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 linked_editing_ranges;
32mod mouse_context_menu;
33pub mod movement;
34mod persistence;
35mod rust_analyzer_ext;
36pub mod scroll;
37mod selections_collection;
38pub mod tasks;
39
40#[cfg(test)]
41mod editor_tests;
42#[cfg(any(test, feature = "test-support"))]
43pub mod test;
44use ::git::diff::{DiffHunk, DiffHunkStatus};
45use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
46pub(crate) use actions::*;
47use aho_corasick::AhoCorasick;
48use anyhow::{anyhow, Context as _, Result};
49use blink_manager::BlinkManager;
50use client::{Collaborator, ParticipantIndex};
51use clock::ReplicaId;
52use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
53use convert_case::{Case, Casing};
54use debounced_delay::DebouncedDelay;
55use display_map::*;
56pub use display_map::{DisplayPoint, FoldPlaceholder};
57pub use editor_settings::{CurrentLineHighlight, EditorSettings};
58use element::LineWithInvisibles;
59pub use element::{
60 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
61};
62use futures::FutureExt;
63use fuzzy::{StringMatch, StringMatchCandidate};
64use git::blame::GitBlame;
65use git::diff_hunk_to_display;
66use gpui::{
67 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
68 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
69 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView,
70 FontId, FontStyle, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
71 ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
72 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle, UnderlineStyle,
73 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
74 WeakView, WhiteSpace, WindowContext,
75};
76use highlight_matching_bracket::refresh_matching_bracket_highlights;
77use hover_popover::{hide_hover, HoverState};
78use hunk_diff::ExpandedHunks;
79pub(crate) use hunk_diff::HunkToExpand;
80use indent_guides::ActiveIndentGuidesState;
81use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
82pub use inline_completion_provider::*;
83pub use items::MAX_TAB_TITLE_LEN;
84use itertools::Itertools;
85use language::{
86 char_kind,
87 language_settings::{self, all_language_settings, InlayHintSettings},
88 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
89 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
90 Point, Selection, SelectionGoal, TransactionId,
91};
92use language::{BufferRow, Runnable, RunnableRange};
93use linked_editing_ranges::refresh_linked_ranges;
94use task::{ResolvedTask, TaskTemplate, TaskVariables};
95
96use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
97pub use lsp::CompletionContext;
98use lsp::{CompletionTriggerKind, DiagnosticSeverity, LanguageServerId};
99use mouse_context_menu::MouseContextMenu;
100use movement::TextLayoutDetails;
101pub use multi_buffer::{
102 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
103 ToPoint,
104};
105use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
106use ordered_float::OrderedFloat;
107use parking_lot::{Mutex, RwLock};
108use project::project_settings::{GitGutterSetting, ProjectSettings};
109use project::{
110 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
111 ProjectTransaction, TaskSourceKind, WorktreeId,
112};
113use rand::prelude::*;
114use rpc::{proto::*, ErrorExt};
115use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
116use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
117use serde::{Deserialize, Serialize};
118use settings::{update_settings_file, Settings, SettingsStore};
119use smallvec::SmallVec;
120use snippet::Snippet;
121use std::{
122 any::TypeId,
123 borrow::Cow,
124 cell::RefCell,
125 cmp::{self, Ordering, Reverse},
126 mem,
127 num::NonZeroU32,
128 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
129 path::Path,
130 rc::Rc,
131 sync::Arc,
132 time::{Duration, Instant},
133};
134pub use sum_tree::Bias;
135use sum_tree::TreeMap;
136use text::{BufferId, OffsetUtf16, Rope};
137use theme::{
138 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
139 ThemeColors, ThemeSettings,
140};
141use ui::{
142 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
143 ListItem, Popover, Tooltip,
144};
145use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
146use workspace::item::{ItemHandle, PreviewTabsSettings};
147use workspace::notifications::{DetachAndPromptErr, NotificationId};
148use workspace::{
149 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
150};
151use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
152
153use crate::hover_links::find_url;
154
155pub const FILE_HEADER_HEIGHT: u8 = 1;
156pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u8 = 1;
157pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u8 = 1;
158pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
159const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
160const MAX_LINE_LEN: usize = 1024;
161const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
162const MAX_SELECTION_HISTORY_LEN: usize = 1024;
163pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
164#[doc(hidden)]
165pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
166#[doc(hidden)]
167pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
168
169pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
170
171pub fn render_parsed_markdown(
172 element_id: impl Into<ElementId>,
173 parsed: &language::ParsedMarkdown,
174 editor_style: &EditorStyle,
175 workspace: Option<WeakView<Workspace>>,
176 cx: &mut WindowContext,
177) -> InteractiveText {
178 let code_span_background_color = cx
179 .theme()
180 .colors()
181 .editor_document_highlight_read_background;
182
183 let highlights = gpui::combine_highlights(
184 parsed.highlights.iter().filter_map(|(range, highlight)| {
185 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
186 Some((range.clone(), highlight))
187 }),
188 parsed
189 .regions
190 .iter()
191 .zip(&parsed.region_ranges)
192 .filter_map(|(region, range)| {
193 if region.code {
194 Some((
195 range.clone(),
196 HighlightStyle {
197 background_color: Some(code_span_background_color),
198 ..Default::default()
199 },
200 ))
201 } else {
202 None
203 }
204 }),
205 );
206
207 let mut links = Vec::new();
208 let mut link_ranges = Vec::new();
209 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
210 if let Some(link) = region.link.clone() {
211 links.push(link);
212 link_ranges.push(range.clone());
213 }
214 }
215
216 InteractiveText::new(
217 element_id,
218 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
219 )
220 .on_click(link_ranges, move |clicked_range_ix, cx| {
221 match &links[clicked_range_ix] {
222 markdown::Link::Web { url } => cx.open_url(url),
223 markdown::Link::Path { path } => {
224 if let Some(workspace) = &workspace {
225 _ = workspace.update(cx, |workspace, cx| {
226 workspace.open_abs_path(path.clone(), false, cx).detach();
227 });
228 }
229 }
230 }
231 })
232}
233
234#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
235pub(crate) enum InlayId {
236 Suggestion(usize),
237 Hint(usize),
238}
239
240impl InlayId {
241 fn id(&self) -> usize {
242 match self {
243 Self::Suggestion(id) => *id,
244 Self::Hint(id) => *id,
245 }
246 }
247}
248
249enum DiffRowHighlight {}
250enum DocumentHighlightRead {}
251enum DocumentHighlightWrite {}
252enum InputComposition {}
253
254#[derive(Copy, Clone, PartialEq, Eq)]
255pub enum Direction {
256 Prev,
257 Next,
258}
259
260pub fn init_settings(cx: &mut AppContext) {
261 EditorSettings::register(cx);
262}
263
264pub fn init(cx: &mut AppContext) {
265 init_settings(cx);
266
267 workspace::register_project_item::<Editor>(cx);
268 workspace::register_followable_item::<Editor>(cx);
269 workspace::register_deserializable_item::<Editor>(cx);
270 cx.observe_new_views(
271 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
272 workspace.register_action(Editor::new_file);
273 workspace.register_action(Editor::new_file_in_direction);
274 },
275 )
276 .detach();
277
278 cx.on_action(move |_: &workspace::NewFile, cx| {
279 let app_state = workspace::AppState::global(cx);
280 if let Some(app_state) = app_state.upgrade() {
281 workspace::open_new(app_state, cx, |workspace, cx| {
282 Editor::new_file(workspace, &Default::default(), cx)
283 })
284 .detach();
285 }
286 });
287 cx.on_action(move |_: &workspace::NewWindow, cx| {
288 let app_state = workspace::AppState::global(cx);
289 if let Some(app_state) = app_state.upgrade() {
290 workspace::open_new(app_state, cx, |workspace, cx| {
291 Editor::new_file(workspace, &Default::default(), cx)
292 })
293 .detach();
294 }
295 });
296}
297
298pub struct SearchWithinRange;
299
300trait InvalidationRegion {
301 fn ranges(&self) -> &[Range<Anchor>];
302}
303
304#[derive(Clone, Debug, PartialEq)]
305pub enum SelectPhase {
306 Begin {
307 position: DisplayPoint,
308 add: bool,
309 click_count: usize,
310 },
311 BeginColumnar {
312 position: DisplayPoint,
313 reset: bool,
314 goal_column: u32,
315 },
316 Extend {
317 position: DisplayPoint,
318 click_count: usize,
319 },
320 Update {
321 position: DisplayPoint,
322 goal_column: u32,
323 scroll_delta: gpui::Point<f32>,
324 },
325 End,
326}
327
328#[derive(Clone, Debug)]
329pub enum SelectMode {
330 Character,
331 Word(Range<Anchor>),
332 Line(Range<Anchor>),
333 All,
334}
335
336#[derive(Copy, Clone, PartialEq, Eq, Debug)]
337pub enum EditorMode {
338 SingleLine,
339 AutoHeight { max_lines: usize },
340 Full,
341}
342
343#[derive(Clone, Debug)]
344pub enum SoftWrap {
345 None,
346 PreferLine,
347 EditorWidth,
348 Column(u32),
349}
350
351#[derive(Clone)]
352pub struct EditorStyle {
353 pub background: Hsla,
354 pub local_player: PlayerColor,
355 pub text: TextStyle,
356 pub scrollbar_width: Pixels,
357 pub syntax: Arc<SyntaxTheme>,
358 pub status: StatusColors,
359 pub inlay_hints_style: HighlightStyle,
360 pub suggestions_style: HighlightStyle,
361}
362
363impl Default for EditorStyle {
364 fn default() -> Self {
365 Self {
366 background: Hsla::default(),
367 local_player: PlayerColor::default(),
368 text: TextStyle::default(),
369 scrollbar_width: Pixels::default(),
370 syntax: Default::default(),
371 // HACK: Status colors don't have a real default.
372 // We should look into removing the status colors from the editor
373 // style and retrieve them directly from the theme.
374 status: StatusColors::dark(),
375 inlay_hints_style: HighlightStyle::default(),
376 suggestions_style: HighlightStyle::default(),
377 }
378 }
379}
380
381type CompletionId = usize;
382
383#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
384struct EditorActionId(usize);
385
386impl EditorActionId {
387 pub fn post_inc(&mut self) -> Self {
388 let answer = self.0;
389
390 *self = Self(answer + 1);
391
392 Self(answer)
393 }
394}
395
396// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
397// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
398
399type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
400type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
401
402struct ScrollbarMarkerState {
403 scrollbar_size: Size<Pixels>,
404 dirty: bool,
405 markers: Arc<[PaintQuad]>,
406 pending_refresh: Option<Task<Result<()>>>,
407}
408
409impl ScrollbarMarkerState {
410 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
411 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
412 }
413}
414
415impl Default for ScrollbarMarkerState {
416 fn default() -> Self {
417 Self {
418 scrollbar_size: Size::default(),
419 dirty: false,
420 markers: Arc::from([]),
421 pending_refresh: None,
422 }
423 }
424}
425
426#[derive(Clone, Debug)]
427struct RunnableTasks {
428 templates: Vec<(TaskSourceKind, TaskTemplate)>,
429 offset: MultiBufferOffset,
430 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
431 column: u32,
432 // Values of all named captures, including those starting with '_'
433 extra_variables: HashMap<String, String>,
434 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
435 context_range: Range<BufferOffset>,
436}
437
438#[derive(Clone)]
439struct ResolvedTasks {
440 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
441 position: Anchor,
442}
443#[derive(Copy, Clone, Debug)]
444struct MultiBufferOffset(usize);
445#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
446struct BufferOffset(usize);
447/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
448///
449/// See the [module level documentation](self) for more information.
450pub struct Editor {
451 focus_handle: FocusHandle,
452 last_focused_descendant: Option<WeakFocusHandle>,
453 /// The text buffer being edited
454 buffer: Model<MultiBuffer>,
455 /// Map of how text in the buffer should be displayed.
456 /// Handles soft wraps, folds, fake inlay text insertions, etc.
457 pub display_map: Model<DisplayMap>,
458 pub selections: SelectionsCollection,
459 pub scroll_manager: ScrollManager,
460 columnar_selection_tail: Option<Anchor>,
461 add_selections_state: Option<AddSelectionsState>,
462 select_next_state: Option<SelectNextState>,
463 select_prev_state: Option<SelectNextState>,
464 selection_history: SelectionHistory,
465 autoclose_regions: Vec<AutocloseRegion>,
466 snippet_stack: InvalidationStack<SnippetState>,
467 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
468 ime_transaction: Option<TransactionId>,
469 active_diagnostics: Option<ActiveDiagnosticGroup>,
470 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
471 project: Option<Model<Project>>,
472 completion_provider: Option<Box<dyn CompletionProvider>>,
473 collaboration_hub: Option<Box<dyn CollaborationHub>>,
474 blink_manager: Model<BlinkManager>,
475 show_cursor_names: bool,
476 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
477 pub show_local_selections: bool,
478 mode: EditorMode,
479 show_breadcrumbs: bool,
480 show_gutter: bool,
481 show_line_numbers: Option<bool>,
482 show_git_diff_gutter: Option<bool>,
483 show_code_actions: Option<bool>,
484 show_wrap_guides: Option<bool>,
485 show_indent_guides: Option<bool>,
486 placeholder_text: Option<Arc<str>>,
487 highlight_order: usize,
488 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
489 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
490 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
491 scrollbar_marker_state: ScrollbarMarkerState,
492 active_indent_guides_state: ActiveIndentGuidesState,
493 nav_history: Option<ItemNavHistory>,
494 context_menu: RwLock<Option<ContextMenu>>,
495 mouse_context_menu: Option<MouseContextMenu>,
496 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
497 find_all_references_task_sources: Vec<Anchor>,
498 next_completion_id: CompletionId,
499 completion_documentation_pre_resolve_debounce: DebouncedDelay,
500 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
501 code_actions_task: Option<Task<()>>,
502 document_highlights_task: Option<Task<()>>,
503 linked_editing_range_task: Option<Task<Option<()>>>,
504 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
505 pending_rename: Option<RenameState>,
506 searchable: bool,
507 cursor_shape: CursorShape,
508 current_line_highlight: Option<CurrentLineHighlight>,
509 collapse_matches: bool,
510 autoindent_mode: Option<AutoindentMode>,
511 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
512 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
513 input_enabled: bool,
514 use_modal_editing: bool,
515 read_only: bool,
516 leader_peer_id: Option<PeerId>,
517 remote_id: Option<ViewId>,
518 hover_state: HoverState,
519 gutter_hovered: bool,
520 hovered_link_state: Option<HoveredLinkState>,
521 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
522 active_inline_completion: Option<Inlay>,
523 show_inline_completions: bool,
524 inlay_hint_cache: InlayHintCache,
525 expanded_hunks: ExpandedHunks,
526 next_inlay_id: usize,
527 _subscriptions: Vec<Subscription>,
528 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
529 gutter_dimensions: GutterDimensions,
530 pub vim_replace_map: HashMap<Range<usize>, String>,
531 style: Option<EditorStyle>,
532 next_editor_action_id: EditorActionId,
533 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
534 use_autoclose: bool,
535 auto_replace_emoji_shortcode: bool,
536 show_git_blame_gutter: bool,
537 show_git_blame_inline: bool,
538 show_git_blame_inline_delay_task: Option<Task<()>>,
539 git_blame_inline_enabled: bool,
540 show_selection_menu: Option<bool>,
541 blame: Option<Model<GitBlame>>,
542 blame_subscription: Option<Subscription>,
543 custom_context_menu: Option<
544 Box<
545 dyn 'static
546 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
547 >,
548 >,
549 last_bounds: Option<Bounds<Pixels>>,
550 expect_bounds_change: Option<Bounds<Pixels>>,
551 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
552 tasks_update_task: Option<Task<()>>,
553 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
554 file_header_size: u8,
555 breadcrumb_header: Option<String>,
556}
557
558#[derive(Clone)]
559pub struct EditorSnapshot {
560 pub mode: EditorMode,
561 show_gutter: bool,
562 show_line_numbers: Option<bool>,
563 show_git_diff_gutter: Option<bool>,
564 show_code_actions: Option<bool>,
565 render_git_blame_gutter: bool,
566 pub display_snapshot: DisplaySnapshot,
567 pub placeholder_text: Option<Arc<str>>,
568 is_focused: bool,
569 scroll_anchor: ScrollAnchor,
570 ongoing_scroll: OngoingScroll,
571 current_line_highlight: CurrentLineHighlight,
572 gutter_hovered: bool,
573}
574
575const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
576
577#[derive(Debug, Clone, Copy)]
578pub struct GutterDimensions {
579 pub left_padding: Pixels,
580 pub right_padding: Pixels,
581 pub width: Pixels,
582 pub margin: Pixels,
583 pub git_blame_entries_width: Option<Pixels>,
584}
585
586impl GutterDimensions {
587 /// The full width of the space taken up by the gutter.
588 pub fn full_width(&self) -> Pixels {
589 self.margin + self.width
590 }
591
592 /// The width of the space reserved for the fold indicators,
593 /// use alongside 'justify_end' and `gutter_width` to
594 /// right align content with the line numbers
595 pub fn fold_area_width(&self) -> Pixels {
596 self.margin + self.right_padding
597 }
598}
599
600impl Default for GutterDimensions {
601 fn default() -> Self {
602 Self {
603 left_padding: Pixels::ZERO,
604 right_padding: Pixels::ZERO,
605 width: Pixels::ZERO,
606 margin: Pixels::ZERO,
607 git_blame_entries_width: None,
608 }
609 }
610}
611
612#[derive(Debug)]
613pub struct RemoteSelection {
614 pub replica_id: ReplicaId,
615 pub selection: Selection<Anchor>,
616 pub cursor_shape: CursorShape,
617 pub peer_id: PeerId,
618 pub line_mode: bool,
619 pub participant_index: Option<ParticipantIndex>,
620 pub user_name: Option<SharedString>,
621}
622
623#[derive(Clone, Debug)]
624struct SelectionHistoryEntry {
625 selections: Arc<[Selection<Anchor>]>,
626 select_next_state: Option<SelectNextState>,
627 select_prev_state: Option<SelectNextState>,
628 add_selections_state: Option<AddSelectionsState>,
629}
630
631enum SelectionHistoryMode {
632 Normal,
633 Undoing,
634 Redoing,
635}
636
637#[derive(Clone, PartialEq, Eq, Hash)]
638struct HoveredCursor {
639 replica_id: u16,
640 selection_id: usize,
641}
642
643impl Default for SelectionHistoryMode {
644 fn default() -> Self {
645 Self::Normal
646 }
647}
648
649#[derive(Default)]
650struct SelectionHistory {
651 #[allow(clippy::type_complexity)]
652 selections_by_transaction:
653 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
654 mode: SelectionHistoryMode,
655 undo_stack: VecDeque<SelectionHistoryEntry>,
656 redo_stack: VecDeque<SelectionHistoryEntry>,
657}
658
659impl SelectionHistory {
660 fn insert_transaction(
661 &mut self,
662 transaction_id: TransactionId,
663 selections: Arc<[Selection<Anchor>]>,
664 ) {
665 self.selections_by_transaction
666 .insert(transaction_id, (selections, None));
667 }
668
669 #[allow(clippy::type_complexity)]
670 fn transaction(
671 &self,
672 transaction_id: TransactionId,
673 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
674 self.selections_by_transaction.get(&transaction_id)
675 }
676
677 #[allow(clippy::type_complexity)]
678 fn transaction_mut(
679 &mut self,
680 transaction_id: TransactionId,
681 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
682 self.selections_by_transaction.get_mut(&transaction_id)
683 }
684
685 fn push(&mut self, entry: SelectionHistoryEntry) {
686 if !entry.selections.is_empty() {
687 match self.mode {
688 SelectionHistoryMode::Normal => {
689 self.push_undo(entry);
690 self.redo_stack.clear();
691 }
692 SelectionHistoryMode::Undoing => self.push_redo(entry),
693 SelectionHistoryMode::Redoing => self.push_undo(entry),
694 }
695 }
696 }
697
698 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
699 if self
700 .undo_stack
701 .back()
702 .map_or(true, |e| e.selections != entry.selections)
703 {
704 self.undo_stack.push_back(entry);
705 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
706 self.undo_stack.pop_front();
707 }
708 }
709 }
710
711 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
712 if self
713 .redo_stack
714 .back()
715 .map_or(true, |e| e.selections != entry.selections)
716 {
717 self.redo_stack.push_back(entry);
718 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
719 self.redo_stack.pop_front();
720 }
721 }
722 }
723}
724
725struct RowHighlight {
726 index: usize,
727 range: RangeInclusive<Anchor>,
728 color: Option<Hsla>,
729 should_autoscroll: bool,
730}
731
732#[derive(Clone, Debug)]
733struct AddSelectionsState {
734 above: bool,
735 stack: Vec<usize>,
736}
737
738#[derive(Clone)]
739struct SelectNextState {
740 query: AhoCorasick,
741 wordwise: bool,
742 done: bool,
743}
744
745impl std::fmt::Debug for SelectNextState {
746 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
747 f.debug_struct(std::any::type_name::<Self>())
748 .field("wordwise", &self.wordwise)
749 .field("done", &self.done)
750 .finish()
751 }
752}
753
754#[derive(Debug)]
755struct AutocloseRegion {
756 selection_id: usize,
757 range: Range<Anchor>,
758 pair: BracketPair,
759}
760
761#[derive(Debug)]
762struct SnippetState {
763 ranges: Vec<Vec<Range<Anchor>>>,
764 active_index: usize,
765}
766
767#[doc(hidden)]
768pub struct RenameState {
769 pub range: Range<Anchor>,
770 pub old_name: Arc<str>,
771 pub editor: View<Editor>,
772 block_id: BlockId,
773}
774
775struct InvalidationStack<T>(Vec<T>);
776
777struct RegisteredInlineCompletionProvider {
778 provider: Arc<dyn InlineCompletionProviderHandle>,
779 _subscription: Subscription,
780}
781
782enum ContextMenu {
783 Completions(CompletionsMenu),
784 CodeActions(CodeActionsMenu),
785}
786
787impl ContextMenu {
788 fn select_first(
789 &mut self,
790 project: Option<&Model<Project>>,
791 cx: &mut ViewContext<Editor>,
792 ) -> bool {
793 if self.visible() {
794 match self {
795 ContextMenu::Completions(menu) => menu.select_first(project, cx),
796 ContextMenu::CodeActions(menu) => menu.select_first(cx),
797 }
798 true
799 } else {
800 false
801 }
802 }
803
804 fn select_prev(
805 &mut self,
806 project: Option<&Model<Project>>,
807 cx: &mut ViewContext<Editor>,
808 ) -> bool {
809 if self.visible() {
810 match self {
811 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
812 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
813 }
814 true
815 } else {
816 false
817 }
818 }
819
820 fn select_next(
821 &mut self,
822 project: Option<&Model<Project>>,
823 cx: &mut ViewContext<Editor>,
824 ) -> bool {
825 if self.visible() {
826 match self {
827 ContextMenu::Completions(menu) => menu.select_next(project, cx),
828 ContextMenu::CodeActions(menu) => menu.select_next(cx),
829 }
830 true
831 } else {
832 false
833 }
834 }
835
836 fn select_last(
837 &mut self,
838 project: Option<&Model<Project>>,
839 cx: &mut ViewContext<Editor>,
840 ) -> bool {
841 if self.visible() {
842 match self {
843 ContextMenu::Completions(menu) => menu.select_last(project, cx),
844 ContextMenu::CodeActions(menu) => menu.select_last(cx),
845 }
846 true
847 } else {
848 false
849 }
850 }
851
852 fn visible(&self) -> bool {
853 match self {
854 ContextMenu::Completions(menu) => menu.visible(),
855 ContextMenu::CodeActions(menu) => menu.visible(),
856 }
857 }
858
859 fn render(
860 &self,
861 cursor_position: DisplayPoint,
862 style: &EditorStyle,
863 max_height: Pixels,
864 workspace: Option<WeakView<Workspace>>,
865 cx: &mut ViewContext<Editor>,
866 ) -> (ContextMenuOrigin, AnyElement) {
867 match self {
868 ContextMenu::Completions(menu) => (
869 ContextMenuOrigin::EditorPoint(cursor_position),
870 menu.render(style, max_height, workspace, cx),
871 ),
872 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
873 }
874 }
875}
876
877enum ContextMenuOrigin {
878 EditorPoint(DisplayPoint),
879 GutterIndicator(DisplayRow),
880}
881
882#[derive(Clone)]
883struct CompletionsMenu {
884 id: CompletionId,
885 initial_position: Anchor,
886 buffer: Model<Buffer>,
887 completions: Arc<RwLock<Box<[Completion]>>>,
888 match_candidates: Arc<[StringMatchCandidate]>,
889 matches: Arc<[StringMatch]>,
890 selected_item: usize,
891 scroll_handle: UniformListScrollHandle,
892 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
893}
894
895impl CompletionsMenu {
896 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
897 self.selected_item = 0;
898 self.scroll_handle.scroll_to_item(self.selected_item);
899 self.attempt_resolve_selected_completion_documentation(project, cx);
900 cx.notify();
901 }
902
903 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
904 if self.selected_item > 0 {
905 self.selected_item -= 1;
906 } else {
907 self.selected_item = self.matches.len() - 1;
908 }
909 self.scroll_handle.scroll_to_item(self.selected_item);
910 self.attempt_resolve_selected_completion_documentation(project, cx);
911 cx.notify();
912 }
913
914 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
915 if self.selected_item + 1 < self.matches.len() {
916 self.selected_item += 1;
917 } else {
918 self.selected_item = 0;
919 }
920 self.scroll_handle.scroll_to_item(self.selected_item);
921 self.attempt_resolve_selected_completion_documentation(project, cx);
922 cx.notify();
923 }
924
925 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
926 self.selected_item = self.matches.len() - 1;
927 self.scroll_handle.scroll_to_item(self.selected_item);
928 self.attempt_resolve_selected_completion_documentation(project, cx);
929 cx.notify();
930 }
931
932 fn pre_resolve_completion_documentation(
933 buffer: Model<Buffer>,
934 completions: Arc<RwLock<Box<[Completion]>>>,
935 matches: Arc<[StringMatch]>,
936 editor: &Editor,
937 cx: &mut ViewContext<Editor>,
938 ) -> Task<()> {
939 let settings = EditorSettings::get_global(cx);
940 if !settings.show_completion_documentation {
941 return Task::ready(());
942 }
943
944 let Some(provider) = editor.completion_provider.as_ref() else {
945 return Task::ready(());
946 };
947
948 let resolve_task = provider.resolve_completions(
949 buffer,
950 matches.iter().map(|m| m.candidate_id).collect(),
951 completions.clone(),
952 cx,
953 );
954
955 return cx.spawn(move |this, mut cx| async move {
956 if let Some(true) = resolve_task.await.log_err() {
957 this.update(&mut cx, |_, cx| cx.notify()).ok();
958 }
959 });
960 }
961
962 fn attempt_resolve_selected_completion_documentation(
963 &mut self,
964 project: Option<&Model<Project>>,
965 cx: &mut ViewContext<Editor>,
966 ) {
967 let settings = EditorSettings::get_global(cx);
968 if !settings.show_completion_documentation {
969 return;
970 }
971
972 let completion_index = self.matches[self.selected_item].candidate_id;
973 let Some(project) = project else {
974 return;
975 };
976
977 let resolve_task = project.update(cx, |project, cx| {
978 project.resolve_completions(
979 self.buffer.clone(),
980 vec![completion_index],
981 self.completions.clone(),
982 cx,
983 )
984 });
985
986 let delay_ms =
987 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
988 let delay = Duration::from_millis(delay_ms);
989
990 self.selected_completion_documentation_resolve_debounce
991 .lock()
992 .fire_new(delay, cx, |_, cx| {
993 cx.spawn(move |this, mut cx| async move {
994 if let Some(true) = resolve_task.await.log_err() {
995 this.update(&mut cx, |_, cx| cx.notify()).ok();
996 }
997 })
998 });
999 }
1000
1001 fn visible(&self) -> bool {
1002 !self.matches.is_empty()
1003 }
1004
1005 fn render(
1006 &self,
1007 style: &EditorStyle,
1008 max_height: Pixels,
1009 workspace: Option<WeakView<Workspace>>,
1010 cx: &mut ViewContext<Editor>,
1011 ) -> AnyElement {
1012 let settings = EditorSettings::get_global(cx);
1013 let show_completion_documentation = settings.show_completion_documentation;
1014
1015 let widest_completion_ix = self
1016 .matches
1017 .iter()
1018 .enumerate()
1019 .max_by_key(|(_, mat)| {
1020 let completions = self.completions.read();
1021 let completion = &completions[mat.candidate_id];
1022 let documentation = &completion.documentation;
1023
1024 let mut len = completion.label.text.chars().count();
1025 if let Some(Documentation::SingleLine(text)) = documentation {
1026 if show_completion_documentation {
1027 len += text.chars().count();
1028 }
1029 }
1030
1031 len
1032 })
1033 .map(|(ix, _)| ix);
1034
1035 let completions = self.completions.clone();
1036 let matches = self.matches.clone();
1037 let selected_item = self.selected_item;
1038 let style = style.clone();
1039
1040 let multiline_docs = if show_completion_documentation {
1041 let mat = &self.matches[selected_item];
1042 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1043 Some(Documentation::MultiLinePlainText(text)) => {
1044 Some(div().child(SharedString::from(text.clone())))
1045 }
1046 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1047 Some(div().child(render_parsed_markdown(
1048 "completions_markdown",
1049 parsed,
1050 &style,
1051 workspace,
1052 cx,
1053 )))
1054 }
1055 _ => None,
1056 };
1057 multiline_docs.map(|div| {
1058 div.id("multiline_docs")
1059 .max_h(max_height)
1060 .flex_1()
1061 .px_1p5()
1062 .py_1()
1063 .min_w(px(260.))
1064 .max_w(px(640.))
1065 .w(px(500.))
1066 .overflow_y_scroll()
1067 .occlude()
1068 })
1069 } else {
1070 None
1071 };
1072
1073 let list = uniform_list(
1074 cx.view().clone(),
1075 "completions",
1076 matches.len(),
1077 move |_editor, range, cx| {
1078 let start_ix = range.start;
1079 let completions_guard = completions.read();
1080
1081 matches[range]
1082 .iter()
1083 .enumerate()
1084 .map(|(ix, mat)| {
1085 let item_ix = start_ix + ix;
1086 let candidate_id = mat.candidate_id;
1087 let completion = &completions_guard[candidate_id];
1088
1089 let documentation = if show_completion_documentation {
1090 &completion.documentation
1091 } else {
1092 &None
1093 };
1094
1095 let highlights = gpui::combine_highlights(
1096 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1097 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1098 |(range, mut highlight)| {
1099 // Ignore font weight for syntax highlighting, as we'll use it
1100 // for fuzzy matches.
1101 highlight.font_weight = None;
1102
1103 if completion.lsp_completion.deprecated.unwrap_or(false) {
1104 highlight.strikethrough = Some(StrikethroughStyle {
1105 thickness: 1.0.into(),
1106 ..Default::default()
1107 });
1108 highlight.color = Some(cx.theme().colors().text_muted);
1109 }
1110
1111 (range, highlight)
1112 },
1113 ),
1114 );
1115 let completion_label = StyledText::new(completion.label.text.clone())
1116 .with_highlights(&style.text, highlights);
1117 let documentation_label =
1118 if let Some(Documentation::SingleLine(text)) = documentation {
1119 if text.trim().is_empty() {
1120 None
1121 } else {
1122 Some(
1123 h_flex().ml_4().child(
1124 Label::new(text.clone())
1125 .size(LabelSize::Small)
1126 .color(Color::Muted),
1127 ),
1128 )
1129 }
1130 } else {
1131 None
1132 };
1133
1134 div().min_w(px(220.)).max_w(px(540.)).child(
1135 ListItem::new(mat.candidate_id)
1136 .inset(true)
1137 .selected(item_ix == selected_item)
1138 .on_click(cx.listener(move |editor, _event, cx| {
1139 cx.stop_propagation();
1140 if let Some(task) = editor.confirm_completion(
1141 &ConfirmCompletion {
1142 item_ix: Some(item_ix),
1143 },
1144 cx,
1145 ) {
1146 task.detach_and_log_err(cx)
1147 }
1148 }))
1149 .child(h_flex().overflow_hidden().child(completion_label))
1150 .end_slot::<Div>(documentation_label),
1151 )
1152 })
1153 .collect()
1154 },
1155 )
1156 .occlude()
1157 .max_h(max_height)
1158 .track_scroll(self.scroll_handle.clone())
1159 .with_width_from_item(widest_completion_ix)
1160 .with_sizing_behavior(ListSizingBehavior::Infer);
1161
1162 Popover::new()
1163 .child(list)
1164 .when_some(multiline_docs, |popover, multiline_docs| {
1165 popover.aside(multiline_docs)
1166 })
1167 .into_any_element()
1168 }
1169
1170 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1171 let mut matches = if let Some(query) = query {
1172 fuzzy::match_strings(
1173 &self.match_candidates,
1174 query,
1175 query.chars().any(|c| c.is_uppercase()),
1176 100,
1177 &Default::default(),
1178 executor,
1179 )
1180 .await
1181 } else {
1182 self.match_candidates
1183 .iter()
1184 .enumerate()
1185 .map(|(candidate_id, candidate)| StringMatch {
1186 candidate_id,
1187 score: Default::default(),
1188 positions: Default::default(),
1189 string: candidate.string.clone(),
1190 })
1191 .collect()
1192 };
1193
1194 // Remove all candidates where the query's start does not match the start of any word in the candidate
1195 if let Some(query) = query {
1196 if let Some(query_start) = query.chars().next() {
1197 matches.retain(|string_match| {
1198 split_words(&string_match.string).any(|word| {
1199 // Check that the first codepoint of the word as lowercase matches the first
1200 // codepoint of the query as lowercase
1201 word.chars()
1202 .flat_map(|codepoint| codepoint.to_lowercase())
1203 .zip(query_start.to_lowercase())
1204 .all(|(word_cp, query_cp)| word_cp == query_cp)
1205 })
1206 });
1207 }
1208 }
1209
1210 let completions = self.completions.read();
1211 matches.sort_unstable_by_key(|mat| {
1212 // We do want to strike a balance here between what the language server tells us
1213 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1214 // `Creat` and there is a local variable called `CreateComponent`).
1215 // So what we do is: we bucket all matches into two buckets
1216 // - Strong matches
1217 // - Weak matches
1218 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1219 // and the Weak matches are the rest.
1220 //
1221 // For the strong matches, we sort by the language-servers score first and for the weak
1222 // matches, we prefer our fuzzy finder first.
1223 //
1224 // The thinking behind that: it's useless to take the sort_text the language-server gives
1225 // us into account when it's obviously a bad match.
