937 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3938 text = snippet.as_ref().unwrap().text.clone();
3939 } else {
3940 snippet = None;
3941 text = completion.new_text.clone();
3942 };
3943 let selections = self.selections.all::<usize>(cx);
3944 let buffer = buffer_handle.read(cx);
3945 let old_range = completion.old_range.to_offset(buffer);
3946 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3947
3948 let newest_selection = self.selections.newest_anchor();
3949 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3950 return None;
3951 }
3952
3953 let lookbehind = newest_selection
3954 .start
3955 .text_anchor
3956 .to_offset(buffer)
3957 .saturating_sub(old_range.start);
3958 let lookahead = old_range
3959 .end
3960 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3961 let mut common_prefix_len = old_text
3962 .bytes()
3963 .zip(text.bytes())
3964 .take_while(|(a, b)| a == b)
3965 .count();
3966
3967 let snapshot = self.buffer.read(cx).snapshot(cx);
3968 let mut range_to_replace: Option<Range<isize>> = None;
3969 let mut ranges = Vec::new();
3970 for selection in &selections {
3971 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3972 let start = selection.start.saturating_sub(lookbehind);
3973 let end = selection.end + lookahead;
3974 if selection.id == newest_selection.id {
3975 range_to_replace = Some(
3976 ((start + common_prefix_len) as isize - selection.start as isize)
3977 ..(end as isize - selection.start as isize),
3978 );
3979 }
3980 ranges.push(start + common_prefix_len..end);
3981 } else {
3982 common_prefix_len = 0;
3983 ranges.clear();
3984 ranges.extend(selections.iter().map(|s| {
3985 if s.id == newest_selection.id {
3986 range_to_replace = Some(
3987 old_range.start.to_offset_utf16(&snapshot).0 as isize
3988 - selection.start as isize
3989 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3990 - selection.start as isize,
3991 );
3992 old_range.clone()
3993 } else {
3994 s.start..s.end
3995 }
3996 }));
3997 break;
3998 }
3999 }
4000 let text = &text[common_prefix_len..];
4001
4002 cx.emit(EditorEvent::InputHandled {
4003 utf16_range_to_replace: range_to_replace,
4004 text: text.into(),
4005 });
4006
4007 self.transact(cx, |this, cx| {
4008 if let Some(mut snippet) = snippet {
4009 snippet.text = text.to_string();
4010 for tabstop in snippet.tabstops.iter_mut().flatten() {
4011 tabstop.start -= common_prefix_len as isize;
4012 tabstop.end -= common_prefix_len as isize;
4013 }
4014
4015 this.insert_snippet(&ranges, snippet, cx).log_err();
4016 } else {
4017 this.buffer.update(cx, |buffer, cx| {
4018 buffer.edit(
4019 ranges.iter().map(|range| (range.clone(), text)),
4020 this.autoindent_mode.clone(),
4021 cx,
4022 );
4023 });
4024 }
4025
4026 this.refresh_inline_completion(true, cx);
4027 });
4028
4029 if let Some(confirm) = completion.confirm.as_ref() {
4030 (confirm)(cx);
4031 }
4032
4033 if completion.show_new_completions_on_confirm {
4034 self.show_completions(&ShowCompletions, cx);
4035 }
4036
4037 let provider = self.completion_provider.as_ref()?;
4038 let apply_edits = provider.apply_additional_edits_for_completion(
4039 buffer_handle,
4040 completion.clone(),
4041 true,
4042 cx,
4043 );
4044 Some(cx.foreground_executor().spawn(async move {
4045 apply_edits.await?;
4046 Ok(())
4047 }))
4048 }
4049
4050 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4051 let mut context_menu = self.context_menu.write();
4052 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4053 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4054 // Toggle if we're selecting the same one
4055 *context_menu = None;
4056 cx.notify();
4057 return;
4058 } else {
4059 // Otherwise, clear it and start a new one
4060 *context_menu = None;
4061 cx.notify();
4062 }
4063 }
4064 drop(context_menu);
4065 let snapshot = self.snapshot(cx);
4066 let deployed_from_indicator = action.deployed_from_indicator;
4067 let mut task = self.code_actions_task.take();
4068 let action = action.clone();
4069 cx.spawn(|editor, mut cx| async move {
4070 while let Some(prev_task) = task {
4071 prev_task.await;
4072 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4073 }
4074
4075 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4076 if editor.focus_handle.is_focused(cx) {
4077 let multibuffer_point = action
4078 .deployed_from_indicator
4079 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4080 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4081 let (buffer, buffer_row) = snapshot
4082 .buffer_snapshot
4083 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4084 .and_then(|(buffer_snapshot, range)| {
4085 editor
4086 .buffer
4087 .read(cx)
4088 .buffer(buffer_snapshot.remote_id())
4089 .map(|buffer| (buffer, range.start.row))
4090 })?;
4091 let (_, code_actions) = editor
4092 .available_code_actions
4093 .clone()
4094 .and_then(|(location, code_actions)| {
4095 let snapshot = location.buffer.read(cx).snapshot();
4096 let point_range = location.range.to_point(&snapshot);
4097 let point_range = point_range.start.row..=point_range.end.row;
4098 if point_range.contains(&buffer_row) {
4099 Some((location, code_actions))
4100 } else {
4101 None
4102 }
4103 })
4104 .unzip();
4105 let buffer_id = buffer.read(cx).remote_id();
4106 let tasks = editor
4107 .tasks
4108 .get(&(buffer_id, buffer_row))
4109 .map(|t| Arc::new(t.to_owned()));
4110 if tasks.is_none() && code_actions.is_none() {
4111 return None;
4112 }
4113
4114 editor.completion_tasks.clear();
4115 editor.discard_inline_completion(false, cx);
4116 let task_context =
4117 tasks
4118 .as_ref()
4119 .zip(editor.project.clone())
4120 .map(|(tasks, project)| {
4121 let position = Point::new(buffer_row, tasks.column);
4122 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4123 let location = Location {
4124 buffer: buffer.clone(),
4125 range: range_start..range_start,
4126 };
4127 // Fill in the environmental variables from the tree-sitter captures
4128 let mut captured_task_variables = TaskVariables::default();
4129 for (capture_name, value) in tasks.extra_variables.clone() {
4130 captured_task_variables.insert(
4131 task::VariableName::Custom(capture_name.into()),
4132 value.clone(),
4133 );
4134 }
4135 project.update(cx, |project, cx| {
4136 project.task_context_for_location(
4137 captured_task_variables,
4138 location,
4139 cx,
4140 )
4141 })
4142 });
4143
4144 Some(cx.spawn(|editor, mut cx| async move {
4145 let task_context = match task_context {
4146 Some(task_context) => task_context.await,
4147 None => None,
4148 };
4149 let resolved_tasks =
4150 tasks.zip(task_context).map(|(tasks, task_context)| {
4151 Arc::new(ResolvedTasks {
4152 templates: tasks
4153 .templates
4154 .iter()
4155 .filter_map(|(kind, template)| {
4156 template
4157 .resolve_task(&kind.to_id_base(), &task_context)
4158 .map(|task| (kind.clone(), task))
4159 })
4160 .collect(),
4161 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4162 multibuffer_point.row,
4163 tasks.column,
4164 )),
4165 })
4166 });
4167 let spawn_straight_away = resolved_tasks
4168 .as_ref()
4169 .map_or(false, |tasks| tasks.templates.len() == 1)
4170 && code_actions
4171 .as_ref()
4172 .map_or(true, |actions| actions.is_empty());
4173 if let Some(task) = editor
4174 .update(&mut cx, |editor, cx| {
4175 *editor.context_menu.write() =
4176 Some(ContextMenu::CodeActions(CodeActionsMenu {
4177 buffer,
4178 actions: CodeActionContents {
4179 tasks: resolved_tasks,
4180 actions: code_actions,
4181 },
4182 selected_item: Default::default(),
4183 scroll_handle: UniformListScrollHandle::default(),
4184 deployed_from_indicator,
4185 }));
4186 if spawn_straight_away {
4187 if let Some(task) = editor.confirm_code_action(
4188 &ConfirmCodeAction { item_ix: Some(0) },
4189 cx,
4190 ) {
4191 cx.notify();
4192 return task;
4193 }
4194 }
4195 cx.notify();
4196 Task::ready(Ok(()))
4197 })
4198 .ok()
4199 {
4200 task.await
4201 } else {
4202 Ok(())
4203 }
4204 }))
4205 } else {
4206 Some(Task::ready(Ok(())))
4207 }
4208 })?;
4209 if let Some(task) = spawned_test_task {
4210 task.await?;
4211 }
4212
4213 Ok::<_, anyhow::Error>(())
4214 })
4215 .detach_and_log_err(cx);
4216 }
4217
4218 pub fn confirm_code_action(
4219 &mut self,
4220 action: &ConfirmCodeAction,
4221 cx: &mut ViewContext<Self>,
4222 ) -> Option<Task<Result<()>>> {
4223 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4224 menu
4225 } else {
4226 return None;
4227 };
4228 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4229 let action = actions_menu.actions.get(action_ix)?;
4230 let title = action.label();
4231 let buffer = actions_menu.buffer;
4232 let workspace = self.workspace()?;
4233
4234 match action {
4235 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4236 workspace.update(cx, |workspace, cx| {
4237 workspace::tasks::schedule_resolved_task(
4238 workspace,
4239 task_source_kind,
4240 resolved_task,
4241 false,
4242 cx,
4243 );
4244
4245 Some(Task::ready(Ok(())))
4246 })
4247 }
4248 CodeActionsItem::CodeAction(action) => {
4249 let apply_code_actions = workspace
4250 .read(cx)
4251 .project()
4252 .clone()
4253 .update(cx, |project, cx| {
4254 project.apply_code_action(buffer, action, true, cx)
4255 });
4256 let workspace = workspace.downgrade();
4257 Some(cx.spawn(|editor, cx| async move {
4258 let project_transaction = apply_code_actions.await?;
4259 Self::open_project_transaction(
4260 &editor,
4261 workspace,
4262 project_transaction,
4263 title,
4264 cx,
4265 )
4266 .await
4267 }))
4268 }
4269 }
4270 }
4271
4272 pub async fn open_project_transaction(
4273 this: &WeakView<Editor>,
4274 workspace: WeakView<Workspace>,
4275 transaction: ProjectTransaction,
4276 title: String,
4277 mut cx: AsyncWindowContext,
4278 ) -> Result<()> {
4279 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4280
4281 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4282 cx.update(|cx| {
4283 entries.sort_unstable_by_key(|(buffer, _)| {
4284 buffer.read(cx).file().map(|f| f.path().clone())
4285 });
4286 })?;
4287
4288 // If the project transaction's edits are all contained within this editor, then
4289 // avoid opening a new editor to display them.
4290
4291 if let Some((buffer, transaction)) = entries.first() {
4292 if entries.len() == 1 {
4293 let excerpt = this.update(&mut cx, |editor, cx| {
4294 editor
4295 .buffer()
4296 .read(cx)
4297 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4298 })?;
4299 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4300 if excerpted_buffer == *buffer {
4301 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4302 let excerpt_range = excerpt_range.to_offset(buffer);
4303 buffer
4304 .edited_ranges_for_transaction::<usize>(transaction)
4305 .all(|range| {
4306 excerpt_range.start <= range.start
4307 && excerpt_range.end >= range.end
4308 })
4309 })?;
4310
4311 if all_edits_within_excerpt {
4312 return Ok(());
4313 }
4314 }
4315 }
4316 }
4317 } else {
4318 return Ok(());
4319 }
4320
4321 let mut ranges_to_highlight = Vec::new();
4322 let excerpt_buffer = cx.new_model(|cx| {
4323 let mut multibuffer =
4324 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4325 for (buffer_handle, transaction) in &entries {
4326 let buffer = buffer_handle.read(cx);
4327 ranges_to_highlight.extend(
4328 multibuffer.push_excerpts_with_context_lines(
4329 buffer_handle.clone(),
4330 buffer
4331 .edited_ranges_for_transaction::<usize>(transaction)
4332 .collect(),
4333 DEFAULT_MULTIBUFFER_CONTEXT,
4334 cx,
4335 ),
4336 );
4337 }
4338 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4339 multibuffer
4340 })?;
4341
4342 workspace.update(&mut cx, |workspace, cx| {
4343 let project = workspace.project().clone();
4344 let editor =
4345 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4346 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4347 editor.update(cx, |editor, cx| {
4348 editor.highlight_background::<Self>(
4349 &ranges_to_highlight,
4350 |theme| theme.editor_highlighted_line_background,
4351 cx,
4352 );
4353 });
4354 })?;
4355
4356 Ok(())
4357 }
4358
4359 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4360 let project = self.project.clone()?;
4361 let buffer = self.buffer.read(cx);
4362 let newest_selection = self.selections.newest_anchor().clone();
4363 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4364 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4365 if start_buffer != end_buffer {
4366 return None;
4367 }
4368
4369 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4370 cx.background_executor()
4371 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4372 .await;
4373
4374 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4375 project.code_actions(&start_buffer, start..end, cx)
4376 }) {
4377 code_actions.await
4378 } else {
4379 Vec::new()
4380 };
4381
4382 this.update(&mut cx, |this, cx| {
4383 this.available_code_actions = if actions.is_empty() {
4384 None
4385 } else {
4386 Some((
4387 Location {
4388 buffer: start_buffer,
4389 range: start..end,
4390 },
4391 actions.into(),
4392 ))
4393 };
4394 cx.notify();
4395 })
4396 .log_err();
4397 }));
4398 None
4399 }
4400
4401 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4402 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4403 self.show_git_blame_inline = false;
4404
4405 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4406 cx.background_executor().timer(delay).await;
4407
4408 this.update(&mut cx, |this, cx| {
4409 this.show_git_blame_inline = true;
4410 cx.notify();
4411 })
4412 .log_err();
4413 }));
4414 }
4415 }
4416
4417 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4418 if self.pending_rename.is_some() {
4419 return None;
4420 }
4421
4422 let project = self.project.clone()?;
4423 let buffer = self.buffer.read(cx);
4424 let newest_selection = self.selections.newest_anchor().clone();
4425 let cursor_position = newest_selection.head();
4426 let (cursor_buffer, cursor_buffer_position) =
4427 buffer.text_anchor_for_position(cursor_position, cx)?;
4428 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4429 if cursor_buffer != tail_buffer {
4430 return None;
4431 }
4432
4433 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4434 cx.background_executor()
4435 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4436 .await;
4437
4438 let highlights = if let Some(highlights) = project
4439 .update(&mut cx, |project, cx| {
4440 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4441 })
4442 .log_err()
4443 {
4444 highlights.await.log_err()
4445 } else {
4446 None
4447 };
4448
4449 if let Some(highlights) = highlights {
4450 this.update(&mut cx, |this, cx| {
4451 if this.pending_rename.is_some() {
4452 return;
4453 }
4454
4455 let buffer_id = cursor_position.buffer_id;
4456 let buffer = this.buffer.read(cx);
4457 if !buffer
4458 .text_anchor_for_position(cursor_position, cx)
4459 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4460 {
4461 return;
4462 }
4463
4464 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4465 let mut write_ranges = Vec::new();
4466 let mut read_ranges = Vec::new();
4467 for highlight in highlights {
4468 for (excerpt_id, excerpt_range) in
4469 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4470 {
4471 let start = highlight
4472 .range
4473 .start
4474 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4475 let end = highlight
4476 .range
4477 .end
4478 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4479 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4480 continue;
4481 }
4482
4483 let range = Anchor {
4484 buffer_id,
4485 excerpt_id: excerpt_id,
4486 text_anchor: start,
4487 }..Anchor {
4488 buffer_id,
4489 excerpt_id,
4490 text_anchor: end,
4491 };
4492 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4493 write_ranges.push(range);
4494 } else {
4495 read_ranges.push(range);
4496 }
4497 }
4498 }
4499
4500 this.highlight_background::<DocumentHighlightRead>(
4501 &read_ranges,
4502 |theme| theme.editor_document_highlight_read_background,
4503 cx,
4504 );
4505 this.highlight_background::<DocumentHighlightWrite>(
4506 &write_ranges,
4507 |theme| theme.editor_document_highlight_write_background,
4508 cx,
4509 );
4510 cx.notify();
4511 })
4512 .log_err();
4513 }
4514 }));
4515 None
4516 }
4517
4518 fn refresh_inline_completion(
4519 &mut self,
4520 debounce: bool,
4521 cx: &mut ViewContext<Self>,
4522 ) -> Option<()> {
4523 let provider = self.inline_completion_provider()?;
4524 let cursor = self.selections.newest_anchor().head();
4525 let (buffer, cursor_buffer_position) =
4526 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4527 if !self.show_inline_completions
4528 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4529 {
4530 self.discard_inline_completion(false, cx);
4531 return None;
4532 }
4533
4534 self.update_visible_inline_completion(cx);
4535 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4536 Some(())
4537 }
4538
4539 fn cycle_inline_completion(
4540 &mut self,
4541 direction: Direction,
4542 cx: &mut ViewContext<Self>,
4543 ) -> Option<()> {
4544 let provider = self.inline_completion_provider()?;
4545 let cursor = self.selections.newest_anchor().head();
4546 let (buffer, cursor_buffer_position) =
4547 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4548 if !self.show_inline_completions
4549 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4550 {
4551 return None;
4552 }
4553
4554 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4555 self.update_visible_inline_completion(cx);
4556
4557 Some(())
4558 }
4559
4560 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4561 if !self.has_active_inline_completion(cx) {
4562 self.refresh_inline_completion(false, cx);
4563 return;
4564 }
4565
4566 self.update_visible_inline_completion(cx);
4567 }
4568
4569 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4570 self.show_cursor_names(cx);
4571 }
4572
4573 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4574 self.show_cursor_names = true;
4575 cx.notify();
4576 cx.spawn(|this, mut cx| async move {
4577 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4578 this.update(&mut cx, |this, cx| {
4579 this.show_cursor_names = false;
4580 cx.notify()
4581 })
4582 .ok()
4583 })
4584 .detach();
4585 }
4586
4587 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4588 if self.has_active_inline_completion(cx) {
4589 self.cycle_inline_completion(Direction::Next, cx);
4590 } else {
4591 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4592 if is_copilot_disabled {
4593 cx.propagate();
4594 }
4595 }
4596 }
4597
4598 pub fn previous_inline_completion(
4599 &mut self,
4600 _: &PreviousInlineCompletion,
4601 cx: &mut ViewContext<Self>,
4602 ) {
4603 if self.has_active_inline_completion(cx) {
4604 self.cycle_inline_completion(Direction::Prev, cx);
4605 } else {
4606 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4607 if is_copilot_disabled {
4608 cx.propagate();
4609 }
4610 }
4611 }
4612
4613 pub fn accept_inline_completion(
4614 &mut self,
4615 _: &AcceptInlineCompletion,
4616 cx: &mut ViewContext<Self>,
4617 ) {
4618 let Some(completion) = self.take_active_inline_completion(cx) else {
4619 return;
4620 };
4621 if let Some(provider) = self.inline_completion_provider() {
4622 provider.accept(cx);
4623 }
4624
4625 cx.emit(EditorEvent::InputHandled {
4626 utf16_range_to_replace: None,
4627 text: completion.text.to_string().into(),
4628 });
4629 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4630 self.refresh_inline_completion(true, cx);
4631 cx.notify();
4632 }
4633
4634 pub fn accept_partial_inline_completion(
4635 &mut self,
4636 _: &AcceptPartialInlineCompletion,
4637 cx: &mut ViewContext<Self>,
4638 ) {
4639 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4640 if let Some(completion) = self.take_active_inline_completion(cx) {
4641 let mut partial_completion = completion
4642 .text
4643 .chars()
4644 .by_ref()
4645 .take_while(|c| c.is_alphabetic())
4646 .collect::<String>();
4647 if partial_completion.is_empty() {
4648 partial_completion = completion
4649 .text
4650 .chars()
4651 .by_ref()
4652 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4653 .collect::<String>();
4654 }
4655
4656 cx.emit(EditorEvent::InputHandled {
4657 utf16_range_to_replace: None,
4658 text: partial_completion.clone().into(),
4659 });
4660 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4661 self.refresh_inline_completion(true, cx);
4662 cx.notify();
4663 }
4664 }
4665 }
4666
4667 fn discard_inline_completion(
4668 &mut self,
4669 should_report_inline_completion_event: bool,
4670 cx: &mut ViewContext<Self>,
4671 ) -> bool {
4672 if let Some(provider) = self.inline_completion_provider() {
4673 provider.discard(should_report_inline_completion_event, cx);
4674 }
4675
4676 self.take_active_inline_completion(cx).is_some()
4677 }
4678
4679 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4680 if let Some(completion) = self.active_inline_completion.as_ref() {
4681 let buffer = self.buffer.read(cx).read(cx);
4682 completion.position.is_valid(&buffer)
4683 } else {
4684 false
4685 }
4686 }
4687
4688 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4689 let completion = self.active_inline_completion.take()?;
4690 self.display_map.update(cx, |map, cx| {
4691 map.splice_inlays(vec![completion.id], Default::default(), cx);
4692 });
4693 let buffer = self.buffer.read(cx).read(cx);
4694
4695 if completion.position.is_valid(&buffer) {
4696 Some(completion)
4697 } else {
4698 None
4699 }
4700 }
4701
4702 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4703 let selection = self.selections.newest_anchor();
4704 let cursor = selection.head();
4705
4706 if self.context_menu.read().is_none()
4707 && self.completion_tasks.is_empty()
4708 && selection.start == selection.end
4709 {
4710 if let Some(provider) = self.inline_completion_provider() {
4711 if let Some((buffer, cursor_buffer_position)) =
4712 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4713 {
4714 if let Some(text) =
4715 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4716 {
4717 let text = Rope::from(text);
4718 let mut to_remove = Vec::new();
4719 if let Some(completion) = self.active_inline_completion.take() {
4720 to_remove.push(completion.id);
4721 }
4722
4723 let completion_inlay =
4724 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4725 self.active_inline_completion = Some(completion_inlay.clone());
4726 self.display_map.update(cx, move |map, cx| {
4727 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4728 });
4729 cx.notify();
4730 return;
4731 }
4732 }
4733 }
4734 }
4735
4736 self.discard_inline_completion(false, cx);
4737 }
4738
4739 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4740 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4741 }
4742
4743 fn render_code_actions_indicator(
4744 &self,
4745 _style: &EditorStyle,
4746 row: DisplayRow,
4747 is_active: bool,
4748 cx: &mut ViewContext<Self>,
4749 ) -> Option<IconButton> {
4750 if self.available_code_actions.is_some() {
4751 Some(
4752 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4753 .icon_size(IconSize::XSmall)
4754 .size(ui::ButtonSize::None)
4755 .icon_color(Color::Muted)
4756 .selected(is_active)
4757 .on_click(cx.listener(move |editor, _e, cx| {
4758 editor.focus(cx);
4759 editor.toggle_code_actions(
4760 &ToggleCodeActions {
4761 deployed_from_indicator: Some(row),
4762 },
4763 cx,
4764 );
4765 })),
4766 )
4767 } else {
4768 None
4769 }
4770 }
4771
4772 fn clear_tasks(&mut self) {
4773 self.tasks.clear()
4774 }
4775
4776 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4777 if let Some(_) = self.tasks.insert(key, value) {
4778 // This case should hopefully be rare, but just in case...
4779 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4780 }
4781 }
4782
4783 fn render_run_indicator(
4784 &self,
4785 _style: &EditorStyle,
4786 is_active: bool,
4787 row: DisplayRow,
4788 cx: &mut ViewContext<Self>,
4789 ) -> IconButton {
4790 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4791 .icon_size(IconSize::XSmall)
4792 .size(ui::ButtonSize::None)
4793 .icon_color(Color::Muted)
4794 .selected(is_active)
4795 .on_click(cx.listener(move |editor, _e, cx| {
4796 editor.focus(cx);
4797 editor.toggle_code_actions(
4798 &ToggleCodeActions {
4799 deployed_from_indicator: Some(row),
4800 },
4801 cx,
4802 );
4803 }))
4804 }
4805
4806 pub fn context_menu_visible(&self) -> bool {
4807 self.context_menu
4808 .read()
4809 .as_ref()
4810 .map_or(false, |menu| menu.visible())
4811 }
4812
4813 fn render_context_menu(
4814 &self,
4815 cursor_position: DisplayPoint,
4816 style: &EditorStyle,
4817 max_height: Pixels,
4818 cx: &mut ViewContext<Editor>,
4819 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4820 self.context_menu.read().as_ref().map(|menu| {
4821 menu.render(
4822 cursor_position,
4823 style,
4824 max_height,
4825 self.workspace.as_ref().map(|(w, _)| w.clone()),
4826 cx,
4827 )
4828 })
4829 }
4830
4831 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4832 cx.notify();
4833 self.completion_tasks.clear();
4834 let context_menu = self.context_menu.write().take();
4835 if context_menu.is_some() {
4836 self.update_visible_inline_completion(cx);
4837 }
4838 context_menu
4839 }
4840
4841 pub fn insert_snippet(
4842 &mut self,
4843 insertion_ranges: &[Range<usize>],
4844 snippet: Snippet,
4845 cx: &mut ViewContext<Self>,
4846 ) -> Result<()> {
4847 struct Tabstop<T> {
4848 is_end_tabstop: bool,
4849 ranges: Vec<Range<T>>,
4850 }
4851
4852 let tabstops = self.buffer.update(cx, |buffer, cx| {
4853 let snippet_text: Arc<str> = snippet.text.clone().into();
4854 buffer.edit(
4855 insertion_ranges
4856 .iter()
4857 .cloned()
4858 .map(|range| (range, snippet_text.clone())),
4859 Some(AutoindentMode::EachLine),
4860 cx,
4861 );
4862
4863 let snapshot = &*buffer.read(cx);
4864 let snippet = &snippet;
4865 snippet
4866 .tabstops
4867 .iter()
4868 .map(|tabstop| {
4869 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4870 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4871 });
4872 let mut tabstop_ranges = tabstop
4873 .iter()
4874 .flat_map(|tabstop_range| {
4875 let mut delta = 0_isize;
4876 insertion_ranges.iter().map(move |insertion_range| {
4877 let insertion_start = insertion_range.start as isize + delta;
4878 delta +=
4879 snippet.text.len() as isize - insertion_range.len() as isize;
4880
4881 let start = ((insertion_start + tabstop_range.start) as usize)
4882 .min(snapshot.len());
4883 let end = ((insertion_start + tabstop_range.end) as usize)
4884 .min(snapshot.len());
4885 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4886 })
4887 })
4888 .collect::<Vec<_>>();
4889 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4890
4891 Tabstop {
4892 is_end_tabstop,
4893 ranges: tabstop_ranges,
4894 }
4895 })
4896 .collect::<Vec<_>>()
4897 });
4898
4899 if let Some(tabstop) = tabstops.first() {
4900 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4901 s.select_ranges(tabstop.ranges.iter().cloned());
4902 });
4903
4904 // If we're already at the last tabstop and it's at the end of the snippet,
4905 // we're done, we don't need to keep the state around.
4906 if !tabstop.is_end_tabstop {
4907 let ranges = tabstops
4908 .into_iter()
4909 .map(|tabstop| tabstop.ranges)
4910 .collect::<Vec<_>>();
4911 self.snippet_stack.push(SnippetState {
4912 active_index: 0,
4913 ranges,
4914 });
4915 }
4916
4917 // Check whether the just-entered snippet ends with an auto-closable bracket.
