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 behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod debounced_delay;
19pub mod display_map;
20mod editor_settings;
21mod editor_settings_controls;
22mod element;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27mod hunk_diff;
28mod indent_guides;
29mod inlay_hint_cache;
30mod inline_completion_provider;
31pub mod items;
32mod linked_editing_ranges;
33mod mouse_context_menu;
34pub mod movement;
35mod persistence;
36mod rust_analyzer_ext;
37pub mod scroll;
38mod selections_collection;
39pub mod tasks;
40
41#[cfg(test)]
42mod editor_tests;
43mod signature_help;
44#[cfg(any(test, feature = "test-support"))]
45pub mod test;
46
47use ::git::diff::{DiffHunk, DiffHunkStatus};
48use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
49pub(crate) use actions::*;
50use aho_corasick::AhoCorasick;
51use anyhow::{anyhow, Context as _, Result};
52use blink_manager::BlinkManager;
53use client::{Collaborator, ParticipantIndex};
54use clock::ReplicaId;
55use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
56use convert_case::{Case, Casing};
57use debounced_delay::DebouncedDelay;
58use display_map::*;
59pub use display_map::{DisplayPoint, FoldPlaceholder};
60pub use editor_settings::{CurrentLineHighlight, EditorSettings};
61pub use editor_settings_controls::*;
62use element::LineWithInvisibles;
63pub use element::{
64 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
65};
66use futures::FutureExt;
67use fuzzy::{StringMatch, StringMatchCandidate};
68use git::blame::GitBlame;
69use git::diff_hunk_to_display;
70use gpui::{
71 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
72 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
73 Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle, FocusOutEvent,
74 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
75 ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
76 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle, UnderlineStyle,
77 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
78 WeakView, WindowContext,
79};
80use highlight_matching_bracket::refresh_matching_bracket_highlights;
81use hover_popover::{hide_hover, HoverState};
82use hunk_diff::ExpandedHunks;
83pub(crate) use hunk_diff::HoveredHunk;
84use indent_guides::ActiveIndentGuidesState;
85use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
86pub use inline_completion_provider::*;
87pub use items::MAX_TAB_TITLE_LEN;
88use itertools::Itertools;
89use language::{
90 char_kind,
91 language_settings::{self, all_language_settings, InlayHintSettings},
92 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
93 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
94 Point, Selection, SelectionGoal, TransactionId,
95};
96use language::{point_to_lsp, BufferRow, Runnable, RunnableRange};
97use linked_editing_ranges::refresh_linked_ranges;
98use task::{ResolvedTask, TaskTemplate, TaskVariables};
99
100use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
101pub use lsp::CompletionContext;
102use lsp::{
103 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
104 LanguageServerId,
105};
106use mouse_context_menu::MouseContextMenu;
107use movement::TextLayoutDetails;
108pub use multi_buffer::{
109 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
110 ToPoint,
111};
112use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
113use ordered_float::OrderedFloat;
114use parking_lot::{Mutex, RwLock};
115use project::project_settings::{GitGutterSetting, ProjectSettings};
116use project::{
117 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
118 ProjectTransaction, TaskSourceKind, WorktreeId,
119};
120use rand::prelude::*;
121use rpc::{proto::*, ErrorExt};
122use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
123use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
124use serde::{Deserialize, Serialize};
125use settings::{update_settings_file, Settings, SettingsStore};
126use smallvec::SmallVec;
127use snippet::Snippet;
128use std::{
129 any::TypeId,
130 borrow::Cow,
131 cell::RefCell,
132 cmp::{self, Ordering, Reverse},
133 mem,
134 num::NonZeroU32,
135 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
136 path::{Path, PathBuf},
137 rc::Rc,
138 sync::Arc,
139 time::{Duration, Instant},
140};
141pub use sum_tree::Bias;
142use sum_tree::TreeMap;
143use text::{BufferId, OffsetUtf16, Rope};
144use theme::{
145 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
146 ThemeColors, ThemeSettings,
147};
148use ui::{
149 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
150 ListItem, Popover, Tooltip,
151};
152use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
153use workspace::item::{ItemHandle, PreviewTabsSettings};
154use workspace::notifications::{DetachAndPromptErr, NotificationId};
155use workspace::{
156 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
157};
158use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
159
160use crate::hover_links::find_url;
161use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
162
163pub const FILE_HEADER_HEIGHT: u8 = 1;
164pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u8 = 1;
165pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u8 = 1;
166pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
167const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
168const MAX_LINE_LEN: usize = 1024;
169const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
170const MAX_SELECTION_HISTORY_LEN: usize = 1024;
171pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
172#[doc(hidden)]
173pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
174#[doc(hidden)]
175pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
176
177pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
178
179pub fn render_parsed_markdown(
180 element_id: impl Into<ElementId>,
181 parsed: &language::ParsedMarkdown,
182 editor_style: &EditorStyle,
183 workspace: Option<WeakView<Workspace>>,
184 cx: &mut WindowContext,
185) -> InteractiveText {
186 let code_span_background_color = cx
187 .theme()
188 .colors()
189 .editor_document_highlight_read_background;
190
191 let highlights = gpui::combine_highlights(
192 parsed.highlights.iter().filter_map(|(range, highlight)| {
193 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
194 Some((range.clone(), highlight))
195 }),
196 parsed
197 .regions
198 .iter()
199 .zip(&parsed.region_ranges)
200 .filter_map(|(region, range)| {
201 if region.code {
202 Some((
203 range.clone(),
204 HighlightStyle {
205 background_color: Some(code_span_background_color),
206 ..Default::default()
207 },
208 ))
209 } else {
210 None
211 }
212 }),
213 );
214
215 let mut links = Vec::new();
216 let mut link_ranges = Vec::new();
217 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
218 if let Some(link) = region.link.clone() {
219 links.push(link);
220 link_ranges.push(range.clone());
221 }
222 }
223
224 InteractiveText::new(
225 element_id,
226 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
227 )
228 .on_click(link_ranges, move |clicked_range_ix, cx| {
229 match &links[clicked_range_ix] {
230 markdown::Link::Web { url } => cx.open_url(url),
231 markdown::Link::Path { path } => {
232 if let Some(workspace) = &workspace {
233 _ = workspace.update(cx, |workspace, cx| {
234 workspace.open_abs_path(path.clone(), false, cx).detach();
235 });
236 }
237 }
238 }
239 })
240}
241
242#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
243pub(crate) enum InlayId {
244 Suggestion(usize),
245 Hint(usize),
246}
247
248impl InlayId {
249 fn id(&self) -> usize {
250 match self {
251 Self::Suggestion(id) => *id,
252 Self::Hint(id) => *id,
253 }
254 }
255}
256
257enum DiffRowHighlight {}
258enum DocumentHighlightRead {}
259enum DocumentHighlightWrite {}
260enum InputComposition {}
261
262#[derive(Copy, Clone, PartialEq, Eq)]
263pub enum Direction {
264 Prev,
265 Next,
266}
267
268pub fn init_settings(cx: &mut AppContext) {
269 EditorSettings::register(cx);
270}
271
272pub fn init(cx: &mut AppContext) {
273 init_settings(cx);
274
275 workspace::register_project_item::<Editor>(cx);
276 workspace::FollowableViewRegistry::register::<Editor>(cx);
277 workspace::register_serializable_item::<Editor>(cx);
278
279 cx.observe_new_views(
280 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
281 workspace.register_action(Editor::new_file);
282 workspace.register_action(Editor::new_file_in_direction);
283 },
284 )
285 .detach();
286
287 cx.on_action(move |_: &workspace::NewFile, 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 cx.on_action(move |_: &workspace::NewWindow, cx| {
297 let app_state = workspace::AppState::global(cx);
298 if let Some(app_state) = app_state.upgrade() {
299 workspace::open_new(app_state, cx, |workspace, cx| {
300 Editor::new_file(workspace, &Default::default(), cx)
301 })
302 .detach();
303 }
304 });
305}
306
307pub struct SearchWithinRange;
308
309trait InvalidationRegion {
310 fn ranges(&self) -> &[Range<Anchor>];
311}
312
313#[derive(Clone, Debug, PartialEq)]
314pub enum SelectPhase {
315 Begin {
316 position: DisplayPoint,
317 add: bool,
318 click_count: usize,
319 },
320 BeginColumnar {
321 position: DisplayPoint,
322 reset: bool,
323 goal_column: u32,
324 },
325 Extend {
326 position: DisplayPoint,
327 click_count: usize,
328 },
329 Update {
330 position: DisplayPoint,
331 goal_column: u32,
332 scroll_delta: gpui::Point<f32>,
333 },
334 End,
335}
336
337#[derive(Clone, Debug)]
338pub enum SelectMode {
339 Character,
340 Word(Range<Anchor>),
341 Line(Range<Anchor>),
342 All,
343}
344
345#[derive(Copy, Clone, PartialEq, Eq, Debug)]
346pub enum EditorMode {
347 SingleLine { auto_width: bool },
348 AutoHeight { max_lines: usize },
349 Full,
350}
351
352#[derive(Clone, Debug)]
353pub enum SoftWrap {
354 None,
355 PreferLine,
356 EditorWidth,
357 Column(u32),
358}
359
360#[derive(Clone)]
361pub struct EditorStyle {
362 pub background: Hsla,
363 pub local_player: PlayerColor,
364 pub text: TextStyle,
365 pub scrollbar_width: Pixels,
366 pub syntax: Arc<SyntaxTheme>,
367 pub status: StatusColors,
368 pub inlay_hints_style: HighlightStyle,
369 pub suggestions_style: HighlightStyle,
370}
371
372impl Default for EditorStyle {
373 fn default() -> Self {
374 Self {
375 background: Hsla::default(),
376 local_player: PlayerColor::default(),
377 text: TextStyle::default(),
378 scrollbar_width: Pixels::default(),
379 syntax: Default::default(),
380 // HACK: Status colors don't have a real default.
381 // We should look into removing the status colors from the editor
382 // style and retrieve them directly from the theme.
383 status: StatusColors::dark(),
384 inlay_hints_style: HighlightStyle::default(),
385 suggestions_style: HighlightStyle::default(),
386 }
387 }
388}
389
390type CompletionId = usize;
391
392#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
393struct EditorActionId(usize);
394
395impl EditorActionId {
396 pub fn post_inc(&mut self) -> Self {
397 let answer = self.0;
398
399 *self = Self(answer + 1);
400
401 Self(answer)
402 }
403}
404
405// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
406// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
407
408type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
409type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
410
411#[derive(Default)]
412struct ScrollbarMarkerState {
413 scrollbar_size: Size<Pixels>,
414 dirty: bool,
415 markers: Arc<[PaintQuad]>,
416 pending_refresh: Option<Task<Result<()>>>,
417}
418
419impl ScrollbarMarkerState {
420 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
421 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
422 }
423}
424
425#[derive(Clone, Debug)]
426struct RunnableTasks {
427 templates: Vec<(TaskSourceKind, TaskTemplate)>,
428 offset: MultiBufferOffset,
429 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
430 column: u32,
431 // Values of all named captures, including those starting with '_'
432 extra_variables: HashMap<String, String>,
433 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
434 context_range: Range<BufferOffset>,
435}
436
437#[derive(Clone)]
438struct ResolvedTasks {
439 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
440 position: Anchor,
441}
442#[derive(Copy, Clone, Debug)]
443struct MultiBufferOffset(usize);
444#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
445struct BufferOffset(usize);
446/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
447///
448/// See the [module level documentation](self) for more information.
449pub struct Editor {
450 focus_handle: FocusHandle,
451 last_focused_descendant: Option<WeakFocusHandle>,
452 /// The text buffer being edited
453 buffer: Model<MultiBuffer>,
454 /// Map of how text in the buffer should be displayed.
455 /// Handles soft wraps, folds, fake inlay text insertions, etc.
456 pub display_map: Model<DisplayMap>,
457 pub selections: SelectionsCollection,
458 pub scroll_manager: ScrollManager,
459 /// When inline assist editors are linked, they all render cursors because
460 /// typing enters text into each of them, even the ones that aren't focused.
461 pub(crate) show_cursor_when_unfocused: bool,
462 columnar_selection_tail: Option<Anchor>,
463 add_selections_state: Option<AddSelectionsState>,
464 select_next_state: Option<SelectNextState>,
465 select_prev_state: Option<SelectNextState>,
466 selection_history: SelectionHistory,
467 autoclose_regions: Vec<AutocloseRegion>,
468 snippet_stack: InvalidationStack<SnippetState>,
469 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
470 ime_transaction: Option<TransactionId>,
471 active_diagnostics: Option<ActiveDiagnosticGroup>,
472 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
473 project: Option<Model<Project>>,
474 completion_provider: Option<Box<dyn CompletionProvider>>,
475 collaboration_hub: Option<Box<dyn CollaborationHub>>,
476 blink_manager: Model<BlinkManager>,
477 show_cursor_names: bool,
478 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
479 pub show_local_selections: bool,
480 mode: EditorMode,
481 show_breadcrumbs: bool,
482 show_gutter: bool,
483 redact_all: bool,
484 show_line_numbers: Option<bool>,
485 show_git_diff_gutter: Option<bool>,
486 show_code_actions: Option<bool>,
487 show_runnables: Option<bool>,
488 show_wrap_guides: Option<bool>,
489 show_indent_guides: Option<bool>,
490 placeholder_text: Option<Arc<str>>,
491 highlight_order: usize,
492 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
493 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
494 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
495 scrollbar_marker_state: ScrollbarMarkerState,
496 active_indent_guides_state: ActiveIndentGuidesState,
497 nav_history: Option<ItemNavHistory>,
498 context_menu: RwLock<Option<ContextMenu>>,
499 mouse_context_menu: Option<MouseContextMenu>,
500 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
501 signature_help_state: SignatureHelpState,
502 auto_signature_help: Option<bool>,
503 find_all_references_task_sources: Vec<Anchor>,
504 next_completion_id: CompletionId,
505 completion_documentation_pre_resolve_debounce: DebouncedDelay,
506 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
507 code_actions_task: Option<Task<()>>,
508 document_highlights_task: Option<Task<()>>,
509 linked_editing_range_task: Option<Task<Option<()>>>,
510 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
511 pending_rename: Option<RenameState>,
512 searchable: bool,
513 cursor_shape: CursorShape,
514 current_line_highlight: Option<CurrentLineHighlight>,
515 collapse_matches: bool,
516 autoindent_mode: Option<AutoindentMode>,
517 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
518 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
519 input_enabled: bool,
520 use_modal_editing: bool,
521 read_only: bool,
522 leader_peer_id: Option<PeerId>,
523 remote_id: Option<ViewId>,
524 hover_state: HoverState,
525 gutter_hovered: bool,
526 hovered_link_state: Option<HoveredLinkState>,
527 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
528 active_inline_completion: Option<(Inlay, Option<Range<Anchor>>)>,
529 show_inline_completions: bool,
530 inlay_hint_cache: InlayHintCache,
531 expanded_hunks: ExpandedHunks,
532 next_inlay_id: usize,
533 _subscriptions: Vec<Subscription>,
534 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
535 gutter_dimensions: GutterDimensions,
536 pub vim_replace_map: HashMap<Range<usize>, String>,
537 style: Option<EditorStyle>,
538 next_editor_action_id: EditorActionId,
539 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
540 use_autoclose: bool,
541 use_auto_surround: bool,
542 auto_replace_emoji_shortcode: bool,
543 show_git_blame_gutter: bool,
544 show_git_blame_inline: bool,
545 show_git_blame_inline_delay_task: Option<Task<()>>,
546 git_blame_inline_enabled: bool,
547 serialize_dirty_buffers: bool,
548 show_selection_menu: Option<bool>,
549 blame: Option<Model<GitBlame>>,
550 blame_subscription: Option<Subscription>,
551 custom_context_menu: Option<
552 Box<
553 dyn 'static
554 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
555 >,
556 >,
557 last_bounds: Option<Bounds<Pixels>>,
558 expect_bounds_change: Option<Bounds<Pixels>>,
559 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
560 tasks_update_task: Option<Task<()>>,
561 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
562 file_header_size: u8,
563 breadcrumb_header: Option<String>,
564 focused_block: Option<FocusedBlock>,
565}
566
567#[derive(Clone)]
568pub struct EditorSnapshot {
569 pub mode: EditorMode,
570 show_gutter: bool,
571 show_line_numbers: Option<bool>,
572 show_git_diff_gutter: Option<bool>,
573 show_code_actions: Option<bool>,
574 show_runnables: Option<bool>,
575 render_git_blame_gutter: bool,
576 pub display_snapshot: DisplaySnapshot,
577 pub placeholder_text: Option<Arc<str>>,
578 is_focused: bool,
579 scroll_anchor: ScrollAnchor,
580 ongoing_scroll: OngoingScroll,
581 current_line_highlight: CurrentLineHighlight,
582 gutter_hovered: bool,
583}
584
585const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
586
587#[derive(Default, Debug, Clone, Copy)]
588pub struct GutterDimensions {
589 pub left_padding: Pixels,
590 pub right_padding: Pixels,
591 pub width: Pixels,
592 pub margin: Pixels,
593 pub git_blame_entries_width: Option<Pixels>,
594}
595
596impl GutterDimensions {
597 /// The full width of the space taken up by the gutter.
598 pub fn full_width(&self) -> Pixels {
599 self.margin + self.width
600 }
601
602 /// The width of the space reserved for the fold indicators,
603 /// use alongside 'justify_end' and `gutter_width` to
604 /// right align content with the line numbers
605 pub fn fold_area_width(&self) -> Pixels {
606 self.margin + self.right_padding
607 }
608}
609
610#[derive(Debug)]
611pub struct RemoteSelection {
612 pub replica_id: ReplicaId,
613 pub selection: Selection<Anchor>,
614 pub cursor_shape: CursorShape,
615 pub peer_id: PeerId,
616 pub line_mode: bool,
617 pub participant_index: Option<ParticipantIndex>,
618 pub user_name: Option<SharedString>,
619}
620
621#[derive(Clone, Debug)]
622struct SelectionHistoryEntry {
623 selections: Arc<[Selection<Anchor>]>,
624 select_next_state: Option<SelectNextState>,
625 select_prev_state: Option<SelectNextState>,
626 add_selections_state: Option<AddSelectionsState>,
627}
628
629enum SelectionHistoryMode {
630 Normal,
631 Undoing,
632 Redoing,
633}
634
635#[derive(Clone, PartialEq, Eq, Hash)]
636struct HoveredCursor {
637 replica_id: u16,
638 selection_id: usize,
639}
640
641impl Default for SelectionHistoryMode {
642 fn default() -> Self {
643 Self::Normal
644 }
645}
646
647#[derive(Default)]
648struct SelectionHistory {
649 #[allow(clippy::type_complexity)]
650 selections_by_transaction:
651 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
652 mode: SelectionHistoryMode,
653 undo_stack: VecDeque<SelectionHistoryEntry>,
654 redo_stack: VecDeque<SelectionHistoryEntry>,
655}
656
657impl SelectionHistory {
658 fn insert_transaction(
659 &mut self,
660 transaction_id: TransactionId,
661 selections: Arc<[Selection<Anchor>]>,
662 ) {
663 self.selections_by_transaction
664 .insert(transaction_id, (selections, None));
665 }
666
667 #[allow(clippy::type_complexity)]
668 fn transaction(
669 &self,
670 transaction_id: TransactionId,
671 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
672 self.selections_by_transaction.get(&transaction_id)
673 }
674
675 #[allow(clippy::type_complexity)]
676 fn transaction_mut(
677 &mut self,
678 transaction_id: TransactionId,
679 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
680 self.selections_by_transaction.get_mut(&transaction_id)
681 }
682
683 fn push(&mut self, entry: SelectionHistoryEntry) {
684 if !entry.selections.is_empty() {
685 match self.mode {
686 SelectionHistoryMode::Normal => {
687 self.push_undo(entry);
688 self.redo_stack.clear();
689 }
690 SelectionHistoryMode::Undoing => self.push_redo(entry),
691 SelectionHistoryMode::Redoing => self.push_undo(entry),
692 }
693 }
694 }
695
696 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
697 if self
698 .undo_stack
699 .back()
700 .map_or(true, |e| e.selections != entry.selections)
701 {
702 self.undo_stack.push_back(entry);
703 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
704 self.undo_stack.pop_front();
705 }
706 }
707 }
708
709 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
710 if self
711 .redo_stack
712 .back()
713 .map_or(true, |e| e.selections != entry.selections)
714 {
715 self.redo_stack.push_back(entry);
716 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
717 self.redo_stack.pop_front();
718 }
719 }
720 }
721}
722
723struct RowHighlight {
724 index: usize,
725 range: RangeInclusive<Anchor>,
726 color: Option<Hsla>,
727 should_autoscroll: bool,
728}
729
730#[derive(Clone, Debug)]
731struct AddSelectionsState {
732 above: bool,
733 stack: Vec<usize>,
734}
735
736#[derive(Clone)]
737struct SelectNextState {
738 query: AhoCorasick,
739 wordwise: bool,
740 done: bool,
741}
742
743impl std::fmt::Debug for SelectNextState {
744 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
745 f.debug_struct(std::any::type_name::<Self>())
746 .field("wordwise", &self.wordwise)
747 .field("done", &self.done)
748 .finish()
749 }
750}
751
752#[derive(Debug)]
753struct AutocloseRegion {
754 selection_id: usize,
755 range: Range<Anchor>,
756 pair: BracketPair,
757}
758
759#[derive(Debug)]
760struct SnippetState {
761 ranges: Vec<Vec<Range<Anchor>>>,
762 active_index: usize,
763}
764
765#[doc(hidden)]
766pub struct RenameState {
767 pub range: Range<Anchor>,
768 pub old_name: Arc<str>,
769 pub editor: View<Editor>,
770 block_id: CustomBlockId,
771}
772
773struct InvalidationStack<T>(Vec<T>);
774
775struct RegisteredInlineCompletionProvider {
776 provider: Arc<dyn InlineCompletionProviderHandle>,
777 _subscription: Subscription,
778}
779
780enum ContextMenu {
781 Completions(CompletionsMenu),
782 CodeActions(CodeActionsMenu),
783}
784
785impl ContextMenu {
786 fn select_first(
787 &mut self,
788 project: Option<&Model<Project>>,
789 cx: &mut ViewContext<Editor>,
790 ) -> bool {
791 if self.visible() {
792 match self {
793 ContextMenu::Completions(menu) => menu.select_first(project, cx),
794 ContextMenu::CodeActions(menu) => menu.select_first(cx),
795 }
796 true
797 } else {
798 false
799 }
800 }
801
802 fn select_prev(
803 &mut self,
804 project: Option<&Model<Project>>,
805 cx: &mut ViewContext<Editor>,
806 ) -> bool {
807 if self.visible() {
808 match self {
809 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
810 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
811 }
812 true
813 } else {
814 false
815 }
816 }
817
818 fn select_next(
819 &mut self,
820 project: Option<&Model<Project>>,
821 cx: &mut ViewContext<Editor>,
822 ) -> bool {
823 if self.visible() {
824 match self {
825 ContextMenu::Completions(menu) => menu.select_next(project, cx),
826 ContextMenu::CodeActions(menu) => menu.select_next(cx),
827 }
828 true
829 } else {
830 false
831 }
832 }
833
834 fn select_last(
835 &mut self,
836 project: Option<&Model<Project>>,
837 cx: &mut ViewContext<Editor>,
838 ) -> bool {
839 if self.visible() {
840 match self {
841 ContextMenu::Completions(menu) => menu.select_last(project, cx),
842 ContextMenu::CodeActions(menu) => menu.select_last(cx),
843 }
844 true
845 } else {
846 false
847 }
848 }
849
850 fn visible(&self) -> bool {
851 match self {
852 ContextMenu::Completions(menu) => menu.visible(),
853 ContextMenu::CodeActions(menu) => menu.visible(),
854 }
855 }
856
857 fn render(
858 &self,
859 cursor_position: DisplayPoint,
860 style: &EditorStyle,
861 max_height: Pixels,
862 workspace: Option<WeakView<Workspace>>,
863 cx: &mut ViewContext<Editor>,
864 ) -> (ContextMenuOrigin, AnyElement) {
865 match self {
866 ContextMenu::Completions(menu) => (
867 ContextMenuOrigin::EditorPoint(cursor_position),
868 menu.render(style, max_height, workspace, cx),
869 ),
870 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
871 }
872 }
873}
874
875enum ContextMenuOrigin {
876 EditorPoint(DisplayPoint),
877 GutterIndicator(DisplayRow),
878}
879
880#[derive(Clone)]
881struct CompletionsMenu {
882 id: CompletionId,
883 initial_position: Anchor,
884 buffer: Model<Buffer>,
885 completions: Arc<RwLock<Box<[Completion]>>>,
886 match_candidates: Arc<[StringMatchCandidate]>,
887 matches: Arc<[StringMatch]>,
888 selected_item: usize,
889 scroll_handle: UniformListScrollHandle,
890 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
891}
892
893impl CompletionsMenu {
894 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
895 self.selected_item = 0;
896 self.scroll_handle.scroll_to_item(self.selected_item);
897 self.attempt_resolve_selected_completion_documentation(project, cx);
898 cx.notify();
899 }
900
901 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
902 if self.selected_item > 0 {
903 self.selected_item -= 1;
904 } else {
905 self.selected_item = self.matches.len() - 1;
906 }
907 self.scroll_handle.scroll_to_item(self.selected_item);
908 self.attempt_resolve_selected_completion_documentation(project, cx);
909 cx.notify();
910 }
911
912 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
913 if self.selected_item + 1 < self.matches.len() {
914 self.selected_item += 1;
915 } else {
916 self.selected_item = 0;
917 }
918 self.scroll_handle.scroll_to_item(self.selected_item);
919 self.attempt_resolve_selected_completion_documentation(project, cx);
920 cx.notify();
921 }
922
923 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
924 self.selected_item = self.matches.len() - 1;
925 self.scroll_handle.scroll_to_item(self.selected_item);
926 self.attempt_resolve_selected_completion_documentation(project, cx);
927 cx.notify();
928 }
929
930 fn pre_resolve_completion_documentation(
931 buffer: Model<Buffer>,
932 completions: Arc<RwLock<Box<[Completion]>>>,
933 matches: Arc<[StringMatch]>,
934 editor: &Editor,
935 cx: &mut ViewContext<Editor>,
936 ) -> Task<()> {
937 let settings = EditorSettings::get_global(cx);
938 if !settings.show_completion_documentation {
939 return Task::ready(());
940 }
941
942 let Some(provider) = editor.completion_provider.as_ref() else {
943 return Task::ready(());
944 };
945
946 let resolve_task = provider.resolve_completions(
947 buffer,
948 matches.iter().map(|m| m.candidate_id).collect(),
949 completions.clone(),
950 cx,
951 );
952
953 return cx.spawn(move |this, mut cx| async move {
954 if let Some(true) = resolve_task.await.log_err() {
955 this.update(&mut cx, |_, cx| cx.notify()).ok();
956 }
957 });
958 }
959
960 fn attempt_resolve_selected_completion_documentation(
961 &mut self,
962 project: Option<&Model<Project>>,
963 cx: &mut ViewContext<Editor>,
964 ) {
965 let settings = EditorSettings::get_global(cx);
966 if !settings.show_completion_documentation {
967 return;
968 }
969
970 let completion_index = self.matches[self.selected_item].candidate_id;
971 let Some(project) = project else {
972 return;
973 };
974
975 let resolve_task = project.update(cx, |project, cx| {
976 project.resolve_completions(
977 self.buffer.clone(),
978 vec![completion_index],
979 self.completions.clone(),
980 cx,
981 )
982 });
983
984 let delay_ms =
985 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
986 let delay = Duration::from_millis(delay_ms);
987
988 self.selected_completion_documentation_resolve_debounce
989 .lock()
990 .fire_new(delay, cx, |_, cx| {
991 cx.spawn(move |this, mut cx| async move {
992 if let Some(true) = resolve_task.await.log_err() {
993 this.update(&mut cx, |_, cx| cx.notify()).ok();
994 }
995 })
996 });
997 }
998
999 fn visible(&self) -> bool {
1000 !self.matches.is_empty()
1001 }
1002
1003 fn render(
1004 &self,
1005 style: &EditorStyle,
1006 max_height: Pixels,
1007 workspace: Option<WeakView<Workspace>>,
1008 cx: &mut ViewContext<Editor>,
1009 ) -> AnyElement {
1010 let settings = EditorSettings::get_global(cx);
1011 let show_completion_documentation = settings.show_completion_documentation;
1012
1013 let widest_completion_ix = self
1014 .matches
1015 .iter()
1016 .enumerate()
1017 .max_by_key(|(_, mat)| {
1018 let completions = self.completions.read();
1019 let completion = &completions[mat.candidate_id];
1020 let documentation = &completion.documentation;
1021
1022 let mut len = completion.label.text.chars().count();
1023 if let Some(Documentation::SingleLine(text)) = documentation {
1024 if show_completion_documentation {
1025 len += text.chars().count();
1026 }
1027 }
1028
1029 len
1030 })
1031 .map(|(ix, _)| ix);
1032
1033 let completions = self.completions.clone();
1034 let matches = self.matches.clone();
1035 let selected_item = self.selected_item;
1036 let style = style.clone();
1037
1038 let multiline_docs = if show_completion_documentation {
1039 let mat = &self.matches[selected_item];
1040 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1041 Some(Documentation::MultiLinePlainText(text)) => {
1042 Some(div().child(SharedString::from(text.clone())))
1043 }
1044 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1045 Some(div().child(render_parsed_markdown(
1046 "completions_markdown",
1047 parsed,
1048 &style,
1049 workspace,
1050 cx,
1051 )))
1052 }
1053 _ => None,
1054 };
1055 multiline_docs.map(|div| {
1056 div.id("multiline_docs")
1057 .max_h(max_height)
1058 .flex_1()
1059 .px_1p5()
1060 .py_1()
1061 .min_w(px(260.))
1062 .max_w(px(640.))
1063 .w(px(500.))
1064 .overflow_y_scroll()
1065 .occlude()
1066 })
1067 } else {
1068 None
1069 };
1070
1071 let list = uniform_list(
1072 cx.view().clone(),
1073 "completions",
1074 matches.len(),
1075 move |_editor, range, cx| {
1076 let start_ix = range.start;
1077 let completions_guard = completions.read();
1078
1079 matches[range]
1080 .iter()
1081 .enumerate()
1082 .map(|(ix, mat)| {
1083 let item_ix = start_ix + ix;
1084 let candidate_id = mat.candidate_id;
1085 let completion = &completions_guard[candidate_id];
1086
1087 let documentation = if show_completion_documentation {
1088 &completion.documentation
1089 } else {
1090 &None
1091 };
1092
1093 let highlights = gpui::combine_highlights(
1094 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1095 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1096 |(range, mut highlight)| {
1097 // Ignore font weight for syntax highlighting, as we'll use it
1098 // for fuzzy matches.
1099 highlight.font_weight = None;
1100
1101 if completion.lsp_completion.deprecated.unwrap_or(false) {
1102 highlight.strikethrough = Some(StrikethroughStyle {
1103 thickness: 1.0.into(),
1104 ..Default::default()
1105 });
1106 highlight.color = Some(cx.theme().colors().text_muted);
1107 }
1108
1109 (range, highlight)
1110 },
1111 ),
1112 );
1113 let completion_label = StyledText::new(completion.label.text.clone())
1114 .with_highlights(&style.text, highlights);
1115 let documentation_label =
1116 if let Some(Documentation::SingleLine(text)) = documentation {
1117 if text.trim().is_empty() {
1118 None
1119 } else {
1120 Some(
1121 Label::new(text.clone())
1122 .ml_4()
1123 .size(LabelSize::Small)
1124 .color(Color::Muted),
1125 )
1126 }
1127 } else {
1128 None
1129 };
1130
1131 div().min_w(px(220.)).max_w(px(540.)).child(
1132 ListItem::new(mat.candidate_id)
1133 .inset(true)
1134 .selected(item_ix == selected_item)
1135 .on_click(cx.listener(move |editor, _event, cx| {
1136 cx.stop_propagation();
1137 if let Some(task) = editor.confirm_completion(
1138 &ConfirmCompletion {
1139 item_ix: Some(item_ix),
1140 },
1141 cx,
1142 ) {
1143 task.detach_and_log_err(cx)
1144 }
1145 }))
1146 .child(h_flex().overflow_hidden().child(completion_label))
1147 .end_slot::<Label>(documentation_label),
1148 )
1149 })
1150 .collect()
1151 },
1152 )
1153 .occlude()
1154 .max_h(max_height)
1155 .track_scroll(self.scroll_handle.clone())
1156 .with_width_from_item(widest_completion_ix)
1157 .with_sizing_behavior(ListSizingBehavior::Infer);
1158
1159 Popover::new()
1160 .child(list)
1161 .when_some(multiline_docs, |popover, multiline_docs| {
1162 popover.aside(multiline_docs)
1163 })
1164 .into_any_element()
1165 }
1166
1167 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1168 let mut matches = if let Some(query) = query {
1169 fuzzy::match_strings(
1170 &self.match_candidates,
1171 query,
1172 query.chars().any(|c| c.is_uppercase()),
1173 100,
1174 &Default::default(),
1175 executor,
1176 )
1177 .await
1178 } else {
1179 self.match_candidates
1180 .iter()
1181 .enumerate()
1182 .map(|(candidate_id, candidate)| StringMatch {
1183 candidate_id,
1184 score: Default::default(),
1185 positions: Default::default(),
1186 string: candidate.string.clone(),
1187 })
1188 .collect()
1189 };
1190
1191 // Remove all candidates where the query's start does not match the start of any word in the candidate
1192 if let Some(query) = query {
1193 if let Some(query_start) = query.chars().next() {
1194 matches.retain(|string_match| {
1195 split_words(&string_match.string).any(|word| {
1196 // Check that the first codepoint of the word as lowercase matches the first
1197 // codepoint of the query as lowercase
1198 word.chars()
1199 .flat_map(|codepoint| codepoint.to_lowercase())
1200 .zip(query_start.to_lowercase())
1201 .all(|(word_cp, query_cp)| word_cp == query_cp)
1202 })
1203 });
1204 }
1205 }
1206
1207 let completions = self.completions.read();
1208 matches.sort_unstable_by_key(|mat| {
1209 // We do want to strike a balance here between what the language server tells us
1210 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1211 // `Creat` and there is a local variable called `CreateComponent`).
1212 // So what we do is: we bucket all matches into two buckets
1213 // - Strong matches
1214 // - Weak matches
1215 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1216 // and the Weak matches are the rest.
1217 //
1218 // For the strong matches, we sort by the language-servers score first and for the weak
1219 // matches, we prefer our fuzzy finder first.
1220 //
1221 // The thinking behind that: it's useless to take the sort_text the language-server gives
1222 // us into account when it's obviously a bad match.