1226
1227 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1228 enum MatchScore<'a> {
1229 Strong {
1230 sort_text: Option<&'a str>,
1231 score: Reverse<OrderedFloat<f64>>,
1232 sort_key: (usize, &'a str),
1233 },
1234 Weak {
1235 score: Reverse<OrderedFloat<f64>>,
1236 sort_text: Option<&'a str>,
1237 sort_key: (usize, &'a str),
1238 },
1239 }
1240
1241 let completion = &completions[mat.candidate_id];
1242 let sort_key = completion.sort_key();
1243 let sort_text = completion.lsp_completion.sort_text.as_deref();
1244 let score = Reverse(OrderedFloat(mat.score));
1245
1246 if mat.score >= 0.2 {
1247 MatchScore::Strong {
1248 sort_text,
1249 score,
1250 sort_key,
1251 }
1252 } else {
1253 MatchScore::Weak {
1254 score,
1255 sort_text,
1256 sort_key,
1257 }
1258 }
1259 });
1260
1261 for mat in &mut matches {
1262 let completion = &completions[mat.candidate_id];
1263 mat.string.clone_from(&completion.label.text);
1264 for position in &mut mat.positions {
1265 *position += completion.label.filter_range.start;
1266 }
1267 }
1268 drop(completions);
1269
1270 self.matches = matches.into();
1271 self.selected_item = 0;
1272 }
1273}
1274
1275#[derive(Clone)]
1276struct CodeActionContents {
1277 tasks: Option<Arc<ResolvedTasks>>,
1278 actions: Option<Arc<[CodeAction]>>,
1279}
1280
1281impl CodeActionContents {
1282 fn len(&self) -> usize {
1283 match (&self.tasks, &self.actions) {
1284 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1285 (Some(tasks), None) => tasks.templates.len(),
1286 (None, Some(actions)) => actions.len(),
1287 (None, None) => 0,
1288 }
1289 }
1290
1291 fn is_empty(&self) -> bool {
1292 match (&self.tasks, &self.actions) {
1293 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1294 (Some(tasks), None) => tasks.templates.is_empty(),
1295 (None, Some(actions)) => actions.is_empty(),
1296 (None, None) => true,
1297 }
1298 }
1299
1300 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1301 self.tasks
1302 .iter()
1303 .flat_map(|tasks| {
1304 tasks
1305 .templates
1306 .iter()
1307 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1308 })
1309 .chain(self.actions.iter().flat_map(|actions| {
1310 actions
1311 .iter()
1312 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1313 }))
1314 }
1315 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1316 match (&self.tasks, &self.actions) {
1317 (Some(tasks), Some(actions)) => {
1318 if index < tasks.templates.len() {
1319 tasks
1320 .templates
1321 .get(index)
1322 .cloned()
1323 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1324 } else {
1325 actions
1326 .get(index - tasks.templates.len())
1327 .cloned()
1328 .map(CodeActionsItem::CodeAction)
1329 }
1330 }
1331 (Some(tasks), None) => tasks
1332 .templates
1333 .get(index)
1334 .cloned()
1335 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1336 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1337 (None, None) => None,
1338 }
1339 }
1340}
1341
1342#[allow(clippy::large_enum_variant)]
1343#[derive(Clone)]
1344enum CodeActionsItem {
1345 Task(TaskSourceKind, ResolvedTask),
1346 CodeAction(CodeAction),
1347}
1348
1349impl CodeActionsItem {
1350 fn as_task(&self) -> Option<&ResolvedTask> {
1351 let Self::Task(_, task) = self else {
1352 return None;
1353 };
1354 Some(task)
1355 }
1356 fn as_code_action(&self) -> Option<&CodeAction> {
1357 let Self::CodeAction(action) = self else {
1358 return None;
1359 };
1360 Some(action)
1361 }
1362 fn label(&self) -> String {
1363 match self {
1364 Self::CodeAction(action) => action.lsp_action.title.clone(),
1365 Self::Task(_, task) => task.resolved_label.clone(),
1366 }
1367 }
1368}
1369
1370struct CodeActionsMenu {
1371 actions: CodeActionContents,
1372 buffer: Model<Buffer>,
1373 selected_item: usize,
1374 scroll_handle: UniformListScrollHandle,
1375 deployed_from_indicator: Option<DisplayRow>,
1376}
1377
1378impl CodeActionsMenu {
1379 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1380 self.selected_item = 0;
1381 self.scroll_handle.scroll_to_item(self.selected_item);
1382 cx.notify()
1383 }
1384
1385 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1386 if self.selected_item > 0 {
1387 self.selected_item -= 1;
1388 } else {
1389 self.selected_item = self.actions.len() - 1;
1390 }
1391 self.scroll_handle.scroll_to_item(self.selected_item);
1392 cx.notify();
1393 }
1394
1395 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1396 if self.selected_item + 1 < self.actions.len() {
1397 self.selected_item += 1;
1398 } else {
1399 self.selected_item = 0;
1400 }
1401 self.scroll_handle.scroll_to_item(self.selected_item);
1402 cx.notify();
1403 }
1404
1405 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1406 self.selected_item = self.actions.len() - 1;
1407 self.scroll_handle.scroll_to_item(self.selected_item);
1408 cx.notify()
1409 }
1410
1411 fn visible(&self) -> bool {
1412 !self.actions.is_empty()
1413 }
1414
1415 fn render(
1416 &self,
1417 cursor_position: DisplayPoint,
1418 _style: &EditorStyle,
1419 max_height: Pixels,
1420 cx: &mut ViewContext<Editor>,
1421 ) -> (ContextMenuOrigin, AnyElement) {
1422 let actions = self.actions.clone();
1423 let selected_item = self.selected_item;
1424 let element = uniform_list(
1425 cx.view().clone(),
1426 "code_actions_menu",
1427 self.actions.len(),
1428 move |_this, range, cx| {
1429 actions
1430 .iter()
1431 .skip(range.start)
1432 .take(range.end - range.start)
1433 .enumerate()
1434 .map(|(ix, action)| {
1435 let item_ix = range.start + ix;
1436 let selected = selected_item == item_ix;
1437 let colors = cx.theme().colors();
1438 div()
1439 .px_2()
1440 .text_color(colors.text)
1441 .when(selected, |style| {
1442 style
1443 .bg(colors.element_active)
1444 .text_color(colors.text_accent)
1445 })
1446 .hover(|style| {
1447 style
1448 .bg(colors.element_hover)
1449 .text_color(colors.text_accent)
1450 })
1451 .whitespace_nowrap()
1452 .when_some(action.as_code_action(), |this, action| {
1453 this.on_mouse_down(
1454 MouseButton::Left,
1455 cx.listener(move |editor, _, cx| {
1456 cx.stop_propagation();
1457 if let Some(task) = editor.confirm_code_action(
1458 &ConfirmCodeAction {
1459 item_ix: Some(item_ix),
1460 },
1461 cx,
1462 ) {
1463 task.detach_and_log_err(cx)
1464 }
1465 }),
1466 )
1467 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1468 .child(SharedString::from(action.lsp_action.title.clone()))
1469 })
1470 .when_some(action.as_task(), |this, task| {
1471 this.on_mouse_down(
1472 MouseButton::Left,
1473 cx.listener(move |editor, _, cx| {
1474 cx.stop_propagation();
1475 if let Some(task) = editor.confirm_code_action(
1476 &ConfirmCodeAction {
1477 item_ix: Some(item_ix),
1478 },
1479 cx,
1480 ) {
1481 task.detach_and_log_err(cx)
1482 }
1483 }),
1484 )
1485 .child(SharedString::from(task.resolved_label.clone()))
1486 })
1487 })
1488 .collect()
1489 },
1490 )
1491 .elevation_1(cx)
1492 .px_2()
1493 .py_1()
1494 .max_h(max_height)
1495 .occlude()
1496 .track_scroll(self.scroll_handle.clone())
1497 .with_width_from_item(
1498 self.actions
1499 .iter()
1500 .enumerate()
1501 .max_by_key(|(_, action)| match action {
1502 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1503 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1504 })
1505 .map(|(ix, _)| ix),
1506 )
1507 .with_sizing_behavior(ListSizingBehavior::Infer)
1508 .into_any_element();
1509
1510 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1511 ContextMenuOrigin::GutterIndicator(row)
1512 } else {
1513 ContextMenuOrigin::EditorPoint(cursor_position)
1514 };
1515
1516 (cursor_position, element)
1517 }
1518}
1519
1520#[derive(Debug)]
1521struct ActiveDiagnosticGroup {
1522 primary_range: Range<Anchor>,
1523 primary_message: String,
1524 group_id: usize,
1525 blocks: HashMap<BlockId, Diagnostic>,
1526 is_valid: bool,
1527}
1528
1529#[derive(Serialize, Deserialize, Clone, Debug)]
1530pub struct ClipboardSelection {
1531 pub len: usize,
1532 pub is_entire_line: bool,
1533 pub first_line_indent: u32,
1534}
1535
1536#[derive(Debug)]
1537pub(crate) struct NavigationData {
1538 cursor_anchor: Anchor,
1539 cursor_position: Point,
1540 scroll_anchor: ScrollAnchor,
1541 scroll_top_row: u32,
1542}
1543
1544enum GotoDefinitionKind {
1545 Symbol,
1546 Type,
1547 Implementation,
1548}
1549
1550#[derive(Debug, Clone)]
1551enum InlayHintRefreshReason {
1552 Toggle(bool),
1553 SettingsChange(InlayHintSettings),
1554 NewLinesShown,
1555 BufferEdited(HashSet<Arc<Language>>),
1556 RefreshRequested,
1557 ExcerptsRemoved(Vec<ExcerptId>),
1558}
1559
1560impl InlayHintRefreshReason {
1561 fn description(&self) -> &'static str {
1562 match self {
1563 Self::Toggle(_) => "toggle",
1564 Self::SettingsChange(_) => "settings change",
1565 Self::NewLinesShown => "new lines shown",
1566 Self::BufferEdited(_) => "buffer edited",
1567 Self::RefreshRequested => "refresh requested",
1568 Self::ExcerptsRemoved(_) => "excerpts removed",
1569 }
1570 }
1571}
1572
1573impl Editor {
1574 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1575 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1576 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1577 Self::new(EditorMode::SingleLine, buffer, None, false, cx)
1578 }
1579
1580 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1581 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1582 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1583 Self::new(EditorMode::Full, buffer, None, false, cx)
1584 }
1585
1586 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1587 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1588 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1589 Self::new(
1590 EditorMode::AutoHeight { max_lines },
1591 buffer,
1592 None,
1593 false,
1594 cx,
1595 )
1596 }
1597
1598 pub fn for_buffer(
1599 buffer: Model<Buffer>,
1600 project: Option<Model<Project>>,
1601 cx: &mut ViewContext<Self>,
1602 ) -> Self {
1603 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1604 Self::new(EditorMode::Full, buffer, project, false, cx)
1605 }
1606
1607 pub fn for_multibuffer(
1608 buffer: Model<MultiBuffer>,
1609 project: Option<Model<Project>>,
1610 show_excerpt_controls: bool,
1611 cx: &mut ViewContext<Self>,
1612 ) -> Self {
1613 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1614 }
1615
1616 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1617 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1618 let mut clone = Self::new(
1619 self.mode,
1620 self.buffer.clone(),
1621 self.project.clone(),
1622 show_excerpt_controls,
1623 cx,
1624 );
1625 self.display_map.update(cx, |display_map, cx| {
1626 let snapshot = display_map.snapshot(cx);
1627 clone.display_map.update(cx, |display_map, cx| {
1628 display_map.set_state(&snapshot, cx);
1629 });
1630 });
1631 clone.selections.clone_state(&self.selections);
1632 clone.scroll_manager.clone_state(&self.scroll_manager);
1633 clone.searchable = self.searchable;
1634 clone
1635 }
1636
1637 fn new(
1638 mode: EditorMode,
1639 buffer: Model<MultiBuffer>,
1640 project: Option<Model<Project>>,
1641 show_excerpt_controls: bool,
1642 cx: &mut ViewContext<Self>,
1643 ) -> Self {
1644 let style = cx.text_style();
1645 let font_size = style.font_size.to_pixels(cx.rem_size());
1646 let editor = cx.view().downgrade();
1647 let fold_placeholder = FoldPlaceholder {
1648 constrain_width: true,
1649 render: Arc::new(move |fold_id, fold_range, cx| {
1650 let editor = editor.clone();
1651 div()
1652 .id(fold_id)
1653 .bg(cx.theme().colors().ghost_element_background)
1654 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1655 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1656 .rounded_sm()
1657 .size_full()
1658 .cursor_pointer()
1659 .child("⋯")
1660 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1661 .on_click(move |_, cx| {
1662 editor
1663 .update(cx, |editor, cx| {
1664 editor.unfold_ranges(
1665 [fold_range.start..fold_range.end],
1666 true,
1667 false,
1668 cx,
1669 );
1670 cx.stop_propagation();
1671 })
1672 .ok();
1673 })
1674 .into_any()
1675 }),
1676 merge_adjacent: true,
1677 };
1678 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1679 let display_map = cx.new_model(|cx| {
1680 DisplayMap::new(
1681 buffer.clone(),
1682 style.font(),
1683 font_size,
1684 None,
1685 show_excerpt_controls,
1686 file_header_size,
1687 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1688 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1689 fold_placeholder,
1690 cx,
1691 )
1692 });
1693
1694 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1695
1696 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1697
1698 let soft_wrap_mode_override =
1699 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1700
1701 let mut project_subscriptions = Vec::new();
1702 if mode == EditorMode::Full {
1703 if let Some(project) = project.as_ref() {
1704 if buffer.read(cx).is_singleton() {
1705 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1706 cx.emit(EditorEvent::TitleChanged);
1707 }));
1708 }
1709 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1710 if let project::Event::RefreshInlayHints = event {
1711 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1712 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1713 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1714 let focus_handle = editor.focus_handle(cx);
1715 if focus_handle.is_focused(cx) {
1716 let snapshot = buffer.read(cx).snapshot();
1717 for (range, snippet) in snippet_edits {
1718 let editor_range =
1719 language::range_from_lsp(*range).to_offset(&snapshot);
1720 editor
1721 .insert_snippet(&[editor_range], snippet.clone(), cx)
1722 .ok();
1723 }
1724 }
1725 }
1726 }
1727 }));
1728 let task_inventory = project.read(cx).task_inventory().clone();
1729 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1730 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1731 }));
1732 }
1733 }
1734
1735 let inlay_hint_settings = inlay_hint_settings(
1736 selections.newest_anchor().head(),
1737 &buffer.read(cx).snapshot(cx),
1738 cx,
1739 );
1740 let focus_handle = cx.focus_handle();
1741 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1742 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1743 .detach();
1744 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1745
1746 let show_indent_guides = if mode == EditorMode::SingleLine {
1747 Some(false)
1748 } else {
1749 None
1750 };
1751
1752 let mut this = Self {
1753 focus_handle,
1754 last_focused_descendant: None,
1755 buffer: buffer.clone(),
1756 display_map: display_map.clone(),
1757 selections,
1758 scroll_manager: ScrollManager::new(cx),
1759 columnar_selection_tail: None,
1760 add_selections_state: None,
1761 select_next_state: None,
1762 select_prev_state: None,
1763 selection_history: Default::default(),
1764 autoclose_regions: Default::default(),
1765 snippet_stack: Default::default(),
1766 select_larger_syntax_node_stack: Vec::new(),
1767 ime_transaction: Default::default(),
1768 active_diagnostics: None,
1769 soft_wrap_mode_override,
1770 completion_provider: project.clone().map(|project| Box::new(project) as _),
1771 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1772 project,
1773 blink_manager: blink_manager.clone(),
1774 show_local_selections: true,
1775 mode,
1776 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1777 show_gutter: mode == EditorMode::Full,
1778 show_line_numbers: None,
1779 show_git_diff_gutter: None,
1780 show_code_actions: None,
1781 show_wrap_guides: None,
1782 show_indent_guides,
1783 placeholder_text: None,
1784 highlight_order: 0,
1785 highlighted_rows: HashMap::default(),
1786 background_highlights: Default::default(),
1787 gutter_highlights: TreeMap::default(),
1788 scrollbar_marker_state: ScrollbarMarkerState::default(),
1789 active_indent_guides_state: ActiveIndentGuidesState::default(),
1790 nav_history: None,
1791 context_menu: RwLock::new(None),
1792 mouse_context_menu: None,
1793 completion_tasks: Default::default(),
1794 find_all_references_task_sources: Vec::new(),
1795 next_completion_id: 0,
1796 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1797 next_inlay_id: 0,
1798 available_code_actions: Default::default(),
1799 code_actions_task: Default::default(),
1800 document_highlights_task: Default::default(),
1801 linked_editing_range_task: Default::default(),
1802 pending_rename: Default::default(),
1803 searchable: true,
1804 cursor_shape: Default::default(),
1805 current_line_highlight: None,
1806 autoindent_mode: Some(AutoindentMode::EachLine),
1807 collapse_matches: false,
1808 workspace: None,
1809 keymap_context_layers: Default::default(),
1810 input_enabled: true,
1811 use_modal_editing: mode == EditorMode::Full,
1812 read_only: false,
1813 use_autoclose: true,
1814 auto_replace_emoji_shortcode: false,
1815 leader_peer_id: None,
1816 remote_id: None,
1817 hover_state: Default::default(),
1818 hovered_link_state: Default::default(),
1819 inline_completion_provider: None,
1820 active_inline_completion: None,
1821 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1822 expanded_hunks: ExpandedHunks::default(),
1823 gutter_hovered: false,
1824 pixel_position_of_newest_cursor: None,
1825 last_bounds: None,
1826 expect_bounds_change: None,
1827 gutter_dimensions: GutterDimensions::default(),
1828 style: None,
1829 show_cursor_names: false,
1830 hovered_cursors: Default::default(),
1831 next_editor_action_id: EditorActionId::default(),
1832 editor_actions: Rc::default(),
1833 vim_replace_map: Default::default(),
1834 show_inline_completions: mode == EditorMode::Full,
1835 custom_context_menu: None,
1836 show_git_blame_gutter: false,
1837 show_git_blame_inline: false,
1838 show_selection_menu: None,
1839 show_git_blame_inline_delay_task: None,
1840 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1841 blame: None,
1842 blame_subscription: None,
1843 file_header_size,
1844 tasks: Default::default(),
1845 _subscriptions: vec![
1846 cx.observe(&buffer, Self::on_buffer_changed),
1847 cx.subscribe(&buffer, Self::on_buffer_event),
1848 cx.observe(&display_map, Self::on_display_map_changed),
1849 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1850 cx.observe_global::<SettingsStore>(Self::settings_changed),
1851 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1852 cx.observe_window_activation(|editor, cx| {
1853 let active = cx.is_window_active();
1854 editor.blink_manager.update(cx, |blink_manager, cx| {
1855 if active {
1856 blink_manager.enable(cx);
1857 } else {
1858 blink_manager.show_cursor(cx);
1859 blink_manager.disable(cx);
1860 }
1861 });
1862 }),
1863 ],
1864 tasks_update_task: None,
1865 linked_edit_ranges: Default::default(),
1866 previous_search_ranges: None,
1867 breadcrumb_header: None,
1868 };
1869 this.tasks_update_task = Some(this.refresh_runnables(cx));
1870 this._subscriptions.extend(project_subscriptions);
1871
1872 this.end_selection(cx);
1873 this.scroll_manager.show_scrollbar(cx);
1874
1875 if mode == EditorMode::Full {
1876 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1877 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1878
1879 if this.git_blame_inline_enabled {
1880 this.git_blame_inline_enabled = true;
1881 this.start_git_blame_inline(false, cx);
1882 }
1883 }
1884
1885 this.report_editor_event("open", None, cx);
1886 this
1887 }
1888
1889 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1890 self.mouse_context_menu
1891 .as_ref()
1892 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1893 }
1894
1895 fn key_context(&self, cx: &AppContext) -> KeyContext {
1896 let mut key_context = KeyContext::new_with_defaults();
1897 key_context.add("Editor");
1898 let mode = match self.mode {
1899 EditorMode::SingleLine => "single_line",
1900 EditorMode::AutoHeight { .. } => "auto_height",
1901 EditorMode::Full => "full",
1902 };
1903 key_context.set("mode", mode);
1904 if self.pending_rename.is_some() {
1905 key_context.add("renaming");
1906 }
1907 if self.context_menu_visible() {
1908 match self.context_menu.read().as_ref() {
1909 Some(ContextMenu::Completions(_)) => {
1910 key_context.add("menu");
1911 key_context.add("showing_completions")
1912 }
1913 Some(ContextMenu::CodeActions(_)) => {
1914 key_context.add("menu");
1915 key_context.add("showing_code_actions")
1916 }
1917 None => {}
1918 }
1919 }
1920
1921 for layer in self.keymap_context_layers.values() {
1922 key_context.extend(layer);
1923 }
1924
1925 if let Some(extension) = self
1926 .buffer
1927 .read(cx)
1928 .as_singleton()
1929 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1930 {
1931 key_context.set("extension", extension.to_string());
1932 }
1933
1934 if self.has_active_inline_completion(cx) {
1935 key_context.add("copilot_suggestion");
1936 key_context.add("inline_completion");
1937 }
1938
1939 key_context
1940 }
1941
1942 pub fn new_file(
1943 workspace: &mut Workspace,
1944 _: &workspace::NewFile,
1945 cx: &mut ViewContext<Workspace>,
1946 ) {
1947 let project = workspace.project().clone();
1948 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1949
1950 cx.spawn(|workspace, mut cx| async move {
1951 let buffer = create.await?;
1952 workspace.update(&mut cx, |workspace, cx| {
1953 workspace.add_item_to_active_pane(
1954 Box::new(
1955 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1956 ),
1957 None,
1958 cx,
1959 )
1960 })
1961 })
1962 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1963 ErrorCode::RemoteUpgradeRequired => Some(format!(
1964 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1965 e.error_tag("required").unwrap_or("the latest version")
1966 )),
1967 _ => None,
1968 });
1969 }
1970
1971 pub fn new_file_in_direction(
1972 workspace: &mut Workspace,
1973 action: &workspace::NewFileInDirection,
1974 cx: &mut ViewContext<Workspace>,
1975 ) {
1976 let project = workspace.project().clone();
1977 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1978 let direction = action.0;
1979
1980 cx.spawn(|workspace, mut cx| async move {
1981 let buffer = create.await?;
1982 workspace.update(&mut cx, move |workspace, cx| {
1983 workspace.split_item(
1984 direction,
1985 Box::new(
1986 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1987 ),
1988 cx,
1989 )
1990 })?;
1991 anyhow::Ok(())
1992 })
1993 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1994 ErrorCode::RemoteUpgradeRequired => Some(format!(
1995 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1996 e.error_tag("required").unwrap_or("the latest version")
1997 )),
1998 _ => None,
1999 });
2000 }
2001
2002 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2003 self.buffer.read(cx).replica_id()
2004 }
2005
2006 pub fn leader_peer_id(&self) -> Option<PeerId> {
2007 self.leader_peer_id
2008 }
2009
2010 pub fn buffer(&self) -> &Model<MultiBuffer> {
2011 &self.buffer
2012 }
2013
2014 pub fn workspace(&self) -> Option<View<Workspace>> {
2015 self.workspace.as_ref()?.0.upgrade()
2016 }
2017
2018 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2019 self.buffer().read(cx).title(cx)
2020 }
2021
2022 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2023 EditorSnapshot {
2024 mode: self.mode,
2025 show_gutter: self.show_gutter,
2026 show_line_numbers: self.show_line_numbers,
2027 show_git_diff_gutter: self.show_git_diff_gutter,
2028 show_code_actions: self.show_code_actions,
2029 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2030 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2031 scroll_anchor: self.scroll_manager.anchor(),
2032 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2033 placeholder_text: self.placeholder_text.clone(),
2034 is_focused: self.focus_handle.is_focused(cx),
2035 current_line_highlight: self
2036 .current_line_highlight
2037 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2038 gutter_hovered: self.gutter_hovered,
2039 }
2040 }
2041
2042 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2043 self.buffer.read(cx).language_at(point, cx)
2044 }
2045
2046 pub fn file_at<T: ToOffset>(
2047 &self,
2048 point: T,
2049 cx: &AppContext,
2050 ) -> Option<Arc<dyn language::File>> {
2051 self.buffer.read(cx).read(cx).file_at(point).cloned()
2052 }
2053
2054 pub fn active_excerpt(
2055 &self,
2056 cx: &AppContext,
2057 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2058 self.buffer
2059 .read(cx)
2060 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2061 }
2062
2063 pub fn mode(&self) -> EditorMode {
2064 self.mode
2065 }
2066
2067 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2068 self.collaboration_hub.as_deref()
2069 }
2070
2071 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2072 self.collaboration_hub = Some(hub);
2073 }
2074
2075 pub fn set_custom_context_menu(
2076 &mut self,
2077 f: impl 'static
2078 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2079 ) {
2080 self.custom_context_menu = Some(Box::new(f))
2081 }
2082
2083 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2084 self.completion_provider = Some(provider);
2085 }
2086
2087 pub fn set_inline_completion_provider<T>(
2088 &mut self,
2089 provider: Option<Model<T>>,
2090 cx: &mut ViewContext<Self>,
2091 ) where
2092 T: InlineCompletionProvider,
2093 {
2094 self.inline_completion_provider =
2095 provider.map(|provider| RegisteredInlineCompletionProvider {
2096 _subscription: cx.observe(&provider, |this, _, cx| {
2097 if this.focus_handle.is_focused(cx) {
2098 this.update_visible_inline_completion(cx);
2099 }
2100 }),
2101 provider: Arc::new(provider),
2102 });
2103 self.refresh_inline_completion(false, cx);
2104 }
2105
2106 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
2107 self.placeholder_text.as_deref()
2108 }
2109
2110 pub fn set_placeholder_text(
2111 &mut self,
2112 placeholder_text: impl Into<Arc<str>>,
2113 cx: &mut ViewContext<Self>,
2114 ) {
2115 let placeholder_text = Some(placeholder_text.into());
2116 if self.placeholder_text != placeholder_text {
2117 self.placeholder_text = placeholder_text;
2118 cx.notify();
2119 }
2120 }
2121
2122 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2123 self.cursor_shape = cursor_shape;
2124 cx.notify();
2125 }
2126
2127 pub fn set_current_line_highlight(
2128 &mut self,
2129 current_line_highlight: Option<CurrentLineHighlight>,
2130 ) {
2131 self.current_line_highlight = current_line_highlight;
2132 }
2133
2134 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2135 self.collapse_matches = collapse_matches;
2136 }
2137
2138 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2139 if self.collapse_matches {
2140 return range.start..range.start;
2141 }
2142 range.clone()
2143 }
2144
2145 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2146 if self.display_map.read(cx).clip_at_line_ends != clip {
2147 self.display_map
2148 .update(cx, |map, _| map.clip_at_line_ends = clip);
2149 }
2150 }
2151
2152 pub fn set_keymap_context_layer<Tag: 'static>(
2153 &mut self,
2154 context: KeyContext,
2155 cx: &mut ViewContext<Self>,
2156 ) {
2157 self.keymap_context_layers
2158 .insert(TypeId::of::<Tag>(), context);
2159 cx.notify();
2160 }
2161
2162 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2163 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2164 cx.notify();
2165 }
2166
2167 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2168 self.input_enabled = input_enabled;
2169 }
2170
2171 pub fn set_autoindent(&mut self, autoindent: bool) {
2172 if autoindent {
2173 self.autoindent_mode = Some(AutoindentMode::EachLine);
2174 } else {
2175 self.autoindent_mode = None;
2176 }
2177 }
2178
2179 pub fn read_only(&self, cx: &AppContext) -> bool {
2180 self.read_only || self.buffer.read(cx).read_only()
2181 }
2182
2183 pub fn set_read_only(&mut self, read_only: bool) {
2184 self.read_only = read_only;
2185 }
2186
2187 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2188 self.use_autoclose = autoclose;
2189 }
2190
2191 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2192 self.auto_replace_emoji_shortcode = auto_replace;
2193 }
2194
2195 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2196 self.show_inline_completions = show_inline_completions;
2197 }
2198
2199 pub fn set_use_modal_editing(&mut self, to: bool) {
2200 self.use_modal_editing = to;
2201 }
2202
2203 pub fn use_modal_editing(&self) -> bool {
2204 self.use_modal_editing
2205 }
2206
2207 fn selections_did_change(
2208 &mut self,
2209 local: bool,
2210 old_cursor_position: &Anchor,
2211 show_completions: bool,
2212 cx: &mut ViewContext<Self>,
2213 ) {
2214 // Copy selections to primary selection buffer
2215 #[cfg(target_os = "linux")]
2216 if local {
2217 let selections = &self.selections.disjoint;
2218 let buffer_handle = self.buffer.read(cx).read(cx);
2219
2220 let mut text = String::new();
2221 for (index, selection) in selections.iter().enumerate() {
2222 let text_for_selection = buffer_handle
2223 .text_for_range(selection.start..selection.end)
2224 .collect::<String>();
2225
2226 text.push_str(&text_for_selection);
2227 if index != selections.len() - 1 {
2228 text.push('\n');
2229 }
2230 }
2231
2232 if !text.is_empty() {
2233 cx.write_to_primary(ClipboardItem::new(text));
2234 }
2235 }
2236
2237 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2238 self.buffer.update(cx, |buffer, cx| {
2239 buffer.set_active_selections(
2240 &self.selections.disjoint_anchors(),
2241 self.selections.line_mode,
2242 self.cursor_shape,
2243 cx,
2244 )
2245 });
2246 }
2247 let display_map = self
2248 .display_map
2249 .update(cx, |display_map, cx| display_map.snapshot(cx));
2250 let buffer = &display_map.buffer_snapshot;
2251 self.add_selections_state = None;
2252 self.select_next_state = None;
2253 self.select_prev_state = None;
2254 self.select_larger_syntax_node_stack.clear();
2255 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2256 self.snippet_stack
2257 .invalidate(&self.selections.disjoint_anchors(), buffer);
2258 self.take_rename(false, cx);
2259
2260 let new_cursor_position = self.selections.newest_anchor().head();
2261
2262 self.push_to_nav_history(
2263 *old_cursor_position,
2264 Some(new_cursor_position.to_point(buffer)),
2265 cx,
2266 );
2267
2268 if local {
2269 let new_cursor_position = self.selections.newest_anchor().head();
2270 let mut context_menu = self.context_menu.write();
2271 let completion_menu = match context_menu.as_ref() {
2272 Some(ContextMenu::Completions(menu)) => Some(menu),
2273
2274 _ => {
2275 *context_menu = None;
2276 None
2277 }
2278 };
2279
2280 if let Some(completion_menu) = completion_menu {
2281 let cursor_position = new_cursor_position.to_offset(buffer);
2282 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2283 if kind == Some(CharKind::Word)
2284 && word_range.to_inclusive().contains(&cursor_position)
2285 {
2286 let mut completion_menu = completion_menu.clone();
2287 drop(context_menu);
2288
2289 let query = Self::completion_query(buffer, cursor_position);
2290 cx.spawn(move |this, mut cx| async move {
2291 completion_menu
2292 .filter(query.as_deref(), cx.background_executor().clone())
2293 .await;
2294
2295 this.update(&mut cx, |this, cx| {
2296 let mut context_menu = this.context_menu.write();
2297 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2298 return;
2299 };
2300
2301 if menu.id > completion_menu.id {
2302 return;
2303 }
2304
2305 *context_menu = Some(ContextMenu::Completions(completion_menu));
2306 drop(context_menu);
2307 cx.notify();
2308 })
2309 })
2310 .detach();
2311
2312 if show_completions {
2313 self.show_completions(&ShowCompletions { trigger: None }, cx);
2314 }
2315 } else {
2316 drop(context_menu);
2317 self.hide_context_menu(cx);
2318 }
2319 } else {
2320 drop(context_menu);
2321 }
2322
2323 hide_hover(self, cx);
2324
2325 if old_cursor_position.to_display_point(&display_map).row()
2326 != new_cursor_position.to_display_point(&display_map).row()
2327 {
2328 self.available_code_actions.take();
2329 }
2330 self.refresh_code_actions(cx);
2331 self.refresh_document_highlights(cx);
2332 refresh_matching_bracket_highlights(self, cx);
2333 self.discard_inline_completion(false, cx);
2334 linked_editing_ranges::refresh_linked_ranges(self, cx);
2335 if self.git_blame_inline_enabled {
2336 self.start_inline_blame_timer(cx);
2337 }
2338 }
2339
2340 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2341 cx.emit(EditorEvent::SelectionsChanged { local });
2342
2343 if self.selections.disjoint_anchors().len() == 1 {
2344 cx.emit(SearchEvent::ActiveMatchChanged)
2345 }
2346 cx.notify();
2347 }
2348
2349 pub fn change_selections<R>(
2350 &mut self,
2351 autoscroll: Option<Autoscroll>,
2352 cx: &mut ViewContext<Self>,
2353 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2354 ) -> R {
2355 self.change_selections_inner(autoscroll, true, cx, change)
2356 }
2357
2358 pub fn change_selections_inner<R>(
2359 &mut self,
2360 autoscroll: Option<Autoscroll>,
2361 request_completions: bool,
2362 cx: &mut ViewContext<Self>,
2363 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2364 ) -> R {
2365 let old_cursor_position = self.selections.newest_anchor().head();
2366 self.push_to_selection_history();
2367
2368 let (changed, result) = self.selections.change_with(cx, change);
2369
2370 if changed {
2371 if let Some(autoscroll) = autoscroll {
2372 self.request_autoscroll(autoscroll, cx);
2373 }
2374 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2375 }
2376
2377 result
2378 }
2379
2380 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2381 where
2382 I: IntoIterator<Item = (Range<S>, T)>,
2383 S: ToOffset,
2384 T: Into<Arc<str>>,
2385 {
2386 if self.read_only(cx) {
2387 return;
2388 }
2389
2390 self.buffer
2391 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2392 }
2393
2394 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2395 where
2396 I: IntoIterator<Item = (Range<S>, T)>,
2397 S: ToOffset,
2398 T: Into<Arc<str>>,
2399 {
2400 if self.read_only(cx) {
2401 return;
2402 }
2403
2404 self.buffer.update(cx, |buffer, cx| {
2405 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2406 });
2407 }
2408
2409 pub fn edit_with_block_indent<I, S, T>(
2410 &mut self,
2411 edits: I,
2412 original_indent_columns: Vec<u32>,
2413 cx: &mut ViewContext<Self>,
2414 ) where
2415 I: IntoIterator<Item = (Range<S>, T)>,
2416 S: ToOffset,
2417 T: Into<Arc<str>>,
2418 {
2419 if self.read_only(cx) {
2420 return;
2421 }
2422
2423 self.buffer.update(cx, |buffer, cx| {
2424 buffer.edit(
2425 edits,
2426 Some(AutoindentMode::Block {
2427 original_indent_columns,
2428 }),
2429 cx,
2430 )
2431 });
2432 }
2433
2434 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2435 self.hide_context_menu(cx);
2436
2437 match phase {
2438 SelectPhase::Begin {
2439 position,
2440 add,
2441 click_count,
2442 } => self.begin_selection(position, add, click_count, cx),
2443 SelectPhase::BeginColumnar {
2444 position,
2445 goal_column,
2446 reset,
2447 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2448 SelectPhase::Extend {
2449 position,
2450 click_count,
2451 } => self.extend_selection(position, click_count, cx),
2452 SelectPhase::Update {
2453 position,
2454 goal_column,
2455 scroll_delta,
2456 } => self.update_selection(position, goal_column, scroll_delta, cx),
2457 SelectPhase::End => self.end_selection(cx),
2458 }
2459 }
2460
2461 fn extend_selection(
2462 &mut self,
2463 position: DisplayPoint,
2464 click_count: usize,
2465 cx: &mut ViewContext<Self>,
2466 ) {
2467 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2468 let tail = self.selections.newest::<usize>(cx).tail();
2469 self.begin_selection(position, false, click_count, cx);
2470
2471 let position = position.to_offset(&display_map, Bias::Left);
2472 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2473
2474 let mut pending_selection = self
2475 .selections
2476 .pending_anchor()
2477 .expect("extend_selection not called with pending selection");
2478 if position >= tail {
2479 pending_selection.start = tail_anchor;
2480 } else {
2481 pending_selection.end = tail_anchor;
2482 pending_selection.reversed = true;
2483 }
2484
2485 let mut pending_mode = self.selections.pending_mode().unwrap();
2486 match &mut pending_mode {
2487 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2488 _ => {}
2489 }
2490
2491 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2492 s.set_pending(pending_selection, pending_mode)
2493 });
2494 }
2495
2496 fn begin_selection(
2497 &mut self,
2498 position: DisplayPoint,
2499 add: bool,
2500 click_count: usize,
2501 cx: &mut ViewContext<Self>,
2502 ) {
2503 if !self.focus_handle.is_focused(cx) {
2504 self.last_focused_descendant = None;
2505 cx.focus(&self.focus_handle);
2506 }
2507
2508 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2509 let buffer = &display_map.buffer_snapshot;
2510 let newest_selection = self.selections.newest_anchor().clone();
2511 let position = display_map.clip_point(position, Bias::Left);
2512
2513 let start;
2514 let end;
2515 let mode;
2516 let auto_scroll;
2517 match click_count {
2518 1 => {
2519 start = buffer.anchor_before(position.to_point(&display_map));
2520 end = start;
2521 mode = SelectMode::Character;
2522 auto_scroll = true;
2523 }
2524 2 => {
2525 let range = movement::surrounding_word(&display_map, position);
2526 start = buffer.anchor_before(range.start.to_point(&display_map));
2527 end = buffer.anchor_before(range.end.to_point(&display_map));
2528 mode = SelectMode::Word(start..end);
2529 auto_scroll = true;
2530 }
2531 3 => {
2532 let position = display_map
2533 .clip_point(position, Bias::Left)
2534 .to_point(&display_map);
2535 let line_start = display_map.prev_line_boundary(position).0;
2536 let next_line_start = buffer.clip_point(
2537 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2538 Bias::Left,
2539 );
2540 start = buffer.anchor_before(line_start);
2541 end = buffer.anchor_before(next_line_start);
2542 mode = SelectMode::Line(start..end);
2543 auto_scroll = true;
2544 }
2545 _ => {
2546 start = buffer.anchor_before(0);
2547 end = buffer.anchor_before(buffer.len());
2548 mode = SelectMode::All;
2549 auto_scroll = false;
2550 }
2551 }
2552
2553 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2554 if !add {
2555 s.clear_disjoint();
2556 } else if click_count > 1 {
2557 s.delete(newest_selection.id)
2558 }
2559
2560 s.set_pending_anchor_range(start..end, mode);
2561 });
2562 }
2563
2564 fn begin_columnar_selection(
2565 &mut self,
2566 position: DisplayPoint,
2567 goal_column: u32,
2568 reset: bool,
2569 cx: &mut ViewContext<Self>,
2570 ) {
2571 if !self.focus_handle.is_focused(cx) {
2572 self.last_focused_descendant = None;
2573 cx.focus(&self.focus_handle);
2574 }
2575
2576 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2577
2578 if reset {
2579 let pointer_position = display_map
2580 .buffer_snapshot
2581 .anchor_before(position.to_point(&display_map));
2582
2583 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2584 s.clear_disjoint();
2585 s.set_pending_anchor_range(
2586 pointer_position..pointer_position,
2587 SelectMode::Character,
2588 );
2589 });
2590 }
2591
2592 let tail = self.selections.newest::<Point>(cx).tail();
2593 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2594
2595 if !reset {
2596 self.select_columns(
2597 tail.to_display_point(&display_map),
2598 position,
2599 goal_column,
2600 &display_map,
2601 cx,
2602 );
2603 }
2604 }
2605
2606 fn update_selection(
2607 &mut self,
2608 position: DisplayPoint,
2609 goal_column: u32,
2610 scroll_delta: gpui::Point<f32>,
2611 cx: &mut ViewContext<Self>,
2612 ) {
2613 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2614
2615 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2616 let tail = tail.to_display_point(&display_map);
2617 self.select_columns(tail, position, goal_column, &display_map, cx);
2618 } else if let Some(mut pending) = self.selections.pending_anchor() {
2619 let buffer = self.buffer.read(cx).snapshot(cx);
2620 let head;
2621 let tail;
2622 let mode = self.selections.pending_mode().unwrap();
2623 match &mode {
2624 SelectMode::Character => {
2625 head = position.to_point(&display_map);
2626 tail = pending.tail().to_point(&buffer);
2627 }
2628 SelectMode::Word(original_range) => {
2629 let original_display_range = original_range.start.to_display_point(&display_map)
2630 ..original_range.end.to_display_point(&display_map);
2631 let original_buffer_range = original_display_range.start.to_point(&display_map)
2632 ..original_display_range.end.to_point(&display_map);
2633 if movement::is_inside_word(&display_map, position)
2634 || original_display_range.contains(&position)
2635 {
2636 let word_range = movement::surrounding_word(&display_map, position);
2637 if word_range.start < original_display_range.start {
2638 head = word_range.start.to_point(&display_map);
2639 } else {
2640 head = word_range.end.to_point(&display_map);
2641 }
2642 } else {
2643 head = position.to_point(&display_map);
2644 }
2645
2646 if head <= original_buffer_range.start {
2647 tail = original_buffer_range.end;
2648 } else {
2649 tail = original_buffer_range.start;
2650 }
2651 }
2652 SelectMode::Line(original_range) => {
2653 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2654
2655 let position = display_map
2656 .clip_point(position, Bias::Left)
2657 .to_point(&display_map);
2658 let line_start = display_map.prev_line_boundary(position).0;
2659 let next_line_start = buffer.clip_point(
2660 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2661 Bias::Left,
2662 );
2663
2664 if line_start < original_range.start {
2665 head = line_start
2666 } else {
2667 head = next_line_start
2668 }
2669
2670 if head <= original_range.start {
2671 tail = original_range.end;
2672 } else {
2673 tail = original_range.start;
2674 }
2675 }
2676 SelectMode::All => {
2677 return;
2678 }
2679 };
2680
2681 if head < tail {
2682 pending.start = buffer.anchor_before(head);
2683 pending.end = buffer.anchor_before(tail);
2684 pending.reversed = true;
2685 } else {
2686 pending.start = buffer.anchor_before(tail);
2687 pending.end = buffer.anchor_before(head);
2688 pending.reversed = false;
2689 }
2690
2691 self.change_selections(None, cx, |s| {
2692 s.set_pending(pending, mode);
2693 });
2694 } else {
2695 log::error!("update_selection dispatched with no pending selection");
2696 return;
2697 }
2698
2699 self.apply_scroll_delta(scroll_delta, cx);
2700 cx.notify();
2701 }
2702
2703 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2704 self.columnar_selection_tail.take();
2705 if self.selections.pending_anchor().is_some() {
2706 let selections = self.selections.all::<usize>(cx);
2707 self.change_selections(None, cx, |s| {
2708 s.select(selections);
2709 s.clear_pending();
2710 });
2711 }
2712 }
2713
2714 fn select_columns(
2715 &mut self,
2716 tail: DisplayPoint,
2717 head: DisplayPoint,
2718 goal_column: u32,
2719 display_map: &DisplaySnapshot,
2720 cx: &mut ViewContext<Self>,
2721 ) {
2722 let start_row = cmp::min(tail.row(), head.row());
2723 let end_row = cmp::max(tail.row(), head.row());
2724 let start_column = cmp::min(tail.column(), goal_column);
2725 let end_column = cmp::max(tail.column(), goal_column);
2726 let reversed = start_column < tail.column();
2727
2728 let selection_ranges = (start_row.0..=end_row.0)
2729 .map(DisplayRow)
2730 .filter_map(|row| {
2731 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2732 let start = display_map
2733 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2734 .to_point(display_map);
2735 let end = display_map
2736 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2737 .to_point(display_map);
2738 if reversed {
2739 Some(end..start)
2740 } else {
2741 Some(start..end)
2742 }
2743 } else {
2744 None
2745 }
2746 })
2747 .collect::<Vec<_>>();
2748
2749 self.change_selections(None, cx, |s| {
2750 s.select_ranges(selection_ranges);
2751 });
2752 cx.notify();
2753 }
2754
2755 pub fn has_pending_nonempty_selection(&self) -> bool {
2756 let pending_nonempty_selection = match self.selections.pending_anchor() {
2757 Some(Selection { start, end, .. }) => start != end,
2758 None => false,
2759 };
2760
2761 pending_nonempty_selection
2762 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2763 }
2764
2765 pub fn has_pending_selection(&self) -> bool {
2766 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2767 }
2768
2769 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2770 self.clear_expanded_diff_hunks(cx);
2771 if self.dismiss_menus_and_popups(true, cx) {
2772 return;
2773 }
2774
2775 if self.mode == EditorMode::Full {
2776 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2777 return;
2778 }
2779 }
2780
2781 cx.propagate();
2782 }
2783
2784 pub fn dismiss_menus_and_popups(
2785 &mut self,
2786 should_report_inline_completion_event: bool,
2787 cx: &mut ViewContext<Self>,
2788 ) -> bool {
2789 if self.take_rename(false, cx).is_some() {
2790 return true;
2791 }
2792
2793 if hide_hover(self, cx) {
2794 return true;
2795 }
2796
2797 if self.hide_context_menu(cx).is_some() {
2798 return true;
2799 }
2800
2801 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2802 return true;
2803 }
2804
2805 if self.snippet_stack.pop().is_some() {
2806 return true;
2807 }
2808
2809 if self.mode == EditorMode::Full {
2810 if self.active_diagnostics.is_some() {
2811 self.dismiss_diagnostics(cx);
2812 return true;
2813 }
2814 }
2815
2816 false
2817 }
2818
2819 fn linked_editing_ranges_for(
2820 &self,
2821 selection: Range<text::Anchor>,
2822 cx: &AppContext,
2823 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2824 if self.linked_edit_ranges.is_empty() {
2825 return None;
2826 }
2827 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2828 selection.end.buffer_id.and_then(|end_buffer_id| {
2829 if selection.start.buffer_id != Some(end_buffer_id) {
2830 return None;
2831 }
2832 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2833 let snapshot = buffer.read(cx).snapshot();
2834 self.linked_edit_ranges
2835 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2836 .map(|ranges| (ranges, snapshot, buffer))
2837 })?;
2838 use text::ToOffset as TO;
2839 // find offset from the start of current range to current cursor position
2840 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2841
2842 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2843 let start_difference = start_offset - start_byte_offset;
2844 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2845 let end_difference = end_offset - start_byte_offset;
2846 // Current range has associated linked ranges.
2847 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2848 for range in linked_ranges.iter() {
2849 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2850 let end_offset = start_offset + end_difference;
2851 let start_offset = start_offset + start_difference;
2852 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2853 continue;
2854 }
2855 let start = buffer_snapshot.anchor_after(start_offset);
2856 let end = buffer_snapshot.anchor_after(end_offset);
2857 linked_edits
2858 .entry(buffer.clone())
2859 .or_default()
2860 .push(start..end);
2861 }
2862 Some(linked_edits)
2863 }
2864
2865 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2866 let text: Arc<str> = text.into();
2867
2868 if self.read_only(cx) {
2869 return;
2870 }
2871
2872 let selections = self.selections.all_adjusted(cx);
2873 let mut brace_inserted = false;
2874 let mut edits = Vec::new();
2875 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2876 let mut new_selections = Vec::with_capacity(selections.len());
2877 let mut new_autoclose_regions = Vec::new();
2878 let snapshot = self.buffer.read(cx).read(cx);
2879
2880 for (selection, autoclose_region) in
2881 self.selections_with_autoclose_regions(selections, &snapshot)
2882 {
2883 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2884 // Determine if the inserted text matches the opening or closing
2885 // bracket of any of this language's bracket pairs.
2886 let mut bracket_pair = None;
2887 let mut is_bracket_pair_start = false;
2888 let mut is_bracket_pair_end = false;
2889 if !text.is_empty() {
2890 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2891 // and they are removing the character that triggered IME popup.
2892 for (pair, enabled) in scope.brackets() {
2893 if !pair.close {
2894 continue;
2895 }
2896
2897 if enabled && pair.start.ends_with(text.as_ref()) {
2898 bracket_pair = Some(pair.clone());
2899 is_bracket_pair_start = true;
2900 break;
2901 }
2902 if pair.end.as_str() == text.as_ref() {
2903 bracket_pair = Some(pair.clone());
2904 is_bracket_pair_end = true;
2905 break;
2906 }
2907 }
2908 }
2909
2910 if let Some(bracket_pair) = bracket_pair {
2911 let autoclose = self.use_autoclose
2912 && snapshot.settings_at(selection.start, cx).use_autoclose;
2913
2914 if selection.is_empty() {
2915 if is_bracket_pair_start {
2916 let prefix_len = bracket_pair.start.len() - text.len();
2917
2918 // If the inserted text is a suffix of an opening bracket and the
2919 // selection is preceded by the rest of the opening bracket, then
2920 // insert the closing bracket.
2921 let following_text_allows_autoclose = snapshot
2922 .chars_at(selection.start)
2923 .next()
2924 .map_or(true, |c| scope.should_autoclose_before(c));
2925 let preceding_text_matches_prefix = prefix_len == 0
2926 || (selection.start.column >= (prefix_len as u32)
2927 && snapshot.contains_str_at(
2928 Point::new(
2929 selection.start.row,
2930 selection.start.column - (prefix_len as u32),
2931 ),
2932 &bracket_pair.start[..prefix_len],
2933 ));
2934 if autoclose
2935 && following_text_allows_autoclose
2936 && preceding_text_matches_prefix
2937 {
2938 let anchor = snapshot.anchor_before(selection.end);
2939 new_selections.push((selection.map(|_| anchor), text.len()));
2940 new_autoclose_regions.push((
2941 anchor,
2942 text.len(),
2943 selection.id,
2944 bracket_pair.clone(),
2945 ));
2946 edits.push((
2947 selection.range(),
2948 format!("{}{}", text, bracket_pair.end).into(),
2949 ));
2950 brace_inserted = true;
2951 continue;
2952 }
2953 }
2954
2955 if let Some(region) = autoclose_region {
2956 // If the selection is followed by an auto-inserted closing bracket,
2957 // then don't insert that closing bracket again; just move the selection
2958 // past the closing bracket.
2959 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2960 && text.as_ref() == region.pair.end.as_str();
2961 if should_skip {
2962 let anchor = snapshot.anchor_after(selection.end);
2963 new_selections
2964 .push((selection.map(|_| anchor), region.pair.end.len()));
2965 continue;
2966 }
2967 }
2968
2969 let always_treat_brackets_as_autoclosed = snapshot
2970 .settings_at(selection.start, cx)
2971 .always_treat_brackets_as_autoclosed;
2972 if always_treat_brackets_as_autoclosed
2973 && is_bracket_pair_end
2974 && snapshot.contains_str_at(selection.end, text.as_ref())
2975 {
2976 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2977 // and the inserted text is a closing bracket and the selection is followed
2978 // by the closing bracket then move the selection past the closing bracket.
2979 let anchor = snapshot.anchor_after(selection.end);
2980 new_selections.push((selection.map(|_| anchor), text.len()));
2981 continue;
2982 }
2983 }
2984 // If an opening bracket is 1 character long and is typed while
2985 // text is selected, then surround that text with the bracket pair.
2986 else if autoclose
2987 && is_bracket_pair_start
2988 && bracket_pair.start.chars().count() == 1
2989 {
2990 edits.push((selection.start..selection.start, text.clone()));
2991 edits.push((
2992 selection.end..selection.end,
2993 bracket_pair.end.as_str().into(),
2994 ));
2995 brace_inserted = true;
2996 new_selections.push((
2997 Selection {
2998 id: selection.id,
2999 start: snapshot.anchor_after(selection.start),
3000 end: snapshot.anchor_before(selection.end),
3001 reversed: selection.reversed,
3002 goal: selection.goal,
3003 },
3004 0,
3005 ));
3006 continue;
3007 }
3008 }
3009 }
3010
3011 if self.auto_replace_emoji_shortcode
3012 && selection.is_empty()
3013 && text.as_ref().ends_with(':')
3014 {
3015 if let Some(possible_emoji_short_code) =
3016 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3017 {
3018 if !possible_emoji_short_code.is_empty() {
3019 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3020 let emoji_shortcode_start = Point::new(
3021 selection.start.row,
3022 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3023 );
3024
3025 // Remove shortcode from buffer
3026 edits.push((
3027 emoji_shortcode_start..selection.start,
3028 "".to_string().into(),
3029 ));
3030 new_selections.push((
3031 Selection {
3032 id: selection.id,
3033 start: snapshot.anchor_after(emoji_shortcode_start),
3034 end: snapshot.anchor_before(selection.start),
3035 reversed: selection.reversed,
3036 goal: selection.goal,
3037 },
3038 0,
3039 ));
3040
3041 // Insert emoji
3042 let selection_start_anchor = snapshot.anchor_after(selection.start);
3043 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3044 edits.push((selection.start..selection.end, emoji.to_string().into()));
3045
3046 continue;
3047 }
3048 }
3049 }
3050 }
3051
3052 // If not handling any auto-close operation, then just replace the selected
3053 // text with the given input and move the selection to the end of the
3054 // newly inserted text.