4918 if self.autoclose_regions.is_empty() {
4919 let snapshot = self.buffer.read(cx).snapshot(cx);
4920 for selection in &mut self.selections.all::<Point>(cx) {
4921 let selection_head = selection.head();
4922 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4923 continue;
4924 };
4925
4926 let mut bracket_pair = None;
4927 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4928 let prev_chars = snapshot
4929 .reversed_chars_at(selection_head)
4930 .collect::<String>();
4931 for (pair, enabled) in scope.brackets() {
4932 if enabled
4933 && pair.close
4934 && prev_chars.starts_with(pair.start.as_str())
4935 && next_chars.starts_with(pair.end.as_str())
4936 {
4937 bracket_pair = Some(pair.clone());
4938 break;
4939 }
4940 }
4941 if let Some(pair) = bracket_pair {
4942 let start = snapshot.anchor_after(selection_head);
4943 let end = snapshot.anchor_after(selection_head);
4944 self.autoclose_regions.push(AutocloseRegion {
4945 selection_id: selection.id,
4946 range: start..end,
4947 pair,
4948 });
4949 }
4950 }
4951 }
4952 }
4953 Ok(())
4954 }
4955
4956 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4957 self.move_to_snippet_tabstop(Bias::Right, cx)
4958 }
4959
4960 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4961 self.move_to_snippet_tabstop(Bias::Left, cx)
4962 }
4963
4964 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4965 if let Some(mut snippet) = self.snippet_stack.pop() {
4966 match bias {
4967 Bias::Left => {
4968 if snippet.active_index > 0 {
4969 snippet.active_index -= 1;
4970 } else {
4971 self.snippet_stack.push(snippet);
4972 return false;
4973 }
4974 }
4975 Bias::Right => {
4976 if snippet.active_index + 1 < snippet.ranges.len() {
4977 snippet.active_index += 1;
4978 } else {
4979 self.snippet_stack.push(snippet);
4980 return false;
4981 }
4982 }
4983 }
4984 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4985 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4986 s.select_anchor_ranges(current_ranges.iter().cloned())
4987 });
4988 // If snippet state is not at the last tabstop, push it back on the stack
4989 if snippet.active_index + 1 < snippet.ranges.len() {
4990 self.snippet_stack.push(snippet);
4991 }
4992 return true;
4993 }
4994 }
4995
4996 false
4997 }
4998
4999 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5000 self.transact(cx, |this, cx| {
5001 this.select_all(&SelectAll, cx);
5002 this.insert("", cx);
5003 });
5004 }
5005
5006 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5007 self.transact(cx, |this, cx| {
5008 this.select_autoclose_pair(cx);
5009 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5010 if !this.selections.line_mode {
5011 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5012 for selection in &mut selections {
5013 if selection.is_empty() {
5014 let old_head = selection.head();
5015 let mut new_head =
5016 movement::left(&display_map, old_head.to_display_point(&display_map))
5017 .to_point(&display_map);
5018 if let Some((buffer, line_buffer_range)) = display_map
5019 .buffer_snapshot
5020 .buffer_line_for_row(MultiBufferRow(old_head.row))
5021 {
5022 let indent_size =
5023 buffer.indent_size_for_line(line_buffer_range.start.row);
5024 let indent_len = match indent_size.kind {
5025 IndentKind::Space => {
5026 buffer.settings_at(line_buffer_range.start, cx).tab_size
5027 }
5028 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5029 };
5030 if old_head.column <= indent_size.len && old_head.column > 0 {
5031 let indent_len = indent_len.get();
5032 new_head = cmp::min(
5033 new_head,
5034 MultiBufferPoint::new(
5035 old_head.row,
5036 ((old_head.column - 1) / indent_len) * indent_len,
5037 ),
5038 );
5039 }
5040 }
5041
5042 selection.set_head(new_head, SelectionGoal::None);
5043 }
5044 }
5045 }
5046
5047 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5048 this.insert("", cx);
5049 this.refresh_inline_completion(true, cx);
5050 });
5051 }
5052
5053 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5054 self.transact(cx, |this, cx| {
5055 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5056 let line_mode = s.line_mode;
5057 s.move_with(|map, selection| {
5058 if selection.is_empty() && !line_mode {
5059 let cursor = movement::right(map, selection.head());
5060 selection.end = cursor;
5061 selection.reversed = true;
5062 selection.goal = SelectionGoal::None;
5063 }
5064 })
5065 });
5066 this.insert("", cx);
5067 this.refresh_inline_completion(true, cx);
5068 });
5069 }
5070
5071 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5072 if self.move_to_prev_snippet_tabstop(cx) {
5073 return;
5074 }
5075
5076 self.outdent(&Outdent, cx);
5077 }
5078
5079 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5080 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5081 return;
5082 }
5083
5084 let mut selections = self.selections.all_adjusted(cx);
5085 let buffer = self.buffer.read(cx);
5086 let snapshot = buffer.snapshot(cx);
5087 let rows_iter = selections.iter().map(|s| s.head().row);
5088 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5089
5090 let mut edits = Vec::new();
5091 let mut prev_edited_row = 0;
5092 let mut row_delta = 0;
5093 for selection in &mut selections {
5094 if selection.start.row != prev_edited_row {
5095 row_delta = 0;
5096 }
5097 prev_edited_row = selection.end.row;
5098
5099 // If the selection is non-empty, then increase the indentation of the selected lines.
5100 if !selection.is_empty() {
5101 row_delta =
5102 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5103 continue;
5104 }
5105
5106 // If the selection is empty and the cursor is in the leading whitespace before the
5107 // suggested indentation, then auto-indent the line.
5108 let cursor = selection.head();
5109 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5110 if let Some(suggested_indent) =
5111 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5112 {
5113 if cursor.column < suggested_indent.len
5114 && cursor.column <= current_indent.len
5115 && current_indent.len <= suggested_indent.len
5116 {
5117 selection.start = Point::new(cursor.row, suggested_indent.len);
5118 selection.end = selection.start;
5119 if row_delta == 0 {
5120 edits.extend(Buffer::edit_for_indent_size_adjustment(
5121 cursor.row,
5122 current_indent,
5123 suggested_indent,
5124 ));
5125 row_delta = suggested_indent.len - current_indent.len;
5126 }
5127 continue;
5128 }
5129 }
5130
5131 // Otherwise, insert a hard or soft tab.
5132 let settings = buffer.settings_at(cursor, cx);
5133 let tab_size = if settings.hard_tabs {
5134 IndentSize::tab()
5135 } else {
5136 let tab_size = settings.tab_size.get();
5137 let char_column = snapshot
5138 .text_for_range(Point::new(cursor.row, 0)..cursor)
5139 .flat_map(str::chars)
5140 .count()
5141 + row_delta as usize;
5142 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5143 IndentSize::spaces(chars_to_next_tab_stop)
5144 };
5145 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5146 selection.end = selection.start;
5147 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5148 row_delta += tab_size.len;
5149 }
5150
5151 self.transact(cx, |this, cx| {
5152 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5153 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5154 this.refresh_inline_completion(true, cx);
5155 });
5156 }
5157
5158 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5159 if self.read_only(cx) {
5160 return;
5161 }
5162 let mut selections = self.selections.all::<Point>(cx);
5163 let mut prev_edited_row = 0;
5164 let mut row_delta = 0;
5165 let mut edits = Vec::new();
5166 let buffer = self.buffer.read(cx);
5167 let snapshot = buffer.snapshot(cx);
5168 for selection in &mut selections {
5169 if selection.start.row != prev_edited_row {
5170 row_delta = 0;
5171 }
5172 prev_edited_row = selection.end.row;
5173
5174 row_delta =
5175 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5176 }
5177
5178 self.transact(cx, |this, cx| {
5179 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5180 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5181 });
5182 }
5183
5184 fn indent_selection(
5185 buffer: &MultiBuffer,
5186 snapshot: &MultiBufferSnapshot,
5187 selection: &mut Selection<Point>,
5188 edits: &mut Vec<(Range<Point>, String)>,
5189 delta_for_start_row: u32,
5190 cx: &AppContext,
5191 ) -> u32 {
5192 let settings = buffer.settings_at(selection.start, cx);
5193 let tab_size = settings.tab_size.get();
5194 let indent_kind = if settings.hard_tabs {
5195 IndentKind::Tab
5196 } else {
5197 IndentKind::Space
5198 };
5199 let mut start_row = selection.start.row;
5200 let mut end_row = selection.end.row + 1;
5201
5202 // If a selection ends at the beginning of a line, don't indent
5203 // that last line.
5204 if selection.end.column == 0 && selection.end.row > selection.start.row {
5205 end_row -= 1;
5206 }
5207
5208 // Avoid re-indenting a row that has already been indented by a
5209 // previous selection, but still update this selection's column
5210 // to reflect that indentation.
5211 if delta_for_start_row > 0 {
5212 start_row += 1;
5213 selection.start.column += delta_for_start_row;
5214 if selection.end.row == selection.start.row {
5215 selection.end.column += delta_for_start_row;
5216 }
5217 }
5218
5219 let mut delta_for_end_row = 0;
5220 let has_multiple_rows = start_row + 1 != end_row;
5221 for row in start_row..end_row {
5222 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5223 let indent_delta = match (current_indent.kind, indent_kind) {
5224 (IndentKind::Space, IndentKind::Space) => {
5225 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5226 IndentSize::spaces(columns_to_next_tab_stop)
5227 }
5228 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5229 (_, IndentKind::Tab) => IndentSize::tab(),
5230 };
5231
5232 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5233 0
5234 } else {
5235 selection.start.column
5236 };
5237 let row_start = Point::new(row, start);
5238 edits.push((
5239 row_start..row_start,
5240 indent_delta.chars().collect::<String>(),
5241 ));
5242
5243 // Update this selection's endpoints to reflect the indentation.
5244 if row == selection.start.row {
5245 selection.start.column += indent_delta.len;
5246 }
5247 if row == selection.end.row {
5248 selection.end.column += indent_delta.len;
5249 delta_for_end_row = indent_delta.len;
5250 }
5251 }
5252
5253 if selection.start.row == selection.end.row {
5254 delta_for_start_row + delta_for_end_row
5255 } else {
5256 delta_for_end_row
5257 }
5258 }
5259
5260 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5261 if self.read_only(cx) {
5262 return;
5263 }
5264 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5265 let selections = self.selections.all::<Point>(cx);
5266 let mut deletion_ranges = Vec::new();
5267 let mut last_outdent = None;
5268 {
5269 let buffer = self.buffer.read(cx);
5270 let snapshot = buffer.snapshot(cx);
5271 for selection in &selections {
5272 let settings = buffer.settings_at(selection.start, cx);
5273 let tab_size = settings.tab_size.get();
5274 let mut rows = selection.spanned_rows(false, &display_map);
5275
5276 // Avoid re-outdenting a row that has already been outdented by a
5277 // previous selection.
5278 if let Some(last_row) = last_outdent {
5279 if last_row == rows.start {
5280 rows.start = rows.start.next_row();
5281 }
5282 }
5283 let has_multiple_rows = rows.len() > 1;
5284 for row in rows.iter_rows() {
5285 let indent_size = snapshot.indent_size_for_line(row);
5286 if indent_size.len > 0 {
5287 let deletion_len = match indent_size.kind {
5288 IndentKind::Space => {
5289 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5290 if columns_to_prev_tab_stop == 0 {
5291 tab_size
5292 } else {
5293 columns_to_prev_tab_stop
5294 }
5295 }
5296 IndentKind::Tab => 1,
5297 };
5298 let start = if has_multiple_rows
5299 || deletion_len > selection.start.column
5300 || indent_size.len < selection.start.column
5301 {
5302 0
5303 } else {
5304 selection.start.column - deletion_len
5305 };
5306 deletion_ranges.push(
5307 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5308 );
5309 last_outdent = Some(row);
5310 }
5311 }
5312 }
5313 }
5314
5315 self.transact(cx, |this, cx| {
5316 this.buffer.update(cx, |buffer, cx| {
5317 let empty_str: Arc<str> = "".into();
5318 buffer.edit(
5319 deletion_ranges
5320 .into_iter()
5321 .map(|range| (range, empty_str.clone())),
5322 None,
5323 cx,
5324 );
5325 });
5326 let selections = this.selections.all::<usize>(cx);
5327 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5328 });
5329 }
5330
5331 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5332 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5333 let selections = self.selections.all::<Point>(cx);
5334
5335 let mut new_cursors = Vec::new();
5336 let mut edit_ranges = Vec::new();
5337 let mut selections = selections.iter().peekable();
5338 while let Some(selection) = selections.next() {
5339 let mut rows = selection.spanned_rows(false, &display_map);
5340 let goal_display_column = selection.head().to_display_point(&display_map).column();
5341
5342 // Accumulate contiguous regions of rows that we want to delete.
5343 while let Some(next_selection) = selections.peek() {
5344 let next_rows = next_selection.spanned_rows(false, &display_map);
5345 if next_rows.start <= rows.end {
5346 rows.end = next_rows.end;
5347 selections.next().unwrap();
5348 } else {
5349 break;
5350 }
5351 }
5352
5353 let buffer = &display_map.buffer_snapshot;
5354 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5355 let edit_end;
5356 let cursor_buffer_row;
5357 if buffer.max_point().row >= rows.end.0 {
5358 // If there's a line after the range, delete the \n from the end of the row range
5359 // and position the cursor on the next line.
5360 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5361 cursor_buffer_row = rows.end;
5362 } else {
5363 // If there isn't a line after the range, delete the \n from the line before the
5364 // start of the row range and position the cursor there.
5365 edit_start = edit_start.saturating_sub(1);
5366 edit_end = buffer.len();
5367 cursor_buffer_row = rows.start.previous_row();
5368 }
5369
5370 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5371 *cursor.column_mut() =
5372 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5373
5374 new_cursors.push((
5375 selection.id,
5376 buffer.anchor_after(cursor.to_point(&display_map)),
5377 ));
5378 edit_ranges.push(edit_start..edit_end);
5379 }
5380
5381 self.transact(cx, |this, cx| {
5382 let buffer = this.buffer.update(cx, |buffer, cx| {
5383 let empty_str: Arc<str> = "".into();
5384 buffer.edit(
5385 edit_ranges
5386 .into_iter()
5387 .map(|range| (range, empty_str.clone())),
5388 None,
5389 cx,
5390 );
5391 buffer.snapshot(cx)
5392 });
5393 let new_selections = new_cursors
5394 .into_iter()
5395 .map(|(id, cursor)| {
5396 let cursor = cursor.to_point(&buffer);
5397 Selection {
5398 id,
5399 start: cursor,
5400 end: cursor,
5401 reversed: false,
5402 goal: SelectionGoal::None,
5403 }
5404 })
5405 .collect();
5406
5407 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5408 s.select(new_selections);
5409 });
5410 });
5411 }
5412
5413 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5414 if self.read_only(cx) {
5415 return;
5416 }
5417 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5418 for selection in self.selections.all::<Point>(cx) {
5419 let start = MultiBufferRow(selection.start.row);
5420 let end = if selection.start.row == selection.end.row {
5421 MultiBufferRow(selection.start.row + 1)
5422 } else {
5423 MultiBufferRow(selection.end.row)
5424 };
5425
5426 if let Some(last_row_range) = row_ranges.last_mut() {
5427 if start <= last_row_range.end {
5428 last_row_range.end = end;
5429 continue;
5430 }
5431 }
5432 row_ranges.push(start..end);
5433 }
5434
5435 let snapshot = self.buffer.read(cx).snapshot(cx);
5436 let mut cursor_positions = Vec::new();
5437 for row_range in &row_ranges {
5438 let anchor = snapshot.anchor_before(Point::new(
5439 row_range.end.previous_row().0,
5440 snapshot.line_len(row_range.end.previous_row()),
5441 ));
5442 cursor_positions.push(anchor..anchor);
5443 }
5444
5445 self.transact(cx, |this, cx| {
5446 for row_range in row_ranges.into_iter().rev() {
5447 for row in row_range.iter_rows().rev() {
5448 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5449 let next_line_row = row.next_row();
5450 let indent = snapshot.indent_size_for_line(next_line_row);
5451 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5452
5453 let replace = if snapshot.line_len(next_line_row) > indent.len {
5454 " "
5455 } else {
5456 ""
5457 };
5458
5459 this.buffer.update(cx, |buffer, cx| {
5460 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5461 });
5462 }
5463 }
5464
5465 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5466 s.select_anchor_ranges(cursor_positions)
5467 });
5468 });
5469 }
5470
5471 pub fn sort_lines_case_sensitive(
5472 &mut self,
5473 _: &SortLinesCaseSensitive,
5474 cx: &mut ViewContext<Self>,
5475 ) {
5476 self.manipulate_lines(cx, |lines| lines.sort())
5477 }
5478
5479 pub fn sort_lines_case_insensitive(
5480 &mut self,
5481 _: &SortLinesCaseInsensitive,
5482 cx: &mut ViewContext<Self>,
5483 ) {
5484 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5485 }
5486
5487 pub fn unique_lines_case_insensitive(
5488 &mut self,
5489 _: &UniqueLinesCaseInsensitive,
5490 cx: &mut ViewContext<Self>,
5491 ) {
5492 self.manipulate_lines(cx, |lines| {
5493 let mut seen = HashSet::default();
5494 lines.retain(|line| seen.insert(line.to_lowercase()));
5495 })
5496 }
5497
5498 pub fn unique_lines_case_sensitive(
5499 &mut self,
5500 _: &UniqueLinesCaseSensitive,
5501 cx: &mut ViewContext<Self>,
5502 ) {
5503 self.manipulate_lines(cx, |lines| {
5504 let mut seen = HashSet::default();
5505 lines.retain(|line| seen.insert(*line));
5506 })
5507 }
5508
5509 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5510 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5511 if !revert_changes.is_empty() {
5512 self.transact(cx, |editor, cx| {
5513 editor.buffer().update(cx, |multi_buffer, cx| {
5514 for (buffer_id, changes) in revert_changes {
5515 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5516 buffer.update(cx, |buffer, cx| {
5517 buffer.edit(
5518 changes.into_iter().map(|(range, text)| {
5519 (range, text.to_string().map(Arc::<str>::from))
5520 }),
5521 None,
5522 cx,
5523 );
5524 });
5525 }
5526 }
5527 });
5528 editor.change_selections(None, cx, |selections| selections.refresh());
5529 });
5530 }
5531 }
5532
5533 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5534 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5535 let project_path = buffer.read(cx).project_path(cx)?;
5536 let project = self.project.as_ref()?.read(cx);
5537 let entry = project.entry_for_path(&project_path, cx)?;
5538 let abs_path = project.absolute_path(&project_path, cx)?;
5539 let parent = if entry.is_symlink {
5540 abs_path.canonicalize().ok()?
5541 } else {
5542 abs_path
5543 }
5544 .parent()?
5545 .to_path_buf();
5546 Some(parent)
5547 }) {
5548 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5549 }
5550 }
5551
5552 fn gather_revert_changes(
5553 &mut self,
5554 selections: &[Selection<Anchor>],
5555 cx: &mut ViewContext<'_, Editor>,
5556 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5557 let mut revert_changes = HashMap::default();
5558 self.buffer.update(cx, |multi_buffer, cx| {
5559 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5560 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5561 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5562 }
5563 });
5564 revert_changes
5565 }
5566
5567 fn prepare_revert_change(
5568 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5569 multi_buffer: &MultiBuffer,
5570 hunk: &DiffHunk<MultiBufferRow>,
5571 cx: &mut AppContext,
5572 ) -> Option<()> {
5573 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5574 let buffer = buffer.read(cx);
5575 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5576 let buffer_snapshot = buffer.snapshot();
5577 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5578 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5579 probe
5580 .0
5581 .start
5582 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5583 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5584 }) {
5585 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5586 Some(())
5587 } else {
5588 None
5589 }
5590 }
5591
5592 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5593 self.manipulate_lines(cx, |lines| lines.reverse())
5594 }
5595
5596 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5597 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5598 }
5599
5600 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5601 where
5602 Fn: FnMut(&mut Vec<&str>),
5603 {
5604 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5605 let buffer = self.buffer.read(cx).snapshot(cx);
5606
5607 let mut edits = Vec::new();
5608
5609 let selections = self.selections.all::<Point>(cx);
5610 let mut selections = selections.iter().peekable();
5611 let mut contiguous_row_selections = Vec::new();
5612 let mut new_selections = Vec::new();
5613 let mut added_lines = 0;
5614 let mut removed_lines = 0;
5615
5616 while let Some(selection) = selections.next() {
5617 let (start_row, end_row) = consume_contiguous_rows(
5618 &mut contiguous_row_selections,
5619 selection,
5620 &display_map,
5621 &mut selections,
5622 );
5623
5624 let start_point = Point::new(start_row.0, 0);
5625 let end_point = Point::new(
5626 end_row.previous_row().0,
5627 buffer.line_len(end_row.previous_row()),
5628 );
5629 let text = buffer
5630 .text_for_range(start_point..end_point)
5631 .collect::<String>();
5632
5633 let mut lines = text.split('\n').collect_vec();
5634
5635 let lines_before = lines.len();
5636 callback(&mut lines);
5637 let lines_after = lines.len();
5638
5639 edits.push((start_point..end_point, lines.join("\n")));
5640
5641 // Selections must change based on added and removed line count
5642 let start_row =
5643 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5644 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5645 new_selections.push(Selection {
5646 id: selection.id,
5647 start: start_row,
5648 end: end_row,
5649 goal: SelectionGoal::None,
5650 reversed: selection.reversed,
5651 });
5652
5653 if lines_after > lines_before {
5654 added_lines += lines_after - lines_before;
5655 } else if lines_before > lines_after {
5656 removed_lines += lines_before - lines_after;
5657 }
5658 }
5659
5660 self.transact(cx, |this, cx| {
5661 let buffer = this.buffer.update(cx, |buffer, cx| {
5662 buffer.edit(edits, None, cx);
5663 buffer.snapshot(cx)
5664 });
5665
5666 // Recalculate offsets on newly edited buffer
5667 let new_selections = new_selections
5668 .iter()
5669 .map(|s| {
5670 let start_point = Point::new(s.start.0, 0);
5671 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5672 Selection {
5673 id: s.id,
5674 start: buffer.point_to_offset(start_point),
5675 end: buffer.point_to_offset(end_point),
5676 goal: s.goal,
5677 reversed: s.reversed,
5678 }
5679 })
5680 .collect();
5681
5682 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5683 s.select(new_selections);
5684 });
5685
5686 this.request_autoscroll(Autoscroll::fit(), cx);
5687 });
5688 }
5689
5690 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5691 self.manipulate_text(cx, |text| text.to_uppercase())
5692 }
5693
5694 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5695 self.manipulate_text(cx, |text| text.to_lowercase())
5696 }
5697
5698 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5699 self.manipulate_text(cx, |text| {
5700 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5701 // https://github.com/rutrum/convert-case/issues/16
5702 text.split('\n')
5703 .map(|line| line.to_case(Case::Title))
5704 .join("\n")
5705 })
5706 }
5707
5708 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5709 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5710 }
5711
5712 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5713 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5714 }
5715
5716 pub fn convert_to_upper_camel_case(
5717 &mut self,
5718 _: &ConvertToUpperCamelCase,
5719 cx: &mut ViewContext<Self>,
5720 ) {
5721 self.manipulate_text(cx, |text| {
5722 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5723 // https://github.com/rutrum/convert-case/issues/16
5724 text.split('\n')
5725 .map(|line| line.to_case(Case::UpperCamel))
5726 .join("\n")
5727 })
5728 }
5729
5730 pub fn convert_to_lower_camel_case(
5731 &mut self,
5732 _: &ConvertToLowerCamelCase,
5733 cx: &mut ViewContext<Self>,
5734 ) {
5735 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5736 }
5737
5738 pub fn convert_to_opposite_case(
5739 &mut self,
5740 _: &ConvertToOppositeCase,
5741 cx: &mut ViewContext<Self>,
5742 ) {
5743 self.manipulate_text(cx, |text| {
5744 text.chars()
5745 .fold(String::with_capacity(text.len()), |mut t, c| {
5746 if c.is_uppercase() {
5747 t.extend(c.to_lowercase());
5748 } else {
5749 t.extend(c.to_uppercase());
5750 }
5751 t
5752 })
5753 })
5754 }
5755
5756 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5757 where
5758 Fn: FnMut(&str) -> String,
5759 {
5760 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5761 let buffer = self.buffer.read(cx).snapshot(cx);
5762
5763 let mut new_selections = Vec::new();
5764 let mut edits = Vec::new();
5765 let mut selection_adjustment = 0i32;
5766
5767 for selection in self.selections.all::<usize>(cx) {
5768 let selection_is_empty = selection.is_empty();
5769
5770 let (start, end) = if selection_is_empty {
5771 let word_range = movement::surrounding_word(
5772 &display_map,
5773 selection.start.to_display_point(&display_map),
5774 );
5775 let start = word_range.start.to_offset(&display_map, Bias::Left);
5776 let end = word_range.end.to_offset(&display_map, Bias::Left);
5777 (start, end)
5778 } else {
5779 (selection.start, selection.end)
5780 };
5781
5782 let text = buffer.text_for_range(start..end).collect::<String>();
5783 let old_length = text.len() as i32;
5784 let text = callback(&text);
5785
5786 new_selections.push(Selection {
5787 start: (start as i32 - selection_adjustment) as usize,
5788 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5789 goal: SelectionGoal::None,
5790 ..selection
5791 });
5792
5793 selection_adjustment += old_length - text.len() as i32;
5794
5795 edits.push((start..end, text));
5796 }
5797
5798 self.transact(cx, |this, cx| {
5799 this.buffer.update(cx, |buffer, cx| {
5800 buffer.edit(edits, None, cx);
5801 });
5802
5803 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5804 s.select(new_selections);
5805 });
5806
5807 this.request_autoscroll(Autoscroll::fit(), cx);
5808 });
5809 }
5810
5811 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5812 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5813 let buffer = &display_map.buffer_snapshot;
5814 let selections = self.selections.all::<Point>(cx);
5815
5816 let mut edits = Vec::new();
5817 let mut selections_iter = selections.iter().peekable();
5818 while let Some(selection) = selections_iter.next() {
5819 // Avoid duplicating the same lines twice.
5820 let mut rows = selection.spanned_rows(false, &display_map);
5821
5822 while let Some(next_selection) = selections_iter.peek() {
5823 let next_rows = next_selection.spanned_rows(false, &display_map);
5824 if next_rows.start < rows.end {
5825 rows.end = next_rows.end;
5826 selections_iter.next().unwrap();
5827 } else {
5828 break;
5829 }
5830 }
5831
5832 // Copy the text from the selected row region and splice it either at the start
5833 // or end of the region.