1223
1224 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1225 enum MatchScore<'a> {
1226 Strong {
1227 sort_text: Option<&'a str>,
1228 score: Reverse<OrderedFloat<f64>>,
1229 sort_key: (usize, &'a str),
1230 },
1231 Weak {
1232 score: Reverse<OrderedFloat<f64>>,
1233 sort_text: Option<&'a str>,
1234 sort_key: (usize, &'a str),
1235 },
1236 }
1237
1238 let completion = &completions[mat.candidate_id];
1239 let sort_key = completion.sort_key();
1240 let sort_text = completion.lsp_completion.sort_text.as_deref();
1241 let score = Reverse(OrderedFloat(mat.score));
1242
1243 if mat.score >= 0.2 {
1244 MatchScore::Strong {
1245 sort_text,
1246 score,
1247 sort_key,
1248 }
1249 } else {
1250 MatchScore::Weak {
1251 score,
1252 sort_text,
1253 sort_key,
1254 }
1255 }
1256 });
1257
1258 for mat in &mut matches {
1259 let completion = &completions[mat.candidate_id];
1260 mat.string.clone_from(&completion.label.text);
1261 for position in &mut mat.positions {
1262 *position += completion.label.filter_range.start;
1263 }
1264 }
1265 drop(completions);
1266
1267 self.matches = matches.into();
1268 self.selected_item = 0;
1269 }
1270}
1271
1272#[derive(Clone)]
1273struct CodeActionContents {
1274 tasks: Option<Arc<ResolvedTasks>>,
1275 actions: Option<Arc<[CodeAction]>>,
1276}
1277
1278impl CodeActionContents {
1279 fn len(&self) -> usize {
1280 match (&self.tasks, &self.actions) {
1281 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1282 (Some(tasks), None) => tasks.templates.len(),
1283 (None, Some(actions)) => actions.len(),
1284 (None, None) => 0,
1285 }
1286 }
1287
1288 fn is_empty(&self) -> bool {
1289 match (&self.tasks, &self.actions) {
1290 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1291 (Some(tasks), None) => tasks.templates.is_empty(),
1292 (None, Some(actions)) => actions.is_empty(),
1293 (None, None) => true,
1294 }
1295 }
1296
1297 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1298 self.tasks
1299 .iter()
1300 .flat_map(|tasks| {
1301 tasks
1302 .templates
1303 .iter()
1304 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1305 })
1306 .chain(self.actions.iter().flat_map(|actions| {
1307 actions
1308 .iter()
1309 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1310 }))
1311 }
1312 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1313 match (&self.tasks, &self.actions) {
1314 (Some(tasks), Some(actions)) => {
1315 if index < tasks.templates.len() {
1316 tasks
1317 .templates
1318 .get(index)
1319 .cloned()
1320 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1321 } else {
1322 actions
1323 .get(index - tasks.templates.len())
1324 .cloned()
1325 .map(CodeActionsItem::CodeAction)
1326 }
1327 }
1328 (Some(tasks), None) => tasks
1329 .templates
1330 .get(index)
1331 .cloned()
1332 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1333 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1334 (None, None) => None,
1335 }
1336 }
1337}
1338
1339#[allow(clippy::large_enum_variant)]
1340#[derive(Clone)]
1341enum CodeActionsItem {
1342 Task(TaskSourceKind, ResolvedTask),
1343 CodeAction(CodeAction),
1344}
1345
1346impl CodeActionsItem {
1347 fn as_task(&self) -> Option<&ResolvedTask> {
1348 let Self::Task(_, task) = self else {
1349 return None;
1350 };
1351 Some(task)
1352 }
1353 fn as_code_action(&self) -> Option<&CodeAction> {
1354 let Self::CodeAction(action) = self else {
1355 return None;
1356 };
1357 Some(action)
1358 }
1359 fn label(&self) -> String {
1360 match self {
1361 Self::CodeAction(action) => action.lsp_action.title.clone(),
1362 Self::Task(_, task) => task.resolved_label.clone(),
1363 }
1364 }
1365}
1366
1367struct CodeActionsMenu {
1368 actions: CodeActionContents,
1369 buffer: Model<Buffer>,
1370 selected_item: usize,
1371 scroll_handle: UniformListScrollHandle,
1372 deployed_from_indicator: Option<DisplayRow>,
1373}
1374
1375impl CodeActionsMenu {
1376 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1377 self.selected_item = 0;
1378 self.scroll_handle.scroll_to_item(self.selected_item);
1379 cx.notify()
1380 }
1381
1382 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1383 if self.selected_item > 0 {
1384 self.selected_item -= 1;
1385 } else {
1386 self.selected_item = self.actions.len() - 1;
1387 }
1388 self.scroll_handle.scroll_to_item(self.selected_item);
1389 cx.notify();
1390 }
1391
1392 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1393 if self.selected_item + 1 < self.actions.len() {
1394 self.selected_item += 1;
1395 } else {
1396 self.selected_item = 0;
1397 }
1398 self.scroll_handle.scroll_to_item(self.selected_item);
1399 cx.notify();
1400 }
1401
1402 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1403 self.selected_item = self.actions.len() - 1;
1404 self.scroll_handle.scroll_to_item(self.selected_item);
1405 cx.notify()
1406 }
1407
1408 fn visible(&self) -> bool {
1409 !self.actions.is_empty()
1410 }
1411
1412 fn render(
1413 &self,
1414 cursor_position: DisplayPoint,
1415 _style: &EditorStyle,
1416 max_height: Pixels,
1417 cx: &mut ViewContext<Editor>,
1418 ) -> (ContextMenuOrigin, AnyElement) {
1419 let actions = self.actions.clone();
1420 let selected_item = self.selected_item;
1421 let element = uniform_list(
1422 cx.view().clone(),
1423 "code_actions_menu",
1424 self.actions.len(),
1425 move |_this, range, cx| {
1426 actions
1427 .iter()
1428 .skip(range.start)
1429 .take(range.end - range.start)
1430 .enumerate()
1431 .map(|(ix, action)| {
1432 let item_ix = range.start + ix;
1433 let selected = selected_item == item_ix;
1434 let colors = cx.theme().colors();
1435 div()
1436 .px_2()
1437 .text_color(colors.text)
1438 .when(selected, |style| {
1439 style
1440 .bg(colors.element_active)
1441 .text_color(colors.text_accent)
1442 })
1443 .hover(|style| {
1444 style
1445 .bg(colors.element_hover)
1446 .text_color(colors.text_accent)
1447 })
1448 .whitespace_nowrap()
1449 .when_some(action.as_code_action(), |this, action| {
1450 this.on_mouse_down(
1451 MouseButton::Left,
1452 cx.listener(move |editor, _, cx| {
1453 cx.stop_propagation();
1454 if let Some(task) = editor.confirm_code_action(
1455 &ConfirmCodeAction {
1456 item_ix: Some(item_ix),
1457 },
1458 cx,
1459 ) {
1460 task.detach_and_log_err(cx)
1461 }
1462 }),
1463 )
1464 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1465 .child(SharedString::from(action.lsp_action.title.clone()))
1466 })
1467 .when_some(action.as_task(), |this, task| {
1468 this.on_mouse_down(
1469 MouseButton::Left,
1470 cx.listener(move |editor, _, cx| {
1471 cx.stop_propagation();
1472 if let Some(task) = editor.confirm_code_action(
1473 &ConfirmCodeAction {
1474 item_ix: Some(item_ix),
1475 },
1476 cx,
1477 ) {
1478 task.detach_and_log_err(cx)
1479 }
1480 }),
1481 )
1482 .child(SharedString::from(task.resolved_label.clone()))
1483 })
1484 })
1485 .collect()
1486 },
1487 )
1488 .elevation_1(cx)
1489 .px_2()
1490 .py_1()
1491 .max_h(max_height)
1492 .occlude()
1493 .track_scroll(self.scroll_handle.clone())
1494 .with_width_from_item(
1495 self.actions
1496 .iter()
1497 .enumerate()
1498 .max_by_key(|(_, action)| match action {
1499 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1500 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1501 })
1502 .map(|(ix, _)| ix),
1503 )
1504 .with_sizing_behavior(ListSizingBehavior::Infer)
1505 .into_any_element();
1506
1507 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1508 ContextMenuOrigin::GutterIndicator(row)
1509 } else {
1510 ContextMenuOrigin::EditorPoint(cursor_position)
1511 };
1512
1513 (cursor_position, element)
1514 }
1515}
1516
1517#[derive(Debug)]
1518struct ActiveDiagnosticGroup {
1519 primary_range: Range<Anchor>,
1520 primary_message: String,
1521 group_id: usize,
1522 blocks: HashMap<CustomBlockId, Diagnostic>,
1523 is_valid: bool,
1524}
1525
1526#[derive(Serialize, Deserialize, Clone, Debug)]
1527pub struct ClipboardSelection {
1528 pub len: usize,
1529 pub is_entire_line: bool,
1530 pub first_line_indent: u32,
1531}
1532
1533#[derive(Debug)]
1534pub(crate) struct NavigationData {
1535 cursor_anchor: Anchor,
1536 cursor_position: Point,
1537 scroll_anchor: ScrollAnchor,
1538 scroll_top_row: u32,
1539}
1540
1541enum GotoDefinitionKind {
1542 Symbol,
1543 Type,
1544 Implementation,
1545}
1546
1547#[derive(Debug, Clone)]
1548enum InlayHintRefreshReason {
1549 Toggle(bool),
1550 SettingsChange(InlayHintSettings),
1551 NewLinesShown,
1552 BufferEdited(HashSet<Arc<Language>>),
1553 RefreshRequested,
1554 ExcerptsRemoved(Vec<ExcerptId>),
1555}
1556
1557impl InlayHintRefreshReason {
1558 fn description(&self) -> &'static str {
1559 match self {
1560 Self::Toggle(_) => "toggle",
1561 Self::SettingsChange(_) => "settings change",
1562 Self::NewLinesShown => "new lines shown",
1563 Self::BufferEdited(_) => "buffer edited",
1564 Self::RefreshRequested => "refresh requested",
1565 Self::ExcerptsRemoved(_) => "excerpts removed",
1566 }
1567 }
1568}
1569
1570pub(crate) struct FocusedBlock {
1571 id: BlockId,
1572 focus_handle: WeakFocusHandle,
1573}
1574
1575impl Editor {
1576 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1577 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1578 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1579 Self::new(
1580 EditorMode::SingleLine { auto_width: false },
1581 buffer,
1582 None,
1583 false,
1584 cx,
1585 )
1586 }
1587
1588 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1589 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1590 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1591 Self::new(EditorMode::Full, buffer, None, false, cx)
1592 }
1593
1594 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1595 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1596 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1597 Self::new(
1598 EditorMode::SingleLine { auto_width: true },
1599 buffer,
1600 None,
1601 false,
1602 cx,
1603 )
1604 }
1605
1606 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1607 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1608 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1609 Self::new(
1610 EditorMode::AutoHeight { max_lines },
1611 buffer,
1612 None,
1613 false,
1614 cx,
1615 )
1616 }
1617
1618 pub fn for_buffer(
1619 buffer: Model<Buffer>,
1620 project: Option<Model<Project>>,
1621 cx: &mut ViewContext<Self>,
1622 ) -> Self {
1623 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1624 Self::new(EditorMode::Full, buffer, project, false, cx)
1625 }
1626
1627 pub fn for_multibuffer(
1628 buffer: Model<MultiBuffer>,
1629 project: Option<Model<Project>>,
1630 show_excerpt_controls: bool,
1631 cx: &mut ViewContext<Self>,
1632 ) -> Self {
1633 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1634 }
1635
1636 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1637 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1638 let mut clone = Self::new(
1639 self.mode,
1640 self.buffer.clone(),
1641 self.project.clone(),
1642 show_excerpt_controls,
1643 cx,
1644 );
1645 self.display_map.update(cx, |display_map, cx| {
1646 let snapshot = display_map.snapshot(cx);
1647 clone.display_map.update(cx, |display_map, cx| {
1648 display_map.set_state(&snapshot, cx);
1649 });
1650 });
1651 clone.selections.clone_state(&self.selections);
1652 clone.scroll_manager.clone_state(&self.scroll_manager);
1653 clone.searchable = self.searchable;
1654 clone
1655 }
1656
1657 pub fn new(
1658 mode: EditorMode,
1659 buffer: Model<MultiBuffer>,
1660 project: Option<Model<Project>>,
1661 show_excerpt_controls: bool,
1662 cx: &mut ViewContext<Self>,
1663 ) -> Self {
1664 let style = cx.text_style();
1665 let font_size = style.font_size.to_pixels(cx.rem_size());
1666 let editor = cx.view().downgrade();
1667 let fold_placeholder = FoldPlaceholder {
1668 constrain_width: true,
1669 render: Arc::new(move |fold_id, fold_range, cx| {
1670 let editor = editor.clone();
1671 div()
1672 .id(fold_id)
1673 .bg(cx.theme().colors().ghost_element_background)
1674 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1675 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1676 .rounded_sm()
1677 .size_full()
1678 .cursor_pointer()
1679 .child("⋯")
1680 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1681 .on_click(move |_, cx| {
1682 editor
1683 .update(cx, |editor, cx| {
1684 editor.unfold_ranges(
1685 [fold_range.start..fold_range.end],
1686 true,
1687 false,
1688 cx,
1689 );
1690 cx.stop_propagation();
1691 })
1692 .ok();
1693 })
1694 .into_any()
1695 }),
1696 merge_adjacent: true,
1697 };
1698 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1699 let display_map = cx.new_model(|cx| {
1700 DisplayMap::new(
1701 buffer.clone(),
1702 style.font(),
1703 font_size,
1704 None,
1705 show_excerpt_controls,
1706 file_header_size,
1707 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1708 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1709 fold_placeholder,
1710 cx,
1711 )
1712 });
1713
1714 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1715
1716 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1717
1718 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1719 .then(|| language_settings::SoftWrap::PreferLine);
1720
1721 let mut project_subscriptions = Vec::new();
1722 if mode == EditorMode::Full {
1723 if let Some(project) = project.as_ref() {
1724 if buffer.read(cx).is_singleton() {
1725 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1726 cx.emit(EditorEvent::TitleChanged);
1727 }));
1728 }
1729 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1730 if let project::Event::RefreshInlayHints = event {
1731 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1732 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1733 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1734 let focus_handle = editor.focus_handle(cx);
1735 if focus_handle.is_focused(cx) {
1736 let snapshot = buffer.read(cx).snapshot();
1737 for (range, snippet) in snippet_edits {
1738 let editor_range =
1739 language::range_from_lsp(*range).to_offset(&snapshot);
1740 editor
1741 .insert_snippet(&[editor_range], snippet.clone(), cx)
1742 .ok();
1743 }
1744 }
1745 }
1746 }
1747 }));
1748 let task_inventory = project.read(cx).task_inventory().clone();
1749 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1750 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1751 }));
1752 }
1753 }
1754
1755 let inlay_hint_settings = inlay_hint_settings(
1756 selections.newest_anchor().head(),
1757 &buffer.read(cx).snapshot(cx),
1758 cx,
1759 );
1760 let focus_handle = cx.focus_handle();
1761 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1762 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1763 .detach();
1764 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1765 .detach();
1766 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1767
1768 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1769 Some(false)
1770 } else {
1771 None
1772 };
1773
1774 let mut this = Self {
1775 focus_handle,
1776 show_cursor_when_unfocused: false,
1777 last_focused_descendant: None,
1778 buffer: buffer.clone(),
1779 display_map: display_map.clone(),
1780 selections,
1781 scroll_manager: ScrollManager::new(cx),
1782 columnar_selection_tail: None,
1783 add_selections_state: None,
1784 select_next_state: None,
1785 select_prev_state: None,
1786 selection_history: Default::default(),
1787 autoclose_regions: Default::default(),
1788 snippet_stack: Default::default(),
1789 select_larger_syntax_node_stack: Vec::new(),
1790 ime_transaction: Default::default(),
1791 active_diagnostics: None,
1792 soft_wrap_mode_override,
1793 completion_provider: project.clone().map(|project| Box::new(project) as _),
1794 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1795 project,
1796 blink_manager: blink_manager.clone(),
1797 show_local_selections: true,
1798 mode,
1799 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1800 show_gutter: mode == EditorMode::Full,
1801 show_line_numbers: None,
1802 show_git_diff_gutter: None,
1803 show_code_actions: None,
1804 show_runnables: None,
1805 show_wrap_guides: None,
1806 redact_all: false,
1807 show_indent_guides,
1808 placeholder_text: None,
1809 highlight_order: 0,
1810 highlighted_rows: HashMap::default(),
1811 background_highlights: Default::default(),
1812 gutter_highlights: TreeMap::default(),
1813 scrollbar_marker_state: ScrollbarMarkerState::default(),
1814 active_indent_guides_state: ActiveIndentGuidesState::default(),
1815 nav_history: None,
1816 context_menu: RwLock::new(None),
1817 mouse_context_menu: None,
1818 completion_tasks: Default::default(),
1819 signature_help_state: SignatureHelpState::default(),
1820 auto_signature_help: None,
1821 find_all_references_task_sources: Vec::new(),
1822 next_completion_id: 0,
1823 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1824 next_inlay_id: 0,
1825 available_code_actions: Default::default(),
1826 code_actions_task: Default::default(),
1827 document_highlights_task: Default::default(),
1828 linked_editing_range_task: Default::default(),
1829 pending_rename: Default::default(),
1830 searchable: true,
1831 cursor_shape: Default::default(),
1832 current_line_highlight: None,
1833 autoindent_mode: Some(AutoindentMode::EachLine),
1834 collapse_matches: false,
1835 workspace: None,
1836 keymap_context_layers: Default::default(),
1837 input_enabled: true,
1838 use_modal_editing: mode == EditorMode::Full,
1839 read_only: false,
1840 use_autoclose: true,
1841 use_auto_surround: true,
1842 auto_replace_emoji_shortcode: false,
1843 leader_peer_id: None,
1844 remote_id: None,
1845 hover_state: Default::default(),
1846 hovered_link_state: Default::default(),
1847 inline_completion_provider: None,
1848 active_inline_completion: None,
1849 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1850 expanded_hunks: ExpandedHunks::default(),
1851 gutter_hovered: false,
1852 pixel_position_of_newest_cursor: None,
1853 last_bounds: None,
1854 expect_bounds_change: None,
1855 gutter_dimensions: GutterDimensions::default(),
1856 style: None,
1857 show_cursor_names: false,
1858 hovered_cursors: Default::default(),
1859 next_editor_action_id: EditorActionId::default(),
1860 editor_actions: Rc::default(),
1861 vim_replace_map: Default::default(),
1862 show_inline_completions: mode == EditorMode::Full,
1863 custom_context_menu: None,
1864 show_git_blame_gutter: false,
1865 show_git_blame_inline: false,
1866 show_selection_menu: None,
1867 show_git_blame_inline_delay_task: None,
1868 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1869 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1870 .session
1871 .restore_unsaved_buffers,
1872 blame: None,
1873 blame_subscription: None,
1874 file_header_size,
1875 tasks: Default::default(),
1876 _subscriptions: vec![
1877 cx.observe(&buffer, Self::on_buffer_changed),
1878 cx.subscribe(&buffer, Self::on_buffer_event),
1879 cx.observe(&display_map, Self::on_display_map_changed),
1880 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1881 cx.observe_global::<SettingsStore>(Self::settings_changed),
1882 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1883 cx.observe_window_activation(|editor, cx| {
1884 let active = cx.is_window_active();
1885 editor.blink_manager.update(cx, |blink_manager, cx| {
1886 if active {
1887 blink_manager.enable(cx);
1888 } else {
1889 blink_manager.show_cursor(cx);
1890 blink_manager.disable(cx);
1891 }
1892 });
1893 }),
1894 ],
1895 tasks_update_task: None,
1896 linked_edit_ranges: Default::default(),
1897 previous_search_ranges: None,
1898 breadcrumb_header: None,
1899 focused_block: None,
1900 };
1901 this.tasks_update_task = Some(this.refresh_runnables(cx));
1902 this._subscriptions.extend(project_subscriptions);
1903
1904 this.end_selection(cx);
1905 this.scroll_manager.show_scrollbar(cx);
1906
1907 if mode == EditorMode::Full {
1908 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1909 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1910
1911 if this.git_blame_inline_enabled {
1912 this.git_blame_inline_enabled = true;
1913 this.start_git_blame_inline(false, cx);
1914 }
1915 }
1916
1917 this.report_editor_event("open", None, cx);
1918 this
1919 }
1920
1921 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1922 self.mouse_context_menu
1923 .as_ref()
1924 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1925 }
1926
1927 fn key_context(&self, cx: &AppContext) -> KeyContext {
1928 let mut key_context = KeyContext::new_with_defaults();
1929 key_context.add("Editor");
1930 let mode = match self.mode {
1931 EditorMode::SingleLine { .. } => "single_line",
1932 EditorMode::AutoHeight { .. } => "auto_height",
1933 EditorMode::Full => "full",
1934 };
1935
1936 if EditorSettings::jupyter_enabled(cx) {
1937 key_context.add("jupyter");
1938 }
1939
1940 key_context.set("mode", mode);
1941 if self.pending_rename.is_some() {
1942 key_context.add("renaming");
1943 }
1944 if self.context_menu_visible() {
1945 match self.context_menu.read().as_ref() {
1946 Some(ContextMenu::Completions(_)) => {
1947 key_context.add("menu");
1948 key_context.add("showing_completions")
1949 }
1950 Some(ContextMenu::CodeActions(_)) => {
1951 key_context.add("menu");
1952 key_context.add("showing_code_actions")
1953 }
1954 None => {}
1955 }
1956 }
1957
1958 for layer in self.keymap_context_layers.values() {
1959 key_context.extend(layer);
1960 }
1961
1962 if let Some(extension) = self
1963 .buffer
1964 .read(cx)
1965 .as_singleton()
1966 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1967 {
1968 key_context.set("extension", extension.to_string());
1969 }
1970
1971 if self.has_active_inline_completion(cx) {
1972 key_context.add("copilot_suggestion");
1973 key_context.add("inline_completion");
1974 }
1975
1976 key_context
1977 }
1978
1979 pub fn new_file(
1980 workspace: &mut Workspace,
1981 _: &workspace::NewFile,
1982 cx: &mut ViewContext<Workspace>,
1983 ) {
1984 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1985 "Failed to create buffer",
1986 cx,
1987 |e, _| match e.error_code() {
1988 ErrorCode::RemoteUpgradeRequired => Some(format!(
1989 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1990 e.error_tag("required").unwrap_or("the latest version")
1991 )),
1992 _ => None,
1993 },
1994 );
1995 }
1996
1997 pub fn new_in_workspace(
1998 workspace: &mut Workspace,
1999 cx: &mut ViewContext<Workspace>,
2000 ) -> Task<Result<View<Editor>>> {
2001 let project = workspace.project().clone();
2002 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2003
2004 cx.spawn(|workspace, mut cx| async move {
2005 let buffer = create.await?;
2006 workspace.update(&mut cx, |workspace, cx| {
2007 let editor =
2008 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2009 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2010 editor
2011 })
2012 })
2013 }
2014
2015 pub fn new_file_in_direction(
2016 workspace: &mut Workspace,
2017 action: &workspace::NewFileInDirection,
2018 cx: &mut ViewContext<Workspace>,
2019 ) {
2020 let project = workspace.project().clone();
2021 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2022 let direction = action.0;
2023
2024 cx.spawn(|workspace, mut cx| async move {
2025 let buffer = create.await?;
2026 workspace.update(&mut cx, move |workspace, cx| {
2027 workspace.split_item(
2028 direction,
2029 Box::new(
2030 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2031 ),
2032 cx,
2033 )
2034 })?;
2035 anyhow::Ok(())
2036 })
2037 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2038 ErrorCode::RemoteUpgradeRequired => Some(format!(
2039 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2040 e.error_tag("required").unwrap_or("the latest version")
2041 )),
2042 _ => None,
2043 });
2044 }
2045
2046 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2047 self.buffer.read(cx).replica_id()
2048 }
2049
2050 pub fn leader_peer_id(&self) -> Option<PeerId> {
2051 self.leader_peer_id
2052 }
2053
2054 pub fn buffer(&self) -> &Model<MultiBuffer> {
2055 &self.buffer
2056 }
2057
2058 pub fn workspace(&self) -> Option<View<Workspace>> {
2059 self.workspace.as_ref()?.0.upgrade()
2060 }
2061
2062 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2063 self.buffer().read(cx).title(cx)
2064 }
2065
2066 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2067 EditorSnapshot {
2068 mode: self.mode,
2069 show_gutter: self.show_gutter,
2070 show_line_numbers: self.show_line_numbers,
2071 show_git_diff_gutter: self.show_git_diff_gutter,
2072 show_code_actions: self.show_code_actions,
2073 show_runnables: self.show_runnables,
2074 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2075 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2076 scroll_anchor: self.scroll_manager.anchor(),
2077 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2078 placeholder_text: self.placeholder_text.clone(),
2079 is_focused: self.focus_handle.is_focused(cx),
2080 current_line_highlight: self
2081 .current_line_highlight
2082 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2083 gutter_hovered: self.gutter_hovered,
2084 }
2085 }
2086
2087 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2088 self.buffer.read(cx).language_at(point, cx)
2089 }
2090
2091 pub fn file_at<T: ToOffset>(
2092 &self,
2093 point: T,
2094 cx: &AppContext,
2095 ) -> Option<Arc<dyn language::File>> {
2096 self.buffer.read(cx).read(cx).file_at(point).cloned()
2097 }
2098
2099 pub fn active_excerpt(
2100 &self,
2101 cx: &AppContext,
2102 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2103 self.buffer
2104 .read(cx)
2105 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2106 }
2107
2108 pub fn mode(&self) -> EditorMode {
2109 self.mode
2110 }
2111
2112 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2113 self.collaboration_hub.as_deref()
2114 }
2115
2116 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2117 self.collaboration_hub = Some(hub);
2118 }
2119
2120 pub fn set_custom_context_menu(
2121 &mut self,
2122 f: impl 'static
2123 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2124 ) {
2125 self.custom_context_menu = Some(Box::new(f))
2126 }
2127
2128 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2129 self.completion_provider = Some(provider);
2130 }
2131
2132 pub fn set_inline_completion_provider<T>(
2133 &mut self,
2134 provider: Option<Model<T>>,
2135 cx: &mut ViewContext<Self>,
2136 ) where
2137 T: InlineCompletionProvider,
2138 {
2139 self.inline_completion_provider =
2140 provider.map(|provider| RegisteredInlineCompletionProvider {
2141 _subscription: cx.observe(&provider, |this, _, cx| {
2142 if this.focus_handle.is_focused(cx) {
2143 this.update_visible_inline_completion(cx);
2144 }
2145 }),
2146 provider: Arc::new(provider),
2147 });
2148 self.refresh_inline_completion(false, cx);
2149 }
2150
2151 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2152 self.placeholder_text.as_deref()
2153 }
2154
2155 pub fn set_placeholder_text(
2156 &mut self,
2157 placeholder_text: impl Into<Arc<str>>,
2158 cx: &mut ViewContext<Self>,
2159 ) {
2160 let placeholder_text = Some(placeholder_text.into());
2161 if self.placeholder_text != placeholder_text {
2162 self.placeholder_text = placeholder_text;
2163 cx.notify();
2164 }
2165 }
2166
2167 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2168 self.cursor_shape = cursor_shape;
2169
2170 // Disrupt blink for immediate user feedback that the cursor shape has changed
2171 self.blink_manager.update(cx, BlinkManager::show_cursor);
2172
2173 cx.notify();
2174 }
2175
2176 pub fn set_current_line_highlight(
2177 &mut self,
2178 current_line_highlight: Option<CurrentLineHighlight>,
2179 ) {
2180 self.current_line_highlight = current_line_highlight;
2181 }
2182
2183 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2184 self.collapse_matches = collapse_matches;
2185 }
2186
2187 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2188 if self.collapse_matches {
2189 return range.start..range.start;
2190 }
2191 range.clone()
2192 }
2193
2194 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2195 if self.display_map.read(cx).clip_at_line_ends != clip {
2196 self.display_map
2197 .update(cx, |map, _| map.clip_at_line_ends = clip);
2198 }
2199 }
2200
2201 pub fn set_keymap_context_layer<Tag: 'static>(
2202 &mut self,
2203 context: KeyContext,
2204 cx: &mut ViewContext<Self>,
2205 ) {
2206 self.keymap_context_layers
2207 .insert(TypeId::of::<Tag>(), context);
2208 cx.notify();
2209 }
2210
2211 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2212 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2213 cx.notify();
2214 }
2215
2216 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2217 self.input_enabled = input_enabled;
2218 }
2219
2220 pub fn set_autoindent(&mut self, autoindent: bool) {
2221 if autoindent {
2222 self.autoindent_mode = Some(AutoindentMode::EachLine);
2223 } else {
2224 self.autoindent_mode = None;
2225 }
2226 }
2227
2228 pub fn read_only(&self, cx: &AppContext) -> bool {
2229 self.read_only || self.buffer.read(cx).read_only()
2230 }
2231
2232 pub fn set_read_only(&mut self, read_only: bool) {
2233 self.read_only = read_only;
2234 }
2235
2236 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2237 self.use_autoclose = autoclose;
2238 }
2239
2240 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2241 self.use_auto_surround = auto_surround;
2242 }
2243
2244 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2245 self.auto_replace_emoji_shortcode = auto_replace;
2246 }
2247
2248 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2249 self.show_inline_completions = show_inline_completions;
2250 }
2251
2252 pub fn set_use_modal_editing(&mut self, to: bool) {
2253 self.use_modal_editing = to;
2254 }
2255
2256 pub fn use_modal_editing(&self) -> bool {
2257 self.use_modal_editing
2258 }
2259
2260 fn selections_did_change(
2261 &mut self,
2262 local: bool,
2263 old_cursor_position: &Anchor,
2264 show_completions: bool,
2265 cx: &mut ViewContext<Self>,
2266 ) {
2267 // Copy selections to primary selection buffer
2268 #[cfg(target_os = "linux")]
2269 if local {
2270 let selections = self.selections.all::<usize>(cx);
2271 let buffer_handle = self.buffer.read(cx).read(cx);
2272
2273 let mut text = String::new();
2274 for (index, selection) in selections.iter().enumerate() {
2275 let text_for_selection = buffer_handle
2276 .text_for_range(selection.start..selection.end)
2277 .collect::<String>();
2278
2279 text.push_str(&text_for_selection);
2280 if index != selections.len() - 1 {
2281 text.push('\n');
2282 }
2283 }
2284
2285 if !text.is_empty() {
2286 cx.write_to_primary(ClipboardItem::new(text));
2287 }
2288 }
2289
2290 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2291 self.buffer.update(cx, |buffer, cx| {
2292 buffer.set_active_selections(
2293 &self.selections.disjoint_anchors(),
2294 self.selections.line_mode,
2295 self.cursor_shape,
2296 cx,
2297 )
2298 });
2299 }
2300 let display_map = self
2301 .display_map
2302 .update(cx, |display_map, cx| display_map.snapshot(cx));
2303 let buffer = &display_map.buffer_snapshot;
2304 self.add_selections_state = None;
2305 self.select_next_state = None;
2306 self.select_prev_state = None;
2307 self.select_larger_syntax_node_stack.clear();
2308 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2309 self.snippet_stack
2310 .invalidate(&self.selections.disjoint_anchors(), buffer);
2311 self.take_rename(false, cx);
2312
2313 let new_cursor_position = self.selections.newest_anchor().head();
2314
2315 self.push_to_nav_history(
2316 *old_cursor_position,
2317 Some(new_cursor_position.to_point(buffer)),
2318 cx,
2319 );
2320
2321 if local {
2322 let new_cursor_position = self.selections.newest_anchor().head();
2323 let mut context_menu = self.context_menu.write();
2324 let completion_menu = match context_menu.as_ref() {
2325 Some(ContextMenu::Completions(menu)) => Some(menu),
2326
2327 _ => {
2328 *context_menu = None;
2329 None
2330 }
2331 };
2332
2333 if let Some(completion_menu) = completion_menu {
2334 let cursor_position = new_cursor_position.to_offset(buffer);
2335 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2336 if kind == Some(CharKind::Word)
2337 && word_range.to_inclusive().contains(&cursor_position)
2338 {
2339 let mut completion_menu = completion_menu.clone();
2340 drop(context_menu);
2341
2342 let query = Self::completion_query(buffer, cursor_position);
2343 cx.spawn(move |this, mut cx| async move {
2344 completion_menu
2345 .filter(query.as_deref(), cx.background_executor().clone())
2346 .await;
2347
2348 this.update(&mut cx, |this, cx| {
2349 let mut context_menu = this.context_menu.write();
2350 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2351 return;
2352 };
2353
2354 if menu.id > completion_menu.id {
2355 return;
2356 }
2357
2358 *context_menu = Some(ContextMenu::Completions(completion_menu));
2359 drop(context_menu);
2360 cx.notify();
2361 })
2362 })
2363 .detach();
2364
2365 if show_completions {
2366 self.show_completions(&ShowCompletions { trigger: None }, cx);
2367 }
2368 } else {
2369 drop(context_menu);
2370 self.hide_context_menu(cx);
2371 }
2372 } else {
2373 drop(context_menu);
2374 }
2375
2376 hide_hover(self, cx);
2377
2378 if old_cursor_position.to_display_point(&display_map).row()
2379 != new_cursor_position.to_display_point(&display_map).row()
2380 {
2381 self.available_code_actions.take();
2382 }
2383 self.refresh_code_actions(cx);
2384 self.refresh_document_highlights(cx);
2385 refresh_matching_bracket_highlights(self, cx);
2386 self.discard_inline_completion(false, cx);
2387 linked_editing_ranges::refresh_linked_ranges(self, cx);
2388 if self.git_blame_inline_enabled {
2389 self.start_inline_blame_timer(cx);
2390 }
2391 }
2392
2393 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2394 cx.emit(EditorEvent::SelectionsChanged { local });
2395
2396 if self.selections.disjoint_anchors().len() == 1 {
2397 cx.emit(SearchEvent::ActiveMatchChanged)
2398 }
2399 cx.notify();
2400 }
2401
2402 pub fn change_selections<R>(
2403 &mut self,
2404 autoscroll: Option<Autoscroll>,
2405 cx: &mut ViewContext<Self>,
2406 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2407 ) -> R {
2408 self.change_selections_inner(autoscroll, true, cx, change)
2409 }
2410
2411 pub fn change_selections_inner<R>(
2412 &mut self,
2413 autoscroll: Option<Autoscroll>,
2414 request_completions: bool,
2415 cx: &mut ViewContext<Self>,
2416 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2417 ) -> R {
2418 let old_cursor_position = self.selections.newest_anchor().head();
2419 self.push_to_selection_history();
2420
2421 let (changed, result) = self.selections.change_with(cx, change);
2422
2423 if changed {
2424 if let Some(autoscroll) = autoscroll {
2425 self.request_autoscroll(autoscroll, cx);
2426 }
2427 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2428
2429 if self.should_open_signature_help_automatically(
2430 &old_cursor_position,
2431 self.signature_help_state.backspace_pressed(),
2432 cx,
2433 ) {
2434 self.show_signature_help(&ShowSignatureHelp, cx);
2435 }
2436 self.signature_help_state.set_backspace_pressed(false);
2437 }
2438
2439 result
2440 }
2441
2442 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2443 where
2444 I: IntoIterator<Item = (Range<S>, T)>,
2445 S: ToOffset,
2446 T: Into<Arc<str>>,
2447 {
2448 if self.read_only(cx) {
2449 return;
2450 }
2451
2452 self.buffer
2453 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2454 }
2455
2456 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2457 where
2458 I: IntoIterator<Item = (Range<S>, T)>,
2459 S: ToOffset,
2460 T: Into<Arc<str>>,
2461 {
2462 if self.read_only(cx) {
2463 return;
2464 }
2465
2466 self.buffer.update(cx, |buffer, cx| {
2467 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2468 });
2469 }
2470
2471 pub fn edit_with_block_indent<I, S, T>(
2472 &mut self,
2473 edits: I,
2474 original_indent_columns: Vec<u32>,
2475 cx: &mut ViewContext<Self>,
2476 ) where
2477 I: IntoIterator<Item = (Range<S>, T)>,
2478 S: ToOffset,
2479 T: Into<Arc<str>>,
2480 {
2481 if self.read_only(cx) {
2482 return;
2483 }
2484
2485 self.buffer.update(cx, |buffer, cx| {
2486 buffer.edit(
2487 edits,
2488 Some(AutoindentMode::Block {
2489 original_indent_columns,
2490 }),
2491 cx,
2492 )
2493 });
2494 }
2495
2496 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2497 self.hide_context_menu(cx);
2498
2499 match phase {
2500 SelectPhase::Begin {
2501 position,
2502 add,
2503 click_count,
2504 } => self.begin_selection(position, add, click_count, cx),
2505 SelectPhase::BeginColumnar {
2506 position,
2507 goal_column,
2508 reset,
2509 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2510 SelectPhase::Extend {
2511 position,
2512 click_count,
2513 } => self.extend_selection(position, click_count, cx),
2514 SelectPhase::Update {
2515 position,
2516 goal_column,
2517 scroll_delta,
2518 } => self.update_selection(position, goal_column, scroll_delta, cx),
2519 SelectPhase::End => self.end_selection(cx),
2520 }
2521 }
2522
2523 fn extend_selection(
2524 &mut self,
2525 position: DisplayPoint,
2526 click_count: usize,
2527 cx: &mut ViewContext<Self>,
2528 ) {
2529 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2530 let tail = self.selections.newest::<usize>(cx).tail();
2531 self.begin_selection(position, false, click_count, cx);
2532
2533 let position = position.to_offset(&display_map, Bias::Left);
2534 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2535
2536 let mut pending_selection = self
2537 .selections
2538 .pending_anchor()
2539 .expect("extend_selection not called with pending selection");
2540 if position >= tail {
2541 pending_selection.start = tail_anchor;
2542 } else {
2543 pending_selection.end = tail_anchor;
2544 pending_selection.reversed = true;
2545 }
2546
2547 let mut pending_mode = self.selections.pending_mode().unwrap();
2548 match &mut pending_mode {
2549 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2550 _ => {}
2551 }
2552
2553 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2554 s.set_pending(pending_selection, pending_mode)
2555 });
2556 }
2557
2558 fn begin_selection(
2559 &mut self,
2560 position: DisplayPoint,
2561 add: bool,
2562 click_count: usize,
2563 cx: &mut ViewContext<Self>,
2564 ) {
2565 if !self.focus_handle.is_focused(cx) {
2566 self.last_focused_descendant = None;
2567 cx.focus(&self.focus_handle);
2568 }
2569
2570 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2571 let buffer = &display_map.buffer_snapshot;
2572 let newest_selection = self.selections.newest_anchor().clone();
2573 let position = display_map.clip_point(position, Bias::Left);
2574
2575 let start;
2576 let end;
2577 let mode;
2578 let auto_scroll;
2579 match click_count {
2580 1 => {
2581 start = buffer.anchor_before(position.to_point(&display_map));
2582 end = start;
2583 mode = SelectMode::Character;
2584 auto_scroll = true;
2585 }
2586 2 => {
2587 let range = movement::surrounding_word(&display_map, position);
2588 start = buffer.anchor_before(range.start.to_point(&display_map));
2589 end = buffer.anchor_before(range.end.to_point(&display_map));
2590 mode = SelectMode::Word(start..end);
2591 auto_scroll = true;
2592 }
2593 3 => {
2594 let position = display_map
2595 .clip_point(position, Bias::Left)
2596 .to_point(&display_map);
2597 let line_start = display_map.prev_line_boundary(position).0;
2598 let next_line_start = buffer.clip_point(
2599 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2600 Bias::Left,
2601 );
2602 start = buffer.anchor_before(line_start);
2603 end = buffer.anchor_before(next_line_start);
2604 mode = SelectMode::Line(start..end);
2605 auto_scroll = true;
2606 }
2607 _ => {
2608 start = buffer.anchor_before(0);
2609 end = buffer.anchor_before(buffer.len());
2610 mode = SelectMode::All;
2611 auto_scroll = false;
2612 }
2613 }
2614
2615 let point_to_delete: Option<usize> = {
2616 let selected_points: Vec<Selection<Point>> =
2617 self.selections.disjoint_in_range(start..end, cx);
2618
2619 if !add || click_count > 1 {
2620 None
2621 } else if selected_points.len() > 0 {
2622 Some(selected_points[0].id)
2623 } else {
2624 let clicked_point_already_selected =
2625 self.selections.disjoint.iter().find(|selection| {
2626 selection.start.to_point(buffer) == start.to_point(buffer)
2627 || selection.end.to_point(buffer) == end.to_point(buffer)
2628 });
2629
2630 if let Some(selection) = clicked_point_already_selected {
2631 Some(selection.id)
2632 } else {
2633 None
2634 }
2635 }
2636 };
2637
2638 let selections_count = self.selections.count();
2639
2640 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2641 if let Some(point_to_delete) = point_to_delete {
2642 s.delete(point_to_delete);
2643
2644 if selections_count == 1 {
2645 s.set_pending_anchor_range(start..end, mode);
2646 }
2647 } else {
2648 if !add {
2649 s.clear_disjoint();
2650 } else if click_count > 1 {
2651 s.delete(newest_selection.id)
2652 }
2653
2654 s.set_pending_anchor_range(start..end, mode);
2655 }
2656 });
2657 }
2658
2659 fn begin_columnar_selection(
2660 &mut self,
2661 position: DisplayPoint,
2662 goal_column: u32,
2663 reset: bool,
2664 cx: &mut ViewContext<Self>,
2665 ) {
2666 if !self.focus_handle.is_focused(cx) {
2667 self.last_focused_descendant = None;
2668 cx.focus(&self.focus_handle);
2669 }
2670
2671 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2672
2673 if reset {
2674 let pointer_position = display_map
2675 .buffer_snapshot
2676 .anchor_before(position.to_point(&display_map));
2677
2678 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2679 s.clear_disjoint();
2680 s.set_pending_anchor_range(
2681 pointer_position..pointer_position,
2682 SelectMode::Character,
2683 );
2684 });
2685 }
2686
2687 let tail = self.selections.newest::<Point>(cx).tail();
2688 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2689
2690 if !reset {
2691 self.select_columns(
2692 tail.to_display_point(&display_map),
2693 position,
2694 goal_column,
2695 &display_map,
2696 cx,
2697 );
2698 }
2699 }
2700
2701 fn update_selection(
2702 &mut self,
2703 position: DisplayPoint,
2704 goal_column: u32,
2705 scroll_delta: gpui::Point<f32>,
2706 cx: &mut ViewContext<Self>,
2707 ) {
2708 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2709
2710 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2711 let tail = tail.to_display_point(&display_map);
2712 self.select_columns(tail, position, goal_column, &display_map, cx);
2713 } else if let Some(mut pending) = self.selections.pending_anchor() {
2714 let buffer = self.buffer.read(cx).snapshot(cx);
2715 let head;
2716 let tail;
2717 let mode = self.selections.pending_mode().unwrap();
2718 match &mode {
2719 SelectMode::Character => {
2720 head = position.to_point(&display_map);
2721 tail = pending.tail().to_point(&buffer);
2722 }
2723 SelectMode::Word(original_range) => {
2724 let original_display_range = original_range.start.to_display_point(&display_map)
2725 ..original_range.end.to_display_point(&display_map);
2726 let original_buffer_range = original_display_range.start.to_point(&display_map)
2727 ..original_display_range.end.to_point(&display_map);
2728 if movement::is_inside_word(&display_map, position)
2729 || original_display_range.contains(&position)
2730 {
2731 let word_range = movement::surrounding_word(&display_map, position);
2732 if word_range.start < original_display_range.start {
2733 head = word_range.start.to_point(&display_map);
2734 } else {
2735 head = word_range.end.to_point(&display_map);
2736 }
2737 } else {
2738 head = position.to_point(&display_map);
2739 }
2740
2741 if head <= original_buffer_range.start {
2742 tail = original_buffer_range.end;
2743 } else {
2744 tail = original_buffer_range.start;
2745 }
2746 }
2747 SelectMode::Line(original_range) => {
2748 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2749
2750 let position = display_map
2751 .clip_point(position, Bias::Left)
2752 .to_point(&display_map);
2753 let line_start = display_map.prev_line_boundary(position).0;
2754 let next_line_start = buffer.clip_point(
2755 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2756 Bias::Left,
2757 );
2758
2759 if line_start < original_range.start {
2760 head = line_start
2761 } else {
2762 head = next_line_start
2763 }
2764
2765 if head <= original_range.start {
2766 tail = original_range.end;
2767 } else {
2768 tail = original_range.start;
2769 }
2770 }
2771 SelectMode::All => {
2772 return;
2773 }
2774 };
2775
2776 if head < tail {
2777 pending.start = buffer.anchor_before(head);
2778 pending.end = buffer.anchor_before(tail);
2779 pending.reversed = true;
2780 } else {
2781 pending.start = buffer.anchor_before(tail);
2782 pending.end = buffer.anchor_before(head);
2783 pending.reversed = false;
2784 }
2785
2786 self.change_selections(None, cx, |s| {
2787 s.set_pending(pending, mode);
2788 });
2789 } else {
2790 log::error!("update_selection dispatched with no pending selection");
2791 return;
2792 }
2793
2794 self.apply_scroll_delta(scroll_delta, cx);
2795 cx.notify();
2796 }
2797
2798 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2799 self.columnar_selection_tail.take();
2800 if self.selections.pending_anchor().is_some() {
2801 let selections = self.selections.all::<usize>(cx);
2802 self.change_selections(None, cx, |s| {
2803 s.select(selections);
2804 s.clear_pending();
2805 });
2806 }
2807 }
2808
2809 fn select_columns(
2810 &mut self,
2811 tail: DisplayPoint,
2812 head: DisplayPoint,
2813 goal_column: u32,
2814 display_map: &DisplaySnapshot,
2815 cx: &mut ViewContext<Self>,
2816 ) {
2817 let start_row = cmp::min(tail.row(), head.row());
2818 let end_row = cmp::max(tail.row(), head.row());
2819 let start_column = cmp::min(tail.column(), goal_column);
2820 let end_column = cmp::max(tail.column(), goal_column);
2821 let reversed = start_column < tail.column();
2822
2823 let selection_ranges = (start_row.0..=end_row.0)
2824 .map(DisplayRow)
2825 .filter_map(|row| {
2826 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2827 let start = display_map
2828 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2829 .to_point(display_map);
2830 let end = display_map
2831 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2832 .to_point(display_map);
2833 if reversed {
2834 Some(end..start)
2835 } else {
2836 Some(start..end)
2837 }
2838 } else {
2839 None
2840 }
2841 })
2842 .collect::<Vec<_>>();
2843
2844 self.change_selections(None, cx, |s| {
2845 s.select_ranges(selection_ranges);
2846 });
2847 cx.notify();
2848 }
2849
2850 pub fn has_pending_nonempty_selection(&self) -> bool {
2851 let pending_nonempty_selection = match self.selections.pending_anchor() {
2852 Some(Selection { start, end, .. }) => start != end,
2853 None => false,
2854 };
2855
2856 pending_nonempty_selection
2857 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2858 }
2859
2860 pub fn has_pending_selection(&self) -> bool {
2861 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2862 }
2863
2864 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2865 if self.clear_clicked_diff_hunks(cx) {
2866 cx.notify();
2867 return;
2868 }
2869 if self.dismiss_menus_and_popups(true, cx) {
2870 return;
2871 }
2872
2873 if self.mode == EditorMode::Full {
2874 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2875 return;
2876 }
2877 }
2878
2879 cx.propagate();
2880 }
2881
2882 pub fn dismiss_menus_and_popups(
2883 &mut self,
2884 should_report_inline_completion_event: bool,
2885 cx: &mut ViewContext<Self>,
2886 ) -> bool {
2887 if self.take_rename(false, cx).is_some() {
2888 return true;
2889 }
2890
2891 if hide_hover(self, cx) {
2892 return true;
2893 }
2894
2895 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2896 return true;
2897 }
2898
2899 if self.hide_context_menu(cx).is_some() {
2900 return true;
2901 }
2902
2903 if self.mouse_context_menu.take().is_some() {
2904 return true;
2905 }
2906
2907 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2908 return true;
2909 }
2910
2911 if self.snippet_stack.pop().is_some() {
2912 return true;
2913 }
2914
2915 if self.mode == EditorMode::Full {
2916 if self.active_diagnostics.is_some() {
2917 self.dismiss_diagnostics(cx);
2918 return true;
2919 }
2920 }
2921
2922 false
2923 }
2924
2925 fn linked_editing_ranges_for(
2926 &self,
2927 selection: Range<text::Anchor>,
2928 cx: &AppContext,
2929 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2930 if self.linked_edit_ranges.is_empty() {
2931 return None;
2932 }
2933 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2934 selection.end.buffer_id.and_then(|end_buffer_id| {
2935 if selection.start.buffer_id != Some(end_buffer_id) {
2936 return None;
2937 }
2938 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2939 let snapshot = buffer.read(cx).snapshot();
2940 self.linked_edit_ranges
2941 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2942 .map(|ranges| (ranges, snapshot, buffer))
2943 })?;
2944 use text::ToOffset as TO;
2945 // find offset from the start of current range to current cursor position
2946 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2947
2948 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2949 let start_difference = start_offset - start_byte_offset;
2950 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2951 let end_difference = end_offset - start_byte_offset;
2952 // Current range has associated linked ranges.
2953 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2954 for range in linked_ranges.iter() {
2955 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2956 let end_offset = start_offset + end_difference;
2957 let start_offset = start_offset + start_difference;
2958 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2959 continue;
2960 }
2961 let start = buffer_snapshot.anchor_after(start_offset);
2962 let end = buffer_snapshot.anchor_after(end_offset);
2963 linked_edits
2964 .entry(buffer.clone())
2965 .or_default()
2966 .push(start..end);
2967 }
2968 Some(linked_edits)
2969 }
2970
2971 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2972 let text: Arc<str> = text.into();
2973
2974 if self.read_only(cx) {
2975 return;
2976 }
2977
2978 let selections = self.selections.all_adjusted(cx);
2979 let mut bracket_inserted = false;
2980 let mut edits = Vec::new();
2981 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2982 let mut new_selections = Vec::with_capacity(selections.len());
2983 let mut new_autoclose_regions = Vec::new();
2984 let snapshot = self.buffer.read(cx).read(cx);
2985
2986 for (selection, autoclose_region) in
2987 self.selections_with_autoclose_regions(selections, &snapshot)
2988 {
2989 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2990 // Determine if the inserted text matches the opening or closing
2991 // bracket of any of this language's bracket pairs.
2992 let mut bracket_pair = None;
2993 let mut is_bracket_pair_start = false;
2994 let mut is_bracket_pair_end = false;
2995 if !text.is_empty() {
2996 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2997 // and they are removing the character that triggered IME popup.
2998 for (pair, enabled) in scope.brackets() {
2999 if !pair.close && !pair.surround {
3000 continue;
3001 }
3002
3003 if enabled && pair.start.ends_with(text.as_ref()) {
3004 bracket_pair = Some(pair.clone());
3005 is_bracket_pair_start = true;
3006 break;
3007 }
3008 if pair.end.as_str() == text.as_ref() {
3009 bracket_pair = Some(pair.clone());
3010 is_bracket_pair_end = true;
3011 break;
3012 }
3013 }
3014 }
3015
3016 if let Some(bracket_pair) = bracket_pair {
3017 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3018 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3019 let auto_surround =
3020 self.use_auto_surround && snapshot_settings.use_auto_surround;
3021 if selection.is_empty() {
3022 if is_bracket_pair_start {
3023 let prefix_len = bracket_pair.start.len() - text.len();
3024
3025 // If the inserted text is a suffix of an opening bracket and the
3026 // selection is preceded by the rest of the opening bracket, then
3027 // insert the closing bracket.
3028 let following_text_allows_autoclose = snapshot
3029 .chars_at(selection.start)
3030 .next()
3031 .map_or(true, |c| scope.should_autoclose_before(c));
3032 let preceding_text_matches_prefix = prefix_len == 0
3033 || (selection.start.column >= (prefix_len as u32)
3034 && snapshot.contains_str_at(
3035 Point::new(
3036 selection.start.row,
3037 selection.start.column - (prefix_len as u32),
3038 ),
3039 &bracket_pair.start[..prefix_len],
3040 ));
3041
3042 if autoclose
3043 && bracket_pair.close
3044 && following_text_allows_autoclose
3045 && preceding_text_matches_prefix
3046 {
3047 let anchor = snapshot.anchor_before(selection.end);
3048 new_selections.push((selection.map(|_| anchor), text.len()));
3049 new_autoclose_regions.push((
3050 anchor,
3051 text.len(),
3052 selection.id,
3053 bracket_pair.clone(),
3054 ));
3055 edits.push((
3056 selection.range(),
3057 format!("{}{}", text, bracket_pair.end).into(),
3058 ));
3059 bracket_inserted = true;
3060 continue;
3061 }
3062 }
3063
3064 if let Some(region) = autoclose_region {
3065 // If the selection is followed by an auto-inserted closing bracket,
3066 // then don't insert that closing bracket again; just move the selection
3067 // past the closing bracket.
3068 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3069 && text.as_ref() == region.pair.end.as_str();
3070 if should_skip {
3071 let anchor = snapshot.anchor_after(selection.end);
3072 new_selections
3073 .push((selection.map(|_| anchor), region.pair.end.len()));
3074 continue;
3075 }
3076 }
3077
3078 let always_treat_brackets_as_autoclosed = snapshot
3079 .settings_at(selection.start, cx)
3080 .always_treat_brackets_as_autoclosed;
3081 if always_treat_brackets_as_autoclosed
3082 && is_bracket_pair_end
3083 && snapshot.contains_str_at(selection.end, text.as_ref())
3084 {
3085 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3086 // and the inserted text is a closing bracket and the selection is followed
3087 // by the closing bracket then move the selection past the closing bracket.
3088 let anchor = snapshot.anchor_after(selection.end);
3089 new_selections.push((selection.map(|_| anchor), text.len()));
3090 continue;
3091 }
3092 }
3093 // If an opening bracket is 1 character long and is typed while
3094 // text is selected, then surround that text with the bracket pair.
3095 else if auto_surround
3096 && bracket_pair.surround
3097 && is_bracket_pair_start
3098 && bracket_pair.start.chars().count() == 1
3099 {
3100 edits.push((selection.start..selection.start, text.clone()));
3101 edits.push((
3102 selection.end..selection.end,
3103 bracket_pair.end.as_str().into(),
3104 ));
3105 bracket_inserted = true;
3106 new_selections.push((
3107 Selection {
3108 id: selection.id,
3109 start: snapshot.anchor_after(selection.start),
3110 end: snapshot.anchor_before(selection.end),
3111 reversed: selection.reversed,
3112 goal: selection.goal,
3113 },
3114 0,
3115 ));
3116 continue;
3117 }
3118 }
3119 }
3120
3121 if self.auto_replace_emoji_shortcode
3122 && selection.is_empty()
3123 && text.as_ref().ends_with(':')
3124 {
3125 if let Some(possible_emoji_short_code) =
3126 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3127 {
3128 if !possible_emoji_short_code.is_empty() {
3129 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3130 let emoji_shortcode_start = Point::new(
3131 selection.start.row,
3132 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3133 );
3134
3135 // Remove shortcode from buffer
3136 edits.push((
3137 emoji_shortcode_start..selection.start,
3138 "".to_string().into(),
3139 ));
3140 new_selections.push((
3141 Selection {
3142 id: selection.id,
3143 start: snapshot.anchor_after(emoji_shortcode_start),
3144 end: snapshot.anchor_before(selection.start),
3145 reversed: selection.reversed,
3146 goal: selection.goal,
3147 },
3148 0,
3149 ));
3150
3151 // Insert emoji
3152 let selection_start_anchor = snapshot.anchor_after(selection.start);
3153 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3154 edits.push((selection.start..selection.end, emoji.to_string().into()));
3155
3156 continue;
3157 }
3158 }
3159 }
3160 }
3161
3162 // If not handling any auto-close operation, then just replace the selected
3163 // text with the given input and move the selection to the end of the
3164 // newly inserted text.