3055 let anchor = snapshot.anchor_after(selection.end);
3056 if !self.linked_edit_ranges.is_empty() {
3057 let start_anchor = snapshot.anchor_before(selection.start);
3058 if let Some(ranges) =
3059 self.linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3060 {
3061 for (buffer, edits) in ranges {
3062 linked_edits
3063 .entry(buffer.clone())
3064 .or_default()
3065 .extend(edits.into_iter().map(|range| (range, text.clone())));
3066 }
3067 }
3068 }
3069
3070 new_selections.push((selection.map(|_| anchor), 0));
3071 edits.push((selection.start..selection.end, text.clone()));
3072 }
3073
3074 drop(snapshot);
3075
3076 self.transact(cx, |this, cx| {
3077 this.buffer.update(cx, |buffer, cx| {
3078 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3079 });
3080 for (buffer, edits) in linked_edits {
3081 buffer.update(cx, |buffer, cx| {
3082 let snapshot = buffer.snapshot();
3083 let edits = edits
3084 .into_iter()
3085 .map(|(range, text)| {
3086 use text::ToPoint as TP;
3087 let end_point = TP::to_point(&range.end, &snapshot);
3088 let start_point = TP::to_point(&range.start, &snapshot);
3089 (start_point..end_point, text)
3090 })
3091 .sorted_by_key(|(range, _)| range.start)
3092 .collect::<Vec<_>>();
3093 buffer.edit(edits, None, cx);
3094 })
3095 }
3096 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3097 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3098 let snapshot = this.buffer.read(cx).read(cx);
3099 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3100 .zip(new_selection_deltas)
3101 .map(|(selection, delta)| Selection {
3102 id: selection.id,
3103 start: selection.start + delta,
3104 end: selection.end + delta,
3105 reversed: selection.reversed,
3106 goal: SelectionGoal::None,
3107 })
3108 .collect::<Vec<_>>();
3109
3110 let mut i = 0;
3111 for (position, delta, selection_id, pair) in new_autoclose_regions {
3112 let position = position.to_offset(&snapshot) + delta;
3113 let start = snapshot.anchor_before(position);
3114 let end = snapshot.anchor_after(position);
3115 while let Some(existing_state) = this.autoclose_regions.get(i) {
3116 match existing_state.range.start.cmp(&start, &snapshot) {
3117 Ordering::Less => i += 1,
3118 Ordering::Greater => break,
3119 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3120 Ordering::Less => i += 1,
3121 Ordering::Equal => break,
3122 Ordering::Greater => break,
3123 },
3124 }
3125 }
3126 this.autoclose_regions.insert(
3127 i,
3128 AutocloseRegion {
3129 selection_id,
3130 range: start..end,
3131 pair,
3132 },
3133 );
3134 }
3135
3136 drop(snapshot);
3137 let had_active_inline_completion = this.has_active_inline_completion(cx);
3138 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3139 s.select(new_selections)
3140 });
3141
3142 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
3143 if let Some(on_type_format_task) =
3144 this.trigger_on_type_formatting(text.to_string(), cx)
3145 {
3146 on_type_format_task.detach_and_log_err(cx);
3147 }
3148 }
3149
3150 let trigger_in_words = !had_active_inline_completion;
3151 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3152 linked_editing_ranges::refresh_linked_ranges(this, cx);
3153 this.refresh_inline_completion(true, cx);
3154 });
3155 }
3156
3157 fn find_possible_emoji_shortcode_at_position(
3158 snapshot: &MultiBufferSnapshot,
3159 position: Point,
3160 ) -> Option<String> {
3161 let mut chars = Vec::new();
3162 let mut found_colon = false;
3163 for char in snapshot.reversed_chars_at(position).take(100) {
3164 // Found a possible emoji shortcode in the middle of the buffer
3165 if found_colon {
3166 if char.is_whitespace() {
3167 chars.reverse();
3168 return Some(chars.iter().collect());
3169 }
3170 // If the previous character is not a whitespace, we are in the middle of a word
3171 // and we only want to complete the shortcode if the word is made up of other emojis
3172 let mut containing_word = String::new();
3173 for ch in snapshot
3174 .reversed_chars_at(position)
3175 .skip(chars.len() + 1)
3176 .take(100)
3177 {
3178 if ch.is_whitespace() {
3179 break;
3180 }
3181 containing_word.push(ch);
3182 }
3183 let containing_word = containing_word.chars().rev().collect::<String>();
3184 if util::word_consists_of_emojis(containing_word.as_str()) {
3185 chars.reverse();
3186 return Some(chars.iter().collect());
3187 }
3188 }
3189
3190 if char.is_whitespace() || !char.is_ascii() {
3191 return None;
3192 }
3193 if char == ':' {
3194 found_colon = true;
3195 } else {
3196 chars.push(char);
3197 }
3198 }
3199 // Found a possible emoji shortcode at the beginning of the buffer
3200 chars.reverse();
3201 Some(chars.iter().collect())
3202 }
3203
3204 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3205 self.transact(cx, |this, cx| {
3206 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3207 let selections = this.selections.all::<usize>(cx);
3208 let multi_buffer = this.buffer.read(cx);
3209 let buffer = multi_buffer.snapshot(cx);
3210 selections
3211 .iter()
3212 .map(|selection| {
3213 let start_point = selection.start.to_point(&buffer);
3214 let mut indent =
3215 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3216 indent.len = cmp::min(indent.len, start_point.column);
3217 let start = selection.start;
3218 let end = selection.end;
3219 let selection_is_empty = start == end;
3220 let language_scope = buffer.language_scope_at(start);
3221 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3222 &language_scope
3223 {
3224 let leading_whitespace_len = buffer
3225 .reversed_chars_at(start)
3226 .take_while(|c| c.is_whitespace() && *c != '\n')
3227 .map(|c| c.len_utf8())
3228 .sum::<usize>();
3229
3230 let trailing_whitespace_len = buffer
3231 .chars_at(end)
3232 .take_while(|c| c.is_whitespace() && *c != '\n')
3233 .map(|c| c.len_utf8())
3234 .sum::<usize>();
3235
3236 let insert_extra_newline =
3237 language.brackets().any(|(pair, enabled)| {
3238 let pair_start = pair.start.trim_end();
3239 let pair_end = pair.end.trim_start();
3240
3241 enabled
3242 && pair.newline
3243 && buffer.contains_str_at(
3244 end + trailing_whitespace_len,
3245 pair_end,
3246 )
3247 && buffer.contains_str_at(
3248 (start - leading_whitespace_len)
3249 .saturating_sub(pair_start.len()),
3250 pair_start,
3251 )
3252 });
3253
3254 // Comment extension on newline is allowed only for cursor selections
3255 let comment_delimiter = maybe!({
3256 if !selection_is_empty {
3257 return None;
3258 }
3259
3260 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3261 return None;
3262 }
3263
3264 let delimiters = language.line_comment_prefixes();
3265 let max_len_of_delimiter =
3266 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3267 let (snapshot, range) =
3268 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3269
3270 let mut index_of_first_non_whitespace = 0;
3271 let comment_candidate = snapshot
3272 .chars_for_range(range)
3273 .skip_while(|c| {
3274 let should_skip = c.is_whitespace();
3275 if should_skip {
3276 index_of_first_non_whitespace += 1;
3277 }
3278 should_skip
3279 })
3280 .take(max_len_of_delimiter)
3281 .collect::<String>();
3282 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3283 comment_candidate.starts_with(comment_prefix.as_ref())
3284 })?;
3285 let cursor_is_placed_after_comment_marker =
3286 index_of_first_non_whitespace + comment_prefix.len()
3287 <= start_point.column as usize;
3288 if cursor_is_placed_after_comment_marker {
3289 Some(comment_prefix.clone())
3290 } else {
3291 None
3292 }
3293 });
3294 (comment_delimiter, insert_extra_newline)
3295 } else {
3296 (None, false)
3297 };
3298
3299 let capacity_for_delimiter = comment_delimiter
3300 .as_deref()
3301 .map(str::len)
3302 .unwrap_or_default();
3303 let mut new_text =
3304 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3305 new_text.push_str("\n");
3306 new_text.extend(indent.chars());
3307 if let Some(delimiter) = &comment_delimiter {
3308 new_text.push_str(&delimiter);
3309 }
3310 if insert_extra_newline {
3311 new_text = new_text.repeat(2);
3312 }
3313
3314 let anchor = buffer.anchor_after(end);
3315 let new_selection = selection.map(|_| anchor);
3316 (
3317 (start..end, new_text),
3318 (insert_extra_newline, new_selection),
3319 )
3320 })
3321 .unzip()
3322 };
3323
3324 this.edit_with_autoindent(edits, cx);
3325 let buffer = this.buffer.read(cx).snapshot(cx);
3326 let new_selections = selection_fixup_info
3327 .into_iter()
3328 .map(|(extra_newline_inserted, new_selection)| {
3329 let mut cursor = new_selection.end.to_point(&buffer);
3330 if extra_newline_inserted {
3331 cursor.row -= 1;
3332 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3333 }
3334 new_selection.map(|_| cursor)
3335 })
3336 .collect();
3337
3338 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3339 this.refresh_inline_completion(true, cx);
3340 });
3341 }
3342
3343 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3344 let buffer = self.buffer.read(cx);
3345 let snapshot = buffer.snapshot(cx);
3346
3347 let mut edits = Vec::new();
3348 let mut rows = Vec::new();
3349
3350 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3351 let cursor = selection.head();
3352 let row = cursor.row;
3353
3354 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3355
3356 let newline = "\n".to_string();
3357 edits.push((start_of_line..start_of_line, newline));
3358
3359 rows.push(row + rows_inserted as u32);
3360 }
3361
3362 self.transact(cx, |editor, cx| {
3363 editor.edit(edits, cx);
3364
3365 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3366 let mut index = 0;
3367 s.move_cursors_with(|map, _, _| {
3368 let row = rows[index];
3369 index += 1;
3370
3371 let point = Point::new(row, 0);
3372 let boundary = map.next_line_boundary(point).1;
3373 let clipped = map.clip_point(boundary, Bias::Left);
3374
3375 (clipped, SelectionGoal::None)
3376 });
3377 });
3378
3379 let mut indent_edits = Vec::new();
3380 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3381 for row in rows {
3382 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3383 for (row, indent) in indents {
3384 if indent.len == 0 {
3385 continue;
3386 }
3387
3388 let text = match indent.kind {
3389 IndentKind::Space => " ".repeat(indent.len as usize),
3390 IndentKind::Tab => "\t".repeat(indent.len as usize),
3391 };
3392 let point = Point::new(row.0, 0);
3393 indent_edits.push((point..point, text));
3394 }
3395 }
3396 editor.edit(indent_edits, cx);
3397 });
3398 }
3399
3400 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3401 let buffer = self.buffer.read(cx);
3402 let snapshot = buffer.snapshot(cx);
3403
3404 let mut edits = Vec::new();
3405 let mut rows = Vec::new();
3406 let mut rows_inserted = 0;
3407
3408 for selection in self.selections.all_adjusted(cx) {
3409 let cursor = selection.head();
3410 let row = cursor.row;
3411
3412 let point = Point::new(row + 1, 0);
3413 let start_of_line = snapshot.clip_point(point, Bias::Left);
3414
3415 let newline = "\n".to_string();
3416 edits.push((start_of_line..start_of_line, newline));
3417
3418 rows_inserted += 1;
3419 rows.push(row + rows_inserted);
3420 }
3421
3422 self.transact(cx, |editor, cx| {
3423 editor.edit(edits, cx);
3424
3425 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3426 let mut index = 0;
3427 s.move_cursors_with(|map, _, _| {
3428 let row = rows[index];
3429 index += 1;
3430
3431 let point = Point::new(row, 0);
3432 let boundary = map.next_line_boundary(point).1;
3433 let clipped = map.clip_point(boundary, Bias::Left);
3434
3435 (clipped, SelectionGoal::None)
3436 });
3437 });
3438
3439 let mut indent_edits = Vec::new();
3440 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3441 for row in rows {
3442 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3443 for (row, indent) in indents {
3444 if indent.len == 0 {
3445 continue;
3446 }
3447
3448 let text = match indent.kind {
3449 IndentKind::Space => " ".repeat(indent.len as usize),
3450 IndentKind::Tab => "\t".repeat(indent.len as usize),
3451 };
3452 let point = Point::new(row.0, 0);
3453 indent_edits.push((point..point, text));
3454 }
3455 }
3456 editor.edit(indent_edits, cx);
3457 });
3458 }
3459
3460 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3461 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3462 original_indent_columns: Vec::new(),
3463 });
3464 self.insert_with_autoindent_mode(text, autoindent, cx);
3465 }
3466
3467 fn insert_with_autoindent_mode(
3468 &mut self,
3469 text: &str,
3470 autoindent_mode: Option<AutoindentMode>,
3471 cx: &mut ViewContext<Self>,
3472 ) {
3473 if self.read_only(cx) {
3474 return;
3475 }
3476
3477 let text: Arc<str> = text.into();
3478 self.transact(cx, |this, cx| {
3479 let old_selections = this.selections.all_adjusted(cx);
3480 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3481 let anchors = {
3482 let snapshot = buffer.read(cx);
3483 old_selections
3484 .iter()
3485 .map(|s| {
3486 let anchor = snapshot.anchor_after(s.head());
3487 s.map(|_| anchor)
3488 })
3489 .collect::<Vec<_>>()
3490 };
3491 buffer.edit(
3492 old_selections
3493 .iter()
3494 .map(|s| (s.start..s.end, text.clone())),
3495 autoindent_mode,
3496 cx,
3497 );
3498 anchors
3499 });
3500
3501 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3502 s.select_anchors(selection_anchors);
3503 })
3504 });
3505 }
3506
3507 fn trigger_completion_on_input(
3508 &mut self,
3509 text: &str,
3510 trigger_in_words: bool,
3511 cx: &mut ViewContext<Self>,
3512 ) {
3513 if self.is_completion_trigger(text, trigger_in_words, cx) {
3514 self.show_completions(
3515 &ShowCompletions {
3516 trigger: text.chars().last(),
3517 },
3518 cx,
3519 );
3520 } else {
3521 self.hide_context_menu(cx);
3522 }
3523 }
3524
3525 fn is_completion_trigger(
3526 &self,
3527 text: &str,
3528 trigger_in_words: bool,
3529 cx: &mut ViewContext<Self>,
3530 ) -> bool {
3531 let position = self.selections.newest_anchor().head();
3532 let multibuffer = self.buffer.read(cx);
3533 let Some(buffer) = position
3534 .buffer_id
3535 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3536 else {
3537 return false;
3538 };
3539
3540 if let Some(completion_provider) = &self.completion_provider {
3541 completion_provider.is_completion_trigger(
3542 &buffer,
3543 position.text_anchor,
3544 text,
3545 trigger_in_words,
3546 cx,
3547 )
3548 } else {
3549 false
3550 }
3551 }
3552
3553 /// If any empty selections is touching the start of its innermost containing autoclose
3554 /// region, expand it to select the brackets.
3555 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3556 let selections = self.selections.all::<usize>(cx);
3557 let buffer = self.buffer.read(cx).read(cx);
3558 let new_selections = self
3559 .selections_with_autoclose_regions(selections, &buffer)
3560 .map(|(mut selection, region)| {
3561 if !selection.is_empty() {
3562 return selection;
3563 }
3564
3565 if let Some(region) = region {
3566 let mut range = region.range.to_offset(&buffer);
3567 if selection.start == range.start && range.start >= region.pair.start.len() {
3568 range.start -= region.pair.start.len();
3569 if buffer.contains_str_at(range.start, ®ion.pair.start)
3570 && buffer.contains_str_at(range.end, ®ion.pair.end)
3571 {
3572 range.end += region.pair.end.len();
3573 selection.start = range.start;
3574 selection.end = range.end;
3575
3576 return selection;
3577 }
3578 }
3579 }
3580
3581 let always_treat_brackets_as_autoclosed = buffer
3582 .settings_at(selection.start, cx)
3583 .always_treat_brackets_as_autoclosed;
3584
3585 if !always_treat_brackets_as_autoclosed {
3586 return selection;
3587 }
3588
3589 if let Some(scope) = buffer.language_scope_at(selection.start) {
3590 for (pair, enabled) in scope.brackets() {
3591 if !enabled || !pair.close {
3592 continue;
3593 }
3594
3595 if buffer.contains_str_at(selection.start, &pair.end) {
3596 let pair_start_len = pair.start.len();
3597 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3598 {
3599 selection.start -= pair_start_len;
3600 selection.end += pair.end.len();
3601
3602 return selection;
3603 }
3604 }
3605 }
3606 }
3607
3608 selection
3609 })
3610 .collect();
3611
3612 drop(buffer);
3613 self.change_selections(None, cx, |selections| selections.select(new_selections));
3614 }
3615
3616 /// Iterate the given selections, and for each one, find the smallest surrounding
3617 /// autoclose region. This uses the ordering of the selections and the autoclose
3618 /// regions to avoid repeated comparisons.
3619 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3620 &'a self,
3621 selections: impl IntoIterator<Item = Selection<D>>,
3622 buffer: &'a MultiBufferSnapshot,
3623 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3624 let mut i = 0;
3625 let mut regions = self.autoclose_regions.as_slice();
3626 selections.into_iter().map(move |selection| {
3627 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3628
3629 let mut enclosing = None;
3630 while let Some(pair_state) = regions.get(i) {
3631 if pair_state.range.end.to_offset(buffer) < range.start {
3632 regions = ®ions[i + 1..];
3633 i = 0;
3634 } else if pair_state.range.start.to_offset(buffer) > range.end {
3635 break;
3636 } else {
3637 if pair_state.selection_id == selection.id {
3638 enclosing = Some(pair_state);
3639 }
3640 i += 1;
3641 }
3642 }
3643
3644 (selection.clone(), enclosing)
3645 })
3646 }
3647
3648 /// Remove any autoclose regions that no longer contain their selection.
3649 fn invalidate_autoclose_regions(
3650 &mut self,
3651 mut selections: &[Selection<Anchor>],
3652 buffer: &MultiBufferSnapshot,
3653 ) {
3654 self.autoclose_regions.retain(|state| {
3655 let mut i = 0;
3656 while let Some(selection) = selections.get(i) {
3657 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3658 selections = &selections[1..];
3659 continue;
3660 }
3661 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3662 break;
3663 }
3664 if selection.id == state.selection_id {
3665 return true;
3666 } else {
3667 i += 1;
3668 }
3669 }
3670 false
3671 });
3672 }
3673
3674 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3675 let offset = position.to_offset(buffer);
3676 let (word_range, kind) = buffer.surrounding_word(offset);
3677 if offset > word_range.start && kind == Some(CharKind::Word) {
3678 Some(
3679 buffer
3680 .text_for_range(word_range.start..offset)
3681 .collect::<String>(),
3682 )
3683 } else {
3684 None
3685 }
3686 }
3687
3688 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3689 self.refresh_inlay_hints(
3690 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3691 cx,
3692 );
3693 }
3694
3695 pub fn inlay_hints_enabled(&self) -> bool {
3696 self.inlay_hint_cache.enabled
3697 }
3698
3699 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3700 if self.project.is_none() || self.mode != EditorMode::Full {
3701 return;
3702 }
3703
3704 let reason_description = reason.description();
3705 let ignore_debounce = matches!(
3706 reason,
3707 InlayHintRefreshReason::SettingsChange(_)
3708 | InlayHintRefreshReason::Toggle(_)
3709 | InlayHintRefreshReason::ExcerptsRemoved(_)
3710 );
3711 let (invalidate_cache, required_languages) = match reason {
3712 InlayHintRefreshReason::Toggle(enabled) => {
3713 self.inlay_hint_cache.enabled = enabled;
3714 if enabled {
3715 (InvalidationStrategy::RefreshRequested, None)
3716 } else {
3717 self.inlay_hint_cache.clear();
3718 self.splice_inlays(
3719 self.visible_inlay_hints(cx)
3720 .iter()
3721 .map(|inlay| inlay.id)
3722 .collect(),
3723 Vec::new(),
3724 cx,
3725 );
3726 return;
3727 }
3728 }
3729 InlayHintRefreshReason::SettingsChange(new_settings) => {
3730 match self.inlay_hint_cache.update_settings(
3731 &self.buffer,
3732 new_settings,
3733 self.visible_inlay_hints(cx),
3734 cx,
3735 ) {
3736 ControlFlow::Break(Some(InlaySplice {
3737 to_remove,
3738 to_insert,
3739 })) => {
3740 self.splice_inlays(to_remove, to_insert, cx);
3741 return;
3742 }
3743 ControlFlow::Break(None) => return,
3744 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3745 }
3746 }
3747 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3748 if let Some(InlaySplice {
3749 to_remove,
3750 to_insert,
3751 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3752 {
3753 self.splice_inlays(to_remove, to_insert, cx);
3754 }
3755 return;
3756 }
3757 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3758 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3759 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3760 }
3761 InlayHintRefreshReason::RefreshRequested => {
3762 (InvalidationStrategy::RefreshRequested, None)
3763 }
3764 };
3765
3766 if let Some(InlaySplice {
3767 to_remove,
3768 to_insert,
3769 }) = self.inlay_hint_cache.spawn_hint_refresh(
3770 reason_description,
3771 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3772 invalidate_cache,
3773 ignore_debounce,
3774 cx,
3775 ) {
3776 self.splice_inlays(to_remove, to_insert, cx);
3777 }
3778 }
3779
3780 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3781 self.display_map
3782 .read(cx)
3783 .current_inlays()
3784 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3785 .cloned()
3786 .collect()
3787 }
3788
3789 pub fn excerpts_for_inlay_hints_query(
3790 &self,
3791 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3792 cx: &mut ViewContext<Editor>,
3793 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3794 let Some(project) = self.project.as_ref() else {
3795 return HashMap::default();
3796 };
3797 let project = project.read(cx);
3798 let multi_buffer = self.buffer().read(cx);
3799 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3800 let multi_buffer_visible_start = self
3801 .scroll_manager
3802 .anchor()
3803 .anchor
3804 .to_point(&multi_buffer_snapshot);
3805 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3806 multi_buffer_visible_start
3807 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3808 Bias::Left,
3809 );
3810 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3811 multi_buffer
3812 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3813 .into_iter()
3814 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3815 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3816 let buffer = buffer_handle.read(cx);
3817 let buffer_file = project::File::from_dyn(buffer.file())?;
3818 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3819 let worktree_entry = buffer_worktree
3820 .read(cx)
3821 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3822 if worktree_entry.is_ignored {
3823 return None;
3824 }
3825
3826 let language = buffer.language()?;
3827 if let Some(restrict_to_languages) = restrict_to_languages {
3828 if !restrict_to_languages.contains(language) {
3829 return None;
3830 }
3831 }
3832 Some((
3833 excerpt_id,
3834 (
3835 buffer_handle,
3836 buffer.version().clone(),
3837 excerpt_visible_range,
3838 ),
3839 ))
3840 })
3841 .collect()
3842 }
3843
3844 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3845 TextLayoutDetails {
3846 text_system: cx.text_system().clone(),
3847 editor_style: self.style.clone().unwrap(),
3848 rem_size: cx.rem_size(),
3849 scroll_anchor: self.scroll_manager.anchor(),
3850 visible_rows: self.visible_line_count(),
3851 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3852 }
3853 }
3854
3855 fn splice_inlays(
3856 &self,
3857 to_remove: Vec<InlayId>,
3858 to_insert: Vec<Inlay>,
3859 cx: &mut ViewContext<Self>,
3860 ) {
3861 self.display_map.update(cx, |display_map, cx| {
3862 display_map.splice_inlays(to_remove, to_insert, cx);
3863 });
3864 cx.notify();
3865 }
3866
3867 fn trigger_on_type_formatting(
3868 &self,
3869 input: String,
3870 cx: &mut ViewContext<Self>,
3871 ) -> Option<Task<Result<()>>> {
3872 if input.len() != 1 {
3873 return None;
3874 }
3875
3876 let project = self.project.as_ref()?;
3877 let position = self.selections.newest_anchor().head();
3878 let (buffer, buffer_position) = self
3879 .buffer
3880 .read(cx)
3881 .text_anchor_for_position(position, cx)?;
3882
3883 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3884 // hence we do LSP request & edit on host side only — add formats to host's history.
3885 let push_to_lsp_host_history = true;
3886 // If this is not the host, append its history with new edits.
3887 let push_to_client_history = project.read(cx).is_remote();
3888
3889 let on_type_formatting = project.update(cx, |project, cx| {
3890 project.on_type_format(
3891 buffer.clone(),
3892 buffer_position,
3893 input,
3894 push_to_lsp_host_history,
3895 cx,
3896 )
3897 });
3898 Some(cx.spawn(|editor, mut cx| async move {
3899 if let Some(transaction) = on_type_formatting.await? {
3900 if push_to_client_history {
3901 buffer
3902 .update(&mut cx, |buffer, _| {
3903 buffer.push_transaction(transaction, Instant::now());
3904 })
3905 .ok();
3906 }
3907 editor.update(&mut cx, |editor, cx| {
3908 editor.refresh_document_highlights(cx);
3909 })?;
3910 }
3911 Ok(())
3912 }))
3913 }
3914
3915 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3916 if self.pending_rename.is_some() {
3917 return;
3918 }
3919
3920 let Some(provider) = self.completion_provider.as_ref() else {
3921 return;
3922 };
3923
3924 let position = self.selections.newest_anchor().head();
3925 let (buffer, buffer_position) =
3926 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3927 output
3928 } else {
3929 return;
3930 };
3931
3932 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3933 let is_followup_invoke = {
3934 let context_menu_state = self.context_menu.read();
3935 matches!(
3936 context_menu_state.deref(),
3937 Some(ContextMenu::Completions(_))
3938 )
3939 };
3940 let trigger_kind = match (options.trigger, is_followup_invoke) {
3941 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
3942 (Some(_), _) => CompletionTriggerKind::TRIGGER_CHARACTER,
3943 _ => CompletionTriggerKind::INVOKED,
3944 };
3945 let completion_context = CompletionContext {
3946 trigger_character: options.trigger.and_then(|c| {
3947 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3948 Some(String::from(c))
3949 } else {
3950 None
3951 }
3952 }),
3953 trigger_kind,
3954 };
3955 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3956
3957 let id = post_inc(&mut self.next_completion_id);
3958 let task = cx.spawn(|this, mut cx| {
3959 async move {
3960 this.update(&mut cx, |this, _| {
3961 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3962 })?;
3963 let completions = completions.await.log_err();
3964 let menu = if let Some(completions) = completions {
3965 let mut menu = CompletionsMenu {
3966 id,
3967 initial_position: position,
3968 match_candidates: completions
3969 .iter()
3970 .enumerate()
3971 .map(|(id, completion)| {
3972 StringMatchCandidate::new(
3973 id,
3974 completion.label.text[completion.label.filter_range.clone()]
3975 .into(),
3976 )
3977 })
3978 .collect(),
3979 buffer: buffer.clone(),
3980 completions: Arc::new(RwLock::new(completions.into())),
3981 matches: Vec::new().into(),
3982 selected_item: 0,
3983 scroll_handle: UniformListScrollHandle::new(),
3984 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3985 DebouncedDelay::new(),
3986 )),
3987 };
3988 menu.filter(query.as_deref(), cx.background_executor().clone())
3989 .await;
3990
3991 if menu.matches.is_empty() {
3992 None
3993 } else {
3994 this.update(&mut cx, |editor, cx| {
3995 let completions = menu.completions.clone();
3996 let matches = menu.matches.clone();
3997
3998 let delay_ms = EditorSettings::get_global(cx)
3999 .completion_documentation_secondary_query_debounce;
4000 let delay = Duration::from_millis(delay_ms);
4001 editor
4002 .completion_documentation_pre_resolve_debounce
4003 .fire_new(delay, cx, |editor, cx| {
4004 CompletionsMenu::pre_resolve_completion_documentation(
4005 buffer,
4006 completions,
4007 matches,
4008 editor,
4009 cx,
4010 )
4011 });
4012 })
4013 .ok();
4014 Some(menu)
4015 }
4016 } else {
4017 None
4018 };
4019
4020 this.update(&mut cx, |this, cx| {
4021 let mut context_menu = this.context_menu.write();
4022 match context_menu.as_ref() {
4023 None => {}
4024
4025 Some(ContextMenu::Completions(prev_menu)) => {
4026 if prev_menu.id > id {
4027 return;
4028 }
4029 }
4030
4031 _ => return,
4032 }
4033
4034 if this.focus_handle.is_focused(cx) && menu.is_some() {
4035 let menu = menu.unwrap();
4036 *context_menu = Some(ContextMenu::Completions(menu));
4037 drop(context_menu);
4038 this.discard_inline_completion(false, cx);
4039 cx.notify();
4040 } else if this.completion_tasks.len() <= 1 {
4041 // If there are no more completion tasks and the last menu was
4042 // empty, we should hide it. If it was already hidden, we should
4043 // also show the copilot completion when available.
4044 drop(context_menu);
4045 if this.hide_context_menu(cx).is_none() {
4046 this.update_visible_inline_completion(cx);
4047 }
4048 }
4049 })?;
4050
4051 Ok::<_, anyhow::Error>(())
4052 }
4053 .log_err()
4054 });
4055
4056 self.completion_tasks.push((id, task));
4057 }
4058
4059 pub fn confirm_completion(
4060 &mut self,
4061 action: &ConfirmCompletion,
4062 cx: &mut ViewContext<Self>,
4063 ) -> Option<Task<Result<()>>> {
4064 use language::ToOffset as _;
4065
4066 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4067 menu
4068 } else {
4069 return None;
4070 };
4071
4072 let mat = completions_menu
4073 .matches
4074 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4075 let buffer_handle = completions_menu.buffer;
4076 let completions = completions_menu.completions.read();
4077 let completion = completions.get(mat.candidate_id)?;
4078 cx.stop_propagation();
4079
4080 let snippet;
4081 let text;
4082
4083 if completion.is_snippet() {
4084 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4085 text = snippet.as_ref().unwrap().text.clone();
4086 } else {
4087 snippet = None;
4088 text = completion.new_text.clone();
4089 };
4090 let selections = self.selections.all::<usize>(cx);
4091 let buffer = buffer_handle.read(cx);
4092 let old_range = completion.old_range.to_offset(buffer);
4093 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4094
4095 let newest_selection = self.selections.newest_anchor();
4096 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4097 return None;
4098 }
4099
4100 let lookbehind = newest_selection
4101 .start
4102 .text_anchor
4103 .to_offset(buffer)
4104 .saturating_sub(old_range.start);
4105 let lookahead = old_range
4106 .end
4107 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4108 let mut common_prefix_len = old_text
4109 .bytes()
4110 .zip(text.bytes())
4111 .take_while(|(a, b)| a == b)
4112 .count();
4113
4114 let snapshot = self.buffer.read(cx).snapshot(cx);
4115 let mut range_to_replace: Option<Range<isize>> = None;
4116 let mut ranges = Vec::new();
4117 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4118 for selection in &selections {
4119 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4120 let start = selection.start.saturating_sub(lookbehind);
4121 let end = selection.end + lookahead;
4122 if selection.id == newest_selection.id {
4123 range_to_replace = Some(
4124 ((start + common_prefix_len) as isize - selection.start as isize)
4125 ..(end as isize - selection.start as isize),
4126 );
4127 }
4128 ranges.push(start + common_prefix_len..end);
4129 } else {
4130 common_prefix_len = 0;
4131 ranges.clear();
4132 ranges.extend(selections.iter().map(|s| {
4133 if s.id == newest_selection.id {
4134 range_to_replace = Some(
4135 old_range.start.to_offset_utf16(&snapshot).0 as isize
4136 - selection.start as isize
4137 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4138 - selection.start as isize,
4139 );
4140 old_range.clone()
4141 } else {
4142 s.start..s.end
4143 }
4144 }));
4145 break;
4146 }
4147 if !self.linked_edit_ranges.is_empty() {
4148 let start_anchor = snapshot.anchor_before(selection.head());
4149 let end_anchor = snapshot.anchor_after(selection.tail());
4150 if let Some(ranges) = self
4151 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4152 {
4153 for (buffer, edits) in ranges {
4154 linked_edits.entry(buffer.clone()).or_default().extend(
4155 edits
4156 .into_iter()
4157 .map(|range| (range, text[common_prefix_len..].to_owned())),
4158 );
4159 }
4160 }
4161 }
4162 }
4163 let text = &text[common_prefix_len..];
4164
4165 cx.emit(EditorEvent::InputHandled {
4166 utf16_range_to_replace: range_to_replace,
4167 text: text.into(),
4168 });
4169
4170 self.transact(cx, |this, cx| {
4171 if let Some(mut snippet) = snippet {
4172 snippet.text = text.to_string();
4173 for tabstop in snippet.tabstops.iter_mut().flatten() {
4174 tabstop.start -= common_prefix_len as isize;
4175 tabstop.end -= common_prefix_len as isize;
4176 }
4177
4178 this.insert_snippet(&ranges, snippet, cx).log_err();
4179 } else {
4180 this.buffer.update(cx, |buffer, cx| {
4181 buffer.edit(
4182 ranges.iter().map(|range| (range.clone(), text)),
4183 this.autoindent_mode.clone(),
4184 cx,
4185 );
4186 });
4187 }
4188 for (buffer, edits) in linked_edits {
4189 buffer.update(cx, |buffer, cx| {
4190 let snapshot = buffer.snapshot();
4191 let edits = edits
4192 .into_iter()
4193 .map(|(range, text)| {
4194 use text::ToPoint as TP;
4195 let end_point = TP::to_point(&range.end, &snapshot);
4196 let start_point = TP::to_point(&range.start, &snapshot);
4197 (start_point..end_point, text)
4198 })
4199 .sorted_by_key(|(range, _)| range.start)
4200 .collect::<Vec<_>>();
4201 buffer.edit(edits, None, cx);
4202 })
4203 }
4204
4205 this.refresh_inline_completion(true, cx);
4206 });
4207
4208 if let Some(confirm) = completion.confirm.as_ref() {
4209 (confirm)(cx);
4210 }
4211
4212 if completion.show_new_completions_on_confirm {
4213 self.show_completions(&ShowCompletions { trigger: None }, cx);
4214 }
4215
4216 let provider = self.completion_provider.as_ref()?;
4217 let apply_edits = provider.apply_additional_edits_for_completion(
4218 buffer_handle,
4219 completion.clone(),
4220 true,
4221 cx,
4222 );
4223 Some(cx.foreground_executor().spawn(async move {
4224 apply_edits.await?;
4225 Ok(())
4226 }))
4227 }
4228
4229 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4230 let mut context_menu = self.context_menu.write();
4231 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4232 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4233 // Toggle if we're selecting the same one
4234 *context_menu = None;
4235 cx.notify();
4236 return;
4237 } else {
4238 // Otherwise, clear it and start a new one
4239 *context_menu = None;
4240 cx.notify();
4241 }
4242 }
4243 drop(context_menu);
4244 let snapshot = self.snapshot(cx);
4245 let deployed_from_indicator = action.deployed_from_indicator;
4246 let mut task = self.code_actions_task.take();
4247 let action = action.clone();
4248 cx.spawn(|editor, mut cx| async move {
4249 while let Some(prev_task) = task {
4250 prev_task.await;
4251 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4252 }
4253
4254 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4255 if editor.focus_handle.is_focused(cx) {
4256 let multibuffer_point = action
4257 .deployed_from_indicator
4258 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4259 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4260 let (buffer, buffer_row) = snapshot
4261 .buffer_snapshot
4262 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4263 .and_then(|(buffer_snapshot, range)| {
4264 editor
4265 .buffer
4266 .read(cx)
4267 .buffer(buffer_snapshot.remote_id())
4268 .map(|buffer| (buffer, range.start.row))
4269 })?;
4270 let (_, code_actions) = editor
4271 .available_code_actions
4272 .clone()
4273 .and_then(|(location, code_actions)| {
4274 let snapshot = location.buffer.read(cx).snapshot();
4275 let point_range = location.range.to_point(&snapshot);
4276 let point_range = point_range.start.row..=point_range.end.row;
4277 if point_range.contains(&buffer_row) {
4278 Some((location, code_actions))
4279 } else {
4280 None
4281 }
4282 })
4283 .unzip();
4284 let buffer_id = buffer.read(cx).remote_id();
4285 let tasks = editor
4286 .tasks
4287 .get(&(buffer_id, buffer_row))
4288 .map(|t| Arc::new(t.to_owned()));
4289 if tasks.is_none() && code_actions.is_none() {
4290 return None;
4291 }
4292
4293 editor.completion_tasks.clear();
4294 editor.discard_inline_completion(false, cx);
4295 let task_context =
4296 tasks
4297 .as_ref()
4298 .zip(editor.project.clone())
4299 .map(|(tasks, project)| {
4300 let position = Point::new(buffer_row, tasks.column);
4301 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4302 let location = Location {
4303 buffer: buffer.clone(),
4304 range: range_start..range_start,
4305 };
4306 // Fill in the environmental variables from the tree-sitter captures
4307 let mut captured_task_variables = TaskVariables::default();
4308 for (capture_name, value) in tasks.extra_variables.clone() {
4309 captured_task_variables.insert(
4310 task::VariableName::Custom(capture_name.into()),
4311 value.clone(),
4312 );
4313 }
4314 project.update(cx, |project, cx| {
4315 project.task_context_for_location(
4316 captured_task_variables,
4317 location,
4318 cx,
4319 )
4320 })
4321 });
4322
4323 Some(cx.spawn(|editor, mut cx| async move {
4324 let task_context = match task_context {
4325 Some(task_context) => task_context.await,
4326 None => None,
4327 };
4328 let resolved_tasks =
4329 tasks.zip(task_context).map(|(tasks, task_context)| {
4330 Arc::new(ResolvedTasks {
4331 templates: tasks
4332 .templates
4333 .iter()
4334 .filter_map(|(kind, template)| {
4335 template
4336 .resolve_task(&kind.to_id_base(), &task_context)
4337 .map(|task| (kind.clone(), task))
4338 })
4339 .collect(),
4340 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4341 multibuffer_point.row,
4342 tasks.column,
4343 )),
4344 })
4345 });
4346 let spawn_straight_away = resolved_tasks
4347 .as_ref()
4348 .map_or(false, |tasks| tasks.templates.len() == 1)
4349 && code_actions
4350 .as_ref()
4351 .map_or(true, |actions| actions.is_empty());
4352 if let Some(task) = editor
4353 .update(&mut cx, |editor, cx| {
4354 *editor.context_menu.write() =
4355 Some(ContextMenu::CodeActions(CodeActionsMenu {
4356 buffer,
4357 actions: CodeActionContents {
4358 tasks: resolved_tasks,
4359 actions: code_actions,
4360 },
4361 selected_item: Default::default(),
4362 scroll_handle: UniformListScrollHandle::default(),
4363 deployed_from_indicator,
4364 }));
4365 if spawn_straight_away {
4366 if let Some(task) = editor.confirm_code_action(
4367 &ConfirmCodeAction { item_ix: Some(0) },
4368 cx,
4369 ) {
4370 cx.notify();
4371 return task;
4372 }
4373 }
4374 cx.notify();
4375 Task::ready(Ok(()))
4376 })
4377 .ok()
4378 {
4379 task.await
4380 } else {
4381 Ok(())
4382 }
4383 }))
4384 } else {
4385 Some(Task::ready(Ok(())))
4386 }
4387 })?;
4388 if let Some(task) = spawned_test_task {
4389 task.await?;
4390 }
4391
4392 Ok::<_, anyhow::Error>(())
4393 })
4394 .detach_and_log_err(cx);
4395 }
4396
4397 pub fn confirm_code_action(
4398 &mut self,
4399 action: &ConfirmCodeAction,
4400 cx: &mut ViewContext<Self>,
4401 ) -> Option<Task<Result<()>>> {
4402 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4403 menu
4404 } else {
4405 return None;
4406 };
4407 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4408 let action = actions_menu.actions.get(action_ix)?;
4409 let title = action.label();
4410 let buffer = actions_menu.buffer;
4411 let workspace = self.workspace()?;
4412
4413 match action {
4414 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4415 workspace.update(cx, |workspace, cx| {
4416 workspace::tasks::schedule_resolved_task(
4417 workspace,
4418 task_source_kind,
4419 resolved_task,
4420 false,
4421 cx,
4422 );
4423
4424 Some(Task::ready(Ok(())))
4425 })
4426 }
4427 CodeActionsItem::CodeAction(action) => {
4428 let apply_code_actions = workspace
4429 .read(cx)
4430 .project()
4431 .clone()
4432 .update(cx, |project, cx| {
4433 project.apply_code_action(buffer, action, true, cx)
4434 });
4435 let workspace = workspace.downgrade();
4436 Some(cx.spawn(|editor, cx| async move {
4437 let project_transaction = apply_code_actions.await?;
4438 Self::open_project_transaction(
4439 &editor,
4440 workspace,
4441 project_transaction,
4442 title,
4443 cx,
4444 )
4445 .await
4446 }))
4447 }
4448 }
4449 }
4450
4451 pub async fn open_project_transaction(
4452 this: &WeakView<Editor>,
4453 workspace: WeakView<Workspace>,
4454 transaction: ProjectTransaction,
4455 title: String,
4456 mut cx: AsyncWindowContext,
4457 ) -> Result<()> {
4458 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4459
4460 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4461 cx.update(|cx| {
4462 entries.sort_unstable_by_key(|(buffer, _)| {
4463 buffer.read(cx).file().map(|f| f.path().clone())
4464 });
4465 })?;
4466
4467 // If the project transaction's edits are all contained within this editor, then
4468 // avoid opening a new editor to display them.