5834 let start = Point::new(rows.start.0, 0);
5835 let end = Point::new(
5836 rows.end.previous_row().0,
5837 buffer.line_len(rows.end.previous_row()),
5838 );
5839 let text = buffer
5840 .text_for_range(start..end)
5841 .chain(Some("\n"))
5842 .collect::<String>();
5843 let insert_location = if upwards {
5844 Point::new(rows.end.0, 0)
5845 } else {
5846 start
5847 };
5848 edits.push((insert_location..insert_location, text));
5849 }
5850
5851 self.transact(cx, |this, cx| {
5852 this.buffer.update(cx, |buffer, cx| {
5853 buffer.edit(edits, None, cx);
5854 });
5855
5856 this.request_autoscroll(Autoscroll::fit(), cx);
5857 });
5858 }
5859
5860 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5861 self.duplicate_line(true, cx);
5862 }
5863
5864 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5865 self.duplicate_line(false, cx);
5866 }
5867
5868 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5869 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5870 let buffer = self.buffer.read(cx).snapshot(cx);
5871
5872 let mut edits = Vec::new();
5873 let mut unfold_ranges = Vec::new();
5874 let mut refold_ranges = Vec::new();
5875
5876 let selections = self.selections.all::<Point>(cx);
5877 let mut selections = selections.iter().peekable();
5878 let mut contiguous_row_selections = Vec::new();
5879 let mut new_selections = Vec::new();
5880
5881 while let Some(selection) = selections.next() {
5882 // Find all the selections that span a contiguous row range
5883 let (start_row, end_row) = consume_contiguous_rows(
5884 &mut contiguous_row_selections,
5885 selection,
5886 &display_map,
5887 &mut selections,
5888 );
5889
5890 // Move the text spanned by the row range to be before the line preceding the row range
5891 if start_row.0 > 0 {
5892 let range_to_move = Point::new(
5893 start_row.previous_row().0,
5894 buffer.line_len(start_row.previous_row()),
5895 )
5896 ..Point::new(
5897 end_row.previous_row().0,
5898 buffer.line_len(end_row.previous_row()),
5899 );
5900 let insertion_point = display_map
5901 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5902 .0;
5903
5904 // Don't move lines across excerpts
5905 if buffer
5906 .excerpt_boundaries_in_range((
5907 Bound::Excluded(insertion_point),
5908 Bound::Included(range_to_move.end),
5909 ))
5910 .next()
5911 .is_none()
5912 {
5913 let text = buffer
5914 .text_for_range(range_to_move.clone())
5915 .flat_map(|s| s.chars())
5916 .skip(1)
5917 .chain(['\n'])
5918 .collect::<String>();
5919
5920 edits.push((
5921 buffer.anchor_after(range_to_move.start)
5922 ..buffer.anchor_before(range_to_move.end),
5923 String::new(),
5924 ));
5925 let insertion_anchor = buffer.anchor_after(insertion_point);
5926 edits.push((insertion_anchor..insertion_anchor, text));
5927
5928 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5929
5930 // Move selections up
5931 new_selections.extend(contiguous_row_selections.drain(..).map(
5932 |mut selection| {
5933 selection.start.row -= row_delta;
5934 selection.end.row -= row_delta;
5935 selection
5936 },
5937 ));
5938
5939 // Move folds up
5940 unfold_ranges.push(range_to_move.clone());
5941 for fold in display_map.folds_in_range(
5942 buffer.anchor_before(range_to_move.start)
5943 ..buffer.anchor_after(range_to_move.end),
5944 ) {
5945 let mut start = fold.range.start.to_point(&buffer);
5946 let mut end = fold.range.end.to_point(&buffer);
5947 start.row -= row_delta;
5948 end.row -= row_delta;
5949 refold_ranges.push((start..end, fold.placeholder.clone()));
5950 }
5951 }
5952 }
5953
5954 // If we didn't move line(s), preserve the existing selections
5955 new_selections.append(&mut contiguous_row_selections);
5956 }
5957
5958 self.transact(cx, |this, cx| {
5959 this.unfold_ranges(unfold_ranges, true, true, cx);
5960 this.buffer.update(cx, |buffer, cx| {
5961 for (range, text) in edits {
5962 buffer.edit([(range, text)], None, cx);
5963 }
5964 });
5965 this.fold_ranges(refold_ranges, true, cx);
5966 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5967 s.select(new_selections);
5968 })
5969 });
5970 }
5971
5972 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5973 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5974 let buffer = self.buffer.read(cx).snapshot(cx);
5975
5976 let mut edits = Vec::new();
5977 let mut unfold_ranges = Vec::new();
5978 let mut refold_ranges = Vec::new();
5979
5980 let selections = self.selections.all::<Point>(cx);
5981 let mut selections = selections.iter().peekable();
5982 let mut contiguous_row_selections = Vec::new();
5983 let mut new_selections = Vec::new();
5984
5985 while let Some(selection) = selections.next() {
5986 // Find all the selections that span a contiguous row range
5987 let (start_row, end_row) = consume_contiguous_rows(
5988 &mut contiguous_row_selections,
5989 selection,
5990 &display_map,
5991 &mut selections,
5992 );
5993
5994 // Move the text spanned by the row range to be after the last line of the row range
5995 if end_row.0 <= buffer.max_point().row {
5996 let range_to_move =
5997 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5998 let insertion_point = display_map
5999 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6000 .0;
6001
6002 // Don't move lines across excerpt boundaries
6003 if buffer
6004 .excerpt_boundaries_in_range((
6005 Bound::Excluded(range_to_move.start),
6006 Bound::Included(insertion_point),
6007 ))
6008 .next()
6009 .is_none()
6010 {
6011 let mut text = String::from("\n");
6012 text.extend(buffer.text_for_range(range_to_move.clone()));
6013 text.pop(); // Drop trailing newline
6014 edits.push((
6015 buffer.anchor_after(range_to_move.start)
6016 ..buffer.anchor_before(range_to_move.end),
6017 String::new(),
6018 ));
6019 let insertion_anchor = buffer.anchor_after(insertion_point);
6020 edits.push((insertion_anchor..insertion_anchor, text));
6021
6022 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6023
6024 // Move selections down
6025 new_selections.extend(contiguous_row_selections.drain(..).map(
6026 |mut selection| {
6027 selection.start.row += row_delta;
6028 selection.end.row += row_delta;
6029 selection
6030 },
6031 ));
6032
6033 // Move folds down
6034 unfold_ranges.push(range_to_move.clone());
6035 for fold in display_map.folds_in_range(
6036 buffer.anchor_before(range_to_move.start)
6037 ..buffer.anchor_after(range_to_move.end),
6038 ) {
6039 let mut start = fold.range.start.to_point(&buffer);
6040 let mut end = fold.range.end.to_point(&buffer);
6041 start.row += row_delta;
6042 end.row += row_delta;
6043 refold_ranges.push((start..end, fold.placeholder.clone()));
6044 }
6045 }
6046 }
6047
6048 // If we didn't move line(s), preserve the existing selections
6049 new_selections.append(&mut contiguous_row_selections);
6050 }
6051
6052 self.transact(cx, |this, cx| {
6053 this.unfold_ranges(unfold_ranges, true, true, cx);
6054 this.buffer.update(cx, |buffer, cx| {
6055 for (range, text) in edits {
6056 buffer.edit([(range, text)], None, cx);
6057 }
6058 });
6059 this.fold_ranges(refold_ranges, true, cx);
6060 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6061 });
6062 }
6063
6064 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6065 let text_layout_details = &self.text_layout_details(cx);
6066 self.transact(cx, |this, cx| {
6067 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6068 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6069 let line_mode = s.line_mode;
6070 s.move_with(|display_map, selection| {
6071 if !selection.is_empty() || line_mode {
6072 return;
6073 }
6074
6075 let mut head = selection.head();
6076 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6077 if head.column() == display_map.line_len(head.row()) {
6078 transpose_offset = display_map
6079 .buffer_snapshot
6080 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6081 }
6082
6083 if transpose_offset == 0 {
6084 return;
6085 }
6086
6087 *head.column_mut() += 1;
6088 head = display_map.clip_point(head, Bias::Right);
6089 let goal = SelectionGoal::HorizontalPosition(
6090 display_map
6091 .x_for_display_point(head, &text_layout_details)
6092 .into(),
6093 );
6094 selection.collapse_to(head, goal);
6095
6096 let transpose_start = display_map
6097 .buffer_snapshot
6098 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6099 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6100 let transpose_end = display_map
6101 .buffer_snapshot
6102 .clip_offset(transpose_offset + 1, Bias::Right);
6103 if let Some(ch) =
6104 display_map.buffer_snapshot.chars_at(transpose_start).next()
6105 {
6106 edits.push((transpose_start..transpose_offset, String::new()));
6107 edits.push((transpose_end..transpose_end, ch.to_string()));
6108 }
6109 }
6110 });
6111 edits
6112 });
6113 this.buffer
6114 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6115 let selections = this.selections.all::<usize>(cx);
6116 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6117 s.select(selections);
6118 });
6119 });
6120 }
6121
6122 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6123 let mut text = String::new();
6124 let buffer = self.buffer.read(cx).snapshot(cx);
6125 let mut selections = self.selections.all::<Point>(cx);
6126 let mut clipboard_selections = Vec::with_capacity(selections.len());
6127 {
6128 let max_point = buffer.max_point();
6129 let mut is_first = true;
6130 for selection in &mut selections {
6131 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6132 if is_entire_line {
6133 selection.start = Point::new(selection.start.row, 0);
6134 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6135 selection.goal = SelectionGoal::None;
6136 }
6137 if is_first {
6138 is_first = false;
6139 } else {
6140 text += "\n";
6141 }
6142 let mut len = 0;
6143 for chunk in buffer.text_for_range(selection.start..selection.end) {
6144 text.push_str(chunk);
6145 len += chunk.len();
6146 }
6147 clipboard_selections.push(ClipboardSelection {
6148 len,
6149 is_entire_line,
6150 first_line_indent: buffer
6151 .indent_size_for_line(MultiBufferRow(selection.start.row))
6152 .len,
6153 });
6154 }
6155 }
6156
6157 self.transact(cx, |this, cx| {
6158 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6159 s.select(selections);
6160 });
6161 this.insert("", cx);
6162 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6163 });
6164 }
6165
6166 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6167 let selections = self.selections.all::<Point>(cx);
6168 let buffer = self.buffer.read(cx).read(cx);
6169 let mut text = String::new();
6170
6171 let mut clipboard_selections = Vec::with_capacity(selections.len());
6172 {
6173 let max_point = buffer.max_point();
6174 let mut is_first = true;
6175 for selection in selections.iter() {
6176 let mut start = selection.start;
6177 let mut end = selection.end;
6178 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6179 if is_entire_line {
6180 start = Point::new(start.row, 0);
6181 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6182 }
6183 if is_first {
6184 is_first = false;
6185 } else {
6186 text += "\n";
6187 }
6188 let mut len = 0;
6189 for chunk in buffer.text_for_range(start..end) {
6190 text.push_str(chunk);
6191 len += chunk.len();
6192 }
6193 clipboard_selections.push(ClipboardSelection {
6194 len,
6195 is_entire_line,
6196 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6197 });
6198 }
6199 }
6200
6201 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6202 }
6203
6204 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6205 if self.read_only(cx) {
6206 return;
6207 }
6208
6209 self.transact(cx, |this, cx| {
6210 if let Some(item) = cx.read_from_clipboard() {
6211 let clipboard_text = Cow::Borrowed(item.text());
6212 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6213 let old_selections = this.selections.all::<usize>(cx);
6214 let all_selections_were_entire_line =
6215 clipboard_selections.iter().all(|s| s.is_entire_line);
6216 let first_selection_indent_column =
6217 clipboard_selections.first().map(|s| s.first_line_indent);
6218 if clipboard_selections.len() != old_selections.len() {
6219 clipboard_selections.drain(..);
6220 }
6221
6222 this.buffer.update(cx, |buffer, cx| {
6223 let snapshot = buffer.read(cx);
6224 let mut start_offset = 0;
6225 let mut edits = Vec::new();
6226 let mut original_indent_columns = Vec::new();
6227 let line_mode = this.selections.line_mode;
6228 for (ix, selection) in old_selections.iter().enumerate() {
6229 let to_insert;
6230 let entire_line;
6231 let original_indent_column;
6232 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6233 let end_offset = start_offset + clipboard_selection.len;
6234 to_insert = &clipboard_text[start_offset..end_offset];
6235 entire_line = clipboard_selection.is_entire_line;
6236 start_offset = end_offset + 1;
6237 original_indent_column =
6238 Some(clipboard_selection.first_line_indent);
6239 } else {
6240 to_insert = clipboard_text.as_str();
6241 entire_line = all_selections_were_entire_line;
6242 original_indent_column = first_selection_indent_column
6243 }
6244
6245 // If the corresponding selection was empty when this slice of the
6246 // clipboard text was written, then the entire line containing the
6247 // selection was copied. If this selection is also currently empty,
6248 // then paste the line before the current line of the buffer.
6249 let range = if selection.is_empty() && !line_mode && entire_line {
6250 let column = selection.start.to_point(&snapshot).column as usize;
6251 let line_start = selection.start - column;
6252 line_start..line_start
6253 } else {
6254 selection.range()
6255 };
6256
6257 edits.push((range, to_insert));
6258 original_indent_columns.extend(original_indent_column);
6259 }
6260 drop(snapshot);
6261
6262 buffer.edit(
6263 edits,
6264 Some(AutoindentMode::Block {
6265 original_indent_columns,
6266 }),
6267 cx,
6268 );
6269 });
6270
6271 let selections = this.selections.all::<usize>(cx);
6272 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6273 } else {
6274 this.insert(&clipboard_text, cx);
6275 }
6276 }
6277 });
6278 }
6279
6280 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6281 if self.read_only(cx) {
6282 return;
6283 }
6284
6285 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6286 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6287 self.change_selections(None, cx, |s| {
6288 s.select_anchors(selections.to_vec());
6289 });
6290 }
6291 self.request_autoscroll(Autoscroll::fit(), cx);
6292 self.unmark_text(cx);
6293 self.refresh_inline_completion(true, cx);
6294 cx.emit(EditorEvent::Edited);
6295 cx.emit(EditorEvent::TransactionUndone {
6296 transaction_id: tx_id,
6297 });
6298 }
6299 }
6300
6301 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6302 if self.read_only(cx) {
6303 return;
6304 }
6305
6306 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6307 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6308 {
6309 self.change_selections(None, cx, |s| {
6310 s.select_anchors(selections.to_vec());
6311 });
6312 }
6313 self.request_autoscroll(Autoscroll::fit(), cx);
6314 self.unmark_text(cx);
6315 self.refresh_inline_completion(true, cx);
6316 cx.emit(EditorEvent::Edited);
6317 }
6318 }
6319
6320 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6321 self.buffer
6322 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6323 }
6324
6325 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6326 self.buffer
6327 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6328 }
6329
6330 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6331 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6332 let line_mode = s.line_mode;
6333 s.move_with(|map, selection| {
6334 let cursor = if selection.is_empty() && !line_mode {
6335 movement::left(map, selection.start)
6336 } else {
6337 selection.start
6338 };
6339 selection.collapse_to(cursor, SelectionGoal::None);
6340 });
6341 })
6342 }
6343
6344 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6345 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6346 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6347 })
6348 }
6349
6350 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6352 let line_mode = s.line_mode;
6353 s.move_with(|map, selection| {
6354 let cursor = if selection.is_empty() && !line_mode {
6355 movement::right(map, selection.end)
6356 } else {
6357 selection.end
6358 };
6359 selection.collapse_to(cursor, SelectionGoal::None)
6360 });
6361 })
6362 }
6363
6364 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6365 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6366 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6367 })
6368 }
6369
6370 pub fn move_up(&mut self, _: &MoveUp, 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(
6389 map,
6390 selection.start,
6391 selection.goal,
6392 false,
6393 &text_layout_details,
6394 );
6395 selection.collapse_to(cursor, goal);
6396 });
6397 })
6398 }
6399
6400 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6401 if self.take_rename(true, cx).is_some() {
6402 return;
6403 }
6404
6405 if matches!(self.mode, EditorMode::SingleLine) {
6406 cx.propagate();
6407 return;
6408 }
6409
6410 let text_layout_details = &self.text_layout_details(cx);
6411
6412 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6413 let line_mode = s.line_mode;
6414 s.move_with(|map, selection| {
6415 if !selection.is_empty() && !line_mode {
6416 selection.goal = SelectionGoal::None;
6417 }
6418 let (cursor, goal) = movement::up_by_rows(
6419 map,
6420 selection.start,
6421 action.lines,
6422 selection.goal,
6423 false,
6424 &text_layout_details,
6425 );
6426 selection.collapse_to(cursor, goal);
6427 });
6428 })
6429 }
6430
6431 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6432 if self.take_rename(true, cx).is_some() {
6433 return;
6434 }
6435
6436 if matches!(self.mode, EditorMode::SingleLine) {
6437 cx.propagate();
6438 return;
6439 }
6440
6441 let text_layout_details = &self.text_layout_details(cx);
6442
6443 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6444 let line_mode = s.line_mode;
6445 s.move_with(|map, selection| {
6446 if !selection.is_empty() && !line_mode {
6447 selection.goal = SelectionGoal::None;
6448 }
6449 let (cursor, goal) = movement::down_by_rows(
6450 map,
6451 selection.start,
6452 action.lines,
6453 selection.goal,
6454 false,
6455 &text_layout_details,
6456 );
6457 selection.collapse_to(cursor, goal);
6458 });
6459 })
6460 }
6461
6462 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6463 let text_layout_details = &self.text_layout_details(cx);
6464 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6465 s.move_heads_with(|map, head, goal| {
6466 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6467 })
6468 })
6469 }
6470
6471 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6472 let text_layout_details = &self.text_layout_details(cx);
6473 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6474 s.move_heads_with(|map, head, goal| {
6475 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6476 })
6477 })
6478 }
6479
6480 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6481 if self.take_rename(true, cx).is_some() {
6482 return;
6483 }
6484
6485 if matches!(self.mode, EditorMode::SingleLine) {
6486 cx.propagate();
6487 return;
6488 }
6489
6490 let row_count = if let Some(row_count) = self.visible_line_count() {
6491 row_count as u32 - 1
6492 } else {
6493 return;
6494 };
6495
6496 let autoscroll = if action.center_cursor {
6497 Autoscroll::center()
6498 } else {
6499 Autoscroll::fit()
6500 };
6501
6502 let text_layout_details = &self.text_layout_details(cx);
6503
6504 self.change_selections(Some(autoscroll), cx, |s| {
6505 let line_mode = s.line_mode;
6506 s.move_with(|map, selection| {
6507 if !selection.is_empty() && !line_mode {
6508 selection.goal = SelectionGoal::None;
6509 }
6510 let (cursor, goal) = movement::up_by_rows(
6511 map,
6512 selection.end,
6513 row_count,
6514 selection.goal,
6515 false,
6516 &text_layout_details,
6517 );
6518 selection.collapse_to(cursor, goal);
6519 });
6520 });
6521 }
6522
6523 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6524 let text_layout_details = &self.text_layout_details(cx);
6525 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6526 s.move_heads_with(|map, head, goal| {
6527 movement::up(map, head, goal, false, &text_layout_details)
6528 })
6529 })
6530 }
6531
6532 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6533 self.take_rename(true, cx);
6534
6535 if self.mode == EditorMode::SingleLine {
6536 cx.propagate();
6537 return;
6538 }
6539
6540 let text_layout_details = &self.text_layout_details(cx);
6541 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6542 let line_mode = s.line_mode;
6543 s.move_with(|map, selection| {
6544 if !selection.is_empty() && !line_mode {
6545 selection.goal = SelectionGoal::None;
6546 }
6547 let (cursor, goal) = movement::down(
6548 map,
6549 selection.end,
6550 selection.goal,
6551 false,
6552 &text_layout_details,
6553 );
6554 selection.collapse_to(cursor, goal);
6555 });
6556 });
6557 }
6558
6559 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6560 if self.take_rename(true, cx).is_some() {
6561 return;
6562 }
6563
6564 if self
6565 .context_menu
6566 .write()
6567 .as_mut()
6568 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6569 .unwrap_or(false)
6570 {
6571 return;
6572 }
6573
6574 if matches!(self.mode, EditorMode::SingleLine) {
6575 cx.propagate();
6576 return;
6577 }
6578
6579 let row_count = if let Some(row_count) = self.visible_line_count() {
6580 row_count as u32 - 1
6581 } else {
6582 return;
6583 };
6584
6585 let autoscroll = if action.center_cursor {
6586 Autoscroll::center()
6587 } else {
6588 Autoscroll::fit()
6589 };
6590
6591 let text_layout_details = &self.text_layout_details(cx);
6592 self.change_selections(Some(autoscroll), cx, |s| {
6593 let line_mode = s.line_mode;
6594 s.move_with(|map, selection| {
6595 if !selection.is_empty() && !line_mode {
6596 selection.goal = SelectionGoal::None;
6597 }
6598 let (cursor, goal) = movement::down_by_rows(
6599 map,
6600 selection.end,
6601 row_count,
6602 selection.goal,
6603 false,
6604 &text_layout_details,
6605 );
6606 selection.collapse_to(cursor, goal);
6607 });
6608 });
6609 }
6610
6611 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6612 let text_layout_details = &self.text_layout_details(cx);
6613 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6614 s.move_heads_with(|map, head, goal| {
6615 movement::down(map, head, goal, false, &text_layout_details)
6616 })
6617 });
6618 }
6619
6620 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6621 if let Some(context_menu) = self.context_menu.write().as_mut() {
6622 context_menu.select_first(self.project.as_ref(), cx);
6623 }
6624 }
6625
6626 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6627 if let Some(context_menu) = self.context_menu.write().as_mut() {
6628 context_menu.select_prev(self.project.as_ref(), cx);
6629 }
6630 }
6631
6632 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6633 if let Some(context_menu) = self.context_menu.write().as_mut() {
6634 context_menu.select_next(self.project.as_ref(), cx);
6635 }
6636 }
6637
6638 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6639 if let Some(context_menu) = self.context_menu.write().as_mut() {
6640 context_menu.select_last(self.project.as_ref(), cx);
6641 }
6642 }
6643
6644 pub fn move_to_previous_word_start(
6645 &mut self,
6646 _: &MoveToPreviousWordStart,
6647 cx: &mut ViewContext<Self>,
6648 ) {
6649 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6650 s.move_cursors_with(|map, head, _| {
6651 (
6652 movement::previous_word_start(map, head),
6653 SelectionGoal::None,
6654 )
6655 });
6656 })
6657 }
6658
6659 pub fn move_to_previous_subword_start(
6660 &mut self,
6661 _: &MoveToPreviousSubwordStart,
6662 cx: &mut ViewContext<Self>,
6663 ) {
6664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6665 s.move_cursors_with(|map, head, _| {
6666 (
6667 movement::previous_subword_start(map, head),
6668 SelectionGoal::None,
6669 )
6670 });
6671 })
6672 }
6673
6674 pub fn select_to_previous_word_start(
6675 &mut self,
6676 _: &SelectToPreviousWordStart,
6677 cx: &mut ViewContext<Self>,
6678 ) {
6679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6680 s.move_heads_with(|map, head, _| {
6681 (
6682 movement::previous_word_start(map, head),
6683 SelectionGoal::None,
6684 )
6685 });
6686 })
6687 }
6688
6689 pub fn select_to_previous_subword_start(
6690 &mut self,
6691 _: &SelectToPreviousSubwordStart,
6692 cx: &mut ViewContext<Self>,
6693 ) {
6694 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6695 s.move_heads_with(|map, head, _| {
6696 (
6697 movement::previous_subword_start(map, head),
6698 SelectionGoal::None,
6699 )
6700 });
6701 })
6702 }
6703
6704 pub fn delete_to_previous_word_start(
6705 &mut self,
6706 _: &DeleteToPreviousWordStart,
6707 cx: &mut ViewContext<Self>,
6708 ) {
6709 self.transact(cx, |this, cx| {
6710 this.select_autoclose_pair(cx);
6711 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6712 let line_mode = s.line_mode;
6713 s.move_with(|map, selection| {
6714 if selection.is_empty() && !line_mode {
6715 let cursor = movement::previous_word_start(map, selection.head());
6716 selection.set_head(cursor, SelectionGoal::None);
6717 }
6718 });
6719 });
6720 this.insert("", cx);
6721 });
6722 }
6723
6724 pub fn delete_to_previous_subword_start(
6725 &mut self,
6726 _: &DeleteToPreviousSubwordStart,
6727 cx: &mut ViewContext<Self>,
6728 ) {
6729 self.transact(cx, |this, cx| {
6730 this.select_autoclose_pair(cx);
6731 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6732 let line_mode = s.line_mode;
6733 s.move_with(|map, selection| {
6734 if selection.is_empty() && !line_mode {
6735 let cursor = movement::previous_subword_start(map, selection.head());
6736 selection.set_head(cursor, SelectionGoal::None);
6737 }
6738 });
6739 });
6740 this.insert("", cx);
6741 });
6742 }
6743
6744 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6745 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6746 s.move_cursors_with(|map, head, _| {
6747 (movement::next_word_end(map, head), SelectionGoal::None)
6748 });
6749 })
6750 }
6751
6752 pub fn move_to_next_subword_end(
6753 &mut self,
6754 _: &MoveToNextSubwordEnd,
6755 cx: &mut ViewContext<Self>,
6756 ) {
6757 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6758 s.move_cursors_with(|map, head, _| {
6759 (movement::next_subword_end(map, head), SelectionGoal::None)
6760 });
6761 })
6762 }
6763
6764 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6765 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6766 s.move_heads_with(|map, head, _| {
6767 (movement::next_word_end(map, head), SelectionGoal::None)
6768 });
6769 })
6770 }
6771
6772 pub fn select_to_next_subword_end(
6773 &mut self,
6774 _: &SelectToNextSubwordEnd,
6775 cx: &mut ViewContext<Self>,
6776 ) {
6777 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6778 s.move_heads_with(|map, head, _| {
6779 (movement::next_subword_end(map, head), SelectionGoal::None)
6780 });
6781 })
6782 }
6783
6784 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6785 self.transact(cx, |this, cx| {
6786 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6787 let line_mode = s.line_mode;
6788 s.move_with(|map, selection| {
6789 if selection.is_empty() && !line_mode {
6790 let cursor = movement::next_word_end(map, selection.head());
6791 selection.set_head(cursor, SelectionGoal::None);
6792 }
6793 });
6794 });
6795 this.insert("", cx);
6796 });
6797 }
6798
6799 pub fn delete_to_next_subword_end(
6800 &mut self,
6801 _: &DeleteToNextSubwordEnd,
6802 cx: &mut ViewContext<Self>,
6803 ) {
6804 self.transact(cx, |this, cx| {
6805 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6806 s.move_with(|map, selection| {
6807 if selection.is_empty() {
6808 let cursor = movement::next_subword_end(map, selection.head());
6809 selection.set_head(cursor, SelectionGoal::None);
6810 }
6811 });
6812 });
6813 this.insert("", cx);
6814 });
6815 }
6816
6817 pub fn move_to_beginning_of_line(
6818 &mut self,
6819 action: &MoveToBeginningOfLine,
6820 cx: &mut ViewContext<Self>,
6821 ) {
6822 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6823 s.move_cursors_with(|map, head, _| {
6824 (
6825 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6826 SelectionGoal::None,
6827 )
6828 });
6829 })
6830 }
6831
6832 pub fn select_to_beginning_of_line(
6833 &mut self,
6834 action: &SelectToBeginningOfLine,
6835 cx: &mut ViewContext<Self>,
6836 ) {
6837 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6838 s.move_heads_with(|map, head, _| {
6839 (
6840 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6841 SelectionGoal::None,
6842 )
6843 });
6844 });
6845 }
6846
6847 pub fn delete_to_beginning_of_line(
6848 &mut self,
6849 _: &DeleteToBeginningOfLine,
6850 cx: &mut ViewContext<Self>,
6851 ) {
6852 self.transact(cx, |this, cx| {
6853 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6854 s.move_with(|_, selection| {
6855 selection.reversed = true;
6856 });
6857 });
6858
6859 this.select_to_beginning_of_line(
6860 &SelectToBeginningOfLine {
6861 stop_at_soft_wraps: false,
6862 },
6863 cx,
6864 );
6865 this.backspace(&Backspace, cx);
6866 });
6867 }
6868
6869 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6870 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6871 s.move_cursors_with(|map, head, _| {
6872 (
6873 movement::line_end(map, head, action.stop_at_soft_wraps),
6874 SelectionGoal::None,
6875 )
6876 });
6877 })
6878 }
6879
6880 pub fn select_to_end_of_line(
6881 &mut self,
6882 action: &SelectToEndOfLine,
6883 cx: &mut ViewContext<Self>,
6884 ) {
6885 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6886 s.move_heads_with(|map, head, _| {
6887 (
6888 movement::line_end(map, head, action.stop_at_soft_wraps),
6889 SelectionGoal::None,
6890 )
6891 });
6892 })
6893 }
6894
6895 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6896 self.transact(cx, |this, cx| {
6897 this.select_to_end_of_line(
6898 &SelectToEndOfLine {
6899 stop_at_soft_wraps: false,
6900 },
6901 cx,
6902 );
6903 this.delete(&Delete, cx);
6904 });
6905 }
6906
6907 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6908 self.transact(cx, |this, cx| {
6909 this.select_to_end_of_line(
6910 &SelectToEndOfLine {
6911 stop_at_soft_wraps: false,
6912 },
6913 cx,
6914 );
6915 this.cut(&Cut, cx);
6916 });
6917 }
6918
6919 pub fn move_to_start_of_paragraph(
6920 &mut self,
6921 _: &MoveToStartOfParagraph,
6922 cx: &mut ViewContext<Self>,
6923 ) {
6924 if matches!(self.mode, EditorMode::SingleLine) {
6925 cx.propagate();
6926 return;
6927 }
6928
6929 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6930 s.move_with(|map, selection| {
6931 selection.collapse_to(
6932 movement::start_of_paragraph(map, selection.head(), 1),
6933 SelectionGoal::None,
6934 )
6935 });
6936 })
6937 }
6938
6939 pub fn move_to_end_of_paragraph(
6940 &mut self,
6941 _: &MoveToEndOfParagraph,
6942 cx: &mut ViewContext<Self>,
6943 ) {
6944 if matches!(self.mode, EditorMode::SingleLine) {
6945 cx.propagate();
6946 return;
6947 }
6948
6949 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6950 s.move_with(|map, selection| {
6951 selection.collapse_to(
6952 movement::end_of_paragraph(map, selection.head(), 1),
6953 SelectionGoal::None,
6954 )
6955 });
6956 })
6957 }
6958
6959 pub fn select_to_start_of_paragraph(
6960 &mut self,
6961 _: &SelectToStartOfParagraph,
6962 cx: &mut ViewContext<Self>,
6963 ) {
6964 if matches!(self.mode, EditorMode::SingleLine) {
6965 cx.propagate();
6966 return;
6967 }
6968
6969 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6970 s.move_heads_with(|map, head, _| {
6971 (
6972 movement::start_of_paragraph(map, head, 1),
6973 SelectionGoal::None,
6974 )
6975 });
6976 })
6977 }
6978
6979 pub fn select_to_end_of_paragraph(
6980 &mut self,
6981 _: &SelectToEndOfParagraph,
6982 cx: &mut ViewContext<Self>,
6983 ) {
6984 if matches!(self.mode, EditorMode::SingleLine) {
6985 cx.propagate();
6986 return;
6987 }
6988
6989 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6990 s.move_heads_with(|map, head, _| {
6991 (
6992 movement::end_of_paragraph(map, head, 1),
6993 SelectionGoal::None,
6994 )
6995 });
6996 })
6997 }
6998
6999 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7000 if matches!(self.mode, EditorMode::SingleLine) {
7001 cx.propagate();
7002 return;
7003 }
7004
7005 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7006 s.select_ranges(vec![0..0]);
7007 });