3165 let anchor = snapshot.anchor_after(selection.end);
3166 if !self.linked_edit_ranges.is_empty() {
3167 let start_anchor = snapshot.anchor_before(selection.start);
3168
3169 let is_word_char = text.chars().next().map_or(true, |char| {
3170 let scope = snapshot.language_scope_at(start_anchor.to_offset(&snapshot));
3171 let kind = char_kind(&scope, char);
3172
3173 kind == CharKind::Word
3174 });
3175
3176 if is_word_char {
3177 if let Some(ranges) = self
3178 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3179 {
3180 for (buffer, edits) in ranges {
3181 linked_edits
3182 .entry(buffer.clone())
3183 .or_default()
3184 .extend(edits.into_iter().map(|range| (range, text.clone())));
3185 }
3186 }
3187 }
3188 }
3189
3190 new_selections.push((selection.map(|_| anchor), 0));
3191 edits.push((selection.start..selection.end, text.clone()));
3192 }
3193
3194 drop(snapshot);
3195
3196 self.transact(cx, |this, cx| {
3197 this.buffer.update(cx, |buffer, cx| {
3198 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3199 });
3200 for (buffer, edits) in linked_edits {
3201 buffer.update(cx, |buffer, cx| {
3202 let snapshot = buffer.snapshot();
3203 let edits = edits
3204 .into_iter()
3205 .map(|(range, text)| {
3206 use text::ToPoint as TP;
3207 let end_point = TP::to_point(&range.end, &snapshot);
3208 let start_point = TP::to_point(&range.start, &snapshot);
3209 (start_point..end_point, text)
3210 })
3211 .sorted_by_key(|(range, _)| range.start)
3212 .collect::<Vec<_>>();
3213 buffer.edit(edits, None, cx);
3214 })
3215 }
3216 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3217 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3218 let snapshot = this.buffer.read(cx).read(cx);
3219 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3220 .zip(new_selection_deltas)
3221 .map(|(selection, delta)| Selection {
3222 id: selection.id,
3223 start: selection.start + delta,
3224 end: selection.end + delta,
3225 reversed: selection.reversed,
3226 goal: SelectionGoal::None,
3227 })
3228 .collect::<Vec<_>>();
3229
3230 let mut i = 0;
3231 for (position, delta, selection_id, pair) in new_autoclose_regions {
3232 let position = position.to_offset(&snapshot) + delta;
3233 let start = snapshot.anchor_before(position);
3234 let end = snapshot.anchor_after(position);
3235 while let Some(existing_state) = this.autoclose_regions.get(i) {
3236 match existing_state.range.start.cmp(&start, &snapshot) {
3237 Ordering::Less => i += 1,
3238 Ordering::Greater => break,
3239 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3240 Ordering::Less => i += 1,
3241 Ordering::Equal => break,
3242 Ordering::Greater => break,
3243 },
3244 }
3245 }
3246 this.autoclose_regions.insert(
3247 i,
3248 AutocloseRegion {
3249 selection_id,
3250 range: start..end,
3251 pair,
3252 },
3253 );
3254 }
3255
3256 drop(snapshot);
3257 let had_active_inline_completion = this.has_active_inline_completion(cx);
3258 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3259 s.select(new_selections)
3260 });
3261
3262 if !bracket_inserted && EditorSettings::get_global(cx).use_on_type_format {
3263 if let Some(on_type_format_task) =
3264 this.trigger_on_type_formatting(text.to_string(), cx)
3265 {
3266 on_type_format_task.detach_and_log_err(cx);
3267 }
3268 }
3269
3270 let editor_settings = EditorSettings::get_global(cx);
3271 if bracket_inserted
3272 && (editor_settings.auto_signature_help
3273 || editor_settings.show_signature_help_after_edits)
3274 {
3275 this.show_signature_help(&ShowSignatureHelp, cx);
3276 }
3277
3278 let trigger_in_words = !had_active_inline_completion;
3279 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3280 linked_editing_ranges::refresh_linked_ranges(this, cx);
3281 this.refresh_inline_completion(true, cx);
3282 });
3283 }
3284
3285 fn find_possible_emoji_shortcode_at_position(
3286 snapshot: &MultiBufferSnapshot,
3287 position: Point,
3288 ) -> Option<String> {
3289 let mut chars = Vec::new();
3290 let mut found_colon = false;
3291 for char in snapshot.reversed_chars_at(position).take(100) {
3292 // Found a possible emoji shortcode in the middle of the buffer
3293 if found_colon {
3294 if char.is_whitespace() {
3295 chars.reverse();
3296 return Some(chars.iter().collect());
3297 }
3298 // If the previous character is not a whitespace, we are in the middle of a word
3299 // and we only want to complete the shortcode if the word is made up of other emojis
3300 let mut containing_word = String::new();
3301 for ch in snapshot
3302 .reversed_chars_at(position)
3303 .skip(chars.len() + 1)
3304 .take(100)
3305 {
3306 if ch.is_whitespace() {
3307 break;
3308 }
3309 containing_word.push(ch);
3310 }
3311 let containing_word = containing_word.chars().rev().collect::<String>();
3312 if util::word_consists_of_emojis(containing_word.as_str()) {
3313 chars.reverse();
3314 return Some(chars.iter().collect());
3315 }
3316 }
3317
3318 if char.is_whitespace() || !char.is_ascii() {
3319 return None;
3320 }
3321 if char == ':' {
3322 found_colon = true;
3323 } else {
3324 chars.push(char);
3325 }
3326 }
3327 // Found a possible emoji shortcode at the beginning of the buffer
3328 chars.reverse();
3329 Some(chars.iter().collect())
3330 }
3331
3332 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3333 self.transact(cx, |this, cx| {
3334 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3335 let selections = this.selections.all::<usize>(cx);
3336 let multi_buffer = this.buffer.read(cx);
3337 let buffer = multi_buffer.snapshot(cx);
3338 selections
3339 .iter()
3340 .map(|selection| {
3341 let start_point = selection.start.to_point(&buffer);
3342 let mut indent =
3343 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3344 indent.len = cmp::min(indent.len, start_point.column);
3345 let start = selection.start;
3346 let end = selection.end;
3347 let selection_is_empty = start == end;
3348 let language_scope = buffer.language_scope_at(start);
3349 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3350 &language_scope
3351 {
3352 let leading_whitespace_len = buffer
3353 .reversed_chars_at(start)
3354 .take_while(|c| c.is_whitespace() && *c != '\n')
3355 .map(|c| c.len_utf8())
3356 .sum::<usize>();
3357
3358 let trailing_whitespace_len = buffer
3359 .chars_at(end)
3360 .take_while(|c| c.is_whitespace() && *c != '\n')
3361 .map(|c| c.len_utf8())
3362 .sum::<usize>();
3363
3364 let insert_extra_newline =
3365 language.brackets().any(|(pair, enabled)| {
3366 let pair_start = pair.start.trim_end();
3367 let pair_end = pair.end.trim_start();
3368
3369 enabled
3370 && pair.newline
3371 && buffer.contains_str_at(
3372 end + trailing_whitespace_len,
3373 pair_end,
3374 )
3375 && buffer.contains_str_at(
3376 (start - leading_whitespace_len)
3377 .saturating_sub(pair_start.len()),
3378 pair_start,
3379 )
3380 });
3381
3382 // Comment extension on newline is allowed only for cursor selections
3383 let comment_delimiter = maybe!({
3384 if !selection_is_empty {
3385 return None;
3386 }
3387
3388 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3389 return None;
3390 }
3391
3392 let delimiters = language.line_comment_prefixes();
3393 let max_len_of_delimiter =
3394 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3395 let (snapshot, range) =
3396 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3397
3398 let mut index_of_first_non_whitespace = 0;
3399 let comment_candidate = snapshot
3400 .chars_for_range(range)
3401 .skip_while(|c| {
3402 let should_skip = c.is_whitespace();
3403 if should_skip {
3404 index_of_first_non_whitespace += 1;
3405 }
3406 should_skip
3407 })
3408 .take(max_len_of_delimiter)
3409 .collect::<String>();
3410 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3411 comment_candidate.starts_with(comment_prefix.as_ref())
3412 })?;
3413 let cursor_is_placed_after_comment_marker =
3414 index_of_first_non_whitespace + comment_prefix.len()
3415 <= start_point.column as usize;
3416 if cursor_is_placed_after_comment_marker {
3417 Some(comment_prefix.clone())
3418 } else {
3419 None
3420 }
3421 });
3422 (comment_delimiter, insert_extra_newline)
3423 } else {
3424 (None, false)
3425 };
3426
3427 let capacity_for_delimiter = comment_delimiter
3428 .as_deref()
3429 .map(str::len)
3430 .unwrap_or_default();
3431 let mut new_text =
3432 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3433 new_text.push_str("\n");
3434 new_text.extend(indent.chars());
3435 if let Some(delimiter) = &comment_delimiter {
3436 new_text.push_str(&delimiter);
3437 }
3438 if insert_extra_newline {
3439 new_text = new_text.repeat(2);
3440 }
3441
3442 let anchor = buffer.anchor_after(end);
3443 let new_selection = selection.map(|_| anchor);
3444 (
3445 (start..end, new_text),
3446 (insert_extra_newline, new_selection),
3447 )
3448 })
3449 .unzip()
3450 };
3451
3452 this.edit_with_autoindent(edits, cx);
3453 let buffer = this.buffer.read(cx).snapshot(cx);
3454 let new_selections = selection_fixup_info
3455 .into_iter()
3456 .map(|(extra_newline_inserted, new_selection)| {
3457 let mut cursor = new_selection.end.to_point(&buffer);
3458 if extra_newline_inserted {
3459 cursor.row -= 1;
3460 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3461 }
3462 new_selection.map(|_| cursor)
3463 })
3464 .collect();
3465
3466 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3467 this.refresh_inline_completion(true, cx);
3468 });
3469 }
3470
3471 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3472 let buffer = self.buffer.read(cx);
3473 let snapshot = buffer.snapshot(cx);
3474
3475 let mut edits = Vec::new();
3476 let mut rows = Vec::new();
3477
3478 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3479 let cursor = selection.head();
3480 let row = cursor.row;
3481
3482 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3483
3484 let newline = "\n".to_string();
3485 edits.push((start_of_line..start_of_line, newline));
3486
3487 rows.push(row + rows_inserted as u32);
3488 }
3489
3490 self.transact(cx, |editor, cx| {
3491 editor.edit(edits, cx);
3492
3493 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3494 let mut index = 0;
3495 s.move_cursors_with(|map, _, _| {
3496 let row = rows[index];
3497 index += 1;
3498
3499 let point = Point::new(row, 0);
3500 let boundary = map.next_line_boundary(point).1;
3501 let clipped = map.clip_point(boundary, Bias::Left);
3502
3503 (clipped, SelectionGoal::None)
3504 });
3505 });
3506
3507 let mut indent_edits = Vec::new();
3508 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3509 for row in rows {
3510 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3511 for (row, indent) in indents {
3512 if indent.len == 0 {
3513 continue;
3514 }
3515
3516 let text = match indent.kind {
3517 IndentKind::Space => " ".repeat(indent.len as usize),
3518 IndentKind::Tab => "\t".repeat(indent.len as usize),
3519 };
3520 let point = Point::new(row.0, 0);
3521 indent_edits.push((point..point, text));
3522 }
3523 }
3524 editor.edit(indent_edits, cx);
3525 });
3526 }
3527
3528 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3529 let buffer = self.buffer.read(cx);
3530 let snapshot = buffer.snapshot(cx);
3531
3532 let mut edits = Vec::new();
3533 let mut rows = Vec::new();
3534 let mut rows_inserted = 0;
3535
3536 for selection in self.selections.all_adjusted(cx) {
3537 let cursor = selection.head();
3538 let row = cursor.row;
3539
3540 let point = Point::new(row + 1, 0);
3541 let start_of_line = snapshot.clip_point(point, Bias::Left);
3542
3543 let newline = "\n".to_string();
3544 edits.push((start_of_line..start_of_line, newline));
3545
3546 rows_inserted += 1;
3547 rows.push(row + rows_inserted);
3548 }
3549
3550 self.transact(cx, |editor, cx| {
3551 editor.edit(edits, cx);
3552
3553 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3554 let mut index = 0;
3555 s.move_cursors_with(|map, _, _| {
3556 let row = rows[index];
3557 index += 1;
3558
3559 let point = Point::new(row, 0);
3560 let boundary = map.next_line_boundary(point).1;
3561 let clipped = map.clip_point(boundary, Bias::Left);
3562
3563 (clipped, SelectionGoal::None)
3564 });
3565 });
3566
3567 let mut indent_edits = Vec::new();
3568 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3569 for row in rows {
3570 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3571 for (row, indent) in indents {
3572 if indent.len == 0 {
3573 continue;
3574 }
3575
3576 let text = match indent.kind {
3577 IndentKind::Space => " ".repeat(indent.len as usize),
3578 IndentKind::Tab => "\t".repeat(indent.len as usize),
3579 };
3580 let point = Point::new(row.0, 0);
3581 indent_edits.push((point..point, text));
3582 }
3583 }
3584 editor.edit(indent_edits, cx);
3585 });
3586 }
3587
3588 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3589 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3590 original_indent_columns: Vec::new(),
3591 });
3592 self.insert_with_autoindent_mode(text, autoindent, cx);
3593 }
3594
3595 fn insert_with_autoindent_mode(
3596 &mut self,
3597 text: &str,
3598 autoindent_mode: Option<AutoindentMode>,
3599 cx: &mut ViewContext<Self>,
3600 ) {
3601 if self.read_only(cx) {
3602 return;
3603 }
3604
3605 let text: Arc<str> = text.into();
3606 self.transact(cx, |this, cx| {
3607 let old_selections = this.selections.all_adjusted(cx);
3608 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3609 let anchors = {
3610 let snapshot = buffer.read(cx);
3611 old_selections
3612 .iter()
3613 .map(|s| {
3614 let anchor = snapshot.anchor_after(s.head());
3615 s.map(|_| anchor)
3616 })
3617 .collect::<Vec<_>>()
3618 };
3619 buffer.edit(
3620 old_selections
3621 .iter()
3622 .map(|s| (s.start..s.end, text.clone())),
3623 autoindent_mode,
3624 cx,
3625 );
3626 anchors
3627 });
3628
3629 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3630 s.select_anchors(selection_anchors);
3631 })
3632 });
3633 }
3634
3635 fn trigger_completion_on_input(
3636 &mut self,
3637 text: &str,
3638 trigger_in_words: bool,
3639 cx: &mut ViewContext<Self>,
3640 ) {
3641 if self.is_completion_trigger(text, trigger_in_words, cx) {
3642 self.show_completions(
3643 &ShowCompletions {
3644 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3645 },
3646 cx,
3647 );
3648 } else {
3649 self.hide_context_menu(cx);
3650 }
3651 }
3652
3653 fn is_completion_trigger(
3654 &self,
3655 text: &str,
3656 trigger_in_words: bool,
3657 cx: &mut ViewContext<Self>,
3658 ) -> bool {
3659 let position = self.selections.newest_anchor().head();
3660 let multibuffer = self.buffer.read(cx);
3661 let Some(buffer) = position
3662 .buffer_id
3663 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3664 else {
3665 return false;
3666 };
3667
3668 if let Some(completion_provider) = &self.completion_provider {
3669 completion_provider.is_completion_trigger(
3670 &buffer,
3671 position.text_anchor,
3672 text,
3673 trigger_in_words,
3674 cx,
3675 )
3676 } else {
3677 false
3678 }
3679 }
3680
3681 /// If any empty selections is touching the start of its innermost containing autoclose
3682 /// region, expand it to select the brackets.
3683 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3684 let selections = self.selections.all::<usize>(cx);
3685 let buffer = self.buffer.read(cx).read(cx);
3686 let new_selections = self
3687 .selections_with_autoclose_regions(selections, &buffer)
3688 .map(|(mut selection, region)| {
3689 if !selection.is_empty() {
3690 return selection;
3691 }
3692
3693 if let Some(region) = region {
3694 let mut range = region.range.to_offset(&buffer);
3695 if selection.start == range.start && range.start >= region.pair.start.len() {
3696 range.start -= region.pair.start.len();
3697 if buffer.contains_str_at(range.start, ®ion.pair.start)
3698 && buffer.contains_str_at(range.end, ®ion.pair.end)
3699 {
3700 range.end += region.pair.end.len();
3701 selection.start = range.start;
3702 selection.end = range.end;
3703
3704 return selection;
3705 }
3706 }
3707 }
3708
3709 let always_treat_brackets_as_autoclosed = buffer
3710 .settings_at(selection.start, cx)
3711 .always_treat_brackets_as_autoclosed;
3712
3713 if !always_treat_brackets_as_autoclosed {
3714 return selection;
3715 }
3716
3717 if let Some(scope) = buffer.language_scope_at(selection.start) {
3718 for (pair, enabled) in scope.brackets() {
3719 if !enabled || !pair.close {
3720 continue;
3721 }
3722
3723 if buffer.contains_str_at(selection.start, &pair.end) {
3724 let pair_start_len = pair.start.len();
3725 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3726 {
3727 selection.start -= pair_start_len;
3728 selection.end += pair.end.len();
3729
3730 return selection;
3731 }
3732 }
3733 }
3734 }
3735
3736 selection
3737 })
3738 .collect();
3739
3740 drop(buffer);
3741 self.change_selections(None, cx, |selections| selections.select(new_selections));
3742 }
3743
3744 /// Iterate the given selections, and for each one, find the smallest surrounding
3745 /// autoclose region. This uses the ordering of the selections and the autoclose
3746 /// regions to avoid repeated comparisons.
3747 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3748 &'a self,
3749 selections: impl IntoIterator<Item = Selection<D>>,
3750 buffer: &'a MultiBufferSnapshot,
3751 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3752 let mut i = 0;
3753 let mut regions = self.autoclose_regions.as_slice();
3754 selections.into_iter().map(move |selection| {
3755 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3756
3757 let mut enclosing = None;
3758 while let Some(pair_state) = regions.get(i) {
3759 if pair_state.range.end.to_offset(buffer) < range.start {
3760 regions = ®ions[i + 1..];
3761 i = 0;
3762 } else if pair_state.range.start.to_offset(buffer) > range.end {
3763 break;
3764 } else {
3765 if pair_state.selection_id == selection.id {
3766 enclosing = Some(pair_state);
3767 }
3768 i += 1;
3769 }
3770 }
3771
3772 (selection.clone(), enclosing)
3773 })
3774 }
3775
3776 /// Remove any autoclose regions that no longer contain their selection.
3777 fn invalidate_autoclose_regions(
3778 &mut self,
3779 mut selections: &[Selection<Anchor>],
3780 buffer: &MultiBufferSnapshot,
3781 ) {
3782 self.autoclose_regions.retain(|state| {
3783 let mut i = 0;
3784 while let Some(selection) = selections.get(i) {
3785 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3786 selections = &selections[1..];
3787 continue;
3788 }
3789 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3790 break;
3791 }
3792 if selection.id == state.selection_id {
3793 return true;
3794 } else {
3795 i += 1;
3796 }
3797 }
3798 false
3799 });
3800 }
3801
3802 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3803 let offset = position.to_offset(buffer);
3804 let (word_range, kind) = buffer.surrounding_word(offset);
3805 if offset > word_range.start && kind == Some(CharKind::Word) {
3806 Some(
3807 buffer
3808 .text_for_range(word_range.start..offset)
3809 .collect::<String>(),
3810 )
3811 } else {
3812 None
3813 }
3814 }
3815
3816 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3817 self.refresh_inlay_hints(
3818 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3819 cx,
3820 );
3821 }
3822
3823 pub fn inlay_hints_enabled(&self) -> bool {
3824 self.inlay_hint_cache.enabled
3825 }
3826
3827 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3828 if self.project.is_none() || self.mode != EditorMode::Full {
3829 return;
3830 }
3831
3832 let reason_description = reason.description();
3833 let ignore_debounce = matches!(
3834 reason,
3835 InlayHintRefreshReason::SettingsChange(_)
3836 | InlayHintRefreshReason::Toggle(_)
3837 | InlayHintRefreshReason::ExcerptsRemoved(_)
3838 );
3839 let (invalidate_cache, required_languages) = match reason {
3840 InlayHintRefreshReason::Toggle(enabled) => {
3841 self.inlay_hint_cache.enabled = enabled;
3842 if enabled {
3843 (InvalidationStrategy::RefreshRequested, None)
3844 } else {
3845 self.inlay_hint_cache.clear();
3846 self.splice_inlays(
3847 self.visible_inlay_hints(cx)
3848 .iter()
3849 .map(|inlay| inlay.id)
3850 .collect(),
3851 Vec::new(),
3852 cx,
3853 );
3854 return;
3855 }
3856 }
3857 InlayHintRefreshReason::SettingsChange(new_settings) => {
3858 match self.inlay_hint_cache.update_settings(
3859 &self.buffer,
3860 new_settings,
3861 self.visible_inlay_hints(cx),
3862 cx,
3863 ) {
3864 ControlFlow::Break(Some(InlaySplice {
3865 to_remove,
3866 to_insert,
3867 })) => {
3868 self.splice_inlays(to_remove, to_insert, cx);
3869 return;
3870 }
3871 ControlFlow::Break(None) => return,
3872 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3873 }
3874 }
3875 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3876 if let Some(InlaySplice {
3877 to_remove,
3878 to_insert,
3879 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3880 {
3881 self.splice_inlays(to_remove, to_insert, cx);
3882 }
3883 return;
3884 }
3885 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3886 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3887 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3888 }
3889 InlayHintRefreshReason::RefreshRequested => {
3890 (InvalidationStrategy::RefreshRequested, None)
3891 }
3892 };
3893
3894 if let Some(InlaySplice {
3895 to_remove,
3896 to_insert,
3897 }) = self.inlay_hint_cache.spawn_hint_refresh(
3898 reason_description,
3899 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3900 invalidate_cache,
3901 ignore_debounce,
3902 cx,
3903 ) {
3904 self.splice_inlays(to_remove, to_insert, cx);
3905 }
3906 }
3907
3908 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3909 self.display_map
3910 .read(cx)
3911 .current_inlays()
3912 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3913 .cloned()
3914 .collect()
3915 }
3916
3917 pub fn excerpts_for_inlay_hints_query(
3918 &self,
3919 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3920 cx: &mut ViewContext<Editor>,
3921 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3922 let Some(project) = self.project.as_ref() else {
3923 return HashMap::default();
3924 };
3925 let project = project.read(cx);
3926 let multi_buffer = self.buffer().read(cx);
3927 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3928 let multi_buffer_visible_start = self
3929 .scroll_manager
3930 .anchor()
3931 .anchor
3932 .to_point(&multi_buffer_snapshot);
3933 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3934 multi_buffer_visible_start
3935 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3936 Bias::Left,
3937 );
3938 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3939 multi_buffer
3940 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3941 .into_iter()
3942 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3943 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3944 let buffer = buffer_handle.read(cx);
3945 let buffer_file = project::File::from_dyn(buffer.file())?;
3946 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3947 let worktree_entry = buffer_worktree
3948 .read(cx)
3949 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3950 if worktree_entry.is_ignored {
3951 return None;
3952 }
3953
3954 let language = buffer.language()?;
3955 if let Some(restrict_to_languages) = restrict_to_languages {
3956 if !restrict_to_languages.contains(language) {
3957 return None;
3958 }
3959 }
3960 Some((
3961 excerpt_id,
3962 (
3963 buffer_handle,
3964 buffer.version().clone(),
3965 excerpt_visible_range,
3966 ),
3967 ))
3968 })
3969 .collect()
3970 }
3971
3972 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3973 TextLayoutDetails {
3974 text_system: cx.text_system().clone(),
3975 editor_style: self.style.clone().unwrap(),
3976 rem_size: cx.rem_size(),
3977 scroll_anchor: self.scroll_manager.anchor(),
3978 visible_rows: self.visible_line_count(),
3979 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3980 }
3981 }
3982
3983 fn splice_inlays(
3984 &self,
3985 to_remove: Vec<InlayId>,
3986 to_insert: Vec<Inlay>,
3987 cx: &mut ViewContext<Self>,
3988 ) {
3989 self.display_map.update(cx, |display_map, cx| {
3990 display_map.splice_inlays(to_remove, to_insert, cx);
3991 });
3992 cx.notify();
3993 }
3994
3995 fn trigger_on_type_formatting(
3996 &self,
3997 input: String,
3998 cx: &mut ViewContext<Self>,
3999 ) -> Option<Task<Result<()>>> {
4000 if input.len() != 1 {
4001 return None;
4002 }
4003
4004 let project = self.project.as_ref()?;
4005 let position = self.selections.newest_anchor().head();
4006 let (buffer, buffer_position) = self
4007 .buffer
4008 .read(cx)
4009 .text_anchor_for_position(position, cx)?;
4010
4011 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4012 // hence we do LSP request & edit on host side only — add formats to host's history.
4013 let push_to_lsp_host_history = true;
4014 // If this is not the host, append its history with new edits.
4015 let push_to_client_history = project.read(cx).is_remote();
4016
4017 let on_type_formatting = project.update(cx, |project, cx| {
4018 project.on_type_format(
4019 buffer.clone(),
4020 buffer_position,
4021 input,
4022 push_to_lsp_host_history,
4023 cx,
4024 )
4025 });
4026 Some(cx.spawn(|editor, mut cx| async move {
4027 if let Some(transaction) = on_type_formatting.await? {
4028 if push_to_client_history {
4029 buffer
4030 .update(&mut cx, |buffer, _| {
4031 buffer.push_transaction(transaction, Instant::now());
4032 })
4033 .ok();
4034 }
4035 editor.update(&mut cx, |editor, cx| {
4036 editor.refresh_document_highlights(cx);
4037 })?;
4038 }
4039 Ok(())
4040 }))
4041 }
4042
4043 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4044 if self.pending_rename.is_some() {
4045 return;
4046 }
4047
4048 let Some(provider) = self.completion_provider.as_ref() else {
4049 return;
4050 };
4051
4052 let position = self.selections.newest_anchor().head();
4053 let (buffer, buffer_position) =
4054 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4055 output
4056 } else {
4057 return;
4058 };
4059
4060 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4061 let is_followup_invoke = {
4062 let context_menu_state = self.context_menu.read();
4063 matches!(
4064 context_menu_state.deref(),
4065 Some(ContextMenu::Completions(_))
4066 )
4067 };
4068 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4069 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4070 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(&trigger) => {
4071 CompletionTriggerKind::TRIGGER_CHARACTER
4072 }
4073
4074 _ => CompletionTriggerKind::INVOKED,
4075 };
4076 let completion_context = CompletionContext {
4077 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4078 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4079 Some(String::from(trigger))
4080 } else {
4081 None
4082 }
4083 }),
4084 trigger_kind,
4085 };
4086 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4087
4088 let id = post_inc(&mut self.next_completion_id);
4089 let task = cx.spawn(|this, mut cx| {
4090 async move {
4091 this.update(&mut cx, |this, _| {
4092 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4093 })?;
4094 let completions = completions.await.log_err();
4095 let menu = if let Some(completions) = completions {
4096 let mut menu = CompletionsMenu {
4097 id,
4098 initial_position: position,
4099 match_candidates: completions
4100 .iter()
4101 .enumerate()
4102 .map(|(id, completion)| {
4103 StringMatchCandidate::new(
4104 id,
4105 completion.label.text[completion.label.filter_range.clone()]
4106 .into(),
4107 )
4108 })
4109 .collect(),
4110 buffer: buffer.clone(),
4111 completions: Arc::new(RwLock::new(completions.into())),
4112 matches: Vec::new().into(),
4113 selected_item: 0,
4114 scroll_handle: UniformListScrollHandle::new(),
4115 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4116 DebouncedDelay::new(),
4117 )),
4118 };
4119 menu.filter(query.as_deref(), cx.background_executor().clone())
4120 .await;
4121
4122 if menu.matches.is_empty() {
4123 None
4124 } else {
4125 this.update(&mut cx, |editor, cx| {
4126 let completions = menu.completions.clone();
4127 let matches = menu.matches.clone();
4128
4129 let delay_ms = EditorSettings::get_global(cx)
4130 .completion_documentation_secondary_query_debounce;
4131 let delay = Duration::from_millis(delay_ms);
4132 editor
4133 .completion_documentation_pre_resolve_debounce
4134 .fire_new(delay, cx, |editor, cx| {
4135 CompletionsMenu::pre_resolve_completion_documentation(
4136 buffer,
4137 completions,
4138 matches,
4139 editor,
4140 cx,
4141 )
4142 });
4143 })
4144 .ok();
4145 Some(menu)
4146 }
4147 } else {
4148 None
4149 };
4150
4151 this.update(&mut cx, |this, cx| {
4152 let mut context_menu = this.context_menu.write();
4153 match context_menu.as_ref() {
4154 None => {}
4155
4156 Some(ContextMenu::Completions(prev_menu)) => {
4157 if prev_menu.id > id {
4158 return;
4159 }
4160 }
4161
4162 _ => return,
4163 }
4164
4165 if this.focus_handle.is_focused(cx) && menu.is_some() {
4166 let menu = menu.unwrap();
4167 *context_menu = Some(ContextMenu::Completions(menu));
4168 drop(context_menu);
4169 this.discard_inline_completion(false, cx);
4170 cx.notify();
4171 } else if this.completion_tasks.len() <= 1 {
4172 // If there are no more completion tasks and the last menu was
4173 // empty, we should hide it. If it was already hidden, we should
4174 // also show the copilot completion when available.
4175 drop(context_menu);
4176 if this.hide_context_menu(cx).is_none() {
4177 this.update_visible_inline_completion(cx);
4178 }
4179 }
4180 })?;
4181
4182 Ok::<_, anyhow::Error>(())
4183 }
4184 .log_err()
4185 });
4186
4187 self.completion_tasks.push((id, task));
4188 }
4189
4190 pub fn confirm_completion(
4191 &mut self,
4192 action: &ConfirmCompletion,
4193 cx: &mut ViewContext<Self>,
4194 ) -> Option<Task<Result<()>>> {
4195 use language::ToOffset as _;
4196
4197 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4198 menu
4199 } else {
4200 return None;
4201 };
4202
4203 let mat = completions_menu
4204 .matches
4205 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4206 let buffer_handle = completions_menu.buffer;
4207 let completions = completions_menu.completions.read();
4208 let completion = completions.get(mat.candidate_id)?;
4209 cx.stop_propagation();
4210
4211 let snippet;
4212 let text;
4213
4214 if completion.is_snippet() {
4215 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4216 text = snippet.as_ref().unwrap().text.clone();
4217 } else {
4218 snippet = None;
4219 text = completion.new_text.clone();
4220 };
4221 let selections = self.selections.all::<usize>(cx);
4222 let buffer = buffer_handle.read(cx);
4223 let old_range = completion.old_range.to_offset(buffer);
4224 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4225
4226 let newest_selection = self.selections.newest_anchor();
4227 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4228 return None;
4229 }
4230
4231 let lookbehind = newest_selection
4232 .start
4233 .text_anchor
4234 .to_offset(buffer)
4235 .saturating_sub(old_range.start);
4236 let lookahead = old_range
4237 .end
4238 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4239 let mut common_prefix_len = old_text
4240 .bytes()
4241 .zip(text.bytes())
4242 .take_while(|(a, b)| a == b)
4243 .count();
4244
4245 let snapshot = self.buffer.read(cx).snapshot(cx);
4246 let mut range_to_replace: Option<Range<isize>> = None;
4247 let mut ranges = Vec::new();
4248 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4249 for selection in &selections {
4250 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4251 let start = selection.start.saturating_sub(lookbehind);
4252 let end = selection.end + lookahead;
4253 if selection.id == newest_selection.id {
4254 range_to_replace = Some(
4255 ((start + common_prefix_len) as isize - selection.start as isize)
4256 ..(end as isize - selection.start as isize),
4257 );
4258 }
4259 ranges.push(start + common_prefix_len..end);
4260 } else {
4261 common_prefix_len = 0;
4262 ranges.clear();
4263 ranges.extend(selections.iter().map(|s| {
4264 if s.id == newest_selection.id {
4265 range_to_replace = Some(
4266 old_range.start.to_offset_utf16(&snapshot).0 as isize
4267 - selection.start as isize
4268 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4269 - selection.start as isize,
4270 );
4271 old_range.clone()
4272 } else {
4273 s.start..s.end
4274 }
4275 }));
4276 break;
4277 }
4278 if !self.linked_edit_ranges.is_empty() {
4279 let start_anchor = snapshot.anchor_before(selection.head());
4280 let end_anchor = snapshot.anchor_after(selection.tail());
4281 if let Some(ranges) = self
4282 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4283 {
4284 for (buffer, edits) in ranges {
4285 linked_edits.entry(buffer.clone()).or_default().extend(
4286 edits
4287 .into_iter()
4288 .map(|range| (range, text[common_prefix_len..].to_owned())),
4289 );
4290 }
4291 }
4292 }
4293 }
4294 let text = &text[common_prefix_len..];
4295
4296 cx.emit(EditorEvent::InputHandled {
4297 utf16_range_to_replace: range_to_replace,
4298 text: text.into(),
4299 });
4300
4301 self.transact(cx, |this, cx| {
4302 if let Some(mut snippet) = snippet {
4303 snippet.text = text.to_string();
4304 for tabstop in snippet.tabstops.iter_mut().flatten() {
4305 tabstop.start -= common_prefix_len as isize;
4306 tabstop.end -= common_prefix_len as isize;
4307 }
4308
4309 this.insert_snippet(&ranges, snippet, cx).log_err();
4310 } else {
4311 this.buffer.update(cx, |buffer, cx| {
4312 buffer.edit(
4313 ranges.iter().map(|range| (range.clone(), text)),
4314 this.autoindent_mode.clone(),
4315 cx,
4316 );
4317 });
4318 }
4319 for (buffer, edits) in linked_edits {
4320 buffer.update(cx, |buffer, cx| {
4321 let snapshot = buffer.snapshot();
4322 let edits = edits
4323 .into_iter()
4324 .map(|(range, text)| {
4325 use text::ToPoint as TP;
4326 let end_point = TP::to_point(&range.end, &snapshot);
4327 let start_point = TP::to_point(&range.start, &snapshot);
4328 (start_point..end_point, text)
4329 })
4330 .sorted_by_key(|(range, _)| range.start)
4331 .collect::<Vec<_>>();
4332 buffer.edit(edits, None, cx);
4333 })
4334 }
4335
4336 this.refresh_inline_completion(true, cx);
4337 });
4338
4339 if let Some(confirm) = completion.confirm.as_ref() {
4340 (confirm)(cx);
4341 }
4342
4343 if completion.show_new_completions_on_confirm {
4344 self.show_completions(&ShowCompletions { trigger: None }, cx);
4345 }
4346
4347 let provider = self.completion_provider.as_ref()?;
4348 let apply_edits = provider.apply_additional_edits_for_completion(
4349 buffer_handle,
4350 completion.clone(),
4351 true,
4352 cx,
4353 );
4354
4355 let editor_settings = EditorSettings::get_global(cx);
4356 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4357 // After the code completion is finished, users often want to know what signatures are needed.
4358 // so we should automatically call signature_help
4359 self.show_signature_help(&ShowSignatureHelp, cx);
4360 }
4361
4362 Some(cx.foreground_executor().spawn(async move {
4363 apply_edits.await?;
4364 Ok(())
4365 }))
4366 }
4367
4368 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4369 let mut context_menu = self.context_menu.write();
4370 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4371 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4372 // Toggle if we're selecting the same one
4373 *context_menu = None;
4374 cx.notify();
4375 return;
4376 } else {
4377 // Otherwise, clear it and start a new one
4378 *context_menu = None;
4379 cx.notify();
4380 }
4381 }
4382 drop(context_menu);
4383 let snapshot = self.snapshot(cx);
4384 let deployed_from_indicator = action.deployed_from_indicator;
4385 let mut task = self.code_actions_task.take();
4386 let action = action.clone();
4387 cx.spawn(|editor, mut cx| async move {
4388 while let Some(prev_task) = task {
4389 prev_task.await;
4390 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4391 }
4392
4393 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4394 if editor.focus_handle.is_focused(cx) {
4395 let multibuffer_point = action
4396 .deployed_from_indicator
4397 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4398 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4399 let (buffer, buffer_row) = snapshot
4400 .buffer_snapshot
4401 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4402 .and_then(|(buffer_snapshot, range)| {
4403 editor
4404 .buffer
4405 .read(cx)
4406 .buffer(buffer_snapshot.remote_id())
4407 .map(|buffer| (buffer, range.start.row))
4408 })?;
4409 let (_, code_actions) = editor
4410 .available_code_actions
4411 .clone()
4412 .and_then(|(location, code_actions)| {
4413 let snapshot = location.buffer.read(cx).snapshot();
4414 let point_range = location.range.to_point(&snapshot);
4415 let point_range = point_range.start.row..=point_range.end.row;
4416 if point_range.contains(&buffer_row) {
4417 Some((location, code_actions))
4418 } else {
4419 None
4420 }
4421 })
4422 .unzip();
4423 let buffer_id = buffer.read(cx).remote_id();
4424 let tasks = editor
4425 .tasks
4426 .get(&(buffer_id, buffer_row))
4427 .map(|t| Arc::new(t.to_owned()));
4428 if tasks.is_none() && code_actions.is_none() {
4429 return None;
4430 }
4431
4432 editor.completion_tasks.clear();
4433 editor.discard_inline_completion(false, cx);
4434 let task_context =
4435 tasks
4436 .as_ref()
4437 .zip(editor.project.clone())
4438 .map(|(tasks, project)| {
4439 let position = Point::new(buffer_row, tasks.column);
4440 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4441 let location = Location {
4442 buffer: buffer.clone(),
4443 range: range_start..range_start,
4444 };
4445 // Fill in the environmental variables from the tree-sitter captures
4446 let mut captured_task_variables = TaskVariables::default();
4447 for (capture_name, value) in tasks.extra_variables.clone() {
4448 captured_task_variables.insert(
4449 task::VariableName::Custom(capture_name.into()),
4450 value.clone(),
4451 );
4452 }
4453 project.update(cx, |project, cx| {
4454 project.task_context_for_location(
4455 captured_task_variables,
4456 location,
4457 cx,
4458 )
4459 })
4460 });
4461
4462 Some(cx.spawn(|editor, mut cx| async move {
4463 let task_context = match task_context {
4464 Some(task_context) => task_context.await,
4465 None => None,
4466 };
4467 let resolved_tasks =
4468 tasks.zip(task_context).map(|(tasks, task_context)| {
4469 Arc::new(ResolvedTasks {
4470 templates: tasks
4471 .templates
4472 .iter()
4473 .filter_map(|(kind, template)| {
4474 template
4475 .resolve_task(&kind.to_id_base(), &task_context)
4476 .map(|task| (kind.clone(), task))
4477 })
4478 .collect(),
4479 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4480 multibuffer_point.row,
4481 tasks.column,
4482 )),
4483 })
4484 });
4485 let spawn_straight_away = resolved_tasks
4486 .as_ref()
4487 .map_or(false, |tasks| tasks.templates.len() == 1)
4488 && code_actions
4489 .as_ref()
4490 .map_or(true, |actions| actions.is_empty());
4491 if let Some(task) = editor
4492 .update(&mut cx, |editor, cx| {
4493 *editor.context_menu.write() =
4494 Some(ContextMenu::CodeActions(CodeActionsMenu {
4495 buffer,
4496 actions: CodeActionContents {
4497 tasks: resolved_tasks,
4498 actions: code_actions,
4499 },
4500 selected_item: Default::default(),
4501 scroll_handle: UniformListScrollHandle::default(),
4502 deployed_from_indicator,
4503 }));
4504 if spawn_straight_away {
4505 if let Some(task) = editor.confirm_code_action(
4506 &ConfirmCodeAction { item_ix: Some(0) },
4507 cx,
4508 ) {
4509 cx.notify();
4510 return task;
4511 }
4512 }
4513 cx.notify();
4514 Task::ready(Ok(()))
4515 })
4516 .ok()
4517 {
4518 task.await
4519 } else {
4520 Ok(())
4521 }
4522 }))
4523 } else {
4524 Some(Task::ready(Ok(())))
4525 }
4526 })?;
4527 if let Some(task) = spawned_test_task {
4528 task.await?;
4529 }
4530
4531 Ok::<_, anyhow::Error>(())
4532 })
4533 .detach_and_log_err(cx);
4534 }
4535
4536 pub fn confirm_code_action(
4537 &mut self,
4538 action: &ConfirmCodeAction,
4539 cx: &mut ViewContext<Self>,
4540 ) -> Option<Task<Result<()>>> {
4541 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4542 menu
4543 } else {
4544 return None;
4545 };
4546 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4547 let action = actions_menu.actions.get(action_ix)?;
4548 let title = action.label();
4549 let buffer = actions_menu.buffer;
4550 let workspace = self.workspace()?;
4551
4552 match action {
4553 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4554 workspace.update(cx, |workspace, cx| {
4555 workspace::tasks::schedule_resolved_task(
4556 workspace,
4557 task_source_kind,
4558 resolved_task,
4559 false,
4560 cx,
4561 );
4562
4563 Some(Task::ready(Ok(())))
4564 })
4565 }
4566 CodeActionsItem::CodeAction(action) => {
4567 let apply_code_actions = workspace
4568 .read(cx)
4569 .project()
4570 .clone()
4571 .update(cx, |project, cx| {
4572 project.apply_code_action(buffer, action, true, cx)
4573 });
4574 let workspace = workspace.downgrade();
4575 Some(cx.spawn(|editor, cx| async move {
4576 let project_transaction = apply_code_actions.await?;
4577 Self::open_project_transaction(
4578 &editor,
4579 workspace,
4580 project_transaction,
4581 title,
4582 cx,
4583 )
4584 .await
4585 }))
4586 }
4587 }
4588 }
4589
4590 pub async fn open_project_transaction(
4591 this: &WeakView<Editor>,
4592 workspace: WeakView<Workspace>,
4593 transaction: ProjectTransaction,
4594 title: String,
4595 mut cx: AsyncWindowContext,
4596 ) -> Result<()> {
4597 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4598
4599 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4600 cx.update(|cx| {
4601 entries.sort_unstable_by_key(|(buffer, _)| {
4602 buffer.read(cx).file().map(|f| f.path().clone())
4603 });
4604 })?;
4605
4606 // If the project transaction's edits are all contained within this editor, then
4607 // avoid opening a new editor to display them.
4608
4609 if let Some((buffer, transaction)) = entries.first() {
4610 if entries.len() == 1 {
4611 let excerpt = this.update(&mut cx, |editor, cx| {
4612 editor
4613 .buffer()
4614 .read(cx)
4615 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4616 })?;
4617 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4618 if excerpted_buffer == *buffer {
4619 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4620 let excerpt_range = excerpt_range.to_offset(buffer);
4621 buffer
4622 .edited_ranges_for_transaction::<usize>(transaction)
4623 .all(|range| {
4624 excerpt_range.start <= range.start
4625 && excerpt_range.end >= range.end
4626 })
4627 })?;
4628
4629 if all_edits_within_excerpt {
4630 return Ok(());
4631 }
4632 }
4633 }
4634 }
4635 } else {
4636 return Ok(());
4637 }
4638
4639 let mut ranges_to_highlight = Vec::new();
4640 let excerpt_buffer = cx.new_model(|cx| {
4641 let mut multibuffer =
4642 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4643 for (buffer_handle, transaction) in &entries {
4644 let buffer = buffer_handle.read(cx);
4645 ranges_to_highlight.extend(
4646 multibuffer.push_excerpts_with_context_lines(
4647 buffer_handle.clone(),
4648 buffer
4649 .edited_ranges_for_transaction::<usize>(transaction)
4650 .collect(),
4651 DEFAULT_MULTIBUFFER_CONTEXT,
4652 cx,
4653 ),
4654 );
4655 }
4656 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4657 multibuffer
4658 })?;
4659
4660 workspace.update(&mut cx, |workspace, cx| {
4661 let project = workspace.project().clone();
4662 let editor =
4663 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4664 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4665 editor.update(cx, |editor, cx| {
4666 editor.highlight_background::<Self>(
4667 &ranges_to_highlight,
4668 |theme| theme.editor_highlighted_line_background,
4669 cx,
4670 );
4671 });
4672 })?;
4673
4674 Ok(())
4675 }
4676
4677 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4678 let project = self.project.clone()?;
4679 let buffer = self.buffer.read(cx);
4680 let newest_selection = self.selections.newest_anchor().clone();
4681 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4682 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4683 if start_buffer != end_buffer {
4684 return None;
4685 }
4686
4687 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4688 cx.background_executor()
4689 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4690 .await;
4691
4692 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4693 project.code_actions(&start_buffer, start..end, cx)
4694 }) {
4695 code_actions.await
4696 } else {
4697 Vec::new()
4698 };
4699
4700 this.update(&mut cx, |this, cx| {
4701 this.available_code_actions = if actions.is_empty() {
4702 None
4703 } else {
4704 Some((
4705 Location {
4706 buffer: start_buffer,
4707 range: start..end,
4708 },
4709 actions.into(),
4710 ))
4711 };
4712 cx.notify();
4713 })
4714 .log_err();
4715 }));
4716 None
4717 }
4718
4719 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4720 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4721 self.show_git_blame_inline = false;
4722
4723 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4724 cx.background_executor().timer(delay).await;
4725
4726 this.update(&mut cx, |this, cx| {
4727 this.show_git_blame_inline = true;
4728 cx.notify();
4729 })
4730 .log_err();
4731 }));
4732 }
4733 }
4734
4735 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4736 if self.pending_rename.is_some() {
4737 return None;
4738 }
4739
4740 let project = self.project.clone()?;
4741 let buffer = self.buffer.read(cx);
4742 let newest_selection = self.selections.newest_anchor().clone();
4743 let cursor_position = newest_selection.head();
4744 let (cursor_buffer, cursor_buffer_position) =
4745 buffer.text_anchor_for_position(cursor_position, cx)?;
4746 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4747 if cursor_buffer != tail_buffer {
4748 return None;
4749 }
4750
4751 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4752 cx.background_executor()
4753 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4754 .await;
4755
4756 let highlights = if let Some(highlights) = project
4757 .update(&mut cx, |project, cx| {
4758 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4759 })
4760 .log_err()
4761 {
4762 highlights.await.log_err()
4763 } else {
4764 None
4765 };
4766
4767 if let Some(highlights) = highlights {
4768 this.update(&mut cx, |this, cx| {
4769 if this.pending_rename.is_some() {
4770 return;
4771 }
4772
4773 let buffer_id = cursor_position.buffer_id;
4774 let buffer = this.buffer.read(cx);
4775 if !buffer
4776 .text_anchor_for_position(cursor_position, cx)
4777 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4778 {
4779 return;
4780 }
4781
4782 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4783 let mut write_ranges = Vec::new();
4784 let mut read_ranges = Vec::new();
4785 for highlight in highlights {
4786 for (excerpt_id, excerpt_range) in
4787 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4788 {
4789 let start = highlight
4790 .range
4791 .start
4792 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4793 let end = highlight
4794 .range
4795 .end
4796 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4797 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4798 continue;
4799 }
4800
4801 let range = Anchor {
4802 buffer_id,
4803 excerpt_id: excerpt_id,
4804 text_anchor: start,
4805 }..Anchor {
4806 buffer_id,
4807 excerpt_id,
4808 text_anchor: end,
4809 };
4810 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4811 write_ranges.push(range);
4812 } else {
4813 read_ranges.push(range);
4814 }
4815 }
4816 }
4817
4818 this.highlight_background::<DocumentHighlightRead>(
4819 &read_ranges,
4820 |theme| theme.editor_document_highlight_read_background,
4821 cx,
4822 );
4823 this.highlight_background::<DocumentHighlightWrite>(
4824 &write_ranges,
4825 |theme| theme.editor_document_highlight_write_background,
4826 cx,
4827 );
4828 cx.notify();
4829 })
4830 .log_err();
4831 }
4832 }));
4833 None
4834 }
4835
4836 fn refresh_inline_completion(
4837 &mut self,
4838 debounce: bool,
4839 cx: &mut ViewContext<Self>,
4840 ) -> Option<()> {
4841 let provider = self.inline_completion_provider()?;
4842 let cursor = self.selections.newest_anchor().head();
4843 let (buffer, cursor_buffer_position) =
4844 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4845 if !self.show_inline_completions
4846 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4847 {
4848 self.discard_inline_completion(false, cx);
4849 return None;
4850 }
4851
4852 self.update_visible_inline_completion(cx);
4853 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4854 Some(())
4855 }
4856
4857 fn cycle_inline_completion(
4858 &mut self,
4859 direction: Direction,
4860 cx: &mut ViewContext<Self>,
4861 ) -> Option<()> {
4862 let provider = self.inline_completion_provider()?;
4863 let cursor = self.selections.newest_anchor().head();
4864 let (buffer, cursor_buffer_position) =
4865 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4866 if !self.show_inline_completions
4867 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4868 {
4869 return None;
4870 }
4871
4872 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4873 self.update_visible_inline_completion(cx);
4874
4875 Some(())
4876 }
4877
4878 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4879 if !self.has_active_inline_completion(cx) {
4880 self.refresh_inline_completion(false, cx);
4881 return;
4882 }
4883
4884 self.update_visible_inline_completion(cx);
4885 }
4886
4887 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4888 self.show_cursor_names(cx);
4889 }
4890
4891 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4892 self.show_cursor_names = true;
4893 cx.notify();
4894 cx.spawn(|this, mut cx| async move {
4895 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4896 this.update(&mut cx, |this, cx| {
4897 this.show_cursor_names = false;
4898 cx.notify()
4899 })
4900 .ok()
4901 })
4902 .detach();
4903 }
4904
4905 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4906 if self.has_active_inline_completion(cx) {
4907 self.cycle_inline_completion(Direction::Next, cx);
4908 } else {
4909 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4910 if is_copilot_disabled {
4911 cx.propagate();
4912 }
4913 }
4914 }
4915
4916 pub fn previous_inline_completion(
4917 &mut self,
4918 _: &PreviousInlineCompletion,
4919 cx: &mut ViewContext<Self>,
4920 ) {
4921 if self.has_active_inline_completion(cx) {
4922 self.cycle_inline_completion(Direction::Prev, cx);
4923 } else {
4924 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4925 if is_copilot_disabled {
4926 cx.propagate();
4927 }
4928 }
4929 }
4930
4931 pub fn accept_inline_completion(
4932 &mut self,
4933 _: &AcceptInlineCompletion,
4934 cx: &mut ViewContext<Self>,
4935 ) {
4936 let Some((completion, delete_range)) = self.take_active_inline_completion(cx) else {
4937 return;
4938 };
4939 if let Some(provider) = self.inline_completion_provider() {
4940 provider.accept(cx);
4941 }
4942
4943 cx.emit(EditorEvent::InputHandled {
4944 utf16_range_to_replace: None,
4945 text: completion.text.to_string().into(),
4946 });
4947
4948 if let Some(range) = delete_range {
4949 self.change_selections(None, cx, |s| s.select_ranges([range]))
4950 }
4951 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4952 self.refresh_inline_completion(true, cx);
4953 cx.notify();
4954 }
4955
4956 pub fn accept_partial_inline_completion(
4957 &mut self,
4958 _: &AcceptPartialInlineCompletion,
4959 cx: &mut ViewContext<Self>,
4960 ) {
4961 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4962 if let Some((completion, delete_range)) = self.take_active_inline_completion(cx) {
4963 let mut partial_completion = completion
4964 .text
4965 .chars()
4966 .by_ref()
4967 .take_while(|c| c.is_alphabetic())
4968 .collect::<String>();
4969 if partial_completion.is_empty() {
4970 partial_completion = completion
4971 .text
4972 .chars()
4973 .by_ref()
4974 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4975 .collect::<String>();
4976 }
4977
4978 cx.emit(EditorEvent::InputHandled {
4979 utf16_range_to_replace: None,
4980 text: partial_completion.clone().into(),
4981 });
4982
4983 if let Some(range) = delete_range {
4984 self.change_selections(None, cx, |s| s.select_ranges([range]))
4985 }
4986 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4987
4988 self.refresh_inline_completion(true, cx);
4989 cx.notify();
4990 }
4991 }
4992 }
4993
4994 fn discard_inline_completion(
4995 &mut self,
4996 should_report_inline_completion_event: bool,
4997 cx: &mut ViewContext<Self>,
4998 ) -> bool {
4999 if let Some(provider) = self.inline_completion_provider() {
5000 provider.discard(should_report_inline_completion_event, cx);
5001 }
5002
5003 self.take_active_inline_completion(cx).is_some()
5004 }
5005
5006 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5007 if let Some(completion) = self.active_inline_completion.as_ref() {
5008 let buffer = self.buffer.read(cx).read(cx);
5009 completion.0.position.is_valid(&buffer)
5010 } else {
5011 false
5012 }
5013 }
5014
5015 fn take_active_inline_completion(
5016 &mut self,
5017 cx: &mut ViewContext<Self>,
5018 ) -> Option<(Inlay, Option<Range<Anchor>>)> {
5019 let completion = self.active_inline_completion.take()?;
5020 self.display_map.update(cx, |map, cx| {
5021 map.splice_inlays(vec![completion.0.id], Default::default(), cx);
5022 });
5023 let buffer = self.buffer.read(cx).read(cx);
5024
5025 if completion.0.position.is_valid(&buffer) {
5026 Some(completion)
5027 } else {
5028 None
5029 }
5030 }
5031
5032 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5033 let selection = self.selections.newest_anchor();
5034 let cursor = selection.head();
5035
5036 let excerpt_id = cursor.excerpt_id;
5037
5038 if self.context_menu.read().is_none()
5039 && self.completion_tasks.is_empty()
5040 && selection.start == selection.end
5041 {
5042 if let Some(provider) = self.inline_completion_provider() {
5043 if let Some((buffer, cursor_buffer_position)) =
5044 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5045 {
5046 if let Some((text, text_anchor_range)) =
5047 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5048 {
5049 let text = Rope::from(text);
5050 let mut to_remove = Vec::new();
5051 if let Some(completion) = self.active_inline_completion.take() {
5052 to_remove.push(completion.0.id);
5053 }
5054
5055 let completion_inlay =
5056 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
5057
5058 let multibuffer_anchor_range = text_anchor_range.and_then(|range| {
5059 let snapshot = self.buffer.read(cx).snapshot(cx);
5060 Some(
5061 snapshot.anchor_in_excerpt(excerpt_id, range.start)?