4469
4470 if let Some((buffer, transaction)) = entries.first() {
4471 if entries.len() == 1 {
4472 let excerpt = this.update(&mut cx, |editor, cx| {
4473 editor
4474 .buffer()
4475 .read(cx)
4476 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4477 })?;
4478 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4479 if excerpted_buffer == *buffer {
4480 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4481 let excerpt_range = excerpt_range.to_offset(buffer);
4482 buffer
4483 .edited_ranges_for_transaction::<usize>(transaction)
4484 .all(|range| {
4485 excerpt_range.start <= range.start
4486 && excerpt_range.end >= range.end
4487 })
4488 })?;
4489
4490 if all_edits_within_excerpt {
4491 return Ok(());
4492 }
4493 }
4494 }
4495 }
4496 } else {
4497 return Ok(());
4498 }
4499
4500 let mut ranges_to_highlight = Vec::new();
4501 let excerpt_buffer = cx.new_model(|cx| {
4502 let mut multibuffer =
4503 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4504 for (buffer_handle, transaction) in &entries {
4505 let buffer = buffer_handle.read(cx);
4506 ranges_to_highlight.extend(
4507 multibuffer.push_excerpts_with_context_lines(
4508 buffer_handle.clone(),
4509 buffer
4510 .edited_ranges_for_transaction::<usize>(transaction)
4511 .collect(),
4512 DEFAULT_MULTIBUFFER_CONTEXT,
4513 cx,
4514 ),
4515 );
4516 }
4517 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4518 multibuffer
4519 })?;
4520
4521 workspace.update(&mut cx, |workspace, cx| {
4522 let project = workspace.project().clone();
4523 let editor =
4524 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4525 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4526 editor.update(cx, |editor, cx| {
4527 editor.highlight_background::<Self>(
4528 &ranges_to_highlight,
4529 |theme| theme.editor_highlighted_line_background,
4530 cx,
4531 );
4532 });
4533 })?;
4534
4535 Ok(())
4536 }
4537
4538 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4539 let project = self.project.clone()?;
4540 let buffer = self.buffer.read(cx);
4541 let newest_selection = self.selections.newest_anchor().clone();
4542 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4543 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4544 if start_buffer != end_buffer {
4545 return None;
4546 }
4547
4548 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4549 cx.background_executor()
4550 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4551 .await;
4552
4553 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4554 project.code_actions(&start_buffer, start..end, cx)
4555 }) {
4556 code_actions.await
4557 } else {
4558 Vec::new()
4559 };
4560
4561 this.update(&mut cx, |this, cx| {
4562 this.available_code_actions = if actions.is_empty() {
4563 None
4564 } else {
4565 Some((
4566 Location {
4567 buffer: start_buffer,
4568 range: start..end,
4569 },
4570 actions.into(),
4571 ))
4572 };
4573 cx.notify();
4574 })
4575 .log_err();
4576 }));
4577 None
4578 }
4579
4580 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4581 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4582 self.show_git_blame_inline = false;
4583
4584 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4585 cx.background_executor().timer(delay).await;
4586
4587 this.update(&mut cx, |this, cx| {
4588 this.show_git_blame_inline = true;
4589 cx.notify();
4590 })
4591 .log_err();
4592 }));
4593 }
4594 }
4595
4596 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4597 if self.pending_rename.is_some() {
4598 return None;
4599 }
4600
4601 let project = self.project.clone()?;
4602 let buffer = self.buffer.read(cx);
4603 let newest_selection = self.selections.newest_anchor().clone();
4604 let cursor_position = newest_selection.head();
4605 let (cursor_buffer, cursor_buffer_position) =
4606 buffer.text_anchor_for_position(cursor_position, cx)?;
4607 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4608 if cursor_buffer != tail_buffer {
4609 return None;
4610 }
4611
4612 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4613 cx.background_executor()
4614 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4615 .await;
4616
4617 let highlights = if let Some(highlights) = project
4618 .update(&mut cx, |project, cx| {
4619 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4620 })
4621 .log_err()
4622 {
4623 highlights.await.log_err()
4624 } else {
4625 None
4626 };
4627
4628 if let Some(highlights) = highlights {
4629 this.update(&mut cx, |this, cx| {
4630 if this.pending_rename.is_some() {
4631 return;
4632 }
4633
4634 let buffer_id = cursor_position.buffer_id;
4635 let buffer = this.buffer.read(cx);
4636 if !buffer
4637 .text_anchor_for_position(cursor_position, cx)
4638 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4639 {
4640 return;
4641 }
4642
4643 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4644 let mut write_ranges = Vec::new();
4645 let mut read_ranges = Vec::new();
4646 for highlight in highlights {
4647 for (excerpt_id, excerpt_range) in
4648 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4649 {
4650 let start = highlight
4651 .range
4652 .start
4653 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4654 let end = highlight
4655 .range
4656 .end
4657 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4658 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4659 continue;
4660 }
4661
4662 let range = Anchor {
4663 buffer_id,
4664 excerpt_id: excerpt_id,
4665 text_anchor: start,
4666 }..Anchor {
4667 buffer_id,
4668 excerpt_id,
4669 text_anchor: end,
4670 };
4671 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4672 write_ranges.push(range);
4673 } else {
4674 read_ranges.push(range);
4675 }
4676 }
4677 }
4678
4679 this.highlight_background::<DocumentHighlightRead>(
4680 &read_ranges,
4681 |theme| theme.editor_document_highlight_read_background,
4682 cx,
4683 );
4684 this.highlight_background::<DocumentHighlightWrite>(
4685 &write_ranges,
4686 |theme| theme.editor_document_highlight_write_background,
4687 cx,
4688 );
4689 cx.notify();
4690 })
4691 .log_err();
4692 }
4693 }));
4694 None
4695 }
4696
4697 fn refresh_inline_completion(
4698 &mut self,
4699 debounce: bool,
4700 cx: &mut ViewContext<Self>,
4701 ) -> Option<()> {
4702 let provider = self.inline_completion_provider()?;
4703 let cursor = self.selections.newest_anchor().head();
4704 let (buffer, cursor_buffer_position) =
4705 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4706 if !self.show_inline_completions
4707 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4708 {
4709 self.discard_inline_completion(false, cx);
4710 return None;
4711 }
4712
4713 self.update_visible_inline_completion(cx);
4714 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4715 Some(())
4716 }
4717
4718 fn cycle_inline_completion(
4719 &mut self,
4720 direction: Direction,
4721 cx: &mut ViewContext<Self>,
4722 ) -> Option<()> {
4723 let provider = self.inline_completion_provider()?;
4724 let cursor = self.selections.newest_anchor().head();
4725 let (buffer, cursor_buffer_position) =
4726 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4727 if !self.show_inline_completions
4728 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4729 {
4730 return None;
4731 }
4732
4733 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4734 self.update_visible_inline_completion(cx);
4735
4736 Some(())
4737 }
4738
4739 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4740 if !self.has_active_inline_completion(cx) {
4741 self.refresh_inline_completion(false, cx);
4742 return;
4743 }
4744
4745 self.update_visible_inline_completion(cx);
4746 }
4747
4748 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4749 self.show_cursor_names(cx);
4750 }
4751
4752 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4753 self.show_cursor_names = true;
4754 cx.notify();
4755 cx.spawn(|this, mut cx| async move {
4756 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4757 this.update(&mut cx, |this, cx| {
4758 this.show_cursor_names = false;
4759 cx.notify()
4760 })
4761 .ok()
4762 })
4763 .detach();
4764 }
4765
4766 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4767 if self.has_active_inline_completion(cx) {
4768 self.cycle_inline_completion(Direction::Next, cx);
4769 } else {
4770 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4771 if is_copilot_disabled {
4772 cx.propagate();
4773 }
4774 }
4775 }
4776
4777 pub fn previous_inline_completion(
4778 &mut self,
4779 _: &PreviousInlineCompletion,
4780 cx: &mut ViewContext<Self>,
4781 ) {
4782 if self.has_active_inline_completion(cx) {
4783 self.cycle_inline_completion(Direction::Prev, cx);
4784 } else {
4785 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4786 if is_copilot_disabled {
4787 cx.propagate();
4788 }
4789 }
4790 }
4791
4792 pub fn accept_inline_completion(
4793 &mut self,
4794 _: &AcceptInlineCompletion,
4795 cx: &mut ViewContext<Self>,
4796 ) {
4797 let Some(completion) = self.take_active_inline_completion(cx) else {
4798 return;
4799 };
4800 if let Some(provider) = self.inline_completion_provider() {
4801 provider.accept(cx);
4802 }
4803
4804 cx.emit(EditorEvent::InputHandled {
4805 utf16_range_to_replace: None,
4806 text: completion.text.to_string().into(),
4807 });
4808 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4809 self.refresh_inline_completion(true, cx);
4810 cx.notify();
4811 }
4812
4813 pub fn accept_partial_inline_completion(
4814 &mut self,
4815 _: &AcceptPartialInlineCompletion,
4816 cx: &mut ViewContext<Self>,
4817 ) {
4818 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4819 if let Some(completion) = self.take_active_inline_completion(cx) {
4820 let mut partial_completion = completion
4821 .text
4822 .chars()
4823 .by_ref()
4824 .take_while(|c| c.is_alphabetic())
4825 .collect::<String>();
4826 if partial_completion.is_empty() {
4827 partial_completion = completion
4828 .text
4829 .chars()
4830 .by_ref()
4831 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4832 .collect::<String>();
4833 }
4834
4835 cx.emit(EditorEvent::InputHandled {
4836 utf16_range_to_replace: None,
4837 text: partial_completion.clone().into(),
4838 });
4839 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4840 self.refresh_inline_completion(true, cx);
4841 cx.notify();
4842 }
4843 }
4844 }
4845
4846 fn discard_inline_completion(
4847 &mut self,
4848 should_report_inline_completion_event: bool,
4849 cx: &mut ViewContext<Self>,
4850 ) -> bool {
4851 if let Some(provider) = self.inline_completion_provider() {
4852 provider.discard(should_report_inline_completion_event, cx);
4853 }
4854
4855 self.take_active_inline_completion(cx).is_some()
4856 }
4857
4858 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4859 if let Some(completion) = self.active_inline_completion.as_ref() {
4860 let buffer = self.buffer.read(cx).read(cx);
4861 completion.position.is_valid(&buffer)
4862 } else {
4863 false
4864 }
4865 }
4866
4867 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4868 let completion = self.active_inline_completion.take()?;
4869 self.display_map.update(cx, |map, cx| {
4870 map.splice_inlays(vec![completion.id], Default::default(), cx);
4871 });
4872 let buffer = self.buffer.read(cx).read(cx);
4873
4874 if completion.position.is_valid(&buffer) {
4875 Some(completion)
4876 } else {
4877 None
4878 }
4879 }
4880
4881 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4882 let selection = self.selections.newest_anchor();
4883 let cursor = selection.head();
4884
4885 if self.context_menu.read().is_none()
4886 && self.completion_tasks.is_empty()
4887 && selection.start == selection.end
4888 {
4889 if let Some(provider) = self.inline_completion_provider() {
4890 if let Some((buffer, cursor_buffer_position)) =
4891 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4892 {
4893 if let Some(text) =
4894 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4895 {
4896 let text = Rope::from(text);
4897 let mut to_remove = Vec::new();
4898 if let Some(completion) = self.active_inline_completion.take() {
4899 to_remove.push(completion.id);
4900 }
4901
4902 let completion_inlay =
4903 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4904 self.active_inline_completion = Some(completion_inlay.clone());
4905 self.display_map.update(cx, move |map, cx| {
4906 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4907 });
4908 cx.notify();
4909 return;
4910 }
4911 }
4912 }
4913 }
4914
4915 self.discard_inline_completion(false, cx);
4916 }
4917
4918 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4919 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4920 }
4921
4922 fn render_code_actions_indicator(
4923 &self,
4924 _style: &EditorStyle,
4925 row: DisplayRow,
4926 is_active: bool,
4927 cx: &mut ViewContext<Self>,
4928 ) -> Option<IconButton> {
4929 if self.available_code_actions.is_some() {
4930 Some(
4931 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4932 .shape(ui::IconButtonShape::Square)
4933 .icon_size(IconSize::XSmall)
4934 .icon_color(Color::Muted)
4935 .selected(is_active)
4936 .on_click(cx.listener(move |editor, _e, cx| {
4937 editor.focus(cx);
4938 editor.toggle_code_actions(
4939 &ToggleCodeActions {
4940 deployed_from_indicator: Some(row),
4941 },
4942 cx,
4943 );
4944 })),
4945 )
4946 } else {
4947 None
4948 }
4949 }
4950
4951 fn clear_tasks(&mut self) {
4952 self.tasks.clear()
4953 }
4954
4955 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4956 if let Some(_) = self.tasks.insert(key, value) {
4957 // This case should hopefully be rare, but just in case...
4958 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4959 }
4960 }
4961
4962 fn render_run_indicator(
4963 &self,
4964 _style: &EditorStyle,
4965 is_active: bool,
4966 row: DisplayRow,
4967 cx: &mut ViewContext<Self>,
4968 ) -> IconButton {
4969 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4970 .shape(ui::IconButtonShape::Square)
4971 .icon_size(IconSize::XSmall)
4972 .icon_color(Color::Muted)
4973 .selected(is_active)
4974 .on_click(cx.listener(move |editor, _e, cx| {
4975 editor.focus(cx);
4976 editor.toggle_code_actions(
4977 &ToggleCodeActions {
4978 deployed_from_indicator: Some(row),
4979 },
4980 cx,
4981 );
4982 }))
4983 }
4984
4985 pub fn context_menu_visible(&self) -> bool {
4986 self.context_menu
4987 .read()
4988 .as_ref()
4989 .map_or(false, |menu| menu.visible())
4990 }
4991
4992 fn render_context_menu(
4993 &self,
4994 cursor_position: DisplayPoint,
4995 style: &EditorStyle,
4996 max_height: Pixels,
4997 cx: &mut ViewContext<Editor>,
4998 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4999 self.context_menu.read().as_ref().map(|menu| {
5000 menu.render(
5001 cursor_position,
5002 style,
5003 max_height,
5004 self.workspace.as_ref().map(|(w, _)| w.clone()),
5005 cx,
5006 )
5007 })
5008 }
5009
5010 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5011 cx.notify();
5012 self.completion_tasks.clear();
5013 let context_menu = self.context_menu.write().take();
5014 if context_menu.is_some() {
5015 self.update_visible_inline_completion(cx);
5016 }
5017 context_menu
5018 }
5019
5020 pub fn insert_snippet(
5021 &mut self,
5022 insertion_ranges: &[Range<usize>],
5023 snippet: Snippet,
5024 cx: &mut ViewContext<Self>,
5025 ) -> Result<()> {
5026 struct Tabstop<T> {
5027 is_end_tabstop: bool,
5028 ranges: Vec<Range<T>>,
5029 }
5030
5031 let tabstops = self.buffer.update(cx, |buffer, cx| {
5032 let snippet_text: Arc<str> = snippet.text.clone().into();
5033 buffer.edit(
5034 insertion_ranges
5035 .iter()
5036 .cloned()
5037 .map(|range| (range, snippet_text.clone())),
5038 Some(AutoindentMode::EachLine),
5039 cx,
5040 );
5041
5042 let snapshot = &*buffer.read(cx);
5043 let snippet = &snippet;
5044 snippet
5045 .tabstops
5046 .iter()
5047 .map(|tabstop| {
5048 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5049 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5050 });
5051 let mut tabstop_ranges = tabstop
5052 .iter()
5053 .flat_map(|tabstop_range| {
5054 let mut delta = 0_isize;
5055 insertion_ranges.iter().map(move |insertion_range| {
5056 let insertion_start = insertion_range.start as isize + delta;
5057 delta +=
5058 snippet.text.len() as isize - insertion_range.len() as isize;
5059
5060 let start = ((insertion_start + tabstop_range.start) as usize)
5061 .min(snapshot.len());
5062 let end = ((insertion_start + tabstop_range.end) as usize)
5063 .min(snapshot.len());
5064 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5065 })
5066 })
5067 .collect::<Vec<_>>();
5068 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5069
5070 Tabstop {
5071 is_end_tabstop,
5072 ranges: tabstop_ranges,
5073 }
5074 })
5075 .collect::<Vec<_>>()
5076 });
5077
5078 if let Some(tabstop) = tabstops.first() {
5079 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5080 s.select_ranges(tabstop.ranges.iter().cloned());
5081 });
5082
5083 // If we're already at the last tabstop and it's at the end of the snippet,
5084 // we're done, we don't need to keep the state around.
5085 if !tabstop.is_end_tabstop {
5086 let ranges = tabstops
5087 .into_iter()
5088 .map(|tabstop| tabstop.ranges)
5089 .collect::<Vec<_>>();
5090 self.snippet_stack.push(SnippetState {
5091 active_index: 0,
5092 ranges,
5093 });
5094 }
5095
5096 // Check whether the just-entered snippet ends with an auto-closable bracket.
5097 if self.autoclose_regions.is_empty() {
5098 let snapshot = self.buffer.read(cx).snapshot(cx);
5099 for selection in &mut self.selections.all::<Point>(cx) {
5100 let selection_head = selection.head();
5101 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5102 continue;
5103 };
5104
5105 let mut bracket_pair = None;
5106 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5107 let prev_chars = snapshot
5108 .reversed_chars_at(selection_head)
5109 .collect::<String>();
5110 for (pair, enabled) in scope.brackets() {
5111 if enabled
5112 && pair.close
5113 && prev_chars.starts_with(pair.start.as_str())
5114 && next_chars.starts_with(pair.end.as_str())
5115 {
5116 bracket_pair = Some(pair.clone());
5117 break;
5118 }
5119 }
5120 if let Some(pair) = bracket_pair {
5121 let start = snapshot.anchor_after(selection_head);
5122 let end = snapshot.anchor_after(selection_head);
5123 self.autoclose_regions.push(AutocloseRegion {
5124 selection_id: selection.id,
5125 range: start..end,
5126 pair,
5127 });
5128 }
5129 }
5130 }
5131 }
5132 Ok(())
5133 }
5134
5135 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5136 self.move_to_snippet_tabstop(Bias::Right, cx)
5137 }
5138
5139 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5140 self.move_to_snippet_tabstop(Bias::Left, cx)
5141 }
5142
5143 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5144 if let Some(mut snippet) = self.snippet_stack.pop() {
5145 match bias {
5146 Bias::Left => {
5147 if snippet.active_index > 0 {
5148 snippet.active_index -= 1;
5149 } else {
5150 self.snippet_stack.push(snippet);
5151 return false;
5152 }
5153 }
5154 Bias::Right => {
5155 if snippet.active_index + 1 < snippet.ranges.len() {
5156 snippet.active_index += 1;
5157 } else {
5158 self.snippet_stack.push(snippet);
5159 return false;
5160 }
5161 }
5162 }
5163 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5164 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5165 s.select_anchor_ranges(current_ranges.iter().cloned())
5166 });
5167 // If snippet state is not at the last tabstop, push it back on the stack
5168 if snippet.active_index + 1 < snippet.ranges.len() {
5169 self.snippet_stack.push(snippet);
5170 }
5171 return true;
5172 }
5173 }
5174
5175 false
5176 }
5177
5178 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5179 self.transact(cx, |this, cx| {
5180 this.select_all(&SelectAll, cx);
5181 this.insert("", cx);
5182 });
5183 }
5184
5185 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5186 self.transact(cx, |this, cx| {
5187 this.select_autoclose_pair(cx);
5188 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5189 if !this.linked_edit_ranges.is_empty() {
5190 let selections = this.selections.all::<MultiBufferPoint>(cx);
5191 let snapshot = this.buffer.read(cx).snapshot(cx);
5192
5193 for selection in selections.iter() {
5194 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5195 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5196 if selection_start.buffer_id != selection_end.buffer_id {
5197 continue;
5198 }
5199 if let Some(ranges) =
5200 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5201 {
5202 for (buffer, entries) in ranges {
5203 linked_ranges.entry(buffer).or_default().extend(entries);
5204 }
5205 }
5206 }
5207 }
5208
5209 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5210 if !this.selections.line_mode {
5211 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5212 for selection in &mut selections {
5213 if selection.is_empty() {
5214 let old_head = selection.head();
5215 let mut new_head =
5216 movement::left(&display_map, old_head.to_display_point(&display_map))
5217 .to_point(&display_map);
5218 if let Some((buffer, line_buffer_range)) = display_map
5219 .buffer_snapshot
5220 .buffer_line_for_row(MultiBufferRow(old_head.row))
5221 {
5222 let indent_size =
5223 buffer.indent_size_for_line(line_buffer_range.start.row);
5224 let indent_len = match indent_size.kind {
5225 IndentKind::Space => {
5226 buffer.settings_at(line_buffer_range.start, cx).tab_size
5227 }
5228 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5229 };
5230 if old_head.column <= indent_size.len && old_head.column > 0 {
5231 let indent_len = indent_len.get();
5232 new_head = cmp::min(
5233 new_head,
5234 MultiBufferPoint::new(
5235 old_head.row,
5236 ((old_head.column - 1) / indent_len) * indent_len,
5237 ),
5238 );
5239 }
5240 }
5241
5242 selection.set_head(new_head, SelectionGoal::None);
5243 }
5244 }
5245 }
5246
5247 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5248 this.insert("", cx);
5249 let empty_str: Arc<str> = Arc::from("");
5250 for (buffer, edits) in linked_ranges {
5251 let snapshot = buffer.read(cx).snapshot();
5252 use text::ToPoint as TP;
5253
5254 let edits = edits
5255 .into_iter()
5256 .map(|range| {
5257 let end_point = TP::to_point(&range.end, &snapshot);
5258 let mut start_point = TP::to_point(&range.start, &snapshot);
5259
5260 if end_point == start_point {
5261 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5262 .saturating_sub(1);
5263 start_point = TP::to_point(&offset, &snapshot);
5264 };
5265
5266 (start_point..end_point, empty_str.clone())
5267 })
5268 .sorted_by_key(|(range, _)| range.start)
5269 .collect::<Vec<_>>();
5270 buffer.update(cx, |this, cx| {
5271 this.edit(edits, None, cx);
5272 })
5273 }
5274 this.refresh_inline_completion(true, cx);
5275 linked_editing_ranges::refresh_linked_ranges(this, cx);
5276 });
5277 }
5278
5279 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5280 self.transact(cx, |this, cx| {
5281 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5282 let line_mode = s.line_mode;
5283 s.move_with(|map, selection| {
5284 if selection.is_empty() && !line_mode {
5285 let cursor = movement::right(map, selection.head());
5286 selection.end = cursor;
5287 selection.reversed = true;
5288 selection.goal = SelectionGoal::None;
5289 }
5290 })
5291 });
5292 this.insert("", cx);
5293 this.refresh_inline_completion(true, cx);
5294 });
5295 }
5296
5297 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5298 if self.move_to_prev_snippet_tabstop(cx) {
5299 return;
5300 }
5301
5302 self.outdent(&Outdent, cx);
5303 }
5304
5305 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5306 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5307 return;
5308 }
5309
5310 let mut selections = self.selections.all_adjusted(cx);
5311 let buffer = self.buffer.read(cx);
5312 let snapshot = buffer.snapshot(cx);
5313 let rows_iter = selections.iter().map(|s| s.head().row);
5314 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5315
5316 let mut edits = Vec::new();
5317 let mut prev_edited_row = 0;
5318 let mut row_delta = 0;
5319 for selection in &mut selections {
5320 if selection.start.row != prev_edited_row {
5321 row_delta = 0;
5322 }
5323 prev_edited_row = selection.end.row;
5324
5325 // If the selection is non-empty, then increase the indentation of the selected lines.
5326 if !selection.is_empty() {
5327 row_delta =
5328 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5329 continue;
5330 }
5331
5332 // If the selection is empty and the cursor is in the leading whitespace before the
5333 // suggested indentation, then auto-indent the line.
5334 let cursor = selection.head();
5335 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5336 if let Some(suggested_indent) =
5337 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5338 {
5339 if cursor.column < suggested_indent.len
5340 && cursor.column <= current_indent.len
5341 && current_indent.len <= suggested_indent.len
5342 {
5343 selection.start = Point::new(cursor.row, suggested_indent.len);
5344 selection.end = selection.start;
5345 if row_delta == 0 {
5346 edits.extend(Buffer::edit_for_indent_size_adjustment(
5347 cursor.row,
5348 current_indent,
5349 suggested_indent,
5350 ));
5351 row_delta = suggested_indent.len - current_indent.len;
5352 }
5353 continue;
5354 }
5355 }
5356
5357 // Otherwise, insert a hard or soft tab.
5358 let settings = buffer.settings_at(cursor, cx);
5359 let tab_size = if settings.hard_tabs {
5360 IndentSize::tab()
5361 } else {
5362 let tab_size = settings.tab_size.get();
5363 let char_column = snapshot
5364 .text_for_range(Point::new(cursor.row, 0)..cursor)
5365 .flat_map(str::chars)
5366 .count()
5367 + row_delta as usize;
5368 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5369 IndentSize::spaces(chars_to_next_tab_stop)
5370 };
5371 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5372 selection.end = selection.start;
5373 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5374 row_delta += tab_size.len;
5375 }
5376
5377 self.transact(cx, |this, cx| {
5378 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5379 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5380 this.refresh_inline_completion(true, cx);
5381 });
5382 }
5383
5384 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5385 if self.read_only(cx) {
5386 return;
5387 }
5388 let mut selections = self.selections.all::<Point>(cx);
5389 let mut prev_edited_row = 0;
5390 let mut row_delta = 0;
5391 let mut edits = Vec::new();
5392 let buffer = self.buffer.read(cx);
5393 let snapshot = buffer.snapshot(cx);
5394 for selection in &mut selections {
5395 if selection.start.row != prev_edited_row {
5396 row_delta = 0;
5397 }
5398 prev_edited_row = selection.end.row;
5399
5400 row_delta =
5401 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5402 }
5403
5404 self.transact(cx, |this, cx| {
5405 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5406 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5407 });
5408 }
5409
5410 fn indent_selection(
5411 buffer: &MultiBuffer,
5412 snapshot: &MultiBufferSnapshot,
5413 selection: &mut Selection<Point>,
5414 edits: &mut Vec<(Range<Point>, String)>,
5415 delta_for_start_row: u32,
5416 cx: &AppContext,
5417 ) -> u32 {
5418 let settings = buffer.settings_at(selection.start, cx);
5419 let tab_size = settings.tab_size.get();
5420 let indent_kind = if settings.hard_tabs {
5421 IndentKind::Tab
5422 } else {
5423 IndentKind::Space
5424 };
5425 let mut start_row = selection.start.row;
5426 let mut end_row = selection.end.row + 1;
5427
5428 // If a selection ends at the beginning of a line, don't indent
5429 // that last line.
5430 if selection.end.column == 0 && selection.end.row > selection.start.row {
5431 end_row -= 1;
5432 }
5433
5434 // Avoid re-indenting a row that has already been indented by a
5435 // previous selection, but still update this selection's column
5436 // to reflect that indentation.
5437 if delta_for_start_row > 0 {
5438 start_row += 1;
5439 selection.start.column += delta_for_start_row;
5440 if selection.end.row == selection.start.row {
5441 selection.end.column += delta_for_start_row;
5442 }
5443 }
5444
5445 let mut delta_for_end_row = 0;
5446 let has_multiple_rows = start_row + 1 != end_row;
5447 for row in start_row..end_row {
5448 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5449 let indent_delta = match (current_indent.kind, indent_kind) {
5450 (IndentKind::Space, IndentKind::Space) => {
5451 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5452 IndentSize::spaces(columns_to_next_tab_stop)
5453 }
5454 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5455 (_, IndentKind::Tab) => IndentSize::tab(),
5456 };
5457
5458 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5459 0
5460 } else {
5461 selection.start.column
5462 };
5463 let row_start = Point::new(row, start);
5464 edits.push((
5465 row_start..row_start,
5466 indent_delta.chars().collect::<String>(),
5467 ));
5468
5469 // Update this selection's endpoints to reflect the indentation.
5470 if row == selection.start.row {
5471 selection.start.column += indent_delta.len;
5472 }
5473 if row == selection.end.row {
5474 selection.end.column += indent_delta.len;
5475 delta_for_end_row = indent_delta.len;
5476 }
5477 }
5478
5479 if selection.start.row == selection.end.row {
5480 delta_for_start_row + delta_for_end_row
5481 } else {
5482 delta_for_end_row
5483 }
5484 }
5485
5486 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5487 if self.read_only(cx) {
5488 return;
5489 }
5490 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5491 let selections = self.selections.all::<Point>(cx);
5492 let mut deletion_ranges = Vec::new();
5493 let mut last_outdent = None;
5494 {
5495 let buffer = self.buffer.read(cx);
5496 let snapshot = buffer.snapshot(cx);
5497 for selection in &selections {
5498 let settings = buffer.settings_at(selection.start, cx);
5499 let tab_size = settings.tab_size.get();
5500 let mut rows = selection.spanned_rows(false, &display_map);
5501
5502 // Avoid re-outdenting a row that has already been outdented by a
5503 // previous selection.
5504 if let Some(last_row) = last_outdent {
5505 if last_row == rows.start {
5506 rows.start = rows.start.next_row();
5507 }
5508 }
5509 let has_multiple_rows = rows.len() > 1;
5510 for row in rows.iter_rows() {
5511 let indent_size = snapshot.indent_size_for_line(row);
5512 if indent_size.len > 0 {
5513 let deletion_len = match indent_size.kind {
5514 IndentKind::Space => {
5515 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5516 if columns_to_prev_tab_stop == 0 {
5517 tab_size
5518 } else {
5519 columns_to_prev_tab_stop
5520 }
5521 }
5522 IndentKind::Tab => 1,
5523 };
5524 let start = if has_multiple_rows
5525 || deletion_len > selection.start.column
5526 || indent_size.len < selection.start.column
5527 {
5528 0
5529 } else {
5530 selection.start.column - deletion_len
5531 };
5532 deletion_ranges.push(
5533 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5534 );
5535 last_outdent = Some(row);
5536 }
5537 }
5538 }
5539 }
5540
5541 self.transact(cx, |this, cx| {
5542 this.buffer.update(cx, |buffer, cx| {
5543 let empty_str: Arc<str> = "".into();
5544 buffer.edit(
5545 deletion_ranges
5546 .into_iter()
5547 .map(|range| (range, empty_str.clone())),
5548 None,
5549 cx,
5550 );
5551 });
5552 let selections = this.selections.all::<usize>(cx);
5553 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5554 });
5555 }
5556
5557 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5558 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5559 let selections = self.selections.all::<Point>(cx);
5560
5561 let mut new_cursors = Vec::new();
5562 let mut edit_ranges = Vec::new();
5563 let mut selections = selections.iter().peekable();
5564 while let Some(selection) = selections.next() {
5565 let mut rows = selection.spanned_rows(false, &display_map);
5566 let goal_display_column = selection.head().to_display_point(&display_map).column();
5567
5568 // Accumulate contiguous regions of rows that we want to delete.
5569 while let Some(next_selection) = selections.peek() {
5570 let next_rows = next_selection.spanned_rows(false, &display_map);
5571 if next_rows.start <= rows.end {
5572 rows.end = next_rows.end;
5573 selections.next().unwrap();
5574 } else {
5575 break;
5576 }
5577 }
5578
5579 let buffer = &display_map.buffer_snapshot;
5580 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5581 let edit_end;
5582 let cursor_buffer_row;
5583 if buffer.max_point().row >= rows.end.0 {
5584 // If there's a line after the range, delete the \n from the end of the row range
5585 // and position the cursor on the next line.
5586 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5587 cursor_buffer_row = rows.end;
5588 } else {
5589 // If there isn't a line after the range, delete the \n from the line before the
5590 // start of the row range and position the cursor there.
5591 edit_start = edit_start.saturating_sub(1);
5592 edit_end = buffer.len();
5593 cursor_buffer_row = rows.start.previous_row();
5594 }
5595
5596 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5597 *cursor.column_mut() =
5598 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5599
5600 new_cursors.push((
5601 selection.id,
5602 buffer.anchor_after(cursor.to_point(&display_map)),
5603 ));
5604 edit_ranges.push(edit_start..edit_end);
5605 }
5606
5607 self.transact(cx, |this, cx| {
5608 let buffer = this.buffer.update(cx, |buffer, cx| {
5609 let empty_str: Arc<str> = "".into();
5610 buffer.edit(
5611 edit_ranges
5612 .into_iter()
5613 .map(|range| (range, empty_str.clone())),
5614 None,
5615 cx,
5616 );
5617 buffer.snapshot(cx)
5618 });
5619 let new_selections = new_cursors
5620 .into_iter()
5621 .map(|(id, cursor)| {
5622 let cursor = cursor.to_point(&buffer);
5623 Selection {
5624 id,
5625 start: cursor,
5626 end: cursor,
5627 reversed: false,
5628 goal: SelectionGoal::None,
5629 }
5630 })
5631 .collect();
5632
5633 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5634 s.select(new_selections);
5635 });
5636 });
5637 }
5638
5639 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5640 if self.read_only(cx) {
5641 return;
5642 }
5643 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5644 for selection in self.selections.all::<Point>(cx) {
5645 let start = MultiBufferRow(selection.start.row);
5646 let end = if selection.start.row == selection.end.row {
5647 MultiBufferRow(selection.start.row + 1)
5648 } else {
5649 MultiBufferRow(selection.end.row)
5650 };
5651
5652 if let Some(last_row_range) = row_ranges.last_mut() {
5653 if start <= last_row_range.end {
5654 last_row_range.end = end;
5655 continue;
5656 }
5657 }
5658 row_ranges.push(start..end);
5659 }
5660
5661 let snapshot = self.buffer.read(cx).snapshot(cx);
5662 let mut cursor_positions = Vec::new();
5663 for row_range in &row_ranges {
5664 let anchor = snapshot.anchor_before(Point::new(
5665 row_range.end.previous_row().0,
5666 snapshot.line_len(row_range.end.previous_row()),
5667 ));
5668 cursor_positions.push(anchor..anchor);
5669 }
5670
5671 self.transact(cx, |this, cx| {
5672 for row_range in row_ranges.into_iter().rev() {
5673 for row in row_range.iter_rows().rev() {
5674 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5675 let next_line_row = row.next_row();
5676 let indent = snapshot.indent_size_for_line(next_line_row);
5677 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5678
5679 let replace = if snapshot.line_len(next_line_row) > indent.len {
5680 " "
5681 } else {
5682 ""
5683 };
5684
5685 this.buffer.update(cx, |buffer, cx| {
5686 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5687 });
5688 }
5689 }
5690
5691 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5692 s.select_anchor_ranges(cursor_positions)
5693 });
5694 });
5695 }
5696
5697 pub fn sort_lines_case_sensitive(
5698 &mut self,
5699 _: &SortLinesCaseSensitive,
5700 cx: &mut ViewContext<Self>,
5701 ) {
5702 self.manipulate_lines(cx, |lines| lines.sort())
5703 }
5704
5705 pub fn sort_lines_case_insensitive(
5706 &mut self,
5707 _: &SortLinesCaseInsensitive,
5708 cx: &mut ViewContext<Self>,
5709 ) {
5710 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5711 }
5712
5713 pub fn unique_lines_case_insensitive(
5714 &mut self,
5715 _: &UniqueLinesCaseInsensitive,
5716 cx: &mut ViewContext<Self>,
5717 ) {
5718 self.manipulate_lines(cx, |lines| {
5719 let mut seen = HashSet::default();
5720 lines.retain(|line| seen.insert(line.to_lowercase()));
5721 })
5722 }
5723
5724 pub fn unique_lines_case_sensitive(
5725 &mut self,
5726 _: &UniqueLinesCaseSensitive,
5727 cx: &mut ViewContext<Self>,
5728 ) {
5729 self.manipulate_lines(cx, |lines| {
5730 let mut seen = HashSet::default();
5731 lines.retain(|line| seen.insert(*line));
5732 })
5733 }
5734
5735 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5736 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5737 if !revert_changes.is_empty() {
5738 self.transact(cx, |editor, cx| {
5739 editor.buffer().update(cx, |multi_buffer, cx| {
5740 for (buffer_id, changes) in revert_changes {
5741 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5742 buffer.update(cx, |buffer, cx| {
5743 buffer.edit(
5744 changes.into_iter().map(|(range, text)| {
5745 (range, text.to_string().map(Arc::<str>::from))
5746 }),
5747 None,
5748 cx,
5749 );
5750 });
5751 }
5752 }
5753 });
5754 editor.change_selections(None, cx, |selections| selections.refresh());
5755 });
5756 }
5757 }
5758
5759 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5760 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5761 let project_path = buffer.read(cx).project_path(cx)?;
5762 let project = self.project.as_ref()?.read(cx);
5763 let entry = project.entry_for_path(&project_path, cx)?;
5764 let abs_path = project.absolute_path(&project_path, cx)?;
5765 let parent = if entry.is_symlink {
5766 abs_path.canonicalize().ok()?
5767 } else {
5768 abs_path
5769 }
5770 .parent()?
5771 .to_path_buf();
5772 Some(parent)
5773 }) {
5774 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5775 }
5776 }
5777
5778 fn gather_revert_changes(
5779 &mut self,
5780 selections: &[Selection<Anchor>],
5781 cx: &mut ViewContext<'_, Editor>,
5782 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5783 let mut revert_changes = HashMap::default();
5784 self.buffer.update(cx, |multi_buffer, cx| {
5785 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5786 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5787 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5788 }
5789 });
5790 revert_changes
5791 }
5792
5793 fn prepare_revert_change(
5794 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5795 multi_buffer: &MultiBuffer,
5796 hunk: &DiffHunk<MultiBufferRow>,
5797 cx: &mut AppContext,
5798 ) -> Option<()> {
5799 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5800 let buffer = buffer.read(cx);
5801 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5802 let buffer_snapshot = buffer.snapshot();
5803 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5804 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5805 probe
5806 .0
5807 .start
5808 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5809 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5810 }) {
5811 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5812 Some(())
5813 } else {
5814 None
5815 }
5816 }
5817
5818 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5819 self.manipulate_lines(cx, |lines| lines.reverse())
5820 }
5821
5822 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5823 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5824 }
5825
5826 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5827 where
5828 Fn: FnMut(&mut Vec<&str>),
5829 {
5830 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5831 let buffer = self.buffer.read(cx).snapshot(cx);
5832
5833 let mut edits = Vec::new();
5834
5835 let selections = self.selections.all::<Point>(cx);
5836 let mut selections = selections.iter().peekable();
5837 let mut contiguous_row_selections = Vec::new();
5838 let mut new_selections = Vec::new();
5839 let mut added_lines = 0;
5840 let mut removed_lines = 0;
5841
5842 while let Some(selection) = selections.next() {
5843 let (start_row, end_row) = consume_contiguous_rows(
5844 &mut contiguous_row_selections,
5845 selection,
5846 &display_map,
5847 &mut selections,
5848 );
5849
5850 let start_point = Point::new(start_row.0, 0);
5851 let end_point = Point::new(
5852 end_row.previous_row().0,
5853 buffer.line_len(end_row.previous_row()),
5854 );
5855 let text = buffer
5856 .text_for_range(start_point..end_point)
5857 .collect::<String>();
5858
5859 let mut lines = text.split('\n').collect_vec();
5860
5861 let lines_before = lines.len();
5862 callback(&mut lines);
5863 let lines_after = lines.len();
5864
5865 edits.push((start_point..end_point, lines.join("\n")));
5866
5867 // Selections must change based on added and removed line count
5868 let start_row =
5869 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5870 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5871 new_selections.push(Selection {
5872 id: selection.id,
5873 start: start_row,
5874 end: end_row,
5875 goal: SelectionGoal::None,
5876 reversed: selection.reversed,
5877 });
5878
5879 if lines_after > lines_before {
5880 added_lines += lines_after - lines_before;
5881 } else if lines_before > lines_after {
5882 removed_lines += lines_before - lines_after;
5883 }
5884 }
5885
5886 self.transact(cx, |this, cx| {
5887 let buffer = this.buffer.update(cx, |buffer, cx| {
5888 buffer.edit(edits, None, cx);
5889 buffer.snapshot(cx)
5890 });
5891
5892 // Recalculate offsets on newly edited buffer
5893 let new_selections = new_selections
5894 .iter()
5895 .map(|s| {
5896 let start_point = Point::new(s.start.0, 0);
5897 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5898 Selection {
5899 id: s.id,
5900 start: buffer.point_to_offset(start_point),
5901 end: buffer.point_to_offset(end_point),
5902 goal: s.goal,
5903 reversed: s.reversed,
5904 }
5905 })
5906 .collect();
5907
5908 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5909 s.select(new_selections);
5910 });
5911
5912 this.request_autoscroll(Autoscroll::fit(), cx);
5913 });
5914 }
5915
5916 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5917 self.manipulate_text(cx, |text| text.to_uppercase())
5918 }
5919
5920 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5921 self.manipulate_text(cx, |text| text.to_lowercase())
5922 }
5923
5924 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5925 self.manipulate_text(cx, |text| {
5926 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5927 // https://github.com/rutrum/convert-case/issues/16
5928 text.split('\n')
5929 .map(|line| line.to_case(Case::Title))
5930 .join("\n")
5931 })
5932 }
5933
5934 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5935 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5936 }
5937
5938 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5939 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5940 }
5941
5942 pub fn convert_to_upper_camel_case(
5943 &mut self,
5944 _: &ConvertToUpperCamelCase,
5945 cx: &mut ViewContext<Self>,
5946 ) {
5947 self.manipulate_text(cx, |text| {
5948 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5949 // https://github.com/rutrum/convert-case/issues/16
5950 text.split('\n')
5951 .map(|line| line.to_case(Case::UpperCamel))
5952 .join("\n")
5953 })
5954 }
5955
5956 pub fn convert_to_lower_camel_case(
5957 &mut self,
5958 _: &ConvertToLowerCamelCase,
5959 cx: &mut ViewContext<Self>,
5960 ) {
5961 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5962 }
5963
5964 pub fn convert_to_opposite_case(
5965 &mut self,
5966 _: &ConvertToOppositeCase,
5967 cx: &mut ViewContext<Self>,
5968 ) {
5969 self.manipulate_text(cx, |text| {
5970 text.chars()
5971 .fold(String::with_capacity(text.len()), |mut t, c| {
5972 if c.is_uppercase() {
5973 t.extend(c.to_lowercase());
5974 } else {
5975 t.extend(c.to_uppercase());
5976 }
5977 t
5978 })
5979 })
5980 }
5981
5982 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5983 where
5984 Fn: FnMut(&str) -> String,
5985 {
5986 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5987 let buffer = self.buffer.read(cx).snapshot(cx);
5988
5989 let mut new_selections = Vec::new();
5990 let mut edits = Vec::new();
5991 let mut selection_adjustment = 0i32;
5992
5993 for selection in self.selections.all::<usize>(cx) {
5994 let selection_is_empty = selection.is_empty();
5995
5996 let (start, end) = if selection_is_empty {
5997 let word_range = movement::surrounding_word(
5998 &display_map,
5999 selection.start.to_display_point(&display_map),
6000 );
6001 let start = word_range.start.to_offset(&display_map, Bias::Left);
6002 let end = word_range.end.to_offset(&display_map, Bias::Left);
6003 (start, end)
6004 } else {
6005 (selection.start, selection.end)
6006 };
6007
6008 let text = buffer.text_for_range(start..end).collect::<String>();
6009 let old_length = text.len() as i32;
6010 let text = callback(&text);
6011
6012 new_selections.push(Selection {
6013 start: (start as i32 - selection_adjustment) as usize,
6014 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6015 goal: SelectionGoal::None,
6016 ..selection
6017 });
6018
6019 selection_adjustment += old_length - text.len() as i32;
6020
6021 edits.push((start..end, text));
6022 }
6023
6024 self.transact(cx, |this, cx| {
6025 this.buffer.update(cx, |buffer, cx| {
6026 buffer.edit(edits, None, cx);
6027 });
6028
6029 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6030 s.select(new_selections);
6031 });
6032
6033 this.request_autoscroll(Autoscroll::fit(), cx);
6034 });
6035 }
6036
6037 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6038 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6039 let buffer = &display_map.buffer_snapshot;
6040 let selections = self.selections.all::<Point>(cx);
6041
6042 let mut edits = Vec::new();
6043 let mut selections_iter = selections.iter().peekable();
6044 while let Some(selection) = selections_iter.next() {
6045 // Avoid duplicating the same lines twice.
6046 let mut rows = selection.spanned_rows(false, &display_map);
6047
6048 while let Some(next_selection) = selections_iter.peek() {
6049 let next_rows = next_selection.spanned_rows(false, &display_map);
6050 if next_rows.start < rows.end {
6051 rows.end = next_rows.end;
6052 selections_iter.next().unwrap();
6053 } else {
6054 break;
6055 }
6056 }
6057
6058 // Copy the text from the selected row region and splice it either at the start
6059 // or end of the region.