7008 }
7009
7010 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7011 let mut selection = self.selections.last::<Point>(cx);
7012 selection.set_head(Point::zero(), SelectionGoal::None);
7013
7014 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7015 s.select(vec![selection]);
7016 });
7017 }
7018
7019 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7020 if matches!(self.mode, EditorMode::SingleLine) {
7021 cx.propagate();
7022 return;
7023 }
7024
7025 let cursor = self.buffer.read(cx).read(cx).len();
7026 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7027 s.select_ranges(vec![cursor..cursor])
7028 });
7029 }
7030
7031 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7032 self.nav_history = nav_history;
7033 }
7034
7035 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7036 self.nav_history.as_ref()
7037 }
7038
7039 fn push_to_nav_history(
7040 &mut self,
7041 cursor_anchor: Anchor,
7042 new_position: Option<Point>,
7043 cx: &mut ViewContext<Self>,
7044 ) {
7045 if let Some(nav_history) = self.nav_history.as_mut() {
7046 let buffer = self.buffer.read(cx).read(cx);
7047 let cursor_position = cursor_anchor.to_point(&buffer);
7048 let scroll_state = self.scroll_manager.anchor();
7049 let scroll_top_row = scroll_state.top_row(&buffer);
7050 drop(buffer);
7051
7052 if let Some(new_position) = new_position {
7053 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7054 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7055 return;
7056 }
7057 }
7058
7059 nav_history.push(
7060 Some(NavigationData {
7061 cursor_anchor,
7062 cursor_position,
7063 scroll_anchor: scroll_state,
7064 scroll_top_row,
7065 }),
7066 cx,
7067 );
7068 }
7069 }
7070
7071 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7072 let buffer = self.buffer.read(cx).snapshot(cx);
7073 let mut selection = self.selections.first::<usize>(cx);
7074 selection.set_head(buffer.len(), SelectionGoal::None);
7075 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7076 s.select(vec![selection]);
7077 });
7078 }
7079
7080 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7081 let end = self.buffer.read(cx).read(cx).len();
7082 self.change_selections(None, cx, |s| {
7083 s.select_ranges(vec![0..end]);
7084 });
7085 }
7086
7087 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7088 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7089 let mut selections = self.selections.all::<Point>(cx);
7090 let max_point = display_map.buffer_snapshot.max_point();
7091 for selection in &mut selections {
7092 let rows = selection.spanned_rows(true, &display_map);
7093 selection.start = Point::new(rows.start.0, 0);
7094 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7095 selection.reversed = false;
7096 }
7097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7098 s.select(selections);
7099 });
7100 }
7101
7102 pub fn split_selection_into_lines(
7103 &mut self,
7104 _: &SplitSelectionIntoLines,
7105 cx: &mut ViewContext<Self>,
7106 ) {
7107 let mut to_unfold = Vec::new();
7108 let mut new_selection_ranges = Vec::new();
7109 {
7110 let selections = self.selections.all::<Point>(cx);
7111 let buffer = self.buffer.read(cx).read(cx);
7112 for selection in selections {
7113 for row in selection.start.row..selection.end.row {
7114 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7115 new_selection_ranges.push(cursor..cursor);
7116 }
7117 new_selection_ranges.push(selection.end..selection.end);
7118 to_unfold.push(selection.start..selection.end);
7119 }
7120 }
7121 self.unfold_ranges(to_unfold, true, true, cx);
7122 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7123 s.select_ranges(new_selection_ranges);
7124 });
7125 }
7126
7127 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7128 self.add_selection(true, cx);
7129 }
7130
7131 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7132 self.add_selection(false, cx);
7133 }
7134
7135 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7136 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7137 let mut selections = self.selections.all::<Point>(cx);
7138 let text_layout_details = self.text_layout_details(cx);
7139 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7140 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7141 let range = oldest_selection.display_range(&display_map).sorted();
7142
7143 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7144 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7145 let positions = start_x.min(end_x)..start_x.max(end_x);
7146
7147 selections.clear();
7148 let mut stack = Vec::new();
7149 for row in range.start.row().0..=range.end.row().0 {
7150 if let Some(selection) = self.selections.build_columnar_selection(
7151 &display_map,
7152 DisplayRow(row),
7153 &positions,
7154 oldest_selection.reversed,
7155 &text_layout_details,
7156 ) {
7157 stack.push(selection.id);
7158 selections.push(selection);
7159 }
7160 }
7161
7162 if above {
7163 stack.reverse();
7164 }
7165
7166 AddSelectionsState { above, stack }
7167 });
7168
7169 let last_added_selection = *state.stack.last().unwrap();
7170 let mut new_selections = Vec::new();
7171 if above == state.above {
7172 let end_row = if above {
7173 DisplayRow(0)
7174 } else {
7175 display_map.max_point().row()
7176 };
7177
7178 'outer: for selection in selections {
7179 if selection.id == last_added_selection {
7180 let range = selection.display_range(&display_map).sorted();
7181 debug_assert_eq!(range.start.row(), range.end.row());
7182 let mut row = range.start.row();
7183 let positions =
7184 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7185 px(start)..px(end)
7186 } else {
7187 let start_x =
7188 display_map.x_for_display_point(range.start, &text_layout_details);
7189 let end_x =
7190 display_map.x_for_display_point(range.end, &text_layout_details);
7191 start_x.min(end_x)..start_x.max(end_x)
7192 };
7193
7194 while row != end_row {
7195 if above {
7196 row.0 -= 1;
7197 } else {
7198 row.0 += 1;
7199 }
7200
7201 if let Some(new_selection) = self.selections.build_columnar_selection(
7202 &display_map,
7203 row,
7204 &positions,
7205 selection.reversed,
7206 &text_layout_details,
7207 ) {
7208 state.stack.push(new_selection.id);
7209 if above {
7210 new_selections.push(new_selection);
7211 new_selections.push(selection);
7212 } else {
7213 new_selections.push(selection);
7214 new_selections.push(new_selection);
7215 }
7216
7217 continue 'outer;
7218 }
7219 }
7220 }
7221
7222 new_selections.push(selection);
7223 }
7224 } else {
7225 new_selections = selections;
7226 new_selections.retain(|s| s.id != last_added_selection);
7227 state.stack.pop();
7228 }
7229
7230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7231 s.select(new_selections);
7232 });
7233 if state.stack.len() > 1 {
7234 self.add_selections_state = Some(state);
7235 }
7236 }
7237
7238 pub fn select_next_match_internal(
7239 &mut self,
7240 display_map: &DisplaySnapshot,
7241 replace_newest: bool,
7242 autoscroll: Option<Autoscroll>,
7243 cx: &mut ViewContext<Self>,
7244 ) -> Result<()> {
7245 fn select_next_match_ranges(
7246 this: &mut Editor,
7247 range: Range<usize>,
7248 replace_newest: bool,
7249 auto_scroll: Option<Autoscroll>,
7250 cx: &mut ViewContext<Editor>,
7251 ) {
7252 this.unfold_ranges([range.clone()], false, true, cx);
7253 this.change_selections(auto_scroll, cx, |s| {
7254 if replace_newest {
7255 s.delete(s.newest_anchor().id);
7256 }
7257 s.insert_range(range.clone());
7258 });
7259 }
7260
7261 let buffer = &display_map.buffer_snapshot;
7262 let mut selections = self.selections.all::<usize>(cx);
7263 if let Some(mut select_next_state) = self.select_next_state.take() {
7264 let query = &select_next_state.query;
7265 if !select_next_state.done {
7266 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7267 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7268 let mut next_selected_range = None;
7269
7270 let bytes_after_last_selection =
7271 buffer.bytes_in_range(last_selection.end..buffer.len());
7272 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7273 let query_matches = query
7274 .stream_find_iter(bytes_after_last_selection)
7275 .map(|result| (last_selection.end, result))
7276 .chain(
7277 query
7278 .stream_find_iter(bytes_before_first_selection)
7279 .map(|result| (0, result)),
7280 );
7281
7282 for (start_offset, query_match) in query_matches {
7283 let query_match = query_match.unwrap(); // can only fail due to I/O
7284 let offset_range =
7285 start_offset + query_match.start()..start_offset + query_match.end();
7286 let display_range = offset_range.start.to_display_point(&display_map)
7287 ..offset_range.end.to_display_point(&display_map);
7288
7289 if !select_next_state.wordwise
7290 || (!movement::is_inside_word(&display_map, display_range.start)
7291 && !movement::is_inside_word(&display_map, display_range.end))
7292 {
7293 // TODO: This is n^2, because we might check all the selections
7294 if !selections
7295 .iter()
7296 .any(|selection| selection.range().overlaps(&offset_range))
7297 {
7298 next_selected_range = Some(offset_range);
7299 break;
7300 }
7301 }
7302 }
7303
7304 if let Some(next_selected_range) = next_selected_range {
7305 select_next_match_ranges(
7306 self,
7307 next_selected_range,
7308 replace_newest,
7309 autoscroll,
7310 cx,
7311 );
7312 } else {
7313 select_next_state.done = true;
7314 }
7315 }
7316
7317 self.select_next_state = Some(select_next_state);
7318 } else {
7319 let mut only_carets = true;
7320 let mut same_text_selected = true;
7321 let mut selected_text = None;
7322
7323 let mut selections_iter = selections.iter().peekable();
7324 while let Some(selection) = selections_iter.next() {
7325 if selection.start != selection.end {
7326 only_carets = false;
7327 }
7328
7329 if same_text_selected {
7330 if selected_text.is_none() {
7331 selected_text =
7332 Some(buffer.text_for_range(selection.range()).collect::<String>());
7333 }
7334
7335 if let Some(next_selection) = selections_iter.peek() {
7336 if next_selection.range().len() == selection.range().len() {
7337 let next_selected_text = buffer
7338 .text_for_range(next_selection.range())
7339 .collect::<String>();
7340 if Some(next_selected_text) != selected_text {
7341 same_text_selected = false;
7342 selected_text = None;
7343 }
7344 } else {
7345 same_text_selected = false;
7346 selected_text = None;
7347 }
7348 }
7349 }
7350 }
7351
7352 if only_carets {
7353 for selection in &mut selections {
7354 let word_range = movement::surrounding_word(
7355 &display_map,
7356 selection.start.to_display_point(&display_map),
7357 );
7358 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7359 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7360 selection.goal = SelectionGoal::None;
7361 selection.reversed = false;
7362 select_next_match_ranges(
7363 self,
7364 selection.start..selection.end,
7365 replace_newest,
7366 autoscroll,
7367 cx,
7368 );
7369 }
7370
7371 if selections.len() == 1 {
7372 let selection = selections
7373 .last()
7374 .expect("ensured that there's only one selection");
7375 let query = buffer
7376 .text_for_range(selection.start..selection.end)
7377 .collect::<String>();
7378 let is_empty = query.is_empty();
7379 let select_state = SelectNextState {
7380 query: AhoCorasick::new(&[query])?,
7381 wordwise: true,
7382 done: is_empty,
7383 };
7384 self.select_next_state = Some(select_state);
7385 } else {
7386 self.select_next_state = None;
7387 }
7388 } else if let Some(selected_text) = selected_text {
7389 self.select_next_state = Some(SelectNextState {
7390 query: AhoCorasick::new(&[selected_text])?,
7391 wordwise: false,
7392 done: false,
7393 });
7394 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7395 }
7396 }
7397 Ok(())
7398 }
7399
7400 pub fn select_all_matches(
7401 &mut self,
7402 _action: &SelectAllMatches,
7403 cx: &mut ViewContext<Self>,
7404 ) -> Result<()> {
7405 self.push_to_selection_history();
7406 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7407
7408 self.select_next_match_internal(&display_map, false, None, cx)?;
7409 let Some(select_next_state) = self.select_next_state.as_mut() else {
7410 return Ok(());
7411 };
7412 if select_next_state.done {
7413 return Ok(());
7414 }
7415
7416 let mut new_selections = self.selections.all::<usize>(cx);
7417
7418 let buffer = &display_map.buffer_snapshot;
7419 let query_matches = select_next_state
7420 .query
7421 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7422
7423 for query_match in query_matches {
7424 let query_match = query_match.unwrap(); // can only fail due to I/O
7425 let offset_range = query_match.start()..query_match.end();
7426 let display_range = offset_range.start.to_display_point(&display_map)
7427 ..offset_range.end.to_display_point(&display_map);
7428
7429 if !select_next_state.wordwise
7430 || (!movement::is_inside_word(&display_map, display_range.start)
7431 && !movement::is_inside_word(&display_map, display_range.end))
7432 {
7433 self.selections.change_with(cx, |selections| {
7434 new_selections.push(Selection {
7435 id: selections.new_selection_id(),
7436 start: offset_range.start,
7437 end: offset_range.end,
7438 reversed: false,
7439 goal: SelectionGoal::None,
7440 });
7441 });
7442 }
7443 }
7444
7445 new_selections.sort_by_key(|selection| selection.start);
7446 let mut ix = 0;
7447 while ix + 1 < new_selections.len() {
7448 let current_selection = &new_selections[ix];
7449 let next_selection = &new_selections[ix + 1];
7450 if current_selection.range().overlaps(&next_selection.range()) {
7451 if current_selection.id < next_selection.id {
7452 new_selections.remove(ix + 1);
7453 } else {
7454 new_selections.remove(ix);
7455 }
7456 } else {
7457 ix += 1;
7458 }
7459 }
7460
7461 select_next_state.done = true;
7462 self.unfold_ranges(
7463 new_selections.iter().map(|selection| selection.range()),
7464 false,
7465 false,
7466 cx,
7467 );
7468 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7469 selections.select(new_selections)
7470 });
7471
7472 Ok(())
7473 }
7474
7475 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7476 self.push_to_selection_history();
7477 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7478 self.select_next_match_internal(
7479 &display_map,
7480 action.replace_newest,
7481 Some(Autoscroll::newest()),
7482 cx,
7483 )?;
7484 Ok(())
7485 }
7486
7487 pub fn select_previous(
7488 &mut self,
7489 action: &SelectPrevious,
7490 cx: &mut ViewContext<Self>,
7491 ) -> Result<()> {
7492 self.push_to_selection_history();
7493 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7494 let buffer = &display_map.buffer_snapshot;
7495 let mut selections = self.selections.all::<usize>(cx);
7496 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7497 let query = &select_prev_state.query;
7498 if !select_prev_state.done {
7499 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7500 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7501 let mut next_selected_range = None;
7502 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7503 let bytes_before_last_selection =
7504 buffer.reversed_bytes_in_range(0..last_selection.start);
7505 let bytes_after_first_selection =
7506 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7507 let query_matches = query
7508 .stream_find_iter(bytes_before_last_selection)
7509 .map(|result| (last_selection.start, result))
7510 .chain(
7511 query
7512 .stream_find_iter(bytes_after_first_selection)
7513 .map(|result| (buffer.len(), result)),
7514 );
7515 for (end_offset, query_match) in query_matches {
7516 let query_match = query_match.unwrap(); // can only fail due to I/O
7517 let offset_range =
7518 end_offset - query_match.end()..end_offset - query_match.start();
7519 let display_range = offset_range.start.to_display_point(&display_map)
7520 ..offset_range.end.to_display_point(&display_map);
7521
7522 if !select_prev_state.wordwise
7523 || (!movement::is_inside_word(&display_map, display_range.start)
7524 && !movement::is_inside_word(&display_map, display_range.end))
7525 {
7526 next_selected_range = Some(offset_range);
7527 break;
7528 }
7529 }
7530
7531 if let Some(next_selected_range) = next_selected_range {
7532 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7533 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7534 if action.replace_newest {
7535 s.delete(s.newest_anchor().id);
7536 }
7537 s.insert_range(next_selected_range);
7538 });
7539 } else {
7540 select_prev_state.done = true;
7541 }
7542 }
7543
7544 self.select_prev_state = Some(select_prev_state);
7545 } else {
7546 let mut only_carets = true;
7547 let mut same_text_selected = true;
7548 let mut selected_text = None;
7549
7550 let mut selections_iter = selections.iter().peekable();
7551 while let Some(selection) = selections_iter.next() {
7552 if selection.start != selection.end {
7553 only_carets = false;
7554 }
7555
7556 if same_text_selected {
7557 if selected_text.is_none() {
7558 selected_text =
7559 Some(buffer.text_for_range(selection.range()).collect::<String>());
7560 }
7561
7562 if let Some(next_selection) = selections_iter.peek() {
7563 if next_selection.range().len() == selection.range().len() {
7564 let next_selected_text = buffer
7565 .text_for_range(next_selection.range())
7566 .collect::<String>();
7567 if Some(next_selected_text) != selected_text {
7568 same_text_selected = false;
7569 selected_text = None;
7570 }
7571 } else {
7572 same_text_selected = false;
7573 selected_text = None;
7574 }
7575 }
7576 }
7577 }
7578
7579 if only_carets {
7580 for selection in &mut selections {
7581 let word_range = movement::surrounding_word(
7582 &display_map,
7583 selection.start.to_display_point(&display_map),
7584 );
7585 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7586 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7587 selection.goal = SelectionGoal::None;
7588 selection.reversed = false;
7589 }
7590 if selections.len() == 1 {
7591 let selection = selections
7592 .last()
7593 .expect("ensured that there's only one selection");
7594 let query = buffer
7595 .text_for_range(selection.start..selection.end)
7596 .collect::<String>();
7597 let is_empty = query.is_empty();
7598 let select_state = SelectNextState {
7599 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7600 wordwise: true,
7601 done: is_empty,
7602 };
7603 self.select_prev_state = Some(select_state);
7604 } else {
7605 self.select_prev_state = None;
7606 }
7607
7608 self.unfold_ranges(
7609 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7610 false,
7611 true,
7612 cx,
7613 );
7614 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7615 s.select(selections);
7616 });
7617 } else if let Some(selected_text) = selected_text {
7618 self.select_prev_state = Some(SelectNextState {
7619 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7620 wordwise: false,
7621 done: false,
7622 });
7623 self.select_previous(action, cx)?;
7624 }
7625 }
7626 Ok(())
7627 }
7628
7629 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7630 let text_layout_details = &self.text_layout_details(cx);
7631 self.transact(cx, |this, cx| {
7632 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7633 let mut edits = Vec::new();
7634 let mut selection_edit_ranges = Vec::new();
7635 let mut last_toggled_row = None;
7636 let snapshot = this.buffer.read(cx).read(cx);
7637 let empty_str: Arc<str> = "".into();
7638 let mut suffixes_inserted = Vec::new();
7639
7640 fn comment_prefix_range(
7641 snapshot: &MultiBufferSnapshot,
7642 row: MultiBufferRow,
7643 comment_prefix: &str,
7644 comment_prefix_whitespace: &str,
7645 ) -> Range<Point> {
7646 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7647
7648 let mut line_bytes = snapshot
7649 .bytes_in_range(start..snapshot.max_point())
7650 .flatten()
7651 .copied();
7652
7653 // If this line currently begins with the line comment prefix, then record
7654 // the range containing the prefix.
7655 if line_bytes
7656 .by_ref()
7657 .take(comment_prefix.len())
7658 .eq(comment_prefix.bytes())
7659 {
7660 // Include any whitespace that matches the comment prefix.
7661 let matching_whitespace_len = line_bytes
7662 .zip(comment_prefix_whitespace.bytes())
7663 .take_while(|(a, b)| a == b)
7664 .count() as u32;
7665 let end = Point::new(
7666 start.row,
7667 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7668 );
7669 start..end
7670 } else {
7671 start..start
7672 }
7673 }
7674
7675 fn comment_suffix_range(
7676 snapshot: &MultiBufferSnapshot,
7677 row: MultiBufferRow,
7678 comment_suffix: &str,
7679 comment_suffix_has_leading_space: bool,
7680 ) -> Range<Point> {
7681 let end = Point::new(row.0, snapshot.line_len(row));
7682 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7683
7684 let mut line_end_bytes = snapshot
7685 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7686 .flatten()
7687 .copied();
7688
7689 let leading_space_len = if suffix_start_column > 0
7690 && line_end_bytes.next() == Some(b' ')
7691 && comment_suffix_has_leading_space
7692 {
7693 1
7694 } else {
7695 0
7696 };
7697
7698 // If this line currently begins with the line comment prefix, then record
7699 // the range containing the prefix.
7700 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7701 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7702 start..end
7703 } else {
7704 end..end
7705 }
7706 }
7707
7708 // TODO: Handle selections that cross excerpts
7709 for selection in &mut selections {
7710 let start_column = snapshot
7711 .indent_size_for_line(MultiBufferRow(selection.start.row))
7712 .len;
7713 let language = if let Some(language) =
7714 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7715 {
7716 language
7717 } else {
7718 continue;
7719 };
7720
7721 selection_edit_ranges.clear();
7722
7723 // If multiple selections contain a given row, avoid processing that
7724 // row more than once.
7725 let mut start_row = MultiBufferRow(selection.start.row);
7726 if last_toggled_row == Some(start_row) {
7727 start_row = start_row.next_row();
7728 }
7729 let end_row =
7730 if selection.end.row > selection.start.row && selection.end.column == 0 {
7731 MultiBufferRow(selection.end.row - 1)
7732 } else {
7733 MultiBufferRow(selection.end.row)
7734 };
7735 last_toggled_row = Some(end_row);
7736
7737 if start_row > end_row {
7738 continue;
7739 }
7740
7741 // If the language has line comments, toggle those.
7742 let full_comment_prefixes = language.line_comment_prefixes();
7743 if !full_comment_prefixes.is_empty() {
7744 let first_prefix = full_comment_prefixes
7745 .first()
7746 .expect("prefixes is non-empty");
7747 let prefix_trimmed_lengths = full_comment_prefixes
7748 .iter()
7749 .map(|p| p.trim_end_matches(' ').len())
7750 .collect::<SmallVec<[usize; 4]>>();
7751
7752 let mut all_selection_lines_are_comments = true;
7753
7754 for row in start_row.0..=end_row.0 {
7755 let row = MultiBufferRow(row);
7756 if start_row < end_row && snapshot.is_line_blank(row) {
7757 continue;
7758 }
7759
7760 let prefix_range = full_comment_prefixes
7761 .iter()
7762 .zip(prefix_trimmed_lengths.iter().copied())
7763 .map(|(prefix, trimmed_prefix_len)| {
7764 comment_prefix_range(
7765 snapshot.deref(),
7766 row,
7767 &prefix[..trimmed_prefix_len],
7768 &prefix[trimmed_prefix_len..],
7769 )
7770 })
7771 .max_by_key(|range| range.end.column - range.start.column)
7772 .expect("prefixes is non-empty");
7773
7774 if prefix_range.is_empty() {
7775 all_selection_lines_are_comments = false;
7776 }
7777
7778 selection_edit_ranges.push(prefix_range);
7779 }
7780
7781 if all_selection_lines_are_comments {
7782 edits.extend(
7783 selection_edit_ranges
7784 .iter()
7785 .cloned()
7786 .map(|range| (range, empty_str.clone())),
7787 );
7788 } else {
7789 let min_column = selection_edit_ranges
7790 .iter()
7791 .map(|range| range.start.column)
7792 .min()
7793 .unwrap_or(0);
7794 edits.extend(selection_edit_ranges.iter().map(|range| {
7795 let position = Point::new(range.start.row, min_column);
7796 (position..position, first_prefix.clone())
7797 }));
7798 }
7799 } else if let Some((full_comment_prefix, comment_suffix)) =
7800 language.block_comment_delimiters()
7801 {
7802 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7803 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7804 let prefix_range = comment_prefix_range(
7805 snapshot.deref(),
7806 start_row,
7807 comment_prefix,
7808 comment_prefix_whitespace,
7809 );
7810 let suffix_range = comment_suffix_range(
7811 snapshot.deref(),
7812 end_row,
7813 comment_suffix.trim_start_matches(' '),
7814 comment_suffix.starts_with(' '),
7815 );
7816
7817 if prefix_range.is_empty() || suffix_range.is_empty() {
7818 edits.push((
7819 prefix_range.start..prefix_range.start,
7820 full_comment_prefix.clone(),
7821 ));
7822 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7823 suffixes_inserted.push((end_row, comment_suffix.len()));
7824 } else {
7825 edits.push((prefix_range, empty_str.clone()));
7826 edits.push((suffix_range, empty_str.clone()));
7827 }
7828 } else {
7829 continue;
7830 }
7831 }
7832
7833 drop(snapshot);
7834 this.buffer.update(cx, |buffer, cx| {
7835 buffer.edit(edits, None, cx);
7836 });
7837
7838 // Adjust selections so that they end before any comment suffixes that
7839 // were inserted.
7840 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7841 let mut selections = this.selections.all::<Point>(cx);
7842 let snapshot = this.buffer.read(cx).read(cx);
7843 for selection in &mut selections {
7844 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7845 match row.cmp(&MultiBufferRow(selection.end.row)) {
7846 Ordering::Less => {
7847 suffixes_inserted.next();
7848 continue;
7849 }
7850 Ordering::Greater => break,
7851 Ordering::Equal => {
7852 if selection.end.column == snapshot.line_len(row) {
7853 if selection.is_empty() {
7854 selection.start.column -= suffix_len as u32;
7855 }
7856 selection.end.column -= suffix_len as u32;
7857 }
7858 break;
7859 }
7860 }
7861 }
7862 }
7863
7864 drop(snapshot);
7865 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7866
7867 let selections = this.selections.all::<Point>(cx);
7868 let selections_on_single_row = selections.windows(2).all(|selections| {
7869 selections[0].start.row == selections[1].start.row
7870 && selections[0].end.row == selections[1].end.row
7871 && selections[0].start.row == selections[0].end.row
7872 });
7873 let selections_selecting = selections
7874 .iter()
7875 .any(|selection| selection.start != selection.end);
7876 let advance_downwards = action.advance_downwards
7877 && selections_on_single_row
7878 && !selections_selecting
7879 && this.mode != EditorMode::SingleLine;
7880
7881 if advance_downwards {
7882 let snapshot = this.buffer.read(cx).snapshot(cx);
7883
7884 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7885 s.move_cursors_with(|display_snapshot, display_point, _| {
7886 let mut point = display_point.to_point(display_snapshot);
7887 point.row += 1;
7888 point = snapshot.clip_point(point, Bias::Left);
7889 let display_point = point.to_display_point(display_snapshot);
7890 let goal = SelectionGoal::HorizontalPosition(
7891 display_snapshot
7892 .x_for_display_point(display_point, &text_layout_details)
7893 .into(),
7894 );
7895 (display_point, goal)
7896 })
7897 });
7898 }
7899 });
7900 }
7901
7902 pub fn select_larger_syntax_node(
7903 &mut self,
7904 _: &SelectLargerSyntaxNode,
7905 cx: &mut ViewContext<Self>,
7906 ) {
7907 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7908 let buffer = self.buffer.read(cx).snapshot(cx);
7909 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7910
7911 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7912 let mut selected_larger_node = false;
7913 let new_selections = old_selections
7914 .iter()
7915 .map(|selection| {
7916 let old_range = selection.start..selection.end;
7917 let mut new_range = old_range.clone();
7918 while let Some(containing_range) =
7919 buffer.range_for_syntax_ancestor(new_range.clone())
7920 {
7921 new_range = containing_range;
7922 if !display_map.intersects_fold(new_range.start)
7923 && !display_map.intersects_fold(new_range.end)
7924 {
7925 break;
7926 }
7927 }
7928
7929 selected_larger_node |= new_range != old_range;
7930 Selection {
7931 id: selection.id,
7932 start: new_range.start,
7933 end: new_range.end,
7934 goal: SelectionGoal::None,
7935 reversed: selection.reversed,
7936 }
7937 })
7938 .collect::<Vec<_>>();
7939
7940 if selected_larger_node {
7941 stack.push(old_selections);
7942 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7943 s.select(new_selections);
7944 });
7945 }
7946 self.select_larger_syntax_node_stack = stack;
7947 }
7948
7949 pub fn select_smaller_syntax_node(
7950 &mut self,
7951 _: &SelectSmallerSyntaxNode,
7952 cx: &mut ViewContext<Self>,
7953 ) {
7954 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7955 if let Some(selections) = stack.pop() {
7956 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7957 s.select(selections.to_vec());
7958 });
7959 }
7960 self.select_larger_syntax_node_stack = stack;
7961 }
7962
7963 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7964 let project = self.project.clone();
7965 cx.spawn(|this, mut cx| async move {
7966 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7967 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7968 }) else {
7969 return;
7970 };
7971
7972 let Some(project) = project else {
7973 return;
7974 };
7975
7976 let hide_runnables = project
7977 .update(&mut cx, |project, cx| {
7978 // Do not display any test indicators in non-dev server remote projects.
7979 project.is_remote() && project.ssh_connection_string(cx).is_none()
7980 })
7981 .unwrap_or(true);
7982 if hide_runnables {
7983 return;
7984 }
7985 let new_rows =
7986 cx.background_executor()
7987 .spawn({
7988 let snapshot = display_snapshot.clone();
7989 async move {
7990 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7991 }
7992 })
7993 .await;
7994 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7995
7996 this.update(&mut cx, |this, _| {
7997 this.clear_tasks();
7998 for (key, value) in rows {
7999 this.insert_tasks(key, value);
8000 }
8001 })
8002 .ok();
8003 })
8004 }
8005 fn fetch_runnable_ranges(
8006 snapshot: &DisplaySnapshot,
8007 range: Range<Anchor>,
8008 ) -> Vec<language::RunnableRange> {
8009 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8010 }
8011
8012 fn runnable_rows(
8013 project: Model<Project>,
8014 snapshot: DisplaySnapshot,
8015 runnable_ranges: Vec<RunnableRange>,
8016 mut cx: AsyncWindowContext,
8017 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8018 runnable_ranges
8019 .into_iter()
8020 .filter_map(|mut runnable| {
8021 let tasks = cx
8022 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8023 .ok()?;
8024 if tasks.is_empty() {
8025 return None;
8026 }
8027
8028 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8029
8030 let row = snapshot
8031 .buffer_snapshot
8032 .buffer_line_for_row(MultiBufferRow(point.row))?
8033 .1
8034 .start
8035 .row;
8036
8037 let context_range =
8038 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8039 Some((
8040 (runnable.buffer_id, row),
8041 RunnableTasks {
8042 templates: tasks,
8043 offset: MultiBufferOffset(runnable.run_range.start),
8044 context_range,
8045 column: point.column,
8046 extra_variables: runnable.extra_captures,
8047 },
8048 ))
8049 })
8050 .collect()
8051 }
8052
8053 fn templates_with_tags(
8054 project: &Model<Project>,
8055 runnable: &mut Runnable,
8056 cx: &WindowContext<'_>,
8057 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8058 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
8059 let worktree_id = project
8060 .buffer_for_id(runnable.buffer)
8061 .and_then(|buffer| buffer.read(cx).file())
8062 .map(|file| WorktreeId::from_usize(file.worktree_id()));
8063
8064 (project.task_inventory().clone(), worktree_id)
8065 });
8066
8067 let inventory = inventory.read(cx);
8068 let tags = mem::take(&mut runnable.tags);
8069 let mut tags: Vec<_> = tags
8070 .into_iter()
8071 .flat_map(|tag| {
8072 let tag = tag.0.clone();
8073 inventory
8074 .list_tasks(Some(runnable.language.clone()), worktree_id)
8075 .into_iter()
8076 .filter(move |(_, template)| {
8077 template.tags.iter().any(|source_tag| source_tag == &tag)
8078 })
8079 })
8080 .sorted_by_key(|(kind, _)| kind.to_owned())
8081 .collect();
8082 if let Some((leading_tag_source, _)) = tags.first() {
8083 // Strongest source wins; if we have worktree tag binding, prefer that to
8084 // global and language bindings;
8085 // if we have a global binding, prefer that to language binding.