5062 ..snapshot.anchor_in_excerpt(excerpt_id, range.end)?,
5063 )
5064 });
5065 self.active_inline_completion =
5066 Some((completion_inlay.clone(), multibuffer_anchor_range));
5067
5068 self.display_map.update(cx, move |map, cx| {
5069 map.splice_inlays(to_remove, vec![completion_inlay], cx)
5070 });
5071 cx.notify();
5072 return;
5073 }
5074 }
5075 }
5076 }
5077
5078 self.discard_inline_completion(false, cx);
5079 }
5080
5081 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5082 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5083 }
5084
5085 fn render_code_actions_indicator(
5086 &self,
5087 _style: &EditorStyle,
5088 row: DisplayRow,
5089 is_active: bool,
5090 cx: &mut ViewContext<Self>,
5091 ) -> Option<IconButton> {
5092 if self.available_code_actions.is_some() {
5093 Some(
5094 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5095 .shape(ui::IconButtonShape::Square)
5096 .icon_size(IconSize::XSmall)
5097 .icon_color(Color::Muted)
5098 .selected(is_active)
5099 .on_click(cx.listener(move |editor, _e, cx| {
5100 editor.focus(cx);
5101 editor.toggle_code_actions(
5102 &ToggleCodeActions {
5103 deployed_from_indicator: Some(row),
5104 },
5105 cx,
5106 );
5107 })),
5108 )
5109 } else {
5110 None
5111 }
5112 }
5113
5114 fn clear_tasks(&mut self) {
5115 self.tasks.clear()
5116 }
5117
5118 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5119 if let Some(_) = self.tasks.insert(key, value) {
5120 // This case should hopefully be rare, but just in case...
5121 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5122 }
5123 }
5124
5125 fn render_run_indicator(
5126 &self,
5127 _style: &EditorStyle,
5128 is_active: bool,
5129 row: DisplayRow,
5130 cx: &mut ViewContext<Self>,
5131 ) -> IconButton {
5132 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5133 .shape(ui::IconButtonShape::Square)
5134 .icon_size(IconSize::XSmall)
5135 .icon_color(Color::Muted)
5136 .selected(is_active)
5137 .on_click(cx.listener(move |editor, _e, cx| {
5138 editor.focus(cx);
5139 editor.toggle_code_actions(
5140 &ToggleCodeActions {
5141 deployed_from_indicator: Some(row),
5142 },
5143 cx,
5144 );
5145 }))
5146 }
5147
5148 fn close_hunk_diff_button(
5149 &self,
5150 hunk: HoveredHunk,
5151 row: DisplayRow,
5152 cx: &mut ViewContext<Self>,
5153 ) -> IconButton {
5154 IconButton::new(
5155 ("close_hunk_diff_indicator", row.0 as usize),
5156 ui::IconName::Close,
5157 )
5158 .shape(ui::IconButtonShape::Square)
5159 .icon_size(IconSize::XSmall)
5160 .icon_color(Color::Muted)
5161 .tooltip(|cx| Tooltip::for_action("Close hunk diff", &ToggleHunkDiff, cx))
5162 .on_click(cx.listener(move |editor, _e, cx| editor.toggle_hovered_hunk(&hunk, cx)))
5163 }
5164
5165 pub fn context_menu_visible(&self) -> bool {
5166 self.context_menu
5167 .read()
5168 .as_ref()
5169 .map_or(false, |menu| menu.visible())
5170 }
5171
5172 fn render_context_menu(
5173 &self,
5174 cursor_position: DisplayPoint,
5175 style: &EditorStyle,
5176 max_height: Pixels,
5177 cx: &mut ViewContext<Editor>,
5178 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5179 self.context_menu.read().as_ref().map(|menu| {
5180 menu.render(
5181 cursor_position,
5182 style,
5183 max_height,
5184 self.workspace.as_ref().map(|(w, _)| w.clone()),
5185 cx,
5186 )
5187 })
5188 }
5189
5190 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5191 cx.notify();
5192 self.completion_tasks.clear();
5193 let context_menu = self.context_menu.write().take();
5194 if context_menu.is_some() {
5195 self.update_visible_inline_completion(cx);
5196 }
5197 context_menu
5198 }
5199
5200 pub fn insert_snippet(
5201 &mut self,
5202 insertion_ranges: &[Range<usize>],
5203 snippet: Snippet,
5204 cx: &mut ViewContext<Self>,
5205 ) -> Result<()> {
5206 struct Tabstop<T> {
5207 is_end_tabstop: bool,
5208 ranges: Vec<Range<T>>,
5209 }
5210
5211 let tabstops = self.buffer.update(cx, |buffer, cx| {
5212 let snippet_text: Arc<str> = snippet.text.clone().into();
5213 buffer.edit(
5214 insertion_ranges
5215 .iter()
5216 .cloned()
5217 .map(|range| (range, snippet_text.clone())),
5218 Some(AutoindentMode::EachLine),
5219 cx,
5220 );
5221
5222 let snapshot = &*buffer.read(cx);
5223 let snippet = &snippet;
5224 snippet
5225 .tabstops
5226 .iter()
5227 .map(|tabstop| {
5228 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5229 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5230 });
5231 let mut tabstop_ranges = tabstop
5232 .iter()
5233 .flat_map(|tabstop_range| {
5234 let mut delta = 0_isize;
5235 insertion_ranges.iter().map(move |insertion_range| {
5236 let insertion_start = insertion_range.start as isize + delta;
5237 delta +=
5238 snippet.text.len() as isize - insertion_range.len() as isize;
5239
5240 let start = ((insertion_start + tabstop_range.start) as usize)
5241 .min(snapshot.len());
5242 let end = ((insertion_start + tabstop_range.end) as usize)
5243 .min(snapshot.len());
5244 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5245 })
5246 })
5247 .collect::<Vec<_>>();
5248 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5249
5250 Tabstop {
5251 is_end_tabstop,
5252 ranges: tabstop_ranges,
5253 }
5254 })
5255 .collect::<Vec<_>>()
5256 });
5257 if let Some(tabstop) = tabstops.first() {
5258 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5259 s.select_ranges(tabstop.ranges.iter().cloned());
5260 });
5261
5262 // If we're already at the last tabstop and it's at the end of the snippet,
5263 // we're done, we don't need to keep the state around.
5264 if !tabstop.is_end_tabstop {
5265 let ranges = tabstops
5266 .into_iter()
5267 .map(|tabstop| tabstop.ranges)
5268 .collect::<Vec<_>>();
5269 self.snippet_stack.push(SnippetState {
5270 active_index: 0,
5271 ranges,
5272 });
5273 }
5274
5275 // Check whether the just-entered snippet ends with an auto-closable bracket.
5276 if self.autoclose_regions.is_empty() {
5277 let snapshot = self.buffer.read(cx).snapshot(cx);
5278 for selection in &mut self.selections.all::<Point>(cx) {
5279 let selection_head = selection.head();
5280 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5281 continue;
5282 };
5283
5284 let mut bracket_pair = None;
5285 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5286 let prev_chars = snapshot
5287 .reversed_chars_at(selection_head)
5288 .collect::<String>();
5289 for (pair, enabled) in scope.brackets() {
5290 if enabled
5291 && pair.close
5292 && prev_chars.starts_with(pair.start.as_str())
5293 && next_chars.starts_with(pair.end.as_str())
5294 {
5295 bracket_pair = Some(pair.clone());
5296 break;
5297 }
5298 }
5299 if let Some(pair) = bracket_pair {
5300 let start = snapshot.anchor_after(selection_head);
5301 let end = snapshot.anchor_after(selection_head);
5302 self.autoclose_regions.push(AutocloseRegion {
5303 selection_id: selection.id,
5304 range: start..end,
5305 pair,
5306 });
5307 }
5308 }
5309 }
5310 }
5311 Ok(())
5312 }
5313
5314 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5315 self.move_to_snippet_tabstop(Bias::Right, cx)
5316 }
5317
5318 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5319 self.move_to_snippet_tabstop(Bias::Left, cx)
5320 }
5321
5322 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5323 if let Some(mut snippet) = self.snippet_stack.pop() {
5324 match bias {
5325 Bias::Left => {
5326 if snippet.active_index > 0 {
5327 snippet.active_index -= 1;
5328 } else {
5329 self.snippet_stack.push(snippet);
5330 return false;
5331 }
5332 }
5333 Bias::Right => {
5334 if snippet.active_index + 1 < snippet.ranges.len() {
5335 snippet.active_index += 1;
5336 } else {
5337 self.snippet_stack.push(snippet);
5338 return false;
5339 }
5340 }
5341 }
5342 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5344 s.select_anchor_ranges(current_ranges.iter().cloned())
5345 });
5346 // If snippet state is not at the last tabstop, push it back on the stack
5347 if snippet.active_index + 1 < snippet.ranges.len() {
5348 self.snippet_stack.push(snippet);
5349 }
5350 return true;
5351 }
5352 }
5353
5354 false
5355 }
5356
5357 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5358 self.transact(cx, |this, cx| {
5359 this.select_all(&SelectAll, cx);
5360 this.insert("", cx);
5361 });
5362 }
5363
5364 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5365 self.transact(cx, |this, cx| {
5366 this.select_autoclose_pair(cx);
5367 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5368 if !this.linked_edit_ranges.is_empty() {
5369 let selections = this.selections.all::<MultiBufferPoint>(cx);
5370 let snapshot = this.buffer.read(cx).snapshot(cx);
5371
5372 for selection in selections.iter() {
5373 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5374 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5375 if selection_start.buffer_id != selection_end.buffer_id {
5376 continue;
5377 }
5378 if let Some(ranges) =
5379 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5380 {
5381 for (buffer, entries) in ranges {
5382 linked_ranges.entry(buffer).or_default().extend(entries);
5383 }
5384 }
5385 }
5386 }
5387
5388 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5389 if !this.selections.line_mode {
5390 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5391 for selection in &mut selections {
5392 if selection.is_empty() {
5393 let old_head = selection.head();
5394 let mut new_head =
5395 movement::left(&display_map, old_head.to_display_point(&display_map))
5396 .to_point(&display_map);
5397 if let Some((buffer, line_buffer_range)) = display_map
5398 .buffer_snapshot
5399 .buffer_line_for_row(MultiBufferRow(old_head.row))
5400 {
5401 let indent_size =
5402 buffer.indent_size_for_line(line_buffer_range.start.row);
5403 let indent_len = match indent_size.kind {
5404 IndentKind::Space => {
5405 buffer.settings_at(line_buffer_range.start, cx).tab_size
5406 }
5407 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5408 };
5409 if old_head.column <= indent_size.len && old_head.column > 0 {
5410 let indent_len = indent_len.get();
5411 new_head = cmp::min(
5412 new_head,
5413 MultiBufferPoint::new(
5414 old_head.row,
5415 ((old_head.column - 1) / indent_len) * indent_len,
5416 ),
5417 );
5418 }
5419 }
5420
5421 selection.set_head(new_head, SelectionGoal::None);
5422 }
5423 }
5424 }
5425
5426 this.signature_help_state.set_backspace_pressed(true);
5427 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5428 this.insert("", cx);
5429 let empty_str: Arc<str> = Arc::from("");
5430 for (buffer, edits) in linked_ranges {
5431 let snapshot = buffer.read(cx).snapshot();
5432 use text::ToPoint as TP;
5433
5434 let edits = edits
5435 .into_iter()
5436 .map(|range| {
5437 let end_point = TP::to_point(&range.end, &snapshot);
5438 let mut start_point = TP::to_point(&range.start, &snapshot);
5439
5440 if end_point == start_point {
5441 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5442 .saturating_sub(1);
5443 start_point = TP::to_point(&offset, &snapshot);
5444 };
5445
5446 (start_point..end_point, empty_str.clone())
5447 })
5448 .sorted_by_key(|(range, _)| range.start)
5449 .collect::<Vec<_>>();
5450 buffer.update(cx, |this, cx| {
5451 this.edit(edits, None, cx);
5452 })
5453 }
5454 this.refresh_inline_completion(true, cx);
5455 linked_editing_ranges::refresh_linked_ranges(this, cx);
5456 });
5457 }
5458
5459 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5460 self.transact(cx, |this, cx| {
5461 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5462 let line_mode = s.line_mode;
5463 s.move_with(|map, selection| {
5464 if selection.is_empty() && !line_mode {
5465 let cursor = movement::right(map, selection.head());
5466 selection.end = cursor;
5467 selection.reversed = true;
5468 selection.goal = SelectionGoal::None;
5469 }
5470 })
5471 });
5472 this.insert("", cx);
5473 this.refresh_inline_completion(true, cx);
5474 });
5475 }
5476
5477 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5478 if self.move_to_prev_snippet_tabstop(cx) {
5479 return;
5480 }
5481
5482 self.outdent(&Outdent, cx);
5483 }
5484
5485 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5486 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5487 return;
5488 }
5489
5490 let mut selections = self.selections.all_adjusted(cx);
5491 let buffer = self.buffer.read(cx);
5492 let snapshot = buffer.snapshot(cx);
5493 let rows_iter = selections.iter().map(|s| s.head().row);
5494 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5495
5496 let mut edits = Vec::new();
5497 let mut prev_edited_row = 0;
5498 let mut row_delta = 0;
5499 for selection in &mut selections {
5500 if selection.start.row != prev_edited_row {
5501 row_delta = 0;
5502 }
5503 prev_edited_row = selection.end.row;
5504
5505 // If the selection is non-empty, then increase the indentation of the selected lines.
5506 if !selection.is_empty() {
5507 row_delta =
5508 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5509 continue;
5510 }
5511
5512 // If the selection is empty and the cursor is in the leading whitespace before the
5513 // suggested indentation, then auto-indent the line.
5514 let cursor = selection.head();
5515 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5516 if let Some(suggested_indent) =
5517 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5518 {
5519 if cursor.column < suggested_indent.len
5520 && cursor.column <= current_indent.len
5521 && current_indent.len <= suggested_indent.len
5522 {
5523 selection.start = Point::new(cursor.row, suggested_indent.len);
5524 selection.end = selection.start;
5525 if row_delta == 0 {
5526 edits.extend(Buffer::edit_for_indent_size_adjustment(
5527 cursor.row,
5528 current_indent,
5529 suggested_indent,
5530 ));
5531 row_delta = suggested_indent.len - current_indent.len;
5532 }
5533 continue;
5534 }
5535 }
5536
5537 // Otherwise, insert a hard or soft tab.
5538 let settings = buffer.settings_at(cursor, cx);
5539 let tab_size = if settings.hard_tabs {
5540 IndentSize::tab()
5541 } else {
5542 let tab_size = settings.tab_size.get();
5543 let char_column = snapshot
5544 .text_for_range(Point::new(cursor.row, 0)..cursor)
5545 .flat_map(str::chars)
5546 .count()
5547 + row_delta as usize;
5548 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5549 IndentSize::spaces(chars_to_next_tab_stop)
5550 };
5551 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5552 selection.end = selection.start;
5553 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5554 row_delta += tab_size.len;
5555 }
5556
5557 self.transact(cx, |this, cx| {
5558 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5559 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5560 this.refresh_inline_completion(true, cx);
5561 });
5562 }
5563
5564 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5565 if self.read_only(cx) {
5566 return;
5567 }
5568 let mut selections = self.selections.all::<Point>(cx);
5569 let mut prev_edited_row = 0;
5570 let mut row_delta = 0;
5571 let mut edits = Vec::new();
5572 let buffer = self.buffer.read(cx);
5573 let snapshot = buffer.snapshot(cx);
5574 for selection in &mut selections {
5575 if selection.start.row != prev_edited_row {
5576 row_delta = 0;
5577 }
5578 prev_edited_row = selection.end.row;
5579
5580 row_delta =
5581 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5582 }
5583
5584 self.transact(cx, |this, cx| {
5585 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5586 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5587 });
5588 }
5589
5590 fn indent_selection(
5591 buffer: &MultiBuffer,
5592 snapshot: &MultiBufferSnapshot,
5593 selection: &mut Selection<Point>,
5594 edits: &mut Vec<(Range<Point>, String)>,
5595 delta_for_start_row: u32,
5596 cx: &AppContext,
5597 ) -> u32 {
5598 let settings = buffer.settings_at(selection.start, cx);
5599 let tab_size = settings.tab_size.get();
5600 let indent_kind = if settings.hard_tabs {
5601 IndentKind::Tab
5602 } else {
5603 IndentKind::Space
5604 };
5605 let mut start_row = selection.start.row;
5606 let mut end_row = selection.end.row + 1;
5607
5608 // If a selection ends at the beginning of a line, don't indent
5609 // that last line.
5610 if selection.end.column == 0 && selection.end.row > selection.start.row {
5611 end_row -= 1;
5612 }
5613
5614 // Avoid re-indenting a row that has already been indented by a
5615 // previous selection, but still update this selection's column
5616 // to reflect that indentation.
5617 if delta_for_start_row > 0 {
5618 start_row += 1;
5619 selection.start.column += delta_for_start_row;
5620 if selection.end.row == selection.start.row {
5621 selection.end.column += delta_for_start_row;
5622 }
5623 }
5624
5625 let mut delta_for_end_row = 0;
5626 let has_multiple_rows = start_row + 1 != end_row;
5627 for row in start_row..end_row {
5628 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5629 let indent_delta = match (current_indent.kind, indent_kind) {
5630 (IndentKind::Space, IndentKind::Space) => {
5631 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5632 IndentSize::spaces(columns_to_next_tab_stop)
5633 }
5634 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5635 (_, IndentKind::Tab) => IndentSize::tab(),
5636 };
5637
5638 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5639 0
5640 } else {
5641 selection.start.column
5642 };
5643 let row_start = Point::new(row, start);
5644 edits.push((
5645 row_start..row_start,
5646 indent_delta.chars().collect::<String>(),
5647 ));
5648
5649 // Update this selection's endpoints to reflect the indentation.
5650 if row == selection.start.row {
5651 selection.start.column += indent_delta.len;
5652 }
5653 if row == selection.end.row {
5654 selection.end.column += indent_delta.len;
5655 delta_for_end_row = indent_delta.len;
5656 }
5657 }
5658
5659 if selection.start.row == selection.end.row {
5660 delta_for_start_row + delta_for_end_row
5661 } else {
5662 delta_for_end_row
5663 }
5664 }
5665
5666 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5667 if self.read_only(cx) {
5668 return;
5669 }
5670 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5671 let selections = self.selections.all::<Point>(cx);
5672 let mut deletion_ranges = Vec::new();
5673 let mut last_outdent = None;
5674 {
5675 let buffer = self.buffer.read(cx);
5676 let snapshot = buffer.snapshot(cx);
5677 for selection in &selections {
5678 let settings = buffer.settings_at(selection.start, cx);
5679 let tab_size = settings.tab_size.get();
5680 let mut rows = selection.spanned_rows(false, &display_map);
5681
5682 // Avoid re-outdenting a row that has already been outdented by a
5683 // previous selection.
5684 if let Some(last_row) = last_outdent {
5685 if last_row == rows.start {
5686 rows.start = rows.start.next_row();
5687 }
5688 }
5689 let has_multiple_rows = rows.len() > 1;
5690 for row in rows.iter_rows() {
5691 let indent_size = snapshot.indent_size_for_line(row);
5692 if indent_size.len > 0 {
5693 let deletion_len = match indent_size.kind {
5694 IndentKind::Space => {
5695 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5696 if columns_to_prev_tab_stop == 0 {
5697 tab_size
5698 } else {
5699 columns_to_prev_tab_stop
5700 }
5701 }
5702 IndentKind::Tab => 1,
5703 };
5704 let start = if has_multiple_rows
5705 || deletion_len > selection.start.column
5706 || indent_size.len < selection.start.column
5707 {
5708 0
5709 } else {
5710 selection.start.column - deletion_len
5711 };
5712 deletion_ranges.push(
5713 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5714 );
5715 last_outdent = Some(row);
5716 }
5717 }
5718 }
5719 }
5720
5721 self.transact(cx, |this, cx| {
5722 this.buffer.update(cx, |buffer, cx| {
5723 let empty_str: Arc<str> = Arc::default();
5724 buffer.edit(
5725 deletion_ranges
5726 .into_iter()
5727 .map(|range| (range, empty_str.clone())),
5728 None,
5729 cx,
5730 );
5731 });
5732 let selections = this.selections.all::<usize>(cx);
5733 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5734 });
5735 }
5736
5737 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5738 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5739 let selections = self.selections.all::<Point>(cx);
5740
5741 let mut new_cursors = Vec::new();
5742 let mut edit_ranges = Vec::new();
5743 let mut selections = selections.iter().peekable();
5744 while let Some(selection) = selections.next() {
5745 let mut rows = selection.spanned_rows(false, &display_map);
5746 let goal_display_column = selection.head().to_display_point(&display_map).column();
5747
5748 // Accumulate contiguous regions of rows that we want to delete.
5749 while let Some(next_selection) = selections.peek() {
5750 let next_rows = next_selection.spanned_rows(false, &display_map);
5751 if next_rows.start <= rows.end {
5752 rows.end = next_rows.end;
5753 selections.next().unwrap();
5754 } else {
5755 break;
5756 }
5757 }
5758
5759 let buffer = &display_map.buffer_snapshot;
5760 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5761 let edit_end;
5762 let cursor_buffer_row;
5763 if buffer.max_point().row >= rows.end.0 {
5764 // If there's a line after the range, delete the \n from the end of the row range
5765 // and position the cursor on the next line.
5766 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5767 cursor_buffer_row = rows.end;
5768 } else {
5769 // If there isn't a line after the range, delete the \n from the line before the
5770 // start of the row range and position the cursor there.
5771 edit_start = edit_start.saturating_sub(1);
5772 edit_end = buffer.len();
5773 cursor_buffer_row = rows.start.previous_row();
5774 }
5775
5776 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5777 *cursor.column_mut() =
5778 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5779
5780 new_cursors.push((
5781 selection.id,
5782 buffer.anchor_after(cursor.to_point(&display_map)),
5783 ));
5784 edit_ranges.push(edit_start..edit_end);
5785 }
5786
5787 self.transact(cx, |this, cx| {
5788 let buffer = this.buffer.update(cx, |buffer, cx| {
5789 let empty_str: Arc<str> = Arc::default();
5790 buffer.edit(
5791 edit_ranges
5792 .into_iter()
5793 .map(|range| (range, empty_str.clone())),
5794 None,
5795 cx,
5796 );
5797 buffer.snapshot(cx)
5798 });
5799 let new_selections = new_cursors
5800 .into_iter()
5801 .map(|(id, cursor)| {
5802 let cursor = cursor.to_point(&buffer);
5803 Selection {
5804 id,
5805 start: cursor,
5806 end: cursor,
5807 reversed: false,
5808 goal: SelectionGoal::None,
5809 }
5810 })
5811 .collect();
5812
5813 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5814 s.select(new_selections);
5815 });
5816 });
5817 }
5818
5819 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5820 if self.read_only(cx) {
5821 return;
5822 }
5823 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5824 for selection in self.selections.all::<Point>(cx) {
5825 let start = MultiBufferRow(selection.start.row);
5826 let end = if selection.start.row == selection.end.row {
5827 MultiBufferRow(selection.start.row + 1)
5828 } else {
5829 MultiBufferRow(selection.end.row)
5830 };
5831
5832 if let Some(last_row_range) = row_ranges.last_mut() {
5833 if start <= last_row_range.end {
5834 last_row_range.end = end;
5835 continue;
5836 }
5837 }
5838 row_ranges.push(start..end);
5839 }
5840
5841 let snapshot = self.buffer.read(cx).snapshot(cx);
5842 let mut cursor_positions = Vec::new();
5843 for row_range in &row_ranges {
5844 let anchor = snapshot.anchor_before(Point::new(
5845 row_range.end.previous_row().0,
5846 snapshot.line_len(row_range.end.previous_row()),
5847 ));
5848 cursor_positions.push(anchor..anchor);
5849 }
5850
5851 self.transact(cx, |this, cx| {
5852 for row_range in row_ranges.into_iter().rev() {
5853 for row in row_range.iter_rows().rev() {
5854 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5855 let next_line_row = row.next_row();
5856 let indent = snapshot.indent_size_for_line(next_line_row);
5857 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5858
5859 let replace = if snapshot.line_len(next_line_row) > indent.len {
5860 " "
5861 } else {
5862 ""
5863 };
5864
5865 this.buffer.update(cx, |buffer, cx| {
5866 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5867 });
5868 }
5869 }
5870
5871 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5872 s.select_anchor_ranges(cursor_positions)
5873 });
5874 });
5875 }
5876
5877 pub fn sort_lines_case_sensitive(
5878 &mut self,
5879 _: &SortLinesCaseSensitive,
5880 cx: &mut ViewContext<Self>,
5881 ) {
5882 self.manipulate_lines(cx, |lines| lines.sort())
5883 }
5884
5885 pub fn sort_lines_case_insensitive(
5886 &mut self,
5887 _: &SortLinesCaseInsensitive,
5888 cx: &mut ViewContext<Self>,
5889 ) {
5890 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5891 }
5892
5893 pub fn unique_lines_case_insensitive(
5894 &mut self,
5895 _: &UniqueLinesCaseInsensitive,
5896 cx: &mut ViewContext<Self>,
5897 ) {
5898 self.manipulate_lines(cx, |lines| {
5899 let mut seen = HashSet::default();
5900 lines.retain(|line| seen.insert(line.to_lowercase()));
5901 })
5902 }
5903
5904 pub fn unique_lines_case_sensitive(
5905 &mut self,
5906 _: &UniqueLinesCaseSensitive,
5907 cx: &mut ViewContext<Self>,
5908 ) {
5909 self.manipulate_lines(cx, |lines| {
5910 let mut seen = HashSet::default();
5911 lines.retain(|line| seen.insert(*line));
5912 })
5913 }
5914
5915 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5916 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5917 if !revert_changes.is_empty() {
5918 self.transact(cx, |editor, cx| {
5919 editor.revert(revert_changes, cx);
5920 });
5921 }
5922 }
5923
5924 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5925 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5926 let project_path = buffer.read(cx).project_path(cx)?;
5927 let project = self.project.as_ref()?.read(cx);
5928 let entry = project.entry_for_path(&project_path, cx)?;
5929 let abs_path = project.absolute_path(&project_path, cx)?;
5930 let parent = if entry.is_symlink {
5931 abs_path.canonicalize().ok()?
5932 } else {
5933 abs_path
5934 }
5935 .parent()?
5936 .to_path_buf();
5937 Some(parent)
5938 }) {
5939 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5940 }
5941 }
5942
5943 fn gather_revert_changes(
5944 &mut self,
5945 selections: &[Selection<Anchor>],
5946 cx: &mut ViewContext<'_, Editor>,
5947 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5948 let mut revert_changes = HashMap::default();
5949 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
5950 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5951 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
5952 }
5953 revert_changes
5954 }
5955
5956 pub fn prepare_revert_change(
5957 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5958 multi_buffer: &Model<MultiBuffer>,
5959 hunk: &DiffHunk<MultiBufferRow>,
5960 cx: &AppContext,
5961 ) -> Option<()> {
5962 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
5963 let buffer = buffer.read(cx);
5964 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5965 let buffer_snapshot = buffer.snapshot();
5966 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5967 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5968 probe
5969 .0
5970 .start
5971 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5972 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5973 }) {
5974 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5975 Some(())
5976 } else {
5977 None
5978 }
5979 }
5980
5981 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5982 self.manipulate_lines(cx, |lines| lines.reverse())
5983 }
5984
5985 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5986 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5987 }
5988
5989 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5990 where
5991 Fn: FnMut(&mut Vec<&str>),
5992 {
5993 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5994 let buffer = self.buffer.read(cx).snapshot(cx);
5995
5996 let mut edits = Vec::new();
5997
5998 let selections = self.selections.all::<Point>(cx);
5999 let mut selections = selections.iter().peekable();
6000 let mut contiguous_row_selections = Vec::new();
6001 let mut new_selections = Vec::new();
6002 let mut added_lines = 0;
6003 let mut removed_lines = 0;
6004
6005 while let Some(selection) = selections.next() {
6006 let (start_row, end_row) = consume_contiguous_rows(
6007 &mut contiguous_row_selections,
6008 selection,
6009 &display_map,
6010 &mut selections,
6011 );
6012
6013 let start_point = Point::new(start_row.0, 0);
6014 let end_point = Point::new(
6015 end_row.previous_row().0,
6016 buffer.line_len(end_row.previous_row()),
6017 );
6018 let text = buffer
6019 .text_for_range(start_point..end_point)
6020 .collect::<String>();
6021
6022 let mut lines = text.split('\n').collect_vec();
6023
6024 let lines_before = lines.len();
6025 callback(&mut lines);
6026 let lines_after = lines.len();
6027
6028 edits.push((start_point..end_point, lines.join("\n")));
6029
6030 // Selections must change based on added and removed line count
6031 let start_row =
6032 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6033 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6034 new_selections.push(Selection {
6035 id: selection.id,
6036 start: start_row,
6037 end: end_row,
6038 goal: SelectionGoal::None,
6039 reversed: selection.reversed,
6040 });
6041
6042 if lines_after > lines_before {
6043 added_lines += lines_after - lines_before;
6044 } else if lines_before > lines_after {
6045 removed_lines += lines_before - lines_after;
6046 }
6047 }
6048
6049 self.transact(cx, |this, cx| {
6050 let buffer = this.buffer.update(cx, |buffer, cx| {
6051 buffer.edit(edits, None, cx);
6052 buffer.snapshot(cx)
6053 });
6054
6055 // Recalculate offsets on newly edited buffer
6056 let new_selections = new_selections
6057 .iter()
6058 .map(|s| {
6059 let start_point = Point::new(s.start.0, 0);
6060 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6061 Selection {
6062 id: s.id,
6063 start: buffer.point_to_offset(start_point),
6064 end: buffer.point_to_offset(end_point),
6065 goal: s.goal,
6066 reversed: s.reversed,
6067 }
6068 })
6069 .collect();
6070
6071 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6072 s.select(new_selections);
6073 });
6074
6075 this.request_autoscroll(Autoscroll::fit(), cx);
6076 });
6077 }
6078
6079 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6080 self.manipulate_text(cx, |text| text.to_uppercase())
6081 }
6082
6083 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6084 self.manipulate_text(cx, |text| text.to_lowercase())
6085 }
6086
6087 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6088 self.manipulate_text(cx, |text| {
6089 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6090 // https://github.com/rutrum/convert-case/issues/16
6091 text.split('\n')
6092 .map(|line| line.to_case(Case::Title))
6093 .join("\n")
6094 })
6095 }
6096
6097 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6098 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6099 }
6100
6101 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6102 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6103 }
6104
6105 pub fn convert_to_upper_camel_case(
6106 &mut self,
6107 _: &ConvertToUpperCamelCase,
6108 cx: &mut ViewContext<Self>,
6109 ) {
6110 self.manipulate_text(cx, |text| {
6111 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6112 // https://github.com/rutrum/convert-case/issues/16
6113 text.split('\n')
6114 .map(|line| line.to_case(Case::UpperCamel))
6115 .join("\n")
6116 })
6117 }
6118
6119 pub fn convert_to_lower_camel_case(
6120 &mut self,
6121 _: &ConvertToLowerCamelCase,
6122 cx: &mut ViewContext<Self>,
6123 ) {
6124 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6125 }
6126
6127 pub fn convert_to_opposite_case(
6128 &mut self,
6129 _: &ConvertToOppositeCase,
6130 cx: &mut ViewContext<Self>,
6131 ) {
6132 self.manipulate_text(cx, |text| {
6133 text.chars()
6134 .fold(String::with_capacity(text.len()), |mut t, c| {
6135 if c.is_uppercase() {
6136 t.extend(c.to_lowercase());
6137 } else {
6138 t.extend(c.to_uppercase());
6139 }
6140 t
6141 })
6142 })
6143 }
6144
6145 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6146 where
6147 Fn: FnMut(&str) -> String,
6148 {
6149 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6150 let buffer = self.buffer.read(cx).snapshot(cx);
6151
6152 let mut new_selections = Vec::new();
6153 let mut edits = Vec::new();
6154 let mut selection_adjustment = 0i32;
6155
6156 for selection in self.selections.all::<usize>(cx) {
6157 let selection_is_empty = selection.is_empty();
6158
6159 let (start, end) = if selection_is_empty {
6160 let word_range = movement::surrounding_word(
6161 &display_map,
6162 selection.start.to_display_point(&display_map),
6163 );
6164 let start = word_range.start.to_offset(&display_map, Bias::Left);
6165 let end = word_range.end.to_offset(&display_map, Bias::Left);
6166 (start, end)
6167 } else {
6168 (selection.start, selection.end)
6169 };
6170
6171 let text = buffer.text_for_range(start..end).collect::<String>();
6172 let old_length = text.len() as i32;
6173 let text = callback(&text);
6174
6175 new_selections.push(Selection {
6176 start: (start as i32 - selection_adjustment) as usize,
6177 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6178 goal: SelectionGoal::None,
6179 ..selection
6180 });
6181
6182 selection_adjustment += old_length - text.len() as i32;
6183
6184 edits.push((start..end, text));
6185 }
6186
6187 self.transact(cx, |this, cx| {
6188 this.buffer.update(cx, |buffer, cx| {
6189 buffer.edit(edits, None, cx);
6190 });
6191
6192 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6193 s.select(new_selections);
6194 });
6195
6196 this.request_autoscroll(Autoscroll::fit(), cx);
6197 });
6198 }
6199
6200 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6201 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6202 let buffer = &display_map.buffer_snapshot;
6203 let selections = self.selections.all::<Point>(cx);
6204
6205 let mut edits = Vec::new();
6206 let mut selections_iter = selections.iter().peekable();
6207 while let Some(selection) = selections_iter.next() {
6208 // Avoid duplicating the same lines twice.
6209 let mut rows = selection.spanned_rows(false, &display_map);
6210
6211 while let Some(next_selection) = selections_iter.peek() {
6212 let next_rows = next_selection.spanned_rows(false, &display_map);
6213 if next_rows.start < rows.end {
6214 rows.end = next_rows.end;
6215 selections_iter.next().unwrap();
6216 } else {
6217 break;
6218 }
6219 }
6220
6221 // Copy the text from the selected row region and splice it either at the start
6222 // or end of the region.
6223 let start = Point::new(rows.start.0, 0);
6224 let end = Point::new(
6225 rows.end.previous_row().0,
6226 buffer.line_len(rows.end.previous_row()),
6227 );
6228 let text = buffer
6229 .text_for_range(start..end)
6230 .chain(Some("\n"))
6231 .collect::<String>();
6232 let insert_location = if upwards {
6233 Point::new(rows.end.0, 0)
6234 } else {
6235 start
6236 };
6237 edits.push((insert_location..insert_location, text));
6238 }
6239
6240 self.transact(cx, |this, cx| {
6241 this.buffer.update(cx, |buffer, cx| {
6242 buffer.edit(edits, None, cx);
6243 });
6244
6245 this.request_autoscroll(Autoscroll::fit(), cx);
6246 });
6247 }
6248
6249 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6250 self.duplicate_line(true, cx);
6251 }
6252
6253 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6254 self.duplicate_line(false, cx);
6255 }
6256
6257 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6258 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6259 let buffer = self.buffer.read(cx).snapshot(cx);
6260
6261 let mut edits = Vec::new();
6262 let mut unfold_ranges = Vec::new();
6263 let mut refold_ranges = Vec::new();
6264
6265 let selections = self.selections.all::<Point>(cx);
6266 let mut selections = selections.iter().peekable();
6267 let mut contiguous_row_selections = Vec::new();
6268 let mut new_selections = Vec::new();
6269
6270 while let Some(selection) = selections.next() {
6271 // Find all the selections that span a contiguous row range
6272 let (start_row, end_row) = consume_contiguous_rows(
6273 &mut contiguous_row_selections,
6274 selection,
6275 &display_map,
6276 &mut selections,
6277 );
6278
6279 // Move the text spanned by the row range to be before the line preceding the row range
6280 if start_row.0 > 0 {
6281 let range_to_move = Point::new(
6282 start_row.previous_row().0,
6283 buffer.line_len(start_row.previous_row()),
6284 )
6285 ..Point::new(
6286 end_row.previous_row().0,
6287 buffer.line_len(end_row.previous_row()),
6288 );
6289 let insertion_point = display_map
6290 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6291 .0;
6292
6293 // Don't move lines across excerpts
6294 if buffer
6295 .excerpt_boundaries_in_range((
6296 Bound::Excluded(insertion_point),
6297 Bound::Included(range_to_move.end),
6298 ))
6299 .next()
6300 .is_none()
6301 {
6302 let text = buffer
6303 .text_for_range(range_to_move.clone())
6304 .flat_map(|s| s.chars())
6305 .skip(1)
6306 .chain(['\n'])
6307 .collect::<String>();
6308
6309 edits.push((
6310 buffer.anchor_after(range_to_move.start)
6311 ..buffer.anchor_before(range_to_move.end),
6312 String::new(),
6313 ));
6314 let insertion_anchor = buffer.anchor_after(insertion_point);
6315 edits.push((insertion_anchor..insertion_anchor, text));
6316
6317 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6318
6319 // Move selections up
6320 new_selections.extend(contiguous_row_selections.drain(..).map(
6321 |mut selection| {
6322 selection.start.row -= row_delta;
6323 selection.end.row -= row_delta;
6324 selection
6325 },
6326 ));
6327
6328 // Move folds up
6329 unfold_ranges.push(range_to_move.clone());
6330 for fold in display_map.folds_in_range(
6331 buffer.anchor_before(range_to_move.start)
6332 ..buffer.anchor_after(range_to_move.end),
6333 ) {
6334 let mut start = fold.range.start.to_point(&buffer);
6335 let mut end = fold.range.end.to_point(&buffer);
6336 start.row -= row_delta;
6337 end.row -= row_delta;
6338 refold_ranges.push((start..end, fold.placeholder.clone()));
6339 }
6340 }
6341 }
6342
6343 // If we didn't move line(s), preserve the existing selections
6344 new_selections.append(&mut contiguous_row_selections);
6345 }
6346
6347 self.transact(cx, |this, cx| {
6348 this.unfold_ranges(unfold_ranges, true, true, cx);
6349 this.buffer.update(cx, |buffer, cx| {
6350 for (range, text) in edits {
6351 buffer.edit([(range, text)], None, cx);
6352 }
6353 });
6354 this.fold_ranges(refold_ranges, true, cx);
6355 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6356 s.select(new_selections);
6357 })
6358 });
6359 }
6360
6361 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6362 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6363 let buffer = self.buffer.read(cx).snapshot(cx);
6364
6365 let mut edits = Vec::new();
6366 let mut unfold_ranges = Vec::new();
6367 let mut refold_ranges = Vec::new();
6368
6369 let selections = self.selections.all::<Point>(cx);
6370 let mut selections = selections.iter().peekable();
6371 let mut contiguous_row_selections = Vec::new();
6372 let mut new_selections = Vec::new();
6373
6374 while let Some(selection) = selections.next() {
6375 // Find all the selections that span a contiguous row range
6376 let (start_row, end_row) = consume_contiguous_rows(
6377 &mut contiguous_row_selections,
6378 selection,
6379 &display_map,
6380 &mut selections,
6381 );
6382
6383 // Move the text spanned by the row range to be after the last line of the row range
6384 if end_row.0 <= buffer.max_point().row {
6385 let range_to_move =
6386 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6387 let insertion_point = display_map
6388 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6389 .0;
6390
6391 // Don't move lines across excerpt boundaries
6392 if buffer
6393 .excerpt_boundaries_in_range((
6394 Bound::Excluded(range_to_move.start),
6395 Bound::Included(insertion_point),
6396 ))
6397 .next()
6398 .is_none()
6399 {
6400 let mut text = String::from("\n");
6401 text.extend(buffer.text_for_range(range_to_move.clone()));
6402 text.pop(); // Drop trailing newline
6403 edits.push((
6404 buffer.anchor_after(range_to_move.start)
6405 ..buffer.anchor_before(range_to_move.end),
6406 String::new(),
6407 ));
6408 let insertion_anchor = buffer.anchor_after(insertion_point);
6409 edits.push((insertion_anchor..insertion_anchor, text));
6410
6411 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6412
6413 // Move selections down
6414 new_selections.extend(contiguous_row_selections.drain(..).map(
6415 |mut selection| {
6416 selection.start.row += row_delta;
6417 selection.end.row += row_delta;
6418 selection
6419 },
6420 ));
6421
6422 // Move folds down
6423 unfold_ranges.push(range_to_move.clone());
6424 for fold in display_map.folds_in_range(
6425 buffer.anchor_before(range_to_move.start)
6426 ..buffer.anchor_after(range_to_move.end),
6427 ) {
6428 let mut start = fold.range.start.to_point(&buffer);
6429 let mut end = fold.range.end.to_point(&buffer);
6430 start.row += row_delta;
6431 end.row += row_delta;
6432 refold_ranges.push((start..end, fold.placeholder.clone()));
6433 }
6434 }
6435 }
6436
6437 // If we didn't move line(s), preserve the existing selections
6438 new_selections.append(&mut contiguous_row_selections);
6439 }
6440
6441 self.transact(cx, |this, cx| {
6442 this.unfold_ranges(unfold_ranges, true, true, cx);
6443 this.buffer.update(cx, |buffer, cx| {
6444 for (range, text) in edits {
6445 buffer.edit([(range, text)], None, cx);
6446 }
6447 });
6448 this.fold_ranges(refold_ranges, true, cx);
6449 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6450 });
6451 }
6452
6453 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6454 let text_layout_details = &self.text_layout_details(cx);
6455 self.transact(cx, |this, cx| {
6456 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6457 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6458 let line_mode = s.line_mode;
6459 s.move_with(|display_map, selection| {
6460 if !selection.is_empty() || line_mode {
6461 return;
6462 }
6463
6464 let mut head = selection.head();
6465 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6466 if head.column() == display_map.line_len(head.row()) {
6467 transpose_offset = display_map
6468 .buffer_snapshot
6469 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6470 }
6471
6472 if transpose_offset == 0 {
6473 return;
6474 }
6475
6476 *head.column_mut() += 1;
6477 head = display_map.clip_point(head, Bias::Right);
6478 let goal = SelectionGoal::HorizontalPosition(
6479 display_map
6480 .x_for_display_point(head, &text_layout_details)
6481 .into(),
6482 );
6483 selection.collapse_to(head, goal);
6484
6485 let transpose_start = display_map
6486 .buffer_snapshot
6487 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6488 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6489 let transpose_end = display_map
6490 .buffer_snapshot
6491 .clip_offset(transpose_offset + 1, Bias::Right);
6492 if let Some(ch) =
6493 display_map.buffer_snapshot.chars_at(transpose_start).next()
6494 {
6495 edits.push((transpose_start..transpose_offset, String::new()));
6496 edits.push((transpose_end..transpose_end, ch.to_string()));
6497 }
6498 }
6499 });
6500 edits
6501 });
6502 this.buffer
6503 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6504 let selections = this.selections.all::<usize>(cx);
6505 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6506 s.select(selections);
6507 });
6508 });
6509 }
6510
6511 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6512 let mut text = String::new();
6513 let buffer = self.buffer.read(cx).snapshot(cx);
6514 let mut selections = self.selections.all::<Point>(cx);
6515 let mut clipboard_selections = Vec::with_capacity(selections.len());
6516 {
6517 let max_point = buffer.max_point();
6518 let mut is_first = true;
6519 for selection in &mut selections {
6520 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6521 if is_entire_line {
6522 selection.start = Point::new(selection.start.row, 0);
6523 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6524 selection.goal = SelectionGoal::None;
6525 }
6526 if is_first {
6527 is_first = false;
6528 } else {
6529 text += "\n";
6530 }
6531 let mut len = 0;
6532 for chunk in buffer.text_for_range(selection.start..selection.end) {
6533 text.push_str(chunk);
6534 len += chunk.len();
6535 }
6536 clipboard_selections.push(ClipboardSelection {
6537 len,
6538 is_entire_line,
6539 first_line_indent: buffer
6540 .indent_size_for_line(MultiBufferRow(selection.start.row))
6541 .len,
6542 });
6543 }
6544 }
6545
6546 self.transact(cx, |this, cx| {
6547 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6548 s.select(selections);
6549 });
6550 this.insert("", cx);
6551 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6552 });
6553 }
6554
6555 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6556 let selections = self.selections.all::<Point>(cx);
6557 let buffer = self.buffer.read(cx).read(cx);
6558 let mut text = String::new();
6559
6560 let mut clipboard_selections = Vec::with_capacity(selections.len());
6561 {
6562 let max_point = buffer.max_point();
6563 let mut is_first = true;
6564 for selection in selections.iter() {
6565 let mut start = selection.start;
6566 let mut end = selection.end;
6567 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6568 if is_entire_line {
6569 start = Point::new(start.row, 0);
6570 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6571 }
6572 if is_first {
6573 is_first = false;
6574 } else {
6575 text += "\n";
6576 }
6577 let mut len = 0;
6578 for chunk in buffer.text_for_range(start..end) {
6579 text.push_str(chunk);
6580 len += chunk.len();
6581 }
6582 clipboard_selections.push(ClipboardSelection {
6583 len,
6584 is_entire_line,
6585 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6586 });
6587 }
6588 }
6589
6590 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6591 }
6592
6593 pub fn do_paste(
6594 &mut self,
6595 text: &String,
6596 clipboard_selections: Option<Vec<ClipboardSelection>>,
6597 handle_entire_lines: bool,
6598 cx: &mut ViewContext<Self>,
6599 ) {
6600 if self.read_only(cx) {
6601 return;
6602 }
6603
6604 let clipboard_text = Cow::Borrowed(text);
6605
6606 self.transact(cx, |this, cx| {
6607 if let Some(mut clipboard_selections) = clipboard_selections {
6608 let old_selections = this.selections.all::<usize>(cx);
6609 let all_selections_were_entire_line =
6610 clipboard_selections.iter().all(|s| s.is_entire_line);
6611 let first_selection_indent_column =
6612 clipboard_selections.first().map(|s| s.first_line_indent);
6613 if clipboard_selections.len() != old_selections.len() {
6614 clipboard_selections.drain(..);
6615 }
6616
6617 this.buffer.update(cx, |buffer, cx| {
6618 let snapshot = buffer.read(cx);
6619 let mut start_offset = 0;
6620 let mut edits = Vec::new();
6621 let mut original_indent_columns = Vec::new();
6622 for (ix, selection) in old_selections.iter().enumerate() {
6623 let to_insert;
6624 let entire_line;
6625 let original_indent_column;
6626 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6627 let end_offset = start_offset + clipboard_selection.len;
6628 to_insert = &clipboard_text[start_offset..end_offset];
6629 entire_line = clipboard_selection.is_entire_line;
6630 start_offset = end_offset + 1;
6631 original_indent_column = Some(clipboard_selection.first_line_indent);
6632 } else {
6633 to_insert = clipboard_text.as_str();
6634 entire_line = all_selections_were_entire_line;
6635 original_indent_column = first_selection_indent_column
6636 }
6637
6638 // If the corresponding selection was empty when this slice of the
6639 // clipboard text was written, then the entire line containing the
6640 // selection was copied. If this selection is also currently empty,
6641 // then paste the line before the current line of the buffer.