6060 let start = Point::new(rows.start.0, 0);
6061 let end = Point::new(
6062 rows.end.previous_row().0,
6063 buffer.line_len(rows.end.previous_row()),
6064 );
6065 let text = buffer
6066 .text_for_range(start..end)
6067 .chain(Some("\n"))
6068 .collect::<String>();
6069 let insert_location = if upwards {
6070 Point::new(rows.end.0, 0)
6071 } else {
6072 start
6073 };
6074 edits.push((insert_location..insert_location, text));
6075 }
6076
6077 self.transact(cx, |this, cx| {
6078 this.buffer.update(cx, |buffer, cx| {
6079 buffer.edit(edits, None, cx);
6080 });
6081
6082 this.request_autoscroll(Autoscroll::fit(), cx);
6083 });
6084 }
6085
6086 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6087 self.duplicate_line(true, cx);
6088 }
6089
6090 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6091 self.duplicate_line(false, cx);
6092 }
6093
6094 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6095 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6096 let buffer = self.buffer.read(cx).snapshot(cx);
6097
6098 let mut edits = Vec::new();
6099 let mut unfold_ranges = Vec::new();
6100 let mut refold_ranges = Vec::new();
6101
6102 let selections = self.selections.all::<Point>(cx);
6103 let mut selections = selections.iter().peekable();
6104 let mut contiguous_row_selections = Vec::new();
6105 let mut new_selections = Vec::new();
6106
6107 while let Some(selection) = selections.next() {
6108 // Find all the selections that span a contiguous row range
6109 let (start_row, end_row) = consume_contiguous_rows(
6110 &mut contiguous_row_selections,
6111 selection,
6112 &display_map,
6113 &mut selections,
6114 );
6115
6116 // Move the text spanned by the row range to be before the line preceding the row range
6117 if start_row.0 > 0 {
6118 let range_to_move = Point::new(
6119 start_row.previous_row().0,
6120 buffer.line_len(start_row.previous_row()),
6121 )
6122 ..Point::new(
6123 end_row.previous_row().0,
6124 buffer.line_len(end_row.previous_row()),
6125 );
6126 let insertion_point = display_map
6127 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6128 .0;
6129
6130 // Don't move lines across excerpts
6131 if buffer
6132 .excerpt_boundaries_in_range((
6133 Bound::Excluded(insertion_point),
6134 Bound::Included(range_to_move.end),
6135 ))
6136 .next()
6137 .is_none()
6138 {
6139 let text = buffer
6140 .text_for_range(range_to_move.clone())
6141 .flat_map(|s| s.chars())
6142 .skip(1)
6143 .chain(['\n'])
6144 .collect::<String>();
6145
6146 edits.push((
6147 buffer.anchor_after(range_to_move.start)
6148 ..buffer.anchor_before(range_to_move.end),
6149 String::new(),
6150 ));
6151 let insertion_anchor = buffer.anchor_after(insertion_point);
6152 edits.push((insertion_anchor..insertion_anchor, text));
6153
6154 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6155
6156 // Move selections up
6157 new_selections.extend(contiguous_row_selections.drain(..).map(
6158 |mut selection| {
6159 selection.start.row -= row_delta;
6160 selection.end.row -= row_delta;
6161 selection
6162 },
6163 ));
6164
6165 // Move folds up
6166 unfold_ranges.push(range_to_move.clone());
6167 for fold in display_map.folds_in_range(
6168 buffer.anchor_before(range_to_move.start)
6169 ..buffer.anchor_after(range_to_move.end),
6170 ) {
6171 let mut start = fold.range.start.to_point(&buffer);
6172 let mut end = fold.range.end.to_point(&buffer);
6173 start.row -= row_delta;
6174 end.row -= row_delta;
6175 refold_ranges.push((start..end, fold.placeholder.clone()));
6176 }
6177 }
6178 }
6179
6180 // If we didn't move line(s), preserve the existing selections
6181 new_selections.append(&mut contiguous_row_selections);
6182 }
6183
6184 self.transact(cx, |this, cx| {
6185 this.unfold_ranges(unfold_ranges, true, true, cx);
6186 this.buffer.update(cx, |buffer, cx| {
6187 for (range, text) in edits {
6188 buffer.edit([(range, text)], None, cx);
6189 }
6190 });
6191 this.fold_ranges(refold_ranges, true, cx);
6192 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6193 s.select(new_selections);
6194 })
6195 });
6196 }
6197
6198 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6199 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6200 let buffer = self.buffer.read(cx).snapshot(cx);
6201
6202 let mut edits = Vec::new();
6203 let mut unfold_ranges = Vec::new();
6204 let mut refold_ranges = Vec::new();
6205
6206 let selections = self.selections.all::<Point>(cx);
6207 let mut selections = selections.iter().peekable();
6208 let mut contiguous_row_selections = Vec::new();
6209 let mut new_selections = Vec::new();
6210
6211 while let Some(selection) = selections.next() {
6212 // Find all the selections that span a contiguous row range
6213 let (start_row, end_row) = consume_contiguous_rows(
6214 &mut contiguous_row_selections,
6215 selection,
6216 &display_map,
6217 &mut selections,
6218 );
6219
6220 // Move the text spanned by the row range to be after the last line of the row range
6221 if end_row.0 <= buffer.max_point().row {
6222 let range_to_move =
6223 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6224 let insertion_point = display_map
6225 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6226 .0;
6227
6228 // Don't move lines across excerpt boundaries
6229 if buffer
6230 .excerpt_boundaries_in_range((
6231 Bound::Excluded(range_to_move.start),
6232 Bound::Included(insertion_point),
6233 ))
6234 .next()
6235 .is_none()
6236 {
6237 let mut text = String::from("\n");
6238 text.extend(buffer.text_for_range(range_to_move.clone()));
6239 text.pop(); // Drop trailing newline
6240 edits.push((
6241 buffer.anchor_after(range_to_move.start)
6242 ..buffer.anchor_before(range_to_move.end),
6243 String::new(),
6244 ));
6245 let insertion_anchor = buffer.anchor_after(insertion_point);
6246 edits.push((insertion_anchor..insertion_anchor, text));
6247
6248 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6249
6250 // Move selections down
6251 new_selections.extend(contiguous_row_selections.drain(..).map(
6252 |mut selection| {
6253 selection.start.row += row_delta;
6254 selection.end.row += row_delta;
6255 selection
6256 },
6257 ));
6258
6259 // Move folds down
6260 unfold_ranges.push(range_to_move.clone());
6261 for fold in display_map.folds_in_range(
6262 buffer.anchor_before(range_to_move.start)
6263 ..buffer.anchor_after(range_to_move.end),
6264 ) {
6265 let mut start = fold.range.start.to_point(&buffer);
6266 let mut end = fold.range.end.to_point(&buffer);
6267 start.row += row_delta;
6268 end.row += row_delta;
6269 refold_ranges.push((start..end, fold.placeholder.clone()));
6270 }
6271 }
6272 }
6273
6274 // If we didn't move line(s), preserve the existing selections
6275 new_selections.append(&mut contiguous_row_selections);
6276 }
6277
6278 self.transact(cx, |this, cx| {
6279 this.unfold_ranges(unfold_ranges, true, true, cx);
6280 this.buffer.update(cx, |buffer, cx| {
6281 for (range, text) in edits {
6282 buffer.edit([(range, text)], None, cx);
6283 }
6284 });
6285 this.fold_ranges(refold_ranges, true, cx);
6286 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6287 });
6288 }
6289
6290 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6291 let text_layout_details = &self.text_layout_details(cx);
6292 self.transact(cx, |this, cx| {
6293 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6294 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6295 let line_mode = s.line_mode;
6296 s.move_with(|display_map, selection| {
6297 if !selection.is_empty() || line_mode {
6298 return;
6299 }
6300
6301 let mut head = selection.head();
6302 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6303 if head.column() == display_map.line_len(head.row()) {
6304 transpose_offset = display_map
6305 .buffer_snapshot
6306 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6307 }
6308
6309 if transpose_offset == 0 {
6310 return;
6311 }
6312
6313 *head.column_mut() += 1;
6314 head = display_map.clip_point(head, Bias::Right);
6315 let goal = SelectionGoal::HorizontalPosition(
6316 display_map
6317 .x_for_display_point(head, &text_layout_details)
6318 .into(),
6319 );
6320 selection.collapse_to(head, goal);
6321
6322 let transpose_start = display_map
6323 .buffer_snapshot
6324 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6325 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6326 let transpose_end = display_map
6327 .buffer_snapshot
6328 .clip_offset(transpose_offset + 1, Bias::Right);
6329 if let Some(ch) =
6330 display_map.buffer_snapshot.chars_at(transpose_start).next()
6331 {
6332 edits.push((transpose_start..transpose_offset, String::new()));
6333 edits.push((transpose_end..transpose_end, ch.to_string()));
6334 }
6335 }
6336 });
6337 edits
6338 });
6339 this.buffer
6340 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6341 let selections = this.selections.all::<usize>(cx);
6342 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6343 s.select(selections);
6344 });
6345 });
6346 }
6347
6348 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6349 let mut text = String::new();
6350 let buffer = self.buffer.read(cx).snapshot(cx);
6351 let mut selections = self.selections.all::<Point>(cx);
6352 let mut clipboard_selections = Vec::with_capacity(selections.len());
6353 {
6354 let max_point = buffer.max_point();
6355 let mut is_first = true;
6356 for selection in &mut selections {
6357 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6358 if is_entire_line {
6359 selection.start = Point::new(selection.start.row, 0);
6360 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6361 selection.goal = SelectionGoal::None;
6362 }
6363 if is_first {
6364 is_first = false;
6365 } else {
6366 text += "\n";
6367 }
6368 let mut len = 0;
6369 for chunk in buffer.text_for_range(selection.start..selection.end) {
6370 text.push_str(chunk);
6371 len += chunk.len();
6372 }
6373 clipboard_selections.push(ClipboardSelection {
6374 len,
6375 is_entire_line,
6376 first_line_indent: buffer
6377 .indent_size_for_line(MultiBufferRow(selection.start.row))
6378 .len,
6379 });
6380 }
6381 }
6382
6383 self.transact(cx, |this, cx| {
6384 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6385 s.select(selections);
6386 });
6387 this.insert("", cx);
6388 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6389 });
6390 }
6391
6392 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6393 let selections = self.selections.all::<Point>(cx);
6394 let buffer = self.buffer.read(cx).read(cx);
6395 let mut text = String::new();
6396
6397 let mut clipboard_selections = Vec::with_capacity(selections.len());
6398 {
6399 let max_point = buffer.max_point();
6400 let mut is_first = true;
6401 for selection in selections.iter() {
6402 let mut start = selection.start;
6403 let mut end = selection.end;
6404 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6405 if is_entire_line {
6406 start = Point::new(start.row, 0);
6407 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6408 }
6409 if is_first {
6410 is_first = false;
6411 } else {
6412 text += "\n";
6413 }
6414 let mut len = 0;
6415 for chunk in buffer.text_for_range(start..end) {
6416 text.push_str(chunk);
6417 len += chunk.len();
6418 }
6419 clipboard_selections.push(ClipboardSelection {
6420 len,
6421 is_entire_line,
6422 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6423 });
6424 }
6425 }
6426
6427 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6428 }
6429
6430 pub fn do_paste(
6431 &mut self,
6432 text: &String,
6433 clipboard_selections: Option<Vec<ClipboardSelection>>,
6434 handle_entire_lines: bool,
6435 cx: &mut ViewContext<Self>,
6436 ) {
6437 if self.read_only(cx) {
6438 return;
6439 }
6440
6441 let clipboard_text = Cow::Borrowed(text);
6442
6443 self.transact(cx, |this, cx| {
6444 if let Some(mut clipboard_selections) = clipboard_selections {
6445 let old_selections = this.selections.all::<usize>(cx);
6446 let all_selections_were_entire_line =
6447 clipboard_selections.iter().all(|s| s.is_entire_line);
6448 let first_selection_indent_column =
6449 clipboard_selections.first().map(|s| s.first_line_indent);
6450 if clipboard_selections.len() != old_selections.len() {
6451 clipboard_selections.drain(..);
6452 }
6453
6454 this.buffer.update(cx, |buffer, cx| {
6455 let snapshot = buffer.read(cx);
6456 let mut start_offset = 0;
6457 let mut edits = Vec::new();
6458 let mut original_indent_columns = Vec::new();
6459 for (ix, selection) in old_selections.iter().enumerate() {
6460 let to_insert;
6461 let entire_line;
6462 let original_indent_column;
6463 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6464 let end_offset = start_offset + clipboard_selection.len;
6465 to_insert = &clipboard_text[start_offset..end_offset];
6466 entire_line = clipboard_selection.is_entire_line;
6467 start_offset = end_offset + 1;
6468 original_indent_column = Some(clipboard_selection.first_line_indent);
6469 } else {
6470 to_insert = clipboard_text.as_str();
6471 entire_line = all_selections_were_entire_line;
6472 original_indent_column = first_selection_indent_column
6473 }
6474
6475 // If the corresponding selection was empty when this slice of the
6476 // clipboard text was written, then the entire line containing the
6477 // selection was copied. If this selection is also currently empty,
6478 // then paste the line before the current line of the buffer.
6479 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6480 let column = selection.start.to_point(&snapshot).column as usize;
6481 let line_start = selection.start - column;
6482 line_start..line_start
6483 } else {
6484 selection.range()
6485 };
6486
6487 edits.push((range, to_insert));
6488 original_indent_columns.extend(original_indent_column);
6489 }
6490 drop(snapshot);
6491
6492 buffer.edit(
6493 edits,
6494 Some(AutoindentMode::Block {
6495 original_indent_columns,
6496 }),
6497 cx,
6498 );
6499 });
6500
6501 let selections = this.selections.all::<usize>(cx);
6502 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6503 } else {
6504 this.insert(&clipboard_text, cx);
6505 }
6506 });
6507 }
6508
6509 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6510 if let Some(item) = cx.read_from_clipboard() {
6511 self.do_paste(
6512 item.text(),
6513 item.metadata::<Vec<ClipboardSelection>>(),
6514 true,
6515 cx,
6516 )
6517 };
6518 }
6519
6520 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6521 if self.read_only(cx) {
6522 return;
6523 }
6524
6525 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6526 if let Some((selections, _)) =
6527 self.selection_history.transaction(transaction_id).cloned()
6528 {
6529 self.change_selections(None, cx, |s| {
6530 s.select_anchors(selections.to_vec());
6531 });
6532 }
6533 self.request_autoscroll(Autoscroll::fit(), cx);
6534 self.unmark_text(cx);
6535 self.refresh_inline_completion(true, cx);
6536 cx.emit(EditorEvent::Edited { transaction_id });
6537 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6538 }
6539 }
6540
6541 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6542 if self.read_only(cx) {
6543 return;
6544 }
6545
6546 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6547 if let Some((_, Some(selections))) =
6548 self.selection_history.transaction(transaction_id).cloned()
6549 {
6550 self.change_selections(None, cx, |s| {
6551 s.select_anchors(selections.to_vec());
6552 });
6553 }
6554 self.request_autoscroll(Autoscroll::fit(), cx);
6555 self.unmark_text(cx);
6556 self.refresh_inline_completion(true, cx);
6557 cx.emit(EditorEvent::Edited { transaction_id });
6558 }
6559 }
6560
6561 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6562 self.buffer
6563 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6564 }
6565
6566 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6567 self.buffer
6568 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6569 }
6570
6571 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6572 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6573 let line_mode = s.line_mode;
6574 s.move_with(|map, selection| {
6575 let cursor = if selection.is_empty() && !line_mode {
6576 movement::left(map, selection.start)
6577 } else {
6578 selection.start
6579 };
6580 selection.collapse_to(cursor, SelectionGoal::None);
6581 });
6582 })
6583 }
6584
6585 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6586 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6587 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6588 })
6589 }
6590
6591 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6592 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6593 let line_mode = s.line_mode;
6594 s.move_with(|map, selection| {
6595 let cursor = if selection.is_empty() && !line_mode {
6596 movement::right(map, selection.end)
6597 } else {
6598 selection.end
6599 };
6600 selection.collapse_to(cursor, SelectionGoal::None)
6601 });
6602 })
6603 }
6604
6605 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6606 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6607 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6608 })
6609 }
6610
6611 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6612 if self.take_rename(true, cx).is_some() {
6613 return;
6614 }
6615
6616 if matches!(self.mode, EditorMode::SingleLine) {
6617 cx.propagate();
6618 return;
6619 }
6620
6621 let text_layout_details = &self.text_layout_details(cx);
6622 let selection_count = self.selections.count();
6623 let first_selection = self.selections.first_anchor();
6624
6625 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6626 let line_mode = s.line_mode;
6627 s.move_with(|map, selection| {
6628 if !selection.is_empty() && !line_mode {
6629 selection.goal = SelectionGoal::None;
6630 }
6631 let (cursor, goal) = movement::up(
6632 map,
6633 selection.start,
6634 selection.goal,
6635 false,
6636 &text_layout_details,
6637 );
6638 selection.collapse_to(cursor, goal);
6639 });
6640 });
6641
6642 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6643 {
6644 cx.propagate();
6645 }
6646 }
6647
6648 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6649 if self.take_rename(true, cx).is_some() {
6650 return;
6651 }
6652
6653 if matches!(self.mode, EditorMode::SingleLine) {
6654 cx.propagate();
6655 return;
6656 }
6657
6658 let text_layout_details = &self.text_layout_details(cx);
6659
6660 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6661 let line_mode = s.line_mode;
6662 s.move_with(|map, selection| {
6663 if !selection.is_empty() && !line_mode {
6664 selection.goal = SelectionGoal::None;
6665 }
6666 let (cursor, goal) = movement::up_by_rows(
6667 map,
6668 selection.start,
6669 action.lines,
6670 selection.goal,
6671 false,
6672 &text_layout_details,
6673 );
6674 selection.collapse_to(cursor, goal);
6675 });
6676 })
6677 }
6678
6679 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6680 if self.take_rename(true, cx).is_some() {
6681 return;
6682 }
6683
6684 if matches!(self.mode, EditorMode::SingleLine) {
6685 cx.propagate();
6686 return;
6687 }
6688
6689 let text_layout_details = &self.text_layout_details(cx);
6690
6691 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6692 let line_mode = s.line_mode;
6693 s.move_with(|map, selection| {
6694 if !selection.is_empty() && !line_mode {
6695 selection.goal = SelectionGoal::None;
6696 }
6697 let (cursor, goal) = movement::down_by_rows(
6698 map,
6699 selection.start,
6700 action.lines,
6701 selection.goal,
6702 false,
6703 &text_layout_details,
6704 );
6705 selection.collapse_to(cursor, goal);
6706 });
6707 })
6708 }
6709
6710 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6711 let text_layout_details = &self.text_layout_details(cx);
6712 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6713 s.move_heads_with(|map, head, goal| {
6714 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6715 })
6716 })
6717 }
6718
6719 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6720 let text_layout_details = &self.text_layout_details(cx);
6721 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6722 s.move_heads_with(|map, head, goal| {
6723 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6724 })
6725 })
6726 }
6727
6728 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
6729 let Some(row_count) = self.visible_row_count() else {
6730 return;
6731 };
6732
6733 let text_layout_details = &self.text_layout_details(cx);
6734
6735 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6736 s.move_heads_with(|map, head, goal| {
6737 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
6738 })
6739 })
6740 }
6741
6742 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6743 if self.take_rename(true, cx).is_some() {
6744 return;
6745 }
6746
6747 if matches!(self.mode, EditorMode::SingleLine) {
6748 cx.propagate();
6749 return;
6750 }
6751
6752 let Some(row_count) = self.visible_row_count() else {
6753 return;
6754 };
6755
6756 let autoscroll = if action.center_cursor {
6757 Autoscroll::center()
6758 } else {
6759 Autoscroll::fit()
6760 };
6761
6762 let text_layout_details = &self.text_layout_details(cx);
6763
6764 self.change_selections(Some(autoscroll), cx, |s| {
6765 let line_mode = s.line_mode;
6766 s.move_with(|map, selection| {
6767 if !selection.is_empty() && !line_mode {
6768 selection.goal = SelectionGoal::None;
6769 }
6770 let (cursor, goal) = movement::up_by_rows(
6771 map,
6772 selection.end,
6773 row_count,
6774 selection.goal,
6775 false,
6776 &text_layout_details,
6777 );
6778 selection.collapse_to(cursor, goal);
6779 });
6780 });
6781 }
6782
6783 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6784 let text_layout_details = &self.text_layout_details(cx);
6785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6786 s.move_heads_with(|map, head, goal| {
6787 movement::up(map, head, goal, false, &text_layout_details)
6788 })
6789 })
6790 }
6791
6792 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6793 self.take_rename(true, cx);
6794
6795 if self.mode == EditorMode::SingleLine {
6796 cx.propagate();
6797 return;
6798 }
6799
6800 let text_layout_details = &self.text_layout_details(cx);
6801 let selection_count = self.selections.count();
6802 let first_selection = self.selections.first_anchor();
6803
6804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6805 let line_mode = s.line_mode;
6806 s.move_with(|map, selection| {
6807 if !selection.is_empty() && !line_mode {
6808 selection.goal = SelectionGoal::None;
6809 }
6810 let (cursor, goal) = movement::down(
6811 map,
6812 selection.end,
6813 selection.goal,
6814 false,
6815 &text_layout_details,
6816 );
6817 selection.collapse_to(cursor, goal);
6818 });
6819 });
6820
6821 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6822 {
6823 cx.propagate();
6824 }
6825 }
6826
6827 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
6828 let Some(row_count) = self.visible_row_count() else {
6829 return;
6830 };
6831
6832 let text_layout_details = &self.text_layout_details(cx);
6833
6834 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6835 s.move_heads_with(|map, head, goal| {
6836 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
6837 })
6838 })
6839 }
6840
6841 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6842 if self.take_rename(true, cx).is_some() {
6843 return;
6844 }
6845
6846 if self
6847 .context_menu
6848 .write()
6849 .as_mut()
6850 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6851 .unwrap_or(false)
6852 {
6853 return;
6854 }
6855
6856 if matches!(self.mode, EditorMode::SingleLine) {
6857 cx.propagate();
6858 return;
6859 }
6860
6861 let Some(row_count) = self.visible_row_count() else {
6862 return;
6863 };
6864
6865 let autoscroll = if action.center_cursor {
6866 Autoscroll::center()
6867 } else {
6868 Autoscroll::fit()
6869 };
6870
6871 let text_layout_details = &self.text_layout_details(cx);
6872 self.change_selections(Some(autoscroll), cx, |s| {
6873 let line_mode = s.line_mode;
6874 s.move_with(|map, selection| {
6875 if !selection.is_empty() && !line_mode {
6876 selection.goal = SelectionGoal::None;
6877 }
6878 let (cursor, goal) = movement::down_by_rows(
6879 map,
6880 selection.end,
6881 row_count,
6882 selection.goal,
6883 false,
6884 &text_layout_details,
6885 );
6886 selection.collapse_to(cursor, goal);
6887 });
6888 });
6889 }
6890
6891 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6892 let text_layout_details = &self.text_layout_details(cx);
6893 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6894 s.move_heads_with(|map, head, goal| {
6895 movement::down(map, head, goal, false, &text_layout_details)
6896 })
6897 });
6898 }
6899
6900 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6901 if let Some(context_menu) = self.context_menu.write().as_mut() {
6902 context_menu.select_first(self.project.as_ref(), cx);
6903 }
6904 }
6905
6906 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6907 if let Some(context_menu) = self.context_menu.write().as_mut() {
6908 context_menu.select_prev(self.project.as_ref(), cx);
6909 }
6910 }
6911
6912 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6913 if let Some(context_menu) = self.context_menu.write().as_mut() {
6914 context_menu.select_next(self.project.as_ref(), cx);
6915 }
6916 }
6917
6918 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6919 if let Some(context_menu) = self.context_menu.write().as_mut() {
6920 context_menu.select_last(self.project.as_ref(), cx);
6921 }
6922 }
6923
6924 pub fn move_to_previous_word_start(
6925 &mut self,
6926 _: &MoveToPreviousWordStart,
6927 cx: &mut ViewContext<Self>,
6928 ) {
6929 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6930 s.move_cursors_with(|map, head, _| {
6931 (
6932 movement::previous_word_start(map, head),
6933 SelectionGoal::None,
6934 )
6935 });
6936 })
6937 }
6938
6939 pub fn move_to_previous_subword_start(
6940 &mut self,
6941 _: &MoveToPreviousSubwordStart,
6942 cx: &mut ViewContext<Self>,
6943 ) {
6944 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6945 s.move_cursors_with(|map, head, _| {
6946 (
6947 movement::previous_subword_start(map, head),
6948 SelectionGoal::None,
6949 )
6950 });
6951 })
6952 }
6953
6954 pub fn select_to_previous_word_start(
6955 &mut self,
6956 _: &SelectToPreviousWordStart,
6957 cx: &mut ViewContext<Self>,
6958 ) {
6959 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6960 s.move_heads_with(|map, head, _| {
6961 (
6962 movement::previous_word_start(map, head),
6963 SelectionGoal::None,
6964 )
6965 });
6966 })
6967 }
6968
6969 pub fn select_to_previous_subword_start(
6970 &mut self,
6971 _: &SelectToPreviousSubwordStart,
6972 cx: &mut ViewContext<Self>,
6973 ) {
6974 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6975 s.move_heads_with(|map, head, _| {
6976 (
6977 movement::previous_subword_start(map, head),
6978 SelectionGoal::None,
6979 )
6980 });
6981 })
6982 }
6983
6984 pub fn delete_to_previous_word_start(
6985 &mut self,
6986 _: &DeleteToPreviousWordStart,
6987 cx: &mut ViewContext<Self>,
6988 ) {
6989 self.transact(cx, |this, cx| {
6990 this.select_autoclose_pair(cx);
6991 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6992 let line_mode = s.line_mode;
6993 s.move_with(|map, selection| {
6994 if selection.is_empty() && !line_mode {
6995 let cursor = movement::previous_word_start(map, selection.head());
6996 selection.set_head(cursor, SelectionGoal::None);
6997 }
6998 });
6999 });
7000 this.insert("", cx);
7001 });
7002 }
7003
7004 pub fn delete_to_previous_subword_start(
7005 &mut self,
7006 _: &DeleteToPreviousSubwordStart,
7007 cx: &mut ViewContext<Self>,
7008 ) {
7009 self.transact(cx, |this, cx| {
7010 this.select_autoclose_pair(cx);
7011 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7012 let line_mode = s.line_mode;
7013 s.move_with(|map, selection| {
7014 if selection.is_empty() && !line_mode {
7015 let cursor = movement::previous_subword_start(map, selection.head());
7016 selection.set_head(cursor, SelectionGoal::None);
7017 }
7018 });
7019 });
7020 this.insert("", cx);
7021 });
7022 }
7023
7024 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7025 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7026 s.move_cursors_with(|map, head, _| {
7027 (movement::next_word_end(map, head), SelectionGoal::None)
7028 });
7029 })
7030 }
7031
7032 pub fn move_to_next_subword_end(
7033 &mut self,
7034 _: &MoveToNextSubwordEnd,
7035 cx: &mut ViewContext<Self>,
7036 ) {
7037 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7038 s.move_cursors_with(|map, head, _| {
7039 (movement::next_subword_end(map, head), SelectionGoal::None)
7040 });
7041 })
7042 }
7043
7044 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7045 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7046 s.move_heads_with(|map, head, _| {
7047 (movement::next_word_end(map, head), SelectionGoal::None)
7048 });
7049 })
7050 }
7051
7052 pub fn select_to_next_subword_end(
7053 &mut self,
7054 _: &SelectToNextSubwordEnd,
7055 cx: &mut ViewContext<Self>,
7056 ) {
7057 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7058 s.move_heads_with(|map, head, _| {
7059 (movement::next_subword_end(map, head), SelectionGoal::None)
7060 });
7061 })
7062 }
7063
7064 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7065 self.transact(cx, |this, cx| {
7066 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7067 let line_mode = s.line_mode;
7068 s.move_with(|map, selection| {
7069 if selection.is_empty() && !line_mode {
7070 let cursor = movement::next_word_end(map, selection.head());
7071 selection.set_head(cursor, SelectionGoal::None);
7072 }
7073 });
7074 });
7075 this.insert("", cx);
7076 });
7077 }
7078
7079 pub fn delete_to_next_subword_end(
7080 &mut self,
7081 _: &DeleteToNextSubwordEnd,
7082 cx: &mut ViewContext<Self>,
7083 ) {
7084 self.transact(cx, |this, cx| {
7085 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7086 s.move_with(|map, selection| {
7087 if selection.is_empty() {
7088 let cursor = movement::next_subword_end(map, selection.head());
7089 selection.set_head(cursor, SelectionGoal::None);
7090 }
7091 });
7092 });
7093 this.insert("", cx);
7094 });
7095 }
7096
7097 pub fn move_to_beginning_of_line(
7098 &mut self,
7099 action: &MoveToBeginningOfLine,
7100 cx: &mut ViewContext<Self>,
7101 ) {
7102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7103 s.move_cursors_with(|map, head, _| {
7104 (
7105 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7106 SelectionGoal::None,
7107 )
7108 });
7109 })
7110 }
7111
7112 pub fn select_to_beginning_of_line(
7113 &mut self,
7114 action: &SelectToBeginningOfLine,
7115 cx: &mut ViewContext<Self>,
7116 ) {
7117 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7118 s.move_heads_with(|map, head, _| {
7119 (
7120 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7121 SelectionGoal::None,
7122 )
7123 });
7124 });
7125 }
7126
7127 pub fn delete_to_beginning_of_line(
7128 &mut self,
7129 _: &DeleteToBeginningOfLine,
7130 cx: &mut ViewContext<Self>,
7131 ) {
7132 self.transact(cx, |this, cx| {
7133 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7134 s.move_with(|_, selection| {
7135 selection.reversed = true;
7136 });
7137 });
7138
7139 this.select_to_beginning_of_line(
7140 &SelectToBeginningOfLine {
7141 stop_at_soft_wraps: false,
7142 },
7143 cx,
7144 );
7145 this.backspace(&Backspace, cx);
7146 });
7147 }
7148
7149 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7151 s.move_cursors_with(|map, head, _| {
7152 (
7153 movement::line_end(map, head, action.stop_at_soft_wraps),
7154 SelectionGoal::None,
7155 )
7156 });
7157 })
7158 }
7159
7160 pub fn select_to_end_of_line(
7161 &mut self,
7162 action: &SelectToEndOfLine,
7163 cx: &mut ViewContext<Self>,
7164 ) {
7165 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7166 s.move_heads_with(|map, head, _| {
7167 (
7168 movement::line_end(map, head, action.stop_at_soft_wraps),
7169 SelectionGoal::None,
7170 )
7171 });
7172 })
7173 }
7174
7175 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7176 self.transact(cx, |this, cx| {
7177 this.select_to_end_of_line(
7178 &SelectToEndOfLine {
7179 stop_at_soft_wraps: false,
7180 },
7181 cx,
7182 );
7183 this.delete(&Delete, cx);
7184 });
7185 }
7186
7187 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7188 self.transact(cx, |this, cx| {
7189 this.select_to_end_of_line(
7190 &SelectToEndOfLine {
7191 stop_at_soft_wraps: false,
7192 },
7193 cx,
7194 );
7195 this.cut(&Cut, cx);
7196 });
7197 }
7198
7199 pub fn move_to_start_of_paragraph(
7200 &mut self,
7201 _: &MoveToStartOfParagraph,
7202 cx: &mut ViewContext<Self>,
7203 ) {
7204 if matches!(self.mode, EditorMode::SingleLine) {
7205 cx.propagate();
7206 return;
7207 }
7208
7209 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7210 s.move_with(|map, selection| {
7211 selection.collapse_to(
7212 movement::start_of_paragraph(map, selection.head(), 1),
7213 SelectionGoal::None,
7214 )
7215 });
7216 })
7217 }
7218
7219 pub fn move_to_end_of_paragraph(
7220 &mut self,
7221 _: &MoveToEndOfParagraph,
7222 cx: &mut ViewContext<Self>,
7223 ) {
7224 if matches!(self.mode, EditorMode::SingleLine) {
7225 cx.propagate();
7226 return;
7227 }
7228
7229 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7230 s.move_with(|map, selection| {
7231 selection.collapse_to(
7232 movement::end_of_paragraph(map, selection.head(), 1),
7233 SelectionGoal::None,
7234 )
7235 });
7236 })
7237 }
7238
7239 pub fn select_to_start_of_paragraph(
7240 &mut self,
7241 _: &SelectToStartOfParagraph,
7242 cx: &mut ViewContext<Self>,
7243 ) {
7244 if matches!(self.mode, EditorMode::SingleLine) {
7245 cx.propagate();
7246 return;
7247 }
7248
7249 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7250 s.move_heads_with(|map, head, _| {
7251 (
7252 movement::start_of_paragraph(map, head, 1),
7253 SelectionGoal::None,
7254 )
7255 });
7256 })
7257 }
7258
7259 pub fn select_to_end_of_paragraph(
7260 &mut self,
7261 _: &SelectToEndOfParagraph,
7262 cx: &mut ViewContext<Self>,
7263 ) {
7264 if matches!(self.mode, EditorMode::SingleLine) {
7265 cx.propagate();
7266 return;
7267 }
7268
7269 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7270 s.move_heads_with(|map, head, _| {
7271 (
7272 movement::end_of_paragraph(map, head, 1),
7273 SelectionGoal::None,
7274 )
7275 });
7276 })
7277 }
7278
7279 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7280 if matches!(self.mode, EditorMode::SingleLine) {
7281 cx.propagate();
7282 return;
7283 }
7284
7285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7286 s.select_ranges(vec![0..0]);
7287 });
7288 }
7289
7290 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7291 let mut selection = self.selections.last::<Point>(cx);
7292 selection.set_head(Point::zero(), SelectionGoal::None);
7293
7294 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7295 s.select(vec![selection]);
7296 });
7297 }
7298
7299 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7300 if matches!(self.mode, EditorMode::SingleLine) {
7301 cx.propagate();
7302 return;
7303 }
7304
7305 let cursor = self.buffer.read(cx).read(cx).len();
7306 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7307 s.select_ranges(vec![cursor..cursor])
7308 });
7309 }
7310
7311 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7312 self.nav_history = nav_history;
7313 }
7314
7315 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7316 self.nav_history.as_ref()
7317 }
7318
7319 fn push_to_nav_history(
7320 &mut self,
7321 cursor_anchor: Anchor,
7322 new_position: Option<Point>,
7323 cx: &mut ViewContext<Self>,
7324 ) {
7325 if let Some(nav_history) = self.nav_history.as_mut() {
7326 let buffer = self.buffer.read(cx).read(cx);
7327 let cursor_position = cursor_anchor.to_point(&buffer);
7328 let scroll_state = self.scroll_manager.anchor();
7329 let scroll_top_row = scroll_state.top_row(&buffer);
7330 drop(buffer);
7331
7332 if let Some(new_position) = new_position {
7333 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7334 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7335 return;
7336 }
7337 }
7338
7339 nav_history.push(
7340 Some(NavigationData {
7341 cursor_anchor,
7342 cursor_position,
7343 scroll_anchor: scroll_state,
7344 scroll_top_row,
7345 }),
7346 cx,
7347 );
7348 }
7349 }
7350
7351 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7352 let buffer = self.buffer.read(cx).snapshot(cx);
7353 let mut selection = self.selections.first::<usize>(cx);
7354 selection.set_head(buffer.len(), SelectionGoal::None);
7355 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7356 s.select(vec![selection]);
7357 });
7358 }
7359
7360 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7361 let end = self.buffer.read(cx).read(cx).len();
7362 self.change_selections(None, cx, |s| {
7363 s.select_ranges(vec![0..end]);
7364 });
7365 }
7366
7367 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7368 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7369 let mut selections = self.selections.all::<Point>(cx);
7370 let max_point = display_map.buffer_snapshot.max_point();
7371 for selection in &mut selections {
7372 let rows = selection.spanned_rows(true, &display_map);
7373 selection.start = Point::new(rows.start.0, 0);
7374 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7375 selection.reversed = false;
7376 }
7377 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7378 s.select(selections);
7379 });
7380 }
7381
7382 pub fn split_selection_into_lines(
7383 &mut self,
7384 _: &SplitSelectionIntoLines,
7385 cx: &mut ViewContext<Self>,
7386 ) {
7387 let mut to_unfold = Vec::new();
7388 let mut new_selection_ranges = Vec::new();
7389 {
7390 let selections = self.selections.all::<Point>(cx);
7391 let buffer = self.buffer.read(cx).read(cx);
7392 for selection in selections {
7393 for row in selection.start.row..selection.end.row {
7394 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7395 new_selection_ranges.push(cursor..cursor);
7396 }
7397 new_selection_ranges.push(selection.end..selection.end);
7398 to_unfold.push(selection.start..selection.end);
7399 }
7400 }
7401 self.unfold_ranges(to_unfold, true, true, cx);
7402 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7403 s.select_ranges(new_selection_ranges);
7404 });
7405 }
7406
7407 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7408 self.add_selection(true, cx);
7409 }
7410
7411 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7412 self.add_selection(false, cx);
7413 }
7414
7415 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7416 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7417 let mut selections = self.selections.all::<Point>(cx);
7418 let text_layout_details = self.text_layout_details(cx);
7419 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7420 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7421 let range = oldest_selection.display_range(&display_map).sorted();
7422
7423 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7424 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7425 let positions = start_x.min(end_x)..start_x.max(end_x);
7426
7427 selections.clear();
7428 let mut stack = Vec::new();
7429 for row in range.start.row().0..=range.end.row().0 {
7430 if let Some(selection) = self.selections.build_columnar_selection(
7431 &display_map,
7432 DisplayRow(row),
7433 &positions,
7434 oldest_selection.reversed,
7435 &text_layout_details,
7436 ) {
7437 stack.push(selection.id);
7438 selections.push(selection);
7439 }
7440 }
7441
7442 if above {
7443 stack.reverse();
7444 }
7445
7446 AddSelectionsState { above, stack }
7447 });
7448
7449 let last_added_selection = *state.stack.last().unwrap();
7450 let mut new_selections = Vec::new();
7451 if above == state.above {
7452 let end_row = if above {
7453 DisplayRow(0)
7454 } else {
7455 display_map.max_point().row()
7456 };
7457
7458 'outer: for selection in selections {
7459 if selection.id == last_added_selection {
7460 let range = selection.display_range(&display_map).sorted();
7461 debug_assert_eq!(range.start.row(), range.end.row());
7462 let mut row = range.start.row();
7463 let positions =
7464 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7465 px(start)..px(end)
7466 } else {
7467 let start_x =
7468 display_map.x_for_display_point(range.start, &text_layout_details);
7469 let end_x =
7470 display_map.x_for_display_point(range.end, &text_layout_details);
7471 start_x.min(end_x)..start_x.max(end_x)
7472 };
7473
7474 while row != end_row {
7475 if above {
7476 row.0 -= 1;
7477 } else {
7478 row.0 += 1;
7479 }
7480
7481 if let Some(new_selection) = self.selections.build_columnar_selection(
7482 &display_map,
7483 row,
7484 &positions,
7485 selection.reversed,
7486 &text_layout_details,
7487 ) {
7488 state.stack.push(new_selection.id);
7489 if above {
7490 new_selections.push(new_selection);
7491 new_selections.push(selection);
7492 } else {
7493 new_selections.push(selection);
7494 new_selections.push(new_selection);
7495 }
7496
7497 continue 'outer;
7498 }
7499 }
7500 }
7501
7502 new_selections.push(selection);
7503 }
7504 } else {
7505 new_selections = selections;
7506 new_selections.retain(|s| s.id != last_added_selection);
7507 state.stack.pop();
7508 }
7509
7510 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7511 s.select(new_selections);
7512 });
7513 if state.stack.len() > 1 {
7514 self.add_selections_state = Some(state);
7515 }
7516 }
7517
7518 pub fn select_next_match_internal(
7519 &mut self,
7520 display_map: &DisplaySnapshot,
7521 replace_newest: bool,
7522 autoscroll: Option<Autoscroll>,
7523 cx: &mut ViewContext<Self>,
7524 ) -> Result<()> {
7525 fn select_next_match_ranges(
7526 this: &mut Editor,
7527 range: Range<usize>,
7528 replace_newest: bool,
7529 auto_scroll: Option<Autoscroll>,
7530 cx: &mut ViewContext<Editor>,
7531 ) {
7532 this.unfold_ranges([range.clone()], false, true, cx);
7533 this.change_selections(auto_scroll, cx, |s| {
7534 if replace_newest {
7535 s.delete(s.newest_anchor().id);
7536 }
7537 s.insert_range(range.clone());
7538 });
7539 }
7540
7541 let buffer = &display_map.buffer_snapshot;
7542 let mut selections = self.selections.all::<usize>(cx);
7543 if let Some(mut select_next_state) = self.select_next_state.take() {
7544 let query = &select_next_state.query;
7545 if !select_next_state.done {
7546 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7547 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7548 let mut next_selected_range = None;
7549
7550 let bytes_after_last_selection =
7551 buffer.bytes_in_range(last_selection.end..buffer.len());
7552 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7553 let query_matches = query
7554 .stream_find_iter(bytes_after_last_selection)
7555 .map(|result| (last_selection.end, result))
7556 .chain(
7557 query
7558 .stream_find_iter(bytes_before_first_selection)
7559 .map(|result| (0, result)),
7560 );
7561
7562 for (start_offset, query_match) in query_matches {
7563 let query_match = query_match.unwrap(); // can only fail due to I/O
7564 let offset_range =
7565 start_offset + query_match.start()..start_offset + query_match.end();
7566 let display_range = offset_range.start.to_display_point(&display_map)
7567 ..offset_range.end.to_display_point(&display_map);
7568
7569 if !select_next_state.wordwise
7570 || (!movement::is_inside_word(&display_map, display_range.start)
7571 && !movement::is_inside_word(&display_map, display_range.end))
7572 {
7573 // TODO: This is n^2, because we might check all the selections
7574 if !selections
7575 .iter()
7576 .any(|selection| selection.range().overlaps(&offset_range))
7577 {
7578 next_selected_range = Some(offset_range);
7579 break;
7580 }
7581 }
7582 }
7583
7584 if let Some(next_selected_range) = next_selected_range {
7585 select_next_match_ranges(
7586 self,
7587 next_selected_range,
7588 replace_newest,
7589 autoscroll,
7590 cx,
7591 );
7592 } else {
7593 select_next_state.done = true;
7594 }
7595 }
7596
7597 self.select_next_state = Some(select_next_state);
7598 } else {
7599 let mut only_carets = true;
7600 let mut same_text_selected = true;
7601 let mut selected_text = None;
7602
7603 let mut selections_iter = selections.iter().peekable();
7604 while let Some(selection) = selections_iter.next() {
7605 if selection.start != selection.end {
7606 only_carets = false;
7607 }
7608
7609 if same_text_selected {
7610 if selected_text.is_none() {
7611 selected_text =
7612 Some(buffer.text_for_range(selection.range()).collect::<String>());
7613 }
7614
7615 if let Some(next_selection) = selections_iter.peek() {
7616 if next_selection.range().len() == selection.range().len() {
7617 let next_selected_text = buffer
7618 .text_for_range(next_selection.range())
7619 .collect::<String>();
7620 if Some(next_selected_text) != selected_text {
7621 same_text_selected = false;
7622 selected_text = None;
7623 }
7624 } else {
7625 same_text_selected = false;
7626 selected_text = None;
7627 }
7628 }
7629 }
7630 }
7631
7632 if only_carets {
7633 for selection in &mut selections {
7634 let word_range = movement::surrounding_word(
7635 &display_map,
7636 selection.start.to_display_point(&display_map),
7637 );
7638 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7639 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7640 selection.goal = SelectionGoal::None;
7641 selection.reversed = false;
7642 select_next_match_ranges(
7643 self,
7644 selection.start..selection.end,
7645 replace_newest,
7646 autoscroll,
7647 cx,
7648 );
7649 }
7650
7651 if selections.len() == 1 {
7652 let selection = selections
7653 .last()
7654 .expect("ensured that there's only one selection");
7655 let query = buffer
7656 .text_for_range(selection.start..selection.end)
7657 .collect::<String>();
7658 let is_empty = query.is_empty();
7659 let select_state = SelectNextState {
7660 query: AhoCorasick::new(&[query])?,
7661 wordwise: true,
7662 done: is_empty,
7663 };
7664 self.select_next_state = Some(select_state);
7665 } else {
7666 self.select_next_state = None;
7667 }
7668 } else if let Some(selected_text) = selected_text {
7669 self.select_next_state = Some(SelectNextState {
7670 query: AhoCorasick::new(&[selected_text])?,
7671 wordwise: false,
7672 done: false,
7673 });
7674 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7675 }
7676 }
7677 Ok(())
7678 }
7679
7680 pub fn select_all_matches(
7681 &mut self,
7682 _action: &SelectAllMatches,
7683 cx: &mut ViewContext<Self>,
7684 ) -> Result<()> {
7685 self.push_to_selection_history();
7686 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7687
7688 self.select_next_match_internal(&display_map, false, None, cx)?;
7689 let Some(select_next_state) = self.select_next_state.as_mut() else {
7690 return Ok(());
7691 };
7692 if select_next_state.done {
7693 return Ok(());
7694 }
7695
7696 let mut new_selections = self.selections.all::<usize>(cx);
7697
7698 let buffer = &display_map.buffer_snapshot;
7699 let query_matches = select_next_state
7700 .query
7701 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7702
7703 for query_match in query_matches {
7704 let query_match = query_match.unwrap(); // can only fail due to I/O
7705 let offset_range = query_match.start()..query_match.end();
7706 let display_range = offset_range.start.to_display_point(&display_map)
7707 ..offset_range.end.to_display_point(&display_map);
7708
7709 if !select_next_state.wordwise
7710 || (!movement::is_inside_word(&display_map, display_range.start)
7711 && !movement::is_inside_word(&display_map, display_range.end))
7712 {
7713 self.selections.change_with(cx, |selections| {
7714 new_selections.push(Selection {
7715 id: selections.new_selection_id(),
7716 start: offset_range.start,
7717 end: offset_range.end,
7718 reversed: false,
7719 goal: SelectionGoal::None,
7720 });
7721 });
7722 }
7723 }
7724
7725 new_selections.sort_by_key(|selection| selection.start);
7726 let mut ix = 0;
7727 while ix + 1 < new_selections.len() {
7728 let current_selection = &new_selections[ix];
7729 let next_selection = &new_selections[ix + 1];
7730 if current_selection.range().overlaps(&next_selection.range()) {
7731 if current_selection.id < next_selection.id {
7732 new_selections.remove(ix + 1);
7733 } else {
7734 new_selections.remove(ix);
7735 }
7736 } else {
7737 ix += 1;
7738 }
7739 }
7740
7741 select_next_state.done = true;
7742 self.unfold_ranges(
7743 new_selections.iter().map(|selection| selection.range()),
7744 false,
7745 false,
7746 cx,
7747 );
7748 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7749 selections.select(new_selections)
7750 });
7751
7752 Ok(())
7753 }
7754
7755 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7756 self.push_to_selection_history();
7757 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7758 self.select_next_match_internal(
7759 &display_map,
7760 action.replace_newest,
7761 Some(Autoscroll::newest()),
7762 cx,
7763 )?;
7764 Ok(())
7765 }
7766
7767 pub fn select_previous(
7768 &mut self,
7769 action: &SelectPrevious,
7770 cx: &mut ViewContext<Self>,
7771 ) -> Result<()> {
7772 self.push_to_selection_history();
7773 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7774 let buffer = &display_map.buffer_snapshot;
7775 let mut selections = self.selections.all::<usize>(cx);
7776 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7777 let query = &select_prev_state.query;
7778 if !select_prev_state.done {
7779 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7780 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7781 let mut next_selected_range = None;
7782 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7783 let bytes_before_last_selection =
7784 buffer.reversed_bytes_in_range(0..last_selection.start);
7785 let bytes_after_first_selection =
7786 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7787 let query_matches = query
7788 .stream_find_iter(bytes_before_last_selection)
7789 .map(|result| (last_selection.start, result))
7790 .chain(
7791 query
7792 .stream_find_iter(bytes_after_first_selection)
7793 .map(|result| (buffer.len(), result)),
7794 );
7795 for (end_offset, query_match) in query_matches {
7796 let query_match = query_match.unwrap(); // can only fail due to I/O
7797 let offset_range =
7798 end_offset - query_match.end()..end_offset - query_match.start();
7799 let display_range = offset_range.start.to_display_point(&display_map)
7800 ..offset_range.end.to_display_point(&display_map);
7801
7802 if !select_prev_state.wordwise
7803 || (!movement::is_inside_word(&display_map, display_range.start)
7804 && !movement::is_inside_word(&display_map, display_range.end))
7805 {
7806 next_selected_range = Some(offset_range);
7807 break;
7808 }
7809 }
7810
7811 if let Some(next_selected_range) = next_selected_range {
7812 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7813 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7814 if action.replace_newest {
7815 s.delete(s.newest_anchor().id);
7816 }
7817 s.insert_range(next_selected_range);
7818 });
7819 } else {
7820 select_prev_state.done = true;
7821 }
7822 }
7823
7824 self.select_prev_state = Some(select_prev_state);
7825 } else {
7826 let mut only_carets = true;
7827 let mut same_text_selected = true;
7828 let mut selected_text = None;
7829
7830 let mut selections_iter = selections.iter().peekable();
7831 while let Some(selection) = selections_iter.next() {
7832 if selection.start != selection.end {
7833 only_carets = false;
7834 }
7835
7836 if same_text_selected {
7837 if selected_text.is_none() {
7838 selected_text =
7839 Some(buffer.text_for_range(selection.range()).collect::<String>());
7840 }
7841
7842 if let Some(next_selection) = selections_iter.peek() {
7843 if next_selection.range().len() == selection.range().len() {
7844 let next_selected_text = buffer
7845 .text_for_range(next_selection.range())
7846 .collect::<String>();
7847 if Some(next_selected_text) != selected_text {
7848 same_text_selected = false;
7849 selected_text = None;
7850 }
7851 } else {
7852 same_text_selected = false;
7853 selected_text = None;
7854 }
7855 }
7856 }
7857 }
7858
7859 if only_carets {
7860 for selection in &mut selections {
7861 let word_range = movement::surrounding_word(
7862 &display_map,
7863 selection.start.to_display_point(&display_map),
7864 );
7865 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7866 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7867 selection.goal = SelectionGoal::None;
7868 selection.reversed = false;
7869 }
7870 if selections.len() == 1 {
7871 let selection = selections
7872 .last()
7873 .expect("ensured that there's only one selection");
7874 let query = buffer
7875 .text_for_range(selection.start..selection.end)
7876 .collect::<String>();
7877 let is_empty = query.is_empty();
7878 let select_state = SelectNextState {
7879 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7880 wordwise: true,
7881 done: is_empty,
7882 };
7883 self.select_prev_state = Some(select_state);
7884 } else {
7885 self.select_prev_state = None;
7886 }
7887
7888 self.unfold_ranges(
7889 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7890 false,
7891 true,
7892 cx,
7893 );
7894 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7895 s.select(selections);
7896 });
7897 } else if let Some(selected_text) = selected_text {
7898 self.select_prev_state = Some(SelectNextState {
7899 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7900 wordwise: false,
7901 done: false,
7902 });
7903 self.select_previous(action, cx)?;
7904 }
7905 }
7906 Ok(())
7907 }
7908
7909 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7910 let text_layout_details = &self.text_layout_details(cx);
7911 self.transact(cx, |this, cx| {
7912 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7913 let mut edits = Vec::new();
7914 let mut selection_edit_ranges = Vec::new();
7915 let mut last_toggled_row = None;
7916 let snapshot = this.buffer.read(cx).read(cx);
7917 let empty_str: Arc<str> = "".into();
7918 let mut suffixes_inserted = Vec::new();
7919
7920 fn comment_prefix_range(
7921 snapshot: &MultiBufferSnapshot,
7922 row: MultiBufferRow,
7923 comment_prefix: &str,
7924 comment_prefix_whitespace: &str,
7925 ) -> Range<Point> {
7926 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7927
7928 let mut line_bytes = snapshot
7929 .bytes_in_range(start..snapshot.max_point())
7930 .flatten()
7931 .copied();
7932
7933 // If this line currently begins with the line comment prefix, then record
7934 // the range containing the prefix.