8086 let first_mismatch = tags
8087 .iter()
8088 .position(|(tag_source, _)| tag_source != leading_tag_source);
8089 if let Some(index) = first_mismatch {
8090 tags.truncate(index);
8091 }
8092 }
8093
8094 tags
8095 }
8096
8097 pub fn move_to_enclosing_bracket(
8098 &mut self,
8099 _: &MoveToEnclosingBracket,
8100 cx: &mut ViewContext<Self>,
8101 ) {
8102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8103 s.move_offsets_with(|snapshot, selection| {
8104 let Some(enclosing_bracket_ranges) =
8105 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8106 else {
8107 return;
8108 };
8109
8110 let mut best_length = usize::MAX;
8111 let mut best_inside = false;
8112 let mut best_in_bracket_range = false;
8113 let mut best_destination = None;
8114 for (open, close) in enclosing_bracket_ranges {
8115 let close = close.to_inclusive();
8116 let length = close.end() - open.start;
8117 let inside = selection.start >= open.end && selection.end <= *close.start();
8118 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8119 || close.contains(&selection.head());
8120
8121 // If best is next to a bracket and current isn't, skip
8122 if !in_bracket_range && best_in_bracket_range {
8123 continue;
8124 }
8125
8126 // Prefer smaller lengths unless best is inside and current isn't
8127 if length > best_length && (best_inside || !inside) {
8128 continue;
8129 }
8130
8131 best_length = length;
8132 best_inside = inside;
8133 best_in_bracket_range = in_bracket_range;
8134 best_destination = Some(
8135 if close.contains(&selection.start) && close.contains(&selection.end) {
8136 if inside {
8137 open.end
8138 } else {
8139 open.start
8140 }
8141 } else {
8142 if inside {
8143 *close.start()
8144 } else {
8145 *close.end()
8146 }
8147 },
8148 );
8149 }
8150
8151 if let Some(destination) = best_destination {
8152 selection.collapse_to(destination, SelectionGoal::None);
8153 }
8154 })
8155 });
8156 }
8157
8158 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8159 self.end_selection(cx);
8160 self.selection_history.mode = SelectionHistoryMode::Undoing;
8161 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8162 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8163 self.select_next_state = entry.select_next_state;
8164 self.select_prev_state = entry.select_prev_state;
8165 self.add_selections_state = entry.add_selections_state;
8166 self.request_autoscroll(Autoscroll::newest(), cx);
8167 }
8168 self.selection_history.mode = SelectionHistoryMode::Normal;
8169 }
8170
8171 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8172 self.end_selection(cx);
8173 self.selection_history.mode = SelectionHistoryMode::Redoing;
8174 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8175 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8176 self.select_next_state = entry.select_next_state;
8177 self.select_prev_state = entry.select_prev_state;
8178 self.add_selections_state = entry.add_selections_state;
8179 self.request_autoscroll(Autoscroll::newest(), cx);
8180 }
8181 self.selection_history.mode = SelectionHistoryMode::Normal;
8182 }
8183
8184 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8185 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8186 }
8187
8188 pub fn expand_excerpts_down(
8189 &mut self,
8190 action: &ExpandExcerptsDown,
8191 cx: &mut ViewContext<Self>,
8192 ) {
8193 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8194 }
8195
8196 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8197 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8198 }
8199
8200 pub fn expand_excerpts_for_direction(
8201 &mut self,
8202 lines: u32,
8203 direction: ExpandExcerptDirection,
8204 cx: &mut ViewContext<Self>,
8205 ) {
8206 let selections = self.selections.disjoint_anchors();
8207
8208 let lines = if lines == 0 {
8209 EditorSettings::get_global(cx).expand_excerpt_lines
8210 } else {
8211 lines
8212 };
8213
8214 self.buffer.update(cx, |buffer, cx| {
8215 buffer.expand_excerpts(
8216 selections
8217 .into_iter()
8218 .map(|selection| selection.head().excerpt_id)
8219 .dedup(),
8220 lines,
8221 direction,
8222 cx,
8223 )
8224 })
8225 }
8226
8227 pub fn expand_excerpt(
8228 &mut self,
8229 excerpt: ExcerptId,
8230 direction: ExpandExcerptDirection,
8231 cx: &mut ViewContext<Self>,
8232 ) {
8233 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8234 self.buffer.update(cx, |buffer, cx| {
8235 buffer.expand_excerpts([excerpt], lines, direction, cx)
8236 })
8237 }
8238
8239 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8240 self.go_to_diagnostic_impl(Direction::Next, cx)
8241 }
8242
8243 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8244 self.go_to_diagnostic_impl(Direction::Prev, cx)
8245 }
8246
8247 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8248 let buffer = self.buffer.read(cx).snapshot(cx);
8249 let selection = self.selections.newest::<usize>(cx);
8250
8251 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8252 if direction == Direction::Next {
8253 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8254 let (group_id, jump_to) = popover.activation_info();
8255 if self.activate_diagnostics(group_id, cx) {
8256 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8257 let mut new_selection = s.newest_anchor().clone();
8258 new_selection.collapse_to(jump_to, SelectionGoal::None);
8259 s.select_anchors(vec![new_selection.clone()]);
8260 });
8261 }
8262 return;
8263 }
8264 }
8265
8266 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8267 active_diagnostics
8268 .primary_range
8269 .to_offset(&buffer)
8270 .to_inclusive()
8271 });
8272 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8273 if active_primary_range.contains(&selection.head()) {
8274 *active_primary_range.start()
8275 } else {
8276 selection.head()
8277 }
8278 } else {
8279 selection.head()
8280 };
8281 let snapshot = self.snapshot(cx);
8282 loop {
8283 let diagnostics = if direction == Direction::Prev {
8284 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8285 } else {
8286 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8287 }
8288 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8289 let group = diagnostics
8290 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8291 // be sorted in a stable way
8292 // skip until we are at current active diagnostic, if it exists
8293 .skip_while(|entry| {
8294 (match direction {
8295 Direction::Prev => entry.range.start >= search_start,
8296 Direction::Next => entry.range.start <= search_start,
8297 }) && self
8298 .active_diagnostics
8299 .as_ref()
8300 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8301 })
8302 .find_map(|entry| {
8303 if entry.diagnostic.is_primary
8304 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8305 && !entry.range.is_empty()
8306 // if we match with the active diagnostic, skip it
8307 && Some(entry.diagnostic.group_id)
8308 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8309 {
8310 Some((entry.range, entry.diagnostic.group_id))
8311 } else {
8312 None
8313 }
8314 });
8315
8316 if let Some((primary_range, group_id)) = group {
8317 if self.activate_diagnostics(group_id, cx) {
8318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8319 s.select(vec![Selection {
8320 id: selection.id,
8321 start: primary_range.start,
8322 end: primary_range.start,
8323 reversed: false,
8324 goal: SelectionGoal::None,
8325 }]);
8326 });
8327 }
8328 break;
8329 } else {
8330 // Cycle around to the start of the buffer, potentially moving back to the start of
8331 // the currently active diagnostic.
8332 active_primary_range.take();
8333 if direction == Direction::Prev {
8334 if search_start == buffer.len() {
8335 break;
8336 } else {
8337 search_start = buffer.len();
8338 }
8339 } else if search_start == 0 {
8340 break;
8341 } else {
8342 search_start = 0;
8343 }
8344 }
8345 }
8346 }
8347
8348 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8349 let snapshot = self
8350 .display_map
8351 .update(cx, |display_map, cx| display_map.snapshot(cx));
8352 let selection = self.selections.newest::<Point>(cx);
8353
8354 if !self.seek_in_direction(
8355 &snapshot,
8356 selection.head(),
8357 false,
8358 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8359 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8360 ),
8361 cx,
8362 ) {
8363 let wrapped_point = Point::zero();
8364 self.seek_in_direction(
8365 &snapshot,
8366 wrapped_point,
8367 true,
8368 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8369 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8370 ),
8371 cx,
8372 );
8373 }
8374 }
8375
8376 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8377 let snapshot = self
8378 .display_map
8379 .update(cx, |display_map, cx| display_map.snapshot(cx));
8380 let selection = self.selections.newest::<Point>(cx);
8381
8382 if !self.seek_in_direction(
8383 &snapshot,
8384 selection.head(),
8385 false,
8386 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8387 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8388 ),
8389 cx,
8390 ) {
8391 let wrapped_point = snapshot.buffer_snapshot.max_point();
8392 self.seek_in_direction(
8393 &snapshot,
8394 wrapped_point,
8395 true,
8396 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8397 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8398 ),
8399 cx,
8400 );
8401 }
8402 }
8403
8404 fn seek_in_direction(
8405 &mut self,
8406 snapshot: &DisplaySnapshot,
8407 initial_point: Point,
8408 is_wrapped: bool,
8409 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8410 cx: &mut ViewContext<Editor>,
8411 ) -> bool {
8412 let display_point = initial_point.to_display_point(snapshot);
8413 let mut hunks = hunks
8414 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8415 .filter(|hunk| {
8416 if is_wrapped {
8417 true
8418 } else {
8419 !hunk.contains_display_row(display_point.row())
8420 }
8421 })
8422 .dedup();
8423
8424 if let Some(hunk) = hunks.next() {
8425 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8426 let row = hunk.start_display_row();
8427 let point = DisplayPoint::new(row, 0);
8428 s.select_display_ranges([point..point]);
8429 });
8430
8431 true
8432 } else {
8433 false
8434 }
8435 }
8436
8437 pub fn go_to_definition(
8438 &mut self,
8439 _: &GoToDefinition,
8440 cx: &mut ViewContext<Self>,
8441 ) -> Task<Result<bool>> {
8442 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8443 }
8444
8445 pub fn go_to_implementation(
8446 &mut self,
8447 _: &GoToImplementation,
8448 cx: &mut ViewContext<Self>,
8449 ) -> Task<Result<bool>> {
8450 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8451 }
8452
8453 pub fn go_to_implementation_split(
8454 &mut self,
8455 _: &GoToImplementationSplit,
8456 cx: &mut ViewContext<Self>,
8457 ) -> Task<Result<bool>> {
8458 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8459 }
8460
8461 pub fn go_to_type_definition(
8462 &mut self,
8463 _: &GoToTypeDefinition,
8464 cx: &mut ViewContext<Self>,
8465 ) -> Task<Result<bool>> {
8466 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8467 }
8468
8469 pub fn go_to_definition_split(
8470 &mut self,
8471 _: &GoToDefinitionSplit,
8472 cx: &mut ViewContext<Self>,
8473 ) -> Task<Result<bool>> {
8474 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8475 }
8476
8477 pub fn go_to_type_definition_split(
8478 &mut self,
8479 _: &GoToTypeDefinitionSplit,
8480 cx: &mut ViewContext<Self>,
8481 ) -> Task<Result<bool>> {
8482 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8483 }
8484
8485 fn go_to_definition_of_kind(
8486 &mut self,
8487 kind: GotoDefinitionKind,
8488 split: bool,
8489 cx: &mut ViewContext<Self>,
8490 ) -> Task<Result<bool>> {
8491 let Some(workspace) = self.workspace() else {
8492 return Task::ready(Ok(false));
8493 };
8494 let buffer = self.buffer.read(cx);
8495 let head = self.selections.newest::<usize>(cx).head();
8496 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8497 text_anchor
8498 } else {
8499 return Task::ready(Ok(false));
8500 };
8501
8502 let project = workspace.read(cx).project().clone();
8503 let definitions = project.update(cx, |project, cx| match kind {
8504 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8505 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8506 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8507 });
8508
8509 cx.spawn(|editor, mut cx| async move {
8510 let definitions = definitions.await?;
8511 let navigated = editor
8512 .update(&mut cx, |editor, cx| {
8513 editor.navigate_to_hover_links(
8514 Some(kind),
8515 definitions
8516 .into_iter()
8517 .filter(|location| {
8518 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8519 })
8520 .map(HoverLink::Text)
8521 .collect::<Vec<_>>(),
8522 split,
8523 cx,
8524 )
8525 })?
8526 .await?;
8527 anyhow::Ok(navigated)
8528 })
8529 }
8530
8531 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8532 let position = self.selections.newest_anchor().head();
8533 let Some((buffer, buffer_position)) =
8534 self.buffer.read(cx).text_anchor_for_position(position, cx)
8535 else {
8536 return;
8537 };
8538
8539 cx.spawn(|editor, mut cx| async move {
8540 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8541 editor.update(&mut cx, |_, cx| {
8542 cx.open_url(&url);
8543 })
8544 } else {
8545 Ok(())
8546 }
8547 })
8548 .detach();
8549 }
8550
8551 pub(crate) fn navigate_to_hover_links(
8552 &mut self,
8553 kind: Option<GotoDefinitionKind>,
8554 mut definitions: Vec<HoverLink>,
8555 split: bool,
8556 cx: &mut ViewContext<Editor>,
8557 ) -> Task<Result<bool>> {
8558 // If there is one definition, just open it directly
8559 if definitions.len() == 1 {
8560 let definition = definitions.pop().unwrap();
8561 let target_task = match definition {
8562 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8563 HoverLink::InlayHint(lsp_location, server_id) => {
8564 self.compute_target_location(lsp_location, server_id, cx)
8565 }
8566 HoverLink::Url(url) => {
8567 cx.open_url(&url);
8568 Task::ready(Ok(None))
8569 }
8570 };
8571 cx.spawn(|editor, mut cx| async move {
8572 let target = target_task.await.context("target resolution task")?;
8573 if let Some(target) = target {
8574 editor.update(&mut cx, |editor, cx| {
8575 let Some(workspace) = editor.workspace() else {
8576 return false;
8577 };
8578 let pane = workspace.read(cx).active_pane().clone();
8579
8580 let range = target.range.to_offset(target.buffer.read(cx));
8581 let range = editor.range_for_match(&range);
8582
8583 /// If select range has more than one line, we
8584 /// just point the cursor to range.start.
8585 fn check_multiline_range(
8586 buffer: &Buffer,
8587 range: Range<usize>,
8588 ) -> Range<usize> {
8589 if buffer.offset_to_point(range.start).row
8590 == buffer.offset_to_point(range.end).row
8591 {
8592 range
8593 } else {
8594 range.start..range.start
8595 }
8596 }
8597
8598 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8599 let buffer = target.buffer.read(cx);
8600 let range = check_multiline_range(buffer, range);
8601 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8602 s.select_ranges([range]);
8603 });
8604 } else {
8605 cx.window_context().defer(move |cx| {
8606 let target_editor: View<Self> =
8607 workspace.update(cx, |workspace, cx| {
8608 let pane = if split {
8609 workspace.adjacent_pane(cx)
8610 } else {
8611 workspace.active_pane().clone()
8612 };
8613
8614 workspace.open_project_item(pane, target.buffer.clone(), cx)
8615 });
8616 target_editor.update(cx, |target_editor, cx| {
8617 // When selecting a definition in a different buffer, disable the nav history
8618 // to avoid creating a history entry at the previous cursor location.
8619 pane.update(cx, |pane, _| pane.disable_history());
8620 let buffer = target.buffer.read(cx);
8621 let range = check_multiline_range(buffer, range);
8622 target_editor.change_selections(
8623 Some(Autoscroll::focused()),
8624 cx,
8625 |s| {
8626 s.select_ranges([range]);
8627 },
8628 );
8629 pane.update(cx, |pane, _| pane.enable_history());
8630 });
8631 });
8632 }
8633 true
8634 })
8635 } else {
8636 Ok(false)
8637 }
8638 })
8639 } else if !definitions.is_empty() {
8640 let replica_id = self.replica_id(cx);
8641 cx.spawn(|editor, mut cx| async move {
8642 let (title, location_tasks, workspace) = editor
8643 .update(&mut cx, |editor, cx| {
8644 let tab_kind = match kind {
8645 Some(GotoDefinitionKind::Implementation) => "Implementations",
8646 _ => "Definitions",
8647 };
8648 let title = definitions
8649 .iter()
8650 .find_map(|definition| match definition {
8651 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8652 let buffer = origin.buffer.read(cx);
8653 format!(
8654 "{} for {}",
8655 tab_kind,
8656 buffer
8657 .text_for_range(origin.range.clone())
8658 .collect::<String>()
8659 )
8660 }),
8661 HoverLink::InlayHint(_, _) => None,
8662 HoverLink::Url(_) => None,
8663 })
8664 .unwrap_or(tab_kind.to_string());
8665 let location_tasks = definitions
8666 .into_iter()
8667 .map(|definition| match definition {
8668 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8669 HoverLink::InlayHint(lsp_location, server_id) => {
8670 editor.compute_target_location(lsp_location, server_id, cx)
8671 }
8672 HoverLink::Url(_) => Task::ready(Ok(None)),
8673 })
8674 .collect::<Vec<_>>();
8675 (title, location_tasks, editor.workspace().clone())
8676 })
8677 .context("location tasks preparation")?;
8678
8679 let locations = futures::future::join_all(location_tasks)
8680 .await
8681 .into_iter()
8682 .filter_map(|location| location.transpose())
8683 .collect::<Result<_>>()
8684 .context("location tasks")?;
8685
8686 let Some(workspace) = workspace else {
8687 return Ok(false);
8688 };
8689 let opened = workspace
8690 .update(&mut cx, |workspace, cx| {
8691 Self::open_locations_in_multibuffer(
8692 workspace, locations, replica_id, title, split, cx,
8693 )
8694 })
8695 .ok();
8696
8697 anyhow::Ok(opened.is_some())
8698 })
8699 } else {
8700 Task::ready(Ok(false))
8701 }
8702 }
8703
8704 fn compute_target_location(
8705 &self,
8706 lsp_location: lsp::Location,
8707 server_id: LanguageServerId,
8708 cx: &mut ViewContext<Editor>,
8709 ) -> Task<anyhow::Result<Option<Location>>> {
8710 let Some(project) = self.project.clone() else {
8711 return Task::Ready(Some(Ok(None)));
8712 };
8713
8714 cx.spawn(move |editor, mut cx| async move {
8715 let location_task = editor.update(&mut cx, |editor, cx| {
8716 project.update(cx, |project, cx| {
8717 let language_server_name =
8718 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8719 project
8720 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8721 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8722 });
8723 language_server_name.map(|language_server_name| {
8724 project.open_local_buffer_via_lsp(
8725 lsp_location.uri.clone(),
8726 server_id,
8727 language_server_name,
8728 cx,
8729 )
8730 })
8731 })
8732 })?;
8733 let location = match location_task {
8734 Some(task) => Some({
8735 let target_buffer_handle = task.await.context("open local buffer")?;
8736 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8737 let target_start = target_buffer
8738 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8739 let target_end = target_buffer
8740 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8741 target_buffer.anchor_after(target_start)
8742 ..target_buffer.anchor_before(target_end)
8743 })?;
8744 Location {
8745 buffer: target_buffer_handle,
8746 range,
8747 }
8748 }),
8749 None => None,
8750 };
8751 Ok(location)
8752 })
8753 }
8754
8755 pub fn find_all_references(
8756 &mut self,
8757 _: &FindAllReferences,
8758 cx: &mut ViewContext<Self>,
8759 ) -> Option<Task<Result<()>>> {
8760 let multi_buffer = self.buffer.read(cx);
8761 let selection = self.selections.newest::<usize>(cx);
8762 let head = selection.head();
8763
8764 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8765 let head_anchor = multi_buffer_snapshot.anchor_at(
8766 head,
8767 if head < selection.tail() {
8768 Bias::Right
8769 } else {
8770 Bias::Left
8771 },
8772 );
8773
8774 match self
8775 .find_all_references_task_sources
8776 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8777 {
8778 Ok(_) => {
8779 log::info!(
8780 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8781 );
8782 return None;
8783 }
8784 Err(i) => {
8785 self.find_all_references_task_sources.insert(i, head_anchor);
8786 }
8787 }
8788
8789 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8790 let replica_id = self.replica_id(cx);
8791 let workspace = self.workspace()?;
8792 let project = workspace.read(cx).project().clone();
8793 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8794 Some(cx.spawn(|editor, mut cx| async move {
8795 let _cleanup = defer({
8796 let mut cx = cx.clone();
8797 move || {
8798 let _ = editor.update(&mut cx, |editor, _| {
8799 if let Ok(i) =
8800 editor
8801 .find_all_references_task_sources
8802 .binary_search_by(|anchor| {
8803 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8804 })
8805 {
8806 editor.find_all_references_task_sources.remove(i);
8807 }
8808 });
8809 }
8810 });
8811
8812 let locations = references.await?;
8813 if locations.is_empty() {
8814 return anyhow::Ok(());
8815 }
8816
8817 workspace.update(&mut cx, |workspace, cx| {
8818 let title = locations
8819 .first()
8820 .as_ref()
8821 .map(|location| {
8822 let buffer = location.buffer.read(cx);
8823 format!(
8824 "References to `{}`",
8825 buffer
8826 .text_for_range(location.range.clone())
8827 .collect::<String>()
8828 )
8829 })
8830 .unwrap();
8831 Self::open_locations_in_multibuffer(
8832 workspace, locations, replica_id, title, false, cx,
8833 );
8834 })
8835 }))
8836 }
8837
8838 /// Opens a multibuffer with the given project locations in it
8839 pub fn open_locations_in_multibuffer(
8840 workspace: &mut Workspace,
8841 mut locations: Vec<Location>,
8842 replica_id: ReplicaId,
8843 title: String,
8844 split: bool,
8845 cx: &mut ViewContext<Workspace>,
8846 ) {
8847 // If there are multiple definitions, open them in a multibuffer
8848 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8849 let mut locations = locations.into_iter().peekable();
8850 let mut ranges_to_highlight = Vec::new();
8851 let capability = workspace.project().read(cx).capability();
8852
8853 let excerpt_buffer = cx.new_model(|cx| {
8854 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8855 while let Some(location) = locations.next() {
8856 let buffer = location.buffer.read(cx);
8857 let mut ranges_for_buffer = Vec::new();
8858 let range = location.range.to_offset(buffer);
8859 ranges_for_buffer.push(range.clone());
8860
8861 while let Some(next_location) = locations.peek() {
8862 if next_location.buffer == location.buffer {
8863 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8864 locations.next();
8865 } else {
8866 break;
8867 }
8868 }
8869
8870 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8871 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8872 location.buffer.clone(),
8873 ranges_for_buffer,
8874 DEFAULT_MULTIBUFFER_CONTEXT,
8875 cx,
8876 ))
8877 }
8878
8879 multibuffer.with_title(title)
8880 });
8881
8882 let editor = cx.new_view(|cx| {
8883 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
8884 });
8885 editor.update(cx, |editor, cx| {
8886 editor.highlight_background::<Self>(
8887 &ranges_to_highlight,
8888 |theme| theme.editor_highlighted_line_background,
8889 cx,
8890 );
8891 });
8892
8893 let item = Box::new(editor);
8894 let item_id = item.item_id();
8895
8896 if split {
8897 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8898 } else {
8899 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8900 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8901 pane.close_current_preview_item(cx)
8902 } else {
8903 None
8904 }
8905 });
8906 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8907 }
8908 workspace.active_pane().update(cx, |pane, cx| {
8909 pane.set_preview_item_id(Some(item_id), cx);
8910 });
8911 }
8912
8913 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8914 use language::ToOffset as _;
8915
8916 let project = self.project.clone()?;
8917 let selection = self.selections.newest_anchor().clone();
8918 let (cursor_buffer, cursor_buffer_position) = self
8919 .buffer
8920 .read(cx)
8921 .text_anchor_for_position(selection.head(), cx)?;
8922 let (tail_buffer, cursor_buffer_position_end) = self
8923 .buffer
8924 .read(cx)
8925 .text_anchor_for_position(selection.tail(), cx)?;
8926 if tail_buffer != cursor_buffer {
8927 return None;
8928 }
8929
8930 let snapshot = cursor_buffer.read(cx).snapshot();
8931 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8932 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8933 let prepare_rename = project.update(cx, |project, cx| {
8934 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8935 });
8936 drop(snapshot);
8937
8938 Some(cx.spawn(|this, mut cx| async move {
8939 let rename_range = if let Some(range) = prepare_rename.await? {
8940 Some(range)
8941 } else {
8942 this.update(&mut cx, |this, cx| {
8943 let buffer = this.buffer.read(cx).snapshot(cx);
8944 let mut buffer_highlights = this
8945 .document_highlights_for_position(selection.head(), &buffer)
8946 .filter(|highlight| {
8947 highlight.start.excerpt_id == selection.head().excerpt_id
8948 && highlight.end.excerpt_id == selection.head().excerpt_id
8949 });
8950 buffer_highlights
8951 .next()
8952 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8953 })?
8954 };
8955 if let Some(rename_range) = rename_range {
8956 this.update(&mut cx, |this, cx| {
8957 let snapshot = cursor_buffer.read(cx).snapshot();
8958 let rename_buffer_range = rename_range.to_offset(&snapshot);
8959 let cursor_offset_in_rename_range =
8960 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8961 let cursor_offset_in_rename_range_end =
8962 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8963
8964 this.take_rename(false, cx);
8965 let buffer = this.buffer.read(cx).read(cx);
8966 let cursor_offset = selection.head().to_offset(&buffer);
8967 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8968 let rename_end = rename_start + rename_buffer_range.len();
8969 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8970 let mut old_highlight_id = None;
8971 let old_name: Arc<str> = buffer
8972 .chunks(rename_start..rename_end, true)
8973 .map(|chunk| {
8974 if old_highlight_id.is_none() {
8975 old_highlight_id = chunk.syntax_highlight_id;
8976 }
8977 chunk.text
8978 })
8979 .collect::<String>()
8980 .into();
8981
8982 drop(buffer);
8983
8984 // Position the selection in the rename editor so that it matches the current selection.
8985 this.show_local_selections = false;
8986 let rename_editor = cx.new_view(|cx| {
8987 let mut editor = Editor::single_line(cx);
8988 editor.buffer.update(cx, |buffer, cx| {
8989 buffer.edit([(0..0, old_name.clone())], None, cx)
8990 });
8991 let rename_selection_range = match cursor_offset_in_rename_range
8992 .cmp(&cursor_offset_in_rename_range_end)
8993 {
8994 Ordering::Equal => {
8995 editor.select_all(&SelectAll, cx);
8996 return editor;
8997 }
8998 Ordering::Less => {
8999 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9000 }
9001 Ordering::Greater => {
9002 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9003 }
9004 };
9005 if rename_selection_range.end > old_name.len() {
9006 editor.select_all(&SelectAll, cx);
9007 } else {
9008 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9009 s.select_ranges([rename_selection_range]);
9010 });
9011 }
9012 editor
9013 });
9014
9015 let write_highlights =
9016 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9017 let read_highlights =
9018 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9019 let ranges = write_highlights
9020 .iter()
9021 .flat_map(|(_, ranges)| ranges.iter())
9022 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9023 .cloned()
9024 .collect();
9025
9026 this.highlight_text::<Rename>(
9027 ranges,
9028 HighlightStyle {
9029 fade_out: Some(0.6),
9030 ..Default::default()
9031 },
9032 cx,
9033 );
9034 let rename_focus_handle = rename_editor.focus_handle(cx);
9035 cx.focus(&rename_focus_handle);
9036 let block_id = this.insert_blocks(
9037 [BlockProperties {
9038 style: BlockStyle::Flex,
9039 position: range.start,
9040 height: 1,
9041 render: Box::new({
9042 let rename_editor = rename_editor.clone();
9043 move |cx: &mut BlockContext| {
9044 let mut text_style = cx.editor_style.text.clone();
9045 if let Some(highlight_style) = old_highlight_id
9046 .and_then(|h| h.style(&cx.editor_style.syntax))
9047 {
9048 text_style = text_style.highlight(highlight_style);
9049 }
9050 div()
9051 .pl(cx.anchor_x)
9052 .child(EditorElement::new(
9053 &rename_editor,
9054 EditorStyle {
9055 background: cx.theme().system().transparent,
9056 local_player: cx.editor_style.local_player,
9057 text: text_style,
9058 scrollbar_width: cx.editor_style.scrollbar_width,
9059 syntax: cx.editor_style.syntax.clone(),
9060 status: cx.editor_style.status.clone(),
9061 inlay_hints_style: HighlightStyle {
9062 color: Some(cx.theme().status().hint),
9063 font_weight: Some(FontWeight::BOLD),
9064 ..HighlightStyle::default()
9065 },
9066 suggestions_style: HighlightStyle {
9067 color: Some(cx.theme().status().predictive),
9068 ..HighlightStyle::default()
9069 },
9070 },
9071 ))
9072 .into_any_element()
9073 }
9074 }),
9075 disposition: BlockDisposition::Below,
9076 }],
9077 Some(Autoscroll::fit()),
9078 cx,
9079 )[0];
9080 this.pending_rename = Some(RenameState {
9081 range,
9082 old_name,
9083 editor: rename_editor,
9084 block_id,
9085 });
9086 })?;
9087 }
9088
9089 Ok(())
9090 }))
9091 }
9092
9093 pub fn confirm_rename(
9094 &mut self,
9095 _: &ConfirmRename,
9096 cx: &mut ViewContext<Self>,
9097 ) -> Option<Task<Result<()>>> {
9098 let rename = self.take_rename(false, cx)?;
9099 let workspace = self.workspace()?;
9100 let (start_buffer, start) = self
9101 .buffer
9102 .read(cx)
9103 .text_anchor_for_position(rename.range.start, cx)?;
9104 let (end_buffer, end) = self
9105 .buffer
9106 .read(cx)
9107 .text_anchor_for_position(rename.range.end, cx)?;
9108 if start_buffer != end_buffer {
9109 return None;
9110 }
9111
9112 let buffer = start_buffer;
9113 let range = start..end;
9114 let old_name = rename.old_name;
9115 let new_name = rename.editor.read(cx).text(cx);
9116
9117 let rename = workspace
9118 .read(cx)
9119 .project()
9120 .clone()
9121 .update(cx, |project, cx| {
9122 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9123 });
9124 let workspace = workspace.downgrade();
9125
9126 Some(cx.spawn(|editor, mut cx| async move {
9127 let project_transaction = rename.await?;
9128 Self::open_project_transaction(
9129 &editor,
9130 workspace,
9131 project_transaction,
9132 format!("Rename: {} → {}", old_name, new_name),
9133 cx.clone(),
9134 )
9135 .await?;
9136
9137 editor.update(&mut cx, |editor, cx| {
9138 editor.refresh_document_highlights(cx);
9139 })?;
9140 Ok(())
9141 }))
9142 }
9143
9144 fn take_rename(
9145 &mut self,
9146 moving_cursor: bool,
9147 cx: &mut ViewContext<Self>,
9148 ) -> Option<RenameState> {
9149 let rename = self.pending_rename.take()?;
9150 if rename.editor.focus_handle(cx).is_focused(cx) {
9151 cx.focus(&self.focus_handle);
9152 }
9153
9154 self.remove_blocks(
9155 [rename.block_id].into_iter().collect(),
9156 Some(Autoscroll::fit()),
9157 cx,
9158 );
9159 self.clear_highlights::<Rename>(cx);
9160 self.show_local_selections = true;
9161
9162 if moving_cursor {
9163 let rename_editor = rename.editor.read(cx);
9164 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9165
9166 // Update the selection to match the position of the selection inside
9167 // the rename editor.