6642 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6643 let column = selection.start.to_point(&snapshot).column as usize;
6644 let line_start = selection.start - column;
6645 line_start..line_start
6646 } else {
6647 selection.range()
6648 };
6649
6650 edits.push((range, to_insert));
6651 original_indent_columns.extend(original_indent_column);
6652 }
6653 drop(snapshot);
6654
6655 buffer.edit(
6656 edits,
6657 Some(AutoindentMode::Block {
6658 original_indent_columns,
6659 }),
6660 cx,
6661 );
6662 });
6663
6664 let selections = this.selections.all::<usize>(cx);
6665 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6666 } else {
6667 this.insert(&clipboard_text, cx);
6668 }
6669 });
6670 }
6671
6672 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6673 if let Some(item) = cx.read_from_clipboard() {
6674 self.do_paste(
6675 item.text(),
6676 item.metadata::<Vec<ClipboardSelection>>(),
6677 true,
6678 cx,
6679 )
6680 };
6681 }
6682
6683 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6684 if self.read_only(cx) {
6685 return;
6686 }
6687
6688 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6689 if let Some((selections, _)) =
6690 self.selection_history.transaction(transaction_id).cloned()
6691 {
6692 self.change_selections(None, cx, |s| {
6693 s.select_anchors(selections.to_vec());
6694 });
6695 }
6696 self.request_autoscroll(Autoscroll::fit(), cx);
6697 self.unmark_text(cx);
6698 self.refresh_inline_completion(true, cx);
6699 cx.emit(EditorEvent::Edited { transaction_id });
6700 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6701 }
6702 }
6703
6704 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6705 if self.read_only(cx) {
6706 return;
6707 }
6708
6709 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6710 if let Some((_, Some(selections))) =
6711 self.selection_history.transaction(transaction_id).cloned()
6712 {
6713 self.change_selections(None, cx, |s| {
6714 s.select_anchors(selections.to_vec());
6715 });
6716 }
6717 self.request_autoscroll(Autoscroll::fit(), cx);
6718 self.unmark_text(cx);
6719 self.refresh_inline_completion(true, cx);
6720 cx.emit(EditorEvent::Edited { transaction_id });
6721 }
6722 }
6723
6724 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6725 self.buffer
6726 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6727 }
6728
6729 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6730 self.buffer
6731 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6732 }
6733
6734 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6735 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6736 let line_mode = s.line_mode;
6737 s.move_with(|map, selection| {
6738 let cursor = if selection.is_empty() && !line_mode {
6739 movement::left(map, selection.start)
6740 } else {
6741 selection.start
6742 };
6743 selection.collapse_to(cursor, SelectionGoal::None);
6744 });
6745 })
6746 }
6747
6748 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6749 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6750 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6751 })
6752 }
6753
6754 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6755 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6756 let line_mode = s.line_mode;
6757 s.move_with(|map, selection| {
6758 let cursor = if selection.is_empty() && !line_mode {
6759 movement::right(map, selection.end)
6760 } else {
6761 selection.end
6762 };
6763 selection.collapse_to(cursor, SelectionGoal::None)
6764 });
6765 })
6766 }
6767
6768 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6770 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6771 })
6772 }
6773
6774 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6775 if self.take_rename(true, cx).is_some() {
6776 return;
6777 }
6778
6779 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6780 cx.propagate();
6781 return;
6782 }
6783
6784 let text_layout_details = &self.text_layout_details(cx);
6785 let selection_count = self.selections.count();
6786 let first_selection = self.selections.first_anchor();
6787
6788 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6789 let line_mode = s.line_mode;
6790 s.move_with(|map, selection| {
6791 if !selection.is_empty() && !line_mode {
6792 selection.goal = SelectionGoal::None;
6793 }
6794 let (cursor, goal) = movement::up(
6795 map,
6796 selection.start,
6797 selection.goal,
6798 false,
6799 &text_layout_details,
6800 );
6801 selection.collapse_to(cursor, goal);
6802 });
6803 });
6804
6805 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6806 {
6807 cx.propagate();
6808 }
6809 }
6810
6811 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6812 if self.take_rename(true, cx).is_some() {
6813 return;
6814 }
6815
6816 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6817 cx.propagate();
6818 return;
6819 }
6820
6821 let text_layout_details = &self.text_layout_details(cx);
6822
6823 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6824 let line_mode = s.line_mode;
6825 s.move_with(|map, selection| {
6826 if !selection.is_empty() && !line_mode {
6827 selection.goal = SelectionGoal::None;
6828 }
6829 let (cursor, goal) = movement::up_by_rows(
6830 map,
6831 selection.start,
6832 action.lines,
6833 selection.goal,
6834 false,
6835 &text_layout_details,
6836 );
6837 selection.collapse_to(cursor, goal);
6838 });
6839 })
6840 }
6841
6842 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6843 if self.take_rename(true, cx).is_some() {
6844 return;
6845 }
6846
6847 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6848 cx.propagate();
6849 return;
6850 }
6851
6852 let text_layout_details = &self.text_layout_details(cx);
6853
6854 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6855 let line_mode = s.line_mode;
6856 s.move_with(|map, selection| {
6857 if !selection.is_empty() && !line_mode {
6858 selection.goal = SelectionGoal::None;
6859 }
6860 let (cursor, goal) = movement::down_by_rows(
6861 map,
6862 selection.start,
6863 action.lines,
6864 selection.goal,
6865 false,
6866 &text_layout_details,
6867 );
6868 selection.collapse_to(cursor, goal);
6869 });
6870 })
6871 }
6872
6873 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6874 let text_layout_details = &self.text_layout_details(cx);
6875 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6876 s.move_heads_with(|map, head, goal| {
6877 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6878 })
6879 })
6880 }
6881
6882 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6883 let text_layout_details = &self.text_layout_details(cx);
6884 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6885 s.move_heads_with(|map, head, goal| {
6886 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6887 })
6888 })
6889 }
6890
6891 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
6892 let Some(row_count) = self.visible_row_count() else {
6893 return;
6894 };
6895
6896 let text_layout_details = &self.text_layout_details(cx);
6897
6898 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6899 s.move_heads_with(|map, head, goal| {
6900 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
6901 })
6902 })
6903 }
6904
6905 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6906 if self.take_rename(true, cx).is_some() {
6907 return;
6908 }
6909
6910 if self
6911 .context_menu
6912 .write()
6913 .as_mut()
6914 .map(|menu| menu.select_first(self.project.as_ref(), cx))
6915 .unwrap_or(false)
6916 {
6917 return;
6918 }
6919
6920 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6921 cx.propagate();
6922 return;
6923 }
6924
6925 let Some(row_count) = self.visible_row_count() else {
6926 return;
6927 };
6928
6929 let autoscroll = if action.center_cursor {
6930 Autoscroll::center()
6931 } else {
6932 Autoscroll::fit()
6933 };
6934
6935 let text_layout_details = &self.text_layout_details(cx);
6936
6937 self.change_selections(Some(autoscroll), cx, |s| {
6938 let line_mode = s.line_mode;
6939 s.move_with(|map, selection| {
6940 if !selection.is_empty() && !line_mode {
6941 selection.goal = SelectionGoal::None;
6942 }
6943 let (cursor, goal) = movement::up_by_rows(
6944 map,
6945 selection.end,
6946 row_count,
6947 selection.goal,
6948 false,
6949 &text_layout_details,
6950 );
6951 selection.collapse_to(cursor, goal);
6952 });
6953 });
6954 }
6955
6956 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6957 let text_layout_details = &self.text_layout_details(cx);
6958 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6959 s.move_heads_with(|map, head, goal| {
6960 movement::up(map, head, goal, false, &text_layout_details)
6961 })
6962 })
6963 }
6964
6965 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6966 self.take_rename(true, cx);
6967
6968 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6969 cx.propagate();
6970 return;
6971 }
6972
6973 let text_layout_details = &self.text_layout_details(cx);
6974 let selection_count = self.selections.count();
6975 let first_selection = self.selections.first_anchor();
6976
6977 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6978 let line_mode = s.line_mode;
6979 s.move_with(|map, selection| {
6980 if !selection.is_empty() && !line_mode {
6981 selection.goal = SelectionGoal::None;
6982 }
6983 let (cursor, goal) = movement::down(
6984 map,
6985 selection.end,
6986 selection.goal,
6987 false,
6988 &text_layout_details,
6989 );
6990 selection.collapse_to(cursor, goal);
6991 });
6992 });
6993
6994 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6995 {
6996 cx.propagate();
6997 }
6998 }
6999
7000 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7001 let Some(row_count) = self.visible_row_count() else {
7002 return;
7003 };
7004
7005 let text_layout_details = &self.text_layout_details(cx);
7006
7007 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7008 s.move_heads_with(|map, head, goal| {
7009 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
7010 })
7011 })
7012 }
7013
7014 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7015 if self.take_rename(true, cx).is_some() {
7016 return;
7017 }
7018
7019 if self
7020 .context_menu
7021 .write()
7022 .as_mut()
7023 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7024 .unwrap_or(false)
7025 {
7026 return;
7027 }
7028
7029 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7030 cx.propagate();
7031 return;
7032 }
7033
7034 let Some(row_count) = self.visible_row_count() else {
7035 return;
7036 };
7037
7038 let autoscroll = if action.center_cursor {
7039 Autoscroll::center()
7040 } else {
7041 Autoscroll::fit()
7042 };
7043
7044 let text_layout_details = &self.text_layout_details(cx);
7045 self.change_selections(Some(autoscroll), cx, |s| {
7046 let line_mode = s.line_mode;
7047 s.move_with(|map, selection| {
7048 if !selection.is_empty() && !line_mode {
7049 selection.goal = SelectionGoal::None;
7050 }
7051 let (cursor, goal) = movement::down_by_rows(
7052 map,
7053 selection.end,
7054 row_count,
7055 selection.goal,
7056 false,
7057 &text_layout_details,
7058 );
7059 selection.collapse_to(cursor, goal);
7060 });
7061 });
7062 }
7063
7064 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7065 let text_layout_details = &self.text_layout_details(cx);
7066 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7067 s.move_heads_with(|map, head, goal| {
7068 movement::down(map, head, goal, false, &text_layout_details)
7069 })
7070 });
7071 }
7072
7073 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7074 if let Some(context_menu) = self.context_menu.write().as_mut() {
7075 context_menu.select_first(self.project.as_ref(), cx);
7076 }
7077 }
7078
7079 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7080 if let Some(context_menu) = self.context_menu.write().as_mut() {
7081 context_menu.select_prev(self.project.as_ref(), cx);
7082 }
7083 }
7084
7085 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7086 if let Some(context_menu) = self.context_menu.write().as_mut() {
7087 context_menu.select_next(self.project.as_ref(), cx);
7088 }
7089 }
7090
7091 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7092 if let Some(context_menu) = self.context_menu.write().as_mut() {
7093 context_menu.select_last(self.project.as_ref(), cx);
7094 }
7095 }
7096
7097 pub fn move_to_previous_word_start(
7098 &mut self,
7099 _: &MoveToPreviousWordStart,
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::previous_word_start(map, head),
7106 SelectionGoal::None,
7107 )
7108 });
7109 })
7110 }
7111
7112 pub fn move_to_previous_subword_start(
7113 &mut self,
7114 _: &MoveToPreviousSubwordStart,
7115 cx: &mut ViewContext<Self>,
7116 ) {
7117 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7118 s.move_cursors_with(|map, head, _| {
7119 (
7120 movement::previous_subword_start(map, head),
7121 SelectionGoal::None,
7122 )
7123 });
7124 })
7125 }
7126
7127 pub fn select_to_previous_word_start(
7128 &mut self,
7129 _: &SelectToPreviousWordStart,
7130 cx: &mut ViewContext<Self>,
7131 ) {
7132 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7133 s.move_heads_with(|map, head, _| {
7134 (
7135 movement::previous_word_start(map, head),
7136 SelectionGoal::None,
7137 )
7138 });
7139 })
7140 }
7141
7142 pub fn select_to_previous_subword_start(
7143 &mut self,
7144 _: &SelectToPreviousSubwordStart,
7145 cx: &mut ViewContext<Self>,
7146 ) {
7147 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7148 s.move_heads_with(|map, head, _| {
7149 (
7150 movement::previous_subword_start(map, head),
7151 SelectionGoal::None,
7152 )
7153 });
7154 })
7155 }
7156
7157 pub fn delete_to_previous_word_start(
7158 &mut self,
7159 _: &DeleteToPreviousWordStart,
7160 cx: &mut ViewContext<Self>,
7161 ) {
7162 self.transact(cx, |this, cx| {
7163 this.select_autoclose_pair(cx);
7164 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7165 let line_mode = s.line_mode;
7166 s.move_with(|map, selection| {
7167 if selection.is_empty() && !line_mode {
7168 let cursor = movement::previous_word_start(map, selection.head());
7169 selection.set_head(cursor, SelectionGoal::None);
7170 }
7171 });
7172 });
7173 this.insert("", cx);
7174 });
7175 }
7176
7177 pub fn delete_to_previous_subword_start(
7178 &mut self,
7179 _: &DeleteToPreviousSubwordStart,
7180 cx: &mut ViewContext<Self>,
7181 ) {
7182 self.transact(cx, |this, cx| {
7183 this.select_autoclose_pair(cx);
7184 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7185 let line_mode = s.line_mode;
7186 s.move_with(|map, selection| {
7187 if selection.is_empty() && !line_mode {
7188 let cursor = movement::previous_subword_start(map, selection.head());
7189 selection.set_head(cursor, SelectionGoal::None);
7190 }
7191 });
7192 });
7193 this.insert("", cx);
7194 });
7195 }
7196
7197 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7198 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7199 s.move_cursors_with(|map, head, _| {
7200 (movement::next_word_end(map, head), SelectionGoal::None)
7201 });
7202 })
7203 }
7204
7205 pub fn move_to_next_subword_end(
7206 &mut self,
7207 _: &MoveToNextSubwordEnd,
7208 cx: &mut ViewContext<Self>,
7209 ) {
7210 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7211 s.move_cursors_with(|map, head, _| {
7212 (movement::next_subword_end(map, head), SelectionGoal::None)
7213 });
7214 })
7215 }
7216
7217 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7218 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7219 s.move_heads_with(|map, head, _| {
7220 (movement::next_word_end(map, head), SelectionGoal::None)
7221 });
7222 })
7223 }
7224
7225 pub fn select_to_next_subword_end(
7226 &mut self,
7227 _: &SelectToNextSubwordEnd,
7228 cx: &mut ViewContext<Self>,
7229 ) {
7230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7231 s.move_heads_with(|map, head, _| {
7232 (movement::next_subword_end(map, head), SelectionGoal::None)
7233 });
7234 })
7235 }
7236
7237 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7238 self.transact(cx, |this, cx| {
7239 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7240 let line_mode = s.line_mode;
7241 s.move_with(|map, selection| {
7242 if selection.is_empty() && !line_mode {
7243 let cursor = movement::next_word_end(map, selection.head());
7244 selection.set_head(cursor, SelectionGoal::None);
7245 }
7246 });
7247 });
7248 this.insert("", cx);
7249 });
7250 }
7251
7252 pub fn delete_to_next_subword_end(
7253 &mut self,
7254 _: &DeleteToNextSubwordEnd,
7255 cx: &mut ViewContext<Self>,
7256 ) {
7257 self.transact(cx, |this, cx| {
7258 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7259 s.move_with(|map, selection| {
7260 if selection.is_empty() {
7261 let cursor = movement::next_subword_end(map, selection.head());
7262 selection.set_head(cursor, SelectionGoal::None);
7263 }
7264 });
7265 });
7266 this.insert("", cx);
7267 });
7268 }
7269
7270 pub fn move_to_beginning_of_line(
7271 &mut self,
7272 action: &MoveToBeginningOfLine,
7273 cx: &mut ViewContext<Self>,
7274 ) {
7275 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7276 s.move_cursors_with(|map, head, _| {
7277 (
7278 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7279 SelectionGoal::None,
7280 )
7281 });
7282 })
7283 }
7284
7285 pub fn select_to_beginning_of_line(
7286 &mut self,
7287 action: &SelectToBeginningOfLine,
7288 cx: &mut ViewContext<Self>,
7289 ) {
7290 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7291 s.move_heads_with(|map, head, _| {
7292 (
7293 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7294 SelectionGoal::None,
7295 )
7296 });
7297 });
7298 }
7299
7300 pub fn delete_to_beginning_of_line(
7301 &mut self,
7302 _: &DeleteToBeginningOfLine,
7303 cx: &mut ViewContext<Self>,
7304 ) {
7305 self.transact(cx, |this, cx| {
7306 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7307 s.move_with(|_, selection| {
7308 selection.reversed = true;
7309 });
7310 });
7311
7312 this.select_to_beginning_of_line(
7313 &SelectToBeginningOfLine {
7314 stop_at_soft_wraps: false,
7315 },
7316 cx,
7317 );
7318 this.backspace(&Backspace, cx);
7319 });
7320 }
7321
7322 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7323 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7324 s.move_cursors_with(|map, head, _| {
7325 (
7326 movement::line_end(map, head, action.stop_at_soft_wraps),
7327 SelectionGoal::None,
7328 )
7329 });
7330 })
7331 }
7332
7333 pub fn select_to_end_of_line(
7334 &mut self,
7335 action: &SelectToEndOfLine,
7336 cx: &mut ViewContext<Self>,
7337 ) {
7338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7339 s.move_heads_with(|map, head, _| {
7340 (
7341 movement::line_end(map, head, action.stop_at_soft_wraps),
7342 SelectionGoal::None,
7343 )
7344 });
7345 })
7346 }
7347
7348 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7349 self.transact(cx, |this, cx| {
7350 this.select_to_end_of_line(
7351 &SelectToEndOfLine {
7352 stop_at_soft_wraps: false,
7353 },
7354 cx,
7355 );
7356 this.delete(&Delete, cx);
7357 });
7358 }
7359
7360 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7361 self.transact(cx, |this, cx| {
7362 this.select_to_end_of_line(
7363 &SelectToEndOfLine {
7364 stop_at_soft_wraps: false,
7365 },
7366 cx,
7367 );
7368 this.cut(&Cut, cx);
7369 });
7370 }
7371
7372 pub fn move_to_start_of_paragraph(
7373 &mut self,
7374 _: &MoveToStartOfParagraph,
7375 cx: &mut ViewContext<Self>,
7376 ) {
7377 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7378 cx.propagate();
7379 return;
7380 }
7381
7382 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7383 s.move_with(|map, selection| {
7384 selection.collapse_to(
7385 movement::start_of_paragraph(map, selection.head(), 1),
7386 SelectionGoal::None,
7387 )
7388 });
7389 })
7390 }
7391
7392 pub fn move_to_end_of_paragraph(
7393 &mut self,
7394 _: &MoveToEndOfParagraph,
7395 cx: &mut ViewContext<Self>,
7396 ) {
7397 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7398 cx.propagate();
7399 return;
7400 }
7401
7402 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7403 s.move_with(|map, selection| {
7404 selection.collapse_to(
7405 movement::end_of_paragraph(map, selection.head(), 1),
7406 SelectionGoal::None,
7407 )
7408 });
7409 })
7410 }
7411
7412 pub fn select_to_start_of_paragraph(
7413 &mut self,
7414 _: &SelectToStartOfParagraph,
7415 cx: &mut ViewContext<Self>,
7416 ) {
7417 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7418 cx.propagate();
7419 return;
7420 }
7421
7422 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7423 s.move_heads_with(|map, head, _| {
7424 (
7425 movement::start_of_paragraph(map, head, 1),
7426 SelectionGoal::None,
7427 )
7428 });
7429 })
7430 }
7431
7432 pub fn select_to_end_of_paragraph(
7433 &mut self,
7434 _: &SelectToEndOfParagraph,
7435 cx: &mut ViewContext<Self>,
7436 ) {
7437 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7438 cx.propagate();
7439 return;
7440 }
7441
7442 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7443 s.move_heads_with(|map, head, _| {
7444 (
7445 movement::end_of_paragraph(map, head, 1),
7446 SelectionGoal::None,
7447 )
7448 });
7449 })
7450 }
7451
7452 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7453 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7454 cx.propagate();
7455 return;
7456 }
7457
7458 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7459 s.select_ranges(vec![0..0]);
7460 });
7461 }
7462
7463 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7464 let mut selection = self.selections.last::<Point>(cx);
7465 selection.set_head(Point::zero(), SelectionGoal::None);
7466
7467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7468 s.select(vec![selection]);
7469 });
7470 }
7471
7472 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7473 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7474 cx.propagate();
7475 return;
7476 }
7477
7478 let cursor = self.buffer.read(cx).read(cx).len();
7479 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7480 s.select_ranges(vec![cursor..cursor])
7481 });
7482 }
7483
7484 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7485 self.nav_history = nav_history;
7486 }
7487
7488 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7489 self.nav_history.as_ref()
7490 }
7491
7492 fn push_to_nav_history(
7493 &mut self,
7494 cursor_anchor: Anchor,
7495 new_position: Option<Point>,
7496 cx: &mut ViewContext<Self>,
7497 ) {
7498 if let Some(nav_history) = self.nav_history.as_mut() {
7499 let buffer = self.buffer.read(cx).read(cx);
7500 let cursor_position = cursor_anchor.to_point(&buffer);
7501 let scroll_state = self.scroll_manager.anchor();
7502 let scroll_top_row = scroll_state.top_row(&buffer);
7503 drop(buffer);
7504
7505 if let Some(new_position) = new_position {
7506 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7507 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7508 return;
7509 }
7510 }
7511
7512 nav_history.push(
7513 Some(NavigationData {
7514 cursor_anchor,
7515 cursor_position,
7516 scroll_anchor: scroll_state,
7517 scroll_top_row,
7518 }),
7519 cx,
7520 );
7521 }
7522 }
7523
7524 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7525 let buffer = self.buffer.read(cx).snapshot(cx);
7526 let mut selection = self.selections.first::<usize>(cx);
7527 selection.set_head(buffer.len(), SelectionGoal::None);
7528 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7529 s.select(vec![selection]);
7530 });
7531 }
7532
7533 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7534 let end = self.buffer.read(cx).read(cx).len();
7535 self.change_selections(None, cx, |s| {
7536 s.select_ranges(vec![0..end]);
7537 });
7538 }
7539
7540 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7541 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7542 let mut selections = self.selections.all::<Point>(cx);
7543 let max_point = display_map.buffer_snapshot.max_point();
7544 for selection in &mut selections {
7545 let rows = selection.spanned_rows(true, &display_map);
7546 selection.start = Point::new(rows.start.0, 0);
7547 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7548 selection.reversed = false;
7549 }
7550 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7551 s.select(selections);
7552 });
7553 }
7554
7555 pub fn split_selection_into_lines(
7556 &mut self,
7557 _: &SplitSelectionIntoLines,
7558 cx: &mut ViewContext<Self>,
7559 ) {
7560 let mut to_unfold = Vec::new();
7561 let mut new_selection_ranges = Vec::new();
7562 {
7563 let selections = self.selections.all::<Point>(cx);
7564 let buffer = self.buffer.read(cx).read(cx);
7565 for selection in selections {
7566 for row in selection.start.row..selection.end.row {
7567 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7568 new_selection_ranges.push(cursor..cursor);
7569 }
7570 new_selection_ranges.push(selection.end..selection.end);
7571 to_unfold.push(selection.start..selection.end);
7572 }
7573 }
7574 self.unfold_ranges(to_unfold, true, true, cx);
7575 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7576 s.select_ranges(new_selection_ranges);
7577 });
7578 }
7579
7580 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7581 self.add_selection(true, cx);
7582 }
7583
7584 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7585 self.add_selection(false, cx);
7586 }
7587
7588 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7589 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7590 let mut selections = self.selections.all::<Point>(cx);
7591 let text_layout_details = self.text_layout_details(cx);
7592 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7593 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7594 let range = oldest_selection.display_range(&display_map).sorted();
7595
7596 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7597 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7598 let positions = start_x.min(end_x)..start_x.max(end_x);
7599
7600 selections.clear();
7601 let mut stack = Vec::new();
7602 for row in range.start.row().0..=range.end.row().0 {
7603 if let Some(selection) = self.selections.build_columnar_selection(
7604 &display_map,
7605 DisplayRow(row),
7606 &positions,
7607 oldest_selection.reversed,
7608 &text_layout_details,
7609 ) {
7610 stack.push(selection.id);
7611 selections.push(selection);
7612 }
7613 }
7614
7615 if above {
7616 stack.reverse();
7617 }
7618
7619 AddSelectionsState { above, stack }
7620 });
7621
7622 let last_added_selection = *state.stack.last().unwrap();
7623 let mut new_selections = Vec::new();
7624 if above == state.above {
7625 let end_row = if above {
7626 DisplayRow(0)
7627 } else {
7628 display_map.max_point().row()
7629 };
7630
7631 'outer: for selection in selections {
7632 if selection.id == last_added_selection {
7633 let range = selection.display_range(&display_map).sorted();
7634 debug_assert_eq!(range.start.row(), range.end.row());
7635 let mut row = range.start.row();
7636 let positions =
7637 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7638 px(start)..px(end)
7639 } else {
7640 let start_x =
7641 display_map.x_for_display_point(range.start, &text_layout_details);
7642 let end_x =
7643 display_map.x_for_display_point(range.end, &text_layout_details);
7644 start_x.min(end_x)..start_x.max(end_x)
7645 };
7646
7647 while row != end_row {
7648 if above {
7649 row.0 -= 1;
7650 } else {
7651 row.0 += 1;
7652 }
7653
7654 if let Some(new_selection) = self.selections.build_columnar_selection(
7655 &display_map,
7656 row,
7657 &positions,
7658 selection.reversed,
7659 &text_layout_details,
7660 ) {
7661 state.stack.push(new_selection.id);
7662 if above {
7663 new_selections.push(new_selection);
7664 new_selections.push(selection);
7665 } else {
7666 new_selections.push(selection);
7667 new_selections.push(new_selection);
7668 }
7669
7670 continue 'outer;
7671 }
7672 }
7673 }
7674
7675 new_selections.push(selection);
7676 }
7677 } else {
7678 new_selections = selections;
7679 new_selections.retain(|s| s.id != last_added_selection);
7680 state.stack.pop();
7681 }
7682
7683 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7684 s.select(new_selections);
7685 });
7686 if state.stack.len() > 1 {
7687 self.add_selections_state = Some(state);
7688 }
7689 }
7690
7691 pub fn select_next_match_internal(
7692 &mut self,
7693 display_map: &DisplaySnapshot,
7694 replace_newest: bool,
7695 autoscroll: Option<Autoscroll>,
7696 cx: &mut ViewContext<Self>,
7697 ) -> Result<()> {
7698 fn select_next_match_ranges(
7699 this: &mut Editor,
7700 range: Range<usize>,
7701 replace_newest: bool,
7702 auto_scroll: Option<Autoscroll>,
7703 cx: &mut ViewContext<Editor>,
7704 ) {
7705 this.unfold_ranges([range.clone()], false, true, cx);
7706 this.change_selections(auto_scroll, cx, |s| {
7707 if replace_newest {
7708 s.delete(s.newest_anchor().id);
7709 }
7710 s.insert_range(range.clone());
7711 });
7712 }
7713
7714 let buffer = &display_map.buffer_snapshot;
7715 let mut selections = self.selections.all::<usize>(cx);
7716 if let Some(mut select_next_state) = self.select_next_state.take() {
7717 let query = &select_next_state.query;
7718 if !select_next_state.done {
7719 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7720 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7721 let mut next_selected_range = None;
7722
7723 let bytes_after_last_selection =
7724 buffer.bytes_in_range(last_selection.end..buffer.len());
7725 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7726 let query_matches = query
7727 .stream_find_iter(bytes_after_last_selection)
7728 .map(|result| (last_selection.end, result))
7729 .chain(
7730 query
7731 .stream_find_iter(bytes_before_first_selection)
7732 .map(|result| (0, result)),
7733 );
7734
7735 for (start_offset, query_match) in query_matches {
7736 let query_match = query_match.unwrap(); // can only fail due to I/O
7737 let offset_range =
7738 start_offset + query_match.start()..start_offset + query_match.end();
7739 let display_range = offset_range.start.to_display_point(&display_map)
7740 ..offset_range.end.to_display_point(&display_map);
7741
7742 if !select_next_state.wordwise
7743 || (!movement::is_inside_word(&display_map, display_range.start)
7744 && !movement::is_inside_word(&display_map, display_range.end))
7745 {
7746 // TODO: This is n^2, because we might check all the selections
7747 if !selections
7748 .iter()
7749 .any(|selection| selection.range().overlaps(&offset_range))
7750 {
7751 next_selected_range = Some(offset_range);
7752 break;
7753 }
7754 }
7755 }
7756
7757 if let Some(next_selected_range) = next_selected_range {
7758 select_next_match_ranges(
7759 self,
7760 next_selected_range,
7761 replace_newest,
7762 autoscroll,
7763 cx,
7764 );
7765 } else {
7766 select_next_state.done = true;
7767 }
7768 }
7769
7770 self.select_next_state = Some(select_next_state);
7771 } else {
7772 let mut only_carets = true;
7773 let mut same_text_selected = true;
7774 let mut selected_text = None;
7775
7776 let mut selections_iter = selections.iter().peekable();
7777 while let Some(selection) = selections_iter.next() {
7778 if selection.start != selection.end {
7779 only_carets = false;
7780 }
7781
7782 if same_text_selected {
7783 if selected_text.is_none() {
7784 selected_text =
7785 Some(buffer.text_for_range(selection.range()).collect::<String>());
7786 }
7787
7788 if let Some(next_selection) = selections_iter.peek() {
7789 if next_selection.range().len() == selection.range().len() {
7790 let next_selected_text = buffer
7791 .text_for_range(next_selection.range())
7792 .collect::<String>();
7793 if Some(next_selected_text) != selected_text {
7794 same_text_selected = false;
7795 selected_text = None;
7796 }
7797 } else {
7798 same_text_selected = false;
7799 selected_text = None;
7800 }
7801 }
7802 }
7803 }
7804
7805 if only_carets {
7806 for selection in &mut selections {
7807 let word_range = movement::surrounding_word(
7808 &display_map,
7809 selection.start.to_display_point(&display_map),
7810 );
7811 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7812 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7813 selection.goal = SelectionGoal::None;
7814 selection.reversed = false;
7815 select_next_match_ranges(
7816 self,
7817 selection.start..selection.end,
7818 replace_newest,
7819 autoscroll,
7820 cx,
7821 );
7822 }
7823
7824 if selections.len() == 1 {
7825 let selection = selections
7826 .last()
7827 .expect("ensured that there's only one selection");
7828 let query = buffer
7829 .text_for_range(selection.start..selection.end)
7830 .collect::<String>();
7831 let is_empty = query.is_empty();
7832 let select_state = SelectNextState {
7833 query: AhoCorasick::new(&[query])?,
7834 wordwise: true,
7835 done: is_empty,
7836 };
7837 self.select_next_state = Some(select_state);
7838 } else {
7839 self.select_next_state = None;
7840 }
7841 } else if let Some(selected_text) = selected_text {
7842 self.select_next_state = Some(SelectNextState {
7843 query: AhoCorasick::new(&[selected_text])?,
7844 wordwise: false,
7845 done: false,
7846 });
7847 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7848 }
7849 }
7850 Ok(())
7851 }
7852
7853 pub fn select_all_matches(
7854 &mut self,
7855 _action: &SelectAllMatches,
7856 cx: &mut ViewContext<Self>,
7857 ) -> Result<()> {
7858 self.push_to_selection_history();
7859 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7860
7861 self.select_next_match_internal(&display_map, false, None, cx)?;
7862 let Some(select_next_state) = self.select_next_state.as_mut() else {
7863 return Ok(());
7864 };
7865 if select_next_state.done {
7866 return Ok(());
7867 }
7868
7869 let mut new_selections = self.selections.all::<usize>(cx);
7870
7871 let buffer = &display_map.buffer_snapshot;
7872 let query_matches = select_next_state
7873 .query
7874 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7875
7876 for query_match in query_matches {
7877 let query_match = query_match.unwrap(); // can only fail due to I/O
7878 let offset_range = query_match.start()..query_match.end();
7879 let display_range = offset_range.start.to_display_point(&display_map)
7880 ..offset_range.end.to_display_point(&display_map);
7881
7882 if !select_next_state.wordwise
7883 || (!movement::is_inside_word(&display_map, display_range.start)
7884 && !movement::is_inside_word(&display_map, display_range.end))
7885 {
7886 self.selections.change_with(cx, |selections| {
7887 new_selections.push(Selection {
7888 id: selections.new_selection_id(),
7889 start: offset_range.start,
7890 end: offset_range.end,
7891 reversed: false,
7892 goal: SelectionGoal::None,
7893 });
7894 });
7895 }
7896 }
7897
7898 new_selections.sort_by_key(|selection| selection.start);
7899 let mut ix = 0;
7900 while ix + 1 < new_selections.len() {
7901 let current_selection = &new_selections[ix];
7902 let next_selection = &new_selections[ix + 1];
7903 if current_selection.range().overlaps(&next_selection.range()) {
7904 if current_selection.id < next_selection.id {
7905 new_selections.remove(ix + 1);
7906 } else {
7907 new_selections.remove(ix);
7908 }
7909 } else {
7910 ix += 1;
7911 }
7912 }
7913
7914 select_next_state.done = true;
7915 self.unfold_ranges(
7916 new_selections.iter().map(|selection| selection.range()),
7917 false,
7918 false,
7919 cx,
7920 );
7921 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7922 selections.select(new_selections)
7923 });
7924
7925 Ok(())
7926 }
7927
7928 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7929 self.push_to_selection_history();
7930 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7931 self.select_next_match_internal(
7932 &display_map,
7933 action.replace_newest,
7934 Some(Autoscroll::newest()),
7935 cx,
7936 )?;
7937 Ok(())
7938 }
7939
7940 pub fn select_previous(
7941 &mut self,
7942 action: &SelectPrevious,
7943 cx: &mut ViewContext<Self>,
7944 ) -> Result<()> {
7945 self.push_to_selection_history();
7946 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7947 let buffer = &display_map.buffer_snapshot;
7948 let mut selections = self.selections.all::<usize>(cx);
7949 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7950 let query = &select_prev_state.query;
7951 if !select_prev_state.done {
7952 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7953 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7954 let mut next_selected_range = None;
7955 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7956 let bytes_before_last_selection =
7957 buffer.reversed_bytes_in_range(0..last_selection.start);
7958 let bytes_after_first_selection =
7959 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7960 let query_matches = query
7961 .stream_find_iter(bytes_before_last_selection)
7962 .map(|result| (last_selection.start, result))
7963 .chain(
7964 query
7965 .stream_find_iter(bytes_after_first_selection)
7966 .map(|result| (buffer.len(), result)),
7967 );
7968 for (end_offset, query_match) in query_matches {
7969 let query_match = query_match.unwrap(); // can only fail due to I/O
7970 let offset_range =
7971 end_offset - query_match.end()..end_offset - query_match.start();
7972 let display_range = offset_range.start.to_display_point(&display_map)
7973 ..offset_range.end.to_display_point(&display_map);
7974
7975 if !select_prev_state.wordwise
7976 || (!movement::is_inside_word(&display_map, display_range.start)
7977 && !movement::is_inside_word(&display_map, display_range.end))
7978 {
7979 next_selected_range = Some(offset_range);
7980 break;
7981 }
7982 }
7983
7984 if let Some(next_selected_range) = next_selected_range {
7985 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7986 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7987 if action.replace_newest {
7988 s.delete(s.newest_anchor().id);
7989 }
7990 s.insert_range(next_selected_range);
7991 });
7992 } else {
7993 select_prev_state.done = true;
7994 }
7995 }
7996
7997 self.select_prev_state = Some(select_prev_state);
7998 } else {
7999 let mut only_carets = true;
8000 let mut same_text_selected = true;
8001 let mut selected_text = None;
8002
8003 let mut selections_iter = selections.iter().peekable();
8004 while let Some(selection) = selections_iter.next() {
8005 if selection.start != selection.end {
8006 only_carets = false;
8007 }
8008
8009 if same_text_selected {
8010 if selected_text.is_none() {
8011 selected_text =
8012 Some(buffer.text_for_range(selection.range()).collect::<String>());
8013 }
8014
8015 if let Some(next_selection) = selections_iter.peek() {
8016 if next_selection.range().len() == selection.range().len() {
8017 let next_selected_text = buffer
8018 .text_for_range(next_selection.range())
8019 .collect::<String>();
8020 if Some(next_selected_text) != selected_text {
8021 same_text_selected = false;
8022 selected_text = None;
8023 }
8024 } else {
8025 same_text_selected = false;
8026 selected_text = None;
8027 }
8028 }
8029 }
8030 }
8031
8032 if only_carets {
8033 for selection in &mut selections {
8034 let word_range = movement::surrounding_word(
8035 &display_map,
8036 selection.start.to_display_point(&display_map),
8037 );
8038 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8039 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8040 selection.goal = SelectionGoal::None;
8041 selection.reversed = false;
8042 }
8043 if selections.len() == 1 {
8044 let selection = selections
8045 .last()
8046 .expect("ensured that there's only one selection");
8047 let query = buffer
8048 .text_for_range(selection.start..selection.end)
8049 .collect::<String>();
8050 let is_empty = query.is_empty();
8051 let select_state = SelectNextState {
8052 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8053 wordwise: true,
8054 done: is_empty,
8055 };
8056 self.select_prev_state = Some(select_state);
8057 } else {
8058 self.select_prev_state = None;
8059 }
8060
8061 self.unfold_ranges(
8062 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8063 false,
8064 true,
8065 cx,
8066 );
8067 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8068 s.select(selections);
8069 });
8070 } else if let Some(selected_text) = selected_text {
8071 self.select_prev_state = Some(SelectNextState {
8072 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8073 wordwise: false,
8074 done: false,
8075 });
8076 self.select_previous(action, cx)?;
8077 }
8078 }
8079 Ok(())
8080 }
8081
8082 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8083 let text_layout_details = &self.text_layout_details(cx);
8084 self.transact(cx, |this, cx| {
8085 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8086 let mut edits = Vec::new();
8087 let mut selection_edit_ranges = Vec::new();
8088 let mut last_toggled_row = None;
8089 let snapshot = this.buffer.read(cx).read(cx);
8090 let empty_str: Arc<str> = Arc::default();
8091 let mut suffixes_inserted = Vec::new();
8092
8093 fn comment_prefix_range(
8094 snapshot: &MultiBufferSnapshot,
8095 row: MultiBufferRow,
8096 comment_prefix: &str,
8097 comment_prefix_whitespace: &str,
8098 ) -> Range<Point> {
8099 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8100
8101 let mut line_bytes = snapshot
8102 .bytes_in_range(start..snapshot.max_point())
8103 .flatten()
8104 .copied();
8105
8106 // If this line currently begins with the line comment prefix, then record
8107 // the range containing the prefix.
8108 if line_bytes
8109 .by_ref()
8110 .take(comment_prefix.len())
8111 .eq(comment_prefix.bytes())
8112 {
8113 // Include any whitespace that matches the comment prefix.
8114 let matching_whitespace_len = line_bytes
8115 .zip(comment_prefix_whitespace.bytes())
8116 .take_while(|(a, b)| a == b)
8117 .count() as u32;
8118 let end = Point::new(
8119 start.row,
8120 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8121 );
8122 start..end
8123 } else {
8124 start..start
8125 }
8126 }
8127
8128 fn comment_suffix_range(
8129 snapshot: &MultiBufferSnapshot,
8130 row: MultiBufferRow,
8131 comment_suffix: &str,
8132 comment_suffix_has_leading_space: bool,
8133 ) -> Range<Point> {
8134 let end = Point::new(row.0, snapshot.line_len(row));
8135 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8136
8137 let mut line_end_bytes = snapshot
8138 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8139 .flatten()
8140 .copied();
8141
8142 let leading_space_len = if suffix_start_column > 0
8143 && line_end_bytes.next() == Some(b' ')
8144 && comment_suffix_has_leading_space
8145 {
8146 1
8147 } else {
8148 0
8149 };
8150
8151 // If this line currently begins with the line comment prefix, then record
8152 // the range containing the prefix.
8153 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8154 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8155 start..end
8156 } else {
8157 end..end
8158 }
8159 }
8160
8161 // TODO: Handle selections that cross excerpts
8162 for selection in &mut selections {
8163 let start_column = snapshot
8164 .indent_size_for_line(MultiBufferRow(selection.start.row))
8165 .len;
8166 let language = if let Some(language) =
8167 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8168 {
8169 language
8170 } else {
8171 continue;
8172 };
8173
8174 selection_edit_ranges.clear();
8175
8176 // If multiple selections contain a given row, avoid processing that
8177 // row more than once.
8178 let mut start_row = MultiBufferRow(selection.start.row);
8179 if last_toggled_row == Some(start_row) {
8180 start_row = start_row.next_row();
8181 }
8182 let end_row =
8183 if selection.end.row > selection.start.row && selection.end.column == 0 {
8184 MultiBufferRow(selection.end.row - 1)
8185 } else {
8186 MultiBufferRow(selection.end.row)
8187 };
8188 last_toggled_row = Some(end_row);
8189
8190 if start_row > end_row {
8191 continue;
8192 }
8193
8194 // If the language has line comments, toggle those.