7935 if line_bytes
7936 .by_ref()
7937 .take(comment_prefix.len())
7938 .eq(comment_prefix.bytes())
7939 {
7940 // Include any whitespace that matches the comment prefix.
7941 let matching_whitespace_len = line_bytes
7942 .zip(comment_prefix_whitespace.bytes())
7943 .take_while(|(a, b)| a == b)
7944 .count() as u32;
7945 let end = Point::new(
7946 start.row,
7947 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7948 );
7949 start..end
7950 } else {
7951 start..start
7952 }
7953 }
7954
7955 fn comment_suffix_range(
7956 snapshot: &MultiBufferSnapshot,
7957 row: MultiBufferRow,
7958 comment_suffix: &str,
7959 comment_suffix_has_leading_space: bool,
7960 ) -> Range<Point> {
7961 let end = Point::new(row.0, snapshot.line_len(row));
7962 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7963
7964 let mut line_end_bytes = snapshot
7965 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7966 .flatten()
7967 .copied();
7968
7969 let leading_space_len = if suffix_start_column > 0
7970 && line_end_bytes.next() == Some(b' ')
7971 && comment_suffix_has_leading_space
7972 {
7973 1
7974 } else {
7975 0
7976 };
7977
7978 // If this line currently begins with the line comment prefix, then record
7979 // the range containing the prefix.
7980 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7981 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7982 start..end
7983 } else {
7984 end..end
7985 }
7986 }
7987
7988 // TODO: Handle selections that cross excerpts
7989 for selection in &mut selections {
7990 let start_column = snapshot
7991 .indent_size_for_line(MultiBufferRow(selection.start.row))
7992 .len;
7993 let language = if let Some(language) =
7994 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7995 {
7996 language
7997 } else {
7998 continue;
7999 };
8000
8001 selection_edit_ranges.clear();
8002
8003 // If multiple selections contain a given row, avoid processing that
8004 // row more than once.
8005 let mut start_row = MultiBufferRow(selection.start.row);
8006 if last_toggled_row == Some(start_row) {
8007 start_row = start_row.next_row();
8008 }
8009 let end_row =
8010 if selection.end.row > selection.start.row && selection.end.column == 0 {
8011 MultiBufferRow(selection.end.row - 1)
8012 } else {
8013 MultiBufferRow(selection.end.row)
8014 };
8015 last_toggled_row = Some(end_row);
8016
8017 if start_row > end_row {
8018 continue;
8019 }
8020
8021 // If the language has line comments, toggle those.
8022 let full_comment_prefixes = language.line_comment_prefixes();
8023 if !full_comment_prefixes.is_empty() {
8024 let first_prefix = full_comment_prefixes
8025 .first()
8026 .expect("prefixes is non-empty");
8027 let prefix_trimmed_lengths = full_comment_prefixes
8028 .iter()
8029 .map(|p| p.trim_end_matches(' ').len())
8030 .collect::<SmallVec<[usize; 4]>>();
8031
8032 let mut all_selection_lines_are_comments = true;
8033
8034 for row in start_row.0..=end_row.0 {
8035 let row = MultiBufferRow(row);
8036 if start_row < end_row && snapshot.is_line_blank(row) {
8037 continue;
8038 }
8039
8040 let prefix_range = full_comment_prefixes
8041 .iter()
8042 .zip(prefix_trimmed_lengths.iter().copied())
8043 .map(|(prefix, trimmed_prefix_len)| {
8044 comment_prefix_range(
8045 snapshot.deref(),
8046 row,
8047 &prefix[..trimmed_prefix_len],
8048 &prefix[trimmed_prefix_len..],
8049 )
8050 })
8051 .max_by_key(|range| range.end.column - range.start.column)
8052 .expect("prefixes is non-empty");
8053
8054 if prefix_range.is_empty() {
8055 all_selection_lines_are_comments = false;
8056 }
8057
8058 selection_edit_ranges.push(prefix_range);
8059 }
8060
8061 if all_selection_lines_are_comments {
8062 edits.extend(
8063 selection_edit_ranges
8064 .iter()
8065 .cloned()
8066 .map(|range| (range, empty_str.clone())),
8067 );
8068 } else {
8069 let min_column = selection_edit_ranges
8070 .iter()
8071 .map(|range| range.start.column)
8072 .min()
8073 .unwrap_or(0);
8074 edits.extend(selection_edit_ranges.iter().map(|range| {
8075 let position = Point::new(range.start.row, min_column);
8076 (position..position, first_prefix.clone())
8077 }));
8078 }
8079 } else if let Some((full_comment_prefix, comment_suffix)) =
8080 language.block_comment_delimiters()
8081 {
8082 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8083 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8084 let prefix_range = comment_prefix_range(
8085 snapshot.deref(),
8086 start_row,
8087 comment_prefix,
8088 comment_prefix_whitespace,
8089 );
8090 let suffix_range = comment_suffix_range(
8091 snapshot.deref(),
8092 end_row,
8093 comment_suffix.trim_start_matches(' '),
8094 comment_suffix.starts_with(' '),
8095 );
8096
8097 if prefix_range.is_empty() || suffix_range.is_empty() {
8098 edits.push((
8099 prefix_range.start..prefix_range.start,
8100 full_comment_prefix.clone(),
8101 ));
8102 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8103 suffixes_inserted.push((end_row, comment_suffix.len()));
8104 } else {
8105 edits.push((prefix_range, empty_str.clone()));
8106 edits.push((suffix_range, empty_str.clone()));
8107 }
8108 } else {
8109 continue;
8110 }
8111 }
8112
8113 drop(snapshot);
8114 this.buffer.update(cx, |buffer, cx| {
8115 buffer.edit(edits, None, cx);
8116 });
8117
8118 // Adjust selections so that they end before any comment suffixes that
8119 // were inserted.
8120 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8121 let mut selections = this.selections.all::<Point>(cx);
8122 let snapshot = this.buffer.read(cx).read(cx);
8123 for selection in &mut selections {
8124 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8125 match row.cmp(&MultiBufferRow(selection.end.row)) {
8126 Ordering::Less => {
8127 suffixes_inserted.next();
8128 continue;
8129 }
8130 Ordering::Greater => break,
8131 Ordering::Equal => {
8132 if selection.end.column == snapshot.line_len(row) {
8133 if selection.is_empty() {
8134 selection.start.column -= suffix_len as u32;
8135 }
8136 selection.end.column -= suffix_len as u32;
8137 }
8138 break;
8139 }
8140 }
8141 }
8142 }
8143
8144 drop(snapshot);
8145 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8146
8147 let selections = this.selections.all::<Point>(cx);
8148 let selections_on_single_row = selections.windows(2).all(|selections| {
8149 selections[0].start.row == selections[1].start.row
8150 && selections[0].end.row == selections[1].end.row
8151 && selections[0].start.row == selections[0].end.row
8152 });
8153 let selections_selecting = selections
8154 .iter()
8155 .any(|selection| selection.start != selection.end);
8156 let advance_downwards = action.advance_downwards
8157 && selections_on_single_row
8158 && !selections_selecting
8159 && this.mode != EditorMode::SingleLine;
8160
8161 if advance_downwards {
8162 let snapshot = this.buffer.read(cx).snapshot(cx);
8163
8164 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8165 s.move_cursors_with(|display_snapshot, display_point, _| {
8166 let mut point = display_point.to_point(display_snapshot);
8167 point.row += 1;
8168 point = snapshot.clip_point(point, Bias::Left);
8169 let display_point = point.to_display_point(display_snapshot);
8170 let goal = SelectionGoal::HorizontalPosition(
8171 display_snapshot
8172 .x_for_display_point(display_point, &text_layout_details)
8173 .into(),
8174 );
8175 (display_point, goal)
8176 })
8177 });
8178 }
8179 });
8180 }
8181
8182 pub fn select_larger_syntax_node(
8183 &mut self,
8184 _: &SelectLargerSyntaxNode,
8185 cx: &mut ViewContext<Self>,
8186 ) {
8187 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8188 let buffer = self.buffer.read(cx).snapshot(cx);
8189 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8190
8191 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8192 let mut selected_larger_node = false;
8193 let new_selections = old_selections
8194 .iter()
8195 .map(|selection| {
8196 let old_range = selection.start..selection.end;
8197 let mut new_range = old_range.clone();
8198 while let Some(containing_range) =
8199 buffer.range_for_syntax_ancestor(new_range.clone())
8200 {
8201 new_range = containing_range;
8202 if !display_map.intersects_fold(new_range.start)
8203 && !display_map.intersects_fold(new_range.end)
8204 {
8205 break;
8206 }
8207 }
8208
8209 selected_larger_node |= new_range != old_range;
8210 Selection {
8211 id: selection.id,
8212 start: new_range.start,
8213 end: new_range.end,
8214 goal: SelectionGoal::None,
8215 reversed: selection.reversed,
8216 }
8217 })
8218 .collect::<Vec<_>>();
8219
8220 if selected_larger_node {
8221 stack.push(old_selections);
8222 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8223 s.select(new_selections);
8224 });
8225 }
8226 self.select_larger_syntax_node_stack = stack;
8227 }
8228
8229 pub fn select_smaller_syntax_node(
8230 &mut self,
8231 _: &SelectSmallerSyntaxNode,
8232 cx: &mut ViewContext<Self>,
8233 ) {
8234 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8235 if let Some(selections) = stack.pop() {
8236 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8237 s.select(selections.to_vec());
8238 });
8239 }
8240 self.select_larger_syntax_node_stack = stack;
8241 }
8242
8243 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8244 let project = self.project.clone();
8245 cx.spawn(|this, mut cx| async move {
8246 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8247 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8248 }) else {
8249 return;
8250 };
8251
8252 let Some(project) = project else {
8253 return;
8254 };
8255
8256 let hide_runnables = project
8257 .update(&mut cx, |project, cx| {
8258 // Do not display any test indicators in non-dev server remote projects.
8259 project.is_remote() && project.ssh_connection_string(cx).is_none()
8260 })
8261 .unwrap_or(true);
8262 if hide_runnables {
8263 return;
8264 }
8265 let new_rows =
8266 cx.background_executor()
8267 .spawn({
8268 let snapshot = display_snapshot.clone();
8269 async move {
8270 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8271 }
8272 })
8273 .await;
8274 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8275
8276 this.update(&mut cx, |this, _| {
8277 this.clear_tasks();
8278 for (key, value) in rows {
8279 this.insert_tasks(key, value);
8280 }
8281 })
8282 .ok();
8283 })
8284 }
8285 fn fetch_runnable_ranges(
8286 snapshot: &DisplaySnapshot,
8287 range: Range<Anchor>,
8288 ) -> Vec<language::RunnableRange> {
8289 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8290 }
8291
8292 fn runnable_rows(
8293 project: Model<Project>,
8294 snapshot: DisplaySnapshot,
8295 runnable_ranges: Vec<RunnableRange>,
8296 mut cx: AsyncWindowContext,
8297 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8298 runnable_ranges
8299 .into_iter()
8300 .filter_map(|mut runnable| {
8301 let tasks = cx
8302 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8303 .ok()?;
8304 if tasks.is_empty() {
8305 return None;
8306 }
8307
8308 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8309
8310 let row = snapshot
8311 .buffer_snapshot
8312 .buffer_line_for_row(MultiBufferRow(point.row))?
8313 .1
8314 .start
8315 .row;
8316
8317 let context_range =
8318 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8319 Some((
8320 (runnable.buffer_id, row),
8321 RunnableTasks {
8322 templates: tasks,
8323 offset: MultiBufferOffset(runnable.run_range.start),
8324 context_range,
8325 column: point.column,
8326 extra_variables: runnable.extra_captures,
8327 },
8328 ))
8329 })
8330 .collect()
8331 }
8332
8333 fn templates_with_tags(
8334 project: &Model<Project>,
8335 runnable: &mut Runnable,
8336 cx: &WindowContext<'_>,
8337 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8338 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
8339 let worktree_id = project
8340 .buffer_for_id(runnable.buffer)
8341 .and_then(|buffer| buffer.read(cx).file())
8342 .map(|file| WorktreeId::from_usize(file.worktree_id()));
8343
8344 (project.task_inventory().clone(), worktree_id)
8345 });
8346
8347 let inventory = inventory.read(cx);
8348 let tags = mem::take(&mut runnable.tags);
8349 let mut tags: Vec<_> = tags
8350 .into_iter()
8351 .flat_map(|tag| {
8352 let tag = tag.0.clone();
8353 inventory
8354 .list_tasks(Some(runnable.language.clone()), worktree_id)
8355 .into_iter()
8356 .filter(move |(_, template)| {
8357 template.tags.iter().any(|source_tag| source_tag == &tag)
8358 })
8359 })
8360 .sorted_by_key(|(kind, _)| kind.to_owned())
8361 .collect();
8362 if let Some((leading_tag_source, _)) = tags.first() {
8363 // Strongest source wins; if we have worktree tag binding, prefer that to
8364 // global and language bindings;
8365 // if we have a global binding, prefer that to language binding.
8366 let first_mismatch = tags
8367 .iter()
8368 .position(|(tag_source, _)| tag_source != leading_tag_source);
8369 if let Some(index) = first_mismatch {
8370 tags.truncate(index);
8371 }
8372 }
8373
8374 tags
8375 }
8376
8377 pub fn move_to_enclosing_bracket(
8378 &mut self,
8379 _: &MoveToEnclosingBracket,
8380 cx: &mut ViewContext<Self>,
8381 ) {
8382 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8383 s.move_offsets_with(|snapshot, selection| {
8384 let Some(enclosing_bracket_ranges) =
8385 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8386 else {
8387 return;
8388 };
8389
8390 let mut best_length = usize::MAX;
8391 let mut best_inside = false;
8392 let mut best_in_bracket_range = false;
8393 let mut best_destination = None;
8394 for (open, close) in enclosing_bracket_ranges {
8395 let close = close.to_inclusive();
8396 let length = close.end() - open.start;
8397 let inside = selection.start >= open.end && selection.end <= *close.start();
8398 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8399 || close.contains(&selection.head());
8400
8401 // If best is next to a bracket and current isn't, skip
8402 if !in_bracket_range && best_in_bracket_range {
8403 continue;
8404 }
8405
8406 // Prefer smaller lengths unless best is inside and current isn't
8407 if length > best_length && (best_inside || !inside) {
8408 continue;
8409 }
8410
8411 best_length = length;
8412 best_inside = inside;
8413 best_in_bracket_range = in_bracket_range;
8414 best_destination = Some(
8415 if close.contains(&selection.start) && close.contains(&selection.end) {
8416 if inside {
8417 open.end
8418 } else {
8419 open.start
8420 }
8421 } else {
8422 if inside {
8423 *close.start()
8424 } else {
8425 *close.end()
8426 }
8427 },
8428 );
8429 }
8430
8431 if let Some(destination) = best_destination {
8432 selection.collapse_to(destination, SelectionGoal::None);
8433 }
8434 })
8435 });
8436 }
8437
8438 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8439 self.end_selection(cx);
8440 self.selection_history.mode = SelectionHistoryMode::Undoing;
8441 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8442 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8443 self.select_next_state = entry.select_next_state;
8444 self.select_prev_state = entry.select_prev_state;
8445 self.add_selections_state = entry.add_selections_state;
8446 self.request_autoscroll(Autoscroll::newest(), cx);
8447 }
8448 self.selection_history.mode = SelectionHistoryMode::Normal;
8449 }
8450
8451 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8452 self.end_selection(cx);
8453 self.selection_history.mode = SelectionHistoryMode::Redoing;
8454 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8455 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8456 self.select_next_state = entry.select_next_state;
8457 self.select_prev_state = entry.select_prev_state;
8458 self.add_selections_state = entry.add_selections_state;
8459 self.request_autoscroll(Autoscroll::newest(), cx);
8460 }
8461 self.selection_history.mode = SelectionHistoryMode::Normal;
8462 }
8463
8464 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8465 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8466 }
8467
8468 pub fn expand_excerpts_down(
8469 &mut self,
8470 action: &ExpandExcerptsDown,
8471 cx: &mut ViewContext<Self>,
8472 ) {
8473 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8474 }
8475
8476 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8477 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8478 }
8479
8480 pub fn expand_excerpts_for_direction(
8481 &mut self,
8482 lines: u32,
8483 direction: ExpandExcerptDirection,
8484 cx: &mut ViewContext<Self>,
8485 ) {
8486 let selections = self.selections.disjoint_anchors();
8487
8488 let lines = if lines == 0 {
8489 EditorSettings::get_global(cx).expand_excerpt_lines
8490 } else {
8491 lines
8492 };
8493
8494 self.buffer.update(cx, |buffer, cx| {
8495 buffer.expand_excerpts(
8496 selections
8497 .into_iter()
8498 .map(|selection| selection.head().excerpt_id)
8499 .dedup(),
8500 lines,
8501 direction,
8502 cx,
8503 )
8504 })
8505 }
8506
8507 pub fn expand_excerpt(
8508 &mut self,
8509 excerpt: ExcerptId,
8510 direction: ExpandExcerptDirection,
8511 cx: &mut ViewContext<Self>,
8512 ) {
8513 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8514 self.buffer.update(cx, |buffer, cx| {
8515 buffer.expand_excerpts([excerpt], lines, direction, cx)
8516 })
8517 }
8518
8519 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8520 self.go_to_diagnostic_impl(Direction::Next, cx)
8521 }
8522
8523 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8524 self.go_to_diagnostic_impl(Direction::Prev, cx)
8525 }
8526
8527 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8528 let buffer = self.buffer.read(cx).snapshot(cx);
8529 let selection = self.selections.newest::<usize>(cx);
8530
8531 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8532 if direction == Direction::Next {
8533 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8534 let (group_id, jump_to) = popover.activation_info();
8535 if self.activate_diagnostics(group_id, cx) {
8536 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8537 let mut new_selection = s.newest_anchor().clone();
8538 new_selection.collapse_to(jump_to, SelectionGoal::None);
8539 s.select_anchors(vec![new_selection.clone()]);
8540 });
8541 }
8542 return;
8543 }
8544 }
8545
8546 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8547 active_diagnostics
8548 .primary_range
8549 .to_offset(&buffer)
8550 .to_inclusive()
8551 });
8552 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8553 if active_primary_range.contains(&selection.head()) {
8554 *active_primary_range.start()
8555 } else {
8556 selection.head()
8557 }
8558 } else {
8559 selection.head()
8560 };
8561 let snapshot = self.snapshot(cx);
8562 loop {
8563 let diagnostics = if direction == Direction::Prev {
8564 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8565 } else {
8566 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8567 }
8568 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8569 let group = diagnostics
8570 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8571 // be sorted in a stable way
8572 // skip until we are at current active diagnostic, if it exists
8573 .skip_while(|entry| {
8574 (match direction {
8575 Direction::Prev => entry.range.start >= search_start,
8576 Direction::Next => entry.range.start <= search_start,
8577 }) && self
8578 .active_diagnostics
8579 .as_ref()
8580 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8581 })
8582 .find_map(|entry| {
8583 if entry.diagnostic.is_primary
8584 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8585 && !entry.range.is_empty()
8586 // if we match with the active diagnostic, skip it
8587 && Some(entry.diagnostic.group_id)
8588 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8589 {
8590 Some((entry.range, entry.diagnostic.group_id))
8591 } else {
8592 None
8593 }
8594 });
8595
8596 if let Some((primary_range, group_id)) = group {
8597 if self.activate_diagnostics(group_id, cx) {
8598 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8599 s.select(vec![Selection {
8600 id: selection.id,
8601 start: primary_range.start,
8602 end: primary_range.start,
8603 reversed: false,
8604 goal: SelectionGoal::None,
8605 }]);
8606 });
8607 }
8608 break;
8609 } else {
8610 // Cycle around to the start of the buffer, potentially moving back to the start of
8611 // the currently active diagnostic.
8612 active_primary_range.take();
8613 if direction == Direction::Prev {
8614 if search_start == buffer.len() {
8615 break;
8616 } else {
8617 search_start = buffer.len();
8618 }
8619 } else if search_start == 0 {
8620 break;
8621 } else {
8622 search_start = 0;
8623 }
8624 }
8625 }
8626 }
8627
8628 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8629 let snapshot = self
8630 .display_map
8631 .update(cx, |display_map, cx| display_map.snapshot(cx));
8632 let selection = self.selections.newest::<Point>(cx);
8633
8634 if !self.seek_in_direction(
8635 &snapshot,
8636 selection.head(),
8637 false,
8638 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8639 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8640 ),
8641 cx,
8642 ) {
8643 let wrapped_point = Point::zero();
8644 self.seek_in_direction(
8645 &snapshot,
8646 wrapped_point,
8647 true,
8648 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8649 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8650 ),
8651 cx,
8652 );
8653 }
8654 }
8655
8656 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8657 let snapshot = self
8658 .display_map
8659 .update(cx, |display_map, cx| display_map.snapshot(cx));
8660 let selection = self.selections.newest::<Point>(cx);
8661
8662 if !self.seek_in_direction(
8663 &snapshot,
8664 selection.head(),
8665 false,
8666 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8667 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8668 ),
8669 cx,
8670 ) {
8671 let wrapped_point = snapshot.buffer_snapshot.max_point();
8672 self.seek_in_direction(
8673 &snapshot,
8674 wrapped_point,
8675 true,
8676 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8677 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8678 ),
8679 cx,
8680 );
8681 }
8682 }
8683
8684 fn seek_in_direction(
8685 &mut self,
8686 snapshot: &DisplaySnapshot,
8687 initial_point: Point,
8688 is_wrapped: bool,
8689 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8690 cx: &mut ViewContext<Editor>,
8691 ) -> bool {
8692 let display_point = initial_point.to_display_point(snapshot);
8693 let mut hunks = hunks
8694 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8695 .filter(|hunk| {
8696 if is_wrapped {
8697 true
8698 } else {
8699 !hunk.contains_display_row(display_point.row())
8700 }
8701 })
8702 .dedup();
8703
8704 if let Some(hunk) = hunks.next() {
8705 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8706 let row = hunk.start_display_row();
8707 let point = DisplayPoint::new(row, 0);
8708 s.select_display_ranges([point..point]);
8709 });
8710
8711 true
8712 } else {
8713 false
8714 }
8715 }
8716
8717 pub fn go_to_definition(
8718 &mut self,
8719 _: &GoToDefinition,
8720 cx: &mut ViewContext<Self>,
8721 ) -> Task<Result<bool>> {
8722 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8723 }
8724
8725 pub fn go_to_implementation(
8726 &mut self,
8727 _: &GoToImplementation,
8728 cx: &mut ViewContext<Self>,
8729 ) -> Task<Result<bool>> {
8730 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8731 }
8732
8733 pub fn go_to_implementation_split(
8734 &mut self,
8735 _: &GoToImplementationSplit,
8736 cx: &mut ViewContext<Self>,
8737 ) -> Task<Result<bool>> {
8738 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8739 }
8740
8741 pub fn go_to_type_definition(
8742 &mut self,
8743 _: &GoToTypeDefinition,
8744 cx: &mut ViewContext<Self>,
8745 ) -> Task<Result<bool>> {
8746 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8747 }
8748
8749 pub fn go_to_definition_split(
8750 &mut self,
8751 _: &GoToDefinitionSplit,
8752 cx: &mut ViewContext<Self>,
8753 ) -> Task<Result<bool>> {
8754 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8755 }
8756
8757 pub fn go_to_type_definition_split(
8758 &mut self,
8759 _: &GoToTypeDefinitionSplit,
8760 cx: &mut ViewContext<Self>,
8761 ) -> Task<Result<bool>> {
8762 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8763 }
8764
8765 fn go_to_definition_of_kind(
8766 &mut self,
8767 kind: GotoDefinitionKind,
8768 split: bool,
8769 cx: &mut ViewContext<Self>,
8770 ) -> Task<Result<bool>> {
8771 let Some(workspace) = self.workspace() else {
8772 return Task::ready(Ok(false));
8773 };
8774 let buffer = self.buffer.read(cx);
8775 let head = self.selections.newest::<usize>(cx).head();
8776 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8777 text_anchor
8778 } else {
8779 return Task::ready(Ok(false));
8780 };
8781
8782 let project = workspace.read(cx).project().clone();
8783 let definitions = project.update(cx, |project, cx| match kind {
8784 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8785 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8786 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8787 });
8788
8789 cx.spawn(|editor, mut cx| async move {
8790 let definitions = definitions.await?;
8791 let navigated = editor
8792 .update(&mut cx, |editor, cx| {
8793 editor.navigate_to_hover_links(
8794 Some(kind),
8795 definitions
8796 .into_iter()
8797 .filter(|location| {
8798 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8799 })
8800 .map(HoverLink::Text)
8801 .collect::<Vec<_>>(),
8802 split,
8803 cx,
8804 )
8805 })?
8806 .await?;
8807 anyhow::Ok(navigated)
8808 })
8809 }
8810
8811 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8812 let position = self.selections.newest_anchor().head();
8813 let Some((buffer, buffer_position)) =
8814 self.buffer.read(cx).text_anchor_for_position(position, cx)
8815 else {
8816 return;
8817 };
8818
8819 cx.spawn(|editor, mut cx| async move {
8820 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8821 editor.update(&mut cx, |_, cx| {
8822 cx.open_url(&url);
8823 })
8824 } else {
8825 Ok(())
8826 }
8827 })
8828 .detach();
8829 }
8830
8831 pub(crate) fn navigate_to_hover_links(
8832 &mut self,
8833 kind: Option<GotoDefinitionKind>,
8834 mut definitions: Vec<HoverLink>,
8835 split: bool,
8836 cx: &mut ViewContext<Editor>,
8837 ) -> Task<Result<bool>> {
8838 // If there is one definition, just open it directly
8839 if definitions.len() == 1 {
8840 let definition = definitions.pop().unwrap();
8841 let target_task = match definition {
8842 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8843 HoverLink::InlayHint(lsp_location, server_id) => {
8844 self.compute_target_location(lsp_location, server_id, cx)
8845 }
8846 HoverLink::Url(url) => {
8847 cx.open_url(&url);
8848 Task::ready(Ok(None))
8849 }
8850 };
8851 cx.spawn(|editor, mut cx| async move {
8852 let target = target_task.await.context("target resolution task")?;
8853 if let Some(target) = target {
8854 editor.update(&mut cx, |editor, cx| {
8855 let Some(workspace) = editor.workspace() else {
8856 return false;
8857 };
8858 let pane = workspace.read(cx).active_pane().clone();
8859
8860 let range = target.range.to_offset(target.buffer.read(cx));
8861 let range = editor.range_for_match(&range);
8862
8863 /// If select range has more than one line, we
8864 /// just point the cursor to range.start.
8865 fn check_multiline_range(
8866 buffer: &Buffer,
8867 range: Range<usize>,
8868 ) -> Range<usize> {
8869 if buffer.offset_to_point(range.start).row
8870 == buffer.offset_to_point(range.end).row
8871 {
8872 range
8873 } else {
8874 range.start..range.start
8875 }
8876 }
8877
8878 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8879 let buffer = target.buffer.read(cx);
8880 let range = check_multiline_range(buffer, range);
8881 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8882 s.select_ranges([range]);
8883 });
8884 } else {
8885 cx.window_context().defer(move |cx| {
8886 let target_editor: View<Self> =
8887 workspace.update(cx, |workspace, cx| {
8888 let pane = if split {
8889 workspace.adjacent_pane(cx)
8890 } else {
8891 workspace.active_pane().clone()
8892 };
8893
8894 workspace.open_project_item(pane, target.buffer.clone(), cx)
8895 });
8896 target_editor.update(cx, |target_editor, cx| {
8897 // When selecting a definition in a different buffer, disable the nav history
8898 // to avoid creating a history entry at the previous cursor location.
8899 pane.update(cx, |pane, _| pane.disable_history());
8900 let buffer = target.buffer.read(cx);
8901 let range = check_multiline_range(buffer, range);
8902 target_editor.change_selections(
8903 Some(Autoscroll::focused()),
8904 cx,
8905 |s| {
8906 s.select_ranges([range]);
8907 },
8908 );
8909 pane.update(cx, |pane, _| pane.enable_history());
8910 });
8911 });
8912 }
8913 true
8914 })
8915 } else {
8916 Ok(false)
8917 }
8918 })
8919 } else if !definitions.is_empty() {
8920 let replica_id = self.replica_id(cx);
8921 cx.spawn(|editor, mut cx| async move {
8922 let (title, location_tasks, workspace) = editor
8923 .update(&mut cx, |editor, cx| {
8924 let tab_kind = match kind {
8925 Some(GotoDefinitionKind::Implementation) => "Implementations",
8926 _ => "Definitions",
8927 };
8928 let title = definitions
8929 .iter()
8930 .find_map(|definition| match definition {
8931 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8932 let buffer = origin.buffer.read(cx);
8933 format!(
8934 "{} for {}",
8935 tab_kind,
8936 buffer
8937 .text_for_range(origin.range.clone())
8938 .collect::<String>()
8939 )
8940 }),
8941 HoverLink::InlayHint(_, _) => None,
8942 HoverLink::Url(_) => None,
8943 })
8944 .unwrap_or(tab_kind.to_string());
8945 let location_tasks = definitions
8946 .into_iter()
8947 .map(|definition| match definition {
8948 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8949 HoverLink::InlayHint(lsp_location, server_id) => {
8950 editor.compute_target_location(lsp_location, server_id, cx)
8951 }
8952 HoverLink::Url(_) => Task::ready(Ok(None)),
8953 })
8954 .collect::<Vec<_>>();
8955 (title, location_tasks, editor.workspace().clone())
8956 })
8957 .context("location tasks preparation")?;
8958
8959 let locations = futures::future::join_all(location_tasks)
8960 .await
8961 .into_iter()
8962 .filter_map(|location| location.transpose())
8963 .collect::<Result<_>>()
8964 .context("location tasks")?;
8965
8966 let Some(workspace) = workspace else {
8967 return Ok(false);
8968 };
8969 let opened = workspace
8970 .update(&mut cx, |workspace, cx| {
8971 Self::open_locations_in_multibuffer(
8972 workspace, locations, replica_id, title, split, cx,
8973 )
8974 })
8975 .ok();
8976
8977 anyhow::Ok(opened.is_some())
8978 })
8979 } else {
8980 Task::ready(Ok(false))
8981 }
8982 }
8983
8984 fn compute_target_location(
8985 &self,
8986 lsp_location: lsp::Location,
8987 server_id: LanguageServerId,
8988 cx: &mut ViewContext<Editor>,
8989 ) -> Task<anyhow::Result<Option<Location>>> {
8990 let Some(project) = self.project.clone() else {
8991 return Task::Ready(Some(Ok(None)));
8992 };
8993
8994 cx.spawn(move |editor, mut cx| async move {
8995 let location_task = editor.update(&mut cx, |editor, cx| {
8996 project.update(cx, |project, cx| {
8997 let language_server_name =
8998 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8999 project
9000 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9001 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9002 });
9003 language_server_name.map(|language_server_name| {
9004 project.open_local_buffer_via_lsp(
9005 lsp_location.uri.clone(),
9006 server_id,
9007 language_server_name,
9008 cx,
9009 )
9010 })
9011 })
9012 })?;
9013 let location = match location_task {
9014 Some(task) => Some({
9015 let target_buffer_handle = task.await.context("open local buffer")?;
9016 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9017 let target_start = target_buffer
9018 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9019 let target_end = target_buffer
9020 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9021 target_buffer.anchor_after(target_start)
9022 ..target_buffer.anchor_before(target_end)
9023 })?;
9024 Location {
9025 buffer: target_buffer_handle,
9026 range,
9027 }
9028 }),
9029 None => None,
9030 };
9031 Ok(location)
9032 })
9033 }
9034
9035 pub fn find_all_references(
9036 &mut self,
9037 _: &FindAllReferences,
9038 cx: &mut ViewContext<Self>,
9039 ) -> Option<Task<Result<()>>> {
9040 let multi_buffer = self.buffer.read(cx);
9041 let selection = self.selections.newest::<usize>(cx);
9042 let head = selection.head();
9043
9044 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9045 let head_anchor = multi_buffer_snapshot.anchor_at(
9046 head,
9047 if head < selection.tail() {
9048 Bias::Right
9049 } else {
9050 Bias::Left
9051 },
9052 );
9053
9054 match self
9055 .find_all_references_task_sources
9056 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9057 {
9058 Ok(_) => {
9059 log::info!(
9060 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9061 );
9062 return None;
9063 }
9064 Err(i) => {
9065 self.find_all_references_task_sources.insert(i, head_anchor);
9066 }
9067 }
9068
9069 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9070 let replica_id = self.replica_id(cx);
9071 let workspace = self.workspace()?;
9072 let project = workspace.read(cx).project().clone();
9073 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9074 Some(cx.spawn(|editor, mut cx| async move {
9075 let _cleanup = defer({
9076 let mut cx = cx.clone();
9077 move || {
9078 let _ = editor.update(&mut cx, |editor, _| {
9079 if let Ok(i) =
9080 editor
9081 .find_all_references_task_sources
9082 .binary_search_by(|anchor| {
9083 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9084 })
9085 {
9086 editor.find_all_references_task_sources.remove(i);
9087 }
9088 });
9089 }
9090 });
9091
9092 let locations = references.await?;
9093 if locations.is_empty() {
9094 return anyhow::Ok(());
9095 }
9096
9097 workspace.update(&mut cx, |workspace, cx| {
9098 let title = locations
9099 .first()
9100 .as_ref()
9101 .map(|location| {
9102 let buffer = location.buffer.read(cx);
9103 format!(
9104 "References to `{}`",
9105 buffer
9106 .text_for_range(location.range.clone())
9107 .collect::<String>()
9108 )
9109 })
9110 .unwrap();
9111 Self::open_locations_in_multibuffer(
9112 workspace, locations, replica_id, title, false, cx,
9113 );
9114 })
9115 }))
9116 }
9117
9118 /// Opens a multibuffer with the given project locations in it
9119 pub fn open_locations_in_multibuffer(
9120 workspace: &mut Workspace,
9121 mut locations: Vec<Location>,
9122 replica_id: ReplicaId,
9123 title: String,
9124 split: bool,
9125 cx: &mut ViewContext<Workspace>,
9126 ) {
9127 // If there are multiple definitions, open them in a multibuffer
9128 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9129 let mut locations = locations.into_iter().peekable();
9130 let mut ranges_to_highlight = Vec::new();
9131 let capability = workspace.project().read(cx).capability();
9132
9133 let excerpt_buffer = cx.new_model(|cx| {
9134 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9135 while let Some(location) = locations.next() {
9136 let buffer = location.buffer.read(cx);
9137 let mut ranges_for_buffer = Vec::new();
9138 let range = location.range.to_offset(buffer);
9139 ranges_for_buffer.push(range.clone());
9140
9141 while let Some(next_location) = locations.peek() {
9142 if next_location.buffer == location.buffer {
9143 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9144 locations.next();
9145 } else {
9146 break;
9147 }
9148 }
9149
9150 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9151 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9152 location.buffer.clone(),
9153 ranges_for_buffer,
9154 DEFAULT_MULTIBUFFER_CONTEXT,
9155 cx,
9156 ))
9157 }
9158
9159 multibuffer.with_title(title)
9160 });
9161
9162 let editor = cx.new_view(|cx| {
9163 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9164 });
9165 editor.update(cx, |editor, cx| {
9166 if let Some(first_range) = ranges_to_highlight.first() {
9167 editor.change_selections(None, cx, |selections| {
9168 selections.clear_disjoint();
9169 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9170 });
9171 }
9172 editor.highlight_background::<Self>(
9173 &ranges_to_highlight,
9174 |theme| theme.editor_highlighted_line_background,
9175 cx,
9176 );
9177 });
9178
9179 let item = Box::new(editor);
9180 let item_id = item.item_id();
9181
9182 if split {
9183 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9184 } else {
9185 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9186 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9187 pane.close_current_preview_item(cx)
9188 } else {
9189 None
9190 }
9191 });
9192 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
9193 }
9194 workspace.active_pane().update(cx, |pane, cx| {
9195 pane.set_preview_item_id(Some(item_id), cx);
9196 });
9197 }
9198
9199 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9200 use language::ToOffset as _;
9201
9202 let project = self.project.clone()?;
9203 let selection = self.selections.newest_anchor().clone();
9204 let (cursor_buffer, cursor_buffer_position) = self
9205 .buffer
9206 .read(cx)
9207 .text_anchor_for_position(selection.head(), cx)?;
9208 let (tail_buffer, cursor_buffer_position_end) = self
9209 .buffer
9210 .read(cx)
9211 .text_anchor_for_position(selection.tail(), cx)?;
9212 if tail_buffer != cursor_buffer {
9213 return None;
9214 }
9215
9216 let snapshot = cursor_buffer.read(cx).snapshot();
9217 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9218 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9219 let prepare_rename = project.update(cx, |project, cx| {
9220 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9221 });
9222 drop(snapshot);
9223
9224 Some(cx.spawn(|this, mut cx| async move {
9225 let rename_range = if let Some(range) = prepare_rename.await? {
9226 Some(range)
9227 } else {
9228 this.update(&mut cx, |this, cx| {
9229 let buffer = this.buffer.read(cx).snapshot(cx);
9230 let mut buffer_highlights = this
9231 .document_highlights_for_position(selection.head(), &buffer)
9232 .filter(|highlight| {
9233 highlight.start.excerpt_id == selection.head().excerpt_id
9234 && highlight.end.excerpt_id == selection.head().excerpt_id
9235 });
9236 buffer_highlights
9237 .next()
9238 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9239 })?
9240 };
9241 if let Some(rename_range) = rename_range {
9242 this.update(&mut cx, |this, cx| {
9243 let snapshot = cursor_buffer.read(cx).snapshot();
9244 let rename_buffer_range = rename_range.to_offset(&snapshot);
9245 let cursor_offset_in_rename_range =
9246 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9247 let cursor_offset_in_rename_range_end =
9248 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9249
9250 this.take_rename(false, cx);
9251 let buffer = this.buffer.read(cx).read(cx);
9252 let cursor_offset = selection.head().to_offset(&buffer);
9253 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9254 let rename_end = rename_start + rename_buffer_range.len();
9255 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9256 let mut old_highlight_id = None;
9257 let old_name: Arc<str> = buffer
9258 .chunks(rename_start..rename_end, true)
9259 .map(|chunk| {
9260 if old_highlight_id.is_none() {
9261 old_highlight_id = chunk.syntax_highlight_id;
9262 }
9263 chunk.text
9264 })
9265 .collect::<String>()
9266 .into();
9267
9268 drop(buffer);
9269
9270 // Position the selection in the rename editor so that it matches the current selection.
9271 this.show_local_selections = false;
9272 let rename_editor = cx.new_view(|cx| {
9273 let mut editor = Editor::single_line(cx);
9274 editor.buffer.update(cx, |buffer, cx| {
9275 buffer.edit([(0..0, old_name.clone())], None, cx)
9276 });
9277 let rename_selection_range = match cursor_offset_in_rename_range
9278 .cmp(&cursor_offset_in_rename_range_end)
9279 {
9280 Ordering::Equal => {
9281 editor.select_all(&SelectAll, cx);
9282 return editor;
9283 }
9284 Ordering::Less => {
9285 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9286 }
9287 Ordering::Greater => {
9288 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9289 }
9290 };
9291 if rename_selection_range.end > old_name.len() {
9292 editor.select_all(&SelectAll, cx);
9293 } else {
9294 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9295 s.select_ranges([rename_selection_range]);
9296 });
9297 }
9298 editor
9299 });
9300
9301 let write_highlights =
9302 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9303 let read_highlights =
9304 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9305 let ranges = write_highlights
9306 .iter()
9307 .flat_map(|(_, ranges)| ranges.iter())
9308 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9309 .cloned()
9310 .collect();
9311
9312 this.highlight_text::<Rename>(
9313 ranges,
9314 HighlightStyle {
9315 fade_out: Some(0.6),
9316 ..Default::default()
9317 },
9318 cx,
9319 );
9320 let rename_focus_handle = rename_editor.focus_handle(cx);
9321 cx.focus(&rename_focus_handle);
9322 let block_id = this.insert_blocks(
9323 [BlockProperties {
9324 style: BlockStyle::Flex,
9325 position: range.start,
9326 height: 1,
9327 render: Box::new({
9328 let rename_editor = rename_editor.clone();
9329 move |cx: &mut BlockContext| {
9330 let mut text_style = cx.editor_style.text.clone();
9331 if let Some(highlight_style) = old_highlight_id
9332 .and_then(|h| h.style(&cx.editor_style.syntax))
9333 {
9334 text_style = text_style.highlight(highlight_style);
9335 }
9336 div()
9337 .pl(cx.anchor_x)
9338 .child(EditorElement::new(
9339 &rename_editor,
9340 EditorStyle {
9341 background: cx.theme().system().transparent,
9342 local_player: cx.editor_style.local_player,
9343 text: text_style,
9344 scrollbar_width: cx.editor_style.scrollbar_width,
9345 syntax: cx.editor_style.syntax.clone(),
9346 status: cx.editor_style.status.clone(),
9347 inlay_hints_style: HighlightStyle {
9348 color: Some(cx.theme().status().hint),
9349 font_weight: Some(FontWeight::BOLD),
9350 ..HighlightStyle::default()
9351 },
9352 suggestions_style: HighlightStyle {
9353 color: Some(cx.theme().status().predictive),
9354 ..HighlightStyle::default()
9355 },
9356 },
9357 ))
9358 .into_any_element()
9359 }
9360 }),
9361 disposition: BlockDisposition::Below,
9362 }],
9363 Some(Autoscroll::fit()),
9364 cx,
9365 )[0];
9366 this.pending_rename = Some(RenameState {
9367 range,
9368 old_name,
9369 editor: rename_editor,
9370 block_id,
9371 });
9372 })?;
9373 }
9374
9375 Ok(())
9376 }))
9377 }
9378
9379 pub fn confirm_rename(
9380 &mut self,
9381 _: &ConfirmRename,
9382 cx: &mut ViewContext<Self>,
9383 ) -> Option<Task<Result<()>>> {
9384 let rename = self.take_rename(false, cx)?;
9385 let workspace = self.workspace()?;
9386 let (start_buffer, start) = self
9387 .buffer
9388 .read(cx)
9389 .text_anchor_for_position(rename.range.start, cx)?;
9390 let (end_buffer, end) = self
9391 .buffer
9392 .read(cx)
9393 .text_anchor_for_position(rename.range.end, cx)?;
9394 if start_buffer != end_buffer {
9395 return None;
9396 }
9397
9398 let buffer = start_buffer;
9399 let range = start..end;
9400 let old_name = rename.old_name;
9401 let new_name = rename.editor.read(cx).text(cx);
9402
9403 let rename = workspace
9404 .read(cx)
9405 .project()
9406 .clone()
9407 .update(cx, |project, cx| {
9408 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9409 });
9410 let workspace = workspace.downgrade();
9411
9412 Some(cx.spawn(|editor, mut cx| async move {
9413 let project_transaction = rename.await?;
9414 Self::open_project_transaction(
9415 &editor,
9416 workspace,
9417 project_transaction,
9418 format!("Rename: {} → {}", old_name, new_name),
9419 cx.clone(),
9420 )
9421 .await?;
9422
9423 editor.update(&mut cx, |editor, cx| {
9424 editor.refresh_document_highlights(cx);
9425 })?;
9426 Ok(())
9427 }))
9428 }
9429
9430 fn take_rename(
9431 &mut self,
9432 moving_cursor: bool,
9433 cx: &mut ViewContext<Self>,
9434 ) -> Option<RenameState> {
9435 let rename = self.pending_rename.take()?;
9436 if rename.editor.focus_handle(cx).is_focused(cx) {
9437 cx.focus(&self.focus_handle);
9438 }
9439
9440 self.remove_blocks(
9441 [rename.block_id].into_iter().collect(),
9442 Some(Autoscroll::fit()),
9443 cx,
9444 );
9445 self.clear_highlights::<Rename>(cx);
9446 self.show_local_selections = true;
9447
9448 if moving_cursor {
9449 let rename_editor = rename.editor.read(cx);
9450 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9451
9452 // Update the selection to match the position of the selection inside
9453 // the rename editor.