9168 let snapshot = self.buffer.read(cx).read(cx);
9169 let rename_range = rename.range.to_offset(&snapshot);
9170 let cursor_in_editor = snapshot
9171 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9172 .min(rename_range.end);
9173 drop(snapshot);
9174
9175 self.change_selections(None, cx, |s| {
9176 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9177 });
9178 } else {
9179 self.refresh_document_highlights(cx);
9180 }
9181
9182 Some(rename)
9183 }
9184
9185 pub fn pending_rename(&self) -> Option<&RenameState> {
9186 self.pending_rename.as_ref()
9187 }
9188
9189 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9190 let project = match &self.project {
9191 Some(project) => project.clone(),
9192 None => return None,
9193 };
9194
9195 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9196 }
9197
9198 fn perform_format(
9199 &mut self,
9200 project: Model<Project>,
9201 trigger: FormatTrigger,
9202 cx: &mut ViewContext<Self>,
9203 ) -> Task<Result<()>> {
9204 let buffer = self.buffer().clone();
9205 let mut buffers = buffer.read(cx).all_buffers();
9206 if trigger == FormatTrigger::Save {
9207 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9208 }
9209
9210 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9211 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9212
9213 cx.spawn(|_, mut cx| async move {
9214 let transaction = futures::select_biased! {
9215 () = timeout => {
9216 log::warn!("timed out waiting for formatting");
9217 None
9218 }
9219 transaction = format.log_err().fuse() => transaction,
9220 };
9221
9222 buffer
9223 .update(&mut cx, |buffer, cx| {
9224 if let Some(transaction) = transaction {
9225 if !buffer.is_singleton() {
9226 buffer.push_transaction(&transaction.0, cx);
9227 }
9228 }
9229
9230 cx.notify();
9231 })
9232 .ok();
9233
9234 Ok(())
9235 })
9236 }
9237
9238 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9239 if let Some(project) = self.project.clone() {
9240 self.buffer.update(cx, |multi_buffer, cx| {
9241 project.update(cx, |project, cx| {
9242 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9243 });
9244 })
9245 }
9246 }
9247
9248 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9249 cx.show_character_palette();
9250 }
9251
9252 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9253 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9254 let buffer = self.buffer.read(cx).snapshot(cx);
9255 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9256 let is_valid = buffer
9257 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9258 .any(|entry| {
9259 entry.diagnostic.is_primary
9260 && !entry.range.is_empty()
9261 && entry.range.start == primary_range_start
9262 && entry.diagnostic.message == active_diagnostics.primary_message
9263 });
9264
9265 if is_valid != active_diagnostics.is_valid {
9266 active_diagnostics.is_valid = is_valid;
9267 let mut new_styles = HashMap::default();
9268 for (block_id, diagnostic) in &active_diagnostics.blocks {
9269 new_styles.insert(
9270 *block_id,
9271 (
9272 None,
9273 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9274 ),
9275 );
9276 }
9277 self.display_map.update(cx, |display_map, cx| {
9278 display_map.replace_blocks(new_styles, cx)
9279 });
9280 }
9281 }
9282 }
9283
9284 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9285 self.dismiss_diagnostics(cx);
9286 let snapshot = self.snapshot(cx);
9287 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9288 let buffer = self.buffer.read(cx).snapshot(cx);
9289
9290 let mut primary_range = None;
9291 let mut primary_message = None;
9292 let mut group_end = Point::zero();
9293 let diagnostic_group = buffer
9294 .diagnostic_group::<MultiBufferPoint>(group_id)
9295 .filter_map(|entry| {
9296 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9297 && (entry.range.start.row == entry.range.end.row
9298 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9299 {
9300 return None;
9301 }
9302 if entry.range.end > group_end {
9303 group_end = entry.range.end;
9304 }
9305 if entry.diagnostic.is_primary {
9306 primary_range = Some(entry.range.clone());
9307 primary_message = Some(entry.diagnostic.message.clone());
9308 }
9309 Some(entry)
9310 })
9311 .collect::<Vec<_>>();
9312 let primary_range = primary_range?;
9313 let primary_message = primary_message?;
9314 let primary_range =
9315 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9316
9317 let blocks = display_map
9318 .insert_blocks(
9319 diagnostic_group.iter().map(|entry| {
9320 let diagnostic = entry.diagnostic.clone();
9321 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9322 BlockProperties {
9323 style: BlockStyle::Fixed,
9324 position: buffer.anchor_after(entry.range.start),
9325 height: message_height,
9326 render: diagnostic_block_renderer(diagnostic, true),
9327 disposition: BlockDisposition::Below,
9328 }
9329 }),
9330 cx,
9331 )
9332 .into_iter()
9333 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9334 .collect();
9335
9336 Some(ActiveDiagnosticGroup {
9337 primary_range,
9338 primary_message,
9339 group_id,
9340 blocks,
9341 is_valid: true,
9342 })
9343 });
9344 self.active_diagnostics.is_some()
9345 }
9346
9347 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9348 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9349 self.display_map.update(cx, |display_map, cx| {
9350 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9351 });
9352 cx.notify();
9353 }
9354 }
9355
9356 pub fn set_selections_from_remote(
9357 &mut self,
9358 selections: Vec<Selection<Anchor>>,
9359 pending_selection: Option<Selection<Anchor>>,
9360 cx: &mut ViewContext<Self>,
9361 ) {
9362 let old_cursor_position = self.selections.newest_anchor().head();
9363 self.selections.change_with(cx, |s| {
9364 s.select_anchors(selections);
9365 if let Some(pending_selection) = pending_selection {
9366 s.set_pending(pending_selection, SelectMode::Character);
9367 } else {
9368 s.clear_pending();
9369 }
9370 });
9371 self.selections_did_change(false, &old_cursor_position, true, cx);
9372 }
9373
9374 fn push_to_selection_history(&mut self) {
9375 self.selection_history.push(SelectionHistoryEntry {
9376 selections: self.selections.disjoint_anchors(),
9377 select_next_state: self.select_next_state.clone(),
9378 select_prev_state: self.select_prev_state.clone(),
9379 add_selections_state: self.add_selections_state.clone(),
9380 });
9381 }
9382
9383 pub fn transact(
9384 &mut self,
9385 cx: &mut ViewContext<Self>,
9386 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9387 ) -> Option<TransactionId> {
9388 self.start_transaction_at(Instant::now(), cx);
9389 update(self, cx);
9390 self.end_transaction_at(Instant::now(), cx)
9391 }
9392
9393 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9394 self.end_selection(cx);
9395 if let Some(tx_id) = self
9396 .buffer
9397 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9398 {
9399 self.selection_history
9400 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9401 cx.emit(EditorEvent::TransactionBegun {
9402 transaction_id: tx_id,
9403 })
9404 }
9405 }
9406
9407 fn end_transaction_at(
9408 &mut self,
9409 now: Instant,
9410 cx: &mut ViewContext<Self>,
9411 ) -> Option<TransactionId> {
9412 if let Some(tx_id) = self
9413 .buffer
9414 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9415 {
9416 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9417 *end_selections = Some(self.selections.disjoint_anchors());
9418 } else {
9419 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9420 }
9421
9422 cx.emit(EditorEvent::Edited);
9423 Some(tx_id)
9424 } else {
9425 None
9426 }
9427 }
9428
9429 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9430 let mut fold_ranges = Vec::new();
9431
9432 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9433
9434 let selections = self.selections.all_adjusted(cx);
9435 for selection in selections {
9436 let range = selection.range().sorted();
9437 let buffer_start_row = range.start.row;
9438
9439 for row in (0..=range.end.row).rev() {
9440 if let Some((foldable_range, fold_text)) =
9441 display_map.foldable_range(MultiBufferRow(row))
9442 {
9443 if foldable_range.end.row >= buffer_start_row {
9444 fold_ranges.push((foldable_range, fold_text));
9445 if row <= range.start.row {
9446 break;
9447 }
9448 }
9449 }
9450 }
9451 }
9452
9453 self.fold_ranges(fold_ranges, true, cx);
9454 }
9455
9456 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9457 let buffer_row = fold_at.buffer_row;
9458 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9459
9460 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9461 let autoscroll = self
9462 .selections
9463 .all::<Point>(cx)
9464 .iter()
9465 .any(|selection| fold_range.overlaps(&selection.range()));
9466
9467 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9468 }
9469 }
9470
9471 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9472 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9473 let buffer = &display_map.buffer_snapshot;
9474 let selections = self.selections.all::<Point>(cx);
9475 let ranges = selections
9476 .iter()
9477 .map(|s| {
9478 let range = s.display_range(&display_map).sorted();
9479 let mut start = range.start.to_point(&display_map);
9480 let mut end = range.end.to_point(&display_map);
9481 start.column = 0;
9482 end.column = buffer.line_len(MultiBufferRow(end.row));
9483 start..end
9484 })
9485 .collect::<Vec<_>>();
9486
9487 self.unfold_ranges(ranges, true, true, cx);
9488 }
9489
9490 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9491 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9492
9493 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9494 ..Point::new(
9495 unfold_at.buffer_row.0,
9496 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9497 );
9498
9499 let autoscroll = self
9500 .selections
9501 .all::<Point>(cx)
9502 .iter()
9503 .any(|selection| selection.range().overlaps(&intersection_range));
9504
9505 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9506 }
9507
9508 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9509 let selections = self.selections.all::<Point>(cx);
9510 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9511 let line_mode = self.selections.line_mode;
9512 let ranges = selections.into_iter().map(|s| {
9513 if line_mode {
9514 let start = Point::new(s.start.row, 0);
9515 let end = Point::new(
9516 s.end.row,
9517 display_map
9518 .buffer_snapshot
9519 .line_len(MultiBufferRow(s.end.row)),
9520 );
9521 (start..end, display_map.fold_placeholder.clone())
9522 } else {
9523 (s.start..s.end, display_map.fold_placeholder.clone())
9524 }
9525 });
9526 self.fold_ranges(ranges, true, cx);
9527 }
9528
9529 pub fn fold_ranges<T: ToOffset + Clone>(
9530 &mut self,
9531 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9532 auto_scroll: bool,
9533 cx: &mut ViewContext<Self>,
9534 ) {
9535 let mut fold_ranges = Vec::new();
9536 let mut buffers_affected = HashMap::default();
9537 let multi_buffer = self.buffer().read(cx);
9538 for (fold_range, fold_text) in ranges {
9539 if let Some((_, buffer, _)) =
9540 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9541 {
9542 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9543 };
9544 fold_ranges.push((fold_range, fold_text));
9545 }
9546
9547 let mut ranges = fold_ranges.into_iter().peekable();
9548 if ranges.peek().is_some() {
9549 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9550
9551 if auto_scroll {
9552 self.request_autoscroll(Autoscroll::fit(), cx);
9553 }
9554
9555 for buffer in buffers_affected.into_values() {
9556 self.sync_expanded_diff_hunks(buffer, cx);
9557 }
9558
9559 cx.notify();
9560
9561 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9562 // Clear diagnostics block when folding a range that contains it.
9563 let snapshot = self.snapshot(cx);
9564 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9565 drop(snapshot);
9566 self.active_diagnostics = Some(active_diagnostics);
9567 self.dismiss_diagnostics(cx);
9568 } else {
9569 self.active_diagnostics = Some(active_diagnostics);
9570 }
9571 }
9572
9573 self.scrollbar_marker_state.dirty = true;
9574 }
9575 }
9576
9577 pub fn unfold_ranges<T: ToOffset + Clone>(
9578 &mut self,
9579 ranges: impl IntoIterator<Item = Range<T>>,
9580 inclusive: bool,
9581 auto_scroll: bool,
9582 cx: &mut ViewContext<Self>,
9583 ) {
9584 let mut unfold_ranges = Vec::new();
9585 let mut buffers_affected = HashMap::default();
9586 let multi_buffer = self.buffer().read(cx);
9587 for range in ranges {
9588 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9589 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9590 };
9591 unfold_ranges.push(range);
9592 }
9593
9594 let mut ranges = unfold_ranges.into_iter().peekable();
9595 if ranges.peek().is_some() {
9596 self.display_map
9597 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9598 if auto_scroll {
9599 self.request_autoscroll(Autoscroll::fit(), cx);
9600 }
9601
9602 for buffer in buffers_affected.into_values() {
9603 self.sync_expanded_diff_hunks(buffer, cx);
9604 }
9605
9606 cx.notify();
9607 self.scrollbar_marker_state.dirty = true;
9608 self.active_indent_guides_state.dirty = true;
9609 }
9610 }
9611
9612 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9613 if hovered != self.gutter_hovered {
9614 self.gutter_hovered = hovered;
9615 cx.notify();
9616 }
9617 }
9618
9619 pub fn insert_blocks(
9620 &mut self,
9621 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9622 autoscroll: Option<Autoscroll>,
9623 cx: &mut ViewContext<Self>,
9624 ) -> Vec<BlockId> {
9625 let blocks = self
9626 .display_map
9627 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9628 if let Some(autoscroll) = autoscroll {
9629 self.request_autoscroll(autoscroll, cx);
9630 }
9631 blocks
9632 }
9633
9634 pub fn replace_blocks(
9635 &mut self,
9636 blocks: HashMap<BlockId, (Option<u8>, RenderBlock)>,
9637 autoscroll: Option<Autoscroll>,
9638 cx: &mut ViewContext<Self>,
9639 ) {
9640 self.display_map
9641 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
9642 if let Some(autoscroll) = autoscroll {
9643 self.request_autoscroll(autoscroll, cx);
9644 }
9645 }
9646
9647 pub fn remove_blocks(
9648 &mut self,
9649 block_ids: HashSet<BlockId>,
9650 autoscroll: Option<Autoscroll>,
9651 cx: &mut ViewContext<Self>,
9652 ) {
9653 self.display_map.update(cx, |display_map, cx| {
9654 display_map.remove_blocks(block_ids, cx)
9655 });
9656 if let Some(autoscroll) = autoscroll {
9657 self.request_autoscroll(autoscroll, cx);
9658 }
9659 }
9660
9661 pub fn insert_flaps(
9662 &mut self,
9663 flaps: impl IntoIterator<Item = Flap>,
9664 cx: &mut ViewContext<Self>,
9665 ) -> Vec<FlapId> {
9666 self.display_map
9667 .update(cx, |map, cx| map.insert_flaps(flaps, cx))
9668 }
9669
9670 pub fn remove_flaps(
9671 &mut self,
9672 ids: impl IntoIterator<Item = FlapId>,
9673 cx: &mut ViewContext<Self>,
9674 ) {
9675 self.display_map
9676 .update(cx, |map, cx| map.remove_flaps(ids, cx));
9677 }
9678
9679 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9680 self.display_map
9681 .update(cx, |map, cx| map.snapshot(cx))
9682 .longest_row()
9683 }
9684
9685 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9686 self.display_map
9687 .update(cx, |map, cx| map.snapshot(cx))
9688 .max_point()
9689 }
9690
9691 pub fn text(&self, cx: &AppContext) -> String {
9692 self.buffer.read(cx).read(cx).text()
9693 }
9694
9695 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9696 let text = self.text(cx);
9697 let text = text.trim();
9698
9699 if text.is_empty() {
9700 return None;
9701 }
9702
9703 Some(text.to_string())
9704 }
9705
9706 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9707 self.transact(cx, |this, cx| {
9708 this.buffer
9709 .read(cx)
9710 .as_singleton()
9711 .expect("you can only call set_text on editors for singleton buffers")
9712 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9713 });
9714 }
9715
9716 pub fn display_text(&self, cx: &mut AppContext) -> String {
9717 self.display_map
9718 .update(cx, |map, cx| map.snapshot(cx))
9719 .text()
9720 }
9721
9722 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9723 let mut wrap_guides = smallvec::smallvec![];
9724
9725 if self.show_wrap_guides == Some(false) {
9726 return wrap_guides;
9727 }
9728
9729 let settings = self.buffer.read(cx).settings_at(0, cx);
9730 if settings.show_wrap_guides {
9731 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9732 wrap_guides.push((soft_wrap as usize, true));
9733 }
9734 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9735 }
9736
9737 wrap_guides
9738 }
9739
9740 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9741 let settings = self.buffer.read(cx).settings_at(0, cx);
9742 let mode = self
9743 .soft_wrap_mode_override
9744 .unwrap_or_else(|| settings.soft_wrap);
9745 match mode {
9746 language_settings::SoftWrap::None => SoftWrap::None,
9747 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9748 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9749 language_settings::SoftWrap::PreferredLineLength => {
9750 SoftWrap::Column(settings.preferred_line_length)
9751 }
9752 }
9753 }
9754
9755 pub fn set_soft_wrap_mode(
9756 &mut self,
9757 mode: language_settings::SoftWrap,
9758 cx: &mut ViewContext<Self>,
9759 ) {
9760 self.soft_wrap_mode_override = Some(mode);
9761 cx.notify();
9762 }
9763
9764 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9765 let rem_size = cx.rem_size();
9766 self.display_map.update(cx, |map, cx| {
9767 map.set_font(
9768 style.text.font(),
9769 style.text.font_size.to_pixels(rem_size),
9770 cx,
9771 )
9772 });
9773 self.style = Some(style);
9774 }
9775
9776 pub fn style(&self) -> Option<&EditorStyle> {
9777 self.style.as_ref()
9778 }
9779
9780 // Called by the element. This method is not designed to be called outside of the editor
9781 // element's layout code because it does not notify when rewrapping is computed synchronously.
9782 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9783 self.display_map
9784 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9785 }
9786
9787 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9788 if self.soft_wrap_mode_override.is_some() {
9789 self.soft_wrap_mode_override.take();
9790 } else {
9791 let soft_wrap = match self.soft_wrap_mode(cx) {
9792 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9793 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9794 language_settings::SoftWrap::PreferLine
9795 }
9796 };
9797 self.soft_wrap_mode_override = Some(soft_wrap);
9798 }
9799 cx.notify();
9800 }
9801
9802 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
9803 let Some(workspace) = self.workspace() else {
9804 return;
9805 };
9806 let fs = workspace.read(cx).app_state().fs.clone();
9807 let current_show = TabBarSettings::get_global(cx).show;
9808 update_settings_file::<TabBarSettings>(fs, cx, move |setting| {
9809 setting.show = Some(!current_show);
9810 });
9811 }
9812
9813 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
9814 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
9815 self.buffer
9816 .read(cx)
9817 .settings_at(0, cx)
9818 .indent_guides
9819 .enabled
9820 });
9821 self.show_indent_guides = Some(!currently_enabled);
9822 cx.notify();
9823 }
9824
9825 fn should_show_indent_guides(&self) -> Option<bool> {
9826 self.show_indent_guides
9827 }
9828
9829 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9830 let mut editor_settings = EditorSettings::get_global(cx).clone();
9831 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9832 EditorSettings::override_global(editor_settings, cx);
9833 }
9834
9835 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9836 self.show_gutter = show_gutter;
9837 cx.notify();
9838 }
9839
9840 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
9841 self.show_line_numbers = Some(show_line_numbers);
9842 cx.notify();
9843 }
9844
9845 pub fn set_show_git_diff_gutter(
9846 &mut self,
9847 show_git_diff_gutter: bool,
9848 cx: &mut ViewContext<Self>,
9849 ) {
9850 self.show_git_diff_gutter = Some(show_git_diff_gutter);
9851 cx.notify();
9852 }
9853
9854 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
9855 self.show_code_actions = Some(show_code_actions);
9856 cx.notify();
9857 }
9858
9859 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
9860 self.show_wrap_guides = Some(show_wrap_guides);
9861 cx.notify();
9862 }
9863
9864 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
9865 self.show_indent_guides = Some(show_indent_guides);
9866 cx.notify();
9867 }
9868
9869 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9870 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9871 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9872 cx.reveal_path(&file.abs_path(cx));
9873 }
9874 }
9875 }
9876
9877 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9878 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9879 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9880 if let Some(path) = file.abs_path(cx).to_str() {
9881 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9882 }
9883 }
9884 }
9885 }
9886
9887 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9888 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9889 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9890 if let Some(path) = file.path().to_str() {
9891 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9892 }
9893 }
9894 }
9895 }
9896
9897 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9898 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9899
9900 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9901 self.start_git_blame(true, cx);
9902 }
9903
9904 cx.notify();
9905 }
9906
9907 pub fn toggle_git_blame_inline(
9908 &mut self,
9909 _: &ToggleGitBlameInline,
9910 cx: &mut ViewContext<Self>,
9911 ) {
9912 self.toggle_git_blame_inline_internal(true, cx);
9913 cx.notify();
9914 }
9915
9916 pub fn git_blame_inline_enabled(&self) -> bool {
9917 self.git_blame_inline_enabled
9918 }
9919
9920 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9921 if let Some(project) = self.project.as_ref() {
9922 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9923 return;
9924 };
9925
9926 if buffer.read(cx).file().is_none() {
9927 return;
9928 }
9929
9930 let focused = self.focus_handle(cx).contains_focused(cx);
9931
9932 let project = project.clone();
9933 let blame =
9934 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9935 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9936 self.blame = Some(blame);
9937 }
9938 }
9939
9940 fn toggle_git_blame_inline_internal(
9941 &mut self,
9942 user_triggered: bool,
9943 cx: &mut ViewContext<Self>,
9944 ) {
9945 if self.git_blame_inline_enabled {
9946 self.git_blame_inline_enabled = false;
9947 self.show_git_blame_inline = false;
9948 self.show_git_blame_inline_delay_task.take();
9949 } else {
9950 self.git_blame_inline_enabled = true;
9951 self.start_git_blame_inline(user_triggered, cx);
9952 }
9953
9954 cx.notify();
9955 }
9956
9957 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9958 self.start_git_blame(user_triggered, cx);
9959
9960 if ProjectSettings::get_global(cx)
9961 .git
9962 .inline_blame_delay()
9963 .is_some()
9964 {
9965 self.start_inline_blame_timer(cx);
9966 } else {
9967 self.show_git_blame_inline = true
9968 }
9969 }
9970
9971 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9972 self.blame.as_ref()
9973 }
9974
9975 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9976 self.show_git_blame_gutter && self.has_blame_entries(cx)
9977 }
9978
9979 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9980 self.show_git_blame_inline
9981 && self.focus_handle.is_focused(cx)
9982 && !self.newest_selection_head_on_empty_line(cx)
9983 && self.has_blame_entries(cx)
9984 }
9985
9986 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9987 self.blame()
9988 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9989 }
9990
9991 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9992 let cursor_anchor = self.selections.newest_anchor().head();
9993
9994 let snapshot = self.buffer.read(cx).snapshot(cx);
9995 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9996
9997 snapshot.line_len(buffer_row) == 0
9998 }
9999
10000 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10001 let (path, selection, repo) = maybe!({
10002 let project_handle = self.project.as_ref()?.clone();
10003 let project = project_handle.read(cx);
10004
10005 let selection = self.selections.newest::<Point>(cx);
10006 let selection_range = selection.range();
10007
10008 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10009 (buffer, selection_range.start.row..selection_range.end.row)
10010 } else {
10011 let buffer_ranges = self
10012 .buffer()
10013 .read(cx)
10014 .range_to_buffer_ranges(selection_range, cx);
10015
10016 let (buffer, range, _) = if selection.reversed {
10017 buffer_ranges.first()
10018 } else {
10019 buffer_ranges.last()
10020 }?;
10021
10022 let snapshot = buffer.read(cx).snapshot();
10023 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10024 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10025 (buffer.clone(), selection)
10026 };
10027
10028 let path = buffer
10029 .read(cx)
10030 .file()?
10031 .as_local()?
10032 .path()
10033 .to_str()?
10034 .to_string();
10035 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10036 Some((path, selection, repo))
10037 })
10038 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10039
10040 const REMOTE_NAME: &str = "origin";
10041 let origin_url = repo
10042 .remote_url(REMOTE_NAME)
10043 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10044 let sha = repo
10045 .head_sha()
10046 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10047
10048 let (provider, remote) =
10049 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10050 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10051
10052 Ok(provider.build_permalink(
10053 remote,
10054 BuildPermalinkParams {
10055 sha: &sha,
10056 path: &path,
10057 selection: Some(selection),
10058 },
10059 ))
10060 }
10061
10062 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10063 let permalink = self.get_permalink_to_line(cx);
10064
10065 match permalink {
10066 Ok(permalink) => {
10067 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10068 }
10069 Err(err) => {
10070 let message = format!("Failed to copy permalink: {err}");
10071
10072 Err::<(), anyhow::Error>(err).log_err();
10073
10074 if let Some(workspace) = self.workspace() {
10075 workspace.update(cx, |workspace, cx| {
10076 struct CopyPermalinkToLine;
10077
10078 workspace.show_toast(
10079 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10080 cx,
10081 )
10082 })
10083 }
10084 }
10085 }
10086 }
10087
10088 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10089 let permalink = self.get_permalink_to_line(cx);
10090
10091 match permalink {
10092 Ok(permalink) => {
10093 cx.open_url(permalink.as_ref());
10094 }
10095 Err(err) => {
10096 let message = format!("Failed to open permalink: {err}");
10097
10098 Err::<(), anyhow::Error>(err).log_err();
10099
10100 if let Some(workspace) = self.workspace() {
10101 workspace.update(cx, |workspace, cx| {
10102 struct OpenPermalinkToLine;
10103
10104 workspace.show_toast(
10105 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10106 cx,
10107 )
10108 })
10109 }
10110 }
10111 }
10112 }
10113
10114 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10115 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10116 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10117 pub fn highlight_rows<T: 'static>(
10118 &mut self,
10119 rows: RangeInclusive<Anchor>,
10120 color: Option<Hsla>,
10121 should_autoscroll: bool,
10122 cx: &mut ViewContext<Self>,
10123 ) {
10124 let snapshot = self.buffer().read(cx).snapshot(cx);
10125 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10126 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10127 highlight
10128 .range
10129 .start()
10130 .cmp(&rows.start(), &snapshot)
10131 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10132 });
10133 match (color, existing_highlight_index) {
10134 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10135 ix,
10136 RowHighlight {
10137 index: post_inc(&mut self.highlight_order),
10138 range: rows,
10139 should_autoscroll,
10140 color,
10141 },
10142 ),
10143 (None, Ok(i)) => {
10144 row_highlights.remove(i);
10145 }
10146 }
10147 }
10148
10149 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10150 pub fn clear_row_highlights<T: 'static>(&mut self) {
10151 self.highlighted_rows.remove(&TypeId::of::<T>());
10152 }
10153
10154 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10155 pub fn highlighted_rows<T: 'static>(
10156 &self,
10157 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10158 Some(
10159 self.highlighted_rows
10160 .get(&TypeId::of::<T>())?
10161 .iter()
10162 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10163 )
10164 }
10165
10166 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10167 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10168 /// Allows to ignore certain kinds of highlights.