8195 let full_comment_prefixes = language.line_comment_prefixes();
8196 if !full_comment_prefixes.is_empty() {
8197 let first_prefix = full_comment_prefixes
8198 .first()
8199 .expect("prefixes is non-empty");
8200 let prefix_trimmed_lengths = full_comment_prefixes
8201 .iter()
8202 .map(|p| p.trim_end_matches(' ').len())
8203 .collect::<SmallVec<[usize; 4]>>();
8204
8205 let mut all_selection_lines_are_comments = true;
8206
8207 for row in start_row.0..=end_row.0 {
8208 let row = MultiBufferRow(row);
8209 if start_row < end_row && snapshot.is_line_blank(row) {
8210 continue;
8211 }
8212
8213 let prefix_range = full_comment_prefixes
8214 .iter()
8215 .zip(prefix_trimmed_lengths.iter().copied())
8216 .map(|(prefix, trimmed_prefix_len)| {
8217 comment_prefix_range(
8218 snapshot.deref(),
8219 row,
8220 &prefix[..trimmed_prefix_len],
8221 &prefix[trimmed_prefix_len..],
8222 )
8223 })
8224 .max_by_key(|range| range.end.column - range.start.column)
8225 .expect("prefixes is non-empty");
8226
8227 if prefix_range.is_empty() {
8228 all_selection_lines_are_comments = false;
8229 }
8230
8231 selection_edit_ranges.push(prefix_range);
8232 }
8233
8234 if all_selection_lines_are_comments {
8235 edits.extend(
8236 selection_edit_ranges
8237 .iter()
8238 .cloned()
8239 .map(|range| (range, empty_str.clone())),
8240 );
8241 } else {
8242 let min_column = selection_edit_ranges
8243 .iter()
8244 .map(|range| range.start.column)
8245 .min()
8246 .unwrap_or(0);
8247 edits.extend(selection_edit_ranges.iter().map(|range| {
8248 let position = Point::new(range.start.row, min_column);
8249 (position..position, first_prefix.clone())
8250 }));
8251 }
8252 } else if let Some((full_comment_prefix, comment_suffix)) =
8253 language.block_comment_delimiters()
8254 {
8255 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8256 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8257 let prefix_range = comment_prefix_range(
8258 snapshot.deref(),
8259 start_row,
8260 comment_prefix,
8261 comment_prefix_whitespace,
8262 );
8263 let suffix_range = comment_suffix_range(
8264 snapshot.deref(),
8265 end_row,
8266 comment_suffix.trim_start_matches(' '),
8267 comment_suffix.starts_with(' '),
8268 );
8269
8270 if prefix_range.is_empty() || suffix_range.is_empty() {
8271 edits.push((
8272 prefix_range.start..prefix_range.start,
8273 full_comment_prefix.clone(),
8274 ));
8275 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8276 suffixes_inserted.push((end_row, comment_suffix.len()));
8277 } else {
8278 edits.push((prefix_range, empty_str.clone()));
8279 edits.push((suffix_range, empty_str.clone()));
8280 }
8281 } else {
8282 continue;
8283 }
8284 }
8285
8286 drop(snapshot);
8287 this.buffer.update(cx, |buffer, cx| {
8288 buffer.edit(edits, None, cx);
8289 });
8290
8291 // Adjust selections so that they end before any comment suffixes that
8292 // were inserted.
8293 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8294 let mut selections = this.selections.all::<Point>(cx);
8295 let snapshot = this.buffer.read(cx).read(cx);
8296 for selection in &mut selections {
8297 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8298 match row.cmp(&MultiBufferRow(selection.end.row)) {
8299 Ordering::Less => {
8300 suffixes_inserted.next();
8301 continue;
8302 }
8303 Ordering::Greater => break,
8304 Ordering::Equal => {
8305 if selection.end.column == snapshot.line_len(row) {
8306 if selection.is_empty() {
8307 selection.start.column -= suffix_len as u32;
8308 }
8309 selection.end.column -= suffix_len as u32;
8310 }
8311 break;
8312 }
8313 }
8314 }
8315 }
8316
8317 drop(snapshot);
8318 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8319
8320 let selections = this.selections.all::<Point>(cx);
8321 let selections_on_single_row = selections.windows(2).all(|selections| {
8322 selections[0].start.row == selections[1].start.row
8323 && selections[0].end.row == selections[1].end.row
8324 && selections[0].start.row == selections[0].end.row
8325 });
8326 let selections_selecting = selections
8327 .iter()
8328 .any(|selection| selection.start != selection.end);
8329 let advance_downwards = action.advance_downwards
8330 && selections_on_single_row
8331 && !selections_selecting
8332 && !matches!(this.mode, EditorMode::SingleLine { .. });
8333
8334 if advance_downwards {
8335 let snapshot = this.buffer.read(cx).snapshot(cx);
8336
8337 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8338 s.move_cursors_with(|display_snapshot, display_point, _| {
8339 let mut point = display_point.to_point(display_snapshot);
8340 point.row += 1;
8341 point = snapshot.clip_point(point, Bias::Left);
8342 let display_point = point.to_display_point(display_snapshot);
8343 let goal = SelectionGoal::HorizontalPosition(
8344 display_snapshot
8345 .x_for_display_point(display_point, &text_layout_details)
8346 .into(),
8347 );
8348 (display_point, goal)
8349 })
8350 });
8351 }
8352 });
8353 }
8354
8355 pub fn select_enclosing_symbol(
8356 &mut self,
8357 _: &SelectEnclosingSymbol,
8358 cx: &mut ViewContext<Self>,
8359 ) {
8360 let buffer = self.buffer.read(cx).snapshot(cx);
8361 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8362
8363 fn update_selection(
8364 selection: &Selection<usize>,
8365 buffer_snap: &MultiBufferSnapshot,
8366 ) -> Option<Selection<usize>> {
8367 let cursor = selection.head();
8368 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8369 for symbol in symbols.iter().rev() {
8370 let start = symbol.range.start.to_offset(&buffer_snap);
8371 let end = symbol.range.end.to_offset(&buffer_snap);
8372 let new_range = start..end;
8373 if start < selection.start || end > selection.end {
8374 return Some(Selection {
8375 id: selection.id,
8376 start: new_range.start,
8377 end: new_range.end,
8378 goal: SelectionGoal::None,
8379 reversed: selection.reversed,
8380 });
8381 }
8382 }
8383 None
8384 }
8385
8386 let mut selected_larger_symbol = false;
8387 let new_selections = old_selections
8388 .iter()
8389 .map(|selection| match update_selection(selection, &buffer) {
8390 Some(new_selection) => {
8391 if new_selection.range() != selection.range() {
8392 selected_larger_symbol = true;
8393 }
8394 new_selection
8395 }
8396 None => selection.clone(),
8397 })
8398 .collect::<Vec<_>>();
8399
8400 if selected_larger_symbol {
8401 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8402 s.select(new_selections);
8403 });
8404 }
8405 }
8406
8407 pub fn select_larger_syntax_node(
8408 &mut self,
8409 _: &SelectLargerSyntaxNode,
8410 cx: &mut ViewContext<Self>,
8411 ) {
8412 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8413 let buffer = self.buffer.read(cx).snapshot(cx);
8414 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8415
8416 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8417 let mut selected_larger_node = false;
8418 let new_selections = old_selections
8419 .iter()
8420 .map(|selection| {
8421 let old_range = selection.start..selection.end;
8422 let mut new_range = old_range.clone();
8423 while let Some(containing_range) =
8424 buffer.range_for_syntax_ancestor(new_range.clone())
8425 {
8426 new_range = containing_range;
8427 if !display_map.intersects_fold(new_range.start)
8428 && !display_map.intersects_fold(new_range.end)
8429 {
8430 break;
8431 }
8432 }
8433
8434 selected_larger_node |= new_range != old_range;
8435 Selection {
8436 id: selection.id,
8437 start: new_range.start,
8438 end: new_range.end,
8439 goal: SelectionGoal::None,
8440 reversed: selection.reversed,
8441 }
8442 })
8443 .collect::<Vec<_>>();
8444
8445 if selected_larger_node {
8446 stack.push(old_selections);
8447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8448 s.select(new_selections);
8449 });
8450 }
8451 self.select_larger_syntax_node_stack = stack;
8452 }
8453
8454 pub fn select_smaller_syntax_node(
8455 &mut self,
8456 _: &SelectSmallerSyntaxNode,
8457 cx: &mut ViewContext<Self>,
8458 ) {
8459 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8460 if let Some(selections) = stack.pop() {
8461 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8462 s.select(selections.to_vec());
8463 });
8464 }
8465 self.select_larger_syntax_node_stack = stack;
8466 }
8467
8468 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8469 if !EditorSettings::get_global(cx).gutter.runnables {
8470 self.clear_tasks();
8471 return Task::ready(());
8472 }
8473 let project = self.project.clone();
8474 cx.spawn(|this, mut cx| async move {
8475 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8476 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8477 }) else {
8478 return;
8479 };
8480
8481 let Some(project) = project else {
8482 return;
8483 };
8484
8485 let hide_runnables = project
8486 .update(&mut cx, |project, cx| {
8487 // Do not display any test indicators in non-dev server remote projects.
8488 project.is_remote() && project.ssh_connection_string(cx).is_none()
8489 })
8490 .unwrap_or(true);
8491 if hide_runnables {
8492 return;
8493 }
8494 let new_rows =
8495 cx.background_executor()
8496 .spawn({
8497 let snapshot = display_snapshot.clone();
8498 async move {
8499 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8500 }
8501 })
8502 .await;
8503 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8504
8505 this.update(&mut cx, |this, _| {
8506 this.clear_tasks();
8507 for (key, value) in rows {
8508 this.insert_tasks(key, value);
8509 }
8510 })
8511 .ok();
8512 })
8513 }
8514 fn fetch_runnable_ranges(
8515 snapshot: &DisplaySnapshot,
8516 range: Range<Anchor>,
8517 ) -> Vec<language::RunnableRange> {
8518 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8519 }
8520
8521 fn runnable_rows(
8522 project: Model<Project>,
8523 snapshot: DisplaySnapshot,
8524 runnable_ranges: Vec<RunnableRange>,
8525 mut cx: AsyncWindowContext,
8526 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8527 runnable_ranges
8528 .into_iter()
8529 .filter_map(|mut runnable| {
8530 let tasks = cx
8531 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8532 .ok()?;
8533 if tasks.is_empty() {
8534 return None;
8535 }
8536
8537 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8538
8539 let row = snapshot
8540 .buffer_snapshot
8541 .buffer_line_for_row(MultiBufferRow(point.row))?
8542 .1
8543 .start
8544 .row;
8545
8546 let context_range =
8547 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8548 Some((
8549 (runnable.buffer_id, row),
8550 RunnableTasks {
8551 templates: tasks,
8552 offset: MultiBufferOffset(runnable.run_range.start),
8553 context_range,
8554 column: point.column,
8555 extra_variables: runnable.extra_captures,
8556 },
8557 ))
8558 })
8559 .collect()
8560 }
8561
8562 fn templates_with_tags(
8563 project: &Model<Project>,
8564 runnable: &mut Runnable,
8565 cx: &WindowContext<'_>,
8566 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8567 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8568 let (worktree_id, file) = project
8569 .buffer_for_id(runnable.buffer, cx)
8570 .and_then(|buffer| buffer.read(cx).file())
8571 .map(|file| (WorktreeId::from_usize(file.worktree_id()), file.clone()))
8572 .unzip();
8573
8574 (project.task_inventory().clone(), worktree_id, file)
8575 });
8576
8577 let inventory = inventory.read(cx);
8578 let tags = mem::take(&mut runnable.tags);
8579 let mut tags: Vec<_> = tags
8580 .into_iter()
8581 .flat_map(|tag| {
8582 let tag = tag.0.clone();
8583 inventory
8584 .list_tasks(
8585 file.clone(),
8586 Some(runnable.language.clone()),
8587 worktree_id,
8588 cx,
8589 )
8590 .into_iter()
8591 .filter(move |(_, template)| {
8592 template.tags.iter().any(|source_tag| source_tag == &tag)
8593 })
8594 })
8595 .sorted_by_key(|(kind, _)| kind.to_owned())
8596 .collect();
8597 if let Some((leading_tag_source, _)) = tags.first() {
8598 // Strongest source wins; if we have worktree tag binding, prefer that to
8599 // global and language bindings;
8600 // if we have a global binding, prefer that to language binding.
8601 let first_mismatch = tags
8602 .iter()
8603 .position(|(tag_source, _)| tag_source != leading_tag_source);
8604 if let Some(index) = first_mismatch {
8605 tags.truncate(index);
8606 }
8607 }
8608
8609 tags
8610 }
8611
8612 pub fn move_to_enclosing_bracket(
8613 &mut self,
8614 _: &MoveToEnclosingBracket,
8615 cx: &mut ViewContext<Self>,
8616 ) {
8617 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8618 s.move_offsets_with(|snapshot, selection| {
8619 let Some(enclosing_bracket_ranges) =
8620 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8621 else {
8622 return;
8623 };
8624
8625 let mut best_length = usize::MAX;
8626 let mut best_inside = false;
8627 let mut best_in_bracket_range = false;
8628 let mut best_destination = None;
8629 for (open, close) in enclosing_bracket_ranges {
8630 let close = close.to_inclusive();
8631 let length = close.end() - open.start;
8632 let inside = selection.start >= open.end && selection.end <= *close.start();
8633 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8634 || close.contains(&selection.head());
8635
8636 // If best is next to a bracket and current isn't, skip
8637 if !in_bracket_range && best_in_bracket_range {
8638 continue;
8639 }
8640
8641 // Prefer smaller lengths unless best is inside and current isn't
8642 if length > best_length && (best_inside || !inside) {
8643 continue;
8644 }
8645
8646 best_length = length;
8647 best_inside = inside;
8648 best_in_bracket_range = in_bracket_range;
8649 best_destination = Some(
8650 if close.contains(&selection.start) && close.contains(&selection.end) {
8651 if inside {
8652 open.end
8653 } else {
8654 open.start
8655 }
8656 } else {
8657 if inside {
8658 *close.start()
8659 } else {
8660 *close.end()
8661 }
8662 },
8663 );
8664 }
8665
8666 if let Some(destination) = best_destination {
8667 selection.collapse_to(destination, SelectionGoal::None);
8668 }
8669 })
8670 });
8671 }
8672
8673 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8674 self.end_selection(cx);
8675 self.selection_history.mode = SelectionHistoryMode::Undoing;
8676 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8677 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8678 self.select_next_state = entry.select_next_state;
8679 self.select_prev_state = entry.select_prev_state;
8680 self.add_selections_state = entry.add_selections_state;
8681 self.request_autoscroll(Autoscroll::newest(), cx);
8682 }
8683 self.selection_history.mode = SelectionHistoryMode::Normal;
8684 }
8685
8686 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8687 self.end_selection(cx);
8688 self.selection_history.mode = SelectionHistoryMode::Redoing;
8689 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8690 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8691 self.select_next_state = entry.select_next_state;
8692 self.select_prev_state = entry.select_prev_state;
8693 self.add_selections_state = entry.add_selections_state;
8694 self.request_autoscroll(Autoscroll::newest(), cx);
8695 }
8696 self.selection_history.mode = SelectionHistoryMode::Normal;
8697 }
8698
8699 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8700 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8701 }
8702
8703 pub fn expand_excerpts_down(
8704 &mut self,
8705 action: &ExpandExcerptsDown,
8706 cx: &mut ViewContext<Self>,
8707 ) {
8708 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8709 }
8710
8711 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8712 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8713 }
8714
8715 pub fn expand_excerpts_for_direction(
8716 &mut self,
8717 lines: u32,
8718 direction: ExpandExcerptDirection,
8719 cx: &mut ViewContext<Self>,
8720 ) {
8721 let selections = self.selections.disjoint_anchors();
8722
8723 let lines = if lines == 0 {
8724 EditorSettings::get_global(cx).expand_excerpt_lines
8725 } else {
8726 lines
8727 };
8728
8729 self.buffer.update(cx, |buffer, cx| {
8730 buffer.expand_excerpts(
8731 selections
8732 .into_iter()
8733 .map(|selection| selection.head().excerpt_id)
8734 .dedup(),
8735 lines,
8736 direction,
8737 cx,
8738 )
8739 })
8740 }
8741
8742 pub fn expand_excerpt(
8743 &mut self,
8744 excerpt: ExcerptId,
8745 direction: ExpandExcerptDirection,
8746 cx: &mut ViewContext<Self>,
8747 ) {
8748 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8749 self.buffer.update(cx, |buffer, cx| {
8750 buffer.expand_excerpts([excerpt], lines, direction, cx)
8751 })
8752 }
8753
8754 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8755 self.go_to_diagnostic_impl(Direction::Next, cx)
8756 }
8757
8758 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8759 self.go_to_diagnostic_impl(Direction::Prev, cx)
8760 }
8761
8762 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8763 let buffer = self.buffer.read(cx).snapshot(cx);
8764 let selection = self.selections.newest::<usize>(cx);
8765
8766 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8767 if direction == Direction::Next {
8768 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8769 let (group_id, jump_to) = popover.activation_info();
8770 if self.activate_diagnostics(group_id, cx) {
8771 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8772 let mut new_selection = s.newest_anchor().clone();
8773 new_selection.collapse_to(jump_to, SelectionGoal::None);
8774 s.select_anchors(vec![new_selection.clone()]);
8775 });
8776 }
8777 return;
8778 }
8779 }
8780
8781 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8782 active_diagnostics
8783 .primary_range
8784 .to_offset(&buffer)
8785 .to_inclusive()
8786 });
8787 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8788 if active_primary_range.contains(&selection.head()) {
8789 *active_primary_range.start()
8790 } else {
8791 selection.head()
8792 }
8793 } else {
8794 selection.head()
8795 };
8796 let snapshot = self.snapshot(cx);
8797 loop {
8798 let diagnostics = if direction == Direction::Prev {
8799 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8800 } else {
8801 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8802 }
8803 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8804 let group = diagnostics
8805 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8806 // be sorted in a stable way
8807 // skip until we are at current active diagnostic, if it exists
8808 .skip_while(|entry| {
8809 (match direction {
8810 Direction::Prev => entry.range.start >= search_start,
8811 Direction::Next => entry.range.start <= search_start,
8812 }) && self
8813 .active_diagnostics
8814 .as_ref()
8815 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8816 })
8817 .find_map(|entry| {
8818 if entry.diagnostic.is_primary
8819 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8820 && !entry.range.is_empty()
8821 // if we match with the active diagnostic, skip it
8822 && Some(entry.diagnostic.group_id)
8823 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8824 {
8825 Some((entry.range, entry.diagnostic.group_id))
8826 } else {
8827 None
8828 }
8829 });
8830
8831 if let Some((primary_range, group_id)) = group {
8832 if self.activate_diagnostics(group_id, cx) {
8833 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8834 s.select(vec![Selection {
8835 id: selection.id,
8836 start: primary_range.start,
8837 end: primary_range.start,
8838 reversed: false,
8839 goal: SelectionGoal::None,
8840 }]);
8841 });
8842 }
8843 break;
8844 } else {
8845 // Cycle around to the start of the buffer, potentially moving back to the start of
8846 // the currently active diagnostic.
8847 active_primary_range.take();
8848 if direction == Direction::Prev {
8849 if search_start == buffer.len() {
8850 break;
8851 } else {
8852 search_start = buffer.len();
8853 }
8854 } else if search_start == 0 {
8855 break;
8856 } else {
8857 search_start = 0;
8858 }
8859 }
8860 }
8861 }
8862
8863 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8864 let snapshot = self
8865 .display_map
8866 .update(cx, |display_map, cx| display_map.snapshot(cx));
8867 let selection = self.selections.newest::<Point>(cx);
8868
8869 if !self.seek_in_direction(
8870 &snapshot,
8871 selection.head(),
8872 false,
8873 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8874 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8875 ),
8876 cx,
8877 ) {
8878 let wrapped_point = Point::zero();
8879 self.seek_in_direction(
8880 &snapshot,
8881 wrapped_point,
8882 true,
8883 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8884 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8885 ),
8886 cx,
8887 );
8888 }
8889 }
8890
8891 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8892 let snapshot = self
8893 .display_map
8894 .update(cx, |display_map, cx| display_map.snapshot(cx));
8895 let selection = self.selections.newest::<Point>(cx);
8896
8897 if !self.seek_in_direction(
8898 &snapshot,
8899 selection.head(),
8900 false,
8901 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8902 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8903 ),
8904 cx,
8905 ) {
8906 let wrapped_point = snapshot.buffer_snapshot.max_point();
8907 self.seek_in_direction(
8908 &snapshot,
8909 wrapped_point,
8910 true,
8911 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8912 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8913 ),
8914 cx,
8915 );
8916 }
8917 }
8918
8919 fn seek_in_direction(
8920 &mut self,
8921 snapshot: &DisplaySnapshot,
8922 initial_point: Point,
8923 is_wrapped: bool,
8924 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8925 cx: &mut ViewContext<Editor>,
8926 ) -> bool {
8927 let display_point = initial_point.to_display_point(snapshot);
8928 let mut hunks = hunks
8929 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8930 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
8931 .dedup();
8932
8933 if let Some(hunk) = hunks.next() {
8934 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8935 let row = hunk.start_display_row();
8936 let point = DisplayPoint::new(row, 0);
8937 s.select_display_ranges([point..point]);
8938 });
8939
8940 true
8941 } else {
8942 false
8943 }
8944 }
8945
8946 pub fn go_to_definition(
8947 &mut self,
8948 _: &GoToDefinition,
8949 cx: &mut ViewContext<Self>,
8950 ) -> Task<Result<bool>> {
8951 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8952 }
8953
8954 pub fn go_to_implementation(
8955 &mut self,
8956 _: &GoToImplementation,
8957 cx: &mut ViewContext<Self>,
8958 ) -> Task<Result<bool>> {
8959 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8960 }
8961
8962 pub fn go_to_implementation_split(
8963 &mut self,
8964 _: &GoToImplementationSplit,
8965 cx: &mut ViewContext<Self>,
8966 ) -> Task<Result<bool>> {
8967 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8968 }
8969
8970 pub fn go_to_type_definition(
8971 &mut self,
8972 _: &GoToTypeDefinition,
8973 cx: &mut ViewContext<Self>,
8974 ) -> Task<Result<bool>> {
8975 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8976 }
8977
8978 pub fn go_to_definition_split(
8979 &mut self,
8980 _: &GoToDefinitionSplit,
8981 cx: &mut ViewContext<Self>,
8982 ) -> Task<Result<bool>> {
8983 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8984 }
8985
8986 pub fn go_to_type_definition_split(
8987 &mut self,
8988 _: &GoToTypeDefinitionSplit,
8989 cx: &mut ViewContext<Self>,
8990 ) -> Task<Result<bool>> {
8991 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8992 }
8993
8994 fn go_to_definition_of_kind(
8995 &mut self,
8996 kind: GotoDefinitionKind,
8997 split: bool,
8998 cx: &mut ViewContext<Self>,
8999 ) -> Task<Result<bool>> {
9000 let Some(workspace) = self.workspace() else {
9001 return Task::ready(Ok(false));
9002 };
9003 let buffer = self.buffer.read(cx);
9004 let head = self.selections.newest::<usize>(cx).head();
9005 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9006 text_anchor
9007 } else {
9008 return Task::ready(Ok(false));
9009 };
9010
9011 let project = workspace.read(cx).project().clone();
9012 let definitions = project.update(cx, |project, cx| match kind {
9013 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9014 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9015 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9016 });
9017
9018 cx.spawn(|editor, mut cx| async move {
9019 let definitions = definitions.await?;
9020 let navigated = editor
9021 .update(&mut cx, |editor, cx| {
9022 editor.navigate_to_hover_links(
9023 Some(kind),
9024 definitions
9025 .into_iter()
9026 .filter(|location| {
9027 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9028 })
9029 .map(HoverLink::Text)
9030 .collect::<Vec<_>>(),
9031 split,
9032 cx,
9033 )
9034 })?
9035 .await?;
9036 anyhow::Ok(navigated)
9037 })
9038 }
9039
9040 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9041 let position = self.selections.newest_anchor().head();
9042 let Some((buffer, buffer_position)) =
9043 self.buffer.read(cx).text_anchor_for_position(position, cx)
9044 else {
9045 return;
9046 };
9047
9048 cx.spawn(|editor, mut cx| async move {
9049 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9050 editor.update(&mut cx, |_, cx| {
9051 cx.open_url(&url);
9052 })
9053 } else {
9054 Ok(())
9055 }
9056 })
9057 .detach();
9058 }
9059
9060 pub(crate) fn navigate_to_hover_links(
9061 &mut self,
9062 kind: Option<GotoDefinitionKind>,
9063 mut definitions: Vec<HoverLink>,
9064 split: bool,
9065 cx: &mut ViewContext<Editor>,
9066 ) -> Task<Result<bool>> {
9067 // If there is one definition, just open it directly
9068 if definitions.len() == 1 {
9069 let definition = definitions.pop().unwrap();
9070 let target_task = match definition {
9071 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9072 HoverLink::InlayHint(lsp_location, server_id) => {
9073 self.compute_target_location(lsp_location, server_id, cx)
9074 }
9075 HoverLink::Url(url) => {
9076 cx.open_url(&url);
9077 Task::ready(Ok(None))
9078 }
9079 };
9080 cx.spawn(|editor, mut cx| async move {
9081 let target = target_task.await.context("target resolution task")?;
9082 if let Some(target) = target {
9083 editor.update(&mut cx, |editor, cx| {
9084 let Some(workspace) = editor.workspace() else {
9085 return false;
9086 };
9087 let pane = workspace.read(cx).active_pane().clone();
9088
9089 let range = target.range.to_offset(target.buffer.read(cx));
9090 let range = editor.range_for_match(&range);
9091
9092 /// If select range has more than one line, we
9093 /// just point the cursor to range.start.
9094 fn check_multiline_range(
9095 buffer: &Buffer,
9096 range: Range<usize>,
9097 ) -> Range<usize> {
9098 if buffer.offset_to_point(range.start).row
9099 == buffer.offset_to_point(range.end).row
9100 {
9101 range
9102 } else {
9103 range.start..range.start
9104 }
9105 }
9106
9107 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9108 let buffer = target.buffer.read(cx);
9109 let range = check_multiline_range(buffer, range);
9110 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9111 s.select_ranges([range]);
9112 });
9113 } else {
9114 cx.window_context().defer(move |cx| {
9115 let target_editor: View<Self> =
9116 workspace.update(cx, |workspace, cx| {
9117 let pane = if split {
9118 workspace.adjacent_pane(cx)
9119 } else {
9120 workspace.active_pane().clone()
9121 };
9122
9123 workspace.open_project_item(
9124 pane,
9125 target.buffer.clone(),
9126 true,
9127 true,
9128 cx,
9129 )
9130 });
9131 target_editor.update(cx, |target_editor, cx| {
9132 // When selecting a definition in a different buffer, disable the nav history
9133 // to avoid creating a history entry at the previous cursor location.
9134 pane.update(cx, |pane, _| pane.disable_history());
9135 let buffer = target.buffer.read(cx);
9136 let range = check_multiline_range(buffer, range);
9137 target_editor.change_selections(
9138 Some(Autoscroll::focused()),
9139 cx,
9140 |s| {
9141 s.select_ranges([range]);
9142 },
9143 );
9144 pane.update(cx, |pane, _| pane.enable_history());
9145 });
9146 });
9147 }
9148 true
9149 })
9150 } else {
9151 Ok(false)
9152 }
9153 })
9154 } else if !definitions.is_empty() {
9155 let replica_id = self.replica_id(cx);
9156 cx.spawn(|editor, mut cx| async move {
9157 let (title, location_tasks, workspace) = editor
9158 .update(&mut cx, |editor, cx| {
9159 let tab_kind = match kind {
9160 Some(GotoDefinitionKind::Implementation) => "Implementations",
9161 _ => "Definitions",
9162 };
9163 let title = definitions
9164 .iter()
9165 .find_map(|definition| match definition {
9166 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9167 let buffer = origin.buffer.read(cx);
9168 format!(
9169 "{} for {}",
9170 tab_kind,
9171 buffer
9172 .text_for_range(origin.range.clone())
9173 .collect::<String>()
9174 )
9175 }),
9176 HoverLink::InlayHint(_, _) => None,
9177 HoverLink::Url(_) => None,
9178 })
9179 .unwrap_or(tab_kind.to_string());
9180 let location_tasks = definitions
9181 .into_iter()
9182 .map(|definition| match definition {
9183 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9184 HoverLink::InlayHint(lsp_location, server_id) => {
9185 editor.compute_target_location(lsp_location, server_id, cx)
9186 }
9187 HoverLink::Url(_) => Task::ready(Ok(None)),
9188 })
9189 .collect::<Vec<_>>();
9190 (title, location_tasks, editor.workspace().clone())
9191 })
9192 .context("location tasks preparation")?;
9193
9194 let locations = futures::future::join_all(location_tasks)
9195 .await
9196 .into_iter()
9197 .filter_map(|location| location.transpose())
9198 .collect::<Result<_>>()
9199 .context("location tasks")?;
9200
9201 let Some(workspace) = workspace else {
9202 return Ok(false);
9203 };
9204 let opened = workspace
9205 .update(&mut cx, |workspace, cx| {
9206 Self::open_locations_in_multibuffer(
9207 workspace, locations, replica_id, title, split, cx,
9208 )
9209 })
9210 .ok();
9211
9212 anyhow::Ok(opened.is_some())
9213 })
9214 } else {
9215 Task::ready(Ok(false))
9216 }
9217 }
9218
9219 fn compute_target_location(
9220 &self,
9221 lsp_location: lsp::Location,
9222 server_id: LanguageServerId,
9223 cx: &mut ViewContext<Editor>,
9224 ) -> Task<anyhow::Result<Option<Location>>> {
9225 let Some(project) = self.project.clone() else {
9226 return Task::Ready(Some(Ok(None)));
9227 };
9228
9229 cx.spawn(move |editor, mut cx| async move {
9230 let location_task = editor.update(&mut cx, |editor, cx| {
9231 project.update(cx, |project, cx| {
9232 let language_server_name =
9233 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9234 project
9235 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9236 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9237 });
9238 language_server_name.map(|language_server_name| {
9239 project.open_local_buffer_via_lsp(
9240 lsp_location.uri.clone(),
9241 server_id,
9242 language_server_name,
9243 cx,
9244 )
9245 })
9246 })
9247 })?;
9248 let location = match location_task {
9249 Some(task) => Some({
9250 let target_buffer_handle = task.await.context("open local buffer")?;
9251 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9252 let target_start = target_buffer
9253 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9254 let target_end = target_buffer
9255 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9256 target_buffer.anchor_after(target_start)
9257 ..target_buffer.anchor_before(target_end)
9258 })?;
9259 Location {
9260 buffer: target_buffer_handle,
9261 range,
9262 }
9263 }),
9264 None => None,
9265 };
9266 Ok(location)
9267 })
9268 }
9269
9270 pub fn find_all_references(
9271 &mut self,
9272 _: &FindAllReferences,
9273 cx: &mut ViewContext<Self>,
9274 ) -> Option<Task<Result<()>>> {
9275 let multi_buffer = self.buffer.read(cx);
9276 let selection = self.selections.newest::<usize>(cx);
9277 let head = selection.head();
9278
9279 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9280 let head_anchor = multi_buffer_snapshot.anchor_at(
9281 head,
9282 if head < selection.tail() {
9283 Bias::Right
9284 } else {
9285 Bias::Left
9286 },
9287 );
9288
9289 match self
9290 .find_all_references_task_sources
9291 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9292 {
9293 Ok(_) => {
9294 log::info!(
9295 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9296 );
9297 return None;
9298 }
9299 Err(i) => {
9300 self.find_all_references_task_sources.insert(i, head_anchor);
9301 }
9302 }
9303
9304 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9305 let replica_id = self.replica_id(cx);
9306 let workspace = self.workspace()?;
9307 let project = workspace.read(cx).project().clone();
9308 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9309 Some(cx.spawn(|editor, mut cx| async move {
9310 let _cleanup = defer({
9311 let mut cx = cx.clone();
9312 move || {
9313 let _ = editor.update(&mut cx, |editor, _| {
9314 if let Ok(i) =
9315 editor
9316 .find_all_references_task_sources
9317 .binary_search_by(|anchor| {
9318 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9319 })
9320 {
9321 editor.find_all_references_task_sources.remove(i);
9322 }
9323 });
9324 }
9325 });
9326
9327 let locations = references.await?;
9328 if locations.is_empty() {
9329 return anyhow::Ok(());
9330 }
9331
9332 workspace.update(&mut cx, |workspace, cx| {
9333 let title = locations
9334 .first()
9335 .as_ref()
9336 .map(|location| {
9337 let buffer = location.buffer.read(cx);
9338 format!(
9339 "References to `{}`",
9340 buffer
9341 .text_for_range(location.range.clone())
9342 .collect::<String>()
9343 )
9344 })
9345 .unwrap();
9346 Self::open_locations_in_multibuffer(
9347 workspace, locations, replica_id, title, false, cx,
9348 );
9349 })
9350 }))
9351 }
9352
9353 /// Opens a multibuffer with the given project locations in it
9354 pub fn open_locations_in_multibuffer(
9355 workspace: &mut Workspace,
9356 mut locations: Vec<Location>,
9357 replica_id: ReplicaId,
9358 title: String,
9359 split: bool,
9360 cx: &mut ViewContext<Workspace>,
9361 ) {
9362 // If there are multiple definitions, open them in a multibuffer
9363 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9364 let mut locations = locations.into_iter().peekable();
9365 let mut ranges_to_highlight = Vec::new();
9366 let capability = workspace.project().read(cx).capability();
9367
9368 let excerpt_buffer = cx.new_model(|cx| {
9369 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9370 while let Some(location) = locations.next() {
9371 let buffer = location.buffer.read(cx);
9372 let mut ranges_for_buffer = Vec::new();
9373 let range = location.range.to_offset(buffer);
9374 ranges_for_buffer.push(range.clone());
9375
9376 while let Some(next_location) = locations.peek() {
9377 if next_location.buffer == location.buffer {
9378 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9379 locations.next();
9380 } else {
9381 break;
9382 }
9383 }
9384
9385 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9386 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9387 location.buffer.clone(),
9388 ranges_for_buffer,
9389 DEFAULT_MULTIBUFFER_CONTEXT,
9390 cx,
9391 ))
9392 }
9393
9394 multibuffer.with_title(title)
9395 });
9396
9397 let editor = cx.new_view(|cx| {
9398 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9399 });
9400 editor.update(cx, |editor, cx| {
9401 if let Some(first_range) = ranges_to_highlight.first() {
9402 editor.change_selections(None, cx, |selections| {
9403 selections.clear_disjoint();
9404 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9405 });
9406 }
9407 editor.highlight_background::<Self>(
9408 &ranges_to_highlight,
9409 |theme| theme.editor_highlighted_line_background,
9410 cx,
9411 );
9412 });
9413
9414 let item = Box::new(editor);
9415 let item_id = item.item_id();
9416
9417 if split {
9418 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9419 } else {
9420 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9421 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9422 pane.close_current_preview_item(cx)
9423 } else {
9424 None
9425 }
9426 });
9427 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9428 }
9429 workspace.active_pane().update(cx, |pane, cx| {
9430 pane.set_preview_item_id(Some(item_id), cx);
9431 });
9432 }
9433
9434 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9435 use language::ToOffset as _;
9436
9437 let project = self.project.clone()?;
9438 let selection = self.selections.newest_anchor().clone();
9439 let (cursor_buffer, cursor_buffer_position) = self
9440 .buffer
9441 .read(cx)
9442 .text_anchor_for_position(selection.head(), cx)?;
9443 let (tail_buffer, cursor_buffer_position_end) = self
9444 .buffer
9445 .read(cx)
9446 .text_anchor_for_position(selection.tail(), cx)?;
9447 if tail_buffer != cursor_buffer {
9448 return None;
9449 }
9450
9451 let snapshot = cursor_buffer.read(cx).snapshot();
9452 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9453 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9454 let prepare_rename = project.update(cx, |project, cx| {
9455 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9456 });
9457 drop(snapshot);
9458
9459 Some(cx.spawn(|this, mut cx| async move {
9460 let rename_range = if let Some(range) = prepare_rename.await? {
9461 Some(range)
9462 } else {
9463 this.update(&mut cx, |this, cx| {
9464 let buffer = this.buffer.read(cx).snapshot(cx);
9465 let mut buffer_highlights = this
9466 .document_highlights_for_position(selection.head(), &buffer)
9467 .filter(|highlight| {
9468 highlight.start.excerpt_id == selection.head().excerpt_id
9469 && highlight.end.excerpt_id == selection.head().excerpt_id
9470 });
9471 buffer_highlights
9472 .next()
9473 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9474 })?
9475 };
9476 if let Some(rename_range) = rename_range {
9477 this.update(&mut cx, |this, cx| {
9478 let snapshot = cursor_buffer.read(cx).snapshot();
9479 let rename_buffer_range = rename_range.to_offset(&snapshot);
9480 let cursor_offset_in_rename_range =
9481 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9482 let cursor_offset_in_rename_range_end =
9483 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9484
9485 this.take_rename(false, cx);
9486 let buffer = this.buffer.read(cx).read(cx);
9487 let cursor_offset = selection.head().to_offset(&buffer);
9488 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9489 let rename_end = rename_start + rename_buffer_range.len();
9490 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9491 let mut old_highlight_id = None;
9492 let old_name: Arc<str> = buffer
9493 .chunks(rename_start..rename_end, true)
9494 .map(|chunk| {
9495 if old_highlight_id.is_none() {
9496 old_highlight_id = chunk.syntax_highlight_id;
9497 }
9498 chunk.text
9499 })
9500 .collect::<String>()
9501 .into();
9502
9503 drop(buffer);
9504
9505 // Position the selection in the rename editor so that it matches the current selection.
9506 this.show_local_selections = false;
9507 let rename_editor = cx.new_view(|cx| {
9508 let mut editor = Editor::single_line(cx);
9509 editor.buffer.update(cx, |buffer, cx| {
9510 buffer.edit([(0..0, old_name.clone())], None, cx)
9511 });
9512 let rename_selection_range = match cursor_offset_in_rename_range
9513 .cmp(&cursor_offset_in_rename_range_end)
9514 {
9515 Ordering::Equal => {
9516 editor.select_all(&SelectAll, cx);
9517 return editor;
9518 }
9519 Ordering::Less => {
9520 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9521 }
9522 Ordering::Greater => {
9523 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9524 }
9525 };
9526 if rename_selection_range.end > old_name.len() {
9527 editor.select_all(&SelectAll, cx);
9528 } else {
9529 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9530 s.select_ranges([rename_selection_range]);
9531 });
9532 }
9533 editor
9534 });
9535 cx.subscribe(&rename_editor, |_, _, e, cx| match e {
9536 EditorEvent::Focused => cx.emit(EditorEvent::FocusedIn),
9537 _ => {}
9538 })
9539 .detach();
9540
9541 let write_highlights =
9542 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9543 let read_highlights =
9544 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9545 let ranges = write_highlights
9546 .iter()
9547 .flat_map(|(_, ranges)| ranges.iter())
9548 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9549 .cloned()
9550 .collect();
9551
9552 this.highlight_text::<Rename>(
9553 ranges,
9554 HighlightStyle {
9555 fade_out: Some(0.6),
9556 ..Default::default()
9557 },
9558 cx,
9559 );
9560 let rename_focus_handle = rename_editor.focus_handle(cx);
9561 cx.focus(&rename_focus_handle);
9562 let block_id = this.insert_blocks(
9563 [BlockProperties {
9564 style: BlockStyle::Flex,
9565 position: range.start,
9566 height: 1,
9567 render: Box::new({
9568 let rename_editor = rename_editor.clone();
9569 move |cx: &mut BlockContext| {
9570 let mut text_style = cx.editor_style.text.clone();
9571 if let Some(highlight_style) = old_highlight_id
9572 .and_then(|h| h.style(&cx.editor_style.syntax))
9573 {
9574 text_style = text_style.highlight(highlight_style);
9575 }
9576 div()
9577 .pl(cx.anchor_x)
9578 .child(EditorElement::new(
9579 &rename_editor,
9580 EditorStyle {
9581 background: cx.theme().system().transparent,
9582 local_player: cx.editor_style.local_player,
9583 text: text_style,
9584 scrollbar_width: cx.editor_style.scrollbar_width,
9585 syntax: cx.editor_style.syntax.clone(),
9586 status: cx.editor_style.status.clone(),
9587 inlay_hints_style: HighlightStyle {
9588 color: Some(cx.theme().status().hint),
9589 font_weight: Some(FontWeight::BOLD),
9590 ..HighlightStyle::default()
9591 },
9592 suggestions_style: HighlightStyle {
9593 color: Some(cx.theme().status().predictive),
9594 ..HighlightStyle::default()
9595 },
9596 },
9597 ))
9598 .into_any_element()
9599 }
9600 }),
9601 disposition: BlockDisposition::Below,
9602 }],
9603 Some(Autoscroll::fit()),
9604 cx,
9605 )[0];
9606 this.pending_rename = Some(RenameState {
9607 range,
9608 old_name,
9609 editor: rename_editor,
9610 block_id,
9611 });
9612 })?;
9613 }
9614
9615 Ok(())
9616 }))
9617 }
9618
9619 pub fn confirm_rename(
9620 &mut self,
9621 _: &ConfirmRename,
9622 cx: &mut ViewContext<Self>,
9623 ) -> Option<Task<Result<()>>> {
9624 let rename = self.take_rename(false, cx)?;
9625 let workspace = self.workspace()?;
9626 let (start_buffer, start) = self
9627 .buffer
9628 .read(cx)
9629 .text_anchor_for_position(rename.range.start, cx)?;
9630 let (end_buffer, end) = self
9631 .buffer
9632 .read(cx)
9633 .text_anchor_for_position(rename.range.end, cx)?;
9634 if start_buffer != end_buffer {
9635 return None;
9636 }
9637
9638 let buffer = start_buffer;
9639 let range = start..end;
9640 let old_name = rename.old_name;
9641 let new_name = rename.editor.read(cx).text(cx);
9642
9643 let rename = workspace
9644 .read(cx)
9645 .project()
9646 .clone()
9647 .update(cx, |project, cx| {
9648 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9649 });
9650 let workspace = workspace.downgrade();
9651
9652 Some(cx.spawn(|editor, mut cx| async move {
9653 let project_transaction = rename.await?;
9654 Self::open_project_transaction(
9655 &editor,
9656 workspace,
9657 project_transaction,
9658 format!("Rename: {} → {}", old_name, new_name),
9659 cx.clone(),
9660 )
9661 .await?;
9662
9663 editor.update(&mut cx, |editor, cx| {
9664 editor.refresh_document_highlights(cx);
9665 })?;
9666 Ok(())
9667 }))
9668 }
9669
9670 fn take_rename(
9671 &mut self,
9672 moving_cursor: bool,
9673 cx: &mut ViewContext<Self>,
9674 ) -> Option<RenameState> {
9675 let rename = self.pending_rename.take()?;
9676 if rename.editor.focus_handle(cx).is_focused(cx) {
9677 cx.focus(&self.focus_handle);
9678 }
9679
9680 self.remove_blocks(
9681 [rename.block_id].into_iter().collect(),
9682 Some(Autoscroll::fit()),
9683 cx,
9684 );
9685 self.clear_highlights::<Rename>(cx);
9686 self.show_local_selections = true;
9687
9688 if moving_cursor {
9689 let rename_editor = rename.editor.read(cx);
9690 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9691
9692 // Update the selection to match the position of the selection inside
9693 // the rename editor.