9454 let snapshot = self.buffer.read(cx).read(cx);
9455 let rename_range = rename.range.to_offset(&snapshot);
9456 let cursor_in_editor = snapshot
9457 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9458 .min(rename_range.end);
9459 drop(snapshot);
9460
9461 self.change_selections(None, cx, |s| {
9462 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9463 });
9464 } else {
9465 self.refresh_document_highlights(cx);
9466 }
9467
9468 Some(rename)
9469 }
9470
9471 pub fn pending_rename(&self) -> Option<&RenameState> {
9472 self.pending_rename.as_ref()
9473 }
9474
9475 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9476 let project = match &self.project {
9477 Some(project) => project.clone(),
9478 None => return None,
9479 };
9480
9481 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9482 }
9483
9484 fn perform_format(
9485 &mut self,
9486 project: Model<Project>,
9487 trigger: FormatTrigger,
9488 cx: &mut ViewContext<Self>,
9489 ) -> Task<Result<()>> {
9490 let buffer = self.buffer().clone();
9491 let mut buffers = buffer.read(cx).all_buffers();
9492 if trigger == FormatTrigger::Save {
9493 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9494 }
9495
9496 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9497 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9498
9499 cx.spawn(|_, mut cx| async move {
9500 let transaction = futures::select_biased! {
9501 () = timeout => {
9502 log::warn!("timed out waiting for formatting");
9503 None
9504 }
9505 transaction = format.log_err().fuse() => transaction,
9506 };
9507
9508 buffer
9509 .update(&mut cx, |buffer, cx| {
9510 if let Some(transaction) = transaction {
9511 if !buffer.is_singleton() {
9512 buffer.push_transaction(&transaction.0, cx);
9513 }
9514 }
9515
9516 cx.notify();
9517 })
9518 .ok();
9519
9520 Ok(())
9521 })
9522 }
9523
9524 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9525 if let Some(project) = self.project.clone() {
9526 self.buffer.update(cx, |multi_buffer, cx| {
9527 project.update(cx, |project, cx| {
9528 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9529 });
9530 })
9531 }
9532 }
9533
9534 fn cancel_language_server_work(
9535 &mut self,
9536 _: &CancelLanguageServerWork,
9537 cx: &mut ViewContext<Self>,
9538 ) {
9539 if let Some(project) = self.project.clone() {
9540 self.buffer.update(cx, |multi_buffer, cx| {
9541 project.update(cx, |project, cx| {
9542 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9543 });
9544 })
9545 }
9546 }
9547
9548 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9549 cx.show_character_palette();
9550 }
9551
9552 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9553 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9554 let buffer = self.buffer.read(cx).snapshot(cx);
9555 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9556 let is_valid = buffer
9557 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9558 .any(|entry| {
9559 entry.diagnostic.is_primary
9560 && !entry.range.is_empty()
9561 && entry.range.start == primary_range_start
9562 && entry.diagnostic.message == active_diagnostics.primary_message
9563 });
9564
9565 if is_valid != active_diagnostics.is_valid {
9566 active_diagnostics.is_valid = is_valid;
9567 let mut new_styles = HashMap::default();
9568 for (block_id, diagnostic) in &active_diagnostics.blocks {
9569 new_styles.insert(
9570 *block_id,
9571 (
9572 None,
9573 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9574 ),
9575 );
9576 }
9577 self.display_map.update(cx, |display_map, cx| {
9578 display_map.replace_blocks(new_styles, cx)
9579 });
9580 }
9581 }
9582 }
9583
9584 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9585 self.dismiss_diagnostics(cx);
9586 let snapshot = self.snapshot(cx);
9587 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9588 let buffer = self.buffer.read(cx).snapshot(cx);
9589
9590 let mut primary_range = None;
9591 let mut primary_message = None;
9592 let mut group_end = Point::zero();
9593 let diagnostic_group = buffer
9594 .diagnostic_group::<MultiBufferPoint>(group_id)
9595 .filter_map(|entry| {
9596 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9597 && (entry.range.start.row == entry.range.end.row
9598 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9599 {
9600 return None;
9601 }
9602 if entry.range.end > group_end {
9603 group_end = entry.range.end;
9604 }
9605 if entry.diagnostic.is_primary {
9606 primary_range = Some(entry.range.clone());
9607 primary_message = Some(entry.diagnostic.message.clone());
9608 }
9609 Some(entry)
9610 })
9611 .collect::<Vec<_>>();
9612 let primary_range = primary_range?;
9613 let primary_message = primary_message?;
9614 let primary_range =
9615 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9616
9617 let blocks = display_map
9618 .insert_blocks(
9619 diagnostic_group.iter().map(|entry| {
9620 let diagnostic = entry.diagnostic.clone();
9621 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9622 BlockProperties {
9623 style: BlockStyle::Fixed,
9624 position: buffer.anchor_after(entry.range.start),
9625 height: message_height,
9626 render: diagnostic_block_renderer(diagnostic, true),
9627 disposition: BlockDisposition::Below,
9628 }
9629 }),
9630 cx,
9631 )
9632 .into_iter()
9633 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9634 .collect();
9635
9636 Some(ActiveDiagnosticGroup {
9637 primary_range,
9638 primary_message,
9639 group_id,
9640 blocks,
9641 is_valid: true,
9642 })
9643 });
9644 self.active_diagnostics.is_some()
9645 }
9646
9647 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9648 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9649 self.display_map.update(cx, |display_map, cx| {
9650 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9651 });
9652 cx.notify();
9653 }
9654 }
9655
9656 pub fn set_selections_from_remote(
9657 &mut self,
9658 selections: Vec<Selection<Anchor>>,
9659 pending_selection: Option<Selection<Anchor>>,
9660 cx: &mut ViewContext<Self>,
9661 ) {
9662 let old_cursor_position = self.selections.newest_anchor().head();
9663 self.selections.change_with(cx, |s| {
9664 s.select_anchors(selections);
9665 if let Some(pending_selection) = pending_selection {
9666 s.set_pending(pending_selection, SelectMode::Character);
9667 } else {
9668 s.clear_pending();
9669 }
9670 });
9671 self.selections_did_change(false, &old_cursor_position, true, cx);
9672 }
9673
9674 fn push_to_selection_history(&mut self) {
9675 self.selection_history.push(SelectionHistoryEntry {
9676 selections: self.selections.disjoint_anchors(),
9677 select_next_state: self.select_next_state.clone(),
9678 select_prev_state: self.select_prev_state.clone(),
9679 add_selections_state: self.add_selections_state.clone(),
9680 });
9681 }
9682
9683 pub fn transact(
9684 &mut self,
9685 cx: &mut ViewContext<Self>,
9686 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9687 ) -> Option<TransactionId> {
9688 self.start_transaction_at(Instant::now(), cx);
9689 update(self, cx);
9690 self.end_transaction_at(Instant::now(), cx)
9691 }
9692
9693 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9694 self.end_selection(cx);
9695 if let Some(tx_id) = self
9696 .buffer
9697 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9698 {
9699 self.selection_history
9700 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9701 cx.emit(EditorEvent::TransactionBegun {
9702 transaction_id: tx_id,
9703 })
9704 }
9705 }
9706
9707 fn end_transaction_at(
9708 &mut self,
9709 now: Instant,
9710 cx: &mut ViewContext<Self>,
9711 ) -> Option<TransactionId> {
9712 if let Some(transaction_id) = self
9713 .buffer
9714 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9715 {
9716 if let Some((_, end_selections)) =
9717 self.selection_history.transaction_mut(transaction_id)
9718 {
9719 *end_selections = Some(self.selections.disjoint_anchors());
9720 } else {
9721 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9722 }
9723
9724 cx.emit(EditorEvent::Edited { transaction_id });
9725 Some(transaction_id)
9726 } else {
9727 None
9728 }
9729 }
9730
9731 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9732 let mut fold_ranges = Vec::new();
9733
9734 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9735
9736 let selections = self.selections.all_adjusted(cx);
9737 for selection in selections {
9738 let range = selection.range().sorted();
9739 let buffer_start_row = range.start.row;
9740
9741 for row in (0..=range.end.row).rev() {
9742 if let Some((foldable_range, fold_text)) =
9743 display_map.foldable_range(MultiBufferRow(row))
9744 {
9745 if foldable_range.end.row >= buffer_start_row {
9746 fold_ranges.push((foldable_range, fold_text));
9747 if row <= range.start.row {
9748 break;
9749 }
9750 }
9751 }
9752 }
9753 }
9754
9755 self.fold_ranges(fold_ranges, true, cx);
9756 }
9757
9758 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9759 let buffer_row = fold_at.buffer_row;
9760 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9761
9762 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9763 let autoscroll = self
9764 .selections
9765 .all::<Point>(cx)
9766 .iter()
9767 .any(|selection| fold_range.overlaps(&selection.range()));
9768
9769 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9770 }
9771 }
9772
9773 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9774 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9775 let buffer = &display_map.buffer_snapshot;
9776 let selections = self.selections.all::<Point>(cx);
9777 let ranges = selections
9778 .iter()
9779 .map(|s| {
9780 let range = s.display_range(&display_map).sorted();
9781 let mut start = range.start.to_point(&display_map);
9782 let mut end = range.end.to_point(&display_map);
9783 start.column = 0;
9784 end.column = buffer.line_len(MultiBufferRow(end.row));
9785 start..end
9786 })
9787 .collect::<Vec<_>>();
9788
9789 self.unfold_ranges(ranges, true, true, cx);
9790 }
9791
9792 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9793 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9794
9795 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9796 ..Point::new(
9797 unfold_at.buffer_row.0,
9798 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9799 );
9800
9801 let autoscroll = self
9802 .selections
9803 .all::<Point>(cx)
9804 .iter()
9805 .any(|selection| selection.range().overlaps(&intersection_range));
9806
9807 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9808 }
9809
9810 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9811 let selections = self.selections.all::<Point>(cx);
9812 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9813 let line_mode = self.selections.line_mode;
9814 let ranges = selections.into_iter().map(|s| {
9815 if line_mode {
9816 let start = Point::new(s.start.row, 0);
9817 let end = Point::new(
9818 s.end.row,
9819 display_map
9820 .buffer_snapshot
9821 .line_len(MultiBufferRow(s.end.row)),
9822 );
9823 (start..end, display_map.fold_placeholder.clone())
9824 } else {
9825 (s.start..s.end, display_map.fold_placeholder.clone())
9826 }
9827 });
9828 self.fold_ranges(ranges, true, cx);
9829 }
9830
9831 pub fn fold_ranges<T: ToOffset + Clone>(
9832 &mut self,
9833 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9834 auto_scroll: bool,
9835 cx: &mut ViewContext<Self>,
9836 ) {
9837 let mut fold_ranges = Vec::new();
9838 let mut buffers_affected = HashMap::default();
9839 let multi_buffer = self.buffer().read(cx);
9840 for (fold_range, fold_text) in ranges {
9841 if let Some((_, buffer, _)) =
9842 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9843 {
9844 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9845 };
9846 fold_ranges.push((fold_range, fold_text));
9847 }
9848
9849 let mut ranges = fold_ranges.into_iter().peekable();
9850 if ranges.peek().is_some() {
9851 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9852
9853 if auto_scroll {
9854 self.request_autoscroll(Autoscroll::fit(), cx);
9855 }
9856
9857 for buffer in buffers_affected.into_values() {
9858 self.sync_expanded_diff_hunks(buffer, cx);
9859 }
9860
9861 cx.notify();
9862
9863 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9864 // Clear diagnostics block when folding a range that contains it.
9865 let snapshot = self.snapshot(cx);
9866 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9867 drop(snapshot);
9868 self.active_diagnostics = Some(active_diagnostics);
9869 self.dismiss_diagnostics(cx);
9870 } else {
9871 self.active_diagnostics = Some(active_diagnostics);
9872 }
9873 }
9874
9875 self.scrollbar_marker_state.dirty = true;
9876 }
9877 }
9878
9879 pub fn unfold_ranges<T: ToOffset + Clone>(
9880 &mut self,
9881 ranges: impl IntoIterator<Item = Range<T>>,
9882 inclusive: bool,
9883 auto_scroll: bool,
9884 cx: &mut ViewContext<Self>,
9885 ) {
9886 let mut unfold_ranges = Vec::new();
9887 let mut buffers_affected = HashMap::default();
9888 let multi_buffer = self.buffer().read(cx);
9889 for range in ranges {
9890 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9891 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9892 };
9893 unfold_ranges.push(range);
9894 }
9895
9896 let mut ranges = unfold_ranges.into_iter().peekable();
9897 if ranges.peek().is_some() {
9898 self.display_map
9899 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9900 if auto_scroll {
9901 self.request_autoscroll(Autoscroll::fit(), cx);
9902 }
9903
9904 for buffer in buffers_affected.into_values() {
9905 self.sync_expanded_diff_hunks(buffer, cx);
9906 }
9907
9908 cx.notify();
9909 self.scrollbar_marker_state.dirty = true;
9910 self.active_indent_guides_state.dirty = true;
9911 }
9912 }
9913
9914 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9915 if hovered != self.gutter_hovered {
9916 self.gutter_hovered = hovered;
9917 cx.notify();
9918 }
9919 }
9920
9921 pub fn insert_blocks(
9922 &mut self,
9923 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9924 autoscroll: Option<Autoscroll>,
9925 cx: &mut ViewContext<Self>,
9926 ) -> Vec<BlockId> {
9927 let blocks = self
9928 .display_map
9929 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9930 if let Some(autoscroll) = autoscroll {
9931 self.request_autoscroll(autoscroll, cx);
9932 }
9933 blocks
9934 }
9935
9936 pub fn replace_blocks(
9937 &mut self,
9938 blocks: HashMap<BlockId, (Option<u8>, RenderBlock)>,
9939 autoscroll: Option<Autoscroll>,
9940 cx: &mut ViewContext<Self>,
9941 ) {
9942 self.display_map
9943 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
9944 if let Some(autoscroll) = autoscroll {
9945 self.request_autoscroll(autoscroll, cx);
9946 }
9947 }
9948
9949 pub fn remove_blocks(
9950 &mut self,
9951 block_ids: HashSet<BlockId>,
9952 autoscroll: Option<Autoscroll>,
9953 cx: &mut ViewContext<Self>,
9954 ) {
9955 self.display_map.update(cx, |display_map, cx| {
9956 display_map.remove_blocks(block_ids, cx)
9957 });
9958 if let Some(autoscroll) = autoscroll {
9959 self.request_autoscroll(autoscroll, cx);
9960 }
9961 }
9962
9963 pub fn insert_creases(
9964 &mut self,
9965 creases: impl IntoIterator<Item = Crease>,
9966 cx: &mut ViewContext<Self>,
9967 ) -> Vec<CreaseId> {
9968 self.display_map
9969 .update(cx, |map, cx| map.insert_creases(creases, cx))
9970 }
9971
9972 pub fn remove_creases(
9973 &mut self,
9974 ids: impl IntoIterator<Item = CreaseId>,
9975 cx: &mut ViewContext<Self>,
9976 ) {
9977 self.display_map
9978 .update(cx, |map, cx| map.remove_creases(ids, cx));
9979 }
9980
9981 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9982 self.display_map
9983 .update(cx, |map, cx| map.snapshot(cx))
9984 .longest_row()
9985 }
9986
9987 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9988 self.display_map
9989 .update(cx, |map, cx| map.snapshot(cx))
9990 .max_point()
9991 }
9992
9993 pub fn text(&self, cx: &AppContext) -> String {
9994 self.buffer.read(cx).read(cx).text()
9995 }
9996
9997 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9998 let text = self.text(cx);
9999 let text = text.trim();
10000
10001 if text.is_empty() {
10002 return None;
10003 }
10004
10005 Some(text.to_string())
10006 }
10007
10008 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10009 self.transact(cx, |this, cx| {
10010 this.buffer
10011 .read(cx)
10012 .as_singleton()
10013 .expect("you can only call set_text on editors for singleton buffers")
10014 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10015 });
10016 }
10017
10018 pub fn display_text(&self, cx: &mut AppContext) -> String {
10019 self.display_map
10020 .update(cx, |map, cx| map.snapshot(cx))
10021 .text()
10022 }
10023
10024 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10025 let mut wrap_guides = smallvec::smallvec![];
10026
10027 if self.show_wrap_guides == Some(false) {
10028 return wrap_guides;
10029 }
10030
10031 let settings = self.buffer.read(cx).settings_at(0, cx);
10032 if settings.show_wrap_guides {
10033 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10034 wrap_guides.push((soft_wrap as usize, true));
10035 }
10036 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10037 }
10038
10039 wrap_guides
10040 }
10041
10042 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10043 let settings = self.buffer.read(cx).settings_at(0, cx);
10044 let mode = self
10045 .soft_wrap_mode_override
10046 .unwrap_or_else(|| settings.soft_wrap);
10047 match mode {
10048 language_settings::SoftWrap::None => SoftWrap::None,
10049 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10050 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10051 language_settings::SoftWrap::PreferredLineLength => {
10052 SoftWrap::Column(settings.preferred_line_length)
10053 }
10054 }
10055 }
10056
10057 pub fn set_soft_wrap_mode(
10058 &mut self,
10059 mode: language_settings::SoftWrap,
10060 cx: &mut ViewContext<Self>,
10061 ) {
10062 self.soft_wrap_mode_override = Some(mode);
10063 cx.notify();
10064 }
10065
10066 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10067 let rem_size = cx.rem_size();
10068 self.display_map.update(cx, |map, cx| {
10069 map.set_font(
10070 style.text.font(),
10071 style.text.font_size.to_pixels(rem_size),
10072 cx,
10073 )
10074 });
10075 self.style = Some(style);
10076 }
10077
10078 pub fn style(&self) -> Option<&EditorStyle> {
10079 self.style.as_ref()
10080 }
10081
10082 // Called by the element. This method is not designed to be called outside of the editor
10083 // element's layout code because it does not notify when rewrapping is computed synchronously.
10084 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10085 self.display_map
10086 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10087 }
10088
10089 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10090 if self.soft_wrap_mode_override.is_some() {
10091 self.soft_wrap_mode_override.take();
10092 } else {
10093 let soft_wrap = match self.soft_wrap_mode(cx) {
10094 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10095 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
10096 language_settings::SoftWrap::PreferLine
10097 }
10098 };
10099 self.soft_wrap_mode_override = Some(soft_wrap);
10100 }
10101 cx.notify();
10102 }
10103
10104 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10105 let Some(workspace) = self.workspace() else {
10106 return;
10107 };
10108 let fs = workspace.read(cx).app_state().fs.clone();
10109 let current_show = TabBarSettings::get_global(cx).show;
10110 update_settings_file::<TabBarSettings>(fs, cx, move |setting| {
10111 setting.show = Some(!current_show);
10112 });
10113 }
10114
10115 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10116 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10117 self.buffer
10118 .read(cx)
10119 .settings_at(0, cx)
10120 .indent_guides
10121 .enabled
10122 });
10123 self.show_indent_guides = Some(!currently_enabled);
10124 cx.notify();
10125 }
10126
10127 fn should_show_indent_guides(&self) -> Option<bool> {
10128 self.show_indent_guides
10129 }
10130
10131 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10132 let mut editor_settings = EditorSettings::get_global(cx).clone();
10133 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10134 EditorSettings::override_global(editor_settings, cx);
10135 }
10136
10137 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10138 self.show_gutter = show_gutter;
10139 cx.notify();
10140 }
10141
10142 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10143 self.show_line_numbers = Some(show_line_numbers);
10144 cx.notify();
10145 }
10146
10147 pub fn set_show_git_diff_gutter(
10148 &mut self,
10149 show_git_diff_gutter: bool,
10150 cx: &mut ViewContext<Self>,
10151 ) {
10152 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10153 cx.notify();
10154 }
10155
10156 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10157 self.show_code_actions = Some(show_code_actions);
10158 cx.notify();
10159 }
10160
10161 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10162 self.show_wrap_guides = Some(show_wrap_guides);
10163 cx.notify();
10164 }
10165
10166 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10167 self.show_indent_guides = Some(show_indent_guides);
10168 cx.notify();
10169 }
10170
10171 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
10172 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10173 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10174 cx.reveal_path(&file.abs_path(cx));
10175 }
10176 }
10177 }
10178
10179 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10180 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10181 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10182 if let Some(path) = file.abs_path(cx).to_str() {
10183 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10184 }
10185 }
10186 }
10187 }
10188
10189 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10190 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10191 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10192 if let Some(path) = file.path().to_str() {
10193 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10194 }
10195 }
10196 }
10197 }
10198
10199 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10200 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10201
10202 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10203 self.start_git_blame(true, cx);
10204 }
10205
10206 cx.notify();
10207 }
10208
10209 pub fn toggle_git_blame_inline(
10210 &mut self,
10211 _: &ToggleGitBlameInline,
10212 cx: &mut ViewContext<Self>,
10213 ) {
10214 self.toggle_git_blame_inline_internal(true, cx);
10215 cx.notify();
10216 }
10217
10218 pub fn git_blame_inline_enabled(&self) -> bool {
10219 self.git_blame_inline_enabled
10220 }
10221
10222 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10223 self.show_selection_menu = self
10224 .show_selection_menu
10225 .map(|show_selections_menu| !show_selections_menu)
10226 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10227
10228 cx.notify();
10229 }
10230
10231 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10232 self.show_selection_menu
10233 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10234 }
10235
10236 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10237 if let Some(project) = self.project.as_ref() {
10238 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10239 return;
10240 };
10241
10242 if buffer.read(cx).file().is_none() {
10243 return;
10244 }
10245
10246 let focused = self.focus_handle(cx).contains_focused(cx);
10247
10248 let project = project.clone();
10249 let blame =
10250 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10251 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10252 self.blame = Some(blame);
10253 }
10254 }
10255
10256 fn toggle_git_blame_inline_internal(
10257 &mut self,
10258 user_triggered: bool,
10259 cx: &mut ViewContext<Self>,
10260 ) {
10261 if self.git_blame_inline_enabled {
10262 self.git_blame_inline_enabled = false;
10263 self.show_git_blame_inline = false;
10264 self.show_git_blame_inline_delay_task.take();
10265 } else {
10266 self.git_blame_inline_enabled = true;
10267 self.start_git_blame_inline(user_triggered, cx);
10268 }
10269
10270 cx.notify();
10271 }
10272
10273 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10274 self.start_git_blame(user_triggered, cx);
10275
10276 if ProjectSettings::get_global(cx)
10277 .git
10278 .inline_blame_delay()
10279 .is_some()
10280 {
10281 self.start_inline_blame_timer(cx);
10282 } else {
10283 self.show_git_blame_inline = true
10284 }
10285 }
10286
10287 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10288 self.blame.as_ref()
10289 }
10290
10291 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10292 self.show_git_blame_gutter && self.has_blame_entries(cx)
10293 }
10294
10295 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10296 self.show_git_blame_inline
10297 && self.focus_handle.is_focused(cx)
10298 && !self.newest_selection_head_on_empty_line(cx)
10299 && self.has_blame_entries(cx)
10300 }
10301
10302 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10303 self.blame()
10304 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10305 }
10306
10307 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10308 let cursor_anchor = self.selections.newest_anchor().head();
10309
10310 let snapshot = self.buffer.read(cx).snapshot(cx);
10311 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10312
10313 snapshot.line_len(buffer_row) == 0
10314 }
10315
10316 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10317 let (path, selection, repo) = maybe!({
10318 let project_handle = self.project.as_ref()?.clone();
10319 let project = project_handle.read(cx);
10320
10321 let selection = self.selections.newest::<Point>(cx);
10322 let selection_range = selection.range();
10323
10324 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10325 (buffer, selection_range.start.row..selection_range.end.row)
10326 } else {
10327 let buffer_ranges = self
10328 .buffer()
10329 .read(cx)
10330 .range_to_buffer_ranges(selection_range, cx);
10331
10332 let (buffer, range, _) = if selection.reversed {
10333 buffer_ranges.first()
10334 } else {
10335 buffer_ranges.last()
10336 }?;
10337
10338 let snapshot = buffer.read(cx).snapshot();
10339 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10340 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10341 (buffer.clone(), selection)
10342 };
10343
10344 let path = buffer
10345 .read(cx)
10346 .file()?
10347 .as_local()?
10348 .path()
10349 .to_str()?
10350 .to_string();
10351 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10352 Some((path, selection, repo))
10353 })
10354 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10355
10356 const REMOTE_NAME: &str = "origin";
10357 let origin_url = repo
10358 .remote_url(REMOTE_NAME)
10359 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10360 let sha = repo
10361 .head_sha()
10362 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10363
10364 let (provider, remote) =
10365 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10366 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10367
10368 Ok(provider.build_permalink(
10369 remote,
10370 BuildPermalinkParams {
10371 sha: &sha,
10372 path: &path,
10373 selection: Some(selection),
10374 },
10375 ))
10376 }
10377
10378 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10379 let permalink = self.get_permalink_to_line(cx);
10380
10381 match permalink {
10382 Ok(permalink) => {
10383 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10384 }
10385 Err(err) => {
10386 let message = format!("Failed to copy permalink: {err}");
10387
10388 Err::<(), anyhow::Error>(err).log_err();
10389
10390 if let Some(workspace) = self.workspace() {
10391 workspace.update(cx, |workspace, cx| {
10392 struct CopyPermalinkToLine;
10393
10394 workspace.show_toast(
10395 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10396 cx,
10397 )
10398 })
10399 }
10400 }
10401 }
10402 }
10403
10404 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10405 let permalink = self.get_permalink_to_line(cx);
10406
10407 match permalink {
10408 Ok(permalink) => {
10409 cx.open_url(permalink.as_ref());
10410 }
10411 Err(err) => {
10412 let message = format!("Failed to open permalink: {err}");
10413
10414 Err::<(), anyhow::Error>(err).log_err();
10415
10416 if let Some(workspace) = self.workspace() {
10417 workspace.update(cx, |workspace, cx| {
10418 struct OpenPermalinkToLine;
10419
10420 workspace.show_toast(
10421 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10422 cx,
10423 )
10424 })
10425 }
10426 }
10427 }
10428 }
10429
10430 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10431 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10432 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10433 pub fn highlight_rows<T: 'static>(
10434 &mut self,
10435 rows: RangeInclusive<Anchor>,
10436 color: Option<Hsla>,
10437 should_autoscroll: bool,
10438 cx: &mut ViewContext<Self>,
10439 ) {
10440 let snapshot = self.buffer().read(cx).snapshot(cx);
10441 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10442 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10443 highlight
10444 .range
10445 .start()
10446 .cmp(&rows.start(), &snapshot)
10447 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10448 });
10449 match (color, existing_highlight_index) {
10450 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10451 ix,
10452 RowHighlight {
10453 index: post_inc(&mut self.highlight_order),
10454 range: rows,
10455 should_autoscroll,
10456 color,
10457 },
10458 ),
10459 (None, Ok(i)) => {
10460 row_highlights.remove(i);
10461 }
10462 }
10463 }
10464
10465 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10466 pub fn clear_row_highlights<T: 'static>(&mut self) {
10467 self.highlighted_rows.remove(&TypeId::of::<T>());
10468 }
10469
10470 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10471 pub fn highlighted_rows<T: 'static>(
10472 &self,
10473 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10474 Some(
10475 self.highlighted_rows
10476 .get(&TypeId::of::<T>())?
10477 .iter()
10478 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10479 )
10480 }
10481
10482 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10483 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10484 /// Allows to ignore certain kinds of highlights.
10485 pub fn highlighted_display_rows(
10486 &mut self,
10487 cx: &mut WindowContext,
10488 ) -> BTreeMap<DisplayRow, Hsla> {
10489 let snapshot = self.snapshot(cx);
10490 let mut used_highlight_orders = HashMap::default();
10491 self.highlighted_rows
10492 .iter()
10493 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10494 .fold(
10495 BTreeMap::<DisplayRow, Hsla>::new(),
10496 |mut unique_rows, highlight| {
10497 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10498 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10499 for row in start_row.0..=end_row.0 {
10500 let used_index =
10501 used_highlight_orders.entry(row).or_insert(highlight.index);
10502 if highlight.index >= *used_index {
10503 *used_index = highlight.index;
10504 match highlight.color {
10505 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10506 None => unique_rows.remove(&DisplayRow(row)),
10507 };
10508 }
10509 }
10510 unique_rows
10511 },
10512 )
10513 }
10514
10515 pub fn highlighted_display_row_for_autoscroll(
10516 &self,
10517 snapshot: &DisplaySnapshot,
10518 ) -> Option<DisplayRow> {
10519 self.highlighted_rows
10520 .values()
10521 .flat_map(|highlighted_rows| highlighted_rows.iter())
10522 .filter_map(|highlight| {
10523 if highlight.color.is_none() || !highlight.should_autoscroll {
10524 return None;
10525 }
10526 Some(highlight.range.start().to_display_point(&snapshot).row())
10527 })
10528 .min()
10529 }
10530
10531 pub fn set_search_within_ranges(
10532 &mut self,
10533 ranges: &[Range<Anchor>],
10534 cx: &mut ViewContext<Self>,
10535 ) {
10536 self.highlight_background::<SearchWithinRange>(
10537 ranges,
10538 |colors| colors.editor_document_highlight_read_background,
10539 cx,
10540 )
10541 }
10542
10543 pub fn set_breadcrumb_header(&mut self, new_header: String) {
10544 self.breadcrumb_header = Some(new_header);
10545 }
10546
10547 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10548 self.clear_background_highlights::<SearchWithinRange>(cx);
10549 }
10550
10551 pub fn highlight_background<T: 'static>(
10552 &mut self,
10553 ranges: &[Range<Anchor>],
10554 color_fetcher: fn(&ThemeColors) -> Hsla,
10555 cx: &mut ViewContext<Self>,
10556 ) {
10557 let snapshot = self.snapshot(cx);
10558 // this is to try and catch a panic sooner
10559 for range in ranges {
10560 snapshot
10561 .buffer_snapshot
10562 .summary_for_anchor::<usize>(&range.start);
10563 snapshot
10564 .buffer_snapshot
10565 .summary_for_anchor::<usize>(&range.end);
10566 }
10567
10568 self.background_highlights
10569 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10570 self.scrollbar_marker_state.dirty = true;
10571 cx.notify();
10572 }
10573
10574 pub fn clear_background_highlights<T: 'static>(
10575 &mut self,
10576 cx: &mut ViewContext<Self>,
10577 ) -> Option<BackgroundHighlight> {
10578 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10579 if !text_highlights.1.is_empty() {
10580 self.scrollbar_marker_state.dirty = true;
10581 cx.notify();
10582 }
10583 Some(text_highlights)
10584 }
10585
10586 pub fn highlight_gutter<T: 'static>(
10587 &mut self,
10588 ranges: &[Range<Anchor>],
10589 color_fetcher: fn(&AppContext) -> Hsla,
10590 cx: &mut ViewContext<Self>,
10591 ) {
10592 self.gutter_highlights
10593 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10594 cx.notify();
10595 }
10596
10597 pub fn clear_gutter_highlights<T: 'static>(
10598 &mut self,
10599 cx: &mut ViewContext<Self>,
10600 ) -> Option<GutterHighlight> {
10601 cx.notify();
10602 self.gutter_highlights.remove(&TypeId::of::<T>())
10603 }
10604
10605 #[cfg(feature = "test-support")]
10606 pub fn all_text_background_highlights(
10607 &mut self,
10608 cx: &mut ViewContext<Self>,
10609 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10610 let snapshot = self.snapshot(cx);
10611 let buffer = &snapshot.buffer_snapshot;
10612 let start = buffer.anchor_before(0);
10613 let end = buffer.anchor_after(buffer.len());
10614 let theme = cx.theme().colors();
10615 self.background_highlights_in_range(start..end, &snapshot, theme)
10616 }
10617
10618 #[cfg(feature = "test-support")]
10619 pub fn search_background_highlights(
10620 &mut self,
10621 cx: &mut ViewContext<Self>,
10622 ) -> Vec<Range<Point>> {
10623 let snapshot = self.buffer().read(cx).snapshot(cx);
10624
10625 let highlights = self
10626 .background_highlights
10627 .get(&TypeId::of::<items::BufferSearchHighlights>());
10628
10629 if let Some((_color, ranges)) = highlights {
10630 ranges
10631 .iter()
10632 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10633 .collect_vec()
10634 } else {
10635 vec![]
10636 }
10637 }
10638
10639 fn document_highlights_for_position<'a>(
10640 &'a self,
10641 position: Anchor,
10642 buffer: &'a MultiBufferSnapshot,
10643 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10644 let read_highlights = self
10645 .background_highlights
10646 .get(&TypeId::of::<DocumentHighlightRead>())
10647 .map(|h| &h.1);
10648 let write_highlights = self
10649 .background_highlights
10650 .get(&TypeId::of::<DocumentHighlightWrite>())
10651 .map(|h| &h.1);
10652 let left_position = position.bias_left(buffer);
10653 let right_position = position.bias_right(buffer);
10654 read_highlights
10655 .into_iter()
10656 .chain(write_highlights)
10657 .flat_map(move |ranges| {
10658 let start_ix = match ranges.binary_search_by(|probe| {
10659 let cmp = probe.end.cmp(&left_position, buffer);
10660 if cmp.is_ge() {
10661 Ordering::Greater
10662 } else {
10663 Ordering::Less
10664 }
10665 }) {
10666 Ok(i) | Err(i) => i,
10667 };
10668
10669 ranges[start_ix..]
10670 .iter()
10671 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10672 })
10673 }
10674
10675 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10676 self.background_highlights
10677 .get(&TypeId::of::<T>())
10678 .map_or(false, |(_, highlights)| !highlights.is_empty())
10679 }
10680
10681 pub fn background_highlights_in_range(
10682 &self,
10683 search_range: Range<Anchor>,
10684 display_snapshot: &DisplaySnapshot,
10685 theme: &ThemeColors,
10686 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10687 let mut results = Vec::new();
10688 for (color_fetcher, ranges) in self.background_highlights.values() {
10689 let color = color_fetcher(theme);
10690 let start_ix = match ranges.binary_search_by(|probe| {
10691 let cmp = probe
10692 .end
10693 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10694 if cmp.is_gt() {
10695 Ordering::Greater
10696 } else {
10697 Ordering::Less
10698 }
10699 }) {
10700 Ok(i) | Err(i) => i,
10701 };
10702 for range in &ranges[start_ix..] {
10703 if range
10704 .start
10705 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10706 .is_ge()
10707 {
10708 break;
10709 }
10710
10711 let start = range.start.to_display_point(&display_snapshot);
10712 let end = range.end.to_display_point(&display_snapshot);
10713 results.push((start..end, color))
10714 }
10715 }
10716 results
10717 }
10718
10719 pub fn background_highlight_row_ranges<T: 'static>(
10720 &self,
10721 search_range: Range<Anchor>,
10722 display_snapshot: &DisplaySnapshot,
10723 count: usize,
10724 ) -> Vec<RangeInclusive<DisplayPoint>> {
10725 let mut results = Vec::new();
10726 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10727 return vec![];
10728 };
10729
10730 let start_ix = match ranges.binary_search_by(|probe| {
10731 let cmp = probe
10732 .end
10733 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10734 if cmp.is_gt() {
10735 Ordering::Greater
10736 } else {
10737 Ordering::Less
10738 }
10739 }) {
10740 Ok(i) | Err(i) => i,
10741 };
10742 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10743 if let (Some(start_display), Some(end_display)) = (start, end) {
10744 results.push(
10745 start_display.to_display_point(display_snapshot)
10746 ..=end_display.to_display_point(display_snapshot),
10747 );
10748 }
10749 };
10750 let mut start_row: Option<Point> = None;
10751 let mut end_row: Option<Point> = None;
10752 if ranges.len() > count {
10753 return Vec::new();
10754 }
10755 for range in &ranges[start_ix..] {
10756 if range
10757 .start
10758 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10759 .is_ge()
10760 {
10761 break;
10762 }
10763 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10764 if let Some(current_row) = &end_row {
10765 if end.row == current_row.row {
10766 continue;
10767 }
10768 }
10769 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10770 if start_row.is_none() {
10771 assert_eq!(end_row, None);
10772 start_row = Some(start);
10773 end_row = Some(end);
10774 continue;
10775 }
10776 if let Some(current_end) = end_row.as_mut() {
10777 if start.row > current_end.row + 1 {
10778 push_region(start_row, end_row);
10779 start_row = Some(start);
10780 end_row = Some(end);
10781 } else {
10782 // Merge two hunks.
10783 *current_end = end;
10784 }
10785 } else {
10786 unreachable!();
10787 }
10788 }
10789 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10790 push_region(start_row, end_row);
10791 results
10792 }
10793
10794 pub fn gutter_highlights_in_range(
10795 &self,
10796 search_range: Range<Anchor>,
10797 display_snapshot: &DisplaySnapshot,
10798 cx: &AppContext,
10799 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10800 let mut results = Vec::new();
10801 for (color_fetcher, ranges) in self.gutter_highlights.values() {
10802 let color = color_fetcher(cx);
10803 let start_ix = match ranges.binary_search_by(|probe| {
10804 let cmp = probe
10805 .end
10806 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10807 if cmp.is_gt() {
10808 Ordering::Greater
10809 } else {
10810 Ordering::Less
10811 }
10812 }) {
10813 Ok(i) | Err(i) => i,
10814 };
10815 for range in &ranges[start_ix..] {
10816 if range
10817 .start
10818 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10819 .is_ge()
10820 {
10821 break;
10822 }
10823
10824 let start = range.start.to_display_point(&display_snapshot);
10825 let end = range.end.to_display_point(&display_snapshot);
10826 results.push((start..end, color))
10827 }
10828 }
10829 results
10830 }
10831
10832 /// Get the text ranges corresponding to the redaction query
10833 pub fn redacted_ranges(
10834 &self,
10835 search_range: Range<Anchor>,
10836 display_snapshot: &DisplaySnapshot,
10837 cx: &WindowContext,
10838 ) -> Vec<Range<DisplayPoint>> {
10839 display_snapshot
10840 .buffer_snapshot
10841 .redacted_ranges(search_range, |file| {
10842 if let Some(file) = file {
10843 file.is_private()
10844 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10845 } else {
10846 false
10847 }
10848 })
10849 .map(|range| {
10850 range.start.to_display_point(display_snapshot)
10851 ..range.end.to_display_point(display_snapshot)
10852 })
10853 .collect()
10854 }
10855
10856 pub fn highlight_text<T: 'static>(
10857 &mut self,
10858 ranges: Vec<Range<Anchor>>,
10859 style: HighlightStyle,
10860 cx: &mut ViewContext<Self>,
10861 ) {
10862 self.display_map.update(cx, |map, _| {
10863 map.highlight_text(TypeId::of::<T>(), ranges, style)
10864 });
10865 cx.notify();
10866 }
10867
10868 pub(crate) fn highlight_inlays<T: 'static>(
10869 &mut self,
10870 highlights: Vec<InlayHighlight>,
10871 style: HighlightStyle,
10872 cx: &mut ViewContext<Self>,
10873 ) {
10874 self.display_map.update(cx, |map, _| {
10875 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10876 });
10877 cx.notify();
10878 }
10879
10880 pub fn text_highlights<'a, T: 'static>(
10881 &'a self,
10882 cx: &'a AppContext,
10883 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10884 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10885 }
10886
10887 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10888 let cleared = self
10889 .display_map
10890 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10891 if cleared {
10892 cx.notify();
10893 }
10894 }
10895
10896 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10897 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10898 && self.focus_handle.is_focused(cx)
10899 }
10900
10901 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10902 cx.notify();
10903 }
10904
10905 fn on_buffer_event(
10906 &mut self,
10907 multibuffer: Model<MultiBuffer>,
10908 event: &multi_buffer::Event,
10909 cx: &mut ViewContext<Self>,
10910 ) {
10911 match event {
10912 multi_buffer::Event::Edited {
10913 singleton_buffer_edited,
10914 } => {
10915 self.scrollbar_marker_state.dirty = true;
10916 self.active_indent_guides_state.dirty = true;
10917 self.refresh_active_diagnostics(cx);
10918 self.refresh_code_actions(cx);
10919 if self.has_active_inline_completion(cx) {
10920 self.update_visible_inline_completion(cx);
10921 }
10922 cx.emit(EditorEvent::BufferEdited);
10923 cx.emit(SearchEvent::MatchesInvalidated);
10924 if *singleton_buffer_edited {
10925 if let Some(project) = &self.project {
10926 let project = project.read(cx);
10927 let languages_affected = multibuffer
10928 .read(cx)
10929 .all_buffers()
10930 .into_iter()
10931 .filter_map(|buffer| {
10932 let buffer = buffer.read(cx);
10933 let language = buffer.language()?;
10934 if project.is_local()
10935 && project.language_servers_for_buffer(buffer, cx).count() == 0
10936 {
10937 None
10938 } else {
10939 Some(language)
10940 }
10941 })
10942 .cloned()
10943 .collect::<HashSet<_>>();
10944 if !languages_affected.is_empty() {
10945 self.refresh_inlay_hints(
10946 InlayHintRefreshReason::BufferEdited(languages_affected),
10947 cx,
10948 );
10949 }
10950 }
10951 }
10952
10953 let Some(project) = &self.project else { return };
10954 let telemetry = project.read(cx).client().telemetry().clone();
10955 refresh_linked_ranges(self, cx);
10956 telemetry.log_edit_event("editor");
10957 }
10958 multi_buffer::Event::ExcerptsAdded {
10959 buffer,
10960 predecessor,
10961 excerpts,
10962 } => {
10963 self.tasks_update_task = Some(self.refresh_runnables(cx));
10964 cx.emit(EditorEvent::ExcerptsAdded {
10965 buffer: buffer.clone(),
10966 predecessor: *predecessor,
10967 excerpts: excerpts.clone(),
10968 });
10969 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10970 }
10971 multi_buffer::Event::ExcerptsRemoved { ids } => {
10972 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10973 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10974 }
10975 multi_buffer::Event::ExcerptsEdited { ids } => {
10976 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
10977 }
10978 multi_buffer::Event::ExcerptsExpanded { ids } => {
10979 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
10980 }
10981 multi_buffer::Event::Reparsed(buffer_id) => {
10982 self.tasks_update_task = Some(self.refresh_runnables(cx));
10983
10984 cx.emit(EditorEvent::Reparsed(*buffer_id));
10985 }
10986 multi_buffer::Event::LanguageChanged(buffer_id) => {
10987 linked_editing_ranges::refresh_linked_ranges(self, cx);
10988 cx.emit(EditorEvent::Reparsed(*buffer_id));
10989 cx.notify();
10990 }
10991 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10992 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10993 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10994 cx.emit(EditorEvent::TitleChanged)
10995 }
10996 multi_buffer::Event::DiffBaseChanged => {
10997 self.scrollbar_marker_state.dirty = true;
10998 cx.emit(EditorEvent::DiffBaseChanged);
10999 cx.notify();
11000 }
11001 multi_buffer::Event::DiffUpdated { buffer } => {
11002 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11003 cx.notify();
11004 }
11005 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11006 multi_buffer::Event::DiagnosticsUpdated => {
11007 self.refresh_active_diagnostics(cx);
11008 self.scrollbar_marker_state.dirty = true;
11009 cx.notify();
11010 }
11011 _ => {}
11012 };
11013 }
11014
11015 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11016 cx.notify();
11017 }
11018
11019 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11020 self.refresh_inline_completion(true, cx);
11021 self.refresh_inlay_hints(
11022 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11023 self.selections.newest_anchor().head(),
11024 &self.buffer.read(cx).snapshot(cx),
11025 cx,
11026 )),
11027 cx,
11028 );
11029 let editor_settings = EditorSettings::get_global(cx);
11030 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11031 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11032
11033 if self.mode == EditorMode::Full {
11034 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
11035 if self.git_blame_inline_enabled != inline_blame_enabled {
11036 self.toggle_git_blame_inline_internal(false, cx);
11037 }
11038 }
11039
11040 cx.notify();
11041 }
11042
11043 pub fn set_searchable(&mut self, searchable: bool) {
11044 self.searchable = searchable;
11045 }
11046
11047 pub fn searchable(&self) -> bool {
11048 self.searchable
11049 }
11050
11051 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11052 self.open_excerpts_common(true, cx)
11053 }
11054
11055 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11056 self.open_excerpts_common(false, cx)
11057 }
11058
11059 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11060 let buffer = self.buffer.read(cx);
11061 if buffer.is_singleton() {
11062 cx.propagate();
11063 return;
11064 }
11065
11066 let Some(workspace) = self.workspace() else {
11067 cx.propagate();
11068 return;
11069 };
11070
11071 let mut new_selections_by_buffer = HashMap::default();
11072 for selection in self.selections.all::<usize>(cx) {
11073 for (buffer, mut range, _) in
11074 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11075 {
11076 if selection.reversed {
11077 mem::swap(&mut range.start, &mut range.end);
11078 }
11079 new_selections_by_buffer
11080 .entry(buffer)
11081 .or_insert(Vec::new())
11082 .push(range)
11083 }
11084 }
11085
11086 // We defer the pane interaction because we ourselves are a workspace item
11087 // and activating a new item causes the pane to call a method on us reentrantly,
11088 // which panics if we're on the stack.