10169 pub fn highlighted_display_rows(
10170 &mut self,
10171 cx: &mut WindowContext,
10172 ) -> BTreeMap<DisplayRow, Hsla> {
10173 let snapshot = self.snapshot(cx);
10174 let mut used_highlight_orders = HashMap::default();
10175 self.highlighted_rows
10176 .iter()
10177 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10178 .fold(
10179 BTreeMap::<DisplayRow, Hsla>::new(),
10180 |mut unique_rows, highlight| {
10181 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10182 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10183 for row in start_row.0..=end_row.0 {
10184 let used_index =
10185 used_highlight_orders.entry(row).or_insert(highlight.index);
10186 if highlight.index >= *used_index {
10187 *used_index = highlight.index;
10188 match highlight.color {
10189 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10190 None => unique_rows.remove(&DisplayRow(row)),
10191 };
10192 }
10193 }
10194 unique_rows
10195 },
10196 )
10197 }
10198
10199 pub fn highlighted_display_row_for_autoscroll(
10200 &self,
10201 snapshot: &DisplaySnapshot,
10202 ) -> Option<DisplayRow> {
10203 self.highlighted_rows
10204 .values()
10205 .flat_map(|highlighted_rows| highlighted_rows.iter())
10206 .filter_map(|highlight| {
10207 if highlight.color.is_none() || !highlight.should_autoscroll {
10208 return None;
10209 }
10210 Some(highlight.range.start().to_display_point(&snapshot).row())
10211 })
10212 .min()
10213 }
10214
10215 pub fn set_search_within_ranges(
10216 &mut self,
10217 ranges: &[Range<Anchor>],
10218 cx: &mut ViewContext<Self>,
10219 ) {
10220 self.highlight_background::<SearchWithinRange>(
10221 ranges,
10222 |colors| colors.editor_document_highlight_read_background,
10223 cx,
10224 )
10225 }
10226
10227 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10228 self.clear_background_highlights::<SearchWithinRange>(cx);
10229 }
10230
10231 pub fn highlight_background<T: 'static>(
10232 &mut self,
10233 ranges: &[Range<Anchor>],
10234 color_fetcher: fn(&ThemeColors) -> Hsla,
10235 cx: &mut ViewContext<Self>,
10236 ) {
10237 let snapshot = self.snapshot(cx);
10238 // this is to try and catch a panic sooner
10239 for range in ranges {
10240 snapshot
10241 .buffer_snapshot
10242 .summary_for_anchor::<usize>(&range.start);
10243 snapshot
10244 .buffer_snapshot
10245 .summary_for_anchor::<usize>(&range.end);
10246 }
10247
10248 self.background_highlights
10249 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10250 self.scrollbar_marker_state.dirty = true;
10251 cx.notify();
10252 }
10253
10254 pub fn clear_background_highlights<T: 'static>(
10255 &mut self,
10256 cx: &mut ViewContext<Self>,
10257 ) -> Option<BackgroundHighlight> {
10258 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10259 if !text_highlights.1.is_empty() {
10260 self.scrollbar_marker_state.dirty = true;
10261 cx.notify();
10262 }
10263 Some(text_highlights)
10264 }
10265
10266 #[cfg(feature = "test-support")]
10267 pub fn all_text_background_highlights(
10268 &mut self,
10269 cx: &mut ViewContext<Self>,
10270 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10271 let snapshot = self.snapshot(cx);
10272 let buffer = &snapshot.buffer_snapshot;
10273 let start = buffer.anchor_before(0);
10274 let end = buffer.anchor_after(buffer.len());
10275 let theme = cx.theme().colors();
10276 self.background_highlights_in_range(start..end, &snapshot, theme)
10277 }
10278
10279 #[cfg(feature = "test-support")]
10280 pub fn search_background_highlights(
10281 &mut self,
10282 cx: &mut ViewContext<Self>,
10283 ) -> Vec<Range<Point>> {
10284 let snapshot = self.buffer().read(cx).snapshot(cx);
10285
10286 let highlights = self
10287 .background_highlights
10288 .get(&TypeId::of::<items::BufferSearchHighlights>());
10289
10290 if let Some((_color, ranges)) = highlights {
10291 ranges
10292 .iter()
10293 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10294 .collect_vec()
10295 } else {
10296 vec![]
10297 }
10298 }
10299
10300 fn document_highlights_for_position<'a>(
10301 &'a self,
10302 position: Anchor,
10303 buffer: &'a MultiBufferSnapshot,
10304 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10305 let read_highlights = self
10306 .background_highlights
10307 .get(&TypeId::of::<DocumentHighlightRead>())
10308 .map(|h| &h.1);
10309 let write_highlights = self
10310 .background_highlights
10311 .get(&TypeId::of::<DocumentHighlightWrite>())
10312 .map(|h| &h.1);
10313 let left_position = position.bias_left(buffer);
10314 let right_position = position.bias_right(buffer);
10315 read_highlights
10316 .into_iter()
10317 .chain(write_highlights)
10318 .flat_map(move |ranges| {
10319 let start_ix = match ranges.binary_search_by(|probe| {
10320 let cmp = probe.end.cmp(&left_position, buffer);
10321 if cmp.is_ge() {
10322 Ordering::Greater
10323 } else {
10324 Ordering::Less
10325 }
10326 }) {
10327 Ok(i) | Err(i) => i,
10328 };
10329
10330 ranges[start_ix..]
10331 .iter()
10332 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10333 })
10334 }
10335
10336 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10337 self.background_highlights
10338 .get(&TypeId::of::<T>())
10339 .map_or(false, |(_, highlights)| !highlights.is_empty())
10340 }
10341
10342 pub fn background_highlights_in_range(
10343 &self,
10344 search_range: Range<Anchor>,
10345 display_snapshot: &DisplaySnapshot,
10346 theme: &ThemeColors,
10347 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10348 let mut results = Vec::new();
10349 for (color_fetcher, ranges) in self.background_highlights.values() {
10350 let color = color_fetcher(theme);
10351 let start_ix = match ranges.binary_search_by(|probe| {
10352 let cmp = probe
10353 .end
10354 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10355 if cmp.is_gt() {
10356 Ordering::Greater
10357 } else {
10358 Ordering::Less
10359 }
10360 }) {
10361 Ok(i) | Err(i) => i,
10362 };
10363 for range in &ranges[start_ix..] {
10364 if range
10365 .start
10366 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10367 .is_ge()
10368 {
10369 break;
10370 }
10371
10372 let start = range.start.to_display_point(&display_snapshot);
10373 let end = range.end.to_display_point(&display_snapshot);
10374 results.push((start..end, color))
10375 }
10376 }
10377 results
10378 }
10379
10380 pub fn background_highlight_row_ranges<T: 'static>(
10381 &self,
10382 search_range: Range<Anchor>,
10383 display_snapshot: &DisplaySnapshot,
10384 count: usize,
10385 ) -> Vec<RangeInclusive<DisplayPoint>> {
10386 let mut results = Vec::new();
10387 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10388 return vec![];
10389 };
10390
10391 let start_ix = match ranges.binary_search_by(|probe| {
10392 let cmp = probe
10393 .end
10394 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10395 if cmp.is_gt() {
10396 Ordering::Greater
10397 } else {
10398 Ordering::Less
10399 }
10400 }) {
10401 Ok(i) | Err(i) => i,
10402 };
10403 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10404 if let (Some(start_display), Some(end_display)) = (start, end) {
10405 results.push(
10406 start_display.to_display_point(display_snapshot)
10407 ..=end_display.to_display_point(display_snapshot),
10408 );
10409 }
10410 };
10411 let mut start_row: Option<Point> = None;
10412 let mut end_row: Option<Point> = None;
10413 if ranges.len() > count {
10414 return Vec::new();
10415 }
10416 for range in &ranges[start_ix..] {
10417 if range
10418 .start
10419 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10420 .is_ge()
10421 {
10422 break;
10423 }
10424 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10425 if let Some(current_row) = &end_row {
10426 if end.row == current_row.row {
10427 continue;
10428 }
10429 }
10430 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10431 if start_row.is_none() {
10432 assert_eq!(end_row, None);
10433 start_row = Some(start);
10434 end_row = Some(end);
10435 continue;
10436 }
10437 if let Some(current_end) = end_row.as_mut() {
10438 if start.row > current_end.row + 1 {
10439 push_region(start_row, end_row);
10440 start_row = Some(start);
10441 end_row = Some(end);
10442 } else {
10443 // Merge two hunks.
10444 *current_end = end;
10445 }
10446 } else {
10447 unreachable!();
10448 }
10449 }
10450 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10451 push_region(start_row, end_row);
10452 results
10453 }
10454
10455 /// Get the text ranges corresponding to the redaction query
10456 pub fn redacted_ranges(
10457 &self,
10458 search_range: Range<Anchor>,
10459 display_snapshot: &DisplaySnapshot,
10460 cx: &WindowContext,
10461 ) -> Vec<Range<DisplayPoint>> {
10462 display_snapshot
10463 .buffer_snapshot
10464 .redacted_ranges(search_range, |file| {
10465 if let Some(file) = file {
10466 file.is_private()
10467 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10468 } else {
10469 false
10470 }
10471 })
10472 .map(|range| {
10473 range.start.to_display_point(display_snapshot)
10474 ..range.end.to_display_point(display_snapshot)
10475 })
10476 .collect()
10477 }
10478
10479 pub fn highlight_text<T: 'static>(
10480 &mut self,
10481 ranges: Vec<Range<Anchor>>,
10482 style: HighlightStyle,
10483 cx: &mut ViewContext<Self>,
10484 ) {
10485 self.display_map.update(cx, |map, _| {
10486 map.highlight_text(TypeId::of::<T>(), ranges, style)
10487 });
10488 cx.notify();
10489 }
10490
10491 pub(crate) fn highlight_inlays<T: 'static>(
10492 &mut self,
10493 highlights: Vec<InlayHighlight>,
10494 style: HighlightStyle,
10495 cx: &mut ViewContext<Self>,
10496 ) {
10497 self.display_map.update(cx, |map, _| {
10498 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10499 });
10500 cx.notify();
10501 }
10502
10503 pub fn text_highlights<'a, T: 'static>(
10504 &'a self,
10505 cx: &'a AppContext,
10506 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10507 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10508 }
10509
10510 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10511 let cleared = self
10512 .display_map
10513 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10514 if cleared {
10515 cx.notify();
10516 }
10517 }
10518
10519 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10520 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10521 && self.focus_handle.is_focused(cx)
10522 }
10523
10524 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10525 cx.notify();
10526 }
10527
10528 fn on_buffer_event(
10529 &mut self,
10530 multibuffer: Model<MultiBuffer>,
10531 event: &multi_buffer::Event,
10532 cx: &mut ViewContext<Self>,
10533 ) {
10534 match event {
10535 multi_buffer::Event::Edited {
10536 singleton_buffer_edited,
10537 } => {
10538 self.scrollbar_marker_state.dirty = true;
10539 self.active_indent_guides_state.dirty = true;
10540 self.refresh_active_diagnostics(cx);
10541 self.refresh_code_actions(cx);
10542 if self.has_active_inline_completion(cx) {
10543 self.update_visible_inline_completion(cx);
10544 }
10545 cx.emit(EditorEvent::BufferEdited);
10546 cx.emit(SearchEvent::MatchesInvalidated);
10547
10548 if *singleton_buffer_edited {
10549 if let Some(project) = &self.project {
10550 let project = project.read(cx);
10551 let languages_affected = multibuffer
10552 .read(cx)
10553 .all_buffers()
10554 .into_iter()
10555 .filter_map(|buffer| {
10556 let buffer = buffer.read(cx);
10557 let language = buffer.language()?;
10558 if project.is_local()
10559 && project.language_servers_for_buffer(buffer, cx).count() == 0
10560 {
10561 None
10562 } else {
10563 Some(language)
10564 }
10565 })
10566 .cloned()
10567 .collect::<HashSet<_>>();
10568 if !languages_affected.is_empty() {
10569 self.refresh_inlay_hints(
10570 InlayHintRefreshReason::BufferEdited(languages_affected),
10571 cx,
10572 );
10573 }
10574 }
10575 }
10576
10577 let Some(project) = &self.project else { return };
10578 let telemetry = project.read(cx).client().telemetry().clone();
10579 telemetry.log_edit_event("editor");
10580 }
10581 multi_buffer::Event::ExcerptsAdded {
10582 buffer,
10583 predecessor,
10584 excerpts,
10585 } => {
10586 self.tasks_update_task = Some(self.refresh_runnables(cx));
10587 cx.emit(EditorEvent::ExcerptsAdded {
10588 buffer: buffer.clone(),
10589 predecessor: *predecessor,
10590 excerpts: excerpts.clone(),
10591 });
10592 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10593 }
10594 multi_buffer::Event::ExcerptsRemoved { ids } => {
10595 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10596 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10597 }
10598 multi_buffer::Event::Reparsed => {
10599 self.tasks_update_task = Some(self.refresh_runnables(cx));
10600
10601 cx.emit(EditorEvent::Reparsed);
10602 }
10603 multi_buffer::Event::LanguageChanged => {
10604 cx.emit(EditorEvent::Reparsed);
10605 cx.notify();
10606 }
10607 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10608 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10609 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10610 cx.emit(EditorEvent::TitleChanged)
10611 }
10612 multi_buffer::Event::DiffBaseChanged => {
10613 self.scrollbar_marker_state.dirty = true;
10614 cx.emit(EditorEvent::DiffBaseChanged);
10615 cx.notify();
10616 }
10617 multi_buffer::Event::DiffUpdated { buffer } => {
10618 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10619 cx.notify();
10620 }
10621 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10622 multi_buffer::Event::DiagnosticsUpdated => {
10623 self.refresh_active_diagnostics(cx);
10624 self.scrollbar_marker_state.dirty = true;
10625 cx.notify();
10626 }
10627 _ => {}
10628 };
10629 }
10630
10631 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10632 cx.notify();
10633 }
10634
10635 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10636 self.refresh_inline_completion(true, cx);
10637 self.refresh_inlay_hints(
10638 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10639 self.selections.newest_anchor().head(),
10640 &self.buffer.read(cx).snapshot(cx),
10641 cx,
10642 )),
10643 cx,
10644 );
10645 let editor_settings = EditorSettings::get_global(cx);
10646 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10647 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10648
10649 if self.mode == EditorMode::Full {
10650 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10651 if self.git_blame_inline_enabled != inline_blame_enabled {
10652 self.toggle_git_blame_inline_internal(false, cx);
10653 }
10654 }
10655
10656 cx.notify();
10657 }
10658
10659 pub fn set_searchable(&mut self, searchable: bool) {
10660 self.searchable = searchable;
10661 }
10662
10663 pub fn searchable(&self) -> bool {
10664 self.searchable
10665 }
10666
10667 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10668 self.open_excerpts_common(true, cx)
10669 }
10670
10671 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10672 self.open_excerpts_common(false, cx)
10673 }
10674
10675 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10676 let buffer = self.buffer.read(cx);
10677 if buffer.is_singleton() {
10678 cx.propagate();
10679 return;
10680 }
10681
10682 let Some(workspace) = self.workspace() else {
10683 cx.propagate();
10684 return;
10685 };
10686
10687 let mut new_selections_by_buffer = HashMap::default();
10688 for selection in self.selections.all::<usize>(cx) {
10689 for (buffer, mut range, _) in
10690 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10691 {
10692 if selection.reversed {
10693 mem::swap(&mut range.start, &mut range.end);
10694 }
10695 new_selections_by_buffer
10696 .entry(buffer)
10697 .or_insert(Vec::new())
10698 .push(range)
10699 }
10700 }
10701
10702 // We defer the pane interaction because we ourselves are a workspace item
10703 // and activating a new item causes the pane to call a method on us reentrantly,
10704 // which panics if we're on the stack.
10705 cx.window_context().defer(move |cx| {
10706 workspace.update(cx, |workspace, cx| {
10707 let pane = if split {
10708 workspace.adjacent_pane(cx)
10709 } else {
10710 workspace.active_pane().clone()
10711 };
10712
10713 for (buffer, ranges) in new_selections_by_buffer {
10714 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10715 editor.update(cx, |editor, cx| {
10716 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10717 s.select_ranges(ranges);
10718 });
10719 });
10720 }
10721 })
10722 });
10723 }
10724
10725 fn jump(
10726 &mut self,
10727 path: ProjectPath,
10728 position: Point,
10729 anchor: language::Anchor,
10730 offset_from_top: u32,
10731 cx: &mut ViewContext<Self>,
10732 ) {
10733 let workspace = self.workspace();
10734 cx.spawn(|_, mut cx| async move {
10735 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10736 let editor = workspace.update(&mut cx, |workspace, cx| {
10737 // Reset the preview item id before opening the new item
10738 workspace.active_pane().update(cx, |pane, cx| {
10739 pane.set_preview_item_id(None, cx);
10740 });
10741 workspace.open_path_preview(path, None, true, true, cx)
10742 })?;
10743 let editor = editor
10744 .await?
10745 .downcast::<Editor>()
10746 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10747 .downgrade();
10748 editor.update(&mut cx, |editor, cx| {
10749 let buffer = editor
10750 .buffer()
10751 .read(cx)
10752 .as_singleton()
10753 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10754 let buffer = buffer.read(cx);
10755 let cursor = if buffer.can_resolve(&anchor) {
10756 language::ToPoint::to_point(&anchor, buffer)
10757 } else {
10758 buffer.clip_point(position, Bias::Left)
10759 };
10760
10761 let nav_history = editor.nav_history.take();
10762 editor.change_selections(
10763 Some(Autoscroll::top_relative(offset_from_top as usize)),
10764 cx,
10765 |s| {
10766 s.select_ranges([cursor..cursor]);
10767 },
10768 );
10769 editor.nav_history = nav_history;
10770
10771 anyhow::Ok(())
10772 })??;
10773
10774 anyhow::Ok(())
10775 })
10776 .detach_and_log_err(cx);
10777 }
10778
10779 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10780 let snapshot = self.buffer.read(cx).read(cx);
10781 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10782 Some(
10783 ranges
10784 .iter()
10785 .map(move |range| {
10786 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10787 })
10788 .collect(),
10789 )
10790 }
10791
10792 fn selection_replacement_ranges(
10793 &self,
10794 range: Range<OffsetUtf16>,
10795 cx: &AppContext,
10796 ) -> Vec<Range<OffsetUtf16>> {
10797 let selections = self.selections.all::<OffsetUtf16>(cx);
10798 let newest_selection = selections
10799 .iter()
10800 .max_by_key(|selection| selection.id)
10801 .unwrap();
10802 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10803 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10804 let snapshot = self.buffer.read(cx).read(cx);
10805 selections
10806 .into_iter()
10807 .map(|mut selection| {
10808 selection.start.0 =
10809 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10810 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10811 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10812 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10813 })
10814 .collect()
10815 }
10816
10817 fn report_editor_event(
10818 &self,
10819 operation: &'static str,
10820 file_extension: Option<String>,
10821 cx: &AppContext,
10822 ) {
10823 if cfg!(any(test, feature = "test-support")) {
10824 return;
10825 }
10826
10827 let Some(project) = &self.project else { return };
10828
10829 // If None, we are in a file without an extension
10830 let file = self
10831 .buffer
10832 .read(cx)
10833 .as_singleton()
10834 .and_then(|b| b.read(cx).file());
10835 let file_extension = file_extension.or(file
10836 .as_ref()
10837 .and_then(|file| Path::new(file.file_name(cx)).extension())
10838 .and_then(|e| e.to_str())
10839 .map(|a| a.to_string()));
10840
10841 let vim_mode = cx
10842 .global::<SettingsStore>()
10843 .raw_user_settings()
10844 .get("vim_mode")
10845 == Some(&serde_json::Value::Bool(true));
10846
10847 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10848 == language::language_settings::InlineCompletionProvider::Copilot;
10849 let copilot_enabled_for_language = self
10850 .buffer
10851 .read(cx)
10852 .settings_at(0, cx)
10853 .show_inline_completions;
10854
10855 let telemetry = project.read(cx).client().telemetry().clone();
10856 telemetry.report_editor_event(
10857 file_extension,
10858 vim_mode,
10859 operation,
10860 copilot_enabled,
10861 copilot_enabled_for_language,
10862 )
10863 }
10864
10865 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10866 /// with each line being an array of {text, highlight} objects.
10867 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10868 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10869 return;
10870 };
10871
10872 #[derive(Serialize)]
10873 struct Chunk<'a> {
10874 text: String,
10875 highlight: Option<&'a str>,
10876 }
10877
10878 let snapshot = buffer.read(cx).snapshot();
10879 let range = self
10880 .selected_text_range(cx)
10881 .and_then(|selected_range| {
10882 if selected_range.is_empty() {
10883 None
10884 } else {
10885 Some(selected_range)
10886 }
10887 })
10888 .unwrap_or_else(|| 0..snapshot.len());
10889
10890 let chunks = snapshot.chunks(range, true);
10891 let mut lines = Vec::new();
10892 let mut line: VecDeque<Chunk> = VecDeque::new();
10893
10894 let Some(style) = self.style.as_ref() else {
10895 return;
10896 };
10897
10898 for chunk in chunks {
10899 let highlight = chunk
10900 .syntax_highlight_id
10901 .and_then(|id| id.name(&style.syntax));
10902 let mut chunk_lines = chunk.text.split('\n').peekable();
10903 while let Some(text) = chunk_lines.next() {
10904 let mut merged_with_last_token = false;
10905 if let Some(last_token) = line.back_mut() {
10906 if last_token.highlight == highlight {
10907 last_token.text.push_str(text);
10908 merged_with_last_token = true;
10909 }
10910 }
10911
10912 if !merged_with_last_token {
10913 line.push_back(Chunk {
10914 text: text.into(),
10915 highlight,
10916 });
10917 }
10918
10919 if chunk_lines.peek().is_some() {
10920 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10921 line.pop_front();
10922 }
10923 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10924 line.pop_back();
10925 }
10926
10927 lines.push(mem::take(&mut line));
10928 }
10929 }
10930 }
10931
10932 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10933 return;
10934 };
10935 cx.write_to_clipboard(ClipboardItem::new(lines));
10936 }
10937
10938 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10939 &self.inlay_hint_cache
10940 }
10941
10942 pub fn replay_insert_event(
10943 &mut self,
10944 text: &str,
10945 relative_utf16_range: Option<Range<isize>>,
10946 cx: &mut ViewContext<Self>,
10947 ) {
10948 if !self.input_enabled {
10949 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10950 return;
10951 }
10952 if let Some(relative_utf16_range) = relative_utf16_range {
10953 let selections = self.selections.all::<OffsetUtf16>(cx);
10954 self.change_selections(None, cx, |s| {
10955 let new_ranges = selections.into_iter().map(|range| {
10956 let start = OffsetUtf16(
10957 range
10958 .head()
10959 .0
10960 .saturating_add_signed(relative_utf16_range.start),
10961 );
10962 let end = OffsetUtf16(
10963 range
10964 .head()
10965 .0
10966 .saturating_add_signed(relative_utf16_range.end),
10967 );
10968 start..end
10969 });
10970 s.select_ranges(new_ranges);
10971 });
10972 }
10973
10974 self.handle_input(text, cx);
10975 }
10976
10977 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10978 let Some(project) = self.project.as_ref() else {
10979 return false;
10980 };
10981 let project = project.read(cx);
10982
10983 let mut supports = false;
10984 self.buffer().read(cx).for_each_buffer(|buffer| {
10985 if !supports {
10986 supports = project
10987 .language_servers_for_buffer(buffer.read(cx), cx)
10988 .any(
10989 |(_, server)| match server.capabilities().inlay_hint_provider {
10990 Some(lsp::OneOf::Left(enabled)) => enabled,
10991 Some(lsp::OneOf::Right(_)) => true,
10992 None => false,
10993 },
10994 )
10995 }
10996 });
10997 supports
10998 }
10999
11000 pub fn focus(&self, cx: &mut WindowContext) {
11001 cx.focus(&self.focus_handle)
11002 }
11003
11004 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11005 self.focus_handle.is_focused(cx)
11006 }
11007
11008 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11009 cx.emit(EditorEvent::Focused);
11010 if let Some(rename) = self.pending_rename.as_ref() {
11011 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
11012 cx.focus(&rename_editor_focus_handle);
11013 } else {
11014 if let Some(blame) = self.blame.as_ref() {
11015 blame.update(cx, GitBlame::focus)
11016 }
11017
11018 self.blink_manager.update(cx, BlinkManager::enable);
11019 self.show_cursor_names(cx);
11020 self.buffer.update(cx, |buffer, cx| {
11021 buffer.finalize_last_transaction(cx);
11022 if self.leader_peer_id.is_none() {
11023 buffer.set_active_selections(
11024 &self.selections.disjoint_anchors(),
11025 self.selections.line_mode,
11026 self.cursor_shape,
11027 cx,
11028 );
11029 }
11030 });
11031 }
11032 }
11033
11034 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11035 self.blink_manager.update(cx, BlinkManager::disable);
11036 self.buffer
11037 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11038
11039 if let Some(blame) = self.blame.as_ref() {
11040 blame.update(cx, GitBlame::blur)
11041 }
11042 self.hide_context_menu(cx);
11043 hide_hover(self, cx);
11044 cx.emit(EditorEvent::Blurred);
11045 cx.notify();
11046 }
11047
11048 pub fn register_action<A: Action>(
11049 &mut self,
11050 listener: impl Fn(&A, &mut WindowContext) + 'static,
11051 ) -> &mut Self {
11052 let listener = Arc::new(listener);
11053
11054 self.editor_actions.push(Box::new(move |cx| {
11055 let _view = cx.view().clone();
11056 let cx = cx.window_context();
11057 let listener = listener.clone();
11058 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11059 let action = action.downcast_ref().unwrap();
11060 if phase == DispatchPhase::Bubble {
11061 listener(action, cx)
11062 }
11063 })
11064 }));
11065 self
11066 }
11067}
11068
11069fn hunks_for_selections(
11070 multi_buffer_snapshot: &MultiBufferSnapshot,
11071 selections: &[Selection<Anchor>],
11072) -> Vec<DiffHunk<MultiBufferRow>> {
11073 let mut hunks = Vec::with_capacity(selections.len());
11074 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11075 HashMap::default();
11076 let buffer_rows_for_selections = selections.iter().map(|selection| {
11077 let head = selection.head();
11078 let tail = selection.tail();
11079 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11080 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11081 if start > end {
11082 end..start
11083 } else {
11084 start..end
11085 }
11086 });
11087
11088 for selected_multi_buffer_rows in buffer_rows_for_selections {
11089 let query_rows =
11090 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11091 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11092 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11093 // when the caret is just above or just below the deleted hunk.