9694 let snapshot = self.buffer.read(cx).read(cx);
9695 let rename_range = rename.range.to_offset(&snapshot);
9696 let cursor_in_editor = snapshot
9697 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9698 .min(rename_range.end);
9699 drop(snapshot);
9700
9701 self.change_selections(None, cx, |s| {
9702 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9703 });
9704 } else {
9705 self.refresh_document_highlights(cx);
9706 }
9707
9708 Some(rename)
9709 }
9710
9711 pub fn pending_rename(&self) -> Option<&RenameState> {
9712 self.pending_rename.as_ref()
9713 }
9714
9715 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9716 let project = match &self.project {
9717 Some(project) => project.clone(),
9718 None => return None,
9719 };
9720
9721 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9722 }
9723
9724 fn perform_format(
9725 &mut self,
9726 project: Model<Project>,
9727 trigger: FormatTrigger,
9728 cx: &mut ViewContext<Self>,
9729 ) -> Task<Result<()>> {
9730 let buffer = self.buffer().clone();
9731 let mut buffers = buffer.read(cx).all_buffers();
9732 if trigger == FormatTrigger::Save {
9733 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9734 }
9735
9736 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9737 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9738
9739 cx.spawn(|_, mut cx| async move {
9740 let transaction = futures::select_biased! {
9741 () = timeout => {
9742 log::warn!("timed out waiting for formatting");
9743 None
9744 }
9745 transaction = format.log_err().fuse() => transaction,
9746 };
9747
9748 buffer
9749 .update(&mut cx, |buffer, cx| {
9750 if let Some(transaction) = transaction {
9751 if !buffer.is_singleton() {
9752 buffer.push_transaction(&transaction.0, cx);
9753 }
9754 }
9755
9756 cx.notify();
9757 })
9758 .ok();
9759
9760 Ok(())
9761 })
9762 }
9763
9764 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9765 if let Some(project) = self.project.clone() {
9766 self.buffer.update(cx, |multi_buffer, cx| {
9767 project.update(cx, |project, cx| {
9768 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9769 });
9770 })
9771 }
9772 }
9773
9774 fn cancel_language_server_work(
9775 &mut self,
9776 _: &CancelLanguageServerWork,
9777 cx: &mut ViewContext<Self>,
9778 ) {
9779 if let Some(project) = self.project.clone() {
9780 self.buffer.update(cx, |multi_buffer, cx| {
9781 project.update(cx, |project, cx| {
9782 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9783 });
9784 })
9785 }
9786 }
9787
9788 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9789 cx.show_character_palette();
9790 }
9791
9792 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9793 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9794 let buffer = self.buffer.read(cx).snapshot(cx);
9795 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9796 let is_valid = buffer
9797 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9798 .any(|entry| {
9799 entry.diagnostic.is_primary
9800 && !entry.range.is_empty()
9801 && entry.range.start == primary_range_start
9802 && entry.diagnostic.message == active_diagnostics.primary_message
9803 });
9804
9805 if is_valid != active_diagnostics.is_valid {
9806 active_diagnostics.is_valid = is_valid;
9807 let mut new_styles = HashMap::default();
9808 for (block_id, diagnostic) in &active_diagnostics.blocks {
9809 new_styles.insert(
9810 *block_id,
9811 (
9812 None,
9813 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
9814 ),
9815 );
9816 }
9817 self.display_map.update(cx, |display_map, cx| {
9818 display_map.replace_blocks(new_styles, cx)
9819 });
9820 }
9821 }
9822 }
9823
9824 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9825 self.dismiss_diagnostics(cx);
9826 let snapshot = self.snapshot(cx);
9827 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9828 let buffer = self.buffer.read(cx).snapshot(cx);
9829
9830 let mut primary_range = None;
9831 let mut primary_message = None;
9832 let mut group_end = Point::zero();
9833 let diagnostic_group = buffer
9834 .diagnostic_group::<MultiBufferPoint>(group_id)
9835 .filter_map(|entry| {
9836 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9837 && (entry.range.start.row == entry.range.end.row
9838 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9839 {
9840 return None;
9841 }
9842 if entry.range.end > group_end {
9843 group_end = entry.range.end;
9844 }
9845 if entry.diagnostic.is_primary {
9846 primary_range = Some(entry.range.clone());
9847 primary_message = Some(entry.diagnostic.message.clone());
9848 }
9849 Some(entry)
9850 })
9851 .collect::<Vec<_>>();
9852 let primary_range = primary_range?;
9853 let primary_message = primary_message?;
9854 let primary_range =
9855 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9856
9857 let blocks = display_map
9858 .insert_blocks(
9859 diagnostic_group.iter().map(|entry| {
9860 let diagnostic = entry.diagnostic.clone();
9861 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9862 BlockProperties {
9863 style: BlockStyle::Fixed,
9864 position: buffer.anchor_after(entry.range.start),
9865 height: message_height,
9866 render: diagnostic_block_renderer(diagnostic, None, true, true),
9867 disposition: BlockDisposition::Below,
9868 }
9869 }),
9870 cx,
9871 )
9872 .into_iter()
9873 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9874 .collect();
9875
9876 Some(ActiveDiagnosticGroup {
9877 primary_range,
9878 primary_message,
9879 group_id,
9880 blocks,
9881 is_valid: true,
9882 })
9883 });
9884 self.active_diagnostics.is_some()
9885 }
9886
9887 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9888 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9889 self.display_map.update(cx, |display_map, cx| {
9890 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9891 });
9892 cx.notify();
9893 }
9894 }
9895
9896 pub fn set_selections_from_remote(
9897 &mut self,
9898 selections: Vec<Selection<Anchor>>,
9899 pending_selection: Option<Selection<Anchor>>,
9900 cx: &mut ViewContext<Self>,
9901 ) {
9902 let old_cursor_position = self.selections.newest_anchor().head();
9903 self.selections.change_with(cx, |s| {
9904 s.select_anchors(selections);
9905 if let Some(pending_selection) = pending_selection {
9906 s.set_pending(pending_selection, SelectMode::Character);
9907 } else {
9908 s.clear_pending();
9909 }
9910 });
9911 self.selections_did_change(false, &old_cursor_position, true, cx);
9912 }
9913
9914 fn push_to_selection_history(&mut self) {
9915 self.selection_history.push(SelectionHistoryEntry {
9916 selections: self.selections.disjoint_anchors(),
9917 select_next_state: self.select_next_state.clone(),
9918 select_prev_state: self.select_prev_state.clone(),
9919 add_selections_state: self.add_selections_state.clone(),
9920 });
9921 }
9922
9923 pub fn transact(
9924 &mut self,
9925 cx: &mut ViewContext<Self>,
9926 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9927 ) -> Option<TransactionId> {
9928 self.start_transaction_at(Instant::now(), cx);
9929 update(self, cx);
9930 self.end_transaction_at(Instant::now(), cx)
9931 }
9932
9933 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9934 self.end_selection(cx);
9935 if let Some(tx_id) = self
9936 .buffer
9937 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9938 {
9939 self.selection_history
9940 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9941 cx.emit(EditorEvent::TransactionBegun {
9942 transaction_id: tx_id,
9943 })
9944 }
9945 }
9946
9947 fn end_transaction_at(
9948 &mut self,
9949 now: Instant,
9950 cx: &mut ViewContext<Self>,
9951 ) -> Option<TransactionId> {
9952 if let Some(transaction_id) = self
9953 .buffer
9954 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9955 {
9956 if let Some((_, end_selections)) =
9957 self.selection_history.transaction_mut(transaction_id)
9958 {
9959 *end_selections = Some(self.selections.disjoint_anchors());
9960 } else {
9961 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9962 }
9963
9964 cx.emit(EditorEvent::Edited { transaction_id });
9965 Some(transaction_id)
9966 } else {
9967 None
9968 }
9969 }
9970
9971 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9972 let mut fold_ranges = Vec::new();
9973
9974 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9975
9976 let selections = self.selections.all_adjusted(cx);
9977 for selection in selections {
9978 let range = selection.range().sorted();
9979 let buffer_start_row = range.start.row;
9980
9981 for row in (0..=range.end.row).rev() {
9982 if let Some((foldable_range, fold_text)) =
9983 display_map.foldable_range(MultiBufferRow(row))
9984 {
9985 if foldable_range.end.row >= buffer_start_row {
9986 fold_ranges.push((foldable_range, fold_text));
9987 if row <= range.start.row {
9988 break;
9989 }
9990 }
9991 }
9992 }
9993 }
9994
9995 self.fold_ranges(fold_ranges, true, cx);
9996 }
9997
9998 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9999 let buffer_row = fold_at.buffer_row;
10000 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10001
10002 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10003 let autoscroll = self
10004 .selections
10005 .all::<Point>(cx)
10006 .iter()
10007 .any(|selection| fold_range.overlaps(&selection.range()));
10008
10009 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10010 }
10011 }
10012
10013 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10014 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10015 let buffer = &display_map.buffer_snapshot;
10016 let selections = self.selections.all::<Point>(cx);
10017 let ranges = selections
10018 .iter()
10019 .map(|s| {
10020 let range = s.display_range(&display_map).sorted();
10021 let mut start = range.start.to_point(&display_map);
10022 let mut end = range.end.to_point(&display_map);
10023 start.column = 0;
10024 end.column = buffer.line_len(MultiBufferRow(end.row));
10025 start..end
10026 })
10027 .collect::<Vec<_>>();
10028
10029 self.unfold_ranges(ranges, true, true, cx);
10030 }
10031
10032 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10033 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10034
10035 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10036 ..Point::new(
10037 unfold_at.buffer_row.0,
10038 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10039 );
10040
10041 let autoscroll = self
10042 .selections
10043 .all::<Point>(cx)
10044 .iter()
10045 .any(|selection| selection.range().overlaps(&intersection_range));
10046
10047 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10048 }
10049
10050 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10051 let selections = self.selections.all::<Point>(cx);
10052 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10053 let line_mode = self.selections.line_mode;
10054 let ranges = selections.into_iter().map(|s| {
10055 if line_mode {
10056 let start = Point::new(s.start.row, 0);
10057 let end = Point::new(
10058 s.end.row,
10059 display_map
10060 .buffer_snapshot
10061 .line_len(MultiBufferRow(s.end.row)),
10062 );
10063 (start..end, display_map.fold_placeholder.clone())
10064 } else {
10065 (s.start..s.end, display_map.fold_placeholder.clone())
10066 }
10067 });
10068 self.fold_ranges(ranges, true, cx);
10069 }
10070
10071 pub fn fold_ranges<T: ToOffset + Clone>(
10072 &mut self,
10073 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10074 auto_scroll: bool,
10075 cx: &mut ViewContext<Self>,
10076 ) {
10077 let mut fold_ranges = Vec::new();
10078 let mut buffers_affected = HashMap::default();
10079 let multi_buffer = self.buffer().read(cx);
10080 for (fold_range, fold_text) in ranges {
10081 if let Some((_, buffer, _)) =
10082 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10083 {
10084 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10085 };
10086 fold_ranges.push((fold_range, fold_text));
10087 }
10088
10089 let mut ranges = fold_ranges.into_iter().peekable();
10090 if ranges.peek().is_some() {
10091 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10092
10093 if auto_scroll {
10094 self.request_autoscroll(Autoscroll::fit(), cx);
10095 }
10096
10097 for buffer in buffers_affected.into_values() {
10098 self.sync_expanded_diff_hunks(buffer, cx);
10099 }
10100
10101 cx.notify();
10102
10103 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10104 // Clear diagnostics block when folding a range that contains it.
10105 let snapshot = self.snapshot(cx);
10106 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10107 drop(snapshot);
10108 self.active_diagnostics = Some(active_diagnostics);
10109 self.dismiss_diagnostics(cx);
10110 } else {
10111 self.active_diagnostics = Some(active_diagnostics);
10112 }
10113 }
10114
10115 self.scrollbar_marker_state.dirty = true;
10116 }
10117 }
10118
10119 pub fn unfold_ranges<T: ToOffset + Clone>(
10120 &mut self,
10121 ranges: impl IntoIterator<Item = Range<T>>,
10122 inclusive: bool,
10123 auto_scroll: bool,
10124 cx: &mut ViewContext<Self>,
10125 ) {
10126 let mut unfold_ranges = Vec::new();
10127 let mut buffers_affected = HashMap::default();
10128 let multi_buffer = self.buffer().read(cx);
10129 for range in ranges {
10130 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10131 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10132 };
10133 unfold_ranges.push(range);
10134 }
10135
10136 let mut ranges = unfold_ranges.into_iter().peekable();
10137 if ranges.peek().is_some() {
10138 self.display_map
10139 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10140 if auto_scroll {
10141 self.request_autoscroll(Autoscroll::fit(), cx);
10142 }
10143
10144 for buffer in buffers_affected.into_values() {
10145 self.sync_expanded_diff_hunks(buffer, cx);
10146 }
10147
10148 cx.notify();
10149 self.scrollbar_marker_state.dirty = true;
10150 self.active_indent_guides_state.dirty = true;
10151 }
10152 }
10153
10154 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10155 if hovered != self.gutter_hovered {
10156 self.gutter_hovered = hovered;
10157 cx.notify();
10158 }
10159 }
10160
10161 pub fn insert_blocks(
10162 &mut self,
10163 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10164 autoscroll: Option<Autoscroll>,
10165 cx: &mut ViewContext<Self>,
10166 ) -> Vec<CustomBlockId> {
10167 let blocks = self
10168 .display_map
10169 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10170 if let Some(autoscroll) = autoscroll {
10171 self.request_autoscroll(autoscroll, cx);
10172 }
10173 blocks
10174 }
10175
10176 pub fn replace_blocks(
10177 &mut self,
10178 blocks: HashMap<CustomBlockId, (Option<u8>, RenderBlock)>,
10179 autoscroll: Option<Autoscroll>,
10180 cx: &mut ViewContext<Self>,
10181 ) {
10182 self.display_map
10183 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
10184 if let Some(autoscroll) = autoscroll {
10185 self.request_autoscroll(autoscroll, cx);
10186 }
10187 }
10188
10189 pub fn remove_blocks(
10190 &mut self,
10191 block_ids: HashSet<CustomBlockId>,
10192 autoscroll: Option<Autoscroll>,
10193 cx: &mut ViewContext<Self>,
10194 ) {
10195 self.display_map.update(cx, |display_map, cx| {
10196 display_map.remove_blocks(block_ids, cx)
10197 });
10198 if let Some(autoscroll) = autoscroll {
10199 self.request_autoscroll(autoscroll, cx);
10200 }
10201 }
10202
10203 pub fn row_for_block(
10204 &self,
10205 block_id: CustomBlockId,
10206 cx: &mut ViewContext<Self>,
10207 ) -> Option<DisplayRow> {
10208 self.display_map
10209 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10210 }
10211
10212 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10213 self.focused_block = Some(focused_block);
10214 }
10215
10216 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10217 self.focused_block.take()
10218 }
10219
10220 pub fn insert_creases(
10221 &mut self,
10222 creases: impl IntoIterator<Item = Crease>,
10223 cx: &mut ViewContext<Self>,
10224 ) -> Vec<CreaseId> {
10225 self.display_map
10226 .update(cx, |map, cx| map.insert_creases(creases, cx))
10227 }
10228
10229 pub fn remove_creases(
10230 &mut self,
10231 ids: impl IntoIterator<Item = CreaseId>,
10232 cx: &mut ViewContext<Self>,
10233 ) {
10234 self.display_map
10235 .update(cx, |map, cx| map.remove_creases(ids, cx));
10236 }
10237
10238 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10239 self.display_map
10240 .update(cx, |map, cx| map.snapshot(cx))
10241 .longest_row()
10242 }
10243
10244 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10245 self.display_map
10246 .update(cx, |map, cx| map.snapshot(cx))
10247 .max_point()
10248 }
10249
10250 pub fn text(&self, cx: &AppContext) -> String {
10251 self.buffer.read(cx).read(cx).text()
10252 }
10253
10254 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10255 let text = self.text(cx);
10256 let text = text.trim();
10257
10258 if text.is_empty() {
10259 return None;
10260 }
10261
10262 Some(text.to_string())
10263 }
10264
10265 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10266 self.transact(cx, |this, cx| {
10267 this.buffer
10268 .read(cx)
10269 .as_singleton()
10270 .expect("you can only call set_text on editors for singleton buffers")
10271 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10272 });
10273 }
10274
10275 pub fn display_text(&self, cx: &mut AppContext) -> String {
10276 self.display_map
10277 .update(cx, |map, cx| map.snapshot(cx))
10278 .text()
10279 }
10280
10281 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10282 let mut wrap_guides = smallvec::smallvec![];
10283
10284 if self.show_wrap_guides == Some(false) {
10285 return wrap_guides;
10286 }
10287
10288 let settings = self.buffer.read(cx).settings_at(0, cx);
10289 if settings.show_wrap_guides {
10290 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10291 wrap_guides.push((soft_wrap as usize, true));
10292 }
10293 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10294 }
10295
10296 wrap_guides
10297 }
10298
10299 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10300 let settings = self.buffer.read(cx).settings_at(0, cx);
10301 let mode = self
10302 .soft_wrap_mode_override
10303 .unwrap_or_else(|| settings.soft_wrap);
10304 match mode {
10305 language_settings::SoftWrap::None => SoftWrap::None,
10306 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10307 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10308 language_settings::SoftWrap::PreferredLineLength => {
10309 SoftWrap::Column(settings.preferred_line_length)
10310 }
10311 }
10312 }
10313
10314 pub fn set_soft_wrap_mode(
10315 &mut self,
10316 mode: language_settings::SoftWrap,
10317 cx: &mut ViewContext<Self>,
10318 ) {
10319 self.soft_wrap_mode_override = Some(mode);
10320 cx.notify();
10321 }
10322
10323 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10324 let rem_size = cx.rem_size();
10325 self.display_map.update(cx, |map, cx| {
10326 map.set_font(
10327 style.text.font(),
10328 style.text.font_size.to_pixels(rem_size),
10329 cx,
10330 )
10331 });
10332 self.style = Some(style);
10333 }
10334
10335 pub fn style(&self) -> Option<&EditorStyle> {
10336 self.style.as_ref()
10337 }
10338
10339 // Called by the element. This method is not designed to be called outside of the editor
10340 // element's layout code because it does not notify when rewrapping is computed synchronously.
10341 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10342 self.display_map
10343 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10344 }
10345
10346 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10347 if self.soft_wrap_mode_override.is_some() {
10348 self.soft_wrap_mode_override.take();
10349 } else {
10350 let soft_wrap = match self.soft_wrap_mode(cx) {
10351 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10352 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
10353 language_settings::SoftWrap::PreferLine
10354 }
10355 };
10356 self.soft_wrap_mode_override = Some(soft_wrap);
10357 }
10358 cx.notify();
10359 }
10360
10361 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10362 let Some(workspace) = self.workspace() else {
10363 return;
10364 };
10365 let fs = workspace.read(cx).app_state().fs.clone();
10366 let current_show = TabBarSettings::get_global(cx).show;
10367 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10368 setting.show = Some(!current_show);
10369 });
10370 }
10371
10372 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10373 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10374 self.buffer
10375 .read(cx)
10376 .settings_at(0, cx)
10377 .indent_guides
10378 .enabled
10379 });
10380 self.show_indent_guides = Some(!currently_enabled);
10381 cx.notify();
10382 }
10383
10384 fn should_show_indent_guides(&self) -> Option<bool> {
10385 self.show_indent_guides
10386 }
10387
10388 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10389 let mut editor_settings = EditorSettings::get_global(cx).clone();
10390 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10391 EditorSettings::override_global(editor_settings, cx);
10392 }
10393
10394 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10395 self.show_gutter = show_gutter;
10396 cx.notify();
10397 }
10398
10399 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10400 self.show_line_numbers = Some(show_line_numbers);
10401 cx.notify();
10402 }
10403
10404 pub fn set_show_git_diff_gutter(
10405 &mut self,
10406 show_git_diff_gutter: bool,
10407 cx: &mut ViewContext<Self>,
10408 ) {
10409 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10410 cx.notify();
10411 }
10412
10413 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10414 self.show_code_actions = Some(show_code_actions);
10415 cx.notify();
10416 }
10417
10418 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10419 self.show_runnables = Some(show_runnables);
10420 cx.notify();
10421 }
10422
10423 pub fn set_redact_all(&mut self, redact_all: bool, cx: &mut ViewContext<Self>) {
10424 self.redact_all = redact_all;
10425 cx.notify();
10426 }
10427
10428 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10429 self.show_wrap_guides = Some(show_wrap_guides);
10430 cx.notify();
10431 }
10432
10433 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10434 self.show_indent_guides = Some(show_indent_guides);
10435 cx.notify();
10436 }
10437
10438 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10439 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10440 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10441 if let Some(dir) = file.abs_path(cx).parent() {
10442 return Some(dir.to_owned());
10443 }
10444 }
10445
10446 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10447 return Some(project_path.path.to_path_buf());
10448 }
10449 }
10450
10451 None
10452 }
10453
10454 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10455 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10456 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10457 cx.reveal_path(&file.abs_path(cx));
10458 }
10459 }
10460 }
10461
10462 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10463 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10464 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10465 if let Some(path) = file.abs_path(cx).to_str() {
10466 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10467 }
10468 }
10469 }
10470 }
10471
10472 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10473 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10474 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10475 if let Some(path) = file.path().to_str() {
10476 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10477 }
10478 }
10479 }
10480 }
10481
10482 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10483 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10484
10485 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10486 self.start_git_blame(true, cx);
10487 }
10488
10489 cx.notify();
10490 }
10491
10492 pub fn toggle_git_blame_inline(
10493 &mut self,
10494 _: &ToggleGitBlameInline,
10495 cx: &mut ViewContext<Self>,
10496 ) {
10497 self.toggle_git_blame_inline_internal(true, cx);
10498 cx.notify();
10499 }
10500
10501 pub fn git_blame_inline_enabled(&self) -> bool {
10502 self.git_blame_inline_enabled
10503 }
10504
10505 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10506 self.show_selection_menu = self
10507 .show_selection_menu
10508 .map(|show_selections_menu| !show_selections_menu)
10509 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10510
10511 cx.notify();
10512 }
10513
10514 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10515 self.show_selection_menu
10516 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10517 }
10518
10519 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10520 if let Some(project) = self.project.as_ref() {
10521 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10522 return;
10523 };
10524
10525 if buffer.read(cx).file().is_none() {
10526 return;
10527 }
10528
10529 let focused = self.focus_handle(cx).contains_focused(cx);
10530
10531 let project = project.clone();
10532 let blame =
10533 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10534 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10535 self.blame = Some(blame);
10536 }
10537 }
10538
10539 fn toggle_git_blame_inline_internal(
10540 &mut self,
10541 user_triggered: bool,
10542 cx: &mut ViewContext<Self>,
10543 ) {
10544 if self.git_blame_inline_enabled {
10545 self.git_blame_inline_enabled = false;
10546 self.show_git_blame_inline = false;
10547 self.show_git_blame_inline_delay_task.take();
10548 } else {
10549 self.git_blame_inline_enabled = true;
10550 self.start_git_blame_inline(user_triggered, cx);
10551 }
10552
10553 cx.notify();
10554 }
10555
10556 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10557 self.start_git_blame(user_triggered, cx);
10558
10559 if ProjectSettings::get_global(cx)
10560 .git
10561 .inline_blame_delay()
10562 .is_some()
10563 {
10564 self.start_inline_blame_timer(cx);
10565 } else {
10566 self.show_git_blame_inline = true
10567 }
10568 }
10569
10570 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10571 self.blame.as_ref()
10572 }
10573
10574 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10575 self.show_git_blame_gutter && self.has_blame_entries(cx)
10576 }
10577
10578 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10579 self.show_git_blame_inline
10580 && self.focus_handle.is_focused(cx)
10581 && !self.newest_selection_head_on_empty_line(cx)
10582 && self.has_blame_entries(cx)
10583 }
10584
10585 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10586 self.blame()
10587 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10588 }
10589
10590 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10591 let cursor_anchor = self.selections.newest_anchor().head();
10592
10593 let snapshot = self.buffer.read(cx).snapshot(cx);
10594 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10595
10596 snapshot.line_len(buffer_row) == 0
10597 }
10598
10599 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10600 let (path, selection, repo) = maybe!({
10601 let project_handle = self.project.as_ref()?.clone();
10602 let project = project_handle.read(cx);
10603
10604 let selection = self.selections.newest::<Point>(cx);
10605 let selection_range = selection.range();
10606
10607 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10608 (buffer, selection_range.start.row..selection_range.end.row)
10609 } else {
10610 let buffer_ranges = self
10611 .buffer()
10612 .read(cx)
10613 .range_to_buffer_ranges(selection_range, cx);
10614
10615 let (buffer, range, _) = if selection.reversed {
10616 buffer_ranges.first()
10617 } else {
10618 buffer_ranges.last()
10619 }?;
10620
10621 let snapshot = buffer.read(cx).snapshot();
10622 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10623 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10624 (buffer.clone(), selection)
10625 };
10626
10627 let path = buffer
10628 .read(cx)
10629 .file()?
10630 .as_local()?
10631 .path()
10632 .to_str()?
10633 .to_string();
10634 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10635 Some((path, selection, repo))
10636 })
10637 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10638
10639 const REMOTE_NAME: &str = "origin";
10640 let origin_url = repo
10641 .remote_url(REMOTE_NAME)
10642 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10643 let sha = repo
10644 .head_sha()
10645 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10646
10647 let (provider, remote) =
10648 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10649 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10650
10651 Ok(provider.build_permalink(
10652 remote,
10653 BuildPermalinkParams {
10654 sha: &sha,
10655 path: &path,
10656 selection: Some(selection),
10657 },
10658 ))
10659 }
10660
10661 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10662 let permalink = self.get_permalink_to_line(cx);
10663
10664 match permalink {
10665 Ok(permalink) => {
10666 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10667 }
10668 Err(err) => {
10669 let message = format!("Failed to copy permalink: {err}");
10670
10671 Err::<(), anyhow::Error>(err).log_err();
10672
10673 if let Some(workspace) = self.workspace() {
10674 workspace.update(cx, |workspace, cx| {
10675 struct CopyPermalinkToLine;
10676
10677 workspace.show_toast(
10678 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10679 cx,
10680 )
10681 })
10682 }
10683 }
10684 }
10685 }
10686
10687 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10688 let permalink = self.get_permalink_to_line(cx);
10689
10690 match permalink {
10691 Ok(permalink) => {
10692 cx.open_url(permalink.as_ref());
10693 }
10694 Err(err) => {
10695 let message = format!("Failed to open permalink: {err}");
10696
10697 Err::<(), anyhow::Error>(err).log_err();
10698
10699 if let Some(workspace) = self.workspace() {
10700 workspace.update(cx, |workspace, cx| {
10701 struct OpenPermalinkToLine;
10702
10703 workspace.show_toast(
10704 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10705 cx,
10706 )
10707 })
10708 }
10709 }
10710 }
10711 }
10712
10713 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10714 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10715 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10716 pub fn highlight_rows<T: 'static>(
10717 &mut self,
10718 rows: RangeInclusive<Anchor>,
10719 color: Option<Hsla>,
10720 should_autoscroll: bool,
10721 cx: &mut ViewContext<Self>,
10722 ) {
10723 let snapshot = self.buffer().read(cx).snapshot(cx);
10724 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10725 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10726 highlight
10727 .range
10728 .start()
10729 .cmp(&rows.start(), &snapshot)
10730 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10731 });
10732 match (color, existing_highlight_index) {
10733 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10734 ix,
10735 RowHighlight {
10736 index: post_inc(&mut self.highlight_order),
10737 range: rows,
10738 should_autoscroll,
10739 color,
10740 },
10741 ),
10742 (None, Ok(i)) => {
10743 row_highlights.remove(i);
10744 }
10745 }
10746 }
10747
10748 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10749 pub fn clear_row_highlights<T: 'static>(&mut self) {
10750 self.highlighted_rows.remove(&TypeId::of::<T>());
10751 }
10752
10753 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10754 pub fn highlighted_rows<T: 'static>(
10755 &self,
10756 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10757 Some(
10758 self.highlighted_rows
10759 .get(&TypeId::of::<T>())?
10760 .iter()
10761 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10762 )
10763 }
10764
10765 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10766 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10767 /// Allows to ignore certain kinds of highlights.
10768 pub fn highlighted_display_rows(
10769 &mut self,
10770 cx: &mut WindowContext,
10771 ) -> BTreeMap<DisplayRow, Hsla> {
10772 let snapshot = self.snapshot(cx);
10773 let mut used_highlight_orders = HashMap::default();
10774 self.highlighted_rows
10775 .iter()
10776 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10777 .fold(
10778 BTreeMap::<DisplayRow, Hsla>::new(),
10779 |mut unique_rows, highlight| {
10780 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10781 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10782 for row in start_row.0..=end_row.0 {
10783 let used_index =
10784 used_highlight_orders.entry(row).or_insert(highlight.index);
10785 if highlight.index >= *used_index {
10786 *used_index = highlight.index;
10787 match highlight.color {
10788 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10789 None => unique_rows.remove(&DisplayRow(row)),
10790 };
10791 }
10792 }
10793 unique_rows
10794 },
10795 )
10796 }
10797
10798 pub fn highlighted_display_row_for_autoscroll(
10799 &self,
10800 snapshot: &DisplaySnapshot,
10801 ) -> Option<DisplayRow> {
10802 self.highlighted_rows
10803 .values()
10804 .flat_map(|highlighted_rows| highlighted_rows.iter())
10805 .filter_map(|highlight| {
10806 if highlight.color.is_none() || !highlight.should_autoscroll {
10807 return None;
10808 }
10809 Some(highlight.range.start().to_display_point(&snapshot).row())
10810 })
10811 .min()
10812 }
10813
10814 pub fn set_search_within_ranges(
10815 &mut self,
10816 ranges: &[Range<Anchor>],
10817 cx: &mut ViewContext<Self>,
10818 ) {
10819 self.highlight_background::<SearchWithinRange>(
10820 ranges,
10821 |colors| colors.editor_document_highlight_read_background,
10822 cx,
10823 )
10824 }
10825
10826 pub fn set_breadcrumb_header(&mut self, new_header: String) {
10827 self.breadcrumb_header = Some(new_header);
10828 }
10829
10830 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10831 self.clear_background_highlights::<SearchWithinRange>(cx);
10832 }
10833
10834 pub fn highlight_background<T: 'static>(
10835 &mut self,
10836 ranges: &[Range<Anchor>],
10837 color_fetcher: fn(&ThemeColors) -> Hsla,
10838 cx: &mut ViewContext<Self>,
10839 ) {
10840 self.background_highlights
10841 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10842 self.scrollbar_marker_state.dirty = true;
10843 cx.notify();
10844 }
10845
10846 pub fn clear_background_highlights<T: 'static>(
10847 &mut self,
10848 cx: &mut ViewContext<Self>,
10849 ) -> Option<BackgroundHighlight> {
10850 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10851 if !text_highlights.1.is_empty() {
10852 self.scrollbar_marker_state.dirty = true;
10853 cx.notify();
10854 }
10855 Some(text_highlights)
10856 }
10857
10858 pub fn highlight_gutter<T: 'static>(
10859 &mut self,
10860 ranges: &[Range<Anchor>],
10861 color_fetcher: fn(&AppContext) -> Hsla,
10862 cx: &mut ViewContext<Self>,
10863 ) {
10864 self.gutter_highlights
10865 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10866 cx.notify();
10867 }
10868
10869 pub fn clear_gutter_highlights<T: 'static>(
10870 &mut self,
10871 cx: &mut ViewContext<Self>,
10872 ) -> Option<GutterHighlight> {
10873 cx.notify();
10874 self.gutter_highlights.remove(&TypeId::of::<T>())
10875 }
10876
10877 #[cfg(feature = "test-support")]
10878 pub fn all_text_background_highlights(
10879 &mut self,
10880 cx: &mut ViewContext<Self>,
10881 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10882 let snapshot = self.snapshot(cx);
10883 let buffer = &snapshot.buffer_snapshot;
10884 let start = buffer.anchor_before(0);
10885 let end = buffer.anchor_after(buffer.len());
10886 let theme = cx.theme().colors();
10887 self.background_highlights_in_range(start..end, &snapshot, theme)
10888 }
10889
10890 #[cfg(feature = "test-support")]
10891 pub fn search_background_highlights(
10892 &mut self,
10893 cx: &mut ViewContext<Self>,
10894 ) -> Vec<Range<Point>> {
10895 let snapshot = self.buffer().read(cx).snapshot(cx);
10896
10897 let highlights = self
10898 .background_highlights
10899 .get(&TypeId::of::<items::BufferSearchHighlights>());
10900
10901 if let Some((_color, ranges)) = highlights {
10902 ranges
10903 .iter()
10904 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10905 .collect_vec()
10906 } else {
10907 vec![]
10908 }
10909 }
10910
10911 fn document_highlights_for_position<'a>(
10912 &'a self,
10913 position: Anchor,
10914 buffer: &'a MultiBufferSnapshot,
10915 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10916 let read_highlights = self
10917 .background_highlights
10918 .get(&TypeId::of::<DocumentHighlightRead>())
10919 .map(|h| &h.1);
10920 let write_highlights = self
10921 .background_highlights
10922 .get(&TypeId::of::<DocumentHighlightWrite>())
10923 .map(|h| &h.1);
10924 let left_position = position.bias_left(buffer);
10925 let right_position = position.bias_right(buffer);
10926 read_highlights
10927 .into_iter()
10928 .chain(write_highlights)
10929 .flat_map(move |ranges| {
10930 let start_ix = match ranges.binary_search_by(|probe| {
10931 let cmp = probe.end.cmp(&left_position, buffer);
10932 if cmp.is_ge() {
10933 Ordering::Greater
10934 } else {
10935 Ordering::Less
10936 }
10937 }) {
10938 Ok(i) | Err(i) => i,
10939 };
10940
10941 ranges[start_ix..]
10942 .iter()
10943 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10944 })
10945 }
10946
10947 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10948 self.background_highlights
10949 .get(&TypeId::of::<T>())
10950 .map_or(false, |(_, highlights)| !highlights.is_empty())
10951 }
10952
10953 pub fn background_highlights_in_range(
10954 &self,
10955 search_range: Range<Anchor>,
10956 display_snapshot: &DisplaySnapshot,
10957 theme: &ThemeColors,
10958 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10959 let mut results = Vec::new();
10960 for (color_fetcher, ranges) in self.background_highlights.values() {
10961 let color = color_fetcher(theme);
10962 let start_ix = match ranges.binary_search_by(|probe| {
10963 let cmp = probe
10964 .end
10965 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10966 if cmp.is_gt() {
10967 Ordering::Greater
10968 } else {
10969 Ordering::Less
10970 }
10971 }) {
10972 Ok(i) | Err(i) => i,
10973 };
10974 for range in &ranges[start_ix..] {
10975 if range
10976 .start
10977 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10978 .is_ge()
10979 {
10980 break;
10981 }
10982
10983 let start = range.start.to_display_point(&display_snapshot);
10984 let end = range.end.to_display_point(&display_snapshot);
10985 results.push((start..end, color))
10986 }
10987 }
10988 results
10989 }
10990
10991 pub fn background_highlight_row_ranges<T: 'static>(
10992 &self,
10993 search_range: Range<Anchor>,
10994 display_snapshot: &DisplaySnapshot,
10995 count: usize,
10996 ) -> Vec<RangeInclusive<DisplayPoint>> {
10997 let mut results = Vec::new();
10998 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10999 return vec![];
11000 };
11001
11002 let start_ix = match ranges.binary_search_by(|probe| {
11003 let cmp = probe
11004 .end
11005 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11006 if cmp.is_gt() {
11007 Ordering::Greater
11008 } else {
11009 Ordering::Less
11010 }
11011 }) {
11012 Ok(i) | Err(i) => i,
11013 };
11014 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11015 if let (Some(start_display), Some(end_display)) = (start, end) {
11016 results.push(
11017 start_display.to_display_point(display_snapshot)
11018 ..=end_display.to_display_point(display_snapshot),
11019 );
11020 }
11021 };
11022 let mut start_row: Option<Point> = None;
11023 let mut end_row: Option<Point> = None;
11024 if ranges.len() > count {
11025 return Vec::new();
11026 }
11027 for range in &ranges[start_ix..] {
11028 if range
11029 .start
11030 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11031 .is_ge()
11032 {
11033 break;
11034 }
11035 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11036 if let Some(current_row) = &end_row {
11037 if end.row == current_row.row {
11038 continue;
11039 }
11040 }
11041 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11042 if start_row.is_none() {
11043 assert_eq!(end_row, None);
11044 start_row = Some(start);
11045 end_row = Some(end);
11046 continue;
11047 }
11048 if let Some(current_end) = end_row.as_mut() {
11049 if start.row > current_end.row + 1 {
11050 push_region(start_row, end_row);
11051 start_row = Some(start);
11052 end_row = Some(end);
11053 } else {
11054 // Merge two hunks.
11055 *current_end = end;
11056 }
11057 } else {
11058 unreachable!();
11059 }
11060 }
11061 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11062 push_region(start_row, end_row);
11063 results
11064 }
11065
11066 pub fn gutter_highlights_in_range(
11067 &self,
11068 search_range: Range<Anchor>,
11069 display_snapshot: &DisplaySnapshot,
11070 cx: &AppContext,
11071 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11072 let mut results = Vec::new();
11073 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11074 let color = color_fetcher(cx);
11075 let start_ix = match ranges.binary_search_by(|probe| {
11076 let cmp = probe
11077 .end
11078 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11079 if cmp.is_gt() {
11080 Ordering::Greater
11081 } else {
11082 Ordering::Less
11083 }
11084 }) {
11085 Ok(i) | Err(i) => i,
11086 };
11087 for range in &ranges[start_ix..] {
11088 if range
11089 .start
11090 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11091 .is_ge()
11092 {
11093 break;
11094 }
11095
11096 let start = range.start.to_display_point(&display_snapshot);
11097 let end = range.end.to_display_point(&display_snapshot);
11098 results.push((start..end, color))
11099 }
11100 }
11101 results
11102 }
11103
11104 /// Get the text ranges corresponding to the redaction query
11105 pub fn redacted_ranges(
11106 &self,
11107 search_range: Range<Anchor>,
11108 display_snapshot: &DisplaySnapshot,
11109 cx: &WindowContext,
11110 ) -> Vec<Range<DisplayPoint>> {
11111 if self.redact_all {
11112 return vec![DisplayPoint::zero()..display_snapshot.max_point()];
11113 }
11114
11115 display_snapshot
11116 .buffer_snapshot
11117 .redacted_ranges(search_range, |file| {
11118 if let Some(file) = file {
11119 file.is_private()
11120 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
11121 } else {
11122 false
11123 }
11124 })
11125 .map(|range| {
11126 range.start.to_display_point(display_snapshot)
11127 ..range.end.to_display_point(display_snapshot)
11128 })
11129 .collect()
11130 }
11131
11132 pub fn highlight_text<T: 'static>(
11133 &mut self,
11134 ranges: Vec<Range<Anchor>>,
11135 style: HighlightStyle,
11136 cx: &mut ViewContext<Self>,
11137 ) {
11138 self.display_map.update(cx, |map, _| {
11139 map.highlight_text(TypeId::of::<T>(), ranges, style)
11140 });
11141 cx.notify();
11142 }
11143
11144 pub(crate) fn highlight_inlays<T: 'static>(
11145 &mut self,
11146 highlights: Vec<InlayHighlight>,
11147 style: HighlightStyle,
11148 cx: &mut ViewContext<Self>,
11149 ) {
11150 self.display_map.update(cx, |map, _| {
11151 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11152 });
11153 cx.notify();
11154 }
11155
11156 pub fn text_highlights<'a, T: 'static>(
11157 &'a self,
11158 cx: &'a AppContext,
11159 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11160 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11161 }
11162
11163 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11164 let cleared = self
11165 .display_map
11166 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11167 if cleared {
11168 cx.notify();
11169 }
11170 }
11171
11172 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11173 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11174 && self.focus_handle.is_focused(cx)
11175 }
11176
11177 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11178 self.show_cursor_when_unfocused = is_enabled;
11179 cx.notify();
11180 }
11181
11182 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11183 cx.notify();
11184 }
11185
11186 fn on_buffer_event(
11187 &mut self,
11188 multibuffer: Model<MultiBuffer>,
11189 event: &multi_buffer::Event,
11190 cx: &mut ViewContext<Self>,
11191 ) {
11192 match event {
11193 multi_buffer::Event::Edited {
11194 singleton_buffer_edited,
11195 } => {
11196 self.scrollbar_marker_state.dirty = true;
11197 self.active_indent_guides_state.dirty = true;
11198 self.refresh_active_diagnostics(cx);
11199 self.refresh_code_actions(cx);
11200 if self.has_active_inline_completion(cx) {
11201 self.update_visible_inline_completion(cx);
11202 }
11203 cx.emit(EditorEvent::BufferEdited);
11204 cx.emit(SearchEvent::MatchesInvalidated);
11205 if *singleton_buffer_edited {
11206 if let Some(project) = &self.project {
11207 let project = project.read(cx);
11208 #[allow(clippy::mutable_key_type)]
11209 let languages_affected = multibuffer
11210 .read(cx)
11211 .all_buffers()
11212 .into_iter()
11213 .filter_map(|buffer| {
11214 let buffer = buffer.read(cx);
11215 let language = buffer.language()?;
11216 if project.is_local()
11217 && project.language_servers_for_buffer(buffer, cx).count() == 0
11218 {
11219 None
11220 } else {
11221 Some(language)
11222 }
11223 })
11224 .cloned()
11225 .collect::<HashSet<_>>();
11226 if !languages_affected.is_empty() {
11227 self.refresh_inlay_hints(
11228 InlayHintRefreshReason::BufferEdited(languages_affected),
11229 cx,
11230 );
11231 }
11232 }
11233 }
11234
11235 let Some(project) = &self.project else { return };
11236 let telemetry = project.read(cx).client().telemetry().clone();
11237 refresh_linked_ranges(self, cx);
11238 telemetry.log_edit_event("editor");
11239 }
11240 multi_buffer::Event::ExcerptsAdded {
11241 buffer,
11242 predecessor,
11243 excerpts,
11244 } => {
11245 self.tasks_update_task = Some(self.refresh_runnables(cx));
11246 cx.emit(EditorEvent::ExcerptsAdded {
11247 buffer: buffer.clone(),
11248 predecessor: *predecessor,
11249 excerpts: excerpts.clone(),
11250 });
11251 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11252 }
11253 multi_buffer::Event::ExcerptsRemoved { ids } => {
11254 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11255 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11256 }
11257 multi_buffer::Event::ExcerptsEdited { ids } => {
11258 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11259 }
11260 multi_buffer::Event::ExcerptsExpanded { ids } => {
11261 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11262 }
11263 multi_buffer::Event::Reparsed(buffer_id) => {
11264 self.tasks_update_task = Some(self.refresh_runnables(cx));
11265
11266 cx.emit(EditorEvent::Reparsed(*buffer_id));
11267 }
11268 multi_buffer::Event::LanguageChanged(buffer_id) => {
11269 linked_editing_ranges::refresh_linked_ranges(self, cx);
11270 cx.emit(EditorEvent::Reparsed(*buffer_id));
11271 cx.notify();
11272 }
11273 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11274 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11275 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11276 cx.emit(EditorEvent::TitleChanged)
11277 }
11278 multi_buffer::Event::DiffBaseChanged => {
11279 self.scrollbar_marker_state.dirty = true;
11280 cx.emit(EditorEvent::DiffBaseChanged);
11281 cx.notify();
11282 }
11283 multi_buffer::Event::DiffUpdated { buffer } => {
11284 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11285 cx.notify();
11286 }
11287 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11288 multi_buffer::Event::DiagnosticsUpdated => {
11289 self.refresh_active_diagnostics(cx);
11290 self.scrollbar_marker_state.dirty = true;
11291 cx.notify();
11292 }
11293 _ => {}
11294 };
11295 }
11296
11297 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11298 cx.notify();
11299 }
11300
11301 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11302 self.tasks_update_task = Some(self.refresh_runnables(cx));
11303 self.refresh_inline_completion(true, cx);
11304 self.refresh_inlay_hints(
11305 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11306 self.selections.newest_anchor().head(),
11307 &self.buffer.read(cx).snapshot(cx),
11308 cx,
11309 )),
11310 cx,
11311 );
11312 let editor_settings = EditorSettings::get_global(cx);
11313 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11314 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11315
11316 let project_settings = ProjectSettings::get_global(cx);
11317 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
11318
11319 if self.mode == EditorMode::Full {
11320 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
11321 if self.git_blame_inline_enabled != inline_blame_enabled {
11322 self.toggle_git_blame_inline_internal(false, cx);
11323 }
11324 }
11325
11326 cx.notify();
11327 }
11328
11329 pub fn set_searchable(&mut self, searchable: bool) {
11330 self.searchable = searchable;
11331 }
11332
11333 pub fn searchable(&self) -> bool {
11334 self.searchable
11335 }
11336
11337 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11338 self.open_excerpts_common(true, cx)
11339 }
11340
11341 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11342 self.open_excerpts_common(false, cx)
11343 }
11344
11345 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11346 let buffer = self.buffer.read(cx);
11347 if buffer.is_singleton() {
11348 cx.propagate();
11349 return;
11350 }
11351
11352 let Some(workspace) = self.workspace() else {
11353 cx.propagate();
11354 return;
11355 };
11356
11357 let mut new_selections_by_buffer = HashMap::default();
11358 for selection in self.selections.all::<usize>(cx) {
11359 for (buffer, mut range, _) in
11360 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11361 {
11362 if selection.reversed {
11363 mem::swap(&mut range.start, &mut range.end);
11364 }
11365 new_selections_by_buffer
11366 .entry(buffer)
11367 .or_insert(Vec::new())
11368 .push(range)
11369 }
11370 }
11371
11372 // We defer the pane interaction because we ourselves are a workspace item
11373 // and activating a new item causes the pane to call a method on us reentrantly,
11374 // which panics if we're on the stack.
11375 cx.window_context().defer(move |cx| {
11376 workspace.update(cx, |workspace, cx| {
11377 let pane = if split {
11378 workspace.adjacent_pane(cx)
11379 } else {
11380 workspace.active_pane().clone()
11381 };
11382
11383 for (buffer, ranges) in new_selections_by_buffer {
11384 let editor =
11385 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
11386 editor.update(cx, |editor, cx| {
11387 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11388 s.select_ranges(ranges);
11389 });
11390 });
11391 }
11392 })
11393 });
11394 }
11395
11396 fn jump(
11397 &mut self,
11398 path: ProjectPath,
11399 position: Point,
11400 anchor: language::Anchor,
11401 offset_from_top: u32,
11402 cx: &mut ViewContext<Self>,
11403 ) {
11404 let workspace = self.workspace();
11405 cx.spawn(|_, mut cx| async move {
11406 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11407 let editor = workspace.update(&mut cx, |workspace, cx| {
11408 // Reset the preview item id before opening the new item
11409 workspace.active_pane().update(cx, |pane, cx| {
11410 pane.set_preview_item_id(None, cx);
11411 });
11412 workspace.open_path_preview(path, None, true, true, cx)
11413 })?;
11414 let editor = editor
11415 .await?
11416 .downcast::<Editor>()
11417 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11418 .downgrade();
11419 editor.update(&mut cx, |editor, cx| {
11420 let buffer = editor
11421 .buffer()
11422 .read(cx)
11423 .as_singleton()
11424 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11425 let buffer = buffer.read(cx);
11426 let cursor = if buffer.can_resolve(&anchor) {
11427 language::ToPoint::to_point(&anchor, buffer)
11428 } else {
11429 buffer.clip_point(position, Bias::Left)
11430 };
11431
11432 let nav_history = editor.nav_history.take();
11433 editor.change_selections(
11434 Some(Autoscroll::top_relative(offset_from_top as usize)),
11435 cx,
11436 |s| {
11437 s.select_ranges([cursor..cursor]);
11438 },
11439 );
11440 editor.nav_history = nav_history;
11441
11442 anyhow::Ok(())
11443 })??;
11444
11445 anyhow::Ok(())
11446 })
11447 .detach_and_log_err(cx);
11448 }
11449
11450 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11451 let snapshot = self.buffer.read(cx).read(cx);
11452 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11453 Some(
11454 ranges
11455 .iter()
11456 .map(move |range| {
11457 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11458 })
11459 .collect(),
11460 )
11461 }
11462
11463 fn selection_replacement_ranges(
11464 &self,
11465 range: Range<OffsetUtf16>,
11466 cx: &AppContext,
11467 ) -> Vec<Range<OffsetUtf16>> {
11468 let selections = self.selections.all::<OffsetUtf16>(cx);
11469 let newest_selection = selections
11470 .iter()
11471 .max_by_key(|selection| selection.id)
11472 .unwrap();
11473 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11474 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11475 let snapshot = self.buffer.read(cx).read(cx);
11476 selections
11477 .into_iter()
11478 .map(|mut selection| {
11479 selection.start.0 =
11480 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11481 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11482 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11483 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11484 })
11485 .collect()
11486 }
11487
11488 fn report_editor_event(
11489 &self,
11490 operation: &'static str,
11491 file_extension: Option<String>,
11492 cx: &AppContext,
11493 ) {
11494 if cfg!(any(test, feature = "test-support")) {
11495 return;
11496 }
11497
11498 let Some(project) = &self.project else { return };
11499
11500 // If None, we are in a file without an extension
11501 let file = self
11502 .buffer
11503 .read(cx)
11504 .as_singleton()
11505 .and_then(|b| b.read(cx).file());
11506 let file_extension = file_extension.or(file
11507 .as_ref()
11508 .and_then(|file| Path::new(file.file_name(cx)).extension())
11509 .and_then(|e| e.to_str())
11510 .map(|a| a.to_string()));
11511
11512 let vim_mode = cx
11513 .global::<SettingsStore>()
11514 .raw_user_settings()
11515 .get("vim_mode")
11516 == Some(&serde_json::Value::Bool(true));
11517
11518 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11519 == language::language_settings::InlineCompletionProvider::Copilot;
11520 let copilot_enabled_for_language = self
11521 .buffer
11522 .read(cx)
11523 .settings_at(0, cx)
11524 .show_inline_completions;
11525
11526 let telemetry = project.read(cx).client().telemetry().clone();
11527 telemetry.report_editor_event(
11528 file_extension,
11529 vim_mode,
11530 operation,
11531 copilot_enabled,
11532 copilot_enabled_for_language,
11533 )
11534 }
11535
11536 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11537 /// with each line being an array of {text, highlight} objects.