11089 cx.window_context().defer(move |cx| {
11090 workspace.update(cx, |workspace, cx| {
11091 let pane = if split {
11092 workspace.adjacent_pane(cx)
11093 } else {
11094 workspace.active_pane().clone()
11095 };
11096
11097 for (buffer, ranges) in new_selections_by_buffer {
11098 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
11099 editor.update(cx, |editor, cx| {
11100 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11101 s.select_ranges(ranges);
11102 });
11103 });
11104 }
11105 })
11106 });
11107 }
11108
11109 fn jump(
11110 &mut self,
11111 path: ProjectPath,
11112 position: Point,
11113 anchor: language::Anchor,
11114 offset_from_top: u32,
11115 cx: &mut ViewContext<Self>,
11116 ) {
11117 let workspace = self.workspace();
11118 cx.spawn(|_, mut cx| async move {
11119 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11120 let editor = workspace.update(&mut cx, |workspace, cx| {
11121 // Reset the preview item id before opening the new item
11122 workspace.active_pane().update(cx, |pane, cx| {
11123 pane.set_preview_item_id(None, cx);
11124 });
11125 workspace.open_path_preview(path, None, true, true, cx)
11126 })?;
11127 let editor = editor
11128 .await?
11129 .downcast::<Editor>()
11130 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11131 .downgrade();
11132 editor.update(&mut cx, |editor, cx| {
11133 let buffer = editor
11134 .buffer()
11135 .read(cx)
11136 .as_singleton()
11137 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11138 let buffer = buffer.read(cx);
11139 let cursor = if buffer.can_resolve(&anchor) {
11140 language::ToPoint::to_point(&anchor, buffer)
11141 } else {
11142 buffer.clip_point(position, Bias::Left)
11143 };
11144
11145 let nav_history = editor.nav_history.take();
11146 editor.change_selections(
11147 Some(Autoscroll::top_relative(offset_from_top as usize)),
11148 cx,
11149 |s| {
11150 s.select_ranges([cursor..cursor]);
11151 },
11152 );
11153 editor.nav_history = nav_history;
11154
11155 anyhow::Ok(())
11156 })??;
11157
11158 anyhow::Ok(())
11159 })
11160 .detach_and_log_err(cx);
11161 }
11162
11163 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11164 let snapshot = self.buffer.read(cx).read(cx);
11165 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11166 Some(
11167 ranges
11168 .iter()
11169 .map(move |range| {
11170 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11171 })
11172 .collect(),
11173 )
11174 }
11175
11176 fn selection_replacement_ranges(
11177 &self,
11178 range: Range<OffsetUtf16>,
11179 cx: &AppContext,
11180 ) -> Vec<Range<OffsetUtf16>> {
11181 let selections = self.selections.all::<OffsetUtf16>(cx);
11182 let newest_selection = selections
11183 .iter()
11184 .max_by_key(|selection| selection.id)
11185 .unwrap();
11186 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11187 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11188 let snapshot = self.buffer.read(cx).read(cx);
11189 selections
11190 .into_iter()
11191 .map(|mut selection| {
11192 selection.start.0 =
11193 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11194 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11195 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11196 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11197 })
11198 .collect()
11199 }
11200
11201 fn report_editor_event(
11202 &self,
11203 operation: &'static str,
11204 file_extension: Option<String>,
11205 cx: &AppContext,
11206 ) {
11207 if cfg!(any(test, feature = "test-support")) {
11208 return;
11209 }
11210
11211 let Some(project) = &self.project else { return };
11212
11213 // If None, we are in a file without an extension
11214 let file = self
11215 .buffer
11216 .read(cx)
11217 .as_singleton()
11218 .and_then(|b| b.read(cx).file());
11219 let file_extension = file_extension.or(file
11220 .as_ref()
11221 .and_then(|file| Path::new(file.file_name(cx)).extension())
11222 .and_then(|e| e.to_str())
11223 .map(|a| a.to_string()));
11224
11225 let vim_mode = cx
11226 .global::<SettingsStore>()
11227 .raw_user_settings()
11228 .get("vim_mode")
11229 == Some(&serde_json::Value::Bool(true));
11230
11231 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11232 == language::language_settings::InlineCompletionProvider::Copilot;
11233 let copilot_enabled_for_language = self
11234 .buffer
11235 .read(cx)
11236 .settings_at(0, cx)
11237 .show_inline_completions;
11238
11239 let telemetry = project.read(cx).client().telemetry().clone();
11240 telemetry.report_editor_event(
11241 file_extension,
11242 vim_mode,
11243 operation,
11244 copilot_enabled,
11245 copilot_enabled_for_language,
11246 )
11247 }
11248
11249 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11250 /// with each line being an array of {text, highlight} objects.
11251 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11252 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11253 return;
11254 };
11255
11256 #[derive(Serialize)]
11257 struct Chunk<'a> {
11258 text: String,
11259 highlight: Option<&'a str>,
11260 }
11261
11262 let snapshot = buffer.read(cx).snapshot();
11263 let range = self
11264 .selected_text_range(cx)
11265 .and_then(|selected_range| {
11266 if selected_range.is_empty() {
11267 None
11268 } else {
11269 Some(selected_range)
11270 }
11271 })
11272 .unwrap_or_else(|| 0..snapshot.len());
11273
11274 let chunks = snapshot.chunks(range, true);
11275 let mut lines = Vec::new();
11276 let mut line: VecDeque<Chunk> = VecDeque::new();
11277
11278 let Some(style) = self.style.as_ref() else {
11279 return;
11280 };
11281
11282 for chunk in chunks {
11283 let highlight = chunk
11284 .syntax_highlight_id
11285 .and_then(|id| id.name(&style.syntax));
11286 let mut chunk_lines = chunk.text.split('\n').peekable();
11287 while let Some(text) = chunk_lines.next() {
11288 let mut merged_with_last_token = false;
11289 if let Some(last_token) = line.back_mut() {
11290 if last_token.highlight == highlight {
11291 last_token.text.push_str(text);
11292 merged_with_last_token = true;
11293 }
11294 }
11295
11296 if !merged_with_last_token {
11297 line.push_back(Chunk {
11298 text: text.into(),
11299 highlight,
11300 });
11301 }
11302
11303 if chunk_lines.peek().is_some() {
11304 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11305 line.pop_front();
11306 }
11307 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11308 line.pop_back();
11309 }
11310
11311 lines.push(mem::take(&mut line));
11312 }
11313 }
11314 }
11315
11316 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11317 return;
11318 };
11319 cx.write_to_clipboard(ClipboardItem::new(lines));
11320 }
11321
11322 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11323 &self.inlay_hint_cache
11324 }
11325
11326 pub fn replay_insert_event(
11327 &mut self,
11328 text: &str,
11329 relative_utf16_range: Option<Range<isize>>,
11330 cx: &mut ViewContext<Self>,
11331 ) {
11332 if !self.input_enabled {
11333 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11334 return;
11335 }
11336 if let Some(relative_utf16_range) = relative_utf16_range {
11337 let selections = self.selections.all::<OffsetUtf16>(cx);
11338 self.change_selections(None, cx, |s| {
11339 let new_ranges = selections.into_iter().map(|range| {
11340 let start = OffsetUtf16(
11341 range
11342 .head()
11343 .0
11344 .saturating_add_signed(relative_utf16_range.start),
11345 );
11346 let end = OffsetUtf16(
11347 range
11348 .head()
11349 .0
11350 .saturating_add_signed(relative_utf16_range.end),
11351 );
11352 start..end
11353 });
11354 s.select_ranges(new_ranges);
11355 });
11356 }
11357
11358 self.handle_input(text, cx);
11359 }
11360
11361 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11362 let Some(project) = self.project.as_ref() else {
11363 return false;
11364 };
11365 let project = project.read(cx);
11366
11367 let mut supports = false;
11368 self.buffer().read(cx).for_each_buffer(|buffer| {
11369 if !supports {
11370 supports = project
11371 .language_servers_for_buffer(buffer.read(cx), cx)
11372 .any(
11373 |(_, server)| match server.capabilities().inlay_hint_provider {
11374 Some(lsp::OneOf::Left(enabled)) => enabled,
11375 Some(lsp::OneOf::Right(_)) => true,
11376 None => false,
11377 },
11378 )
11379 }
11380 });
11381 supports
11382 }
11383
11384 pub fn focus(&self, cx: &mut WindowContext) {
11385 cx.focus(&self.focus_handle)
11386 }
11387
11388 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11389 self.focus_handle.is_focused(cx)
11390 }
11391
11392 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11393 cx.emit(EditorEvent::Focused);
11394
11395 if let Some(descendant) = self
11396 .last_focused_descendant
11397 .take()
11398 .and_then(|descendant| descendant.upgrade())
11399 {
11400 cx.focus(&descendant);
11401 } else {
11402 if let Some(blame) = self.blame.as_ref() {
11403 blame.update(cx, GitBlame::focus)
11404 }
11405
11406 self.blink_manager.update(cx, BlinkManager::enable);
11407 self.show_cursor_names(cx);
11408 self.buffer.update(cx, |buffer, cx| {
11409 buffer.finalize_last_transaction(cx);
11410 if self.leader_peer_id.is_none() {
11411 buffer.set_active_selections(
11412 &self.selections.disjoint_anchors(),
11413 self.selections.line_mode,
11414 self.cursor_shape,
11415 cx,
11416 );
11417 }
11418 });
11419 }
11420 }
11421
11422 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11423 if event.blurred != self.focus_handle {
11424 self.last_focused_descendant = Some(event.blurred);
11425 }
11426 }
11427
11428 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11429 self.blink_manager.update(cx, BlinkManager::disable);
11430 self.buffer
11431 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11432
11433 if let Some(blame) = self.blame.as_ref() {
11434 blame.update(cx, GitBlame::blur)
11435 }
11436 self.hide_context_menu(cx);
11437 hide_hover(self, cx);
11438 cx.emit(EditorEvent::Blurred);
11439 cx.notify();
11440 }
11441
11442 pub fn register_action<A: Action>(
11443 &mut self,
11444 listener: impl Fn(&A, &mut WindowContext) + 'static,
11445 ) -> Subscription {
11446 let id = self.next_editor_action_id.post_inc();
11447 let listener = Arc::new(listener);
11448 self.editor_actions.borrow_mut().insert(
11449 id,
11450 Box::new(move |cx| {
11451 let _view = cx.view().clone();
11452 let cx = cx.window_context();
11453 let listener = listener.clone();
11454 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11455 let action = action.downcast_ref().unwrap();
11456 if phase == DispatchPhase::Bubble {
11457 listener(action, cx)
11458 }
11459 })
11460 }),
11461 );
11462
11463 let editor_actions = self.editor_actions.clone();
11464 Subscription::new(move || {
11465 editor_actions.borrow_mut().remove(&id);
11466 })
11467 }
11468
11469 pub fn file_header_size(&self) -> u8 {
11470 self.file_header_size
11471 }
11472}
11473
11474fn hunks_for_selections(
11475 multi_buffer_snapshot: &MultiBufferSnapshot,
11476 selections: &[Selection<Anchor>],
11477) -> Vec<DiffHunk<MultiBufferRow>> {
11478 let mut hunks = Vec::with_capacity(selections.len());
11479 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11480 HashMap::default();
11481 let buffer_rows_for_selections = selections.iter().map(|selection| {
11482 let head = selection.head();
11483 let tail = selection.tail();
11484 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11485 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11486 if start > end {
11487 end..start
11488 } else {
11489 start..end
11490 }
11491 });
11492
11493 for selected_multi_buffer_rows in buffer_rows_for_selections {
11494 let query_rows =
11495 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11496 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11497 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11498 // when the caret is just above or just below the deleted hunk.
11499 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11500 let related_to_selection = if allow_adjacent {
11501 hunk.associated_range.overlaps(&query_rows)
11502 || hunk.associated_range.start == query_rows.end
11503 || hunk.associated_range.end == query_rows.start
11504 } else {
11505 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11506 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11507 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11508 || selected_multi_buffer_rows.end == hunk.associated_range.start
11509 };
11510 if related_to_selection {
11511 if !processed_buffer_rows
11512 .entry(hunk.buffer_id)
11513 .or_default()
11514 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11515 {
11516 continue;
11517 }
11518 hunks.push(hunk);
11519 }
11520 }
11521 }
11522
11523 hunks
11524}
11525
11526pub trait CollaborationHub {
11527 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11528 fn user_participant_indices<'a>(
11529 &self,
11530 cx: &'a AppContext,
11531 ) -> &'a HashMap<u64, ParticipantIndex>;
11532 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11533}
11534
11535impl CollaborationHub for Model<Project> {
11536 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11537 self.read(cx).collaborators()
11538 }
11539
11540 fn user_participant_indices<'a>(
11541 &self,
11542 cx: &'a AppContext,
11543 ) -> &'a HashMap<u64, ParticipantIndex> {
11544 self.read(cx).user_store().read(cx).participant_indices()
11545 }
11546
11547 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11548 let this = self.read(cx);
11549 let user_ids = this.collaborators().values().map(|c| c.user_id);
11550 this.user_store().read_with(cx, |user_store, cx| {
11551 user_store.participant_names(user_ids, cx)
11552 })
11553 }
11554}
11555
11556pub trait CompletionProvider {
11557 fn completions(
11558 &self,
11559 buffer: &Model<Buffer>,
11560 buffer_position: text::Anchor,
11561 trigger: CompletionContext,
11562 cx: &mut ViewContext<Editor>,
11563 ) -> Task<Result<Vec<Completion>>>;
11564
11565 fn resolve_completions(
11566 &self,
11567 buffer: Model<Buffer>,
11568 completion_indices: Vec<usize>,
11569 completions: Arc<RwLock<Box<[Completion]>>>,
11570 cx: &mut ViewContext<Editor>,
11571 ) -> Task<Result<bool>>;
11572
11573 fn apply_additional_edits_for_completion(
11574 &self,
11575 buffer: Model<Buffer>,
11576 completion: Completion,
11577 push_to_history: bool,
11578 cx: &mut ViewContext<Editor>,
11579 ) -> Task<Result<Option<language::Transaction>>>;
11580
11581 fn is_completion_trigger(
11582 &self,
11583 buffer: &Model<Buffer>,
11584 position: language::Anchor,
11585 text: &str,
11586 trigger_in_words: bool,
11587 cx: &mut ViewContext<Editor>,
11588 ) -> bool;
11589}
11590
11591impl CompletionProvider for Model<Project> {
11592 fn completions(
11593 &self,
11594 buffer: &Model<Buffer>,
11595 buffer_position: text::Anchor,
11596 options: CompletionContext,
11597 cx: &mut ViewContext<Editor>,
11598 ) -> Task<Result<Vec<Completion>>> {
11599 self.update(cx, |project, cx| {
11600 project.completions(&buffer, buffer_position, options, cx)
11601 })
11602 }
11603
11604 fn resolve_completions(
11605 &self,
11606 buffer: Model<Buffer>,
11607 completion_indices: Vec<usize>,
11608 completions: Arc<RwLock<Box<[Completion]>>>,
11609 cx: &mut ViewContext<Editor>,
11610 ) -> Task<Result<bool>> {
11611 self.update(cx, |project, cx| {
11612 project.resolve_completions(buffer, completion_indices, completions, cx)
11613 })
11614 }
11615
11616 fn apply_additional_edits_for_completion(
11617 &self,
11618 buffer: Model<Buffer>,
11619 completion: Completion,
11620 push_to_history: bool,
11621 cx: &mut ViewContext<Editor>,
11622 ) -> Task<Result<Option<language::Transaction>>> {
11623 self.update(cx, |project, cx| {
11624 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11625 })
11626 }
11627
11628 fn is_completion_trigger(
11629 &self,
11630 buffer: &Model<Buffer>,
11631 position: language::Anchor,
11632 text: &str,
11633 trigger_in_words: bool,
11634 cx: &mut ViewContext<Editor>,
11635 ) -> bool {
11636 if !EditorSettings::get_global(cx).show_completions_on_input {
11637 return false;
11638 }
11639
11640 let mut chars = text.chars();
11641 let char = if let Some(char) = chars.next() {
11642 char
11643 } else {
11644 return false;
11645 };
11646 if chars.next().is_some() {
11647 return false;
11648 }
11649
11650 let buffer = buffer.read(cx);
11651 let scope = buffer.snapshot().language_scope_at(position);
11652 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11653 return true;
11654 }
11655
11656 buffer
11657 .completion_triggers()
11658 .iter()
11659 .any(|string| string == text)
11660 }
11661}
11662
11663fn inlay_hint_settings(
11664 location: Anchor,
11665 snapshot: &MultiBufferSnapshot,
11666 cx: &mut ViewContext<'_, Editor>,
11667) -> InlayHintSettings {
11668 let file = snapshot.file_at(location);
11669 let language = snapshot.language_at(location);
11670 let settings = all_language_settings(file, cx);
11671 settings
11672 .language(language.map(|l| l.name()).as_deref())
11673 .inlay_hints
11674}
11675
11676fn consume_contiguous_rows(
11677 contiguous_row_selections: &mut Vec<Selection<Point>>,
11678 selection: &Selection<Point>,
11679 display_map: &DisplaySnapshot,
11680 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11681) -> (MultiBufferRow, MultiBufferRow) {
11682 contiguous_row_selections.push(selection.clone());
11683 let start_row = MultiBufferRow(selection.start.row);
11684 let mut end_row = ending_row(selection, display_map);
11685
11686 while let Some(next_selection) = selections.peek() {
11687 if next_selection.start.row <= end_row.0 {
11688 end_row = ending_row(next_selection, display_map);
11689 contiguous_row_selections.push(selections.next().unwrap().clone());
11690 } else {
11691 break;
11692 }
11693 }
11694 (start_row, end_row)
11695}
11696
11697fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11698 if next_selection.end.column > 0 || next_selection.is_empty() {
11699 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11700 } else {
11701 MultiBufferRow(next_selection.end.row)
11702 }
11703}
11704
11705impl EditorSnapshot {
11706 pub fn remote_selections_in_range<'a>(
11707 &'a self,
11708 range: &'a Range<Anchor>,
11709 collaboration_hub: &dyn CollaborationHub,
11710 cx: &'a AppContext,
11711 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11712 let participant_names = collaboration_hub.user_names(cx);
11713 let participant_indices = collaboration_hub.user_participant_indices(cx);
11714 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11715 let collaborators_by_replica_id = collaborators_by_peer_id
11716 .iter()
11717 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11718 .collect::<HashMap<_, _>>();
11719 self.buffer_snapshot
11720 .remote_selections_in_range(range)
11721 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11722 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11723 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11724 let user_name = participant_names.get(&collaborator.user_id).cloned();
11725 Some(RemoteSelection {
11726 replica_id,
11727 selection,
11728 cursor_shape,
11729 line_mode,
11730 participant_index,
11731 peer_id: collaborator.peer_id,
11732 user_name,
11733 })
11734 })
11735 }
11736
11737 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11738 self.display_snapshot.buffer_snapshot.language_at(position)
11739 }
11740
11741 pub fn is_focused(&self) -> bool {
11742 self.is_focused
11743 }
11744
11745 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11746 self.placeholder_text.as_ref()
11747 }
11748
11749 pub fn scroll_position(&self) -> gpui::Point<f32> {
11750 self.scroll_anchor.scroll_position(&self.display_snapshot)
11751 }
11752
11753 pub fn gutter_dimensions(
11754 &self,
11755 font_id: FontId,
11756 font_size: Pixels,
11757 em_width: Pixels,
11758 max_line_number_width: Pixels,
11759 cx: &AppContext,
11760 ) -> GutterDimensions {
11761 if !self.show_gutter {
11762 return GutterDimensions::default();
11763 }
11764 let descent = cx.text_system().descent(font_id, font_size);
11765
11766 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11767 matches!(
11768 ProjectSettings::get_global(cx).git.git_gutter,
11769 Some(GitGutterSetting::TrackedFiles)
11770 )
11771 });
11772 let gutter_settings = EditorSettings::get_global(cx).gutter;
11773 let show_line_numbers = self
11774 .show_line_numbers
11775 .unwrap_or_else(|| gutter_settings.line_numbers);
11776 let line_gutter_width = if show_line_numbers {
11777 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11778 let min_width_for_number_on_gutter = em_width * 4.0;
11779 max_line_number_width.max(min_width_for_number_on_gutter)
11780 } else {
11781 0.0.into()
11782 };
11783
11784 let show_code_actions = self
11785 .show_code_actions
11786 .unwrap_or_else(|| gutter_settings.code_actions);
11787
11788 let git_blame_entries_width = self
11789 .render_git_blame_gutter
11790 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11791
11792 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11793 left_padding += if show_code_actions {
11794 em_width * 3.0
11795 } else if show_git_gutter && show_line_numbers {
11796 em_width * 2.0
11797 } else if show_git_gutter || show_line_numbers {
11798 em_width
11799 } else {
11800 px(0.)
11801 };
11802
11803 let right_padding = if gutter_settings.folds && show_line_numbers {
11804 em_width * 4.0
11805 } else if gutter_settings.folds {
11806 em_width * 3.0
11807 } else if show_line_numbers {
11808 em_width
11809 } else {
11810 px(0.)
11811 };
11812
11813 GutterDimensions {
11814 left_padding,
11815 right_padding,
11816 width: line_gutter_width + left_padding + right_padding,
11817 margin: -descent,
11818 git_blame_entries_width,
11819 }
11820 }
11821
11822 pub fn render_fold_toggle(
11823 &self,
11824 buffer_row: MultiBufferRow,
11825 row_contains_cursor: bool,
11826 editor: View<Editor>,
11827 cx: &mut WindowContext,
11828 ) -> Option<AnyElement> {
11829 let folded = self.is_line_folded(buffer_row);
11830
11831 if let Some(crease) = self
11832 .crease_snapshot
11833 .query_row(buffer_row, &self.buffer_snapshot)
11834 {
11835 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11836 if folded {
11837 editor.update(cx, |editor, cx| {
11838 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11839 });
11840 } else {
11841 editor.update(cx, |editor, cx| {
11842 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11843 });
11844 }
11845 });
11846
11847 Some((crease.render_toggle)(
11848 buffer_row,
11849 folded,
11850 toggle_callback,
11851 cx,
11852 ))
11853 } else if folded
11854 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11855 {
11856 Some(
11857 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
11858 .selected(folded)
11859 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
11860 if folded {
11861 this.unfold_at(&UnfoldAt { buffer_row }, cx);
11862 } else {
11863 this.fold_at(&FoldAt { buffer_row }, cx);
11864 }
11865 }))
11866 .into_any_element(),
11867 )
11868 } else {
11869 None
11870 }
11871 }
11872
11873 pub fn render_crease_trailer(
11874 &self,
11875 buffer_row: MultiBufferRow,
11876 cx: &mut WindowContext,
11877 ) -> Option<AnyElement> {
11878 let folded = self.is_line_folded(buffer_row);
11879 let crease = self
11880 .crease_snapshot
11881 .query_row(buffer_row, &self.buffer_snapshot)?;
11882 Some((crease.render_trailer)(buffer_row, folded, cx))
11883 }
11884}
11885
11886impl Deref for EditorSnapshot {
11887 type Target = DisplaySnapshot;
11888
11889 fn deref(&self) -> &Self::Target {
11890 &self.display_snapshot
11891 }
11892}
11893
11894#[derive(Clone, Debug, PartialEq, Eq)]
11895pub enum EditorEvent {
11896 InputIgnored {
11897 text: Arc<str>,
11898 },
11899 InputHandled {
11900 utf16_range_to_replace: Option<Range<isize>>,
11901 text: Arc<str>,
11902 },
11903 ExcerptsAdded {
11904 buffer: Model<Buffer>,
11905 predecessor: ExcerptId,
11906 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11907 },
11908 ExcerptsRemoved {
11909 ids: Vec<ExcerptId>,
11910 },
11911 ExcerptsEdited {
11912 ids: Vec<ExcerptId>,
11913 },
11914 ExcerptsExpanded {
11915 ids: Vec<ExcerptId>,
11916 },
11917 BufferEdited,
11918 Edited {
11919 transaction_id: clock::Lamport,
11920 },
11921 Reparsed(BufferId),
11922 Focused,
11923 Blurred,
11924 DirtyChanged,
11925 Saved,
11926 TitleChanged,
11927 DiffBaseChanged,
11928 SelectionsChanged {
11929 local: bool,
11930 },
11931 ScrollPositionChanged {
11932 local: bool,
11933 autoscroll: bool,
11934 },
11935 Closed,
11936 TransactionUndone {
11937 transaction_id: clock::Lamport,
11938 },
11939 TransactionBegun {
11940 transaction_id: clock::Lamport,
11941 },
11942}
11943
11944impl EventEmitter<EditorEvent> for Editor {}
11945
11946impl FocusableView for Editor {
11947 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11948 self.focus_handle.clone()
11949 }
11950}
11951
11952impl Render for Editor {
11953 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11954 let settings = ThemeSettings::get_global(cx);
11955
11956 let text_style = match self.mode {
11957 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11958 color: cx.theme().colors().editor_foreground,
11959 font_family: settings.ui_font.family.clone(),
11960 font_features: settings.ui_font.features.clone(),
11961 font_size: rems(0.875).into(),
11962 font_weight: settings.ui_font.weight,
11963 font_style: FontStyle::Normal,
11964 line_height: relative(settings.buffer_line_height.value()),
11965 background_color: None,
11966 underline: None,
11967 strikethrough: None,
11968 white_space: WhiteSpace::Normal,
11969 },
11970 EditorMode::Full => TextStyle {
11971 color: cx.theme().colors().editor_foreground,
11972 font_family: settings.buffer_font.family.clone(),
11973 font_features: settings.buffer_font.features.clone(),
11974 font_size: settings.buffer_font_size(cx).into(),
11975 font_weight: settings.buffer_font.weight,
11976 font_style: FontStyle::Normal,
11977 line_height: relative(settings.buffer_line_height.value()),
11978 background_color: None,
11979 underline: None,
11980 strikethrough: None,
11981 white_space: WhiteSpace::Normal,
11982 },
11983 };
11984
11985 let background = match self.mode {
11986 EditorMode::SingleLine => cx.theme().system().transparent,
11987 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11988 EditorMode::Full => cx.theme().colors().editor_background,
11989 };
11990
11991 EditorElement::new(
11992 cx.view(),
11993 EditorStyle {
11994 background,
11995 local_player: cx.theme().players().local(),
11996 text: text_style,
11997 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11998 syntax: cx.theme().syntax().clone(),
11999 status: cx.theme().status().clone(),
12000 inlay_hints_style: HighlightStyle {
12001 color: Some(cx.theme().status().hint),
12002 ..HighlightStyle::default()
12003 },
12004 suggestions_style: HighlightStyle {
12005 color: Some(cx.theme().status().predictive),
12006 ..HighlightStyle::default()
12007 },
12008 },
12009 )
12010 }
12011}
12012
12013impl ViewInputHandler for Editor {
12014 fn text_for_range(
12015 &mut self,
12016 range_utf16: Range<usize>,
12017 cx: &mut ViewContext<Self>,
12018 ) -> Option<String> {
12019 Some(
12020 self.buffer
12021 .read(cx)
12022 .read(cx)
12023 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12024 .collect(),
12025 )
12026 }
12027
12028 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12029 // Prevent the IME menu from appearing when holding down an alphabetic key
12030 // while input is disabled.
12031 if !self.input_enabled {
12032 return None;
12033 }
12034
12035 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12036 Some(range.start.0..range.end.0)
12037 }
12038
12039 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12040 let snapshot = self.buffer.read(cx).read(cx);
12041 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12042 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12043 }
12044
12045 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12046 self.clear_highlights::<InputComposition>(cx);
12047 self.ime_transaction.take();
12048 }
12049
12050 fn replace_text_in_range(
12051 &mut self,
12052 range_utf16: Option<Range<usize>>,
12053 text: &str,
12054 cx: &mut ViewContext<Self>,
12055 ) {
12056 if !self.input_enabled {
12057 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12058 return;
12059 }
12060
12061 self.transact(cx, |this, cx| {
12062 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12063 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12064 Some(this.selection_replacement_ranges(range_utf16, cx))
12065 } else {
12066 this.marked_text_ranges(cx)
12067 };
12068
12069 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12070 let newest_selection_id = this.selections.newest_anchor().id;
12071 this.selections
12072 .all::<OffsetUtf16>(cx)
12073 .iter()
12074 .zip(ranges_to_replace.iter())
12075 .find_map(|(selection, range)| {
12076 if selection.id == newest_selection_id {
12077 Some(
12078 (range.start.0 as isize - selection.head().0 as isize)
12079 ..(range.end.0 as isize - selection.head().0 as isize),
12080 )
12081 } else {
12082 None
12083 }
12084 })
12085 });
12086
12087 cx.emit(EditorEvent::InputHandled {
12088 utf16_range_to_replace: range_to_replace,
12089 text: text.into(),
12090 });
12091
12092 if let Some(new_selected_ranges) = new_selected_ranges {
12093 this.change_selections(None, cx, |selections| {
12094 selections.select_ranges(new_selected_ranges)
12095 });
12096 this.backspace(&Default::default(), cx);
12097 }
12098
12099 this.handle_input(text, cx);
12100 });
12101
12102 if let Some(transaction) = self.ime_transaction {
12103 self.buffer.update(cx, |buffer, cx| {
12104 buffer.group_until_transaction(transaction, cx);
12105 });
12106 }
12107
12108 self.unmark_text(cx);
12109 }
12110
12111 fn replace_and_mark_text_in_range(
12112 &mut self,
12113 range_utf16: Option<Range<usize>>,
12114 text: &str,
12115 new_selected_range_utf16: Option<Range<usize>>,
12116 cx: &mut ViewContext<Self>,
12117 ) {
12118 if !self.input_enabled {
12119 return;
12120 }
12121
12122 let transaction = self.transact(cx, |this, cx| {
12123 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12124 let snapshot = this.buffer.read(cx).read(cx);
12125 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12126 for marked_range in &mut marked_ranges {
12127 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12128 marked_range.start.0 += relative_range_utf16.start;
12129 marked_range.start =
12130 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12131 marked_range.end =
12132 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12133 }
12134 }
12135 Some(marked_ranges)
12136 } else if let Some(range_utf16) = range_utf16 {
12137 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12138 Some(this.selection_replacement_ranges(range_utf16, cx))
12139 } else {
12140 None
12141 };
12142
12143 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12144 let newest_selection_id = this.selections.newest_anchor().id;
12145 this.selections
12146 .all::<OffsetUtf16>(cx)
12147 .iter()
12148 .zip(ranges_to_replace.iter())
12149 .find_map(|(selection, range)| {
12150 if selection.id == newest_selection_id {
12151 Some(
12152 (range.start.0 as isize - selection.head().0 as isize)
12153 ..(range.end.0 as isize - selection.head().0 as isize),
12154 )
12155 } else {
12156 None
12157 }
12158 })
12159 });
12160
12161 cx.emit(EditorEvent::InputHandled {
12162 utf16_range_to_replace: range_to_replace,
12163 text: text.into(),
12164 });
12165
12166 if let Some(ranges) = ranges_to_replace {
12167 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12168 }
12169
12170 let marked_ranges = {
12171 let snapshot = this.buffer.read(cx).read(cx);
12172 this.selections
12173 .disjoint_anchors()
12174 .iter()
12175 .map(|selection| {
12176 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12177 })
12178 .collect::<Vec<_>>()
12179 };
12180
12181 if text.is_empty() {
12182 this.unmark_text(cx);
12183 } else {
12184 this.highlight_text::<InputComposition>(
12185 marked_ranges.clone(),
12186 HighlightStyle {
12187 underline: Some(UnderlineStyle {
12188 thickness: px(1.),
12189 color: None,
12190 wavy: false,
12191 }),
12192 ..Default::default()
12193 },
12194 cx,
12195 );
12196 }
12197
12198 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12199 let use_autoclose = this.use_autoclose;
12200 this.set_use_autoclose(false);
12201 this.handle_input(text, cx);
12202 this.set_use_autoclose(use_autoclose);
12203
12204 if let Some(new_selected_range) = new_selected_range_utf16 {
12205 let snapshot = this.buffer.read(cx).read(cx);
12206 let new_selected_ranges = marked_ranges
12207 .into_iter()
12208 .map(|marked_range| {
12209 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12210 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12211 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12212 snapshot.clip_offset_utf16(new_start, Bias::Left)
12213 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12214 })
12215 .collect::<Vec<_>>();
12216
12217 drop(snapshot);
12218 this.change_selections(None, cx, |selections| {
12219 selections.select_ranges(new_selected_ranges)
12220 });
12221 }
12222 });
12223
12224 self.ime_transaction = self.ime_transaction.or(transaction);
12225 if let Some(transaction) = self.ime_transaction {
12226 self.buffer.update(cx, |buffer, cx| {
12227 buffer.group_until_transaction(transaction, cx);
12228 });
12229 }
12230
12231 if self.text_highlights::<InputComposition>(cx).is_none() {
12232 self.ime_transaction.take();
12233 }
12234 }
12235
12236 fn bounds_for_range(
12237 &mut self,
12238 range_utf16: Range<usize>,
12239 element_bounds: gpui::Bounds<Pixels>,
12240 cx: &mut ViewContext<Self>,
12241 ) -> Option<gpui::Bounds<Pixels>> {
12242 let text_layout_details = self.text_layout_details(cx);
12243 let style = &text_layout_details.editor_style;
12244 let font_id = cx.text_system().resolve_font(&style.text.font());
12245 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12246 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12247 let em_width = cx
12248 .text_system()
12249 .typographic_bounds(font_id, font_size, 'm')
12250 .unwrap()
12251 .size
12252 .width;
12253
12254 let snapshot = self.snapshot(cx);
12255 let scroll_position = snapshot.scroll_position();
12256 let scroll_left = scroll_position.x * em_width;
12257
12258 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12259 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12260 + self.gutter_dimensions.width;
12261 let y = line_height * (start.row().as_f32() - scroll_position.y);
12262
12263 Some(Bounds {
12264 origin: element_bounds.origin + point(x, y),
12265 size: size(em_width, line_height),
12266 })
12267 }
12268}
12269
12270trait SelectionExt {
12271 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12272 fn spanned_rows(
12273 &self,
12274 include_end_if_at_line_start: bool,
12275 map: &DisplaySnapshot,
12276 ) -> Range<MultiBufferRow>;
12277}
12278
12279impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12280 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12281 let start = self
12282 .start
12283 .to_point(&map.buffer_snapshot)
12284 .to_display_point(map);
12285 let end = self
12286 .end
12287 .to_point(&map.buffer_snapshot)
12288 .to_display_point(map);
12289 if self.reversed {
12290 end..start
12291 } else {
12292 start..end
12293 }
12294 }
12295
12296 fn spanned_rows(
12297 &self,
12298 include_end_if_at_line_start: bool,
12299 map: &DisplaySnapshot,
12300 ) -> Range<MultiBufferRow> {
12301 let start = self.start.to_point(&map.buffer_snapshot);
12302 let mut end = self.end.to_point(&map.buffer_snapshot);
12303 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12304 end.row -= 1;
12305 }
12306
12307 let buffer_start = map.prev_line_boundary(start).0;
12308 let buffer_end = map.next_line_boundary(end).0;
12309 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12310 }
12311}
12312
12313impl<T: InvalidationRegion> InvalidationStack<T> {
12314 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12315 where
12316 S: Clone + ToOffset,
12317 {
12318 while let Some(region) = self.last() {
12319 let all_selections_inside_invalidation_ranges =
12320 if selections.len() == region.ranges().len() {
12321 selections
12322 .iter()
12323 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12324 .all(|(selection, invalidation_range)| {
12325 let head = selection.head().to_offset(buffer);
12326 invalidation_range.start <= head && invalidation_range.end >= head
12327 })
12328 } else {
12329 false
12330 };
12331
12332 if all_selections_inside_invalidation_ranges {
12333 break;
12334 } else {
12335 self.pop();
12336 }
12337 }
12338 }
12339}
12340
12341impl<T> Default for InvalidationStack<T> {
12342 fn default() -> Self {
12343 Self(Default::default())
12344 }
12345}
12346
12347impl<T> Deref for InvalidationStack<T> {
12348 type Target = Vec<T>;
12349
12350 fn deref(&self) -> &Self::Target {
12351 &self.0
12352 }
12353}
12354
12355impl<T> DerefMut for InvalidationStack<T> {
12356 fn deref_mut(&mut self) -> &mut Self::Target {
12357 &mut self.0
12358 }
12359}
12360
12361impl InvalidationRegion for SnippetState {
12362 fn ranges(&self) -> &[Range<Anchor>] {
12363 &self.ranges[self.active_index]
12364 }
12365}
12366
12367pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
12368 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
12369
12370 Box::new(move |cx: &mut BlockContext| {
12371 let group_id: SharedString = cx.block_id.to_string().into();
12372
12373 let mut text_style = cx.text_style().clone();
12374 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
12375 let theme_settings = ThemeSettings::get_global(cx);
12376 text_style.font_family = theme_settings.buffer_font.family.clone();
12377 text_style.font_style = theme_settings.buffer_font.style;
12378 text_style.font_features = theme_settings.buffer_font.features.clone();
12379 text_style.font_weight = theme_settings.buffer_font.weight;
12380
12381 let multi_line_diagnostic = diagnostic.message.contains('\n');
12382
12383 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
12384 if multi_line_diagnostic {
12385 v_flex()
12386 } else {
12387 h_flex()
12388 }
12389 .children(diagnostic.is_primary.then(|| {
12390 IconButton::new(("close-block", block_id), IconName::XCircle)
12391 .icon_color(Color::Muted)
12392 .size(ButtonSize::Compact)
12393 .style(ButtonStyle::Transparent)
12394 .visible_on_hover(group_id.clone())
12395 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12396 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12397 }))
12398 .child(
12399 IconButton::new(("copy-block", block_id), IconName::Copy)
12400 .icon_color(Color::Muted)
12401 .size(ButtonSize::Compact)
12402 .style(ButtonStyle::Transparent)
12403 .visible_on_hover(group_id.clone())
12404 .on_click({
12405 let message = diagnostic.message.clone();
12406 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12407 })
12408 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12409 )
12410 };
12411
12412 let icon_size = buttons(&diagnostic, cx.block_id)
12413 .into_any_element()
12414 .layout_as_root(AvailableSpace::min_size(), cx);
12415
12416 h_flex()
12417 .id(cx.block_id)
12418 .group(group_id.clone())
12419 .relative()
12420 .size_full()
12421 .pl(cx.gutter_dimensions.width)
12422 .w(cx.max_width + cx.gutter_dimensions.width)
12423 .child(
12424 div()
12425 .flex()
12426 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12427 .flex_shrink(),
12428 )
12429 .child(buttons(&diagnostic, cx.block_id))
12430 .child(div().flex().flex_shrink_0().child(
12431 StyledText::new(text_without_backticks.clone()).with_highlights(
12432 &text_style,
12433 code_ranges.iter().map(|range| {
12434 (
12435 range.clone(),
12436 HighlightStyle {
12437 font_weight: Some(FontWeight::BOLD),
12438 ..Default::default()
12439 },
12440 )
12441 }),
12442 ),
12443 ))
12444 .into_any_element()
12445 })
12446}
12447
12448pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
12449 let mut text_without_backticks = String::new();
12450 let mut code_ranges = Vec::new();
12451
12452 if let Some(source) = &diagnostic.source {
12453 text_without_backticks.push_str(&source);
12454 code_ranges.push(0..source.len());
12455 text_without_backticks.push_str(": ");
12456 }
12457
12458 let mut prev_offset = 0;
12459 let mut in_code_block = false;
12460 for (ix, _) in diagnostic
12461 .message
12462 .match_indices('`')
12463 .chain([(diagnostic.message.len(), "")])
12464 {
12465 let prev_len = text_without_backticks.len();
12466 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
12467 prev_offset = ix + 1;
12468 if in_code_block {
12469 code_ranges.push(prev_len..text_without_backticks.len());
12470 in_code_block = false;
12471 } else {
12472 in_code_block = true;
12473 }
12474 }
12475
12476 (text_without_backticks.into(), code_ranges)
12477}
12478
12479fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
12480 match (severity, valid) {
12481 (DiagnosticSeverity::ERROR, true) => colors.error,
12482 (DiagnosticSeverity::ERROR, false) => colors.error,
12483 (DiagnosticSeverity::WARNING, true) => colors.warning,
12484 (DiagnosticSeverity::WARNING, false) => colors.warning,
12485 (DiagnosticSeverity::INFORMATION, true) => colors.info,
12486 (DiagnosticSeverity::INFORMATION, false) => colors.info,
12487 (DiagnosticSeverity::HINT, true) => colors.info,
12488 (DiagnosticSeverity::HINT, false) => colors.info,
12489 _ => colors.ignored,
12490 }
12491}
12492
12493pub fn styled_runs_for_code_label<'a>(
12494 label: &'a CodeLabel,
12495 syntax_theme: &'a theme::SyntaxTheme,
12496) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12497 let fade_out = HighlightStyle {
12498 fade_out: Some(0.35),
12499 ..Default::default()
12500 };
12501
12502 let mut prev_end = label.filter_range.end;
12503 label
12504 .runs
12505 .iter()
12506 .enumerate()
12507 .flat_map(move |(ix, (range, highlight_id))| {
12508 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12509 style
12510 } else {
12511 return Default::default();
12512 };
12513 let mut muted_style = style;
12514 muted_style.highlight(fade_out);
12515
12516 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12517 if range.start >= label.filter_range.end {
12518 if range.start > prev_end {
12519 runs.push((prev_end..range.start, fade_out));
12520 }
12521 runs.push((range.clone(), muted_style));
12522 } else if range.end <= label.filter_range.end {
12523 runs.push((range.clone(), style));
12524 } else {
12525 runs.push((range.start..label.filter_range.end, style));
12526 runs.push((label.filter_range.end..range.end, muted_style));
12527 }
12528 prev_end = cmp::max(prev_end, range.end);
12529
12530 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12531 runs.push((prev_end..label.text.len(), fade_out));
12532 }
12533
12534 runs
12535 })
12536}
12537
12538pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12539 let mut prev_index = 0;
12540 let mut prev_codepoint: Option<char> = None;
12541 text.char_indices()
12542 .chain([(text.len(), '\0')])
12543 .filter_map(move |(index, codepoint)| {
12544 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12545 let is_boundary = index == text.len()
12546 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12547 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12548 if is_boundary {
12549 let chunk = &text[prev_index..index];
12550 prev_index = index;
12551 Some(chunk)
12552 } else {
12553 None
12554 }
12555 })
12556}
12557
12558trait RangeToAnchorExt {
12559 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12560}
12561
12562impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12563 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12564 let start_offset = self.start.to_offset(snapshot);
12565 let end_offset = self.end.to_offset(snapshot);
12566 if start_offset == end_offset {
12567 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12568 } else {
12569 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12570 }
12571 }
12572}
12573
12574pub trait RowExt {
12575 fn as_f32(&self) -> f32;
12576
12577 fn next_row(&self) -> Self;
12578
12579 fn previous_row(&self) -> Self;
12580
12581 fn minus(&self, other: Self) -> u32;
12582}
12583
12584impl RowExt for DisplayRow {
12585 fn as_f32(&self) -> f32 {
12586 self.0 as f32
12587 }
12588
12589 fn next_row(&self) -> Self {
12590 Self(self.0 + 1)
12591 }
12592
12593 fn previous_row(&self) -> Self {
12594 Self(self.0.saturating_sub(1))
12595 }
12596
12597 fn minus(&self, other: Self) -> u32 {
12598 self.0 - other.0
12599 }
12600}
12601
12602impl RowExt for MultiBufferRow {
12603 fn as_f32(&self) -> f32 {
12604 self.0 as f32
12605 }
12606
12607 fn next_row(&self) -> Self {
12608 Self(self.0 + 1)
12609 }
12610
12611 fn previous_row(&self) -> Self {
12612 Self(self.0.saturating_sub(1))
12613 }
12614
12615 fn minus(&self, other: Self) -> u32 {
12616 self.0 - other.0
12617 }
12618}
12619
12620trait RowRangeExt {
12621 type Row;
12622
12623 fn len(&self) -> usize;
12624
12625 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12626}
12627
12628impl RowRangeExt for Range<MultiBufferRow> {
12629 type Row = MultiBufferRow;
12630
12631 fn len(&self) -> usize {
12632 (self.end.0 - self.start.0) as usize
12633 }
12634
12635 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12636 (self.start.0..self.end.0).map(MultiBufferRow)
12637 }
12638}
12639
12640impl RowRangeExt for Range<DisplayRow> {
12641 type Row = DisplayRow;
12642
12643 fn len(&self) -> usize {
12644 (self.end.0 - self.start.0) as usize
12645 }
12646
12647 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12648 (self.start.0..self.end.0).map(DisplayRow)
12649 }
12650}
12651
12652fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12653 if hunk.diff_base_byte_range.is_empty() {
12654 DiffHunkStatus::Added
12655 } else if hunk.associated_range.is_empty() {
12656 DiffHunkStatus::Removed
12657 } else {
12658 DiffHunkStatus::Modified
12659 }
12660}