11094 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11095 let related_to_selection = if allow_adjacent {
11096 hunk.associated_range.overlaps(&query_rows)
11097 || hunk.associated_range.start == query_rows.end
11098 || hunk.associated_range.end == query_rows.start
11099 } else {
11100 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11101 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11102 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11103 || selected_multi_buffer_rows.end == hunk.associated_range.start
11104 };
11105 if related_to_selection {
11106 if !processed_buffer_rows
11107 .entry(hunk.buffer_id)
11108 .or_default()
11109 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11110 {
11111 continue;
11112 }
11113 hunks.push(hunk);
11114 }
11115 }
11116 }
11117
11118 hunks
11119}
11120
11121pub trait CollaborationHub {
11122 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11123 fn user_participant_indices<'a>(
11124 &self,
11125 cx: &'a AppContext,
11126 ) -> &'a HashMap<u64, ParticipantIndex>;
11127 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11128}
11129
11130impl CollaborationHub for Model<Project> {
11131 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11132 self.read(cx).collaborators()
11133 }
11134
11135 fn user_participant_indices<'a>(
11136 &self,
11137 cx: &'a AppContext,
11138 ) -> &'a HashMap<u64, ParticipantIndex> {
11139 self.read(cx).user_store().read(cx).participant_indices()
11140 }
11141
11142 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11143 let this = self.read(cx);
11144 let user_ids = this.collaborators().values().map(|c| c.user_id);
11145 this.user_store().read_with(cx, |user_store, cx| {
11146 user_store.participant_names(user_ids, cx)
11147 })
11148 }
11149}
11150
11151pub trait CompletionProvider {
11152 fn completions(
11153 &self,
11154 buffer: &Model<Buffer>,
11155 buffer_position: text::Anchor,
11156 cx: &mut ViewContext<Editor>,
11157 ) -> Task<Result<Vec<Completion>>>;
11158
11159 fn resolve_completions(
11160 &self,
11161 buffer: Model<Buffer>,
11162 completion_indices: Vec<usize>,
11163 completions: Arc<RwLock<Box<[Completion]>>>,
11164 cx: &mut ViewContext<Editor>,
11165 ) -> Task<Result<bool>>;
11166
11167 fn apply_additional_edits_for_completion(
11168 &self,
11169 buffer: Model<Buffer>,
11170 completion: Completion,
11171 push_to_history: bool,
11172 cx: &mut ViewContext<Editor>,
11173 ) -> Task<Result<Option<language::Transaction>>>;
11174
11175 fn is_completion_trigger(
11176 &self,
11177 buffer: &Model<Buffer>,
11178 position: language::Anchor,
11179 text: &str,
11180 trigger_in_words: bool,
11181 cx: &mut ViewContext<Editor>,
11182 ) -> bool;
11183}
11184
11185impl CompletionProvider for Model<Project> {
11186 fn completions(
11187 &self,
11188 buffer: &Model<Buffer>,
11189 buffer_position: text::Anchor,
11190 cx: &mut ViewContext<Editor>,
11191 ) -> Task<Result<Vec<Completion>>> {
11192 self.update(cx, |project, cx| {
11193 project.completions(&buffer, buffer_position, cx)
11194 })
11195 }
11196
11197 fn resolve_completions(
11198 &self,
11199 buffer: Model<Buffer>,
11200 completion_indices: Vec<usize>,
11201 completions: Arc<RwLock<Box<[Completion]>>>,
11202 cx: &mut ViewContext<Editor>,
11203 ) -> Task<Result<bool>> {
11204 self.update(cx, |project, cx| {
11205 project.resolve_completions(buffer, completion_indices, completions, cx)
11206 })
11207 }
11208
11209 fn apply_additional_edits_for_completion(
11210 &self,
11211 buffer: Model<Buffer>,
11212 completion: Completion,
11213 push_to_history: bool,
11214 cx: &mut ViewContext<Editor>,
11215 ) -> Task<Result<Option<language::Transaction>>> {
11216 self.update(cx, |project, cx| {
11217 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11218 })
11219 }
11220
11221 fn is_completion_trigger(
11222 &self,
11223 buffer: &Model<Buffer>,
11224 position: language::Anchor,
11225 text: &str,
11226 trigger_in_words: bool,
11227 cx: &mut ViewContext<Editor>,
11228 ) -> bool {
11229 if !EditorSettings::get_global(cx).show_completions_on_input {
11230 return false;
11231 }
11232
11233 let mut chars = text.chars();
11234 let char = if let Some(char) = chars.next() {
11235 char
11236 } else {
11237 return false;
11238 };
11239 if chars.next().is_some() {
11240 return false;
11241 }
11242
11243 let buffer = buffer.read(cx);
11244 let scope = buffer.snapshot().language_scope_at(position);
11245 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11246 return true;
11247 }
11248
11249 buffer
11250 .completion_triggers()
11251 .iter()
11252 .any(|string| string == text)
11253 }
11254}
11255
11256fn inlay_hint_settings(
11257 location: Anchor,
11258 snapshot: &MultiBufferSnapshot,
11259 cx: &mut ViewContext<'_, Editor>,
11260) -> InlayHintSettings {
11261 let file = snapshot.file_at(location);
11262 let language = snapshot.language_at(location);
11263 let settings = all_language_settings(file, cx);
11264 settings
11265 .language(language.map(|l| l.name()).as_deref())
11266 .inlay_hints
11267}
11268
11269fn consume_contiguous_rows(
11270 contiguous_row_selections: &mut Vec<Selection<Point>>,
11271 selection: &Selection<Point>,
11272 display_map: &DisplaySnapshot,
11273 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11274) -> (MultiBufferRow, MultiBufferRow) {
11275 contiguous_row_selections.push(selection.clone());
11276 let start_row = MultiBufferRow(selection.start.row);
11277 let mut end_row = ending_row(selection, display_map);
11278
11279 while let Some(next_selection) = selections.peek() {
11280 if next_selection.start.row <= end_row.0 {
11281 end_row = ending_row(next_selection, display_map);
11282 contiguous_row_selections.push(selections.next().unwrap().clone());
11283 } else {
11284 break;
11285 }
11286 }
11287 (start_row, end_row)
11288}
11289
11290fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11291 if next_selection.end.column > 0 || next_selection.is_empty() {
11292 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11293 } else {
11294 MultiBufferRow(next_selection.end.row)
11295 }
11296}
11297
11298impl EditorSnapshot {
11299 pub fn remote_selections_in_range<'a>(
11300 &'a self,
11301 range: &'a Range<Anchor>,
11302 collaboration_hub: &dyn CollaborationHub,
11303 cx: &'a AppContext,
11304 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11305 let participant_names = collaboration_hub.user_names(cx);
11306 let participant_indices = collaboration_hub.user_participant_indices(cx);
11307 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11308 let collaborators_by_replica_id = collaborators_by_peer_id
11309 .iter()
11310 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11311 .collect::<HashMap<_, _>>();
11312 self.buffer_snapshot
11313 .remote_selections_in_range(range)
11314 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11315 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11316 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11317 let user_name = participant_names.get(&collaborator.user_id).cloned();
11318 Some(RemoteSelection {
11319 replica_id,
11320 selection,
11321 cursor_shape,
11322 line_mode,
11323 participant_index,
11324 peer_id: collaborator.peer_id,
11325 user_name,
11326 })
11327 })
11328 }
11329
11330 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11331 self.display_snapshot.buffer_snapshot.language_at(position)
11332 }
11333
11334 pub fn is_focused(&self) -> bool {
11335 self.is_focused
11336 }
11337
11338 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11339 self.placeholder_text.as_ref()
11340 }
11341
11342 pub fn scroll_position(&self) -> gpui::Point<f32> {
11343 self.scroll_anchor.scroll_position(&self.display_snapshot)
11344 }
11345
11346 pub fn gutter_dimensions(
11347 &self,
11348 font_id: FontId,
11349 font_size: Pixels,
11350 em_width: Pixels,
11351 max_line_number_width: Pixels,
11352 cx: &AppContext,
11353 ) -> GutterDimensions {
11354 if !self.show_gutter {
11355 return GutterDimensions::default();
11356 }
11357 let descent = cx.text_system().descent(font_id, font_size);
11358
11359 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11360 matches!(
11361 ProjectSettings::get_global(cx).git.git_gutter,
11362 Some(GitGutterSetting::TrackedFiles)
11363 )
11364 });
11365 let gutter_settings = EditorSettings::get_global(cx).gutter;
11366 let show_line_numbers = self
11367 .show_line_numbers
11368 .unwrap_or_else(|| gutter_settings.line_numbers);
11369 let line_gutter_width = if show_line_numbers {
11370 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11371 let min_width_for_number_on_gutter = em_width * 4.0;
11372 max_line_number_width.max(min_width_for_number_on_gutter)
11373 } else {
11374 0.0.into()
11375 };
11376
11377 let show_code_actions = self
11378 .show_code_actions
11379 .unwrap_or_else(|| gutter_settings.code_actions);
11380
11381 let git_blame_entries_width = self
11382 .render_git_blame_gutter
11383 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11384
11385 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11386 left_padding += if show_code_actions {
11387 em_width * 3.0
11388 } else if show_git_gutter && show_line_numbers {
11389 em_width * 2.0
11390 } else if show_git_gutter || show_line_numbers {
11391 em_width
11392 } else {
11393 px(0.)
11394 };
11395
11396 let right_padding = if gutter_settings.folds && show_line_numbers {
11397 em_width * 4.0
11398 } else if gutter_settings.folds {
11399 em_width * 3.0
11400 } else if show_line_numbers {
11401 em_width
11402 } else {
11403 px(0.)
11404 };
11405
11406 GutterDimensions {
11407 left_padding,
11408 right_padding,
11409 width: line_gutter_width + left_padding + right_padding,
11410 margin: -descent,
11411 git_blame_entries_width,
11412 }
11413 }
11414
11415 pub fn render_fold_toggle(
11416 &self,
11417 buffer_row: MultiBufferRow,
11418 row_contains_cursor: bool,
11419 editor: View<Editor>,
11420 cx: &mut WindowContext,
11421 ) -> Option<AnyElement> {
11422 let folded = self.is_line_folded(buffer_row);
11423
11424 if let Some(flap) = self
11425 .flap_snapshot
11426 .query_row(buffer_row, &self.buffer_snapshot)
11427 {
11428 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11429 if folded {
11430 editor.update(cx, |editor, cx| {
11431 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11432 });
11433 } else {
11434 editor.update(cx, |editor, cx| {
11435 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11436 });
11437 }
11438 });
11439
11440 Some((flap.render_toggle)(
11441 buffer_row,
11442 folded,
11443 toggle_callback,
11444 cx,
11445 ))
11446 } else if folded
11447 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11448 {
11449 Some(
11450 IconButton::new(
11451 ("indent-fold-indicator", buffer_row.0),
11452 ui::IconName::ChevronDown,
11453 )
11454 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
11455 if folded {
11456 this.unfold_at(&UnfoldAt { buffer_row }, cx);
11457 } else {
11458 this.fold_at(&FoldAt { buffer_row }, cx);
11459 }
11460 }))
11461 .icon_color(ui::Color::Muted)
11462 .icon_size(ui::IconSize::Small)
11463 .selected(folded)
11464 .selected_icon(ui::IconName::ChevronRight)
11465 .size(ui::ButtonSize::None)
11466 .into_any_element(),
11467 )
11468 } else {
11469 None
11470 }
11471 }
11472
11473 pub fn render_flap_trailer(
11474 &self,
11475 buffer_row: MultiBufferRow,
11476 cx: &mut WindowContext,
11477 ) -> Option<AnyElement> {
11478 let folded = self.is_line_folded(buffer_row);
11479 let flap = self
11480 .flap_snapshot
11481 .query_row(buffer_row, &self.buffer_snapshot)?;
11482 Some((flap.render_trailer)(buffer_row, folded, cx))
11483 }
11484}
11485
11486impl Deref for EditorSnapshot {
11487 type Target = DisplaySnapshot;
11488
11489 fn deref(&self) -> &Self::Target {
11490 &self.display_snapshot
11491 }
11492}
11493
11494#[derive(Clone, Debug, PartialEq, Eq)]
11495pub enum EditorEvent {
11496 InputIgnored {
11497 text: Arc<str>,
11498 },
11499 InputHandled {
11500 utf16_range_to_replace: Option<Range<isize>>,
11501 text: Arc<str>,
11502 },
11503 ExcerptsAdded {
11504 buffer: Model<Buffer>,
11505 predecessor: ExcerptId,
11506 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11507 },
11508 ExcerptsRemoved {
11509 ids: Vec<ExcerptId>,
11510 },
11511 BufferEdited,
11512 Edited,
11513 Reparsed,
11514 Focused,
11515 Blurred,
11516 DirtyChanged,
11517 Saved,
11518 TitleChanged,
11519 DiffBaseChanged,
11520 SelectionsChanged {
11521 local: bool,
11522 },
11523 ScrollPositionChanged {
11524 local: bool,
11525 autoscroll: bool,
11526 },
11527 Closed,
11528 TransactionUndone {
11529 transaction_id: clock::Lamport,
11530 },
11531 TransactionBegun {
11532 transaction_id: clock::Lamport,
11533 },
11534}
11535
11536impl EventEmitter<EditorEvent> for Editor {}
11537
11538impl FocusableView for Editor {
11539 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11540 self.focus_handle.clone()
11541 }
11542}
11543
11544impl Render for Editor {
11545 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11546 let settings = ThemeSettings::get_global(cx);
11547
11548 let text_style = match self.mode {
11549 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11550 color: cx.theme().colors().editor_foreground,
11551 font_family: settings.ui_font.family.clone(),
11552 font_features: settings.ui_font.features.clone(),
11553 font_size: rems(0.875).into(),
11554 font_weight: settings.ui_font.weight,
11555 font_style: FontStyle::Normal,
11556 line_height: relative(settings.buffer_line_height.value()),
11557 background_color: None,
11558 underline: None,
11559 strikethrough: None,
11560 white_space: WhiteSpace::Normal,
11561 },
11562 EditorMode::Full => TextStyle {
11563 color: cx.theme().colors().editor_foreground,
11564 font_family: settings.buffer_font.family.clone(),
11565 font_features: settings.buffer_font.features.clone(),
11566 font_size: settings.buffer_font_size(cx).into(),
11567 font_weight: settings.buffer_font.weight,
11568 font_style: FontStyle::Normal,
11569 line_height: relative(settings.buffer_line_height.value()),
11570 background_color: None,
11571 underline: None,
11572 strikethrough: None,
11573 white_space: WhiteSpace::Normal,
11574 },
11575 };
11576
11577 let background = match self.mode {
11578 EditorMode::SingleLine => cx.theme().system().transparent,
11579 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11580 EditorMode::Full => cx.theme().colors().editor_background,
11581 };
11582
11583 EditorElement::new(
11584 cx.view(),
11585 EditorStyle {
11586 background,
11587 local_player: cx.theme().players().local(),
11588 text: text_style,
11589 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11590 syntax: cx.theme().syntax().clone(),
11591 status: cx.theme().status().clone(),
11592 inlay_hints_style: HighlightStyle {
11593 color: Some(cx.theme().status().hint),
11594 ..HighlightStyle::default()
11595 },
11596 suggestions_style: HighlightStyle {
11597 color: Some(cx.theme().status().predictive),
11598 ..HighlightStyle::default()
11599 },
11600 },
11601 )
11602 }
11603}
11604
11605impl ViewInputHandler for Editor {
11606 fn text_for_range(
11607 &mut self,
11608 range_utf16: Range<usize>,
11609 cx: &mut ViewContext<Self>,
11610 ) -> Option<String> {
11611 Some(
11612 self.buffer
11613 .read(cx)
11614 .read(cx)
11615 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11616 .collect(),
11617 )
11618 }
11619
11620 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11621 // Prevent the IME menu from appearing when holding down an alphabetic key
11622 // while input is disabled.
11623 if !self.input_enabled {
11624 return None;
11625 }
11626
11627 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11628 Some(range.start.0..range.end.0)
11629 }
11630
11631 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11632 let snapshot = self.buffer.read(cx).read(cx);
11633 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11634 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11635 }
11636
11637 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11638 self.clear_highlights::<InputComposition>(cx);
11639 self.ime_transaction.take();
11640 }
11641
11642 fn replace_text_in_range(
11643 &mut self,
11644 range_utf16: Option<Range<usize>>,
11645 text: &str,
11646 cx: &mut ViewContext<Self>,
11647 ) {
11648 if !self.input_enabled {
11649 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11650 return;
11651 }
11652
11653 self.transact(cx, |this, cx| {
11654 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11655 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11656 Some(this.selection_replacement_ranges(range_utf16, cx))
11657 } else {
11658 this.marked_text_ranges(cx)
11659 };
11660
11661 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11662 let newest_selection_id = this.selections.newest_anchor().id;
11663 this.selections
11664 .all::<OffsetUtf16>(cx)
11665 .iter()
11666 .zip(ranges_to_replace.iter())
11667 .find_map(|(selection, range)| {
11668 if selection.id == newest_selection_id {
11669 Some(
11670 (range.start.0 as isize - selection.head().0 as isize)
11671 ..(range.end.0 as isize - selection.head().0 as isize),
11672 )
11673 } else {
11674 None
11675 }
11676 })
11677 });
11678
11679 cx.emit(EditorEvent::InputHandled {
11680 utf16_range_to_replace: range_to_replace,
11681 text: text.into(),
11682 });
11683
11684 if let Some(new_selected_ranges) = new_selected_ranges {
11685 this.change_selections(None, cx, |selections| {
11686 selections.select_ranges(new_selected_ranges)
11687 });
11688 this.backspace(&Default::default(), cx);
11689 }
11690
11691 this.handle_input(text, cx);
11692 });
11693
11694 if let Some(transaction) = self.ime_transaction {
11695 self.buffer.update(cx, |buffer, cx| {
11696 buffer.group_until_transaction(transaction, cx);
11697 });
11698 }
11699
11700 self.unmark_text(cx);
11701 }
11702
11703 fn replace_and_mark_text_in_range(
11704 &mut self,
11705 range_utf16: Option<Range<usize>>,
11706 text: &str,
11707 new_selected_range_utf16: Option<Range<usize>>,
11708 cx: &mut ViewContext<Self>,
11709 ) {
11710 if !self.input_enabled {
11711 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11712 return;
11713 }
11714
11715 let transaction = self.transact(cx, |this, cx| {
11716 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11717 let snapshot = this.buffer.read(cx).read(cx);
11718 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11719 for marked_range in &mut marked_ranges {
11720 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11721 marked_range.start.0 += relative_range_utf16.start;
11722 marked_range.start =
11723 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11724 marked_range.end =
11725 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11726 }
11727 }
11728 Some(marked_ranges)
11729 } else if let Some(range_utf16) = range_utf16 {
11730 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11731 Some(this.selection_replacement_ranges(range_utf16, cx))
11732 } else {
11733 None
11734 };
11735
11736 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11737 let newest_selection_id = this.selections.newest_anchor().id;
11738 this.selections
11739 .all::<OffsetUtf16>(cx)
11740 .iter()
11741 .zip(ranges_to_replace.iter())
11742 .find_map(|(selection, range)| {
11743 if selection.id == newest_selection_id {
11744 Some(
11745 (range.start.0 as isize - selection.head().0 as isize)
11746 ..(range.end.0 as isize - selection.head().0 as isize),
11747 )
11748 } else {
11749 None
11750 }
11751 })
11752 });
11753
11754 cx.emit(EditorEvent::InputHandled {
11755 utf16_range_to_replace: range_to_replace,
11756 text: text.into(),
11757 });
11758
11759 if let Some(ranges) = ranges_to_replace {
11760 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11761 }
11762
11763 let marked_ranges = {
11764 let snapshot = this.buffer.read(cx).read(cx);
11765 this.selections
11766 .disjoint_anchors()
11767 .iter()
11768 .map(|selection| {
11769 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11770 })
11771 .collect::<Vec<_>>()
11772 };
11773
11774 if text.is_empty() {
11775 this.unmark_text(cx);
11776 } else {
11777 this.highlight_text::<InputComposition>(
11778 marked_ranges.clone(),
11779 HighlightStyle {
11780 underline: Some(UnderlineStyle {
11781 thickness: px(1.),
11782 color: None,
11783 wavy: false,
11784 }),
11785 ..Default::default()
11786 },
11787 cx,
11788 );
11789 }
11790
11791 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11792 let use_autoclose = this.use_autoclose;
11793 this.set_use_autoclose(false);
11794 this.handle_input(text, cx);
11795 this.set_use_autoclose(use_autoclose);
11796
11797 if let Some(new_selected_range) = new_selected_range_utf16 {
11798 let snapshot = this.buffer.read(cx).read(cx);
11799 let new_selected_ranges = marked_ranges
11800 .into_iter()
11801 .map(|marked_range| {
11802 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11803 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11804 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11805 snapshot.clip_offset_utf16(new_start, Bias::Left)
11806 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11807 })
11808 .collect::<Vec<_>>();
11809
11810 drop(snapshot);
11811 this.change_selections(None, cx, |selections| {
11812 selections.select_ranges(new_selected_ranges)
11813 });
11814 }
11815 });
11816
11817 self.ime_transaction = self.ime_transaction.or(transaction);
11818 if let Some(transaction) = self.ime_transaction {
11819 self.buffer.update(cx, |buffer, cx| {
11820 buffer.group_until_transaction(transaction, cx);
11821 });
11822 }
11823
11824 if self.text_highlights::<InputComposition>(cx).is_none() {
11825 self.ime_transaction.take();
11826 }
11827 }
11828
11829 fn bounds_for_range(
11830 &mut self,
11831 range_utf16: Range<usize>,
11832 element_bounds: gpui::Bounds<Pixels>,
11833 cx: &mut ViewContext<Self>,
11834 ) -> Option<gpui::Bounds<Pixels>> {
11835 let text_layout_details = self.text_layout_details(cx);
11836 let style = &text_layout_details.editor_style;
11837 let font_id = cx.text_system().resolve_font(&style.text.font());
11838 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11839 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11840 let em_width = cx
11841 .text_system()
11842 .typographic_bounds(font_id, font_size, 'm')
11843 .unwrap()
11844 .size
11845 .width;
11846
11847 let snapshot = self.snapshot(cx);
11848 let scroll_position = snapshot.scroll_position();
11849 let scroll_left = scroll_position.x * em_width;
11850
11851 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11852 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11853 + self.gutter_dimensions.width;
11854 let y = line_height * (start.row().as_f32() - scroll_position.y);
11855
11856 Some(Bounds {
11857 origin: element_bounds.origin + point(x, y),
11858 size: size(em_width, line_height),
11859 })
11860 }
11861}
11862
11863trait SelectionExt {
11864 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11865 fn spanned_rows(
11866 &self,
11867 include_end_if_at_line_start: bool,
11868 map: &DisplaySnapshot,
11869 ) -> Range<MultiBufferRow>;
11870}
11871
11872impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11873 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11874 let start = self
11875 .start
11876 .to_point(&map.buffer_snapshot)
11877 .to_display_point(map);
11878 let end = self
11879 .end
11880 .to_point(&map.buffer_snapshot)
11881 .to_display_point(map);
11882 if self.reversed {
11883 end..start
11884 } else {
11885 start..end
11886 }
11887 }
11888
11889 fn spanned_rows(
11890 &self,
11891 include_end_if_at_line_start: bool,
11892 map: &DisplaySnapshot,
11893 ) -> Range<MultiBufferRow> {
11894 let start = self.start.to_point(&map.buffer_snapshot);
11895 let mut end = self.end.to_point(&map.buffer_snapshot);
11896 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11897 end.row -= 1;
11898 }
11899
11900 let buffer_start = map.prev_line_boundary(start).0;
11901 let buffer_end = map.next_line_boundary(end).0;
11902 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11903 }
11904}
11905
11906impl<T: InvalidationRegion> InvalidationStack<T> {
11907 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11908 where
11909 S: Clone + ToOffset,
11910 {
11911 while let Some(region) = self.last() {
11912 let all_selections_inside_invalidation_ranges =
11913 if selections.len() == region.ranges().len() {
11914 selections
11915 .iter()
11916 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11917 .all(|(selection, invalidation_range)| {
11918 let head = selection.head().to_offset(buffer);
11919 invalidation_range.start <= head && invalidation_range.end >= head
11920 })
11921 } else {
11922 false
11923 };
11924
11925 if all_selections_inside_invalidation_ranges {
11926 break;
11927 } else {
11928 self.pop();
11929 }
11930 }
11931 }
11932}
11933
11934impl<T> Default for InvalidationStack<T> {
11935 fn default() -> Self {
11936 Self(Default::default())
11937 }
11938}
11939
11940impl<T> Deref for InvalidationStack<T> {
11941 type Target = Vec<T>;
11942
11943 fn deref(&self) -> &Self::Target {
11944 &self.0
11945 }
11946}
11947
11948impl<T> DerefMut for InvalidationStack<T> {
11949 fn deref_mut(&mut self) -> &mut Self::Target {
11950 &mut self.0
11951 }
11952}
11953
11954impl InvalidationRegion for SnippetState {
11955 fn ranges(&self) -> &[Range<Anchor>] {
11956 &self.ranges[self.active_index]
11957 }
11958}
11959
11960pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11961 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11962
11963 Box::new(move |cx: &mut BlockContext| {
11964 let group_id: SharedString = cx.block_id.to_string().into();
11965
11966 let mut text_style = cx.text_style().clone();
11967 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11968 let theme_settings = ThemeSettings::get_global(cx);
11969 text_style.font_family = theme_settings.buffer_font.family.clone();
11970 text_style.font_style = theme_settings.buffer_font.style;
11971 text_style.font_features = theme_settings.buffer_font.features.clone();
11972 text_style.font_weight = theme_settings.buffer_font.weight;
11973
11974 let multi_line_diagnostic = diagnostic.message.contains('\n');
11975
11976 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11977 if multi_line_diagnostic {
11978 v_flex()
11979 } else {
11980 h_flex()
11981 }
11982 .children(diagnostic.is_primary.then(|| {
11983 IconButton::new(("close-block", block_id), IconName::XCircle)
11984 .icon_color(Color::Muted)
11985 .size(ButtonSize::Compact)
11986 .style(ButtonStyle::Transparent)
11987 .visible_on_hover(group_id.clone())
11988 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11989 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11990 }))
11991 .child(
11992 IconButton::new(("copy-block", block_id), IconName::Copy)
11993 .icon_color(Color::Muted)
11994 .size(ButtonSize::Compact)
11995 .style(ButtonStyle::Transparent)
11996 .visible_on_hover(group_id.clone())
11997 .on_click({
11998 let message = diagnostic.message.clone();
11999 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12000 })
12001 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12002 )
12003 };
12004
12005 let icon_size = buttons(&diagnostic, cx.block_id)
12006 .into_any_element()
12007 .layout_as_root(AvailableSpace::min_size(), cx);
12008
12009 h_flex()
12010 .id(cx.block_id)
12011 .group(group_id.clone())
12012 .relative()
12013 .size_full()
12014 .pl(cx.gutter_dimensions.width)
12015 .w(cx.max_width + cx.gutter_dimensions.width)
12016 .child(
12017 div()
12018 .flex()
12019 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12020 .flex_shrink(),
12021 )
12022 .child(buttons(&diagnostic, cx.block_id))
12023 .child(div().flex().flex_shrink_0().child(
12024 StyledText::new(text_without_backticks.clone()).with_highlights(
12025 &text_style,
12026 code_ranges.iter().map(|range| {
12027 (
12028 range.clone(),
12029 HighlightStyle {
12030 font_weight: Some(FontWeight::BOLD),
12031 ..Default::default()
12032 },
12033 )
12034 }),
12035 ),
12036 ))
12037 .into_any_element()
12038 })
12039}
12040
12041pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
12042 let mut text_without_backticks = String::new();
12043 let mut code_ranges = Vec::new();
12044
12045 if let Some(source) = &diagnostic.source {
12046 text_without_backticks.push_str(&source);
12047 code_ranges.push(0..source.len());
12048 text_without_backticks.push_str(": ");
12049 }
12050
12051 let mut prev_offset = 0;
12052 let mut in_code_block = false;
12053 for (ix, _) in diagnostic
12054 .message
12055 .match_indices('`')
12056 .chain([(diagnostic.message.len(), "")])
12057 {
12058 let prev_len = text_without_backticks.len();
12059 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
12060 prev_offset = ix + 1;
12061 if in_code_block {
12062 code_ranges.push(prev_len..text_without_backticks.len());
12063 in_code_block = false;
12064 } else {
12065 in_code_block = true;
12066 }
12067 }
12068
12069 (text_without_backticks.into(), code_ranges)
12070}
12071
12072fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
12073 match (severity, valid) {
12074 (DiagnosticSeverity::ERROR, true) => colors.error,
12075 (DiagnosticSeverity::ERROR, false) => colors.error,
12076 (DiagnosticSeverity::WARNING, true) => colors.warning,
12077 (DiagnosticSeverity::WARNING, false) => colors.warning,
12078 (DiagnosticSeverity::INFORMATION, true) => colors.info,
12079 (DiagnosticSeverity::INFORMATION, false) => colors.info,
12080 (DiagnosticSeverity::HINT, true) => colors.info,
12081 (DiagnosticSeverity::HINT, false) => colors.info,
12082 _ => colors.ignored,
12083 }
12084}
12085
12086pub fn styled_runs_for_code_label<'a>(
12087 label: &'a CodeLabel,
12088 syntax_theme: &'a theme::SyntaxTheme,
12089) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12090 let fade_out = HighlightStyle {
12091 fade_out: Some(0.35),
12092 ..Default::default()
12093 };
12094
12095 let mut prev_end = label.filter_range.end;
12096 label
12097 .runs
12098 .iter()
12099 .enumerate()
12100 .flat_map(move |(ix, (range, highlight_id))| {
12101 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12102 style
12103 } else {
12104 return Default::default();
12105 };
12106 let mut muted_style = style;
12107 muted_style.highlight(fade_out);
12108
12109 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12110 if range.start >= label.filter_range.end {
12111 if range.start > prev_end {
12112 runs.push((prev_end..range.start, fade_out));
12113 }
12114 runs.push((range.clone(), muted_style));
12115 } else if range.end <= label.filter_range.end {
12116 runs.push((range.clone(), style));
12117 } else {
12118 runs.push((range.start..label.filter_range.end, style));
12119 runs.push((label.filter_range.end..range.end, muted_style));
12120 }
12121 prev_end = cmp::max(prev_end, range.end);
12122
12123 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12124 runs.push((prev_end..label.text.len(), fade_out));
12125 }
12126
12127 runs
12128 })
12129}
12130
12131pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12132 let mut prev_index = 0;
12133 let mut prev_codepoint: Option<char> = None;
12134 text.char_indices()
12135 .chain([(text.len(), '\0')])
12136 .filter_map(move |(index, codepoint)| {
12137 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12138 let is_boundary = index == text.len()
12139 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12140 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12141 if is_boundary {
12142 let chunk = &text[prev_index..index];
12143 prev_index = index;
12144 Some(chunk)
12145 } else {
12146 None
12147 }
12148 })
12149}
12150
12151trait RangeToAnchorExt {
12152 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12153}
12154
12155impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12156 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12157 let start_offset = self.start.to_offset(snapshot);
12158 let end_offset = self.end.to_offset(snapshot);
12159 if start_offset == end_offset {
12160 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12161 } else {
12162 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12163 }
12164 }
12165}
12166
12167pub trait RowExt {
12168 fn as_f32(&self) -> f32;
12169
12170 fn next_row(&self) -> Self;
12171
12172 fn previous_row(&self) -> Self;
12173
12174 fn minus(&self, other: Self) -> u32;
12175}
12176
12177impl RowExt for DisplayRow {
12178 fn as_f32(&self) -> f32 {
12179 self.0 as f32
12180 }
12181
12182 fn next_row(&self) -> Self {
12183 Self(self.0 + 1)
12184 }
12185
12186 fn previous_row(&self) -> Self {
12187 Self(self.0.saturating_sub(1))
12188 }
12189
12190 fn minus(&self, other: Self) -> u32 {
12191 self.0 - other.0
12192 }
12193}
12194
12195impl RowExt for MultiBufferRow {
12196 fn as_f32(&self) -> f32 {
12197 self.0 as f32
12198 }
12199
12200 fn next_row(&self) -> Self {
12201 Self(self.0 + 1)
12202 }
12203
12204 fn previous_row(&self) -> Self {
12205 Self(self.0.saturating_sub(1))
12206 }
12207
12208 fn minus(&self, other: Self) -> u32 {
12209 self.0 - other.0
12210 }
12211}
12212
12213trait RowRangeExt {
12214 type Row;
12215
12216 fn len(&self) -> usize;
12217
12218 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12219}
12220
12221impl RowRangeExt for Range<MultiBufferRow> {
12222 type Row = MultiBufferRow;
12223
12224 fn len(&self) -> usize {
12225 (self.end.0 - self.start.0) as usize
12226 }
12227
12228 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12229 (self.start.0..self.end.0).map(MultiBufferRow)
12230 }
12231}
12232
12233impl RowRangeExt for Range<DisplayRow> {
12234 type Row = DisplayRow;
12235
12236 fn len(&self) -> usize {
12237 (self.end.0 - self.start.0) as usize
12238 }
12239
12240 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12241 (self.start.0..self.end.0).map(DisplayRow)
12242 }
12243}
12244
12245fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12246 if hunk.diff_base_byte_range.is_empty() {
12247 DiffHunkStatus::Added
12248 } else if hunk.associated_range.is_empty() {
12249 DiffHunkStatus::Removed
12250 } else {
12251 DiffHunkStatus::Modified
12252 }
12253}