11538 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11539 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11540 return;
11541 };
11542
11543 #[derive(Serialize)]
11544 struct Chunk<'a> {
11545 text: String,
11546 highlight: Option<&'a str>,
11547 }
11548
11549 let snapshot = buffer.read(cx).snapshot();
11550 let range = self
11551 .selected_text_range(cx)
11552 .and_then(|selected_range| {
11553 if selected_range.is_empty() {
11554 None
11555 } else {
11556 Some(selected_range)
11557 }
11558 })
11559 .unwrap_or_else(|| 0..snapshot.len());
11560
11561 let chunks = snapshot.chunks(range, true);
11562 let mut lines = Vec::new();
11563 let mut line: VecDeque<Chunk> = VecDeque::new();
11564
11565 let Some(style) = self.style.as_ref() else {
11566 return;
11567 };
11568
11569 for chunk in chunks {
11570 let highlight = chunk
11571 .syntax_highlight_id
11572 .and_then(|id| id.name(&style.syntax));
11573 let mut chunk_lines = chunk.text.split('\n').peekable();
11574 while let Some(text) = chunk_lines.next() {
11575 let mut merged_with_last_token = false;
11576 if let Some(last_token) = line.back_mut() {
11577 if last_token.highlight == highlight {
11578 last_token.text.push_str(text);
11579 merged_with_last_token = true;
11580 }
11581 }
11582
11583 if !merged_with_last_token {
11584 line.push_back(Chunk {
11585 text: text.into(),
11586 highlight,
11587 });
11588 }
11589
11590 if chunk_lines.peek().is_some() {
11591 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11592 line.pop_front();
11593 }
11594 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11595 line.pop_back();
11596 }
11597
11598 lines.push(mem::take(&mut line));
11599 }
11600 }
11601 }
11602
11603 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11604 return;
11605 };
11606 cx.write_to_clipboard(ClipboardItem::new(lines));
11607 }
11608
11609 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11610 &self.inlay_hint_cache
11611 }
11612
11613 pub fn replay_insert_event(
11614 &mut self,
11615 text: &str,
11616 relative_utf16_range: Option<Range<isize>>,
11617 cx: &mut ViewContext<Self>,
11618 ) {
11619 if !self.input_enabled {
11620 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11621 return;
11622 }
11623 if let Some(relative_utf16_range) = relative_utf16_range {
11624 let selections = self.selections.all::<OffsetUtf16>(cx);
11625 self.change_selections(None, cx, |s| {
11626 let new_ranges = selections.into_iter().map(|range| {
11627 let start = OffsetUtf16(
11628 range
11629 .head()
11630 .0
11631 .saturating_add_signed(relative_utf16_range.start),
11632 );
11633 let end = OffsetUtf16(
11634 range
11635 .head()
11636 .0
11637 .saturating_add_signed(relative_utf16_range.end),
11638 );
11639 start..end
11640 });
11641 s.select_ranges(new_ranges);
11642 });
11643 }
11644
11645 self.handle_input(text, cx);
11646 }
11647
11648 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11649 let Some(project) = self.project.as_ref() else {
11650 return false;
11651 };
11652 let project = project.read(cx);
11653
11654 let mut supports = false;
11655 self.buffer().read(cx).for_each_buffer(|buffer| {
11656 if !supports {
11657 supports = project
11658 .language_servers_for_buffer(buffer.read(cx), cx)
11659 .any(
11660 |(_, server)| match server.capabilities().inlay_hint_provider {
11661 Some(lsp::OneOf::Left(enabled)) => enabled,
11662 Some(lsp::OneOf::Right(_)) => true,
11663 None => false,
11664 },
11665 )
11666 }
11667 });
11668 supports
11669 }
11670
11671 pub fn focus(&self, cx: &mut WindowContext) {
11672 cx.focus(&self.focus_handle)
11673 }
11674
11675 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11676 self.focus_handle.is_focused(cx)
11677 }
11678
11679 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11680 cx.emit(EditorEvent::Focused);
11681
11682 if let Some(descendant) = self
11683 .last_focused_descendant
11684 .take()
11685 .and_then(|descendant| descendant.upgrade())
11686 {
11687 cx.focus(&descendant);
11688 } else {
11689 if let Some(blame) = self.blame.as_ref() {
11690 blame.update(cx, GitBlame::focus)
11691 }
11692
11693 self.blink_manager.update(cx, BlinkManager::enable);
11694 self.show_cursor_names(cx);
11695 self.buffer.update(cx, |buffer, cx| {
11696 buffer.finalize_last_transaction(cx);
11697 if self.leader_peer_id.is_none() {
11698 buffer.set_active_selections(
11699 &self.selections.disjoint_anchors(),
11700 self.selections.line_mode,
11701 self.cursor_shape,
11702 cx,
11703 );
11704 }
11705 });
11706 }
11707 }
11708
11709 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
11710 cx.emit(EditorEvent::FocusedIn)
11711 }
11712
11713 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11714 if event.blurred != self.focus_handle {
11715 self.last_focused_descendant = Some(event.blurred);
11716 }
11717 }
11718
11719 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11720 self.blink_manager.update(cx, BlinkManager::disable);
11721 self.buffer
11722 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11723
11724 if let Some(blame) = self.blame.as_ref() {
11725 blame.update(cx, GitBlame::blur)
11726 }
11727 if !self.hover_state.focused(cx) {
11728 hide_hover(self, cx);
11729 }
11730
11731 self.hide_context_menu(cx);
11732 cx.emit(EditorEvent::Blurred);
11733 cx.notify();
11734 }
11735
11736 pub fn register_action<A: Action>(
11737 &mut self,
11738 listener: impl Fn(&A, &mut WindowContext) + 'static,
11739 ) -> Subscription {
11740 let id = self.next_editor_action_id.post_inc();
11741 let listener = Arc::new(listener);
11742 self.editor_actions.borrow_mut().insert(
11743 id,
11744 Box::new(move |cx| {
11745 let _view = cx.view().clone();
11746 let cx = cx.window_context();
11747 let listener = listener.clone();
11748 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11749 let action = action.downcast_ref().unwrap();
11750 if phase == DispatchPhase::Bubble {
11751 listener(action, cx)
11752 }
11753 })
11754 }),
11755 );
11756
11757 let editor_actions = self.editor_actions.clone();
11758 Subscription::new(move || {
11759 editor_actions.borrow_mut().remove(&id);
11760 })
11761 }
11762
11763 pub fn file_header_size(&self) -> u8 {
11764 self.file_header_size
11765 }
11766
11767 pub fn revert(
11768 &mut self,
11769 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
11770 cx: &mut ViewContext<Self>,
11771 ) {
11772 self.buffer().update(cx, |multi_buffer, cx| {
11773 for (buffer_id, changes) in revert_changes {
11774 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
11775 buffer.update(cx, |buffer, cx| {
11776 buffer.edit(
11777 changes.into_iter().map(|(range, text)| {
11778 (range, text.to_string().map(Arc::<str>::from))
11779 }),
11780 None,
11781 cx,
11782 );
11783 });
11784 }
11785 }
11786 });
11787 self.change_selections(None, cx, |selections| selections.refresh());
11788 }
11789
11790 pub fn to_pixel_point(
11791 &mut self,
11792 source: multi_buffer::Anchor,
11793 editor_snapshot: &EditorSnapshot,
11794 cx: &mut ViewContext<Self>,
11795 ) -> Option<gpui::Point<Pixels>> {
11796 let text_layout_details = self.text_layout_details(cx);
11797 let line_height = text_layout_details
11798 .editor_style
11799 .text
11800 .line_height_in_pixels(cx.rem_size());
11801 let source_point = source.to_display_point(editor_snapshot);
11802 let first_visible_line = text_layout_details
11803 .scroll_anchor
11804 .anchor
11805 .to_display_point(editor_snapshot);
11806 if first_visible_line > source_point {
11807 return None;
11808 }
11809 let source_x = editor_snapshot.x_for_display_point(source_point, &text_layout_details);
11810 let source_y = line_height
11811 * ((source_point.row() - first_visible_line.row()).0 as f32
11812 - text_layout_details.scroll_anchor.offset.y);
11813 Some(gpui::Point::new(source_x, source_y))
11814 }
11815
11816 pub fn display_to_pixel_point(
11817 &mut self,
11818 source: DisplayPoint,
11819 editor_snapshot: &EditorSnapshot,
11820 cx: &mut ViewContext<Self>,
11821 ) -> Option<gpui::Point<Pixels>> {
11822 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
11823 let text_layout_details = self.text_layout_details(cx);
11824 let first_visible_line = text_layout_details
11825 .scroll_anchor
11826 .anchor
11827 .to_display_point(editor_snapshot);
11828 if first_visible_line > source {
11829 return None;
11830 }
11831 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
11832 let source_y = line_height * (source.row() - first_visible_line.row()).0 as f32;
11833 Some(gpui::Point::new(source_x, source_y))
11834 }
11835
11836 fn gutter_bounds(&self) -> Option<Bounds<Pixels>> {
11837 let bounds = self.last_bounds?;
11838 Some(element::gutter_bounds(bounds, self.gutter_dimensions))
11839 }
11840}
11841
11842fn hunks_for_selections(
11843 multi_buffer_snapshot: &MultiBufferSnapshot,
11844 selections: &[Selection<Anchor>],
11845) -> Vec<DiffHunk<MultiBufferRow>> {
11846 let buffer_rows_for_selections = selections.iter().map(|selection| {
11847 let head = selection.head();
11848 let tail = selection.tail();
11849 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11850 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11851 if start > end {
11852 end..start
11853 } else {
11854 start..end
11855 }
11856 });
11857
11858 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
11859}
11860
11861pub fn hunks_for_rows(
11862 rows: impl Iterator<Item = Range<MultiBufferRow>>,
11863 multi_buffer_snapshot: &MultiBufferSnapshot,
11864) -> Vec<DiffHunk<MultiBufferRow>> {
11865 let mut hunks = Vec::new();
11866 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11867 HashMap::default();
11868 for selected_multi_buffer_rows in rows {
11869 let query_rows =
11870 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11871 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11872 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11873 // when the caret is just above or just below the deleted hunk.
11874 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11875 let related_to_selection = if allow_adjacent {
11876 hunk.associated_range.overlaps(&query_rows)
11877 || hunk.associated_range.start == query_rows.end
11878 || hunk.associated_range.end == query_rows.start
11879 } else {
11880 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11881 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11882 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11883 || selected_multi_buffer_rows.end == hunk.associated_range.start
11884 };
11885 if related_to_selection {
11886 if !processed_buffer_rows
11887 .entry(hunk.buffer_id)
11888 .or_default()
11889 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11890 {
11891 continue;
11892 }
11893 hunks.push(hunk);
11894 }
11895 }
11896 }
11897
11898 hunks
11899}
11900
11901pub trait CollaborationHub {
11902 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11903 fn user_participant_indices<'a>(
11904 &self,
11905 cx: &'a AppContext,
11906 ) -> &'a HashMap<u64, ParticipantIndex>;
11907 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11908}
11909
11910impl CollaborationHub for Model<Project> {
11911 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11912 self.read(cx).collaborators()
11913 }
11914
11915 fn user_participant_indices<'a>(
11916 &self,
11917 cx: &'a AppContext,
11918 ) -> &'a HashMap<u64, ParticipantIndex> {
11919 self.read(cx).user_store().read(cx).participant_indices()
11920 }
11921
11922 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11923 let this = self.read(cx);
11924 let user_ids = this.collaborators().values().map(|c| c.user_id);
11925 this.user_store().read_with(cx, |user_store, cx| {
11926 user_store.participant_names(user_ids, cx)
11927 })
11928 }
11929}
11930
11931pub trait CompletionProvider {
11932 fn completions(
11933 &self,
11934 buffer: &Model<Buffer>,
11935 buffer_position: text::Anchor,
11936 trigger: CompletionContext,
11937 cx: &mut ViewContext<Editor>,
11938 ) -> Task<Result<Vec<Completion>>>;
11939
11940 fn resolve_completions(
11941 &self,
11942 buffer: Model<Buffer>,
11943 completion_indices: Vec<usize>,
11944 completions: Arc<RwLock<Box<[Completion]>>>,
11945 cx: &mut ViewContext<Editor>,
11946 ) -> Task<Result<bool>>;
11947
11948 fn apply_additional_edits_for_completion(
11949 &self,
11950 buffer: Model<Buffer>,
11951 completion: Completion,
11952 push_to_history: bool,
11953 cx: &mut ViewContext<Editor>,
11954 ) -> Task<Result<Option<language::Transaction>>>;
11955
11956 fn is_completion_trigger(
11957 &self,
11958 buffer: &Model<Buffer>,
11959 position: language::Anchor,
11960 text: &str,
11961 trigger_in_words: bool,
11962 cx: &mut ViewContext<Editor>,
11963 ) -> bool;
11964}
11965
11966fn snippet_completions(
11967 project: &Project,
11968 buffer: &Model<Buffer>,
11969 buffer_position: text::Anchor,
11970 cx: &mut AppContext,
11971) -> Vec<Completion> {
11972 let language = buffer.read(cx).language_at(buffer_position);
11973 let language_name = language.as_ref().map(|language| language.lsp_id());
11974 let snippet_store = project.snippets().read(cx);
11975 let snippets = snippet_store.snippets_for(language_name, cx);
11976
11977 if snippets.is_empty() {
11978 return vec![];
11979 }
11980 let snapshot = buffer.read(cx).text_snapshot();
11981 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
11982
11983 let mut lines = chunks.lines();
11984 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
11985 return vec![];
11986 };
11987
11988 let scope = language.map(|language| language.default_scope());
11989 let mut last_word = line_at
11990 .chars()
11991 .rev()
11992 .take_while(|c| char_kind(&scope, *c) == CharKind::Word)
11993 .collect::<String>();
11994 last_word = last_word.chars().rev().collect();
11995 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
11996 let to_lsp = |point: &text::Anchor| {
11997 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
11998 point_to_lsp(end)
11999 };
12000 let lsp_end = to_lsp(&buffer_position);
12001 snippets
12002 .into_iter()
12003 .filter_map(|snippet| {
12004 let matching_prefix = snippet
12005 .prefix
12006 .iter()
12007 .find(|prefix| prefix.starts_with(&last_word))?;
12008 let start = as_offset - last_word.len();
12009 let start = snapshot.anchor_before(start);
12010 let range = start..buffer_position;
12011 let lsp_start = to_lsp(&start);
12012 let lsp_range = lsp::Range {
12013 start: lsp_start,
12014 end: lsp_end,
12015 };
12016 Some(Completion {
12017 old_range: range,
12018 new_text: snippet.body.clone(),
12019 label: CodeLabel {
12020 text: matching_prefix.clone(),
12021 runs: vec![],
12022 filter_range: 0..matching_prefix.len(),
12023 },
12024 server_id: LanguageServerId(usize::MAX),
12025 documentation: snippet
12026 .description
12027 .clone()
12028 .map(|description| Documentation::SingleLine(description)),
12029 lsp_completion: lsp::CompletionItem {
12030 label: snippet.prefix.first().unwrap().clone(),
12031 kind: Some(CompletionItemKind::SNIPPET),
12032 label_details: snippet.description.as_ref().map(|description| {
12033 lsp::CompletionItemLabelDetails {
12034 detail: Some(description.clone()),
12035 description: None,
12036 }
12037 }),
12038 insert_text_format: Some(InsertTextFormat::SNIPPET),
12039 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
12040 lsp::InsertReplaceEdit {
12041 new_text: snippet.body.clone(),
12042 insert: lsp_range,
12043 replace: lsp_range,
12044 },
12045 )),
12046 filter_text: Some(snippet.body.clone()),
12047 sort_text: Some(char::MAX.to_string()),
12048 ..Default::default()
12049 },
12050 confirm: None,
12051 show_new_completions_on_confirm: false,
12052 })
12053 })
12054 .collect()
12055}
12056
12057impl CompletionProvider for Model<Project> {
12058 fn completions(
12059 &self,
12060 buffer: &Model<Buffer>,
12061 buffer_position: text::Anchor,
12062 options: CompletionContext,
12063 cx: &mut ViewContext<Editor>,
12064 ) -> Task<Result<Vec<Completion>>> {
12065 self.update(cx, |project, cx| {
12066 let snippets = snippet_completions(project, buffer, buffer_position, cx);
12067 let project_completions = project.completions(&buffer, buffer_position, options, cx);
12068 cx.background_executor().spawn(async move {
12069 let mut completions = project_completions.await?;
12070 //let snippets = snippets.into_iter().;
12071 completions.extend(snippets);
12072 Ok(completions)
12073 })
12074 })
12075 }
12076
12077 fn resolve_completions(
12078 &self,
12079 buffer: Model<Buffer>,
12080 completion_indices: Vec<usize>,
12081 completions: Arc<RwLock<Box<[Completion]>>>,
12082 cx: &mut ViewContext<Editor>,
12083 ) -> Task<Result<bool>> {
12084 self.update(cx, |project, cx| {
12085 project.resolve_completions(buffer, completion_indices, completions, cx)
12086 })
12087 }
12088
12089 fn apply_additional_edits_for_completion(
12090 &self,
12091 buffer: Model<Buffer>,
12092 completion: Completion,
12093 push_to_history: bool,
12094 cx: &mut ViewContext<Editor>,
12095 ) -> Task<Result<Option<language::Transaction>>> {
12096 self.update(cx, |project, cx| {
12097 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
12098 })
12099 }
12100
12101 fn is_completion_trigger(
12102 &self,
12103 buffer: &Model<Buffer>,
12104 position: language::Anchor,
12105 text: &str,
12106 trigger_in_words: bool,
12107 cx: &mut ViewContext<Editor>,
12108 ) -> bool {
12109 if !EditorSettings::get_global(cx).show_completions_on_input {
12110 return false;
12111 }
12112
12113 let mut chars = text.chars();
12114 let char = if let Some(char) = chars.next() {
12115 char
12116 } else {
12117 return false;
12118 };
12119 if chars.next().is_some() {
12120 return false;
12121 }
12122
12123 let buffer = buffer.read(cx);
12124 let scope = buffer.snapshot().language_scope_at(position);
12125 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
12126 return true;
12127 }
12128
12129 buffer
12130 .completion_triggers()
12131 .iter()
12132 .any(|string| string == text)
12133 }
12134}
12135
12136fn inlay_hint_settings(
12137 location: Anchor,
12138 snapshot: &MultiBufferSnapshot,
12139 cx: &mut ViewContext<'_, Editor>,
12140) -> InlayHintSettings {
12141 let file = snapshot.file_at(location);
12142 let language = snapshot.language_at(location);
12143 let settings = all_language_settings(file, cx);
12144 settings
12145 .language(language.map(|l| l.name()).as_deref())
12146 .inlay_hints
12147}
12148
12149fn consume_contiguous_rows(
12150 contiguous_row_selections: &mut Vec<Selection<Point>>,
12151 selection: &Selection<Point>,
12152 display_map: &DisplaySnapshot,
12153 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
12154) -> (MultiBufferRow, MultiBufferRow) {
12155 contiguous_row_selections.push(selection.clone());
12156 let start_row = MultiBufferRow(selection.start.row);
12157 let mut end_row = ending_row(selection, display_map);
12158
12159 while let Some(next_selection) = selections.peek() {
12160 if next_selection.start.row <= end_row.0 {
12161 end_row = ending_row(next_selection, display_map);
12162 contiguous_row_selections.push(selections.next().unwrap().clone());
12163 } else {
12164 break;
12165 }
12166 }
12167 (start_row, end_row)
12168}
12169
12170fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
12171 if next_selection.end.column > 0 || next_selection.is_empty() {
12172 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
12173 } else {
12174 MultiBufferRow(next_selection.end.row)
12175 }
12176}
12177
12178impl EditorSnapshot {
12179 pub fn remote_selections_in_range<'a>(
12180 &'a self,
12181 range: &'a Range<Anchor>,
12182 collaboration_hub: &dyn CollaborationHub,
12183 cx: &'a AppContext,
12184 ) -> impl 'a + Iterator<Item = RemoteSelection> {
12185 let participant_names = collaboration_hub.user_names(cx);
12186 let participant_indices = collaboration_hub.user_participant_indices(cx);
12187 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
12188 let collaborators_by_replica_id = collaborators_by_peer_id
12189 .iter()
12190 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
12191 .collect::<HashMap<_, _>>();
12192 self.buffer_snapshot
12193 .selections_in_range(range, false)
12194 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
12195 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
12196 let participant_index = participant_indices.get(&collaborator.user_id).copied();
12197 let user_name = participant_names.get(&collaborator.user_id).cloned();
12198 Some(RemoteSelection {
12199 replica_id,
12200 selection,
12201 cursor_shape,
12202 line_mode,
12203 participant_index,
12204 peer_id: collaborator.peer_id,
12205 user_name,
12206 })
12207 })
12208 }
12209
12210 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12211 self.display_snapshot.buffer_snapshot.language_at(position)
12212 }
12213
12214 pub fn is_focused(&self) -> bool {
12215 self.is_focused
12216 }
12217
12218 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12219 self.placeholder_text.as_ref()
12220 }
12221
12222 pub fn scroll_position(&self) -> gpui::Point<f32> {
12223 self.scroll_anchor.scroll_position(&self.display_snapshot)
12224 }
12225
12226 fn gutter_dimensions(
12227 &self,
12228 font_id: FontId,
12229 font_size: Pixels,
12230 em_width: Pixels,
12231 max_line_number_width: Pixels,
12232 cx: &AppContext,
12233 ) -> GutterDimensions {
12234 if !self.show_gutter {
12235 return GutterDimensions::default();
12236 }
12237 let descent = cx.text_system().descent(font_id, font_size);
12238
12239 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12240 matches!(
12241 ProjectSettings::get_global(cx).git.git_gutter,
12242 Some(GitGutterSetting::TrackedFiles)
12243 )
12244 });
12245 let gutter_settings = EditorSettings::get_global(cx).gutter;
12246 let show_line_numbers = self
12247 .show_line_numbers
12248 .unwrap_or(gutter_settings.line_numbers);
12249 let line_gutter_width = if show_line_numbers {
12250 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12251 let min_width_for_number_on_gutter = em_width * 4.0;
12252 max_line_number_width.max(min_width_for_number_on_gutter)
12253 } else {
12254 0.0.into()
12255 };
12256
12257 let show_code_actions = self
12258 .show_code_actions
12259 .unwrap_or(gutter_settings.code_actions);
12260
12261 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12262
12263 let git_blame_entries_width = self
12264 .render_git_blame_gutter
12265 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12266
12267 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12268 left_padding += if show_code_actions || show_runnables {
12269 em_width * 3.0
12270 } else if show_git_gutter && show_line_numbers {
12271 em_width * 2.0
12272 } else if show_git_gutter || show_line_numbers {
12273 em_width
12274 } else {
12275 px(0.)
12276 };
12277
12278 let right_padding = if gutter_settings.folds && show_line_numbers {
12279 em_width * 4.0
12280 } else if gutter_settings.folds {
12281 em_width * 3.0
12282 } else if show_line_numbers {
12283 em_width
12284 } else {
12285 px(0.)
12286 };
12287
12288 GutterDimensions {
12289 left_padding,
12290 right_padding,
12291 width: line_gutter_width + left_padding + right_padding,
12292 margin: -descent,
12293 git_blame_entries_width,
12294 }
12295 }
12296
12297 pub fn render_fold_toggle(
12298 &self,
12299 buffer_row: MultiBufferRow,
12300 row_contains_cursor: bool,
12301 editor: View<Editor>,
12302 cx: &mut WindowContext,
12303 ) -> Option<AnyElement> {
12304 let folded = self.is_line_folded(buffer_row);
12305
12306 if let Some(crease) = self
12307 .crease_snapshot
12308 .query_row(buffer_row, &self.buffer_snapshot)
12309 {
12310 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12311 if folded {
12312 editor.update(cx, |editor, cx| {
12313 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12314 });
12315 } else {
12316 editor.update(cx, |editor, cx| {
12317 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12318 });
12319 }
12320 });
12321
12322 Some((crease.render_toggle)(
12323 buffer_row,
12324 folded,
12325 toggle_callback,
12326 cx,
12327 ))
12328 } else if folded
12329 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12330 {
12331 Some(
12332 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12333 .selected(folded)
12334 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12335 if folded {
12336 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12337 } else {
12338 this.fold_at(&FoldAt { buffer_row }, cx);
12339 }
12340 }))
12341 .into_any_element(),
12342 )
12343 } else {
12344 None
12345 }
12346 }
12347
12348 pub fn render_crease_trailer(
12349 &self,
12350 buffer_row: MultiBufferRow,
12351 cx: &mut WindowContext,
12352 ) -> Option<AnyElement> {
12353 let folded = self.is_line_folded(buffer_row);
12354 let crease = self
12355 .crease_snapshot
12356 .query_row(buffer_row, &self.buffer_snapshot)?;
12357 Some((crease.render_trailer)(buffer_row, folded, cx))
12358 }
12359}
12360
12361impl Deref for EditorSnapshot {
12362 type Target = DisplaySnapshot;
12363
12364 fn deref(&self) -> &Self::Target {
12365 &self.display_snapshot
12366 }
12367}
12368
12369#[derive(Clone, Debug, PartialEq, Eq)]
12370pub enum EditorEvent {
12371 InputIgnored {
12372 text: Arc<str>,
12373 },
12374 InputHandled {
12375 utf16_range_to_replace: Option<Range<isize>>,
12376 text: Arc<str>,
12377 },
12378 ExcerptsAdded {
12379 buffer: Model<Buffer>,
12380 predecessor: ExcerptId,
12381 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12382 },
12383 ExcerptsRemoved {
12384 ids: Vec<ExcerptId>,
12385 },
12386 ExcerptsEdited {
12387 ids: Vec<ExcerptId>,
12388 },
12389 ExcerptsExpanded {
12390 ids: Vec<ExcerptId>,
12391 },
12392 BufferEdited,
12393 Edited {
12394 transaction_id: clock::Lamport,
12395 },
12396 Reparsed(BufferId),
12397 Focused,
12398 FocusedIn,
12399 Blurred,
12400 DirtyChanged,
12401 Saved,
12402 TitleChanged,
12403 DiffBaseChanged,
12404 SelectionsChanged {
12405 local: bool,
12406 },
12407 ScrollPositionChanged {
12408 local: bool,
12409 autoscroll: bool,
12410 },
12411 Closed,
12412 TransactionUndone {
12413 transaction_id: clock::Lamport,
12414 },
12415 TransactionBegun {
12416 transaction_id: clock::Lamport,
12417 },
12418}
12419
12420impl EventEmitter<EditorEvent> for Editor {}
12421
12422impl FocusableView for Editor {
12423 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12424 self.focus_handle.clone()
12425 }
12426}
12427
12428impl Render for Editor {
12429 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12430 let settings = ThemeSettings::get_global(cx);
12431
12432 let text_style = match self.mode {
12433 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12434 color: cx.theme().colors().editor_foreground,
12435 font_family: settings.ui_font.family.clone(),
12436 font_features: settings.ui_font.features.clone(),
12437 font_size: rems(0.875).into(),
12438 font_weight: settings.ui_font.weight,
12439 line_height: relative(settings.buffer_line_height.value()),
12440 ..Default::default()
12441 },
12442 EditorMode::Full => TextStyle {
12443 color: cx.theme().colors().editor_foreground,
12444 font_family: settings.buffer_font.family.clone(),
12445 font_features: settings.buffer_font.features.clone(),
12446 font_size: settings.buffer_font_size(cx).into(),
12447 font_weight: settings.buffer_font.weight,
12448 line_height: relative(settings.buffer_line_height.value()),
12449 ..Default::default()
12450 },
12451 };
12452
12453 let background = match self.mode {
12454 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12455 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12456 EditorMode::Full => cx.theme().colors().editor_background,
12457 };
12458
12459 EditorElement::new(
12460 cx.view(),
12461 EditorStyle {
12462 background,
12463 local_player: cx.theme().players().local(),
12464 text: text_style,
12465 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12466 syntax: cx.theme().syntax().clone(),
12467 status: cx.theme().status().clone(),
12468 inlay_hints_style: HighlightStyle {
12469 color: Some(cx.theme().status().hint),
12470 ..HighlightStyle::default()
12471 },
12472 suggestions_style: HighlightStyle {
12473 color: Some(cx.theme().status().predictive),
12474 ..HighlightStyle::default()
12475 },
12476 },
12477 )
12478 }
12479}
12480
12481impl ViewInputHandler for Editor {
12482 fn text_for_range(
12483 &mut self,
12484 range_utf16: Range<usize>,
12485 cx: &mut ViewContext<Self>,
12486 ) -> Option<String> {
12487 Some(
12488 self.buffer
12489 .read(cx)
12490 .read(cx)
12491 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12492 .collect(),
12493 )
12494 }
12495
12496 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12497 // Prevent the IME menu from appearing when holding down an alphabetic key
12498 // while input is disabled.
12499 if !self.input_enabled {
12500 return None;
12501 }
12502
12503 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12504 Some(range.start.0..range.end.0)
12505 }
12506
12507 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12508 let snapshot = self.buffer.read(cx).read(cx);
12509 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12510 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12511 }
12512
12513 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12514 self.clear_highlights::<InputComposition>(cx);
12515 self.ime_transaction.take();
12516 }
12517
12518 fn replace_text_in_range(
12519 &mut self,
12520 range_utf16: Option<Range<usize>>,
12521 text: &str,
12522 cx: &mut ViewContext<Self>,
12523 ) {
12524 if !self.input_enabled {
12525 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12526 return;
12527 }
12528
12529 self.transact(cx, |this, cx| {
12530 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12531 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12532 Some(this.selection_replacement_ranges(range_utf16, cx))
12533 } else {
12534 this.marked_text_ranges(cx)
12535 };
12536
12537 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12538 let newest_selection_id = this.selections.newest_anchor().id;
12539 this.selections
12540 .all::<OffsetUtf16>(cx)
12541 .iter()
12542 .zip(ranges_to_replace.iter())
12543 .find_map(|(selection, range)| {
12544 if selection.id == newest_selection_id {
12545 Some(
12546 (range.start.0 as isize - selection.head().0 as isize)
12547 ..(range.end.0 as isize - selection.head().0 as isize),
12548 )
12549 } else {
12550 None
12551 }
12552 })
12553 });
12554
12555 cx.emit(EditorEvent::InputHandled {
12556 utf16_range_to_replace: range_to_replace,
12557 text: text.into(),
12558 });
12559
12560 if let Some(new_selected_ranges) = new_selected_ranges {
12561 this.change_selections(None, cx, |selections| {
12562 selections.select_ranges(new_selected_ranges)
12563 });
12564 this.backspace(&Default::default(), cx);
12565 }
12566
12567 this.handle_input(text, cx);
12568 });
12569
12570 if let Some(transaction) = self.ime_transaction {
12571 self.buffer.update(cx, |buffer, cx| {
12572 buffer.group_until_transaction(transaction, cx);
12573 });
12574 }
12575
12576 self.unmark_text(cx);
12577 }
12578
12579 fn replace_and_mark_text_in_range(
12580 &mut self,
12581 range_utf16: Option<Range<usize>>,
12582 text: &str,
12583 new_selected_range_utf16: Option<Range<usize>>,
12584 cx: &mut ViewContext<Self>,
12585 ) {
12586 if !self.input_enabled {
12587 return;
12588 }
12589
12590 let transaction = self.transact(cx, |this, cx| {
12591 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12592 let snapshot = this.buffer.read(cx).read(cx);
12593 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12594 for marked_range in &mut marked_ranges {
12595 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12596 marked_range.start.0 += relative_range_utf16.start;
12597 marked_range.start =
12598 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12599 marked_range.end =
12600 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12601 }
12602 }
12603 Some(marked_ranges)
12604 } else if let Some(range_utf16) = range_utf16 {
12605 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12606 Some(this.selection_replacement_ranges(range_utf16, cx))
12607 } else {
12608 None
12609 };
12610
12611 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12612 let newest_selection_id = this.selections.newest_anchor().id;
12613 this.selections
12614 .all::<OffsetUtf16>(cx)
12615 .iter()
12616 .zip(ranges_to_replace.iter())
12617 .find_map(|(selection, range)| {
12618 if selection.id == newest_selection_id {
12619 Some(
12620 (range.start.0 as isize - selection.head().0 as isize)
12621 ..(range.end.0 as isize - selection.head().0 as isize),
12622 )
12623 } else {
12624 None
12625 }
12626 })
12627 });
12628
12629 cx.emit(EditorEvent::InputHandled {
12630 utf16_range_to_replace: range_to_replace,
12631 text: text.into(),
12632 });
12633
12634 if let Some(ranges) = ranges_to_replace {
12635 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12636 }
12637
12638 let marked_ranges = {
12639 let snapshot = this.buffer.read(cx).read(cx);
12640 this.selections
12641 .disjoint_anchors()
12642 .iter()
12643 .map(|selection| {
12644 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12645 })
12646 .collect::<Vec<_>>()
12647 };
12648
12649 if text.is_empty() {
12650 this.unmark_text(cx);
12651 } else {
12652 this.highlight_text::<InputComposition>(
12653 marked_ranges.clone(),
12654 HighlightStyle {
12655 underline: Some(UnderlineStyle {
12656 thickness: px(1.),
12657 color: None,
12658 wavy: false,
12659 }),
12660 ..Default::default()
12661 },
12662 cx,
12663 );
12664 }
12665
12666 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12667 let use_autoclose = this.use_autoclose;
12668 let use_auto_surround = this.use_auto_surround;
12669 this.set_use_autoclose(false);
12670 this.set_use_auto_surround(false);
12671 this.handle_input(text, cx);
12672 this.set_use_autoclose(use_autoclose);
12673 this.set_use_auto_surround(use_auto_surround);
12674
12675 if let Some(new_selected_range) = new_selected_range_utf16 {
12676 let snapshot = this.buffer.read(cx).read(cx);
12677 let new_selected_ranges = marked_ranges
12678 .into_iter()
12679 .map(|marked_range| {
12680 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12681 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12682 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12683 snapshot.clip_offset_utf16(new_start, Bias::Left)
12684 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12685 })
12686 .collect::<Vec<_>>();
12687
12688 drop(snapshot);
12689 this.change_selections(None, cx, |selections| {
12690 selections.select_ranges(new_selected_ranges)
12691 });
12692 }
12693 });
12694
12695 self.ime_transaction = self.ime_transaction.or(transaction);
12696 if let Some(transaction) = self.ime_transaction {
12697 self.buffer.update(cx, |buffer, cx| {
12698 buffer.group_until_transaction(transaction, cx);
12699 });
12700 }
12701
12702 if self.text_highlights::<InputComposition>(cx).is_none() {
12703 self.ime_transaction.take();
12704 }
12705 }
12706
12707 fn bounds_for_range(
12708 &mut self,
12709 range_utf16: Range<usize>,
12710 element_bounds: gpui::Bounds<Pixels>,
12711 cx: &mut ViewContext<Self>,
12712 ) -> Option<gpui::Bounds<Pixels>> {
12713 let text_layout_details = self.text_layout_details(cx);
12714 let style = &text_layout_details.editor_style;
12715 let font_id = cx.text_system().resolve_font(&style.text.font());
12716 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12717 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12718
12719 let em_width = cx
12720 .text_system()
12721 .typographic_bounds(font_id, font_size, 'm')
12722 .unwrap()
12723 .size
12724 .width;
12725
12726 let snapshot = self.snapshot(cx);
12727 let scroll_position = snapshot.scroll_position();
12728 let scroll_left = scroll_position.x * em_width;
12729
12730 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12731 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12732 + self.gutter_dimensions.width;
12733 let y = line_height * (start.row().as_f32() - scroll_position.y);
12734
12735 Some(Bounds {
12736 origin: element_bounds.origin + point(x, y),
12737 size: size(em_width, line_height),
12738 })
12739 }
12740}
12741
12742trait SelectionExt {
12743 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12744 fn spanned_rows(
12745 &self,
12746 include_end_if_at_line_start: bool,
12747 map: &DisplaySnapshot,
12748 ) -> Range<MultiBufferRow>;
12749}
12750
12751impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12752 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12753 let start = self
12754 .start
12755 .to_point(&map.buffer_snapshot)
12756 .to_display_point(map);
12757 let end = self
12758 .end
12759 .to_point(&map.buffer_snapshot)
12760 .to_display_point(map);
12761 if self.reversed {
12762 end..start
12763 } else {
12764 start..end
12765 }
12766 }
12767
12768 fn spanned_rows(
12769 &self,
12770 include_end_if_at_line_start: bool,
12771 map: &DisplaySnapshot,
12772 ) -> Range<MultiBufferRow> {
12773 let start = self.start.to_point(&map.buffer_snapshot);
12774 let mut end = self.end.to_point(&map.buffer_snapshot);
12775 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12776 end.row -= 1;
12777 }
12778
12779 let buffer_start = map.prev_line_boundary(start).0;
12780 let buffer_end = map.next_line_boundary(end).0;
12781 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12782 }
12783}
12784
12785impl<T: InvalidationRegion> InvalidationStack<T> {
12786 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12787 where
12788 S: Clone + ToOffset,
12789 {
12790 while let Some(region) = self.last() {
12791 let all_selections_inside_invalidation_ranges =
12792 if selections.len() == region.ranges().len() {
12793 selections
12794 .iter()
12795 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12796 .all(|(selection, invalidation_range)| {
12797 let head = selection.head().to_offset(buffer);
12798 invalidation_range.start <= head && invalidation_range.end >= head
12799 })
12800 } else {
12801 false
12802 };
12803
12804 if all_selections_inside_invalidation_ranges {
12805 break;
12806 } else {
12807 self.pop();
12808 }
12809 }
12810 }
12811}
12812
12813impl<T> Default for InvalidationStack<T> {
12814 fn default() -> Self {
12815 Self(Default::default())
12816 }
12817}
12818
12819impl<T> Deref for InvalidationStack<T> {
12820 type Target = Vec<T>;
12821
12822 fn deref(&self) -> &Self::Target {
12823 &self.0
12824 }
12825}
12826
12827impl<T> DerefMut for InvalidationStack<T> {
12828 fn deref_mut(&mut self) -> &mut Self::Target {
12829 &mut self.0
12830 }
12831}
12832
12833impl InvalidationRegion for SnippetState {
12834 fn ranges(&self) -> &[Range<Anchor>] {
12835 &self.ranges[self.active_index]
12836 }
12837}
12838
12839pub fn diagnostic_block_renderer(
12840 diagnostic: Diagnostic,
12841 max_message_rows: Option<u8>,
12842 allow_closing: bool,
12843 _is_valid: bool,
12844) -> RenderBlock {
12845 let (text_without_backticks, code_ranges) =
12846 highlight_diagnostic_message(&diagnostic, max_message_rows);
12847
12848 Box::new(move |cx: &mut BlockContext| {
12849 let group_id: SharedString = cx.block_id.to_string().into();
12850
12851 let mut text_style = cx.text_style().clone();
12852 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
12853 let theme_settings = ThemeSettings::get_global(cx);
12854 text_style.font_family = theme_settings.buffer_font.family.clone();
12855 text_style.font_style = theme_settings.buffer_font.style;
12856 text_style.font_features = theme_settings.buffer_font.features.clone();
12857 text_style.font_weight = theme_settings.buffer_font.weight;
12858
12859 let multi_line_diagnostic = diagnostic.message.contains('\n');
12860
12861 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
12862 if multi_line_diagnostic {
12863 v_flex()
12864 } else {
12865 h_flex()
12866 }
12867 .when(allow_closing, |div| {
12868 div.children(diagnostic.is_primary.then(|| {
12869 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
12870 .icon_color(Color::Muted)
12871 .size(ButtonSize::Compact)
12872 .style(ButtonStyle::Transparent)
12873 .visible_on_hover(group_id.clone())
12874 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12875 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12876 }))
12877 })
12878 .child(
12879 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
12880 .icon_color(Color::Muted)
12881 .size(ButtonSize::Compact)
12882 .style(ButtonStyle::Transparent)
12883 .visible_on_hover(group_id.clone())
12884 .on_click({
12885 let message = diagnostic.message.clone();
12886 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12887 })
12888 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12889 )
12890 };
12891
12892 let icon_size = buttons(&diagnostic, cx.block_id)
12893 .into_any_element()
12894 .layout_as_root(AvailableSpace::min_size(), cx);
12895
12896 h_flex()
12897 .id(cx.block_id)
12898 .group(group_id.clone())
12899 .relative()
12900 .size_full()
12901 .pl(cx.gutter_dimensions.width)
12902 .w(cx.max_width + cx.gutter_dimensions.width)
12903 .child(
12904 div()
12905 .flex()
12906 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12907 .flex_shrink(),
12908 )
12909 .child(buttons(&diagnostic, cx.block_id))
12910 .child(div().flex().flex_shrink_0().child(
12911 StyledText::new(text_without_backticks.clone()).with_highlights(
12912 &text_style,
12913 code_ranges.iter().map(|range| {
12914 (
12915 range.clone(),
12916 HighlightStyle {
12917 font_weight: Some(FontWeight::BOLD),
12918 ..Default::default()
12919 },
12920 )
12921 }),
12922 ),
12923 ))
12924 .into_any_element()
12925 })
12926}
12927
12928pub fn highlight_diagnostic_message(
12929 diagnostic: &Diagnostic,
12930 mut max_message_rows: Option<u8>,
12931) -> (SharedString, Vec<Range<usize>>) {
12932 let mut text_without_backticks = String::new();
12933 let mut code_ranges = Vec::new();
12934
12935 if let Some(source) = &diagnostic.source {
12936 text_without_backticks.push_str(&source);
12937 code_ranges.push(0..source.len());
12938 text_without_backticks.push_str(": ");
12939 }
12940
12941 let mut prev_offset = 0;
12942 let mut in_code_block = false;
12943 let has_row_limit = max_message_rows.is_some();
12944 let mut newline_indices = diagnostic
12945 .message
12946 .match_indices('\n')
12947 .filter(|_| has_row_limit)
12948 .map(|(ix, _)| ix)
12949 .fuse()
12950 .peekable();
12951
12952 for (quote_ix, _) in diagnostic
12953 .message
12954 .match_indices('`')
12955 .chain([(diagnostic.message.len(), "")])
12956 {
12957 let mut first_newline_ix = None;
12958 let mut last_newline_ix = None;
12959 while let Some(newline_ix) = newline_indices.peek() {
12960 if *newline_ix < quote_ix {
12961 if first_newline_ix.is_none() {
12962 first_newline_ix = Some(*newline_ix);
12963 }
12964 last_newline_ix = Some(*newline_ix);
12965
12966 if let Some(rows_left) = &mut max_message_rows {
12967 if *rows_left == 0 {
12968 break;
12969 } else {
12970 *rows_left -= 1;
12971 }
12972 }
12973 let _ = newline_indices.next();
12974 } else {
12975 break;
12976 }
12977 }
12978 let prev_len = text_without_backticks.len();
12979 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
12980 text_without_backticks.push_str(new_text);
12981 if in_code_block {
12982 code_ranges.push(prev_len..text_without_backticks.len());
12983 }
12984 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
12985 in_code_block = !in_code_block;
12986 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
12987 text_without_backticks.push_str("...");
12988 break;
12989 }
12990 }
12991
12992 (text_without_backticks.into(), code_ranges)
12993}
12994
12995fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
12996 match severity {
12997 DiagnosticSeverity::ERROR => colors.error,
12998 DiagnosticSeverity::WARNING => colors.warning,
12999 DiagnosticSeverity::INFORMATION => colors.info,
13000 DiagnosticSeverity::HINT => colors.info,
13001 _ => colors.ignored,
13002 }
13003}
13004
13005pub fn styled_runs_for_code_label<'a>(
13006 label: &'a CodeLabel,
13007 syntax_theme: &'a theme::SyntaxTheme,
13008) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
13009 let fade_out = HighlightStyle {
13010 fade_out: Some(0.35),
13011 ..Default::default()
13012 };
13013
13014 let mut prev_end = label.filter_range.end;
13015 label
13016 .runs
13017 .iter()
13018 .enumerate()
13019 .flat_map(move |(ix, (range, highlight_id))| {
13020 let style = if let Some(style) = highlight_id.style(syntax_theme) {
13021 style
13022 } else {
13023 return Default::default();
13024 };
13025 let mut muted_style = style;
13026 muted_style.highlight(fade_out);
13027
13028 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
13029 if range.start >= label.filter_range.end {
13030 if range.start > prev_end {
13031 runs.push((prev_end..range.start, fade_out));
13032 }
13033 runs.push((range.clone(), muted_style));
13034 } else if range.end <= label.filter_range.end {
13035 runs.push((range.clone(), style));
13036 } else {
13037 runs.push((range.start..label.filter_range.end, style));
13038 runs.push((label.filter_range.end..range.end, muted_style));
13039 }
13040 prev_end = cmp::max(prev_end, range.end);
13041
13042 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
13043 runs.push((prev_end..label.text.len(), fade_out));
13044 }
13045
13046 runs
13047 })
13048}
13049
13050pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
13051 let mut prev_index = 0;
13052 let mut prev_codepoint: Option<char> = None;
13053 text.char_indices()
13054 .chain([(text.len(), '\0')])
13055 .filter_map(move |(index, codepoint)| {
13056 let prev_codepoint = prev_codepoint.replace(codepoint)?;
13057 let is_boundary = index == text.len()
13058 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
13059 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
13060 if is_boundary {
13061 let chunk = &text[prev_index..index];
13062 prev_index = index;
13063 Some(chunk)
13064 } else {
13065 None
13066 }
13067 })
13068}
13069
13070pub trait RangeToAnchorExt: Sized {
13071 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
13072
13073 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
13074 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
13075 anchor_range.start.to_display_point(&snapshot)..anchor_range.end.to_display_point(&snapshot)
13076 }
13077}
13078
13079impl<T: ToOffset> RangeToAnchorExt for Range<T> {
13080 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
13081 let start_offset = self.start.to_offset(snapshot);
13082 let end_offset = self.end.to_offset(snapshot);
13083 if start_offset == end_offset {
13084 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
13085 } else {
13086 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
13087 }
13088 }
13089}
13090
13091pub trait RowExt {
13092 fn as_f32(&self) -> f32;
13093
13094 fn next_row(&self) -> Self;
13095
13096 fn previous_row(&self) -> Self;
13097
13098 fn minus(&self, other: Self) -> u32;
13099}
13100
13101impl RowExt for DisplayRow {
13102 fn as_f32(&self) -> f32 {
13103 self.0 as f32
13104 }
13105
13106 fn next_row(&self) -> Self {
13107 Self(self.0 + 1)
13108 }
13109
13110 fn previous_row(&self) -> Self {
13111 Self(self.0.saturating_sub(1))
13112 }
13113
13114 fn minus(&self, other: Self) -> u32 {
13115 self.0 - other.0
13116 }
13117}
13118
13119impl RowExt for MultiBufferRow {
13120 fn as_f32(&self) -> f32 {
13121 self.0 as f32
13122 }
13123
13124 fn next_row(&self) -> Self {
13125 Self(self.0 + 1)
13126 }
13127
13128 fn previous_row(&self) -> Self {
13129 Self(self.0.saturating_sub(1))
13130 }
13131
13132 fn minus(&self, other: Self) -> u32 {
13133 self.0 - other.0
13134 }
13135}
13136
13137trait RowRangeExt {
13138 type Row;
13139
13140 fn len(&self) -> usize;
13141
13142 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
13143}
13144
13145impl RowRangeExt for Range<MultiBufferRow> {
13146 type Row = MultiBufferRow;
13147
13148 fn len(&self) -> usize {
13149 (self.end.0 - self.start.0) as usize
13150 }
13151
13152 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
13153 (self.start.0..self.end.0).map(MultiBufferRow)
13154 }
13155}
13156
13157impl RowRangeExt for Range<DisplayRow> {
13158 type Row = DisplayRow;
13159
13160 fn len(&self) -> usize {
13161 (self.end.0 - self.start.0) as usize
13162 }
13163
13164 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
13165 (self.start.0..self.end.0).map(DisplayRow)
13166 }
13167}
13168
13169fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
13170 if hunk.diff_base_byte_range.is_empty() {
13171 DiffHunkStatus::Added
13172 } else if hunk.associated_range.is_empty() {
13173 DiffHunkStatus::Removed
13174 } else {
13175 DiffHunkStatus::Modified
13176 }
13177}